mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2024-12-19 04:57:53 +00:00
154 lines
3.3 KiB
C++
154 lines
3.3 KiB
C++
/*
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* ZeroTier One - Global Peer to Peer Ethernet
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* Copyright (C) 2011-2014 ZeroTier Networks LLC
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* --
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*
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* ZeroTier may be used and distributed under the terms of the GPLv3, which
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* are available at: http://www.gnu.org/licenses/gpl-3.0.html
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*
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* If you would like to embed ZeroTier into a commercial application or
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* redistribute it in a modified binary form, please contact ZeroTier Networks
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* LLC. Start here: http://www.zerotier.com/
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#include <time.h>
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#include "Constants.hpp"
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#include "Logger.hpp"
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namespace ZeroTier {
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Logger::Logger(const char *p,const char *prefix,unsigned long maxLogSize) :
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_path((p) ? p : ""),
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_prefix((prefix) ? (std::string(prefix) + " ") : ""),
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_maxLogSize(maxLogSize),
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_log_m(),
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_log((FILE *)0)
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{
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if (_path.length())
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_log = fopen(_path.c_str(),"a");
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else _log = stdout;
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}
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Logger::~Logger()
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{
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fflush(_log);
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if ((_log)&&(_log != stdout)&&(_log != stderr))
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fclose(_log);
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}
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void Logger::log(const char *fmt,...)
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{
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va_list ap;
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char tmp[128];
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if (_log) {
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Mutex::Lock _l(_log_m);
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_rotateIfNeeded();
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if (_log) {
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time_t now = time(0);
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#ifdef __WINDOWS__
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ctime_s(tmp,sizeof(tmp),&now);
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char *nowstr = tmp;
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#else
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char *nowstr = ctime_r(&now,tmp);
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#endif
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for(char *c=nowstr;*c;++c) {
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if (*c == '\n')
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*c = '\0';
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}
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if (_prefix.length())
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fwrite(_prefix.data(),1,_prefix.length(),_log);
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fprintf(_log,"[%s] ",nowstr);
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va_start(ap,fmt);
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vfprintf(_log,fmt,ap);
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va_end(ap);
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#ifdef _WIN32
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fwrite("\r\n",1,2,_log);
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#else
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fwrite("\n",1,1,_log);
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#endif
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fflush(_log);
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}
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}
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}
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#ifdef ZT_TRACE
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void Logger::trace(const char *module,unsigned int line,const char *fmt,...)
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{
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va_list ap;
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char tmp[128];
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if (_log) {
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Mutex::Lock _l(_log_m);
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_rotateIfNeeded();
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if (_log) {
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time_t now = time(0);
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#ifdef __WINDOWS__
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ctime_s(tmp,sizeof(tmp),&now);
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char *nowstr = tmp;
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#else
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char *nowstr = ctime_r(&now,tmp);
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#endif
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for(char *c=nowstr;*c;++c) {
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if (*c == '\n')
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*c = '\0';
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}
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if (_prefix.length())
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fwrite(_prefix.data(),1,_prefix.length(),_log);
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fprintf(_log,"[%s] TRACE/%s:%u ",nowstr,module,line);
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va_start(ap,fmt);
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vfprintf(_log,fmt,ap);
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va_end(ap);
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#ifdef _WIN32
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fwrite("\r\n",1,2,_log);
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#else
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fwrite("\n",1,1,_log);
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#endif
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fflush(_log);
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}
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}
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}
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#endif
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void Logger::_rotateIfNeeded()
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{
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if ((_maxLogSize)&&(_log != stdout)&&(_log != stderr)) {
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long pos = ftell(_log);
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if (pos > (long)_maxLogSize) {
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fclose(_log);
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rename(_path.c_str(),std::string(_path).append(".old").c_str());
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_log = fopen(_path.c_str(),"w");
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}
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}
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}
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} // namespace ZeroTier
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