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59 lines
1.7 KiB
59 lines
1.7 KiB
/* |
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* Copyright (C) 2017 The Android Open Source Project |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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#ifndef ANDROID_HARDWARE_BROADCASTRADIO_V1_1_CALL_BARRIER |
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#define ANDROID_HARDWARE_BROADCASTRADIO_V1_1_CALL_BARRIER |
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#include <chrono> |
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#include <thread> |
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namespace android { |
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namespace hardware { |
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namespace broadcastradio { |
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namespace vts { |
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/** |
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* A barrier for thread synchronization, where one should wait for another to |
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* reach a specific point in execution. |
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*/ |
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class CallBarrier { |
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public: |
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/** |
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* Notify the other thread it may continue execution. |
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* |
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* This may be called before the other thread starts waiting on the barrier. |
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*/ |
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void call(); |
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/** |
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* Wait for the other thread to reach call() execution point. |
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* |
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* @param timeout a maximum time to wait. |
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* @returns {@code false} if timed out, {@code true} otherwise. |
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*/ |
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bool waitForCall(std::chrono::milliseconds timeout); |
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private: |
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bool mWasCalled = false; |
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std::mutex mMut; |
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std::condition_variable mCond; |
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}; |
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} // namespace vts |
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} // namespace broadcastradio |
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} // namespace hardware |
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} // namespace android |
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#endif // ANDROID_HARDWARE_BROADCASTRADIO_V1_1_CALL_BARRIER
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