AppleWin/source/Log.cpp

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/*
AppleWin : An Apple //e emulator for Windows
Copyright (C) 1994-1996, Michael O'Brien
Copyright (C) 1999-2001, Oliver Schmidt
Copyright (C) 2002-2005, Tom Charlesworth
Copyright (C) 2006-2007, Tom Charlesworth, Michael Pohoreski, Nick Westgate
AppleWin is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
AppleWin is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with AppleWin; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* Description: Log
*
* Author: Nick Westgate
*/
#include "StdAfx.h"
#include "Log.h"
#include <time.h>
FILE* g_fh = NULL;
#ifdef _MSC_VER
#define LOG_FILENAME "AppleWin.log"
#else
// save to /tmp as otherwise it creates a file in the current folder which can be a bit everywhere
// especially if the program is installed to /usr
#define LOG_FILENAME "/tmp/AppleWin.log"
#endif
//---------------------------------------------------------------------------
inline std::string GetTimeStamp()
{
time_t ltime;
time(&ltime);
#ifdef _MSC_VER
char ct[32];
ctime_s(ct, sizeof(ct), &ltime);
#else
char ctbuf[32];
const char* ct = ctime_r(&ltime, ctbuf);
#endif
return std::string(ct, 24);
}
void LogInit(void)
{
if (g_fh)
return;
g_fh = fopen(LOG_FILENAME, "a+t"); // Open log file (append & text mode)
if (!g_fh)
{
LogOutput("Failed to open logfile '%s'\n", LOG_FILENAME);
return;
}
setvbuf(g_fh, NULL, _IONBF, 0); // No buffering (so implicit fflush after every fprintf)
fprintf(g_fh, "*** Logging started: %s\n", GetTimeStamp().c_str());
}
void LogDone(void)
{
if (!g_fh)
return;
fprintf(g_fh,"*** Logging ended\n\n");
fclose(g_fh);
g_fh = NULL;
}
//---------------------------------------------------------------------------
void LogOutput(const char* format, ...)
{
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va_list args;
va_start(args, format);
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OutputDebugString(StrFormatV(format, args).c_str());
va_end(args);
}
//---------------------------------------------------------------------------
void LogFileOutput(const char* format, ...)
{
if (!g_fh)
return;
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va_list args;
va_start(args, format);
vfprintf(g_fh, format, args);
va_end(args);
}