125 lines
3.5 KiB
C
125 lines
3.5 KiB
C
/*
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* Copyright 2005-2011, Haiku, Inc. All Rights Reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _TIME_H_
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#define _TIME_H_
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#include <sys/types.h>
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struct sigevent; /* defined in <signal.h> */
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typedef __haiku_int32 clock_t;
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typedef __haiku_int32 suseconds_t;
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typedef __haiku_uint32 useconds_t;
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#if defined(__i386__) && !defined(__x86_64__)
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typedef __haiku_int32 time_t;
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#else
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typedef __haiku_int64 time_t;
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#endif
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#define CLOCKS_PER_SEC 1000000
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#define CLK_TCK CLOCKS_PER_SEC
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#define MAX_TIMESTR 70
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/* maximum length of a string returned by asctime(), and ctime() */
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#define CLOCK_MONOTONIC ((clockid_t)0)
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/* system-wide monotonic clock (aka system time) */
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#define CLOCK_REALTIME ((clockid_t)-1)
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/* system-wide real time clock */
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#define CLOCK_PROCESS_CPUTIME_ID ((clockid_t)-2)
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/* clock measuring the used CPU time of the current process */
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#define CLOCK_THREAD_CPUTIME_ID ((clockid_t)-3)
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/* clock measuring the used CPU time of the current thread */
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#define TIMER_ABSTIME 1 /* absolute timer flag */
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struct timespec {
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time_t tv_sec; /* seconds */
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long tv_nsec; /* and nanoseconds */
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};
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struct itimerspec {
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struct timespec it_interval;
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struct timespec it_value;
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};
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struct tm {
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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; /* day of month (1 to 31) */
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int tm_mon; /* months since January (0 to 11) */
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int tm_year; /* years since 1900 */
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int tm_wday; /* days since Sunday (0 to 6, Sunday = 0, ...) */
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int tm_yday; /* days since January 1 (0 to 365) */
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int tm_isdst; /* daylight savings time (0 == no, >0 == yes, <0 == has to be calculated */
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int tm_gmtoff; /* timezone offset to GMT */
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char *tm_zone; /* timezone name */
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};
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/* special timezone support */
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extern char *tzname[2];
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extern int daylight;
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extern long timezone;
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern clock_t clock(void);
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extern double difftime(time_t time1, time_t time2);
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extern time_t mktime(struct tm *tm);
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extern time_t time(time_t *timer);
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extern char *asctime(const struct tm *tm);
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extern char *asctime_r(const struct tm *timep, char *buffer);
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extern char *ctime(const time_t *timer);
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extern char *ctime_r(const time_t *timer, char *buffer);
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extern struct tm *gmtime(const time_t *timer);
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extern struct tm *gmtime_r(const time_t *timer, struct tm *tm);
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extern struct tm *localtime(const time_t *timer);
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extern struct tm *localtime_r(const time_t *timer, struct tm *tm);
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extern int nanosleep(const struct timespec *, struct timespec *);
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extern size_t strftime(char *buffer, size_t maxSize, const char *format,
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const struct tm *tm);
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extern char *strptime(const char *buf, const char *format, struct tm *tm);
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/* clock functions */
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int clock_getres(clockid_t clockID, struct timespec* resolution);
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int clock_gettime(clockid_t clockID, struct timespec* _time);
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int clock_settime(clockid_t clockID, const struct timespec* _time);
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int clock_nanosleep(clockid_t clockID, int flags,
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const struct timespec* _time, struct timespec* remainingTime);
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int clock_getcpuclockid(pid_t pid, clockid_t* _clockID);
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/* timer functions */
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int timer_create(clockid_t clockID, struct sigevent* event,
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timer_t* timerID);
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int timer_delete(timer_t timerID);
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int timer_gettime(timer_t timerID, struct itimerspec* value);
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int timer_settime(timer_t timerID, int flags,
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const struct itimerspec* value, struct itimerspec* oldValue);
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int timer_getoverrun(timer_t timerID);
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/* special timezone support */
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extern void tzset(void);
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/* non-POSIX */
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extern int stime(const time_t *t);
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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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