… | |
… | |
16 | # undef HAVE_MMAP |
16 | # undef HAVE_MMAP |
17 | # endif |
17 | # endif |
18 | # endif |
18 | # endif |
19 | #endif |
19 | #endif |
20 | |
20 | |
21 | #define MAY_FLUSH /* increases codesize */ |
21 | #define MAY_FLUSH /* increases codesize and is rarely used */ |
22 | |
|
|
23 | /* perl-related */ |
|
|
24 | #define TRANSFER_SAVE_DEFAV 0x00000001 |
|
|
25 | #define TRANSFER_SAVE_DEFSV 0x00000002 |
|
|
26 | #define TRANSFER_SAVE_ERRSV 0x00000004 |
|
|
27 | /* c-related */ |
|
|
28 | #define TRANSFER_SAVE_CCTXT 0x00000008 |
|
|
29 | #ifdef CORO_LAZY_STACK |
|
|
30 | # define TRANSFER_LAZY_STACK 0x00000010 |
|
|
31 | #else |
|
|
32 | # define TRANSFER_LAZY_STACK 0x00000000 |
|
|
33 | #endif |
|
|
34 | |
|
|
35 | #define TRANSFER_SAVE_ALL (TRANSFER_SAVE_DEFAV|TRANSFER_SAVE_DEFSV \ |
|
|
36 | |TRANSFER_SAVE_ERRSV|TRANSFER_SAVE_CCTXT) |
|
|
37 | |
22 | |
38 | #define SUB_INIT "Coro::State::initialize" |
23 | #define SUB_INIT "Coro::State::initialize" |
39 | #define UCORO_STATE "_coro_state" |
24 | #define UCORO_STATE "_coro_state" |
40 | |
25 | |
41 | /* The next macro should delcare a variable stacklevel that contains and approximation |
26 | /* The next macro should declare a variable stacklevel that contains and approximation |
42 | * to the current C stack pointer. It's property is that it changes with each call |
27 | * to the current C stack pointer. Its property is that it changes with each call |
43 | * and should be unique. */ |
28 | * and should be unique. */ |
44 | #define dSTACKLEVEL void *stacklevel = &stacklevel |
29 | #define dSTACKLEVEL void *stacklevel = &stacklevel |
45 | |
30 | |
46 | #define labs(l) ((l) >= 0 ? (l) : -(l)) |
31 | #define labs(l) ((l) >= 0 ? (l) : -(l)) |
|
|
32 | |
|
|
33 | #include "CoroAPI.h" |
|
|
34 | |
|
|
35 | static struct CoroAPI coroapi; |
47 | |
36 | |
48 | /* this is actually not only the c stack but also c registers etc... */ |
37 | /* this is actually not only the c stack but also c registers etc... */ |
49 | typedef struct { |
38 | typedef struct { |
50 | int refcnt; /* pointer reference counter */ |
39 | int refcnt; /* pointer reference counter */ |
51 | int usecnt; /* shared by how many coroutines */ |
40 | int usecnt; /* shared by how many coroutines */ |
… | |
… | |
206 | |
195 | |
207 | return newpadlist; |
196 | return newpadlist; |
208 | } |
197 | } |
209 | |
198 | |
210 | #ifdef MAY_FLUSH |
199 | #ifdef MAY_FLUSH |
211 | STATIC AV * |
200 | STATIC void |
212 | free_padlist (AV *padlist) |
201 | free_padlist (AV *padlist) |
213 | { |
202 | { |
214 | /* may be during global destruction */ |
203 | /* may be during global destruction */ |
215 | if (SvREFCNT(padlist)) |
204 | if (SvREFCNT(padlist)) |
216 | { |
205 | { |
… | |
… | |
281 | #endif |
270 | #endif |
282 | |
271 | |
283 | #define SB do { |
272 | #define SB do { |
284 | #define SE } while (0) |
273 | #define SE } while (0) |
285 | |
274 | |
286 | #define LOAD(state) SB load_state(aTHX_ (state)); SPAGAIN; SE |
275 | #define LOAD(state) load_state(aTHX_ (state)); |
287 | #define SAVE(state,flags) SB PUTBACK; save_state(aTHX_ (state),(flags)); SE |
276 | #define SAVE(state,flags) save_state(aTHX_ (state),(flags)); |
288 | |
277 | |
289 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE |
278 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE |
290 | |
279 | |
291 | static void |
280 | static void |
292 | load_state(pTHX_ Coro__State c) |
281 | load_state(pTHX_ Coro__State c) |
… | |
… | |
366 | |
355 | |
367 | PUSHs (Nullsv); |
356 | PUSHs (Nullsv); |
368 | /* this loop was inspired by pp_caller */ |
357 | /* this loop was inspired by pp_caller */ |
369 | for (;;) |
358 | for (;;) |
370 | { |
359 | { |
371 | do |
360 | while (cxix >= 0) |
372 | { |
361 | { |
373 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
362 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
374 | |
363 | |
375 | if (CxTYPE(cx) == CXt_SUB) |
364 | if (CxTYPE(cx) == CXt_SUB) |
376 | { |
365 | { |
… | |
… | |
402 | /* I never used formats, so how should I know how these are implemented? */ |
391 | /* I never used formats, so how should I know how these are implemented? */ |
403 | /* my bold guess is as a simple, plain sub... */ |
392 | /* my bold guess is as a simple, plain sub... */ |
404 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
393 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
405 | } |
394 | } |
406 | } |
395 | } |
407 | while (cxix >= 0); |
|
|
408 | |
396 | |
409 | if (top_si->si_type == PERLSI_MAIN) |
397 | if (top_si->si_type == PERLSI_MAIN) |
410 | break; |
398 | break; |
411 | |
399 | |
412 | top_si = top_si->si_prev; |
400 | top_si = top_si->si_prev; |
… | |
… | |
418 | } |
406 | } |
419 | |
407 | |
420 | c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
408 | c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
421 | c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
409 | c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
422 | c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
410 | c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
423 | |
|
|
424 | /* I have not the slightest idea of why av_reify is necessary */ |
|
|
425 | /* but if it's missing the defav contents magically get replaced sometimes */ |
|
|
426 | if (c->defav) |
|
|
427 | av_reify (c->defav); |
|
|
428 | |
411 | |
429 | c->dowarn = PL_dowarn; |
412 | c->dowarn = PL_dowarn; |
430 | c->in_eval = PL_in_eval; |
413 | c->in_eval = PL_in_eval; |
431 | |
414 | |
432 | c->curstackinfo = PL_curstackinfo; |
415 | c->curstackinfo = PL_curstackinfo; |
… | |
… | |
504 | * still there is a memleak of 128 bytes... |
487 | * still there is a memleak of 128 bytes... |
505 | */ |
488 | */ |
506 | STATIC void |
489 | STATIC void |
507 | destroy_stacks(pTHX) |
490 | destroy_stacks(pTHX) |
508 | { |
491 | { |
|
|
492 | int destruct = PL_main_cv != Nullcv; |
|
|
493 | |
|
|
494 | if (destruct) |
|
|
495 | { |
509 | /* is this ugly, I ask? */ |
496 | /* is this ugly, I ask? */ |
510 | while (PL_scopestack_ix) |
497 | while (PL_scopestack_ix) |
511 | LEAVE; |
498 | LEAVE; |
512 | |
499 | |
513 | /* sure it is, but more important: is it correct?? :/ */ |
500 | /* sure it is, but more important: is it correct?? :/ */ |
514 | while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */ |
501 | while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */ |
515 | FREETMPS; |
502 | FREETMPS; |
|
|
503 | } |
516 | |
504 | |
517 | while (PL_curstackinfo->si_next) |
505 | while (PL_curstackinfo->si_next) |
518 | PL_curstackinfo = PL_curstackinfo->si_next; |
506 | PL_curstackinfo = PL_curstackinfo->si_next; |
519 | |
507 | |
520 | while (PL_curstackinfo) |
508 | while (PL_curstackinfo) |
… | |
… | |
525 | dSP; |
513 | dSP; |
526 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
514 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
527 | PUTBACK; /* possibly superfluous */ |
515 | PUTBACK; /* possibly superfluous */ |
528 | } |
516 | } |
529 | |
517 | |
|
|
518 | if (destruct) |
|
|
519 | { |
530 | dounwind(-1); |
520 | dounwind(-1); |
531 | |
|
|
532 | SvREFCNT_dec(PL_curstackinfo->si_stack); |
521 | SvREFCNT_dec(PL_curstackinfo->si_stack); |
|
|
522 | } |
|
|
523 | |
533 | Safefree(PL_curstackinfo->si_cxstack); |
524 | Safefree(PL_curstackinfo->si_cxstack); |
534 | Safefree(PL_curstackinfo); |
525 | Safefree(PL_curstackinfo); |
535 | PL_curstackinfo = p; |
526 | PL_curstackinfo = p; |
536 | } |
527 | } |
537 | |
528 | |
… | |
… | |
659 | { |
650 | { |
660 | /* |
651 | /* |
661 | * this is a _very_ stripped down perl interpreter ;) |
652 | * this is a _very_ stripped down perl interpreter ;) |
662 | */ |
653 | */ |
663 | Coro__State ctx = (Coro__State)arg; |
654 | Coro__State ctx = (Coro__State)arg; |
|
|
655 | JMPENV coro_start_env; |
664 | |
656 | |
665 | /*FIXME*//* must set up top_env here */ |
657 | /* same as JMPENV_BOOTSTRAP */ |
|
|
658 | Zero(&coro_start_env, 1, JMPENV); |
|
|
659 | coro_start_env.je_ret = -1; |
|
|
660 | coro_start_env.je_mustcatch = TRUE; |
|
|
661 | PL_top_env = &coro_start_env; |
|
|
662 | |
666 | ctx->cursp = 0; |
663 | ctx->cursp = 0; |
667 | PL_op = PL_op->op_next; |
664 | PL_op = PL_op->op_next; |
668 | CALLRUNOPS(aTHX); |
665 | CALLRUNOPS(aTHX); |
669 | |
666 | |
670 | abort (); |
667 | abort (); |
671 | } |
668 | } |
672 | |
669 | |
673 | STATIC void |
670 | STATIC void |
674 | transfer(pTHX_ struct coro *prev, struct coro *next, int flags) |
671 | transfer(pTHX_ struct coro *prev, struct coro *next, int flags) |
675 | { |
672 | { |
676 | dSP; |
|
|
677 | dSTACKLEVEL; |
673 | dSTACKLEVEL; |
|
|
674 | static struct coro *xnext; |
678 | |
675 | |
679 | if (prev != next) |
676 | if (prev != next) |
680 | { |
677 | { |
|
|
678 | xnext = next; |
|
|
679 | |
681 | if (next->mainstack) |
680 | if (next->mainstack) |
682 | { |
681 | { |
683 | SAVE (prev, flags); |
682 | SAVE (prev, flags); |
684 | LOAD (next); |
683 | LOAD (next); |
685 | |
684 | |
… | |
… | |
708 | continue_coro, (void *)next, |
707 | continue_coro, (void *)next, |
709 | next->stack->sptr, labs (next->stack->ssize)); |
708 | next->stack->sptr, labs (next->stack->ssize)); |
710 | } |
709 | } |
711 | |
710 | |
712 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
711 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
|
|
712 | /* don't add any code here */ |
713 | } |
713 | } |
714 | |
714 | |
715 | } |
715 | } |
716 | else if (next->tmps_ix == -2) |
716 | else if (next->tmps_ix == -2) |
717 | croak ("tried to transfer to running coroutine"); |
717 | croak ("tried to transfer to running coroutine"); |
… | |
… | |
738 | allocate_stack (next, 1); |
738 | allocate_stack (next, 1); |
739 | coro_create (&(next->stack->cctx), |
739 | coro_create (&(next->stack->cctx), |
740 | setup_coro, (void *)next, |
740 | setup_coro, (void *)next, |
741 | next->stack->sptr, labs (next->stack->ssize)); |
741 | next->stack->sptr, labs (next->stack->ssize)); |
742 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
742 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
|
|
743 | /* don't add any code here */ |
743 | } |
744 | } |
744 | } |
745 | } |
745 | else |
746 | else |
746 | setup_coro (next); |
747 | setup_coro (next); |
747 | } |
748 | } |
748 | } |
749 | } |
749 | |
750 | |
|
|
751 | /* |
|
|
752 | * xnext is now either prev or next, depending on wether |
|
|
753 | * we switched the c stack or not. that's why i use a global |
|
|
754 | * variable, that should become thread-specific at one point. |
|
|
755 | */ |
750 | next->cursp = stacklevel; |
756 | xnext->cursp = stacklevel; |
751 | } |
757 | } |
752 | |
758 | |
753 | static struct coro * |
759 | static struct coro * |
754 | sv_to_coro (SV *arg, const char *funcname, const char *varname) |
760 | sv_to_coro (SV *arg, const char *funcname, const char *varname) |
755 | { |
761 | { |
756 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVHV) |
762 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVHV) |
757 | { |
763 | { |
758 | HE *he = hv_fetch_ent((HV *)SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash); |
764 | HE *he = hv_fetch_ent((HV *)SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash); |
759 | |
765 | |
760 | if (!he) |
766 | if (!he) |
761 | croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", funcname, varname); |
767 | croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", funcname, varname); |
762 | |
768 | |
763 | arg = HeVAL(he); |
769 | arg = HeVAL(he); |
764 | } |
770 | } |
765 | |
771 | |
766 | /* must also be changed inside Coro::Cont::yield */ |
772 | /* must also be changed inside Coro::Cont::yield */ |
|
|
773 | if (SvROK(arg) && SvOBJECT(SvRV(arg)) |
767 | if (SvROK(arg) && SvSTASH(SvRV(arg)) == coro_state_stash) |
774 | && SvSTASH(SvRV(arg)) == coro_state_stash) |
768 | return (struct coro *) SvIV((SV*)SvRV(arg)); |
775 | return (struct coro *) SvIV((SV*)SvRV(arg)); |
769 | else |
776 | |
770 | croak ("%s() -- %s is not (and contains not) a Coro::State object", funcname, varname); |
777 | croak ("%s() -- %s is not (and contains not) a Coro::State object", funcname, varname); |
|
|
778 | /*NORETURN*/ |
|
|
779 | } |
|
|
780 | |
|
|
781 | static void |
|
|
782 | api_transfer(pTHX_ SV *prev, SV *next, int flags) |
|
|
783 | { |
|
|
784 | transfer(aTHX_ |
|
|
785 | sv_to_coro (prev, "Coro::transfer", "prev"), |
|
|
786 | sv_to_coro (next, "Coro::transfer", "next"), |
|
|
787 | flags); |
771 | } |
788 | } |
772 | |
789 | |
773 | /** Coro ********************************************************************/ |
790 | /** Coro ********************************************************************/ |
774 | |
791 | |
775 | #define PRIO_MAX 3 |
792 | #define PRIO_MAX 3 |
… | |
… | |
780 | #define PRIO_MIN -4 |
797 | #define PRIO_MIN -4 |
781 | |
798 | |
782 | /* for Coro.pm */ |
799 | /* for Coro.pm */ |
783 | static GV *coro_current, *coro_idle; |
800 | static GV *coro_current, *coro_idle; |
784 | static AV *coro_ready[PRIO_MAX-PRIO_MIN+1]; |
801 | static AV *coro_ready[PRIO_MAX-PRIO_MIN+1]; |
|
|
802 | static int coro_nready; |
785 | |
803 | |
786 | static void |
804 | static void |
787 | coro_enq (SV *sv) |
805 | coro_enq (SV *sv) |
788 | { |
806 | { |
789 | if (SvROK (sv)) |
807 | if (SvROK (sv)) |
… | |
… | |
797 | prio = prio > PRIO_MAX ? PRIO_MAX |
815 | prio = prio > PRIO_MAX ? PRIO_MAX |
798 | : prio < PRIO_MIN ? PRIO_MIN |
816 | : prio < PRIO_MIN ? PRIO_MIN |
799 | : prio; |
817 | : prio; |
800 | |
818 | |
801 | av_push (coro_ready [prio - PRIO_MIN], sv); |
819 | av_push (coro_ready [prio - PRIO_MIN], sv); |
|
|
820 | coro_nready++; |
802 | |
821 | |
803 | return; |
822 | return; |
804 | } |
823 | } |
805 | } |
824 | } |
806 | |
825 | |
… | |
… | |
816 | if (min_prio < 0) |
835 | if (min_prio < 0) |
817 | min_prio = 0; |
836 | min_prio = 0; |
818 | |
837 | |
819 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
838 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
820 | if (av_len (coro_ready[prio]) >= 0) |
839 | if (av_len (coro_ready[prio]) >= 0) |
|
|
840 | { |
|
|
841 | coro_nready--; |
821 | return av_shift (coro_ready[prio]); |
842 | return av_shift (coro_ready[prio]); |
|
|
843 | } |
822 | |
844 | |
823 | return 0; |
845 | return 0; |
|
|
846 | } |
|
|
847 | |
|
|
848 | static void |
|
|
849 | api_ready (SV *coro) |
|
|
850 | { |
|
|
851 | coro_enq (SvREFCNT_inc (coro)); |
|
|
852 | } |
|
|
853 | |
|
|
854 | static void |
|
|
855 | api_schedule (int cede) |
|
|
856 | { |
|
|
857 | SV *prev, *next; |
|
|
858 | |
|
|
859 | prev = GvSV (coro_current); |
|
|
860 | |
|
|
861 | if (cede) |
|
|
862 | coro_enq (SvREFCNT_inc (prev)); |
|
|
863 | |
|
|
864 | next = coro_deq (PRIO_MIN); |
|
|
865 | |
|
|
866 | if (!next) |
|
|
867 | next = SvREFCNT_inc (GvSV (coro_idle)); |
|
|
868 | |
|
|
869 | GvSV (coro_current) = SvREFCNT_inc (next); |
|
|
870 | transfer (aTHX_ |
|
|
871 | sv_to_coro (prev, "Coro::schedule", "current coroutine"), |
|
|
872 | sv_to_coro (next, "Coro::schedule", "next coroutine"), |
|
|
873 | TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK); |
|
|
874 | SvREFCNT_dec (next); |
|
|
875 | SvREFCNT_dec (prev); |
824 | } |
876 | } |
825 | |
877 | |
826 | MODULE = Coro::State PACKAGE = Coro::State |
878 | MODULE = Coro::State PACKAGE = Coro::State |
827 | |
879 | |
828 | PROTOTYPES: ENABLE |
880 | PROTOTYPES: ENABLE |
… | |
… | |
840 | |
892 | |
841 | if (!padlist_cache) |
893 | if (!padlist_cache) |
842 | padlist_cache = newHV (); |
894 | padlist_cache = newHV (); |
843 | |
895 | |
844 | main_mainstack = PL_mainstack; |
896 | main_mainstack = PL_mainstack; |
|
|
897 | |
|
|
898 | coroapi.ver = CORO_API_VERSION; |
|
|
899 | coroapi.transfer = api_transfer; |
845 | } |
900 | } |
846 | |
901 | |
847 | Coro::State |
902 | Coro::State |
848 | _newprocess(args) |
903 | _newprocess(args) |
849 | SV * args |
904 | SV * args |
… | |
… | |
882 | |
937 | |
883 | if (coro->mainstack && coro->mainstack != main_mainstack) |
938 | if (coro->mainstack && coro->mainstack != main_mainstack) |
884 | { |
939 | { |
885 | struct coro temp; |
940 | struct coro temp; |
886 | |
941 | |
|
|
942 | PUTBACK; |
887 | SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL); |
943 | SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL); |
888 | LOAD(aTHX_ coro); |
944 | LOAD(aTHX_ coro); |
|
|
945 | SPAGAIN; |
889 | |
946 | |
890 | destroy_stacks (aTHX); |
947 | destroy_stacks (aTHX); |
891 | |
948 | |
892 | LOAD((&temp)); /* this will get rid of defsv etc.. */ |
949 | LOAD((&temp)); /* this will get rid of defsv etc.. */ |
|
|
950 | SPAGAIN; |
893 | |
951 | |
894 | coro->mainstack = 0; |
952 | coro->mainstack = 0; |
895 | } |
953 | } |
896 | |
954 | |
897 | deallocate_stack (coro); |
955 | deallocate_stack (coro); |
… | |
… | |
967 | coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV); |
1025 | coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV); |
968 | coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV); |
1026 | coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV); |
969 | |
1027 | |
970 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1028 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
971 | coro_ready[i] = newAV (); |
1029 | coro_ready[i] = newAV (); |
|
|
1030 | |
|
|
1031 | { |
|
|
1032 | SV *sv = perl_get_sv("Coro::API", 1); |
|
|
1033 | |
|
|
1034 | coroapi.schedule = api_schedule; |
|
|
1035 | coroapi.ready = api_ready; |
|
|
1036 | coroapi.nready = &coro_nready; |
|
|
1037 | coroapi.current = coro_current; |
|
|
1038 | |
|
|
1039 | GCoroAPI = &coroapi; |
|
|
1040 | sv_setiv(sv, (IV)&coroapi); |
|
|
1041 | SvREADONLY_on(sv); |
|
|
1042 | } |
972 | } |
1043 | } |
973 | |
1044 | |
974 | void |
1045 | void |
975 | ready(self) |
1046 | ready(self) |
976 | SV * self |
1047 | SV * self |
977 | CODE: |
1048 | CODE: |
978 | coro_enq (SvREFCNT_inc (self)); |
1049 | api_ready (self); |
|
|
1050 | |
|
|
1051 | int |
|
|
1052 | nready(...) |
|
|
1053 | PROTOTYPE: |
|
|
1054 | CODE: |
|
|
1055 | RETVAL = coro_nready; |
|
|
1056 | OUTPUT: |
|
|
1057 | RETVAL |
979 | |
1058 | |
980 | void |
1059 | void |
981 | schedule(...) |
1060 | schedule(...) |
|
|
1061 | PROTOTYPE: |
982 | ALIAS: |
1062 | ALIAS: |
983 | cede = 1 |
1063 | cede = 1 |
984 | CODE: |
1064 | CODE: |
985 | SV *prev, *next; |
1065 | api_schedule (ix); |
986 | |
1066 | |
987 | prev = GvSV (coro_current); |
|
|
988 | |
|
|
989 | if (ix) |
|
|
990 | coro_enq (SvREFCNT_inc (prev)); |
|
|
991 | |
|
|
992 | next = coro_deq (PRIO_MIN); |
|
|
993 | |
|
|
994 | if (!next) |
|
|
995 | next = SvREFCNT_inc (GvSV (coro_idle)); |
|
|
996 | |
|
|
997 | GvSV (coro_current) = SvREFCNT_inc (next); |
|
|
998 | transfer (sv_to_coro (prev, "Coro::schedule", "current coroutine"), |
|
|
999 | sv_to_coro (next, "Coro::schedule", "next coroutine"), |
|
|
1000 | TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK); |
|
|
1001 | SvREFCNT_dec (next); |
|
|
1002 | SvREFCNT_dec (prev); |
|
|
1003 | |
|
|