1 /* 2 * Copyright (C) 2017 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 #define LOG_TAG "HalDeathHandler" 18 //#define LOG_NDEBUG 0 19 20 #include <utils/Log.h> 21 22 #include <media/audiohal/hidl/HalDeathHandler.h> 23 24 namespace android { 25 26 ANDROID_SINGLETON_STATIC_INSTANCE(HalDeathHandler); 27 28 // static 29 sp<HalDeathHandler> HalDeathHandler::getInstance() { 30 return &Singleton<HalDeathHandler>::getInstance(); 31 } 32 33 HalDeathHandler::HalDeathHandler() : mSelf(this) { 34 } 35 36 HalDeathHandler::~HalDeathHandler() { 37 } 38 39 void HalDeathHandler::registerAtExitHandler(void* cookie, AtExitHandler handler) { 40 std::lock_guard<std::mutex> guard(mHandlersLock); 41 mHandlers.insert({cookie, handler}); 42 } 43 44 void HalDeathHandler::unregisterAtExitHandler(void* cookie) { 45 std::lock_guard<std::mutex> guard(mHandlersLock); 46 mHandlers.erase(cookie); 47 } 48 49 void HalDeathHandler::serviceDied(uint64_t /*cookie*/, const wp<IBase>& /*who*/) { 50 // No matter which of the service objects has died, 51 // we need to run all the registered handlers and exit. 52 std::lock_guard<std::mutex> guard(mHandlersLock); 53 for (const auto& handler : mHandlers) { 54 handler.second(); 55 } 56 ALOGE("HAL server crashed, audio server is restarting"); 57 exit(1); 58 } 59 60 } // namespace android 61
