1 /* 2 * Copyright (c) 2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 #include "util/ffrt_facade.h" 16 #include "dfx/log/ffrt_log_api.h" 17 #include "internal_inc/osal.h" 18 19 namespace { 20 constexpr int PROCESS_NAME_BUFFER_LENGTH = 1024; 21 char g_processName[PROCESS_NAME_BUFFER_LENGTH] {}; 22 std::atomic<bool> g_exitFlag { false }; 23 std::shared_mutex g_exitMtx; 24 std::once_flag g_processNameInitFlag; 25 } 26 27 namespace ffrt { GetExitFlag()28bool GetExitFlag() 29 { 30 return g_exitFlag.load(); 31 } 32 GetExitMtx()33std::shared_mutex& GetExitMtx() 34 { 35 return g_exitMtx; 36 } 37 GetCurrentProcessName()38const char* GetCurrentProcessName() 39 { 40 std::call_once(g_processNameInitFlag, []() { 41 GetProcessName(g_processName, PROCESS_NAME_BUFFER_LENGTH); 42 if (strlen(g_processName) == 0) { 43 FFRT_LOGW("Get process name failed"); 44 } 45 }); 46 return g_processName; 47 } 48 49 class ProcessExitManager { 50 public: Instance()51 static ProcessExitManager& Instance() 52 { 53 static ProcessExitManager instance; 54 return instance; 55 } 56 57 ProcessExitManager(const ProcessExitManager&) = delete; 58 ProcessExitManager& operator=(const ProcessExitManager&) = delete; 59 60 private: ProcessExitManager()61 ProcessExitManager() {} 62 ~ProcessExitManager()63 ~ProcessExitManager() 64 { 65 FFRT_LOGW("ProcessExitManager destruction enter"); 66 std::unique_lock lock(g_exitMtx); 67 g_exitFlag.store(true); 68 } 69 }; 70 FFRTFacade()71FFRTFacade::FFRTFacade() 72 { 73 DependenceManager::Instance(); 74 ProcessExitManager::Instance(); 75 InitWhiteListFlag(); 76 } 77 } // namespace FFRT