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153 lines
3.3 KiB
153 lines
3.3 KiB
/* |
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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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