107 lines
2.1 KiB
PHP
107 lines
2.1 KiB
PHP
<?php
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namespace Illuminate\Cache;
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use Illuminate\Support\Carbon;
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class ArrayLock extends Lock
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{
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/**
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* The parent array cache store.
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*
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* @var \Illuminate\Cache\ArrayStore
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*/
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protected $store;
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/**
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* Create a new lock instance.
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*
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* @param \Illuminate\Cache\ArrayStore $store
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* @param string $name
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* @param int $seconds
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* @param string|null $owner
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* @return void
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*/
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public function __construct($store, $name, $seconds, $owner = null)
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{
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parent::__construct($name, $seconds, $owner);
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$this->store = $store;
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}
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/**
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* Attempt to acquire the lock.
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*
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* @return bool
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*/
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public function acquire()
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{
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$expiration = $this->store->locks[$this->name]['expiresAt'] ?? Carbon::now()->addSecond();
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if ($this->exists() && $expiration->isFuture()) {
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return false;
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}
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$this->store->locks[$this->name] = [
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'owner' => $this->owner,
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'expiresAt' => $this->seconds === 0 ? null : Carbon::now()->addSeconds($this->seconds),
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];
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return true;
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}
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/**
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* Determine if the current lock exists.
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*
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* @return bool
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*/
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protected function exists()
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{
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return isset($this->store->locks[$this->name]);
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}
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/**
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* Release the lock.
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*
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* @return bool
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*/
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public function release()
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{
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if (! $this->exists()) {
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return false;
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}
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if (! $this->isOwnedByCurrentProcess()) {
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return false;
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}
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$this->forceRelease();
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return true;
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}
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/**
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* Returns the owner value written into the driver for this lock.
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*
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* @return string
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*/
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protected function getCurrentOwner()
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{
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if (! $this->exists()) {
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return null;
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}
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return $this->store->locks[$this->name]['owner'];
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}
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/**
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* Releases this lock in disregard of ownership.
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*
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* @return void
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*/
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public function forceRelease()
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{
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unset($this->store->locks[$this->name]);
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}
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}
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