mirror of https://github.com/friendica/friendica
46 lines
1001 B
PHP
46 lines
1001 B
PHP
<?php
|
|
|
|
namespace Friendica\Core\Cache;
|
|
|
|
use Friendica\Core\Cache;
|
|
|
|
/**
|
|
* Trait TraitCompareSetDelete
|
|
*
|
|
* This Trait is to compensate non native "exclusive" sets/deletes in caches
|
|
*
|
|
* @package Friendica\Core\Cache
|
|
*/
|
|
trait TraitCompareDelete
|
|
{
|
|
abstract public function get($key);
|
|
|
|
abstract public function set($key, $value, $ttl = Cache::FIVE_MINUTES);
|
|
|
|
abstract public function delete($key);
|
|
|
|
abstract public function add($key, $value, $ttl = Cache::FIVE_MINUTES);
|
|
|
|
/**
|
|
* NonNative - Compares if the old value is set and removes it
|
|
*
|
|
* @param string $key The cache key
|
|
* @param mixed $value The old value we know and want to delete
|
|
* @return bool
|
|
*/
|
|
public function compareDelete($key, $value) {
|
|
if ($this->add($key . "_lock", true)) {
|
|
if ($this->get($key) === $value) {
|
|
$this->delete($key);
|
|
$this->delete($key . "_lock");
|
|
return true;
|
|
} else {
|
|
$this->delete($key . "_lock");
|
|
return false;
|
|
}
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
}
|