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 #include <cstdio> 00035 #include <stdarg.h> 00036 00037 namespace cvflann 00038 { 00039 00040 enum flann_log_level_t { 00041 FLANN_LOG_NONE = 0, 00042 FLANN_LOG_FATAL = 1, 00043 FLANN_LOG_ERROR = 2, 00044 FLANN_LOG_WARN = 3, 00045 FLANN_LOG_INFO = 4 00046 }; 00047 00048 class CV_EXPORTS Logger 00049 { 00050 FILE* stream; 00051 int logLevel; 00052 00053 public: 00054 00055 Logger() : stream(stdout), logLevel(FLANN_LOG_WARN) {}; 00056 00057 ~Logger() 00058 { 00059 if (stream!=NULL && stream!=stdout) { 00060 fclose(stream); 00061 } 00062 } 00063 00064 void setDestination(const char* name) 00065 { 00066 if (name==NULL) { 00067 stream = stdout; 00068 } 00069 else { 00070 stream = fopen(name,"w"); 00071 if (stream == NULL) { 00072 stream = stdout; 00073 } 00074 } 00075 } 00076 00077 void setLevel(int level) { logLevel = level; } 00078 00079 int log(int level, const char* fmt, ...); 00080 00081 int log(int level, const char* fmt, va_list arglist); 00082 00083 int fatal(const char* fmt, ...); 00084 00085 int error(const char* fmt, ...); 00086 00087 int warn(const char* fmt, ...); 00088 00089 int info(const char* fmt, ...); 00090 }; 00091 00092 CV_EXPORTS Logger& logger(); 00093 00094 } // namespace cvflann 00095 00096 #endif //_OPENCV_LOGGER_H_