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