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 _DELAYED_WORKER_H_ 17 #define _DELAYED_WORKER_H_ 18 19 #include <map> 20 #include <functional> 21 #include "cpp/sleep.h" 22 #include "sched/execute_ctx.h" 23 namespace ffrt { 24 using time_point_t = std::chrono::steady_clock::time_point; 25 26 struct DelayedWork { 27 WaitEntry* we; 28 const std::function<void(WaitEntry*)>* cb; 29 }; 30 31 class DelayedWorker { 32 std::multimap<time_point_t, DelayedWork> map; 33 std::mutex lock; 34 std::atomic_int futex; 35 bool exited = false; 36 37 void HandleWork(struct timespec** p); 38 39 public: 40 DelayedWorker(DelayedWorker const&) = delete; 41 void operator=(DelayedWorker const&) = delete; 42 43 DelayedWorker(); 44 45 ~DelayedWorker(); 46 47 bool dispatch(const time_point_t& to, WaitEntry* we, const std::function<void(WaitEntry*)>& wakeup); 48 }; 49 } // namespace ffrt 50 #endif 51