/* * Copyright (C) 2020 The Android Open Source Project * * 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. */ #include "CloseHandle.h" namespace android::hardware::automotive::audiocontrol::V2_0::implementation { CloseHandle::CloseHandle(Callback callback) : mCallback(callback) {} CloseHandle::~CloseHandle() { close(); } Return CloseHandle::close() { const auto wasClosed = mIsClosed.exchange(true); if (wasClosed) return {}; if (mCallback) mCallback(); return {}; } } // namespace android::hardware::automotive::audiocontrol::V2_0::implementation