function lock_release_all

7.x lock.inc lock_release_all($lock_id = NULL)
6.x lock.inc lock_release_all($lock_id = NULL)
6.x lock-install.inc lock_release_all($lock_id = NULL)

Release all previously acquired locks.

Related topics

Functions to coordinate long-running operations across requests.
In most environments, multiple Drupal page requests (a.k.a. threads or processes) will execute in parallel. This leads to potential conflicts or race conditions when two requests execute the same code at the same time. A common example of this is a…
1 string reference to 'lock_release_all'
_lock_id in drupal-6.x/includes/lock.inc
Helper function to get this request's unique id.

File

drupal-6.x/includes/lock.inc, line 216
A database-mediated implementation of a locking mechanism.

Code

function lock_release_all($lock_id = NULL) {
  global $locks;

  $locks = array();
  if (empty($lock_id)) {
    $lock_id = _lock_id();
  }

  db_query("DELETE FROM {semaphore} WHERE value = '%s'", _lock_id());
}