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);
202 register_icall (mono_compile_method_icall, "mono_compile_method_icall", "ptr ptr", FALSE);
207 icalls_registered = TRUE;
209 mono_loader_unlock ();
211 module_initialized = TRUE;
214 /* This is an icall, it will return NULL and set pending exception on failure */
215 static MonoReflectionType *
216 type_from_handle (MonoType *handle)
219 MonoReflectionType *ret;
220 MonoDomain *domain = mono_domain_get ();
221 MonoClass *klass = mono_class_from_mono_type (handle);
223 mono_class_init (klass);
225 ret = mono_type_get_object_checked (domain, handle, &error);
226 mono_error_set_pending_exception (&error);
233 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
236 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
237 mono_mb_emit_byte (mb, CEE_LDIND_I);
238 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
239 mono_mb_emit_byte (mb, CEE_ADD);
240 mono_mb_emit_byte (mb, CEE_LDIND_I);
241 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
242 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
243 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
244 pos = mono_mb_emit_branch (mb, branch_code);
249 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
252 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
253 mono_mb_emit_byte (mb, CEE_LDIND_REF);
254 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
255 mono_mb_emit_byte (mb, CEE_LDIND_I4);
256 mono_mb_emit_icon (mb, -1);
257 pos = mono_mb_emit_branch (mb, branch_code);
262 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
264 static int offset = -1;
268 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
270 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
271 mono_mb_emit_byte (mb, CEE_LDIND_REF);
272 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
273 mono_mb_emit_byte (mb, CEE_LDIND_REF);
274 mono_mb_emit_ldflda (mb, offset);
275 mono_mb_emit_byte (mb, CEE_LDIND_U1);
276 mono_mb_emit_icon (mb, mask);
277 mono_mb_emit_byte (mb, CEE_AND);
278 mono_mb_emit_icon (mb, 0);
279 return mono_mb_emit_branch (mb, branch_code);
281 #endif /* !DISABLE_JIT */
283 static inline MonoMethod*
284 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
286 MonoMethod *res = NULL;
287 MonoRemotingMethods *wrps = NULL;
289 mono_marshal_lock_internal ();
290 if (mono_method_get_wrapper_cache (method)->remoting_invoke_cache)
291 wrps = (MonoRemotingMethods *)g_hash_table_lookup (mono_method_get_wrapper_cache (method)->remoting_invoke_cache, method);
294 switch (wrapper_type) {
295 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
296 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
297 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
298 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
302 /* it is important to do the unlock after the load from wrps, since in
303 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
304 * to take the loader lock and some other thread may set the fields.
306 mono_marshal_unlock_internal ();
310 /* Create the method from the builder and place it in the cache */
311 static inline MonoMethod*
312 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
313 MonoMethodSignature *sig, int max_stack, WrapperInfo *info)
315 MonoMethod **res = NULL;
316 MonoRemotingMethods *wrps;
319 cache = get_cache_full (&mono_method_get_wrapper_cache (key)->remoting_invoke_cache, mono_aligned_addr_hash, NULL, NULL, g_free);
321 mono_marshal_lock_internal ();
322 wrps = (MonoRemotingMethods *)g_hash_table_lookup (cache, key);
324 wrps = g_new0 (MonoRemotingMethods, 1);
325 g_hash_table_insert (cache, key, wrps);
328 switch (mb->method->wrapper_type) {
329 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
330 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
331 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
332 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
333 default: g_assert_not_reached (); break;
335 mono_marshal_unlock_internal ();
339 newm = mono_mb_create_method (mb, sig, max_stack);
341 mono_marshal_lock_internal ();
344 mono_marshal_set_wrapper_info (*res, info);
345 mono_marshal_unlock_internal ();
347 mono_marshal_unlock_internal ();
348 mono_free_method (newm);
356 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
359 MonoMethodMessage *msg;
360 MonoTransparentProxy *this_obj;
361 MonoObject *res, *exc;
364 this_obj = *((MonoTransparentProxy **)params [0]);
367 g_assert (((MonoObject *)this_obj)->vtable->klass == mono_defaults.transparent_proxy_class);
369 /* skip the this pointer */
372 if (mono_class_is_contextbound (this_obj->remote_class->proxy_class) && this_obj->rp->context == (MonoObject *) mono_context_get ())
375 MonoMethodSignature *sig = mono_method_signature (method);
376 int count = sig->param_count;
377 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
379 for (i=0; i<count; i++) {
380 MonoClass *klass = mono_class_from_mono_type (sig->params [i]);
381 if (klass->valuetype) {
382 if (sig->params [i]->byref) {
383 mparams[i] = *((gpointer *)params [i]);
385 /* runtime_invoke expects a boxed instance */
386 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
387 mparams[i] = mono_nullable_box ((guint8 *)params [i], klass, &error);
391 mparams[i] = params [i];
394 mparams[i] = *((gpointer**)params [i]);
398 res = mono_runtime_invoke_checked (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this_obj): this_obj, mparams, &error);
405 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL, &error);
409 res = mono_remoting_invoke ((MonoObject *)this_obj->rp, msg, &exc, &out_args, &error);
414 mono_error_init (&error);
415 mono_error_set_exception_instance (&error, (MonoException *)exc);
419 mono_method_return_message_restore (method, params, out_args, &error);
420 if (!is_ok (&error)) goto fail;
424 /* This icall will be called from managed code, and more over
425 * from a protected wrapper so interruptions such as pending
426 * exceptions will not be honored. (See
427 * is_running_protected_wrapper () in threads.c and
428 * mono_marshal_get_remoting_invoke () in remoting.c)
430 mono_error_raise_exception (&error); /* OK to throw, see note */
436 mono_marshal_get_remoting_invoke (MonoMethod *method)
438 MonoMethodSignature *sig;
439 MonoMethodBuilder *mb;
446 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
449 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
451 if (mono_class_is_com_object (method->klass) || method->klass == mono_class_try_get_com_object_class ()) {
452 MonoVTable *vtable = mono_class_vtable (mono_domain_get (), method->klass);
453 g_assert (vtable); /*FIXME do proper error handling*/
455 if (!mono_vtable_is_remote (vtable)) {
456 return mono_cominterop_get_invoke (method);
461 sig = mono_signature_no_pinvoke (method);
463 /* we cant remote methods without this pointer */
467 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
470 mono_remoting_marshal_init ();
472 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
475 mb->method->save_lmf = 1;
477 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
479 mono_mb_emit_ptr (mb, method);
480 mono_mb_emit_ldloc (mb, params_var);
481 mono_mb_emit_icall (mb, mono_remoting_wrapper);
482 // FIXME: this interrupt checkpoint code is a no-op since 'mb'
483 // is a MONO_WRAPPER_REMOTING_INVOKE, and
484 // mono_thread_interruption_checkpoint_request (FALSE)
485 // considers such wrappers "protected" and always returns
486 // NULL as if there's no pending interruption.
487 mono_marshal_emit_thread_interrupt_checkpoint (mb);
489 if (sig->ret->type == MONO_TYPE_VOID) {
490 mono_mb_emit_byte (mb, CEE_POP);
491 mono_mb_emit_byte (mb, CEE_RET);
493 mono_mb_emit_restore_result (mb, sig->ret);
497 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
498 info->d.remoting.method = method;
499 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16, info);
505 /* mono_marshal_xdomain_copy_out_value()
506 * Copies the contents of the src instance into the dst instance. src and dst
507 * must have the same type, and if they are arrays, the same size.
509 * This is an icall, it may use mono_error_set_pending_exception
512 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
515 if (src == NULL || dst == NULL) return;
517 g_assert (mono_object_class (src) == mono_object_class (dst));
519 switch (mono_object_class (src)->byval_arg.type) {
520 case MONO_TYPE_ARRAY:
521 case MONO_TYPE_SZARRAY: {
522 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
523 if (mt == MONO_MARSHAL_SERIALIZE) return;
524 if (mt == MONO_MARSHAL_COPY) {
525 int i, len = mono_array_length ((MonoArray *)dst);
526 for (i = 0; i < len; i++) {
527 MonoObject *item = (MonoObject *)mono_array_get ((MonoArray *)src, gpointer, i);
528 MonoObject *item_copy = mono_marshal_xdomain_copy_value (item, &error);
529 if (mono_error_set_pending_exception (&error))
531 mono_array_setref ((MonoArray *)dst, i, item_copy);
534 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
545 #if !defined (DISABLE_JIT)
547 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
549 mono_mb_emit_icall (mb, ves_icall_mono_marshal_xdomain_copy_value);
550 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
554 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
556 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
560 /* mono_marshal_supports_fast_xdomain()
561 * Returns TRUE if the method can use the fast xdomain wrapper.
564 mono_marshal_supports_fast_xdomain (MonoMethod *method)
566 return !mono_class_is_contextbound (method->klass) &&
567 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
571 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
573 MonoDomain *current_domain = mono_domain_get ();
574 MonoDomain *domain = mono_domain_get_by_id (id);
576 if (!domain || !mono_domain_set (domain, FALSE)) {
577 mono_set_pending_exception (mono_get_exception_appdomain_unloaded ());
582 mono_thread_push_appdomain_ref (domain);
584 mono_thread_pop_appdomain_ref ();
586 return current_domain->domain_id;
589 #if !defined (DISABLE_JIT)
591 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
593 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
597 mono_compile_method_icall (MonoMethod *method)
600 gpointer result = mono_compile_method_checked (method, &error);
601 mono_error_set_pending_exception (&error);
605 /* mono_marshal_emit_load_domain_method ()
606 * Loads into the stack a pointer to the code of the provided method for
607 * the current domain.
610 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
612 /* We need a pointer to the method for the running domain (not the domain
613 * that compiles the method).
615 mono_mb_emit_ptr (mb, method);
616 mono_mb_emit_icall (mb, mono_compile_method_icall);
620 /* mono_marshal_check_domain_image ()
621 * Returns TRUE if the image is loaded in the specified
622 * application domain.
625 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
630 MonoDomain *domain = mono_domain_get_by_id (domain_id);
634 mono_domain_assemblies_lock (domain);
635 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
636 ass = (MonoAssembly *)tmp->data;
637 if (ass->image == image)
640 mono_domain_assemblies_unlock (domain);
645 /* mono_marshal_get_xappdomain_dispatch ()
646 * Generates a method that dispatches a method call from another domain into
647 * the current domain.
650 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
652 MonoMethodSignature *sig, *csig;
653 MonoMethodBuilder *mb;
655 int i, j, param_index, copy_locals_base;
656 MonoClass *ret_class = NULL;
657 int loc_array=0, loc_return=0, loc_serialized_exc=0;
658 MonoExceptionClause *main_clause;
660 gboolean copy_return;
663 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
666 sig = mono_method_signature (method);
667 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
670 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
671 csig->params [j++] = &mono_defaults.object_class->byval_arg;
672 csig->params [j++] = &byte_array_class->this_arg;
673 csig->params [j++] = &byte_array_class->this_arg;
674 for (i = 0; i < sig->param_count; i++) {
675 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
676 csig->params [j++] = sig->params [i];
679 csig->ret = sig->ret;
681 csig->ret = &mono_defaults.void_class->byval_arg;
683 csig->hasthis = FALSE;
685 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
686 mb->method->save_lmf = 1;
691 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
692 if (complex_count > 0)
693 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
694 if (sig->ret->type != MONO_TYPE_VOID) {
695 loc_return = mono_mb_add_local (mb, sig->ret);
696 ret_class = mono_class_from_mono_type (sig->ret);
701 main_clause = (MonoExceptionClause *)mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
702 main_clause->try_offset = mono_mb_get_label (mb);
704 /* Clean the call context */
706 mono_mb_emit_byte (mb, CEE_LDNULL);
707 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
708 mono_mb_emit_byte (mb, CEE_POP);
710 /* Deserialize call data */
712 mono_mb_emit_ldarg (mb, 1);
713 mono_mb_emit_byte (mb, CEE_LDIND_REF);
714 mono_mb_emit_byte (mb, CEE_DUP);
715 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
717 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
718 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
720 if (complex_count > 0)
721 mono_mb_emit_stloc (mb, loc_array);
723 mono_mb_emit_byte (mb, CEE_POP);
725 mono_mb_patch_short_branch (mb, pos);
727 /* Get the target object */
729 mono_mb_emit_ldarg (mb, 0);
730 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
732 /* Load the arguments */
734 copy_locals_base = mb->locals;
735 param_index = 3; // Index of the first non-serialized parameter of this wrapper
737 for (i = 0; i < sig->param_count; i++) {
738 MonoType *pt = sig->params [i];
739 MonoClass *pclass = mono_class_from_mono_type (pt);
740 switch (marshal_types [i]) {
741 case MONO_MARSHAL_SERIALIZE: {
742 /* take the value from the serialized array */
743 mono_mb_emit_ldloc (mb, loc_array);
744 mono_mb_emit_icon (mb, j++);
746 if (pclass->valuetype) {
747 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
748 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
750 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
753 if (pclass->valuetype) {
754 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
755 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
756 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
758 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
759 if (pclass != mono_defaults.object_class) {
760 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
766 case MONO_MARSHAL_COPY_OUT: {
767 /* Keep a local copy of the value since we need to copy it back after the call */
768 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
769 mono_mb_emit_ldarg (mb, param_index++);
770 mono_marshal_emit_xdomain_copy_value (mb, pclass);
771 mono_mb_emit_byte (mb, CEE_DUP);
772 mono_mb_emit_stloc (mb, copy_local);
775 case MONO_MARSHAL_COPY: {
776 mono_mb_emit_ldarg (mb, param_index);
778 mono_mb_emit_byte (mb, CEE_DUP);
779 mono_mb_emit_byte (mb, CEE_DUP);
780 mono_mb_emit_byte (mb, CEE_LDIND_REF);
781 mono_marshal_emit_xdomain_copy_value (mb, pclass);
782 mono_mb_emit_byte (mb, CEE_STIND_REF);
784 mono_marshal_emit_xdomain_copy_value (mb, pclass);
789 case MONO_MARSHAL_NONE:
790 mono_mb_emit_ldarg (mb, param_index++);
795 /* Make the call to the real object */
797 mono_marshal_emit_thread_force_interrupt_checkpoint (mb);
799 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
801 if (sig->ret->type != MONO_TYPE_VOID)
802 mono_mb_emit_stloc (mb, loc_return);
804 /* copy back MONO_MARSHAL_COPY_OUT parameters */
808 for (i = 0; i < sig->param_count; i++) {
809 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
810 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
811 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
812 mono_mb_emit_ldarg (mb, param_index);
813 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
818 /* Serialize the return values */
820 if (complex_out_count > 0) {
821 /* Reset parameters in the array that don't need to be serialized back */
823 for (i = 0; i < sig->param_count; i++) {
824 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
825 if (!sig->params [i]->byref) {
826 mono_mb_emit_ldloc (mb, loc_array);
827 mono_mb_emit_icon (mb, j);
828 mono_mb_emit_byte (mb, CEE_LDNULL);
829 mono_mb_emit_byte (mb, CEE_STELEM_REF);
834 /* Add the return value to the array */
836 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
837 mono_mb_emit_ldloc (mb, loc_array);
838 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
839 mono_mb_emit_ldloc (mb, loc_return);
841 g_assert (ret_class); /*FIXME properly fail here*/
842 if (ret_class->valuetype) {
843 mono_mb_emit_op (mb, CEE_BOX, ret_class);
845 mono_mb_emit_byte (mb, CEE_STELEM_REF);
850 mono_mb_emit_ldarg (mb, 1);
851 mono_mb_emit_ldloc (mb, loc_array);
852 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
853 mono_mb_emit_byte (mb, CEE_STIND_REF);
854 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
855 mono_mb_emit_ldarg (mb, 1);
856 mono_mb_emit_ldloc (mb, loc_return);
857 if (ret_class->valuetype) {
858 mono_mb_emit_op (mb, CEE_BOX, ret_class);
860 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
861 mono_mb_emit_byte (mb, CEE_STIND_REF);
863 mono_mb_emit_ldarg (mb, 1);
864 mono_mb_emit_byte (mb, CEE_LDNULL);
865 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
866 mono_mb_emit_byte (mb, CEE_STIND_REF);
869 mono_mb_emit_ldarg (mb, 2);
870 mono_mb_emit_byte (mb, CEE_LDNULL);
871 mono_mb_emit_byte (mb, CEE_STIND_REF);
872 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
874 /* Main exception catch */
875 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
876 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
877 main_clause->data.catch_class = mono_defaults.object_class;
880 main_clause->handler_offset = mono_mb_get_label (mb);
881 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
882 mono_mb_emit_stloc (mb, loc_serialized_exc);
883 mono_mb_emit_ldarg (mb, 2);
884 mono_mb_emit_ldloc (mb, loc_serialized_exc);
885 mono_mb_emit_byte (mb, CEE_STIND_REF);
886 mono_mb_emit_branch (mb, CEE_LEAVE);
887 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
890 mono_mb_patch_branch (mb, pos_leave);
893 mono_mb_emit_ldloc (mb, loc_return);
895 mono_mb_emit_byte (mb, CEE_RET);
897 mono_mb_set_clauses (mb, 1, main_clause);
900 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
901 info->d.remoting.method = method;
902 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16, info);
908 /* mono_marshal_get_xappdomain_invoke ()
909 * Generates a fast remoting wrapper for cross app domain calls.
912 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
914 MonoMethodSignature *sig;
915 MonoMethodBuilder *mb;
917 int i, j, complex_count, complex_out_count, copy_locals_base;
919 MonoClass *ret_class = NULL;
920 MonoMethod *xdomain_method;
921 int ret_marshal_type = MONO_MARSHAL_NONE;
922 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
923 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
924 int pos, pos_dispatch, pos_noex;
925 gboolean copy_return = FALSE;
930 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
933 /* we cant remote methods without this pointer */
934 if (!mono_method_signature (method)->hasthis)
937 mono_remoting_marshal_init ();
939 if (!mono_marshal_supports_fast_xdomain (method))
940 return mono_marshal_get_remoting_invoke (method);
942 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
945 sig = mono_signature_no_pinvoke (method);
947 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
948 mb->method->save_lmf = 1;
950 /* Count the number of parameters that need to be serialized */
952 marshal_types = (int *)alloca (sizeof (int) * sig->param_count);
953 complex_count = complex_out_count = 0;
954 for (i = 0; i < sig->param_count; i++) {
955 MonoType *ptype = sig->params[i];
956 int mt = mono_get_xdomain_marshal_type (ptype);
958 /* If the [Out] attribute is applied to a parameter that can be internally copied,
959 * the copy will be made by reusing the original object instance
961 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
962 mt = MONO_MARSHAL_COPY_OUT;
963 else if (mt == MONO_MARSHAL_SERIALIZE) {
965 if (ptype->byref) complex_out_count++;
967 marshal_types [i] = mt;
970 if (sig->ret->type != MONO_TYPE_VOID) {
971 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
972 ret_class = mono_class_from_mono_type (sig->ret);
973 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
979 if (complex_count > 0)
980 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
981 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
982 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
984 loc_return = mono_mb_add_local (mb, sig->ret);
985 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
986 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
987 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
988 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
990 /* Save thread domain data */
992 mono_mb_emit_icall (mb, mono_context_get);
993 mono_mb_emit_byte (mb, CEE_DUP);
994 mono_mb_emit_stloc (mb, loc_context);
996 /* If the thread is not running in the default context, it needs to go
997 * through the whole remoting sink, since the context is going to change
999 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
1000 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
1002 /* Another case in which the fast path can't be used: when the target domain
1003 * has a different image for the same assembly.
1006 /* Get the target domain id */
1008 mono_mb_emit_ldarg (mb, 0);
1009 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
1010 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1011 mono_mb_emit_byte (mb, CEE_DUP);
1012 mono_mb_emit_stloc (mb, loc_real_proxy);
1014 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
1015 mono_mb_emit_byte (mb, CEE_LDIND_I4);
1016 mono_mb_emit_stloc (mb, loc_domainid);
1018 /* Check if the target domain has the same image for the required assembly */
1020 mono_mb_emit_ldloc (mb, loc_domainid);
1021 mono_mb_emit_ptr (mb, method->klass->image);
1022 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
1023 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
1025 /* Use the whole remoting sink to dispatch this message */
1027 mono_mb_patch_short_branch (mb, pos);
1029 mono_mb_emit_ldarg (mb, 0);
1030 for (i = 0; i < sig->param_count; i++)
1031 mono_mb_emit_ldarg (mb, i + 1);
1033 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
1034 mono_mb_emit_byte (mb, CEE_RET);
1035 mono_mb_patch_short_branch (mb, pos_dispatch);
1037 /* Create the array that will hold the parameters to be serialized */
1039 if (complex_count > 0) {
1040 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 */
1041 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
1044 for (i = 0; i < sig->param_count; i++) {
1046 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
1047 pclass = mono_class_from_mono_type (sig->params[i]);
1048 mono_mb_emit_byte (mb, CEE_DUP);
1049 mono_mb_emit_icon (mb, j);
1050 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
1051 if (sig->params[i]->byref) {
1052 if (pclass->valuetype)
1053 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
1055 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1057 if (pclass->valuetype)
1058 mono_mb_emit_op (mb, CEE_BOX, pclass);
1059 mono_mb_emit_byte (mb, CEE_STELEM_REF);
1062 mono_mb_emit_stloc (mb, loc_array);
1064 /* Serialize parameters */
1066 mono_mb_emit_ldloc (mb, loc_array);
1067 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
1068 mono_mb_emit_stloc (mb, loc_serialized_data);
1070 mono_mb_emit_byte (mb, CEE_LDNULL);
1071 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
1072 mono_mb_emit_stloc (mb, loc_serialized_data);
1077 mono_mb_emit_ldloc (mb, loc_domainid);
1078 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1079 mono_marshal_emit_switch_domain (mb);
1080 mono_mb_emit_stloc (mb, loc_old_domainid);
1082 /* Load the arguments */
1084 mono_mb_emit_ldloc (mb, loc_real_proxy);
1085 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
1086 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
1088 copy_locals_base = mb->locals;
1089 for (i = 0; i < sig->param_count; i++) {
1090 switch (marshal_types [i]) {
1091 case MONO_MARSHAL_SERIALIZE:
1093 case MONO_MARSHAL_COPY: {
1094 mono_mb_emit_ldarg (mb, i+1);
1095 if (sig->params [i]->byref) {
1096 /* make a local copy of the byref parameter. The real parameter
1097 * will be updated after the xdomain call
1099 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
1100 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
1101 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1102 mono_mb_emit_stloc (mb, copy_local);
1103 mono_mb_emit_ldloc_addr (mb, copy_local);
1107 case MONO_MARSHAL_COPY_OUT:
1108 case MONO_MARSHAL_NONE:
1109 mono_mb_emit_ldarg (mb, i+1);
1114 /* Make the call to the invoke wrapper in the target domain */
1116 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
1117 mono_marshal_emit_load_domain_method (mb, xdomain_method);
1118 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
1121 mono_mb_emit_stloc (mb, loc_return);
1125 mono_mb_emit_ldloc (mb, loc_old_domainid);
1126 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1127 mono_marshal_emit_switch_domain (mb);
1128 mono_mb_emit_byte (mb, CEE_POP);
1130 /* Restore thread domain data */
1132 mono_mb_emit_ldloc (mb, loc_context);
1133 mono_mb_emit_icall (mb, mono_context_set);
1135 /* if (loc_serialized_exc != null) ... */
1137 mono_mb_emit_ldloc (mb, loc_serialized_exc);
1138 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1140 mono_mb_emit_ldloc (mb, loc_serialized_exc);
1141 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
1142 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
1143 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
1144 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
1145 mono_mb_emit_byte (mb, CEE_THROW);
1146 mono_mb_patch_short_branch (mb, pos_noex);
1148 /* copy back non-serialized output parameters */
1151 for (i = 0; i < sig->param_count; i++) {
1152 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
1153 mono_mb_emit_ldarg (mb, i + 1);
1154 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
1155 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
1156 mono_mb_emit_byte (mb, CEE_STIND_REF);
1159 /* Deserialize out parameters */
1161 if (complex_out_count > 0) {
1162 mono_mb_emit_ldloc (mb, loc_serialized_data);
1163 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
1164 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
1165 mono_mb_emit_stloc (mb, loc_array);
1167 /* Copy back output parameters and return type */
1170 for (i = 0; i < sig->param_count; i++) {
1171 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
1172 if (sig->params[i]->byref) {
1173 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
1174 mono_mb_emit_ldarg (mb, i + 1);
1175 mono_mb_emit_ldloc (mb, loc_array);
1176 mono_mb_emit_icon (mb, j);
1177 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
1178 if (pclass->valuetype) {
1179 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
1180 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
1181 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
1183 if (pclass != mono_defaults.object_class)
1184 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
1185 mono_mb_emit_byte (mb, CEE_STIND_REF);
1191 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
1192 mono_mb_emit_ldloc (mb, loc_array);
1193 mono_mb_emit_icon (mb, complex_count);
1194 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
1195 if (ret_class->valuetype) {
1196 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
1197 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
1200 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
1201 mono_mb_emit_ldloc (mb, loc_serialized_data);
1202 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
1203 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
1204 if (ret_class->valuetype) {
1205 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
1206 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
1207 } else if (ret_class != mono_defaults.object_class) {
1208 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
1211 mono_mb_emit_ldloc (mb, loc_serialized_data);
1212 mono_mb_emit_byte (mb, CEE_DUP);
1213 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1214 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
1216 mono_mb_patch_short_branch (mb, pos);
1217 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
1218 mono_mb_emit_byte (mb, CEE_POP);
1222 mono_mb_emit_ldloc (mb, loc_return);
1223 if (ret_marshal_type == MONO_MARSHAL_COPY)
1224 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
1227 mono_mb_emit_byte (mb, CEE_RET);
1228 #endif /* DISABLE_JIT */
1230 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1231 info->d.remoting.method = method;
1232 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16, info);
1239 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
1241 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
1242 return mono_marshal_get_xappdomain_invoke (method);
1243 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
1245 return mono_cominterop_get_invoke (method);
1247 g_assert_not_reached ();
1250 return mono_marshal_get_remoting_invoke (method);
1256 G_GNUC_UNUSED static gpointer
1257 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
1260 MonoMethod *marshal_method = NULL;
1261 if (rp->target_domain_id != -1)
1262 marshal_method = mono_marshal_get_xappdomain_invoke (method);
1264 marshal_method = mono_marshal_get_remoting_invoke (method);
1265 gpointer compiled_ptr = mono_compile_method_checked (marshal_method, &error);
1266 mono_error_assert_ok (&error);
1267 return compiled_ptr;
1271 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
1273 MonoMethodSignature *sig;
1274 MonoMethodBuilder *mb;
1275 MonoMethod *res, *native;
1277 int i, pos, pos_rem;
1281 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
1284 /* we cant remote methods without this pointer */
1285 g_assert (mono_method_signature (method)->hasthis);
1287 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
1290 sig = mono_signature_no_pinvoke (method);
1292 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
1295 for (i = 0; i <= sig->param_count; i++)
1296 mono_mb_emit_ldarg (mb, i);
1298 mono_mb_emit_ldarg (mb, 0);
1299 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1301 if (mono_marshal_supports_fast_xdomain (method)) {
1302 mono_mb_emit_ldarg (mb, 0);
1303 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
1305 /* wrapper for cross app domain calls */
1306 native = mono_marshal_get_xappdomain_invoke (method);
1307 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
1308 mono_mb_emit_byte (mb, CEE_RET);
1310 mono_mb_patch_branch (mb, pos_rem);
1312 /* wrapper for normal remote calls */
1313 native = mono_marshal_get_remoting_invoke (method);
1314 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
1315 mono_mb_emit_byte (mb, CEE_RET);
1318 mono_mb_patch_branch (mb, pos);
1319 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
1320 mono_mb_emit_byte (mb, CEE_RET);
1323 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1324 info->d.remoting.method = method;
1325 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16, info);
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;
1350 static MonoMethod* tp_load = NULL;
1352 type = mono_type_get_underlying_type (type);
1357 if (type->type == MONO_TYPE_SZARRAY) {
1358 klass = mono_defaults.array_class;
1359 } else if (type->type == MONO_TYPE_VALUETYPE) {
1360 klass = type->data.klass;
1361 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
1362 klass = mono_defaults.object_class;
1363 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
1364 klass = mono_defaults.int_class;
1365 } else if (t == MONO_TYPE_GENERICINST) {
1366 if (mono_type_generic_inst_is_valuetype (type))
1367 klass = mono_class_from_mono_type (type);
1369 klass = mono_defaults.object_class;
1371 klass = mono_class_from_mono_type (type);
1374 klass = mono_defaults.int_class;
1377 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
1378 if ((res = mono_marshal_find_in_cache (cache, klass)))
1381 #ifndef DISABLE_REMOTING
1383 tp_load = mono_class_get_method_from_name (mono_defaults.transparent_proxy_class, "LoadRemoteFieldNew", -1);
1384 g_assert (tp_load != NULL);
1388 /* we add the %p pointer value of klass because class names are not unique */
1389 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
1390 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
1393 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
1394 sig->params [0] = &mono_defaults.object_class->byval_arg;
1395 sig->params [1] = &mono_defaults.int_class->byval_arg;
1396 sig->params [2] = &mono_defaults.int_class->byval_arg;
1397 sig->params [3] = &mono_defaults.int_class->byval_arg;
1398 sig->ret = &klass->byval_arg;
1401 mono_mb_emit_ldarg (mb, 0);
1402 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1404 #ifndef DISABLE_REMOTING
1405 mono_mb_emit_ldarg (mb, 0);
1406 mono_mb_emit_ldarg (mb, 1);
1407 mono_mb_emit_ldarg (mb, 2);
1409 mono_mb_emit_managed_call (mb, tp_load, NULL);
1412 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
1413 csig->params [0] = &mono_defaults.object_class->byval_arg;
1414 csig->params [1] = &mono_defaults.int_class->byval_arg;
1415 csig->params [2] = &mono_defaults.int_class->byval_arg;
1416 csig->ret = &klass->this_arg;
1419 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
1420 mono_marshal_emit_thread_interrupt_checkpoint (mb);
1423 if (klass->valuetype) {
1424 mono_mb_emit_op (mb, CEE_UNBOX, klass);
1425 pos1 = mono_mb_emit_branch (mb, CEE_BR);
1427 mono_mb_emit_byte (mb, CEE_RET);
1431 mono_mb_patch_branch (mb, pos0);
1433 mono_mb_emit_ldarg (mb, 0);
1434 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1435 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1436 mono_mb_emit_ldarg (mb, 3);
1437 mono_mb_emit_byte (mb, CEE_ADD);
1439 if (klass->valuetype)
1440 mono_mb_patch_branch (mb, pos1);
1445 case MONO_TYPE_BOOLEAN:
1446 case MONO_TYPE_CHAR:
1455 case MONO_TYPE_ARRAY:
1456 case MONO_TYPE_SZARRAY:
1457 case MONO_TYPE_OBJECT:
1458 case MONO_TYPE_CLASS:
1459 case MONO_TYPE_STRING:
1463 case MONO_TYPE_FNPTR:
1464 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
1466 case MONO_TYPE_VALUETYPE:
1467 g_assert (!klass->enumtype);
1468 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
1470 case MONO_TYPE_GENERICINST:
1471 if (mono_type_generic_inst_is_valuetype (type)) {
1472 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
1474 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1478 case MONO_TYPE_MVAR:
1479 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
1482 g_warning ("type %x not implemented", type->type);
1483 g_assert_not_reached ();
1486 mono_mb_emit_byte (mb, CEE_RET);
1487 #endif /* DISABLE_JIT */
1489 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1490 info->d.proxy.klass = klass;
1491 res = mono_mb_create_and_cache_full (cache, klass,
1492 mb, sig, sig->param_count + 16, info, NULL);
1499 * mono_marshal_get_ldflda_wrapper:
1500 * @type: the type of the field
1502 * This method generates a function which can be used to load a field address
1503 * from an object. The generated function has the following signature:
1504 * gpointer ldflda_wrapper (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, int offset);
1507 mono_marshal_get_ldflda_wrapper (MonoType *type)
1509 MonoMethodSignature *sig;
1510 MonoMethodBuilder *mb;
1516 int t, pos0, pos1, pos2, pos3;
1518 type = mono_type_get_underlying_type (type);
1522 if (type->type == MONO_TYPE_SZARRAY) {
1523 klass = mono_defaults.array_class;
1524 } else if (type->type == MONO_TYPE_VALUETYPE) {
1525 klass = type->data.klass;
1526 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
1527 klass = mono_defaults.object_class;
1528 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
1529 klass = mono_defaults.int_class;
1530 } else if (t == MONO_TYPE_GENERICINST) {
1531 if (mono_type_generic_inst_is_valuetype (type))
1532 klass = mono_class_from_mono_type (type);
1534 klass = mono_defaults.object_class;
1536 klass = mono_class_from_mono_type (type);
1539 klass = mono_defaults.int_class;
1542 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
1543 if ((res = mono_marshal_find_in_cache (cache, klass)))
1546 /* we add the %p pointer value of klass because class names are not unique */
1547 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
1548 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
1551 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
1552 sig->params [0] = &mono_defaults.object_class->byval_arg;
1553 sig->params [1] = &mono_defaults.int_class->byval_arg;
1554 sig->params [2] = &mono_defaults.int_class->byval_arg;
1555 sig->params [3] = &mono_defaults.int_class->byval_arg;
1556 sig->ret = &mono_defaults.int_class->byval_arg;
1559 /* if typeof (this) != transparent_proxy goto pos0 */
1560 mono_mb_emit_ldarg (mb, 0);
1561 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1563 /* if same_appdomain goto pos1 */
1564 mono_mb_emit_ldarg (mb, 0);
1565 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
1567 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
1569 /* same app domain */
1570 mono_mb_patch_branch (mb, pos1);
1572 /* if typeof (this) != contextbound goto pos2 */
1573 mono_mb_emit_ldarg (mb, 0);
1574 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
1576 /* if this->rp->context == mono_context_get goto pos3 */
1577 mono_mb_emit_ldarg (mb, 0);
1578 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
1579 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1580 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRealProxy, context));
1581 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1582 mono_mb_emit_icall (mb, mono_context_get);
1583 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
1585 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
1587 mono_mb_patch_branch (mb, pos2);
1588 mono_mb_patch_branch (mb, pos3);
1590 /* return the address of the field from this->rp->unwrapped_server */
1591 mono_mb_emit_ldarg (mb, 0);
1592 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
1593 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1594 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
1595 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1596 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1597 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1598 mono_mb_emit_ldarg (mb, 3);
1599 mono_mb_emit_byte (mb, CEE_ADD);
1600 mono_mb_emit_byte (mb, CEE_RET);
1602 /* not a proxy: return the address of the field directly */
1603 mono_mb_patch_branch (mb, pos0);
1605 mono_mb_emit_ldarg (mb, 0);
1606 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1607 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1608 mono_mb_emit_ldarg (mb, 3);
1609 mono_mb_emit_byte (mb, CEE_ADD);
1611 mono_mb_emit_byte (mb, CEE_RET);
1614 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1615 info->d.proxy.klass = klass;
1616 res = mono_mb_create_and_cache_full (cache, klass,
1617 mb, sig, sig->param_count + 16,
1626 * mono_marshal_get_stfld_wrapper:
1627 * @type: the type of the field
1629 * This method generates a function which can be use to store a field with type
1630 * @type. The generated function has the following signature:
1631 * void stfld_wrapper (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, int offset, <@type> val)
1634 mono_marshal_get_stfld_wrapper (MonoType *type)
1636 MonoMethodSignature *sig;
1637 MonoMethodBuilder *mb;
1644 static MonoMethod *tp_store = NULL;
1646 type = mono_type_get_underlying_type (type);
1650 if (type->type == MONO_TYPE_SZARRAY) {
1651 klass = mono_defaults.array_class;
1652 } else if (type->type == MONO_TYPE_VALUETYPE) {
1653 klass = type->data.klass;
1654 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
1655 klass = mono_defaults.object_class;
1656 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
1657 klass = mono_defaults.int_class;
1658 } else if (t == MONO_TYPE_GENERICINST) {
1659 if (mono_type_generic_inst_is_valuetype (type))
1660 klass = mono_class_from_mono_type (type);
1662 klass = mono_defaults.object_class;
1664 klass = mono_class_from_mono_type (type);
1667 klass = mono_defaults.int_class;
1670 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
1671 if ((res = mono_marshal_find_in_cache (cache, klass)))
1674 #ifndef DISABLE_REMOTING
1676 tp_store = mono_class_get_method_from_name (mono_defaults.transparent_proxy_class, "StoreRemoteField", -1);
1677 g_assert (tp_store != NULL);
1681 /* we add the %p pointer value of klass because class names are not unique */
1682 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
1683 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
1686 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
1687 sig->params [0] = &mono_defaults.object_class->byval_arg;
1688 sig->params [1] = &mono_defaults.int_class->byval_arg;
1689 sig->params [2] = &mono_defaults.int_class->byval_arg;
1690 sig->params [3] = &mono_defaults.int_class->byval_arg;
1691 sig->params [4] = &klass->byval_arg;
1692 sig->ret = &mono_defaults.void_class->byval_arg;
1695 mono_mb_emit_ldarg (mb, 0);
1696 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1698 #ifndef DISABLE_REMOTING
1699 mono_mb_emit_ldarg (mb, 0);
1700 mono_mb_emit_ldarg (mb, 1);
1701 mono_mb_emit_ldarg (mb, 2);
1702 mono_mb_emit_ldarg (mb, 4);
1703 if (klass->valuetype)
1704 mono_mb_emit_op (mb, CEE_BOX, klass);
1706 mono_mb_emit_managed_call (mb, tp_store, NULL);
1708 mono_mb_emit_byte (mb, CEE_RET);
1711 mono_mb_patch_branch (mb, pos);
1713 mono_mb_emit_ldarg (mb, 0);
1714 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1715 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1716 mono_mb_emit_ldarg (mb, 3);
1717 mono_mb_emit_byte (mb, CEE_ADD);
1718 mono_mb_emit_ldarg (mb, 4);
1723 case MONO_TYPE_BOOLEAN:
1724 case MONO_TYPE_CHAR:
1733 case MONO_TYPE_ARRAY:
1734 case MONO_TYPE_SZARRAY:
1735 case MONO_TYPE_OBJECT:
1736 case MONO_TYPE_CLASS:
1737 case MONO_TYPE_STRING:
1741 case MONO_TYPE_FNPTR:
1742 mono_mb_emit_byte (mb, mono_type_to_stind (type));
1744 case MONO_TYPE_VALUETYPE:
1745 g_assert (!klass->enumtype);
1746 mono_mb_emit_op (mb, CEE_STOBJ, klass);
1748 case MONO_TYPE_GENERICINST:
1750 case MONO_TYPE_MVAR:
1751 mono_mb_emit_op (mb, CEE_STOBJ, klass);
1754 g_warning ("type %x not implemented", type->type);
1755 g_assert_not_reached ();
1758 mono_mb_emit_byte (mb, CEE_RET);
1761 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1762 info->d.proxy.klass = klass;
1763 res = mono_mb_create_and_cache_full (cache, klass,
1764 mb, sig, sig->param_count + 16,
1772 mono_marshal_get_proxy_cancast (MonoClass *klass)
1774 static MonoMethodSignature *isint_sig = NULL;
1778 int pos_failed, pos_end;
1779 char *name, *klass_name;
1780 MonoMethod *can_cast_to;
1781 MonoMethodDesc *desc;
1782 MonoMethodBuilder *mb;
1784 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
1785 if ((res = mono_marshal_find_in_cache (cache, klass)))
1789 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
1790 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
1791 isint_sig->ret = &mono_defaults.object_class->byval_arg;
1792 isint_sig->pinvoke = 0;
1795 klass_name = mono_type_full_name (&klass->byval_arg);
1796 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass_name);
1797 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
1798 g_free (klass_name);
1801 mb->method->save_lmf = 1;
1804 /* get the real proxy from the transparent proxy*/
1805 mono_mb_emit_ldarg (mb, 0);
1806 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
1807 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1809 /* get the reflection type from the type handle */
1810 mono_mb_emit_ptr (mb, &klass->byval_arg);
1811 mono_mb_emit_icall (mb, type_from_handle);
1813 mono_mb_emit_ldarg (mb, 0);
1815 /* make the call to CanCastTo (type, ob) */
1816 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
1817 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
1818 g_assert (can_cast_to);
1819 mono_method_desc_free (desc);
1820 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
1822 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
1824 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
1825 mono_mb_emit_ptr (mb, &klass->byval_arg);
1826 mono_mb_emit_icall (mb, type_from_handle);
1827 mono_mb_emit_ldarg (mb, 0);
1829 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
1830 mono_marshal_emit_thread_interrupt_checkpoint (mb);
1832 mono_mb_emit_ldarg (mb, 0);
1833 pos_end = mono_mb_emit_branch (mb, CEE_BR);
1837 mono_mb_patch_branch (mb, pos_failed);
1838 mono_mb_emit_byte (mb, CEE_LDNULL);
1842 mono_mb_patch_branch (mb, pos_end);
1843 mono_mb_emit_byte (mb, CEE_RET);
1846 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1847 info->d.proxy.klass = klass;
1848 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
1855 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype_raw, MonoTransparentProxy *tproxy_raw)
1858 MONO_HANDLE_DCL (MonoReflectionType, rtype);
1859 MONO_HANDLE_DCL (MonoTransparentProxy, tproxy);
1860 MonoDomain *domain = MONO_HANDLE_DOMAIN (tproxy);
1861 MonoClass *klass = mono_class_from_mono_type (MONO_HANDLE_GETVAL (rtype, type));
1862 mono_upgrade_remote_class (domain, MONO_HANDLE_CAST (MonoObject, tproxy), klass, &error);
1866 #else /* DISABLE_REMOTING */
1869 mono_remoting_init (void)
1873 #endif /* DISABLE_REMOTING */
1875 /* mono_get_xdomain_marshal_type()
1876 * Returns the kind of marshalling that a type needs for cross domain calls.
1878 static MonoXDomainMarshalType
1879 mono_get_xdomain_marshal_type (MonoType *t)
1882 case MONO_TYPE_VOID:
1883 g_assert_not_reached ();
1887 case MONO_TYPE_BOOLEAN:
1890 case MONO_TYPE_CHAR:
1897 return MONO_MARSHAL_NONE;
1898 case MONO_TYPE_STRING:
1899 return MONO_MARSHAL_COPY;
1900 case MONO_TYPE_ARRAY:
1901 case MONO_TYPE_SZARRAY: {
1902 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
1903 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
1904 return MONO_MARSHAL_COPY;
1910 return MONO_MARSHAL_SERIALIZE;
1913 /* mono_marshal_xdomain_copy_value
1914 * Makes a copy of "val" suitable for the current domain.
1917 mono_marshal_xdomain_copy_value (MonoObject *val, MonoError *error)
1919 mono_error_init (error);
1921 if (val == NULL) return NULL;
1923 domain = mono_domain_get ();
1925 switch (mono_object_class (val)->byval_arg.type) {
1926 case MONO_TYPE_VOID:
1927 g_assert_not_reached ();
1931 case MONO_TYPE_BOOLEAN:
1934 case MONO_TYPE_CHAR:
1940 case MONO_TYPE_R8: {
1941 MonoObject *res = mono_value_box_checked (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject), error);
1945 case MONO_TYPE_STRING: {
1946 MonoString *str = (MonoString *) val;
1947 MonoObject *res = NULL;
1948 res = (MonoObject *) mono_string_new_utf16_checked (domain, mono_string_chars (str), mono_string_length (str), error);
1951 case MONO_TYPE_ARRAY:
1952 case MONO_TYPE_SZARRAY: {
1954 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
1955 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
1956 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val, error);
1957 return_val_if_nok (error, NULL);
1959 if (mt == MONO_MARSHAL_COPY) {
1960 int i, len = mono_array_length (acopy);
1961 for (i = 0; i < len; i++) {
1962 MonoObject *item = (MonoObject *)mono_array_get (acopy, gpointer, i);
1963 MonoObject *item_copy = mono_marshal_xdomain_copy_value (item, error);
1964 return_val_if_nok (error, NULL);
1965 mono_array_setref (acopy, i, item_copy);
1968 return (MonoObject *) acopy;
1977 /* mono_marshal_xdomain_copy_value
1978 * Makes a copy of "val" suitable for the current domain.
1981 ves_icall_mono_marshal_xdomain_copy_value (MonoObject *val)
1984 MonoObject *result = mono_marshal_xdomain_copy_value (val, &error);
1985 mono_error_set_pending_exception (&error);