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Comparing Coro/Coro/State.xs (file contents):
Revision 1.16 by root, Wed Jul 25 04:26:55 2001 UTC vs.
Revision 1.32 by root, Sun Aug 26 17:01:54 2001 UTC

1#include "EXTERN.h" 1#include "EXTERN.h"
2#include "perl.h" 2#include "perl.h"
3#include "XSUB.h" 3#include "XSUB.h"
4 4
5#include "libcoro/coro.c" 5#include "libcoro/coro.c"
6
7#include <signal.h>
6 8
7#ifdef HAVE_MMAP 9#ifdef HAVE_MMAP
8# include <unistd.h> 10# include <unistd.h>
9# include <sys/mman.h> 11# include <sys/mman.h>
10# ifndef MAP_ANON 12# ifndef MAP_ANON
… …
14# undef HAVE_MMAP 16# undef HAVE_MMAP
15# endif 17# endif
16# endif 18# endif
17#endif 19#endif
18 20
19#define MAY_FLUSH /* increases codesize */ 21#define MAY_FLUSH /* increases codesize and is rarely used */
20
21/* perl-related */
22#define TRANSFER_SAVE_DEFAV 0x00000001
23#define TRANSFER_SAVE_DEFSV 0x00000002
24#define TRANSFER_SAVE_ERRSV 0x00000004
25/* c-related */
26#define TRANSFER_SAVE_CCTXT 0x00000008
27#ifdef CORO_LAZY_STACK
28# define TRANSFER_LAZY_STACK 0x00000010
29#else
30# define TRANSFER_LAZY_STACK 0x00000000
31#endif
32
33#define TRANSFER_SAVE_ALL (TRANSFER_SAVE_DEFAV|TRANSFER_SAVE_DEFSV \
34 |TRANSFER_SAVE_ERRSV|TRANSFER_SAVE_CCTXT)
35 22
36#define SUB_INIT "Coro::State::initialize" 23#define SUB_INIT "Coro::State::initialize"
37#define UCORO_STATE "_coro_state" 24#define UCORO_STATE "_coro_state"
38 25
39/* 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
40 * 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
41 * and should be unique. */ 28 * and should be unique. */
42#define dSTACKLEVEL void *stacklevel = &stacklevel 29#define dSTACKLEVEL void *stacklevel = &stacklevel
43 30
44#define labs(l) ((l) >= 0 ? (l) : -(l)) 31#define labs(l) ((l) >= 0 ? (l) : -(l))
32
33#include "CoroAPI.h"
34
35static struct CoroAPI coroapi;
45 36
46/* 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... */
47typedef struct { 38typedef struct {
48 int refcnt; /* pointer reference counter */ 39 int refcnt; /* pointer reference counter */
49 int usecnt; /* shared by how many coroutines */ 40 int usecnt; /* shared by how many coroutines */
… …
52 coro_context cctx; 43 coro_context cctx;
53 44
54 void *sptr; 45 void *sptr;
55 long ssize; /* positive == mmap, otherwise malloc */ 46 long ssize; /* positive == mmap, otherwise malloc */
56} coro_stack; 47} coro_stack;
57
58static coro_stack main_stack = { 1, 0, 0 };
59 48
60struct coro { 49struct coro {
61 /* the optional C context */ 50 /* the optional C context */
62 coro_stack *stack; 51 coro_stack *stack;
63 void *cursp; 52 void *cursp;
… …
68 SV *defsv; 57 SV *defsv;
69 SV *errsv; 58 SV *errsv;
70 59
71 /* saved global state not related to stacks */ 60 /* saved global state not related to stacks */
72 U8 dowarn; 61 U8 dowarn;
62 I32 in_eval;
73 63
74 /* the stacks and related info (callchain etc..) */ 64 /* the stacks and related info (callchain etc..) */
75 PERL_SI *curstackinfo; 65 PERL_SI *curstackinfo;
76 AV *curstack; 66 AV *curstack;
77 AV *mainstack; 67 AV *mainstack;
… …
95 I32 savestack_max; 85 I32 savestack_max;
96 OP **retstack; 86 OP **retstack;
97 I32 retstack_ix; 87 I32 retstack_ix;
98 I32 retstack_max; 88 I32 retstack_max;
99 COP *curcop; 89 COP *curcop;
100 JMPENV start_env;
101 JMPENV *top_env; 90 JMPENV *top_env;
102 91
103 /* data associated with this coroutine (initial args) */ 92 /* data associated with this coroutine (initial args) */
104 AV *args; 93 AV *args;
105}; 94};
… …
206 195
207 return newpadlist; 196 return newpadlist;
208} 197}
209 198
210#ifdef MAY_FLUSH 199#ifdef MAY_FLUSH
211STATIC AV * 200STATIC void
212free_padlist (AV *padlist) 201free_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
291static void 280static void
292load_state(pTHX_ Coro__State c) 281load_state(pTHX_ Coro__State c)
293{ 282{
294 PL_dowarn = c->dowarn; 283 PL_dowarn = c->dowarn;
284 PL_in_eval = c->in_eval;
295 285
296 PL_curstackinfo = c->curstackinfo; 286 PL_curstackinfo = c->curstackinfo;
297 PL_curstack = c->curstack; 287 PL_curstack = c->curstack;
298 PL_mainstack = c->mainstack; 288 PL_mainstack = c->mainstack;
299 PL_stack_sp = c->stack_sp; 289 PL_stack_sp = c->stack_sp;
… …
316 PL_savestack_max = c->savestack_max; 306 PL_savestack_max = c->savestack_max;
317 PL_retstack = c->retstack; 307 PL_retstack = c->retstack;
318 PL_retstack_ix = c->retstack_ix; 308 PL_retstack_ix = c->retstack_ix;
319 PL_retstack_max = c->retstack_max; 309 PL_retstack_max = c->retstack_max;
320 PL_curcop = c->curcop; 310 PL_curcop = c->curcop;
321 PL_start_env = c->start_env;
322 PL_top_env = c->top_env; 311 PL_top_env = c->top_env;
323 312
324 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 313 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
325 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 314 if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
326 if (c->errsv) REPLACE_SV (ERRSV , c->errsv); 315 if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
… …
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;
… …
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;
423 411
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
429 c->dowarn = PL_dowarn; 412 c->dowarn = PL_dowarn;
413 c->in_eval = PL_in_eval;
430 414
431 c->curstackinfo = PL_curstackinfo; 415 c->curstackinfo = PL_curstackinfo;
432 c->curstack = PL_curstack; 416 c->curstack = PL_curstack;
433 c->mainstack = PL_mainstack; 417 c->mainstack = PL_mainstack;
434 c->stack_sp = PL_stack_sp; 418 c->stack_sp = PL_stack_sp;
… …
451 c->savestack_max = PL_savestack_max; 435 c->savestack_max = PL_savestack_max;
452 c->retstack = PL_retstack; 436 c->retstack = PL_retstack;
453 c->retstack_ix = PL_retstack_ix; 437 c->retstack_ix = PL_retstack_ix;
454 c->retstack_max = PL_retstack_max; 438 c->retstack_max = PL_retstack_max;
455 c->curcop = PL_curcop; 439 c->curcop = PL_curcop;
456 c->start_env = PL_start_env;
457 c->top_env = PL_top_env; 440 c->top_env = PL_top_env;
458} 441}
459 442
460/* 443/*
461 * allocate various perl stacks. This is an exact copy 444 * allocate various perl stacks. This is an exact copy
… …
504 * still there is a memleak of 128 bytes... 487 * still there is a memleak of 128 bytes...
505 */ 488 */
506STATIC void 489STATIC void
507destroy_stacks(pTHX) 490destroy_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
… …
553 stack->usecnt = 1; 544 stack->usecnt = 1;
554 stack->gencnt = ctx->gencnt = 0; 545 stack->gencnt = ctx->gencnt = 0;
555 if (alloc) 546 if (alloc)
556 { 547 {
557#ifdef HAVE_MMAP 548#ifdef HAVE_MMAP
558 stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write */ 549 stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */
559 stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, 0, 0); 550 stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, 0, 0);
560 if (stack->sptr == (void *)-1) 551 if (stack->sptr == (void *)-1)
561#endif 552#endif
562 { 553 {
563 /*FIXME*//*D*//* reasonable stack size! */ 554 /*FIXME*//*D*//* reasonable stack size! */
… …
605 dSP; 596 dSP;
606 Coro__State ctx = (Coro__State)arg; 597 Coro__State ctx = (Coro__State)arg;
607 SV *sub_init = (SV*)get_cv(SUB_INIT, FALSE); 598 SV *sub_init = (SV*)get_cv(SUB_INIT, FALSE);
608 599
609 coro_init_stacks (aTHX); 600 coro_init_stacks (aTHX);
610 JMPENV_BOOTSTRAP;
611 SPAGAIN;
612
613 /*PL_curcop = 0;*/ 601 /*PL_curcop = 0;*/
602 /*PL_in_eval = PL_in_eval;*/ /* inherit */
614 SvREFCNT_dec (GvAV (PL_defgv)); 603 SvREFCNT_dec (GvAV (PL_defgv));
615 GvAV (PL_defgv) = ctx->args; 604 GvAV (PL_defgv) = ctx->args;
616 605
606 SPAGAIN;
607
617 if (ctx->stack) 608 if (ctx->stack)
618 { 609 {
619 ctx->cursp = 0; 610 ctx->cursp = 0;
620 611
621 PUSHMARK(SP); 612 PUSHMARK(SP);
622 PUTBACK; 613 PUTBACK;
623 (void) call_sv (sub_init, G_VOID|G_NOARGS); 614 (void) call_sv (sub_init, G_VOID|G_NOARGS|G_EVAL);
615
616 if (SvTRUE (ERRSV))
617 croak (NULL);
618 else
624 croak ("FATAL: CCTXT coroutine returned!"); 619 croak ("FATAL: CCTXT coroutine returned!");
625 } 620 }
626 else 621 else
627 { 622 {
628 UNOP myop; 623 UNOP myop;
629 624
… …
655{ 650{
656 /* 651 /*
657 * this is a _very_ stripped down perl interpreter ;) 652 * this is a _very_ stripped down perl interpreter ;)
658 */ 653 */
659 Coro__State ctx = (Coro__State)arg; 654 Coro__State ctx = (Coro__State)arg;
655 JMPENV coro_start_env;
656
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;
660 662
661 ctx->cursp = 0; 663 ctx->cursp = 0;
662 PL_op = PL_op->op_next; 664 PL_op = PL_op->op_next;
663 CALLRUNOPS(aTHX); 665 CALLRUNOPS(aTHX);
664 /*NORETURN*/ 666
665 abort (); 667 abort ();
666} 668}
667 669
668STATIC void 670STATIC void
669transfer(pTHX_ struct coro *prev, struct coro *next, int flags) 671transfer(pTHX_ struct coro *prev, struct coro *next, int flags)
670{ 672{
671 dSP;
672 dSTACKLEVEL; 673 dSTACKLEVEL;
674 static struct coro *xnext;
673 675
674 if (prev != next) 676 if (prev != next)
675 { 677 {
678 xnext = next;
679
676 if (next->mainstack) 680 if (next->mainstack)
677 { 681 {
678 SAVE (prev, flags); 682 SAVE (prev, flags);
679 LOAD (next); 683 LOAD (next);
680 684
… …
703 continue_coro, (void *)next, 707 continue_coro, (void *)next,
704 next->stack->sptr, labs (next->stack->ssize)); 708 next->stack->sptr, labs (next->stack->ssize));
705 } 709 }
706 710
707 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); 711 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
712 /* don't add any code here */
708 } 713 }
709 714
710 } 715 }
711 else if (next->tmps_ix == -2) 716 else if (next->tmps_ix == -2)
712 croak ("tried to transfer to running coroutine"); 717 croak ("tried to transfer to running coroutine");
… …
733 allocate_stack (next, 1); 738 allocate_stack (next, 1);
734 coro_create (&(next->stack->cctx), 739 coro_create (&(next->stack->cctx),
735 setup_coro, (void *)next, 740 setup_coro, (void *)next,
736 next->stack->sptr, labs (next->stack->ssize)); 741 next->stack->sptr, labs (next->stack->ssize));
737 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); 742 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
743 /* don't add any code here */
738 } 744 }
739 } 745 }
740 else 746 else
741 setup_coro (next); 747 setup_coro (next);
742 } 748 }
743 } 749 }
744 750
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 */
745 next->cursp = stacklevel; 756 xnext->cursp = stacklevel;
757}
758
759static struct coro *
760sv_to_coro (SV *arg, const char *funcname, const char *varname)
761{
762 if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVHV)
763 {
764 HE *he = hv_fetch_ent((HV *)SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash);
765
766 if (!he)
767 croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", funcname, varname);
768
769 arg = HeVAL(he);
770 }
771
772 /* must also be changed inside Coro::Cont::yield */
773 if (SvROK(arg) && SvSTASH(SvRV(arg)) == coro_state_stash)
774 return (struct coro *) SvIV((SV*)SvRV(arg));
775
776 croak ("%s() -- %s is not (and contains not) a Coro::State object", funcname, varname);
777 /*NORETURN*/
778}
779
780static void
781api_transfer(pTHX_ SV *prev, SV *next, int flags)
782{
783 transfer(aTHX_
784 sv_to_coro (prev, "Coro::transfer", "prev"),
785 sv_to_coro (next, "Coro::transfer", "next"),
786 flags);
787}
788
789/** Coro ********************************************************************/
790
791#define PRIO_MAX 3
792#define PRIO_HIGH 1
793#define PRIO_NORMAL 0
794#define PRIO_LOW -1
795#define PRIO_IDLE -3
796#define PRIO_MIN -4
797
798/* for Coro.pm */
799static GV *coro_current, *coro_idle;
800static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
801static int coro_nready;
802
803static void
804coro_enq (SV *sv)
805{
806 if (SvROK (sv))
807 {
808 SV *hv = SvRV (sv);
809 if (SvTYPE (hv) == SVt_PVHV)
810 {
811 SV **xprio = hv_fetch ((HV *)hv, "prio", 4, 0);
812 int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
813
814 prio = prio > PRIO_MAX ? PRIO_MAX
815 : prio < PRIO_MIN ? PRIO_MIN
816 : prio;
817
818 av_push (coro_ready [prio - PRIO_MIN], sv);
819 coro_nready++;
820
821 return;
822 }
823 }
824
825 croak ("Coro::ready tried to enqueue something that is not a coroutine");
826}
827
828static SV *
829coro_deq (int min_prio)
830{
831 int prio = PRIO_MAX - PRIO_MIN;
832
833 min_prio -= PRIO_MIN;
834 if (min_prio < 0)
835 min_prio = 0;
836
837 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
838 if (av_len (coro_ready[prio]) >= 0)
839 {
840 coro_nready--;
841 return av_shift (coro_ready[prio]);
842 }
843
844 return 0;
845}
846
847static void
848api_ready (SV *coro)
849{
850 coro_enq (SvREFCNT_inc (coro));
851}
852
853static void
854api_schedule (int cede)
855{
856 SV *prev, *next;
857
858 prev = GvSV (coro_current);
859
860 if (cede)
861 coro_enq (SvREFCNT_inc (prev));
862
863 next = coro_deq (PRIO_MIN);
864
865 if (!next)
866 next = SvREFCNT_inc (GvSV (coro_idle));
867
868 GvSV (coro_current) = SvREFCNT_inc (next);
869 transfer (aTHX_
870 sv_to_coro (prev, "Coro::schedule", "current coroutine"),
871 sv_to_coro (next, "Coro::schedule", "next coroutine"),
872 TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK);
873 SvREFCNT_dec (next);
874 SvREFCNT_dec (prev);
746} 875}
747 876
748MODULE = Coro::State PACKAGE = Coro::State 877MODULE = Coro::State PACKAGE = Coro::State
749 878
750PROTOTYPES: ENABLE 879PROTOTYPES: ENABLE
… …
762 891
763 if (!padlist_cache) 892 if (!padlist_cache)
764 padlist_cache = newHV (); 893 padlist_cache = newHV ();
765 894
766 main_mainstack = PL_mainstack; 895 main_mainstack = PL_mainstack;
896
897 coroapi.ver = CORO_API_VERSION;
898 coroapi.transfer = api_transfer;
767} 899}
768 900
769Coro::State 901Coro::State
770_newprocess(args) 902_newprocess(args)
771 SV * args 903 SV * args
… …
785 RETVAL = coro; 917 RETVAL = coro;
786 OUTPUT: 918 OUTPUT:
787 RETVAL 919 RETVAL
788 920
789void 921void
790transfer(prev, next, flags = TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK) 922transfer(prev, next, flags)
791 Coro::State_or_hashref prev 923 Coro::State_or_hashref prev
792 Coro::State_or_hashref next 924 Coro::State_or_hashref next
793 int flags 925 int flags
794 PROTOTYPE: @ 926 PROTOTYPE: @
795 CODE: 927 CODE:
928 PUTBACK;
796 transfer (aTHX_ prev, next, flags); 929 transfer (aTHX_ prev, next, flags);
930 SPAGAIN;
797 931
798void 932void
799DESTROY(coro) 933DESTROY(coro)
800 Coro::State coro 934 Coro::State coro
801 CODE: 935 CODE:
802 936
803 if (coro->mainstack && coro->mainstack != main_mainstack) 937 if (coro->mainstack && coro->mainstack != main_mainstack)
804 { 938 {
805 struct coro temp; 939 struct coro temp;
806 940
941 PUTBACK;
807 SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL); 942 SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);
808 LOAD(aTHX_ coro); 943 LOAD(aTHX_ coro);
944 SPAGAIN;
809 945
810 destroy_stacks (aTHX); 946 destroy_stacks (aTHX);
811 947
812 LOAD((&temp)); /* this will get rid of defsv etc.. */ 948 LOAD((&temp)); /* this will get rid of defsv etc.. */
949 SPAGAIN;
813 950
814 coro->mainstack = 0; 951 coro->mainstack = 0;
815 } 952 }
816 953
817 deallocate_stack (coro); 954 deallocate_stack (coro);
… …
823 CODE: 960 CODE:
824#ifdef MAY_FLUSH 961#ifdef MAY_FLUSH
825 flush_padlist_cache (); 962 flush_padlist_cache ();
826#endif 963#endif
827 964
965void
966_exit(code)
967 int code
968 PROTOTYPE: $
969 CODE:
970#if defined(__GLIBC__) || _POSIX_C_SOURCE
971 _exit (code);
972#else
973 signal (SIGTERM, SIG_DFL);
974 raise (SIGTERM);
975 exit (code);
976#endif
977
828MODULE = Coro::State PACKAGE = Coro::Cont 978MODULE = Coro::State PACKAGE = Coro::Cont
829 979
830# this is slightly dirty 980# this is slightly dirty (should expose a c-level api)
831 981
832void 982void
833yield(...) 983yield(...)
834 PROTOTYPE: @ 984 PROTOTYPE: @
835 CODE: 985 CODE:
… …
853 next = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0))); 1003 next = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0)));
854 SvREFCNT_dec (sv); 1004 SvREFCNT_dec (sv);
855 1005
856 transfer(aTHX_ prev, next, 0); 1006 transfer(aTHX_ prev, next, 0);
857 1007
1008MODULE = Coro::State PACKAGE = Coro
1009
1010# this is slightly dirty (should expose a c-level api)
1011
1012BOOT:
1013{
1014 int i;
1015 HV *stash = gv_stashpv ("Coro", TRUE);
1016
1017 newCONSTSUB (stash, "PRIO_MAX", newSViv (PRIO_MAX));
1018 newCONSTSUB (stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1019 newCONSTSUB (stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1020 newCONSTSUB (stash, "PRIO_LOW", newSViv (PRIO_LOW));
1021 newCONSTSUB (stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1022 newCONSTSUB (stash, "PRIO_MIN", newSViv (PRIO_MIN));
1023
1024 coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);
1025 coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);
1026
1027 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1028 coro_ready[i] = newAV ();
1029
1030 {
1031 SV *sv = perl_get_sv("Coro::API", 1);
1032
1033 coroapi.schedule = api_schedule;
1034 coroapi.ready = api_ready;
1035 coroapi.nready = &coro_nready;
1036 coroapi.current = coro_current;
1037
1038 GCoroAPI = &coroapi;
1039 sv_setiv(sv, (IV)&coroapi);
1040 SvREADONLY_on(sv);
1041 }
1042}
1043
1044void
1045ready(self)
1046 SV * self
1047 CODE:
1048 api_ready (self);
1049
1050int
1051nready(...)
1052 PROTOTYPE:
1053 CODE:
1054 RETVAL = coro_nready;
1055 OUTPUT:
1056 RETVAL
1057
1058void
1059schedule(...)
1060 PROTOTYPE:
1061 ALIAS:
1062 cede = 1
1063 CODE:
1064 api_schedule (ix);
1065

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