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 FFRT_SEXECUTE_UNIT_HPP 17 #define FFRT_SEXECUTE_UNIT_HPP 18 19 #include "execute_unit.h" 20 #include "util/ffrt_facade.h" 21 22 namespace ffrt { 23 class SExecuteUnit : public ExecuteUnit { 24 public: Instance()25 static SExecuteUnit& Instance() 26 { 27 static SExecuteUnit ins; 28 return ins; 29 } 30 WorkerInit()31 void WorkerInit() override {} 32 WorkerPrepare(CPUWorker * thread)33 void WorkerPrepare(CPUWorker* thread) override 34 { 35 WorkerJoinTg(thread->GetQos(), thread->Id()); 36 } 37 38 WorkerAction WorkerIdleAction(CPUWorker* thread) override; 39 40 void WakeupWorkers(const QoS& qos) override; 41 IntoSleep(const QoS & qos)42 void IntoSleep(const QoS& qos) override 43 { 44 CPUWorkerGroup& group = workerGroup[qos]; 45 std::lock_guard lg(group.lock); 46 group.sleepingNum++; 47 group.executingNum--; 48 } 49 50 /* strategy options for handling task notify events */ 51 static void HandleTaskNotifyDefault(SExecuteUnit* manager, const QoS& qos, TaskNotifyType notifyType); 52 static void HandleTaskNotifyConservative(SExecuteUnit* manager, const QoS& qos, TaskNotifyType notifyType); 53 static void HandleTaskNotifyUltraConservative(SExecuteUnit* manager, const QoS& qos, TaskNotifyType notifyType); 54 private: 55 SExecuteUnit(); 56 ~SExecuteUnit() override; 57 PokeAdd(const QoS & qos)58 void PokeAdd(const QoS& qos) override 59 { 60 handleTaskNotify(this, qos, TaskNotifyType::TASK_ADDED); 61 } PokePick(const QoS & qos)62 void PokePick(const QoS& qos) override 63 { 64 handleTaskNotify(this, qos, TaskNotifyType::TASK_PICKED); 65 } PokeLocal(const QoS & qos)66 void PokeLocal(const QoS& qos) override 67 { 68 if (!FFRTFacade::GetSchedInstance()->GetScheduler(qos).IsStealerActive()) { 69 handleTaskNotify(this, qos, TaskNotifyType::TASK_LOCAL); 70 } 71 } PokeEscape(const QoS & qos,bool isPollWait)72 void PokeEscape(const QoS& qos, bool isPollWait) override 73 { 74 handleTaskNotify(this, qos, TaskNotifyType::TASK_ESCAPED); 75 } 76 PokeAddRtq(const QoS & qos,bool isRisingEdge)77 void PokeAddRtq(const QoS &qos, bool isRisingEdge) override 78 { 79 (void)isRisingEdge; // deprecated 80 handleTaskNotify(this, qos, TaskNotifyType::TASK_ADDED); 81 } 82 83 void PokeImpl(const QoS& qos, uint32_t taskCount, TaskNotifyType notifyType); 84 void ExecuteEscape(int qos) override; 85 86 std::function<void (SExecuteUnit*, const QoS&, TaskNotifyType)> handleTaskNotify { nullptr }; 87 }; 88 } // namespace ffrt 89 #endif 90