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Comparing Coro/Coro/State.xs (file contents):
Revision 1.406 by root, Sat Jun 11 13:49:00 2011 UTC vs.
Revision 1.425 by root, Wed Dec 5 00:14:22 2012 UTC

… …
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
17#include "ecb.h" 19#include "ecb.h"
18 20
19#include <stddef.h> 21#include <stddef.h>
20#include <stdio.h> 22#include <stdio.h>
21#include <errno.h> 23#include <errno.h>
22#include <assert.h> 24#include <assert.h>
23 25
24#ifndef SVs_PADSTALE 26#ifndef SVs_PADSTALE
25# define SVs_PADSTALE 0 27# define SVs_PADSTALE 0
28#endif
29
30#ifdef PadARRAY
31# define NEWPADAPI
32# define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *))
33#else
34typedef AV PADNAMELIST;
35# if !PERL_VERSION_ATLEAST(5,8,0)
36typedef AV PADLIST;
37typedef AV PAD;
38# endif
39# define PadlistARRAY(pl) ((PAD **)AvARRAY (pl))
40# define PadlistMAX(pl) AvFILLp (pl)
41# define PadlistNAMES(pl) (*PadlistARRAY (pl))
42# define PadARRAY AvARRAY
43# define PadMAX AvFILLp
44# define newPADLIST(var) ((var) = newAV (), av_extend (var, 1))
26#endif 45#endif
27 46
28#if defined(_WIN32) 47#if defined(_WIN32)
29# undef HAS_GETTIMEOFDAY 48# undef HAS_GETTIMEOFDAY
30# undef setjmp 49# undef setjmp
… …
33# define setjmp _setjmp /* deep magic */ 52# define setjmp _setjmp /* deep magic */
34#else 53#else
35# include <inttypes.h> /* most portable stdint.h */ 54# include <inttypes.h> /* most portable stdint.h */
36#endif 55#endif
37 56
38#ifdef HAVE_MMAP 57#if HAVE_MMAP
39# include <unistd.h> 58# include <unistd.h>
40# include <sys/mman.h> 59# include <sys/mman.h>
41# ifndef MAP_ANONYMOUS 60# ifndef MAP_ANONYMOUS
42# ifdef MAP_ANON 61# ifdef MAP_ANON
43# define MAP_ANONYMOUS MAP_ANON 62# define MAP_ANONYMOUS MAP_ANON
… …
63#endif 82#endif
64 83
65/* the maximum number of idle cctx that will be pooled */ 84/* the maximum number of idle cctx that will be pooled */
66static int cctx_max_idle = 4; 85static int cctx_max_idle = 4;
67 86
87#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)
88# define HAS_SCOPESTACK_NAME 1
89#endif
90
68#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 91#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
69# undef CORO_STACKGUARD 92# undef CORO_STACKGUARD
70#endif 93#endif
71 94
72#ifndef CORO_STACKGUARD 95#ifndef CORO_STACKGUARD
… …
97# if CORO_PTHREAD 120# if CORO_PTHREAD
98static void *coro_thx; 121static void *coro_thx;
99# endif 122# endif
100#endif 123#endif
101 124
102/* used in state.h */
103#define VAR(name,type) VARx(name, PL_ ## name, type)
104
105#ifdef __linux 125#ifdef __linux
106# include <time.h> /* for timespec */ 126# include <time.h> /* for timespec */
107# include <syscall.h> /* for SYS_* */ 127# include <syscall.h> /* for SYS_* */
108# ifdef SYS_clock_gettime 128# ifdef SYS_clock_gettime
109# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 129# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
… …
177 void *sptr; 197 void *sptr;
178 size_t ssize; 198 size_t ssize;
179 199
180 /* cpu state */ 200 /* cpu state */
181 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 201 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
202#ifndef NDEBUG
182 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ 203 JMPENV *idle_te; /* same as idle_sp, but for top_env */
204#endif
183 JMPENV *top_env; 205 JMPENV *top_env;
184 coro_context cctx; 206 coro_context cctx;
185 207
186 U32 gen; 208 U32 gen;
187#if CORO_USE_VALGRIND 209#if CORO_USE_VALGRIND
… …
207}; 229};
208 230
209/* the structure where most of the perl state is stored, overlaid on the cxstack */ 231/* the structure where most of the perl state is stored, overlaid on the cxstack */
210typedef struct 232typedef struct
211{ 233{
212#define VARx(name,expr,type) type name; 234 #define VARx(name,expr,type) type name;
213# include "state.h" 235 #include "state.h"
214#undef VARx
215} perl_slots; 236} perl_slots;
216 237
217// how many context stack entries do we need for perl_slots 238/* 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)) 239#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
219 240
220/* this is a structure representing a perl-level coroutine */ 241/* this is a structure representing a perl-level coroutine */
221struct coro 242struct coro
222{ 243{
… …
291#define coro_nready coroapi.nready 312#define coro_nready coroapi.nready
292 313
293/** JIT *********************************************************************/ 314/** JIT *********************************************************************/
294 315
295#if CORO_JIT 316#if CORO_JIT
317 /* APPLE doesn't have HAVE_MMAP though */
318 #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)
296 #ifndef CORO_JIT_TYPE 319 #ifndef CORO_JIT_TYPE
297 #if __x86_64 && (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris) 320 #if __x86_64 && CORO_JIT_UNIXY
298 #define CORO_JIT_TYPE "amd64-unix" 321 #define CORO_JIT_TYPE "amd64-unix"
299 typedef void (*load_save_perl_slots_type)(perl_slots *); 322 #elif __i386 && CORO_JIT_UNIXY
300 #else 323 #define CORO_JIT_TYPE "x86-unix"
301 #undef CORO_JIT
302 #endif 324 #endif
303 #endif 325 #endif
304#endif 326#endif
305 327
328#if !defined(CORO_JIT_TYPE) || !HAVE_MMAP
329 #undef CORO_JIT
330#endif
331
306#if CORO_JIT 332#if CORO_JIT
333 typedef void (*load_save_perl_slots_type)(perl_slots *);
307static load_save_perl_slots_type load_perl_slots, save_perl_slots; 334 static load_save_perl_slots_type load_perl_slots, save_perl_slots;
308#endif 335#endif
309 336
310/** Coro::Select ************************************************************/ 337/** Coro::Select ************************************************************/
311 338
312static OP *(*coro_old_pp_sselect) (pTHX); 339static OP *(*coro_old_pp_sselect) (pTHX);
… …
329 356
330/** time stuff **************************************************************/ 357/** time stuff **************************************************************/
331 358
332#ifdef HAS_GETTIMEOFDAY 359#ifdef HAS_GETTIMEOFDAY
333 360
334ECB_INLINE void 361ecb_inline void
335coro_u2time (pTHX_ UV ret[2]) 362coro_u2time (pTHX_ UV ret[2])
336{ 363{
337 struct timeval tv; 364 struct timeval tv;
338 gettimeofday (&tv, 0); 365 gettimeofday (&tv, 0);
339 366
340 ret [0] = tv.tv_sec; 367 ret [0] = tv.tv_sec;
341 ret [1] = tv.tv_usec; 368 ret [1] = tv.tv_usec;
342} 369}
343 370
344ECB_INLINE double 371ecb_inline double
345coro_nvtime () 372coro_nvtime (void)
346{ 373{
347 struct timeval tv; 374 struct timeval tv;
348 gettimeofday (&tv, 0); 375 gettimeofday (&tv, 0);
349 376
350 return tv.tv_sec + tv.tv_usec * 1e-6; 377 return tv.tv_sec + tv.tv_usec * 1e-6;
351} 378}
352 379
353ECB_INLINE void 380ecb_inline void
354time_init (pTHX) 381time_init (pTHX)
355{ 382{
356 nvtime = coro_nvtime; 383 nvtime = coro_nvtime;
357 u2time = coro_u2time; 384 u2time = coro_u2time;
358} 385}
359 386
360#else 387#else
361 388
362ECB_INLINE void 389ecb_inline void
363time_init (pTHX) 390time_init (pTHX)
364{ 391{
365 SV **svp; 392 SV **svp;
366 393
367 require_pv ("Time/HiRes.pm"); 394 require_pv ("Time/HiRes.pm");
368 395
369 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); 396 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
370 397
371 if (!svp) croak ("Time::HiRes is required, but missing. Caught"); 398 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
372 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught"); 399 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
373 400
… …
409 get_hv (name, create); 436 get_hv (name, create);
410#endif 437#endif
411 return get_hv (name, create); 438 return get_hv (name, create);
412} 439}
413 440
414ECB_INLINE void 441ecb_inline void
415coro_times_update () 442coro_times_update (void)
416{ 443{
417#ifdef coro_clock_gettime 444#ifdef coro_clock_gettime
418 struct timespec ts; 445 struct timespec ts;
419 446
420 ts.tv_sec = ts.tv_nsec = 0; 447 ts.tv_sec = ts.tv_nsec = 0;
… …
432 time_real [0] = tv [0]; 459 time_real [0] = tv [0];
433 time_real [1] = tv [1] * 1000; 460 time_real [1] = tv [1] * 1000;
434#endif 461#endif
435} 462}
436 463
437ECB_INLINE void 464ecb_inline void
438coro_times_add (struct coro *c) 465coro_times_add (struct coro *c)
439{ 466{
440 c->t_real [1] += time_real [1]; 467 c->t_real [1] += time_real [1];
441 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } 468 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
442 c->t_real [0] += time_real [0]; 469 c->t_real [0] += time_real [0];
… …
444 c->t_cpu [1] += time_cpu [1]; 471 c->t_cpu [1] += time_cpu [1];
445 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } 472 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
446 c->t_cpu [0] += time_cpu [0]; 473 c->t_cpu [0] += time_cpu [0];
447} 474}
448 475
449ECB_INLINE void 476ecb_inline void
450coro_times_sub (struct coro *c) 477coro_times_sub (struct coro *c)
451{ 478{
452 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } 479 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
453 c->t_real [1] -= time_real [1]; 480 c->t_real [1] -= time_real [1];
454 c->t_real [0] -= time_real [0]; 481 c->t_real [0] -= time_real [0];
… …
475 : 0) 502 : 0)
476 503
477#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) 504#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
478#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) 505#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
479 506
480ECB_INLINE MAGIC * 507ecb_inline MAGIC *
481SvSTATEhv_p (pTHX_ SV *coro) 508SvSTATEhv_p (pTHX_ SV *coro)
482{ 509{
483 MAGIC *mg; 510 MAGIC *mg;
484 511
485 if (ecb_expect_true ( 512 if (ecb_expect_true (
… …
490 return mg; 517 return mg;
491 518
492 return 0; 519 return 0;
493} 520}
494 521
495ECB_INLINE struct coro * 522ecb_inline struct coro *
496SvSTATE_ (pTHX_ SV *coro) 523SvSTATE_ (pTHX_ SV *coro)
497{ 524{
498 MAGIC *mg; 525 MAGIC *mg;
499 526
500 if (SvROK (coro)) 527 if (SvROK (coro))
… …
514#define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) 541#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
515 542
516/*****************************************************************************/ 543/*****************************************************************************/
517/* padlist management and caching */ 544/* padlist management and caching */
518 545
519ECB_INLINE AV * 546ecb_inline PADLIST *
520coro_derive_padlist (pTHX_ CV *cv) 547coro_derive_padlist (pTHX_ CV *cv)
521{ 548{
522 AV *padlist = CvPADLIST (cv); 549 PADLIST *padlist = CvPADLIST (cv);
523 AV *newpadlist, *newpad; 550 PADLIST *newpadlist;
551 PAD *newpad;
552 PADOFFSET const off = PadlistMAX (padlist) + 1;
524 553
525 newpadlist = newAV (); 554 newPADLIST(newpadlist);
555#if !PERL_VERSION_ATLEAST(5,15,3)
556 /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */
526 AvREAL_off (newpadlist); 557 AvREAL_off (newpadlist);
558#endif
527#if PERL_VERSION_ATLEAST (5,10,0) 559#if PERL_VERSION_ATLEAST (5,10,0)
528 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); 560 Perl_pad_push (aTHX_ padlist, off);
529#else 561#else
530 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 562 Perl_pad_push (aTHX_ padlist, off, 1);
531#endif 563#endif
532 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 564 newpad = PadlistARRAY (padlist)[off];
533 --AvFILLp (padlist); 565 PadlistMAX (padlist) = off - 1;
534 566
535 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); 567 /* Already extended to 2 elements by newPADLIST. */
536 av_store (newpadlist, 1, (SV *)newpad); 568 PadlistMAX (newpadlist) = 1;
569 PadlistNAMES (newpadlist) = (PADNAMELIST *)SvREFCNT_inc_NN (PadlistNAMES (padlist));
570 PadlistARRAY (newpadlist)[1] = newpad;
537 571
538 return newpadlist; 572 return newpadlist;
539} 573}
540 574
541ECB_INLINE void 575ecb_inline void
542free_padlist (pTHX_ AV *padlist) 576free_padlist (pTHX_ PADLIST *padlist)
543{ 577{
544 /* may be during global destruction */ 578 /* may be during global destruction */
545 if (!IN_DESTRUCT) 579 if (!IN_DESTRUCT)
546 { 580 {
547 I32 i = AvFILLp (padlist); 581 I32 i = PadlistMAX (padlist);
548 582
549 while (i > 0) /* special-case index 0 */ 583 while (i > 0) /* special-case index 0 */
550 { 584 {
551 /* we try to be extra-careful here */ 585 /* we try to be extra-careful here */
552 AV *av = (AV *)AvARRAY (padlist)[i--]; 586 PAD *pad = PadlistARRAY (padlist)[i--];
553 I32 j = AvFILLp (av); 587 I32 j = PadMAX (pad);
554 588
555 while (j >= 0) 589 while (j >= 0)
556 SvREFCNT_dec (AvARRAY (av)[j--]); 590 SvREFCNT_dec (PadARRAY (pad)[j--]);
557 591
558 AvFILLp (av) = -1; 592 PadMAX (pad) = -1;
559 SvREFCNT_dec (av); 593 SvREFCNT_dec (pad);
560 } 594 }
561 595
562 SvREFCNT_dec (AvARRAY (padlist)[0]); 596 SvREFCNT_dec (PadlistNAMES (padlist));
563 597
598#ifdef NEWPADAPI
599 Safefree (PadlistARRAY (padlist));
600 Safefree (padlist);
601#else
564 AvFILLp (padlist) = -1; 602 AvFILLp (padlist) = -1;
603 AvREAL_off (padlist);
565 SvREFCNT_dec ((SV*)padlist); 604 SvREFCNT_dec ((SV*)padlist);
605#endif
566 } 606 }
567} 607}
568 608
569static int 609static int
570coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 610coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
571{ 611{
572 AV *padlist; 612 PADLIST *padlist;
573 AV *av = (AV *)mg->mg_obj; 613 PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t));
614 size_t len = *(size_t *)mg->mg_ptr;
574 615
575 /* perl manages to free our internal AV and _then_ call us */ 616 /* perl manages to free our internal AV and _then_ call us */
576 if (IN_DESTRUCT) 617 if (IN_DESTRUCT)
577 return 0; 618 return 0;
578 619
579 /* casting is fun. */ 620 while (len--)
580 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
581 free_padlist (aTHX_ padlist); 621 free_padlist (aTHX_ padlists[len]);
582
583 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
584 622
585 return 0; 623 return 0;
586} 624}
587 625
588static MGVTBL coro_cv_vtbl = { 626static MGVTBL coro_cv_vtbl = {
589 0, 0, 0, 0, 627 0, 0, 0, 0,
590 coro_cv_free 628 coro_cv_free
591}; 629};
592 630
593/* the next two functions merely cache the padlists */ 631/* the next two functions merely cache the padlists */
594ECB_INLINE void 632ecb_inline void
595get_padlist (pTHX_ CV *cv) 633get_padlist (pTHX_ CV *cv)
596{ 634{
597 MAGIC *mg = CORO_MAGIC_cv (cv); 635 MAGIC *mg = CORO_MAGIC_cv (cv);
598 AV *av; 636 size_t *lenp;
599 637
600 if (ecb_expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 638 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
601 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 639 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
602 else 640 else
603 { 641 {
604#if CORO_PREFER_PERL_FUNCTIONS 642#if CORO_PREFER_PERL_FUNCTIONS
605 /* this is probably cleaner? but also slower! */ 643 /* this is probably cleaner? but also slower! */
606 /* in practise, it seems to be less stable */ 644 /* in practise, it seems to be less stable */
… …
612 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); 650 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
613#endif 651#endif
614 } 652 }
615} 653}
616 654
617ECB_INLINE void 655ecb_inline void
618put_padlist (pTHX_ CV *cv) 656put_padlist (pTHX_ CV *cv)
619{ 657{
620 MAGIC *mg = CORO_MAGIC_cv (cv); 658 MAGIC *mg = CORO_MAGIC_cv (cv);
621 AV *av;
622 659
623 if (ecb_expect_false (!mg)) 660 if (ecb_expect_false (!mg))
661 {
624 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 662 mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
663 Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char);
664 mg->mg_len = 1; /* so mg_free frees mg_ptr */
665 }
666 else
667 Renew (mg->mg_ptr,
668 sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *),
669 char);
625 670
626 av = (AV *)mg->mg_obj; 671 ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
627
628 if (ecb_expect_false (AvFILLp (av) >= AvMAX (av)))
629 av_extend (av, AvFILLp (av) + 1);
630
631 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
632} 672}
633 673
634/** load & save, init *******************************************************/ 674/** load & save, init *******************************************************/
635 675
676ecb_inline void
677swap_sv (SV *a, SV *b)
678{
679 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
680 SV tmp;
681
682 /* swap sv_any */
683 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
684
685 /* swap sv_flags */
686 SvFLAGS (&tmp) = SvFLAGS (a);
687 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
688 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
689
690#if PERL_VERSION_ATLEAST (5,10,0)
691 /* perl 5.10 and later complicates this _quite_ a bit, but it also
692 * is much faster, so no quarrels here. alternatively, we could
693 * sv_upgrade to avoid this.
694 */
695 {
696 /* swap sv_u */
697 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
698
699 /* if SvANY points to the head, we need to adjust the pointers,
700 * as the pointer for a still points to b, and maybe vice versa.
701 */
702 #define svany_in_head(type) \
703 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
704
705 if (svany_in_head (SvTYPE (a)))
706 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
707
708 if (svany_in_head (SvTYPE (b)))
709 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
710 }
711#endif
712}
713
636/* swap sv heads, at least logically */ 714/* swap sv heads, at least logically */
637static void 715static void
638swap_svs (pTHX_ Coro__State c) 716swap_svs (pTHX_ Coro__State c)
639{ 717{
640 int i; 718 int i;
641 719
642 for (i = 0; i <= AvFILLp (c->swap_sv); ) 720 for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
643 { 721 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
644 SV *a = AvARRAY (c->swap_sv)[i++];
645 SV *b = AvARRAY (c->swap_sv)[i++];
646
647 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
648 SV tmp;
649
650 /* swap sv_any */
651 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
652
653 /* swap sv_flags */
654 SvFLAGS (&tmp) = SvFLAGS (a);
655 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
656 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
657
658#if PERL_VERSION_ATLEAST (5,10,0)
659 /* perl 5.10 complicates this _quite_ a bit, but it also is
660 * much faster, so no quarrels here. alternatively, we could
661 * sv_upgrade to avoid this.
662 */
663 {
664 /* swap sv_u */
665 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
666
667 /* if SvANY points to the head, we need to adjust the pointers,
668 * as the pointer for a still points to b, and maybe vice versa.
669 */
670 #define svany_in_head(type) \
671 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
672
673 if (svany_in_head (SvTYPE (a)))
674 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
675
676 if (svany_in_head (SvTYPE (b)))
677 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
678 }
679#endif
680 }
681} 722}
682 723
683#define SWAP_SVS(coro) \ 724#define SWAP_SVS(coro) \
684 if (ecb_expect_false ((coro)->swap_sv)) \ 725 if (ecb_expect_false ((coro)->swap_sv)) \
685 swap_svs (aTHX_ (coro)) 726 swap_svs (aTHX_ (coro))
… …
697 738
698#if CORO_JIT 739#if CORO_JIT
699 load_perl_slots (slot); 740 load_perl_slots (slot);
700#else 741#else
701 #define VARx(name,expr,type) expr = slot->name; 742 #define VARx(name,expr,type) expr = slot->name;
702 # include "state.h" 743 #include "state.h"
703 #undef VARx
704#endif 744#endif
705 745
706 { 746 {
707 dSP; 747 dSP;
708 748
… …
711 /* now do the ugly restore mess */ 751 /* now do the ugly restore mess */
712 while (ecb_expect_true (cv = (CV *)POPs)) 752 while (ecb_expect_true (cv = (CV *)POPs))
713 { 753 {
714 put_padlist (aTHX_ cv); /* mark this padlist as available */ 754 put_padlist (aTHX_ cv); /* mark this padlist as available */
715 CvDEPTH (cv) = PTR2IV (POPs); 755 CvDEPTH (cv) = PTR2IV (POPs);
716 CvPADLIST (cv) = (AV *)POPs; 756 CvPADLIST (cv) = (PADLIST *)POPs;
717 } 757 }
718 758
719 PUTBACK; 759 PUTBACK;
720 } 760 }
721 761
… …
811 851
812 PUTBACK; 852 PUTBACK;
813 } 853 }
814 854
815 /* allocate some space on the context stack for our purposes */ 855 /* allocate some space on the context stack for our purposes */
816 if (ecb_expect_false (cxstack_ix + SLOT_COUNT >= cxstack_max)) 856 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
817 { 857 {
818 unsigned int i; 858 unsigned int i;
819 859
820 for (i = 0; i < SLOT_COUNT; ++i) 860 for (i = 0; i < SLOT_COUNT; ++i)
821 CXINC; 861 CXINC;
… …
830 870
831#if CORO_JIT 871#if CORO_JIT
832 save_perl_slots (slot); 872 save_perl_slots (slot);
833#else 873#else
834 #define VARx(name,expr,type) slot->name = expr; 874 #define VARx(name,expr,type) slot->name = expr;
835 # include "state.h" 875 #include "state.h"
836 #undef VARx
837#endif 876#endif
838 } 877 }
839} 878}
840 879
841/* 880/*
… …
873#endif 912#endif
874 913
875 New(54,PL_scopestack,8,I32); 914 New(54,PL_scopestack,8,I32);
876 PL_scopestack_ix = 0; 915 PL_scopestack_ix = 0;
877 PL_scopestack_max = 8; 916 PL_scopestack_max = 8;
917#if HAS_SCOPESTACK_NAME
918 New(54,PL_scopestack_name,8,const char*);
919#endif
878 920
879 New(54,PL_savestack,24,ANY); 921 New(54,PL_savestack,24,ANY);
880 PL_savestack_ix = 0; 922 PL_savestack_ix = 0;
881 PL_savestack_max = 24; 923 PL_savestack_max = 24;
882 924
… …
910 } 952 }
911 953
912 Safefree (PL_tmps_stack); 954 Safefree (PL_tmps_stack);
913 Safefree (PL_markstack); 955 Safefree (PL_markstack);
914 Safefree (PL_scopestack); 956 Safefree (PL_scopestack);
957#if HAS_SCOPESTACK_NAME
958 Safefree (PL_scopestack_name);
959#endif
915 Safefree (PL_savestack); 960 Safefree (PL_savestack);
916#if !PERL_VERSION_ATLEAST (5,10,0) 961#if !PERL_VERSION_ATLEAST (5,10,0)
917 Safefree (PL_retstack); 962 Safefree (PL_retstack);
918#endif 963#endif
919} 964}
… …
979 { 1024 {
980 SV **svp = 0; 1025 SV **svp = 0;
981 1026
982 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 1027 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
983 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1028 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
984 1029
985 if (svp) 1030 if (svp)
986 { 1031 {
987 sv_setsv (sv, *svp ? *svp : &PL_sv_undef); 1032 SV *ssv;
1033
1034 if (!*svp)
1035 ssv = &PL_sv_undef;
1036 else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1037 ssv = sv_2mortal (newRV_inc (*svp));
1038 else
1039 ssv = *svp;
1040
1041 sv_setsv (sv, ssv);
988 return 0; 1042 return 0;
989 } 1043 }
990 } 1044 }
991 1045
992 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1046 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
… …
1086 PL_hints = 0; 1140 PL_hints = 0;
1087 1141
1088 /* recreate the die/warn hooks */ 1142 /* recreate the die/warn hooks */
1089 PL_diehook = SvREFCNT_inc (rv_diehook); 1143 PL_diehook = SvREFCNT_inc (rv_diehook);
1090 PL_warnhook = SvREFCNT_inc (rv_warnhook); 1144 PL_warnhook = SvREFCNT_inc (rv_warnhook);
1091 1145
1092 GvSV (PL_defgv) = newSV (0); 1146 GvSV (PL_defgv) = newSV (0);
1093 GvAV (PL_defgv) = coro->args; coro->args = 0; 1147 GvAV (PL_defgv) = coro->args; coro->args = 0;
1094 GvSV (PL_errgv) = newSV (0); 1148 GvSV (PL_errgv) = newSV (0);
1095 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1149 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1096 GvHV (PL_hintgv) = 0; 1150 GvHV (PL_hintgv) = 0;
… …
1184 /* restore swapped sv's */ 1238 /* restore swapped sv's */
1185 SWAP_SVS (coro); 1239 SWAP_SVS (coro);
1186 1240
1187 coro_destruct_stacks (aTHX); 1241 coro_destruct_stacks (aTHX);
1188 1242
1189 // now save some sv's to be free'd later 1243 /* now save some sv's to be free'd later */
1190 svf [0] = GvSV (PL_defgv); 1244 svf [0] = GvSV (PL_defgv);
1191 svf [1] = (SV *)GvAV (PL_defgv); 1245 svf [1] = (SV *)GvAV (PL_defgv);
1192 svf [2] = GvSV (PL_errgv); 1246 svf [2] = GvSV (PL_errgv);
1193 svf [3] = (SV *)PL_defoutgv; 1247 svf [3] = (SV *)PL_defoutgv;
1194 svf [4] = PL_rs; 1248 svf [4] = PL_rs;
… …
1214 SvREFCNT_dec (coro->invoke_cb); 1268 SvREFCNT_dec (coro->invoke_cb);
1215 SvREFCNT_dec (coro->invoke_av); 1269 SvREFCNT_dec (coro->invoke_av);
1216 } 1270 }
1217} 1271}
1218 1272
1219ECB_INLINE void 1273ecb_inline void
1220free_coro_mortal (pTHX) 1274free_coro_mortal (pTHX)
1221{ 1275{
1222 if (ecb_expect_true (coro_mortal)) 1276 if (ecb_expect_true (coro_mortal))
1223 { 1277 {
1224 SvREFCNT_dec ((SV *)coro_mortal); 1278 SvREFCNT_dec ((SV *)coro_mortal);
… …
1383 slf_frame.prepare = slf_prepare_set_stacklevel; 1437 slf_frame.prepare = slf_prepare_set_stacklevel;
1384 slf_frame.check = slf_check_set_stacklevel; 1438 slf_frame.check = slf_check_set_stacklevel;
1385} 1439}
1386 1440
1387/* the tail of transfer: execute stuff we can only do after a transfer */ 1441/* the tail of transfer: execute stuff we can only do after a transfer */
1388ECB_INLINE void 1442ecb_inline void
1389transfer_tail (pTHX) 1443transfer_tail (pTHX)
1390{ 1444{
1391 free_coro_mortal (aTHX); 1445 free_coro_mortal (aTHX);
1446}
1447
1448/* try to exit the same way perl's main function would do */
1449/* we do not bother resetting the environment or other things *7
1450/* that are not, uhm, essential */
1451/* this obviously also doesn't work when perl is embedded */
1452static void ecb_noinline ecb_cold
1453perlish_exit (pTHX)
1454{
1455 int exitstatus = perl_destruct (PL_curinterp);
1456 perl_free (PL_curinterp);
1457 exit (exitstatus);
1392} 1458}
1393 1459
1394/* 1460/*
1395 * this is a _very_ stripped down perl interpreter ;) 1461 * this is a _very_ stripped down perl interpreter ;)
1396 */ 1462 */
… …
1425 */ 1491 */
1426 1492
1427 /* 1493 /*
1428 * If perl-run returns we assume exit() was being called or the coro 1494 * If perl-run returns we assume exit() was being called or the coro
1429 * fell off the end, which seems to be the only valid (non-bug) 1495 * fell off the end, which seems to be the only valid (non-bug)
1430 * reason for perl_run to return. We try to exit by jumping to the 1496 * reason for perl_run to return. We try to mimic whatever perl is normally
1431 * bootstrap-time "top" top_env, as we cannot restore the "main" 1497 * doing in that case. YMMV.
1432 * coroutine as Coro has no such concept.
1433 * This actually isn't valid with the pthread backend, but OSes requiring
1434 * that backend are too broken to do it in a standards-compliant way.
1435 */ 1498 */
1436 PL_top_env = main_top_env; 1499 perlish_exit (aTHX);
1437 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1438 } 1500 }
1439} 1501}
1440 1502
1441static coro_cctx * 1503static coro_cctx *
1442cctx_new () 1504cctx_new (void)
1443{ 1505{
1444 coro_cctx *cctx; 1506 coro_cctx *cctx;
1445 1507
1446 ++cctx_count; 1508 ++cctx_count;
1447 New (0, cctx, 1, coro_cctx); 1509 New (0, cctx, 1, coro_cctx);
… …
1453 return cctx; 1515 return cctx;
1454} 1516}
1455 1517
1456/* create a new cctx only suitable as source */ 1518/* create a new cctx only suitable as source */
1457static coro_cctx * 1519static coro_cctx *
1458cctx_new_empty () 1520cctx_new_empty (void)
1459{ 1521{
1460 coro_cctx *cctx = cctx_new (); 1522 coro_cctx *cctx = cctx_new ();
1461 1523
1462 cctx->sptr = 0; 1524 cctx->sptr = 0;
1463 coro_create (&cctx->cctx, 0, 0, 0, 0); 1525 coro_create (&cctx->cctx, 0, 0, 0, 0);
… …
1465 return cctx; 1527 return cctx;
1466} 1528}
1467 1529
1468/* create a new cctx suitable as destination/running a perl interpreter */ 1530/* create a new cctx suitable as destination/running a perl interpreter */
1469static coro_cctx * 1531static coro_cctx *
1470cctx_new_run () 1532cctx_new_run (void)
1471{ 1533{
1472 coro_cctx *cctx = cctx_new (); 1534 coro_cctx *cctx = cctx_new ();
1473 void *stack_start; 1535 void *stack_start;
1474 size_t stack_size; 1536 size_t stack_size;
1475 1537
1476#if HAVE_MMAP 1538#if HAVE_MMAP
1477 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; 1539 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1478 /* mmap supposedly does allocate-on-write for us */ 1540 /* mmap supposedly does allocate-on-write for us */
1479 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 1541 cctx->sptr = mmap (0, cctx->ssize, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANONYMOUS, -1, 0);
1480 1542
1481 if (cctx->sptr != (void *)-1) 1543 if (cctx->sptr != (void *)-1)
1482 { 1544 {
1483 #if CORO_STACKGUARD 1545 #if CORO_STACKGUARD
1484 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); 1546 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
… …
1699 return; 1761 return;
1700 1762
1701 slf_destroy (aTHX_ coro); 1763 slf_destroy (aTHX_ coro);
1702 1764
1703 coro->flags |= CF_ZOMBIE; 1765 coro->flags |= CF_ZOMBIE;
1704 1766
1705 if (coro->flags & CF_READY) 1767 if (coro->flags & CF_READY)
1706 { 1768 {
1707 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1769 /* reduce nready, as destroying a ready coro effectively unreadies it */
1708 /* alternative: look through all ready queues and remove the coro */ 1770 /* alternative: look through all ready queues and remove the coro */
1709 --coro_nready; 1771 --coro_nready;
… …
1786 TRANSFER (ta, 1); 1848 TRANSFER (ta, 1);
1787} 1849}
1788 1850
1789/** Coro ********************************************************************/ 1851/** Coro ********************************************************************/
1790 1852
1791ECB_INLINE void 1853ecb_inline void
1792coro_enq (pTHX_ struct coro *coro) 1854coro_enq (pTHX_ struct coro *coro)
1793{ 1855{
1794 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; 1856 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1795 1857
1796 SvREFCNT_inc_NN (coro->hv); 1858 SvREFCNT_inc_NN (coro->hv);
… …
1798 coro->next_ready = 0; 1860 coro->next_ready = 0;
1799 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; 1861 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1800 ready [1] = coro; 1862 ready [1] = coro;
1801} 1863}
1802 1864
1803ECB_INLINE struct coro * 1865ecb_inline struct coro *
1804coro_deq (pTHX) 1866coro_deq (pTHX)
1805{ 1867{
1806 int prio; 1868 int prio;
1807 1869
1808 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) 1870 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
… …
1861{ 1923{
1862 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1924 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1863} 1925}
1864 1926
1865/* expects to own a reference to next->hv */ 1927/* expects to own a reference to next->hv */
1866ECB_INLINE void 1928ecb_inline void
1867prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1929prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1868{ 1930{
1869 SV *prev_sv = SvRV (coro_current); 1931 SV *prev_sv = SvRV (coro_current);
1870 1932
1871 ta->prev = SvSTATE_hv (prev_sv); 1933 ta->prev = SvSTATE_hv (prev_sv);
… …
1930 } 1992 }
1931 } 1993 }
1932 } 1994 }
1933} 1995}
1934 1996
1935ECB_INLINE void 1997ecb_inline void
1936prepare_cede (pTHX_ struct coro_transfer_args *ta) 1998prepare_cede (pTHX_ struct coro_transfer_args *ta)
1937{ 1999{
1938 api_ready (aTHX_ coro_current); 2000 api_ready (aTHX_ coro_current);
1939 prepare_schedule (aTHX_ ta); 2001 prepare_schedule (aTHX_ ta);
1940} 2002}
1941 2003
1942ECB_INLINE void 2004ecb_inline void
1943prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 2005prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1944{ 2006{
1945 SV *prev = SvRV (coro_current); 2007 SV *prev = SvRV (coro_current);
1946 2008
1947 if (coro_nready) 2009 if (coro_nready)
… …
2142 2204
2143static void 2205static void
2144coro_set_status (pTHX_ struct coro *coro, SV **arg, int items) 2206coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
2145{ 2207{
2146 AV *av; 2208 AV *av;
2147 2209
2148 if (coro->status) 2210 if (coro->status)
2149 { 2211 {
2150 av = coro->status; 2212 av = coro->status;
2151 av_clear (av); 2213 av_clear (av);
2152 } 2214 }
… …
2199 2261
2200 coro = SvSTATE (arg [0]); 2262 coro = SvSTATE (arg [0]);
2201 coro_hv = coro->hv; 2263 coro_hv = coro->hv;
2202 2264
2203 coro_set_status (aTHX_ coro, arg + 1, items - 1); 2265 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2204 2266
2205 if (ecb_expect_false (coro->flags & CF_NOCANCEL)) 2267 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2206 { 2268 {
2207 /* coro currently busy cancelling something, so just notify it */ 2269 /* coro currently busy cancelling something, so just notify it */
2208 coro->slf_frame.data = (void *)coro; 2270 coro->slf_frame.data = (void *)coro;
2209 2271
… …
2388 2450
2389static int 2451static int
2390slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) 2452slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
2391{ 2453{
2392 SV *data = (SV *)frame->data; 2454 SV *data = (SV *)frame->data;
2393 2455
2394 if (CORO_THROW) 2456 if (CORO_THROW)
2395 return 0; 2457 return 0;
2396 2458
2397 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2459 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2398 return 1; 2460 return 1;
… …
2434 cb = sv_2mortal (coro->rouse_cb); 2496 cb = sv_2mortal (coro->rouse_cb);
2435 coro->rouse_cb = 0; 2497 coro->rouse_cb = 0;
2436 } 2498 }
2437 2499
2438 if (!SvROK (cb) 2500 if (!SvROK (cb)
2439 || SvTYPE (SvRV (cb)) != SVt_PVCV 2501 || SvTYPE (SvRV (cb)) != SVt_PVCV
2440 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2502 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2441 croak ("Coro::rouse_wait called with illegal callback argument,"); 2503 croak ("Coro::rouse_wait called with illegal callback argument,");
2442 2504
2443 { 2505 {
2444 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ 2506 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
… …
2947 { 3009 {
2948 int i; 3010 int i;
2949 /* if we were woken up but can't down, we look through the whole */ 3011 /* if we were woken up but can't down, we look through the whole */
2950 /* waiters list and only add us if we aren't in there already */ 3012 /* waiters list and only add us if we aren't in there already */
2951 /* this avoids some degenerate memory usage cases */ 3013 /* this avoids some degenerate memory usage cases */
2952 for (i = AvFILLp (av); i > 0; --i) // i > 0 is not an off-by-one bug 3014 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2953 if (AvARRAY (av)[i] == coro_hv) 3015 if (AvARRAY (av)[i] == coro_hv)
2954 return 1; 3016 return 1;
2955 3017
2956 av_push (av, SvREFCNT_inc (coro_hv)); 3018 av_push (av, SvREFCNT_inc (coro_hv));
2957 return 1; 3019 return 1;
… …
3337#endif 3399#endif
3338 3400
3339#if CORO_JIT 3401#if CORO_JIT
3340 3402
3341static void ecb_noinline ecb_cold 3403static void ecb_noinline ecb_cold
3342pushav_3uv (pTHX_ UV a, UV b, UV c) 3404pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3343{ 3405{
3344 dSP; 3406 dSP;
3345 AV *av = newAV (); 3407 AV *av = newAV ();
3346 3408
3409 av_store (av, 3, newSVuv (d));
3347 av_store (av, 2, newSVuv (c)); 3410 av_store (av, 2, newSVuv (c));
3348 av_store (av, 1, newSVuv (b)); 3411 av_store (av, 1, newSVuv (b));
3349 av_store (av, 0, newSVuv (a)); 3412 av_store (av, 0, newSVuv (a));
3350 3413
3351 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); 3414 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
… …
3358{ 3421{
3359 dSP; 3422 dSP;
3360 SV *load, *save; 3423 SV *load, *save;
3361 char *map_base; 3424 char *map_base;
3362 char *load_ptr, *save_ptr; 3425 char *load_ptr, *save_ptr;
3363 STRLEN load_len, save_len; 3426 STRLEN load_len, save_len, map_len;
3364 int count; 3427 int count;
3365 3428
3429 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3430
3366 PUSHMARK (SP); 3431 PUSHMARK (SP);
3367 PUTBACK;
3368#define VARx(name,expr,type) pushav_3uv (aTHX_ (UV)&(expr), offsetof (perl_slots, name), sizeof (type)); 3432 #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3369# include "state.h" 3433 #include "state.h"
3370#undef VARx
3371 count = call_pv ("Coro::State::_jit", G_ARRAY); 3434 count = call_pv ("Coro::State::_jit", G_ARRAY);
3372 SPAGAIN; 3435 SPAGAIN;
3373 3436
3374 save = POPs; save_ptr = SvPVbyte (save, save_len); 3437 save = POPs; save_ptr = SvPVbyte (save, save_len);
3375 load = POPs; load_ptr = SvPVbyte (load, load_len); 3438 load = POPs; load_ptr = SvPVbyte (load, load_len);
3376 3439
3440 map_len = load_len + save_len + 16;
3441
3377 map_base = mmap (0, load_len + save_len + 16, PROT_EXEC | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); 3442 map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3378 3443
3379 assert (("Coro: unable mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED)); 3444 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3380 3445
3381 load_perl_slots = (load_save_perl_slots_type)map_base; 3446 load_perl_slots = (load_save_perl_slots_type)map_base;
3382 memcpy (map_base, load_ptr, load_len); 3447 memcpy (map_base, load_ptr, load_len);
3383 3448
3384 map_base += (load_len + 15) & ~15; 3449 map_base += (load_len + 15) & ~15;
3385 3450
3386 save_perl_slots = (load_save_perl_slots_type)map_base; 3451 save_perl_slots = (load_save_perl_slots_type)map_base;
3387 memcpy (map_base, save_ptr, save_len); 3452 memcpy (map_base, save_ptr, save_len);
3453
3454 /* we are good citizens and try to make the page read-only, so the evil evil */
3455 /* hackers might have it a bit more difficult */
3456 mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
3457
3458 PUTBACK;
3459 eval_pv ("undef &Coro::State::_jit", 1);
3388} 3460}
3389 3461
3390#endif 3462#endif
3391 3463
3392MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3464MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
… …
3460 time_init (aTHX); 3532 time_init (aTHX);
3461 3533
3462 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); 3534 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3463#if CORO_JIT 3535#if CORO_JIT
3464 PUTBACK; 3536 PUTBACK;
3465 require_pv ("Coro/jit-" CORO_JIT_TYPE ".pl");
3466 jit_init (aTHX); 3537 jit_init (aTHX);
3467 perl_eval_pv ("undef &Coro::State::_jit", 1);
3468 SPAGAIN; 3538 SPAGAIN;
3469#endif 3539#endif
3470} 3540}
3471 3541
3472SV * 3542SV *
… …
3625 RETVAL = boolSV (coro->flags & ix); 3695 RETVAL = boolSV (coro->flags & ix);
3626 OUTPUT: 3696 OUTPUT:
3627 RETVAL 3697 RETVAL
3628 3698
3629void 3699void
3630throw (Coro::State self, SV *exception = &PL_sv_undef) 3700throw (SV *self, SV *exception = &PL_sv_undef)
3631 PROTOTYPE: $;$ 3701 PROTOTYPE: $;$
3632 CODE: 3702 CODE:
3633{ 3703{
3704 struct coro *coro = SvSTATE (self);
3634 struct coro *current = SvSTATE_current; 3705 struct coro *current = SvSTATE_current;
3635 SV **exceptionp = self == current ? &CORO_THROW : &self->except; 3706 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
3636 SvREFCNT_dec (*exceptionp); 3707 SvREFCNT_dec (*exceptionp);
3637 SvGETMAGIC (exception); 3708 SvGETMAGIC (exception);
3638 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0; 3709 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3710
3711 api_ready (aTHX_ self);
3639} 3712}
3640 3713
3641void 3714void
3642api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3715api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3643 PROTOTYPE: $;$ 3716 PROTOTYPE: $;$
… …
3773 3846
3774 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3847 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3775 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3848 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3776 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3849 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3777 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */ 3850 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3778 3851
3779 coro_stash = gv_stashpv ("Coro", TRUE); 3852 coro_stash = gv_stashpv ("Coro", TRUE);
3780 3853
3781 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); 3854 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3782 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); 3855 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3783 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); 3856 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
… …
4124} 4197}
4125 4198
4126MODULE = Coro::State PACKAGE = Coro::SemaphoreSet 4199MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
4127 4200
4128void 4201void
4129_may_delete (SV *sem, int count, int extra_refs) 4202_may_delete (SV *sem, int count, unsigned int extra_refs)
4130 PPCODE: 4203 PPCODE:
4131{ 4204{
4132 AV *av = (AV *)SvRV (sem); 4205 AV *av = (AV *)SvRV (sem);
4133 4206
4134 if (SvREFCNT ((SV *)av) == 1 + extra_refs 4207 if (SvREFCNT ((SV *)av) == 1 + extra_refs

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