1 /* 2 * Copyright (C) 2020 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "CloseHandle.h" 18 19 namespace android::hardware::automotive::audiocontrol::V2_0::implementation { 20 CloseHandle(Callback callback)21CloseHandle::CloseHandle(Callback callback) : mCallback(callback) {} 22 ~CloseHandle()23CloseHandle::~CloseHandle() { 24 close(); 25 } 26 close()27Return<void> CloseHandle::close() { 28 const auto wasClosed = mIsClosed.exchange(true); 29 if (wasClosed) return {}; 30 31 if (mCallback) mCallback(); 32 return {}; 33 } 34 35 } // namespace android::hardware::automotive::audiocontrol::V2_0::implementation 36