3 * Copyright (c) 1996-2002 Douglas E. Wegscheid. All rights reserved.
5 * Copyright (c) 2002,2003,2004,2005 Jarkko Hietaniemi. All rights reserved.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the same terms as Perl itself.
14 #define PERL_NO_GET_CONTEXT
19 #if defined(__CYGWIN__) && defined(HAS_W32API_WINDOWS_H)
20 # include <w32api/windows.h>
21 # define CYGWIN_WITH_W32API
26 # include <sys/time.h>
30 # include <sys/select.h>
33 #if defined(TIME_HIRES_CLOCK_GETTIME_SYSCALL) || defined(TIME_HIRES_CLOCK_GETRES_SYSCALL)
40 #ifndef PerlProc_pause
41 # define PerlProc_pause() Pause()
47 # undef Pause /* In case perl.h did it already. */
48 # define Pause() sleep(~0) /* Zzz for a long time. */
51 /* Though the cpp define ITIMER_VIRTUAL is available the functionality
52 * is not supported in Cygwin as of August 2004, ditto for Win32.
53 * Neither are ITIMER_PROF or ITIMER_REALPROF implemented. --jhi
55 #if defined(__CYGWIN__) || defined(WIN32)
56 # undef ITIMER_VIRTUAL
58 # undef ITIMER_REALPROF
61 /* 5.004 doesn't define PL_sv_undef */
62 #ifndef ATLEASTFIVEOHOHFIVE
64 # define PL_sv_undef sv_undef
68 #include "const-c.inc"
70 #if defined(WIN32) || defined(CYGWIN_WITH_W32API)
72 #ifndef HAS_GETTIMEOFDAY
73 # define HAS_GETTIMEOFDAY
76 /* shows up in winsock.h?
84 unsigned __int64 ft_i64;
88 #define MY_CXT_KEY "Time::HiRes_" XS_VERSION
91 unsigned long run_count;
92 unsigned __int64 base_ticks;
93 unsigned __int64 tick_frequency;
94 FT_t base_systime_as_filetime;
95 unsigned __int64 reset_time;
100 /* Number of 100 nanosecond units from 1/1/1601 to 1/1/1970 */
102 # define Const64(x) x##LL
104 # define Const64(x) x##i64
106 #define EPOCH_BIAS Const64(116444736000000000)
108 /* NOTE: This does not compute the timezone info (doing so can be expensive,
109 * and appears to be unsupported even by glibc) */
111 /* dMY_CXT needs a Perl context and we don't want to call PERL_GET_CONTEXT
112 for performance reasons */
115 #define gettimeofday(tp, not_used) _gettimeofday(aTHX_ tp, not_used)
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
119 * move *backwards* in time! */
120 #define MAX_PERF_COUNTER_SKEW Const64(5000000) /* 0.5 seconds */
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 */
127 _gettimeofday(pTHX_ struct timeval *tp, void *not_used)
131 unsigned __int64 ticks;
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;
144 QueryPerformanceCounter((LARGE_INTEGER*)&ticks);
145 ticks -= MY_CXT.base_ticks;
146 ft.ft_i64 = MY_CXT.base_systime_as_filetime.ft_i64
147 + Const64(10000000) * (ticks / MY_CXT.tick_frequency)
148 +(Const64(10000000) * (ticks % MY_CXT.tick_frequency)) / MY_CXT.tick_frequency;
149 diff = ft.ft_i64 - MY_CXT.base_systime_as_filetime.ft_i64;
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;
157 /* seconds since epoch */
158 tp->tv_sec = (long)((ft.ft_i64 - EPOCH_BIAS) / Const64(10000000));
160 /* microseconds remaining */
161 tp->tv_usec = (long)((ft.ft_i64 / Const64(10)) % Const64(1000000));
167 #if defined(WIN32) && !defined(ATLEASTFIVEOHOHFIVE)
169 sleep(unsigned int t)
176 #if !defined(HAS_GETTIMEOFDAY) && defined(VMS)
177 #define HAS_GETTIMEOFDAY
180 #include <time.h> /* gettimeofday */
181 #include <stdlib.h> /* qdiv */
182 #include <starlet.h> /* sys$gettim */
185 #include <lib$routines.h> /* lib$ediv() */
189 VMS binary time is expressed in 100 nano-seconds since
190 system base time which is 17-NOV-1858 00:00:00.00
193 #define DIV_100NS_TO_SECS 10000000L
194 #define DIV_100NS_TO_USECS 10L
197 gettimeofday is supposed to return times since the epoch
198 so need to determine this in terms of VMS base time
200 static $DESCRIPTOR(dscepoch,"01-JAN-1970 00:00:00.00");
203 static long base_adjust[2]={0L,0L};
205 static __int64 base_adjust=0;
210 If we don't have gettimeofday, then likely we are on a VMS machine that
211 operates on local time rather than UTC...so we have to zone-adjust.
212 This code gleefully swiped from VMS.C
215 /* method used to handle UTC conversions:
216 * 1 == CRTL gmtime(); 2 == SYS$TIMEZONE_DIFFERENTIAL; 3 == no correction
218 static int gmtime_emulation_type;
219 /* number of secs to add to UTC POSIX-style time to get local time */
220 static long int utc_offset_secs;
221 static struct dsc$descriptor_s fildevdsc =
222 { 12, DSC$K_DTYPE_T, DSC$K_CLASS_S, "LNM$FILE_DEV" };
223 static struct dsc$descriptor_s *fildev[] = { &fildevdsc, NULL };
225 static time_t toutc_dst(time_t loc) {
228 if ((rsltmp = localtime(&loc)) == NULL) return -1;
229 loc -= utc_offset_secs;
230 if (rsltmp->tm_isdst) loc -= 3600;
234 static time_t toloc_dst(time_t utc) {
237 utc += utc_offset_secs;
238 if ((rsltmp = localtime(&utc)) == NULL) return -1;
239 if (rsltmp->tm_isdst) utc += 3600;
243 #define _toutc(secs) ((secs) == (time_t) -1 ? (time_t) -1 : \
244 ((gmtime_emulation_type || timezone_setup()), \
245 (gmtime_emulation_type == 1 ? toutc_dst(secs) : \
246 ((secs) - utc_offset_secs))))
248 #define _toloc(secs) ((secs) == (time_t) -1 ? (time_t) -1 : \
249 ((gmtime_emulation_type || timezone_setup()), \
250 (gmtime_emulation_type == 1 ? toloc_dst(secs) : \
251 ((secs) + utc_offset_secs))))
258 if (gmtime_emulation_type == 0) {
260 time_t base = 15 * 86400; /* 15jan71; to avoid month/year ends between */
261 /* results of calls to gmtime() and localtime() */
264 gmtime_emulation_type++;
265 if ((tm_p = gmtime(&base)) == NULL) { /* CRTL gmtime() is a fake */
266 char off[LNM$C_NAMLENGTH+1];;
268 gmtime_emulation_type++;
269 if (!Perl_vmstrnenv("SYS$TIMEZONE_DIFFERENTIAL",off,0,fildev,0)) {
270 gmtime_emulation_type++;
272 Perl_warn(aTHX_ "no UTC offset information; assuming local time is UTC");
274 else { utc_offset_secs = atol(off); }
276 else { /* We've got a working gmtime() */
277 struct tm gmt, local;
280 tm_p = localtime(&base);
282 utc_offset_secs = (local.tm_mday - gmt.tm_mday) * 86400;
283 utc_offset_secs += (local.tm_hour - gmt.tm_hour) * 3600;
284 utc_offset_secs += (local.tm_min - gmt.tm_min) * 60;
285 utc_offset_secs += (local.tm_sec - gmt.tm_sec);
293 gettimeofday (struct timeval *tp, void *tpz)
299 long div_100ns_to_secs;
300 long div_100ns_to_usecs;
308 In case of error, tv_usec = 0 and tv_sec = VMS condition code.
309 The return from function is also set to -1.
310 This is not exactly as per the manual page.
316 if (base_adjust[0]==0 && base_adjust[1]==0) {
318 if (base_adjust==0) { /* Need to determine epoch adjustment */
320 ret=sys$bintim(&dscepoch,&base_adjust);
321 if (1 != (ret &&1)) {
327 ret=sys$gettim(&quad); /* Get VMS system time */
328 if ((1 && ret) == 1) {
330 quad[0] -= base_adjust[0]; /* convert to epoch offset */
331 quad[1] -= base_adjust[1]; /* convert 2nd half of quadword */
332 div_100ns_to_secs = DIV_100NS_TO_SECS;
333 div_100ns_to_usecs = DIV_100NS_TO_USECS;
334 lib$ediv(&div_100ns_to_secs,&quad,&quo,&rem);
337 lib$ediv(&div_100ns_to_usecs,&quad1,&quo1,&rem1);
338 tp->tv_sec = quo; /* Whole seconds */
339 tp->tv_usec = quo1; /* Micro-seconds */
341 quad -= base_adjust; /* convert to epoch offset */
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 */
353 if (VMSISH_TIME) tp->tv_sec = _toloc(tp->tv_sec);
355 if (!VMSISH_TIME) tp->tv_sec = _toutc(tp->tv_sec);
363 /* Do not use H A S _ N A N O S L E E P
364 * so that Perl Configure doesn't scan for it.
365 * The TIME_HIRES_NANOSLEEP is set by Makefile.PL. */
366 #if !defined(HAS_USLEEP) && defined(TIME_HIRES_NANOSLEEP)
368 #define usleep hrt_nanosleep /* could conflict with ncurses for static build */
371 hrt_nanosleep(unsigned long usec) /* This is used to emulate usleep. */
374 res.tv_sec = usec/1000/1000;
375 res.tv_nsec = ( usec - res.tv_sec*1000*1000 ) * 1000;
376 nanosleep(&res, NULL);
379 #endif /* #if !defined(HAS_USLEEP) && defined(TIME_HIRES_NANOSLEEP) */
381 #if !defined(HAS_USLEEP) && defined(HAS_SELECT)
382 #ifndef SELECT_IS_BROKEN
384 #define usleep hrt_usleep /* could conflict with ncurses for static build */
387 hrt_usleep(unsigned long usec)
392 select(0, (Select_fd_set_t)NULL, (Select_fd_set_t)NULL,
393 (Select_fd_set_t)NULL, &tv);
396 #endif /* #if !defined(HAS_USLEEP) && defined(HAS_SELECT) */
398 #if !defined(HAS_USLEEP) && defined(WIN32)
400 #define usleep hrt_usleep /* could conflict with ncurses for static build */
403 hrt_usleep(unsigned long usec)
409 #endif /* #if !defined(HAS_USLEEP) && defined(WIN32) */
412 #if !defined(HAS_UALARM) && defined(HAS_SETITIMER)
414 #define ualarm hrt_ualarm /* could conflict with ncurses for static build */
417 hrt_ualarm(int usec, int interval)
419 struct itimerval itv;
420 itv.it_value.tv_sec = usec / 1000000;
421 itv.it_value.tv_usec = usec % 1000000;
422 itv.it_interval.tv_sec = interval / 1000000;
423 itv.it_interval.tv_usec = interval % 1000000;
424 return setitimer(ITIMER_REAL, &itv, 0);
426 #endif /* #if !defined(HAS_UALARM) && defined(HAS_SETITIMER) */
428 #if !defined(HAS_UALARM) && defined(VMS)
430 #define ualarm vms_ualarm
432 #include <lib$routines.h>
440 #define VMSERR(s) (!((s)&1))
443 us_to_VMS(useconds_t mseconds, unsigned long v[])
452 iss = lib$addx(qq,qq,qq);
453 if (VMSERR(iss)) lib$signal(iss);
454 iss = lib$subx(v,qq,v);
455 if (VMSERR(iss)) lib$signal(iss);
456 iss = lib$addx(qq,qq,qq);
457 if (VMSERR(iss)) lib$signal(iss);
458 iss = lib$subx(v,qq,v);
459 if (VMSERR(iss)) lib$signal(iss);
460 iss = lib$subx(v,qq,v);
461 if (VMSERR(iss)) lib$signal(iss);
465 VMS_to_us(unsigned long v[])
468 unsigned long div=10,quot, rem;
470 iss = lib$ediv(&div,v,",&rem);
471 if (VMSERR(iss)) lib$signal(iss);
476 typedef unsigned short word;
477 typedef struct _ualarm {
480 unsigned long delay[2];
481 unsigned long interval[2];
482 unsigned long remain[2];
487 static Alarm *a0, alarm_base;
492 static void ualarm_AST(Alarm *a);
495 vms_ualarm(int mseconds, int interval)
504 static struct item_list3 itmlst[2];
505 static int first = 1;
511 itmlst[0].code = JPI$_ASTEN;
512 itmlst[0].length = sizeof(asten);
513 itmlst[0].retlenaddr = NULL;
515 itmlst[1].length = 0;
516 itmlst[1].bufaddr = NULL;
517 itmlst[1].retlenaddr = NULL;
519 iss = lib$get_ef(&alarm_ef);
520 if (VMSERR(iss)) lib$signal(iss);
523 a0->function = UAL_NULL;
525 itmlst[0].bufaddr = &asten;
527 iss = sys$getjpiw(0,0,0,itmlst,0,0,0);
528 if (VMSERR(iss)) lib$signal(iss);
529 if (!(asten&0x08)) return -1;
533 a->function = UAL_SET;
535 a->function = UAL_CLEAR;
538 us_to_VMS(mseconds, a->delay);
540 us_to_VMS(interval, a->interval);
545 iss = sys$clref(alarm_ef);
546 if (VMSERR(iss)) lib$signal(iss);
548 iss = sys$dclast(ualarm_AST,a,0);
549 if (VMSERR(iss)) lib$signal(iss);
551 iss = sys$waitfr(alarm_ef);
552 if (VMSERR(iss)) lib$signal(iss);
554 if (a->function == UAL_ACTIVE)
555 return VMS_to_us(a->remain);
566 unsigned long now[2];
568 iss = sys$gettim(now);
569 if (VMSERR(iss)) lib$signal(iss);
571 if (a->function == UAL_SET || a->function == UAL_CLEAR) {
572 if (a0->function == UAL_ACTIVE) {
573 iss = sys$cantim(a0,PSL$C_USER);
574 if (VMSERR(iss)) lib$signal(iss);
576 iss = lib$subx(a0->remain, now, a->remain);
577 if (VMSERR(iss)) lib$signal(iss);
579 if (a->remain[1] & 0x80000000)
580 a->remain[0] = a->remain[1] = 0;
583 if (a->function == UAL_SET) {
584 a->function = a0->function;
585 a0->function = UAL_ACTIVE;
586 a0->repeat = a->repeat;
588 a0->interval[0] = a->interval[0];
589 a0->interval[1] = a->interval[1];
591 a0->delay[0] = a->delay[0];
592 a0->delay[1] = a->delay[1];
594 iss = lib$subx(now, a0->delay, a0->remain);
595 if (VMSERR(iss)) lib$signal(iss);
597 iss = sys$setimr(0,a0->delay,ualarm_AST,a0);
598 if (VMSERR(iss)) lib$signal(iss);
600 a->function = a0->function;
601 a0->function = UAL_NULL;
603 iss = sys$setef(alarm_ef);
604 if (VMSERR(iss)) lib$signal(iss);
605 } else if (a->function == UAL_ACTIVE) {
607 iss = lib$subx(now, a->interval, a->remain);
608 if (VMSERR(iss)) lib$signal(iss);
610 iss = sys$setimr(0,a->interval,ualarm_AST,a);
611 if (VMSERR(iss)) lib$signal(iss);
613 a->function = UAL_NULL;
616 if (VMSERR(iss)) lib$signal(iss);
617 lib$signal(SS$_ASTFLT);
619 lib$signal(SS$_BADPARAM);
623 #endif /* #if !defined(HAS_UALARM) && defined(VMS) */
625 #ifdef HAS_GETTIMEOFDAY
628 myU2time(pTHX_ UV *ret)
632 status = gettimeofday (&Tp, NULL);
646 status = gettimeofday (&Tp, NULL);
647 return status == 0 ? Tp.tv_sec + (Tp.tv_usec / 1000000.) : -1.0;
650 #endif /* #ifdef HAS_GETTIMEOFDAY */
652 MODULE = Time::HiRes PACKAGE = Time::HiRes
661 #ifdef ATLEASTFIVEOHOHFIVE
662 #ifdef HAS_GETTIMEOFDAY
664 hv_store(PL_modglobal, "Time::NVtime", 12, newSViv(PTR2IV(myNVtime)), 0);
665 hv_store(PL_modglobal, "Time::U2time", 12, newSViv(PTR2IV(myU2time)), 0);
671 #if defined(USE_ITHREADS) && defined(MY_CXT_KEY)
680 INCLUDE: const-xs.inc
682 #if defined(HAS_USLEEP) && defined(HAS_GETTIMEOFDAY)
688 struct timeval Ta, Tb;
690 gettimeofday(&Ta, NULL);
692 if (useconds > 1E6) {
693 IV seconds = (IV) (useconds / 1E6);
694 /* If usleep() has been implemented using setitimer()
695 * then this contortion is unnecessary-- but usleep()
696 * may be implemented in some other way, so let's contort. */
699 useconds -= 1E6 * seconds;
701 } else if (useconds < 0.0)
702 croak("Time::HiRes::usleep(%"NVgf"): negative time not invented yet", useconds);
703 usleep((U32)useconds);
706 gettimeofday(&Tb, NULL);
708 printf("[%ld %ld] [%ld %ld]\n", Tb.tv_sec, Tb.tv_usec, Ta.tv_sec, Ta.tv_usec);
710 RETVAL = 1E6*(Tb.tv_sec-Ta.tv_sec)+(NV)((IV)Tb.tv_usec-(IV)Ta.tv_usec);
715 #if defined(TIME_HIRES_NANOSLEEP)
721 struct timeval Ta, Tb;
723 gettimeofday(&Ta, NULL);
726 if (nseconds > 1E9) {
727 IV seconds = (IV) (nseconds / 1E9);
730 nseconds -= 1E9 * seconds;
732 } else if (nseconds < 0.0)
733 croak("Time::HiRes::nanosleep(%"NVgf"): negative time not invented yet", nseconds);
734 tsa.tv_sec = (IV) (nseconds / 1E9);
735 tsa.tv_nsec = (IV) nseconds - tsa.tv_sec * 1E9;
736 nanosleep(&tsa, NULL);
739 gettimeofday(&Tb, NULL);
740 RETVAL = 1E3*(1E6*(Tb.tv_sec-Ta.tv_sec)+(NV)((IV)Tb.tv_usec-(IV)Ta.tv_usec));
745 #else /* #if defined(TIME_HIRES_NANOSLEEP) */
751 croak("Time::HiRes::nanosleep(): unimplemented in this platform");
754 #endif /* #if defined(TIME_HIRES_NANOSLEEP) */
759 struct timeval Ta, Tb;
761 gettimeofday(&Ta, NULL);
763 NV seconds = SvNV(ST(0));
764 if (seconds >= 0.0) {
765 UV useconds = (UV)(1E6 * (seconds - (UV)seconds));
768 if ((IV)useconds < 0) {
769 #if defined(__sparc64__) && defined(__GNUC__)
770 /* Sparc64 gcc 2.95.3 (e.g. on NetBSD) has a bug
771 * where (0.5 - (UV)(0.5)) will under certain
772 * circumstances (if the double is cast to UV more
773 * than once?) evaluate to -0.5, instead of 0.5. */
774 useconds = -(IV)useconds;
775 #endif /* #if defined(__sparc64__) && defined(__GNUC__) */
776 if ((IV)useconds < 0)
777 croak("Time::HiRes::sleep(%"NVgf"): internal error: useconds < 0 (unsigned %"UVuf" signed %"IVdf")", seconds, useconds, (IV)useconds);
781 croak("Time::HiRes::sleep(%"NVgf"): negative time not invented yet", seconds);
784 gettimeofday(&Tb, NULL);
786 printf("[%ld %ld] [%ld %ld]\n", Tb.tv_sec, Tb.tv_usec, Ta.tv_sec, Ta.tv_usec);
788 RETVAL = (NV)(Tb.tv_sec-Ta.tv_sec)+0.000001*(NV)(Tb.tv_usec-Ta.tv_usec);
793 #else /* #if defined(HAS_USLEEP) && defined(HAS_GETTIMEOFDAY) */
799 croak("Time::HiRes::usleep(): unimplemented in this platform");
802 #endif /* #if defined(HAS_USLEEP) && defined(HAS_GETTIMEOFDAY) */
807 ualarm(useconds,interval=0)
811 if (useconds < 0 || interval < 0)
812 croak("Time::HiRes::ualarm(%d, %d): negative time not invented yet", useconds, interval);
813 RETVAL = ualarm(useconds, interval);
819 alarm(seconds,interval=0)
823 if (seconds < 0.0 || interval < 0.0)
824 croak("Time::HiRes::alarm(%"NVgf", %"NVgf"): negative time not invented yet", seconds, interval);
825 RETVAL = (NV)ualarm(seconds * 1000000,
826 interval * 1000000) / 1E6;
834 ualarm(useconds,interval=0)
838 croak("Time::HiRes::ualarm(): unimplemented in this platform");
842 alarm(seconds,interval=0)
846 croak("Time::HiRes::alarm(): unimplemented in this platform");
849 #endif /* #ifdef HAS_UALARM */
851 #ifdef HAS_GETTIMEOFDAY
852 # ifdef MACOS_TRADITIONAL /* fix epoch TZ and use unsigned time_t */
860 status = gettimeofday (&Tp, &Tz);
863 Tp.tv_sec += Tz.tz_minuteswest * 60; /* adjust for TZ */
864 if (GIMME == G_ARRAY) {
866 /* Mac OS (Classic) has unsigned time_t */
867 PUSHs(sv_2mortal(newSVuv(Tp.tv_sec)));
868 PUSHs(sv_2mortal(newSViv(Tp.tv_usec)));
871 PUSHs(sv_2mortal(newSVnv(Tp.tv_sec + (Tp.tv_usec / 1000000.0))));
882 status = gettimeofday (&Tp, &Tz);
884 Tp.tv_sec += Tz.tz_minuteswest * 60; /* adjust for TZ */
885 RETVAL = Tp.tv_sec + (Tp.tv_usec / 1000000.0);
892 # else /* MACOS_TRADITIONAL */
899 status = gettimeofday (&Tp, NULL);
901 if (GIMME == G_ARRAY) {
903 PUSHs(sv_2mortal(newSViv(Tp.tv_sec)));
904 PUSHs(sv_2mortal(newSViv(Tp.tv_usec)));
907 PUSHs(sv_2mortal(newSVnv(Tp.tv_sec + (Tp.tv_usec / 1000000.0))));
917 status = gettimeofday (&Tp, NULL);
919 RETVAL = Tp.tv_sec + (Tp.tv_usec / 1000000.);
926 # endif /* MACOS_TRADITIONAL */
927 #endif /* #ifdef HAS_GETTIMEOFDAY */
929 #if defined(HAS_GETITIMER) && defined(HAS_SETITIMER)
931 #define TV2NV(tv) ((NV)((tv).tv_sec) + 0.000001 * (NV)((tv).tv_usec))
934 setitimer(which, seconds, interval = 0)
939 struct itimerval newit;
940 struct itimerval oldit;
942 if (seconds < 0.0 || interval < 0.0)
943 croak("Time::HiRes::setitimer(%"IVdf", %"NVgf", %"NVgf"): negative time not invented yet", (IV)which, seconds, interval);
944 newit.it_value.tv_sec = seconds;
945 newit.it_value.tv_usec =
946 (seconds - (NV)newit.it_value.tv_sec) * 1000000.0;
947 newit.it_interval.tv_sec = interval;
948 newit.it_interval.tv_usec =
949 (interval - (NV)newit.it_interval.tv_sec) * 1000000.0;
950 if (setitimer(which, &newit, &oldit) == 0) {
952 PUSHs(sv_2mortal(newSVnv(TV2NV(oldit.it_value))));
953 if (GIMME == G_ARRAY) {
955 PUSHs(sv_2mortal(newSVnv(TV2NV(oldit.it_interval))));
963 struct itimerval nowit;
965 if (getitimer(which, &nowit) == 0) {
967 PUSHs(sv_2mortal(newSVnv(TV2NV(nowit.it_value))));
968 if (GIMME == G_ARRAY) {
970 PUSHs(sv_2mortal(newSVnv(TV2NV(nowit.it_interval))));
974 #endif /* #if defined(HAS_GETITIMER) && defined(HAS_SETITIMER) */
976 #if defined(TIME_HIRES_CLOCK_GETTIME)
979 clock_gettime(clock_id = CLOCK_REALTIME)
985 #ifdef TIME_HIRES_CLOCK_GETTIME_SYSCALL
986 status = syscall(SYS_clock_gettime, clock_id, &ts);
988 status = clock_gettime(clock_id, &ts);
990 RETVAL = status == 0 ? ts.tv_sec + (NV) ts.tv_nsec / (NV) 1e9 : -1;
995 #else /* if defined(TIME_HIRES_CLOCK_GETTIME) */
998 clock_gettime(clock_id = 0)
1001 croak("Time::HiRes::clock_gettime(): unimplemented in this platform");
1004 #endif /* #if defined(TIME_HIRES_CLOCK_GETTIME) */
1006 #if defined(TIME_HIRES_CLOCK_GETRES)
1009 clock_getres(clock_id = CLOCK_REALTIME)
1015 #ifdef TIME_HIRES_CLOCK_GETRES_SYSCALL
1016 status = syscall(SYS_clock_getres, clock_id, &ts);
1018 status = clock_getres(clock_id, &ts);
1020 RETVAL = status == 0 ? ts.tv_sec + (NV) ts.tv_nsec / (NV) 1e9 : -1;
1025 #else /* if defined(TIME_HIRES_CLOCK_GETRES) */
1028 clock_getres(clock_id = 0)
1031 croak("Time::HiRes::clock_getres(): unimplemented in this platform");
1034 #endif /* #if defined(TIME_HIRES_CLOCK_GETRES) */