2 * remoting.c: Remoting support
4 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
5 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
6 * Copyright 2011-2014 Xamarin, Inc (http://www.xamarin.com)
12 #include "mono/metadata/remoting.h"
13 #include "mono/metadata/marshal.h"
14 #include "mono/metadata/abi-details.h"
15 #include "mono/metadata/cominterop.h"
16 #include "mono/metadata/tabledefs.h"
17 #include "mono/metadata/exception.h"
18 #include "mono/metadata/debug-helpers.h"
21 MONO_MARSHAL_NONE, /* No marshalling needed */
22 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
23 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
24 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
25 } MonoXDomainMarshalType;
27 #ifndef DISABLE_REMOTING
29 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
33 #include "mono/cil/opcode.def"
38 struct _MonoRemotingMethods {
40 MonoMethod *invoke_with_check;
41 MonoMethod *xdomain_invoke;
42 MonoMethod *xdomain_dispatch;
45 typedef struct _MonoRemotingMethods MonoRemotingMethods;
48 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
51 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
54 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
57 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
59 static MonoXDomainMarshalType
60 mono_get_xdomain_marshal_type (MonoType *t);
63 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
65 static MonoReflectionType *
66 type_from_handle (MonoType *handle);
68 static mono_mutex_t remoting_mutex;
69 static gboolean remoting_mutex_inited;
71 static MonoClass *byte_array_class;
73 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
74 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
78 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
80 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
82 mono_register_jit_icall (func, name, sig, save);
88 g_assert (remoting_mutex_inited);
89 mono_os_mutex_lock (&remoting_mutex);
93 remoting_unlock (void)
95 g_assert (remoting_mutex_inited);
96 mono_os_mutex_unlock (&remoting_mutex);
100 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
103 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
109 g_hash_table_new (hash_func, equal_func);
110 mono_memory_barrier ();
119 get_cache_full (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func, GDestroyNotify key_destroy_func, GDestroyNotify value_destroy_func)
125 g_hash_table_new_full (hash_func, equal_func, key_destroy_func, value_destroy_func);
126 mono_memory_barrier ();
135 mono_remoting_init (void)
137 mono_os_mutex_init (&remoting_mutex);
138 remoting_mutex_inited = TRUE;
142 mono_remoting_marshal_init (void)
146 static gboolean module_initialized = FALSE;
147 static gboolean icalls_registered = FALSE;
149 if (module_initialized)
152 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
155 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
156 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
157 g_assert (method_rs_serialize);
158 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
159 g_assert (method_rs_deserialize);
160 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
161 g_assert (method_rs_serialize_exc);
163 klass = mono_defaults.real_proxy_class;
164 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
165 g_assert (method_rs_appdomain_target);
167 klass = mono_defaults.exception_class;
168 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
169 g_assert (method_exc_fixexc);
171 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
172 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
173 g_assert (method_set_call_context);
175 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
176 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
177 g_assert (method_needs_context_sink);
182 if (!icalls_registered) {
183 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
184 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
185 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
186 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
187 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
188 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
189 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
192 icalls_registered = TRUE;
194 mono_loader_unlock ();
196 module_initialized = TRUE;
199 static MonoReflectionType *
200 type_from_handle (MonoType *handle)
202 MonoDomain *domain = mono_domain_get ();
203 MonoClass *klass = mono_class_from_mono_type (handle);
205 mono_class_init (klass);
206 return mono_type_get_object (domain, handle);
211 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
214 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
215 mono_mb_emit_byte (mb, CEE_LDIND_I);
216 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
217 mono_mb_emit_byte (mb, CEE_ADD);
218 mono_mb_emit_byte (mb, CEE_LDIND_I);
219 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
220 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
221 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
222 pos = mono_mb_emit_branch (mb, branch_code);
227 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
230 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
231 mono_mb_emit_byte (mb, CEE_LDIND_REF);
232 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
233 mono_mb_emit_byte (mb, CEE_LDIND_I4);
234 mono_mb_emit_icon (mb, -1);
235 pos = mono_mb_emit_branch (mb, branch_code);
240 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
242 static int offset = -1;
246 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
248 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
249 mono_mb_emit_byte (mb, CEE_LDIND_REF);
250 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
251 mono_mb_emit_byte (mb, CEE_LDIND_REF);
252 mono_mb_emit_ldflda (mb, offset);
253 mono_mb_emit_byte (mb, CEE_LDIND_U1);
254 mono_mb_emit_icon (mb, mask);
255 mono_mb_emit_byte (mb, CEE_AND);
256 mono_mb_emit_icon (mb, 0);
257 return mono_mb_emit_branch (mb, branch_code);
259 #endif /* !DISABLE_JIT */
261 static inline MonoMethod*
262 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
264 MonoMethod *res = NULL;
265 MonoRemotingMethods *wrps = NULL;
267 mono_marshal_lock_internal ();
268 if (mono_method_get_wrapper_cache (method)->remoting_invoke_cache)
269 wrps = g_hash_table_lookup (mono_method_get_wrapper_cache (method)->remoting_invoke_cache, method);
272 switch (wrapper_type) {
273 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
274 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
275 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
276 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
280 /* it is important to do the unlock after the load from wrps, since in
281 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
282 * to take the loader lock and some other thread may set the fields.
284 mono_marshal_unlock_internal ();
288 /* Create the method from the builder and place it in the cache */
289 static inline MonoMethod*
290 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
291 MonoMethodSignature *sig, int max_stack, WrapperInfo *info)
293 MonoMethod **res = NULL;
294 MonoRemotingMethods *wrps;
297 cache = get_cache_full (&mono_method_get_wrapper_cache (key)->remoting_invoke_cache, mono_aligned_addr_hash, NULL, NULL, g_free);
299 mono_marshal_lock_internal ();
300 wrps = g_hash_table_lookup (cache, key);
302 wrps = g_new0 (MonoRemotingMethods, 1);
303 g_hash_table_insert (cache, key, wrps);
306 switch (mb->method->wrapper_type) {
307 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
308 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
309 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
310 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
311 default: g_assert_not_reached (); break;
313 mono_marshal_unlock_internal ();
317 newm = mono_mb_create_method (mb, sig, max_stack);
319 mono_marshal_lock_internal ();
322 mono_marshal_set_wrapper_info (*res, info);
323 mono_marshal_unlock_internal ();
325 mono_marshal_unlock_internal ();
326 mono_free_method (newm);
334 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
336 MonoMethodMessage *msg;
337 MonoTransparentProxy *this_obj;
338 MonoObject *res, *exc;
341 this_obj = *((MonoTransparentProxy **)params [0]);
344 g_assert (((MonoObject *)this_obj)->vtable->klass == mono_defaults.transparent_proxy_class);
346 /* skip the this pointer */
349 if (mono_class_is_contextbound (this_obj->remote_class->proxy_class) && this_obj->rp->context == (MonoObject *) mono_context_get ())
352 MonoMethodSignature *sig = mono_method_signature (method);
353 int count = sig->param_count;
354 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
356 for (i=0; i<count; i++) {
357 MonoClass *klass = mono_class_from_mono_type (sig->params [i]);
358 if (klass->valuetype) {
359 if (sig->params [i]->byref) {
360 mparams[i] = *((gpointer *)params [i]);
362 /* runtime_invoke expects a boxed instance */
363 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
364 mparams[i] = mono_nullable_box (params [i], klass);
366 mparams[i] = params [i];
369 mparams[i] = *((gpointer**)params [i]);
373 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this_obj): this_obj, mparams, NULL);
376 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
378 res = mono_remoting_invoke ((MonoObject *)this_obj->rp, msg, &exc, &out_args);
381 mono_raise_exception ((MonoException *)exc);
383 mono_method_return_message_restore (method, params, out_args);
389 mono_marshal_get_remoting_invoke (MonoMethod *method)
391 MonoMethodSignature *sig;
392 MonoMethodBuilder *mb;
399 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
402 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
404 if (mono_class_is_com_object (method->klass) || method->klass == mono_class_get_com_object_class ()) {
405 MonoVTable *vtable = mono_class_vtable (mono_domain_get (), method->klass);
406 g_assert (vtable); /*FIXME do proper error handling*/
408 if (!mono_vtable_is_remote (vtable)) {
409 return mono_cominterop_get_invoke (method);
414 sig = mono_signature_no_pinvoke (method);
416 /* we cant remote methods without this pointer */
420 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
423 mono_remoting_marshal_init ();
425 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
428 mb->method->save_lmf = 1;
430 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
432 mono_mb_emit_ptr (mb, method);
433 mono_mb_emit_ldloc (mb, params_var);
434 mono_mb_emit_icall (mb, mono_remoting_wrapper);
435 mono_marshal_emit_thread_interrupt_checkpoint (mb);
437 if (sig->ret->type == MONO_TYPE_VOID) {
438 mono_mb_emit_byte (mb, CEE_POP);
439 mono_mb_emit_byte (mb, CEE_RET);
441 mono_mb_emit_restore_result (mb, sig->ret);
445 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
446 info->d.remoting.method = method;
447 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16, info);
453 /* mono_marshal_xdomain_copy_out_value()
454 * Copies the contents of the src instance into the dst instance. src and dst
455 * must have the same type, and if they are arrays, the same size.
458 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
460 if (src == NULL || dst == NULL) return;
462 g_assert (mono_object_class (src) == mono_object_class (dst));
464 switch (mono_object_class (src)->byval_arg.type) {
465 case MONO_TYPE_ARRAY:
466 case MONO_TYPE_SZARRAY: {
467 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
468 if (mt == MONO_MARSHAL_SERIALIZE) return;
469 if (mt == MONO_MARSHAL_COPY) {
470 int i, len = mono_array_length ((MonoArray *)dst);
471 for (i = 0; i < len; i++) {
472 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
473 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
476 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
487 #if !defined (DISABLE_JIT)
489 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
491 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
492 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
496 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
498 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
502 /* mono_marshal_supports_fast_xdomain()
503 * Returns TRUE if the method can use the fast xdomain wrapper.
506 mono_marshal_supports_fast_xdomain (MonoMethod *method)
508 return !mono_class_is_contextbound (method->klass) &&
509 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
513 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
515 MonoDomain *current_domain = mono_domain_get ();
516 MonoDomain *domain = mono_domain_get_by_id (id);
518 if (!domain || !mono_domain_set (domain, FALSE))
519 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
522 mono_thread_push_appdomain_ref (domain);
524 mono_thread_pop_appdomain_ref ();
526 return current_domain->domain_id;
529 #if !defined (DISABLE_JIT)
531 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
533 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
536 /* mono_marshal_emit_load_domain_method ()
537 * Loads into the stack a pointer to the code of the provided method for
538 * the current domain.
541 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
543 /* We need a pointer to the method for the running domain (not the domain
544 * that compiles the method).
546 mono_mb_emit_ptr (mb, method);
547 mono_mb_emit_icall (mb, mono_compile_method);
551 /* mono_marshal_check_domain_image ()
552 * Returns TRUE if the image is loaded in the specified
553 * application domain.
556 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
561 MonoDomain *domain = mono_domain_get_by_id (domain_id);
565 mono_domain_assemblies_lock (domain);
566 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
568 if (ass->image == image)
571 mono_domain_assemblies_unlock (domain);
576 /* mono_marshal_get_xappdomain_dispatch ()
577 * Generates a method that dispatches a method call from another domain into
578 * the current domain.
581 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
583 MonoMethodSignature *sig, *csig;
584 MonoMethodBuilder *mb;
586 int i, j, param_index, copy_locals_base;
587 MonoClass *ret_class = NULL;
588 int loc_array=0, loc_return=0, loc_serialized_exc=0;
589 MonoExceptionClause *main_clause;
591 gboolean copy_return;
594 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
597 sig = mono_method_signature (method);
598 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
601 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
602 csig->params [j++] = &mono_defaults.object_class->byval_arg;
603 csig->params [j++] = &byte_array_class->this_arg;
604 csig->params [j++] = &byte_array_class->this_arg;
605 for (i = 0; i < sig->param_count; i++) {
606 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
607 csig->params [j++] = sig->params [i];
610 csig->ret = sig->ret;
612 csig->ret = &mono_defaults.void_class->byval_arg;
614 csig->hasthis = FALSE;
616 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
617 mb->method->save_lmf = 1;
622 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
623 if (complex_count > 0)
624 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
625 if (sig->ret->type != MONO_TYPE_VOID) {
626 loc_return = mono_mb_add_local (mb, sig->ret);
627 ret_class = mono_class_from_mono_type (sig->ret);
632 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
633 main_clause->try_offset = mono_mb_get_label (mb);
635 /* Clean the call context */
637 mono_mb_emit_byte (mb, CEE_LDNULL);
638 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
639 mono_mb_emit_byte (mb, CEE_POP);
641 /* Deserialize call data */
643 mono_mb_emit_ldarg (mb, 1);
644 mono_mb_emit_byte (mb, CEE_LDIND_REF);
645 mono_mb_emit_byte (mb, CEE_DUP);
646 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
648 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
649 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
651 if (complex_count > 0)
652 mono_mb_emit_stloc (mb, loc_array);
654 mono_mb_emit_byte (mb, CEE_POP);
656 mono_mb_patch_short_branch (mb, pos);
658 /* Get the target object */
660 mono_mb_emit_ldarg (mb, 0);
661 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
663 /* Load the arguments */
665 copy_locals_base = mb->locals;
666 param_index = 3; // Index of the first non-serialized parameter of this wrapper
668 for (i = 0; i < sig->param_count; i++) {
669 MonoType *pt = sig->params [i];
670 MonoClass *pclass = mono_class_from_mono_type (pt);
671 switch (marshal_types [i]) {
672 case MONO_MARSHAL_SERIALIZE: {
673 /* take the value from the serialized array */
674 mono_mb_emit_ldloc (mb, loc_array);
675 mono_mb_emit_icon (mb, j++);
677 if (pclass->valuetype) {
678 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
679 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
681 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
684 if (pclass->valuetype) {
685 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
686 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
687 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
689 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
690 if (pclass != mono_defaults.object_class) {
691 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
697 case MONO_MARSHAL_COPY_OUT: {
698 /* Keep a local copy of the value since we need to copy it back after the call */
699 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
700 mono_mb_emit_ldarg (mb, param_index++);
701 mono_marshal_emit_xdomain_copy_value (mb, pclass);
702 mono_mb_emit_byte (mb, CEE_DUP);
703 mono_mb_emit_stloc (mb, copy_local);
706 case MONO_MARSHAL_COPY: {
707 mono_mb_emit_ldarg (mb, param_index);
709 mono_mb_emit_byte (mb, CEE_DUP);
710 mono_mb_emit_byte (mb, CEE_DUP);
711 mono_mb_emit_byte (mb, CEE_LDIND_REF);
712 mono_marshal_emit_xdomain_copy_value (mb, pclass);
713 mono_mb_emit_byte (mb, CEE_STIND_REF);
715 mono_marshal_emit_xdomain_copy_value (mb, pclass);
720 case MONO_MARSHAL_NONE:
721 mono_mb_emit_ldarg (mb, param_index++);
726 /* Make the call to the real object */
728 mono_marshal_emit_thread_force_interrupt_checkpoint (mb);
730 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
732 if (sig->ret->type != MONO_TYPE_VOID)
733 mono_mb_emit_stloc (mb, loc_return);
735 /* copy back MONO_MARSHAL_COPY_OUT parameters */
739 for (i = 0; i < sig->param_count; i++) {
740 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
741 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
742 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
743 mono_mb_emit_ldarg (mb, param_index);
744 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
749 /* Serialize the return values */
751 if (complex_out_count > 0) {
752 /* Reset parameters in the array that don't need to be serialized back */
754 for (i = 0; i < sig->param_count; i++) {
755 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
756 if (!sig->params [i]->byref) {
757 mono_mb_emit_ldloc (mb, loc_array);
758 mono_mb_emit_icon (mb, j);
759 mono_mb_emit_byte (mb, CEE_LDNULL);
760 mono_mb_emit_byte (mb, CEE_STELEM_REF);
765 /* Add the return value to the array */
767 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
768 mono_mb_emit_ldloc (mb, loc_array);
769 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
770 mono_mb_emit_ldloc (mb, loc_return);
772 g_assert (ret_class); /*FIXME properly fail here*/
773 if (ret_class->valuetype) {
774 mono_mb_emit_op (mb, CEE_BOX, ret_class);
776 mono_mb_emit_byte (mb, CEE_STELEM_REF);
781 mono_mb_emit_ldarg (mb, 1);
782 mono_mb_emit_ldloc (mb, loc_array);
783 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
784 mono_mb_emit_byte (mb, CEE_STIND_REF);
785 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
786 mono_mb_emit_ldarg (mb, 1);
787 mono_mb_emit_ldloc (mb, loc_return);
788 if (ret_class->valuetype) {
789 mono_mb_emit_op (mb, CEE_BOX, ret_class);
791 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
792 mono_mb_emit_byte (mb, CEE_STIND_REF);
794 mono_mb_emit_ldarg (mb, 1);
795 mono_mb_emit_byte (mb, CEE_LDNULL);
796 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
797 mono_mb_emit_byte (mb, CEE_STIND_REF);
800 mono_mb_emit_ldarg (mb, 2);
801 mono_mb_emit_byte (mb, CEE_LDNULL);
802 mono_mb_emit_byte (mb, CEE_STIND_REF);
803 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
805 /* Main exception catch */
806 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
807 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
808 main_clause->data.catch_class = mono_defaults.object_class;
811 main_clause->handler_offset = mono_mb_get_label (mb);
812 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
813 mono_mb_emit_stloc (mb, loc_serialized_exc);
814 mono_mb_emit_ldarg (mb, 2);
815 mono_mb_emit_ldloc (mb, loc_serialized_exc);
816 mono_mb_emit_byte (mb, CEE_STIND_REF);
817 mono_mb_emit_branch (mb, CEE_LEAVE);
818 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
821 mono_mb_patch_branch (mb, pos_leave);
824 mono_mb_emit_ldloc (mb, loc_return);
826 mono_mb_emit_byte (mb, CEE_RET);
828 mono_mb_set_clauses (mb, 1, main_clause);
831 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
832 info->d.remoting.method = method;
833 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16, info);
839 /* mono_marshal_get_xappdomain_invoke ()
840 * Generates a fast remoting wrapper for cross app domain calls.
843 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
845 MonoMethodSignature *sig;
846 MonoMethodBuilder *mb;
848 int i, j, complex_count, complex_out_count, copy_locals_base;
850 MonoClass *ret_class = NULL;
851 MonoMethod *xdomain_method;
852 int ret_marshal_type = MONO_MARSHAL_NONE;
853 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
854 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
855 int pos, pos_dispatch, pos_noex;
856 gboolean copy_return = FALSE;
861 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
864 /* we cant remote methods without this pointer */
865 if (!mono_method_signature (method)->hasthis)
868 mono_remoting_marshal_init ();
870 if (!mono_marshal_supports_fast_xdomain (method))
871 return mono_marshal_get_remoting_invoke (method);
873 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
876 sig = mono_signature_no_pinvoke (method);
878 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
879 mb->method->save_lmf = 1;
881 /* Count the number of parameters that need to be serialized */
883 marshal_types = alloca (sizeof (int) * sig->param_count);
884 complex_count = complex_out_count = 0;
885 for (i = 0; i < sig->param_count; i++) {
886 MonoType *ptype = sig->params[i];
887 int mt = mono_get_xdomain_marshal_type (ptype);
889 /* If the [Out] attribute is applied to a parameter that can be internally copied,
890 * the copy will be made by reusing the original object instance
892 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
893 mt = MONO_MARSHAL_COPY_OUT;
894 else if (mt == MONO_MARSHAL_SERIALIZE) {
896 if (ptype->byref) complex_out_count++;
898 marshal_types [i] = mt;
901 if (sig->ret->type != MONO_TYPE_VOID) {
902 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
903 ret_class = mono_class_from_mono_type (sig->ret);
904 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
910 if (complex_count > 0)
911 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
912 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
913 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
915 loc_return = mono_mb_add_local (mb, sig->ret);
916 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
917 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
918 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
919 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
921 /* Save thread domain data */
923 mono_mb_emit_icall (mb, mono_context_get);
924 mono_mb_emit_byte (mb, CEE_DUP);
925 mono_mb_emit_stloc (mb, loc_context);
927 /* If the thread is not running in the default context, it needs to go
928 * through the whole remoting sink, since the context is going to change
930 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
931 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
933 /* Another case in which the fast path can't be used: when the target domain
934 * has a different image for the same assembly.
937 /* Get the target domain id */
939 mono_mb_emit_ldarg (mb, 0);
940 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
941 mono_mb_emit_byte (mb, CEE_LDIND_REF);
942 mono_mb_emit_byte (mb, CEE_DUP);
943 mono_mb_emit_stloc (mb, loc_real_proxy);
945 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
946 mono_mb_emit_byte (mb, CEE_LDIND_I4);
947 mono_mb_emit_stloc (mb, loc_domainid);
949 /* Check if the target domain has the same image for the required assembly */
951 mono_mb_emit_ldloc (mb, loc_domainid);
952 mono_mb_emit_ptr (mb, method->klass->image);
953 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
954 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
956 /* Use the whole remoting sink to dispatch this message */
958 mono_mb_patch_short_branch (mb, pos);
960 mono_mb_emit_ldarg (mb, 0);
961 for (i = 0; i < sig->param_count; i++)
962 mono_mb_emit_ldarg (mb, i + 1);
964 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
965 mono_mb_emit_byte (mb, CEE_RET);
966 mono_mb_patch_short_branch (mb, pos_dispatch);
968 /* Create the array that will hold the parameters to be serialized */
970 if (complex_count > 0) {
971 mono_mb_emit_icon (mb, (ret_marshal_type == MONO_MARSHAL_SERIALIZE && complex_out_count > 0) ? complex_count + 1 : complex_count); /* +1 for the return type */
972 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
975 for (i = 0; i < sig->param_count; i++) {
977 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
978 pclass = mono_class_from_mono_type (sig->params[i]);
979 mono_mb_emit_byte (mb, CEE_DUP);
980 mono_mb_emit_icon (mb, j);
981 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
982 if (sig->params[i]->byref) {
983 if (pclass->valuetype)
984 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
986 mono_mb_emit_byte (mb, CEE_LDIND_REF);
988 if (pclass->valuetype)
989 mono_mb_emit_op (mb, CEE_BOX, pclass);
990 mono_mb_emit_byte (mb, CEE_STELEM_REF);
993 mono_mb_emit_stloc (mb, loc_array);
995 /* Serialize parameters */
997 mono_mb_emit_ldloc (mb, loc_array);
998 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
999 mono_mb_emit_stloc (mb, loc_serialized_data);
1001 mono_mb_emit_byte (mb, CEE_LDNULL);
1002 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
1003 mono_mb_emit_stloc (mb, loc_serialized_data);
1008 mono_mb_emit_ldloc (mb, loc_domainid);
1009 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1010 mono_marshal_emit_switch_domain (mb);
1011 mono_mb_emit_stloc (mb, loc_old_domainid);
1013 /* Load the arguments */
1015 mono_mb_emit_ldloc (mb, loc_real_proxy);
1016 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
1017 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
1019 copy_locals_base = mb->locals;
1020 for (i = 0; i < sig->param_count; i++) {
1021 switch (marshal_types [i]) {
1022 case MONO_MARSHAL_SERIALIZE:
1024 case MONO_MARSHAL_COPY: {
1025 mono_mb_emit_ldarg (mb, i+1);
1026 if (sig->params [i]->byref) {
1027 /* make a local copy of the byref parameter. The real parameter
1028 * will be updated after the xdomain call
1030 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
1031 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
1032 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1033 mono_mb_emit_stloc (mb, copy_local);
1034 mono_mb_emit_ldloc_addr (mb, copy_local);
1038 case MONO_MARSHAL_COPY_OUT:
1039 case MONO_MARSHAL_NONE:
1040 mono_mb_emit_ldarg (mb, i+1);
1045 /* Make the call to the invoke wrapper in the target domain */
1047 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
1048 mono_marshal_emit_load_domain_method (mb, xdomain_method);
1049 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
1052 mono_mb_emit_stloc (mb, loc_return);
1056 mono_mb_emit_ldloc (mb, loc_old_domainid);
1057 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1058 mono_marshal_emit_switch_domain (mb);
1059 mono_mb_emit_byte (mb, CEE_POP);
1061 /* Restore thread domain data */
1063 mono_mb_emit_ldloc (mb, loc_context);
1064 mono_mb_emit_icall (mb, mono_context_set);
1066 /* if (loc_serialized_exc != null) ... */
1068 mono_mb_emit_ldloc (mb, loc_serialized_exc);
1069 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1071 mono_mb_emit_ldloc (mb, loc_serialized_exc);
1072 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
1073 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
1074 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
1075 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
1076 mono_mb_emit_byte (mb, CEE_THROW);
1077 mono_mb_patch_short_branch (mb, pos_noex);
1079 /* copy back non-serialized output parameters */
1082 for (i = 0; i < sig->param_count; i++) {
1083 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
1084 mono_mb_emit_ldarg (mb, i + 1);
1085 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
1086 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
1087 mono_mb_emit_byte (mb, CEE_STIND_REF);
1090 /* Deserialize out parameters */
1092 if (complex_out_count > 0) {
1093 mono_mb_emit_ldloc (mb, loc_serialized_data);
1094 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
1095 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
1096 mono_mb_emit_stloc (mb, loc_array);
1098 /* Copy back output parameters and return type */
1101 for (i = 0; i < sig->param_count; i++) {
1102 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
1103 if (sig->params[i]->byref) {
1104 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
1105 mono_mb_emit_ldarg (mb, i + 1);
1106 mono_mb_emit_ldloc (mb, loc_array);
1107 mono_mb_emit_icon (mb, j);
1108 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
1109 if (pclass->valuetype) {
1110 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
1111 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
1112 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
1114 if (pclass != mono_defaults.object_class)
1115 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
1116 mono_mb_emit_byte (mb, CEE_STIND_REF);
1122 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
1123 mono_mb_emit_ldloc (mb, loc_array);
1124 mono_mb_emit_icon (mb, complex_count);
1125 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
1126 if (ret_class->valuetype) {
1127 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
1128 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
1131 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
1132 mono_mb_emit_ldloc (mb, loc_serialized_data);
1133 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
1134 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
1135 if (ret_class->valuetype) {
1136 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
1137 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
1138 } else if (ret_class != mono_defaults.object_class) {
1139 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
1142 mono_mb_emit_ldloc (mb, loc_serialized_data);
1143 mono_mb_emit_byte (mb, CEE_DUP);
1144 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1145 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
1147 mono_mb_patch_short_branch (mb, pos);
1148 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
1149 mono_mb_emit_byte (mb, CEE_POP);
1153 mono_mb_emit_ldloc (mb, loc_return);
1154 if (ret_marshal_type == MONO_MARSHAL_COPY)
1155 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
1158 mono_mb_emit_byte (mb, CEE_RET);
1159 #endif /* DISABLE_JIT */
1161 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1162 info->d.remoting.method = method;
1163 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16, info);
1170 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
1172 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
1173 return mono_marshal_get_xappdomain_invoke (method);
1174 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
1176 return mono_cominterop_get_invoke (method);
1178 g_assert_not_reached ();
1181 return mono_marshal_get_remoting_invoke (method);
1187 G_GNUC_UNUSED static gpointer
1188 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
1190 if (rp->target_domain_id != -1)
1191 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
1193 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
1197 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
1199 MonoMethodSignature *sig;
1200 MonoMethodBuilder *mb;
1201 MonoMethod *res, *native;
1203 int i, pos, pos_rem;
1207 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
1210 /* we cant remote methods without this pointer */
1211 g_assert (mono_method_signature (method)->hasthis);
1213 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
1216 sig = mono_signature_no_pinvoke (method);
1218 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
1221 for (i = 0; i <= sig->param_count; i++)
1222 mono_mb_emit_ldarg (mb, i);
1224 mono_mb_emit_ldarg (mb, 0);
1225 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1227 if (mono_marshal_supports_fast_xdomain (method)) {
1228 mono_mb_emit_ldarg (mb, 0);
1229 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
1231 /* wrapper for cross app domain calls */
1232 native = mono_marshal_get_xappdomain_invoke (method);
1233 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
1234 mono_mb_emit_byte (mb, CEE_RET);
1236 mono_mb_patch_branch (mb, pos_rem);
1238 /* wrapper for normal remote calls */
1239 native = mono_marshal_get_remoting_invoke (method);
1240 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
1241 mono_mb_emit_byte (mb, CEE_RET);
1244 mono_mb_patch_branch (mb, pos);
1245 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
1246 mono_mb_emit_byte (mb, CEE_RET);
1249 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1250 info->d.remoting.method = method;
1251 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16, info);
1258 * mono_marshal_get_ldfld_remote_wrapper:
1259 * @klass: The return type
1261 * This method generates a wrapper for calling mono_load_remote_field_new.
1262 * The return type is ignored for now, as mono_load_remote_field_new () always
1263 * returns an object. In the future, to optimize some codepaths, we might
1264 * call a different function that takes a pointer to a valuetype, instead.
1267 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
1269 MonoMethodSignature *sig, *csig;
1270 MonoMethodBuilder *mb;
1272 static MonoMethod* cached = NULL;
1274 mono_marshal_lock_internal ();
1276 mono_marshal_unlock_internal ();
1279 mono_marshal_unlock_internal ();
1281 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
1283 mb->method->save_lmf = 1;
1285 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
1286 sig->params [0] = &mono_defaults.object_class->byval_arg;
1287 sig->params [1] = &mono_defaults.int_class->byval_arg;
1288 sig->params [2] = &mono_defaults.int_class->byval_arg;
1289 sig->ret = &mono_defaults.object_class->byval_arg;
1292 mono_mb_emit_ldarg (mb, 0);
1293 mono_mb_emit_ldarg (mb, 1);
1294 mono_mb_emit_ldarg (mb, 2);
1296 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
1297 csig->params [0] = &mono_defaults.object_class->byval_arg;
1298 csig->params [1] = &mono_defaults.int_class->byval_arg;
1299 csig->params [2] = &mono_defaults.int_class->byval_arg;
1300 csig->ret = &mono_defaults.object_class->byval_arg;
1303 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
1304 mono_marshal_emit_thread_interrupt_checkpoint (mb);
1306 mono_mb_emit_byte (mb, CEE_RET);
1309 mono_marshal_lock_internal ();
1311 mono_marshal_unlock_internal ();
1314 newm = mono_mb_create (mb, sig, 4, NULL);
1315 mono_marshal_lock_internal ();
1320 mono_marshal_unlock_internal ();
1322 mono_marshal_unlock_internal ();
1323 mono_free_method (newm);
1332 * mono_marshal_get_ldfld_wrapper:
1333 * @type: the type of the field
1335 * This method generates a function which can be use to load a field with type
1336 * @type from an object. The generated function has the following signature:
1337 * <@type> ldfld_wrapper (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, int offset)
1340 mono_marshal_get_ldfld_wrapper (MonoType *type)
1342 MonoMethodSignature *sig;
1343 MonoMethodBuilder *mb;
1349 int t, pos0, pos1 = 0;
1351 type = mono_type_get_underlying_type (type);
1356 if (type->type == MONO_TYPE_SZARRAY) {
1357 klass = mono_defaults.array_class;
1358 } else if (type->type == MONO_TYPE_VALUETYPE) {
1359 klass = type->data.klass;
1360 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
1361 klass = mono_defaults.object_class;
1362 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
1363 klass = mono_defaults.int_class;
1364 } else if (t == MONO_TYPE_GENERICINST) {
1365 if (mono_type_generic_inst_is_valuetype (type))
1366 klass = mono_class_from_mono_type (type);
1368 klass = mono_defaults.object_class;
1370 klass = mono_class_from_mono_type (type);
1373 klass = mono_defaults.int_class;
1376 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
1377 if ((res = mono_marshal_find_in_cache (cache, klass)))
1380 /* we add the %p pointer value of klass because class names are not unique */
1381 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
1382 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
1385 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
1386 sig->params [0] = &mono_defaults.object_class->byval_arg;
1387 sig->params [1] = &mono_defaults.int_class->byval_arg;
1388 sig->params [2] = &mono_defaults.int_class->byval_arg;
1389 sig->params [3] = &mono_defaults.int_class->byval_arg;
1390 sig->ret = &klass->byval_arg;
1393 mono_mb_emit_ldarg (mb, 0);
1394 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1396 mono_mb_emit_ldarg (mb, 0);
1397 mono_mb_emit_ldarg (mb, 1);
1398 mono_mb_emit_ldarg (mb, 2);
1400 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
1403 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
1404 csig->params [0] = &mono_defaults.object_class->byval_arg;
1405 csig->params [1] = &mono_defaults.int_class->byval_arg;
1406 csig->params [2] = &mono_defaults.int_class->byval_arg;
1407 csig->ret = &klass->this_arg;
1410 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
1411 mono_marshal_emit_thread_interrupt_checkpoint (mb);
1414 if (klass->valuetype) {
1415 mono_mb_emit_op (mb, CEE_UNBOX, klass);
1416 pos1 = mono_mb_emit_branch (mb, CEE_BR);
1418 mono_mb_emit_byte (mb, CEE_RET);
1421 mono_mb_patch_branch (mb, pos0);
1423 mono_mb_emit_ldarg (mb, 0);
1424 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1425 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1426 mono_mb_emit_ldarg (mb, 3);
1427 mono_mb_emit_byte (mb, CEE_ADD);
1429 if (klass->valuetype)
1430 mono_mb_patch_branch (mb, pos1);
1435 case MONO_TYPE_BOOLEAN:
1436 case MONO_TYPE_CHAR:
1445 case MONO_TYPE_ARRAY:
1446 case MONO_TYPE_SZARRAY:
1447 case MONO_TYPE_OBJECT:
1448 case MONO_TYPE_CLASS:
1449 case MONO_TYPE_STRING:
1453 case MONO_TYPE_FNPTR:
1454 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
1456 case MONO_TYPE_VALUETYPE:
1457 g_assert (!klass->enumtype);
1458 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
1460 case MONO_TYPE_GENERICINST:
1461 if (mono_type_generic_inst_is_valuetype (type)) {
1462 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
1464 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1468 case MONO_TYPE_MVAR:
1469 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
1472 g_warning ("type %x not implemented", type->type);
1473 g_assert_not_reached ();
1476 mono_mb_emit_byte (mb, CEE_RET);
1477 #endif /* DISABLE_JIT */
1479 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1480 info->d.proxy.klass = klass;
1481 res = mono_mb_create_and_cache_full (cache, klass,
1482 mb, sig, sig->param_count + 16, info, NULL);
1489 * mono_marshal_get_ldflda_wrapper:
1490 * @type: the type of the field
1492 * This method generates a function which can be used to load a field address
1493 * from an object. The generated function has the following signature:
1494 * gpointer ldflda_wrapper (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, int offset);
1497 mono_marshal_get_ldflda_wrapper (MonoType *type)
1499 MonoMethodSignature *sig;
1500 MonoMethodBuilder *mb;
1506 int t, pos0, pos1, pos2, pos3;
1508 type = mono_type_get_underlying_type (type);
1512 if (type->type == MONO_TYPE_SZARRAY) {
1513 klass = mono_defaults.array_class;
1514 } else if (type->type == MONO_TYPE_VALUETYPE) {
1515 klass = type->data.klass;
1516 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
1517 t == MONO_TYPE_CLASS) {
1518 klass = mono_defaults.object_class;
1519 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
1520 klass = mono_defaults.int_class;
1521 } else if (t == MONO_TYPE_GENERICINST) {
1522 if (mono_type_generic_inst_is_valuetype (type))
1523 klass = mono_class_from_mono_type (type);
1525 klass = mono_defaults.object_class;
1527 klass = mono_class_from_mono_type (type);
1530 klass = mono_defaults.int_class;
1533 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
1534 if ((res = mono_marshal_find_in_cache (cache, klass)))
1537 /* we add the %p pointer value of klass because class names are not unique */
1538 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
1539 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
1542 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
1543 sig->params [0] = &mono_defaults.object_class->byval_arg;
1544 sig->params [1] = &mono_defaults.int_class->byval_arg;
1545 sig->params [2] = &mono_defaults.int_class->byval_arg;
1546 sig->params [3] = &mono_defaults.int_class->byval_arg;
1547 sig->ret = &mono_defaults.int_class->byval_arg;
1550 /* if typeof (this) != transparent_proxy goto pos0 */
1551 mono_mb_emit_ldarg (mb, 0);
1552 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1554 /* if same_appdomain goto pos1 */
1555 mono_mb_emit_ldarg (mb, 0);
1556 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
1558 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
1560 /* same app domain */
1561 mono_mb_patch_branch (mb, pos1);
1563 /* if typeof (this) != contextbound goto pos2 */
1564 mono_mb_emit_ldarg (mb, 0);
1565 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
1567 /* if this->rp->context == mono_context_get goto pos3 */
1568 mono_mb_emit_ldarg (mb, 0);
1569 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
1570 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1571 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRealProxy, context));
1572 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1573 mono_mb_emit_icall (mb, mono_context_get);
1574 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
1576 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
1578 mono_mb_patch_branch (mb, pos2);
1579 mono_mb_patch_branch (mb, pos3);
1581 /* return the address of the field from this->rp->unwrapped_server */
1582 mono_mb_emit_ldarg (mb, 0);
1583 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
1584 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1585 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
1586 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1587 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1588 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1589 mono_mb_emit_ldarg (mb, 3);
1590 mono_mb_emit_byte (mb, CEE_ADD);
1591 mono_mb_emit_byte (mb, CEE_RET);
1593 /* not a proxy: return the address of the field directly */
1594 mono_mb_patch_branch (mb, pos0);
1596 mono_mb_emit_ldarg (mb, 0);
1597 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1598 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1599 mono_mb_emit_ldarg (mb, 3);
1600 mono_mb_emit_byte (mb, CEE_ADD);
1602 mono_mb_emit_byte (mb, CEE_RET);
1605 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1606 info->d.proxy.klass = klass;
1607 res = mono_mb_create_and_cache_full (cache, klass,
1608 mb, sig, sig->param_count + 16,
1616 * mono_marshal_get_stfld_remote_wrapper:
1617 * klass: The type of the field
1619 * This function generates a wrapper for calling mono_store_remote_field_new
1620 * with the appropriate signature.
1621 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
1622 * klass argument anymore.
1625 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
1627 MonoMethodSignature *sig, *csig;
1628 MonoMethodBuilder *mb;
1630 static MonoMethod *cached = NULL;
1632 mono_marshal_lock_internal ();
1634 mono_marshal_unlock_internal ();
1637 mono_marshal_unlock_internal ();
1639 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
1641 mb->method->save_lmf = 1;
1643 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
1644 sig->params [0] = &mono_defaults.object_class->byval_arg;
1645 sig->params [1] = &mono_defaults.int_class->byval_arg;
1646 sig->params [2] = &mono_defaults.int_class->byval_arg;
1647 sig->params [3] = &mono_defaults.object_class->byval_arg;
1648 sig->ret = &mono_defaults.void_class->byval_arg;
1651 mono_mb_emit_ldarg (mb, 0);
1652 mono_mb_emit_ldarg (mb, 1);
1653 mono_mb_emit_ldarg (mb, 2);
1654 mono_mb_emit_ldarg (mb, 3);
1656 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
1657 csig->params [0] = &mono_defaults.object_class->byval_arg;
1658 csig->params [1] = &mono_defaults.int_class->byval_arg;
1659 csig->params [2] = &mono_defaults.int_class->byval_arg;
1660 csig->params [3] = &mono_defaults.object_class->byval_arg;
1661 csig->ret = &mono_defaults.void_class->byval_arg;
1664 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
1665 mono_marshal_emit_thread_interrupt_checkpoint (mb);
1667 mono_mb_emit_byte (mb, CEE_RET);
1670 mono_marshal_lock_internal ();
1672 mono_marshal_unlock_internal ();
1675 newm = mono_mb_create (mb, sig, 6, NULL);
1676 mono_marshal_lock_internal ();
1681 mono_marshal_unlock_internal ();
1683 mono_marshal_unlock_internal ();
1684 mono_free_method (newm);
1693 * mono_marshal_get_stfld_wrapper:
1694 * @type: the type of the field
1696 * This method generates a function which can be use to store a field with type
1697 * @type. The generated function has the following signature:
1698 * void stfld_wrapper (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, int offset, <@type> val)
1701 mono_marshal_get_stfld_wrapper (MonoType *type)
1703 MonoMethodSignature *sig;
1704 MonoMethodBuilder *mb;
1712 type = mono_type_get_underlying_type (type);
1716 if (type->type == MONO_TYPE_SZARRAY) {
1717 klass = mono_defaults.array_class;
1718 } else if (type->type == MONO_TYPE_VALUETYPE) {
1719 klass = type->data.klass;
1720 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
1721 klass = mono_defaults.object_class;
1722 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
1723 klass = mono_defaults.int_class;
1724 } else if (t == MONO_TYPE_GENERICINST) {
1725 if (mono_type_generic_inst_is_valuetype (type))
1726 klass = mono_class_from_mono_type (type);
1728 klass = mono_defaults.object_class;
1730 klass = mono_class_from_mono_type (type);
1733 klass = mono_defaults.int_class;
1736 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
1737 if ((res = mono_marshal_find_in_cache (cache, klass)))
1740 /* we add the %p pointer value of klass because class names are not unique */
1741 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
1742 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
1745 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
1746 sig->params [0] = &mono_defaults.object_class->byval_arg;
1747 sig->params [1] = &mono_defaults.int_class->byval_arg;
1748 sig->params [2] = &mono_defaults.int_class->byval_arg;
1749 sig->params [3] = &mono_defaults.int_class->byval_arg;
1750 sig->params [4] = &klass->byval_arg;
1751 sig->ret = &mono_defaults.void_class->byval_arg;
1754 mono_mb_emit_ldarg (mb, 0);
1755 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1757 mono_mb_emit_ldarg (mb, 0);
1758 mono_mb_emit_ldarg (mb, 1);
1759 mono_mb_emit_ldarg (mb, 2);
1760 mono_mb_emit_ldarg (mb, 4);
1761 if (klass->valuetype)
1762 mono_mb_emit_op (mb, CEE_BOX, klass);
1764 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
1766 mono_mb_emit_byte (mb, CEE_RET);
1768 mono_mb_patch_branch (mb, pos);
1770 mono_mb_emit_ldarg (mb, 0);
1771 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1772 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1773 mono_mb_emit_ldarg (mb, 3);
1774 mono_mb_emit_byte (mb, CEE_ADD);
1775 mono_mb_emit_ldarg (mb, 4);
1780 case MONO_TYPE_BOOLEAN:
1781 case MONO_TYPE_CHAR:
1790 case MONO_TYPE_ARRAY:
1791 case MONO_TYPE_SZARRAY:
1792 case MONO_TYPE_OBJECT:
1793 case MONO_TYPE_CLASS:
1794 case MONO_TYPE_STRING:
1798 case MONO_TYPE_FNPTR:
1799 mono_mb_emit_byte (mb, mono_type_to_stind (type));
1801 case MONO_TYPE_VALUETYPE:
1802 g_assert (!klass->enumtype);
1803 mono_mb_emit_op (mb, CEE_STOBJ, klass);
1805 case MONO_TYPE_GENERICINST:
1807 case MONO_TYPE_MVAR:
1808 mono_mb_emit_op (mb, CEE_STOBJ, klass);
1811 g_warning ("type %x not implemented", type->type);
1812 g_assert_not_reached ();
1815 mono_mb_emit_byte (mb, CEE_RET);
1818 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1819 info->d.proxy.klass = klass;
1820 res = mono_mb_create_and_cache_full (cache, klass,
1821 mb, sig, sig->param_count + 16,
1829 mono_marshal_get_proxy_cancast (MonoClass *klass)
1831 static MonoMethodSignature *isint_sig = NULL;
1835 int pos_failed, pos_end;
1836 char *name, *klass_name;
1837 MonoMethod *can_cast_to;
1838 MonoMethodDesc *desc;
1839 MonoMethodBuilder *mb;
1841 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
1842 if ((res = mono_marshal_find_in_cache (cache, klass)))
1846 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
1847 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
1848 isint_sig->ret = &mono_defaults.object_class->byval_arg;
1849 isint_sig->pinvoke = 0;
1852 klass_name = mono_type_full_name (&klass->byval_arg);
1853 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass_name);
1854 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
1855 g_free (klass_name);
1858 mb->method->save_lmf = 1;
1861 /* get the real proxy from the transparent proxy*/
1862 mono_mb_emit_ldarg (mb, 0);
1863 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
1864 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1866 /* get the reflection type from the type handle */
1867 mono_mb_emit_ptr (mb, &klass->byval_arg);
1868 mono_mb_emit_icall (mb, type_from_handle);
1870 mono_mb_emit_ldarg (mb, 0);
1872 /* make the call to CanCastTo (type, ob) */
1873 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
1874 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
1875 g_assert (can_cast_to);
1876 mono_method_desc_free (desc);
1877 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
1879 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
1881 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
1882 mono_mb_emit_ptr (mb, &klass->byval_arg);
1883 mono_mb_emit_icall (mb, type_from_handle);
1884 mono_mb_emit_ldarg (mb, 0);
1886 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
1887 mono_marshal_emit_thread_interrupt_checkpoint (mb);
1889 mono_mb_emit_ldarg (mb, 0);
1890 pos_end = mono_mb_emit_branch (mb, CEE_BR);
1894 mono_mb_patch_branch (mb, pos_failed);
1895 mono_mb_emit_byte (mb, CEE_LDNULL);
1899 mono_mb_patch_branch (mb, pos_end);
1900 mono_mb_emit_byte (mb, CEE_RET);
1903 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1904 info->d.proxy.klass = klass;
1905 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
1912 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
1915 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
1916 klass = mono_class_from_mono_type (rtype->type);
1917 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
1920 #else /* DISABLE_REMOTING */
1923 mono_remoting_init (void)
1927 #endif /* DISABLE_REMOTING */
1929 /* mono_get_xdomain_marshal_type()
1930 * Returns the kind of marshalling that a type needs for cross domain calls.
1932 static MonoXDomainMarshalType
1933 mono_get_xdomain_marshal_type (MonoType *t)
1936 case MONO_TYPE_VOID:
1937 g_assert_not_reached ();
1941 case MONO_TYPE_BOOLEAN:
1944 case MONO_TYPE_CHAR:
1951 return MONO_MARSHAL_NONE;
1952 case MONO_TYPE_STRING:
1953 return MONO_MARSHAL_COPY;
1954 case MONO_TYPE_ARRAY:
1955 case MONO_TYPE_SZARRAY: {
1956 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
1957 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
1958 return MONO_MARSHAL_COPY;
1964 return MONO_MARSHAL_SERIALIZE;
1967 /* mono_marshal_xdomain_copy_value
1968 * Makes a copy of "val" suitable for the current domain.
1971 mono_marshal_xdomain_copy_value (MonoObject *val)
1974 if (val == NULL) return NULL;
1976 domain = mono_domain_get ();
1978 switch (mono_object_class (val)->byval_arg.type) {
1979 case MONO_TYPE_VOID:
1980 g_assert_not_reached ();
1984 case MONO_TYPE_BOOLEAN:
1987 case MONO_TYPE_CHAR:
1993 case MONO_TYPE_R8: {
1994 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
1996 case MONO_TYPE_STRING: {
1997 MonoString *str = (MonoString *) val;
1998 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
2000 case MONO_TYPE_ARRAY:
2001 case MONO_TYPE_SZARRAY: {
2003 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
2004 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
2005 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
2006 if (mt == MONO_MARSHAL_COPY) {
2007 int i, len = mono_array_length (acopy);
2008 for (i = 0; i < len; i++) {
2009 MonoObject *item = mono_array_get (acopy, gpointer, i);
2010 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
2013 return (MonoObject *) acopy;