mirror of
https://github.com/TrinityCore/TrinityCore.git
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128 lines
3.8 KiB
C++
128 lines
3.8 KiB
C++
/*
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* Copyright (C) 2008-2016 TrinityCore <http://www.trinitycore.org/>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "AppenderFile.h"
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#include "Common.h"
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#include "StringFormat.h"
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#include "Log.h"
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#if PLATFORM == PLATFORM_WINDOWS
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# include <Windows.h>
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#endif
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AppenderFile::AppenderFile(uint8 id, std::string const& name, LogLevel level, AppenderFlags flags, ExtraAppenderArgs extraArgs) :
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Appender(id, name, level, flags),
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logfile(NULL),
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_logDir(sLog->GetLogsDir()),
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_maxFileSize(0),
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_fileSize(0)
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{
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if (extraArgs.empty())
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throw InvalidAppenderArgsException(Trinity::StringFormat("Log::CreateAppenderFromConfig: Missing file name for appender %s\n", name.c_str()));
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_fileName = extraArgs[0];
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char const* mode = "a";
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if (extraArgs.size() > 1)
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mode = extraArgs[1];
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if (flags & APPENDER_FLAGS_USE_TIMESTAMP)
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{
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size_t dot_pos = _fileName.find_last_of(".");
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if (dot_pos != std::string::npos)
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_fileName.insert(dot_pos, sLog->GetLogsTimestamp());
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else
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_fileName += sLog->GetLogsTimestamp();
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}
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if (extraArgs.size() > 2)
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_maxFileSize = atoi(extraArgs[2]);
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else
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_maxFileSize = 0;
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_dynamicName = std::string::npos != _fileName.find("%s");
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_backup = (flags & APPENDER_FLAGS_MAKE_FILE_BACKUP) != 0;
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if (!_dynamicName)
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logfile = OpenFile(_fileName, mode, !strcmp(mode, "w") && _backup);
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}
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AppenderFile::~AppenderFile()
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{
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CloseFile();
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}
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void AppenderFile::_write(LogMessage const* message)
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{
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bool exceedMaxSize = _maxFileSize > 0 && (_fileSize.load() + message->Size()) > _maxFileSize;
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if (_dynamicName)
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{
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char namebuf[TRINITY_PATH_MAX];
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snprintf(namebuf, TRINITY_PATH_MAX, _fileName.c_str(), message->param1.c_str());
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// always use "a" with dynamic name otherwise it could delete the log we wrote in last _write() call
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FILE* file = OpenFile(namebuf, "a", _backup || exceedMaxSize);
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if (!file)
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return;
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fprintf(file, "%s%s\n", message->prefix.c_str(), message->text.c_str());
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fflush(file);
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_fileSize += uint64(message->Size());
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fclose(file);
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return;
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}
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else if (exceedMaxSize)
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logfile = OpenFile(_fileName, "w", true);
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if (!logfile)
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return;
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fprintf(logfile, "%s%s\n", message->prefix.c_str(), message->text.c_str());
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fflush(logfile);
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_fileSize += uint64(message->Size());
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}
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FILE* AppenderFile::OpenFile(std::string const& filename, std::string const& mode, bool backup)
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{
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std::string fullName(_logDir + filename);
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if (backup)
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{
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CloseFile();
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std::string newName(fullName);
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newName.push_back('.');
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newName.append(LogMessage::getTimeStr(time(NULL)));
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std::replace(newName.begin(), newName.end(), ':', '-');
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rename(fullName.c_str(), newName.c_str()); // no error handling... if we couldn't make a backup, just ignore
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}
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if (FILE* ret = fopen(fullName.c_str(), mode.c_str()))
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{
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_fileSize = ftell(ret);
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return ret;
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}
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return NULL;
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}
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void AppenderFile::CloseFile()
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{
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if (logfile)
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{
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fclose(logfile);
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logfile = NULL;
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}
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}
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