mirror of
https://git.musl-libc.org/git/musl
synced 2025-01-09 00:02:17 +03:00
1febd21d3f
a _REDIR_TIME64 macro is introduced, which the arch's alltypes.h is expected to define, to control redirection of symbol names for interfaces that involve time_t and derived types. this ensures that object files will only be linked to libc interfaces matching the ABI whose headers they were compiled against. along with time32 compat shims, which will be introduced separately, the redirection also makes it possible for a single libc (static or shared) to be used with object files produced with either the old (32-bit time_t) headers or the new ones after 64-bit time_t switchover takes place. mixing of such object files (or shared libraries) in the same program will also be possible, but must be done with care; ABI between libc and a consumer of the libc interfaces is guaranteed to match by the the symbol name redirection, but pairwise ABI between consumers of libc that define interfaces between each other in terms of time_t is not guaranteed to match. this change adds a dependency on an additional "GNU C" feature to the public headers for existing 32-bit archs, which is generally undesirable; however, the feature is one which glibc has depended on for a long time, and thus which any viable alternative compiler is going to need to provide. 64-bit archs are not affected, nor will future 32-bit archs be, regardless of whether they are "new" on the kernel side (e.g. riscv32) or just newly-added (e.g. a new sparc or xtensa port). the same applies to newly-added ABIs for existing machine-level archs.
167 lines
4.3 KiB
C
167 lines
4.3 KiB
C
#ifndef _TIME_H
|
|
#define _TIME_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <features.h>
|
|
|
|
#ifdef __cplusplus
|
|
#define NULL 0L
|
|
#else
|
|
#define NULL ((void*)0)
|
|
#endif
|
|
|
|
|
|
#define __NEED_size_t
|
|
#define __NEED_time_t
|
|
#define __NEED_clock_t
|
|
#define __NEED_struct_timespec
|
|
|
|
#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
|
|
|| defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
|
|
|| defined(_BSD_SOURCE)
|
|
#define __NEED_clockid_t
|
|
#define __NEED_timer_t
|
|
#define __NEED_pid_t
|
|
#define __NEED_locale_t
|
|
#endif
|
|
|
|
#include <bits/alltypes.h>
|
|
|
|
#if defined(_BSD_SOURCE) || defined(_GNU_SOURCE)
|
|
#define __tm_gmtoff tm_gmtoff
|
|
#define __tm_zone tm_zone
|
|
#endif
|
|
|
|
struct tm {
|
|
int tm_sec;
|
|
int tm_min;
|
|
int tm_hour;
|
|
int tm_mday;
|
|
int tm_mon;
|
|
int tm_year;
|
|
int tm_wday;
|
|
int tm_yday;
|
|
int tm_isdst;
|
|
long __tm_gmtoff;
|
|
const char *__tm_zone;
|
|
};
|
|
|
|
clock_t clock (void);
|
|
time_t time (time_t *);
|
|
double difftime (time_t, time_t);
|
|
time_t mktime (struct tm *);
|
|
size_t strftime (char *__restrict, size_t, const char *__restrict, const struct tm *__restrict);
|
|
struct tm *gmtime (const time_t *);
|
|
struct tm *localtime (const time_t *);
|
|
char *asctime (const struct tm *);
|
|
char *ctime (const time_t *);
|
|
int timespec_get(struct timespec *, int);
|
|
|
|
#define CLOCKS_PER_SEC 1000000L
|
|
|
|
#define TIME_UTC 1
|
|
|
|
#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
|
|
|| defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
|
|
|| defined(_BSD_SOURCE)
|
|
|
|
size_t strftime_l (char * __restrict, size_t, const char * __restrict, const struct tm * __restrict, locale_t);
|
|
|
|
struct tm *gmtime_r (const time_t *__restrict, struct tm *__restrict);
|
|
struct tm *localtime_r (const time_t *__restrict, struct tm *__restrict);
|
|
char *asctime_r (const struct tm *__restrict, char *__restrict);
|
|
char *ctime_r (const time_t *, char *);
|
|
|
|
void tzset (void);
|
|
|
|
struct itimerspec {
|
|
struct timespec it_interval;
|
|
struct timespec it_value;
|
|
};
|
|
|
|
#define CLOCK_REALTIME 0
|
|
#define CLOCK_MONOTONIC 1
|
|
#define CLOCK_PROCESS_CPUTIME_ID 2
|
|
#define CLOCK_THREAD_CPUTIME_ID 3
|
|
#define CLOCK_MONOTONIC_RAW 4
|
|
#define CLOCK_REALTIME_COARSE 5
|
|
#define CLOCK_MONOTONIC_COARSE 6
|
|
#define CLOCK_BOOTTIME 7
|
|
#define CLOCK_REALTIME_ALARM 8
|
|
#define CLOCK_BOOTTIME_ALARM 9
|
|
#define CLOCK_SGI_CYCLE 10
|
|
#define CLOCK_TAI 11
|
|
|
|
#define TIMER_ABSTIME 1
|
|
|
|
int nanosleep (const struct timespec *, struct timespec *);
|
|
int clock_getres (clockid_t, struct timespec *);
|
|
int clock_gettime (clockid_t, struct timespec *);
|
|
int clock_settime (clockid_t, const struct timespec *);
|
|
int clock_nanosleep (clockid_t, int, const struct timespec *, struct timespec *);
|
|
int clock_getcpuclockid (pid_t, clockid_t *);
|
|
|
|
struct sigevent;
|
|
int timer_create (clockid_t, struct sigevent *__restrict, timer_t *__restrict);
|
|
int timer_delete (timer_t);
|
|
int timer_settime (timer_t, int, const struct itimerspec *__restrict, struct itimerspec *__restrict);
|
|
int timer_gettime (timer_t, struct itimerspec *);
|
|
int timer_getoverrun (timer_t);
|
|
|
|
extern char *tzname[2];
|
|
|
|
#endif
|
|
|
|
|
|
#if defined(_XOPEN_SOURCE) || defined(_BSD_SOURCE) || defined(_GNU_SOURCE)
|
|
char *strptime (const char *__restrict, const char *__restrict, struct tm *__restrict);
|
|
extern int daylight;
|
|
extern long timezone;
|
|
extern int getdate_err;
|
|
struct tm *getdate (const char *);
|
|
#endif
|
|
|
|
|
|
#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
|
|
int stime(const time_t *);
|
|
time_t timegm(struct tm *);
|
|
#endif
|
|
|
|
#if _REDIR_TIME64
|
|
__REDIR(time, __time64);
|
|
__REDIR(difftime, __difftime64);
|
|
__REDIR(mktime, __mktime64);
|
|
__REDIR(gmtime, __gmtime64);
|
|
__REDIR(localtime, __localtime64);
|
|
__REDIR(ctime, __ctime64);
|
|
__REDIR(timespec_get, __timespec_get_time64);
|
|
#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
|
|
|| defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
|
|
|| defined(_BSD_SOURCE)
|
|
__REDIR(gmtime_r, __gmtime64_r);
|
|
__REDIR(localtime_r, __localtime64_r);
|
|
__REDIR(ctime_r, __ctime64_r);
|
|
__REDIR(nanosleep, __nanosleep_time64);
|
|
__REDIR(clock_getres, __clock_getres_time64);
|
|
__REDIR(clock_gettime, __clock_gettime64);
|
|
__REDIR(clock_settime, __clock_settime64);
|
|
__REDIR(clock_nanosleep, __clock_nanosleep_time64);
|
|
__REDIR(timer_settime, __timer_settime64);
|
|
__REDIR(timer_gettime, __timer_gettime64);
|
|
#endif
|
|
#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
|
|
__REDIR(stime, __stime64);
|
|
__REDIR(timegm, __timegm_time64);
|
|
#endif
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
|
|
#endif
|