/* Copyright (c) 2019 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.
*
*/
#ifndef LOG_BUFFER_H
#define LOG_BUFFER_H
#include "SkipList.h"
#include "log_util.h"
#include <loc_cfg.h>
#include <loc_pla.h>
#include <string>
#include <sstream>
#include <ostream>
#include <fstream>
#include <time.h>
#include <mutex>
#include <signal.h>
#include <thread>
#include <functional>
//default error level time depth threshold,
#define TIME_DEPTH_THRESHOLD_MINIMAL_IN_SEC 60
//default maximum log buffer size
#define MAXIMUM_NUM_IN_LIST 50
//file path of dumped log buffer
#define LOG_BUFFER_FILE_PATH "/data/vendor/location/"
namespace loc_util {
class ConfigsInLevel{
public:
uint32_t mTimeDepthThres;
uint32_t mMaxNumThres;
int mCurrentSize;
ConfigsInLevel(uint32_t time, int num, int size):
mTimeDepthThres(time), mMaxNumThres(num), mCurrentSize(size) {}
};
class LogBuffer {
private:
static LogBuffer* mInstance;
static struct sigaction mOriSigAction[NSIG];
static struct sigaction mNewSigAction;
static mutex sLock;
SkipList<pair<uint64_t, string>> mLogList;
vector<ConfigsInLevel> mConfigVec;
mutex mLock;
const vector<string> mLevelMap {"E", "W", "I", "D", "V"};
public:
static LogBuffer* getInstance();
void append(string& data, int level, uint64_t timestamp);
void dump(std::function<void(stringstream&)> log, int level = -1);
void dumpToAdbLogcat();
void dumpToLogFile(string filePath);
void flush();
private:
LogBuffer();
void registerSignalHandler();
static void signalHandler(const int code, siginfo_t *const si, void *const sc);
};
}
#endif
