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 16 #ifndef OHOS_ROSEN_WINDOW_SCENE_TASK_SCHEDULER_H 17 #define OHOS_ROSEN_WINDOW_SCENE_TASK_SCHEDULER_H 18 19 #include <event_handler.h> 20 21 namespace OHOS::Rosen { 22 23 void StartTraceForSyncTask(std::string name); 24 void FinishTraceForSyncTask(); 25 26 class TaskScheduler { 27 public: 28 explicit TaskScheduler(const std::string& threadName); 29 ~TaskScheduler() = default; 30 31 std::shared_ptr<AppExecFwk::EventHandler> GetEventHandler(); 32 using Task = std::function<void()>; 33 void PostAsyncTask(Task&& task, const std::string& name = "ssmTask", int64_t delayTime = 0); 34 void PostVoidSyncTask(Task&& task, const std::string& name = "ssmTask"); 35 void PostTask(Task&& task, const std::string& name, int64_t delayTime = 0); 36 void RemoveTask(const std::string& name); 37 template<typename SyncTask, typename Return = std::invoke_result_t<SyncTask>> 38 Return PostSyncTask(SyncTask&& task, const std::string& name = "ssmTask") 39 { 40 Return ret; 41 if (!handler_ || handler_->GetEventRunner()->IsCurrentRunnerThread()) { 42 StartTraceForSyncTask(name); 43 ret = task(); 44 FinishTraceForSyncTask(); 45 return ret; 46 } 47 auto syncTask = [&ret, &task, name]() { 48 StartTraceForSyncTask(name); 49 ret = task(); 50 FinishTraceForSyncTask(); 51 }; 52 handler_->PostSyncTask(std::move(syncTask), "wms:" + name, AppExecFwk::EventQueue::Priority::IMMEDIATE); 53 return ret; 54 } 55 56 private: 57 std::shared_ptr<AppExecFwk::EventHandler> handler_; 58 }; 59 } // namespace OHOS::Rosen 60 #endif // OHOS_ROSEN_WINDOW_SCENE_TASK_SCHEDULER_H 61