81 lines
2.5 KiB
PHP
81 lines
2.5 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Cache\Messenger;
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use Symfony\Component\Cache\CacheItem;
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use Symfony\Component\DependencyInjection\ReverseContainer;
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use Symfony\Component\Messenger\Handler\MessageHandlerInterface;
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/**
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* Computes cached values sent to a message bus.
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*/
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class EarlyExpirationHandler implements MessageHandlerInterface
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{
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private $reverseContainer;
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private array $processedNonces = [];
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public function __construct(ReverseContainer $reverseContainer)
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{
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$this->reverseContainer = $reverseContainer;
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}
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public function __invoke(EarlyExpirationMessage $message)
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{
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$item = $message->getItem();
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$metadata = $item->getMetadata();
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$expiry = $metadata[CacheItem::METADATA_EXPIRY] ?? 0;
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$ctime = $metadata[CacheItem::METADATA_CTIME] ?? 0;
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if ($expiry && $ctime) {
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// skip duplicate or expired messages
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$processingNonce = [$expiry, $ctime];
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$pool = $message->getPool();
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$key = $item->getKey();
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if (($this->processedNonces[$pool][$key] ?? null) === $processingNonce) {
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return;
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}
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if (microtime(true) >= $expiry) {
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return;
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}
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$this->processedNonces[$pool] = [$key => $processingNonce] + ($this->processedNonces[$pool] ?? []);
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if (\count($this->processedNonces[$pool]) > 100) {
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array_pop($this->processedNonces[$pool]);
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}
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}
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static $setMetadata;
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$setMetadata ?? $setMetadata = \Closure::bind(
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function (CacheItem $item, float $startTime) {
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if ($item->expiry > $endTime = microtime(true)) {
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$item->newMetadata[CacheItem::METADATA_EXPIRY] = $item->expiry;
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$item->newMetadata[CacheItem::METADATA_CTIME] = (int) ceil(1000 * ($endTime - $startTime));
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}
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},
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null,
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CacheItem::class
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);
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$startTime = microtime(true);
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$pool = $message->findPool($this->reverseContainer);
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$callback = $message->findCallback($this->reverseContainer);
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$value = $callback($item);
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$setMetadata($item, $startTime);
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$pool->save($item->set($value));
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}
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}
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