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/* @(#)time.h 2.9 87/01/17 SMI; from UCB 7.1 6/4/86 */
/*
Definitions of various structures used on UNIX for
time-related syscalls.
*/
/*
* Copyright (c) 1982, 1986 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*/
#ifndef _UNIX_TIME_
#define _UNIX_TIME_
/*
* Structure returned by gettimeofday(2) system call,
* and used in other calls.
*
* William P. Bame (2/8/91)
* since "timeval" is defined in socket.h (for VMS), don't define it here.
*/
#ifndef __SOCKET_LOADED
#include <socket.h>
#endif
#ifndef __SOCKET_TYPEDEFS
struct timeval
{
long tv_sec; /* seconds */
long tv_usec; /* and microseconds */
};
#endif
struct timezone
{
int tz_minuteswest; /* minutes west of Greenwich */
int tz_dsttime; /* type of dst correction */
};
#define DST_NONE 0 /* not on dst */
#define DST_USA 1 /* USA style dst */
#define DST_AUST 2 /* Australian style dst */
#define DST_WET 3 /* Western European dst */
#define DST_MET 4 /* Middle European dst */
#define DST_EET 5 /* Eastern European dst */
#define DST_CAN 6 /* Canada */
#define DST_GB 7 /* Great Britain and Eire */
#define DST_RUM 8 /* Rumania */
#define DST_TUR 9 /* Turkey */
#define DST_AUSTALT 10 /* Australian style with shift in 1986 */
/*
* Operations on timevals.
*
* NB: timercmp does not work for >= or <=.
*/
#define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec)
#define timercmp(tvp, uvp, cmp) \
((tvp)->tv_sec cmp (uvp)->tv_sec || \
(tvp)->tv_sec == (uvp)->tv_sec && (tvp)->tv_usec cmp (uvp)->tv_usec)
#define timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0
/*
* Names of the interval timers, and structure
* defining a timer setting.
*/
#define ITIMER_REAL 0
#define ITIMER_VIRTUAL 1
#define ITIMER_PROF 2
struct itimerval
{
struct timeval it_interval; /* timer interval */
struct timeval it_value; /* current value */
};
#ifndef __TIME_LOADED
#include <time.h>
#endif
#endif !_UNIX_TIME_
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