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