function system_test_lock_exit in Drupal 7
Try to acquire a specific lock, and then exit.
2 string references to 'system_test_lock_exit'
- LockFunctionalTest::testLockAcquire in modules/simpletest/ tests/ lock.test 
- Confirm that we can acquire and release locks in two parallel requests.
- system_test_menu in modules/simpletest/ tests/ system_test.module 
- Implements hook_menu().
File
- modules/simpletest/ tests/ system_test.module, line 349 
Code
function system_test_lock_exit() {
  if (lock_acquire('system_test_lock_exit', 900)) {
    echo 'TRUE: Lock successfully acquired in system_test_lock_exit()';
    // The shut-down function should release the lock.
    exit;
  }
  else {
    return 'FALSE: Lock not acquired in system_test_lock_exit()';
  }
}