… | |
… | |
27 | # ifndef IS_PADCONST |
27 | # ifndef IS_PADCONST |
28 | # define IS_PADCONST(v) 0 |
28 | # define IS_PADCONST(v) 0 |
29 | # endif |
29 | # endif |
30 | #endif |
30 | #endif |
31 | |
31 | |
|
|
32 | #include <stdio.h> |
32 | #include <errno.h> |
33 | #include <errno.h> |
33 | |
34 | |
34 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
35 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
35 | # undef STACKGUARD |
36 | # undef STACKGUARD |
36 | #endif |
37 | #endif |
… | |
… | |
57 | # else |
58 | # else |
58 | # define BOOT_PAGESIZE |
59 | # define BOOT_PAGESIZE |
59 | # endif |
60 | # endif |
60 | #endif |
61 | #endif |
61 | |
62 | |
62 | #define SUB_INIT "Coro::State::initialize" |
|
|
63 | #define UCORO_STATE "_coro_state" |
|
|
64 | |
|
|
65 | /* The next macro should declare a variable stacklevel that contains and approximation |
63 | /* The next macro should declare a variable stacklevel that contains and approximation |
66 | * to the current C stack pointer. Its property is that it changes with each call |
64 | * to the current C stack pointer. Its property is that it changes with each call |
67 | * and should be unique. */ |
65 | * and should be unique. */ |
|
|
66 | #define dSTACKLEVEL int stacklevel |
68 | #define dSTACKLEVEL void *stacklevel = &stacklevel |
67 | #define STACKLEVEL ((void *)&stacklevel) |
69 | |
68 | |
70 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
69 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
71 | |
70 | |
72 | #define labs(l) ((l) >= 0 ? (l) : -(l)) |
|
|
73 | |
|
|
74 | #include "CoroAPI.h" |
71 | #include "CoroAPI.h" |
|
|
72 | |
|
|
73 | #define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */ |
75 | |
74 | |
76 | #ifdef USE_ITHREADS |
75 | #ifdef USE_ITHREADS |
77 | static perl_mutex coro_mutex; |
76 | static perl_mutex coro_mutex; |
78 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
77 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
79 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
78 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
… | |
… | |
82 | # define UNLOCK (void)0 |
81 | # define UNLOCK (void)0 |
83 | #endif |
82 | #endif |
84 | |
83 | |
85 | static struct CoroAPI coroapi; |
84 | static struct CoroAPI coroapi; |
86 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
85 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
87 | static HV *coro_state_stash; |
86 | static HV *coro_state_stash, *coro_stash; |
88 | static SV *ucoro_state_sv; |
|
|
89 | static U32 ucoro_state_hash; |
|
|
90 | static SV *coro_mortal; /* will be freed after next transfer */ |
87 | static SV *coro_mortal; /* will be freed after next transfer */ |
91 | |
88 | |
92 | /* this is actually not only the c stack but also c registers etc... */ |
89 | /* this is a structure representing a c-level coroutine */ |
93 | typedef struct { |
90 | typedef struct coro_stack { |
94 | int refcnt; /* pointer reference counter */ |
91 | struct coro_stack *next; |
95 | int usecnt; /* shared by how many coroutines */ |
|
|
96 | int gencnt; /* generation counter */ |
|
|
97 | |
92 | |
98 | coro_context cctx; |
93 | /* the stack */ |
99 | |
|
|
100 | void *sptr; |
94 | void *sptr; |
101 | long ssize; /* positive == mmap, otherwise malloc */ |
95 | long ssize; /* positive == mmap, otherwise malloc */ |
|
|
96 | |
|
|
97 | /* cpu state */ |
|
|
98 | void *idle_sp; /* original stacklevel when coroutine was created */ |
|
|
99 | JMPENV *top_env; |
|
|
100 | coro_context cctx; |
102 | } coro_stack; |
101 | } coro_stack; |
103 | |
102 | |
|
|
103 | /* the (fake) coro_stack representing the main program */ |
|
|
104 | static coro_stack *main_stack; |
|
|
105 | |
|
|
106 | /* this is a structure representing a perl-level coroutine */ |
104 | struct coro { |
107 | struct coro { |
105 | /* the optional C context */ |
108 | /* the c coroutine allocated to this perl coroutine, if any */ |
106 | coro_stack *stack; |
109 | coro_stack *stack; |
107 | void *cursp; |
110 | |
|
|
111 | /* data associated with this coroutine (initial args) */ |
|
|
112 | AV *args; |
108 | int gencnt; |
113 | int refcnt; |
109 | |
114 | |
110 | /* optionally saved, might be zero */ |
115 | /* optionally saved, might be zero */ |
111 | AV *defav; |
116 | AV *defav; |
112 | SV *defsv; |
117 | SV *defsv; |
113 | SV *errsv; |
118 | SV *errsv; |
… | |
… | |
143 | OP **retstack; |
148 | OP **retstack; |
144 | I32 retstack_ix; |
149 | I32 retstack_ix; |
145 | I32 retstack_max; |
150 | I32 retstack_max; |
146 | PMOP *curpm; |
151 | PMOP *curpm; |
147 | COP *curcop; |
152 | COP *curcop; |
148 | JMPENV *top_env; |
|
|
149 | |
153 | |
150 | /* data associated with this coroutine (initial args) */ |
154 | /* coro process data */ |
151 | AV *args; |
155 | int prio; |
152 | }; |
156 | }; |
153 | |
157 | |
154 | typedef struct coro *Coro__State; |
158 | typedef struct coro *Coro__State; |
155 | typedef struct coro *Coro__State_or_hashref; |
159 | typedef struct coro *Coro__State_or_hashref; |
156 | |
160 | |
… | |
… | |
299 | PL_retstack_ix = c->retstack_ix; |
303 | PL_retstack_ix = c->retstack_ix; |
300 | PL_retstack_max = c->retstack_max; |
304 | PL_retstack_max = c->retstack_max; |
301 | #endif |
305 | #endif |
302 | PL_curpm = c->curpm; |
306 | PL_curpm = c->curpm; |
303 | PL_curcop = c->curcop; |
307 | PL_curcop = c->curcop; |
304 | PL_top_env = c->top_env; |
|
|
305 | |
308 | |
306 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
309 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
307 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
310 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
308 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
311 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
309 | |
312 | |
… | |
… | |
427 | c->retstack_ix = PL_retstack_ix; |
430 | c->retstack_ix = PL_retstack_ix; |
428 | c->retstack_max = PL_retstack_max; |
431 | c->retstack_max = PL_retstack_max; |
429 | #endif |
432 | #endif |
430 | c->curpm = PL_curpm; |
433 | c->curpm = PL_curpm; |
431 | c->curcop = PL_curcop; |
434 | c->curcop = PL_curcop; |
432 | c->top_env = PL_top_env; |
|
|
433 | } |
435 | } |
434 | |
436 | |
435 | /* |
437 | /* |
436 | * allocate various perl stacks. This is an exact copy |
438 | * allocate various perl stacks. This is an exact copy |
437 | * of perl.c:init_stacks, except that it uses less memory |
439 | * of perl.c:init_stacks, except that it uses less memory |
… | |
… | |
531 | Safefree (PL_retstack); |
533 | Safefree (PL_retstack); |
532 | #endif |
534 | #endif |
533 | } |
535 | } |
534 | |
536 | |
535 | static void |
537 | static void |
536 | allocate_stack (Coro__State ctx, int alloc) |
538 | setup_coro (struct coro *coro) |
537 | { |
|
|
538 | coro_stack *stack; |
|
|
539 | |
|
|
540 | New (0, stack, 1, coro_stack); |
|
|
541 | |
|
|
542 | stack->refcnt = 1; |
|
|
543 | stack->usecnt = 1; |
|
|
544 | stack->gencnt = ctx->gencnt = 0; |
|
|
545 | |
|
|
546 | if (alloc) |
|
|
547 | { |
|
|
548 | #if HAVE_MMAP |
|
|
549 | stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */ |
|
|
550 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
|
|
551 | if (stack->sptr != (void *)-1) |
|
|
552 | { |
|
|
553 | # if STACKGUARD |
|
|
554 | mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
|
|
555 | # endif |
|
|
556 | } |
|
|
557 | else |
|
|
558 | #endif |
|
|
559 | { |
|
|
560 | stack->ssize = - (STACKSIZE * (long)sizeof (long)); |
|
|
561 | New (0, stack->sptr, STACKSIZE, long); |
|
|
562 | } |
|
|
563 | } |
|
|
564 | else |
|
|
565 | stack->sptr = 0; |
|
|
566 | |
|
|
567 | ctx->stack = stack; |
|
|
568 | } |
|
|
569 | |
|
|
570 | static void |
|
|
571 | deallocate_stack (Coro__State ctx) |
|
|
572 | { |
|
|
573 | coro_stack *stack = ctx->stack; |
|
|
574 | |
|
|
575 | ctx->stack = 0; |
|
|
576 | |
|
|
577 | if (stack) |
|
|
578 | { |
|
|
579 | if (!--stack->refcnt) |
|
|
580 | { |
|
|
581 | #ifdef HAVE_MMAP |
|
|
582 | if (stack->ssize > 0 && stack->sptr) |
|
|
583 | munmap (stack->sptr, stack->ssize); |
|
|
584 | else |
|
|
585 | #endif |
|
|
586 | Safefree (stack->sptr); |
|
|
587 | |
|
|
588 | Safefree (stack); |
|
|
589 | } |
|
|
590 | else if (ctx->gencnt == stack->gencnt) |
|
|
591 | --stack->usecnt; |
|
|
592 | } |
|
|
593 | } |
|
|
594 | |
|
|
595 | static void |
|
|
596 | setup_coro (void *arg) |
|
|
597 | { |
539 | { |
598 | /* |
540 | /* |
599 | * emulate part of the perl startup here. |
541 | * emulate part of the perl startup here. |
600 | */ |
542 | */ |
601 | dTHX; |
543 | dTHX; |
602 | dSP; |
544 | dSP; |
603 | Coro__State ctx = (Coro__State)arg; |
545 | UNOP myop; |
604 | SV *sub_init = (SV *)get_cv (SUB_INIT, FALSE); |
546 | SV *sub_init = (SV *)get_cv ("Coro::State::coro_init", FALSE); |
605 | |
547 | |
606 | coro_init_stacks (aTHX); |
548 | coro_init_stacks (aTHX); |
607 | /*PL_curcop = 0;*/ |
549 | /*PL_curcop = 0;*/ |
608 | /*PL_in_eval = PL_in_eval;*/ /* inherit */ |
550 | /*PL_in_eval = PL_in_eval;*/ /* inherit */ |
609 | SvREFCNT_dec (GvAV (PL_defgv)); |
551 | SvREFCNT_dec (GvAV (PL_defgv)); |
610 | GvAV (PL_defgv) = ctx->args; ctx->args = 0; |
552 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
611 | |
553 | |
612 | SPAGAIN; |
554 | SPAGAIN; |
613 | |
555 | |
614 | if (ctx->stack) |
|
|
615 | { |
|
|
616 | ctx->cursp = 0; |
|
|
617 | |
|
|
618 | PUSHMARK(SP); |
|
|
619 | PUTBACK; |
|
|
620 | (void) call_sv (sub_init, G_VOID|G_NOARGS|G_EVAL); |
|
|
621 | |
|
|
622 | if (SvTRUE (ERRSV)) |
|
|
623 | croak (NULL); |
|
|
624 | else |
|
|
625 | croak ("FATAL: CCTXT coroutine returned!"); |
|
|
626 | } |
|
|
627 | else |
|
|
628 | { |
|
|
629 | UNOP myop; |
|
|
630 | |
|
|
631 | Zero(&myop, 1, UNOP); |
556 | Zero (&myop, 1, UNOP); |
632 | myop.op_next = Nullop; |
557 | myop.op_next = Nullop; |
633 | myop.op_flags = OPf_WANT_VOID; |
558 | myop.op_flags = OPf_WANT_VOID; |
634 | |
559 | |
635 | PL_op = (OP *)&myop; |
560 | PL_op = (OP *)&myop; |
636 | |
561 | |
637 | PUSHMARK(SP); |
562 | PUSHMARK(SP); |
638 | XPUSHs (sub_init); |
563 | XPUSHs (sub_init); |
639 | /* |
|
|
640 | * the next line is slightly wrong, as PL_op->op_next |
|
|
641 | * is actually being executed so we skip the first op. |
|
|
642 | * that doesn't matter, though, since it is only |
|
|
643 | * pp_nextstate and we never return... |
|
|
644 | * ah yes, and I don't care anyways ;) |
|
|
645 | */ |
|
|
646 | PUTBACK; |
564 | PUTBACK; |
647 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
565 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
648 | SPAGAIN; |
566 | SPAGAIN; |
649 | |
567 | |
650 | ENTER; /* necessary e.g. for dounwind */ |
568 | ENTER; /* necessary e.g. for dounwind */ |
651 | } |
|
|
652 | } |
569 | } |
653 | |
570 | |
654 | static void |
571 | static void |
655 | continue_coro (void *arg) |
572 | free_coro_mortal () |
656 | { |
573 | { |
657 | /* |
|
|
658 | * this is a _very_ stripped down perl interpreter ;) |
|
|
659 | */ |
|
|
660 | dTHX; |
|
|
661 | Coro__State ctx = (Coro__State)arg; |
|
|
662 | |
|
|
663 | PL_top_env = &PL_start_env; |
|
|
664 | |
|
|
665 | ctx->cursp = 0; |
|
|
666 | PL_op = PL_op->op_next; |
|
|
667 | CALLRUNOPS(aTHX); |
|
|
668 | |
|
|
669 | abort (); |
|
|
670 | } |
|
|
671 | |
|
|
672 | static void |
|
|
673 | transfer (pTHX_ struct coro *prev, struct coro *next, int flags) |
|
|
674 | { |
|
|
675 | dSTACKLEVEL; |
|
|
676 | |
|
|
677 | if (prev != next) |
|
|
678 | { |
|
|
679 | /* has this coro been created yet? */ |
|
|
680 | if (next->mainstack) |
|
|
681 | { |
|
|
682 | LOCK; |
|
|
683 | SAVE (prev, flags); |
|
|
684 | LOAD (next); |
|
|
685 | UNLOCK; |
|
|
686 | |
|
|
687 | /* mark this state as in-use */ |
|
|
688 | next->mainstack = 0; |
|
|
689 | next->tmps_ix = -2; |
|
|
690 | |
|
|
691 | /* stacklevel changed? if yes, grab the stack for us! */ |
|
|
692 | if (flags & TRANSFER_SAVE_CCTXT) |
|
|
693 | { |
|
|
694 | if (!prev->stack) |
|
|
695 | allocate_stack (prev, 0); |
|
|
696 | else if (prev->cursp != stacklevel |
|
|
697 | && prev->stack->usecnt > 1) |
|
|
698 | { |
|
|
699 | prev->gencnt = ++prev->stack->gencnt; |
|
|
700 | prev->stack->usecnt = 1; |
|
|
701 | } |
|
|
702 | |
|
|
703 | /* has our stack been invalidated? */ |
|
|
704 | if (next->stack && next->stack->gencnt != next->gencnt) |
|
|
705 | { |
|
|
706 | deallocate_stack (next); |
|
|
707 | allocate_stack (next, 1); |
|
|
708 | coro_create (&(next->stack->cctx), |
|
|
709 | continue_coro, (void *)next, |
|
|
710 | next->stack->sptr, labs (next->stack->ssize)); |
|
|
711 | } |
|
|
712 | |
|
|
713 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
|
|
714 | prev->cursp = stacklevel; |
|
|
715 | /* don't add any code here */ |
|
|
716 | } |
|
|
717 | else |
|
|
718 | next->cursp = stacklevel; |
|
|
719 | } |
|
|
720 | else if (next->tmps_ix == -2) |
|
|
721 | croak ("tried to transfer to running coroutine"); |
|
|
722 | else |
|
|
723 | { |
|
|
724 | LOCK; |
|
|
725 | SAVE (prev, -1); /* first get rid of the old state */ |
|
|
726 | UNLOCK; |
|
|
727 | |
|
|
728 | /* create the coroutine for the first time */ |
|
|
729 | if (flags & TRANSFER_SAVE_CCTXT) |
|
|
730 | { |
|
|
731 | if (!prev->stack) |
|
|
732 | allocate_stack (prev, 0); |
|
|
733 | |
|
|
734 | /* the new coroutine starts with start_env again */ |
|
|
735 | PL_top_env = &PL_start_env; |
|
|
736 | |
|
|
737 | if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK) |
|
|
738 | { |
|
|
739 | setup_coro (next); |
|
|
740 | next->cursp = stacklevel; |
|
|
741 | |
|
|
742 | prev->stack->refcnt++; |
|
|
743 | prev->stack->usecnt++; |
|
|
744 | next->stack = prev->stack; |
|
|
745 | next->gencnt = prev->gencnt; |
|
|
746 | } |
|
|
747 | else |
|
|
748 | { |
|
|
749 | assert (!next->stack); |
|
|
750 | allocate_stack (next, 1); |
|
|
751 | coro_create (&(next->stack->cctx), |
|
|
752 | setup_coro, (void *)next, |
|
|
753 | next->stack->sptr, labs (next->stack->ssize)); |
|
|
754 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
|
|
755 | prev->cursp = stacklevel; |
|
|
756 | /* don't add any code here */ |
|
|
757 | } |
|
|
758 | } |
|
|
759 | else |
|
|
760 | { |
|
|
761 | setup_coro (next); |
|
|
762 | next->cursp = stacklevel; |
|
|
763 | } |
|
|
764 | } |
|
|
765 | } |
|
|
766 | |
|
|
767 | LOCK; |
|
|
768 | if (coro_mortal) |
574 | if (coro_mortal) |
769 | { |
575 | { |
770 | SvREFCNT_dec (coro_mortal); |
576 | SvREFCNT_dec (coro_mortal); |
771 | coro_mortal = 0; |
577 | coro_mortal = 0; |
772 | } |
578 | } |
|
|
579 | } |
|
|
580 | |
|
|
581 | static void |
|
|
582 | coro_run (void *arg) |
|
|
583 | { |
|
|
584 | /* |
|
|
585 | * this is a _very_ stripped down perl interpreter ;) |
|
|
586 | */ |
|
|
587 | dTHX; |
|
|
588 | int ret; |
|
|
589 | |
773 | UNLOCK; |
590 | UNLOCK; |
774 | } |
|
|
775 | |
591 | |
776 | #define SV_CORO(sv,func) \ |
592 | PL_top_env = &PL_start_env; |
777 | do { \ |
|
|
778 | if (SvROK (sv)) \ |
|
|
779 | sv = SvRV (sv); \ |
|
|
780 | \ |
|
|
781 | if (SvTYPE (sv) == SVt_PVHV) \ |
|
|
782 | { \ |
|
|
783 | HE *he = hv_fetch_ent ((HV *)sv, ucoro_state_sv, 0, ucoro_state_hash); \ |
|
|
784 | \ |
|
|
785 | if (!he) \ |
|
|
786 | croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \ |
|
|
787 | \ |
|
|
788 | (sv) = SvRV (HeVAL(he)); \ |
|
|
789 | } \ |
|
|
790 | \ |
|
|
791 | /* must also be changed inside Coro::Cont::yield */ \ |
|
|
792 | if (!SvOBJECT (sv) || SvSTASH (sv) != coro_state_stash) \ |
|
|
793 | croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \ |
|
|
794 | \ |
|
|
795 | } while(0) |
|
|
796 | |
593 | |
797 | #define SvSTATE(sv) INT2PTR (struct coro *, SvIV (sv)) |
594 | sv_setiv (get_sv ("Coro::State::cctx_stack", FALSE), PTR2IV ((coro_stack *)arg)); |
|
|
595 | sv_setiv (get_sv ("Coro::State::cctx_restartop", FALSE), PTR2IV (PL_op)); |
798 | |
596 | |
|
|
597 | /* continue at cctx_init, without entersub */ |
|
|
598 | PL_restartop = CvSTART (get_cv ("Coro::State::cctx_init", FALSE)); |
|
|
599 | |
|
|
600 | /* somebody will hit me for both perl_run and PL_restartop */ |
|
|
601 | ret = perl_run (aTHX_ PERL_GET_CONTEXT); |
|
|
602 | printf ("ret %d\n", ret);//D |
|
|
603 | |
|
|
604 | fputs ("FATAL: C coroutine fell over the edge of the world, aborting.\n", stderr); |
|
|
605 | abort (); |
|
|
606 | } |
|
|
607 | |
|
|
608 | static coro_stack * |
|
|
609 | stack_new () |
|
|
610 | { |
|
|
611 | coro_stack *stack; |
|
|
612 | |
|
|
613 | New (0, stack, 1, coro_stack); |
|
|
614 | |
|
|
615 | #if HAVE_MMAP |
|
|
616 | |
|
|
617 | stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; |
|
|
618 | /* mmap suppsedly does allocate-on-write for us */ |
|
|
619 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
|
|
620 | |
|
|
621 | if (stack->sptr == (void *)-1) |
|
|
622 | { |
|
|
623 | perror ("FATAL: unable to mmap stack for coroutine"); |
|
|
624 | _exit (EXIT_FAILURE); |
|
|
625 | } |
|
|
626 | |
|
|
627 | # if STACKGUARD |
|
|
628 | mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
|
|
629 | # endif |
|
|
630 | |
|
|
631 | #else |
|
|
632 | |
|
|
633 | stack->ssize = STACKSIZE * (long)sizeof (long); |
|
|
634 | New (0, stack->sptr, STACKSIZE, long); |
|
|
635 | |
|
|
636 | if (!stack->sptr) |
|
|
637 | { |
|
|
638 | perror (stderr, "FATAL: unable to malloc stack for coroutine"); |
|
|
639 | _exit (EXIT_FAILURE); |
|
|
640 | } |
|
|
641 | |
|
|
642 | #endif |
|
|
643 | |
|
|
644 | coro_create (&stack->cctx, coro_run, (void *)stack, stack->sptr, stack->ssize); |
|
|
645 | |
|
|
646 | return stack; |
|
|
647 | } |
|
|
648 | |
|
|
649 | static void |
|
|
650 | stack_free (coro_stack *stack) |
|
|
651 | { |
|
|
652 | if (!stack || stack == main_stack) |
|
|
653 | return; |
|
|
654 | |
|
|
655 | #if HAVE_MMAP |
|
|
656 | munmap (stack->sptr, stack->ssize); |
|
|
657 | #else |
|
|
658 | Safefree (stack->sptr); |
|
|
659 | #endif |
|
|
660 | |
|
|
661 | Safefree (stack); |
|
|
662 | } |
|
|
663 | |
|
|
664 | static coro_stack *stack_first; |
|
|
665 | |
|
|
666 | static coro_stack * |
|
|
667 | stack_get () |
|
|
668 | { |
|
|
669 | coro_stack *stack; |
|
|
670 | |
|
|
671 | if (stack_first) |
|
|
672 | { |
|
|
673 | stack = stack_first; |
|
|
674 | stack_first = stack->next; |
|
|
675 | } |
|
|
676 | else |
|
|
677 | { |
|
|
678 | stack = stack_new (); |
|
|
679 | PL_op = PL_op->op_next; |
|
|
680 | } |
|
|
681 | |
|
|
682 | return stack; |
|
|
683 | } |
|
|
684 | |
|
|
685 | static void |
|
|
686 | stack_put (coro_stack *stack) |
|
|
687 | { |
|
|
688 | stack->next = stack_first; |
|
|
689 | stack_first = stack; |
|
|
690 | } |
|
|
691 | |
|
|
692 | /* never call directly, always through the coro_state_transfer global variable */ |
|
|
693 | static void |
|
|
694 | transfer_impl (pTHX_ struct coro *prev, struct coro *next, int flags) |
|
|
695 | { |
|
|
696 | dSTACKLEVEL; |
|
|
697 | |
|
|
698 | /* sometimes transfer is only called to set idle_sp */ |
|
|
699 | if (flags == TRANSFER_SET_STACKLEVEL) |
|
|
700 | ((coro_stack *)prev)->idle_sp = STACKLEVEL; |
|
|
701 | else if (prev != next) |
|
|
702 | { |
|
|
703 | coro_stack *prev__stack; |
|
|
704 | |
|
|
705 | LOCK; |
|
|
706 | |
|
|
707 | if (next->mainstack) |
|
|
708 | { |
|
|
709 | /* coroutine already started */ |
|
|
710 | SAVE (prev, flags); |
|
|
711 | LOAD (next); |
|
|
712 | } |
|
|
713 | else |
|
|
714 | { |
|
|
715 | /* need to start coroutine */ |
|
|
716 | /* first get rid of the old state */ |
|
|
717 | SAVE (prev, -1); |
|
|
718 | /* setup coroutine call */ |
|
|
719 | setup_coro (next); |
|
|
720 | /* need a stack */ |
|
|
721 | next->stack = 0; |
|
|
722 | } |
|
|
723 | |
|
|
724 | prev__stack = prev->stack; |
|
|
725 | |
|
|
726 | /* possibly "free" the stack */ |
|
|
727 | if (prev__stack->idle_sp == STACKLEVEL) |
|
|
728 | { |
|
|
729 | stack_put (prev__stack); |
|
|
730 | prev->stack = 0; |
|
|
731 | } |
|
|
732 | |
|
|
733 | if (!next->stack) |
|
|
734 | next->stack = stack_get (); |
|
|
735 | |
|
|
736 | if (prev__stack != next->stack) |
|
|
737 | { |
|
|
738 | prev__stack->top_env = PL_top_env; |
|
|
739 | PL_top_env = next->stack->top_env; |
|
|
740 | printf ("stacksw %p %p\n", prev__stack->idle_sp, next->stack->idle_sp);//D |
|
|
741 | coro_transfer (&prev__stack->cctx, &next->stack->cctx); |
|
|
742 | } |
|
|
743 | |
|
|
744 | free_coro_mortal (); |
|
|
745 | |
|
|
746 | UNLOCK; |
|
|
747 | } |
|
|
748 | } |
|
|
749 | |
|
|
750 | /* use this function pointer to call the above function */ |
|
|
751 | /* this is done to increase chances of the compiler not inlining the call */ |
|
|
752 | /* not static to make it even harder for the compiler (and theoretically impossible in most cases */ |
|
|
753 | void (*coro_state_transfer)(pTHX_ struct coro *prev, struct coro *next, int flags) = transfer_impl; |
|
|
754 | |
|
|
755 | struct transfer_args |
|
|
756 | { |
|
|
757 | struct coro *prev, *next; |
|
|
758 | int flags; |
|
|
759 | }; |
|
|
760 | |
|
|
761 | #define TRANSFER(ta) coro_state_transfer ((ta).prev, (ta).next, (ta).flags) |
|
|
762 | |
|
|
763 | static void |
|
|
764 | coro_state_destroy (struct coro *coro) |
|
|
765 | { |
|
|
766 | if (coro->refcnt--) |
|
|
767 | return; |
|
|
768 | |
|
|
769 | if (coro->mainstack && coro->mainstack != main_mainstack) |
|
|
770 | { |
|
|
771 | struct coro temp; |
|
|
772 | |
|
|
773 | SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL); |
|
|
774 | LOAD (aTHX_ coro); |
|
|
775 | |
|
|
776 | destroy_stacks (aTHX); |
|
|
777 | |
|
|
778 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
|
|
779 | |
|
|
780 | coro->mainstack = 0; |
|
|
781 | } |
|
|
782 | |
|
|
783 | stack_free (coro->stack); |
|
|
784 | SvREFCNT_dec (coro->args); |
|
|
785 | Safefree (coro); |
|
|
786 | } |
|
|
787 | |
799 | static void |
788 | static int |
|
|
789 | coro_state_clear (SV *sv, MAGIC *mg) |
|
|
790 | { |
|
|
791 | struct coro *coro = (struct coro *)mg->mg_ptr; |
|
|
792 | mg->mg_ptr = 0; |
|
|
793 | |
|
|
794 | coro_state_destroy (coro); |
|
|
795 | |
|
|
796 | return 0; |
|
|
797 | } |
|
|
798 | |
|
|
799 | static int |
|
|
800 | coro_state_dup (MAGIC *mg, CLONE_PARAMS *params) |
|
|
801 | { |
|
|
802 | struct coro *coro = (struct coro *)mg->mg_ptr; |
|
|
803 | |
|
|
804 | ++coro->refcnt; |
|
|
805 | |
|
|
806 | return 0; |
|
|
807 | } |
|
|
808 | |
|
|
809 | static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 }; |
|
|
810 | |
|
|
811 | static struct coro * |
|
|
812 | SvSTATE (SV *coro) |
|
|
813 | { |
|
|
814 | HV *stash; |
|
|
815 | MAGIC *mg; |
|
|
816 | |
|
|
817 | if (SvROK (coro)) |
|
|
818 | coro = SvRV (coro); |
|
|
819 | |
|
|
820 | stash = SvSTASH (coro); |
|
|
821 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
822 | { |
|
|
823 | /* very slow, but rare, check */ |
|
|
824 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
825 | croak ("Coro::State object required"); |
|
|
826 | } |
|
|
827 | |
|
|
828 | mg = SvMAGIC (coro); |
|
|
829 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
830 | return (struct coro *)mg->mg_ptr; |
|
|
831 | } |
|
|
832 | |
|
|
833 | static void |
|
|
834 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev, SV *next, int flags) |
|
|
835 | { |
|
|
836 | ta->prev = SvSTATE (prev); |
|
|
837 | ta->next = SvSTATE (next); |
|
|
838 | ta->flags = flags; |
|
|
839 | } |
|
|
840 | |
|
|
841 | static void |
800 | api_transfer(pTHX_ SV *prev, SV *next, int flags) |
842 | api_transfer (SV *prev, SV *next, int flags) |
801 | { |
843 | { |
802 | SV_CORO (prev, "Coro::transfer"); |
844 | dTHX; |
803 | SV_CORO (next, "Coro::transfer"); |
845 | struct transfer_args ta; |
804 | |
846 | |
805 | transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
847 | prepare_transfer (aTHX_ &ta, prev, next, flags); |
|
|
848 | TRANSFER (ta); |
806 | } |
849 | } |
807 | |
850 | |
808 | /** Coro ********************************************************************/ |
851 | /** Coro ********************************************************************/ |
809 | |
852 | |
810 | #define PRIO_MAX 3 |
853 | #define PRIO_MAX 3 |
… | |
… | |
814 | #define PRIO_IDLE -3 |
857 | #define PRIO_IDLE -3 |
815 | #define PRIO_MIN -4 |
858 | #define PRIO_MIN -4 |
816 | |
859 | |
817 | /* for Coro.pm */ |
860 | /* for Coro.pm */ |
818 | static GV *coro_current, *coro_idle; |
861 | static GV *coro_current, *coro_idle; |
819 | static AV *coro_ready[PRIO_MAX-PRIO_MIN+1]; |
862 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
820 | static int coro_nready; |
863 | static int coro_nready; |
821 | |
864 | |
822 | static void |
865 | static void |
823 | coro_enq (pTHX_ SV *sv) |
866 | coro_enq (pTHX_ SV *sv) |
824 | { |
867 | { |
825 | SV **xprio; |
|
|
826 | int prio; |
868 | int prio; |
827 | |
869 | |
828 | if (SvTYPE (sv) != SVt_PVHV) |
870 | if (SvTYPE (sv) != SVt_PVHV) |
829 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
871 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
830 | |
872 | |
831 | xprio = hv_fetch ((HV *)sv, "prio", 4, 0); |
873 | prio = SvSTATE (sv)->prio; |
832 | prio = xprio ? SvIV (*xprio) : PRIO_NORMAL; |
|
|
833 | |
|
|
834 | prio = prio > PRIO_MAX ? PRIO_MAX |
|
|
835 | : prio < PRIO_MIN ? PRIO_MIN |
|
|
836 | : prio; |
|
|
837 | |
874 | |
838 | av_push (coro_ready [prio - PRIO_MIN], sv); |
875 | av_push (coro_ready [prio - PRIO_MIN], sv); |
839 | coro_nready++; |
876 | coro_nready++; |
840 | } |
877 | } |
841 | |
878 | |
… | |
… | |
847 | min_prio -= PRIO_MIN; |
884 | min_prio -= PRIO_MIN; |
848 | if (min_prio < 0) |
885 | if (min_prio < 0) |
849 | min_prio = 0; |
886 | min_prio = 0; |
850 | |
887 | |
851 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
888 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
852 | if (AvFILLp (coro_ready[prio]) >= 0) |
889 | if (AvFILLp (coro_ready [prio]) >= 0) |
853 | { |
890 | { |
854 | coro_nready--; |
891 | coro_nready--; |
855 | return av_shift (coro_ready[prio]); |
892 | return av_shift (coro_ready [prio]); |
856 | } |
893 | } |
857 | |
894 | |
858 | return 0; |
895 | return 0; |
859 | } |
896 | } |
860 | |
897 | |
… | |
… | |
870 | coro_enq (aTHX_ SvREFCNT_inc (coro)); |
907 | coro_enq (aTHX_ SvREFCNT_inc (coro)); |
871 | UNLOCK; |
908 | UNLOCK; |
872 | } |
909 | } |
873 | |
910 | |
874 | static void |
911 | static void |
875 | api_schedule (void) |
912 | prepare_schedule (aTHX_ struct transfer_args *ta) |
876 | { |
913 | { |
877 | dTHX; |
|
|
878 | |
|
|
879 | SV *prev, *next; |
914 | SV *current, *prev, *next; |
880 | |
915 | |
881 | LOCK; |
916 | LOCK; |
882 | |
917 | |
883 | prev = SvRV (GvSV (coro_current)); |
918 | current = GvSV (coro_current); |
|
|
919 | |
|
|
920 | for (;;) |
|
|
921 | { |
|
|
922 | LOCK; |
|
|
923 | |
884 | next = coro_deq (aTHX_ PRIO_MIN); |
924 | next = coro_deq (aTHX_ PRIO_MIN); |
885 | |
925 | |
886 | if (!next) |
926 | if (next) |
887 | next = SvREFCNT_inc (SvRV (GvSV (coro_idle))); |
927 | break; |
|
|
928 | |
|
|
929 | UNLOCK; |
|
|
930 | |
|
|
931 | { |
|
|
932 | dSP; |
|
|
933 | |
|
|
934 | ENTER; |
|
|
935 | SAVETMPS; |
|
|
936 | |
|
|
937 | PUSHMARK (SP); |
|
|
938 | PUTBACK; |
|
|
939 | call_sv (GvSV (coro_idle), G_DISCARD); |
|
|
940 | |
|
|
941 | FREETMPS; |
|
|
942 | LEAVE; |
|
|
943 | } |
|
|
944 | } |
|
|
945 | |
|
|
946 | prev = SvRV (current); |
|
|
947 | SvRV (current) = next; |
888 | |
948 | |
889 | /* free this only after the transfer */ |
949 | /* free this only after the transfer */ |
|
|
950 | free_coro_mortal (); |
890 | coro_mortal = prev; |
951 | coro_mortal = prev; |
891 | SV_CORO (prev, "Coro::schedule"); |
|
|
892 | |
952 | |
893 | SvRV (GvSV (coro_current)) = next; |
953 | ta->prev = SvSTATE (prev); |
894 | |
954 | ta->next = SvSTATE (next); |
895 | SV_CORO (next, "Coro::schedule"); |
955 | ta->flags = TRANSFER_SAVE_ALL; |
896 | |
956 | |
897 | UNLOCK; |
957 | UNLOCK; |
898 | |
|
|
899 | transfer (aTHX_ SvSTATE (prev), SvSTATE (next), |
|
|
900 | TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK); |
|
|
901 | } |
958 | } |
902 | |
959 | |
903 | static void |
960 | static void |
904 | api_cede (void) |
961 | prepare_cede (aTHX_ struct transfer_args *ta) |
905 | { |
962 | { |
906 | dTHX; |
|
|
907 | |
|
|
908 | LOCK; |
963 | LOCK; |
909 | coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current)))); |
964 | coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current)))); |
910 | UNLOCK; |
965 | UNLOCK; |
911 | |
966 | |
|
|
967 | prepare_schedule (ta); |
|
|
968 | } |
|
|
969 | |
|
|
970 | static void |
912 | api_schedule (); |
971 | api_schedule (void) |
|
|
972 | { |
|
|
973 | dTHX; |
|
|
974 | struct transfer_args ta; |
|
|
975 | |
|
|
976 | prepare_schedule (&ta); |
|
|
977 | TRANSFER (ta); |
|
|
978 | } |
|
|
979 | |
|
|
980 | static void |
|
|
981 | api_cede (void) |
|
|
982 | { |
|
|
983 | dTHX; |
|
|
984 | struct transfer_args ta; |
|
|
985 | |
|
|
986 | prepare_cede (&ta); |
|
|
987 | TRANSFER (ta); |
913 | } |
988 | } |
914 | |
989 | |
915 | MODULE = Coro::State PACKAGE = Coro::State |
990 | MODULE = Coro::State PACKAGE = Coro::State |
916 | |
991 | |
917 | PROTOTYPES: ENABLE |
992 | PROTOTYPES: DISABLE |
918 | |
993 | |
919 | BOOT: |
994 | BOOT: |
920 | { /* {} necessary for stoopid perl-5.6.x */ |
995 | { |
921 | #ifdef USE_ITHREADS |
996 | #ifdef USE_ITHREADS |
922 | MUTEX_INIT (&coro_mutex); |
997 | MUTEX_INIT (&coro_mutex); |
923 | #endif |
998 | #endif |
924 | BOOT_PAGESIZE; |
999 | BOOT_PAGESIZE; |
925 | |
1000 | |
926 | ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1); |
|
|
927 | PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1); |
|
|
928 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1001 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
929 | |
1002 | |
930 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
1003 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
931 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
1004 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
932 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
1005 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
933 | newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT)); |
|
|
934 | |
1006 | |
935 | main_mainstack = PL_mainstack; |
1007 | main_mainstack = PL_mainstack; |
936 | |
1008 | |
937 | coroapi.ver = CORO_API_VERSION; |
1009 | coroapi.ver = CORO_API_VERSION; |
938 | coroapi.transfer = api_transfer; |
1010 | coroapi.transfer = api_transfer; |
939 | } |
|
|
940 | |
1011 | |
941 | Coro::State |
1012 | Newz (0, main_stack, 1, coro_stack); |
942 | _newprocess(args) |
1013 | main_stack->idle_sp = (void *)-1; |
943 | SV * args |
1014 | |
944 | PROTOTYPE: $ |
1015 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
|
|
1016 | } |
|
|
1017 | |
|
|
1018 | SV * |
|
|
1019 | new (char *klass, ...) |
945 | CODE: |
1020 | CODE: |
946 | Coro__State coro; |
1021 | { |
|
|
1022 | struct coro *coro; |
|
|
1023 | HV *hv; |
|
|
1024 | int i; |
947 | |
1025 | |
948 | if (!SvROK (args) || SvTYPE (SvRV (args)) != SVt_PVAV) |
|
|
949 | croak ("Coro::State::_newprocess expects an arrayref"); |
|
|
950 | |
|
|
951 | Newz (0, coro, 1, struct coro); |
1026 | Newz (0, coro, 1, struct coro); |
|
|
1027 | coro->args = newAV (); |
952 | |
1028 | |
953 | coro->args = (AV *)SvREFCNT_inc (SvRV (args)); |
1029 | hv = newHV (); |
|
|
1030 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
|
|
1031 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
|
|
1032 | |
|
|
1033 | for (i = 1; i < items; i++) |
|
|
1034 | av_push (coro->args, newSVsv (ST (i))); |
|
|
1035 | |
|
|
1036 | coro->stack = main_stack; |
954 | /*coro->mainstack = 0; *//*actual work is done inside transfer */ |
1037 | /*coro->mainstack = 0; *//*actual work is done inside transfer */ |
955 | /*coro->stack = 0;*/ |
1038 | /*coro->stack = 0;*/ |
956 | |
1039 | } |
957 | RETVAL = coro; |
|
|
958 | OUTPUT: |
1040 | OUTPUT: |
959 | RETVAL |
1041 | RETVAL |
960 | |
1042 | |
961 | void |
1043 | void |
962 | transfer(prev, next, flags) |
1044 | _set_stacklevel (...) |
963 | SV *prev |
1045 | ALIAS: |
964 | SV *next |
1046 | Coro::State::transfer = 1 |
965 | int flags |
1047 | Coro::schedule = 2 |
966 | PROTOTYPE: @ |
1048 | Coro::cede = 3 |
|
|
1049 | Coro::Cont::yield = 4 |
967 | CODE: |
1050 | CODE: |
968 | PUTBACK; |
1051 | { |
969 | SV_CORO (next, "Coro::transfer"); |
1052 | struct transfer_args ta; |
970 | SV_CORO (prev, "Coro::transfer"); |
1053 | |
971 | transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
1054 | switch (ix) |
972 | SPAGAIN; |
1055 | { |
|
|
1056 | case 0: |
|
|
1057 | ta.prev = (struct coro *)INT2PTR (coro_stack *, SvIV (ST (0))); |
|
|
1058 | ta.next = 0; |
|
|
1059 | ta.flags = TRANSFER_SET_STACKLEVEL; |
|
|
1060 | break; |
|
|
1061 | |
|
|
1062 | case 1: |
|
|
1063 | if (items != 3) |
|
|
1064 | croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items); |
|
|
1065 | |
|
|
1066 | prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2))); |
|
|
1067 | break; |
|
|
1068 | |
|
|
1069 | case 2: |
|
|
1070 | prepare_schedule (&ta); |
|
|
1071 | break; |
|
|
1072 | |
|
|
1073 | case 3: |
|
|
1074 | prepare_cede (&ta); |
|
|
1075 | break; |
|
|
1076 | |
|
|
1077 | case 4: |
|
|
1078 | { |
|
|
1079 | SV *yieldstack; |
|
|
1080 | SV *sv; |
|
|
1081 | AV *defav = GvAV (PL_defgv); |
|
|
1082 | |
|
|
1083 | yieldstack = *hv_fetch ( |
|
|
1084 | (HV *)SvRV (GvSV (coro_current)), |
|
|
1085 | "yieldstack", sizeof ("yieldstack") - 1, |
|
|
1086 | 0 |
|
|
1087 | ); |
|
|
1088 | |
|
|
1089 | /* set up @_ -- ugly */ |
|
|
1090 | av_clear (defav); |
|
|
1091 | av_fill (defav, items - 1); |
|
|
1092 | while (items--) |
|
|
1093 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
|
|
1094 | |
|
|
1095 | sv = av_pop ((AV *)SvRV (yieldstack)); |
|
|
1096 | ta.prev = SvSTATE (*av_fetch ((AV *)SvRV (sv), 0, 0)); |
|
|
1097 | ta.next = SvSTATE (*av_fetch ((AV *)SvRV (sv), 1, 0)); |
|
|
1098 | ta.flags = 0; |
|
|
1099 | SvREFCNT_dec (sv); |
|
|
1100 | } |
|
|
1101 | break; |
|
|
1102 | |
|
|
1103 | } |
|
|
1104 | |
|
|
1105 | TRANSFER (ta); |
|
|
1106 | } |
973 | |
1107 | |
974 | void |
1108 | void |
975 | DESTROY(coro) |
1109 | _clone_state_from (SV *dst, SV *src) |
976 | Coro::State coro |
1110 | CODE: |
977 | CODE: |
1111 | { |
|
|
1112 | struct coro *coro_src = SvSTATE (src); |
978 | |
1113 | |
979 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1114 | sv_unmagic (SvRV (dst), PERL_MAGIC_ext); |
980 | { |
|
|
981 | struct coro temp; |
|
|
982 | |
1115 | |
983 | PUTBACK; |
1116 | ++coro_src->refcnt; |
984 | SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL); |
1117 | sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP; |
985 | LOAD (aTHX_ coro); |
1118 | } |
986 | SPAGAIN; |
|
|
987 | |
|
|
988 | destroy_stacks (aTHX); |
|
|
989 | |
|
|
990 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
|
|
991 | SPAGAIN; |
|
|
992 | |
|
|
993 | coro->mainstack = 0; |
|
|
994 | } |
|
|
995 | |
|
|
996 | deallocate_stack (coro); |
|
|
997 | SvREFCNT_dec (coro->args); |
|
|
998 | Safefree (coro); |
|
|
999 | |
1119 | |
1000 | void |
1120 | void |
|
|
1121 | _nonlocal_goto (IV nextop) |
|
|
1122 | CODE: |
|
|
1123 | /* uuh, somebody will kill me again for this */ |
|
|
1124 | PL_op->op_next = INT2PTR (OP *, nextop); |
|
|
1125 | |
|
|
1126 | void |
1001 | _exit(code) |
1127 | _exit (code) |
1002 | int code |
1128 | int code |
1003 | PROTOTYPE: $ |
1129 | PROTOTYPE: $ |
1004 | CODE: |
1130 | CODE: |
1005 | _exit (code); |
1131 | _exit (code); |
1006 | |
1132 | |
1007 | MODULE = Coro::State PACKAGE = Coro::Cont |
|
|
1008 | |
|
|
1009 | void |
|
|
1010 | yield(...) |
|
|
1011 | PROTOTYPE: @ |
|
|
1012 | CODE: |
|
|
1013 | SV *yieldstack; |
|
|
1014 | SV *sv; |
|
|
1015 | AV *defav = GvAV (PL_defgv); |
|
|
1016 | struct coro *prev, *next; |
|
|
1017 | |
|
|
1018 | yieldstack = *hv_fetch ( |
|
|
1019 | (HV *)SvRV (GvSV (coro_current)), |
|
|
1020 | "yieldstack", sizeof ("yieldstack") - 1, |
|
|
1021 | 0 |
|
|
1022 | ); |
|
|
1023 | |
|
|
1024 | /* set up @_ -- ugly */ |
|
|
1025 | av_clear (defav); |
|
|
1026 | av_fill (defav, items - 1); |
|
|
1027 | while (items--) |
|
|
1028 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
|
|
1029 | |
|
|
1030 | sv = av_pop ((AV *)SvRV (yieldstack)); |
|
|
1031 | prev = INT2PTR (struct coro *, SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 0, 0)))); |
|
|
1032 | next = INT2PTR (struct coro *, SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0)))); |
|
|
1033 | SvREFCNT_dec (sv); |
|
|
1034 | |
|
|
1035 | transfer (aTHX_ prev, next, 0); |
|
|
1036 | |
|
|
1037 | MODULE = Coro::State PACKAGE = Coro |
1133 | MODULE = Coro::State PACKAGE = Coro |
1038 | |
1134 | |
1039 | BOOT: |
1135 | BOOT: |
1040 | { |
1136 | { |
1041 | int i; |
1137 | int i; |
|
|
1138 | |
1042 | HV *stash = gv_stashpv ("Coro", TRUE); |
1139 | coro_stash = gv_stashpv ("Coro", TRUE); |
1043 | |
1140 | |
1044 | newCONSTSUB (stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1141 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1045 | newCONSTSUB (stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1142 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1046 | newCONSTSUB (stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1143 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1047 | newCONSTSUB (stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1144 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1048 | newCONSTSUB (stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1145 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1049 | newCONSTSUB (stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1146 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1050 | |
1147 | |
1051 | coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV); |
1148 | coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV); |
1052 | coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV); |
1149 | coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV); |
1053 | |
1150 | |
1054 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1151 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
… | |
… | |
1067 | sv_setiv (sv, (IV)&coroapi); |
1164 | sv_setiv (sv, (IV)&coroapi); |
1068 | SvREADONLY_on (sv); |
1165 | SvREADONLY_on (sv); |
1069 | } |
1166 | } |
1070 | } |
1167 | } |
1071 | |
1168 | |
1072 | #if !PERL_MICRO |
1169 | int |
|
|
1170 | prio (Coro::State coro, int newprio = 0) |
|
|
1171 | ALIAS: |
|
|
1172 | nice = 1 |
|
|
1173 | CODE: |
|
|
1174 | { |
|
|
1175 | RETVAL = coro->prio; |
|
|
1176 | |
|
|
1177 | if (items > 1) |
|
|
1178 | { |
|
|
1179 | if (ix) |
|
|
1180 | newprio += coro->prio; |
|
|
1181 | |
|
|
1182 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
|
|
1183 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
|
|
1184 | |
|
|
1185 | coro->prio = newprio; |
|
|
1186 | } |
|
|
1187 | } |
1073 | |
1188 | |
1074 | void |
1189 | void |
1075 | ready(self) |
1190 | ready (SV *self) |
1076 | SV * self |
|
|
1077 | PROTOTYPE: $ |
1191 | PROTOTYPE: $ |
1078 | CODE: |
1192 | CODE: |
1079 | api_ready (self); |
1193 | api_ready (self); |
1080 | |
1194 | |
1081 | #endif |
|
|
1082 | |
|
|
1083 | int |
1195 | int |
1084 | nready(...) |
1196 | nready (...) |
1085 | PROTOTYPE: |
1197 | PROTOTYPE: |
1086 | CODE: |
1198 | CODE: |
1087 | RETVAL = coro_nready; |
1199 | RETVAL = coro_nready; |
1088 | OUTPUT: |
1200 | OUTPUT: |
1089 | RETVAL |
1201 | RETVAL |
1090 | |
1202 | |
1091 | void |
1203 | MODULE = Coro::State PACKAGE = Coro::AIO |
1092 | schedule(...) |
|
|
1093 | PROTOTYPE: |
|
|
1094 | CODE: |
|
|
1095 | api_schedule (); |
|
|
1096 | |
1204 | |
1097 | void |
|
|
1098 | cede(...) |
|
|
1099 | PROTOTYPE: |
|
|
1100 | CODE: |
|
|
1101 | api_cede (); |
|
|
1102 | |
|
|
1103 | # and these are hacks |
|
|
1104 | SV * |
1205 | SV * |
1105 | _aio_get_state () |
1206 | _get_state () |
1106 | CODE: |
1207 | CODE: |
1107 | { |
1208 | { |
1108 | struct { |
1209 | struct { |
1109 | int errorno; |
1210 | int errorno; |
1110 | int laststype; |
1211 | int laststype; |
… | |
… | |
1121 | } |
1222 | } |
1122 | OUTPUT: |
1223 | OUTPUT: |
1123 | RETVAL |
1224 | RETVAL |
1124 | |
1225 | |
1125 | void |
1226 | void |
1126 | _aio_set_state (char *data_) |
1227 | _set_state (char *data_) |
1127 | PROTOTYPE: $ |
1228 | PROTOTYPE: $ |
1128 | CODE: |
1229 | CODE: |
1129 | { |
1230 | { |
1130 | struct { |
1231 | struct { |
1131 | int errorno; |
1232 | int errorno; |