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23 | #include <errno.h> |
23 | #include <errno.h> |
24 | #include <assert.h> |
24 | #include <assert.h> |
25 | |
25 | |
26 | #ifndef SVs_PADSTALE |
26 | #ifndef SVs_PADSTALE |
27 | # define SVs_PADSTALE 0 |
27 | # define SVs_PADSTALE 0 |
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28 | #endif |
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29 | |
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30 | #ifdef PadARRAY |
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31 | # define NEWPADAPI |
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32 | # define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *)) |
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33 | #else |
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34 | typedef AV PADNAMELIST; |
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35 | # if !PERL_VERSION_ATLEAST(5,8,0) |
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36 | typedef AV PADLIST; |
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37 | typedef AV PAD; |
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38 | # endif |
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39 | # define PadlistARRAY(pl) ((PAD **)AvARRAY (pl)) |
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40 | # define PadlistMAX(pl) AvFILLp (pl) |
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41 | # define PadlistNAMES(pl) (*PadlistARRAY (pl)) |
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42 | # define PadARRAY AvARRAY |
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43 | # define PadMAX AvFILLp |
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44 | # define newPADLIST(var) ((var) = newAV (), av_extend (var, 1)) |
28 | #endif |
45 | #endif |
29 | |
46 | |
30 | #if defined(_WIN32) |
47 | #if defined(_WIN32) |
31 | # undef HAS_GETTIMEOFDAY |
48 | # undef HAS_GETTIMEOFDAY |
32 | # undef setjmp |
49 | # undef setjmp |
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524 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
541 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
525 | |
542 | |
526 | /*****************************************************************************/ |
543 | /*****************************************************************************/ |
527 | /* padlist management and caching */ |
544 | /* padlist management and caching */ |
528 | |
545 | |
529 | ecb_inline AV * |
546 | ecb_inline PADLIST * |
530 | coro_derive_padlist (pTHX_ CV *cv) |
547 | coro_derive_padlist (pTHX_ CV *cv) |
531 | { |
548 | { |
532 | AV *padlist = CvPADLIST (cv); |
549 | PADLIST *padlist = CvPADLIST (cv); |
533 | AV *newpadlist, *newpad; |
550 | PADLIST *newpadlist; |
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551 | PAD *newpad; |
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552 | PADOFFSET const off = PadlistMAX (padlist) + 1; |
534 | |
553 | |
535 | newpadlist = newAV (); |
554 | newPADLIST(newpadlist); |
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555 | #if !PERL_VERSION_ATLEAST(5,15,3) |
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556 | /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */ |
536 | AvREAL_off (newpadlist); |
557 | AvREAL_off (newpadlist); |
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558 | #endif |
537 | #if PERL_VERSION_ATLEAST (5,10,0) |
559 | #if PERL_VERSION_ATLEAST (5,10,0) |
538 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
560 | Perl_pad_push (aTHX_ padlist, off); |
539 | #else |
561 | #else |
540 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
562 | Perl_pad_push (aTHX_ padlist, off, 1); |
541 | #endif |
563 | #endif |
542 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
564 | newpad = PadlistARRAY (padlist)[off]; |
543 | --AvFILLp (padlist); |
565 | PadlistMAX (padlist) = off - 1; |
544 | |
566 | |
545 | av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); |
567 | /* Already extended to 2 elements by newPADLIST. */ |
546 | av_store (newpadlist, 1, (SV *)newpad); |
568 | PadlistMAX (newpadlist) = 1; |
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569 | PadlistNAMES (newpadlist) = (PADNAMELIST *)SvREFCNT_inc_NN (PadlistNAMES (padlist)); |
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570 | PadlistARRAY (newpadlist)[1] = newpad; |
547 | |
571 | |
548 | return newpadlist; |
572 | return newpadlist; |
549 | } |
573 | } |
550 | |
574 | |
551 | ecb_inline void |
575 | ecb_inline void |
552 | free_padlist (pTHX_ AV *padlist) |
576 | free_padlist (pTHX_ PADLIST *padlist) |
553 | { |
577 | { |
554 | /* may be during global destruction */ |
578 | /* may be during global destruction */ |
555 | if (!IN_DESTRUCT) |
579 | if (!IN_DESTRUCT) |
556 | { |
580 | { |
557 | I32 i = AvFILLp (padlist); |
581 | I32 i = PadlistMAX (padlist); |
558 | |
582 | |
559 | while (i > 0) /* special-case index 0 */ |
583 | while (i > 0) /* special-case index 0 */ |
560 | { |
584 | { |
561 | /* we try to be extra-careful here */ |
585 | /* we try to be extra-careful here */ |
562 | AV *av = (AV *)AvARRAY (padlist)[i--]; |
586 | PAD *pad = PadlistARRAY (padlist)[i--]; |
563 | I32 j = AvFILLp (av); |
587 | I32 j = PadMAX (pad); |
564 | |
588 | |
565 | while (j >= 0) |
589 | while (j >= 0) |
566 | SvREFCNT_dec (AvARRAY (av)[j--]); |
590 | SvREFCNT_dec (PadARRAY (pad)[j--]); |
567 | |
591 | |
568 | AvFILLp (av) = -1; |
592 | PadMAX (pad) = -1; |
569 | SvREFCNT_dec (av); |
593 | SvREFCNT_dec (pad); |
570 | } |
594 | } |
571 | |
595 | |
572 | SvREFCNT_dec (AvARRAY (padlist)[0]); |
596 | SvREFCNT_dec (PadlistNAMES (padlist)); |
573 | |
597 | |
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598 | #ifdef NEWPADAPI |
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599 | Safefree (PadlistARRAY (padlist)); |
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600 | Safefree (padlist); |
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601 | #else |
574 | AvFILLp (padlist) = -1; |
602 | AvFILLp (padlist) = -1; |
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603 | AvREAL_off (padlist); |
575 | SvREFCNT_dec ((SV*)padlist); |
604 | SvREFCNT_dec ((SV*)padlist); |
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605 | #endif |
576 | } |
606 | } |
577 | } |
607 | } |
578 | |
608 | |
579 | static int |
609 | static int |
580 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
610 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
581 | { |
611 | { |
582 | AV *padlist; |
612 | PADLIST *padlist; |
583 | AV *av = (AV *)mg->mg_obj; |
613 | PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t)); |
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614 | size_t len = *(size_t *)mg->mg_ptr; |
584 | |
615 | |
585 | /* perl manages to free our internal AV and _then_ call us */ |
616 | /* perl manages to free our internal AV and _then_ call us */ |
586 | if (IN_DESTRUCT) |
617 | if (IN_DESTRUCT) |
587 | return 0; |
618 | return 0; |
588 | |
619 | |
589 | /* casting is fun. */ |
620 | while (len--) |
590 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
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591 | free_padlist (aTHX_ padlist); |
621 | free_padlist (aTHX_ padlists[len]); |
592 | |
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593 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
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594 | |
622 | |
595 | return 0; |
623 | return 0; |
596 | } |
624 | } |
597 | |
625 | |
598 | static MGVTBL coro_cv_vtbl = { |
626 | static MGVTBL coro_cv_vtbl = { |
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603 | /* the next two functions merely cache the padlists */ |
631 | /* the next two functions merely cache the padlists */ |
604 | ecb_inline void |
632 | ecb_inline void |
605 | get_padlist (pTHX_ CV *cv) |
633 | get_padlist (pTHX_ CV *cv) |
606 | { |
634 | { |
607 | MAGIC *mg = CORO_MAGIC_cv (cv); |
635 | MAGIC *mg = CORO_MAGIC_cv (cv); |
608 | AV *av; |
636 | size_t *lenp; |
609 | |
637 | |
610 | if (ecb_expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
638 | if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr))) |
611 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
639 | CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp]; |
612 | else |
640 | else |
613 | { |
641 | { |
614 | #if CORO_PREFER_PERL_FUNCTIONS |
642 | #if CORO_PREFER_PERL_FUNCTIONS |
615 | /* this is probably cleaner? but also slower! */ |
643 | /* this is probably cleaner? but also slower! */ |
616 | /* in practise, it seems to be less stable */ |
644 | /* in practise, it seems to be less stable */ |
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626 | |
654 | |
627 | ecb_inline void |
655 | ecb_inline void |
628 | put_padlist (pTHX_ CV *cv) |
656 | put_padlist (pTHX_ CV *cv) |
629 | { |
657 | { |
630 | MAGIC *mg = CORO_MAGIC_cv (cv); |
658 | MAGIC *mg = CORO_MAGIC_cv (cv); |
631 | AV *av; |
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632 | |
659 | |
633 | if (ecb_expect_false (!mg)) |
660 | if (ecb_expect_false (!mg)) |
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661 | { |
634 | 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); |
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663 | Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char); |
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664 | mg->mg_len = 1; /* so mg_free frees mg_ptr */ |
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665 | } |
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666 | else |
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667 | Renew (mg->mg_ptr, |
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668 | sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *), |
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669 | char); |
635 | |
670 | |
636 | av = (AV *)mg->mg_obj; |
671 | ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv); |
637 | |
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638 | if (ecb_expect_false (AvFILLp (av) >= AvMAX (av))) |
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639 | av_extend (av, AvFILLp (av) + 1); |
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640 | |
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641 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
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642 | } |
672 | } |
643 | |
673 | |
644 | /** load & save, init *******************************************************/ |
674 | /** load & save, init *******************************************************/ |
645 | |
675 | |
646 | ecb_inline void |
676 | ecb_inline void |
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721 | /* now do the ugly restore mess */ |
751 | /* now do the ugly restore mess */ |
722 | while (ecb_expect_true (cv = (CV *)POPs)) |
752 | while (ecb_expect_true (cv = (CV *)POPs)) |
723 | { |
753 | { |
724 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
754 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
725 | CvDEPTH (cv) = PTR2IV (POPs); |
755 | CvDEPTH (cv) = PTR2IV (POPs); |
726 | CvPADLIST (cv) = (AV *)POPs; |
756 | CvPADLIST (cv) = (PADLIST *)POPs; |
727 | } |
757 | } |
728 | |
758 | |
729 | PUTBACK; |
759 | PUTBACK; |
730 | } |
760 | } |
731 | |
761 | |