247 lines
6.1 KiB
C
247 lines
6.1 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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#include "_ansi.h"
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#include <sys/reent.h>
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#include <sys/linux_time.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifndef NULL
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#define NULL 0
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#endif
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/* Get _CLOCKS_PER_SEC_ */
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#include <machine/time.h>
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#include <sys/types.h>
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/* Time Value Specification Structures, P1003.1b-1993, p. 261 */
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#ifndef _STRUCT_TIMESPEC
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#define _STRUCT_TIMESPEC
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struct timespec {
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time_t tv_sec; /* Seconds */
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long tv_nsec; /* Nanoseconds */
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};
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#endif /* !_STRUCT_TIMESPEC */
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#ifndef __need_timespec
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#define _TIME_H_ 1
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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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#define __need_size_t
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#include <stddef.h>
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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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};
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#ifndef __timer_t_defined
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# define __timer_t_defined 1
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typedef __timer_t timer_t;
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#endif
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clock_t clock (void);
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double difftime (time_t _time2, time_t _time1);
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time_t mktime (struct tm *_timeptr);
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time_t time (time_t *_timer);
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#ifndef _REENT_ONLY
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char *asctime (const struct tm *_tblock);
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char *ctime (const time_t *_time);
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struct tm *gmtime (const time_t *_timer);
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struct tm *localtime (const time_t *_timer);
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#endif
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size_t strftime (char *_s, size_t _maxsize, const char *_fmt, const struct tm *_t);
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char *asctime_r (const struct tm *, char *);
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char *ctime_r (const time_t *, char *);
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struct tm *gmtime_r (const time_t *, struct tm *);
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struct tm *localtime_r (const time_t *, struct tm *);
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#ifndef __STRICT_ANSI__
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char *strptime (const char *, const char *, struct tm *);
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void tzset (void);
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void _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 *__gettzinfo (void);
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/* getdate functions */
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#ifndef _REENT_ONLY
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#define getdate_err (*__getdate_err())
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int *__getdate_err (void);
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struct tm * 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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/* getdate_r returns the error code as above */
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int getdate_r (const char *, struct tm *);
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/* defines for the opengroup specifications Derived from Issue 1 of the SVID. */
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extern __IMPORT long _timezone;
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extern __IMPORT int _daylight;
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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 /* !__STRICT_ANSI__ */
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#include <sys/features.h>
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#if defined(_POSIX_TIMERS)
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#include <signal.h>
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/* Clocks, P1003.1b-1993, p. 263 */
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int clock_settime (clockid_t clock_id, const struct timespec *tp);
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int clock_gettime (clockid_t clock_id, struct timespec *tp);
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int 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 timer_create (clockid_t clock_id, struct sigevent *evp, timer_t *timerid);
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/* Delete a Per_process Timer, P1003.1b-1993, p. 266 */
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int timer_delete (timer_t timerid);
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/* Per-Process Timers, P1003.1b-1993, p. 267 */
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int timer_settime (timer_t timerid, int flags, const struct itimerspec *value,
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struct itimerspec *ovalue);
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int timer_gettime (timer_t timerid, struct itimerspec *value);
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int timer_getoverrun (timer_t timerid);
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/* High Resolution Sleep, P1003.1b-1993, p. 269 */
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int nanosleep (const struct timespec *rqtp, struct timespec *rmtp);
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#endif /* _POSIX_TIMERS */
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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_CPUTIME)
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/* Accessing a Process CPU-time CLock, P1003.4b/D8, p. 55 */
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int 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 clock_setenable_attr (clockid_t clock_id, int attr);
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int 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 /* ! __need_timespec */
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#undef __need_timespec
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#endif /* _TIME_H_ */
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