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// -----------------------------------------------------------------------------
// This file is part of Broken Sword 2.5
// Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsd�rfer
//
// Broken Sword 2.5 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.
//
// Broken Sword 2.5 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 Broken Sword 2.5; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
// -----------------------------------------------------------------------------
#include <stdio.h>
#include <stdarg.h>
#include <string>
#include "sword25/kernel/filesystemutil.h"
#include "sword25/kernel/log.h"
#include "sword25/kernel/debug/debugtools.h"
// Konstanten
static const char* BF_LOG_FILENAME = "log.txt";
static const size_t LOG_BUFFERSIZE = 1024 * 16;
// Logging soll nur stattfinden wenn es aktiviert ist
#ifdef BS_ACTIVATE_LOGGING
FILE* BS_Log::_LogFile = NULL;
bool BS_Log::_LineBegin = true;
const char* BS_Log::_Prefix = NULL;
const char* BS_Log::_File = NULL;
int BS_Log::_Line = 0;
bool BS_Log::_AutoNewline = false;
std::vector<BS_Log::LOG_LISTENER_CALLBACK> BS_Log::_LogListener;
bool BS_Log::_CreateLog()
{
// Logfile �ffnen
BS_FileSystemUtil::GetInstance().CreateDirectory(BS_FileSystemUtil::GetInstance().GetUserdataDirectory());
_LogFile = fopen((BS_FileSystemUtil::GetInstance().GetUserdataDirectory() + "\\" + BF_LOG_FILENAME).c_str(), "w");
if (_LogFile)
{
// Sicherstellen, dass es beim Beenden geschlossen wird
atexit(_CloseLog);
// Titelzeile in das Logfile schreiben
Log("Broken Sword 2.5 Engine - Build: %s - %s - VersionID: %s\n", __DATE__, __TIME__, BS_Debugtools::GetVersionID());
Log("-----------------------------------------------------------------------------------------------------\n");
return true;
}
// Log-File konnte nicht erstellt werden
return false;
}
void BS_Log::_CloseLog()
{
if (_LogFile) fclose(_LogFile);
}
void BS_Log::Log(const char* Format, ...)
{
char Message[LOG_BUFFERSIZE];
// Nachricht erzeugen
va_list ArgList;
va_start(ArgList, Format);
_vsnprintf(Message, sizeof(Message), Format, ArgList);
// Nachricht loggen
_WriteLog(Message);
_FlushLog();
}
void BS_Log::LogPrefix(const char* Prefix, const char* Format, ...)
{
char Message[LOG_BUFFERSIZE];
char ExtFormat[LOG_BUFFERSIZE];
// Falls die Ausgabe am Anfang einer neuen Zeile aufgeh�rt hat, muss die neue Ausgabe mit dem Pr�fix
// beginnen
ExtFormat[0] = 0;
if (_LineBegin)
{
_snprintf(ExtFormat, sizeof(ExtFormat), "%s%s: ", ExtFormat, Prefix);
_LineBegin = false;
}
// Formatstring zeilenweise durchgehen und an jeden Zeilenanfang das Pr�fix setzen
for (;;)
{
const char* NextLine = strstr(Format, "\n");
if (!NextLine || *(NextLine + strlen("\n")) == 0)
{
_snprintf(ExtFormat, sizeof(ExtFormat), "%s%s", ExtFormat, Format);
if (NextLine) _LineBegin = true;
break;
}
else
{
strncat(ExtFormat, Format, (NextLine - Format) + strlen("\n"));
_snprintf(ExtFormat, sizeof(ExtFormat), "%s%s: ", ExtFormat, Prefix);
}
Format = NextLine + strlen("\n");
}
// Nachricht erzeugen
va_list ArgList;
va_start(ArgList, Format);
_vsnprintf(Message, sizeof(Message), ExtFormat, ArgList);
// Nachricht schreiben
_WriteLog(Message);
_FlushLog();
}
void BS_Log::LogDecorated(const char* Format, ...)
{
// Nachricht erzeugen
char Message[LOG_BUFFERSIZE];
va_list ArgList;
va_start(ArgList, Format);
_vsnprintf(Message, sizeof(Message), Format, ArgList);
// Zweiten Prefix erzeugen, falls gew�nscht
char SecondaryPrefix[1024];
if (_File && _Line)
_snprintf(SecondaryPrefix, sizeof(SecondaryPrefix), "(file: %s, line: %d) - ", _File, _Line);
// Nachricht zeilenweise ausgeben und an jeden Zeilenanfang das Pr�fix setzen
char* MessageWalker = Message;
for (;;)
{
char* NextLine = strstr(MessageWalker, "\n");
if (NextLine)
{
*NextLine = 0;
if (_LineBegin)
{
_WriteLog(_Prefix);
if (_File && _Line)
_WriteLog(SecondaryPrefix);
}
_WriteLog(MessageWalker);
_WriteLog("\n");
MessageWalker = NextLine + sizeof("\n") - 1;
_LineBegin = true;
}
else
{
if (_LineBegin)
{
_WriteLog(_Prefix);
if (_File && _Line)
_WriteLog(SecondaryPrefix);
}
_WriteLog(MessageWalker);
_LineBegin = false;
break;
}
}
// Falls gew�nscht, wird ans Ende der Nachricht automatisch ein Newline angeh�ngt.
if (_AutoNewline)
{
_WriteLog("\n");
_LineBegin = true;
}
// Pseudoparameter zur�cksetzen
_Prefix = NULL;
_File = 0;
_Line = 0;
_AutoNewline = false;
_FlushLog();
}
int BS_Log::_WriteLog(const char* Message)
{
if (!_LogFile) if (!_CreateLog()) return false;
std::vector<LOG_LISTENER_CALLBACK>::iterator Iter = _LogListener.begin();
for (; Iter != _LogListener.end(); ++Iter)
(*Iter)(Message);
fprintf(_LogFile, Message);
return true;
}
void BS_Log::_FlushLog()
{
fflush(_LogFile);
}
void (*BS_LogPtr)(const char *, ...) = BS_Log::Log;
extern "C"
{
void BS_Log_C(const char* Message)
{
BS_LogPtr(Message);
}
}
#else
extern "C"
{
void BS_Log_C(const char* Message) {};
}
#endif
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