1 #ifndef _TIME_H
2 #include <time/time.h>
3
4 #ifndef _ISOMAC
5 # include <bits/types/struct_timeval.h>
6 # include <struct___timespec64.h>
7 # include <struct___timeval64.h>
8 # include <bits/types/locale_t.h>
9 # include <stdbool.h>
10 # include <time/mktime-internal.h>
11 # include <sys/time.h>
12 # include <time-clockid.h>
13 # include <sys/time.h>
14 # include <stdint.h>
15
16 extern __typeof (strftime_l) __strftime_l;
17 libc_hidden_proto (__strftime_l)
18 extern __typeof (strptime_l) __strptime_l;
19
20 libc_hidden_proto (asctime)
21 libc_hidden_proto (mktime)
22 libc_hidden_proto (timelocal)
23 libc_hidden_proto (localtime)
24 libc_hidden_proto (strftime)
25 libc_hidden_proto (strptime)
26
27 extern __typeof (clock_gettime) __clock_gettime;
28 libc_hidden_proto (__clock_gettime)
29 extern __typeof (clock_settime) __clock_settime;
30 libc_hidden_proto (__clock_settime)
31
32 extern __typeof (clock_getres) __clock_getres;
33 libc_hidden_proto (__clock_getres)
34
35 extern __typeof (clock_nanosleep) __clock_nanosleep;
36 libc_hidden_proto (__clock_nanosleep);
37
38 #ifdef __linux__
39 extern __typeof (clock_adjtime) __clock_adjtime;
40 libc_hidden_proto (__clock_adjtime);
41 #endif
42
43 /* Now define the internal interfaces. */
44 struct tm;
45
46 /* Defined in mktime.c. */
47 extern const unsigned short int __mon_yday[2][13] attribute_hidden;
48
49 /* Defined in localtime.c. */
50 extern struct tm _tmbuf attribute_hidden;
51
52 /* Defined in tzset.c. */
53 extern char *__tzstring (const char *string) attribute_hidden;
54
55 extern int __use_tzfile attribute_hidden;
56
57 extern void __tzfile_read (const char *file, size_t extra,
58 char **extrap) attribute_hidden;
59 extern void __tzfile_compute (__time64_t timer, int use_localtime,
60 long int *leap_correct, int *leap_hit,
61 struct tm *tp) attribute_hidden;
62 extern void __tzfile_default (const char *std, const char *dst,
63 int stdoff, int dstoff)
64 attribute_hidden;
65 extern void __tzset_parse_tz (const char *tz) attribute_hidden;
66 extern void __tz_compute (__time64_t timer, struct tm *tm, int use_localtime)
67 __THROW attribute_hidden;
68
69
70 #if __TIMESIZE == 64
71 # define __itimerspec64 itimerspec
72 #else
73 /* The glibc's internal representation of the struct itimerspec. */
74 struct __itimerspec64
75 {
76 struct __timespec64 it_interval;
77 struct __timespec64 it_value;
78 };
79 #endif
80
81 #if __TIMESIZE == 64
82 # define __utimbuf64 utimbuf
83 # define __itimerval64 itimerval
84 #else
85 /* The glibc Y2038-proof struct __utimbuf64 structure for file's access
86 and modification time values. */
87 struct __utimbuf64
88 {
89 __time64_t actime; /* Access time. */
90 __time64_t modtime; /* Modification time. */
91 };
92 /* The glibc's internal representation of the struct itimerval. */
93 struct __itimerval64
94 {
95 struct __timeval64 it_interval;
96 struct __timeval64 it_value;
97 };
98 #endif
99
100 #if __TIMESIZE == 64
101 # define __getitimer64 __getitimer
102 # define __setitimer64 __setitimer
103 #else
104 extern int __getitimer64 (enum __itimer_which __which,
105 struct __itimerval64 *__value);
106
107 libc_hidden_proto (__getitimer64)
108 extern int __setitimer64 (enum __itimer_which __which,
109 const struct __itimerval64 *__restrict __new,
110 struct __itimerval64 *__restrict __old);
111 libc_hidden_proto (__setitimer64)
112 #endif
113
114 #if __TIMESIZE == 64
115 # define __ctime64 ctime
116 #else
117 extern char *__ctime64 (const __time64_t *__timer) __THROW;
118 libc_hidden_proto (__ctime64)
119 #endif
120
121 #if __TIMESIZE == 64
122 # define __ctime64_r ctime_r
123 #else
124 extern char *__ctime64_r (const __time64_t *__restrict __timer,
125 char *__restrict __buf) __THROW;
126 libc_hidden_proto (__ctime64_r)
127 #endif
128
129 #if __TIMESIZE == 64
130 # define __localtime64 localtime
131 #else
132 extern struct tm *__localtime64 (const __time64_t *__timer);
133 libc_hidden_proto (__localtime64)
134 #endif
135
136 extern struct tm *__localtime_r (const time_t *__timer,
137 struct tm *__tp) attribute_hidden;
138 #if __TIMESIZE != 64
139 extern struct tm *__localtime64_r (const __time64_t *__timer,
140 struct tm *__tp);
141 libc_hidden_proto (__localtime64_r)
142
143 extern __time64_t __mktime64 (struct tm *__tp) __THROW;
144 libc_hidden_proto (__mktime64)
145 #endif
146
147 extern struct tm *__gmtime_r (const time_t *__restrict __timer,
148 struct tm *__restrict __tp);
149 libc_hidden_proto (__gmtime_r)
150
151 #if __TIMESIZE == 64
152 # define __gmtime64 gmtime
153 #else
154 extern struct tm *__gmtime64 (const __time64_t *__timer);
155 libc_hidden_proto (__gmtime64)
156
157 extern struct tm *__gmtime64_r (const __time64_t *__restrict __timer,
158 struct tm *__restrict __tp);
159 libc_hidden_proto (__gmtime64_r)
160
161 extern __time64_t __timegm64 (struct tm *__tp) __THROW;
162 libc_hidden_proto (__timegm64)
163 #endif
164
165 #if __TIMESIZE == 64
166 # define __clock_settime64 __clock_settime
167 #else
168 extern int __clock_settime64 (clockid_t clock_id,
169 const struct __timespec64 *tp) __nonnull((2));
170 libc_hidden_proto (__clock_settime64)
171 #endif
172
173 #if __TIMESIZE == 64
174 # define __clock_getres64 __clock_getres
175 #else
176 extern int __clock_getres64 (clockid_t clock_id,
177 struct __timespec64 *tp);
178 libc_hidden_proto (__clock_getres64);
179 #endif
180
181 #if __TIMESIZE == 64
182 # define __utime64 __utime
183 # define __utimes64 __utimes
184 # define __utimensat64 __utimensat
185 #else
186 extern int __utime64 (const char *file, const struct __utimbuf64 *times);
187 libc_hidden_proto (__utime64)
188 extern int __utimes64 (const char *file, const struct __timeval64 tvp[2]);
189 libc_hidden_proto (__utimes64)
190 extern int __utimensat64 (int fd, const char *file,
191 const struct __timespec64 tsp[2], int flags);
192 libc_hidden_proto (__utimensat64);
193 #endif
194
195 extern int __utimensat64_helper (int fd, const char *file,
196 const struct __timespec64 tsp[2], int flags);
197 libc_hidden_proto (__utimensat64_helper);
198
199 #if __TIMESIZE == 64
200 # define __futimes64 __futimes
201 # define __futimesat64 __futimesat
202 # define __lutimes64 __lutimes
203 # define __futimens64 __futimens
204 #else
205 extern int __futimes64 (int fd, const struct __timeval64 tvp64[2]);
206 libc_hidden_proto (__futimes64);
207 extern int __futimesat64 (int fd, const char *file,
208 const struct __timeval64 tvp[2]);
209 libc_hidden_proto (__futimesat64);
210 extern int __lutimes64 (const char *file, const struct __timeval64 tvp64[2]);
211 libc_hidden_proto (__lutimes64);
212 extern int __futimens64 (int fd, const struct __timespec64 tsp[2]);
213 libc_hidden_proto (__futimens64);
214 #endif
215
216 #if __TIMESIZE == 64
217 # define __timer_gettime64 __timer_gettime
218 # define __timerfd_gettime64 __timerfd_gettime
219 #else
220 extern int __timer_gettime64 (timer_t timerid, struct __itimerspec64 *value);
221 extern int __timerfd_gettime64 (int fd, struct __itimerspec64 *value);
222 # if PTHREAD_IN_LIBC
223 libc_hidden_proto (__timer_gettime64)
224 # else
225 librt_hidden_proto (__timer_gettime64)
226 # endif
227 libc_hidden_proto (__timerfd_gettime64);
228 #endif
229
230 #if __TIMESIZE == 64
231 # define __timer_settime64 __timer_settime
232 # define __timerfd_settime64 __timerfd_settime
233 #else
234 extern int __timer_settime64 (timer_t timerid, int flags,
235 const struct __itimerspec64 *value,
236 struct __itimerspec64 *ovalue);
237 extern int __timerfd_settime64 (int fd, int flags,
238 const struct __itimerspec64 *value,
239 struct __itimerspec64 *ovalue);
240 # if PTHREAD_IN_LIBC
241 libc_hidden_proto (__timer_settime64)
242 #else
243 librt_hidden_proto (__timer_settime64)
244 #endif
245 libc_hidden_proto (__timerfd_settime64);
246 #endif
247
248 #if __TIMESIZE == 64
249 # define __sched_rr_get_interval64 __sched_rr_get_interval
250 #else
251 extern int __sched_rr_get_interval64 (pid_t pid, struct __timespec64 *tp);
252 libc_hidden_proto (__sched_rr_get_interval64);
253 #endif
254
255 #if __TIMESIZE == 64
256 # define __settimeofday64 __settimeofday
257 # define __gettimeofday64 __gettimeofday
258 #else
259 extern int __settimeofday64 (const struct __timeval64 *tv,
260 const struct timezone *tz);
261 libc_hidden_proto (__settimeofday64)
262 extern int __gettimeofday64 (struct __timeval64 *restrict tv,
263 void *restrict tz);
264 libc_hidden_proto (__gettimeofday64)
265 #endif
266
267 /* Compute the `struct tm' representation of T,
268 offset OFFSET seconds east of UTC,
269 and store year, yday, mon, mday, wday, hour, min, sec into *TP.
270 Return nonzero if successful. */
271 extern int __offtime (__time64_t __timer,
272 long int __offset,
273 struct tm *__tp) attribute_hidden;
274
275 extern char *__asctime_r (const struct tm *__tp, char *__buf)
276 attribute_hidden;
277 extern void __tzset (void) attribute_hidden;
278
279 /* Prototype for the internal function to get information based on TZ. */
280 extern struct tm *__tz_convert (__time64_t timer, int use_localtime,
281 struct tm *tp) attribute_hidden;
282
283 extern int __nanosleep (const struct timespec *__requested_time,
284 struct timespec *__remaining);
285 hidden_proto (__nanosleep)
286 #if __TIMESIZE == 64
287 # define __nanosleep64 __nanosleep
288 #else
289 extern int __nanosleep64 (const struct __timespec64 *__requested_time,
290 struct __timespec64 *__remaining);
291 hidden_proto (__nanosleep64)
292 #endif
293
294
295 extern int __getdate_r (const char *__string, struct tm *__resbufp);
296 libc_hidden_proto (__getdate_r);
297
298
299 /* Determine CLK_TCK value. */
300 extern int __getclktck (void) attribute_hidden;
301
302
303 /* strptime support. */
304 extern char * __strptime_internal (const char *rp, const char *fmt,
305 struct tm *tm, void *statep,
306 locale_t locparam) attribute_hidden;
307
308 #if __TIMESIZE == 64
309 # define __difftime64 __difftime
310 #else
311 extern double __difftime64 (__time64_t time1, __time64_t time0);
312 libc_hidden_proto (__difftime64)
313 #endif
314
315 extern double __difftime (time_t time1, time_t time0);
316
317 #if __TIMESIZE == 64
318 # define __clock_nanosleep_time64 __clock_nanosleep
319 # define __clock_gettime64 __clock_gettime
320 # define __timespec_get64 __timespec_get
321 # define __timespec_getres64 __timespec_getres
322 #else
323 extern int __clock_nanosleep_time64 (clockid_t clock_id,
324 int flags, const struct __timespec64 *req,
325 struct __timespec64 *rem);
326 libc_hidden_proto (__clock_nanosleep_time64)
327 extern int __clock_gettime64 (clockid_t clock_id, struct __timespec64 *tp) __nonnull((2));
328 libc_hidden_proto (__clock_gettime64)
329 extern int __timespec_get64 (struct __timespec64 *ts, int base);
330 libc_hidden_proto (__timespec_get64)
331 extern int __timespec_getres64 (struct __timespec64 *ts, int base);
libc_hidden_proto(__timespec_getres64)332 libc_hidden_proto (__timespec_getres64)
333 #endif
334
335 #if __TIMESIZE == 64
336 # define __time64 __time
337 #else
338 extern __time64_t __time64 (__time64_t *timer);
339 libc_hidden_proto (__time64)
340 #endif
341
342 /* Use in the clock_* functions. Size of the field representing the
343 actual clock ID. */
344 #define CLOCK_IDFIELD_SIZE 3
345
346 /* Check whether T fits in int32_t, assume all usages are for
347 sizeof(time_t) == 32. */
348 static inline bool
349 in_time_t_range (__time64_t t)
350 {
351 int32_t s = t;
352 return s == t;
353 }
354
355 /* Convert a known valid struct timeval into a struct __timespec64. */
356 static inline struct __timespec64
valid_timeval_to_timespec64(const struct timeval tv)357 valid_timeval_to_timespec64 (const struct timeval tv)
358 {
359 struct __timespec64 ts64;
360
361 ts64.tv_sec = tv.tv_sec;
362 ts64.tv_nsec = tv.tv_usec * 1000;
363
364 return ts64;
365 }
366
367 /* Convert a known valid struct timeval into a struct __timeval64. */
368 static inline struct __timeval64
valid_timeval_to_timeval64(const struct timeval tv)369 valid_timeval_to_timeval64 (const struct timeval tv)
370 {
371 struct __timeval64 tv64;
372
373 tv64.tv_sec = tv.tv_sec;
374 tv64.tv_usec = tv.tv_usec;
375
376 return tv64;
377 }
378
379 /* Convert a valid and within range of struct timeval, struct
380 __timeval64 into a struct timeval. */
381 static inline struct timeval
valid_timeval64_to_timeval(const struct __timeval64 tv64)382 valid_timeval64_to_timeval (const struct __timeval64 tv64)
383 {
384 struct timeval tv;
385
386 tv.tv_sec = (time_t) tv64.tv_sec;
387 tv.tv_usec = (suseconds_t) tv64.tv_usec;
388
389 return tv;
390 }
391
392 /* Convert a struct __timeval64 into a struct __timespec64. */
393 static inline struct __timespec64
timeval64_to_timespec64(const struct __timeval64 tv64)394 timeval64_to_timespec64 (const struct __timeval64 tv64)
395 {
396 struct __timespec64 ts64;
397
398 ts64.tv_sec = tv64.tv_sec;
399 ts64.tv_nsec = tv64.tv_usec * 1000;
400
401 return ts64;
402 }
403
404 /* Convert a known valid struct timespec into a struct __timespec64. */
405 static inline struct __timespec64
valid_timespec_to_timespec64(const struct timespec ts)406 valid_timespec_to_timespec64 (const struct timespec ts)
407 {
408 struct __timespec64 ts64;
409
410 ts64.tv_sec = ts.tv_sec;
411 ts64.tv_nsec = ts.tv_nsec;
412
413 return ts64;
414 }
415
416 /* Convert a valid and within range of struct timespec, struct
417 __timespec64 into a struct timespec. */
418 static inline struct timespec
valid_timespec64_to_timespec(const struct __timespec64 ts64)419 valid_timespec64_to_timespec (const struct __timespec64 ts64)
420 {
421 struct timespec ts;
422
423 ts.tv_sec = (time_t) ts64.tv_sec;
424 ts.tv_nsec = ts64.tv_nsec;
425
426 return ts;
427 }
428
429 /* Convert a valid and within range of struct timeval struct
430 __timespec64 into a struct timeval. */
431 static inline struct timeval
valid_timespec64_to_timeval(const struct __timespec64 ts64)432 valid_timespec64_to_timeval (const struct __timespec64 ts64)
433 {
434 struct timeval tv;
435
436 tv.tv_sec = (time_t) ts64.tv_sec;
437 tv.tv_usec = ts64.tv_nsec / 1000;
438
439 return tv;
440 }
441
442 /* Convert a struct __timespec64 into a struct __timeval64. */
443 static inline struct __timeval64
timespec64_to_timeval64(const struct __timespec64 ts64)444 timespec64_to_timeval64 (const struct __timespec64 ts64)
445 {
446 struct __timeval64 tv64;
447
448 tv64.tv_sec = ts64.tv_sec;
449 tv64.tv_usec = ts64.tv_nsec / 1000;
450
451 return tv64;
452 }
453
454 /* A version of 'struct timeval' with 32-bit time_t
455 and suseconds_t. */
456 struct __timeval32
457 {
458 int32_t tv_sec; /* Seconds. */
459 int32_t tv_usec; /* Microseconds. */
460 };
461
462 /* Conversion functions for converting to/from __timeval32 */
463 static inline struct __timeval64
valid_timeval32_to_timeval64(const struct __timeval32 tv)464 valid_timeval32_to_timeval64 (const struct __timeval32 tv)
465 {
466 return (struct __timeval64) { tv.tv_sec, tv.tv_usec };
467 }
468
469 static inline struct __timeval32
valid_timeval64_to_timeval32(const struct __timeval64 tv64)470 valid_timeval64_to_timeval32 (const struct __timeval64 tv64)
471 {
472 return (struct __timeval32) { tv64.tv_sec, tv64.tv_usec };
473 }
474
475 static inline struct timeval
valid_timeval32_to_timeval(const struct __timeval32 tv)476 valid_timeval32_to_timeval (const struct __timeval32 tv)
477 {
478 return (struct timeval) { tv.tv_sec, tv.tv_usec };
479 }
480
481 static inline struct __timeval32
valid_timeval_to_timeval32(const struct timeval tv)482 valid_timeval_to_timeval32 (const struct timeval tv)
483 {
484 return (struct __timeval32) { tv.tv_sec, tv.tv_usec };
485 }
486
487 static inline struct timespec
valid_timeval32_to_timespec(const struct __timeval32 tv)488 valid_timeval32_to_timespec (const struct __timeval32 tv)
489 {
490 return (struct timespec) { tv.tv_sec, tv.tv_usec * 1000 };
491 }
492
493 static inline struct __timeval32
valid_timespec_to_timeval32(const struct timespec ts)494 valid_timespec_to_timeval32 (const struct timespec ts)
495 {
496 return (struct __timeval32) { (time_t) ts.tv_sec, ts.tv_nsec / 1000 };
497 }
498
499 static inline struct __timeval64
valid_timespec_to_timeval64(const struct timespec ts)500 valid_timespec_to_timeval64 (const struct timespec ts)
501 {
502 return (struct __timeval64) { (time_t) ts.tv_sec, ts.tv_nsec / 1000 };
503 }
504
505 /* Check if a value is in the valid nanoseconds range. Return true if
506 it is, false otherwise. */
507 static inline bool
valid_nanoseconds(__syscall_slong_t ns)508 valid_nanoseconds (__syscall_slong_t ns)
509 {
510 return __glibc_likely (0 <= ns && ns < 1000000000);
511 }
512
513 /* Helper function to get time in seconds, similar to time. */
514 static inline time_t
time_now(void)515 time_now (void)
516 {
517 struct timespec ts;
518 __clock_gettime (TIME_CLOCK_GETTIME_CLOCKID, &ts);
519 return ts.tv_sec;
520 }
521
522 static inline __time64_t
time64_now(void)523 time64_now (void)
524 {
525 struct __timespec64 ts;
526 __clock_gettime64 (TIME_CLOCK_GETTIME_CLOCKID, &ts);
527 return ts.tv_sec;
528 }
529
530 #define NSEC_PER_SEC 1000000000L /* Nanoseconds per second. */
531 #define USEC_PER_SEC 1000000L /* Microseconds per second. */
532 #define NSEC_PER_USEC 1000L /* Nanoseconds per microsecond. */
533
534 #endif
535
536 #endif
537