logger.h
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00001 /***********************************************************************
00002  * Software License Agreement (BSD License)
00003  *
00004  * Copyright 2008-2009  Marius Muja (mariusm@cs.ubc.ca). All rights reserved.
00005  * Copyright 2008-2009  David G. Lowe (lowe@cs.ubc.ca). All rights reserved.
00006  *
00007  * THE BSD LICENSE
00008  *
00009  * Redistribution and use in source and binary forms, with or without
00010  * modification, are permitted provided that the following conditions
00011  * are met:
00012  *
00013  * 1. Redistributions of source code must retain the above copyright
00014  *    notice, this list of conditions and the following disclaimer.
00015  * 2. Redistributions in binary form must reproduce the above copyright
00016  *    notice, this list of conditions and the following disclaimer in the
00017  *    documentation and/or other materials provided with the distribution.
00018  *
00019  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
00020  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00021  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
00022  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
00023  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
00024  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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00026  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00027  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
00028  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00029  *************************************************************************/
00030 
00031 #ifndef RTABMAP_FLANN_LOGGER_H
00032 #define RTABMAP_FLANN_LOGGER_H
00033 
00034 #include <stdio.h>
00035 #include <stdarg.h>
00036 
00037 #include "rtflann/defines.h"
00038 
00039 
00040 namespace rtflann
00041 {
00042 
00043 class Logger
00044 {
00045     Logger() : stream(stdout), logLevel(FLANN_LOG_WARN) {}
00046 
00047     ~Logger()
00048     {
00049         if ((stream!=NULL)&&(stream!=stdout)) {
00050             fclose(stream);
00051         }
00052     }
00053 
00054     static Logger& instance()
00055     {
00056         static Logger logger;
00057         return logger;
00058     }
00059 
00060     void _setDestination(const char* name)
00061     {
00062         if (name==NULL) {
00063             stream = stdout;
00064         }
00065         else {
00066             stream = fopen(name,"w");
00067             if (stream == NULL) {
00068                 stream = stdout;
00069             }
00070         }
00071     }
00072 
00073     int _log(int level, const char* fmt, va_list arglist)
00074     {
00075         if (level > logLevel ) return -1;
00076         int ret = vfprintf(stream, fmt, arglist);
00077         return ret;
00078     }
00079 
00080 public:
00085     static void setLevel(int level) { instance().logLevel = level; }
00086 
00091     static int getLevel() { return instance().logLevel; }
00092 
00097     static void setDestination(const char* name) { instance()._setDestination(name); }
00098 
00105     static int log(int level, const char* fmt, ...)
00106     {
00107         va_list arglist;
00108         va_start(arglist, fmt);
00109         int ret = instance()._log(level,fmt,arglist);
00110         va_end(arglist);
00111         return ret;
00112     }
00113 
00114 #define LOG_METHOD(NAME,LEVEL) \
00115     static int NAME(const char* fmt, ...) \
00116     { \
00117         va_list ap; \
00118         va_start(ap, fmt); \
00119         int ret = instance()._log(LEVEL, fmt, ap); \
00120         va_end(ap); \
00121         return ret; \
00122     }
00123 
00124     LOG_METHOD(fatal, FLANN_LOG_FATAL)
00125     LOG_METHOD(error, FLANN_LOG_ERROR)
00126     LOG_METHOD(warn, FLANN_LOG_WARN)
00127     LOG_METHOD(info, FLANN_LOG_INFO)
00128     LOG_METHOD(debug, FLANN_LOG_DEBUG)
00129 
00130 private:
00131     FILE* stream;
00132     int logLevel;
00133 };
00134 
00135 }
00136 
00137 #endif //RTABMAP_FLANN_LOGGER_H


rtabmap
Author(s): Mathieu Labbe
autogenerated on Thu Jun 6 2019 21:59:20