59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
/* @(#)time.h 1.1 94/10/31 SMI; from S5R2 1.1 */
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#ifndef __time_h
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#define __time_h
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#include <sys/stdtypes.h>
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#ifndef NULL
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#define NULL 0
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#endif
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struct tm { /* see ctime(3) */
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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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char *tm_zone;
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long tm_gmtoff;
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};
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/*
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* Following 2 lines are required to make CLK_TCK work.
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* If they change here they have to change in <sys/unistd.h> as well.
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*/
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extern long sysconf(/* int name */);
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#define _SC_CLK_TCK 3 /* clock ticks/sec */
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/*
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* POSIX.1 uses CLK_TCK to specify units used by times(3).
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* POSIX.1a doesn't use a name for this and says CLK_TCK is obsolescent, but
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* we'll probably have to support it for a long time.
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*/
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#define CLK_TCK (sysconf(_SC_CLK_TCK))
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/* 881207 ANSI C draft uses CLOCKS_PER_SEC to specify units used by clock(3). */
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#define CLOCKS_PER_SEC 1000000L
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extern char * asctime(/* const struct tm *t */);
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extern char * ctime(/* const time_t *t */);
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extern struct tm * gmtime(/* const time_t *t */);
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extern struct tm * localtime(/* const time_t *t */);
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extern time_t mktime(/* struct tm *timeptr */);
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extern size_t strftime(/* char *s, size_t maxsize, const char *format,
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const struct tm *timeptr */);
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extern time_t time(/* time_t *t */);
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extern void tzset(/* void */);
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extern char *tzname[];
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#ifndef _POSIX_SOURCE
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extern int daylight;
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extern long timezone;
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extern void tzsetwall(/* void */);
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#endif !_POSIX_SOURCE
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#endif !__time_h
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