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Comparing Coro/Coro/State.xs (file contents):
Revision 1.15 by root, Wed Jul 25 04:14:38 2001 UTC vs.
Revision 1.38 by root, Wed Nov 7 00:21:06 2001 UTC

… …
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 6
7#include <signal.h>
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>
12# ifndef MAP_ANONYMOUS
13# ifdef MAP_ANON
14# define MAP_ANONYMOUS MAP_ANON
15# else
16# undef HAVE_MMAP
17# endif
18# endif
10#endif 19#endif
11 20
12#define MAY_FLUSH /* increases codesize */ 21#define MAY_FLUSH /* increases codesize and is rarely used */
13
14/* perl-related */
15#define TRANSFER_SAVE_DEFAV 0x00000001
16#define TRANSFER_SAVE_DEFSV 0x00000002
17#define TRANSFER_SAVE_ERRSV 0x00000004
18/* c-related */
19#define TRANSFER_SAVE_CCTXT 0x00000008
20#ifdef CORO_LAZY_STACK
21# define TRANSFER_LAZY_STACK 0x00000010
22#else
23# define TRANSFER_LAZY_STACK 0x00000000
24#endif
25
26#define TRANSFER_SAVE_ALL (TRANSFER_SAVE_DEFAV|TRANSFER_SAVE_DEFSV \
27 |TRANSFER_SAVE_ERRSV|TRANSFER_SAVE_CCTXT)
28 22
29#define SUB_INIT "Coro::State::initialize" 23#define SUB_INIT "Coro::State::initialize"
30#define UCORO_STATE "_coro_state" 24#define UCORO_STATE "_coro_state"
31 25
32/* 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
33 * 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
34 * and should be unique. */ 28 * and should be unique. */
35#define dSTACKLEVEL void *stacklevel = &stacklevel 29#define dSTACKLEVEL void *stacklevel = &stacklevel
36 30
31#define IN_DESTRUCT (PL_main_cv == Nullcv)
32
37#define labs(l) ((l) >= 0 ? (l) : -(l)) 33#define labs(l) ((l) >= 0 ? (l) : -(l))
34
35#include "CoroAPI.h"
36
37static struct CoroAPI coroapi;
38 38
39/* this is actually not only the c stack but also c registers etc... */ 39/* this is actually not only the c stack but also c registers etc... */
40typedef struct { 40typedef struct {
41 int refcnt; /* pointer reference counter */ 41 int refcnt; /* pointer reference counter */
42 int usecnt; /* shared by how many coroutines */ 42 int usecnt; /* shared by how many coroutines */
… …
46 46
47 void *sptr; 47 void *sptr;
48 long ssize; /* positive == mmap, otherwise malloc */ 48 long ssize; /* positive == mmap, otherwise malloc */
49} coro_stack; 49} coro_stack;
50 50
51static coro_stack main_stack = { 1, 0, 0 };
52
53struct coro { 51struct coro {
54 /* the optional C context */ 52 /* the optional C context */
55 coro_stack *stack; 53 coro_stack *stack;
56 void *cursp; 54 void *cursp;
57 int gencnt; 55 int gencnt;
58 56
59 /* optionally saved, might be zero */ 57 /* optionally saved, might be zero */
60 AV *defav; 58 AV *defav;
61 SV *defsv; 59 SV *defsv;
62 SV *errsv; 60 SV *errsv;
61 /* TODO: PL_pmop might be nice && effortless to save. */
63 62
64 /* saved global state not related to stacks */ 63 /* saved global state not related to stacks */
65 U8 dowarn; 64 U8 dowarn;
65 I32 in_eval;
66 66
67 /* the stacks and related info (callchain etc..) */ 67 /* the stacks and related info (callchain etc..) */
68 PERL_SI *curstackinfo; 68 PERL_SI *curstackinfo;
69 AV *curstack; 69 AV *curstack;
70 AV *mainstack; 70 AV *mainstack;
… …
88 I32 savestack_max; 88 I32 savestack_max;
89 OP **retstack; 89 OP **retstack;
90 I32 retstack_ix; 90 I32 retstack_ix;
91 I32 retstack_max; 91 I32 retstack_max;
92 COP *curcop; 92 COP *curcop;
93 JMPENV start_env;
94 JMPENV *top_env; 93 JMPENV *top_env;
95 94
96 /* data associated with this coroutine (initial args) */ 95 /* data associated with this coroutine (initial args) */
97 AV *args; 96 AV *args;
98}; 97};
… …
199 198
200 return newpadlist; 199 return newpadlist;
201} 200}
202 201
203#ifdef MAY_FLUSH 202#ifdef MAY_FLUSH
204STATIC AV * 203STATIC void
205free_padlist (AV *padlist) 204free_padlist (AV *padlist)
206{ 205{
207 /* may be during global destruction */ 206 /* may be during global destruction */
208 if (SvREFCNT(padlist)) 207 if (SvREFCNT(padlist))
209 { 208 {
… …
274#endif 273#endif
275 274
276#define SB do { 275#define SB do {
277#define SE } while (0) 276#define SE } while (0)
278 277
279#define LOAD(state) SB load_state(aTHX_ (state)); SPAGAIN; SE 278#define LOAD(state) load_state(aTHX_ (state));
280#define SAVE(state,flags) SB PUTBACK; save_state(aTHX_ (state),(flags)); SE 279#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
281 280
282#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE 281#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE
283 282
284static void 283static void
285load_state(pTHX_ Coro__State c) 284load_state(pTHX_ Coro__State c)
286{ 285{
287 PL_dowarn = c->dowarn; 286 PL_dowarn = c->dowarn;
287 PL_in_eval = c->in_eval;
288 288
289 PL_curstackinfo = c->curstackinfo; 289 PL_curstackinfo = c->curstackinfo;
290 PL_curstack = c->curstack; 290 PL_curstack = c->curstack;
291 PL_mainstack = c->mainstack; 291 PL_mainstack = c->mainstack;
292 PL_stack_sp = c->stack_sp; 292 PL_stack_sp = c->stack_sp;
… …
309 PL_savestack_max = c->savestack_max; 309 PL_savestack_max = c->savestack_max;
310 PL_retstack = c->retstack; 310 PL_retstack = c->retstack;
311 PL_retstack_ix = c->retstack_ix; 311 PL_retstack_ix = c->retstack_ix;
312 PL_retstack_max = c->retstack_max; 312 PL_retstack_max = c->retstack_max;
313 PL_curcop = c->curcop; 313 PL_curcop = c->curcop;
314 PL_start_env = c->start_env;
315 PL_top_env = c->top_env; 314 PL_top_env = c->top_env;
316 315
317 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 316 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
318 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 317 if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
319 if (c->errsv) REPLACE_SV (ERRSV , c->errsv); 318 if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
… …
359 358
360 PUSHs (Nullsv); 359 PUSHs (Nullsv);
361 /* this loop was inspired by pp_caller */ 360 /* this loop was inspired by pp_caller */
362 for (;;) 361 for (;;)
363 { 362 {
364 do 363 while (cxix >= 0)
365 { 364 {
366 PERL_CONTEXT *cx = &ccstk[cxix--]; 365 PERL_CONTEXT *cx = &ccstk[cxix--];
367 366
368 if (CxTYPE(cx) == CXt_SUB) 367 if (CxTYPE(cx) == CXt_SUB)
369 { 368 {
… …
395 /* I never used formats, so how should I know how these are implemented? */ 394 /* I never used formats, so how should I know how these are implemented? */
396 /* my bold guess is as a simple, plain sub... */ 395 /* my bold guess is as a simple, plain sub... */
397 croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); 396 croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
398 } 397 }
399 } 398 }
400 while (cxix >= 0);
401 399
402 if (top_si->si_type == PERLSI_MAIN) 400 if (top_si->si_type == PERLSI_MAIN)
403 break; 401 break;
404 402
405 top_si = top_si->si_prev; 403 top_si = top_si->si_prev;
… …
412 410
413 c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; 411 c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
414 c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; 412 c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
415 c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; 413 c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
416 414
417 /* I have not the slightest idea of why av_reify is necessary */
418 /* but if it's missing the defav contents magically get replaced sometimes */
419 if (c->defav)
420 av_reify (c->defav);
421
422 c->dowarn = PL_dowarn; 415 c->dowarn = PL_dowarn;
416 c->in_eval = PL_in_eval;
423 417
424 c->curstackinfo = PL_curstackinfo; 418 c->curstackinfo = PL_curstackinfo;
425 c->curstack = PL_curstack; 419 c->curstack = PL_curstack;
426 c->mainstack = PL_mainstack; 420 c->mainstack = PL_mainstack;
427 c->stack_sp = PL_stack_sp; 421 c->stack_sp = PL_stack_sp;
… …
444 c->savestack_max = PL_savestack_max; 438 c->savestack_max = PL_savestack_max;
445 c->retstack = PL_retstack; 439 c->retstack = PL_retstack;
446 c->retstack_ix = PL_retstack_ix; 440 c->retstack_ix = PL_retstack_ix;
447 c->retstack_max = PL_retstack_max; 441 c->retstack_max = PL_retstack_max;
448 c->curcop = PL_curcop; 442 c->curcop = PL_curcop;
449 c->start_env = PL_start_env;
450 c->top_env = PL_top_env; 443 c->top_env = PL_top_env;
451} 444}
452 445
453/* 446/*
454 * allocate various perl stacks. This is an exact copy 447 * allocate various perl stacks. This is an exact copy
… …
497 * still there is a memleak of 128 bytes... 490 * still there is a memleak of 128 bytes...
498 */ 491 */
499STATIC void 492STATIC void
500destroy_stacks(pTHX) 493destroy_stacks(pTHX)
501{ 494{
495 if (!IN_DESTRUCT)
496 {
502 /* is this ugly, I ask? */ 497 /* is this ugly, I ask? */
503 while (PL_scopestack_ix) 498 while (PL_scopestack_ix)
504 LEAVE; 499 LEAVE;
505 500
506 /* sure it is, but more important: is it correct?? :/ */ 501 /* sure it is, but more important: is it correct?? :/ */
507 while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */ 502 while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
508 FREETMPS; 503 FREETMPS;
504 }
509 505
510 while (PL_curstackinfo->si_next) 506 while (PL_curstackinfo->si_next)
511 PL_curstackinfo = PL_curstackinfo->si_next; 507 PL_curstackinfo = PL_curstackinfo->si_next;
512 508
513 while (PL_curstackinfo) 509 while (PL_curstackinfo)
… …
518 dSP; 514 dSP;
519 SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); 515 SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
520 PUTBACK; /* possibly superfluous */ 516 PUTBACK; /* possibly superfluous */
521 } 517 }
522 518
519 if (!IN_DESTRUCT)
520 {
523 dounwind(-1); 521 dounwind(-1);
524
525 SvREFCNT_dec(PL_curstackinfo->si_stack); 522 SvREFCNT_dec(PL_curstackinfo->si_stack);
523 }
524
526 Safefree(PL_curstackinfo->si_cxstack); 525 Safefree(PL_curstackinfo->si_cxstack);
527 Safefree(PL_curstackinfo); 526 Safefree(PL_curstackinfo);
528 PL_curstackinfo = p; 527 PL_curstackinfo = p;
529 } 528 }
530 529
… …
545 stack->refcnt = 1; 544 stack->refcnt = 1;
546 stack->usecnt = 1; 545 stack->usecnt = 1;
547 stack->gencnt = ctx->gencnt = 0; 546 stack->gencnt = ctx->gencnt = 0;
548 if (alloc) 547 if (alloc)
549 { 548 {
550#ifdef HAVE_MMAP 549#if HAVE_MMAP
551 stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-use */ 550 stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */
552 stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, 0, 0); 551 stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
553 if (stack->sptr == (void *)-1) 552 if (stack->sptr == (void *)-1)
554#endif 553#endif
555 { 554 {
556 /*FIXME*//*D*//* reasonable stack size! */ 555 /*FIXME*//*D*//* reasonable stack size! */
557 stack->ssize = -4096 * sizeof (long); 556 stack->ssize = -4096 * sizeof (long);
… …
598 dSP; 597 dSP;
599 Coro__State ctx = (Coro__State)arg; 598 Coro__State ctx = (Coro__State)arg;
600 SV *sub_init = (SV*)get_cv(SUB_INIT, FALSE); 599 SV *sub_init = (SV*)get_cv(SUB_INIT, FALSE);
601 600
602 coro_init_stacks (aTHX); 601 coro_init_stacks (aTHX);
603 JMPENV_BOOTSTRAP;
604 SPAGAIN;
605
606 /*PL_curcop = 0;*/ 602 /*PL_curcop = 0;*/
603 /*PL_in_eval = PL_in_eval;*/ /* inherit */
607 SvREFCNT_dec (GvAV (PL_defgv)); 604 SvREFCNT_dec (GvAV (PL_defgv));
608 GvAV (PL_defgv) = ctx->args; 605 GvAV (PL_defgv) = ctx->args;
609 606
607 SPAGAIN;
608
610 if (ctx->stack) 609 if (ctx->stack)
611 { 610 {
612 ctx->cursp = 0; 611 ctx->cursp = 0;
613 612
614 PUSHMARK(SP); 613 PUSHMARK(SP);
615 PUTBACK; 614 PUTBACK;
616 (void) call_sv (sub_init, G_VOID|G_NOARGS); 615 (void) call_sv (sub_init, G_VOID|G_NOARGS|G_EVAL);
616
617 if (SvTRUE (ERRSV))
618 croak (NULL);
619 else
617 croak ("FATAL: CCTXT coroutine returned!"); 620 croak ("FATAL: CCTXT coroutine returned!");
618 } 621 }
619 else 622 else
620 { 623 {
621 UNOP myop; 624 UNOP myop;
622 625
… …
648{ 651{
649 /* 652 /*
650 * this is a _very_ stripped down perl interpreter ;) 653 * this is a _very_ stripped down perl interpreter ;)
651 */ 654 */
652 Coro__State ctx = (Coro__State)arg; 655 Coro__State ctx = (Coro__State)arg;
656 JMPENV coro_start_env;
657
658 /* same as JMPENV_BOOTSTRAP */
659 Zero(&coro_start_env, 1, JMPENV);
660 coro_start_env.je_ret = -1;
661 coro_start_env.je_mustcatch = TRUE;
662 PL_top_env = &coro_start_env;
653 663
654 ctx->cursp = 0; 664 ctx->cursp = 0;
655 PL_op = PL_op->op_next; 665 PL_op = PL_op->op_next;
656 CALLRUNOPS(aTHX); 666 CALLRUNOPS(aTHX);
657 /*NORETURN*/ 667
658 abort (); 668 abort ();
659} 669}
660 670
661STATIC void 671STATIC void
662transfer(pTHX_ struct coro *prev, struct coro *next, int flags) 672transfer(pTHX_ struct coro *prev, struct coro *next, int flags)
663{ 673{
664 dSP;
665 dSTACKLEVEL; 674 dSTACKLEVEL;
675 static struct coro *xnext;
666 676
667 if (prev != next) 677 if (prev != next)
668 { 678 {
679 xnext = next;
680
669 if (next->mainstack) 681 if (next->mainstack)
670 { 682 {
671 SAVE (prev, flags); 683 SAVE (prev, flags);
672 LOAD (next); 684 LOAD (next);
673 685
… …
696 continue_coro, (void *)next, 708 continue_coro, (void *)next,
697 next->stack->sptr, labs (next->stack->ssize)); 709 next->stack->sptr, labs (next->stack->ssize));
698 } 710 }
699 711
700 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); 712 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
713 /* don't add any code here */
701 } 714 }
702 715
703 } 716 }
704 else if (next->tmps_ix == -2) 717 else if (next->tmps_ix == -2)
705 croak ("tried to transfer to running coroutine"); 718 croak ("tried to transfer to running coroutine");
… …
726 allocate_stack (next, 1); 739 allocate_stack (next, 1);
727 coro_create (&(next->stack->cctx), 740 coro_create (&(next->stack->cctx),
728 setup_coro, (void *)next, 741 setup_coro, (void *)next,
729 next->stack->sptr, labs (next->stack->ssize)); 742 next->stack->sptr, labs (next->stack->ssize));
730 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); 743 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
744 /* don't add any code here */
731 } 745 }
732 } 746 }
733 else 747 else
734 setup_coro (next); 748 setup_coro (next);
735 } 749 }
736 }
737 750
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 */
738 next->cursp = stacklevel; 756 xnext->cursp = stacklevel;
757 }
758}
759
760static struct coro *
761sv_to_coro (SV *arg, const char *funcname, const char *varname)
762{
763 if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVHV)
764 {
765 HE *he = hv_fetch_ent((HV *)SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash);
766
767 if (!he)
768 croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", funcname, varname);
769
770 arg = HeVAL(he);
771 }
772
773 /* must also be changed inside Coro::Cont::yield */
774 if (SvROK(arg) && SvOBJECT(SvRV(arg))
775 && SvSTASH(SvRV(arg)) == coro_state_stash)
776 return (struct coro *) SvIV((SV*)SvRV(arg));
777
778 croak ("%s() -- %s is not (and contains not) a Coro::State object", funcname, varname);
779 /*NORETURN*/
780}
781
782static void
783api_transfer(pTHX_ SV *prev, SV *next, int flags)
784{
785 transfer(aTHX_
786 sv_to_coro (prev, "Coro::transfer", "prev"),
787 sv_to_coro (next, "Coro::transfer", "next"),
788 flags);
789}
790
791/** Coro ********************************************************************/
792
793#define PRIO_MAX 3
794#define PRIO_HIGH 1
795#define PRIO_NORMAL 0
796#define PRIO_LOW -1
797#define PRIO_IDLE -3
798#define PRIO_MIN -4
799
800/* for Coro.pm */
801static GV *coro_current, *coro_idle;
802static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
803static int coro_nready;
804
805static void
806coro_enq (SV *sv)
807{
808 if (SvROK (sv))
809 {
810 SV *hv = SvRV (sv);
811 if (SvTYPE (hv) == SVt_PVHV)
812 {
813 SV **xprio = hv_fetch ((HV *)hv, "prio", 4, 0);
814 int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
815
816 prio = prio > PRIO_MAX ? PRIO_MAX
817 : prio < PRIO_MIN ? PRIO_MIN
818 : prio;
819
820 av_push (coro_ready [prio - PRIO_MIN], sv);
821 coro_nready++;
822
823 return;
824 }
825 }
826
827 croak ("Coro::ready tried to enqueue something that is not a coroutine");
828}
829
830static SV *
831coro_deq (int min_prio)
832{
833 int prio = PRIO_MAX - PRIO_MIN;
834
835 min_prio -= PRIO_MIN;
836 if (min_prio < 0)
837 min_prio = 0;
838
839 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
840 if (av_len (coro_ready[prio]) >= 0)
841 {
842 coro_nready--;
843 return av_shift (coro_ready[prio]);
844 }
845
846 return 0;
847}
848
849static void
850api_ready (SV *coro)
851{
852 coro_enq (SvREFCNT_inc (coro));
853}
854
855static void
856api_schedule (int cede)
857{
858 SV *prev, *next;
859
860 prev = GvSV (coro_current);
861
862 if (cede)
863 coro_enq (SvREFCNT_inc (prev));
864
865 next = coro_deq (PRIO_MIN);
866
867 if (!next)
868 next = SvREFCNT_inc (GvSV (coro_idle));
869
870 GvSV (coro_current) = SvREFCNT_inc (next);
871 transfer (aTHX_
872 sv_to_coro (prev, "Coro::schedule", "current coroutine"),
873 sv_to_coro (next, "Coro::schedule", "next coroutine"),
874 TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK);
875 SvREFCNT_dec (next);
876 SvREFCNT_dec (prev);
739} 877}
740 878
741MODULE = Coro::State PACKAGE = Coro::State 879MODULE = Coro::State PACKAGE = Coro::State
742 880
743PROTOTYPES: ENABLE 881PROTOTYPES: ENABLE
… …
755 893
756 if (!padlist_cache) 894 if (!padlist_cache)
757 padlist_cache = newHV (); 895 padlist_cache = newHV ();
758 896
759 main_mainstack = PL_mainstack; 897 main_mainstack = PL_mainstack;
898
899 coroapi.ver = CORO_API_VERSION;
900 coroapi.transfer = api_transfer;
760} 901}
761 902
762Coro::State 903Coro::State
763_newprocess(args) 904_newprocess(args)
764 SV * args 905 SV * args
… …
778 RETVAL = coro; 919 RETVAL = coro;
779 OUTPUT: 920 OUTPUT:
780 RETVAL 921 RETVAL
781 922
782void 923void
783transfer(prev, next, flags = TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK) 924transfer(prev, next, flags)
784 Coro::State_or_hashref prev 925 Coro::State_or_hashref prev
785 Coro::State_or_hashref next 926 Coro::State_or_hashref next
786 int flags 927 int flags
787 PROTOTYPE: @ 928 PROTOTYPE: @
788 CODE: 929 CODE:
930 PUTBACK;
789 transfer (aTHX_ prev, next, flags); 931 transfer (aTHX_ prev, next, flags);
932 SPAGAIN;
790 933
791void 934void
792DESTROY(coro) 935DESTROY(coro)
793 Coro::State coro 936 Coro::State coro
794 CODE: 937 CODE:
795 938
796 if (coro->mainstack && coro->mainstack != main_mainstack) 939 if (coro->mainstack && coro->mainstack != main_mainstack)
797 { 940 {
798 struct coro temp; 941 struct coro temp;
799 942
943 PUTBACK;
800 SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL); 944 SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);
801 LOAD(aTHX_ coro); 945 LOAD(aTHX_ coro);
946 SPAGAIN;
802 947
803 destroy_stacks (aTHX); 948 destroy_stacks (aTHX);
804 949
805 LOAD((&temp)); /* this will get rid of defsv etc.. */ 950 LOAD((&temp)); /* this will get rid of defsv etc.. */
951 SPAGAIN;
806 952
807 coro->mainstack = 0; 953 coro->mainstack = 0;
808 } 954 }
809 955
810 deallocate_stack (coro); 956 deallocate_stack (coro);
… …
816 CODE: 962 CODE:
817#ifdef MAY_FLUSH 963#ifdef MAY_FLUSH
818 flush_padlist_cache (); 964 flush_padlist_cache ();
819#endif 965#endif
820 966
967void
968_exit(code)
969 int code
970 PROTOTYPE: $
971 CODE:
972#if defined(__GLIBC__) || _POSIX_C_SOURCE
973 _exit (code);
974#else
975 signal (SIGTERM, SIG_DFL);
976 raise (SIGTERM);
977 exit (code);
978#endif
979
821MODULE = Coro::State PACKAGE = Coro::Cont 980MODULE = Coro::State PACKAGE = Coro::Cont
822 981
823# this is slightly dirty 982# this is slightly dirty (should expose a c-level api)
824 983
825void 984void
826yield(...) 985yield(...)
827 PROTOTYPE: @ 986 PROTOTYPE: @
828 CODE: 987 CODE:
… …
846 next = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0))); 1005 next = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0)));
847 SvREFCNT_dec (sv); 1006 SvREFCNT_dec (sv);
848 1007
849 transfer(aTHX_ prev, next, 0); 1008 transfer(aTHX_ prev, next, 0);
850 1009
1010MODULE = Coro::State PACKAGE = Coro
1011
1012# this is slightly dirty (should expose a c-level api)
1013
1014BOOT:
1015{
1016 int i;
1017 HV *stash = gv_stashpv ("Coro", TRUE);
1018
1019 newCONSTSUB (stash, "PRIO_MAX", newSViv (PRIO_MAX));
1020 newCONSTSUB (stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1021 newCONSTSUB (stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1022 newCONSTSUB (stash, "PRIO_LOW", newSViv (PRIO_LOW));
1023 newCONSTSUB (stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1024 newCONSTSUB (stash, "PRIO_MIN", newSViv (PRIO_MIN));
1025
1026 coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);
1027 coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);
1028
1029 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1030 coro_ready[i] = newAV ();
1031
1032 {
1033 SV *sv = perl_get_sv("Coro::API", 1);
1034
1035 coroapi.schedule = api_schedule;
1036 coroapi.ready = api_ready;
1037 coroapi.nready = &coro_nready;
1038 coroapi.current = coro_current;
1039
1040 GCoroAPI = &coroapi;
1041 sv_setiv(sv, (IV)&coroapi);
1042 SvREADONLY_on(sv);
1043 }
1044}
1045
1046void
1047ready(self)
1048 SV * self
1049 PROTOTYPE: $
1050 CODE:
1051 api_ready (self);
1052
1053int
1054nready(...)
1055 PROTOTYPE:
1056 CODE:
1057 RETVAL = coro_nready;
1058 OUTPUT:
1059 RETVAL
1060
1061void
1062schedule(...)
1063 PROTOTYPE:
1064 ALIAS:
1065 cede = 1
1066 CODE:
1067 api_schedule (ix);
1068

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