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Log.cpp
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Log.cpp
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/*
This file is part of the DSP-Crowd project
https://www.dsp-crowd.com
Author(s):
- Johannes Natter, office@dsp-crowd.com
File created on 19.03.2021
Copyright (C) 2021, Johannes Natter
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
#include <iostream>
#include <chrono>
#include <time.h>
#include <stdarg.h>
#if CONFIG_PROC_HAVE_DRIVERS
#include <mutex>
#endif
#ifdef _WIN32
#include <windows.h>
#endif
using namespace std;
using namespace chrono;
typedef void (*FuncEntryLogCreate)(
const int severity,
const char *filename,
const char *function,
const int line,
const int16_t code,
const char *msg,
const size_t len);
static FuncEntryLogCreate pFctEntryLogCreate = NULL;
static system_clock::time_point tOld;
const string red("\033[0;31m");
const string yellow("\033[0;33m");
const string reset("\033[37m");
const size_t cLogEntryBufferSize = 1024;
static int levelLog = 2;
static mutex mtxPrint;
void levelLogSet(int lvl)
{
levelLog = lvl;
}
void entryLogCreateSet(FuncEntryLogCreate pFct)
{
pFctEntryLogCreate = pFct;
}
int16_t logEntryCreate(const int severity, const char *filename, const char *function, const int line, const int16_t code, const char *msg, ...)
{
#if CONFIG_PROC_HAVE_DRIVERS
lock_guard<mutex> lock(mtxPrint); // Guard not defined!
#endif
char *pBuf = new (nothrow) char[cLogEntryBufferSize];
if (!pBuf)
return code;
char *pStart = pBuf;
char *pEnd = pStart + cLogEntryBufferSize - 1;
*pStart = 0;
*pEnd = 0;
va_list args;
system_clock::time_point t = system_clock::now();
duration<long, nano> tDiff = t - tOld;
double tDiffSec = tDiff.count() / 10e9;
time_t tt_t = system_clock::to_time_t(t);
tm bt {};
char timeBuf[32];
tOld = t;
#ifdef _WIN32
::localtime_s(&bt, &tt_t);
#else
::localtime_r(&tt_t, &bt);
#endif
strftime(timeBuf, sizeof(timeBuf), "%d.%m.%y %H:%M:%S", &bt);
// "%03d"
pStart += snprintf(pStart, pEnd - pStart, "%s.000 +%3.3f %4d %3d %-24s ", timeBuf, tDiffSec, line, severity, function);
va_start(args, msg);
pStart += vsnprintf(pStart, pEnd - pStart, msg, args);
va_end(args);
// Creating log entry
if (severity <= levelLog)
{
#ifdef _WIN32
HANDLE hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
if (severity == 1)
{
SetConsoleTextAttribute(hConsole, 4);
cerr << pBuf << "\r\n" << flush;
}
else
if (severity == 2)
{
SetConsoleTextAttribute(hConsole, 6);
cerr << pBuf << "\r\n" << flush;
}
else
cout << pBuf << "\r\n" << flush;
SetConsoleTextAttribute(hConsole, 7);
#else
if (severity == 1)
cerr << red << pBuf << reset << "\r\n" << flush;
else
if (severity == 2)
cerr << yellow << pBuf << reset << "\r\n" << flush;
else
cout << pBuf << "\r\n" << flush;
#endif
}
if (pFctEntryLogCreate)
pFctEntryLogCreate(severity, filename, function, line, code, pBuf, pStart - pBuf);
delete[] pBuf;
return code;
}