public function Redis_Lock_Backend_Predis::lockMayBeAvailable in Redis 7

Same name and namespace in other branches

1. 7.2 lib/Redis/Lock/Backend/Predis.php \Redis_Lock_Backend_Predis::lockMayBeAvailable()

Check if lock is available for acquire.

Parameters

string $name: Lock to acquire.

Return value

bool

Overrides Redis_Lock_Backend_Interface::lockMayBeAvailable

File

lib/Redis/Lock/Backend/Predis.php, line 89

Class

Redis_Lock_Backend_Predis

Predis lock backend implementation.

Code

public function lockMayBeAvailable($name) {
  $client = Redis_Client::getClient();
  $key = 'lock:' . $name;
  $id = $this
    ->getLockId();
  list($value, $owner) = $client
    ->mget(array(
    $key,
    $key . ':owner',
  ));
  return empty($value) || $id == $owner;
}