| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| #ifndef CRASHHANDLER_H |
| #define CRASHHANDLER_H |
| |
| #include <signal.h> |
| #include <string> |
| #include <sys/ucontext.h> |
| |
| namespace crash_handler { |
| |
| class CrashHandlerInfo { |
| public: |
| CrashHandlerInfo(std::string fileName); |
| ~CrashHandlerInfo(); |
| |
| void parpareFds(); |
| bool initializeCrashHandler(); |
| bool handleSignal(int signum, siginfo_t* siginfo, void* ucontext); |
| bool printIP(void* addr); |
| bool is_crashed(); |
| struct SignalInfo { |
| int signum; |
| const char* signame; |
| }; |
| |
| private: |
| void printContext(); |
| void printMaps(); |
| void printRegContent(void* addr, const char* name); |
| void printUnwind(); |
| bool ensureDirectory(const char* base); |
| void printf(const char* fmt, ...); |
| void saveFileContent(); |
| |
| /* static members */ |
| static const size_t BUF_SIZE = 1024; |
| static const int maxUnwindCount = 32; |
| |
| /* members */ |
| struct sigaction m_sigaction[16]; |
| |
| // File descriptior to store crash dump message |
| int m_dumpFileFd; |
| |
| // File descriptior for /prco/self/maps |
| int m_mapsFileFd; |
| int m_unwinded; |
| |
| std::string m_dumpFileName; |
| std::string m_fileContent; |
| mcontext_t m_mcontext; |
| volatile bool m_crash_occurs; |
| }; |
| } |
| #endif /* CRASHHANDLER_H */ |