<?php /* * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * This software consists of voluntary contributions made by many individuals * and is licensed under the MIT license. For more information, see * <http://www.doctrine-project.org>. */ namespace Doctrine\Common\Cache; /** * Array cache driver. * * @link www.doctrine-project.org * @since 2.0 * @author Benjamin Eberlei <kontakt@beberlei.de> * @author Guilherme Blanco <guilhermeblanco@hotmail.com> * @author Jonathan Wage <jonwage@gmail.com> * @author Roman Borschel <roman@code-factory.org> * @author David Abdemoulaie <dave@hobodave.com> */ 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, ]; } }