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, 00025 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 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 _OPENCV_LOGGER_H_ 00032 #define _OPENCV_LOGGER_H_ 00033 00034 00035 #include <cstdio> 00036 #include <stdarg.h> 00037 #include "opencv2/flann/general.h" 00038 00039 using namespace std; 00040 00041 namespace cvflann 00042 { 00043 00044 class CV_EXPORTS Logger 00045 { 00046 FILE* stream; 00047 int logLevel; 00048 00049 public: 00050 00051 Logger() : stream(stdout), logLevel(LOG_WARN) {}; 00052 00053 ~Logger() 00054 { 00055 if (stream!=NULL && stream!=stdout) { 00056 fclose(stream); 00057 } 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 void setLevel(int level) { logLevel = level; } 00074 00075 int log(int level, const char* fmt, ...); 00076 00077 int log(int level, const char* fmt, va_list arglist); 00078 00079 int fatal(const char* fmt, ...); 00080 00081 int error(const char* fmt, ...); 00082 00083 int warn(const char* fmt, ...); 00084 00085 int info(const char* fmt, ...); 00086 }; 00087 00088 CV_EXPORTS Logger& logger(); 00089 00090 } // namespace cvflann 00091 00092 #endif //_OPENCV_LOGGER_H_