newlib-cygwin/newlib/libc/include/time.h

314 lines
7.4 KiB
C

/*
* time.h
*
* Struct and function declarations for dealing with time.
*/
#ifndef _TIME_H_
#define _TIME_H_
#include "_ansi.h"
#include <sys/cdefs.h>
#include <sys/reent.h>
#define __need_size_t
#define __need_NULL
#include <stddef.h>
/* Get _CLOCKS_PER_SEC_ */
#include <machine/time.h>
#ifndef _CLOCKS_PER_SEC_
#define _CLOCKS_PER_SEC_ 1000
#endif
#define CLOCKS_PER_SEC _CLOCKS_PER_SEC_
#define CLK_TCK CLOCKS_PER_SEC
#include <sys/types.h>
#include <sys/timespec.h>
#if __POSIX_VISIBLE >= 200809
#include <sys/_locale.h>
#endif
_BEGIN_STD_C
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;
#ifdef __TM_GMTOFF
long __TM_GMTOFF;
#endif
#ifdef __TM_ZONE
const char *__TM_ZONE;
#endif
};
clock_t clock (void);
double difftime (time_t _time2, time_t _time1);
time_t mktime (struct tm *_timeptr);
time_t time (time_t *_timer);
#ifndef _REENT_ONLY
char *asctime (const struct tm *_tblock);
char *ctime (const time_t *_time);
struct tm *gmtime (const time_t *_timer);
struct tm *localtime (const time_t *_timer);
#endif
size_t strftime (char *__restrict _s,
size_t _maxsize, const char *__restrict _fmt,
const struct tm *__restrict _t);
#if __POSIX_VISIBLE >= 200809
extern size_t strftime_l (char *__restrict _s, size_t _maxsize,
const char *__restrict _fmt,
const struct tm *__restrict _t, locale_t _l);
#endif
char *asctime_r (const struct tm *__restrict,
char *__restrict);
char *ctime_r (const time_t *, char *);
struct tm *gmtime_r (const time_t *__restrict,
struct tm *__restrict);
struct tm *localtime_r (const time_t *__restrict,
struct tm *__restrict);
_END_STD_C
#ifdef __cplusplus
extern "C" {
#endif
#if __XSI_VISIBLE
char *strptime (const char *__restrict,
const char *__restrict,
struct tm *__restrict);
#endif
#if __GNU_VISIBLE
char *strptime_l (const char *__restrict, const char *__restrict,
struct tm *__restrict, locale_t);
#endif
#if __POSIX_VISIBLE
void tzset (void);
#endif
void _tzset_r (struct _reent *);
/* getdate functions */
#ifdef HAVE_GETDATE
#if __XSI_VISIBLE >= 4
#ifndef _REENT_ONLY
#define getdate_err (*__getdate_err())
int *__getdate_err (void);
struct tm * getdate (const char *);
/* getdate_err is set to one of the following values to indicate the error.
1 the DATEMSK environment variable is null or undefined,
2 the template file cannot be opened for reading,
3 failed to get file status information,
4 the template file is not a regular file,
5 an error is encountered while reading the template file,
6 memory allication failed (not enough memory available),
7 there is no line in the template that matches the input,
8 invalid input specification */
#endif /* !_REENT_ONLY */
#endif /* __XSI_VISIBLE >= 4 */
#if __GNU_VISIBLE
/* getdate_r returns the error code as above */
int getdate_r (const char *, struct tm *);
#endif /* __GNU_VISIBLE */
#endif /* HAVE_GETDATE */
/* defines for the opengroup specifications Derived from Issue 1 of the SVID. */
#if __SVID_VISIBLE || __XSI_VISIBLE
extern __IMPORT long _timezone;
extern __IMPORT int _daylight;
#endif
#if __POSIX_VISIBLE
extern __IMPORT char *_tzname[2];
/* POSIX defines the external tzname being defined in time.h */
#ifndef tzname
#define tzname _tzname
#endif
#endif /* __POSIX_VISIBLE */
#ifdef __cplusplus
}
#endif
#include <sys/features.h>
#ifdef __CYGWIN__
#include <cygwin/time.h>
#endif /*__CYGWIN__*/
#if defined(_POSIX_TIMERS)
#include <signal.h>
#ifdef __cplusplus
extern "C" {
#endif
/* Clocks, P1003.1b-1993, p. 263 */
int clock_settime (clockid_t clock_id, const struct timespec *tp);
int clock_gettime (clockid_t clock_id, struct timespec *tp);
int clock_getres (clockid_t clock_id, struct timespec *res);
/* Create a Per-Process Timer, P1003.1b-1993, p. 264 */
int timer_create (clockid_t clock_id,
struct sigevent *__restrict evp,
timer_t *__restrict timerid);
/* Delete a Per_process Timer, P1003.1b-1993, p. 266 */
int timer_delete (timer_t timerid);
/* Per-Process Timers, P1003.1b-1993, p. 267 */
int timer_settime (timer_t timerid, int flags,
const struct itimerspec *__restrict value,
struct itimerspec *__restrict ovalue);
int timer_gettime (timer_t timerid, struct itimerspec *value);
int timer_getoverrun (timer_t timerid);
/* High Resolution Sleep, P1003.1b-1993, p. 269 */
int nanosleep (const struct timespec *rqtp, struct timespec *rmtp);
#ifdef __cplusplus
}
#endif
#endif /* _POSIX_TIMERS */
#if defined(_POSIX_CLOCK_SELECTION)
#ifdef __cplusplus
extern "C" {
#endif
int clock_nanosleep (clockid_t clock_id, int flags,
const struct timespec *rqtp, struct timespec *rmtp);
#ifdef __cplusplus
}
#endif
#endif /* _POSIX_CLOCK_SELECTION */
#ifdef __cplusplus
extern "C" {
#endif
/* CPU-time Clock Attributes, P1003.4b/D8, p. 54 */
/* values for the clock enable attribute */
#define CLOCK_ENABLED 1 /* clock is enabled, i.e. counting execution time */
#define CLOCK_DISABLED 0 /* clock is disabled */
/* values for the pthread cputime_clock_allowed attribute */
#define CLOCK_ALLOWED 1 /* If a thread is created with this value a */
/* CPU-time clock attached to that thread */
/* shall be accessible. */
#define CLOCK_DISALLOWED 0 /* If a thread is created with this value, the */
/* thread shall not have a CPU-time clock */
/* accessible. */
/* Flag indicating time is "absolute" with respect to the clock
associated with a time. Value 4 is historic. */
#define TIMER_ABSTIME 4
/* Manifest Constants, P1003.1b-1993, p. 262 */
#if __GNU_VISIBLE
#define CLOCK_REALTIME_COARSE ((clockid_t) 0)
#endif
#define CLOCK_REALTIME ((clockid_t) 1)
/* Manifest Constants, P1003.4b/D8, p. 55 */
#if defined(_POSIX_CPUTIME)
/* When used in a clock or timer function call, this is interpreted as
the identifier of the CPU_time clock associated with the PROCESS
making the function call. */
#define CLOCK_PROCESS_CPUTIME_ID ((clockid_t) 2)
#endif
#if defined(_POSIX_THREAD_CPUTIME)
/* When used in a clock or timer function call, this is interpreted as
the identifier of the CPU_time clock associated with the THREAD
making the function call. */
#define CLOCK_THREAD_CPUTIME_ID ((clockid_t) 3)
#endif
#if defined(_POSIX_MONOTONIC_CLOCK)
/* The identifier for the system-wide monotonic clock, which is defined
* as a clock whose value cannot be set via clock_settime() and which
* cannot have backward clock jumps. */
#define CLOCK_MONOTONIC ((clockid_t) 4)
#endif
#if __GNU_VISIBLE
#define CLOCK_MONOTONIC_RAW ((clockid_t) 5)
#define CLOCK_MONOTONIC_COARSE ((clockid_t) 6)
#define CLOCK_BOOTTIME ((clockid_t) 7)
#define CLOCK_REALTIME_ALARM ((clockid_t) 8)
#define CLOCK_BOOTTIME_ALARM ((clockid_t) 9)
#endif
#if defined(_POSIX_CPUTIME)
/* Accessing a Process CPU-time CLock, P1003.4b/D8, p. 55 */
int clock_getcpuclockid (pid_t pid, clockid_t *clock_id);
#endif /* _POSIX_CPUTIME */
#if defined(_POSIX_CPUTIME) || defined(_POSIX_THREAD_CPUTIME)
/* CPU-time Clock Attribute Access, P1003.4b/D8, p. 56 */
int clock_setenable_attr (clockid_t clock_id, int attr);
int clock_getenable_attr (clockid_t clock_id, int *attr);
#endif /* _POSIX_CPUTIME or _POSIX_THREAD_CPUTIME */
#ifdef __cplusplus
}
#endif
#endif /* _TIME_H_ */