/* * 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. * * @(#)time.h 7.1 (Berkeley) 6/4/86 */ /* * Structure returned by gettimeofday(2) system call, * and used in other calls. */ struct timeval { long tv_sec; /* seconds */ long tv_usec; /* and microseconds */ }; 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 */ /* * 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 KERNEL #include #endif