49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
/*
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sys/time.h
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*/
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#ifndef _SYS__TIME_H
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#define _SYS__TIME_H
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#include <ansi.h>
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/* Open Group Base Specifications Issue 6 (not complete) */
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struct timeval
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{
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long /*time_t*/ tv_sec;
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long /*useconds_t*/ tv_usec;
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};
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struct timezone {
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int tz_minuteswest; /* minutes west of Greenwich */
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int tz_dsttime; /* type of dst correction */
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};
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/* Operations on timevals. */
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#define timerclear(tp) (tp)->tv_sec = (tp)->tv_usec = 0L
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#define timerisset(tp) ((tp)->tv_sec || (tp)->tv_usec)
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int gettimeofday(struct timeval *_RESTRICT tp, void *_RESTRICT tzp);
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/* Compatibility with other Unix systems */
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int settimeofday(const struct timeval *tp, const void *tzp);
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/* setitimer/getitimer interface */
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struct itimerval
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{
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struct timeval it_interval;
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struct timeval it_value;
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};
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#define ITIMER_REAL 0
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#define ITIMER_VIRTUAL 1 /* Not implemented */
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#define ITIMER_PROF 2 /* Not implemented */
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int getitimer(int which, struct itimerval *value);
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int setitimer(int which, const struct itimerval *_RESTRICT value,
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struct itimerval *_RESTRICT ovalue);
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#include <sys/select.h>
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#endif /* _SYS__TIME_H */
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