1 /** 2 * Copyright (c) 2021-2024 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 #ifndef PANDA_RUNTIME_SINGLE_THREAD_MANAGER_H 16 #define PANDA_RUNTIME_SINGLE_THREAD_MANAGER_H 17 18 #include "runtime/thread_manager.h" 19 20 namespace ark { 21 class SingleThreadManager : public ThreadManager { 22 public: 23 NO_COPY_SEMANTIC(SingleThreadManager); 24 NO_MOVE_SEMANTIC(SingleThreadManager); 25 26 SingleThreadManager() = default; 27 28 ~SingleThreadManager() override = default; 29 WaitForDeregistration()30 void WaitForDeregistration() override {} 31 SuspendAllThreads()32 void SuspendAllThreads() override 33 { 34 ManagedThread *mainThread = GetMainThread(); 35 if (Thread::GetCurrent() != mainThread) { 36 mainThread->SuspendImpl(true); 37 } 38 } 39 ResumeAllThreads()40 void ResumeAllThreads() override 41 { 42 ManagedThread *mainThread = GetMainThread(); 43 if (Thread::GetCurrent() != mainThread) { 44 mainThread->ResumeImpl(true); 45 } 46 } 47 IsRunningThreadExist()48 bool IsRunningThreadExist() override 49 { 50 ManagedThread *mainThread = GetMainThread(); 51 if (Thread::GetCurrent() != mainThread) { 52 if (mainThread->GetStatus() == ThreadStatus::RUNNING) { 53 return true; 54 } 55 } 56 return false; 57 } 58 59 protected: EnumerateThreadsImpl(const Callback & cb,unsigned int incMask,unsigned int xorMask)60 bool EnumerateThreadsImpl(const Callback &cb, [[maybe_unused]] unsigned int incMask, 61 [[maybe_unused]] unsigned int xorMask) const override 62 { 63 return cb(GetMainThread()); 64 } 65 }; 66 } // namespace ark 67 68 #endif // PANDA_RUNTIME_SINGLE_THREAD_MANAGER_H 69