mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-16 10:00:12 +00:00
2e44b10b42
The clock_nanosleep syscall is not supported on newer 32-bit platforms (such as RV32). To fix this issue let's use clock_nanosleep_time64 if it is avaliable.
302 lines
8.2 KiB
C
302 lines
8.2 KiB
C
#ifndef _TIME_H
|
|
#include <time/time.h>
|
|
|
|
#ifndef _ISOMAC
|
|
# include <bits/types/struct_timeval.h>
|
|
# include <bits/types/locale_t.h>
|
|
# include <stdbool.h>
|
|
# include <time/mktime-internal.h>
|
|
# include <endian.h>
|
|
# include <time-clockid.h>
|
|
|
|
extern __typeof (strftime_l) __strftime_l;
|
|
libc_hidden_proto (__strftime_l)
|
|
extern __typeof (strptime_l) __strptime_l;
|
|
|
|
libc_hidden_proto (asctime)
|
|
libc_hidden_proto (mktime)
|
|
libc_hidden_proto (timelocal)
|
|
libc_hidden_proto (localtime)
|
|
libc_hidden_proto (strftime)
|
|
libc_hidden_proto (strptime)
|
|
|
|
extern __typeof (clock_gettime) __clock_gettime;
|
|
libc_hidden_proto (__clock_gettime)
|
|
extern __typeof (clock_settime) __clock_settime;
|
|
libc_hidden_proto (__clock_settime)
|
|
|
|
extern __typeof (clock_nanosleep) __clock_nanosleep;
|
|
libc_hidden_proto (__clock_nanosleep);
|
|
|
|
#ifdef __linux__
|
|
extern __typeof (clock_adjtime) __clock_adjtime;
|
|
libc_hidden_proto (__clock_adjtime);
|
|
#endif
|
|
|
|
/* 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,
|
|
int stdoff, 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;
|
|
|
|
#if __TIMESIZE == 64
|
|
# define __timespec64 timespec
|
|
#else
|
|
/* The glibc Y2038-proof struct __timespec64 structure for a time value.
|
|
To keep things Posix-ish, we keep the nanoseconds field a 32-bit
|
|
signed long, but since the Linux field is a 64-bit signed int, we
|
|
pad our tv_nsec with a 32-bit unnamed bit-field padding.
|
|
|
|
As a general rule the Linux kernel is ignoring upper 32 bits of
|
|
tv_nsec field. */
|
|
struct __timespec64
|
|
{
|
|
__time64_t tv_sec; /* Seconds */
|
|
# if BYTE_ORDER == BIG_ENDIAN
|
|
__int32_t :32; /* Padding */
|
|
__int32_t tv_nsec; /* Nanoseconds */
|
|
# else
|
|
__int32_t tv_nsec; /* Nanoseconds */
|
|
__int32_t :32; /* Padding */
|
|
# endif
|
|
};
|
|
#endif
|
|
|
|
#if __TIMESIZE == 64
|
|
# define __ctime64 ctime
|
|
#else
|
|
extern char *__ctime64 (const __time64_t *__timer) __THROW;
|
|
libc_hidden_proto (__ctime64)
|
|
#endif
|
|
|
|
#if __TIMESIZE == 64
|
|
# define __ctime64_r ctime_r
|
|
#else
|
|
extern char *__ctime64_r (const __time64_t *__restrict __timer,
|
|
char *__restrict __buf) __THROW;
|
|
libc_hidden_proto (__ctime64_r)
|
|
#endif
|
|
|
|
#if __TIMESIZE == 64
|
|
# define __localtime64 localtime
|
|
#else
|
|
extern struct tm *__localtime64 (const __time64_t *__timer);
|
|
libc_hidden_proto (__localtime64)
|
|
#endif
|
|
|
|
extern struct tm *__localtime_r (const time_t *__timer,
|
|
struct tm *__tp) attribute_hidden;
|
|
#if __TIMESIZE != 64
|
|
extern struct tm *__localtime64_r (const __time64_t *__timer,
|
|
struct tm *__tp);
|
|
libc_hidden_proto (__localtime64_r)
|
|
|
|
extern __time64_t __mktime64 (struct tm *__tp) __THROW;
|
|
libc_hidden_proto (__mktime64)
|
|
#endif
|
|
|
|
extern struct tm *__gmtime_r (const time_t *__restrict __timer,
|
|
struct tm *__restrict __tp);
|
|
libc_hidden_proto (__gmtime_r)
|
|
|
|
#if __TIMESIZE == 64
|
|
# define __gmtime64 gmtime
|
|
#else
|
|
extern struct tm *__gmtime64 (const __time64_t *__timer);
|
|
libc_hidden_proto (__gmtime64)
|
|
|
|
extern struct tm *__gmtime64_r (const __time64_t *__restrict __timer,
|
|
struct tm *__restrict __tp);
|
|
libc_hidden_proto (__gmtime64_r)
|
|
|
|
extern __time64_t __timegm64 (struct tm *__tp) __THROW;
|
|
libc_hidden_proto (__timegm64)
|
|
#endif
|
|
|
|
#if __TIMESIZE == 64
|
|
# define __clock_settime64 __clock_settime
|
|
#else
|
|
extern int __clock_settime64 (clockid_t clock_id,
|
|
const struct __timespec64 *tp);
|
|
libc_hidden_proto (__clock_settime64)
|
|
#endif
|
|
|
|
#if __TIMESIZE == 64
|
|
# define __clock_getres64 __clock_getres
|
|
#else
|
|
extern int __clock_getres64 (clockid_t clock_id,
|
|
struct __timespec64 *tp);
|
|
libc_hidden_proto (__clock_getres64);
|
|
#endif
|
|
|
|
#if __TIMESIZE == 64
|
|
# define __utimensat64 __utimensat
|
|
#else
|
|
extern int __utimensat64 (int fd, const char *file,
|
|
const struct __timespec64 tsp[2], int flags);
|
|
libc_hidden_proto (__utimensat64);
|
|
#endif
|
|
|
|
extern int __utimensat64_helper (int fd, const char *file,
|
|
const struct __timespec64 tsp[2], int flags);
|
|
libc_hidden_proto (__utimensat64_helper);
|
|
|
|
#if __TIMESIZE == 64
|
|
# define __futimens64 __futimens
|
|
#else
|
|
extern int __futimens64 (int fd, const struct __timespec64 tsp[2]);
|
|
libc_hidden_proto (__futimens64);
|
|
#endif
|
|
|
|
/* 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 (__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 (__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;
|
|
|
|
#if __TIMESIZE == 64
|
|
# define __difftime64 __difftime
|
|
#else
|
|
extern double __difftime64 (__time64_t time1, __time64_t time0);
|
|
libc_hidden_proto (__difftime64)
|
|
#endif
|
|
|
|
extern double __difftime (time_t time1, time_t time0);
|
|
|
|
#if __TIMESIZE == 64
|
|
# define __clock_nanosleep_time64 __clock_nanosleep
|
|
#else
|
|
extern int __clock_nanosleep_time64 (clockid_t clock_id,
|
|
int flags, const struct __timespec64 *req,
|
|
struct __timespec64 *rem);
|
|
libc_hidden_proto (__clock_nanosleep_time64)
|
|
#endif
|
|
|
|
/* Use in the clock_* functions. Size of the field representing the
|
|
actual clock ID. */
|
|
#define CLOCK_IDFIELD_SIZE 3
|
|
|
|
/* Check whether T fits in time_t. */
|
|
static inline bool
|
|
in_time_t_range (__time64_t t)
|
|
{
|
|
time_t s = t;
|
|
return s == t;
|
|
}
|
|
|
|
/* Convert a known valid struct timeval into a struct __timespec64. */
|
|
static inline struct __timespec64
|
|
valid_timeval_to_timespec64 (const struct timeval tv)
|
|
{
|
|
struct __timespec64 ts64;
|
|
|
|
ts64.tv_sec = tv.tv_sec;
|
|
ts64.tv_nsec = tv.tv_usec * 1000;
|
|
|
|
return ts64;
|
|
}
|
|
|
|
/* Convert a known valid struct timespec into a struct __timespec64. */
|
|
static inline struct __timespec64
|
|
valid_timespec_to_timespec64 (const struct timespec ts)
|
|
{
|
|
struct __timespec64 ts64;
|
|
|
|
ts64.tv_sec = ts.tv_sec;
|
|
ts64.tv_nsec = ts.tv_nsec;
|
|
|
|
return ts64;
|
|
}
|
|
|
|
/* Convert a valid and within range of struct timespec, struct
|
|
__timespec64 into a struct timespec. */
|
|
static inline struct timespec
|
|
valid_timespec64_to_timespec (const struct __timespec64 ts64)
|
|
{
|
|
struct timespec ts;
|
|
|
|
ts.tv_sec = (time_t) ts64.tv_sec;
|
|
ts.tv_nsec = ts64.tv_nsec;
|
|
|
|
return ts;
|
|
}
|
|
|
|
/* Convert a valid and within range of struct timeval struct
|
|
__timespec64 into a struct timeval. */
|
|
static inline struct timeval
|
|
valid_timespec64_to_timeval (const struct __timespec64 ts64)
|
|
{
|
|
struct timeval tv;
|
|
|
|
tv.tv_sec = (time_t) ts64.tv_sec;
|
|
tv.tv_usec = ts64.tv_nsec / 1000;
|
|
|
|
return tv;
|
|
}
|
|
|
|
/* Check if a value is in the valid nanoseconds range. Return true if
|
|
it is, false otherwise. */
|
|
static inline bool
|
|
valid_nanoseconds (__syscall_slong_t ns)
|
|
{
|
|
return __glibc_likely (0 <= ns && ns < 1000000000);
|
|
}
|
|
|
|
/* Helper function to get time in seconds, similar to time. */
|
|
static inline time_t
|
|
time_now (void)
|
|
{
|
|
struct timespec ts;
|
|
__clock_gettime (TIME_CLOCK_GETTIME_CLOCKID, &ts);
|
|
return ts.tv_sec;
|
|
}
|
|
#endif
|
|
|
|
#endif
|