1 #ifdef __cplusplus
2 extern "C" {
3 #endif
4 #define PERL_NO_GET_CONTEXT
5 #include "EXTERN.h"
6 #include "perl.h"
7 #include "XSUB.h"
8 #ifdef WIN32
9 #include <time.h>
10 #else
11 #include <sys/time.h>
12 #endif
13 #ifdef HAS_SELECT
14 # ifdef I_SYS_SELECT
15 # include <sys/select.h>
16 # endif
17 #endif
18 #ifdef __cplusplus
19 }
20 #endif
21
22 #ifndef NOOP
23 # define NOOP (void)0
24 #endif
25 #ifndef dNOOP
26 # define dNOOP extern int Perl___notused
27 #endif
28
29 #ifndef aTHX_
30 # define aTHX_
31 # define pTHX_
32 # define dTHX dNOOP
33 #endif
34
35 #ifdef START_MY_CXT
36 # ifndef MY_CXT_CLONE
37 # define MY_CXT_CLONE \
38 dMY_CXT_SV; \
39 my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\
40 Copy(INT2PTR(my_cxt_t*, SvUV(my_cxt_sv)), my_cxtp, 1, my_cxt_t); \
41 sv_setuv(my_cxt_sv, PTR2UV(my_cxtp))
42 # endif
43 #else
44 # define START_MY_CXT static my_cxt_t my_cxt;
45 # define dMY_CXT dNOOP
46 # define MY_CXT_INIT NOOP
47 # define MY_CXT_CLONE NOOP
48 # define MY_CXT my_cxt
49 #endif
50
51 #ifndef NVTYPE
52 # if defined(USE_LONG_DOUBLE) && defined(HAS_LONG_DOUBLE)
53 # define NVTYPE long double
54 # else
55 # define NVTYPE double
56 # endif
57 typedef NVTYPE NV;
58 #endif
59
60 #ifndef IVdf
61 # ifdef IVSIZE
62 # if IVSIZE == LONGSIZE
63 # define IVdf "ld"
64 # define UVuf "lu"
65 # else
66 # if IVSIZE == INTSIZE
67 # define IVdf "d"
68 # define UVuf "u"
69 # endif
70 # endif
71 # else
72 # define IVdf "ld"
73 # define UVuf "lu"
74 # endif
75 #endif
76
77 #ifndef NVef
78 # if defined(USE_LONG_DOUBLE) && defined(HAS_LONG_DOUBLE) && \
79 defined(PERL_PRIgldbl) /* Not very likely, but let's try anyway. */
80 # define NVgf PERL_PRIgldbl
81 # else
82 # define NVgf "g"
83 # endif
84 #endif
85
86 #ifndef INT2PTR
87
88 #if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
89 # define PTRV UV
90 # define INT2PTR(any,d) (any)(d)
91 #else
92 # if PTRSIZE == LONGSIZE
93 # define PTRV unsigned long
94 # else
95 # define PTRV unsigned
96 # endif
97 # define INT2PTR(any,d) (any)(PTRV)(d)
98 #endif
99 #define PTR2IV(p) INT2PTR(IV,p)
100
101 #endif /* !INT2PTR */
102
103 #ifndef SvPV_nolen
104 static char *
sv_2pv_nolen(pTHX_ register SV * sv)105 sv_2pv_nolen(pTHX_ register SV *sv)
106 {
107 STRLEN n_a;
108 return sv_2pv(sv, &n_a);
109 }
110 # define SvPV_nolen(sv) \
111 ((SvFLAGS(sv) & (SVf_POK)) == SVf_POK \
112 ? SvPVX(sv) : sv_2pv_nolen(sv))
113 #endif
114
115 #ifndef PerlProc_pause
116 # define PerlProc_pause() Pause()
117 #endif
118
119 /* Though the cpp define ITIMER_VIRTUAL is available the functionality
120 * is not supported in Cygwin as of August 2002, ditto for Win32.
121 * Neither are ITIMER_PROF or ITIMER_REALPROF implemented. --jhi
122 */
123 #if defined(__CYGWIN__) || defined(WIN32)
124 # undef ITIMER_VIRTUAL
125 # undef ITIMER_PROF
126 # undef ITIMER_REALPROF
127 #endif
128
129 /* 5.004 doesn't define PL_sv_undef */
130 #ifndef ATLEASTFIVEOHOHFIVE
131 #ifndef PL_sv_undef
132 #define PL_sv_undef sv_undef
133 #endif
134 #endif
135
136 #include "const-c.inc"
137
138 #ifdef WIN32
139
140 #ifndef HAS_GETTIMEOFDAY
141 # define HAS_GETTIMEOFDAY
142 #endif
143
144 /* shows up in winsock.h?
145 struct timeval {
146 long tv_sec;
147 long tv_usec;
148 }
149 */
150
151 typedef union {
152 unsigned __int64 ft_i64;
153 FILETIME ft_val;
154 } FT_t;
155
156 #define MY_CXT_KEY "Time::HiRes_" XS_VERSION
157
158 typedef struct {
159 unsigned long run_count;
160 unsigned __int64 base_ticks;
161 unsigned __int64 tick_frequency;
162 FT_t base_systime_as_filetime;
163 } my_cxt_t;
164
165 START_MY_CXT
166
167 /* Number of 100 nanosecond units from 1/1/1601 to 1/1/1970 */
168 #ifdef __GNUC__
169 #define Const64(x) x##LL
170 #else
171 #define Const64(x) x##i64
172 #endif
173 #define EPOCH_BIAS Const64(116444736000000000)
174
175 /* NOTE: This does not compute the timezone info (doing so can be expensive,
176 * and appears to be unsupported even by glibc) */
177
178 /* dMY_CXT needs a Perl context and we don't want to call PERL_GET_CONTEXT
179 for performance reasons */
180
181 #undef gettimeofday
182 #define gettimeofday(tp, not_used) _gettimeofday(aTHX_ tp, not_used)
183
184 /* If the performance counter delta drifts more than 0.5 seconds from the
185 * system time then we recalibrate to the system time. This means we may
186 * move *backwards* in time! */
187
188 #define MAX_DIFF Const64(5000000)
189
190 static int
_gettimeofday(pTHX_ struct timeval * tp,void * not_used)191 _gettimeofday(pTHX_ struct timeval *tp, void *not_used)
192 {
193 dMY_CXT;
194
195 unsigned __int64 ticks;
196 FT_t ft;
197
198 if (MY_CXT.run_count++) {
199 __int64 diff;
200 FT_t filtim;
201 GetSystemTimeAsFileTime(&filtim.ft_val);
202 QueryPerformanceCounter((LARGE_INTEGER*)&ticks);
203 ticks -= MY_CXT.base_ticks;
204 ft.ft_i64 = MY_CXT.base_systime_as_filetime.ft_i64
205 + Const64(10000000) * (ticks / MY_CXT.tick_frequency)
206 +(Const64(10000000) * (ticks % MY_CXT.tick_frequency)) / MY_CXT.tick_frequency;
207 diff = ft.ft_i64 - MY_CXT.base_systime_as_filetime.ft_i64;
208 if (diff < -MAX_DIFF || diff > MAX_DIFF) {
209 MY_CXT.base_ticks = ticks;
210 ft.ft_i64 = filtim.ft_i64;
211 }
212 }
213 else {
214 QueryPerformanceFrequency((LARGE_INTEGER*)&MY_CXT.tick_frequency);
215 QueryPerformanceCounter((LARGE_INTEGER*)&MY_CXT.base_ticks);
216 GetSystemTimeAsFileTime(&MY_CXT.base_systime_as_filetime.ft_val);
217 ft.ft_i64 = MY_CXT.base_systime_as_filetime.ft_i64;
218 }
219
220 /* seconds since epoch */
221 tp->tv_sec = (long)((ft.ft_i64 - EPOCH_BIAS) / Const64(10000000));
222
223 /* microseconds remaining */
224 tp->tv_usec = (long)((ft.ft_i64 / Const64(10)) % Const64(1000000));
225
226 return 0;
227 }
228 #endif
229
230 #if defined(WIN32) && !defined(ATLEASTFIVEOHOHFIVE)
231 static unsigned int
sleep(unsigned int t)232 sleep(unsigned int t)
233 {
234 Sleep(t*1000);
235 return 0;
236 }
237 #endif
238
239 #if !defined(HAS_GETTIMEOFDAY) && defined(VMS)
240 #define HAS_GETTIMEOFDAY
241
242 #include <lnmdef.h>
243 #include <time.h> /* gettimeofday */
244 #include <stdlib.h> /* qdiv */
245 #include <starlet.h> /* sys$gettim */
246 #include <descrip.h>
247 #ifdef __VAX
248 #include <lib$routines.h> /* lib$ediv() */
249 #endif
250
251 /*
252 VMS binary time is expressed in 100 nano-seconds since
253 system base time which is 17-NOV-1858 00:00:00.00
254 */
255
256 #define DIV_100NS_TO_SECS 10000000L
257 #define DIV_100NS_TO_USECS 10L
258
259 /*
260 gettimeofday is supposed to return times since the epoch
261 so need to determine this in terms of VMS base time
262 */
263 static $DESCRIPTOR(dscepoch,"01-JAN-1970 00:00:00.00");
264
265 #ifdef __VAX
266 static long base_adjust[2]={0L,0L};
267 #else
268 static __int64 base_adjust=0;
269 #endif
270
271 /*
272
273 If we don't have gettimeofday, then likely we are on a VMS machine that
274 operates on local time rather than UTC...so we have to zone-adjust.
275 This code gleefully swiped from VMS.C
276
277 */
278 /* method used to handle UTC conversions:
279 * 1 == CRTL gmtime(); 2 == SYS$TIMEZONE_DIFFERENTIAL; 3 == no correction
280 */
281 static int gmtime_emulation_type;
282 /* number of secs to add to UTC POSIX-style time to get local time */
283 static long int utc_offset_secs;
284 static struct dsc$descriptor_s fildevdsc =
285 { 12, DSC$K_DTYPE_T, DSC$K_CLASS_S, "LNM$FILE_DEV" };
286 static struct dsc$descriptor_s *fildev[] = { &fildevdsc, NULL };
287
toutc_dst(time_t loc)288 static time_t toutc_dst(time_t loc) {
289 struct tm *rsltmp;
290
291 if ((rsltmp = localtime(&loc)) == NULL) return -1;
292 loc -= utc_offset_secs;
293 if (rsltmp->tm_isdst) loc -= 3600;
294 return loc;
295 }
296
toloc_dst(time_t utc)297 static time_t toloc_dst(time_t utc) {
298 struct tm *rsltmp;
299
300 utc += utc_offset_secs;
301 if ((rsltmp = localtime(&utc)) == NULL) return -1;
302 if (rsltmp->tm_isdst) utc += 3600;
303 return utc;
304 }
305
306 #define _toutc(secs) ((secs) == (time_t) -1 ? (time_t) -1 : \
307 ((gmtime_emulation_type || timezone_setup()), \
308 (gmtime_emulation_type == 1 ? toutc_dst(secs) : \
309 ((secs) - utc_offset_secs))))
310
311 #define _toloc(secs) ((secs) == (time_t) -1 ? (time_t) -1 : \
312 ((gmtime_emulation_type || timezone_setup()), \
313 (gmtime_emulation_type == 1 ? toloc_dst(secs) : \
314 ((secs) + utc_offset_secs))))
315
316 static int
timezone_setup(void)317 timezone_setup(void)
318 {
319 struct tm *tm_p;
320
321 if (gmtime_emulation_type == 0) {
322 int dstnow;
323 time_t base = 15 * 86400; /* 15jan71; to avoid month/year ends between */
324 /* results of calls to gmtime() and localtime() */
325 /* for same &base */
326
327 gmtime_emulation_type++;
328 if ((tm_p = gmtime(&base)) == NULL) { /* CRTL gmtime() is a fake */
329 char off[LNM$C_NAMLENGTH+1];;
330
331 gmtime_emulation_type++;
332 if (!Perl_vmstrnenv("SYS$TIMEZONE_DIFFERENTIAL",off,0,fildev,0)) {
333 gmtime_emulation_type++;
334 utc_offset_secs = 0;
335 Perl_warn(aTHX_ "no UTC offset information; assuming local time is UTC");
336 }
337 else { utc_offset_secs = atol(off); }
338 }
339 else { /* We've got a working gmtime() */
340 struct tm gmt, local;
341
342 gmt = *tm_p;
343 tm_p = localtime(&base);
344 local = *tm_p;
345 utc_offset_secs = (local.tm_mday - gmt.tm_mday) * 86400;
346 utc_offset_secs += (local.tm_hour - gmt.tm_hour) * 3600;
347 utc_offset_secs += (local.tm_min - gmt.tm_min) * 60;
348 utc_offset_secs += (local.tm_sec - gmt.tm_sec);
349 }
350 }
351 return 1;
352 }
353
354
355 int
gettimeofday(struct timeval * tp,void * tpz)356 gettimeofday (struct timeval *tp, void *tpz)
357 {
358 long ret;
359 #ifdef __VAX
360 long quad[2];
361 long quad1[2];
362 long div_100ns_to_secs;
363 long div_100ns_to_usecs;
364 long quo,rem;
365 long quo1,rem1;
366 #else
367 __int64 quad;
368 __qdiv_t ans1,ans2;
369 #endif
370 /*
371 In case of error, tv_usec = 0 and tv_sec = VMS condition code.
372 The return from function is also set to -1.
373 This is not exactly as per the manual page.
374 */
375
376 tp->tv_usec = 0;
377
378 #ifdef __VAX
379 if (base_adjust[0]==0 && base_adjust[1]==0) {
380 #else
381 if (base_adjust==0) { /* Need to determine epoch adjustment */
382 #endif
383 ret=sys$bintim(&dscepoch,&base_adjust);
384 if (1 != (ret &&1)) {
385 tp->tv_sec = ret;
386 return -1;
387 }
388 }
389
390 ret=sys$gettim(&quad); /* Get VMS system time */
391 if ((1 && ret) == 1) {
392 #ifdef __VAX
393 quad[0] -= base_adjust[0]; /* convert to epoch offset */
394 quad[1] -= base_adjust[1]; /* convert 2nd half of quadword */
395 div_100ns_to_secs = DIV_100NS_TO_SECS;
396 div_100ns_to_usecs = DIV_100NS_TO_USECS;
397 lib$ediv(&div_100ns_to_secs,&quad,&quo,&rem);
398 quad1[0] = rem;
399 quad1[1] = 0L;
400 lib$ediv(&div_100ns_to_usecs,&quad1,&quo1,&rem1);
401 tp->tv_sec = quo; /* Whole seconds */
402 tp->tv_usec = quo1; /* Micro-seconds */
403 #else
404 quad -= base_adjust; /* convert to epoch offset */
405 ans1=qdiv(quad,DIV_100NS_TO_SECS);
406 ans2=qdiv(ans1.rem,DIV_100NS_TO_USECS);
407 tp->tv_sec = ans1.quot; /* Whole seconds */
408 tp->tv_usec = ans2.quot; /* Micro-seconds */
409 #endif
410 } else {
411 tp->tv_sec = ret;
412 return -1;
413 }
414 # ifdef VMSISH_TIME
415 # ifdef RTL_USES_UTC
416 if (VMSISH_TIME) tp->tv_sec = _toloc(tp->tv_sec);
417 # else
418 if (!VMSISH_TIME) tp->tv_sec = _toutc(tp->tv_sec);
419 # endif
420 # endif
421 return 0;
422 }
423 #endif
424
425
426 /* Do not use H A S _ N A N O S L E E P
427 * so that Perl Configure doesn't scan for it.
428 * The TIME_HIRES_NANOSLEEP is set by Makefile.PL. */
429 #if !defined(HAS_USLEEP) && defined(TIME_HIRES_NANOSLEEP)
430 #define HAS_USLEEP
431 #define usleep hrt_nanosleep /* could conflict with ncurses for static build */
432
433 void
434 hrt_nanosleep(unsigned long usec)
435 {
436 struct timespec res;
437 res.tv_sec = usec/1000/1000;
438 res.tv_nsec = ( usec - res.tv_sec*1000*1000 ) * 1000;
439 nanosleep(&res, NULL);
440 }
441 #endif
442
443
444 #if !defined(HAS_USLEEP) && defined(HAS_SELECT)
445 #ifndef SELECT_IS_BROKEN
446 #define HAS_USLEEP
447 #define usleep hrt_usleep /* could conflict with ncurses for static build */
448
449 void
450 hrt_usleep(unsigned long usec)
451 {
452 struct timeval tv;
453 tv.tv_sec = 0;
454 tv.tv_usec = usec;
455 select(0, (Select_fd_set_t)NULL, (Select_fd_set_t)NULL,
456 (Select_fd_set_t)NULL, &tv);
457 }
458 #endif
459 #endif
460
461 #if !defined(HAS_USLEEP) && defined(WIN32)
462 #define HAS_USLEEP
463 #define usleep hrt_usleep /* could conflict with ncurses for static build */
464
465 void
466 hrt_usleep(unsigned long usec)
467 {
468 long msec;
469 msec = usec / 1000;
470 Sleep (msec);
471 }
472 #endif
473
474
475 #if !defined(HAS_UALARM) && defined(HAS_SETITIMER)
476 #define HAS_UALARM
477 #define ualarm hrt_ualarm /* could conflict with ncurses for static build */
478
479 int
480 hrt_ualarm(int usec, int interval)
481 {
482 struct itimerval itv;
483 itv.it_value.tv_sec = usec / 1000000;
484 itv.it_value.tv_usec = usec % 1000000;
485 itv.it_interval.tv_sec = interval / 1000000;
486 itv.it_interval.tv_usec = interval % 1000000;
487 return setitimer(ITIMER_REAL, &itv, 0);
488 }
489 #endif
490
491 #if !defined(HAS_UALARM) && defined(VMS)
492 #define HAS_UALARM
493 #define ualarm vms_ualarm
494
495 #include <lib$routines.h>
496 #include <ssdef.h>
497 #include <starlet.h>
498 #include <descrip.h>
499 #include <signal.h>
500 #include <jpidef.h>
501 #include <psldef.h>
502
503 #define VMSERR(s) (!((s)&1))
504
505 static void
506 us_to_VMS(useconds_t mseconds, unsigned long v[])
507 {
508 int iss;
509 unsigned long qq[2];
510
511 qq[0] = mseconds;
512 qq[1] = 0;
513 v[0] = v[1] = 0;
514
515 iss = lib$addx(qq,qq,qq);
516 if (VMSERR(iss)) lib$signal(iss);
517 iss = lib$subx(v,qq,v);
518 if (VMSERR(iss)) lib$signal(iss);
519 iss = lib$addx(qq,qq,qq);
520 if (VMSERR(iss)) lib$signal(iss);
521 iss = lib$subx(v,qq,v);
522 if (VMSERR(iss)) lib$signal(iss);
523 iss = lib$subx(v,qq,v);
524 if (VMSERR(iss)) lib$signal(iss);
525 }
526
527 static int
528 VMS_to_us(unsigned long v[])
529 {
530 int iss;
531 unsigned long div=10,quot, rem;
532
533 iss = lib$ediv(&div,v,",&rem);
534 if (VMSERR(iss)) lib$signal(iss);
535
536 return quot;
537 }
538
539 typedef unsigned short word;
540 typedef struct _ualarm {
541 int function;
542 int repeat;
543 unsigned long delay[2];
544 unsigned long interval[2];
545 unsigned long remain[2];
546 } Alarm;
547
548
549 static int alarm_ef;
550 static Alarm *a0, alarm_base;
551 #define UAL_NULL 0
552 #define UAL_SET 1
553 #define UAL_CLEAR 2
554 #define UAL_ACTIVE 4
555 static void ualarm_AST(Alarm *a);
556
557 static int
558 vms_ualarm(int mseconds, int interval)
559 {
560 Alarm *a, abase;
561 struct item_list3 {
562 word length;
563 word code;
564 void *bufaddr;
565 void *retlenaddr;
566 } ;
567 static struct item_list3 itmlst[2];
568 static int first = 1;
569 unsigned long asten;
570 int iss, enabled;
571
572 if (first) {
573 first = 0;
574 itmlst[0].code = JPI$_ASTEN;
575 itmlst[0].length = sizeof(asten);
576 itmlst[0].retlenaddr = NULL;
577 itmlst[1].code = 0;
578 itmlst[1].length = 0;
579 itmlst[1].bufaddr = NULL;
580 itmlst[1].retlenaddr = NULL;
581
582 iss = lib$get_ef(&alarm_ef);
583 if (VMSERR(iss)) lib$signal(iss);
584
585 a0 = &alarm_base;
586 a0->function = UAL_NULL;
587 }
588 itmlst[0].bufaddr = &asten;
589
590 iss = sys$getjpiw(0,0,0,itmlst,0,0,0);
591 if (VMSERR(iss)) lib$signal(iss);
592 if (!(asten&0x08)) return -1;
593
594 a = &abase;
595 if (mseconds) {
596 a->function = UAL_SET;
597 } else {
598 a->function = UAL_CLEAR;
599 }
600
601 us_to_VMS(mseconds, a->delay);
602 if (interval) {
603 us_to_VMS(interval, a->interval);
604 a->repeat = 1;
605 } else
606 a->repeat = 0;
607
608 iss = sys$clref(alarm_ef);
609 if (VMSERR(iss)) lib$signal(iss);
610
611 iss = sys$dclast(ualarm_AST,a,0);
612 if (VMSERR(iss)) lib$signal(iss);
613
614 iss = sys$waitfr(alarm_ef);
615 if (VMSERR(iss)) lib$signal(iss);
616
617 if (a->function == UAL_ACTIVE)
618 return VMS_to_us(a->remain);
619 else
620 return 0;
621 }
622
623
624
625 static void
626 ualarm_AST(Alarm *a)
627 {
628 int iss;
629 unsigned long now[2];
630
631 iss = sys$gettim(now);
632 if (VMSERR(iss)) lib$signal(iss);
633
634 if (a->function == UAL_SET || a->function == UAL_CLEAR) {
635 if (a0->function == UAL_ACTIVE) {
636 iss = sys$cantim(a0,PSL$C_USER);
637 if (VMSERR(iss)) lib$signal(iss);
638
639 iss = lib$subx(a0->remain, now, a->remain);
640 if (VMSERR(iss)) lib$signal(iss);
641
642 if (a->remain[1] & 0x80000000)
643 a->remain[0] = a->remain[1] = 0;
644 }
645
646 if (a->function == UAL_SET) {
647 a->function = a0->function;
648 a0->function = UAL_ACTIVE;
649 a0->repeat = a->repeat;
650 if (a0->repeat) {
651 a0->interval[0] = a->interval[0];
652 a0->interval[1] = a->interval[1];
653 }
654 a0->delay[0] = a->delay[0];
655 a0->delay[1] = a->delay[1];
656
657 iss = lib$subx(now, a0->delay, a0->remain);
658 if (VMSERR(iss)) lib$signal(iss);
659
660 iss = sys$setimr(0,a0->delay,ualarm_AST,a0);
661 if (VMSERR(iss)) lib$signal(iss);
662 } else {
663 a->function = a0->function;
664 a0->function = UAL_NULL;
665 }
666 iss = sys$setef(alarm_ef);
667 if (VMSERR(iss)) lib$signal(iss);
668 } else if (a->function == UAL_ACTIVE) {
669 if (a->repeat) {
670 iss = lib$subx(now, a->interval, a->remain);
671 if (VMSERR(iss)) lib$signal(iss);
672
673 iss = sys$setimr(0,a->interval,ualarm_AST,a);
674 if (VMSERR(iss)) lib$signal(iss);
675 } else {
676 a->function = UAL_NULL;
677 }
678 iss = sys$wake(0,0);
679 if (VMSERR(iss)) lib$signal(iss);
680 lib$signal(SS$_ASTFLT);
681 } else {
682 lib$signal(SS$_BADPARAM);
683 }
684 }
685
686 #endif /* !HAS_UALARM && VMS */
687
688 #ifdef HAS_GETTIMEOFDAY
689
690 static int
691 myU2time(pTHX_ UV *ret)
692 {
693 struct timeval Tp;
694 int status;
695 status = gettimeofday (&Tp, NULL);
696 ret[0] = Tp.tv_sec;
697 ret[1] = Tp.tv_usec;
698 return status;
699 }
700
701 static NV
702 myNVtime()
703 {
704 #ifdef WIN32
705 dTHX;
706 #endif
707 struct timeval Tp;
708 int status;
709 status = gettimeofday (&Tp, NULL);
710 return status == 0 ? Tp.tv_sec + (Tp.tv_usec / 1000000.) : -1.0;
711 }
712
713 #endif
714
715 MODULE = Time::HiRes PACKAGE = Time::HiRes
716
717 PROTOTYPES: ENABLE
718
719 BOOT:
720 {
721 #ifdef MY_CXT_KEY
722 MY_CXT_INIT;
723 #endif
724 #ifdef ATLEASTFIVEOHOHFIVE
725 #ifdef HAS_GETTIMEOFDAY
726 {
727 UV auv[2];
728 hv_store(PL_modglobal, "Time::NVtime", 12, newSViv(PTR2IV(myNVtime)), 0);
729 if (myU2time(aTHX_ auv) == 0)
730 hv_store(PL_modglobal, "Time::U2time", 12, newSViv((IV) auv[0]), 0);
731 }
732 #endif
733 #endif
734 }
735
736 #if defined(USE_ITHREADS) && defined(MY_CXT_KEY)
737
738 void
739 CLONE(...)
740 CODE:
741 MY_CXT_CLONE;
742
743 #endif
744
745 INCLUDE: const-xs.inc
746
747 #if defined(HAS_USLEEP) && defined(HAS_GETTIMEOFDAY)
748
749 NV
750 usleep(useconds)
751 NV useconds
752 PREINIT:
753 struct timeval Ta, Tb;
754 CODE:
755 gettimeofday(&Ta, NULL);
756 if (items > 0) {
757 if (useconds > 1E6) {
758 IV seconds = (IV) (useconds / 1E6);
759 /* If usleep() has been implemented using setitimer()
760 * then this contortion is unnecessary-- but usleep()
761 * may be implemented in some other way, so let's contort. */
762 if (seconds) {
763 sleep(seconds);
764 useconds -= 1E6 * seconds;
765 }
766 } else if (useconds < 0.0)
767 croak("Time::HiRes::usleep(%"NVgf"): negative time not invented yet", useconds);
768 usleep((U32)useconds);
769 } else
770 PerlProc_pause();
771 gettimeofday(&Tb, NULL);
772 #if 0
773 printf("[%ld %ld] [%ld %ld]\n", Tb.tv_sec, Tb.tv_usec, Ta.tv_sec, Ta.tv_usec);
774 #endif
775 RETVAL = 1E6*(Tb.tv_sec-Ta.tv_sec)+(NV)((IV)Tb.tv_usec-(IV)Ta.tv_usec);
776
777 OUTPUT:
778 RETVAL
779
780 NV
781 sleep(...)
782 PREINIT:
783 struct timeval Ta, Tb;
784 CODE:
785 gettimeofday(&Ta, NULL);
786 if (items > 0) {
787 NV seconds = SvNV(ST(0));
788 if (seconds >= 0.0) {
789 UV useconds = (UV)(1E6 * (seconds - (UV)seconds));
790 if (seconds >= 1.0)
791 sleep((U32)seconds);
792 if ((IV)useconds < 0) {
793 #if defined(__sparc64__) && defined(__GNUC__)
794 /* Sparc64 gcc 2.95.3 (e.g. on NetBSD) has a bug
795 * where (0.5 - (UV)(0.5)) will under certain
796 * circumstances (if the double is cast to UV more
797 * than once?) evaluate to -0.5, instead of 0.5. */
798 useconds = -(IV)useconds;
799 #endif
800 if ((IV)useconds < 0)
801 croak("Time::HiRes::sleep(%"NVgf"): internal error: useconds < 0 (unsigned %"UVuf" signed %"IVdf")", seconds, useconds, (IV)useconds);
802 }
803 usleep(useconds);
804 } else
805 croak("Time::HiRes::sleep(%"NVgf"): negative time not invented yet", seconds);
806 } else
807 PerlProc_pause();
808 gettimeofday(&Tb, NULL);
809 #if 0
810 printf("[%ld %ld] [%ld %ld]\n", Tb.tv_sec, Tb.tv_usec, Ta.tv_sec, Ta.tv_usec);
811 #endif
812 RETVAL = (NV)(Tb.tv_sec-Ta.tv_sec)+0.000001*(NV)(Tb.tv_usec-Ta.tv_usec);
813
814 OUTPUT:
815 RETVAL
816
817 #endif
818
819 #ifdef HAS_UALARM
820
821 int
822 ualarm(useconds,interval=0)
823 int useconds
824 int interval
825 CODE:
826 if (useconds < 0 || interval < 0)
827 croak("Time::HiRes::ualarm(%d, %d): negative time not invented yet", useconds, interval);
828 RETVAL = ualarm(useconds, interval);
829
830 OUTPUT:
831 RETVAL
832
833 NV
834 alarm(seconds,interval=0)
835 NV seconds
836 NV interval
837 CODE:
838 if (seconds < 0.0 || interval < 0.0)
839 croak("Time::HiRes::alarm(%"NVgf", %"NVgf"): negative time not invented yet", seconds, interval);
840 RETVAL = (NV)ualarm(seconds * 1000000,
841 interval * 1000000) / 1E6;
842
843 OUTPUT:
844 RETVAL
845
846 #endif
847
848 #ifdef HAS_GETTIMEOFDAY
849 # ifdef MACOS_TRADITIONAL /* fix epoch TZ and use unsigned time_t */
850 void
851 gettimeofday()
852 PREINIT:
853 struct timeval Tp;
854 struct timezone Tz;
855 PPCODE:
856 int status;
857 status = gettimeofday (&Tp, &Tz);
858 Tp.tv_sec += Tz.tz_minuteswest * 60; /* adjust for TZ */
859
860 if (GIMME == G_ARRAY) {
861 EXTEND(sp, 2);
862 /* Mac OS (Classic) has unsigned time_t */
863 PUSHs(sv_2mortal(newSVuv(Tp.tv_sec)));
864 PUSHs(sv_2mortal(newSViv(Tp.tv_usec)));
865 } else {
866 EXTEND(sp, 1);
867 PUSHs(sv_2mortal(newSVnv(Tp.tv_sec + (Tp.tv_usec / 1000000.0))));
868 }
869
870 NV
871 time()
872 PREINIT:
873 struct timeval Tp;
874 struct timezone Tz;
875 CODE:
876 int status;
877 status = gettimeofday (&Tp, &Tz);
878 Tp.tv_sec += Tz.tz_minuteswest * 60; /* adjust for TZ */
879 RETVAL = Tp.tv_sec + (Tp.tv_usec / 1000000.0);
880 OUTPUT:
881 RETVAL
882
883 # else /* MACOS_TRADITIONAL */
884 void
885 gettimeofday()
886 PREINIT:
887 struct timeval Tp;
888 PPCODE:
889 int status;
890 status = gettimeofday (&Tp, NULL);
891 if (GIMME == G_ARRAY) {
892 EXTEND(sp, 2);
893 PUSHs(sv_2mortal(newSViv(Tp.tv_sec)));
894 PUSHs(sv_2mortal(newSViv(Tp.tv_usec)));
895 } else {
896 EXTEND(sp, 1);
897 PUSHs(sv_2mortal(newSVnv(Tp.tv_sec + (Tp.tv_usec / 1000000.0))));
898 }
899
900 NV
901 time()
902 PREINIT:
903 struct timeval Tp;
904 CODE:
905 int status;
906 status = gettimeofday (&Tp, NULL);
907 RETVAL = Tp.tv_sec + (Tp.tv_usec / 1000000.);
908 OUTPUT:
909 RETVAL
910
911 # endif /* MACOS_TRADITIONAL */
912 #endif
913
914 #if defined(HAS_GETITIMER) && defined(HAS_SETITIMER)
915
916 #define TV2NV(tv) ((NV)((tv).tv_sec) + 0.000001 * (NV)((tv).tv_usec))
917
918 void
919 setitimer(which, seconds, interval = 0)
920 int which
921 NV seconds
922 NV interval
923 PREINIT:
924 struct itimerval newit;
925 struct itimerval oldit;
926 PPCODE:
927 if (seconds < 0.0 || interval < 0.0)
928 croak("Time::HiRes::setitimer(%"IVdf", %"NVgf", %"NVgf"): negative time not invented yet", (IV)which, seconds, interval);
929 newit.it_value.tv_sec = seconds;
930 newit.it_value.tv_usec =
931 (seconds - (NV)newit.it_value.tv_sec) * 1000000.0;
932 newit.it_interval.tv_sec = interval;
933 newit.it_interval.tv_usec =
934 (interval - (NV)newit.it_interval.tv_sec) * 1000000.0;
935 if (setitimer(which, &newit, &oldit) == 0) {
936 EXTEND(sp, 1);
937 PUSHs(sv_2mortal(newSVnv(TV2NV(oldit.it_value))));
938 if (GIMME == G_ARRAY) {
939 EXTEND(sp, 1);
940 PUSHs(sv_2mortal(newSVnv(TV2NV(oldit.it_interval))));
941 }
942 }
943
944 void
945 getitimer(which)
946 int which
947 PREINIT:
948 struct itimerval nowit;
949 PPCODE:
950 if (getitimer(which, &nowit) == 0) {
951 EXTEND(sp, 1);
952 PUSHs(sv_2mortal(newSVnv(TV2NV(nowit.it_value))));
953 if (GIMME == G_ARRAY) {
954 EXTEND(sp, 1);
955 PUSHs(sv_2mortal(newSVnv(TV2NV(nowit.it_interval))));
956 }
957 }
958
959 #endif
960
961