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);
860 sig = mono_method_signature (method);
861 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
863 /* if method klass is import, that means method
864 * is really a com call. let interop system emit it.
866 if (MONO_CLASS_IS_IMPORT(method->klass)) {
867 /* FIXME: we have to call actual class .ctor
868 * instead of just __ComObject .ctor.
870 if (!strcmp(method->name, ".ctor")) {
871 static MonoMethod *ctor = NULL;
874 ctor = mono_class_get_method_from_name (mono_defaults.com_object_class, ".ctor", 0);
875 mono_mb_emit_ldarg (mb, 0);
876 mono_mb_emit_managed_call (mb, ctor, NULL);
877 mono_mb_emit_byte (mb, CEE_RET);
880 static MonoMethod * ThrowExceptionForHR = NULL;
881 MonoMethod *adjusted_method;
885 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
887 // add local variables
888 ptr_this = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
889 if (!MONO_TYPE_IS_VOID (sig->ret))
890 retval = mono_mb_add_local (mb, sig->ret);
892 // get the type for the interface the method is defined on
893 // and then get the underlying COM interface for that type
894 mono_mb_emit_ldarg (mb, 0);
895 mono_mb_emit_ptr (mb, method);
896 mono_mb_emit_icall (mb, cominterop_get_method_interface);
897 mono_mb_emit_icon (mb, TRUE);
898 mono_mb_emit_icall (mb, cominterop_get_interface);
899 mono_mb_emit_stloc (mb, ptr_this);
901 // arg 1 is unmanaged this pointer
902 mono_mb_emit_ldloc (mb, ptr_this);
905 for (i = 1; i <= sig->param_count; i++)
906 mono_mb_emit_ldarg (mb, i);
908 // push managed return value as byref last argument
909 if (!MONO_TYPE_IS_VOID (sig->ret) && !preserve_sig)
910 mono_mb_emit_ldloc_addr (mb, retval);
912 adjusted_method = cominterop_get_native_wrapper_adjusted (method);
913 mono_mb_emit_managed_call (mb, adjusted_method, NULL);
916 if (!ThrowExceptionForHR)
917 ThrowExceptionForHR = mono_class_get_method_from_name (mono_defaults.marshal_class, "ThrowExceptionForHR", 1);
918 mono_mb_emit_managed_call (mb, ThrowExceptionForHR, NULL);
920 // load return value managed is expecting
921 if (!MONO_TYPE_IS_VOID (sig->ret))
922 mono_mb_emit_ldloc (mb, retval);
925 mono_mb_emit_byte (mb, CEE_RET);
930 /* Does this case ever get hit? */
932 char *msg = g_strdup ("non imported interfaces on \
933 imported classes is not yet implemented.");
934 mono_mb_emit_exception (mb, "NotSupportedException", msg);
936 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
938 res = mono_mb_create_and_cache (cache, method,
939 mb, csig, csig->param_count + 16);
945 * mono_cominterop_get_invoke:
946 * @method: managed method
948 * Returns: the generated method that calls the underlying __ComObject
949 * rather than the proxy object.
952 mono_cominterop_get_invoke (MonoMethod *method)
954 MonoMethodSignature *sig;
955 MonoMethodBuilder *mb;
958 GHashTable* cache = mono_marshal_get_cache (&method->klass->image->cominterop_invoke_cache, mono_aligned_addr_hash, NULL);
962 if ((res = mono_marshal_find_in_cache (cache, method)))
965 sig = mono_signature_no_pinvoke (method);
967 /* we cant remote methods without this pointer */
971 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP_INVOKE);
973 /* get real proxy object, which is a ComInteropProxy in this case*/
974 temp_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
975 mono_mb_emit_ldarg (mb, 0);
976 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
977 mono_mb_emit_byte (mb, CEE_LDIND_REF);
979 /* load the RCW from the ComInteropProxy*/
980 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
981 mono_mb_emit_byte (mb, CEE_LDIND_REF);
983 /* load args and make the call on the RCW */
984 for (i = 1; i <= sig->param_count; i++)
985 mono_mb_emit_ldarg (mb, i);
987 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
988 MonoMethod * native_wrapper = mono_cominterop_get_native_wrapper(method);
989 mono_mb_emit_managed_call (mb, native_wrapper, NULL);
992 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
993 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
995 mono_mb_emit_op (mb, CEE_CALL, method);
998 if (!strcmp(method->name, ".ctor")) {
999 static MonoClass *com_interop_proxy_class = NULL;
1000 static MonoMethod *cache_proxy = NULL;
1002 if (!com_interop_proxy_class)
1003 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
1005 cache_proxy = mono_class_get_method_from_name (com_interop_proxy_class, "CacheProxy", 0);
1007 mono_mb_emit_ldarg (mb, 0);
1008 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
1009 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1010 mono_mb_emit_managed_call (mb, cache_proxy, NULL);
1013 mono_marshal_emit_thread_interrupt_checkpoint (mb);
1015 mono_mb_emit_byte (mb, CEE_RET);
1017 res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
1023 /* Maps a managed object to its unmanaged representation
1024 * i.e. it's COM Callable Wrapper (CCW).
1028 static GHashTable* ccw_hash = NULL;
1030 /* Maps a CCW interface to it's containing CCW.
1031 * Note that a CCW support many interfaces.
1033 * Value: MonoCCWInterface*
1035 static GHashTable* ccw_interface_hash = NULL;
1037 /* Maps the IUnknown value of a RCW to
1038 * it's MonoComInteropProxy*.
1042 static GHashTable* rcw_hash = NULL;
1045 mono_cominterop_emit_marshal_com_interface (EmitMarshalContext *m, int argnum,
1047 MonoMarshalSpec *spec,
1048 int conv_arg, MonoType **conv_arg_type,
1049 MarshalAction action)
1051 MonoMethodBuilder *mb = m->mb;
1052 MonoClass *klass = t->data.klass;
1053 static MonoMethod* get_object_for_iunknown = NULL;
1054 static MonoMethod* get_iunknown_for_object_internal = NULL;
1055 static MonoMethod* get_com_interface_for_object_internal = NULL;
1056 static MonoMethod* get_idispatch_for_object_internal = NULL;
1057 static MonoMethod* marshal_release = NULL;
1058 static MonoMethod* AddRef = NULL;
1059 if (!get_object_for_iunknown)
1060 get_object_for_iunknown = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForIUnknown", 1);
1061 if (!get_iunknown_for_object_internal)
1062 get_iunknown_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIUnknownForObjectInternal", 1);
1063 if (!get_idispatch_for_object_internal)
1064 get_idispatch_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIDispatchForObjectInternal", 1);
1065 if (!get_com_interface_for_object_internal)
1066 get_com_interface_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetComInterfaceForObjectInternal", 2);
1067 if (!marshal_release)
1068 marshal_release = mono_class_get_method_from_name (mono_defaults.marshal_class, "Release", 1);
1070 /* COM types are initialized lazily */
1071 mono_init_com_types ();
1074 case MARSHAL_ACTION_CONV_IN: {
1075 guint32 pos_null = 0;
1077 *conv_arg_type = &mono_defaults.int_class->byval_arg;
1078 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1080 mono_mb_emit_ptr (mb, NULL);
1081 mono_mb_emit_stloc (mb, conv_arg);
1083 /* we dont need any conversions for out parameters */
1084 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
1087 mono_mb_emit_ldarg (mb, argnum);
1089 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1090 /* if null just break, conv arg was already inited to 0 */
1091 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1093 mono_mb_emit_ldarg (mb, argnum);
1095 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1097 if (klass && klass != mono_defaults.object_class) {
1098 mono_mb_emit_ptr (mb, t);
1099 mono_mb_emit_icall (mb, cominterop_type_from_handle);
1100 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
1102 else if (spec->native == MONO_NATIVE_IUNKNOWN)
1103 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
1104 else if (spec->native == MONO_NATIVE_IDISPATCH)
1105 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
1106 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
1107 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
1109 g_assert_not_reached ();
1110 mono_mb_emit_stloc (mb, conv_arg);
1111 mono_mb_patch_short_branch (mb, pos_null);
1115 case MARSHAL_ACTION_CONV_OUT: {
1116 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
1118 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
1119 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1121 mono_mb_emit_ldarg (mb, argnum);
1122 mono_mb_emit_byte (mb, CEE_LDNULL);
1123 mono_mb_emit_byte (mb, CEE_STIND_REF);
1125 mono_mb_emit_ldloc (mb, conv_arg);
1126 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1128 mono_mb_emit_ldloc (mb, conv_arg);
1129 mono_mb_emit_icon (mb, TRUE);
1130 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1131 mono_mb_emit_stloc (mb, ccw_obj);
1132 mono_mb_emit_ldloc (mb, ccw_obj);
1133 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
1135 mono_mb_emit_ldarg (mb, argnum);
1136 mono_mb_emit_ldloc (mb, conv_arg);
1137 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
1139 if (klass && klass != mono_defaults.object_class)
1140 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1141 mono_mb_emit_byte (mb, CEE_STIND_REF);
1143 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
1145 /* is already managed object */
1146 mono_mb_patch_short_branch (mb, pos_ccw);
1147 mono_mb_emit_ldarg (mb, argnum);
1148 mono_mb_emit_ldloc (mb, ccw_obj);
1150 if (klass && klass != mono_defaults.object_class)
1151 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1152 mono_mb_emit_byte (mb, CEE_STIND_REF);
1154 mono_mb_patch_short_branch (mb, pos_end);
1156 /* need to call Release to follow COM rules of ownership */
1157 mono_mb_emit_ldloc (mb, conv_arg);
1158 mono_mb_emit_managed_call (mb, marshal_release, NULL);
1159 mono_mb_emit_byte (mb, CEE_POP);
1162 mono_mb_patch_short_branch (mb, pos_null);
1166 case MARSHAL_ACTION_PUSH:
1168 mono_mb_emit_ldloc_addr (mb, conv_arg);
1170 mono_mb_emit_ldloc (mb, conv_arg);
1173 case MARSHAL_ACTION_CONV_RESULT: {
1174 int ccw_obj, ret_ptr;
1175 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
1176 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1177 ret_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1179 /* store return value */
1180 mono_mb_emit_stloc (mb, ret_ptr);
1182 mono_mb_emit_ldloc (mb, ret_ptr);
1183 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1185 mono_mb_emit_ldloc (mb, ret_ptr);
1186 mono_mb_emit_icon (mb, TRUE);
1187 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1188 mono_mb_emit_stloc (mb, ccw_obj);
1189 mono_mb_emit_ldloc (mb, ccw_obj);
1190 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
1192 mono_mb_emit_ldloc (mb, ret_ptr);
1193 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
1195 if (klass && klass != mono_defaults.object_class)
1196 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1197 mono_mb_emit_stloc (mb, 3);
1199 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
1201 /* is already managed object */
1202 mono_mb_patch_short_branch (mb, pos_ccw);
1203 mono_mb_emit_ldloc (mb, ccw_obj);
1205 if (klass && klass != mono_defaults.object_class)
1206 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1207 mono_mb_emit_stloc (mb, 3);
1209 mono_mb_patch_short_branch (mb, pos_end);
1211 /* need to call Release to follow COM rules of ownership */
1212 mono_mb_emit_ldloc (mb, ret_ptr);
1213 mono_mb_emit_managed_call (mb, marshal_release, NULL);
1214 mono_mb_emit_byte (mb, CEE_POP);
1217 mono_mb_patch_short_branch (mb, pos_null);
1221 case MARSHAL_ACTION_MANAGED_CONV_IN: {
1223 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
1224 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1226 klass = mono_class_from_mono_type (t);
1227 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
1228 *conv_arg_type = &mono_defaults.int_class->byval_arg;
1230 mono_mb_emit_byte (mb, CEE_LDNULL);
1231 mono_mb_emit_stloc (mb, conv_arg);
1232 if (t->attrs & PARAM_ATTRIBUTE_OUT)
1235 mono_mb_emit_ldarg (mb, argnum);
1237 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1238 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1240 mono_mb_emit_ldarg (mb, argnum);
1242 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1243 mono_mb_emit_icon (mb, TRUE);
1244 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1245 mono_mb_emit_stloc (mb, ccw_obj);
1246 mono_mb_emit_ldloc (mb, ccw_obj);
1247 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
1250 mono_mb_emit_ldarg (mb, argnum);
1252 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1253 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
1255 if (klass && klass != mono_defaults.object_class)
1256 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1257 mono_mb_emit_stloc (mb, conv_arg);
1258 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
1260 /* is already managed object */
1261 mono_mb_patch_short_branch (mb, pos_ccw);
1262 mono_mb_emit_ldloc (mb, ccw_obj);
1263 if (klass && klass != mono_defaults.object_class)
1264 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1265 mono_mb_emit_stloc (mb, conv_arg);
1267 mono_mb_patch_short_branch (mb, pos_end);
1269 mono_mb_patch_short_branch (mb, pos_null);
1273 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
1274 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT) {
1275 guint32 pos_null = 0;
1278 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
1280 mono_mb_emit_ldarg (mb, argnum);
1281 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1282 mono_mb_emit_byte (mb, CEE_STIND_I);
1284 mono_mb_emit_ldloc (mb, conv_arg);
1285 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1287 /* to store later */
1288 mono_mb_emit_ldarg (mb, argnum);
1289 mono_mb_emit_ldloc (mb, conv_arg);
1290 if (klass && klass != mono_defaults.object_class) {
1291 mono_mb_emit_ptr (mb, t);
1292 mono_mb_emit_icall (mb, cominterop_type_from_handle);
1293 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
1295 else if (spec->native == MONO_NATIVE_IUNKNOWN)
1296 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
1297 else if (spec->native == MONO_NATIVE_IDISPATCH)
1298 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
1299 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
1300 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
1302 g_assert_not_reached ();
1303 mono_mb_emit_byte (mb, CEE_STIND_I);
1305 mono_mb_emit_ldarg (mb, argnum);
1306 mono_mb_emit_byte (mb, CEE_LDIND_I);
1307 mono_mb_emit_managed_call (mb, AddRef, NULL);
1308 mono_mb_emit_byte (mb, CEE_POP);
1310 mono_mb_patch_short_branch (mb, pos_null);
1315 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
1316 guint32 pos_null = 0;
1318 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1321 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
1323 /* store return value */
1324 mono_mb_emit_stloc (mb, ccw_obj);
1326 mono_mb_emit_ldloc (mb, ccw_obj);
1328 /* if null just break, conv arg was already inited to 0 */
1329 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1331 /* to store later */
1332 mono_mb_emit_ldloc (mb, ccw_obj);
1333 if (klass && klass != mono_defaults.object_class) {
1334 mono_mb_emit_ptr (mb, t);
1335 mono_mb_emit_icall (mb, cominterop_type_from_handle);
1336 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
1338 else if (spec->native == MONO_NATIVE_IUNKNOWN)
1339 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
1340 else if (spec->native == MONO_NATIVE_IDISPATCH)
1341 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
1342 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
1343 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
1345 g_assert_not_reached ();
1346 mono_mb_emit_stloc (mb, 3);
1347 mono_mb_emit_ldloc (mb, 3);
1349 mono_mb_emit_managed_call (mb, AddRef, NULL);
1350 mono_mb_emit_byte (mb, CEE_POP);
1352 mono_mb_patch_short_branch (mb, pos_null);
1357 g_assert_not_reached ();
1365 int (STDCALL *QueryInterface)(gpointer pUnk, gpointer riid, gpointer* ppv);
1366 int (STDCALL *AddRef)(gpointer pUnk);
1367 int (STDCALL *Release)(gpointer pUnk);
1370 #define MONO_S_OK 0x00000000L
1371 #define MONO_E_NOINTERFACE 0x80004002L
1372 #define MONO_E_NOTIMPL 0x80004001L
1375 ves_icall_System_Runtime_InteropServices_Marshal_AddRefInternal (gpointer pUnk)
1378 return (*(MonoIUnknown**)pUnk)->AddRef(pUnk);
1382 ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (gpointer pUnk, gpointer riid, gpointer* ppv)
1385 return (*(MonoIUnknown**)pUnk)->QueryInterface(pUnk, riid, ppv);
1389 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (gpointer pUnk)
1392 return (*(MonoIUnknown**)pUnk)->Release(pUnk);
1395 static gboolean cominterop_can_support_dispatch (MonoClass* klass)
1397 if (!(klass->flags & TYPE_ATTRIBUTE_PUBLIC) )
1400 if (!cominterop_com_visible (klass))
1407 cominterop_get_idispatch_for_object (MonoObject* object)
1412 if (cominterop_object_is_rcw (object)) {
1413 return cominterop_get_interface (((MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp)->com_object,
1414 mono_defaults.idispatch_class, TRUE);
1417 MonoClass* klass = mono_object_class (object);
1418 if (!cominterop_can_support_dispatch (klass) )
1419 cominterop_raise_hr_exception (MONO_E_NOINTERFACE);
1420 return cominterop_get_ccw (object, mono_defaults.idispatch_class);
1425 ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal (MonoObject* object)
1431 mono_init_com_types ();
1433 if (cominterop_object_is_rcw (object)) {
1434 MonoClass *klass = NULL;
1435 MonoRealProxy* real_proxy = NULL;
1438 klass = mono_object_class (object);
1439 if (klass != mono_defaults.transparent_proxy_class) {
1440 g_assert_not_reached ();
1444 real_proxy = ((MonoTransparentProxy*)object)->rp;
1446 g_assert_not_reached ();
1450 klass = mono_object_class (real_proxy);
1451 if (klass != mono_defaults.com_interop_proxy_class) {
1452 g_assert_not_reached ();
1456 if (!((MonoComInteropProxy*)real_proxy)->com_object) {
1457 g_assert_not_reached ();
1461 return ((MonoComInteropProxy*)real_proxy)->com_object->iunknown;
1464 return cominterop_get_ccw (object, mono_defaults.iunknown_class);
1467 g_assert_not_reached ();
1472 ves_icall_System_Runtime_InteropServices_Marshal_GetObjectForCCW (void* pUnk)
1475 MonoObject* object = NULL;
1480 /* see if it is a CCW */
1481 object = cominterop_get_ccw_object ((MonoCCWInterface*)pUnk, TRUE);
1485 g_assert_not_reached ();
1490 ves_icall_System_Runtime_InteropServices_Marshal_GetIDispatchForObjectInternal (MonoObject* object)
1493 mono_init_com_types ();
1495 return cominterop_get_idispatch_for_object (object);
1497 g_assert_not_reached ();
1502 ves_icall_System_Runtime_InteropServices_Marshal_GetCCW (MonoObject* object, MonoReflectionType* type)
1505 MonoClass* klass = NULL;
1508 g_assert (type->type);
1509 klass = mono_type_get_class (type->type);
1511 itf = cominterop_get_ccw (object, klass);
1515 g_assert_not_reached ();
1521 ves_icall_System_Runtime_InteropServices_Marshal_IsComObject (MonoObject* object)
1524 return (MonoBoolean)cominterop_object_is_rcw (object);
1526 g_assert_not_reached ();
1531 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseComObjectInternal (MonoObject* object)
1534 MonoComInteropProxy* proxy = NULL;
1535 gint32 ref_count = 0;
1538 g_assert (cominterop_object_is_rcw (object));
1540 proxy = (MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp;
1543 if (proxy->ref_count == 0)
1546 ref_count = InterlockedDecrement (&proxy->ref_count);
1548 g_assert (ref_count >= 0);
1551 ves_icall_System_ComObject_ReleaseInterfaces (proxy->com_object);
1555 g_assert_not_reached ();
1560 ves_icall_System_Runtime_InteropServices_Marshal_GetComSlotForMethodInfoInternal (MonoReflectionMethod *m)
1562 MONO_ARCH_SAVE_REGS;
1565 return cominterop_get_com_slot_for_method (m->method);
1567 g_assert_not_reached ();
1571 /* Only used for COM RCWs */
1573 ves_icall_System_ComObject_CreateRCW (MonoReflectionType *type)
1579 MONO_ARCH_SAVE_REGS;
1581 domain = mono_object_domain (type);
1582 klass = mono_class_from_mono_type (type->type);
1584 /* call mono_object_new_alloc_specific instead of mono_object_new
1585 * because we want to actually create object. mono_object_new checks
1586 * to see if type is import and creates transparent proxy. this method
1587 * is called by the corresponding real proxy to create the real RCW.
1588 * Constructor does not need to be called. Will be called later.
1590 obj = mono_object_new_alloc_specific (mono_class_vtable_full (domain, klass, TRUE));
1595 cominterop_rcw_interface_finalizer (gpointer key, gpointer value, gpointer user_data)
1597 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (value);
1602 ves_icall_System_ComObject_ReleaseInterfaces (MonoComObject* obj)
1605 if (obj->itf_hash) {
1606 guint32 gchandle = 0;
1607 mono_cominterop_lock ();
1608 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, obj->iunknown));
1610 mono_gchandle_free (gchandle);
1611 g_hash_table_remove (rcw_hash, obj->iunknown);
1614 g_hash_table_foreach_remove (obj->itf_hash, cominterop_rcw_interface_finalizer, NULL);
1615 g_hash_table_destroy (obj->itf_hash);
1616 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (obj->iunknown);
1617 obj->itf_hash = obj->iunknown = NULL;
1618 mono_cominterop_unlock ();
1623 cominterop_rcw_finalizer (gpointer key, gpointer value, gpointer user_data)
1625 guint32 gchandle = 0;
1627 gchandle = GPOINTER_TO_UINT (value);
1629 MonoComInteropProxy* proxy = (MonoComInteropProxy*)mono_gchandle_get_target (gchandle);
1632 if (proxy->com_object->itf_hash) {
1633 g_hash_table_foreach_remove (proxy->com_object->itf_hash, cominterop_rcw_interface_finalizer, NULL);
1634 g_hash_table_destroy (proxy->com_object->itf_hash);
1636 if (proxy->com_object->iunknown)
1637 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (proxy->com_object->iunknown);
1638 proxy->com_object->itf_hash = proxy->com_object->iunknown = NULL;
1641 mono_gchandle_free (gchandle);
1648 cominterop_release_all_rcws (void)
1653 mono_cominterop_lock ();
1655 g_hash_table_foreach_remove (rcw_hash, cominterop_rcw_finalizer, NULL);
1656 g_hash_table_destroy (rcw_hash);
1659 mono_cominterop_unlock ();
1663 ves_icall_System_ComObject_GetInterfaceInternal (MonoComObject* obj, MonoReflectionType* type, MonoBoolean throw_exception)
1666 return cominterop_get_interface (obj, mono_type_get_class (type->type), (gboolean)throw_exception);
1668 g_assert_not_reached ();
1673 ves_icall_Mono_Interop_ComInteropProxy_AddProxy (gpointer pUnk, MonoComInteropProxy* proxy)
1676 guint32 gchandle = 0;
1678 mono_cominterop_lock ();
1679 rcw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
1680 mono_cominterop_unlock ();
1683 gchandle = mono_gchandle_new_weakref ((MonoObject*)proxy, FALSE);
1685 mono_cominterop_lock ();
1686 g_hash_table_insert (rcw_hash, pUnk, GUINT_TO_POINTER (gchandle));
1687 mono_cominterop_unlock ();
1689 g_assert_not_reached ();
1693 MonoComInteropProxy*
1694 ves_icall_Mono_Interop_ComInteropProxy_FindProxy (gpointer pUnk)
1697 MonoComInteropProxy* proxy = NULL;
1698 guint32 gchandle = 0;
1700 mono_cominterop_lock ();
1702 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, pUnk));
1703 mono_cominterop_unlock ();
1705 proxy = (MonoComInteropProxy*)mono_gchandle_get_target (gchandle);
1706 /* proxy is null means we need to free up old RCW */
1708 mono_gchandle_free (gchandle);
1709 g_hash_table_remove (rcw_hash, pUnk);
1714 g_assert_not_reached ();
1719 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
1721 MONO_ARCH_SAVE_REGS;
1723 return mono_string_from_bstr(ptr);
1727 ves_icall_System_Runtime_InteropServices_Marshal_StringToBSTR (MonoString* ptr)
1729 MONO_ARCH_SAVE_REGS;
1731 return mono_string_to_bstr(ptr);
1735 ves_icall_System_Runtime_InteropServices_Marshal_FreeBSTR (gpointer ptr)
1737 MONO_ARCH_SAVE_REGS;
1739 mono_free_bstr (ptr);
1743 * cominterop_get_ccw_object:
1744 * @ccw_entry: a pointer to the CCWEntry
1745 * @verify: verify ccw_entry is in fact a ccw
1747 * Returns: the corresponding object for the CCW
1750 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify)
1752 MonoCCW *ccw = NULL;
1754 /* no CCW's exist yet */
1755 if (!ccw_interface_hash)
1759 ccw = g_hash_table_lookup (ccw_interface_hash, ccw_entry);
1762 ccw = ccw_entry->ccw;
1766 return mono_gchandle_get_target (ccw->gc_handle);
1772 cominterop_setup_marshal_context (EmitMarshalContext *m, MonoMethod *method)
1774 MonoMethodSignature *sig, *csig;
1775 sig = mono_method_signature (method);
1776 /* we copy the signature, so that we can modify it */
1777 /* FIXME: which to use? */
1778 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
1779 /* csig = mono_metadata_signature_dup (sig); */
1781 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
1783 csig->call_convention = MONO_CALL_STDCALL;
1785 csig->call_convention = MONO_CALL_C;
1790 m->image = method->klass->image;
1798 * cominterop_get_ccw:
1799 * @object: a pointer to the object
1800 * @itf: interface type needed
1802 * Returns: a value indicating if the object is a
1803 * Runtime Callable Wrapper (RCW) for a COM object
1806 cominterop_get_ccw (MonoObject* object, MonoClass* itf)
1809 MonoCCW *ccw = NULL;
1810 MonoCCWInterface* ccw_entry = NULL;
1811 gpointer *vtable = NULL;
1812 static gpointer iunknown[3] = {NULL, NULL, NULL};
1813 static gpointer idispatch[4] = {NULL, NULL, NULL, NULL};
1814 MonoClass* iface = NULL;
1815 MonoClass* klass = NULL;
1816 EmitMarshalContext m;
1818 int method_count = 0;
1819 GList *ccw_list, *ccw_list_item;
1820 MonoCustomAttrInfo *cinfo = NULL;
1825 klass = mono_object_get_class (object);
1827 mono_cominterop_lock ();
1829 ccw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
1830 if (!ccw_interface_hash)
1831 ccw_interface_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
1833 ccw_list = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
1834 mono_cominterop_unlock ();
1836 ccw_list_item = ccw_list;
1837 while (ccw_list_item) {
1838 MonoCCW* ccw_iter = ccw_list_item->data;
1839 if (mono_gchandle_get_target (ccw_iter->gc_handle) == object) {
1843 ccw_list_item = g_list_next(ccw_list_item);
1846 if (!iunknown [0]) {
1847 iunknown [0] = cominterop_ccw_queryinterface;
1848 iunknown [1] = cominterop_ccw_addref;
1849 iunknown [2] = cominterop_ccw_release;
1852 if (!idispatch [0]) {
1853 idispatch [0] = cominterop_ccw_get_type_info_count;
1854 idispatch [1] = cominterop_ccw_get_type_info;
1855 idispatch [2] = cominterop_ccw_get_ids_of_names;
1856 idispatch [3] = cominterop_ccw_invoke;
1860 ccw = g_new0 (MonoCCW, 1);
1862 ccw->free_marshaler = 0;
1864 ccw->vtable_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
1866 /* just alloc a weak handle until we are addref'd*/
1867 ccw->gc_handle = mono_gchandle_new_weakref (object, FALSE);
1870 ccw_list = g_list_alloc ();
1871 ccw_list->data = ccw;
1874 ccw_list = g_list_append (ccw_list, ccw);
1875 mono_cominterop_lock ();
1876 g_hash_table_insert (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)), ccw_list);
1877 mono_cominterop_unlock ();
1878 /* register for finalization to clean up ccw */
1879 mono_object_register_finalizer (object);
1882 cinfo = mono_custom_attrs_from_class (itf);
1884 static MonoClass* coclass_attribute = NULL;
1885 if (!coclass_attribute)
1886 coclass_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "CoClassAttribute");
1887 if (mono_custom_attrs_has_attr (cinfo, coclass_attribute)) {
1888 g_assert(itf->interface_count && itf->interfaces[0]);
1889 itf = itf->interfaces[0];
1892 mono_custom_attrs_free (cinfo);
1896 if (iface == mono_defaults.iunknown_class) {
1899 else if (iface == mono_defaults.idispatch_class) {
1903 method_count += iface->method.count;
1904 start_slot = cominterop_get_com_slot_begin (iface);
1908 ccw_entry = g_hash_table_lookup (ccw->vtable_hash, itf);
1911 int vtable_index = method_count-1+start_slot;
1912 vtable = mono_image_alloc0 (klass->image, sizeof (gpointer)*(method_count+start_slot));
1913 memcpy (vtable, iunknown, sizeof (iunknown));
1914 if (start_slot == 7)
1915 memcpy (vtable+3, idispatch, sizeof (idispatch));
1918 for (i = iface->method.count-1; i >= 0;i--) {
1919 int param_index = 0;
1920 MonoMethodBuilder *mb;
1921 MonoMarshalSpec ** mspecs;
1922 MonoMethod *wrapper_method, *adjust_method;
1923 MonoMethod *method = iface->methods [i];
1924 MonoMethodSignature* sig_adjusted;
1925 MonoMethodSignature* sig = mono_method_signature (method);
1926 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
1929 mb = mono_mb_new (iface, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
1930 adjust_method = cominterop_get_managed_wrapper_adjusted (method);
1931 sig_adjusted = mono_method_signature (adjust_method);
1933 mspecs = g_new (MonoMarshalSpec*, sig_adjusted->param_count + 1);
1934 mono_method_get_marshal_info (method, mspecs);
1937 /* move managed args up one */
1938 for (param_index = sig->param_count; param_index >= 1; param_index--) {
1939 int mspec_index = param_index+1;
1940 mspecs [mspec_index] = mspecs [param_index];
1942 if (mspecs[mspec_index] == NULL) {
1943 if (sig_adjusted->params[param_index]->type == MONO_TYPE_OBJECT) {
1944 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
1945 mspecs[mspec_index]->native = MONO_NATIVE_STRUCT;
1947 else if (sig_adjusted->params[param_index]->type == MONO_TYPE_STRING) {
1948 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
1949 mspecs[mspec_index]->native = MONO_NATIVE_BSTR;
1951 else if (sig_adjusted->params[param_index]->type == MONO_TYPE_CLASS) {
1952 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
1953 mspecs[mspec_index]->native = MONO_NATIVE_INTERFACE;
1955 else if (sig_adjusted->params[param_index]->type == MONO_NATIVE_BOOLEAN) {
1956 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
1957 mspecs[mspec_index]->native = MONO_NATIVE_VARIANTBOOL;
1960 /* increase SizeParamIndex since we've added a param */
1961 if (sig_adjusted->params[param_index]->type == MONO_TYPE_ARRAY ||
1962 sig_adjusted->params[param_index]->type == MONO_TYPE_SZARRAY)
1963 if (mspecs[mspec_index]->data.array_data.param_num != -1)
1964 mspecs[mspec_index]->data.array_data.param_num++;
1968 /* first arg is IntPtr for interface */
1971 /* move return spec to last param */
1972 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret)) {
1973 if (mspecs [0] == NULL) {
1974 if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_TYPE_OBJECT) {
1975 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
1976 mspecs[0]->native = MONO_NATIVE_STRUCT;
1978 else if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_TYPE_STRING) {
1979 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
1980 mspecs[0]->native = MONO_NATIVE_BSTR;
1982 else if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_TYPE_CLASS) {
1983 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
1984 mspecs[0]->native = MONO_NATIVE_INTERFACE;
1986 else if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_NATIVE_BOOLEAN) {
1987 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
1988 mspecs[0]->native = MONO_NATIVE_VARIANTBOOL;
1992 mspecs [sig_adjusted->param_count] = mspecs [0];
1996 /* skip visiblity since we call internal methods */
1997 mb->skip_visibility = TRUE;
1999 cominterop_setup_marshal_context (&m, adjust_method);
2001 mono_marshal_emit_managed_wrapper (mb, sig_adjusted, mspecs, &m, adjust_method, NULL);
2002 mono_loader_lock ();
2003 mono_cominterop_lock ();
2004 wrapper_method = mono_mb_create_method (mb, m.csig, m.csig->param_count + 16);
2005 mono_cominterop_unlock ();
2006 mono_loader_unlock ();
2008 vtable [vtable_index--] = mono_compile_method (wrapper_method);
2011 for (param_index = sig_adjusted->param_count; param_index >= 0; param_index--)
2012 if (mspecs [param_index])
2013 mono_metadata_free_marshal_spec (mspecs [param_index]);
2017 ccw_entry = g_new0 (MonoCCWInterface, 1);
2018 ccw_entry->ccw = ccw;
2019 ccw_entry->vtable = vtable;
2020 g_hash_table_insert (ccw->vtable_hash, itf, ccw_entry);
2021 g_hash_table_insert (ccw_interface_hash, ccw_entry, ccw);
2028 mono_marshal_free_ccw_entry (gpointer key, gpointer value, gpointer user_data)
2030 g_hash_table_remove (ccw_interface_hash, value);
2037 * mono_marshal_free_ccw:
2038 * @object: the mono object
2040 * Returns: whether the object had a CCW
2043 mono_marshal_free_ccw (MonoObject* object)
2045 GList *ccw_list, *ccw_list_orig, *ccw_list_item;
2046 /* no ccw's were created */
2047 if (!ccw_hash || g_hash_table_size (ccw_hash) == 0)
2050 /* need to cache orig list address to remove from hash_table if empty */
2051 mono_cominterop_lock ();
2052 ccw_list = ccw_list_orig = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
2053 mono_cominterop_unlock ();
2058 ccw_list_item = ccw_list;
2059 while (ccw_list_item) {
2060 MonoCCW* ccw_iter = ccw_list_item->data;
2061 MonoObject* handle_target = mono_gchandle_get_target (ccw_iter->gc_handle);
2063 /* Looks like the GC NULLs the weakref handle target before running the
2064 * finalizer. So if we get a NULL target, destroy the CCW as well. */
2065 if (!handle_target || handle_target == object) {
2066 /* remove all interfaces */
2067 g_hash_table_foreach_remove (ccw_iter->vtable_hash, mono_marshal_free_ccw_entry, NULL);
2068 g_hash_table_destroy (ccw_iter->vtable_hash);
2070 /* get next before we delete */
2071 ccw_list_item = g_list_next(ccw_list_item);
2073 /* remove ccw from list */
2074 ccw_list = g_list_remove (ccw_list, ccw_iter);
2078 ccw_list_item = g_list_next(ccw_list_item);
2081 /* if list is empty remove original address from hash */
2082 if (g_list_length (ccw_list) == 0)
2083 g_hash_table_remove (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
2090 * cominterop_get_managed_wrapper_adjusted:
2091 * @method: managed COM Interop method
2093 * Returns: the generated method to call with signature matching
2094 * the unmanaged COM Method signature
2097 cominterop_get_managed_wrapper_adjusted (MonoMethod *method)
2099 static MonoMethod *get_hr_for_exception = NULL;
2100 MonoMethod *res = NULL;
2101 MonoMethodBuilder *mb;
2102 MonoMarshalSpec **mspecs;
2103 MonoMethodSignature *sig, *sig_native;
2104 MonoExceptionClause *main_clause = NULL;
2108 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
2110 if (!get_hr_for_exception)
2111 get_hr_for_exception = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetHRForException", -1);
2113 sig = mono_method_signature (method);
2115 /* create unmanaged wrapper */
2116 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
2118 sig_native = cominterop_method_signature (method);
2120 mspecs = g_new0 (MonoMarshalSpec*, sig_native->param_count+1);
2122 mono_method_get_marshal_info (method, mspecs);
2124 /* move managed args up one */
2125 for (i = sig->param_count; i >= 1; i--)
2126 mspecs [i+1] = mspecs [i];
2128 /* first arg is IntPtr for interface */
2131 /* move return spec to last param */
2132 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
2133 mspecs [sig_native->param_count] = mspecs [0];
2137 if (!preserve_sig) {
2138 hr = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
2140 else if (!MONO_TYPE_IS_VOID (sig->ret))
2141 hr = mono_mb_add_local (mb, sig->ret);
2144 main_clause = g_new0 (MonoExceptionClause, 1);
2145 main_clause->try_offset = mono_mb_get_label (mb);
2147 /* load last param to store result if not preserve_sig and not void */
2148 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
2149 mono_mb_emit_ldarg (mb, sig_native->param_count-1);
2151 /* the CCW -> object conversion */
2152 mono_mb_emit_ldarg (mb, 0);
2153 mono_mb_emit_icon (mb, FALSE);
2154 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
2156 for (i = 0; i < sig->param_count; i++)
2157 mono_mb_emit_ldarg (mb, i+1);
2159 mono_mb_emit_managed_call (mb, method, NULL);
2161 if (!MONO_TYPE_IS_VOID (sig->ret)) {
2162 if (!preserve_sig) {
2163 MonoClass *rclass = mono_class_from_mono_type (sig->ret);
2164 if (rclass->valuetype) {
2165 mono_mb_emit_op (mb, CEE_STOBJ, rclass);
2167 mono_mb_emit_byte (mb, mono_type_to_stind (sig->ret));
2170 mono_mb_emit_stloc (mb, hr);
2173 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
2175 /* Main exception catch */
2176 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
2177 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
2178 main_clause->data.catch_class = mono_defaults.object_class;
2181 main_clause->handler_offset = mono_mb_get_label (mb);
2183 if (!preserve_sig || (sig->ret && !sig->ret->byref && (sig->ret->type == MONO_TYPE_U4 || sig->ret->type == MONO_TYPE_I4))) {
2184 mono_mb_emit_managed_call (mb, get_hr_for_exception, NULL);
2185 mono_mb_emit_stloc (mb, hr);
2188 mono_mb_emit_byte (mb, CEE_POP);
2191 mono_mb_emit_branch (mb, CEE_LEAVE);
2192 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
2195 mono_mb_set_clauses (mb, 1, main_clause);
2197 mono_mb_patch_branch (mb, pos_leave);
2199 if (!preserve_sig || !MONO_TYPE_IS_VOID (sig->ret))
2200 mono_mb_emit_ldloc (mb, hr);
2202 mono_mb_emit_byte (mb, CEE_RET);
2204 mono_loader_lock ();
2205 mono_cominterop_lock ();
2206 res = mono_mb_create_method (mb, sig_native, sig_native->param_count + 16);
2207 mono_cominterop_unlock ();
2208 mono_loader_unlock ();
2212 for (i = sig_native->param_count; i >= 0; i--)
2214 mono_metadata_free_marshal_spec (mspecs [i]);
2221 * cominterop_mono_string_to_guid:
2223 * Converts the standard string representation of a GUID
2224 * to a 16 byte Microsoft GUID.
2227 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid) {
2228 gunichar2 * chars = mono_string_chars (string);
2230 static guint8 indexes[16] = {7, 5, 3, 1, 12, 10, 17, 15, 20, 22, 25, 27, 29, 31, 33, 35};
2232 for (i = 0; i < sizeof(indexes); i++)
2233 guid [i] = g_unichar_xdigit_value (chars [indexes [i]]) + (g_unichar_xdigit_value (chars [indexes [i] - 1]) << 4);
2237 cominterop_class_guid_equal (guint8* guid, MonoClass* klass)
2239 guint8 klass_guid [16];
2240 if (cominterop_class_guid (klass, klass_guid))
2241 return !memcmp (guid, klass_guid, sizeof (klass_guid));
2246 cominterop_ccw_addref (MonoCCWInterface* ccwe)
2248 gint32 ref_count = 0;
2249 MonoCCW* ccw = ccwe->ccw;
2251 g_assert (ccw->gc_handle);
2252 g_assert (ccw->ref_count >= 0);
2253 ref_count = InterlockedIncrement ((gint32*)&ccw->ref_count);
2254 if (ref_count == 1) {
2255 guint32 oldhandle = ccw->gc_handle;
2256 g_assert (oldhandle);
2257 /* since we now have a ref count, alloc a strong handle*/
2258 ccw->gc_handle = mono_gchandle_new (mono_gchandle_get_target (oldhandle), FALSE);
2259 mono_gchandle_free (oldhandle);
2265 cominterop_ccw_release (MonoCCWInterface* ccwe)
2267 gint32 ref_count = 0;
2268 MonoCCW* ccw = ccwe->ccw;
2270 g_assert (ccw->ref_count > 0);
2271 ref_count = InterlockedDecrement ((gint32*)&ccw->ref_count);
2272 if (ref_count == 0) {
2273 /* allow gc of object */
2274 guint32 oldhandle = ccw->gc_handle;
2275 g_assert (oldhandle);
2277 if (ccw->free_marshaler)
2278 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (ccw->free_marshaler);
2280 ccw->gc_handle = mono_gchandle_new_weakref (mono_gchandle_get_target (oldhandle), FALSE);
2281 mono_gchandle_free (oldhandle);
2287 static const IID MONO_IID_IMarshal = {0x3, 0x0, 0x0, {0xC0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x46}};
2291 /* All ccw objects are free threaded */
2293 cominterop_ccw_getfreethreadedmarshaler (MonoCCW* ccw, MonoObject* object, gpointer* ppv)
2296 if (!ccw->free_marshaler) {
2299 tunk = cominterop_get_ccw (object, mono_defaults.iunknown_class);
2300 /* remember to addref on QI */
2301 cominterop_ccw_addref (tunk);
2302 ret = CoCreateFreeThreadedMarshaler (tunk, (LPUNKNOWN*)&ccw->free_marshaler);
2303 cominterop_ccw_release(tunk);
2306 if (!ccw->free_marshaler)
2307 return MONO_E_NOINTERFACE;
2309 return ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (ccw->free_marshaler, (IID*)&MONO_IID_IMarshal, ppv);
2311 return MONO_E_NOINTERFACE;
2317 cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv)
2320 MonoClass *itf = NULL;
2322 MonoCCW* ccw = ccwe->ccw;
2323 MonoClass* klass = NULL;
2324 MonoClass* klass_iter = NULL;
2325 MonoObject* object = mono_gchandle_get_target (ccw->gc_handle);
2328 klass = mono_object_class (object);
2333 if (!mono_domain_get ())
2334 mono_thread_attach (mono_get_root_domain ());
2336 /* handle IUnknown special */
2337 if (cominterop_class_guid_equal (riid, mono_defaults.iunknown_class)) {
2338 *ppv = cominterop_get_ccw (object, mono_defaults.iunknown_class);
2339 /* remember to addref on QI */
2340 cominterop_ccw_addref (*ppv);
2344 /* handle IDispatch special */
2345 if (cominterop_class_guid_equal (riid, mono_defaults.idispatch_class)) {
2346 if (!cominterop_can_support_dispatch (klass))
2347 return MONO_E_NOINTERFACE;
2349 *ppv = cominterop_get_ccw (object, mono_defaults.idispatch_class);
2350 /* remember to addref on QI */
2351 cominterop_ccw_addref (*ppv);
2356 /* handle IMarshal special */
2357 if (0 == memcmp (riid, &MONO_IID_IMarshal, sizeof (IID))) {
2358 return cominterop_ccw_getfreethreadedmarshaler (ccw, object, ppv);
2362 while (klass_iter && klass_iter != mono_defaults.object_class) {
2363 ifaces = mono_class_get_implemented_interfaces (klass_iter);
2365 for (i = 0; i < ifaces->len; ++i) {
2366 MonoClass *ic = NULL;
2367 ic = g_ptr_array_index (ifaces, i);
2368 if (cominterop_class_guid_equal (riid, ic)) {
2373 g_ptr_array_free (ifaces, TRUE);
2379 klass_iter = klass_iter->parent;
2382 *ppv = cominterop_get_ccw (object, itf);
2383 /* remember to addref on QI */
2384 cominterop_ccw_addref (*ppv);
2388 return MONO_E_NOINTERFACE;
2392 cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo)
2394 return MONO_E_NOTIMPL;
2398 cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo)
2400 return MONO_E_NOTIMPL;
2404 cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
2405 gunichar2** rgszNames, guint32 cNames,
2406 guint32 lcid, gint32 *rgDispId)
2408 return MONO_E_NOTIMPL;
2412 cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
2413 gpointer riid, guint32 lcid,
2414 guint16 wFlags, gpointer pDispParams,
2415 gpointer pVarResult, gpointer pExcepInfo,
2418 return MONO_E_NOTIMPL;
2421 typedef gpointer (STDCALL *SysAllocStringLenFunc)(gunichar* str, guint32 len);
2422 typedef guint32 (STDCALL *SysStringLenFunc)(gpointer bstr);
2423 typedef void (STDCALL *SysFreeStringFunc)(gunichar* str);
2425 static SysAllocStringLenFunc sys_alloc_string_len_ms = NULL;
2426 static SysStringLenFunc sys_string_len_ms = NULL;
2427 static SysFreeStringFunc sys_free_string_ms = NULL;
2429 typedef guint32 (STDCALL *SafeArrayGetDimFunc)(gpointer psa);
2430 typedef int (STDCALL *SafeArrayGetLBoundFunc)(gpointer psa, guint32 nDim, glong* plLbound);
2431 typedef int (STDCALL *SafeArrayGetUBoundFunc)(gpointer psa, guint32 nDim, glong* plUbound);
2432 typedef int (STDCALL *SafeArrayPtrOfIndexFunc)(gpointer psa, glong* rgIndices, gpointer* ppvData);
2433 typedef int (STDCALL *SafeArrayDestroyFunc)(gpointer psa);
2435 static SafeArrayGetDimFunc safe_array_get_dim_ms = NULL;
2436 static SafeArrayGetLBoundFunc safe_array_get_lbound_ms = NULL;
2437 static SafeArrayGetUBoundFunc safe_array_get_ubound_ms = NULL;
2438 static SafeArrayPtrOfIndexFunc safe_array_ptr_of_index_ms = NULL;
2439 static SafeArrayDestroyFunc safe_array_destroy_ms = NULL;
2442 init_com_provider_ms (void)
2444 static gboolean initialized = FALSE;
2446 MonoDl *module = NULL;
2447 const char* scope = "liboleaut32.so";
2452 module = mono_dl_open(scope, MONO_DL_LAZY, &error_msg);
2454 g_warning ("Error loading COM support library '%s': %s", scope, error_msg);
2455 g_assert_not_reached ();
2458 error_msg = mono_dl_symbol (module, "SysAllocStringLen", (gpointer*)&sys_alloc_string_len_ms);
2460 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysAllocStringLen", scope, error_msg);
2461 g_assert_not_reached ();
2465 error_msg = mono_dl_symbol (module, "SysStringLen", (gpointer*)&sys_string_len_ms);
2467 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysStringLen", scope, error_msg);
2468 g_assert_not_reached ();
2472 error_msg = mono_dl_symbol (module, "SysFreeString", (gpointer*)&sys_free_string_ms);
2474 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysFreeString", scope, error_msg);
2475 g_assert_not_reached ();
2479 error_msg = mono_dl_symbol (module, "SafeArrayGetDim", (gpointer*)&safe_array_get_dim_ms);
2481 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SafeArrayGetDim", scope, error_msg);
2482 g_assert_not_reached ();
2486 error_msg = mono_dl_symbol (module, "SafeArrayGetLBound", (gpointer*)&safe_array_get_lbound_ms);
2488 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SafeArrayGetLBound", scope, error_msg);
2489 g_assert_not_reached ();
2493 error_msg = mono_dl_symbol (module, "SafeArrayGetUBound", (gpointer*)&safe_array_get_ubound_ms);
2495 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SafeArrayGetUBound", scope, error_msg);
2496 g_assert_not_reached ();
2500 error_msg = mono_dl_symbol (module, "SafeArrayPtrOfIndex", (gpointer*)&safe_array_ptr_of_index_ms);
2502 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SafeArrayPtrOfIndex", scope, error_msg);
2503 g_assert_not_reached ();
2507 error_msg = mono_dl_symbol (module, "SafeArrayDestroy", (gpointer*)&safe_array_destroy_ms);
2509 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SafeArrayDestroy", scope, error_msg);
2510 g_assert_not_reached ();
2519 mono_string_to_bstr (MonoString *string_obj)
2524 return SysAllocStringLen (mono_string_chars (string_obj), mono_string_length (string_obj));
2526 if (com_provider == MONO_COM_DEFAULT) {
2527 int slen = mono_string_length (string_obj);
2528 /* allocate len + 1 utf16 characters plus 4 byte integer for length*/
2529 char *ret = g_malloc ((slen + 1) * sizeof(gunichar2) + sizeof(guint32));
2532 memcpy (ret + sizeof(guint32), mono_string_chars (string_obj), slen * sizeof(gunichar2));
2533 * ((guint32 *) ret) = slen * sizeof(gunichar2);
2534 ret [4 + slen * sizeof(gunichar2)] = 0;
2535 ret [5 + slen * sizeof(gunichar2)] = 0;
2538 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2539 gpointer ret = NULL;
2540 gunichar* str = NULL;
2542 len = mono_string_length (string_obj);
2543 str = g_utf16_to_ucs4 (mono_string_chars (string_obj), len,
2545 ret = sys_alloc_string_len_ms (str, len);
2549 g_assert_not_reached ();
2555 mono_string_from_bstr (gpointer bstr)
2560 return mono_string_new_utf16 (mono_domain_get (), bstr, SysStringLen (bstr));
2562 if (com_provider == MONO_COM_DEFAULT) {
2563 return mono_string_new_utf16 (mono_domain_get (), bstr, *((guint32 *)bstr - 1) / sizeof(gunichar2));
2564 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2565 MonoString* str = NULL;
2567 gunichar2* utf16 = NULL;
2569 utf16 = g_ucs4_to_utf16 (bstr, sys_string_len_ms (bstr), NULL, &written, NULL);
2570 str = mono_string_new_utf16 (mono_domain_get (), utf16, written);
2574 g_assert_not_reached ();
2581 mono_free_bstr (gpointer bstr)
2586 SysFreeString ((BSTR)bstr);
2588 if (com_provider == MONO_COM_DEFAULT) {
2589 g_free (((char *)bstr) - 4);
2590 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2591 sys_free_string_ms (bstr);
2593 g_assert_not_reached ();
2600 /* SAFEARRAY marshalling */
2602 mono_cominterop_emit_marshal_safearray (EmitMarshalContext *m, int argnum, MonoType *t,
2603 MonoMarshalSpec *spec,
2604 int conv_arg, MonoType **conv_arg_type,
2605 MarshalAction action)
2607 MonoMethodBuilder *mb = m->mb;
2609 mono_init_com_types ();
2613 case MARSHAL_ACTION_CONV_OUT: {
2615 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
2617 /* Generates IL code for the following algorithm:
2619 Array result; // result_var
2620 IntPtr indices; // indices_var
2621 int empty; // empty_var
2622 if (mono_marshal_safearray_begin(safearray, out result, out indices, out empty)) {
2624 int index=0; // index_var
2626 object elem = Variant.GetObjectForNativeVariant(mono_marshal_safearray_get_value(safearray, indices));
2627 result.SetValueImpl(elem, index);
2630 while (mono_marshal_safearray_next(safearray, indices));
2632 mono_marshal_safearray_end(safearray, indices);
2636 int result_var, indices_var, empty_var, elem_var, index_var;
2637 guint32 label1 = 0, label2 = 0, label3 = 0;
2638 static MonoMethod *get_object_for_native_variant = NULL;
2639 static MonoMethod *set_value_impl = NULL;
2641 result_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2642 indices_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2643 empty_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2645 mono_mb_emit_ldloc (mb, conv_arg);
2646 mono_mb_emit_ldloc_addr (mb, result_var);
2647 mono_mb_emit_ldloc_addr (mb, indices_var);
2648 mono_mb_emit_ldloc_addr (mb, empty_var);
2649 mono_mb_emit_icall (mb, mono_marshal_safearray_begin);
2651 label1 = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2653 mono_mb_emit_ldloc (mb, empty_var);
2655 label2 = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
2657 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2658 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2659 mono_mb_emit_stloc (mb, index_var);
2661 label3 = mono_mb_get_label (mb);
2663 mono_mb_emit_ldloc (mb, conv_arg);
2664 mono_mb_emit_ldloc (mb, indices_var);
2665 mono_mb_emit_icall (mb, mono_marshal_safearray_get_value);
2667 if (!get_object_for_native_variant)
2668 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2669 g_assert (get_object_for_native_variant);
2671 if (!set_value_impl)
2672 set_value_impl = mono_class_get_method_from_name (mono_defaults.array_class, "SetValueImpl", 2);
2673 g_assert (set_value_impl);
2675 elem_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2677 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2678 mono_mb_emit_stloc (mb, elem_var);
2680 mono_mb_emit_ldloc (mb, result_var);
2681 mono_mb_emit_ldloc (mb, elem_var);
2682 mono_mb_emit_ldloc (mb, index_var);
2683 mono_mb_emit_managed_call (mb, set_value_impl, NULL);
2685 mono_mb_emit_add_to_local (mb, index_var, 1);
2687 mono_mb_emit_ldloc (mb, conv_arg);
2688 mono_mb_emit_ldloc (mb, indices_var);
2689 mono_mb_emit_icall (mb, mono_marshal_safearray_next);
2690 mono_mb_emit_branch_label (mb, CEE_BRTRUE, label3);
2692 mono_mb_patch_short_branch (mb, label2);
2694 mono_mb_emit_ldloc (mb, conv_arg);
2695 mono_mb_emit_ldloc (mb, indices_var);
2696 mono_mb_emit_icall (mb, mono_marshal_safearray_end);
2698 mono_mb_patch_short_branch (mb, label1);
2700 mono_mb_emit_ldarg (mb, argnum);
2701 mono_mb_emit_ldloc (mb, result_var);
2702 mono_mb_emit_byte (mb, CEE_STIND_REF);
2708 g_assert_not_reached ();
2715 guint32 mono_marshal_safearray_get_dim (gpointer safearray)
2719 result = SafeArrayGetDim (safearray);
2721 if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2722 result = safe_array_get_dim_ms (safearray);
2724 g_assert_not_reached ();
2731 int mono_marshal_safe_array_get_lbound (gpointer psa, guint nDim, glong* plLbound)
2733 int result=MONO_S_OK;
2735 result = SafeArrayGetLBound (psa, nDim, plLbound);
2737 if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2738 result = safe_array_get_lbound_ms (psa, nDim, plLbound);
2740 g_assert_not_reached ();
2747 int mono_marshal_safe_array_get_ubound (gpointer psa, guint nDim, glong* plUbound)
2749 int result=MONO_S_OK;
2751 result = SafeArrayGetUBound (psa, nDim, plUbound);
2753 if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2754 result = safe_array_get_ubound_ms (psa, nDim, plUbound);
2756 g_assert_not_reached ();
2763 mono_marshal_safearray_begin (gpointer safearray, MonoArray **result, gpointer *indices, gpointer empty)
2766 mono_array_size_t *sizes;
2767 mono_array_size_t *bounds;
2770 gboolean bounded = FALSE;
2773 // If not on windows, check that the MS provider is used as it is
2774 // required for SAFEARRAY support.
2775 // If SAFEARRAYs are not supported, returning FALSE from this
2776 // function will prevent the other mono_marshal_safearray_xxx functions
2777 // from being called.
2778 if ((com_provider != MONO_COM_MS) || !init_com_provider_ms ()) {
2783 dim = mono_marshal_safearray_get_dim (safearray);
2785 *indices = g_malloc (dim * sizeof(int));
2787 sizes = alloca (dim * sizeof(mono_array_size_t));
2788 bounds = alloca (dim * sizeof(mono_array_size_t));
2790 (*(int*)empty) = TRUE;
2791 for (i=0; i<dim; ++i) {
2792 glong lbound, ubound;
2796 hr = mono_marshal_safe_array_get_lbound (safearray, i+1, &lbound);
2798 cominterop_raise_hr_exception (hr);
2802 hr = mono_marshal_safe_array_get_ubound (safearray, i+1, &ubound);
2804 cominterop_raise_hr_exception (hr);
2806 cursize = ubound-lbound+1;
2807 sizes [i] = cursize;
2808 bounds [i] = lbound;
2810 ((int*)*indices) [i] = lbound;
2813 (*(int*)empty) = FALSE;
2816 aklass = mono_bounded_array_class_get (mono_defaults.object_class, dim, bounded);
2817 *result = mono_array_new_full (mono_domain_get (), aklass, sizes, bounds);
2823 gpointer mono_marshal_safearray_get_value (gpointer safearray, gpointer indices)
2827 int hr = SafeArrayPtrOfIndex (safearray, indices, &result);
2829 cominterop_raise_hr_exception (hr);
2832 if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2833 int hr = safe_array_ptr_of_index_ms (safearray, indices, &result);
2835 cominterop_raise_hr_exception (hr);
2838 g_assert_not_reached ();
2845 gboolean mono_marshal_safearray_next (gpointer safearray, gpointer indices)
2848 int dim = mono_marshal_safearray_get_dim (safearray);
2850 int *pIndices = (int*) indices;
2853 for (i=dim-1; i>=0; --i)
2855 glong lbound, ubound;
2857 hr = mono_marshal_safe_array_get_ubound (safearray, i+1, &ubound);
2859 cominterop_raise_hr_exception (hr);
2862 if (++pIndices[i] <= ubound) {
2866 hr = mono_marshal_safe_array_get_lbound (safearray, i+1, &lbound);
2868 cominterop_raise_hr_exception (hr);
2871 pIndices[i] = lbound;
2880 void mono_marshal_safearray_end (gpointer safearray, gpointer indices)
2884 SafeArrayDestroy (safearray);
2886 if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2887 safe_array_destroy_ms (safearray);
2889 g_assert_not_reached ();
2894 #else /* DISABLE_COM */
2897 mono_cominterop_init (void)
2902 mono_cominterop_cleanup (void)
2907 cominterop_release_all_rcws (void)
2912 mono_marshal_free_ccw (MonoObject* object)
2918 mono_string_to_bstr (MonoString *string_obj)
2920 g_assert_not_reached ();
2925 mono_string_from_bstr (gpointer bstr)
2927 g_assert_not_reached ();
2932 mono_free_bstr (gpointer bstr)
2934 g_assert_not_reached ();
2937 #endif /* DISABLE_COM */