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