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    <h3>Editing: CacheLock.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php

namespace Illuminate\Cache;

class CacheLock extends Lock
{
    /**
     * The cache store implementation.
     *
     * @var \Illuminate\Contracts\Cache\Store
     */
    protected $store;

    /**
     * Create a new lock instance.
     *
     * @param  \Illuminate\Contracts\Cache\Store  $store
     * @param  string  $name
     * @param  int  $seconds
     * @param  string|null  $owner
     * @return void
     */
    public function __construct($store, $name, $seconds, $owner = null)
    {
        parent::__construct($name, $seconds, $owner);

        $this-&gt;store = $store;
    }

    /**
     * Attempt to acquire the lock.
     *
     * @return bool
     */
    public function acquire()
    {
        if (method_exists($this-&gt;store, 'add') &amp;&amp; $this-&gt;seconds &gt; 0) {
            return $this-&gt;store-&gt;add(
                $this-&gt;name, $this-&gt;owner, $this-&gt;seconds
            );
        }

        if (! is_null($this-&gt;store-&gt;get($this-&gt;name))) {
            return false;
        }

        return ($this-&gt;seconds &gt; 0)
                ? $this-&gt;store-&gt;put($this-&gt;name, $this-&gt;owner, $this-&gt;seconds)
                : $this-&gt;store-&gt;forever($this-&gt;name, $this-&gt;owner, $this-&gt;seconds);
    }

    /**
     * Release the lock.
     *
     * @return bool
     */
    public function release()
    {
        if ($this-&gt;isOwnedByCurrentProcess()) {
            return $this-&gt;store-&gt;forget($this-&gt;name);
        }

        return false;
    }

    /**
     * Releases this lock regardless of ownership.
     *
     * @return void
     */
    public function forceRelease()
    {
        $this-&gt;store-&gt;forget($this-&gt;name);
    }

    /**
     * Returns the owner value written into the driver for this lock.
     *
     * @return mixed
     */
    protected function getCurrentOwner()
    {
        return $this-&gt;store-&gt;get($this-&gt;name);
    }
}
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