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Comparing Coro/Coro/State.xs (file contents):
Revision 1.407 by root, Sat Jun 11 15:30:21 2011 UTC vs.
Revision 1.441 by root, Tue Mar 4 05:07:44 2014 UTC

1/* this works around a bug in mingw32 providing a non-working setjmp */ 1/* this works around a bug in mingw32 providing a non-working setjmp */
2#define USE_NO_MINGW_SETJMP_TWO_ARGS 2#define USE_NO_MINGW_SETJMP_TWO_ARGS
3 3
4#define NDEBUG 1 4#define NDEBUG 1 /* perl usually disables NDEBUG later */
5 5
6#include "libcoro/coro.c" 6#include "libcoro/coro.c"
7 7
8#define PERL_NO_GET_CONTEXT 8#define PERL_NO_GET_CONTEXT
9#define PERL_EXT 9#define PERL_EXT
… …
12#include "perl.h" 12#include "perl.h"
13#include "XSUB.h" 13#include "XSUB.h"
14#include "perliol.h" 14#include "perliol.h"
15 15
16#include "schmorp.h" 16#include "schmorp.h"
17
18#define ECB_NO_THREADS 1
19#define ECB_NO_LIBM 1
17#include "ecb.h" 20#include "ecb.h"
18 21
19#include <stddef.h> 22#include <stddef.h>
20#include <stdio.h> 23#include <stdio.h>
21#include <errno.h> 24#include <errno.h>
22#include <assert.h> 25#include <assert.h>
23 26
24#ifndef SVs_PADSTALE 27#ifndef SVs_PADSTALE
25# define SVs_PADSTALE 0 28# define SVs_PADSTALE 0
29#endif
30
31#ifdef PadARRAY
32# define NEWPADAPI 1
33# define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *))
34#else
35typedef AV PADNAMELIST;
36# if !PERL_VERSION_ATLEAST(5,8,0)
37typedef AV PADLIST;
38typedef AV PAD;
39# endif
40# define PadlistARRAY(pl) ((PAD **)AvARRAY (pl))
41# define PadlistMAX(pl) AvFILLp (pl)
42# define PadlistNAMES(pl) (*PadlistARRAY (pl))
43# define PadARRAY AvARRAY
44# define PadMAX AvFILLp
45# define newPADLIST(var) ((var) = newAV (), av_extend (var, 1))
46#endif
47
48/* 5.19.something has replaced SVt_BIND by SVt_INVLIST */
49/* we just alias it to SVt_IV, as that is sufficient for swap_sv for now */
50#if PERL_VERSION_ATLEAST(5,19,0)
51# define SVt_BIND SVt_IV
26#endif 52#endif
27 53
28#if defined(_WIN32) 54#if defined(_WIN32)
29# undef HAS_GETTIMEOFDAY 55# undef HAS_GETTIMEOFDAY
30# undef setjmp 56# undef setjmp
… …
33# define setjmp _setjmp /* deep magic */ 59# define setjmp _setjmp /* deep magic */
34#else 60#else
35# include <inttypes.h> /* most portable stdint.h */ 61# include <inttypes.h> /* most portable stdint.h */
36#endif 62#endif
37 63
38#ifdef HAVE_MMAP
39# include <unistd.h>
40# include <sys/mman.h>
41# ifndef MAP_ANONYMOUS
42# ifdef MAP_ANON
43# define MAP_ANONYMOUS MAP_ANON
44# else
45# undef HAVE_MMAP
46# endif
47# endif
48# include <limits.h>
49# ifndef PAGESIZE
50# define PAGESIZE pagesize
51# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
52static long pagesize;
53# else
54# define BOOT_PAGESIZE (void)0
55# endif
56#else
57# define PAGESIZE 0
58# define BOOT_PAGESIZE (void)0
59#endif
60
61#if CORO_USE_VALGRIND
62# include <valgrind/valgrind.h>
63#endif
64
65/* the maximum number of idle cctx that will be pooled */ 64/* the maximum number of idle cctx that will be pooled */
66static int cctx_max_idle = 4; 65static int cctx_max_idle = 4;
67 66
68#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 67#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)
69# undef CORO_STACKGUARD 68# define HAS_SCOPESTACK_NAME 1
70#endif
71
72#ifndef CORO_STACKGUARD
73# define CORO_STACKGUARD 0
74#endif 69#endif
75 70
76/* prefer perl internal functions over our own? */ 71/* prefer perl internal functions over our own? */
77#ifndef CORO_PREFER_PERL_FUNCTIONS 72#ifndef CORO_PREFER_PERL_FUNCTIONS
78# define CORO_PREFER_PERL_FUNCTIONS 0 73# define CORO_PREFER_PERL_FUNCTIONS 0
… …
97# if CORO_PTHREAD 92# if CORO_PTHREAD
98static void *coro_thx; 93static void *coro_thx;
99# endif 94# endif
100#endif 95#endif
101 96
102/* used in state.h */
103#define VAR(name,type) VARx(name, PL_ ## name, type)
104
105#ifdef __linux 97#ifdef __linux
106# include <time.h> /* for timespec */ 98# include <time.h> /* for timespec */
107# include <syscall.h> /* for SYS_* */ 99# include <syscall.h> /* for SYS_* */
108# ifdef SYS_clock_gettime 100# ifdef SYS_clock_gettime
109# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 101# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
… …
172typedef struct coro_cctx 164typedef struct coro_cctx
173{ 165{
174 struct coro_cctx *next; 166 struct coro_cctx *next;
175 167
176 /* the stack */ 168 /* the stack */
177 void *sptr; 169 struct coro_stack stack;
178 size_t ssize;
179 170
180 /* cpu state */ 171 /* cpu state */
181 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 172 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
173#ifndef NDEBUG
182 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ 174 JMPENV *idle_te; /* same as idle_sp, but for top_env */
175#endif
183 JMPENV *top_env; 176 JMPENV *top_env;
184 coro_context cctx; 177 coro_context cctx;
185 178
186 U32 gen; 179 U32 gen;
187#if CORO_USE_VALGRIND 180#if CORO_USE_VALGRIND
… …
207}; 200};
208 201
209/* the structure where most of the perl state is stored, overlaid on the cxstack */ 202/* the structure where most of the perl state is stored, overlaid on the cxstack */
210typedef struct 203typedef struct
211{ 204{
212#define VARx(name,expr,type) type name; 205 #define VARx(name,expr,type) type name;
213# include "state.h" 206 #include "state.h"
214#undef VARx
215} perl_slots; 207} perl_slots;
216 208
217// how many context stack entries do we need for perl_slots 209/* how many context stack entries do we need for perl_slots */
218#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 210#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
219 211
220/* this is a structure representing a perl-level coroutine */ 212/* this is a structure representing a perl-level coroutine */
221struct coro 213struct coro
222{ 214{
… …
291#define coro_nready coroapi.nready 283#define coro_nready coroapi.nready
292 284
293/** JIT *********************************************************************/ 285/** JIT *********************************************************************/
294 286
295#if CORO_JIT 287#if CORO_JIT
288 /* APPLE doesn't have mmap though */
289 #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)
296 #ifndef CORO_JIT_TYPE 290 #ifndef CORO_JIT_TYPE
297 #if __x86_64 && (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris) 291 #if ECB_AMD64 && CORO_JIT_UNIXY
298 #define CORO_JIT_TYPE "amd64-unix" 292 #define CORO_JIT_TYPE "amd64-unix"
299 typedef void (*load_save_perl_slots_type)(perl_slots *); 293 #elif __i386 && CORO_JIT_UNIXY
300 #elif __i386 && (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris)
301 #define CORO_JIT_TYPE "x86-unix" 294 #define CORO_JIT_TYPE "x86-unix"
302 typedef void (*load_save_perl_slots_type)(perl_slots *);
303 #else
304 #undef CORO_JIT
305 #endif 295 #endif
306 #endif 296 #endif
307#endif 297#endif
308 298
299#if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0
300 #undef CORO_JIT
301#endif
302
309#if CORO_JIT 303#if CORO_JIT
304 typedef void (*load_save_perl_slots_type)(perl_slots *);
310static load_save_perl_slots_type load_perl_slots, save_perl_slots; 305 static load_save_perl_slots_type load_perl_slots, save_perl_slots;
311#endif 306#endif
312 307
313/** Coro::Select ************************************************************/ 308/** Coro::Select ************************************************************/
314 309
315static OP *(*coro_old_pp_sselect) (pTHX); 310static OP *(*coro_old_pp_sselect) (pTHX);
… …
332 327
333/** time stuff **************************************************************/ 328/** time stuff **************************************************************/
334 329
335#ifdef HAS_GETTIMEOFDAY 330#ifdef HAS_GETTIMEOFDAY
336 331
337ECB_INLINE void 332ecb_inline void
338coro_u2time (pTHX_ UV ret[2]) 333coro_u2time (pTHX_ UV ret[2])
339{ 334{
340 struct timeval tv; 335 struct timeval tv;
341 gettimeofday (&tv, 0); 336 gettimeofday (&tv, 0);
342 337
343 ret [0] = tv.tv_sec; 338 ret [0] = tv.tv_sec;
344 ret [1] = tv.tv_usec; 339 ret [1] = tv.tv_usec;
345} 340}
346 341
347ECB_INLINE double 342ecb_inline double
348coro_nvtime () 343coro_nvtime (void)
349{ 344{
350 struct timeval tv; 345 struct timeval tv;
351 gettimeofday (&tv, 0); 346 gettimeofday (&tv, 0);
352 347
353 return tv.tv_sec + tv.tv_usec * 1e-6; 348 return tv.tv_sec + tv.tv_usec * 1e-6;
354} 349}
355 350
356ECB_INLINE void 351ecb_inline void
357time_init (pTHX) 352time_init (pTHX)
358{ 353{
359 nvtime = coro_nvtime; 354 nvtime = coro_nvtime;
360 u2time = coro_u2time; 355 u2time = coro_u2time;
361} 356}
362 357
363#else 358#else
364 359
365ECB_INLINE void 360ecb_inline void
366time_init (pTHX) 361time_init (pTHX)
367{ 362{
368 SV **svp; 363 SV **svp;
369 364
370 require_pv ("Time/HiRes.pm"); 365 require_pv ("Time/HiRes.pm");
371 366
372 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); 367 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
373 368
374 if (!svp) croak ("Time::HiRes is required, but missing. Caught"); 369 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
375 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught"); 370 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
376 371
… …
412 get_hv (name, create); 407 get_hv (name, create);
413#endif 408#endif
414 return get_hv (name, create); 409 return get_hv (name, create);
415} 410}
416 411
417ECB_INLINE void 412ecb_inline void
418coro_times_update () 413coro_times_update (void)
419{ 414{
420#ifdef coro_clock_gettime 415#ifdef coro_clock_gettime
421 struct timespec ts; 416 struct timespec ts;
422 417
423 ts.tv_sec = ts.tv_nsec = 0; 418 ts.tv_sec = ts.tv_nsec = 0;
… …
435 time_real [0] = tv [0]; 430 time_real [0] = tv [0];
436 time_real [1] = tv [1] * 1000; 431 time_real [1] = tv [1] * 1000;
437#endif 432#endif
438} 433}
439 434
440ECB_INLINE void 435ecb_inline void
441coro_times_add (struct coro *c) 436coro_times_add (struct coro *c)
442{ 437{
443 c->t_real [1] += time_real [1]; 438 c->t_real [1] += time_real [1];
444 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } 439 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
445 c->t_real [0] += time_real [0]; 440 c->t_real [0] += time_real [0];
… …
447 c->t_cpu [1] += time_cpu [1]; 442 c->t_cpu [1] += time_cpu [1];
448 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } 443 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
449 c->t_cpu [0] += time_cpu [0]; 444 c->t_cpu [0] += time_cpu [0];
450} 445}
451 446
452ECB_INLINE void 447ecb_inline void
453coro_times_sub (struct coro *c) 448coro_times_sub (struct coro *c)
454{ 449{
455 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } 450 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
456 c->t_real [1] -= time_real [1]; 451 c->t_real [1] -= time_real [1];
457 c->t_real [0] -= time_real [0]; 452 c->t_real [0] -= time_real [0];
… …
478 : 0) 473 : 0)
479 474
480#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) 475#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
481#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) 476#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
482 477
483ECB_INLINE MAGIC * 478ecb_inline MAGIC *
484SvSTATEhv_p (pTHX_ SV *coro) 479SvSTATEhv_p (pTHX_ SV *coro)
485{ 480{
486 MAGIC *mg; 481 MAGIC *mg;
487 482
488 if (ecb_expect_true ( 483 if (ecb_expect_true (
… …
493 return mg; 488 return mg;
494 489
495 return 0; 490 return 0;
496} 491}
497 492
498ECB_INLINE struct coro * 493ecb_inline struct coro *
499SvSTATE_ (pTHX_ SV *coro) 494SvSTATE_ (pTHX_ SV *coro)
500{ 495{
501 MAGIC *mg; 496 MAGIC *mg;
502 497
503 if (SvROK (coro)) 498 if (SvROK (coro))
… …
517#define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) 512#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
518 513
519/*****************************************************************************/ 514/*****************************************************************************/
520/* padlist management and caching */ 515/* padlist management and caching */
521 516
522ECB_INLINE AV * 517ecb_inline PADLIST *
523coro_derive_padlist (pTHX_ CV *cv) 518coro_derive_padlist (pTHX_ CV *cv)
524{ 519{
525 AV *padlist = CvPADLIST (cv); 520 PADLIST *padlist = CvPADLIST (cv);
526 AV *newpadlist, *newpad; 521 PADLIST *newpadlist;
522 PAD *newpad;
523 PADOFFSET off = PadlistMAX (padlist) + 1;
527 524
528 newpadlist = newAV (); 525#if NEWPADAPI
526
527 /* if we had the original CvDEPTH, we might be able to steal the CvDEPTH+1 entry instead */
528 /* 20131102194744.GA6705@schmorp.de, 20131102195825.2013.qmail@lists-nntp.develooper.com */
529 while (!PadlistARRAY (padlist)[off - 1])
530 --off;
531
532 Perl_pad_push (aTHX_ padlist, off);
533
534 newpad = PadlistARRAY (padlist)[off];
535 PadlistARRAY (padlist)[off] = 0;
536
537#else
538
539#if PERL_VERSION_ATLEAST (5,10,0)
540 Perl_pad_push (aTHX_ padlist, off);
541#else
542 Perl_pad_push (aTHX_ padlist, off, 1);
543#endif
544
545 newpad = PadlistARRAY (padlist)[off];
546 PadlistMAX (padlist) = off - 1;
547
548#endif
549
550 newPADLIST (newpadlist);
551#if !PERL_VERSION_ATLEAST(5,15,3)
552 /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */
529 AvREAL_off (newpadlist); 553 AvREAL_off (newpadlist);
530#if PERL_VERSION_ATLEAST (5,10,0)
531 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
532#else
533 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
534#endif 554#endif
535 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
536 --AvFILLp (padlist);
537 555
538 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); 556 /* Already extended to 2 elements by newPADLIST. */
539 av_store (newpadlist, 1, (SV *)newpad); 557 PadlistMAX (newpadlist) = 1;
558 PadlistNAMES (newpadlist) = (PADNAMELIST *)SvREFCNT_inc_NN (PadlistNAMES (padlist));
559 PadlistARRAY (newpadlist)[1] = newpad;
540 560
541 return newpadlist; 561 return newpadlist;
542} 562}
543 563
544ECB_INLINE void 564ecb_inline void
545free_padlist (pTHX_ AV *padlist) 565free_padlist (pTHX_ PADLIST *padlist)
546{ 566{
547 /* may be during global destruction */ 567 /* may be during global destruction */
548 if (!IN_DESTRUCT) 568 if (!IN_DESTRUCT)
549 { 569 {
550 I32 i = AvFILLp (padlist); 570 I32 i = PadlistMAX (padlist);
551 571
552 while (i > 0) /* special-case index 0 */ 572 while (i > 0) /* special-case index 0 */
553 { 573 {
554 /* we try to be extra-careful here */ 574 /* we try to be extra-careful here */
555 AV *av = (AV *)AvARRAY (padlist)[i--]; 575 PAD *pad = PadlistARRAY (padlist)[i--];
556 I32 j = AvFILLp (av);
557 576
577 if (pad)
578 {
579 I32 j = PadMAX (pad);
580
558 while (j >= 0) 581 while (j >= 0)
559 SvREFCNT_dec (AvARRAY (av)[j--]); 582 SvREFCNT_dec (PadARRAY (pad)[j--]);
560 583
561 AvFILLp (av) = -1; 584 PadMAX (pad) = -1;
562 SvREFCNT_dec (av); 585 SvREFCNT_dec (pad);
586 }
563 } 587 }
564 588
565 SvREFCNT_dec (AvARRAY (padlist)[0]); 589 SvREFCNT_dec (PadlistNAMES (padlist));
566 590
591#if NEWPADAPI
592 Safefree (PadlistARRAY (padlist));
593 Safefree (padlist);
594#else
567 AvFILLp (padlist) = -1; 595 AvFILLp (padlist) = -1;
596 AvREAL_off (padlist);
568 SvREFCNT_dec ((SV*)padlist); 597 SvREFCNT_dec ((SV*)padlist);
598#endif
569 } 599 }
570} 600}
571 601
572static int 602static int
573coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 603coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
574{ 604{
575 AV *padlist; 605 PADLIST *padlist;
576 AV *av = (AV *)mg->mg_obj; 606 PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t));
607 size_t len = *(size_t *)mg->mg_ptr;
577 608
578 /* perl manages to free our internal AV and _then_ call us */ 609 /* perl manages to free our internal AV and _then_ call us */
579 if (IN_DESTRUCT) 610 if (IN_DESTRUCT)
580 return 0; 611 return 0;
581 612
582 /* casting is fun. */ 613 while (len--)
583 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
584 free_padlist (aTHX_ padlist); 614 free_padlist (aTHX_ padlists[len]);
585
586 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
587 615
588 return 0; 616 return 0;
589} 617}
590 618
591static MGVTBL coro_cv_vtbl = { 619static MGVTBL coro_cv_vtbl = {
592 0, 0, 0, 0, 620 0, 0, 0, 0,
593 coro_cv_free 621 coro_cv_free
594}; 622};
595 623
596/* the next two functions merely cache the padlists */ 624/* the next two functions merely cache the padlists */
597ECB_INLINE void 625ecb_inline void
598get_padlist (pTHX_ CV *cv) 626get_padlist (pTHX_ CV *cv)
599{ 627{
600 MAGIC *mg = CORO_MAGIC_cv (cv); 628 MAGIC *mg = CORO_MAGIC_cv (cv);
601 AV *av; 629 size_t *lenp;
602 630
603 if (ecb_expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 631 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
604 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 632 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
605 else 633 else
606 { 634 {
607#if CORO_PREFER_PERL_FUNCTIONS 635#if CORO_PREFER_PERL_FUNCTIONS
608 /* this is probably cleaner? but also slower! */ 636 /* this is probably cleaner? but also slower! */
609 /* in practise, it seems to be less stable */ 637 /* in practise, it seems to be less stable */
… …
615 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); 643 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
616#endif 644#endif
617 } 645 }
618} 646}
619 647
620ECB_INLINE void 648ecb_inline void
621put_padlist (pTHX_ CV *cv) 649put_padlist (pTHX_ CV *cv)
622{ 650{
623 MAGIC *mg = CORO_MAGIC_cv (cv); 651 MAGIC *mg = CORO_MAGIC_cv (cv);
624 AV *av;
625 652
626 if (ecb_expect_false (!mg)) 653 if (ecb_expect_false (!mg))
654 {
627 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 655 mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
656 Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char);
657 mg->mg_len = 1; /* so mg_free frees mg_ptr */
658 }
659 else
660 Renew (mg->mg_ptr,
661 sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *),
662 char);
628 663
629 av = (AV *)mg->mg_obj; 664 ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
630
631 if (ecb_expect_false (AvFILLp (av) >= AvMAX (av)))
632 av_extend (av, AvFILLp (av) + 1);
633
634 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
635} 665}
636 666
637/** load & save, init *******************************************************/ 667/** load & save, init *******************************************************/
638 668
669ecb_inline void
670swap_sv (SV *a, SV *b)
671{
672 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
673 SV tmp;
674
675 /* swap sv_any */
676 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
677
678 /* swap sv_flags */
679 SvFLAGS (&tmp) = SvFLAGS (a);
680 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
681 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
682
683#if PERL_VERSION_ATLEAST (5,10,0)
684 /* perl 5.10 and later complicates this _quite_ a bit, but it also
685 * is much faster, so no quarrels here. alternatively, we could
686 * sv_upgrade to avoid this.
687 */
688 {
689 /* swap sv_u */
690 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
691
692 /* if SvANY points to the head, we need to adjust the pointers,
693 * as the pointer for a still points to b, and maybe vice versa.
694 */
695 #define svany_in_head(type) \
696 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
697
698 if (svany_in_head (SvTYPE (a)))
699 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
700
701 if (svany_in_head (SvTYPE (b)))
702 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
703 }
704#endif
705}
706
639/* swap sv heads, at least logically */ 707/* swap sv heads, at least logically */
640static void 708static void
641swap_svs (pTHX_ Coro__State c) 709swap_svs (pTHX_ Coro__State c)
642{ 710{
643 int i; 711 int i;
644 712
645 for (i = 0; i <= AvFILLp (c->swap_sv); ) 713 for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
646 { 714 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
647 SV *a = AvARRAY (c->swap_sv)[i++];
648 SV *b = AvARRAY (c->swap_sv)[i++];
649
650 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
651 SV tmp;
652
653 /* swap sv_any */
654 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
655
656 /* swap sv_flags */
657 SvFLAGS (&tmp) = SvFLAGS (a);
658 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
659 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
660
661#if PERL_VERSION_ATLEAST (5,10,0)
662 /* perl 5.10 complicates this _quite_ a bit, but it also is
663 * much faster, so no quarrels here. alternatively, we could
664 * sv_upgrade to avoid this.
665 */
666 {
667 /* swap sv_u */
668 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
669
670 /* if SvANY points to the head, we need to adjust the pointers,
671 * as the pointer for a still points to b, and maybe vice versa.
672 */
673 #define svany_in_head(type) \
674 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
675
676 if (svany_in_head (SvTYPE (a)))
677 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
678
679 if (svany_in_head (SvTYPE (b)))
680 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
681 }
682#endif
683 }
684} 715}
685 716
686#define SWAP_SVS(coro) \ 717#define SWAP_SVS(coro) \
687 if (ecb_expect_false ((coro)->swap_sv)) \ 718 if (ecb_expect_false ((coro)->swap_sv)) \
688 swap_svs (aTHX_ (coro)) 719 swap_svs (aTHX_ (coro))
… …
700 731
701#if CORO_JIT 732#if CORO_JIT
702 load_perl_slots (slot); 733 load_perl_slots (slot);
703#else 734#else
704 #define VARx(name,expr,type) expr = slot->name; 735 #define VARx(name,expr,type) expr = slot->name;
705 # include "state.h" 736 #include "state.h"
706 #undef VARx
707#endif 737#endif
708 738
709 { 739 {
710 dSP; 740 dSP;
711 741
… …
714 /* now do the ugly restore mess */ 744 /* now do the ugly restore mess */
715 while (ecb_expect_true (cv = (CV *)POPs)) 745 while (ecb_expect_true (cv = (CV *)POPs))
716 { 746 {
717 put_padlist (aTHX_ cv); /* mark this padlist as available */ 747 put_padlist (aTHX_ cv); /* mark this padlist as available */
718 CvDEPTH (cv) = PTR2IV (POPs); 748 CvDEPTH (cv) = PTR2IV (POPs);
719 CvPADLIST (cv) = (AV *)POPs; 749 CvPADLIST (cv) = (PADLIST *)POPs;
720 } 750 }
721 751
722 PUTBACK; 752 PUTBACK;
723 } 753 }
724 754
… …
814 844
815 PUTBACK; 845 PUTBACK;
816 } 846 }
817 847
818 /* allocate some space on the context stack for our purposes */ 848 /* allocate some space on the context stack for our purposes */
819 if (ecb_expect_false (cxstack_ix + SLOT_COUNT >= cxstack_max)) 849 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
820 { 850 {
821 unsigned int i; 851 unsigned int i;
822 852
823 for (i = 0; i < SLOT_COUNT; ++i) 853 for (i = 0; i < SLOT_COUNT; ++i)
824 CXINC; 854 CXINC;
… …
833 863
834#if CORO_JIT 864#if CORO_JIT
835 save_perl_slots (slot); 865 save_perl_slots (slot);
836#else 866#else
837 #define VARx(name,expr,type) slot->name = expr; 867 #define VARx(name,expr,type) slot->name = expr;
838 # include "state.h" 868 #include "state.h"
839 #undef VARx
840#endif 869#endif
841 } 870 }
842} 871}
843 872
844/* 873/*
… …
876#endif 905#endif
877 906
878 New(54,PL_scopestack,8,I32); 907 New(54,PL_scopestack,8,I32);
879 PL_scopestack_ix = 0; 908 PL_scopestack_ix = 0;
880 PL_scopestack_max = 8; 909 PL_scopestack_max = 8;
910#if HAS_SCOPESTACK_NAME
911 New(54,PL_scopestack_name,8,const char*);
912#endif
881 913
882 New(54,PL_savestack,24,ANY); 914 New(54,PL_savestack,24,ANY);
883 PL_savestack_ix = 0; 915 PL_savestack_ix = 0;
884 PL_savestack_max = 24; 916 PL_savestack_max = 24;
885 917
… …
913 } 945 }
914 946
915 Safefree (PL_tmps_stack); 947 Safefree (PL_tmps_stack);
916 Safefree (PL_markstack); 948 Safefree (PL_markstack);
917 Safefree (PL_scopestack); 949 Safefree (PL_scopestack);
950#if HAS_SCOPESTACK_NAME
951 Safefree (PL_scopestack_name);
952#endif
918 Safefree (PL_savestack); 953 Safefree (PL_savestack);
919#if !PERL_VERSION_ATLEAST (5,10,0) 954#if !PERL_VERSION_ATLEAST (5,10,0)
920 Safefree (PL_retstack); 955 Safefree (PL_retstack);
921#endif 956#endif
922} 957}
… …
982 { 1017 {
983 SV **svp = 0; 1018 SV **svp = 0;
984 1019
985 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1020 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
986 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1021 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
987 1022
988 if (svp) 1023 if (svp)
989 { 1024 {
990 sv_setsv (sv, *svp ? *svp : &PL_sv_undef); 1025 SV *ssv;
1026
1027 if (!*svp)
1028 ssv = &PL_sv_undef;
1029 else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1030 ssv = sv_2mortal (newRV_inc (*svp));
1031 else
1032 ssv = *svp;
1033
1034 sv_setsv (sv, ssv);
991 return 0; 1035 return 0;
992 } 1036 }
993 } 1037 }
994 1038
995 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1039 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
… …
1089 PL_hints = 0; 1133 PL_hints = 0;
1090 1134
1091 /* recreate the die/warn hooks */ 1135 /* recreate the die/warn hooks */
1092 PL_diehook = SvREFCNT_inc (rv_diehook); 1136 PL_diehook = SvREFCNT_inc (rv_diehook);
1093 PL_warnhook = SvREFCNT_inc (rv_warnhook); 1137 PL_warnhook = SvREFCNT_inc (rv_warnhook);
1094 1138
1095 GvSV (PL_defgv) = newSV (0); 1139 GvSV (PL_defgv) = newSV (0);
1096 GvAV (PL_defgv) = coro->args; coro->args = 0; 1140 GvAV (PL_defgv) = coro->args; coro->args = 0;
1097 GvSV (PL_errgv) = newSV (0); 1141 GvSV (PL_errgv) = newSV (0);
1098 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1142 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1099 GvHV (PL_hintgv) = 0; 1143 GvHV (PL_hintgv) = 0;
… …
1187 /* restore swapped sv's */ 1231 /* restore swapped sv's */
1188 SWAP_SVS (coro); 1232 SWAP_SVS (coro);
1189 1233
1190 coro_destruct_stacks (aTHX); 1234 coro_destruct_stacks (aTHX);
1191 1235
1192 // now save some sv's to be free'd later 1236 /* now save some sv's to be free'd later */
1193 svf [0] = GvSV (PL_defgv); 1237 svf [0] = GvSV (PL_defgv);
1194 svf [1] = (SV *)GvAV (PL_defgv); 1238 svf [1] = (SV *)GvAV (PL_defgv);
1195 svf [2] = GvSV (PL_errgv); 1239 svf [2] = GvSV (PL_errgv);
1196 svf [3] = (SV *)PL_defoutgv; 1240 svf [3] = (SV *)PL_defoutgv;
1197 svf [4] = PL_rs; 1241 svf [4] = PL_rs;
… …
1217 SvREFCNT_dec (coro->invoke_cb); 1261 SvREFCNT_dec (coro->invoke_cb);
1218 SvREFCNT_dec (coro->invoke_av); 1262 SvREFCNT_dec (coro->invoke_av);
1219 } 1263 }
1220} 1264}
1221 1265
1222ECB_INLINE void 1266ecb_inline void
1223free_coro_mortal (pTHX) 1267free_coro_mortal (pTHX)
1224{ 1268{
1225 if (ecb_expect_true (coro_mortal)) 1269 if (ecb_expect_true (coro_mortal))
1226 { 1270 {
1227 SvREFCNT_dec ((SV *)coro_mortal); 1271 SvREFCNT_dec ((SV *)coro_mortal);
… …
1386 slf_frame.prepare = slf_prepare_set_stacklevel; 1430 slf_frame.prepare = slf_prepare_set_stacklevel;
1387 slf_frame.check = slf_check_set_stacklevel; 1431 slf_frame.check = slf_check_set_stacklevel;
1388} 1432}
1389 1433
1390/* the tail of transfer: execute stuff we can only do after a transfer */ 1434/* the tail of transfer: execute stuff we can only do after a transfer */
1391ECB_INLINE void 1435ecb_inline void
1392transfer_tail (pTHX) 1436transfer_tail (pTHX)
1393{ 1437{
1394 free_coro_mortal (aTHX); 1438 free_coro_mortal (aTHX);
1439}
1440
1441/* try to exit the same way perl's main function would do */
1442/* we do not bother resetting the environment or other things *7
1443/* that are not, uhm, essential */
1444/* this obviously also doesn't work when perl is embedded */
1445static void ecb_noinline ecb_cold
1446perlish_exit (pTHX)
1447{
1448 int exitstatus = perl_destruct (PL_curinterp);
1449 perl_free (PL_curinterp);
1450 exit (exitstatus);
1395} 1451}
1396 1452
1397/* 1453/*
1398 * this is a _very_ stripped down perl interpreter ;) 1454 * this is a _very_ stripped down perl interpreter ;)
1399 */ 1455 */
… …
1428 */ 1484 */
1429 1485
1430 /* 1486 /*
1431 * If perl-run returns we assume exit() was being called or the coro 1487 * If perl-run returns we assume exit() was being called or the coro
1432 * fell off the end, which seems to be the only valid (non-bug) 1488 * fell off the end, which seems to be the only valid (non-bug)
1433 * reason for perl_run to return. We try to exit by jumping to the 1489 * reason for perl_run to return. We try to mimic whatever perl is normally
1434 * bootstrap-time "top" top_env, as we cannot restore the "main" 1490 * doing in that case. YMMV.
1435 * coroutine as Coro has no such concept.
1436 * This actually isn't valid with the pthread backend, but OSes requiring
1437 * that backend are too broken to do it in a standards-compliant way.
1438 */ 1491 */
1439 PL_top_env = main_top_env; 1492 perlish_exit (aTHX);
1440 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1441 } 1493 }
1442} 1494}
1443 1495
1444static coro_cctx * 1496static coro_cctx *
1445cctx_new () 1497cctx_new (void)
1446{ 1498{
1447 coro_cctx *cctx; 1499 coro_cctx *cctx;
1448 1500
1449 ++cctx_count; 1501 ++cctx_count;
1450 New (0, cctx, 1, coro_cctx); 1502 New (0, cctx, 1, coro_cctx);
… …
1456 return cctx; 1508 return cctx;
1457} 1509}
1458 1510
1459/* create a new cctx only suitable as source */ 1511/* create a new cctx only suitable as source */
1460static coro_cctx * 1512static coro_cctx *
1461cctx_new_empty () 1513cctx_new_empty (void)
1462{ 1514{
1463 coro_cctx *cctx = cctx_new (); 1515 coro_cctx *cctx = cctx_new ();
1464 1516
1465 cctx->sptr = 0; 1517 cctx->stack.sptr = 0;
1466 coro_create (&cctx->cctx, 0, 0, 0, 0); 1518 coro_create (&cctx->cctx, 0, 0, 0, 0);
1467 1519
1468 return cctx; 1520 return cctx;
1469} 1521}
1470 1522
1471/* create a new cctx suitable as destination/running a perl interpreter */ 1523/* create a new cctx suitable as destination/running a perl interpreter */
1472static coro_cctx * 1524static coro_cctx *
1473cctx_new_run () 1525cctx_new_run (void)
1474{ 1526{
1475 coro_cctx *cctx = cctx_new (); 1527 coro_cctx *cctx = cctx_new ();
1476 void *stack_start;
1477 size_t stack_size;
1478 1528
1479#if HAVE_MMAP 1529 if (!coro_stack_alloc (&cctx->stack, cctx_stacksize))
1480 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1481 /* mmap supposedly does allocate-on-write for us */
1482 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1483
1484 if (cctx->sptr != (void *)-1)
1485 {
1486 #if CORO_STACKGUARD
1487 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1488 #endif
1489 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1490 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1491 cctx->flags |= CC_MAPPED;
1492 } 1530 {
1493 else
1494#endif
1495 {
1496 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1497 New (0, cctx->sptr, cctx_stacksize, long);
1498
1499 if (!cctx->sptr)
1500 {
1501 perror ("FATAL: unable to allocate stack for coroutine, exiting."); 1531 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1502 _exit (EXIT_FAILURE); 1532 _exit (EXIT_FAILURE);
1503 }
1504
1505 stack_start = cctx->sptr;
1506 stack_size = cctx->ssize;
1507 } 1533 }
1508 1534
1509 #if CORO_USE_VALGRIND
1510 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1511 #endif
1512
1513 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); 1535 coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze);
1514 1536
1515 return cctx; 1537 return cctx;
1516} 1538}
1517 1539
1518static void 1540static void
… …
1524 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current)); 1546 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1525 1547
1526 --cctx_count; 1548 --cctx_count;
1527 coro_destroy (&cctx->cctx); 1549 coro_destroy (&cctx->cctx);
1528 1550
1529 /* coro_transfer creates new, empty cctx's */ 1551 coro_stack_free (&cctx->stack);
1530 if (cctx->sptr)
1531 {
1532 #if CORO_USE_VALGRIND
1533 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1534 #endif
1535
1536#if HAVE_MMAP
1537 if (cctx->flags & CC_MAPPED)
1538 munmap (cctx->sptr, cctx->ssize);
1539 else
1540#endif
1541 Safefree (cctx->sptr);
1542 }
1543 1552
1544 Safefree (cctx); 1553 Safefree (cctx);
1545} 1554}
1546 1555
1547/* wether this cctx should be destructed */ 1556/* wether this cctx should be destructed */
… …
1566} 1575}
1567 1576
1568static void 1577static void
1569cctx_put (coro_cctx *cctx) 1578cctx_put (coro_cctx *cctx)
1570{ 1579{
1571 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1580 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr));
1572 1581
1573 /* free another cctx if overlimit */ 1582 /* free another cctx if overlimit */
1574 if (ecb_expect_false (cctx_idle >= cctx_max_idle)) 1583 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1575 { 1584 {
1576 coro_cctx *first = cctx_first; 1585 coro_cctx *first = cctx_first;
… …
1702 return; 1711 return;
1703 1712
1704 slf_destroy (aTHX_ coro); 1713 slf_destroy (aTHX_ coro);
1705 1714
1706 coro->flags |= CF_ZOMBIE; 1715 coro->flags |= CF_ZOMBIE;
1707 1716
1708 if (coro->flags & CF_READY) 1717 if (coro->flags & CF_READY)
1709 { 1718 {
1710 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1719 /* reduce nready, as destroying a ready coro effectively unreadies it */
1711 /* alternative: look through all ready queues and remove the coro */ 1720 /* alternative: look through all ready queues and remove the coro */
1712 --coro_nready; 1721 --coro_nready;
… …
1789 TRANSFER (ta, 1); 1798 TRANSFER (ta, 1);
1790} 1799}
1791 1800
1792/** Coro ********************************************************************/ 1801/** Coro ********************************************************************/
1793 1802
1794ECB_INLINE void 1803ecb_inline void
1795coro_enq (pTHX_ struct coro *coro) 1804coro_enq (pTHX_ struct coro *coro)
1796{ 1805{
1797 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; 1806 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1798 1807
1799 SvREFCNT_inc_NN (coro->hv); 1808 SvREFCNT_inc_NN (coro->hv);
… …
1801 coro->next_ready = 0; 1810 coro->next_ready = 0;
1802 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; 1811 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1803 ready [1] = coro; 1812 ready [1] = coro;
1804} 1813}
1805 1814
1806ECB_INLINE struct coro * 1815ecb_inline struct coro *
1807coro_deq (pTHX) 1816coro_deq (pTHX)
1808{ 1817{
1809 int prio; 1818 int prio;
1810 1819
1811 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) 1820 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
… …
1864{ 1873{
1865 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1874 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1866} 1875}
1867 1876
1868/* expects to own a reference to next->hv */ 1877/* expects to own a reference to next->hv */
1869ECB_INLINE void 1878ecb_inline void
1870prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1879prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1871{ 1880{
1872 SV *prev_sv = SvRV (coro_current); 1881 SV *prev_sv = SvRV (coro_current);
1873 1882
1874 ta->prev = SvSTATE_hv (prev_sv); 1883 ta->prev = SvSTATE_hv (prev_sv);
… …
1908 /* nothing to schedule: call the idle handler */ 1917 /* nothing to schedule: call the idle handler */
1909 if (SvROK (sv_idle) 1918 if (SvROK (sv_idle)
1910 && SvOBJECT (SvRV (sv_idle))) 1919 && SvOBJECT (SvRV (sv_idle)))
1911 { 1920 {
1912 if (SvRV (sv_idle) == SvRV (coro_current)) 1921 if (SvRV (sv_idle) == SvRV (coro_current))
1922 {
1923 require_pv ("Carp");
1924
1925 {
1926 dSP;
1927
1928 ENTER;
1929 SAVETMPS;
1930
1931 PUSHMARK (SP);
1913 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught"); 1932 XPUSHs (sv_2mortal (newSVpv ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught", 0)));
1933 PUTBACK;
1934 call_pv ("Carp::confess", G_VOID | G_DISCARD);
1935
1936 FREETMPS;
1937 LEAVE;
1938 }
1939 }
1914 1940
1915 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ 1941 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1916 api_ready (aTHX_ SvRV (sv_idle)); 1942 api_ready (aTHX_ SvRV (sv_idle));
1917 --coro_nready; 1943 --coro_nready;
1918 } 1944 }
… …
1933 } 1959 }
1934 } 1960 }
1935 } 1961 }
1936} 1962}
1937 1963
1938ECB_INLINE void 1964ecb_inline void
1939prepare_cede (pTHX_ struct coro_transfer_args *ta) 1965prepare_cede (pTHX_ struct coro_transfer_args *ta)
1940{ 1966{
1941 api_ready (aTHX_ coro_current); 1967 api_ready (aTHX_ coro_current);
1942 prepare_schedule (aTHX_ ta); 1968 prepare_schedule (aTHX_ ta);
1943} 1969}
1944 1970
1945ECB_INLINE void 1971ecb_inline void
1946prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 1972prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1947{ 1973{
1948 SV *prev = SvRV (coro_current); 1974 SV *prev = SvRV (coro_current);
1949 1975
1950 if (coro_nready) 1976 if (coro_nready)
… …
2115{ 2141{
2116 AV *od = coro->on_destroy; 2142 AV *od = coro->on_destroy;
2117 2143
2118 if (!od) 2144 if (!od)
2119 return; 2145 return;
2146
2147 coro->on_destroy = 0;
2148 sv_2mortal ((SV *)od);
2120 2149
2121 while (AvFILLp (od) >= 0) 2150 while (AvFILLp (od) >= 0)
2122 { 2151 {
2123 SV *cb = sv_2mortal (av_pop (od)); 2152 SV *cb = sv_2mortal (av_pop (od));
2124 2153
… …
2145 2174
2146static void 2175static void
2147coro_set_status (pTHX_ struct coro *coro, SV **arg, int items) 2176coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
2148{ 2177{
2149 AV *av; 2178 AV *av;
2150 2179
2151 if (coro->status) 2180 if (coro->status)
2152 { 2181 {
2153 av = coro->status; 2182 av = coro->status;
2154 av_clear (av); 2183 av_clear (av);
2155 } 2184 }
… …
2202 2231
2203 coro = SvSTATE (arg [0]); 2232 coro = SvSTATE (arg [0]);
2204 coro_hv = coro->hv; 2233 coro_hv = coro->hv;
2205 2234
2206 coro_set_status (aTHX_ coro, arg + 1, items - 1); 2235 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2207 2236
2208 if (ecb_expect_false (coro->flags & CF_NOCANCEL)) 2237 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2209 { 2238 {
2210 /* coro currently busy cancelling something, so just notify it */ 2239 /* coro currently busy cancelling something, so just notify it */
2211 coro->slf_frame.data = (void *)coro; 2240 coro->slf_frame.data = (void *)coro;
2212 2241
… …
2391 2420
2392static int 2421static int
2393slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) 2422slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
2394{ 2423{
2395 SV *data = (SV *)frame->data; 2424 SV *data = (SV *)frame->data;
2396 2425
2397 if (CORO_THROW) 2426 if (CORO_THROW)
2398 return 0; 2427 return 0;
2399 2428
2400 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2429 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2401 return 1; 2430 return 1;
… …
2437 cb = sv_2mortal (coro->rouse_cb); 2466 cb = sv_2mortal (coro->rouse_cb);
2438 coro->rouse_cb = 0; 2467 coro->rouse_cb = 0;
2439 } 2468 }
2440 2469
2441 if (!SvROK (cb) 2470 if (!SvROK (cb)
2442 || SvTYPE (SvRV (cb)) != SVt_PVCV 2471 || SvTYPE (SvRV (cb)) != SVt_PVCV
2443 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2472 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2444 croak ("Coro::rouse_wait called with illegal callback argument,"); 2473 croak ("Coro::rouse_wait called with illegal callback argument,");
2445 2474
2446 { 2475 {
2447 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ 2476 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
… …
2570 2599
2571/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */ 2600/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2572static void 2601static void
2573slf_destroy (pTHX_ struct coro *coro) 2602slf_destroy (pTHX_ struct coro *coro)
2574{ 2603{
2575 /* this callback is reserved for slf functions needing to do cleanup */ 2604 struct CoroSLF frame = coro->slf_frame;
2576 if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty)
2577 coro->slf_frame.destroy (aTHX_ &coro->slf_frame);
2578 2605
2579 /* 2606 /*
2580 * The on_destroy above most likely is from an SLF call. 2607 * The on_destroy below most likely is from an SLF call.
2581 * Since by definition the SLF call will not finish when we destroy 2608 * Since by definition the SLF call will not finish when we destroy
2582 * the coro, we will have to force-finish it here, otherwise 2609 * the coro, we will have to force-finish it here, otherwise
2583 * cleanup functions cannot call SLF functions. 2610 * cleanup functions cannot call SLF functions.
2584 */ 2611 */
2585 coro->slf_frame.prepare = 0; 2612 coro->slf_frame.prepare = 0;
2613 coro->slf_frame.destroy = 0;
2614
2615 /* this callback is reserved for slf functions needing to do cleanup */
2616 if (frame.destroy && frame.prepare && !PL_dirty)
2617 frame.destroy (aTHX_ &frame);
2586} 2618}
2587 2619
2588/* 2620/*
2589 * these not obviously related functions are all rolled into one 2621 * these not obviously related functions are all rolled into one
2590 * function to increase chances that they all will call transfer with the same 2622 * function to increase chances that they all will call transfer with the same
… …
2950 { 2982 {
2951 int i; 2983 int i;
2952 /* if we were woken up but can't down, we look through the whole */ 2984 /* if we were woken up but can't down, we look through the whole */
2953 /* waiters list and only add us if we aren't in there already */ 2985 /* waiters list and only add us if we aren't in there already */
2954 /* this avoids some degenerate memory usage cases */ 2986 /* this avoids some degenerate memory usage cases */
2955 for (i = AvFILLp (av); i > 0; --i) // i > 0 is not an off-by-one bug 2987 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2956 if (AvARRAY (av)[i] == coro_hv) 2988 if (AvARRAY (av)[i] == coro_hv)
2957 return 1; 2989 return 1;
2958 2990
2959 av_push (av, SvREFCNT_inc (coro_hv)); 2991 av_push (av, SvREFCNT_inc (coro_hv));
2960 return 1; 2992 return 1;
… …
3168 /* it quickly returns */ 3200 /* it quickly returns */
3169 if (CORO_THROW) 3201 if (CORO_THROW)
3170 return 0; 3202 return 0;
3171 3203
3172 /* one element that is an RV? repeat! */ 3204 /* one element that is an RV? repeat! */
3173 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 3205 if (AvFILLp (state) == 0 && SvTYPE (AvARRAY (state)[0]) != SVt_PV)
3174 return 1; 3206 return 1;
3175 3207
3176 /* restore status */ 3208 /* restore status */
3177 { 3209 {
3178 SV *data_sv = av_pop (state); 3210 SV *data_sv = av_pop (state);
… …
3340#endif 3372#endif
3341 3373
3342#if CORO_JIT 3374#if CORO_JIT
3343 3375
3344static void ecb_noinline ecb_cold 3376static void ecb_noinline ecb_cold
3345pushav_3uv (pTHX_ UV a, UV b, UV c) 3377pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3346{ 3378{
3347 dSP; 3379 dSP;
3348 AV *av = newAV (); 3380 AV *av = newAV ();
3349 3381
3382 av_store (av, 3, newSVuv (d));
3350 av_store (av, 2, newSVuv (c)); 3383 av_store (av, 2, newSVuv (c));
3351 av_store (av, 1, newSVuv (b)); 3384 av_store (av, 1, newSVuv (b));
3352 av_store (av, 0, newSVuv (a)); 3385 av_store (av, 0, newSVuv (a));
3353 3386
3354 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); 3387 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
… …
3361{ 3394{
3362 dSP; 3395 dSP;
3363 SV *load, *save; 3396 SV *load, *save;
3364 char *map_base; 3397 char *map_base;
3365 char *load_ptr, *save_ptr; 3398 char *load_ptr, *save_ptr;
3366 STRLEN load_len, save_len; 3399 STRLEN load_len, save_len, map_len;
3367 int count; 3400 int count;
3368 3401
3402 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3403
3369 PUSHMARK (SP); 3404 PUSHMARK (SP);
3370 PUTBACK;
3371#define VARx(name,expr,type) pushav_3uv (aTHX_ (UV)&(expr), offsetof (perl_slots, name), sizeof (type)); 3405 #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3372# include "state.h" 3406 #include "state.h"
3373#undef VARx
3374 count = call_pv ("Coro::State::_jit", G_ARRAY); 3407 count = call_pv ("Coro::State::_jit", G_ARRAY);
3375 SPAGAIN; 3408 SPAGAIN;
3376 3409
3377 save = POPs; save_ptr = SvPVbyte (save, save_len); 3410 save = POPs; save_ptr = SvPVbyte (save, save_len);
3378 load = POPs; load_ptr = SvPVbyte (load, load_len); 3411 load = POPs; load_ptr = SvPVbyte (load, load_len);
3379 3412
3413 map_len = load_len + save_len + 16;
3414
3380 map_base = mmap (0, load_len + save_len + 16, PROT_EXEC | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); 3415 map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3381 3416
3382 assert (("Coro: unable mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED)); 3417 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3383 3418
3384 load_perl_slots = (load_save_perl_slots_type)map_base; 3419 load_perl_slots = (load_save_perl_slots_type)map_base;
3385 memcpy (map_base, load_ptr, load_len); 3420 memcpy (map_base, load_ptr, load_len);
3386 3421
3387 map_base += (load_len + 15) & ~15; 3422 map_base += (load_len + 15) & ~15;
3388 3423
3389 save_perl_slots = (load_save_perl_slots_type)map_base; 3424 save_perl_slots = (load_save_perl_slots_type)map_base;
3390 memcpy (map_base, save_ptr, save_len); 3425 memcpy (map_base, save_ptr, save_len);
3426
3427 /* we are good citizens and try to make the page read-only, so the evil evil */
3428 /* hackers might have it a bit more difficult */
3429 mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
3430
3431 PUTBACK;
3432 eval_pv ("undef &Coro::State::_jit", 1);
3391} 3433}
3392 3434
3393#endif 3435#endif
3394 3436
3395MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3437MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
… …
3401#ifdef USE_ITHREADS 3443#ifdef USE_ITHREADS
3402# if CORO_PTHREAD 3444# if CORO_PTHREAD
3403 coro_thx = PERL_GET_CONTEXT; 3445 coro_thx = PERL_GET_CONTEXT;
3404# endif 3446# endif
3405#endif 3447#endif
3406 BOOT_PAGESIZE;
3407
3408 /* perl defines these to check for existance first, but why it doesn't */ 3448 /* perl defines these to check for existance first, but why it doesn't */
3409 /* just create them one at init time is not clear to me, except for */ 3449 /* just create them one at init time is not clear to me, except for */
3410 /* programs trying to delete them, but... */ 3450 /* programs trying to delete them, but... */
3411 /* anyway, we declare this as invalid and make sure they are initialised here */ 3451 /* anyway, we declare this as invalid and make sure they are initialised here */
3412 DEFSV; 3452 DEFSV;
… …
3463 time_init (aTHX); 3503 time_init (aTHX);
3464 3504
3465 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); 3505 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3466#if CORO_JIT 3506#if CORO_JIT
3467 PUTBACK; 3507 PUTBACK;
3468 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3469 jit_init (aTHX); 3508 jit_init (aTHX);
3470 perl_eval_pv ("undef &Coro::State::_jit", 1);
3471 SPAGAIN; 3509 SPAGAIN;
3472#endif 3510#endif
3473} 3511}
3474 3512
3475SV * 3513SV *
… …
3484void 3522void
3485transfer (...) 3523transfer (...)
3486 PROTOTYPE: $$ 3524 PROTOTYPE: $$
3487 CODE: 3525 CODE:
3488 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3526 CORO_EXECUTE_SLF_XS (slf_init_transfer);
3489
3490void
3491_exit (int code)
3492 PROTOTYPE: $
3493 CODE:
3494 _exit (code);
3495 3527
3496SV * 3528SV *
3497clone (Coro::State coro) 3529clone (Coro::State coro)
3498 CODE: 3530 CODE:
3499{ 3531{
… …
3554void 3586void
3555list () 3587list ()
3556 PROTOTYPE: 3588 PROTOTYPE:
3557 PPCODE: 3589 PPCODE:
3558{ 3590{
3559 struct coro *coro; 3591 struct coro *coro;
3560 for (coro = coro_first; coro; coro = coro->next) 3592 for (coro = coro_first; coro; coro = coro->next)
3561 if (coro->hv) 3593 if (coro->hv)
3562 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 3594 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
3563} 3595}
3564 3596
… …
3628 RETVAL = boolSV (coro->flags & ix); 3660 RETVAL = boolSV (coro->flags & ix);
3629 OUTPUT: 3661 OUTPUT:
3630 RETVAL 3662 RETVAL
3631 3663
3632void 3664void
3633throw (Coro::State self, SV *exception = &PL_sv_undef) 3665throw (SV *self, SV *exception = &PL_sv_undef)
3634 PROTOTYPE: $;$ 3666 PROTOTYPE: $;$
3635 CODE: 3667 CODE:
3636{ 3668{
3669 struct coro *coro = SvSTATE (self);
3637 struct coro *current = SvSTATE_current; 3670 struct coro *current = SvSTATE_current;
3638 SV **exceptionp = self == current ? &CORO_THROW : &self->except; 3671 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
3639 SvREFCNT_dec (*exceptionp); 3672 SvREFCNT_dec (*exceptionp);
3640 SvGETMAGIC (exception); 3673 SvGETMAGIC (exception);
3641 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0; 3674 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3675
3676 api_ready (aTHX_ self);
3642} 3677}
3643 3678
3644void 3679void
3645api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3680api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3646 PROTOTYPE: $;$ 3681 PROTOTYPE: $;$
… …
3723 3758
3724void 3759void
3725times (Coro::State self) 3760times (Coro::State self)
3726 PPCODE: 3761 PPCODE:
3727{ 3762{
3728 struct coro *current = SvSTATE (coro_current); 3763 struct coro *current = SvSTATE (coro_current);
3729 3764
3730 if (ecb_expect_false (current == self)) 3765 if (ecb_expect_false (current == self))
3731 { 3766 {
3732 coro_times_update (); 3767 coro_times_update ();
3733 coro_times_add (SvSTATE (coro_current)); 3768 coro_times_add (SvSTATE (coro_current));
… …
3776 3811
3777 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3812 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3778 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3813 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3779 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3814 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3780 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */ 3815 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3781 3816
3782 coro_stash = gv_stashpv ("Coro", TRUE); 3817 coro_stash = gv_stashpv ("Coro", TRUE);
3783 3818
3784 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); 3819 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3785 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); 3820 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3786 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); 3821 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
… …
4008 on_leave = 1 4043 on_leave = 1
4009 PROTOTYPE: & 4044 PROTOTYPE: &
4010 CODE: 4045 CODE:
4011{ 4046{
4012 struct coro *coro = SvSTATE_current; 4047 struct coro *coro = SvSTATE_current;
4013 AV **avp = ix ? &coro->on_leave : &coro->on_enter; 4048 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
4014 4049
4015 block = s_get_cv_croak (block); 4050 block = s_get_cv_croak (block);
4016 4051
4017 if (!*avp) 4052 if (!*avp)
4018 *avp = newAV (); 4053 *avp = newAV ();
… …
4038 4073
4039SV * 4074SV *
4040new (SV *klass, SV *count = 0) 4075new (SV *klass, SV *count = 0)
4041 CODE: 4076 CODE:
4042{ 4077{
4043 int semcnt = 1; 4078 int semcnt = 1;
4044 4079
4045 if (count) 4080 if (count)
4046 { 4081 {
4047 SvGETMAGIC (count); 4082 SvGETMAGIC (count);
4048 4083
… …
4108 XSRETURN_NO; 4143 XSRETURN_NO;
4109} 4144}
4110 4145
4111void 4146void
4112waiters (SV *self) 4147waiters (SV *self)
4113 PPCODE: 4148 PPCODE:
4114{ 4149{
4115 AV *av = (AV *)SvRV (self); 4150 AV *av = (AV *)SvRV (self);
4116 int wcount = AvFILLp (av) + 1 - 1; 4151 int wcount = AvFILLp (av) + 1 - 1;
4117 4152
4118 if (GIMME_V == G_SCALAR) 4153 if (GIMME_V == G_SCALAR)
… …
4127} 4162}
4128 4163
4129MODULE = Coro::State PACKAGE = Coro::SemaphoreSet 4164MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
4130 4165
4131void 4166void
4132_may_delete (SV *sem, int count, int extra_refs) 4167_may_delete (SV *sem, int count, unsigned int extra_refs)
4133 PPCODE: 4168 PPCODE:
4134{ 4169{
4135 AV *av = (AV *)SvRV (sem); 4170 AV *av = (AV *)SvRV (sem);
4136 4171
4137 if (SvREFCNT ((SV *)av) == 1 + extra_refs 4172 if (SvREFCNT ((SV *)av) == 1 + extra_refs
4138 && AvFILLp (av) == 0 /* no waiters, just count */ 4173 && AvFILLp (av) == 0 /* no waiters, just count */
4139 && SvIV (AvARRAY (av)[0]) == count) 4174 && SvIV (AvARRAY (av)[0]) == count)
4140 XSRETURN_YES; 4175 XSRETURN_YES;
… …
4161 4196
4162void 4197void
4163broadcast (SV *self) 4198broadcast (SV *self)
4164 CODE: 4199 CODE:
4165{ 4200{
4166 AV *av = (AV *)SvRV (self); 4201 AV *av = (AV *)SvRV (self);
4167 coro_signal_wake (aTHX_ av, AvFILLp (av)); 4202 coro_signal_wake (aTHX_ av, AvFILLp (av));
4168} 4203}
4169 4204
4170void 4205void
4171send (SV *self) 4206send (SV *self)
… …
4179 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ 4214 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
4180} 4215}
4181 4216
4182IV 4217IV
4183awaited (SV *self) 4218awaited (SV *self)
4184 CODE: 4219 CODE:
4185 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; 4220 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
4186 OUTPUT: 4221 OUTPUT:
4187 RETVAL 4222 RETVAL
4188 4223
4189 4224
… …
4194 4229
4195void 4230void
4196_schedule (...) 4231_schedule (...)
4197 CODE: 4232 CODE:
4198{ 4233{
4199 static int incede; 4234 static int incede;
4200 4235
4201 api_cede_notself (aTHX); 4236 api_cede_notself (aTHX);
4202 4237
4203 ++incede; 4238 ++incede;
4204 while (coro_nready >= incede && api_cede (aTHX)) 4239 while (coro_nready >= incede && api_cede (aTHX))
… …
4248 { 4283 {
4249 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; 4284 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4250 coro_old_pp_sselect = 0; 4285 coro_old_pp_sselect = 0;
4251 } 4286 }
4252 4287
4288MODULE = Coro::State PACKAGE = Coro::Util
4289
4290void
4291_exit (int code)
4292 CODE:
4293 _exit (code);
4294
4295NV
4296time ()
4297 CODE:
4298 RETVAL = nvtime (aTHX);
4299 OUTPUT:
4300 RETVAL
4301
4302NV
4303gettimeofday ()
4304 PPCODE:
4305{
4306 UV tv [2];
4307 u2time (aTHX_ tv);
4308 EXTEND (SP, 2);
4309 PUSHs (sv_2mortal (newSVuv (tv [0])));
4310 PUSHs (sv_2mortal (newSVuv (tv [1])));
4311}
4312

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