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[p5sagit/p5-mst-13.2.git] / ext / Time / HiRes / HiRes.xs
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f8daf111 1/*
2 *
3 * Copyright (c) 1996-2002 Douglas E. Wegscheid. All rights reserved.
4 *
bf8300de 5 * Copyright (c) 2002,2003,2004,2005,2006,2007,2008 Jarkko Hietaniemi.
6 * All rights reserved.
f8daf111 7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the same terms as Perl itself.
10 */
11
dcf686c9 12#ifdef __cplusplus
13extern "C" {
14#endif
0225372c 15#define PERL_NO_GET_CONTEXT
dcf686c9 16#include "EXTERN.h"
17#include "perl.h"
18#include "XSUB.h"
1fbb4de4 19#include "ppport.h"
4ed0e2d4 20#if defined(__CYGWIN__) && defined(HAS_W32API_WINDOWS_H)
21# include <w32api/windows.h>
22# define CYGWIN_WITH_W32API
23#endif
dcf686c9 24#ifdef WIN32
4ed0e2d4 25# include <time.h>
dcf686c9 26#else
4ed0e2d4 27# include <sys/time.h>
dcf686c9 28#endif
36df99d6 29#ifdef HAS_SELECT
30# ifdef I_SYS_SELECT
31# include <sys/select.h>
32# endif
33#endif
ced84e60 34#if defined(TIME_HIRES_CLOCK_GETTIME_SYSCALL) || defined(TIME_HIRES_CLOCK_GETRES_SYSCALL)
35#include <syscall.h>
36#endif
dcf686c9 37#ifdef __cplusplus
38}
39#endif
40
bf8300de 41/* At least ppport.h 3.13 gets this wrong: one really cannot
42 * have NVgf as anything else than "g" under Perl 5.6.x. */
43#if PERL_REVISION == 5 && PERL_VERSION == 6
44# undef NVgf
45# define NVgf "g"
46#endif
47
b69b1b83 48#define IV_1E6 1000000
49#define IV_1E7 10000000
50#define IV_1E9 1000000000
51
47e797f6 52#define NV_1E6 1000000.0
53#define NV_1E7 10000000.0
54#define NV_1E9 1000000000.0
55
1fbb4de4 56#ifndef PerlProc_pause
57# define PerlProc_pause() Pause()
3f2ee006 58#endif
59
1fbb4de4 60#ifdef HAS_PAUSE
61# define Pause pause
3f2ee006 62#else
27da23d5 63# undef Pause /* In case perl.h did it already. */
64a7a97c 64# define Pause() sleep(~0) /* Zzz for a long time. */
3f2ee006 65#endif
66
67/* Though the cpp define ITIMER_VIRTUAL is available the functionality
4ed0e2d4 68 * is not supported in Cygwin as of August 2004, ditto for Win32.
3f2ee006 69 * Neither are ITIMER_PROF or ITIMER_REALPROF implemented. --jhi
70 */
71#if defined(__CYGWIN__) || defined(WIN32)
72# undef ITIMER_VIRTUAL
73# undef ITIMER_PROF
74# undef ITIMER_REALPROF
75#endif
76
82cbdcc3 77#if defined(TIME_HIRES_CLOCK_GETTIME) && defined(_STRUCT_ITIMERSPEC)
78
79/* HP-UX has CLOCK_XXX values but as enums, not as defines.
80 * The only way to detect these would be to test compile for each. */
81# ifdef __hpux
bf8300de 82/* However, it seems that at least in HP-UX 11.31 ia64 there *are*
83 * defines for these, so let's try detecting them. */
84# ifndef CLOCK_REALTIME
85# define CLOCK_REALTIME CLOCK_REALTIME
86# define CLOCK_VIRTUAL CLOCK_VIRTUAL
87# define CLOCK_PROFILE CLOCK_PROFILE
88# endif
82cbdcc3 89# endif /* # ifdef __hpux */
90
91#endif /* #if defined(TIME_HIRES_CLOCK_GETTIME) && defined(_STRUCT_ITIMERSPEC) */
3c72ec00 92
4ed0e2d4 93#if defined(WIN32) || defined(CYGWIN_WITH_W32API)
0225372c 94
95#ifndef HAS_GETTIMEOFDAY
96# define HAS_GETTIMEOFDAY
97#endif
fd44fdfd 98
6e3b076d 99/* shows up in winsock.h?
100struct timeval {
101 long tv_sec;
102 long tv_usec;
103}
104*/
105
fd44fdfd 106typedef union {
107 unsigned __int64 ft_i64;
108 FILETIME ft_val;
109} FT_t;
110
0225372c 111#define MY_CXT_KEY "Time::HiRes_" XS_VERSION
112
113typedef struct {
114 unsigned long run_count;
115 unsigned __int64 base_ticks;
116 unsigned __int64 tick_frequency;
117 FT_t base_systime_as_filetime;
4ed0e2d4 118 unsigned __int64 reset_time;
0225372c 119} my_cxt_t;
120
121START_MY_CXT
122
6e3b076d 123/* Number of 100 nanosecond units from 1/1/1601 to 1/1/1970 */
fd44fdfd 124#ifdef __GNUC__
4ed0e2d4 125# define Const64(x) x##LL
fd44fdfd 126#else
4ed0e2d4 127# define Const64(x) x##i64
fd44fdfd 128#endif
fd44fdfd 129#define EPOCH_BIAS Const64(116444736000000000)
130
f445b110 131#ifdef Const64
132# ifdef __GNUC__
133# define IV_1E6LL 1000000LL /* Needed because of Const64() ##-appends LL (or i64). */
134# define IV_1E7LL 10000000LL
135# define IV_1E9LL 1000000000LL
136# else
137# define IV_1E6i64 1000000i64
138# define IV_1E7i64 10000000i64
139# define IV_1E9i64 1000000000i64
140# endif
141#endif
142
fd44fdfd 143/* NOTE: This does not compute the timezone info (doing so can be expensive,
144 * and appears to be unsupported even by glibc) */
0225372c 145
146/* dMY_CXT needs a Perl context and we don't want to call PERL_GET_CONTEXT
147 for performance reasons */
148
149#undef gettimeofday
150#define gettimeofday(tp, not_used) _gettimeofday(aTHX_ tp, not_used)
151
d8cb5b61 152/* If the performance counter delta drifts more than 0.5 seconds from the
153 * system time then we recalibrate to the system time. This means we may
c1dc6e7c 154 * move *backwards* in time! */
4ed0e2d4 155#define MAX_PERF_COUNTER_SKEW Const64(5000000) /* 0.5 seconds */
c1dc6e7c 156
4ed0e2d4 157/* Reset reading from the performance counter every five minutes.
158 * Many PC clocks just seem to be so bad. */
159#define MAX_PERF_COUNTER_TICKS Const64(300000000) /* 300 seconds */
c1dc6e7c 160
0225372c 161static int
162_gettimeofday(pTHX_ struct timeval *tp, void *not_used)
fd44fdfd 163{
0225372c 164 dMY_CXT;
165
166 unsigned __int64 ticks;
fd44fdfd 167 FT_t ft;
168
4ed0e2d4 169 if (MY_CXT.run_count++ == 0 ||
170 MY_CXT.base_systime_as_filetime.ft_i64 > MY_CXT.reset_time) {
171 QueryPerformanceFrequency((LARGE_INTEGER*)&MY_CXT.tick_frequency);
172 QueryPerformanceCounter((LARGE_INTEGER*)&MY_CXT.base_ticks);
173 GetSystemTimeAsFileTime(&MY_CXT.base_systime_as_filetime.ft_val);
174 ft.ft_i64 = MY_CXT.base_systime_as_filetime.ft_i64;
175 MY_CXT.reset_time = ft.ft_i64 + MAX_PERF_COUNTER_TICKS;
176 }
177 else {
c1dc6e7c 178 __int64 diff;
0225372c 179 QueryPerformanceCounter((LARGE_INTEGER*)&ticks);
180 ticks -= MY_CXT.base_ticks;
181 ft.ft_i64 = MY_CXT.base_systime_as_filetime.ft_i64
47e797f6 182 + Const64(IV_1E7) * (ticks / MY_CXT.tick_frequency)
183 +(Const64(IV_1E7) * (ticks % MY_CXT.tick_frequency)) / MY_CXT.tick_frequency;
c1dc6e7c 184 diff = ft.ft_i64 - MY_CXT.base_systime_as_filetime.ft_i64;
4ed0e2d4 185 if (diff < -MAX_PERF_COUNTER_SKEW || diff > MAX_PERF_COUNTER_SKEW) {
186 MY_CXT.base_ticks += ticks;
187 GetSystemTimeAsFileTime(&MY_CXT.base_systime_as_filetime.ft_val);
188 ft.ft_i64 = MY_CXT.base_systime_as_filetime.ft_i64;
c1dc6e7c 189 }
0225372c 190 }
fd44fdfd 191
192 /* seconds since epoch */
47e797f6 193 tp->tv_sec = (long)((ft.ft_i64 - EPOCH_BIAS) / Const64(IV_1E7));
fd44fdfd 194
195 /* microseconds remaining */
47e797f6 196 tp->tv_usec = (long)((ft.ft_i64 / Const64(10)) % Const64(IV_1E6));
fd44fdfd 197
198 return 0;
199}
6e3b076d 200#endif
fd44fdfd 201
0225372c 202#if defined(WIN32) && !defined(ATLEASTFIVEOHOHFIVE)
203static unsigned int
204sleep(unsigned int t)
205{
206 Sleep(t*1000);
207 return 0;
208}
209#endif
210
dcf686c9 211#if !defined(HAS_GETTIMEOFDAY) && defined(VMS)
212#define HAS_GETTIMEOFDAY
213
9b6f56ad 214#include <lnmdef.h>
dcf686c9 215#include <time.h> /* gettimeofday */
216#include <stdlib.h> /* qdiv */
217#include <starlet.h> /* sys$gettim */
218#include <descrip.h>
3785778e 219#ifdef __VAX
220#include <lib$routines.h> /* lib$ediv() */
221#endif
dcf686c9 222
223/*
224 VMS binary time is expressed in 100 nano-seconds since
225 system base time which is 17-NOV-1858 00:00:00.00
226*/
227
228#define DIV_100NS_TO_SECS 10000000L
229#define DIV_100NS_TO_USECS 10L
230
231/*
232 gettimeofday is supposed to return times since the epoch
233 so need to determine this in terms of VMS base time
234*/
235static $DESCRIPTOR(dscepoch,"01-JAN-1970 00:00:00.00");
236
5cdb7193 237#ifdef __VAX
3785778e 238static long base_adjust[2]={0L,0L};
5cdb7193 239#else
dcf686c9 240static __int64 base_adjust=0;
5cdb7193 241#endif
dcf686c9 242
9b6f56ad 243/*
244
245 If we don't have gettimeofday, then likely we are on a VMS machine that
246 operates on local time rather than UTC...so we have to zone-adjust.
247 This code gleefully swiped from VMS.C
248
249*/
250/* method used to handle UTC conversions:
251 * 1 == CRTL gmtime(); 2 == SYS$TIMEZONE_DIFFERENTIAL; 3 == no correction
252 */
253static int gmtime_emulation_type;
254/* number of secs to add to UTC POSIX-style time to get local time */
255static long int utc_offset_secs;
256static struct dsc$descriptor_s fildevdsc =
257 { 12, DSC$K_DTYPE_T, DSC$K_CLASS_S, "LNM$FILE_DEV" };
258static struct dsc$descriptor_s *fildev[] = { &fildevdsc, NULL };
259
260static time_t toutc_dst(time_t loc) {
261 struct tm *rsltmp;
262
263 if ((rsltmp = localtime(&loc)) == NULL) return -1;
264 loc -= utc_offset_secs;
265 if (rsltmp->tm_isdst) loc -= 3600;
266 return loc;
267}
268
269static time_t toloc_dst(time_t utc) {
270 struct tm *rsltmp;
271
272 utc += utc_offset_secs;
273 if ((rsltmp = localtime(&utc)) == NULL) return -1;
274 if (rsltmp->tm_isdst) utc += 3600;
275 return utc;
276}
277
278#define _toutc(secs) ((secs) == (time_t) -1 ? (time_t) -1 : \
279 ((gmtime_emulation_type || timezone_setup()), \
280 (gmtime_emulation_type == 1 ? toutc_dst(secs) : \
281 ((secs) - utc_offset_secs))))
282
283#define _toloc(secs) ((secs) == (time_t) -1 ? (time_t) -1 : \
284 ((gmtime_emulation_type || timezone_setup()), \
285 (gmtime_emulation_type == 1 ? toloc_dst(secs) : \
286 ((secs) + utc_offset_secs))))
287
288static int
289timezone_setup(void)
290{
291 struct tm *tm_p;
292
293 if (gmtime_emulation_type == 0) {
294 int dstnow;
295 time_t base = 15 * 86400; /* 15jan71; to avoid month/year ends between */
296 /* results of calls to gmtime() and localtime() */
297 /* for same &base */
298
299 gmtime_emulation_type++;
300 if ((tm_p = gmtime(&base)) == NULL) { /* CRTL gmtime() is a fake */
301 char off[LNM$C_NAMLENGTH+1];;
302
303 gmtime_emulation_type++;
304 if (!Perl_vmstrnenv("SYS$TIMEZONE_DIFFERENTIAL",off,0,fildev,0)) {
305 gmtime_emulation_type++;
306 utc_offset_secs = 0;
307 Perl_warn(aTHX_ "no UTC offset information; assuming local time is UTC");
308 }
309 else { utc_offset_secs = atol(off); }
310 }
311 else { /* We've got a working gmtime() */
312 struct tm gmt, local;
313
314 gmt = *tm_p;
315 tm_p = localtime(&base);
316 local = *tm_p;
317 utc_offset_secs = (local.tm_mday - gmt.tm_mday) * 86400;
318 utc_offset_secs += (local.tm_hour - gmt.tm_hour) * 3600;
319 utc_offset_secs += (local.tm_min - gmt.tm_min) * 60;
320 utc_offset_secs += (local.tm_sec - gmt.tm_sec);
321 }
322 }
323 return 1;
324}
325
326
dcf686c9 327int
328gettimeofday (struct timeval *tp, void *tpz)
329{
330 long ret;
5cdb7193 331#ifdef __VAX
3785778e 332 long quad[2];
333 long quad1[2];
334 long div_100ns_to_secs;
335 long div_100ns_to_usecs;
336 long quo,rem;
337 long quo1,rem1;
5cdb7193 338#else
dcf686c9 339 __int64 quad;
340 __qdiv_t ans1,ans2;
5cdb7193 341#endif
dcf686c9 342/*
343 In case of error, tv_usec = 0 and tv_sec = VMS condition code.
344 The return from function is also set to -1.
345 This is not exactly as per the manual page.
346*/
347
348 tp->tv_usec = 0;
349
3785778e 350#ifdef __VAX
351 if (base_adjust[0]==0 && base_adjust[1]==0) {
352#else
dcf686c9 353 if (base_adjust==0) { /* Need to determine epoch adjustment */
3785778e 354#endif
dcf686c9 355 ret=sys$bintim(&dscepoch,&base_adjust);
356 if (1 != (ret &&1)) {
357 tp->tv_sec = ret;
358 return -1;
359 }
360 }
361
362 ret=sys$gettim(&quad); /* Get VMS system time */
363 if ((1 && ret) == 1) {
5cdb7193 364#ifdef __VAX
3785778e 365 quad[0] -= base_adjust[0]; /* convert to epoch offset */
366 quad[1] -= base_adjust[1]; /* convert 2nd half of quadword */
367 div_100ns_to_secs = DIV_100NS_TO_SECS;
368 div_100ns_to_usecs = DIV_100NS_TO_USECS;
369 lib$ediv(&div_100ns_to_secs,&quad,&quo,&rem);
370 quad1[0] = rem;
371 quad1[1] = 0L;
372 lib$ediv(&div_100ns_to_usecs,&quad1,&quo1,&rem1);
373 tp->tv_sec = quo; /* Whole seconds */
374 tp->tv_usec = quo1; /* Micro-seconds */
5cdb7193 375#else
3785778e 376 quad -= base_adjust; /* convert to epoch offset */
dcf686c9 377 ans1=qdiv(quad,DIV_100NS_TO_SECS);
378 ans2=qdiv(ans1.rem,DIV_100NS_TO_USECS);
379 tp->tv_sec = ans1.quot; /* Whole seconds */
380 tp->tv_usec = ans2.quot; /* Micro-seconds */
3785778e 381#endif
dcf686c9 382 } else {
383 tp->tv_sec = ret;
384 return -1;
385 }
9b6f56ad 386# ifdef VMSISH_TIME
387# ifdef RTL_USES_UTC
388 if (VMSISH_TIME) tp->tv_sec = _toloc(tp->tv_sec);
389# else
390 if (!VMSISH_TIME) tp->tv_sec = _toutc(tp->tv_sec);
391# endif
392# endif
dcf686c9 393 return 0;
394}
395#endif
396
3f2ee006 397
046e3f33 398 /* Do not use H A S _ N A N O S L E E P
70cf0185 399 * so that Perl Configure doesn't scan for it (and pull in -lrt and
400 * the like which are not usually good ideas for the default Perl).
e5433ad8 401 * (We are part of the core perl now.)
046e3f33 402 * The TIME_HIRES_NANOSLEEP is set by Makefile.PL. */
403#if !defined(HAS_USLEEP) && defined(TIME_HIRES_NANOSLEEP)
3f2ee006 404#define HAS_USLEEP
3d0346a5 405#define usleep hrt_nanosleep /* could conflict with ncurses for static build */
3f2ee006 406
407void
3d0346a5 408hrt_nanosleep(unsigned long usec) /* This is used to emulate usleep. */
3f2ee006 409{
410 struct timespec res;
47e797f6 411 res.tv_sec = usec / IV_1E6;
412 res.tv_nsec = ( usec - res.tv_sec * IV_1E6 ) * 1000;
3f2ee006 413 nanosleep(&res, NULL);
414}
3f2ee006 415
44d3ce20 416#endif /* #if !defined(HAS_USLEEP) && defined(TIME_HIRES_NANOSLEEP) */
3f2ee006 417
dcf686c9 418#if !defined(HAS_USLEEP) && defined(HAS_SELECT)
419#ifndef SELECT_IS_BROKEN
420#define HAS_USLEEP
421#define usleep hrt_usleep /* could conflict with ncurses for static build */
422
423void
424hrt_usleep(unsigned long usec)
425{
426 struct timeval tv;
427 tv.tv_sec = 0;
428 tv.tv_usec = usec;
429 select(0, (Select_fd_set_t)NULL, (Select_fd_set_t)NULL,
430 (Select_fd_set_t)NULL, &tv);
431}
432#endif
44d3ce20 433#endif /* #if !defined(HAS_USLEEP) && defined(HAS_SELECT) */
dcf686c9 434
435#if !defined(HAS_USLEEP) && defined(WIN32)
436#define HAS_USLEEP
437#define usleep hrt_usleep /* could conflict with ncurses for static build */
438
439void
440hrt_usleep(unsigned long usec)
441{
442 long msec;
443 msec = usec / 1000;
444 Sleep (msec);
445}
44d3ce20 446#endif /* #if !defined(HAS_USLEEP) && defined(WIN32) */
dcf686c9 447
70cf0185 448#if !defined(HAS_USLEEP) && defined(TIME_HIRES_NANOSLEEP)
e5433ad8 449#define HAS_USLEEP
450#define usleep hrt_usleep /* could conflict with ncurses for static build */
451
452void
453hrt_usleep(unsigned long usec)
454{
170c5524 455 struct timespec ts1;
456 ts1.tv_sec = usec * 1000; /* Ignoring wraparound. */
457 ts1.tv_nsec = 0;
458 nanosleep(&ts1, NULL);
e5433ad8 459}
460
b311af62 461#endif /* #if !defined(HAS_USLEEP) && defined(TIME_HIRES_NANOSLEEP) */
e5433ad8 462
463#if !defined(HAS_USLEEP) && defined(HAS_POLL)
464#define HAS_USLEEP
465#define usleep hrt_usleep /* could conflict with ncurses for static build */
466
467void
468hrt_usleep(unsigned long usec)
469{
470 int msec = usec / 1000;
471 poll(0, 0, msec);
472}
473
474#endif /* #if !defined(HAS_USLEEP) && defined(HAS_POLL) */
dcf686c9 475
34f69483 476#if defined(HAS_SETITIMER) && defined(ITIMER_REAL)
bf8300de 477
478static int
479hrt_ualarm_itimero(struct itimerval* itv, int usec, int uinterval)
480{
481 itv->it_value.tv_sec = usec / IV_1E6;
482 itv->it_value.tv_usec = usec % IV_1E6;
483 itv->it_interval.tv_sec = uinterval / IV_1E6;
484 itv->it_interval.tv_usec = uinterval % IV_1E6;
485 return setitimer(ITIMER_REAL, itv, 0);
486}
487
dcf686c9 488int
bf8300de 489hrt_ualarm_itimer(int usec, int uinterval)
dcf686c9 490{
bf8300de 491 struct itimerval itv;
492 return hrt_ualarm_itimero(&itv, usec, uinterval);
dcf686c9 493}
bf8300de 494
75d5269b 495#ifdef HAS_UALARM
496int
497hrt_ualarm(int usec, int interval) /* for binary compat before 1.91 */
498{
499 return hrt_ualarm_itimer(usec, interval);
500}
501#endif /* #ifdef HAS_UALARM */
44d3ce20 502#endif /* #if !defined(HAS_UALARM) && defined(HAS_SETITIMER) */
dcf686c9 503
34f69483 504#if !defined(HAS_UALARM) && defined(HAS_SETITIMER)
505#define HAS_UALARM
506#define ualarm hrt_ualarm_itimer /* could conflict with ncurses for static build */
507#endif
508
ca40fe49 509#if !defined(HAS_UALARM) && defined(VMS)
510#define HAS_UALARM
511#define ualarm vms_ualarm
512
513#include <lib$routines.h>
514#include <ssdef.h>
515#include <starlet.h>
516#include <descrip.h>
517#include <signal.h>
518#include <jpidef.h>
519#include <psldef.h>
520
521#define VMSERR(s) (!((s)&1))
522
523static void
524us_to_VMS(useconds_t mseconds, unsigned long v[])
525{
526 int iss;
527 unsigned long qq[2];
528
529 qq[0] = mseconds;
530 qq[1] = 0;
531 v[0] = v[1] = 0;
532
533 iss = lib$addx(qq,qq,qq);
534 if (VMSERR(iss)) lib$signal(iss);
535 iss = lib$subx(v,qq,v);
536 if (VMSERR(iss)) lib$signal(iss);
537 iss = lib$addx(qq,qq,qq);
538 if (VMSERR(iss)) lib$signal(iss);
539 iss = lib$subx(v,qq,v);
540 if (VMSERR(iss)) lib$signal(iss);
541 iss = lib$subx(v,qq,v);
542 if (VMSERR(iss)) lib$signal(iss);
543}
544
545static int
546VMS_to_us(unsigned long v[])
547{
548 int iss;
549 unsigned long div=10,quot, rem;
550
551 iss = lib$ediv(&div,v,&quot,&rem);
552 if (VMSERR(iss)) lib$signal(iss);
553
554 return quot;
555}
556
557typedef unsigned short word;
558typedef struct _ualarm {
559 int function;
560 int repeat;
561 unsigned long delay[2];
562 unsigned long interval[2];
563 unsigned long remain[2];
564} Alarm;
565
566
567static int alarm_ef;
568static Alarm *a0, alarm_base;
569#define UAL_NULL 0
570#define UAL_SET 1
571#define UAL_CLEAR 2
572#define UAL_ACTIVE 4
573static void ualarm_AST(Alarm *a);
574
575static int
576vms_ualarm(int mseconds, int interval)
577{
578 Alarm *a, abase;
579 struct item_list3 {
580 word length;
581 word code;
582 void *bufaddr;
583 void *retlenaddr;
584 } ;
585 static struct item_list3 itmlst[2];
586 static int first = 1;
587 unsigned long asten;
588 int iss, enabled;
589
590 if (first) {
591 first = 0;
592 itmlst[0].code = JPI$_ASTEN;
593 itmlst[0].length = sizeof(asten);
594 itmlst[0].retlenaddr = NULL;
595 itmlst[1].code = 0;
596 itmlst[1].length = 0;
597 itmlst[1].bufaddr = NULL;
598 itmlst[1].retlenaddr = NULL;
599
600 iss = lib$get_ef(&alarm_ef);
601 if (VMSERR(iss)) lib$signal(iss);
602
603 a0 = &alarm_base;
604 a0->function = UAL_NULL;
605 }
606 itmlst[0].bufaddr = &asten;
607
608 iss = sys$getjpiw(0,0,0,itmlst,0,0,0);
609 if (VMSERR(iss)) lib$signal(iss);
610 if (!(asten&0x08)) return -1;
611
612 a = &abase;
613 if (mseconds) {
614 a->function = UAL_SET;
615 } else {
616 a->function = UAL_CLEAR;
617 }
618
619 us_to_VMS(mseconds, a->delay);
620 if (interval) {
621 us_to_VMS(interval, a->interval);
622 a->repeat = 1;
623 } else
624 a->repeat = 0;
625
626 iss = sys$clref(alarm_ef);
627 if (VMSERR(iss)) lib$signal(iss);
628
629 iss = sys$dclast(ualarm_AST,a,0);
630 if (VMSERR(iss)) lib$signal(iss);
631
632 iss = sys$waitfr(alarm_ef);
633 if (VMSERR(iss)) lib$signal(iss);
634
635 if (a->function == UAL_ACTIVE)
636 return VMS_to_us(a->remain);
637 else
638 return 0;
639}
640
641
642
643static void
644ualarm_AST(Alarm *a)
645{
646 int iss;
647 unsigned long now[2];
648
649 iss = sys$gettim(now);
650 if (VMSERR(iss)) lib$signal(iss);
651
652 if (a->function == UAL_SET || a->function == UAL_CLEAR) {
653 if (a0->function == UAL_ACTIVE) {
654 iss = sys$cantim(a0,PSL$C_USER);
655 if (VMSERR(iss)) lib$signal(iss);
656
657 iss = lib$subx(a0->remain, now, a->remain);
658 if (VMSERR(iss)) lib$signal(iss);
659
660 if (a->remain[1] & 0x80000000)
661 a->remain[0] = a->remain[1] = 0;
662 }
663
664 if (a->function == UAL_SET) {
665 a->function = a0->function;
666 a0->function = UAL_ACTIVE;
667 a0->repeat = a->repeat;
668 if (a0->repeat) {
669 a0->interval[0] = a->interval[0];
670 a0->interval[1] = a->interval[1];
671 }
672 a0->delay[0] = a->delay[0];
673 a0->delay[1] = a->delay[1];
674
675 iss = lib$subx(now, a0->delay, a0->remain);
676 if (VMSERR(iss)) lib$signal(iss);
677
678 iss = sys$setimr(0,a0->delay,ualarm_AST,a0);
679 if (VMSERR(iss)) lib$signal(iss);
680 } else {
681 a->function = a0->function;
682 a0->function = UAL_NULL;
683 }
684 iss = sys$setef(alarm_ef);
685 if (VMSERR(iss)) lib$signal(iss);
686 } else if (a->function == UAL_ACTIVE) {
687 if (a->repeat) {
688 iss = lib$subx(now, a->interval, a->remain);
689 if (VMSERR(iss)) lib$signal(iss);
690
691 iss = sys$setimr(0,a->interval,ualarm_AST,a);
692 if (VMSERR(iss)) lib$signal(iss);
693 } else {
694 a->function = UAL_NULL;
695 }
696 iss = sys$wake(0,0);
697 if (VMSERR(iss)) lib$signal(iss);
698 lib$signal(SS$_ASTFLT);
699 } else {
700 lib$signal(SS$_BADPARAM);
701 }
702}
703
44d3ce20 704#endif /* #if !defined(HAS_UALARM) && defined(VMS) */
ca40fe49 705
dcf686c9 706#ifdef HAS_GETTIMEOFDAY
707
a2e20b18 708static int
0225372c 709myU2time(pTHX_ UV *ret)
dcf686c9 710{
711 struct timeval Tp;
712 int status;
6e3b076d 713 status = gettimeofday (&Tp, NULL);
dcf686c9 714 ret[0] = Tp.tv_sec;
715 ret[1] = Tp.tv_usec;
a2e20b18 716 return status;
dcf686c9 717}
718
3c72ec00 719static NV
dcf686c9 720myNVtime()
721{
0225372c 722#ifdef WIN32
4ed0e2d4 723 dTHX;
0225372c 724#endif
dcf686c9 725 struct timeval Tp;
726 int status;
6e3b076d 727 status = gettimeofday (&Tp, NULL);
47e797f6 728 return status == 0 ? Tp.tv_sec + (Tp.tv_usec / NV_1E6) : -1.0;
dcf686c9 729}
730
44d3ce20 731#endif /* #ifdef HAS_GETTIMEOFDAY */
dcf686c9 732
75d5269b 733static void
734hrstatns(UV atime, UV mtime, UV ctime, UV *atime_nsec, UV *mtime_nsec, UV *ctime_nsec)
735{
9e000d5b 736 dTHXR;
75d5269b 737 *atime_nsec = 0;
738 *mtime_nsec = 0;
739 *ctime_nsec = 0;
740#ifdef TIME_HIRES_STAT
741#if TIME_HIRES_STAT == 1
742 *atime_nsec = PL_statcache.st_atimespec.tv_nsec;
743 *mtime_nsec = PL_statcache.st_mtimespec.tv_nsec;
744 *ctime_nsec = PL_statcache.st_ctimespec.tv_nsec;
745#endif
746#if TIME_HIRES_STAT == 2
747 *atime_nsec = PL_statcache.st_atimensec;
748 *mtime_nsec = PL_statcache.st_mtimensec;
749 *ctime_nsec = PL_statcache.st_ctimensec;
750#endif
751#if TIME_HIRES_STAT == 3
752 *atime_nsec = PL_statcache.st_atime_n;
753 *mtime_nsec = PL_statcache.st_mtime_n;
754 *ctime_nsec = PL_statcache.st_ctime_n;
755#endif
756#if TIME_HIRES_STAT == 4
757 *atime_nsec = PL_statcache.st_atim.tv_nsec;
758 *mtime_nsec = PL_statcache.st_mtim.tv_nsec;
759 *ctime_nsec = PL_statcache.st_ctim.tv_nsec;
760#endif
761#if TIME_HIRES_STAT == 5
762 *atime_nsec = PL_statcache.st_uatime * 1000;
763 *mtime_nsec = PL_statcache.st_umtime * 1000;
764 *ctime_nsec = PL_statcache.st_uctime * 1000;
765#endif
766#endif
767}
768
82cbdcc3 769#include "const-c.inc"
770
dcf686c9 771MODULE = Time::HiRes PACKAGE = Time::HiRes
772
773PROTOTYPES: ENABLE
774
775BOOT:
0225372c 776{
777#ifdef MY_CXT_KEY
778 MY_CXT_INIT;
779#endif
3f2ee006 780#ifdef ATLEASTFIVEOHOHFIVE
9e000d5b 781# ifdef HAS_GETTIMEOFDAY
0225372c 782 {
0225372c 783 hv_store(PL_modglobal, "Time::NVtime", 12, newSViv(PTR2IV(myNVtime)), 0);
06252d99 784 hv_store(PL_modglobal, "Time::U2time", 12, newSViv(PTR2IV(myU2time)), 0);
0225372c 785 }
9e000d5b 786# endif
dcf686c9 787#endif
0225372c 788}
789
790#if defined(USE_ITHREADS) && defined(MY_CXT_KEY)
791
792void
793CLONE(...)
794 CODE:
795 MY_CXT_CLONE;
796
3f2ee006 797#endif
dcf686c9 798
98b50af3 799INCLUDE: const-xs.inc
3c72ec00 800
52d72fba 801#if defined(HAS_USLEEP) && defined(HAS_GETTIMEOFDAY)
dcf686c9 802
92bc48ca 803NV
dcf686c9 804usleep(useconds)
92bc48ca 805 NV useconds
52d72fba 806 PREINIT:
807 struct timeval Ta, Tb;
808 CODE:
6e3b076d 809 gettimeofday(&Ta, NULL);
52d72fba 810 if (items > 0) {
92bc48ca 811 if (useconds > 1E6) {
812 IV seconds = (IV) (useconds / 1E6);
f7916ddb 813 /* If usleep() has been implemented using setitimer()
814 * then this contortion is unnecessary-- but usleep()
815 * may be implemented in some other way, so let's contort. */
816 if (seconds) {
817 sleep(seconds);
818 useconds -= 1E6 * seconds;
819 }
820 } else if (useconds < 0.0)
821 croak("Time::HiRes::usleep(%"NVgf"): negative time not invented yet", useconds);
9a2ac92c 822 usleep((U32)useconds);
52d72fba 823 } else
824 PerlProc_pause();
6e3b076d 825 gettimeofday(&Tb, NULL);
92bc48ca 826#if 0
827 printf("[%ld %ld] [%ld %ld]\n", Tb.tv_sec, Tb.tv_usec, Ta.tv_sec, Ta.tv_usec);
828#endif
829 RETVAL = 1E6*(Tb.tv_sec-Ta.tv_sec)+(NV)((IV)Tb.tv_usec-(IV)Ta.tv_usec);
dcf686c9 830
52d72fba 831 OUTPUT:
832 RETVAL
833
44d3ce20 834#if defined(TIME_HIRES_NANOSLEEP)
835
836NV
170c5524 837nanosleep(nsec)
838 NV nsec
44d3ce20 839 PREINIT:
a8fb48f7 840 struct timespec sleepfor, unslept;
44d3ce20 841 CODE:
a8fb48f7 842 if (nsec < 0.0)
843 croak("Time::HiRes::nanosleep(%"NVgf"): negative time not invented yet", nsec);
22149ad2 844 sleepfor.tv_sec = (Time_t)(nsec / 1e9);
845 sleepfor.tv_nsec = (long)(nsec - ((NV)sleepfor.tv_sec) * 1e9);
a8fb48f7 846 if (!nanosleep(&sleepfor, &unslept)) {
847 RETVAL = nsec;
170c5524 848 } else {
a8fb48f7 849 sleepfor.tv_sec -= unslept.tv_sec;
850 sleepfor.tv_nsec -= unslept.tv_nsec;
851 if (sleepfor.tv_nsec < 0) {
852 sleepfor.tv_sec--;
853 sleepfor.tv_nsec += 1000000000;
854 }
855 RETVAL = ((NV)sleepfor.tv_sec) * 1e9 + ((NV)sleepfor.tv_nsec);
170c5524 856 }
a8fb48f7 857 OUTPUT:
44d3ce20 858 RETVAL
859
ced84e60 860#else /* #if defined(TIME_HIRES_NANOSLEEP) */
861
862NV
170c5524 863nanosleep(nsec)
864 NV nsec
ced84e60 865 CODE:
866 croak("Time::HiRes::nanosleep(): unimplemented in this platform");
867 RETVAL = 0.0;
868
44d3ce20 869#endif /* #if defined(TIME_HIRES_NANOSLEEP) */
870
52d72fba 871NV
f9d00e57 872sleep(...)
52d72fba 873 PREINIT:
874 struct timeval Ta, Tb;
dcf686c9 875 CODE:
6e3b076d 876 gettimeofday(&Ta, NULL);
92bc48ca 877 if (items > 0) {
878 NV seconds = SvNV(ST(0));
f7916ddb 879 if (seconds >= 0.0) {
7c436af3 880 UV useconds = (UV)(1E6 * (seconds - (UV)seconds));
4880edd6 881 if (seconds >= 1.0)
9a2ac92c 882 sleep((U32)seconds);
db0b859f 883 if ((IV)useconds < 0) {
884#if defined(__sparc64__) && defined(__GNUC__)
885 /* Sparc64 gcc 2.95.3 (e.g. on NetBSD) has a bug
886 * where (0.5 - (UV)(0.5)) will under certain
887 * circumstances (if the double is cast to UV more
888 * than once?) evaluate to -0.5, instead of 0.5. */
889 useconds = -(IV)useconds;
44d3ce20 890#endif /* #if defined(__sparc64__) && defined(__GNUC__) */
db0b859f 891 if ((IV)useconds < 0)
892 croak("Time::HiRes::sleep(%"NVgf"): internal error: useconds < 0 (unsigned %"UVuf" signed %"IVdf")", seconds, useconds, (IV)useconds);
893 }
f7916ddb 894 usleep(useconds);
895 } else
896 croak("Time::HiRes::sleep(%"NVgf"): negative time not invented yet", seconds);
92bc48ca 897 } else
f9d00e57 898 PerlProc_pause();
6e3b076d 899 gettimeofday(&Tb, NULL);
92bc48ca 900#if 0
901 printf("[%ld %ld] [%ld %ld]\n", Tb.tv_sec, Tb.tv_usec, Ta.tv_sec, Ta.tv_usec);
902#endif
52d72fba 903 RETVAL = (NV)(Tb.tv_sec-Ta.tv_sec)+0.000001*(NV)(Tb.tv_usec-Ta.tv_usec);
904
905 OUTPUT:
906 RETVAL
dcf686c9 907
ced84e60 908#else /* #if defined(HAS_USLEEP) && defined(HAS_GETTIMEOFDAY) */
909
910NV
911usleep(useconds)
912 NV useconds
913 CODE:
914 croak("Time::HiRes::usleep(): unimplemented in this platform");
915 RETVAL = 0.0;
916
44d3ce20 917#endif /* #if defined(HAS_USLEEP) && defined(HAS_GETTIMEOFDAY) */
dcf686c9 918
919#ifdef HAS_UALARM
920
bf8300de 921IV
922ualarm(useconds,uinterval=0)
dcf686c9 923 int useconds
bf8300de 924 int uinterval
f7916ddb 925 CODE:
bf8300de 926 if (useconds < 0 || uinterval < 0)
927 croak("Time::HiRes::ualarm(%d, %d): negative time not invented yet", useconds, uinterval);
928 if (useconds >= IV_1E6 || uinterval >= IV_1E6)
34f69483 929#if defined(HAS_SETITIMER) && defined(ITIMER_REAL)
bf8300de 930 {
931 struct itimerval itv;
932 if (hrt_ualarm_itimero(&itv, useconds, uinterval)) {
933 RETVAL = itv.it_value.tv_sec + IV_1E6 * itv.it_value.tv_usec;
934 } else {
935 RETVAL = 0;
936 }
937 }
34f69483 938#else
bf8300de 939 croak("Time::HiRes::ualarm(%d, %d): useconds or uinterval equal to or more than %"IVdf, useconds, uinterval, IV_1E6);
34f69483 940#endif
941 else
bf8300de 942 RETVAL = ualarm(useconds, uinterval);
dcf686c9 943
f7916ddb 944 OUTPUT:
945 RETVAL
946
947NV
948alarm(seconds,interval=0)
949 NV seconds
950 NV interval
dcf686c9 951 CODE:
f7916ddb 952 if (seconds < 0.0 || interval < 0.0)
953 croak("Time::HiRes::alarm(%"NVgf", %"NVgf"): negative time not invented yet", seconds, interval);
bf8300de 954 {
955 IV useconds = IV_1E6 * seconds;
956 IV uinterval = IV_1E6 * interval;
957 if (seconds >= IV_1E6 || interval >= IV_1E6)
958#if defined(HAS_SETITIMER) && defined(ITIMER_REAL)
959 {
960 struct itimerval itv;
961 if (hrt_ualarm_itimero(&itv, useconds, uinterval)) {
962 RETVAL = (NV)itv.it_value.tv_sec + (NV)itv.it_value.tv_usec / NV_1E6;
963 } else {
964 RETVAL = 0;
965 }
966 }
967#else
968 RETVAL = (NV)ualarm((IV)(seconds * IV_1E6),
969 (IV)(interval * IV_1E6)) / NV_1E6;
970#endif
971 }
dcf686c9 972
c6c619a9 973 OUTPUT:
974 RETVAL
975
ced84e60 976#else
977
978int
979ualarm(useconds,interval=0)
980 int useconds
981 int interval
982 CODE:
983 croak("Time::HiRes::ualarm(): unimplemented in this platform");
984 RETVAL = -1;
985
986NV
987alarm(seconds,interval=0)
988 NV seconds
989 NV interval
990 CODE:
991 croak("Time::HiRes::alarm(): unimplemented in this platform");
992 RETVAL = 0.0;
993
44d3ce20 994#endif /* #ifdef HAS_UALARM */
dcf686c9 995
996#ifdef HAS_GETTIMEOFDAY
db835671 997# ifdef MACOS_TRADITIONAL /* fix epoch TZ and use unsigned time_t */
998void
999gettimeofday()
1000 PREINIT:
1001 struct timeval Tp;
1002 struct timezone Tz;
1003 PPCODE:
1004 int status;
6e3b076d 1005 status = gettimeofday (&Tp, &Tz);
db835671 1006
993164ab 1007 if (status == 0) {
1008 Tp.tv_sec += Tz.tz_minuteswest * 60; /* adjust for TZ */
1009 if (GIMME == G_ARRAY) {
1010 EXTEND(sp, 2);
1011 /* Mac OS (Classic) has unsigned time_t */
1012 PUSHs(sv_2mortal(newSVuv(Tp.tv_sec)));
1013 PUSHs(sv_2mortal(newSViv(Tp.tv_usec)));
1014 } else {
1015 EXTEND(sp, 1);
47e797f6 1016 PUSHs(sv_2mortal(newSVnv(Tp.tv_sec + (Tp.tv_usec / NV_1E6))));
993164ab 1017 }
db835671 1018 }
1019
1020NV
1021time()
1022 PREINIT:
1023 struct timeval Tp;
1024 struct timezone Tz;
1025 CODE:
1026 int status;
6e3b076d 1027 status = gettimeofday (&Tp, &Tz);
993164ab 1028 if (status == 0) {
1029 Tp.tv_sec += Tz.tz_minuteswest * 60; /* adjust for TZ */
47e797f6 1030 RETVAL = Tp.tv_sec + (Tp.tv_usec / NV_1E6);
993164ab 1031 } else {
1032 RETVAL = -1.0;
1033 }
db835671 1034 OUTPUT:
1035 RETVAL
dcf686c9 1036
db835671 1037# else /* MACOS_TRADITIONAL */
dcf686c9 1038void
1039gettimeofday()
1040 PREINIT:
1041 struct timeval Tp;
1042 PPCODE:
1043 int status;
6e3b076d 1044 status = gettimeofday (&Tp, NULL);
993164ab 1045 if (status == 0) {
1046 if (GIMME == G_ARRAY) {
1047 EXTEND(sp, 2);
1048 PUSHs(sv_2mortal(newSViv(Tp.tv_sec)));
1049 PUSHs(sv_2mortal(newSViv(Tp.tv_usec)));
1050 } else {
1051 EXTEND(sp, 1);
47e797f6 1052 PUSHs(sv_2mortal(newSVnv(Tp.tv_sec + (Tp.tv_usec / NV_1E6))));
993164ab 1053 }
dcf686c9 1054 }
1055
3c72ec00 1056NV
dcf686c9 1057time()
1058 PREINIT:
1059 struct timeval Tp;
1060 CODE:
1061 int status;
6e3b076d 1062 status = gettimeofday (&Tp, NULL);
993164ab 1063 if (status == 0) {
47e797f6 1064 RETVAL = Tp.tv_sec + (Tp.tv_usec / NV_1E6);
993164ab 1065 } else {
1066 RETVAL = -1.0;
1067 }
dcf686c9 1068 OUTPUT:
1069 RETVAL
1070
db835671 1071# endif /* MACOS_TRADITIONAL */
44d3ce20 1072#endif /* #ifdef HAS_GETTIMEOFDAY */
dcf686c9 1073
3c72ec00 1074#if defined(HAS_GETITIMER) && defined(HAS_SETITIMER)
1075
1076#define TV2NV(tv) ((NV)((tv).tv_sec) + 0.000001 * (NV)((tv).tv_usec))
1077
1078void
1079setitimer(which, seconds, interval = 0)
1080 int which
1081 NV seconds
1082 NV interval
1083 PREINIT:
1084 struct itimerval newit;
1085 struct itimerval oldit;
1086 PPCODE:
f7916ddb 1087 if (seconds < 0.0 || interval < 0.0)
436c6dd3 1088 croak("Time::HiRes::setitimer(%"IVdf", %"NVgf", %"NVgf"): negative time not invented yet", (IV)which, seconds, interval);
47e797f6 1089 newit.it_value.tv_sec = (IV)seconds;
3c72ec00 1090 newit.it_value.tv_usec =
47e797f6 1091 (IV)((seconds - (NV)newit.it_value.tv_sec) * NV_1E6);
1092 newit.it_interval.tv_sec = (IV)interval;
3c72ec00 1093 newit.it_interval.tv_usec =
47e797f6 1094 (IV)((interval - (NV)newit.it_interval.tv_sec) * NV_1E6);
3c72ec00 1095 if (setitimer(which, &newit, &oldit) == 0) {
1096 EXTEND(sp, 1);
1097 PUSHs(sv_2mortal(newSVnv(TV2NV(oldit.it_value))));
1098 if (GIMME == G_ARRAY) {
1099 EXTEND(sp, 1);
1100 PUSHs(sv_2mortal(newSVnv(TV2NV(oldit.it_interval))));
1101 }
1102 }
1103
1104void
1105getitimer(which)
1106 int which
1107 PREINIT:
1108 struct itimerval nowit;
1109 PPCODE:
1110 if (getitimer(which, &nowit) == 0) {
1111 EXTEND(sp, 1);
1112 PUSHs(sv_2mortal(newSVnv(TV2NV(nowit.it_value))));
1113 if (GIMME == G_ARRAY) {
1114 EXTEND(sp, 1);
1115 PUSHs(sv_2mortal(newSVnv(TV2NV(nowit.it_interval))));
1116 }
1117 }
1118
44d3ce20 1119#endif /* #if defined(HAS_GETITIMER) && defined(HAS_SETITIMER) */
1120
ced84e60 1121#if defined(TIME_HIRES_CLOCK_GETTIME)
1122
1123NV
1124clock_gettime(clock_id = CLOCK_REALTIME)
1125 int clock_id
1126 PREINIT:
1127 struct timespec ts;
1128 int status = -1;
1129 CODE:
1130#ifdef TIME_HIRES_CLOCK_GETTIME_SYSCALL
1131 status = syscall(SYS_clock_gettime, clock_id, &ts);
1132#else
1133 status = clock_gettime(clock_id, &ts);
1134#endif
1135 RETVAL = status == 0 ? ts.tv_sec + (NV) ts.tv_nsec / (NV) 1e9 : -1;
1136
1137 OUTPUT:
1138 RETVAL
1139
1140#else /* if defined(TIME_HIRES_CLOCK_GETTIME) */
1141
1142NV
1143clock_gettime(clock_id = 0)
1144 int clock_id
1145 CODE:
1146 croak("Time::HiRes::clock_gettime(): unimplemented in this platform");
1147 RETVAL = 0.0;
1148
1149#endif /* #if defined(TIME_HIRES_CLOCK_GETTIME) */
1150
1151#if defined(TIME_HIRES_CLOCK_GETRES)
1152
1153NV
1154clock_getres(clock_id = CLOCK_REALTIME)
1155 int clock_id
1156 PREINIT:
1157 int status = -1;
1158 struct timespec ts;
1159 CODE:
1160#ifdef TIME_HIRES_CLOCK_GETRES_SYSCALL
1161 status = syscall(SYS_clock_getres, clock_id, &ts);
1162#else
1163 status = clock_getres(clock_id, &ts);
1164#endif
1165 RETVAL = status == 0 ? ts.tv_sec + (NV) ts.tv_nsec / (NV) 1e9 : -1;
1166
1167 OUTPUT:
1168 RETVAL
1169
1170#else /* if defined(TIME_HIRES_CLOCK_GETRES) */
1171
1172NV
1173clock_getres(clock_id = 0)
1174 int clock_id
1175 CODE:
1176 croak("Time::HiRes::clock_getres(): unimplemented in this platform");
1177 RETVAL = 0.0;
1178
1179#endif /* #if defined(TIME_HIRES_CLOCK_GETRES) */
1180
170c5524 1181#if defined(TIME_HIRES_CLOCK_NANOSLEEP) && defined(TIMER_ABSTIME)
1182
1183NV
a8fb48f7 1184clock_nanosleep(clock_id, nsec, flags = 0)
170c5524 1185 int clock_id
a8fb48f7 1186 NV nsec
170c5524 1187 int flags
1188 PREINIT:
a8fb48f7 1189 struct timespec sleepfor, unslept;
170c5524 1190 CODE:
a8fb48f7 1191 if (nsec < 0.0)
1192 croak("Time::HiRes::clock_nanosleep(..., %"NVgf"): negative time not invented yet", nsec);
22149ad2 1193 sleepfor.tv_sec = (Time_t)(nsec / 1e9);
1194 sleepfor.tv_nsec = (long)(nsec - ((NV)sleepfor.tv_sec) * 1e9);
a8fb48f7 1195 if (!clock_nanosleep(clock_id, flags, &sleepfor, &unslept)) {
1196 RETVAL = nsec;
170c5524 1197 } else {
a8fb48f7 1198 sleepfor.tv_sec -= unslept.tv_sec;
1199 sleepfor.tv_nsec -= unslept.tv_nsec;
1200 if (sleepfor.tv_nsec < 0) {
1201 sleepfor.tv_sec--;
1202 sleepfor.tv_nsec += 1000000000;
1203 }
1204 RETVAL = ((NV)sleepfor.tv_sec) * 1e9 + ((NV)sleepfor.tv_nsec);
170c5524 1205 }
170c5524 1206 OUTPUT:
1207 RETVAL
1208
1209#else /* if defined(TIME_HIRES_CLOCK_NANOSLEEP) && defined(TIMER_ABSTIME) */
1210
1211NV
1212clock_nanosleep()
1213 CODE:
1214 croak("Time::HiRes::clock_nanosleep(): unimplemented in this platform");
1215 RETVAL = 0.0;
1216
1217#endif /* #if defined(TIME_HIRES_CLOCK_NANOSLEEP) && defined(TIMER_ABSTIME) */
1218
1219#if defined(TIME_HIRES_CLOCK) && defined(CLOCKS_PER_SEC)
1220
1221NV
1222clock()
1223 PREINIT:
1224 clock_t clocks;
1225 CODE:
1226 clocks = clock();
1227 RETVAL = clocks == -1 ? -1 : (NV)clocks / (NV)CLOCKS_PER_SEC;
1228
1229 OUTPUT:
1230 RETVAL
1231
1232#else /* if defined(TIME_HIRES_CLOCK) && defined(CLOCKS_PER_SEC) */
1233
1234NV
1235clock()
1236 CODE:
1237 croak("Time::HiRes::clock(): unimplemented in this platform");
1238 RETVAL = 0.0;
1239
1240#endif /* #if defined(TIME_HIRES_CLOCK) && defined(CLOCKS_PER_SEC) */
1241
86413ec0 1242void
75d5269b 1243stat(...)
1244PROTOTYPE: ;$
1245 PPCODE:
1246 PUSHMARK(SP);
1247 XPUSHs(sv_2mortal(newSVsv(items == 1 ? ST(0) : DEFSV)));
1248 PUTBACK;
1249 ENTER;
1250 PL_laststatval = -1;
9e000d5b 1251 (void)*(PL_ppaddr[OP_STAT])(aTHXR);
75d5269b 1252 SPAGAIN;
1253 LEAVE;
1254 if (PL_laststatval == 0) {
71ac5476 1255 /* We assume that pp_stat() left us with 13 valid stack items,
1256 * and that the timestamps are at offsets 8, 9, and 10. */
75d5269b 1257 UV atime = SvUV(ST( 8));
1258 UV mtime = SvUV(ST( 9));
1259 UV ctime = SvUV(ST(10));
1260 UV atime_nsec;
1261 UV mtime_nsec;
1262 UV ctime_nsec;
1263 hrstatns(atime, mtime, ctime,
1264 &atime_nsec, &mtime_nsec, &ctime_nsec);
1265 if (atime_nsec)
1266 ST( 8) = sv_2mortal(newSVnv(atime + 1e-9 * (NV) atime_nsec));
1267 if (mtime_nsec)
1268 ST( 9) = sv_2mortal(newSVnv(mtime + 1e-9 * (NV) mtime_nsec));
1269 if (ctime_nsec)
1270 ST(10) = sv_2mortal(newSVnv(ctime + 1e-9 * (NV) ctime_nsec));
1271 XSRETURN(13);
1272 }
1273 XSRETURN(0);
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