2 * marshal.c: Routines for marshaling complex types in P/Invoke methods.
5 * Paolo Molaro (lupus@ximian.com)
7 * (C) 2002 Ximian, Inc. http://www.ximian.com
14 #include "metadata/marshal.h"
15 #include "metadata/method-builder.h"
16 #include "metadata/tabledefs.h"
17 #include "metadata/exception.h"
18 #include "metadata/appdomain.h"
19 #include "mono/metadata/debug-helpers.h"
20 #include "mono/metadata/threadpool.h"
21 #include "mono/metadata/threads.h"
22 #include "mono/metadata/monitor.h"
23 #include "mono/metadata/metadata-internals.h"
24 #include "mono/metadata/domain-internals.h"
25 #include "mono/metadata/gc-internal.h"
26 #include "mono/metadata/threads-types.h"
27 #include "mono/metadata/string-icalls.h"
28 #include <mono/metadata/gc-internal.h>
32 /* #define DEBUG_RUNTIME_CODE */
34 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
38 MONO_MARSHAL_NONE, /* No marshalling needed */
39 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
40 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
41 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
42 } MonoXDomainMarshalType;
45 #include "mono/cil/opcode.def"
50 struct _MonoRemotingMethods {
52 MonoMethod *invoke_with_check;
53 MonoMethod *xdomain_invoke;
54 MonoMethod *xdomain_dispatch;
57 typedef struct _MonoRemotingMethods MonoRemotingMethods;
60 * This mutex protects the various marshalling related caches in MonoImage
61 * and a few other data structures static to this file.
62 * Note that when this lock is held it is not possible to take other runtime
63 * locks like the loader lock.
65 #define mono_marshal_lock() EnterCriticalSection (&marshal_mutex)
66 #define mono_marshal_unlock() LeaveCriticalSection (&marshal_mutex)
67 static CRITICAL_SECTION marshal_mutex;
69 /* This mutex protects the various cominterop related caches in MonoImage */
70 #define mono_cominterop_lock() EnterCriticalSection (&cominterop_mutex)
71 #define mono_cominterop_unlock() LeaveCriticalSection (&cominterop_mutex)
72 static CRITICAL_SECTION cominterop_mutex;
74 /* Maps wrapper methods to the methods they wrap */
75 static GHashTable *wrapper_hash;
77 static guint32 last_error_tls_id;
79 static guint32 load_type_info_tls_id;
82 delegate_hash_table_add (MonoDelegate *d);
85 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object);
88 mono_struct_delete_old (MonoClass *klass, char *ptr);
91 mono_marshal_string_to_utf16 (MonoString *s);
94 mono_marshal_string_to_utf16_copy (MonoString *s);
97 mono_string_to_lpstr (MonoString *string_obj);
100 mono_string_from_bstr (gpointer bstr);
103 mono_free_bstr (gpointer bstr);
106 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *eltype, guint32 elnum);
109 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *eltype, guint32 elnum);
112 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
114 static MonoAsyncResult *
115 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params);
118 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params);
121 mono_marshal_xdomain_copy_value (MonoObject *val);
124 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
127 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
130 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
133 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
135 static MonoReflectionType *
136 type_from_handle (MonoType *handle);
139 mono_marshal_set_last_error_windows (int error);
142 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean check_exceptions);
144 static void init_safe_handle (void);
146 /* MonoMethod pointers to SafeHandle::DangerousAddRef and ::DangerousRelease */
147 static MonoMethod *sh_dangerous_add_ref;
148 static MonoMethod *sh_dangerous_release;
154 sh_dangerous_add_ref = mono_class_get_method_from_name (
155 mono_defaults.safehandle_class, "DangerousAddRef", 1);
156 sh_dangerous_release = mono_class_get_method_from_name (
157 mono_defaults.safehandle_class, "DangerousRelease", 0);
161 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
163 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
165 mono_register_jit_icall (func, name, sig, save);
168 static MonoMethodSignature*
169 signature_dup (MonoImage *image, MonoMethodSignature *sig)
171 MonoMethodSignature *res;
174 sigsize = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
176 res = mono_mempool_alloc (image->mempool, sigsize);
177 mono_loader_unlock ();
178 memcpy (res, sig, sigsize);
183 static MonoMethodSignature*
184 signature_no_pinvoke (MonoMethod *method)
186 MonoMethodSignature *sig = mono_method_signature (method);
188 sig = signature_dup (method->klass->image, sig);
189 sig->pinvoke = FALSE;
195 /* Begin COM Interop related stuff until seperate file */
198 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
199 #ifdef PLATFORM_WIN32
200 #define STDCALL __stdcall
205 /* Upon creation of a CCW, only allocate a weak handle and set the
206 * reference count to 0. If the unmanaged client code decides to addref and
207 * hold onto the CCW, I then allocate a strong handle. Once the reference count
208 * goes back to 0, convert back to a weak handle.
213 GHashTable* vtable_hash;
216 /* This type is the actual pointer passed to unmanaged code
217 * to represent a COM interface.
225 static int STDCALL cominterop_ccw_addref (MonoCCWInterface* ccwe);
227 static int STDCALL cominterop_ccw_release (MonoCCWInterface* ccwe);
229 static int STDCALL cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv);
232 static int STDCALL cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo);
234 static int STDCALL cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo);
236 static int STDCALL cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
237 gunichar2** rgszNames, guint32 cNames,
238 guint32 lcid, gint32 *rgDispId);
240 static int STDCALL cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
241 gpointer riid, guint32 lcid,
242 guint16 wFlags, gpointer pDispParams,
243 gpointer pVarResult, gpointer pExcepInfo,
247 cominterop_get_managed_wrapper_adjusted (MonoMethod *method);
250 cominterop_get_ccw (MonoObject* object, MonoClass* itf);
253 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify);
256 * cominterop_method_signature:
259 * Returns: the corresponding unmanaged method signature for a managed COM
262 static MonoMethodSignature*
263 cominterop_method_signature (MonoMethod* method)
265 MonoMethodSignature *res;
266 MonoImage *image = method->klass->image;
267 MonoMethodSignature *sig = mono_method_signature (method);
268 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
271 int param_count = sig->param_count + 1; // convert this arg into IntPtr arg
273 if (!preserve_sig &&!MONO_TYPE_IS_VOID (sig->ret))
276 sigsize = sizeof (MonoMethodSignature) + ((param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *));
278 res = mono_mempool_alloc (image->mempool, sigsize);
279 mono_loader_unlock ();
280 memcpy (res, sig, sigsize);
282 // now move args forward one
283 for (i = sig->param_count-1; i >= 0; i--)
284 res->params[i+1] = sig->params[i];
286 // first arg is interface pointer
287 res->params[0] = &mono_defaults.int_class->byval_arg;
293 // last arg is return type
294 if (!MONO_TYPE_IS_VOID (sig->ret)) {
295 res->params[param_count-1] = mono_metadata_type_dup (image->mempool, sig->ret);
296 res->params[param_count-1]->byref = 1;
297 res->params[param_count-1]->attrs = PARAM_ATTRIBUTE_OUT;
300 // return type is always int32 (HRESULT)
301 res->ret = &mono_defaults.int32_class->byval_arg;
305 res->pinvoke = FALSE;
311 res->param_count = param_count;
313 // STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM
314 #ifdef PLATFORM_WIN32
315 res->call_convention = MONO_CALL_STDCALL;
317 res->call_convention = MONO_CALL_C;
324 * cominterop_get_function_pointer:
325 * @itf: a pointer to the COM interface
326 * @slot: the vtable slot of the method pointer to return
328 * Returns: the unmanaged vtable function pointer from the interface
331 cominterop_get_function_pointer (gpointer itf, int slot)
334 func = *((*(gpointer**)itf)+slot);
339 * cominterop_object_is_com_object:
340 * @obj: a pointer to the object
342 * Returns: a value indicating if the object is a
343 * Runtime Callable Wrapper (RCW) for a COM object
346 cominterop_object_is_rcw (MonoObject *obj)
348 MonoClass *klass = NULL;
349 MonoRealProxy* real_proxy = NULL;
352 klass = mono_object_class (obj);
353 if (klass != mono_defaults.transparent_proxy_class)
356 real_proxy = ((MonoTransparentProxy*)obj)->rp;
360 klass = mono_object_class (real_proxy);
361 return (klass && klass == mono_defaults.com_interop_proxy_class);
365 cominterop_get_com_slot_begin (MonoClass* klass)
367 static MonoClass *interface_type_attribute = NULL;
368 MonoCustomAttrInfo *cinfo = NULL;
369 MonoInterfaceTypeAttribute* itf_attr = NULL;
371 if (!interface_type_attribute)
372 interface_type_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "InterfaceTypeAttribute");
373 cinfo = mono_custom_attrs_from_class (klass);
375 itf_attr = (MonoInterfaceTypeAttribute*)mono_custom_attrs_get_attr (cinfo, interface_type_attribute);
377 mono_custom_attrs_free (cinfo);
380 if (itf_attr && itf_attr->intType == 1)
381 return 3; /* 3 methods in IUnknown*/
383 return 7; /* 7 methods in IDispatch*/
387 * cominterop_get_method_interface:
388 * @method: method being called
390 * Returns: the MonoClass* representing the interface on which
391 * the method is defined.
394 cominterop_get_method_interface (MonoMethod* method)
396 MonoClass *ic = method->klass;
398 /* if method is on a class, we need to look up interface method exists on */
399 if (!MONO_CLASS_IS_INTERFACE(method->klass)) {
400 GPtrArray *ifaces = mono_class_get_implemented_interfaces (method->klass);
403 for (i = 0; i < ifaces->len; ++i) {
405 ic = g_ptr_array_index (ifaces, i);
406 offset = mono_class_interface_offset (method->klass, ic);
407 if (method->slot >= offset && method->slot < offset + ic->method.count)
411 g_ptr_array_free (ifaces, TRUE);
416 g_assert (MONO_CLASS_IS_INTERFACE (ic));
422 * cominterop_get_com_slot_for_method:
425 * Returns: the method's slot in the COM interface vtable
428 cominterop_get_com_slot_for_method (MonoMethod* method)
430 guint32 slot = method->slot;
431 MonoClass *ic = method->klass;
433 /* if method is on a class, we need to look up interface method exists on */
434 if (!MONO_CLASS_IS_INTERFACE(ic)) {
436 ic = cominterop_get_method_interface (method);
437 offset = mono_class_interface_offset (method->klass, ic);
438 g_assert(offset >= 0);
443 g_assert (MONO_CLASS_IS_INTERFACE (ic));
445 return slot + cominterop_get_com_slot_begin (ic);
450 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid);
453 cominterop_class_guid (MonoClass* klass, guint8* guid)
455 static MonoClass *GuidAttribute = NULL;
456 MonoCustomAttrInfo *cinfo;
458 /* Handle the GuidAttribute */
460 GuidAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "GuidAttribute");
462 cinfo = mono_custom_attrs_from_class (klass);
464 MonoReflectionGuidAttribute *attr = (MonoReflectionGuidAttribute*)mono_custom_attrs_get_attr (cinfo, GuidAttribute);
469 mono_custom_attrs_free (cinfo);
471 cominterop_mono_string_to_guid (attr->guid, guid);
478 * cominterop_get_interface:
479 * @obj: managed wrapper object containing COM object
480 * @ic: interface type to retrieve for COM object
482 * Returns: the COM interface requested
485 cominterop_get_interface (MonoComObject* obj, MonoClass* ic, gboolean throw_exception)
490 g_assert (MONO_CLASS_IS_INTERFACE (ic));
492 mono_cominterop_lock ();
494 itf = g_hash_table_lookup (obj->itf_hash, GUINT_TO_POINTER ((guint)ic->interface_id));
495 mono_cominterop_unlock ();
499 int found = cominterop_class_guid (ic, iid);
502 hr = ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (obj->iunknown, iid, &itf);
503 if (hr < 0 && throw_exception) {
504 static MonoMethod* throw_exception_for_hr = NULL;
506 void* params[1] = {&hr};
507 if (!throw_exception_for_hr)
508 throw_exception_for_hr = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetExceptionForHR", 1);
509 ex = (MonoException*)mono_runtime_invoke (throw_exception_for_hr, NULL, params, NULL);
510 mono_raise_exception (ex);
513 if (hr >= 0 && itf) {
514 mono_cominterop_lock ();
516 obj->itf_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
517 g_hash_table_insert (obj->itf_hash, GUINT_TO_POINTER ((guint)ic->interface_id), itf);
518 mono_cominterop_unlock ();
529 cominterop_get_hresult_for_exception (MonoException* exc)
536 mono_marshal_init (void)
538 static gboolean module_initialized = FALSE;
540 if (!module_initialized) {
541 module_initialized = TRUE;
542 InitializeCriticalSection (&marshal_mutex);
543 InitializeCriticalSection (&cominterop_mutex);
544 wrapper_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
545 last_error_tls_id = TlsAlloc ();
546 load_type_info_tls_id = TlsAlloc ();
548 register_icall (mono_marshal_string_to_utf16, "mono_marshal_string_to_utf16", "ptr obj", FALSE);
549 register_icall (mono_marshal_string_to_utf16_copy, "mono_marshal_string_to_utf16_copy", "ptr obj", FALSE);
550 register_icall (mono_string_to_utf16, "mono_string_to_utf16", "ptr obj", FALSE);
551 register_icall (mono_string_from_utf16, "mono_string_from_utf16", "obj ptr", FALSE);
552 register_icall (mono_string_new_wrapper, "mono_string_new_wrapper", "obj ptr", FALSE);
553 register_icall (mono_string_to_utf8, "mono_string_to_utf8", "ptr obj", FALSE);
554 register_icall (mono_string_to_lpstr, "mono_string_to_lpstr", "ptr obj", FALSE);
555 register_icall (mono_string_to_bstr, "mono_string_to_bstr", "ptr obj", FALSE);
556 register_icall (mono_string_from_bstr, "mono_string_from_bstr", "obj ptr", FALSE);
557 register_icall (mono_free_bstr, "mono_free_bstr", "void ptr", FALSE);
558 register_icall (mono_string_to_ansibstr, "mono_string_to_ansibstr", "ptr object", FALSE);
559 register_icall (mono_string_builder_to_utf8, "mono_string_builder_to_utf8", "ptr object", FALSE);
560 register_icall (mono_string_builder_to_utf16, "mono_string_builder_to_utf16", "ptr object", FALSE);
561 register_icall (mono_array_to_savearray, "mono_array_to_savearray", "ptr object", FALSE);
562 register_icall (mono_array_to_lparray, "mono_array_to_lparray", "ptr object", FALSE);
563 register_icall (mono_byvalarray_to_array, "mono_byvalarray_to_array", "void object ptr ptr int32", FALSE);
564 register_icall (mono_array_to_byvalarray, "mono_array_to_byvalarray", "void ptr object ptr int32", FALSE);
565 register_icall (mono_delegate_to_ftnptr, "mono_delegate_to_ftnptr", "ptr object", FALSE);
566 register_icall (mono_ftnptr_to_delegate, "mono_ftnptr_to_delegate", "object ptr ptr", FALSE);
567 register_icall (mono_marshal_asany, "mono_marshal_asany", "ptr object int32 int32", FALSE);
568 register_icall (mono_marshal_free_asany, "mono_marshal_free_asany", "void object ptr int32 int32", FALSE);
569 register_icall (mono_marshal_alloc, "mono_marshal_alloc", "ptr int32", FALSE);
570 register_icall (mono_marshal_free, "mono_marshal_free", "void ptr", FALSE);
571 register_icall (mono_marshal_set_last_error, "mono_marshal_set_last_error", "void", FALSE);
572 register_icall (mono_marshal_set_last_error_windows, "mono_marshal_set_last_error_windows", "void int32", FALSE);
573 register_icall (mono_string_utf8_to_builder, "mono_string_utf8_to_builder", "void ptr ptr", FALSE);
574 register_icall (mono_string_utf16_to_builder, "mono_string_utf16_to_builder", "void ptr ptr", FALSE);
575 register_icall (mono_marshal_free_array, "mono_marshal_free_array", "void ptr int32", FALSE);
576 register_icall (mono_string_to_byvalstr, "mono_string_to_byvalstr", "void ptr ptr int32", FALSE);
577 register_icall (mono_string_to_byvalwstr, "mono_string_to_byvalwstr", "void ptr ptr int32", FALSE);
578 register_icall (g_free, "g_free", "void ptr", FALSE);
579 register_icall (mono_object_isinst, "mono_object_isinst", "object object ptr", FALSE);
580 register_icall (mono_struct_delete_old, "mono_struct_delete_old", "void ptr ptr", FALSE);
581 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
582 register_icall (mono_delegate_begin_invoke, "mono_delegate_begin_invoke", "object object ptr", FALSE);
583 register_icall (mono_delegate_end_invoke, "mono_delegate_end_invoke", "object object ptr", FALSE);
584 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
585 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
586 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
587 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
588 register_icall (mono_compile_method, "mono_compile_method", "ptr ptr", FALSE);
589 register_icall (mono_context_get, "mono_context_get", "object", FALSE);
590 register_icall (mono_context_set, "mono_context_set", "void object", FALSE);
591 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
592 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
593 register_icall (mono_gc_wbarrier_generic_store, "wb_generic", "void ptr object", FALSE);
594 register_icall (cominterop_get_method_interface, "cominterop_get_method_interface", "ptr ptr", FALSE);
595 register_icall (cominterop_get_function_pointer, "cominterop_get_function_pointer", "ptr ptr int32", FALSE);
596 register_icall (cominterop_object_is_rcw, "cominterop_object_is_rcw", "int32 object", FALSE);
597 register_icall (cominterop_get_ccw, "cominterop_get_ccw", "ptr object ptr", FALSE);
598 register_icall (cominterop_get_ccw_object, "cominterop_get_ccw_object", "object ptr int32", FALSE);
599 register_icall (cominterop_get_hresult_for_exception, "cominterop_get_hresult_for_exception", "int32 object", FALSE);
600 register_icall (cominterop_get_interface, "cominterop_get_interface", "ptr object ptr int32", FALSE);
605 mono_marshal_cleanup (void)
607 g_hash_table_destroy (wrapper_hash);
608 TlsFree (load_type_info_tls_id);
609 TlsFree (last_error_tls_id);
610 DeleteCriticalSection (&marshal_mutex);
611 DeleteCriticalSection (&cominterop_mutex);
614 MonoClass *byte_array_class;
615 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
616 static MonoMethod *method_set_context, *method_get_context;
617 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
620 mono_remoting_marshal_init (void)
624 static gboolean module_initialized = FALSE;
626 if (!module_initialized) {
627 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
628 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
629 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
630 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
632 klass = mono_defaults.real_proxy_class;
633 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
635 klass = mono_defaults.exception_class;
636 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
638 klass = mono_defaults.thread_class;
639 method_get_context = mono_class_get_method_from_name (klass, "get_CurrentContext", -1);
641 klass = mono_defaults.appdomain_class;
642 method_set_context = mono_class_get_method_from_name (klass, "InternalSetContext", -1);
643 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
645 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
646 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
648 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
649 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
651 module_initialized = TRUE;
656 mono_delegate_to_ftnptr (MonoDelegate *delegate)
658 MonoMethod *method, *wrapper;
664 if (delegate->delegate_trampoline)
665 return delegate->delegate_trampoline;
667 klass = ((MonoObject *)delegate)->vtable->klass;
668 g_assert (klass->delegate);
670 method = delegate->method;
672 wrapper = mono_marshal_get_managed_wrapper (method, klass, delegate->target);
674 delegate->delegate_trampoline = mono_compile_method (wrapper);
676 // Add the delegate to the delegate hash table
677 delegate_hash_table_add (delegate);
679 /* when the object is collected, collect the dynamic method, too */
680 mono_object_register_finalizer ((MonoObject*)delegate);
682 return delegate->delegate_trampoline;
686 * this hash table maps from a delegate trampoline object to a weak reference
687 * of the delegate. As an optimizations with a non-moving GC we store the
688 * object pointer itself, otherwise we use a GC handle.
690 static GHashTable *delegate_hash_table;
693 delegate_hash_table_new (void) {
694 return g_hash_table_new (NULL, NULL);
698 delegate_hash_table_remove (MonoDelegate *d)
700 #ifdef HAVE_MOVING_COLLECTOR
703 mono_marshal_lock ();
704 if (delegate_hash_table == NULL)
705 delegate_hash_table = delegate_hash_table_new ();
706 #ifdef HAVE_MOVING_COLLECTOR
707 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, d->delegate_trampoline));
709 g_hash_table_remove (delegate_hash_table, d->delegate_trampoline);
710 mono_marshal_unlock ();
711 #ifdef HAVE_MOVING_COLLECTOR
712 mono_gchandle_free (gchandle);
717 delegate_hash_table_add (MonoDelegate *d)
719 #ifdef HAVE_MOVING_COLLECTOR
720 guint32 gchandle = mono_gchandle_new_weakref ((MonoObject*)d, FALSE);
722 mono_marshal_lock ();
723 if (delegate_hash_table == NULL)
724 delegate_hash_table = delegate_hash_table_new ();
725 #ifdef HAVE_MOVING_COLLECTOR
726 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, GUINT_TO_POINTER (gchandle));
728 g_hash_table_insert (delegate_hash_table, d->delegate_trampoline, d);
730 mono_marshal_unlock ();
734 mono_ftnptr_to_delegate (MonoClass *klass, gpointer ftn)
736 #ifdef HAVE_MOVING_COLLECTOR
741 mono_marshal_lock ();
742 if (delegate_hash_table == NULL)
743 delegate_hash_table = delegate_hash_table_new ();
745 #ifdef HAVE_MOVING_COLLECTOR
746 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (delegate_hash_table, ftn));
747 mono_marshal_unlock ();
749 d = (MonoDelegate*)mono_gchandle_get_target (gchandle);
753 d = g_hash_table_lookup (delegate_hash_table, ftn);
754 mono_marshal_unlock ();
757 /* This is a native function, so construct a delegate for it */
758 static MonoClass *UnmanagedFunctionPointerAttribute;
759 MonoMethodSignature *sig;
761 MonoMarshalSpec **mspecs;
762 MonoCustomAttrInfo *cinfo;
763 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
764 MonoMethod *invoke = mono_get_delegate_invoke (klass);
765 MonoMethodPInvoke piinfo;
768 memset (&piinfo, 0, sizeof (piinfo));
769 if (!UnmanagedFunctionPointerAttribute)
770 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
772 /* The attribute is only available in Net 2.0 */
773 if (UnmanagedFunctionPointerAttribute) {
775 * The pinvoke attributes are stored in a real custom attribute so we have to
778 cinfo = mono_custom_attrs_from_class (klass);
780 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
782 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
785 mono_custom_attrs_free (cinfo);
789 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
790 mono_method_get_marshal_info (invoke, mspecs);
791 /* Freed below so don't alloc from mempool */
792 sig = mono_metadata_signature_dup (mono_method_signature (invoke));
795 wrapper = mono_marshal_get_native_func_wrapper (klass->image, sig, &piinfo, mspecs, ftn);
797 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
799 mono_metadata_free_marshal_spec (mspecs [i]);
803 d = (MonoDelegate*)mono_object_new (mono_domain_get (), klass);
804 mono_delegate_ctor ((MonoObject*)d, NULL, mono_compile_method (wrapper));
807 if (d->object.vtable->domain != mono_domain_get ())
808 mono_raise_exception (mono_get_exception_not_supported ("Delegates cannot be marshalled from native code into a domain other than their home domain"));
814 mono_delegate_free_ftnptr (MonoDelegate *delegate)
819 delegate_hash_table_remove (delegate);
821 ptr = (gpointer)InterlockedExchangePointer (&delegate->delegate_trampoline, NULL);
823 if (!delegate->target) {
824 /* The wrapper method is shared between delegates -> no need to free it */
829 ji = mono_jit_info_table_find (mono_domain_get (), mono_get_addr_from_ftnptr (ptr));
832 mono_runtime_free_method (mono_object_domain (delegate), ji->method);
837 mono_array_to_savearray (MonoArray *array)
842 g_assert_not_reached ();
847 mono_array_to_lparray (MonoArray *array)
852 /* fixme: maybe we need to make a copy */
853 return array->vector;
857 mono_byvalarray_to_array (MonoArray *arr, gpointer native_arr, MonoClass *elclass, guint32 elnum)
859 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
861 if (elclass == mono_defaults.byte_class) {
862 GError *error = NULL;
866 ut = g_utf8_to_utf16 (native_arr, elnum, NULL, &items_written, &error);
869 memcpy (mono_array_addr (arr, guint16, 0), ut, items_written * sizeof (guint16));
873 g_error_free (error);
876 g_assert_not_reached ();
880 mono_array_to_byvalarray (gpointer native_arr, MonoArray *arr, MonoClass *elclass, guint32 elnum)
882 g_assert (arr->obj.vtable->klass->element_class == mono_defaults.char_class);
884 if (elclass == mono_defaults.byte_class) {
886 GError *error = NULL;
888 as = g_utf16_to_utf8 (mono_array_addr (arr, gunichar2, 0), mono_array_length (arr), NULL, NULL, &error);
890 MonoException *exc = mono_get_exception_argument ("string", error->message);
891 g_error_free (error);
892 mono_raise_exception (exc);
895 memcpy (native_arr, as, MIN (strlen (as), elnum));
898 g_assert_not_reached ();
903 mono_string_utf8_to_builder (MonoStringBuilder *sb, char *text)
905 GError *error = NULL;
915 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
917 if (items_written > mono_stringbuilder_capacity (sb))
918 items_written = mono_stringbuilder_capacity (sb);
921 if (! sb->str || sb->str == sb->cached_str) {
922 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), items_written));
923 sb->cached_str = NULL;
926 memcpy (mono_string_chars (sb->str), ut, items_written * 2);
927 sb->length = items_written;
929 g_error_free (error);
935 * FIXME: This routine does not seem to do what it seems to do
936 * the @text is never copied into the string builder
939 mono_string_utf16_to_builder (MonoStringBuilder *sb, gunichar2 *text)
946 g_assert (mono_string_chars (sb->str) == text);
948 for (len = 0; text [len] != 0; ++len)
955 * mono_string_builder_to_utf8:
956 * @sb: the string builder
958 * Converts to utf8 the contents of the MonoStringBuilder.
960 * Returns: a utf8 string with the contents of the StringBuilder.
962 * The return value must be released with g_free.
965 mono_string_builder_to_utf8 (MonoStringBuilder *sb)
967 GError *error = NULL;
974 if ((sb->str == sb->cached_str) && (sb->str->length == 0)) {
976 * The sb could have been allocated with the default capacity and be empty.
977 * we need to alloc a buffer of the default capacity in this case.
979 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
980 sb->cached_str = NULL;
983 res = mono_marshal_alloc (mono_stringbuilder_capacity (sb) + 1);
985 tmp = g_utf16_to_utf8 (mono_string_chars (sb->str), sb->length, NULL, res, &error);
987 g_error_free (error);
988 mono_marshal_free (res);
989 mono_raise_exception (mono_get_exception_execution_engine ("Failed to convert StringBuilder from utf16 to utf8"));
991 memcpy (res, tmp, sb->length + 1);
999 * mono_string_builder_to_utf16:
1000 * @sb: the string builder
1002 * Converts to utf16 the contents of the MonoStringBuilder.
1004 * Returns: a utf16 string with the contents of the StringBuilder.
1006 * The return value must not be freed.
1009 mono_string_builder_to_utf16 (MonoStringBuilder *sb)
1017 * The stringbuilder might not have ownership of this string. If this is
1018 * the case, we must duplicate the string, so that we don't munge immutable
1021 if (sb->str == sb->cached_str) {
1023 * The sb could have been allocated with the default capacity and be empty.
1024 * we need to alloc a buffer of the default capacity in this case.
1026 if (sb->str->length == 0)
1027 MONO_OBJECT_SETREF (sb, str, mono_string_new_size (mono_domain_get (), 16));
1029 MONO_OBJECT_SETREF (sb, str, mono_string_new_utf16 (mono_domain_get (), mono_string_chars (sb->str), mono_stringbuilder_capacity (sb)));
1030 sb->cached_str = NULL;
1033 return mono_string_chars (sb->str);
1037 mono_string_to_lpstr (MonoString *s)
1039 #ifdef PLATFORM_WIN32
1042 GError *error = NULL;
1048 as = CoTaskMemAlloc (1);
1053 tmp = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &len, &error);
1055 MonoException *exc = mono_get_exception_argument ("string", error->message);
1056 g_error_free (error);
1057 mono_raise_exception(exc);
1060 as = CoTaskMemAlloc (len + 1);
1061 memcpy (as, tmp, len + 1);
1066 return mono_string_to_utf8 (s);
1071 mono_string_to_ansibstr (MonoString *string_obj)
1073 g_error ("UnmanagedMarshal.BStr is not implemented.");
1078 mono_string_to_bstr (MonoString *string_obj)
1080 #ifdef PLATFORM_WIN32
1083 return SysAllocStringLen (mono_string_chars (string_obj), mono_string_length (string_obj));
1085 int slen = mono_string_length (string_obj);
1086 char *ret = g_malloc (slen * 2 + 4 + 2);
1089 memcpy (ret + 4, mono_string_chars (string_obj), slen * 2);
1090 * ((guint32 *) ret) = slen * 2;
1091 ret [4 + slen * 2] = 0;
1092 ret [5 + slen * 2] = 0;
1099 mono_string_from_bstr (gpointer bstr)
1101 #ifdef PLATFORM_WIN32
1104 return mono_string_new_utf16 (mono_domain_get (), bstr, SysStringLen (bstr));
1106 return mono_string_new_utf16 (mono_domain_get (), bstr, *(guint32 *)((char *)bstr - 4) / 2);
1111 mono_free_bstr (gpointer bstr)
1113 #ifdef PLATFORM_WIN32
1114 SysFreeString ((BSTR)bstr);
1116 g_free (((char *)bstr) - 4);
1121 * mono_string_to_byvalstr:
1122 * @dst: Where to store the null-terminated utf8 decoded string.
1123 * @src: the MonoString to copy.
1124 * @size: the maximum number of bytes to copy.
1126 * Copies the MonoString pointed to by @src as a utf8 string
1127 * into @dst, it copies at most @size bytes into the destination.
1130 mono_string_to_byvalstr (gpointer dst, MonoString *src, int size)
1135 g_assert (dst != NULL);
1136 g_assert (size > 0);
1138 memset (dst, 0, size);
1142 s = mono_string_to_utf8 (src);
1143 len = MIN (size, strlen (s));
1146 memcpy (dst, s, len);
1151 * mono_string_to_byvalwstr:
1152 * @dst: Where to store the null-terminated utf16 decoded string.
1153 * @src: the MonoString to copy.
1154 * @size: the maximum number of bytes to copy.
1156 * Copies the MonoString pointed to by @src as a utf16 string into
1157 * @dst, it copies at most @size bytes into the destination (including
1158 * a terminating 16-bit zero terminator).
1161 mono_string_to_byvalwstr (gpointer dst, MonoString *src, int size)
1165 g_assert (dst != NULL);
1166 g_assert (size > 1);
1169 memset (dst, 0, size * 2);
1173 len = MIN (size, (mono_string_length (src)));
1174 memcpy (dst, mono_string_chars (src), size * 2);
1175 if (size <= mono_string_length (src))
1177 *((gunichar2 *) dst + len) = 0;
1181 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
1184 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
1185 mono_mb_emit_byte (mb, CEE_LDIND_I);
1186 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoVTable, klass));
1187 mono_mb_emit_byte (mb, CEE_ADD);
1188 mono_mb_emit_byte (mb, CEE_LDIND_I);
1189 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1190 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
1191 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
1192 pos = mono_mb_emit_branch (mb, branch_code);
1197 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
1200 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
1201 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1202 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
1203 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1204 mono_mb_emit_icon (mb, -1);
1205 pos = mono_mb_emit_branch (mb, branch_code);
1210 mono_mb_emit_cominterop_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethod* method)
1212 // get function pointer from 1st arg, the COM interface pointer
1213 mono_mb_emit_ldarg (mb, 0);
1214 mono_mb_emit_icon (mb, cominterop_get_com_slot_for_method (method));
1215 mono_mb_emit_icall (mb, cominterop_get_function_pointer);
1217 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1218 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
1219 mono_mb_emit_calli (mb, sig);
1220 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1221 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
1225 mono_mb_emit_exception_marshal_directive (MonoMethodBuilder *mb, const char *msg)
1227 mono_mb_emit_exception_full (mb, "System.Runtime.InteropServices", "MarshalDirectiveException", msg);
1231 mono_type_to_ldind (MonoType *type)
1237 switch (type->type) {
1239 return CEE_LDIND_I1;
1241 case MONO_TYPE_BOOLEAN:
1242 return CEE_LDIND_U1;
1244 return CEE_LDIND_I2;
1246 case MONO_TYPE_CHAR:
1247 return CEE_LDIND_U2;
1249 return CEE_LDIND_I4;
1251 return CEE_LDIND_U4;
1255 case MONO_TYPE_FNPTR:
1257 case MONO_TYPE_CLASS:
1258 case MONO_TYPE_STRING:
1259 case MONO_TYPE_OBJECT:
1260 case MONO_TYPE_SZARRAY:
1261 case MONO_TYPE_ARRAY:
1262 return CEE_LDIND_REF;
1265 return CEE_LDIND_I8;
1267 return CEE_LDIND_R4;
1269 return CEE_LDIND_R8;
1270 case MONO_TYPE_VALUETYPE:
1271 if (type->data.klass->enumtype) {
1272 type = type->data.klass->enum_basetype;
1276 case MONO_TYPE_TYPEDBYREF:
1278 case MONO_TYPE_GENERICINST:
1279 type = &type->data.generic_class->container_class->byval_arg;
1282 g_error ("unknown type 0x%02x in type_to_ldind", type->type);
1288 mono_type_to_stind (MonoType *type)
1294 switch (type->type) {
1297 case MONO_TYPE_BOOLEAN:
1298 return CEE_STIND_I1;
1301 case MONO_TYPE_CHAR:
1302 return CEE_STIND_I2;
1305 return CEE_STIND_I4;
1309 case MONO_TYPE_FNPTR:
1311 case MONO_TYPE_CLASS:
1312 case MONO_TYPE_STRING:
1313 case MONO_TYPE_OBJECT:
1314 case MONO_TYPE_SZARRAY:
1315 case MONO_TYPE_ARRAY:
1316 return CEE_STIND_REF;
1319 return CEE_STIND_I8;
1321 return CEE_STIND_R4;
1323 return CEE_STIND_R8;
1324 case MONO_TYPE_VALUETYPE:
1325 if (type->data.klass->enumtype) {
1326 type = type->data.klass->enum_basetype;
1330 case MONO_TYPE_TYPEDBYREF:
1332 case MONO_TYPE_GENERICINST:
1333 type = &type->data.generic_class->container_class->byval_arg;
1336 g_error ("unknown type 0x%02x in type_to_stind", type->type);
1342 emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1345 case MONO_MARSHAL_CONV_BOOL_I4:
1346 mono_mb_emit_ldloc (mb, 1);
1347 mono_mb_emit_ldloc (mb, 0);
1348 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1349 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1350 mono_mb_emit_byte (mb, 3);
1351 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1352 mono_mb_emit_byte (mb, CEE_BR_S);
1353 mono_mb_emit_byte (mb, 1);
1354 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1355 mono_mb_emit_byte (mb, CEE_STIND_I1);
1357 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1358 mono_mb_emit_ldloc (mb, 1);
1359 mono_mb_emit_ldloc (mb, 0);
1360 mono_mb_emit_byte (mb, CEE_LDIND_I2);
1361 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
1362 mono_mb_emit_byte (mb, 3);
1363 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1364 mono_mb_emit_byte (mb, CEE_BR_S);
1365 mono_mb_emit_byte (mb, 1);
1366 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1367 mono_mb_emit_byte (mb, CEE_STIND_I1);
1369 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1370 MonoClass *eklass = NULL;
1373 if (type->type == MONO_TYPE_SZARRAY) {
1374 eklass = type->data.klass;
1376 g_assert_not_reached ();
1379 esize = mono_class_native_size (eklass, NULL);
1381 /* create a new array */
1382 mono_mb_emit_ldloc (mb, 1);
1383 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1384 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
1385 mono_mb_emit_byte (mb, CEE_STIND_I);
1387 if (eklass->blittable) {
1388 /* copy the elements */
1389 mono_mb_emit_ldloc (mb, 1);
1390 mono_mb_emit_byte (mb, CEE_LDIND_I);
1391 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
1392 mono_mb_emit_byte (mb, CEE_ADD);
1393 mono_mb_emit_ldloc (mb, 0);
1394 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1395 mono_mb_emit_byte (mb, CEE_PREFIX1);
1396 mono_mb_emit_byte (mb, CEE_CPBLK);
1399 int array_var, src_var, dst_var, index_var;
1400 guint32 label2, label3;
1402 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1403 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1404 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1407 mono_mb_emit_ldloc (mb, 1);
1408 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1409 mono_mb_emit_stloc (mb, array_var);
1411 /* save the old src pointer */
1412 mono_mb_emit_ldloc (mb, 0);
1413 mono_mb_emit_stloc (mb, src_var);
1414 /* save the old dst pointer */
1415 mono_mb_emit_ldloc (mb, 1);
1416 mono_mb_emit_stloc (mb, dst_var);
1418 /* Emit marshalling loop */
1419 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1420 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1421 mono_mb_emit_stloc (mb, index_var);
1424 label2 = mono_mb_get_label (mb);
1425 mono_mb_emit_ldloc (mb, index_var);
1426 mono_mb_emit_ldloc (mb, array_var);
1427 mono_mb_emit_byte (mb, CEE_LDLEN);
1428 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1430 /* src is already set */
1433 mono_mb_emit_ldloc (mb, array_var);
1434 mono_mb_emit_ldloc (mb, index_var);
1435 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1436 mono_mb_emit_stloc (mb, 1);
1438 /* Do the conversion */
1439 emit_struct_conv (mb, eklass, TRUE);
1442 mono_mb_emit_add_to_local (mb, index_var, 1);
1444 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1446 mono_mb_patch_branch (mb, label3);
1448 /* restore the old src pointer */
1449 mono_mb_emit_ldloc (mb, src_var);
1450 mono_mb_emit_stloc (mb, 0);
1451 /* restore the old dst pointer */
1452 mono_mb_emit_ldloc (mb, dst_var);
1453 mono_mb_emit_stloc (mb, 1);
1457 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1458 MonoClass *eclass = mono_defaults.char_class;
1460 /* create a new array */
1461 mono_mb_emit_ldloc (mb, 1);
1462 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1463 mono_mb_emit_op (mb, CEE_NEWARR, eclass);
1464 mono_mb_emit_byte (mb, CEE_STIND_REF);
1466 mono_mb_emit_ldloc (mb, 1);
1467 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1468 mono_mb_emit_ldloc (mb, 0);
1469 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1470 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1471 mono_mb_emit_icall (mb, mono_byvalarray_to_array);
1474 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1475 mono_mb_emit_ldloc (mb, 1);
1476 mono_mb_emit_ldloc (mb, 0);
1477 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1478 mono_mb_emit_byte (mb, CEE_STIND_REF);
1480 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1481 mono_mb_emit_ldloc (mb, 1);
1482 mono_mb_emit_ldloc (mb, 0);
1483 mono_mb_emit_icall (mb, mono_string_from_utf16);
1484 mono_mb_emit_byte (mb, CEE_STIND_REF);
1486 case MONO_MARSHAL_CONV_STR_LPTSTR:
1487 mono_mb_emit_ldloc (mb, 1);
1488 mono_mb_emit_ldloc (mb, 0);
1489 mono_mb_emit_byte (mb, CEE_LDIND_I);
1490 #ifdef PLATFORM_WIN32
1491 mono_mb_emit_icall (mb, mono_string_from_utf16);
1493 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1495 mono_mb_emit_byte (mb, CEE_STIND_REF);
1497 case MONO_MARSHAL_CONV_STR_LPSTR:
1498 mono_mb_emit_ldloc (mb, 1);
1499 mono_mb_emit_ldloc (mb, 0);
1500 mono_mb_emit_byte (mb, CEE_LDIND_I);
1501 mono_mb_emit_icall (mb, mono_string_new_wrapper);
1502 mono_mb_emit_byte (mb, CEE_STIND_REF);
1504 case MONO_MARSHAL_CONV_STR_LPWSTR:
1505 mono_mb_emit_ldloc (mb, 1);
1506 mono_mb_emit_ldloc (mb, 0);
1507 mono_mb_emit_byte (mb, CEE_LDIND_I);
1508 mono_mb_emit_icall (mb, mono_string_from_utf16);
1509 mono_mb_emit_byte (mb, CEE_STIND_REF);
1511 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1512 MonoClass *klass = mono_class_from_mono_type (type);
1513 int src_var, dst_var;
1515 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1516 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1518 /* *dst = new object */
1519 mono_mb_emit_ldloc (mb, 1);
1520 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1521 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
1522 mono_mb_emit_byte (mb, CEE_STIND_REF);
1524 /* save the old src pointer */
1525 mono_mb_emit_ldloc (mb, 0);
1526 mono_mb_emit_stloc (mb, src_var);
1527 /* save the old dst pointer */
1528 mono_mb_emit_ldloc (mb, 1);
1529 mono_mb_emit_stloc (mb, dst_var);
1531 /* dst = pointer to newly created object data */
1532 mono_mb_emit_ldloc (mb, 1);
1533 mono_mb_emit_byte (mb, CEE_LDIND_I);
1534 mono_mb_emit_icon (mb, sizeof (MonoObject));
1535 mono_mb_emit_byte (mb, CEE_ADD);
1536 mono_mb_emit_stloc (mb, 1);
1538 emit_struct_conv (mb, klass, TRUE);
1540 /* restore the old src pointer */
1541 mono_mb_emit_ldloc (mb, src_var);
1542 mono_mb_emit_stloc (mb, 0);
1543 /* restore the old dst pointer */
1544 mono_mb_emit_ldloc (mb, dst_var);
1545 mono_mb_emit_stloc (mb, 1);
1548 case MONO_MARSHAL_CONV_DEL_FTN: {
1549 MonoClass *klass = mono_class_from_mono_type (type);
1551 mono_mb_emit_ldloc (mb, 1);
1552 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1553 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
1554 mono_mb_emit_ldloc (mb, 0);
1555 mono_mb_emit_byte (mb, CEE_LDIND_I);
1556 mono_mb_emit_icall (mb, mono_ftnptr_to_delegate);
1557 mono_mb_emit_byte (mb, CEE_STIND_REF);
1560 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1561 g_error ("Structure field of type %s can't be marshalled as LPArray", mono_class_from_mono_type (type)->name);
1563 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1564 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
1565 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH: {
1566 static MonoClass* com_interop_proxy_class = NULL;
1567 static MonoMethod* com_interop_proxy_get_proxy = NULL;
1568 static MonoMethod* get_transparent_proxy = NULL;
1570 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
1571 MonoClass *klass = NULL;
1573 /* COM types are initialized lazily */
1574 mono_init_com_types ();
1576 klass = mono_class_from_mono_type (type);
1578 mono_mb_emit_ldloc (mb, 1);
1579 mono_mb_emit_byte (mb, CEE_LDNULL);
1580 mono_mb_emit_byte (mb, CEE_STIND_REF);
1582 mono_mb_emit_ldloc (mb, 0);
1583 mono_mb_emit_byte (mb, CEE_LDIND_I);
1584 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1586 /* load dst to store later */
1587 mono_mb_emit_ldloc (mb, 1);
1589 mono_mb_emit_ldloc (mb, 0);
1590 mono_mb_emit_byte (mb, CEE_LDIND_I);
1591 mono_mb_emit_icon (mb, TRUE);
1592 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1593 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
1595 if (!com_interop_proxy_class)
1596 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
1597 if (!com_interop_proxy_get_proxy)
1598 com_interop_proxy_get_proxy = mono_class_get_method_from_name_flags (com_interop_proxy_class, "GetProxy", 2, METHOD_ATTRIBUTE_PRIVATE);
1599 if (!get_transparent_proxy)
1600 get_transparent_proxy = mono_class_get_method_from_name (mono_defaults.real_proxy_class, "GetTransparentProxy", 0);
1602 real_proxy = mono_mb_add_local (mb, &com_interop_proxy_class->byval_arg);
1604 mono_mb_emit_ldloc (mb, 0);
1605 mono_mb_emit_byte (mb, CEE_LDIND_I);
1606 mono_mb_emit_ptr (mb, &mono_defaults.com_object_class->byval_arg);
1607 mono_mb_emit_icall (mb, type_from_handle);
1608 mono_mb_emit_managed_call (mb, com_interop_proxy_get_proxy, NULL);
1609 mono_mb_emit_managed_call (mb, get_transparent_proxy, NULL);
1610 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
1612 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1614 mono_mb_emit_byte (mb, CEE_STIND_REF);
1615 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
1617 /* is already managed object */
1618 mono_mb_patch_short_branch (mb, pos_ccw);
1619 mono_mb_emit_ldloc (mb, 0);
1620 mono_mb_emit_byte (mb, CEE_LDIND_I);
1621 mono_mb_emit_icon (mb, TRUE);
1622 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1624 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
1626 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1628 mono_mb_emit_byte (mb, CEE_STIND_REF);
1630 mono_mb_patch_short_branch (mb, pos_end);
1632 mono_mb_patch_short_branch (mb, pos_null);
1636 case MONO_MARSHAL_CONV_SAFEHANDLE: {
1638 * Passing SafeHandles as ref does not allow the unmanaged code
1639 * to change the SafeHandle value. If the value is changed,
1640 * we should issue a diagnostic exception (NotSupportedException)
1641 * that informs the user that changes to handles in unmanaged code
1644 * Since we currently have no access to the original
1645 * SafeHandle that was used during the marshalling,
1646 * for now we just ignore this, and ignore/discard any
1647 * changes that might have happened to the handle.
1652 case MONO_MARSHAL_CONV_HANDLEREF: {
1654 * Passing HandleRefs in a struct that is ref()ed does not
1655 * copy the values back to the HandleRef
1660 case MONO_MARSHAL_CONV_STR_BSTR:
1661 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1662 case MONO_MARSHAL_CONV_STR_TBSTR:
1663 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1665 g_warning ("marshaling conversion %d not implemented", conv);
1666 g_assert_not_reached ();
1671 conv_to_icall (MonoMarshalConv conv)
1674 case MONO_MARSHAL_CONV_STR_LPWSTR:
1675 return mono_marshal_string_to_utf16;
1676 case MONO_MARSHAL_CONV_LPWSTR_STR:
1677 return mono_string_from_utf16;
1678 case MONO_MARSHAL_CONV_LPSTR_STR:
1679 return mono_string_new_wrapper;
1680 case MONO_MARSHAL_CONV_STR_LPTSTR:
1681 #ifdef PLATFORM_WIN32
1682 return mono_marshal_string_to_utf16;
1684 return mono_string_to_lpstr;
1686 case MONO_MARSHAL_CONV_STR_LPSTR:
1687 return mono_string_to_lpstr;
1688 case MONO_MARSHAL_CONV_STR_BSTR:
1689 return mono_string_to_bstr;
1690 case MONO_MARSHAL_CONV_BSTR_STR:
1691 return mono_string_from_bstr;
1692 case MONO_MARSHAL_CONV_STR_TBSTR:
1693 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1694 return mono_string_to_ansibstr;
1695 case MONO_MARSHAL_CONV_SB_LPSTR:
1696 return mono_string_builder_to_utf8;
1697 case MONO_MARSHAL_CONV_SB_LPTSTR:
1698 #ifdef PLATFORM_WIN32
1699 return mono_string_builder_to_utf16;
1701 return mono_string_builder_to_utf8;
1703 case MONO_MARSHAL_CONV_SB_LPWSTR:
1704 return mono_string_builder_to_utf16;
1705 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1706 return mono_array_to_savearray;
1707 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1708 return mono_array_to_lparray;
1709 case MONO_MARSHAL_CONV_DEL_FTN:
1710 return mono_delegate_to_ftnptr;
1711 case MONO_MARSHAL_CONV_FTN_DEL:
1712 return mono_ftnptr_to_delegate;
1713 case MONO_MARSHAL_CONV_LPSTR_SB:
1714 return mono_string_utf8_to_builder;
1715 case MONO_MARSHAL_CONV_LPTSTR_SB:
1716 #ifdef PLATFORM_WIN32
1717 return mono_string_utf16_to_builder;
1719 return mono_string_utf8_to_builder;
1721 case MONO_MARSHAL_CONV_LPWSTR_SB:
1722 return mono_string_utf16_to_builder;
1723 case MONO_MARSHAL_FREE_ARRAY:
1724 return mono_marshal_free_array;
1725 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1726 return mono_string_to_byvalstr;
1727 case MONO_MARSHAL_CONV_STR_BYVALWSTR:
1728 return mono_string_to_byvalwstr;
1730 g_assert_not_reached ();
1737 emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
1742 case MONO_MARSHAL_CONV_BOOL_I4:
1743 mono_mb_emit_ldloc (mb, 1);
1744 mono_mb_emit_ldloc (mb, 0);
1745 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1746 mono_mb_emit_byte (mb, CEE_STIND_I4);
1748 case MONO_MARSHAL_CONV_BOOL_VARIANTBOOL:
1749 mono_mb_emit_ldloc (mb, 1);
1750 mono_mb_emit_ldloc (mb, 0);
1751 mono_mb_emit_byte (mb, CEE_LDIND_U1);
1752 mono_mb_emit_byte (mb, CEE_NEG);
1753 mono_mb_emit_byte (mb, CEE_STIND_I2);
1755 case MONO_MARSHAL_CONV_STR_LPWSTR:
1756 case MONO_MARSHAL_CONV_STR_LPSTR:
1757 case MONO_MARSHAL_CONV_STR_LPTSTR:
1758 case MONO_MARSHAL_CONV_STR_BSTR:
1759 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
1760 case MONO_MARSHAL_CONV_STR_TBSTR: {
1763 /* free space if free == true */
1764 mono_mb_emit_ldloc (mb, 2);
1765 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1766 mono_mb_emit_ldloc (mb, 1);
1767 mono_mb_emit_byte (mb, CEE_LDIND_I);
1768 mono_mb_emit_icall (mb, g_free);
1769 mono_mb_patch_short_branch (mb, pos);
1771 mono_mb_emit_ldloc (mb, 1);
1772 mono_mb_emit_ldloc (mb, 0);
1773 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1774 mono_mb_emit_icall (mb, conv_to_icall (conv));
1775 mono_mb_emit_byte (mb, CEE_STIND_I);
1778 case MONO_MARSHAL_CONV_ARRAY_SAVEARRAY:
1779 case MONO_MARSHAL_CONV_ARRAY_LPARRAY:
1780 case MONO_MARSHAL_CONV_DEL_FTN:
1781 mono_mb_emit_ldloc (mb, 1);
1782 mono_mb_emit_ldloc (mb, 0);
1783 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1784 mono_mb_emit_icall (mb, conv_to_icall (conv));
1785 mono_mb_emit_byte (mb, CEE_STIND_I);
1787 case MONO_MARSHAL_CONV_STR_BYVALSTR:
1788 case MONO_MARSHAL_CONV_STR_BYVALWSTR: {
1791 mono_mb_emit_ldloc (mb, 1); /* dst */
1792 mono_mb_emit_ldloc (mb, 0);
1793 mono_mb_emit_byte (mb, CEE_LDIND_REF); /* src String */
1794 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1795 mono_mb_emit_icall (mb, conv_to_icall (conv));
1798 case MONO_MARSHAL_CONV_ARRAY_BYVALARRAY: {
1799 MonoClass *eklass = NULL;
1802 if (type->type == MONO_TYPE_SZARRAY) {
1803 eklass = type->data.klass;
1805 g_assert_not_reached ();
1808 if (eklass->valuetype)
1809 esize = mono_class_native_size (eklass, NULL);
1811 esize = sizeof (gpointer);
1813 mono_mb_emit_ldloc (mb, 0);
1814 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1815 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1817 if (eklass->blittable) {
1818 mono_mb_emit_ldloc (mb, 1);
1819 mono_mb_emit_ldloc (mb, 0);
1820 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1821 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
1822 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem * esize);
1823 mono_mb_emit_byte (mb, CEE_PREFIX1);
1824 mono_mb_emit_byte (mb, CEE_CPBLK);
1826 int array_var, src_var, dst_var, index_var;
1827 guint32 label2, label3;
1829 array_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1830 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1831 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1834 mono_mb_emit_ldloc (mb, 0);
1835 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1836 mono_mb_emit_stloc (mb, array_var);
1838 /* save the old src pointer */
1839 mono_mb_emit_ldloc (mb, 0);
1840 mono_mb_emit_stloc (mb, src_var);
1841 /* save the old dst pointer */
1842 mono_mb_emit_ldloc (mb, 1);
1843 mono_mb_emit_stloc (mb, dst_var);
1845 /* Emit marshalling loop */
1846 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1847 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1848 mono_mb_emit_stloc (mb, index_var);
1851 label2 = mono_mb_get_label (mb);
1852 mono_mb_emit_ldloc (mb, index_var);
1853 mono_mb_emit_ldloc (mb, array_var);
1854 mono_mb_emit_byte (mb, CEE_LDLEN);
1855 label3 = mono_mb_emit_branch (mb, CEE_BGE);
1858 mono_mb_emit_ldloc (mb, array_var);
1859 mono_mb_emit_ldloc (mb, index_var);
1860 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
1861 mono_mb_emit_stloc (mb, 0);
1863 /* dst is already set */
1865 /* Do the conversion */
1866 emit_struct_conv (mb, eklass, FALSE);
1869 mono_mb_emit_add_to_local (mb, index_var, 1);
1871 mono_mb_emit_branch_label (mb, CEE_BR, label2);
1873 mono_mb_patch_branch (mb, label3);
1875 /* restore the old src pointer */
1876 mono_mb_emit_ldloc (mb, src_var);
1877 mono_mb_emit_stloc (mb, 0);
1878 /* restore the old dst pointer */
1879 mono_mb_emit_ldloc (mb, dst_var);
1880 mono_mb_emit_stloc (mb, 1);
1883 mono_mb_patch_branch (mb, pos);
1886 case MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY: {
1887 mono_mb_emit_ldloc (mb, 0);
1888 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1889 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1891 mono_mb_emit_ldloc (mb, 1);
1892 mono_mb_emit_ldloc (mb, 0);
1893 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1894 mono_mb_emit_ptr (mb, mono_defaults.byte_class);
1895 mono_mb_emit_icon (mb, mspec->data.array_data.num_elem);
1896 mono_mb_emit_icall (mb, mono_array_to_byvalarray);
1897 mono_mb_patch_short_branch (mb, pos);
1900 case MONO_MARSHAL_CONV_OBJECT_STRUCT: {
1901 int src_var, dst_var;
1903 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1904 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1906 mono_mb_emit_ldloc (mb, 0);
1907 mono_mb_emit_byte (mb, CEE_LDIND_I);
1908 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
1910 /* save the old src pointer */
1911 mono_mb_emit_ldloc (mb, 0);
1912 mono_mb_emit_stloc (mb, src_var);
1913 /* save the old dst pointer */
1914 mono_mb_emit_ldloc (mb, 1);
1915 mono_mb_emit_stloc (mb, dst_var);
1917 /* src = pointer to object data */
1918 mono_mb_emit_ldloc (mb, 0);
1919 mono_mb_emit_byte (mb, CEE_LDIND_I);
1920 mono_mb_emit_icon (mb, sizeof (MonoObject));
1921 mono_mb_emit_byte (mb, CEE_ADD);
1922 mono_mb_emit_stloc (mb, 0);
1924 emit_struct_conv (mb, mono_class_from_mono_type (type), FALSE);
1926 /* restore the old src pointer */
1927 mono_mb_emit_ldloc (mb, src_var);
1928 mono_mb_emit_stloc (mb, 0);
1929 /* restore the old dst pointer */
1930 mono_mb_emit_ldloc (mb, dst_var);
1931 mono_mb_emit_stloc (mb, 1);
1933 mono_mb_patch_branch (mb, pos);
1936 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
1937 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
1938 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN: {
1939 guint32 pos_null = 0, pos_rcw = 0, pos_end = 0;
1941 /* COM types are initialized lazily */
1942 mono_init_com_types ();
1945 mono_mb_emit_ldloc (mb, 1);
1946 mono_mb_emit_icon (mb, 0);
1947 mono_mb_emit_byte (mb, CEE_CONV_U);
1948 mono_mb_emit_byte (mb, CEE_STIND_I);
1950 mono_mb_emit_ldloc (mb, 0);
1951 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1953 // if null just break, dst was already inited to 0
1954 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1956 mono_mb_emit_ldloc (mb, 0);
1957 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1958 mono_mb_emit_icall (mb, cominterop_object_is_rcw);
1959 pos_rcw = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1961 // load dst to store later
1962 mono_mb_emit_ldloc (mb, 1);
1965 mono_mb_emit_ldloc (mb, 0);
1966 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1967 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
1968 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1970 /* load the RCW from the ComInteropProxy*/
1971 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
1972 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1974 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
1975 mono_mb_emit_ptr (mb, mono_type_get_class (type));
1976 mono_mb_emit_icon (mb, TRUE);
1977 mono_mb_emit_icall (mb, cominterop_get_interface);
1980 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN) {
1981 static MonoProperty* iunknown = NULL;
1984 iunknown = mono_class_get_property_from_name (mono_defaults.com_object_class, "IUnknown");
1985 mono_mb_emit_managed_call (mb, iunknown->get, NULL);
1987 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH) {
1988 static MonoProperty* idispatch = NULL;
1991 idispatch = mono_class_get_property_from_name (mono_defaults.com_object_class, "IDispatch");
1992 mono_mb_emit_managed_call (mb, idispatch->get, NULL);
1995 g_assert_not_reached ();
1997 mono_mb_emit_byte (mb, CEE_STIND_I);
1998 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
2001 mono_mb_patch_short_branch (mb, pos_rcw);
2002 /* load dst to store later */
2003 mono_mb_emit_ldloc (mb, 1);
2005 mono_mb_emit_ldloc (mb, 0);
2006 mono_mb_emit_byte (mb, CEE_LDIND_REF);
2008 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE)
2009 mono_mb_emit_ptr (mb, mono_type_get_class (type));
2010 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN)
2011 mono_mb_emit_ptr (mb, mono_defaults.iunknown_class);
2012 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH)
2013 mono_mb_emit_ptr (mb, mono_defaults.idispatch_class);
2015 g_assert_not_reached ();
2016 mono_mb_emit_icall (mb, cominterop_get_ccw);
2017 mono_mb_emit_byte (mb, CEE_STIND_I);
2019 mono_mb_patch_short_branch (mb, pos_end);
2020 mono_mb_patch_short_branch (mb, pos_null);
2024 case MONO_MARSHAL_CONV_SAFEHANDLE: {
2025 int dar_release_slot, pos;
2027 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
2030 * The following is ifdefed-out, because I have no way of doing the
2031 * DangerousRelease when destroying the structure
2034 /* set release = false */
2035 mono_mb_emit_icon (mb, 0);
2036 mono_mb_emit_stloc (mb, dar_release_slot);
2037 if (!sh_dangerous_add_ref)
2038 init_safe_handle ();
2040 /* safehandle.DangerousAddRef (ref release) */
2041 mono_mb_emit_ldloc (mb, 0); /* the source */
2042 mono_mb_emit_byte (mb, CEE_LDIND_I);
2043 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
2044 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
2046 mono_mb_emit_ldloc (mb, 0);
2047 mono_mb_emit_byte (mb, CEE_LDIND_I);
2048 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
2049 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
2050 mono_mb_patch_branch (mb, pos);
2052 /* Pull the handle field from SafeHandle */
2053 mono_mb_emit_ldloc (mb, 1);
2054 mono_mb_emit_ldloc (mb, 0);
2055 mono_mb_emit_byte (mb, CEE_LDIND_I);
2056 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
2057 mono_mb_emit_byte (mb, CEE_LDIND_I);
2058 mono_mb_emit_byte (mb, CEE_STIND_I);
2062 case MONO_MARSHAL_CONV_HANDLEREF: {
2063 mono_mb_emit_ldloc (mb, 1);
2064 mono_mb_emit_ldloc (mb, 0);
2065 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
2066 mono_mb_emit_byte (mb, CEE_ADD);
2067 mono_mb_emit_byte (mb, CEE_LDIND_I);
2068 mono_mb_emit_byte (mb, CEE_STIND_I);
2073 char *msg = g_strdup_printf ("marshalling conversion %d not implemented", conv);
2074 MonoException *exc = mono_get_exception_not_implemented (msg);
2077 mono_raise_exception (exc);
2083 emit_struct_conv (MonoMethodBuilder *mb, MonoClass *klass, gboolean to_object)
2085 MonoMarshalType *info;
2089 emit_struct_conv(mb, klass->parent, to_object);
2091 info = mono_marshal_load_type_info (klass);
2093 if (info->native_size == 0)
2096 if (klass->blittable) {
2097 int msize = mono_class_value_size (klass, NULL);
2098 g_assert (msize == info->native_size);
2099 mono_mb_emit_ldloc (mb, 1);
2100 mono_mb_emit_ldloc (mb, 0);
2101 mono_mb_emit_icon (mb, msize);
2102 mono_mb_emit_byte (mb, CEE_PREFIX1);
2103 mono_mb_emit_byte (mb, CEE_CPBLK);
2105 mono_mb_emit_add_to_local (mb, 0, msize);
2106 mono_mb_emit_add_to_local (mb, 1, msize);
2110 for (i = 0; i < info->num_fields; i++) {
2111 MonoMarshalNative ntype;
2112 MonoMarshalConv conv;
2113 MonoType *ftype = info->fields [i].field->type;
2116 gboolean last_field = i < (info->num_fields -1) ? 0 : 1;
2118 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
2121 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE, klass->unicode, &conv);
2124 msize = klass->instance_size - info->fields [i].field->offset;
2125 usize = info->native_size - info->fields [i].offset;
2127 msize = info->fields [i + 1].field->offset - info->fields [i].field->offset;
2128 usize = info->fields [i + 1].offset - info->fields [i].offset;
2131 if (klass != mono_defaults.safehandle_class){
2133 * FIXME: Should really check for usize==0 and msize>0, but we apply
2134 * the layout to the managed structure as well.
2137 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) && (usize == 0)) {
2138 if (MONO_TYPE_IS_REFERENCE (info->fields [i].field->type) ||
2139 ((!last_field && MONO_TYPE_IS_REFERENCE (info->fields [i + 1].field->type))))
2140 g_error ("Type %s which has an [ExplicitLayout] attribute cannot have a "
2141 "reference field at the same offset as another field.",
2142 mono_type_full_name (&klass->byval_arg));
2145 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
2146 g_error ("Type %s which is passed to unmanaged code must have a StructLayout attribute",
2147 mono_type_full_name (&klass->byval_arg));
2152 case MONO_MARSHAL_CONV_NONE: {
2155 if (ftype->byref || ftype->type == MONO_TYPE_I ||
2156 ftype->type == MONO_TYPE_U) {
2157 mono_mb_emit_ldloc (mb, 1);
2158 mono_mb_emit_ldloc (mb, 0);
2159 mono_mb_emit_byte (mb, CEE_LDIND_I);
2160 mono_mb_emit_byte (mb, CEE_STIND_I);
2171 case MONO_TYPE_BOOLEAN:
2174 case MONO_TYPE_CHAR:
2180 mono_mb_emit_ldloc (mb, 1);
2181 mono_mb_emit_ldloc (mb, 0);
2182 mono_mb_emit_byte (mb, mono_type_to_ldind (ftype));
2183 mono_mb_emit_byte (mb, mono_type_to_stind (ftype));
2185 case MONO_TYPE_VALUETYPE: {
2186 int src_var, dst_var;
2188 if (ftype->data.klass->enumtype) {
2189 ftype = ftype->data.klass->enum_basetype;
2193 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2194 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2196 /* save the old src pointer */
2197 mono_mb_emit_ldloc (mb, 0);
2198 mono_mb_emit_stloc (mb, src_var);
2199 /* save the old dst pointer */
2200 mono_mb_emit_ldloc (mb, 1);
2201 mono_mb_emit_stloc (mb, dst_var);
2203 emit_struct_conv (mb, ftype->data.klass, to_object);
2205 /* restore the old src pointer */
2206 mono_mb_emit_ldloc (mb, src_var);
2207 mono_mb_emit_stloc (mb, 0);
2208 /* restore the old dst pointer */
2209 mono_mb_emit_ldloc (mb, dst_var);
2210 mono_mb_emit_stloc (mb, 1);
2213 case MONO_TYPE_OBJECT: {
2214 mono_init_com_types ();
2216 static MonoMethod *variant_clear = NULL;
2217 static MonoMethod *get_object_for_native_variant = NULL;
2220 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
2221 if (!get_object_for_native_variant)
2222 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2223 mono_mb_emit_ldloc (mb, 1);
2224 mono_mb_emit_ldloc (mb, 0);
2225 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2226 mono_mb_emit_byte (mb, CEE_STIND_REF);
2228 mono_mb_emit_ldloc (mb, 0);
2229 mono_mb_emit_managed_call (mb, variant_clear, NULL);
2232 static MonoMethod *get_native_variant_for_object = NULL;
2234 if (!get_native_variant_for_object)
2235 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
2237 mono_mb_emit_ldloc (mb, 0);
2238 mono_mb_emit_byte(mb, CEE_LDIND_REF);
2239 mono_mb_emit_ldloc (mb, 1);
2240 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
2246 g_warning ("marshaling type %02x not implemented", ftype->type);
2247 g_assert_not_reached ();
2252 int src_var, dst_var;
2254 src_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2255 dst_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2257 /* save the old src pointer */
2258 mono_mb_emit_ldloc (mb, 0);
2259 mono_mb_emit_stloc (mb, src_var);
2260 /* save the old dst pointer */
2261 mono_mb_emit_ldloc (mb, 1);
2262 mono_mb_emit_stloc (mb, dst_var);
2265 emit_ptr_to_object_conv (mb, ftype, conv, info->fields [i].mspec);
2267 emit_object_to_ptr_conv (mb, ftype, conv, info->fields [i].mspec);
2269 /* restore the old src pointer */
2270 mono_mb_emit_ldloc (mb, src_var);
2271 mono_mb_emit_stloc (mb, 0);
2272 /* restore the old dst pointer */
2273 mono_mb_emit_ldloc (mb, dst_var);
2274 mono_mb_emit_stloc (mb, 1);
2279 mono_mb_emit_add_to_local (mb, 0, usize);
2280 mono_mb_emit_add_to_local (mb, 1, msize);
2282 mono_mb_emit_add_to_local (mb, 0, msize);
2283 mono_mb_emit_add_to_local (mb, 1, usize);
2289 emit_struct_free (MonoMethodBuilder *mb, MonoClass *klass, int struct_var)
2291 /* Call DestroyStructure */
2292 /* FIXME: Only do this if needed */
2293 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2294 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
2295 mono_mb_emit_ldloc (mb, struct_var);
2296 mono_mb_emit_icall (mb, mono_struct_delete_old);
2300 emit_thread_interrupt_checkpoint_call (MonoMethodBuilder *mb, gpointer checkpoint_func)
2304 mono_mb_emit_ptr (mb, (gpointer) mono_thread_interruption_request_flag ());
2305 mono_mb_emit_byte (mb, CEE_LDIND_U4);
2306 pos_noabort = mono_mb_emit_branch (mb, CEE_BRFALSE);
2308 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
2309 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
2311 mono_mb_emit_icall (mb, checkpoint_func);
2313 mono_mb_patch_branch (mb, pos_noabort);
2317 emit_thread_interrupt_checkpoint (MonoMethodBuilder *mb)
2319 if (strstr (mb->name, "mono_thread_interruption_checkpoint"))
2322 emit_thread_interrupt_checkpoint_call (mb, mono_thread_interruption_checkpoint);
2326 emit_thread_force_interrupt_checkpoint (MonoMethodBuilder *mb)
2328 emit_thread_interrupt_checkpoint_call (mb, mono_thread_force_interruption_checkpoint);
2331 static MonoAsyncResult *
2332 mono_delegate_begin_invoke (MonoDelegate *delegate, gpointer *params)
2334 MonoMethodMessage *msg;
2335 MonoDelegate *async_callback;
2339 MonoMethod *method = NULL, *method2 = NULL;
2341 g_assert (delegate);
2343 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2345 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2346 if (!tp->remote_class->proxy_class->contextbound || tp->rp->context != (MonoObject *) mono_context_get ()) {
2348 /* If the target is a proxy, make a direct call. Is proxy's work
2349 // to make the call asynchronous.
2351 MonoAsyncResult *ares;
2353 MonoArray *out_args;
2355 method = delegate->method;
2357 msg = mono_method_call_message_new (mono_marshal_method_from_wrapper (method), params, NULL, &async_callback, &state);
2358 handle = CreateEvent (NULL, TRUE, FALSE, NULL);
2359 g_assert(handle != NULL);
2360 ares = mono_async_result_new (mono_domain_get (), handle, state, handle, NULL);
2361 MONO_OBJECT_SETREF (ares, async_delegate, (MonoObject *)delegate);
2362 MONO_OBJECT_SETREF (ares, async_callback, (MonoObject *)async_callback);
2363 MONO_OBJECT_SETREF (msg, async_result, ares);
2364 msg->call_type = CallType_BeginInvoke;
2366 mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2371 klass = delegate->object.vtable->klass;
2373 method = mono_get_delegate_invoke (klass);
2374 method2 = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
2377 g_assert (method != NULL);
2379 im = mono_get_delegate_invoke (method->klass);
2380 msg = mono_method_call_message_new (method, params, im, &async_callback, &state);
2382 return mono_thread_pool_add ((MonoObject *)delegate, msg, async_callback, state);
2386 mono_mb_emit_save_args (MonoMethodBuilder *mb, MonoMethodSignature *sig, gboolean save_this)
2388 int i, params_var, tmp_var;
2390 /* allocate local (pointer) *params[] */
2391 params_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2392 /* allocate local (pointer) tmp */
2393 tmp_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2395 /* alloate space on stack to store an array of pointers to the arguments */
2396 mono_mb_emit_icon (mb, sizeof (gpointer) * (sig->param_count + 1));
2397 mono_mb_emit_byte (mb, CEE_PREFIX1);
2398 mono_mb_emit_byte (mb, CEE_LOCALLOC);
2399 mono_mb_emit_stloc (mb, params_var);
2402 mono_mb_emit_ldloc (mb, params_var);
2403 mono_mb_emit_stloc (mb, tmp_var);
2405 if (save_this && sig->hasthis) {
2406 mono_mb_emit_ldloc (mb, tmp_var);
2407 mono_mb_emit_ldarg_addr (mb, 0);
2408 mono_mb_emit_byte (mb, CEE_STIND_I);
2409 /* tmp = tmp + sizeof (gpointer) */
2410 if (sig->param_count)
2411 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2415 for (i = 0; i < sig->param_count; i++) {
2416 mono_mb_emit_ldloc (mb, tmp_var);
2417 mono_mb_emit_ldarg_addr (mb, i + sig->hasthis);
2418 mono_mb_emit_byte (mb, CEE_STIND_I);
2419 /* tmp = tmp + sizeof (gpointer) */
2420 if (i < (sig->param_count - 1))
2421 mono_mb_emit_add_to_local (mb, tmp_var, sizeof (gpointer));
2428 mono_signature_to_name (MonoMethodSignature *sig, const char *prefix)
2432 GString *res = g_string_new ("");
2435 g_string_append (res, prefix);
2436 g_string_append_c (res, '_');
2439 mono_type_get_desc (res, sig->ret, FALSE);
2441 for (i = 0; i < sig->param_count; ++i) {
2442 g_string_append_c (res, '_');
2443 mono_type_get_desc (res, sig->params [i], FALSE);
2446 g_string_free (res, FALSE);
2451 * mono_marshal_get_string_encoding:
2453 * Return the string encoding which should be used for a given parameter.
2455 static MonoMarshalNative
2456 mono_marshal_get_string_encoding (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2458 /* First try the parameter marshal info */
2460 if (spec->native == MONO_NATIVE_LPARRAY) {
2461 if ((spec->data.array_data.elem_type != 0) && (spec->data.array_data.elem_type != MONO_NATIVE_MAX))
2462 return spec->data.array_data.elem_type;
2465 return spec->native;
2469 return MONO_NATIVE_LPSTR;
2471 /* Then try the method level marshal info */
2472 switch (piinfo->piflags & PINVOKE_ATTRIBUTE_CHAR_SET_MASK) {
2473 case PINVOKE_ATTRIBUTE_CHAR_SET_ANSI:
2474 return MONO_NATIVE_LPSTR;
2475 case PINVOKE_ATTRIBUTE_CHAR_SET_UNICODE:
2476 return MONO_NATIVE_LPWSTR;
2477 case PINVOKE_ATTRIBUTE_CHAR_SET_AUTO:
2478 #ifdef PLATFORM_WIN32
2479 return MONO_NATIVE_LPWSTR;
2481 return MONO_NATIVE_LPSTR;
2484 return MONO_NATIVE_LPSTR;
2488 static MonoMarshalConv
2489 mono_marshal_get_string_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2491 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2494 case MONO_NATIVE_LPWSTR:
2495 return MONO_MARSHAL_CONV_STR_LPWSTR;
2496 case MONO_NATIVE_LPSTR:
2497 return MONO_MARSHAL_CONV_STR_LPSTR;
2498 case MONO_NATIVE_LPTSTR:
2499 return MONO_MARSHAL_CONV_STR_LPTSTR;
2500 case MONO_NATIVE_BSTR:
2501 return MONO_MARSHAL_CONV_STR_BSTR;
2507 static MonoMarshalConv
2508 mono_marshal_get_stringbuilder_to_ptr_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2510 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2513 case MONO_NATIVE_LPWSTR:
2514 return MONO_MARSHAL_CONV_SB_LPWSTR;
2516 case MONO_NATIVE_LPSTR:
2517 return MONO_MARSHAL_CONV_SB_LPSTR;
2519 case MONO_NATIVE_LPTSTR:
2520 return MONO_MARSHAL_CONV_SB_LPTSTR;
2527 static MonoMarshalConv
2528 mono_marshal_get_ptr_to_string_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2530 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2535 case MONO_NATIVE_LPWSTR:
2536 return MONO_MARSHAL_CONV_LPWSTR_STR;
2537 case MONO_NATIVE_LPSTR:
2538 return MONO_MARSHAL_CONV_LPSTR_STR;
2539 case MONO_NATIVE_LPTSTR:
2540 return MONO_MARSHAL_CONV_LPTSTR_STR;
2541 case MONO_NATIVE_BSTR:
2542 return MONO_MARSHAL_CONV_BSTR_STR;
2548 static MonoMarshalConv
2549 mono_marshal_get_ptr_to_stringbuilder_conv (MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec, gboolean *need_free)
2551 MonoMarshalNative encoding = mono_marshal_get_string_encoding (piinfo, spec);
2556 case MONO_NATIVE_LPWSTR:
2558 * mono_string_builder_to_utf16 does not allocate a
2559 * new buffer, so no need to free it.
2562 return MONO_MARSHAL_CONV_LPWSTR_SB;
2563 case MONO_NATIVE_LPSTR:
2564 return MONO_MARSHAL_CONV_LPSTR_SB;
2566 case MONO_NATIVE_LPTSTR:
2567 return MONO_MARSHAL_CONV_LPTSTR_SB;
2575 * Return whenever a field of a native structure or an array member needs to
2579 mono_marshal_need_free (MonoType *t, MonoMethodPInvoke *piinfo, MonoMarshalSpec *spec)
2581 MonoMarshalNative encoding;
2582 MonoMarshalConv conv;
2585 case MONO_TYPE_VALUETYPE:
2586 /* FIXME: Optimize this */
2588 case MONO_TYPE_OBJECT:
2589 case MONO_TYPE_CLASS:
2590 if (t->data.klass == mono_defaults.stringbuilder_class) {
2592 conv = mono_marshal_get_ptr_to_stringbuilder_conv (piinfo, spec, &need_free);
2596 case MONO_TYPE_STRING:
2597 encoding = mono_marshal_get_string_encoding (piinfo, spec);
2598 return (encoding == MONO_NATIVE_LPWSTR) ? FALSE : TRUE;
2604 static inline MonoMethod*
2605 mono_marshal_find_in_cache (GHashTable *cache, gpointer key)
2609 mono_marshal_lock ();
2610 res = g_hash_table_lookup (cache, key);
2611 mono_marshal_unlock ();
2615 /* Create the method from the builder and place it in the cache */
2616 static inline MonoMethod*
2617 mono_mb_create_and_cache (GHashTable *cache, gpointer key,
2618 MonoMethodBuilder *mb, MonoMethodSignature *sig,
2623 mono_marshal_lock ();
2624 res = g_hash_table_lookup (cache, key);
2625 mono_marshal_unlock ();
2628 newm = mono_mb_create_method (mb, sig, max_stack);
2629 mono_marshal_lock ();
2630 res = g_hash_table_lookup (cache, key);
2633 g_hash_table_insert (cache, key, res);
2634 g_hash_table_insert (wrapper_hash, res, key);
2635 mono_marshal_unlock ();
2637 mono_marshal_unlock ();
2638 mono_free_method (newm);
2646 static inline MonoMethod*
2647 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
2649 MonoMethod *res = NULL;
2650 MonoRemotingMethods *wrps;
2652 mono_marshal_lock ();
2653 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
2656 switch (wrapper_type) {
2657 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
2658 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
2659 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
2660 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
2664 /* it is important to do the unlock after the load from wrps, since in
2665 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
2666 * to take the loader lock and some other thread may set the fields.
2668 mono_marshal_unlock ();
2672 /* Create the method from the builder and place it in the cache */
2673 static inline MonoMethod*
2674 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
2675 MonoMethodSignature *sig, int max_stack)
2677 MonoMethod **res = NULL;
2678 MonoRemotingMethods *wrps;
2679 GHashTable *cache = key->klass->image->remoting_invoke_cache;
2681 mono_marshal_lock ();
2682 wrps = g_hash_table_lookup (cache, key);
2684 wrps = g_new0 (MonoRemotingMethods, 1);
2685 g_hash_table_insert (cache, key, wrps);
2688 switch (mb->method->wrapper_type) {
2689 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
2690 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
2691 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
2692 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
2693 default: g_assert_not_reached (); break;
2695 mono_marshal_unlock ();
2699 newm = mono_mb_create_method (mb, sig, max_stack);
2701 mono_marshal_lock ();
2704 g_hash_table_insert (wrapper_hash, *res, key);
2705 mono_marshal_unlock ();
2707 mono_marshal_unlock ();
2708 mono_free_method (newm);
2716 mono_marshal_method_from_wrapper (MonoMethod *wrapper)
2720 if (wrapper->wrapper_type == MONO_WRAPPER_NONE)
2723 mono_marshal_lock ();
2724 res = g_hash_table_lookup (wrapper_hash, wrapper);
2725 mono_marshal_unlock ();
2730 mono_marshal_get_delegate_begin_invoke (MonoMethod *method)
2732 MonoMethodSignature *sig;
2733 MonoMethodBuilder *mb;
2739 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2740 !strcmp (method->name, "BeginInvoke"));
2742 sig = signature_no_pinvoke (method);
2744 cache = method->klass->image->delegate_begin_invoke_cache;
2745 if ((res = mono_marshal_find_in_cache (cache, sig)))
2748 g_assert (sig->hasthis);
2750 name = mono_signature_to_name (sig, "begin_invoke");
2751 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_BEGIN_INVOKE);
2754 mb->method->save_lmf = 1;
2756 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2758 mono_mb_emit_ldarg (mb, 0);
2759 mono_mb_emit_ldloc (mb, params_var);
2760 mono_mb_emit_icall (mb, mono_delegate_begin_invoke);
2761 emit_thread_interrupt_checkpoint (mb);
2762 mono_mb_emit_byte (mb, CEE_RET);
2764 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
2770 mono_delegate_end_invoke (MonoDelegate *delegate, gpointer *params)
2772 MonoDomain *domain = mono_domain_get ();
2773 MonoAsyncResult *ares;
2774 MonoMethod *method = NULL;
2775 MonoMethodSignature *sig;
2776 MonoMethodMessage *msg;
2777 MonoObject *res, *exc;
2778 MonoArray *out_args;
2781 g_assert (delegate);
2783 if (!delegate->method_info) {
2784 g_assert (delegate->method);
2785 MONO_OBJECT_SETREF (delegate, method_info, mono_method_get_object (domain, delegate->method, NULL));
2788 if (!delegate->method_info || !delegate->method_info->method)
2789 g_assert_not_reached ();
2791 klass = delegate->object.vtable->klass;
2793 method = mono_class_get_method_from_name (klass, "EndInvoke", -1);
2794 g_assert (method != NULL);
2796 sig = signature_no_pinvoke (method);
2798 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2800 ares = mono_array_get (msg->args, gpointer, sig->param_count - 1);
2803 if (ares->async_delegate != (MonoObject*)delegate && mono_get_runtime_info ()->framework_version [0] >= '2') {
2804 mono_raise_exception (mono_get_exception_invalid_operation (
2805 "The IAsyncResult object provided does not match this delegate."));
2809 if (delegate->target && mono_object_class (delegate->target) == mono_defaults.transparent_proxy_class) {
2810 MonoTransparentProxy* tp = (MonoTransparentProxy *)delegate->target;
2811 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
2812 mono_message_init (domain, msg, delegate->method_info, NULL);
2813 msg->call_type = CallType_EndInvoke;
2814 MONO_OBJECT_SETREF (msg, async_result, ares);
2815 res = mono_remoting_invoke ((MonoObject *)tp->rp, msg, &exc, &out_args);
2817 res = mono_thread_pool_finish (ares, &out_args, &exc);
2821 if (((MonoException*)exc)->stack_trace) {
2822 char *strace = mono_string_to_utf8 (((MonoException*)exc)->stack_trace);
2824 tmp = g_strdup_printf ("%s\nException Rethrown at:\n", strace);
2826 MONO_OBJECT_SETREF (((MonoException*)exc), stack_trace, mono_string_new (domain, tmp));
2829 mono_raise_exception ((MonoException*)exc);
2832 mono_method_return_message_restore (method, params, out_args);
2837 mono_mb_emit_restore_result (MonoMethodBuilder *mb, MonoType *return_type)
2839 MonoType *t = mono_type_get_underlying_type (return_type);
2841 if (return_type->byref)
2842 return_type = &mono_defaults.int_class->byval_arg;
2845 case MONO_TYPE_VOID:
2846 g_assert_not_reached ();
2849 case MONO_TYPE_STRING:
2850 case MONO_TYPE_CLASS:
2851 case MONO_TYPE_OBJECT:
2852 case MONO_TYPE_ARRAY:
2853 case MONO_TYPE_SZARRAY:
2857 case MONO_TYPE_BOOLEAN:
2860 case MONO_TYPE_CHAR:
2870 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (return_type));
2871 mono_mb_emit_byte (mb, mono_type_to_ldind (return_type));
2873 case MONO_TYPE_GENERICINST:
2874 if (!mono_type_generic_inst_is_valuetype (return_type))
2877 case MONO_TYPE_VALUETYPE: {
2878 MonoClass *klass = mono_class_from_mono_type (return_type);
2879 mono_mb_emit_op (mb, CEE_UNBOX, klass);
2880 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
2884 g_warning ("type 0x%x not handled", return_type->type);
2885 g_assert_not_reached ();
2888 mono_mb_emit_byte (mb, CEE_RET);
2892 mono_marshal_get_delegate_end_invoke (MonoMethod *method)
2894 MonoMethodSignature *sig;
2895 MonoMethodBuilder *mb;
2901 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
2902 !strcmp (method->name, "EndInvoke"));
2904 sig = signature_no_pinvoke (method);
2906 cache = method->klass->image->delegate_end_invoke_cache;
2907 if ((res = mono_marshal_find_in_cache (cache, sig)))
2910 g_assert (sig->hasthis);
2912 name = mono_signature_to_name (sig, "end_invoke");
2913 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_END_INVOKE);
2916 mb->method->save_lmf = 1;
2918 params_var = mono_mb_emit_save_args (mb, sig, FALSE);
2920 mono_mb_emit_ldarg (mb, 0);
2921 mono_mb_emit_ldloc (mb, params_var);
2922 mono_mb_emit_icall (mb, mono_delegate_end_invoke);
2923 emit_thread_interrupt_checkpoint (mb);
2925 if (sig->ret->type == MONO_TYPE_VOID) {
2926 mono_mb_emit_byte (mb, CEE_POP);
2927 mono_mb_emit_byte (mb, CEE_RET);
2929 mono_mb_emit_restore_result (mb, sig->ret);
2931 res = mono_mb_create_and_cache (cache, sig,
2932 mb, sig, sig->param_count + 16);
2939 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
2941 MonoMethodMessage *msg;
2942 MonoTransparentProxy *this;
2943 MonoObject *res, *exc;
2944 MonoArray *out_args;
2946 this = *((MonoTransparentProxy **)params [0]);
2949 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
2951 /* skip the this pointer */
2954 if (this->remote_class->proxy_class->contextbound && this->rp->context == (MonoObject *) mono_context_get ())
2957 MonoMethodSignature *sig = mono_method_signature (method);
2958 int count = sig->param_count;
2959 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
2961 for (i=0; i<count; i++) {
2962 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
2963 if (class->valuetype) {
2964 if (sig->params [i]->byref)
2965 mparams[i] = *((gpointer *)params [i]);
2967 mparams[i] = params [i];
2969 mparams[i] = *((gpointer**)params [i]);
2973 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
2976 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
2978 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
2981 mono_raise_exception ((MonoException *)exc);
2983 mono_method_return_message_restore (method, params, out_args);
2989 * cominterop_get_native_wrapper_adjusted:
2990 * @method: managed COM Interop method
2992 * Returns: the generated method to call with signature matching
2993 * the unmanaged COM Method signature
2996 cominterop_get_native_wrapper_adjusted (MonoMethod *method)
2999 MonoMethodBuilder *mb_native;
3000 MonoMarshalSpec **mspecs;
3001 MonoMethodSignature *sig, *sig_native;
3002 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
3005 sig = mono_method_signature (method);
3007 // create unmanaged wrapper
3008 mb_native = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
3009 sig_native = cominterop_method_signature (method);
3011 mspecs = g_new (MonoMarshalSpec*, sig_native->param_count+1);
3012 memset (mspecs, 0, sizeof(MonoMarshalSpec*)*(sig_native->param_count+1));
3014 mono_method_get_marshal_info (method, mspecs);
3016 // move managed args up one
3017 for (i = sig->param_count; i >= 1; i--)
3018 mspecs[i+1] = mspecs[i];
3020 // first arg is IntPtr for interface
3023 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG)) {
3024 // move return spec to last param
3025 if (!MONO_TYPE_IS_VOID (sig->ret))
3026 mspecs[sig_native->param_count] = mspecs[0];
3031 mono_marshal_emit_native_wrapper (method->klass->image, mb_native, sig_native, piinfo, mspecs, piinfo->addr, TRUE);
3033 res = mono_mb_create_method (mb_native, sig_native, sig_native->param_count + 16);
3035 mono_mb_free (mb_native);
3037 for (i = sig_native->param_count; i >= 0; i--)
3039 mono_metadata_free_marshal_spec (mspecs [i]);
3046 * cominterop_get_native_wrapper:
3047 * @method: managed method
3049 * Returns: the generated method to call
3052 cominterop_get_native_wrapper (MonoMethod *method)
3056 MonoMethodBuilder *mb;
3057 MonoMethodSignature *sig, *csig;
3061 cache = method->klass->image->cominterop_wrapper_cache;
3062 if ((res = mono_marshal_find_in_cache (cache, method)))
3065 mono_init_com_types ();
3067 sig = mono_method_signature (method);
3068 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
3070 /* if method klass is import, that means method
3071 * is really a com call. let interop system emit it.
3073 if (MONO_CLASS_IS_IMPORT(method->klass)) {
3074 /* FIXME: we have to call actual class .ctor
3075 * instead of just __ComObject .ctor.
3077 if (!strcmp(method->name, ".ctor")) {
3078 static MonoMethod *ctor = NULL;
3081 ctor = mono_class_get_method_from_name (mono_defaults.com_object_class, ".ctor", 0);
3082 mono_mb_emit_ldarg (mb, 0);
3083 mono_mb_emit_managed_call (mb, ctor, NULL);
3084 mono_mb_emit_byte (mb, CEE_RET);
3087 static MonoMethod * ThrowExceptionForHR = NULL;
3088 MonoMethod *adjusted_method;
3092 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
3094 // add local variables
3095 ptr_this = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
3096 if (!MONO_TYPE_IS_VOID (sig->ret))
3097 retval = mono_mb_add_local (mb, sig->ret);
3099 // get the type for the interface the method is defined on
3100 // and then get the underlying COM interface for that type
3101 mono_mb_emit_ldarg (mb, 0);
3102 mono_mb_emit_ptr (mb, method);
3103 mono_mb_emit_icall (mb, cominterop_get_method_interface);
3104 mono_mb_emit_icon (mb, TRUE);
3105 mono_mb_emit_icall (mb, cominterop_get_interface);
3106 mono_mb_emit_stloc (mb, ptr_this);
3108 // arg 1 is unmanaged this pointer
3109 mono_mb_emit_ldloc (mb, ptr_this);
3112 for (i = 1; i <= sig->param_count; i++)
3113 mono_mb_emit_ldarg (mb, i);
3115 // push managed return value as byref last argument
3116 if (!MONO_TYPE_IS_VOID (sig->ret) && !preserve_sig)
3117 mono_mb_emit_ldloc_addr (mb, retval);
3119 adjusted_method = cominterop_get_native_wrapper_adjusted (method);
3120 mono_mb_emit_managed_call (mb, adjusted_method, NULL);
3122 if (!preserve_sig) {
3123 if (!ThrowExceptionForHR)
3124 ThrowExceptionForHR = mono_class_get_method_from_name (mono_defaults.marshal_class, "ThrowExceptionForHR", 1);
3125 mono_mb_emit_managed_call (mb, ThrowExceptionForHR, NULL);
3127 // load return value managed is expecting
3128 if (!MONO_TYPE_IS_VOID (sig->ret))
3129 mono_mb_emit_ldloc (mb, retval);
3132 mono_mb_emit_byte (mb, CEE_RET);
3137 /* Does this case ever get hit? */
3139 char *msg = g_strdup ("non imported interfaces on \
3140 imported classes is not yet implemented.");
3141 mono_mb_emit_exception (mb, "NotSupportedException", msg);
3143 csig = signature_dup (method->klass->image, sig);
3145 res = mono_mb_create_and_cache (cache, method,
3146 mb, csig, csig->param_count + 16);
3152 * cominterop_get_invoke:
3153 * @method: managed method
3155 * Returns: the generated method that calls the underlying __ComObject
3156 * rather than the proxy object.
3159 cominterop_get_invoke (MonoMethod *method)
3161 MonoMethodSignature *sig;
3162 MonoMethodBuilder *mb;
3165 GHashTable* cache = method->klass->image->cominterop_invoke_cache;
3169 if ((res = mono_marshal_find_in_cache (cache, method)))
3172 sig = signature_no_pinvoke (method);
3174 /* we cant remote methods without this pointer */
3178 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP_INVOKE);
3180 /* get real proxy object, which is a ComInteropProxy in this case*/
3181 temp_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3182 mono_mb_emit_ldarg (mb, 0);
3183 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3184 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3186 /* load the RCW from the ComInteropProxy*/
3187 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
3188 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3190 /* load args and make the call on the RCW */
3191 for (i = 1; i <= sig->param_count; i++)
3192 mono_mb_emit_ldarg (mb, i);
3194 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
3195 MonoMethod * native_wrapper = cominterop_get_native_wrapper(method);
3196 mono_mb_emit_managed_call (mb, native_wrapper, NULL);
3199 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
3200 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3202 mono_mb_emit_op (mb, CEE_CALL, method);
3205 if (!strcmp(method->name, ".ctor")) {
3206 static MonoClass *com_interop_proxy_class = NULL;
3207 static MonoMethod *cache_proxy = NULL;
3209 if (!com_interop_proxy_class)
3210 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
3212 cache_proxy = mono_class_get_method_from_name (com_interop_proxy_class, "CacheProxy", 0);
3214 mono_mb_emit_ldarg (mb, 0);
3215 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3216 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3217 mono_mb_emit_managed_call (mb, cache_proxy, NULL);
3220 emit_thread_interrupt_checkpoint (mb);
3222 mono_mb_emit_byte (mb, CEE_RET);
3224 res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
3229 /* Maps a managed object to its unmanaged representation
3230 * i.e. it's COM Callable Wrapper (CCW).
3234 static GHashTable* ccw_hash = NULL;
3236 /* Maps a CCW interface to it's containing CCW.
3237 * Note that a CCW support many interfaces.
3239 * Value: MonoCCWInterface*
3241 static GHashTable* ccw_interface_hash = NULL;
3243 /* Maps the IUnknown value of a RCW to
3244 * it's MonoComInteropProxy*.
3248 static GHashTable* rcw_hash = NULL;
3251 mono_marshal_get_remoting_invoke (MonoMethod *method)
3253 MonoMethodSignature *sig;
3254 MonoMethodBuilder *mb;
3260 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3263 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
3264 if ((method->klass->is_com_object || method->klass == mono_defaults.com_object_class) && !mono_class_vtable (mono_domain_get (), method->klass)->remote)
3265 return cominterop_get_invoke(method);
3267 sig = signature_no_pinvoke (method);
3269 /* we cant remote methods without this pointer */
3273 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
3276 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
3277 mb->method->save_lmf = 1;
3279 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
3281 mono_mb_emit_ptr (mb, method);
3282 mono_mb_emit_ldloc (mb, params_var);
3283 mono_mb_emit_icall (mb, mono_remoting_wrapper);
3284 emit_thread_interrupt_checkpoint (mb);
3286 if (sig->ret->type == MONO_TYPE_VOID) {
3287 mono_mb_emit_byte (mb, CEE_POP);
3288 mono_mb_emit_byte (mb, CEE_RET);
3290 mono_mb_emit_restore_result (mb, sig->ret);
3293 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
3299 /* mono_get_xdomain_marshal_type()
3300 * Returns the kind of marshalling that a type needs for cross domain calls.
3302 static MonoXDomainMarshalType
3303 mono_get_xdomain_marshal_type (MonoType *t)
3306 case MONO_TYPE_VOID:
3307 g_assert_not_reached ();
3311 case MONO_TYPE_BOOLEAN:
3314 case MONO_TYPE_CHAR:
3321 return MONO_MARSHAL_NONE;
3322 case MONO_TYPE_STRING:
3323 return MONO_MARSHAL_COPY;
3324 case MONO_TYPE_ARRAY:
3325 case MONO_TYPE_SZARRAY: {
3326 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
3327 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
3328 return MONO_MARSHAL_COPY;
3333 return MONO_MARSHAL_SERIALIZE;
3337 /* mono_marshal_xdomain_copy_value
3338 * Makes a copy of "val" suitable for the current domain.
3341 mono_marshal_xdomain_copy_value (MonoObject *val)
3344 if (val == NULL) return NULL;
3346 domain = mono_domain_get ();
3348 switch (mono_object_class (val)->byval_arg.type) {
3349 case MONO_TYPE_VOID:
3350 g_assert_not_reached ();
3354 case MONO_TYPE_BOOLEAN:
3357 case MONO_TYPE_CHAR:
3363 case MONO_TYPE_R8: {
3364 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
3366 case MONO_TYPE_STRING: {
3367 MonoString *str = (MonoString *) val;
3368 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
3370 case MONO_TYPE_ARRAY:
3371 case MONO_TYPE_SZARRAY: {
3373 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
3374 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
3375 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
3376 if (mt == MONO_MARSHAL_COPY) {
3377 int i, len = mono_array_length (acopy);
3378 for (i = 0; i < len; i++) {
3379 MonoObject *item = mono_array_get (acopy, gpointer, i);
3380 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
3383 return (MonoObject *) acopy;
3387 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
3388 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
3389 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
3390 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
3391 newsb->length = oldsb->length;
3392 newsb->max_capacity = (gint32)0x7fffffff;
3393 return (MonoObject *) newsb;
3398 /* mono_marshal_xdomain_copy_out_value()
3399 * Copies the contents of the src instance into the dst instance. src and dst
3400 * must have the same type, and if they are arrays, the same size.
3403 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
3405 if (src == NULL || dst == NULL) return;
3407 g_assert (mono_object_class (src) == mono_object_class (dst));
3409 switch (mono_object_class (src)->byval_arg.type) {
3410 case MONO_TYPE_ARRAY:
3411 case MONO_TYPE_SZARRAY: {
3412 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
3413 if (mt == MONO_MARSHAL_SERIALIZE) return;
3414 if (mt == MONO_MARSHAL_COPY) {
3415 int i, len = mono_array_length ((MonoArray *)dst);
3416 for (i = 0; i < len; i++) {
3417 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
3418 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
3421 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
3427 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
3428 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
3429 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
3431 MONO_OBJECT_SETREF (dst_sb, str, mono_string_new_utf16 (mono_object_domain (dst), mono_string_chars (src_sb->str), mono_string_length (src_sb->str)));
3432 dst_sb->cached_str = NULL;
3433 dst_sb->length = src_sb->length;
3438 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
3440 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
3441 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3445 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
3447 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
3450 /* mono_marshal_supports_fast_xdomain()
3451 * Returns TRUE if the method can use the fast xdomain wrapper.
3454 mono_marshal_supports_fast_xdomain (MonoMethod *method)
3456 return !method->klass->contextbound &&
3457 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
3461 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
3463 MonoDomain *current_domain = mono_domain_get ();
3464 MonoDomain *domain = mono_domain_get_by_id (id);
3466 if (!domain || !mono_domain_set (domain, FALSE))
3467 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
3470 mono_thread_push_appdomain_ref (domain);
3472 mono_thread_pop_appdomain_ref ();
3474 return current_domain->domain_id;
3478 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
3480 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
3483 /* mono_marshal_emit_load_domain_method ()
3484 * Loads into the stack a pointer to the code of the provided method for
3485 * the current domain.
3488 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
3490 /* We need a pointer to the method for the running domain (not the domain
3491 * that compiles the method).
3493 mono_mb_emit_ptr (mb, method);
3494 mono_mb_emit_icall (mb, mono_compile_method);
3497 /* mono_marshal_check_domain_image ()
3498 * Returns TRUE if the image is loaded in the specified
3499 * application domain.
3502 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
3507 MonoDomain *domain = mono_domain_get_by_id (domain_id);
3511 mono_domain_assemblies_lock (domain);
3512 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
3514 if (ass->image == image)
3517 mono_domain_assemblies_unlock (domain);
3522 /* mono_marshal_get_xappdomain_dispatch ()
3523 * Generates a method that dispatches a method call from another domain into
3524 * the current domain.
3527 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
3529 MonoMethodSignature *sig, *csig;
3530 MonoMethodBuilder *mb;
3532 int i, j, param_index, copy_locals_base;
3533 MonoClass *ret_class = NULL;
3534 int loc_array=0, loc_return=0, loc_serialized_exc=0;
3535 MonoExceptionClause *main_clause;
3536 MonoMethodHeader *header;
3538 gboolean copy_return;
3540 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
3543 sig = mono_method_signature (method);
3544 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
3547 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
3548 csig->params [j++] = &mono_defaults.object_class->byval_arg;
3549 csig->params [j++] = &byte_array_class->this_arg;
3550 csig->params [j++] = &byte_array_class->this_arg;
3551 for (i = 0; i < sig->param_count; i++) {
3552 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
3553 csig->params [j++] = sig->params [i];
3556 csig->ret = sig->ret;
3558 csig->ret = &mono_defaults.void_class->byval_arg;
3560 csig->hasthis = FALSE;
3562 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
3563 mb->method->save_lmf = 1;
3567 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3568 if (complex_count > 0)
3569 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3570 if (sig->ret->type != MONO_TYPE_VOID) {
3571 loc_return = mono_mb_add_local (mb, sig->ret);
3572 ret_class = mono_class_from_mono_type (sig->ret);
3577 mono_loader_lock ();
3578 main_clause = mono_mempool_alloc0 (method->klass->image->mempool, sizeof (MonoExceptionClause));
3579 mono_loader_unlock ();
3580 main_clause->try_offset = mono_mb_get_label (mb);
3582 /* Clean the call context */
3584 mono_mb_emit_byte (mb, CEE_LDNULL);
3585 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
3586 mono_mb_emit_byte (mb, CEE_POP);
3588 /* Deserialize call data */
3590 mono_mb_emit_ldarg (mb, 1);
3591 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3592 mono_mb_emit_byte (mb, CEE_DUP);
3593 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
3595 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
3596 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
3598 if (complex_count > 0)
3599 mono_mb_emit_stloc (mb, loc_array);
3601 mono_mb_emit_byte (mb, CEE_POP);
3603 mono_mb_patch_short_branch (mb, pos);
3605 /* Get the target object */
3607 mono_mb_emit_ldarg (mb, 0);
3608 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
3610 /* Load the arguments */
3612 copy_locals_base = mb->locals;
3613 param_index = 3; // Index of the first non-serialized parameter of this wrapper
3615 for (i = 0; i < sig->param_count; i++) {
3616 MonoType *pt = sig->params [i];
3617 MonoClass *pclass = mono_class_from_mono_type (pt);
3618 switch (marshal_types [i]) {
3619 case MONO_MARSHAL_SERIALIZE: {
3620 /* take the value from the serialized array */
3621 mono_mb_emit_ldloc (mb, loc_array);
3622 mono_mb_emit_icon (mb, j++);
3624 if (pclass->valuetype) {
3625 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3626 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3628 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
3631 if (pclass->valuetype) {
3632 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3633 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
3634 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3636 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
3637 if (pclass != mono_defaults.object_class) {
3638 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
3644 case MONO_MARSHAL_COPY_OUT: {
3645 /* Keep a local copy of the value since we need to copy it back after the call */
3646 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3647 mono_mb_emit_ldarg (mb, param_index++);
3648 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3649 mono_mb_emit_byte (mb, CEE_DUP);
3650 mono_mb_emit_stloc (mb, copy_local);
3653 case MONO_MARSHAL_COPY: {
3654 mono_mb_emit_ldarg (mb, param_index);
3656 mono_mb_emit_byte (mb, CEE_DUP);
3657 mono_mb_emit_byte (mb, CEE_DUP);
3658 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3659 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3660 mono_mb_emit_byte (mb, CEE_STIND_REF);
3662 mono_marshal_emit_xdomain_copy_value (mb, pclass);
3667 case MONO_MARSHAL_NONE:
3668 mono_mb_emit_ldarg (mb, param_index++);
3673 /* Make the call to the real object */
3675 emit_thread_force_interrupt_checkpoint (mb);
3677 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
3679 if (sig->ret->type != MONO_TYPE_VOID)
3680 mono_mb_emit_stloc (mb, loc_return);
3682 /* copy back MONO_MARSHAL_COPY_OUT parameters */
3686 for (i = 0; i < sig->param_count; i++) {
3687 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
3688 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
3689 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
3690 mono_mb_emit_ldarg (mb, param_index);
3691 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
3696 /* Serialize the return values */
3698 if (complex_out_count > 0) {
3699 /* Reset parameters in the array that don't need to be serialized back */
3701 for (i = 0; i < sig->param_count; i++) {
3702 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
3703 if (!sig->params [i]->byref) {
3704 mono_mb_emit_ldloc (mb, loc_array);
3705 mono_mb_emit_icon (mb, j);
3706 mono_mb_emit_byte (mb, CEE_LDNULL);
3707 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3712 /* Add the return value to the array */
3714 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3715 mono_mb_emit_ldloc (mb, loc_array);
3716 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
3717 mono_mb_emit_ldloc (mb, loc_return);
3718 if (ret_class->valuetype) {
3719 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3721 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3726 mono_mb_emit_ldarg (mb, 1);
3727 mono_mb_emit_ldloc (mb, loc_array);
3728 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3729 mono_mb_emit_byte (mb, CEE_STIND_REF);
3730 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
3731 mono_mb_emit_ldarg (mb, 1);
3732 mono_mb_emit_ldloc (mb, loc_return);
3733 if (ret_class->valuetype) {
3734 mono_mb_emit_op (mb, CEE_BOX, ret_class);
3736 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3737 mono_mb_emit_byte (mb, CEE_STIND_REF);
3739 mono_mb_emit_ldarg (mb, 1);
3740 mono_mb_emit_byte (mb, CEE_LDNULL);
3741 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3742 mono_mb_emit_byte (mb, CEE_STIND_REF);
3745 mono_mb_emit_ldarg (mb, 2);
3746 mono_mb_emit_byte (mb, CEE_LDNULL);
3747 mono_mb_emit_byte (mb, CEE_STIND_REF);
3748 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
3750 /* Main exception catch */
3751 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
3752 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
3753 main_clause->data.catch_class = mono_defaults.object_class;
3756 main_clause->handler_offset = mono_mb_get_label (mb);
3757 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
3758 mono_mb_emit_stloc (mb, loc_serialized_exc);
3759 mono_mb_emit_ldarg (mb, 2);
3760 mono_mb_emit_ldloc (mb, loc_serialized_exc);
3761 mono_mb_emit_byte (mb, CEE_STIND_REF);
3762 mono_mb_emit_branch (mb, CEE_LEAVE);
3763 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
3766 mono_mb_patch_branch (mb, pos_leave);
3769 mono_mb_emit_ldloc (mb, loc_return);
3771 mono_mb_emit_byte (mb, CEE_RET);
3773 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
3776 header = ((MonoMethodNormal *)res)->header;
3777 header->num_clauses = 1;
3778 header->clauses = main_clause;
3783 /* mono_marshal_get_xappdomain_invoke ()
3784 * Generates a fast remoting wrapper for cross app domain calls.
3787 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
3789 MonoMethodSignature *sig;
3790 MonoMethodBuilder *mb;
3792 int i, j, complex_count, complex_out_count, copy_locals_base;
3794 MonoClass *ret_class = NULL;
3795 MonoMethod *xdomain_method;
3796 int ret_marshal_type = MONO_MARSHAL_NONE;
3797 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
3798 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
3799 int pos, pos_dispatch, pos_noex;
3800 gboolean copy_return = FALSE;
3804 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
3807 /* we cant remote methods without this pointer */
3808 if (!mono_method_signature (method)->hasthis)
3811 if (!mono_marshal_supports_fast_xdomain (method))
3812 return mono_marshal_get_remoting_invoke (method);
3814 mono_remoting_marshal_init ();
3816 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
3819 sig = signature_no_pinvoke (method);
3821 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
3822 mb->method->save_lmf = 1;
3824 /* Count the number of parameters that need to be serialized */
3826 marshal_types = alloca (sizeof (int) * sig->param_count);
3827 complex_count = complex_out_count = 0;
3828 for (i = 0; i < sig->param_count; i++) {
3829 MonoType *ptype = sig->params[i];
3830 int mt = mono_get_xdomain_marshal_type (ptype);
3832 /* If the [Out] attribute is applied to a parameter that can be internally copied,
3833 * the copy will be made by reusing the original object instance
3835 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
3836 mt = MONO_MARSHAL_COPY_OUT;
3837 else if (mt == MONO_MARSHAL_SERIALIZE) {
3839 if (ptype->byref) complex_out_count++;
3841 marshal_types [i] = mt;
3844 if (sig->ret->type != MONO_TYPE_VOID) {
3845 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
3846 ret_class = mono_class_from_mono_type (sig->ret);
3847 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
3852 if (complex_count > 0)
3853 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3854 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3855 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3857 loc_return = mono_mb_add_local (mb, sig->ret);
3858 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3859 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
3860 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
3861 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
3863 /* Save thread domain data */
3865 mono_mb_emit_icall (mb, mono_context_get);
3866 mono_mb_emit_byte (mb, CEE_DUP);
3867 mono_mb_emit_stloc (mb, loc_context);
3869 /* If the thread is not running in the default context, it needs to go
3870 * through the whole remoting sink, since the context is going to change
3872 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
3873 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3875 /* Another case in which the fast path can't be used: when the target domain
3876 * has a different image for the same assembly.
3879 /* Get the target domain id */
3881 mono_mb_emit_ldarg (mb, 0);
3882 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
3883 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3884 mono_mb_emit_byte (mb, CEE_DUP);
3885 mono_mb_emit_stloc (mb, loc_real_proxy);
3887 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
3888 mono_mb_emit_byte (mb, CEE_LDIND_I4);
3889 mono_mb_emit_stloc (mb, loc_domainid);
3891 /* Check if the target domain has the same image for the required assembly */
3893 mono_mb_emit_ldloc (mb, loc_domainid);
3894 mono_mb_emit_ptr (mb, method->klass->image);
3895 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
3896 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
3898 /* Use the whole remoting sink to dispatch this message */
3900 mono_mb_patch_short_branch (mb, pos);
3902 mono_mb_emit_ldarg (mb, 0);
3903 for (i = 0; i < sig->param_count; i++)
3904 mono_mb_emit_ldarg (mb, i + 1);
3906 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
3907 mono_mb_emit_byte (mb, CEE_RET);
3908 mono_mb_patch_short_branch (mb, pos_dispatch);
3910 /* Create the array that will hold the parameters to be serialized */
3912 if (complex_count > 0) {
3913 mono_mb_emit_icon (mb, (ret_marshal_type == MONO_MARSHAL_SERIALIZE && complex_out_count > 0) ? complex_count + 1 : complex_count); /* +1 for the return type */
3914 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
3917 for (i = 0; i < sig->param_count; i++) {
3919 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
3920 pclass = mono_class_from_mono_type (sig->params[i]);
3921 mono_mb_emit_byte (mb, CEE_DUP);
3922 mono_mb_emit_icon (mb, j);
3923 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
3924 if (sig->params[i]->byref) {
3925 if (pclass->valuetype)
3926 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
3928 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3930 if (pclass->valuetype)
3931 mono_mb_emit_op (mb, CEE_BOX, pclass);
3932 mono_mb_emit_byte (mb, CEE_STELEM_REF);
3935 mono_mb_emit_stloc (mb, loc_array);
3937 /* Serialize parameters */
3939 mono_mb_emit_ldloc (mb, loc_array);
3940 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3941 mono_mb_emit_stloc (mb, loc_serialized_data);
3943 mono_mb_emit_byte (mb, CEE_LDNULL);
3944 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
3945 mono_mb_emit_stloc (mb, loc_serialized_data);
3950 mono_mb_emit_ldloc (mb, loc_domainid);
3951 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
3952 mono_marshal_emit_switch_domain (mb);
3953 mono_mb_emit_stloc (mb, loc_old_domainid);
3955 /* Load the arguments */
3957 mono_mb_emit_ldloc (mb, loc_real_proxy);
3958 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
3959 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
3961 copy_locals_base = mb->locals;
3962 for (i = 0; i < sig->param_count; i++) {
3963 switch (marshal_types [i]) {
3964 case MONO_MARSHAL_SERIALIZE:
3966 case MONO_MARSHAL_COPY: {
3967 mono_mb_emit_ldarg (mb, i+1);
3968 if (sig->params [i]->byref) {
3969 /* make a local copy of the byref parameter. The real parameter
3970 * will be updated after the xdomain call
3972 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
3973 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
3974 mono_mb_emit_byte (mb, CEE_LDIND_REF);
3975 mono_mb_emit_stloc (mb, copy_local);
3976 mono_mb_emit_ldloc_addr (mb, copy_local);
3980 case MONO_MARSHAL_COPY_OUT:
3981 case MONO_MARSHAL_NONE:
3982 mono_mb_emit_ldarg (mb, i+1);
3987 /* Make the call to the invoke wrapper in the target domain */
3989 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
3990 mono_marshal_emit_load_domain_method (mb, xdomain_method);
3991 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
3994 mono_mb_emit_stloc (mb, loc_return);
3998 mono_mb_emit_ldloc (mb, loc_old_domainid);
3999 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4000 mono_marshal_emit_switch_domain (mb);
4001 mono_mb_emit_byte (mb, CEE_POP);
4003 /* Restore thread domain data */
4005 mono_mb_emit_ldloc (mb, loc_context);
4006 mono_mb_emit_icall (mb, mono_context_set);
4008 /* if (loc_serialized_exc != null) ... */
4010 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4011 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4013 mono_mb_emit_ldloc (mb, loc_serialized_exc);
4014 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4015 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4016 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
4017 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
4018 mono_mb_emit_byte (mb, CEE_THROW);
4019 mono_mb_patch_short_branch (mb, pos_noex);
4021 /* copy back non-serialized output parameters */
4024 for (i = 0; i < sig->param_count; i++) {
4025 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
4026 mono_mb_emit_ldarg (mb, i + 1);
4027 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
4028 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
4029 mono_mb_emit_byte (mb, CEE_STIND_REF);
4032 /* Deserialize out parameters */
4034 if (complex_out_count > 0) {
4035 mono_mb_emit_ldloc (mb, loc_serialized_data);
4036 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4037 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4038 mono_mb_emit_stloc (mb, loc_array);
4040 /* Copy back output parameters and return type */
4043 for (i = 0; i < sig->param_count; i++) {
4044 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
4045 if (sig->params[i]->byref) {
4046 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
4047 mono_mb_emit_ldarg (mb, i + 1);
4048 mono_mb_emit_ldloc (mb, loc_array);
4049 mono_mb_emit_icon (mb, j);
4050 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4051 if (pclass->valuetype) {
4052 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
4053 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
4054 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
4056 if (pclass != mono_defaults.object_class)
4057 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
4058 mono_mb_emit_byte (mb, CEE_STIND_REF);
4064 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4065 mono_mb_emit_ldloc (mb, loc_array);
4066 mono_mb_emit_icon (mb, complex_count);
4067 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
4068 if (ret_class->valuetype) {
4069 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
4070 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
4073 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
4074 mono_mb_emit_ldloc (mb, loc_serialized_data);
4075 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4076 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4077 if (ret_class->valuetype) {
4078 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
4079 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
4080 } else if (ret_class != mono_defaults.object_class) {
4081 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
4084 mono_mb_emit_ldloc (mb, loc_serialized_data);
4085 mono_mb_emit_byte (mb, CEE_DUP);
4086 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4087 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
4089 mono_mb_patch_short_branch (mb, pos);
4090 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
4091 mono_mb_emit_byte (mb, CEE_POP);
4095 mono_mb_emit_ldloc (mb, loc_return);
4096 if (ret_marshal_type == MONO_MARSHAL_COPY)
4097 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
4100 mono_mb_emit_byte (mb, CEE_RET);
4102 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4109 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
4111 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN)
4112 return mono_marshal_get_xappdomain_invoke (method);
4113 else if (target_type == MONO_REMOTING_TARGET_COMINTEROP)
4114 return cominterop_get_invoke (method);
4116 return mono_marshal_get_remoting_invoke (method);
4119 G_GNUC_UNUSED static gpointer
4120 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
4122 if (rp->target_domain_id != -1)
4123 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
4125 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
4129 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
4131 MonoMethodSignature *sig;
4132 MonoMethodBuilder *mb;
4133 MonoMethod *res, *native;
4134 int i, pos, pos_rem;
4138 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
4141 /* we cant remote methods without this pointer */
4142 g_assert (mono_method_signature (method)->hasthis);
4144 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
4147 sig = signature_no_pinvoke (method);
4149 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
4151 for (i = 0; i <= sig->param_count; i++)
4152 mono_mb_emit_ldarg (mb, i);
4154 mono_mb_emit_ldarg (mb, 0);
4155 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4157 if (mono_marshal_supports_fast_xdomain (method)) {
4158 mono_mb_emit_ldarg (mb, 0);
4159 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
4161 /* wrapper for cross app domain calls */
4162 native = mono_marshal_get_xappdomain_invoke (method);
4163 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4164 mono_mb_emit_byte (mb, CEE_RET);
4166 mono_mb_patch_branch (mb, pos_rem);
4168 /* wrapper for normal remote calls */
4169 native = mono_marshal_get_remoting_invoke (method);
4170 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
4171 mono_mb_emit_byte (mb, CEE_RET);
4174 mono_mb_patch_branch (mb, pos);
4175 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
4176 mono_mb_emit_byte (mb, CEE_RET);
4178 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
4186 MonoMethodSignature *sig;
4188 } SignatureMethodPair;
4191 signature_method_pair_hash (gconstpointer data)
4193 SignatureMethodPair *pair = (SignatureMethodPair*)data;
4195 return mono_signature_hash (pair->sig) ^ mono_aligned_addr_hash (pair->method);
4199 signature_method_pair_equal (SignatureMethodPair *pair1, SignatureMethodPair *pair2)
4201 return mono_metadata_signature_equal (pair1->sig, pair2->sig) && (pair1->method == pair2->method);
4205 free_signature_method_pair (SignatureMethodPair *pair)
4211 * the returned method invokes all methods in a multicast delegate.
4214 mono_marshal_get_delegate_invoke (MonoMethod *method, MonoDelegate *del)
4216 MonoMethodSignature *sig, *static_sig;
4218 MonoMethodBuilder *mb;
4219 MonoMethod *res, *newm;
4221 SignatureMethodPair key;
4222 SignatureMethodPair *new_key;
4223 int local_prev, local_target;
4226 MonoMethod *target_method = NULL;
4227 gboolean callvirt = FALSE;
4230 * If the delegate target is null, and the target method is not static, a virtual
4231 * call is made to that method with the first delegate argument as this. This is
4232 * a non-documented .NET feature.
4234 if (del && !del->target && del->method && mono_method_signature (del->method)->hasthis) {
4236 target_method = del->method;
4239 g_assert (method && method->klass->parent == mono_defaults.multicastdelegate_class &&
4240 !strcmp (method->name, "Invoke"));
4242 sig = signature_no_pinvoke (method);
4245 /* We need to cache the signature+method pair */
4246 mono_marshal_lock ();
4247 if (!method->klass->image->delegate_abstract_invoke_cache)
4248 method->klass->image->delegate_abstract_invoke_cache = g_hash_table_new_full (signature_method_pair_hash, (GEqualFunc)signature_method_pair_equal, (GDestroyNotify)free_signature_method_pair, NULL);
4249 cache = method->klass->image->delegate_abstract_invoke_cache;
4251 key.method = target_method;
4252 res = g_hash_table_lookup (cache, &key);
4253 mono_marshal_unlock ();
4257 cache = method->klass->image->delegate_invoke_cache;
4258 if ((res = mono_marshal_find_in_cache (cache, sig)))
4262 static_sig = signature_dup (method->klass->image, sig);
4263 static_sig->hasthis = 0;
4265 name = mono_signature_to_name (sig, "invoke");
4266 mb = mono_mb_new (mono_defaults.multicastdelegate_class, name, MONO_WRAPPER_DELEGATE_INVOKE);
4269 /* allocate local 0 (object) */
4270 local_target = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4271 local_prev = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4273 g_assert (sig->hasthis);
4277 * prev.Invoke( args .. );
4278 * return this.<target>( args .. );
4281 /* this wrapper can be used in unmanaged-managed transitions */
4282 emit_thread_interrupt_checkpoint (mb);
4284 /* get this->prev */
4285 mono_mb_emit_ldarg (mb, 0);
4286 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoMulticastDelegate, prev));
4287 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4288 mono_mb_emit_stloc (mb, local_prev);
4289 mono_mb_emit_ldloc (mb, local_prev);
4291 /* if prev != null */
4292 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4296 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4297 mono_mb_emit_byte (mb, CEE_MONO_NOT_TAKEN);
4299 mono_mb_emit_ldloc (mb, local_prev);
4300 for (i = 0; i < sig->param_count; i++)
4301 mono_mb_emit_ldarg (mb, i + 1);
4302 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
4303 if (sig->ret->type != MONO_TYPE_VOID)
4304 mono_mb_emit_byte (mb, CEE_POP);
4306 /* continued or prev == null */
4307 mono_mb_patch_branch (mb, pos0);
4309 /* get this->target */
4310 mono_mb_emit_ldarg (mb, 0);
4311 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, target));
4312 mono_mb_emit_byte (mb, CEE_LDIND_REF);
4313 mono_mb_emit_stloc (mb, local_target);
4315 /* if target != null */
4316 mono_mb_emit_ldloc (mb, local_target);
4317 pos0 = mono_mb_emit_branch (mb, CEE_BRFALSE);
4319 /* then call this->method_ptr nonstatic */
4322 mono_mb_emit_exception_full (mb, "System", "NotImplementedException", "");
4324 mono_mb_emit_ldloc (mb, local_target);
4325 for (i = 0; i < sig->param_count; ++i)
4326 mono_mb_emit_ldarg (mb, i + 1);
4327 mono_mb_emit_ldarg (mb, 0);
4328 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4329 mono_mb_emit_byte (mb, CEE_LDIND_I );
4330 mono_mb_emit_op (mb, CEE_CALLI, sig);
4332 mono_mb_emit_byte (mb, CEE_RET);
4335 /* else [target == null] call this->method_ptr static */
4336 mono_mb_patch_branch (mb, pos0);
4339 mono_mb_emit_ldarg (mb, 1);
4340 mono_mb_emit_op (mb, CEE_CASTCLASS, target_method->klass);
4341 for (i = 1; i < sig->param_count; ++i)
4342 mono_mb_emit_ldarg (mb, i + 1);
4343 mono_mb_emit_op (mb, CEE_CALLVIRT, target_method);
4345 for (i = 0; i < sig->param_count; ++i)
4346 mono_mb_emit_ldarg (mb, i + 1);
4347 mono_mb_emit_ldarg (mb, 0);
4348 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoDelegate, method_ptr));
4349 mono_mb_emit_byte (mb, CEE_LDIND_I );
4350 mono_mb_emit_op (mb, CEE_CALLI, static_sig);
4353 mono_mb_emit_byte (mb, CEE_RET);
4356 // From mono_mb_create_and_cache
4357 newm = mono_mb_create_method (mb, sig, sig->param_count + 16);
4358 mono_marshal_lock ();
4359 res = g_hash_table_lookup (cache, &key);
4362 new_key = g_new0 (SignatureMethodPair, 1);
4364 new_key->method = target_method;
4365 g_hash_table_insert (cache, new_key, res);
4366 g_hash_table_insert (wrapper_hash, res, new_key);
4367 mono_marshal_unlock ();
4369 mono_marshal_unlock ();
4370 mono_free_method (newm);
4373 res = mono_mb_create_and_cache (cache, sig, mb, sig, sig->param_count + 16);
4381 * signature_dup_add_this:
4383 * Make a copy of @sig, adding an explicit this argument.
4385 static MonoMethodSignature*
4386 signature_dup_add_this (MonoMethodSignature *sig, MonoClass *klass)
4388 MonoMethodSignature *res;
4391 res = mono_metadata_signature_alloc (klass->image, sig->param_count + 1);
4392 memcpy (res, sig, sizeof (MonoMethodSignature));
4393 res->param_count = sig->param_count + 1;
4394 res->hasthis = FALSE;
4395 for (i = sig->param_count - 1; i >= 0; i --)
4396 res->params [i + 1] = sig->params [i];
4397 res->params [0] = &mono_ptr_class_get (&klass->byval_arg)->byval_arg;
4403 MonoMethodSignature *ctor_sig;
4404 MonoMethodSignature *sig;
4407 /* protected by the marshal lock, contains CtorSigPair pointers */
4408 static GSList *strsig_list = NULL;
4410 static MonoMethodSignature *
4411 lookup_string_ctor_signature (MonoMethodSignature *sig)
4413 MonoMethodSignature *callsig;
4417 mono_marshal_lock ();
4419 for (item = strsig_list; item; item = item->next) {
4421 /* mono_metadata_signature_equal () is safe to call with the marshal lock
4422 * because it is lock-free.
4424 if (mono_metadata_signature_equal (sig, cs->ctor_sig)) {
4429 mono_marshal_unlock ();
4433 static MonoMethodSignature *
4434 add_string_ctor_signature (MonoMethod *method)
4436 MonoMethodSignature *callsig;
4439 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4440 callsig->ret = &mono_defaults.string_class->byval_arg;
4441 cs = g_new (CtorSigPair, 1);
4443 cs->ctor_sig = mono_method_signature (method);
4445 mono_marshal_lock ();
4446 strsig_list = g_slist_prepend (strsig_list, cs);
4447 mono_marshal_unlock ();
4452 * generates IL code for the runtime invoke function
4453 * MonoObject *runtime_invoke (MonoObject *this, void **params, MonoObject **exc, void* method)
4455 * we also catch exceptions if exc != null
4458 mono_marshal_get_runtime_invoke (MonoMethod *method)
4460 MonoMethodSignature *sig, *csig, *callsig;
4461 MonoExceptionClause *clause;
4462 MonoMethodHeader *header;
4463 MonoMethodBuilder *mb;
4464 GHashTable *cache = NULL;
4465 MonoClass *target_klass;
4466 MonoMethod *res = NULL;
4467 static MonoString *string_dummy = NULL;
4468 static MonoMethodSignature *delay_abort_sig = NULL;
4471 gboolean need_direct_wrapper = FALSE;
4475 if (method->klass->rank && (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
4476 (method->iflags & METHOD_IMPL_ATTRIBUTE_NATIVE)) {
4478 * Array Get/Set/Address methods. The JIT implements them using inline code
4479 * so we need to create an invoke wrapper which calls the method directly.
4481 need_direct_wrapper = TRUE;
4484 if (method->string_ctor) {
4485 callsig = lookup_string_ctor_signature (mono_method_signature (method));
4487 callsig = add_string_ctor_signature (method);
4489 if (method->klass->valuetype && mono_method_signature (method)->hasthis) {
4491 * Valuetype methods receive a managed pointer as the this argument.
4492 * Create a new signature to reflect this.
4494 callsig = signature_dup_add_this (mono_method_signature (method), method->klass);
4496 if (method->dynamic)
4497 callsig = signature_dup (method->klass->image, mono_method_signature (method));
4499 callsig = mono_method_signature (method);
4503 /* See bug #80743 */
4505 * FIXME: Sharing runtime invoke wrappers between different methods means that
4506 * calling a method of klass A might invoke the type initializer of class B.
4507 * Normally, the type initializer of type B was already executed when B's method
4508 * was called but in some complex cases this might not be true.
4509 * See #349621 for an example. We avoid that for mscorlib methods by putting every
4510 * wrapper into the object class, but the non-mscorlib case needs fixing.
4512 if (method->klass->image == mono_defaults.corlib)
4513 target_klass = mono_defaults.object_class;
4515 target_klass = method->klass;
4518 target_klass = mono_defaults.object_class;
4520 * if types in the signature belong to non-mscorlib, we cache only
4521 * in the method image
4523 if (mono_class_from_mono_type (callsig->ret)->image != mono_defaults.corlib) {
4524 target_klass = method->klass;
4526 for (i = 0; i < callsig->param_count; i++) {
4527 if (mono_class_from_mono_type (callsig->params [i])->image != mono_defaults.corlib) {
4528 target_klass = method->klass;
4534 if (need_direct_wrapper) {
4535 cache = target_klass->image->runtime_invoke_direct_cache;
4536 res = mono_marshal_find_in_cache (cache, method);
4538 cache = target_klass->image->runtime_invoke_cache;
4540 /* from mono_marshal_find_in_cache */
4541 mono_marshal_lock ();
4542 res = g_hash_table_lookup (cache, callsig);
4543 mono_marshal_unlock ();
4550 if (!delay_abort_sig) {
4551 delay_abort_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
4552 delay_abort_sig->ret = &mono_defaults.void_class->byval_arg;
4553 delay_abort_sig->pinvoke = 0;
4556 /* to make it work with our special string constructors */
4557 if (!string_dummy) {
4558 MONO_GC_REGISTER_ROOT (string_dummy);
4559 string_dummy = mono_string_new_wrapper ("dummy");
4562 sig = mono_method_signature (method);
4564 csig = mono_metadata_signature_alloc (target_klass->image, 4);
4566 csig->ret = &mono_defaults.object_class->byval_arg;
4567 if (method->klass->valuetype && mono_method_signature (method)->hasthis)
4568 csig->params [0] = callsig->params [0];
4570 csig->params [0] = &mono_defaults.object_class->byval_arg;
4571 csig->params [1] = &mono_defaults.int_class->byval_arg;
4572 csig->params [2] = &mono_defaults.int_class->byval_arg;
4573 csig->params [3] = &mono_defaults.int_class->byval_arg;
4575 name = mono_signature_to_name (callsig, "runtime_invoke");
4576 mb = mono_mb_new (target_klass, name, MONO_WRAPPER_RUNTIME_INVOKE);
4579 /* allocate local 0 (object) tmp */
4580 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4581 /* allocate local 1 (object) exc */
4582 mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
4584 /* cond set *exc to null */
4585 mono_mb_emit_byte (mb, CEE_LDARG_2);
4586 mono_mb_emit_byte (mb, CEE_BRFALSE_S);
4587 mono_mb_emit_byte (mb, 3);
4588 mono_mb_emit_byte (mb, CEE_LDARG_2);
4589 mono_mb_emit_byte (mb, CEE_LDNULL);
4590 mono_mb_emit_byte (mb, CEE_STIND_REF);
4592 emit_thread_force_interrupt_checkpoint (mb);
4595 if (method->string_ctor) {
4596 mono_mb_emit_ptr (mb, string_dummy);
4598 mono_mb_emit_ldarg (mb, 0);
4602 for (i = 0; i < sig->param_count; i++) {
4603 MonoType *t = sig->params [i];
4606 mono_mb_emit_ldarg (mb, 1);
4608 mono_mb_emit_icon (mb, sizeof (gpointer) * i);
4609 mono_mb_emit_byte (mb, CEE_ADD);
4613 mono_mb_emit_byte (mb, CEE_LDIND_I);
4617 type = sig->params [i]->type;
4621 case MONO_TYPE_BOOLEAN:
4625 case MONO_TYPE_CHAR:
4634 mono_mb_emit_byte (mb, CEE_LDIND_I);
4635 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4637 case MONO_TYPE_STRING:
4638 case MONO_TYPE_CLASS:
4639 case MONO_TYPE_ARRAY:
4641 case MONO_TYPE_SZARRAY:
4642 case MONO_TYPE_OBJECT:
4643 mono_mb_emit_byte (mb, mono_type_to_ldind (sig->params [i]));
4645 case MONO_TYPE_GENERICINST:
4646 if (!mono_type_generic_inst_is_valuetype (sig->params [i])) {
4647 mono_mb_emit_byte (mb, CEE_LDIND_I);
4652 case MONO_TYPE_VALUETYPE:
4653 if (type == MONO_TYPE_VALUETYPE && t->data.klass->enumtype) {
4654 type = t->data.klass->enum_basetype->type;
4657 mono_mb_emit_byte (mb, CEE_LDIND_I);
4658 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4659 /* Need to convert a boxed vtype to an mp to a Nullable struct */
4660 mono_mb_emit_op (mb, CEE_UNBOX, mono_class_from_mono_type (sig->params [i]));
4661 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4663 mono_mb_emit_op (mb, CEE_LDOBJ, mono_class_from_mono_type (sig->params [i]));
4667 g_assert_not_reached ();
4671 if (need_direct_wrapper) {
4672 mono_mb_emit_op (mb, CEE_CALL, method);
4674 mono_mb_emit_ldarg (mb, 3);
4675 mono_mb_emit_calli (mb, callsig);
4678 if (sig->ret->byref) {
4680 g_assert_not_reached ();
4684 switch (sig->ret->type) {
4685 case MONO_TYPE_VOID:
4686 if (!method->string_ctor)
4687 mono_mb_emit_byte (mb, CEE_LDNULL);
4689 case MONO_TYPE_BOOLEAN:
4690 case MONO_TYPE_CHAR:
4703 case MONO_TYPE_VALUETYPE:
4704 case MONO_TYPE_TYPEDBYREF:
4705 case MONO_TYPE_GENERICINST:
4706 /* box value types */
4707 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (sig->ret));
4709 case MONO_TYPE_STRING:
4710 case MONO_TYPE_CLASS:
4711 case MONO_TYPE_ARRAY:
4712 case MONO_TYPE_SZARRAY:
4713 case MONO_TYPE_OBJECT:
4718 g_assert_not_reached ();
4721 mono_mb_emit_stloc (mb, 0);
4723 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
4725 mono_loader_lock ();
4726 clause = mono_mempool_alloc0 (target_klass->image->mempool, sizeof (MonoExceptionClause));
4727 mono_loader_unlock ();
4728 clause->flags = MONO_EXCEPTION_CLAUSE_FILTER;
4729 clause->try_len = mono_mb_get_label (mb);
4732 clause->data.filter_offset = mono_mb_get_label (mb);
4734 mono_mb_emit_byte (mb, CEE_POP);
4735 mono_mb_emit_byte (mb, CEE_LDARG_2);
4736 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
4737 mono_mb_emit_byte (mb, CEE_PREFIX1);
4738 mono_mb_emit_byte (mb, CEE_CGT_UN);
4739 mono_mb_emit_byte (mb, CEE_PREFIX1);
4740 mono_mb_emit_byte (mb, CEE_ENDFILTER);
4742 clause->handler_offset = mono_mb_get_label (mb);
4745 /* store exception */
4746 mono_mb_emit_stloc (mb, 1);
4748 mono_mb_emit_byte (mb, CEE_LDARG_2);
4749 mono_mb_emit_ldloc (mb, 1);
4750 mono_mb_emit_byte (mb, CEE_STIND_REF);
4752 mono_mb_emit_byte (mb, CEE_LDNULL);
4753 mono_mb_emit_stloc (mb, 0);
4755 /* Check for the abort exception */
4756 mono_mb_emit_ldloc (mb, 1);
4757 mono_mb_emit_op (mb, CEE_ISINST, mono_defaults.threadabortexception_class);
4758 posna = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
4760 /* Delay the abort exception */
4761 mono_mb_emit_native_call (mb, delay_abort_sig, ves_icall_System_Threading_Thread_ResetAbort);
4763 mono_mb_patch_short_branch (mb, posna);
4764 mono_mb_emit_branch (mb, CEE_LEAVE);
4766 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
4769 mono_mb_patch_branch (mb, pos);
4770 mono_mb_emit_ldloc (mb, 0);
4771 mono_mb_emit_byte (mb, CEE_RET);
4773 if (need_direct_wrapper) {
4774 res = mono_mb_create_and_cache (cache, method, mb, csig, sig->param_count + 16);
4776 /* taken from mono_mb_create_and_cache */
4777 mono_marshal_lock ();
4778 res = g_hash_table_lookup (cache, callsig);
4779 mono_marshal_unlock ();
4781 /* Somebody may have created it before us */
4784 newm = mono_mb_create_method (mb, csig, sig->param_count + 16);
4786 mono_marshal_lock ();
4787 res = g_hash_table_lookup (cache, callsig);
4790 g_hash_table_insert (cache, callsig, res);
4791 g_hash_table_insert (wrapper_hash, res, callsig);
4793 mono_free_method (newm);
4795 mono_marshal_unlock ();
4798 /* end mono_mb_create_and_cache */
4803 header = ((MonoMethodNormal *)res)->header;
4804 header->num_clauses = 1;
4805 header->clauses = clause;
4811 mono_mb_emit_auto_layout_exception (MonoMethodBuilder *mb, MonoClass *klass)
4813 char *msg = g_strdup_printf ("The type `%s.%s' layout needs to be Sequential or Explicit",
4814 klass->name_space, klass->name);
4816 mono_mb_emit_exception_marshal_directive (mb, msg);
4820 * mono_marshal_get_ldfld_remote_wrapper:
4821 * @klass: The return type
4823 * This method generates a wrapper for calling mono_load_remote_field_new with
4824 * the appropriate return type.
4827 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
4829 MonoMethodSignature *sig, *csig;
4830 MonoMethodBuilder *mb;
4835 cache = klass->image->ldfld_remote_wrapper_cache;
4836 if ((res = mono_marshal_find_in_cache (cache, klass)))
4840 * This wrapper is similar to an icall wrapper but all the wrappers
4841 * call the same C function, but with a different signature.
4843 name = g_strdup_printf ("__mono_load_remote_field_new_wrapper_%s.%s", klass->name_space, klass->name);
4844 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD_REMOTE);
4847 mb->method->save_lmf = 1;
4849 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4850 sig->params [0] = &mono_defaults.object_class->byval_arg;
4851 sig->params [1] = &mono_defaults.int_class->byval_arg;
4852 sig->params [2] = &mono_defaults.int_class->byval_arg;
4853 sig->ret = &klass->this_arg;
4855 mono_mb_emit_ldarg (mb, 0);
4856 mono_mb_emit_ldarg (mb, 1);
4857 mono_mb_emit_ldarg (mb, 2);
4859 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4860 csig->params [0] = &mono_defaults.object_class->byval_arg;
4861 csig->params [1] = &mono_defaults.int_class->byval_arg;
4862 csig->params [2] = &mono_defaults.int_class->byval_arg;
4863 csig->ret = &klass->this_arg;
4866 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4867 emit_thread_interrupt_checkpoint (mb);
4869 mono_mb_emit_byte (mb, CEE_RET);
4871 res = mono_mb_create_and_cache (cache, klass,
4872 mb, sig, sig->param_count + 16);
4879 * mono_marshal_get_ldfld_wrapper:
4880 * @type: the type of the field
4882 * This method generates a function which can be use to load a field with type
4883 * @type from an object. The generated function has the following signature:
4884 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
4887 mono_marshal_get_ldfld_wrapper (MonoType *type)
4889 MonoMethodSignature *sig;
4890 MonoMethodBuilder *mb;
4895 int t, pos0, pos1 = 0;
4897 type = mono_type_get_underlying_type (type);
4902 if (type->type == MONO_TYPE_SZARRAY) {
4903 klass = mono_defaults.array_class;
4904 } else if (type->type == MONO_TYPE_VALUETYPE) {
4905 klass = type->data.klass;
4906 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
4907 klass = mono_defaults.object_class;
4908 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
4909 klass = mono_defaults.int_class;
4910 } else if (t == MONO_TYPE_GENERICINST) {
4911 if (mono_type_generic_inst_is_valuetype (type))
4912 klass = mono_class_from_mono_type (type);
4914 klass = mono_defaults.object_class;
4916 klass = mono_class_from_mono_type (type);
4919 klass = mono_defaults.int_class;
4922 cache = klass->image->ldfld_wrapper_cache;
4923 if ((res = mono_marshal_find_in_cache (cache, klass)))
4926 /* we add the %p pointer value of klass because class names are not unique */
4927 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
4928 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
4931 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
4932 sig->params [0] = &mono_defaults.object_class->byval_arg;
4933 sig->params [1] = &mono_defaults.int_class->byval_arg;
4934 sig->params [2] = &mono_defaults.int_class->byval_arg;
4935 sig->params [3] = &mono_defaults.int_class->byval_arg;
4936 sig->ret = &klass->byval_arg;
4938 mono_mb_emit_ldarg (mb, 0);
4939 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
4941 mono_mb_emit_ldarg (mb, 0);
4942 mono_mb_emit_ldarg (mb, 1);
4943 mono_mb_emit_ldarg (mb, 2);
4945 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
4948 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
4949 csig->params [0] = &mono_defaults.object_class->byval_arg;
4950 csig->params [1] = &mono_defaults.int_class->byval_arg;
4951 csig->params [2] = &mono_defaults.int_class->byval_arg;
4952 csig->ret = &klass->this_arg;
4955 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
4956 emit_thread_interrupt_checkpoint (mb);
4959 if (klass->valuetype) {
4960 mono_mb_emit_op (mb, CEE_UNBOX, klass);
4961 pos1 = mono_mb_emit_branch (mb, CEE_BR);
4963 mono_mb_emit_byte (mb, CEE_RET);
4967 mono_mb_patch_branch (mb, pos0);
4969 mono_mb_emit_ldarg (mb, 0);
4970 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
4971 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
4972 mono_mb_emit_ldarg (mb, 3);
4973 mono_mb_emit_byte (mb, CEE_ADD);
4975 if (klass->valuetype)
4976 mono_mb_patch_branch (mb, pos1);
4981 case MONO_TYPE_BOOLEAN:
4982 case MONO_TYPE_CHAR:
4991 case MONO_TYPE_ARRAY:
4992 case MONO_TYPE_SZARRAY:
4993 case MONO_TYPE_OBJECT:
4994 case MONO_TYPE_CLASS:
4995 case MONO_TYPE_STRING:
4999 case MONO_TYPE_FNPTR:
5000 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
5002 case MONO_TYPE_VALUETYPE:
5003 g_assert (!klass->enumtype);
5004 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5006 case MONO_TYPE_GENERICINST:
5007 if (mono_type_generic_inst_is_valuetype (type)) {
5008 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
5010 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5014 g_warning ("type %x not implemented", type->type);
5015 g_assert_not_reached ();
5018 mono_mb_emit_byte (mb, CEE_RET);
5020 res = mono_mb_create_and_cache (cache, klass,
5021 mb, sig, sig->param_count + 16);
5028 * mono_marshal_get_ldflda_wrapper:
5029 * @type: the type of the field
5031 * This method generates a function which can be used to load a field address
5032 * from an object. The generated function has the following signature:
5033 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
5036 mono_marshal_get_ldflda_wrapper (MonoType *type)
5038 MonoMethodSignature *sig;
5039 MonoMethodBuilder *mb;
5046 type = mono_type_get_underlying_type (type);
5050 if (type->type == MONO_TYPE_SZARRAY) {
5051 klass = mono_defaults.array_class;
5052 } else if (type->type == MONO_TYPE_VALUETYPE) {
5053 klass = type->data.klass;
5054 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
5055 t == MONO_TYPE_CLASS) {
5056 klass = mono_defaults.object_class;
5057 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5058 klass = mono_defaults.int_class;
5059 } else if (t == MONO_TYPE_GENERICINST) {
5060 if (mono_type_generic_inst_is_valuetype (type))
5061 klass = mono_class_from_mono_type (type);
5063 klass = mono_defaults.object_class;
5065 klass = mono_class_from_mono_type (type);
5068 klass = mono_defaults.int_class;
5071 cache = klass->image->ldflda_wrapper_cache;
5072 if ((res = mono_marshal_find_in_cache (cache, klass)))
5075 /* we add the %p pointer value of klass because class names are not unique */
5076 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5077 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
5080 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5081 sig->params [0] = &mono_defaults.object_class->byval_arg;
5082 sig->params [1] = &mono_defaults.int_class->byval_arg;
5083 sig->params [2] = &mono_defaults.int_class->byval_arg;
5084 sig->params [3] = &mono_defaults.int_class->byval_arg;
5085 sig->ret = &mono_defaults.int_class->byval_arg;
5087 mono_mb_emit_ldarg (mb, 0);
5088 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5090 /* FIXME: Only throw this if the object is in another appdomain */
5091 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
5093 mono_mb_patch_branch (mb, pos0);
5095 mono_mb_emit_ldarg (mb, 0);
5096 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5097 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5098 mono_mb_emit_ldarg (mb, 3);
5099 mono_mb_emit_byte (mb, CEE_ADD);
5101 mono_mb_emit_byte (mb, CEE_RET);
5103 res = mono_mb_create_and_cache (cache, klass,
5104 mb, sig, sig->param_count + 16);
5111 * mono_marshal_get_stfld_remote_wrapper:
5112 * klass: The type of the field
5114 * This function generates a wrapper for calling mono_store_remote_field_new
5115 * with the appropriate signature.
5118 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
5120 MonoMethodSignature *sig, *csig;
5121 MonoMethodBuilder *mb;
5126 cache = klass->image->stfld_remote_wrapper_cache;
5127 if ((res = mono_marshal_find_in_cache (cache, klass)))
5130 name = g_strdup_printf ("__mono_store_remote_field_new_wrapper_%s.%s", klass->name_space, klass->name);
5131 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD_REMOTE);
5134 mb->method->save_lmf = 1;
5136 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5137 sig->params [0] = &mono_defaults.object_class->byval_arg;
5138 sig->params [1] = &mono_defaults.int_class->byval_arg;
5139 sig->params [2] = &mono_defaults.int_class->byval_arg;
5140 sig->params [3] = &klass->byval_arg;
5141 sig->ret = &mono_defaults.void_class->byval_arg;
5143 mono_mb_emit_ldarg (mb, 0);
5144 mono_mb_emit_ldarg (mb, 1);
5145 mono_mb_emit_ldarg (mb, 2);
5146 mono_mb_emit_ldarg (mb, 3);
5148 if (klass->valuetype)
5149 mono_mb_emit_op (mb, CEE_BOX, klass);
5151 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
5152 csig->params [0] = &mono_defaults.object_class->byval_arg;
5153 csig->params [1] = &mono_defaults.int_class->byval_arg;
5154 csig->params [2] = &mono_defaults.int_class->byval_arg;
5155 csig->params [3] = &klass->byval_arg;
5156 csig->ret = &mono_defaults.void_class->byval_arg;
5159 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
5160 emit_thread_interrupt_checkpoint (mb);
5162 mono_mb_emit_byte (mb, CEE_RET);
5164 res = mono_mb_create_and_cache (cache, klass,
5165 mb, sig, sig->param_count + 16);
5172 * mono_marshal_get_stfld_wrapper:
5173 * @type: the type of the field
5175 * This method generates a function which can be use to store a field with type
5176 * @type. The generated function has the following signature:
5177 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
5180 mono_marshal_get_stfld_wrapper (MonoType *type)
5182 MonoMethodSignature *sig;
5183 MonoMethodBuilder *mb;
5190 type = mono_type_get_underlying_type (type);
5194 if (type->type == MONO_TYPE_SZARRAY) {
5195 klass = mono_defaults.array_class;
5196 } else if (type->type == MONO_TYPE_VALUETYPE) {
5197 klass = type->data.klass;
5198 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
5199 klass = mono_defaults.object_class;
5200 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
5201 klass = mono_defaults.int_class;
5202 } else if (t == MONO_TYPE_GENERICINST) {
5203 if (mono_type_generic_inst_is_valuetype (type))
5204 klass = mono_class_from_mono_type (type);
5206 klass = mono_defaults.object_class;
5208 klass = mono_class_from_mono_type (type);
5211 klass = mono_defaults.int_class;
5214 cache = klass->image->stfld_wrapper_cache;
5215 if ((res = mono_marshal_find_in_cache (cache, klass)))
5218 /* we add the %p pointer value of klass because class names are not unique */
5219 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
5220 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
5223 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
5224 sig->params [0] = &mono_defaults.object_class->byval_arg;
5225 sig->params [1] = &mono_defaults.int_class->byval_arg;
5226 sig->params [2] = &mono_defaults.int_class->byval_arg;
5227 sig->params [3] = &mono_defaults.int_class->byval_arg;
5228 sig->params [4] = &klass->byval_arg;
5229 sig->ret = &mono_defaults.void_class->byval_arg;
5231 mono_mb_emit_ldarg (mb, 0);
5232 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
5234 mono_mb_emit_ldarg (mb, 0);
5235 mono_mb_emit_ldarg (mb, 1);
5236 mono_mb_emit_ldarg (mb, 2);
5237 mono_mb_emit_ldarg (mb, 4);
5239 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
5241 mono_mb_emit_byte (mb, CEE_RET);
5243 mono_mb_patch_branch (mb, pos);
5245 mono_mb_emit_ldarg (mb, 0);
5246 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5247 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
5248 mono_mb_emit_ldarg (mb, 3);
5249 mono_mb_emit_byte (mb, CEE_ADD);
5250 mono_mb_emit_ldarg (mb, 4);
5255 case MONO_TYPE_BOOLEAN:
5256 case MONO_TYPE_CHAR:
5265 case MONO_TYPE_ARRAY:
5266 case MONO_TYPE_SZARRAY:
5267 case MONO_TYPE_OBJECT:
5268 case MONO_TYPE_CLASS:
5269 case MONO_TYPE_STRING:
5273 case MONO_TYPE_FNPTR:
5274 mono_mb_emit_byte (mb, mono_type_to_stind (type));
5276 case MONO_TYPE_VALUETYPE:
5277 g_assert (!klass->enumtype);
5278 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5280 case MONO_TYPE_GENERICINST:
5281 mono_mb_emit_op (mb, CEE_STOBJ, klass);
5284 g_warning ("type %x not implemented", type->type);
5285 g_assert_not_reached ();
5288 mono_mb_emit_byte (mb, CEE_RET);
5290 res = mono_mb_create_and_cache (cache, klass,
5291 mb, sig, sig->param_count + 16);
5298 * generates IL code for the icall wrapper (the generated method
5299 * calls the unmanaged code in func)
5302 mono_marshal_get_icall_wrapper (MonoMethodSignature *sig, const char *name, gconstpointer func, gboolean check_exceptions)
5304 MonoMethodSignature *csig;
5305 MonoMethodBuilder *mb;
5309 g_assert (sig->pinvoke);
5311 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
5313 mb->method->save_lmf = 1;
5315 /* we copy the signature, so that we can modify it */
5318 mono_mb_emit_byte (mb, CEE_LDARG_0);
5320 for (i = 0; i < sig->param_count; i++)
5321 mono_mb_emit_ldarg (mb, i + sig->hasthis);
5323 mono_mb_emit_native_call (mb, sig, (gpointer) func);
5324 if (check_exceptions)
5325 emit_thread_interrupt_checkpoint (mb);
5326 mono_mb_emit_byte (mb, CEE_RET);
5328 csig = signature_dup (mono_defaults.corlib, sig);
5330 if (csig->call_convention == MONO_CALL_VARARG)
5331 csig->call_convention = 0;
5333 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
5340 MonoMethodBuilder *mb;
5341 MonoMethodSignature *sig;
5342 MonoMethodPInvoke *piinfo;
5343 int *orig_conv_args; /* Locals containing the original values of byref args */
5345 MonoClass *retobj_class;
5346 MonoMethodSignature *csig; /* Might need to be changed due to MarshalAs directives */
5347 MonoImage *image; /* The image to use for looking up custom marshallers */
5348 } EmitMarshalContext;
5352 * This is invoked to convert arguments from the current types to
5353 * the underlying types expected by the platform routine. If required,
5354 * the methods create a temporary variable with the proper type, and return
5355 * the location for it (either the passed argument, or the newly allocated
5358 MARSHAL_ACTION_CONV_IN,
5361 * This operation is called to push the actual value that was optionally
5362 * converted on the first stage
5364 MARSHAL_ACTION_PUSH,
5367 * Convert byref arguments back or free resources allocated during the
5370 MARSHAL_ACTION_CONV_OUT,
5373 * The result from the unmanaged call is at the top of the stack when
5374 * this action is invoked. The result should be stored in the
5375 * third local variable slot.
5377 MARSHAL_ACTION_CONV_RESULT,
5379 MARSHAL_ACTION_MANAGED_CONV_IN,
5380 MARSHAL_ACTION_MANAGED_CONV_OUT,
5381 MARSHAL_ACTION_MANAGED_CONV_RESULT
5385 emit_marshal_custom (EmitMarshalContext *m, int argnum, MonoType *t,
5386 MonoMarshalSpec *spec,
5387 int conv_arg, MonoType **conv_arg_type,
5388 MarshalAction action)
5392 static MonoClass *ICustomMarshaler = NULL;
5393 static MonoMethod *cleanup_native, *cleanup_managed;
5394 static MonoMethod *marshal_managed_to_native, *marshal_native_to_managed;
5395 MonoMethod *get_instance;
5396 MonoMethodBuilder *mb = m->mb;
5397 char *exception_msg = NULL;
5401 if (!ICustomMarshaler) {
5402 ICustomMarshaler = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ICustomMarshaler");
5403 g_assert (ICustomMarshaler);
5405 cleanup_native = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpNativeData", 1);
5406 g_assert (cleanup_native);
5407 cleanup_managed = mono_class_get_method_from_name (ICustomMarshaler, "CleanUpManagedData", 1);
5408 g_assert (cleanup_managed);
5409 marshal_managed_to_native = mono_class_get_method_from_name (ICustomMarshaler, "MarshalManagedToNative", 1);
5410 g_assert (marshal_managed_to_native);
5411 marshal_native_to_managed = mono_class_get_method_from_name (ICustomMarshaler, "MarshalNativeToManaged", 1);
5412 g_assert (marshal_native_to_managed);
5415 mtype = mono_reflection_type_from_name (spec->data.custom_data.custom_name, m->image);
5416 g_assert (mtype != NULL);
5417 mklass = mono_class_from_mono_type (mtype);
5418 g_assert (mklass != NULL);
5420 if (!mono_class_is_assignable_from (ICustomMarshaler, mklass))
5421 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement the ICustomMarshaler interface.", mklass->name);
5423 get_instance = mono_class_get_method_from_name_flags (mklass, "GetInstance", 1, METHOD_ATTRIBUTE_STATIC);
5425 MonoMethodSignature *get_sig = mono_method_signature (get_instance);
5426 if ((get_sig->ret->type != MONO_TYPE_CLASS) ||
5427 (mono_class_from_mono_type (get_sig->ret) != ICustomMarshaler) ||
5428 (get_sig->params [0]->type != MONO_TYPE_STRING))
5429 get_instance = NULL;
5433 exception_msg = g_strdup_printf ("Custom marshaler '%s' does not implement a static GetInstance method that takes a single string parameter and returns an ICustomMarshaler.", mklass->name);
5435 /* Throw exception and emit compensation code if neccesary */
5436 if (exception_msg) {
5438 case MARSHAL_ACTION_CONV_IN:
5439 case MARSHAL_ACTION_CONV_RESULT:
5440 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5441 if ((action == MARSHAL_ACTION_CONV_RESULT) || (action == MARSHAL_ACTION_MANAGED_CONV_RESULT))
5442 mono_mb_emit_byte (mb, CEE_POP);
5444 mono_mb_emit_exception_full (mb, "System", "ApplicationException", exception_msg);
5445 g_free (exception_msg);
5448 case MARSHAL_ACTION_PUSH:
5449 mono_mb_emit_byte (mb, CEE_LDNULL);
5457 /* FIXME: MS.NET seems to create one instance for each klass + cookie pair */
5458 /* FIXME: MS.NET throws an exception if GetInstance returns null */
5461 case MARSHAL_ACTION_CONV_IN:
5463 case MONO_TYPE_CLASS:
5464 case MONO_TYPE_OBJECT:
5465 case MONO_TYPE_STRING:
5466 case MONO_TYPE_ARRAY:
5467 case MONO_TYPE_SZARRAY:
5468 case MONO_TYPE_VALUETYPE:
5472 g_warning ("custom marshalling of type %x is currently not supported", t->type);
5473 g_assert_not_reached ();
5477 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5479 mono_mb_emit_byte (mb, CEE_LDNULL);
5480 mono_mb_emit_stloc (mb, conv_arg);
5482 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT))
5485 /* Minic MS.NET behavior */
5486 if (!t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT) && !(t->attrs & PARAM_ATTRIBUTE_IN))
5489 /* Check for null */
5490 mono_mb_emit_ldarg (mb, argnum);
5492 mono_mb_emit_byte (mb, CEE_LDIND_I);
5493 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5495 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5497 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5499 mono_mb_emit_ldarg (mb, argnum);
5501 mono_mb_emit_byte (mb, CEE_LDIND_REF);
5503 if (t->type == MONO_TYPE_VALUETYPE) {
5505 * Since we can't determine the type of the argument, we
5506 * will assume the unmanaged function takes a pointer.
5508 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5510 mono_mb_emit_op (mb, CEE_BOX, mono_class_from_mono_type (t));
5513 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5514 mono_mb_emit_stloc (mb, conv_arg);
5516 mono_mb_patch_branch (mb, pos2);
5519 case MARSHAL_ACTION_CONV_OUT:
5520 /* Check for null */
5521 mono_mb_emit_ldloc (mb, conv_arg);
5522 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5525 mono_mb_emit_ldarg (mb, argnum);
5527 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5529 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5531 mono_mb_emit_ldloc (mb, conv_arg);
5532 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5533 mono_mb_emit_byte (mb, CEE_STIND_REF);
5534 } else if (t->attrs &PARAM_ATTRIBUTE_OUT) {
5535 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5537 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5539 mono_mb_emit_ldloc (mb, conv_arg);
5540 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5542 /* We have nowhere to store the result */
5543 mono_mb_emit_byte (mb, CEE_POP);
5546 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5548 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5550 mono_mb_emit_ldloc (mb, conv_arg);
5552 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5554 mono_mb_patch_branch (mb, pos2);
5557 case MARSHAL_ACTION_PUSH:
5559 mono_mb_emit_ldloc_addr (mb, conv_arg);
5561 mono_mb_emit_ldloc (mb, conv_arg);
5564 case MARSHAL_ACTION_CONV_RESULT:
5565 loc1 = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5567 mono_mb_emit_stloc (mb, 3);
5569 mono_mb_emit_ldloc (mb, 3);
5570 mono_mb_emit_stloc (mb, loc1);
5572 /* Check for null */
5573 mono_mb_emit_ldloc (mb, 3);
5574 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5576 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5578 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5579 mono_mb_emit_byte (mb, CEE_DUP);
5581 mono_mb_emit_ldloc (mb, 3);
5582 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5583 mono_mb_emit_stloc (mb, 3);
5585 mono_mb_emit_ldloc (mb, loc1);
5586 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_native);
5588 mono_mb_patch_branch (mb, pos2);
5591 case MARSHAL_ACTION_MANAGED_CONV_IN:
5592 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5594 mono_mb_emit_byte (mb, CEE_LDNULL);
5595 mono_mb_emit_stloc (mb, conv_arg);
5597 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
5600 /* Check for null */
5601 mono_mb_emit_ldarg (mb, argnum);
5603 mono_mb_emit_byte (mb, CEE_LDIND_I);
5604 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5606 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5607 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5609 mono_mb_emit_ldarg (mb, argnum);
5611 mono_mb_emit_byte (mb, CEE_LDIND_I);
5613 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_native_to_managed);
5614 mono_mb_emit_stloc (mb, conv_arg);
5616 mono_mb_patch_branch (mb, pos2);
5619 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5620 g_assert (!t->byref);
5622 loc1 = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
5624 mono_mb_emit_stloc (mb, 3);
5626 mono_mb_emit_ldloc (mb, 3);
5627 mono_mb_emit_stloc (mb, loc1);
5629 /* Check for null */
5630 mono_mb_emit_ldloc (mb, 3);
5631 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5633 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5634 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5635 mono_mb_emit_byte (mb, CEE_DUP);
5637 mono_mb_emit_ldloc (mb, 3);
5638 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5639 mono_mb_emit_stloc (mb, 3);
5641 mono_mb_emit_ldloc (mb, loc1);
5642 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5644 mono_mb_patch_branch (mb, pos2);
5647 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5649 /* Check for null */
5650 mono_mb_emit_ldloc (mb, conv_arg);
5651 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5654 mono_mb_emit_ldarg (mb, argnum);
5656 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5658 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5660 mono_mb_emit_ldloc (mb, conv_arg);
5661 mono_mb_emit_op (mb, CEE_CALLVIRT, marshal_managed_to_native);
5662 mono_mb_emit_byte (mb, CEE_STIND_I);
5665 /* Call CleanUpManagedData */
5666 mono_mb_emit_ldstr (mb, g_strdup (spec->data.custom_data.cookie));
5668 mono_mb_emit_op (mb, CEE_CALL, get_instance);
5670 mono_mb_emit_ldloc (mb, conv_arg);
5671 mono_mb_emit_op (mb, CEE_CALLVIRT, cleanup_managed);
5673 mono_mb_patch_branch (mb, pos2);
5677 g_assert_not_reached ();
5684 emit_marshal_asany (EmitMarshalContext *m, int argnum, MonoType *t,
5685 MonoMarshalSpec *spec,
5686 int conv_arg, MonoType **conv_arg_type,
5687 MarshalAction action)
5689 MonoMethodBuilder *mb = m->mb;
5692 case MARSHAL_ACTION_CONV_IN: {
5693 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5695 g_assert (t->type == MONO_TYPE_OBJECT);
5696 g_assert (!t->byref);
5698 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5699 mono_mb_emit_ldarg (mb, argnum);
5700 mono_mb_emit_icon (mb, encoding);
5701 mono_mb_emit_icon (mb, t->attrs);
5702 mono_mb_emit_icall (mb, mono_marshal_asany);
5703 mono_mb_emit_stloc (mb, conv_arg);
5707 case MARSHAL_ACTION_PUSH:
5708 mono_mb_emit_ldloc (mb, conv_arg);
5711 case MARSHAL_ACTION_CONV_OUT: {
5712 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, NULL);
5714 mono_mb_emit_ldarg (mb, argnum);
5715 mono_mb_emit_ldloc (mb, conv_arg);
5716 mono_mb_emit_icon (mb, encoding);
5717 mono_mb_emit_icon (mb, t->attrs);
5718 mono_mb_emit_icall (mb, mono_marshal_free_asany);
5723 g_assert_not_reached ();
5730 emit_marshal_vtype (EmitMarshalContext *m, int argnum, MonoType *t,
5731 MonoMarshalSpec *spec,
5732 int conv_arg, MonoType **conv_arg_type,
5733 MarshalAction action)
5735 MonoMethodBuilder *mb = m->mb;
5739 klass = t->data.klass;
5742 case MARSHAL_ACTION_CONV_IN:
5743 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5744 klass->blittable || klass->enumtype)
5747 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5749 /* store the address of the source into local variable 0 */
5751 mono_mb_emit_ldarg (mb, argnum);
5753 mono_mb_emit_ldarg_addr (mb, argnum);
5755 mono_mb_emit_stloc (mb, 0);
5757 /* allocate space for the native struct and
5758 * store the address into local variable 1 (dest) */
5759 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5760 mono_mb_emit_byte (mb, CEE_PREFIX1);
5761 mono_mb_emit_byte (mb, CEE_LOCALLOC);
5762 mono_mb_emit_stloc (mb, conv_arg);
5765 mono_mb_emit_ldloc (mb, 0);
5766 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5769 if (!(t->byref && !(t->attrs & PARAM_ATTRIBUTE_IN) && (t->attrs & PARAM_ATTRIBUTE_OUT))) {
5771 mono_mb_emit_ldloc (mb, conv_arg);
5772 mono_mb_emit_stloc (mb, 1);
5774 /* emit valuetype conversion code */
5775 emit_struct_conv (mb, klass, FALSE);
5779 mono_mb_patch_branch (mb, pos);
5782 case MARSHAL_ACTION_PUSH:
5783 if (spec && spec->native == MONO_NATIVE_LPSTRUCT) {
5785 g_assert (!t->byref);
5787 /* Have to change the signature since the vtype is passed byref */
5788 m->csig->params [argnum - m->csig->hasthis] = &mono_defaults.int_class->byval_arg;
5790 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5791 klass->blittable || klass->enumtype)
5792 mono_mb_emit_ldarg_addr (mb, argnum);
5794 mono_mb_emit_ldloc (mb, conv_arg);
5798 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5799 klass->blittable || klass->enumtype) {
5800 mono_mb_emit_ldarg (mb, argnum);
5803 mono_mb_emit_ldloc (mb, conv_arg);
5805 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5806 mono_mb_emit_op (mb, CEE_MONO_LDNATIVEOBJ, klass);
5810 case MARSHAL_ACTION_CONV_OUT:
5811 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5812 klass->blittable || klass->enumtype)
5816 /* dst = argument */
5817 mono_mb_emit_ldarg (mb, argnum);
5818 mono_mb_emit_stloc (mb, 1);
5820 mono_mb_emit_ldloc (mb, 1);
5821 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5823 if (!((t->attrs & PARAM_ATTRIBUTE_IN) && !(t->attrs & PARAM_ATTRIBUTE_OUT))) {
5824 /* src = tmp_locals [i] */
5825 mono_mb_emit_ldloc (mb, conv_arg);
5826 mono_mb_emit_stloc (mb, 0);
5828 /* emit valuetype conversion code */
5829 emit_struct_conv (mb, klass, TRUE);
5833 emit_struct_free (mb, klass, conv_arg);
5836 mono_mb_patch_branch (mb, pos);
5839 case MARSHAL_ACTION_CONV_RESULT:
5840 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5842 mono_mb_emit_stloc (mb, 3);
5845 /* load pointer to returned value type */
5846 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5847 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5848 /* store the address of the source into local variable 0 */
5849 mono_mb_emit_stloc (mb, 0);
5851 mono_mb_emit_ldloc_addr (mb, 3);
5852 mono_mb_emit_stloc (mb, 1);
5854 /* emit valuetype conversion code */
5855 emit_struct_conv (mb, klass, TRUE);
5858 case MARSHAL_ACTION_MANAGED_CONV_IN:
5859 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5860 klass->blittable || klass->enumtype) {
5865 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
5867 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5871 mono_mb_emit_ldarg (mb, argnum);
5873 mono_mb_emit_ldarg_addr (mb, argnum);
5874 mono_mb_emit_stloc (mb, 0);
5877 mono_mb_emit_ldloc (mb, 0);
5878 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
5881 mono_mb_emit_ldloc_addr (mb, conv_arg);
5882 mono_mb_emit_stloc (mb, 1);
5884 /* emit valuetype conversion code */
5885 emit_struct_conv (mb, klass, TRUE);
5888 mono_mb_patch_branch (mb, pos);
5891 case MARSHAL_ACTION_MANAGED_CONV_OUT:
5892 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5893 klass->blittable || klass->enumtype) {
5897 /* Check for null */
5898 mono_mb_emit_ldarg (mb, argnum);
5899 pos2 = mono_mb_emit_branch (mb, CEE_BRFALSE);
5902 mono_mb_emit_ldloc_addr (mb, conv_arg);
5903 mono_mb_emit_stloc (mb, 0);
5906 mono_mb_emit_ldarg (mb, argnum);
5907 mono_mb_emit_stloc (mb, 1);
5909 /* emit valuetype conversion code */
5910 emit_struct_conv (mb, klass, FALSE);
5912 mono_mb_patch_branch (mb, pos2);
5915 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
5916 if (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
5917 klass->blittable || klass->enumtype) {
5918 mono_mb_emit_stloc (mb, 3);
5923 /* load pointer to returned value type */
5924 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
5925 mono_mb_emit_byte (mb, CEE_MONO_VTADDR);
5927 /* store the address of the source into local variable 0 */
5928 mono_mb_emit_stloc (mb, 0);
5929 /* allocate space for the native struct and
5930 * store the address into dst_ptr */
5931 m->retobj_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5932 m->retobj_class = klass;
5933 g_assert (m->retobj_var);
5934 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
5935 mono_mb_emit_byte (mb, CEE_CONV_I);
5936 mono_mb_emit_icall (mb, mono_marshal_alloc);
5937 mono_mb_emit_stloc (mb, 1);
5938 mono_mb_emit_ldloc (mb, 1);
5939 mono_mb_emit_stloc (mb, m->retobj_var);
5941 /* emit valuetype conversion code */
5942 emit_struct_conv (mb, klass, FALSE);
5946 g_assert_not_reached ();
5953 emit_marshal_string (EmitMarshalContext *m, int argnum, MonoType *t,
5954 MonoMarshalSpec *spec,
5955 int conv_arg, MonoType **conv_arg_type,
5956 MarshalAction action)
5958 MonoMethodBuilder *mb = m->mb;
5959 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
5960 MonoMarshalConv conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
5964 case MARSHAL_ACTION_CONV_IN:
5965 *conv_arg_type = &mono_defaults.int_class->byval_arg;
5966 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
5969 if (t->attrs & PARAM_ATTRIBUTE_OUT)
5972 mono_mb_emit_ldarg (mb, argnum);
5973 mono_mb_emit_byte (mb, CEE_LDIND_I);
5975 mono_mb_emit_ldarg (mb, argnum);
5979 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
5980 MonoException *exc = mono_get_exception_not_implemented (msg);
5983 mono_raise_exception (exc);
5986 mono_mb_emit_icall (mb, conv_to_icall (conv));
5988 mono_mb_emit_stloc (mb, conv_arg);
5991 case MARSHAL_ACTION_CONV_OUT:
5992 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
5993 mono_mb_emit_ldarg (mb, argnum);
5994 mono_mb_emit_ldloc (mb, conv_arg);
5995 if (conv == MONO_MARSHAL_CONV_STR_BSTR) {
5996 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_BSTR_STR));
5997 // BSTRs always need freed
5998 mono_mb_emit_ldloc (mb, conv_arg);
5999 mono_mb_emit_icall (mb, mono_free_bstr);
6002 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_LPSTR_STR));
6003 mono_mb_emit_byte (mb, CEE_STIND_REF);
6005 if (mono_marshal_need_free (t, m->piinfo, spec)) {
6006 mono_mb_emit_ldloc (mb, conv_arg);
6007 if (conv == MONO_MARSHAL_CONV_STR_BSTR)
6008 mono_mb_emit_icall (mb, mono_free_bstr);
6010 mono_mb_emit_icall (mb, mono_marshal_free);
6015 case MARSHAL_ACTION_PUSH:
6017 mono_mb_emit_ldloc_addr (mb, conv_arg);
6019 mono_mb_emit_ldloc (mb, conv_arg);
6022 case MARSHAL_ACTION_CONV_RESULT:
6023 mono_mb_emit_stloc (mb, 0);
6025 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6027 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6028 mono_mb_emit_exception_marshal_directive (mb, msg);
6032 mono_mb_emit_ldloc (mb, 0);
6033 mono_mb_emit_icall (mb, conv_to_icall (conv));
6034 mono_mb_emit_stloc (mb, 3);
6036 /* free the string */
6037 mono_mb_emit_ldloc (mb, 0);
6038 if (conv == MONO_MARSHAL_CONV_BSTR_STR)
6039 mono_mb_emit_icall (mb, mono_free_bstr);
6041 mono_mb_emit_icall (mb, g_free);
6044 case MARSHAL_ACTION_MANAGED_CONV_IN:
6050 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6051 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6053 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
6055 char *msg = g_strdup_printf ("string marshalling conversion %d not implemented", encoding);
6056 mono_mb_emit_exception_marshal_directive (mb, msg);
6060 mono_mb_emit_ldarg (mb, argnum);
6061 mono_mb_emit_icall (mb, conv_to_icall (conv));
6062 mono_mb_emit_stloc (mb, conv_arg);
6065 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6066 if (conv_to_icall (conv) == mono_marshal_string_to_utf16)
6067 /* We need to make a copy so the caller is able to free it */
6068 mono_mb_emit_icall (mb, mono_marshal_string_to_utf16_copy);
6070 mono_mb_emit_icall (mb, conv_to_icall (conv));
6071 mono_mb_emit_stloc (mb, 3);
6075 g_assert_not_reached ();
6082 emit_marshal_safehandle (EmitMarshalContext *m, int argnum, MonoType *t,
6083 MonoMarshalSpec *spec, int conv_arg,
6084 MonoType **conv_arg_type, MarshalAction action)
6086 MonoMethodBuilder *mb = m->mb;
6089 case MARSHAL_ACTION_CONV_IN: {
6090 MonoType *intptr_type;
6091 int dar_release_slot, pos;
6093 intptr_type = &mono_defaults.int_class->byval_arg;
6094 conv_arg = mono_mb_add_local (mb, intptr_type);
6095 *conv_arg_type = intptr_type;
6097 if (!sh_dangerous_add_ref)
6098 init_safe_handle ();
6100 mono_mb_emit_ldarg (mb, argnum);
6101 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6102 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6104 mono_mb_patch_branch (mb, pos);
6107 * My tests in show that ref SafeHandles are not really
6108 * passed as ref objects. Instead a NULL is passed as the
6111 mono_mb_emit_icon (mb, 0);
6112 mono_mb_emit_stloc (mb, conv_arg);
6116 /* Create local to hold the ref parameter to DangerousAddRef */
6117 dar_release_slot = mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
6119 /* set release = false; */
6120 mono_mb_emit_icon (mb, 0);
6121 mono_mb_emit_stloc (mb, dar_release_slot);
6123 /* safehandle.DangerousAddRef (ref release) */
6124 mono_mb_emit_ldarg (mb, argnum);
6125 mono_mb_emit_ldloc_addr (mb, dar_release_slot);
6126 mono_mb_emit_managed_call (mb, sh_dangerous_add_ref, NULL);
6128 /* Pull the handle field from SafeHandle */
6129 mono_mb_emit_ldarg (mb, argnum);
6130 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6131 mono_mb_emit_byte (mb, CEE_LDIND_I);
6132 mono_mb_emit_stloc (mb, conv_arg);
6137 case MARSHAL_ACTION_PUSH:
6139 mono_mb_emit_ldloc_addr (mb, conv_arg);
6141 mono_mb_emit_ldloc (mb, conv_arg);
6144 case MARSHAL_ACTION_CONV_OUT: {
6145 /* The slot for the boolean is the next temporary created after conv_arg, see the CONV_IN code */
6146 int dar_release_slot = conv_arg + 1;
6149 if (!sh_dangerous_release)
6150 init_safe_handle ();
6156 * My tests indicate that ref SafeHandles parameters are not actually
6157 * passed by ref, but instead a new Handle is created regardless of
6158 * whether a change happens in the unmanaged side.
6160 * Also, the Handle is created before calling into unmanaged code,
6161 * but we do not support that mechanism (getting to the original
6162 * handle) and it makes no difference where we create this
6164 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6166 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6169 /* refval = new SafeHandleDerived ()*/
6170 mono_mb_emit_ldarg (mb, argnum);
6171 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6172 mono_mb_emit_byte (mb, CEE_STIND_REF);
6174 /* refval.handle = returned_handle */
6175 mono_mb_emit_ldarg (mb, argnum);
6176 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6177 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6178 mono_mb_emit_ldloc (mb, conv_arg);
6179 mono_mb_emit_byte (mb, CEE_STIND_I);
6181 mono_mb_emit_ldloc (mb, dar_release_slot);
6182 label_next = mono_mb_emit_branch (mb, CEE_BRFALSE);
6183 mono_mb_emit_ldarg (mb, argnum);
6184 mono_mb_emit_managed_call (mb, sh_dangerous_release, NULL);
6185 mono_mb_patch_branch (mb, label_next);
6190 case MARSHAL_ACTION_CONV_RESULT: {
6191 MonoMethod *ctor = NULL;
6192 int intptr_handle_slot;
6194 if (t->data.klass->flags & TYPE_ATTRIBUTE_ABSTRACT){
6195 mono_mb_emit_byte (mb, CEE_POP);
6196 mono_mb_emit_exception_marshal_directive (mb, "Returned SafeHandles should not be abstract");
6200 ctor = mono_class_get_method_from_name (t->data.klass, ".ctor", 0);
6202 mono_mb_emit_byte (mb, CEE_POP);
6203 mono_mb_emit_exception (mb, "MissingMethodException", "paramterless constructor required");
6206 /* Store the IntPtr results into a local */
6207 intptr_handle_slot = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6208 mono_mb_emit_stloc (mb, intptr_handle_slot);
6210 /* Create return value */
6211 mono_mb_emit_op (mb, CEE_NEWOBJ, ctor);
6212 mono_mb_emit_stloc (mb, 3);
6214 /* Set the return.handle to the value, am using ldflda, not sure if thats a good idea */
6215 mono_mb_emit_ldloc (mb, 3);
6216 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoSafeHandle, handle));
6217 mono_mb_emit_ldloc (mb, intptr_handle_slot);
6218 mono_mb_emit_byte (mb, CEE_STIND_I);
6222 case MARSHAL_ACTION_MANAGED_CONV_IN:
6223 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6226 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6227 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6230 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6231 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6234 printf ("Unhandled case for MarshalAction: %d\n", action);
6241 emit_marshal_handleref (EmitMarshalContext *m, int argnum, MonoType *t,
6242 MonoMarshalSpec *spec, int conv_arg,
6243 MonoType **conv_arg_type, MarshalAction action)
6245 MonoMethodBuilder *mb = m->mb;
6248 case MARSHAL_ACTION_CONV_IN: {
6249 MonoType *intptr_type;
6251 intptr_type = &mono_defaults.int_class->byval_arg;
6252 conv_arg = mono_mb_add_local (mb, intptr_type);
6253 *conv_arg_type = intptr_type;
6256 mono_mb_emit_exception_marshal_directive (mb,
6257 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6260 mono_mb_emit_ldarg_addr (mb, argnum);
6261 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoHandleRef, handle));
6262 mono_mb_emit_byte (mb, CEE_ADD);
6263 mono_mb_emit_byte (mb, CEE_LDIND_I);
6264 mono_mb_emit_stloc (mb, conv_arg);
6268 case MARSHAL_ACTION_PUSH:
6269 mono_mb_emit_ldloc (mb, conv_arg);
6272 case MARSHAL_ACTION_CONV_OUT: {
6273 /* no resource release required */
6277 case MARSHAL_ACTION_CONV_RESULT: {
6278 mono_mb_emit_exception_marshal_directive (mb,
6279 "HandleRefs can not be returned from unmanaged code (or passed by ref)");
6283 case MARSHAL_ACTION_MANAGED_CONV_IN:
6284 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_IN\n");
6287 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6288 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_OUT\n");
6291 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6292 fprintf (stderr, "mono/marshal: SafeHandles missing MANAGED_CONV_RESULT\n");
6295 fprintf (stderr, "Unhandled case for MarshalAction: %d\n", action);
6302 emit_marshal_object (EmitMarshalContext *m, int argnum, MonoType *t,
6303 MonoMarshalSpec *spec,
6304 int conv_arg, MonoType **conv_arg_type,
6305 MarshalAction action)
6307 MonoMethodBuilder *mb = m->mb;
6308 MonoClass *klass = t->data.klass;
6311 if (mono_class_from_mono_type (t) == mono_defaults.object_class) {
6312 mono_raise_exception (mono_get_exception_not_implemented ("Marshalling of type object is not implemented"));
6316 case MARSHAL_ACTION_CONV_IN:
6317 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6318 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6320 m->orig_conv_args [argnum] = 0;
6322 if (klass->delegate) {
6323 if (t->byref && !(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6324 char *msg = g_strdup_printf ("Byref marshalling of delegates is not implemented.");
6325 mono_mb_emit_exception_marshal_directive (mb, msg);
6327 mono_mb_emit_ldarg (mb, argnum);
6328 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6329 mono_mb_emit_stloc (mb, conv_arg);
6331 } else if (klass == mono_defaults.stringbuilder_class) {
6332 MonoMarshalNative encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6333 MonoMarshalConv conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
6335 g_assert (!t->byref);
6336 mono_mb_emit_ldarg (mb, argnum);
6339 mono_mb_emit_icall (mb, conv_to_icall (conv));
6341 char *msg = g_strdup_printf ("stringbuilder marshalling conversion %d not implemented", encoding);
6342 MonoException *exc = mono_get_exception_not_implemented (msg);
6345 mono_raise_exception (exc);
6348 mono_mb_emit_stloc (mb, conv_arg);
6349 } else if (klass->blittable) {
6350 mono_mb_emit_byte (mb, CEE_LDNULL);
6351 mono_mb_emit_stloc (mb, conv_arg);
6353 mono_mb_emit_ldarg (mb, argnum);
6354 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6356 mono_mb_emit_ldarg (mb, argnum);
6357 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6358 mono_mb_emit_stloc (mb, conv_arg);
6360 mono_mb_patch_branch (mb, pos);
6363 mono_mb_emit_byte (mb, CEE_LDNULL);
6364 mono_mb_emit_stloc (mb, conv_arg);
6367 /* we dont need any conversions for out parameters */
6368 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6371 mono_mb_emit_ldarg (mb, argnum);
6372 mono_mb_emit_byte (mb, CEE_LDIND_I);
6375 mono_mb_emit_ldarg (mb, argnum);
6376 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6377 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
6380 /* store the address of the source into local variable 0 */
6381 mono_mb_emit_stloc (mb, 0);
6382 mono_mb_emit_ldloc (mb, 0);
6383 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6385 /* allocate space for the native struct and store the address */
6386 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6387 mono_mb_emit_byte (mb, CEE_PREFIX1);
6388 mono_mb_emit_byte (mb, CEE_LOCALLOC);
6389 mono_mb_emit_stloc (mb, conv_arg);
6392 /* Need to store the original buffer so we can free it later */
6393 m->orig_conv_args [argnum] = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6394 mono_mb_emit_ldloc (mb, conv_arg);
6395 mono_mb_emit_stloc (mb, m->orig_conv_args [argnum]);
6398 /* set the src_ptr */
6399 mono_mb_emit_ldloc (mb, 0);
6400 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6401 mono_mb_emit_stloc (mb, 0);
6404 mono_mb_emit_ldloc (mb, conv_arg);
6405 mono_mb_emit_stloc (mb, 1);
6407 /* emit valuetype conversion code */
6408 emit_struct_conv (mb, klass, FALSE);
6410 mono_mb_patch_branch (mb, pos);
6414 case MARSHAL_ACTION_CONV_OUT:
6415 if (klass == mono_defaults.stringbuilder_class) {
6417 MonoMarshalNative encoding;
6418 MonoMarshalConv conv;
6420 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
6421 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
6423 g_assert (!t->byref);
6424 g_assert (encoding != -1);
6426 mono_mb_emit_ldarg (mb, argnum);
6427 mono_mb_emit_ldloc (mb, conv_arg);
6429 mono_mb_emit_icall (mb, conv_to_icall (conv));
6432 mono_mb_emit_ldloc (mb, conv_arg);
6433 mono_mb_emit_icall (mb, mono_marshal_free);
6438 if (klass->delegate) {
6440 mono_mb_emit_ldarg (mb, argnum);
6441 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6442 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6443 mono_mb_emit_ldloc (mb, conv_arg);
6444 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6445 mono_mb_emit_byte (mb, CEE_STIND_REF);
6450 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6451 /* allocate a new object */
6452 mono_mb_emit_ldarg (mb, argnum);
6453 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6454 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, t->data.klass);
6455 mono_mb_emit_byte (mb, CEE_STIND_REF);
6458 /* dst = *argument */
6459 mono_mb_emit_ldarg (mb, argnum);
6462 mono_mb_emit_byte (mb, CEE_LDIND_I);
6464 mono_mb_emit_stloc (mb, 1);
6466 mono_mb_emit_ldloc (mb, 1);
6467 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6469 if (t->byref || (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6470 mono_mb_emit_ldloc (mb, 1);
6471 mono_mb_emit_icon (mb, sizeof (MonoObject));
6472 mono_mb_emit_byte (mb, CEE_ADD);
6473 mono_mb_emit_stloc (mb, 1);
6475 /* src = tmp_locals [i] */
6476 mono_mb_emit_ldloc (mb, conv_arg);
6477 mono_mb_emit_stloc (mb, 0);
6479 /* emit valuetype conversion code */
6480 emit_struct_conv (mb, t->data.klass, TRUE);
6482 /* Free the structure returned by the native code */
6483 emit_struct_free (mb, klass, conv_arg);
6485 if (m->orig_conv_args [argnum]) {
6487 * If the native function changed the pointer, then free
6488 * the original structure plus the new pointer.
6490 mono_mb_emit_ldloc (mb, m->orig_conv_args [argnum]);
6491 mono_mb_emit_ldloc (mb, conv_arg);
6492 pos2 = mono_mb_emit_branch (mb, CEE_BEQ);
6494 if (!(t->attrs & PARAM_ATTRIBUTE_OUT)) {
6495 g_assert (m->orig_conv_args [argnum]);
6497 emit_struct_free (mb, klass, m->orig_conv_args [argnum]);
6500 mono_mb_emit_ldloc (mb, conv_arg);
6501 mono_mb_emit_icall (mb, g_free);
6503 mono_mb_patch_branch (mb, pos2);
6507 /* Free the original structure passed to native code */
6508 emit_struct_free (mb, klass, conv_arg);
6510 mono_mb_patch_branch (mb, pos);
6513 case MARSHAL_ACTION_PUSH:
6515 mono_mb_emit_ldloc_addr (mb, conv_arg);
6517 mono_mb_emit_ldloc (mb, conv_arg);
6520 case MARSHAL_ACTION_CONV_RESULT:
6521 if (klass->delegate) {
6522 g_assert (!t->byref);
6523 mono_mb_emit_stloc (mb, 0);
6524 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6525 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6526 mono_mb_emit_ldloc (mb, 0);
6527 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6528 mono_mb_emit_stloc (mb, 3);
6531 mono_mb_emit_stloc (mb, 0);
6533 /* Make a copy since emit_conv modifies local 0 */
6534 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6535 mono_mb_emit_ldloc (mb, 0);
6536 mono_mb_emit_stloc (mb, loc);
6538 mono_mb_emit_byte (mb, CEE_LDNULL);
6539 mono_mb_emit_stloc (mb, 3);
6541 mono_mb_emit_ldloc (mb, 0);
6542 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6544 /* allocate result object */
6546 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6547 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6548 mono_mb_emit_stloc (mb, 3);
6552 mono_mb_emit_ldloc (mb, 3);
6553 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6554 mono_mb_emit_stloc (mb, 1);
6556 /* emit conversion code */
6557 emit_struct_conv (mb, klass, TRUE);
6559 emit_struct_free (mb, klass, loc);
6561 /* Free the pointer allocated by unmanaged code */
6562 mono_mb_emit_ldloc (mb, loc);
6563 mono_mb_emit_icall (mb, g_free);
6564 mono_mb_patch_branch (mb, pos);
6568 case MARSHAL_ACTION_MANAGED_CONV_IN:
6569 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6571 if (klass->delegate) {
6572 g_assert (!t->byref);
6573 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6574 mono_mb_emit_op (mb, CEE_MONO_CLASSCONST, klass);
6575 mono_mb_emit_ldarg (mb, argnum);
6576 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_FTN_DEL));
6577 mono_mb_emit_stloc (mb, conv_arg);
6581 /* The class can not have an automatic layout */
6582 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6583 mono_mb_emit_auto_layout_exception (mb, klass);
6587 if (t->attrs & PARAM_ATTRIBUTE_OUT) {
6588 mono_mb_emit_byte (mb, CEE_LDNULL);
6589 mono_mb_emit_stloc (mb, conv_arg);
6594 mono_mb_emit_ldarg (mb, argnum);
6598 /* Check for NULL and raise an exception */
6599 pos2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
6601 mono_mb_emit_exception (mb, "ArgumentNullException", NULL);
6603 mono_mb_patch_branch (mb, pos2);
6604 mono_mb_emit_ldarg (mb, argnum);
6605 mono_mb_emit_byte (mb, CEE_LDIND_I);
6608 mono_mb_emit_stloc (mb, 0);
6610 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6611 mono_mb_emit_stloc (mb, conv_arg);
6613 mono_mb_emit_ldloc (mb, 0);
6614 pos = mono_mb_emit_branch (mb, CEE_BRFALSE);
6616 /* Create and set dst */
6617 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
6618 mono_mb_emit_op (mb, CEE_MONO_NEWOBJ, klass);
6619 mono_mb_emit_stloc (mb, conv_arg);
6620 mono_mb_emit_ldloc (mb, conv_arg);
6621 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6622 mono_mb_emit_stloc (mb, 1);
6624 /* emit valuetype conversion code */
6625 emit_struct_conv (mb, klass, TRUE);
6627 mono_mb_patch_branch (mb, pos);
6630 case MARSHAL_ACTION_MANAGED_CONV_OUT:
6632 /* Check for null */
6633 mono_mb_emit_ldloc (mb, conv_arg);
6634 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6635 mono_mb_emit_ldarg (mb, argnum);
6636 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
6637 mono_mb_emit_byte (mb, CEE_STIND_REF);
6638 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6640 mono_mb_patch_branch (mb, pos);
6643 mono_mb_emit_ldloc (mb, conv_arg);
6644 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6645 mono_mb_emit_stloc (mb, 0);
6647 /* Allocate and set dest */
6648 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6649 mono_mb_emit_byte (mb, CEE_CONV_I);
6650 mono_mb_emit_icall (mb, mono_marshal_alloc);
6651 mono_mb_emit_stloc (mb, 1);
6653 /* Update argument pointer */
6654 mono_mb_emit_ldarg (mb, argnum);
6655 mono_mb_emit_ldloc (mb, 1);
6656 mono_mb_emit_byte (mb, CEE_STIND_I);
6658 /* emit valuetype conversion code */
6659 emit_struct_conv (mb, klass, FALSE);
6661 mono_mb_patch_branch (mb, pos2);
6663 /* byval [Out] marshalling */
6665 /* FIXME: Handle null */
6668 mono_mb_emit_ldloc (mb, conv_arg);
6669 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6670 mono_mb_emit_stloc (mb, 0);
6673 mono_mb_emit_ldarg (mb, argnum);
6674 mono_mb_emit_stloc (mb, 1);
6676 /* emit valuetype conversion code */
6677 emit_struct_conv (mb, klass, FALSE);
6681 case MARSHAL_ACTION_MANAGED_CONV_RESULT:
6682 if (klass->delegate) {
6683 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_DEL_FTN));
6684 mono_mb_emit_stloc (mb, 3);
6688 /* The class can not have an automatic layout */
6689 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
6690 mono_mb_emit_auto_layout_exception (mb, klass);
6694 mono_mb_emit_stloc (mb, 0);
6695 /* Check for null */
6696 mono_mb_emit_ldloc (mb, 0);
6697 pos = mono_mb_emit_branch (mb, CEE_BRTRUE);
6698 mono_mb_emit_byte (mb, CEE_LDNULL);
6699 mono_mb_emit_stloc (mb, 3);
6700 pos2 = mono_mb_emit_branch (mb, CEE_BR);
6702 mono_mb_patch_branch (mb, pos);
6705 mono_mb_emit_ldloc (mb, 0);
6706 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
6707 mono_mb_emit_stloc (mb, 0);
6709 /* Allocate and set dest */
6710 mono_mb_emit_icon (mb, mono_class_native_size (klass, NULL));
6711 mono_mb_emit_byte (mb, CEE_CONV_I);
6712 mono_mb_emit_icall (mb, mono_marshal_alloc);
6713 mono_mb_emit_byte (mb, CEE_DUP);
6714 mono_mb_emit_stloc (mb, 1);
6715 mono_mb_emit_stloc (mb, 3);
6717 emit_struct_conv (mb, klass, FALSE);
6719 mono_mb_patch_branch (mb, pos2);
6723 g_assert_not_reached ();
6730 emit_marshal_com_interface (EmitMarshalContext *m, int argnum, MonoType *t,
6731 MonoMarshalSpec *spec,
6732 int conv_arg, MonoType **conv_arg_type,
6733 MarshalAction action)
6735 MonoMethodBuilder *mb = m->mb;
6736 MonoClass *klass = t->data.klass;
6737 static MonoMethod* get_object_for_iunknown = NULL;
6738 static MonoMethod* get_iunknown_for_object_internal = NULL;
6739 static MonoMethod* get_com_interface_for_object_internal = NULL;
6740 static MonoMethod* get_idispatch_for_object_internal = NULL;
6741 static MonoMethod* marshal_release = NULL;
6742 static MonoMethod* AddRef = NULL;
6743 if (!get_object_for_iunknown)
6744 get_object_for_iunknown = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForIUnknown", 1);
6745 if (!get_iunknown_for_object_internal)
6746 get_iunknown_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIUnknownForObjectInternal", 1);
6747 if (!get_idispatch_for_object_internal)
6748 get_idispatch_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIDispatchForObjectInternal", 1);
6749 if (!get_com_interface_for_object_internal)
6750 get_com_interface_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetComInterfaceForObjectInternal", 2);
6751 if (!marshal_release)
6752 marshal_release = mono_class_get_method_from_name (mono_defaults.marshal_class, "Release", 1);
6754 /* COM types are initialized lazily */
6755 mono_init_com_types ();
6758 case MARSHAL_ACTION_CONV_IN: {
6759 guint32 pos_null = 0;
6761 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6762 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6764 mono_mb_emit_ptr (mb, NULL);
6765 mono_mb_emit_stloc (mb, conv_arg);
6767 /* we dont need any conversions for out parameters */
6768 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
6771 mono_mb_emit_ldarg (mb, argnum);
6773 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6774 /* if null just break, conv arg was already inited to 0 */
6775 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
6777 mono_mb_emit_ldarg (mb, argnum);
6779 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6781 if (klass && klass != mono_defaults.object_class) {
6782 mono_mb_emit_ptr (mb, t);
6783 mono_mb_emit_icall (mb, type_from_handle);
6784 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
6786 else if (spec->native == MONO_NATIVE_IUNKNOWN)
6787 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
6788 else if (spec->native == MONO_NATIVE_IDISPATCH)
6789 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
6790 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
6791 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
6793 g_assert_not_reached ();
6794 mono_mb_emit_stloc (mb, conv_arg);
6795 mono_mb_patch_short_branch (mb, pos_null);
6799 case MARSHAL_ACTION_CONV_OUT: {
6800 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
6802 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
6803 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6805 mono_mb_emit_ldarg (mb, argnum);
6806 mono_mb_emit_byte (mb, CEE_LDNULL);
6807 mono_mb_emit_byte (mb, CEE_STIND_REF);
6809 mono_mb_emit_ldloc (mb, conv_arg);
6810 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
6812 mono_mb_emit_ldloc (mb, conv_arg);
6813 mono_mb_emit_icon (mb, TRUE);
6814 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
6815 mono_mb_emit_stloc (mb, ccw_obj);
6816 mono_mb_emit_ldloc (mb, ccw_obj);
6817 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
6819 mono_mb_emit_ldarg (mb, argnum);
6820 mono_mb_emit_ldloc (mb, conv_arg);
6821 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
6823 if (klass && klass != mono_defaults.object_class)
6824 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
6825 mono_mb_emit_byte (mb, CEE_STIND_REF);
6827 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
6829 /* is already managed object */
6830 mono_mb_patch_short_branch (mb, pos_ccw);
6831 mono_mb_emit_ldarg (mb, argnum);
6832 mono_mb_emit_ldloc (mb, ccw_obj);
6834 if (klass && klass != mono_defaults.object_class)
6835 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
6836 mono_mb_emit_byte (mb, CEE_STIND_REF);
6838 mono_mb_patch_short_branch (mb, pos_end);
6840 /* need to call Release to follow COM rules of ownership */
6841 mono_mb_emit_ldloc (mb, conv_arg);
6842 mono_mb_emit_managed_call (mb, marshal_release, NULL);
6843 mono_mb_emit_byte (mb, CEE_POP);
6846 mono_mb_patch_short_branch (mb, pos_null);
6850 case MARSHAL_ACTION_PUSH:
6852 mono_mb_emit_ldloc_addr (mb, conv_arg);
6854 mono_mb_emit_ldloc (mb, conv_arg);
6857 case MARSHAL_ACTION_CONV_RESULT: {
6858 int ccw_obj, ret_ptr;
6859 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
6860 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6861 ret_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
6863 /* store return value */
6864 mono_mb_emit_stloc (mb, ret_ptr);
6866 mono_mb_emit_ldloc (mb, ret_ptr);
6867 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
6869 mono_mb_emit_ldloc (mb, ret_ptr);
6870 mono_mb_emit_icon (mb, TRUE);
6871 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
6872 mono_mb_emit_stloc (mb, ccw_obj);
6873 mono_mb_emit_ldloc (mb, ccw_obj);
6874 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
6876 mono_mb_emit_ldloc (mb, ret_ptr);
6877 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
6879 if (klass && klass != mono_defaults.object_class)
6880 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
6881 mono_mb_emit_stloc (mb, 3);
6883 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
6885 /* is already managed object */
6886 mono_mb_patch_short_branch (mb, pos_ccw);
6887 mono_mb_emit_ldloc (mb, ccw_obj);
6889 if (klass && klass != mono_defaults.object_class)
6890 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
6891 mono_mb_emit_stloc (mb, 3);
6893 mono_mb_patch_short_branch (mb, pos_end);
6895 /* need to call Release to follow COM rules of ownership */
6896 mono_mb_emit_ldloc (mb, ret_ptr);
6897 mono_mb_emit_managed_call (mb, marshal_release, NULL);
6898 mono_mb_emit_byte (mb, CEE_POP);
6901 mono_mb_patch_short_branch (mb, pos_null);
6905 case MARSHAL_ACTION_MANAGED_CONV_IN: {
6907 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
6908 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
6910 klass = mono_class_from_mono_type (t);
6911 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
6912 *conv_arg_type = &mono_defaults.int_class->byval_arg;
6914 mono_mb_emit_byte (mb, CEE_LDNULL);
6915 mono_mb_emit_stloc (mb, conv_arg);
6916 if (t->attrs & PARAM_ATTRIBUTE_OUT)
6919 mono_mb_emit_ldarg (mb, argnum);
6921 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6922 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
6924 mono_mb_emit_ldarg (mb, argnum);
6926 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6927 mono_mb_emit_icon (mb, TRUE);
6928 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
6929 mono_mb_emit_stloc (mb, ccw_obj);
6930 mono_mb_emit_ldloc (mb, ccw_obj);
6931 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
6934 mono_mb_emit_ldarg (mb, argnum);
6936 mono_mb_emit_byte (mb, CEE_LDIND_REF);
6937 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
6939 if (klass && klass != mono_defaults.object_class)
6940 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
6941 mono_mb_emit_stloc (mb, conv_arg);
6942 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
6944 /* is already managed object */
6945 mono_mb_patch_short_branch (mb, pos_ccw);
6946 mono_mb_emit_ldloc (mb, ccw_obj);
6947 if (klass && klass != mono_defaults.object_class)
6948 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
6949 mono_mb_emit_stloc (mb, conv_arg);
6951 mono_mb_patch_short_branch (mb, pos_end);
6953 mono_mb_patch_short_branch (mb, pos_null);
6957 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
6958 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT) {
6959 guint32 pos_null = 0;
6962 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
6964 mono_mb_emit_ldloc (mb, conv_arg);
6965 /* if null just break, conv arg was already inited to 0 */
6966 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
6968 /* to store later */
6969 mono_mb_emit_ldarg (mb, argnum);
6970 mono_mb_emit_ldloc (mb, conv_arg);
6971 if (klass && klass != mono_defaults.object_class) {
6972 mono_mb_emit_ptr (mb, t);
6973 mono_mb_emit_icall (mb, type_from_handle);
6974 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
6976 else if (spec->native == MONO_NATIVE_IUNKNOWN)
6977 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
6978 else if (spec->native == MONO_NATIVE_IDISPATCH)
6979 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
6980 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
6981 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
6983 g_assert_not_reached ();
6984 mono_mb_emit_byte (mb, CEE_STIND_I);
6986 mono_mb_emit_ldarg (mb, argnum);
6987 mono_mb_emit_byte (mb, CEE_LDIND_I);
6988 mono_mb_emit_managed_call (mb, AddRef, NULL);
6989 mono_mb_emit_byte (mb, CEE_POP);
6991 mono_mb_patch_short_branch (mb, pos_null);
6996 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
6997 guint32 pos_null = 0;
6999 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7002 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
7004 /* store return value */
7005 mono_mb_emit_stloc (mb, ccw_obj);
7007 mono_mb_emit_ldloc (mb, ccw_obj);
7009 /* if null just break, conv arg was already inited to 0 */
7010 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
7012 /* to store later */
7013 mono_mb_emit_ldloc (mb, ccw_obj);
7014 if (klass && klass != mono_defaults.object_class) {
7015 mono_mb_emit_ptr (mb, t);
7016 mono_mb_emit_icall (mb, type_from_handle);
7017 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
7019 else if (spec->native == MONO_NATIVE_IUNKNOWN)
7020 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7021 else if (spec->native == MONO_NATIVE_IDISPATCH)
7022 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
7023 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
7024 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
7026 g_assert_not_reached ();
7027 mono_mb_emit_stloc (mb, 3);
7028 mono_mb_emit_ldloc (mb, 3);
7030 mono_mb_emit_managed_call (mb, AddRef, NULL);
7031 mono_mb_emit_byte (mb, CEE_POP);
7033 mono_mb_patch_short_branch (mb, pos_null);
7038 g_assert_not_reached ();
7045 emit_marshal_variant (EmitMarshalContext *m, int argnum, MonoType *t,
7046 MonoMarshalSpec *spec,
7047 int conv_arg, MonoType **conv_arg_type,
7048 MarshalAction action)
7050 MonoMethodBuilder *mb = m->mb;
7051 static MonoMethod *get_object_for_native_variant = NULL;
7052 static MonoMethod *get_native_variant_for_object = NULL;
7054 mono_init_com_types ();
7056 if (!get_object_for_native_variant)
7057 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
7058 g_assert (get_object_for_native_variant);
7060 if (!get_native_variant_for_object)
7061 get_native_variant_for_object = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetNativeVariantForObject", 2);
7062 g_assert (get_native_variant_for_object);
7065 case MARSHAL_ACTION_CONV_IN: {
7066 conv_arg = mono_mb_add_local (mb, &mono_defaults.variant_class->byval_arg);
7069 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7071 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7073 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
7076 mono_mb_emit_ldarg (mb, argnum);
7078 mono_mb_emit_byte(mb, CEE_LDIND_REF);
7079 mono_mb_emit_ldloc_addr (mb, conv_arg);
7080 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7084 case MARSHAL_ACTION_CONV_OUT: {
7085 static MonoMethod *variant_clear = NULL;
7088 variant_clear = mono_class_get_method_from_name (mono_defaults.variant_class, "Clear", 0);
7089 g_assert (variant_clear);
7093 mono_mb_emit_ldarg (mb, argnum);
7094 mono_mb_emit_ldloc_addr (mb, conv_arg);
7095 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7096 mono_mb_emit_byte (mb, CEE_STIND_REF);
7099 mono_mb_emit_ldloc_addr (mb, conv_arg);
7100 mono_mb_emit_managed_call (mb, variant_clear, NULL);
7104 case MARSHAL_ACTION_PUSH:
7106 mono_mb_emit_ldloc_addr (mb, conv_arg);
7108 mono_mb_emit_ldloc (mb, conv_arg);
7111 case MARSHAL_ACTION_CONV_RESULT: {
7112 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7113 mono_mb_emit_exception_marshal_directive (mb, msg);
7117 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7118 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7121 *conv_arg_type = &mono_defaults.variant_class->this_arg;
7123 *conv_arg_type = &mono_defaults.variant_class->byval_arg;
7125 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
7129 mono_mb_emit_ldarg (mb, argnum);
7131 mono_mb_emit_ldarg_addr (mb, argnum);
7132 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
7133 mono_mb_emit_stloc (mb, conv_arg);
7137 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7139 mono_mb_emit_ldloc (mb, conv_arg);
7140 mono_mb_emit_ldarg (mb, argnum);
7141 mono_mb_emit_managed_call (mb, get_native_variant_for_object, NULL);
7146 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7147 char *msg = g_strdup ("Marshalling of VARIANT not supported as a return type.");
7148 mono_mb_emit_exception_marshal_directive (mb, msg);
7153 g_assert_not_reached ();
7160 emit_marshal_array (EmitMarshalContext *m, int argnum, MonoType *t,
7161 MonoMarshalSpec *spec,
7162 int conv_arg, MonoType **conv_arg_type,
7163 MarshalAction action)
7165 MonoMethodBuilder *mb = m->mb;
7166 MonoClass *klass = mono_class_from_mono_type (t);
7167 gboolean need_convert, need_free;
7168 MonoMarshalNative encoding;
7170 encoding = mono_marshal_get_string_encoding (m->piinfo, spec);
7173 case MARSHAL_ACTION_CONV_IN:
7174 *conv_arg_type = &mono_defaults.object_class->byval_arg;
7175 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7177 if (klass->element_class->blittable) {
7178 mono_mb_emit_ldarg (mb, argnum);
7180 mono_mb_emit_byte (mb, CEE_LDIND_I);
7181 mono_mb_emit_icall (mb, conv_to_icall (MONO_MARSHAL_CONV_ARRAY_LPARRAY));
7182 mono_mb_emit_stloc (mb, conv_arg);
7185 guint32 label1, label2, label3;
7186 int index_var, src_var, dest_ptr, esize;
7187 MonoMarshalConv conv;
7188 gboolean is_string = FALSE;
7190 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7192 eklass = klass->element_class;
7194 if (eklass == mono_defaults.string_class) {
7196 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7198 else if (eklass == mono_defaults.stringbuilder_class) {
7200 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7205 src_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7206 mono_mb_emit_ldarg (mb, argnum);
7208 mono_mb_emit_byte (mb, CEE_LDIND_I);
7209 mono_mb_emit_stloc (mb, src_var);
7212 mono_mb_emit_ldloc (mb, src_var);
7213 mono_mb_emit_stloc (mb, conv_arg);
7214 mono_mb_emit_ldloc (mb, src_var);
7215 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7219 char *msg = g_strdup_printf ("string/stringbuilder marshalling conversion %d not implemented", encoding);
7220 MonoException *exc = mono_get_exception_not_implemented (msg);
7223 mono_raise_exception (exc);
7228 esize = sizeof (gpointer);
7230 esize = mono_class_native_size (eklass, NULL);
7232 /* allocate space for the native struct and store the address */
7233 mono_mb_emit_icon (mb, esize);
7234 mono_mb_emit_ldloc (mb, src_var);
7235 mono_mb_emit_byte (mb, CEE_LDLEN);
7237 if (eklass == mono_defaults.string_class) {
7238 /* Make the array bigger for the terminating null */
7239 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7240 mono_mb_emit_byte (mb, CEE_ADD);
7242 mono_mb_emit_byte (mb, CEE_MUL);
7243 mono_mb_emit_byte (mb, CEE_PREFIX1);
7244 mono_mb_emit_byte (mb, CEE_LOCALLOC);
7245 mono_mb_emit_stloc (mb, conv_arg);
7247 mono_mb_emit_ldloc (mb, conv_arg);
7248 mono_mb_emit_stloc (mb, dest_ptr);
7250 /* Emit marshalling loop */
7251 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7252 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7253 mono_mb_emit_stloc (mb, index_var);
7254 label2 = mono_mb_get_label (mb);
7255 mono_mb_emit_ldloc (mb, index_var);
7256 mono_mb_emit_ldloc (mb, src_var);
7257 mono_mb_emit_byte (mb, CEE_LDLEN);
7258 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7260 /* Emit marshalling code */
7263 mono_mb_emit_ldloc (mb, dest_ptr);
7264 mono_mb_emit_ldloc (mb, src_var);
7265 mono_mb_emit_ldloc (mb, index_var);
7266 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7267 mono_mb_emit_icall (mb, conv_to_icall (conv));
7268 mono_mb_emit_byte (mb, CEE_STIND_I);
7270 /* set the src_ptr */
7271 mono_mb_emit_ldloc (mb, src_var);
7272 mono_mb_emit_ldloc (mb, index_var);
7273 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7274 mono_mb_emit_stloc (mb, 0);
7277 mono_mb_emit_ldloc (mb, dest_ptr);
7278 mono_mb_emit_stloc (mb, 1);
7280 /* emit valuetype conversion code */
7281 emit_struct_conv (mb, eklass, FALSE);
7284 mono_mb_emit_add_to_local (mb, index_var, 1);
7285 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7287 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7289 mono_mb_patch_branch (mb, label3);
7291 if (eklass == mono_defaults.string_class) {
7292 /* Null terminate */
7293 mono_mb_emit_ldloc (mb, dest_ptr);
7294 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7295 mono_mb_emit_byte (mb, CEE_STIND_REF);
7298 mono_mb_patch_branch (mb, label1);
7303 case MARSHAL_ACTION_CONV_OUT:
7304 /* Unicode character arrays are implicitly marshalled as [Out] under MS.NET */
7305 need_convert = ((klass->element_class == mono_defaults.char_class) && (encoding == MONO_NATIVE_LPWSTR)) || (klass->element_class == mono_defaults.stringbuilder_class) || (t->attrs & PARAM_ATTRIBUTE_OUT);
7306 need_free = mono_marshal_need_free (&klass->element_class->byval_arg,
7309 if (need_convert || need_free) {
7310 /* FIXME: Optimize blittable case */
7312 guint32 label1, label2, label3;
7313 int index_var, src_ptr, loc, esize;
7315 eklass = klass->element_class;
7316 if ((eklass == mono_defaults.stringbuilder_class) || (eklass == mono_defaults.string_class))
7317 esize = sizeof (gpointer);
7319 esize = mono_class_native_size (eklass, NULL);
7320 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7321 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7324 mono_mb_emit_ldarg (mb, argnum);
7326 mono_mb_emit_byte (mb, CEE_LDIND_I);
7327 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7329 mono_mb_emit_ldloc (mb, conv_arg);
7330 mono_mb_emit_stloc (mb, src_ptr);
7332 /* Emit marshalling loop */
7333 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7334 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7335 mono_mb_emit_stloc (mb, index_var);
7336 label2 = mono_mb_get_label (mb);
7337 mono_mb_emit_ldloc (mb, index_var);
7338 mono_mb_emit_ldarg (mb, argnum);
7340 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7341 mono_mb_emit_byte (mb, CEE_LDLEN);
7342 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7344 /* Emit marshalling code */
7346 if (eklass == mono_defaults.stringbuilder_class) {
7347 gboolean need_free2;
7348 MonoMarshalConv conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free2);
7350 g_assert (conv != -1);
7353 mono_mb_emit_ldarg (mb, argnum);
7355 mono_mb_emit_byte (mb, CEE_LDIND_I);
7356 mono_mb_emit_ldloc (mb, index_var);
7357 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7360 mono_mb_emit_ldloc (mb, src_ptr);
7361 mono_mb_emit_byte (mb, CEE_LDIND_I);
7363 mono_mb_emit_icall (mb, conv_to_icall (conv));
7367 mono_mb_emit_ldloc (mb, src_ptr);
7368 mono_mb_emit_byte (mb, CEE_LDIND_I);
7370 mono_mb_emit_icall (mb, mono_marshal_free);
7373 else if (eklass == mono_defaults.string_class) {
7376 mono_mb_emit_ldloc (mb, src_ptr);
7377 mono_mb_emit_byte (mb, CEE_LDIND_I);
7379 mono_mb_emit_icall (mb, mono_marshal_free);
7384 /* set the src_ptr */
7385 mono_mb_emit_ldloc (mb, src_ptr);
7386 mono_mb_emit_stloc (mb, 0);
7389 mono_mb_emit_ldarg (mb, argnum);
7391 mono_mb_emit_byte (mb, CEE_LDIND_REF);
7392 mono_mb_emit_ldloc (mb, index_var);
7393 mono_mb_emit_op (mb, CEE_LDELEMA, eklass);
7394 mono_mb_emit_stloc (mb, 1);
7396 /* emit valuetype conversion code */
7397 emit_struct_conv (mb, eklass, TRUE);
7401 mono_mb_emit_ldloc (mb, src_ptr);
7402 mono_mb_emit_stloc (mb, loc);
7403 mono_mb_emit_ldloc (mb, loc);
7405 emit_struct_free (mb, eklass, loc);
7409 mono_mb_emit_add_to_local (mb, index_var, 1);
7410 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7412 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7414 mono_mb_patch_branch (mb, label1);
7415 mono_mb_patch_branch (mb, label3);
7419 case MARSHAL_ACTION_PUSH:
7421 mono_mb_emit_ldloc_addr (mb, conv_arg);
7423 mono_mb_emit_ldloc (mb, conv_arg);
7426 case MARSHAL_ACTION_CONV_RESULT:
7427 /* fixme: we need conversions here */
7428 mono_mb_emit_stloc (mb, 3);
7431 case MARSHAL_ACTION_MANAGED_CONV_IN: {
7433 guint32 label1, label2, label3;
7434 int index_var, src_ptr, loc, esize, param_num, num_elem;
7435 MonoMarshalConv conv;
7436 gboolean is_string = FALSE;
7438 conv_arg = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7439 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7442 char *msg = g_strdup ("Byref array marshalling to managed code is not implemented.");
7443 mono_mb_emit_exception_marshal_directive (mb, msg);
7447 char *msg = g_strdup ("[MarshalAs] attribute required to marshal arrays to managed code.");
7448 mono_mb_emit_exception_marshal_directive (mb, msg);
7451 if (spec->native != MONO_NATIVE_LPARRAY) {
7452 char *msg = g_strdup ("Non LPArray marshalling of arrays to managed code is not implemented.");
7453 mono_mb_emit_exception_marshal_directive (mb, msg);
7457 /* FIXME: t is from the method which is wrapped, not the delegate type */
7458 /* g_assert (t->attrs & PARAM_ATTRIBUTE_IN); */
7460 param_num = spec->data.array_data.param_num;
7461 num_elem = spec->data.array_data.num_elem;
7462 if (spec->data.array_data.elem_mult == 0)
7463 /* param_num is not specified */
7466 if (param_num == -1) {
7467 if (num_elem <= 0) {
7468 char *msg = g_strdup ("Either SizeConst or SizeParamIndex should be specified when marshalling arrays to managed code.");
7469 mono_mb_emit_exception_marshal_directive (mb, msg);
7474 /* FIXME: Optimize blittable case */
7476 eklass = klass->element_class;
7477 if (eklass == mono_defaults.string_class) {
7479 conv = mono_marshal_get_ptr_to_string_conv (m->piinfo, spec, &need_free);
7481 else if (eklass == mono_defaults.stringbuilder_class) {
7483 conv = mono_marshal_get_ptr_to_stringbuilder_conv (m->piinfo, spec, &need_free);
7488 mono_marshal_load_type_info (eklass);
7491 esize = sizeof (gpointer);
7493 esize = mono_class_native_size (eklass, NULL);
7494 src_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7495 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7497 mono_mb_emit_byte (mb, CEE_LDNULL);
7498 mono_mb_emit_stloc (mb, conv_arg);
7500 /* Check param index */
7501 if (param_num != -1) {
7502 if (param_num >= m->sig->param_count) {
7503 char *msg = g_strdup ("Array size control parameter index is out of range.");
7504 mono_mb_emit_exception_marshal_directive (mb, msg);
7507 switch (m->sig->params [param_num]->type) {
7520 char *msg = g_strdup ("Array size control parameter must be an integral type.");
7521 mono_mb_emit_exception_marshal_directive (mb, msg);
7528 mono_mb_emit_ldarg (mb, argnum);
7529 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7531 mono_mb_emit_ldarg (mb, argnum);
7532 mono_mb_emit_stloc (mb, src_ptr);
7534 /* Create managed array */
7536 * The LPArray marshalling spec says that sometimes param_num starts
7537 * from 1, sometimes it starts from 0. But MS seems to allways start
7541 if (param_num == -1)
7542 mono_mb_emit_icon (mb, num_elem);
7544 /* FIXME: Add the two together */
7545 mono_mb_emit_ldarg (mb, param_num);
7547 mono_mb_emit_icon (mb, num_elem);
7548 mono_mb_emit_byte (mb, CEE_ADD);
7552 mono_mb_emit_op (mb, CEE_NEWARR, eklass);
7553 mono_mb_emit_stloc (mb, conv_arg);
7555 if (eklass->blittable) {
7556 mono_mb_emit_ldloc (mb, conv_arg);
7557 mono_mb_emit_byte (mb, CEE_CONV_I);
7558 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7559 mono_mb_emit_byte (mb, CEE_ADD);
7560 mono_mb_emit_ldarg (mb, argnum);
7561 mono_mb_emit_ldloc (mb, conv_arg);
7562 mono_mb_emit_byte (mb, CEE_LDLEN);
7563 mono_mb_emit_icon (mb, esize);
7564 mono_mb_emit_byte (mb, CEE_MUL);
7565 mono_mb_emit_byte (mb, CEE_PREFIX1);
7566 mono_mb_emit_byte (mb, CEE_CPBLK);
7570 /* Emit marshalling loop */
7571 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7572 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7573 mono_mb_emit_stloc (mb, index_var);
7574 label2 = mono_mb_get_label (mb);
7575 mono_mb_emit_ldloc (mb, index_var);
7576 mono_mb_emit_ldloc (mb, conv_arg);
7577 mono_mb_emit_byte (mb, CEE_LDLEN);
7578 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7580 /* Emit marshalling code */
7582 g_assert (conv != -1);
7584 mono_mb_emit_ldloc (mb, conv_arg);
7585 mono_mb_emit_ldloc (mb, index_var);
7587 mono_mb_emit_ldloc (mb, src_ptr);
7588 mono_mb_emit_byte (mb, CEE_LDIND_I);
7590 mono_mb_emit_icall (mb, conv_to_icall (conv));
7591 mono_mb_emit_byte (mb, CEE_STELEM_REF);
7594 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7595 mono_mb_emit_exception_marshal_directive (mb, msg);
7599 mono_mb_emit_add_to_local (mb, index_var, 1);
7600 mono_mb_emit_add_to_local (mb, src_ptr, esize);
7602 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7604 mono_mb_patch_branch (mb, label1);
7605 mono_mb_patch_branch (mb, label3);
7609 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
7611 guint32 label1, label2, label3;
7612 int index_var, dest_ptr, loc, esize, param_num, num_elem;
7613 MonoMarshalConv conv;
7614 gboolean is_string = FALSE;
7617 /* Already handled in CONV_IN */
7620 /* These are already checked in CONV_IN */
7621 g_assert (!t->byref);
7622 g_assert (spec->native == MONO_NATIVE_LPARRAY);
7623 g_assert (t->attrs & PARAM_ATTRIBUTE_OUT);
7625 param_num = spec->data.array_data.param_num;
7626 num_elem = spec->data.array_data.num_elem;
7628 if (spec->data.array_data.elem_mult == 0)
7629 /* param_num is not specified */
7632 if (param_num == -1) {
7633 if (num_elem <= 0) {
7634 g_assert_not_reached ();
7638 /* FIXME: Optimize blittable case */
7640 eklass = klass->element_class;
7641 if (eklass == mono_defaults.string_class) {
7643 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7645 else if (eklass == mono_defaults.stringbuilder_class) {
7647 conv = mono_marshal_get_stringbuilder_to_ptr_conv (m->piinfo, spec);
7652 mono_marshal_load_type_info (eklass);
7655 esize = sizeof (gpointer);
7657 esize = mono_class_native_size (eklass, NULL);
7659 dest_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7660 loc = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7663 mono_mb_emit_ldloc (mb, conv_arg);
7664 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7666 mono_mb_emit_ldarg (mb, argnum);
7667 mono_mb_emit_stloc (mb, dest_ptr);
7669 if (eklass->blittable) {
7671 mono_mb_emit_ldarg (mb, argnum);
7673 mono_mb_emit_ldloc (mb, conv_arg);
7674 mono_mb_emit_byte (mb, CEE_CONV_I);
7675 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArray, vector));
7676 mono_mb_emit_byte (mb, CEE_ADD);
7678 mono_mb_emit_ldloc (mb, conv_arg);
7679 mono_mb_emit_byte (mb, CEE_LDLEN);
7680 mono_mb_emit_icon (mb, esize);
7681 mono_mb_emit_byte (mb, CEE_MUL);
7682 mono_mb_emit_byte (mb, CEE_PREFIX1);
7683 mono_mb_emit_byte (mb, CEE_CPBLK);
7687 /* Emit marshalling loop */
7688 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7689 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7690 mono_mb_emit_stloc (mb, index_var);
7691 label2 = mono_mb_get_label (mb);
7692 mono_mb_emit_ldloc (mb, index_var);
7693 mono_mb_emit_ldloc (mb, conv_arg);
7694 mono_mb_emit_byte (mb, CEE_LDLEN);
7695 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7697 /* Emit marshalling code */
7699 g_assert (conv != -1);
7702 mono_mb_emit_ldloc (mb, dest_ptr);
7705 mono_mb_emit_ldloc (mb, conv_arg);
7706 mono_mb_emit_ldloc (mb, index_var);
7708 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7710 mono_mb_emit_icall (mb, conv_to_icall (conv));
7711 mono_mb_emit_byte (mb, CEE_STIND_I);
7714 char *msg = g_strdup ("Marshalling of non-string and non-blittable arrays to managed code is not implemented.");
7715 mono_mb_emit_exception_marshal_directive (mb, msg);
7719 mono_mb_emit_add_to_local (mb, index_var, 1);
7720 mono_mb_emit_add_to_local (mb, dest_ptr, esize);
7722 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7724 mono_mb_patch_branch (mb, label1);
7725 mono_mb_patch_branch (mb, label3);
7729 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
7731 guint32 label1, label2, label3;
7732 int index_var, src, dest, esize;
7733 MonoMarshalConv conv = -1;
7734 gboolean is_string = FALSE;
7736 g_assert (!t->byref);
7738 eklass = klass->element_class;
7740 mono_marshal_load_type_info (eklass);
7742 if (eklass == mono_defaults.string_class) {
7744 conv = mono_marshal_get_string_to_ptr_conv (m->piinfo, spec);
7747 g_assert_not_reached ();
7751 esize = sizeof (gpointer);
7753 esize = mono_class_native_size (eklass, NULL);
7755 src = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
7756 dest = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7758 mono_mb_emit_stloc (mb, src);
7759 mono_mb_emit_ldloc (mb, src);
7760 mono_mb_emit_stloc (mb, 3);
7762 /* Check for null */
7763 mono_mb_emit_ldloc (mb, src);
7764 label1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
7766 /* Allocate native array */
7767 mono_mb_emit_icon (mb, esize);
7768 mono_mb_emit_ldloc (mb, src);
7769 mono_mb_emit_byte (mb, CEE_LDLEN);
7771 if (eklass == mono_defaults.string_class) {
7772 /* Make the array bigger for the terminating null */
7773 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
7774 mono_mb_emit_byte (mb, CEE_ADD);
7776 mono_mb_emit_byte (mb, CEE_MUL);
7777 mono_mb_emit_icall (mb, mono_marshal_alloc);
7778 mono_mb_emit_stloc (mb, dest);
7779 mono_mb_emit_ldloc (mb, dest);
7780 mono_mb_emit_stloc (mb, 3);
7782 /* Emit marshalling loop */
7783 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
7784 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
7785 mono_mb_emit_stloc (mb, index_var);
7786 label2 = mono_mb_get_label (mb);
7787 mono_mb_emit_ldloc (mb, index_var);
7788 mono_mb_emit_ldloc (mb, src);
7789 mono_mb_emit_byte (mb, CEE_LDLEN);
7790 label3 = mono_mb_emit_branch (mb, CEE_BGE);
7792 /* Emit marshalling code */
7794 g_assert (conv != -1);
7797 mono_mb_emit_ldloc (mb, dest);
7800 mono_mb_emit_ldloc (mb, src);
7801 mono_mb_emit_ldloc (mb, index_var);
7803 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
7805 mono_mb_emit_icall (mb, conv_to_icall (conv));
7806 mono_mb_emit_byte (mb, CEE_STIND_I);
7809 char *msg = g_strdup ("Marshalling of non-string arrays to managed code is not implemented.");
7810 mono_mb_emit_exception_marshal_directive (mb, msg);
7814 mono_mb_emit_add_to_local (mb, index_var, 1);
7815 mono_mb_emit_add_to_local (mb, dest, esize);
7817 mono_mb_emit_branch_label (mb, CEE_BR, label2);
7819 mono_mb_patch_branch (mb, label3);
7820 mono_mb_patch_branch (mb, label1);
7824 g_assert_not_reached ();
7831 emit_marshal_boolean (EmitMarshalContext *m, int argnum, MonoType *t,
7832 MonoMarshalSpec *spec,
7833 int conv_arg, MonoType **conv_arg_type,
7834 MarshalAction action)
7836 MonoMethodBuilder *mb = m->mb;
7839 case MARSHAL_ACTION_CONV_IN: {
7840 MonoType *local_type;
7841 int variant_bool = 0;
7845 local_type = &mono_defaults.int32_class->byval_arg;
7847 switch (spec->native) {
7848 case MONO_NATIVE_I1:
7849 case MONO_NATIVE_U1:
7850 local_type = &mono_defaults.byte_class->byval_arg;
7852 case MONO_NATIVE_VARIANTBOOL:
7853 local_type = &mono_defaults.int16_class->byval_arg;
7857 g_warning ("marshalling bool as native type %x is currently not supported", spec->native);
7858 local_type = &mono_defaults.int32_class->byval_arg;
7862 *conv_arg_type = &mono_defaults.int_class->byval_arg;
7863 conv_arg = mono_mb_add_local (mb, local_type);
7864 mono_mb_emit_ldarg (mb, argnum);
7865 mono_mb_emit_byte (mb, CEE_LDIND_I1);
7867 mono_mb_emit_byte (mb, CEE_NEG);
7868 mono_mb_emit_stloc (mb, conv_arg);
7872 case MARSHAL_ACTION_CONV_OUT:
7875 mono_mb_emit_ldarg (mb, argnum);
7876 mono_mb_emit_ldloc (mb, conv_arg);
7877 if (spec != NULL && spec->native == MONO_NATIVE_VARIANTBOOL)
7878 mono_mb_emit_byte (mb, CEE_NEG);
7879 mono_mb_emit_byte (mb, CEE_STIND_I1);
7882 case MARSHAL_ACTION_PUSH:
7884 mono_mb_emit_ldloc_addr (mb, conv_arg);
7886 mono_mb_emit_ldarg (mb, argnum);
7889 case MARSHAL_ACTION_CONV_RESULT:
7890 /* maybe we need to make sure that it fits within 8 bits */
7891 mono_mb_emit_stloc (mb, 3);
7895 g_assert_not_reached ();
7902 emit_marshal_ptr (EmitMarshalContext *m, int argnum, MonoType *t,
7903 MonoMarshalSpec *spec, int conv_arg,
7904 MonoType **conv_arg_type, MarshalAction action)
7906 MonoMethodBuilder *mb = m->mb;
7909 case MARSHAL_ACTION_CONV_IN:
7910 if (MONO_TYPE_ISSTRUCT (t->data.type)) {
7911 char *msg = g_strdup_printf ("Can not marshal 'parameter #%d': Pointers can not reference marshaled structures. Use byref instead.", argnum + 1);
7912 mono_mb_emit_exception_marshal_directive (m->mb, msg);
7916 case MARSHAL_ACTION_PUSH:
7917 mono_mb_emit_ldarg (mb, argnum);
7920 case MARSHAL_ACTION_CONV_RESULT:
7921 /* no conversions necessary */
7922 mono_mb_emit_stloc (mb, 3);
7933 emit_marshal_char (EmitMarshalContext *m, int argnum, MonoType *t,
7934 MonoMarshalSpec *spec, int conv_arg,
7935 MonoType **conv_arg_type, MarshalAction action)
7937 MonoMethodBuilder *mb = m->mb;
7940 case MARSHAL_ACTION_PUSH:
7941 /* fixme: dont know how to marshal that. We cant simply
7942 * convert it to a one byte UTF8 character, because an
7943 * unicode character may need more that one byte in UTF8 */
7944 mono_mb_emit_ldarg (mb, argnum);
7947 case MARSHAL_ACTION_CONV_RESULT:
7948 /* fixme: we need conversions here */
7949 mono_mb_emit_stloc (mb, 3);
7960 emit_marshal_scalar (EmitMarshalContext *m, int argnum, MonoType *t,
7961 MonoMarshalSpec *spec, int conv_arg,
7962 MonoType **conv_arg_type, MarshalAction action)
7964 MonoMethodBuilder *mb = m->mb;
7967 case MARSHAL_ACTION_PUSH:
7968 mono_mb_emit_ldarg (mb, argnum);
7971 case MARSHAL_ACTION_CONV_RESULT:
7972 /* no conversions necessary */
7973 mono_mb_emit_stloc (mb, 3);
7984 emit_marshal (EmitMarshalContext *m, int argnum, MonoType *t,
7985 MonoMarshalSpec *spec, int conv_arg,
7986 MonoType **conv_arg_type, MarshalAction action)
7988 /* Ensure that we have marshalling info for this param */
7989 mono_marshal_load_type_info (mono_class_from_mono_type (t));
7991 if (spec && spec->native == MONO_NATIVE_CUSTOM)
7992 return emit_marshal_custom (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7994 if (spec && spec->native == MONO_NATIVE_ASANY)
7995 return emit_marshal_asany (m, argnum, t, spec, conv_arg, conv_arg_type, action);
7998 case MONO_TYPE_VALUETYPE:
7999 if (t->data.klass == mono_defaults.handleref_class)
8000 return emit_marshal_handleref (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8002 return emit_marshal_vtype (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8003 case MONO_TYPE_STRING:
8004 return emit_marshal_string (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8005 case MONO_TYPE_CLASS:
8006 case MONO_TYPE_OBJECT:
8007 if (spec && spec->native == MONO_NATIVE_STRUCT)
8008 return emit_marshal_variant (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8010 if (spec && (spec->native == MONO_NATIVE_IUNKNOWN ||
8011 spec->native == MONO_NATIVE_IDISPATCH ||
8012 spec->native == MONO_NATIVE_INTERFACE))
8013 return emit_marshal_com_interface (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8015 if (mono_defaults.safehandle_class != NULL &&
8016 mono_class_is_subclass_of (t->data.klass, mono_defaults.safehandle_class, FALSE))
8017 return emit_marshal_safehandle (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8019 return emit_marshal_object (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8020 case MONO_TYPE_ARRAY:
8021 case MONO_TYPE_SZARRAY:
8022 return emit_marshal_array (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8023 case MONO_TYPE_BOOLEAN:
8024 return emit_marshal_boolean (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8026 return emit_marshal_ptr (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8027 case MONO_TYPE_CHAR:
8028 return emit_marshal_char (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8041 case MONO_TYPE_FNPTR:
8042 return emit_marshal_scalar (m, argnum, t, spec, conv_arg, conv_arg_type, action);
8049 * mono_marshal_emit_native_wrapper:
8050 * @image: the image to use for looking up custom marshallers
8051 * @sig: The signature of the native function
8052 * @piinfo: Marshalling information
8053 * @mspecs: Marshalling information
8054 * @func: the native function to call
8055 * @check_exceptions: Whenever to check for pending exceptions after the native call
8057 * generates IL code for the pinvoke wrapper, the generated code calls @func.
8060 mono_marshal_emit_native_wrapper (MonoImage *image, MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func, gboolean check_exceptions)
8062 EmitMarshalContext m;
8063 MonoMethodSignature *csig;
8065 int i, argnum, *tmp_locals;
8067 static MonoMethodSignature *get_last_error_sig = NULL;
8072 /* we copy the signature, so that we can set pinvoke to 0 */
8073 csig = signature_dup (mb->method->klass->image, sig);
8078 /* we allocate local for use with emit_struct_conv() */
8079 /* allocate local 0 (pointer) src_ptr */
8080 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8081 /* allocate local 1 (pointer) dst_ptr */
8082 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8083 /* allocate local 2 (boolean) delete_old */
8084 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8086 /* delete_old = FALSE */
8087 mono_mb_emit_icon (mb, 0);
8088 mono_mb_emit_stloc (mb, 2);
8090 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8091 /* allocate local 3 to store the return value */
8092 mono_mb_add_local (mb, sig->ret);
8095 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8096 /* Return type custom marshaling */
8098 * Since we can't determine the return type of the unmanaged function,
8099 * we assume it returns a pointer, and pass that pointer to
8100 * MarshalNativeToManaged.
8102 csig->ret = &mono_defaults.int_class->byval_arg;
8105 /* we first do all conversions */
8106 tmp_locals = alloca (sizeof (int) * sig->param_count);
8107 m.orig_conv_args = alloca (sizeof (int) * (sig->param_count + 1));
8109 for (i = 0; i < sig->param_count; i ++) {
8110 tmp_locals [i] = emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_CONV_IN);
8113 /* push all arguments */
8116 mono_mb_emit_byte (mb, CEE_LDARG_0);
8119 for (i = 0; i < sig->param_count; i++) {
8120 emit_marshal (&m, i + sig->hasthis, sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_PUSH);
8123 /* call the native method */
8124 if (MONO_CLASS_IS_IMPORT (mb->method->klass)) {
8125 mono_mb_emit_cominterop_call (mb, csig, &piinfo->method);
8128 mono_mb_emit_native_call (mb, csig, func);
8131 /* Set LastError if needed */
8132 if (piinfo->piflags & PINVOKE_ATTRIBUTE_SUPPORTS_LAST_ERROR) {
8133 if (!get_last_error_sig) {
8134 get_last_error_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 0);
8135 get_last_error_sig->ret = &mono_defaults.int_class->byval_arg;
8136 get_last_error_sig->pinvoke = 1;
8139 #ifdef PLATFORM_WIN32
8141 * Have to call GetLastError () early and without a wrapper, since various runtime components could
8142 * clobber its value.
8144 mono_mb_emit_native_call (mb, get_last_error_sig, GetLastError);
8145 mono_mb_emit_icall (mb, mono_marshal_set_last_error_windows);
8147 mono_mb_emit_icall (mb, mono_marshal_set_last_error);
8151 /* convert the result */
8152 if (!sig->ret->byref) {
8153 MonoMarshalSpec *spec = mspecs [0];
8154 type = sig->ret->type;
8156 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8157 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8162 case MONO_TYPE_VOID:
8164 case MONO_TYPE_VALUETYPE:
8165 klass = sig->ret->data.klass;
8166 if (klass->enumtype) {
8167 type = sig->ret->data.klass->enum_basetype->type;
8170 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8184 case MONO_TYPE_FNPTR:
8185 case MONO_TYPE_STRING:
8186 case MONO_TYPE_CLASS:
8187 case MONO_TYPE_OBJECT:
8188 case MONO_TYPE_BOOLEAN:
8189 case MONO_TYPE_ARRAY:
8190 case MONO_TYPE_SZARRAY:
8191 case MONO_TYPE_CHAR:
8193 emit_marshal (&m, 0, sig->ret, spec, 0, NULL, MARSHAL_ACTION_CONV_RESULT);
8195 case MONO_TYPE_TYPEDBYREF:
8197 g_warning ("return type 0x%02x unknown", sig->ret->type);
8198 g_assert_not_reached ();
8202 mono_mb_emit_stloc (mb, 3);
8206 * Need to call this after converting the result since MONO_VTADDR needs
8207 * to be adjacent to the call instruction.
8209 if (check_exceptions)
8210 emit_thread_interrupt_checkpoint (mb);
8212 /* we need to convert byref arguments back and free string arrays */
8213 for (i = 0; i < sig->param_count; i++) {
8214 MonoType *t = sig->params [i];
8215 MonoMarshalSpec *spec = mspecs [i + 1];
8217 argnum = i + sig->hasthis;
8219 if (spec && ((spec->native == MONO_NATIVE_CUSTOM) || (spec->native == MONO_NATIVE_ASANY))) {
8220 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8225 case MONO_TYPE_STRING:
8226 case MONO_TYPE_VALUETYPE:
8227 case MONO_TYPE_CLASS:
8228 case MONO_TYPE_OBJECT:
8229 case MONO_TYPE_SZARRAY:
8230 case MONO_TYPE_BOOLEAN:
8231 emit_marshal (&m, argnum, t, spec, tmp_locals [i], NULL, MARSHAL_ACTION_CONV_OUT);
8236 if (!MONO_TYPE_IS_VOID(sig->ret))
8237 mono_mb_emit_ldloc (mb, 3);
8239 mono_mb_emit_byte (mb, CEE_RET);
8243 * mono_marshal_get_native_wrapper:
8244 * @method: The MonoMethod to wrap.
8245 * @check_exceptions: Whenever to check for pending exceptions
8247 * generates IL code for the pinvoke wrapper (the generated method
8248 * calls the unmanaged code in piinfo->addr)
8251 mono_marshal_get_native_wrapper (MonoMethod *method, gboolean check_exceptions)
8253 MonoMethodSignature *sig, *csig;
8254 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
8255 MonoMethodBuilder *mb;
8256 MonoMarshalSpec **mspecs;
8259 gboolean pinvoke = FALSE;
8262 const char *exc_class = "MissingMethodException";
8263 const char *exc_arg = NULL;
8265 g_assert (method != NULL);
8266 g_assert (mono_method_signature (method)->pinvoke);
8268 cache = method->klass->image->native_wrapper_cache;
8269 if ((res = mono_marshal_find_in_cache (cache, method)))
8272 if (MONO_CLASS_IS_IMPORT (method->klass))
8273 return cominterop_get_native_wrapper (method);
8275 sig = mono_method_signature (method);
8277 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) &&
8278 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
8281 if (!piinfo->addr) {
8283 mono_lookup_pinvoke_call (method, &exc_class, &exc_arg);
8285 piinfo->addr = mono_lookup_internal_call (method);
8288 /* hack - redirect certain string constructors to CreateString */
8289 if (piinfo->addr == ves_icall_System_String_ctor_RedirectToCreateString) {
8290 g_assert (!pinvoke);
8291 g_assert (method->string_ctor);
8292 g_assert (sig->hasthis);
8294 /* CreateString returns a value */
8295 csig = signature_dup (method->klass->image, sig);
8296 csig->ret = &mono_defaults.string_class->byval_arg;
8300 while ((res = mono_class_get_methods (mono_defaults.string_class, &iter))) {
8301 if (!strcmp ("CreateString", res->name) &&
8302 mono_metadata_signature_equal (csig, mono_method_signature (res))) {
8304 g_assert (!(res->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL));
8305 g_assert (!(res->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL));
8307 /* create a wrapper to preserve .ctor in stack trace */
8308 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_MANAGED);
8310 mono_mb_emit_byte (mb, CEE_LDARG_0);
8311 for (i = 1; i <= csig->param_count; i++)
8312 mono_mb_emit_ldarg (mb, i);
8313 mono_mb_emit_managed_call (mb, res, NULL);
8314 mono_mb_emit_byte (mb, CEE_RET);
8316 /* use native_wrapper_cache because internal calls are looked up there */
8317 res = mono_mb_create_and_cache (cache, method,
8318 mb, csig, csig->param_count + 1);
8326 /* exception will be thrown */
8327 piinfo->addr = NULL;
8328 g_warning ("cannot find CreateString for .ctor");
8331 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8333 mb->method->save_lmf = 1;
8335 if (!piinfo->addr) {
8336 mono_mb_emit_exception (mb, exc_class, exc_arg);
8337 csig = signature_dup (method->klass->image, sig);
8339 res = mono_mb_create_and_cache (cache, method,
8340 mb, csig, csig->param_count + 16);
8345 /* internal calls: we simply push all arguments and call the method (no conversions) */
8346 if (method->iflags & (METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL | METHOD_IMPL_ATTRIBUTE_RUNTIME)) {
8348 /* hack - string constructors returns a value */
8349 if (method->string_ctor) {
8350 csig = signature_dup (method->klass->image, sig);
8351 csig->ret = &mono_defaults.string_class->byval_arg;
8356 mono_mb_emit_byte (mb, CEE_LDARG_0);
8358 for (i = 0; i < sig->param_count; i++)
8359 mono_mb_emit_ldarg (mb, i + sig->hasthis);
8361 g_assert (piinfo->addr);
8362 mono_mb_emit_native_call (mb, csig, piinfo->addr);
8363 if (check_exceptions)
8364 emit_thread_interrupt_checkpoint (mb);
8365 mono_mb_emit_byte (mb, CEE_RET);
8367 csig = signature_dup (method->klass->image, csig);
8369 res = mono_mb_create_and_cache (cache, method,
8370 mb, csig, csig->param_count + 16);
8377 mspecs = g_new (MonoMarshalSpec*, sig->param_count + 1);
8378 mono_method_get_marshal_info (method, mspecs);
8380 mono_marshal_emit_native_wrapper (mb->method->klass->image, mb, sig, piinfo, mspecs, piinfo->addr, check_exceptions);
8382 csig = signature_dup (method->klass->image, sig);
8384 res = mono_mb_create_and_cache (cache, method,
8385 mb, csig, csig->param_count + 16);
8388 for (i = sig->param_count; i >= 0; i--)
8390 mono_metadata_free_marshal_spec (mspecs [i]);
8393 /* printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (res, TRUE), mono_disasm_code (0, res, ((MonoMethodNormal*)res)->header->code, ((MonoMethodNormal*)res)->header->code + ((MonoMethodNormal*)res)->header->code_size)); */
8399 * mono_marshal_get_native_func_wrapper:
8400 * @image: The image to use for memory allocation and for looking up custom marshallers.
8401 * @sig: The signature of the function
8402 * @func: The native function to wrap
8404 * Returns a wrapper method around native functions, similar to the pinvoke
8408 mono_marshal_get_native_func_wrapper (MonoImage *image, MonoMethodSignature *sig,
8409 MonoMethodPInvoke *piinfo, MonoMarshalSpec **mspecs, gpointer func)
8411 MonoMethodSignature *csig;
8413 MonoMethodBuilder *mb;
8418 cache = image->native_wrapper_cache;
8419 if ((res = mono_marshal_find_in_cache (cache, func)))
8422 name = g_strdup_printf ("wrapper_native_%p", func);
8423 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_MANAGED_TO_NATIVE);
8424 mb->method->save_lmf = 1;
8426 mono_marshal_emit_native_wrapper (image, mb, sig, piinfo, mspecs, func, TRUE);
8428 csig = signature_dup (image, sig);
8430 res = mono_mb_create_and_cache (cache, func,
8431 mb, csig, csig->param_count + 16);
8434 /* printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (res, TRUE), mono_disasm_code (0, res, ((MonoMethodNormal*)res)->header->code, ((MonoMethodNormal*)res)->header->code + ((MonoMethodNormal*)res)->header->code_size)); */
8439 /* FIXME: moving GC */
8441 mono_marshal_emit_managed_wrapper (MonoMethodBuilder *mb, MonoMethodSignature *invoke_sig, MonoMarshalSpec **mspecs, EmitMarshalContext* m, MonoMethod *method, MonoObject* this)
8443 MonoMethodSignature *sig, *csig;
8449 /* allocate local 0 (pointer) src_ptr */
8450 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8451 /* allocate local 1 (pointer) dst_ptr */
8452 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
8453 /* allocate local 2 (boolean) delete_old */
8454 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
8456 if (!MONO_TYPE_IS_VOID(sig->ret)) {
8457 /* allocate local 3 to store the return value */
8458 mono_mb_add_local (mb, sig->ret);
8461 mono_mb_emit_icon (mb, 0);
8462 mono_mb_emit_stloc (mb, 2);
8464 /* fixme: howto handle this ? */
8467 /* FIXME: need a solution for the moving GC here */
8468 mono_mb_emit_ptr (mb, this);
8471 g_assert_not_reached ();
8475 /* we first do all conversions */
8476 tmp_locals = alloca (sizeof (int) * sig->param_count);
8477 for (i = 0; i < sig->param_count; i ++) {
8478 MonoType *t = sig->params [i];
8481 case MONO_TYPE_OBJECT:
8482 case MONO_TYPE_CLASS:
8483 case MONO_TYPE_VALUETYPE:
8484 case MONO_TYPE_ARRAY:
8485 case MONO_TYPE_SZARRAY:
8486 case MONO_TYPE_STRING:
8487 tmp_locals [i] = emit_marshal (m, i, sig->params [i], mspecs [i + 1], 0, &csig->params [i], MARSHAL_ACTION_MANAGED_CONV_IN);
8496 emit_thread_interrupt_checkpoint (mb);
8498 for (i = 0; i < sig->param_count; i++) {
8499 MonoType *t = sig->params [i];
8501 if (tmp_locals [i]) {
8503 mono_mb_emit_ldloc_addr (mb, tmp_locals [i]);
8505 mono_mb_emit_ldloc (mb, tmp_locals [i]);
8508 mono_mb_emit_ldarg (mb, i);
8511 mono_mb_emit_managed_call (mb, method, NULL);
8513 if (mspecs [0] && mspecs [0]->native == MONO_NATIVE_CUSTOM) {
8514 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8517 if (!sig->ret->byref) {
8518 switch (sig->ret->type) {
8519 case MONO_TYPE_VOID:
8521 case MONO_TYPE_BOOLEAN:
8535 case MONO_TYPE_OBJECT:
8536 mono_mb_emit_stloc (mb, 3);
8538 case MONO_TYPE_STRING:
8539 csig->ret = &mono_defaults.int_class->byval_arg;
8540 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8542 case MONO_TYPE_VALUETYPE:
8543 case MONO_TYPE_CLASS:
8544 case MONO_TYPE_SZARRAY:
8545 emit_marshal (m, 0, sig->ret, mspecs [0], 0, NULL, MARSHAL_ACTION_MANAGED_CONV_RESULT);
8548 g_warning ("return type 0x%02x unknown", sig->ret->type);
8549 g_assert_not_reached ();
8552 mono_mb_emit_stloc (mb, 3);
8555 /* Convert byref arguments back */
8556 for (i = 0; i < sig->param_count; i ++) {
8557 MonoType *t = sig->params [i];
8558 MonoMarshalSpec *spec = mspecs [i + 1];
8560 if (spec && spec->native == MONO_NATIVE_CUSTOM) {
8561 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8563 else if (t->byref) {
8565 case MONO_TYPE_CLASS:
8566 case MONO_TYPE_VALUETYPE:
8567 case MONO_TYPE_OBJECT:
8568 emit_marshal (m, i, t, mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8572 else if (invoke_sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT) {
8573 /* The [Out] information is encoded in the delegate signature */
8575 case MONO_TYPE_SZARRAY:
8576 case MONO_TYPE_CLASS:
8577 case MONO_TYPE_VALUETYPE:
8578 emit_marshal (m, i, invoke_sig->params [i], mspecs [i + 1], tmp_locals [i], NULL, MARSHAL_ACTION_MANAGED_CONV_OUT);
8581 g_assert_not_reached ();
8586 if (m->retobj_var) {
8587 mono_mb_emit_ldloc (mb, m->retobj_var);
8588 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8589 mono_mb_emit_op (mb, CEE_MONO_RETOBJ, m->retobj_class);
8592 if (!MONO_TYPE_IS_VOID(sig->ret))
8593 mono_mb_emit_ldloc (mb, 3);
8594 mono_mb_emit_byte (mb, CEE_RET);
8600 * generates IL code to call managed methods from unmanaged code
8603 mono_marshal_get_managed_wrapper (MonoMethod *method, MonoClass *delegate_klass, MonoObject *this)
8605 static MonoClass *UnmanagedFunctionPointerAttribute;
8606 MonoMethodSignature *sig, *csig, *invoke_sig;
8607 MonoMethodBuilder *mb;
8608 MonoMethod *res, *invoke;
8609 MonoMarshalSpec **mspecs;
8610 MonoMethodPInvoke piinfo;
8613 EmitMarshalContext m;
8615 g_assert (method != NULL);
8616 g_assert (!mono_method_signature (method)->pinvoke);
8619 * FIXME: Should cache the method+delegate type pair, since the same method
8620 * could be called with different delegates, thus different marshalling
8623 cache = method->klass->image->managed_wrapper_cache;
8624 if (!this && (res = mono_marshal_find_in_cache (cache, method)))
8627 invoke = mono_class_get_method_from_name (delegate_klass, "Invoke", mono_method_signature (method)->param_count);
8628 invoke_sig = mono_method_signature (invoke);
8630 mspecs = g_new0 (MonoMarshalSpec*, mono_method_signature (invoke)->param_count + 1);
8631 mono_method_get_marshal_info (invoke, mspecs);
8633 sig = mono_method_signature (method);
8635 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
8638 /* we copy the signature, so that we can modify it */
8640 /* Need to free this later */
8641 csig = mono_metadata_signature_dup (sig);
8643 csig = signature_dup (method->klass->image, sig);
8652 m.image = method->klass->image;
8654 #ifdef PLATFORM_WIN32
8656 * Under windows, delegates passed to native code must use the STDCALL
8657 * calling convention.
8659 csig->call_convention = MONO_CALL_STDCALL;
8662 /* Change default calling convention if needed */
8663 /* Why is this a modopt ? */
8664 if (invoke_sig->ret && invoke_sig->ret->num_mods) {
8665 for (i = 0; i < invoke_sig->ret->num_mods; ++i) {
8666 MonoClass *cmod_class = mono_class_get (delegate_klass->image, invoke_sig->ret->modifiers [i].token);
8667 g_assert (cmod_class);
8668 if ((cmod_class->image == mono_defaults.corlib) && !strcmp (cmod_class->name_space, "System.Runtime.CompilerServices")) {
8669 if (!strcmp (cmod_class->name, "CallConvCdecl"))
8670 csig->call_convention = MONO_CALL_C;
8671 else if (!strcmp (cmod_class->name, "CallConvStdcall"))
8672 csig->call_convention = MONO_CALL_STDCALL;
8673 else if (!strcmp (cmod_class->name, "CallConvFastcall"))
8674 csig->call_convention = MONO_CALL_FASTCALL;
8675 else if (!strcmp (cmod_class->name, "CallConvThiscall"))
8676 csig->call_convention = MONO_CALL_THISCALL;
8681 /* Handle the UnmanagedFunctionPointerAttribute */
8682 if (!UnmanagedFunctionPointerAttribute)
8683 UnmanagedFunctionPointerAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "UnmanagedFunctionPointerAttribute");
8685 /* The attribute is only available in Net 2.0 */
8686 if (UnmanagedFunctionPointerAttribute) {
8687 MonoReflectionUnmanagedFunctionPointerAttribute *attr;
8688 MonoCustomAttrInfo *cinfo;
8691 * The pinvoke attributes are stored in a real custom attribute so we have to
8694 cinfo = mono_custom_attrs_from_class (delegate_klass);
8696 attr = (MonoReflectionUnmanagedFunctionPointerAttribute*)mono_custom_attrs_get_attr (cinfo, UnmanagedFunctionPointerAttribute);
8698 memset (&piinfo, 0, sizeof (piinfo));
8700 piinfo.piflags = (attr->call_conv << 8) | (attr->charset ? (attr->charset - 1) * 2 : 1) | attr->set_last_error;
8702 csig->call_convention = attr->call_conv - 1;
8705 mono_custom_attrs_free (cinfo);
8709 mono_marshal_emit_managed_wrapper (mb, invoke_sig, mspecs, &m, method, this);
8712 res = mono_mb_create_and_cache (cache, method,
8713 mb, csig, sig->param_count + 16);
8716 res = mono_mb_create_method (mb, csig, sig->param_count + 16);
8720 for (i = mono_method_signature (invoke)->param_count; i >= 0; i--)
8722 mono_metadata_free_marshal_spec (mspecs [i]);
8725 /* printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (res, TRUE), mono_disasm_code (0, res, ((MonoMethodNormal*)res)->header->code, ((MonoMethodNormal*)res)->header->code + ((MonoMethodNormal*)res)->header->code_size)); */
8730 static MonoReflectionType *
8731 type_from_handle (MonoType *handle)
8733 MonoDomain *domain = mono_domain_get ();
8734 MonoClass *klass = mono_class_from_mono_type (handle);
8736 MONO_ARCH_SAVE_REGS;
8738 mono_class_init (klass);
8739 return mono_type_get_object (domain, handle);
8743 * mono_marshal_get_isinst:
8744 * @klass: the type of the field
8746 * This method generates a function which can be used to check if an object is
8747 * an instance of the given type, icluding the case where the object is a proxy.
8748 * The generated function has the following signature:
8749 * MonoObject* __isinst_wrapper_ (MonoObject *obj)
8752 mono_marshal_get_isinst (MonoClass *klass)
8754 static MonoMethodSignature *isint_sig = NULL;
8757 int pos_was_ok, pos_failed, pos_end, pos_end2;
8759 MonoMethodBuilder *mb;
8761 cache = klass->image->isinst_cache;
8762 if ((res = mono_marshal_find_in_cache (cache, klass)))
8766 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8767 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8768 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8769 isint_sig->pinvoke = 0;
8772 name = g_strdup_printf ("__isinst_wrapper_%s", klass->name);
8773 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_ISINST);
8776 mb->method->save_lmf = 1;
8778 /* check if the object is a proxy that needs special cast */
8779 mono_mb_emit_ldarg (mb, 0);
8780 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8781 mono_mb_emit_op (mb, CEE_MONO_CISINST, klass);
8783 /* The result of MONO_ISINST can be:
8784 0) the type check succeeded
8785 1) the type check did not succeed
8786 2) a CanCastTo call is needed */
8788 mono_mb_emit_byte (mb, CEE_DUP);
8789 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8791 mono_mb_emit_byte (mb, CEE_LDC_I4_2);
8792 pos_failed = mono_mb_emit_branch (mb, CEE_BNE_UN);
8794 /* get the real proxy from the transparent proxy*/
8796 mono_mb_emit_ldarg (mb, 0);
8797 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8798 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8802 mono_mb_patch_branch (mb, pos_failed);
8803 mono_mb_emit_byte (mb, CEE_LDNULL);
8804 pos_end2 = mono_mb_emit_branch (mb, CEE_BR);
8808 mono_mb_patch_branch (mb, pos_was_ok);
8809 mono_mb_emit_byte (mb, CEE_POP);
8810 mono_mb_emit_ldarg (mb, 0);
8814 mono_mb_patch_branch (mb, pos_end);
8815 mono_mb_patch_branch (mb, pos_end2);
8816 mono_mb_emit_byte (mb, CEE_RET);
8818 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8825 * mono_marshal_get_castclass:
8826 * @klass: the type of the field
8828 * This method generates a function which can be used to cast an object to
8829 * an instance of the given type, icluding the case where the object is a proxy.
8830 * The generated function has the following signature:
8831 * MonoObject* __castclass_wrapper_ (MonoObject *obj)
8834 mono_marshal_get_castclass (MonoClass *klass)
8836 static MonoMethodSignature *castclass_sig = NULL;
8839 int pos_was_ok, pos_was_ok2;
8841 MonoMethodBuilder *mb;
8843 cache = klass->image->castclass_cache;
8844 if ((res = mono_marshal_find_in_cache (cache, klass)))
8847 if (!castclass_sig) {
8848 castclass_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8849 castclass_sig->params [0] = &mono_defaults.object_class->byval_arg;
8850 castclass_sig->ret = &mono_defaults.object_class->byval_arg;
8851 castclass_sig->pinvoke = 0;
8854 name = g_strdup_printf ("__castclass_wrapper_%s", klass->name);
8855 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_CASTCLASS);
8858 mb->method->save_lmf = 1;
8860 /* check if the object is a proxy that needs special cast */
8861 mono_mb_emit_ldarg (mb, 0);
8862 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
8863 mono_mb_emit_op (mb, CEE_MONO_CCASTCLASS, klass);
8865 /* The result of MONO_ISINST can be:
8866 0) the cast is valid
8867 1) cast of unknown proxy type
8868 or an exception if the cast is is invalid
8871 pos_was_ok = mono_mb_emit_branch (mb, CEE_BRFALSE);
8873 /* get the real proxy from the transparent proxy*/
8875 mono_mb_emit_ldarg (mb, 0);
8876 mono_mb_emit_managed_call (mb, mono_marshal_get_proxy_cancast (klass), NULL);
8877 pos_was_ok2 = mono_mb_emit_branch (mb, CEE_BRTRUE);
8880 mono_mb_emit_exception (mb, "InvalidCastException", NULL);
8883 mono_mb_patch_branch (mb, pos_was_ok);
8884 mono_mb_patch_branch (mb, pos_was_ok2);
8885 mono_mb_emit_ldarg (mb, 0);
8888 mono_mb_emit_byte (mb, CEE_RET);
8890 res = mono_mb_create_and_cache (cache, klass, mb, castclass_sig, castclass_sig->param_count + 16);
8897 mono_marshal_get_proxy_cancast (MonoClass *klass)
8899 static MonoMethodSignature *isint_sig = NULL;
8902 int pos_failed, pos_end;
8904 MonoMethod *can_cast_to;
8905 MonoMethodDesc *desc;
8906 MonoMethodBuilder *mb;
8908 cache = klass->image->proxy_isinst_cache;
8909 if ((res = mono_marshal_find_in_cache (cache, klass)))
8913 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
8914 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
8915 isint_sig->ret = &mono_defaults.object_class->byval_arg;
8916 isint_sig->pinvoke = 0;
8919 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass->name);
8920 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
8923 mb->method->save_lmf = 1;
8925 /* get the real proxy from the transparent proxy*/
8926 mono_mb_emit_ldarg (mb, 0);
8927 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
8928 mono_mb_emit_byte (mb, CEE_LDIND_REF);
8930 /* get the reflection type from the type handle */
8931 mono_mb_emit_ptr (mb, &klass->byval_arg);
8932 mono_mb_emit_icall (mb, type_from_handle);
8934 mono_mb_emit_ldarg (mb, 0);
8936 /* make the call to CanCastTo (type, ob) */
8937 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
8938 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
8939 g_assert (can_cast_to);
8940 mono_method_desc_free (desc);
8941 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
8943 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
8945 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
8946 mono_mb_emit_ptr (mb, &klass->byval_arg);
8947 mono_mb_emit_icall (mb, type_from_handle);
8948 mono_mb_emit_ldarg (mb, 0);
8950 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
8951 emit_thread_interrupt_checkpoint (mb);
8953 mono_mb_emit_ldarg (mb, 0);
8954 pos_end = mono_mb_emit_branch (mb, CEE_BR);
8958 mono_mb_patch_branch (mb, pos_failed);
8959 mono_mb_emit_byte (mb, CEE_LDNULL);
8963 mono_mb_patch_branch (mb, pos_end);
8964 mono_mb_emit_byte (mb, CEE_RET);
8966 res = mono_mb_create_and_cache (cache, klass, mb, isint_sig, isint_sig->param_count + 16);
8973 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
8976 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
8977 klass = mono_class_from_mono_type (rtype->type);
8978 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
8982 * mono_marshal_get_struct_to_ptr:
8985 * generates IL code for StructureToPtr (object structure, IntPtr ptr, bool fDeleteOld)
8988 mono_marshal_get_struct_to_ptr (MonoClass *klass)
8990 MonoMethodBuilder *mb;
8991 static MonoMethod *stoptr = NULL;
8994 g_assert (klass != NULL);
8996 mono_marshal_load_type_info (klass);
8998 if (klass->marshal_info->str_to_ptr)
8999 return klass->marshal_info->str_to_ptr;
9002 stoptr = mono_class_get_method_from_name (mono_defaults.marshal_class, "StructureToPtr", 3);
9005 mb = mono_mb_new (klass, stoptr->name, MONO_WRAPPER_UNKNOWN);
9007 if (klass->blittable) {
9008 mono_mb_emit_byte (mb, CEE_LDARG_1);
9009 mono_mb_emit_byte (mb, CEE_LDARG_0);
9010 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9011 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9012 mono_mb_emit_byte (mb, CEE_PREFIX1);
9013 mono_mb_emit_byte (mb, CEE_CPBLK);
9016 /* allocate local 0 (pointer) src_ptr */
9017 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9018 /* allocate local 1 (pointer) dst_ptr */
9019 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9020 /* allocate local 2 (boolean) delete_old */
9021 mono_mb_add_local (mb, &mono_defaults.boolean_class->byval_arg);
9022 mono_mb_emit_byte (mb, CEE_LDARG_2);
9023 mono_mb_emit_stloc (mb, 2);
9025 /* initialize src_ptr to point to the start of object data */
9026 mono_mb_emit_byte (mb, CEE_LDARG_0);
9027 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9028 mono_mb_emit_stloc (mb, 0);
9030 /* initialize dst_ptr */
9031 mono_mb_emit_byte (mb, CEE_LDARG_1);
9032 mono_mb_emit_stloc (mb, 1);
9034 emit_struct_conv (mb, klass, FALSE);
9037 mono_mb_emit_byte (mb, CEE_RET);
9039 res = mono_mb_create_method (mb, mono_method_signature (stoptr), 0);
9042 klass->marshal_info->str_to_ptr = res;
9047 * mono_marshal_get_ptr_to_struct:
9050 * generates IL code for PtrToStructure (IntPtr src, object structure)
9053 mono_marshal_get_ptr_to_struct (MonoClass *klass)
9055 MonoMethodBuilder *mb;
9056 static MonoMethodSignature *ptostr = NULL;
9059 g_assert (klass != NULL);
9061 mono_marshal_load_type_info (klass);
9063 if (klass->marshal_info->ptr_to_str)
9064 return klass->marshal_info->ptr_to_str;
9067 /* Create the signature corresponding to
9068 static void PtrToStructure (IntPtr ptr, object structure);
9069 defined in class/corlib/System.Runtime.InteropServices/Marshal.cs */
9070 ptostr = mono_create_icall_signature ("void ptr object");
9072 mb = mono_mb_new (klass, "PtrToStructure", MONO_WRAPPER_UNKNOWN);
9074 if (klass->blittable) {
9075 mono_mb_emit_byte (mb, CEE_LDARG_1);
9076 mono_mb_emit_ldflda (mb, sizeof (MonoObject));
9077 mono_mb_emit_byte (mb, CEE_LDARG_0);
9078 mono_mb_emit_icon (mb, mono_class_value_size (klass, NULL));
9079 mono_mb_emit_byte (mb, CEE_PREFIX1);
9080 mono_mb_emit_byte (mb, CEE_CPBLK);
9083 /* allocate local 0 (pointer) src_ptr */
9084 mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9085 /* allocate local 1 (pointer) dst_ptr */
9086 mono_mb_add_local (mb, &klass->this_arg);
9088 /* initialize src_ptr to point to the start of object data */
9089 mono_mb_emit_byte (mb, CEE_LDARG_0);
9090 mono_mb_emit_stloc (mb, 0);
9092 /* initialize dst_ptr */
9093 mono_mb_emit_byte (mb, CEE_LDARG_1);
9094 mono_mb_emit_op (mb, CEE_UNBOX, klass);
9095 mono_mb_emit_stloc (mb, 1);
9097 emit_struct_conv (mb, klass, TRUE);
9100 mono_mb_emit_byte (mb, CEE_RET);
9102 res = mono_mb_create_method (mb, ptostr, 0);
9105 klass->marshal_info->ptr_to_str = res;
9110 * generates IL code for the synchronized wrapper: the generated method
9111 * calls METHOD while locking 'this' or the parent type.
9114 mono_marshal_get_synchronized_wrapper (MonoMethod *method)
9116 static MonoMethod *enter_method, *exit_method;
9117 MonoMethodSignature *sig;
9118 MonoExceptionClause *clause;
9119 MonoMethodHeader *header;
9120 MonoMethodBuilder *mb;
9123 int i, pos, this_local, ret_local = 0;
9127 if (method->wrapper_type == MONO_WRAPPER_SYNCHRONIZED)
9130 cache = method->klass->image->synchronized_cache;
9131 if ((res = mono_marshal_find_in_cache (cache, method)))
9134 sig = signature_dup (method->klass->image, mono_method_signature (method));
9137 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_SYNCHRONIZED);
9140 if (!MONO_TYPE_IS_VOID (sig->ret))
9141 ret_local = mono_mb_add_local (mb, sig->ret);
9144 this_local = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
9146 mono_loader_lock ();
9147 clause = mono_mempool_alloc0 (method->klass->image->mempool, sizeof (MonoExceptionClause));
9148 mono_loader_unlock ();
9149 clause->flags = MONO_EXCEPTION_CLAUSE_FINALLY;
9151 if (!enter_method) {
9152 MonoMethodDesc *desc;
9154 desc = mono_method_desc_new ("Monitor:Enter", FALSE);
9155 enter_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9156 g_assert (enter_method);
9157 mono_method_desc_free (desc);
9158 desc = mono_method_desc_new ("Monitor:Exit", FALSE);
9159 exit_method = mono_method_desc_search_in_class (desc, mono_defaults.monitor_class);
9160 g_assert (exit_method);
9161 mono_method_desc_free (desc);
9164 /* Push this or the type object */
9165 if (method->flags & METHOD_ATTRIBUTE_STATIC) {
9167 * GetTypeFromHandle isn't called as a managed method because it has
9168 * a funky calling sequence, e.g. ldtoken+GetTypeFromHandle gets
9169 * transformed into something else by the JIT.
9171 mono_mb_emit_ptr (mb, &method->klass->byval_arg);
9172 mono_mb_emit_icall (mb, type_from_handle);
9175 mono_mb_emit_ldarg (mb, 0);
9176 mono_mb_emit_stloc (mb, this_local);
9178 /* Call Monitor::Enter() */
9179 mono_mb_emit_ldloc (mb, this_local);
9180 mono_mb_emit_managed_call (mb, enter_method, NULL);
9182 clause->try_offset = mono_mb_get_label (mb);
9184 /* Call the method */
9186 mono_mb_emit_ldarg (mb, 0);
9187 for (i = 0; i < sig->param_count; i++)
9188 mono_mb_emit_ldarg (mb, i + (sig->hasthis == TRUE));
9190 /* this is needed to avoid recursion */
9191 mono_mb_emit_byte (mb, CEE_PREFIX1);
9192 mono_mb_emit_op (mb, CEE_LDFTN, method);
9193 mono_mb_emit_calli (mb, mono_method_signature (method));
9195 if (!MONO_TYPE_IS_VOID (sig->ret))
9196 mono_mb_emit_stloc (mb, ret_local);
9198 pos = mono_mb_emit_branch (mb, CEE_LEAVE);
9200 clause->try_len = mono_mb_get_pos (mb) - clause->try_offset;
9201 clause->handler_offset = mono_mb_get_label (mb);
9203 /* Call Monitor::Exit() */
9204 mono_mb_emit_ldloc (mb, this_local);
9205 /* mono_mb_emit_native_call (mb, exit_sig, mono_monitor_exit); */
9206 mono_mb_emit_managed_call (mb, exit_method, NULL);
9207 mono_mb_emit_byte (mb, CEE_ENDFINALLY);
9209 clause->handler_len = mono_mb_get_pos (mb) - clause->handler_offset;
9211 mono_mb_patch_branch (mb, pos);
9212 if (!MONO_TYPE_IS_VOID (sig->ret))
9213 mono_mb_emit_ldloc (mb, ret_local);
9214 mono_mb_emit_byte (mb, CEE_RET);
9216 res = mono_mb_create_and_cache (cache, method,
9217 mb, sig, sig->param_count + 16);
9220 header = ((MonoMethodNormal *)res)->header;
9221 header->num_clauses = 1;
9222 header->clauses = clause;
9229 * the returned method calls 'method' unboxing the this argument
9232 mono_marshal_get_unbox_wrapper (MonoMethod *method)
9234 MonoMethodSignature *sig = mono_method_signature (method);
9236 MonoMethodBuilder *mb;
9240 cache = method->klass->image->unbox_wrapper_cache;
9241 if ((res = mono_marshal_find_in_cache (cache, method)))
9244 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_UNBOX);
9246 g_assert (sig->hasthis);
9248 mono_mb_emit_ldarg (mb, 0);
9249 mono_mb_emit_icon (mb, sizeof (MonoObject));
9250 mono_mb_emit_byte (mb, CEE_ADD);
9251 for (i = 0; i < sig->param_count; ++i)
9252 mono_mb_emit_ldarg (mb, i + 1);
9253 mono_mb_emit_managed_call (mb, method, NULL);
9254 mono_mb_emit_byte (mb, CEE_RET);
9256 res = mono_mb_create_and_cache (cache, method,
9257 mb, sig, sig->param_count + 16);
9260 /* printf ("CODE FOR %s: \n%s.\n", mono_method_full_name (res, TRUE), mono_disasm_code (0, res, ((MonoMethodNormal*)res)->header->code, ((MonoMethodNormal*)res)->header->code + ((MonoMethodNormal*)res)->header->code_size)); */
9266 mono_marshal_get_stelemref ()
9268 static MonoMethod* ret = NULL;
9269 MonoMethodSignature *sig;
9270 MonoMethodBuilder *mb;
9272 guint32 b1, b2, b3, b4;
9275 int array_slot_addr;
9280 mb = mono_mb_new (mono_defaults.object_class, "stelemref", MONO_WRAPPER_STELEMREF);
9283 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
9285 /* void stelemref (void* array, int idx, void* value) */
9286 sig->ret = &mono_defaults.void_class->byval_arg;
9287 sig->params [0] = &mono_defaults.object_class->byval_arg;
9288 sig->params [1] = &mono_defaults.int_class->byval_arg; /* this is a natural sized int */
9289 sig->params [2] = &mono_defaults.object_class->byval_arg;
9291 aklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9292 vklass = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9293 array_slot_addr = mono_mb_add_local (mb, &mono_defaults.object_class->this_arg);
9297 <ldelema (bound check)>
9301 aklass = array->vtable->klass->element_class;
9302 vklass = value->vtable->klass;
9304 if (vklass->idepth < aklass->idepth)
9307 if (vklass->supertypes [aklass->idepth - 1] != aklass)
9311 *array_slot_addr = value;
9315 if (mono_object_isinst (value, aklass))
9318 throw new ArrayTypeMismatchException ();
9321 /* ldelema (implicit bound check) */
9322 mono_mb_emit_ldarg (mb, 0);
9323 mono_mb_emit_ldarg (mb, 1);
9324 mono_mb_emit_op (mb, CEE_LDELEMA, mono_defaults.object_class);
9325 mono_mb_emit_stloc (mb, array_slot_addr);
9327 /* if (!value) goto do_store */
9328 mono_mb_emit_ldarg (mb, 2);
9329 b1 = mono_mb_emit_branch (mb, CEE_BRFALSE);
9331 /* aklass = array->vtable->klass->element_class */
9332 mono_mb_emit_ldarg (mb, 0);
9333 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9334 mono_mb_emit_byte (mb, CEE_LDIND_I);
9335 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9336 mono_mb_emit_byte (mb, CEE_LDIND_I);
9337 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, element_class));
9338 mono_mb_emit_byte (mb, CEE_LDIND_I);
9339 mono_mb_emit_stloc (mb, aklass);
9341 /* vklass = value->vtable->klass */
9342 mono_mb_emit_ldarg (mb, 2);
9343 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoObject, vtable));
9344 mono_mb_emit_byte (mb, CEE_LDIND_I);
9345 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoVTable, klass));
9346 mono_mb_emit_byte (mb, CEE_LDIND_I);
9347 mono_mb_emit_stloc (mb, vklass);
9349 /* if (vklass->idepth < aklass->idepth) goto failue */
9350 mono_mb_emit_ldloc (mb, vklass);
9351 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9352 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9354 mono_mb_emit_ldloc (mb, aklass);
9355 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9356 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9358 b2 = mono_mb_emit_branch (mb, CEE_BLT_UN);
9360 /* if (vklass->supertypes [aklass->idepth - 1] != aklass) goto failure */
9361 mono_mb_emit_ldloc (mb, vklass);
9362 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, supertypes));
9363 mono_mb_emit_byte (mb, CEE_LDIND_I);
9365 mono_mb_emit_ldloc (mb, aklass);
9366 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoClass, idepth));
9367 mono_mb_emit_byte (mb, CEE_LDIND_U2);
9368 mono_mb_emit_icon (mb, 1);
9369 mono_mb_emit_byte (mb, CEE_SUB);
9370 mono_mb_emit_icon (mb, sizeof (void*));
9371 mono_mb_emit_byte (mb, CEE_MUL);
9372 mono_mb_emit_byte (mb, CEE_ADD);
9373 mono_mb_emit_byte (mb, CEE_LDIND_I);
9375 mono_mb_emit_ldloc (mb, aklass);
9377 b3 = mono_mb_emit_branch (mb, CEE_BNE_UN);
9379 copy_pos = mono_mb_get_label (mb);
9381 mono_mb_patch_branch (mb, b1);
9382 mono_mb_emit_ldloc (mb, array_slot_addr);
9383 mono_mb_emit_ldarg (mb, 2);
9384 mono_mb_emit_byte (mb, CEE_STIND_REF);
9386 mono_mb_emit_byte (mb, CEE_RET);
9389 mono_mb_patch_branch (mb, b2);
9390 mono_mb_patch_branch (mb, b3);
9392 mono_mb_emit_ldarg (mb, 2);
9393 mono_mb_emit_ldloc (mb, aklass);
9394 mono_mb_emit_icall (mb, mono_object_isinst);
9396 b4 = mono_mb_emit_branch (mb, CEE_BRTRUE);
9397 mono_mb_patch_addr (mb, b4, copy_pos - (b4 + 4));
9398 mono_mb_emit_exception (mb, "ArrayTypeMismatchException", NULL);
9400 mono_mb_emit_byte (mb, CEE_RET);
9401 ret = mono_mb_create_method (mb, sig, 4);
9412 /* LOCKING: vars accessed under the marshal lock */
9413 static ArrayElemAddr *elem_addr_cache = NULL;
9414 static int elem_addr_cache_size = 0;
9415 static int elem_addr_cache_next = 0;
9418 * mono_marshal_get_array_address:
9419 * @rank: rank of the array type
9420 * @elem_size: size in bytes of an element of an array.
9422 * Returns a MonoMethd that implements the code to get the address
9423 * of an element in a multi-dimenasional array of @rank dimensions.
9424 * The returned method takes an array as the first argument and then
9425 * @rank indexes for the @rank dimensions.
9428 mono_marshal_get_array_address (int rank, int elem_size)
9431 MonoMethodBuilder *mb;
9432 MonoMethodSignature *sig;
9433 int i, bounds, ind, realidx;
9434 int branch_pos, *branch_positions;
9438 mono_marshal_lock ();
9439 for (i = 0; i < elem_addr_cache_next; ++i) {
9440 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9441 ret = elem_addr_cache [i].method;
9445 mono_marshal_unlock ();
9449 branch_positions = g_new0 (int, rank);
9451 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1 + rank);
9453 /* void* address (void* array, int idx0, int idx1, int idx2, ...) */
9454 sig->ret = &mono_defaults.int_class->byval_arg;
9455 sig->params [0] = &mono_defaults.object_class->byval_arg;
9456 for (i = 0; i < rank; ++i) {
9457 sig->params [i + 1] = &mono_defaults.int32_class->byval_arg;
9460 mb = mono_mb_new (mono_defaults.object_class, "ElementAddr", MONO_WRAPPER_MANAGED_TO_MANAGED);
9462 bounds = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
9463 ind = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9464 realidx = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
9466 /* bounds = array->bounds; */
9467 mono_mb_emit_ldarg (mb, 0);
9468 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, bounds));
9469 mono_mb_emit_byte (mb, CEE_LDIND_I);
9470 mono_mb_emit_stloc (mb, bounds);
9472 /* ind is the overall element index, realidx is the partial index in a single dimension */
9473 /* ind = idx0 - bounds [0].lower_bound */
9474 mono_mb_emit_ldarg (mb, 1);
9475 mono_mb_emit_ldloc (mb, bounds);
9476 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9477 mono_mb_emit_byte (mb, CEE_ADD);
9478 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9479 mono_mb_emit_byte (mb, CEE_SUB);
9480 mono_mb_emit_stloc (mb, ind);
9481 /* if (ind >= bounds [0].length) goto exeception; */
9482 mono_mb_emit_ldloc (mb, ind);
9483 mono_mb_emit_ldloc (mb, bounds);
9484 mono_mb_emit_icon (mb, G_STRUCT_OFFSET (MonoArrayBounds, length));
9485 mono_mb_emit_byte (mb, CEE_ADD);
9486 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9487 /* note that we use unsigned comparison */
9488 branch_pos = mono_mb_emit_branch (mb, CEE_BGE_UN);
9490 /* For large ranks (> 4?) use a loop n IL later to reduce code size.
9491 * We could also decide to ignore the passed elem_size and get it
9492 * from the array object, to reduce the number of methods we generate:
9493 * the additional cost is 3 memory loads and a non-immediate mul.
9495 for (i = 1; i < rank; ++i) {
9496 /* realidx = idxi - bounds [i].lower_bound */
9497 mono_mb_emit_ldarg (mb, 1 + i);
9498 mono_mb_emit_ldloc (mb, bounds);
9499 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, lower_bound));
9500 mono_mb_emit_byte (mb, CEE_ADD);
9501 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9502 mono_mb_emit_byte (mb, CEE_SUB);
9503 mono_mb_emit_stloc (mb, realidx);
9504 /* if (realidx >= bounds [i].length) goto exeception; */
9505 mono_mb_emit_ldloc (mb, realidx);
9506 mono_mb_emit_ldloc (mb, bounds);
9507 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9508 mono_mb_emit_byte (mb, CEE_ADD);
9509 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9510 branch_positions [i] = mono_mb_emit_branch (mb, CEE_BGE_UN);
9511 /* ind = ind * bounds [i].length + realidx */
9512 mono_mb_emit_ldloc (mb, ind);
9513 mono_mb_emit_ldloc (mb, bounds);
9514 mono_mb_emit_icon (mb, (i * sizeof (MonoArrayBounds)) + G_STRUCT_OFFSET (MonoArrayBounds, length));
9515 mono_mb_emit_byte (mb, CEE_ADD);
9516 mono_mb_emit_byte (mb, CEE_LDIND_I4);
9517 mono_mb_emit_byte (mb, CEE_MUL);
9518 mono_mb_emit_ldloc (mb, realidx);
9519 mono_mb_emit_byte (mb, CEE_ADD);
9520 mono_mb_emit_stloc (mb, ind);
9523 /* return array->vector + ind * element_size */
9524 mono_mb_emit_ldarg (mb, 0);
9525 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoArray, vector));
9526 mono_mb_emit_ldloc (mb, ind);
9527 mono_mb_emit_icon (mb, elem_size);
9528 mono_mb_emit_byte (mb, CEE_MUL);
9529 mono_mb_emit_byte (mb, CEE_ADD);
9530 mono_mb_emit_byte (mb, CEE_RET);
9532 /* patch the branches to get here and throw */
9533 for (i = 1; i < rank; ++i) {
9534 mono_mb_patch_branch (mb, branch_positions [i]);
9536 mono_mb_patch_branch (mb, branch_pos);
9537 /* throw exception */
9538 mono_mb_emit_exception (mb, "IndexOutOfRangeException", NULL);
9540 g_free (branch_positions);
9541 ret = mono_mb_create_method (mb, sig, 4);
9544 /* cache the result */
9546 mono_marshal_lock ();
9547 for (i = 0; i < elem_addr_cache_next; ++i) {
9548 if (elem_addr_cache [i].rank == rank && elem_addr_cache [i].elem_size == elem_size) {
9549 /* FIXME: free ret */
9550 ret = elem_addr_cache [i].method;
9556 if (elem_addr_cache_next >= elem_addr_cache_size) {
9557 int new_size = elem_addr_cache_size + 4;
9558 ArrayElemAddr *new_array = g_new0 (ArrayElemAddr, new_size);
9559 memcpy (new_array, elem_addr_cache, elem_addr_cache_size * sizeof (ArrayElemAddr));
9560 g_free (elem_addr_cache);
9561 elem_addr_cache = new_array;
9562 elem_addr_cache_size = new_size;
9564 elem_addr_cache [elem_addr_cache_next].rank = rank;
9565 elem_addr_cache [elem_addr_cache_next].elem_size = elem_size;
9566 elem_addr_cache [elem_addr_cache_next].method = ret;
9568 mono_marshal_unlock ();
9573 mono_marshal_get_write_barrier (void)
9575 static MonoMethod* ret = NULL;
9576 MonoMethodSignature *sig;
9577 MonoMethodBuilder *mb;
9583 mb = mono_mb_new (mono_defaults.object_class, "writebarrier", MONO_WRAPPER_WRITE_BARRIER);
9585 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 2);
9587 /* void writebarrier (MonoObject** addr, MonoObject* obj) */
9588 sig->ret = &mono_defaults.void_class->byval_arg;
9589 sig->params [0] = &mono_defaults.object_class->this_arg;
9590 sig->params [1] = &mono_defaults.object_class->byval_arg;
9592 /* just the store right now: add an hook for the GC to use, maybe something
9593 * that can be used for stelemref as well
9594 * We need a write barrier variant to be used with struct copies as well, though
9595 * there are also other approaches possible, like writing a wrapper specific to
9596 * the struct or to the reference pattern in the struct...
9597 * Depending on the GC, we may want variants that take the object we store to
9598 * when it is available.
9600 mono_mb_emit_ldarg (mb, 0);
9601 mono_mb_emit_ldarg (mb, 1);
9602 mono_mb_emit_icall (mb, mono_gc_wbarrier_generic_store);
9603 /*mono_mb_emit_byte (mb, CEE_STIND_REF);*/
9605 mono_mb_emit_byte (mb, CEE_RET);
9607 ret = mono_mb_create_method (mb, sig, max_stack);
9613 mono_marshal_alloc (gulong size)
9617 #ifdef PLATFORM_WIN32
9618 res = CoTaskMemAlloc (size);
9620 res = g_try_malloc ((gulong)size);
9622 mono_gc_out_of_memory ((gulong)size);
9628 mono_marshal_free (gpointer ptr)
9630 #ifdef PLATFORM_WIN32
9631 CoTaskMemFree (ptr);
9638 mono_marshal_free_array (gpointer *ptr, int size)
9645 for (i = 0; i < size; i++)
9651 mono_marshal_string_to_utf16 (MonoString *s)
9653 return s ? mono_string_chars (s) : NULL;
9657 mono_marshal_string_to_utf16_copy (MonoString *s)
9662 gunichar2 *res = mono_marshal_alloc ((mono_string_length (s) * 2) + 2);
9663 memcpy (res, mono_string_chars (s), mono_string_length (s) * 2);
9664 res [mono_string_length (s)] = 0;
9670 * mono_marshal_set_last_error:
9672 * This function is invoked to set the last error value from a P/Invoke call
9673 * which has SetLastError set.
9676 mono_marshal_set_last_error (void)
9679 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (GetLastError ()));
9681 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (errno));
9686 mono_marshal_set_last_error_windows (int error)
9689 TlsSetValue (last_error_tls_id, GINT_TO_POINTER (error));
9694 ves_icall_System_Runtime_InteropServices_Marshal_copy_to_unmanaged (MonoArray *src, gint32 start_index,
9695 gpointer dest, gint32 length)
9700 MONO_ARCH_SAVE_REGS;
9702 MONO_CHECK_ARG_NULL (src);
9703 MONO_CHECK_ARG_NULL (dest);
9705 if (src->obj.vtable->klass->rank != 1)
9706 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9707 if (start_index < 0)
9708 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9710 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9711 if (start_index + length > mono_array_length (src))
9712 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9714 element_size = mono_array_element_size (src->obj.vtable->klass);
9716 /* no references should be involved */
9717 source_addr = mono_array_addr_with_size (src, element_size, start_index);
9719 memcpy (dest, source_addr, length * element_size);
9723 ves_icall_System_Runtime_InteropServices_Marshal_copy_from_unmanaged (gpointer src, gint32 start_index,
9724 MonoArray *dest, gint32 length)
9729 MONO_ARCH_SAVE_REGS;
9731 MONO_CHECK_ARG_NULL (src);
9732 MONO_CHECK_ARG_NULL (dest);
9734 if (dest->obj.vtable->klass->rank != 1)
9735 mono_raise_exception (mono_get_exception_argument ("array", "array is multi-dimensional"));
9736 if (start_index < 0)
9737 mono_raise_exception (mono_get_exception_argument ("startIndex", "Must be >= 0"));
9739 mono_raise_exception (mono_get_exception_argument ("length", "Must be >= 0"));
9740 if (start_index + length > mono_array_length (dest))
9741 mono_raise_exception (mono_get_exception_argument ("length", "start_index + length > array length"));
9743 element_size = mono_array_element_size (dest->obj.vtable->klass);
9745 /* no references should be involved */
9746 dest_addr = mono_array_addr_with_size (dest, element_size, start_index);
9748 memcpy (dest_addr, src, length * element_size);
9751 #if NO_UNALIGNED_ACCESS
9752 #define RETURN_UNALIGNED(type, addr) \
9755 memcpy(&val, p + offset, sizeof(val)); \
9758 #define WRITE_UNALIGNED(type, addr, val) \
9759 memcpy(addr, &val, sizeof(type))
9761 #define RETURN_UNALIGNED(type, addr) \
9762 return *(type*)(p + offset);
9763 #define WRITE_UNALIGNED(type, addr, val) \
9764 (*(type *)(addr) = (val))
9768 ves_icall_System_Runtime_InteropServices_Marshal_ReadIntPtr (gpointer ptr, gint32 offset)
9772 MONO_ARCH_SAVE_REGS;
9774 RETURN_UNALIGNED(gpointer, p + offset);
9778 ves_icall_System_Runtime_InteropServices_Marshal_ReadByte (gpointer ptr, gint32 offset)
9782 MONO_ARCH_SAVE_REGS;
9784 return *(unsigned char*)(p + offset);
9788 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt16 (gpointer ptr, gint32 offset)
9792 MONO_ARCH_SAVE_REGS;
9794 RETURN_UNALIGNED(gint16, p + offset);
9798 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt32 (gpointer ptr, gint32 offset)
9802 MONO_ARCH_SAVE_REGS;
9804 RETURN_UNALIGNED(gint32, p + offset);
9808 ves_icall_System_Runtime_InteropServices_Marshal_ReadInt64 (gpointer ptr, gint32 offset)
9812 MONO_ARCH_SAVE_REGS;
9814 RETURN_UNALIGNED(gint64, p + offset);
9818 ves_icall_System_Runtime_InteropServices_Marshal_WriteByte (gpointer ptr, gint32 offset, unsigned char val)
9822 MONO_ARCH_SAVE_REGS;
9824 *(unsigned char*)(p + offset) = val;
9828 ves_icall_System_Runtime_InteropServices_Marshal_WriteIntPtr (gpointer ptr, gint32 offset, gpointer val)
9832 MONO_ARCH_SAVE_REGS;
9834 WRITE_UNALIGNED(gpointer, p + offset, val);
9838 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt16 (gpointer ptr, gint32 offset, gint16 val)
9842 MONO_ARCH_SAVE_REGS;
9844 WRITE_UNALIGNED(gint16, p + offset, val);
9848 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt32 (gpointer ptr, gint32 offset, gint32 val)
9852 MONO_ARCH_SAVE_REGS;
9854 WRITE_UNALIGNED(gint32, p + offset, val);
9858 ves_icall_System_Runtime_InteropServices_Marshal_WriteInt64 (gpointer ptr, gint32 offset, gint64 val)
9862 MONO_ARCH_SAVE_REGS;
9864 WRITE_UNALIGNED(gint64, p + offset, val);
9868 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi (char *ptr)
9870 MONO_ARCH_SAVE_REGS;
9875 return mono_string_new (mono_domain_get (), ptr);
9879 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringAnsi_len (char *ptr, gint32 len)
9881 MONO_ARCH_SAVE_REGS;
9884 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9885 g_assert_not_reached ();
9888 return mono_string_new_len (mono_domain_get (), ptr, len);
9893 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni (guint16 *ptr)
9895 MonoDomain *domain = mono_domain_get ();
9899 MONO_ARCH_SAVE_REGS;
9907 return mono_string_new_utf16 (domain, ptr, len);
9911 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringUni_len (guint16 *ptr, gint32 len)
9913 MonoDomain *domain = mono_domain_get ();
9915 MONO_ARCH_SAVE_REGS;
9918 mono_raise_exception (mono_get_exception_argument_null ("ptr"));
9919 g_assert_not_reached ();
9922 return mono_string_new_utf16 (domain, ptr, len);
9927 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
9929 MONO_ARCH_SAVE_REGS;
9931 return mono_string_from_bstr(ptr);
9935 ves_icall_System_Runtime_InteropServices_Marshal_StringToBSTR (MonoString* ptr)
9937 MONO_ARCH_SAVE_REGS;
9939 return mono_string_to_bstr(ptr);
9944 int (STDCALL *QueryInterface)(gpointer pUnk, gpointer riid, gpointer* ppv);
9945 int (STDCALL *AddRef)(gpointer pUnk);
9946 int (STDCALL *Release)(gpointer pUnk);
9950 ves_icall_System_Runtime_InteropServices_Marshal_FreeBSTR (gpointer ptr)
9952 MONO_ARCH_SAVE_REGS;
9954 mono_free_bstr (ptr);
9958 ves_icall_System_Runtime_InteropServices_Marshal_AddRefInternal (gpointer pUnk)
9961 return (*(MonoIUnknown**)pUnk)->AddRef(pUnk);
9965 ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (gpointer pUnk, gpointer riid, gpointer* ppv)
9968 return (*(MonoIUnknown**)pUnk)->QueryInterface(pUnk, riid, ppv);
9972 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (gpointer pUnk)
9975 return (*(MonoIUnknown**)pUnk)->Release(pUnk);
9979 cominterop_get_idispatch_for_object (MonoObject* object)
9984 if (cominterop_object_is_rcw (object)) {
9985 return cominterop_get_interface (((MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp)->com_object,
9986 mono_defaults.idispatch_class, TRUE);
9989 return cominterop_get_ccw (object, mono_defaults.idispatch_class);
9994 ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal (MonoObject* object)
9999 if (cominterop_object_is_rcw (object)) {
10000 MonoClass *klass = NULL;
10001 MonoRealProxy* real_proxy = NULL;
10004 klass = mono_object_class (object);
10005 if (klass != mono_defaults.transparent_proxy_class) {
10006 g_assert_not_reached ();
10010 real_proxy = ((MonoTransparentProxy*)object)->rp;
10012 g_assert_not_reached ();
10016 klass = mono_object_class (real_proxy);
10017 if (klass != mono_defaults.com_interop_proxy_class) {
10018 g_assert_not_reached ();
10022 if (!((MonoComInteropProxy*)real_proxy)->com_object) {
10023 g_assert_not_reached ();
10027 return ((MonoComInteropProxy*)real_proxy)->com_object->iunknown;
10030 return cominterop_get_ccw (object, mono_defaults.iunknown_class);
10035 ves_icall_System_Runtime_InteropServices_Marshal_GetObjectForCCW (void* pUnk)
10037 MonoObject* object = NULL;
10042 /* see if it is a CCW */
10043 object = cominterop_get_ccw_object ((MonoCCWInterface*)pUnk, TRUE);
10049 ves_icall_System_Runtime_InteropServices_Marshal_GetIDispatchForObjectInternal (MonoObject* object)
10051 return cominterop_get_idispatch_for_object (object);
10055 ves_icall_System_Runtime_InteropServices_Marshal_GetCCW (MonoObject* object, MonoReflectionType* type)
10057 MonoClass* klass = NULL;
10060 g_assert (type->type);
10061 klass = mono_type_get_class (type->type);
10063 itf = cominterop_get_ccw (object, klass);
10070 ves_icall_System_Runtime_InteropServices_Marshal_IsComObject (MonoObject* object)
10072 return (MonoBoolean)cominterop_object_is_rcw (object);
10076 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseComObjectInternal (MonoObject* object)
10078 MonoComInteropProxy* proxy = NULL;
10079 gint32 ref_count = 0;
10082 g_assert (cominterop_object_is_rcw (object));
10084 proxy = (MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp;
10087 ref_count = InterlockedDecrement (&proxy->ref_count);
10088 g_assert (ref_count >= 0);
10090 if (ref_count == 0)
10091 ves_icall_System_ComObject_ReleaseInterfaces (proxy->com_object);
10097 ves_icall_System_Runtime_InteropServices_Marshal_GetComSlotForMethodInfoInternal (MonoReflectionMethod *m)
10099 MONO_ARCH_SAVE_REGS;
10101 return cominterop_get_com_slot_for_method (m->method);
10105 ves_icall_System_Runtime_InteropServices_Marshal_GetLastWin32Error (void)
10107 MONO_ARCH_SAVE_REGS;
10109 return (GPOINTER_TO_INT (TlsGetValue (last_error_tls_id)));
10113 ves_icall_System_Runtime_InteropServices_Marshal_SizeOf (MonoReflectionType *rtype)
10119 MONO_ARCH_SAVE_REGS;
10121 MONO_CHECK_ARG_NULL (rtype);
10123 type = rtype->type;
10124 klass = mono_class_from_mono_type (type);
10125 layout = (klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK);
10127 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10129 MonoException *exc;
10131 msg = g_strdup_printf ("Type %s cannot be marshaled as an unmanaged structure.", klass->name);
10132 exc = mono_get_exception_argument ("t", msg);
10134 mono_raise_exception (exc);
10138 return mono_class_native_size (klass, NULL);
10142 ves_icall_System_Runtime_InteropServices_Marshal_StructureToPtr (MonoObject *obj, gpointer dst, MonoBoolean delete_old)
10144 MonoMethod *method;
10147 MONO_ARCH_SAVE_REGS;
10149 MONO_CHECK_ARG_NULL (obj);
10150 MONO_CHECK_ARG_NULL (dst);
10152 method = mono_marshal_get_struct_to_ptr (obj->vtable->klass);
10156 pa [2] = &delete_old;
10158 mono_runtime_invoke (method, NULL, pa, NULL);
10162 ptr_to_structure (gpointer src, MonoObject *dst)
10164 MonoMethod *method;
10167 method = mono_marshal_get_ptr_to_struct (dst->vtable->klass);
10172 mono_runtime_invoke (method, NULL, pa, NULL);
10176 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure (gpointer src, MonoObject *dst)
10180 MONO_ARCH_SAVE_REGS;
10182 MONO_CHECK_ARG_NULL (src);
10183 MONO_CHECK_ARG_NULL (dst);
10185 t = mono_type_get_underlying_type (mono_class_get_type (dst->vtable->klass));
10187 if (t->type == MONO_TYPE_VALUETYPE) {
10188 MonoException *exc;
10191 tmp = g_strdup_printf ("Destination is a boxed value type.");
10192 exc = mono_get_exception_argument ("dst", tmp);
10195 mono_raise_exception (exc);
10199 ptr_to_structure (src, dst);
10203 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStructure_type (gpointer src, MonoReflectionType *type)
10205 MonoDomain *domain = mono_domain_get ();
10208 MONO_ARCH_SAVE_REGS;
10210 MONO_CHECK_ARG_NULL (src);
10211 MONO_CHECK_ARG_NULL (type);
10213 res = mono_object_new (domain, mono_class_from_mono_type (type->type));
10215 ptr_to_structure (src, res);
10221 ves_icall_System_Runtime_InteropServices_Marshal_OffsetOf (MonoReflectionType *type, MonoString *field_name)
10223 MonoMarshalType *info;
10226 int match_index = -1;
10228 MONO_ARCH_SAVE_REGS;
10230 MONO_CHECK_ARG_NULL (type);
10231 MONO_CHECK_ARG_NULL (field_name);
10233 fname = mono_string_to_utf8 (field_name);
10234 klass = mono_class_from_mono_type (type->type);
10236 while (klass && match_index == -1) {
10237 MonoClassField* field;
10239 gpointer iter = NULL;
10240 while ((field = mono_class_get_fields (klass, &iter))) {
10241 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10243 if (!strcmp (fname, field->name)) {
10250 if (match_index == -1)
10251 klass = klass->parent;
10256 if(match_index == -1) {
10257 MonoException* exc;
10260 /* Get back original class instance */
10261 klass = mono_class_from_mono_type (type->type);
10263 tmp = g_strdup_printf ("Field passed in is not a marshaled member of the type %s", klass->name);
10264 exc = mono_get_exception_argument ("fieldName", tmp);
10267 mono_raise_exception ((MonoException*)exc);
10270 info = mono_marshal_load_type_info (klass);
10271 return info->fields [match_index].offset;
10275 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalAnsi (MonoString *string)
10277 MONO_ARCH_SAVE_REGS;
10279 return mono_string_to_utf8 (string);
10283 ves_icall_System_Runtime_InteropServices_Marshal_StringToHGlobalUni (MonoString *string)
10285 MONO_ARCH_SAVE_REGS;
10287 if (string == NULL)
10290 gunichar2 *res = g_malloc ((mono_string_length (string) + 1) * 2);
10291 memcpy (res, mono_string_chars (string), mono_string_length (string) * 2);
10292 res [mono_string_length (string)] = 0;
10298 mono_struct_delete_old (MonoClass *klass, char *ptr)
10300 MonoMarshalType *info;
10303 info = mono_marshal_load_type_info (klass);
10305 for (i = 0; i < info->num_fields; i++) {
10306 MonoMarshalNative ntype;
10307 MonoMarshalConv conv;
10308 MonoType *ftype = info->fields [i].field->type;
10311 if (ftype->attrs & FIELD_ATTRIBUTE_STATIC)
10314 ntype = mono_type_to_unmanaged (ftype, info->fields [i].mspec, TRUE,
10315 klass->unicode, &conv);
10317 cpos = ptr + info->fields [i].offset;
10320 case MONO_MARSHAL_CONV_NONE:
10321 if (MONO_TYPE_ISSTRUCT (ftype)) {
10322 mono_struct_delete_old (ftype->data.klass, cpos);
10326 case MONO_MARSHAL_CONV_STR_LPWSTR:
10327 /* We assume this field points inside a MonoString */
10329 case MONO_MARSHAL_CONV_STR_LPTSTR:
10330 #ifdef PLATFORM_WIN32
10331 /* We assume this field points inside a MonoString
10335 case MONO_MARSHAL_CONV_STR_LPSTR:
10336 case MONO_MARSHAL_CONV_STR_BSTR:
10337 case MONO_MARSHAL_CONV_STR_ANSIBSTR:
10338 case MONO_MARSHAL_CONV_STR_TBSTR:
10339 mono_marshal_free (*(gpointer *)cpos);
10349 ves_icall_System_Runtime_InteropServices_Marshal_DestroyStructure (gpointer src, MonoReflectionType *type)
10353 MONO_ARCH_SAVE_REGS;
10355 MONO_CHECK_ARG_NULL (src);
10356 MONO_CHECK_ARG_NULL (type);
10358 klass = mono_class_from_mono_type (type->type);
10360 mono_struct_delete_old (klass, (char *)src);
10364 ves_icall_System_Runtime_InteropServices_Marshal_AllocHGlobal (int size)
10368 MONO_ARCH_SAVE_REGS;
10370 if ((gulong)size == 0)
10371 /* This returns a valid pointer for size 0 on MS.NET */
10374 #ifdef PLATFORM_WIN32
10375 res = GlobalAlloc (GMEM_FIXED, (gulong)size);
10377 res = g_try_malloc ((gulong)size);
10380 mono_gc_out_of_memory ((gulong)size);
10386 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocHGlobal (gpointer ptr, int size)
10391 mono_gc_out_of_memory ((gulong)size);
10395 #ifdef PLATFORM_WIN32
10396 res = GlobalReAlloc (ptr, (gulong)size, GMEM_MOVEABLE);
10398 res = g_try_realloc (ptr, (gulong)size);
10401 mono_gc_out_of_memory ((gulong)size);
10407 ves_icall_System_Runtime_InteropServices_Marshal_FreeHGlobal (void *ptr)
10409 MONO_ARCH_SAVE_REGS;
10411 #ifdef PLATFORM_WIN32
10419 ves_icall_System_Runtime_InteropServices_Marshal_AllocCoTaskMem (int size)
10421 MONO_ARCH_SAVE_REGS;
10423 #ifdef PLATFORM_WIN32
10424 return CoTaskMemAlloc (size);
10426 return g_try_malloc ((gulong)size);
10431 ves_icall_System_Runtime_InteropServices_Marshal_FreeCoTaskMem (void *ptr)
10433 MONO_ARCH_SAVE_REGS;
10435 #ifdef PLATFORM_WIN32
10436 CoTaskMemFree (ptr);
10443 ves_icall_System_Runtime_InteropServices_Marshal_ReAllocCoTaskMem (gpointer ptr, int size)
10445 MONO_ARCH_SAVE_REGS;
10447 #ifdef PLATFORM_WIN32
10448 return CoTaskMemRealloc (ptr, size);
10450 return g_try_realloc (ptr, (gulong)size);
10455 ves_icall_System_Runtime_InteropServices_Marshal_UnsafeAddrOfPinnedArrayElement (MonoArray *arrayobj, int index)
10457 return mono_array_addr_with_size (arrayobj, mono_array_element_size (arrayobj->obj.vtable->klass), index);
10461 ves_icall_System_Runtime_InteropServices_Marshal_GetDelegateForFunctionPointerInternal (void *ftn, MonoReflectionType *type)
10463 return mono_ftnptr_to_delegate (mono_type_get_class (type->type), ftn);
10466 /* Only used for COM RCWs */
10468 ves_icall_System_ComObject_CreateRCW (MonoReflectionType *type)
10471 MonoDomain *domain;
10474 MONO_ARCH_SAVE_REGS;
10476 domain = mono_object_domain (type);
10477 klass = mono_class_from_mono_type (type->type);
10479 /* call mono_object_new_alloc_specific instead of mono_object_new
10480 * because we want to actually create object. mono_object_new checks
10481 * to see if type is import and creates transparent proxy. this method
10482 * is called by the corresponding real proxy to create the real RCW.
10483 * Constructor does not need to be called. Will be called later.
10485 obj = mono_object_new_alloc_specific (mono_class_vtable (domain, klass));
10490 cominterop_finalizer (gpointer key, gpointer value, gpointer user_data)
10492 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (value);
10497 ves_icall_System_ComObject_ReleaseInterfaces (MonoComObject* obj)
10500 if (obj->itf_hash) {
10501 guint32 gchandle = 0;
10502 mono_cominterop_lock ();
10503 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, obj->iunknown));
10505 mono_gchandle_free (gchandle);
10506 g_hash_table_remove (rcw_hash, obj->iunknown);
10509 g_hash_table_foreach_remove (obj->itf_hash, cominterop_finalizer, NULL);
10510 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (obj->iunknown);
10511 obj->itf_hash = obj->iunknown = NULL;
10512 mono_cominterop_unlock ();
10517 ves_icall_System_ComObject_GetInterfaceInternal (MonoComObject* obj, MonoReflectionType* type, MonoBoolean throw_exception)
10519 return cominterop_get_interface (obj, mono_type_get_class (type->type), (gboolean)throw_exception);
10523 ves_icall_Mono_Interop_ComInteropProxy_AddProxy (gpointer pUnk, MonoComInteropProxy* proxy)
10525 guint32 gchandle = 0;
10527 mono_cominterop_lock ();
10528 rcw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
10529 mono_cominterop_unlock ();
10532 gchandle = mono_gchandle_new_weakref ((MonoObject*)proxy, FALSE);
10534 mono_cominterop_lock ();
10535 g_hash_table_insert (rcw_hash, pUnk, GUINT_TO_POINTER (gchandle));
10536 mono_cominterop_unlock ();
10539 MonoComInteropProxy*
10540 ves_icall_Mono_Interop_ComInteropProxy_FindProxy (gpointer pUnk)
10542 MonoComInteropProxy* proxy = NULL;
10543 guint32 gchandle = 0;
10545 mono_cominterop_lock ();
10547 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, pUnk));
10548 mono_cominterop_unlock ();
10550 proxy = (MonoComInteropProxy*)mono_gchandle_get_target (gchandle);
10551 /* proxy is null means we need to free up old RCW */
10553 mono_gchandle_free (gchandle);
10554 g_hash_table_remove (rcw_hash, pUnk);
10561 * mono_marshal_is_loading_type_info:
10563 * Return whenever mono_marshal_load_type_info () is being executed for KLASS by this
10567 mono_marshal_is_loading_type_info (MonoClass *klass)
10569 GSList *loads_list = TlsGetValue (load_type_info_tls_id);
10571 return g_slist_find (loads_list, klass) != NULL;
10575 * mono_marshal_load_type_info:
10577 * Initialize klass->marshal_info using information from metadata. This function can
10578 * recursively call itself, and the caller is responsible to avoid that by calling
10579 * mono_marshal_is_loading_type_info () beforehand.
10581 * LOCKING: Acquires the loader lock.
10584 mono_marshal_load_type_info (MonoClass* klass)
10587 guint32 native_size = 0, min_align = 1;
10588 MonoMarshalType *info;
10589 MonoClassField* field;
10592 GSList *loads_list;
10594 g_assert (klass != NULL);
10596 if (klass->marshal_info)
10597 return klass->marshal_info;
10599 if (!klass->inited)
10600 mono_class_init (klass);
10602 mono_loader_lock ();
10604 if (klass->marshal_info) {
10605 mono_loader_unlock ();
10606 return klass->marshal_info;
10610 * This function can recursively call itself, so we keep the list of classes which are
10611 * under initialization in a TLS list.
10613 g_assert (!mono_marshal_is_loading_type_info (klass));
10614 loads_list = TlsGetValue (load_type_info_tls_id);
10615 loads_list = g_slist_prepend (loads_list, klass);
10616 TlsSetValue (load_type_info_tls_id, loads_list);
10619 while ((field = mono_class_get_fields (klass, &iter))) {
10620 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10622 if (mono_field_is_deleted (field))
10627 layout = klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
10629 /* The mempool is protected by the loader lock */
10630 info = mono_mempool_alloc0 (klass->image->mempool, sizeof (MonoMarshalType) + sizeof (MonoMarshalField) * count);
10631 info->num_fields = count;
10633 /* Try to find a size for this type in metadata */
10634 mono_metadata_packing_from_typedef (klass->image, klass->type_token, NULL, &native_size);
10636 if (klass->parent) {
10637 int parent_size = mono_class_native_size (klass->parent, NULL);
10639 /* Add parent size to real size */
10640 native_size += parent_size;
10641 info->native_size = parent_size;
10646 while ((field = mono_class_get_fields (klass, &iter))) {
10650 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
10653 if (mono_field_is_deleted (field))
10655 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_MARSHAL)
10656 mono_metadata_field_info (klass->image, mono_metadata_token_index (mono_class_get_field_token (field)) - 1,
10657 NULL, NULL, &info->fields [j].mspec);
10659 info->fields [j].field = field;
10661 if ((mono_class_num_fields (klass) == 1) && (klass->instance_size == sizeof (MonoObject)) &&
10662 (strcmp (field->name, "$PRIVATE$") == 0)) {
10663 /* This field is a hack inserted by MCS to empty structures */
10668 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
10669 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
10670 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10671 &align, TRUE, klass->unicode);
10672 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10673 min_align = MAX (align, min_align);
10674 info->fields [j].offset = info->native_size;
10675 info->fields [j].offset += align - 1;
10676 info->fields [j].offset &= ~(align - 1);
10677 info->native_size = info->fields [j].offset + size;
10679 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
10680 size = mono_marshal_type_size (field->type, info->fields [j].mspec,
10681 &align, TRUE, klass->unicode);
10682 align = klass->packing_size ? MIN (klass->packing_size, align): align;
10683 min_align = MAX (align, min_align);
10684 info->fields [j].offset = field->offset - sizeof (MonoObject);
10685 info->native_size = MAX (info->native_size, info->fields [j].offset + size);
10691 if(layout != TYPE_ATTRIBUTE_AUTO_LAYOUT) {
10692 info->native_size = MAX (native_size, info->native_size);
10695 if (info->native_size & (min_align - 1)) {
10696 info->native_size += min_align - 1;
10697 info->native_size &= ~(min_align - 1);
10700 /* Update the class's blittable info, if the layouts don't match */
10701 if (info->native_size != mono_class_value_size (klass, NULL))
10702 klass->blittable = FALSE;
10704 /* If this is an array type, ensure that we have element info */
10705 if (klass->element_class && !mono_marshal_is_loading_type_info (klass->element_class)) {
10706 mono_marshal_load_type_info (klass->element_class);
10709 loads_list = TlsGetValue (load_type_info_tls_id);
10710 loads_list = g_slist_remove (loads_list, klass);
10711 TlsSetValue (load_type_info_tls_id, loads_list);
10713 klass->marshal_info = info;
10715 mono_loader_unlock ();
10717 return klass->marshal_info;
10721 * mono_class_native_size:
10724 * Returns: the native size of an object instance (when marshaled
10725 * to unmanaged code)
10728 mono_class_native_size (MonoClass *klass, guint32 *align)
10730 if (!klass->marshal_info) {
10731 if (mono_marshal_is_loading_type_info (klass)) {
10736 mono_marshal_load_type_info (klass);
10741 *align = klass->min_align;
10743 return klass->marshal_info->native_size;
10747 * mono_type_native_stack_size:
10748 * @t: the type to return the size it uses on the stack
10750 * Returns: the number of bytes required to hold an instance of this
10751 * type on the native stack
10754 mono_type_native_stack_size (MonoType *t, guint32 *align)
10758 g_assert (t != NULL);
10769 case MONO_TYPE_BOOLEAN:
10770 case MONO_TYPE_CHAR:
10779 case MONO_TYPE_STRING:
10780 case MONO_TYPE_OBJECT:
10781 case MONO_TYPE_CLASS:
10782 case MONO_TYPE_SZARRAY:
10783 case MONO_TYPE_PTR:
10784 case MONO_TYPE_FNPTR:
10785 case MONO_TYPE_ARRAY:
10786 case MONO_TYPE_TYPEDBYREF:
10797 case MONO_TYPE_VALUETYPE: {
10800 if (t->data.klass->enumtype)
10801 return mono_type_native_stack_size (t->data.klass->enum_basetype, align);
10803 size = mono_class_native_size (t->data.klass, align);
10804 *align = *align + 3;
10814 g_error ("type 0x%02x unknown", t->type);
10819 /* __alignof__ returns the preferred alignment of values not the actual alignment used by
10820 the compiler so is wrong e.g. for Linux where doubles are aligned on a 4 byte boundary
10821 but __alignof__ returns 8 - using G_STRUCT_OFFSET works better */
10822 #define ALIGNMENT(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
10825 mono_marshal_type_size (MonoType *type, MonoMarshalSpec *mspec, guint32 *align,
10826 gboolean as_field, gboolean unicode)
10828 MonoMarshalNative native_type = mono_type_to_unmanaged (type, mspec, as_field, unicode, NULL);
10831 switch (native_type) {
10832 case MONO_NATIVE_BOOLEAN:
10835 case MONO_NATIVE_I1:
10836 case MONO_NATIVE_U1:
10839 case MONO_NATIVE_I2:
10840 case MONO_NATIVE_U2:
10841 case MONO_NATIVE_VARIANTBOOL:
10844 case MONO_NATIVE_I4:
10845 case MONO_NATIVE_U4:
10846 case MONO_NATIVE_ERROR:
10849 case MONO_NATIVE_I8:
10850 case MONO_NATIVE_U8:
10851 *align = ALIGNMENT(guint64);
10853 case MONO_NATIVE_R4:
10856 case MONO_NATIVE_R8:
10857 *align = ALIGNMENT(double);
10859 case MONO_NATIVE_INT:
10860 case MONO_NATIVE_UINT:
10861 case MONO_NATIVE_LPSTR:
10862 case MONO_NATIVE_LPWSTR:
10863 case MONO_NATIVE_LPTSTR:
10864 case MONO_NATIVE_BSTR:
10865 case MONO_NATIVE_ANSIBSTR:
10866 case MONO_NATIVE_TBSTR:
10867 case MONO_NATIVE_LPARRAY:
10868 case MONO_NATIVE_SAFEARRAY:
10869 case MONO_NATIVE_IUNKNOWN:
10870 case MONO_NATIVE_IDISPATCH:
10871 case MONO_NATIVE_INTERFACE:
10872 case MONO_NATIVE_ASANY:
10873 case MONO_NATIVE_FUNC:
10874 case MONO_NATIVE_LPSTRUCT:
10875 *align = ALIGNMENT(gpointer);
10876 return sizeof (gpointer);
10877 case MONO_NATIVE_STRUCT:
10878 klass = mono_class_from_mono_type (type);
10879 if (klass == mono_defaults.object_class &&
10880 (mspec && mspec->native == MONO_NATIVE_STRUCT)) {
10884 return mono_class_native_size (klass, align);
10885 case MONO_NATIVE_BYVALTSTR: {
10886 int esize = unicode ? 2: 1;
10889 return mspec->data.array_data.num_elem * esize;
10891 case MONO_NATIVE_BYVALARRAY: {
10892 // FIXME: Have to consider ArraySubType
10894 klass = mono_class_from_mono_type (type);
10895 if (klass->element_class == mono_defaults.char_class) {
10896 esize = unicode ? 2 : 1;
10899 esize = mono_class_native_size (klass->element_class, align);
10902 return mspec->data.array_data.num_elem * esize;
10904 case MONO_NATIVE_CUSTOM:
10905 *align = sizeof (gpointer);
10906 return sizeof (gpointer);
10908 case MONO_NATIVE_CURRENCY:
10909 case MONO_NATIVE_VBBYREFSTR:
10911 g_error ("native type %02x not implemented", native_type);
10914 g_assert_not_reached ();
10919 mono_marshal_asany (MonoObject *o, MonoMarshalNative string_encoding, int param_attrs)
10927 t = &o->vtable->klass->byval_arg;
10931 case MONO_TYPE_PTR:
10934 case MONO_TYPE_BOOLEAN:
10937 case MONO_TYPE_CHAR:
10942 return mono_object_unbox (o);
10944 case MONO_TYPE_STRING:
10945 switch (string_encoding) {
10946 case MONO_NATIVE_LPWSTR:
10947 return mono_string_to_utf16 ((MonoString*)o);
10949 case MONO_NATIVE_LPSTR:
10950 return mono_string_to_lpstr ((MonoString*)o);
10953 g_warning ("marshaling conversion %d not implemented", string_encoding);
10954 g_assert_not_reached ();
10957 case MONO_TYPE_CLASS:
10958 case MONO_TYPE_VALUETYPE: {
10959 MonoMethod *method;
10962 MonoBoolean delete_old = FALSE;
10964 klass = t->data.klass;
10966 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_AUTO_LAYOUT)
10969 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
10970 klass->blittable || klass->enumtype))
10971 return mono_object_unbox (o);
10973 res = mono_marshal_alloc (mono_class_native_size (klass, NULL));
10975 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
10976 method = mono_marshal_get_struct_to_ptr (o->vtable->klass);
10980 pa [2] = &delete_old;
10982 mono_runtime_invoke (method, NULL, pa, NULL);
10989 mono_raise_exception (mono_get_exception_argument ("", "No PInvoke conversion exists for value passed to Object-typed parameter."));
10995 mono_marshal_free_asany (MonoObject *o, gpointer ptr, MonoMarshalNative string_encoding, int param_attrs)
11003 t = &o->vtable->klass->byval_arg;
11005 case MONO_TYPE_STRING:
11006 switch (string_encoding) {
11007 case MONO_NATIVE_LPWSTR:
11008 case MONO_NATIVE_LPSTR:
11009 mono_marshal_free (ptr);
11012 g_warning ("marshaling conversion %d not implemented", string_encoding);
11013 g_assert_not_reached ();
11016 case MONO_TYPE_CLASS:
11017 case MONO_TYPE_VALUETYPE: {
11018 klass = t->data.klass;
11020 if (klass->valuetype && (((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) ||
11021 klass->blittable || klass->enumtype))
11024 if (param_attrs & PARAM_ATTRIBUTE_OUT) {
11025 MonoMethod *method = mono_marshal_get_ptr_to_struct (o->vtable->klass);
11031 mono_runtime_invoke (method, NULL, pa, NULL);
11034 if (!((param_attrs & PARAM_ATTRIBUTE_OUT) && !(param_attrs & PARAM_ATTRIBUTE_IN))) {
11035 mono_struct_delete_old (klass, ptr);
11038 mono_marshal_free (ptr);
11047 mono_marshal_get_generic_array_helper (MonoClass *class, MonoClass *iface, gchar *name, MonoMethod *method)
11049 MonoMethodSignature *sig, *csig;
11050 MonoMethodBuilder *mb;
11054 mb = mono_mb_new_no_dup_name (class, name, MONO_WRAPPER_MANAGED_TO_MANAGED);
11055 mb->method->slot = -1;
11057 mb->method->flags = METHOD_ATTRIBUTE_PRIVATE | METHOD_ATTRIBUTE_VIRTUAL |
11058 METHOD_ATTRIBUTE_NEW_SLOT | METHOD_ATTRIBUTE_HIDE_BY_SIG | METHOD_ATTRIBUTE_FINAL;
11060 sig = mono_method_signature (method);
11061 csig = signature_dup (method->klass->image, sig);
11062 csig->generic_param_count = 0;
11064 mono_mb_emit_ldarg (mb, 0);
11065 for (i = 0; i < csig->param_count; i++)
11066 mono_mb_emit_ldarg (mb, i + 1);
11067 mono_mb_emit_managed_call (mb, method, NULL);
11068 mono_mb_emit_byte (mb, CEE_RET);
11070 res = mono_mb_create_method (mb, csig, csig->param_count + 16);
11072 /* We can corlib internal methods */
11073 res->skip_visibility = TRUE;
11081 * The mono_win32_compat_* functions are implementations of inline
11082 * Windows kernel32 APIs, which are DllImport-able under MS.NET,
11083 * although not exported by kernel32.
11085 * We map the appropiate kernel32 entries to these functions using
11086 * dllmaps declared in the global etc/mono/config.
11090 mono_win32_compat_CopyMemory (gpointer dest, gconstpointer source, gsize length)
11092 if (!dest || !source)
11095 memcpy (dest, source, length);
11099 mono_win32_compat_FillMemory (gpointer dest, gsize length, guchar fill)
11101 memset (dest, fill, length);
11105 mono_win32_compat_MoveMemory (gpointer dest, gconstpointer source, gsize length)
11107 if (!dest || !source)
11110 memmove (dest, source, length);
11114 mono_win32_compat_ZeroMemory (gpointer dest, gsize length)
11116 memset (dest, 0, length);
11119 /* Put COM Interop related stuff here */
11122 * cominterop_get_ccw_object:
11123 * @ccw_entry: a pointer to the CCWEntry
11124 * @verify: verify ccw_entry is in fact a ccw
11126 * Returns: the corresponding object for the CCW
11129 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify)
11131 MonoCCW *ccw = NULL;
11133 /* no CCW's exist yet */
11134 if (!ccw_interface_hash)
11138 ccw = g_hash_table_lookup (ccw_interface_hash, ccw_entry);
11141 ccw = ccw_entry->ccw;
11145 return mono_gchandle_get_target (ccw->gc_handle);
11151 cominterop_setup_marshal_context (EmitMarshalContext *m, MonoMethod *method)
11153 MonoMethodSignature *sig, *csig;
11154 sig = mono_method_signature (method);
11155 /* we copy the signature, so that we can modify it */
11156 /* FIXME: which to use? */
11157 csig = signature_dup (method->klass->image, sig);
11158 /* csig = mono_metadata_signature_dup (sig); */
11160 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
11161 #ifdef PLATFORM_WIN32
11162 csig->call_convention = MONO_CALL_STDCALL;
11164 csig->call_convention = MONO_CALL_C;
11169 m->image = method->klass->image;
11177 * cominterop_get_ccw:
11178 * @object: a pointer to the object
11179 * @itf: interface type needed
11181 * Returns: a value indicating if the object is a
11182 * Runtime Callable Wrapper (RCW) for a COM object
11185 cominterop_get_ccw (MonoObject* object, MonoClass* itf)
11188 MonoCCW *ccw = NULL;
11189 MonoCCWInterface* ccw_entry = NULL;
11190 gpointer *vtable = NULL;
11191 static gpointer iunknown[3] = {NULL, NULL, NULL};
11192 static gpointer idispatch[4] = {NULL, NULL, NULL, NULL};
11193 MonoClass* iface = NULL;
11194 MonoClass* klass = NULL;
11195 EmitMarshalContext m;
11196 int start_slot = 3;
11197 int method_count = 0;
11198 GList *ccw_list, *ccw_list_item;
11199 MonoCustomAttrInfo *cinfo = NULL;
11204 klass = mono_object_get_class (object);
11207 ccw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11208 if (!ccw_interface_hash)
11209 ccw_interface_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11211 ccw_list = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
11213 ccw_list_item = ccw_list;
11214 while (ccw_list_item) {
11215 MonoCCW* ccw_iter = ccw_list_item->data;
11216 if (mono_gchandle_get_target (ccw_iter->gc_handle) == object) {
11220 ccw_list_item = g_list_next(ccw_list_item);
11223 if (!iunknown [0]) {
11224 iunknown [0] = cominterop_ccw_queryinterface;
11225 iunknown [1] = cominterop_ccw_addref;
11226 iunknown [2] = cominterop_ccw_release;
11229 if (!idispatch [0]) {
11230 idispatch [0] = cominterop_ccw_get_type_info_count;
11231 idispatch [1] = cominterop_ccw_get_type_info;
11232 idispatch [2] = cominterop_ccw_get_ids_of_names;
11233 idispatch [3] = cominterop_ccw_invoke;
11237 ccw = g_new0 (MonoCCW, 1);
11238 ccw->vtable_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
11239 ccw->ref_count = 0;
11240 /* just alloc a weak handle until we are addref'd*/
11241 ccw->gc_handle = mono_gchandle_new_weakref (object, FALSE);
11244 ccw_list = g_list_alloc ();
11245 ccw_list->data = ccw;
11248 ccw_list = g_list_append (ccw_list, ccw);
11249 g_hash_table_insert (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)), ccw_list);
11250 /* register for finalization to clean up ccw */
11251 mono_object_register_finalizer (object);
11254 cinfo = mono_custom_attrs_from_class (itf);
11256 static MonoClass* coclass_attribute = NULL;
11257 if (!coclass_attribute)
11258 coclass_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "CoClassAttribute");
11259 if (mono_custom_attrs_has_attr (cinfo, coclass_attribute)) {
11260 g_assert(itf->interface_count && itf->interfaces[0]);
11261 itf = itf->interfaces[0];
11263 if (!cinfo->cached)
11264 mono_custom_attrs_free (cinfo);
11268 if (iface == mono_defaults.iunknown_class) {
11271 else if (iface == mono_defaults.idispatch_class) {
11275 method_count += iface->method.count;
11276 start_slot = cominterop_get_com_slot_begin (iface);
11280 ccw_entry = g_hash_table_lookup (ccw->vtable_hash, itf);
11283 int vtable_index = method_count-1+start_slot;
11284 mono_loader_lock ();
11285 vtable = mono_mempool_alloc0 (klass->image->mempool, sizeof (gpointer)*(method_count+start_slot));
11286 mono_loader_unlock ();
11287 memcpy (vtable, iunknown, sizeof (iunknown));
11288 if (start_slot == 7)
11289 memcpy (vtable+3, idispatch, sizeof (idispatch));
11292 for (i = iface->method.count-1; i >= 0;i--) {
11293 int param_index = 0;
11294 MonoMethodBuilder *mb;
11295 MonoMarshalSpec ** mspecs;
11296 MonoMethod *wrapper_method, *adjust_method;
11297 MonoMethod *method = iface->methods [i];
11298 MonoMethodSignature* sig_adjusted;
11299 MonoMethodSignature* sig = mono_method_signature (method);
11300 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
11303 mb = mono_mb_new (iface, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
11304 adjust_method = cominterop_get_managed_wrapper_adjusted (method);
11305 sig_adjusted = mono_method_signature (adjust_method);
11307 mspecs = g_new (MonoMarshalSpec*, sig_adjusted->param_count + 1);
11308 mono_method_get_marshal_info (method, mspecs);
11311 /* move managed args up one */
11312 for (param_index = sig->param_count; param_index >= 1; param_index--)
11313 mspecs [param_index+1] = mspecs [param_index];
11315 /* first arg is IntPtr for interface */
11318 /* move return spec to last param */
11319 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret)) {
11320 mspecs [sig_adjusted->param_count] = mspecs [0];
11324 cominterop_setup_marshal_context (&m, adjust_method);
11326 mono_marshal_emit_managed_wrapper (mb, sig_adjusted, mspecs, &m, adjust_method, NULL);
11327 mono_loader_lock ();
11328 mono_marshal_lock ();
11329 wrapper_method = mono_mb_create_method (mb, sig_adjusted, sig_adjusted->param_count + 16);
11330 mono_marshal_unlock ();
11331 mono_loader_unlock ();
11333 /* skip visiblity since we call internal methods */
11334 wrapper_method->skip_visibility = TRUE;
11336 vtable [vtable_index--] = mono_compile_method (wrapper_method);
11339 for (param_index = sig_adjusted->param_count; param_index >= 0; param_index--)
11340 if (mspecs [param_index])
11341 mono_metadata_free_marshal_spec (mspecs [param_index]);
11345 ccw_entry = g_new0 (MonoCCWInterface, 1);
11346 ccw_entry->ccw = ccw;
11347 ccw_entry->vtable = vtable;
11348 g_hash_table_insert (ccw->vtable_hash, itf, ccw_entry);
11349 g_hash_table_insert (ccw_interface_hash, ccw_entry, ccw);
11356 mono_marshal_free_ccw_entry (gpointer key, gpointer value, gpointer user_data)
11364 * mono_marshal_free_ccw:
11365 * @object: the mono object
11367 * Returns: whether the object had a CCW
11370 mono_marshal_free_ccw (MonoObject* object)
11372 GList *ccw_list, *ccw_list_orig, *ccw_list_item;
11373 /* no ccw's were created */
11374 if (!ccw_hash || g_hash_table_size (ccw_hash) == 0)
11377 /* need to cache orig list address to remove from hash_table if empty */
11378 mono_cominterop_lock ();
11379 ccw_list = ccw_list_orig = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
11380 mono_cominterop_unlock ();
11385 ccw_list_item = ccw_list;
11386 while (ccw_list_item) {
11387 MonoCCW* ccw_iter = ccw_list_item->data;
11388 MonoObject* handle_target = mono_gchandle_get_target (ccw_iter->gc_handle);
11390 /* Looks like the GC NULLs the weakref handle target before running the
11391 * finalizer. So if we get a NULL target, destroy the CCW as well. */
11392 if (!handle_target || handle_target == object) {
11393 /* remove all interfaces */
11394 g_hash_table_foreach_remove (ccw_iter->vtable_hash, mono_marshal_free_ccw_entry, NULL);
11395 g_hash_table_destroy (ccw_iter->vtable_hash);
11397 /* get next before we delete */
11398 ccw_list_item = g_list_next(ccw_list_item);
11400 /* remove ccw from list */
11401 ccw_list = g_list_remove (ccw_list, ccw_iter);
11405 ccw_list_item = g_list_next(ccw_list_item);
11408 /* if list is empty remove original address from hash */
11409 if (g_list_length (ccw_list) == 0)
11410 g_hash_table_remove (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
11417 * cominterop_get_native_wrapper_adjusted:
11418 * @method: managed COM Interop method
11420 * Returns: the generated method to call with signature matching
11421 * the unmanaged COM Method signature
11423 static MonoMethod *
11424 cominterop_get_managed_wrapper_adjusted (MonoMethod *method)
11426 static MonoMethod *get_hr_for_exception = NULL;
11427 MonoMethod *res = NULL;
11428 MonoMethodBuilder *mb;
11429 MonoMarshalSpec **mspecs;
11430 MonoMethodSignature *sig, *sig_native;
11431 MonoExceptionClause *main_clause = NULL;
11432 MonoMethodHeader *header;
11436 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
11438 if (!get_hr_for_exception)
11439 get_hr_for_exception = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetHRForException", -1);
11441 sig = mono_method_signature (method);
11443 /* create unmanaged wrapper */
11444 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
11446 sig_native = cominterop_method_signature (method);
11448 mspecs = g_new0 (MonoMarshalSpec*, sig_native->param_count+1);
11450 mono_method_get_marshal_info (method, mspecs);
11452 /* move managed args up one */
11453 for (i = sig->param_count; i >= 1; i--)
11454 mspecs [i+1] = mspecs [i];
11456 /* first arg is IntPtr for interface */
11459 /* move return spec to last param */
11460 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
11461 mspecs [sig_native->param_count] = mspecs [0];
11465 if (!preserve_sig) {
11466 hr = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
11469 main_clause = g_new0 (MonoExceptionClause, 1);
11470 main_clause->try_offset = mono_mb_get_label (mb);
11473 /* load last param to store result if not preserve_sig and not void */
11474 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
11475 mono_mb_emit_ldarg (mb, sig_native->param_count-1);
11477 /* the CCW -> object conversion */
11478 mono_mb_emit_ldarg (mb, 0);
11479 mono_mb_emit_icon (mb, FALSE);
11480 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
11482 for (i = 0; i < sig->param_count; i++)
11483 mono_mb_emit_ldarg (mb, i+1);
11485 mono_mb_emit_managed_call (mb, method, NULL);
11487 if (!preserve_sig) {
11488 /* store result if not preserve_sig and we have one */
11489 if (!MONO_TYPE_IS_VOID (sig->ret))
11490 mono_mb_emit_byte (mb, mono_type_to_stind (sig->ret));
11492 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
11494 /* Main exception catch */
11495 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
11496 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
11497 main_clause->data.catch_class = mono_defaults.object_class;
11500 main_clause->handler_offset = mono_mb_get_label (mb);
11501 mono_mb_emit_managed_call (mb, get_hr_for_exception, NULL);
11502 mono_mb_emit_stloc (mb, hr);
11503 mono_mb_emit_branch (mb, CEE_LEAVE);
11504 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
11507 mono_mb_patch_branch (mb, pos_leave);
11509 mono_mb_emit_ldloc (mb, hr);
11512 mono_mb_emit_byte (mb, CEE_RET);
11514 mono_loader_lock ();
11515 mono_marshal_lock ();
11516 res = mono_mb_create_method (mb, sig_native, sig_native->param_count + 16);
11517 mono_marshal_unlock ();
11518 mono_loader_unlock ();
11522 for (i = sig_native->param_count; i >= 0; i--)
11524 mono_metadata_free_marshal_spec (mspecs [i]);
11527 if (!preserve_sig) {
11528 header = ((MonoMethodNormal *)res)->header;
11529 header->num_clauses = 1;
11530 header->clauses = main_clause;
11537 * cominterop_mono_string_to_guid:
11539 * Converts the standard string representation of a GUID
11540 * to a 16 byte Microsoft GUID.
11543 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid) {
11544 gunichar2 * chars = mono_string_chars (string);
11546 static guint8 indexes[16] = {7, 5, 3, 1, 12, 10, 17, 15, 20, 22, 25, 27, 29, 31, 33, 35};
11548 for (i = 0; i < sizeof(indexes); i++)
11549 guid [i] = g_unichar_xdigit_value (chars [indexes [i]]) + (g_unichar_xdigit_value (chars [indexes [i] - 1]) << 4);
11553 cominterop_class_guid_equal (guint8* guid, MonoClass* klass)
11555 guint8 klass_guid [16];
11556 if (cominterop_class_guid (klass, klass_guid))
11557 return !memcmp (guid, klass_guid, sizeof (klass_guid));
11562 cominterop_ccw_addref (MonoCCWInterface* ccwe)
11564 gint32 ref_count = 0;
11565 MonoCCW* ccw = ccwe->ccw;
11567 g_assert (ccw->gc_handle);
11568 g_assert (ccw->ref_count >= 0);
11569 ref_count = InterlockedIncrement ((gint32*)&ccw->ref_count);
11570 if (ref_count == 1) {
11571 guint32 oldhandle = ccw->gc_handle;
11572 g_assert (oldhandle);
11573 /* since we now have a ref count, alloc a strong handle*/
11574 ccw->gc_handle = mono_gchandle_new (mono_gchandle_get_target (oldhandle), FALSE);
11575 mono_gchandle_free (oldhandle);
11581 cominterop_ccw_release (MonoCCWInterface* ccwe)
11583 gint32 ref_count = 0;
11584 MonoCCW* ccw = ccwe->ccw;
11586 g_assert (ccw->ref_count > 0);
11587 ref_count = InterlockedDecrement ((gint32*)&ccw->ref_count);
11588 if (ref_count == 0) {
11589 /* allow gc of object */
11590 guint32 oldhandle = ccw->gc_handle;
11591 g_assert (oldhandle);
11592 ccw->gc_handle = mono_gchandle_new_weakref (mono_gchandle_get_target (oldhandle), FALSE);
11593 mono_gchandle_free (oldhandle);
11598 #define MONO_S_OK 0x00000000L
11599 #define MONO_E_NOINTERFACE 0x80004002L
11600 #define MONO_E_NOTIMPL 0x80004001L
11603 cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv)
11606 MonoClass *itf = NULL;
11608 MonoCCW* ccw = ccwe->ccw;
11609 MonoClass* klass = NULL;
11610 MonoObject* object = mono_gchandle_get_target (ccw->gc_handle);
11613 klass = mono_object_class (object);
11618 /* handle IUnknown special */
11619 if (cominterop_class_guid_equal (riid, mono_defaults.iunknown_class)) {
11620 *ppv = cominterop_get_ccw (object, mono_defaults.iunknown_class);
11621 /* remember to addref on QI */
11622 cominterop_ccw_addref (*ppv);
11626 /* handle IDispatch special */
11627 if (cominterop_class_guid_equal (riid, mono_defaults.idispatch_class)) {
11628 *ppv = cominterop_get_ccw (object, mono_defaults.idispatch_class);
11629 /* remember to addref on QI */
11630 cominterop_ccw_addref (*ppv);
11634 ifaces = mono_class_get_implemented_interfaces (klass);
11636 for (i = 0; i < ifaces->len; ++i) {
11637 MonoClass *ic = NULL;
11638 ic = g_ptr_array_index (ifaces, i);
11639 if (cominterop_class_guid_equal (riid, ic)) {
11644 g_ptr_array_free (ifaces, TRUE);
11647 *ppv = cominterop_get_ccw (object, itf);
11648 /* remember to addref on QI */
11649 cominterop_ccw_addref (*ppv);
11653 return MONO_E_NOINTERFACE;
11657 cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo)
11659 return MONO_E_NOTIMPL;
11663 cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo)
11665 return MONO_E_NOTIMPL;
11669 cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
11670 gunichar2** rgszNames, guint32 cNames,
11671 guint32 lcid, gint32 *rgDispId)
11673 return MONO_E_NOTIMPL;
11677 cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
11678 gpointer riid, guint32 lcid,
11679 guint16 wFlags, gpointer pDispParams,
11680 gpointer pVarResult, gpointer pExcepInfo,
11683 return MONO_E_NOTIMPL;