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, MonoError *error);
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;
3532 const char *p = blob;
3533 mono_metadata_decode_blob_size (p, &p);
3536 case MONO_TYPE_BOOLEAN:
3539 *(guint8 *) value = *p;
3541 case MONO_TYPE_CHAR:
3544 *(guint16*) value = read16 (p);
3548 *(guint32*) value = read32 (p);
3552 *(guint64*) value = read64 (p);
3555 readr4 (p, (float*) value);
3558 readr8 (p, (double*) value);
3560 case MONO_TYPE_STRING:
3561 *(gpointer*) value = mono_ldstr_metadata_sig (domain, blob, &error);
3562 mono_error_raise_exception (&error); /* FIXME don't raise here */
3564 case MONO_TYPE_CLASS:
3565 *(gpointer*) value = NULL;
3569 g_warning ("type 0x%02x should not be in constant table", type);
3575 get_default_field_value (MonoDomain* domain, MonoClassField *field, void *value)
3577 MONO_REQ_GC_NEUTRAL_MODE;
3579 MonoTypeEnum def_type;
3582 data = mono_class_get_field_default_value (field, &def_type);
3583 mono_get_constant_value_from_blob (domain, def_type, data, value);
3587 mono_field_static_get_value_for_thread (MonoInternalThread *thread, MonoVTable *vt, MonoClassField *field, void *value)
3589 MONO_REQ_GC_UNSAFE_MODE;
3593 g_return_if_fail (field->type->attrs & FIELD_ATTRIBUTE_STATIC);
3595 if (field->type->attrs & FIELD_ATTRIBUTE_LITERAL) {
3596 get_default_field_value (vt->domain, field, value);
3600 if (field->offset == -1) {
3601 /* Special static */
3602 gpointer addr = g_hash_table_lookup (vt->domain->special_static_fields, field);
3603 src = mono_get_special_static_data_for_thread (thread, GPOINTER_TO_UINT (addr));
3605 src = (char*)mono_vtable_get_static_field_data (vt) + field->offset;
3607 mono_copy_value (field->type, value, src, TRUE);
3611 * mono_field_static_get_value:
3612 * @vt: vtable to the object
3613 * @field: MonoClassField describing the field to fetch information from
3614 * @value: where the value is returned
3616 * Use this routine to get the value of the static field @field value.
3618 * The pointer provided by value must be of the field type, for reference
3619 * types this is a MonoObject*, for value types its the actual pointer to
3624 * mono_field_static_get_value (vt, int_field, &i);
3627 mono_field_static_get_value (MonoVTable *vt, MonoClassField *field, void *value)
3629 MONO_REQ_GC_NEUTRAL_MODE;
3631 mono_field_static_get_value_for_thread (mono_thread_internal_current (), vt, field, value);
3635 * mono_property_set_value:
3636 * @prop: MonoProperty to set
3637 * @obj: instance object on which to act
3638 * @params: parameters to pass to the propery
3639 * @exc: optional exception
3641 * Invokes the property's set method with the given arguments on the
3642 * object instance obj (or NULL for static properties).
3644 * You can pass NULL as the exc argument if you don't want to
3645 * catch exceptions, otherwise, *exc will be set to the exception
3646 * thrown, if any. if an exception is thrown, you can't use the
3647 * MonoObject* result from the function.
3650 mono_property_set_value (MonoProperty *prop, void *obj, void **params, MonoObject **exc)
3652 MONO_REQ_GC_UNSAFE_MODE;
3655 do_runtime_invoke (prop->set, obj, params, exc, &error);
3656 if (exc && *exc == NULL && !mono_error_ok (&error)) {
3657 *exc = (MonoObject*) mono_error_convert_to_exception (&error);
3659 mono_error_cleanup (&error);
3664 * mono_property_set_value_checked:
3665 * @prop: MonoProperty to set
3666 * @obj: instance object on which to act
3667 * @params: parameters to pass to the propery
3668 * @error: set on error
3670 * Invokes the property's set method with the given arguments on the
3671 * object instance obj (or NULL for static properties).
3673 * Returns: TRUE on success. On failure returns FALSE and sets @error.
3674 * If an exception is thrown, it will be caught and returned via @error.
3677 mono_property_set_value_checked (MonoProperty *prop, void *obj, void **params, MonoError *error)
3679 MONO_REQ_GC_UNSAFE_MODE;
3683 mono_error_init (error);
3684 do_runtime_invoke (prop->set, obj, params, &exc, error);
3685 if (exc != NULL && is_ok (error))
3686 mono_error_set_exception_instance (error, (MonoException*)exc);
3687 return is_ok (error);
3691 * mono_property_get_value:
3692 * @prop: MonoProperty to fetch
3693 * @obj: instance object on which to act
3694 * @params: parameters to pass to the propery
3695 * @exc: optional exception
3697 * Invokes the property's get method with the given arguments on the
3698 * object instance obj (or NULL for static properties).
3700 * You can pass NULL as the exc argument if you don't want to
3701 * catch exceptions, otherwise, *exc will be set to the exception
3702 * thrown, if any. if an exception is thrown, you can't use the
3703 * MonoObject* result from the function.
3705 * Returns: the value from invoking the get method on the property.
3708 mono_property_get_value (MonoProperty *prop, void *obj, void **params, MonoObject **exc)
3710 MONO_REQ_GC_UNSAFE_MODE;
3713 MonoObject *val = do_runtime_invoke (prop->get, obj, params, exc, &error);
3714 if (exc && *exc == NULL && !mono_error_ok (&error)) {
3715 *exc = (MonoObject*) mono_error_convert_to_exception (&error);
3717 mono_error_cleanup (&error); /* FIXME don't raise here */
3724 * mono_property_get_value_checked:
3725 * @prop: MonoProperty to fetch
3726 * @obj: instance object on which to act
3727 * @params: parameters to pass to the propery
3728 * @error: set on error
3730 * Invokes the property's get method with the given arguments on the
3731 * object instance obj (or NULL for static properties).
3733 * If an exception is thrown, you can't use the
3734 * MonoObject* result from the function. The exception will be propagated via @error.
3736 * Returns: the value from invoking the get method on the property. On
3737 * failure returns NULL and sets @error.
3740 mono_property_get_value_checked (MonoProperty *prop, void *obj, void **params, MonoError *error)
3742 MONO_REQ_GC_UNSAFE_MODE;
3745 MonoObject *val = do_runtime_invoke (prop->get, obj, params, &exc, error);
3746 if (exc != NULL && !is_ok (error))
3747 mono_error_set_exception_instance (error, (MonoException*) exc);
3755 * mono_nullable_init:
3756 * @buf: The nullable structure to initialize.
3757 * @value: the value to initialize from
3758 * @klass: the type for the object
3760 * Initialize the nullable structure pointed to by @buf from @value which
3761 * should be a boxed value type. The size of @buf should be able to hold
3762 * as much data as the @klass->instance_size (which is the number of bytes
3763 * that will be copies).
3765 * Since Nullables have variable structure, we can not define a C
3766 * structure for them.
3769 mono_nullable_init (guint8 *buf, MonoObject *value, MonoClass *klass)
3771 MONO_REQ_GC_UNSAFE_MODE;
3773 MonoClass *param_class = klass->cast_class;
3775 mono_class_setup_fields_locking (klass);
3776 g_assert (klass->fields_inited);
3778 g_assert (mono_class_from_mono_type (klass->fields [0].type) == param_class);
3779 g_assert (mono_class_from_mono_type (klass->fields [1].type) == mono_defaults.boolean_class);
3781 *(guint8*)(buf + klass->fields [1].offset - sizeof (MonoObject)) = value ? 1 : 0;
3783 if (param_class->has_references)
3784 mono_gc_wbarrier_value_copy (buf + klass->fields [0].offset - sizeof (MonoObject), mono_object_unbox (value), 1, param_class);
3786 mono_gc_memmove_atomic (buf + klass->fields [0].offset - sizeof (MonoObject), mono_object_unbox (value), mono_class_value_size (param_class, NULL));
3788 mono_gc_bzero_atomic (buf + klass->fields [0].offset - sizeof (MonoObject), mono_class_value_size (param_class, NULL));
3793 * mono_nullable_box:
3794 * @buf: The buffer representing the data to be boxed
3795 * @klass: the type to box it as.
3796 * @error: set on oerr
3798 * Creates a boxed vtype or NULL from the Nullable structure pointed to by
3799 * @buf. On failure returns NULL and sets @error
3802 mono_nullable_box (guint8 *buf, MonoClass *klass, MonoError *error)
3804 MONO_REQ_GC_UNSAFE_MODE;
3806 mono_error_init (error);
3807 MonoClass *param_class = klass->cast_class;
3809 mono_class_setup_fields_locking (klass);
3810 g_assert (klass->fields_inited);
3812 g_assert (mono_class_from_mono_type (klass->fields [0].type) == param_class);
3813 g_assert (mono_class_from_mono_type (klass->fields [1].type) == mono_defaults.boolean_class);
3815 if (*(guint8*)(buf + klass->fields [1].offset - sizeof (MonoObject))) {
3816 MonoObject *o = mono_object_new_checked (mono_domain_get (), param_class, error);
3817 return_val_if_nok (error, NULL);
3818 if (param_class->has_references)
3819 mono_gc_wbarrier_value_copy (mono_object_unbox (o), buf + klass->fields [0].offset - sizeof (MonoObject), 1, param_class);
3821 mono_gc_memmove_atomic (mono_object_unbox (o), buf + klass->fields [0].offset - sizeof (MonoObject), mono_class_value_size (param_class, NULL));
3829 * mono_get_delegate_invoke:
3830 * @klass: The delegate class
3832 * Returns: the MonoMethod for the "Invoke" method in the delegate klass or NULL if @klass is a broken delegate type
3835 mono_get_delegate_invoke (MonoClass *klass)
3837 MONO_REQ_GC_NEUTRAL_MODE;
3841 /* This is called at runtime, so avoid the slower search in metadata */
3842 mono_class_setup_methods (klass);
3843 if (mono_class_has_failure (klass))
3845 im = mono_class_get_method_from_name (klass, "Invoke", -1);
3850 * mono_get_delegate_begin_invoke:
3851 * @klass: The delegate class
3853 * Returns: the MonoMethod for the "BeginInvoke" method in the delegate klass or NULL if @klass is a broken delegate type
3856 mono_get_delegate_begin_invoke (MonoClass *klass)
3858 MONO_REQ_GC_NEUTRAL_MODE;
3862 /* This is called at runtime, so avoid the slower search in metadata */
3863 mono_class_setup_methods (klass);
3864 if (mono_class_has_failure (klass))
3866 im = mono_class_get_method_from_name (klass, "BeginInvoke", -1);
3871 * mono_get_delegate_end_invoke:
3872 * @klass: The delegate class
3874 * Returns: the MonoMethod for the "EndInvoke" method in the delegate klass or NULL if @klass is a broken delegate type
3877 mono_get_delegate_end_invoke (MonoClass *klass)
3879 MONO_REQ_GC_NEUTRAL_MODE;
3883 /* This is called at runtime, so avoid the slower search in metadata */
3884 mono_class_setup_methods (klass);
3885 if (mono_class_has_failure (klass))
3887 im = mono_class_get_method_from_name (klass, "EndInvoke", -1);
3892 * mono_runtime_delegate_invoke:
3893 * @delegate: pointer to a delegate object.
3894 * @params: parameters for the delegate.
3895 * @exc: Pointer to the exception result.
3897 * Invokes the delegate method @delegate with the parameters provided.
3899 * You can pass NULL as the exc argument if you don't want to
3900 * catch exceptions, otherwise, *exc will be set to the exception
3901 * thrown, if any. if an exception is thrown, you can't use the
3902 * MonoObject* result from the function.
3905 mono_runtime_delegate_invoke (MonoObject *delegate, void **params, MonoObject **exc)
3907 MONO_REQ_GC_UNSAFE_MODE;
3911 MonoClass *klass = delegate->vtable->klass;
3914 im = mono_get_delegate_invoke (klass);
3916 g_error ("Could not lookup delegate invoke method for delegate %s", mono_type_get_full_name (klass));
3919 o = mono_runtime_try_invoke (im, delegate, params, exc, &error);
3920 if (*exc == NULL && !mono_error_ok (&error))
3921 *exc = (MonoObject*) mono_error_convert_to_exception (&error);
3923 mono_error_cleanup (&error);
3925 o = mono_runtime_invoke_checked (im, delegate, params, &error);
3926 mono_error_raise_exception (&error); /* FIXME don't raise here */
3932 static char **main_args = NULL;
3933 static int num_main_args = 0;
3936 * mono_runtime_get_main_args:
3938 * Returns: a MonoArray with the arguments passed to the main program
3941 mono_runtime_get_main_args (void)
3943 MONO_REQ_GC_UNSAFE_MODE;
3945 MonoArray *result = mono_runtime_get_main_args_checked (&error);
3946 mono_error_assert_ok (&error);
3951 * mono_runtime_get_main_args:
3952 * @error: set on error
3954 * Returns: a MonoArray with the arguments passed to the main
3955 * program. On failure returns NULL and sets @error.
3958 mono_runtime_get_main_args_checked (MonoError *error)
3962 MonoDomain *domain = mono_domain_get ();
3964 mono_error_init (error);
3966 res = (MonoArray*)mono_array_new_checked (domain, mono_defaults.string_class, num_main_args, error);
3967 return_val_if_nok (error, NULL);
3969 for (i = 0; i < num_main_args; ++i)
3970 mono_array_setref (res, i, mono_string_new (domain, main_args [i]));
3976 free_main_args (void)
3978 MONO_REQ_GC_NEUTRAL_MODE;
3982 for (i = 0; i < num_main_args; ++i)
3983 g_free (main_args [i]);
3990 * mono_runtime_set_main_args:
3991 * @argc: number of arguments from the command line
3992 * @argv: array of strings from the command line
3994 * Set the command line arguments from an embedding application that doesn't otherwise call
3995 * mono_runtime_run_main ().
3998 mono_runtime_set_main_args (int argc, char* argv[])
4000 MONO_REQ_GC_NEUTRAL_MODE;
4005 main_args = g_new0 (char*, argc);
4006 num_main_args = argc;
4008 for (i = 0; i < argc; ++i) {
4011 utf8_arg = mono_utf8_from_external (argv[i]);
4012 if (utf8_arg == NULL) {
4013 g_print ("\nCannot determine the text encoding for argument %d (%s).\n", i, argv [i]);
4014 g_print ("Please add the correct encoding to MONO_EXTERNAL_ENCODINGS and try again.\n");
4018 main_args [i] = utf8_arg;
4025 * mono_runtime_run_main:
4026 * @method: the method to start the application with (usually Main)
4027 * @argc: number of arguments from the command line
4028 * @argv: array of strings from the command line
4029 * @exc: excetption results
4031 * Execute a standard Main() method (argc/argv contains the
4032 * executable name). This method also sets the command line argument value
4033 * needed by System.Environment.
4038 mono_runtime_run_main (MonoMethod *method, int argc, char* argv[],
4041 MONO_REQ_GC_UNSAFE_MODE;
4045 MonoArray *args = NULL;
4046 MonoDomain *domain = mono_domain_get ();
4047 gchar *utf8_fullpath;
4048 MonoMethodSignature *sig;
4050 g_assert (method != NULL);
4052 mono_thread_set_main (mono_thread_current ());
4054 main_args = g_new0 (char*, argc);
4055 num_main_args = argc;
4057 if (!g_path_is_absolute (argv [0])) {
4058 gchar *basename = g_path_get_basename (argv [0]);
4059 gchar *fullpath = g_build_filename (method->klass->image->assembly->basedir,
4063 utf8_fullpath = mono_utf8_from_external (fullpath);
4064 if(utf8_fullpath == NULL) {
4065 /* Printing the arg text will cause glib to
4066 * whinge about "Invalid UTF-8", but at least
4067 * its relevant, and shows the problem text
4070 g_print ("\nCannot determine the text encoding for the assembly location: %s\n", fullpath);
4071 g_print ("Please add the correct encoding to MONO_EXTERNAL_ENCODINGS and try again.\n");
4078 utf8_fullpath = mono_utf8_from_external (argv[0]);
4079 if(utf8_fullpath == NULL) {
4080 g_print ("\nCannot determine the text encoding for the assembly location: %s\n", argv[0]);
4081 g_print ("Please add the correct encoding to MONO_EXTERNAL_ENCODINGS and try again.\n");
4086 main_args [0] = utf8_fullpath;
4088 for (i = 1; i < argc; ++i) {
4091 utf8_arg=mono_utf8_from_external (argv[i]);
4092 if(utf8_arg==NULL) {
4093 /* Ditto the comment about Invalid UTF-8 here */
4094 g_print ("\nCannot determine the text encoding for argument %d (%s).\n", i, argv[i]);
4095 g_print ("Please add the correct encoding to MONO_EXTERNAL_ENCODINGS and try again.\n");
4099 main_args [i] = utf8_arg;
4104 sig = mono_method_signature (method);
4106 g_print ("Unable to load Main method.\n");
4110 if (sig->param_count) {
4111 args = (MonoArray*)mono_array_new_checked (domain, mono_defaults.string_class, argc, &error);
4112 mono_error_assert_ok (&error);
4113 for (i = 0; i < argc; ++i) {
4114 /* The encodings should all work, given that
4115 * we've checked all these args for the
4118 gchar *str = mono_utf8_from_external (argv [i]);
4119 MonoString *arg = mono_string_new (domain, str);
4120 mono_array_setref (args, i, arg);
4124 args = (MonoArray*)mono_array_new_checked (domain, mono_defaults.string_class, 0, &error);
4125 mono_error_assert_ok (&error);
4128 mono_assembly_set_main (method->klass->image->assembly);
4130 return mono_runtime_exec_main (method, args, exc);
4134 serialize_object (MonoObject *obj, gboolean *failure, MonoObject **exc)
4136 static MonoMethod *serialize_method;
4142 if (!serialize_method) {
4143 MonoClass *klass = mono_class_get_remoting_services_class ();
4144 serialize_method = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
4147 if (!serialize_method) {
4152 g_assert (!mono_class_is_marshalbyref (mono_object_class (obj)));
4157 array = mono_runtime_try_invoke (serialize_method, NULL, params, exc, &error);
4158 if (*exc == NULL && !mono_error_ok (&error))
4159 *exc = (MonoObject*) mono_error_convert_to_exception (&error); /* FIXME convert serialize_object to MonoError */
4161 mono_error_cleanup (&error);
4170 deserialize_object (MonoObject *obj, gboolean *failure, MonoObject **exc)
4172 MONO_REQ_GC_UNSAFE_MODE;
4174 static MonoMethod *deserialize_method;
4180 if (!deserialize_method) {
4181 MonoClass *klass = mono_class_get_remoting_services_class ();
4182 deserialize_method = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
4184 if (!deserialize_method) {
4192 result = mono_runtime_try_invoke (deserialize_method, NULL, params, exc, &error);
4193 if (*exc == NULL && !mono_error_ok (&error))
4194 *exc = (MonoObject*) mono_error_convert_to_exception (&error); /* FIXME convert deserialize_object to MonoError */
4196 mono_error_cleanup (&error);
4204 #ifndef DISABLE_REMOTING
4206 make_transparent_proxy (MonoObject *obj, MonoError *error)
4208 MONO_REQ_GC_UNSAFE_MODE;
4210 static MonoMethod *get_proxy_method;
4212 MonoDomain *domain = mono_domain_get ();
4213 MonoRealProxy *real_proxy;
4214 MonoReflectionType *reflection_type;
4215 MonoTransparentProxy *transparent_proxy;
4217 mono_error_init (error);
4219 if (!get_proxy_method)
4220 get_proxy_method = mono_class_get_method_from_name (mono_defaults.real_proxy_class, "GetTransparentProxy", 0);
4222 g_assert (mono_class_is_marshalbyref (obj->vtable->klass));
4224 real_proxy = (MonoRealProxy*) mono_object_new_checked (domain, mono_defaults.real_proxy_class, error);
4225 return_val_if_nok (error, NULL);
4226 reflection_type = mono_type_get_object_checked (domain, &obj->vtable->klass->byval_arg, error);
4227 return_val_if_nok (error, NULL);
4229 MONO_OBJECT_SETREF (real_proxy, class_to_proxy, reflection_type);
4230 MONO_OBJECT_SETREF (real_proxy, unwrapped_server, obj);
4232 MonoObject *exc = NULL;
4234 transparent_proxy = (MonoTransparentProxy*) mono_runtime_try_invoke (get_proxy_method, real_proxy, NULL, &exc, error);
4235 if (exc != NULL && is_ok (error))
4236 mono_error_set_exception_instance (error, (MonoException*)exc);
4238 return (MonoObject*) transparent_proxy;
4240 #endif /* DISABLE_REMOTING */
4243 * mono_object_xdomain_representation
4245 * @target_domain: a domain
4246 * @error: set on error.
4248 * Creates a representation of obj in the domain target_domain. This
4249 * is either a copy of obj arrived through via serialization and
4250 * deserialization or a proxy, depending on whether the object is
4251 * serializable or marshal by ref. obj must not be in target_domain.
4253 * If the object cannot be represented in target_domain, NULL is
4254 * returned and @error is set appropriately.
4257 mono_object_xdomain_representation (MonoObject *obj, MonoDomain *target_domain, MonoError *error)
4259 MONO_REQ_GC_UNSAFE_MODE;
4261 mono_error_init (error);
4262 MonoObject *deserialized = NULL;
4264 #ifndef DISABLE_REMOTING
4265 if (mono_class_is_marshalbyref (mono_object_class (obj))) {
4266 deserialized = make_transparent_proxy (obj, error);
4271 gboolean failure = FALSE;
4272 MonoDomain *domain = mono_domain_get ();
4273 MonoObject *serialized;
4274 MonoObject *exc = NULL;
4276 mono_domain_set_internal_with_options (mono_object_domain (obj), FALSE);
4277 serialized = serialize_object (obj, &failure, &exc);
4278 mono_domain_set_internal_with_options (target_domain, FALSE);
4280 deserialized = deserialize_object (serialized, &failure, &exc);
4281 if (domain != target_domain)
4282 mono_domain_set_internal_with_options (domain, FALSE);
4284 mono_error_set_exception_instance (error, (MonoException*)exc);
4287 return deserialized;
4290 /* Used in call_unhandled_exception_delegate */
4292 create_unhandled_exception_eventargs (MonoObject *exc)
4294 MONO_REQ_GC_UNSAFE_MODE;
4299 MonoMethod *method = NULL;
4300 MonoBoolean is_terminating = TRUE;
4303 klass = mono_class_get_unhandled_exception_event_args_class ();
4304 mono_class_init (klass);
4306 /* UnhandledExceptionEventArgs only has 1 public ctor with 2 args */
4307 method = mono_class_get_method_from_name_flags (klass, ".ctor", 2, METHOD_ATTRIBUTE_PUBLIC);
4311 args [1] = &is_terminating;
4313 obj = mono_object_new_checked (mono_domain_get (), klass, &error);
4314 mono_error_raise_exception (&error); /* FIXME don't raise here */
4316 mono_runtime_invoke_checked (method, obj, args, &error);
4317 mono_error_raise_exception (&error); /* FIXME don't raise here */
4322 /* Used in mono_unhandled_exception */
4324 call_unhandled_exception_delegate (MonoDomain *domain, MonoObject *delegate, MonoObject *exc) {
4325 MONO_REQ_GC_UNSAFE_MODE;
4327 MonoObject *e = NULL;
4329 MonoDomain *current_domain = mono_domain_get ();
4331 if (domain != current_domain)
4332 mono_domain_set_internal_with_options (domain, FALSE);
4334 g_assert (domain == mono_object_domain (domain->domain));
4336 if (mono_object_domain (exc) != domain) {
4339 exc = mono_object_xdomain_representation (exc, domain, &error);
4341 if (!is_ok (&error)) {
4342 MonoError inner_error;
4343 MonoException *serialization_exc = mono_error_convert_to_exception (&error);
4344 exc = mono_object_xdomain_representation ((MonoObject*)serialization_exc, domain, &inner_error);
4345 mono_error_assert_ok (&inner_error);
4347 exc = (MonoObject*) mono_exception_from_name_msg (mono_get_corlib (),
4348 "System.Runtime.Serialization", "SerializationException",
4349 "Could not serialize unhandled exception.");
4353 g_assert (mono_object_domain (exc) == domain);
4355 pa [0] = domain->domain;
4356 pa [1] = create_unhandled_exception_eventargs (exc);
4357 mono_runtime_delegate_invoke (delegate, pa, &e);
4359 if (domain != current_domain)
4360 mono_domain_set_internal_with_options (current_domain, FALSE);
4364 gchar *msg = mono_string_to_utf8_checked (((MonoException *) e)->message, &error);
4365 if (!mono_error_ok (&error)) {
4366 g_warning ("Exception inside UnhandledException handler with invalid message (Invalid characters)\n");
4367 mono_error_cleanup (&error);
4369 g_warning ("exception inside UnhandledException handler: %s\n", msg);
4375 static MonoRuntimeUnhandledExceptionPolicy runtime_unhandled_exception_policy = MONO_UNHANDLED_POLICY_CURRENT;
4378 * mono_runtime_unhandled_exception_policy_set:
4379 * @policy: the new policy
4381 * This is a VM internal routine.
4383 * Sets the runtime policy for handling unhandled exceptions.
4386 mono_runtime_unhandled_exception_policy_set (MonoRuntimeUnhandledExceptionPolicy policy) {
4387 runtime_unhandled_exception_policy = policy;
4391 * mono_runtime_unhandled_exception_policy_get:
4393 * This is a VM internal routine.
4395 * Gets the runtime policy for handling unhandled exceptions.
4397 MonoRuntimeUnhandledExceptionPolicy
4398 mono_runtime_unhandled_exception_policy_get (void) {
4399 return runtime_unhandled_exception_policy;
4403 * mono_unhandled_exception:
4404 * @exc: exception thrown
4406 * This is a VM internal routine.
4408 * We call this function when we detect an unhandled exception
4409 * in the default domain.
4411 * It invokes the * UnhandledException event in AppDomain or prints
4412 * a warning to the console
4415 mono_unhandled_exception (MonoObject *exc)
4417 MONO_REQ_GC_UNSAFE_MODE;
4420 MonoClassField *field;
4421 MonoDomain *current_domain, *root_domain;
4422 MonoObject *current_appdomain_delegate = NULL, *root_appdomain_delegate = NULL;
4424 if (mono_class_has_parent (exc->vtable->klass, mono_defaults.threadabortexception_class))
4427 field = mono_class_get_field_from_name (mono_defaults.appdomain_class, "UnhandledException");
4430 current_domain = mono_domain_get ();
4431 root_domain = mono_get_root_domain ();
4433 root_appdomain_delegate = mono_field_get_value_object_checked (root_domain, field, (MonoObject*) root_domain->domain, &error);
4434 mono_error_raise_exception (&error); /* FIXME don't raise here */
4435 if (current_domain != root_domain) {
4436 current_appdomain_delegate = mono_field_get_value_object_checked (current_domain, field, (MonoObject*) current_domain->domain, &error);
4437 mono_error_raise_exception (&error); /* FIXME don't raise here */
4440 if (!current_appdomain_delegate && !root_appdomain_delegate) {
4441 mono_print_unhandled_exception (exc);
4443 if (root_appdomain_delegate)
4444 call_unhandled_exception_delegate (root_domain, root_appdomain_delegate, exc);
4445 if (current_appdomain_delegate)
4446 call_unhandled_exception_delegate (current_domain, current_appdomain_delegate, exc);
4449 /* set exitcode only if we will abort the process */
4450 if ((main_thread && mono_thread_internal_current () == main_thread->internal_thread)
4451 || mono_runtime_unhandled_exception_policy_get () == MONO_UNHANDLED_POLICY_CURRENT)
4453 mono_environment_exitcode_set (1);
4458 * mono_runtime_exec_managed_code:
4459 * @domain: Application domain
4460 * @main_func: function to invoke from the execution thread
4461 * @main_args: parameter to the main_func
4463 * Launch a new thread to execute a function
4465 * main_func is called back from the thread with main_args as the
4466 * parameter. The callback function is expected to start Main()
4467 * eventually. This function then waits for all managed threads to
4469 * It is not necesseray anymore to execute managed code in a subthread,
4470 * so this function should not be used anymore by default: just
4471 * execute the code and then call mono_thread_manage ().
4474 mono_runtime_exec_managed_code (MonoDomain *domain,
4475 MonoMainThreadFunc main_func,
4479 mono_thread_create_checked (domain, main_func, main_args, &error);
4480 mono_error_assert_ok (&error);
4482 mono_thread_manage ();
4486 * Execute a standard Main() method (args doesn't contain the
4490 mono_runtime_exec_main (MonoMethod *method, MonoArray *args, MonoObject **exc)
4492 MONO_REQ_GC_UNSAFE_MODE;
4498 MonoCustomAttrInfo* cinfo;
4499 gboolean has_stathread_attribute;
4500 MonoInternalThread* thread = mono_thread_internal_current ();
4506 domain = mono_object_domain (args);
4507 if (!domain->entry_assembly) {
4509 MonoAssembly *assembly;
4511 assembly = method->klass->image->assembly;
4512 domain->entry_assembly = assembly;
4513 /* Domains created from another domain already have application_base and configuration_file set */
4514 if (domain->setup->application_base == NULL) {
4515 MONO_OBJECT_SETREF (domain->setup, application_base, mono_string_new (domain, assembly->basedir));
4518 if (domain->setup->configuration_file == NULL) {
4519 str = g_strconcat (assembly->image->name, ".config", NULL);
4520 MONO_OBJECT_SETREF (domain->setup, configuration_file, mono_string_new (domain, str));
4522 mono_domain_set_options_from_config (domain);
4526 cinfo = mono_custom_attrs_from_method_checked (method, &error);
4527 mono_error_cleanup (&error); /* FIXME warn here? */
4529 has_stathread_attribute = mono_custom_attrs_has_attr (cinfo, mono_class_get_sta_thread_attribute_class ());
4531 mono_custom_attrs_free (cinfo);
4533 has_stathread_attribute = FALSE;
4535 if (has_stathread_attribute) {
4536 thread->apartment_state = ThreadApartmentState_STA;
4538 thread->apartment_state = ThreadApartmentState_MTA;
4540 mono_thread_init_apartment_state ();
4542 /* FIXME: check signature of method */
4543 if (mono_method_signature (method)->ret->type == MONO_TYPE_I4) {
4546 res = mono_runtime_try_invoke (method, NULL, pa, exc, &error);
4547 if (*exc == NULL && !mono_error_ok (&error))
4548 *exc = (MonoObject*) mono_error_convert_to_exception (&error);
4550 mono_error_cleanup (&error);
4552 res = mono_runtime_invoke_checked (method, NULL, pa, &error);
4553 mono_error_raise_exception (&error); /* FIXME don't raise here */
4557 rval = *(guint32 *)((char *)res + sizeof (MonoObject));
4561 mono_environment_exitcode_set (rval);
4564 mono_runtime_try_invoke (method, NULL, pa, exc, &error);
4565 if (*exc == NULL && !mono_error_ok (&error))
4566 *exc = (MonoObject*) mono_error_convert_to_exception (&error);
4568 mono_error_cleanup (&error);
4570 mono_runtime_invoke_checked (method, NULL, pa, &error);
4571 mono_error_raise_exception (&error); /* FIXME don't raise here */
4577 /* If the return type of Main is void, only
4578 * set the exitcode if an exception was thrown
4579 * (we don't want to blow away an
4580 * explicitly-set exit code)
4583 mono_environment_exitcode_set (rval);
4591 * mono_runtime_invoke_array:
4592 * @method: method to invoke
4593 * @obJ: object instance
4594 * @params: arguments to the method
4595 * @exc: exception information.
4597 * Invokes the method represented by @method on the object @obj.
4599 * obj is the 'this' pointer, it should be NULL for static
4600 * methods, a MonoObject* for object instances and a pointer to
4601 * the value type for value types.
4603 * The params array contains the arguments to the method with the
4604 * same convention: MonoObject* pointers for object instances and
4605 * pointers to the value type otherwise. The _invoke_array
4606 * variant takes a C# object[] as the params argument (MonoArray
4607 * *params): in this case the value types are boxed inside the
4608 * respective reference representation.
4610 * From unmanaged code you'll usually use the
4611 * mono_runtime_invoke_checked() variant.
4613 * Note that this function doesn't handle virtual methods for
4614 * you, it will exec the exact method you pass: we still need to
4615 * expose a function to lookup the derived class implementation
4616 * of a virtual method (there are examples of this in the code,
4619 * You can pass NULL as the exc argument if you don't want to
4620 * catch exceptions, otherwise, *exc will be set to the exception
4621 * thrown, if any. if an exception is thrown, you can't use the
4622 * MonoObject* result from the function.
4624 * If the method returns a value type, it is boxed in an object
4628 mono_runtime_invoke_array (MonoMethod *method, void *obj, MonoArray *params,
4631 MONO_REQ_GC_UNSAFE_MODE;
4634 MonoMethodSignature *sig = mono_method_signature (method);
4635 gpointer *pa = NULL;
4638 gboolean has_byref_nullables = FALSE;
4640 if (NULL != params) {
4641 pa = (void **)alloca (sizeof (gpointer) * mono_array_length (params));
4642 for (i = 0; i < mono_array_length (params); i++) {
4643 MonoType *t = sig->params [i];
4649 case MONO_TYPE_BOOLEAN:
4652 case MONO_TYPE_CHAR:
4661 case MONO_TYPE_VALUETYPE:
4662 if (t->type == MONO_TYPE_VALUETYPE && mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
4663 /* The runtime invoke wrapper needs the original boxed vtype, it does handle byref values as well. */
4664 pa [i] = mono_array_get (params, MonoObject*, i);
4666 has_byref_nullables = TRUE;
4668 /* MS seems to create the objects if a null is passed in */
4669 if (!mono_array_get (params, MonoObject*, i)) {
4670 MonoObject *o = mono_object_new_checked (mono_domain_get (), mono_class_from_mono_type (sig->params [i]), &error);
4671 mono_error_raise_exception (&error); /* FIXME don't raise here */
4672 mono_array_setref (params, i, o);
4677 * We can't pass the unboxed vtype byref to the callee, since
4678 * that would mean the callee would be able to modify boxed
4679 * primitive types. So we (and MS) make a copy of the boxed
4680 * object, pass that to the callee, and replace the original
4681 * boxed object in the arg array with the copy.
4683 MonoObject *orig = mono_array_get (params, MonoObject*, i);
4684 MonoObject *copy = mono_value_box_checked (mono_domain_get (), orig->vtable->klass, mono_object_unbox (orig), &error);
4685 mono_error_raise_exception (&error); /* FIXME don't raise here */
4686 mono_array_setref (params, i, copy);
4689 pa [i] = mono_object_unbox (mono_array_get (params, MonoObject*, i));
4692 case MONO_TYPE_STRING:
4693 case MONO_TYPE_OBJECT:
4694 case MONO_TYPE_CLASS:
4695 case MONO_TYPE_ARRAY:
4696 case MONO_TYPE_SZARRAY:
4698 pa [i] = mono_array_addr (params, MonoObject*, i);
4699 // FIXME: I need to check this code path
4701 pa [i] = mono_array_get (params, MonoObject*, i);
4703 case MONO_TYPE_GENERICINST:
4705 t = &t->data.generic_class->container_class->this_arg;
4707 t = &t->data.generic_class->container_class->byval_arg;
4709 case MONO_TYPE_PTR: {
4712 /* The argument should be an IntPtr */
4713 arg = mono_array_get (params, MonoObject*, i);
4717 g_assert (arg->vtable->klass == mono_defaults.int_class);
4718 pa [i] = ((MonoIntPtr*)arg)->m_value;
4723 g_error ("type 0x%x not handled in mono_runtime_invoke_array", sig->params [i]->type);
4728 if (!strcmp (method->name, ".ctor") && method->klass != mono_defaults.string_class) {
4731 if (mono_class_is_nullable (method->klass)) {
4732 /* Need to create a boxed vtype instead */
4738 MonoObject *result = mono_value_box_checked (mono_domain_get (), method->klass->cast_class, pa [0], &error);
4739 mono_error_raise_exception (&error); /* FIXME don't raise here */
4745 obj = mono_object_new_checked (mono_domain_get (), method->klass, &error);
4746 g_assert (obj && mono_error_ok (&error)); /*maybe we should raise a TLE instead?*/ /* FIXME don't swallow error */
4747 #ifndef DISABLE_REMOTING
4748 if (mono_object_class(obj) == mono_defaults.transparent_proxy_class) {
4749 method = mono_marshal_get_remoting_invoke (method->slot == -1 ? method : method->klass->vtable [method->slot]);
4752 if (method->klass->valuetype)
4753 o = (MonoObject *)mono_object_unbox ((MonoObject *)obj);
4756 } else if (method->klass->valuetype) {
4757 obj = mono_value_box_checked (mono_domain_get (), method->klass, obj, &error);
4758 mono_error_raise_exception (&error); /* FIXME don't raise here */
4762 mono_runtime_try_invoke (method, o, pa, exc, &error);
4763 if (*exc == NULL && !mono_error_ok (&error))
4764 *exc = (MonoObject*) mono_error_convert_to_exception (&error);
4766 mono_error_cleanup (&error);
4768 mono_runtime_invoke_checked (method, o, pa, &error);
4769 mono_error_raise_exception (&error); /* FIXME don't raise here */
4772 return (MonoObject *)obj;
4774 if (mono_class_is_nullable (method->klass)) {
4775 MonoObject *nullable;
4777 /* Convert the unboxed vtype into a Nullable structure */
4778 nullable = mono_object_new_checked (mono_domain_get (), method->klass, &error);
4779 mono_error_raise_exception (&error); /* FIXME don't raise here */
4781 MonoObject *boxed = mono_value_box_checked (mono_domain_get (), method->klass->cast_class, obj, &error);
4782 mono_error_raise_exception (&error); /* FIXME don't raise here */
4783 mono_nullable_init ((guint8 *)mono_object_unbox (nullable), boxed, method->klass);
4784 obj = mono_object_unbox (nullable);
4787 /* obj must be already unboxed if needed */
4789 res = mono_runtime_try_invoke (method, obj, pa, exc, &error);
4790 if (*exc == NULL && !mono_error_ok (&error))
4791 *exc = (MonoObject*) mono_error_convert_to_exception (&error);
4793 mono_error_cleanup (&error);
4795 res = mono_runtime_invoke_checked (method, obj, pa, &error);
4796 mono_error_raise_exception (&error); /* FIXME don't raise here */
4799 if (sig->ret->type == MONO_TYPE_PTR) {
4800 MonoClass *pointer_class;
4801 static MonoMethod *box_method;
4803 MonoObject *box_exc;
4806 * The runtime-invoke wrapper returns a boxed IntPtr, need to
4807 * convert it to a Pointer object.
4809 pointer_class = mono_class_get_pointer_class ();
4811 box_method = mono_class_get_method_from_name (pointer_class, "Box", -1);
4813 g_assert (res->vtable->klass == mono_defaults.int_class);
4814 box_args [0] = ((MonoIntPtr*)res)->m_value;
4815 box_args [1] = mono_type_get_object_checked (mono_domain_get (), sig->ret, &error);
4816 mono_error_raise_exception (&error); /* FIXME don't raise here */
4818 res = mono_runtime_try_invoke (box_method, NULL, box_args, &box_exc, &error);
4819 g_assert (box_exc == NULL);
4820 mono_error_assert_ok (&error);
4823 if (has_byref_nullables) {
4825 * The runtime invoke wrapper already converted byref nullables back,
4826 * and stored them in pa, we just need to copy them back to the
4829 for (i = 0; i < mono_array_length (params); i++) {
4830 MonoType *t = sig->params [i];
4832 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
4833 mono_array_setref (params, i, pa [i]);
4843 * @klass: the class of the object that we want to create
4845 * Returns: a newly created object whose definition is
4846 * looked up using @klass. This will not invoke any constructors,
4847 * so the consumer of this routine has to invoke any constructors on
4848 * its own to initialize the object.
4850 * It returns NULL on failure.
4853 mono_object_new (MonoDomain *domain, MonoClass *klass)
4855 MONO_REQ_GC_UNSAFE_MODE;
4859 MonoObject * result = mono_object_new_checked (domain, klass, &error);
4861 mono_error_cleanup (&error);
4866 ves_icall_object_new (MonoDomain *domain, MonoClass *klass)
4868 MONO_REQ_GC_UNSAFE_MODE;
4872 MonoObject * result = mono_object_new_checked (domain, klass, &error);
4874 mono_error_set_pending_exception (&error);
4879 * mono_object_new_checked:
4880 * @klass: the class of the object that we want to create
4881 * @error: set on error
4883 * Returns: a newly created object whose definition is
4884 * looked up using @klass. This will not invoke any constructors,
4885 * so the consumer of this routine has to invoke any constructors on
4886 * its own to initialize the object.
4888 * It returns NULL on failure and sets @error.
4891 mono_object_new_checked (MonoDomain *domain, MonoClass *klass, MonoError *error)
4893 MONO_REQ_GC_UNSAFE_MODE;
4897 vtable = mono_class_vtable (domain, klass);
4898 g_assert (vtable); /* FIXME don't swallow the error */
4900 MonoObject *o = mono_object_new_specific_checked (vtable, error);
4905 * mono_object_new_pinned:
4907 * Same as mono_object_new, but the returned object will be pinned.
4908 * For SGEN, these objects will only be freed at appdomain unload.
4911 mono_object_new_pinned (MonoDomain *domain, MonoClass *klass, MonoError *error)
4913 MONO_REQ_GC_UNSAFE_MODE;
4917 mono_error_init (error);
4919 vtable = mono_class_vtable (domain, klass);
4920 g_assert (vtable); /* FIXME don't swallow the error */
4922 MonoObject *o = (MonoObject *)mono_gc_alloc_pinned_obj (vtable, mono_class_instance_size (klass));
4924 if (G_UNLIKELY (!o))
4925 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", mono_class_instance_size (klass));
4926 else if (G_UNLIKELY (vtable->klass->has_finalize))
4927 mono_object_register_finalizer (o, error);
4933 * mono_object_new_specific:
4934 * @vtable: the vtable of the object that we want to create
4936 * Returns: A newly created object with class and domain specified
4940 mono_object_new_specific (MonoVTable *vtable)
4943 MonoObject *o = mono_object_new_specific_checked (vtable, &error);
4944 mono_error_cleanup (&error);
4950 mono_object_new_specific_checked (MonoVTable *vtable, MonoError *error)
4952 MONO_REQ_GC_UNSAFE_MODE;
4956 mono_error_init (error);
4958 /* check for is_com_object for COM Interop */
4959 if (mono_vtable_is_remote (vtable) || mono_class_is_com_object (vtable->klass))
4962 MonoMethod *im = vtable->domain->create_proxy_for_type_method;
4965 MonoClass *klass = mono_class_get_activation_services_class ();
4968 mono_class_init (klass);
4970 im = mono_class_get_method_from_name (klass, "CreateProxyForType", 1);
4972 mono_error_set_not_supported (error, "Linked away.");
4975 vtable->domain->create_proxy_for_type_method = im;
4978 pa [0] = mono_type_get_object_checked (mono_domain_get (), &vtable->klass->byval_arg, error);
4979 if (!mono_error_ok (error))
4982 o = mono_runtime_invoke_checked (im, NULL, pa, error);
4983 if (!mono_error_ok (error))
4990 return mono_object_new_alloc_specific_checked (vtable, error);
4994 ves_icall_object_new_specific (MonoVTable *vtable)
4997 MonoObject *o = mono_object_new_specific_checked (vtable, &error);
4998 mono_error_set_pending_exception (&error);
5004 * mono_object_new_alloc_specific:
5005 * @vtable: virtual table for the object.
5007 * This function allocates a new `MonoObject` with the type derived
5008 * from the @vtable information. If the class of this object has a
5009 * finalizer, then the object will be tracked for finalization.
5011 * This method might raise an exception on errors. Use the
5012 * `mono_object_new_fast_checked` method if you want to manually raise
5015 * Returns: the allocated object.
5018 mono_object_new_alloc_specific (MonoVTable *vtable)
5021 MonoObject *o = mono_object_new_alloc_specific_checked (vtable, &error);
5022 mono_error_cleanup (&error);
5028 * mono_object_new_alloc_specific_checked:
5029 * @vtable: virtual table for the object.
5030 * @error: holds the error return value.
5032 * This function allocates a new `MonoObject` with the type derived
5033 * from the @vtable information. If the class of this object has a
5034 * finalizer, then the object will be tracked for finalization.
5036 * If there is not enough memory, the @error parameter will be set
5037 * and will contain a user-visible message with the amount of bytes
5038 * that were requested.
5040 * Returns: the allocated object, or NULL if there is not enough memory
5044 mono_object_new_alloc_specific_checked (MonoVTable *vtable, MonoError *error)
5046 MONO_REQ_GC_UNSAFE_MODE;
5050 mono_error_init (error);
5052 o = (MonoObject *)mono_gc_alloc_obj (vtable, vtable->klass->instance_size);
5054 if (G_UNLIKELY (!o))
5055 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", vtable->klass->instance_size);
5056 else if (G_UNLIKELY (vtable->klass->has_finalize))
5057 mono_object_register_finalizer (o, error);
5063 * mono_object_new_fast:
5064 * @vtable: virtual table for the object.
5066 * This function allocates a new `MonoObject` with the type derived
5067 * from the @vtable information. The returned object is not tracked
5068 * for finalization. If your object implements a finalizer, you should
5069 * use `mono_object_new_alloc_specific` instead.
5071 * This method might raise an exception on errors. Use the
5072 * `mono_object_new_fast_checked` method if you want to manually raise
5075 * Returns: the allocated object.
5078 mono_object_new_fast (MonoVTable *vtable)
5081 MonoObject *o = mono_object_new_fast_checked (vtable, &error);
5082 mono_error_cleanup (&error);
5088 * mono_object_new_fast_checked:
5089 * @vtable: virtual table for the object.
5090 * @error: holds the error return value.
5092 * This function allocates a new `MonoObject` with the type derived
5093 * from the @vtable information. The returned object is not tracked
5094 * for finalization. If your object implements a finalizer, you should
5095 * use `mono_object_new_alloc_specific_checked` instead.
5097 * If there is not enough memory, the @error parameter will be set
5098 * and will contain a user-visible message with the amount of bytes
5099 * that were requested.
5101 * Returns: the allocated object, or NULL if there is not enough memory
5105 mono_object_new_fast_checked (MonoVTable *vtable, MonoError *error)
5107 MONO_REQ_GC_UNSAFE_MODE;
5111 mono_error_init (error);
5113 o = mono_gc_alloc_obj (vtable, vtable->klass->instance_size);
5115 if (G_UNLIKELY (!o))
5116 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", vtable->klass->instance_size);
5122 ves_icall_object_new_fast (MonoVTable *vtable)
5125 MonoObject *o = mono_object_new_fast_checked (vtable, &error);
5126 mono_error_set_pending_exception (&error);
5132 mono_object_new_mature (MonoVTable *vtable, MonoError *error)
5134 MONO_REQ_GC_UNSAFE_MODE;
5138 mono_error_init (error);
5140 o = mono_gc_alloc_mature (vtable, vtable->klass->instance_size);
5142 if (G_UNLIKELY (!o))
5143 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", vtable->klass->instance_size);
5144 else if (G_UNLIKELY (vtable->klass->has_finalize))
5145 mono_object_register_finalizer (o, error);
5151 * mono_class_get_allocation_ftn:
5153 * @for_box: the object will be used for boxing
5154 * @pass_size_in_words:
5156 * Return the allocation function appropriate for the given class.
5160 mono_class_get_allocation_ftn (MonoVTable *vtable, gboolean for_box, gboolean *pass_size_in_words)
5162 MONO_REQ_GC_NEUTRAL_MODE;
5164 *pass_size_in_words = FALSE;
5166 if (mono_class_has_finalizer (vtable->klass) || mono_class_is_marshalbyref (vtable->klass) || (mono_profiler_get_events () & MONO_PROFILE_ALLOCATIONS))
5167 return ves_icall_object_new_specific;
5169 if (vtable->gc_descr != MONO_GC_DESCRIPTOR_NULL) {
5171 return ves_icall_object_new_fast;
5174 * FIXME: This is actually slower than ves_icall_object_new_fast, because
5175 * of the overhead of parameter passing.
5178 *pass_size_in_words = TRUE;
5179 #ifdef GC_REDIRECT_TO_LOCAL
5180 return GC_local_gcj_fast_malloc;
5182 return GC_gcj_fast_malloc;
5187 return ves_icall_object_new_specific;
5191 * mono_object_new_from_token:
5192 * @image: Context where the type_token is hosted
5193 * @token: a token of the type that we want to create
5195 * Returns: A newly created object whose definition is
5196 * looked up using @token in the @image image
5199 mono_object_new_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
5201 MONO_REQ_GC_UNSAFE_MODE;
5207 klass = mono_class_get_checked (image, token, &error);
5208 mono_error_assert_ok (&error);
5210 result = mono_object_new_checked (domain, klass, &error);
5212 mono_error_cleanup (&error);
5219 * mono_object_clone:
5220 * @obj: the object to clone
5222 * Returns: A newly created object who is a shallow copy of @obj
5225 mono_object_clone (MonoObject *obj)
5228 MonoObject *o = mono_object_clone_checked (obj, &error);
5229 mono_error_cleanup (&error);
5235 mono_object_clone_checked (MonoObject *obj, MonoError *error)
5237 MONO_REQ_GC_UNSAFE_MODE;
5242 mono_error_init (error);
5244 size = obj->vtable->klass->instance_size;
5246 if (obj->vtable->klass->rank)
5247 return (MonoObject*)mono_array_clone_checked ((MonoArray*)obj, error);
5249 o = (MonoObject *)mono_gc_alloc_obj (obj->vtable, size);
5251 if (G_UNLIKELY (!o)) {
5252 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
5256 /* If the object doesn't contain references this will do a simple memmove. */
5257 mono_gc_wbarrier_object_copy (o, obj);
5259 if (obj->vtable->klass->has_finalize)
5260 mono_object_register_finalizer (o, error);
5265 * mono_array_full_copy:
5266 * @src: source array to copy
5267 * @dest: destination array
5269 * Copies the content of one array to another with exactly the same type and size.
5272 mono_array_full_copy (MonoArray *src, MonoArray *dest)
5274 MONO_REQ_GC_UNSAFE_MODE;
5277 MonoClass *klass = src->obj.vtable->klass;
5279 g_assert (klass == dest->obj.vtable->klass);
5281 size = mono_array_length (src);
5282 g_assert (size == mono_array_length (dest));
5283 size *= mono_array_element_size (klass);
5285 if (klass->element_class->valuetype) {
5286 if (klass->element_class->has_references)
5287 mono_value_copy_array (dest, 0, mono_array_addr_with_size_fast (src, 0, 0), mono_array_length (src));
5289 mono_gc_memmove_atomic (&dest->vector, &src->vector, size);
5291 mono_array_memcpy_refs (dest, 0, src, 0, mono_array_length (src));
5294 mono_gc_memmove_atomic (&dest->vector, &src->vector, size);
5299 * mono_array_clone_in_domain:
5300 * @domain: the domain in which the array will be cloned into
5301 * @array: the array to clone
5302 * @error: set on error
5304 * This routine returns a copy of the array that is hosted on the
5305 * specified MonoDomain. On failure returns NULL and sets @error.
5308 mono_array_clone_in_domain (MonoDomain *domain, MonoArray *array, MonoError *error)
5310 MONO_REQ_GC_UNSAFE_MODE;
5315 MonoClass *klass = array->obj.vtable->klass;
5317 mono_error_init (error);
5319 if (array->bounds == NULL) {
5320 size = mono_array_length (array);
5321 o = mono_array_new_full_checked (domain, klass, &size, NULL, error);
5322 return_val_if_nok (error, NULL);
5324 size *= mono_array_element_size (klass);
5326 if (klass->element_class->valuetype) {
5327 if (klass->element_class->has_references)
5328 mono_value_copy_array (o, 0, mono_array_addr_with_size_fast (array, 0, 0), mono_array_length (array));
5330 mono_gc_memmove_atomic (&o->vector, &array->vector, size);
5332 mono_array_memcpy_refs (o, 0, array, 0, mono_array_length (array));
5335 mono_gc_memmove_atomic (&o->vector, &array->vector, size);
5340 sizes = (uintptr_t *)alloca (klass->rank * sizeof(intptr_t) * 2);
5341 size = mono_array_element_size (klass);
5342 for (i = 0; i < klass->rank; ++i) {
5343 sizes [i] = array->bounds [i].length;
5344 size *= array->bounds [i].length;
5345 sizes [i + klass->rank] = array->bounds [i].lower_bound;
5347 o = mono_array_new_full_checked (domain, klass, sizes, (intptr_t*)sizes + klass->rank, error);
5348 return_val_if_nok (error, NULL);
5350 if (klass->element_class->valuetype) {
5351 if (klass->element_class->has_references)
5352 mono_value_copy_array (o, 0, mono_array_addr_with_size_fast (array, 0, 0), mono_array_length (array));
5354 mono_gc_memmove_atomic (&o->vector, &array->vector, size);
5356 mono_array_memcpy_refs (o, 0, array, 0, mono_array_length (array));
5359 mono_gc_memmove_atomic (&o->vector, &array->vector, size);
5367 * @array: the array to clone
5369 * Returns: A newly created array who is a shallow copy of @array
5372 mono_array_clone (MonoArray *array)
5374 MONO_REQ_GC_UNSAFE_MODE;
5377 MonoArray *result = mono_array_clone_checked (array, &error);
5378 mono_error_cleanup (&error);
5383 * mono_array_clone_checked:
5384 * @array: the array to clone
5385 * @error: set on error
5387 * Returns: A newly created array who is a shallow copy of @array. On
5388 * failure returns NULL and sets @error.
5391 mono_array_clone_checked (MonoArray *array, MonoError *error)
5394 MONO_REQ_GC_UNSAFE_MODE;
5395 return mono_array_clone_in_domain (((MonoObject *)array)->vtable->domain, array, error);
5398 /* helper macros to check for overflow when calculating the size of arrays */
5399 #ifdef MONO_BIG_ARRAYS
5400 #define MYGUINT64_MAX 0x0000FFFFFFFFFFFFUL
5401 #define MYGUINT_MAX MYGUINT64_MAX
5402 #define CHECK_ADD_OVERFLOW_UN(a,b) \
5403 (G_UNLIKELY ((guint64)(MYGUINT64_MAX) - (guint64)(b) < (guint64)(a)))
5404 #define CHECK_MUL_OVERFLOW_UN(a,b) \
5405 (G_UNLIKELY (((guint64)(a) > 0) && ((guint64)(b) > 0) && \
5406 ((guint64)(b) > ((MYGUINT64_MAX) / (guint64)(a)))))
5408 #define MYGUINT32_MAX 4294967295U
5409 #define MYGUINT_MAX MYGUINT32_MAX
5410 #define CHECK_ADD_OVERFLOW_UN(a,b) \
5411 (G_UNLIKELY ((guint32)(MYGUINT32_MAX) - (guint32)(b) < (guint32)(a)))
5412 #define CHECK_MUL_OVERFLOW_UN(a,b) \
5413 (G_UNLIKELY (((guint32)(a) > 0) && ((guint32)(b) > 0) && \
5414 ((guint32)(b) > ((MYGUINT32_MAX) / (guint32)(a)))))
5418 mono_array_calc_byte_len (MonoClass *klass, uintptr_t len, uintptr_t *res)
5420 MONO_REQ_GC_NEUTRAL_MODE;
5424 byte_len = mono_array_element_size (klass);
5425 if (CHECK_MUL_OVERFLOW_UN (byte_len, len))
5428 if (CHECK_ADD_OVERFLOW_UN (byte_len, MONO_SIZEOF_MONO_ARRAY))
5430 byte_len += MONO_SIZEOF_MONO_ARRAY;
5438 * mono_array_new_full:
5439 * @domain: domain where the object is created
5440 * @array_class: array class
5441 * @lengths: lengths for each dimension in the array
5442 * @lower_bounds: lower bounds for each dimension in the array (may be NULL)
5444 * This routine creates a new array objects with the given dimensions,
5445 * lower bounds and type.
5448 mono_array_new_full (MonoDomain *domain, MonoClass *array_class, uintptr_t *lengths, intptr_t *lower_bounds)
5451 MonoArray *array = mono_array_new_full_checked (domain, array_class, lengths, lower_bounds, &error);
5452 mono_error_cleanup (&error);
5458 mono_array_new_full_checked (MonoDomain *domain, MonoClass *array_class, uintptr_t *lengths, intptr_t *lower_bounds, MonoError *error)
5460 MONO_REQ_GC_UNSAFE_MODE;
5462 uintptr_t byte_len = 0, len, bounds_size;
5465 MonoArrayBounds *bounds;
5469 mono_error_init (error);
5471 if (!array_class->inited)
5472 mono_class_init (array_class);
5476 /* A single dimensional array with a 0 lower bound is the same as an szarray */
5477 if (array_class->rank == 1 && ((array_class->byval_arg.type == MONO_TYPE_SZARRAY) || (lower_bounds && lower_bounds [0] == 0))) {
5479 if (len > MONO_ARRAY_MAX_INDEX) {
5480 mono_error_set_generic_error (error, "System", "OverflowException", "");
5485 bounds_size = sizeof (MonoArrayBounds) * array_class->rank;
5487 for (i = 0; i < array_class->rank; ++i) {
5488 if (lengths [i] > MONO_ARRAY_MAX_INDEX) {
5489 mono_error_set_generic_error (error, "System", "OverflowException", "");
5492 if (CHECK_MUL_OVERFLOW_UN (len, lengths [i])) {
5493 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", MONO_ARRAY_MAX_SIZE);
5500 if (!mono_array_calc_byte_len (array_class, len, &byte_len)) {
5501 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", MONO_ARRAY_MAX_SIZE);
5507 if (CHECK_ADD_OVERFLOW_UN (byte_len, 3)) {
5508 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", MONO_ARRAY_MAX_SIZE);
5511 byte_len = (byte_len + 3) & ~3;
5512 if (CHECK_ADD_OVERFLOW_UN (byte_len, bounds_size)) {
5513 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", MONO_ARRAY_MAX_SIZE);
5516 byte_len += bounds_size;
5519 * Following three lines almost taken from mono_object_new ():
5520 * they need to be kept in sync.
5522 vtable = mono_class_vtable_full (domain, array_class, error);
5523 return_val_if_nok (error, NULL);
5526 o = (MonoObject *)mono_gc_alloc_array (vtable, byte_len, len, bounds_size);
5528 o = (MonoObject *)mono_gc_alloc_vector (vtable, byte_len, len);
5530 if (G_UNLIKELY (!o)) {
5531 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", byte_len);
5535 array = (MonoArray*)o;
5537 bounds = array->bounds;
5540 for (i = 0; i < array_class->rank; ++i) {
5541 bounds [i].length = lengths [i];
5543 bounds [i].lower_bound = lower_bounds [i];
5552 * @domain: domain where the object is created
5553 * @eclass: element class
5554 * @n: number of array elements
5556 * This routine creates a new szarray with @n elements of type @eclass.
5559 mono_array_new (MonoDomain *domain, MonoClass *eclass, uintptr_t n)
5561 MONO_REQ_GC_UNSAFE_MODE;
5564 MonoArray *result = mono_array_new_checked (domain, eclass, n, &error);
5565 mono_error_cleanup (&error);
5570 * mono_array_new_checked:
5571 * @domain: domain where the object is created
5572 * @eclass: element class
5573 * @n: number of array elements
5574 * @error: set on error
5576 * This routine creates a new szarray with @n elements of type @eclass.
5577 * On failure returns NULL and sets @error.
5580 mono_array_new_checked (MonoDomain *domain, MonoClass *eclass, uintptr_t n, MonoError *error)
5584 mono_error_init (error);
5586 ac = mono_array_class_get (eclass, 1);
5589 MonoVTable *vtable = mono_class_vtable_full (domain, ac, error);
5590 return_val_if_nok (error, NULL);
5592 return mono_array_new_specific_checked (vtable, n, error);
5596 ves_icall_array_new (MonoDomain *domain, MonoClass *eclass, uintptr_t n)
5599 MonoArray *arr = mono_array_new_checked (domain, eclass, n, &error);
5600 mono_error_set_pending_exception (&error);
5606 * mono_array_new_specific:
5607 * @vtable: a vtable in the appropriate domain for an initialized class
5608 * @n: number of array elements
5610 * This routine is a fast alternative to mono_array_new() for code which
5611 * can be sure about the domain it operates in.
5614 mono_array_new_specific (MonoVTable *vtable, uintptr_t n)
5617 MonoArray *arr = mono_array_new_specific_checked (vtable, n, &error);
5618 mono_error_cleanup (&error);
5624 mono_array_new_specific_checked (MonoVTable *vtable, uintptr_t n, MonoError *error)
5626 MONO_REQ_GC_UNSAFE_MODE;
5631 mono_error_init (error);
5633 if (G_UNLIKELY (n > MONO_ARRAY_MAX_INDEX)) {
5634 mono_error_set_generic_error (error, "System", "OverflowException", "");
5638 if (!mono_array_calc_byte_len (vtable->klass, n, &byte_len)) {
5639 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", MONO_ARRAY_MAX_SIZE);
5642 o = (MonoObject *)mono_gc_alloc_vector (vtable, byte_len, n);
5644 if (G_UNLIKELY (!o)) {
5645 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", byte_len);
5649 return (MonoArray*)o;
5653 ves_icall_array_new_specific (MonoVTable *vtable, uintptr_t n)
5656 MonoArray *arr = mono_array_new_specific_checked (vtable, n, &error);
5657 mono_error_set_pending_exception (&error);
5663 * mono_string_new_utf16:
5664 * @text: a pointer to an utf16 string
5665 * @len: the length of the string
5667 * Returns: A newly created string object which contains @text.
5670 mono_string_new_utf16 (MonoDomain *domain, const guint16 *text, gint32 len)
5672 MONO_REQ_GC_UNSAFE_MODE;
5675 MonoString *res = NULL;
5676 res = mono_string_new_utf16_checked (domain, text, len, &error);
5677 mono_error_cleanup (&error);
5683 * mono_string_new_utf16_checked:
5684 * @text: a pointer to an utf16 string
5685 * @len: the length of the string
5686 * @error: written on error.
5688 * Returns: A newly created string object which contains @text.
5689 * On error, returns NULL and sets @error.
5692 mono_string_new_utf16_checked (MonoDomain *domain, const guint16 *text, gint32 len, MonoError *error)
5694 MONO_REQ_GC_UNSAFE_MODE;
5698 mono_error_init (error);
5700 s = mono_string_new_size_checked (domain, len, error);
5702 memcpy (mono_string_chars (s), text, len * 2);
5708 * mono_string_new_utf32:
5709 * @text: a pointer to an utf32 string
5710 * @len: the length of the string
5711 * @error: set on failure.
5713 * Returns: A newly created string object which contains @text. On failure returns NULL and sets @error.
5716 mono_string_new_utf32_checked (MonoDomain *domain, const mono_unichar4 *text, gint32 len, MonoError *error)
5718 MONO_REQ_GC_UNSAFE_MODE;
5721 mono_unichar2 *utf16_output = NULL;
5722 gint32 utf16_len = 0;
5723 GError *gerror = NULL;
5724 glong items_written;
5726 mono_error_init (error);
5727 utf16_output = g_ucs4_to_utf16 (text, len, NULL, &items_written, &gerror);
5730 g_error_free (gerror);
5732 while (utf16_output [utf16_len]) utf16_len++;
5734 s = mono_string_new_size_checked (domain, utf16_len, error);
5735 return_val_if_nok (error, NULL);
5737 memcpy (mono_string_chars (s), utf16_output, utf16_len * 2);
5739 g_free (utf16_output);
5745 * mono_string_new_utf32:
5746 * @text: a pointer to an utf32 string
5747 * @len: the length of the string
5749 * Returns: A newly created string object which contains @text.
5752 mono_string_new_utf32 (MonoDomain *domain, const mono_unichar4 *text, gint32 len)
5755 MonoString *result = mono_string_new_utf32_checked (domain, text, len, &error);
5756 mono_error_cleanup (&error);
5761 * mono_string_new_size:
5762 * @text: a pointer to an utf16 string
5763 * @len: the length of the string
5765 * Returns: A newly created string object of @len
5768 mono_string_new_size (MonoDomain *domain, gint32 len)
5771 MonoString *str = mono_string_new_size_checked (domain, len, &error);
5772 mono_error_cleanup (&error);
5778 mono_string_new_size_checked (MonoDomain *domain, gint32 len, MonoError *error)
5780 MONO_REQ_GC_UNSAFE_MODE;
5786 mono_error_init (error);
5788 /* check for overflow */
5789 if (len < 0 || len > ((SIZE_MAX - G_STRUCT_OFFSET (MonoString, chars) - 8) / 2)) {
5790 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", -1);
5794 size = (G_STRUCT_OFFSET (MonoString, chars) + (((size_t)len + 1) * 2));
5795 g_assert (size > 0);
5797 vtable = mono_class_vtable (domain, mono_defaults.string_class);
5800 s = (MonoString *)mono_gc_alloc_string (vtable, size, len);
5802 if (G_UNLIKELY (!s)) {
5803 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
5811 * mono_string_new_len:
5812 * @text: a pointer to an utf8 string
5813 * @length: number of bytes in @text to consider
5815 * Returns: A newly created string object which contains @text.
5818 mono_string_new_len (MonoDomain *domain, const char *text, guint length)
5820 MONO_REQ_GC_UNSAFE_MODE;
5823 MonoString *result = mono_string_new_len_checked (domain, text, length, &error);
5824 mono_error_cleanup (&error);
5829 * mono_string_new_len_checked:
5830 * @text: a pointer to an utf8 string
5831 * @length: number of bytes in @text to consider
5832 * @error: set on error
5834 * Returns: A newly created string object which contains @text. On
5835 * failure returns NULL and sets @error.
5838 mono_string_new_len_checked (MonoDomain *domain, const char *text, guint length, MonoError *error)
5840 MONO_REQ_GC_UNSAFE_MODE;
5842 mono_error_init (error);
5844 GError *eg_error = NULL;
5845 MonoString *o = NULL;
5847 glong items_written;
5849 ut = eg_utf8_to_utf16_with_nuls (text, length, NULL, &items_written, &eg_error);
5852 o = mono_string_new_utf16_checked (domain, ut, items_written, error);
5854 g_error_free (eg_error);
5863 * @text: a pointer to an utf8 string
5865 * Returns: A newly created string object which contains @text.
5867 * This function asserts if it cannot allocate a new string.
5869 * @deprecated Use mono_string_new_checked in new code.
5872 mono_string_new (MonoDomain *domain, const char *text)
5875 MonoString *res = NULL;
5876 res = mono_string_new_checked (domain, text, &error);
5877 mono_error_assert_ok (&error);
5882 * mono_string_new_checked:
5883 * @text: a pointer to an utf8 string
5884 * @merror: set on error
5886 * Returns: A newly created string object which contains @text.
5887 * On error returns NULL and sets @merror.
5890 mono_string_new_checked (MonoDomain *domain, const char *text, MonoError *error)
5892 MONO_REQ_GC_UNSAFE_MODE;
5894 GError *eg_error = NULL;
5895 MonoString *o = NULL;
5897 glong items_written;
5900 mono_error_init (error);
5904 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &eg_error);
5907 o = mono_string_new_utf16_checked (domain, ut, items_written, error);
5909 g_error_free (eg_error);
5913 /*FIXME g_utf8_get_char, g_utf8_next_char and g_utf8_validate are not part of eglib.*/
5918 MonoString *o = NULL;
5920 if (!g_utf8_validate (text, -1, &end)) {
5921 mono_error_set_argument (error, "text", "Not a valid utf8 string");
5925 len = g_utf8_strlen (text, -1);
5926 o = mono_string_new_size_checked (domain, len, error);
5929 str = mono_string_chars (o);
5931 while (text < end) {
5932 *str++ = g_utf8_get_char (text);
5933 text = g_utf8_next_char (text);
5942 * mono_string_new_wrapper:
5943 * @text: pointer to utf8 characters.
5945 * Helper function to create a string object from @text in the current domain.
5948 mono_string_new_wrapper (const char *text)
5950 MONO_REQ_GC_UNSAFE_MODE;
5952 MonoDomain *domain = mono_domain_get ();
5955 return mono_string_new (domain, text);
5962 * @class: the class of the value
5963 * @value: a pointer to the unboxed data
5965 * Returns: A newly created object which contains @value.
5968 mono_value_box (MonoDomain *domain, MonoClass *klass, gpointer value)
5971 MonoObject *result = mono_value_box_checked (domain, klass, value, &error);
5972 mono_error_cleanup (&error);
5977 * mono_value_box_checked:
5978 * @domain: the domain of the new object
5979 * @class: the class of the value
5980 * @value: a pointer to the unboxed data
5981 * @error: set on error
5983 * Returns: A newly created object which contains @value. On failure
5984 * returns NULL and sets @error.
5987 mono_value_box_checked (MonoDomain *domain, MonoClass *klass, gpointer value, MonoError *error)
5989 MONO_REQ_GC_UNSAFE_MODE;
5994 mono_error_init (error);
5996 g_assert (klass->valuetype);
5997 if (mono_class_is_nullable (klass))
5998 return mono_nullable_box ((guint8 *)value, klass, error);
6000 vtable = mono_class_vtable (domain, klass);
6003 size = mono_class_instance_size (klass);
6004 res = mono_object_new_alloc_specific_checked (vtable, error);
6005 return_val_if_nok (error, NULL);
6007 size = size - sizeof (MonoObject);
6010 g_assert (size == mono_class_value_size (klass, NULL));
6011 mono_gc_wbarrier_value_copy ((char *)res + sizeof (MonoObject), value, 1, klass);
6013 #if NO_UNALIGNED_ACCESS
6014 mono_gc_memmove_atomic ((char *)res + sizeof (MonoObject), value, size);
6018 *((guint8 *) res + sizeof (MonoObject)) = *(guint8 *) value;
6021 *(guint16 *)((guint8 *) res + sizeof (MonoObject)) = *(guint16 *) value;
6024 *(guint32 *)((guint8 *) res + sizeof (MonoObject)) = *(guint32 *) value;
6027 *(guint64 *)((guint8 *) res + sizeof (MonoObject)) = *(guint64 *) value;
6030 mono_gc_memmove_atomic ((char *)res + sizeof (MonoObject), value, size);
6034 if (klass->has_finalize) {
6035 mono_object_register_finalizer (res, error);
6036 return_val_if_nok (error, NULL);
6043 * @dest: destination pointer
6044 * @src: source pointer
6045 * @klass: a valuetype class
6047 * Copy a valuetype from @src to @dest. This function must be used
6048 * when @klass contains references fields.
6051 mono_value_copy (gpointer dest, gpointer src, MonoClass *klass)
6053 MONO_REQ_GC_UNSAFE_MODE;
6055 mono_gc_wbarrier_value_copy (dest, src, 1, klass);
6059 * mono_value_copy_array:
6060 * @dest: destination array
6061 * @dest_idx: index in the @dest array
6062 * @src: source pointer
6063 * @count: number of items
6065 * Copy @count valuetype items from @src to the array @dest at index @dest_idx.
6066 * This function must be used when @klass contains references fields.
6067 * Overlap is handled.
6070 mono_value_copy_array (MonoArray *dest, int dest_idx, gpointer src, int count)
6072 MONO_REQ_GC_UNSAFE_MODE;
6074 int size = mono_array_element_size (dest->obj.vtable->klass);
6075 char *d = mono_array_addr_with_size_fast (dest, size, dest_idx);
6076 g_assert (size == mono_class_value_size (mono_object_class (dest)->element_class, NULL));
6077 mono_gc_wbarrier_value_copy (d, src, count, mono_object_class (dest)->element_class);
6081 * mono_object_get_domain:
6082 * @obj: object to query
6084 * Returns: the MonoDomain where the object is hosted
6087 mono_object_get_domain (MonoObject *obj)
6089 MONO_REQ_GC_UNSAFE_MODE;
6091 return mono_object_domain (obj);
6095 * mono_object_get_class:
6096 * @obj: object to query
6098 * Use this function to obtain the `MonoClass*` for a given `MonoObject`.
6100 * Returns: the MonoClass of the object.
6103 mono_object_get_class (MonoObject *obj)
6105 MONO_REQ_GC_UNSAFE_MODE;
6107 return mono_object_class (obj);
6110 * mono_object_get_size:
6111 * @o: object to query
6113 * Returns: the size, in bytes, of @o
6116 mono_object_get_size (MonoObject* o)
6118 MONO_REQ_GC_UNSAFE_MODE;
6120 MonoClass* klass = mono_object_class (o);
6121 if (klass == mono_defaults.string_class) {
6122 return sizeof (MonoString) + 2 * mono_string_length ((MonoString*) o) + 2;
6123 } else if (o->vtable->rank) {
6124 MonoArray *array = (MonoArray*)o;
6125 size_t size = MONO_SIZEOF_MONO_ARRAY + mono_array_element_size (klass) * mono_array_length (array);
6126 if (array->bounds) {
6129 size += sizeof (MonoArrayBounds) * o->vtable->rank;
6133 return mono_class_instance_size (klass);
6138 * mono_object_unbox:
6139 * @obj: object to unbox
6141 * Returns: a pointer to the start of the valuetype boxed in this
6144 * This method will assert if the object passed is not a valuetype.
6147 mono_object_unbox (MonoObject *obj)
6149 MONO_REQ_GC_UNSAFE_MODE;
6151 /* add assert for valuetypes? */
6152 g_assert (obj->vtable->klass->valuetype);
6153 return ((char*)obj) + sizeof (MonoObject);
6157 * mono_object_isinst:
6159 * @klass: a pointer to a class
6161 * Returns: @obj if @obj is derived from @klass or NULL otherwise.
6164 mono_object_isinst (MonoObject *obj, MonoClass *klass)
6166 MONO_REQ_GC_UNSAFE_MODE;
6169 MonoObject *result = mono_object_isinst_checked (obj, klass, &error);
6170 mono_error_cleanup (&error);
6176 * mono_object_isinst_checked:
6178 * @klass: a pointer to a class
6179 * @error: set on error
6181 * Returns: @obj if @obj is derived from @klass or NULL if it isn't.
6182 * On failure returns NULL and sets @error.
6185 mono_object_isinst_checked (MonoObject *obj, MonoClass *klass, MonoError *error)
6187 MONO_REQ_GC_UNSAFE_MODE;
6189 mono_error_init (error);
6191 MonoObject *result = NULL;
6194 mono_class_init (klass);
6196 if (mono_class_is_marshalbyref (klass) || (klass->flags & TYPE_ATTRIBUTE_INTERFACE)) {
6197 result = mono_object_isinst_mbyref_checked (obj, klass, error);
6204 return mono_class_is_assignable_from (klass, obj->vtable->klass) ? obj : NULL;
6208 mono_object_isinst_mbyref (MonoObject *obj, MonoClass *klass)
6210 MONO_REQ_GC_UNSAFE_MODE;
6213 MonoObject *result = mono_object_isinst_mbyref_checked (obj, klass, &error);
6214 mono_error_cleanup (&error); /* FIXME better API that doesn't swallow the error */
6219 mono_object_isinst_mbyref_checked (MonoObject *obj, MonoClass *klass, MonoError *error)
6221 MONO_REQ_GC_UNSAFE_MODE;
6225 mono_error_init (error);
6232 if (klass->flags & TYPE_ATTRIBUTE_INTERFACE) {
6233 if (MONO_VTABLE_IMPLEMENTS_INTERFACE (vt, klass->interface_id)) {
6237 /*If the above check fails we are in the slow path of possibly raising an exception. So it's ok to it this way.*/
6238 if (mono_class_has_variant_generic_params (klass) && mono_class_is_assignable_from (klass, obj->vtable->klass))
6241 MonoClass *oklass = vt->klass;
6242 if (mono_class_is_transparent_proxy (oklass))
6243 oklass = ((MonoTransparentProxy *)obj)->remote_class->proxy_class;
6245 mono_class_setup_supertypes (klass);
6246 if ((oklass->idepth >= klass->idepth) && (oklass->supertypes [klass->idepth - 1] == klass))
6249 #ifndef DISABLE_REMOTING
6250 if (vt->klass == mono_defaults.transparent_proxy_class && ((MonoTransparentProxy *)obj)->custom_type_info)
6252 MonoDomain *domain = mono_domain_get ();
6254 MonoObject *rp = (MonoObject *)((MonoTransparentProxy *)obj)->rp;
6255 MonoClass *rpklass = mono_defaults.iremotingtypeinfo_class;
6256 MonoMethod *im = NULL;
6259 im = mono_class_get_method_from_name (rpklass, "CanCastTo", -1);
6261 mono_error_set_not_supported (error, "Linked away.");
6264 im = mono_object_get_virtual_method (rp, im);
6267 pa [0] = mono_type_get_object_checked (domain, &klass->byval_arg, error);
6268 return_val_if_nok (error, NULL);
6271 res = mono_runtime_invoke_checked (im, rp, pa, error);
6272 return_val_if_nok (error, NULL);
6274 if (*(MonoBoolean *) mono_object_unbox(res)) {
6275 /* Update the vtable of the remote type, so it can safely cast to this new type */
6276 mono_upgrade_remote_class (domain, obj, klass);
6280 #endif /* DISABLE_REMOTING */
6285 * mono_object_castclass_mbyref:
6287 * @klass: a pointer to a class
6289 * Returns: @obj if @obj is derived from @klass, returns NULL otherwise.
6292 mono_object_castclass_mbyref (MonoObject *obj, MonoClass *klass)
6294 MONO_REQ_GC_UNSAFE_MODE;
6297 if (!obj) return NULL;
6298 if (mono_object_isinst_mbyref_checked (obj, klass, &error)) return obj;
6299 mono_error_cleanup (&error);
6304 MonoDomain *orig_domain;
6310 str_lookup (MonoDomain *domain, gpointer user_data)
6312 MONO_REQ_GC_UNSAFE_MODE;
6314 LDStrInfo *info = (LDStrInfo *)user_data;
6315 if (info->res || domain == info->orig_domain)
6317 info->res = (MonoString *)mono_g_hash_table_lookup (domain->ldstr_table, info->ins);
6321 mono_string_get_pinned (MonoString *str, MonoError *error)
6323 MONO_REQ_GC_UNSAFE_MODE;
6325 mono_error_init (error);
6327 /* We only need to make a pinned version of a string if this is a moving GC */
6328 if (!mono_gc_is_moving ())
6332 size = sizeof (MonoString) + 2 * (mono_string_length (str) + 1);
6333 news = (MonoString *)mono_gc_alloc_pinned_obj (((MonoObject*)str)->vtable, size);
6335 memcpy (mono_string_chars (news), mono_string_chars (str), mono_string_length (str) * 2);
6336 news->length = mono_string_length (str);
6338 mono_error_set_out_of_memory (error, "Could not allocate %i bytes", size);
6344 mono_string_is_interned_lookup (MonoString *str, int insert, MonoError *error)
6346 MONO_REQ_GC_UNSAFE_MODE;
6348 MonoGHashTable *ldstr_table;
6349 MonoString *s, *res;
6352 mono_error_init (error);
6354 domain = ((MonoObject *)str)->vtable->domain;
6355 ldstr_table = domain->ldstr_table;
6357 res = (MonoString *)mono_g_hash_table_lookup (ldstr_table, str);
6363 /* Allocate outside the lock */
6365 s = mono_string_get_pinned (str, error);
6366 return_val_if_nok (error, NULL);
6369 res = (MonoString *)mono_g_hash_table_lookup (ldstr_table, str);
6374 mono_g_hash_table_insert (ldstr_table, s, s);
6379 LDStrInfo ldstr_info;
6380 ldstr_info.orig_domain = domain;
6381 ldstr_info.ins = str;
6382 ldstr_info.res = NULL;
6384 mono_domain_foreach (str_lookup, &ldstr_info);
6385 if (ldstr_info.res) {
6387 * the string was already interned in some other domain:
6388 * intern it in the current one as well.
6390 mono_g_hash_table_insert (ldstr_table, str, str);
6400 * mono_string_is_interned:
6401 * @o: String to probe
6403 * Returns whether the string has been interned.
6406 mono_string_is_interned (MonoString *o)
6409 MonoString *result = mono_string_is_interned_lookup (o, FALSE, &error);
6410 /* This function does not fail. */
6411 mono_error_assert_ok (&error);
6416 * mono_string_intern:
6417 * @o: String to intern
6419 * Interns the string passed.
6420 * Returns: The interned string.
6423 mono_string_intern (MonoString *str)
6426 MonoString *result = mono_string_intern_checked (str, &error);
6427 mono_error_assert_ok (&error);
6432 * mono_string_intern_checked:
6433 * @o: String to intern
6434 * @error: set on error.
6436 * Interns the string passed.
6437 * Returns: The interned string. On failure returns NULL and sets @error
6440 mono_string_intern_checked (MonoString *str, MonoError *error)
6442 MONO_REQ_GC_UNSAFE_MODE;
6444 mono_error_init (error);
6446 return mono_string_is_interned_lookup (str, TRUE, error);
6451 * @domain: the domain where the string will be used.
6452 * @image: a metadata context
6453 * @idx: index into the user string table.
6455 * Implementation for the ldstr opcode.
6456 * Returns: a loaded string from the @image/@idx combination.
6459 mono_ldstr (MonoDomain *domain, MonoImage *image, guint32 idx)
6461 MONO_REQ_GC_UNSAFE_MODE;
6464 if (image->dynamic) {
6465 MonoString *str = (MonoString *)mono_lookup_dynamic_token (image, MONO_TOKEN_STRING | idx, NULL, &error);
6466 mono_error_raise_exception (&error); /* FIXME don't raise here */
6469 if (!mono_verifier_verify_string_signature (image, idx, NULL))
6470 return NULL; /*FIXME we should probably be raising an exception here*/
6471 MonoString *str = mono_ldstr_metadata_sig (domain, mono_metadata_user_string (image, idx), &error);
6472 mono_error_raise_exception (&error); /* FIXME don't raise here */
6478 * mono_ldstr_metadata_sig
6479 * @domain: the domain for the string
6480 * @sig: the signature of a metadata string
6481 * @error: set on error
6483 * Returns: a MonoString for a string stored in the metadata. On
6484 * failure returns NULL and sets @error.
6487 mono_ldstr_metadata_sig (MonoDomain *domain, const char* sig, MonoError *error)
6489 MONO_REQ_GC_UNSAFE_MODE;
6491 mono_error_init (error);
6492 const char *str = sig;
6493 MonoString *o, *interned;
6496 len2 = mono_metadata_decode_blob_size (str, &str);
6499 o = mono_string_new_utf16_checked (domain, (guint16*)str, len2, error);
6500 return_val_if_nok (error, NULL);
6501 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
6504 guint16 *p2 = (guint16*)mono_string_chars (o);
6505 for (i = 0; i < len2; ++i) {
6506 *p2 = GUINT16_FROM_LE (*p2);
6512 interned = (MonoString *)mono_g_hash_table_lookup (domain->ldstr_table, o);
6515 return interned; /* o will get garbage collected */
6517 o = mono_string_get_pinned (o, error);
6520 interned = (MonoString *)mono_g_hash_table_lookup (domain->ldstr_table, o);
6522 mono_g_hash_table_insert (domain->ldstr_table, o, o);
6532 * mono_string_to_utf8:
6533 * @s: a System.String
6535 * Returns the UTF8 representation for @s.
6536 * The resulting buffer needs to be freed with mono_free().
6538 * @deprecated Use mono_string_to_utf8_checked to avoid having an exception arbritraly raised.
6541 mono_string_to_utf8 (MonoString *s)
6543 MONO_REQ_GC_UNSAFE_MODE;
6546 char *result = mono_string_to_utf8_checked (s, &error);
6548 if (!mono_error_ok (&error))
6549 mono_error_raise_exception (&error);
6554 * mono_string_to_utf8_checked:
6555 * @s: a System.String
6556 * @error: a MonoError.
6558 * Converts a MonoString to its UTF8 representation. May fail; check
6559 * @error to determine whether the conversion was successful.
6560 * The resulting buffer should be freed with mono_free().
6563 mono_string_to_utf8_checked (MonoString *s, MonoError *error)
6565 MONO_REQ_GC_UNSAFE_MODE;
6569 GError *gerror = NULL;
6571 mono_error_init (error);
6577 return g_strdup ("");
6579 as = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &written, &gerror);
6581 mono_error_set_argument (error, "string", "%s", gerror->message);
6582 g_error_free (gerror);
6585 /* g_utf16_to_utf8 may not be able to complete the convertion (e.g. NULL values were found, #335488) */
6586 if (s->length > written) {
6587 /* allocate the total length and copy the part of the string that has been converted */
6588 char *as2 = (char *)g_malloc0 (s->length);
6589 memcpy (as2, as, written);
6598 * mono_string_to_utf8_ignore:
6601 * Converts a MonoString to its UTF8 representation. Will ignore
6602 * invalid surrogate pairs.
6603 * The resulting buffer should be freed with mono_free().
6607 mono_string_to_utf8_ignore (MonoString *s)
6609 MONO_REQ_GC_UNSAFE_MODE;
6618 return g_strdup ("");
6620 as = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &written, NULL);
6622 /* g_utf16_to_utf8 may not be able to complete the convertion (e.g. NULL values were found, #335488) */
6623 if (s->length > written) {
6624 /* allocate the total length and copy the part of the string that has been converted */
6625 char *as2 = (char *)g_malloc0 (s->length);
6626 memcpy (as2, as, written);
6635 * mono_string_to_utf8_image_ignore:
6636 * @s: a System.String
6638 * Same as mono_string_to_utf8_ignore, but allocate the string from the image mempool.
6641 mono_string_to_utf8_image_ignore (MonoImage *image, MonoString *s)
6643 MONO_REQ_GC_UNSAFE_MODE;
6645 return mono_string_to_utf8_internal (NULL, image, s, TRUE, NULL);
6649 * mono_string_to_utf8_mp_ignore:
6650 * @s: a System.String
6652 * Same as mono_string_to_utf8_ignore, but allocate the string from a mempool.
6655 mono_string_to_utf8_mp_ignore (MonoMemPool *mp, MonoString *s)
6657 MONO_REQ_GC_UNSAFE_MODE;
6659 return mono_string_to_utf8_internal (mp, NULL, s, TRUE, NULL);
6664 * mono_string_to_utf16:
6667 * Return an null-terminated array of the utf-16 chars
6668 * contained in @s. The result must be freed with g_free().
6669 * This is a temporary helper until our string implementation
6670 * is reworked to always include the null terminating char.
6673 mono_string_to_utf16 (MonoString *s)
6675 MONO_REQ_GC_UNSAFE_MODE;
6682 as = (char *)g_malloc ((s->length * 2) + 2);
6683 as [(s->length * 2)] = '\0';
6684 as [(s->length * 2) + 1] = '\0';
6687 return (gunichar2 *)(as);
6690 memcpy (as, mono_string_chars(s), s->length * 2);
6691 return (gunichar2 *)(as);
6695 * mono_string_to_utf32:
6698 * Return an null-terminated array of the UTF-32 (UCS-4) chars
6699 * contained in @s. The result must be freed with g_free().
6702 mono_string_to_utf32 (MonoString *s)
6704 MONO_REQ_GC_UNSAFE_MODE;
6706 mono_unichar4 *utf32_output = NULL;
6707 GError *error = NULL;
6708 glong items_written;
6713 utf32_output = g_utf16_to_ucs4 (s->chars, s->length, NULL, &items_written, &error);
6716 g_error_free (error);
6718 return utf32_output;
6722 * mono_string_from_utf16:
6723 * @data: the UTF16 string (LPWSTR) to convert
6725 * Converts a NULL terminated UTF16 string (LPWSTR) to a MonoString.
6727 * Returns: a MonoString.
6730 mono_string_from_utf16 (gunichar2 *data)
6732 MONO_REQ_GC_UNSAFE_MODE;
6735 MonoString *res = NULL;
6736 MonoDomain *domain = mono_domain_get ();
6742 while (data [len]) len++;
6744 res = mono_string_new_utf16_checked (domain, data, len, &error);
6745 mono_error_raise_exception (&error); /* FIXME don't raise here */
6750 * mono_string_from_utf32:
6751 * @data: the UTF32 string (LPWSTR) to convert
6753 * Converts a UTF32 (UCS-4)to a MonoString.
6755 * Returns: a MonoString.
6758 mono_string_from_utf32 (mono_unichar4 *data)
6760 MONO_REQ_GC_UNSAFE_MODE;
6762 MonoString* result = NULL;
6763 mono_unichar2 *utf16_output = NULL;
6764 GError *error = NULL;
6765 glong items_written;
6771 while (data [len]) len++;
6773 utf16_output = g_ucs4_to_utf16 (data, len, NULL, &items_written, &error);
6776 g_error_free (error);
6778 result = mono_string_from_utf16 (utf16_output);
6779 g_free (utf16_output);
6784 mono_string_to_utf8_internal (MonoMemPool *mp, MonoImage *image, MonoString *s, gboolean ignore_error, MonoError *error)
6786 MONO_REQ_GC_UNSAFE_MODE;
6793 r = mono_string_to_utf8_ignore (s);
6795 r = mono_string_to_utf8_checked (s, error);
6796 if (!mono_error_ok (error))
6803 len = strlen (r) + 1;
6805 mp_s = (char *)mono_mempool_alloc (mp, len);
6807 mp_s = (char *)mono_image_alloc (image, len);
6809 memcpy (mp_s, r, len);
6817 * mono_string_to_utf8_image:
6818 * @s: a System.String
6820 * Same as mono_string_to_utf8, but allocate the string from the image mempool.
6823 mono_string_to_utf8_image (MonoImage *image, MonoString *s, MonoError *error)
6825 MONO_REQ_GC_UNSAFE_MODE;
6827 return mono_string_to_utf8_internal (NULL, image, s, FALSE, error);
6831 * mono_string_to_utf8_mp:
6832 * @s: a System.String
6834 * Same as mono_string_to_utf8, but allocate the string from a mempool.
6837 mono_string_to_utf8_mp (MonoMemPool *mp, MonoString *s, MonoError *error)
6839 MONO_REQ_GC_UNSAFE_MODE;
6841 return mono_string_to_utf8_internal (mp, NULL, s, FALSE, error);
6845 static MonoRuntimeExceptionHandlingCallbacks eh_callbacks;
6848 mono_install_eh_callbacks (MonoRuntimeExceptionHandlingCallbacks *cbs)
6850 eh_callbacks = *cbs;
6853 MonoRuntimeExceptionHandlingCallbacks *
6854 mono_get_eh_callbacks (void)
6856 return &eh_callbacks;
6860 * mono_raise_exception:
6861 * @ex: exception object
6863 * Signal the runtime that the exception @ex has been raised in unmanaged code.
6866 mono_raise_exception (MonoException *ex)
6868 MONO_REQ_GC_UNSAFE_MODE;
6871 * NOTE: Do NOT annotate this function with G_GNUC_NORETURN, since
6872 * that will cause gcc to omit the function epilog, causing problems when
6873 * the JIT tries to walk the stack, since the return address on the stack
6874 * will point into the next function in the executable, not this one.
6876 eh_callbacks.mono_raise_exception (ex);
6880 mono_raise_exception_with_context (MonoException *ex, MonoContext *ctx)
6882 MONO_REQ_GC_UNSAFE_MODE;
6884 eh_callbacks.mono_raise_exception_with_ctx (ex, ctx);
6888 * mono_wait_handle_new:
6889 * @domain: Domain where the object will be created
6890 * @handle: Handle for the wait handle
6891 * @error: set on error.
6893 * Returns: A new MonoWaitHandle created in the given domain for the
6894 * given handle. On failure returns NULL and sets @rror.
6897 mono_wait_handle_new (MonoDomain *domain, HANDLE handle, MonoError *error)
6899 MONO_REQ_GC_UNSAFE_MODE;
6901 MonoWaitHandle *res;
6902 gpointer params [1];
6903 static MonoMethod *handle_set;
6905 mono_error_init (error);
6906 res = (MonoWaitHandle *)mono_object_new_checked (domain, mono_defaults.manualresetevent_class, error);
6907 return_val_if_nok (error, NULL);
6909 /* Even though this method is virtual, it's safe to invoke directly, since the object type matches. */
6911 handle_set = mono_class_get_property_from_name (mono_defaults.manualresetevent_class, "Handle")->set;
6913 params [0] = &handle;
6915 mono_runtime_invoke_checked (handle_set, res, params, error);
6920 mono_wait_handle_get_handle (MonoWaitHandle *handle)
6922 MONO_REQ_GC_UNSAFE_MODE;
6924 static MonoClassField *f_safe_handle = NULL;
6927 if (!f_safe_handle) {
6928 f_safe_handle = mono_class_get_field_from_name (mono_defaults.manualresetevent_class, "safeWaitHandle");
6929 g_assert (f_safe_handle);
6932 mono_field_get_value ((MonoObject*)handle, f_safe_handle, &sh);
6938 mono_runtime_capture_context (MonoDomain *domain)
6940 MONO_REQ_GC_UNSAFE_MODE;
6942 RuntimeInvokeFunction runtime_invoke;
6944 if (!domain->capture_context_runtime_invoke || !domain->capture_context_method) {
6945 MonoMethod *method = mono_get_context_capture_method ();
6946 MonoMethod *wrapper;
6949 wrapper = mono_marshal_get_runtime_invoke (method, FALSE);
6950 domain->capture_context_runtime_invoke = mono_compile_method (wrapper);
6951 domain->capture_context_method = mono_compile_method (method);
6954 runtime_invoke = (RuntimeInvokeFunction)domain->capture_context_runtime_invoke;
6956 return runtime_invoke (NULL, NULL, NULL, domain->capture_context_method);
6959 * mono_async_result_new:
6960 * @domain:domain where the object will be created.
6961 * @handle: wait handle.
6962 * @state: state to pass to AsyncResult
6963 * @data: C closure data.
6965 * Creates a new MonoAsyncResult (AsyncResult C# class) in the given domain.
6966 * If the handle is not null, the handle is initialized to a MonOWaitHandle.
6970 mono_async_result_new (MonoDomain *domain, HANDLE handle, MonoObject *state, gpointer data, MonoObject *object_data)
6972 MONO_REQ_GC_UNSAFE_MODE;
6975 MonoAsyncResult *res = (MonoAsyncResult *)mono_object_new_checked (domain, mono_defaults.asyncresult_class, &error);
6976 mono_error_raise_exception (&error); /* FIXME don't raise here */
6977 MonoObject *context = mono_runtime_capture_context (domain);
6978 /* we must capture the execution context from the original thread */
6980 MONO_OBJECT_SETREF (res, execution_context, context);
6981 /* note: result may be null if the flow is suppressed */
6984 res->data = (void **)data;
6985 MONO_OBJECT_SETREF (res, object_data, object_data);
6986 MONO_OBJECT_SETREF (res, async_state, state);
6987 MonoWaitHandle *wait_handle = mono_wait_handle_new (domain, handle, &error);
6988 mono_error_raise_exception (&error); /* FIXME don't raise here */
6990 MONO_OBJECT_SETREF (res, handle, (MonoObject *) wait_handle);
6992 res->sync_completed = FALSE;
6993 res->completed = FALSE;
6999 ves_icall_System_Runtime_Remoting_Messaging_AsyncResult_Invoke (MonoAsyncResult *ares)
7001 MONO_REQ_GC_UNSAFE_MODE;
7008 g_assert (ares->async_delegate);
7010 ac = (MonoAsyncCall*) ares->object_data;
7012 res = mono_runtime_delegate_invoke (ares->async_delegate, (void**) &ares->async_state, NULL);
7014 gpointer wait_event = NULL;
7016 ac->msg->exc = NULL;
7017 res = mono_message_invoke (ares->async_delegate, ac->msg, &ac->msg->exc, &ac->out_args);
7018 MONO_OBJECT_SETREF (ac, res, res);
7020 mono_monitor_enter ((MonoObject*) ares);
7021 ares->completed = 1;
7023 wait_event = mono_wait_handle_get_handle ((MonoWaitHandle*) ares->handle);
7024 mono_monitor_exit ((MonoObject*) ares);
7026 if (wait_event != NULL)
7027 SetEvent (wait_event);
7029 if (ac->cb_method) {
7030 mono_runtime_invoke_checked (ac->cb_method, ac->cb_target, (gpointer*) &ares, &error);
7031 if (mono_error_set_pending_exception (&error))
7040 mono_message_init (MonoDomain *domain,
7041 MonoMethodMessage *this_obj,
7042 MonoReflectionMethod *method,
7043 MonoArray *out_args)
7045 MONO_REQ_GC_UNSAFE_MODE;
7047 static MonoClass *object_array_klass;
7048 static MonoClass *byte_array_klass;
7049 static MonoClass *string_array_klass;
7051 MonoMethodSignature *sig = mono_method_signature (method->method);
7058 if (!object_array_klass) {
7061 klass = mono_array_class_get (mono_defaults.byte_class, 1);
7063 byte_array_klass = klass;
7065 klass = mono_array_class_get (mono_defaults.string_class, 1);
7067 string_array_klass = klass;
7069 klass = mono_array_class_get (mono_defaults.object_class, 1);
7072 mono_atomic_store_release (&object_array_klass, klass);
7075 MONO_OBJECT_SETREF (this_obj, method, method);
7077 arr = mono_array_new_specific_checked (mono_class_vtable (domain, object_array_klass), sig->param_count, &error);
7078 mono_error_raise_exception (&error); /* FIXME don't raise here */
7080 MONO_OBJECT_SETREF (this_obj, args, arr);
7082 arr = mono_array_new_specific_checked (mono_class_vtable (domain, byte_array_klass), sig->param_count, &error);
7083 mono_error_raise_exception (&error); /* FIXME don't raise here */
7085 MONO_OBJECT_SETREF (this_obj, arg_types, arr);
7087 this_obj->async_result = NULL;
7088 this_obj->call_type = CallType_Sync;
7090 names = g_new (char *, sig->param_count);
7091 mono_method_get_param_names (method->method, (const char **) names);
7093 arr = mono_array_new_specific_checked (mono_class_vtable (domain, string_array_klass), sig->param_count, &error);
7094 mono_error_raise_exception (&error); /* FIXME don't raise here */
7096 MONO_OBJECT_SETREF (this_obj, names, arr);
7098 for (i = 0; i < sig->param_count; i++) {
7099 name = mono_string_new (domain, names [i]);
7100 mono_array_setref (this_obj->names, i, name);
7104 for (i = 0, j = 0; i < sig->param_count; i++) {
7105 if (sig->params [i]->byref) {
7107 MonoObject* arg = (MonoObject *)mono_array_get (out_args, gpointer, j);
7108 mono_array_setref (this_obj->args, i, arg);
7112 if (!(sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT))
7116 if (sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT)
7119 mono_array_set (this_obj->arg_types, guint8, i, arg_type);
7123 #ifndef DISABLE_REMOTING
7125 * mono_remoting_invoke:
7126 * @real_proxy: pointer to a RealProxy object
7127 * @msg: The MonoMethodMessage to execute
7128 * @exc: used to store exceptions
7129 * @out_args: used to store output arguments
7131 * This is used to call RealProxy::Invoke(). RealProxy::Invoke() returns an
7132 * IMessage interface and it is not trivial to extract results from there. So
7133 * we call an helper method PrivateInvoke instead of calling
7134 * RealProxy::Invoke() directly.
7136 * Returns: the result object.
7139 mono_remoting_invoke (MonoObject *real_proxy, MonoMethodMessage *msg, MonoObject **exc, MonoArray **out_args, MonoError *error)
7141 MONO_REQ_GC_UNSAFE_MODE;
7144 MonoMethod *im = real_proxy->vtable->domain->private_invoke_method;
7149 mono_error_init (error);
7151 /*static MonoObject *(*invoke) (gpointer, gpointer, MonoObject **, MonoArray **) = NULL;*/
7154 im = mono_class_get_method_from_name (mono_defaults.real_proxy_class, "PrivateInvoke", 4);
7156 mono_error_set_not_supported (error, "Linked away.");
7159 real_proxy->vtable->domain->private_invoke_method = im;
7162 pa [0] = real_proxy;
7167 o = mono_runtime_try_invoke (im, NULL, pa, exc, error);
7168 return_val_if_nok (error, NULL);
7175 mono_message_invoke (MonoObject *target, MonoMethodMessage *msg,
7176 MonoObject **exc, MonoArray **out_args)
7178 MONO_REQ_GC_UNSAFE_MODE;
7180 static MonoClass *object_array_klass;
7184 MonoMethodSignature *sig;
7187 int i, j, outarg_count = 0;
7189 #ifndef DISABLE_REMOTING
7190 if (target && mono_object_is_transparent_proxy (target)) {
7191 MonoTransparentProxy* tp = (MonoTransparentProxy *)target;
7192 if (mono_class_is_contextbound (tp->remote_class->proxy_class) && tp->rp->context == (MonoObject *) mono_context_get ()) {
7193 target = tp->rp->unwrapped_server;
7195 ret = mono_remoting_invoke ((MonoObject *)tp->rp, msg, exc, out_args, &error);
7196 mono_error_raise_exception (&error); /* FIXME don't raise here */
7203 domain = mono_domain_get ();
7204 method = msg->method->method;
7205 sig = mono_method_signature (method);
7207 for (i = 0; i < sig->param_count; i++) {
7208 if (sig->params [i]->byref)
7212 if (!object_array_klass) {
7215 klass = mono_array_class_get (mono_defaults.object_class, 1);
7218 mono_memory_barrier ();
7219 object_array_klass = klass;
7222 arr = mono_array_new_specific_checked (mono_class_vtable (domain, object_array_klass), outarg_count, &error);
7223 mono_error_raise_exception (&error); /* FIXME don't raise here */
7225 mono_gc_wbarrier_generic_store (out_args, (MonoObject*) arr);
7228 ret = mono_runtime_invoke_array (method, method->klass->valuetype? mono_object_unbox (target): target, msg->args, exc);
7230 for (i = 0, j = 0; i < sig->param_count; i++) {
7231 if (sig->params [i]->byref) {
7233 arg = (MonoObject *)mono_array_get (msg->args, gpointer, i);
7234 mono_array_setref (*out_args, j, arg);
7243 * mono_object_to_string:
7245 * @exc: Any exception thrown by ToString (). May be NULL.
7247 * Returns: the result of calling ToString () on an object.
7250 mono_object_to_string (MonoObject *obj, MonoObject **exc)
7252 MONO_REQ_GC_UNSAFE_MODE;
7254 static MonoMethod *to_string = NULL;
7263 to_string = mono_class_get_method_from_name_flags (mono_get_object_class (), "ToString", 0, METHOD_ATTRIBUTE_VIRTUAL | METHOD_ATTRIBUTE_PUBLIC);
7265 method = mono_object_get_virtual_method (obj, to_string);
7267 // Unbox value type if needed
7268 if (mono_class_is_valuetype (mono_method_get_class (method))) {
7269 target = mono_object_unbox (obj);
7273 s = (MonoString *) mono_runtime_try_invoke (method, target, NULL, exc, &error);
7274 if (*exc == NULL && !mono_error_ok (&error))
7275 *exc = (MonoObject*) mono_error_convert_to_exception (&error);
7277 mono_error_cleanup (&error);
7279 s = (MonoString *) mono_runtime_invoke_checked (method, target, NULL, &error);
7280 mono_error_raise_exception (&error); /* FIXME don't raise here */
7287 * mono_print_unhandled_exception:
7288 * @exc: The exception
7290 * Prints the unhandled exception.
7293 mono_print_unhandled_exception (MonoObject *exc)
7295 MONO_REQ_GC_UNSAFE_MODE;
7298 char *message = (char*)"";
7299 gboolean free_message = FALSE;
7302 if (exc == (MonoObject*)mono_object_domain (exc)->out_of_memory_ex) {
7303 message = g_strdup ("OutOfMemoryException");
7304 free_message = TRUE;
7305 } else if (exc == (MonoObject*)mono_object_domain (exc)->stack_overflow_ex) {
7306 message = g_strdup ("StackOverflowException"); //if we OVF, we can't expect to have stack space to JIT Exception::ToString.
7307 free_message = TRUE;
7310 if (((MonoException*)exc)->native_trace_ips) {
7311 message = mono_exception_get_native_backtrace ((MonoException*)exc);
7312 free_message = TRUE;
7314 MonoObject *other_exc = NULL;
7315 str = mono_object_to_string (exc, &other_exc);
7317 char *original_backtrace = mono_exception_get_managed_backtrace ((MonoException*)exc);
7318 char *nested_backtrace = mono_exception_get_managed_backtrace ((MonoException*)other_exc);
7320 message = g_strdup_printf ("Nested exception detected.\nOriginal Exception: %s\nNested exception:%s\n",
7321 original_backtrace, nested_backtrace);
7323 g_free (original_backtrace);
7324 g_free (nested_backtrace);
7325 free_message = TRUE;
7327 message = mono_string_to_utf8_checked (str, &error);
7328 if (!mono_error_ok (&error)) {
7329 mono_error_cleanup (&error);
7330 message = (char *) "";
7332 free_message = TRUE;
7339 * g_printerr ("\nUnhandled Exception: %s.%s: %s\n", exc->vtable->klass->name_space,
7340 * exc->vtable->klass->name, message);
7342 g_printerr ("\nUnhandled Exception:\n%s\n", message);
7349 * mono_delegate_ctor:
7350 * @this: pointer to an uninitialized delegate object
7351 * @target: target object
7352 * @addr: pointer to native code
7355 * Initialize a delegate and sets a specific method, not the one
7356 * associated with addr. This is useful when sharing generic code.
7357 * In that case addr will most probably not be associated with the
7358 * correct instantiation of the method.
7361 mono_delegate_ctor_with_method (MonoObject *this_obj, MonoObject *target, gpointer addr, MonoMethod *method)
7363 MONO_REQ_GC_UNSAFE_MODE;
7365 MonoDelegate *delegate = (MonoDelegate *)this_obj;
7367 g_assert (this_obj);
7370 g_assert (mono_class_has_parent (mono_object_class (this_obj), mono_defaults.multicastdelegate_class));
7373 delegate->method = method;
7375 mono_stats.delegate_creations++;
7377 #ifndef DISABLE_REMOTING
7378 if (target && target->vtable->klass == mono_defaults.transparent_proxy_class) {
7380 method = mono_marshal_get_remoting_invoke (method);
7381 delegate->method_ptr = mono_compile_method (method);
7382 MONO_OBJECT_SETREF (delegate, target, target);
7386 delegate->method_ptr = addr;
7387 MONO_OBJECT_SETREF (delegate, target, target);
7390 delegate->invoke_impl = arch_create_delegate_trampoline (delegate->object.vtable->domain, delegate->object.vtable->klass);
7391 if (callbacks.init_delegate)
7392 callbacks.init_delegate (delegate);
7396 * mono_delegate_ctor:
7397 * @this: pointer to an uninitialized delegate object
7398 * @target: target object
7399 * @addr: pointer to native code
7401 * This is used to initialize a delegate.
7404 mono_delegate_ctor (MonoObject *this_obj, MonoObject *target, gpointer addr)
7406 MONO_REQ_GC_UNSAFE_MODE;
7408 MonoDomain *domain = mono_domain_get ();
7410 MonoMethod *method = NULL;
7414 ji = mono_jit_info_table_find (domain, (char *)mono_get_addr_from_ftnptr (addr));
7416 if (!ji && domain != mono_get_root_domain ())
7417 ji = mono_jit_info_table_find (mono_get_root_domain (), (char *)mono_get_addr_from_ftnptr (addr));
7419 method = mono_jit_info_get_method (ji);
7420 g_assert (!method->klass->generic_container);
7423 mono_delegate_ctor_with_method (this_obj, target, addr, method);
7427 * mono_method_call_message_new:
7428 * @method: method to encapsulate
7429 * @params: parameters to the method
7430 * @invoke: optional, delegate invoke.
7431 * @cb: async callback delegate.
7432 * @state: state passed to the async callback.
7434 * Translates arguments pointers into a MonoMethodMessage.
7437 mono_method_call_message_new (MonoMethod *method, gpointer *params, MonoMethod *invoke,
7438 MonoDelegate **cb, MonoObject **state)
7440 MONO_REQ_GC_UNSAFE_MODE;
7444 MonoDomain *domain = mono_domain_get ();
7445 MonoMethodSignature *sig = mono_method_signature (method);
7446 MonoMethodMessage *msg;
7449 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, &error);
7450 mono_error_raise_exception (&error); /* FIXME don't raise here */
7453 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, invoke, NULL, &error);
7454 mono_error_raise_exception (&error); /* FIXME don't raise here */
7455 mono_message_init (domain, msg, rm, NULL);
7456 count = sig->param_count - 2;
7458 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, method, NULL, &error);
7459 mono_error_raise_exception (&error); /* FIXME don't raise here */
7460 mono_message_init (domain, msg, rm, NULL);
7461 count = sig->param_count;
7464 for (i = 0; i < count; i++) {
7469 if (sig->params [i]->byref)
7470 vpos = *((gpointer *)params [i]);
7474 klass = mono_class_from_mono_type (sig->params [i]);
7476 if (klass->valuetype) {
7477 arg = mono_value_box_checked (domain, klass, vpos, &error);
7478 mono_error_raise_exception (&error); /* FIXME don't raise here */
7480 arg = *((MonoObject **)vpos);
7482 mono_array_setref (msg->args, i, arg);
7485 if (cb != NULL && state != NULL) {
7486 *cb = *((MonoDelegate **)params [i]);
7488 *state = *((MonoObject **)params [i]);
7495 * mono_method_return_message_restore:
7497 * Restore results from message based processing back to arguments pointers
7500 mono_method_return_message_restore (MonoMethod *method, gpointer *params, MonoArray *out_args, MonoError *error)
7502 MONO_REQ_GC_UNSAFE_MODE;
7504 mono_error_init (error);
7506 MonoMethodSignature *sig = mono_method_signature (method);
7507 int i, j, type, size, out_len;
7509 if (out_args == NULL)
7511 out_len = mono_array_length (out_args);
7515 for (i = 0, j = 0; i < sig->param_count; i++) {
7516 MonoType *pt = sig->params [i];
7521 mono_error_set_execution_engine (error, "The proxy call returned an incorrect number of output arguments");
7525 arg = (char *)mono_array_get (out_args, gpointer, j);
7528 g_assert (type != MONO_TYPE_VOID);
7530 if (MONO_TYPE_IS_REFERENCE (pt)) {
7531 mono_gc_wbarrier_generic_store (*((MonoObject ***)params [i]), (MonoObject *)arg);
7534 MonoClass *klass = ((MonoObject*)arg)->vtable->klass;
7535 size = mono_class_value_size (klass, NULL);
7536 if (klass->has_references)
7537 mono_gc_wbarrier_value_copy (*((gpointer *)params [i]), arg + sizeof (MonoObject), 1, klass);
7539 mono_gc_memmove_atomic (*((gpointer *)params [i]), arg + sizeof (MonoObject), size);
7541 size = mono_class_value_size (mono_class_from_mono_type (pt), NULL);
7542 mono_gc_bzero_atomic (*((gpointer *)params [i]), size);
7551 #ifndef DISABLE_REMOTING
7554 * mono_load_remote_field:
7555 * @this: pointer to an object
7556 * @klass: klass of the object containing @field
7557 * @field: the field to load
7558 * @res: a storage to store the result
7560 * This method is called by the runtime on attempts to load fields of
7561 * transparent proxy objects. @this points to such TP, @klass is the class of
7562 * the object containing @field. @res is a storage location which can be
7563 * used to store the result.
7565 * Returns: an address pointing to the value of field.
7568 mono_load_remote_field (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, gpointer *res)
7571 gpointer result = mono_load_remote_field_checked (this_obj, klass, field, res, &error);
7572 mono_error_cleanup (&error);
7577 * mono_load_remote_field_checked:
7578 * @this: pointer to an object
7579 * @klass: klass of the object containing @field
7580 * @field: the field to load
7581 * @res: a storage to store the result
7582 * @error: set on error
7584 * This method is called by the runtime on attempts to load fields of
7585 * transparent proxy objects. @this points to such TP, @klass is the class of
7586 * the object containing @field. @res is a storage location which can be
7587 * used to store the result.
7589 * Returns: an address pointing to the value of field. On failure returns NULL and sets @error.
7592 mono_load_remote_field_checked (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, gpointer *res, MonoError *error)
7594 MONO_REQ_GC_UNSAFE_MODE;
7596 static MonoMethod *getter = NULL;
7598 mono_error_init (error);
7600 MonoDomain *domain = mono_domain_get ();
7601 MonoTransparentProxy *tp = (MonoTransparentProxy *) this_obj;
7602 MonoClass *field_class;
7603 MonoMethodMessage *msg;
7604 MonoArray *out_args;
7608 g_assert (mono_object_is_transparent_proxy (this_obj));
7609 g_assert (res != NULL);
7611 if (mono_class_is_contextbound (tp->remote_class->proxy_class) && tp->rp->context == (MonoObject *) mono_context_get ()) {
7612 mono_field_get_value (tp->rp->unwrapped_server, field, res);
7617 getter = mono_class_get_method_from_name (mono_defaults.object_class, "FieldGetter", -1);
7619 mono_error_set_not_supported (error, "Linked away.");
7624 field_class = mono_class_from_mono_type (field->type);
7626 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, error);
7627 return_val_if_nok (error, NULL);
7628 out_args = mono_array_new_checked (domain, mono_defaults.object_class, 1, error);
7629 return_val_if_nok (error, NULL);
7630 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, getter, NULL, error);
7631 return_val_if_nok (error, NULL);
7632 mono_message_init (domain, msg, rm, out_args);
7634 full_name = mono_type_get_full_name (klass);
7635 mono_array_setref (msg->args, 0, mono_string_new (domain, full_name));
7636 mono_array_setref (msg->args, 1, mono_string_new (domain, mono_field_get_name (field)));
7639 mono_remoting_invoke ((MonoObject *)(tp->rp), msg, &exc, &out_args, error);
7640 return_val_if_nok (error, NULL);
7643 mono_error_set_exception_instance (error, (MonoException *)exc);
7647 if (mono_array_length (out_args) == 0)
7650 mono_gc_wbarrier_generic_store (res, mono_array_get (out_args, MonoObject *, 0));
7652 if (field_class->valuetype) {
7653 return ((char *)*res) + sizeof (MonoObject);
7659 * mono_load_remote_field_new:
7664 * Missing documentation.
7667 mono_load_remote_field_new (MonoObject *this_obj, MonoClass *klass, MonoClassField *field)
7671 MonoObject *result = mono_load_remote_field_new_checked (this_obj, klass, field, &error);
7672 mono_error_cleanup (&error);
7677 * mono_load_remote_field_new_icall:
7678 * @this: pointer to an object
7679 * @klass: klass of the object containing @field
7680 * @field: the field to load
7682 * This method is called by the runtime on attempts to load fields of
7683 * transparent proxy objects. @this points to such TP, @klass is the class of
7684 * the object containing @field.
7686 * Returns: a freshly allocated object containing the value of the
7687 * field. On failure returns NULL and throws an exception.
7690 mono_load_remote_field_new_icall (MonoObject *this_obj, MonoClass *klass, MonoClassField *field)
7693 MonoObject *result = mono_load_remote_field_new_checked (this_obj, klass, field, &error);
7694 mono_error_set_pending_exception (&error);
7699 * mono_load_remote_field_new_checked:
7700 * @this: pointer to an object
7701 * @klass: klass of the object containing @field
7702 * @field: the field to load
7703 * @error: set on error.
7705 * This method is called by the runtime on attempts to load fields of
7706 * transparent proxy objects. @this points to such TP, @klass is the class of
7707 * the object containing @field.
7709 * Returns: a freshly allocated object containing the value of the field. On failure returns NULL and sets @error.
7712 mono_load_remote_field_new_checked (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, MonoError *error)
7714 MONO_REQ_GC_UNSAFE_MODE;
7716 mono_error_init (error);
7718 static MonoMethod *getter = NULL;
7719 MonoDomain *domain = mono_domain_get ();
7720 MonoTransparentProxy *tp = (MonoTransparentProxy *) this_obj;
7721 MonoClass *field_class;
7722 MonoMethodMessage *msg;
7723 MonoArray *out_args;
7724 MonoObject *exc, *res;
7727 g_assert (mono_object_is_transparent_proxy (this_obj));
7729 field_class = mono_class_from_mono_type (field->type);
7731 if (mono_class_is_contextbound (tp->remote_class->proxy_class) && tp->rp->context == (MonoObject *) mono_context_get ()) {
7733 if (field_class->valuetype) {
7734 res = mono_object_new_checked (domain, field_class, error);
7735 return_val_if_nok (error, NULL);
7736 val = ((gchar *) res) + sizeof (MonoObject);
7740 mono_field_get_value (tp->rp->unwrapped_server, field, val);
7745 getter = mono_class_get_method_from_name (mono_defaults.object_class, "FieldGetter", -1);
7747 mono_error_set_not_supported (error, "Linked away.");
7752 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, error);
7753 return_val_if_nok (error, NULL);
7754 out_args = mono_array_new_checked (domain, mono_defaults.object_class, 1, error);
7755 return_val_if_nok (error, NULL);
7757 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, getter, NULL, error);
7758 return_val_if_nok (error, NULL);
7759 mono_message_init (domain, msg, rm, out_args);
7761 full_name = mono_type_get_full_name (klass);
7762 mono_array_setref (msg->args, 0, mono_string_new (domain, full_name));
7763 mono_array_setref (msg->args, 1, mono_string_new (domain, mono_field_get_name (field)));
7766 mono_remoting_invoke ((MonoObject *)(tp->rp), msg, &exc, &out_args, error);
7767 return_val_if_nok (error, NULL);
7770 mono_error_set_exception_instance (error, (MonoException *)exc);
7774 if (mono_array_length (out_args) == 0)
7777 res = mono_array_get (out_args, MonoObject *, 0);
7783 * mono_store_remote_field:
7784 * @this_obj: pointer to an object
7785 * @klass: klass of the object containing @field
7786 * @field: the field to load
7787 * @val: the value/object to store
7789 * This method is called by the runtime on attempts to store fields of
7790 * transparent proxy objects. @this_obj points to such TP, @klass is the class of
7791 * the object containing @field. @val is the new value to store in @field.
7794 mono_store_remote_field (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, gpointer val)
7797 (void) mono_store_remote_field_checked (this_obj, klass, field, val, &error);
7798 mono_error_cleanup (&error);
7802 * mono_store_remote_field_checked:
7803 * @this_obj: pointer to an object
7804 * @klass: klass of the object containing @field
7805 * @field: the field to load
7806 * @val: the value/object to store
7807 * @error: set on error
7809 * This method is called by the runtime on attempts to store fields of
7810 * transparent proxy objects. @this_obj points to such TP, @klass is the class of
7811 * the object containing @field. @val is the new value to store in @field.
7813 * Returns: on success returns TRUE, on failure returns FALSE and sets @error.
7816 mono_store_remote_field_checked (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, gpointer val, MonoError *error)
7819 MONO_REQ_GC_UNSAFE_MODE;
7821 static MonoMethod *setter = NULL;
7823 MonoDomain *domain = mono_domain_get ();
7824 MonoTransparentProxy *tp = (MonoTransparentProxy *) this_obj;
7825 MonoClass *field_class;
7826 MonoMethodMessage *msg;
7827 MonoArray *out_args;
7832 mono_error_init (error);
7834 g_assert (mono_object_is_transparent_proxy (this_obj));
7836 field_class = mono_class_from_mono_type (field->type);
7838 if (mono_class_is_contextbound (tp->remote_class->proxy_class) && tp->rp->context == (MonoObject *) mono_context_get ()) {
7839 if (field_class->valuetype) mono_field_set_value (tp->rp->unwrapped_server, field, val);
7840 else mono_field_set_value (tp->rp->unwrapped_server, field, *((MonoObject **)val));
7845 setter = mono_class_get_method_from_name (mono_defaults.object_class, "FieldSetter", -1);
7847 mono_error_set_not_supported (error, "Linked away.");
7852 if (field_class->valuetype) {
7853 arg = mono_value_box_checked (domain, field_class, val, error);
7854 return_val_if_nok (error, FALSE);
7856 arg = *((MonoObject **)val);
7859 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, error);
7860 return_val_if_nok (error, FALSE);
7861 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, setter, NULL, error);
7862 return_val_if_nok (error, FALSE);
7863 mono_message_init (domain, msg, rm, NULL);
7865 full_name = mono_type_get_full_name (klass);
7866 mono_array_setref (msg->args, 0, mono_string_new (domain, full_name));
7867 mono_array_setref (msg->args, 1, mono_string_new (domain, mono_field_get_name (field)));
7868 mono_array_setref (msg->args, 2, arg);
7871 mono_remoting_invoke ((MonoObject *)(tp->rp), msg, &exc, &out_args, error);
7872 return_val_if_nok (error, FALSE);
7875 mono_error_set_exception_instance (error, (MonoException *)exc);
7882 * mono_store_remote_field_new:
7888 * Missing documentation
7891 mono_store_remote_field_new (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, MonoObject *arg)
7894 (void) mono_store_remote_field_new_checked (this_obj, klass, field, arg, &error);
7895 mono_error_cleanup (&error);
7899 * mono_store_remote_field_new_icall:
7905 * Missing documentation
7908 mono_store_remote_field_new_icall (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, MonoObject *arg)
7911 (void) mono_store_remote_field_new_checked (this_obj, klass, field, arg, &error);
7912 mono_error_set_pending_exception (&error);
7916 * mono_store_remote_field_new_checked:
7923 * Missing documentation
7926 mono_store_remote_field_new_checked (MonoObject *this_obj, MonoClass *klass, MonoClassField *field, MonoObject *arg, MonoError *error)
7928 MONO_REQ_GC_UNSAFE_MODE;
7930 static MonoMethod *setter = NULL;
7931 MonoDomain *domain = mono_domain_get ();
7932 MonoTransparentProxy *tp = (MonoTransparentProxy *) this_obj;
7933 MonoClass *field_class;
7934 MonoMethodMessage *msg;
7935 MonoArray *out_args;
7939 mono_error_init (error);
7941 g_assert (mono_object_is_transparent_proxy (this_obj));
7943 field_class = mono_class_from_mono_type (field->type);
7945 if (mono_class_is_contextbound (tp->remote_class->proxy_class) && tp->rp->context == (MonoObject *) mono_context_get ()) {
7946 if (field_class->valuetype) mono_field_set_value (tp->rp->unwrapped_server, field, ((gchar *) arg) + sizeof (MonoObject));
7947 else mono_field_set_value (tp->rp->unwrapped_server, field, arg);
7952 setter = mono_class_get_method_from_name (mono_defaults.object_class, "FieldSetter", -1);
7954 mono_error_set_not_supported (error, "Linked away.");
7959 msg = (MonoMethodMessage *)mono_object_new_checked (domain, mono_defaults.mono_method_message_class, error);
7960 return_val_if_nok (error, FALSE);
7961 MonoReflectionMethod *rm = mono_method_get_object_checked (domain, setter, NULL, error);
7962 return_val_if_nok (error, FALSE);
7963 mono_message_init (domain, msg, rm, NULL);
7965 full_name = mono_type_get_full_name (klass);
7966 mono_array_setref (msg->args, 0, mono_string_new (domain, full_name));
7967 mono_array_setref (msg->args, 1, mono_string_new (domain, mono_field_get_name (field)));
7968 mono_array_setref (msg->args, 2, arg);
7971 mono_remoting_invoke ((MonoObject *)(tp->rp), msg, &exc, &out_args, error);
7972 return_val_if_nok (error, FALSE);
7975 mono_error_set_exception_instance (error, (MonoException *)exc);
7983 * mono_create_ftnptr:
7985 * Given a function address, create a function descriptor for it.
7986 * This is only needed on some platforms.
7989 mono_create_ftnptr (MonoDomain *domain, gpointer addr)
7991 return callbacks.create_ftnptr (domain, addr);
7995 * mono_get_addr_from_ftnptr:
7997 * Given a pointer to a function descriptor, return the function address.
7998 * This is only needed on some platforms.
8001 mono_get_addr_from_ftnptr (gpointer descr)
8003 return callbacks.get_addr_from_ftnptr (descr);
8007 * mono_string_chars:
8010 * Returns a pointer to the UCS16 characters stored in the MonoString
8013 mono_string_chars (MonoString *s)
8015 // MONO_REQ_GC_UNSAFE_MODE; //FIXME too much trouble for now
8021 * mono_string_length:
8024 * Returns the lenght in characters of the string
8027 mono_string_length (MonoString *s)
8029 MONO_REQ_GC_UNSAFE_MODE;
8035 * mono_array_length:
8036 * @array: a MonoArray*
8038 * Returns the total number of elements in the array. This works for
8039 * both vectors and multidimensional arrays.
8042 mono_array_length (MonoArray *array)
8044 MONO_REQ_GC_UNSAFE_MODE;
8046 return array->max_length;
8050 * mono_array_addr_with_size:
8051 * @array: a MonoArray*
8052 * @size: size of the array elements
8053 * @idx: index into the array
8055 * Use this function to obtain the address for the @idx item on the
8056 * @array containing elements of size @size.
8058 * This method performs no bounds checking or type checking.
8060 * Returns the address of the @idx element in the array.
8063 mono_array_addr_with_size (MonoArray *array, int size, uintptr_t idx)
8065 MONO_REQ_GC_UNSAFE_MODE;
8067 return ((char*)(array)->vector) + size * idx;
8072 mono_glist_to_array (GList *list, MonoClass *eclass, MonoError *error)
8074 MonoDomain *domain = mono_domain_get ();
8078 mono_error_init (error);
8082 len = g_list_length (list);
8083 res = mono_array_new_checked (domain, eclass, len, error);
8084 return_val_if_nok (error, NULL);
8086 for (i = 0; list; list = list->next, i++)
8087 mono_array_set (res, gpointer, i, list->data);
8094 * The following section is purely to declare prototypes and
8095 * document the API, as these C files are processed by our
8101 * @array: array to alter
8102 * @element_type: A C type name, this macro will use the sizeof(type) to determine the element size
8103 * @index: index into the array
8104 * @value: value to set
8106 * Value Type version: This sets the @index's element of the @array
8107 * with elements of size sizeof(type) to the provided @value.
8109 * This macro does not attempt to perform type checking or bounds checking.
8111 * Use this to set value types in a `MonoArray`.
8113 void mono_array_set(MonoArray *array, Type element_type, uintptr_t index, Value value)
8118 * mono_array_setref:
8119 * @array: array to alter
8120 * @index: index into the array
8121 * @value: value to set
8123 * Reference Type version: This sets the @index's element of the
8124 * @array with elements of size sizeof(type) to the provided @value.
8126 * This macro does not attempt to perform type checking or bounds checking.
8128 * Use this to reference types in a `MonoArray`.
8130 void mono_array_setref(MonoArray *array, uintptr_t index, MonoObject *object)
8136 * @array: array on which to operate on
8137 * @element_type: C element type (example: MonoString *, int, MonoObject *)
8138 * @index: index into the array
8140 * Use this macro to retrieve the @index element of an @array and
8141 * extract the value assuming that the elements of the array match
8142 * the provided type value.
8144 * This method can be used with both arrays holding value types and
8145 * reference types. For reference types, the @type parameter should
8146 * be a `MonoObject*` or any subclass of it, like `MonoString*`.
8148 * This macro does not attempt to perform type checking or bounds checking.
8150 * Returns: The element at the @index position in the @array.
8152 Type mono_array_get (MonoArray *array, Type element_type, uintptr_t index)