/**
* Recover an abandoned lock
* @param RedisClient $redis
* @param mixed $key Item to lock
* @param null $ttl
* @return bool Was the lock acquired?
*/
protected function recover(RedisClient $redis, $key, $ttl = null)
{
if (($lockTimeout = $redis->get($key)) > time()) {
return false;
}
$expire = $this->expire_time($ttl);
$currentTimeout = $redis->getset($key, $expire);
if ($currentTimeout != $lockTimeout) {
return false;
}
return new Lock($key, $expire, $redis);
}