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/*
* Copyright (C) 2008-2013 TrinityCore <http://www.trinitycore.org/>
*
* This program 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.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "AppenderFile.h"
#include "Common.h"
AppenderFile::AppenderFile(uint8 id, std::string const& name, LogLevel level, const char* _filename, const char* _logDir, const char* _mode, AppenderFlags _flags, uint64 fileSize)
: Appender(id, name, APPENDER_FILE, level, _flags)
, filename(_filename)
, logDir(_logDir)
, mode(_mode)
, _fileSize(fileSize)
{
dynamicName = std::string::npos != filename.find("%s");
backup = _flags & APPENDER_FLAGS_MAKE_FILE_BACKUP;
logfile = !dynamicName ? OpenFile(_filename, _mode, backup) : NULL;
}
AppenderFile::~AppenderFile()
{
if (logfile)
{
fclose(logfile);
logfile = NULL;
}
}
void AppenderFile::_write(LogMessage const& message)
{
if (dynamicName)
{
char namebuf[TRINITY_PATH_MAX];
snprintf(namebuf, TRINITY_PATH_MAX, filename.c_str(), message.param1.c_str());
logfile = OpenFile(namebuf, mode, backup);
_fileSize = ftell(logfile);
}
if (logfile)
{
if (!dynamicName && _fileSize + message.Size() > _maxFileSize)
{
/** @ We assume all log files have a .log extension.
If file "gol.log" is at its max capacity, this will spawn a new file, "gol_.log". If that one reaches capacity, it'll spawn "gol__.log", etc.
*/
filename.replace(filename.end() - 3, filename.end(), "_.log");
logfile = OpenFile(filename.c_str(), mode, backup);
_write(message);
return;
}
fprintf(logfile, "%s%s", message.prefix.c_str(), message.text.c_str());
fflush(logfile);
_fileSize += message.Size();
if (dynamicName)
{
fclose(logfile);
logfile = NULL;
}
}
}
FILE* AppenderFile::OpenFile(std::string const &filename, std::string const &mode, bool backup)
{
if (mode == "w" && backup)
{
std::string newName(filename);
newName.push_back('.');
newName.append(LogMessage::getTimeStr(time(NULL)));
rename(filename.c_str(), newName.c_str()); // no error handling... if we couldn't make a backup, just ignore
}
FILE* ret = fopen((logDir + filename).c_str(), mode.c_str());
_fileSize = ftell(ret);
return ret;
}
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