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 static 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
  76 logError(const char* fmt, ...)
  77 {
  78         va_list args;
  79         va_start(args, fmt);
  80
  81         printLog_(ERROR, fmt, args);
  82
  83         va_end(args);
  84 }
  85
  86 void
  87 logWarning(const char* fmt, ...)
  88 {
  89         va_list args;
  90         va_start(args, fmt);
  91
  92         printLog_(WARNING, fmt, args);
  93
  94         va_end(args);
  95 }
  96
  97 void
  98 logInfo(const char* fmt, ...)
  99 {
 100         va_list args;
 101         va_start(args, fmt);
 102
 103         printLog_(INFO, fmt, args);
 104
 105         va_end(args);
 106 }
 107
 108 void
 109 logDebug(const char* fmt, ...)
 110 {
 111         va_list args;
 112         va_start(args, fmt);
 113
 114         printLog_(DEBUGGING, fmt, args);
 115
 116         va_end(args);
 117 }
 118
 119
 120 } // namespace Mf
 121