1 0 stevel /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 2 0 stevel /* All Rights Reserved */ 3 0 stevel 4 0 stevel 5 0 stevel /* 6 6860 danmcd * Copyright (c) 1982, 1986, 1993 Regents of the University of California. 7 0 stevel * All rights reserved. The Berkeley software License Agreement 8 0 stevel * specifies the terms and conditions for redistribution. 9 0 stevel */ 10 0 stevel 11 0 stevel /* 12 10797 Eric * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 13 0 stevel * Use is subject to license terms. 14 0 stevel */ 15 0 stevel 16 0 stevel #ifndef _SYS_TIME_H 17 0 stevel #define _SYS_TIME_H 18 0 stevel 19 0 stevel #include <sys/feature_tests.h> 20 0 stevel 21 0 stevel /* 22 0 stevel * Structure returned by gettimeofday(2) system call, 23 0 stevel * and used in other calls. 24 0 stevel */ 25 0 stevel 26 0 stevel #ifdef __cplusplus 27 0 stevel extern "C" { 28 0 stevel #endif 29 0 stevel 30 0 stevel #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || \ 31 0 stevel defined(__EXTENSIONS__) 32 0 stevel #ifndef _ASM 33 0 stevel 34 0 stevel #if !defined(_TIME_T) || __cplusplus >= 199711L 35 0 stevel #define _TIME_T 36 0 stevel typedef long time_t; /* time of day in seconds */ 37 0 stevel #endif /* _TIME_T */ 38 0 stevel 39 0 stevel #ifndef _SUSECONDS_T 40 0 stevel #define _SUSECONDS_T 41 0 stevel typedef long suseconds_t; /* signed # of microseconds */ 42 0 stevel #endif /* _SUSECONDS_T */ 43 0 stevel 44 0 stevel struct timeval { 45 0 stevel time_t tv_sec; /* seconds */ 46 0 stevel suseconds_t tv_usec; /* and microseconds */ 47 0 stevel }; 48 0 stevel 49 0 stevel #if defined(_SYSCALL32) 50 0 stevel 51 0 stevel #include <sys/types32.h> 52 0 stevel 53 0 stevel #define TIMEVAL32_TO_TIMEVAL(tv, tv32) { \ 54 0 stevel (tv)->tv_sec = (time_t)(tv32)->tv_sec; \ 55 0 stevel (tv)->tv_usec = (tv32)->tv_usec; \ 56 0 stevel } 57 0 stevel 58 0 stevel #define TIMEVAL_TO_TIMEVAL32(tv32, tv) { \ 59 0 stevel (tv32)->tv_sec = (time32_t)(tv)->tv_sec; \ 60 0 stevel (tv32)->tv_usec = (tv)->tv_usec; \ 61 0 stevel } 62 0 stevel 63 0 stevel #define TIME32_MAX INT32_MAX 64 0 stevel #define TIME32_MIN INT32_MIN 65 0 stevel 66 0 stevel #define TIMEVAL_OVERFLOW(tv) \ 67 0 stevel ((tv)->tv_sec < TIME32_MIN || (tv)->tv_sec > TIME32_MAX) 68 0 stevel 69 0 stevel #endif /* _SYSCALL32 || _KERNEL */ 70 0 stevel 71 0 stevel #endif /* _ASM */ 72 0 stevel #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) ... */ 73 0 stevel 74 0 stevel #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 75 0 stevel #ifndef _ASM 76 0 stevel struct timezone { 77 0 stevel int tz_minuteswest; /* minutes west of Greenwich */ 78 0 stevel int tz_dsttime; /* type of dst correction */ 79 0 stevel }; 80 0 stevel 81 0 stevel #endif /* _ASM */ 82 0 stevel #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 83 0 stevel 84 0 stevel #ifdef __cplusplus 85 0 stevel } 86 0 stevel #endif 87 0 stevel 88 0 stevel /* 89 0 stevel * Needed for longlong_t type. Placement of this due to <sys/types.h> 90 0 stevel * including <sys/select.h> which relies on the presense of the itimerval 91 0 stevel * structure. 92 0 stevel */ 93 0 stevel #ifndef _ASM 94 0 stevel #include <sys/types.h> 95 0 stevel #endif /* _ASM */ 96 0 stevel 97 0 stevel #ifdef __cplusplus 98 0 stevel extern "C" { 99 0 stevel #endif 100 0 stevel 101 0 stevel #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 102 0 stevel 103 0 stevel #define DST_NONE 0 /* not on dst */ 104 0 stevel #define DST_USA 1 /* USA style dst */ 105 0 stevel #define DST_AUST 2 /* Australian style dst */ 106 0 stevel #define DST_WET 3 /* Western European dst */ 107 0 stevel #define DST_MET 4 /* Middle European dst */ 108 0 stevel #define DST_EET 5 /* Eastern European dst */ 109 0 stevel #define DST_CAN 6 /* Canada */ 110 0 stevel #define DST_GB 7 /* Great Britain and Eire */ 111 0 stevel #define DST_RUM 8 /* Rumania */ 112 0 stevel #define DST_TUR 9 /* Turkey */ 113 0 stevel #define DST_AUSTALT 10 /* Australian style with shift in 1986 */ 114 0 stevel 115 0 stevel /* 116 0 stevel * Operations on timevals. 117 0 stevel */ 118 0 stevel #define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec) 119 0 stevel #define timercmp(tvp, uvp, cmp) \ 120 0 stevel (((tvp)->tv_sec == (uvp)->tv_sec) ? \ 121 0 stevel /* CSTYLED */ \ 122 0 stevel ((tvp)->tv_usec cmp (uvp)->tv_usec) : \ 123 0 stevel /* CSTYLED */ \ 124 0 stevel ((tvp)->tv_sec cmp (uvp)->tv_sec)) 125 0 stevel 126 0 stevel #define timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0 127 6860 danmcd 128 6860 danmcd #ifdef __lint 129 6860 danmcd /* 130 6860 danmcd * Make innocuous, lint-happy versions until do {} while (0) is acknowleged as 131 6860 danmcd * lint-safe. If the compiler could know that we always make tv_usec < 1000000 132 6860 danmcd * we wouldn't need a special linted version. 133 6860 danmcd */ 134 6860 danmcd #define timeradd(tvp, uvp, vvp) \ 135 6860 danmcd do \ 136 6860 danmcd { \ 137 6860 danmcd (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \ 138 6860 danmcd (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \ 139 6860 danmcd if ((vvp)->tv_usec >= 1000000) \ 140 6860 danmcd { \ 141 6860 danmcd (vvp)->tv_sec++; \ 142 6860 danmcd (vvp)->tv_usec -= 1000000; \ 143 6860 danmcd } \ 144 6860 danmcd } while ((vvp)->tv_usec >= 1000000) 145 6860 danmcd #define timersub(tvp, uvp, vvp) \ 146 6860 danmcd do \ 147 6860 danmcd { \ 148 6860 danmcd (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \ 149 6860 danmcd (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \ 150 6860 danmcd if ((vvp)->tv_usec < 0) \ 151 6860 danmcd { \ 152 6860 danmcd (vvp)->tv_sec--; \ 153 6860 danmcd (vvp)->tv_usec += 1000000; \ 154 6860 danmcd } \ 155 6860 danmcd } while ((vvp)->tv_usec >= 1000000) 156 6860 danmcd #else 157 6860 danmcd #define timeradd(tvp, uvp, vvp) \ 158 6860 danmcd do \ 159 6860 danmcd { \ 160 6860 danmcd (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \ 161 6860 danmcd (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \ 162 6860 danmcd if ((vvp)->tv_usec >= 1000000) \ 163 6860 danmcd { \ 164 6860 danmcd (vvp)->tv_sec++; \ 165 6860 danmcd (vvp)->tv_usec -= 1000000; \ 166 6860 danmcd } \ 167 6860 danmcd } while (0) 168 6860 danmcd 169 6860 danmcd #define timersub(tvp, uvp, vvp) \ 170 6860 danmcd do \ 171 6860 danmcd { \ 172 6860 danmcd (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \ 173 6860 danmcd (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \ 174 6860 danmcd if ((vvp)->tv_usec < 0) \ 175 6860 danmcd { \ 176 6860 danmcd (vvp)->tv_sec--; \ 177 6860 danmcd (vvp)->tv_usec += 1000000; \ 178 6860 danmcd } \ 179 6860 danmcd } while (0) 180 6860 danmcd #endif /* __lint */ 181 0 stevel 182 0 stevel #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 183 0 stevel 184 0 stevel #if !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || defined(__EXTENSIONS__) 185 0 stevel /* 186 0 stevel * Names of the interval timers, and structure 187 0 stevel * defining a timer setting. 188 0 stevel */ 189 0 stevel #define ITIMER_REAL 0 /* Decrements in real time */ 190 0 stevel #define ITIMER_VIRTUAL 1 /* Decrements in process virtual time */ 191 0 stevel #define ITIMER_PROF 2 /* Decrements both in process virtual */ 192 0 stevel /* time and when system is running on */ 193 0 stevel /* behalf of the process. */ 194 0 stevel #define ITIMER_REALPROF 3 /* Decrements in real time for real- */ 195 0 stevel /* time profiling of multithreaded */ 196 0 stevel /* programs. */ 197 0 stevel 198 0 stevel #ifndef _ASM 199 0 stevel struct itimerval { 200 0 stevel struct timeval it_interval; /* timer interval */ 201 0 stevel struct timeval it_value; /* current value */ 202 0 stevel }; 203 0 stevel 204 0 stevel #if defined(_SYSCALL32) 205 0 stevel 206 0 stevel struct itimerval32 { 207 0 stevel struct timeval32 it_interval; 208 0 stevel struct timeval32 it_value; 209 0 stevel }; 210 0 stevel 211 0 stevel #define ITIMERVAL32_TO_ITIMERVAL(itv, itv32) { \ 212 0 stevel TIMEVAL32_TO_TIMEVAL(&(itv)->it_interval, &(itv32)->it_interval); \ 213 0 stevel TIMEVAL32_TO_TIMEVAL(&(itv)->it_value, &(itv32)->it_value); \ 214 0 stevel } 215 0 stevel 216 0 stevel #define ITIMERVAL_TO_ITIMERVAL32(itv32, itv) { \ 217 0 stevel TIMEVAL_TO_TIMEVAL32(&(itv32)->it_interval, &(itv)->it_interval); \ 218 0 stevel TIMEVAL_TO_TIMEVAL32(&(itv32)->it_value, &(itv)->it_value); \ 219 0 stevel } 220 0 stevel 221 0 stevel #define ITIMERVAL_OVERFLOW(itv) \ 222 0 stevel (TIMEVAL_OVERFLOW(&(itv)->it_interval) || \ 223 0 stevel TIMEVAL_OVERFLOW(&(itv)->it_value)) 224 0 stevel 225 0 stevel #endif /* _SYSCALL32 */ 226 0 stevel #endif /* _ASM */ 227 0 stevel #endif /* !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) ... */ 228 0 stevel 229 0 stevel 230 0 stevel #if !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 231 0 stevel /* 232 0 stevel * Definitions for commonly used resolutions. 233 0 stevel */ 234 0 stevel #define SEC 1 235 0 stevel #define MILLISEC 1000 236 0 stevel #define MICROSEC 1000000 237 0 stevel #define NANOSEC 1000000000 238 0 stevel 239 0 stevel #endif /* !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) */ 240 0 stevel 241 0 stevel #ifndef _ASM 242 0 stevel 243 0 stevel /* 244 0 stevel * Time expressed as a 64-bit nanosecond counter. 245 0 stevel */ 246 0 stevel typedef longlong_t hrtime_t; 247 0 stevel 248 0 stevel #ifdef _KERNEL 249 0 stevel 250 0 stevel #include <sys/time_impl.h> 251 0 stevel #include <sys/mutex.h> 252 0 stevel 253 0 stevel extern int tick_per_msec; /* clock ticks per millisecond (may be zero) */ 254 0 stevel extern int msec_per_tick; /* milliseconds per clock tick (may be zero) */ 255 0 stevel extern int usec_per_tick; /* microseconds per clock tick */ 256 0 stevel extern int nsec_per_tick; /* nanoseconds per clock tick */ 257 0 stevel 258 0 stevel /* 259 0 stevel * Macros to convert from common units of time (sec, msec, usec, nsec, 260 0 stevel * timeval, timestruc) to clock ticks and vice versa. 261 0 stevel */ 262 0 stevel #define TICK_TO_SEC(tick) ((tick) / hz) 263 0 stevel #define SEC_TO_TICK(sec) ((sec) * hz) 264 0 stevel 265 0 stevel #define TICK_TO_MSEC(tick) \ 266 0 stevel (msec_per_tick ? (tick) * msec_per_tick : (tick) / tick_per_msec) 267 0 stevel #define MSEC_TO_TICK(msec) \ 268 0 stevel (msec_per_tick ? (msec) / msec_per_tick : (msec) * tick_per_msec) 269 0 stevel #define MSEC_TO_TICK_ROUNDUP(msec) \ 270 0 stevel (msec_per_tick ? \ 271 0 stevel ((msec) == 0 ? 0 : ((msec) - 1) / msec_per_tick + 1) : \ 272 0 stevel (msec) * tick_per_msec) 273 0 stevel 274 0 stevel #define TICK_TO_USEC(tick) ((tick) * usec_per_tick) 275 0 stevel #define USEC_TO_TICK(usec) ((usec) / usec_per_tick) 276 0 stevel #define USEC_TO_TICK_ROUNDUP(usec) \ 277 0 stevel ((usec) == 0 ? 0 : USEC_TO_TICK((usec) - 1) + 1) 278 0 stevel 279 8048 Madhavan #define TICK_TO_NSEC(tick) ((hrtime_t)(tick) * nsec_per_tick) 280 0 stevel #define NSEC_TO_TICK(nsec) ((nsec) / nsec_per_tick) 281 0 stevel #define NSEC_TO_TICK_ROUNDUP(nsec) \ 282 0 stevel ((nsec) == 0 ? 0 : NSEC_TO_TICK((nsec) - 1) + 1) 283 0 stevel 284 0 stevel #define TICK_TO_TIMEVAL(tick, tvp) { \ 285 0 stevel clock_t __tmptck = (tick); \ 286 0 stevel (tvp)->tv_sec = TICK_TO_SEC(__tmptck); \ 287 0 stevel (tvp)->tv_usec = TICK_TO_USEC(__tmptck - SEC_TO_TICK((tvp)->tv_sec)); \ 288 0 stevel } 289 0 stevel 290 0 stevel #define TICK_TO_TIMEVAL32(tick, tvp) { \ 291 0 stevel clock_t __tmptck = (tick); \ 292 0 stevel time_t __tmptm = TICK_TO_SEC(__tmptck); \ 293 0 stevel (tvp)->tv_sec = (time32_t)__tmptm; \ 294 0 stevel (tvp)->tv_usec = TICK_TO_USEC(__tmptck - SEC_TO_TICK(__tmptm)); \ 295 0 stevel } 296 0 stevel 297 0 stevel #define TICK_TO_TIMESTRUC(tick, tsp) { \ 298 0 stevel clock_t __tmptck = (tick); \ 299 0 stevel (tsp)->tv_sec = TICK_TO_SEC(__tmptck); \ 300 0 stevel (tsp)->tv_nsec = TICK_TO_NSEC(__tmptck - SEC_TO_TICK((tsp)->tv_sec)); \ 301 0 stevel } 302 0 stevel 303 0 stevel #define TICK_TO_TIMESTRUC32(tick, tsp) { \ 304 0 stevel clock_t __tmptck = (tick); \ 305 0 stevel time_t __tmptm = TICK_TO_SEC(__tmptck); \ 306 0 stevel (tsp)->tv_sec = (time32_t)__tmptm; \ 307 0 stevel (tsp)->tv_nsec = TICK_TO_NSEC(__tmptck - SEC_TO_TICK(__tmptm)); \ 308 0 stevel } 309 0 stevel 310 0 stevel #define TIMEVAL_TO_TICK(tvp) \ 311 0 stevel (SEC_TO_TICK((tvp)->tv_sec) + USEC_TO_TICK((tvp)->tv_usec)) 312 0 stevel 313 0 stevel #define TIMESTRUC_TO_TICK(tsp) \ 314 0 stevel (SEC_TO_TICK((tsp)->tv_sec) + NSEC_TO_TICK((tsp)->tv_nsec)) 315 0 stevel 316 0 stevel typedef struct todinfo { 317 0 stevel int tod_sec; /* seconds 0-59 */ 318 0 stevel int tod_min; /* minutes 0-59 */ 319 0 stevel int tod_hour; /* hours 0-23 */ 320 0 stevel int tod_dow; /* day of week 1-7 */ 321 0 stevel int tod_day; /* day of month 1-31 */ 322 0 stevel int tod_month; /* month 1-12 */ 323 0 stevel int tod_year; /* year 70+ */ 324 0 stevel } todinfo_t; 325 0 stevel 326 0 stevel extern int64_t timedelta; 327 4123 dm120769 extern int timechanged; 328 0 stevel extern int tod_needsync; 329 0 stevel extern kmutex_t tod_lock; 330 4551 sudheer extern volatile timestruc_t hrestime; 331 0 stevel extern hrtime_t hres_last_tick; 332 0 stevel extern int64_t hrestime_adj; 333 0 stevel extern uint_t adj_shift; 334 0 stevel 335 0 stevel extern timestruc_t tod_get(void); 336 0 stevel extern void tod_set(timestruc_t); 337 0 stevel extern void set_hrestime(timestruc_t *); 338 0 stevel extern todinfo_t utc_to_tod(time_t); 339 0 stevel extern time_t tod_to_utc(todinfo_t); 340 0 stevel extern int hr_clock_lock(void); 341 0 stevel extern void hr_clock_unlock(int); 342 0 stevel extern hrtime_t gethrtime(void); 343 0 stevel extern hrtime_t gethrtime_unscaled(void); 344 0 stevel extern hrtime_t gethrtime_max(void); 345 0 stevel extern hrtime_t gethrtime_waitfree(void); 346 0 stevel extern void scalehrtime(hrtime_t *); 347 10797 Eric extern uint64_t unscalehrtime(hrtime_t); 348 0 stevel extern void gethrestime(timespec_t *); 349 0 stevel extern time_t gethrestime_sec(void); 350 0 stevel extern void gethrestime_lasttick(timespec_t *); 351 0 stevel extern void hrt2ts(hrtime_t, timestruc_t *); 352 0 stevel extern hrtime_t ts2hrt(const timestruc_t *); 353 0 stevel extern void hrt2tv(hrtime_t, struct timeval *); 354 0 stevel extern hrtime_t tv2hrt(struct timeval *); 355 0 stevel extern int itimerfix(struct timeval *, int); 356 0 stevel extern int itimerdecr(struct itimerval *, int); 357 0 stevel extern void timevaladd(struct timeval *, struct timeval *); 358 0 stevel extern void timevalsub(struct timeval *, struct timeval *); 359 0 stevel extern void timevalfix(struct timeval *); 360 0 stevel extern void dtrace_hres_tick(void); 361 0 stevel 362 11066 rafael extern clock_t ddi_get_lbolt(void); 363 11066 rafael extern int64_t ddi_get_lbolt64(void); 364 11066 rafael 365 0 stevel #if defined(_SYSCALL32) 366 0 stevel extern void hrt2ts32(hrtime_t, timestruc32_t *); 367 0 stevel #endif 368 0 stevel 369 0 stevel #endif /* _KERNEL */ 370 0 stevel 371 0 stevel #if !defined(_KERNEL) && !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 372 0 stevel #if defined(__STDC__) 373 0 stevel int adjtime(struct timeval *, struct timeval *); 374 0 stevel #else 375 0 stevel int adjtime(); 376 0 stevel #endif 377 0 stevel #endif /* !defined(_KERNEL) && !defined(__XOPEN_OR_POSIX) ... */ 378 0 stevel 379 0 stevel #if !defined(_KERNEL) && !defined(__XOPEN_OR_POSIX) || \ 380 0 stevel defined(_ATFILE_SOURCE) || defined(__EXTENSIONS__) 381 0 stevel #if defined(__STDC__) 382 0 stevel int futimesat(int, const char *, const struct timeval *); 383 0 stevel #else 384 0 stevel int futimesat(); 385 0 stevel #endif /* defined(__STDC__) */ 386 0 stevel #endif /* defined(__ATFILE_SOURCE) */ 387 0 stevel 388 0 stevel #if !defined(_KERNEL) && !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || \ 389 0 stevel defined(__EXTENSIONS__) 390 0 stevel 391 0 stevel #if defined(__STDC__) 392 0 stevel 393 0 stevel int getitimer(int, struct itimerval *); 394 0 stevel int utimes(const char *, const struct timeval *); 395 0 stevel #if defined(_XPG4_2) 396 0 stevel int setitimer(int, const struct itimerval *_RESTRICT_KYWD, 397 0 stevel struct itimerval *_RESTRICT_KYWD); 398 0 stevel #else 399 0 stevel int setitimer(int, struct itimerval *_RESTRICT_KYWD, 400 0 stevel struct itimerval *_RESTRICT_KYWD); 401 0 stevel #endif /* defined(_XPG2_2) */ 402 0 stevel 403 0 stevel #else /* __STDC__ */ 404 0 stevel 405 0 stevel int gettimer(); 406 0 stevel int settimer(); 407 0 stevel int utimes(); 408 0 stevel #endif /* __STDC__ */ 409 0 stevel #endif /* !defined(_KERNEL) ... defined(_XPG4_2) */ 410 0 stevel 411 0 stevel /* 412 0 stevel * gettimeofday() and settimeofday() were included in SVr4 due to their 413 0 stevel * common use in BSD based applications. They were to be included exactly 414 0 stevel * as in BSD, with two parameters. However, AT&T/USL noted that the second 415 0 stevel * parameter was unused and deleted it, thereby making a routine included 416 0 stevel * for compatibility, incompatible. 417 0 stevel * 418 0 stevel * XSH4.2 (spec 1170) defines gettimeofday and settimeofday to have two 419 0 stevel * parameters. 420 0 stevel * 421 0 stevel * This has caused general disagreement in the application community as to 422 0 stevel * the syntax of these routines. Solaris defaults to the XSH4.2 definition. 423 0 stevel * The flag _SVID_GETTOD may be used to force the SVID version. 424 0 stevel */ 425 0 stevel #if !defined(_KERNEL) && !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 426 0 stevel 427 0 stevel #if defined(__STDC__) 428 0 stevel #if defined(_SVID_GETTOD) 429 0 stevel int settimeofday(struct timeval *); 430 0 stevel #else 431 0 stevel int settimeofday(struct timeval *, void *); 432 0 stevel #endif 433 0 stevel hrtime_t gethrtime(void); 434 0 stevel hrtime_t gethrvtime(void); 435 0 stevel #else /* __STDC__ */ 436 0 stevel int settimeofday(); 437 0 stevel hrtime_t gethrtime(); 438 0 stevel hrtime_t gethrvtime(); 439 0 stevel #endif /* __STDC__ */ 440 0 stevel 441 0 stevel #endif /* !(defined _KERNEL) && !defined(__XOPEN_OR_POSIX) ... */ 442 0 stevel 443 0 stevel #if !defined(_KERNEL) && !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || \ 444 0 stevel defined(__EXTENSIONS__) 445 0 stevel 446 0 stevel #if defined(__STDC__) 447 0 stevel #if defined(_SVID_GETTOD) 448 0 stevel int gettimeofday(struct timeval *); 449 0 stevel #else 450 0 stevel int gettimeofday(struct timeval *_RESTRICT_KYWD, void *_RESTRICT_KYWD); 451 0 stevel #endif 452 0 stevel #else /* __STDC__ */ 453 0 stevel int gettimeofday(); 454 0 stevel #endif /* __STDC__ */ 455 0 stevel 456 0 stevel #endif /* !defined(_KERNEL) && !defined(__XOPEN_OR_POSIX) ... */ 457 0 stevel 458 0 stevel /* 459 0 stevel * The inclusion of <time.h> is historical and was added for 460 0 stevel * backward compatibility in delta 1.2 when a number of definitions 461 0 stevel * were moved out of <sys/time.h>. More recently, the timespec and 462 0 stevel * itimerspec structure definitions, along with the _CLOCK_*, CLOCK_*, 463 0 stevel * _TIMER_*, and TIMER_* symbols were moved to <sys/time_impl.h>, 464 0 stevel * which is now included by <time.h>. This change was due to POSIX 465 0 stevel * 1003.1b-1993 and X/Open UNIX 98 requirements. For non-POSIX and 466 0 stevel * non-X/Open applications, including this header will still make 467 0 stevel * visible these definitions. 468 0 stevel */ 469 3446 mrj #if !defined(_BOOT) && !defined(_KERNEL) && \ 470 3446 mrj !defined(__XOPEN_OR_POSIX) || defined(__EXTENSIONS__) 471 0 stevel #include <time.h> 472 0 stevel #endif 473 0 stevel 474 0 stevel /* 475 0 stevel * The inclusion of <sys/select.h> is needed for the FD_CLR, 476 0 stevel * FD_ISSET, FD_SET, and FD_SETSIZE macros as well as the 477 0 stevel * select() prototype defined in the XOpen specifications 478 0 stevel * beginning with XSH4v2. Placement required after definition 479 0 stevel * for itimerval. 480 0 stevel */ 481 0 stevel #if !defined(_KERNEL) && !defined(__XOPEN_OR_POSIX) || defined(_XPG4_2) || \ 482 0 stevel defined(__EXTENSIONS__) 483 0 stevel #include <sys/select.h> 484 0 stevel #endif 485 0 stevel 486 0 stevel #endif /* _ASM */ 487 0 stevel 488 0 stevel #ifdef __cplusplus 489 0 stevel } 490 0 stevel #endif 491 0 stevel 492 0 stevel #endif /* _SYS_TIME_H */ 493
Indexes created Thu Nov 26 09:40:41 UTC 2009
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