mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-21 01:12:26 +08:00
d51f99ce80
glibc support for 64-bit time_t on 32-bit architectures will involve: - Using 64-bit times inside glibc, with conversions to and from 32-bit times taking place as necessary for interfaces using such times. - Adding 64-bit-time support in the glibc public API. This support should be dynamic, i.e. glibc should provide both 32-bit and 64-bit implementations and let user code choose at compile time whether to use the 32-bit or 64-bit interfaces. This requires a glibc-internal name for a type for times that are always 64-bit. Based on __TIMESIZE, a new macro is defined, __TIME64_T_TYPE, which is always the right __*_T_TYPE to hold a 64-bit-time. __TIME64_T_TYPE equals __TIME_T_TYPE if __TIMESIZE equals 64 and equals __SQUAD_T_TYPE otherwise. __time64_t can then replace uses of internal_time_t. This patch was tested by running 'make check' on branch master then applying this patch and its predecessor and running 'make check' again, and checking that both 'make check' yield identical results. This was done on x86_64-linux-gnu and i686-linux-gnu. * bits/time64.h: New file. * include/time.h: Replace internal_time_t with __time64_t. * posix/bits/types (__time64_t): Add. * stdlib/Makefile: Add bits/time64.h to includes. * time/tzfile.c: Replace internal_time_t with __time64_t.
107 lines
3.4 KiB
C
107 lines
3.4 KiB
C
#ifndef _TIME_H
|
|
#include <time/time.h>
|
|
|
|
#ifndef _ISOMAC
|
|
# include <bits/types/locale_t.h>
|
|
|
|
extern __typeof (strftime_l) __strftime_l;
|
|
libc_hidden_proto (__strftime_l)
|
|
extern __typeof (strptime_l) __strptime_l;
|
|
|
|
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)
|
|
|
|
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;
|
|
|
|
/* 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 (time_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. Record next guess for localtime-gmtime offset in *OFFSET. */
|
|
extern time_t __mktime_internal (struct tm *__tp,
|
|
struct tm *(*__func) (const time_t *,
|
|
struct tm *),
|
|
long int *__offset) attribute_hidden;
|
|
extern struct tm *__localtime_r (const time_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)
|
|
|
|
/* 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 time_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 time_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);
|
|
|
|
|
|
/* Use in the clock_* functions. Size of the field representing the
|
|
actual clock ID. */
|
|
#define CLOCK_IDFIELD_SIZE 3
|
|
|
|
#endif
|
|
#endif
|