git.squeep.com Git - reservoir_sample/blob - notify.c

   1 #include <stdlib.h>
   2 #include <stdarg.h>
   3 #include <stdio.h>
   4
   5 #include "notify.h"
   6
   7 /* common messaging hook */
   8
   9 /* generic notifier */
  10 static
  11 void notify_default_(unsigned int l, const char *fmt, ...) {
  12         FILE *f = stderr;
  13         va_list ap;
  14         const char *level_names[] = {
  15                 "FATAL",
  16                 "ERROR",
  17                 "INFO",
  18                 "VERBOSE",
  19                 "DEBUG",
  20                 "DEBUG_LOCK",
  21         };
  22         const size_t levels = sizeof level_names / sizeof *level_names;
  23
  24         va_start(ap, fmt);
  25         flockfile(f);
  26         if (l < levels) {
  27                 fprintf(f, "%s", level_names[l]);
  28         } else {
  29                 fprintf(f, "[%d] ", l);
  30         }
  31         vfprintf(f, fmt, ap);
  32         funlockfile(f);
  33         va_end(ap);
  34 }
  35
  36 notify_fn_t *notify __attribute__((format(printf, 2, 3))) = notify_default_;