int beast_cache_init(int size)
{
int index;
if (beast_cache_initialization) {
return 0;
}
if (beast_mm_init(size) == -1) {
return -1;
}
beast_cache_locker = beast_locker_create();
if (beast_cache_locker == -1) {
beast_mm_destroy();
return -1;
}
beast_cache_buckets = beast_mm_malloc(sizeof(cache_item_t *) * BUCKETS_DEFAULT_SIZE);
if (!beast_cache_buckets) {
beast_locker_destroy(beast_cache_locker);
beast_mm_destroy();
return -1;
}
for (index = 0; index < BUCKETS_DEFAULT_SIZE; index++) {
beast_cache_buckets[index] = NULL;
}
beast_cache_initialization = 1;
return 0;
}
int beast_cache_destroy()
{
int index;
cache_item_t *item, *next;
if (!beast_cache_initialization) {
return 0;
}
beast_locker_lock(beast_cache_locker);
for (index = 0; index < BUCKETS_DEFAULT_SIZE; index++) {
item = beast_cache_buckets[index];
while (item) {
next = item->next;
beast_mm_free(item);
item = next;
}
}
beast_mm_free(beast_cache_buckets);
beast_mm_destroy();
beast_locker_unlock(beast_cache_locker);
beast_locker_destroy(beast_cache_locker);
beast_cache_initialization = 0;
return 0;
}
int beast_cache_init(int size)
{
int index, bucket_size;
if (beast_cache_initialization) {
return 0;
}
if (beast_mm_init(size) == -1) {
return -1;
}
/* init cache lock */
cache_lock = (int *)mmap(NULL, sizeof(int), PROT_READ|PROT_WRITE,
MAP_SHARED|MAP_ANON, -1, 0);
if (!cache_lock) {
beast_write_log(beast_log_error,
"Unable alloc share memory for cache lock");
beast_mm_destroy();
return -1;
}
*cache_lock = 0;
/* init cache buckets's memory */
bucket_size = sizeof(cache_item_t *) * BUCKETS_DEFAULT_SIZE;
beast_cache_buckets = (cache_item_t **)mmap(NULL, bucket_size,
PROT_READ|PROT_WRITE, MAP_SHARED|MAP_ANON, -1, 0);
if (!beast_cache_buckets) {
beast_write_log(beast_log_error,
"Unable alloc share memory for cache buckets");
munmap(cache_lock, sizeof(int));
beast_mm_destroy();
return -1;
}
for (index = 0; index < BUCKETS_DEFAULT_SIZE; index++) {
beast_cache_buckets[index] = NULL;
}
beast_cache_initialization = 1;
return 0;
}
int beast_cache_init(int size)
{
int index, bucket_size;
char lock_file[512];
if (beast_cache_initialization) {
return 0;
}
if (beast_mm_init(size) == -1) {
return -1;
}
sprintf(lock_file, "%s/beast.clock", beast_lock_path);
beast_cache_locker = beast_locker_create(lock_file);
if (beast_cache_locker == NULL) {
beast_write_log(beast_log_error, "Unable create cache "
"locker for beast");
beast_mm_destroy();
return -1;
}
bucket_size = sizeof(cache_item_t *) * BUCKETS_DEFAULT_SIZE;
beast_cache_buckets = (cache_item_t **)mmap(NULL, bucket_size,
PROT_READ|PROT_WRITE, MAP_SHARED|MAP_ANON, -1, 0);
if (!beast_cache_buckets) {
beast_write_log(beast_log_error, "Unable alloc memory for beast");
beast_locker_destroy(beast_cache_locker);
beast_mm_destroy();
return -1;
}
for (index = 0; index < BUCKETS_DEFAULT_SIZE; index++) {
beast_cache_buckets[index] = NULL;
}
beast_cache_initialization = 1;
return 0;
}
int beast_cache_destroy()
{
int index;
cache_item_t *item, *next;
int pid = (int)getpid();
if (!beast_cache_initialization) {
return 0;
}
beast_mm_destroy(); /* destroy memory manager */
/* free cache buckets's mmap memory */
munmap(beast_cache_buckets, sizeof(cache_item_t *) * BUCKETS_DEFAULT_SIZE);
munmap(cache_lock, sizeof(int));
beast_cache_initialization = 0;
return 0;
}
