struct ast_heap *ast_heap_destroy(struct ast_heap *h)
{
ast_free(h->heap);
h->heap = NULL;
ast_rwlock_destroy(&h->lock);
ast_free(h);
return NULL;
}
static void interface_destroy_cb(void *obj)
{
struct interface_ao2_wrapper *wrapper = obj;
ast_rwlock_destroy(&wrapper->wraplock);
}
static int internal_ao2_ref(void *user_data, int delta, const char *file, int line, const char *func)
{
struct astobj2 *obj = INTERNAL_OBJ(user_data);
struct astobj2_lock *obj_mutex;
struct astobj2_rwlock *obj_rwlock;
int current_value;
int ret;
if (obj == NULL) {
ast_assert(0);
return -1;
}
/* if delta is 0, just return the refcount */
if (delta == 0) {
return obj->priv_data.ref_counter;
}
/* we modify with an atomic operation the reference counter */
ret = ast_atomic_fetchadd_int(&obj->priv_data.ref_counter, delta);
current_value = ret + delta;
#ifdef AO2_DEBUG
ast_atomic_fetchadd_int(&ao2.total_refs, delta);
#endif
if (0 < current_value) {
/* The object still lives. */
return ret;
}
/* this case must never happen */
if (current_value < 0) {
ast_log(__LOG_ERROR, file, line, func,
"Invalid refcount %d on ao2 object %p\n", current_value, user_data);
ast_assert(0);
/* stop here even if assert doesn't DO_CRASH */
return -1;
}
/* last reference, destroy the object */
if (obj->priv_data.destructor_fn != NULL) {
obj->priv_data.destructor_fn(user_data);
}
#ifdef AO2_DEBUG
ast_atomic_fetchadd_int(&ao2.total_mem, - obj->priv_data.data_size);
ast_atomic_fetchadd_int(&ao2.total_objects, -1);
#endif
/* In case someone uses an object after it's been freed */
obj->priv_data.magic = 0;
switch (obj->priv_data.options & AO2_ALLOC_OPT_LOCK_MASK) {
case AO2_ALLOC_OPT_LOCK_MUTEX:
obj_mutex = INTERNAL_OBJ_MUTEX(user_data);
ast_mutex_destroy(&obj_mutex->mutex.lock);
ast_free(obj_mutex);
break;
case AO2_ALLOC_OPT_LOCK_RWLOCK:
obj_rwlock = INTERNAL_OBJ_RWLOCK(user_data);
ast_rwlock_destroy(&obj_rwlock->rwlock.lock);
ast_free(obj_rwlock);
break;
case AO2_ALLOC_OPT_LOCK_NOLOCK:
ast_free(obj);
break;
default:
ast_log(__LOG_ERROR, file, line, func,
"Invalid lock option on ao2 object %p\n", user_data);
break;
}
return ret;
}
