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 #include <unistd.h> 22 #include "window_manager_hilog.h" 23 24 namespace OHOS::Rosen { 25 26 void StartTraceForSyncTask(const std::string& name); 27 void FinishTraceForSyncTask(); 28 29 class TaskScheduler { 30 public: 31 explicit TaskScheduler(const std::string& threadName); 32 ~TaskScheduler() = default; 33 34 std::shared_ptr<AppExecFwk::EventHandler> GetEventHandler(); 35 36 using Task = std::function<void()>; 37 void PostAsyncTask(Task&& task, const std::string& name, int64_t delayTime = 0); 38 void PostTask(Task&& task, const std::string& name, int64_t delayTime = 0); 39 void RemoveTask(const std::string& name); 40 void PostVoidSyncTask(Task&& task, const std::string& name = "ssmTask"); 41 template<typename SyncTask, typename Return = std::invoke_result_t<SyncTask>> 42 Return PostSyncTask(SyncTask&& task, const std::string& name = "ssmTask") 43 { 44 Return ret; 45 if (handler_->GetEventRunner()->IsCurrentRunnerThread()) { 46 StartTraceForSyncTask(name); 47 ret = task(); 48 FinishTraceForSyncTask(); 49 return ret; 50 } 51 auto syncTask = [this, &ret, &task, &name] { 52 StartTraceForSyncTask(name); 53 ret = task(); 54 FinishTraceForSyncTask(); 55 ExecuteExportTask(); 56 }; 57 AppExecFwk::EventQueue::Priority priority = AppExecFwk::EventQueue::Priority::IMMEDIATE; 58 static pid_t pid = getpid(); 59 if (pid == gettid()) { 60 priority = AppExecFwk::EventQueue::Priority::VIP; 61 } 62 bool result = handler_->PostSyncTask(std::move(syncTask), "wms:" + name, priority); 63 if (!result) { 64 TLOGE(WmsLogTag::DEFAULT, "post task failed"); 65 } 66 return ret; 67 } 68 69 void SetExportHandler(const std::shared_ptr<AppExecFwk::EventHandler>& handler); 70 /* 71 * Add export task, which will be executed after a task OS_SceneSession, 72 * same name means same task, will be only executed once. 73 */ 74 void AddExportTask(std::string taskName, Task&& task); 75 76 private: 77 void ExecuteExportTask(); 78 std::unordered_map<std::string, Task> exportFuncMap_; // ONLY Accessed in OS_SceneSession 79 std::shared_ptr<AppExecFwk::EventHandler> handler_; 80 std::shared_ptr<AppExecFwk::EventHandler> exportHandler_; 81 }; 82 } // namespace OHOS::Rosen 83 #endif // OHOS_ROSEN_WINDOW_SCENE_TASK_SCHEDULER_H 84