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