Viewing file:  CacheStorage.php (1.31 KB) -rwxr-xr-x
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<?php
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
abstract class CacheStorage {
abstract public function store($key, $value);
abstract public function fetch($key);
abstract public function delete($key);
abstract public function lock($key);
abstract public function unlock($key);
abstract public function isLocked($key);
public function waitForLock($key) {
$tries = 10;
$cnt = 0;
do {
usleep(100);
$cnt ++;
} while ($cnt <= $tries && $this->isLocked($key));
if ($this->isLocked($key)) {
$this->unlock($key);
}
}
}
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