Viewing file:  ContractsTrait.php (3.41 KB) -rw-r--r--
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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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