include/time.h

   1 #ifndef _TIME_H
   2 #if defined __need_time_t  || defined __need_clock_t || defined __need_timespec
   3 # include <time/time.h>
   4 #else
   5 # include <time/time.h>
   6
   7 /* Now define the internal interfaces.  */
   8 struct tm;
   9
  10 /* Defined in mktime.c.  */
  11 extern const unsigned short int __mon_yday[2][13];
  12
  13 /* Defined in localtime.c.  */
  14 extern struct tm _tmbuf;
  15
  16 /* Defined in tzset.c.  */
  17 extern char *__tzstring (const char *string);
  18
  19 /* Defined in tzset.c. */
  20 extern size_t __tzname_cur_max;
  21
  22
  23 extern int __use_tzfile;
  24
  25 extern void __tzfile_read (const char *file, size_t extra,
  26                            char **extrap);
  27 extern int __tzfile_compute (time_t timer, int use_localtime,
  28                              long int *leap_correct, int *leap_hit,
  29                              struct tm *tp);
  30 extern void __tzfile_default (const char *std, const char *dst,
  31                               long int stdoff, long int dstoff);
  32
  33 /* Subroutine of `mktime'.  Return the `time_t' representation of TP and
  34    normalize TP, given that a `struct tm *' maps to a `time_t' as performed
  35    by FUNC.  Keep track of next guess for time_t offset in *OFFSET.  */
  36 extern time_t __mktime_internal (struct tm *__tp,
  37                                  struct tm *(*__func) (const time_t *,
  38                                                        struct tm *),
  39                                  time_t *__offset);
  40 extern struct tm *__localtime_r (__const time_t *__timer,
  41                                  struct tm *__tp);
  42
  43 extern struct tm *__gmtime_r (__const time_t *__restrict __timer,
  44                               struct tm *__restrict __tp);
  45
  46 /* Compute the `struct tm' representation of *T,
  47    offset OFFSET seconds east of UTC,
  48    and store year, yday, mon, mday, wday, hour, min, sec into *TP.
  49    Return nonzero if successful.  */
  50 extern int __offtime (__const time_t *__timer,
  51                       long int __offset,
  52                       struct tm *__tp);
  53
  54 extern char *__asctime_r (__const struct tm *__tp, char *__buf);
  55 extern void __tzset (void);
  56
  57 /* Prototype for the internal function to get information based on TZ.  */
  58 extern struct tm *__tz_convert (const time_t *timer, int use_localtime, struct tm *tp);
  59
  60 /* Return the maximum length of a timezone name.
  61    This is what `sysconf (_SC_TZNAME_MAX)' does.  */
  62 extern long int __tzname_max (void);
  63
  64 extern int __nanosleep (__const struct timespec *__requested_time,
  65                         struct timespec *__remaining);
  66 extern int __getdate_r (__const char *__string, struct tm *__resbufp);
  67
  68
  69 /* Determine CLK_TCK value.  */
  70 extern int __getclktck (void);
  71 #endif
  72 #endif