Dogcows Code - chaz/yoink/blob - src/Moof/Log.cc

   1
   2 /*******************************************************************************
   3
   4  Copyright (c) 2009, Charles McGarvey
   5  All rights reserved.
   6
   7  Redistribution   and   use  in  source  and  binary  forms,  with  or  without
   8  modification, are permitted provided that the following conditions are met:
   9
  10    * Redistributions  of  source  code  must retain the above copyright notice,
  11      this list of conditions and the following disclaimer.
  12    * Redistributions  in binary form must reproduce the above copyright notice,
  13      this  list of conditions and the following disclaimer in the documentation
  14      and/or other materials provided with the distribution.
  15
  16  THIS  SOFTWARE  IS  PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  17  AND  ANY  EXPRESS  OR  IMPLIED  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  19  DISCLAIMED.  IN  NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  20  FOR  ANY  DIRECT,  INDIRECT,  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  DAMAGES  (INCLUDING,  BUT  NOT  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  22  SERVICES;  LOSS  OF  USE,  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  23  CAUSED  AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  24  OR  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  25  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26
  27 *******************************************************************************/
  28
  29 #include <cstdarg>
  30 #include <cstdio>               // snprintf
  31 #include <cstring>              // strcpy
  32
  33 #include "Log.hh"
  34
  35
  36 namespace Mf {
  37
  38
  39 static LogLevel logLevel_ = WARNING;
  40
  41 inline void printLog_(int logLevel, const char* fmt, va_list args)
  42 {
  43         if (logLevel_ < logLevel) return;
  44
  45         switch (logLevel)
  46         {
  47                 case ERROR:
  48                         fprintf(stderr, "  error: ");
  49                         break;
  50                 case WARNING:
  51                         fprintf(stderr, "warning: ");
  52                         break;
  53                 case INFO:
  54                         fprintf(stderr, "   info: ");
  55                         break;
  56                 case DEBUGGING:
  57                         fprintf(stderr, "  debug: ");
  58                         break;
  59         }
  60
  61         vfprintf(stderr, fmt, args);
  62         fprintf(stderr, "\n");
  63 }
  64
  65
  66 LogLevel setLogLevel(LogLevel level)
  67 {
  68         if (level != 0)
  69                 logLevel_ = level;
  70
  71         return logLevel_;
  72 }
  73
  74
  75 void logError(const char* fmt, ...)
  76 {
  77         va_list args;
  78         va_start(args, fmt);
  79
  80         printLog_(ERROR, fmt, args);
  81
  82         va_end(args);
  83 }
  84
  85 void logWarning(const char* fmt, ...)
  86 {
  87         va_list args;
  88         va_start(args, fmt);
  89
  90         printLog_(WARNING, fmt, args);
  91
  92         va_end(args);
  93 }
  94
  95 void logInfo(const char* fmt, ...)
  96 {
  97         va_list args;
  98         va_start(args, fmt);
  99
 100         printLog_(INFO, fmt, args);
 101
 102         va_end(args);
 103 }
 104
 105 void logDebug(const char* fmt, ...)
 106 {
 107         va_list args;
 108         va_start(args, fmt);
 109
 110         printLog_(DEBUGGING, fmt, args);
 111
 112         va_end(args);
 113 }
 114
 115
 116 } // namespace Mf
 117