1 /* 2 * Copyright (c) 2021 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 ECMASCRIPT_TASKPOOL_TASK_QUEUE_H 17 #define ECMASCRIPT_TASKPOOL_TASK_QUEUE_H 18 19 #include <algorithm> 20 #include <atomic> 21 #include <deque> 22 #include <map> 23 #include <chrono> 24 #include <memory> 25 #include <functional> 26 27 #include "ecmascript/taskpool/task.h" 28 #include "ecmascript/platform/mutex.h" 29 30 namespace panda::ecmascript { 31 using SteadyTimePoint = std::chrono::steady_clock::time_point; 32 class TaskQueue { 33 public: 34 TaskQueue() = default; 35 ~TaskQueue() = default; 36 37 NO_COPY_SEMANTIC(TaskQueue); 38 NO_MOVE_SEMANTIC(TaskQueue); 39 40 void PostTask(std::unique_ptr<Task> task); 41 void PostDelayedTask(std::unique_ptr<Task> task, uint64_t delayMilliseconds); 42 std::unique_ptr<Task> PopTask(); 43 44 void Terminate(); 45 void TerminateTask(int32_t id, TaskType type); 46 void ForEachTask(const std::function<void(Task*)> &f); 47 48 private: 49 void MoveExpiredTask(); 50 void WaitForTask(); 51 52 std::deque<std::unique_ptr<Task>> tasks_; 53 54 struct DelayedTaskCompare { operatorDelayedTaskCompare55 bool operator()(const SteadyTimePoint& left, const SteadyTimePoint& right) const 56 { 57 return (std::chrono::duration_cast<std::chrono::duration<double>>(right - left)).count() > 0; 58 } 59 }; 60 61 std::multimap<SteadyTimePoint, std::unique_ptr<Task>, DelayedTaskCompare> delayedTasks_; 62 63 std::atomic_bool terminate_ = false; 64 Mutex mtx_; 65 ConditionVariable cv_; 66 }; 67 } // namespace panda::ecmascript 68 #endif // ECMASCRIPT_TASKPOOL_TASK_QUEUE_H 69