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[p5sagit/p5-mst-13.2.git] / ext / Time / HiRes / HiRes.xs
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dcf686c9 1#ifdef __cplusplus
2extern "C" {
3#endif
4#include "EXTERN.h"
5#include "perl.h"
6#include "XSUB.h"
7#ifdef WIN32
8#include <time.h>
9#else
10#include <sys/time.h>
11#endif
36df99d6 12#ifdef HAS_SELECT
13# ifdef I_SYS_SELECT
14# include <sys/select.h>
15# endif
16#endif
dcf686c9 17#ifdef __cplusplus
18}
19#endif
20
3f2ee006 21#ifndef aTHX_
22# define aTHX_
23# define pTHX_
24#endif
25
26#ifndef NVTYPE
27# if defined(USE_LONG_DOUBLE) && defined(HAS_LONG_DOUBLE)
28# define NVTYPE long double
29# else
30# define NVTYPE double
31# endif
32typedef NVTYPE NV;
33#endif
34
35#ifndef IVdf
36# ifdef IVSIZE
37# if IVSIZE == LONGSIZE
38# define IVdf "ld"
db0b859f 39# define UVuf "lu"
3f2ee006 40# else
41# if IVSIZE == INTSIZE
42# define IVdf "d"
db0b859f 43# define UVuf "u"
3f2ee006 44# endif
45# endif
46# else
47# define IVdf "ld"
48# endif
49#endif
50
51#ifndef NVef
52# if defined(USE_LONG_DOUBLE) && defined(HAS_LONG_DOUBLE) && \
53 defined(PERL_PRIgldbl) /* Not very likely, but let's try anyway. */
54# define NVgf PERL_PRIgldbl
55# else
56# define NVgf "g"
57# endif
58#endif
59
60#ifndef INT2PTR
61
62#if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
63# define PTRV UV
64# define INT2PTR(any,d) (any)(d)
65#else
66# if PTRSIZE == LONGSIZE
67# define PTRV unsigned long
68# else
69# define PTRV unsigned
70# endif
71# define INT2PTR(any,d) (any)(PTRV)(d)
72#endif
73#define PTR2IV(p) INT2PTR(IV,p)
74
75#endif /* !INT2PTR */
76
77#ifndef SvPV_nolen
78static char *
79sv_2pv_nolen(pTHX_ register SV *sv)
80{
81 STRLEN n_a;
82 return sv_2pv(sv, &n_a);
83}
84# define SvPV_nolen(sv) \
85 ((SvFLAGS(sv) & (SVf_POK)) == SVf_POK \
86 ? SvPVX(sv) : sv_2pv_nolen(sv))
87#endif
88
89#ifndef PerlProc_pause
90# define PerlProc_pause() Pause()
91#endif
92
93/* Though the cpp define ITIMER_VIRTUAL is available the functionality
94 * is not supported in Cygwin as of August 2002, ditto for Win32.
95 * Neither are ITIMER_PROF or ITIMER_REALPROF implemented. --jhi
96 */
97#if defined(__CYGWIN__) || defined(WIN32)
98# undef ITIMER_VIRTUAL
99# undef ITIMER_PROF
100# undef ITIMER_REALPROF
101#endif
102
98b50af3 103/* 5.004 doesn't define PL_sv_undef */
104#ifndef ATLEASTFIVEOHOHFIVE
105#ifndef PL_sv_undef
106#define PL_sv_undef sv_undef
3f2ee006 107#endif
3c72ec00 108#endif
3c72ec00 109
98b50af3 110#include "const-c.inc"
3c72ec00 111
fd44fdfd 112#if !defined(HAS_GETTIMEOFDAY) && defined(WIN32)
113#define HAS_GETTIMEOFDAY
114
6e3b076d 115/* shows up in winsock.h?
116struct timeval {
117 long tv_sec;
118 long tv_usec;
119}
120*/
121
fd44fdfd 122typedef union {
123 unsigned __int64 ft_i64;
124 FILETIME ft_val;
125} FT_t;
126
6e3b076d 127/* Number of 100 nanosecond units from 1/1/1601 to 1/1/1970 */
fd44fdfd 128#ifdef __GNUC__
129#define Const64(x) x##LL
130#else
131#define Const64(x) x##i64
132#endif
fd44fdfd 133#define EPOCH_BIAS Const64(116444736000000000)
134
135/* NOTE: This does not compute the timezone info (doing so can be expensive,
136 * and appears to be unsupported even by glibc) */
6e3b076d 137int
138gettimeofday (struct timeval *tp, void *not_used)
fd44fdfd 139{
140 FT_t ft;
141
142 /* this returns time in 100-nanosecond units (i.e. tens of usecs) */
143 GetSystemTimeAsFileTime(&ft.ft_val);
144
145 /* seconds since epoch */
146 tp->tv_sec = (long)((ft.ft_i64 - EPOCH_BIAS) / Const64(10000000));
147
148 /* microseconds remaining */
149 tp->tv_usec = (long)((ft.ft_i64 / Const64(10)) % Const64(1000000));
150
151 return 0;
152}
6e3b076d 153#endif
fd44fdfd 154
dcf686c9 155#if !defined(HAS_GETTIMEOFDAY) && defined(VMS)
156#define HAS_GETTIMEOFDAY
157
9b6f56ad 158#include <lnmdef.h>
dcf686c9 159#include <time.h> /* gettimeofday */
160#include <stdlib.h> /* qdiv */
161#include <starlet.h> /* sys$gettim */
162#include <descrip.h>
3785778e 163#ifdef __VAX
164#include <lib$routines.h> /* lib$ediv() */
165#endif
dcf686c9 166
167/*
168 VMS binary time is expressed in 100 nano-seconds since
169 system base time which is 17-NOV-1858 00:00:00.00
170*/
171
172#define DIV_100NS_TO_SECS 10000000L
173#define DIV_100NS_TO_USECS 10L
174
175/*
176 gettimeofday is supposed to return times since the epoch
177 so need to determine this in terms of VMS base time
178*/
179static $DESCRIPTOR(dscepoch,"01-JAN-1970 00:00:00.00");
180
5cdb7193 181#ifdef __VAX
3785778e 182static long base_adjust[2]={0L,0L};
5cdb7193 183#else
dcf686c9 184static __int64 base_adjust=0;
5cdb7193 185#endif
dcf686c9 186
9b6f56ad 187/*
188
189 If we don't have gettimeofday, then likely we are on a VMS machine that
190 operates on local time rather than UTC...so we have to zone-adjust.
191 This code gleefully swiped from VMS.C
192
193*/
194/* method used to handle UTC conversions:
195 * 1 == CRTL gmtime(); 2 == SYS$TIMEZONE_DIFFERENTIAL; 3 == no correction
196 */
197static int gmtime_emulation_type;
198/* number of secs to add to UTC POSIX-style time to get local time */
199static long int utc_offset_secs;
200static struct dsc$descriptor_s fildevdsc =
201 { 12, DSC$K_DTYPE_T, DSC$K_CLASS_S, "LNM$FILE_DEV" };
202static struct dsc$descriptor_s *fildev[] = { &fildevdsc, NULL };
203
204static time_t toutc_dst(time_t loc) {
205 struct tm *rsltmp;
206
207 if ((rsltmp = localtime(&loc)) == NULL) return -1;
208 loc -= utc_offset_secs;
209 if (rsltmp->tm_isdst) loc -= 3600;
210 return loc;
211}
212
213static time_t toloc_dst(time_t utc) {
214 struct tm *rsltmp;
215
216 utc += utc_offset_secs;
217 if ((rsltmp = localtime(&utc)) == NULL) return -1;
218 if (rsltmp->tm_isdst) utc += 3600;
219 return utc;
220}
221
222#define _toutc(secs) ((secs) == (time_t) -1 ? (time_t) -1 : \
223 ((gmtime_emulation_type || timezone_setup()), \
224 (gmtime_emulation_type == 1 ? toutc_dst(secs) : \
225 ((secs) - utc_offset_secs))))
226
227#define _toloc(secs) ((secs) == (time_t) -1 ? (time_t) -1 : \
228 ((gmtime_emulation_type || timezone_setup()), \
229 (gmtime_emulation_type == 1 ? toloc_dst(secs) : \
230 ((secs) + utc_offset_secs))))
231
232static int
233timezone_setup(void)
234{
235 struct tm *tm_p;
236
237 if (gmtime_emulation_type == 0) {
238 int dstnow;
239 time_t base = 15 * 86400; /* 15jan71; to avoid month/year ends between */
240 /* results of calls to gmtime() and localtime() */
241 /* for same &base */
242
243 gmtime_emulation_type++;
244 if ((tm_p = gmtime(&base)) == NULL) { /* CRTL gmtime() is a fake */
245 char off[LNM$C_NAMLENGTH+1];;
246
247 gmtime_emulation_type++;
248 if (!Perl_vmstrnenv("SYS$TIMEZONE_DIFFERENTIAL",off,0,fildev,0)) {
249 gmtime_emulation_type++;
250 utc_offset_secs = 0;
251 Perl_warn(aTHX_ "no UTC offset information; assuming local time is UTC");
252 }
253 else { utc_offset_secs = atol(off); }
254 }
255 else { /* We've got a working gmtime() */
256 struct tm gmt, local;
257
258 gmt = *tm_p;
259 tm_p = localtime(&base);
260 local = *tm_p;
261 utc_offset_secs = (local.tm_mday - gmt.tm_mday) * 86400;
262 utc_offset_secs += (local.tm_hour - gmt.tm_hour) * 3600;
263 utc_offset_secs += (local.tm_min - gmt.tm_min) * 60;
264 utc_offset_secs += (local.tm_sec - gmt.tm_sec);
265 }
266 }
267 return 1;
268}
269
270
dcf686c9 271int
272gettimeofday (struct timeval *tp, void *tpz)
273{
274 long ret;
5cdb7193 275#ifdef __VAX
3785778e 276 long quad[2];
277 long quad1[2];
278 long div_100ns_to_secs;
279 long div_100ns_to_usecs;
280 long quo,rem;
281 long quo1,rem1;
5cdb7193 282#else
dcf686c9 283 __int64 quad;
284 __qdiv_t ans1,ans2;
5cdb7193 285#endif
dcf686c9 286/*
287 In case of error, tv_usec = 0 and tv_sec = VMS condition code.
288 The return from function is also set to -1.
289 This is not exactly as per the manual page.
290*/
291
292 tp->tv_usec = 0;
293
3785778e 294#ifdef __VAX
295 if (base_adjust[0]==0 && base_adjust[1]==0) {
296#else
dcf686c9 297 if (base_adjust==0) { /* Need to determine epoch adjustment */
3785778e 298#endif
dcf686c9 299 ret=sys$bintim(&dscepoch,&base_adjust);
300 if (1 != (ret &&1)) {
301 tp->tv_sec = ret;
302 return -1;
303 }
304 }
305
306 ret=sys$gettim(&quad); /* Get VMS system time */
307 if ((1 && ret) == 1) {
5cdb7193 308#ifdef __VAX
3785778e 309 quad[0] -= base_adjust[0]; /* convert to epoch offset */
310 quad[1] -= base_adjust[1]; /* convert 2nd half of quadword */
311 div_100ns_to_secs = DIV_100NS_TO_SECS;
312 div_100ns_to_usecs = DIV_100NS_TO_USECS;
313 lib$ediv(&div_100ns_to_secs,&quad,&quo,&rem);
314 quad1[0] = rem;
315 quad1[1] = 0L;
316 lib$ediv(&div_100ns_to_usecs,&quad1,&quo1,&rem1);
317 tp->tv_sec = quo; /* Whole seconds */
318 tp->tv_usec = quo1; /* Micro-seconds */
5cdb7193 319#else
3785778e 320 quad -= base_adjust; /* convert to epoch offset */
dcf686c9 321 ans1=qdiv(quad,DIV_100NS_TO_SECS);
322 ans2=qdiv(ans1.rem,DIV_100NS_TO_USECS);
323 tp->tv_sec = ans1.quot; /* Whole seconds */
324 tp->tv_usec = ans2.quot; /* Micro-seconds */
3785778e 325#endif
dcf686c9 326 } else {
327 tp->tv_sec = ret;
328 return -1;
329 }
9b6f56ad 330# ifdef VMSISH_TIME
331# ifdef RTL_USES_UTC
332 if (VMSISH_TIME) tp->tv_sec = _toloc(tp->tv_sec);
333# else
334 if (!VMSISH_TIME) tp->tv_sec = _toutc(tp->tv_sec);
335# endif
336# endif
dcf686c9 337 return 0;
338}
339#endif
340
3f2ee006 341
342#if !defined(HAS_USLEEP) && defined(HAS_NANOSLEEP)
343#define HAS_USLEEP
344#define usleep hrt_nanosleep /* could conflict with ncurses for static build */
345
346void
347hrt_nanosleep(unsigned long usec)
348{
349 struct timespec res;
350 res.tv_sec = usec/1000/1000;
351 res.tv_nsec = ( usec - res.tv_sec*1000*1000 ) * 1000;
352 nanosleep(&res, NULL);
353}
354#endif
355
356
dcf686c9 357#if !defined(HAS_USLEEP) && defined(HAS_SELECT)
358#ifndef SELECT_IS_BROKEN
359#define HAS_USLEEP
360#define usleep hrt_usleep /* could conflict with ncurses for static build */
361
362void
363hrt_usleep(unsigned long usec)
364{
365 struct timeval tv;
366 tv.tv_sec = 0;
367 tv.tv_usec = usec;
368 select(0, (Select_fd_set_t)NULL, (Select_fd_set_t)NULL,
369 (Select_fd_set_t)NULL, &tv);
370}
371#endif
372#endif
373
374#if !defined(HAS_USLEEP) && defined(WIN32)
375#define HAS_USLEEP
376#define usleep hrt_usleep /* could conflict with ncurses for static build */
377
378void
379hrt_usleep(unsigned long usec)
380{
381 long msec;
382 msec = usec / 1000;
383 Sleep (msec);
384}
385#endif
386
387
388#if !defined(HAS_UALARM) && defined(HAS_SETITIMER)
389#define HAS_UALARM
390#define ualarm hrt_ualarm /* could conflict with ncurses for static build */
391
392int
393hrt_ualarm(int usec, int interval)
394{
395 struct itimerval itv;
396 itv.it_value.tv_sec = usec / 1000000;
397 itv.it_value.tv_usec = usec % 1000000;
398 itv.it_interval.tv_sec = interval / 1000000;
399 itv.it_interval.tv_usec = interval % 1000000;
400 return setitimer(ITIMER_REAL, &itv, 0);
401}
402#endif
403
ca40fe49 404#if !defined(HAS_UALARM) && defined(VMS)
405#define HAS_UALARM
406#define ualarm vms_ualarm
407
408#include <lib$routines.h>
409#include <ssdef.h>
410#include <starlet.h>
411#include <descrip.h>
412#include <signal.h>
413#include <jpidef.h>
414#include <psldef.h>
415
416#define VMSERR(s) (!((s)&1))
417
418static void
419us_to_VMS(useconds_t mseconds, unsigned long v[])
420{
421 int iss;
422 unsigned long qq[2];
423
424 qq[0] = mseconds;
425 qq[1] = 0;
426 v[0] = v[1] = 0;
427
428 iss = lib$addx(qq,qq,qq);
429 if (VMSERR(iss)) lib$signal(iss);
430 iss = lib$subx(v,qq,v);
431 if (VMSERR(iss)) lib$signal(iss);
432 iss = lib$addx(qq,qq,qq);
433 if (VMSERR(iss)) lib$signal(iss);
434 iss = lib$subx(v,qq,v);
435 if (VMSERR(iss)) lib$signal(iss);
436 iss = lib$subx(v,qq,v);
437 if (VMSERR(iss)) lib$signal(iss);
438}
439
440static int
441VMS_to_us(unsigned long v[])
442{
443 int iss;
444 unsigned long div=10,quot, rem;
445
446 iss = lib$ediv(&div,v,&quot,&rem);
447 if (VMSERR(iss)) lib$signal(iss);
448
449 return quot;
450}
451
452typedef unsigned short word;
453typedef struct _ualarm {
454 int function;
455 int repeat;
456 unsigned long delay[2];
457 unsigned long interval[2];
458 unsigned long remain[2];
459} Alarm;
460
461
462static int alarm_ef;
463static Alarm *a0, alarm_base;
464#define UAL_NULL 0
465#define UAL_SET 1
466#define UAL_CLEAR 2
467#define UAL_ACTIVE 4
468static void ualarm_AST(Alarm *a);
469
470static int
471vms_ualarm(int mseconds, int interval)
472{
473 Alarm *a, abase;
474 struct item_list3 {
475 word length;
476 word code;
477 void *bufaddr;
478 void *retlenaddr;
479 } ;
480 static struct item_list3 itmlst[2];
481 static int first = 1;
482 unsigned long asten;
483 int iss, enabled;
484
485 if (first) {
486 first = 0;
487 itmlst[0].code = JPI$_ASTEN;
488 itmlst[0].length = sizeof(asten);
489 itmlst[0].retlenaddr = NULL;
490 itmlst[1].code = 0;
491 itmlst[1].length = 0;
492 itmlst[1].bufaddr = NULL;
493 itmlst[1].retlenaddr = NULL;
494
495 iss = lib$get_ef(&alarm_ef);
496 if (VMSERR(iss)) lib$signal(iss);
497
498 a0 = &alarm_base;
499 a0->function = UAL_NULL;
500 }
501 itmlst[0].bufaddr = &asten;
502
503 iss = sys$getjpiw(0,0,0,itmlst,0,0,0);
504 if (VMSERR(iss)) lib$signal(iss);
505 if (!(asten&0x08)) return -1;
506
507 a = &abase;
508 if (mseconds) {
509 a->function = UAL_SET;
510 } else {
511 a->function = UAL_CLEAR;
512 }
513
514 us_to_VMS(mseconds, a->delay);
515 if (interval) {
516 us_to_VMS(interval, a->interval);
517 a->repeat = 1;
518 } else
519 a->repeat = 0;
520
521 iss = sys$clref(alarm_ef);
522 if (VMSERR(iss)) lib$signal(iss);
523
524 iss = sys$dclast(ualarm_AST,a,0);
525 if (VMSERR(iss)) lib$signal(iss);
526
527 iss = sys$waitfr(alarm_ef);
528 if (VMSERR(iss)) lib$signal(iss);
529
530 if (a->function == UAL_ACTIVE)
531 return VMS_to_us(a->remain);
532 else
533 return 0;
534}
535
536
537
538static void
539ualarm_AST(Alarm *a)
540{
541 int iss;
542 unsigned long now[2];
543
544 iss = sys$gettim(now);
545 if (VMSERR(iss)) lib$signal(iss);
546
547 if (a->function == UAL_SET || a->function == UAL_CLEAR) {
548 if (a0->function == UAL_ACTIVE) {
549 iss = sys$cantim(a0,PSL$C_USER);
550 if (VMSERR(iss)) lib$signal(iss);
551
552 iss = lib$subx(a0->remain, now, a->remain);
553 if (VMSERR(iss)) lib$signal(iss);
554
555 if (a->remain[1] & 0x80000000)
556 a->remain[0] = a->remain[1] = 0;
557 }
558
559 if (a->function == UAL_SET) {
560 a->function = a0->function;
561 a0->function = UAL_ACTIVE;
562 a0->repeat = a->repeat;
563 if (a0->repeat) {
564 a0->interval[0] = a->interval[0];
565 a0->interval[1] = a->interval[1];
566 }
567 a0->delay[0] = a->delay[0];
568 a0->delay[1] = a->delay[1];
569
570 iss = lib$subx(now, a0->delay, a0->remain);
571 if (VMSERR(iss)) lib$signal(iss);
572
573 iss = sys$setimr(0,a0->delay,ualarm_AST,a0);
574 if (VMSERR(iss)) lib$signal(iss);
575 } else {
576 a->function = a0->function;
577 a0->function = UAL_NULL;
578 }
579 iss = sys$setef(alarm_ef);
580 if (VMSERR(iss)) lib$signal(iss);
581 } else if (a->function == UAL_ACTIVE) {
582 if (a->repeat) {
583 iss = lib$subx(now, a->interval, a->remain);
584 if (VMSERR(iss)) lib$signal(iss);
585
586 iss = sys$setimr(0,a->interval,ualarm_AST,a);
587 if (VMSERR(iss)) lib$signal(iss);
588 } else {
589 a->function = UAL_NULL;
590 }
591 iss = sys$wake(0,0);
592 if (VMSERR(iss)) lib$signal(iss);
593 lib$signal(SS$_ASTFLT);
594 } else {
595 lib$signal(SS$_BADPARAM);
596 }
597}
598
599#endif /* !HAS_UALARM && VMS */
600
dcf686c9 601#ifdef HAS_GETTIMEOFDAY
602
a2e20b18 603static int
dcf686c9 604myU2time(UV *ret)
605{
606 struct timeval Tp;
607 int status;
6e3b076d 608 status = gettimeofday (&Tp, NULL);
dcf686c9 609 ret[0] = Tp.tv_sec;
610 ret[1] = Tp.tv_usec;
a2e20b18 611 return status;
dcf686c9 612}
613
3c72ec00 614static NV
dcf686c9 615myNVtime()
616{
617 struct timeval Tp;
618 int status;
6e3b076d 619 status = gettimeofday (&Tp, NULL);
a2e20b18 620 return status == 0 ? Tp.tv_sec + (Tp.tv_usec / 1000000.) : -1.0;
dcf686c9 621}
622
623#endif
624
625MODULE = Time::HiRes PACKAGE = Time::HiRes
626
627PROTOTYPES: ENABLE
628
629BOOT:
3f2ee006 630#ifdef ATLEASTFIVEOHOHFIVE
dcf686c9 631#ifdef HAS_GETTIMEOFDAY
a2e20b18 632{
633 UV auv[2];
cfb1f18c 634 hv_store(PL_modglobal, "Time::NVtime", 12, newSViv(PTR2IV(myNVtime)), 0);
a2e20b18 635 if (myU2time(auv) == 0)
636 hv_store(PL_modglobal, "Time::U2time", 12, newSViv((IV) auv[0]), 0);
637}
dcf686c9 638#endif
3f2ee006 639#endif
dcf686c9 640
98b50af3 641INCLUDE: const-xs.inc
3c72ec00 642
52d72fba 643#if defined(HAS_USLEEP) && defined(HAS_GETTIMEOFDAY)
dcf686c9 644
92bc48ca 645NV
dcf686c9 646usleep(useconds)
92bc48ca 647 NV useconds
52d72fba 648 PREINIT:
649 struct timeval Ta, Tb;
650 CODE:
6e3b076d 651 gettimeofday(&Ta, NULL);
52d72fba 652 if (items > 0) {
92bc48ca 653 if (useconds > 1E6) {
654 IV seconds = (IV) (useconds / 1E6);
f7916ddb 655 /* If usleep() has been implemented using setitimer()
656 * then this contortion is unnecessary-- but usleep()
657 * may be implemented in some other way, so let's contort. */
658 if (seconds) {
659 sleep(seconds);
660 useconds -= 1E6 * seconds;
661 }
662 } else if (useconds < 0.0)
663 croak("Time::HiRes::usleep(%"NVgf"): negative time not invented yet", useconds);
9a2ac92c 664 usleep((U32)useconds);
52d72fba 665 } else
666 PerlProc_pause();
6e3b076d 667 gettimeofday(&Tb, NULL);
92bc48ca 668#if 0
669 printf("[%ld %ld] [%ld %ld]\n", Tb.tv_sec, Tb.tv_usec, Ta.tv_sec, Ta.tv_usec);
670#endif
671 RETVAL = 1E6*(Tb.tv_sec-Ta.tv_sec)+(NV)((IV)Tb.tv_usec-(IV)Ta.tv_usec);
dcf686c9 672
52d72fba 673 OUTPUT:
674 RETVAL
675
676NV
f9d00e57 677sleep(...)
52d72fba 678 PREINIT:
679 struct timeval Ta, Tb;
dcf686c9 680 CODE:
6e3b076d 681 gettimeofday(&Ta, NULL);
92bc48ca 682 if (items > 0) {
683 NV seconds = SvNV(ST(0));
f7916ddb 684 if (seconds >= 0.0) {
7c436af3 685 UV useconds = (UV)(1E6 * (seconds - (UV)seconds));
4880edd6 686 if (seconds >= 1.0)
9a2ac92c 687 sleep((U32)seconds);
db0b859f 688 if ((IV)useconds < 0) {
689#if defined(__sparc64__) && defined(__GNUC__)
690 /* Sparc64 gcc 2.95.3 (e.g. on NetBSD) has a bug
691 * where (0.5 - (UV)(0.5)) will under certain
692 * circumstances (if the double is cast to UV more
693 * than once?) evaluate to -0.5, instead of 0.5. */
694 useconds = -(IV)useconds;
695#endif
696 if ((IV)useconds < 0)
697 croak("Time::HiRes::sleep(%"NVgf"): internal error: useconds < 0 (unsigned %"UVuf" signed %"IVdf")", seconds, useconds, (IV)useconds);
698 }
f7916ddb 699 usleep(useconds);
700 } else
701 croak("Time::HiRes::sleep(%"NVgf"): negative time not invented yet", seconds);
92bc48ca 702 } else
f9d00e57 703 PerlProc_pause();
6e3b076d 704 gettimeofday(&Tb, NULL);
92bc48ca 705#if 0
706 printf("[%ld %ld] [%ld %ld]\n", Tb.tv_sec, Tb.tv_usec, Ta.tv_sec, Ta.tv_usec);
707#endif
52d72fba 708 RETVAL = (NV)(Tb.tv_sec-Ta.tv_sec)+0.000001*(NV)(Tb.tv_usec-Ta.tv_usec);
709
710 OUTPUT:
711 RETVAL
dcf686c9 712
713#endif
714
715#ifdef HAS_UALARM
716
3de7a4ec 717int
dcf686c9 718ualarm(useconds,interval=0)
719 int useconds
720 int interval
f7916ddb 721 CODE:
722 if (useconds < 0 || interval < 0)
3de7a4ec 723 croak("Time::HiRes::ualarm(%d, %d): negative time not invented yet", useconds, interval);
f7916ddb 724 RETVAL = ualarm(useconds, interval);
dcf686c9 725
f7916ddb 726 OUTPUT:
727 RETVAL
728
729NV
730alarm(seconds,interval=0)
731 NV seconds
732 NV interval
dcf686c9 733 CODE:
f7916ddb 734 if (seconds < 0.0 || interval < 0.0)
735 croak("Time::HiRes::alarm(%"NVgf", %"NVgf"): negative time not invented yet", seconds, interval);
736 RETVAL = (NV)ualarm(seconds * 1000000,
737 interval * 1000000) / 1E6;
dcf686c9 738
c6c619a9 739 OUTPUT:
740 RETVAL
741
dcf686c9 742#endif
743
744#ifdef HAS_GETTIMEOFDAY
db835671 745# ifdef MACOS_TRADITIONAL /* fix epoch TZ and use unsigned time_t */
746void
747gettimeofday()
748 PREINIT:
749 struct timeval Tp;
750 struct timezone Tz;
751 PPCODE:
752 int status;
6e3b076d 753 status = gettimeofday (&Tp, &Tz);
db835671 754 Tp.tv_sec += Tz.tz_minuteswest * 60; /* adjust for TZ */
755
756 if (GIMME == G_ARRAY) {
757 EXTEND(sp, 2);
758 /* Mac OS (Classic) has unsigned time_t */
759 PUSHs(sv_2mortal(newSVuv(Tp.tv_sec)));
760 PUSHs(sv_2mortal(newSViv(Tp.tv_usec)));
761 } else {
762 EXTEND(sp, 1);
763 PUSHs(sv_2mortal(newSVnv(Tp.tv_sec + (Tp.tv_usec / 1000000.0))));
764 }
765
766NV
767time()
768 PREINIT:
769 struct timeval Tp;
770 struct timezone Tz;
771 CODE:
772 int status;
6e3b076d 773 status = gettimeofday (&Tp, &Tz);
db835671 774 Tp.tv_sec += Tz.tz_minuteswest * 60; /* adjust for TZ */
775 RETVAL = Tp.tv_sec + (Tp.tv_usec / 1000000.0);
776 OUTPUT:
777 RETVAL
dcf686c9 778
db835671 779# else /* MACOS_TRADITIONAL */
dcf686c9 780void
781gettimeofday()
782 PREINIT:
783 struct timeval Tp;
784 PPCODE:
785 int status;
6e3b076d 786 status = gettimeofday (&Tp, NULL);
dcf686c9 787 if (GIMME == G_ARRAY) {
788 EXTEND(sp, 2);
789 PUSHs(sv_2mortal(newSViv(Tp.tv_sec)));
790 PUSHs(sv_2mortal(newSViv(Tp.tv_usec)));
791 } else {
792 EXTEND(sp, 1);
793 PUSHs(sv_2mortal(newSVnv(Tp.tv_sec + (Tp.tv_usec / 1000000.0))));
794 }
795
3c72ec00 796NV
dcf686c9 797time()
798 PREINIT:
799 struct timeval Tp;
800 CODE:
801 int status;
6e3b076d 802 status = gettimeofday (&Tp, NULL);
dcf686c9 803 RETVAL = Tp.tv_sec + (Tp.tv_usec / 1000000.);
804 OUTPUT:
805 RETVAL
806
db835671 807# endif /* MACOS_TRADITIONAL */
dcf686c9 808#endif
809
3c72ec00 810#if defined(HAS_GETITIMER) && defined(HAS_SETITIMER)
811
812#define TV2NV(tv) ((NV)((tv).tv_sec) + 0.000001 * (NV)((tv).tv_usec))
813
814void
815setitimer(which, seconds, interval = 0)
816 int which
817 NV seconds
818 NV interval
819 PREINIT:
820 struct itimerval newit;
821 struct itimerval oldit;
822 PPCODE:
f7916ddb 823 if (seconds < 0.0 || interval < 0.0)
436c6dd3 824 croak("Time::HiRes::setitimer(%"IVdf", %"NVgf", %"NVgf"): negative time not invented yet", (IV)which, seconds, interval);
3c72ec00 825 newit.it_value.tv_sec = seconds;
826 newit.it_value.tv_usec =
827 (seconds - (NV)newit.it_value.tv_sec) * 1000000.0;
828 newit.it_interval.tv_sec = interval;
829 newit.it_interval.tv_usec =
830 (interval - (NV)newit.it_interval.tv_sec) * 1000000.0;
831 if (setitimer(which, &newit, &oldit) == 0) {
832 EXTEND(sp, 1);
833 PUSHs(sv_2mortal(newSVnv(TV2NV(oldit.it_value))));
834 if (GIMME == G_ARRAY) {
835 EXTEND(sp, 1);
836 PUSHs(sv_2mortal(newSVnv(TV2NV(oldit.it_interval))));
837 }
838 }
839
840void
841getitimer(which)
842 int which
843 PREINIT:
844 struct itimerval nowit;
845 PPCODE:
846 if (getitimer(which, &nowit) == 0) {
847 EXTEND(sp, 1);
848 PUSHs(sv_2mortal(newSVnv(TV2NV(nowit.it_value))));
849 if (GIMME == G_ARRAY) {
850 EXTEND(sp, 1);
851 PUSHs(sv_2mortal(newSVnv(TV2NV(nowit.it_interval))));
852 }
853 }
854
855#endif
856
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