1/*
2 * Copyright (c) Huawei Technologies Co., Ltd. 2021. All rights reserved.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15#ifndef OHOS_PROFILER_ABSTRACT_SEMAPHORE_H
16#define OHOS_PROFILER_ABSTRACT_SEMAPHORE_H
17
18#include <memory>
19#include <string>
20
21class ISemaphore {
22public:
23    virtual ~ISemaphore() {}
24    virtual bool Wait() = 0;
25    virtual bool TryWait() = 0;
26    bool TimedWait(int seconds)
27    {
28        return TimedWait(seconds, 0);
29    }
30    virtual bool TimedWait(int seconds, int nanoSeconds) = 0;
31    virtual bool Post() = 0;
32    virtual unsigned int Value() const = 0;
33};
34using SemaphorePtr = std::shared_ptr<ISemaphore>;
35
36enum SemaphoreFactoryType : int { STD_SEMAPHORE_FACTORY, POSIX_SEMAPHORE_FACTORY, PTHREAD_SEMAPHORE_FACTORY };
37
38class ISemaphoreFactory {
39public:
40    virtual SemaphorePtr Create(unsigned int value) = 0;
41};
42
43ISemaphoreFactory& GetSemaphoreFactory(SemaphoreFactoryType type = STD_SEMAPHORE_FACTORY);
44
45#endif // OHOS_PROFILER_ABSTRACT_SEMAPHORE_H