2 * remoting.c: Remoting support
4 * Copyright 2002-2003 Ximian, Inc (http://www.ximian.com)
5 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
6 * Copyright 2011-2014 Xamarin, Inc (http://www.xamarin.com)
12 #include "mono/metadata/remoting.h"
13 #include "mono/metadata/marshal.h"
14 #include "mono/metadata/abi-details.h"
15 #include "mono/metadata/cominterop.h"
16 #include "mono/metadata/tabledefs.h"
17 #include "mono/metadata/exception.h"
18 #include "mono/metadata/debug-helpers.h"
21 MONO_MARSHAL_NONE, /* No marshalling needed */
22 MONO_MARSHAL_COPY, /* Can be copied by value to the new domain */
23 MONO_MARSHAL_COPY_OUT, /* out parameter that needs to be copied back to the original instance */
24 MONO_MARSHAL_SERIALIZE /* Value needs to be serialized into the new domain */
25 } MonoXDomainMarshalType;
27 #ifndef DISABLE_REMOTING
29 #define OPDEF(a,b,c,d,e,f,g,h,i,j) \
33 #include "mono/cil/opcode.def"
38 struct _MonoRemotingMethods {
40 MonoMethod *invoke_with_check;
41 MonoMethod *xdomain_invoke;
42 MonoMethod *xdomain_dispatch;
45 typedef struct _MonoRemotingMethods MonoRemotingMethods;
48 mono_remoting_wrapper (MonoMethod *method, gpointer *params);
51 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push);
54 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image);
57 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy);
59 static MonoXDomainMarshalType
60 mono_get_xdomain_marshal_type (MonoType *t);
63 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst);
65 static MonoReflectionType *
66 type_from_handle (MonoType *handle);
68 static mono_mutex_t remoting_mutex;
69 static gboolean remoting_mutex_inited;
71 static MonoClass *byte_array_class;
73 static MonoMethod *method_rs_serialize, *method_rs_deserialize, *method_exc_fixexc, *method_rs_appdomain_target;
74 static MonoMethod *method_set_call_context, *method_needs_context_sink, *method_rs_serialize_exc;
78 register_icall (gpointer func, const char *name, const char *sigstr, gboolean save)
80 MonoMethodSignature *sig = mono_create_icall_signature (sigstr);
82 mono_register_jit_icall (func, name, sig, save);
88 g_assert (remoting_mutex_inited);
89 mono_mutex_lock (&remoting_mutex);
93 remoting_unlock (void)
95 g_assert (remoting_mutex_inited);
96 mono_mutex_unlock (&remoting_mutex);
100 * Return the hash table pointed to by VAR, lazily creating it if neccesary.
103 get_cache (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func)
109 g_hash_table_new (hash_func, equal_func);
110 mono_memory_barrier ();
119 get_cache_full (GHashTable **var, GHashFunc hash_func, GCompareFunc equal_func, GDestroyNotify key_destroy_func, GDestroyNotify value_destroy_func)
125 g_hash_table_new_full (hash_func, equal_func, key_destroy_func, value_destroy_func);
126 mono_memory_barrier ();
135 mono_remoting_init (void)
137 mono_mutex_init (&remoting_mutex);
138 remoting_mutex_inited = TRUE;
142 mono_remoting_marshal_init (void)
146 static gboolean module_initialized = FALSE;
147 static gboolean icalls_registered = FALSE;
149 if (module_initialized)
152 byte_array_class = mono_array_class_get (mono_defaults.byte_class, 1);
155 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
156 method_rs_serialize = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
157 g_assert (method_rs_serialize);
158 method_rs_deserialize = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
159 g_assert (method_rs_deserialize);
160 method_rs_serialize_exc = mono_class_get_method_from_name (klass, "SerializeExceptionData", -1);
161 g_assert (method_rs_serialize_exc);
163 klass = mono_defaults.real_proxy_class;
164 method_rs_appdomain_target = mono_class_get_method_from_name (klass, "GetAppDomainTarget", -1);
165 g_assert (method_rs_appdomain_target);
167 klass = mono_defaults.exception_class;
168 method_exc_fixexc = mono_class_get_method_from_name (klass, "FixRemotingException", -1);
169 g_assert (method_exc_fixexc);
171 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Messaging", "CallContext");
172 method_set_call_context = mono_class_get_method_from_name (klass, "SetCurrentCallContext", -1);
173 g_assert (method_set_call_context);
175 klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Contexts", "Context");
176 method_needs_context_sink = mono_class_get_method_from_name (klass, "get_NeedsContextSink", -1);
177 g_assert (method_needs_context_sink);
182 if (!icalls_registered) {
183 register_icall (type_from_handle, "type_from_handle", "object ptr", FALSE);
184 register_icall (mono_marshal_set_domain_by_id, "mono_marshal_set_domain_by_id", "int32 int32 int32", FALSE);
185 register_icall (mono_marshal_check_domain_image, "mono_marshal_check_domain_image", "int32 int32 ptr", FALSE);
186 register_icall (mono_marshal_xdomain_copy_value, "mono_marshal_xdomain_copy_value", "object object", FALSE);
187 register_icall (mono_marshal_xdomain_copy_out_value, "mono_marshal_xdomain_copy_out_value", "void object object", FALSE);
188 register_icall (mono_remoting_wrapper, "mono_remoting_wrapper", "object ptr ptr", FALSE);
189 register_icall (mono_upgrade_remote_class_wrapper, "mono_upgrade_remote_class_wrapper", "void object object", FALSE);
192 icalls_registered = TRUE;
194 mono_loader_unlock ();
196 module_initialized = TRUE;
199 static MonoReflectionType *
200 type_from_handle (MonoType *handle)
202 MonoDomain *domain = mono_domain_get ();
203 MonoClass *klass = mono_class_from_mono_type (handle);
205 mono_class_init (klass);
206 return mono_type_get_object (domain, handle);
211 mono_mb_emit_proxy_check (MonoMethodBuilder *mb, int branch_code)
214 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoObject, vtable));
215 mono_mb_emit_byte (mb, CEE_LDIND_I);
216 mono_mb_emit_icon (mb, MONO_STRUCT_OFFSET (MonoVTable, klass));
217 mono_mb_emit_byte (mb, CEE_ADD);
218 mono_mb_emit_byte (mb, CEE_LDIND_I);
219 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
220 mono_mb_emit_byte (mb, CEE_MONO_CLASSCONST);
221 mono_mb_emit_i4 (mb, mono_mb_add_data (mb, mono_defaults.transparent_proxy_class));
222 pos = mono_mb_emit_branch (mb, branch_code);
227 mono_mb_emit_xdomain_check (MonoMethodBuilder *mb, int branch_code)
230 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
231 mono_mb_emit_byte (mb, CEE_LDIND_REF);
232 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
233 mono_mb_emit_byte (mb, CEE_LDIND_I4);
234 mono_mb_emit_icon (mb, -1);
235 pos = mono_mb_emit_branch (mb, branch_code);
240 mono_mb_emit_contextbound_check (MonoMethodBuilder *mb, int branch_code)
242 static int offset = -1;
246 mono_marshal_find_bitfield_offset (MonoClass, contextbound, &offset, &mask);
248 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, remote_class));
249 mono_mb_emit_byte (mb, CEE_LDIND_REF);
250 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRemoteClass, proxy_class));
251 mono_mb_emit_byte (mb, CEE_LDIND_REF);
252 mono_mb_emit_ldflda (mb, offset);
253 mono_mb_emit_byte (mb, CEE_LDIND_U1);
254 mono_mb_emit_icon (mb, mask);
255 mono_mb_emit_byte (mb, CEE_AND);
256 mono_mb_emit_icon (mb, 0);
257 return mono_mb_emit_branch (mb, branch_code);
259 #endif /* !DISABLE_JIT */
261 static inline MonoMethod*
262 mono_marshal_remoting_find_in_cache (MonoMethod *method, int wrapper_type)
264 MonoMethod *res = NULL;
265 MonoRemotingMethods *wrps = NULL;
267 mono_marshal_lock_internal ();
268 if (mono_method_get_wrapper_cache (method)->remoting_invoke_cache)
269 wrps = g_hash_table_lookup (mono_method_get_wrapper_cache (method)->remoting_invoke_cache, method);
272 switch (wrapper_type) {
273 case MONO_WRAPPER_REMOTING_INVOKE: res = wrps->invoke; break;
274 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = wrps->invoke_with_check; break;
275 case MONO_WRAPPER_XDOMAIN_INVOKE: res = wrps->xdomain_invoke; break;
276 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = wrps->xdomain_dispatch; break;
280 /* it is important to do the unlock after the load from wrps, since in
281 * mono_remoting_mb_create_and_cache () we drop the marshal lock to be able
282 * to take the loader lock and some other thread may set the fields.
284 mono_marshal_unlock_internal ();
288 /* Create the method from the builder and place it in the cache */
289 static inline MonoMethod*
290 mono_remoting_mb_create_and_cache (MonoMethod *key, MonoMethodBuilder *mb,
291 MonoMethodSignature *sig, int max_stack)
293 MonoMethod **res = NULL;
294 MonoRemotingMethods *wrps;
297 cache = get_cache_full (&mono_method_get_wrapper_cache (key)->remoting_invoke_cache, mono_aligned_addr_hash, NULL, NULL, g_free);
299 mono_marshal_lock_internal ();
300 wrps = g_hash_table_lookup (cache, key);
302 wrps = g_new0 (MonoRemotingMethods, 1);
303 g_hash_table_insert (cache, key, wrps);
306 switch (mb->method->wrapper_type) {
307 case MONO_WRAPPER_REMOTING_INVOKE: res = &wrps->invoke; break;
308 case MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK: res = &wrps->invoke_with_check; break;
309 case MONO_WRAPPER_XDOMAIN_INVOKE: res = &wrps->xdomain_invoke; break;
310 case MONO_WRAPPER_XDOMAIN_DISPATCH: res = &wrps->xdomain_dispatch; break;
311 default: g_assert_not_reached (); break;
313 mono_marshal_unlock_internal ();
317 newm = mono_mb_create_method (mb, sig, max_stack);
319 mono_marshal_lock_internal ();
322 mono_marshal_set_wrapper_info (*res, key);
323 mono_marshal_unlock_internal ();
325 mono_marshal_unlock_internal ();
326 mono_free_method (newm);
334 mono_remoting_wrapper (MonoMethod *method, gpointer *params)
336 MonoMethodMessage *msg;
337 MonoTransparentProxy *this_obj;
338 MonoObject *res, *exc;
341 this_obj = *((MonoTransparentProxy **)params [0]);
344 g_assert (((MonoObject *)this_obj)->vtable->klass == mono_defaults.transparent_proxy_class);
346 /* skip the this pointer */
349 if (mono_class_is_contextbound (this_obj->remote_class->proxy_class) && this_obj->rp->context == (MonoObject *) mono_context_get ())
352 MonoMethodSignature *sig = mono_method_signature (method);
353 int count = sig->param_count;
354 gpointer* mparams = (gpointer*) alloca(count*sizeof(gpointer));
356 for (i=0; i<count; i++) {
357 MonoClass *class = mono_class_from_mono_type (sig->params [i]);
358 if (class->valuetype) {
359 if (sig->params [i]->byref) {
360 mparams[i] = *((gpointer *)params [i]);
362 /* runtime_invoke expects a boxed instance */
363 if (mono_class_is_nullable (mono_class_from_mono_type (sig->params [i])))
364 mparams[i] = mono_nullable_box (params [i], class);
366 mparams[i] = params [i];
369 mparams[i] = *((gpointer**)params [i]);
373 return mono_runtime_invoke (method, method->klass->valuetype? mono_object_unbox ((MonoObject*)this_obj): this_obj, mparams, NULL);
376 msg = mono_method_call_message_new (method, params, NULL, NULL, NULL);
378 res = mono_remoting_invoke ((MonoObject *)this_obj->rp, msg, &exc, &out_args);
381 mono_raise_exception ((MonoException *)exc);
383 mono_method_return_message_restore (method, params, out_args);
389 mono_marshal_get_remoting_invoke (MonoMethod *method)
391 MonoMethodSignature *sig;
392 MonoMethodBuilder *mb;
398 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
401 /* this seems to be the best plase to put this, as all remoting invokes seem to get filtered through here */
403 if (mono_class_is_com_object (method->klass) || method->klass == mono_class_get_com_object_class ()) {
404 MonoVTable *vtable = mono_class_vtable (mono_domain_get (), method->klass);
405 g_assert (vtable); /*FIXME do proper error handling*/
407 if (!mono_vtable_is_remote (vtable)) {
408 return mono_cominterop_get_invoke (method);
413 sig = mono_signature_no_pinvoke (method);
415 /* we cant remote methods without this pointer */
419 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE)))
422 mono_remoting_marshal_init ();
424 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE);
427 mb->method->save_lmf = 1;
429 params_var = mono_mb_emit_save_args (mb, sig, TRUE);
431 mono_mb_emit_ptr (mb, method);
432 mono_mb_emit_ldloc (mb, params_var);
433 mono_mb_emit_icall (mb, mono_remoting_wrapper);
434 mono_marshal_emit_thread_interrupt_checkpoint (mb);
436 if (sig->ret->type == MONO_TYPE_VOID) {
437 mono_mb_emit_byte (mb, CEE_POP);
438 mono_mb_emit_byte (mb, CEE_RET);
440 mono_mb_emit_restore_result (mb, sig->ret);
444 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
450 /* mono_marshal_xdomain_copy_out_value()
451 * Copies the contents of the src instance into the dst instance. src and dst
452 * must have the same type, and if they are arrays, the same size.
455 mono_marshal_xdomain_copy_out_value (MonoObject *src, MonoObject *dst)
457 if (src == NULL || dst == NULL) return;
459 g_assert (mono_object_class (src) == mono_object_class (dst));
461 switch (mono_object_class (src)->byval_arg.type) {
462 case MONO_TYPE_ARRAY:
463 case MONO_TYPE_SZARRAY: {
464 int mt = mono_get_xdomain_marshal_type (&(mono_object_class (src)->element_class->byval_arg));
465 if (mt == MONO_MARSHAL_SERIALIZE) return;
466 if (mt == MONO_MARSHAL_COPY) {
467 int i, len = mono_array_length ((MonoArray *)dst);
468 for (i = 0; i < len; i++) {
469 MonoObject *item = mono_array_get ((MonoArray *)src, gpointer, i);
470 mono_array_setref ((MonoArray *)dst, i, mono_marshal_xdomain_copy_value (item));
473 mono_array_full_copy ((MonoArray *)src, (MonoArray *)dst);
484 #if !defined (DISABLE_JIT)
486 mono_marshal_emit_xdomain_copy_value (MonoMethodBuilder *mb, MonoClass *pclass)
488 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_value);
489 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
493 mono_marshal_emit_xdomain_copy_out_value (MonoMethodBuilder *mb, MonoClass *pclass)
495 mono_mb_emit_icall (mb, mono_marshal_xdomain_copy_out_value);
499 /* mono_marshal_supports_fast_xdomain()
500 * Returns TRUE if the method can use the fast xdomain wrapper.
503 mono_marshal_supports_fast_xdomain (MonoMethod *method)
505 return !mono_class_is_contextbound (method->klass) &&
506 !((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) && (strcmp (".ctor", method->name) == 0));
510 mono_marshal_set_domain_by_id (gint32 id, MonoBoolean push)
512 MonoDomain *current_domain = mono_domain_get ();
513 MonoDomain *domain = mono_domain_get_by_id (id);
515 if (!domain || !mono_domain_set (domain, FALSE))
516 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
519 mono_thread_push_appdomain_ref (domain);
521 mono_thread_pop_appdomain_ref ();
523 return current_domain->domain_id;
526 #if !defined (DISABLE_JIT)
528 mono_marshal_emit_switch_domain (MonoMethodBuilder *mb)
530 mono_mb_emit_icall (mb, mono_marshal_set_domain_by_id);
533 /* mono_marshal_emit_load_domain_method ()
534 * Loads into the stack a pointer to the code of the provided method for
535 * the current domain.
538 mono_marshal_emit_load_domain_method (MonoMethodBuilder *mb, MonoMethod *method)
540 /* We need a pointer to the method for the running domain (not the domain
541 * that compiles the method).
543 mono_mb_emit_ptr (mb, method);
544 mono_mb_emit_icall (mb, mono_compile_method);
548 /* mono_marshal_check_domain_image ()
549 * Returns TRUE if the image is loaded in the specified
550 * application domain.
553 mono_marshal_check_domain_image (gint32 domain_id, MonoImage *image)
558 MonoDomain *domain = mono_domain_get_by_id (domain_id);
562 mono_domain_assemblies_lock (domain);
563 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
565 if (ass->image == image)
568 mono_domain_assemblies_unlock (domain);
573 /* mono_marshal_get_xappdomain_dispatch ()
574 * Generates a method that dispatches a method call from another domain into
575 * the current domain.
578 mono_marshal_get_xappdomain_dispatch (MonoMethod *method, int *marshal_types, int complex_count, int complex_out_count, int ret_marshal_type)
580 MonoMethodSignature *sig, *csig;
581 MonoMethodBuilder *mb;
583 int i, j, param_index, copy_locals_base;
584 MonoClass *ret_class = NULL;
585 int loc_array=0, loc_return=0, loc_serialized_exc=0;
586 MonoExceptionClause *main_clause;
588 gboolean copy_return;
590 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_DISPATCH)))
593 sig = mono_method_signature (method);
594 copy_return = (sig->ret->type != MONO_TYPE_VOID && ret_marshal_type != MONO_MARSHAL_SERIALIZE);
597 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3 + sig->param_count - complex_count);
598 csig->params [j++] = &mono_defaults.object_class->byval_arg;
599 csig->params [j++] = &byte_array_class->this_arg;
600 csig->params [j++] = &byte_array_class->this_arg;
601 for (i = 0; i < sig->param_count; i++) {
602 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE)
603 csig->params [j++] = sig->params [i];
606 csig->ret = sig->ret;
608 csig->ret = &mono_defaults.void_class->byval_arg;
610 csig->hasthis = FALSE;
612 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_DISPATCH);
613 mb->method->save_lmf = 1;
618 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
619 if (complex_count > 0)
620 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
621 if (sig->ret->type != MONO_TYPE_VOID) {
622 loc_return = mono_mb_add_local (mb, sig->ret);
623 ret_class = mono_class_from_mono_type (sig->ret);
628 main_clause = mono_image_alloc0 (method->klass->image, sizeof (MonoExceptionClause));
629 main_clause->try_offset = mono_mb_get_label (mb);
631 /* Clean the call context */
633 mono_mb_emit_byte (mb, CEE_LDNULL);
634 mono_mb_emit_managed_call (mb, method_set_call_context, NULL);
635 mono_mb_emit_byte (mb, CEE_POP);
637 /* Deserialize call data */
639 mono_mb_emit_ldarg (mb, 1);
640 mono_mb_emit_byte (mb, CEE_LDIND_REF);
641 mono_mb_emit_byte (mb, CEE_DUP);
642 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
644 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
645 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
647 if (complex_count > 0)
648 mono_mb_emit_stloc (mb, loc_array);
650 mono_mb_emit_byte (mb, CEE_POP);
652 mono_mb_patch_short_branch (mb, pos);
654 /* Get the target object */
656 mono_mb_emit_ldarg (mb, 0);
657 mono_mb_emit_managed_call (mb, method_rs_appdomain_target, NULL);
659 /* Load the arguments */
661 copy_locals_base = mb->locals;
662 param_index = 3; // Index of the first non-serialized parameter of this wrapper
664 for (i = 0; i < sig->param_count; i++) {
665 MonoType *pt = sig->params [i];
666 MonoClass *pclass = mono_class_from_mono_type (pt);
667 switch (marshal_types [i]) {
668 case MONO_MARSHAL_SERIALIZE: {
669 /* take the value from the serialized array */
670 mono_mb_emit_ldloc (mb, loc_array);
671 mono_mb_emit_icon (mb, j++);
673 if (pclass->valuetype) {
674 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
675 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
677 mono_mb_emit_op (mb, CEE_LDELEMA, pclass);
680 if (pclass->valuetype) {
681 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
682 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
683 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
685 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
686 if (pclass != mono_defaults.object_class) {
687 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
693 case MONO_MARSHAL_COPY_OUT: {
694 /* Keep a local copy of the value since we need to copy it back after the call */
695 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
696 mono_mb_emit_ldarg (mb, param_index++);
697 mono_marshal_emit_xdomain_copy_value (mb, pclass);
698 mono_mb_emit_byte (mb, CEE_DUP);
699 mono_mb_emit_stloc (mb, copy_local);
702 case MONO_MARSHAL_COPY: {
703 mono_mb_emit_ldarg (mb, param_index);
705 mono_mb_emit_byte (mb, CEE_DUP);
706 mono_mb_emit_byte (mb, CEE_DUP);
707 mono_mb_emit_byte (mb, CEE_LDIND_REF);
708 mono_marshal_emit_xdomain_copy_value (mb, pclass);
709 mono_mb_emit_byte (mb, CEE_STIND_REF);
711 mono_marshal_emit_xdomain_copy_value (mb, pclass);
716 case MONO_MARSHAL_NONE:
717 mono_mb_emit_ldarg (mb, param_index++);
722 /* Make the call to the real object */
724 mono_marshal_emit_thread_force_interrupt_checkpoint (mb);
726 mono_mb_emit_op (mb, CEE_CALLVIRT, method);
728 if (sig->ret->type != MONO_TYPE_VOID)
729 mono_mb_emit_stloc (mb, loc_return);
731 /* copy back MONO_MARSHAL_COPY_OUT parameters */
735 for (i = 0; i < sig->param_count; i++) {
736 if (marshal_types [i] == MONO_MARSHAL_SERIALIZE) continue;
737 if (marshal_types [i] == MONO_MARSHAL_COPY_OUT) {
738 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
739 mono_mb_emit_ldarg (mb, param_index);
740 mono_marshal_emit_xdomain_copy_out_value (mb, mono_class_from_mono_type (sig->params [i]));
745 /* Serialize the return values */
747 if (complex_out_count > 0) {
748 /* Reset parameters in the array that don't need to be serialized back */
750 for (i = 0; i < sig->param_count; i++) {
751 if (marshal_types[i] != MONO_MARSHAL_SERIALIZE) continue;
752 if (!sig->params [i]->byref) {
753 mono_mb_emit_ldloc (mb, loc_array);
754 mono_mb_emit_icon (mb, j);
755 mono_mb_emit_byte (mb, CEE_LDNULL);
756 mono_mb_emit_byte (mb, CEE_STELEM_REF);
761 /* Add the return value to the array */
763 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
764 mono_mb_emit_ldloc (mb, loc_array);
765 mono_mb_emit_icon (mb, complex_count); /* The array has an additional slot to hold the ret value */
766 mono_mb_emit_ldloc (mb, loc_return);
768 g_assert (ret_class); /*FIXME properly fail here*/
769 if (ret_class->valuetype) {
770 mono_mb_emit_op (mb, CEE_BOX, ret_class);
772 mono_mb_emit_byte (mb, CEE_STELEM_REF);
777 mono_mb_emit_ldarg (mb, 1);
778 mono_mb_emit_ldloc (mb, loc_array);
779 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
780 mono_mb_emit_byte (mb, CEE_STIND_REF);
781 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
782 mono_mb_emit_ldarg (mb, 1);
783 mono_mb_emit_ldloc (mb, loc_return);
784 if (ret_class->valuetype) {
785 mono_mb_emit_op (mb, CEE_BOX, ret_class);
787 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
788 mono_mb_emit_byte (mb, CEE_STIND_REF);
790 mono_mb_emit_ldarg (mb, 1);
791 mono_mb_emit_byte (mb, CEE_LDNULL);
792 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
793 mono_mb_emit_byte (mb, CEE_STIND_REF);
796 mono_mb_emit_ldarg (mb, 2);
797 mono_mb_emit_byte (mb, CEE_LDNULL);
798 mono_mb_emit_byte (mb, CEE_STIND_REF);
799 pos_leave = mono_mb_emit_branch (mb, CEE_LEAVE);
801 /* Main exception catch */
802 main_clause->flags = MONO_EXCEPTION_CLAUSE_NONE;
803 main_clause->try_len = mono_mb_get_pos (mb) - main_clause->try_offset;
804 main_clause->data.catch_class = mono_defaults.object_class;
807 main_clause->handler_offset = mono_mb_get_label (mb);
808 mono_mb_emit_managed_call (mb, method_rs_serialize_exc, NULL);
809 mono_mb_emit_stloc (mb, loc_serialized_exc);
810 mono_mb_emit_ldarg (mb, 2);
811 mono_mb_emit_ldloc (mb, loc_serialized_exc);
812 mono_mb_emit_byte (mb, CEE_STIND_REF);
813 mono_mb_emit_branch (mb, CEE_LEAVE);
814 main_clause->handler_len = mono_mb_get_pos (mb) - main_clause->handler_offset;
817 mono_mb_patch_branch (mb, pos_leave);
820 mono_mb_emit_ldloc (mb, loc_return);
822 mono_mb_emit_byte (mb, CEE_RET);
824 mono_mb_set_clauses (mb, 1, main_clause);
827 res = mono_remoting_mb_create_and_cache (method, mb, csig, csig->param_count + 16);
833 /* mono_marshal_get_xappdomain_invoke ()
834 * Generates a fast remoting wrapper for cross app domain calls.
837 mono_marshal_get_xappdomain_invoke (MonoMethod *method)
839 MonoMethodSignature *sig;
840 MonoMethodBuilder *mb;
842 int i, j, complex_count, complex_out_count, copy_locals_base;
844 MonoClass *ret_class = NULL;
845 MonoMethod *xdomain_method;
846 int ret_marshal_type = MONO_MARSHAL_NONE;
847 int loc_array=0, loc_serialized_data=-1, loc_real_proxy;
848 int loc_old_domainid, loc_domainid, loc_return=0, loc_serialized_exc=0, loc_context;
849 int pos, pos_dispatch, pos_noex;
850 gboolean copy_return = FALSE;
854 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE || method->wrapper_type == MONO_WRAPPER_XDOMAIN_INVOKE)
857 /* we cant remote methods without this pointer */
858 if (!mono_method_signature (method)->hasthis)
861 mono_remoting_marshal_init ();
863 if (!mono_marshal_supports_fast_xdomain (method))
864 return mono_marshal_get_remoting_invoke (method);
866 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_XDOMAIN_INVOKE)))
869 sig = mono_signature_no_pinvoke (method);
871 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_XDOMAIN_INVOKE);
872 mb->method->save_lmf = 1;
874 /* Count the number of parameters that need to be serialized */
876 marshal_types = alloca (sizeof (int) * sig->param_count);
877 complex_count = complex_out_count = 0;
878 for (i = 0; i < sig->param_count; i++) {
879 MonoType *ptype = sig->params[i];
880 int mt = mono_get_xdomain_marshal_type (ptype);
882 /* If the [Out] attribute is applied to a parameter that can be internally copied,
883 * the copy will be made by reusing the original object instance
885 if ((ptype->attrs & PARAM_ATTRIBUTE_OUT) != 0 && mt == MONO_MARSHAL_COPY && !ptype->byref)
886 mt = MONO_MARSHAL_COPY_OUT;
887 else if (mt == MONO_MARSHAL_SERIALIZE) {
889 if (ptype->byref) complex_out_count++;
891 marshal_types [i] = mt;
894 if (sig->ret->type != MONO_TYPE_VOID) {
895 ret_marshal_type = mono_get_xdomain_marshal_type (sig->ret);
896 ret_class = mono_class_from_mono_type (sig->ret);
897 copy_return = ret_marshal_type != MONO_MARSHAL_SERIALIZE;
903 if (complex_count > 0)
904 loc_array = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
905 loc_serialized_data = mono_mb_add_local (mb, &byte_array_class->byval_arg);
906 loc_real_proxy = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
908 loc_return = mono_mb_add_local (mb, sig->ret);
909 loc_old_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
910 loc_domainid = mono_mb_add_local (mb, &mono_defaults.int32_class->byval_arg);
911 loc_serialized_exc = mono_mb_add_local (mb, &byte_array_class->byval_arg);
912 loc_context = mono_mb_add_local (mb, &mono_defaults.object_class->byval_arg);
914 /* Save thread domain data */
916 mono_mb_emit_icall (mb, mono_context_get);
917 mono_mb_emit_byte (mb, CEE_DUP);
918 mono_mb_emit_stloc (mb, loc_context);
920 /* If the thread is not running in the default context, it needs to go
921 * through the whole remoting sink, since the context is going to change
923 mono_mb_emit_managed_call (mb, method_needs_context_sink, NULL);
924 pos = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
926 /* Another case in which the fast path can't be used: when the target domain
927 * has a different image for the same assembly.
930 /* Get the target domain id */
932 mono_mb_emit_ldarg (mb, 0);
933 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
934 mono_mb_emit_byte (mb, CEE_LDIND_REF);
935 mono_mb_emit_byte (mb, CEE_DUP);
936 mono_mb_emit_stloc (mb, loc_real_proxy);
938 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRealProxy, target_domain_id));
939 mono_mb_emit_byte (mb, CEE_LDIND_I4);
940 mono_mb_emit_stloc (mb, loc_domainid);
942 /* Check if the target domain has the same image for the required assembly */
944 mono_mb_emit_ldloc (mb, loc_domainid);
945 mono_mb_emit_ptr (mb, method->klass->image);
946 mono_mb_emit_icall (mb, mono_marshal_check_domain_image);
947 pos_dispatch = mono_mb_emit_short_branch (mb, CEE_BRTRUE_S);
949 /* Use the whole remoting sink to dispatch this message */
951 mono_mb_patch_short_branch (mb, pos);
953 mono_mb_emit_ldarg (mb, 0);
954 for (i = 0; i < sig->param_count; i++)
955 mono_mb_emit_ldarg (mb, i + 1);
957 mono_mb_emit_managed_call (mb, mono_marshal_get_remoting_invoke (method), NULL);
958 mono_mb_emit_byte (mb, CEE_RET);
959 mono_mb_patch_short_branch (mb, pos_dispatch);
961 /* Create the array that will hold the parameters to be serialized */
963 if (complex_count > 0) {
964 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 */
965 mono_mb_emit_op (mb, CEE_NEWARR, mono_defaults.object_class);
968 for (i = 0; i < sig->param_count; i++) {
970 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
971 pclass = mono_class_from_mono_type (sig->params[i]);
972 mono_mb_emit_byte (mb, CEE_DUP);
973 mono_mb_emit_icon (mb, j);
974 mono_mb_emit_ldarg (mb, i + 1); /* 0=this */
975 if (sig->params[i]->byref) {
976 if (pclass->valuetype)
977 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
979 mono_mb_emit_byte (mb, CEE_LDIND_REF);
981 if (pclass->valuetype)
982 mono_mb_emit_op (mb, CEE_BOX, pclass);
983 mono_mb_emit_byte (mb, CEE_STELEM_REF);
986 mono_mb_emit_stloc (mb, loc_array);
988 /* Serialize parameters */
990 mono_mb_emit_ldloc (mb, loc_array);
991 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
992 mono_mb_emit_stloc (mb, loc_serialized_data);
994 mono_mb_emit_byte (mb, CEE_LDNULL);
995 mono_mb_emit_managed_call (mb, method_rs_serialize, NULL);
996 mono_mb_emit_stloc (mb, loc_serialized_data);
1001 mono_mb_emit_ldloc (mb, loc_domainid);
1002 mono_mb_emit_byte (mb, CEE_LDC_I4_1);
1003 mono_marshal_emit_switch_domain (mb);
1004 mono_mb_emit_stloc (mb, loc_old_domainid);
1006 /* Load the arguments */
1008 mono_mb_emit_ldloc (mb, loc_real_proxy);
1009 mono_mb_emit_ldloc_addr (mb, loc_serialized_data);
1010 mono_mb_emit_ldloc_addr (mb, loc_serialized_exc);
1012 copy_locals_base = mb->locals;
1013 for (i = 0; i < sig->param_count; i++) {
1014 switch (marshal_types [i]) {
1015 case MONO_MARSHAL_SERIALIZE:
1017 case MONO_MARSHAL_COPY: {
1018 mono_mb_emit_ldarg (mb, i+1);
1019 if (sig->params [i]->byref) {
1020 /* make a local copy of the byref parameter. The real parameter
1021 * will be updated after the xdomain call
1023 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
1024 int copy_local = mono_mb_add_local (mb, &(pclass->byval_arg));
1025 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1026 mono_mb_emit_stloc (mb, copy_local);
1027 mono_mb_emit_ldloc_addr (mb, copy_local);
1031 case MONO_MARSHAL_COPY_OUT:
1032 case MONO_MARSHAL_NONE:
1033 mono_mb_emit_ldarg (mb, i+1);
1038 /* Make the call to the invoke wrapper in the target domain */
1040 xdomain_method = mono_marshal_get_xappdomain_dispatch (method, marshal_types, complex_count, complex_out_count, ret_marshal_type);
1041 mono_marshal_emit_load_domain_method (mb, xdomain_method);
1042 mono_mb_emit_calli (mb, mono_method_signature (xdomain_method));
1045 mono_mb_emit_stloc (mb, loc_return);
1049 mono_mb_emit_ldloc (mb, loc_old_domainid);
1050 mono_mb_emit_byte (mb, CEE_LDC_I4_0);
1051 mono_marshal_emit_switch_domain (mb);
1052 mono_mb_emit_byte (mb, CEE_POP);
1054 /* Restore thread domain data */
1056 mono_mb_emit_ldloc (mb, loc_context);
1057 mono_mb_emit_icall (mb, mono_context_set);
1059 /* if (loc_serialized_exc != null) ... */
1061 mono_mb_emit_ldloc (mb, loc_serialized_exc);
1062 pos_noex = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1064 mono_mb_emit_ldloc (mb, loc_serialized_exc);
1065 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
1066 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
1067 mono_mb_emit_op (mb, CEE_CASTCLASS, mono_defaults.exception_class);
1068 mono_mb_emit_managed_call (mb, method_exc_fixexc, NULL);
1069 mono_mb_emit_byte (mb, CEE_THROW);
1070 mono_mb_patch_short_branch (mb, pos_noex);
1072 /* copy back non-serialized output parameters */
1075 for (i = 0; i < sig->param_count; i++) {
1076 if (!sig->params [i]->byref || marshal_types [i] != MONO_MARSHAL_COPY) continue;
1077 mono_mb_emit_ldarg (mb, i + 1);
1078 mono_mb_emit_ldloc (mb, copy_locals_base + (j++));
1079 mono_marshal_emit_xdomain_copy_value (mb, mono_class_from_mono_type (sig->params [i]));
1080 mono_mb_emit_byte (mb, CEE_STIND_REF);
1083 /* Deserialize out parameters */
1085 if (complex_out_count > 0) {
1086 mono_mb_emit_ldloc (mb, loc_serialized_data);
1087 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
1088 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
1089 mono_mb_emit_stloc (mb, loc_array);
1091 /* Copy back output parameters and return type */
1094 for (i = 0; i < sig->param_count; i++) {
1095 if (marshal_types [i] != MONO_MARSHAL_SERIALIZE) continue;
1096 if (sig->params[i]->byref) {
1097 MonoClass *pclass = mono_class_from_mono_type (sig->params [i]);
1098 mono_mb_emit_ldarg (mb, i + 1);
1099 mono_mb_emit_ldloc (mb, loc_array);
1100 mono_mb_emit_icon (mb, j);
1101 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
1102 if (pclass->valuetype) {
1103 mono_mb_emit_op (mb, CEE_UNBOX, pclass);
1104 mono_mb_emit_op (mb, CEE_LDOBJ, pclass);
1105 mono_mb_emit_op (mb, CEE_STOBJ, pclass);
1107 if (pclass != mono_defaults.object_class)
1108 mono_mb_emit_op (mb, CEE_CASTCLASS, pclass);
1109 mono_mb_emit_byte (mb, CEE_STIND_REF);
1115 if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
1116 mono_mb_emit_ldloc (mb, loc_array);
1117 mono_mb_emit_icon (mb, complex_count);
1118 mono_mb_emit_byte (mb, CEE_LDELEM_REF);
1119 if (ret_class->valuetype) {
1120 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
1121 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
1124 } else if (ret_marshal_type == MONO_MARSHAL_SERIALIZE) {
1125 mono_mb_emit_ldloc (mb, loc_serialized_data);
1126 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
1127 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
1128 if (ret_class->valuetype) {
1129 mono_mb_emit_op (mb, CEE_UNBOX, ret_class);
1130 mono_mb_emit_op (mb, CEE_LDOBJ, ret_class);
1131 } else if (ret_class != mono_defaults.object_class) {
1132 mono_mb_emit_op (mb, CEE_CASTCLASS, ret_class);
1135 mono_mb_emit_ldloc (mb, loc_serialized_data);
1136 mono_mb_emit_byte (mb, CEE_DUP);
1137 pos = mono_mb_emit_short_branch (mb, CEE_BRFALSE_S);
1138 mono_marshal_emit_xdomain_copy_value (mb, byte_array_class);
1140 mono_mb_patch_short_branch (mb, pos);
1141 mono_mb_emit_managed_call (mb, method_rs_deserialize, NULL);
1142 mono_mb_emit_byte (mb, CEE_POP);
1146 mono_mb_emit_ldloc (mb, loc_return);
1147 if (ret_marshal_type == MONO_MARSHAL_COPY)
1148 mono_marshal_emit_xdomain_copy_value (mb, ret_class);
1151 mono_mb_emit_byte (mb, CEE_RET);
1152 #endif /* DISABLE_JIT */
1154 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
1161 mono_marshal_get_remoting_invoke_for_target (MonoMethod *method, MonoRemotingTarget target_type)
1163 if (target_type == MONO_REMOTING_TARGET_APPDOMAIN) {
1164 return mono_marshal_get_xappdomain_invoke (method);
1165 } else if (target_type == MONO_REMOTING_TARGET_COMINTEROP) {
1167 return mono_cominterop_get_invoke (method);
1169 g_assert_not_reached ();
1172 return mono_marshal_get_remoting_invoke (method);
1178 G_GNUC_UNUSED static gpointer
1179 mono_marshal_load_remoting_wrapper (MonoRealProxy *rp, MonoMethod *method)
1181 if (rp->target_domain_id != -1)
1182 return mono_compile_method (mono_marshal_get_xappdomain_invoke (method));
1184 return mono_compile_method (mono_marshal_get_remoting_invoke (method));
1188 mono_marshal_get_remoting_invoke_with_check (MonoMethod *method)
1190 MonoMethodSignature *sig;
1191 MonoMethodBuilder *mb;
1192 MonoMethod *res, *native;
1193 int i, pos, pos_rem;
1197 if (method->wrapper_type == MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)
1200 /* we cant remote methods without this pointer */
1201 g_assert (mono_method_signature (method)->hasthis);
1203 if ((res = mono_marshal_remoting_find_in_cache (method, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK)))
1206 sig = mono_signature_no_pinvoke (method);
1208 mb = mono_mb_new (method->klass, method->name, MONO_WRAPPER_REMOTING_INVOKE_WITH_CHECK);
1211 for (i = 0; i <= sig->param_count; i++)
1212 mono_mb_emit_ldarg (mb, i);
1214 mono_mb_emit_ldarg (mb, 0);
1215 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1217 if (mono_marshal_supports_fast_xdomain (method)) {
1218 mono_mb_emit_ldarg (mb, 0);
1219 pos_rem = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
1221 /* wrapper for cross app domain calls */
1222 native = mono_marshal_get_xappdomain_invoke (method);
1223 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
1224 mono_mb_emit_byte (mb, CEE_RET);
1226 mono_mb_patch_branch (mb, pos_rem);
1228 /* wrapper for normal remote calls */
1229 native = mono_marshal_get_remoting_invoke (method);
1230 mono_mb_emit_managed_call (mb, native, mono_method_signature (native));
1231 mono_mb_emit_byte (mb, CEE_RET);
1234 mono_mb_patch_branch (mb, pos);
1235 mono_mb_emit_managed_call (mb, method, mono_method_signature (method));
1236 mono_mb_emit_byte (mb, CEE_RET);
1239 res = mono_remoting_mb_create_and_cache (method, mb, sig, sig->param_count + 16);
1246 * mono_marshal_get_ldfld_remote_wrapper:
1247 * @klass: The return type
1249 * This method generates a wrapper for calling mono_load_remote_field_new.
1250 * The return type is ignored for now, as mono_load_remote_field_new () always
1251 * returns an object. In the future, to optimize some codepaths, we might
1252 * call a different function that takes a pointer to a valuetype, instead.
1255 mono_marshal_get_ldfld_remote_wrapper (MonoClass *klass)
1257 MonoMethodSignature *sig, *csig;
1258 MonoMethodBuilder *mb;
1260 static MonoMethod* cached = NULL;
1262 mono_marshal_lock_internal ();
1264 mono_marshal_unlock_internal ();
1267 mono_marshal_unlock_internal ();
1269 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_load_remote_field_new_wrapper", MONO_WRAPPER_LDFLD_REMOTE);
1271 mb->method->save_lmf = 1;
1273 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
1274 sig->params [0] = &mono_defaults.object_class->byval_arg;
1275 sig->params [1] = &mono_defaults.int_class->byval_arg;
1276 sig->params [2] = &mono_defaults.int_class->byval_arg;
1277 sig->ret = &mono_defaults.object_class->byval_arg;
1280 mono_mb_emit_ldarg (mb, 0);
1281 mono_mb_emit_ldarg (mb, 1);
1282 mono_mb_emit_ldarg (mb, 2);
1284 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
1285 csig->params [0] = &mono_defaults.object_class->byval_arg;
1286 csig->params [1] = &mono_defaults.int_class->byval_arg;
1287 csig->params [2] = &mono_defaults.int_class->byval_arg;
1288 csig->ret = &mono_defaults.object_class->byval_arg;
1291 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
1292 mono_marshal_emit_thread_interrupt_checkpoint (mb);
1294 mono_mb_emit_byte (mb, CEE_RET);
1297 mono_marshal_lock_internal ();
1299 mono_marshal_unlock_internal ();
1302 newm = mono_mb_create (mb, sig, 4, NULL);
1303 mono_marshal_lock_internal ();
1308 mono_marshal_unlock_internal ();
1310 mono_marshal_unlock_internal ();
1311 mono_free_method (newm);
1320 * mono_marshal_get_ldfld_wrapper:
1321 * @type: the type of the field
1323 * This method generates a function which can be use to load a field with type
1324 * @type from an object. The generated function has the following signature:
1325 * <@type> ldfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset)
1328 mono_marshal_get_ldfld_wrapper (MonoType *type)
1330 MonoMethodSignature *sig;
1331 MonoMethodBuilder *mb;
1337 int t, pos0, pos1 = 0;
1339 type = mono_type_get_underlying_type (type);
1344 if (type->type == MONO_TYPE_SZARRAY) {
1345 klass = mono_defaults.array_class;
1346 } else if (type->type == MONO_TYPE_VALUETYPE) {
1347 klass = type->data.klass;
1348 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
1349 klass = mono_defaults.object_class;
1350 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
1351 klass = mono_defaults.int_class;
1352 } else if (t == MONO_TYPE_GENERICINST) {
1353 if (mono_type_generic_inst_is_valuetype (type))
1354 klass = mono_class_from_mono_type (type);
1356 klass = mono_defaults.object_class;
1358 klass = mono_class_from_mono_type (type);
1361 klass = mono_defaults.int_class;
1364 cache = get_cache (&klass->image->ldfld_wrapper_cache, mono_aligned_addr_hash, NULL);
1365 if ((res = mono_marshal_find_in_cache (cache, klass)))
1368 /* we add the %p pointer value of klass because class names are not unique */
1369 name = g_strdup_printf ("__ldfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
1370 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLD);
1373 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
1374 sig->params [0] = &mono_defaults.object_class->byval_arg;
1375 sig->params [1] = &mono_defaults.int_class->byval_arg;
1376 sig->params [2] = &mono_defaults.int_class->byval_arg;
1377 sig->params [3] = &mono_defaults.int_class->byval_arg;
1378 sig->ret = &klass->byval_arg;
1381 mono_mb_emit_ldarg (mb, 0);
1382 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1384 mono_mb_emit_ldarg (mb, 0);
1385 mono_mb_emit_ldarg (mb, 1);
1386 mono_mb_emit_ldarg (mb, 2);
1388 mono_mb_emit_managed_call (mb, mono_marshal_get_ldfld_remote_wrapper (klass), NULL);
1391 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 3);
1392 csig->params [0] = &mono_defaults.object_class->byval_arg;
1393 csig->params [1] = &mono_defaults.int_class->byval_arg;
1394 csig->params [2] = &mono_defaults.int_class->byval_arg;
1395 csig->ret = &klass->this_arg;
1398 mono_mb_emit_native_call (mb, csig, mono_load_remote_field_new);
1399 mono_marshal_emit_thread_interrupt_checkpoint (mb);
1402 if (klass->valuetype) {
1403 mono_mb_emit_op (mb, CEE_UNBOX, klass);
1404 pos1 = mono_mb_emit_branch (mb, CEE_BR);
1406 mono_mb_emit_byte (mb, CEE_RET);
1409 mono_mb_patch_branch (mb, pos0);
1411 mono_mb_emit_ldarg (mb, 0);
1412 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1413 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1414 mono_mb_emit_ldarg (mb, 3);
1415 mono_mb_emit_byte (mb, CEE_ADD);
1417 if (klass->valuetype)
1418 mono_mb_patch_branch (mb, pos1);
1423 case MONO_TYPE_BOOLEAN:
1424 case MONO_TYPE_CHAR:
1433 case MONO_TYPE_ARRAY:
1434 case MONO_TYPE_SZARRAY:
1435 case MONO_TYPE_OBJECT:
1436 case MONO_TYPE_CLASS:
1437 case MONO_TYPE_STRING:
1441 case MONO_TYPE_FNPTR:
1442 mono_mb_emit_byte (mb, mono_type_to_ldind (type));
1444 case MONO_TYPE_VALUETYPE:
1445 g_assert (!klass->enumtype);
1446 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
1448 case MONO_TYPE_GENERICINST:
1449 if (mono_type_generic_inst_is_valuetype (type)) {
1450 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
1452 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1456 case MONO_TYPE_MVAR:
1457 mono_mb_emit_op (mb, CEE_LDOBJ, klass);
1460 g_warning ("type %x not implemented", type->type);
1461 g_assert_not_reached ();
1464 mono_mb_emit_byte (mb, CEE_RET);
1465 #endif /* DISABLE_JIT */
1467 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1468 info->d.proxy.klass = klass;
1469 res = mono_mb_create_and_cache_full (cache, klass,
1470 mb, sig, sig->param_count + 16, info, NULL);
1477 * mono_marshal_get_ldflda_wrapper:
1478 * @type: the type of the field
1480 * This method generates a function which can be used to load a field address
1481 * from an object. The generated function has the following signature:
1482 * gpointer ldflda_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset);
1485 mono_marshal_get_ldflda_wrapper (MonoType *type)
1487 MonoMethodSignature *sig;
1488 MonoMethodBuilder *mb;
1494 int t, pos0, pos1, pos2, pos3;
1496 type = mono_type_get_underlying_type (type);
1500 if (type->type == MONO_TYPE_SZARRAY) {
1501 klass = mono_defaults.array_class;
1502 } else if (type->type == MONO_TYPE_VALUETYPE) {
1503 klass = type->data.klass;
1504 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING ||
1505 t == MONO_TYPE_CLASS) {
1506 klass = mono_defaults.object_class;
1507 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
1508 klass = mono_defaults.int_class;
1509 } else if (t == MONO_TYPE_GENERICINST) {
1510 if (mono_type_generic_inst_is_valuetype (type))
1511 klass = mono_class_from_mono_type (type);
1513 klass = mono_defaults.object_class;
1515 klass = mono_class_from_mono_type (type);
1518 klass = mono_defaults.int_class;
1521 cache = get_cache (&klass->image->ldflda_wrapper_cache, mono_aligned_addr_hash, NULL);
1522 if ((res = mono_marshal_find_in_cache (cache, klass)))
1525 /* we add the %p pointer value of klass because class names are not unique */
1526 name = g_strdup_printf ("__ldflda_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
1527 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_LDFLDA);
1530 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
1531 sig->params [0] = &mono_defaults.object_class->byval_arg;
1532 sig->params [1] = &mono_defaults.int_class->byval_arg;
1533 sig->params [2] = &mono_defaults.int_class->byval_arg;
1534 sig->params [3] = &mono_defaults.int_class->byval_arg;
1535 sig->ret = &mono_defaults.int_class->byval_arg;
1538 /* if typeof (this) != transparent_proxy goto pos0 */
1539 mono_mb_emit_ldarg (mb, 0);
1540 pos0 = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1542 /* if same_appdomain goto pos1 */
1543 mono_mb_emit_ldarg (mb, 0);
1544 pos1 = mono_mb_emit_xdomain_check (mb, CEE_BEQ);
1546 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another appdomain.");
1548 /* same app domain */
1549 mono_mb_patch_branch (mb, pos1);
1551 /* if typeof (this) != contextbound goto pos2 */
1552 mono_mb_emit_ldarg (mb, 0);
1553 pos2 = mono_mb_emit_contextbound_check (mb, CEE_BEQ);
1555 /* if this->rp->context == mono_context_get goto pos3 */
1556 mono_mb_emit_ldarg (mb, 0);
1557 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
1558 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1559 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRealProxy, context));
1560 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1561 mono_mb_emit_icall (mb, mono_context_get);
1562 pos3 = mono_mb_emit_branch (mb, CEE_BEQ);
1564 mono_mb_emit_exception_full (mb, "System", "InvalidOperationException", "Attempt to load field address from object in another context.");
1566 mono_mb_patch_branch (mb, pos2);
1567 mono_mb_patch_branch (mb, pos3);
1569 /* return the address of the field from this->rp->unwrapped_server */
1570 mono_mb_emit_ldarg (mb, 0);
1571 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
1572 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1573 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoRealProxy, unwrapped_server));
1574 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1575 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1576 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1577 mono_mb_emit_ldarg (mb, 3);
1578 mono_mb_emit_byte (mb, CEE_ADD);
1579 mono_mb_emit_byte (mb, CEE_RET);
1581 /* not a proxy: return the address of the field directly */
1582 mono_mb_patch_branch (mb, pos0);
1584 mono_mb_emit_ldarg (mb, 0);
1585 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1586 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1587 mono_mb_emit_ldarg (mb, 3);
1588 mono_mb_emit_byte (mb, CEE_ADD);
1590 mono_mb_emit_byte (mb, CEE_RET);
1593 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1594 info->d.proxy.klass = klass;
1595 res = mono_mb_create_and_cache_full (cache, klass,
1596 mb, sig, sig->param_count + 16,
1604 * mono_marshal_get_stfld_remote_wrapper:
1605 * klass: The type of the field
1607 * This function generates a wrapper for calling mono_store_remote_field_new
1608 * with the appropriate signature.
1609 * Similarly to mono_marshal_get_ldfld_remote_wrapper () this doesn't depend on the
1610 * klass argument anymore.
1613 mono_marshal_get_stfld_remote_wrapper (MonoClass *klass)
1615 MonoMethodSignature *sig, *csig;
1616 MonoMethodBuilder *mb;
1618 static MonoMethod *cached = NULL;
1620 mono_marshal_lock_internal ();
1622 mono_marshal_unlock_internal ();
1625 mono_marshal_unlock_internal ();
1627 mb = mono_mb_new_no_dup_name (mono_defaults.object_class, "__mono_store_remote_field_new_wrapper", MONO_WRAPPER_STFLD_REMOTE);
1629 mb->method->save_lmf = 1;
1631 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
1632 sig->params [0] = &mono_defaults.object_class->byval_arg;
1633 sig->params [1] = &mono_defaults.int_class->byval_arg;
1634 sig->params [2] = &mono_defaults.int_class->byval_arg;
1635 sig->params [3] = &mono_defaults.object_class->byval_arg;
1636 sig->ret = &mono_defaults.void_class->byval_arg;
1639 mono_mb_emit_ldarg (mb, 0);
1640 mono_mb_emit_ldarg (mb, 1);
1641 mono_mb_emit_ldarg (mb, 2);
1642 mono_mb_emit_ldarg (mb, 3);
1644 csig = mono_metadata_signature_alloc (mono_defaults.corlib, 4);
1645 csig->params [0] = &mono_defaults.object_class->byval_arg;
1646 csig->params [1] = &mono_defaults.int_class->byval_arg;
1647 csig->params [2] = &mono_defaults.int_class->byval_arg;
1648 csig->params [3] = &mono_defaults.object_class->byval_arg;
1649 csig->ret = &mono_defaults.void_class->byval_arg;
1652 mono_mb_emit_native_call (mb, csig, mono_store_remote_field_new);
1653 mono_marshal_emit_thread_interrupt_checkpoint (mb);
1655 mono_mb_emit_byte (mb, CEE_RET);
1658 mono_marshal_lock_internal ();
1660 mono_marshal_unlock_internal ();
1663 newm = mono_mb_create (mb, sig, 6, NULL);
1664 mono_marshal_lock_internal ();
1669 mono_marshal_unlock_internal ();
1671 mono_marshal_unlock_internal ();
1672 mono_free_method (newm);
1681 * mono_marshal_get_stfld_wrapper:
1682 * @type: the type of the field
1684 * This method generates a function which can be use to store a field with type
1685 * @type. The generated function has the following signature:
1686 * void stfld_wrapper (MonoObject *this, MonoClass *class, MonoClassField *field, int offset, <@type> val)
1689 mono_marshal_get_stfld_wrapper (MonoType *type)
1691 MonoMethodSignature *sig;
1692 MonoMethodBuilder *mb;
1700 type = mono_type_get_underlying_type (type);
1704 if (type->type == MONO_TYPE_SZARRAY) {
1705 klass = mono_defaults.array_class;
1706 } else if (type->type == MONO_TYPE_VALUETYPE) {
1707 klass = type->data.klass;
1708 } else if (t == MONO_TYPE_OBJECT || t == MONO_TYPE_CLASS || t == MONO_TYPE_STRING) {
1709 klass = mono_defaults.object_class;
1710 } else if (t == MONO_TYPE_PTR || t == MONO_TYPE_FNPTR) {
1711 klass = mono_defaults.int_class;
1712 } else if (t == MONO_TYPE_GENERICINST) {
1713 if (mono_type_generic_inst_is_valuetype (type))
1714 klass = mono_class_from_mono_type (type);
1716 klass = mono_defaults.object_class;
1718 klass = mono_class_from_mono_type (type);
1721 klass = mono_defaults.int_class;
1724 cache = get_cache (&klass->image->stfld_wrapper_cache, mono_aligned_addr_hash, NULL);
1725 if ((res = mono_marshal_find_in_cache (cache, klass)))
1728 /* we add the %p pointer value of klass because class names are not unique */
1729 name = g_strdup_printf ("__stfld_wrapper_%p_%s.%s", klass, klass->name_space, klass->name);
1730 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_STFLD);
1733 sig = mono_metadata_signature_alloc (mono_defaults.corlib, 5);
1734 sig->params [0] = &mono_defaults.object_class->byval_arg;
1735 sig->params [1] = &mono_defaults.int_class->byval_arg;
1736 sig->params [2] = &mono_defaults.int_class->byval_arg;
1737 sig->params [3] = &mono_defaults.int_class->byval_arg;
1738 sig->params [4] = &klass->byval_arg;
1739 sig->ret = &mono_defaults.void_class->byval_arg;
1742 mono_mb_emit_ldarg (mb, 0);
1743 pos = mono_mb_emit_proxy_check (mb, CEE_BNE_UN);
1745 mono_mb_emit_ldarg (mb, 0);
1746 mono_mb_emit_ldarg (mb, 1);
1747 mono_mb_emit_ldarg (mb, 2);
1748 mono_mb_emit_ldarg (mb, 4);
1749 if (klass->valuetype)
1750 mono_mb_emit_op (mb, CEE_BOX, klass);
1752 mono_mb_emit_managed_call (mb, mono_marshal_get_stfld_remote_wrapper (klass), NULL);
1754 mono_mb_emit_byte (mb, CEE_RET);
1756 mono_mb_patch_branch (mb, pos);
1758 mono_mb_emit_ldarg (mb, 0);
1759 mono_mb_emit_byte (mb, MONO_CUSTOM_PREFIX);
1760 mono_mb_emit_byte (mb, CEE_MONO_OBJADDR);
1761 mono_mb_emit_ldarg (mb, 3);
1762 mono_mb_emit_byte (mb, CEE_ADD);
1763 mono_mb_emit_ldarg (mb, 4);
1768 case MONO_TYPE_BOOLEAN:
1769 case MONO_TYPE_CHAR:
1778 case MONO_TYPE_ARRAY:
1779 case MONO_TYPE_SZARRAY:
1780 case MONO_TYPE_OBJECT:
1781 case MONO_TYPE_CLASS:
1782 case MONO_TYPE_STRING:
1786 case MONO_TYPE_FNPTR:
1787 mono_mb_emit_byte (mb, mono_type_to_stind (type));
1789 case MONO_TYPE_VALUETYPE:
1790 g_assert (!klass->enumtype);
1791 mono_mb_emit_op (mb, CEE_STOBJ, klass);
1793 case MONO_TYPE_GENERICINST:
1795 case MONO_TYPE_MVAR:
1796 mono_mb_emit_op (mb, CEE_STOBJ, klass);
1799 g_warning ("type %x not implemented", type->type);
1800 g_assert_not_reached ();
1803 mono_mb_emit_byte (mb, CEE_RET);
1806 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1807 info->d.proxy.klass = klass;
1808 res = mono_mb_create_and_cache_full (cache, klass,
1809 mb, sig, sig->param_count + 16,
1817 mono_marshal_get_proxy_cancast (MonoClass *klass)
1819 static MonoMethodSignature *isint_sig = NULL;
1823 int pos_failed, pos_end;
1824 char *name, *klass_name;
1825 MonoMethod *can_cast_to;
1826 MonoMethodDesc *desc;
1827 MonoMethodBuilder *mb;
1829 cache = get_cache (&klass->image->proxy_isinst_cache, mono_aligned_addr_hash, NULL);
1830 if ((res = mono_marshal_find_in_cache (cache, klass)))
1834 isint_sig = mono_metadata_signature_alloc (mono_defaults.corlib, 1);
1835 isint_sig->params [0] = &mono_defaults.object_class->byval_arg;
1836 isint_sig->ret = &mono_defaults.object_class->byval_arg;
1837 isint_sig->pinvoke = 0;
1840 klass_name = mono_type_full_name (&klass->byval_arg);
1841 name = g_strdup_printf ("__proxy_isinst_wrapper_%s", klass_name);
1842 mb = mono_mb_new (mono_defaults.object_class, name, MONO_WRAPPER_PROXY_ISINST);
1843 g_free (klass_name);
1846 mb->method->save_lmf = 1;
1849 /* get the real proxy from the transparent proxy*/
1850 mono_mb_emit_ldarg (mb, 0);
1851 mono_mb_emit_ldflda (mb, MONO_STRUCT_OFFSET (MonoTransparentProxy, rp));
1852 mono_mb_emit_byte (mb, CEE_LDIND_REF);
1854 /* get the reflection type from the type handle */
1855 mono_mb_emit_ptr (mb, &klass->byval_arg);
1856 mono_mb_emit_icall (mb, type_from_handle);
1858 mono_mb_emit_ldarg (mb, 0);
1860 /* make the call to CanCastTo (type, ob) */
1861 desc = mono_method_desc_new ("IRemotingTypeInfo:CanCastTo", FALSE);
1862 can_cast_to = mono_method_desc_search_in_class (desc, mono_defaults.iremotingtypeinfo_class);
1863 g_assert (can_cast_to);
1864 mono_method_desc_free (desc);
1865 mono_mb_emit_op (mb, CEE_CALLVIRT, can_cast_to);
1867 pos_failed = mono_mb_emit_branch (mb, CEE_BRFALSE);
1869 /* Upgrade the proxy vtable by calling: mono_upgrade_remote_class_wrapper (type, ob)*/
1870 mono_mb_emit_ptr (mb, &klass->byval_arg);
1871 mono_mb_emit_icall (mb, type_from_handle);
1872 mono_mb_emit_ldarg (mb, 0);
1874 mono_mb_emit_icall (mb, mono_upgrade_remote_class_wrapper);
1875 mono_marshal_emit_thread_interrupt_checkpoint (mb);
1877 mono_mb_emit_ldarg (mb, 0);
1878 pos_end = mono_mb_emit_branch (mb, CEE_BR);
1882 mono_mb_patch_branch (mb, pos_failed);
1883 mono_mb_emit_byte (mb, CEE_LDNULL);
1887 mono_mb_patch_branch (mb, pos_end);
1888 mono_mb_emit_byte (mb, CEE_RET);
1891 info = mono_wrapper_info_create (mb, WRAPPER_SUBTYPE_NONE);
1892 info->d.proxy.klass = klass;
1893 res = mono_mb_create_and_cache_full (cache, klass, mb, isint_sig, isint_sig->param_count + 16, info, NULL);
1900 mono_upgrade_remote_class_wrapper (MonoReflectionType *rtype, MonoTransparentProxy *tproxy)
1903 MonoDomain *domain = ((MonoObject*)tproxy)->vtable->domain;
1904 klass = mono_class_from_mono_type (rtype->type);
1905 mono_upgrade_remote_class (domain, (MonoObject*)tproxy, klass);
1908 #else /* DISABLE_REMOTING */
1911 mono_remoting_init (void)
1915 #endif /* DISABLE_REMOTING */
1917 /* mono_get_xdomain_marshal_type()
1918 * Returns the kind of marshalling that a type needs for cross domain calls.
1920 static MonoXDomainMarshalType
1921 mono_get_xdomain_marshal_type (MonoType *t)
1924 case MONO_TYPE_VOID:
1925 g_assert_not_reached ();
1929 case MONO_TYPE_BOOLEAN:
1932 case MONO_TYPE_CHAR:
1939 return MONO_MARSHAL_NONE;
1940 case MONO_TYPE_STRING:
1941 return MONO_MARSHAL_COPY;
1942 case MONO_TYPE_ARRAY:
1943 case MONO_TYPE_SZARRAY: {
1944 MonoClass *elem_class = mono_class_from_mono_type (t)->element_class;
1945 if (mono_get_xdomain_marshal_type (&(elem_class->byval_arg)) != MONO_MARSHAL_SERIALIZE)
1946 return MONO_MARSHAL_COPY;
1952 return MONO_MARSHAL_SERIALIZE;
1955 /* mono_marshal_xdomain_copy_value
1956 * Makes a copy of "val" suitable for the current domain.
1959 mono_marshal_xdomain_copy_value (MonoObject *val)
1962 if (val == NULL) return NULL;
1964 domain = mono_domain_get ();
1966 switch (mono_object_class (val)->byval_arg.type) {
1967 case MONO_TYPE_VOID:
1968 g_assert_not_reached ();
1972 case MONO_TYPE_BOOLEAN:
1975 case MONO_TYPE_CHAR:
1981 case MONO_TYPE_R8: {
1982 return mono_value_box (domain, mono_object_class (val), ((char*)val) + sizeof(MonoObject));
1984 case MONO_TYPE_STRING: {
1985 MonoString *str = (MonoString *) val;
1986 return (MonoObject *) mono_string_new_utf16 (domain, mono_string_chars (str), mono_string_length (str));
1988 case MONO_TYPE_ARRAY:
1989 case MONO_TYPE_SZARRAY: {
1991 MonoXDomainMarshalType mt = mono_get_xdomain_marshal_type (&(mono_object_class (val)->element_class->byval_arg));
1992 if (mt == MONO_MARSHAL_SERIALIZE) return NULL;
1993 acopy = mono_array_clone_in_domain (domain, (MonoArray *) val);
1994 if (mt == MONO_MARSHAL_COPY) {
1995 int i, len = mono_array_length (acopy);
1996 for (i = 0; i < len; i++) {
1997 MonoObject *item = mono_array_get (acopy, gpointer, i);
1998 mono_array_setref (acopy, i, mono_marshal_xdomain_copy_value (item));
2001 return (MonoObject *) acopy;