projects / p5sagit/p5-mst-13.2.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | history | HEAD
Upgrade to Time-HiRes-1.81
[p5sagit/p5-mst-13.2.git] / ext / Time / HiRes / HiRes.xs
CommitLineData
f8daf111 1/*
2 *
3 * Copyright (c) 1996-2002 Douglas E. Wegscheid. All rights reserved.
4 *
5 * Copyright (c) 2002,2003,2004,2005 Jarkko Hietaniemi. All rights reserved.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the same terms as Perl itself.
9 */
10
dcf686c9 11#ifdef __cplusplus
12extern "C" {
13#endif
0225372c 14#define PERL_NO_GET_CONTEXT
dcf686c9 15#include "EXTERN.h"
16#include "perl.h"
17#include "XSUB.h"
1fbb4de4 18#include "ppport.h"
4ed0e2d4 19#if defined(__CYGWIN__) && defined(HAS_W32API_WINDOWS_H)
20# include <w32api/windows.h>
21# define CYGWIN_WITH_W32API
22#endif
dcf686c9 23#ifdef WIN32
4ed0e2d4 24# include <time.h>
dcf686c9 25#else
4ed0e2d4 26# include <sys/time.h>
dcf686c9 27#endif
36df99d6 28#ifdef HAS_SELECT
29# ifdef I_SYS_SELECT
30# include <sys/select.h>
31# endif
32#endif
ced84e60 33#if defined(TIME_HIRES_CLOCK_GETTIME_SYSCALL) || defined(TIME_HIRES_CLOCK_GETRES_SYSCALL)
34#include <syscall.h>
35#endif
dcf686c9 36#ifdef __cplusplus
37}
38#endif
39
1fbb4de4 40#ifndef PerlProc_pause
41# define PerlProc_pause() Pause()
3f2ee006 42#endif
43
1fbb4de4 44#ifdef HAS_PAUSE
45# define Pause pause
3f2ee006 46#else
27da23d5 47# undef Pause /* In case perl.h did it already. */
64a7a97c 48# define Pause() sleep(~0) /* Zzz for a long time. */
3f2ee006 49#endif
50
51/* Though the cpp define ITIMER_VIRTUAL is available the functionality
4ed0e2d4 52 * is not supported in Cygwin as of August 2004, ditto for Win32.
3f2ee006 53 * Neither are ITIMER_PROF or ITIMER_REALPROF implemented. --jhi
54 */
55#if defined(__CYGWIN__) || defined(WIN32)
56# undef ITIMER_VIRTUAL
57# undef ITIMER_PROF
58# undef ITIMER_REALPROF
59#endif
60
98b50af3 61/* 5.004 doesn't define PL_sv_undef */
62#ifndef ATLEASTFIVEOHOHFIVE
4ed0e2d4 63# ifndef PL_sv_undef
64# define PL_sv_undef sv_undef
65# endif
3c72ec00 66#endif
3c72ec00 67
98b50af3 68#include "const-c.inc"
3c72ec00 69
4ed0e2d4 70#if defined(WIN32) || defined(CYGWIN_WITH_W32API)
0225372c 71
72#ifndef HAS_GETTIMEOFDAY
73# define HAS_GETTIMEOFDAY
74#endif
fd44fdfd 75
6e3b076d 76/* shows up in winsock.h?
77struct timeval {
78 long tv_sec;
79 long tv_usec;
80}
81*/
82
fd44fdfd 83typedef union {
84 unsigned __int64 ft_i64;
85 FILETIME ft_val;
86} FT_t;
87
0225372c 88#define MY_CXT_KEY "Time::HiRes_" XS_VERSION
89
90typedef struct {
91 unsigned long run_count;
92 unsigned __int64 base_ticks;
93 unsigned __int64 tick_frequency;
94 FT_t base_systime_as_filetime;
4ed0e2d4 95 unsigned __int64 reset_time;
0225372c 96} my_cxt_t;
97
98START_MY_CXT
99
6e3b076d 100/* Number of 100 nanosecond units from 1/1/1601 to 1/1/1970 */
fd44fdfd 101#ifdef __GNUC__
4ed0e2d4 102# define Const64(x) x##LL
fd44fdfd 103#else
4ed0e2d4 104# define Const64(x) x##i64
fd44fdfd 105#endif
fd44fdfd 106#define EPOCH_BIAS Const64(116444736000000000)
107
108/* NOTE: This does not compute the timezone info (doing so can be expensive,
109 * and appears to be unsupported even by glibc) */
0225372c 110
111/* dMY_CXT needs a Perl context and we don't want to call PERL_GET_CONTEXT
112 for performance reasons */
113
114#undef gettimeofday
115#define gettimeofday(tp, not_used) _gettimeofday(aTHX_ tp, not_used)
116
d8cb5b61 117/* If the performance counter delta drifts more than 0.5 seconds from the
118 * system time then we recalibrate to the system time. This means we may
c1dc6e7c 119 * move *backwards* in time! */
4ed0e2d4 120#define MAX_PERF_COUNTER_SKEW Const64(5000000) /* 0.5 seconds */
c1dc6e7c 121
4ed0e2d4 122/* Reset reading from the performance counter every five minutes.
123 * Many PC clocks just seem to be so bad. */
124#define MAX_PERF_COUNTER_TICKS Const64(300000000) /* 300 seconds */
c1dc6e7c 125
0225372c 126static int
127_gettimeofday(pTHX_ struct timeval *tp, void *not_used)
fd44fdfd 128{
0225372c 129 dMY_CXT;
130
131 unsigned __int64 ticks;
fd44fdfd 132 FT_t ft;
133
4ed0e2d4 134 if (MY_CXT.run_count++ == 0 ||
135 MY_CXT.base_systime_as_filetime.ft_i64 > MY_CXT.reset_time) {
136 QueryPerformanceFrequency((LARGE_INTEGER*)&MY_CXT.tick_frequency);
137 QueryPerformanceCounter((LARGE_INTEGER*)&MY_CXT.base_ticks);
138 GetSystemTimeAsFileTime(&MY_CXT.base_systime_as_filetime.ft_val);
139 ft.ft_i64 = MY_CXT.base_systime_as_filetime.ft_i64;
140 MY_CXT.reset_time = ft.ft_i64 + MAX_PERF_COUNTER_TICKS;
141 }
142 else {
c1dc6e7c 143 __int64 diff;
0225372c 144 QueryPerformanceCounter((LARGE_INTEGER*)&ticks);
145 ticks -= MY_CXT.base_ticks;
146 ft.ft_i64 = MY_CXT.base_systime_as_filetime.ft_i64
b6136f41 147 + Const64(10000000) * (ticks / MY_CXT.tick_frequency)
148 +(Const64(10000000) * (ticks % MY_CXT.tick_frequency)) / MY_CXT.tick_frequency;
c1dc6e7c 149 diff = ft.ft_i64 - MY_CXT.base_systime_as_filetime.ft_i64;
4ed0e2d4 150 if (diff < -MAX_PERF_COUNTER_SKEW || diff > MAX_PERF_COUNTER_SKEW) {
151 MY_CXT.base_ticks += ticks;
152 GetSystemTimeAsFileTime(&MY_CXT.base_systime_as_filetime.ft_val);
153 ft.ft_i64 = MY_CXT.base_systime_as_filetime.ft_i64;
c1dc6e7c 154 }
0225372c 155 }
fd44fdfd 156
157 /* seconds since epoch */
158 tp->tv_sec = (long)((ft.ft_i64 - EPOCH_BIAS) / Const64(10000000));
159
160 /* microseconds remaining */
161 tp->tv_usec = (long)((ft.ft_i64 / Const64(10)) % Const64(1000000));
162
163 return 0;
164}
6e3b076d 165#endif
fd44fdfd 166
0225372c 167#if defined(WIN32) && !defined(ATLEASTFIVEOHOHFIVE)
168static unsigned int
169sleep(unsigned int t)
170{
171 Sleep(t*1000);
172 return 0;
173}
174#endif
175
dcf686c9 176#if !defined(HAS_GETTIMEOFDAY) && defined(VMS)
177#define HAS_GETTIMEOFDAY
178
9b6f56ad 179#include <lnmdef.h>
dcf686c9 180#include <time.h> /* gettimeofday */
181#include <stdlib.h> /* qdiv */
182#include <starlet.h> /* sys$gettim */
183#include <descrip.h>
3785778e 184#ifdef __VAX
185#include <lib$routines.h> /* lib$ediv() */
186#endif
dcf686c9 187
188/*
189 VMS binary time is expressed in 100 nano-seconds since
190 system base time which is 17-NOV-1858 00:00:00.00
191*/
192
193#define DIV_100NS_TO_SECS 10000000L
194#define DIV_100NS_TO_USECS 10L
195
196/*
197 gettimeofday is supposed to return times since the epoch
198 so need to determine this in terms of VMS base time
199*/
200static $DESCRIPTOR(dscepoch,"01-JAN-1970 00:00:00.00");
201
5cdb7193 202#ifdef __VAX
3785778e 203static long base_adjust[2]={0L,0L};
5cdb7193 204#else
dcf686c9 205static __int64 base_adjust=0;
5cdb7193 206#endif
dcf686c9 207
9b6f56ad 208/*
209
210 If we don't have gettimeofday, then likely we are on a VMS machine that
211 operates on local time rather than UTC...so we have to zone-adjust.
212 This code gleefully swiped from VMS.C
213
214*/
215/* method used to handle UTC conversions:
216 * 1 == CRTL gmtime(); 2 == SYS$TIMEZONE_DIFFERENTIAL; 3 == no correction
217 */
218static int gmtime_emulation_type;
219/* number of secs to add to UTC POSIX-style time to get local time */
220static long int utc_offset_secs;
221static struct dsc$descriptor_s fildevdsc =
222 { 12, DSC$K_DTYPE_T, DSC$K_CLASS_S, "LNM$FILE_DEV" };
223static struct dsc$descriptor_s *fildev[] = { &fildevdsc, NULL };
224
225static time_t toutc_dst(time_t loc) {
226 struct tm *rsltmp;
227
228 if ((rsltmp = localtime(&loc)) == NULL) return -1;
229 loc -= utc_offset_secs;
230 if (rsltmp->tm_isdst) loc -= 3600;
231 return loc;
232}
233
234static time_t toloc_dst(time_t utc) {
235 struct tm *rsltmp;
236
237 utc += utc_offset_secs;
238 if ((rsltmp = localtime(&utc)) == NULL) return -1;
239 if (rsltmp->tm_isdst) utc += 3600;
240 return utc;
241}
242
243#define _toutc(secs) ((secs) == (time_t) -1 ? (time_t) -1 : \
244 ((gmtime_emulation_type || timezone_setup()), \
245 (gmtime_emulation_type == 1 ? toutc_dst(secs) : \
246 ((secs) - utc_offset_secs))))
247
248#define _toloc(secs) ((secs) == (time_t) -1 ? (time_t) -1 : \
249 ((gmtime_emulation_type || timezone_setup()), \
250 (gmtime_emulation_type == 1 ? toloc_dst(secs) : \
251 ((secs) + utc_offset_secs))))
252
253static int
254timezone_setup(void)
255{
256 struct tm *tm_p;
257
258 if (gmtime_emulation_type == 0) {
259 int dstnow;
260 time_t base = 15 * 86400; /* 15jan71; to avoid month/year ends between */
261 /* results of calls to gmtime() and localtime() */
262 /* for same &base */
263
264 gmtime_emulation_type++;
265 if ((tm_p = gmtime(&base)) == NULL) { /* CRTL gmtime() is a fake */
266 char off[LNM$C_NAMLENGTH+1];;
267
268 gmtime_emulation_type++;
269 if (!Perl_vmstrnenv("SYS$TIMEZONE_DIFFERENTIAL",off,0,fildev,0)) {
270 gmtime_emulation_type++;
271 utc_offset_secs = 0;
272 Perl_warn(aTHX_ "no UTC offset information; assuming local time is UTC");
273 }
274 else { utc_offset_secs = atol(off); }
275 }
276 else { /* We've got a working gmtime() */
277 struct tm gmt, local;
278
279 gmt = *tm_p;
280 tm_p = localtime(&base);
281 local = *tm_p;
282 utc_offset_secs = (local.tm_mday - gmt.tm_mday) * 86400;
283 utc_offset_secs += (local.tm_hour - gmt.tm_hour) * 3600;
284 utc_offset_secs += (local.tm_min - gmt.tm_min) * 60;
285 utc_offset_secs += (local.tm_sec - gmt.tm_sec);
286 }
287 }
288 return 1;
289}
290
291
dcf686c9 292int
293gettimeofday (struct timeval *tp, void *tpz)
294{
295 long ret;
5cdb7193 296#ifdef __VAX
3785778e 297 long quad[2];
298 long quad1[2];
299 long div_100ns_to_secs;
300 long div_100ns_to_usecs;
301 long quo,rem;
302 long quo1,rem1;
5cdb7193 303#else
dcf686c9 304 __int64 quad;
305 __qdiv_t ans1,ans2;
5cdb7193 306#endif
dcf686c9 307/*
308 In case of error, tv_usec = 0 and tv_sec = VMS condition code.
309 The return from function is also set to -1.
310 This is not exactly as per the manual page.
311*/
312
313 tp->tv_usec = 0;
314
3785778e 315#ifdef __VAX
316 if (base_adjust[0]==0 && base_adjust[1]==0) {
317#else
dcf686c9 318 if (base_adjust==0) { /* Need to determine epoch adjustment */
3785778e 319#endif
dcf686c9 320 ret=sys$bintim(&dscepoch,&base_adjust);
321 if (1 != (ret &&1)) {
322 tp->tv_sec = ret;
323 return -1;
324 }
325 }
326
327 ret=sys$gettim(&quad); /* Get VMS system time */
328 if ((1 && ret) == 1) {
5cdb7193 329#ifdef __VAX
3785778e 330 quad[0] -= base_adjust[0]; /* convert to epoch offset */
331 quad[1] -= base_adjust[1]; /* convert 2nd half of quadword */
332 div_100ns_to_secs = DIV_100NS_TO_SECS;
333 div_100ns_to_usecs = DIV_100NS_TO_USECS;
334 lib$ediv(&div_100ns_to_secs,&quad,&quo,&rem);
335 quad1[0] = rem;
336 quad1[1] = 0L;
337 lib$ediv(&div_100ns_to_usecs,&quad1,&quo1,&rem1);
338 tp->tv_sec = quo; /* Whole seconds */
339 tp->tv_usec = quo1; /* Micro-seconds */
5cdb7193 340#else
3785778e 341 quad -= base_adjust; /* convert to epoch offset */
dcf686c9 342 ans1=qdiv(quad,DIV_100NS_TO_SECS);
343 ans2=qdiv(ans1.rem,DIV_100NS_TO_USECS);
344 tp->tv_sec = ans1.quot; /* Whole seconds */
345 tp->tv_usec = ans2.quot; /* Micro-seconds */
3785778e 346#endif
dcf686c9 347 } else {
348 tp->tv_sec = ret;
349 return -1;
350 }
9b6f56ad 351# ifdef VMSISH_TIME
352# ifdef RTL_USES_UTC
353 if (VMSISH_TIME) tp->tv_sec = _toloc(tp->tv_sec);
354# else
355 if (!VMSISH_TIME) tp->tv_sec = _toutc(tp->tv_sec);
356# endif
357# endif
dcf686c9 358 return 0;
359}
360#endif
361
3f2ee006 362
046e3f33 363 /* Do not use H A S _ N A N O S L E E P
70cf0185 364 * so that Perl Configure doesn't scan for it (and pull in -lrt and
365 * the like which are not usually good ideas for the default Perl).
e5433ad8 366 * (We are part of the core perl now.)
046e3f33 367 * The TIME_HIRES_NANOSLEEP is set by Makefile.PL. */
368#if !defined(HAS_USLEEP) && defined(TIME_HIRES_NANOSLEEP)
3f2ee006 369#define HAS_USLEEP
3d0346a5 370#define usleep hrt_nanosleep /* could conflict with ncurses for static build */
3f2ee006 371
372void
3d0346a5 373hrt_nanosleep(unsigned long usec) /* This is used to emulate usleep. */
3f2ee006 374{
375 struct timespec res;
376 res.tv_sec = usec/1000/1000;
377 res.tv_nsec = ( usec - res.tv_sec*1000*1000 ) * 1000;
378 nanosleep(&res, NULL);
379}
3f2ee006 380
44d3ce20 381#endif /* #if !defined(HAS_USLEEP) && defined(TIME_HIRES_NANOSLEEP) */
3f2ee006 382
dcf686c9 383#if !defined(HAS_USLEEP) && defined(HAS_SELECT)
384#ifndef SELECT_IS_BROKEN
385#define HAS_USLEEP
386#define usleep hrt_usleep /* could conflict with ncurses for static build */
387
388void
389hrt_usleep(unsigned long usec)
390{
391 struct timeval tv;
392 tv.tv_sec = 0;
393 tv.tv_usec = usec;
394 select(0, (Select_fd_set_t)NULL, (Select_fd_set_t)NULL,
395 (Select_fd_set_t)NULL, &tv);
396}
397#endif
44d3ce20 398#endif /* #if !defined(HAS_USLEEP) && defined(HAS_SELECT) */
dcf686c9 399
400#if !defined(HAS_USLEEP) && defined(WIN32)
401#define HAS_USLEEP
402#define usleep hrt_usleep /* could conflict with ncurses for static build */
403
404void
405hrt_usleep(unsigned long usec)
406{
407 long msec;
408 msec = usec / 1000;
409 Sleep (msec);
410}
44d3ce20 411#endif /* #if !defined(HAS_USLEEP) && defined(WIN32) */
dcf686c9 412
70cf0185 413#if !defined(HAS_USLEEP) && defined(TIME_HIRES_NANOSLEEP)
e5433ad8 414#define HAS_USLEEP
415#define usleep hrt_usleep /* could conflict with ncurses for static build */
416
417void
418hrt_usleep(unsigned long usec)
419{
420 struct timespec tsa;
421 tsa.tv_sec = usec * 1000; /* Ignoring wraparound. */
422 tsa.tv_nsec = 0;
423 nanosleep(&tsa, NULL);
424}
425
b311af62 426#endif /* #if !defined(HAS_USLEEP) && defined(TIME_HIRES_NANOSLEEP) */
e5433ad8 427
428#if !defined(HAS_USLEEP) && defined(HAS_POLL)
429#define HAS_USLEEP
430#define usleep hrt_usleep /* could conflict with ncurses for static build */
431
432void
433hrt_usleep(unsigned long usec)
434{
435 int msec = usec / 1000;
436 poll(0, 0, msec);
437}
438
439#endif /* #if !defined(HAS_USLEEP) && defined(HAS_POLL) */
dcf686c9 440
441#if !defined(HAS_UALARM) && defined(HAS_SETITIMER)
442#define HAS_UALARM
443#define ualarm hrt_ualarm /* could conflict with ncurses for static build */
444
445int
446hrt_ualarm(int usec, int interval)
447{
448 struct itimerval itv;
449 itv.it_value.tv_sec = usec / 1000000;
450 itv.it_value.tv_usec = usec % 1000000;
451 itv.it_interval.tv_sec = interval / 1000000;
452 itv.it_interval.tv_usec = interval % 1000000;
453 return setitimer(ITIMER_REAL, &itv, 0);
454}
44d3ce20 455#endif /* #if !defined(HAS_UALARM) && defined(HAS_SETITIMER) */
dcf686c9 456
ca40fe49 457#if !defined(HAS_UALARM) && defined(VMS)
458#define HAS_UALARM
459#define ualarm vms_ualarm
460
461#include <lib$routines.h>
462#include <ssdef.h>
463#include <starlet.h>
464#include <descrip.h>
465#include <signal.h>
466#include <jpidef.h>
467#include <psldef.h>
468
469#define VMSERR(s) (!((s)&1))
470
471static void
472us_to_VMS(useconds_t mseconds, unsigned long v[])
473{
474 int iss;
475 unsigned long qq[2];
476
477 qq[0] = mseconds;
478 qq[1] = 0;
479 v[0] = v[1] = 0;
480
481 iss = lib$addx(qq,qq,qq);
482 if (VMSERR(iss)) lib$signal(iss);
483 iss = lib$subx(v,qq,v);
484 if (VMSERR(iss)) lib$signal(iss);
485 iss = lib$addx(qq,qq,qq);
486 if (VMSERR(iss)) lib$signal(iss);
487 iss = lib$subx(v,qq,v);
488 if (VMSERR(iss)) lib$signal(iss);
489 iss = lib$subx(v,qq,v);
490 if (VMSERR(iss)) lib$signal(iss);
491}
492
493static int
494VMS_to_us(unsigned long v[])
495{
496 int iss;
497 unsigned long div=10,quot, rem;
498
499 iss = lib$ediv(&div,v,&quot,&rem);
500 if (VMSERR(iss)) lib$signal(iss);
501
502 return quot;
503}
504
505typedef unsigned short word;
506typedef struct _ualarm {
507 int function;
508 int repeat;
509 unsigned long delay[2];
510 unsigned long interval[2];
511 unsigned long remain[2];
512} Alarm;
513
514
515static int alarm_ef;
516static Alarm *a0, alarm_base;
517#define UAL_NULL 0
518#define UAL_SET 1
519#define UAL_CLEAR 2
520#define UAL_ACTIVE 4
521static void ualarm_AST(Alarm *a);
522
523static int
524vms_ualarm(int mseconds, int interval)
525{
526 Alarm *a, abase;
527 struct item_list3 {
528 word length;
529 word code;
530 void *bufaddr;
531 void *retlenaddr;
532 } ;
533 static struct item_list3 itmlst[2];
534 static int first = 1;
535 unsigned long asten;
536 int iss, enabled;
537
538 if (first) {
539 first = 0;
540 itmlst[0].code = JPI$_ASTEN;
541 itmlst[0].length = sizeof(asten);
542 itmlst[0].retlenaddr = NULL;
543 itmlst[1].code = 0;
544 itmlst[1].length = 0;
545 itmlst[1].bufaddr = NULL;
546 itmlst[1].retlenaddr = NULL;
547
548 iss = lib$get_ef(&alarm_ef);
549 if (VMSERR(iss)) lib$signal(iss);
550
551 a0 = &alarm_base;
552 a0->function = UAL_NULL;
553 }
554 itmlst[0].bufaddr = &asten;
555
556 iss = sys$getjpiw(0,0,0,itmlst,0,0,0);
557 if (VMSERR(iss)) lib$signal(iss);
558 if (!(asten&0x08)) return -1;
559
560 a = &abase;
561 if (mseconds) {
562 a->function = UAL_SET;
563 } else {
564 a->function = UAL_CLEAR;
565 }
566
567 us_to_VMS(mseconds, a->delay);
568 if (interval) {
569 us_to_VMS(interval, a->interval);
570 a->repeat = 1;
571 } else
572 a->repeat = 0;
573
574 iss = sys$clref(alarm_ef);
575 if (VMSERR(iss)) lib$signal(iss);
576
577 iss = sys$dclast(ualarm_AST,a,0);
578 if (VMSERR(iss)) lib$signal(iss);
579
580 iss = sys$waitfr(alarm_ef);
581 if (VMSERR(iss)) lib$signal(iss);
582
583 if (a->function == UAL_ACTIVE)
584 return VMS_to_us(a->remain);
585 else
586 return 0;
587}
588
589
590
591static void
592ualarm_AST(Alarm *a)
593{
594 int iss;
595 unsigned long now[2];
596
597 iss = sys$gettim(now);
598 if (VMSERR(iss)) lib$signal(iss);
599
600 if (a->function == UAL_SET || a->function == UAL_CLEAR) {
601 if (a0->function == UAL_ACTIVE) {
602 iss = sys$cantim(a0,PSL$C_USER);
603 if (VMSERR(iss)) lib$signal(iss);
604
605 iss = lib$subx(a0->remain, now, a->remain);
606 if (VMSERR(iss)) lib$signal(iss);
607
608 if (a->remain[1] & 0x80000000)
609 a->remain[0] = a->remain[1] = 0;
610 }
611
612 if (a->function == UAL_SET) {
613 a->function = a0->function;
614 a0->function = UAL_ACTIVE;
615 a0->repeat = a->repeat;
616 if (a0->repeat) {
617 a0->interval[0] = a->interval[0];
618 a0->interval[1] = a->interval[1];
619 }
620 a0->delay[0] = a->delay[0];
621 a0->delay[1] = a->delay[1];
622
623 iss = lib$subx(now, a0->delay, a0->remain);
624 if (VMSERR(iss)) lib$signal(iss);
625
626 iss = sys$setimr(0,a0->delay,ualarm_AST,a0);
627 if (VMSERR(iss)) lib$signal(iss);
628 } else {
629 a->function = a0->function;
630 a0->function = UAL_NULL;
631 }
632 iss = sys$setef(alarm_ef);
633 if (VMSERR(iss)) lib$signal(iss);
634 } else if (a->function == UAL_ACTIVE) {
635 if (a->repeat) {
636 iss = lib$subx(now, a->interval, a->remain);
637 if (VMSERR(iss)) lib$signal(iss);
638
639 iss = sys$setimr(0,a->interval,ualarm_AST,a);
640 if (VMSERR(iss)) lib$signal(iss);
641 } else {
642 a->function = UAL_NULL;
643 }
644 iss = sys$wake(0,0);
645 if (VMSERR(iss)) lib$signal(iss);
646 lib$signal(SS$_ASTFLT);
647 } else {
648 lib$signal(SS$_BADPARAM);
649 }
650}
651
44d3ce20 652#endif /* #if !defined(HAS_UALARM) && defined(VMS) */
ca40fe49 653
dcf686c9 654#ifdef HAS_GETTIMEOFDAY
655
a2e20b18 656static int
0225372c 657myU2time(pTHX_ UV *ret)
dcf686c9 658{
659 struct timeval Tp;
660 int status;
6e3b076d 661 status = gettimeofday (&Tp, NULL);
dcf686c9 662 ret[0] = Tp.tv_sec;
663 ret[1] = Tp.tv_usec;
a2e20b18 664 return status;
dcf686c9 665}
666
3c72ec00 667static NV
dcf686c9 668myNVtime()
669{
0225372c 670#ifdef WIN32
4ed0e2d4 671 dTHX;
0225372c 672#endif
dcf686c9 673 struct timeval Tp;
674 int status;
6e3b076d 675 status = gettimeofday (&Tp, NULL);
a2e20b18 676 return status == 0 ? Tp.tv_sec + (Tp.tv_usec / 1000000.) : -1.0;
dcf686c9 677}
678
44d3ce20 679#endif /* #ifdef HAS_GETTIMEOFDAY */
dcf686c9 680
681MODULE = Time::HiRes PACKAGE = Time::HiRes
682
683PROTOTYPES: ENABLE
684
685BOOT:
0225372c 686{
687#ifdef MY_CXT_KEY
688 MY_CXT_INIT;
689#endif
3f2ee006 690#ifdef ATLEASTFIVEOHOHFIVE
dcf686c9 691#ifdef HAS_GETTIMEOFDAY
0225372c 692 {
0225372c 693 hv_store(PL_modglobal, "Time::NVtime", 12, newSViv(PTR2IV(myNVtime)), 0);
06252d99 694 hv_store(PL_modglobal, "Time::U2time", 12, newSViv(PTR2IV(myU2time)), 0);
0225372c 695 }
696#endif
dcf686c9 697#endif
0225372c 698}
699
700#if defined(USE_ITHREADS) && defined(MY_CXT_KEY)
701
702void
703CLONE(...)
704 CODE:
705 MY_CXT_CLONE;
706
3f2ee006 707#endif
dcf686c9 708
98b50af3 709INCLUDE: const-xs.inc
3c72ec00 710
52d72fba 711#if defined(HAS_USLEEP) && defined(HAS_GETTIMEOFDAY)
dcf686c9 712
92bc48ca 713NV
dcf686c9 714usleep(useconds)
92bc48ca 715 NV useconds
52d72fba 716 PREINIT:
717 struct timeval Ta, Tb;
718 CODE:
6e3b076d 719 gettimeofday(&Ta, NULL);
52d72fba 720 if (items > 0) {
92bc48ca 721 if (useconds > 1E6) {
722 IV seconds = (IV) (useconds / 1E6);
f7916ddb 723 /* If usleep() has been implemented using setitimer()
724 * then this contortion is unnecessary-- but usleep()
725 * may be implemented in some other way, so let's contort. */
726 if (seconds) {
727 sleep(seconds);
728 useconds -= 1E6 * seconds;
729 }
730 } else if (useconds < 0.0)
731 croak("Time::HiRes::usleep(%"NVgf"): negative time not invented yet", useconds);
9a2ac92c 732 usleep((U32)useconds);
52d72fba 733 } else
734 PerlProc_pause();
6e3b076d 735 gettimeofday(&Tb, NULL);
92bc48ca 736#if 0
737 printf("[%ld %ld] [%ld %ld]\n", Tb.tv_sec, Tb.tv_usec, Ta.tv_sec, Ta.tv_usec);
738#endif
739 RETVAL = 1E6*(Tb.tv_sec-Ta.tv_sec)+(NV)((IV)Tb.tv_usec-(IV)Ta.tv_usec);
dcf686c9 740
52d72fba 741 OUTPUT:
742 RETVAL
743
44d3ce20 744#if defined(TIME_HIRES_NANOSLEEP)
745
746NV
747nanosleep(nseconds)
748 NV nseconds
749 PREINIT:
750 struct timeval Ta, Tb;
751 CODE:
752 gettimeofday(&Ta, NULL);
753 if (items > 0) {
754 struct timespec tsa;
755 if (nseconds > 1E9) {
756 IV seconds = (IV) (nseconds / 1E9);
757 if (seconds) {
758 sleep(seconds);
759 nseconds -= 1E9 * seconds;
760 }
761 } else if (nseconds < 0.0)
762 croak("Time::HiRes::nanosleep(%"NVgf"): negative time not invented yet", nseconds);
763 tsa.tv_sec = (IV) (nseconds / 1E9);
764 tsa.tv_nsec = (IV) nseconds - tsa.tv_sec * 1E9;
765 nanosleep(&tsa, NULL);
766 } else
767 PerlProc_pause();
768 gettimeofday(&Tb, NULL);
769 RETVAL = 1E3*(1E6*(Tb.tv_sec-Ta.tv_sec)+(NV)((IV)Tb.tv_usec-(IV)Ta.tv_usec));
770
771 OUTPUT:
772 RETVAL
773
ced84e60 774#else /* #if defined(TIME_HIRES_NANOSLEEP) */
775
776NV
777nanosleep(nseconds)
778 NV nseconds
779 CODE:
780 croak("Time::HiRes::nanosleep(): unimplemented in this platform");
781 RETVAL = 0.0;
782
44d3ce20 783#endif /* #if defined(TIME_HIRES_NANOSLEEP) */
784
52d72fba 785NV
f9d00e57 786sleep(...)
52d72fba 787 PREINIT:
788 struct timeval Ta, Tb;
dcf686c9 789 CODE:
6e3b076d 790 gettimeofday(&Ta, NULL);
92bc48ca 791 if (items > 0) {
792 NV seconds = SvNV(ST(0));
f7916ddb 793 if (seconds >= 0.0) {
7c436af3 794 UV useconds = (UV)(1E6 * (seconds - (UV)seconds));
4880edd6 795 if (seconds >= 1.0)
9a2ac92c 796 sleep((U32)seconds);
db0b859f 797 if ((IV)useconds < 0) {
798#if defined(__sparc64__) && defined(__GNUC__)
799 /* Sparc64 gcc 2.95.3 (e.g. on NetBSD) has a bug
800 * where (0.5 - (UV)(0.5)) will under certain
801 * circumstances (if the double is cast to UV more
802 * than once?) evaluate to -0.5, instead of 0.5. */
803 useconds = -(IV)useconds;
44d3ce20 804#endif /* #if defined(__sparc64__) && defined(__GNUC__) */
db0b859f 805 if ((IV)useconds < 0)
806 croak("Time::HiRes::sleep(%"NVgf"): internal error: useconds < 0 (unsigned %"UVuf" signed %"IVdf")", seconds, useconds, (IV)useconds);
807 }
f7916ddb 808 usleep(useconds);
809 } else
810 croak("Time::HiRes::sleep(%"NVgf"): negative time not invented yet", seconds);
92bc48ca 811 } else
f9d00e57 812 PerlProc_pause();
6e3b076d 813 gettimeofday(&Tb, NULL);
92bc48ca 814#if 0
815 printf("[%ld %ld] [%ld %ld]\n", Tb.tv_sec, Tb.tv_usec, Ta.tv_sec, Ta.tv_usec);
816#endif
52d72fba 817 RETVAL = (NV)(Tb.tv_sec-Ta.tv_sec)+0.000001*(NV)(Tb.tv_usec-Ta.tv_usec);
818
819 OUTPUT:
820 RETVAL
dcf686c9 821
ced84e60 822#else /* #if defined(HAS_USLEEP) && defined(HAS_GETTIMEOFDAY) */
823
824NV
825usleep(useconds)
826 NV useconds
827 CODE:
828 croak("Time::HiRes::usleep(): unimplemented in this platform");
829 RETVAL = 0.0;
830
44d3ce20 831#endif /* #if defined(HAS_USLEEP) && defined(HAS_GETTIMEOFDAY) */
dcf686c9 832
833#ifdef HAS_UALARM
834
3de7a4ec 835int
dcf686c9 836ualarm(useconds,interval=0)
837 int useconds
838 int interval
f7916ddb 839 CODE:
840 if (useconds < 0 || interval < 0)
3de7a4ec 841 croak("Time::HiRes::ualarm(%d, %d): negative time not invented yet", useconds, interval);
f7916ddb 842 RETVAL = ualarm(useconds, interval);
dcf686c9 843
f7916ddb 844 OUTPUT:
845 RETVAL
846
847NV
848alarm(seconds,interval=0)
849 NV seconds
850 NV interval
dcf686c9 851 CODE:
f7916ddb 852 if (seconds < 0.0 || interval < 0.0)
853 croak("Time::HiRes::alarm(%"NVgf", %"NVgf"): negative time not invented yet", seconds, interval);
854 RETVAL = (NV)ualarm(seconds * 1000000,
855 interval * 1000000) / 1E6;
dcf686c9 856
c6c619a9 857 OUTPUT:
858 RETVAL
859
ced84e60 860#else
861
862int
863ualarm(useconds,interval=0)
864 int useconds
865 int interval
866 CODE:
867 croak("Time::HiRes::ualarm(): unimplemented in this platform");
868 RETVAL = -1;
869
870NV
871alarm(seconds,interval=0)
872 NV seconds
873 NV interval
874 CODE:
875 croak("Time::HiRes::alarm(): unimplemented in this platform");
876 RETVAL = 0.0;
877
44d3ce20 878#endif /* #ifdef HAS_UALARM */
dcf686c9 879
880#ifdef HAS_GETTIMEOFDAY
db835671 881# ifdef MACOS_TRADITIONAL /* fix epoch TZ and use unsigned time_t */
882void
883gettimeofday()
884 PREINIT:
885 struct timeval Tp;
886 struct timezone Tz;
887 PPCODE:
888 int status;
6e3b076d 889 status = gettimeofday (&Tp, &Tz);
db835671 890
993164ab 891 if (status == 0) {
892 Tp.tv_sec += Tz.tz_minuteswest * 60; /* adjust for TZ */
893 if (GIMME == G_ARRAY) {
894 EXTEND(sp, 2);
895 /* Mac OS (Classic) has unsigned time_t */
896 PUSHs(sv_2mortal(newSVuv(Tp.tv_sec)));
897 PUSHs(sv_2mortal(newSViv(Tp.tv_usec)));
898 } else {
899 EXTEND(sp, 1);
900 PUSHs(sv_2mortal(newSVnv(Tp.tv_sec + (Tp.tv_usec / 1000000.0))));
901 }
db835671 902 }
903
904NV
905time()
906 PREINIT:
907 struct timeval Tp;
908 struct timezone Tz;
909 CODE:
910 int status;
6e3b076d 911 status = gettimeofday (&Tp, &Tz);
993164ab 912 if (status == 0) {
913 Tp.tv_sec += Tz.tz_minuteswest * 60; /* adjust for TZ */
914 RETVAL = Tp.tv_sec + (Tp.tv_usec / 1000000.0);
915 } else {
916 RETVAL = -1.0;
917 }
db835671 918 OUTPUT:
919 RETVAL
dcf686c9 920
db835671 921# else /* MACOS_TRADITIONAL */
dcf686c9 922void
923gettimeofday()
924 PREINIT:
925 struct timeval Tp;
926 PPCODE:
927 int status;
6e3b076d 928 status = gettimeofday (&Tp, NULL);
993164ab 929 if (status == 0) {
930 if (GIMME == G_ARRAY) {
931 EXTEND(sp, 2);
932 PUSHs(sv_2mortal(newSViv(Tp.tv_sec)));
933 PUSHs(sv_2mortal(newSViv(Tp.tv_usec)));
934 } else {
935 EXTEND(sp, 1);
936 PUSHs(sv_2mortal(newSVnv(Tp.tv_sec + (Tp.tv_usec / 1000000.0))));
937 }
dcf686c9 938 }
939
3c72ec00 940NV
dcf686c9 941time()
942 PREINIT:
943 struct timeval Tp;
944 CODE:
945 int status;
6e3b076d 946 status = gettimeofday (&Tp, NULL);
993164ab 947 if (status == 0) {
948 RETVAL = Tp.tv_sec + (Tp.tv_usec / 1000000.);
949 } else {
950 RETVAL = -1.0;
951 }
dcf686c9 952 OUTPUT:
953 RETVAL
954
db835671 955# endif /* MACOS_TRADITIONAL */
44d3ce20 956#endif /* #ifdef HAS_GETTIMEOFDAY */
dcf686c9 957
3c72ec00 958#if defined(HAS_GETITIMER) && defined(HAS_SETITIMER)
959
960#define TV2NV(tv) ((NV)((tv).tv_sec) + 0.000001 * (NV)((tv).tv_usec))
961
962void
963setitimer(which, seconds, interval = 0)
964 int which
965 NV seconds
966 NV interval
967 PREINIT:
968 struct itimerval newit;
969 struct itimerval oldit;
970 PPCODE:
f7916ddb 971 if (seconds < 0.0 || interval < 0.0)
436c6dd3 972 croak("Time::HiRes::setitimer(%"IVdf", %"NVgf", %"NVgf"): negative time not invented yet", (IV)which, seconds, interval);
3c72ec00 973 newit.it_value.tv_sec = seconds;
974 newit.it_value.tv_usec =
975 (seconds - (NV)newit.it_value.tv_sec) * 1000000.0;
976 newit.it_interval.tv_sec = interval;
977 newit.it_interval.tv_usec =
978 (interval - (NV)newit.it_interval.tv_sec) * 1000000.0;
979 if (setitimer(which, &newit, &oldit) == 0) {
980 EXTEND(sp, 1);
981 PUSHs(sv_2mortal(newSVnv(TV2NV(oldit.it_value))));
982 if (GIMME == G_ARRAY) {
983 EXTEND(sp, 1);
984 PUSHs(sv_2mortal(newSVnv(TV2NV(oldit.it_interval))));
985 }
986 }
987
988void
989getitimer(which)
990 int which
991 PREINIT:
992 struct itimerval nowit;
993 PPCODE:
994 if (getitimer(which, &nowit) == 0) {
995 EXTEND(sp, 1);
996 PUSHs(sv_2mortal(newSVnv(TV2NV(nowit.it_value))));
997 if (GIMME == G_ARRAY) {
998 EXTEND(sp, 1);
999 PUSHs(sv_2mortal(newSVnv(TV2NV(nowit.it_interval))));
1000 }
1001 }
1002
44d3ce20 1003#endif /* #if defined(HAS_GETITIMER) && defined(HAS_SETITIMER) */
1004
ced84e60 1005#if defined(TIME_HIRES_CLOCK_GETTIME)
1006
1007NV
1008clock_gettime(clock_id = CLOCK_REALTIME)
1009 int clock_id
1010 PREINIT:
1011 struct timespec ts;
1012 int status = -1;
1013 CODE:
1014#ifdef TIME_HIRES_CLOCK_GETTIME_SYSCALL
1015 status = syscall(SYS_clock_gettime, clock_id, &ts);
1016#else
1017 status = clock_gettime(clock_id, &ts);
1018#endif
1019 RETVAL = status == 0 ? ts.tv_sec + (NV) ts.tv_nsec / (NV) 1e9 : -1;
1020
1021 OUTPUT:
1022 RETVAL
1023
1024#else /* if defined(TIME_HIRES_CLOCK_GETTIME) */
1025
1026NV
1027clock_gettime(clock_id = 0)
1028 int clock_id
1029 CODE:
1030 croak("Time::HiRes::clock_gettime(): unimplemented in this platform");
1031 RETVAL = 0.0;
1032
1033#endif /* #if defined(TIME_HIRES_CLOCK_GETTIME) */
1034
1035#if defined(TIME_HIRES_CLOCK_GETRES)
1036
1037NV
1038clock_getres(clock_id = CLOCK_REALTIME)
1039 int clock_id
1040 PREINIT:
1041 int status = -1;
1042 struct timespec ts;
1043 CODE:
1044#ifdef TIME_HIRES_CLOCK_GETRES_SYSCALL
1045 status = syscall(SYS_clock_getres, clock_id, &ts);
1046#else
1047 status = clock_getres(clock_id, &ts);
1048#endif
1049 RETVAL = status == 0 ? ts.tv_sec + (NV) ts.tv_nsec / (NV) 1e9 : -1;
1050
1051 OUTPUT:
1052 RETVAL
1053
1054#else /* if defined(TIME_HIRES_CLOCK_GETRES) */
1055
1056NV
1057clock_getres(clock_id = 0)
1058 int clock_id
1059 CODE:
1060 croak("Time::HiRes::clock_getres(): unimplemented in this platform");
1061 RETVAL = 0.0;
1062
1063#endif /* #if defined(TIME_HIRES_CLOCK_GETRES) */
1064
Unnamed repository; edit this file to name it for gitweb.