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 2004-2009 Novell, Inc (http://www.novell.com)
19 #include <mono/metadata/mono-endian.h>
20 #include <mono/metadata/tabledefs.h>
21 #include <mono/metadata/tokentype.h>
22 #include <mono/metadata/loader.h>
23 #include <mono/metadata/object.h>
24 #include <mono/metadata/gc-internal.h>
25 #include <mono/metadata/exception.h>
26 #include <mono/metadata/domain-internals.h>
27 #include "mono/metadata/metadata-internals.h"
28 #include "mono/metadata/class-internals.h"
29 #include <mono/metadata/assembly.h>
30 #include <mono/metadata/threadpool.h>
31 #include <mono/metadata/marshal.h>
32 #include "mono/metadata/debug-helpers.h"
33 #include "mono/metadata/marshal.h"
34 #include <mono/metadata/threads.h>
35 #include <mono/metadata/threads-types.h>
36 #include <mono/metadata/environment.h>
37 #include "mono/metadata/profiler-private.h"
38 #include "mono/metadata/security-manager.h"
39 #include "mono/metadata/mono-debug-debugger.h"
40 #include <mono/metadata/gc-internal.h>
41 #include <mono/metadata/verify-internals.h>
42 #include <mono/utils/strenc.h>
43 #include <mono/utils/mono-counters.h>
44 #include <mono/utils/mono-error-internals.h>
45 #include "cominterop.h"
48 #define NEED_TO_ZERO_PTRFREE 1
49 #define ALLOC_PTRFREE(obj,vt,size) do { (obj) = GC_MALLOC_ATOMIC ((size)); (obj)->vtable = (vt); (obj)->synchronisation = NULL;} while (0)
50 #define ALLOC_OBJECT(obj,vt,size) do { (obj) = GC_MALLOC ((size)); (obj)->vtable = (vt);} while (0)
51 #ifdef HAVE_GC_GCJ_MALLOC
52 #define GC_NO_DESCRIPTOR ((gpointer)(0 | GC_DS_LENGTH))
53 #define ALLOC_TYPED(dest,size,type) do { (dest) = GC_GCJ_MALLOC ((size),(type)); } while (0)
55 #define GC_NO_DESCRIPTOR (NULL)
56 #define ALLOC_TYPED(dest,size,type) do { (dest) = GC_MALLOC ((size)); *(gpointer*)dest = (type);} while (0)
60 #define GC_NO_DESCRIPTOR (NULL)
61 #define ALLOC_PTRFREE(obj,vt,size) do { (obj) = mono_gc_alloc_obj (vt, size);} while (0)
62 #define ALLOC_OBJECT(obj,vt,size) do { (obj) = mono_gc_alloc_obj (vt, size);} while (0)
63 #define ALLOC_TYPED(dest,size,type) do { (dest) = mono_gc_alloc_obj (type, size);} while (0)
65 #define NEED_TO_ZERO_PTRFREE 1
66 #define GC_NO_DESCRIPTOR (NULL)
67 #define ALLOC_PTRFREE(obj,vt,size) do { (obj) = malloc ((size)); (obj)->vtable = (vt); (obj)->synchronisation = NULL;} while (0)
68 #define ALLOC_OBJECT(obj,vt,size) do { (obj) = calloc (1, (size)); (obj)->vtable = (vt);} while (0)
69 #define ALLOC_TYPED(dest,size,type) do { (dest) = calloc (1, (size)); *(gpointer*)dest = (type);} while (0)
73 static MonoObject* mono_object_new_ptrfree (MonoVTable *vtable);
74 static MonoObject* mono_object_new_ptrfree_box (MonoVTable *vtable);
77 get_default_field_value (MonoDomain* domain, MonoClassField *field, void *value);
80 mono_ldstr_metadata_sig (MonoDomain *domain, const char* sig);
82 #define ldstr_lock() EnterCriticalSection (&ldstr_section)
83 #define ldstr_unlock() LeaveCriticalSection (&ldstr_section)
84 static CRITICAL_SECTION ldstr_section;
86 static gboolean profile_allocs = TRUE;
89 mono_runtime_object_init (MonoObject *this)
91 MonoMethod *method = NULL;
92 MonoClass *klass = this->vtable->klass;
94 method = mono_class_get_method_from_name (klass, ".ctor", 0);
97 if (method->klass->valuetype)
98 this = mono_object_unbox (this);
99 mono_runtime_invoke (method, this, NULL, NULL);
102 /* The pseudo algorithm for type initialization from the spec
103 Note it doesn't say anything about domains - only threads.
105 2. If the type is initialized you are done.
106 2.1. If the type is not yet initialized, try to take an
108 2.2. If successful, record this thread as responsible for
109 initializing the type and proceed to step 2.3.
110 2.2.1. If not, see whether this thread or any thread
111 waiting for this thread to complete already holds the lock.
112 2.2.2. If so, return since blocking would create a deadlock. This thread
113 will now see an incompletely initialized state for the type,
114 but no deadlock will arise.
115 2.2.3 If not, block until the type is initialized then return.
116 2.3 Initialize the parent type and then all interfaces implemented
118 2.4 Execute the type initialization code for this type.
119 2.5 Mark the type as initialized, release the initialization lock,
120 awaken any threads waiting for this type to be initialized,
127 guint32 initializing_tid;
128 guint32 waiting_count;
130 CRITICAL_SECTION initialization_section;
131 } TypeInitializationLock;
133 /* for locking access to type_initialization_hash and blocked_thread_hash */
134 #define mono_type_initialization_lock() EnterCriticalSection (&type_initialization_section)
135 #define mono_type_initialization_unlock() LeaveCriticalSection (&type_initialization_section)
136 static CRITICAL_SECTION type_initialization_section;
138 /* from vtable to lock */
139 static GHashTable *type_initialization_hash;
141 /* from thread id to thread id being waited on */
142 static GHashTable *blocked_thread_hash;
145 static MonoThread *main_thread;
147 /* Functions supplied by the runtime */
148 static MonoRuntimeCallbacks callbacks;
151 * mono_thread_set_main:
152 * @thread: thread to set as the main thread
154 * This function can be used to instruct the runtime to treat @thread
155 * as the main thread, ie, the thread that would normally execute the Main()
156 * method. This basically means that at the end of @thread, the runtime will
157 * wait for the existing foreground threads to quit and other such details.
160 mono_thread_set_main (MonoThread *thread)
162 main_thread = thread;
166 mono_thread_get_main (void)
172 mono_type_initialization_init (void)
174 InitializeCriticalSection (&type_initialization_section);
175 type_initialization_hash = g_hash_table_new (NULL, NULL);
176 blocked_thread_hash = g_hash_table_new (NULL, NULL);
177 InitializeCriticalSection (&ldstr_section);
181 mono_type_initialization_cleanup (void)
184 /* This is causing race conditions with
185 * mono_release_type_locks
187 DeleteCriticalSection (&type_initialization_section);
189 DeleteCriticalSection (&ldstr_section);
193 * get_type_init_exception_for_vtable:
195 * Return the stored type initialization exception for VTABLE.
197 static MonoException*
198 get_type_init_exception_for_vtable (MonoVTable *vtable)
200 MonoDomain *domain = vtable->domain;
201 MonoClass *klass = vtable->klass;
205 g_assert (vtable->init_failed);
208 * If the initializing thread was rudely aborted, the exception is not stored
212 mono_domain_lock (domain);
213 if (domain->type_init_exception_hash)
214 ex = mono_g_hash_table_lookup (domain->type_init_exception_hash, klass);
215 mono_domain_unlock (domain);
218 if (klass->name_space && *klass->name_space)
219 full_name = g_strdup_printf ("%s.%s", klass->name_space, klass->name);
221 full_name = g_strdup (klass->name);
222 ex = mono_get_exception_type_initialization (full_name, NULL);
229 * mono_runtime_class_init:
230 * @vtable: vtable that needs to be initialized
232 * This routine calls the class constructor for @vtable.
235 mono_runtime_class_init (MonoVTable *vtable)
237 mono_runtime_class_init_full (vtable, TRUE);
241 * mono_runtime_class_init_full:
242 * @vtable that neeeds to be initialized
243 * @raise_exception is TRUE, exceptions are raised intead of returned
247 mono_runtime_class_init_full (MonoVTable *vtable, gboolean raise_exception)
250 MonoException *exc_to_throw;
251 MonoMethod *method = NULL;
257 if (vtable->initialized)
261 klass = vtable->klass;
263 if (!klass->image->checked_module_cctor) {
264 mono_image_check_for_module_cctor (klass->image);
265 if (klass->image->has_module_cctor) {
266 MonoClass *module_klass = mono_class_get (klass->image, MONO_TOKEN_TYPE_DEF | 1);
267 MonoVTable *module_vtable = mono_class_vtable_full (vtable->domain, module_klass, raise_exception);
270 mono_runtime_class_init (module_vtable);
273 method = mono_class_get_cctor (klass);
276 MonoDomain *domain = vtable->domain;
277 TypeInitializationLock *lock;
278 guint32 tid = GetCurrentThreadId();
279 int do_initialization = 0;
280 MonoDomain *last_domain = NULL;
282 mono_type_initialization_lock ();
283 /* double check... */
284 if (vtable->initialized) {
285 mono_type_initialization_unlock ();
288 if (vtable->init_failed) {
289 mono_type_initialization_unlock ();
291 /* The type initialization already failed once, rethrow the same exception */
293 mono_raise_exception (get_type_init_exception_for_vtable (vtable));
294 return get_type_init_exception_for_vtable (vtable);
296 lock = g_hash_table_lookup (type_initialization_hash, vtable);
298 /* This thread will get to do the initialization */
299 if (mono_domain_get () != domain) {
300 /* Transfer into the target domain */
301 last_domain = mono_domain_get ();
302 if (!mono_domain_set (domain, FALSE)) {
303 vtable->initialized = 1;
304 mono_type_initialization_unlock ();
306 mono_raise_exception (mono_get_exception_appdomain_unloaded ());
307 return mono_get_exception_appdomain_unloaded ();
310 lock = g_malloc (sizeof(TypeInitializationLock));
311 InitializeCriticalSection (&lock->initialization_section);
312 lock->initializing_tid = tid;
313 lock->waiting_count = 1;
315 /* grab the vtable lock while this thread still owns type_initialization_section */
316 EnterCriticalSection (&lock->initialization_section);
317 g_hash_table_insert (type_initialization_hash, vtable, lock);
318 do_initialization = 1;
321 TypeInitializationLock *pending_lock;
323 if (lock->initializing_tid == tid || lock->done) {
324 mono_type_initialization_unlock ();
327 /* see if the thread doing the initialization is already blocked on this thread */
328 blocked = GUINT_TO_POINTER (lock->initializing_tid);
329 while ((pending_lock = (TypeInitializationLock*) g_hash_table_lookup (blocked_thread_hash, blocked))) {
330 if (pending_lock->initializing_tid == tid) {
331 if (!pending_lock->done) {
332 mono_type_initialization_unlock ();
335 /* the thread doing the initialization is blocked on this thread,
336 but on a lock that has already been freed. It just hasn't got
341 blocked = GUINT_TO_POINTER (pending_lock->initializing_tid);
343 ++lock->waiting_count;
344 /* record the fact that we are waiting on the initializing thread */
345 g_hash_table_insert (blocked_thread_hash, GUINT_TO_POINTER (tid), lock);
347 mono_type_initialization_unlock ();
349 if (do_initialization) {
350 mono_runtime_invoke (method, NULL, NULL, (MonoObject **) &exc);
352 /* If the initialization failed, mark the class as unusable. */
353 /* Avoid infinite loops */
355 (klass->image == mono_defaults.corlib &&
356 !strcmp (klass->name_space, "System") &&
357 !strcmp (klass->name, "TypeInitializationException")))) {
358 vtable->init_failed = 1;
360 if (klass->name_space && *klass->name_space)
361 full_name = g_strdup_printf ("%s.%s", klass->name_space, klass->name);
363 full_name = g_strdup (klass->name);
364 exc_to_throw = mono_get_exception_type_initialization (full_name, exc);
368 * Store the exception object so it could be thrown on subsequent
371 mono_domain_lock (domain);
372 if (!domain->type_init_exception_hash)
373 domain->type_init_exception_hash = mono_g_hash_table_new_type (mono_aligned_addr_hash, NULL, MONO_HASH_VALUE_GC);
374 mono_g_hash_table_insert (domain->type_init_exception_hash, klass, exc_to_throw);
375 mono_domain_unlock (domain);
379 mono_domain_set (last_domain, TRUE);
381 LeaveCriticalSection (&lock->initialization_section);
383 /* this just blocks until the initializing thread is done */
384 EnterCriticalSection (&lock->initialization_section);
385 LeaveCriticalSection (&lock->initialization_section);
388 mono_type_initialization_lock ();
389 if (lock->initializing_tid != tid)
390 g_hash_table_remove (blocked_thread_hash, GUINT_TO_POINTER (tid));
391 --lock->waiting_count;
392 if (lock->waiting_count == 0) {
393 DeleteCriticalSection (&lock->initialization_section);
394 g_hash_table_remove (type_initialization_hash, vtable);
397 if (!vtable->init_failed)
398 vtable->initialized = 1;
399 mono_type_initialization_unlock ();
401 if (vtable->init_failed) {
402 /* Either we were the initializing thread or we waited for the initialization */
404 mono_raise_exception (get_type_init_exception_for_vtable (vtable));
405 return get_type_init_exception_for_vtable (vtable);
408 vtable->initialized = 1;
415 gboolean release_type_locks (gpointer key, gpointer value, gpointer user)
417 MonoVTable *vtable = (MonoVTable*)key;
419 TypeInitializationLock *lock = (TypeInitializationLock*) value;
420 if (lock->initializing_tid == GPOINTER_TO_UINT (user) && !lock->done) {
423 * Have to set this since it cannot be set by the normal code in
424 * mono_runtime_class_init (). In this case, the exception object is not stored,
425 * and get_type_init_exception_for_class () needs to be aware of this.
427 vtable->init_failed = 1;
428 LeaveCriticalSection (&lock->initialization_section);
429 --lock->waiting_count;
430 if (lock->waiting_count == 0) {
431 DeleteCriticalSection (&lock->initialization_section);
440 mono_release_type_locks (MonoInternalThread *thread)
442 mono_type_initialization_lock ();
443 g_hash_table_foreach_remove (type_initialization_hash, release_type_locks, (gpointer)(gsize)(thread->tid));
444 mono_type_initialization_unlock ();
448 default_trampoline (MonoMethod *method)
454 default_jump_trampoline (MonoDomain *domain, MonoMethod *method, gboolean add_sync_wrapper)
456 g_assert_not_reached ();
462 default_remoting_trampoline (MonoDomain *domain, MonoMethod *method, MonoRemotingTarget target)
464 g_error ("remoting not installed");
469 default_delegate_trampoline (MonoClass *klass)
471 g_assert_not_reached ();
475 static MonoTrampoline arch_create_jit_trampoline = default_trampoline;
476 static MonoJumpTrampoline arch_create_jump_trampoline = default_jump_trampoline;
477 static MonoRemotingTrampoline arch_create_remoting_trampoline = default_remoting_trampoline;
478 static MonoDelegateTrampoline arch_create_delegate_trampoline = default_delegate_trampoline;
479 static MonoImtThunkBuilder imt_thunk_builder = NULL;
480 #define ARCH_USE_IMT (imt_thunk_builder != NULL)
481 #if (MONO_IMT_SIZE > 32)
482 #error "MONO_IMT_SIZE cannot be larger than 32"
486 mono_install_callbacks (MonoRuntimeCallbacks *cbs)
488 memcpy (&callbacks, cbs, sizeof (*cbs));
491 MonoRuntimeCallbacks*
492 mono_get_runtime_callbacks (void)
498 mono_install_trampoline (MonoTrampoline func)
500 arch_create_jit_trampoline = func? func: default_trampoline;
504 mono_install_jump_trampoline (MonoJumpTrampoline func)
506 arch_create_jump_trampoline = func? func: default_jump_trampoline;
510 mono_install_remoting_trampoline (MonoRemotingTrampoline func)
512 arch_create_remoting_trampoline = func? func: default_remoting_trampoline;
516 mono_install_delegate_trampoline (MonoDelegateTrampoline func)
518 arch_create_delegate_trampoline = func? func: default_delegate_trampoline;
522 mono_install_imt_thunk_builder (MonoImtThunkBuilder func) {
523 imt_thunk_builder = func;
526 static MonoCompileFunc default_mono_compile_method = NULL;
529 * mono_install_compile_method:
530 * @func: function to install
532 * This is a VM internal routine
535 mono_install_compile_method (MonoCompileFunc func)
537 default_mono_compile_method = func;
541 * mono_compile_method:
542 * @method: The method to compile.
544 * This JIT-compiles the method, and returns the pointer to the native code
548 mono_compile_method (MonoMethod *method)
550 if (!default_mono_compile_method) {
551 g_error ("compile method called on uninitialized runtime");
554 return default_mono_compile_method (method);
558 mono_runtime_create_jump_trampoline (MonoDomain *domain, MonoMethod *method, gboolean add_sync_wrapper)
560 return arch_create_jump_trampoline (domain, method, add_sync_wrapper);
564 mono_runtime_create_delegate_trampoline (MonoClass *klass)
566 return arch_create_delegate_trampoline (klass);
569 static MonoFreeMethodFunc default_mono_free_method = NULL;
572 * mono_install_free_method:
573 * @func: pointer to the MonoFreeMethodFunc used to release a method
575 * This is an internal VM routine, it is used for the engines to
576 * register a handler to release the resources associated with a method.
578 * Methods are freed when no more references to the delegate that holds
582 mono_install_free_method (MonoFreeMethodFunc func)
584 default_mono_free_method = func;
588 * mono_runtime_free_method:
589 * @domain; domain where the method is hosted
590 * @method: method to release
592 * This routine is invoked to free the resources associated with
593 * a method that has been JIT compiled. This is used to discard
594 * methods that were used only temporarily (for example, used in marshalling)
598 mono_runtime_free_method (MonoDomain *domain, MonoMethod *method)
600 if (default_mono_free_method != NULL)
601 default_mono_free_method (domain, method);
603 mono_method_clear_object (domain, method);
605 mono_free_method (method);
609 * The vtables in the root appdomain are assumed to be reachable by other
610 * roots, and we don't use typed allocation in the other domains.
613 /* The sync block is no longer a GC pointer */
614 #define GC_HEADER_BITMAP (0)
616 #define BITMAP_EL_SIZE (sizeof (gsize) * 8)
619 compute_class_bitmap (MonoClass *class, gsize *bitmap, int size, int offset, int *max_set, gboolean static_fields)
621 MonoClassField *field;
627 max_size = mono_class_data_size (class) / sizeof (gpointer);
629 max_size = class->instance_size / sizeof (gpointer);
630 if (max_size > size) {
631 g_assert (offset <= 0);
632 bitmap = g_malloc0 ((max_size + BITMAP_EL_SIZE - 1) / BITMAP_EL_SIZE * sizeof (gsize));
636 for (p = class; p != NULL; p = p->parent) {
637 gpointer iter = NULL;
638 while ((field = mono_class_get_fields (p, &iter))) {
642 if (!(field->type->attrs & (FIELD_ATTRIBUTE_STATIC | FIELD_ATTRIBUTE_HAS_FIELD_RVA)))
644 if (field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
647 if (field->type->attrs & (FIELD_ATTRIBUTE_STATIC | FIELD_ATTRIBUTE_HAS_FIELD_RVA))
650 /* FIXME: should not happen, flag as type load error */
651 if (field->type->byref)
654 if (static_fields && field->offset == -1)
658 pos = field->offset / sizeof (gpointer);
661 type = mono_type_get_underlying_type (field->type);
662 switch (type->type) {
665 case MONO_TYPE_FNPTR:
667 /* only UIntPtr is allowed to be GC-tracked and only in mscorlib */
672 if (class->image != mono_defaults.corlib)
675 case MONO_TYPE_STRING:
676 case MONO_TYPE_SZARRAY:
677 case MONO_TYPE_CLASS:
678 case MONO_TYPE_OBJECT:
679 case MONO_TYPE_ARRAY:
680 g_assert ((field->offset % sizeof(gpointer)) == 0);
682 g_assert (pos < size || pos <= max_size);
683 bitmap [pos / BITMAP_EL_SIZE] |= ((gsize)1) << (pos % BITMAP_EL_SIZE);
684 *max_set = MAX (*max_set, pos);
686 case MONO_TYPE_GENERICINST:
687 if (!mono_type_generic_inst_is_valuetype (type)) {
688 g_assert ((field->offset % sizeof(gpointer)) == 0);
690 bitmap [pos / BITMAP_EL_SIZE] |= ((gsize)1) << (pos % BITMAP_EL_SIZE);
691 *max_set = MAX (*max_set, pos);
696 case MONO_TYPE_VALUETYPE: {
697 MonoClass *fclass = mono_class_from_mono_type (field->type);
698 if (fclass->has_references) {
699 /* remove the object header */
700 compute_class_bitmap (fclass, bitmap, size, pos - (sizeof (MonoObject) / sizeof (gpointer)), max_set, FALSE);
714 case MONO_TYPE_BOOLEAN:
718 g_error ("compute_class_bitmap: Invalid type %x for field %s:%s\n", type->type, mono_type_get_full_name (field->parent), field->name);
730 * similar to the above, but sets the bits in the bitmap for any non-ref field
731 * and ignores static fields
734 compute_class_non_ref_bitmap (MonoClass *class, gsize *bitmap, int size, int offset)
736 MonoClassField *field;
741 max_size = class->instance_size / sizeof (gpointer);
742 if (max_size >= size) {
743 bitmap = g_malloc0 (sizeof (gsize) * ((max_size) + 1));
746 for (p = class; p != NULL; p = p->parent) {
747 gpointer iter = NULL;
748 while ((field = mono_class_get_fields (p, &iter))) {
751 if (field->type->attrs & (FIELD_ATTRIBUTE_STATIC | FIELD_ATTRIBUTE_HAS_FIELD_RVA))
753 /* FIXME: should not happen, flag as type load error */
754 if (field->type->byref)
757 pos = field->offset / sizeof (gpointer);
760 type = mono_type_get_underlying_type (field->type);
761 switch (type->type) {
762 #if SIZEOF_VOID_P == 8
766 case MONO_TYPE_FNPTR:
771 if ((((field->offset + 7) / sizeof (gpointer)) + offset) != pos) {
772 pos2 = ((field->offset + 7) / sizeof (gpointer)) + offset;
773 bitmap [pos2 / BITMAP_EL_SIZE] |= ((gsize)1) << (pos2 % BITMAP_EL_SIZE);
776 #if SIZEOF_VOID_P == 4
780 case MONO_TYPE_FNPTR:
785 if ((((field->offset + 3) / sizeof (gpointer)) + offset) != pos) {
786 pos2 = ((field->offset + 3) / sizeof (gpointer)) + offset;
787 bitmap [pos2 / BITMAP_EL_SIZE] |= ((gsize)1) << (pos2 % BITMAP_EL_SIZE);
793 if ((((field->offset + 1) / sizeof (gpointer)) + offset) != pos) {
794 pos2 = ((field->offset + 1) / sizeof (gpointer)) + offset;
795 bitmap [pos2 / BITMAP_EL_SIZE] |= ((gsize)1) << (pos2 % BITMAP_EL_SIZE);
798 case MONO_TYPE_BOOLEAN:
801 bitmap [pos / BITMAP_EL_SIZE] |= ((gsize)1) << (pos % BITMAP_EL_SIZE);
803 case MONO_TYPE_STRING:
804 case MONO_TYPE_SZARRAY:
805 case MONO_TYPE_CLASS:
806 case MONO_TYPE_OBJECT:
807 case MONO_TYPE_ARRAY:
809 case MONO_TYPE_GENERICINST:
810 if (!mono_type_generic_inst_is_valuetype (type)) {
815 case MONO_TYPE_VALUETYPE: {
816 MonoClass *fclass = mono_class_from_mono_type (field->type);
817 /* remove the object header */
818 compute_class_non_ref_bitmap (fclass, bitmap, size, pos - (sizeof (MonoObject) / sizeof (gpointer)));
822 g_assert_not_reached ();
831 * mono_class_insecure_overlapping:
832 * check if a class with explicit layout has references and non-references
833 * fields overlapping.
835 * Returns: TRUE if it is insecure to load the type.
838 mono_class_insecure_overlapping (MonoClass *klass)
842 gsize default_bitmap [4] = {0};
844 gsize default_nrbitmap [4] = {0};
845 int i, insecure = FALSE;
848 bitmap = compute_class_bitmap (klass, default_bitmap, sizeof (default_bitmap) * 8, 0, &max_set, FALSE);
849 nrbitmap = compute_class_non_ref_bitmap (klass, default_nrbitmap, sizeof (default_nrbitmap) * 8, 0);
851 for (i = 0; i <= max_set; i += sizeof (bitmap [0]) * 8) {
852 int idx = i % (sizeof (bitmap [0]) * 8);
853 if (bitmap [idx] & nrbitmap [idx]) {
858 if (bitmap != default_bitmap)
860 if (nrbitmap != default_nrbitmap)
863 g_print ("class %s.%s in assembly %s has overlapping references\n", klass->name_space, klass->name, klass->image->name);
871 mono_string_alloc (int length)
873 return mono_string_new_size (mono_domain_get (), length);
877 mono_class_compute_gc_descriptor (MonoClass *class)
881 gsize default_bitmap [4] = {0};
882 static gboolean gcj_inited = FALSE;
887 mono_register_jit_icall (mono_object_new_ptrfree, "mono_object_new_ptrfree", mono_create_icall_signature ("object ptr"), FALSE);
888 mono_register_jit_icall (mono_object_new_ptrfree_box, "mono_object_new_ptrfree_box", mono_create_icall_signature ("object ptr"), FALSE);
889 mono_register_jit_icall (mono_object_new_fast, "mono_object_new_fast", mono_create_icall_signature ("object ptr"), FALSE);
890 mono_register_jit_icall (mono_string_alloc, "mono_string_alloc", mono_create_icall_signature ("object int"), FALSE);
892 #ifdef HAVE_GC_GCJ_MALLOC
894 * This is not needed unless the relevant code in mono_get_allocation_ftn () is
898 #ifdef GC_REDIRECT_TO_LOCAL
899 mono_register_jit_icall (GC_local_gcj_malloc, "GC_local_gcj_malloc", mono_create_icall_signature ("object int ptr"), FALSE);
900 mono_register_jit_icall (GC_local_gcj_fast_malloc, "GC_local_gcj_fast_malloc", mono_create_icall_signature ("object int ptr"), FALSE);
902 mono_register_jit_icall (GC_gcj_malloc, "GC_gcj_malloc", mono_create_icall_signature ("object int ptr"), FALSE);
903 mono_register_jit_icall (GC_gcj_fast_malloc, "GC_gcj_fast_malloc", mono_create_icall_signature ("object int ptr"), FALSE);
908 mono_loader_unlock ();
912 mono_class_init (class);
914 if (class->gc_descr_inited)
917 class->gc_descr_inited = TRUE;
918 class->gc_descr = GC_NO_DESCRIPTOR;
920 bitmap = default_bitmap;
921 if (class == mono_defaults.string_class) {
922 class->gc_descr = (gpointer)mono_gc_make_descr_for_string (bitmap, 2);
923 } else if (class->rank) {
924 mono_class_compute_gc_descriptor (class->element_class);
925 if (!class->element_class->valuetype) {
927 class->gc_descr = mono_gc_make_descr_for_array (TRUE, &abm, 1, sizeof (gpointer));
928 /*printf ("new array descriptor: 0x%x for %s.%s\n", class->gc_descr,
929 class->name_space, class->name);*/
931 /* remove the object header */
932 bitmap = compute_class_bitmap (class->element_class, default_bitmap, sizeof (default_bitmap) * 8, - (int)(sizeof (MonoObject) / sizeof (gpointer)), &max_set, FALSE);
933 class->gc_descr = mono_gc_make_descr_for_array (TRUE, bitmap, mono_array_element_size (class) / sizeof (gpointer), mono_array_element_size (class));
934 /*printf ("new vt array descriptor: 0x%x for %s.%s\n", class->gc_descr,
935 class->name_space, class->name);*/
936 if (bitmap != default_bitmap)
940 /*static int count = 0;
943 bitmap = compute_class_bitmap (class, default_bitmap, sizeof (default_bitmap) * 8, 0, &max_set, FALSE);
944 class->gc_descr = (gpointer)mono_gc_make_descr_for_object (bitmap, max_set + 1, class->instance_size);
946 if (class->gc_descr == GC_NO_DESCRIPTOR)
947 g_print ("disabling typed alloc (%d) for %s.%s\n", max_set, class->name_space, class->name);
949 /*printf ("new descriptor: %p 0x%x for %s.%s\n", class->gc_descr, bitmap [0], class->name_space, class->name);*/
950 if (bitmap != default_bitmap)
956 * field_is_special_static:
957 * @fklass: The MonoClass to look up.
958 * @field: The MonoClassField describing the field.
960 * Returns: SPECIAL_STATIC_THREAD if the field is thread static, SPECIAL_STATIC_CONTEXT if it is context static,
961 * SPECIAL_STATIC_NONE otherwise.
964 field_is_special_static (MonoClass *fklass, MonoClassField *field)
966 MonoCustomAttrInfo *ainfo;
968 ainfo = mono_custom_attrs_from_field (fklass, field);
971 for (i = 0; i < ainfo->num_attrs; ++i) {
972 MonoClass *klass = ainfo->attrs [i].ctor->klass;
973 if (klass->image == mono_defaults.corlib) {
974 if (strcmp (klass->name, "ThreadStaticAttribute") == 0) {
975 mono_custom_attrs_free (ainfo);
976 return SPECIAL_STATIC_THREAD;
978 else if (strcmp (klass->name, "ContextStaticAttribute") == 0) {
979 mono_custom_attrs_free (ainfo);
980 return SPECIAL_STATIC_CONTEXT;
984 mono_custom_attrs_free (ainfo);
985 return SPECIAL_STATIC_NONE;
988 static gpointer imt_trampoline = NULL;
991 mono_install_imt_trampoline (gpointer tramp_code)
993 imt_trampoline = tramp_code;
996 #define rot(x,k) (((x)<<(k)) | ((x)>>(32-(k))))
997 #define mix(a,b,c) { \
998 a -= c; a ^= rot(c, 4); c += b; \
999 b -= a; b ^= rot(a, 6); a += c; \
1000 c -= b; c ^= rot(b, 8); b += a; \
1001 a -= c; a ^= rot(c,16); c += b; \
1002 b -= a; b ^= rot(a,19); a += c; \
1003 c -= b; c ^= rot(b, 4); b += a; \
1005 #define final(a,b,c) { \
1006 c ^= b; c -= rot(b,14); \
1007 a ^= c; a -= rot(c,11); \
1008 b ^= a; b -= rot(a,25); \
1009 c ^= b; c -= rot(b,16); \
1010 a ^= c; a -= rot(c,4); \
1011 b ^= a; b -= rot(a,14); \
1012 c ^= b; c -= rot(b,24); \
1016 * mono_method_get_imt_slot:
1018 * The IMT slot is embedded into AOTed code, so this must return the same value
1019 * for the same method across all executions. This means:
1020 * - pointers shouldn't be used as hash values.
1021 * - mono_metadata_str_hash () should be used for hashing strings.
1024 mono_method_get_imt_slot (MonoMethod *method)
1026 MonoMethodSignature *sig;
1028 guint32 *hashes_start, *hashes;
1032 /* This can be used to stress tests the collision code */
1036 * We do this to simplify generic sharing. It will hurt
1037 * performance in cases where a class implements two different
1038 * instantiations of the same generic interface.
1039 * The code in build_imt_slots () depends on this.
1041 if (method->is_inflated)
1042 method = ((MonoMethodInflated*)method)->declaring;
1044 sig = mono_method_signature (method);
1045 hashes_count = sig->param_count + 4;
1046 hashes_start = malloc (hashes_count * sizeof (guint32));
1047 hashes = hashes_start;
1049 if (! MONO_CLASS_IS_INTERFACE (method->klass)) {
1050 printf ("mono_method_get_imt_slot: %s.%s.%s is not an interface MonoMethod\n",
1051 method->klass->name_space, method->klass->name, method->name);
1052 g_assert_not_reached ();
1055 /* Initialize hashes */
1056 hashes [0] = mono_metadata_str_hash (method->klass->name);
1057 hashes [1] = mono_metadata_str_hash (method->klass->name_space);
1058 hashes [2] = mono_metadata_str_hash (method->name);
1059 hashes [3] = mono_metadata_type_hash (sig->ret);
1060 for (i = 0; i < sig->param_count; i++) {
1061 hashes [4 + i] = mono_metadata_type_hash (sig->params [i]);
1064 /* Setup internal state */
1065 a = b = c = 0xdeadbeef + (((guint32)hashes_count)<<2);
1067 /* Handle most of the hashes */
1068 while (hashes_count > 3) {
1077 /* Handle the last 3 hashes (all the case statements fall through) */
1078 switch (hashes_count) {
1079 case 3 : c += hashes [2];
1080 case 2 : b += hashes [1];
1081 case 1 : a += hashes [0];
1083 case 0: /* nothing left to add */
1087 free (hashes_start);
1088 /* Report the result */
1089 return c % MONO_IMT_SIZE;
1098 add_imt_builder_entry (MonoImtBuilderEntry **imt_builder, MonoMethod *method, guint32 *imt_collisions_bitmap, int vtable_slot, int slot_num) {
1099 guint32 imt_slot = mono_method_get_imt_slot (method);
1100 MonoImtBuilderEntry *entry;
1102 if (slot_num >= 0 && imt_slot != slot_num) {
1103 /* we build just a single imt slot and this is not it */
1107 entry = g_malloc0 (sizeof (MonoImtBuilderEntry));
1108 entry->key = method;
1109 entry->value.vtable_slot = vtable_slot;
1110 entry->next = imt_builder [imt_slot];
1111 if (imt_builder [imt_slot] != NULL) {
1112 entry->children = imt_builder [imt_slot]->children + 1;
1113 if (entry->children == 1) {
1114 mono_stats.imt_slots_with_collisions++;
1115 *imt_collisions_bitmap |= (1 << imt_slot);
1118 entry->children = 0;
1119 mono_stats.imt_used_slots++;
1121 imt_builder [imt_slot] = entry;
1124 char *method_name = mono_method_full_name (method, TRUE);
1125 printf ("Added IMT slot for method (%p) %s: imt_slot = %d, vtable_slot = %d, colliding with other %d entries\n",
1126 method, method_name, imt_slot, vtable_slot, entry->children);
1127 g_free (method_name);
1134 print_imt_entry (const char* message, MonoImtBuilderEntry *e, int num) {
1136 MonoMethod *method = e->key;
1137 printf (" * %s [%d]: (%p) '%s.%s.%s'\n",
1141 method->klass->name_space,
1142 method->klass->name,
1145 printf (" * %s: NULL\n", message);
1151 compare_imt_builder_entries (const void *p1, const void *p2) {
1152 MonoImtBuilderEntry *e1 = *(MonoImtBuilderEntry**) p1;
1153 MonoImtBuilderEntry *e2 = *(MonoImtBuilderEntry**) p2;
1155 return (e1->key < e2->key) ? -1 : ((e1->key > e2->key) ? 1 : 0);
1159 imt_emit_ir (MonoImtBuilderEntry **sorted_array, int start, int end, GPtrArray *out_array)
1161 int count = end - start;
1162 int chunk_start = out_array->len;
1165 for (i = start; i < end; ++i) {
1166 MonoIMTCheckItem *item = g_new0 (MonoIMTCheckItem, 1);
1167 item->key = sorted_array [i]->key;
1168 item->value = sorted_array [i]->value;
1169 item->has_target_code = sorted_array [i]->has_target_code;
1170 item->is_equals = TRUE;
1172 item->check_target_idx = out_array->len + 1;
1174 item->check_target_idx = 0;
1175 g_ptr_array_add (out_array, item);
1178 int middle = start + count / 2;
1179 MonoIMTCheckItem *item = g_new0 (MonoIMTCheckItem, 1);
1181 item->key = sorted_array [middle]->key;
1182 item->is_equals = FALSE;
1183 g_ptr_array_add (out_array, item);
1184 imt_emit_ir (sorted_array, start, middle, out_array);
1185 item->check_target_idx = imt_emit_ir (sorted_array, middle, end, out_array);
1191 imt_sort_slot_entries (MonoImtBuilderEntry *entries) {
1192 int number_of_entries = entries->children + 1;
1193 MonoImtBuilderEntry **sorted_array = malloc (sizeof (MonoImtBuilderEntry*) * number_of_entries);
1194 GPtrArray *result = g_ptr_array_new ();
1195 MonoImtBuilderEntry *current_entry;
1198 for (current_entry = entries, i = 0; current_entry != NULL; current_entry = current_entry->next, i++) {
1199 sorted_array [i] = current_entry;
1201 qsort (sorted_array, number_of_entries, sizeof (MonoImtBuilderEntry*), compare_imt_builder_entries);
1203 /*for (i = 0; i < number_of_entries; i++) {
1204 print_imt_entry (" sorted array:", sorted_array [i], i);
1207 imt_emit_ir (sorted_array, 0, number_of_entries, result);
1209 free (sorted_array);
1214 initialize_imt_slot (MonoVTable *vtable, MonoDomain *domain, MonoImtBuilderEntry *imt_builder_entry, gpointer fail_tramp)
1216 if (imt_builder_entry != NULL) {
1217 if (imt_builder_entry->children == 0 && !fail_tramp) {
1218 /* No collision, return the vtable slot contents */
1219 return vtable->vtable [imt_builder_entry->value.vtable_slot];
1221 /* Collision, build the thunk */
1222 GPtrArray *imt_ir = imt_sort_slot_entries (imt_builder_entry);
1225 result = imt_thunk_builder (vtable, domain,
1226 (MonoIMTCheckItem**)imt_ir->pdata, imt_ir->len, fail_tramp);
1227 for (i = 0; i < imt_ir->len; ++i)
1228 g_free (g_ptr_array_index (imt_ir, i));
1229 g_ptr_array_free (imt_ir, TRUE);
1241 static MonoImtBuilderEntry*
1242 get_generic_virtual_entries (MonoDomain *domain, gpointer *vtable_slot);
1245 * LOCKING: requires the loader and domain locks.
1249 build_imt_slots (MonoClass *klass, MonoVTable *vt, MonoDomain *domain, gpointer* imt, GSList *extra_interfaces, int slot_num)
1253 guint32 imt_collisions_bitmap = 0;
1254 MonoImtBuilderEntry **imt_builder = calloc (MONO_IMT_SIZE, sizeof (MonoImtBuilderEntry*));
1255 int method_count = 0;
1256 gboolean record_method_count_for_max_collisions = FALSE;
1257 gboolean has_generic_virtual = FALSE, has_variant_iface = FALSE;
1260 printf ("Building IMT for class %s.%s slot %d\n", klass->name_space, klass->name, slot_num);
1262 for (i = 0; i < klass->interface_offsets_count; ++i) {
1263 MonoClass *iface = klass->interfaces_packed [i];
1264 int interface_offset = klass->interface_offsets_packed [i];
1265 int method_slot_in_interface, vt_slot;
1267 if (mono_class_has_variant_generic_params (iface))
1268 has_variant_iface = TRUE;
1270 vt_slot = interface_offset;
1271 for (method_slot_in_interface = 0; method_slot_in_interface < iface->method.count; method_slot_in_interface++) {
1274 if (slot_num >= 0 && iface->is_inflated) {
1276 * The imt slot of the method is the same as for its declaring method,
1277 * see the comment in mono_method_get_imt_slot (), so we can
1278 * avoid inflating methods which will be discarded by
1279 * add_imt_builder_entry anyway.
1281 method = mono_class_get_method_by_index (iface->generic_class->container_class, method_slot_in_interface);
1282 if (mono_method_get_imt_slot (method) != slot_num) {
1287 method = mono_class_get_method_by_index (iface, method_slot_in_interface);
1288 if (method->is_generic) {
1289 has_generic_virtual = TRUE;
1294 if (!(method->flags & METHOD_ATTRIBUTE_STATIC)) {
1295 add_imt_builder_entry (imt_builder, method, &imt_collisions_bitmap, vt_slot, slot_num);
1300 if (extra_interfaces) {
1301 int interface_offset = klass->vtable_size;
1303 for (list_item = extra_interfaces; list_item != NULL; list_item=list_item->next) {
1304 MonoClass* iface = list_item->data;
1305 int method_slot_in_interface;
1306 for (method_slot_in_interface = 0; method_slot_in_interface < iface->method.count; method_slot_in_interface++) {
1307 MonoMethod *method = mono_class_get_method_by_index (iface, method_slot_in_interface);
1308 add_imt_builder_entry (imt_builder, method, &imt_collisions_bitmap, interface_offset + method_slot_in_interface, slot_num);
1310 interface_offset += iface->method.count;
1313 for (i = 0; i < MONO_IMT_SIZE; ++i) {
1314 /* overwrite the imt slot only if we're building all the entries or if
1315 * we're building this specific one
1317 if (slot_num < 0 || i == slot_num) {
1318 MonoImtBuilderEntry *entries = get_generic_virtual_entries (domain, &imt [i]);
1321 if (imt_builder [i]) {
1322 MonoImtBuilderEntry *entry;
1324 /* Link entries with imt_builder [i] */
1325 for (entry = entries; entry->next; entry = entry->next) {
1327 MonoMethod *method = (MonoMethod*)entry->key;
1328 char *method_name = mono_method_full_name (method, TRUE);
1329 printf ("Added extra entry for method (%p) %s: imt_slot = %d\n", method, method_name, i);
1330 g_free (method_name);
1333 entry->next = imt_builder [i];
1334 entries->children += imt_builder [i]->children + 1;
1336 imt_builder [i] = entries;
1339 if (has_generic_virtual || has_variant_iface) {
1341 * There might be collisions later when the the thunk is expanded.
1343 imt_collisions_bitmap |= (1 << i);
1346 * The IMT thunk might be called with an instance of one of the
1347 * generic virtual methods, so has to fallback to the IMT trampoline.
1349 imt [i] = initialize_imt_slot (vt, domain, imt_builder [i], imt_trampoline);
1351 imt [i] = initialize_imt_slot (vt, domain, imt_builder [i], NULL);
1354 printf ("initialize_imt_slot[%d]: %p methods %d\n", i, imt [i], imt_builder [i]->children + 1);
1358 if (imt_builder [i] != NULL) {
1359 int methods_in_slot = imt_builder [i]->children + 1;
1360 if (methods_in_slot > mono_stats.imt_max_collisions_in_slot) {
1361 mono_stats.imt_max_collisions_in_slot = methods_in_slot;
1362 record_method_count_for_max_collisions = TRUE;
1364 method_count += methods_in_slot;
1368 mono_stats.imt_number_of_methods += method_count;
1369 if (record_method_count_for_max_collisions) {
1370 mono_stats.imt_method_count_when_max_collisions = method_count;
1373 for (i = 0; i < MONO_IMT_SIZE; i++) {
1374 MonoImtBuilderEntry* entry = imt_builder [i];
1375 while (entry != NULL) {
1376 MonoImtBuilderEntry* next = entry->next;
1382 /* we OR the bitmap since we may build just a single imt slot at a time */
1383 vt->imt_collisions_bitmap |= imt_collisions_bitmap;
1387 build_imt (MonoClass *klass, MonoVTable *vt, MonoDomain *domain, gpointer* imt, GSList *extra_interfaces) {
1388 build_imt_slots (klass, vt, domain, imt, extra_interfaces, -1);
1392 * mono_vtable_build_imt_slot:
1393 * @vtable: virtual object table struct
1394 * @imt_slot: slot in the IMT table
1396 * Fill the given @imt_slot in the IMT table of @vtable with
1397 * a trampoline or a thunk for the case of collisions.
1398 * This is part of the internal mono API.
1400 * LOCKING: Take the domain lock.
1403 mono_vtable_build_imt_slot (MonoVTable* vtable, int imt_slot)
1405 gpointer *imt = (gpointer*)vtable;
1406 imt -= MONO_IMT_SIZE;
1407 g_assert (imt_slot >= 0 && imt_slot < MONO_IMT_SIZE);
1409 /* no support for extra interfaces: the proxy objects will need
1410 * to build the complete IMT
1411 * Update and heck needs to ahppen inside the proper domain lock, as all
1412 * the changes made to a MonoVTable.
1414 mono_loader_lock (); /*FIXME build_imt_slots requires the loader lock.*/
1415 mono_domain_lock (vtable->domain);
1416 /* we change the slot only if it wasn't changed from the generic imt trampoline already */
1417 if (imt [imt_slot] == imt_trampoline)
1418 build_imt_slots (vtable->klass, vtable, vtable->domain, imt, NULL, imt_slot);
1419 mono_domain_unlock (vtable->domain);
1420 mono_loader_unlock ();
1425 * The first two free list entries both belong to the wait list: The
1426 * first entry is the pointer to the head of the list and the second
1427 * entry points to the last element. That way appending and removing
1428 * the first element are both O(1) operations.
1430 #ifdef MONO_SMALL_CONFIG
1431 #define NUM_FREE_LISTS 6
1433 #define NUM_FREE_LISTS 12
1435 #define FIRST_FREE_LIST_SIZE 64
1436 #define MAX_WAIT_LENGTH 50
1437 #define THUNK_THRESHOLD 10
1440 * LOCKING: The domain lock must be held.
1443 init_thunk_free_lists (MonoDomain *domain)
1445 if (domain->thunk_free_lists)
1447 domain->thunk_free_lists = mono_domain_alloc0 (domain, sizeof (gpointer) * NUM_FREE_LISTS);
1451 list_index_for_size (int item_size)
1454 int size = FIRST_FREE_LIST_SIZE;
1456 while (item_size > size && i < NUM_FREE_LISTS - 1) {
1465 * mono_method_alloc_generic_virtual_thunk:
1467 * @size: size in bytes
1469 * Allocs size bytes to be used for the code of a generic virtual
1470 * thunk. It's either allocated from the domain's code manager or
1471 * reused from a previously invalidated piece.
1473 * LOCKING: The domain lock must be held.
1476 mono_method_alloc_generic_virtual_thunk (MonoDomain *domain, int size)
1478 static gboolean inited = FALSE;
1479 static int generic_virtual_thunks_size = 0;
1483 MonoThunkFreeList **l;
1485 init_thunk_free_lists (domain);
1487 size += sizeof (guint32);
1488 if (size < sizeof (MonoThunkFreeList))
1489 size = sizeof (MonoThunkFreeList);
1491 i = list_index_for_size (size);
1492 for (l = &domain->thunk_free_lists [i]; *l; l = &(*l)->next) {
1493 if ((*l)->size >= size) {
1494 MonoThunkFreeList *item = *l;
1496 return ((guint32*)item) + 1;
1500 /* no suitable item found - search lists of larger sizes */
1501 while (++i < NUM_FREE_LISTS) {
1502 MonoThunkFreeList *item = domain->thunk_free_lists [i];
1505 g_assert (item->size > size);
1506 domain->thunk_free_lists [i] = item->next;
1507 return ((guint32*)item) + 1;
1510 /* still nothing found - allocate it */
1512 mono_counters_register ("Generic virtual thunk bytes",
1513 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &generic_virtual_thunks_size);
1516 generic_virtual_thunks_size += size;
1518 p = mono_domain_code_reserve (domain, size);
1525 * LOCKING: The domain lock must be held.
1528 invalidate_generic_virtual_thunk (MonoDomain *domain, gpointer code)
1531 MonoThunkFreeList *l = (MonoThunkFreeList*)(p - 1);
1533 init_thunk_free_lists (domain);
1535 while (domain->thunk_free_lists [0] && domain->thunk_free_lists [0]->length >= MAX_WAIT_LENGTH) {
1536 MonoThunkFreeList *item = domain->thunk_free_lists [0];
1537 int length = item->length;
1540 /* unlink the first item from the wait list */
1541 domain->thunk_free_lists [0] = item->next;
1542 domain->thunk_free_lists [0]->length = length - 1;
1544 i = list_index_for_size (item->size);
1546 /* put it in the free list */
1547 item->next = domain->thunk_free_lists [i];
1548 domain->thunk_free_lists [i] = item;
1552 if (domain->thunk_free_lists [1]) {
1553 domain->thunk_free_lists [1] = domain->thunk_free_lists [1]->next = l;
1554 domain->thunk_free_lists [0]->length++;
1556 g_assert (!domain->thunk_free_lists [0]);
1558 domain->thunk_free_lists [0] = domain->thunk_free_lists [1] = l;
1559 domain->thunk_free_lists [0]->length = 1;
1563 typedef struct _GenericVirtualCase {
1567 struct _GenericVirtualCase *next;
1568 } GenericVirtualCase;
1571 * get_generic_virtual_entries:
1573 * Return IMT entries for the generic virtual method instances and
1574 * variant interface methods for vtable slot
1577 static MonoImtBuilderEntry*
1578 get_generic_virtual_entries (MonoDomain *domain, gpointer *vtable_slot)
1580 GenericVirtualCase *list;
1581 MonoImtBuilderEntry *entries;
1583 mono_domain_lock (domain);
1584 if (!domain->generic_virtual_cases)
1585 domain->generic_virtual_cases = g_hash_table_new (mono_aligned_addr_hash, NULL);
1587 list = g_hash_table_lookup (domain->generic_virtual_cases, vtable_slot);
1590 for (; list; list = list->next) {
1591 MonoImtBuilderEntry *entry;
1593 if (list->count < THUNK_THRESHOLD)
1596 entry = g_new0 (MonoImtBuilderEntry, 1);
1597 entry->key = list->method;
1598 entry->value.target_code = mono_get_addr_from_ftnptr (list->code);
1599 entry->has_target_code = 1;
1601 entry->children = entries->children + 1;
1602 entry->next = entries;
1606 mono_domain_unlock (domain);
1608 /* FIXME: Leaking memory ? */
1613 * mono_method_add_generic_virtual_invocation:
1615 * @vtable_slot: pointer to the vtable slot
1616 * @method: the inflated generic virtual method
1617 * @code: the method's code
1619 * Registers a call via unmanaged code to a generic virtual method
1620 * instantiation or variant interface method. If the number of calls reaches a threshold
1621 * (THUNK_THRESHOLD), the method is added to the vtable slot's generic
1622 * virtual method thunk.
1625 mono_method_add_generic_virtual_invocation (MonoDomain *domain, MonoVTable *vtable,
1626 gpointer *vtable_slot,
1627 MonoMethod *method, gpointer code)
1629 static gboolean inited = FALSE;
1630 static int num_added = 0;
1632 GenericVirtualCase *gvc, *list;
1633 MonoImtBuilderEntry *entries;
1637 mono_domain_lock (domain);
1638 if (!domain->generic_virtual_cases)
1639 domain->generic_virtual_cases = g_hash_table_new (mono_aligned_addr_hash, NULL);
1641 /* Check whether the case was already added */
1642 list = g_hash_table_lookup (domain->generic_virtual_cases, vtable_slot);
1645 if (gvc->method == method)
1650 /* If not found, make a new one */
1652 gvc = mono_domain_alloc (domain, sizeof (GenericVirtualCase));
1653 gvc->method = method;
1656 gvc->next = g_hash_table_lookup (domain->generic_virtual_cases, vtable_slot);
1658 g_hash_table_insert (domain->generic_virtual_cases, vtable_slot, gvc);
1661 mono_counters_register ("Generic virtual cases", MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &num_added);
1667 if (++gvc->count == THUNK_THRESHOLD) {
1668 gpointer *old_thunk = *vtable_slot;
1669 gpointer vtable_trampoline = callbacks.get_vtable_trampoline ? callbacks.get_vtable_trampoline ((gpointer*)vtable_slot - (gpointer*)vtable) : NULL;
1671 if ((gpointer)vtable_slot < (gpointer)vtable)
1672 /* Force the rebuild of the thunk at the next call */
1673 *vtable_slot = imt_trampoline;
1675 entries = get_generic_virtual_entries (domain, vtable_slot);
1677 sorted = imt_sort_slot_entries (entries);
1679 *vtable_slot = imt_thunk_builder (NULL, domain, (MonoIMTCheckItem**)sorted->pdata, sorted->len,
1683 MonoImtBuilderEntry *next = entries->next;
1688 for (i = 0; i < sorted->len; ++i)
1689 g_free (g_ptr_array_index (sorted, i));
1690 g_ptr_array_free (sorted, TRUE);
1693 if (old_thunk != vtable_trampoline && old_thunk != imt_trampoline)
1694 invalidate_generic_virtual_thunk (domain, old_thunk);
1697 mono_domain_unlock (domain);
1700 static MonoVTable *mono_class_create_runtime_vtable (MonoDomain *domain, MonoClass *class, gboolean raise_on_error);
1703 * mono_class_vtable:
1704 * @domain: the application domain
1705 * @class: the class to initialize
1707 * VTables are domain specific because we create domain specific code, and
1708 * they contain the domain specific static class data.
1709 * On failure, NULL is returned, and class->exception_type is set.
1712 mono_class_vtable (MonoDomain *domain, MonoClass *class)
1714 return mono_class_vtable_full (domain, class, FALSE);
1718 * mono_class_vtable_full:
1719 * @domain: the application domain
1720 * @class: the class to initialize
1721 * @raise_on_error if an exception should be raised on failure or not
1723 * VTables are domain specific because we create domain specific code, and
1724 * they contain the domain specific static class data.
1727 mono_class_vtable_full (MonoDomain *domain, MonoClass *class, gboolean raise_on_error)
1729 MonoClassRuntimeInfo *runtime_info;
1733 if (class->exception_type) {
1735 mono_raise_exception (mono_class_get_exception_for_failure (class));
1739 /* this check can be inlined in jitted code, too */
1740 runtime_info = class->runtime_info;
1741 if (runtime_info && runtime_info->max_domain >= domain->domain_id && runtime_info->domain_vtables [domain->domain_id])
1742 return runtime_info->domain_vtables [domain->domain_id];
1743 return mono_class_create_runtime_vtable (domain, class, raise_on_error);
1747 * mono_class_try_get_vtable:
1748 * @domain: the application domain
1749 * @class: the class to initialize
1751 * This function tries to get the associated vtable from @class if
1752 * it was already created.
1755 mono_class_try_get_vtable (MonoDomain *domain, MonoClass *class)
1757 MonoClassRuntimeInfo *runtime_info;
1761 runtime_info = class->runtime_info;
1762 if (runtime_info && runtime_info->max_domain >= domain->domain_id && runtime_info->domain_vtables [domain->domain_id])
1763 return runtime_info->domain_vtables [domain->domain_id];
1768 mono_class_create_runtime_vtable (MonoDomain *domain, MonoClass *class, gboolean raise_on_error)
1771 MonoClassRuntimeInfo *runtime_info, *old_info;
1772 MonoClassField *field;
1775 int imt_table_bytes = 0;
1776 guint32 vtable_size, class_size;
1779 gpointer *interface_offsets;
1781 mono_loader_lock (); /*FIXME mono_class_init acquires it*/
1782 mono_domain_lock (domain);
1783 runtime_info = class->runtime_info;
1784 if (runtime_info && runtime_info->max_domain >= domain->domain_id && runtime_info->domain_vtables [domain->domain_id]) {
1785 mono_domain_unlock (domain);
1786 mono_loader_unlock ();
1787 return runtime_info->domain_vtables [domain->domain_id];
1789 if (!class->inited || class->exception_type) {
1790 if (!mono_class_init (class) || class->exception_type) {
1791 mono_domain_unlock (domain);
1792 mono_loader_unlock ();
1794 mono_raise_exception (mono_class_get_exception_for_failure (class));
1799 /* Array types require that their element type be valid*/
1800 if (class->byval_arg.type == MONO_TYPE_ARRAY || class->byval_arg.type == MONO_TYPE_SZARRAY) {
1801 MonoClass *element_class = class->element_class;
1802 if (!element_class->inited)
1803 mono_class_init (element_class);
1805 /*mono_class_init can leave the vtable layout to be lazily done and we can't afford this here*/
1806 if (element_class->exception_type == MONO_EXCEPTION_NONE && !element_class->vtable_size)
1807 mono_class_setup_vtable (element_class);
1809 if (element_class->exception_type != MONO_EXCEPTION_NONE) {
1810 /*Can happen if element_class only got bad after mono_class_setup_vtable*/
1811 if (class->exception_type == MONO_EXCEPTION_NONE)
1812 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1813 mono_domain_unlock (domain);
1814 mono_loader_unlock ();
1816 mono_raise_exception (mono_class_get_exception_for_failure (class));
1822 * For some classes, mono_class_init () already computed class->vtable_size, and
1823 * that is all that is needed because of the vtable trampolines.
1825 if (!class->vtable_size)
1826 mono_class_setup_vtable (class);
1828 if (class->exception_type) {
1829 mono_domain_unlock (domain);
1830 mono_loader_unlock ();
1832 mono_raise_exception (mono_class_get_exception_for_failure (class));
1837 vtable_size = MONO_SIZEOF_VTABLE + class->vtable_size * sizeof (gpointer);
1838 if (class->interface_offsets_count) {
1839 imt_table_bytes = sizeof (gpointer) * (MONO_IMT_SIZE);
1840 vtable_size += sizeof (gpointer) * (MONO_IMT_SIZE);
1841 mono_stats.imt_number_of_tables++;
1842 mono_stats.imt_tables_size += (sizeof (gpointer) * MONO_IMT_SIZE);
1845 vtable_size = sizeof (gpointer) * (class->max_interface_id + 1) +
1846 MONO_SIZEOF_VTABLE + class->vtable_size * sizeof (gpointer);
1849 mono_stats.used_class_count++;
1850 mono_stats.class_vtable_size += vtable_size;
1851 interface_offsets = mono_domain_alloc0 (domain, vtable_size);
1854 vt = (MonoVTable*) ((char*)interface_offsets + imt_table_bytes);
1856 vt = (MonoVTable*) (interface_offsets + class->max_interface_id + 1);
1858 vt->rank = class->rank;
1859 vt->domain = domain;
1861 mono_class_compute_gc_descriptor (class);
1863 * We can't use typed allocation in the non-root domains, since the
1864 * collector needs the GC descriptor stored in the vtable even after
1865 * the mempool containing the vtable is destroyed when the domain is
1866 * unloaded. An alternative might be to allocate vtables in the GC
1867 * heap, but this does not seem to work (it leads to crashes inside
1868 * libgc). If that approach is tried, two gc descriptors need to be
1869 * allocated for each class: one for the root domain, and one for all
1870 * other domains. The second descriptor should contain a bit for the
1871 * vtable field in MonoObject, since we can no longer assume the
1872 * vtable is reachable by other roots after the appdomain is unloaded.
1874 #ifdef HAVE_BOEHM_GC
1875 if (domain != mono_get_root_domain () && !mono_dont_free_domains)
1876 vt->gc_descr = GC_NO_DESCRIPTOR;
1879 vt->gc_descr = class->gc_descr;
1881 if ((class_size = mono_class_data_size (class))) {
1882 if (class->has_static_refs) {
1883 gpointer statics_gc_descr;
1885 gsize default_bitmap [4] = {0};
1888 bitmap = compute_class_bitmap (class, default_bitmap, sizeof (default_bitmap) * 8, 0, &max_set, TRUE);
1889 /*g_print ("bitmap 0x%x for %s.%s (size: %d)\n", bitmap [0], class->name_space, class->name, class_size);*/
1890 statics_gc_descr = mono_gc_make_descr_from_bitmap (bitmap, max_set + 1);
1891 vt->data = mono_gc_alloc_fixed (class_size, statics_gc_descr);
1892 mono_domain_add_class_static_data (domain, class, vt->data, NULL);
1893 if (bitmap != default_bitmap)
1896 vt->data = mono_domain_alloc0 (domain, class_size);
1898 mono_stats.class_static_data_size += class_size;
1903 while ((field = mono_class_get_fields (class, &iter))) {
1904 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC))
1906 if (mono_field_is_deleted (field))
1908 if (!(field->type->attrs & FIELD_ATTRIBUTE_LITERAL)) {
1909 gint32 special_static = class->no_special_static_fields ? SPECIAL_STATIC_NONE : field_is_special_static (class, field);
1910 if (special_static != SPECIAL_STATIC_NONE) {
1911 guint32 size, offset;
1913 gsize default_bitmap [4] = {0};
1917 if (mono_type_is_reference (field->type)) {
1918 default_bitmap [0] = 1;
1920 bitmap = default_bitmap;
1921 } else if (mono_type_is_struct (field->type)) {
1922 fclass = mono_class_from_mono_type (field->type);
1923 bitmap = compute_class_bitmap (fclass, default_bitmap, sizeof (default_bitmap) * 8, 0, &max_set, FALSE);
1925 default_bitmap [0] = 0;
1927 bitmap = default_bitmap;
1929 size = mono_type_size (field->type, &align);
1930 offset = mono_alloc_special_static_data (special_static, size, align, bitmap, max_set);
1931 if (!domain->special_static_fields)
1932 domain->special_static_fields = g_hash_table_new (NULL, NULL);
1933 g_hash_table_insert (domain->special_static_fields, field, GUINT_TO_POINTER (offset));
1934 if (bitmap != default_bitmap)
1937 * This marks the field as special static to speed up the
1938 * checks in mono_field_static_get/set_value ().
1944 if ((field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA)) {
1945 MonoClass *fklass = mono_class_from_mono_type (field->type);
1946 const char *data = mono_field_get_data (field);
1948 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT));
1949 t = (char*)vt->data + field->offset;
1950 /* some fields don't really have rva, they are just zeroed (bss? bug #343083) */
1953 if (fklass->valuetype) {
1954 memcpy (t, data, mono_class_value_size (fklass, NULL));
1956 /* it's a pointer type: add check */
1957 g_assert ((fklass->byval_arg.type == MONO_TYPE_PTR) || (fklass->byval_arg.type == MONO_TYPE_FNPTR));
1964 vt->max_interface_id = class->max_interface_id;
1965 vt->interface_bitmap = class->interface_bitmap;
1967 //printf ("Initializing VT for class %s (interface_offsets_count = %d)\n",
1968 // class->name, class->interface_offsets_count);
1970 if (! ARCH_USE_IMT) {
1971 /* initialize interface offsets */
1972 for (i = 0; i < class->interface_offsets_count; ++i) {
1973 int interface_id = class->interfaces_packed [i]->interface_id;
1974 int slot = class->interface_offsets_packed [i];
1975 interface_offsets [class->max_interface_id - interface_id] = &(vt->vtable [slot]);
1979 /* class_vtable_array keeps an array of created vtables
1981 g_ptr_array_add (domain->class_vtable_array, vt);
1982 /* class->runtime_info is protected by the loader lock, both when
1983 * it it enlarged and when it is stored info.
1986 old_info = class->runtime_info;
1987 if (old_info && old_info->max_domain >= domain->domain_id) {
1988 /* someone already created a large enough runtime info */
1989 mono_memory_barrier ();
1990 old_info->domain_vtables [domain->domain_id] = vt;
1992 int new_size = domain->domain_id;
1994 new_size = MAX (new_size, old_info->max_domain);
1996 /* make the new size a power of two */
1998 while (new_size > i)
2001 /* this is a bounded memory retention issue: may want to
2002 * handle it differently when we'll have a rcu-like system.
2004 runtime_info = mono_image_alloc0 (class->image, MONO_SIZEOF_CLASS_RUNTIME_INFO + new_size * sizeof (gpointer));
2005 runtime_info->max_domain = new_size - 1;
2006 /* copy the stuff from the older info */
2008 memcpy (runtime_info->domain_vtables, old_info->domain_vtables, (old_info->max_domain + 1) * sizeof (gpointer));
2010 runtime_info->domain_vtables [domain->domain_id] = vt;
2012 mono_memory_barrier ();
2013 class->runtime_info = runtime_info;
2016 /* Initialize vtable */
2017 if (callbacks.get_vtable_trampoline) {
2018 // This also covers the AOT case
2019 for (i = 0; i < class->vtable_size; ++i) {
2020 vt->vtable [i] = callbacks.get_vtable_trampoline (i);
2023 mono_class_setup_vtable (class);
2025 for (i = 0; i < class->vtable_size; ++i) {
2028 if ((cm = class->vtable [i]))
2029 vt->vtable [i] = arch_create_jit_trampoline (cm);
2033 if (ARCH_USE_IMT && imt_table_bytes) {
2034 /* Now that the vtable is full, we can actually fill up the IMT */
2035 if (imt_trampoline) {
2036 /* lazy construction of the IMT entries enabled */
2037 for (i = 0; i < MONO_IMT_SIZE; ++i)
2038 interface_offsets [i] = imt_trampoline;
2040 build_imt (class, vt, domain, interface_offsets, NULL);
2044 mono_domain_unlock (domain);
2045 mono_loader_unlock ();
2047 /* Initialization is now complete, we can throw if the InheritanceDemand aren't satisfied */
2048 if (mono_is_security_manager_active () && (class->exception_type == MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND) && raise_on_error)
2049 mono_raise_exception (mono_class_get_exception_for_failure (class));
2051 /* make sure the parent is initialized */
2052 /*FIXME shouldn't this fail the current type?*/
2054 mono_class_vtable_full (domain, class->parent, raise_on_error);
2056 /*FIXME check for OOM*/
2057 vt->type = mono_type_get_object (domain, &class->byval_arg);
2059 if (mono_object_get_class (vt->type) != mono_defaults.monotype_class) {
2060 static void *type_desc = NULL;
2064 type_desc = mono_gc_make_descr_from_bitmap (&bmap, 1);
2067 /* This is unregistered in
2068 unregister_vtable_reflection_type() in
2070 mono_gc_register_root ((char*)&vt->type, sizeof (gpointer), type_desc);
2073 if (class->contextbound)
2082 * mono_class_proxy_vtable:
2083 * @domain: the application domain
2084 * @remove_class: the remote class
2086 * Creates a vtable for transparent proxies. It is basically
2087 * a copy of the real vtable of the class wrapped in @remote_class,
2088 * but all function pointers invoke the remoting functions, and
2089 * vtable->klass points to the transparent proxy class, and not to @class.
2092 mono_class_proxy_vtable (MonoDomain *domain, MonoRemoteClass *remote_class, MonoRemotingTarget target_type)
2095 MonoVTable *vt, *pvt;
2096 int i, j, vtsize, max_interface_id, extra_interface_vtsize = 0;
2098 GSList *extra_interfaces = NULL;
2099 MonoClass *class = remote_class->proxy_class;
2100 gpointer *interface_offsets;
2104 #ifdef COMPRESSED_INTERFACE_BITMAP
2108 vt = mono_class_vtable (domain, class);
2109 g_assert (vt); /*FIXME property handle failure*/
2110 max_interface_id = vt->max_interface_id;
2112 /* Calculate vtable space for extra interfaces */
2113 for (j = 0; j < remote_class->interface_count; j++) {
2114 MonoClass* iclass = remote_class->interfaces[j];
2118 /*FIXME test for interfaces with variant generic arguments*/
2119 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, iclass->interface_id))
2120 continue; /* interface implemented by the class */
2121 if (g_slist_find (extra_interfaces, iclass))
2124 extra_interfaces = g_slist_prepend (extra_interfaces, iclass);
2126 method_count = mono_class_num_methods (iclass);
2128 ifaces = mono_class_get_implemented_interfaces (iclass, &error);
2129 g_assert (mono_error_ok (&error)); /*FIXME do proper error handling*/
2131 for (i = 0; i < ifaces->len; ++i) {
2132 MonoClass *ic = g_ptr_array_index (ifaces, i);
2133 /*FIXME test for interfaces with variant generic arguments*/
2134 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, ic->interface_id))
2135 continue; /* interface implemented by the class */
2136 if (g_slist_find (extra_interfaces, ic))
2138 extra_interfaces = g_slist_prepend (extra_interfaces, ic);
2139 method_count += mono_class_num_methods (ic);
2141 g_ptr_array_free (ifaces, TRUE);
2144 extra_interface_vtsize += method_count * sizeof (gpointer);
2145 if (iclass->max_interface_id > max_interface_id) max_interface_id = iclass->max_interface_id;
2149 mono_stats.imt_number_of_tables++;
2150 mono_stats.imt_tables_size += (sizeof (gpointer) * MONO_IMT_SIZE);
2151 vtsize = sizeof (gpointer) * (MONO_IMT_SIZE) +
2152 MONO_SIZEOF_VTABLE + class->vtable_size * sizeof (gpointer);
2154 vtsize = sizeof (gpointer) * (max_interface_id + 1) +
2155 MONO_SIZEOF_VTABLE + class->vtable_size * sizeof (gpointer);
2158 mono_stats.class_vtable_size += vtsize + extra_interface_vtsize;
2160 interface_offsets = mono_domain_alloc0 (domain, vtsize + extra_interface_vtsize);
2162 pvt = (MonoVTable*) (interface_offsets + MONO_IMT_SIZE);
2164 pvt = (MonoVTable*) (interface_offsets + max_interface_id + 1);
2165 memcpy (pvt, vt, MONO_SIZEOF_VTABLE + class->vtable_size * sizeof (gpointer));
2167 pvt->klass = mono_defaults.transparent_proxy_class;
2168 /* we need to keep the GC descriptor for a transparent proxy or we confuse the precise GC */
2169 pvt->gc_descr = mono_defaults.transparent_proxy_class->gc_descr;
2171 /* initialize vtable */
2172 mono_class_setup_vtable (class);
2173 for (i = 0; i < class->vtable_size; ++i) {
2176 if ((cm = class->vtable [i]))
2177 pvt->vtable [i] = arch_create_remoting_trampoline (domain, cm, target_type);
2179 pvt->vtable [i] = NULL;
2182 if (class->flags & TYPE_ATTRIBUTE_ABSTRACT) {
2183 /* create trampolines for abstract methods */
2184 for (k = class; k; k = k->parent) {
2186 gpointer iter = NULL;
2187 while ((m = mono_class_get_methods (k, &iter)))
2188 if (!pvt->vtable [m->slot])
2189 pvt->vtable [m->slot] = arch_create_remoting_trampoline (domain, m, target_type);
2193 pvt->max_interface_id = max_interface_id;
2194 bsize = sizeof (guint8) * (max_interface_id/8 + 1 );
2195 #ifdef COMPRESSED_INTERFACE_BITMAP
2196 bitmap = g_malloc0 (bsize);
2198 bitmap = mono_domain_alloc0 (domain, bsize);
2201 if (! ARCH_USE_IMT) {
2202 /* initialize interface offsets */
2203 for (i = 0; i < class->interface_offsets_count; ++i) {
2204 int interface_id = class->interfaces_packed [i]->interface_id;
2205 int slot = class->interface_offsets_packed [i];
2206 interface_offsets [class->max_interface_id - interface_id] = &(pvt->vtable [slot]);
2209 for (i = 0; i < class->interface_offsets_count; ++i) {
2210 int interface_id = class->interfaces_packed [i]->interface_id;
2211 bitmap [interface_id >> 3] |= (1 << (interface_id & 7));
2214 if (extra_interfaces) {
2215 int slot = class->vtable_size;
2221 /* Create trampolines for the methods of the interfaces */
2222 for (list_item = extra_interfaces; list_item != NULL; list_item=list_item->next) {
2223 interf = list_item->data;
2225 if (! ARCH_USE_IMT) {
2226 interface_offsets [max_interface_id - interf->interface_id] = &pvt->vtable [slot];
2228 bitmap [interf->interface_id >> 3] |= (1 << (interf->interface_id & 7));
2232 while ((cm = mono_class_get_methods (interf, &iter)))
2233 pvt->vtable [slot + j++] = arch_create_remoting_trampoline (domain, cm, target_type);
2235 slot += mono_class_num_methods (interf);
2237 if (! ARCH_USE_IMT) {
2238 g_slist_free (extra_interfaces);
2243 /* Now that the vtable is full, we can actually fill up the IMT */
2244 build_imt (class, pvt, domain, interface_offsets, extra_interfaces);
2245 if (extra_interfaces) {
2246 g_slist_free (extra_interfaces);
2250 #ifdef COMPRESSED_INTERFACE_BITMAP
2251 bcsize = mono_compress_bitmap (NULL, bitmap, bsize);
2252 pvt->interface_bitmap = mono_domain_alloc0 (domain, bcsize);
2253 mono_compress_bitmap (pvt->interface_bitmap, bitmap, bsize);
2256 pvt->interface_bitmap = bitmap;
2262 * mono_class_field_is_special_static:
2264 * Returns whether @field is a thread/context static field.
2267 mono_class_field_is_special_static (MonoClassField *field)
2269 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC))
2271 if (mono_field_is_deleted (field))
2273 if (!(field->type->attrs & FIELD_ATTRIBUTE_LITERAL)) {
2274 if (field_is_special_static (field->parent, field) != SPECIAL_STATIC_NONE)
2281 * mono_class_has_special_static_fields:
2283 * Returns whenever @klass has any thread/context static fields.
2286 mono_class_has_special_static_fields (MonoClass *klass)
2288 MonoClassField *field;
2292 while ((field = mono_class_get_fields (klass, &iter))) {
2293 g_assert (field->parent == klass);
2294 if (mono_class_field_is_special_static (field))
2302 * create_remote_class_key:
2303 * Creates an array of pointers that can be used as a hash key for a remote class.
2304 * The first element of the array is the number of pointers.
2307 create_remote_class_key (MonoRemoteClass *remote_class, MonoClass *extra_class)
2312 if (remote_class == NULL) {
2313 if (extra_class->flags & TYPE_ATTRIBUTE_INTERFACE) {
2314 key = g_malloc (sizeof(gpointer) * 3);
2315 key [0] = GINT_TO_POINTER (2);
2316 key [1] = mono_defaults.marshalbyrefobject_class;
2317 key [2] = extra_class;
2319 key = g_malloc (sizeof(gpointer) * 2);
2320 key [0] = GINT_TO_POINTER (1);
2321 key [1] = extra_class;
2324 if (extra_class != NULL && (extra_class->flags & TYPE_ATTRIBUTE_INTERFACE)) {
2325 key = g_malloc (sizeof(gpointer) * (remote_class->interface_count + 3));
2326 key [0] = GINT_TO_POINTER (remote_class->interface_count + 2);
2327 key [1] = remote_class->proxy_class;
2329 // Keep the list of interfaces sorted
2330 for (i = 0, j = 2; i < remote_class->interface_count; i++, j++) {
2331 if (extra_class && remote_class->interfaces [i] > extra_class) {
2332 key [j++] = extra_class;
2335 key [j] = remote_class->interfaces [i];
2338 key [j] = extra_class;
2340 // Replace the old class. The interface list is the same
2341 key = g_malloc (sizeof(gpointer) * (remote_class->interface_count + 2));
2342 key [0] = GINT_TO_POINTER (remote_class->interface_count + 1);
2343 key [1] = extra_class != NULL ? extra_class : remote_class->proxy_class;
2344 for (i = 0; i < remote_class->interface_count; i++)
2345 key [2 + i] = remote_class->interfaces [i];
2353 * copy_remote_class_key:
2355 * Make a copy of KEY in the domain and return the copy.
2358 copy_remote_class_key (MonoDomain *domain, gpointer *key)
2360 int key_size = (GPOINTER_TO_UINT (key [0]) + 1) * sizeof (gpointer);
2361 gpointer *mp_key = mono_domain_alloc (domain, key_size);
2363 memcpy (mp_key, key, key_size);
2369 * mono_remote_class:
2370 * @domain: the application domain
2371 * @class_name: name of the remote class
2373 * Creates and initializes a MonoRemoteClass object for a remote type.
2375 * Can raise an exception on failure.
2378 mono_remote_class (MonoDomain *domain, MonoString *class_name, MonoClass *proxy_class)
2381 MonoRemoteClass *rc;
2382 gpointer* key, *mp_key;
2385 key = create_remote_class_key (NULL, proxy_class);
2387 mono_domain_lock (domain);
2388 rc = g_hash_table_lookup (domain->proxy_vtable_hash, key);
2392 mono_domain_unlock (domain);
2396 name = mono_string_to_utf8_mp (domain->mp, class_name, &error);
2397 if (!mono_error_ok (&error)) {
2399 mono_domain_unlock (domain);
2400 mono_error_raise_exception (&error);
2403 mp_key = copy_remote_class_key (domain, key);
2407 if (proxy_class->flags & TYPE_ATTRIBUTE_INTERFACE) {
2408 rc = mono_domain_alloc (domain, MONO_SIZEOF_REMOTE_CLASS + sizeof(MonoClass*));
2409 rc->interface_count = 1;
2410 rc->interfaces [0] = proxy_class;
2411 rc->proxy_class = mono_defaults.marshalbyrefobject_class;
2413 rc = mono_domain_alloc (domain, MONO_SIZEOF_REMOTE_CLASS);
2414 rc->interface_count = 0;
2415 rc->proxy_class = proxy_class;
2418 rc->default_vtable = NULL;
2419 rc->xdomain_vtable = NULL;
2420 rc->proxy_class_name = name;
2421 mono_perfcounters->loader_bytes += mono_string_length (class_name) + 1;
2423 g_hash_table_insert (domain->proxy_vtable_hash, key, rc);
2425 mono_domain_unlock (domain);
2430 * clone_remote_class:
2431 * Creates a copy of the remote_class, adding the provided class or interface
2433 static MonoRemoteClass*
2434 clone_remote_class (MonoDomain *domain, MonoRemoteClass* remote_class, MonoClass *extra_class)
2436 MonoRemoteClass *rc;
2437 gpointer* key, *mp_key;
2439 key = create_remote_class_key (remote_class, extra_class);
2440 rc = g_hash_table_lookup (domain->proxy_vtable_hash, key);
2446 mp_key = copy_remote_class_key (domain, key);
2450 if (extra_class->flags & TYPE_ATTRIBUTE_INTERFACE) {
2452 rc = mono_domain_alloc (domain, MONO_SIZEOF_REMOTE_CLASS + sizeof(MonoClass*) * (remote_class->interface_count + 1));
2453 rc->proxy_class = remote_class->proxy_class;
2454 rc->interface_count = remote_class->interface_count + 1;
2456 // Keep the list of interfaces sorted, since the hash key of
2457 // the remote class depends on this
2458 for (i = 0, j = 0; i < remote_class->interface_count; i++, j++) {
2459 if (remote_class->interfaces [i] > extra_class && i == j)
2460 rc->interfaces [j++] = extra_class;
2461 rc->interfaces [j] = remote_class->interfaces [i];
2464 rc->interfaces [j] = extra_class;
2466 // Replace the old class. The interface array is the same
2467 rc = mono_domain_alloc (domain, MONO_SIZEOF_REMOTE_CLASS + sizeof(MonoClass*) * remote_class->interface_count);
2468 rc->proxy_class = extra_class;
2469 rc->interface_count = remote_class->interface_count;
2470 if (rc->interface_count > 0)
2471 memcpy (rc->interfaces, remote_class->interfaces, rc->interface_count * sizeof (MonoClass*));
2474 rc->default_vtable = NULL;
2475 rc->xdomain_vtable = NULL;
2476 rc->proxy_class_name = remote_class->proxy_class_name;
2478 g_hash_table_insert (domain->proxy_vtable_hash, key, rc);
2484 mono_remote_class_vtable (MonoDomain *domain, MonoRemoteClass *remote_class, MonoRealProxy *rp)
2486 mono_loader_lock (); /*FIXME mono_class_from_mono_type and mono_class_proxy_vtable take it*/
2487 mono_domain_lock (domain);
2488 if (rp->target_domain_id != -1) {
2489 if (remote_class->xdomain_vtable == NULL)
2490 remote_class->xdomain_vtable = mono_class_proxy_vtable (domain, remote_class, MONO_REMOTING_TARGET_APPDOMAIN);
2491 mono_domain_unlock (domain);
2492 mono_loader_unlock ();
2493 return remote_class->xdomain_vtable;
2495 if (remote_class->default_vtable == NULL) {
2498 type = ((MonoReflectionType *)rp->class_to_proxy)->type;
2499 klass = mono_class_from_mono_type (type);
2500 if ((klass->is_com_object || (mono_defaults.com_object_class && klass == mono_defaults.com_object_class)) && !mono_class_vtable (mono_domain_get (), klass)->remote)
2501 remote_class->default_vtable = mono_class_proxy_vtable (domain, remote_class, MONO_REMOTING_TARGET_COMINTEROP);
2503 remote_class->default_vtable = mono_class_proxy_vtable (domain, remote_class, MONO_REMOTING_TARGET_UNKNOWN);
2506 mono_domain_unlock (domain);
2507 mono_loader_unlock ();
2508 return remote_class->default_vtable;
2512 * mono_upgrade_remote_class:
2513 * @domain: the application domain
2514 * @tproxy: the proxy whose remote class has to be upgraded.
2515 * @klass: class to which the remote class can be casted.
2517 * Updates the vtable of the remote class by adding the necessary method slots
2518 * and interface offsets so it can be safely casted to klass. klass can be a
2519 * class or an interface.
2522 mono_upgrade_remote_class (MonoDomain *domain, MonoObject *proxy_object, MonoClass *klass)
2524 MonoTransparentProxy *tproxy;
2525 MonoRemoteClass *remote_class;
2526 gboolean redo_vtable;
2528 mono_loader_lock (); /*FIXME mono_remote_class_vtable requires it.*/
2529 mono_domain_lock (domain);
2531 tproxy = (MonoTransparentProxy*) proxy_object;
2532 remote_class = tproxy->remote_class;
2534 if (klass->flags & TYPE_ATTRIBUTE_INTERFACE) {
2537 for (i = 0; i < remote_class->interface_count && redo_vtable; i++)
2538 if (remote_class->interfaces [i] == klass)
2539 redo_vtable = FALSE;
2542 redo_vtable = (remote_class->proxy_class != klass);
2546 tproxy->remote_class = clone_remote_class (domain, remote_class, klass);
2547 proxy_object->vtable = mono_remote_class_vtable (domain, tproxy->remote_class, tproxy->rp);
2550 mono_domain_unlock (domain);
2551 mono_loader_unlock ();
2556 * mono_object_get_virtual_method:
2557 * @obj: object to operate on.
2560 * Retrieves the MonoMethod that would be called on obj if obj is passed as
2561 * the instance of a callvirt of method.
2564 mono_object_get_virtual_method (MonoObject *obj, MonoMethod *method)
2567 MonoMethod **vtable;
2569 MonoMethod *res = NULL;
2571 klass = mono_object_class (obj);
2572 if (klass == mono_defaults.transparent_proxy_class) {
2573 klass = ((MonoTransparentProxy *)obj)->remote_class->proxy_class;
2579 if (!is_proxy && ((method->flags & METHOD_ATTRIBUTE_FINAL) || !(method->flags & METHOD_ATTRIBUTE_VIRTUAL)))
2582 mono_class_setup_vtable (klass);
2583 vtable = klass->vtable;
2585 if (method->slot == -1) {
2586 /* method->slot might not be set for instances of generic methods */
2587 if (method->is_inflated) {
2588 g_assert (((MonoMethodInflated*)method)->declaring->slot != -1);
2589 method->slot = ((MonoMethodInflated*)method)->declaring->slot;
2592 g_assert_not_reached ();
2596 /* check method->slot is a valid index: perform isinstance? */
2597 if (method->slot != -1) {
2598 if (method->klass->flags & TYPE_ATTRIBUTE_INTERFACE) {
2600 gboolean variance_used = FALSE;
2601 int iface_offset = mono_class_interface_offset_with_variance (klass, method->klass, &variance_used);
2602 g_assert (iface_offset > 0);
2603 res = vtable [iface_offset + method->slot];
2606 res = vtable [method->slot];
2611 /* It may be an interface, abstract class method or generic method */
2612 if (!res || mono_method_signature (res)->generic_param_count)
2615 /* generic methods demand invoke_with_check */
2616 if (mono_method_signature (res)->generic_param_count)
2617 res = mono_marshal_get_remoting_invoke_with_check (res);
2620 if (klass == mono_defaults.com_object_class || klass->is_com_object)
2621 res = mono_cominterop_get_invoke (res);
2624 res = mono_marshal_get_remoting_invoke (res);
2627 if (method->is_inflated) {
2628 /* Have to inflate the result */
2629 res = mono_class_inflate_generic_method (res, &((MonoMethodInflated*)method)->context);
2639 dummy_mono_runtime_invoke (MonoMethod *method, void *obj, void **params, MonoObject **exc)
2641 g_error ("runtime invoke called on uninitialized runtime");
2645 static MonoInvokeFunc default_mono_runtime_invoke = dummy_mono_runtime_invoke;
2648 * mono_runtime_invoke:
2649 * @method: method to invoke
2650 * @obJ: object instance
2651 * @params: arguments to the method
2652 * @exc: exception information.
2654 * Invokes the method represented by @method on the object @obj.
2656 * obj is the 'this' pointer, it should be NULL for static
2657 * methods, a MonoObject* for object instances and a pointer to
2658 * the value type for value types.
2660 * The params array contains the arguments to the method with the
2661 * same convention: MonoObject* pointers for object instances and
2662 * pointers to the value type otherwise.
2664 * From unmanaged code you'll usually use the
2665 * mono_runtime_invoke() variant.
2667 * Note that this function doesn't handle virtual methods for
2668 * you, it will exec the exact method you pass: we still need to
2669 * expose a function to lookup the derived class implementation
2670 * of a virtual method (there are examples of this in the code,
2673 * You can pass NULL as the exc argument if you don't want to
2674 * catch exceptions, otherwise, *exc will be set to the exception
2675 * thrown, if any. if an exception is thrown, you can't use the
2676 * MonoObject* result from the function.
2678 * If the method returns a value type, it is boxed in an object
2682 mono_runtime_invoke (MonoMethod *method, void *obj, void **params, MonoObject **exc)
2686 if (mono_runtime_get_no_exec ())
2687 g_warning ("Invoking method '%s' when running in no-exec mode.\n", mono_method_full_name (method, TRUE));
2689 if (mono_profiler_get_events () & MONO_PROFILE_METHOD_EVENTS)
2690 mono_profiler_method_start_invoke (method);
2692 result = default_mono_runtime_invoke (method, obj, params, exc);
2694 if (mono_profiler_get_events () & MONO_PROFILE_METHOD_EVENTS)
2695 mono_profiler_method_end_invoke (method);
2701 * mono_method_get_unmanaged_thunk:
2702 * @method: method to generate a thunk for.
2704 * Returns an unmanaged->managed thunk that can be used to call
2705 * a managed method directly from C.
2707 * The thunk's C signature closely matches the managed signature:
2709 * C#: public bool Equals (object obj);
2710 * C: typedef MonoBoolean (*Equals)(MonoObject*,
2711 * MonoObject*, MonoException**);
2713 * The 1st ("this") parameter must not be used with static methods:
2715 * C#: public static bool ReferenceEquals (object a, object b);
2716 * C: typedef MonoBoolean (*ReferenceEquals)(MonoObject*, MonoObject*,
2719 * The last argument must be a non-null pointer of a MonoException* pointer.
2720 * It has "out" semantics. After invoking the thunk, *ex will be NULL if no
2721 * exception has been thrown in managed code. Otherwise it will point
2722 * to the MonoException* caught by the thunk. In this case, the result of
2723 * the thunk is undefined:
2725 * MonoMethod *method = ... // MonoMethod* of System.Object.Equals
2726 * MonoException *ex = NULL;
2727 * Equals func = mono_method_get_unmanaged_thunk (method);
2728 * MonoBoolean res = func (thisObj, objToCompare, &ex);
2730 * // handle exception
2733 * The calling convention of the thunk matches the platform's default
2734 * convention. This means that under Windows, C declarations must
2735 * contain the __stdcall attribute:
2737 * C: typedef MonoBoolean (__stdcall *Equals)(MonoObject*,
2738 * MonoObject*, MonoException**);
2742 * Value type arguments and return values are treated as they were objects:
2744 * C#: public static Rectangle Intersect (Rectangle a, Rectangle b);
2745 * C: typedef MonoObject* (*Intersect)(MonoObject*, MonoObject*, MonoException**);
2747 * Arguments must be properly boxed upon trunk's invocation, while return
2748 * values must be unboxed.
2751 mono_method_get_unmanaged_thunk (MonoMethod *method)
2753 method = mono_marshal_get_thunk_invoke_wrapper (method);
2754 return mono_compile_method (method);
2758 set_value (MonoType *type, void *dest, void *value, int deref_pointer)
2762 /* object fields cannot be byref, so we don't need a
2764 gpointer *p = (gpointer*)dest;
2771 case MONO_TYPE_BOOLEAN:
2773 case MONO_TYPE_U1: {
2774 guint8 *p = (guint8*)dest;
2775 *p = value ? *(guint8*)value : 0;
2780 case MONO_TYPE_CHAR: {
2781 guint16 *p = (guint16*)dest;
2782 *p = value ? *(guint16*)value : 0;
2785 #if SIZEOF_VOID_P == 4
2790 case MONO_TYPE_U4: {
2791 gint32 *p = (gint32*)dest;
2792 *p = value ? *(gint32*)value : 0;
2795 #if SIZEOF_VOID_P == 8
2800 case MONO_TYPE_U8: {
2801 gint64 *p = (gint64*)dest;
2802 *p = value ? *(gint64*)value : 0;
2805 case MONO_TYPE_R4: {
2806 float *p = (float*)dest;
2807 *p = value ? *(float*)value : 0;
2810 case MONO_TYPE_R8: {
2811 double *p = (double*)dest;
2812 *p = value ? *(double*)value : 0;
2815 case MONO_TYPE_STRING:
2816 case MONO_TYPE_SZARRAY:
2817 case MONO_TYPE_CLASS:
2818 case MONO_TYPE_OBJECT:
2819 case MONO_TYPE_ARRAY:
2820 mono_gc_wbarrier_generic_store (dest, deref_pointer? *(gpointer*)value: value);
2822 case MONO_TYPE_FNPTR:
2823 case MONO_TYPE_PTR: {
2824 gpointer *p = (gpointer*)dest;
2825 *p = deref_pointer? *(gpointer*)value: value;
2828 case MONO_TYPE_VALUETYPE:
2829 /* note that 't' and 'type->type' can be different */
2830 if (type->type == MONO_TYPE_VALUETYPE && type->data.klass->enumtype) {
2831 t = mono_class_enum_basetype (type->data.klass)->type;
2834 MonoClass *class = mono_class_from_mono_type (type);
2835 int size = mono_class_value_size (class, NULL);
2837 memset (dest, 0, size);
2839 mono_gc_wbarrier_value_copy (dest, value, 1, class);
2842 case MONO_TYPE_GENERICINST:
2843 t = type->data.generic_class->container_class->byval_arg.type;
2846 g_warning ("got type %x", type->type);
2847 g_assert_not_reached ();
2852 * mono_field_set_value:
2853 * @obj: Instance object
2854 * @field: MonoClassField describing the field to set
2855 * @value: The value to be set
2857 * Sets the value of the field described by @field in the object instance @obj
2858 * to the value passed in @value. This method should only be used for instance
2859 * fields. For static fields, use mono_field_static_set_value.
2861 * The value must be on the native format of the field type.
2864 mono_field_set_value (MonoObject *obj, MonoClassField *field, void *value)
2868 g_return_if_fail (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC));
2870 dest = (char*)obj + field->offset;
2871 set_value (field->type, dest, value, FALSE);
2875 * mono_field_static_set_value:
2876 * @field: MonoClassField describing the field to set
2877 * @value: The value to be set
2879 * Sets the value of the static field described by @field
2880 * to the value passed in @value.
2882 * The value must be on the native format of the field type.
2885 mono_field_static_set_value (MonoVTable *vt, MonoClassField *field, void *value)
2889 g_return_if_fail (field->type->attrs & FIELD_ATTRIBUTE_STATIC);
2890 /* you cant set a constant! */
2891 g_return_if_fail (!(field->type->attrs & FIELD_ATTRIBUTE_LITERAL));
2893 if (field->offset == -1) {
2894 /* Special static */
2895 gpointer addr = g_hash_table_lookup (vt->domain->special_static_fields, field);
2896 dest = mono_get_special_static_data (GPOINTER_TO_UINT (addr));
2898 dest = (char*)vt->data + field->offset;
2900 set_value (field->type, dest, value, FALSE);
2903 /* Used by the debugger */
2905 mono_vtable_get_static_field_data (MonoVTable *vt)
2911 mono_field_get_addr (MonoObject *obj, MonoVTable *vt, MonoClassField *field)
2915 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
2916 if (field->offset == -1) {
2917 /* Special static */
2918 gpointer addr = g_hash_table_lookup (vt->domain->special_static_fields, field);
2919 src = mono_get_special_static_data (GPOINTER_TO_UINT (addr));
2921 src = (guint8*)vt->data + field->offset;
2924 src = (guint8*)obj + field->offset;
2931 * mono_field_get_value:
2932 * @obj: Object instance
2933 * @field: MonoClassField describing the field to fetch information from
2934 * @value: pointer to the location where the value will be stored
2936 * Use this routine to get the value of the field @field in the object
2939 * The pointer provided by value must be of the field type, for reference
2940 * types this is a MonoObject*, for value types its the actual pointer to
2945 * mono_field_get_value (obj, int_field, &i);
2948 mono_field_get_value (MonoObject *obj, MonoClassField *field, void *value)
2952 g_return_if_fail (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC));
2954 src = (char*)obj + field->offset;
2955 set_value (field->type, value, src, TRUE);
2959 * mono_field_get_value_object:
2960 * @domain: domain where the object will be created (if boxing)
2961 * @field: MonoClassField describing the field to fetch information from
2962 * @obj: The object instance for the field.
2964 * Returns: a new MonoObject with the value from the given field. If the
2965 * field represents a value type, the value is boxed.
2969 mono_field_get_value_object (MonoDomain *domain, MonoClassField *field, MonoObject *obj)
2973 MonoVTable *vtable = NULL;
2975 gboolean is_static = FALSE;
2976 gboolean is_ref = FALSE;
2978 switch (field->type->type) {
2979 case MONO_TYPE_STRING:
2980 case MONO_TYPE_OBJECT:
2981 case MONO_TYPE_CLASS:
2982 case MONO_TYPE_ARRAY:
2983 case MONO_TYPE_SZARRAY:
2988 case MONO_TYPE_BOOLEAN:
2991 case MONO_TYPE_CHAR:
3000 case MONO_TYPE_VALUETYPE:
3001 is_ref = field->type->byref;
3003 case MONO_TYPE_GENERICINST:
3004 is_ref = !field->type->data.generic_class->container_class->valuetype;
3007 g_error ("type 0x%x not handled in "
3008 "mono_field_get_value_object", field->type->type);
3012 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
3014 vtable = mono_class_vtable (domain, field->parent);
3016 char *name = mono_type_get_full_name (field->parent);
3017 g_warning ("Could not retrieve the vtable for type %s in mono_field_get_value_object", name);
3021 if (!vtable->initialized)
3022 mono_runtime_class_init (vtable);
3027 mono_field_static_get_value (vtable, field, &o);
3029 mono_field_get_value (obj, field, &o);
3034 /* boxed value type */
3035 klass = mono_class_from_mono_type (field->type);
3037 if (mono_class_is_nullable (klass))
3038 return mono_nullable_box (mono_field_get_addr (obj, vtable, field), klass);
3040 o = mono_object_new (domain, klass);
3041 v = ((gchar *) o) + sizeof (MonoObject);
3043 mono_field_static_get_value (vtable, field, v);
3045 mono_field_get_value (obj, field, v);
3052 mono_get_constant_value_from_blob (MonoDomain* domain, MonoTypeEnum type, const char *blob, void *value)
3055 const char *p = blob;
3056 mono_metadata_decode_blob_size (p, &p);
3059 case MONO_TYPE_BOOLEAN:
3062 *(guint8 *) value = *p;
3064 case MONO_TYPE_CHAR:
3067 *(guint16*) value = read16 (p);
3071 *(guint32*) value = read32 (p);
3075 *(guint64*) value = read64 (p);
3078 readr4 (p, (float*) value);
3081 readr8 (p, (double*) value);
3083 case MONO_TYPE_STRING:
3084 *(gpointer*) value = mono_ldstr_metadata_sig (domain, blob);
3086 case MONO_TYPE_CLASS:
3087 *(gpointer*) value = NULL;
3091 g_warning ("type 0x%02x should not be in constant table", type);
3097 get_default_field_value (MonoDomain* domain, MonoClassField *field, void *value)
3099 MonoTypeEnum def_type;
3102 data = mono_class_get_field_default_value (field, &def_type);
3103 mono_get_constant_value_from_blob (domain, def_type, data, value);
3107 * mono_field_static_get_value:
3108 * @vt: vtable to the object
3109 * @field: MonoClassField describing the field to fetch information from
3110 * @value: where the value is returned
3112 * Use this routine to get the value of the static field @field value.
3114 * The pointer provided by value must be of the field type, for reference
3115 * types this is a MonoObject*, for value types its the actual pointer to
3120 * mono_field_static_get_value (vt, int_field, &i);
3123 mono_field_static_get_value (MonoVTable *vt, MonoClassField *field, void *value)
3127 g_return_if_fail (field->type->attrs & FIELD_ATTRIBUTE_STATIC);
3129 if (field->type->attrs & FIELD_ATTRIBUTE_LITERAL) {
3130 get_default_field_value (vt->domain, field, value);
3134 if (field->offset == -1) {
3135 /* Special static */
3136 gpointer addr = g_hash_table_lookup (vt->domain->special_static_fields, field);
3137 src = mono_get_special_static_data (GPOINTER_TO_UINT (addr));
3139 src = (char*)vt->data + field->offset;
3141 set_value (field->type, value, src, TRUE);
3145 * mono_property_set_value:
3146 * @prop: MonoProperty to set
3147 * @obj: instance object on which to act
3148 * @params: parameters to pass to the propery
3149 * @exc: optional exception
3151 * Invokes the property's set method with the given arguments on the
3152 * object instance obj (or NULL for static properties).
3154 * You can pass NULL as the exc argument if you don't want to
3155 * catch exceptions, otherwise, *exc will be set to the exception
3156 * thrown, if any. if an exception is thrown, you can't use the
3157 * MonoObject* result from the function.
3160 mono_property_set_value (MonoProperty *prop, void *obj, void **params, MonoObject **exc)
3162 default_mono_runtime_invoke (prop->set, obj, params, exc);
3166 * mono_property_get_value:
3167 * @prop: MonoProperty to fetch
3168 * @obj: instance object on which to act
3169 * @params: parameters to pass to the propery
3170 * @exc: optional exception
3172 * Invokes the property's get method with the given arguments on the
3173 * object instance obj (or NULL for static properties).
3175 * You can pass NULL as the exc argument if you don't want to
3176 * catch exceptions, otherwise, *exc will be set to the exception
3177 * thrown, if any. if an exception is thrown, you can't use the
3178 * MonoObject* result from the function.
3180 * Returns: the value from invoking the get method on the property.
3183 mono_property_get_value (MonoProperty *prop, void *obj, void **params, MonoObject **exc)
3185 return default_mono_runtime_invoke (prop->get, obj, params, exc);
3189 * mono_nullable_init:
3190 * @buf: The nullable structure to initialize.
3191 * @value: the value to initialize from
3192 * @klass: the type for the object
3194 * Initialize the nullable structure pointed to by @buf from @value which
3195 * should be a boxed value type. The size of @buf should be able to hold
3196 * as much data as the @klass->instance_size (which is the number of bytes
3197 * that will be copies).
3199 * Since Nullables have variable structure, we can not define a C
3200 * structure for them.
3203 mono_nullable_init (guint8 *buf, MonoObject *value, MonoClass *klass)
3205 MonoClass *param_class = klass->cast_class;
3207 g_assert (mono_class_from_mono_type (klass->fields [0].type) == param_class);
3208 g_assert (mono_class_from_mono_type (klass->fields [1].type) == mono_defaults.boolean_class);
3210 *(guint8*)(buf + klass->fields [1].offset - sizeof (MonoObject)) = value ? 1 : 0;
3212 if (param_class->has_references)
3213 mono_gc_wbarrier_value_copy (buf + klass->fields [0].offset - sizeof (MonoObject), mono_object_unbox (value), 1, param_class);
3215 memcpy (buf + klass->fields [0].offset - sizeof (MonoObject), mono_object_unbox (value), mono_class_value_size (param_class, NULL));
3217 memset (buf + klass->fields [0].offset - sizeof (MonoObject), 0, mono_class_value_size (param_class, NULL));
3222 * mono_nullable_box:
3223 * @buf: The buffer representing the data to be boxed
3224 * @klass: the type to box it as.
3226 * Creates a boxed vtype or NULL from the Nullable structure pointed to by
3230 mono_nullable_box (guint8 *buf, MonoClass *klass)
3232 MonoClass *param_class = klass->cast_class;
3234 g_assert (mono_class_from_mono_type (klass->fields [0].type) == param_class);
3235 g_assert (mono_class_from_mono_type (klass->fields [1].type) == mono_defaults.boolean_class);
3237 if (*(guint8*)(buf + klass->fields [1].offset - sizeof (MonoObject))) {
3238 MonoObject *o = mono_object_new (mono_domain_get (), param_class);
3239 if (param_class->has_references)
3240 mono_gc_wbarrier_value_copy (mono_object_unbox (o), buf + klass->fields [0].offset - sizeof (MonoObject), 1, param_class);
3242 memcpy (mono_object_unbox (o), buf + klass->fields [0].offset - sizeof (MonoObject), mono_class_value_size (param_class, NULL));
3250 * mono_get_delegate_invoke:
3251 * @klass: The delegate class
3253 * Returns: the MonoMethod for the "Invoke" method in the delegate klass
3256 mono_get_delegate_invoke (MonoClass *klass)
3260 /* This is called at runtime, so avoid the slower search in metadata */
3261 mono_class_setup_methods (klass);
3262 if (klass->exception_type)
3264 im = mono_class_get_method_from_name (klass, "Invoke", -1);
3271 * mono_runtime_delegate_invoke:
3272 * @delegate: pointer to a delegate object.
3273 * @params: parameters for the delegate.
3274 * @exc: Pointer to the exception result.
3276 * Invokes the delegate method @delegate with the parameters provided.
3278 * You can pass NULL as the exc argument if you don't want to
3279 * catch exceptions, otherwise, *exc will be set to the exception
3280 * thrown, if any. if an exception is thrown, you can't use the
3281 * MonoObject* result from the function.
3284 mono_runtime_delegate_invoke (MonoObject *delegate, void **params, MonoObject **exc)
3288 im = mono_get_delegate_invoke (delegate->vtable->klass);
3291 return mono_runtime_invoke (im, delegate, params, exc);
3294 static char **main_args = NULL;
3295 static int num_main_args;
3298 * mono_runtime_get_main_args:
3300 * Returns: a MonoArray with the arguments passed to the main program
3303 mono_runtime_get_main_args (void)
3307 MonoDomain *domain = mono_domain_get ();
3312 res = (MonoArray*)mono_array_new (domain, mono_defaults.string_class, num_main_args);
3314 for (i = 0; i < num_main_args; ++i)
3315 mono_array_setref (res, i, mono_string_new (domain, main_args [i]));
3321 fire_process_exit_event (void)
3323 MonoClassField *field;
3324 MonoDomain *domain = mono_domain_get ();
3326 MonoObject *delegate, *exc;
3328 field = mono_class_get_field_from_name (mono_defaults.appdomain_class, "ProcessExit");
3331 if (domain != mono_get_root_domain ())
3334 delegate = *(MonoObject **)(((char *)domain->domain) + field->offset);
3335 if (delegate == NULL)
3340 mono_runtime_delegate_invoke (delegate, pa, &exc);
3344 * mono_runtime_run_main:
3345 * @method: the method to start the application with (usually Main)
3346 * @argc: number of arguments from the command line
3347 * @argv: array of strings from the command line
3348 * @exc: excetption results
3350 * Execute a standard Main() method (argc/argv contains the
3351 * executable name). This method also sets the command line argument value
3352 * needed by System.Environment.
3357 mono_runtime_run_main (MonoMethod *method, int argc, char* argv[],
3361 MonoArray *args = NULL;
3362 MonoDomain *domain = mono_domain_get ();
3363 gchar *utf8_fullpath;
3366 g_assert (method != NULL);
3368 mono_thread_set_main (mono_thread_current ());
3370 main_args = g_new0 (char*, argc);
3371 num_main_args = argc;
3373 if (!g_path_is_absolute (argv [0])) {
3374 gchar *basename = g_path_get_basename (argv [0]);
3375 gchar *fullpath = g_build_filename (method->klass->image->assembly->basedir,
3379 utf8_fullpath = mono_utf8_from_external (fullpath);
3380 if(utf8_fullpath == NULL) {
3381 /* Printing the arg text will cause glib to
3382 * whinge about "Invalid UTF-8", but at least
3383 * its relevant, and shows the problem text
3386 g_print ("\nCannot determine the text encoding for the assembly location: %s\n", fullpath);
3387 g_print ("Please add the correct encoding to MONO_EXTERNAL_ENCODINGS and try again.\n");
3394 utf8_fullpath = mono_utf8_from_external (argv[0]);
3395 if(utf8_fullpath == NULL) {
3396 g_print ("\nCannot determine the text encoding for the assembly location: %s\n", argv[0]);
3397 g_print ("Please add the correct encoding to MONO_EXTERNAL_ENCODINGS and try again.\n");
3402 main_args [0] = utf8_fullpath;
3404 for (i = 1; i < argc; ++i) {
3407 utf8_arg=mono_utf8_from_external (argv[i]);
3408 if(utf8_arg==NULL) {
3409 /* Ditto the comment about Invalid UTF-8 here */
3410 g_print ("\nCannot determine the text encoding for argument %d (%s).\n", i, argv[i]);
3411 g_print ("Please add the correct encoding to MONO_EXTERNAL_ENCODINGS and try again.\n");
3415 main_args [i] = utf8_arg;
3419 if (mono_method_signature (method)->param_count) {
3420 args = (MonoArray*)mono_array_new (domain, mono_defaults.string_class, argc);
3421 for (i = 0; i < argc; ++i) {
3422 /* The encodings should all work, given that
3423 * we've checked all these args for the
3426 gchar *str = mono_utf8_from_external (argv [i]);
3427 MonoString *arg = mono_string_new (domain, str);
3428 mono_array_setref (args, i, arg);
3432 args = (MonoArray*)mono_array_new (domain, mono_defaults.string_class, 0);
3435 mono_assembly_set_main (method->klass->image->assembly);
3437 result = mono_runtime_exec_main (method, args, exc);
3438 fire_process_exit_event ();
3443 serialize_object (MonoObject *obj, gboolean *failure, MonoObject **exc)
3445 static MonoMethod *serialize_method;
3450 if (!serialize_method) {
3451 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
3452 serialize_method = mono_class_get_method_from_name (klass, "SerializeCallData", -1);
3455 if (!serialize_method) {
3460 g_assert (!mono_object_class (obj)->marshalbyref);
3464 array = mono_runtime_invoke (serialize_method, NULL, params, exc);
3472 deserialize_object (MonoObject *obj, gboolean *failure, MonoObject **exc)
3474 static MonoMethod *deserialize_method;
3479 if (!deserialize_method) {
3480 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting", "RemotingServices");
3481 deserialize_method = mono_class_get_method_from_name (klass, "DeserializeCallData", -1);
3483 if (!deserialize_method) {
3490 result = mono_runtime_invoke (deserialize_method, NULL, params, exc);
3498 make_transparent_proxy (MonoObject *obj, gboolean *failure, MonoObject **exc)
3500 static MonoMethod *get_proxy_method;
3502 MonoDomain *domain = mono_domain_get ();
3503 MonoRealProxy *real_proxy;
3504 MonoReflectionType *reflection_type;
3505 MonoTransparentProxy *transparent_proxy;
3507 if (!get_proxy_method)
3508 get_proxy_method = mono_class_get_method_from_name (mono_defaults.real_proxy_class, "GetTransparentProxy", 0);
3510 g_assert (obj->vtable->klass->marshalbyref);
3512 real_proxy = (MonoRealProxy*) mono_object_new (domain, mono_defaults.real_proxy_class);
3513 reflection_type = mono_type_get_object (domain, &obj->vtable->klass->byval_arg);
3515 MONO_OBJECT_SETREF (real_proxy, class_to_proxy, reflection_type);
3516 MONO_OBJECT_SETREF (real_proxy, unwrapped_server, obj);
3519 transparent_proxy = (MonoTransparentProxy*) mono_runtime_invoke (get_proxy_method, real_proxy, NULL, exc);
3523 return (MonoObject*) transparent_proxy;
3527 * mono_object_xdomain_representation
3529 * @target_domain: a domain
3530 * @exc: pointer to a MonoObject*
3532 * Creates a representation of obj in the domain target_domain. This
3533 * is either a copy of obj arrived through via serialization and
3534 * deserialization or a proxy, depending on whether the object is
3535 * serializable or marshal by ref. obj must not be in target_domain.
3537 * If the object cannot be represented in target_domain, NULL is
3538 * returned and *exc is set to an appropriate exception.
3541 mono_object_xdomain_representation (MonoObject *obj, MonoDomain *target_domain, MonoObject **exc)
3543 MonoObject *deserialized = NULL;
3544 gboolean failure = FALSE;
3548 if (mono_object_class (obj)->marshalbyref) {
3549 deserialized = make_transparent_proxy (obj, &failure, exc);
3551 MonoDomain *domain = mono_domain_get ();
3552 MonoObject *serialized;
3554 mono_domain_set_internal_with_options (mono_object_domain (obj), FALSE);
3555 serialized = serialize_object (obj, &failure, exc);
3556 mono_domain_set_internal_with_options (target_domain, FALSE);
3558 deserialized = deserialize_object (serialized, &failure, exc);
3559 if (domain != target_domain)
3560 mono_domain_set_internal_with_options (domain, FALSE);
3563 return deserialized;
3566 /* Used in call_unhandled_exception_delegate */
3568 create_unhandled_exception_eventargs (MonoObject *exc)
3572 MonoMethod *method = NULL;
3573 MonoBoolean is_terminating = TRUE;
3576 klass = mono_class_from_name (mono_defaults.corlib, "System", "UnhandledExceptionEventArgs");
3579 mono_class_init (klass);
3581 /* UnhandledExceptionEventArgs only has 1 public ctor with 2 args */
3582 method = mono_class_get_method_from_name_flags (klass, ".ctor", 2, METHOD_ATTRIBUTE_PUBLIC);
3586 args [1] = &is_terminating;
3588 obj = mono_object_new (mono_domain_get (), klass);
3589 mono_runtime_invoke (method, obj, args, NULL);
3594 /* Used in mono_unhandled_exception */
3596 call_unhandled_exception_delegate (MonoDomain *domain, MonoObject *delegate, MonoObject *exc) {
3597 MonoObject *e = NULL;
3599 MonoDomain *current_domain = mono_domain_get ();
3601 if (domain != current_domain)
3602 mono_domain_set_internal_with_options (domain, FALSE);
3604 g_assert (domain == mono_object_domain (domain->domain));
3606 if (mono_object_domain (exc) != domain) {
3607 MonoObject *serialization_exc;
3609 exc = mono_object_xdomain_representation (exc, domain, &serialization_exc);
3611 if (serialization_exc) {
3613 exc = mono_object_xdomain_representation (serialization_exc, domain, &dummy);
3616 exc = (MonoObject*) mono_exception_from_name_msg (mono_get_corlib (),
3617 "System.Runtime.Serialization", "SerializationException",
3618 "Could not serialize unhandled exception.");
3622 g_assert (mono_object_domain (exc) == domain);
3624 pa [0] = domain->domain;
3625 pa [1] = create_unhandled_exception_eventargs (exc);
3626 mono_runtime_delegate_invoke (delegate, pa, &e);
3628 if (domain != current_domain)
3629 mono_domain_set_internal_with_options (current_domain, FALSE);
3633 gchar *msg = mono_string_to_utf8_checked (((MonoException *) e)->message, &error);
3634 if (!mono_error_ok (&error)) {
3635 g_warning ("Exception inside UnhandledException handler with invalid message (Invalid characters)\n");
3636 mono_error_cleanup (&error);
3638 g_warning ("exception inside UnhandledException handler: %s\n", msg);
3644 static MonoRuntimeUnhandledExceptionPolicy runtime_unhandled_exception_policy = MONO_UNHANDLED_POLICY_CURRENT;
3647 * mono_runtime_unhandled_exception_policy_set:
3648 * @policy: the new policy
3650 * This is a VM internal routine.
3652 * Sets the runtime policy for handling unhandled exceptions.
3655 mono_runtime_unhandled_exception_policy_set (MonoRuntimeUnhandledExceptionPolicy policy) {
3656 runtime_unhandled_exception_policy = policy;
3660 * mono_runtime_unhandled_exception_policy_get:
3662 * This is a VM internal routine.
3664 * Gets the runtime policy for handling unhandled exceptions.
3666 MonoRuntimeUnhandledExceptionPolicy
3667 mono_runtime_unhandled_exception_policy_get (void) {
3668 return runtime_unhandled_exception_policy;
3672 * mono_unhandled_exception:
3673 * @exc: exception thrown
3675 * This is a VM internal routine.
3677 * We call this function when we detect an unhandled exception
3678 * in the default domain.
3680 * It invokes the * UnhandledException event in AppDomain or prints
3681 * a warning to the console
3684 mono_unhandled_exception (MonoObject *exc)
3686 MonoDomain *current_domain = mono_domain_get ();
3687 MonoDomain *root_domain = mono_get_root_domain ();
3688 MonoClassField *field;
3689 MonoObject *current_appdomain_delegate;
3690 MonoObject *root_appdomain_delegate;
3692 field=mono_class_get_field_from_name(mono_defaults.appdomain_class,
3693 "UnhandledException");
3696 if (exc->vtable->klass != mono_defaults.threadabortexception_class) {
3697 gboolean abort_process = (main_thread && (mono_thread_internal_current () == main_thread->internal_thread)) ||
3698 (mono_runtime_unhandled_exception_policy_get () == MONO_UNHANDLED_POLICY_CURRENT);
3699 root_appdomain_delegate = *(MonoObject **)(((char *)root_domain->domain) + field->offset);
3700 if (current_domain != root_domain) {
3701 current_appdomain_delegate = *(MonoObject **)(((char *)current_domain->domain) + field->offset);
3703 current_appdomain_delegate = NULL;
3706 /* set exitcode only if we will abort the process */
3708 mono_environment_exitcode_set (1);
3709 if ((current_appdomain_delegate == NULL) && (root_appdomain_delegate == NULL)) {
3710 mono_print_unhandled_exception (exc);
3712 if (root_appdomain_delegate) {
3713 call_unhandled_exception_delegate (root_domain, root_appdomain_delegate, exc);
3715 if (current_appdomain_delegate) {
3716 call_unhandled_exception_delegate (current_domain, current_appdomain_delegate, exc);
3723 * Launch a new thread to execute a function
3725 * main_func is called back from the thread with main_args as the
3726 * parameter. The callback function is expected to start Main()
3727 * eventually. This function then waits for all managed threads to
3729 * It is not necesseray anymore to execute managed code in a subthread,
3730 * so this function should not be used anymore by default: just
3731 * execute the code and then call mono_thread_manage ().
3734 mono_runtime_exec_managed_code (MonoDomain *domain,
3735 MonoMainThreadFunc main_func,
3738 mono_thread_create (domain, main_func, main_args);
3740 mono_thread_manage ();
3744 * Execute a standard Main() method (args doesn't contain the
3748 mono_runtime_exec_main (MonoMethod *method, MonoArray *args, MonoObject **exc)
3753 MonoCustomAttrInfo* cinfo;
3754 gboolean has_stathread_attribute;
3755 MonoInternalThread* thread = mono_thread_internal_current ();
3761 domain = mono_object_domain (args);
3762 if (!domain->entry_assembly) {
3764 MonoAssembly *assembly;
3766 assembly = method->klass->image->assembly;
3767 domain->entry_assembly = assembly;
3768 /* Domains created from another domain already have application_base and configuration_file set */
3769 if (domain->setup->application_base == NULL) {
3770 MONO_OBJECT_SETREF (domain->setup, application_base, mono_string_new (domain, assembly->basedir));
3773 if (domain->setup->configuration_file == NULL) {
3774 str = g_strconcat (assembly->image->name, ".config", NULL);
3775 MONO_OBJECT_SETREF (domain->setup, configuration_file, mono_string_new (domain, str));
3777 mono_set_private_bin_path_from_config (domain);
3781 cinfo = mono_custom_attrs_from_method (method);
3783 static MonoClass *stathread_attribute = NULL;
3784 if (!stathread_attribute)
3785 stathread_attribute = mono_class_from_name (mono_defaults.corlib, "System", "STAThreadAttribute");
3786 has_stathread_attribute = mono_custom_attrs_has_attr (cinfo, stathread_attribute);
3788 mono_custom_attrs_free (cinfo);
3790 has_stathread_attribute = FALSE;
3792 if (has_stathread_attribute) {
3793 thread->apartment_state = ThreadApartmentState_STA;
3795 thread->apartment_state = ThreadApartmentState_MTA;
3797 mono_thread_init_apartment_state ();
3799 mono_debugger_event (MONO_DEBUGGER_EVENT_REACHED_MAIN, 0, 0);
3801 /* FIXME: check signature of method */
3802 if (mono_method_signature (method)->ret->type == MONO_TYPE_I4) {
3804 res = mono_runtime_invoke (method, NULL, pa, exc);
3806 rval = *(guint32 *)((char *)res + sizeof (MonoObject));
3810 mono_environment_exitcode_set (rval);
3812 mono_runtime_invoke (method, NULL, pa, exc);
3816 /* If the return type of Main is void, only
3817 * set the exitcode if an exception was thrown
3818 * (we don't want to blow away an
3819 * explicitly-set exit code)
3822 mono_environment_exitcode_set (rval);
3826 mono_debugger_event (MONO_DEBUGGER_EVENT_MAIN_EXITED, (guint64) (gsize) rval, 0);
3832 * mono_install_runtime_invoke:
3833 * @func: Function to install
3835 * This is a VM internal routine
3838 mono_install_runtime_invoke (MonoInvokeFunc func)
3840 default_mono_runtime_invoke = func ? func: dummy_mono_runtime_invoke;
3845 * mono_runtime_invoke_array:
3846 * @method: method to invoke
3847 * @obJ: object instance
3848 * @params: arguments to the method
3849 * @exc: exception information.
3851 * Invokes the method represented by @method on the object @obj.
3853 * obj is the 'this' pointer, it should be NULL for static
3854 * methods, a MonoObject* for object instances and a pointer to
3855 * the value type for value types.
3857 * The params array contains the arguments to the method with the
3858 * same convention: MonoObject* pointers for object instances and
3859 * pointers to the value type otherwise. The _invoke_array
3860 * variant takes a C# object[] as the params argument (MonoArray
3861 * *params): in this case the value types are boxed inside the
3862 * respective reference representation.
3864 * From unmanaged code you'll usually use the
3865 * mono_runtime_invoke() variant.
3867 * Note that this function doesn't handle virtual methods for
3868 * you, it will exec the exact method you pass: we still need to
3869 * expose a function to lookup the derived class implementation
3870 * of a virtual method (there are examples of this in the code,
3873 * You can pass NULL as the exc argument if you don't want to
3874 * catch exceptions, otherwise, *exc will be set to the exception
3875 * thrown, if any. if an exception is thrown, you can't use the
3876 * MonoObject* result from the function.
3878 * If the method returns a value type, it is boxed in an object
3882 mono_runtime_invoke_array (MonoMethod *method, void *obj, MonoArray *params,
3885 MonoMethodSignature *sig = mono_method_signature (method);
3886 gpointer *pa = NULL;
3889 gboolean has_byref_nullables = FALSE;
3891 if (NULL != params) {
3892 pa = alloca (sizeof (gpointer) * mono_array_length (params));
3893 for (i = 0; i < mono_array_length (params); i++) {
3894 MonoType *t = sig->params [i];
3900 case MONO_TYPE_BOOLEAN:
3903 case MONO_TYPE_CHAR:
3912 case MONO_TYPE_VALUETYPE:
3913 if (t->type == MONO_TYPE_VALUETYPE && mono_class_is_nullable (mono_class_from_mono_type (sig->params [i]))) {
3914 /* The runtime invoke wrapper needs the original boxed vtype, it does handle byref values as well. */
3915 pa [i] = mono_array_get (params, MonoObject*, i);
3917 has_byref_nullables = TRUE;
3919 /* MS seems to create the objects if a null is passed in */
3920 if (!mono_array_get (params, MonoObject*, i))
3921 mono_array_setref (params, i, mono_object_new (mono_domain_get (), mono_class_from_mono_type (sig->params [i])));
3925 * We can't pass the unboxed vtype byref to the callee, since
3926 * that would mean the callee would be able to modify boxed
3927 * primitive types. So we (and MS) make a copy of the boxed
3928 * object, pass that to the callee, and replace the original
3929 * boxed object in the arg array with the copy.
3931 MonoObject *orig = mono_array_get (params, MonoObject*, i);
3932 MonoObject *copy = mono_value_box (mono_domain_get (), orig->vtable->klass, mono_object_unbox (orig));
3933 mono_array_setref (params, i, copy);
3936 pa [i] = mono_object_unbox (mono_array_get (params, MonoObject*, i));
3939 case MONO_TYPE_STRING:
3940 case MONO_TYPE_OBJECT:
3941 case MONO_TYPE_CLASS:
3942 case MONO_TYPE_ARRAY:
3943 case MONO_TYPE_SZARRAY:
3945 pa [i] = mono_array_addr (params, MonoObject*, i);
3946 // FIXME: I need to check this code path
3948 pa [i] = mono_array_get (params, MonoObject*, i);
3950 case MONO_TYPE_GENERICINST:
3952 t = &t->data.generic_class->container_class->this_arg;
3954 t = &t->data.generic_class->container_class->byval_arg;
3956 case MONO_TYPE_PTR: {
3959 /* The argument should be an IntPtr */
3960 arg = mono_array_get (params, MonoObject*, i);
3964 g_assert (arg->vtable->klass == mono_defaults.int_class);
3965 pa [i] = ((MonoIntPtr*)arg)->m_value;
3970 g_error ("type 0x%x not handled in mono_runtime_invoke_array", sig->params [i]->type);
3975 if (!strcmp (method->name, ".ctor") && method->klass != mono_defaults.string_class) {
3978 if (mono_class_is_nullable (method->klass)) {
3979 /* Need to create a boxed vtype instead */
3985 return mono_value_box (mono_domain_get (), method->klass->cast_class, pa [0]);
3989 obj = mono_object_new (mono_domain_get (), method->klass);
3990 if (mono_object_class(obj) == mono_defaults.transparent_proxy_class) {
3991 method = mono_marshal_get_remoting_invoke (method->slot == -1 ? method : method->klass->vtable [method->slot]);
3993 if (method->klass->valuetype)
3994 o = mono_object_unbox (obj);
3997 } else if (method->klass->valuetype) {
3998 obj = mono_value_box (mono_domain_get (), method->klass, obj);
4001 mono_runtime_invoke (method, o, pa, exc);
4004 if (mono_class_is_nullable (method->klass)) {
4005 MonoObject *nullable;
4007 /* Convert the unboxed vtype into a Nullable structure */
4008 nullable = mono_object_new (mono_domain_get (), method->klass);
4010 mono_nullable_init (mono_object_unbox (nullable), mono_value_box (mono_domain_get (), method->klass->cast_class, obj), method->klass);
4011 obj = mono_object_unbox (nullable);
4014 /* obj must be already unboxed if needed */
4015 res = mono_runtime_invoke (method, obj, pa, exc);
4017 if (sig->ret->type == MONO_TYPE_PTR) {
4018 MonoClass *pointer_class;
4019 static MonoMethod *box_method;
4021 MonoObject *box_exc;
4024 * The runtime-invoke wrapper returns a boxed IntPtr, need to
4025 * convert it to a Pointer object.
4027 pointer_class = mono_class_from_name_cached (mono_defaults.corlib, "System.Reflection", "Pointer");
4029 box_method = mono_class_get_method_from_name (pointer_class, "Box", -1);
4031 g_assert (res->vtable->klass == mono_defaults.int_class);
4032 box_args [0] = ((MonoIntPtr*)res)->m_value;
4033 box_args [1] = mono_type_get_object (mono_domain_get (), sig->ret);
4034 res = mono_runtime_invoke (box_method, NULL, box_args, &box_exc);
4035 g_assert (!box_exc);
4038 if (has_byref_nullables) {
4040 * The runtime invoke wrapper already converted byref nullables back,
4041 * and stored them in pa, we just need to copy them back to the
4044 for (i = 0; i < mono_array_length (params); i++) {
4045 MonoType *t = sig->params [i];
4047 if (t->byref && t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t)))
4048 mono_array_setref (params, i, pa [i]);
4057 arith_overflow (void)
4059 mono_raise_exception (mono_get_exception_overflow ());
4063 * mono_object_allocate:
4064 * @size: number of bytes to allocate
4066 * This is a very simplistic routine until we have our GC-aware
4069 * Returns: an allocated object of size @size, or NULL on failure.
4071 static inline void *
4072 mono_object_allocate (size_t size, MonoVTable *vtable)
4075 mono_stats.new_object_count++;
4076 ALLOC_OBJECT (o, vtable, size);
4082 * mono_object_allocate_ptrfree:
4083 * @size: number of bytes to allocate
4085 * Note that the memory allocated is not zeroed.
4086 * Returns: an allocated object of size @size, or NULL on failure.
4088 static inline void *
4089 mono_object_allocate_ptrfree (size_t size, MonoVTable *vtable)
4092 mono_stats.new_object_count++;
4093 ALLOC_PTRFREE (o, vtable, size);
4097 static inline void *
4098 mono_object_allocate_spec (size_t size, MonoVTable *vtable)
4101 ALLOC_TYPED (o, size, vtable);
4102 mono_stats.new_object_count++;
4109 * @klass: the class of the object that we want to create
4111 * Returns: a newly created object whose definition is
4112 * looked up using @klass. This will not invoke any constructors,
4113 * so the consumer of this routine has to invoke any constructors on
4114 * its own to initialize the object.
4116 * It returns NULL on failure.
4119 mono_object_new (MonoDomain *domain, MonoClass *klass)
4123 MONO_ARCH_SAVE_REGS;
4124 vtable = mono_class_vtable (domain, klass);
4127 return mono_object_new_specific (vtable);
4131 * mono_object_new_specific:
4132 * @vtable: the vtable of the object that we want to create
4134 * Returns: A newly created object with class and domain specified
4138 mono_object_new_specific (MonoVTable *vtable)
4142 MONO_ARCH_SAVE_REGS;
4144 /* check for is_com_object for COM Interop */
4145 if (vtable->remote || vtable->klass->is_com_object)
4148 MonoMethod *im = vtable->domain->create_proxy_for_type_method;
4151 MonoClass *klass = mono_class_from_name (mono_defaults.corlib, "System.Runtime.Remoting.Activation", "ActivationServices");
4154 mono_class_init (klass);
4156 im = mono_class_get_method_from_name (klass, "CreateProxyForType", 1);
4158 vtable->domain->create_proxy_for_type_method = im;
4161 pa [0] = mono_type_get_object (mono_domain_get (), &vtable->klass->byval_arg);
4163 o = mono_runtime_invoke (im, NULL, pa, NULL);
4164 if (o != NULL) return o;
4167 return mono_object_new_alloc_specific (vtable);
4171 mono_object_new_alloc_specific (MonoVTable *vtable)
4175 if (!vtable->klass->has_references) {
4176 o = mono_object_new_ptrfree (vtable);
4177 } else if (vtable->gc_descr != GC_NO_DESCRIPTOR) {
4178 o = mono_object_allocate_spec (vtable->klass->instance_size, vtable);
4180 /* printf("OBJECT: %s.%s.\n", vtable->klass->name_space, vtable->klass->name); */
4181 o = mono_object_allocate (vtable->klass->instance_size, vtable);
4183 if (G_UNLIKELY (vtable->klass->has_finalize))
4184 mono_object_register_finalizer (o);
4186 if (G_UNLIKELY (profile_allocs))
4187 mono_profiler_allocation (o, vtable->klass);
4192 mono_object_new_fast (MonoVTable *vtable)
4195 ALLOC_TYPED (o, vtable->klass->instance_size, vtable);
4200 mono_object_new_ptrfree (MonoVTable *vtable)
4203 ALLOC_PTRFREE (obj, vtable, vtable->klass->instance_size);
4204 #if NEED_TO_ZERO_PTRFREE
4205 /* an inline memset is much faster for the common vcase of small objects
4206 * note we assume the allocated size is a multiple of sizeof (void*).
4208 if (vtable->klass->instance_size < 128) {
4210 end = (gpointer*)((char*)obj + vtable->klass->instance_size);
4211 p = (gpointer*)((char*)obj + sizeof (MonoObject));
4217 memset ((char*)obj + sizeof (MonoObject), 0, vtable->klass->instance_size - sizeof (MonoObject));
4224 mono_object_new_ptrfree_box (MonoVTable *vtable)
4227 ALLOC_PTRFREE (obj, vtable, vtable->klass->instance_size);
4228 /* the object will be boxed right away, no need to memzero it */
4233 * mono_class_get_allocation_ftn:
4235 * @for_box: the object will be used for boxing
4236 * @pass_size_in_words:
4238 * Return the allocation function appropriate for the given class.
4242 mono_class_get_allocation_ftn (MonoVTable *vtable, gboolean for_box, gboolean *pass_size_in_words)
4244 *pass_size_in_words = FALSE;
4246 if (!(mono_profiler_get_events () & MONO_PROFILE_ALLOCATIONS))
4247 profile_allocs = FALSE;
4249 if (vtable->klass->has_finalize || vtable->klass->marshalbyref || (mono_profiler_get_events () & MONO_PROFILE_ALLOCATIONS))
4250 return mono_object_new_specific;
4252 if (!vtable->klass->has_references) {
4253 //g_print ("ptrfree for %s.%s\n", vtable->klass->name_space, vtable->klass->name);
4255 return mono_object_new_ptrfree_box;
4256 return mono_object_new_ptrfree;
4259 if (vtable->gc_descr != GC_NO_DESCRIPTOR) {
4261 return mono_object_new_fast;
4264 * FIXME: This is actually slower than mono_object_new_fast, because
4265 * of the overhead of parameter passing.
4268 *pass_size_in_words = TRUE;
4269 #ifdef GC_REDIRECT_TO_LOCAL
4270 return GC_local_gcj_fast_malloc;
4272 return GC_gcj_fast_malloc;
4277 return mono_object_new_specific;
4281 * mono_object_new_from_token:
4282 * @image: Context where the type_token is hosted
4283 * @token: a token of the type that we want to create
4285 * Returns: A newly created object whose definition is
4286 * looked up using @token in the @image image
4289 mono_object_new_from_token (MonoDomain *domain, MonoImage *image, guint32 token)
4293 class = mono_class_get (image, token);
4295 return mono_object_new (domain, class);
4300 * mono_object_clone:
4301 * @obj: the object to clone
4303 * Returns: A newly created object who is a shallow copy of @obj
4306 mono_object_clone (MonoObject *obj)
4309 int size = obj->vtable->klass->instance_size;
4311 o = mono_object_allocate (size, obj->vtable);
4313 if (obj->vtable->klass->has_references) {
4314 mono_gc_wbarrier_object_copy (o, obj);
4316 int size = obj->vtable->klass->instance_size;
4317 /* do not copy the sync state */
4318 memcpy ((char*)o + sizeof (MonoObject), (char*)obj + sizeof (MonoObject), size - sizeof (MonoObject));
4320 if (G_UNLIKELY (profile_allocs))
4321 mono_profiler_allocation (o, obj->vtable->klass);
4323 if (obj->vtable->klass->has_finalize)
4324 mono_object_register_finalizer (o);
4329 * mono_array_full_copy:
4330 * @src: source array to copy
4331 * @dest: destination array
4333 * Copies the content of one array to another with exactly the same type and size.
4336 mono_array_full_copy (MonoArray *src, MonoArray *dest)
4339 MonoClass *klass = src->obj.vtable->klass;
4341 MONO_ARCH_SAVE_REGS;
4343 g_assert (klass == dest->obj.vtable->klass);
4345 size = mono_array_length (src);
4346 g_assert (size == mono_array_length (dest));
4347 size *= mono_array_element_size (klass);
4349 if (klass->element_class->valuetype) {
4350 if (klass->element_class->has_references)
4351 mono_value_copy_array (dest, 0, mono_array_addr_with_size (src, 0, 0), mono_array_length (src));
4353 memcpy (&dest->vector, &src->vector, size);
4355 mono_array_memcpy_refs (dest, 0, src, 0, mono_array_length (src));
4358 memcpy (&dest->vector, &src->vector, size);
4363 * mono_array_clone_in_domain:
4364 * @domain: the domain in which the array will be cloned into
4365 * @array: the array to clone
4367 * This routine returns a copy of the array that is hosted on the
4368 * specified MonoDomain.
4371 mono_array_clone_in_domain (MonoDomain *domain, MonoArray *array)
4376 MonoClass *klass = array->obj.vtable->klass;
4378 MONO_ARCH_SAVE_REGS;
4380 if (array->bounds == NULL) {
4381 size = mono_array_length (array);
4382 o = mono_array_new_full (domain, klass, &size, NULL);
4384 size *= mono_array_element_size (klass);
4386 if (klass->element_class->valuetype) {
4387 if (klass->element_class->has_references)
4388 mono_value_copy_array (o, 0, mono_array_addr_with_size (array, 0, 0), mono_array_length (array));
4390 memcpy (&o->vector, &array->vector, size);
4392 mono_array_memcpy_refs (o, 0, array, 0, mono_array_length (array));
4395 memcpy (&o->vector, &array->vector, size);
4400 sizes = alloca (klass->rank * sizeof(intptr_t) * 2);
4401 size = mono_array_element_size (klass);
4402 for (i = 0; i < klass->rank; ++i) {
4403 sizes [i] = array->bounds [i].length;
4404 size *= array->bounds [i].length;
4405 sizes [i + klass->rank] = array->bounds [i].lower_bound;
4407 o = mono_array_new_full (domain, klass, sizes, (intptr_t*)sizes + klass->rank);
4409 if (klass->element_class->valuetype) {
4410 if (klass->element_class->has_references)
4411 mono_value_copy_array (o, 0, mono_array_addr_with_size (array, 0, 0), mono_array_length (array));
4413 memcpy (&o->vector, &array->vector, size);
4415 mono_array_memcpy_refs (o, 0, array, 0, mono_array_length (array));
4418 memcpy (&o->vector, &array->vector, size);
4426 * @array: the array to clone
4428 * Returns: A newly created array who is a shallow copy of @array
4431 mono_array_clone (MonoArray *array)
4433 return mono_array_clone_in_domain (((MonoObject *)array)->vtable->domain, array);
4436 /* helper macros to check for overflow when calculating the size of arrays */
4437 #ifdef MONO_BIG_ARRAYS
4438 #define MYGUINT64_MAX 0x0000FFFFFFFFFFFFUL
4439 #define MYGUINT_MAX MYGUINT64_MAX
4440 #define CHECK_ADD_OVERFLOW_UN(a,b) \
4441 (G_UNLIKELY ((guint64)(MYGUINT64_MAX) - (guint64)(b) < (guint64)(a)))
4442 #define CHECK_MUL_OVERFLOW_UN(a,b) \
4443 (G_UNLIKELY (((guint64)(a) > 0) && ((guint64)(b) > 0) && \
4444 ((guint64)(b) > ((MYGUINT64_MAX) / (guint64)(a)))))
4446 #define MYGUINT32_MAX 4294967295U
4447 #define MYGUINT_MAX MYGUINT32_MAX
4448 #define CHECK_ADD_OVERFLOW_UN(a,b) \
4449 (G_UNLIKELY ((guint32)(MYGUINT32_MAX) - (guint32)(b) < (guint32)(a)))
4450 #define CHECK_MUL_OVERFLOW_UN(a,b) \
4451 (G_UNLIKELY (((guint32)(a) > 0) && ((guint32)(b) > 0) && \
4452 ((guint32)(b) > ((MYGUINT32_MAX) / (guint32)(a)))))
4456 mono_array_calc_byte_len (MonoClass *class, uintptr_t len, uintptr_t *res)
4460 byte_len = mono_array_element_size (class);
4461 if (CHECK_MUL_OVERFLOW_UN (byte_len, len))
4464 if (CHECK_ADD_OVERFLOW_UN (byte_len, sizeof (MonoArray)))
4466 byte_len += sizeof (MonoArray);
4474 * mono_array_new_full:
4475 * @domain: domain where the object is created
4476 * @array_class: array class
4477 * @lengths: lengths for each dimension in the array
4478 * @lower_bounds: lower bounds for each dimension in the array (may be NULL)
4480 * This routine creates a new array objects with the given dimensions,
4481 * lower bounds and type.
4484 mono_array_new_full (MonoDomain *domain, MonoClass *array_class, uintptr_t *lengths, intptr_t *lower_bounds)
4486 uintptr_t byte_len, len, bounds_size;
4489 MonoArrayBounds *bounds;
4493 if (!array_class->inited)
4494 mono_class_init (array_class);
4498 /* A single dimensional array with a 0 lower bound is the same as an szarray */
4499 if (array_class->rank == 1 && ((array_class->byval_arg.type == MONO_TYPE_SZARRAY) || (lower_bounds && lower_bounds [0] == 0))) {
4501 if (len > MONO_ARRAY_MAX_INDEX)//MONO_ARRAY_MAX_INDEX
4505 bounds_size = sizeof (MonoArrayBounds) * array_class->rank;
4507 for (i = 0; i < array_class->rank; ++i) {
4508 if (lengths [i] > MONO_ARRAY_MAX_INDEX) //MONO_ARRAY_MAX_INDEX
4510 if (CHECK_MUL_OVERFLOW_UN (len, lengths [i]))
4511 mono_gc_out_of_memory (MONO_ARRAY_MAX_SIZE);
4516 if (!mono_array_calc_byte_len (array_class, len, &byte_len))
4517 mono_gc_out_of_memory (MONO_ARRAY_MAX_SIZE);
4521 if (CHECK_ADD_OVERFLOW_UN (byte_len, 3))
4522 mono_gc_out_of_memory (MONO_ARRAY_MAX_SIZE);
4523 byte_len = (byte_len + 3) & ~3;
4524 if (CHECK_ADD_OVERFLOW_UN (byte_len, bounds_size))
4525 mono_gc_out_of_memory (MONO_ARRAY_MAX_SIZE);
4526 byte_len += bounds_size;
4529 * Following three lines almost taken from mono_object_new ():
4530 * they need to be kept in sync.
4532 vtable = mono_class_vtable_full (domain, array_class, TRUE);
4533 #ifndef HAVE_SGEN_GC
4534 if (!array_class->has_references) {
4535 o = mono_object_allocate_ptrfree (byte_len, vtable);
4536 #if NEED_TO_ZERO_PTRFREE
4537 memset ((char*)o + sizeof (MonoObject), 0, byte_len - sizeof (MonoObject));
4539 } else if (vtable->gc_descr != GC_NO_DESCRIPTOR) {
4540 o = mono_object_allocate_spec (byte_len, vtable);
4542 o = mono_object_allocate (byte_len, vtable);
4545 array = (MonoArray*)o;
4546 array->max_length = len;
4549 bounds = (MonoArrayBounds*)((char*)array + byte_len - bounds_size);
4550 array->bounds = bounds;
4554 o = mono_gc_alloc_array (vtable, byte_len, len, bounds_size);
4556 o = mono_gc_alloc_vector (vtable, byte_len, len);
4557 array = (MonoArray*)o;
4558 mono_stats.new_object_count++;
4560 bounds = array->bounds;
4564 for (i = 0; i < array_class->rank; ++i) {
4565 bounds [i].length = lengths [i];
4567 bounds [i].lower_bound = lower_bounds [i];
4571 if (G_UNLIKELY (profile_allocs))
4572 mono_profiler_allocation (o, array_class);
4579 * @domain: domain where the object is created
4580 * @eclass: element class
4581 * @n: number of array elements
4583 * This routine creates a new szarray with @n elements of type @eclass.
4586 mono_array_new (MonoDomain *domain, MonoClass *eclass, uintptr_t n)
4590 MONO_ARCH_SAVE_REGS;
4592 ac = mono_array_class_get (eclass, 1);
4595 return mono_array_new_specific (mono_class_vtable_full (domain, ac, TRUE), n);
4599 * mono_array_new_specific:
4600 * @vtable: a vtable in the appropriate domain for an initialized class
4601 * @n: number of array elements
4603 * This routine is a fast alternative to mono_array_new() for code which
4604 * can be sure about the domain it operates in.
4607 mono_array_new_specific (MonoVTable *vtable, uintptr_t n)
4613 MONO_ARCH_SAVE_REGS;
4615 if (G_UNLIKELY (n > MONO_ARRAY_MAX_INDEX)) {
4620 if (!mono_array_calc_byte_len (vtable->klass, n, &byte_len)) {
4621 mono_gc_out_of_memory (MONO_ARRAY_MAX_SIZE);
4624 #ifndef HAVE_SGEN_GC
4625 if (!vtable->klass->has_references) {
4626 o = mono_object_allocate_ptrfree (byte_len, vtable);
4627 #if NEED_TO_ZERO_PTRFREE
4628 ((MonoArray*)o)->bounds = NULL;
4629 memset ((char*)o + sizeof (MonoObject), 0, byte_len - sizeof (MonoObject));
4631 } else if (vtable->gc_descr != GC_NO_DESCRIPTOR) {
4632 o = mono_object_allocate_spec (byte_len, vtable);
4634 /* printf("ARRAY: %s.%s.\n", vtable->klass->name_space, vtable->klass->name); */
4635 o = mono_object_allocate (byte_len, vtable);
4638 ao = (MonoArray *)o;
4641 o = mono_gc_alloc_vector (vtable, byte_len, n);
4643 mono_stats.new_object_count++;
4646 if (G_UNLIKELY (profile_allocs))
4647 mono_profiler_allocation (o, vtable->klass);
4653 * mono_string_new_utf16:
4654 * @text: a pointer to an utf16 string
4655 * @len: the length of the string
4657 * Returns: A newly created string object which contains @text.
4660 mono_string_new_utf16 (MonoDomain *domain, const guint16 *text, gint32 len)
4664 s = mono_string_new_size (domain, len);
4665 g_assert (s != NULL);
4667 memcpy (mono_string_chars (s), text, len * 2);
4673 * mono_string_new_size:
4674 * @text: a pointer to an utf16 string
4675 * @len: the length of the string
4677 * Returns: A newly created string object of @len
4680 mono_string_new_size (MonoDomain *domain, gint32 len)
4684 size_t size = (sizeof (MonoString) + ((len + 1) * 2));
4686 /* overflow ? can't fit it, can't allocate it! */
4688 mono_gc_out_of_memory (-1);
4690 vtable = mono_class_vtable (domain, mono_defaults.string_class);
4693 #ifndef HAVE_SGEN_GC
4694 s = mono_object_allocate_ptrfree (size, vtable);
4698 s = mono_gc_alloc_string (vtable, size, len);
4700 #if NEED_TO_ZERO_PTRFREE
4703 if (G_UNLIKELY (profile_allocs))
4704 mono_profiler_allocation ((MonoObject*)s, mono_defaults.string_class);
4710 * mono_string_new_len:
4711 * @text: a pointer to an utf8 string
4712 * @length: number of bytes in @text to consider
4714 * Returns: A newly created string object which contains @text.
4717 mono_string_new_len (MonoDomain *domain, const char *text, guint length)
4719 GError *error = NULL;
4720 MonoString *o = NULL;
4722 glong items_written;
4724 ut = g_utf8_to_utf16 (text, length, NULL, &items_written, &error);
4727 o = mono_string_new_utf16 (domain, ut, items_written);
4729 g_error_free (error);
4738 * @text: a pointer to an utf8 string
4740 * Returns: A newly created string object which contains @text.
4743 mono_string_new (MonoDomain *domain, const char *text)
4745 GError *error = NULL;
4746 MonoString *o = NULL;
4748 glong items_written;
4753 ut = g_utf8_to_utf16 (text, l, NULL, &items_written, &error);
4756 o = mono_string_new_utf16 (domain, ut, items_written);
4758 g_error_free (error);
4761 /*FIXME g_utf8_get_char, g_utf8_next_char and g_utf8_validate are not part of eglib.*/
4766 MonoString *o = NULL;
4768 if (!g_utf8_validate (text, -1, &end))
4771 len = g_utf8_strlen (text, -1);
4772 o = mono_string_new_size (domain, len);
4773 str = mono_string_chars (o);
4775 while (text < end) {
4776 *str++ = g_utf8_get_char (text);
4777 text = g_utf8_next_char (text);
4784 * mono_string_new_wrapper:
4785 * @text: pointer to utf8 characters.
4787 * Helper function to create a string object from @text in the current domain.
4790 mono_string_new_wrapper (const char *text)
4792 MonoDomain *domain = mono_domain_get ();
4794 MONO_ARCH_SAVE_REGS;
4797 return mono_string_new (domain, text);
4804 * @class: the class of the value
4805 * @value: a pointer to the unboxed data
4807 * Returns: A newly created object which contains @value.
4810 mono_value_box (MonoDomain *domain, MonoClass *class, gpointer value)
4816 g_assert (class->valuetype);
4817 if (mono_class_is_nullable (class))
4818 return mono_nullable_box (value, class);
4820 vtable = mono_class_vtable (domain, class);
4823 size = mono_class_instance_size (class);
4824 res = mono_object_new_alloc_specific (vtable);
4825 if (G_UNLIKELY (profile_allocs))
4826 mono_profiler_allocation (res, class);
4828 size = size - sizeof (MonoObject);
4831 g_assert (size == mono_class_value_size (class, NULL));
4832 mono_gc_wbarrier_value_copy ((char *)res + sizeof (MonoObject), value, 1, class);
4834 #if NO_UNALIGNED_ACCESS
4835 memcpy ((char *)res + sizeof (MonoObject), value, size);
4839 *((guint8 *) res + sizeof (MonoObject)) = *(guint8 *) value;
4842 *(guint16 *)((guint8 *) res + sizeof (MonoObject)) = *(guint16 *) value;
4845 *(guint32 *)((guint8 *) res + sizeof (MonoObject)) = *(guint32 *) value;
4848 *(guint64 *)((guint8 *) res + sizeof (MonoObject)) = *(guint64 *) value;
4851 memcpy ((char *)res + sizeof (MonoObject), value, size);
4855 if (class->has_finalize)
4856 mono_object_register_finalizer (res);
4862 * @dest: destination pointer
4863 * @src: source pointer
4864 * @klass: a valuetype class
4866 * Copy a valuetype from @src to @dest. This function must be used
4867 * when @klass contains references fields.
4870 mono_value_copy (gpointer dest, gpointer src, MonoClass *klass)
4872 mono_gc_wbarrier_value_copy (dest, src, 1, klass);
4876 * mono_value_copy_array:
4877 * @dest: destination array
4878 * @dest_idx: index in the @dest array
4879 * @src: source pointer
4880 * @count: number of items
4882 * Copy @count valuetype items from @src to the array @dest at index @dest_idx.
4883 * This function must be used when @klass contains references fields.
4884 * Overlap is handled.
4887 mono_value_copy_array (MonoArray *dest, int dest_idx, gpointer src, int count)
4889 int size = mono_array_element_size (dest->obj.vtable->klass);
4890 char *d = mono_array_addr_with_size (dest, size, dest_idx);
4891 g_assert (size == mono_class_value_size (mono_object_class (dest)->element_class, NULL));
4892 mono_gc_wbarrier_value_copy (d, src, count, mono_object_class (dest)->element_class);
4896 * mono_object_get_domain:
4897 * @obj: object to query
4899 * Returns: the MonoDomain where the object is hosted
4902 mono_object_get_domain (MonoObject *obj)
4904 return mono_object_domain (obj);
4908 * mono_object_get_class:
4909 * @obj: object to query
4911 * Returns: the MonOClass of the object.
4914 mono_object_get_class (MonoObject *obj)
4916 return mono_object_class (obj);
4919 * mono_object_get_size:
4920 * @o: object to query
4922 * Returns: the size, in bytes, of @o
4925 mono_object_get_size (MonoObject* o)
4927 MonoClass* klass = mono_object_class (o);
4928 if (klass == mono_defaults.string_class) {
4929 return sizeof (MonoString) + 2 * mono_string_length ((MonoString*) o) + 2;
4930 } else if (o->vtable->rank) {
4931 MonoArray *array = (MonoArray*)o;
4932 size_t size = sizeof (MonoArray) + mono_array_element_size (klass) * mono_array_length (array);
4933 if (array->bounds) {
4936 size += sizeof (MonoArrayBounds) * o->vtable->rank;
4940 return mono_class_instance_size (klass);
4945 * mono_object_unbox:
4946 * @obj: object to unbox
4948 * Returns: a pointer to the start of the valuetype boxed in this
4951 * This method will assert if the object passed is not a valuetype.
4954 mono_object_unbox (MonoObject *obj)
4956 /* add assert for valuetypes? */
4957 g_assert (obj->vtable->klass->valuetype);
4958 return ((char*)obj) + sizeof (MonoObject);
4962 * mono_object_isinst:
4964 * @klass: a pointer to a class
4966 * Returns: @obj if @obj is derived from @klass
4969 mono_object_isinst (MonoObject *obj, MonoClass *klass)
4972 mono_class_init (klass);
4974 if (klass->marshalbyref || (klass->flags & TYPE_ATTRIBUTE_INTERFACE))
4975 return mono_object_isinst_mbyref (obj, klass);
4980 return mono_class_is_assignable_from (klass, obj->vtable->klass) ? obj : NULL;
4984 mono_object_isinst_mbyref (MonoObject *obj, MonoClass *klass)
4993 if (klass->flags & TYPE_ATTRIBUTE_INTERFACE) {
4994 if (MONO_VTABLE_IMPLEMENTS_INTERFACE (vt, klass->interface_id)) {
4998 /*If the above check fails we are in the slow path of possibly raising an exception. So it's ok to it this way.*/
4999 if (mono_class_has_variant_generic_params (klass) && mono_class_is_assignable_from (klass, obj->vtable->klass))
5002 MonoClass *oklass = vt->klass;
5003 if ((oklass == mono_defaults.transparent_proxy_class))
5004 oklass = ((MonoTransparentProxy *)obj)->remote_class->proxy_class;
5006 if ((oklass->idepth >= klass->idepth) && (oklass->supertypes [klass->idepth - 1] == klass))
5010 if (vt->klass == mono_defaults.transparent_proxy_class && ((MonoTransparentProxy *)obj)->custom_type_info)
5012 MonoDomain *domain = mono_domain_get ();
5014 MonoObject *rp = (MonoObject *)((MonoTransparentProxy *)obj)->rp;
5015 MonoClass *rpklass = mono_defaults.iremotingtypeinfo_class;
5016 MonoMethod *im = NULL;
5019 im = mono_class_get_method_from_name (rpklass, "CanCastTo", -1);
5020 im = mono_object_get_virtual_method (rp, im);
5023 pa [0] = mono_type_get_object (domain, &klass->byval_arg);
5026 res = mono_runtime_invoke (im, rp, pa, NULL);
5028 if (*(MonoBoolean *) mono_object_unbox(res)) {
5029 /* Update the vtable of the remote type, so it can safely cast to this new type */
5030 mono_upgrade_remote_class (domain, obj, klass);
5039 * mono_object_castclass_mbyref:
5041 * @klass: a pointer to a class
5043 * Returns: @obj if @obj is derived from @klass, throws an exception otherwise
5046 mono_object_castclass_mbyref (MonoObject *obj, MonoClass *klass)
5048 if (!obj) return NULL;
5049 if (mono_object_isinst_mbyref (obj, klass)) return obj;
5051 mono_raise_exception (mono_exception_from_name (mono_defaults.corlib,
5053 "InvalidCastException"));
5058 MonoDomain *orig_domain;
5064 str_lookup (MonoDomain *domain, gpointer user_data)
5066 LDStrInfo *info = user_data;
5067 if (info->res || domain == info->orig_domain)
5069 info->res = mono_g_hash_table_lookup (domain->ldstr_table, info->ins);
5075 mono_string_get_pinned (MonoString *str)
5079 size = sizeof (MonoString) + 2 * (mono_string_length (str) + 1);
5080 news = mono_gc_alloc_pinned_obj (((MonoObject*)str)->vtable, size);
5081 memcpy (mono_string_chars (news), mono_string_chars (str), mono_string_length (str) * 2);
5082 news->length = mono_string_length (str);
5087 #define mono_string_get_pinned(str) (str)
5091 mono_string_is_interned_lookup (MonoString *str, int insert)
5093 MonoGHashTable *ldstr_table;
5097 domain = ((MonoObject *)str)->vtable->domain;
5098 ldstr_table = domain->ldstr_table;
5100 if ((res = mono_g_hash_table_lookup (ldstr_table, str))) {
5105 str = mono_string_get_pinned (str);
5106 mono_g_hash_table_insert (ldstr_table, str, str);
5110 LDStrInfo ldstr_info;
5111 ldstr_info.orig_domain = domain;
5112 ldstr_info.ins = str;
5113 ldstr_info.res = NULL;
5115 mono_domain_foreach (str_lookup, &ldstr_info);
5116 if (ldstr_info.res) {
5118 * the string was already interned in some other domain:
5119 * intern it in the current one as well.
5121 mono_g_hash_table_insert (ldstr_table, str, str);
5131 * mono_string_is_interned:
5132 * @o: String to probe
5134 * Returns whether the string has been interned.
5137 mono_string_is_interned (MonoString *o)
5139 return mono_string_is_interned_lookup (o, FALSE);
5143 * mono_string_intern:
5144 * @o: String to intern
5146 * Interns the string passed.
5147 * Returns: The interned string.
5150 mono_string_intern (MonoString *str)
5152 return mono_string_is_interned_lookup (str, TRUE);
5157 * @domain: the domain where the string will be used.
5158 * @image: a metadata context
5159 * @idx: index into the user string table.
5161 * Implementation for the ldstr opcode.
5162 * Returns: a loaded string from the @image/@idx combination.
5165 mono_ldstr (MonoDomain *domain, MonoImage *image, guint32 idx)
5167 MONO_ARCH_SAVE_REGS;
5169 if (image->dynamic) {
5170 MonoString *str = mono_lookup_dynamic_token (image, MONO_TOKEN_STRING | idx, NULL);
5173 if (!mono_verifier_verify_string_signature (image, idx, NULL))
5174 return NULL; /*FIXME we should probably be raising an exception here*/
5175 return mono_ldstr_metadata_sig (domain, mono_metadata_user_string (image, idx));
5180 * mono_ldstr_metadata_sig
5181 * @domain: the domain for the string
5182 * @sig: the signature of a metadata string
5184 * Returns: a MonoString for a string stored in the metadata
5187 mono_ldstr_metadata_sig (MonoDomain *domain, const char* sig)
5189 const char *str = sig;
5190 MonoString *o, *interned;
5193 len2 = mono_metadata_decode_blob_size (str, &str);
5196 o = mono_string_new_utf16 (domain, (guint16*)str, len2);
5197 #if G_BYTE_ORDER != G_LITTLE_ENDIAN
5200 guint16 *p2 = (guint16*)mono_string_chars (o);
5201 for (i = 0; i < len2; ++i) {
5202 *p2 = GUINT16_FROM_LE (*p2);
5208 if ((interned = mono_g_hash_table_lookup (domain->ldstr_table, o))) {
5210 /* o will get garbage collected */
5214 o = mono_string_get_pinned (o);
5215 mono_g_hash_table_insert (domain->ldstr_table, o, o);
5222 * mono_string_to_utf8:
5223 * @s: a System.String
5225 * Return the UTF8 representation for @s.
5226 * the resulting buffer nedds to be freed with g_free().
5228 * @deprecated Use mono_string_to_utf8_checked to avoid having an exception arbritraly raised.
5231 mono_string_to_utf8 (MonoString *s)
5234 char *result = mono_string_to_utf8_checked (s, &error);
5236 if (!mono_error_ok (&error))
5237 mono_error_raise_exception (&error);
5242 mono_string_to_utf8_checked (MonoString *s, MonoError *error)
5246 GError *gerror = NULL;
5248 mono_error_init (error);
5254 return g_strdup ("");
5256 as = g_utf16_to_utf8 (mono_string_chars (s), s->length, NULL, &written, &gerror);
5258 mono_error_set_argument (error, "string", "%s", gerror->message);
5259 g_error_free (gerror);
5262 /* g_utf16_to_utf8 may not be able to complete the convertion (e.g. NULL values were found, #335488) */
5263 if (s->length > written) {
5264 /* allocate the total length and copy the part of the string that has been converted */
5265 char *as2 = g_malloc0 (s->length);
5266 memcpy (as2, as, written);
5275 * mono_string_to_utf16:
5278 * Return an null-terminated array of the utf-16 chars
5279 * contained in @s. The result must be freed with g_free().
5280 * This is a temporary helper until our string implementation
5281 * is reworked to always include the null terminating char.
5284 mono_string_to_utf16 (MonoString *s)
5291 as = g_malloc ((s->length * 2) + 2);
5292 as [(s->length * 2)] = '\0';
5293 as [(s->length * 2) + 1] = '\0';
5296 return (gunichar2 *)(as);
5299 memcpy (as, mono_string_chars(s), s->length * 2);
5300 return (gunichar2 *)(as);
5304 * mono_string_from_utf16:
5305 * @data: the UTF16 string (LPWSTR) to convert
5307 * Converts a NULL terminated UTF16 string (LPWSTR) to a MonoString.
5309 * Returns: a MonoString.
5312 mono_string_from_utf16 (gunichar2 *data)
5314 MonoDomain *domain = mono_domain_get ();
5320 while (data [len]) len++;
5322 return mono_string_new_utf16 (domain, data, len);
5327 mono_string_to_utf8_internal (MonoMemPool *mp, MonoImage *image, MonoString *s, MonoError *error)
5333 r = mono_string_to_utf8_checked (s, error);
5334 if (!mono_error_ok (error))
5340 len = strlen (r) + 1;
5342 mp_s = mono_mempool_alloc (mp, len);
5344 mp_s = mono_image_alloc (image, len);
5346 memcpy (mp_s, r, len);
5354 * mono_string_to_utf8_image:
5355 * @s: a System.String
5357 * Same as mono_string_to_utf8, but allocate the string from the image mempool.
5360 mono_string_to_utf8_image (MonoImage *image, MonoString *s, MonoError *error)
5362 return mono_string_to_utf8_internal (NULL, image, s, error);
5366 * mono_string_to_utf8_mp:
5367 * @s: a System.String
5369 * Same as mono_string_to_utf8, but allocate the string from a mempool.
5372 mono_string_to_utf8_mp (MonoMemPool *mp, MonoString *s, MonoError *error)
5374 return mono_string_to_utf8_internal (mp, NULL, s, error);
5378 default_ex_handler (MonoException *ex)
5380 MonoObject *o = (MonoObject*)ex;
5381 g_error ("Exception %s.%s raised in C code", o->vtable->klass->name_space, o->vtable->klass->name);
5385 static MonoExceptionFunc ex_handler = default_ex_handler;
5388 * mono_install_handler:
5389 * @func: exception handler
5391 * This is an internal JIT routine used to install the handler for exceptions
5395 mono_install_handler (MonoExceptionFunc func)
5397 ex_handler = func? func: default_ex_handler;
5401 * mono_raise_exception:
5402 * @ex: exception object
5404 * Signal the runtime that the exception @ex has been raised in unmanaged code.
5407 mono_raise_exception (MonoException *ex)
5410 * NOTE: Do NOT annotate this function with G_GNUC_NORETURN, since
5411 * that will cause gcc to omit the function epilog, causing problems when
5412 * the JIT tries to walk the stack, since the return address on the stack
5413 * will point into the next function in the executable, not this one.
5416 if (((MonoObject*)ex)->vtable->klass == mono_defaults.threadabortexception_class) {
5417 MonoInternalThread *thread = mono_thread_internal_current ();
5418 g_assert (ex->object.vtable->domain == mono_domain_get ());
5419 MONO_OBJECT_SETREF (thread, abort_exc, ex);
5426 * mono_wait_handle_new:
5427 * @domain: Domain where the object will be created
5428 * @handle: Handle for the wait handle
5430 * Returns: A new MonoWaitHandle created in the given domain for the given handle
5433 mono_wait_handle_new (MonoDomain *domain, HANDLE handle)
5435 MonoWaitHandle *res;
5436 gpointer params [1];
5437 static MonoMethod *handle_set;
5439 res = (MonoWaitHandle *)mono_object_new (domain, mono_defaults.manualresetevent_class);
5441 /* Even though this method is virtual, it's safe to invoke directly, since the object type matches. */
5443 handle_set = mono_class_get_property_from_name (mono_defaults.manualresetevent_class, "Handle")->set;
5445 params [0] = &handle;
5446 mono_runtime_invoke (handle_set, res, params, NULL);
5452 mono_wait_handle_get_handle (MonoWaitHandle *handle)
5454 static MonoClassField *f_os_handle;
5455 static MonoClassField *f_safe_handle;
5457 if (!f_os_handle && !f_safe_handle) {
5458 f_os_handle = mono_class_get_field_from_name (mono_defaults.manualresetevent_class, "os_handle");
5459 f_safe_handle = mono_class_get_field_from_name (mono_defaults.manualresetevent_class, "safe_wait_handle");
5464 mono_field_get_value ((MonoObject*)handle, f_os_handle, &retval);
5468 mono_field_get_value ((MonoObject*)handle, f_safe_handle, &sh);
5475 mono_runtime_capture_context (MonoDomain *domain)
5477 RuntimeInvokeFunction runtime_invoke;
5479 if (!domain->capture_context_runtime_invoke || !domain->capture_context_method) {
5480 MonoMethod *method = mono_get_context_capture_method ();
5481 MonoMethod *wrapper;
5484 wrapper = mono_marshal_get_runtime_invoke (method, FALSE);
5485 domain->capture_context_runtime_invoke = mono_compile_method (wrapper);
5486 domain->capture_context_method = mono_compile_method (method);
5489 runtime_invoke = domain->capture_context_runtime_invoke;
5491 return runtime_invoke (NULL, NULL, NULL, domain->capture_context_method);
5494 * mono_async_result_new:
5495 * @domain:domain where the object will be created.
5496 * @handle: wait handle.
5497 * @state: state to pass to AsyncResult
5498 * @data: C closure data.
5500 * Creates a new MonoAsyncResult (AsyncResult C# class) in the given domain.
5501 * If the handle is not null, the handle is initialized to a MonOWaitHandle.
5505 mono_async_result_new (MonoDomain *domain, HANDLE handle, MonoObject *state, gpointer data, MonoObject *object_data)
5507 MonoAsyncResult *res = (MonoAsyncResult *)mono_object_new (domain, mono_defaults.asyncresult_class);
5508 MonoObject *context = mono_runtime_capture_context (domain);
5509 /* we must capture the execution context from the original thread */
5511 MONO_OBJECT_SETREF (res, execution_context, context);
5512 /* note: result may be null if the flow is suppressed */
5516 MONO_OBJECT_SETREF (res, object_data, object_data);
5517 MONO_OBJECT_SETREF (res, async_state, state);
5519 MONO_OBJECT_SETREF (res, handle, (MonoObject *) mono_wait_handle_new (domain, handle));
5521 res->sync_completed = FALSE;
5522 res->completed = FALSE;
5528 mono_message_init (MonoDomain *domain,
5529 MonoMethodMessage *this,
5530 MonoReflectionMethod *method,
5531 MonoArray *out_args)
5533 static MonoClass *object_array_klass;
5534 static MonoClass *byte_array_klass;
5535 static MonoClass *string_array_klass;
5536 MonoMethodSignature *sig = mono_method_signature (method->method);
5542 if (!object_array_klass) {
5545 klass = mono_array_class_get (mono_defaults.object_class, 1);
5548 mono_memory_barrier ();
5549 object_array_klass = klass;
5551 klass = mono_array_class_get (mono_defaults.byte_class, 1);
5554 mono_memory_barrier ();
5555 byte_array_klass = klass;
5557 klass = mono_array_class_get (mono_defaults.string_class, 1);
5560 mono_memory_barrier ();
5561 string_array_klass = klass;
5564 MONO_OBJECT_SETREF (this, method, method);
5566 MONO_OBJECT_SETREF (this, args, mono_array_new_specific (mono_class_vtable (domain, object_array_klass), sig->param_count));
5567 MONO_OBJECT_SETREF (this, arg_types, mono_array_new_specific (mono_class_vtable (domain, byte_array_klass), sig->param_count));
5568 this->async_result = NULL;
5569 this->call_type = CallType_Sync;
5571 names = g_new (char *, sig->param_count);
5572 mono_method_get_param_names (method->method, (const char **) names);
5573 MONO_OBJECT_SETREF (this, names, mono_array_new_specific (mono_class_vtable (domain, string_array_klass), sig->param_count));
5575 for (i = 0; i < sig->param_count; i++) {
5576 name = mono_string_new (domain, names [i]);
5577 mono_array_setref (this->names, i, name);
5581 for (i = 0, j = 0; i < sig->param_count; i++) {
5582 if (sig->params [i]->byref) {
5584 MonoObject* arg = mono_array_get (out_args, gpointer, j);
5585 mono_array_setref (this->args, i, arg);
5589 if (!(sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT))
5593 if (sig->params [i]->attrs & PARAM_ATTRIBUTE_OUT)
5596 mono_array_set (this->arg_types, guint8, i, arg_type);
5601 * mono_remoting_invoke:
5602 * @real_proxy: pointer to a RealProxy object
5603 * @msg: The MonoMethodMessage to execute
5604 * @exc: used to store exceptions
5605 * @out_args: used to store output arguments
5607 * This is used to call RealProxy::Invoke(). RealProxy::Invoke() returns an
5608 * IMessage interface and it is not trivial to extract results from there. So
5609 * we call an helper method PrivateInvoke instead of calling
5610 * RealProxy::Invoke() directly.
5612 * Returns: the result object.
5615 mono_remoting_invoke (MonoObject *real_proxy, MonoMethodMessage *msg,
5616 MonoObject **exc, MonoArray **out_args)
5618 MonoMethod *im = real_proxy->vtable->domain->private_invoke_method;
5621 /*static MonoObject *(*invoke) (gpointer, gpointer, MonoObject **, MonoArray **) = NULL;*/
5624 im = mono_class_get_method_from_name (mono_defaults.real_proxy_class, "PrivateInvoke", 4);
5626 real_proxy->vtable->domain->private_invoke_method = im;
5629 pa [0] = real_proxy;
5634 return mono_runtime_invoke (im, NULL, pa, exc);
5638 mono_message_invoke (MonoObject *target, MonoMethodMessage *msg,
5639 MonoObject **exc, MonoArray **out_args)
5641 static MonoClass *object_array_klass;
5644 MonoMethodSignature *sig;
5646 int i, j, outarg_count = 0;
5648 if (target && target->vtable->klass == mono_defaults.transparent_proxy_class) {
5650 MonoTransparentProxy* tp = (MonoTransparentProxy *)target;
5651 if (tp->remote_class->proxy_class->contextbound && tp->rp->context == (MonoObject *) mono_context_get ()) {
5652 target = tp->rp->unwrapped_server;
5654 return mono_remoting_invoke ((MonoObject *)tp->rp, msg, exc, out_args);
5658 domain = mono_domain_get ();
5659 method = msg->method->method;
5660 sig = mono_method_signature (method);
5662 for (i = 0; i < sig->param_count; i++) {
5663 if (sig->params [i]->byref)
5667 if (!object_array_klass) {
5670 klass = mono_array_class_get (mono_defaults.object_class, 1);
5673 mono_memory_barrier ();
5674 object_array_klass = klass;
5677 /* FIXME: GC ensure we insert a write barrier for out_args, maybe in the caller? */
5678 *out_args = mono_array_new_specific (mono_class_vtable (domain, object_array_klass), outarg_count);
5681 ret = mono_runtime_invoke_array (method, method->klass->valuetype? mono_object_unbox (target): target, msg->args, exc);
5683 for (i = 0, j = 0; i < sig->param_count; i++) {
5684 if (sig->params [i]->byref) {
5686 arg = mono_array_get (msg->args, gpointer, i);
5687 mono_array_setref (*out_args, j, arg);
5696 * mono_print_unhandled_exception:
5697 * @exc: The exception
5699 * Prints the unhandled exception.
5702 mono_print_unhandled_exception (MonoObject *exc)
5705 char *message = (char *) "";
5709 gboolean free_message = FALSE;
5711 if (mono_object_isinst (exc, mono_defaults.exception_class)) {
5712 klass = exc->vtable->klass;
5714 while (klass && method == NULL) {
5715 method = mono_class_get_method_from_name_flags (klass, "ToString", 0, METHOD_ATTRIBUTE_VIRTUAL | METHOD_ATTRIBUTE_PUBLIC);
5717 klass = klass->parent;
5722 str = (MonoString *) mono_runtime_invoke (method, exc, NULL, NULL);
5724 message = mono_string_to_utf8_checked (str, &error);
5725 if (!mono_error_ok (&error)) {
5726 mono_error_cleanup (&error);
5727 message = (char *)"";
5729 free_message = TRUE;
5735 * g_printerr ("\nUnhandled Exception: %s.%s: %s\n", exc->vtable->klass->name_space,
5736 * exc->vtable->klass->name, message);
5738 g_printerr ("\nUnhandled Exception: %s\n", message);
5745 * mono_delegate_ctor:
5746 * @this: pointer to an uninitialized delegate object
5747 * @target: target object
5748 * @addr: pointer to native code
5751 * Initialize a delegate and sets a specific method, not the one
5752 * associated with addr. This is useful when sharing generic code.
5753 * In that case addr will most probably not be associated with the
5754 * correct instantiation of the method.
5757 mono_delegate_ctor_with_method (MonoObject *this, MonoObject *target, gpointer addr, MonoMethod *method)
5759 MonoDelegate *delegate = (MonoDelegate *)this;
5766 delegate->method = method;
5768 class = this->vtable->klass;
5769 mono_stats.delegate_creations++;
5771 if (target && target->vtable->klass == mono_defaults.transparent_proxy_class) {
5773 method = mono_marshal_get_remoting_invoke (method);
5774 delegate->method_ptr = mono_compile_method (method);
5775 MONO_OBJECT_SETREF (delegate, target, target);
5776 } else if (method && mono_method_signature (method)->hasthis && method->klass->valuetype) {
5777 method = mono_marshal_get_unbox_wrapper (method);
5778 delegate->method_ptr = mono_compile_method (method);
5779 MONO_OBJECT_SETREF (delegate, target, target);
5781 delegate->method_ptr = addr;
5782 MONO_OBJECT_SETREF (delegate, target, target);
5785 delegate->invoke_impl = arch_create_delegate_trampoline (delegate->object.vtable->klass);
5789 * mono_delegate_ctor:
5790 * @this: pointer to an uninitialized delegate object
5791 * @target: target object
5792 * @addr: pointer to native code
5794 * This is used to initialize a delegate.
5797 mono_delegate_ctor (MonoObject *this, MonoObject *target, gpointer addr)
5799 MonoDomain *domain = mono_domain_get ();
5801 MonoMethod *method = NULL;
5805 if ((ji = mono_jit_info_table_find (domain, mono_get_addr_from_ftnptr (addr)))) {
5806 method = ji->method;
5807 g_assert (!method->klass->generic_container);
5810 mono_delegate_ctor_with_method (this, target, addr, method);
5814 * mono_method_call_message_new:
5815 * @method: method to encapsulate
5816 * @params: parameters to the method
5817 * @invoke: optional, delegate invoke.
5818 * @cb: async callback delegate.
5819 * @state: state passed to the async callback.
5821 * Translates arguments pointers into a MonoMethodMessage.
5824 mono_method_call_message_new (MonoMethod *method, gpointer *params, MonoMethod *invoke,
5825 MonoDelegate **cb, MonoObject **state)
5827 MonoDomain *domain = mono_domain_get ();
5828 MonoMethodSignature *sig = mono_method_signature (method);
5829 MonoMethodMessage *msg;
5832 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
5835 mono_message_init (domain, msg, mono_method_get_object (domain, invoke, NULL), NULL);
5836 count = sig->param_count - 2;
5838 mono_message_init (domain, msg, mono_method_get_object (domain, method, NULL), NULL);
5839 count = sig->param_count;
5842 for (i = 0; i < count; i++) {
5847 if (sig->params [i]->byref)
5848 vpos = *((gpointer *)params [i]);
5852 type = sig->params [i]->type;
5853 class = mono_class_from_mono_type (sig->params [i]);
5855 if (class->valuetype)
5856 arg = mono_value_box (domain, class, vpos);
5858 arg = *((MonoObject **)vpos);
5860 mono_array_setref (msg->args, i, arg);
5863 if (cb != NULL && state != NULL) {
5864 *cb = *((MonoDelegate **)params [i]);
5866 *state = *((MonoObject **)params [i]);
5873 * mono_method_return_message_restore:
5875 * Restore results from message based processing back to arguments pointers
5878 mono_method_return_message_restore (MonoMethod *method, gpointer *params, MonoArray *out_args)
5880 MonoMethodSignature *sig = mono_method_signature (method);
5881 int i, j, type, size, out_len;
5883 if (out_args == NULL)
5885 out_len = mono_array_length (out_args);
5889 for (i = 0, j = 0; i < sig->param_count; i++) {
5890 MonoType *pt = sig->params [i];
5895 mono_raise_exception (mono_get_exception_execution_engine ("The proxy call returned an incorrect number of output arguments"));
5897 arg = mono_array_get (out_args, gpointer, j);
5900 g_assert (type != MONO_TYPE_VOID);
5902 if (MONO_TYPE_IS_REFERENCE (pt)) {
5903 mono_gc_wbarrier_generic_store (*((MonoObject ***)params [i]), (MonoObject *)arg);
5906 MonoClass *class = ((MonoObject*)arg)->vtable->klass;
5907 size = mono_class_value_size (class, NULL);
5908 if (class->has_references)
5909 mono_gc_wbarrier_value_copy (*((gpointer *)params [i]), arg + sizeof (MonoObject), 1, class);
5911 memcpy (*((gpointer *)params [i]), arg + sizeof (MonoObject), size);
5913 size = mono_class_value_size (mono_class_from_mono_type (pt), NULL);
5914 memset (*((gpointer *)params [i]), 0, size);
5924 * mono_load_remote_field:
5925 * @this: pointer to an object
5926 * @klass: klass of the object containing @field
5927 * @field: the field to load
5928 * @res: a storage to store the result
5930 * This method is called by the runtime on attempts to load fields of
5931 * transparent proxy objects. @this points to such TP, @klass is the class of
5932 * the object containing @field. @res is a storage location which can be
5933 * used to store the result.
5935 * Returns: an address pointing to the value of field.
5938 mono_load_remote_field (MonoObject *this, MonoClass *klass, MonoClassField *field, gpointer *res)
5940 static MonoMethod *getter = NULL;
5941 MonoDomain *domain = mono_domain_get ();
5942 MonoTransparentProxy *tp = (MonoTransparentProxy *) this;
5943 MonoClass *field_class;
5944 MonoMethodMessage *msg;
5945 MonoArray *out_args;
5949 g_assert (this->vtable->klass == mono_defaults.transparent_proxy_class);
5950 g_assert (res != NULL);
5952 if (tp->remote_class->proxy_class->contextbound && tp->rp->context == (MonoObject *) mono_context_get ()) {
5953 mono_field_get_value (tp->rp->unwrapped_server, field, res);
5958 getter = mono_class_get_method_from_name (mono_defaults.object_class, "FieldGetter", -1);
5962 field_class = mono_class_from_mono_type (field->type);
5964 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
5965 out_args = mono_array_new (domain, mono_defaults.object_class, 1);
5966 mono_message_init (domain, msg, mono_method_get_object (domain, getter, NULL), out_args);
5968 full_name = mono_type_get_full_name (klass);
5969 mono_array_setref (msg->args, 0, mono_string_new (domain, full_name));
5970 mono_array_setref (msg->args, 1, mono_string_new (domain, mono_field_get_name (field)));
5973 mono_remoting_invoke ((MonoObject *)(tp->rp), msg, &exc, &out_args);
5975 if (exc) mono_raise_exception ((MonoException *)exc);
5977 if (mono_array_length (out_args) == 0)
5980 *res = mono_array_get (out_args, MonoObject *, 0); /* FIXME: GC write abrrier for res */
5982 if (field_class->valuetype) {
5983 return ((char *)*res) + sizeof (MonoObject);
5989 * mono_load_remote_field_new:
5994 * Missing documentation.
5997 mono_load_remote_field_new (MonoObject *this, MonoClass *klass, MonoClassField *field)
5999 static MonoMethod *getter = NULL;
6000 MonoDomain *domain = mono_domain_get ();
6001 MonoTransparentProxy *tp = (MonoTransparentProxy *) this;
6002 MonoClass *field_class;
6003 MonoMethodMessage *msg;
6004 MonoArray *out_args;
6005 MonoObject *exc, *res;
6008 g_assert (this->vtable->klass == mono_defaults.transparent_proxy_class);
6010 field_class = mono_class_from_mono_type (field->type);
6012 if (tp->remote_class->proxy_class->contextbound && tp->rp->context == (MonoObject *) mono_context_get ()) {
6014 if (field_class->valuetype) {
6015 res = mono_object_new (domain, field_class);
6016 val = ((gchar *) res) + sizeof (MonoObject);
6020 mono_field_get_value (tp->rp->unwrapped_server, field, val);
6025 getter = mono_class_get_method_from_name (mono_defaults.object_class, "FieldGetter", -1);
6029 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
6030 out_args = mono_array_new (domain, mono_defaults.object_class, 1);
6032 mono_message_init (domain, msg, mono_method_get_object (domain, getter, NULL), out_args);
6034 full_name = mono_type_get_full_name (klass);
6035 mono_array_setref (msg->args, 0, mono_string_new (domain, full_name));
6036 mono_array_setref (msg->args, 1, mono_string_new (domain, mono_field_get_name (field)));
6039 mono_remoting_invoke ((MonoObject *)(tp->rp), msg, &exc, &out_args);
6041 if (exc) mono_raise_exception ((MonoException *)exc);
6043 if (mono_array_length (out_args) == 0)
6046 res = mono_array_get (out_args, MonoObject *, 0);
6052 * mono_store_remote_field:
6053 * @this: pointer to an object
6054 * @klass: klass of the object containing @field
6055 * @field: the field to load
6056 * @val: the value/object to store
6058 * This method is called by the runtime on attempts to store fields of
6059 * transparent proxy objects. @this points to such TP, @klass is the class of
6060 * the object containing @field. @val is the new value to store in @field.
6063 mono_store_remote_field (MonoObject *this, MonoClass *klass, MonoClassField *field, gpointer val)
6065 static MonoMethod *setter = NULL;
6066 MonoDomain *domain = mono_domain_get ();
6067 MonoTransparentProxy *tp = (MonoTransparentProxy *) this;
6068 MonoClass *field_class;
6069 MonoMethodMessage *msg;
6070 MonoArray *out_args;
6075 g_assert (this->vtable->klass == mono_defaults.transparent_proxy_class);
6077 field_class = mono_class_from_mono_type (field->type);
6079 if (tp->remote_class->proxy_class->contextbound && tp->rp->context == (MonoObject *) mono_context_get ()) {
6080 if (field_class->valuetype) mono_field_set_value (tp->rp->unwrapped_server, field, val);
6081 else mono_field_set_value (tp->rp->unwrapped_server, field, *((MonoObject **)val));
6086 setter = mono_class_get_method_from_name (mono_defaults.object_class, "FieldSetter", -1);
6090 if (field_class->valuetype)
6091 arg = mono_value_box (domain, field_class, val);
6093 arg = *((MonoObject **)val);
6096 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
6097 mono_message_init (domain, msg, mono_method_get_object (domain, setter, NULL), NULL);
6099 full_name = mono_type_get_full_name (klass);
6100 mono_array_setref (msg->args, 0, mono_string_new (domain, full_name));
6101 mono_array_setref (msg->args, 1, mono_string_new (domain, mono_field_get_name (field)));
6102 mono_array_setref (msg->args, 2, arg);
6105 mono_remoting_invoke ((MonoObject *)(tp->rp), msg, &exc, &out_args);
6107 if (exc) mono_raise_exception ((MonoException *)exc);
6111 * mono_store_remote_field_new:
6117 * Missing documentation
6120 mono_store_remote_field_new (MonoObject *this, MonoClass *klass, MonoClassField *field, MonoObject *arg)
6122 static MonoMethod *setter = NULL;
6123 MonoDomain *domain = mono_domain_get ();
6124 MonoTransparentProxy *tp = (MonoTransparentProxy *) this;
6125 MonoClass *field_class;
6126 MonoMethodMessage *msg;
6127 MonoArray *out_args;
6131 g_assert (this->vtable->klass == mono_defaults.transparent_proxy_class);
6133 field_class = mono_class_from_mono_type (field->type);
6135 if (tp->remote_class->proxy_class->contextbound && tp->rp->context == (MonoObject *) mono_context_get ()) {
6136 if (field_class->valuetype) mono_field_set_value (tp->rp->unwrapped_server, field, ((gchar *) arg) + sizeof (MonoObject));
6137 else mono_field_set_value (tp->rp->unwrapped_server, field, arg);
6142 setter = mono_class_get_method_from_name (mono_defaults.object_class, "FieldSetter", -1);
6146 msg = (MonoMethodMessage *)mono_object_new (domain, mono_defaults.mono_method_message_class);
6147 mono_message_init (domain, msg, mono_method_get_object (domain, setter, NULL), NULL);
6149 full_name = mono_type_get_full_name (klass);
6150 mono_array_setref (msg->args, 0, mono_string_new (domain, full_name));
6151 mono_array_setref (msg->args, 1, mono_string_new (domain, mono_field_get_name (field)));
6152 mono_array_setref (msg->args, 2, arg);
6155 mono_remoting_invoke ((MonoObject *)(tp->rp), msg, &exc, &out_args);
6157 if (exc) mono_raise_exception ((MonoException *)exc);
6161 * mono_create_ftnptr:
6163 * Given a function address, create a function descriptor for it.
6164 * This is only needed on some platforms.
6167 mono_create_ftnptr (MonoDomain *domain, gpointer addr)
6169 return callbacks.create_ftnptr (domain, addr);
6173 * mono_get_addr_from_ftnptr:
6175 * Given a pointer to a function descriptor, return the function address.
6176 * This is only needed on some platforms.
6179 mono_get_addr_from_ftnptr (gpointer descr)
6181 return callbacks.get_addr_from_ftnptr (descr);
6185 * mono_string_chars:
6188 * Returns a pointer to the UCS16 characters stored in the MonoString
6191 mono_string_chars (MonoString *s)
6197 * mono_string_length:
6200 * Returns the lenght in characters of the string
6203 mono_string_length (MonoString *s)
6209 * mono_array_length:
6210 * @array: a MonoArray*
6212 * Returns the total number of elements in the array. This works for
6213 * both vectors and multidimensional arrays.
6216 mono_array_length (MonoArray *array)
6218 return array->max_length;
6222 * mono_array_addr_with_size:
6223 * @array: a MonoArray*
6224 * @size: size of the array elements
6225 * @idx: index into the array
6227 * Returns the address of the @idx element in the array.
6230 mono_array_addr_with_size (MonoArray *array, int size, uintptr_t idx)
6232 return ((char*)(array)->vector) + size * idx;