2 * remoting.c: Remoting support
4 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
5 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
6 * Copyright 2011-2014 Xamarin, Inc (http://www.xamarin.com)
12 #ifndef DISABLE_REMOTING
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"
21 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
25 #include "mono/cil/opcode.def"
31 MONO_MARSHAL_NONE, /* No marshalling needed */
32 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
33 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
34 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
35 } MonoXDomainMarshalType;
37 struct _MonoRemotingMethods {
39 MonoMethod *invoke_with_check;
40 MonoMethod *xdomain_invoke;
41 MonoMethod *xdomain_dispatch;
44 typedef struct _MonoRemotingMethods MonoRemotingMethods;
47 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
50 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
53 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
56 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
59 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
61 static MonoReflectionType *
62 type_from_handle (MonoType *handle);
64 static MonoClass *byte_array_class;
65 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
66 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
69 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
71 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
73 mono_register_jit_icall (func, name, sig, save);
77 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
80 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
83 mono_marshal_lock_internal ();
86 g_hash_table_new (hash_func, equal_func);
87 mono_memory_barrier ();
90 mono_marshal_unlock_internal ();
96 get_cache_full (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func, GDestroyNotify key_destroy_func, GDestroyNotify value_destroy_func)
99 mono_marshal_lock_internal ();
102 g_hash_table_new_full (hash_func, equal_func, key_destroy_func, value_destroy_func);
103 mono_memory_barrier ();
106 mono_marshal_unlock_internal ();
112 mono_remoting_marshal_init (void)
116 static gboolean module_initialized = FALSE;
118 if (module_initialized)
121 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
122 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
123 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
124 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
126 klass = mono_defaults.real_proxy_class;
127 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
129 klass = mono_defaults.exception_class;
130 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
132 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
134 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
135 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
137 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
138 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
140 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
141 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
142 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
143 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
144 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
145 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
146 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
148 module_initialized = TRUE;
151 static MonoReflectionType *
152 type_from_handle (MonoType *handle)
154 MonoDomain *domain = mono_domain_get ();
155 MonoClass *klass = mono_class_from_mono_type (handle);
159 mono_class_init (klass);
160 return mono_type_get_object (domain, handle);
165 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
168 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
169 mono_mb_emit_byte (mb, CEE_LDIND_I);
170 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
171 mono_mb_emit_byte (mb, CEE_ADD);
172 mono_mb_emit_byte (mb, CEE_LDIND_I);
173 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
174 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
175 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
176 pos = mono_mb_emit_branch (mb, branch_code);
181 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
184 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
185 mono_mb_emit_byte (mb, CEE_LDIND_REF);
186 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
187 mono_mb_emit_byte (mb, CEE_LDIND_I4);
188 mono_mb_emit_icon (mb, -1);
189 pos = mono_mb_emit_branch (mb, branch_code);
194 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
196 static int offset = -1;
200 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
202 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
203 mono_mb_emit_byte (mb, CEE_LDIND_REF);
204 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
205 mono_mb_emit_byte (mb, CEE_LDIND_REF);
206 mono_mb_emit_ldflda (mb, offset);
207 mono_mb_emit_byte (mb, CEE_LDIND_U1);
208 mono_mb_emit_icon (mb, mask);
209 mono_mb_emit_byte (mb, CEE_AND);
210 mono_mb_emit_icon (mb, 0);
211 return mono_mb_emit_branch (mb, branch_code);
213 #endif /* !DISABLE_JIT */
215 static inline MonoMethod*
216 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
218 MonoMethod *res = NULL;
219 MonoRemotingMethods *wrps;
221 mono_marshal_lock_internal ();
222 if (method->klass->image->remoting_invoke_cache)
223 wrps = g_hash_table_lookup (method->klass->image->remoting_invoke_cache, method);
228 switch (wrapper_type) {
229 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
230 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
231 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
232 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
236 /* it is important to do the unlock after the load from wrps, since in
237 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
238 * to take the loader lock and some other thread may set the fields.
240 mono_marshal_unlock_internal ();
244 /* Create the method from the builder and place it in the cache */
245 static inline MonoMethod*
246 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
247 MonoMethodSignature *sig, int max_stack)
249 MonoMethod **res = NULL;
250 MonoRemotingMethods *wrps;
251 GHashTable *cache = get_cache_full (&key->klass->image->remoting_invoke_cache, mono_aligned_addr_hash, NULL, NULL, g_free);
253 mono_marshal_lock_internal ();
254 wrps = g_hash_table_lookup (cache, key);
256 wrps = g_new0 (MonoRemotingMethods, 1);
257 g_hash_table_insert (cache, key, wrps);
260 switch (mb->method->wrapper_type) {
261 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
262 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
263 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
264 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
265 default: g_assert_not_reached (); break;
267 mono_marshal_unlock_internal ();
271 newm = mono_mb_create_method (mb, sig, max_stack);
273 mono_marshal_lock_internal ();
276 mono_marshal_set_wrapper_info (*res, key);
277 mono_marshal_unlock_internal ();
279 mono_marshal_unlock_internal ();
280 mono_free_method (newm);
288 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
290 MonoMethodMessage *msg;
291 MonoTransparentProxy *this;
292 MonoObject *res, *exc;
295 this = *((MonoTransparentProxy **)params [0]);
298 g_assert (((MonoObject *)this)->vtable->klass == mono_defaults.transparent_proxy_class);
300 /* skip the this pointer */
303 if (mono_class_is_contextbound (this->remote_class->proxy_class) && this->rp->context == (MonoObject *) mono_context_get ())
306 MonoMethodSignature *sig = mono_method_signature (method);
307 int count = sig->param_count;
308 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
310 for (i=0; i<count; i++) {
311 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
312 if (class->valuetype) {
313 if (sig->params [i]->byref) {
314 mparams[i] = *((gpointer *)params [i]);
316 /* runtime_invoke expects a boxed instance */
317 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
318 mparams[i] = mono_nullable_box (params [i], class);
320 mparams[i] = params [i];
323 mparams[i] = *((gpointer**)params [i]);
327 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this): this, mparams, NULL);
330 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
332 res = mono_remoting_invoke ((MonoObject *)this->rp, msg, &exc, &out_args);
335 mono_raise_exception ((MonoException *)exc);
337 mono_method_return_message_restore (method, params, out_args);
343 mono_marshal_get_remoting_invoke (MonoMethod *method)
345 MonoMethodSignature *sig;
346 MonoMethodBuilder *mb;
352 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
355 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
357 if (mono_class_is_com_object (method->klass) || method->klass == mono_class_get_com_object_class ()) {
358 MonoVTable *vtable = mono_class_vtable (mono_domain_get (), method->klass);
359 g_assert (vtable); /*FIXME do proper error handling*/
361 if (!mono_vtable_is_remote (vtable)) {
362 return mono_cominterop_get_invoke (method);
367 sig = mono_signature_no_pinvoke (method);
369 /* we cant remote methods without this pointer */
373 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
376 mono_remoting_marshal_init ();
378 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
381 mb->method->save_lmf = 1;
383 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
385 mono_mb_emit_ptr (mb, method);
386 mono_mb_emit_ldloc (mb, params_var);
387 mono_mb_emit_icall (mb, mono_remoting_wrapper);
388 mono_marshal_emit_thread_interrupt_checkpoint (mb);
390 if (sig->ret->type == MONO_TYPE_VOID) {
391 mono_mb_emit_byte (mb, CEE_POP);
392 mono_mb_emit_byte (mb, CEE_RET);
394 mono_mb_emit_restore_result (mb, sig->ret);
398 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
404 /* mono_get_xdomain_marshal_type()
405 * Returns the kind of marshalling that a type needs for cross domain calls.
407 static MonoXDomainMarshalType
408 mono_get_xdomain_marshal_type (MonoType *t)
412 g_assert_not_reached ();
416 case MONO_TYPE_BOOLEAN:
426 return MONO_MARSHAL_NONE;
427 case MONO_TYPE_STRING:
428 return MONO_MARSHAL_COPY;
429 case MONO_TYPE_ARRAY:
430 case MONO_TYPE_SZARRAY: {
431 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
432 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
433 return MONO_MARSHAL_COPY;
438 return MONO_MARSHAL_SERIALIZE;
442 /* mono_marshal_xdomain_copy_value
443 * Makes a copy of "val" suitable for the current domain.
446 mono_marshal_xdomain_copy_value (MonoObject *val)
449 if (val == NULL) return NULL;
451 domain = mono_domain_get ();
453 switch (mono_object_class (val)->byval_arg.type) {
455 g_assert_not_reached ();
459 case MONO_TYPE_BOOLEAN:
469 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
471 case MONO_TYPE_STRING: {
472 MonoString *str = (MonoString *) val;
473 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
475 case MONO_TYPE_ARRAY:
476 case MONO_TYPE_SZARRAY: {
478 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
479 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
480 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
481 if (mt == MONO_MARSHAL_COPY) {
482 int i, len = mono_array_length (acopy);
483 for (i = 0; i < len; i++) {
484 MonoObject *item = mono_array_get (acopy, gpointer, i);
485 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
488 return (MonoObject *) acopy;
492 if (mono_object_class (val) == mono_defaults.stringbuilder_class) {
493 MonoStringBuilder *oldsb = (MonoStringBuilder *) val;
494 MonoStringBuilder *newsb = (MonoStringBuilder *) mono_object_new (domain, mono_defaults.stringbuilder_class);
495 MONO_OBJECT_SETREF (newsb, str, mono_string_new_utf16 (domain, mono_string_chars (oldsb->str), mono_string_length (oldsb->str)));
496 newsb->length = oldsb->length;
497 newsb->max_capacity = (gint32)0x7fffffff;
498 return (MonoObject *) newsb;
503 /* mono_marshal_xdomain_copy_out_value()
504 * Copies the contents of the src instance into the dst instance. src and dst
505 * must have the same type, and if they are arrays, the same size.
508 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
510 if (src == NULL || dst == NULL) return;
512 g_assert (mono_object_class (src) == mono_object_class (dst));
514 switch (mono_object_class (src)->byval_arg.type) {
515 case MONO_TYPE_ARRAY:
516 case MONO_TYPE_SZARRAY: {
517 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
518 if (mt == MONO_MARSHAL_SERIALIZE) return;
519 if (mt == MONO_MARSHAL_COPY) {
520 int i, len = mono_array_length ((MonoArray *)dst);
521 for (i = 0; i < len; i++) {
522 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
523 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
526 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
532 if (mono_object_class (src) == mono_defaults.stringbuilder_class) {
533 MonoStringBuilder *src_sb = (MonoStringBuilder *) src;
534 MonoStringBuilder *dst_sb = (MonoStringBuilder *) dst;
536 MONO_OBJECT_SETREF (dst_sb, str, mono_string_new_utf16 (mono_object_domain (dst), mono_string_chars (src_sb->str), mono_string_length (src_sb->str)));
537 dst_sb->cached_str = NULL;
538 dst_sb->length = src_sb->length;
543 #if !defined (DISABLE_JIT)
545 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
547 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
548 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
552 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
554 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
558 /* mono_marshal_supports_fast_xdomain()
559 * Returns TRUE if the method can use the fast xdomain wrapper.
562 mono_marshal_supports_fast_xdomain (MonoMethod *method)
564 return !mono_class_is_contextbound (method->klass) &&
565 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
569 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
571 MonoDomain *current_domain = mono_domain_get ();
572 MonoDomain *domain = mono_domain_get_by_id (id);
574 if (!domain || !mono_domain_set (domain, FALSE))
575 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
578 mono_thread_push_appdomain_ref (domain);
580 mono_thread_pop_appdomain_ref ();
582 return current_domain->domain_id;
585 #if !defined (DISABLE_JIT)
587 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
589 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
592 /* mono_marshal_emit_load_domain_method ()
593 * Loads into the stack a pointer to the code of the provided method for
594 * the current domain.
597 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
599 /* We need a pointer to the method for the running domain (not the domain
600 * that compiles the method).
602 mono_mb_emit_ptr (mb, method);
603 mono_mb_emit_icall (mb, mono_compile_method);
607 /* mono_marshal_check_domain_image ()
608 * Returns TRUE if the image is loaded in the specified
609 * application domain.
612 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
617 MonoDomain *domain = mono_domain_get_by_id (domain_id);
621 mono_domain_assemblies_lock (domain);
622 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
624 if (ass->image == image)
627 mono_domain_assemblies_unlock (domain);
632 /* mono_marshal_get_xappdomain_dispatch ()
633 * Generates a method that dispatches a method call from another domain into
634 * the current domain.
637 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
639 MonoMethodSignature *sig, *csig;
640 MonoMethodBuilder *mb;
642 int i, j, param_index, copy_locals_base;
643 MonoClass *ret_class = NULL;
644 int loc_array=0, loc_return=0, loc_serialized_exc=0;
645 MonoExceptionClause *main_clause;
647 gboolean copy_return;
649 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
652 sig = mono_method_signature (method);
653 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
656 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
657 csig->params [j++] = &mono_defaults.object_class->byval_arg;
658 csig->params [j++] = &byte_array_class->this_arg;
659 csig->params [j++] = &byte_array_class->this_arg;
660 for (i = 0; i < sig->param_count; i++) {
661 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
662 csig->params [j++] = sig->params [i];
665 csig->ret = sig->ret;
667 csig->ret = &mono_defaults.void_class->byval_arg;
669 csig->hasthis = FALSE;
671 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
672 mb->method->save_lmf = 1;
677 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
678 if (complex_count > 0)
679 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
680 if (sig->ret->type != MONO_TYPE_VOID) {
681 loc_return = mono_mb_add_local (mb, sig->ret);
682 ret_class = mono_class_from_mono_type (sig->ret);
687 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
688 main_clause->try_offset = mono_mb_get_label (mb);
690 /* Clean the call context */
692 mono_mb_emit_byte (mb, CEE_LDNULL);
693 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
694 mono_mb_emit_byte (mb, CEE_POP);
696 /* Deserialize call data */
698 mono_mb_emit_ldarg (mb, 1);
699 mono_mb_emit_byte (mb, CEE_LDIND_REF);
700 mono_mb_emit_byte (mb, CEE_DUP);
701 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
703 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
704 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
706 if (complex_count > 0)
707 mono_mb_emit_stloc (mb, loc_array);
709 mono_mb_emit_byte (mb, CEE_POP);
711 mono_mb_patch_short_branch (mb, pos);
713 /* Get the target object */
715 mono_mb_emit_ldarg (mb, 0);
716 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
718 /* Load the arguments */
720 copy_locals_base = mb->locals;
721 param_index = 3; // Index of the first non-serialized parameter of this wrapper
723 for (i = 0; i < sig->param_count; i++) {
724 MonoType *pt = sig->params [i];
725 MonoClass *pclass = mono_class_from_mono_type (pt);
726 switch (marshal_types [i]) {
727 case MONO_MARSHAL_SERIALIZE: {
728 /* take the value from the serialized array */
729 mono_mb_emit_ldloc (mb, loc_array);
730 mono_mb_emit_icon (mb, j++);
732 if (pclass->valuetype) {
733 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
734 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
736 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
739 if (pclass->valuetype) {
740 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
741 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
742 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
744 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
745 if (pclass != mono_defaults.object_class) {
746 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
752 case MONO_MARSHAL_COPY_OUT: {
753 /* Keep a local copy of the value since we need to copy it back after the call */
754 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
755 mono_mb_emit_ldarg (mb, param_index++);
756 mono_marshal_emit_xdomain_copy_value (mb, pclass);
757 mono_mb_emit_byte (mb, CEE_DUP);
758 mono_mb_emit_stloc (mb, copy_local);
761 case MONO_MARSHAL_COPY: {
762 mono_mb_emit_ldarg (mb, param_index);
764 mono_mb_emit_byte (mb, CEE_DUP);
765 mono_mb_emit_byte (mb, CEE_DUP);
766 mono_mb_emit_byte (mb, CEE_LDIND_REF);
767 mono_marshal_emit_xdomain_copy_value (mb, pclass);
768 mono_mb_emit_byte (mb, CEE_STIND_REF);
770 mono_marshal_emit_xdomain_copy_value (mb, pclass);
775 case MONO_MARSHAL_NONE:
776 mono_mb_emit_ldarg (mb, param_index++);
781 /* Make the call to the real object */
783 mono_marshal_emit_thread_force_interrupt_checkpoint (mb);
785 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
787 if (sig->ret->type != MONO_TYPE_VOID)
788 mono_mb_emit_stloc (mb, loc_return);
790 /* copy back MONO_MARSHAL_COPY_OUT parameters */
794 for (i = 0; i < sig->param_count; i++) {
795 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
796 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
797 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
798 mono_mb_emit_ldarg (mb, param_index);
799 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
804 /* Serialize the return values */
806 if (complex_out_count > 0) {
807 /* Reset parameters in the array that don't need to be serialized back */
809 for (i = 0; i < sig->param_count; i++) {
810 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
811 if (!sig->params [i]->byref) {
812 mono_mb_emit_ldloc (mb, loc_array);
813 mono_mb_emit_icon (mb, j);
814 mono_mb_emit_byte (mb, CEE_LDNULL);
815 mono_mb_emit_byte (mb, CEE_STELEM_REF);
820 /* Add the return value to the array */
822 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
823 mono_mb_emit_ldloc (mb, loc_array);
824 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
825 mono_mb_emit_ldloc (mb, loc_return);
827 g_assert (ret_class); /*FIXME properly fail here*/
828 if (ret_class->valuetype) {
829 mono_mb_emit_op (mb, CEE_BOX, ret_class);
831 mono_mb_emit_byte (mb, CEE_STELEM_REF);
836 mono_mb_emit_ldarg (mb, 1);
837 mono_mb_emit_ldloc (mb, loc_array);
838 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
839 mono_mb_emit_byte (mb, CEE_STIND_REF);
840 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
841 mono_mb_emit_ldarg (mb, 1);
842 mono_mb_emit_ldloc (mb, loc_return);
843 if (ret_class->valuetype) {
844 mono_mb_emit_op (mb, CEE_BOX, ret_class);
846 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
847 mono_mb_emit_byte (mb, CEE_STIND_REF);
849 mono_mb_emit_ldarg (mb, 1);
850 mono_mb_emit_byte (mb, CEE_LDNULL);
851 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
852 mono_mb_emit_byte (mb, CEE_STIND_REF);
855 mono_mb_emit_ldarg (mb, 2);
856 mono_mb_emit_byte (mb, CEE_LDNULL);
857 mono_mb_emit_byte (mb, CEE_STIND_REF);
858 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
860 /* Main exception catch */
861 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
862 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
863 main_clause->data.catch_class = mono_defaults.object_class;
866 main_clause->handler_offset = mono_mb_get_label (mb);
867 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
868 mono_mb_emit_stloc (mb, loc_serialized_exc);
869 mono_mb_emit_ldarg (mb, 2);
870 mono_mb_emit_ldloc (mb, loc_serialized_exc);
871 mono_mb_emit_byte (mb, CEE_STIND_REF);
872 mono_mb_emit_branch (mb, CEE_LEAVE);
873 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
876 mono_mb_patch_branch (mb, pos_leave);
879 mono_mb_emit_ldloc (mb, loc_return);
881 mono_mb_emit_byte (mb, CEE_RET);
883 mono_mb_set_clauses (mb, 1, main_clause);
886 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
892 /* mono_marshal_get_xappdomain_invoke ()
893 * Generates a fast remoting wrapper for cross app domain calls.
896 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
898 MonoMethodSignature *sig;
899 MonoMethodBuilder *mb;
901 int i, j, complex_count, complex_out_count, copy_locals_base;
903 MonoClass *ret_class = NULL;
904 MonoMethod *xdomain_method;
905 int ret_marshal_type = MONO_MARSHAL_NONE;
906 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
907 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
908 int pos, pos_dispatch, pos_noex;
909 gboolean copy_return = FALSE;
913 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
916 /* we cant remote methods without this pointer */
917 if (!mono_method_signature (method)->hasthis)
920 mono_remoting_marshal_init ();
922 if (!mono_marshal_supports_fast_xdomain (method))
923 return mono_marshal_get_remoting_invoke (method);
925 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
928 sig = mono_signature_no_pinvoke (method);
930 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
931 mb->method->save_lmf = 1;
933 /* Count the number of parameters that need to be serialized */
935 marshal_types = alloca (sizeof (int) * sig->param_count);
936 complex_count = complex_out_count = 0;
937 for (i = 0; i < sig->param_count; i++) {
938 MonoType *ptype = sig->params[i];
939 int mt = mono_get_xdomain_marshal_type (ptype);
941 /* If the [Out] attribute is applied to a parameter that can be internally copied,
942 * the copy will be made by reusing the original object instance
944 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
945 mt = MONO_MARSHAL_COPY_OUT;
946 else if (mt == MONO_MARSHAL_SERIALIZE) {
948 if (ptype->byref) complex_out_count++;
950 marshal_types [i] = mt;
953 if (sig->ret->type != MONO_TYPE_VOID) {
954 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
955 ret_class = mono_class_from_mono_type (sig->ret);
956 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
962 if (complex_count > 0)
963 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
964 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
965 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
967 loc_return = mono_mb_add_local (mb, sig->ret);
968 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
969 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
970 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
971 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
973 /* Save thread domain data */
975 mono_mb_emit_icall (mb, mono_context_get);
976 mono_mb_emit_byte (mb, CEE_DUP);
977 mono_mb_emit_stloc (mb, loc_context);
979 /* If the thread is not running in the default context, it needs to go
980 * through the whole remoting sink, since the context is going to change
982 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
983 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
985 /* Another case in which the fast path can't be used: when the target domain
986 * has a different image for the same assembly.
989 /* Get the target domain id */
991 mono_mb_emit_ldarg (mb, 0);
992 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
993 mono_mb_emit_byte (mb, CEE_LDIND_REF);
994 mono_mb_emit_byte (mb, CEE_DUP);
995 mono_mb_emit_stloc (mb, loc_real_proxy);
997 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
998 mono_mb_emit_byte (mb, CEE_LDIND_I4);
999 mono_mb_emit_stloc (mb, loc_domainid);
1001 /* Check if the target domain has the same image for the required assembly */
1003 mono_mb_emit_ldloc (mb, loc_domainid);
1004 mono_mb_emit_ptr (mb, method->klass->image);
1005 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
1006 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
1008 /* Use the whole remoting sink to dispatch this message */
1010 mono_mb_patch_short_branch (mb, pos);
1012 mono_mb_emit_ldarg (mb, 0);
1013 for (i = 0; i < sig->param_count; i++)
1014 mono_mb_emit_ldarg (mb, i + 1);
1016 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
1017 mono_mb_emit_byte (mb, CEE_RET);
1018 mono_mb_patch_short_branch (mb, pos_dispatch);
1020 /* Create the array that will hold the parameters to be serialized */
1022 if (complex_count > 0) {
1023 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 */
1024 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
1027 for (i = 0; i < sig->param_count; i++) {
1029 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
1030 pclass = mono_class_from_mono_type (sig->params[i]);
1031 mono_mb_emit_byte (mb, CEE_DUP);
1032 mono_mb_emit_icon (mb, j);
1033 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
1034 if (sig->params[i]->byref) {
1035 if (pclass->valuetype)
1036 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
1038 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1040 if (pclass->valuetype)
1041 mono_mb_emit_op (mb, CEE_BOX, pclass);
1042 mono_mb_emit_byte (mb, CEE_STELEM_REF);
1045 mono_mb_emit_stloc (mb, loc_array);
1047 /* Serialize parameters */
1049 mono_mb_emit_ldloc (mb, loc_array);
1050 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
1051 mono_mb_emit_stloc (mb, loc_serialized_data);
1053 mono_mb_emit_byte (mb, CEE_LDNULL);
1054 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
1055 mono_mb_emit_stloc (mb, loc_serialized_data);
1060 mono_mb_emit_ldloc (mb, loc_domainid);
1061 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1062 mono_marshal_emit_switch_domain (mb);
1063 mono_mb_emit_stloc (mb, loc_old_domainid);
1065 /* Load the arguments */
1067 mono_mb_emit_ldloc (mb, loc_real_proxy);
1068 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
1069 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
1071 copy_locals_base = mb->locals;
1072 for (i = 0; i < sig->param_count; i++) {
1073 switch (marshal_types [i]) {
1074 case MONO_MARSHAL_SERIALIZE:
1076 case MONO_MARSHAL_COPY: {
1077 mono_mb_emit_ldarg (mb, i+1);
1078 if (sig->params [i]->byref) {
1079 /* make a local copy of the byref parameter. The real parameter
1080 * will be updated after the xdomain call
1082 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
1083 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
1084 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1085 mono_mb_emit_stloc (mb, copy_local);
1086 mono_mb_emit_ldloc_addr (mb, copy_local);
1090 case MONO_MARSHAL_COPY_OUT:
1091 case MONO_MARSHAL_NONE:
1092 mono_mb_emit_ldarg (mb, i+1);
1097 /* Make the call to the invoke wrapper in the target domain */
1099 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
1100 mono_marshal_emit_load_domain_method (mb, xdomain_method);
1101 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
1104 mono_mb_emit_stloc (mb, loc_return);
1108 mono_mb_emit_ldloc (mb, loc_old_domainid);
1109 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1110 mono_marshal_emit_switch_domain (mb);
1111 mono_mb_emit_byte (mb, CEE_POP);
1113 /* Restore thread domain data */
1115 mono_mb_emit_ldloc (mb, loc_context);
1116 mono_mb_emit_icall (mb, mono_context_set);
1118 /* if (loc_serialized_exc != null) ... */
1120 mono_mb_emit_ldloc (mb, loc_serialized_exc);
1121 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1123 mono_mb_emit_ldloc (mb, loc_serialized_exc);
1124 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
1125 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
1126 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
1127 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
1128 mono_mb_emit_byte (mb, CEE_THROW);
1129 mono_mb_patch_short_branch (mb, pos_noex);
1131 /* copy back non-serialized output parameters */
1134 for (i = 0; i < sig->param_count; i++) {
1135 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
1136 mono_mb_emit_ldarg (mb, i + 1);
1137 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
1138 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
1139 mono_mb_emit_byte (mb, CEE_STIND_REF);
1142 /* Deserialize out parameters */
1144 if (complex_out_count > 0) {
1145 mono_mb_emit_ldloc (mb, loc_serialized_data);
1146 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
1147 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
1148 mono_mb_emit_stloc (mb, loc_array);
1150 /* Copy back output parameters and return type */
1153 for (i = 0; i < sig->param_count; i++) {
1154 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
1155 if (sig->params[i]->byref) {
1156 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
1157 mono_mb_emit_ldarg (mb, i + 1);
1158 mono_mb_emit_ldloc (mb, loc_array);
1159 mono_mb_emit_icon (mb, j);
1160 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
1161 if (pclass->valuetype) {
1162 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
1163 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
1164 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
1166 if (pclass != mono_defaults.object_class)
1167 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
1168 mono_mb_emit_byte (mb, CEE_STIND_REF);
1174 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
1175 mono_mb_emit_ldloc (mb, loc_array);
1176 mono_mb_emit_icon (mb, complex_count);
1177 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
1178 if (ret_class->valuetype) {
1179 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
1180 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
1183 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
1184 mono_mb_emit_ldloc (mb, loc_serialized_data);
1185 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
1186 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
1187 if (ret_class->valuetype) {
1188 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
1189 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
1190 } else if (ret_class != mono_defaults.object_class) {
1191 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
1194 mono_mb_emit_ldloc (mb, loc_serialized_data);
1195 mono_mb_emit_byte (mb, CEE_DUP);
1196 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1197 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
1199 mono_mb_patch_short_branch (mb, pos);
1200 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
1201 mono_mb_emit_byte (mb, CEE_POP);
1205 mono_mb_emit_ldloc (mb, loc_return);
1206 if (ret_marshal_type == MONO_MARSHAL_COPY)
1207 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
1210 mono_mb_emit_byte (mb, CEE_RET);
1211 #endif /* DISABLE_JIT */
1213 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
1220 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
1222 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
1223 return mono_marshal_get_xappdomain_invoke (method);
1224 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
1226 return mono_cominterop_get_invoke (method);
1228 g_assert_not_reached ();
1231 return mono_marshal_get_remoting_invoke (method);
1237 G_GNUC_UNUSED static gpointer
1238 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
1240 if (rp->target_domain_id != -1)
1241 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
1243 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
1247 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
1249 MonoMethodSignature *sig;
1250 MonoMethodBuilder *mb;
1251 MonoMethod *res, *native;
1252 int i, pos, pos_rem;
1256 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
1259 /* we cant remote methods without this pointer */
1260 g_assert (mono_method_signature (method)->hasthis);
1262 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
1265 sig = mono_signature_no_pinvoke (method);
1267 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
1270 for (i = 0; i <= sig->param_count; i++)
1271 mono_mb_emit_ldarg (mb, i);
1273 mono_mb_emit_ldarg (mb, 0);
1274 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1276 if (mono_marshal_supports_fast_xdomain (method)) {
1277 mono_mb_emit_ldarg (mb, 0);
1278 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
1280 /* wrapper for cross app domain calls */
1281 native = mono_marshal_get_xappdomain_invoke (method);
1282 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
1283 mono_mb_emit_byte (mb, CEE_RET);
1285 mono_mb_patch_branch (mb, pos_rem);
1287 /* wrapper for normal remote calls */
1288 native = mono_marshal_get_remoting_invoke (method);
1289 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
1290 mono_mb_emit_byte (mb, CEE_RET);
1293 mono_mb_patch_branch (mb, pos);
1294 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
1295 mono_mb_emit_byte (mb, CEE_RET);
1298 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
1305 * mono_marshal_get_ldfld_remote_wrapper:
1306 * @klass: The return type
1308 * This method generates a wrapper for calling mono_load_remote_field_new.
1309 * The return type is ignored for now, as mono_load_remote_field_new () always
1310 * returns an object. In the future, to optimize some codepaths, we might
1311 * call a different function that takes a pointer to a valuetype, instead.
1314 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
1316 MonoMethodSignature *sig, *csig;
1317 MonoMethodBuilder *mb;
1319 static MonoMethod* cached = NULL;
1321 mono_marshal_lock_internal ();
1323 mono_marshal_unlock_internal ();
1326 mono_marshal_unlock_internal ();
1328 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
1330 mb->method->save_lmf = 1;
1332 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
1333 sig->params [0] = &mono_defaults.object_class->byval_arg;
1334 sig->params [1] = &mono_defaults.int_class->byval_arg;
1335 sig->params [2] = &mono_defaults.int_class->byval_arg;
1336 sig->ret = &mono_defaults.object_class->byval_arg;
1339 mono_mb_emit_ldarg (mb, 0);
1340 mono_mb_emit_ldarg (mb, 1);
1341 mono_mb_emit_ldarg (mb, 2);
1343 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
1344 csig->params [0] = &mono_defaults.object_class->byval_arg;
1345 csig->params [1] = &mono_defaults.int_class->byval_arg;
1346 csig->params [2] = &mono_defaults.int_class->byval_arg;
1347 csig->ret = &mono_defaults.object_class->byval_arg;
1350 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
1351 mono_marshal_emit_thread_interrupt_checkpoint (mb);
1353 mono_mb_emit_byte (mb, CEE_RET);
1356 mono_marshal_lock_internal ();
1358 mono_marshal_unlock_internal ();
1361 newm = mono_mb_create (mb, sig, 4, NULL);
1362 mono_marshal_lock_internal ();
1367 mono_marshal_unlock_internal ();
1369 mono_marshal_unlock_internal ();
1370 mono_free_method (newm);
1379 * mono_marshal_get_ldfld_wrapper:
1380 * @type: the type of the field
1382 * This method generates a function which can be use to load a field with type
1383 * @type from an object. The generated function has the following signature:
1384 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
1387 mono_marshal_get_ldfld_wrapper (MonoType *type)
1389 MonoMethodSignature *sig;
1390 MonoMethodBuilder *mb;
1396 int t, pos0, pos1 = 0;
1398 type = mono_type_get_underlying_type (type);
1403 if (type->type == MONO_TYPE_SZARRAY) {
1404 klass = mono_defaults.array_class;
1405 } else if (type->type == MONO_TYPE_VALUETYPE) {
1406 klass = type->data.klass;
1407 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
1408 klass = mono_defaults.object_class;
1409 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
1410 klass = mono_defaults.int_class;
1411 } else if (t == MONO_TYPE_GENERICINST) {
1412 if (mono_type_generic_inst_is_valuetype (type))
1413 klass = mono_class_from_mono_type (type);
1415 klass = mono_defaults.object_class;
1417 klass = mono_class_from_mono_type (type);
1420 klass = mono_defaults.int_class;
1423 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
1424 if ((res = mono_marshal_find_in_cache (cache, klass)))
1427 /* we add the %p pointer value of klass because class names are not unique */
1428 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
1429 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
1432 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
1433 sig->params [0] = &mono_defaults.object_class->byval_arg;
1434 sig->params [1] = &mono_defaults.int_class->byval_arg;
1435 sig->params [2] = &mono_defaults.int_class->byval_arg;
1436 sig->params [3] = &mono_defaults.int_class->byval_arg;
1437 sig->ret = &klass->byval_arg;
1440 mono_mb_emit_ldarg (mb, 0);
1441 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1443 mono_mb_emit_ldarg (mb, 0);
1444 mono_mb_emit_ldarg (mb, 1);
1445 mono_mb_emit_ldarg (mb, 2);
1447 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
1450 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
1451 csig->params [0] = &mono_defaults.object_class->byval_arg;
1452 csig->params [1] = &mono_defaults.int_class->byval_arg;
1453 csig->params [2] = &mono_defaults.int_class->byval_arg;
1454 csig->ret = &klass->this_arg;
1457 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
1458 mono_marshal_emit_thread_interrupt_checkpoint (mb);
1461 if (klass->valuetype) {
1462 mono_mb_emit_op (mb, CEE_UNBOX, klass);
1463 pos1 = mono_mb_emit_branch (mb, CEE_BR);
1465 mono_mb_emit_byte (mb, CEE_RET);
1468 mono_mb_patch_branch (mb, pos0);
1470 mono_mb_emit_ldarg (mb, 0);
1471 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1472 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1473 mono_mb_emit_ldarg (mb, 3);
1474 mono_mb_emit_byte (mb, CEE_ADD);
1476 if (klass->valuetype)
1477 mono_mb_patch_branch (mb, pos1);
1482 case MONO_TYPE_BOOLEAN:
1483 case MONO_TYPE_CHAR:
1492 case MONO_TYPE_ARRAY:
1493 case MONO_TYPE_SZARRAY:
1494 case MONO_TYPE_OBJECT:
1495 case MONO_TYPE_CLASS:
1496 case MONO_TYPE_STRING:
1500 case MONO_TYPE_FNPTR:
1501 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
1503 case MONO_TYPE_VALUETYPE:
1504 g_assert (!klass->enumtype);
1505 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
1507 case MONO_TYPE_GENERICINST:
1508 if (mono_type_generic_inst_is_valuetype (type)) {
1509 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
1511 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1515 case MONO_TYPE_MVAR:
1516 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
1519 g_warning ("type %x not implemented", type->type);
1520 g_assert_not_reached ();
1523 mono_mb_emit_byte (mb, CEE_RET);
1524 #endif /* DISABLE_JIT */
1526 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1527 info->d.proxy.klass = klass;
1528 res = mono_mb_create_and_cache_full (cache, klass,
1529 mb, sig, sig->param_count + 16, info, NULL);
1536 * mono_marshal_get_ldflda_wrapper:
1537 * @type: the type of the field
1539 * This method generates a function which can be used to load a field address
1540 * from an object. The generated function has the following signature:
1541 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
1544 mono_marshal_get_ldflda_wrapper (MonoType *type)
1546 MonoMethodSignature *sig;
1547 MonoMethodBuilder *mb;
1553 int t, pos0, pos1, pos2, pos3;
1555 type = mono_type_get_underlying_type (type);
1559 if (type->type == MONO_TYPE_SZARRAY) {
1560 klass = mono_defaults.array_class;
1561 } else if (type->type == MONO_TYPE_VALUETYPE) {
1562 klass = type->data.klass;
1563 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
1564 t == MONO_TYPE_CLASS) {
1565 klass = mono_defaults.object_class;
1566 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
1567 klass = mono_defaults.int_class;
1568 } else if (t == MONO_TYPE_GENERICINST) {
1569 if (mono_type_generic_inst_is_valuetype (type))
1570 klass = mono_class_from_mono_type (type);
1572 klass = mono_defaults.object_class;
1574 klass = mono_class_from_mono_type (type);
1577 klass = mono_defaults.int_class;
1580 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
1581 if ((res = mono_marshal_find_in_cache (cache, klass)))
1584 /* we add the %p pointer value of klass because class names are not unique */
1585 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
1586 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
1589 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
1590 sig->params [0] = &mono_defaults.object_class->byval_arg;
1591 sig->params [1] = &mono_defaults.int_class->byval_arg;
1592 sig->params [2] = &mono_defaults.int_class->byval_arg;
1593 sig->params [3] = &mono_defaults.int_class->byval_arg;
1594 sig->ret = &mono_defaults.int_class->byval_arg;
1597 /* if typeof (this) != transparent_proxy goto pos0 */
1598 mono_mb_emit_ldarg (mb, 0);
1599 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1601 /* if same_appdomain goto pos1 */
1602 mono_mb_emit_ldarg (mb, 0);
1603 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
1605 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
1607 /* same app domain */
1608 mono_mb_patch_branch (mb, pos1);
1610 /* if typeof (this) != contextbound goto pos2 */
1611 mono_mb_emit_ldarg (mb, 0);
1612 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
1614 /* if this->rp->context == mono_context_get goto pos3 */
1615 mono_mb_emit_ldarg (mb, 0);
1616 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
1617 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1618 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRealProxy, context));
1619 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1620 mono_mb_emit_icall (mb, mono_context_get);
1621 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
1623 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
1625 mono_mb_patch_branch (mb, pos2);
1626 mono_mb_patch_branch (mb, pos3);
1628 /* return the address of the field from this->rp->unwrapped_server */
1629 mono_mb_emit_ldarg (mb, 0);
1630 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
1631 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1632 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
1633 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1634 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1635 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1636 mono_mb_emit_ldarg (mb, 3);
1637 mono_mb_emit_byte (mb, CEE_ADD);
1638 mono_mb_emit_byte (mb, CEE_RET);
1640 /* not a proxy: return the address of the field directly */
1641 mono_mb_patch_branch (mb, pos0);
1643 mono_mb_emit_ldarg (mb, 0);
1644 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1645 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1646 mono_mb_emit_ldarg (mb, 3);
1647 mono_mb_emit_byte (mb, CEE_ADD);
1649 mono_mb_emit_byte (mb, CEE_RET);
1652 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1653 info->d.proxy.klass = klass;
1654 res = mono_mb_create_and_cache_full (cache, klass,
1655 mb, sig, sig->param_count + 16,
1663 * mono_marshal_get_stfld_remote_wrapper:
1664 * klass: The type of the field
1666 * This function generates a wrapper for calling mono_store_remote_field_new
1667 * with the appropriate signature.
1668 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
1669 * klass argument anymore.
1672 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
1674 MonoMethodSignature *sig, *csig;
1675 MonoMethodBuilder *mb;
1677 static MonoMethod *cached = NULL;
1679 mono_marshal_lock_internal ();
1681 mono_marshal_unlock_internal ();
1684 mono_marshal_unlock_internal ();
1686 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
1688 mb->method->save_lmf = 1;
1690 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
1691 sig->params [0] = &mono_defaults.object_class->byval_arg;
1692 sig->params [1] = &mono_defaults.int_class->byval_arg;
1693 sig->params [2] = &mono_defaults.int_class->byval_arg;
1694 sig->params [3] = &mono_defaults.object_class->byval_arg;
1695 sig->ret = &mono_defaults.void_class->byval_arg;
1698 mono_mb_emit_ldarg (mb, 0);
1699 mono_mb_emit_ldarg (mb, 1);
1700 mono_mb_emit_ldarg (mb, 2);
1701 mono_mb_emit_ldarg (mb, 3);
1703 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
1704 csig->params [0] = &mono_defaults.object_class->byval_arg;
1705 csig->params [1] = &mono_defaults.int_class->byval_arg;
1706 csig->params [2] = &mono_defaults.int_class->byval_arg;
1707 csig->params [3] = &mono_defaults.object_class->byval_arg;
1708 csig->ret = &mono_defaults.void_class->byval_arg;
1711 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
1712 mono_marshal_emit_thread_interrupt_checkpoint (mb);
1714 mono_mb_emit_byte (mb, CEE_RET);
1717 mono_marshal_lock_internal ();
1719 mono_marshal_unlock_internal ();
1722 newm = mono_mb_create (mb, sig, 6, NULL);
1723 mono_marshal_lock_internal ();
1728 mono_marshal_unlock_internal ();
1730 mono_marshal_unlock_internal ();
1731 mono_free_method (newm);
1740 * mono_marshal_get_stfld_wrapper:
1741 * @type: the type of the field
1743 * This method generates a function which can be use to store a field with type
1744 * @type. The generated function has the following signature:
1745 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
1748 mono_marshal_get_stfld_wrapper (MonoType *type)
1750 MonoMethodSignature *sig;
1751 MonoMethodBuilder *mb;
1759 type = mono_type_get_underlying_type (type);
1763 if (type->type == MONO_TYPE_SZARRAY) {
1764 klass = mono_defaults.array_class;
1765 } else if (type->type == MONO_TYPE_VALUETYPE) {
1766 klass = type->data.klass;
1767 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
1768 klass = mono_defaults.object_class;
1769 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
1770 klass = mono_defaults.int_class;
1771 } else if (t == MONO_TYPE_GENERICINST) {
1772 if (mono_type_generic_inst_is_valuetype (type))
1773 klass = mono_class_from_mono_type (type);
1775 klass = mono_defaults.object_class;
1777 klass = mono_class_from_mono_type (type);
1780 klass = mono_defaults.int_class;
1783 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
1784 if ((res = mono_marshal_find_in_cache (cache, klass)))
1787 /* we add the %p pointer value of klass because class names are not unique */
1788 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
1789 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
1792 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
1793 sig->params [0] = &mono_defaults.object_class->byval_arg;
1794 sig->params [1] = &mono_defaults.int_class->byval_arg;
1795 sig->params [2] = &mono_defaults.int_class->byval_arg;
1796 sig->params [3] = &mono_defaults.int_class->byval_arg;
1797 sig->params [4] = &klass->byval_arg;
1798 sig->ret = &mono_defaults.void_class->byval_arg;
1801 mono_mb_emit_ldarg (mb, 0);
1802 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1804 mono_mb_emit_ldarg (mb, 0);
1805 mono_mb_emit_ldarg (mb, 1);
1806 mono_mb_emit_ldarg (mb, 2);
1807 mono_mb_emit_ldarg (mb, 4);
1808 if (klass->valuetype)
1809 mono_mb_emit_op (mb, CEE_BOX, klass);
1811 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
1813 mono_mb_emit_byte (mb, CEE_RET);
1815 mono_mb_patch_branch (mb, pos);
1817 mono_mb_emit_ldarg (mb, 0);
1818 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1819 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1820 mono_mb_emit_ldarg (mb, 3);
1821 mono_mb_emit_byte (mb, CEE_ADD);
1822 mono_mb_emit_ldarg (mb, 4);
1827 case MONO_TYPE_BOOLEAN:
1828 case MONO_TYPE_CHAR:
1837 case MONO_TYPE_ARRAY:
1838 case MONO_TYPE_SZARRAY:
1839 case MONO_TYPE_OBJECT:
1840 case MONO_TYPE_CLASS:
1841 case MONO_TYPE_STRING:
1845 case MONO_TYPE_FNPTR:
1846 mono_mb_emit_byte (mb, mono_type_to_stind (type));
1848 case MONO_TYPE_VALUETYPE:
1849 g_assert (!klass->enumtype);
1850 mono_mb_emit_op (mb, CEE_STOBJ, klass);
1852 case MONO_TYPE_GENERICINST:
1854 case MONO_TYPE_MVAR:
1855 mono_mb_emit_op (mb, CEE_STOBJ, klass);
1858 g_warning ("type %x not implemented", type->type);
1859 g_assert_not_reached ();
1862 mono_mb_emit_byte (mb, CEE_RET);
1865 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1866 info->d.proxy.klass = klass;
1867 res = mono_mb_create_and_cache_full (cache, klass,
1868 mb, sig, sig->param_count + 16,
1876 mono_marshal_get_proxy_cancast (MonoClass *klass)
1878 static MonoMethodSignature *isint_sig = NULL;
1882 int pos_failed, pos_end;
1883 char *name, *klass_name;
1884 MonoMethod *can_cast_to;
1885 MonoMethodDesc *desc;
1886 MonoMethodBuilder *mb;
1888 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
1889 if ((res = mono_marshal_find_in_cache (cache, klass)))
1893 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
1894 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
1895 isint_sig->ret = &mono_defaults.object_class->byval_arg;
1896 isint_sig->pinvoke = 0;
1899 klass_name = mono_type_full_name (&klass->byval_arg);
1900 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass_name);
1901 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
1902 g_free (klass_name);
1905 mb->method->save_lmf = 1;
1908 /* get the real proxy from the transparent proxy*/
1909 mono_mb_emit_ldarg (mb, 0);
1910 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
1911 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1913 /* get the reflection type from the type handle */
1914 mono_mb_emit_ptr (mb, &klass->byval_arg);
1915 mono_mb_emit_icall (mb, type_from_handle);
1917 mono_mb_emit_ldarg (mb, 0);
1919 /* make the call to CanCastTo (type, ob) */
1920 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
1921 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
1922 g_assert (can_cast_to);
1923 mono_method_desc_free (desc);
1924 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
1926 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
1928 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
1929 mono_mb_emit_ptr (mb, &klass->byval_arg);
1930 mono_mb_emit_icall (mb, type_from_handle);
1931 mono_mb_emit_ldarg (mb, 0);
1933 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
1934 mono_marshal_emit_thread_interrupt_checkpoint (mb);
1936 mono_mb_emit_ldarg (mb, 0);
1937 pos_end = mono_mb_emit_branch (mb, CEE_BR);
1941 mono_mb_patch_branch (mb, pos_failed);
1942 mono_mb_emit_byte (mb, CEE_LDNULL);
1946 mono_mb_patch_branch (mb, pos_end);
1947 mono_mb_emit_byte (mb, CEE_RET);
1950 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1951 info->d.proxy.klass = klass;
1952 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
1959 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
1962 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
1963 klass = mono_class_from_mono_type (rtype->type);
1964 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
1967 #endif /* DISABLE_REMOTING */