lock_release

Versions

7

lock_release($name)

Release a lock previously acquired by lock_acquire().

This will release the named lock if it is still held by the current request.

Parameters

$name The name of the lock.

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...

Code

includes/lock.inc, line 224

<?php
function lock_release($name) {
  global $locks;

  unset($locks[$name]);
  db_delete('semaphore')
    ->condition('name', $name)
    ->condition('value', _lock_id())
    ->execute();
}
?>

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