2 * null-gc.c: GC implementation using malloc: will leak everything, just for testing.
4 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
5 * Copyright 2004-2011 Novell, Inc (http://www.novell.com)
6 * Copyright 2011 Xamarin, Inc (http://www.xamarin.com)
11 #include <mono/metadata/mono-gc.h>
12 #include <mono/metadata/gc-internal.h>
13 #include <mono/metadata/runtime.h>
14 #include <mono/utils/atomic.h>
15 #include <mono/utils/mono-threads.h>
16 #include <mono/utils/mono-counters.h>
21 mono_gc_base_init (void)
23 MonoThreadInfoCallbacks cb;
26 mono_counters_init ();
28 memset (&cb, 0, sizeof (cb));
29 /* TODO: This casts away an incompatible pointer type warning in the same
30 manner that boehm-gc does it. This is probably worth investigating
32 cb.mono_method_is_critical = (gpointer)mono_runtime_is_critical_method;
33 cb.mono_gc_pthread_create = (gpointer)mono_gc_pthread_create;
34 cb.thread_exit = mono_gc_pthread_exit;
36 mono_threads_init (&cb, sizeof (MonoThreadInfo));
38 mono_thread_info_attach (&dummy);
42 mono_gc_collect (int generation)
47 mono_gc_max_generation (void)
53 mono_gc_get_generation (MonoObject *object)
59 mono_gc_collection_count (int generation)
65 mono_gc_add_memory_pressure (gint64 value)
69 /* maybe track the size, not important, though */
71 mono_gc_get_used_size (void)
77 mono_gc_get_heap_size (void)
83 mono_gc_is_gc_thread (void)
89 mono_gc_register_thread (void *baseptr)
95 mono_gc_walk_heap (int flags, MonoGCReferences callback, void *data)
101 mono_object_is_alive (MonoObject* o)
107 mono_gc_enable_events (void)
112 mono_gc_register_root (char *start, size_t size, void *descr)
118 mono_gc_deregister_root (char* addr)
123 mono_gc_weak_link_add (void **link_addr, MonoObject *obj, gboolean track)
129 mono_gc_weak_link_remove (void **link_addr, gboolean track)
135 mono_gc_weak_link_get (void **link_addr)
141 mono_gc_make_descr_for_string (gsize *bitmap, int numbits)
147 mono_gc_make_descr_for_object (gsize *bitmap, int numbits, size_t obj_size)
153 mono_gc_make_descr_for_array (int vector, gsize *elem_bitmap, int numbits, size_t elem_size)
159 mono_gc_make_descr_from_bitmap (gsize *bitmap, int numbits)
165 mono_gc_make_root_descr_all_refs (int numbits)
171 mono_gc_alloc_fixed (size_t size, void *descr)
173 return g_malloc0 (size);
177 mono_gc_free_fixed (void* addr)
183 mono_gc_wbarrier_set_field (MonoObject *obj, gpointer field_ptr, MonoObject* value)
185 *(void**)field_ptr = value;
189 mono_gc_wbarrier_set_arrayref (MonoArray *arr, gpointer slot_ptr, MonoObject* value)
191 *(void**)slot_ptr = value;
195 mono_gc_wbarrier_arrayref_copy (gpointer dest_ptr, gpointer src_ptr, int count)
197 mono_gc_memmove_aligned (dest_ptr, src_ptr, count * sizeof (gpointer));
201 mono_gc_wbarrier_generic_store (gpointer ptr, MonoObject* value)
203 *(void**)ptr = value;
207 mono_gc_wbarrier_generic_store_atomic (gpointer ptr, MonoObject *value)
209 InterlockedWritePointer (ptr, value);
213 mono_gc_wbarrier_generic_nostore (gpointer ptr)
218 mono_gc_wbarrier_value_copy (gpointer dest, gpointer src, int count, MonoClass *klass)
220 mono_gc_memmove_atomic (dest, src, count * mono_class_value_size (klass, NULL));
224 mono_gc_wbarrier_object_copy (MonoObject* obj, MonoObject *src)
226 /* do not copy the sync state */
227 mono_gc_memmove_aligned ((char*)obj + sizeof (MonoObject), (char*)src + sizeof (MonoObject),
228 mono_object_class (obj)->instance_size - sizeof (MonoObject));
232 mono_gc_is_critical_method (MonoMethod *method)
238 mono_gc_get_managed_allocator (MonoClass *klass, gboolean for_box)
244 mono_gc_get_managed_array_allocator (MonoClass *klass)
250 mono_gc_get_managed_allocator_by_type (int atype)
256 mono_gc_get_managed_allocator_types (void)
262 mono_gc_get_gc_name (void)
268 mono_gc_add_weak_track_handle (MonoObject *obj, guint32 gchandle)
273 mono_gc_change_weak_track_handle (MonoObject *old_obj, MonoObject *obj, guint32 gchandle)
278 mono_gc_remove_weak_track_handle (guint32 gchandle)
283 mono_gc_remove_weak_track_object (MonoDomain *domain, MonoObject *obj)
289 mono_gc_clear_domain (MonoDomain *domain)
294 mono_gc_get_suspend_signal (void)
300 mono_gc_get_restart_signal (void)
306 mono_gc_get_write_barrier (void)
308 g_assert_not_reached ();
313 mono_gc_invoke_with_gc_lock (MonoGCLockedCallbackFunc func, void *data)
319 mono_gc_get_description (void)
321 return g_strdup (DEFAULT_GC_NAME);
325 mono_gc_set_desktop_mode (void)
330 mono_gc_is_moving (void)
336 mono_gc_is_disabled (void)
342 mono_gc_wbarrier_value_copy_bitmap (gpointer _dest, gpointer _src, int size, unsigned bitmap)
344 g_assert_not_reached ();
348 mono_gc_get_card_table (int *shift_bits, gpointer *card_mask)
350 g_assert_not_reached ();
355 mono_gc_card_table_nursery_check (void)
357 g_assert_not_reached ();
362 mono_gc_get_nursery (int *shift_bits, size_t *size)
368 mono_gc_set_current_thread_appdomain (MonoDomain *domain)
373 mono_gc_precise_stack_mark_enabled (void)
379 mono_gc_get_logfile (void)
385 mono_gc_conservatively_scan_area (void *start, void *end)
387 g_assert_not_reached ();
391 mono_gc_scan_object (void *obj, void *gc_data)
393 g_assert_not_reached ();
398 mono_gc_get_bitmap_for_descr (void *descr, int *numbits)
400 g_assert_not_reached ();
405 mono_gc_set_gc_callbacks (MonoGCCallbacks *callbacks)
410 mono_gc_set_stack_end (void *stack_end)
415 mono_gc_get_los_limit (void)
421 mono_gc_user_markers_supported (void)
427 mono_gc_make_root_descr_user (MonoGCRootMarkFunc marker)
429 g_assert_not_reached ();
436 mono_gc_pthread_create (pthread_t *new_thread, const pthread_attr_t *attr, void *(*start_routine)(void *), void *arg)
438 return pthread_create (new_thread, attr, start_routine, arg);
442 mono_gc_pthread_join (pthread_t thread, void **retval)
444 return pthread_join (thread, retval);
448 mono_gc_pthread_detach (pthread_t thread)
450 return pthread_detach (thread);
454 mono_gc_pthread_exit (void *retval)
456 pthread_exit (retval);
459 void mono_gc_set_skip_thread (gboolean value)
465 BOOL APIENTRY mono_gc_dllmain (HMODULE module_handle, DWORD reason, LPVOID reserved)
472 mono_gc_get_vtable_bits (MonoClass *class)
478 mono_gc_register_altstack (gpointer stack, gint32 stack_size, gpointer altstack, gint32 altstack_size)
483 mono_gc_set_allow_synchronous_major (gboolean flag)