src/timefmt.h

   1
   2 /** \file timefmt.h
   3  *  \brief Header: time formating macroses
   4  */
   5
   6 #ifndef __UTIL_TIMEFMT_H
   7 #define __UTIL_TIMEFMT_H
   8
   9 #include <sys/types.h>
  10
  11 #define INVALID_TIME_TEXT       "(invalid)"
  12
  13 #ifdef HAVE_STRFTIME
  14
  15 /* safe localtime formatting - strftime()-using version */
  16 #define FMT_LOCALTIME(buffer, bufsize, fmt, when)                       \
  17     {                                                                   \
  18         struct tm *whentm;                                              \
  19         whentm = localtime(&when);                                      \
  20         if (whentm == NULL)                                             \
  21         {                                                               \
  22             strncpy(buffer, INVALID_TIME_TEXT, bufsize);                \
  23             buffer[bufsize-1] = 0;                                      \
  24         }                                                               \
  25         else                                                            \
  26         {                                                               \
  27             strftime(buffer, bufsize, fmt, whentm);                     \
  28         }                                                               \
  29     }                                                                   \
  30
  31 #else
  32
  33 /* fallback when strftime/localtime not available */
  34 #define FMT_LOCALTIME(buffer,bufsize,fmt,when)                  \
  35     {                                                           \
  36         ctime_r(when,buffer);                                   \
  37     }                                                           \
  38
  39 #endif
  40
  41 #define FMT_LOCALTIME_CURRENT(buffer, bufsize, fmt)             \
  42     {                                                           \
  43         time_t __current_time;                                  \
  44         time(&__current_time);                                  \
  45         FMT_LOCALTIME(buffer,bufsize,fmt,__current_time);       \
  46     }
  47
  48 #endif                          /* !__UTIL_H */