17c478bd9Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 27c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 37c478bd9Sstevel@tonic-gate 47c478bd9Sstevel@tonic-gate 57c478bd9Sstevel@tonic-gate /* 67c478bd9Sstevel@tonic-gate * Copyright (c) 1982, 1986 Regents of the University of California. 77c478bd9Sstevel@tonic-gate * All rights reserved. The Berkeley software License Agreement 87c478bd9Sstevel@tonic-gate * specifies the terms and conditions for redistribution. 97c478bd9Sstevel@tonic-gate */ 107c478bd9Sstevel@tonic-gate 117c478bd9Sstevel@tonic-gate /* 12*ae115bc7Smrj * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 137c478bd9Sstevel@tonic-gate * Use is subject to license terms. 147c478bd9Sstevel@tonic-gate */ 157c478bd9Sstevel@tonic-gate 167c478bd9Sstevel@tonic-gate #ifndef _SYS_TIME_H 177c478bd9Sstevel@tonic-gate #define _SYS_TIME_H 187c478bd9Sstevel@tonic-gate 197c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.16 */ 207c478bd9Sstevel@tonic-gate 217c478bd9Sstevel@tonic-gate #include <sys/feature_tests.h> 227c478bd9Sstevel@tonic-gate 237c478bd9Sstevel@tonic-gate /* 247c478bd9Sstevel@tonic-gate * Structure returned by gettimeofday(2) system call, 257c478bd9Sstevel@tonic-gate * and used in other calls. 267c478bd9Sstevel@tonic-gate */ 277c478bd9Sstevel@tonic-gate 287c478bd9Sstevel@tonic-gate #ifdef __cplusplus 297c478bd9Sstevel@tonic-gate extern "C" { 307c478bd9Sstevel@tonic-gate #endif 317c478bd9Sstevel@tonic-gate 327c478bd9Sstevel@tonic-gate #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || \ 337c478bd9Sstevel@tonic-gate defined(__EXTENSIONS__) 347c478bd9Sstevel@tonic-gate #ifndef _ASM 357c478bd9Sstevel@tonic-gate 367c478bd9Sstevel@tonic-gate #if !defined(_TIME_T) || __cplusplus >= 199711L 377c478bd9Sstevel@tonic-gate #define _TIME_T 387c478bd9Sstevel@tonic-gate typedef long time_t; /* time of day in seconds */ 397c478bd9Sstevel@tonic-gate #endif /* _TIME_T */ 407c478bd9Sstevel@tonic-gate 417c478bd9Sstevel@tonic-gate #ifndef _SUSECONDS_T 427c478bd9Sstevel@tonic-gate #define _SUSECONDS_T 437c478bd9Sstevel@tonic-gate typedef long suseconds_t; /* signed # of microseconds */ 447c478bd9Sstevel@tonic-gate #endif /* _SUSECONDS_T */ 457c478bd9Sstevel@tonic-gate 467c478bd9Sstevel@tonic-gate struct timeval { 477c478bd9Sstevel@tonic-gate time_t tv_sec; /* seconds */ 487c478bd9Sstevel@tonic-gate suseconds_t tv_usec; /* and microseconds */ 497c478bd9Sstevel@tonic-gate }; 507c478bd9Sstevel@tonic-gate 517c478bd9Sstevel@tonic-gate #if defined(_SYSCALL32) 527c478bd9Sstevel@tonic-gate 537c478bd9Sstevel@tonic-gate #include <sys/types32.h> 547c478bd9Sstevel@tonic-gate 557c478bd9Sstevel@tonic-gate #define TIMEVAL32_TO_TIMEVAL(tv, tv32) { \ 567c478bd9Sstevel@tonic-gate (tv)->tv_sec = (time_t)(tv32)->tv_sec; \ 577c478bd9Sstevel@tonic-gate (tv)->tv_usec = (tv32)->tv_usec; \ 587c478bd9Sstevel@tonic-gate } 597c478bd9Sstevel@tonic-gate 607c478bd9Sstevel@tonic-gate #define TIMEVAL_TO_TIMEVAL32(tv32, tv) { \ 617c478bd9Sstevel@tonic-gate (tv32)->tv_sec = (time32_t)(tv)->tv_sec; \ 627c478bd9Sstevel@tonic-gate (tv32)->tv_usec = (tv)->tv_usec; \ 637c478bd9Sstevel@tonic-gate } 647c478bd9Sstevel@tonic-gate 657c478bd9Sstevel@tonic-gate #define TIME32_MAX INT32_MAX 667c478bd9Sstevel@tonic-gate #define TIME32_MIN INT32_MIN 677c478bd9Sstevel@tonic-gate 687c478bd9Sstevel@tonic-gate #define TIMEVAL_OVERFLOW(tv) \ 697c478bd9Sstevel@tonic-gate ((tv)->tv_sec < TIME32_MIN || (tv)->tv_sec > TIME32_MAX) 707c478bd9Sstevel@tonic-gate 717c478bd9Sstevel@tonic-gate #endif /* _SYSCALL32 || _KERNEL */ 727c478bd9Sstevel@tonic-gate 737c478bd9Sstevel@tonic-gate #endif /* _ASM */ 747c478bd9Sstevel@tonic-gate #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) ... */ 757c478bd9Sstevel@tonic-gate 767c478bd9Sstevel@tonic-gate #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 777c478bd9Sstevel@tonic-gate #ifndef _ASM 787c478bd9Sstevel@tonic-gate struct timezone { 797c478bd9Sstevel@tonic-gate int tz_minuteswest; /* minutes west of Greenwich */ 807c478bd9Sstevel@tonic-gate int tz_dsttime; /* type of dst correction */ 817c478bd9Sstevel@tonic-gate }; 827c478bd9Sstevel@tonic-gate 837c478bd9Sstevel@tonic-gate #endif /* _ASM */ 847c478bd9Sstevel@tonic-gate #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 857c478bd9Sstevel@tonic-gate 867c478bd9Sstevel@tonic-gate #ifdef __cplusplus 877c478bd9Sstevel@tonic-gate } 887c478bd9Sstevel@tonic-gate #endif 897c478bd9Sstevel@tonic-gate 907c478bd9Sstevel@tonic-gate /* 917c478bd9Sstevel@tonic-gate * Needed for longlong_t type. Placement of this due to <sys/types.h> 927c478bd9Sstevel@tonic-gate * including <sys/select.h> which relies on the presense of the itimerval 937c478bd9Sstevel@tonic-gate * structure. 947c478bd9Sstevel@tonic-gate */ 957c478bd9Sstevel@tonic-gate #ifndef _ASM 967c478bd9Sstevel@tonic-gate #include <sys/types.h> 977c478bd9Sstevel@tonic-gate #endif /* _ASM */ 987c478bd9Sstevel@tonic-gate 997c478bd9Sstevel@tonic-gate #ifdef __cplusplus 1007c478bd9Sstevel@tonic-gate extern "C" { 1017c478bd9Sstevel@tonic-gate #endif 1027c478bd9Sstevel@tonic-gate 1037c478bd9Sstevel@tonic-gate #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 1047c478bd9Sstevel@tonic-gate 1057c478bd9Sstevel@tonic-gate #define DST_NONE 0 /* not on dst */ 1067c478bd9Sstevel@tonic-gate #define DST_USA 1 /* USA style dst */ 1077c478bd9Sstevel@tonic-gate #define DST_AUST 2 /* Australian style dst */ 1087c478bd9Sstevel@tonic-gate #define DST_WET 3 /* Western European dst */ 1097c478bd9Sstevel@tonic-gate #define DST_MET 4 /* Middle European dst */ 1107c478bd9Sstevel@tonic-gate #define DST_EET 5 /* Eastern European dst */ 1117c478bd9Sstevel@tonic-gate #define DST_CAN 6 /* Canada */ 1127c478bd9Sstevel@tonic-gate #define DST_GB 7 /* Great Britain and Eire */ 1137c478bd9Sstevel@tonic-gate #define DST_RUM 8 /* Rumania */ 1147c478bd9Sstevel@tonic-gate #define DST_TUR 9 /* Turkey */ 1157c478bd9Sstevel@tonic-gate #define DST_AUSTALT 10 /* Australian style with shift in 1986 */ 1167c478bd9Sstevel@tonic-gate 1177c478bd9Sstevel@tonic-gate /* 1187c478bd9Sstevel@tonic-gate * Operations on timevals. 1197c478bd9Sstevel@tonic-gate */ 1207c478bd9Sstevel@tonic-gate #define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec) 1217c478bd9Sstevel@tonic-gate #define timercmp(tvp, uvp, cmp) \ 1227c478bd9Sstevel@tonic-gate (((tvp)->tv_sec == (uvp)->tv_sec) ? \ 1237c478bd9Sstevel@tonic-gate /* CSTYLED */ \ 1247c478bd9Sstevel@tonic-gate ((tvp)->tv_usec cmp (uvp)->tv_usec) : \ 1257c478bd9Sstevel@tonic-gate /* CSTYLED */ \ 1267c478bd9Sstevel@tonic-gate ((tvp)->tv_sec cmp (uvp)->tv_sec)) 1277c478bd9Sstevel@tonic-gate 1287c478bd9Sstevel@tonic-gate #define timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0 1297c478bd9Sstevel@tonic-gate 1307c478bd9Sstevel@tonic-gate #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 1317c478bd9Sstevel@tonic-gate 1327c478bd9Sstevel@tonic-gate #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 1337c478bd9Sstevel@tonic-gate /* 1347c478bd9Sstevel@tonic-gate * Names of the interval timers, and structure 1357c478bd9Sstevel@tonic-gate * defining a timer setting. 1367c478bd9Sstevel@tonic-gate */ 1377c478bd9Sstevel@tonic-gate #define ITIMER_REAL 0 /* Decrements in real time */ 1387c478bd9Sstevel@tonic-gate #define ITIMER_VIRTUAL 1 /* Decrements in process virtual time */ 1397c478bd9Sstevel@tonic-gate #define ITIMER_PROF 2 /* Decrements both in process virtual */ 1407c478bd9Sstevel@tonic-gate /* time and when system is running on */ 1417c478bd9Sstevel@tonic-gate /* behalf of the process. */ 1427c478bd9Sstevel@tonic-gate #define ITIMER_REALPROF 3 /* Decrements in real time for real- */ 1437c478bd9Sstevel@tonic-gate /* time profiling of multithreaded */ 1447c478bd9Sstevel@tonic-gate /* programs. */ 1457c478bd9Sstevel@tonic-gate 1467c478bd9Sstevel@tonic-gate #ifndef _ASM 1477c478bd9Sstevel@tonic-gate struct itimerval { 1487c478bd9Sstevel@tonic-gate struct timeval it_interval; /* timer interval */ 1497c478bd9Sstevel@tonic-gate struct timeval it_value; /* current value */ 1507c478bd9Sstevel@tonic-gate }; 1517c478bd9Sstevel@tonic-gate 1527c478bd9Sstevel@tonic-gate #if defined(_SYSCALL32) 1537c478bd9Sstevel@tonic-gate 1547c478bd9Sstevel@tonic-gate struct itimerval32 { 1557c478bd9Sstevel@tonic-gate struct timeval32 it_interval; 1567c478bd9Sstevel@tonic-gate struct timeval32 it_value; 1577c478bd9Sstevel@tonic-gate }; 1587c478bd9Sstevel@tonic-gate 1597c478bd9Sstevel@tonic-gate #define ITIMERVAL32_TO_ITIMERVAL(itv, itv32) { \ 1607c478bd9Sstevel@tonic-gate TIMEVAL32_TO_TIMEVAL(&(itv)->it_interval, &(itv32)->it_interval); \ 1617c478bd9Sstevel@tonic-gate TIMEVAL32_TO_TIMEVAL(&(itv)->it_value, &(itv32)->it_value); \ 1627c478bd9Sstevel@tonic-gate } 1637c478bd9Sstevel@tonic-gate 1647c478bd9Sstevel@tonic-gate #define ITIMERVAL_TO_ITIMERVAL32(itv32, itv) { \ 1657c478bd9Sstevel@tonic-gate TIMEVAL_TO_TIMEVAL32(&(itv32)->it_interval, &(itv)->it_interval); \ 1667c478bd9Sstevel@tonic-gate TIMEVAL_TO_TIMEVAL32(&(itv32)->it_value, &(itv)->it_value); \ 1677c478bd9Sstevel@tonic-gate } 1687c478bd9Sstevel@tonic-gate 1697c478bd9Sstevel@tonic-gate #define ITIMERVAL_OVERFLOW(itv) \ 1707c478bd9Sstevel@tonic-gate (TIMEVAL_OVERFLOW(&(itv)->it_interval) || \ 1717c478bd9Sstevel@tonic-gate TIMEVAL_OVERFLOW(&(itv)->it_value)) 1727c478bd9Sstevel@tonic-gate 1737c478bd9Sstevel@tonic-gate #endif /* _SYSCALL32 */ 1747c478bd9Sstevel@tonic-gate #endif /* _ASM */ 1757c478bd9Sstevel@tonic-gate #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) ... */ 1767c478bd9Sstevel@tonic-gate 1777c478bd9Sstevel@tonic-gate 1787c478bd9Sstevel@tonic-gate #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 1797c478bd9Sstevel@tonic-gate /* 1807c478bd9Sstevel@tonic-gate * Definitions for commonly used resolutions. 1817c478bd9Sstevel@tonic-gate */ 1827c478bd9Sstevel@tonic-gate #define SEC 1 1837c478bd9Sstevel@tonic-gate #define MILLISEC 1000 1847c478bd9Sstevel@tonic-gate #define MICROSEC 1000000 1857c478bd9Sstevel@tonic-gate #define NANOSEC 1000000000 1867c478bd9Sstevel@tonic-gate 1877c478bd9Sstevel@tonic-gate #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 1887c478bd9Sstevel@tonic-gate 1897c478bd9Sstevel@tonic-gate #ifndef _ASM 1907c478bd9Sstevel@tonic-gate 1917c478bd9Sstevel@tonic-gate /* 1927c478bd9Sstevel@tonic-gate * Time expressed as a 64-bit nanosecond counter. 1937c478bd9Sstevel@tonic-gate */ 1947c478bd9Sstevel@tonic-gate typedef longlong_t hrtime_t; 1957c478bd9Sstevel@tonic-gate 1967c478bd9Sstevel@tonic-gate #ifdef _KERNEL 1977c478bd9Sstevel@tonic-gate 1987c478bd9Sstevel@tonic-gate #include <sys/time_impl.h> 1997c478bd9Sstevel@tonic-gate #include <sys/mutex.h> 2007c478bd9Sstevel@tonic-gate 2017c478bd9Sstevel@tonic-gate extern int tick_per_msec; /* clock ticks per millisecond (may be zero) */ 2027c478bd9Sstevel@tonic-gate extern int msec_per_tick; /* milliseconds per clock tick (may be zero) */ 2037c478bd9Sstevel@tonic-gate extern int usec_per_tick; /* microseconds per clock tick */ 2047c478bd9Sstevel@tonic-gate extern int nsec_per_tick; /* nanoseconds per clock tick */ 2057c478bd9Sstevel@tonic-gate 2067c478bd9Sstevel@tonic-gate /* 2077c478bd9Sstevel@tonic-gate * Macros to convert from common units of time (sec, msec, usec, nsec, 2087c478bd9Sstevel@tonic-gate * timeval, timestruc) to clock ticks and vice versa. 2097c478bd9Sstevel@tonic-gate */ 2107c478bd9Sstevel@tonic-gate #define TICK_TO_SEC(tick) ((tick) / hz) 2117c478bd9Sstevel@tonic-gate #define SEC_TO_TICK(sec) ((sec) * hz) 2127c478bd9Sstevel@tonic-gate 2137c478bd9Sstevel@tonic-gate #define TICK_TO_MSEC(tick) \ 2147c478bd9Sstevel@tonic-gate (msec_per_tick ? (tick) * msec_per_tick : (tick) / tick_per_msec) 2157c478bd9Sstevel@tonic-gate #define MSEC_TO_TICK(msec) \ 2167c478bd9Sstevel@tonic-gate (msec_per_tick ? (msec) / msec_per_tick : (msec) * tick_per_msec) 2177c478bd9Sstevel@tonic-gate #define MSEC_TO_TICK_ROUNDUP(msec) \ 2187c478bd9Sstevel@tonic-gate (msec_per_tick ? \ 2197c478bd9Sstevel@tonic-gate ((msec) == 0 ? 0 : ((msec) - 1) / msec_per_tick + 1) : \ 2207c478bd9Sstevel@tonic-gate (msec) * tick_per_msec) 2217c478bd9Sstevel@tonic-gate 2227c478bd9Sstevel@tonic-gate #define TICK_TO_USEC(tick) ((tick) * usec_per_tick) 2237c478bd9Sstevel@tonic-gate #define USEC_TO_TICK(usec) ((usec) / usec_per_tick) 2247c478bd9Sstevel@tonic-gate #define USEC_TO_TICK_ROUNDUP(usec) \ 2257c478bd9Sstevel@tonic-gate ((usec) == 0 ? 0 : USEC_TO_TICK((usec) - 1) + 1) 2267c478bd9Sstevel@tonic-gate 2277c478bd9Sstevel@tonic-gate #define TICK_TO_NSEC(tick) ((tick) * nsec_per_tick) 2287c478bd9Sstevel@tonic-gate #define NSEC_TO_TICK(nsec) ((nsec) / nsec_per_tick) 2297c478bd9Sstevel@tonic-gate #define NSEC_TO_TICK_ROUNDUP(nsec) \ 2307c478bd9Sstevel@tonic-gate ((nsec) == 0 ? 0 : NSEC_TO_TICK((nsec) - 1) + 1) 2317c478bd9Sstevel@tonic-gate 2327c478bd9Sstevel@tonic-gate #define TICK_TO_TIMEVAL(tick, tvp) { \ 2337c478bd9Sstevel@tonic-gate clock_t __tmptck = (tick); \ 2347c478bd9Sstevel@tonic-gate (tvp)->tv_sec = TICK_TO_SEC(__tmptck); \ 2357c478bd9Sstevel@tonic-gate (tvp)->tv_usec = TICK_TO_USEC(__tmptck - SEC_TO_TICK((tvp)->tv_sec)); \ 2367c478bd9Sstevel@tonic-gate } 2377c478bd9Sstevel@tonic-gate 2387c478bd9Sstevel@tonic-gate #define TICK_TO_TIMEVAL32(tick, tvp) { \ 2397c478bd9Sstevel@tonic-gate clock_t __tmptck = (tick); \ 2407c478bd9Sstevel@tonic-gate time_t __tmptm = TICK_TO_SEC(__tmptck); \ 2417c478bd9Sstevel@tonic-gate (tvp)->tv_sec = (time32_t)__tmptm; \ 2427c478bd9Sstevel@tonic-gate (tvp)->tv_usec = TICK_TO_USEC(__tmptck - SEC_TO_TICK(__tmptm)); \ 2437c478bd9Sstevel@tonic-gate } 2447c478bd9Sstevel@tonic-gate 2457c478bd9Sstevel@tonic-gate #define TICK_TO_TIMESTRUC(tick, tsp) { \ 2467c478bd9Sstevel@tonic-gate clock_t __tmptck = (tick); \ 2477c478bd9Sstevel@tonic-gate (tsp)->tv_sec = TICK_TO_SEC(__tmptck); \ 2487c478bd9Sstevel@tonic-gate (tsp)->tv_nsec = TICK_TO_NSEC(__tmptck - SEC_TO_TICK((tsp)->tv_sec)); \ 2497c478bd9Sstevel@tonic-gate } 2507c478bd9Sstevel@tonic-gate 2517c478bd9Sstevel@tonic-gate #define TICK_TO_TIMESTRUC32(tick, tsp) { \ 2527c478bd9Sstevel@tonic-gate clock_t __tmptck = (tick); \ 2537c478bd9Sstevel@tonic-gate time_t __tmptm = TICK_TO_SEC(__tmptck); \ 2547c478bd9Sstevel@tonic-gate (tsp)->tv_sec = (time32_t)__tmptm; \ 2557c478bd9Sstevel@tonic-gate (tsp)->tv_nsec = TICK_TO_NSEC(__tmptck - SEC_TO_TICK(__tmptm)); \ 2567c478bd9Sstevel@tonic-gate } 2577c478bd9Sstevel@tonic-gate 2587c478bd9Sstevel@tonic-gate #define TIMEVAL_TO_TICK(tvp) \ 2597c478bd9Sstevel@tonic-gate (SEC_TO_TICK((tvp)->tv_sec) + USEC_TO_TICK((tvp)->tv_usec)) 2607c478bd9Sstevel@tonic-gate 2617c478bd9Sstevel@tonic-gate #define TIMESTRUC_TO_TICK(tsp) \ 2627c478bd9Sstevel@tonic-gate (SEC_TO_TICK((tsp)->tv_sec) + NSEC_TO_TICK((tsp)->tv_nsec)) 2637c478bd9Sstevel@tonic-gate 2647c478bd9Sstevel@tonic-gate typedef struct todinfo { 2657c478bd9Sstevel@tonic-gate int tod_sec; /* seconds 0-59 */ 2667c478bd9Sstevel@tonic-gate int tod_min; /* minutes 0-59 */ 2677c478bd9Sstevel@tonic-gate int tod_hour; /* hours 0-23 */ 2687c478bd9Sstevel@tonic-gate int tod_dow; /* day of week 1-7 */ 2697c478bd9Sstevel@tonic-gate int tod_day; /* day of month 1-31 */ 2707c478bd9Sstevel@tonic-gate int tod_month; /* month 1-12 */ 2717c478bd9Sstevel@tonic-gate int tod_year; /* year 70+ */ 2727c478bd9Sstevel@tonic-gate } todinfo_t; 2737c478bd9Sstevel@tonic-gate 2747c478bd9Sstevel@tonic-gate extern int64_t timedelta; 2757c478bd9Sstevel@tonic-gate extern int timechanged; 2767c478bd9Sstevel@tonic-gate extern int tod_needsync; 2777c478bd9Sstevel@tonic-gate extern kmutex_t tod_lock; 2787c478bd9Sstevel@tonic-gate extern timestruc_t hrestime; 2797c478bd9Sstevel@tonic-gate extern hrtime_t hres_last_tick; 2807c478bd9Sstevel@tonic-gate extern int64_t hrestime_adj; 2817c478bd9Sstevel@tonic-gate extern uint_t adj_shift; 2827c478bd9Sstevel@tonic-gate 2837c478bd9Sstevel@tonic-gate extern timestruc_t tod_get(void); 2847c478bd9Sstevel@tonic-gate extern void tod_set(timestruc_t); 2857c478bd9Sstevel@tonic-gate extern void set_hrestime(timestruc_t *); 2867c478bd9Sstevel@tonic-gate extern todinfo_t utc_to_tod(time_t); 2877c478bd9Sstevel@tonic-gate extern time_t tod_to_utc(todinfo_t); 2887c478bd9Sstevel@tonic-gate extern int hr_clock_lock(void); 2897c478bd9Sstevel@tonic-gate extern void hr_clock_unlock(int); 2907c478bd9Sstevel@tonic-gate extern hrtime_t gethrtime(void); 2917c478bd9Sstevel@tonic-gate extern hrtime_t gethrtime_unscaled(void); 2927c478bd9Sstevel@tonic-gate extern hrtime_t gethrtime_max(void); 2937c478bd9Sstevel@tonic-gate extern hrtime_t gethrtime_waitfree(void); 2947c478bd9Sstevel@tonic-gate extern void scalehrtime(hrtime_t *); 2957c478bd9Sstevel@tonic-gate extern uint64_t unscalehrtime(hrtime_t); 2967c478bd9Sstevel@tonic-gate extern void gethrestime(timespec_t *); 2977c478bd9Sstevel@tonic-gate extern time_t gethrestime_sec(void); 2987c478bd9Sstevel@tonic-gate extern void gethrestime_lasttick(timespec_t *); 2997c478bd9Sstevel@tonic-gate extern void hrt2ts(hrtime_t, timestruc_t *); 3007c478bd9Sstevel@tonic-gate extern hrtime_t ts2hrt(const timestruc_t *); 3017c478bd9Sstevel@tonic-gate extern void hrt2tv(hrtime_t, struct timeval *); 3027c478bd9Sstevel@tonic-gate extern hrtime_t tv2hrt(struct timeval *); 3037c478bd9Sstevel@tonic-gate extern int itimerfix(struct timeval *, int); 3047c478bd9Sstevel@tonic-gate extern int itimerdecr(struct itimerval *, int); 3057c478bd9Sstevel@tonic-gate extern void timevaladd(struct timeval *, struct timeval *); 3067c478bd9Sstevel@tonic-gate extern void timevalsub(struct timeval *, struct timeval *); 3077c478bd9Sstevel@tonic-gate extern void timevalfix(struct timeval *); 3087c478bd9Sstevel@tonic-gate extern void dtrace_hres_tick(void); 3097c478bd9Sstevel@tonic-gate 3107c478bd9Sstevel@tonic-gate #if defined(_SYSCALL32) 3117c478bd9Sstevel@tonic-gate extern void hrt2ts32(hrtime_t, timestruc32_t *); 3127c478bd9Sstevel@tonic-gate #endif 3137c478bd9Sstevel@tonic-gate 3147c478bd9Sstevel@tonic-gate #endif /* _KERNEL */ 3157c478bd9Sstevel@tonic-gate 3167c478bd9Sstevel@tonic-gate #if !defined(_KERNEL) && !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 3177c478bd9Sstevel@tonic-gate #if defined(__STDC__) 3187c478bd9Sstevel@tonic-gate int adjtime(struct timeval *, struct timeval *); 3197c478bd9Sstevel@tonic-gate #else 3207c478bd9Sstevel@tonic-gate int adjtime(); 3217c478bd9Sstevel@tonic-gate #endif 3227c478bd9Sstevel@tonic-gate #endif /* !defined(_KERNEL) && !defined(__XOPEN_OR_POSIX) ... */ 3237c478bd9Sstevel@tonic-gate 3247c478bd9Sstevel@tonic-gate #if !defined(_KERNEL) && !defined(__XOPEN_OR_POSIX) || \ 3257c478bd9Sstevel@tonic-gate defined(_ATFILE_SOURCE) || defined(__EXTENSIONS__) 3267c478bd9Sstevel@tonic-gate #if defined(__STDC__) 3277c478bd9Sstevel@tonic-gate int futimesat(int, const char *, const struct timeval *); 3287c478bd9Sstevel@tonic-gate #else 3297c478bd9Sstevel@tonic-gate int futimesat(); 3307c478bd9Sstevel@tonic-gate #endif /* defined(__STDC__) */ 3317c478bd9Sstevel@tonic-gate #endif /* defined(__ATFILE_SOURCE) */ 3327c478bd9Sstevel@tonic-gate 3337c478bd9Sstevel@tonic-gate #if !defined(_KERNEL) && !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || \ 3347c478bd9Sstevel@tonic-gate defined(__EXTENSIONS__) 3357c478bd9Sstevel@tonic-gate 3367c478bd9Sstevel@tonic-gate #if defined(__STDC__) 3377c478bd9Sstevel@tonic-gate 3387c478bd9Sstevel@tonic-gate int getitimer(int, struct itimerval *); 3397c478bd9Sstevel@tonic-gate int utimes(const char *, const struct timeval *); 3407c478bd9Sstevel@tonic-gate #if defined(_XPG4_2) 3417c478bd9Sstevel@tonic-gate int setitimer(int, const struct itimerval *_RESTRICT_KYWD, 3427c478bd9Sstevel@tonic-gate struct itimerval *_RESTRICT_KYWD); 3437c478bd9Sstevel@tonic-gate #else 3447c478bd9Sstevel@tonic-gate int setitimer(int, struct itimerval *_RESTRICT_KYWD, 3457c478bd9Sstevel@tonic-gate struct itimerval *_RESTRICT_KYWD); 3467c478bd9Sstevel@tonic-gate #endif /* defined(_XPG2_2) */ 3477c478bd9Sstevel@tonic-gate 3487c478bd9Sstevel@tonic-gate #else /* __STDC__ */ 3497c478bd9Sstevel@tonic-gate 3507c478bd9Sstevel@tonic-gate int gettimer(); 3517c478bd9Sstevel@tonic-gate int settimer(); 3527c478bd9Sstevel@tonic-gate int utimes(); 3537c478bd9Sstevel@tonic-gate #endif /* __STDC__ */ 3547c478bd9Sstevel@tonic-gate #endif /* !defined(_KERNEL) ... defined(_XPG4_2) */ 3557c478bd9Sstevel@tonic-gate 3567c478bd9Sstevel@tonic-gate /* 3577c478bd9Sstevel@tonic-gate * gettimeofday() and settimeofday() were included in SVr4 due to their 3587c478bd9Sstevel@tonic-gate * common use in BSD based applications. They were to be included exactly 3597c478bd9Sstevel@tonic-gate * as in BSD, with two parameters. However, AT&T/USL noted that the second 3607c478bd9Sstevel@tonic-gate * parameter was unused and deleted it, thereby making a routine included 3617c478bd9Sstevel@tonic-gate * for compatibility, incompatible. 3627c478bd9Sstevel@tonic-gate * 3637c478bd9Sstevel@tonic-gate * XSH4.2 (spec 1170) defines gettimeofday and settimeofday to have two 3647c478bd9Sstevel@tonic-gate * parameters. 3657c478bd9Sstevel@tonic-gate * 3667c478bd9Sstevel@tonic-gate * This has caused general disagreement in the application community as to 3677c478bd9Sstevel@tonic-gate * the syntax of these routines. Solaris defaults to the XSH4.2 definition. 3687c478bd9Sstevel@tonic-gate * The flag _SVID_GETTOD may be used to force the SVID version. 3697c478bd9Sstevel@tonic-gate */ 3707c478bd9Sstevel@tonic-gate #if !defined(_KERNEL) && !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 3717c478bd9Sstevel@tonic-gate 3727c478bd9Sstevel@tonic-gate #if defined(__STDC__) 3737c478bd9Sstevel@tonic-gate #if defined(_SVID_GETTOD) 3747c478bd9Sstevel@tonic-gate int settimeofday(struct timeval *); 3757c478bd9Sstevel@tonic-gate #else 3767c478bd9Sstevel@tonic-gate int settimeofday(struct timeval *, void *); 3777c478bd9Sstevel@tonic-gate #endif 3787c478bd9Sstevel@tonic-gate hrtime_t gethrtime(void); 3797c478bd9Sstevel@tonic-gate hrtime_t gethrvtime(void); 3807c478bd9Sstevel@tonic-gate #else /* __STDC__ */ 3817c478bd9Sstevel@tonic-gate int settimeofday(); 3827c478bd9Sstevel@tonic-gate hrtime_t gethrtime(); 3837c478bd9Sstevel@tonic-gate hrtime_t gethrvtime(); 3847c478bd9Sstevel@tonic-gate #endif /* __STDC__ */ 3857c478bd9Sstevel@tonic-gate 3867c478bd9Sstevel@tonic-gate #endif /* !(defined _KERNEL) && !defined(__XOPEN_OR_POSIX) ... */ 3877c478bd9Sstevel@tonic-gate 3887c478bd9Sstevel@tonic-gate #if !defined(_KERNEL) && !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || \ 3897c478bd9Sstevel@tonic-gate defined(__EXTENSIONS__) 3907c478bd9Sstevel@tonic-gate 3917c478bd9Sstevel@tonic-gate #if defined(__STDC__) 3927c478bd9Sstevel@tonic-gate #if defined(_SVID_GETTOD) 3937c478bd9Sstevel@tonic-gate int gettimeofday(struct timeval *); 3947c478bd9Sstevel@tonic-gate #else 3957c478bd9Sstevel@tonic-gate int gettimeofday(struct timeval *_RESTRICT_KYWD, void *_RESTRICT_KYWD); 3967c478bd9Sstevel@tonic-gate #endif 3977c478bd9Sstevel@tonic-gate #else /* __STDC__ */ 3987c478bd9Sstevel@tonic-gate int gettimeofday(); 3997c478bd9Sstevel@tonic-gate #endif /* __STDC__ */ 4007c478bd9Sstevel@tonic-gate 4017c478bd9Sstevel@tonic-gate #endif /* !defined(_KERNEL) && !defined(__XOPEN_OR_POSIX) ... */ 4027c478bd9Sstevel@tonic-gate 4037c478bd9Sstevel@tonic-gate /* 4047c478bd9Sstevel@tonic-gate * The inclusion of <time.h> is historical and was added for 4057c478bd9Sstevel@tonic-gate * backward compatibility in delta 1.2 when a number of definitions 4067c478bd9Sstevel@tonic-gate * were moved out of <sys/time.h>. More recently, the timespec and 4077c478bd9Sstevel@tonic-gate * itimerspec structure definitions, along with the _CLOCK_*, CLOCK_*, 4087c478bd9Sstevel@tonic-gate * _TIMER_*, and TIMER_* symbols were moved to <sys/time_impl.h>, 4097c478bd9Sstevel@tonic-gate * which is now included by <time.h>. This change was due to POSIX 4107c478bd9Sstevel@tonic-gate * 1003.1b-1993 and X/Open UNIX 98 requirements. For non-POSIX and 4117c478bd9Sstevel@tonic-gate * non-X/Open applications, including this header will still make 4127c478bd9Sstevel@tonic-gate * visible these definitions. 4137c478bd9Sstevel@tonic-gate */ 414*ae115bc7Smrj #if !defined(_BOOT) && !defined(_KERNEL) && \ 415*ae115bc7Smrj !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 4167c478bd9Sstevel@tonic-gate #include <time.h> 4177c478bd9Sstevel@tonic-gate #endif 4187c478bd9Sstevel@tonic-gate 4197c478bd9Sstevel@tonic-gate /* 4207c478bd9Sstevel@tonic-gate * The inclusion of <sys/select.h> is needed for the FD_CLR, 4217c478bd9Sstevel@tonic-gate * FD_ISSET, FD_SET, and FD_SETSIZE macros as well as the 4227c478bd9Sstevel@tonic-gate * select() prototype defined in the XOpen specifications 4237c478bd9Sstevel@tonic-gate * beginning with XSH4v2. Placement required after definition 4247c478bd9Sstevel@tonic-gate * for itimerval. 4257c478bd9Sstevel@tonic-gate */ 4267c478bd9Sstevel@tonic-gate #if !defined(_KERNEL) && !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || \ 4277c478bd9Sstevel@tonic-gate defined(__EXTENSIONS__) 4287c478bd9Sstevel@tonic-gate #include <sys/select.h> 4297c478bd9Sstevel@tonic-gate #endif 4307c478bd9Sstevel@tonic-gate 4317c478bd9Sstevel@tonic-gate #endif /* _ASM */ 4327c478bd9Sstevel@tonic-gate 4337c478bd9Sstevel@tonic-gate #ifdef __cplusplus 4347c478bd9Sstevel@tonic-gate } 4357c478bd9Sstevel@tonic-gate #endif 4367c478bd9Sstevel@tonic-gate 4377c478bd9Sstevel@tonic-gate #endif /* _SYS_TIME_H */ 438