/*********************************************************************
* free_all()
*
* Empties all memory regions so that their entire buffer space is
* considered unused. This allows the client to restart without
* having to reallocate memory for the allocator regions, which helps
* performance when this package gets used serially.
*********************************************************************/
__private_extern__
void free_all(void) {
malloc_region * cur_region;
queue_iterate(&malloc_region_list, cur_region, malloc_region *, links) {
queue_init(&cur_region->block_list);
cur_region->free_size = cur_region->region_size - sizeof(malloc_region);
cur_region->free_address = &cur_region->buffer;
}
queue_init(&sorted_free_block_list);
#ifdef CLIENT_DEBUG
current_block_total = 0;
#endif /* CLIENT_DEBUG */
return;
} /* free_all() */
/*********************************************************************
* malloc_size()
*
*********************************************************************/
__private_extern__
size_t malloc_size(void * address) {
malloc_region * found_region = NULL;
malloc_block * found_block = NULL;
malloc_find_block(address, &found_block, &found_region);
/* If we couldn't find the requested block,
* the caller is in error so return 0.
*/
if (found_block == NULL) {
return 0;
// FIXME: panic?
}
return (found_block->block_size - sizeof(malloc_block));
} /* malloc_size() */
/*********************************************************************
* malloc_is_valid()
*
*********************************************************************/
__private_extern__
int malloc_is_valid(void * address){
malloc_region * found_region = NULL;
malloc_block * found_block = NULL;
malloc_find_block(address, &found_block, &found_region);
if (found_block != NULL) {
return 1;
} else {
return 0;
}
} /* malloc_is_valid() */