src/timefmt.h

   1 #ifndef __UTIL_TIMEFMT_H
   2 #define __UTIL_TIMEFMT_H
   3
   4 #include <sys/types.h>
   5
   6 #define INVALID_TIME_TEXT       "(invalid)"
   7
   8 #ifdef HAVE_STRFTIME
   9
  10 /* safe localtime formatting - strftime()-using version */
  11 #define FMT_LOCALTIME(buffer, bufsize, fmt, when)                       \
  12     {                                                                   \
  13         struct tm *whentm;                                              \
  14         whentm = localtime(&when);                                      \
  15         if (whentm == NULL)                                             \
  16         {                                                               \
  17             strncpy(buffer, INVALID_TIME_TEXT, bufsize);                \
  18             buffer[bufsize-1] = 0;                                      \
  19         }                                                               \
  20         else                                                            \
  21         {                                                               \
  22             strftime(buffer, bufsize, fmt, whentm);                     \
  23         }                                                               \
  24     }                                                                   \
  25
  26 #else
  27
  28 /* fallback when strftime/localtime not available */
  29 #define FMT_LOCALTIME(buffer,bufsize,fmt,when)                  \
  30     {                                                           \
  31         ctime_r(when,buffer);                                   \
  32     }                                                           \
  33
  34 #endif
  35
  36 #define FMT_LOCALTIME_CURRENT(buffer, bufsize, fmt)             \
  37     {                                                           \
  38         time_t __current_time;                                  \
  39         time(&__current_time);                                  \
  40         FMT_LOCALTIME(buffer,bufsize,fmt,__current_time);       \
  41     }
  42
  43 #endif                          /* !__UTIL_H */