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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 1.37 by root, Tue Oct 9 00:39:11 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 */
… …
45 coro_context cctx; 45 coro_context cctx;
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
51static coro_stack main_stack = { 1, 0, 0 };
52 50
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;
… …
61 SV *defsv; 59 SV *defsv;
62 SV *errsv; 60 SV *errsv;
63 61
64 /* saved global state not related to stacks */ 62 /* saved global state not related to stacks */
65 U8 dowarn; 63 U8 dowarn;
64 I32 in_eval;
66 65
67 /* the stacks and related info (callchain etc..) */ 66 /* the stacks and related info (callchain etc..) */
68 PERL_SI *curstackinfo; 67 PERL_SI *curstackinfo;
69 AV *curstack; 68 AV *curstack;
70 AV *mainstack; 69 AV *mainstack;
… …
88 I32 savestack_max; 87 I32 savestack_max;
89 OP **retstack; 88 OP **retstack;
90 I32 retstack_ix; 89 I32 retstack_ix;
91 I32 retstack_max; 90 I32 retstack_max;
92 COP *curcop; 91 COP *curcop;
93 JMPENV start_env;
94 JMPENV *top_env; 92 JMPENV *top_env;
95 93
96 /* data associated with this coroutine (initial args) */ 94 /* data associated with this coroutine (initial args) */
97 AV *args; 95 AV *args;
98}; 96};
… …
199 197
200 return newpadlist; 198 return newpadlist;
201} 199}
202 200
203#ifdef MAY_FLUSH 201#ifdef MAY_FLUSH
204STATIC AV * 202STATIC void
205free_padlist (AV *padlist) 203free_padlist (AV *padlist)
206{ 204{
207 /* may be during global destruction */ 205 /* may be during global destruction */
208 if (SvREFCNT(padlist)) 206 if (SvREFCNT(padlist))
209 { 207 {
… …
274#endif 272#endif
275 273
276#define SB do { 274#define SB do {
277#define SE } while (0) 275#define SE } while (0)
278 276
279#define LOAD(state) SB load_state(aTHX_ (state)); SPAGAIN; SE 277#define LOAD(state) load_state(aTHX_ (state));
280#define SAVE(state,flags) SB PUTBACK; save_state(aTHX_ (state),(flags)); SE 278#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
281 279
282#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE 280#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE
283 281
284static void 282static void
285load_state(pTHX_ Coro__State c) 283load_state(pTHX_ Coro__State c)
286{ 284{
287 PL_dowarn = c->dowarn; 285 PL_dowarn = c->dowarn;
286 PL_in_eval = c->in_eval;
288 287
289 PL_curstackinfo = c->curstackinfo; 288 PL_curstackinfo = c->curstackinfo;
290 PL_curstack = c->curstack; 289 PL_curstack = c->curstack;
291 PL_mainstack = c->mainstack; 290 PL_mainstack = c->mainstack;
292 PL_stack_sp = c->stack_sp; 291 PL_stack_sp = c->stack_sp;
… …
309 PL_savestack_max = c->savestack_max; 308 PL_savestack_max = c->savestack_max;
310 PL_retstack = c->retstack; 309 PL_retstack = c->retstack;
311 PL_retstack_ix = c->retstack_ix; 310 PL_retstack_ix = c->retstack_ix;
312 PL_retstack_max = c->retstack_max; 311 PL_retstack_max = c->retstack_max;
313 PL_curcop = c->curcop; 312 PL_curcop = c->curcop;
314 PL_start_env = c->start_env;
315 PL_top_env = c->top_env; 313 PL_top_env = c->top_env;
316 314
317 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 315 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
318 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 316 if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
319 if (c->errsv) REPLACE_SV (ERRSV , c->errsv); 317 if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
… …
359 357
360 PUSHs (Nullsv); 358 PUSHs (Nullsv);
361 /* this loop was inspired by pp_caller */ 359 /* this loop was inspired by pp_caller */
362 for (;;) 360 for (;;)
363 { 361 {
364 do 362 while (cxix >= 0)
365 { 363 {
366 PERL_CONTEXT *cx = &ccstk[cxix--]; 364 PERL_CONTEXT *cx = &ccstk[cxix--];
367 365
368 if (CxTYPE(cx) == CXt_SUB) 366 if (CxTYPE(cx) == CXt_SUB)
369 { 367 {
… …
395 /* I never used formats, so how should I know how these are implemented? */ 393 /* I never used formats, so how should I know how these are implemented? */
396 /* my bold guess is as a simple, plain sub... */ 394 /* my bold guess is as a simple, plain sub... */
397 croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); 395 croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
398 } 396 }
399 } 397 }
400 while (cxix >= 0);
401 398
402 if (top_si->si_type == PERLSI_MAIN) 399 if (top_si->si_type == PERLSI_MAIN)
403 break; 400 break;
404 401
405 top_si = top_si->si_prev; 402 top_si = top_si->si_prev;
… …
412 409
413 c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; 410 c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
414 c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; 411 c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
415 c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; 412 c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
416 413
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; 414 c->dowarn = PL_dowarn;
415 c->in_eval = PL_in_eval;
423 416
424 c->curstackinfo = PL_curstackinfo; 417 c->curstackinfo = PL_curstackinfo;
425 c->curstack = PL_curstack; 418 c->curstack = PL_curstack;
426 c->mainstack = PL_mainstack; 419 c->mainstack = PL_mainstack;
427 c->stack_sp = PL_stack_sp; 420 c->stack_sp = PL_stack_sp;
… …
444 c->savestack_max = PL_savestack_max; 437 c->savestack_max = PL_savestack_max;
445 c->retstack = PL_retstack; 438 c->retstack = PL_retstack;
446 c->retstack_ix = PL_retstack_ix; 439 c->retstack_ix = PL_retstack_ix;
447 c->retstack_max = PL_retstack_max; 440 c->retstack_max = PL_retstack_max;
448 c->curcop = PL_curcop; 441 c->curcop = PL_curcop;
449 c->start_env = PL_start_env;
450 c->top_env = PL_top_env; 442 c->top_env = PL_top_env;
451} 443}
452 444
453/* 445/*
454 * allocate various perl stacks. This is an exact copy 446 * allocate various perl stacks. This is an exact copy
… …
497 * still there is a memleak of 128 bytes... 489 * still there is a memleak of 128 bytes...
498 */ 490 */
499STATIC void 491STATIC void
500destroy_stacks(pTHX) 492destroy_stacks(pTHX)
501{ 493{
494 if (!IN_DESTRUCT)
495 {
502 /* is this ugly, I ask? */ 496 /* is this ugly, I ask? */
503 while (PL_scopestack_ix) 497 while (PL_scopestack_ix)
504 LEAVE; 498 LEAVE;
505 499
506 /* sure it is, but more important: is it correct?? :/ */ 500 /* sure it is, but more important: is it correct?? :/ */
507 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 */
508 FREETMPS; 502 FREETMPS;
503 }
509 504
510 while (PL_curstackinfo->si_next) 505 while (PL_curstackinfo->si_next)
511 PL_curstackinfo = PL_curstackinfo->si_next; 506 PL_curstackinfo = PL_curstackinfo->si_next;
512 507
513 while (PL_curstackinfo) 508 while (PL_curstackinfo)
… …
518 dSP; 513 dSP;
519 SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); 514 SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
520 PUTBACK; /* possibly superfluous */ 515 PUTBACK; /* possibly superfluous */
521 } 516 }
522 517
518 if (!IN_DESTRUCT)
519 {
523 dounwind(-1); 520 dounwind(-1);
524
525 SvREFCNT_dec(PL_curstackinfo->si_stack); 521 SvREFCNT_dec(PL_curstackinfo->si_stack);
522 }
523
526 Safefree(PL_curstackinfo->si_cxstack); 524 Safefree(PL_curstackinfo->si_cxstack);
527 Safefree(PL_curstackinfo); 525 Safefree(PL_curstackinfo);
528 PL_curstackinfo = p; 526 PL_curstackinfo = p;
529 } 527 }
530 528
… …
545 stack->refcnt = 1; 543 stack->refcnt = 1;
546 stack->usecnt = 1; 544 stack->usecnt = 1;
547 stack->gencnt = ctx->gencnt = 0; 545 stack->gencnt = ctx->gencnt = 0;
548 if (alloc) 546 if (alloc)
549 { 547 {
550#ifdef HAVE_MMAP 548#if HAVE_MMAP
551 stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-use */ 549 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); 550 stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
553 if (stack->sptr == (void *)-1) 551 if (stack->sptr == (void *)-1)
554#endif 552#endif
555 { 553 {
556 /*FIXME*//*D*//* reasonable stack size! */ 554 /*FIXME*//*D*//* reasonable stack size! */
557 stack->ssize = -4096 * sizeof (long); 555 stack->ssize = -4096 * sizeof (long);
… …
598 dSP; 596 dSP;
599 Coro__State ctx = (Coro__State)arg; 597 Coro__State ctx = (Coro__State)arg;
600 SV *sub_init = (SV*)get_cv(SUB_INIT, FALSE); 598 SV *sub_init = (SV*)get_cv(SUB_INIT, FALSE);
601 599
602 coro_init_stacks (aTHX); 600 coro_init_stacks (aTHX);
603 JMPENV_BOOTSTRAP;
604 SPAGAIN;
605
606 /*PL_curcop = 0;*/ 601 /*PL_curcop = 0;*/
602 /*PL_in_eval = PL_in_eval;*/ /* inherit */
607 SvREFCNT_dec (GvAV (PL_defgv)); 603 SvREFCNT_dec (GvAV (PL_defgv));
608 GvAV (PL_defgv) = ctx->args; 604 GvAV (PL_defgv) = ctx->args;
609 605
606 SPAGAIN;
607
610 if (ctx->stack) 608 if (ctx->stack)
611 { 609 {
612 ctx->cursp = 0; 610 ctx->cursp = 0;
613 611
614 PUSHMARK(SP); 612 PUSHMARK(SP);
615 PUTBACK; 613 PUTBACK;
616 (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
617 croak ("FATAL: CCTXT coroutine returned!"); 619 croak ("FATAL: CCTXT coroutine returned!");
618 } 620 }
619 else 621 else
620 { 622 {
621 UNOP myop; 623 UNOP myop;
622 624
… …
648{ 650{
649 /* 651 /*
650 * this is a _very_ stripped down perl interpreter ;) 652 * this is a _very_ stripped down perl interpreter ;)
651 */ 653 */
652 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;
653 662
654 ctx->cursp = 0; 663 ctx->cursp = 0;
655 PL_op = PL_op->op_next; 664 PL_op = PL_op->op_next;
656 CALLRUNOPS(aTHX); 665 CALLRUNOPS(aTHX);
657 /*NORETURN*/ 666
658 abort (); 667 abort ();
659} 668}
660 669
661STATIC void 670STATIC void
662transfer(pTHX_ struct coro *prev, struct coro *next, int flags) 671transfer(pTHX_ struct coro *prev, struct coro *next, int flags)
663{ 672{
664 dSP;
665 dSTACKLEVEL; 673 dSTACKLEVEL;
674 static struct coro *xnext;
666 675
667 if (prev != next) 676 if (prev != next)
668 { 677 {
678 xnext = next;
679
669 if (next->mainstack) 680 if (next->mainstack)
670 { 681 {
671 SAVE (prev, flags); 682 SAVE (prev, flags);
672 LOAD (next); 683 LOAD (next);
673 684
… …
696 continue_coro, (void *)next, 707 continue_coro, (void *)next,
697 next->stack->sptr, labs (next->stack->ssize)); 708 next->stack->sptr, labs (next->stack->ssize));
698 } 709 }
699 710
700 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); 711 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
712 /* don't add any code here */
701 } 713 }
702 714
703 } 715 }
704 else if (next->tmps_ix == -2) 716 else if (next->tmps_ix == -2)
705 croak ("tried to transfer to running coroutine"); 717 croak ("tried to transfer to running coroutine");
… …
726 allocate_stack (next, 1); 738 allocate_stack (next, 1);
727 coro_create (&(next->stack->cctx), 739 coro_create (&(next->stack->cctx),
728 setup_coro, (void *)next, 740 setup_coro, (void *)next,
729 next->stack->sptr, labs (next->stack->ssize)); 741 next->stack->sptr, labs (next->stack->ssize));
730 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); 742 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
743 /* don't add any code here */
731 } 744 }
732 } 745 }
733 else 746 else
734 setup_coro (next); 747 setup_coro (next);
735 } 748 }
736 }
737 749
750 /*
751 * xnext is now either prev or next, depending on wether
752 * we switched the c stack or not. that's why i use a global
753 * variable, that should become thread-specific at one point.
754 */
738 next->cursp = stacklevel; 755 xnext->cursp = stacklevel;
756 }
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) && SvOBJECT(SvRV(arg))
774 && SvSTASH(SvRV(arg)) == coro_state_stash)
775 return (struct coro *) SvIV((SV*)SvRV(arg));
776
777 croak ("%s() -- %s is not (and contains not) a Coro::State object", funcname, varname);
778 /*NORETURN*/
779}
780
781static void
782api_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);
788}
789
790/** Coro ********************************************************************/
791
792#define PRIO_MAX 3
793#define PRIO_HIGH 1
794#define PRIO_NORMAL 0
795#define PRIO_LOW -1
796#define PRIO_IDLE -3
797#define PRIO_MIN -4
798
799/* for Coro.pm */
800static GV *coro_current, *coro_idle;
801static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
802static int coro_nready;
803
804static void
805coro_enq (SV *sv)
806{
807 if (SvROK (sv))
808 {
809 SV *hv = SvRV (sv);
810 if (SvTYPE (hv) == SVt_PVHV)
811 {
812 SV **xprio = hv_fetch ((HV *)hv, "prio", 4, 0);
813 int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
814
815 prio = prio > PRIO_MAX ? PRIO_MAX
816 : prio < PRIO_MIN ? PRIO_MIN
817 : prio;
818
819 av_push (coro_ready [prio - PRIO_MIN], sv);
820 coro_nready++;
821
822 return;
823 }
824 }
825
826 croak ("Coro::ready tried to enqueue something that is not a coroutine");
827}
828
829static SV *
830coro_deq (int min_prio)
831{
832 int prio = PRIO_MAX - PRIO_MIN;
833
834 min_prio -= PRIO_MIN;
835 if (min_prio < 0)
836 min_prio = 0;
837
838 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
839 if (av_len (coro_ready[prio]) >= 0)
840 {
841 coro_nready--;
842 return av_shift (coro_ready[prio]);
843 }
844
845 return 0;
846}
847
848static void
849api_ready (SV *coro)
850{
851 coro_enq (SvREFCNT_inc (coro));
852}
853
854static void
855api_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);
739} 876}
740 877
741MODULE = Coro::State PACKAGE = Coro::State 878MODULE = Coro::State PACKAGE = Coro::State
742 879
743PROTOTYPES: ENABLE 880PROTOTYPES: ENABLE
… …
755 892
756 if (!padlist_cache) 893 if (!padlist_cache)
757 padlist_cache = newHV (); 894 padlist_cache = newHV ();
758 895
759 main_mainstack = PL_mainstack; 896 main_mainstack = PL_mainstack;
897
898 coroapi.ver = CORO_API_VERSION;
899 coroapi.transfer = api_transfer;
760} 900}
761 901
762Coro::State 902Coro::State
763_newprocess(args) 903_newprocess(args)
764 SV * args 904 SV * args
… …
778 RETVAL = coro; 918 RETVAL = coro;
779 OUTPUT: 919 OUTPUT:
780 RETVAL 920 RETVAL
781 921
782void 922void
783transfer(prev, next, flags = TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK) 923transfer(prev, next, flags)
784 Coro::State_or_hashref prev 924 Coro::State_or_hashref prev
785 Coro::State_or_hashref next 925 Coro::State_or_hashref next
786 int flags 926 int flags
787 PROTOTYPE: @ 927 PROTOTYPE: @
788 CODE: 928 CODE:
929 PUTBACK;
789 transfer (aTHX_ prev, next, flags); 930 transfer (aTHX_ prev, next, flags);
931 SPAGAIN;
790 932
791void 933void
792DESTROY(coro) 934DESTROY(coro)
793 Coro::State coro 935 Coro::State coro
794 CODE: 936 CODE:
795 937
796 if (coro->mainstack && coro->mainstack != main_mainstack) 938 if (coro->mainstack && coro->mainstack != main_mainstack)
797 { 939 {
798 struct coro temp; 940 struct coro temp;
799 941
942 PUTBACK;
800 SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL); 943 SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);
801 LOAD(aTHX_ coro); 944 LOAD(aTHX_ coro);
945 SPAGAIN;
802 946
803 destroy_stacks (aTHX); 947 destroy_stacks (aTHX);
804 948
805 LOAD((&temp)); /* this will get rid of defsv etc.. */ 949 LOAD((&temp)); /* this will get rid of defsv etc.. */
950 SPAGAIN;
806 951
807 coro->mainstack = 0; 952 coro->mainstack = 0;
808 } 953 }
809 954
810 deallocate_stack (coro); 955 deallocate_stack (coro);
… …
816 CODE: 961 CODE:
817#ifdef MAY_FLUSH 962#ifdef MAY_FLUSH
818 flush_padlist_cache (); 963 flush_padlist_cache ();
819#endif 964#endif
820 965
966void
967_exit(code)
968 int code
969 PROTOTYPE: $
970 CODE:
971#if defined(__GLIBC__) || _POSIX_C_SOURCE
972 _exit (code);
973#else
974 signal (SIGTERM, SIG_DFL);
975 raise (SIGTERM);
976 exit (code);
977#endif
978
821MODULE = Coro::State PACKAGE = Coro::Cont 979MODULE = Coro::State PACKAGE = Coro::Cont
822 980
823# this is slightly dirty 981# this is slightly dirty (should expose a c-level api)
824 982
825void 983void
826yield(...) 984yield(...)
827 PROTOTYPE: @ 985 PROTOTYPE: @
828 CODE: 986 CODE:
… …
846 next = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0))); 1004 next = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0)));
847 SvREFCNT_dec (sv); 1005 SvREFCNT_dec (sv);
848 1006
849 transfer(aTHX_ prev, next, 0); 1007 transfer(aTHX_ prev, next, 0);
850 1008
1009MODULE = Coro::State PACKAGE = Coro
1010
1011# this is slightly dirty (should expose a c-level api)
1012
1013BOOT:
1014{
1015 int i;
1016 HV *stash = gv_stashpv ("Coro", TRUE);
1017
1018 newCONSTSUB (stash, "PRIO_MAX", newSViv (PRIO_MAX));
1019 newCONSTSUB (stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1020 newCONSTSUB (stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1021 newCONSTSUB (stash, "PRIO_LOW", newSViv (PRIO_LOW));
1022 newCONSTSUB (stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1023 newCONSTSUB (stash, "PRIO_MIN", newSViv (PRIO_MIN));
1024
1025 coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);
1026 coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);
1027
1028 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
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 }
1043}
1044
1045void
1046ready(self)
1047 SV * self
1048 PROTOTYPE: $
1049 CODE:
1050 api_ready (self);
1051
1052int
1053nready(...)
1054 PROTOTYPE:
1055 CODE:
1056 RETVAL = coro_nready;
1057 OUTPUT:
1058 RETVAL
1059
1060void
1061schedule(...)
1062 PROTOTYPE:
1063 ALIAS:
1064 cede = 1
1065 CODE:
1066 api_schedule (ix);
1067

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