-
Notifications
You must be signed in to change notification settings - Fork 5.2k
/
Copy pathctime.c
1266 lines (1103 loc) · 31.3 KB
/
ctime.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2019-08-21 zhangjun copy from minilibc
* 2020-09-07 Meco Man combine gcc armcc iccarm
* 2021-02-05 Meco Man add timegm()
* 2021-02-07 Meco Man fixed gettimeofday()
* 2021-02-08 Meco Man add settimeofday() stime()
* 2021-02-10 Meco Man add ctime_r() and re-implement ctime()
* 2021-02-11 Meco Man fix bug #3183 - align days[] and months[] to 4 bytes
* 2021-02-12 Meco Man add errno
* 2012-12-08 Bernard <clock_time.c> fix the issue of _timevalue.tv_usec initialization,
* which found by Rob <[email protected]>
* 2021-02-12 Meco Man move all of the functions located in <clock_time.c> to this file
* 2021-03-15 Meco Man fixed a bug of leaking memory in asctime()
* 2021-05-01 Meco Man support fixed timezone
* 2021-07-21 Meco Man implement that change/set timezone APIs
* 2023-07-03 xqyjlj refactor posix time and timer
* 2023-07-16 Shell update signal generation routine for lwp
* adapt to new api and do the signal handling in thread context
* 2023-08-12 Meco Man re-implement RT-Thread lightweight timezone API
* 2023-09-15 xqyjlj perf rt_hw_interrupt_disable/enable
* 2023-10-23 Shell add lock for _g_timerid
* 2023-11-16 Shell Fixup of nanosleep if previous call was interrupted
*/
#include "sys/time.h"
#include <rthw.h>
#include <rtthread.h>
#ifdef RT_USING_RTC
#include <rtdevice.h>
#endif /* RT_USING_RTC */
#include <sys/errno.h>
#include <unistd.h>
#ifdef RT_USING_SMART
#include <lwp.h>
#endif
#ifdef RT_USING_POSIX_DELAY
#include <delay.h>
#endif
#ifdef RT_USING_KTIME
#include <ktime.h>
#endif
#define DBG_TAG "time"
#define DBG_LVL DBG_INFO
#include <rtdbg.h>
#define _WARNING_NO_RTC "Cannot find a RTC device!"
/* days per month -- nonleap! */
static const short __spm[13] =
{
0,
(31),
(31 + 28),
(31 + 28 + 31),
(31 + 28 + 31 + 30),
(31 + 28 + 31 + 30 + 31),
(31 + 28 + 31 + 30 + 31 + 30),
(31 + 28 + 31 + 30 + 31 + 30 + 31),
(31 + 28 + 31 + 30 + 31 + 30 + 31 + 31),
(31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30),
(31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31),
(31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30),
(31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31),
};
rt_align(RT_ALIGN_SIZE) static const char days[] = "Sun Mon Tue Wed Thu Fri Sat ";
rt_align(RT_ALIGN_SIZE) static const char months[] = "Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ";
#ifndef __isleap
static int __isleap(int year)
{
/* every fourth year is a leap year except for century years that are
* not divisible by 400. */
/* return (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0)); */
return (!(year % 4) && ((year % 100) || !(year % 400)));
}
#endif
static void num2str(char *c, int i)
{
c[0] = i / 10 + '0';
c[1] = i % 10 + '0';
}
#ifdef RT_USING_RTC
static rt_err_t _control_rtc(int cmd, void *arg)
{
static rt_device_t device = RT_NULL;
rt_err_t rst = -RT_ERROR;
if (device == RT_NULL)
{
device = rt_device_find("rtc");
}
/* read timestamp from RTC device */
if (device != RT_NULL)
{
if (rt_device_open(device, 0) == RT_EOK)
{
rst = rt_device_control(device, cmd, arg);
rt_device_close(device);
}
}
else
{
LOG_W(_WARNING_NO_RTC);
return -RT_ENOSYS;
}
return rst;
}
#endif /* RT_USING_RTC */
/* lightweight timezone and daylight saving time */
#ifdef RT_LIBC_USING_LIGHT_TZ_DST
#ifndef RT_LIBC_TZ_DEFAULT_HOUR
#define RT_LIBC_TZ_DEFAULT_HOUR (8U)
#endif /* RT_LIBC_TZ_DEFAULT_HOUR */
#ifndef RT_LIBC_TZ_DEFAULT_MIN
#define RT_LIBC_TZ_DEFAULT_MIN (0U)
#endif /* RT_LIBC_TZ_DEFAULT_MIN */
#ifndef RT_LIBC_TZ_DEFAULT_SEC
#define RT_LIBC_TZ_DEFAULT_SEC (0U)
#endif /* RT_LIBC_TZ_DEFAULT_SEC */
static volatile int32_t _current_tz_offset_sec = \
RT_LIBC_TZ_DEFAULT_HOUR * 3600U + RT_LIBC_TZ_DEFAULT_MIN * 60U + RT_LIBC_TZ_DEFAULT_SEC;
/* return current timezone offset in seconds */
void rt_tz_set(int32_t offset_sec)
{
_current_tz_offset_sec = offset_sec;
}
int32_t rt_tz_get(void)
{
return _current_tz_offset_sec;
}
int8_t rt_tz_is_dst(void)
{
return 0U; /* TODO */
}
#endif /* RT_LIBC_USING_LIGHT_TZ_DST */
struct tm *gmtime_r(const time_t *timep, struct tm *r)
{
int i;
int work;
if(timep == RT_NULL || r == RT_NULL)
{
rt_set_errno(EFAULT);
return RT_NULL;
}
rt_memset(r, RT_NULL, sizeof(struct tm));
work = *timep % (24*60*60);
r->tm_sec = work % 60;
work /= 60;
r->tm_min = work % 60;
r->tm_hour = work / 60;
work = (int)(*timep / (24*60*60));
r->tm_wday = (4 + work) % 7;
for (i = 1970;; ++i)
{
int k = __isleap(i) ? 366 : 365;
if (work >= k)
work -= k;
else
break;
}
r->tm_year = i - 1900;
r->tm_yday = work;
r->tm_mday = 1;
if (__isleap(i) && (work > 58))
{
if (work == 59)
r->tm_mday = 2; /* 29.2. */
work -= 1;
}
for (i = 11; i && (__spm[i] > work); --i);
r->tm_mon = i;
r->tm_mday += work - __spm[i];
#if defined(RT_LIBC_USING_LIGHT_TZ_DST)
r->tm_isdst = rt_tz_is_dst();
#else
r->tm_isdst = 0U;
#endif /* RT_LIBC_USING_LIGHT_TZ_DST */
return r;
}
RTM_EXPORT(gmtime_r);
struct tm* gmtime(const time_t* t)
{
static struct tm tmp;
return gmtime_r(t, &tmp);
}
RTM_EXPORT(gmtime);
struct tm* localtime_r(const time_t* t, struct tm* r)
{
time_t local_tz;
#if defined(RT_LIBC_USING_LIGHT_TZ_DST)
local_tz = *t + rt_tz_get();
#else
local_tz = *t + 0U;
#endif /* RT_LIBC_USING_LIGHT_TZ_DST */
return gmtime_r(&local_tz, r);
}
RTM_EXPORT(localtime_r);
struct tm* localtime(const time_t* t)
{
static struct tm tmp;
return localtime_r(t, &tmp);
}
RTM_EXPORT(localtime);
time_t mktime(struct tm * const t)
{
time_t timestamp;
timestamp = timegm(t);
#if defined(RT_LIBC_USING_LIGHT_TZ_DST)
timestamp = timestamp - rt_tz_get();
#else
timestamp = timestamp - 0U;
#endif /* RT_LIBC_USING_LIGHT_TZ_DST */
return timestamp;
}
RTM_EXPORT(mktime);
char* asctime_r(const struct tm *t, char *buf)
{
if(t == RT_NULL || buf == RT_NULL)
{
rt_set_errno(EFAULT);
return RT_NULL;
}
rt_memset(buf, RT_NULL, 26);
/* Checking input validity */
if ((int)rt_strlen(days) <= (t->tm_wday << 2) || (int)rt_strlen(months) <= (t->tm_mon << 2))
{
LOG_W("asctime_r: the input parameters exceeded the limit, please check it.");
*(int*) buf = *(int*) days;
*(int*) (buf + 4) = *(int*) months;
num2str(buf + 8, t->tm_mday);
if (buf[8] == '0')
buf[8] = ' ';
buf[10] = ' ';
num2str(buf + 11, t->tm_hour);
buf[13] = ':';
num2str(buf + 14, t->tm_min);
buf[16] = ':';
num2str(buf + 17, t->tm_sec);
buf[19] = ' ';
num2str(buf + 20, 2000 / 100);
num2str(buf + 22, 2000 % 100);
buf[24] = '\n';
buf[25] = '\0';
return buf;
}
/* "Wed Jun 30 21:49:08 1993\n" */
*(int*) buf = *(int*) (days + (t->tm_wday << 2));
*(int*) (buf + 4) = *(int*) (months + (t->tm_mon << 2));
num2str(buf + 8, t->tm_mday);
if (buf[8] == '0')
buf[8] = ' ';
buf[10] = ' ';
num2str(buf + 11, t->tm_hour);
buf[13] = ':';
num2str(buf + 14, t->tm_min);
buf[16] = ':';
num2str(buf + 17, t->tm_sec);
buf[19] = ' ';
num2str(buf + 20, (t->tm_year + 1900) / 100);
num2str(buf + 22, (t->tm_year + 1900) % 100);
buf[24] = '\n';
buf[25] = '\0';
return buf;
}
RTM_EXPORT(asctime_r);
char *asctime(const struct tm *timeptr)
{
static char buf[26];
return asctime_r(timeptr, buf);
}
RTM_EXPORT(asctime);
char *ctime_r(const time_t * tim_p, char * result)
{
struct tm tm;
return asctime_r(localtime_r(tim_p, &tm), result);
}
RTM_EXPORT(ctime_r);
char *ctime(const time_t *tim_p)
{
return asctime(localtime(tim_p));
}
RTM_EXPORT(ctime);
#if (!defined __ARMCC_VERSION) && (!defined __CC_ARM) && (!defined __ICCARM__)
double difftime(time_t time1, time_t time2)
{
return (double)(time1 - time2);
}
#endif
RTM_EXPORT(difftime);
RTM_EXPORT(strftime); /* inherent in the toolchain */
/**
* Returns the current time.
*
* @param time_t * t the timestamp pointer, if not used, keep NULL.
*
* @return The value ((time_t)-1) is returned if the calendar time is not available.
* If timer is not a NULL pointer, the return value is also stored in timer.
*
*/
rt_weak time_t time(time_t *t)
{
#ifdef RT_USING_RTC
time_t _t;
if (_control_rtc(RT_DEVICE_CTRL_RTC_GET_TIME, &_t) != RT_EOK)
{
rt_set_errno(EFAULT);
return (time_t)-1;
}
if (t)
*t = _t;
return _t;
#else
rt_set_errno(EFAULT);
return (time_t)-1;
#endif
}
RTM_EXPORT(time);
rt_weak clock_t clock(void)
{
return rt_tick_get(); // TODO should return cpu usage time
}
RTM_EXPORT(clock);
int stime(const time_t *t)
{
#ifdef RT_USING_RTC
if ((t != RT_NULL) && (_control_rtc(RT_DEVICE_CTRL_RTC_SET_TIME, (void *)t) == RT_EOK))
{
return 0;
}
#endif /* RT_USING_RTC */
rt_set_errno(EFAULT);
return -1;
}
RTM_EXPORT(stime);
time_t timegm(struct tm * const t)
{
time_t day;
time_t i;
time_t years;
if(t == RT_NULL)
{
rt_set_errno(EFAULT);
return (time_t)-1;
}
years = (time_t)t->tm_year - 70;
if (t->tm_sec > 60) /* seconds after the minute - [0, 60] including leap second */
{
t->tm_min += t->tm_sec / 60;
t->tm_sec %= 60;
}
if (t->tm_min >= 60) /* minutes after the hour - [0, 59] */
{
t->tm_hour += t->tm_min / 60;
t->tm_min %= 60;
}
if (t->tm_hour >= 24) /* hours since midnight - [0, 23] */
{
t->tm_mday += t->tm_hour / 24;
t->tm_hour %= 24;
}
if (t->tm_mon >= 12) /* months since January - [0, 11] */
{
t->tm_year += t->tm_mon / 12;
t->tm_mon %= 12;
}
while (t->tm_mday > __spm[1 + t->tm_mon])
{
if (t->tm_mon == 1 && __isleap(t->tm_year + 1900))
{
--t->tm_mday;
}
t->tm_mday -= __spm[t->tm_mon];
++t->tm_mon;
if (t->tm_mon > 11)
{
t->tm_mon = 0;
++t->tm_year;
}
}
if (t->tm_year < 70)
{
rt_set_errno(EINVAL);
return (time_t) -1;
}
/* Days since 1970 is 365 * number of years + number of leap years since 1970 */
day = years * 365 + (years + 1) / 4;
/* After 2100 we have to substract 3 leap years for every 400 years
This is not intuitive. Most mktime implementations do not support
dates after 2059, anyway, so we might leave this out for it's
bloat. */
if (years >= 131)
{
years -= 131;
years /= 100;
day -= (years >> 2) * 3 + 1;
if ((years &= 3) == 3)
years--;
day -= years;
}
day += t->tm_yday = __spm[t->tm_mon] + t->tm_mday - 1 +
(__isleap(t->tm_year + 1900) & (t->tm_mon > 1));
/* day is now the number of days since 'Jan 1 1970' */
i = 7;
t->tm_wday = (int)((day + 4) % i); /* Sunday=0, Monday=1, ..., Saturday=6 */
i = 24;
day *= i;
i = 60;
return ((day + t->tm_hour) * i + t->tm_min) * i + t->tm_sec;
}
RTM_EXPORT(timegm);
int gettimeofday(struct timeval *tv, struct timezone *tz)
{
/* The use of the timezone structure is obsolete;
* the tz argument should normally be specified as NULL.
* The tz_dsttime field has never been used under Linux.
* Thus, the following is purely of historic interest.
*/
if(tz != RT_NULL)
{
tz->tz_dsttime = DST_NONE;
#if defined(RT_LIBC_USING_LIGHT_TZ_DST)
tz->tz_minuteswest = -(rt_tz_get() / 60);
#else
tz->tz_minuteswest = 0;
#endif /* RT_LIBC_USING_LIGHT_TZ_DST */
}
#ifdef RT_USING_RTC
if (tv != RT_NULL)
{
tv->tv_sec = 0;
tv->tv_usec = 0;
if (_control_rtc(RT_DEVICE_CTRL_RTC_GET_TIMEVAL, tv) == RT_EOK)
{
return 0;
}
else
{
if (_control_rtc(RT_DEVICE_CTRL_RTC_GET_TIME, (void *)&tv->tv_sec) == RT_EOK)
{
return 0;
}
}
}
#endif /* RT_USING_RTC */
rt_set_errno(EINVAL);
return -1;
}
RTM_EXPORT(gettimeofday);
int settimeofday(const struct timeval *tv, const struct timezone *tz)
{
/* The use of the timezone structure is obsolete;
* the tz argument should normally be specified as NULL.
* The tz_dsttime field has never been used under Linux.
* Thus, the following is purely of historic interest.
*/
#ifdef RT_USING_RTC
if (tv != RT_NULL && (long)tv->tv_usec >= 0 && (long)tv->tv_sec >= 0)
{
if (_control_rtc(RT_DEVICE_CTRL_RTC_SET_TIMEVAL, (void *)tv) == RT_EOK)
{
return 0;
}
else
{
if (_control_rtc(RT_DEVICE_CTRL_RTC_SET_TIME, (void *)&tv->tv_sec) == RT_EOK)
{
return 0;
}
}
}
#endif /* RT_USING_RTC */
rt_set_errno(EINVAL);
return -1;
}
RTM_EXPORT(settimeofday);
#if defined(RT_USING_POSIX_DELAY) && defined(RT_USING_KTIME)
int nanosleep(const struct timespec *rqtp, struct timespec *rmtp)
{
struct timespec old_ts = {0};
struct timespec new_ts = {0};
struct rt_ktime_hrtimer timer;
rt_ktime_hrtimer_delay_init(&timer);
if (rqtp == RT_NULL)
{
rt_set_errno(EFAULT);
return -1;
}
if (rqtp->tv_sec < 0 || rqtp->tv_nsec < 0 || rqtp->tv_nsec >= NANOSECOND_PER_SECOND)
{
rt_set_errno(EINVAL);
return -1;
}
unsigned long ns = rqtp->tv_sec * NANOSECOND_PER_SECOND + rqtp->tv_nsec;
rt_ktime_boottime_get_ns(&old_ts);
rt_ktime_hrtimer_ndelay(&timer, ns);
if (rt_get_errno() == RT_EINTR)
{
if (rmtp)
{
rt_base_t rsec, rnsec;
rt_ktime_boottime_get_ns(&new_ts);
rsec = old_ts.tv_sec + rqtp->tv_sec - new_ts.tv_sec;
rnsec = old_ts.tv_nsec + rqtp->tv_nsec - new_ts.tv_nsec;
if (rnsec < 0)
{
rmtp->tv_sec = rsec - 1;
rmtp->tv_nsec = NANOSECOND_PER_SECOND + rnsec;
}
else
{
rmtp->tv_sec = rsec;
rmtp->tv_nsec = rnsec;
}
}
rt_ktime_hrtimer_delay_detach(&timer);
rt_set_errno(EINTR);
return -1;
}
rt_ktime_hrtimer_delay_detach(&timer);
return 0;
}
RTM_EXPORT(nanosleep);
#endif /* RT_USING_POSIX_DELAY && RT_USING_KTIME */
#if defined(RT_USING_POSIX_CLOCK) && defined(RT_USING_KTIME)
int clock_getres(clockid_t clockid, struct timespec *res)
{
if (res == RT_NULL)
{
rt_set_errno(EFAULT);
return -1;
}
switch (clockid)
{
case CLOCK_REALTIME: // use RTC
case CLOCK_REALTIME_COARSE:
#ifdef RT_USING_RTC
return _control_rtc(RT_DEVICE_CTRL_RTC_GET_TIMERES, res);
#endif /* RT_USING_RTC */
case CLOCK_MONOTONIC: // use cputimer
case CLOCK_MONOTONIC_COARSE:
case CLOCK_MONOTONIC_RAW:
case CLOCK_BOOTTIME:
case CLOCK_PROCESS_CPUTIME_ID:
case CLOCK_THREAD_CPUTIME_ID:
res->tv_sec = 0;
res->tv_nsec = (rt_ktime_cputimer_getres() / RT_KTIME_RESMUL);
return 0;
default:
rt_set_errno(EINVAL);
return -1;
}
}
RTM_EXPORT(clock_getres);
int clock_gettime(clockid_t clockid, struct timespec *tp)
{
if (tp == RT_NULL)
{
rt_set_errno(EFAULT);
return -1;
}
switch (clockid)
{
case CLOCK_REALTIME: // use RTC
case CLOCK_REALTIME_COARSE:
#ifdef RT_USING_RTC
return _control_rtc(RT_DEVICE_CTRL_RTC_GET_TIMESPEC, tp);
#endif /* RT_USING_RTC */
case CLOCK_MONOTONIC: // use boottime
case CLOCK_MONOTONIC_COARSE:
case CLOCK_MONOTONIC_RAW:
case CLOCK_BOOTTIME:
return rt_ktime_boottime_get_ns(tp);
case CLOCK_PROCESS_CPUTIME_ID:
case CLOCK_THREAD_CPUTIME_ID:
return rt_ktime_boottime_get_ns(tp); // TODO not yet implemented
default:
tp->tv_sec = 0;
tp->tv_nsec = 0;
rt_set_errno(EINVAL);
return -1;
}
}
RTM_EXPORT(clock_gettime);
int clock_nanosleep(clockid_t clockid, int flags, const struct timespec *rqtp, struct timespec *rmtp)
{
struct timespec ts = {0};
rt_err_t err = -RT_EINVAL;
if (rqtp == RT_NULL)
{
rt_set_errno(EFAULT);
return -1;
}
if (rqtp->tv_sec < 0 || rqtp->tv_nsec < 0 || rqtp->tv_nsec >= NANOSECOND_PER_SECOND)
{
rt_set_errno(EINVAL);
return -1;
}
switch (clockid)
{
case CLOCK_REALTIME: // use RTC
#ifdef RT_USING_RTC
if (flags & TIMER_ABSTIME)
err = _control_rtc(RT_DEVICE_CTRL_RTC_GET_TIMESPEC, &ts);
break;
#endif /* RT_USING_RTC */
case CLOCK_MONOTONIC: // use boottime
case CLOCK_PROCESS_CPUTIME_ID:
if (flags & TIMER_ABSTIME)
err = rt_ktime_boottime_get_ns(&ts);
break;
default:
rt_set_errno(EINVAL);
return -1;
}
if (err != RT_EOK)
return err;
int64_t ns = rqtp->tv_nsec - ts.tv_nsec + (rqtp->tv_sec - ts.tv_sec) * NANOSECOND_PER_SECOND;
if (ns <= 0)
return 0;
if (flags & TIMER_ABSTIME)
{
ts.tv_nsec = ns % NANOSECOND_PER_SECOND;
ts.tv_sec = ns / NANOSECOND_PER_SECOND;
return nanosleep(&ts, rmtp);
}
else
{
return nanosleep(rqtp, rmtp);
}
}
RTM_EXPORT(clock_nanosleep);
int clock_settime(clockid_t clockid, const struct timespec *tp)
{
if (tp == RT_NULL)
{
rt_set_errno(EFAULT);
return -1;
}
if (tp->tv_sec < 0 || tp->tv_nsec < 0 || tp->tv_nsec >= NANOSECOND_PER_SECOND)
{
rt_set_errno(EINVAL);
return -1;
}
switch (clockid)
{
#ifdef RT_USING_RTC
case CLOCK_REALTIME:
return _control_rtc(RT_DEVICE_CTRL_RTC_SET_TIMESPEC, (void *)tp);
#endif /* RT_USING_RTC */
case CLOCK_REALTIME_COARSE:
case CLOCK_MONOTONIC:
case CLOCK_MONOTONIC_COARSE:
case CLOCK_MONOTONIC_RAW:
case CLOCK_BOOTTIME:
case CLOCK_PROCESS_CPUTIME_ID:
case CLOCK_THREAD_CPUTIME_ID:
rt_set_errno(EPERM);
return -1;
default:
rt_set_errno(EINVAL);
return -1;
}
}
RTM_EXPORT(clock_settime);
int rt_timespec_to_tick(const struct timespec *time)
{
int tick;
int second;
long long nsecond;
struct timespec tp = {0};
RT_ASSERT(time != RT_NULL);
tick = RT_WAITING_FOREVER;
if (time != NULL)
{
/* get current tp */
clock_gettime(CLOCK_REALTIME, &tp);
if ((time->tv_nsec - tp.tv_nsec) < 0)
{
nsecond = NANOSECOND_PER_SECOND - (tp.tv_nsec - time->tv_nsec);
second = time->tv_sec - tp.tv_sec - 1;
}
else
{
nsecond = time->tv_nsec - tp.tv_nsec;
second = time->tv_sec - tp.tv_sec;
}
tick = second * RT_TICK_PER_SECOND + nsecond * RT_TICK_PER_SECOND / NANOSECOND_PER_SECOND;
if (tick < 0) tick = 0;
}
return tick;
}
RTM_EXPORT(rt_timespec_to_tick);
#endif /* RT_USING_POSIX_CLOCK && RT_USING_KTIME */
#if defined(RT_USING_POSIX_TIMER) && defined(RT_USING_KTIME)
#include <resource_id.h>
#define ACTIVE 1
#define NOT_ACTIVE 0
struct timer_obj
{
struct rt_ktime_hrtimer hrtimer;
void (*sigev_notify_func)(union sigval val);
union sigval val;
struct timespec interval; /* Reload value */
struct timespec value; /* Reload value */
unsigned long reload; /* Reload value in ms */
rt_uint32_t status;
int sigev_signo;
clockid_t clockid;
timer_t timer_id;
#ifdef RT_USING_SMART
pid_t pid;
struct rt_work *work;
rt_list_t lwp_node;
#endif
};
#ifdef RT_USING_SMART
struct lwp_timer_event_param
{
struct rt_work work;
union
{
int tid;
pid_t pid;
};
int signo;
union sigval sigval;
};
static void _lwp_timer_event_from_tid(struct rt_work *work, void *param)
{
rt_err_t ret;
struct lwp_timer_event_param *data = rt_container_of(work, struct lwp_timer_event_param, work);
rt_thread_t thread;
lwp_siginfo_ext_t ext;
RT_ASSERT(data->tid);
/* stop others from delete thread */
thread = lwp_tid_get_thread_and_inc_ref(data->tid);
/** The tid of thread is a READ ONLY value, but here still facing the risk of thread already been delete error */
ext = rt_malloc(sizeof(struct lwp_siginfo_ext));
if (ext)
{
ext->sigval = data->sigval;
}
ret = lwp_thread_signal_kill(thread, data->signo, SI_TIMER, ext);
lwp_tid_dec_ref(thread);
if (ret)
{
LOG_D("%s: Do kill failed(tid %d) returned %d", __func__, data->tid, ret);
}
}
static void _lwp_timer_event_from_pid(struct rt_work *work, void *param)
{
rt_err_t ret;
struct lwp_timer_event_param *data = rt_container_of(work, struct lwp_timer_event_param, work);
struct rt_lwp *lwp;
lwp_siginfo_ext_t ext;
lwp_pid_lock_take();
lwp = lwp_from_pid_locked(data->pid);
if (lwp)
lwp_ref_inc(lwp);
lwp_pid_lock_release();
ext = rt_malloc(sizeof(struct lwp_siginfo_ext));
if (ext)
{
ext->sigval = data->sigval;
}
ret = lwp_signal_kill(lwp, data->signo, SI_TIMER, ext);
if (lwp)
lwp_ref_dec(lwp);
if (ret)
{
LOG_D("%s: Do kill failed(pid %d) returned %d", __func__, data->pid, ret);
}
}
int timer_list_free(rt_list_t *timer_list)
{
struct timer_obj *pos, *n;
rt_list_for_each_entry_safe(pos, n, timer_list, lwp_node)
{
timer_delete(pos->timer_id);
}
return 0;
}
#endif /* RT_USING_SMART */
static void rtthread_timer_wrapper(void *timerobj)
{
struct timer_obj *timer;
timer = (struct timer_obj *)timerobj;
if (timer->reload == 0U)
{
timer->status = NOT_ACTIVE;
}
timer->reload = ((timer->interval.tv_sec * NANOSECOND_PER_SECOND + timer->interval.tv_nsec) * RT_KTIME_RESMUL) /
rt_ktime_cputimer_getres();
if (timer->reload)
{
rt_ktime_hrtimer_start(&timer->hrtimer, timer->reload);
}
#ifdef RT_USING_SMART
/* this field is named as tid in musl */
void *ptid = &timer->sigev_notify_func;
int tid = *(int *)ptid;
struct lwp_timer_event_param *data = rt_container_of(timer->work, struct lwp_timer_event_param, work);
data->signo = timer->sigev_signo;
if (!tid)
{
data->pid = timer->pid;
rt_work_init(timer->work, _lwp_timer_event_from_pid, 0);
}
else
{
data->tid = tid;
rt_work_init(timer->work, _lwp_timer_event_from_tid, 0);
}
if (rt_work_submit(timer->work, 0))
RT_ASSERT(0);
#else
if(timer->sigev_notify_func != RT_NULL)
{
(timer->sigev_notify_func)(timer->val);
}
#endif /* RT_USING_SMART */
}
#define TIMER_ID_MAX 50
static struct rt_spinlock _timer_id_lock = RT_SPINLOCK_INIT;
static struct timer_obj *_g_timerid[TIMER_ID_MAX];
static void *timer_id[TIMER_ID_MAX];
static resource_id_t id_timer = RESOURCE_ID_INIT(TIMER_ID_MAX, timer_id);
/**
* @brief Create a per-process timer.
*
* This API does not accept SIGEV_THREAD as valid signal event notification
* type.
*
* See IEEE 1003.1
*/
int timer_create(clockid_t clockid, struct sigevent *evp, timer_t *timerid)
{
static int num = 0;
int _timerid = 0;
struct timer_obj *timer;
char timername[RT_NAME_MAX] = {0};
if (evp == RT_NULL || timerid == RT_NULL)
{
rt_set_errno(EINVAL);
return -1;
}
if (evp->sigev_notify == SIGEV_THREAD) // TODO need to implement
{
rt_set_errno(EINVAL);
return -1;
}
switch (clockid)
{
case CLOCK_REALTIME:
case CLOCK_REALTIME_ALARM:
case CLOCK_MONOTONIC:
case CLOCK_BOOTTIME:
case CLOCK_BOOTTIME_ALARM:
case CLOCK_PROCESS_CPUTIME_ID:
case CLOCK_THREAD_CPUTIME_ID:
break; // Only these ids are supported
default:
rt_set_errno(EINVAL);
return -1;
}
timer = rt_malloc(sizeof(struct timer_obj));
if(timer == RT_NULL)
{
rt_set_errno(ENOMEM);
return -1;
}
rt_snprintf(timername, RT_NAME_MAX, "psx_tm%02d", num++);