1 /* 2 * Copyright (c) 2021-2022 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 /* This files contains process dump hrader. */ 17 18 #ifndef DFX_PROCESSDUMP_H 19 #define DFX_PROCESSDUMP_H 20 21 #include <cinttypes> 22 #include <condition_variable> 23 #include <memory> 24 #include <mutex> 25 #include <string> 26 #include <thread> 27 #include "cppcrash_reporter.h" 28 #include "dfx_dump_request.h" 29 #include "dfx_process.h" 30 #include "nocopyable.h" 31 32 namespace OHOS { 33 namespace HiviewDFX { 34 class ProcessDumper final { 35 public: 36 static ProcessDumper &GetInstance(); 37 ~ProcessDumper() = default; 38 39 void Dump(); 40 void WriteDumpRes(int32_t res); 41 int32_t GetTargetPid(); 42 int32_t GetTargetNsPid(); 43 private: 44 static int WriteDumpBuf(int fd, const char* buf, const int len); 45 int DumpProcessWithSignalContext(std::shared_ptr<ProcessDumpRequest> request); 46 int InitPrintThread(bool fromSignalHandler, std::shared_ptr<ProcessDumpRequest> request); 47 void PrintDumpProcessWithSignalContextHeader(std::shared_ptr<ProcessDumpRequest> request); 48 void CreateVmProcessIfNeed(std::shared_ptr<ProcessDumpRequest> request, bool enableNs); 49 bool InitProcessNsInfo(std::shared_ptr<ProcessDumpRequest> request, bool isCrash); 50 int InitProcessInfo(std::shared_ptr<ProcessDumpRequest> request, bool isCrash, bool enableNs); 51 52 ProcessDumper() = default; 53 DISALLOW_COPY_AND_MOVE(ProcessDumper); 54 55 std::shared_ptr<DfxProcess> vmProcess_ = nullptr; 56 std::shared_ptr<DfxProcess> targetProcess_ = nullptr; 57 std::shared_ptr<CppCrashReporter> reporter_ = nullptr; 58 int32_t resFd_ = -1; 59 int32_t resDump_ = 0; 60 int32_t targetPid_ = -1; 61 int32_t targetNsPid_ = -1; 62 int32_t targetVmPid_ = -1; 63 int32_t targetVmNsPid_ = -1; 64 }; 65 } // namespace HiviewDFX 66 } // namespace OHOS 67 68 #endif // DFX_PROCESSDUMP_H 69