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Fix long standing memory leak with pop and shift!
[p5sagit/p5-mst-13.2.git] / ext / Time / HiRes / HiRes.xs
CommitLineData
dcf686c9 1#ifdef __cplusplus
2extern "C" {
3#endif
4#include "EXTERN.h"
5#include "perl.h"
6#include "XSUB.h"
7#ifdef WIN32
8#include <time.h>
9#else
10#include <sys/time.h>
11#endif
36df99d6 12#ifdef HAS_SELECT
13# ifdef I_SYS_SELECT
14# include <sys/select.h>
15# endif
16#endif
dcf686c9 17#ifdef __cplusplus
18}
19#endif
20
3f2ee006 21#ifndef aTHX_
22# define aTHX_
23# define pTHX_
24#endif
25
26#ifndef NVTYPE
27# if defined(USE_LONG_DOUBLE) && defined(HAS_LONG_DOUBLE)
28# define NVTYPE long double
29# else
30# define NVTYPE double
31# endif
32typedef NVTYPE NV;
33#endif
34
35#ifndef IVdf
36# ifdef IVSIZE
37# if IVSIZE == LONGSIZE
38# define IVdf "ld"
39# else
40# if IVSIZE == INTSIZE
41# define IVdf "d"
42# endif
43# endif
44# else
45# define IVdf "ld"
46# endif
47#endif
48
49#ifndef NVef
50# if defined(USE_LONG_DOUBLE) && defined(HAS_LONG_DOUBLE) && \
51 defined(PERL_PRIgldbl) /* Not very likely, but let's try anyway. */
52# define NVgf PERL_PRIgldbl
53# else
54# define NVgf "g"
55# endif
56#endif
57
58#ifndef INT2PTR
59
60#if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE)
61# define PTRV UV
62# define INT2PTR(any,d) (any)(d)
63#else
64# if PTRSIZE == LONGSIZE
65# define PTRV unsigned long
66# else
67# define PTRV unsigned
68# endif
69# define INT2PTR(any,d) (any)(PTRV)(d)
70#endif
71#define PTR2IV(p) INT2PTR(IV,p)
72
73#endif /* !INT2PTR */
74
75#ifndef SvPV_nolen
76static char *
77sv_2pv_nolen(pTHX_ register SV *sv)
78{
79 STRLEN n_a;
80 return sv_2pv(sv, &n_a);
81}
82# define SvPV_nolen(sv) \
83 ((SvFLAGS(sv) & (SVf_POK)) == SVf_POK \
84 ? SvPVX(sv) : sv_2pv_nolen(sv))
85#endif
86
87#ifndef PerlProc_pause
88# define PerlProc_pause() Pause()
89#endif
90
91/* Though the cpp define ITIMER_VIRTUAL is available the functionality
92 * is not supported in Cygwin as of August 2002, ditto for Win32.
93 * Neither are ITIMER_PROF or ITIMER_REALPROF implemented. --jhi
94 */
95#if defined(__CYGWIN__) || defined(WIN32)
96# undef ITIMER_VIRTUAL
97# undef ITIMER_PROF
98# undef ITIMER_REALPROF
99#endif
100
3c72ec00 101static IV
102constant(char *name, int arg)
103{
104 errno = 0;
105 switch (*name) {
3f2ee006 106 case 'd':
107 if (strEQ(name, "d_getitimer"))
108#ifdef HAS_GETITIMER
109 return 1;
110#else
111 return 0;
112#endif
113 if (strEQ(name, "d_nanosleep"))
114#ifdef HAS_NANOSLEEP
115 return 1;
116#else
117 return 0;
118#endif
119 if (strEQ(name, "d_setitimer"))
120#ifdef HAS_SETITIMER
121 return 1;
122#else
123 return 0;
124#endif
125 if (strEQ(name, "d_ualarm"))
126#ifdef HAS_UALARM
127 return 1;
128#else
129 return 0;
130#endif
131 if (strEQ(name, "d_usleep"))
132#ifdef HAS_USLEEP
133 return 1;
134#else
135 return 0;
136#endif
137 break;
3c72ec00 138 case 'I':
139 if (strEQ(name, "ITIMER_REAL"))
140#ifdef ITIMER_REAL
141 return ITIMER_REAL;
142#else
143 goto not_there;
144#endif
145 if (strEQ(name, "ITIMER_REALPROF"))
146#ifdef ITIMER_REALPROF
147 return ITIMER_REALPROF;
148#else
149 goto not_there;
150#endif
151 if (strEQ(name, "ITIMER_VIRTUAL"))
152#ifdef ITIMER_VIRTUAL
153 return ITIMER_VIRTUAL;
154#else
155 goto not_there;
156#endif
157 if (strEQ(name, "ITIMER_PROF"))
158#ifdef ITIMER_PROF
159 return ITIMER_PROF;
160#else
161 goto not_there;
162#endif
163 break;
164 }
165 errno = EINVAL;
166 return 0;
167
168not_there:
169 errno = ENOENT;
170 return 0;
171}
172
fd44fdfd 173#if !defined(HAS_GETTIMEOFDAY) && defined(WIN32)
174#define HAS_GETTIMEOFDAY
175
6e3b076d 176/* shows up in winsock.h?
177struct timeval {
178 long tv_sec;
179 long tv_usec;
180}
181*/
182
fd44fdfd 183typedef union {
184 unsigned __int64 ft_i64;
185 FILETIME ft_val;
186} FT_t;
187
6e3b076d 188/* Number of 100 nanosecond units from 1/1/1601 to 1/1/1970 */
fd44fdfd 189#ifdef __GNUC__
190#define Const64(x) x##LL
191#else
192#define Const64(x) x##i64
193#endif
fd44fdfd 194#define EPOCH_BIAS Const64(116444736000000000)
195
196/* NOTE: This does not compute the timezone info (doing so can be expensive,
197 * and appears to be unsupported even by glibc) */
6e3b076d 198int
199gettimeofday (struct timeval *tp, void *not_used)
fd44fdfd 200{
201 FT_t ft;
202
203 /* this returns time in 100-nanosecond units (i.e. tens of usecs) */
204 GetSystemTimeAsFileTime(&ft.ft_val);
205
206 /* seconds since epoch */
207 tp->tv_sec = (long)((ft.ft_i64 - EPOCH_BIAS) / Const64(10000000));
208
209 /* microseconds remaining */
210 tp->tv_usec = (long)((ft.ft_i64 / Const64(10)) % Const64(1000000));
211
212 return 0;
213}
6e3b076d 214#endif
fd44fdfd 215
dcf686c9 216#if !defined(HAS_GETTIMEOFDAY) && defined(VMS)
217#define HAS_GETTIMEOFDAY
218
9b6f56ad 219#include <lnmdef.h>
dcf686c9 220#include <time.h> /* gettimeofday */
221#include <stdlib.h> /* qdiv */
222#include <starlet.h> /* sys$gettim */
223#include <descrip.h>
3785778e 224#ifdef __VAX
225#include <lib$routines.h> /* lib$ediv() */
226#endif
dcf686c9 227
228/*
229 VMS binary time is expressed in 100 nano-seconds since
230 system base time which is 17-NOV-1858 00:00:00.00
231*/
232
233#define DIV_100NS_TO_SECS 10000000L
234#define DIV_100NS_TO_USECS 10L
235
236/*
237 gettimeofday is supposed to return times since the epoch
238 so need to determine this in terms of VMS base time
239*/
240static $DESCRIPTOR(dscepoch,"01-JAN-1970 00:00:00.00");
241
5cdb7193 242#ifdef __VAX
3785778e 243static long base_adjust[2]={0L,0L};
5cdb7193 244#else
dcf686c9 245static __int64 base_adjust=0;
5cdb7193 246#endif
dcf686c9 247
9b6f56ad 248/*
249
250 If we don't have gettimeofday, then likely we are on a VMS machine that
251 operates on local time rather than UTC...so we have to zone-adjust.
252 This code gleefully swiped from VMS.C
253
254*/
255/* method used to handle UTC conversions:
256 * 1 == CRTL gmtime(); 2 == SYS$TIMEZONE_DIFFERENTIAL; 3 == no correction
257 */
258static int gmtime_emulation_type;
259/* number of secs to add to UTC POSIX-style time to get local time */
260static long int utc_offset_secs;
261static struct dsc$descriptor_s fildevdsc =
262 { 12, DSC$K_DTYPE_T, DSC$K_CLASS_S, "LNM$FILE_DEV" };
263static struct dsc$descriptor_s *fildev[] = { &fildevdsc, NULL };
264
265static time_t toutc_dst(time_t loc) {
266 struct tm *rsltmp;
267
268 if ((rsltmp = localtime(&loc)) == NULL) return -1;
269 loc -= utc_offset_secs;
270 if (rsltmp->tm_isdst) loc -= 3600;
271 return loc;
272}
273
274static time_t toloc_dst(time_t utc) {
275 struct tm *rsltmp;
276
277 utc += utc_offset_secs;
278 if ((rsltmp = localtime(&utc)) == NULL) return -1;
279 if (rsltmp->tm_isdst) utc += 3600;
280 return utc;
281}
282
283#define _toutc(secs) ((secs) == (time_t) -1 ? (time_t) -1 : \
284 ((gmtime_emulation_type || timezone_setup()), \
285 (gmtime_emulation_type == 1 ? toutc_dst(secs) : \
286 ((secs) - utc_offset_secs))))
287
288#define _toloc(secs) ((secs) == (time_t) -1 ? (time_t) -1 : \
289 ((gmtime_emulation_type || timezone_setup()), \
290 (gmtime_emulation_type == 1 ? toloc_dst(secs) : \
291 ((secs) + utc_offset_secs))))
292
293static int
294timezone_setup(void)
295{
296 struct tm *tm_p;
297
298 if (gmtime_emulation_type == 0) {
299 int dstnow;
300 time_t base = 15 * 86400; /* 15jan71; to avoid month/year ends between */
301 /* results of calls to gmtime() and localtime() */
302 /* for same &base */
303
304 gmtime_emulation_type++;
305 if ((tm_p = gmtime(&base)) == NULL) { /* CRTL gmtime() is a fake */
306 char off[LNM$C_NAMLENGTH+1];;
307
308 gmtime_emulation_type++;
309 if (!Perl_vmstrnenv("SYS$TIMEZONE_DIFFERENTIAL",off,0,fildev,0)) {
310 gmtime_emulation_type++;
311 utc_offset_secs = 0;
312 Perl_warn(aTHX_ "no UTC offset information; assuming local time is UTC");
313 }
314 else { utc_offset_secs = atol(off); }
315 }
316 else { /* We've got a working gmtime() */
317 struct tm gmt, local;
318
319 gmt = *tm_p;
320 tm_p = localtime(&base);
321 local = *tm_p;
322 utc_offset_secs = (local.tm_mday - gmt.tm_mday) * 86400;
323 utc_offset_secs += (local.tm_hour - gmt.tm_hour) * 3600;
324 utc_offset_secs += (local.tm_min - gmt.tm_min) * 60;
325 utc_offset_secs += (local.tm_sec - gmt.tm_sec);
326 }
327 }
328 return 1;
329}
330
331
dcf686c9 332int
333gettimeofday (struct timeval *tp, void *tpz)
334{
335 long ret;
5cdb7193 336#ifdef __VAX
3785778e 337 long quad[2];
338 long quad1[2];
339 long div_100ns_to_secs;
340 long div_100ns_to_usecs;
341 long quo,rem;
342 long quo1,rem1;
5cdb7193 343#else
dcf686c9 344 __int64 quad;
345 __qdiv_t ans1,ans2;
5cdb7193 346#endif
dcf686c9 347/*
348 In case of error, tv_usec = 0 and tv_sec = VMS condition code.
349 The return from function is also set to -1.
350 This is not exactly as per the manual page.
351*/
352
353 tp->tv_usec = 0;
354
3785778e 355#ifdef __VAX
356 if (base_adjust[0]==0 && base_adjust[1]==0) {
357#else
dcf686c9 358 if (base_adjust==0) { /* Need to determine epoch adjustment */
3785778e 359#endif
dcf686c9 360 ret=sys$bintim(&dscepoch,&base_adjust);
361 if (1 != (ret &&1)) {
362 tp->tv_sec = ret;
363 return -1;
364 }
365 }
366
367 ret=sys$gettim(&quad); /* Get VMS system time */
368 if ((1 && ret) == 1) {
5cdb7193 369#ifdef __VAX
3785778e 370 quad[0] -= base_adjust[0]; /* convert to epoch offset */
371 quad[1] -= base_adjust[1]; /* convert 2nd half of quadword */
372 div_100ns_to_secs = DIV_100NS_TO_SECS;
373 div_100ns_to_usecs = DIV_100NS_TO_USECS;
374 lib$ediv(&div_100ns_to_secs,&quad,&quo,&rem);
375 quad1[0] = rem;
376 quad1[1] = 0L;
377 lib$ediv(&div_100ns_to_usecs,&quad1,&quo1,&rem1);
378 tp->tv_sec = quo; /* Whole seconds */
379 tp->tv_usec = quo1; /* Micro-seconds */
5cdb7193 380#else
3785778e 381 quad -= base_adjust; /* convert to epoch offset */
dcf686c9 382 ans1=qdiv(quad,DIV_100NS_TO_SECS);
383 ans2=qdiv(ans1.rem,DIV_100NS_TO_USECS);
384 tp->tv_sec = ans1.quot; /* Whole seconds */
385 tp->tv_usec = ans2.quot; /* Micro-seconds */
3785778e 386#endif
dcf686c9 387 } else {
388 tp->tv_sec = ret;
389 return -1;
390 }
9b6f56ad 391# ifdef VMSISH_TIME
392# ifdef RTL_USES_UTC
393 if (VMSISH_TIME) tp->tv_sec = _toloc(tp->tv_sec);
394# else
395 if (!VMSISH_TIME) tp->tv_sec = _toutc(tp->tv_sec);
396# endif
397# endif
dcf686c9 398 return 0;
399}
400#endif
401
3f2ee006 402
403#if !defined(HAS_USLEEP) && defined(HAS_NANOSLEEP)
404#define HAS_USLEEP
405#define usleep hrt_nanosleep /* could conflict with ncurses for static build */
406
407void
408hrt_nanosleep(unsigned long usec)
409{
410 struct timespec res;
411 res.tv_sec = usec/1000/1000;
412 res.tv_nsec = ( usec - res.tv_sec*1000*1000 ) * 1000;
413 nanosleep(&res, NULL);
414}
415#endif
416
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
433#endif
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}
446#endif
447
448
449#if !defined(HAS_UALARM) && defined(HAS_SETITIMER)
450#define HAS_UALARM
451#define ualarm hrt_ualarm /* could conflict with ncurses for static build */
452
453int
454hrt_ualarm(int usec, int interval)
455{
456 struct itimerval itv;
457 itv.it_value.tv_sec = usec / 1000000;
458 itv.it_value.tv_usec = usec % 1000000;
459 itv.it_interval.tv_sec = interval / 1000000;
460 itv.it_interval.tv_usec = interval % 1000000;
461 return setitimer(ITIMER_REAL, &itv, 0);
462}
463#endif
464
ca40fe49 465#if !defined(HAS_UALARM) && defined(VMS)
466#define HAS_UALARM
467#define ualarm vms_ualarm
468
469#include <lib$routines.h>
470#include <ssdef.h>
471#include <starlet.h>
472#include <descrip.h>
473#include <signal.h>
474#include <jpidef.h>
475#include <psldef.h>
476
477#define VMSERR(s) (!((s)&1))
478
479static void
480us_to_VMS(useconds_t mseconds, unsigned long v[])
481{
482 int iss;
483 unsigned long qq[2];
484
485 qq[0] = mseconds;
486 qq[1] = 0;
487 v[0] = v[1] = 0;
488
489 iss = lib$addx(qq,qq,qq);
490 if (VMSERR(iss)) lib$signal(iss);
491 iss = lib$subx(v,qq,v);
492 if (VMSERR(iss)) lib$signal(iss);
493 iss = lib$addx(qq,qq,qq);
494 if (VMSERR(iss)) lib$signal(iss);
495 iss = lib$subx(v,qq,v);
496 if (VMSERR(iss)) lib$signal(iss);
497 iss = lib$subx(v,qq,v);
498 if (VMSERR(iss)) lib$signal(iss);
499}
500
501static int
502VMS_to_us(unsigned long v[])
503{
504 int iss;
505 unsigned long div=10,quot, rem;
506
507 iss = lib$ediv(&div,v,&quot,&rem);
508 if (VMSERR(iss)) lib$signal(iss);
509
510 return quot;
511}
512
513typedef unsigned short word;
514typedef struct _ualarm {
515 int function;
516 int repeat;
517 unsigned long delay[2];
518 unsigned long interval[2];
519 unsigned long remain[2];
520} Alarm;
521
522
523static int alarm_ef;
524static Alarm *a0, alarm_base;
525#define UAL_NULL 0
526#define UAL_SET 1
527#define UAL_CLEAR 2
528#define UAL_ACTIVE 4
529static void ualarm_AST(Alarm *a);
530
531static int
532vms_ualarm(int mseconds, int interval)
533{
534 Alarm *a, abase;
535 struct item_list3 {
536 word length;
537 word code;
538 void *bufaddr;
539 void *retlenaddr;
540 } ;
541 static struct item_list3 itmlst[2];
542 static int first = 1;
543 unsigned long asten;
544 int iss, enabled;
545
546 if (first) {
547 first = 0;
548 itmlst[0].code = JPI$_ASTEN;
549 itmlst[0].length = sizeof(asten);
550 itmlst[0].retlenaddr = NULL;
551 itmlst[1].code = 0;
552 itmlst[1].length = 0;
553 itmlst[1].bufaddr = NULL;
554 itmlst[1].retlenaddr = NULL;
555
556 iss = lib$get_ef(&alarm_ef);
557 if (VMSERR(iss)) lib$signal(iss);
558
559 a0 = &alarm_base;
560 a0->function = UAL_NULL;
561 }
562 itmlst[0].bufaddr = &asten;
563
564 iss = sys$getjpiw(0,0,0,itmlst,0,0,0);
565 if (VMSERR(iss)) lib$signal(iss);
566 if (!(asten&0x08)) return -1;
567
568 a = &abase;
569 if (mseconds) {
570 a->function = UAL_SET;
571 } else {
572 a->function = UAL_CLEAR;
573 }
574
575 us_to_VMS(mseconds, a->delay);
576 if (interval) {
577 us_to_VMS(interval, a->interval);
578 a->repeat = 1;
579 } else
580 a->repeat = 0;
581
582 iss = sys$clref(alarm_ef);
583 if (VMSERR(iss)) lib$signal(iss);
584
585 iss = sys$dclast(ualarm_AST,a,0);
586 if (VMSERR(iss)) lib$signal(iss);
587
588 iss = sys$waitfr(alarm_ef);
589 if (VMSERR(iss)) lib$signal(iss);
590
591 if (a->function == UAL_ACTIVE)
592 return VMS_to_us(a->remain);
593 else
594 return 0;
595}
596
597
598
599static void
600ualarm_AST(Alarm *a)
601{
602 int iss;
603 unsigned long now[2];
604
605 iss = sys$gettim(now);
606 if (VMSERR(iss)) lib$signal(iss);
607
608 if (a->function == UAL_SET || a->function == UAL_CLEAR) {
609 if (a0->function == UAL_ACTIVE) {
610 iss = sys$cantim(a0,PSL$C_USER);
611 if (VMSERR(iss)) lib$signal(iss);
612
613 iss = lib$subx(a0->remain, now, a->remain);
614 if (VMSERR(iss)) lib$signal(iss);
615
616 if (a->remain[1] & 0x80000000)
617 a->remain[0] = a->remain[1] = 0;
618 }
619
620 if (a->function == UAL_SET) {
621 a->function = a0->function;
622 a0->function = UAL_ACTIVE;
623 a0->repeat = a->repeat;
624 if (a0->repeat) {
625 a0->interval[0] = a->interval[0];
626 a0->interval[1] = a->interval[1];
627 }
628 a0->delay[0] = a->delay[0];
629 a0->delay[1] = a->delay[1];
630
631 iss = lib$subx(now, a0->delay, a0->remain);
632 if (VMSERR(iss)) lib$signal(iss);
633
634 iss = sys$setimr(0,a0->delay,ualarm_AST,a0);
635 if (VMSERR(iss)) lib$signal(iss);
636 } else {
637 a->function = a0->function;
638 a0->function = UAL_NULL;
639 }
640 iss = sys$setef(alarm_ef);
641 if (VMSERR(iss)) lib$signal(iss);
642 } else if (a->function == UAL_ACTIVE) {
643 if (a->repeat) {
644 iss = lib$subx(now, a->interval, a->remain);
645 if (VMSERR(iss)) lib$signal(iss);
646
647 iss = sys$setimr(0,a->interval,ualarm_AST,a);
648 if (VMSERR(iss)) lib$signal(iss);
649 } else {
650 a->function = UAL_NULL;
651 }
652 iss = sys$wake(0,0);
653 if (VMSERR(iss)) lib$signal(iss);
654 lib$signal(SS$_ASTFLT);
655 } else {
656 lib$signal(SS$_BADPARAM);
657 }
658}
659
660#endif /* !HAS_UALARM && VMS */
661
dcf686c9 662#ifdef HAS_GETTIMEOFDAY
663
a2e20b18 664static int
dcf686c9 665myU2time(UV *ret)
666{
667 struct timeval Tp;
668 int status;
6e3b076d 669 status = gettimeofday (&Tp, NULL);
dcf686c9 670 ret[0] = Tp.tv_sec;
671 ret[1] = Tp.tv_usec;
a2e20b18 672 return status;
dcf686c9 673}
674
3c72ec00 675static NV
dcf686c9 676myNVtime()
677{
678 struct timeval Tp;
679 int status;
6e3b076d 680 status = gettimeofday (&Tp, NULL);
a2e20b18 681 return status == 0 ? Tp.tv_sec + (Tp.tv_usec / 1000000.) : -1.0;
dcf686c9 682}
683
684#endif
685
686MODULE = Time::HiRes PACKAGE = Time::HiRes
687
688PROTOTYPES: ENABLE
689
690BOOT:
3f2ee006 691#ifdef ATLEASTFIVEOHOHFIVE
dcf686c9 692#ifdef HAS_GETTIMEOFDAY
a2e20b18 693{
694 UV auv[2];
cfb1f18c 695 hv_store(PL_modglobal, "Time::NVtime", 12, newSViv(PTR2IV(myNVtime)), 0);
a2e20b18 696 if (myU2time(auv) == 0)
697 hv_store(PL_modglobal, "Time::U2time", 12, newSViv((IV) auv[0]), 0);
698}
dcf686c9 699#endif
3f2ee006 700#endif
dcf686c9 701
3c72ec00 702IV
703constant(name, arg)
704 char * name
705 int arg
706
52d72fba 707#if defined(HAS_USLEEP) && defined(HAS_GETTIMEOFDAY)
dcf686c9 708
92bc48ca 709NV
dcf686c9 710usleep(useconds)
92bc48ca 711 NV useconds
52d72fba 712 PREINIT:
713 struct timeval Ta, Tb;
714 CODE:
6e3b076d 715 gettimeofday(&Ta, NULL);
52d72fba 716 if (items > 0) {
92bc48ca 717 if (useconds > 1E6) {
718 IV seconds = (IV) (useconds / 1E6);
f7916ddb 719 /* If usleep() has been implemented using setitimer()
720 * then this contortion is unnecessary-- but usleep()
721 * may be implemented in some other way, so let's contort. */
722 if (seconds) {
723 sleep(seconds);
724 useconds -= 1E6 * seconds;
725 }
726 } else if (useconds < 0.0)
727 croak("Time::HiRes::usleep(%"NVgf"): negative time not invented yet", useconds);
9a2ac92c 728 usleep((U32)useconds);
52d72fba 729 } else
730 PerlProc_pause();
6e3b076d 731 gettimeofday(&Tb, NULL);
92bc48ca 732#if 0
733 printf("[%ld %ld] [%ld %ld]\n", Tb.tv_sec, Tb.tv_usec, Ta.tv_sec, Ta.tv_usec);
734#endif
735 RETVAL = 1E6*(Tb.tv_sec-Ta.tv_sec)+(NV)((IV)Tb.tv_usec-(IV)Ta.tv_usec);
dcf686c9 736
52d72fba 737 OUTPUT:
738 RETVAL
739
740NV
f9d00e57 741sleep(...)
52d72fba 742 PREINIT:
743 struct timeval Ta, Tb;
dcf686c9 744 CODE:
6e3b076d 745 gettimeofday(&Ta, NULL);
92bc48ca 746 if (items > 0) {
747 NV seconds = SvNV(ST(0));
f7916ddb 748 if (seconds >= 0.0) {
7c436af3 749 UV useconds = (UV)(1E6 * (seconds - (UV)seconds));
4880edd6 750 if (seconds >= 1.0)
9a2ac92c 751 sleep((U32)seconds);
f7916ddb 752 usleep(useconds);
753 } else
754 croak("Time::HiRes::sleep(%"NVgf"): negative time not invented yet", seconds);
92bc48ca 755 } else
f9d00e57 756 PerlProc_pause();
6e3b076d 757 gettimeofday(&Tb, NULL);
92bc48ca 758#if 0
759 printf("[%ld %ld] [%ld %ld]\n", Tb.tv_sec, Tb.tv_usec, Ta.tv_sec, Ta.tv_usec);
760#endif
52d72fba 761 RETVAL = (NV)(Tb.tv_sec-Ta.tv_sec)+0.000001*(NV)(Tb.tv_usec-Ta.tv_usec);
762
763 OUTPUT:
764 RETVAL
dcf686c9 765
766#endif
767
768#ifdef HAS_UALARM
769
3de7a4ec 770int
dcf686c9 771ualarm(useconds,interval=0)
772 int useconds
773 int interval
f7916ddb 774 CODE:
775 if (useconds < 0 || interval < 0)
3de7a4ec 776 croak("Time::HiRes::ualarm(%d, %d): negative time not invented yet", useconds, interval);
f7916ddb 777 RETVAL = ualarm(useconds, interval);
dcf686c9 778
f7916ddb 779 OUTPUT:
780 RETVAL
781
782NV
783alarm(seconds,interval=0)
784 NV seconds
785 NV interval
dcf686c9 786 CODE:
f7916ddb 787 if (seconds < 0.0 || interval < 0.0)
788 croak("Time::HiRes::alarm(%"NVgf", %"NVgf"): negative time not invented yet", seconds, interval);
789 RETVAL = (NV)ualarm(seconds * 1000000,
790 interval * 1000000) / 1E6;
dcf686c9 791
c6c619a9 792 OUTPUT:
793 RETVAL
794
dcf686c9 795#endif
796
797#ifdef HAS_GETTIMEOFDAY
db835671 798# ifdef MACOS_TRADITIONAL /* fix epoch TZ and use unsigned time_t */
799void
800gettimeofday()
801 PREINIT:
802 struct timeval Tp;
803 struct timezone Tz;
804 PPCODE:
805 int status;
6e3b076d 806 status = gettimeofday (&Tp, &Tz);
db835671 807 Tp.tv_sec += Tz.tz_minuteswest * 60; /* adjust for TZ */
808
809 if (GIMME == G_ARRAY) {
810 EXTEND(sp, 2);
811 /* Mac OS (Classic) has unsigned time_t */
812 PUSHs(sv_2mortal(newSVuv(Tp.tv_sec)));
813 PUSHs(sv_2mortal(newSViv(Tp.tv_usec)));
814 } else {
815 EXTEND(sp, 1);
816 PUSHs(sv_2mortal(newSVnv(Tp.tv_sec + (Tp.tv_usec / 1000000.0))));
817 }
818
819NV
820time()
821 PREINIT:
822 struct timeval Tp;
823 struct timezone Tz;
824 CODE:
825 int status;
6e3b076d 826 status = gettimeofday (&Tp, &Tz);
db835671 827 Tp.tv_sec += Tz.tz_minuteswest * 60; /* adjust for TZ */
828 RETVAL = Tp.tv_sec + (Tp.tv_usec / 1000000.0);
829 OUTPUT:
830 RETVAL
dcf686c9 831
db835671 832# else /* MACOS_TRADITIONAL */
dcf686c9 833void
834gettimeofday()
835 PREINIT:
836 struct timeval Tp;
837 PPCODE:
838 int status;
6e3b076d 839 status = gettimeofday (&Tp, NULL);
dcf686c9 840 if (GIMME == G_ARRAY) {
841 EXTEND(sp, 2);
842 PUSHs(sv_2mortal(newSViv(Tp.tv_sec)));
843 PUSHs(sv_2mortal(newSViv(Tp.tv_usec)));
844 } else {
845 EXTEND(sp, 1);
846 PUSHs(sv_2mortal(newSVnv(Tp.tv_sec + (Tp.tv_usec / 1000000.0))));
847 }
848
3c72ec00 849NV
dcf686c9 850time()
851 PREINIT:
852 struct timeval Tp;
853 CODE:
854 int status;
6e3b076d 855 status = gettimeofday (&Tp, NULL);
dcf686c9 856 RETVAL = Tp.tv_sec + (Tp.tv_usec / 1000000.);
857 OUTPUT:
858 RETVAL
859
db835671 860# endif /* MACOS_TRADITIONAL */
dcf686c9 861#endif
862
3c72ec00 863#if defined(HAS_GETITIMER) && defined(HAS_SETITIMER)
864
865#define TV2NV(tv) ((NV)((tv).tv_sec) + 0.000001 * (NV)((tv).tv_usec))
866
867void
868setitimer(which, seconds, interval = 0)
869 int which
870 NV seconds
871 NV interval
872 PREINIT:
873 struct itimerval newit;
874 struct itimerval oldit;
875 PPCODE:
f7916ddb 876 if (seconds < 0.0 || interval < 0.0)
436c6dd3 877 croak("Time::HiRes::setitimer(%"IVdf", %"NVgf", %"NVgf"): negative time not invented yet", (IV)which, seconds, interval);
3c72ec00 878 newit.it_value.tv_sec = seconds;
879 newit.it_value.tv_usec =
880 (seconds - (NV)newit.it_value.tv_sec) * 1000000.0;
881 newit.it_interval.tv_sec = interval;
882 newit.it_interval.tv_usec =
883 (interval - (NV)newit.it_interval.tv_sec) * 1000000.0;
884 if (setitimer(which, &newit, &oldit) == 0) {
885 EXTEND(sp, 1);
886 PUSHs(sv_2mortal(newSVnv(TV2NV(oldit.it_value))));
887 if (GIMME == G_ARRAY) {
888 EXTEND(sp, 1);
889 PUSHs(sv_2mortal(newSVnv(TV2NV(oldit.it_interval))));
890 }
891 }
892
893void
894getitimer(which)
895 int which
896 PREINIT:
897 struct itimerval nowit;
898 PPCODE:
899 if (getitimer(which, &nowit) == 0) {
900 EXTEND(sp, 1);
901 PUSHs(sv_2mortal(newSVnv(TV2NV(nowit.it_value))));
902 if (GIMME == G_ARRAY) {
903 EXTEND(sp, 1);
904 PUSHs(sv_2mortal(newSVnv(TV2NV(nowit.it_interval))));
905 }
906 }
907
908#endif
909
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