114 lines
2.0 KiB
PHP
114 lines
2.0 KiB
PHP
<?php
|
|
|
|
namespace Doctrine\Common\Cache;
|
|
|
|
use function time;
|
|
|
|
/**
|
|
* Array cache driver.
|
|
*
|
|
* @link www.doctrine-project.org
|
|
*/
|
|
class ArrayCache extends CacheProvider
|
|
{
|
|
/** @var array[] $data each element being a tuple of [$data, $expiration], where the expiration is int|bool */
|
|
private $data = [];
|
|
|
|
/** @var int */
|
|
private $hitsCount = 0;
|
|
|
|
/** @var int */
|
|
private $missesCount = 0;
|
|
|
|
/** @var int */
|
|
private $upTime;
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
public function __construct()
|
|
{
|
|
$this->upTime = time();
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
protected function doFetch($id)
|
|
{
|
|
if (! $this->doContains($id)) {
|
|
$this->missesCount += 1;
|
|
|
|
return false;
|
|
}
|
|
|
|
$this->hitsCount += 1;
|
|
|
|
return $this->data[$id][0];
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
protected function doContains($id)
|
|
{
|
|
if (! isset($this->data[$id])) {
|
|
return false;
|
|
}
|
|
|
|
$expiration = $this->data[$id][1];
|
|
|
|
if ($expiration && $expiration < time()) {
|
|
$this->doDelete($id);
|
|
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
protected function doSave($id, $data, $lifeTime = 0)
|
|
{
|
|
$this->data[$id] = [$data, $lifeTime ? time() + $lifeTime : false];
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
protected function doDelete($id)
|
|
{
|
|
unset($this->data[$id]);
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
protected function doFlush()
|
|
{
|
|
$this->data = [];
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* {@inheritdoc}
|
|
*/
|
|
protected function doGetStats()
|
|
{
|
|
return [
|
|
Cache::STATS_HITS => $this->hitsCount,
|
|
Cache::STATS_MISSES => $this->missesCount,
|
|
Cache::STATS_UPTIME => $this->upTime,
|
|
Cache::STATS_MEMORY_USAGE => null,
|
|
Cache::STATS_MEMORY_AVAILABLE => null,
|
|
];
|
|
}
|
|
}
|