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 16 #ifndef PANDA_RUNTIME_TOOLING_THREAD_SAMPLING_INFO_H 17 #define PANDA_RUNTIME_TOOLING_THREAD_SAMPLING_INFO_H 18 19 #include <csetjmp> 20 #include "libpandabase/macros.h" 21 22 namespace ark::tooling::sampler { 23 24 class ThreadSamplingInfo { 25 public: 26 ThreadSamplingInfo() = default; 27 ~ThreadSamplingInfo() = default; 28 29 NO_COPY_SEMANTIC(ThreadSamplingInfo); 30 NO_MOVE_SEMANTIC(ThreadSamplingInfo); 31 IsThreadSampling()32 bool IsThreadSampling() const 33 { 34 return isThreadSampling_; 35 } 36 SetThreadSampling(bool threadSampling)37 void SetThreadSampling(bool threadSampling) 38 { 39 isThreadSampling_ = threadSampling; 40 } 41 GetSigSegvJmpEnv()42 jmp_buf &GetSigSegvJmpEnv() 43 { 44 return sigsegvJmpEnv_; 45 } 46 47 private: 48 bool isThreadSampling_ {false}; 49 50 // Environment that saved by setjmp in SIGPROF handler in Sampler 51 // Used for longjmp in case of SIGSEGV during thread sampling 52 jmp_buf sigsegvJmpEnv_ {}; 53 }; 54 55 } // namespace ark::tooling::sampler 56 57 #endif // PANDA_RUNTIME_TOOLING_THREAD_SAMPLING_INFO_H 58