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 # include <xlocale.h>
   7
   8 extern __typeof (strftime_l) __strftime_l;
   9 libc_hidden_proto (__strftime_l)
  10 extern __typeof (strptime_l) __strptime_l;
  11
  12 libc_hidden_proto (time)
  13 libc_hidden_proto (asctime)
  14 libc_hidden_proto (mktime)
  15 libc_hidden_proto (timelocal)
  16 libc_hidden_proto (localtime)
  17 libc_hidden_proto (strftime)
  18 libc_hidden_proto (strptime)
  19
  20 /* Now define the internal interfaces.  */
  21 struct tm;
  22
  23 /* Defined in mktime.c.  */
  24 extern const unsigned short int __mon_yday[2][13] attribute_hidden;
  25
  26 /* Defined in localtime.c.  */
  27 extern struct tm _tmbuf attribute_hidden;
  28
  29 /* Defined in tzset.c.  */
  30 extern char *__tzstring (const char *string);
  31
  32 /* Defined in tzset.c. */
  33 extern size_t __tzname_cur_max attribute_hidden;
  34
  35
  36 extern int __use_tzfile attribute_hidden;
  37
  38 extern void __tzfile_read (const char *file, size_t extra,
  39                            char **extrap);
  40 extern void __tzfile_compute (time_t timer, int use_localtime,
  41                               long int *leap_correct, int *leap_hit,
  42                               struct tm *tp);
  43 extern void __tzfile_default (const char *std, const char *dst,
  44                               long int stdoff, long int dstoff);
  45
  46 /* Subroutine of `mktime'.  Return the `time_t' representation of TP and
  47    normalize TP, given that a `struct tm *' maps to a `time_t' as performed
  48    by FUNC.  Keep track of next guess for time_t offset in *OFFSET.  */
  49 extern time_t __mktime_internal (struct tm *__tp,
  50                                  struct tm *(*__func) (const time_t *,
  51                                                        struct tm *),
  52                                  time_t *__offset);
  53 extern struct tm *__localtime_r (__const time_t *__timer,
  54                                  struct tm *__tp) attribute_hidden;
  55
  56 extern struct tm *__gmtime_r (__const time_t *__restrict __timer,
  57                               struct tm *__restrict __tp);
  58 libc_hidden_proto (__gmtime_r)
  59
  60 /* Compute the `struct tm' representation of *T,
  61    offset OFFSET seconds east of UTC,
  62    and store year, yday, mon, mday, wday, hour, min, sec into *TP.
  63    Return nonzero if successful.  */
  64 extern int __offtime (__const time_t *__timer,
  65                       long int __offset,
  66                       struct tm *__tp);
  67
  68 extern char *__asctime_r (__const struct tm *__tp, char *__buf);
  69 extern void __tzset (void);
  70
  71 /* Prototype for the internal function to get information based on TZ.  */
  72 extern struct tm *__tz_convert (const time_t *timer, int use_localtime, struct tm *tp);
  73
  74 /* Return the maximum length of a timezone name.
  75    This is what `sysconf (_SC_TZNAME_MAX)' does.  */
  76 extern long int __tzname_max (void);
  77
  78 extern int __nanosleep (__const struct timespec *__requested_time,
  79                         struct timespec *__remaining);
  80 libc_hidden_proto(__nanosleep)
  81 extern int __getdate_r (__const char *__string, struct tm *__resbufp);
  82
  83
  84 /* Determine CLK_TCK value.  */
  85 extern int __getclktck (void);
  86
  87
  88 /* strptime support.  */
  89 /* Status of lookup: do we use the locale data or the raw data?  */
  90 enum ptime_locale_status { not, loc, raw };
  91
  92 extern char * __strptime_internal (const char *rp, const char *fmt,
  93                                    struct tm *tm,
  94                                    enum ptime_locale_status *decided,
  95                                    int era_cnt, __locale_t loc)
  96      internal_function;
  97
  98 extern double __difftime (time_t time1, time_t time0);
  99
 100
 101 /* Use in the clock_* functions.  Size of the field representing the
 102    actual clock ID.  */
 103 #ifndef _ISOMAC
 104 # define CLOCK_IDFIELD_SIZE     3
 105 #endif
 106 #endif
 107 #endif