function _apdqc_lock_id in Asynchronous Prefetch Database Query Cache 7

Same name in this branch

1. 7 apdqc.lock.apc.inc \_apdqc_lock_id()
2. 7 apdqc.lock.db.inc \_apdqc_lock_id()
3. 7 apdqc.lock.memcache_storage.inc \_apdqc_lock_id()
4. 7 apdqc.lock.memcache.inc \_apdqc_lock_id()
5. 7 apdqc.lock.redis.inc \_apdqc_lock_id()

Generate a unique identifier for locks generated during this request.

1 call to _apdqc_lock_id()

apdqc.lock.inc in ./apdqc.lock.inc

A database-mediated implementation of a locking mechanism.

1 string reference to '_apdqc_lock_id'

apdqc.lock.inc in ./apdqc.lock.inc

A database-mediated implementation of a locking mechanism.

File

./apdqc.lock.memcache.inc, line 147

A memcache based implementation of a locking mechanism.

Code

function _apdqc_lock_id() {
  static $lock_id;
  if (!isset($lock_id)) {
    $lock_id = uniqid(mt_rand(), TRUE);

    // We only register a shutdown function if a lock is used.
    register_shutdown_function('lock_release_all', $lock_id);
  }
  return $lock_id;
}