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- <?php
- /*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
- namespace Symfony\Component\Cache\Traits;
- use Psr\Log\LoggerInterface;
- use Symfony\Component\Cache\Adapter\AdapterInterface;
- use Symfony\Component\Cache\CacheItem;
- use Symfony\Component\Cache\Exception\InvalidArgumentException;
- use Symfony\Component\Cache\LockRegistry;
- use Symfony\Contracts\Cache\CacheInterface;
- use Symfony\Contracts\Cache\CacheTrait;
- use Symfony\Contracts\Cache\ItemInterface;
- /**
- * @author Nicolas Grekas <p@tchwork.com>
- *
- * @internal
- */
- trait ContractsTrait
- {
- use CacheTrait {
- doGet as private contractsGet;
- }
- private $callbackWrapper = [LockRegistry::class, 'compute'];
- private $computing = [];
- /**
- * Wraps the callback passed to ->get() in a callable.
- *
- * @return callable the previous callback wrapper
- */
- public function setCallbackWrapper(?callable $callbackWrapper): callable
- {
- $previousWrapper = $this->callbackWrapper;
- $this->callbackWrapper = $callbackWrapper ?? function (callable $callback, ItemInterface $item, bool &$save, CacheInterface $pool, \Closure $setMetadata, ?LoggerInterface $logger) {
- return $callback($item, $save);
- };
- return $previousWrapper;
- }
- private function doGet(AdapterInterface $pool, string $key, callable $callback, ?float $beta, array &$metadata = null)
- {
- if (0 > $beta = $beta ?? 1.0) {
- throw new InvalidArgumentException(sprintf('Argument "$beta" provided to "%s::get()" must be a positive number, %f given.', static::class, $beta));
- }
- static $setMetadata;
- $setMetadata ?? $setMetadata = \Closure::bind(
- static function (CacheItem $item, float $startTime, ?array &$metadata) {
- if ($item->expiry > $endTime = microtime(true)) {
- $item->newMetadata[CacheItem::METADATA_EXPIRY] = $metadata[CacheItem::METADATA_EXPIRY] = $item->expiry;
- $item->newMetadata[CacheItem::METADATA_CTIME] = $metadata[CacheItem::METADATA_CTIME] = (int) ceil(1000 * ($endTime - $startTime));
- } else {
- unset($metadata[CacheItem::METADATA_EXPIRY], $metadata[CacheItem::METADATA_CTIME]);
- }
- },
- null,
- CacheItem::class
- );
- return $this->contractsGet($pool, $key, function (CacheItem $item, bool &$save) use ($pool, $callback, $setMetadata, &$metadata, $key) {
- // don't wrap nor save recursive calls
- if (isset($this->computing[$key])) {
- $value = $callback($item, $save);
- $save = false;
- return $value;
- }
- $this->computing[$key] = $key;
- $startTime = microtime(true);
- try {
- $value = ($this->callbackWrapper)($callback, $item, $save, $pool, function (CacheItem $item) use ($setMetadata, $startTime, &$metadata) {
- $setMetadata($item, $startTime, $metadata);
- }, $this->logger ?? null);
- $setMetadata($item, $startTime, $metadata);
- return $value;
- } finally {
- unset($this->computing[$key]);
- }
- }, $beta, $metadata, $this->logger ?? null);
- }
- }
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