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#ifndef _TIME_H
#include <time/time.h>
#ifndef _ISOMAC
# include <bits/types/locale_t.h>
# include <stdbool.h>
extern __typeof (strftime_l) __strftime_l;
libc_hidden_proto (__strftime_l)
extern __typeof (strptime_l) __strptime_l;
extern struct tm *__localtime64 (const __time64_t *__timer);
libc_hidden_proto (time)
libc_hidden_proto (asctime)
libc_hidden_proto (mktime)
libc_hidden_proto (timelocal)
libc_hidden_proto (localtime)
libc_hidden_proto (strftime)
libc_hidden_proto (strptime)
libc_hidden_proto (__localtime64)
/* Indicates whether the underlying kernel has 64-bit time support.
This is required for e.g. librt, which cannot directly check the
flag variable that init-first.c sets when detecting support. */
extern int __y2038_kernel_support (void);
extern __typeof (clock_getres) __clock_getres;
extern __typeof (clock_gettime) __clock_gettime;
libc_hidden_proto (__clock_gettime)
extern __typeof (clock_settime) __clock_settime;
extern __typeof (clock_nanosleep) __clock_nanosleep;
extern __typeof (clock_getcpuclockid) __clock_getcpuclockid;
extern int __clock_gettime64 (clockid_t __clock_id,
struct __timespec64 *__tp) __THROW;
/* Now define the internal interfaces. */
struct tm;
/* Defined in mktime.c. */
extern const unsigned short int __mon_yday[2][13] attribute_hidden;
/* Defined in localtime.c. */
extern struct tm _tmbuf attribute_hidden;
/* Defined in tzset.c. */
extern char *__tzstring (const char *string) attribute_hidden;
extern int __use_tzfile attribute_hidden;
extern void __tzfile_read (const char *file, size_t extra,
char **extrap) attribute_hidden;
extern void __tzfile_compute (__time64_t timer, int use_localtime,
long int *leap_correct, int *leap_hit,
struct tm *tp) attribute_hidden;
extern void __tzfile_default (const char *std, const char *dst,
long int stdoff, long int dstoff)
attribute_hidden;
extern void __tzset_parse_tz (const char *tz) attribute_hidden;
extern void __tz_compute (__time64_t timer, struct tm *tm, int use_localtime)
__THROW attribute_hidden;
/* Subroutine of `mktime'. Return the `time_t' representation of TP and
normalize TP, given that a `struct tm *' maps to a `time_t' as performed
by FUNC. Keep track of next guess for time_t offset in *OFFSET. */
extern __time64_t __mktime_internal (struct tm *__tp,
struct tm *(*__func) (const __time64_t *,
struct tm *),
__time64_t *__offset) attribute_hidden;
extern struct tm *__localtime_r (const time_t *__timer,
struct tm *__tp) attribute_hidden;
extern struct tm *__localtime64_r (const __time64_t *__timer,
struct tm *__tp) attribute_hidden;
extern struct tm *__gmtime_r (const time_t *__restrict __timer,
struct tm *__restrict __tp);
libc_hidden_proto (__gmtime_r)
extern struct tm *__gmtime64_r (const __time64_t *__restrict __timer,
struct tm *__restrict __tp);
/* Compute the `struct tm' representation of T,
offset OFFSET seconds east of UTC,
and store year, yday, mon, mday, wday, hour, min, sec into *TP.
Return nonzero if successful. */
extern int __offtime (const __time64_t __timer,
long int __offset,
struct tm *__tp) attribute_hidden;
extern char *__asctime_r (const struct tm *__tp, char *__buf)
attribute_hidden;
extern void __tzset (void) attribute_hidden;
/* Prototype for the internal function to get information based on TZ. */
extern struct tm *__tz_convert (const __time64_t timer, int use_localtime,
struct tm *tp) attribute_hidden;
extern int __nanosleep (const struct timespec *__requested_time,
struct timespec *__remaining);
hidden_proto (__nanosleep)
extern int __getdate_r (const char *__string, struct tm *__resbufp)
attribute_hidden;
/* Determine CLK_TCK value. */
extern int __getclktck (void) attribute_hidden;
/* strptime support. */
extern char * __strptime_internal (const char *rp, const char *fmt,
struct tm *tm, void *statep,
locale_t locparam) attribute_hidden;
extern double __difftime (time_t time1, time_t time0);
extern double __difftime64 (__time64_t time1, __time64_t time0);
/* Use in the clock_* functions. Size of the field representing the
actual clock ID. */
#define CLOCK_IDFIELD_SIZE 3
/* check whether a time64_t value fits in a time_t */
static inline bool
fits_in_time_t (__time64_t t)
{
return t == (time_t) t;
}
/* convert a known valid struct timespec into a struct __timespec64 */
static inline void
valid_timespec_to_timespec64(const struct timespec *ts32,
struct __timespec64 *ts64)
{
ts64->tv_sec = ts32->tv_sec;
ts64->tv_nsec = ts32->tv_nsec;
/* we only need to zero ts64->tv_pad if we pass it to the kernel */
}
/* convert a known valid struct __timespec64 into a struct timespec */
static inline void
valid_timespec64_to_timespec(const struct __timespec64 *ts64,
struct timespec *ts32)
{
ts32->tv_sec = (time_t) ts64->tv_sec;
ts32->tv_nsec = ts64->tv_nsec;
}
/* check if a value lies with the valid nanoseconds range */
#define IS_VALID_NANOSECONDS(ns) (ns >= 0 && ns <= 999999999)
/* check and convert a struct timespec into a struct __timespec64 */
static inline bool timespec_to_timespec64(const struct timespec *ts32,
struct __timespec64 *ts64)
{
/* check that ts32 holds a valid count of nanoseconds */
if (! IS_VALID_NANOSECONDS(ts32->tv_nsec))
return false;
/* all ts32 fields can fit in ts64, so copy them */
valid_timespec_to_timespec64(ts32, ts64);
/* we only need to zero ts64->tv_pad if we pass it to the kernel */
return true;
}
/* check and convert a struct __timespec64 into a struct timespec */
static inline bool timespec64_to_timespec(const struct __timespec64 *ts64,
struct timespec *ts32)
{
/* check that tv_nsec holds a valid count of nanoseconds */
if (! IS_VALID_NANOSECONDS(ts64->tv_nsec))
return false;
/* check that tv_sec can fit in a __time_t */
if (! fits_in_time_t(ts64->tv_sec))
return false;
/* all ts64 fields can fit in ts32, so copy them */
valid_timespec64_to_timespec(ts64, ts32);
return true;
}
#endif
#endif
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