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)
8 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
13 #include "mono/metadata/remoting.h"
14 #include "mono/metadata/marshal.h"
15 #include "mono/metadata/abi-details.h"
16 #include "mono/metadata/cominterop.h"
17 #include "mono/metadata/tabledefs.h"
18 #include "mono/metadata/exception.h"
19 #include "mono/metadata/debug-helpers.h"
20 #include "mono/metadata/reflection-internals.h"
23 MONO_MARSHAL_NONE, /* No marshalling needed */
24 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
25 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
26 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
27 } MonoXDomainMarshalType;
29 #ifndef DISABLE_REMOTING
31 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
35 #include "mono/cil/opcode.def"
40 struct _MonoRemotingMethods {
42 MonoMethod *invoke_with_check;
43 MonoMethod *xdomain_invoke;
44 MonoMethod *xdomain_dispatch;
47 typedef struct _MonoRemotingMethods MonoRemotingMethods;
50 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
53 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
56 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
59 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
61 static MonoXDomainMarshalType
62 mono_get_xdomain_marshal_type (MonoType *t);
65 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
67 static MonoReflectionType *
68 type_from_handle (MonoType *handle);
70 /* Class lazy loading functions */
71 static GENERATE_GET_CLASS_WITH_CACHE (remoting_services, System.Runtime.Remoting, RemotingServices)
72 static GENERATE_GET_CLASS_WITH_CACHE (call_context, System.Runtime.Remoting.Messaging, CallContext)
73 static GENERATE_GET_CLASS_WITH_CACHE (context, System.Runtime.Remoting.Contexts, Context)
75 static mono_mutex_t remoting_mutex;
76 static gboolean remoting_mutex_inited;
78 static MonoClass *byte_array_class;
80 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
81 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
85 mono_compile_method_icall (MonoMethod *method);
88 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
90 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
92 mono_register_jit_icall (func, name, sig, save);
98 g_assert (remoting_mutex_inited);
99 mono_os_mutex_lock (&remoting_mutex);
103 remoting_unlock (void)
105 g_assert (remoting_mutex_inited);
106 mono_os_mutex_unlock (&remoting_mutex);
110 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
113 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
119 g_hash_table_new (hash_func, equal_func);
120 mono_memory_barrier ();
129 get_cache_full (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func, GDestroyNotify key_destroy_func, GDestroyNotify value_destroy_func)
135 g_hash_table_new_full (hash_func, equal_func, key_destroy_func, value_destroy_func);
136 mono_memory_barrier ();
145 mono_remoting_init (void)
147 mono_os_mutex_init (&remoting_mutex);
148 remoting_mutex_inited = TRUE;
152 mono_remoting_marshal_init (void)
156 static gboolean module_initialized = FALSE;
157 static gboolean icalls_registered = FALSE;
159 if (module_initialized)
162 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
165 klass = mono_class_get_remoting_services_class ();
166 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
167 g_assert (method_rs_serialize);
168 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
169 g_assert (method_rs_deserialize);
170 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
171 g_assert (method_rs_serialize_exc);
173 klass = mono_defaults.real_proxy_class;
174 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
175 g_assert (method_rs_appdomain_target);
177 klass = mono_defaults.exception_class;
178 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
179 g_assert (method_exc_fixexc);
181 klass = mono_class_get_call_context_class ();
182 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
183 g_assert (method_set_call_context);
185 klass = mono_class_get_context_class ();
186 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
187 g_assert (method_needs_context_sink);
192 if (!icalls_registered) {
193 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
194 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
195 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
196 register_icall (ves_icall_mono_marshal_xdomain_copy_value, "ves_icall_mono_marshal_xdomain_copy_value", "object object", FALSE);
197 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
198 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
199 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
200 register_icall (mono_compile_method_icall, "mono_compile_method_icall", "ptr ptr", FALSE);
204 icalls_registered = TRUE;
206 mono_loader_unlock ();
208 module_initialized = TRUE;
211 /* This is an icall, it will return NULL and set pending exception on failure */
212 static MonoReflectionType *
213 type_from_handle (MonoType *handle)
216 MonoReflectionType *ret;
217 MonoDomain *domain = mono_domain_get ();
218 MonoClass *klass = mono_class_from_mono_type (handle);
220 mono_class_init (klass);
222 ret = mono_type_get_object_checked (domain, handle, &error);
223 mono_error_set_pending_exception (&error);
230 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
233 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
234 mono_mb_emit_byte (mb, CEE_LDIND_I);
235 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
236 mono_mb_emit_byte (mb, CEE_ADD);
237 mono_mb_emit_byte (mb, CEE_LDIND_I);
238 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
239 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
240 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
241 pos = mono_mb_emit_branch (mb, branch_code);
246 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
249 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
250 mono_mb_emit_byte (mb, CEE_LDIND_REF);
251 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
252 mono_mb_emit_byte (mb, CEE_LDIND_I4);
253 mono_mb_emit_icon (mb, -1);
254 pos = mono_mb_emit_branch (mb, branch_code);
259 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
261 static int offset = -1;
265 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
267 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
268 mono_mb_emit_byte (mb, CEE_LDIND_REF);
269 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
270 mono_mb_emit_byte (mb, CEE_LDIND_REF);
271 mono_mb_emit_ldflda (mb, offset);
272 mono_mb_emit_byte (mb, CEE_LDIND_U1);
273 mono_mb_emit_icon (mb, mask);
274 mono_mb_emit_byte (mb, CEE_AND);
275 mono_mb_emit_icon (mb, 0);
276 return mono_mb_emit_branch (mb, branch_code);
278 #endif /* !DISABLE_JIT */
280 static inline MonoMethod*
281 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
283 MonoMethod *res = NULL;
284 MonoRemotingMethods *wrps = NULL;
286 mono_marshal_lock_internal ();
287 if (mono_method_get_wrapper_cache (method)->remoting_invoke_cache)
288 wrps = (MonoRemotingMethods *)g_hash_table_lookup (mono_method_get_wrapper_cache (method)->remoting_invoke_cache, method);
291 switch (wrapper_type) {
292 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
293 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
294 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
295 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
299 /* it is important to do the unlock after the load from wrps, since in
300 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
301 * to take the loader lock and some other thread may set the fields.
303 mono_marshal_unlock_internal ();
307 /* Create the method from the builder and place it in the cache */
308 static inline MonoMethod*
309 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
310 MonoMethodSignature *sig, int max_stack, WrapperInfo *info)
312 MonoMethod **res = NULL;
313 MonoRemotingMethods *wrps;
316 cache = get_cache_full (&mono_method_get_wrapper_cache (key)->remoting_invoke_cache, mono_aligned_addr_hash, NULL, NULL, g_free);
318 mono_marshal_lock_internal ();
319 wrps = (MonoRemotingMethods *)g_hash_table_lookup (cache, key);
321 wrps = g_new0 (MonoRemotingMethods, 1);
322 g_hash_table_insert (cache, key, wrps);
325 switch (mb->method->wrapper_type) {
326 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
327 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
328 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
329 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
330 default: g_assert_not_reached (); break;
332 mono_marshal_unlock_internal ();
336 newm = mono_mb_create_method (mb, sig, max_stack);
338 mono_marshal_lock_internal ();
341 mono_marshal_set_wrapper_info (*res, info);
342 mono_marshal_unlock_internal ();
344 mono_marshal_unlock_internal ();
345 mono_free_method (newm);
353 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
356 MonoMethodMessage *msg;
357 MonoTransparentProxy *this_obj;
358 MonoObject *res, *exc;
361 this_obj = *((MonoTransparentProxy **)params [0]);
364 g_assert (((MonoObject *)this_obj)->vtable->klass == mono_defaults.transparent_proxy_class);
366 /* skip the this pointer */
369 if (mono_class_is_contextbound (this_obj->remote_class->proxy_class) && this_obj->rp->context == (MonoObject *) mono_context_get ())
372 MonoMethodSignature *sig = mono_method_signature (method);
373 int count = sig->param_count;
374 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
376 for (i=0; i<count; i++) {
377 MonoClass *klass = mono_class_from_mono_type (sig->params [i]);
378 if (klass->valuetype) {
379 if (sig->params [i]->byref) {
380 mparams[i] = *((gpointer *)params [i]);
382 /* runtime_invoke expects a boxed instance */
383 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
384 mparams[i] = mono_nullable_box ((guint8 *)params [i], klass, &error);
388 mparams[i] = params [i];
391 mparams[i] = *((gpointer**)params [i]);
395 res = mono_runtime_invoke_checked (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this_obj): this_obj, mparams, &error);
402 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
406 res = mono_remoting_invoke ((MonoObject *)this_obj->rp, msg, &exc, &out_args, &error);
411 mono_error_init (&error);
412 mono_error_set_exception_instance (&error, (MonoException *)exc);
416 mono_method_return_message_restore (method, params, out_args, &error);
417 if (!is_ok (&error)) goto fail;
421 /* This icall will be called from managed code, and more over
422 * from a protected wrapper so interruptions such as pending
423 * exceptions will not be honored. (See
424 * is_running_protected_wrapper () in threads.c and
425 * mono_marshal_get_remoting_invoke () in remoting.c)
427 mono_error_raise_exception (&error); /* OK to throw, see note */
433 mono_marshal_get_remoting_invoke (MonoMethod *method)
435 MonoMethodSignature *sig;
436 MonoMethodBuilder *mb;
443 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
446 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
448 if (mono_class_is_com_object (method->klass) || method->klass == mono_class_try_get_com_object_class ()) {
449 MonoVTable *vtable = mono_class_vtable (mono_domain_get (), method->klass);
450 g_assert (vtable); /*FIXME do proper error handling*/
452 if (!mono_vtable_is_remote (vtable)) {
453 return mono_cominterop_get_invoke (method);
458 sig = mono_signature_no_pinvoke (method);
460 /* we cant remote methods without this pointer */
464 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
467 mono_remoting_marshal_init ();
469 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
472 mb->method->save_lmf = 1;
474 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
476 mono_mb_emit_ptr (mb, method);
477 mono_mb_emit_ldloc (mb, params_var);
478 mono_mb_emit_icall (mb, mono_remoting_wrapper);
479 // FIXME: this interrupt checkpoint code is a no-op since 'mb'
480 // is a MONO_WRAPPER_REMOTING_INVOKE, and
481 // mono_thread_interruption_checkpoint_request (FALSE)
482 // considers such wrappers "protected" and always returns
483 // NULL as if there's no pending interruption.
484 mono_marshal_emit_thread_interrupt_checkpoint (mb);
486 if (sig->ret->type == MONO_TYPE_VOID) {
487 mono_mb_emit_byte (mb, CEE_POP);
488 mono_mb_emit_byte (mb, CEE_RET);
490 mono_mb_emit_restore_result (mb, sig->ret);
494 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
495 info->d.remoting.method = method;
496 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16, info);
502 /* mono_marshal_xdomain_copy_out_value()
503 * Copies the contents of the src instance into the dst instance. src and dst
504 * must have the same type, and if they are arrays, the same size.
506 * This is an icall, it may use mono_error_set_pending_exception
509 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
512 if (src == NULL || dst == NULL) return;
514 g_assert (mono_object_class (src) == mono_object_class (dst));
516 switch (mono_object_class (src)->byval_arg.type) {
517 case MONO_TYPE_ARRAY:
518 case MONO_TYPE_SZARRAY: {
519 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
520 if (mt == MONO_MARSHAL_SERIALIZE) return;
521 if (mt == MONO_MARSHAL_COPY) {
522 int i, len = mono_array_length ((MonoArray *)dst);
523 for (i = 0; i < len; i++) {
524 MonoObject *item = (MonoObject *)mono_array_get ((MonoArray *)src, gpointer, i);
525 MonoObject *item_copy = mono_marshal_xdomain_copy_value (item, &error);
526 if (mono_error_set_pending_exception (&error))
528 mono_array_setref ((MonoArray *)dst, i, item_copy);
531 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
542 #if !defined (DISABLE_JIT)
544 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
546 mono_mb_emit_icall (mb, ves_icall_mono_marshal_xdomain_copy_value);
547 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
551 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
553 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
557 /* mono_marshal_supports_fast_xdomain()
558 * Returns TRUE if the method can use the fast xdomain wrapper.
561 mono_marshal_supports_fast_xdomain (MonoMethod *method)
563 return !mono_class_is_contextbound (method->klass) &&
564 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
568 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
570 MonoDomain *current_domain = mono_domain_get ();
571 MonoDomain *domain = mono_domain_get_by_id (id);
573 if (!domain || !mono_domain_set (domain, FALSE)) {
574 mono_set_pending_exception (mono_get_exception_appdomain_unloaded ());
579 mono_thread_push_appdomain_ref (domain);
581 mono_thread_pop_appdomain_ref ();
583 return current_domain->domain_id;
586 #if !defined (DISABLE_JIT)
588 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
590 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
594 mono_compile_method_icall (MonoMethod *method)
597 gpointer result = mono_compile_method_checked (method, &error);
598 mono_error_set_pending_exception (&error);
602 /* mono_marshal_emit_load_domain_method ()
603 * Loads into the stack a pointer to the code of the provided method for
604 * the current domain.
607 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
609 /* We need a pointer to the method for the running domain (not the domain
610 * that compiles the method).
612 mono_mb_emit_ptr (mb, method);
613 mono_mb_emit_icall (mb, mono_compile_method_icall);
617 /* mono_marshal_check_domain_image ()
618 * Returns TRUE if the image is loaded in the specified
619 * application domain.
622 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
627 MonoDomain *domain = mono_domain_get_by_id (domain_id);
631 mono_domain_assemblies_lock (domain);
632 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
633 ass = (MonoAssembly *)tmp->data;
634 if (ass->image == image)
637 mono_domain_assemblies_unlock (domain);
642 /* mono_marshal_get_xappdomain_dispatch ()
643 * Generates a method that dispatches a method call from another domain into
644 * the current domain.
647 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
649 MonoMethodSignature *sig, *csig;
650 MonoMethodBuilder *mb;
652 int i, j, param_index, copy_locals_base;
653 MonoClass *ret_class = NULL;
654 int loc_array=0, loc_return=0, loc_serialized_exc=0;
655 MonoExceptionClause *main_clause;
657 gboolean copy_return;
660 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
663 sig = mono_method_signature (method);
664 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
667 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
668 csig->params [j++] = &mono_defaults.object_class->byval_arg;
669 csig->params [j++] = &byte_array_class->this_arg;
670 csig->params [j++] = &byte_array_class->this_arg;
671 for (i = 0; i < sig->param_count; i++) {
672 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
673 csig->params [j++] = sig->params [i];
676 csig->ret = sig->ret;
678 csig->ret = &mono_defaults.void_class->byval_arg;
680 csig->hasthis = FALSE;
682 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
683 mb->method->save_lmf = 1;
688 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
689 if (complex_count > 0)
690 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
691 if (sig->ret->type != MONO_TYPE_VOID) {
692 loc_return = mono_mb_add_local (mb, sig->ret);
693 ret_class = mono_class_from_mono_type (sig->ret);
698 main_clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
699 main_clause->try_offset = mono_mb_get_label (mb);
701 /* Clean the call context */
703 mono_mb_emit_byte (mb, CEE_LDNULL);
704 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
705 mono_mb_emit_byte (mb, CEE_POP);
707 /* Deserialize call data */
709 mono_mb_emit_ldarg (mb, 1);
710 mono_mb_emit_byte (mb, CEE_LDIND_REF);
711 mono_mb_emit_byte (mb, CEE_DUP);
712 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
714 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
715 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
717 if (complex_count > 0)
718 mono_mb_emit_stloc (mb, loc_array);
720 mono_mb_emit_byte (mb, CEE_POP);
722 mono_mb_patch_short_branch (mb, pos);
724 /* Get the target object */
726 mono_mb_emit_ldarg (mb, 0);
727 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
729 /* Load the arguments */
731 copy_locals_base = mb->locals;
732 param_index = 3; // Index of the first non-serialized parameter of this wrapper
734 for (i = 0; i < sig->param_count; i++) {
735 MonoType *pt = sig->params [i];
736 MonoClass *pclass = mono_class_from_mono_type (pt);
737 switch (marshal_types [i]) {
738 case MONO_MARSHAL_SERIALIZE: {
739 /* take the value from the serialized array */
740 mono_mb_emit_ldloc (mb, loc_array);
741 mono_mb_emit_icon (mb, j++);
743 if (pclass->valuetype) {
744 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
745 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
747 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
750 if (pclass->valuetype) {
751 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
752 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
753 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
755 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
756 if (pclass != mono_defaults.object_class) {
757 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
763 case MONO_MARSHAL_COPY_OUT: {
764 /* Keep a local copy of the value since we need to copy it back after the call */
765 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
766 mono_mb_emit_ldarg (mb, param_index++);
767 mono_marshal_emit_xdomain_copy_value (mb, pclass);
768 mono_mb_emit_byte (mb, CEE_DUP);
769 mono_mb_emit_stloc (mb, copy_local);
772 case MONO_MARSHAL_COPY: {
773 mono_mb_emit_ldarg (mb, param_index);
775 mono_mb_emit_byte (mb, CEE_DUP);
776 mono_mb_emit_byte (mb, CEE_DUP);
777 mono_mb_emit_byte (mb, CEE_LDIND_REF);
778 mono_marshal_emit_xdomain_copy_value (mb, pclass);
779 mono_mb_emit_byte (mb, CEE_STIND_REF);
781 mono_marshal_emit_xdomain_copy_value (mb, pclass);
786 case MONO_MARSHAL_NONE:
787 mono_mb_emit_ldarg (mb, param_index++);
792 /* Make the call to the real object */
794 mono_marshal_emit_thread_force_interrupt_checkpoint (mb);
796 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
798 if (sig->ret->type != MONO_TYPE_VOID)
799 mono_mb_emit_stloc (mb, loc_return);
801 /* copy back MONO_MARSHAL_COPY_OUT parameters */
805 for (i = 0; i < sig->param_count; i++) {
806 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
807 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
808 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
809 mono_mb_emit_ldarg (mb, param_index);
810 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
815 /* Serialize the return values */
817 if (complex_out_count > 0) {
818 /* Reset parameters in the array that don't need to be serialized back */
820 for (i = 0; i < sig->param_count; i++) {
821 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
822 if (!sig->params [i]->byref) {
823 mono_mb_emit_ldloc (mb, loc_array);
824 mono_mb_emit_icon (mb, j);
825 mono_mb_emit_byte (mb, CEE_LDNULL);
826 mono_mb_emit_byte (mb, CEE_STELEM_REF);
831 /* Add the return value to the array */
833 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
834 mono_mb_emit_ldloc (mb, loc_array);
835 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
836 mono_mb_emit_ldloc (mb, loc_return);
838 g_assert (ret_class); /*FIXME properly fail here*/
839 if (ret_class->valuetype) {
840 mono_mb_emit_op (mb, CEE_BOX, ret_class);
842 mono_mb_emit_byte (mb, CEE_STELEM_REF);
847 mono_mb_emit_ldarg (mb, 1);
848 mono_mb_emit_ldloc (mb, loc_array);
849 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
850 mono_mb_emit_byte (mb, CEE_STIND_REF);
851 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
852 mono_mb_emit_ldarg (mb, 1);
853 mono_mb_emit_ldloc (mb, loc_return);
854 if (ret_class->valuetype) {
855 mono_mb_emit_op (mb, CEE_BOX, ret_class);
857 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
858 mono_mb_emit_byte (mb, CEE_STIND_REF);
860 mono_mb_emit_ldarg (mb, 1);
861 mono_mb_emit_byte (mb, CEE_LDNULL);
862 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
863 mono_mb_emit_byte (mb, CEE_STIND_REF);
866 mono_mb_emit_ldarg (mb, 2);
867 mono_mb_emit_byte (mb, CEE_LDNULL);
868 mono_mb_emit_byte (mb, CEE_STIND_REF);
869 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
871 /* Main exception catch */
872 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
873 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
874 main_clause->data.catch_class = mono_defaults.object_class;
877 main_clause->handler_offset = mono_mb_get_label (mb);
878 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
879 mono_mb_emit_stloc (mb, loc_serialized_exc);
880 mono_mb_emit_ldarg (mb, 2);
881 mono_mb_emit_ldloc (mb, loc_serialized_exc);
882 mono_mb_emit_byte (mb, CEE_STIND_REF);
883 mono_mb_emit_branch (mb, CEE_LEAVE);
884 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
887 mono_mb_patch_branch (mb, pos_leave);
890 mono_mb_emit_ldloc (mb, loc_return);
892 mono_mb_emit_byte (mb, CEE_RET);
894 mono_mb_set_clauses (mb, 1, main_clause);
897 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
898 info->d.remoting.method = method;
899 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16, info);
905 /* mono_marshal_get_xappdomain_invoke ()
906 * Generates a fast remoting wrapper for cross app domain calls.
909 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
911 MonoMethodSignature *sig;
912 MonoMethodBuilder *mb;
914 int i, j, complex_count, complex_out_count, copy_locals_base;
916 MonoClass *ret_class = NULL;
917 MonoMethod *xdomain_method;
918 int ret_marshal_type = MONO_MARSHAL_NONE;
919 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
920 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
921 int pos, pos_dispatch, pos_noex;
922 gboolean copy_return = FALSE;
927 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
930 /* we cant remote methods without this pointer */
931 if (!mono_method_signature (method)->hasthis)
934 mono_remoting_marshal_init ();
936 if (!mono_marshal_supports_fast_xdomain (method))
937 return mono_marshal_get_remoting_invoke (method);
939 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
942 sig = mono_signature_no_pinvoke (method);
944 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
945 mb->method->save_lmf = 1;
947 /* Count the number of parameters that need to be serialized */
949 marshal_types = (int *)alloca (sizeof (int) * sig->param_count);
950 complex_count = complex_out_count = 0;
951 for (i = 0; i < sig->param_count; i++) {
952 MonoType *ptype = sig->params[i];
953 int mt = mono_get_xdomain_marshal_type (ptype);
955 /* If the [Out] attribute is applied to a parameter that can be internally copied,
956 * the copy will be made by reusing the original object instance
958 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
959 mt = MONO_MARSHAL_COPY_OUT;
960 else if (mt == MONO_MARSHAL_SERIALIZE) {
962 if (ptype->byref) complex_out_count++;
964 marshal_types [i] = mt;
967 if (sig->ret->type != MONO_TYPE_VOID) {
968 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
969 ret_class = mono_class_from_mono_type (sig->ret);
970 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
976 if (complex_count > 0)
977 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
978 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
979 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
981 loc_return = mono_mb_add_local (mb, sig->ret);
982 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
983 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
984 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
985 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
987 /* Save thread domain data */
989 mono_mb_emit_icall (mb, mono_context_get);
990 mono_mb_emit_byte (mb, CEE_DUP);
991 mono_mb_emit_stloc (mb, loc_context);
993 /* If the thread is not running in the default context, it needs to go
994 * through the whole remoting sink, since the context is going to change
996 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
997 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
999 /* Another case in which the fast path can't be used: when the target domain
1000 * has a different image for the same assembly.
1003 /* Get the target domain id */
1005 mono_mb_emit_ldarg (mb, 0);
1006 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
1007 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1008 mono_mb_emit_byte (mb, CEE_DUP);
1009 mono_mb_emit_stloc (mb, loc_real_proxy);
1011 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
1012 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1013 mono_mb_emit_stloc (mb, loc_domainid);
1015 /* Check if the target domain has the same image for the required assembly */
1017 mono_mb_emit_ldloc (mb, loc_domainid);
1018 mono_mb_emit_ptr (mb, method->klass->image);
1019 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
1020 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
1022 /* Use the whole remoting sink to dispatch this message */
1024 mono_mb_patch_short_branch (mb, pos);
1026 mono_mb_emit_ldarg (mb, 0);
1027 for (i = 0; i < sig->param_count; i++)
1028 mono_mb_emit_ldarg (mb, i + 1);
1030 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
1031 mono_mb_emit_byte (mb, CEE_RET);
1032 mono_mb_patch_short_branch (mb, pos_dispatch);
1034 /* Create the array that will hold the parameters to be serialized */
1036 if (complex_count > 0) {
1037 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 */
1038 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
1041 for (i = 0; i < sig->param_count; i++) {
1043 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
1044 pclass = mono_class_from_mono_type (sig->params[i]);
1045 mono_mb_emit_byte (mb, CEE_DUP);
1046 mono_mb_emit_icon (mb, j);
1047 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
1048 if (sig->params[i]->byref) {
1049 if (pclass->valuetype)
1050 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
1052 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1054 if (pclass->valuetype)
1055 mono_mb_emit_op (mb, CEE_BOX, pclass);
1056 mono_mb_emit_byte (mb, CEE_STELEM_REF);
1059 mono_mb_emit_stloc (mb, loc_array);
1061 /* Serialize parameters */
1063 mono_mb_emit_ldloc (mb, loc_array);
1064 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
1065 mono_mb_emit_stloc (mb, loc_serialized_data);
1067 mono_mb_emit_byte (mb, CEE_LDNULL);
1068 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
1069 mono_mb_emit_stloc (mb, loc_serialized_data);
1074 mono_mb_emit_ldloc (mb, loc_domainid);
1075 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1076 mono_marshal_emit_switch_domain (mb);
1077 mono_mb_emit_stloc (mb, loc_old_domainid);
1079 /* Load the arguments */
1081 mono_mb_emit_ldloc (mb, loc_real_proxy);
1082 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
1083 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
1085 copy_locals_base = mb->locals;
1086 for (i = 0; i < sig->param_count; i++) {
1087 switch (marshal_types [i]) {
1088 case MONO_MARSHAL_SERIALIZE:
1090 case MONO_MARSHAL_COPY: {
1091 mono_mb_emit_ldarg (mb, i+1);
1092 if (sig->params [i]->byref) {
1093 /* make a local copy of the byref parameter. The real parameter
1094 * will be updated after the xdomain call
1096 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
1097 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
1098 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1099 mono_mb_emit_stloc (mb, copy_local);
1100 mono_mb_emit_ldloc_addr (mb, copy_local);
1104 case MONO_MARSHAL_COPY_OUT:
1105 case MONO_MARSHAL_NONE:
1106 mono_mb_emit_ldarg (mb, i+1);
1111 /* Make the call to the invoke wrapper in the target domain */
1113 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
1114 mono_marshal_emit_load_domain_method (mb, xdomain_method);
1115 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
1118 mono_mb_emit_stloc (mb, loc_return);
1122 mono_mb_emit_ldloc (mb, loc_old_domainid);
1123 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1124 mono_marshal_emit_switch_domain (mb);
1125 mono_mb_emit_byte (mb, CEE_POP);
1127 /* Restore thread domain data */
1129 mono_mb_emit_ldloc (mb, loc_context);
1130 mono_mb_emit_icall (mb, mono_context_set);
1132 /* if (loc_serialized_exc != null) ... */
1134 mono_mb_emit_ldloc (mb, loc_serialized_exc);
1135 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1137 mono_mb_emit_ldloc (mb, loc_serialized_exc);
1138 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
1139 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
1140 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
1141 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
1142 mono_mb_emit_byte (mb, CEE_THROW);
1143 mono_mb_patch_short_branch (mb, pos_noex);
1145 /* copy back non-serialized output parameters */
1148 for (i = 0; i < sig->param_count; i++) {
1149 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
1150 mono_mb_emit_ldarg (mb, i + 1);
1151 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
1152 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
1153 mono_mb_emit_byte (mb, CEE_STIND_REF);
1156 /* Deserialize out parameters */
1158 if (complex_out_count > 0) {
1159 mono_mb_emit_ldloc (mb, loc_serialized_data);
1160 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
1161 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
1162 mono_mb_emit_stloc (mb, loc_array);
1164 /* Copy back output parameters and return type */
1167 for (i = 0; i < sig->param_count; i++) {
1168 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
1169 if (sig->params[i]->byref) {
1170 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
1171 mono_mb_emit_ldarg (mb, i + 1);
1172 mono_mb_emit_ldloc (mb, loc_array);
1173 mono_mb_emit_icon (mb, j);
1174 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
1175 if (pclass->valuetype) {
1176 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
1177 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
1178 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
1180 if (pclass != mono_defaults.object_class)
1181 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
1182 mono_mb_emit_byte (mb, CEE_STIND_REF);
1188 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
1189 mono_mb_emit_ldloc (mb, loc_array);
1190 mono_mb_emit_icon (mb, complex_count);
1191 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
1192 if (ret_class->valuetype) {
1193 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
1194 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
1197 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
1198 mono_mb_emit_ldloc (mb, loc_serialized_data);
1199 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
1200 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
1201 if (ret_class->valuetype) {
1202 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
1203 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
1204 } else if (ret_class != mono_defaults.object_class) {
1205 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
1208 mono_mb_emit_ldloc (mb, loc_serialized_data);
1209 mono_mb_emit_byte (mb, CEE_DUP);
1210 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1211 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
1213 mono_mb_patch_short_branch (mb, pos);
1214 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
1215 mono_mb_emit_byte (mb, CEE_POP);
1219 mono_mb_emit_ldloc (mb, loc_return);
1220 if (ret_marshal_type == MONO_MARSHAL_COPY)
1221 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
1224 mono_mb_emit_byte (mb, CEE_RET);
1225 #endif /* DISABLE_JIT */
1227 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1228 info->d.remoting.method = method;
1229 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16, info);
1236 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
1238 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
1239 return mono_marshal_get_xappdomain_invoke (method);
1240 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
1242 return mono_cominterop_get_invoke (method);
1244 g_assert_not_reached ();
1247 return mono_marshal_get_remoting_invoke (method);
1253 G_GNUC_UNUSED static gpointer
1254 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
1257 MonoMethod *marshal_method = NULL;
1258 if (rp->target_domain_id != -1)
1259 marshal_method = mono_marshal_get_xappdomain_invoke (method);
1261 marshal_method = mono_marshal_get_remoting_invoke (method);
1262 gpointer compiled_ptr = mono_compile_method_checked (marshal_method, &error);
1263 mono_error_assert_ok (&error);
1264 return compiled_ptr;
1268 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
1270 MonoMethodSignature *sig;
1271 MonoMethodBuilder *mb;
1272 MonoMethod *res, *native;
1274 int i, pos, pos_rem;
1278 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
1281 /* we cant remote methods without this pointer */
1282 g_assert (mono_method_signature (method)->hasthis);
1284 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
1287 sig = mono_signature_no_pinvoke (method);
1289 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
1292 for (i = 0; i <= sig->param_count; i++)
1293 mono_mb_emit_ldarg (mb, i);
1295 mono_mb_emit_ldarg (mb, 0);
1296 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1298 if (mono_marshal_supports_fast_xdomain (method)) {
1299 mono_mb_emit_ldarg (mb, 0);
1300 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
1302 /* wrapper for cross app domain calls */
1303 native = mono_marshal_get_xappdomain_invoke (method);
1304 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
1305 mono_mb_emit_byte (mb, CEE_RET);
1307 mono_mb_patch_branch (mb, pos_rem);
1309 /* wrapper for normal remote calls */
1310 native = mono_marshal_get_remoting_invoke (method);
1311 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
1312 mono_mb_emit_byte (mb, CEE_RET);
1315 mono_mb_patch_branch (mb, pos);
1316 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
1317 mono_mb_emit_byte (mb, CEE_RET);
1320 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1321 info->d.remoting.method = method;
1322 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16, info);
1329 * mono_marshal_get_ldfld_wrapper:
1330 * @type: the type of the field
1332 * This method generates a function which can be use to load a field with type
1333 * @type from an object. The generated function has the following signature:
1334 * <@type> ldfld_wrapper (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, int offset)
1337 mono_marshal_get_ldfld_wrapper (MonoType *type)
1339 MonoMethodSignature *sig;
1340 MonoMethodBuilder *mb;
1346 int t, pos0, pos1 = 0;
1347 static MonoMethod* tp_load = NULL;
1349 type = mono_type_get_underlying_type (type);
1354 if (type->type == MONO_TYPE_SZARRAY) {
1355 klass = mono_defaults.array_class;
1356 } else if (type->type == MONO_TYPE_VALUETYPE) {
1357 klass = type->data.klass;
1358 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
1359 klass = mono_defaults.object_class;
1360 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
1361 klass = mono_defaults.int_class;
1362 } else if (t == MONO_TYPE_GENERICINST) {
1363 if (mono_type_generic_inst_is_valuetype (type))
1364 klass = mono_class_from_mono_type (type);
1366 klass = mono_defaults.object_class;
1368 klass = mono_class_from_mono_type (type);
1371 klass = mono_defaults.int_class;
1374 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
1375 if ((res = mono_marshal_find_in_cache (cache, klass)))
1378 #ifndef DISABLE_REMOTING
1380 tp_load = mono_class_get_method_from_name (mono_defaults.transparent_proxy_class, "LoadRemoteFieldNew", -1);
1381 g_assert (tp_load != NULL);
1385 /* we add the %p pointer value of klass because class names are not unique */
1386 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
1387 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
1390 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
1391 sig->params [0] = &mono_defaults.object_class->byval_arg;
1392 sig->params [1] = &mono_defaults.int_class->byval_arg;
1393 sig->params [2] = &mono_defaults.int_class->byval_arg;
1394 sig->params [3] = &mono_defaults.int_class->byval_arg;
1395 sig->ret = &klass->byval_arg;
1398 mono_mb_emit_ldarg (mb, 0);
1399 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1401 #ifndef DISABLE_REMOTING
1402 mono_mb_emit_ldarg (mb, 0);
1403 mono_mb_emit_ldarg (mb, 1);
1404 mono_mb_emit_ldarg (mb, 2);
1406 mono_mb_emit_managed_call (mb, tp_load, NULL);
1409 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
1410 csig->params [0] = &mono_defaults.object_class->byval_arg;
1411 csig->params [1] = &mono_defaults.int_class->byval_arg;
1412 csig->params [2] = &mono_defaults.int_class->byval_arg;
1413 csig->ret = &klass->this_arg;
1416 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
1417 mono_marshal_emit_thread_interrupt_checkpoint (mb);
1420 if (klass->valuetype) {
1421 mono_mb_emit_op (mb, CEE_UNBOX, klass);
1422 pos1 = mono_mb_emit_branch (mb, CEE_BR);
1424 mono_mb_emit_byte (mb, CEE_RET);
1428 mono_mb_patch_branch (mb, pos0);
1430 mono_mb_emit_ldarg (mb, 0);
1431 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1432 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1433 mono_mb_emit_ldarg (mb, 3);
1434 mono_mb_emit_byte (mb, CEE_ADD);
1436 if (klass->valuetype)
1437 mono_mb_patch_branch (mb, pos1);
1442 case MONO_TYPE_BOOLEAN:
1443 case MONO_TYPE_CHAR:
1452 case MONO_TYPE_ARRAY:
1453 case MONO_TYPE_SZARRAY:
1454 case MONO_TYPE_OBJECT:
1455 case MONO_TYPE_CLASS:
1456 case MONO_TYPE_STRING:
1460 case MONO_TYPE_FNPTR:
1461 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
1463 case MONO_TYPE_VALUETYPE:
1464 g_assert (!klass->enumtype);
1465 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
1467 case MONO_TYPE_GENERICINST:
1468 if (mono_type_generic_inst_is_valuetype (type)) {
1469 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
1471 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1475 case MONO_TYPE_MVAR:
1476 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
1479 g_warning ("type %x not implemented", type->type);
1480 g_assert_not_reached ();
1483 mono_mb_emit_byte (mb, CEE_RET);
1484 #endif /* DISABLE_JIT */
1486 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1487 info->d.proxy.klass = klass;
1488 res = mono_mb_create_and_cache_full (cache, klass,
1489 mb, sig, sig->param_count + 16, info, NULL);
1496 * mono_marshal_get_ldflda_wrapper:
1497 * @type: the type of the field
1499 * This method generates a function which can be used to load a field address
1500 * from an object. The generated function has the following signature:
1501 * gpointer ldflda_wrapper (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, int offset);
1504 mono_marshal_get_ldflda_wrapper (MonoType *type)
1506 MonoMethodSignature *sig;
1507 MonoMethodBuilder *mb;
1513 int t, pos0, pos1, pos2, pos3;
1515 type = mono_type_get_underlying_type (type);
1519 if (type->type == MONO_TYPE_SZARRAY) {
1520 klass = mono_defaults.array_class;
1521 } else if (type->type == MONO_TYPE_VALUETYPE) {
1522 klass = type->data.klass;
1523 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
1524 klass = mono_defaults.object_class;
1525 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
1526 klass = mono_defaults.int_class;
1527 } else if (t == MONO_TYPE_GENERICINST) {
1528 if (mono_type_generic_inst_is_valuetype (type))
1529 klass = mono_class_from_mono_type (type);
1531 klass = mono_defaults.object_class;
1533 klass = mono_class_from_mono_type (type);
1536 klass = mono_defaults.int_class;
1539 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
1540 if ((res = mono_marshal_find_in_cache (cache, klass)))
1543 /* we add the %p pointer value of klass because class names are not unique */
1544 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
1545 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
1548 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
1549 sig->params [0] = &mono_defaults.object_class->byval_arg;
1550 sig->params [1] = &mono_defaults.int_class->byval_arg;
1551 sig->params [2] = &mono_defaults.int_class->byval_arg;
1552 sig->params [3] = &mono_defaults.int_class->byval_arg;
1553 sig->ret = &mono_defaults.int_class->byval_arg;
1556 /* if typeof (this) != transparent_proxy goto pos0 */
1557 mono_mb_emit_ldarg (mb, 0);
1558 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1560 /* if same_appdomain goto pos1 */
1561 mono_mb_emit_ldarg (mb, 0);
1562 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
1564 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
1566 /* same app domain */
1567 mono_mb_patch_branch (mb, pos1);
1569 /* if typeof (this) != contextbound goto pos2 */
1570 mono_mb_emit_ldarg (mb, 0);
1571 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
1573 /* if this->rp->context == mono_context_get goto pos3 */
1574 mono_mb_emit_ldarg (mb, 0);
1575 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
1576 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1577 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRealProxy, context));
1578 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1579 mono_mb_emit_icall (mb, mono_context_get);
1580 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
1582 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
1584 mono_mb_patch_branch (mb, pos2);
1585 mono_mb_patch_branch (mb, pos3);
1587 /* return the address of the field from this->rp->unwrapped_server */
1588 mono_mb_emit_ldarg (mb, 0);
1589 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
1590 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1591 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
1592 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1593 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1594 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1595 mono_mb_emit_ldarg (mb, 3);
1596 mono_mb_emit_byte (mb, CEE_ADD);
1597 mono_mb_emit_byte (mb, CEE_RET);
1599 /* not a proxy: return the address of the field directly */
1600 mono_mb_patch_branch (mb, pos0);
1602 mono_mb_emit_ldarg (mb, 0);
1603 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1604 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1605 mono_mb_emit_ldarg (mb, 3);
1606 mono_mb_emit_byte (mb, CEE_ADD);
1608 mono_mb_emit_byte (mb, CEE_RET);
1611 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1612 info->d.proxy.klass = klass;
1613 res = mono_mb_create_and_cache_full (cache, klass,
1614 mb, sig, sig->param_count + 16,
1623 * mono_marshal_get_stfld_wrapper:
1624 * @type: the type of the field
1626 * This method generates a function which can be use to store a field with type
1627 * @type. The generated function has the following signature:
1628 * void stfld_wrapper (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, int offset, <@type> val)
1631 mono_marshal_get_stfld_wrapper (MonoType *type)
1633 MonoMethodSignature *sig;
1634 MonoMethodBuilder *mb;
1641 static MonoMethod *tp_store = NULL;
1643 type = mono_type_get_underlying_type (type);
1647 if (type->type == MONO_TYPE_SZARRAY) {
1648 klass = mono_defaults.array_class;
1649 } else if (type->type == MONO_TYPE_VALUETYPE) {
1650 klass = type->data.klass;
1651 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
1652 klass = mono_defaults.object_class;
1653 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
1654 klass = mono_defaults.int_class;
1655 } else if (t == MONO_TYPE_GENERICINST) {
1656 if (mono_type_generic_inst_is_valuetype (type))
1657 klass = mono_class_from_mono_type (type);
1659 klass = mono_defaults.object_class;
1661 klass = mono_class_from_mono_type (type);
1664 klass = mono_defaults.int_class;
1667 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
1668 if ((res = mono_marshal_find_in_cache (cache, klass)))
1671 #ifndef DISABLE_REMOTING
1673 tp_store = mono_class_get_method_from_name (mono_defaults.transparent_proxy_class, "StoreRemoteField", -1);
1674 g_assert (tp_store != NULL);
1678 /* we add the %p pointer value of klass because class names are not unique */
1679 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
1680 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
1683 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
1684 sig->params [0] = &mono_defaults.object_class->byval_arg;
1685 sig->params [1] = &mono_defaults.int_class->byval_arg;
1686 sig->params [2] = &mono_defaults.int_class->byval_arg;
1687 sig->params [3] = &mono_defaults.int_class->byval_arg;
1688 sig->params [4] = &klass->byval_arg;
1689 sig->ret = &mono_defaults.void_class->byval_arg;
1692 mono_mb_emit_ldarg (mb, 0);
1693 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1695 #ifndef DISABLE_REMOTING
1696 mono_mb_emit_ldarg (mb, 0);
1697 mono_mb_emit_ldarg (mb, 1);
1698 mono_mb_emit_ldarg (mb, 2);
1699 mono_mb_emit_ldarg (mb, 4);
1700 if (klass->valuetype)
1701 mono_mb_emit_op (mb, CEE_BOX, klass);
1703 mono_mb_emit_managed_call (mb, tp_store, NULL);
1705 mono_mb_emit_byte (mb, CEE_RET);
1708 mono_mb_patch_branch (mb, pos);
1710 mono_mb_emit_ldarg (mb, 0);
1711 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1712 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1713 mono_mb_emit_ldarg (mb, 3);
1714 mono_mb_emit_byte (mb, CEE_ADD);
1715 mono_mb_emit_ldarg (mb, 4);
1720 case MONO_TYPE_BOOLEAN:
1721 case MONO_TYPE_CHAR:
1730 case MONO_TYPE_ARRAY:
1731 case MONO_TYPE_SZARRAY:
1732 case MONO_TYPE_OBJECT:
1733 case MONO_TYPE_CLASS:
1734 case MONO_TYPE_STRING:
1738 case MONO_TYPE_FNPTR:
1739 mono_mb_emit_byte (mb, mono_type_to_stind (type));
1741 case MONO_TYPE_VALUETYPE:
1742 g_assert (!klass->enumtype);
1743 mono_mb_emit_op (mb, CEE_STOBJ, klass);
1745 case MONO_TYPE_GENERICINST:
1747 case MONO_TYPE_MVAR:
1748 mono_mb_emit_op (mb, CEE_STOBJ, klass);
1751 g_warning ("type %x not implemented", type->type);
1752 g_assert_not_reached ();
1755 mono_mb_emit_byte (mb, CEE_RET);
1758 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1759 info->d.proxy.klass = klass;
1760 res = mono_mb_create_and_cache_full (cache, klass,
1761 mb, sig, sig->param_count + 16,
1769 mono_marshal_get_proxy_cancast (MonoClass *klass)
1771 static MonoMethodSignature *isint_sig = NULL;
1775 int pos_failed, pos_end;
1776 char *name, *klass_name;
1777 MonoMethod *can_cast_to;
1778 MonoMethodDesc *desc;
1779 MonoMethodBuilder *mb;
1781 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
1782 if ((res = mono_marshal_find_in_cache (cache, klass)))
1786 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
1787 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
1788 isint_sig->ret = &mono_defaults.object_class->byval_arg;
1789 isint_sig->pinvoke = 0;
1792 klass_name = mono_type_full_name (&klass->byval_arg);
1793 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass_name);
1794 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
1795 g_free (klass_name);
1798 mb->method->save_lmf = 1;
1801 /* get the real proxy from the transparent proxy*/
1802 mono_mb_emit_ldarg (mb, 0);
1803 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
1804 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1806 /* get the reflection type from the type handle */
1807 mono_mb_emit_ptr (mb, &klass->byval_arg);
1808 mono_mb_emit_icall (mb, type_from_handle);
1810 mono_mb_emit_ldarg (mb, 0);
1812 /* make the call to CanCastTo (type, ob) */
1813 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
1814 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
1815 g_assert (can_cast_to);
1816 mono_method_desc_free (desc);
1817 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
1819 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
1821 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
1822 mono_mb_emit_ptr (mb, &klass->byval_arg);
1823 mono_mb_emit_icall (mb, type_from_handle);
1824 mono_mb_emit_ldarg (mb, 0);
1826 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
1827 mono_marshal_emit_thread_interrupt_checkpoint (mb);
1829 mono_mb_emit_ldarg (mb, 0);
1830 pos_end = mono_mb_emit_branch (mb, CEE_BR);
1834 mono_mb_patch_branch (mb, pos_failed);
1835 mono_mb_emit_byte (mb, CEE_LDNULL);
1839 mono_mb_patch_branch (mb, pos_end);
1840 mono_mb_emit_byte (mb, CEE_RET);
1843 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1844 info->d.proxy.klass = klass;
1845 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
1852 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
1856 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
1857 klass = mono_class_from_mono_type (rtype->type);
1858 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass, &error);
1859 mono_error_set_pending_exception (&error);
1862 #else /* DISABLE_REMOTING */
1865 mono_remoting_init (void)
1869 #endif /* DISABLE_REMOTING */
1871 /* mono_get_xdomain_marshal_type()
1872 * Returns the kind of marshalling that a type needs for cross domain calls.
1874 static MonoXDomainMarshalType
1875 mono_get_xdomain_marshal_type (MonoType *t)
1878 case MONO_TYPE_VOID:
1879 g_assert_not_reached ();
1883 case MONO_TYPE_BOOLEAN:
1886 case MONO_TYPE_CHAR:
1893 return MONO_MARSHAL_NONE;
1894 case MONO_TYPE_STRING:
1895 return MONO_MARSHAL_COPY;
1896 case MONO_TYPE_ARRAY:
1897 case MONO_TYPE_SZARRAY: {
1898 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
1899 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
1900 return MONO_MARSHAL_COPY;
1906 return MONO_MARSHAL_SERIALIZE;
1909 /* mono_marshal_xdomain_copy_value
1910 * Makes a copy of "val" suitable for the current domain.
1913 mono_marshal_xdomain_copy_value (MonoObject *val, MonoError *error)
1915 mono_error_init (error);
1917 if (val == NULL) return NULL;
1919 domain = mono_domain_get ();
1921 switch (mono_object_class (val)->byval_arg.type) {
1922 case MONO_TYPE_VOID:
1923 g_assert_not_reached ();
1927 case MONO_TYPE_BOOLEAN:
1930 case MONO_TYPE_CHAR:
1936 case MONO_TYPE_R8: {
1937 MonoObject *res = mono_value_box_checked (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject), error);
1941 case MONO_TYPE_STRING: {
1942 MonoString *str = (MonoString *) val;
1943 MonoObject *res = NULL;
1944 res = (MonoObject *) mono_string_new_utf16_checked (domain, mono_string_chars (str), mono_string_length (str), error);
1947 case MONO_TYPE_ARRAY:
1948 case MONO_TYPE_SZARRAY: {
1950 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
1951 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
1952 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val, error);
1953 return_val_if_nok (error, NULL);
1955 if (mt == MONO_MARSHAL_COPY) {
1956 int i, len = mono_array_length (acopy);
1957 for (i = 0; i < len; i++) {
1958 MonoObject *item = (MonoObject *)mono_array_get (acopy, gpointer, i);
1959 MonoObject *item_copy = mono_marshal_xdomain_copy_value (item, error);
1960 return_val_if_nok (error, NULL);
1961 mono_array_setref (acopy, i, item_copy);
1964 return (MonoObject *) acopy;
1973 /* mono_marshal_xdomain_copy_value
1974 * Makes a copy of "val" suitable for the current domain.
1977 ves_icall_mono_marshal_xdomain_copy_value (MonoObject *val)
1980 MonoObject *result = mono_marshal_xdomain_copy_value (val, &error);
1981 mono_error_set_pending_exception (&error);