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Key.php
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Key.php
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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <[email protected]>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Lock;
/**
* Key is a container for the state of the locks in stores.
*
* @author Jérémy Derussé <[email protected]>
*/
final class Key
{
private $resource;
private $expiringTime;
private $state = [];
public function __construct(string $resource)
{
$this->resource = $resource;
}
public function __toString(): string
{
return $this->resource;
}
public function hasState(string $stateKey): bool
{
return isset($this->state[$stateKey]);
}
public function setState(string $stateKey, $state): void
{
$this->state[$stateKey] = $state;
}
public function removeState(string $stateKey): void
{
unset($this->state[$stateKey]);
}
public function getState(string $stateKey)
{
return $this->state[$stateKey];
}
public function resetLifetime()
{
$this->expiringTime = null;
}
/**
* @param float $ttl the expiration delay of locks in seconds
*/
public function reduceLifetime(float $ttl)
{
$newTime = microtime(true) + $ttl;
if (null === $this->expiringTime || $this->expiringTime > $newTime) {
$this->expiringTime = $newTime;
}
}
/**
* Returns the remaining lifetime.
*
* @return float|null Remaining lifetime in seconds. Null when the key won't expire.
*/
public function getRemainingLifetime(): ?float
{
return null === $this->expiringTime ? null : $this->expiringTime - microtime(true);
}
public function isExpired(): bool
{
return null !== $this->expiringTime && $this->expiringTime <= microtime(true);
}
}