189 lines
7 KiB
C++
189 lines
7 KiB
C++
/* Copyright (c) 2019 - 2021 The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation, nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#include "LogBuffer.h"
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#ifdef USE_GLIB
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#include <execinfo.h>
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#endif
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#ifdef LOG_TAG
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#undef LOG_TAG
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#endif
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#define LOG_TAG "LocSvc_LogBuffer"
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namespace loc_util {
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LogBuffer* LogBuffer::mInstance;
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struct sigaction LogBuffer::mOriSigAction[NSIG];
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struct sigaction LogBuffer::mNewSigAction;
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mutex LogBuffer::sLock;
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LogBuffer* LogBuffer::getInstance() {
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if (mInstance == nullptr) {
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lock_guard<mutex> guard(sLock);
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if (mInstance == nullptr) {
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mInstance = new LogBuffer();
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}
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}
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return mInstance;
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}
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LogBuffer::LogBuffer(): mLogList(TOTAL_LOG_LEVELS),
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mConfigVec(TOTAL_LOG_LEVELS, ConfigsInLevel(TIME_DEPTH_THRESHOLD_MINIMAL_IN_SEC,
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MAXIMUM_NUM_IN_LIST, 0)) {
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loc_param_s_type log_buff_config_table[] =
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{
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{"E_LEVEL_TIME_DEPTH", &mConfigVec[0].mTimeDepthThres, NULL, 'n'},
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{"E_LEVEL_MAX_CAPACITY", &mConfigVec[0].mMaxNumThres, NULL, 'n'},
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{"W_LEVEL_TIME_DEPTH", &mConfigVec[1].mTimeDepthThres, NULL, 'n'},
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{"W_LEVEL_MAX_CAPACITY", &mConfigVec[1].mMaxNumThres, NULL, 'n'},
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{"I_LEVEL_TIME_DEPTH", &mConfigVec[2].mTimeDepthThres, NULL, 'n'},
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{"I_LEVEL_MAX_CAPACITY", &mConfigVec[2].mMaxNumThres, NULL, 'n'},
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{"D_LEVEL_TIME_DEPTH", &mConfigVec[3].mTimeDepthThres, NULL, 'n'},
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{"D_LEVEL_MAX_CAPACITY", &mConfigVec[3].mMaxNumThres, NULL, 'n'},
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{"V_LEVEL_TIME_DEPTH", &mConfigVec[4].mTimeDepthThres, NULL, 'n'},
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{"V_LEVEL_MAX_CAPACITY", &mConfigVec[4].mMaxNumThres, NULL, 'n'},
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};
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loc_read_conf(LOC_PATH_GPS_CONF_STR, log_buff_config_table,
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sizeof(log_buff_config_table)/sizeof(log_buff_config_table[0]));
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registerSignalHandler();
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}
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void LogBuffer::append(string& data, int level, uint64_t timestamp) {
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lock_guard<mutex> guard(mLock);
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pair<uint64_t, string> item(timestamp, data);
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mLogList.append(item, level);
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mConfigVec[level].mCurrentSize++;
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while ((timestamp - mLogList.front(level).first) > mConfigVec[level].mTimeDepthThres ||
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mConfigVec[level].mCurrentSize > mConfigVec[level].mMaxNumThres) {
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mLogList.pop(level);
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mConfigVec[level].mCurrentSize--;
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}
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}
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//Dump the log buffer of specific level, level = -1 to dump all the levels in log buffer.
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void LogBuffer::dump(std::function<void(stringstream&)> log, int level) {
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lock_guard<mutex> guard(mLock);
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list<pair<pair<uint64_t, string>, int>> li;
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if (-1 == level) {
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li = mLogList.dump();
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} else {
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li = mLogList.dump(level);
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}
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ALOGE("Begining of dump, buffer size: %d", (int)li.size());
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stringstream ln;
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ln << "dump log buffer, level[" << level << "]" << ", buffer size: " << li.size() << endl;
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log(ln);
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for_each (li.begin(), li.end(), [&, this](const pair<pair<uint64_t, string>, int> &item){
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stringstream line;
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line << "["<<item.first.first << "] ";
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line << "Level " << mLevelMap[item.second] << ": ";
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line << item.first.second << endl;
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if (log != nullptr) {
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log(line);
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}
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});
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ALOGE("End of dump");
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}
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void LogBuffer::dumpToAdbLogcat() {
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dump([](stringstream& line){
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ALOGE("%s", line.str().c_str());
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});
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}
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void LogBuffer::dumpToLogFile(string filePath) {
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ALOGE("Dump GPS log buffer to file: %s", filePath.c_str());
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fstream s;
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s.open(filePath, std::fstream::out | std::fstream::app);
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dump([&s](stringstream& line){
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s << line.str();
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});
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s.close();
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}
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void LogBuffer::flush() {
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mLogList.flush();
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}
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void LogBuffer::registerSignalHandler() {
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ALOGE("Singal handler registered");
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mNewSigAction.sa_sigaction = &LogBuffer::signalHandler;
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mNewSigAction.sa_flags = SA_SIGINFO | SA_RESTART;
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sigemptyset(&mNewSigAction.sa_mask);
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sigaction(SIGINT, &mNewSigAction, &mOriSigAction[SIGINT]);
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sigaction(SIGKILL, &mNewSigAction, &mOriSigAction[SIGKILL]);
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sigaction(SIGSEGV, &mNewSigAction, &mOriSigAction[SIGSEGV]);
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sigaction(SIGABRT, &mNewSigAction, &mOriSigAction[SIGABRT]);
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sigaction(SIGTRAP, &mNewSigAction, &mOriSigAction[SIGTRAP]);
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sigaction(SIGUSR1, &mNewSigAction, &mOriSigAction[SIGUSR1]);
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}
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void LogBuffer::signalHandler(const int code, siginfo_t *const si, void *const sc) {
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ALOGE("[Gnss Log buffer]Singal handler, signal ID: %d", code);
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#ifdef USE_GLIB
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int nptrs;
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void *buffer[100];
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char **strings;
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nptrs = backtrace(buffer, sizeof(buffer)/sizeof(*buffer));
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strings = backtrace_symbols(buffer, nptrs);
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if (strings != NULL) {
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timespec tv = {};
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clock_gettime(CLOCK_BOOTTIME, &tv);
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uint64_t elapsedTime = (uint64_t)tv.tv_sec + (uint64_t)tv.tv_nsec/1000000000;
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for (int i = 0; i < nptrs; i++) {
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string s(strings[i]);
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mInstance->append(s, 0, elapsedTime);
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}
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}
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#endif
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//Dump the log buffer to adb logcat
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mInstance->dumpToAdbLogcat();
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//Dump the log buffer to file
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time_t now = time(NULL);
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struct tm *curr_time = localtime(&now);
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char path[50];
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snprintf(path, 50, LOG_BUFFER_FILE_PATH "gpslog_%d%d%d-%d%d%d.log",
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(1900 + curr_time->tm_year), ( 1 + curr_time->tm_mon), curr_time->tm_mday,
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curr_time->tm_hour, curr_time->tm_min, curr_time->tm_sec);
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mInstance->dumpToLogFile(path);
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//Process won't be terminated if SIGUSR1 is recieved
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if (code != SIGUSR1) {
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mOriSigAction[code].sa_sigaction(code, si, sc);
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}
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}
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}
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