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 #define LOG_TAG "carwatchdogd" 18 19 #include "ServiceManager.h" 20 21 #include <binder/IPCThreadState.h> 22 #include <binder/ProcessState.h> 23 #include <log/log.h> 24 #include <utils/Looper.h> 25 26 using ::android::IPCThreadState; 27 using ::android::Looper; 28 using ::android::ProcessState; 29 using ::android::sp; 30 using ::android::automotive::watchdog::ServiceManager; 31 32 const size_t kMaxBinderThreadCount = 16; 33 main(int,char **)34int main(int /*argc*/, char** /*argv*/) { 35 // Set up the binder 36 sp<ProcessState> ps(ProcessState::self()); 37 ps->setThreadPoolMaxThreadCount(kMaxBinderThreadCount); 38 ps->startThreadPool(); 39 ps->giveThreadPoolName(); 40 IPCThreadState::self()->disableBackgroundScheduling(true); 41 42 sp<Looper> mainLooper(Looper::prepare(/*opts=*/0)); 43 44 auto result = ServiceManager::getInstance()->startServices(mainLooper); 45 if (!result.ok()) { 46 ALOGE("Failed to start services: %s", result.error().message().c_str()); 47 ServiceManager::terminate(); 48 exit(result.error().code()); 49 } 50 51 // Loop forever -- the health check runs on this thread in a handler, and the binder calls 52 // remain responsive in their pool of threads. 53 while (true) { 54 mainLooper->pollAll(/*timeoutMillis=*/-1); 55 } 56 ALOGW("Car watchdog server escaped from its loop."); 57 ServiceManager::terminate(); 58 59 return 0; 60 } 61