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 = sizeof (MonoMethodSignature) + ((sig->param_count - MONO_ZERO_LEN_ARRAY) * 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
198 #ifdef PLATFORM_WIN32
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 for (i = 0; i < ifaces->len; ++i) {
289 ic = g_ptr_array_index (ifaces, i);
290 offset = mono_class_interface_offset (method->klass, ic);
291 if (method->slot >= offset && method->slot < offset + ic->method.count)
295 g_ptr_array_free (ifaces, TRUE);
300 g_assert (MONO_CLASS_IS_INTERFACE (ic));
306 * cominterop_get_com_slot_for_method:
309 * Returns: the method's slot in the COM interface vtable
312 cominterop_get_com_slot_for_method (MonoMethod* method)
314 guint32 slot = method->slot;
315 MonoClass *ic = method->klass;
317 /* if method is on a class, we need to look up interface method exists on */
318 if (!MONO_CLASS_IS_INTERFACE(ic)) {
320 ic = cominterop_get_method_interface (method);
321 offset = mono_class_interface_offset (method->klass, ic);
322 g_assert(offset >= 0);
327 g_assert (MONO_CLASS_IS_INTERFACE (ic));
329 return slot + cominterop_get_com_slot_begin (ic);
334 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid);
337 cominterop_class_guid (MonoClass* klass, guint8* guid)
339 static MonoClass *GuidAttribute = NULL;
340 MonoCustomAttrInfo *cinfo;
342 /* Handle the GuidAttribute */
344 GuidAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "GuidAttribute");
346 cinfo = mono_custom_attrs_from_class (klass);
348 MonoReflectionGuidAttribute *attr = (MonoReflectionGuidAttribute*)mono_custom_attrs_get_attr (cinfo, GuidAttribute);
353 mono_custom_attrs_free (cinfo);
355 cominterop_mono_string_to_guid (attr->guid, guid);
362 cominterop_com_visible (MonoClass* klass)
364 static MonoClass *ComVisibleAttribute = NULL;
365 MonoCustomAttrInfo *cinfo;
367 MonoBoolean visible = 0;
369 /* Handle the ComVisibleAttribute */
370 if (!ComVisibleAttribute)
371 ComVisibleAttribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "ComVisibleAttribute");
373 cinfo = mono_custom_attrs_from_class (klass);
375 MonoReflectionComVisibleAttribute *attr = (MonoReflectionComVisibleAttribute*)mono_custom_attrs_get_attr (cinfo, ComVisibleAttribute);
378 visible = attr->visible;
380 mono_custom_attrs_free (cinfo);
385 ifaces = mono_class_get_implemented_interfaces (klass);
388 for (i = 0; i < ifaces->len; ++i) {
389 MonoClass *ic = NULL;
390 ic = g_ptr_array_index (ifaces, i);
391 if (MONO_CLASS_IS_IMPORT (ic))
395 g_ptr_array_free (ifaces, TRUE);
401 static void cominterop_raise_hr_exception (int hr)
403 static MonoMethod* throw_exception_for_hr = NULL;
405 void* params[1] = {&hr};
406 if (!throw_exception_for_hr)
407 throw_exception_for_hr = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetExceptionForHR", 1);
408 ex = (MonoException*)mono_runtime_invoke (throw_exception_for_hr, NULL, params, NULL);
409 mono_raise_exception (ex);
413 * cominterop_get_interface:
414 * @obj: managed wrapper object containing COM object
415 * @ic: interface type to retrieve for COM object
417 * Returns: the COM interface requested
420 cominterop_get_interface (MonoComObject* obj, MonoClass* ic, gboolean throw_exception)
425 g_assert (MONO_CLASS_IS_INTERFACE (ic));
427 mono_cominterop_lock ();
429 itf = g_hash_table_lookup (obj->itf_hash, GUINT_TO_POINTER ((guint)ic->interface_id));
430 mono_cominterop_unlock ();
434 int found = cominterop_class_guid (ic, iid);
437 hr = ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (obj->iunknown, iid, &itf);
438 if (hr < 0 && throw_exception) {
439 cominterop_raise_hr_exception (hr);
442 if (hr >= 0 && itf) {
443 mono_cominterop_lock ();
445 obj->itf_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
446 g_hash_table_insert (obj->itf_hash, GUINT_TO_POINTER ((guint)ic->interface_id), itf);
447 mono_cominterop_unlock ();
458 cominterop_get_hresult_for_exception (MonoException* exc)
464 static MonoReflectionType *
465 cominterop_type_from_handle (MonoType *handle)
467 MonoDomain *domain = mono_domain_get ();
468 MonoClass *klass = mono_class_from_mono_type (handle);
472 mono_class_init (klass);
473 return mono_type_get_object (domain, handle);
477 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
479 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
481 mono_register_jit_icall (func, name, sig, save);
485 mono_cominterop_init (void)
487 char* com_provider_env = NULL;
489 InitializeCriticalSection (&cominterop_mutex);
491 com_provider_env = getenv ("MONO_COM");
492 if (com_provider_env && !strcmp(com_provider_env, "MS"))
493 com_provider = MONO_COM_MS;
495 register_icall (cominterop_get_method_interface, "cominterop_get_method_interface", "ptr ptr", FALSE);
496 register_icall (cominterop_get_function_pointer, "cominterop_get_function_pointer", "ptr ptr int32", FALSE);
497 register_icall (cominterop_object_is_rcw, "cominterop_object_is_rcw", "int32 object", FALSE);
498 register_icall (cominterop_get_ccw, "cominterop_get_ccw", "ptr object ptr", FALSE);
499 register_icall (cominterop_get_ccw_object, "cominterop_get_ccw_object", "object ptr int32", FALSE);
500 register_icall (cominterop_get_hresult_for_exception, "cominterop_get_hresult_for_exception", "int32 object", FALSE);
501 register_icall (cominterop_get_interface, "cominterop_get_interface", "ptr object ptr int32", FALSE);
503 register_icall (mono_string_to_bstr, "mono_string_to_bstr", "ptr obj", FALSE);
504 register_icall (mono_string_from_bstr, "mono_string_from_bstr", "obj ptr", FALSE);
505 register_icall (mono_free_bstr, "mono_free_bstr", "void ptr", FALSE);
506 register_icall (cominterop_type_from_handle, "cominterop_type_from_handle", "object ptr", FALSE);
508 /* SAFEARRAY marshalling */
509 register_icall (mono_marshal_safearray_begin, "mono_marshal_safearray_begin", "int32 ptr ptr ptr ptr", FALSE);
510 register_icall (mono_marshal_safearray_get_value, "mono_marshal_safearray_get_value", "ptr ptr ptr", FALSE);
511 register_icall (mono_marshal_safearray_next, "mono_marshal_safearray_next", "int32 ptr ptr", FALSE);
512 register_icall (mono_marshal_safearray_end, "mono_marshal_safearray_end", "void ptr ptr", FALSE);
516 mono_cominterop_cleanup (void)
518 DeleteCriticalSection (&cominterop_mutex);
522 mono_mb_emit_cominterop_call (MonoMethodBuilder *mb, MonoMethodSignature *sig, MonoMethod* method)
524 // get function pointer from 1st arg, the COM interface pointer
525 mono_mb_emit_ldarg (mb, 0);
526 mono_mb_emit_icon (mb, cominterop_get_com_slot_for_method (method));
527 mono_mb_emit_icall (mb, cominterop_get_function_pointer);
529 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
530 mono_mb_emit_byte (mb, CEE_MONO_SAVE_LMF);
531 mono_mb_emit_calli (mb, sig);
532 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
533 mono_mb_emit_byte (mb, CEE_MONO_RESTORE_LMF);
537 mono_cominterop_emit_ptr_to_object_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
540 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
541 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN:
542 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH: {
543 static MonoClass* com_interop_proxy_class = NULL;
544 static MonoMethod* com_interop_proxy_get_proxy = NULL;
545 static MonoMethod* get_transparent_proxy = NULL;
547 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
548 MonoClass *klass = NULL;
550 /* COM types are initialized lazily */
551 mono_init_com_types ();
553 klass = mono_class_from_mono_type (type);
555 mono_mb_emit_ldloc (mb, 1);
556 mono_mb_emit_byte (mb, CEE_LDNULL);
557 mono_mb_emit_byte (mb, CEE_STIND_REF);
559 mono_mb_emit_ldloc (mb, 0);
560 mono_mb_emit_byte (mb, CEE_LDIND_I);
561 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
563 /* load dst to store later */
564 mono_mb_emit_ldloc (mb, 1);
566 mono_mb_emit_ldloc (mb, 0);
567 mono_mb_emit_byte (mb, CEE_LDIND_I);
568 mono_mb_emit_icon (mb, TRUE);
569 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
570 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
572 if (!com_interop_proxy_class)
573 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
574 if (!com_interop_proxy_get_proxy)
575 com_interop_proxy_get_proxy = mono_class_get_method_from_name_flags (com_interop_proxy_class, "GetProxy", 2, METHOD_ATTRIBUTE_PRIVATE);
576 if (!get_transparent_proxy)
577 get_transparent_proxy = mono_class_get_method_from_name (mono_defaults.real_proxy_class, "GetTransparentProxy", 0);
579 real_proxy = mono_mb_add_local (mb, &com_interop_proxy_class->byval_arg);
581 mono_mb_emit_ldloc (mb, 0);
582 mono_mb_emit_byte (mb, CEE_LDIND_I);
583 mono_mb_emit_ptr (mb, &mono_defaults.com_object_class->byval_arg);
584 mono_mb_emit_icall (mb, cominterop_type_from_handle);
585 mono_mb_emit_managed_call (mb, com_interop_proxy_get_proxy, NULL);
586 mono_mb_emit_managed_call (mb, get_transparent_proxy, NULL);
587 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
589 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
591 mono_mb_emit_byte (mb, CEE_STIND_REF);
592 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
594 /* is already managed object */
595 mono_mb_patch_short_branch (mb, pos_ccw);
596 mono_mb_emit_ldloc (mb, 0);
597 mono_mb_emit_byte (mb, CEE_LDIND_I);
598 mono_mb_emit_icon (mb, TRUE);
599 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
601 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
603 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
605 mono_mb_emit_byte (mb, CEE_STIND_REF);
607 mono_mb_patch_short_branch (mb, pos_end);
609 mono_mb_patch_short_branch (mb, pos_null);
613 g_assert_not_reached ();
618 mono_cominterop_emit_object_to_ptr_conv (MonoMethodBuilder *mb, MonoType *type, MonoMarshalConv conv, MonoMarshalSpec *mspec)
621 case MONO_MARSHAL_CONV_OBJECT_INTERFACE:
622 case MONO_MARSHAL_CONV_OBJECT_IDISPATCH:
623 case MONO_MARSHAL_CONV_OBJECT_IUNKNOWN: {
624 guint32 pos_null = 0, pos_rcw = 0, pos_end = 0;
626 /* COM types are initialized lazily */
627 mono_init_com_types ();
630 mono_mb_emit_ldloc (mb, 1);
631 mono_mb_emit_icon (mb, 0);
632 mono_mb_emit_byte (mb, CEE_CONV_U);
633 mono_mb_emit_byte (mb, CEE_STIND_I);
635 mono_mb_emit_ldloc (mb, 0);
636 mono_mb_emit_byte (mb, CEE_LDIND_REF);
638 // if null just break, dst was already inited to 0
639 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
641 mono_mb_emit_ldloc (mb, 0);
642 mono_mb_emit_byte (mb, CEE_LDIND_REF);
643 mono_mb_emit_icall (mb, cominterop_object_is_rcw);
644 pos_rcw = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
646 // load dst to store later
647 mono_mb_emit_ldloc (mb, 1);
650 mono_mb_emit_ldloc (mb, 0);
651 mono_mb_emit_byte (mb, CEE_LDIND_REF);
652 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
653 mono_mb_emit_byte (mb, CEE_LDIND_REF);
655 /* load the RCW from the ComInteropProxy*/
656 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
657 mono_mb_emit_byte (mb, CEE_LDIND_REF);
659 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE) {
660 mono_mb_emit_ptr (mb, mono_type_get_class (type));
661 mono_mb_emit_icon (mb, TRUE);
662 mono_mb_emit_icall (mb, cominterop_get_interface);
665 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN) {
666 static MonoProperty* iunknown = NULL;
669 iunknown = mono_class_get_property_from_name (mono_defaults.com_object_class, "IUnknown");
670 mono_mb_emit_managed_call (mb, iunknown->get, NULL);
672 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH) {
673 static MonoProperty* idispatch = NULL;
676 idispatch = mono_class_get_property_from_name (mono_defaults.com_object_class, "IDispatch");
677 mono_mb_emit_managed_call (mb, idispatch->get, NULL);
680 g_assert_not_reached ();
682 mono_mb_emit_byte (mb, CEE_STIND_I);
683 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
686 mono_mb_patch_short_branch (mb, pos_rcw);
687 /* load dst to store later */
688 mono_mb_emit_ldloc (mb, 1);
690 mono_mb_emit_ldloc (mb, 0);
691 mono_mb_emit_byte (mb, CEE_LDIND_REF);
693 if (conv == MONO_MARSHAL_CONV_OBJECT_INTERFACE)
694 mono_mb_emit_ptr (mb, mono_type_get_class (type));
695 else if (conv == MONO_MARSHAL_CONV_OBJECT_IUNKNOWN)
696 mono_mb_emit_ptr (mb, mono_defaults.iunknown_class);
697 else if (conv == MONO_MARSHAL_CONV_OBJECT_IDISPATCH)
698 mono_mb_emit_ptr (mb, mono_defaults.idispatch_class);
700 g_assert_not_reached ();
701 mono_mb_emit_icall (mb, cominterop_get_ccw);
702 mono_mb_emit_byte (mb, CEE_STIND_I);
704 mono_mb_patch_short_branch (mb, pos_end);
705 mono_mb_patch_short_branch (mb, pos_null);
709 g_assert_not_reached ();
714 * cominterop_get_native_wrapper_adjusted:
715 * @method: managed COM Interop method
717 * Returns: the generated method to call with signature matching
718 * the unmanaged COM Method signature
721 cominterop_get_native_wrapper_adjusted (MonoMethod *method)
724 MonoMethodBuilder *mb_native;
725 MonoMarshalSpec **mspecs;
726 MonoMethodSignature *sig, *sig_native;
727 MonoMethodPInvoke *piinfo = (MonoMethodPInvoke *) method;
730 sig = mono_method_signature (method);
732 // create unmanaged wrapper
733 mb_native = mono_mb_new (method->klass, method->name, MONO_WRAPPER_MANAGED_TO_NATIVE);
734 sig_native = cominterop_method_signature (method);
736 mspecs = g_new (MonoMarshalSpec*, sig_native->param_count+1);
737 memset (mspecs, 0, sizeof(MonoMarshalSpec*)*(sig_native->param_count+1));
739 mono_method_get_marshal_info (method, mspecs);
741 // move managed args up one
742 for (i = sig->param_count; i >= 1; i--)
743 mspecs[i+1] = mspecs[i];
745 // first arg is IntPtr for interface
748 if (!(method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG)) {
749 // move return spec to last param
750 if (!MONO_TYPE_IS_VOID (sig->ret))
751 mspecs[sig_native->param_count] = mspecs[0];
756 for (i = 1; i < sig_native->param_count; i++) {
757 int mspec_index = i + 1;
758 if (mspecs[mspec_index] == NULL) {
759 // default object to VARIANT
760 if (sig_native->params[i]->type == MONO_TYPE_OBJECT) {
761 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
762 mspecs[mspec_index]->native = MONO_NATIVE_STRUCT;
764 else if (sig_native->params[i]->type == MONO_TYPE_STRING) {
765 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
766 mspecs[mspec_index]->native = MONO_NATIVE_BSTR;
768 else if (sig_native->params[i]->type == MONO_TYPE_CLASS) {
769 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
770 mspecs[mspec_index]->native = MONO_NATIVE_INTERFACE;
772 else if (sig_native->params[i]->type == MONO_NATIVE_BOOLEAN) {
773 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
774 mspecs[mspec_index]->native = MONO_NATIVE_VARIANTBOOL;
779 if (method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG) {
780 // move return spec to last param
781 if (!MONO_TYPE_IS_VOID (sig->ret) && mspecs[0] == NULL) {
782 // default object to VARIANT
783 if (sig->ret->type == MONO_TYPE_OBJECT) {
784 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
785 mspecs[0]->native = MONO_NATIVE_STRUCT;
787 else if (sig->ret->type == MONO_TYPE_STRING) {
788 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
789 mspecs[0]->native = MONO_NATIVE_BSTR;
791 else if (sig->ret->type == MONO_TYPE_CLASS) {
792 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
793 mspecs[0]->native = MONO_NATIVE_INTERFACE;
795 else if (sig->ret->type == MONO_NATIVE_BOOLEAN) {
796 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
797 mspecs[0]->native = MONO_NATIVE_VARIANTBOOL;
802 mono_marshal_emit_native_wrapper (method->klass->image, mb_native, sig_native, piinfo, mspecs, piinfo->addr, FALSE, TRUE);
804 res = mono_mb_create_method (mb_native, sig_native, sig_native->param_count + 16);
806 mono_mb_free (mb_native);
808 for (i = sig_native->param_count; i >= 0; i--)
810 mono_metadata_free_marshal_spec (mspecs [i]);
817 * mono_cominterop_get_native_wrapper:
818 * @method: managed method
820 * Returns: the generated method to call
823 mono_cominterop_get_native_wrapper (MonoMethod *method)
827 MonoMethodBuilder *mb;
828 MonoMethodSignature *sig, *csig;
832 cache = mono_marshal_get_cache (&method->klass->image->cominterop_wrapper_cache, mono_aligned_addr_hash, NULL);
833 if ((res = mono_marshal_find_in_cache (cache, method)))
836 mono_init_com_types ();
838 if (!method->klass->vtable)
839 mono_class_setup_vtable (method->klass);
841 if (!method->klass->methods)
842 mono_class_setup_methods (method->klass);
844 sig = mono_method_signature (method);
845 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
847 /* if method klass is import, that means method
848 * is really a com call. let interop system emit it.
850 if (MONO_CLASS_IS_IMPORT(method->klass)) {
851 /* FIXME: we have to call actual class .ctor
852 * instead of just __ComObject .ctor.
854 if (!strcmp(method->name, ".ctor")) {
855 static MonoMethod *ctor = NULL;
858 ctor = mono_class_get_method_from_name (mono_defaults.com_object_class, ".ctor", 0);
859 mono_mb_emit_ldarg (mb, 0);
860 mono_mb_emit_managed_call (mb, ctor, NULL);
861 mono_mb_emit_byte (mb, CEE_RET);
864 static MonoMethod * ThrowExceptionForHR = NULL;
865 MonoMethod *adjusted_method;
869 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
871 // add local variables
872 ptr_this = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
873 if (!MONO_TYPE_IS_VOID (sig->ret))
874 retval = mono_mb_add_local (mb, sig->ret);
876 // get the type for the interface the method is defined on
877 // and then get the underlying COM interface for that type
878 mono_mb_emit_ldarg (mb, 0);
879 mono_mb_emit_ptr (mb, method);
880 mono_mb_emit_icall (mb, cominterop_get_method_interface);
881 mono_mb_emit_icon (mb, TRUE);
882 mono_mb_emit_icall (mb, cominterop_get_interface);
883 mono_mb_emit_stloc (mb, ptr_this);
885 // arg 1 is unmanaged this pointer
886 mono_mb_emit_ldloc (mb, ptr_this);
889 for (i = 1; i <= sig->param_count; i++)
890 mono_mb_emit_ldarg (mb, i);
892 // push managed return value as byref last argument
893 if (!MONO_TYPE_IS_VOID (sig->ret) && !preserve_sig)
894 mono_mb_emit_ldloc_addr (mb, retval);
896 adjusted_method = cominterop_get_native_wrapper_adjusted (method);
897 mono_mb_emit_managed_call (mb, adjusted_method, NULL);
900 if (!ThrowExceptionForHR)
901 ThrowExceptionForHR = mono_class_get_method_from_name (mono_defaults.marshal_class, "ThrowExceptionForHR", 1);
902 mono_mb_emit_managed_call (mb, ThrowExceptionForHR, NULL);
904 // load return value managed is expecting
905 if (!MONO_TYPE_IS_VOID (sig->ret))
906 mono_mb_emit_ldloc (mb, retval);
909 mono_mb_emit_byte (mb, CEE_RET);
914 /* Does this case ever get hit? */
916 char *msg = g_strdup ("non imported interfaces on \
917 imported classes is not yet implemented.");
918 mono_mb_emit_exception (mb, "NotSupportedException", msg);
920 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
922 res = mono_mb_create_and_cache (cache, method,
923 mb, csig, csig->param_count + 16);
929 * mono_cominterop_get_invoke:
930 * @method: managed method
932 * Returns: the generated method that calls the underlying __ComObject
933 * rather than the proxy object.
936 mono_cominterop_get_invoke (MonoMethod *method)
938 MonoMethodSignature *sig;
939 MonoMethodBuilder *mb;
942 GHashTable* cache = mono_marshal_get_cache (&method->klass->image->cominterop_invoke_cache, mono_aligned_addr_hash, NULL);
946 if ((res = mono_marshal_find_in_cache (cache, method)))
949 sig = mono_signature_no_pinvoke (method);
951 /* we cant remote methods without this pointer */
955 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP_INVOKE);
957 /* get real proxy object, which is a ComInteropProxy in this case*/
958 temp_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
959 mono_mb_emit_ldarg (mb, 0);
960 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
961 mono_mb_emit_byte (mb, CEE_LDIND_REF);
963 /* load the RCW from the ComInteropProxy*/
964 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoComInteropProxy, com_object));
965 mono_mb_emit_byte (mb, CEE_LDIND_REF);
967 /* load args and make the call on the RCW */
968 for (i = 1; i <= sig->param_count; i++)
969 mono_mb_emit_ldarg (mb, i);
971 if (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) {
972 MonoMethod * native_wrapper = mono_cominterop_get_native_wrapper(method);
973 mono_mb_emit_managed_call (mb, native_wrapper, NULL);
976 if (method->flags & METHOD_ATTRIBUTE_VIRTUAL)
977 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
979 mono_mb_emit_op (mb, CEE_CALL, method);
982 if (!strcmp(method->name, ".ctor")) {
983 static MonoClass *com_interop_proxy_class = NULL;
984 static MonoMethod *cache_proxy = NULL;
986 if (!com_interop_proxy_class)
987 com_interop_proxy_class = mono_class_from_name (mono_defaults.corlib, "Mono.Interop", "ComInteropProxy");
989 cache_proxy = mono_class_get_method_from_name (com_interop_proxy_class, "CacheProxy", 0);
991 mono_mb_emit_ldarg (mb, 0);
992 mono_mb_emit_ldflda (mb, G_STRUCT_OFFSET (MonoTransparentProxy, rp));
993 mono_mb_emit_byte (mb, CEE_LDIND_REF);
994 mono_mb_emit_managed_call (mb, cache_proxy, NULL);
997 mono_marshal_emit_thread_interrupt_checkpoint (mb);
999 mono_mb_emit_byte (mb, CEE_RET);
1001 res = mono_mb_create_and_cache (cache, method, mb, sig, sig->param_count + 16);
1007 /* Maps a managed object to its unmanaged representation
1008 * i.e. it's COM Callable Wrapper (CCW).
1012 static GHashTable* ccw_hash = NULL;
1014 /* Maps a CCW interface to it's containing CCW.
1015 * Note that a CCW support many interfaces.
1017 * Value: MonoCCWInterface*
1019 static GHashTable* ccw_interface_hash = NULL;
1021 /* Maps the IUnknown value of a RCW to
1022 * it's MonoComInteropProxy*.
1026 static GHashTable* rcw_hash = NULL;
1029 mono_cominterop_emit_marshal_com_interface (EmitMarshalContext *m, int argnum,
1031 MonoMarshalSpec *spec,
1032 int conv_arg, MonoType **conv_arg_type,
1033 MarshalAction action)
1035 MonoMethodBuilder *mb = m->mb;
1036 MonoClass *klass = t->data.klass;
1037 static MonoMethod* get_object_for_iunknown = NULL;
1038 static MonoMethod* get_iunknown_for_object_internal = NULL;
1039 static MonoMethod* get_com_interface_for_object_internal = NULL;
1040 static MonoMethod* get_idispatch_for_object_internal = NULL;
1041 static MonoMethod* marshal_release = NULL;
1042 static MonoMethod* AddRef = NULL;
1043 if (!get_object_for_iunknown)
1044 get_object_for_iunknown = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForIUnknown", 1);
1045 if (!get_iunknown_for_object_internal)
1046 get_iunknown_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIUnknownForObjectInternal", 1);
1047 if (!get_idispatch_for_object_internal)
1048 get_idispatch_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetIDispatchForObjectInternal", 1);
1049 if (!get_com_interface_for_object_internal)
1050 get_com_interface_for_object_internal = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetComInterfaceForObjectInternal", 2);
1051 if (!marshal_release)
1052 marshal_release = mono_class_get_method_from_name (mono_defaults.marshal_class, "Release", 1);
1054 /* COM types are initialized lazily */
1055 mono_init_com_types ();
1058 case MARSHAL_ACTION_CONV_IN: {
1059 guint32 pos_null = 0;
1061 *conv_arg_type = &mono_defaults.int_class->byval_arg;
1062 conv_arg = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1064 mono_mb_emit_ptr (mb, NULL);
1065 mono_mb_emit_stloc (mb, conv_arg);
1067 /* we dont need any conversions for out parameters */
1068 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT)
1071 mono_mb_emit_ldarg (mb, argnum);
1073 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1074 /* if null just break, conv arg was already inited to 0 */
1075 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1077 mono_mb_emit_ldarg (mb, argnum);
1079 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1081 if (klass && klass != mono_defaults.object_class) {
1082 mono_mb_emit_ptr (mb, t);
1083 mono_mb_emit_icall (mb, cominterop_type_from_handle);
1084 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
1086 else if (spec->native == MONO_NATIVE_IUNKNOWN)
1087 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
1088 else if (spec->native == MONO_NATIVE_IDISPATCH)
1089 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
1090 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
1091 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
1093 g_assert_not_reached ();
1094 mono_mb_emit_stloc (mb, conv_arg);
1095 mono_mb_patch_short_branch (mb, pos_null);
1099 case MARSHAL_ACTION_CONV_OUT: {
1100 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT)) {
1102 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
1103 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1105 mono_mb_emit_ldarg (mb, argnum);
1106 mono_mb_emit_byte (mb, CEE_LDNULL);
1107 mono_mb_emit_byte (mb, CEE_STIND_REF);
1109 mono_mb_emit_ldloc (mb, conv_arg);
1110 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1112 mono_mb_emit_ldloc (mb, conv_arg);
1113 mono_mb_emit_icon (mb, TRUE);
1114 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1115 mono_mb_emit_stloc (mb, ccw_obj);
1116 mono_mb_emit_ldloc (mb, ccw_obj);
1117 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
1119 mono_mb_emit_ldarg (mb, argnum);
1120 mono_mb_emit_ldloc (mb, conv_arg);
1121 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
1123 if (klass && klass != mono_defaults.object_class)
1124 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1125 mono_mb_emit_byte (mb, CEE_STIND_REF);
1127 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
1129 /* is already managed object */
1130 mono_mb_patch_short_branch (mb, pos_ccw);
1131 mono_mb_emit_ldarg (mb, argnum);
1132 mono_mb_emit_ldloc (mb, ccw_obj);
1134 if (klass && klass != mono_defaults.object_class)
1135 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1136 mono_mb_emit_byte (mb, CEE_STIND_REF);
1138 mono_mb_patch_short_branch (mb, pos_end);
1140 /* need to call Release to follow COM rules of ownership */
1141 mono_mb_emit_ldloc (mb, conv_arg);
1142 mono_mb_emit_managed_call (mb, marshal_release, NULL);
1143 mono_mb_emit_byte (mb, CEE_POP);
1146 mono_mb_patch_short_branch (mb, pos_null);
1150 case MARSHAL_ACTION_PUSH:
1152 mono_mb_emit_ldloc_addr (mb, conv_arg);
1154 mono_mb_emit_ldloc (mb, conv_arg);
1157 case MARSHAL_ACTION_CONV_RESULT: {
1158 int ccw_obj, ret_ptr;
1159 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
1160 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1161 ret_ptr = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
1163 /* store return value */
1164 mono_mb_emit_stloc (mb, ret_ptr);
1166 mono_mb_emit_ldloc (mb, ret_ptr);
1167 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1169 mono_mb_emit_ldloc (mb, ret_ptr);
1170 mono_mb_emit_icon (mb, TRUE);
1171 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1172 mono_mb_emit_stloc (mb, ccw_obj);
1173 mono_mb_emit_ldloc (mb, ccw_obj);
1174 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
1176 mono_mb_emit_ldloc (mb, ret_ptr);
1177 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
1179 if (klass && klass != mono_defaults.object_class)
1180 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1181 mono_mb_emit_stloc (mb, 3);
1183 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
1185 /* is already managed object */
1186 mono_mb_patch_short_branch (mb, pos_ccw);
1187 mono_mb_emit_ldloc (mb, ccw_obj);
1189 if (klass && klass != mono_defaults.object_class)
1190 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1191 mono_mb_emit_stloc (mb, 3);
1193 mono_mb_patch_short_branch (mb, pos_end);
1195 /* need to call Release to follow COM rules of ownership */
1196 mono_mb_emit_ldloc (mb, ret_ptr);
1197 mono_mb_emit_managed_call (mb, marshal_release, NULL);
1198 mono_mb_emit_byte (mb, CEE_POP);
1201 mono_mb_patch_short_branch (mb, pos_null);
1205 case MARSHAL_ACTION_MANAGED_CONV_IN: {
1207 guint32 pos_null = 0, pos_ccw = 0, pos_end = 0;
1208 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1210 klass = mono_class_from_mono_type (t);
1211 conv_arg = mono_mb_add_local (mb, &klass->byval_arg);
1212 *conv_arg_type = &mono_defaults.int_class->byval_arg;
1214 mono_mb_emit_byte (mb, CEE_LDNULL);
1215 mono_mb_emit_stloc (mb, conv_arg);
1216 if (t->attrs & PARAM_ATTRIBUTE_OUT)
1219 mono_mb_emit_ldarg (mb, argnum);
1221 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1222 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1224 mono_mb_emit_ldarg (mb, argnum);
1226 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1227 mono_mb_emit_icon (mb, TRUE);
1228 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
1229 mono_mb_emit_stloc (mb, ccw_obj);
1230 mono_mb_emit_ldloc (mb, ccw_obj);
1231 pos_ccw = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
1234 mono_mb_emit_ldarg (mb, argnum);
1236 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1237 mono_mb_emit_managed_call (mb, get_object_for_iunknown, NULL);
1239 if (klass && klass != mono_defaults.object_class)
1240 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1241 mono_mb_emit_stloc (mb, conv_arg);
1242 pos_end = mono_mb_emit_short_branch (mb, CEE_BR_S);
1244 /* is already managed object */
1245 mono_mb_patch_short_branch (mb, pos_ccw);
1246 mono_mb_emit_ldloc (mb, ccw_obj);
1247 if (klass && klass != mono_defaults.object_class)
1248 mono_mb_emit_op (mb, CEE_CASTCLASS, klass);
1249 mono_mb_emit_stloc (mb, conv_arg);
1251 mono_mb_patch_short_branch (mb, pos_end);
1253 mono_mb_patch_short_branch (mb, pos_null);
1257 case MARSHAL_ACTION_MANAGED_CONV_OUT: {
1258 if (t->byref && t->attrs & PARAM_ATTRIBUTE_OUT) {
1259 guint32 pos_null = 0;
1262 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
1264 mono_mb_emit_ldarg (mb, argnum);
1265 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1266 mono_mb_emit_byte (mb, CEE_STIND_I);
1268 mono_mb_emit_ldloc (mb, conv_arg);
1269 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1271 /* to store later */
1272 mono_mb_emit_ldarg (mb, argnum);
1273 mono_mb_emit_ldloc (mb, conv_arg);
1274 if (klass && klass != mono_defaults.object_class) {
1275 mono_mb_emit_ptr (mb, t);
1276 mono_mb_emit_icall (mb, cominterop_type_from_handle);
1277 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
1279 else if (spec->native == MONO_NATIVE_IUNKNOWN)
1280 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
1281 else if (spec->native == MONO_NATIVE_IDISPATCH)
1282 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
1283 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
1284 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
1286 g_assert_not_reached ();
1287 mono_mb_emit_byte (mb, CEE_STIND_I);
1289 mono_mb_emit_ldarg (mb, argnum);
1290 mono_mb_emit_byte (mb, CEE_LDIND_I);
1291 mono_mb_emit_managed_call (mb, AddRef, NULL);
1292 mono_mb_emit_byte (mb, CEE_POP);
1294 mono_mb_patch_short_branch (mb, pos_null);
1299 case MARSHAL_ACTION_MANAGED_CONV_RESULT: {
1300 guint32 pos_null = 0;
1302 ccw_obj = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
1305 AddRef = mono_class_get_method_from_name (mono_defaults.marshal_class, "AddRef", 1);
1307 /* store return value */
1308 mono_mb_emit_stloc (mb, ccw_obj);
1310 mono_mb_emit_ldloc (mb, ccw_obj);
1312 /* if null just break, conv arg was already inited to 0 */
1313 pos_null = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1315 /* to store later */
1316 mono_mb_emit_ldloc (mb, ccw_obj);
1317 if (klass && klass != mono_defaults.object_class) {
1318 mono_mb_emit_ptr (mb, t);
1319 mono_mb_emit_icall (mb, cominterop_type_from_handle);
1320 mono_mb_emit_managed_call (mb, get_com_interface_for_object_internal, NULL);
1322 else if (spec->native == MONO_NATIVE_IUNKNOWN)
1323 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
1324 else if (spec->native == MONO_NATIVE_IDISPATCH)
1325 mono_mb_emit_managed_call (mb, get_idispatch_for_object_internal, NULL);
1326 else if (!klass && spec->native == MONO_NATIVE_INTERFACE)
1327 mono_mb_emit_managed_call (mb, get_iunknown_for_object_internal, NULL);
1329 g_assert_not_reached ();
1330 mono_mb_emit_stloc (mb, 3);
1331 mono_mb_emit_ldloc (mb, 3);
1333 mono_mb_emit_managed_call (mb, AddRef, NULL);
1334 mono_mb_emit_byte (mb, CEE_POP);
1336 mono_mb_patch_short_branch (mb, pos_null);
1341 g_assert_not_reached ();
1349 int (STDCALL *QueryInterface)(gpointer pUnk, gpointer riid, gpointer* ppv);
1350 int (STDCALL *AddRef)(gpointer pUnk);
1351 int (STDCALL *Release)(gpointer pUnk);
1354 #define MONO_S_OK 0x00000000L
1355 #define MONO_E_NOINTERFACE 0x80004002L
1356 #define MONO_E_NOTIMPL 0x80004001L
1359 ves_icall_System_Runtime_InteropServices_Marshal_AddRefInternal (gpointer pUnk)
1362 return (*(MonoIUnknown**)pUnk)->AddRef(pUnk);
1366 ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (gpointer pUnk, gpointer riid, gpointer* ppv)
1369 return (*(MonoIUnknown**)pUnk)->QueryInterface(pUnk, riid, ppv);
1373 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (gpointer pUnk)
1376 return (*(MonoIUnknown**)pUnk)->Release(pUnk);
1379 static gboolean cominterop_can_support_dispatch (MonoClass* klass)
1381 if (!(klass->flags & TYPE_ATTRIBUTE_PUBLIC) )
1384 if (!cominterop_com_visible (klass))
1391 cominterop_get_idispatch_for_object (MonoObject* object)
1396 if (cominterop_object_is_rcw (object)) {
1397 return cominterop_get_interface (((MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp)->com_object,
1398 mono_defaults.idispatch_class, TRUE);
1401 MonoClass* klass = mono_object_class (object);
1402 if (!cominterop_can_support_dispatch (klass) )
1403 cominterop_raise_hr_exception (MONO_E_NOINTERFACE);
1404 return cominterop_get_ccw (object, mono_defaults.idispatch_class);
1409 ves_icall_System_Runtime_InteropServices_Marshal_GetIUnknownForObjectInternal (MonoObject* object)
1415 mono_init_com_types ();
1417 if (cominterop_object_is_rcw (object)) {
1418 MonoClass *klass = NULL;
1419 MonoRealProxy* real_proxy = NULL;
1422 klass = mono_object_class (object);
1423 if (klass != mono_defaults.transparent_proxy_class) {
1424 g_assert_not_reached ();
1428 real_proxy = ((MonoTransparentProxy*)object)->rp;
1430 g_assert_not_reached ();
1434 klass = mono_object_class (real_proxy);
1435 if (klass != mono_defaults.com_interop_proxy_class) {
1436 g_assert_not_reached ();
1440 if (!((MonoComInteropProxy*)real_proxy)->com_object) {
1441 g_assert_not_reached ();
1445 return ((MonoComInteropProxy*)real_proxy)->com_object->iunknown;
1448 return cominterop_get_ccw (object, mono_defaults.iunknown_class);
1451 g_assert_not_reached ();
1456 ves_icall_System_Runtime_InteropServices_Marshal_GetObjectForCCW (void* pUnk)
1459 MonoObject* object = NULL;
1464 /* see if it is a CCW */
1465 object = cominterop_get_ccw_object ((MonoCCWInterface*)pUnk, TRUE);
1469 g_assert_not_reached ();
1474 ves_icall_System_Runtime_InteropServices_Marshal_GetIDispatchForObjectInternal (MonoObject* object)
1477 mono_init_com_types ();
1479 return cominterop_get_idispatch_for_object (object);
1481 g_assert_not_reached ();
1486 ves_icall_System_Runtime_InteropServices_Marshal_GetCCW (MonoObject* object, MonoReflectionType* type)
1489 MonoClass* klass = NULL;
1492 g_assert (type->type);
1493 klass = mono_type_get_class (type->type);
1495 itf = cominterop_get_ccw (object, klass);
1499 g_assert_not_reached ();
1505 ves_icall_System_Runtime_InteropServices_Marshal_IsComObject (MonoObject* object)
1508 return (MonoBoolean)cominterop_object_is_rcw (object);
1510 g_assert_not_reached ();
1515 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseComObjectInternal (MonoObject* object)
1518 MonoComInteropProxy* proxy = NULL;
1519 gint32 ref_count = 0;
1522 g_assert (cominterop_object_is_rcw (object));
1524 proxy = (MonoComInteropProxy*)((MonoTransparentProxy*)object)->rp;
1527 if (proxy->ref_count == 0)
1530 ref_count = InterlockedDecrement (&proxy->ref_count);
1532 g_assert (ref_count >= 0);
1535 ves_icall_System_ComObject_ReleaseInterfaces (proxy->com_object);
1539 g_assert_not_reached ();
1544 ves_icall_System_Runtime_InteropServices_Marshal_GetComSlotForMethodInfoInternal (MonoReflectionMethod *m)
1546 MONO_ARCH_SAVE_REGS;
1549 return cominterop_get_com_slot_for_method (m->method);
1551 g_assert_not_reached ();
1555 /* Only used for COM RCWs */
1557 ves_icall_System_ComObject_CreateRCW (MonoReflectionType *type)
1563 MONO_ARCH_SAVE_REGS;
1565 domain = mono_object_domain (type);
1566 klass = mono_class_from_mono_type (type->type);
1568 /* call mono_object_new_alloc_specific instead of mono_object_new
1569 * because we want to actually create object. mono_object_new checks
1570 * to see if type is import and creates transparent proxy. this method
1571 * is called by the corresponding real proxy to create the real RCW.
1572 * Constructor does not need to be called. Will be called later.
1574 obj = mono_object_new_alloc_specific (mono_class_vtable (domain, klass));
1579 cominterop_rcw_interface_finalizer (gpointer key, gpointer value, gpointer user_data)
1581 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (value);
1586 ves_icall_System_ComObject_ReleaseInterfaces (MonoComObject* obj)
1589 if (obj->itf_hash) {
1590 guint32 gchandle = 0;
1591 mono_cominterop_lock ();
1592 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, obj->iunknown));
1594 mono_gchandle_free (gchandle);
1595 g_hash_table_remove (rcw_hash, obj->iunknown);
1598 g_hash_table_foreach_remove (obj->itf_hash, cominterop_rcw_interface_finalizer, NULL);
1599 g_hash_table_destroy (obj->itf_hash);
1600 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (obj->iunknown);
1601 obj->itf_hash = obj->iunknown = NULL;
1602 mono_cominterop_unlock ();
1607 cominterop_rcw_finalizer (gpointer key, gpointer value, gpointer user_data)
1609 guint32 gchandle = 0;
1611 gchandle = GPOINTER_TO_UINT (value);
1613 MonoComInteropProxy* proxy = (MonoComInteropProxy*)mono_gchandle_get_target (gchandle);
1616 if (proxy->com_object->itf_hash) {
1617 g_hash_table_foreach_remove (proxy->com_object->itf_hash, cominterop_rcw_interface_finalizer, NULL);
1618 g_hash_table_destroy (proxy->com_object->itf_hash);
1620 if (proxy->com_object->iunknown)
1621 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (proxy->com_object->iunknown);
1622 proxy->com_object->itf_hash = proxy->com_object->iunknown = NULL;
1625 mono_gchandle_free (gchandle);
1632 cominterop_release_all_rcws (void)
1637 mono_cominterop_lock ();
1639 g_hash_table_foreach_remove (rcw_hash, cominterop_rcw_finalizer, NULL);
1640 g_hash_table_destroy (rcw_hash);
1643 mono_cominterop_unlock ();
1647 ves_icall_System_ComObject_GetInterfaceInternal (MonoComObject* obj, MonoReflectionType* type, MonoBoolean throw_exception)
1650 return cominterop_get_interface (obj, mono_type_get_class (type->type), (gboolean)throw_exception);
1652 g_assert_not_reached ();
1657 ves_icall_Mono_Interop_ComInteropProxy_AddProxy (gpointer pUnk, MonoComInteropProxy* proxy)
1660 guint32 gchandle = 0;
1662 mono_cominterop_lock ();
1663 rcw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
1664 mono_cominterop_unlock ();
1667 gchandle = mono_gchandle_new_weakref ((MonoObject*)proxy, FALSE);
1669 mono_cominterop_lock ();
1670 g_hash_table_insert (rcw_hash, pUnk, GUINT_TO_POINTER (gchandle));
1671 mono_cominterop_unlock ();
1673 g_assert_not_reached ();
1677 MonoComInteropProxy*
1678 ves_icall_Mono_Interop_ComInteropProxy_FindProxy (gpointer pUnk)
1681 MonoComInteropProxy* proxy = NULL;
1682 guint32 gchandle = 0;
1684 mono_cominterop_lock ();
1686 gchandle = GPOINTER_TO_UINT (g_hash_table_lookup (rcw_hash, pUnk));
1687 mono_cominterop_unlock ();
1689 proxy = (MonoComInteropProxy*)mono_gchandle_get_target (gchandle);
1690 /* proxy is null means we need to free up old RCW */
1692 mono_gchandle_free (gchandle);
1693 g_hash_table_remove (rcw_hash, pUnk);
1698 g_assert_not_reached ();
1703 ves_icall_System_Runtime_InteropServices_Marshal_PtrToStringBSTR (gpointer ptr)
1705 MONO_ARCH_SAVE_REGS;
1707 return mono_string_from_bstr(ptr);
1711 ves_icall_System_Runtime_InteropServices_Marshal_StringToBSTR (MonoString* ptr)
1713 MONO_ARCH_SAVE_REGS;
1715 return mono_string_to_bstr(ptr);
1719 ves_icall_System_Runtime_InteropServices_Marshal_FreeBSTR (gpointer ptr)
1721 MONO_ARCH_SAVE_REGS;
1723 mono_free_bstr (ptr);
1727 * cominterop_get_ccw_object:
1728 * @ccw_entry: a pointer to the CCWEntry
1729 * @verify: verify ccw_entry is in fact a ccw
1731 * Returns: the corresponding object for the CCW
1734 cominterop_get_ccw_object (MonoCCWInterface* ccw_entry, gboolean verify)
1736 MonoCCW *ccw = NULL;
1738 /* no CCW's exist yet */
1739 if (!ccw_interface_hash)
1743 ccw = g_hash_table_lookup (ccw_interface_hash, ccw_entry);
1746 ccw = ccw_entry->ccw;
1750 return mono_gchandle_get_target (ccw->gc_handle);
1756 cominterop_setup_marshal_context (EmitMarshalContext *m, MonoMethod *method)
1758 MonoMethodSignature *sig, *csig;
1759 sig = mono_method_signature (method);
1760 /* we copy the signature, so that we can modify it */
1761 /* FIXME: which to use? */
1762 csig = mono_metadata_signature_dup_full (method->klass->image, sig);
1763 /* csig = mono_metadata_signature_dup (sig); */
1765 /* STDCALL on windows, CDECL everywhere else to work with XPCOM and MainWin COM */
1766 #ifdef PLATFORM_WIN32
1767 csig->call_convention = MONO_CALL_STDCALL;
1769 csig->call_convention = MONO_CALL_C;
1774 m->image = method->klass->image;
1782 * cominterop_get_ccw:
1783 * @object: a pointer to the object
1784 * @itf: interface type needed
1786 * Returns: a value indicating if the object is a
1787 * Runtime Callable Wrapper (RCW) for a COM object
1790 cominterop_get_ccw (MonoObject* object, MonoClass* itf)
1793 MonoCCW *ccw = NULL;
1794 MonoCCWInterface* ccw_entry = NULL;
1795 gpointer *vtable = NULL;
1796 static gpointer iunknown[3] = {NULL, NULL, NULL};
1797 static gpointer idispatch[4] = {NULL, NULL, NULL, NULL};
1798 MonoClass* iface = NULL;
1799 MonoClass* klass = NULL;
1800 EmitMarshalContext m;
1802 int method_count = 0;
1803 GList *ccw_list, *ccw_list_item;
1804 MonoCustomAttrInfo *cinfo = NULL;
1809 klass = mono_object_get_class (object);
1812 ccw_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
1813 if (!ccw_interface_hash)
1814 ccw_interface_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
1816 ccw_list = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
1818 ccw_list_item = ccw_list;
1819 while (ccw_list_item) {
1820 MonoCCW* ccw_iter = ccw_list_item->data;
1821 if (mono_gchandle_get_target (ccw_iter->gc_handle) == object) {
1825 ccw_list_item = g_list_next(ccw_list_item);
1828 if (!iunknown [0]) {
1829 iunknown [0] = cominterop_ccw_queryinterface;
1830 iunknown [1] = cominterop_ccw_addref;
1831 iunknown [2] = cominterop_ccw_release;
1834 if (!idispatch [0]) {
1835 idispatch [0] = cominterop_ccw_get_type_info_count;
1836 idispatch [1] = cominterop_ccw_get_type_info;
1837 idispatch [2] = cominterop_ccw_get_ids_of_names;
1838 idispatch [3] = cominterop_ccw_invoke;
1842 ccw = g_new0 (MonoCCW, 1);
1843 #ifdef PLATFORM_WIN32
1844 ccw->free_marshaler = 0;
1846 ccw->vtable_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
1848 /* just alloc a weak handle until we are addref'd*/
1849 ccw->gc_handle = mono_gchandle_new_weakref (object, FALSE);
1852 ccw_list = g_list_alloc ();
1853 ccw_list->data = ccw;
1856 ccw_list = g_list_append (ccw_list, ccw);
1857 g_hash_table_insert (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)), ccw_list);
1858 /* register for finalization to clean up ccw */
1859 mono_object_register_finalizer (object);
1862 cinfo = mono_custom_attrs_from_class (itf);
1864 static MonoClass* coclass_attribute = NULL;
1865 if (!coclass_attribute)
1866 coclass_attribute = mono_class_from_name (mono_defaults.corlib, "System.Runtime.InteropServices", "CoClassAttribute");
1867 if (mono_custom_attrs_has_attr (cinfo, coclass_attribute)) {
1868 g_assert(itf->interface_count && itf->interfaces[0]);
1869 itf = itf->interfaces[0];
1872 mono_custom_attrs_free (cinfo);
1876 if (iface == mono_defaults.iunknown_class) {
1879 else if (iface == mono_defaults.idispatch_class) {
1883 method_count += iface->method.count;
1884 start_slot = cominterop_get_com_slot_begin (iface);
1888 ccw_entry = g_hash_table_lookup (ccw->vtable_hash, itf);
1891 int vtable_index = method_count-1+start_slot;
1892 vtable = mono_image_alloc0 (klass->image, sizeof (gpointer)*(method_count+start_slot));
1893 memcpy (vtable, iunknown, sizeof (iunknown));
1894 if (start_slot == 7)
1895 memcpy (vtable+3, idispatch, sizeof (idispatch));
1898 for (i = iface->method.count-1; i >= 0;i--) {
1899 int param_index = 0;
1900 MonoMethodBuilder *mb;
1901 MonoMarshalSpec ** mspecs;
1902 MonoMethod *wrapper_method, *adjust_method;
1903 MonoMethod *method = iface->methods [i];
1904 MonoMethodSignature* sig_adjusted;
1905 MonoMethodSignature* sig = mono_method_signature (method);
1906 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
1909 mb = mono_mb_new (iface, method->name, MONO_WRAPPER_NATIVE_TO_MANAGED);
1910 adjust_method = cominterop_get_managed_wrapper_adjusted (method);
1911 sig_adjusted = mono_method_signature (adjust_method);
1913 mspecs = g_new (MonoMarshalSpec*, sig_adjusted->param_count + 1);
1914 mono_method_get_marshal_info (method, mspecs);
1917 /* move managed args up one */
1918 for (param_index = sig->param_count; param_index >= 1; param_index--) {
1919 int mspec_index = param_index+1;
1920 mspecs [mspec_index] = mspecs [param_index];
1922 if (mspecs[mspec_index] == NULL) {
1923 if (sig_adjusted->params[param_index]->type == MONO_TYPE_OBJECT) {
1924 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
1925 mspecs[mspec_index]->native = MONO_NATIVE_STRUCT;
1927 else if (sig_adjusted->params[param_index]->type == MONO_TYPE_STRING) {
1928 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
1929 mspecs[mspec_index]->native = MONO_NATIVE_BSTR;
1931 else if (sig_adjusted->params[param_index]->type == MONO_TYPE_CLASS) {
1932 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
1933 mspecs[mspec_index]->native = MONO_NATIVE_INTERFACE;
1935 else if (sig_adjusted->params[param_index]->type == MONO_NATIVE_BOOLEAN) {
1936 mspecs[mspec_index] = g_new0 (MonoMarshalSpec, 1);
1937 mspecs[mspec_index]->native = MONO_NATIVE_VARIANTBOOL;
1940 /* increase SizeParamIndex since we've added a param */
1941 if (sig_adjusted->params[param_index]->type == MONO_TYPE_ARRAY ||
1942 sig_adjusted->params[param_index]->type == MONO_TYPE_SZARRAY)
1943 if (mspecs[mspec_index]->data.array_data.param_num != -1)
1944 mspecs[mspec_index]->data.array_data.param_num++;
1948 /* first arg is IntPtr for interface */
1951 /* move return spec to last param */
1952 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret)) {
1953 if (mspecs [0] == NULL) {
1954 if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_TYPE_OBJECT) {
1955 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
1956 mspecs[0]->native = MONO_NATIVE_STRUCT;
1958 else if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_TYPE_STRING) {
1959 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
1960 mspecs[0]->native = MONO_NATIVE_BSTR;
1962 else if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_TYPE_CLASS) {
1963 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
1964 mspecs[0]->native = MONO_NATIVE_INTERFACE;
1966 else if (sig_adjusted->params[sig_adjusted->param_count-1]->type == MONO_NATIVE_BOOLEAN) {
1967 mspecs[0] = g_new0 (MonoMarshalSpec, 1);
1968 mspecs[0]->native = MONO_NATIVE_VARIANTBOOL;
1972 mspecs [sig_adjusted->param_count] = mspecs [0];
1976 /* skip visiblity since we call internal methods */
1977 mb->skip_visibility = TRUE;
1979 cominterop_setup_marshal_context (&m, adjust_method);
1981 mono_marshal_emit_managed_wrapper (mb, sig_adjusted, mspecs, &m, adjust_method, NULL);
1982 mono_loader_lock ();
1983 mono_cominterop_lock ();
1984 wrapper_method = mono_mb_create_method (mb, m.csig, m.csig->param_count + 16);
1985 mono_cominterop_unlock ();
1986 mono_loader_unlock ();
1988 vtable [vtable_index--] = mono_compile_method (wrapper_method);
1991 for (param_index = sig_adjusted->param_count; param_index >= 0; param_index--)
1992 if (mspecs [param_index])
1993 mono_metadata_free_marshal_spec (mspecs [param_index]);
1997 ccw_entry = g_new0 (MonoCCWInterface, 1);
1998 ccw_entry->ccw = ccw;
1999 ccw_entry->vtable = vtable;
2000 g_hash_table_insert (ccw->vtable_hash, itf, ccw_entry);
2001 g_hash_table_insert (ccw_interface_hash, ccw_entry, ccw);
2008 mono_marshal_free_ccw_entry (gpointer key, gpointer value, gpointer user_data)
2016 * mono_marshal_free_ccw:
2017 * @object: the mono object
2019 * Returns: whether the object had a CCW
2022 mono_marshal_free_ccw (MonoObject* object)
2024 GList *ccw_list, *ccw_list_orig, *ccw_list_item;
2025 /* no ccw's were created */
2026 if (!ccw_hash || g_hash_table_size (ccw_hash) == 0)
2029 /* need to cache orig list address to remove from hash_table if empty */
2030 mono_cominterop_lock ();
2031 ccw_list = ccw_list_orig = g_hash_table_lookup (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
2032 mono_cominterop_unlock ();
2037 ccw_list_item = ccw_list;
2038 while (ccw_list_item) {
2039 MonoCCW* ccw_iter = ccw_list_item->data;
2040 MonoObject* handle_target = mono_gchandle_get_target (ccw_iter->gc_handle);
2042 /* Looks like the GC NULLs the weakref handle target before running the
2043 * finalizer. So if we get a NULL target, destroy the CCW as well. */
2044 if (!handle_target || handle_target == object) {
2045 /* remove all interfaces */
2046 g_hash_table_foreach_remove (ccw_iter->vtable_hash, mono_marshal_free_ccw_entry, NULL);
2047 g_hash_table_destroy (ccw_iter->vtable_hash);
2049 /* get next before we delete */
2050 ccw_list_item = g_list_next(ccw_list_item);
2052 /* remove ccw from list */
2053 ccw_list = g_list_remove (ccw_list, ccw_iter);
2057 ccw_list_item = g_list_next(ccw_list_item);
2060 /* if list is empty remove original address from hash */
2061 if (g_list_length (ccw_list) == 0)
2062 g_hash_table_remove (ccw_hash, GINT_TO_POINTER (mono_object_hash (object)));
2069 * cominterop_get_managed_wrapper_adjusted:
2070 * @method: managed COM Interop method
2072 * Returns: the generated method to call with signature matching
2073 * the unmanaged COM Method signature
2076 cominterop_get_managed_wrapper_adjusted (MonoMethod *method)
2078 static MonoMethod *get_hr_for_exception = NULL;
2079 MonoMethod *res = NULL;
2080 MonoMethodBuilder *mb;
2081 MonoMarshalSpec **mspecs;
2082 MonoMethodSignature *sig, *sig_native;
2083 MonoExceptionClause *main_clause = NULL;
2087 gboolean preserve_sig = method->iflags & METHOD_IMPL_ATTRIBUTE_PRESERVE_SIG;
2089 if (!get_hr_for_exception)
2090 get_hr_for_exception = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetHRForException", -1);
2092 sig = mono_method_signature (method);
2094 /* create unmanaged wrapper */
2095 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_COMINTEROP);
2097 sig_native = cominterop_method_signature (method);
2099 mspecs = g_new0 (MonoMarshalSpec*, sig_native->param_count+1);
2101 mono_method_get_marshal_info (method, mspecs);
2103 /* move managed args up one */
2104 for (i = sig->param_count; i >= 1; i--)
2105 mspecs [i+1] = mspecs [i];
2107 /* first arg is IntPtr for interface */
2110 /* move return spec to last param */
2111 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
2112 mspecs [sig_native->param_count] = mspecs [0];
2116 if (!preserve_sig) {
2117 hr = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
2119 else if (!MONO_TYPE_IS_VOID (sig->ret))
2120 hr = mono_mb_add_local (mb, sig->ret);
2123 main_clause = g_new0 (MonoExceptionClause, 1);
2124 main_clause->try_offset = mono_mb_get_label (mb);
2126 /* load last param to store result if not preserve_sig and not void */
2127 if (!preserve_sig && !MONO_TYPE_IS_VOID (sig->ret))
2128 mono_mb_emit_ldarg (mb, sig_native->param_count-1);
2130 /* the CCW -> object conversion */
2131 mono_mb_emit_ldarg (mb, 0);
2132 mono_mb_emit_icon (mb, FALSE);
2133 mono_mb_emit_icall (mb, cominterop_get_ccw_object);
2135 for (i = 0; i < sig->param_count; i++)
2136 mono_mb_emit_ldarg (mb, i+1);
2138 mono_mb_emit_managed_call (mb, method, NULL);
2140 if (!MONO_TYPE_IS_VOID (sig->ret)) {
2142 mono_mb_emit_byte (mb, mono_type_to_stind (sig->ret));
2144 mono_mb_emit_stloc (mb, hr);
2147 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
2149 /* Main exception catch */
2150 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
2151 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
2152 main_clause->data.catch_class = mono_defaults.object_class;
2155 main_clause->handler_offset = mono_mb_get_label (mb);
2157 if (!preserve_sig || (sig->ret && !sig->ret->byref && (sig->ret->type == MONO_TYPE_U4 || sig->ret->type == MONO_TYPE_I4))) {
2158 mono_mb_emit_managed_call (mb, get_hr_for_exception, NULL);
2159 mono_mb_emit_stloc (mb, hr);
2162 mono_mb_emit_byte (mb, CEE_POP);
2165 mono_mb_emit_branch (mb, CEE_LEAVE);
2166 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
2169 mono_mb_set_clauses (mb, 1, main_clause);
2171 mono_mb_patch_branch (mb, pos_leave);
2173 if (!preserve_sig || !MONO_TYPE_IS_VOID (sig->ret))
2174 mono_mb_emit_ldloc (mb, hr);
2176 mono_mb_emit_byte (mb, CEE_RET);
2178 mono_loader_lock ();
2179 mono_cominterop_lock ();
2180 res = mono_mb_create_method (mb, sig_native, sig_native->param_count + 16);
2181 mono_cominterop_unlock ();
2182 mono_loader_unlock ();
2186 for (i = sig_native->param_count; i >= 0; i--)
2188 mono_metadata_free_marshal_spec (mspecs [i]);
2195 * cominterop_mono_string_to_guid:
2197 * Converts the standard string representation of a GUID
2198 * to a 16 byte Microsoft GUID.
2201 cominterop_mono_string_to_guid (const MonoString* string, guint8 *guid) {
2202 gunichar2 * chars = mono_string_chars (string);
2204 static guint8 indexes[16] = {7, 5, 3, 1, 12, 10, 17, 15, 20, 22, 25, 27, 29, 31, 33, 35};
2206 for (i = 0; i < sizeof(indexes); i++)
2207 guid [i] = g_unichar_xdigit_value (chars [indexes [i]]) + (g_unichar_xdigit_value (chars [indexes [i] - 1]) << 4);
2211 cominterop_class_guid_equal (guint8* guid, MonoClass* klass)
2213 guint8 klass_guid [16];
2214 if (cominterop_class_guid (klass, klass_guid))
2215 return !memcmp (guid, klass_guid, sizeof (klass_guid));
2220 cominterop_ccw_addref (MonoCCWInterface* ccwe)
2222 gint32 ref_count = 0;
2223 MonoCCW* ccw = ccwe->ccw;
2225 g_assert (ccw->gc_handle);
2226 g_assert (ccw->ref_count >= 0);
2227 ref_count = InterlockedIncrement ((gint32*)&ccw->ref_count);
2228 if (ref_count == 1) {
2229 guint32 oldhandle = ccw->gc_handle;
2230 g_assert (oldhandle);
2231 /* since we now have a ref count, alloc a strong handle*/
2232 ccw->gc_handle = mono_gchandle_new (mono_gchandle_get_target (oldhandle), FALSE);
2233 mono_gchandle_free (oldhandle);
2239 cominterop_ccw_release (MonoCCWInterface* ccwe)
2241 gint32 ref_count = 0;
2242 MonoCCW* ccw = ccwe->ccw;
2244 g_assert (ccw->ref_count > 0);
2245 ref_count = InterlockedDecrement ((gint32*)&ccw->ref_count);
2246 if (ref_count == 0) {
2247 /* allow gc of object */
2248 guint32 oldhandle = ccw->gc_handle;
2249 g_assert (oldhandle);
2250 #ifdef PLATFORM_WIN32
2251 if (ccw->free_marshaler)
2252 ves_icall_System_Runtime_InteropServices_Marshal_ReleaseInternal (ccw->free_marshaler);
2254 ccw->gc_handle = mono_gchandle_new_weakref (mono_gchandle_get_target (oldhandle), FALSE);
2255 mono_gchandle_free (oldhandle);
2260 #ifdef PLATFORM_WIN32
2261 static const IID MONO_IID_IMarshal = {0x3, 0x0, 0x0, {0xC0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x46}};
2264 #ifdef PLATFORM_WIN32
2265 /* All ccw objects are free threaded */
2267 cominterop_ccw_getfreethreadedmarshaler (MonoCCW* ccw, MonoObject* object, gpointer* ppv)
2269 #ifdef PLATFORM_WIN32
2270 if (!ccw->free_marshaler) {
2273 tunk = cominterop_get_ccw (object, mono_defaults.iunknown_class);
2274 /* remember to addref on QI */
2275 cominterop_ccw_addref (tunk);
2276 ret = CoCreateFreeThreadedMarshaler (tunk, (LPUNKNOWN*)&ccw->free_marshaler);
2277 cominterop_ccw_release(tunk);
2280 if (!ccw->free_marshaler)
2281 return MONO_E_NOINTERFACE;
2283 return ves_icall_System_Runtime_InteropServices_Marshal_QueryInterfaceInternal (ccw->free_marshaler, (IID*)&MONO_IID_IMarshal, ppv);
2285 return MONO_E_NOINTERFACE;
2291 cominterop_ccw_queryinterface (MonoCCWInterface* ccwe, guint8* riid, gpointer* ppv)
2294 MonoClass *itf = NULL;
2296 MonoCCW* ccw = ccwe->ccw;
2297 MonoClass* klass = NULL;
2298 MonoClass* klass_iter = NULL;
2299 MonoObject* object = mono_gchandle_get_target (ccw->gc_handle);
2302 klass = mono_object_class (object);
2307 if (!mono_domain_get ())
2308 mono_thread_attach (mono_get_root_domain ());
2310 /* handle IUnknown special */
2311 if (cominterop_class_guid_equal (riid, mono_defaults.iunknown_class)) {
2312 *ppv = cominterop_get_ccw (object, mono_defaults.iunknown_class);
2313 /* remember to addref on QI */
2314 cominterop_ccw_addref (*ppv);
2318 /* handle IDispatch special */
2319 if (cominterop_class_guid_equal (riid, mono_defaults.idispatch_class)) {
2320 if (!cominterop_can_support_dispatch (klass))
2321 return MONO_E_NOINTERFACE;
2323 *ppv = cominterop_get_ccw (object, mono_defaults.idispatch_class);
2324 /* remember to addref on QI */
2325 cominterop_ccw_addref (*ppv);
2329 #ifdef PLATFORM_WIN32
2330 /* handle IMarshal special */
2331 if (0 == memcmp (riid, &MONO_IID_IMarshal, sizeof (IID))) {
2332 return cominterop_ccw_getfreethreadedmarshaler (ccw, object, ppv);
2336 while (klass_iter && klass_iter != mono_defaults.object_class) {
2337 ifaces = mono_class_get_implemented_interfaces (klass_iter);
2339 for (i = 0; i < ifaces->len; ++i) {
2340 MonoClass *ic = NULL;
2341 ic = g_ptr_array_index (ifaces, i);
2342 if (cominterop_class_guid_equal (riid, ic)) {
2347 g_ptr_array_free (ifaces, TRUE);
2353 klass_iter = klass_iter->parent;
2356 *ppv = cominterop_get_ccw (object, itf);
2357 /* remember to addref on QI */
2358 cominterop_ccw_addref (*ppv);
2362 return MONO_E_NOINTERFACE;
2366 cominterop_ccw_get_type_info_count (MonoCCWInterface* ccwe, guint32 *pctinfo)
2368 return MONO_E_NOTIMPL;
2372 cominterop_ccw_get_type_info (MonoCCWInterface* ccwe, guint32 iTInfo, guint32 lcid, gpointer *ppTInfo)
2374 return MONO_E_NOTIMPL;
2378 cominterop_ccw_get_ids_of_names (MonoCCWInterface* ccwe, gpointer riid,
2379 gunichar2** rgszNames, guint32 cNames,
2380 guint32 lcid, gint32 *rgDispId)
2382 return MONO_E_NOTIMPL;
2386 cominterop_ccw_invoke (MonoCCWInterface* ccwe, guint32 dispIdMember,
2387 gpointer riid, guint32 lcid,
2388 guint16 wFlags, gpointer pDispParams,
2389 gpointer pVarResult, gpointer pExcepInfo,
2392 return MONO_E_NOTIMPL;
2395 typedef gpointer (STDCALL *SysAllocStringLenFunc)(gunichar* str, guint32 len);
2396 typedef guint32 (STDCALL *SysStringLenFunc)(gpointer bstr);
2397 typedef void (STDCALL *SysFreeStringFunc)(gunichar* str);
2399 static SysAllocStringLenFunc sys_alloc_string_len_ms = NULL;
2400 static SysStringLenFunc sys_string_len_ms = NULL;
2401 static SysFreeStringFunc sys_free_string_ms = NULL;
2403 typedef guint32 (STDCALL *SafeArrayGetDimFunc)(gpointer psa);
2404 typedef int (STDCALL *SafeArrayGetLBoundFunc)(gpointer psa, guint32 nDim, glong* plLbound);
2405 typedef int (STDCALL *SafeArrayGetUBoundFunc)(gpointer psa, guint32 nDim, glong* plUbound);
2406 typedef int (STDCALL *SafeArrayPtrOfIndexFunc)(gpointer psa, glong* rgIndices, gpointer* ppvData);
2407 typedef int (STDCALL *SafeArrayDestroyFunc)(gpointer psa);
2409 static SafeArrayGetDimFunc safe_array_get_dim_ms = NULL;
2410 static SafeArrayGetLBoundFunc safe_array_get_lbound_ms = NULL;
2411 static SafeArrayGetUBoundFunc safe_array_get_ubound_ms = NULL;
2412 static SafeArrayPtrOfIndexFunc safe_array_ptr_of_index_ms = NULL;
2413 static SafeArrayDestroyFunc safe_array_destroy_ms = NULL;
2416 init_com_provider_ms (void)
2418 static gboolean initialized = FALSE;
2420 MonoDl *module = NULL;
2421 const char* scope = "liboleaut32.so";
2426 module = mono_dl_open(scope, MONO_DL_LAZY, &error_msg);
2428 g_warning ("Error loading COM support library '%s': %s", scope, error_msg);
2429 g_assert_not_reached ();
2432 error_msg = mono_dl_symbol (module, "SysAllocStringLen", (gpointer*)&sys_alloc_string_len_ms);
2434 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysAllocStringLen", scope, error_msg);
2435 g_assert_not_reached ();
2439 error_msg = mono_dl_symbol (module, "SysStringLen", (gpointer*)&sys_string_len_ms);
2441 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysStringLen", scope, error_msg);
2442 g_assert_not_reached ();
2446 error_msg = mono_dl_symbol (module, "SysFreeString", (gpointer*)&sys_free_string_ms);
2448 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SysFreeString", scope, error_msg);
2449 g_assert_not_reached ();
2453 error_msg = mono_dl_symbol (module, "SafeArrayGetDim", (gpointer*)&safe_array_get_dim_ms);
2455 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SafeArrayGetDim", scope, error_msg);
2456 g_assert_not_reached ();
2460 error_msg = mono_dl_symbol (module, "SafeArrayGetLBound", (gpointer*)&safe_array_get_lbound_ms);
2462 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SafeArrayGetLBound", scope, error_msg);
2463 g_assert_not_reached ();
2467 error_msg = mono_dl_symbol (module, "SafeArrayGetUBound", (gpointer*)&safe_array_get_ubound_ms);
2469 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SafeArrayGetUBound", scope, error_msg);
2470 g_assert_not_reached ();
2474 error_msg = mono_dl_symbol (module, "SafeArrayPtrOfIndex", (gpointer*)&safe_array_ptr_of_index_ms);
2476 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SafeArrayPtrOfIndex", scope, error_msg);
2477 g_assert_not_reached ();
2481 error_msg = mono_dl_symbol (module, "SafeArrayDestroy", (gpointer*)&safe_array_destroy_ms);
2483 g_warning ("Error loading entry point '%s' in COM support library '%s': %s", "SafeArrayDestroy", scope, error_msg);
2484 g_assert_not_reached ();
2493 mono_string_to_bstr (MonoString *string_obj)
2497 #ifdef PLATFORM_WIN32
2498 return SysAllocStringLen (mono_string_chars (string_obj), mono_string_length (string_obj));
2500 if (com_provider == MONO_COM_DEFAULT) {
2501 int slen = mono_string_length (string_obj);
2502 /* allocate len + 1 utf16 characters plus 4 byte integer for length*/
2503 char *ret = g_malloc ((slen + 1) * sizeof(gunichar2) + sizeof(guint32));
2506 memcpy (ret + sizeof(guint32), mono_string_chars (string_obj), slen * sizeof(gunichar2));
2507 * ((guint32 *) ret) = slen * sizeof(gunichar2);
2508 ret [4 + slen * sizeof(gunichar2)] = 0;
2509 ret [5 + slen * sizeof(gunichar2)] = 0;
2512 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2513 gpointer ret = NULL;
2514 gunichar* str = NULL;
2516 len = mono_string_length (string_obj);
2517 str = g_utf16_to_ucs4 (mono_string_chars (string_obj), len,
2519 ret = sys_alloc_string_len_ms (str, len);
2523 g_assert_not_reached ();
2529 mono_string_from_bstr (gpointer bstr)
2533 #ifdef PLATFORM_WIN32
2534 return mono_string_new_utf16 (mono_domain_get (), bstr, SysStringLen (bstr));
2536 if (com_provider == MONO_COM_DEFAULT) {
2537 return mono_string_new_utf16 (mono_domain_get (), bstr, *((guint32 *)bstr - 1) / sizeof(gunichar2));
2538 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2539 MonoString* str = NULL;
2541 gunichar2* utf16 = NULL;
2543 utf16 = g_ucs4_to_utf16 (bstr, sys_string_len_ms (bstr), NULL, &written, NULL);
2544 str = mono_string_new_utf16 (mono_domain_get (), utf16, written);
2548 g_assert_not_reached ();
2555 mono_free_bstr (gpointer bstr)
2559 #ifdef PLATFORM_WIN32
2560 SysFreeString ((BSTR)bstr);
2562 if (com_provider == MONO_COM_DEFAULT) {
2563 g_free (((char *)bstr) - 4);
2564 } else if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2565 sys_free_string_ms (bstr);
2567 g_assert_not_reached ();
2574 /* SAFEARRAY marshalling */
2576 mono_cominterop_emit_marshal_safearray (EmitMarshalContext *m, int argnum, MonoType *t,
2577 MonoMarshalSpec *spec,
2578 int conv_arg, MonoType **conv_arg_type,
2579 MarshalAction action)
2581 MonoMethodBuilder *mb = m->mb;
2583 mono_init_com_types ();
2587 case MARSHAL_ACTION_CONV_OUT: {
2589 if (t->byref && (t->attrs & PARAM_ATTRIBUTE_OUT || !(t->attrs & PARAM_ATTRIBUTE_IN))) {
2591 /* Generates IL code for the following algorithm:
2593 Array result; // result_var
2594 IntPtr indices; // indices_var
2595 int empty; // empty_var
2596 if (mono_marshal_safearray_begin(safearray, out result, out indices, out empty)) {
2598 int index=0; // index_var
2600 object elem = Variant.GetObjectForNativeVariant(mono_marshal_safearray_get_value(safearray, indices));
2601 result.SetValueImpl(elem, index);
2604 while (mono_marshal_safearray_next(safearray, indices));
2606 mono_marshal_safearray_end(safearray, indices);
2610 int result_var, indices_var, empty_var, elem_var, index_var;
2611 guint32 label1 = 0, label2 = 0, label3 = 0;
2612 static MonoMethod *get_object_for_native_variant = NULL;
2613 static MonoMethod *set_value_impl = NULL;
2615 result_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2616 indices_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2617 empty_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2619 mono_mb_emit_ldloc (mb, conv_arg);
2620 mono_mb_emit_ldloc_addr (mb, result_var);
2621 mono_mb_emit_ldloc_addr (mb, indices_var);
2622 mono_mb_emit_ldloc_addr (mb, empty_var);
2623 mono_mb_emit_icall (mb, mono_marshal_safearray_begin);
2625 label1 = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
2627 mono_mb_emit_ldloc (mb, empty_var);
2629 label2 = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
2631 index_var = mono_mb_add_local (mb, &mono_defaults.int_class->byval_arg);
2632 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
2633 mono_mb_emit_stloc (mb, index_var);
2635 label3 = mono_mb_get_label (mb);
2637 mono_mb_emit_ldloc (mb, conv_arg);
2638 mono_mb_emit_ldloc (mb, indices_var);
2639 mono_mb_emit_icall (mb, mono_marshal_safearray_get_value);
2641 if (!get_object_for_native_variant)
2642 get_object_for_native_variant = mono_class_get_method_from_name (mono_defaults.marshal_class, "GetObjectForNativeVariant", 1);
2643 g_assert (get_object_for_native_variant);
2645 if (!set_value_impl)
2646 set_value_impl = mono_class_get_method_from_name (mono_defaults.array_class, "SetValueImpl", 2);
2647 g_assert (set_value_impl);
2649 elem_var = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
2651 mono_mb_emit_managed_call (mb, get_object_for_native_variant, NULL);
2652 mono_mb_emit_stloc (mb, elem_var);
2654 mono_mb_emit_ldloc (mb, result_var);
2655 mono_mb_emit_ldloc (mb, elem_var);
2656 mono_mb_emit_ldloc (mb, index_var);
2657 mono_mb_emit_managed_call (mb, set_value_impl, NULL);
2659 mono_mb_emit_add_to_local (mb, index_var, 1);
2661 mono_mb_emit_ldloc (mb, conv_arg);
2662 mono_mb_emit_ldloc (mb, indices_var);
2663 mono_mb_emit_icall (mb, mono_marshal_safearray_next);
2664 mono_mb_emit_branch_label (mb, CEE_BRTRUE, label3);
2666 mono_mb_patch_short_branch (mb, label2);
2668 mono_mb_emit_ldloc (mb, conv_arg);
2669 mono_mb_emit_ldloc (mb, indices_var);
2670 mono_mb_emit_icall (mb, mono_marshal_safearray_end);
2672 mono_mb_patch_short_branch (mb, label1);
2674 mono_mb_emit_ldarg (mb, argnum);
2675 mono_mb_emit_ldloc (mb, result_var);
2676 mono_mb_emit_byte (mb, CEE_STIND_REF);
2682 g_assert_not_reached ();
2689 guint32 mono_marshal_safearray_get_dim (gpointer safearray)
2692 #ifdef PLATFORM_WIN32
2693 result = SafeArrayGetDim (safearray);
2695 if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2696 result = safe_array_get_dim_ms (safearray);
2698 g_assert_not_reached ();
2705 int mono_marshal_safe_array_get_lbound (gpointer psa, guint nDim, glong* plLbound)
2707 int result=MONO_S_OK;
2708 #ifdef PLATFORM_WIN32
2709 result = SafeArrayGetLBound (psa, nDim, plLbound);
2711 if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2712 result = safe_array_get_lbound_ms (psa, nDim, plLbound);
2714 g_assert_not_reached ();
2721 int mono_marshal_safe_array_get_ubound (gpointer psa, guint nDim, glong* plUbound)
2723 int result=MONO_S_OK;
2724 #ifdef PLATFORM_WIN32
2725 result = SafeArrayGetUBound (psa, nDim, plUbound);
2727 if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2728 result = safe_array_get_ubound_ms (psa, nDim, plUbound);
2730 g_assert_not_reached ();
2737 mono_marshal_safearray_begin (gpointer safearray, MonoArray **result, gpointer *indices, gpointer empty)
2740 mono_array_size_t *sizes;
2741 mono_array_size_t *bounds;
2744 gboolean bounded = FALSE;
2746 #ifndef PLATFORM_WIN32
2747 // If not on windows, check that the MS provider is used as it is
2748 // required for SAFEARRAY support.
2749 // If SAFEARRAYs are not supported, returning FALSE from this
2750 // function will prevent the other mono_marshal_safearray_xxx functions
2751 // from being called.
2752 if ((com_provider != MONO_COM_MS) || !init_com_provider_ms ()) {
2757 dim = mono_marshal_safearray_get_dim (safearray);
2759 *indices = g_malloc (dim * sizeof(int));
2761 sizes = alloca (dim * sizeof(mono_array_size_t));
2762 bounds = alloca (dim * sizeof(mono_array_size_t));
2764 (*(int*)empty) = TRUE;
2765 for (i=0; i<dim; ++i) {
2766 glong lbound, ubound;
2770 hr = mono_marshal_safe_array_get_lbound (safearray, i+1, &lbound);
2772 cominterop_raise_hr_exception (hr);
2776 hr = mono_marshal_safe_array_get_ubound (safearray, i+1, &ubound);
2778 cominterop_raise_hr_exception (hr);
2780 cursize = ubound-lbound+1;
2781 sizes [i] = cursize;
2782 bounds [i] = lbound;
2784 ((int*)*indices) [i] = lbound;
2787 (*(int*)empty) = FALSE;
2790 aklass = mono_bounded_array_class_get (mono_defaults.object_class, dim, bounded);
2791 *result = mono_array_new_full (mono_domain_get (), aklass, sizes, bounds);
2797 gpointer mono_marshal_safearray_get_value (gpointer safearray, gpointer indices)
2800 #ifdef PLATFORM_WIN32
2801 int hr = SafeArrayPtrOfIndex (safearray, indices, &result);
2803 cominterop_raise_hr_exception (hr);
2806 if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2807 int hr = safe_array_ptr_of_index_ms (safearray, indices, &result);
2809 cominterop_raise_hr_exception (hr);
2812 g_assert_not_reached ();
2819 gboolean mono_marshal_safearray_next (gpointer safearray, gpointer indices)
2822 int dim = mono_marshal_safearray_get_dim (safearray);
2824 int *pIndices = (int*) indices;
2827 for (i=dim-1; i>=0; --i)
2829 glong lbound, ubound;
2831 hr = mono_marshal_safe_array_get_ubound (safearray, i+1, &ubound);
2833 cominterop_raise_hr_exception (hr);
2836 if (++pIndices[i] <= ubound) {
2840 hr = mono_marshal_safe_array_get_lbound (safearray, i+1, &lbound);
2842 cominterop_raise_hr_exception (hr);
2845 pIndices[i] = lbound;
2854 void mono_marshal_safearray_end (gpointer safearray, gpointer indices)
2857 #ifdef PLATFORM_WIN32
2858 SafeArrayDestroy (safearray);
2860 if (com_provider == MONO_COM_MS && init_com_provider_ms ()) {
2861 safe_array_destroy_ms (safearray);
2863 g_assert_not_reached ();
2868 #else /* DISABLE_COM */
2871 mono_cominterop_init (void)
2876 mono_cominterop_cleanup (void)
2881 cominterop_release_all_rcws (void)
2886 mono_marshal_free_ccw (MonoObject* object)
2892 mono_string_to_bstr (MonoString *string_obj)
2894 g_assert_not_reached ();
2899 mono_string_from_bstr (gpointer bstr)
2901 g_assert_not_reached ();
2906 mono_free_bstr (gpointer bstr)
2908 g_assert_not_reached ();
2911 #endif /* DISABLE_COM */