2 * cominterop.c: COM Interop Support
5 * (C) 2002 Ximian, Inc. http://www.ximian.com
17 #include "metadata/cominterop.h"
18 #include "metadata/marshal.h"
19 #include "metadata/method-builder.h"
20 #include "metadata/tabledefs.h"
21 #include "metadata/exception.h"
22 #include "metadata/appdomain.h"
23 #include "mono/metadata/debug-helpers.h"
24 #include "mono/metadata/threadpool.h"
25 #include "mono/metadata/threads.h"
26 #include "mono/metadata/monitor.h"
27 #include "mono/metadata/metadata-internals.h"
28 #include "mono/metadata/domain-internals.h"
29 #include "mono/metadata/gc-internal.h"
30 #include "mono/metadata/threads-types.h"
31 #include "mono/metadata/string-icalls.h"
32 #include "mono/metadata/attrdefs.h"
33 #include "mono/metadata/gc-internal.h"
34 #include "mono/utils/mono-counters.h"
40 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
44 MONO_MARSHAL_NONE, /* No marshalling needed */
45 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
46 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
47 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
48 } MonoXDomainMarshalType;
55 static MonoCOMProvider com_provider = MONO_COM_DEFAULT;
58 #include "mono/cil/opcode.def"
63 /* This mutex protects the various cominterop related caches in MonoImage */
64 #define mono_cominterop_lock() EnterCriticalSection (&cominterop_mutex)
65 #define mono_cominterop_unlock() LeaveCriticalSection (&cominterop_mutex)
66 static CRITICAL_SECTION cominterop_mutex;
68 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
70 #define STDCALL __stdcall
75 /* Upon creation of a CCW, only allocate a weak handle and set the
76 * reference count to 0. If the unmanaged client code decides to addref and
77 * hold onto the CCW, I then allocate a strong handle. Once the reference count
78 * goes back to 0, convert back to a weak handle.
83 GHashTable* vtable_hash;
85 gpointer free_marshaler;
89 /* This type is the actual pointer passed to unmanaged code
90 * to represent a COM interface.
98 static int STDCALL cominterop_ccw_addref (MonoCCWInterface* ccwe);
100 static int STDCALL cominterop_ccw_release (MonoCCWInterface* ccwe);
102 static int STDCALL cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv);
105 static int STDCALL cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo);
107 static int STDCALL cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo);
109 static int STDCALL cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
110 gunichar2** rgszNames, guint32 cNames,
111 guint32 lcid, gint32 *rgDispId);
113 static int STDCALL cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
114 gpointer riid, guint32 lcid,
115 guint16 wFlags, gpointer pDispParams,
116 gpointer pVarResult, gpointer pExcepInfo,
120 cominterop_get_managed_wrapper_adjusted (MonoMethod *method);
123 cominterop_get_ccw (MonoObject* object, MonoClass* itf);
126 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify);
128 /* SAFEARRAY marshalling */
130 mono_marshal_safearray_begin (gpointer safearray, MonoArray **result, gpointer *indices, gpointer empty);
133 mono_marshal_safearray_get_value (gpointer safearray, gpointer indices);
136 mono_marshal_safearray_next (gpointer safearray, gpointer indices);
139 mono_marshal_safearray_end (gpointer safearray, gpointer indices);
142 * cominterop_method_signature:
145 * Returns: the corresponding unmanaged method signature for a managed COM
148 static MonoMethodSignature*
149 cominterop_method_signature (MonoMethod* method)
151 MonoMethodSignature *res;
152 MonoImage *image = method->klass->image;
153 MonoMethodSignature *sig = mono_method_signature (method);
154 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
157 int param_count = sig->param_count + 1; // convert this arg into IntPtr arg
159 if (!preserve_sig &&!MONO_TYPE_IS_VOID (sig->ret))
162 res = mono_metadata_signature_alloc (image, param_count);
163 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
164 memcpy (res, sig, sigsize);
166 // now move args forward one
167 for (i = sig->param_count-1; i >= 0; i--)
168 res->params[i+1] = sig->params[i];
170 // first arg is interface pointer
171 res->params[0] = &mono_defaults.int_class->byval_arg;
177 // last arg is return type
178 if (!MONO_TYPE_IS_VOID (sig->ret)) {
179 res->params[param_count-1] = mono_metadata_type_dup (image, sig->ret);
180 res->params[param_count-1]->byref = 1;
181 res->params[param_count-1]->attrs = PARAM_ATTRIBUTE_OUT;
184 // return type is always int32 (HRESULT)
185 res->ret = &mono_defaults.int32_class->byval_arg;
189 res->pinvoke = FALSE;
195 res->param_count = param_count;
197 // STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM
199 res->call_convention = MONO_CALL_STDCALL;
201 res->call_convention = MONO_CALL_C;
208 * cominterop_get_function_pointer:
209 * @itf: a pointer to the COM interface
210 * @slot: the vtable slot of the method pointer to return
212 * Returns: the unmanaged vtable function pointer from the interface
215 cominterop_get_function_pointer (gpointer itf, int slot)
218 func = *((*(gpointer**)itf)+slot);
223 * cominterop_object_is_com_object:
224 * @obj: a pointer to the object
226 * Returns: a value indicating if the object is a
227 * Runtime Callable Wrapper (RCW) for a COM object
230 cominterop_object_is_rcw (MonoObject *obj)
232 MonoClass *klass = NULL;
233 MonoRealProxy* real_proxy = NULL;
236 klass = mono_object_class (obj);
237 if (klass != mono_defaults.transparent_proxy_class)
240 real_proxy = ((MonoTransparentProxy*)obj)->rp;
244 klass = mono_object_class (real_proxy);
245 return (klass && klass == mono_defaults.com_interop_proxy_class);
249 cominterop_get_com_slot_begin (MonoClass* klass)
251 static MonoClass *interface_type_attribute = NULL;
252 MonoCustomAttrInfo *cinfo = NULL;
253 MonoInterfaceTypeAttribute* itf_attr = NULL;
255 if (!interface_type_attribute)
256 interface_type_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "InterfaceTypeAttribute");
257 cinfo = mono_custom_attrs_from_class (klass);
259 itf_attr = (MonoInterfaceTypeAttribute*)mono_custom_attrs_get_attr (cinfo, interface_type_attribute);
261 mono_custom_attrs_free (cinfo);
264 if (itf_attr && itf_attr->intType == 1)
265 return 3; /* 3 methods in IUnknown*/
267 return 7; /* 7 methods in IDispatch*/
271 * cominterop_get_method_interface:
272 * @method: method being called
274 * Returns: the MonoClass* representing the interface on which
275 * the method is defined.
278 cominterop_get_method_interface (MonoMethod* method)
280 MonoClass *ic = method->klass;
282 /* if method is on a class, we need to look up interface method exists on */
283 if (!MONO_CLASS_IS_INTERFACE(method->klass)) {
284 GPtrArray *ifaces = mono_class_get_implemented_interfaces (method->klass);
287 mono_class_setup_vtable (method->klass);
288 for (i = 0; i < ifaces->len; ++i) {
290 gboolean found = FALSE;
291 ic = g_ptr_array_index (ifaces, i);
292 offset = mono_class_interface_offset (method->klass, ic);
293 for (j = 0; j < ic->method.count; ++j) {
294 if (method->klass->vtable [j + offset] == method) {
303 g_ptr_array_free (ifaces, TRUE);
309 g_assert (MONO_CLASS_IS_INTERFACE (ic));
315 * cominterop_get_com_slot_for_method:
318 * Returns: the method's slot in the COM interface vtable
321 cominterop_get_com_slot_for_method (MonoMethod* method)
323 guint32 slot = method->slot;
324 MonoClass *ic = method->klass;
326 /* if method is on a class, we need to look up interface method exists on */
327 if (!MONO_CLASS_IS_INTERFACE(ic)) {
330 ic = cominterop_get_method_interface (method);
331 offset = mono_class_interface_offset (method->klass, ic);
332 g_assert(offset >= 0);
333 for(i = 0; i < ic->method.count; ++i) {
334 if (method->klass->vtable [i + offset] == method)
336 slot = ic->methods[i]->slot;
343 g_assert (MONO_CLASS_IS_INTERFACE (ic));
345 return slot + cominterop_get_com_slot_begin (ic);
350 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid);
353 cominterop_class_guid (MonoClass* klass, guint8* guid)
355 static MonoClass *GuidAttribute = NULL;
356 MonoCustomAttrInfo *cinfo;
358 /* Handle the GuidAttribute */
360 GuidAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "GuidAttribute");
362 cinfo = mono_custom_attrs_from_class (klass);
364 MonoReflectionGuidAttribute *attr = (MonoReflectionGuidAttribute*)mono_custom_attrs_get_attr (cinfo, GuidAttribute);
369 mono_custom_attrs_free (cinfo);
371 cominterop_mono_string_to_guid (attr->guid, guid);
378 cominterop_com_visible (MonoClass* klass)
380 static MonoClass *ComVisibleAttribute = NULL;
381 MonoCustomAttrInfo *cinfo;
383 MonoBoolean visible = 0;
385 /* Handle the ComVisibleAttribute */
386 if (!ComVisibleAttribute)
387 ComVisibleAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ComVisibleAttribute");
389 cinfo = mono_custom_attrs_from_class (klass);
391 MonoReflectionComVisibleAttribute *attr = (MonoReflectionComVisibleAttribute*)mono_custom_attrs_get_attr (cinfo, ComVisibleAttribute);
394 visible = attr->visible;
396 mono_custom_attrs_free (cinfo);
401 ifaces = mono_class_get_implemented_interfaces (klass);
404 for (i = 0; i < ifaces->len; ++i) {
405 MonoClass *ic = NULL;
406 ic = g_ptr_array_index (ifaces, i);
407 if (MONO_CLASS_IS_IMPORT (ic))
411 g_ptr_array_free (ifaces, TRUE);
417 static void cominterop_raise_hr_exception (int hr)
419 static MonoMethod* throw_exception_for_hr = NULL;
421 void* params[1] = {&hr};
422 if (!throw_exception_for_hr)
423 throw_exception_for_hr = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetExceptionForHR", 1);
424 ex = (MonoException*)mono_runtime_invoke (throw_exception_for_hr, NULL, params, NULL);
425 mono_raise_exception (ex);
429 * cominterop_get_interface:
430 * @obj: managed wrapper object containing COM object
431 * @ic: interface type to retrieve for COM object
433 * Returns: the COM interface requested
436 cominterop_get_interface (MonoComObject* obj, MonoClass* ic, gboolean throw_exception)
441 g_assert (MONO_CLASS_IS_INTERFACE (ic));
443 mono_cominterop_lock ();
445 itf = g_hash_table_lookup (obj->itf_hash, GUINT_TO_POINTER ((guint)ic->interface_id));
446 mono_cominterop_unlock ();
450 int found = cominterop_class_guid (ic, iid);
453 hr = ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (obj->iunknown, iid, &itf);
454 if (hr < 0 && throw_exception) {
455 cominterop_raise_hr_exception (hr);
458 if (hr >= 0 && itf) {
459 mono_cominterop_lock ();
461 obj->itf_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
462 g_hash_table_insert (obj->itf_hash, GUINT_TO_POINTER ((guint)ic->interface_id), itf);
463 mono_cominterop_unlock ();
474 cominterop_get_hresult_for_exception (MonoException* exc)
480 static MonoReflectionType *
481 cominterop_type_from_handle (MonoType *handle)
483 MonoDomain *domain = mono_domain_get ();
484 MonoClass *klass = mono_class_from_mono_type (handle);
488 mono_class_init (klass);
489 return mono_type_get_object (domain, handle);
493 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
495 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
497 mono_register_jit_icall (func, name, sig, save);
501 mono_cominterop_init (void)
503 char* com_provider_env = NULL;
505 InitializeCriticalSection (&cominterop_mutex);
507 com_provider_env = getenv ("MONO_COM");
508 if (com_provider_env && !strcmp(com_provider_env, "MS"))
509 com_provider = MONO_COM_MS;
511 register_icall (cominterop_get_method_interface, "cominterop_get_method_interface", "ptr ptr", FALSE);
512 register_icall (cominterop_get_function_pointer, "cominterop_get_function_pointer", "ptr ptr int32", FALSE);
513 register_icall (cominterop_object_is_rcw, "cominterop_object_is_rcw", "int32 object", FALSE);
514 register_icall (cominterop_get_ccw, "cominterop_get_ccw", "ptr object ptr", FALSE);
515 register_icall (cominterop_get_ccw_object, "cominterop_get_ccw_object", "object ptr int32", FALSE);
516 register_icall (cominterop_get_hresult_for_exception, "cominterop_get_hresult_for_exception", "int32 object", FALSE);
517 register_icall (cominterop_get_interface, "cominterop_get_interface", "ptr object ptr int32", FALSE);
519 register_icall (mono_string_to_bstr, "mono_string_to_bstr", "ptr obj", FALSE);
520 register_icall (mono_string_from_bstr, "mono_string_from_bstr", "obj ptr", FALSE);
521 register_icall (mono_free_bstr, "mono_free_bstr", "void ptr", FALSE);
522 register_icall (cominterop_type_from_handle, "cominterop_type_from_handle", "object ptr", FALSE);
524 /* SAFEARRAY marshalling */
525 register_icall (mono_marshal_safearray_begin, "mono_marshal_safearray_begin", "int32 ptr ptr ptr ptr", FALSE);
526 register_icall (mono_marshal_safearray_get_value, "mono_marshal_safearray_get_value", "ptr ptr ptr", FALSE);
527 register_icall (mono_marshal_safearray_next, "mono_marshal_safearray_next", "int32 ptr ptr", FALSE);
528 register_icall (mono_marshal_safearray_end, "mono_marshal_safearray_end", "void ptr ptr", FALSE);
532 mono_cominterop_cleanup (void)
534 DeleteCriticalSection (&cominterop_mutex);
538 mono_mb_emit_cominterop_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethod* method)
540 // get function pointer from 1st arg, the COM interface pointer
541 mono_mb_emit_ldarg (mb, 0);
542 mono_mb_emit_icon (mb, cominterop_get_com_slot_for_method (method));
543 mono_mb_emit_icall (mb, cominterop_get_function_pointer);
545 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
546 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
547 mono_mb_emit_calli (mb, sig);
548 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
549 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
553 mono_cominterop_emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
556 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
557 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
558 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH: {
559 static MonoClass* com_interop_proxy_class = NULL;
560 static MonoMethod* com_interop_proxy_get_proxy = NULL;
561 static MonoMethod* get_transparent_proxy = NULL;
563 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
564 MonoClass *klass = NULL;
566 /* COM types are initialized lazily */
567 mono_init_com_types ();
569 klass = mono_class_from_mono_type (type);
571 mono_mb_emit_ldloc (mb, 1);
572 mono_mb_emit_byte (mb, CEE_LDNULL);
573 mono_mb_emit_byte (mb, CEE_STIND_REF);
575 mono_mb_emit_ldloc (mb, 0);
576 mono_mb_emit_byte (mb, CEE_LDIND_I);
577 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
579 /* load dst to store later */
580 mono_mb_emit_ldloc (mb, 1);
582 mono_mb_emit_ldloc (mb, 0);
583 mono_mb_emit_byte (mb, CEE_LDIND_I);
584 mono_mb_emit_icon (mb, TRUE);
585 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
586 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
588 if (!com_interop_proxy_class)
589 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
590 if (!com_interop_proxy_get_proxy)
591 com_interop_proxy_get_proxy = mono_class_get_method_from_name_flags (com_interop_proxy_class, "GetProxy", 2, METHOD_ATTRIBUTE_PRIVATE);
592 if (!get_transparent_proxy)
593 get_transparent_proxy = mono_class_get_method_from_name (mono_defaults.real_proxy_class, "GetTransparentProxy", 0);
595 real_proxy = mono_mb_add_local (mb, &com_interop_proxy_class->byval_arg);
597 mono_mb_emit_ldloc (mb, 0);
598 mono_mb_emit_byte (mb, CEE_LDIND_I);
599 mono_mb_emit_ptr (mb, &mono_defaults.com_object_class->byval_arg);
600 mono_mb_emit_icall (mb, cominterop_type_from_handle);
601 mono_mb_emit_managed_call (mb, com_interop_proxy_get_proxy, NULL);
602 mono_mb_emit_managed_call (mb, get_transparent_proxy, NULL);
603 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
605 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
607 mono_mb_emit_byte (mb, CEE_STIND_REF);
608 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
610 /* is already managed object */
611 mono_mb_patch_short_branch (mb, pos_ccw);
612 mono_mb_emit_ldloc (mb, 0);
613 mono_mb_emit_byte (mb, CEE_LDIND_I);
614 mono_mb_emit_icon (mb, TRUE);
615 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
617 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
619 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
621 mono_mb_emit_byte (mb, CEE_STIND_REF);
623 mono_mb_patch_short_branch (mb, pos_end);
625 mono_mb_patch_short_branch (mb, pos_null);
629 g_assert_not_reached ();
634 mono_cominterop_emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
637 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
638 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
639 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN: {
640 guint32 pos_null = 0, pos_rcw = 0, pos_end = 0;
642 /* COM types are initialized lazily */
643 mono_init_com_types ();
646 mono_mb_emit_ldloc (mb, 1);
647 mono_mb_emit_icon (mb, 0);
648 mono_mb_emit_byte (mb, CEE_CONV_U);
649 mono_mb_emit_byte (mb, CEE_STIND_I);
651 mono_mb_emit_ldloc (mb, 0);
652 mono_mb_emit_byte (mb, CEE_LDIND_REF);
654 // if null just break, dst was already inited to 0
655 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
657 mono_mb_emit_ldloc (mb, 0);
658 mono_mb_emit_byte (mb, CEE_LDIND_REF);
659 mono_mb_emit_icall (mb, cominterop_object_is_rcw);
660 pos_rcw = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
662 // load dst to store later
663 mono_mb_emit_ldloc (mb, 1);
666 mono_mb_emit_ldloc (mb, 0);
667 mono_mb_emit_byte (mb, CEE_LDIND_REF);
668 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
669 mono_mb_emit_byte (mb, CEE_LDIND_REF);
671 /* load the RCW from the ComInteropProxy*/
672 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
673 mono_mb_emit_byte (mb, CEE_LDIND_REF);
675 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
676 mono_mb_emit_ptr (mb, mono_type_get_class (type));
677 mono_mb_emit_icon (mb, TRUE);
678 mono_mb_emit_icall (mb, cominterop_get_interface);
681 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN) {
682 static MonoProperty* iunknown = NULL;
685 iunknown = mono_class_get_property_from_name (mono_defaults.com_object_class, "IUnknown");
686 mono_mb_emit_managed_call (mb, iunknown->get, NULL);
688 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH) {
689 static MonoProperty* idispatch = NULL;
692 idispatch = mono_class_get_property_from_name (mono_defaults.com_object_class, "IDispatch");
693 mono_mb_emit_managed_call (mb, idispatch->get, NULL);
696 g_assert_not_reached ();
698 mono_mb_emit_byte (mb, CEE_STIND_I);
699 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
702 mono_mb_patch_short_branch (mb, pos_rcw);
703 /* load dst to store later */
704 mono_mb_emit_ldloc (mb, 1);
706 mono_mb_emit_ldloc (mb, 0);
707 mono_mb_emit_byte (mb, CEE_LDIND_REF);
709 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE)
710 mono_mb_emit_ptr (mb, mono_type_get_class (type));
711 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN)
712 mono_mb_emit_ptr (mb, mono_defaults.iunknown_class);
713 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH)
714 mono_mb_emit_ptr (mb, mono_defaults.idispatch_class);
716 g_assert_not_reached ();
717 mono_mb_emit_icall (mb, cominterop_get_ccw);
718 mono_mb_emit_byte (mb, CEE_STIND_I);
720 mono_mb_patch_short_branch (mb, pos_end);
721 mono_mb_patch_short_branch (mb, pos_null);
725 g_assert_not_reached ();
730 * cominterop_get_native_wrapper_adjusted:
731 * @method: managed COM Interop method
733 * Returns: the generated method to call with signature matching
734 * the unmanaged COM Method signature
737 cominterop_get_native_wrapper_adjusted (MonoMethod *method)
740 MonoMethodBuilder *mb_native;
741 MonoMarshalSpec **mspecs;
742 MonoMethodSignature *sig, *sig_native;
743 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
746 sig = mono_method_signature (method);
748 // create unmanaged wrapper
749 mb_native = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
750 sig_native = cominterop_method_signature (method);
752 mspecs = g_new (MonoMarshalSpec*, sig_native->param_count+1);
753 memset (mspecs, 0, sizeof(MonoMarshalSpec*)*(sig_native->param_count+1));
755 mono_method_get_marshal_info (method, mspecs);
757 // move managed args up one
758 for (i = sig->param_count; i >= 1; i--)
759 mspecs[i+1] = mspecs[i];
761 // first arg is IntPtr for interface
764 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG)) {
765 // move return spec to last param
766 if (!MONO_TYPE_IS_VOID (sig->ret))
767 mspecs[sig_native->param_count] = mspecs[0];
772 for (i = 1; i < sig_native->param_count; i++) {
773 int mspec_index = i + 1;
774 if (mspecs[mspec_index] == NULL) {
775 // default object to VARIANT
776 if (sig_native->params[i]->type == MONO_TYPE_OBJECT) {
777 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
778 mspecs[mspec_index]->native = MONO_NATIVE_STRUCT;
780 else if (sig_native->params[i]->type == MONO_TYPE_STRING) {
781 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
782 mspecs[mspec_index]->native = MONO_NATIVE_BSTR;
784 else if (sig_native->params[i]->type == MONO_TYPE_CLASS) {
785 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
786 mspecs[mspec_index]->native = MONO_NATIVE_INTERFACE;
788 else if (sig_native->params[i]->type == MONO_NATIVE_BOOLEAN) {
789 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
790 mspecs[mspec_index]->native = MONO_NATIVE_VARIANTBOOL;
795 if (method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG) {
796 // move return spec to last param
797 if (!MONO_TYPE_IS_VOID (sig->ret) && mspecs[0] == NULL) {
798 // default object to VARIANT
799 if (sig->ret->type == MONO_TYPE_OBJECT) {
800 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
801 mspecs[0]->native = MONO_NATIVE_STRUCT;
803 else if (sig->ret->type == MONO_TYPE_STRING) {
804 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
805 mspecs[0]->native = MONO_NATIVE_BSTR;
807 else if (sig->ret->type == MONO_TYPE_CLASS) {
808 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
809 mspecs[0]->native = MONO_NATIVE_INTERFACE;
811 else if (sig->ret->type == MONO_NATIVE_BOOLEAN) {
812 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
813 mspecs[0]->native = MONO_NATIVE_VARIANTBOOL;
818 mono_marshal_emit_native_wrapper (method->klass->image, mb_native, sig_native, piinfo, mspecs, piinfo->addr, FALSE, TRUE);
820 res = mono_mb_create_method (mb_native, sig_native, sig_native->param_count + 16);
822 mono_mb_free (mb_native);
824 for (i = sig_native->param_count; i >= 0; i--)
826 mono_metadata_free_marshal_spec (mspecs [i]);
833 * mono_cominterop_get_native_wrapper:
834 * @method: managed method
836 * Returns: the generated method to call
839 mono_cominterop_get_native_wrapper (MonoMethod *method)
843 MonoMethodBuilder *mb;
844 MonoMethodSignature *sig, *csig;
848 cache = mono_marshal_get_cache (&method->klass->image->cominterop_wrapper_cache, mono_aligned_addr_hash, NULL);
849 if ((res = mono_marshal_find_in_cache (cache, method)))
852 mono_init_com_types ();
854 if (!method->klass->vtable)
855 mono_class_setup_vtable (method->klass);
857 if (!method->klass->methods)
858 mono_class_setup_methods (method->klass);
859 g_assert (!method->klass->exception_type); /*FIXME do proper error handling*/
861 sig = mono_method_signature (method);
862 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
864 /* if method klass is import, that means method
865 * is really a com call. let interop system emit it.
867 if (MONO_CLASS_IS_IMPORT(method->klass)) {
868 /* FIXME: we have to call actual class .ctor
869 * instead of just __ComObject .ctor.
871 if (!strcmp(method->name, ".ctor")) {
872 static MonoMethod *ctor = NULL;
875 ctor = mono_class_get_method_from_name (mono_defaults.com_object_class, ".ctor", 0);
876 mono_mb_emit_ldarg (mb, 0);
877 mono_mb_emit_managed_call (mb, ctor, NULL);
878 mono_mb_emit_byte (mb, CEE_RET);
881 static MonoMethod * ThrowExceptionForHR = NULL;
882 MonoMethod *adjusted_method;
886 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
888 // add local variables
889 ptr_this = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
890 if (!MONO_TYPE_IS_VOID (sig->ret))
891 retval = mono_mb_add_local (mb, sig->ret);
893 // get the type for the interface the method is defined on
894 // and then get the underlying COM interface for that type
895 mono_mb_emit_ldarg (mb, 0);
896 mono_mb_emit_ptr (mb, method);
897 mono_mb_emit_icall (mb, cominterop_get_method_interface);
898 mono_mb_emit_icon (mb, TRUE);
899 mono_mb_emit_icall (mb, cominterop_get_interface);
900 mono_mb_emit_stloc (mb, ptr_this);
902 // arg 1 is unmanaged this pointer
903 mono_mb_emit_ldloc (mb, ptr_this);
906 for (i = 1; i <= sig->param_count; i++)
907 mono_mb_emit_ldarg (mb, i);
909 // push managed return value as byref last argument
910 if (!MONO_TYPE_IS_VOID (sig->ret) && !preserve_sig)
911 mono_mb_emit_ldloc_addr (mb, retval);
913 adjusted_method = cominterop_get_native_wrapper_adjusted (method);
914 mono_mb_emit_managed_call (mb, adjusted_method, NULL);
917 if (!ThrowExceptionForHR)
918 ThrowExceptionForHR = mono_class_get_method_from_name (mono_defaults.marshal_class, "ThrowExceptionForHR", 1);
919 mono_mb_emit_managed_call (mb, ThrowExceptionForHR, NULL);
921 // load return value managed is expecting
922 if (!MONO_TYPE_IS_VOID (sig->ret))
923 mono_mb_emit_ldloc (mb, retval);
926 mono_mb_emit_byte (mb, CEE_RET);
931 /* Does this case ever get hit? */
933 char *msg = g_strdup ("non imported interfaces on \
934 imported classes is not yet implemented.");
935 mono_mb_emit_exception (mb, "NotSupportedException", msg);
937 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
939 res = mono_mb_create_and_cache (cache, method,
940 mb, csig, csig->param_count + 16);
946 * mono_cominterop_get_invoke:
947 * @method: managed method
949 * Returns: the generated method that calls the underlying __ComObject
950 * rather than the proxy object.
953 mono_cominterop_get_invoke (MonoMethod *method)
955 MonoMethodSignature *sig;
956 MonoMethodBuilder *mb;
959 GHashTable* cache = mono_marshal_get_cache (&method->klass->image->cominterop_invoke_cache, mono_aligned_addr_hash, NULL);
963 if ((res = mono_marshal_find_in_cache (cache, method)))
966 sig = mono_signature_no_pinvoke (method);
968 /* we cant remote methods without this pointer */
972 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP_INVOKE);
974 /* get real proxy object, which is a ComInteropProxy in this case*/
975 temp_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
976 mono_mb_emit_ldarg (mb, 0);
977 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
978 mono_mb_emit_byte (mb, CEE_LDIND_REF);
980 /* load the RCW from the ComInteropProxy*/
981 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
982 mono_mb_emit_byte (mb, CEE_LDIND_REF);
984 /* load args and make the call on the RCW */
985 for (i = 1; i <= sig->param_count; i++)
986 mono_mb_emit_ldarg (mb, i);
988 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
989 MonoMethod * native_wrapper = mono_cominterop_get_native_wrapper(method);
990 mono_mb_emit_managed_call (mb, native_wrapper, NULL);
993 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
994 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
996 mono_mb_emit_op (mb, CEE_CALL, method);
999 if (!strcmp(method->name, ".ctor")) {
1000 static MonoClass *com_interop_proxy_class = NULL;
1001 static MonoMethod *cache_proxy = NULL;
1003 if (!com_interop_proxy_class)
1004 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
1006 cache_proxy = mono_class_get_method_from_name (com_interop_proxy_class, "CacheProxy", 0);
1008 mono_mb_emit_ldarg (mb, 0);
1009 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
1010 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1011 mono_mb_emit_managed_call (mb, cache_proxy, NULL);
1014 mono_marshal_emit_thread_interrupt_checkpoint (mb);
1016 mono_mb_emit_byte (mb, CEE_RET);
1018 res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
1024 /* Maps a managed object to its unmanaged representation
1025 * i.e. it's COM Callable Wrapper (CCW).
1029 static GHashTable* ccw_hash = NULL;
1031 /* Maps a CCW interface to it's containing CCW.
1032 * Note that a CCW support many interfaces.
1034 * Value: MonoCCWInterface*
1036 static GHashTable* ccw_interface_hash = NULL;
1038 /* Maps the IUnknown value of a RCW to
1039 * it's MonoComInteropProxy*.
1043 static GHashTable* rcw_hash = NULL;
1046 mono_cominterop_emit_marshal_com_interface (EmitMarshalContext *m, int argnum,
1048 MonoMarshalSpec *spec,
1049 int conv_arg, MonoType **conv_arg_type,
1050 MarshalAction action)
1052 MonoMethodBuilder *mb = m->mb;
1053 MonoClass *klass = t->data.klass;
1054 static MonoMethod* get_object_for_iunknown = NULL;
1055 static MonoMethod* get_iunknown_for_object_internal = NULL;
1056 static MonoMethod* get_com_interface_for_object_internal = NULL;
1057 static MonoMethod* get_idispatch_for_object_internal = NULL;
1058 static MonoMethod* marshal_release = NULL;
1059 static MonoMethod* AddRef = NULL;
1060 if (!get_object_for_iunknown)
1061 get_object_for_iunknown = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForIUnknown", 1);
1062 if (!get_iunknown_for_object_internal)
1063 get_iunknown_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIUnknownForObjectInternal", 1);
1064 if (!get_idispatch_for_object_internal)
1065 get_idispatch_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIDispatchForObjectInternal", 1);
1066 if (!get_com_interface_for_object_internal)
1067 get_com_interface_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetComInterfaceForObjectInternal", 2);
1068 if (!marshal_release)
1069 marshal_release = mono_class_get_method_from_name (mono_defaults.marshal_class, "Release", 1);
1071 /* COM types are initialized lazily */
1072 mono_init_com_types ();
1075 case MARSHAL_ACTION_CONV_IN: {
1076 guint32 pos_null = 0;
1078 *conv_arg_type = &mono_defaults.int_class->byval_arg;
1079 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1081 mono_mb_emit_ptr (mb, NULL);
1082 mono_mb_emit_stloc (mb, conv_arg);
1084 /* we dont need any conversions for out parameters */
1085 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
1088 mono_mb_emit_ldarg (mb, argnum);
1090 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1091 /* if null just break, conv arg was already inited to 0 */
1092 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1094 mono_mb_emit_ldarg (mb, argnum);
1096 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1098 if (klass && klass != mono_defaults.object_class) {
1099 mono_mb_emit_ptr (mb, t);
1100 mono_mb_emit_icall (mb, cominterop_type_from_handle);
1101 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
1103 else if (spec->native == MONO_NATIVE_IUNKNOWN)
1104 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
1105 else if (spec->native == MONO_NATIVE_IDISPATCH)
1106 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
1107 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
1108 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
1110 g_assert_not_reached ();
1111 mono_mb_emit_stloc (mb, conv_arg);
1112 mono_mb_patch_short_branch (mb, pos_null);
1116 case MARSHAL_ACTION_CONV_OUT: {
1117 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
1119 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
1120 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1122 mono_mb_emit_ldarg (mb, argnum);
1123 mono_mb_emit_byte (mb, CEE_LDNULL);
1124 mono_mb_emit_byte (mb, CEE_STIND_REF);
1126 mono_mb_emit_ldloc (mb, conv_arg);
1127 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1129 mono_mb_emit_ldloc (mb, conv_arg);
1130 mono_mb_emit_icon (mb, TRUE);
1131 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1132 mono_mb_emit_stloc (mb, ccw_obj);
1133 mono_mb_emit_ldloc (mb, ccw_obj);
1134 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
1136 mono_mb_emit_ldarg (mb, argnum);
1137 mono_mb_emit_ldloc (mb, conv_arg);
1138 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
1140 if (klass && klass != mono_defaults.object_class)
1141 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1142 mono_mb_emit_byte (mb, CEE_STIND_REF);
1144 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
1146 /* is already managed object */
1147 mono_mb_patch_short_branch (mb, pos_ccw);
1148 mono_mb_emit_ldarg (mb, argnum);
1149 mono_mb_emit_ldloc (mb, ccw_obj);
1151 if (klass && klass != mono_defaults.object_class)
1152 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1153 mono_mb_emit_byte (mb, CEE_STIND_REF);
1155 mono_mb_patch_short_branch (mb, pos_end);
1157 /* need to call Release to follow COM rules of ownership */
1158 mono_mb_emit_ldloc (mb, conv_arg);
1159 mono_mb_emit_managed_call (mb, marshal_release, NULL);
1160 mono_mb_emit_byte (mb, CEE_POP);
1163 mono_mb_patch_short_branch (mb, pos_null);
1167 case MARSHAL_ACTION_PUSH:
1169 mono_mb_emit_ldloc_addr (mb, conv_arg);
1171 mono_mb_emit_ldloc (mb, conv_arg);
1174 case MARSHAL_ACTION_CONV_RESULT: {
1175 int ccw_obj, ret_ptr;
1176 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
1177 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1178 ret_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1180 /* store return value */
1181 mono_mb_emit_stloc (mb, ret_ptr);
1183 mono_mb_emit_ldloc (mb, ret_ptr);
1184 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1186 mono_mb_emit_ldloc (mb, ret_ptr);
1187 mono_mb_emit_icon (mb, TRUE);
1188 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1189 mono_mb_emit_stloc (mb, ccw_obj);
1190 mono_mb_emit_ldloc (mb, ccw_obj);
1191 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
1193 mono_mb_emit_ldloc (mb, ret_ptr);
1194 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
1196 if (klass && klass != mono_defaults.object_class)
1197 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1198 mono_mb_emit_stloc (mb, 3);
1200 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
1202 /* is already managed object */
1203 mono_mb_patch_short_branch (mb, pos_ccw);
1204 mono_mb_emit_ldloc (mb, ccw_obj);
1206 if (klass && klass != mono_defaults.object_class)
1207 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1208 mono_mb_emit_stloc (mb, 3);
1210 mono_mb_patch_short_branch (mb, pos_end);
1212 /* need to call Release to follow COM rules of ownership */
1213 mono_mb_emit_ldloc (mb, ret_ptr);
1214 mono_mb_emit_managed_call (mb, marshal_release, NULL);
1215 mono_mb_emit_byte (mb, CEE_POP);
1218 mono_mb_patch_short_branch (mb, pos_null);
1222 case MARSHAL_ACTION_MANAGED_CONV_IN: {
1224 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
1225 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1227 klass = mono_class_from_mono_type (t);
1228 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
1229 *conv_arg_type = &mono_defaults.int_class->byval_arg;
1231 mono_mb_emit_byte (mb, CEE_LDNULL);
1232 mono_mb_emit_stloc (mb, conv_arg);
1233 if (t->attrs & PARAM_ATTRIBUTE_OUT)
1236 mono_mb_emit_ldarg (mb, argnum);
1238 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1239 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1241 mono_mb_emit_ldarg (mb, argnum);
1243 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1244 mono_mb_emit_icon (mb, TRUE);
1245 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1246 mono_mb_emit_stloc (mb, ccw_obj);
1247 mono_mb_emit_ldloc (mb, ccw_obj);
1248 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
1251 mono_mb_emit_ldarg (mb, argnum);
1253 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1254 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
1256 if (klass && klass != mono_defaults.object_class)
1257 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1258 mono_mb_emit_stloc (mb, conv_arg);
1259 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
1261 /* is already managed object */
1262 mono_mb_patch_short_branch (mb, pos_ccw);
1263 mono_mb_emit_ldloc (mb, ccw_obj);
1264 if (klass && klass != mono_defaults.object_class)
1265 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1266 mono_mb_emit_stloc (mb, conv_arg);
1268 mono_mb_patch_short_branch (mb, pos_end);
1270 mono_mb_patch_short_branch (mb, pos_null);
1274 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
1275 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT) {
1276 guint32 pos_null = 0;
1279 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
1281 mono_mb_emit_ldarg (mb, argnum);
1282 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1283 mono_mb_emit_byte (mb, CEE_STIND_I);
1285 mono_mb_emit_ldloc (mb, conv_arg);
1286 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1288 /* to store later */
1289 mono_mb_emit_ldarg (mb, argnum);
1290 mono_mb_emit_ldloc (mb, conv_arg);
1291 if (klass && klass != mono_defaults.object_class) {
1292 mono_mb_emit_ptr (mb, t);
1293 mono_mb_emit_icall (mb, cominterop_type_from_handle);
1294 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
1296 else if (spec->native == MONO_NATIVE_IUNKNOWN)
1297 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
1298 else if (spec->native == MONO_NATIVE_IDISPATCH)
1299 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
1300 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
1301 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
1303 g_assert_not_reached ();
1304 mono_mb_emit_byte (mb, CEE_STIND_I);
1306 mono_mb_emit_ldarg (mb, argnum);
1307 mono_mb_emit_byte (mb, CEE_LDIND_I);
1308 mono_mb_emit_managed_call (mb, AddRef, NULL);
1309 mono_mb_emit_byte (mb, CEE_POP);
1311 mono_mb_patch_short_branch (mb, pos_null);
1316 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
1317 guint32 pos_null = 0;
1319 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1322 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
1324 /* store return value */
1325 mono_mb_emit_stloc (mb, ccw_obj);
1327 mono_mb_emit_ldloc (mb, ccw_obj);
1329 /* if null just break, conv arg was already inited to 0 */
1330 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1332 /* to store later */
1333 mono_mb_emit_ldloc (mb, ccw_obj);
1334 if (klass && klass != mono_defaults.object_class) {
1335 mono_mb_emit_ptr (mb, t);
1336 mono_mb_emit_icall (mb, cominterop_type_from_handle);
1337 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
1339 else if (spec->native == MONO_NATIVE_IUNKNOWN)
1340 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
1341 else if (spec->native == MONO_NATIVE_IDISPATCH)
1342 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
1343 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
1344 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
1346 g_assert_not_reached ();
1347 mono_mb_emit_stloc (mb, 3);
1348 mono_mb_emit_ldloc (mb, 3);
1350 mono_mb_emit_managed_call (mb, AddRef, NULL);
1351 mono_mb_emit_byte (mb, CEE_POP);
1353 mono_mb_patch_short_branch (mb, pos_null);
1358 g_assert_not_reached ();
1366 int (STDCALL *QueryInterface)(gpointer pUnk, gpointer riid, gpointer* ppv);
1367 int (STDCALL *AddRef)(gpointer pUnk);
1368 int (STDCALL *Release)(gpointer pUnk);
1371 #define MONO_S_OK 0x00000000L
1372 #define MONO_E_NOINTERFACE 0x80004002L
1373 #define MONO_E_NOTIMPL 0x80004001L
1376 ves_icall_System_Runtime_InteropServices_Marshal_AddRefInternal (gpointer pUnk)
1379 return (*(MonoIUnknown**)pUnk)->AddRef(pUnk);
1383 ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (gpointer pUnk, gpointer riid, gpointer* ppv)
1386 return (*(MonoIUnknown**)pUnk)->QueryInterface(pUnk, riid, ppv);
1390 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (gpointer pUnk)
1393 return (*(MonoIUnknown**)pUnk)->Release(pUnk);
1396 static gboolean cominterop_can_support_dispatch (MonoClass* klass)
1398 if (!(klass->flags & TYPE_ATTRIBUTE_PUBLIC) )
1401 if (!cominterop_com_visible (klass))
1408 cominterop_get_idispatch_for_object (MonoObject* object)
1413 if (cominterop_object_is_rcw (object)) {
1414 return cominterop_get_interface (((MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp)->com_object,
1415 mono_defaults.idispatch_class, TRUE);
1418 MonoClass* klass = mono_object_class (object);
1419 if (!cominterop_can_support_dispatch (klass) )
1420 cominterop_raise_hr_exception (MONO_E_NOINTERFACE);
1421 return cominterop_get_ccw (object, mono_defaults.idispatch_class);
1426 ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal (MonoObject* object)
1432 mono_init_com_types ();
1434 if (cominterop_object_is_rcw (object)) {
1435 MonoClass *klass = NULL;
1436 MonoRealProxy* real_proxy = NULL;
1439 klass = mono_object_class (object);
1440 if (klass != mono_defaults.transparent_proxy_class) {
1441 g_assert_not_reached ();
1445 real_proxy = ((MonoTransparentProxy*)object)->rp;
1447 g_assert_not_reached ();
1451 klass = mono_object_class (real_proxy);
1452 if (klass != mono_defaults.com_interop_proxy_class) {
1453 g_assert_not_reached ();
1457 if (!((MonoComInteropProxy*)real_proxy)->com_object) {
1458 g_assert_not_reached ();
1462 return ((MonoComInteropProxy*)real_proxy)->com_object->iunknown;
1465 return cominterop_get_ccw (object, mono_defaults.iunknown_class);
1468 g_assert_not_reached ();
1473 ves_icall_System_Runtime_InteropServices_Marshal_GetObjectForCCW (void* pUnk)
1476 MonoObject* object = NULL;
1481 /* see if it is a CCW */
1482 object = cominterop_get_ccw_object ((MonoCCWInterface*)pUnk, TRUE);
1486 g_assert_not_reached ();
1491 ves_icall_System_Runtime_InteropServices_Marshal_GetIDispatchForObjectInternal (MonoObject* object)
1494 mono_init_com_types ();
1496 return cominterop_get_idispatch_for_object (object);
1498 g_assert_not_reached ();
1503 ves_icall_System_Runtime_InteropServices_Marshal_GetCCW (MonoObject* object, MonoReflectionType* type)
1506 MonoClass* klass = NULL;
1509 g_assert (type->type);
1510 klass = mono_type_get_class (type->type);
1512 itf = cominterop_get_ccw (object, klass);
1516 g_assert_not_reached ();
1522 ves_icall_System_Runtime_InteropServices_Marshal_IsComObject (MonoObject* object)
1525 return (MonoBoolean)cominterop_object_is_rcw (object);
1527 g_assert_not_reached ();
1532 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseComObjectInternal (MonoObject* object)
1535 MonoComInteropProxy* proxy = NULL;
1536 gint32 ref_count = 0;
1539 g_assert (cominterop_object_is_rcw (object));
1541 proxy = (MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp;
1544 if (proxy->ref_count == 0)
1547 ref_count = InterlockedDecrement (&proxy->ref_count);
1549 g_assert (ref_count >= 0);
1552 ves_icall_System_ComObject_ReleaseInterfaces (proxy->com_object);
1556 g_assert_not_reached ();
1561 ves_icall_System_Runtime_InteropServices_Marshal_GetComSlotForMethodInfoInternal (MonoReflectionMethod *m)
1563 MONO_ARCH_SAVE_REGS;
1566 return cominterop_get_com_slot_for_method (m->method);
1568 g_assert_not_reached ();
1572 /* Only used for COM RCWs */
1574 ves_icall_System_ComObject_CreateRCW (MonoReflectionType *type)
1580 MONO_ARCH_SAVE_REGS;
1582 domain = mono_object_domain (type);
1583 klass = mono_class_from_mono_type (type->type);
1585 /* call mono_object_new_alloc_specific instead of mono_object_new
1586 * because we want to actually create object. mono_object_new checks
1587 * to see if type is import and creates transparent proxy. this method
1588 * is called by the corresponding real proxy to create the real RCW.
1589 * Constructor does not need to be called. Will be called later.
1591 obj = mono_object_new_alloc_specific (mono_class_vtable_full (domain, klass, TRUE));
1596 cominterop_rcw_interface_finalizer (gpointer key, gpointer value, gpointer user_data)
1598 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (value);
1603 ves_icall_System_ComObject_ReleaseInterfaces (MonoComObject* obj)
1606 if (obj->itf_hash) {
1607 guint32 gchandle = 0;
1608 mono_cominterop_lock ();
1609 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, obj->iunknown));
1611 mono_gchandle_free (gchandle);
1612 g_hash_table_remove (rcw_hash, obj->iunknown);
1615 g_hash_table_foreach_remove (obj->itf_hash, cominterop_rcw_interface_finalizer, NULL);
1616 g_hash_table_destroy (obj->itf_hash);
1617 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (obj->iunknown);
1618 obj->itf_hash = obj->iunknown = NULL;
1619 mono_cominterop_unlock ();
1624 cominterop_rcw_finalizer (gpointer key, gpointer value, gpointer user_data)
1626 guint32 gchandle = 0;
1628 gchandle = GPOINTER_TO_UINT (value);
1630 MonoComInteropProxy* proxy = (MonoComInteropProxy*)mono_gchandle_get_target (gchandle);
1633 if (proxy->com_object->itf_hash) {
1634 g_hash_table_foreach_remove (proxy->com_object->itf_hash, cominterop_rcw_interface_finalizer, NULL);
1635 g_hash_table_destroy (proxy->com_object->itf_hash);
1637 if (proxy->com_object->iunknown)
1638 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (proxy->com_object->iunknown);
1639 proxy->com_object->itf_hash = proxy->com_object->iunknown = NULL;
1642 mono_gchandle_free (gchandle);
1649 cominterop_release_all_rcws (void)
1654 mono_cominterop_lock ();
1656 g_hash_table_foreach_remove (rcw_hash, cominterop_rcw_finalizer, NULL);
1657 g_hash_table_destroy (rcw_hash);
1660 mono_cominterop_unlock ();
1664 ves_icall_System_ComObject_GetInterfaceInternal (MonoComObject* obj, MonoReflectionType* type, MonoBoolean throw_exception)
1667 return cominterop_get_interface (obj, mono_type_get_class (type->type), (gboolean)throw_exception);
1669 g_assert_not_reached ();
1674 ves_icall_Mono_Interop_ComInteropProxy_AddProxy (gpointer pUnk, MonoComInteropProxy* proxy)
1677 guint32 gchandle = 0;
1679 mono_cominterop_lock ();
1680 rcw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
1681 mono_cominterop_unlock ();
1684 gchandle = mono_gchandle_new_weakref ((MonoObject*)proxy, FALSE);
1686 mono_cominterop_lock ();
1687 g_hash_table_insert (rcw_hash, pUnk, GUINT_TO_POINTER (gchandle));
1688 mono_cominterop_unlock ();
1690 g_assert_not_reached ();
1694 MonoComInteropProxy*
1695 ves_icall_Mono_Interop_ComInteropProxy_FindProxy (gpointer pUnk)
1698 MonoComInteropProxy* proxy = NULL;
1699 guint32 gchandle = 0;
1701 mono_cominterop_lock ();
1703 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, pUnk));
1704 mono_cominterop_unlock ();
1706 proxy = (MonoComInteropProxy*)mono_gchandle_get_target (gchandle);
1707 /* proxy is null means we need to free up old RCW */
1709 mono_gchandle_free (gchandle);
1710 g_hash_table_remove (rcw_hash, pUnk);
1715 g_assert_not_reached ();
1720 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
1722 MONO_ARCH_SAVE_REGS;
1724 return mono_string_from_bstr(ptr);
1728 ves_icall_System_Runtime_InteropServices_Marshal_StringToBSTR (MonoString* ptr)
1730 MONO_ARCH_SAVE_REGS;
1732 return mono_string_to_bstr(ptr);
1736 ves_icall_System_Runtime_InteropServices_Marshal_FreeBSTR (gpointer ptr)
1738 MONO_ARCH_SAVE_REGS;
1740 mono_free_bstr (ptr);
1744 * cominterop_get_ccw_object:
1745 * @ccw_entry: a pointer to the CCWEntry
1746 * @verify: verify ccw_entry is in fact a ccw
1748 * Returns: the corresponding object for the CCW
1751 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify)
1753 MonoCCW *ccw = NULL;
1755 /* no CCW's exist yet */
1756 if (!ccw_interface_hash)
1760 ccw = g_hash_table_lookup (ccw_interface_hash, ccw_entry);
1763 ccw = ccw_entry->ccw;
1767 return mono_gchandle_get_target (ccw->gc_handle);
1773 cominterop_setup_marshal_context (EmitMarshalContext *m, MonoMethod *method)
1775 MonoMethodSignature *sig, *csig;
1776 sig = mono_method_signature (method);
1777 /* we copy the signature, so that we can modify it */
1778 /* FIXME: which to use? */
1779 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
1780 /* csig = mono_metadata_signature_dup (sig); */
1782 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
1784 csig->call_convention = MONO_CALL_STDCALL;
1786 csig->call_convention = MONO_CALL_C;
1791 m->image = method->klass->image;
1799 * cominterop_get_ccw:
1800 * @object: a pointer to the object
1801 * @itf: interface type needed
1803 * Returns: a value indicating if the object is a
1804 * Runtime Callable Wrapper (RCW) for a COM object
1807 cominterop_get_ccw (MonoObject* object, MonoClass* itf)
1810 MonoCCW *ccw = NULL;
1811 MonoCCWInterface* ccw_entry = NULL;
1812 gpointer *vtable = NULL;
1813 static gpointer iunknown[3] = {NULL, NULL, NULL};
1814 static gpointer idispatch[4] = {NULL, NULL, NULL, NULL};
1815 MonoClass* iface = NULL;
1816 MonoClass* klass = NULL;
1817 EmitMarshalContext m;
1819 int method_count = 0;
1820 GList *ccw_list, *ccw_list_item;
1821 MonoCustomAttrInfo *cinfo = NULL;
1826 klass = mono_object_get_class (object);
1828 mono_cominterop_lock ();
1830 ccw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
1831 if (!ccw_interface_hash)
1832 ccw_interface_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
1834 ccw_list = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
1835 mono_cominterop_unlock ();
1837 ccw_list_item = ccw_list;
1838 while (ccw_list_item) {
1839 MonoCCW* ccw_iter = ccw_list_item->data;
1840 if (mono_gchandle_get_target (ccw_iter->gc_handle) == object) {
1844 ccw_list_item = g_list_next(ccw_list_item);
1847 if (!iunknown [0]) {
1848 iunknown [0] = cominterop_ccw_queryinterface;
1849 iunknown [1] = cominterop_ccw_addref;
1850 iunknown [2] = cominterop_ccw_release;
1853 if (!idispatch [0]) {
1854 idispatch [0] = cominterop_ccw_get_type_info_count;
1855 idispatch [1] = cominterop_ccw_get_type_info;
1856 idispatch [2] = cominterop_ccw_get_ids_of_names;
1857 idispatch [3] = cominterop_ccw_invoke;
1861 ccw = g_new0 (MonoCCW, 1);
1863 ccw->free_marshaler = 0;
1865 ccw->vtable_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
1867 /* just alloc a weak handle until we are addref'd*/
1868 ccw->gc_handle = mono_gchandle_new_weakref (object, FALSE);
1871 ccw_list = g_list_alloc ();
1872 ccw_list->data = ccw;
1875 ccw_list = g_list_append (ccw_list, ccw);
1876 mono_cominterop_lock ();
1877 g_hash_table_insert (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)), ccw_list);
1878 mono_cominterop_unlock ();
1879 /* register for finalization to clean up ccw */
1880 mono_object_register_finalizer (object);
1883 cinfo = mono_custom_attrs_from_class (itf);
1885 static MonoClass* coclass_attribute = NULL;
1886 if (!coclass_attribute)
1887 coclass_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "CoClassAttribute");
1888 if (mono_custom_attrs_has_attr (cinfo, coclass_attribute)) {
1889 g_assert(itf->interface_count && itf->interfaces[0]);
1890 itf = itf->interfaces[0];
1893 mono_custom_attrs_free (cinfo);
1897 if (iface == mono_defaults.iunknown_class) {
1900 else if (iface == mono_defaults.idispatch_class) {
1904 method_count += iface->method.count;
1905 start_slot = cominterop_get_com_slot_begin (iface);
1909 ccw_entry = g_hash_table_lookup (ccw->vtable_hash, itf);
1912 int vtable_index = method_count-1+start_slot;
1913 vtable = mono_image_alloc0 (klass->image, sizeof (gpointer)*(method_count+start_slot));
1914 memcpy (vtable, iunknown, sizeof (iunknown));
1915 if (start_slot == 7)
1916 memcpy (vtable+3, idispatch, sizeof (idispatch));
1919 for (i = iface->method.count-1; i >= 0;i--) {
1920 int param_index = 0;
1921 MonoMethodBuilder *mb;
1922 MonoMarshalSpec ** mspecs;
1923 MonoMethod *wrapper_method, *adjust_method;
1924 MonoMethod *method = iface->methods [i];
1925 MonoMethodSignature* sig_adjusted;
1926 MonoMethodSignature* sig = mono_method_signature (method);
1927 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
1930 mb = mono_mb_new (iface, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
1931 adjust_method = cominterop_get_managed_wrapper_adjusted (method);
1932 sig_adjusted = mono_method_signature (adjust_method);
1934 mspecs = g_new (MonoMarshalSpec*, sig_adjusted->param_count + 1);
1935 mono_method_get_marshal_info (method, mspecs);
1938 /* move managed args up one */
1939 for (param_index = sig->param_count; param_index >= 1; param_index--) {
1940 int mspec_index = param_index+1;
1941 mspecs [mspec_index] = mspecs [param_index];
1943 if (mspecs[mspec_index] == NULL) {
1944 if (sig_adjusted->params[param_index]->type == MONO_TYPE_OBJECT) {
1945 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
1946 mspecs[mspec_index]->native = MONO_NATIVE_STRUCT;
1948 else if (sig_adjusted->params[param_index]->type == MONO_TYPE_STRING) {
1949 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
1950 mspecs[mspec_index]->native = MONO_NATIVE_BSTR;
1952 else if (sig_adjusted->params[param_index]->type == MONO_TYPE_CLASS) {
1953 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
1954 mspecs[mspec_index]->native = MONO_NATIVE_INTERFACE;
1956 else if (sig_adjusted->params[param_index]->type == MONO_NATIVE_BOOLEAN) {
1957 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
1958 mspecs[mspec_index]->native = MONO_NATIVE_VARIANTBOOL;
1961 /* increase SizeParamIndex since we've added a param */
1962 if (sig_adjusted->params[param_index]->type == MONO_TYPE_ARRAY ||
1963 sig_adjusted->params[param_index]->type == MONO_TYPE_SZARRAY)
1964 if (mspecs[mspec_index]->data.array_data.param_num != -1)
1965 mspecs[mspec_index]->data.array_data.param_num++;
1969 /* first arg is IntPtr for interface */
1972 /* move return spec to last param */
1973 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret)) {
1974 if (mspecs [0] == NULL) {
1975 if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_TYPE_OBJECT) {
1976 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
1977 mspecs[0]->native = MONO_NATIVE_STRUCT;
1979 else if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_TYPE_STRING) {
1980 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
1981 mspecs[0]->native = MONO_NATIVE_BSTR;
1983 else if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_TYPE_CLASS) {
1984 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
1985 mspecs[0]->native = MONO_NATIVE_INTERFACE;
1987 else if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_NATIVE_BOOLEAN) {
1988 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
1989 mspecs[0]->native = MONO_NATIVE_VARIANTBOOL;
1993 mspecs [sig_adjusted->param_count] = mspecs [0];
1997 /* skip visiblity since we call internal methods */
1998 mb->skip_visibility = TRUE;
2000 cominterop_setup_marshal_context (&m, adjust_method);
2002 mono_marshal_emit_managed_wrapper (mb, sig_adjusted, mspecs, &m, adjust_method, NULL);
2003 mono_loader_lock ();
2004 mono_cominterop_lock ();
2005 wrapper_method = mono_mb_create_method (mb, m.csig, m.csig->param_count + 16);
2006 mono_cominterop_unlock ();
2007 mono_loader_unlock ();
2009 vtable [vtable_index--] = mono_compile_method (wrapper_method);
2012 for (param_index = sig_adjusted->param_count; param_index >= 0; param_index--)
2013 if (mspecs [param_index])
2014 mono_metadata_free_marshal_spec (mspecs [param_index]);
2018 ccw_entry = g_new0 (MonoCCWInterface, 1);
2019 ccw_entry->ccw = ccw;
2020 ccw_entry->vtable = vtable;
2021 g_hash_table_insert (ccw->vtable_hash, itf, ccw_entry);
2022 g_hash_table_insert (ccw_interface_hash, ccw_entry, ccw);
2029 mono_marshal_free_ccw_entry (gpointer key, gpointer value, gpointer user_data)
2031 g_hash_table_remove (ccw_interface_hash, value);
2038 * mono_marshal_free_ccw:
2039 * @object: the mono object
2041 * Returns: whether the object had a CCW
2044 mono_marshal_free_ccw (MonoObject* object)
2046 GList *ccw_list, *ccw_list_orig, *ccw_list_item;
2047 /* no ccw's were created */
2048 if (!ccw_hash || g_hash_table_size (ccw_hash) == 0)
2051 /* need to cache orig list address to remove from hash_table if empty */
2052 mono_cominterop_lock ();
2053 ccw_list = ccw_list_orig = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
2054 mono_cominterop_unlock ();
2059 ccw_list_item = ccw_list;
2060 while (ccw_list_item) {
2061 MonoCCW* ccw_iter = ccw_list_item->data;
2062 MonoObject* handle_target = mono_gchandle_get_target (ccw_iter->gc_handle);
2064 /* Looks like the GC NULLs the weakref handle target before running the
2065 * finalizer. So if we get a NULL target, destroy the CCW as well. */
2066 if (!handle_target || handle_target == object) {
2067 /* remove all interfaces */
2068 g_hash_table_foreach_remove (ccw_iter->vtable_hash, mono_marshal_free_ccw_entry, NULL);
2069 g_hash_table_destroy (ccw_iter->vtable_hash);
2071 /* get next before we delete */
2072 ccw_list_item = g_list_next(ccw_list_item);
2074 /* remove ccw from list */
2075 ccw_list = g_list_remove (ccw_list, ccw_iter);
2079 ccw_list_item = g_list_next(ccw_list_item);
2082 /* if list is empty remove original address from hash */
2083 if (g_list_length (ccw_list) == 0)
2084 g_hash_table_remove (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
2091 * cominterop_get_managed_wrapper_adjusted:
2092 * @method: managed COM Interop method
2094 * Returns: the generated method to call with signature matching
2095 * the unmanaged COM Method signature
2098 cominterop_get_managed_wrapper_adjusted (MonoMethod *method)
2100 static MonoMethod *get_hr_for_exception = NULL;
2101 MonoMethod *res = NULL;
2102 MonoMethodBuilder *mb;
2103 MonoMarshalSpec **mspecs;
2104 MonoMethodSignature *sig, *sig_native;
2105 MonoExceptionClause *main_clause = NULL;
2109 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
2111 if (!get_hr_for_exception)
2112 get_hr_for_exception = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetHRForException", -1);
2114 sig = mono_method_signature (method);
2116 /* create unmanaged wrapper */
2117 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
2119 sig_native = cominterop_method_signature (method);
2121 mspecs = g_new0 (MonoMarshalSpec*, sig_native->param_count+1);
2123 mono_method_get_marshal_info (method, mspecs);
2125 /* move managed args up one */
2126 for (i = sig->param_count; i >= 1; i--)
2127 mspecs [i+1] = mspecs [i];
2129 /* first arg is IntPtr for interface */
2132 /* move return spec to last param */
2133 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
2134 mspecs [sig_native->param_count] = mspecs [0];
2138 if (!preserve_sig) {
2139 hr = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
2141 else if (!MONO_TYPE_IS_VOID (sig->ret))
2142 hr = mono_mb_add_local (mb, sig->ret);
2145 main_clause = g_new0 (MonoExceptionClause, 1);
2146 main_clause->try_offset = mono_mb_get_label (mb);
2148 /* load last param to store result if not preserve_sig and not void */
2149 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
2150 mono_mb_emit_ldarg (mb, sig_native->param_count-1);
2152 /* the CCW -> object conversion */
2153 mono_mb_emit_ldarg (mb, 0);
2154 mono_mb_emit_icon (mb, FALSE);
2155 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
2157 for (i = 0; i < sig->param_count; i++)
2158 mono_mb_emit_ldarg (mb, i+1);
2160 mono_mb_emit_managed_call (mb, method, NULL);
2162 if (!MONO_TYPE_IS_VOID (sig->ret)) {
2163 if (!preserve_sig) {
2164 MonoClass *rclass = mono_class_from_mono_type (sig->ret);
2165 if (rclass->valuetype) {
2166 mono_mb_emit_op (mb, CEE_STOBJ, rclass);
2168 mono_mb_emit_byte (mb, mono_type_to_stind (sig->ret));
2171 mono_mb_emit_stloc (mb, hr);
2174 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
2176 /* Main exception catch */
2177 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
2178 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
2179 main_clause->data.catch_class = mono_defaults.object_class;
2182 main_clause->handler_offset = mono_mb_get_label (mb);
2184 if (!preserve_sig || (sig->ret && !sig->ret->byref && (sig->ret->type == MONO_TYPE_U4 || sig->ret->type == MONO_TYPE_I4))) {
2185 mono_mb_emit_managed_call (mb, get_hr_for_exception, NULL);
2186 mono_mb_emit_stloc (mb, hr);
2189 mono_mb_emit_byte (mb, CEE_POP);
2192 mono_mb_emit_branch (mb, CEE_LEAVE);
2193 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
2196 mono_mb_set_clauses (mb, 1, main_clause);
2198 mono_mb_patch_branch (mb, pos_leave);
2200 if (!preserve_sig || !MONO_TYPE_IS_VOID (sig->ret))
2201 mono_mb_emit_ldloc (mb, hr);
2203 mono_mb_emit_byte (mb, CEE_RET);
2205 mono_loader_lock ();
2206 mono_cominterop_lock ();
2207 res = mono_mb_create_method (mb, sig_native, sig_native->param_count + 16);
2208 mono_cominterop_unlock ();
2209 mono_loader_unlock ();
2213 for (i = sig_native->param_count; i >= 0; i--)
2215 mono_metadata_free_marshal_spec (mspecs [i]);
2222 * cominterop_mono_string_to_guid:
2224 * Converts the standard string representation of a GUID
2225 * to a 16 byte Microsoft GUID.
2228 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid) {
2229 gunichar2 * chars = mono_string_chars (string);
2231 static guint8 indexes[16] = {7, 5, 3, 1, 12, 10, 17, 15, 20, 22, 25, 27, 29, 31, 33, 35};
2233 for (i = 0; i < sizeof(indexes); i++)
2234 guid [i] = g_unichar_xdigit_value (chars [indexes [i]]) + (g_unichar_xdigit_value (chars [indexes [i] - 1]) << 4);
2238 cominterop_class_guid_equal (guint8* guid, MonoClass* klass)
2240 guint8 klass_guid [16];
2241 if (cominterop_class_guid (klass, klass_guid))
2242 return !memcmp (guid, klass_guid, sizeof (klass_guid));
2247 cominterop_ccw_addref (MonoCCWInterface* ccwe)
2249 gint32 ref_count = 0;
2250 MonoCCW* ccw = ccwe->ccw;
2252 g_assert (ccw->gc_handle);
2253 g_assert (ccw->ref_count >= 0);
2254 ref_count = InterlockedIncrement ((gint32*)&ccw->ref_count);
2255 if (ref_count == 1) {
2256 guint32 oldhandle = ccw->gc_handle;
2257 g_assert (oldhandle);
2258 /* since we now have a ref count, alloc a strong handle*/
2259 ccw->gc_handle = mono_gchandle_new (mono_gchandle_get_target (oldhandle), FALSE);
2260 mono_gchandle_free (oldhandle);
2266 cominterop_ccw_release (MonoCCWInterface* ccwe)
2268 gint32 ref_count = 0;
2269 MonoCCW* ccw = ccwe->ccw;
2271 g_assert (ccw->ref_count > 0);
2272 ref_count = InterlockedDecrement ((gint32*)&ccw->ref_count);
2273 if (ref_count == 0) {
2274 /* allow gc of object */
2275 guint32 oldhandle = ccw->gc_handle;
2276 g_assert (oldhandle);
2278 if (ccw->free_marshaler)
2279 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (ccw->free_marshaler);
2281 ccw->gc_handle = mono_gchandle_new_weakref (mono_gchandle_get_target (oldhandle), FALSE);
2282 mono_gchandle_free (oldhandle);
2288 static const IID MONO_IID_IMarshal = {0x3, 0x0, 0x0, {0xC0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x46}};
2292 /* All ccw objects are free threaded */
2294 cominterop_ccw_getfreethreadedmarshaler (MonoCCW* ccw, MonoObject* object, gpointer* ppv)
2297 if (!ccw->free_marshaler) {
2300 tunk = cominterop_get_ccw (object, mono_defaults.iunknown_class);
2301 /* remember to addref on QI */
2302 cominterop_ccw_addref (tunk);
2303 ret = CoCreateFreeThreadedMarshaler (tunk, (LPUNKNOWN*)&ccw->free_marshaler);
2304 cominterop_ccw_release(tunk);
2307 if (!ccw->free_marshaler)
2308 return MONO_E_NOINTERFACE;
2310 return ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (ccw->free_marshaler, (IID*)&MONO_IID_IMarshal, ppv);
2312 return MONO_E_NOINTERFACE;
2318 cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv)
2321 MonoClass *itf = NULL;
2323 MonoCCW* ccw = ccwe->ccw;
2324 MonoClass* klass = NULL;
2325 MonoClass* klass_iter = NULL;
2326 MonoObject* object = mono_gchandle_get_target (ccw->gc_handle);
2329 klass = mono_object_class (object);
2334 if (!mono_domain_get ())
2335 mono_thread_attach (mono_get_root_domain ());
2337 /* handle IUnknown special */
2338 if (cominterop_class_guid_equal (riid, mono_defaults.iunknown_class)) {
2339 *ppv = cominterop_get_ccw (object, mono_defaults.iunknown_class);
2340 /* remember to addref on QI */
2341 cominterop_ccw_addref (*ppv);
2345 /* handle IDispatch special */
2346 if (cominterop_class_guid_equal (riid, mono_defaults.idispatch_class)) {
2347 if (!cominterop_can_support_dispatch (klass))
2348 return MONO_E_NOINTERFACE;
2350 *ppv = cominterop_get_ccw (object, mono_defaults.idispatch_class);
2351 /* remember to addref on QI */
2352 cominterop_ccw_addref (*ppv);
2357 /* handle IMarshal special */
2358 if (0 == memcmp (riid, &MONO_IID_IMarshal, sizeof (IID))) {
2359 return cominterop_ccw_getfreethreadedmarshaler (ccw, object, ppv);
2363 while (klass_iter && klass_iter != mono_defaults.object_class) {
2364 ifaces = mono_class_get_implemented_interfaces (klass_iter);
2366 for (i = 0; i < ifaces->len; ++i) {
2367 MonoClass *ic = NULL;
2368 ic = g_ptr_array_index (ifaces, i);
2369 if (cominterop_class_guid_equal (riid, ic)) {
2374 g_ptr_array_free (ifaces, TRUE);
2380 klass_iter = klass_iter->parent;
2383 *ppv = cominterop_get_ccw (object, itf);
2384 /* remember to addref on QI */
2385 cominterop_ccw_addref (*ppv);
2389 return MONO_E_NOINTERFACE;
2393 cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo)
2395 return MONO_E_NOTIMPL;
2399 cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo)
2401 return MONO_E_NOTIMPL;
2405 cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
2406 gunichar2** rgszNames, guint32 cNames,
2407 guint32 lcid, gint32 *rgDispId)
2409 return MONO_E_NOTIMPL;
2413 cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
2414 gpointer riid, guint32 lcid,
2415 guint16 wFlags, gpointer pDispParams,
2416 gpointer pVarResult, gpointer pExcepInfo,
2419 return MONO_E_NOTIMPL;
2422 typedef gpointer (STDCALL *SysAllocStringLenFunc)(gunichar* str, guint32 len);
2423 typedef guint32 (STDCALL *SysStringLenFunc)(gpointer bstr);
2424 typedef void (STDCALL *SysFreeStringFunc)(gunichar* str);
2426 static SysAllocStringLenFunc sys_alloc_string_len_ms = NULL;
2427 static SysStringLenFunc sys_string_len_ms = NULL;
2428 static SysFreeStringFunc sys_free_string_ms = NULL;
2430 typedef guint32 (STDCALL *SafeArrayGetDimFunc)(gpointer psa);
2431 typedef int (STDCALL *SafeArrayGetLBoundFunc)(gpointer psa, guint32 nDim, glong* plLbound);
2432 typedef int (STDCALL *SafeArrayGetUBoundFunc)(gpointer psa, guint32 nDim, glong* plUbound);
2433 typedef int (STDCALL *SafeArrayPtrOfIndexFunc)(gpointer psa, glong* rgIndices, gpointer* ppvData);
2434 typedef int (STDCALL *SafeArrayDestroyFunc)(gpointer psa);
2436 static SafeArrayGetDimFunc safe_array_get_dim_ms = NULL;
2437 static SafeArrayGetLBoundFunc safe_array_get_lbound_ms = NULL;
2438 static SafeArrayGetUBoundFunc safe_array_get_ubound_ms = NULL;
2439 static SafeArrayPtrOfIndexFunc safe_array_ptr_of_index_ms = NULL;
2440 static SafeArrayDestroyFunc safe_array_destroy_ms = NULL;
2443 init_com_provider_ms (void)
2445 static gboolean initialized = FALSE;
2447 MonoDl *module = NULL;
2448 const char* scope = "liboleaut32.so";
2453 module = mono_dl_open(scope, MONO_DL_LAZY, &error_msg);
2455 g_warning ("Error loading COM support library '%s': %s", scope, error_msg);
2456 g_assert_not_reached ();
2459 error_msg = mono_dl_symbol (module, "SysAllocStringLen", (gpointer*)&sys_alloc_string_len_ms);
2461 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysAllocStringLen", scope, error_msg);
2462 g_assert_not_reached ();
2466 error_msg = mono_dl_symbol (module, "SysStringLen", (gpointer*)&sys_string_len_ms);
2468 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysStringLen", scope, error_msg);
2469 g_assert_not_reached ();
2473 error_msg = mono_dl_symbol (module, "SysFreeString", (gpointer*)&sys_free_string_ms);
2475 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysFreeString", scope, error_msg);
2476 g_assert_not_reached ();
2480 error_msg = mono_dl_symbol (module, "SafeArrayGetDim", (gpointer*)&safe_array_get_dim_ms);
2482 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SafeArrayGetDim", scope, error_msg);
2483 g_assert_not_reached ();
2487 error_msg = mono_dl_symbol (module, "SafeArrayGetLBound", (gpointer*)&safe_array_get_lbound_ms);
2489 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SafeArrayGetLBound", scope, error_msg);
2490 g_assert_not_reached ();
2494 error_msg = mono_dl_symbol (module, "SafeArrayGetUBound", (gpointer*)&safe_array_get_ubound_ms);
2496 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SafeArrayGetUBound", scope, error_msg);
2497 g_assert_not_reached ();
2501 error_msg = mono_dl_symbol (module, "SafeArrayPtrOfIndex", (gpointer*)&safe_array_ptr_of_index_ms);
2503 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SafeArrayPtrOfIndex", scope, error_msg);
2504 g_assert_not_reached ();
2508 error_msg = mono_dl_symbol (module, "SafeArrayDestroy", (gpointer*)&safe_array_destroy_ms);
2510 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SafeArrayDestroy", scope, error_msg);
2511 g_assert_not_reached ();
2520 mono_string_to_bstr (MonoString *string_obj)
2525 return SysAllocStringLen (mono_string_chars (string_obj), mono_string_length (string_obj));
2527 if (com_provider == MONO_COM_DEFAULT) {
2528 int slen = mono_string_length (string_obj);
2529 /* allocate len + 1 utf16 characters plus 4 byte integer for length*/
2530 char *ret = g_malloc ((slen + 1) * sizeof(gunichar2) + sizeof(guint32));
2533 memcpy (ret + sizeof(guint32), mono_string_chars (string_obj), slen * sizeof(gunichar2));
2534 * ((guint32 *) ret) = slen * sizeof(gunichar2);
2535 ret [4 + slen * sizeof(gunichar2)] = 0;
2536 ret [5 + slen * sizeof(gunichar2)] = 0;
2539 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2540 gpointer ret = NULL;
2541 gunichar* str = NULL;
2543 len = mono_string_length (string_obj);
2544 str = g_utf16_to_ucs4 (mono_string_chars (string_obj), len,
2546 ret = sys_alloc_string_len_ms (str, len);
2550 g_assert_not_reached ();
2556 mono_string_from_bstr (gpointer bstr)
2561 return mono_string_new_utf16 (mono_domain_get (), bstr, SysStringLen (bstr));
2563 if (com_provider == MONO_COM_DEFAULT) {
2564 return mono_string_new_utf16 (mono_domain_get (), bstr, *((guint32 *)bstr - 1) / sizeof(gunichar2));
2565 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2566 MonoString* str = NULL;
2568 gunichar2* utf16 = NULL;
2570 utf16 = g_ucs4_to_utf16 (bstr, sys_string_len_ms (bstr), NULL, &written, NULL);
2571 str = mono_string_new_utf16 (mono_domain_get (), utf16, written);
2575 g_assert_not_reached ();
2582 mono_free_bstr (gpointer bstr)
2587 SysFreeString ((BSTR)bstr);
2589 if (com_provider == MONO_COM_DEFAULT) {
2590 g_free (((char *)bstr) - 4);
2591 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2592 sys_free_string_ms (bstr);
2594 g_assert_not_reached ();
2601 /* SAFEARRAY marshalling */
2603 mono_cominterop_emit_marshal_safearray (EmitMarshalContext *m, int argnum, MonoType *t,
2604 MonoMarshalSpec *spec,
2605 int conv_arg, MonoType **conv_arg_type,
2606 MarshalAction action)
2608 MonoMethodBuilder *mb = m->mb;
2610 mono_init_com_types ();
2614 case MARSHAL_ACTION_CONV_OUT: {
2616 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
2618 /* Generates IL code for the following algorithm:
2620 Array result; // result_var
2621 IntPtr indices; // indices_var
2622 int empty; // empty_var
2623 if (mono_marshal_safearray_begin(safearray, out result, out indices, out empty)) {
2625 int index=0; // index_var
2627 object elem = Variant.GetObjectForNativeVariant(mono_marshal_safearray_get_value(safearray, indices));
2628 result.SetValueImpl(elem, index);
2631 while (mono_marshal_safearray_next(safearray, indices));
2633 mono_marshal_safearray_end(safearray, indices);
2637 int result_var, indices_var, empty_var, elem_var, index_var;
2638 guint32 label1 = 0, label2 = 0, label3 = 0;
2639 static MonoMethod *get_object_for_native_variant = NULL;
2640 static MonoMethod *set_value_impl = NULL;
2642 result_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2643 indices_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2644 empty_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2646 mono_mb_emit_ldloc (mb, conv_arg);
2647 mono_mb_emit_ldloc_addr (mb, result_var);
2648 mono_mb_emit_ldloc_addr (mb, indices_var);
2649 mono_mb_emit_ldloc_addr (mb, empty_var);
2650 mono_mb_emit_icall (mb, mono_marshal_safearray_begin);
2652 label1 = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2654 mono_mb_emit_ldloc (mb, empty_var);
2656 label2 = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
2658 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2659 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2660 mono_mb_emit_stloc (mb, index_var);
2662 label3 = mono_mb_get_label (mb);
2664 mono_mb_emit_ldloc (mb, conv_arg);
2665 mono_mb_emit_ldloc (mb, indices_var);
2666 mono_mb_emit_icall (mb, mono_marshal_safearray_get_value);
2668 if (!get_object_for_native_variant)
2669 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2670 g_assert (get_object_for_native_variant);
2672 if (!set_value_impl)
2673 set_value_impl = mono_class_get_method_from_name (mono_defaults.array_class, "SetValueImpl", 2);
2674 g_assert (set_value_impl);
2676 elem_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2678 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2679 mono_mb_emit_stloc (mb, elem_var);
2681 mono_mb_emit_ldloc (mb, result_var);
2682 mono_mb_emit_ldloc (mb, elem_var);
2683 mono_mb_emit_ldloc (mb, index_var);
2684 mono_mb_emit_managed_call (mb, set_value_impl, NULL);
2686 mono_mb_emit_add_to_local (mb, index_var, 1);
2688 mono_mb_emit_ldloc (mb, conv_arg);
2689 mono_mb_emit_ldloc (mb, indices_var);
2690 mono_mb_emit_icall (mb, mono_marshal_safearray_next);
2691 mono_mb_emit_branch_label (mb, CEE_BRTRUE, label3);
2693 mono_mb_patch_short_branch (mb, label2);
2695 mono_mb_emit_ldloc (mb, conv_arg);
2696 mono_mb_emit_ldloc (mb, indices_var);
2697 mono_mb_emit_icall (mb, mono_marshal_safearray_end);
2699 mono_mb_patch_short_branch (mb, label1);
2701 mono_mb_emit_ldarg (mb, argnum);
2702 mono_mb_emit_ldloc (mb, result_var);
2703 mono_mb_emit_byte (mb, CEE_STIND_REF);
2709 g_assert_not_reached ();
2716 guint32 mono_marshal_safearray_get_dim (gpointer safearray)
2720 result = SafeArrayGetDim (safearray);
2722 if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2723 result = safe_array_get_dim_ms (safearray);
2725 g_assert_not_reached ();
2732 int mono_marshal_safe_array_get_lbound (gpointer psa, guint nDim, glong* plLbound)
2734 int result=MONO_S_OK;
2736 result = SafeArrayGetLBound (psa, nDim, plLbound);
2738 if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2739 result = safe_array_get_lbound_ms (psa, nDim, plLbound);
2741 g_assert_not_reached ();
2748 int mono_marshal_safe_array_get_ubound (gpointer psa, guint nDim, glong* plUbound)
2750 int result=MONO_S_OK;
2752 result = SafeArrayGetUBound (psa, nDim, plUbound);
2754 if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2755 result = safe_array_get_ubound_ms (psa, nDim, plUbound);
2757 g_assert_not_reached ();
2764 mono_marshal_safearray_begin (gpointer safearray, MonoArray **result, gpointer *indices, gpointer empty)
2767 mono_array_size_t *sizes;
2768 mono_array_size_t *bounds;
2771 gboolean bounded = FALSE;
2774 // If not on windows, check that the MS provider is used as it is
2775 // required for SAFEARRAY support.
2776 // If SAFEARRAYs are not supported, returning FALSE from this
2777 // function will prevent the other mono_marshal_safearray_xxx functions
2778 // from being called.
2779 if ((com_provider != MONO_COM_MS) || !init_com_provider_ms ()) {
2784 dim = mono_marshal_safearray_get_dim (safearray);
2786 *indices = g_malloc (dim * sizeof(int));
2788 sizes = alloca (dim * sizeof(mono_array_size_t));
2789 bounds = alloca (dim * sizeof(mono_array_size_t));
2791 (*(int*)empty) = TRUE;
2792 for (i=0; i<dim; ++i) {
2793 glong lbound, ubound;
2797 hr = mono_marshal_safe_array_get_lbound (safearray, i+1, &lbound);
2799 cominterop_raise_hr_exception (hr);
2803 hr = mono_marshal_safe_array_get_ubound (safearray, i+1, &ubound);
2805 cominterop_raise_hr_exception (hr);
2807 cursize = ubound-lbound+1;
2808 sizes [i] = cursize;
2809 bounds [i] = lbound;
2811 ((int*)*indices) [i] = lbound;
2814 (*(int*)empty) = FALSE;
2817 aklass = mono_bounded_array_class_get (mono_defaults.object_class, dim, bounded);
2818 *result = mono_array_new_full (mono_domain_get (), aklass, sizes, bounds);
2824 gpointer mono_marshal_safearray_get_value (gpointer safearray, gpointer indices)
2828 int hr = SafeArrayPtrOfIndex (safearray, indices, &result);
2830 cominterop_raise_hr_exception (hr);
2833 if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2834 int hr = safe_array_ptr_of_index_ms (safearray, indices, &result);
2836 cominterop_raise_hr_exception (hr);
2839 g_assert_not_reached ();
2846 gboolean mono_marshal_safearray_next (gpointer safearray, gpointer indices)
2849 int dim = mono_marshal_safearray_get_dim (safearray);
2851 int *pIndices = (int*) indices;
2854 for (i=dim-1; i>=0; --i)
2856 glong lbound, ubound;
2858 hr = mono_marshal_safe_array_get_ubound (safearray, i+1, &ubound);
2860 cominterop_raise_hr_exception (hr);
2863 if (++pIndices[i] <= ubound) {
2867 hr = mono_marshal_safe_array_get_lbound (safearray, i+1, &lbound);
2869 cominterop_raise_hr_exception (hr);
2872 pIndices[i] = lbound;
2881 void mono_marshal_safearray_end (gpointer safearray, gpointer indices)
2885 SafeArrayDestroy (safearray);
2887 if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2888 safe_array_destroy_ms (safearray);
2890 g_assert_not_reached ();
2895 #else /* DISABLE_COM */
2898 mono_cominterop_init (void)
2903 mono_cominterop_cleanup (void)
2908 cominterop_release_all_rcws (void)
2913 mono_marshal_free_ccw (MonoObject* object)
2919 mono_string_to_bstr (MonoString *string_obj)
2921 g_assert_not_reached ();
2926 mono_string_from_bstr (gpointer bstr)
2928 g_assert_not_reached ();
2933 mono_free_bstr (gpointer bstr)
2935 g_assert_not_reached ();
2938 #endif /* DISABLE_COM */