1 /* Copyright (c) 2019 The Linux Foundation. All rights reserved. 2 * 3 * Redistribution and use in source and binary forms, with or without 4 * modification, are permitted provided that the following conditions are 5 * met: 6 * * Redistributions of source code must retain the above copyright 7 * notice, this list of conditions and the following disclaimer. 8 * * Redistributions in binary form must reproduce the above 9 * copyright notice, this list of conditions and the following 10 * disclaimer in the documentation and/or other materials provided 11 * with the distribution. 12 * * Neither the name of The Linux Foundation, nor the names of its 13 * contributors may be used to endorse or promote products derived 14 * from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 23 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 25 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 26 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 */ 29 30 #ifndef LOG_BUFFER_H 31 #define LOG_BUFFER_H 32 33 #include "SkipList.h" 34 #include "log_util.h" 35 #include <loc_cfg.h> 36 #include <loc_pla.h> 37 #include <string> 38 #include <sstream> 39 #include <ostream> 40 #include <fstream> 41 #include <time.h> 42 #include <mutex> 43 #include <signal.h> 44 #include <thread> 45 #include <functional> 46 47 //default error level time depth threshold, 48 #define TIME_DEPTH_THRESHOLD_MINIMAL_IN_SEC 60 49 //default maximum log buffer size 50 #define MAXIMUM_NUM_IN_LIST 50 51 //file path of dumped log buffer 52 #define LOG_BUFFER_FILE_PATH "/data/vendor/location/" 53 54 namespace loc_util { 55 56 class ConfigsInLevel{ 57 public: 58 uint32_t mTimeDepthThres; 59 uint32_t mMaxNumThres; 60 int mCurrentSize; 61 ConfigsInLevel(uint32_t time,int num,int size)62 ConfigsInLevel(uint32_t time, int num, int size): 63 mTimeDepthThres(time), mMaxNumThres(num), mCurrentSize(size) {} 64 }; 65 66 class LogBuffer { 67 private: 68 static LogBuffer* mInstance; 69 static struct sigaction mOriSigAction[NSIG]; 70 static struct sigaction mNewSigAction; 71 static mutex sLock; 72 73 SkipList<pair<uint64_t, string>> mLogList; 74 vector<ConfigsInLevel> mConfigVec; 75 mutex mLock; 76 77 const vector<string> mLevelMap {"E", "W", "I", "D", "V"}; 78 79 public: 80 static LogBuffer* getInstance(); 81 void append(string& data, int level, uint64_t timestamp); 82 void dump(std::function<void(stringstream&)> log, int level = -1); 83 void dumpToAdbLogcat(); 84 void dumpToLogFile(string filePath); 85 void flush(); 86 private: 87 LogBuffer(); 88 void registerSignalHandler(); 89 static void signalHandler(const int code, siginfo_t *const si, void *const sc); 90 91 }; 92 93 } 94 95 #endif 96