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