mono/metadata/null-gc.c

   1 /*
   2  * null-gc.c: GC implementation using malloc: will leak everything, just for testing.
   3  *
   4  * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
   5  * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
   6  */
   7
   8 #include "config.h"
   9 #include <glib.h>
  10 #include <mono/metadata/mono-gc.h>
  11 #include <mono/metadata/gc-internal.h>
  12
  13 #ifdef HAVE_NULL_GC
  14
  15 void
  16 mono_gc_base_init (void)
  17 {
  18 }
  19
  20 void
  21 mono_gc_collect (int generation)
  22 {
  23 }
  24
  25 int
  26 mono_gc_max_generation (void)
  27 {
  28         return 0;
  29 }
  30
  31 int
  32 mono_gc_get_generation  (MonoObject *object)
  33 {
  34         return 0;
  35 }
  36
  37 int
  38 mono_gc_collection_count (int generation)
  39 {
  40         return 0;
  41 }
  42
  43 void
  44 mono_gc_add_memory_pressure (gint64 value)
  45 {
  46 }
  47
  48 /* maybe track the size, not important, though */
  49 int64_t
  50 mono_gc_get_used_size (void)
  51 {
  52         return 1024*1024;
  53 }
  54
  55 int64_t
  56 mono_gc_get_heap_size (void)
  57 {
  58         return 2*1024*1024;
  59 }
  60
  61 void
  62 mono_gc_disable (void)
  63 {
  64 }
  65
  66 void
  67 mono_gc_enable (void)
  68 {
  69 }
  70
  71 gboolean
  72 mono_gc_is_gc_thread (void)
  73 {
  74         return TRUE;
  75 }
  76
  77 gboolean
  78 mono_gc_register_thread (void *baseptr)
  79 {
  80         return TRUE;
  81 }
  82
  83 gboolean
  84 mono_object_is_alive (MonoObject* o)
  85 {
  86         return TRUE;
  87 }
  88
  89 void
  90 mono_gc_enable_events (void)
  91 {
  92 }
  93
  94 int
  95 mono_gc_register_root (char *start, size_t size, void *descr)
  96 {
  97         return TRUE;
  98 }
  99
 100 void
 101 mono_gc_deregister_root (char* addr)
 102 {
 103 }
 104
 105 void
 106 mono_gc_weak_link_add (void **link_addr, MonoObject *obj, gboolean track)
 107 {
 108         *link_addr = obj;
 109 }
 110
 111 void
 112 mono_gc_weak_link_remove (void **link_addr)
 113 {
 114         *link_addr = NULL;
 115 }
 116
 117 MonoObject*
 118 mono_gc_weak_link_get (void **link_addr)
 119 {
 120         return *link_addr;
 121 }
 122
 123 void*
 124 mono_gc_make_descr_for_string (gsize *bitmap, int numbits)
 125 {
 126         return NULL;
 127 }
 128
 129 void*
 130 mono_gc_make_descr_for_object (gsize *bitmap, int numbits, size_t obj_size)
 131 {
 132         return NULL;
 133 }
 134
 135 void*
 136 mono_gc_make_descr_for_array (int vector, gsize *elem_bitmap, int numbits, size_t elem_size)
 137 {
 138         return NULL;
 139 }
 140
 141 void*
 142 mono_gc_make_descr_from_bitmap (gsize *bitmap, int numbits)
 143 {
 144         return NULL;
 145 }
 146
 147 void*
 148 mono_gc_alloc_fixed (size_t size, void *descr)
 149 {
 150         return g_malloc0 (size);
 151 }
 152
 153 void
 154 mono_gc_free_fixed (void* addr)
 155 {
 156         g_free (addr);
 157 }
 158
 159 void
 160 mono_gc_wbarrier_set_field (MonoObject *obj, gpointer field_ptr, MonoObject* value)
 161 {
 162         *(void**)field_ptr = value;
 163 }
 164
 165 void
 166 mono_gc_wbarrier_set_arrayref (MonoArray *arr, gpointer slot_ptr, MonoObject* value)
 167 {
 168         *(void**)slot_ptr = value;
 169 }
 170
 171 void
 172 mono_gc_wbarrier_arrayref_copy (gpointer dest_ptr, gpointer src_ptr, int count)
 173 {
 174         memmove (dest_ptr, src_ptr, count * sizeof (gpointer));
 175 }
 176
 177 void
 178 mono_gc_wbarrier_generic_store (gpointer ptr, MonoObject* value)
 179 {
 180         *(void**)ptr = value;
 181 }
 182
 183 void
 184 mono_gc_wbarrier_generic_nostore (gpointer ptr)
 185 {
 186 }
 187
 188 void
 189 mono_gc_wbarrier_value_copy (gpointer dest, gpointer src, int count, MonoClass *klass)
 190 {
 191         memmove (dest, src, count * mono_class_value_size (klass, NULL));
 192 }
 193
 194 void
 195 mono_gc_wbarrier_object_copy (MonoObject* obj, MonoObject *src)
 196 {
 197         /* do not copy the sync state */
 198         memcpy ((char*)obj + sizeof (MonoObject), (char*)src + sizeof (MonoObject),
 199                         mono_object_class (obj)->instance_size - sizeof (MonoObject));
 200 }
 201
 202 MonoMethod*
 203 mono_gc_get_managed_allocator (MonoVTable *vtable, gboolean for_box)
 204 {
 205         return NULL;
 206 }
 207
 208 MonoMethod*
 209 mono_gc_get_managed_array_allocator (MonoVTable *vtable, int rank)
 210 {
 211         return NULL;
 212 }
 213
 214 MonoMethod*
 215 mono_gc_get_managed_allocator_by_type (int atype)
 216 {
 217         return NULL;
 218 }
 219
 220 guint32
 221 mono_gc_get_managed_allocator_types (void)
 222 {
 223         return 0;
 224 }
 225
 226 const char *
 227 mono_gc_get_gc_name (void)
 228 {
 229         return "null";
 230 }
 231
 232 void
 233 mono_gc_add_weak_track_handle (MonoObject *obj, guint32 gchandle)
 234 {
 235 }
 236
 237 void
 238 mono_gc_change_weak_track_handle (MonoObject *old_obj, MonoObject *obj, guint32 gchandle)
 239 {
 240 }
 241
 242 void
 243 mono_gc_remove_weak_track_handle (guint32 gchandle)
 244 {
 245 }
 246
 247 GSList*
 248 mono_gc_remove_weak_track_object (MonoDomain *domain, MonoObject *obj)
 249 {
 250         return NULL;
 251 }
 252
 253 void
 254 mono_gc_clear_domain (MonoDomain *domain)
 255 {
 256 }
 257
 258 int
 259 mono_gc_get_suspend_signal (void)
 260 {
 261         return -1;
 262 }
 263
 264 MonoMethod*
 265 mono_gc_get_write_barrier (void)
 266 {
 267         g_assert_not_reached ();
 268         return NULL;
 269 }
 270
 271 void*
 272 mono_gc_invoke_with_gc_lock (MonoGCLockedCallbackFunc func, void *data)
 273 {
 274         return func (data);
 275 }
 276
 277 char*
 278 mono_gc_get_description (void)
 279 {
 280         return g_strdup (DEFAULT_GC_NAME);
 281 }
 282
 283 void
 284 mono_gc_set_desktop_mode (void)
 285 {
 286 }
 287
 288 gboolean
 289 mono_gc_is_moving (void)
 290 {
 291         return FALSE;
 292 }
 293
 294 gboolean
 295 mono_gc_is_disabled (void)
 296 {
 297         return FALSE;
 298 }
 299
 300 void
 301 mono_gc_wbarrier_value_copy_bitmap (gpointer _dest, gpointer _src, int size, unsigned bitmap)
 302 {
 303         g_assert_not_reached ();
 304 }
 305
 306 #ifndef HOST_WIN32
 307
 308 int
 309 mono_gc_pthread_create (pthread_t *new_thread, const pthread_attr_t *attr, void *(*start_routine)(void *), void *arg)
 310 {
 311         return pthread_create (new_thread, attr, start_routine, arg);
 312 }
 313
 314 int
 315 mono_gc_pthread_join (pthread_t thread, void **retval)
 316 {
 317         return pthread_join (thread, retval);
 318 }
 319
 320 int
 321 mono_gc_pthread_detach (pthread_t thread)
 322 {
 323         return pthread_detach (thread);
 324 }
 325
 326 #endif
 327
 328 #endif