<?php

/**
 * Copyright 2017 Google Inc.
 *
 * Licensed 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.
 */

namespace Google\Cloud\Core\Testing\Lock;

require_once __DIR__ . '/MockGlobals.php';

/**
 * MockValues holds mock values used for testing the locking implementation.
 *
 * WARNING: this class requires MockGlobals.php, which replaces some existing functions with test
 * implementations.
 *
 * @experimental
 * @internal
 */
class MockValues
{
    public static $flockReturnValue;
    public static $fopenReturnValue;
    public static $sem_acquireReturnValue;
    public static $sem_releaseReturnValue;
    public static $sem_getReturnValue;

    /**
     * Initialize MockValues
     *
     * @experimental
     * @internal
     */
    public static function initialize()
    {
        self::$flockReturnValue = true;
        self::$fopenReturnValue = function ($file, $mode) {
            return \fopen($file, $mode);
        };
        self::$sem_acquireReturnValue = true;
        self::$sem_releaseReturnValue = true;
        self::$sem_getReturnValue = function ($key) {
            return \sem_get($key);
        };
    }
}