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 static LogLevel minimumLevel(LogCategory category)
  24 {
  25     switch(category){
  26         case VALGRIND:
  27             return DEBUG;
  28         default:
  29             return INFO;
  30     }
  31 }
  32
  33 #define TIME_BUFFER_MAXSIZE 100
  34
  35 static void printtime(FILE *stream, const char *format, time_t time)
  36 {
  37     char buf[TIME_BUFFER_MAXSIZE];
  38     strftime(buf, TIME_BUFFER_MAXSIZE, format, localtime(&time));
  39     fprintf(stream, "%s", buf);
  40 }
  41
  42 static void vlog_message(LogLevel level, LogCategory category, const char *file, int line, const char *function, const char *message, va_list argp)
  43 {
  44     if(level >= minimumLevel(category)){
  45         printtime(stderr, "%F %T ", time(NULL));
  46         fprintf(stderr, "%-6s", loglevel_names[level]);
  47         if(file==NULL)
  48             fprintf(stderr, "Notion: ");
  49         else
  50             fprintf(stderr, "/notion/../%s:%d: %s: ", file, line, function);
  51
  52         vfprintf(stderr, message, argp);
  53         fprintf(stderr, "\n");
  54     }
  55 }
  56
  57 void log_message(LogLevel level, LogCategory category, const char *file, int line, const char* function, const char* message, ...)
  58 {
  59     va_list argp;
  60     va_start(argp, message);
  61     vlog_message(level, category, file, line, function, message, argp);
  62     va_end(argp);
  63 }
  64
  65 #if __STDC_VERSION__ < 199901L
  66 extern void LOG(LogLevel level, LogCategory category, const char* message, ...)
  67 {
  68     va_list argp;
  69     va_start(argp, message);
  70     vlog_message(level, category, NULL, -1, NULL, message, argp);
  71     va_end(argp);
  72 }
  73 #endif
  74