ioncore/log.c

   1 /*
   2  * notion/ioncore/log.c
   3  *
   4  * Copyright (c) the Notion team 2013
   5  *
   6  * See the included file LICENSE for details.
   7  */
   8
   9 #include <stdarg.h>
  10 #include <stddef.h>
  11 #include <stdio.h>
  12 #include <time.h>
  13 #include "log.h"
  14
  15 const char* loglevel_names[] = {
  16     "DEBUG",
  17     "INFO",
  18     "WARN",
  19     "ERROR",
  20 };
  21
  22 /** For this category, show log messages at this loglevel and above */
  23 LogLevel minimumLevel(LogCategory category)
  24 {
  25     switch(category){
  26         case FONT:
  27             /** For https://sourceforge.net/p/notion/bugs/63/ */
  28             return DEBUG;
  29         default:
  30             return INFO;
  31     }
  32 }
  33
  34 #define TIME_BUFFER_MAXSIZE 100
  35
  36 void printtime(FILE *stream, const char *format, time_t time)
  37 {
  38     char buf[TIME_BUFFER_MAXSIZE];
  39     strftime(buf, TIME_BUFFER_MAXSIZE, format, localtime(&time));
  40     fprintf(stream, "%s", buf);
  41 }
  42
  43 void vlog_message(LogLevel level, LogCategory category, const char *file, int line, const char *function, const char *message, va_list argp)
  44 {
  45     if(level >= minimumLevel(category)){
  46         printtime(stderr, "%F %T ", time(NULL));
  47         fprintf(stderr, "%-6s", loglevel_names[level]);
  48         if(file==NULL)
  49             fprintf(stderr, "Notion: ");
  50         else
  51             fprintf(stderr, "/notion/../%s:%d: %s: ", file, line, function);
  52
  53         vfprintf(stderr, message, argp);
  54         fprintf(stderr, "\n");
  55     }
  56 }
  57
  58 void log_message(LogLevel level, LogCategory category, const char *file, int line, const char* function, const char* message, ...)
  59 {
  60     va_list argp;
  61     va_start(argp, message);
  62     vlog_message(level, category, file, line, function, message, argp);
  63     va_end(argp);
  64 }
  65
  66 #if __STDC_VERSION__ < 199901L
  67 extern void LOG(LogLevel level, LogCategory category, const char* message, ...)
  68 {
  69     va_list argp;
  70     va_start(argp, message);
  71     vlog_message(level, category, NULL, -1, NULL, message, argp);
  72     va_end(argp);
  73 }
  74 #endif
  75