2 * object.c: Object creation for the Mono runtime
5 * Miguel de Icaza (miguel@ximian.com)
6 * Paolo Molaro (lupus@ximian.com)
8 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
9 * Copyright 2004-2011 Novell, Inc (http://www.novell.com)
10 * Copyright 2001 Xamarin Inc (http://www.xamarin.com)
11 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
20 #include <mono/metadata/mono-endian.h>
21 #include <mono/metadata/tabledefs.h>
22 #include <mono/metadata/tokentype.h>
23 #include <mono/metadata/loader.h>
24 #include <mono/metadata/object.h>
25 #include <mono/metadata/gc-internals.h>
26 #include <mono/metadata/exception.h>
27 #include <mono/metadata/exception-internals.h>
28 #include <mono/metadata/domain-internals.h>
29 #include "mono/metadata/metadata-internals.h"
30 #include "mono/metadata/class-internals.h"
31 #include <mono/metadata/assembly.h>
32 #include <mono/metadata/marshal.h>
33 #include "mono/metadata/debug-helpers.h"
34 #include "mono/metadata/marshal.h"
35 #include <mono/metadata/threads.h>
36 #include <mono/metadata/threads-types.h>
37 #include <mono/metadata/environment.h>
38 #include "mono/metadata/profiler-private.h"
39 #include "mono/metadata/security-manager.h"
40 #include "mono/metadata/mono-debug-debugger.h"
41 #include <mono/metadata/gc-internals.h>
42 #include <mono/metadata/verify-internals.h>
43 #include <mono/metadata/reflection-internals.h>
44 #include <mono/utils/strenc.h>
45 #include <mono/utils/mono-counters.h>
46 #include <mono/utils/mono-error-internals.h>
47 #include <mono/utils/mono-memory-model.h>
48 #include <mono/utils/checked-build.h>
49 #include <mono/utils/mono-threads.h>
50 #include "cominterop.h"
53 get_default_field_value (MonoDomain* domain, MonoClassField *field, void *value);
56 mono_ldstr_metadata_sig (MonoDomain *domain, const char* sig);
59 free_main_args (void);
62 mono_string_to_utf8_internal (MonoMemPool *mp, MonoImage *image, MonoString *s, gboolean ignore_error, MonoError *error);
64 /* Class lazy loading functions */
65 static GENERATE_GET_CLASS_WITH_CACHE (pointer, System.Reflection, Pointer)
66 static GENERATE_GET_CLASS_WITH_CACHE (remoting_services, System.Runtime.Remoting, RemotingServices)
67 static GENERATE_GET_CLASS_WITH_CACHE (unhandled_exception_event_args, System, UnhandledExceptionEventArgs)
68 static GENERATE_GET_CLASS_WITH_CACHE (sta_thread_attribute, System, STAThreadAttribute)
69 static GENERATE_GET_CLASS_WITH_CACHE (activation_services, System.Runtime.Remoting.Activation, ActivationServices)
72 #define ldstr_lock() mono_os_mutex_lock (&ldstr_section)
73 #define ldstr_unlock() mono_os_mutex_unlock (&ldstr_section)
74 static mono_mutex_t ldstr_section;
77 * mono_runtime_object_init:
78 * @this_obj: the object to initialize
80 * This function calls the zero-argument constructor (which must
81 * exist) for the given object.
84 mono_runtime_object_init (MonoObject *this_obj)
87 mono_runtime_object_init_checked (this_obj, &error);
88 mono_error_assert_ok (&error);
92 * mono_runtime_object_init_checked:
93 * @this_obj: the object to initialize
94 * @error: set on error.
96 * This function calls the zero-argument constructor (which must
97 * exist) for the given object and returns TRUE on success, or FALSE
98 * on error and sets @error.
101 mono_runtime_object_init_checked (MonoObject *this_obj, MonoError *error)
103 MONO_REQ_GC_UNSAFE_MODE;
105 MonoMethod *method = NULL;
106 MonoClass *klass = this_obj->vtable->klass;
108 mono_error_init (error);
109 method = mono_class_get_method_from_name (klass, ".ctor", 0);
111 g_error ("Could not lookup zero argument constructor for class %s", mono_type_get_full_name (klass));
113 if (method->klass->valuetype)
114 this_obj = (MonoObject *)mono_object_unbox (this_obj);
116 mono_runtime_invoke_checked (method, this_obj, NULL, error);
117 return is_ok (error);
120 /* The pseudo algorithm for type initialization from the spec
121 Note it doesn't say anything about domains - only threads.
123 2. If the type is initialized you are done.
124 2.1. If the type is not yet initialized, try to take an
126 2.2. If successful, record this thread as responsible for
127 initializing the type and proceed to step 2.3.
128 2.2.1. If not, see whether this thread or any thread
129 waiting for this thread to complete already holds the lock.
130 2.2.2. If so, return since blocking would create a deadlock. This thread
131 will now see an incompletely initialized state for the type,
132 but no deadlock will arise.
133 2.2.3 If not, block until the type is initialized then return.
134 2.3 Initialize the parent type and then all interfaces implemented
136 2.4 Execute the type initialization code for this type.
137 2.5 Mark the type as initialized, release the initialization lock,
138 awaken any threads waiting for this type to be initialized,
145 MonoNativeThreadId initializing_tid;
146 guint32 waiting_count;
148 MonoCoopMutex initialization_section;
149 } TypeInitializationLock;
151 /* for locking access to type_initialization_hash and blocked_thread_hash */
152 static MonoCoopMutex type_initialization_section;
155 mono_type_initialization_lock (void)
157 /* The critical sections protected by this lock in mono_runtime_class_init_full () can block */
158 mono_coop_mutex_lock (&type_initialization_section);
162 mono_type_initialization_unlock (void)
164 mono_coop_mutex_unlock (&type_initialization_section);
168 mono_type_init_lock (TypeInitializationLock *lock)
170 MONO_REQ_GC_NEUTRAL_MODE;
172 mono_coop_mutex_lock (&lock->initialization_section);
176 mono_type_init_unlock (TypeInitializationLock *lock)
178 mono_coop_mutex_unlock (&lock->initialization_section);
181 /* from vtable to lock */
182 static GHashTable *type_initialization_hash;
184 /* from thread id to thread id being waited on */
185 static GHashTable *blocked_thread_hash;
188 static MonoThread *main_thread;
190 /* Functions supplied by the runtime */
191 static MonoRuntimeCallbacks callbacks;
194 * mono_thread_set_main:
195 * @thread: thread to set as the main thread
197 * This function can be used to instruct the runtime to treat @thread
198 * as the main thread, ie, the thread that would normally execute the Main()
199 * method. This basically means that at the end of @thread, the runtime will
200 * wait for the existing foreground threads to quit and other such details.
203 mono_thread_set_main (MonoThread *thread)
205 MONO_REQ_GC_UNSAFE_MODE;
207 static gboolean registered = FALSE;
210 MONO_GC_REGISTER_ROOT_SINGLE (main_thread, MONO_ROOT_SOURCE_THREADING, "main thread object");
214 main_thread = thread;
218 mono_thread_get_main (void)
220 MONO_REQ_GC_UNSAFE_MODE;
226 mono_type_initialization_init (void)
228 mono_coop_mutex_init_recursive (&type_initialization_section);
229 type_initialization_hash = g_hash_table_new (NULL, NULL);
230 blocked_thread_hash = g_hash_table_new (NULL, NULL);
231 mono_os_mutex_init_recursive (&ldstr_section);
235 mono_type_initialization_cleanup (void)
238 /* This is causing race conditions with
239 * mono_release_type_locks
241 mono_coop_mutex_destroy (&type_initialization_section);
242 g_hash_table_destroy (type_initialization_hash);
243 type_initialization_hash = NULL;
245 mono_os_mutex_destroy (&ldstr_section);
246 g_hash_table_destroy (blocked_thread_hash);
247 blocked_thread_hash = NULL;
253 * get_type_init_exception_for_vtable:
255 * Return the stored type initialization exception for VTABLE.
257 static MonoException*
258 get_type_init_exception_for_vtable (MonoVTable *vtable)
260 MONO_REQ_GC_UNSAFE_MODE;
263 MonoDomain *domain = vtable->domain;
264 MonoClass *klass = vtable->klass;
268 if (!vtable->init_failed)
269 g_error ("Trying to get the init exception for a non-failed vtable of class %s", mono_type_get_full_name (klass));
272 * If the initializing thread was rudely aborted, the exception is not stored
276 mono_domain_lock (domain);
277 if (domain->type_init_exception_hash)
278 ex = (MonoException *)mono_g_hash_table_lookup (domain->type_init_exception_hash, klass);
279 mono_domain_unlock (domain);
282 if (klass->name_space && *klass->name_space)
283 full_name = g_strdup_printf ("%s.%s", klass->name_space, klass->name);
285 full_name = g_strdup (klass->name);
286 ex = mono_get_exception_type_initialization_checked (full_name, NULL, &error);
288 return_val_if_nok (&error, NULL);
295 * mono_runtime_class_init:
296 * @vtable: vtable that needs to be initialized
298 * This routine calls the class constructor for @vtable.
301 mono_runtime_class_init (MonoVTable *vtable)
303 MONO_REQ_GC_UNSAFE_MODE;
306 mono_runtime_class_init_full (vtable, &error);
307 mono_error_assert_ok (&error);
311 * mono_runtime_class_init_full:
312 * @vtable that neeeds to be initialized
313 * @error set on error
315 * returns TRUE if class constructor .cctor has been initialized successfully, or FALSE otherwise and sets @error.
319 mono_runtime_class_init_full (MonoVTable *vtable, MonoError *error)
321 MONO_REQ_GC_UNSAFE_MODE;
323 MonoMethod *method = NULL;
326 MonoDomain *domain = vtable->domain;
327 TypeInitializationLock *lock;
328 MonoNativeThreadId tid;
329 int do_initialization = 0;
330 MonoDomain *last_domain = NULL;
332 mono_error_init (error);
334 if (vtable->initialized)
337 klass = vtable->klass;
339 if (!klass->image->checked_module_cctor) {
340 mono_image_check_for_module_cctor (klass->image);
341 if (klass->image->has_module_cctor) {
342 MonoClass *module_klass;
343 MonoVTable *module_vtable;
345 module_klass = mono_class_get_checked (klass->image, MONO_TOKEN_TYPE_DEF | 1, error);
350 module_vtable = mono_class_vtable_full (vtable->domain, module_klass, error);
353 if (!mono_runtime_class_init_full (module_vtable, error))
357 method = mono_class_get_cctor (klass);
359 vtable->initialized = 1;
363 tid = mono_native_thread_id_get ();
365 mono_type_initialization_lock ();
366 /* double check... */
367 if (vtable->initialized) {
368 mono_type_initialization_unlock ();
371 if (vtable->init_failed) {
372 mono_type_initialization_unlock ();
374 /* The type initialization already failed once, rethrow the same exception */
375 mono_error_set_exception_instance (error, get_type_init_exception_for_vtable (vtable));
378 lock = (TypeInitializationLock *)g_hash_table_lookup (type_initialization_hash, vtable);
380 /* This thread will get to do the initialization */
381 if (mono_domain_get () != domain) {
382 /* Transfer into the target domain */
383 last_domain = mono_domain_get ();
384 if (!mono_domain_set (domain, FALSE)) {
385 vtable->initialized = 1;
386 mono_type_initialization_unlock ();
387 mono_error_set_exception_instance (error, mono_get_exception_appdomain_unloaded ());
391 lock = (TypeInitializationLock *)g_malloc (sizeof (TypeInitializationLock));
392 mono_coop_mutex_init_recursive (&lock->initialization_section);
393 lock->initializing_tid = tid;
394 lock->waiting_count = 1;
396 /* grab the vtable lock while this thread still owns type_initialization_section */
397 /* This is why type_initialization_lock needs to enter blocking mode */
398 mono_type_init_lock (lock);
399 g_hash_table_insert (type_initialization_hash, vtable, lock);
400 do_initialization = 1;
403 TypeInitializationLock *pending_lock;
405 if (mono_native_thread_id_equals (lock->initializing_tid, tid) || lock->done) {
406 mono_type_initialization_unlock ();
409 /* see if the thread doing the initialization is already blocked on this thread */
410 blocked = GUINT_TO_POINTER (MONO_NATIVE_THREAD_ID_TO_UINT (lock->initializing_tid));
411 while ((pending_lock = (TypeInitializationLock*) g_hash_table_lookup (blocked_thread_hash, blocked))) {
412 if (mono_native_thread_id_equals (pending_lock->initializing_tid, tid)) {
413 if (!pending_lock->done) {
414 mono_type_initialization_unlock ();
417 /* the thread doing the initialization is blocked on this thread,
418 but on a lock that has already been freed. It just hasn't got
423 blocked = GUINT_TO_POINTER (MONO_NATIVE_THREAD_ID_TO_UINT (pending_lock->initializing_tid));
425 ++lock->waiting_count;
426 /* record the fact that we are waiting on the initializing thread */
427 g_hash_table_insert (blocked_thread_hash, GUINT_TO_POINTER (tid), lock);
429 mono_type_initialization_unlock ();
431 if (do_initialization) {
432 MonoException *exc = NULL;
433 mono_runtime_try_invoke (method, NULL, NULL, (MonoObject**) &exc, error);
434 if (exc != NULL && mono_error_ok (error)) {
435 mono_error_set_exception_instance (error, exc);
438 /* If the initialization failed, mark the class as unusable. */
439 /* Avoid infinite loops */
440 if (!(mono_error_ok(error) ||
441 (klass->image == mono_defaults.corlib &&
442 !strcmp (klass->name_space, "System") &&
443 !strcmp (klass->name, "TypeInitializationException")))) {
444 vtable->init_failed = 1;
446 if (klass->name_space && *klass->name_space)
447 full_name = g_strdup_printf ("%s.%s", klass->name_space, klass->name);
449 full_name = g_strdup (klass->name);
451 MonoException *exc_to_throw = mono_get_exception_type_initialization_checked (full_name, exc, error);
453 return_val_if_nok (error, FALSE);
455 mono_error_set_exception_instance (error, exc_to_throw);
457 MonoException *exc_to_store = mono_error_convert_to_exception (error);
458 /* What we really want to do here is clone the error object and store one copy in the
459 * domain's exception hash and use the other one to error out here. */
460 mono_error_set_exception_instance (error, exc_to_store);
462 * Store the exception object so it could be thrown on subsequent
465 mono_domain_lock (domain);
466 if (!domain->type_init_exception_hash)
467 domain->type_init_exception_hash = mono_g_hash_table_new_type (mono_aligned_addr_hash, NULL, MONO_HASH_VALUE_GC, MONO_ROOT_SOURCE_DOMAIN, "type initialization exceptions table");
468 mono_g_hash_table_insert (domain->type_init_exception_hash, klass, exc_to_store);
469 mono_domain_unlock (domain);
473 mono_domain_set (last_domain, TRUE);
475 mono_type_init_unlock (lock);
477 /* this just blocks until the initializing thread is done */
478 mono_type_init_lock (lock);
479 mono_type_init_unlock (lock);
482 mono_type_initialization_lock ();
483 if (!mono_native_thread_id_equals (lock->initializing_tid, tid))
484 g_hash_table_remove (blocked_thread_hash, GUINT_TO_POINTER (tid));
485 --lock->waiting_count;
486 if (lock->waiting_count == 0) {
487 mono_coop_mutex_destroy (&lock->initialization_section);
488 g_hash_table_remove (type_initialization_hash, vtable);
491 mono_memory_barrier ();
492 if (!vtable->init_failed)
493 vtable->initialized = 1;
494 mono_type_initialization_unlock ();
496 if (vtable->init_failed) {
497 /* Either we were the initializing thread or we waited for the initialization */
498 mono_error_set_exception_instance (error, get_type_init_exception_for_vtable (vtable));
505 gboolean release_type_locks (gpointer key, gpointer value, gpointer user)
507 MONO_REQ_GC_NEUTRAL_MODE;
509 MonoVTable *vtable = (MonoVTable*)key;
511 TypeInitializationLock *lock = (TypeInitializationLock*) value;
512 if (mono_native_thread_id_equals (lock->initializing_tid, MONO_UINT_TO_NATIVE_THREAD_ID (GPOINTER_TO_UINT (user))) && !lock->done) {
515 * Have to set this since it cannot be set by the normal code in
516 * mono_runtime_class_init (). In this case, the exception object is not stored,
517 * and get_type_init_exception_for_class () needs to be aware of this.
519 vtable->init_failed = 1;
520 mono_type_init_unlock (lock);
521 --lock->waiting_count;
522 if (lock->waiting_count == 0) {
523 mono_coop_mutex_destroy (&lock->initialization_section);
532 mono_release_type_locks (MonoInternalThread *thread)
534 MONO_REQ_GC_UNSAFE_MODE;
536 mono_type_initialization_lock ();
537 g_hash_table_foreach_remove (type_initialization_hash, release_type_locks, GUINT_TO_POINTER (thread->tid));
538 mono_type_initialization_unlock ();
541 #ifndef DISABLE_REMOTING
544 default_remoting_trampoline (MonoDomain *domain, MonoMethod *method, MonoRemotingTarget target)
546 g_error ("remoting not installed");
550 static MonoRemotingTrampoline arch_create_remoting_trampoline = default_remoting_trampoline;
554 default_delegate_trampoline (MonoDomain *domain, MonoClass *klass)
556 g_assert_not_reached ();
560 static MonoDelegateTrampoline arch_create_delegate_trampoline = default_delegate_trampoline;
561 static MonoImtThunkBuilder imt_thunk_builder;
562 static gboolean always_build_imt_thunks;
564 #if (MONO_IMT_SIZE > 32)
565 #error "MONO_IMT_SIZE cannot be larger than 32"
569 mono_install_callbacks (MonoRuntimeCallbacks *cbs)
571 memcpy (&callbacks, cbs, sizeof (*cbs));
574 MonoRuntimeCallbacks*
575 mono_get_runtime_callbacks (void)
580 #ifndef DISABLE_REMOTING
582 mono_install_remoting_trampoline (MonoRemotingTrampoline func)
584 arch_create_remoting_trampoline = func? func: default_remoting_trampoline;
589 mono_install_delegate_trampoline (MonoDelegateTrampoline func)
591 arch_create_delegate_trampoline = func? func: default_delegate_trampoline;
595 mono_install_imt_thunk_builder (MonoImtThunkBuilder func) {
596 imt_thunk_builder = func;
600 mono_set_always_build_imt_thunks (gboolean value)
602 always_build_imt_thunks = value;
606 * mono_compile_method:
607 * @method: The method to compile.
609 * This JIT-compiles the method, and returns the pointer to the native code
613 mono_compile_method (MonoMethod *method)
618 MONO_REQ_GC_NEUTRAL_MODE
620 if (!callbacks.compile_method) {
621 g_error ("compile method called on uninitialized runtime");
624 res = callbacks.compile_method (method, &error);
625 if (!mono_error_ok (&error))
626 mono_error_raise_exception (&error);
631 mono_runtime_create_jump_trampoline (MonoDomain *domain, MonoMethod *method, gboolean add_sync_wrapper, MonoError *error)
635 MONO_REQ_GC_NEUTRAL_MODE;
637 mono_error_init (error);
638 res = callbacks.create_jump_trampoline (domain, method, add_sync_wrapper, error);
643 mono_runtime_create_delegate_trampoline (MonoClass *klass)
645 MONO_REQ_GC_NEUTRAL_MODE
647 return arch_create_delegate_trampoline (mono_domain_get (), klass);
650 static MonoFreeMethodFunc default_mono_free_method = NULL;
653 * mono_install_free_method:
654 * @func: pointer to the MonoFreeMethodFunc used to release a method
656 * This is an internal VM routine, it is used for the engines to
657 * register a handler to release the resources associated with a method.
659 * Methods are freed when no more references to the delegate that holds
663 mono_install_free_method (MonoFreeMethodFunc func)
665 default_mono_free_method = func;
669 * mono_runtime_free_method:
670 * @domain; domain where the method is hosted
671 * @method: method to release
673 * This routine is invoked to free the resources associated with
674 * a method that has been JIT compiled. This is used to discard
675 * methods that were used only temporarily (for example, used in marshalling)
679 mono_runtime_free_method (MonoDomain *domain, MonoMethod *method)
681 MONO_REQ_GC_NEUTRAL_MODE
683 if (default_mono_free_method != NULL)
684 default_mono_free_method (domain, method);
686 mono_method_clear_object (domain, method);
688 mono_free_method (method);
692 * The vtables in the root appdomain are assumed to be reachable by other
693 * roots, and we don't use typed allocation in the other domains.
696 /* The sync block is no longer a GC pointer */
697 #define GC_HEADER_BITMAP (0)
699 #define BITMAP_EL_SIZE (sizeof (gsize) * 8)
702 compute_class_bitmap (MonoClass *klass, gsize *bitmap, int size, int offset, int *max_set, gboolean static_fields)
704 MONO_REQ_GC_NEUTRAL_MODE;
706 MonoClassField *field;
712 max_size = mono_class_data_size (klass) / sizeof (gpointer);
714 max_size = klass->instance_size / sizeof (gpointer);
715 if (max_size > size) {
716 g_assert (offset <= 0);
717 bitmap = (gsize *)g_malloc0 ((max_size + BITMAP_EL_SIZE - 1) / BITMAP_EL_SIZE * sizeof (gsize));
722 /*An Ephemeron cannot be marked by sgen*/
723 if (!static_fields && klass->image == mono_defaults.corlib && !strcmp ("Ephemeron", klass->name)) {
725 memset (bitmap, 0, size / 8);
730 for (p = klass; p != NULL; p = p->parent) {
731 gpointer iter = NULL;
732 while ((field = mono_class_get_fields (p, &iter))) {
736 if (!(field->type->attrs & (FIELD_ATTRIBUTE_STATIC | FIELD_ATTRIBUTE_HAS_FIELD_RVA)))
738 if (field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
741 if (field->type->attrs & (FIELD_ATTRIBUTE_STATIC | FIELD_ATTRIBUTE_HAS_FIELD_RVA))
744 /* FIXME: should not happen, flag as type load error */
745 if (field->type->byref)
748 if (static_fields && field->offset == -1)
752 pos = field->offset / sizeof (gpointer);
755 type = mono_type_get_underlying_type (field->type);
756 switch (type->type) {
759 case MONO_TYPE_FNPTR:
761 /* only UIntPtr is allowed to be GC-tracked and only in mscorlib */
766 if (klass->image != mono_defaults.corlib)
769 case MONO_TYPE_STRING:
770 case MONO_TYPE_SZARRAY:
771 case MONO_TYPE_CLASS:
772 case MONO_TYPE_OBJECT:
773 case MONO_TYPE_ARRAY:
774 g_assert ((field->offset % sizeof(gpointer)) == 0);
776 g_assert (pos < size || pos <= max_size);
777 bitmap [pos / BITMAP_EL_SIZE] |= ((gsize)1) << (pos % BITMAP_EL_SIZE);
778 *max_set = MAX (*max_set, pos);
780 case MONO_TYPE_GENERICINST:
781 if (!mono_type_generic_inst_is_valuetype (type)) {
782 g_assert ((field->offset % sizeof(gpointer)) == 0);
784 bitmap [pos / BITMAP_EL_SIZE] |= ((gsize)1) << (pos % BITMAP_EL_SIZE);
785 *max_set = MAX (*max_set, pos);
790 case MONO_TYPE_VALUETYPE: {
791 MonoClass *fclass = mono_class_from_mono_type (field->type);
792 if (fclass->has_references) {
793 /* remove the object header */
794 compute_class_bitmap (fclass, bitmap, size, pos - (sizeof (MonoObject) / sizeof (gpointer)), max_set, FALSE);
808 case MONO_TYPE_BOOLEAN:
812 g_error ("compute_class_bitmap: Invalid type %x for field %s:%s\n", type->type, mono_type_get_full_name (field->parent), field->name);
823 * mono_class_compute_bitmap:
825 * Mono internal function to compute a bitmap of reference fields in a class.
828 mono_class_compute_bitmap (MonoClass *klass, gsize *bitmap, int size, int offset, int *max_set, gboolean static_fields)
830 MONO_REQ_GC_NEUTRAL_MODE;
832 return compute_class_bitmap (klass, bitmap, size, offset, max_set, static_fields);
837 * similar to the above, but sets the bits in the bitmap for any non-ref field
838 * and ignores static fields
841 compute_class_non_ref_bitmap (MonoClass *klass, gsize *bitmap, int size, int offset)
843 MonoClassField *field;
848 max_size = class->instance_size / sizeof (gpointer);
849 if (max_size >= size) {
850 bitmap = g_malloc0 (sizeof (gsize) * ((max_size) + 1));
853 for (p = class; p != NULL; p = p->parent) {
854 gpointer iter = NULL;
855 while ((field = mono_class_get_fields (p, &iter))) {
858 if (field->type->attrs & (FIELD_ATTRIBUTE_STATIC | FIELD_ATTRIBUTE_HAS_FIELD_RVA))
860 /* FIXME: should not happen, flag as type load error */
861 if (field->type->byref)
864 pos = field->offset / sizeof (gpointer);
867 type = mono_type_get_underlying_type (field->type);
868 switch (type->type) {
869 #if SIZEOF_VOID_P == 8
873 case MONO_TYPE_FNPTR:
878 if ((((field->offset + 7) / sizeof (gpointer)) + offset) != pos) {
879 pos2 = ((field->offset + 7) / sizeof (gpointer)) + offset;
880 bitmap [pos2 / BITMAP_EL_SIZE] |= ((gsize)1) << (pos2 % BITMAP_EL_SIZE);
883 #if SIZEOF_VOID_P == 4
887 case MONO_TYPE_FNPTR:
892 if ((((field->offset + 3) / sizeof (gpointer)) + offset) != pos) {
893 pos2 = ((field->offset + 3) / sizeof (gpointer)) + offset;
894 bitmap [pos2 / BITMAP_EL_SIZE] |= ((gsize)1) << (pos2 % BITMAP_EL_SIZE);
900 if ((((field->offset + 1) / sizeof (gpointer)) + offset) != pos) {
901 pos2 = ((field->offset + 1) / sizeof (gpointer)) + offset;
902 bitmap [pos2 / BITMAP_EL_SIZE] |= ((gsize)1) << (pos2 % BITMAP_EL_SIZE);
905 case MONO_TYPE_BOOLEAN:
908 bitmap [pos / BITMAP_EL_SIZE] |= ((gsize)1) << (pos % BITMAP_EL_SIZE);
910 case MONO_TYPE_STRING:
911 case MONO_TYPE_SZARRAY:
912 case MONO_TYPE_CLASS:
913 case MONO_TYPE_OBJECT:
914 case MONO_TYPE_ARRAY:
916 case MONO_TYPE_GENERICINST:
917 if (!mono_type_generic_inst_is_valuetype (type)) {
922 case MONO_TYPE_VALUETYPE: {
923 MonoClass *fclass = mono_class_from_mono_type (field->type);
924 /* remove the object header */
925 compute_class_non_ref_bitmap (fclass, bitmap, size, pos - (sizeof (MonoObject) / sizeof (gpointer)));
929 g_assert_not_reached ();
938 * mono_class_insecure_overlapping:
939 * check if a class with explicit layout has references and non-references
940 * fields overlapping.
942 * Returns: TRUE if it is insecure to load the type.
945 mono_class_insecure_overlapping (MonoClass *klass)
949 gsize default_bitmap [4] = {0};
951 gsize default_nrbitmap [4] = {0};
952 int i, insecure = FALSE;
955 bitmap = compute_class_bitmap (klass, default_bitmap, sizeof (default_bitmap) * 8, 0, &max_set, FALSE);
956 nrbitmap = compute_class_non_ref_bitmap (klass, default_nrbitmap, sizeof (default_nrbitmap) * 8, 0);
958 for (i = 0; i <= max_set; i += sizeof (bitmap [0]) * 8) {
959 int idx = i % (sizeof (bitmap [0]) * 8);
960 if (bitmap [idx] & nrbitmap [idx]) {
965 if (bitmap != default_bitmap)
967 if (nrbitmap != default_nrbitmap)
970 g_print ("class %s.%s in assembly %s has overlapping references\n", klass->name_space, klass->name, klass->image->name);
978 ves_icall_string_alloc (int length)
981 MonoString *str = mono_string_new_size_checked (mono_domain_get (), length, &error);
982 mono_error_set_pending_exception (&error);
988 mono_class_compute_gc_descriptor (MonoClass *klass)
990 MONO_REQ_GC_NEUTRAL_MODE;
994 gsize default_bitmap [4] = {0};
995 static gboolean gcj_inited = FALSE;
1000 mono_register_jit_icall (ves_icall_object_new_fast, "ves_icall_object_new_fast", mono_create_icall_signature ("object ptr"), FALSE);
1001 mono_register_jit_icall (ves_icall_string_alloc, "ves_icall_string_alloc", mono_create_icall_signature ("object int"), FALSE);
1004 mono_loader_unlock ();
1008 mono_class_init (klass);
1010 if (klass->gc_descr_inited)
1013 klass->gc_descr_inited = TRUE;
1014 klass->gc_descr = MONO_GC_DESCRIPTOR_NULL;
1016 bitmap = default_bitmap;
1017 if (klass == mono_defaults.string_class) {
1018 klass->gc_descr = mono_gc_make_descr_for_string (bitmap, 2);
1019 } else if (klass->rank) {
1020 mono_class_compute_gc_descriptor (klass->element_class);
1021 if (MONO_TYPE_IS_REFERENCE (&klass->element_class->byval_arg)) {
1023 klass->gc_descr = mono_gc_make_descr_for_array (klass->byval_arg.type == MONO_TYPE_SZARRAY, &abm, 1, sizeof (gpointer));
1024 /*printf ("new array descriptor: 0x%x for %s.%s\n", class->gc_descr,
1025 class->name_space, class->name);*/
1027 /* remove the object header */
1028 bitmap = compute_class_bitmap (klass->element_class, default_bitmap, sizeof (default_bitmap) * 8, - (int)(sizeof (MonoObject) / sizeof (gpointer)), &max_set, FALSE);
1029 klass->gc_descr = mono_gc_make_descr_for_array (klass->byval_arg.type == MONO_TYPE_SZARRAY, bitmap, mono_array_element_size (klass) / sizeof (gpointer), mono_array_element_size (klass));
1030 /*printf ("new vt array descriptor: 0x%x for %s.%s\n", class->gc_descr,
1031 class->name_space, class->name);*/
1032 if (bitmap != default_bitmap)
1036 /*static int count = 0;
1039 bitmap = compute_class_bitmap (klass, default_bitmap, sizeof (default_bitmap) * 8, 0, &max_set, FALSE);
1040 klass->gc_descr = mono_gc_make_descr_for_object (bitmap, max_set + 1, klass->instance_size);
1042 if (class->gc_descr == MONO_GC_DESCRIPTOR_NULL)
1043 g_print ("disabling typed alloc (%d) for %s.%s\n", max_set, class->name_space, class->name);
1045 /*printf ("new descriptor: %p 0x%x for %s.%s\n", class->gc_descr, bitmap [0], class->name_space, class->name);*/
1046 if (bitmap != default_bitmap)
1052 * field_is_special_static:
1053 * @fklass: The MonoClass to look up.
1054 * @field: The MonoClassField describing the field.
1056 * Returns: SPECIAL_STATIC_THREAD if the field is thread static, SPECIAL_STATIC_CONTEXT if it is context static,
1057 * SPECIAL_STATIC_NONE otherwise.
1060 field_is_special_static (MonoClass *fklass, MonoClassField *field)
1062 MONO_REQ_GC_NEUTRAL_MODE;
1065 MonoCustomAttrInfo *ainfo;
1067 ainfo = mono_custom_attrs_from_field_checked (fklass, field, &error);
1068 mono_error_cleanup (&error); /* FIXME don't swallow the error? */
1071 for (i = 0; i < ainfo->num_attrs; ++i) {
1072 MonoClass *klass = ainfo->attrs [i].ctor->klass;
1073 if (klass->image == mono_defaults.corlib) {
1074 if (strcmp (klass->name, "ThreadStaticAttribute") == 0) {
1075 mono_custom_attrs_free (ainfo);
1076 return SPECIAL_STATIC_THREAD;
1078 else if (strcmp (klass->name, "ContextStaticAttribute") == 0) {
1079 mono_custom_attrs_free (ainfo);
1080 return SPECIAL_STATIC_CONTEXT;
1084 mono_custom_attrs_free (ainfo);
1085 return SPECIAL_STATIC_NONE;
1088 #define rot(x,k) (((x)<<(k)) | ((x)>>(32-(k))))
1089 #define mix(a,b,c) { \
1090 a -= c; a ^= rot(c, 4); c += b; \
1091 b -= a; b ^= rot(a, 6); a += c; \
1092 c -= b; c ^= rot(b, 8); b += a; \
1093 a -= c; a ^= rot(c,16); c += b; \
1094 b -= a; b ^= rot(a,19); a += c; \
1095 c -= b; c ^= rot(b, 4); b += a; \
1097 #define final(a,b,c) { \
1098 c ^= b; c -= rot(b,14); \
1099 a ^= c; a -= rot(c,11); \
1100 b ^= a; b -= rot(a,25); \
1101 c ^= b; c -= rot(b,16); \
1102 a ^= c; a -= rot(c,4); \
1103 b ^= a; b -= rot(a,14); \
1104 c ^= b; c -= rot(b,24); \
1108 * mono_method_get_imt_slot:
1110 * The IMT slot is embedded into AOTed code, so this must return the same value
1111 * for the same method across all executions. This means:
1112 * - pointers shouldn't be used as hash values.
1113 * - mono_metadata_str_hash () should be used for hashing strings.
1116 mono_method_get_imt_slot (MonoMethod *method)
1118 MONO_REQ_GC_NEUTRAL_MODE;
1120 MonoMethodSignature *sig;
1122 guint32 *hashes_start, *hashes;
1126 /* This can be used to stress tests the collision code */
1130 * We do this to simplify generic sharing. It will hurt
1131 * performance in cases where a class implements two different
1132 * instantiations of the same generic interface.
1133 * The code in build_imt_slots () depends on this.
1135 if (method->is_inflated)
1136 method = ((MonoMethodInflated*)method)->declaring;
1138 sig = mono_method_signature (method);
1139 hashes_count = sig->param_count + 4;
1140 hashes_start = (guint32 *)malloc (hashes_count * sizeof (guint32));
1141 hashes = hashes_start;
1143 if (! MONO_CLASS_IS_INTERFACE (method->klass)) {
1144 g_error ("mono_method_get_imt_slot: %s.%s.%s is not an interface MonoMethod",
1145 method->klass->name_space, method->klass->name, method->name);
1148 /* Initialize hashes */
1149 hashes [0] = mono_metadata_str_hash (method->klass->name);
1150 hashes [1] = mono_metadata_str_hash (method->klass->name_space);
1151 hashes [2] = mono_metadata_str_hash (method->name);
1152 hashes [3] = mono_metadata_type_hash (sig->ret);
1153 for (i = 0; i < sig->param_count; i++) {
1154 hashes [4 + i] = mono_metadata_type_hash (sig->params [i]);
1157 /* Setup internal state */
1158 a = b = c = 0xdeadbeef + (((guint32)hashes_count)<<2);
1160 /* Handle most of the hashes */
1161 while (hashes_count > 3) {
1170 /* Handle the last 3 hashes (all the case statements fall through) */
1171 switch (hashes_count) {
1172 case 3 : c += hashes [2];
1173 case 2 : b += hashes [1];
1174 case 1 : a += hashes [0];
1176 case 0: /* nothing left to add */
1180 free (hashes_start);
1181 /* Report the result */
1182 return c % MONO_IMT_SIZE;
1191 add_imt_builder_entry (MonoImtBuilderEntry **imt_builder, MonoMethod *method, guint32 *imt_collisions_bitmap, int vtable_slot, int slot_num) {
1192 MONO_REQ_GC_NEUTRAL_MODE;
1194 guint32 imt_slot = mono_method_get_imt_slot (method);
1195 MonoImtBuilderEntry *entry;
1197 if (slot_num >= 0 && imt_slot != slot_num) {
1198 /* we build just a single imt slot and this is not it */
1202 entry = (MonoImtBuilderEntry *)g_malloc0 (sizeof (MonoImtBuilderEntry));
1203 entry->key = method;
1204 entry->value.vtable_slot = vtable_slot;
1205 entry->next = imt_builder [imt_slot];
1206 if (imt_builder [imt_slot] != NULL) {
1207 entry->children = imt_builder [imt_slot]->children + 1;
1208 if (entry->children == 1) {
1209 mono_stats.imt_slots_with_collisions++;
1210 *imt_collisions_bitmap |= (1 << imt_slot);
1213 entry->children = 0;
1214 mono_stats.imt_used_slots++;
1216 imt_builder [imt_slot] = entry;
1219 char *method_name = mono_method_full_name (method, TRUE);
1220 printf ("Added IMT slot for method (%p) %s: imt_slot = %d, vtable_slot = %d, colliding with other %d entries\n",
1221 method, method_name, imt_slot, vtable_slot, entry->children);
1222 g_free (method_name);
1229 print_imt_entry (const char* message, MonoImtBuilderEntry *e, int num) {
1231 MonoMethod *method = e->key;
1232 printf (" * %s [%d]: (%p) '%s.%s.%s'\n",
1236 method->klass->name_space,
1237 method->klass->name,
1240 printf (" * %s: NULL\n", message);
1246 compare_imt_builder_entries (const void *p1, const void *p2) {
1247 MonoImtBuilderEntry *e1 = *(MonoImtBuilderEntry**) p1;
1248 MonoImtBuilderEntry *e2 = *(MonoImtBuilderEntry**) p2;
1250 return (e1->key < e2->key) ? -1 : ((e1->key > e2->key) ? 1 : 0);
1254 imt_emit_ir (MonoImtBuilderEntry **sorted_array, int start, int end, GPtrArray *out_array)
1256 MONO_REQ_GC_NEUTRAL_MODE;
1258 int count = end - start;
1259 int chunk_start = out_array->len;
1262 for (i = start; i < end; ++i) {
1263 MonoIMTCheckItem *item = g_new0 (MonoIMTCheckItem, 1);
1264 item->key = sorted_array [i]->key;
1265 item->value = sorted_array [i]->value;
1266 item->has_target_code = sorted_array [i]->has_target_code;
1267 item->is_equals = TRUE;
1269 item->check_target_idx = out_array->len + 1;
1271 item->check_target_idx = 0;
1272 g_ptr_array_add (out_array, item);
1275 int middle = start + count / 2;
1276 MonoIMTCheckItem *item = g_new0 (MonoIMTCheckItem, 1);
1278 item->key = sorted_array [middle]->key;
1279 item->is_equals = FALSE;
1280 g_ptr_array_add (out_array, item);
1281 imt_emit_ir (sorted_array, start, middle, out_array);
1282 item->check_target_idx = imt_emit_ir (sorted_array, middle, end, out_array);
1288 imt_sort_slot_entries (MonoImtBuilderEntry *entries) {
1289 MONO_REQ_GC_NEUTRAL_MODE;
1291 int number_of_entries = entries->children + 1;
1292 MonoImtBuilderEntry **sorted_array = (MonoImtBuilderEntry **)malloc (sizeof (MonoImtBuilderEntry*) * number_of_entries);
1293 GPtrArray *result = g_ptr_array_new ();
1294 MonoImtBuilderEntry *current_entry;
1297 for (current_entry = entries, i = 0; current_entry != NULL; current_entry = current_entry->next, i++) {
1298 sorted_array [i] = current_entry;
1300 qsort (sorted_array, number_of_entries, sizeof (MonoImtBuilderEntry*), compare_imt_builder_entries);
1302 /*for (i = 0; i < number_of_entries; i++) {
1303 print_imt_entry (" sorted array:", sorted_array [i], i);
1306 imt_emit_ir (sorted_array, 0, number_of_entries, result);
1308 free (sorted_array);
1313 initialize_imt_slot (MonoVTable *vtable, MonoDomain *domain, MonoImtBuilderEntry *imt_builder_entry, gpointer fail_tramp)
1315 MONO_REQ_GC_NEUTRAL_MODE;
1317 if (imt_builder_entry != NULL) {
1318 if (imt_builder_entry->children == 0 && !fail_tramp && !always_build_imt_thunks) {
1319 /* No collision, return the vtable slot contents */
1320 return vtable->vtable [imt_builder_entry->value.vtable_slot];
1322 /* Collision, build the thunk */
1323 GPtrArray *imt_ir = imt_sort_slot_entries (imt_builder_entry);
1326 result = imt_thunk_builder (vtable, domain,
1327 (MonoIMTCheckItem**)imt_ir->pdata, imt_ir->len, fail_tramp);
1328 for (i = 0; i < imt_ir->len; ++i)
1329 g_free (g_ptr_array_index (imt_ir, i));
1330 g_ptr_array_free (imt_ir, TRUE);
1342 static MonoImtBuilderEntry*
1343 get_generic_virtual_entries (MonoDomain *domain, gpointer *vtable_slot);
1346 * LOCKING: requires the loader and domain locks.
1350 build_imt_slots (MonoClass *klass, MonoVTable *vt, MonoDomain *domain, gpointer* imt, GSList *extra_interfaces, int slot_num)
1352 MONO_REQ_GC_NEUTRAL_MODE;
1356 guint32 imt_collisions_bitmap = 0;
1357 MonoImtBuilderEntry **imt_builder = (MonoImtBuilderEntry **)calloc (MONO_IMT_SIZE, sizeof (MonoImtBuilderEntry*));
1358 int method_count = 0;
1359 gboolean record_method_count_for_max_collisions = FALSE;
1360 gboolean has_generic_virtual = FALSE, has_variant_iface = FALSE;
1363 printf ("Building IMT for class %s.%s slot %d\n", klass->name_space, klass->name, slot_num);
1365 for (i = 0; i < klass->interface_offsets_count; ++i) {
1366 MonoClass *iface = klass->interfaces_packed [i];
1367 int interface_offset = klass->interface_offsets_packed [i];
1368 int method_slot_in_interface, vt_slot;
1370 if (mono_class_has_variant_generic_params (iface))
1371 has_variant_iface = TRUE;
1373 mono_class_setup_methods (iface);
1374 vt_slot = interface_offset;
1375 for (method_slot_in_interface = 0; method_slot_in_interface < iface->method.count; method_slot_in_interface++) {
1378 if (slot_num >= 0 && iface->is_inflated) {
1380 * The imt slot of the method is the same as for its declaring method,
1381 * see the comment in mono_method_get_imt_slot (), so we can
1382 * avoid inflating methods which will be discarded by
1383 * add_imt_builder_entry anyway.
1385 method = mono_class_get_method_by_index (iface->generic_class->container_class, method_slot_in_interface);
1386 if (mono_method_get_imt_slot (method) != slot_num) {
1391 method = mono_class_get_method_by_index (iface, method_slot_in_interface);
1392 if (method->is_generic) {
1393 has_generic_virtual = TRUE;
1398 if (!(method->flags & METHOD_ATTRIBUTE_STATIC)) {
1399 add_imt_builder_entry (imt_builder, method, &imt_collisions_bitmap, vt_slot, slot_num);
1404 if (extra_interfaces) {
1405 int interface_offset = klass->vtable_size;
1407 for (list_item = extra_interfaces; list_item != NULL; list_item=list_item->next) {
1408 MonoClass* iface = (MonoClass *)list_item->data;
1409 int method_slot_in_interface;
1410 for (method_slot_in_interface = 0; method_slot_in_interface < iface->method.count; method_slot_in_interface++) {
1411 MonoMethod *method = mono_class_get_method_by_index (iface, method_slot_in_interface);
1413 if (method->is_generic)
1414 has_generic_virtual = TRUE;
1415 add_imt_builder_entry (imt_builder, method, &imt_collisions_bitmap, interface_offset + method_slot_in_interface, slot_num);
1417 interface_offset += iface->method.count;
1420 for (i = 0; i < MONO_IMT_SIZE; ++i) {
1421 /* overwrite the imt slot only if we're building all the entries or if
1422 * we're building this specific one
1424 if (slot_num < 0 || i == slot_num) {
1425 MonoImtBuilderEntry *entries = get_generic_virtual_entries (domain, &imt [i]);
1428 if (imt_builder [i]) {
1429 MonoImtBuilderEntry *entry;
1431 /* Link entries with imt_builder [i] */
1432 for (entry = entries; entry->next; entry = entry->next) {
1434 MonoMethod *method = (MonoMethod*)entry->key;
1435 char *method_name = mono_method_full_name (method, TRUE);
1436 printf ("Added extra entry for method (%p) %s: imt_slot = %d\n", method, method_name, i);
1437 g_free (method_name);
1440 entry->next = imt_builder [i];
1441 entries->children += imt_builder [i]->children + 1;
1443 imt_builder [i] = entries;
1446 if (has_generic_virtual || has_variant_iface) {
1448 * There might be collisions later when the the thunk is expanded.
1450 imt_collisions_bitmap |= (1 << i);
1453 * The IMT thunk might be called with an instance of one of the
1454 * generic virtual methods, so has to fallback to the IMT trampoline.
1456 imt [i] = initialize_imt_slot (vt, domain, imt_builder [i], callbacks.get_imt_trampoline (vt, i));
1458 imt [i] = initialize_imt_slot (vt, domain, imt_builder [i], NULL);
1461 printf ("initialize_imt_slot[%d]: %p methods %d\n", i, imt [i], imt_builder [i]->children + 1);
1465 if (imt_builder [i] != NULL) {
1466 int methods_in_slot = imt_builder [i]->children + 1;
1467 if (methods_in_slot > mono_stats.imt_max_collisions_in_slot) {
1468 mono_stats.imt_max_collisions_in_slot = methods_in_slot;
1469 record_method_count_for_max_collisions = TRUE;
1471 method_count += methods_in_slot;
1475 mono_stats.imt_number_of_methods += method_count;
1476 if (record_method_count_for_max_collisions) {
1477 mono_stats.imt_method_count_when_max_collisions = method_count;
1480 for (i = 0; i < MONO_IMT_SIZE; i++) {
1481 MonoImtBuilderEntry* entry = imt_builder [i];
1482 while (entry != NULL) {
1483 MonoImtBuilderEntry* next = entry->next;
1489 /* we OR the bitmap since we may build just a single imt slot at a time */
1490 vt->imt_collisions_bitmap |= imt_collisions_bitmap;
1494 build_imt (MonoClass *klass, MonoVTable *vt, MonoDomain *domain, gpointer* imt, GSList *extra_interfaces) {
1495 MONO_REQ_GC_NEUTRAL_MODE;
1497 build_imt_slots (klass, vt, domain, imt, extra_interfaces, -1);
1501 * mono_vtable_build_imt_slot:
1502 * @vtable: virtual object table struct
1503 * @imt_slot: slot in the IMT table
1505 * Fill the given @imt_slot in the IMT table of @vtable with
1506 * a trampoline or a thunk for the case of collisions.
1507 * This is part of the internal mono API.
1509 * LOCKING: Take the domain lock.
1512 mono_vtable_build_imt_slot (MonoVTable* vtable, int imt_slot)
1514 MONO_REQ_GC_NEUTRAL_MODE;
1516 gpointer *imt = (gpointer*)vtable;
1517 imt -= MONO_IMT_SIZE;
1518 g_assert (imt_slot >= 0 && imt_slot < MONO_IMT_SIZE);
1520 /* no support for extra interfaces: the proxy objects will need
1521 * to build the complete IMT
1522 * Update and heck needs to ahppen inside the proper domain lock, as all
1523 * the changes made to a MonoVTable.
1525 mono_loader_lock (); /*FIXME build_imt_slots requires the loader lock.*/
1526 mono_domain_lock (vtable->domain);
1527 /* we change the slot only if it wasn't changed from the generic imt trampoline already */
1528 if (!callbacks.imt_entry_inited (vtable, imt_slot))
1529 build_imt_slots (vtable->klass, vtable, vtable->domain, imt, NULL, imt_slot);
1530 mono_domain_unlock (vtable->domain);
1531 mono_loader_unlock ();
1536 * The first two free list entries both belong to the wait list: The
1537 * first entry is the pointer to the head of the list and the second
1538 * entry points to the last element. That way appending and removing
1539 * the first element are both O(1) operations.
1541 #ifdef MONO_SMALL_CONFIG
1542 #define NUM_FREE_LISTS 6
1544 #define NUM_FREE_LISTS 12
1546 #define FIRST_FREE_LIST_SIZE 64
1547 #define MAX_WAIT_LENGTH 50
1548 #define THUNK_THRESHOLD 10
1551 * LOCKING: The domain lock must be held.
1554 init_thunk_free_lists (MonoDomain *domain)
1556 MONO_REQ_GC_NEUTRAL_MODE;
1558 if (domain->thunk_free_lists)
1560 domain->thunk_free_lists = (MonoThunkFreeList **)mono_domain_alloc0 (domain, sizeof (gpointer) * NUM_FREE_LISTS);
1564 list_index_for_size (int item_size)
1567 int size = FIRST_FREE_LIST_SIZE;
1569 while (item_size > size && i < NUM_FREE_LISTS - 1) {
1578 * mono_method_alloc_generic_virtual_thunk:
1580 * @size: size in bytes
1582 * Allocs size bytes to be used for the code of a generic virtual
1583 * thunk. It's either allocated from the domain's code manager or
1584 * reused from a previously invalidated piece.
1586 * LOCKING: The domain lock must be held.
1589 mono_method_alloc_generic_virtual_thunk (MonoDomain *domain, int size)
1591 MONO_REQ_GC_NEUTRAL_MODE;
1593 static gboolean inited = FALSE;
1594 static int generic_virtual_thunks_size = 0;
1598 MonoThunkFreeList **l;
1600 init_thunk_free_lists (domain);
1602 size += sizeof (guint32);
1603 if (size < sizeof (MonoThunkFreeList))
1604 size = sizeof (MonoThunkFreeList);
1606 i = list_index_for_size (size);
1607 for (l = &domain->thunk_free_lists [i]; *l; l = &(*l)->next) {
1608 if ((*l)->size >= size) {
1609 MonoThunkFreeList *item = *l;
1611 return ((guint32*)item) + 1;
1615 /* no suitable item found - search lists of larger sizes */
1616 while (++i < NUM_FREE_LISTS) {
1617 MonoThunkFreeList *item = domain->thunk_free_lists [i];
1620 g_assert (item->size > size);
1621 domain->thunk_free_lists [i] = item->next;
1622 return ((guint32*)item) + 1;
1625 /* still nothing found - allocate it */
1627 mono_counters_register ("Generic virtual thunk bytes",
1628 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &generic_virtual_thunks_size);
1631 generic_virtual_thunks_size += size;
1633 p = (guint32 *)mono_domain_code_reserve (domain, size);
1636 mono_domain_lock (domain);
1637 if (!domain->generic_virtual_thunks)
1638 domain->generic_virtual_thunks = g_hash_table_new (NULL, NULL);
1639 g_hash_table_insert (domain->generic_virtual_thunks, p, p);
1640 mono_domain_unlock (domain);
1646 * LOCKING: The domain lock must be held.
1649 invalidate_generic_virtual_thunk (MonoDomain *domain, gpointer code)
1651 MONO_REQ_GC_NEUTRAL_MODE;
1653 guint32 *p = (guint32 *)code;
1654 MonoThunkFreeList *l = (MonoThunkFreeList*)(p - 1);
1655 gboolean found = FALSE;
1657 mono_domain_lock (domain);
1658 if (!domain->generic_virtual_thunks)
1659 domain->generic_virtual_thunks = g_hash_table_new (NULL, NULL);
1660 if (g_hash_table_lookup (domain->generic_virtual_thunks, l))
1662 mono_domain_unlock (domain);
1665 /* Not allocated by mono_method_alloc_generic_virtual_thunk (), i.e. AOT */
1667 init_thunk_free_lists (domain);
1669 while (domain->thunk_free_lists [0] && domain->thunk_free_lists [0]->length >= MAX_WAIT_LENGTH) {
1670 MonoThunkFreeList *item = domain->thunk_free_lists [0];
1671 int length = item->length;
1674 /* unlink the first item from the wait list */
1675 domain->thunk_free_lists [0] = item->next;
1676 domain->thunk_free_lists [0]->length = length - 1;
1678 i = list_index_for_size (item->size);
1680 /* put it in the free list */
1681 item->next = domain->thunk_free_lists [i];
1682 domain->thunk_free_lists [i] = item;
1686 if (domain->thunk_free_lists [1]) {
1687 domain->thunk_free_lists [1] = domain->thunk_free_lists [1]->next = l;
1688 domain->thunk_free_lists [0]->length++;
1690 g_assert (!domain->thunk_free_lists [0]);
1692 domain->thunk_free_lists [0] = domain->thunk_free_lists [1] = l;
1693 domain->thunk_free_lists [0]->length = 1;
1697 typedef struct _GenericVirtualCase {
1701 struct _GenericVirtualCase *next;
1702 } GenericVirtualCase;
1705 * get_generic_virtual_entries:
1707 * Return IMT entries for the generic virtual method instances and
1708 * variant interface methods for vtable slot
1711 static MonoImtBuilderEntry*
1712 get_generic_virtual_entries (MonoDomain *domain, gpointer *vtable_slot)
1714 MONO_REQ_GC_NEUTRAL_MODE;
1716 GenericVirtualCase *list;
1717 MonoImtBuilderEntry *entries;
1719 mono_domain_lock (domain);
1720 if (!domain->generic_virtual_cases)
1721 domain->generic_virtual_cases = g_hash_table_new (mono_aligned_addr_hash, NULL);
1723 list = (GenericVirtualCase *)g_hash_table_lookup (domain->generic_virtual_cases, vtable_slot);
1726 for (; list; list = list->next) {
1727 MonoImtBuilderEntry *entry;
1729 if (list->count < THUNK_THRESHOLD)
1732 entry = g_new0 (MonoImtBuilderEntry, 1);
1733 entry->key = list->method;
1734 entry->value.target_code = mono_get_addr_from_ftnptr (list->code);
1735 entry->has_target_code = 1;
1737 entry->children = entries->children + 1;
1738 entry->next = entries;
1742 mono_domain_unlock (domain);
1744 /* FIXME: Leaking memory ? */
1749 * mono_method_add_generic_virtual_invocation:
1751 * @vtable_slot: pointer to the vtable slot
1752 * @method: the inflated generic virtual method
1753 * @code: the method's code
1755 * Registers a call via unmanaged code to a generic virtual method
1756 * instantiation or variant interface method. If the number of calls reaches a threshold
1757 * (THUNK_THRESHOLD), the method is added to the vtable slot's generic
1758 * virtual method thunk.
1761 mono_method_add_generic_virtual_invocation (MonoDomain *domain, MonoVTable *vtable,
1762 gpointer *vtable_slot,
1763 MonoMethod *method, gpointer code)
1765 MONO_REQ_GC_NEUTRAL_MODE;
1767 static gboolean inited = FALSE;
1768 static int num_added = 0;
1770 GenericVirtualCase *gvc, *list;
1771 MonoImtBuilderEntry *entries;
1775 mono_domain_lock (domain);
1776 if (!domain->generic_virtual_cases)
1777 domain->generic_virtual_cases = g_hash_table_new (mono_aligned_addr_hash, NULL);
1779 /* Check whether the case was already added */
1780 list = (GenericVirtualCase *)g_hash_table_lookup (domain->generic_virtual_cases, vtable_slot);
1783 if (gvc->method == method)
1788 /* If not found, make a new one */
1790 gvc = (GenericVirtualCase *)mono_domain_alloc (domain, sizeof (GenericVirtualCase));
1791 gvc->method = method;
1794 gvc->next = (GenericVirtualCase *)g_hash_table_lookup (domain->generic_virtual_cases, vtable_slot);
1796 g_hash_table_insert (domain->generic_virtual_cases, vtable_slot, gvc);
1799 mono_counters_register ("Generic virtual cases", MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &num_added);
1805 if (++gvc->count == THUNK_THRESHOLD) {
1806 gpointer *old_thunk = (void **)*vtable_slot;
1807 gpointer vtable_trampoline = NULL;
1808 gpointer imt_trampoline = NULL;
1810 if ((gpointer)vtable_slot < (gpointer)vtable) {
1811 int displacement = (gpointer*)vtable_slot - (gpointer*)vtable;
1812 int imt_slot = MONO_IMT_SIZE + displacement;
1814 /* Force the rebuild of the thunk at the next call */
1815 imt_trampoline = callbacks.get_imt_trampoline (vtable, imt_slot);
1816 *vtable_slot = imt_trampoline;
1818 vtable_trampoline = callbacks.get_vtable_trampoline ? callbacks.get_vtable_trampoline (vtable, (gpointer*)vtable_slot - (gpointer*)vtable->vtable) : NULL;
1820 entries = get_generic_virtual_entries (domain, vtable_slot);
1822 sorted = imt_sort_slot_entries (entries);
1824 *vtable_slot = imt_thunk_builder (NULL, domain, (MonoIMTCheckItem**)sorted->pdata, sorted->len,
1828 MonoImtBuilderEntry *next = entries->next;
1833 for (i = 0; i < sorted->len; ++i)
1834 g_free (g_ptr_array_index (sorted, i));
1835 g_ptr_array_free (sorted, TRUE);
1838 #ifndef __native_client__
1839 /* We don't re-use any thunks as there is a lot of overhead */
1840 /* to deleting and re-using code in Native Client. */
1841 if (old_thunk != vtable_trampoline && old_thunk != imt_trampoline)
1842 invalidate_generic_virtual_thunk (domain, old_thunk);
1846 mono_domain_unlock (domain);
1849 static MonoVTable *mono_class_create_runtime_vtable (MonoDomain *domain, MonoClass *klass, MonoError *error);
1852 * mono_class_vtable:
1853 * @domain: the application domain
1854 * @class: the class to initialize
1856 * VTables are domain specific because we create domain specific code, and
1857 * they contain the domain specific static class data.
1858 * On failure, NULL is returned, and class->exception_type is set.
1861 mono_class_vtable (MonoDomain *domain, MonoClass *klass)
1864 MonoVTable* vtable = mono_class_vtable_full (domain, klass, &error);
1865 mono_error_cleanup (&error);
1870 * mono_class_vtable_full:
1871 * @domain: the application domain
1872 * @class: the class to initialize
1873 * @error set on failure.
1875 * VTables are domain specific because we create domain specific code, and
1876 * they contain the domain specific static class data.
1879 mono_class_vtable_full (MonoDomain *domain, MonoClass *klass, MonoError *error)
1881 MONO_REQ_GC_UNSAFE_MODE;
1883 MonoClassRuntimeInfo *runtime_info;
1885 mono_error_init (error);
1889 if (mono_class_has_failure (klass)) {
1890 mono_error_set_exception_instance (error, mono_class_get_exception_for_failure (klass));
1894 /* this check can be inlined in jitted code, too */
1895 runtime_info = klass->runtime_info;
1896 if (runtime_info && runtime_info->max_domain >= domain->domain_id && runtime_info->domain_vtables [domain->domain_id])
1897 return runtime_info->domain_vtables [domain->domain_id];
1898 return mono_class_create_runtime_vtable (domain, klass, error);
1902 * mono_class_try_get_vtable:
1903 * @domain: the application domain
1904 * @class: the class to initialize
1906 * This function tries to get the associated vtable from @class if
1907 * it was already created.
1910 mono_class_try_get_vtable (MonoDomain *domain, MonoClass *klass)
1912 MONO_REQ_GC_NEUTRAL_MODE;
1914 MonoClassRuntimeInfo *runtime_info;
1918 runtime_info = klass->runtime_info;
1919 if (runtime_info && runtime_info->max_domain >= domain->domain_id && runtime_info->domain_vtables [domain->domain_id])
1920 return runtime_info->domain_vtables [domain->domain_id];
1925 alloc_vtable (MonoDomain *domain, size_t vtable_size, size_t imt_table_bytes)
1927 MONO_REQ_GC_NEUTRAL_MODE;
1929 size_t alloc_offset;
1932 * We want the pointer to the MonoVTable aligned to 8 bytes because SGen uses three
1933 * address bits. The IMT has an odd number of entries, however, so on 32 bits the
1934 * alignment will be off. In that case we allocate 4 more bytes and skip over them.
1936 if (sizeof (gpointer) == 4 && (imt_table_bytes & 7)) {
1937 g_assert ((imt_table_bytes & 7) == 4);
1944 return (gpointer*) ((char*)mono_domain_alloc0 (domain, vtable_size) + alloc_offset);
1948 mono_class_create_runtime_vtable (MonoDomain *domain, MonoClass *klass, MonoError *error)
1950 MONO_REQ_GC_UNSAFE_MODE;
1953 MonoClassRuntimeInfo *runtime_info, *old_info;
1954 MonoClassField *field;
1956 int i, vtable_slots;
1957 size_t imt_table_bytes;
1959 guint32 vtable_size, class_size;
1961 gpointer *interface_offsets;
1963 mono_error_init (error);
1965 mono_loader_lock (); /*FIXME mono_class_init acquires it*/
1966 mono_domain_lock (domain);
1967 runtime_info = klass->runtime_info;
1968 if (runtime_info && runtime_info->max_domain >= domain->domain_id && runtime_info->domain_vtables [domain->domain_id]) {
1969 mono_domain_unlock (domain);
1970 mono_loader_unlock ();
1971 return runtime_info->domain_vtables [domain->domain_id];
1973 if (!klass->inited || mono_class_has_failure (klass)) {
1974 if (!mono_class_init (klass) || mono_class_has_failure (klass)) {
1975 mono_domain_unlock (domain);
1976 mono_loader_unlock ();
1977 mono_error_set_exception_instance (error, mono_class_get_exception_for_failure (klass));
1982 /* Array types require that their element type be valid*/
1983 if (klass->byval_arg.type == MONO_TYPE_ARRAY || klass->byval_arg.type == MONO_TYPE_SZARRAY) {
1984 MonoClass *element_class = klass->element_class;
1985 if (!element_class->inited)
1986 mono_class_init (element_class);
1988 /*mono_class_init can leave the vtable layout to be lazily done and we can't afford this here*/
1989 if (!mono_class_has_failure (element_class) && !element_class->vtable_size)
1990 mono_class_setup_vtable (element_class);
1992 if (mono_class_has_failure (element_class)) {
1993 /*Can happen if element_class only got bad after mono_class_setup_vtable*/
1994 if (!mono_class_has_failure (klass))
1995 mono_class_set_failure (klass, MONO_EXCEPTION_TYPE_LOAD, NULL);
1996 mono_domain_unlock (domain);
1997 mono_loader_unlock ();
1998 mono_error_set_exception_instance (error, mono_class_get_exception_for_failure (klass));
2004 * For some classes, mono_class_init () already computed klass->vtable_size, and
2005 * that is all that is needed because of the vtable trampolines.
2007 if (!klass->vtable_size)
2008 mono_class_setup_vtable (klass);
2010 if (klass->generic_class && !klass->vtable)
2011 mono_class_check_vtable_constraints (klass, NULL);
2013 /* Initialize klass->has_finalize */
2014 mono_class_has_finalizer (klass);
2016 if (mono_class_has_failure (klass)) {
2017 mono_domain_unlock (domain);
2018 mono_loader_unlock ();
2019 mono_error_set_exception_instance (error, mono_class_get_exception_for_failure (klass));
2023 vtable_slots = klass->vtable_size;
2024 /* we add an additional vtable slot to store the pointer to static field data only when needed */
2025 class_size = mono_class_data_size (klass);
2029 if (klass->interface_offsets_count) {
2030 imt_table_bytes = sizeof (gpointer) * (MONO_IMT_SIZE);
2031 mono_stats.imt_number_of_tables++;
2032 mono_stats.imt_tables_size += imt_table_bytes;
2034 imt_table_bytes = 0;
2037 vtable_size = imt_table_bytes + MONO_SIZEOF_VTABLE + vtable_slots * sizeof (gpointer);
2039 mono_stats.used_class_count++;
2040 mono_stats.class_vtable_size += vtable_size;
2042 interface_offsets = alloc_vtable (domain, vtable_size, imt_table_bytes);
2043 vt = (MonoVTable*) ((char*)interface_offsets + imt_table_bytes);
2044 g_assert (!((gsize)vt & 7));
2047 vt->rank = klass->rank;
2048 vt->domain = domain;
2050 mono_class_compute_gc_descriptor (klass);
2052 * We can't use typed allocation in the non-root domains, since the
2053 * collector needs the GC descriptor stored in the vtable even after
2054 * the mempool containing the vtable is destroyed when the domain is
2055 * unloaded. An alternative might be to allocate vtables in the GC
2056 * heap, but this does not seem to work (it leads to crashes inside
2057 * libgc). If that approach is tried, two gc descriptors need to be
2058 * allocated for each class: one for the root domain, and one for all
2059 * other domains. The second descriptor should contain a bit for the
2060 * vtable field in MonoObject, since we can no longer assume the
2061 * vtable is reachable by other roots after the appdomain is unloaded.
2063 #ifdef HAVE_BOEHM_GC
2064 if (domain != mono_get_root_domain () && !mono_dont_free_domains)
2065 vt->gc_descr = MONO_GC_DESCRIPTOR_NULL;
2068 vt->gc_descr = klass->gc_descr;
2070 gc_bits = mono_gc_get_vtable_bits (klass);
2071 g_assert (!(gc_bits & ~((1 << MONO_VTABLE_AVAILABLE_GC_BITS) - 1)));
2073 vt->gc_bits = gc_bits;
2076 /* we store the static field pointer at the end of the vtable: vt->vtable [class->vtable_size] */
2077 if (klass->has_static_refs) {
2078 MonoGCDescriptor statics_gc_descr;
2080 gsize default_bitmap [4] = {0};
2083 bitmap = compute_class_bitmap (klass, default_bitmap, sizeof (default_bitmap) * 8, 0, &max_set, TRUE);
2084 /*g_print ("bitmap 0x%x for %s.%s (size: %d)\n", bitmap [0], klass->name_space, klass->name, class_size);*/
2085 statics_gc_descr = mono_gc_make_descr_from_bitmap (bitmap, max_set + 1);
2086 vt->vtable [klass->vtable_size] = mono_gc_alloc_fixed (class_size, statics_gc_descr, MONO_ROOT_SOURCE_STATIC, "managed static variables");
2087 mono_domain_add_class_static_data (domain, klass, vt->vtable [klass->vtable_size], NULL);
2088 if (bitmap != default_bitmap)
2091 vt->vtable [klass->vtable_size] = mono_domain_alloc0 (domain, class_size);
2093 vt->has_static_fields = TRUE;
2094 mono_stats.class_static_data_size += class_size;
2098 while ((field = mono_class_get_fields (klass, &iter))) {
2099 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC))
2101 if (mono_field_is_deleted (field))
2103 if (!(field->type->attrs & FIELD_ATTRIBUTE_LITERAL)) {
2104 gint32 special_static = klass->no_special_static_fields ? SPECIAL_STATIC_NONE : field_is_special_static (klass, field);
2105 if (special_static != SPECIAL_STATIC_NONE) {
2106 guint32 size, offset;
2108 gsize default_bitmap [4] = {0};
2113 if (mono_type_is_reference (field->type)) {
2114 default_bitmap [0] = 1;
2116 bitmap = default_bitmap;
2117 } else if (mono_type_is_struct (field->type)) {
2118 fclass = mono_class_from_mono_type (field->type);
2119 bitmap = compute_class_bitmap (fclass, default_bitmap, sizeof (default_bitmap) * 8, - (int)(sizeof (MonoObject) / sizeof (gpointer)), &max_set, FALSE);
2120 numbits = max_set + 1;
2122 default_bitmap [0] = 0;
2124 bitmap = default_bitmap;
2126 size = mono_type_size (field->type, &align);
2127 offset = mono_alloc_special_static_data (special_static, size, align, (uintptr_t*)bitmap, numbits);
2128 if (!domain->special_static_fields)
2129 domain->special_static_fields = g_hash_table_new (NULL, NULL);
2130 g_hash_table_insert (domain->special_static_fields, field, GUINT_TO_POINTER (offset));
2131 if (bitmap != default_bitmap)
2134 * This marks the field as special static to speed up the
2135 * checks in mono_field_static_get/set_value ().
2141 if ((field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA)) {
2142 MonoClass *fklass = mono_class_from_mono_type (field->type);
2143 const char *data = mono_field_get_data (field);
2145 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT));
2146 t = (char*)mono_vtable_get_static_field_data (vt) + field->offset;
2147 /* some fields don't really have rva, they are just zeroed (bss? bug #343083) */
2150 if (fklass->valuetype) {
2151 memcpy (t, data, mono_class_value_size (fklass, NULL));
2153 /* it's a pointer type: add check */
2154 g_assert ((fklass->byval_arg.type == MONO_TYPE_PTR) || (fklass->byval_arg.type == MONO_TYPE_FNPTR));
2161 vt->max_interface_id = klass->max_interface_id;
2162 vt->interface_bitmap = klass->interface_bitmap;
2164 //printf ("Initializing VT for class %s (interface_offsets_count = %d)\n",
2165 // class->name, klass->interface_offsets_count);
2167 /* Initialize vtable */
2168 if (callbacks.get_vtable_trampoline) {
2169 // This also covers the AOT case
2170 for (i = 0; i < klass->vtable_size; ++i) {
2171 vt->vtable [i] = callbacks.get_vtable_trampoline (vt, i);
2174 mono_class_setup_vtable (klass);
2176 for (i = 0; i < klass->vtable_size; ++i) {
2179 cm = klass->vtable [i];
2181 vt->vtable [i] = callbacks.create_jit_trampoline (domain, cm, error);
2182 if (!is_ok (error)) {
2183 mono_domain_unlock (domain);
2184 mono_loader_unlock ();
2191 if (imt_table_bytes) {
2192 /* Now that the vtable is full, we can actually fill up the IMT */
2193 for (i = 0; i < MONO_IMT_SIZE; ++i)
2194 interface_offsets [i] = callbacks.get_imt_trampoline (vt, i);
2198 * FIXME: Is it ok to allocate while holding the domain/loader locks ? If not, we can release them, allocate, then
2199 * re-acquire them and check if another thread has created the vtable in the meantime.
2201 /* Special case System.MonoType to avoid infinite recursion */
2202 if (klass != mono_defaults.monotype_class) {
2203 vt->type = mono_type_get_object_checked (domain, &klass->byval_arg, error);
2204 if (!is_ok (error)) {
2205 mono_domain_unlock (domain);
2206 mono_loader_unlock ();
2210 if (mono_object_get_class ((MonoObject *)vt->type) != mono_defaults.monotype_class)
2211 /* This is unregistered in
2212 unregister_vtable_reflection_type() in
2214 MONO_GC_REGISTER_ROOT_IF_MOVING(vt->type, MONO_ROOT_SOURCE_REFLECTION, "vtable reflection type");
2217 mono_vtable_set_is_remote (vt, mono_class_is_contextbound (klass));
2219 /* class_vtable_array keeps an array of created vtables
2221 g_ptr_array_add (domain->class_vtable_array, vt);
2222 /* klass->runtime_info is protected by the loader lock, both when
2223 * it it enlarged and when it is stored info.
2227 * Store the vtable in klass->runtime_info.
2228 * klass->runtime_info is accessed without locking, so this do this last after the vtable has been constructed.
2230 mono_memory_barrier ();
2232 old_info = klass->runtime_info;
2233 if (old_info && old_info->max_domain >= domain->domain_id) {
2234 /* someone already created a large enough runtime info */
2235 old_info->domain_vtables [domain->domain_id] = vt;
2237 int new_size = domain->domain_id;
2239 new_size = MAX (new_size, old_info->max_domain);
2241 /* make the new size a power of two */
2243 while (new_size > i)
2246 /* this is a bounded memory retention issue: may want to
2247 * handle it differently when we'll have a rcu-like system.
2249 runtime_info = (MonoClassRuntimeInfo *)mono_image_alloc0 (klass->image, MONO_SIZEOF_CLASS_RUNTIME_INFO + new_size * sizeof (gpointer));
2250 runtime_info->max_domain = new_size - 1;
2251 /* copy the stuff from the older info */
2253 memcpy (runtime_info->domain_vtables, old_info->domain_vtables, (old_info->max_domain + 1) * sizeof (gpointer));
2255 runtime_info->domain_vtables [domain->domain_id] = vt;
2257 mono_memory_barrier ();
2258 klass->runtime_info = runtime_info;
2261 if (klass == mono_defaults.monotype_class) {
2262 vt->type = mono_type_get_object_checked (domain, &klass->byval_arg, error);
2263 if (!is_ok (error)) {
2264 mono_domain_unlock (domain);
2265 mono_loader_unlock ();
2269 if (mono_object_get_class ((MonoObject *)vt->type) != mono_defaults.monotype_class)
2270 /* This is unregistered in
2271 unregister_vtable_reflection_type() in
2273 MONO_GC_REGISTER_ROOT_IF_MOVING(vt->type, MONO_ROOT_SOURCE_REFLECTION, "vtable reflection type");
2276 mono_domain_unlock (domain);
2277 mono_loader_unlock ();
2279 /* make sure the parent is initialized */
2280 /*FIXME shouldn't this fail the current type?*/
2282 mono_class_vtable_full (domain, klass->parent, error);
2287 #ifndef DISABLE_REMOTING
2289 * mono_class_proxy_vtable:
2290 * @domain: the application domain
2291 * @remove_class: the remote class
2293 * Creates a vtable for transparent proxies. It is basically
2294 * a copy of the real vtable of the class wrapped in @remote_class,
2295 * but all function pointers invoke the remoting functions, and
2296 * vtable->klass points to the transparent proxy class, and not to @class.
2299 mono_class_proxy_vtable (MonoDomain *domain, MonoRemoteClass *remote_class, MonoRemotingTarget target_type)
2301 MONO_REQ_GC_UNSAFE_MODE;
2304 MonoVTable *vt, *pvt;
2305 int i, j, vtsize, max_interface_id, extra_interface_vtsize = 0;
2307 GSList *extra_interfaces = NULL;
2308 MonoClass *klass = remote_class->proxy_class;
2309 gpointer *interface_offsets;
2312 size_t imt_table_bytes;
2314 #ifdef COMPRESSED_INTERFACE_BITMAP
2318 vt = mono_class_vtable (domain, klass);
2319 g_assert (vt); /*FIXME property handle failure*/
2320 max_interface_id = vt->max_interface_id;
2322 /* Calculate vtable space for extra interfaces */
2323 for (j = 0; j < remote_class->interface_count; j++) {
2324 MonoClass* iclass = remote_class->interfaces[j];
2328 /*FIXME test for interfaces with variant generic arguments*/
2329 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, iclass->interface_id))
2330 continue; /* interface implemented by the class */
2331 if (g_slist_find (extra_interfaces, iclass))
2334 extra_interfaces = g_slist_prepend (extra_interfaces, iclass);
2336 method_count = mono_class_num_methods (iclass);
2338 ifaces = mono_class_get_implemented_interfaces (iclass, &error);
2339 g_assert (mono_error_ok (&error)); /*FIXME do proper error handling*/
2341 for (i = 0; i < ifaces->len; ++i) {
2342 MonoClass *ic = (MonoClass *)g_ptr_array_index (ifaces, i);
2343 /*FIXME test for interfaces with variant generic arguments*/
2344 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, ic->interface_id))
2345 continue; /* interface implemented by the class */
2346 if (g_slist_find (extra_interfaces, ic))
2348 extra_interfaces = g_slist_prepend (extra_interfaces, ic);
2349 method_count += mono_class_num_methods (ic);
2351 g_ptr_array_free (ifaces, TRUE);
2354 extra_interface_vtsize += method_count * sizeof (gpointer);
2355 if (iclass->max_interface_id > max_interface_id) max_interface_id = iclass->max_interface_id;
2358 imt_table_bytes = sizeof (gpointer) * MONO_IMT_SIZE;
2359 mono_stats.imt_number_of_tables++;
2360 mono_stats.imt_tables_size += imt_table_bytes;
2362 vtsize = imt_table_bytes + MONO_SIZEOF_VTABLE + klass->vtable_size * sizeof (gpointer);
2364 mono_stats.class_vtable_size += vtsize + extra_interface_vtsize;
2366 interface_offsets = alloc_vtable (domain, vtsize + extra_interface_vtsize, imt_table_bytes);
2367 pvt = (MonoVTable*) ((char*)interface_offsets + imt_table_bytes);
2368 g_assert (!((gsize)pvt & 7));
2370 memcpy (pvt, vt, MONO_SIZEOF_VTABLE + klass->vtable_size * sizeof (gpointer));
2372 pvt->klass = mono_defaults.transparent_proxy_class;
2373 /* we need to keep the GC descriptor for a transparent proxy or we confuse the precise GC */
2374 pvt->gc_descr = mono_defaults.transparent_proxy_class->gc_descr;
2376 /* initialize vtable */
2377 mono_class_setup_vtable (klass);
2378 for (i = 0; i < klass->vtable_size; ++i) {
2381 if ((cm = klass->vtable [i]))
2382 pvt->vtable [i] = arch_create_remoting_trampoline (domain, cm, target_type);
2384 pvt->vtable [i] = NULL;
2387 if (klass->flags & TYPE_ATTRIBUTE_ABSTRACT) {
2388 /* create trampolines for abstract methods */
2389 for (k = klass; k; k = k->parent) {
2391 gpointer iter = NULL;
2392 while ((m = mono_class_get_methods (k, &iter)))
2393 if (!pvt->vtable [m->slot])
2394 pvt->vtable [m->slot] = arch_create_remoting_trampoline (domain, m, target_type);
2398 pvt->max_interface_id = max_interface_id;
2399 bsize = sizeof (guint8) * (max_interface_id/8 + 1 );
2400 #ifdef COMPRESSED_INTERFACE_BITMAP
2401 bitmap = (uint8_t *)g_malloc0 (bsize);
2403 bitmap = (uint8_t *)mono_domain_alloc0 (domain, bsize);
2406 for (i = 0; i < klass->interface_offsets_count; ++i) {
2407 int interface_id = klass->interfaces_packed [i]->interface_id;
2408 bitmap [interface_id >> 3] |= (1 << (interface_id & 7));
2411 if (extra_interfaces) {
2412 int slot = klass->vtable_size;
2418 /* Create trampolines for the methods of the interfaces */
2419 for (list_item = extra_interfaces; list_item != NULL; list_item=list_item->next) {
2420 interf = (MonoClass *)list_item->data;
2422 bitmap [interf->interface_id >> 3] |= (1 << (interf->interface_id & 7));
2426 while ((cm = mono_class_get_methods (interf, &iter)))
2427 pvt->vtable [slot + j++] = arch_create_remoting_trampoline (domain, cm, target_type);
2429 slot += mono_class_num_methods (interf);
2433 /* Now that the vtable is full, we can actually fill up the IMT */
2434 build_imt (klass, pvt, domain, interface_offsets, extra_interfaces);
2435 if (extra_interfaces) {
2436 g_slist_free (extra_interfaces);
2439 #ifdef COMPRESSED_INTERFACE_BITMAP
2440 bcsize = mono_compress_bitmap (NULL, bitmap, bsize);
2441 pvt->interface_bitmap = mono_domain_alloc0 (domain, bcsize);
2442 mono_compress_bitmap (pvt->interface_bitmap, bitmap, bsize);
2445 pvt->interface_bitmap = bitmap;
2450 #endif /* DISABLE_REMOTING */
2453 * mono_class_field_is_special_static:
2455 * Returns whether @field is a thread/context static field.
2458 mono_class_field_is_special_static (MonoClassField *field)
2460 MONO_REQ_GC_NEUTRAL_MODE
2462 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC))
2464 if (mono_field_is_deleted (field))
2466 if (!(field->type->attrs & FIELD_ATTRIBUTE_LITERAL)) {
2467 if (field_is_special_static (field->parent, field) != SPECIAL_STATIC_NONE)
2474 * mono_class_field_get_special_static_type:
2475 * @field: The MonoClassField describing the field.
2477 * Returns: SPECIAL_STATIC_THREAD if the field is thread static, SPECIAL_STATIC_CONTEXT if it is context static,
2478 * SPECIAL_STATIC_NONE otherwise.
2481 mono_class_field_get_special_static_type (MonoClassField *field)
2483 MONO_REQ_GC_NEUTRAL_MODE
2485 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC))
2486 return SPECIAL_STATIC_NONE;
2487 if (mono_field_is_deleted (field))
2488 return SPECIAL_STATIC_NONE;
2489 if (!(field->type->attrs & FIELD_ATTRIBUTE_LITERAL))
2490 return field_is_special_static (field->parent, field);
2491 return SPECIAL_STATIC_NONE;
2495 * mono_class_has_special_static_fields:
2497 * Returns whenever @klass has any thread/context static fields.
2500 mono_class_has_special_static_fields (MonoClass *klass)
2502 MONO_REQ_GC_NEUTRAL_MODE
2504 MonoClassField *field;
2508 while ((field = mono_class_get_fields (klass, &iter))) {
2509 g_assert (field->parent == klass);
2510 if (mono_class_field_is_special_static (field))
2517 #ifndef DISABLE_REMOTING
2519 * create_remote_class_key:
2520 * Creates an array of pointers that can be used as a hash key for a remote class.
2521 * The first element of the array is the number of pointers.
2524 create_remote_class_key (MonoRemoteClass *remote_class, MonoClass *extra_class)
2526 MONO_REQ_GC_NEUTRAL_MODE;
2531 if (remote_class == NULL) {
2532 if (extra_class->flags & TYPE_ATTRIBUTE_INTERFACE) {
2533 key = (void **)g_malloc (sizeof(gpointer) * 3);
2534 key [0] = GINT_TO_POINTER (2);
2535 key [1] = mono_defaults.marshalbyrefobject_class;
2536 key [2] = extra_class;
2538 key = (void **)g_malloc (sizeof(gpointer) * 2);
2539 key [0] = GINT_TO_POINTER (1);
2540 key [1] = extra_class;
2543 if (extra_class != NULL && (extra_class->flags & TYPE_ATTRIBUTE_INTERFACE)) {
2544 key = (void **)g_malloc (sizeof(gpointer) * (remote_class->interface_count + 3));
2545 key [0] = GINT_TO_POINTER (remote_class->interface_count + 2);
2546 key [1] = remote_class->proxy_class;
2548 // Keep the list of interfaces sorted
2549 for (i = 0, j = 2; i < remote_class->interface_count; i++, j++) {
2550 if (extra_class && remote_class->interfaces [i] > extra_class) {
2551 key [j++] = extra_class;
2554 key [j] = remote_class->interfaces [i];
2557 key [j] = extra_class;
2559 // Replace the old class. The interface list is the same
2560 key = (void **)g_malloc (sizeof(gpointer) * (remote_class->interface_count + 2));
2561 key [0] = GINT_TO_POINTER (remote_class->interface_count + 1);
2562 key [1] = extra_class != NULL ? extra_class : remote_class->proxy_class;
2563 for (i = 0; i < remote_class->interface_count; i++)
2564 key [2 + i] = remote_class->interfaces [i];
2572 * copy_remote_class_key:
2574 * Make a copy of KEY in the domain and return the copy.
2577 copy_remote_class_key (MonoDomain *domain, gpointer *key)
2579 MONO_REQ_GC_NEUTRAL_MODE
2581 int key_size = (GPOINTER_TO_UINT (key [0]) + 1) * sizeof (gpointer);
2582 gpointer *mp_key = (gpointer *)mono_domain_alloc (domain, key_size);
2584 memcpy (mp_key, key, key_size);
2590 * mono_remote_class:
2591 * @domain: the application domain
2592 * @class_name: name of the remote class
2593 * @error: set on error
2595 * Creates and initializes a MonoRemoteClass object for a remote type.
2597 * On failure returns NULL and sets @error
2600 mono_remote_class (MonoDomain *domain, MonoString *class_name, MonoClass *proxy_class, MonoError *error)
2602 MONO_REQ_GC_UNSAFE_MODE;
2604 MonoRemoteClass *rc;
2605 gpointer* key, *mp_key;
2608 mono_error_init (error);
2610 key = create_remote_class_key (NULL, proxy_class);
2612 mono_domain_lock (domain);
2613 rc = (MonoRemoteClass *)g_hash_table_lookup (domain->proxy_vtable_hash, key);
2617 mono_domain_unlock (domain);
2621 name = mono_string_to_utf8_mp (domain->mp, class_name, error);
2622 if (!is_ok (error)) {
2624 mono_domain_unlock (domain);
2628 mp_key = copy_remote_class_key (domain, key);
2632 if (proxy_class->flags & TYPE_ATTRIBUTE_INTERFACE) {
2633 rc = (MonoRemoteClass *)mono_domain_alloc (domain, MONO_SIZEOF_REMOTE_CLASS + sizeof(MonoClass*));
2634 rc->interface_count = 1;
2635 rc->interfaces [0] = proxy_class;
2636 rc->proxy_class = mono_defaults.marshalbyrefobject_class;
2638 rc = (MonoRemoteClass *)mono_domain_alloc (domain, MONO_SIZEOF_REMOTE_CLASS);
2639 rc->interface_count = 0;
2640 rc->proxy_class = proxy_class;
2643 rc->default_vtable = NULL;
2644 rc->xdomain_vtable = NULL;
2645 rc->proxy_class_name = name;
2646 #ifndef DISABLE_PERFCOUNTERS
2647 mono_perfcounters->loader_bytes += mono_string_length (class_name) + 1;
2650 g_hash_table_insert (domain->proxy_vtable_hash, key, rc);
2652 mono_domain_unlock (domain);
2657 * clone_remote_class:
2658 * Creates a copy of the remote_class, adding the provided class or interface
2660 static MonoRemoteClass*
2661 clone_remote_class (MonoDomain *domain, MonoRemoteClass* remote_class, MonoClass *extra_class)
2663 MONO_REQ_GC_NEUTRAL_MODE;
2665 MonoRemoteClass *rc;
2666 gpointer* key, *mp_key;
2668 key = create_remote_class_key (remote_class, extra_class);
2669 rc = (MonoRemoteClass *)g_hash_table_lookup (domain->proxy_vtable_hash, key);
2675 mp_key = copy_remote_class_key (domain, key);
2679 if (extra_class->flags & TYPE_ATTRIBUTE_INTERFACE) {
2681 rc = (MonoRemoteClass *)mono_domain_alloc (domain, MONO_SIZEOF_REMOTE_CLASS + sizeof(MonoClass*) * (remote_class->interface_count + 1));
2682 rc->proxy_class = remote_class->proxy_class;
2683 rc->interface_count = remote_class->interface_count + 1;
2685 // Keep the list of interfaces sorted, since the hash key of
2686 // the remote class depends on this
2687 for (i = 0, j = 0; i < remote_class->interface_count; i++, j++) {
2688 if (remote_class->interfaces [i] > extra_class && i == j)
2689 rc->interfaces [j++] = extra_class;
2690 rc->interfaces [j] = remote_class->interfaces [i];
2693 rc->interfaces [j] = extra_class;
2695 // Replace the old class. The interface array is the same
2696 rc = (MonoRemoteClass *)mono_domain_alloc (domain, MONO_SIZEOF_REMOTE_CLASS + sizeof(MonoClass*) * remote_class->interface_count);
2697 rc->proxy_class = extra_class;
2698 rc->interface_count = remote_class->interface_count;
2699 if (rc->interface_count > 0)
2700 memcpy (rc->interfaces, remote_class->interfaces, rc->interface_count * sizeof (MonoClass*));
2703 rc->default_vtable = NULL;
2704 rc->xdomain_vtable = NULL;
2705 rc->proxy_class_name = remote_class->proxy_class_name;
2707 g_hash_table_insert (domain->proxy_vtable_hash, key, rc);
2713 mono_remote_class_vtable (MonoDomain *domain, MonoRemoteClass *remote_class, MonoRealProxy *rp)
2715 MONO_REQ_GC_UNSAFE_MODE;
2717 mono_loader_lock (); /*FIXME mono_class_from_mono_type and mono_class_proxy_vtable take it*/
2718 mono_domain_lock (domain);
2719 if (rp->target_domain_id != -1) {
2720 if (remote_class->xdomain_vtable == NULL)
2721 remote_class->xdomain_vtable = mono_class_proxy_vtable (domain, remote_class, MONO_REMOTING_TARGET_APPDOMAIN);
2722 mono_domain_unlock (domain);
2723 mono_loader_unlock ();
2724 return remote_class->xdomain_vtable;
2726 if (remote_class->default_vtable == NULL) {
2729 type = ((MonoReflectionType *)rp->class_to_proxy)->type;
2730 klass = mono_class_from_mono_type (type);
2732 if ((mono_class_is_com_object (klass) || (mono_class_get_com_object_class () && klass == mono_class_get_com_object_class ())) && !mono_vtable_is_remote (mono_class_vtable (mono_domain_get (), klass)))
2733 remote_class->default_vtable = mono_class_proxy_vtable (domain, remote_class, MONO_REMOTING_TARGET_COMINTEROP);
2736 remote_class->default_vtable = mono_class_proxy_vtable (domain, remote_class, MONO_REMOTING_TARGET_UNKNOWN);
2739 mono_domain_unlock (domain);
2740 mono_loader_unlock ();
2741 return remote_class->default_vtable;
2745 * mono_upgrade_remote_class:
2746 * @domain: the application domain
2747 * @tproxy: the proxy whose remote class has to be upgraded.
2748 * @klass: class to which the remote class can be casted.
2750 * Updates the vtable of the remote class by adding the necessary method slots
2751 * and interface offsets so it can be safely casted to klass. klass can be a
2752 * class or an interface.
2755 mono_upgrade_remote_class (MonoDomain *domain, MonoObject *proxy_object, MonoClass *klass)
2757 MONO_REQ_GC_UNSAFE_MODE;
2759 MonoTransparentProxy *tproxy;
2760 MonoRemoteClass *remote_class;
2761 gboolean redo_vtable;
2763 mono_loader_lock (); /*FIXME mono_remote_class_vtable requires it.*/
2764 mono_domain_lock (domain);
2766 tproxy = (MonoTransparentProxy*) proxy_object;
2767 remote_class = tproxy->remote_class;
2769 if (klass->flags & TYPE_ATTRIBUTE_INTERFACE) {
2772 for (i = 0; i < remote_class->interface_count && redo_vtable; i++)
2773 if (remote_class->interfaces [i] == klass)
2774 redo_vtable = FALSE;
2777 redo_vtable = (remote_class->proxy_class != klass);
2781 tproxy->remote_class = clone_remote_class (domain, remote_class, klass);
2782 proxy_object->vtable = (MonoVTable *)mono_remote_class_vtable (domain, tproxy->remote_class, tproxy->rp);
2785 mono_domain_unlock (domain);
2786 mono_loader_unlock ();
2788 #endif /* DISABLE_REMOTING */
2792 * mono_object_get_virtual_method:
2793 * @obj: object to operate on.
2796 * Retrieves the MonoMethod that would be called on obj if obj is passed as
2797 * the instance of a callvirt of method.
2800 mono_object_get_virtual_method (MonoObject *obj, MonoMethod *method)
2802 MONO_REQ_GC_UNSAFE_MODE;
2805 MonoMethod **vtable;
2806 gboolean is_proxy = FALSE;
2807 MonoMethod *res = NULL;
2809 klass = mono_object_class (obj);
2810 #ifndef DISABLE_REMOTING
2811 if (klass == mono_defaults.transparent_proxy_class) {
2812 klass = ((MonoTransparentProxy *)obj)->remote_class->proxy_class;
2817 if (!is_proxy && ((method->flags & METHOD_ATTRIBUTE_FINAL) || !(method->flags & METHOD_ATTRIBUTE_VIRTUAL)))
2820 mono_class_setup_vtable (klass);
2821 vtable = klass->vtable;
2823 if (method->slot == -1) {
2824 /* method->slot might not be set for instances of generic methods */
2825 if (method->is_inflated) {
2826 g_assert (((MonoMethodInflated*)method)->declaring->slot != -1);
2827 method->slot = ((MonoMethodInflated*)method)->declaring->slot;
2830 g_assert_not_reached ();
2834 /* check method->slot is a valid index: perform isinstance? */
2835 if (method->slot != -1) {
2836 if (method->klass->flags & TYPE_ATTRIBUTE_INTERFACE) {
2838 gboolean variance_used = FALSE;
2839 int iface_offset = mono_class_interface_offset_with_variance (klass, method->klass, &variance_used);
2840 g_assert (iface_offset > 0);
2841 res = vtable [iface_offset + method->slot];
2844 res = vtable [method->slot];
2848 #ifndef DISABLE_REMOTING
2850 /* It may be an interface, abstract class method or generic method */
2851 if (!res || mono_method_signature (res)->generic_param_count)
2854 /* generic methods demand invoke_with_check */
2855 if (mono_method_signature (res)->generic_param_count)
2856 res = mono_marshal_get_remoting_invoke_with_check (res);
2859 if (klass == mono_class_get_com_object_class () || mono_class_is_com_object (klass))
2860 res = mono_cominterop_get_invoke (res);
2863 res = mono_marshal_get_remoting_invoke (res);
2868 if (method->is_inflated) {
2870 /* Have to inflate the result */
2871 res = mono_class_inflate_generic_method_checked (res, &((MonoMethodInflated*)method)->context, &error);
2872 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
2882 do_runtime_invoke (MonoMethod *method, void *obj, void **params, MonoObject **exc, MonoError *error)
2884 MONO_REQ_GC_UNSAFE_MODE;
2886 MonoObject *result = NULL;
2888 g_assert (callbacks.runtime_invoke);
2890 mono_error_init (error);
2892 if (mono_profiler_get_events () & MONO_PROFILE_METHOD_EVENTS)
2893 mono_profiler_method_start_invoke (method);
2895 MONO_PREPARE_RESET_BLOCKING;
2897 result = callbacks.runtime_invoke (method, obj, params, exc, error);
2899 MONO_FINISH_RESET_BLOCKING;
2901 if (mono_profiler_get_events () & MONO_PROFILE_METHOD_EVENTS)
2902 mono_profiler_method_end_invoke (method);
2904 if (!mono_error_ok (error))
2911 * mono_runtime_invoke:
2912 * @method: method to invoke
2913 * @obJ: object instance
2914 * @params: arguments to the method
2915 * @exc: exception information.
2917 * Invokes the method represented by @method on the object @obj.
2919 * obj is the 'this' pointer, it should be NULL for static
2920 * methods, a MonoObject* for object instances and a pointer to
2921 * the value type for value types.
2923 * The params array contains the arguments to the method with the
2924 * same convention: MonoObject* pointers for object instances and
2925 * pointers to the value type otherwise.
2927 * From unmanaged code you'll usually use the
2928 * mono_runtime_invoke() variant.
2930 * Note that this function doesn't handle virtual methods for
2931 * you, it will exec the exact method you pass: we still need to
2932 * expose a function to lookup the derived class implementation
2933 * of a virtual method (there are examples of this in the code,
2936 * You can pass NULL as the exc argument if you don't want to
2937 * catch exceptions, otherwise, *exc will be set to the exception
2938 * thrown, if any. if an exception is thrown, you can't use the
2939 * MonoObject* result from the function.
2941 * If the method returns a value type, it is boxed in an object
2945 mono_runtime_invoke (MonoMethod *method, void *obj, void **params, MonoObject **exc)
2950 res = mono_runtime_try_invoke (method, obj, params, exc, &error);
2951 if (*exc == NULL && !mono_error_ok(&error)) {
2952 *exc = (MonoObject*) mono_error_convert_to_exception (&error);
2954 mono_error_cleanup (&error);
2956 res = mono_runtime_invoke_checked (method, obj, params, &error);
2957 mono_error_raise_exception (&error);
2963 * mono_runtime_try_invoke:
2964 * @method: method to invoke
2965 * @obJ: object instance
2966 * @params: arguments to the method
2967 * @exc: exception information.
2968 * @error: set on error
2970 * Invokes the method represented by @method on the object @obj.
2972 * obj is the 'this' pointer, it should be NULL for static
2973 * methods, a MonoObject* for object instances and a pointer to
2974 * the value type for value types.
2976 * The params array contains the arguments to the method with the
2977 * same convention: MonoObject* pointers for object instances and
2978 * pointers to the value type otherwise.
2980 * From unmanaged code you'll usually use the
2981 * mono_runtime_invoke() variant.
2983 * Note that this function doesn't handle virtual methods for
2984 * you, it will exec the exact method you pass: we still need to
2985 * expose a function to lookup the derived class implementation
2986 * of a virtual method (there are examples of this in the code,
2989 * For this function, you must not pass NULL as the exc argument if
2990 * you don't want to catch exceptions, use
2991 * mono_runtime_invoke_checked(). If an exception is thrown, you
2992 * can't use the MonoObject* result from the function.
2994 * If this method cannot be invoked, @error will be set and @exc and
2995 * the return value must not be used.
2997 * If the method returns a value type, it is boxed in an object
3001 mono_runtime_try_invoke (MonoMethod *method, void *obj, void **params, MonoObject **exc, MonoError* error)
3003 MONO_REQ_GC_UNSAFE_MODE;
3005 g_assert (exc != NULL);
3007 if (mono_runtime_get_no_exec ())
3008 g_warning ("Invoking method '%s' when running in no-exec mode.\n", mono_method_full_name (method, TRUE));
3010 return do_runtime_invoke (method, obj, params, exc, error);
3014 * mono_runtime_invoke_checked:
3015 * @method: method to invoke
3016 * @obJ: object instance
3017 * @params: arguments to the method
3018 * @error: set on error
3020 * Invokes the method represented by @method on the object @obj.
3022 * obj is the 'this' pointer, it should be NULL for static
3023 * methods, a MonoObject* for object instances and a pointer to
3024 * the value type for value types.
3026 * The params array contains the arguments to the method with the
3027 * same convention: MonoObject* pointers for object instances and
3028 * pointers to the value type otherwise.
3030 * From unmanaged code you'll usually use the
3031 * mono_runtime_invoke() variant.
3033 * Note that this function doesn't handle virtual methods for
3034 * you, it will exec the exact method you pass: we still need to
3035 * expose a function to lookup the derived class implementation
3036 * of a virtual method (there are examples of this in the code,
3039 * If an exception is thrown, you can't use the MonoObject* result
3040 * from the function.
3042 * If this method cannot be invoked, @error will be set. If the
3043 * method throws an exception (and we're in coop mode) the exception
3044 * will be set in @error.
3046 * If the method returns a value type, it is boxed in an object
3050 mono_runtime_invoke_checked (MonoMethod *method, void *obj, void **params, MonoError* error)
3052 MONO_REQ_GC_UNSAFE_MODE;
3054 if (mono_runtime_get_no_exec ())
3055 g_warning ("Invoking method '%s' when running in no-exec mode.\n", mono_method_full_name (method, TRUE));
3057 return do_runtime_invoke (method, obj, params, NULL, error);
3061 * mono_method_get_unmanaged_thunk:
3062 * @method: method to generate a thunk for.
3064 * Returns an unmanaged->managed thunk that can be used to call
3065 * a managed method directly from C.
3067 * The thunk's C signature closely matches the managed signature:
3069 * C#: public bool Equals (object obj);
3070 * C: typedef MonoBoolean (*Equals)(MonoObject*,
3071 * MonoObject*, MonoException**);
3073 * The 1st ("this") parameter must not be used with static methods:
3075 * C#: public static bool ReferenceEquals (object a, object b);
3076 * C: typedef MonoBoolean (*ReferenceEquals)(MonoObject*, MonoObject*,
3079 * The last argument must be a non-null pointer of a MonoException* pointer.
3080 * It has "out" semantics. After invoking the thunk, *ex will be NULL if no
3081 * exception has been thrown in managed code. Otherwise it will point
3082 * to the MonoException* caught by the thunk. In this case, the result of
3083 * the thunk is undefined:
3085 * MonoMethod *method = ... // MonoMethod* of System.Object.Equals
3086 * MonoException *ex = NULL;
3087 * Equals func = mono_method_get_unmanaged_thunk (method);
3088 * MonoBoolean res = func (thisObj, objToCompare, &ex);
3090 * // handle exception
3093 * The calling convention of the thunk matches the platform's default
3094 * convention. This means that under Windows, C declarations must
3095 * contain the __stdcall attribute:
3097 * C: typedef MonoBoolean (__stdcall *Equals)(MonoObject*,
3098 * MonoObject*, MonoException**);
3102 * Value type arguments and return values are treated as they were objects:
3104 * C#: public static Rectangle Intersect (Rectangle a, Rectangle b);
3105 * C: typedef MonoObject* (*Intersect)(MonoObject*, MonoObject*, MonoException**);
3107 * Arguments must be properly boxed upon trunk's invocation, while return
3108 * values must be unboxed.
3111 mono_method_get_unmanaged_thunk (MonoMethod *method)
3113 MONO_REQ_GC_NEUTRAL_MODE;
3114 MONO_REQ_API_ENTRYPOINT;
3118 MONO_PREPARE_RESET_BLOCKING;
3119 method = mono_marshal_get_thunk_invoke_wrapper (method);
3120 res = mono_compile_method (method);
3121 MONO_FINISH_RESET_BLOCKING;
3127 mono_copy_value (MonoType *type, void *dest, void *value, int deref_pointer)
3129 MONO_REQ_GC_UNSAFE_MODE;
3133 /* object fields cannot be byref, so we don't need a
3135 gpointer *p = (gpointer*)dest;
3142 case MONO_TYPE_BOOLEAN:
3144 case MONO_TYPE_U1: {
3145 guint8 *p = (guint8*)dest;
3146 *p = value ? *(guint8*)value : 0;
3151 case MONO_TYPE_CHAR: {
3152 guint16 *p = (guint16*)dest;
3153 *p = value ? *(guint16*)value : 0;
3156 #if SIZEOF_VOID_P == 4
3161 case MONO_TYPE_U4: {
3162 gint32 *p = (gint32*)dest;
3163 *p = value ? *(gint32*)value : 0;
3166 #if SIZEOF_VOID_P == 8
3171 case MONO_TYPE_U8: {
3172 gint64 *p = (gint64*)dest;
3173 *p = value ? *(gint64*)value : 0;
3176 case MONO_TYPE_R4: {
3177 float *p = (float*)dest;
3178 *p = value ? *(float*)value : 0;
3181 case MONO_TYPE_R8: {
3182 double *p = (double*)dest;
3183 *p = value ? *(double*)value : 0;
3186 case MONO_TYPE_STRING:
3187 case MONO_TYPE_SZARRAY:
3188 case MONO_TYPE_CLASS:
3189 case MONO_TYPE_OBJECT:
3190 case MONO_TYPE_ARRAY:
3191 mono_gc_wbarrier_generic_store (dest, deref_pointer ? *(MonoObject **)value : (MonoObject *)value);
3193 case MONO_TYPE_FNPTR:
3194 case MONO_TYPE_PTR: {
3195 gpointer *p = (gpointer*)dest;
3196 *p = deref_pointer? *(gpointer*)value: value;
3199 case MONO_TYPE_VALUETYPE:
3200 /* note that 't' and 'type->type' can be different */
3201 if (type->type == MONO_TYPE_VALUETYPE && type->data.klass->enumtype) {
3202 t = mono_class_enum_basetype (type->data.klass)->type;
3205 MonoClass *klass = mono_class_from_mono_type (type);
3206 int size = mono_class_value_size (klass, NULL);
3208 mono_gc_bzero_atomic (dest, size);
3210 mono_gc_wbarrier_value_copy (dest, value, 1, klass);
3213 case MONO_TYPE_GENERICINST:
3214 t = type->data.generic_class->container_class->byval_arg.type;
3217 g_error ("got type %x", type->type);
3222 * mono_field_set_value:
3223 * @obj: Instance object
3224 * @field: MonoClassField describing the field to set
3225 * @value: The value to be set
3227 * Sets the value of the field described by @field in the object instance @obj
3228 * to the value passed in @value. This method should only be used for instance
3229 * fields. For static fields, use mono_field_static_set_value.
3231 * The value must be on the native format of the field type.
3234 mono_field_set_value (MonoObject *obj, MonoClassField *field, void *value)
3236 MONO_REQ_GC_UNSAFE_MODE;
3240 g_return_if_fail (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC));
3242 dest = (char*)obj + field->offset;
3243 mono_copy_value (field->type, dest, value, FALSE);
3247 * mono_field_static_set_value:
3248 * @field: MonoClassField describing the field to set
3249 * @value: The value to be set
3251 * Sets the value of the static field described by @field
3252 * to the value passed in @value.
3254 * The value must be on the native format of the field type.
3257 mono_field_static_set_value (MonoVTable *vt, MonoClassField *field, void *value)
3259 MONO_REQ_GC_UNSAFE_MODE;
3263 g_return_if_fail (field->type->attrs & FIELD_ATTRIBUTE_STATIC);
3264 /* you cant set a constant! */
3265 g_return_if_fail (!(field->type->attrs & FIELD_ATTRIBUTE_LITERAL));
3267 if (field->offset == -1) {
3268 /* Special static */
3271 mono_domain_lock (vt->domain);
3272 addr = g_hash_table_lookup (vt->domain->special_static_fields, field);
3273 mono_domain_unlock (vt->domain);
3274 dest = mono_get_special_static_data (GPOINTER_TO_UINT (addr));
3276 dest = (char*)mono_vtable_get_static_field_data (vt) + field->offset;
3278 mono_copy_value (field->type, dest, value, FALSE);
3282 * mono_vtable_get_static_field_data:
3284 * Internal use function: return a pointer to the memory holding the static fields
3285 * for a class or NULL if there are no static fields.
3286 * This is exported only for use by the debugger.
3289 mono_vtable_get_static_field_data (MonoVTable *vt)
3291 MONO_REQ_GC_NEUTRAL_MODE
3293 if (!vt->has_static_fields)
3295 return vt->vtable [vt->klass->vtable_size];
3299 mono_field_get_addr (MonoObject *obj, MonoVTable *vt, MonoClassField *field)
3301 MONO_REQ_GC_UNSAFE_MODE;
3305 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
3306 if (field->offset == -1) {
3307 /* Special static */
3310 mono_domain_lock (vt->domain);
3311 addr = g_hash_table_lookup (vt->domain->special_static_fields, field);
3312 mono_domain_unlock (vt->domain);
3313 src = (guint8 *)mono_get_special_static_data (GPOINTER_TO_UINT (addr));
3315 src = (guint8*)mono_vtable_get_static_field_data (vt) + field->offset;
3318 src = (guint8*)obj + field->offset;
3325 * mono_field_get_value:
3326 * @obj: Object instance
3327 * @field: MonoClassField describing the field to fetch information from
3328 * @value: pointer to the location where the value will be stored
3330 * Use this routine to get the value of the field @field in the object
3333 * The pointer provided by value must be of the field type, for reference
3334 * types this is a MonoObject*, for value types its the actual pointer to
3339 * mono_field_get_value (obj, int_field, &i);
3342 mono_field_get_value (MonoObject *obj, MonoClassField *field, void *value)
3344 MONO_REQ_GC_UNSAFE_MODE;
3350 g_return_if_fail (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC));
3352 src = (char*)obj + field->offset;
3353 mono_copy_value (field->type, value, src, TRUE);
3357 * mono_field_get_value_object:
3358 * @domain: domain where the object will be created (if boxing)
3359 * @field: MonoClassField describing the field to fetch information from
3360 * @obj: The object instance for the field.
3362 * Returns: a new MonoObject with the value from the given field. If the
3363 * field represents a value type, the value is boxed.
3367 mono_field_get_value_object (MonoDomain *domain, MonoClassField *field, MonoObject *obj)
3370 MonoObject* result = mono_field_get_value_object_checked (domain, field, obj, &error);
3371 mono_error_assert_ok (&error);
3376 * mono_field_get_value_object_checked:
3377 * @domain: domain where the object will be created (if boxing)
3378 * @field: MonoClassField describing the field to fetch information from
3379 * @obj: The object instance for the field.
3380 * @error: Set on error.
3382 * Returns: a new MonoObject with the value from the given field. If the
3383 * field represents a value type, the value is boxed. On error returns NULL and sets @error.
3387 mono_field_get_value_object_checked (MonoDomain *domain, MonoClassField *field, MonoObject *obj, MonoError *error)
3389 MONO_REQ_GC_UNSAFE_MODE;
3391 mono_error_init (error);
3395 MonoVTable *vtable = NULL;
3397 gboolean is_static = FALSE;
3398 gboolean is_ref = FALSE;
3399 gboolean is_literal = FALSE;
3400 gboolean is_ptr = FALSE;
3401 MonoType *type = mono_field_get_type_checked (field, error);
3403 return_val_if_nok (error, NULL);
3405 switch (type->type) {
3406 case MONO_TYPE_STRING:
3407 case MONO_TYPE_OBJECT:
3408 case MONO_TYPE_CLASS:
3409 case MONO_TYPE_ARRAY:
3410 case MONO_TYPE_SZARRAY:
3415 case MONO_TYPE_BOOLEAN:
3418 case MONO_TYPE_CHAR:
3427 case MONO_TYPE_VALUETYPE:
3428 is_ref = type->byref;
3430 case MONO_TYPE_GENERICINST:
3431 is_ref = !mono_type_generic_inst_is_valuetype (type);
3437 g_error ("type 0x%x not handled in "
3438 "mono_field_get_value_object", type->type);
3442 if (type->attrs & FIELD_ATTRIBUTE_LITERAL)
3445 if (type->attrs & FIELD_ATTRIBUTE_STATIC) {
3449 vtable = mono_class_vtable_full (domain, field->parent, error);
3450 return_val_if_nok (error, NULL);
3452 if (!vtable->initialized) {
3453 mono_runtime_class_init_full (vtable, error);
3454 return_val_if_nok (error, NULL);
3463 get_default_field_value (domain, field, &o);
3464 } else if (is_static) {
3465 mono_field_static_get_value (vtable, field, &o);
3467 mono_field_get_value (obj, field, &o);
3473 static MonoMethod *m;
3479 MonoClass *ptr_klass = mono_class_get_pointer_class ();
3480 m = mono_class_get_method_from_name_flags (ptr_klass, "Box", 2, METHOD_ATTRIBUTE_STATIC);
3486 get_default_field_value (domain, field, v);
3487 } else if (is_static) {
3488 mono_field_static_get_value (vtable, field, v);
3490 mono_field_get_value (obj, field, v);
3493 /* MONO_TYPE_PTR is passed by value to runtime_invoke () */
3494 args [0] = ptr ? *ptr : NULL;
3495 args [1] = mono_type_get_object_checked (mono_domain_get (), type, error);
3496 return_val_if_nok (error, NULL);
3498 o = mono_runtime_invoke_checked (m, NULL, args, error);
3499 return_val_if_nok (error, NULL);
3504 /* boxed value type */
3505 klass = mono_class_from_mono_type (type);
3507 if (mono_class_is_nullable (klass))
3508 return mono_nullable_box (mono_field_get_addr (obj, vtable, field), klass, error);
3510 o = mono_object_new_checked (domain, klass, error);
3511 return_val_if_nok (error, NULL);
3512 v = ((gchar *) o) + sizeof (MonoObject);
3515 get_default_field_value (domain, field, v);
3516 } else if (is_static) {
3517 mono_field_static_get_value (vtable, field, v);
3519 mono_field_get_value (obj, field, v);
3526 mono_get_constant_value_from_blob (MonoDomain* domain, MonoTypeEnum type, const char *blob, void *value)
3528 MONO_REQ_GC_UNSAFE_MODE;
3531 const char *p = blob;
3532 mono_metadata_decode_blob_size (p, &p);
3535 case MONO_TYPE_BOOLEAN:
3538 *(guint8 *) value = *p;
3540 case MONO_TYPE_CHAR:
3543 *(guint16*) value = read16 (p);
3547 *(guint32*) value = read32 (p);
3551 *(guint64*) value = read64 (p);
3554 readr4 (p, (float*) value);
3557 readr8 (p, (double*) value);
3559 case MONO_TYPE_STRING:
3560 *(gpointer*) value = mono_ldstr_metadata_sig (domain, blob);
3562 case MONO_TYPE_CLASS:
3563 *(gpointer*) value = NULL;
3567 g_warning ("type 0x%02x should not be in constant table", type);
3573 get_default_field_value (MonoDomain* domain, MonoClassField *field, void *value)
3575 MONO_REQ_GC_NEUTRAL_MODE;
3577 MonoTypeEnum def_type;
3580 data = mono_class_get_field_default_value (field, &def_type);
3581 mono_get_constant_value_from_blob (domain, def_type, data, value);
3585 mono_field_static_get_value_for_thread (MonoInternalThread *thread, MonoVTable *vt, MonoClassField *field, void *value)
3587 MONO_REQ_GC_UNSAFE_MODE;
3591 g_return_if_fail (field->type->attrs & FIELD_ATTRIBUTE_STATIC);
3593 if (field->type->attrs & FIELD_ATTRIBUTE_LITERAL) {
3594 get_default_field_value (vt->domain, field, value);
3598 if (field->offset == -1) {
3599 /* Special static */
3600 gpointer addr = g_hash_table_lookup (vt->domain->special_static_fields, field);
3601 src = mono_get_special_static_data_for_thread (thread, GPOINTER_TO_UINT (addr));
3603 src = (char*)mono_vtable_get_static_field_data (vt) + field->offset;
3605 mono_copy_value (field->type, value, src, TRUE);
3609 * mono_field_static_get_value:
3610 * @vt: vtable to the object
3611 * @field: MonoClassField describing the field to fetch information from
3612 * @value: where the value is returned
3614 * Use this routine to get the value of the static field @field value.
3616 * The pointer provided by value must be of the field type, for reference
3617 * types this is a MonoObject*, for value types its the actual pointer to
3622 * mono_field_static_get_value (vt, int_field, &i);
3625 mono_field_static_get_value (MonoVTable *vt, MonoClassField *field, void *value)
3627 MONO_REQ_GC_NEUTRAL_MODE;
3629 mono_field_static_get_value_for_thread (mono_thread_internal_current (), vt, field, value);
3633 * mono_property_set_value:
3634 * @prop: MonoProperty to set
3635 * @obj: instance object on which to act
3636 * @params: parameters to pass to the propery
3637 * @exc: optional exception
3639 * Invokes the property's set method with the given arguments on the
3640 * object instance obj (or NULL for static properties).
3642 * You can pass NULL as the exc argument if you don't want to
3643 * catch exceptions, otherwise, *exc will be set to the exception
3644 * thrown, if any. if an exception is thrown, you can't use the
3645 * MonoObject* result from the function.
3648 mono_property_set_value (MonoProperty *prop, void *obj, void **params, MonoObject **exc)
3650 MONO_REQ_GC_UNSAFE_MODE;
3653 do_runtime_invoke (prop->set, obj, params, exc, &error);
3654 if (exc && *exc == NULL && !mono_error_ok (&error)) {
3655 *exc = (MonoObject*) mono_error_convert_to_exception (&error);
3657 mono_error_cleanup (&error);
3662 * mono_property_set_value_checked:
3663 * @prop: MonoProperty to set
3664 * @obj: instance object on which to act
3665 * @params: parameters to pass to the propery
3666 * @error: set on error
3668 * Invokes the property's set method with the given arguments on the
3669 * object instance obj (or NULL for static properties).
3671 * Returns: TRUE on success. On failure returns FALSE and sets @error.
3672 * If an exception is thrown, it will be caught and returned via @error.
3675 mono_property_set_value_checked (MonoProperty *prop, void *obj, void **params, MonoError *error)
3677 MONO_REQ_GC_UNSAFE_MODE;
3681 mono_error_init (error);
3682 do_runtime_invoke (prop->set, obj, params, &exc, error);
3683 if (exc != NULL && is_ok (error))
3684 mono_error_set_exception_instance (error, (MonoException*)exc);
3685 return is_ok (error);
3689 * mono_property_get_value:
3690 * @prop: MonoProperty to fetch
3691 * @obj: instance object on which to act
3692 * @params: parameters to pass to the propery
3693 * @exc: optional exception
3695 * Invokes the property's get method with the given arguments on the
3696 * object instance obj (or NULL for static properties).
3698 * You can pass NULL as the exc argument if you don't want to
3699 * catch exceptions, otherwise, *exc will be set to the exception
3700 * thrown, if any. if an exception is thrown, you can't use the
3701 * MonoObject* result from the function.
3703 * Returns: the value from invoking the get method on the property.
3706 mono_property_get_value (MonoProperty *prop, void *obj, void **params, MonoObject **exc)
3708 MONO_REQ_GC_UNSAFE_MODE;
3711 MonoObject *val = do_runtime_invoke (prop->get, obj, params, exc, &error);
3712 if (exc && *exc == NULL && !mono_error_ok (&error)) {
3713 *exc = (MonoObject*) mono_error_convert_to_exception (&error);
3715 mono_error_cleanup (&error); /* FIXME don't raise here */
3722 * mono_property_get_value_checked:
3723 * @prop: MonoProperty to fetch
3724 * @obj: instance object on which to act
3725 * @params: parameters to pass to the propery
3726 * @error: set on error
3728 * Invokes the property's get method with the given arguments on the
3729 * object instance obj (or NULL for static properties).
3731 * If an exception is thrown, you can't use the
3732 * MonoObject* result from the function. The exception will be propagated via @error.
3734 * Returns: the value from invoking the get method on the property. On
3735 * failure returns NULL and sets @error.
3738 mono_property_get_value_checked (MonoProperty *prop, void *obj, void **params, MonoError *error)
3740 MONO_REQ_GC_UNSAFE_MODE;
3743 MonoObject *val = do_runtime_invoke (prop->get, obj, params, &exc, error);
3744 if (exc != NULL && !is_ok (error))
3745 mono_error_set_exception_instance (error, (MonoException*) exc);
3753 * mono_nullable_init:
3754 * @buf: The nullable structure to initialize.
3755 * @value: the value to initialize from
3756 * @klass: the type for the object
3758 * Initialize the nullable structure pointed to by @buf from @value which
3759 * should be a boxed value type. The size of @buf should be able to hold
3760 * as much data as the @klass->instance_size (which is the number of bytes
3761 * that will be copies).
3763 * Since Nullables have variable structure, we can not define a C
3764 * structure for them.
3767 mono_nullable_init (guint8 *buf, MonoObject *value, MonoClass *klass)
3769 MONO_REQ_GC_UNSAFE_MODE;
3771 MonoClass *param_class = klass->cast_class;
3773 mono_class_setup_fields_locking (klass);
3774 g_assert (klass->fields_inited);
3776 g_assert (mono_class_from_mono_type (klass->fields [0].type) == param_class);
3777 g_assert (mono_class_from_mono_type (klass->fields [1].type) == mono_defaults.boolean_class);
3779 *(guint8*)(buf + klass->fields [1].offset - sizeof (MonoObject)) = value ? 1 : 0;
3781 if (param_class->has_references)
3782 mono_gc_wbarrier_value_copy (buf + klass->fields [0].offset - sizeof (MonoObject), mono_object_unbox (value), 1, param_class);
3784 mono_gc_memmove_atomic (buf + klass->fields [0].offset - sizeof (MonoObject), mono_object_unbox (value), mono_class_value_size (param_class, NULL));
3786 mono_gc_bzero_atomic (buf + klass->fields [0].offset - sizeof (MonoObject), mono_class_value_size (param_class, NULL));
3791 * mono_nullable_box:
3792 * @buf: The buffer representing the data to be boxed
3793 * @klass: the type to box it as.
3794 * @error: set on oerr
3796 * Creates a boxed vtype or NULL from the Nullable structure pointed to by
3797 * @buf. On failure returns NULL and sets @error
3800 mono_nullable_box (guint8 *buf, MonoClass *klass, MonoError *error)
3802 MONO_REQ_GC_UNSAFE_MODE;
3804 mono_error_init (error);
3805 MonoClass *param_class = klass->cast_class;
3807 mono_class_setup_fields_locking (klass);
3808 g_assert (klass->fields_inited);
3810 g_assert (mono_class_from_mono_type (klass->fields [0].type) == param_class);
3811 g_assert (mono_class_from_mono_type (klass->fields [1].type) == mono_defaults.boolean_class);
3813 if (*(guint8*)(buf + klass->fields [1].offset - sizeof (MonoObject))) {
3814 MonoObject *o = mono_object_new_checked (mono_domain_get (), param_class, error);
3815 return_val_if_nok (error, NULL);
3816 if (param_class->has_references)
3817 mono_gc_wbarrier_value_copy (mono_object_unbox (o), buf + klass->fields [0].offset - sizeof (MonoObject), 1, param_class);
3819 mono_gc_memmove_atomic (mono_object_unbox (o), buf + klass->fields [0].offset - sizeof (MonoObject), mono_class_value_size (param_class, NULL));
3827 * mono_get_delegate_invoke:
3828 * @klass: The delegate class
3830 * Returns: the MonoMethod for the "Invoke" method in the delegate klass or NULL if @klass is a broken delegate type
3833 mono_get_delegate_invoke (MonoClass *klass)
3835 MONO_REQ_GC_NEUTRAL_MODE;
3839 /* This is called at runtime, so avoid the slower search in metadata */
3840 mono_class_setup_methods (klass);
3841 if (mono_class_has_failure (klass))
3843 im = mono_class_get_method_from_name (klass, "Invoke", -1);
3848 * mono_get_delegate_begin_invoke:
3849 * @klass: The delegate class
3851 * Returns: the MonoMethod for the "BeginInvoke" method in the delegate klass or NULL if @klass is a broken delegate type
3854 mono_get_delegate_begin_invoke (MonoClass *klass)
3856 MONO_REQ_GC_NEUTRAL_MODE;
3860 /* This is called at runtime, so avoid the slower search in metadata */
3861 mono_class_setup_methods (klass);
3862 if (mono_class_has_failure (klass))
3864 im = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
3869 * mono_get_delegate_end_invoke:
3870 * @klass: The delegate class
3872 * Returns: the MonoMethod for the "EndInvoke" method in the delegate klass or NULL if @klass is a broken delegate type
3875 mono_get_delegate_end_invoke (MonoClass *klass)
3877 MONO_REQ_GC_NEUTRAL_MODE;
3881 /* This is called at runtime, so avoid the slower search in metadata */
3882 mono_class_setup_methods (klass);
3883 if (mono_class_has_failure (klass))
3885 im = mono_class_get_method_from_name (klass, "EndInvoke", -1);
3890 * mono_runtime_delegate_invoke:
3891 * @delegate: pointer to a delegate object.
3892 * @params: parameters for the delegate.
3893 * @exc: Pointer to the exception result.
3895 * Invokes the delegate method @delegate with the parameters provided.
3897 * You can pass NULL as the exc argument if you don't want to
3898 * catch exceptions, otherwise, *exc will be set to the exception
3899 * thrown, if any. if an exception is thrown, you can't use the
3900 * MonoObject* result from the function.
3903 mono_runtime_delegate_invoke (MonoObject *delegate, void **params, MonoObject **exc)
3905 MONO_REQ_GC_UNSAFE_MODE;
3909 MonoClass *klass = delegate->vtable->klass;
3912 im = mono_get_delegate_invoke (klass);
3914 g_error ("Could not lookup delegate invoke method for delegate %s", mono_type_get_full_name (klass));
3917 o = mono_runtime_try_invoke (im, delegate, params, exc, &error);
3918 if (*exc == NULL && !mono_error_ok (&error))
3919 *exc = (MonoObject*) mono_error_convert_to_exception (&error);
3921 mono_error_cleanup (&error);
3923 o = mono_runtime_invoke_checked (im, delegate, params, &error);
3924 mono_error_raise_exception (&error); /* FIXME don't raise here */
3930 static char **main_args = NULL;
3931 static int num_main_args = 0;
3934 * mono_runtime_get_main_args:
3936 * Returns: a MonoArray with the arguments passed to the main program
3939 mono_runtime_get_main_args (void)
3941 MONO_REQ_GC_UNSAFE_MODE;
3943 MonoArray *result = mono_runtime_get_main_args_checked (&error);
3944 mono_error_assert_ok (&error);
3949 * mono_runtime_get_main_args:
3950 * @error: set on error
3952 * Returns: a MonoArray with the arguments passed to the main
3953 * program. On failure returns NULL and sets @error.
3956 mono_runtime_get_main_args_checked (MonoError *error)
3960 MonoDomain *domain = mono_domain_get ();
3962 mono_error_init (error);
3964 res = (MonoArray*)mono_array_new_checked (domain, mono_defaults.string_class, num_main_args, error);
3965 return_val_if_nok (error, NULL);
3967 for (i = 0; i < num_main_args; ++i)
3968 mono_array_setref (res, i, mono_string_new (domain, main_args [i]));
3974 free_main_args (void)
3976 MONO_REQ_GC_NEUTRAL_MODE;
3980 for (i = 0; i < num_main_args; ++i)
3981 g_free (main_args [i]);
3988 * mono_runtime_set_main_args:
3989 * @argc: number of arguments from the command line
3990 * @argv: array of strings from the command line
3992 * Set the command line arguments from an embedding application that doesn't otherwise call
3993 * mono_runtime_run_main ().
3996 mono_runtime_set_main_args (int argc, char* argv[])
3998 MONO_REQ_GC_NEUTRAL_MODE;
4003 main_args = g_new0 (char*, argc);
4004 num_main_args = argc;
4006 for (i = 0; i < argc; ++i) {
4009 utf8_arg = mono_utf8_from_external (argv[i]);
4010 if (utf8_arg == NULL) {
4011 g_print ("\nCannot determine the text encoding for argument %d (%s).\n", i, argv [i]);
4012 g_print ("Please add the correct encoding to MONO_EXTERNAL_ENCODINGS and try again.\n");
4016 main_args [i] = utf8_arg;
4023 * mono_runtime_run_main:
4024 * @method: the method to start the application with (usually Main)
4025 * @argc: number of arguments from the command line
4026 * @argv: array of strings from the command line
4027 * @exc: excetption results
4029 * Execute a standard Main() method (argc/argv contains the
4030 * executable name). This method also sets the command line argument value
4031 * needed by System.Environment.
4036 mono_runtime_run_main (MonoMethod *method, int argc, char* argv[],
4039 MONO_REQ_GC_UNSAFE_MODE;
4043 MonoArray *args = NULL;
4044 MonoDomain *domain = mono_domain_get ();
4045 gchar *utf8_fullpath;
4046 MonoMethodSignature *sig;
4048 g_assert (method != NULL);
4050 mono_thread_set_main (mono_thread_current ());
4052 main_args = g_new0 (char*, argc);
4053 num_main_args = argc;
4055 if (!g_path_is_absolute (argv [0])) {
4056 gchar *basename = g_path_get_basename (argv [0]);
4057 gchar *fullpath = g_build_filename (method->klass->image->assembly->basedir,
4061 utf8_fullpath = mono_utf8_from_external (fullpath);
4062 if(utf8_fullpath == NULL) {
4063 /* Printing the arg text will cause glib to
4064 * whinge about "Invalid UTF-8", but at least
4065 * its relevant, and shows the problem text
4068 g_print ("\nCannot determine the text encoding for the assembly location: %s\n", fullpath);
4069 g_print ("Please add the correct encoding to MONO_EXTERNAL_ENCODINGS and try again.\n");
4076 utf8_fullpath = mono_utf8_from_external (argv[0]);
4077 if(utf8_fullpath == NULL) {
4078 g_print ("\nCannot determine the text encoding for the assembly location: %s\n", argv[0]);
4079 g_print ("Please add the correct encoding to MONO_EXTERNAL_ENCODINGS and try again.\n");
4084 main_args [0] = utf8_fullpath;
4086 for (i = 1; i < argc; ++i) {
4089 utf8_arg=mono_utf8_from_external (argv[i]);
4090 if(utf8_arg==NULL) {
4091 /* Ditto the comment about Invalid UTF-8 here */
4092 g_print ("\nCannot determine the text encoding for argument %d (%s).\n", i, argv[i]);
4093 g_print ("Please add the correct encoding to MONO_EXTERNAL_ENCODINGS and try again.\n");
4097 main_args [i] = utf8_arg;
4102 sig = mono_method_signature (method);
4104 g_print ("Unable to load Main method.\n");
4108 if (sig->param_count) {
4109 args = (MonoArray*)mono_array_new_checked (domain, mono_defaults.string_class, argc, &error);
4110 mono_error_assert_ok (&error);
4111 for (i = 0; i < argc; ++i) {
4112 /* The encodings should all work, given that
4113 * we've checked all these args for the
4116 gchar *str = mono_utf8_from_external (argv [i]);
4117 MonoString *arg = mono_string_new (domain, str);
4118 mono_array_setref (args, i, arg);
4122 args = (MonoArray*)mono_array_new_checked (domain, mono_defaults.string_class, 0, &error);
4123 mono_error_assert_ok (&error);
4126 mono_assembly_set_main (method->klass->image->assembly);
4128 return mono_runtime_exec_main (method, args, exc);
4132 serialize_object (MonoObject *obj, gboolean *failure, MonoObject **exc)
4134 static MonoMethod *serialize_method;
4140 if (!serialize_method) {
4141 MonoClass *klass = mono_class_get_remoting_services_class ();
4142 serialize_method = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
4145 if (!serialize_method) {
4150 g_assert (!mono_class_is_marshalbyref (mono_object_class (obj)));
4155 array = mono_runtime_try_invoke (serialize_method, NULL, params, exc, &error);
4156 if (*exc == NULL && !mono_error_ok (&error))
4157 *exc = (MonoObject*) mono_error_convert_to_exception (&error); /* FIXME convert serialize_object to MonoError */
4159 mono_error_cleanup (&error);
4168 deserialize_object (MonoObject *obj, gboolean *failure, MonoObject **exc)
4170 MONO_REQ_GC_UNSAFE_MODE;
4172 static MonoMethod *deserialize_method;
4178 if (!deserialize_method) {
4179 MonoClass *klass = mono_class_get_remoting_services_class ();
4180 deserialize_method = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
4182 if (!deserialize_method) {
4190 result = mono_runtime_try_invoke (deserialize_method, NULL, params, exc, &error);
4191 if (*exc == NULL && !mono_error_ok (&error))
4192 *exc = (MonoObject*) mono_error_convert_to_exception (&error); /* FIXME convert deserialize_object to MonoError */
4194 mono_error_cleanup (&error);
4202 #ifndef DISABLE_REMOTING
4204 make_transparent_proxy (MonoObject *obj, MonoError *error)
4206 MONO_REQ_GC_UNSAFE_MODE;
4208 static MonoMethod *get_proxy_method;
4210 MonoDomain *domain = mono_domain_get ();
4211 MonoRealProxy *real_proxy;
4212 MonoReflectionType *reflection_type;
4213 MonoTransparentProxy *transparent_proxy;
4215 mono_error_init (error);
4217 if (!get_proxy_method)
4218 get_proxy_method = mono_class_get_method_from_name (mono_defaults.real_proxy_class, "GetTransparentProxy", 0);
4220 g_assert (mono_class_is_marshalbyref (obj->vtable->klass));
4222 real_proxy = (MonoRealProxy*) mono_object_new_checked (domain, mono_defaults.real_proxy_class, error);
4223 return_val_if_nok (error, NULL);
4224 reflection_type = mono_type_get_object_checked (domain, &obj->vtable->klass->byval_arg, error);
4225 return_val_if_nok (error, NULL);
4227 MONO_OBJECT_SETREF (real_proxy, class_to_proxy, reflection_type);
4228 MONO_OBJECT_SETREF (real_proxy, unwrapped_server, obj);
4230 MonoObject *exc = NULL;
4232 transparent_proxy = (MonoTransparentProxy*) mono_runtime_try_invoke (get_proxy_method, real_proxy, NULL, &exc, error);
4233 if (exc != NULL && is_ok (error))
4234 mono_error_set_exception_instance (error, (MonoException*)exc);
4236 return (MonoObject*) transparent_proxy;
4238 #endif /* DISABLE_REMOTING */
4241 * mono_object_xdomain_representation
4243 * @target_domain: a domain
4244 * @error: set on error.
4246 * Creates a representation of obj in the domain target_domain. This
4247 * is either a copy of obj arrived through via serialization and
4248 * deserialization or a proxy, depending on whether the object is
4249 * serializable or marshal by ref. obj must not be in target_domain.
4251 * If the object cannot be represented in target_domain, NULL is
4252 * returned and @error is set appropriately.
4255 mono_object_xdomain_representation (MonoObject *obj, MonoDomain *target_domain, MonoError *error)
4257 MONO_REQ_GC_UNSAFE_MODE;
4259 mono_error_init (error);
4260 MonoObject *deserialized = NULL;
4262 #ifndef DISABLE_REMOTING
4263 if (mono_class_is_marshalbyref (mono_object_class (obj))) {
4264 deserialized = make_transparent_proxy (obj, error);
4269 gboolean failure = FALSE;
4270 MonoDomain *domain = mono_domain_get ();
4271 MonoObject *serialized;
4272 MonoObject *exc = NULL;
4274 mono_domain_set_internal_with_options (mono_object_domain (obj), FALSE);
4275 serialized = serialize_object (obj, &failure, &exc);
4276 mono_domain_set_internal_with_options (target_domain, FALSE);
4278 deserialized = deserialize_object (serialized, &failure, &exc);
4279 if (domain != target_domain)
4280 mono_domain_set_internal_with_options (domain, FALSE);
4282 mono_error_set_exception_instance (error, (MonoException*)exc);
4285 return deserialized;
4288 /* Used in call_unhandled_exception_delegate */
4290 create_unhandled_exception_eventargs (MonoObject *exc)
4292 MONO_REQ_GC_UNSAFE_MODE;
4297 MonoMethod *method = NULL;
4298 MonoBoolean is_terminating = TRUE;
4301 klass = mono_class_get_unhandled_exception_event_args_class ();
4302 mono_class_init (klass);
4304 /* UnhandledExceptionEventArgs only has 1 public ctor with 2 args */
4305 method = mono_class_get_method_from_name_flags (klass, ".ctor", 2, METHOD_ATTRIBUTE_PUBLIC);
4309 args [1] = &is_terminating;
4311 obj = mono_object_new_checked (mono_domain_get (), klass, &error);
4312 mono_error_raise_exception (&error); /* FIXME don't raise here */
4314 mono_runtime_invoke_checked (method, obj, args, &error);
4315 mono_error_raise_exception (&error); /* FIXME don't raise here */
4320 /* Used in mono_unhandled_exception */
4322 call_unhandled_exception_delegate (MonoDomain *domain, MonoObject *delegate, MonoObject *exc) {
4323 MONO_REQ_GC_UNSAFE_MODE;
4325 MonoObject *e = NULL;
4327 MonoDomain *current_domain = mono_domain_get ();
4329 if (domain != current_domain)
4330 mono_domain_set_internal_with_options (domain, FALSE);
4332 g_assert (domain == mono_object_domain (domain->domain));
4334 if (mono_object_domain (exc) != domain) {
4337 exc = mono_object_xdomain_representation (exc, domain, &error);
4339 if (!is_ok (&error)) {
4340 MonoError inner_error;
4341 MonoException *serialization_exc = mono_error_convert_to_exception (&error);
4342 exc = mono_object_xdomain_representation ((MonoObject*)serialization_exc, domain, &inner_error);
4343 mono_error_assert_ok (&inner_error);
4345 exc = (MonoObject*) mono_exception_from_name_msg (mono_get_corlib (),
4346 "System.Runtime.Serialization", "SerializationException",
4347 "Could not serialize unhandled exception.");
4351 g_assert (mono_object_domain (exc) == domain);
4353 pa [0] = domain->domain;
4354 pa [1] = create_unhandled_exception_eventargs (exc);
4355 mono_runtime_delegate_invoke (delegate, pa, &e);
4357 if (domain != current_domain)
4358 mono_domain_set_internal_with_options (current_domain, FALSE);
4362 gchar *msg = mono_string_to_utf8_checked (((MonoException *) e)->message, &error);
4363 if (!mono_error_ok (&error)) {
4364 g_warning ("Exception inside UnhandledException handler with invalid message (Invalid characters)\n");
4365 mono_error_cleanup (&error);
4367 g_warning ("exception inside UnhandledException handler: %s\n", msg);
4373 static MonoRuntimeUnhandledExceptionPolicy runtime_unhandled_exception_policy = MONO_UNHANDLED_POLICY_CURRENT;
4376 * mono_runtime_unhandled_exception_policy_set:
4377 * @policy: the new policy
4379 * This is a VM internal routine.
4381 * Sets the runtime policy for handling unhandled exceptions.
4384 mono_runtime_unhandled_exception_policy_set (MonoRuntimeUnhandledExceptionPolicy policy) {
4385 runtime_unhandled_exception_policy = policy;
4389 * mono_runtime_unhandled_exception_policy_get:
4391 * This is a VM internal routine.
4393 * Gets the runtime policy for handling unhandled exceptions.
4395 MonoRuntimeUnhandledExceptionPolicy
4396 mono_runtime_unhandled_exception_policy_get (void) {
4397 return runtime_unhandled_exception_policy;
4401 * mono_unhandled_exception:
4402 * @exc: exception thrown
4404 * This is a VM internal routine.
4406 * We call this function when we detect an unhandled exception
4407 * in the default domain.
4409 * It invokes the * UnhandledException event in AppDomain or prints
4410 * a warning to the console
4413 mono_unhandled_exception (MonoObject *exc)
4415 MONO_REQ_GC_UNSAFE_MODE;
4418 MonoClassField *field;
4419 MonoDomain *current_domain, *root_domain;
4420 MonoObject *current_appdomain_delegate = NULL, *root_appdomain_delegate = NULL;
4422 if (mono_class_has_parent (exc->vtable->klass, mono_defaults.threadabortexception_class))
4425 field = mono_class_get_field_from_name (mono_defaults.appdomain_class, "UnhandledException");
4428 current_domain = mono_domain_get ();
4429 root_domain = mono_get_root_domain ();
4431 root_appdomain_delegate = mono_field_get_value_object_checked (root_domain, field, (MonoObject*) root_domain->domain, &error);
4432 mono_error_raise_exception (&error); /* FIXME don't raise here */
4433 if (current_domain != root_domain) {
4434 current_appdomain_delegate = mono_field_get_value_object_checked (current_domain, field, (MonoObject*) current_domain->domain, &error);
4435 mono_error_raise_exception (&error); /* FIXME don't raise here */
4438 if (!current_appdomain_delegate && !root_appdomain_delegate) {
4439 mono_print_unhandled_exception (exc);
4441 if (root_appdomain_delegate)
4442 call_unhandled_exception_delegate (root_domain, root_appdomain_delegate, exc);
4443 if (current_appdomain_delegate)
4444 call_unhandled_exception_delegate (current_domain, current_appdomain_delegate, exc);
4447 /* set exitcode only if we will abort the process */
4448 if ((main_thread && mono_thread_internal_current () == main_thread->internal_thread)
4449 || mono_runtime_unhandled_exception_policy_get () == MONO_UNHANDLED_POLICY_CURRENT)
4451 mono_environment_exitcode_set (1);
4456 * mono_runtime_exec_managed_code:
4457 * @domain: Application domain
4458 * @main_func: function to invoke from the execution thread
4459 * @main_args: parameter to the main_func
4461 * Launch a new thread to execute a function
4463 * main_func is called back from the thread with main_args as the
4464 * parameter. The callback function is expected to start Main()
4465 * eventually. This function then waits for all managed threads to
4467 * It is not necesseray anymore to execute managed code in a subthread,
4468 * so this function should not be used anymore by default: just
4469 * execute the code and then call mono_thread_manage ().
4472 mono_runtime_exec_managed_code (MonoDomain *domain,
4473 MonoMainThreadFunc main_func,
4476 mono_thread_create (domain, main_func, main_args);
4478 mono_thread_manage ();
4482 * Execute a standard Main() method (args doesn't contain the
4486 mono_runtime_exec_main (MonoMethod *method, MonoArray *args, MonoObject **exc)
4488 MONO_REQ_GC_UNSAFE_MODE;
4494 MonoCustomAttrInfo* cinfo;
4495 gboolean has_stathread_attribute;
4496 MonoInternalThread* thread = mono_thread_internal_current ();
4502 domain = mono_object_domain (args);
4503 if (!domain->entry_assembly) {
4505 MonoAssembly *assembly;
4507 assembly = method->klass->image->assembly;
4508 domain->entry_assembly = assembly;
4509 /* Domains created from another domain already have application_base and configuration_file set */
4510 if (domain->setup->application_base == NULL) {
4511 MONO_OBJECT_SETREF (domain->setup, application_base, mono_string_new (domain, assembly->basedir));
4514 if (domain->setup->configuration_file == NULL) {
4515 str = g_strconcat (assembly->image->name, ".config", NULL);
4516 MONO_OBJECT_SETREF (domain->setup, configuration_file, mono_string_new (domain, str));
4518 mono_domain_set_options_from_config (domain);
4522 cinfo = mono_custom_attrs_from_method_checked (method, &error);
4523 mono_error_cleanup (&error); /* FIXME warn here? */
4525 has_stathread_attribute = mono_custom_attrs_has_attr (cinfo, mono_class_get_sta_thread_attribute_class ());
4527 mono_custom_attrs_free (cinfo);
4529 has_stathread_attribute = FALSE;
4531 if (has_stathread_attribute) {
4532 thread->apartment_state = ThreadApartmentState_STA;
4534 thread->apartment_state = ThreadApartmentState_MTA;
4536 mono_thread_init_apartment_state ();
4538 /* FIXME: check signature of method */
4539 if (mono_method_signature (method)->ret->type == MONO_TYPE_I4) {
4542 res = mono_runtime_try_invoke (method, NULL, pa, exc, &error);
4543 if (*exc == NULL && !mono_error_ok (&error))
4544 *exc = (MonoObject*) mono_error_convert_to_exception (&error);
4546 mono_error_cleanup (&error);
4548 res = mono_runtime_invoke_checked (method, NULL, pa, &error);
4549 mono_error_raise_exception (&error); /* FIXME don't raise here */
4553 rval = *(guint32 *)((char *)res + sizeof (MonoObject));
4557 mono_environment_exitcode_set (rval);
4560 mono_runtime_try_invoke (method, NULL, pa, exc, &error);
4561 if (*exc == NULL && !mono_error_ok (&error))
4562 *exc = (MonoObject*) mono_error_convert_to_exception (&error);
4564 mono_error_cleanup (&error);
4566 mono_runtime_invoke_checked (method, NULL, pa, &error);
4567 mono_error_raise_exception (&error); /* FIXME don't raise here */
4573 /* If the return type of Main is void, only
4574 * set the exitcode if an exception was thrown
4575 * (we don't want to blow away an
4576 * explicitly-set exit code)
4579 mono_environment_exitcode_set (rval);
4587 * mono_runtime_invoke_array:
4588 * @method: method to invoke
4589 * @obJ: object instance
4590 * @params: arguments to the method
4591 * @exc: exception information.
4593 * Invokes the method represented by @method on the object @obj.
4595 * obj is the 'this' pointer, it should be NULL for static
4596 * methods, a MonoObject* for object instances and a pointer to
4597 * the value type for value types.
4599 * The params array contains the arguments to the method with the
4600 * same convention: MonoObject* pointers for object instances and
4601 * pointers to the value type otherwise. The _invoke_array
4602 * variant takes a C# object[] as the params argument (MonoArray
4603 * *params): in this case the value types are boxed inside the
4604 * respective reference representation.
4606 * From unmanaged code you'll usually use the
4607 * mono_runtime_invoke_checked() variant.
4609 * Note that this function doesn't handle virtual methods for
4610 * you, it will exec the exact method you pass: we still need to
4611 * expose a function to lookup the derived class implementation
4612 * of a virtual method (there are examples of this in the code,
4615 * You can pass NULL as the exc argument if you don't want to
4616 * catch exceptions, otherwise, *exc will be set to the exception
4617 * thrown, if any. if an exception is thrown, you can't use the
4618 * MonoObject* result from the function.
4620 * If the method returns a value type, it is boxed in an object
4624 mono_runtime_invoke_array (MonoMethod *method, void *obj, MonoArray *params,
4627 MONO_REQ_GC_UNSAFE_MODE;
4630 MonoMethodSignature *sig = mono_method_signature (method);
4631 gpointer *pa = NULL;
4634 gboolean has_byref_nullables = FALSE;
4636 if (NULL != params) {
4637 pa = (void **)alloca (sizeof (gpointer) * mono_array_length (params));
4638 for (i = 0; i < mono_array_length (params); i++) {
4639 MonoType *t = sig->params [i];
4645 case MONO_TYPE_BOOLEAN:
4648 case MONO_TYPE_CHAR:
4657 case MONO_TYPE_VALUETYPE:
4658 if (t->type == MONO_TYPE_VALUETYPE && mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4659 /* The runtime invoke wrapper needs the original boxed vtype, it does handle byref values as well. */
4660 pa [i] = mono_array_get (params, MonoObject*, i);
4662 has_byref_nullables = TRUE;
4664 /* MS seems to create the objects if a null is passed in */
4665 if (!mono_array_get (params, MonoObject*, i)) {
4666 MonoObject *o = mono_object_new_checked (mono_domain_get (), mono_class_from_mono_type (sig->params [i]), &error);
4667 mono_error_raise_exception (&error); /* FIXME don't raise here */
4668 mono_array_setref (params, i, o);
4673 * We can't pass the unboxed vtype byref to the callee, since
4674 * that would mean the callee would be able to modify boxed
4675 * primitive types. So we (and MS) make a copy of the boxed
4676 * object, pass that to the callee, and replace the original
4677 * boxed object in the arg array with the copy.
4679 MonoObject *orig = mono_array_get (params, MonoObject*, i);
4680 MonoObject *copy = mono_value_box_checked (mono_domain_get (), orig->vtable->klass, mono_object_unbox (orig), &error);
4681 mono_error_raise_exception (&error); /* FIXME don't raise here */
4682 mono_array_setref (params, i, copy);
4685 pa [i] = mono_object_unbox (mono_array_get (params, MonoObject*, i));
4688 case MONO_TYPE_STRING:
4689 case MONO_TYPE_OBJECT:
4690 case MONO_TYPE_CLASS:
4691 case MONO_TYPE_ARRAY:
4692 case MONO_TYPE_SZARRAY:
4694 pa [i] = mono_array_addr (params, MonoObject*, i);
4695 // FIXME: I need to check this code path
4697 pa [i] = mono_array_get (params, MonoObject*, i);
4699 case MONO_TYPE_GENERICINST:
4701 t = &t->data.generic_class->container_class->this_arg;
4703 t = &t->data.generic_class->container_class->byval_arg;
4705 case MONO_TYPE_PTR: {
4708 /* The argument should be an IntPtr */
4709 arg = mono_array_get (params, MonoObject*, i);
4713 g_assert (arg->vtable->klass == mono_defaults.int_class);
4714 pa [i] = ((MonoIntPtr*)arg)->m_value;
4719 g_error ("type 0x%x not handled in mono_runtime_invoke_array", sig->params [i]->type);
4724 if (!strcmp (method->name, ".ctor") && method->klass != mono_defaults.string_class) {
4727 if (mono_class_is_nullable (method->klass)) {
4728 /* Need to create a boxed vtype instead */
4734 MonoObject *result = mono_value_box_checked (mono_domain_get (), method->klass->cast_class, pa [0], &error);
4735 mono_error_raise_exception (&error); /* FIXME don't raise here */
4741 obj = mono_object_new_checked (mono_domain_get (), method->klass, &error);
4742 g_assert (obj && mono_error_ok (&error)); /*maybe we should raise a TLE instead?*/ /* FIXME don't swallow error */
4743 #ifndef DISABLE_REMOTING
4744 if (mono_object_class(obj) == mono_defaults.transparent_proxy_class) {
4745 method = mono_marshal_get_remoting_invoke (method->slot == -1 ? method : method->klass->vtable [method->slot]);
4748 if (method->klass->valuetype)
4749 o = (MonoObject *)mono_object_unbox ((MonoObject *)obj);
4752 } else if (method->klass->valuetype) {
4753 obj = mono_value_box_checked (mono_domain_get (), method->klass, obj, &error);
4754 mono_error_raise_exception (&error); /* FIXME don't raise here */
4758 mono_runtime_try_invoke (method, o, pa, exc, &error);
4759 if (*exc == NULL && !mono_error_ok (&error))
4760 *exc = (MonoObject*) mono_error_convert_to_exception (&error);
4762 mono_error_cleanup (&error);
4764 mono_runtime_invoke_checked (method, o, pa, &error);
4765 mono_error_raise_exception (&error); /* FIXME don't raise here */
4768 return (MonoObject *)obj;
4770 if (mono_class_is_nullable (method->klass)) {
4771 MonoObject *nullable;
4773 /* Convert the unboxed vtype into a Nullable structure */
4774 nullable = mono_object_new_checked (mono_domain_get (), method->klass, &error);
4775 mono_error_raise_exception (&error); /* FIXME don't raise here */
4777 MonoObject *boxed = mono_value_box_checked (mono_domain_get (), method->klass->cast_class, obj, &error);
4778 mono_error_raise_exception (&error); /* FIXME don't raise here */
4779 mono_nullable_init ((guint8 *)mono_object_unbox (nullable), boxed, method->klass);
4780 obj = mono_object_unbox (nullable);
4783 /* obj must be already unboxed if needed */
4785 res = mono_runtime_try_invoke (method, obj, pa, exc, &error);
4786 if (*exc == NULL && !mono_error_ok (&error))
4787 *exc = (MonoObject*) mono_error_convert_to_exception (&error);
4789 mono_error_cleanup (&error);
4791 res = mono_runtime_invoke_checked (method, obj, pa, &error);
4792 mono_error_raise_exception (&error); /* FIXME don't raise here */
4795 if (sig->ret->type == MONO_TYPE_PTR) {
4796 MonoClass *pointer_class;
4797 static MonoMethod *box_method;
4799 MonoObject *box_exc;
4802 * The runtime-invoke wrapper returns a boxed IntPtr, need to
4803 * convert it to a Pointer object.
4805 pointer_class = mono_class_get_pointer_class ();
4807 box_method = mono_class_get_method_from_name (pointer_class, "Box", -1);
4809 g_assert (res->vtable->klass == mono_defaults.int_class);
4810 box_args [0] = ((MonoIntPtr*)res)->m_value;
4811 box_args [1] = mono_type_get_object_checked (mono_domain_get (), sig->ret, &error);
4812 mono_error_raise_exception (&error); /* FIXME don't raise here */
4814 res = mono_runtime_try_invoke (box_method, NULL, box_args, &box_exc, &error);
4815 g_assert (box_exc == NULL);
4816 mono_error_assert_ok (&error);
4819 if (has_byref_nullables) {
4821 * The runtime invoke wrapper already converted byref nullables back,
4822 * and stored them in pa, we just need to copy them back to the
4825 for (i = 0; i < mono_array_length (params); i++) {
4826 MonoType *t = sig->params [i];
4828 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
4829 mono_array_setref (params, i, pa [i]);
4839 * @klass: the class of the object that we want to create
4841 * Returns: a newly created object whose definition is
4842 * looked up using @klass. This will not invoke any constructors,
4843 * so the consumer of this routine has to invoke any constructors on
4844 * its own to initialize the object.
4846 * It returns NULL on failure.
4849 mono_object_new (MonoDomain *domain, MonoClass *klass)
4851 MONO_REQ_GC_UNSAFE_MODE;
4855 MonoObject * result = mono_object_new_checked (domain, klass, &error);
4857 mono_error_cleanup (&error);
4862 ves_icall_object_new (MonoDomain *domain, MonoClass *klass)
4864 MONO_REQ_GC_UNSAFE_MODE;
4868 MonoObject * result = mono_object_new_checked (domain, klass, &error);
4870 mono_error_set_pending_exception (&error);
4875 * mono_object_new_checked:
4876 * @klass: the class of the object that we want to create
4877 * @error: set on error
4879 * Returns: a newly created object whose definition is
4880 * looked up using @klass. This will not invoke any constructors,
4881 * so the consumer of this routine has to invoke any constructors on
4882 * its own to initialize the object.
4884 * It returns NULL on failure and sets @error.
4887 mono_object_new_checked (MonoDomain *domain, MonoClass *klass, MonoError *error)
4889 MONO_REQ_GC_UNSAFE_MODE;
4893 vtable = mono_class_vtable (domain, klass);
4894 g_assert (vtable); /* FIXME don't swallow the error */
4896 MonoObject *o = mono_object_new_specific_checked (vtable, error);
4901 * mono_object_new_pinned:
4903 * Same as mono_object_new, but the returned object will be pinned.
4904 * For SGEN, these objects will only be freed at appdomain unload.
4907 mono_object_new_pinned (MonoDomain *domain, MonoClass *klass, MonoError *error)
4909 MONO_REQ_GC_UNSAFE_MODE;
4913 mono_error_init (error);
4915 vtable = mono_class_vtable (domain, klass);
4916 g_assert (vtable); /* FIXME don't swallow the error */
4918 MonoObject *o = (MonoObject *)mono_gc_alloc_pinned_obj (vtable, mono_class_instance_size (klass));
4920 if (G_UNLIKELY (!o))
4921 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", mono_class_instance_size (klass));
4922 else if (G_UNLIKELY (vtable->klass->has_finalize))
4923 mono_object_register_finalizer (o, error);
4929 * mono_object_new_specific:
4930 * @vtable: the vtable of the object that we want to create
4932 * Returns: A newly created object with class and domain specified
4936 mono_object_new_specific (MonoVTable *vtable)
4939 MonoObject *o = mono_object_new_specific_checked (vtable, &error);
4940 mono_error_cleanup (&error);
4946 mono_object_new_specific_checked (MonoVTable *vtable, MonoError *error)
4948 MONO_REQ_GC_UNSAFE_MODE;
4952 mono_error_init (error);
4954 /* check for is_com_object for COM Interop */
4955 if (mono_vtable_is_remote (vtable) || mono_class_is_com_object (vtable->klass))
4958 MonoMethod *im = vtable->domain->create_proxy_for_type_method;
4961 MonoClass *klass = mono_class_get_activation_services_class ();
4964 mono_class_init (klass);
4966 im = mono_class_get_method_from_name (klass, "CreateProxyForType", 1);
4968 mono_error_set_not_supported (error, "Linked away.");
4971 vtable->domain->create_proxy_for_type_method = im;
4974 pa [0] = mono_type_get_object_checked (mono_domain_get (), &vtable->klass->byval_arg, error);
4975 if (!mono_error_ok (error))
4978 o = mono_runtime_invoke_checked (im, NULL, pa, error);
4979 if (!mono_error_ok (error))
4986 return mono_object_new_alloc_specific_checked (vtable, error);
4990 ves_icall_object_new_specific (MonoVTable *vtable)
4993 MonoObject *o = mono_object_new_specific_checked (vtable, &error);
4994 mono_error_set_pending_exception (&error);
5000 * mono_object_new_alloc_specific:
5001 * @vtable: virtual table for the object.
5003 * This function allocates a new `MonoObject` with the type derived
5004 * from the @vtable information. If the class of this object has a
5005 * finalizer, then the object will be tracked for finalization.
5007 * This method might raise an exception on errors. Use the
5008 * `mono_object_new_fast_checked` method if you want to manually raise
5011 * Returns: the allocated object.
5014 mono_object_new_alloc_specific (MonoVTable *vtable)
5017 MonoObject *o = mono_object_new_alloc_specific_checked (vtable, &error);
5018 mono_error_cleanup (&error);
5024 * mono_object_new_alloc_specific_checked:
5025 * @vtable: virtual table for the object.
5026 * @error: holds the error return value.
5028 * This function allocates a new `MonoObject` with the type derived
5029 * from the @vtable information. If the class of this object has a
5030 * finalizer, then the object will be tracked for finalization.
5032 * If there is not enough memory, the @error parameter will be set
5033 * and will contain a user-visible message with the amount of bytes
5034 * that were requested.
5036 * Returns: the allocated object, or NULL if there is not enough memory
5040 mono_object_new_alloc_specific_checked (MonoVTable *vtable, MonoError *error)
5042 MONO_REQ_GC_UNSAFE_MODE;
5046 mono_error_init (error);
5048 o = (MonoObject *)mono_gc_alloc_obj (vtable, vtable->klass->instance_size);
5050 if (G_UNLIKELY (!o))
5051 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", vtable->klass->instance_size);
5052 else if (G_UNLIKELY (vtable->klass->has_finalize))
5053 mono_object_register_finalizer (o, error);
5059 * mono_object_new_fast:
5060 * @vtable: virtual table for the object.
5062 * This function allocates a new `MonoObject` with the type derived
5063 * from the @vtable information. The returned object is not tracked
5064 * for finalization. If your object implements a finalizer, you should
5065 * use `mono_object_new_alloc_specific` instead.
5067 * This method might raise an exception on errors. Use the
5068 * `mono_object_new_fast_checked` method if you want to manually raise
5071 * Returns: the allocated object.
5074 mono_object_new_fast (MonoVTable *vtable)
5077 MonoObject *o = mono_object_new_fast_checked (vtable, &error);
5078 mono_error_cleanup (&error);
5084 * mono_object_new_fast_checked:
5085 * @vtable: virtual table for the object.
5086 * @error: holds the error return value.
5088 * This function allocates a new `MonoObject` with the type derived
5089 * from the @vtable information. The returned object is not tracked
5090 * for finalization. If your object implements a finalizer, you should
5091 * use `mono_object_new_alloc_specific_checked` instead.
5093 * If there is not enough memory, the @error parameter will be set
5094 * and will contain a user-visible message with the amount of bytes
5095 * that were requested.
5097 * Returns: the allocated object, or NULL if there is not enough memory
5101 mono_object_new_fast_checked (MonoVTable *vtable, MonoError *error)
5103 MONO_REQ_GC_UNSAFE_MODE;
5107 mono_error_init (error);
5109 o = mono_gc_alloc_obj (vtable, vtable->klass->instance_size);
5111 if (G_UNLIKELY (!o))
5112 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", vtable->klass->instance_size);
5118 ves_icall_object_new_fast (MonoVTable *vtable)
5121 MonoObject *o = mono_object_new_fast_checked (vtable, &error);
5122 mono_error_set_pending_exception (&error);
5128 mono_object_new_mature (MonoVTable *vtable, MonoError *error)
5130 MONO_REQ_GC_UNSAFE_MODE;
5134 mono_error_init (error);
5136 o = mono_gc_alloc_mature (vtable, vtable->klass->instance_size);
5138 if (G_UNLIKELY (!o))
5139 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", vtable->klass->instance_size);
5140 else if (G_UNLIKELY (vtable->klass->has_finalize))
5141 mono_object_register_finalizer (o, error);
5147 * mono_class_get_allocation_ftn:
5149 * @for_box: the object will be used for boxing
5150 * @pass_size_in_words:
5152 * Return the allocation function appropriate for the given class.
5156 mono_class_get_allocation_ftn (MonoVTable *vtable, gboolean for_box, gboolean *pass_size_in_words)
5158 MONO_REQ_GC_NEUTRAL_MODE;
5160 *pass_size_in_words = FALSE;
5162 if (mono_class_has_finalizer (vtable->klass) || mono_class_is_marshalbyref (vtable->klass) || (mono_profiler_get_events () & MONO_PROFILE_ALLOCATIONS))
5163 return ves_icall_object_new_specific;
5165 if (vtable->gc_descr != MONO_GC_DESCRIPTOR_NULL) {
5167 return ves_icall_object_new_fast;
5170 * FIXME: This is actually slower than ves_icall_object_new_fast, because
5171 * of the overhead of parameter passing.
5174 *pass_size_in_words = TRUE;
5175 #ifdef GC_REDIRECT_TO_LOCAL
5176 return GC_local_gcj_fast_malloc;
5178 return GC_gcj_fast_malloc;
5183 return ves_icall_object_new_specific;
5187 * mono_object_new_from_token:
5188 * @image: Context where the type_token is hosted
5189 * @token: a token of the type that we want to create
5191 * Returns: A newly created object whose definition is
5192 * looked up using @token in the @image image
5195 mono_object_new_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
5197 MONO_REQ_GC_UNSAFE_MODE;
5203 klass = mono_class_get_checked (image, token, &error);
5204 mono_error_assert_ok (&error);
5206 result = mono_object_new_checked (domain, klass, &error);
5208 mono_error_cleanup (&error);
5215 * mono_object_clone:
5216 * @obj: the object to clone
5218 * Returns: A newly created object who is a shallow copy of @obj
5221 mono_object_clone (MonoObject *obj)
5224 MonoObject *o = mono_object_clone_checked (obj, &error);
5225 mono_error_cleanup (&error);
5231 mono_object_clone_checked (MonoObject *obj, MonoError *error)
5233 MONO_REQ_GC_UNSAFE_MODE;
5238 mono_error_init (error);
5240 size = obj->vtable->klass->instance_size;
5242 if (obj->vtable->klass->rank)
5243 return (MonoObject*)mono_array_clone_checked ((MonoArray*)obj, error);
5245 o = (MonoObject *)mono_gc_alloc_obj (obj->vtable, size);
5247 if (G_UNLIKELY (!o)) {
5248 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
5252 /* If the object doesn't contain references this will do a simple memmove. */
5253 mono_gc_wbarrier_object_copy (o, obj);
5255 if (obj->vtable->klass->has_finalize)
5256 mono_object_register_finalizer (o, error);
5261 * mono_array_full_copy:
5262 * @src: source array to copy
5263 * @dest: destination array
5265 * Copies the content of one array to another with exactly the same type and size.
5268 mono_array_full_copy (MonoArray *src, MonoArray *dest)
5270 MONO_REQ_GC_UNSAFE_MODE;
5273 MonoClass *klass = src->obj.vtable->klass;
5275 g_assert (klass == dest->obj.vtable->klass);
5277 size = mono_array_length (src);
5278 g_assert (size == mono_array_length (dest));
5279 size *= mono_array_element_size (klass);
5281 if (klass->element_class->valuetype) {
5282 if (klass->element_class->has_references)
5283 mono_value_copy_array (dest, 0, mono_array_addr_with_size_fast (src, 0, 0), mono_array_length (src));
5285 mono_gc_memmove_atomic (&dest->vector, &src->vector, size);
5287 mono_array_memcpy_refs (dest, 0, src, 0, mono_array_length (src));
5290 mono_gc_memmove_atomic (&dest->vector, &src->vector, size);
5295 * mono_array_clone_in_domain:
5296 * @domain: the domain in which the array will be cloned into
5297 * @array: the array to clone
5298 * @error: set on error
5300 * This routine returns a copy of the array that is hosted on the
5301 * specified MonoDomain. On failure returns NULL and sets @error.
5304 mono_array_clone_in_domain (MonoDomain *domain, MonoArray *array, MonoError *error)
5306 MONO_REQ_GC_UNSAFE_MODE;
5311 MonoClass *klass = array->obj.vtable->klass;
5313 mono_error_init (error);
5315 if (array->bounds == NULL) {
5316 size = mono_array_length (array);
5317 o = mono_array_new_full_checked (domain, klass, &size, NULL, error);
5318 return_val_if_nok (error, NULL);
5320 size *= mono_array_element_size (klass);
5322 if (klass->element_class->valuetype) {
5323 if (klass->element_class->has_references)
5324 mono_value_copy_array (o, 0, mono_array_addr_with_size_fast (array, 0, 0), mono_array_length (array));
5326 mono_gc_memmove_atomic (&o->vector, &array->vector, size);
5328 mono_array_memcpy_refs (o, 0, array, 0, mono_array_length (array));
5331 mono_gc_memmove_atomic (&o->vector, &array->vector, size);
5336 sizes = (uintptr_t *)alloca (klass->rank * sizeof(intptr_t) * 2);
5337 size = mono_array_element_size (klass);
5338 for (i = 0; i < klass->rank; ++i) {
5339 sizes [i] = array->bounds [i].length;
5340 size *= array->bounds [i].length;
5341 sizes [i + klass->rank] = array->bounds [i].lower_bound;
5343 o = mono_array_new_full_checked (domain, klass, sizes, (intptr_t*)sizes + klass->rank, error);
5344 return_val_if_nok (error, NULL);
5346 if (klass->element_class->valuetype) {
5347 if (klass->element_class->has_references)
5348 mono_value_copy_array (o, 0, mono_array_addr_with_size_fast (array, 0, 0), mono_array_length (array));
5350 mono_gc_memmove_atomic (&o->vector, &array->vector, size);
5352 mono_array_memcpy_refs (o, 0, array, 0, mono_array_length (array));
5355 mono_gc_memmove_atomic (&o->vector, &array->vector, size);
5363 * @array: the array to clone
5365 * Returns: A newly created array who is a shallow copy of @array
5368 mono_array_clone (MonoArray *array)
5370 MONO_REQ_GC_UNSAFE_MODE;
5373 MonoArray *result = mono_array_clone_checked (array, &error);
5374 mono_error_cleanup (&error);
5379 * mono_array_clone_checked:
5380 * @array: the array to clone
5381 * @error: set on error
5383 * Returns: A newly created array who is a shallow copy of @array. On
5384 * failure returns NULL and sets @error.
5387 mono_array_clone_checked (MonoArray *array, MonoError *error)
5390 MONO_REQ_GC_UNSAFE_MODE;
5391 return mono_array_clone_in_domain (((MonoObject *)array)->vtable->domain, array, error);
5394 /* helper macros to check for overflow when calculating the size of arrays */
5395 #ifdef MONO_BIG_ARRAYS
5396 #define MYGUINT64_MAX 0x0000FFFFFFFFFFFFUL
5397 #define MYGUINT_MAX MYGUINT64_MAX
5398 #define CHECK_ADD_OVERFLOW_UN(a,b) \
5399 (G_UNLIKELY ((guint64)(MYGUINT64_MAX) - (guint64)(b) < (guint64)(a)))
5400 #define CHECK_MUL_OVERFLOW_UN(a,b) \
5401 (G_UNLIKELY (((guint64)(a) > 0) && ((guint64)(b) > 0) && \
5402 ((guint64)(b) > ((MYGUINT64_MAX) / (guint64)(a)))))
5404 #define MYGUINT32_MAX 4294967295U
5405 #define MYGUINT_MAX MYGUINT32_MAX
5406 #define CHECK_ADD_OVERFLOW_UN(a,b) \
5407 (G_UNLIKELY ((guint32)(MYGUINT32_MAX) - (guint32)(b) < (guint32)(a)))
5408 #define CHECK_MUL_OVERFLOW_UN(a,b) \
5409 (G_UNLIKELY (((guint32)(a) > 0) && ((guint32)(b) > 0) && \
5410 ((guint32)(b) > ((MYGUINT32_MAX) / (guint32)(a)))))
5414 mono_array_calc_byte_len (MonoClass *klass, uintptr_t len, uintptr_t *res)
5416 MONO_REQ_GC_NEUTRAL_MODE;
5420 byte_len = mono_array_element_size (klass);
5421 if (CHECK_MUL_OVERFLOW_UN (byte_len, len))
5424 if (CHECK_ADD_OVERFLOW_UN (byte_len, MONO_SIZEOF_MONO_ARRAY))
5426 byte_len += MONO_SIZEOF_MONO_ARRAY;
5434 * mono_array_new_full:
5435 * @domain: domain where the object is created
5436 * @array_class: array class
5437 * @lengths: lengths for each dimension in the array
5438 * @lower_bounds: lower bounds for each dimension in the array (may be NULL)
5440 * This routine creates a new array objects with the given dimensions,
5441 * lower bounds and type.
5444 mono_array_new_full (MonoDomain *domain, MonoClass *array_class, uintptr_t *lengths, intptr_t *lower_bounds)
5447 MonoArray *array = mono_array_new_full_checked (domain, array_class, lengths, lower_bounds, &error);
5448 mono_error_cleanup (&error);
5454 mono_array_new_full_checked (MonoDomain *domain, MonoClass *array_class, uintptr_t *lengths, intptr_t *lower_bounds, MonoError *error)
5456 MONO_REQ_GC_UNSAFE_MODE;
5458 uintptr_t byte_len = 0, len, bounds_size;
5461 MonoArrayBounds *bounds;
5465 mono_error_init (error);
5467 if (!array_class->inited)
5468 mono_class_init (array_class);
5472 /* A single dimensional array with a 0 lower bound is the same as an szarray */
5473 if (array_class->rank == 1 && ((array_class->byval_arg.type == MONO_TYPE_SZARRAY) || (lower_bounds && lower_bounds [0] == 0))) {
5475 if (len > MONO_ARRAY_MAX_INDEX) {
5476 mono_error_set_generic_error (error, "System", "OverflowException", "");
5481 bounds_size = sizeof (MonoArrayBounds) * array_class->rank;
5483 for (i = 0; i < array_class->rank; ++i) {
5484 if (lengths [i] > MONO_ARRAY_MAX_INDEX) {
5485 mono_error_set_generic_error (error, "System", "OverflowException", "");
5488 if (CHECK_MUL_OVERFLOW_UN (len, lengths [i])) {
5489 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", MONO_ARRAY_MAX_SIZE);
5496 if (!mono_array_calc_byte_len (array_class, len, &byte_len)) {
5497 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", MONO_ARRAY_MAX_SIZE);
5503 if (CHECK_ADD_OVERFLOW_UN (byte_len, 3)) {
5504 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", MONO_ARRAY_MAX_SIZE);
5507 byte_len = (byte_len + 3) & ~3;
5508 if (CHECK_ADD_OVERFLOW_UN (byte_len, bounds_size)) {
5509 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", MONO_ARRAY_MAX_SIZE);
5512 byte_len += bounds_size;
5515 * Following three lines almost taken from mono_object_new ():
5516 * they need to be kept in sync.
5518 vtable = mono_class_vtable_full (domain, array_class, error);
5519 return_val_if_nok (error, NULL);
5522 o = (MonoObject *)mono_gc_alloc_array (vtable, byte_len, len, bounds_size);
5524 o = (MonoObject *)mono_gc_alloc_vector (vtable, byte_len, len);
5526 if (G_UNLIKELY (!o)) {
5527 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", byte_len);
5531 array = (MonoArray*)o;
5533 bounds = array->bounds;
5536 for (i = 0; i < array_class->rank; ++i) {
5537 bounds [i].length = lengths [i];
5539 bounds [i].lower_bound = lower_bounds [i];
5548 * @domain: domain where the object is created
5549 * @eclass: element class
5550 * @n: number of array elements
5552 * This routine creates a new szarray with @n elements of type @eclass.
5555 mono_array_new (MonoDomain *domain, MonoClass *eclass, uintptr_t n)
5557 MONO_REQ_GC_UNSAFE_MODE;
5560 MonoArray *result = mono_array_new_checked (domain, eclass, n, &error);
5561 mono_error_cleanup (&error);
5566 * mono_array_new_checked:
5567 * @domain: domain where the object is created
5568 * @eclass: element class
5569 * @n: number of array elements
5570 * @error: set on error
5572 * This routine creates a new szarray with @n elements of type @eclass.
5573 * On failure returns NULL and sets @error.
5576 mono_array_new_checked (MonoDomain *domain, MonoClass *eclass, uintptr_t n, MonoError *error)
5580 mono_error_init (error);
5582 ac = mono_array_class_get (eclass, 1);
5585 MonoVTable *vtable = mono_class_vtable_full (domain, ac, error);
5586 return_val_if_nok (error, NULL);
5588 return mono_array_new_specific_checked (vtable, n, error);
5592 ves_icall_array_new (MonoDomain *domain, MonoClass *eclass, uintptr_t n)
5595 MonoArray *arr = mono_array_new_checked (domain, eclass, n, &error);
5596 mono_error_set_pending_exception (&error);
5602 * mono_array_new_specific:
5603 * @vtable: a vtable in the appropriate domain for an initialized class
5604 * @n: number of array elements
5606 * This routine is a fast alternative to mono_array_new() for code which
5607 * can be sure about the domain it operates in.
5610 mono_array_new_specific (MonoVTable *vtable, uintptr_t n)
5613 MonoArray *arr = mono_array_new_specific_checked (vtable, n, &error);
5614 mono_error_cleanup (&error);
5620 mono_array_new_specific_checked (MonoVTable *vtable, uintptr_t n, MonoError *error)
5622 MONO_REQ_GC_UNSAFE_MODE;
5627 mono_error_init (error);
5629 if (G_UNLIKELY (n > MONO_ARRAY_MAX_INDEX)) {
5630 mono_error_set_generic_error (error, "System", "OverflowException", "");
5634 if (!mono_array_calc_byte_len (vtable->klass, n, &byte_len)) {
5635 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", MONO_ARRAY_MAX_SIZE);
5638 o = (MonoObject *)mono_gc_alloc_vector (vtable, byte_len, n);
5640 if (G_UNLIKELY (!o)) {
5641 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", byte_len);
5645 return (MonoArray*)o;
5649 ves_icall_array_new_specific (MonoVTable *vtable, uintptr_t n)
5652 MonoArray *arr = mono_array_new_specific_checked (vtable, n, &error);
5653 mono_error_set_pending_exception (&error);
5659 * mono_string_new_utf16:
5660 * @text: a pointer to an utf16 string
5661 * @len: the length of the string
5663 * Returns: A newly created string object which contains @text.
5666 mono_string_new_utf16 (MonoDomain *domain, const guint16 *text, gint32 len)
5668 MONO_REQ_GC_UNSAFE_MODE;
5671 MonoString *res = NULL;
5672 res = mono_string_new_utf16_checked (domain, text, len, &error);
5673 mono_error_cleanup (&error);
5679 * mono_string_new_utf16_checked:
5680 * @text: a pointer to an utf16 string
5681 * @len: the length of the string
5682 * @error: written on error.
5684 * Returns: A newly created string object which contains @text.
5685 * On error, returns NULL and sets @error.
5688 mono_string_new_utf16_checked (MonoDomain *domain, const guint16 *text, gint32 len, MonoError *error)
5690 MONO_REQ_GC_UNSAFE_MODE;
5694 mono_error_init (error);
5696 s = mono_string_new_size_checked (domain, len, error);
5698 memcpy (mono_string_chars (s), text, len * 2);
5704 * mono_string_new_utf32:
5705 * @text: a pointer to an utf32 string
5706 * @len: the length of the string
5707 * @error: set on failure.
5709 * Returns: A newly created string object which contains @text. On failure returns NULL and sets @error.
5712 mono_string_new_utf32_checked (MonoDomain *domain, const mono_unichar4 *text, gint32 len, MonoError *error)
5714 MONO_REQ_GC_UNSAFE_MODE;
5717 mono_unichar2 *utf16_output = NULL;
5718 gint32 utf16_len = 0;
5719 GError *gerror = NULL;
5720 glong items_written;
5722 mono_error_init (error);
5723 utf16_output = g_ucs4_to_utf16 (text, len, NULL, &items_written, &gerror);
5726 g_error_free (gerror);
5728 while (utf16_output [utf16_len]) utf16_len++;
5730 s = mono_string_new_size_checked (domain, utf16_len, error);
5731 return_val_if_nok (error, NULL);
5733 memcpy (mono_string_chars (s), utf16_output, utf16_len * 2);
5735 g_free (utf16_output);
5741 * mono_string_new_utf32:
5742 * @text: a pointer to an utf32 string
5743 * @len: the length of the string
5745 * Returns: A newly created string object which contains @text.
5748 mono_string_new_utf32 (MonoDomain *domain, const mono_unichar4 *text, gint32 len)
5751 MonoString *result = mono_string_new_utf32_checked (domain, text, len, &error);
5752 mono_error_cleanup (&error);
5757 * mono_string_new_size:
5758 * @text: a pointer to an utf16 string
5759 * @len: the length of the string
5761 * Returns: A newly created string object of @len
5764 mono_string_new_size (MonoDomain *domain, gint32 len)
5767 MonoString *str = mono_string_new_size_checked (domain, len, &error);
5768 mono_error_cleanup (&error);
5774 mono_string_new_size_checked (MonoDomain *domain, gint32 len, MonoError *error)
5776 MONO_REQ_GC_UNSAFE_MODE;
5782 mono_error_init (error);
5784 /* check for overflow */
5785 if (len < 0 || len > ((SIZE_MAX - G_STRUCT_OFFSET (MonoString, chars) - 8) / 2)) {
5786 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", -1);
5790 size = (G_STRUCT_OFFSET (MonoString, chars) + (((size_t)len + 1) * 2));
5791 g_assert (size > 0);
5793 vtable = mono_class_vtable (domain, mono_defaults.string_class);
5796 s = (MonoString *)mono_gc_alloc_string (vtable, size, len);
5798 if (G_UNLIKELY (!s)) {
5799 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
5807 * mono_string_new_len:
5808 * @text: a pointer to an utf8 string
5809 * @length: number of bytes in @text to consider
5811 * Returns: A newly created string object which contains @text.
5814 mono_string_new_len (MonoDomain *domain, const char *text, guint length)
5816 MONO_REQ_GC_UNSAFE_MODE;
5819 MonoString *result = mono_string_new_len_checked (domain, text, length, &error);
5820 mono_error_cleanup (&error);
5825 * mono_string_new_len_checked:
5826 * @text: a pointer to an utf8 string
5827 * @length: number of bytes in @text to consider
5828 * @error: set on error
5830 * Returns: A newly created string object which contains @text. On
5831 * failure returns NULL and sets @error.
5834 mono_string_new_len_checked (MonoDomain *domain, const char *text, guint length, MonoError *error)
5836 MONO_REQ_GC_UNSAFE_MODE;
5838 mono_error_init (error);
5840 GError *eg_error = NULL;
5841 MonoString *o = NULL;
5843 glong items_written;
5845 ut = eg_utf8_to_utf16_with_nuls (text, length, NULL, &items_written, &eg_error);
5848 o = mono_string_new_utf16_checked (domain, ut, items_written, error);
5850 g_error_free (eg_error);
5859 * @text: a pointer to an utf8 string
5861 * Returns: A newly created string object which contains @text.
5863 * This function asserts if it cannot allocate a new string.
5865 * @deprecated Use mono_string_new_checked in new code.
5868 mono_string_new (MonoDomain *domain, const char *text)
5871 MonoString *res = NULL;
5872 res = mono_string_new_checked (domain, text, &error);
5873 mono_error_assert_ok (&error);
5878 * mono_string_new_checked:
5879 * @text: a pointer to an utf8 string
5880 * @merror: set on error
5882 * Returns: A newly created string object which contains @text.
5883 * On error returns NULL and sets @merror.
5886 mono_string_new_checked (MonoDomain *domain, const char *text, MonoError *error)
5888 MONO_REQ_GC_UNSAFE_MODE;
5890 GError *eg_error = NULL;
5891 MonoString *o = NULL;
5893 glong items_written;
5896 mono_error_init (error);
5900 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &eg_error);
5903 o = mono_string_new_utf16_checked (domain, ut, items_written, error);
5905 g_error_free (eg_error);
5909 /*FIXME g_utf8_get_char, g_utf8_next_char and g_utf8_validate are not part of eglib.*/
5914 MonoString *o = NULL;
5916 if (!g_utf8_validate (text, -1, &end)) {
5917 mono_error_set_argument (error, "text", "Not a valid utf8 string");
5921 len = g_utf8_strlen (text, -1);
5922 o = mono_string_new_size_checked (domain, len, error);
5925 str = mono_string_chars (o);
5927 while (text < end) {
5928 *str++ = g_utf8_get_char (text);
5929 text = g_utf8_next_char (text);
5938 * mono_string_new_wrapper:
5939 * @text: pointer to utf8 characters.
5941 * Helper function to create a string object from @text in the current domain.
5944 mono_string_new_wrapper (const char *text)
5946 MONO_REQ_GC_UNSAFE_MODE;
5948 MonoDomain *domain = mono_domain_get ();
5951 return mono_string_new (domain, text);
5958 * @class: the class of the value
5959 * @value: a pointer to the unboxed data
5961 * Returns: A newly created object which contains @value.
5964 mono_value_box (MonoDomain *domain, MonoClass *klass, gpointer value)
5967 MonoObject *result = mono_value_box_checked (domain, klass, value, &error);
5968 mono_error_cleanup (&error);
5973 * mono_value_box_checked:
5974 * @domain: the domain of the new object
5975 * @class: the class of the value
5976 * @value: a pointer to the unboxed data
5977 * @error: set on error
5979 * Returns: A newly created object which contains @value. On failure
5980 * returns NULL and sets @error.
5983 mono_value_box_checked (MonoDomain *domain, MonoClass *klass, gpointer value, MonoError *error)
5985 MONO_REQ_GC_UNSAFE_MODE;
5990 mono_error_init (error);
5992 g_assert (klass->valuetype);
5993 if (mono_class_is_nullable (klass))
5994 return mono_nullable_box ((guint8 *)value, klass, error);
5996 vtable = mono_class_vtable (domain, klass);
5999 size = mono_class_instance_size (klass);
6000 res = mono_object_new_alloc_specific_checked (vtable, error);
6001 return_val_if_nok (error, NULL);
6003 size = size - sizeof (MonoObject);
6006 g_assert (size == mono_class_value_size (klass, NULL));
6007 mono_gc_wbarrier_value_copy ((char *)res + sizeof (MonoObject), value, 1, klass);
6009 #if NO_UNALIGNED_ACCESS
6010 mono_gc_memmove_atomic ((char *)res + sizeof (MonoObject), value, size);
6014 *((guint8 *) res + sizeof (MonoObject)) = *(guint8 *) value;
6017 *(guint16 *)((guint8 *) res + sizeof (MonoObject)) = *(guint16 *) value;
6020 *(guint32 *)((guint8 *) res + sizeof (MonoObject)) = *(guint32 *) value;
6023 *(guint64 *)((guint8 *) res + sizeof (MonoObject)) = *(guint64 *) value;
6026 mono_gc_memmove_atomic ((char *)res + sizeof (MonoObject), value, size);
6030 if (klass->has_finalize) {
6031 mono_object_register_finalizer (res, error);
6032 return_val_if_nok (error, NULL);
6039 * @dest: destination pointer
6040 * @src: source pointer
6041 * @klass: a valuetype class
6043 * Copy a valuetype from @src to @dest. This function must be used
6044 * when @klass contains references fields.
6047 mono_value_copy (gpointer dest, gpointer src, MonoClass *klass)
6049 MONO_REQ_GC_UNSAFE_MODE;
6051 mono_gc_wbarrier_value_copy (dest, src, 1, klass);
6055 * mono_value_copy_array:
6056 * @dest: destination array
6057 * @dest_idx: index in the @dest array
6058 * @src: source pointer
6059 * @count: number of items
6061 * Copy @count valuetype items from @src to the array @dest at index @dest_idx.
6062 * This function must be used when @klass contains references fields.
6063 * Overlap is handled.
6066 mono_value_copy_array (MonoArray *dest, int dest_idx, gpointer src, int count)
6068 MONO_REQ_GC_UNSAFE_MODE;
6070 int size = mono_array_element_size (dest->obj.vtable->klass);
6071 char *d = mono_array_addr_with_size_fast (dest, size, dest_idx);
6072 g_assert (size == mono_class_value_size (mono_object_class (dest)->element_class, NULL));
6073 mono_gc_wbarrier_value_copy (d, src, count, mono_object_class (dest)->element_class);
6077 * mono_object_get_domain:
6078 * @obj: object to query
6080 * Returns: the MonoDomain where the object is hosted
6083 mono_object_get_domain (MonoObject *obj)
6085 MONO_REQ_GC_UNSAFE_MODE;
6087 return mono_object_domain (obj);
6091 * mono_object_get_class:
6092 * @obj: object to query
6094 * Use this function to obtain the `MonoClass*` for a given `MonoObject`.
6096 * Returns: the MonoClass of the object.
6099 mono_object_get_class (MonoObject *obj)
6101 MONO_REQ_GC_UNSAFE_MODE;
6103 return mono_object_class (obj);
6106 * mono_object_get_size:
6107 * @o: object to query
6109 * Returns: the size, in bytes, of @o
6112 mono_object_get_size (MonoObject* o)
6114 MONO_REQ_GC_UNSAFE_MODE;
6116 MonoClass* klass = mono_object_class (o);
6117 if (klass == mono_defaults.string_class) {
6118 return sizeof (MonoString) + 2 * mono_string_length ((MonoString*) o) + 2;
6119 } else if (o->vtable->rank) {
6120 MonoArray *array = (MonoArray*)o;
6121 size_t size = MONO_SIZEOF_MONO_ARRAY + mono_array_element_size (klass) * mono_array_length (array);
6122 if (array->bounds) {
6125 size += sizeof (MonoArrayBounds) * o->vtable->rank;
6129 return mono_class_instance_size (klass);
6134 * mono_object_unbox:
6135 * @obj: object to unbox
6137 * Returns: a pointer to the start of the valuetype boxed in this
6140 * This method will assert if the object passed is not a valuetype.
6143 mono_object_unbox (MonoObject *obj)
6145 MONO_REQ_GC_UNSAFE_MODE;
6147 /* add assert for valuetypes? */
6148 g_assert (obj->vtable->klass->valuetype);
6149 return ((char*)obj) + sizeof (MonoObject);
6153 * mono_object_isinst:
6155 * @klass: a pointer to a class
6157 * Returns: @obj if @obj is derived from @klass or NULL otherwise.
6160 mono_object_isinst (MonoObject *obj, MonoClass *klass)
6162 MONO_REQ_GC_UNSAFE_MODE;
6165 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
6166 mono_error_cleanup (&error);
6172 * mono_object_isinst_checked:
6174 * @klass: a pointer to a class
6175 * @error: set on error
6177 * Returns: @obj if @obj is derived from @klass or NULL if it isn't.
6178 * On failure returns NULL and sets @error.
6181 mono_object_isinst_checked (MonoObject *obj, MonoClass *klass, MonoError *error)
6183 MONO_REQ_GC_UNSAFE_MODE;
6185 mono_error_init (error);
6187 MonoObject *result = NULL;
6190 mono_class_init (klass);
6192 if (mono_class_is_marshalbyref (klass) || (klass->flags & TYPE_ATTRIBUTE_INTERFACE)) {
6193 result = mono_object_isinst_mbyref_checked (obj, klass, error);
6200 return mono_class_is_assignable_from (klass, obj->vtable->klass) ? obj : NULL;
6204 mono_object_isinst_mbyref (MonoObject *obj, MonoClass *klass)
6206 MONO_REQ_GC_UNSAFE_MODE;
6209 MonoObject *result = mono_object_isinst_mbyref_checked (obj, klass, &error);
6210 mono_error_cleanup (&error); /* FIXME better API that doesn't swallow the error */
6215 mono_object_isinst_mbyref_checked (MonoObject *obj, MonoClass *klass, MonoError *error)
6217 MONO_REQ_GC_UNSAFE_MODE;
6221 mono_error_init (error);
6228 if (klass->flags & TYPE_ATTRIBUTE_INTERFACE) {
6229 if (MONO_VTABLE_IMPLEMENTS_INTERFACE (vt, klass->interface_id)) {
6233 /*If the above check fails we are in the slow path of possibly raising an exception. So it's ok to it this way.*/
6234 if (mono_class_has_variant_generic_params (klass) && mono_class_is_assignable_from (klass, obj->vtable->klass))
6237 MonoClass *oklass = vt->klass;
6238 if (mono_class_is_transparent_proxy (oklass))
6239 oklass = ((MonoTransparentProxy *)obj)->remote_class->proxy_class;
6241 mono_class_setup_supertypes (klass);
6242 if ((oklass->idepth >= klass->idepth) && (oklass->supertypes [klass->idepth - 1] == klass))
6245 #ifndef DISABLE_REMOTING
6246 if (vt->klass == mono_defaults.transparent_proxy_class && ((MonoTransparentProxy *)obj)->custom_type_info)
6248 MonoDomain *domain = mono_domain_get ();
6250 MonoObject *rp = (MonoObject *)((MonoTransparentProxy *)obj)->rp;
6251 MonoClass *rpklass = mono_defaults.iremotingtypeinfo_class;
6252 MonoMethod *im = NULL;
6255 im = mono_class_get_method_from_name (rpklass, "CanCastTo", -1);
6257 mono_error_set_not_supported (error, "Linked away.");
6260 im = mono_object_get_virtual_method (rp, im);
6263 pa [0] = mono_type_get_object_checked (domain, &klass->byval_arg, error);
6264 return_val_if_nok (error, NULL);
6267 res = mono_runtime_invoke_checked (im, rp, pa, error);
6268 return_val_if_nok (error, NULL);
6270 if (*(MonoBoolean *) mono_object_unbox(res)) {
6271 /* Update the vtable of the remote type, so it can safely cast to this new type */
6272 mono_upgrade_remote_class (domain, obj, klass);
6276 #endif /* DISABLE_REMOTING */
6281 * mono_object_castclass_mbyref:
6283 * @klass: a pointer to a class
6285 * Returns: @obj if @obj is derived from @klass, returns NULL otherwise.
6288 mono_object_castclass_mbyref (MonoObject *obj, MonoClass *klass)
6290 MONO_REQ_GC_UNSAFE_MODE;
6293 if (!obj) return NULL;
6294 if (mono_object_isinst_mbyref_checked (obj, klass, &error)) return obj;
6295 mono_error_cleanup (&error);
6300 MonoDomain *orig_domain;
6306 str_lookup (MonoDomain *domain, gpointer user_data)
6308 MONO_REQ_GC_UNSAFE_MODE;
6310 LDStrInfo *info = (LDStrInfo *)user_data;
6311 if (info->res || domain == info->orig_domain)
6313 info->res = (MonoString *)mono_g_hash_table_lookup (domain->ldstr_table, info->ins);
6317 mono_string_get_pinned (MonoString *str, MonoError *error)
6319 MONO_REQ_GC_UNSAFE_MODE;
6321 mono_error_init (error);
6323 /* We only need to make a pinned version of a string if this is a moving GC */
6324 if (!mono_gc_is_moving ())
6328 size = sizeof (MonoString) + 2 * (mono_string_length (str) + 1);
6329 news = (MonoString *)mono_gc_alloc_pinned_obj (((MonoObject*)str)->vtable, size);
6331 memcpy (mono_string_chars (news), mono_string_chars (str), mono_string_length (str) * 2);
6332 news->length = mono_string_length (str);
6334 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
6340 mono_string_is_interned_lookup (MonoString *str, int insert, MonoError *error)
6342 MONO_REQ_GC_UNSAFE_MODE;
6344 MonoGHashTable *ldstr_table;
6345 MonoString *s, *res;
6348 mono_error_init (error);
6350 domain = ((MonoObject *)str)->vtable->domain;
6351 ldstr_table = domain->ldstr_table;
6353 res = (MonoString *)mono_g_hash_table_lookup (ldstr_table, str);
6359 /* Allocate outside the lock */
6361 s = mono_string_get_pinned (str, error);
6362 return_val_if_nok (error, NULL);
6365 res = (MonoString *)mono_g_hash_table_lookup (ldstr_table, str);
6370 mono_g_hash_table_insert (ldstr_table, s, s);
6375 LDStrInfo ldstr_info;
6376 ldstr_info.orig_domain = domain;
6377 ldstr_info.ins = str;
6378 ldstr_info.res = NULL;
6380 mono_domain_foreach (str_lookup, &ldstr_info);
6381 if (ldstr_info.res) {
6383 * the string was already interned in some other domain:
6384 * intern it in the current one as well.
6386 mono_g_hash_table_insert (ldstr_table, str, str);
6396 * mono_string_is_interned:
6397 * @o: String to probe
6399 * Returns whether the string has been interned.
6402 mono_string_is_interned (MonoString *o)
6405 MonoString *result = mono_string_is_interned_lookup (o, FALSE, &error);
6406 /* This function does not fail. */
6407 mono_error_assert_ok (&error);
6412 * mono_string_intern:
6413 * @o: String to intern
6415 * Interns the string passed.
6416 * Returns: The interned string.
6419 mono_string_intern (MonoString *str)
6422 MonoString *result = mono_string_intern_checked (str, &error);
6423 mono_error_assert_ok (&error);
6428 * mono_string_intern_checked:
6429 * @o: String to intern
6430 * @error: set on error.
6432 * Interns the string passed.
6433 * Returns: The interned string. On failure returns NULL and sets @error
6436 mono_string_intern_checked (MonoString *str, MonoError *error)
6438 MONO_REQ_GC_UNSAFE_MODE;
6440 mono_error_init (error);
6442 return mono_string_is_interned_lookup (str, TRUE, error);
6447 * @domain: the domain where the string will be used.
6448 * @image: a metadata context
6449 * @idx: index into the user string table.
6451 * Implementation for the ldstr opcode.
6452 * Returns: a loaded string from the @image/@idx combination.
6455 mono_ldstr (MonoDomain *domain, MonoImage *image, guint32 idx)
6457 MONO_REQ_GC_UNSAFE_MODE;
6460 if (image->dynamic) {
6461 MonoString *str = (MonoString *)mono_lookup_dynamic_token (image, MONO_TOKEN_STRING | idx, NULL, &error);
6462 mono_error_raise_exception (&error); /* FIXME don't raise here */
6465 if (!mono_verifier_verify_string_signature (image, idx, NULL))
6466 return NULL; /*FIXME we should probably be raising an exception here*/
6467 return mono_ldstr_metadata_sig (domain, mono_metadata_user_string (image, idx));
6472 * mono_ldstr_metadata_sig
6473 * @domain: the domain for the string
6474 * @sig: the signature of a metadata string
6476 * Returns: a MonoString for a string stored in the metadata
6479 mono_ldstr_metadata_sig (MonoDomain *domain, const char* sig)
6481 MONO_REQ_GC_UNSAFE_MODE;
6484 const char *str = sig;
6485 MonoString *o, *interned;
6488 len2 = mono_metadata_decode_blob_size (str, &str);
6491 o = mono_string_new_utf16_checked (domain, (guint16*)str, len2, &error);
6492 mono_error_raise_exception (&error); /* FIXME don't raise here */
6493 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
6496 guint16 *p2 = (guint16*)mono_string_chars (o);
6497 for (i = 0; i < len2; ++i) {
6498 *p2 = GUINT16_FROM_LE (*p2);
6504 interned = (MonoString *)mono_g_hash_table_lookup (domain->ldstr_table, o);
6507 return interned; /* o will get garbage collected */
6509 o = mono_string_get_pinned (o, &error);
6510 mono_error_raise_exception (&error); /* FIXME don't raise here */
6513 interned = (MonoString *)mono_g_hash_table_lookup (domain->ldstr_table, o);
6515 mono_g_hash_table_insert (domain->ldstr_table, o, o);
6525 * mono_string_to_utf8:
6526 * @s: a System.String
6528 * Returns the UTF8 representation for @s.
6529 * The resulting buffer needs to be freed with mono_free().
6531 * @deprecated Use mono_string_to_utf8_checked to avoid having an exception arbritraly raised.
6534 mono_string_to_utf8 (MonoString *s)
6536 MONO_REQ_GC_UNSAFE_MODE;
6539 char *result = mono_string_to_utf8_checked (s, &error);
6541 if (!mono_error_ok (&error))
6542 mono_error_raise_exception (&error);
6547 * mono_string_to_utf8_checked:
6548 * @s: a System.String
6549 * @error: a MonoError.
6551 * Converts a MonoString to its UTF8 representation. May fail; check
6552 * @error to determine whether the conversion was successful.
6553 * The resulting buffer should be freed with mono_free().
6556 mono_string_to_utf8_checked (MonoString *s, MonoError *error)
6558 MONO_REQ_GC_UNSAFE_MODE;
6562 GError *gerror = NULL;
6564 mono_error_init (error);
6570 return g_strdup ("");
6572 as = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &written, &gerror);
6574 mono_error_set_argument (error, "string", "%s", gerror->message);
6575 g_error_free (gerror);
6578 /* g_utf16_to_utf8 may not be able to complete the convertion (e.g. NULL values were found, #335488) */
6579 if (s->length > written) {
6580 /* allocate the total length and copy the part of the string that has been converted */
6581 char *as2 = (char *)g_malloc0 (s->length);
6582 memcpy (as2, as, written);
6591 * mono_string_to_utf8_ignore:
6594 * Converts a MonoString to its UTF8 representation. Will ignore
6595 * invalid surrogate pairs.
6596 * The resulting buffer should be freed with mono_free().
6600 mono_string_to_utf8_ignore (MonoString *s)
6602 MONO_REQ_GC_UNSAFE_MODE;
6611 return g_strdup ("");
6613 as = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &written, NULL);
6615 /* g_utf16_to_utf8 may not be able to complete the convertion (e.g. NULL values were found, #335488) */
6616 if (s->length > written) {
6617 /* allocate the total length and copy the part of the string that has been converted */
6618 char *as2 = (char *)g_malloc0 (s->length);
6619 memcpy (as2, as, written);
6628 * mono_string_to_utf8_image_ignore:
6629 * @s: a System.String
6631 * Same as mono_string_to_utf8_ignore, but allocate the string from the image mempool.
6634 mono_string_to_utf8_image_ignore (MonoImage *image, MonoString *s)
6636 MONO_REQ_GC_UNSAFE_MODE;
6638 return mono_string_to_utf8_internal (NULL, image, s, TRUE, NULL);
6642 * mono_string_to_utf8_mp_ignore:
6643 * @s: a System.String
6645 * Same as mono_string_to_utf8_ignore, but allocate the string from a mempool.
6648 mono_string_to_utf8_mp_ignore (MonoMemPool *mp, MonoString *s)
6650 MONO_REQ_GC_UNSAFE_MODE;
6652 return mono_string_to_utf8_internal (mp, NULL, s, TRUE, NULL);
6657 * mono_string_to_utf16:
6660 * Return an null-terminated array of the utf-16 chars
6661 * contained in @s. The result must be freed with g_free().
6662 * This is a temporary helper until our string implementation
6663 * is reworked to always include the null terminating char.
6666 mono_string_to_utf16 (MonoString *s)
6668 MONO_REQ_GC_UNSAFE_MODE;
6675 as = (char *)g_malloc ((s->length * 2) + 2);
6676 as [(s->length * 2)] = '\0';
6677 as [(s->length * 2) + 1] = '\0';
6680 return (gunichar2 *)(as);
6683 memcpy (as, mono_string_chars(s), s->length * 2);
6684 return (gunichar2 *)(as);
6688 * mono_string_to_utf32:
6691 * Return an null-terminated array of the UTF-32 (UCS-4) chars
6692 * contained in @s. The result must be freed with g_free().
6695 mono_string_to_utf32 (MonoString *s)
6697 MONO_REQ_GC_UNSAFE_MODE;
6699 mono_unichar4 *utf32_output = NULL;
6700 GError *error = NULL;
6701 glong items_written;
6706 utf32_output = g_utf16_to_ucs4 (s->chars, s->length, NULL, &items_written, &error);
6709 g_error_free (error);
6711 return utf32_output;
6715 * mono_string_from_utf16:
6716 * @data: the UTF16 string (LPWSTR) to convert
6718 * Converts a NULL terminated UTF16 string (LPWSTR) to a MonoString.
6720 * Returns: a MonoString.
6723 mono_string_from_utf16 (gunichar2 *data)
6725 MONO_REQ_GC_UNSAFE_MODE;
6728 MonoString *res = NULL;
6729 MonoDomain *domain = mono_domain_get ();
6735 while (data [len]) len++;
6737 res = mono_string_new_utf16_checked (domain, data, len, &error);
6738 mono_error_raise_exception (&error); /* FIXME don't raise here */
6743 * mono_string_from_utf32:
6744 * @data: the UTF32 string (LPWSTR) to convert
6746 * Converts a UTF32 (UCS-4)to a MonoString.
6748 * Returns: a MonoString.
6751 mono_string_from_utf32 (mono_unichar4 *data)
6753 MONO_REQ_GC_UNSAFE_MODE;
6755 MonoString* result = NULL;
6756 mono_unichar2 *utf16_output = NULL;
6757 GError *error = NULL;
6758 glong items_written;
6764 while (data [len]) len++;
6766 utf16_output = g_ucs4_to_utf16 (data, len, NULL, &items_written, &error);
6769 g_error_free (error);
6771 result = mono_string_from_utf16 (utf16_output);
6772 g_free (utf16_output);
6777 mono_string_to_utf8_internal (MonoMemPool *mp, MonoImage *image, MonoString *s, gboolean ignore_error, MonoError *error)
6779 MONO_REQ_GC_UNSAFE_MODE;
6786 r = mono_string_to_utf8_ignore (s);
6788 r = mono_string_to_utf8_checked (s, error);
6789 if (!mono_error_ok (error))
6796 len = strlen (r) + 1;
6798 mp_s = (char *)mono_mempool_alloc (mp, len);
6800 mp_s = (char *)mono_image_alloc (image, len);
6802 memcpy (mp_s, r, len);
6810 * mono_string_to_utf8_image:
6811 * @s: a System.String
6813 * Same as mono_string_to_utf8, but allocate the string from the image mempool.
6816 mono_string_to_utf8_image (MonoImage *image, MonoString *s, MonoError *error)
6818 MONO_REQ_GC_UNSAFE_MODE;
6820 return mono_string_to_utf8_internal (NULL, image, s, FALSE, error);
6824 * mono_string_to_utf8_mp:
6825 * @s: a System.String
6827 * Same as mono_string_to_utf8, but allocate the string from a mempool.
6830 mono_string_to_utf8_mp (MonoMemPool *mp, MonoString *s, MonoError *error)
6832 MONO_REQ_GC_UNSAFE_MODE;
6834 return mono_string_to_utf8_internal (mp, NULL, s, FALSE, error);
6838 static MonoRuntimeExceptionHandlingCallbacks eh_callbacks;
6841 mono_install_eh_callbacks (MonoRuntimeExceptionHandlingCallbacks *cbs)
6843 eh_callbacks = *cbs;
6846 MonoRuntimeExceptionHandlingCallbacks *
6847 mono_get_eh_callbacks (void)
6849 return &eh_callbacks;
6853 * mono_raise_exception:
6854 * @ex: exception object
6856 * Signal the runtime that the exception @ex has been raised in unmanaged code.
6859 mono_raise_exception (MonoException *ex)
6861 MONO_REQ_GC_UNSAFE_MODE;
6864 * NOTE: Do NOT annotate this function with G_GNUC_NORETURN, since
6865 * that will cause gcc to omit the function epilog, causing problems when
6866 * the JIT tries to walk the stack, since the return address on the stack
6867 * will point into the next function in the executable, not this one.
6869 eh_callbacks.mono_raise_exception (ex);
6873 mono_raise_exception_with_context (MonoException *ex, MonoContext *ctx)
6875 MONO_REQ_GC_UNSAFE_MODE;
6877 eh_callbacks.mono_raise_exception_with_ctx (ex, ctx);
6881 * mono_wait_handle_new:
6882 * @domain: Domain where the object will be created
6883 * @handle: Handle for the wait handle
6884 * @error: set on error.
6886 * Returns: A new MonoWaitHandle created in the given domain for the
6887 * given handle. On failure returns NULL and sets @rror.
6890 mono_wait_handle_new (MonoDomain *domain, HANDLE handle, MonoError *error)
6892 MONO_REQ_GC_UNSAFE_MODE;
6894 MonoWaitHandle *res;
6895 gpointer params [1];
6896 static MonoMethod *handle_set;
6898 mono_error_init (error);
6899 res = (MonoWaitHandle *)mono_object_new_checked (domain, mono_defaults.manualresetevent_class, error);
6900 return_val_if_nok (error, NULL);
6902 /* Even though this method is virtual, it's safe to invoke directly, since the object type matches. */
6904 handle_set = mono_class_get_property_from_name (mono_defaults.manualresetevent_class, "Handle")->set;
6906 params [0] = &handle;
6908 mono_runtime_invoke_checked (handle_set, res, params, error);
6913 mono_wait_handle_get_handle (MonoWaitHandle *handle)
6915 MONO_REQ_GC_UNSAFE_MODE;
6917 static MonoClassField *f_safe_handle = NULL;
6920 if (!f_safe_handle) {
6921 f_safe_handle = mono_class_get_field_from_name (mono_defaults.manualresetevent_class, "safeWaitHandle");
6922 g_assert (f_safe_handle);
6925 mono_field_get_value ((MonoObject*)handle, f_safe_handle, &sh);
6931 mono_runtime_capture_context (MonoDomain *domain)
6933 MONO_REQ_GC_UNSAFE_MODE;
6935 RuntimeInvokeFunction runtime_invoke;
6937 if (!domain->capture_context_runtime_invoke || !domain->capture_context_method) {
6938 MonoMethod *method = mono_get_context_capture_method ();
6939 MonoMethod *wrapper;
6942 wrapper = mono_marshal_get_runtime_invoke (method, FALSE);
6943 domain->capture_context_runtime_invoke = mono_compile_method (wrapper);
6944 domain->capture_context_method = mono_compile_method (method);
6947 runtime_invoke = (RuntimeInvokeFunction)domain->capture_context_runtime_invoke;
6949 return runtime_invoke (NULL, NULL, NULL, domain->capture_context_method);
6952 * mono_async_result_new:
6953 * @domain:domain where the object will be created.
6954 * @handle: wait handle.
6955 * @state: state to pass to AsyncResult
6956 * @data: C closure data.
6958 * Creates a new MonoAsyncResult (AsyncResult C# class) in the given domain.
6959 * If the handle is not null, the handle is initialized to a MonOWaitHandle.
6963 mono_async_result_new (MonoDomain *domain, HANDLE handle, MonoObject *state, gpointer data, MonoObject *object_data)
6965 MONO_REQ_GC_UNSAFE_MODE;
6968 MonoAsyncResult *res = (MonoAsyncResult *)mono_object_new_checked (domain, mono_defaults.asyncresult_class, &error);
6969 mono_error_raise_exception (&error); /* FIXME don't raise here */
6970 MonoObject *context = mono_runtime_capture_context (domain);
6971 /* we must capture the execution context from the original thread */
6973 MONO_OBJECT_SETREF (res, execution_context, context);
6974 /* note: result may be null if the flow is suppressed */
6977 res->data = (void **)data;
6978 MONO_OBJECT_SETREF (res, object_data, object_data);
6979 MONO_OBJECT_SETREF (res, async_state, state);
6980 MonoWaitHandle *wait_handle = mono_wait_handle_new (domain, handle, &error);
6981 mono_error_raise_exception (&error); /* FIXME don't raise here */
6983 MONO_OBJECT_SETREF (res, handle, (MonoObject *) wait_handle);
6985 res->sync_completed = FALSE;
6986 res->completed = FALSE;
6992 ves_icall_System_Runtime_Remoting_Messaging_AsyncResult_Invoke (MonoAsyncResult *ares)
6994 MONO_REQ_GC_UNSAFE_MODE;
7001 g_assert (ares->async_delegate);
7003 ac = (MonoAsyncCall*) ares->object_data;
7005 res = mono_runtime_delegate_invoke (ares->async_delegate, (void**) &ares->async_state, NULL);
7007 gpointer wait_event = NULL;
7009 ac->msg->exc = NULL;
7010 res = mono_message_invoke (ares->async_delegate, ac->msg, &ac->msg->exc, &ac->out_args);
7011 MONO_OBJECT_SETREF (ac, res, res);
7013 mono_monitor_enter ((MonoObject*) ares);
7014 ares->completed = 1;
7016 wait_event = mono_wait_handle_get_handle ((MonoWaitHandle*) ares->handle);
7017 mono_monitor_exit ((MonoObject*) ares);
7019 if (wait_event != NULL)
7020 SetEvent (wait_event);
7022 if (ac->cb_method) {
7023 mono_runtime_invoke_checked (ac->cb_method, ac->cb_target, (gpointer*) &ares, &error);
7024 if (mono_error_set_pending_exception (&error))
7033 mono_message_init (MonoDomain *domain,
7034 MonoMethodMessage *this_obj,
7035 MonoReflectionMethod *method,
7036 MonoArray *out_args)
7038 MONO_REQ_GC_UNSAFE_MODE;
7040 static MonoClass *object_array_klass;
7041 static MonoClass *byte_array_klass;
7042 static MonoClass *string_array_klass;
7044 MonoMethodSignature *sig = mono_method_signature (method->method);
7051 if (!object_array_klass) {
7054 klass = mono_array_class_get (mono_defaults.byte_class, 1);
7056 byte_array_klass = klass;
7058 klass = mono_array_class_get (mono_defaults.string_class, 1);
7060 string_array_klass = klass;
7062 klass = mono_array_class_get (mono_defaults.object_class, 1);
7065 mono_atomic_store_release (&object_array_klass, klass);
7068 MONO_OBJECT_SETREF (this_obj, method, method);
7070 arr = mono_array_new_specific_checked (mono_class_vtable (domain, object_array_klass), sig->param_count, &error);
7071 mono_error_raise_exception (&error); /* FIXME don't raise here */
7073 MONO_OBJECT_SETREF (this_obj, args, arr);
7075 arr = mono_array_new_specific_checked (mono_class_vtable (domain, byte_array_klass), sig->param_count, &error);
7076 mono_error_raise_exception (&error); /* FIXME don't raise here */
7078 MONO_OBJECT_SETREF (this_obj, arg_types, arr);
7080 this_obj->async_result = NULL;
7081 this_obj->call_type = CallType_Sync;
7083 names = g_new (char *, sig->param_count);
7084 mono_method_get_param_names (method->method, (const char **) names);
7086 arr = mono_array_new_specific_checked (mono_class_vtable (domain, string_array_klass), sig->param_count, &error);
7087 mono_error_raise_exception (&error); /* FIXME don't raise here */
7089 MONO_OBJECT_SETREF (this_obj, names, arr);
7091 for (i = 0; i < sig->param_count; i++) {
7092 name = mono_string_new (domain, names [i]);
7093 mono_array_setref (this_obj->names, i, name);
7097 for (i = 0, j = 0; i < sig->param_count; i++) {
7098 if (sig->params [i]->byref) {
7100 MonoObject* arg = (MonoObject *)mono_array_get (out_args, gpointer, j);
7101 mono_array_setref (this_obj->args, i, arg);
7105 if (!(sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT))
7109 if (sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT)
7112 mono_array_set (this_obj->arg_types, guint8, i, arg_type);
7116 #ifndef DISABLE_REMOTING
7118 * mono_remoting_invoke:
7119 * @real_proxy: pointer to a RealProxy object
7120 * @msg: The MonoMethodMessage to execute
7121 * @exc: used to store exceptions
7122 * @out_args: used to store output arguments
7124 * This is used to call RealProxy::Invoke(). RealProxy::Invoke() returns an
7125 * IMessage interface and it is not trivial to extract results from there. So
7126 * we call an helper method PrivateInvoke instead of calling
7127 * RealProxy::Invoke() directly.
7129 * Returns: the result object.
7132 mono_remoting_invoke (MonoObject *real_proxy, MonoMethodMessage *msg, MonoObject **exc, MonoArray **out_args, MonoError *error)
7134 MONO_REQ_GC_UNSAFE_MODE;
7137 MonoMethod *im = real_proxy->vtable->domain->private_invoke_method;
7142 mono_error_init (error);
7144 /*static MonoObject *(*invoke) (gpointer, gpointer, MonoObject **, MonoArray **) = NULL;*/
7147 im = mono_class_get_method_from_name (mono_defaults.real_proxy_class, "PrivateInvoke", 4);
7149 mono_error_set_not_supported (error, "Linked away.");
7152 real_proxy->vtable->domain->private_invoke_method = im;
7155 pa [0] = real_proxy;
7160 o = mono_runtime_try_invoke (im, NULL, pa, exc, error);
7161 return_val_if_nok (error, NULL);
7168 mono_message_invoke (MonoObject *target, MonoMethodMessage *msg,
7169 MonoObject **exc, MonoArray **out_args)
7171 MONO_REQ_GC_UNSAFE_MODE;
7173 static MonoClass *object_array_klass;
7177 MonoMethodSignature *sig;
7180 int i, j, outarg_count = 0;
7182 #ifndef DISABLE_REMOTING
7183 if (target && mono_object_is_transparent_proxy (target)) {
7184 MonoTransparentProxy* tp = (MonoTransparentProxy *)target;
7185 if (mono_class_is_contextbound (tp->remote_class->proxy_class) && tp->rp->context == (MonoObject *) mono_context_get ()) {
7186 target = tp->rp->unwrapped_server;
7188 ret = mono_remoting_invoke ((MonoObject *)tp->rp, msg, exc, out_args, &error);
7189 mono_error_raise_exception (&error); /* FIXME don't raise here */
7196 domain = mono_domain_get ();
7197 method = msg->method->method;
7198 sig = mono_method_signature (method);
7200 for (i = 0; i < sig->param_count; i++) {
7201 if (sig->params [i]->byref)
7205 if (!object_array_klass) {
7208 klass = mono_array_class_get (mono_defaults.object_class, 1);
7211 mono_memory_barrier ();
7212 object_array_klass = klass;
7215 arr = mono_array_new_specific_checked (mono_class_vtable (domain, object_array_klass), outarg_count, &error);
7216 mono_error_raise_exception (&error); /* FIXME don't raise here */
7218 mono_gc_wbarrier_generic_store (out_args, (MonoObject*) arr);
7221 ret = mono_runtime_invoke_array (method, method->klass->valuetype? mono_object_unbox (target): target, msg->args, exc);
7223 for (i = 0, j = 0; i < sig->param_count; i++) {
7224 if (sig->params [i]->byref) {
7226 arg = (MonoObject *)mono_array_get (msg->args, gpointer, i);
7227 mono_array_setref (*out_args, j, arg);
7236 * mono_object_to_string:
7238 * @exc: Any exception thrown by ToString (). May be NULL.
7240 * Returns: the result of calling ToString () on an object.
7243 mono_object_to_string (MonoObject *obj, MonoObject **exc)
7245 MONO_REQ_GC_UNSAFE_MODE;
7247 static MonoMethod *to_string = NULL;
7256 to_string = mono_class_get_method_from_name_flags (mono_get_object_class (), "ToString", 0, METHOD_ATTRIBUTE_VIRTUAL | METHOD_ATTRIBUTE_PUBLIC);
7258 method = mono_object_get_virtual_method (obj, to_string);
7260 // Unbox value type if needed
7261 if (mono_class_is_valuetype (mono_method_get_class (method))) {
7262 target = mono_object_unbox (obj);
7266 s = (MonoString *) mono_runtime_try_invoke (method, target, NULL, exc, &error);
7267 if (*exc == NULL && !mono_error_ok (&error))
7268 *exc = (MonoObject*) mono_error_convert_to_exception (&error);
7270 mono_error_cleanup (&error);
7272 s = (MonoString *) mono_runtime_invoke_checked (method, target, NULL, &error);
7273 mono_error_raise_exception (&error); /* FIXME don't raise here */
7280 * mono_print_unhandled_exception:
7281 * @exc: The exception
7283 * Prints the unhandled exception.
7286 mono_print_unhandled_exception (MonoObject *exc)
7288 MONO_REQ_GC_UNSAFE_MODE;
7291 char *message = (char*)"";
7292 gboolean free_message = FALSE;
7295 if (exc == (MonoObject*)mono_object_domain (exc)->out_of_memory_ex) {
7296 message = g_strdup ("OutOfMemoryException");
7297 free_message = TRUE;
7298 } else if (exc == (MonoObject*)mono_object_domain (exc)->stack_overflow_ex) {
7299 message = g_strdup ("StackOverflowException"); //if we OVF, we can't expect to have stack space to JIT Exception::ToString.
7300 free_message = TRUE;
7303 if (((MonoException*)exc)->native_trace_ips) {
7304 message = mono_exception_get_native_backtrace ((MonoException*)exc);
7305 free_message = TRUE;
7307 MonoObject *other_exc = NULL;
7308 str = mono_object_to_string (exc, &other_exc);
7310 char *original_backtrace = mono_exception_get_managed_backtrace ((MonoException*)exc);
7311 char *nested_backtrace = mono_exception_get_managed_backtrace ((MonoException*)other_exc);
7313 message = g_strdup_printf ("Nested exception detected.\nOriginal Exception: %s\nNested exception:%s\n",
7314 original_backtrace, nested_backtrace);
7316 g_free (original_backtrace);
7317 g_free (nested_backtrace);
7318 free_message = TRUE;
7320 message = mono_string_to_utf8_checked (str, &error);
7321 if (!mono_error_ok (&error)) {
7322 mono_error_cleanup (&error);
7323 message = (char *) "";
7325 free_message = TRUE;
7332 * g_printerr ("\nUnhandled Exception: %s.%s: %s\n", exc->vtable->klass->name_space,
7333 * exc->vtable->klass->name, message);
7335 g_printerr ("\nUnhandled Exception:\n%s\n", message);
7342 * mono_delegate_ctor:
7343 * @this: pointer to an uninitialized delegate object
7344 * @target: target object
7345 * @addr: pointer to native code
7348 * Initialize a delegate and sets a specific method, not the one
7349 * associated with addr. This is useful when sharing generic code.
7350 * In that case addr will most probably not be associated with the
7351 * correct instantiation of the method.
7354 mono_delegate_ctor_with_method (MonoObject *this_obj, MonoObject *target, gpointer addr, MonoMethod *method)
7356 MONO_REQ_GC_UNSAFE_MODE;
7358 MonoDelegate *delegate = (MonoDelegate *)this_obj;
7360 g_assert (this_obj);
7363 g_assert (mono_class_has_parent (mono_object_class (this_obj), mono_defaults.multicastdelegate_class));
7366 delegate->method = method;
7368 mono_stats.delegate_creations++;
7370 #ifndef DISABLE_REMOTING
7371 if (target && target->vtable->klass == mono_defaults.transparent_proxy_class) {
7373 method = mono_marshal_get_remoting_invoke (method);
7374 delegate->method_ptr = mono_compile_method (method);
7375 MONO_OBJECT_SETREF (delegate, target, target);
7379 delegate->method_ptr = addr;
7380 MONO_OBJECT_SETREF (delegate, target, target);
7383 delegate->invoke_impl = arch_create_delegate_trampoline (delegate->object.vtable->domain, delegate->object.vtable->klass);
7384 if (callbacks.init_delegate)
7385 callbacks.init_delegate (delegate);
7389 * mono_delegate_ctor:
7390 * @this: pointer to an uninitialized delegate object
7391 * @target: target object
7392 * @addr: pointer to native code
7394 * This is used to initialize a delegate.
7397 mono_delegate_ctor (MonoObject *this_obj, MonoObject *target, gpointer addr)
7399 MONO_REQ_GC_UNSAFE_MODE;
7401 MonoDomain *domain = mono_domain_get ();
7403 MonoMethod *method = NULL;
7407 ji = mono_jit_info_table_find (domain, (char *)mono_get_addr_from_ftnptr (addr));
7409 if (!ji && domain != mono_get_root_domain ())
7410 ji = mono_jit_info_table_find (mono_get_root_domain (), (char *)mono_get_addr_from_ftnptr (addr));
7412 method = mono_jit_info_get_method (ji);
7413 g_assert (!method->klass->generic_container);
7416 mono_delegate_ctor_with_method (this_obj, target, addr, method);
7420 * mono_method_call_message_new:
7421 * @method: method to encapsulate
7422 * @params: parameters to the method
7423 * @invoke: optional, delegate invoke.
7424 * @cb: async callback delegate.
7425 * @state: state passed to the async callback.
7427 * Translates arguments pointers into a MonoMethodMessage.
7430 mono_method_call_message_new (MonoMethod *method, gpointer *params, MonoMethod *invoke,
7431 MonoDelegate **cb, MonoObject **state)
7433 MONO_REQ_GC_UNSAFE_MODE;
7437 MonoDomain *domain = mono_domain_get ();
7438 MonoMethodSignature *sig = mono_method_signature (method);
7439 MonoMethodMessage *msg;
7442 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
7443 mono_error_raise_exception (&error); /* FIXME don't raise here */
7446 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, invoke, NULL, &error);
7447 mono_error_raise_exception (&error); /* FIXME don't raise here */
7448 mono_message_init (domain, msg, rm, NULL);
7449 count = sig->param_count - 2;
7451 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, method, NULL, &error);
7452 mono_error_raise_exception (&error); /* FIXME don't raise here */
7453 mono_message_init (domain, msg, rm, NULL);
7454 count = sig->param_count;
7457 for (i = 0; i < count; i++) {
7462 if (sig->params [i]->byref)
7463 vpos = *((gpointer *)params [i]);
7467 klass = mono_class_from_mono_type (sig->params [i]);
7469 if (klass->valuetype) {
7470 arg = mono_value_box_checked (domain, klass, vpos, &error);
7471 mono_error_raise_exception (&error); /* FIXME don't raise here */
7473 arg = *((MonoObject **)vpos);
7475 mono_array_setref (msg->args, i, arg);
7478 if (cb != NULL && state != NULL) {
7479 *cb = *((MonoDelegate **)params [i]);
7481 *state = *((MonoObject **)params [i]);
7488 * mono_method_return_message_restore:
7490 * Restore results from message based processing back to arguments pointers
7493 mono_method_return_message_restore (MonoMethod *method, gpointer *params, MonoArray *out_args, MonoError *error)
7495 MONO_REQ_GC_UNSAFE_MODE;
7497 mono_error_init (error);
7499 MonoMethodSignature *sig = mono_method_signature (method);
7500 int i, j, type, size, out_len;
7502 if (out_args == NULL)
7504 out_len = mono_array_length (out_args);
7508 for (i = 0, j = 0; i < sig->param_count; i++) {
7509 MonoType *pt = sig->params [i];
7514 mono_error_set_execution_engine (error, "The proxy call returned an incorrect number of output arguments");
7518 arg = (char *)mono_array_get (out_args, gpointer, j);
7521 g_assert (type != MONO_TYPE_VOID);
7523 if (MONO_TYPE_IS_REFERENCE (pt)) {
7524 mono_gc_wbarrier_generic_store (*((MonoObject ***)params [i]), (MonoObject *)arg);
7527 MonoClass *klass = ((MonoObject*)arg)->vtable->klass;
7528 size = mono_class_value_size (klass, NULL);
7529 if (klass->has_references)
7530 mono_gc_wbarrier_value_copy (*((gpointer *)params [i]), arg + sizeof (MonoObject), 1, klass);
7532 mono_gc_memmove_atomic (*((gpointer *)params [i]), arg + sizeof (MonoObject), size);
7534 size = mono_class_value_size (mono_class_from_mono_type (pt), NULL);
7535 mono_gc_bzero_atomic (*((gpointer *)params [i]), size);
7544 #ifndef DISABLE_REMOTING
7547 * mono_load_remote_field:
7548 * @this: pointer to an object
7549 * @klass: klass of the object containing @field
7550 * @field: the field to load
7551 * @res: a storage to store the result
7553 * This method is called by the runtime on attempts to load fields of
7554 * transparent proxy objects. @this points to such TP, @klass is the class of
7555 * the object containing @field. @res is a storage location which can be
7556 * used to store the result.
7558 * Returns: an address pointing to the value of field.
7561 mono_load_remote_field (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, gpointer *res)
7564 gpointer result = mono_load_remote_field_checked (this_obj, klass, field, res, &error);
7565 mono_error_cleanup (&error);
7570 * mono_load_remote_field_checked:
7571 * @this: pointer to an object
7572 * @klass: klass of the object containing @field
7573 * @field: the field to load
7574 * @res: a storage to store the result
7575 * @error: set on error
7577 * This method is called by the runtime on attempts to load fields of
7578 * transparent proxy objects. @this points to such TP, @klass is the class of
7579 * the object containing @field. @res is a storage location which can be
7580 * used to store the result.
7582 * Returns: an address pointing to the value of field. On failure returns NULL and sets @error.
7585 mono_load_remote_field_checked (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, gpointer *res, MonoError *error)
7587 MONO_REQ_GC_UNSAFE_MODE;
7589 static MonoMethod *getter = NULL;
7591 mono_error_init (error);
7593 MonoDomain *domain = mono_domain_get ();
7594 MonoTransparentProxy *tp = (MonoTransparentProxy *) this_obj;
7595 MonoClass *field_class;
7596 MonoMethodMessage *msg;
7597 MonoArray *out_args;
7601 g_assert (mono_object_is_transparent_proxy (this_obj));
7602 g_assert (res != NULL);
7604 if (mono_class_is_contextbound (tp->remote_class->proxy_class) && tp->rp->context == (MonoObject *) mono_context_get ()) {
7605 mono_field_get_value (tp->rp->unwrapped_server, field, res);
7610 getter = mono_class_get_method_from_name (mono_defaults.object_class, "FieldGetter", -1);
7612 mono_error_set_not_supported (error, "Linked away.");
7617 field_class = mono_class_from_mono_type (field->type);
7619 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, error);
7620 return_val_if_nok (error, NULL);
7621 out_args = mono_array_new_checked (domain, mono_defaults.object_class, 1, error);
7622 return_val_if_nok (error, NULL);
7623 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, getter, NULL, error);
7624 return_val_if_nok (error, NULL);
7625 mono_message_init (domain, msg, rm, out_args);
7627 full_name = mono_type_get_full_name (klass);
7628 mono_array_setref (msg->args, 0, mono_string_new (domain, full_name));
7629 mono_array_setref (msg->args, 1, mono_string_new (domain, mono_field_get_name (field)));
7632 mono_remoting_invoke ((MonoObject *)(tp->rp), msg, &exc, &out_args, error);
7633 return_val_if_nok (error, NULL);
7636 mono_error_set_exception_instance (error, (MonoException *)exc);
7640 if (mono_array_length (out_args) == 0)
7643 mono_gc_wbarrier_generic_store (res, mono_array_get (out_args, MonoObject *, 0));
7645 if (field_class->valuetype) {
7646 return ((char *)*res) + sizeof (MonoObject);
7652 * mono_load_remote_field_new:
7657 * Missing documentation.
7660 mono_load_remote_field_new (MonoObject *this_obj, MonoClass *klass, MonoClassField *field)
7664 MonoObject *result = mono_load_remote_field_new_checked (this_obj, klass, field, &error);
7665 mono_error_cleanup (&error);
7670 * mono_load_remote_field_new_icall:
7671 * @this: pointer to an object
7672 * @klass: klass of the object containing @field
7673 * @field: the field to load
7675 * This method is called by the runtime on attempts to load fields of
7676 * transparent proxy objects. @this points to such TP, @klass is the class of
7677 * the object containing @field.
7679 * Returns: a freshly allocated object containing the value of the
7680 * field. On failure returns NULL and throws an exception.
7683 mono_load_remote_field_new_icall (MonoObject *this_obj, MonoClass *klass, MonoClassField *field)
7686 MonoObject *result = mono_load_remote_field_new_checked (this_obj, klass, field, &error);
7687 mono_error_set_pending_exception (&error);
7692 * mono_load_remote_field_new_checked:
7693 * @this: pointer to an object
7694 * @klass: klass of the object containing @field
7695 * @field: the field to load
7696 * @error: set on error.
7698 * This method is called by the runtime on attempts to load fields of
7699 * transparent proxy objects. @this points to such TP, @klass is the class of
7700 * the object containing @field.
7702 * Returns: a freshly allocated object containing the value of the field. On failure returns NULL and sets @error.
7705 mono_load_remote_field_new_checked (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, MonoError *error)
7707 MONO_REQ_GC_UNSAFE_MODE;
7709 mono_error_init (error);
7711 static MonoMethod *getter = NULL;
7712 MonoDomain *domain = mono_domain_get ();
7713 MonoTransparentProxy *tp = (MonoTransparentProxy *) this_obj;
7714 MonoClass *field_class;
7715 MonoMethodMessage *msg;
7716 MonoArray *out_args;
7717 MonoObject *exc, *res;
7720 g_assert (mono_object_is_transparent_proxy (this_obj));
7722 field_class = mono_class_from_mono_type (field->type);
7724 if (mono_class_is_contextbound (tp->remote_class->proxy_class) && tp->rp->context == (MonoObject *) mono_context_get ()) {
7726 if (field_class->valuetype) {
7727 res = mono_object_new_checked (domain, field_class, error);
7728 return_val_if_nok (error, NULL);
7729 val = ((gchar *) res) + sizeof (MonoObject);
7733 mono_field_get_value (tp->rp->unwrapped_server, field, val);
7738 getter = mono_class_get_method_from_name (mono_defaults.object_class, "FieldGetter", -1);
7740 mono_error_set_not_supported (error, "Linked away.");
7745 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, error);
7746 return_val_if_nok (error, NULL);
7747 out_args = mono_array_new_checked (domain, mono_defaults.object_class, 1, error);
7748 return_val_if_nok (error, NULL);
7750 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, getter, NULL, error);
7751 return_val_if_nok (error, NULL);
7752 mono_message_init (domain, msg, rm, out_args);
7754 full_name = mono_type_get_full_name (klass);
7755 mono_array_setref (msg->args, 0, mono_string_new (domain, full_name));
7756 mono_array_setref (msg->args, 1, mono_string_new (domain, mono_field_get_name (field)));
7759 mono_remoting_invoke ((MonoObject *)(tp->rp), msg, &exc, &out_args, error);
7760 return_val_if_nok (error, NULL);
7763 mono_error_set_exception_instance (error, (MonoException *)exc);
7767 if (mono_array_length (out_args) == 0)
7770 res = mono_array_get (out_args, MonoObject *, 0);
7776 * mono_store_remote_field:
7777 * @this_obj: pointer to an object
7778 * @klass: klass of the object containing @field
7779 * @field: the field to load
7780 * @val: the value/object to store
7782 * This method is called by the runtime on attempts to store fields of
7783 * transparent proxy objects. @this_obj points to such TP, @klass is the class of
7784 * the object containing @field. @val is the new value to store in @field.
7787 mono_store_remote_field (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, gpointer val)
7790 (void) mono_store_remote_field_checked (this_obj, klass, field, val, &error);
7791 mono_error_cleanup (&error);
7795 * mono_store_remote_field_checked:
7796 * @this_obj: pointer to an object
7797 * @klass: klass of the object containing @field
7798 * @field: the field to load
7799 * @val: the value/object to store
7800 * @error: set on error
7802 * This method is called by the runtime on attempts to store fields of
7803 * transparent proxy objects. @this_obj points to such TP, @klass is the class of
7804 * the object containing @field. @val is the new value to store in @field.
7806 * Returns: on success returns TRUE, on failure returns FALSE and sets @error.
7809 mono_store_remote_field_checked (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, gpointer val, MonoError *error)
7812 MONO_REQ_GC_UNSAFE_MODE;
7814 static MonoMethod *setter = NULL;
7816 MonoDomain *domain = mono_domain_get ();
7817 MonoTransparentProxy *tp = (MonoTransparentProxy *) this_obj;
7818 MonoClass *field_class;
7819 MonoMethodMessage *msg;
7820 MonoArray *out_args;
7825 mono_error_init (error);
7827 g_assert (mono_object_is_transparent_proxy (this_obj));
7829 field_class = mono_class_from_mono_type (field->type);
7831 if (mono_class_is_contextbound (tp->remote_class->proxy_class) && tp->rp->context == (MonoObject *) mono_context_get ()) {
7832 if (field_class->valuetype) mono_field_set_value (tp->rp->unwrapped_server, field, val);
7833 else mono_field_set_value (tp->rp->unwrapped_server, field, *((MonoObject **)val));
7838 setter = mono_class_get_method_from_name (mono_defaults.object_class, "FieldSetter", -1);
7840 mono_error_set_not_supported (error, "Linked away.");
7845 if (field_class->valuetype) {
7846 arg = mono_value_box_checked (domain, field_class, val, error);
7847 return_val_if_nok (error, FALSE);
7849 arg = *((MonoObject **)val);
7852 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, error);
7853 return_val_if_nok (error, FALSE);
7854 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, setter, NULL, error);
7855 return_val_if_nok (error, FALSE);
7856 mono_message_init (domain, msg, rm, NULL);
7858 full_name = mono_type_get_full_name (klass);
7859 mono_array_setref (msg->args, 0, mono_string_new (domain, full_name));
7860 mono_array_setref (msg->args, 1, mono_string_new (domain, mono_field_get_name (field)));
7861 mono_array_setref (msg->args, 2, arg);
7864 mono_remoting_invoke ((MonoObject *)(tp->rp), msg, &exc, &out_args, error);
7865 return_val_if_nok (error, FALSE);
7868 mono_error_set_exception_instance (error, (MonoException *)exc);
7875 * mono_store_remote_field_new:
7881 * Missing documentation
7884 mono_store_remote_field_new (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, MonoObject *arg)
7887 (void) mono_store_remote_field_new_checked (this_obj, klass, field, arg, &error);
7888 mono_error_cleanup (&error);
7892 * mono_store_remote_field_new_icall:
7898 * Missing documentation
7901 mono_store_remote_field_new_icall (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, MonoObject *arg)
7904 (void) mono_store_remote_field_new_checked (this_obj, klass, field, arg, &error);
7905 mono_error_set_pending_exception (&error);
7909 * mono_store_remote_field_new_checked:
7916 * Missing documentation
7919 mono_store_remote_field_new_checked (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, MonoObject *arg, MonoError *error)
7921 MONO_REQ_GC_UNSAFE_MODE;
7923 static MonoMethod *setter = NULL;
7924 MonoDomain *domain = mono_domain_get ();
7925 MonoTransparentProxy *tp = (MonoTransparentProxy *) this_obj;
7926 MonoClass *field_class;
7927 MonoMethodMessage *msg;
7928 MonoArray *out_args;
7932 mono_error_init (error);
7934 g_assert (mono_object_is_transparent_proxy (this_obj));
7936 field_class = mono_class_from_mono_type (field->type);
7938 if (mono_class_is_contextbound (tp->remote_class->proxy_class) && tp->rp->context == (MonoObject *) mono_context_get ()) {
7939 if (field_class->valuetype) mono_field_set_value (tp->rp->unwrapped_server, field, ((gchar *) arg) + sizeof (MonoObject));
7940 else mono_field_set_value (tp->rp->unwrapped_server, field, arg);
7945 setter = mono_class_get_method_from_name (mono_defaults.object_class, "FieldSetter", -1);
7947 mono_error_set_not_supported (error, "Linked away.");
7952 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, error);
7953 return_val_if_nok (error, FALSE);
7954 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, setter, NULL, error);
7955 return_val_if_nok (error, FALSE);
7956 mono_message_init (domain, msg, rm, NULL);
7958 full_name = mono_type_get_full_name (klass);
7959 mono_array_setref (msg->args, 0, mono_string_new (domain, full_name));
7960 mono_array_setref (msg->args, 1, mono_string_new (domain, mono_field_get_name (field)));
7961 mono_array_setref (msg->args, 2, arg);
7964 mono_remoting_invoke ((MonoObject *)(tp->rp), msg, &exc, &out_args, error);
7965 return_val_if_nok (error, FALSE);
7968 mono_error_set_exception_instance (error, (MonoException *)exc);
7976 * mono_create_ftnptr:
7978 * Given a function address, create a function descriptor for it.
7979 * This is only needed on some platforms.
7982 mono_create_ftnptr (MonoDomain *domain, gpointer addr)
7984 return callbacks.create_ftnptr (domain, addr);
7988 * mono_get_addr_from_ftnptr:
7990 * Given a pointer to a function descriptor, return the function address.
7991 * This is only needed on some platforms.
7994 mono_get_addr_from_ftnptr (gpointer descr)
7996 return callbacks.get_addr_from_ftnptr (descr);
8000 * mono_string_chars:
8003 * Returns a pointer to the UCS16 characters stored in the MonoString
8006 mono_string_chars (MonoString *s)
8008 // MONO_REQ_GC_UNSAFE_MODE; //FIXME too much trouble for now
8014 * mono_string_length:
8017 * Returns the lenght in characters of the string
8020 mono_string_length (MonoString *s)
8022 MONO_REQ_GC_UNSAFE_MODE;
8028 * mono_array_length:
8029 * @array: a MonoArray*
8031 * Returns the total number of elements in the array. This works for
8032 * both vectors and multidimensional arrays.
8035 mono_array_length (MonoArray *array)
8037 MONO_REQ_GC_UNSAFE_MODE;
8039 return array->max_length;
8043 * mono_array_addr_with_size:
8044 * @array: a MonoArray*
8045 * @size: size of the array elements
8046 * @idx: index into the array
8048 * Use this function to obtain the address for the @idx item on the
8049 * @array containing elements of size @size.
8051 * This method performs no bounds checking or type checking.
8053 * Returns the address of the @idx element in the array.
8056 mono_array_addr_with_size (MonoArray *array, int size, uintptr_t idx)
8058 MONO_REQ_GC_UNSAFE_MODE;
8060 return ((char*)(array)->vector) + size * idx;
8065 mono_glist_to_array (GList *list, MonoClass *eclass, MonoError *error)
8067 MonoDomain *domain = mono_domain_get ();
8071 mono_error_init (error);
8075 len = g_list_length (list);
8076 res = mono_array_new_checked (domain, eclass, len, error);
8077 return_val_if_nok (error, NULL);
8079 for (i = 0; list; list = list->next, i++)
8080 mono_array_set (res, gpointer, i, list->data);
8087 * The following section is purely to declare prototypes and
8088 * document the API, as these C files are processed by our
8094 * @array: array to alter
8095 * @element_type: A C type name, this macro will use the sizeof(type) to determine the element size
8096 * @index: index into the array
8097 * @value: value to set
8099 * Value Type version: This sets the @index's element of the @array
8100 * with elements of size sizeof(type) to the provided @value.
8102 * This macro does not attempt to perform type checking or bounds checking.
8104 * Use this to set value types in a `MonoArray`.
8106 void mono_array_set(MonoArray *array, Type element_type, uintptr_t index, Value value)
8111 * mono_array_setref:
8112 * @array: array to alter
8113 * @index: index into the array
8114 * @value: value to set
8116 * Reference Type version: This sets the @index's element of the
8117 * @array with elements of size sizeof(type) to the provided @value.
8119 * This macro does not attempt to perform type checking or bounds checking.
8121 * Use this to reference types in a `MonoArray`.
8123 void mono_array_setref(MonoArray *array, uintptr_t index, MonoObject *object)
8129 * @array: array on which to operate on
8130 * @element_type: C element type (example: MonoString *, int, MonoObject *)
8131 * @index: index into the array
8133 * Use this macro to retrieve the @index element of an @array and
8134 * extract the value assuming that the elements of the array match
8135 * the provided type value.
8137 * This method can be used with both arrays holding value types and
8138 * reference types. For reference types, the @type parameter should
8139 * be a `MonoObject*` or any subclass of it, like `MonoString*`.
8141 * This macro does not attempt to perform type checking or bounds checking.
8143 * Returns: The element at the @index position in the @array.
8145 Type mono_array_get (MonoArray *array, Type element_type, uintptr_t index)