/*
 *	TIME.H		Date/Time related definitions
 *	 ansi draft sec  4.12
 */

#ifndef	_TIME_H
#define	_TIME_H

#ifndef _COMPILER_H
#include <compiler.h>
#endif

#define CLOCKS_PER_SEC  ((clock_t) 200)           /* clock ticks per second */
#define CLK_TCK         CLOCKS_PER_SEC            /* old name for this */

#ifndef NULL
#define NULL __NULL
#endif

#ifndef _TIME_T
#define _TIME_T long
typedef _TIME_T		time_t;
#endif

#ifndef _SIZE_T
#define _SIZE_T __SIZE_TYPEDEF__
typedef _SIZE_T		size_t;
#endif

typedef unsigned long	clock_t;

struct tm
{
	int	tm_sec;		/* seconds (0..59) */
	int	tm_min;		/* minutes (0..59) */
	int	tm_hour;	/* hours (0..23) */
	int	tm_mday;	/* day of month (1..31) */
	int	tm_mon;		/* month (0..11) */
	int	tm_year;	/* year - 1900 */
	int	tm_wday;	/* day of week (0=Sun..6=Sat) */
	int	tm_yday;	/* day of year (0..365) */
	int	tm_isdst;	/* daylight saving?  */
};


#ifndef __STRICT_ANSI__
struct timeval {
	long	tv_sec;		/* seconds */
	long	tv_usec;	/* microseconds */
};

struct timezone {
	int	tz_minuteswest;	/* minues west of GMT */
	int	tz_dsttime;	/* daylight savings time correction */
};
#endif

__EXTERN clock_t	clock	 __PROTO((void));
__EXTERN double		difftime __PROTO((time_t, time_t));
__EXTERN time_t		mktime	 __PROTO((const struct tm *));
__EXTERN time_t		time	 __PROTO((time_t *));
__EXTERN char * 	asctime	 __PROTO((const struct tm *));
__EXTERN char *		ctime	 __PROTO((const time_t *));
__EXTERN struct tm *	gmtime   __PROTO((const time_t *));
__EXTERN struct tm *	localtime __PROTO((const time_t *));
__EXTERN __SIZE_TYPEDEF__ strftime __PROTO((
	char *s, size_t maxsize, const char *format, const struct tm *timeptr));

/* violation of ANSI standard, but POSIX wants it... sigh */
__EXTERN void		tzset	__PROTO((void));

#ifndef __STRICT_ANSI__
__EXTERN int	gettimeofday __PROTO((struct timeval *, struct timezone *));
__EXTERN int	settimeofday __PROTO((struct timeval *, struct timezone *));

#define timercmp(tva, tvb, op) \
	((tva)->tv_sec op (tvb)->tv_sec || \
	 ((tva)->tv_sec == (tvb)->tv_sec && (tva)->tv_usec op (tvb)->tv_usec))
#endif

#endif /* _TIME_H */