<?php
namespace Illuminate\Cache;
class MemcachedLock extends Lock
{
/**
* The Memcached instance.
*
* @var \Memcached
*/
protected $memcached;
/**
* Create a new lock instance.
*
* @param \Memcached $memcached
* @param string $name
* @param int $seconds
* @param string|null $owner
* @return void
*/
public function __construct($memcached, $name, $seconds, $owner = null)
{
parent::__construct($name, $seconds, $owner);
$this->memcached = $memcached;
}
/**
* Attempt to acquire the lock.
*
* @return bool
*/
public function acquire()
{
return $this->memcached->add(
$this->name, $this->owner, $this->seconds
);
}
/**
* Release the lock.
*
* @return bool
*/
public function release()
{
if ($this->isOwnedByCurrentProcess()) {
return $this->memcached->delete($this->name);
}
return false;
}
/**
* Releases this lock in disregard of ownership.
*
* @return void
*/
public function forceRelease()
{
$this->memcached->delete($this->name);
}
/**
* Returns the owner value written into the driver for this lock.
*
* @return mixed
*/
protected function getCurrentOwner()
{
return $this->memcached->get($this->name);
}
}
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