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Comparing Coro/Coro/State.xs (file contents):
Revision 1.100 by root, Mon Nov 27 00:07:49 2006 UTC vs.
Revision 1.108 by root, Mon Nov 27 18:15:47 2006 UTC

3#include "EXTERN.h" 3#include "EXTERN.h"
4#include "perl.h" 4#include "perl.h"
5#include "XSUB.h" 5#include "XSUB.h"
6 6
7#include "patchlevel.h" 7#include "patchlevel.h"
8
9#if USE_VALGRIND
10# include <valgrind/valgrind.h>
11#endif
8 12
9#define PERL_VERSION_ATLEAST(a,b,c) \ 13#define PERL_VERSION_ATLEAST(a,b,c) \
10 (PERL_REVISION > (a) \ 14 (PERL_REVISION > (a) \
11 || (PERL_REVISION == (a) \ 15 || (PERL_REVISION == (a) \
12 && (PERL_VERSION > (b) \ 16 && (PERL_VERSION > (b) \
58# ifndef PAGESIZE 62# ifndef PAGESIZE
59# define PAGESIZE pagesize 63# define PAGESIZE pagesize
60# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) 64# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
61static long pagesize; 65static long pagesize;
62# else 66# else
63# define BOOT_PAGESIZE 67# define BOOT_PAGESIZE (void)0
64# endif 68# endif
69#else
70# define PAGESIZE 0
71# define BOOT_PAGESIZE (void)0
65#endif 72#endif
66 73
67/* The next macro should declare a variable stacklevel that contains and approximation 74/* The next macro should declare a variable stacklevel that contains and approximation
68 * to the current C stack pointer. Its property is that it changes with each call 75 * to the current C stack pointer. Its property is that it changes with each call
69 * and should be unique. */ 76 * and should be unique. */
96static struct CoroAPI coroapi; 103static struct CoroAPI coroapi;
97static AV *main_mainstack; /* used to differentiate between $main and others */ 104static AV *main_mainstack; /* used to differentiate between $main and others */
98static HV *coro_state_stash, *coro_stash; 105static HV *coro_state_stash, *coro_stash;
99static SV *coro_mortal; /* will be freed after next transfer */ 106static SV *coro_mortal; /* will be freed after next transfer */
100 107
108static struct coro_cctx *cctx_first;
109static int cctx_count, cctx_idle;
110
101/* this is a structure representing a c-level coroutine */ 111/* this is a structure representing a c-level coroutine */
102typedef struct coro_stack { 112typedef struct coro_cctx {
103 struct coro_stack *next; 113 struct coro_cctx *next;
104 114
105 /* the stack */ 115 /* the stack */
106 void *sptr; 116 void *sptr;
107 long ssize; /* positive == mmap, otherwise malloc */ 117 long ssize; /* positive == mmap, otherwise malloc */
108 118
109 /* cpu state */ 119 /* cpu state */
110 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 120 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
111 JMPENV *top_env; 121 JMPENV *top_env;
112 coro_context cctx; 122 coro_context cctx;
113} coro_stack; 123
124#if USE_VALGRIND
125 int valgrind_id;
126#endif
127} coro_cctx;
114 128
115/* this is a structure representing a perl-level coroutine */ 129/* this is a structure representing a perl-level coroutine */
116struct coro { 130struct coro {
117 /* the c coroutine allocated to this perl coroutine, if any */ 131 /* the c coroutine allocated to this perl coroutine, if any */
118 coro_stack *stack; 132 coro_cctx *cctx;
119 133
120 /* data associated with this coroutine (initial args) */ 134 /* data associated with this coroutine (initial args) */
121 AV *args; 135 AV *args;
122 int refcnt; 136 int refcnt;
123 137
124 /* optionally saved, might be zero */ 138 /* optionally saved, might be zero */
125 AV *defav; 139 AV *defav;
126 SV *defsv; 140 SV *defsv;
127 SV *errsv; 141 SV *errsv;
128 142
129 /* saved global state not related to stacks */ 143#define VAR(name,type) type name;
130 U8 dowarn; 144# include "state.h"
131 I32 in_eval; 145#undef VAR
132
133 /* the stacks and related info (callchain etc..) */
134 PERL_SI *curstackinfo;
135 AV *curstack;
136 AV *mainstack;
137 SV **stack_sp;
138 OP *op;
139 SV **curpad;
140 AV *comppad;
141 CV *compcv;
142 SV **stack_base;
143 SV **stack_max;
144 SV **tmps_stack;
145 I32 tmps_floor;
146 I32 tmps_ix;
147 I32 tmps_max;
148 I32 *markstack;
149 I32 *markstack_ptr;
150 I32 *markstack_max;
151 I32 *scopestack;
152 I32 scopestack_ix;
153 I32 scopestack_max;
154 ANY *savestack;
155 I32 savestack_ix;
156 I32 savestack_max;
157 OP **retstack;
158 I32 retstack_ix;
159 I32 retstack_max;
160 PMOP *curpm;
161 COP *curcop;
162 146
163 /* coro process data */ 147 /* coro process data */
164 int prio; 148 int prio;
165}; 149};
166 150
279#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE 263#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
280 264
281static void 265static void
282load_state(Coro__State c) 266load_state(Coro__State c)
283{ 267{
284 PL_dowarn = c->dowarn; 268#define VAR(name,type) PL_ ## name = c->name;
285 PL_in_eval = c->in_eval; 269# include "state.h"
286 270#undef VAR
287 PL_curstackinfo = c->curstackinfo;
288 PL_curstack = c->curstack;
289 PL_mainstack = c->mainstack;
290 PL_stack_sp = c->stack_sp;
291 PL_op = c->op;
292 PL_curpad = c->curpad;
293 PL_comppad = c->comppad;
294 PL_compcv = c->compcv;
295 PL_stack_base = c->stack_base;
296 PL_stack_max = c->stack_max;
297 PL_tmps_stack = c->tmps_stack;
298 PL_tmps_floor = c->tmps_floor;
299 PL_tmps_ix = c->tmps_ix;
300 PL_tmps_max = c->tmps_max;
301 PL_markstack = c->markstack;
302 PL_markstack_ptr = c->markstack_ptr;
303 PL_markstack_max = c->markstack_max;
304 PL_scopestack = c->scopestack;
305 PL_scopestack_ix = c->scopestack_ix;
306 PL_scopestack_max = c->scopestack_max;
307 PL_savestack = c->savestack;
308 PL_savestack_ix = c->savestack_ix;
309 PL_savestack_max = c->savestack_max;
310#if !PERL_VERSION_ATLEAST (5,9,0)
311 PL_retstack = c->retstack;
312 PL_retstack_ix = c->retstack_ix;
313 PL_retstack_max = c->retstack_max;
314#endif
315 PL_curpm = c->curpm;
316 PL_curcop = c->curcop;
317 271
318 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 272 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
319 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 273 if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
320 if (c->errsv) REPLACE_SV (ERRSV , c->errsv); 274 if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
321 275
406 360
407 c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; 361 c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
408 c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; 362 c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
409 c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; 363 c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
410 364
411 c->dowarn = PL_dowarn; 365#define VAR(name,type)c->name = PL_ ## name;
412 c->in_eval = PL_in_eval; 366# include "state.h"
413 367#undef VAR
414 c->curstackinfo = PL_curstackinfo;
415 c->curstack = PL_curstack;
416 c->mainstack = PL_mainstack;
417 c->stack_sp = PL_stack_sp;
418 c->op = PL_op;
419 c->curpad = PL_curpad;
420 c->comppad = PL_comppad;
421 c->compcv = PL_compcv;
422 c->stack_base = PL_stack_base;
423 c->stack_max = PL_stack_max;
424 c->tmps_stack = PL_tmps_stack;
425 c->tmps_floor = PL_tmps_floor;
426 c->tmps_ix = PL_tmps_ix;
427 c->tmps_max = PL_tmps_max;
428 c->markstack = PL_markstack;
429 c->markstack_ptr = PL_markstack_ptr;
430 c->markstack_max = PL_markstack_max;
431 c->scopestack = PL_scopestack;
432 c->scopestack_ix = PL_scopestack_ix;
433 c->scopestack_max = PL_scopestack_max;
434 c->savestack = PL_savestack;
435 c->savestack_ix = PL_savestack_ix;
436 c->savestack_max = PL_savestack_max;
437#if !PERL_VERSION_ATLEAST (5,9,0)
438 c->retstack = PL_retstack;
439 c->retstack_ix = PL_retstack_ix;
440 c->retstack_max = PL_retstack_max;
441#endif
442 c->curpm = PL_curpm;
443 c->curcop = PL_curcop;
444} 368}
445 369
446/* 370/*
447 * allocate various perl stacks. This is an exact copy 371 * allocate various perl stacks. This is an exact copy
448 * of perl.c:init_stacks, except that it uses less memory 372 * of perl.c:init_stacks, except that it uses less memory
491 415
492/* 416/*
493 * destroy the stacks, the callchain etc... 417 * destroy the stacks, the callchain etc...
494 */ 418 */
495static void 419static void
496destroy_stacks() 420coro_destroy_stacks ()
497{ 421{
498 if (!IN_DESTRUCT) 422 if (!IN_DESTRUCT)
499 { 423 {
500 /* is this ugly, I ask? */ 424 /* is this ugly, I ask? */
501 LEAVE_SCOPE (0); 425 LEAVE_SCOPE (0);
543setup_coro (struct coro *coro) 467setup_coro (struct coro *coro)
544{ 468{
545 /* 469 /*
546 * emulate part of the perl startup here. 470 * emulate part of the perl startup here.
547 */ 471 */
548 dTHX;
549 dSP;
550 UNOP myop;
551 SV *sub_init = (SV *)get_cv ("Coro::State::coro_init", FALSE);
552 472
553 coro_init_stacks (); 473 coro_init_stacks ();
474
554 /*PL_curcop = 0;*/ 475 PL_curcop = 0;
555 /*PL_in_eval = PL_in_eval;*/ /* inherit */ 476 PL_in_eval = 0;
477 PL_curpm = 0;
478
479 {
480 dSP;
481 LOGOP myop;
482
483 /* I have no idea why this is needed, but it is */
484 PUSHMARK (SP);
485
556 SvREFCNT_dec (GvAV (PL_defgv)); 486 SvREFCNT_dec (GvAV (PL_defgv));
557 GvAV (PL_defgv) = coro->args; coro->args = 0; 487 GvAV (PL_defgv) = coro->args; coro->args = 0;
558 488
559 SPAGAIN;
560
561 Zero (&myop, 1, UNOP); 489 Zero (&myop, 1, LOGOP);
562 myop.op_next = Nullop; 490 myop.op_next = Nullop;
563 myop.op_flags = OPf_WANT_VOID; 491 myop.op_flags = OPf_WANT_VOID;
564 492
565 PL_op = (OP *)&myop; 493 PL_op = (OP *)&myop;
566 494
567 PUSHMARK(SP); 495 PUSHMARK (SP);
568 XPUSHs (sub_init); 496 XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));
569 PUTBACK; 497 PUTBACK;
570 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 498 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
571 SPAGAIN; 499 SPAGAIN;
572 500
573 ENTER; /* necessary e.g. for dounwind */ 501 ENTER; /* necessary e.g. for dounwind */
502 }
574} 503}
575 504
576static void 505static void
577free_coro_mortal () 506free_coro_mortal ()
578{ 507{
582 coro_mortal = 0; 511 coro_mortal = 0;
583 } 512 }
584} 513}
585 514
586static void NOINLINE 515static void NOINLINE
587prepare_cctx (coro_stack *cctx) 516prepare_cctx (coro_cctx *cctx)
588{ 517{
589 dSP; 518 dSP;
590 UNOP myop; 519 LOGOP myop;
591 520
592 Zero (&myop, 1, UNOP); 521 Zero (&myop, 1, LOGOP);
593 myop.op_next = PL_op; 522 myop.op_next = PL_op;
594 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 523 myop.op_flags = OPf_WANT_VOID;
595 524
525 sv_setiv (get_sv ("Coro::State::_cctx", FALSE), PTR2IV (cctx));
526
596 PUSHMARK(SP); 527 PUSHMARK (SP);
597 EXTEND (SP, 2);
598 PUSHs (newSViv (PTR2IV (cctx)));
599 PUSHs ((SV *)get_cv ("Coro::State::cctx_init", FALSE)); 528 XPUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
600 PUTBACK; 529 PUTBACK;
601 PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX); 530 PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX);
602 SPAGAIN; 531 SPAGAIN;
603} 532}
604 533
605static void 534static void
606coro_run (void *arg) 535coro_run (void *arg)
607{ 536{
537 /* coro_run is the alternative epilogue of transfer() */
538 UNLOCK;
539
608 /* 540 /*
609 * this is a _very_ stripped down perl interpreter ;) 541 * this is a _very_ stripped down perl interpreter ;)
610 */ 542 */
611 UNLOCK;
612
613 PL_top_env = &PL_start_env; 543 PL_top_env = &PL_start_env;
544
545 /* inject call to cctx_init */
614 prepare_cctx ((coro_stack *)arg); 546 prepare_cctx ((coro_cctx *)arg);
615 547
616 /* somebody will hit me for both perl_run and PL_restartop */ 548 /* somebody will hit me for both perl_run and PL_restartop */
617 perl_run (PERL_GET_CONTEXT); 549 perl_run (PL_curinterp);
618 550
619 fputs ("FATAL: C coroutine fell over the edge of the world, aborting.\n", stderr); 551 fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);
620 abort (); 552 abort ();
621} 553}
622 554
623static coro_stack * 555static coro_cctx *
624stack_new () 556cctx_new ()
625{ 557{
626 coro_stack *stack; 558 coro_cctx *cctx;
627 559
560 ++cctx_count;
561
628 New (0, stack, 1, coro_stack); 562 New (0, cctx, 1, coro_cctx);
629 563
630#if HAVE_MMAP 564#if HAVE_MMAP
631 565
632 stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; 566 cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
633 /* mmap suppsedly does allocate-on-write for us */ 567 /* mmap suppsedly does allocate-on-write for us */
634 stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 568 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
635 569
636 if (stack->sptr == (void *)-1) 570 if (cctx->sptr == (void *)-1)
637 { 571 {
638 perror ("FATAL: unable to mmap stack for coroutine"); 572 perror ("FATAL: unable to mmap stack for coroutine");
639 _exit (EXIT_FAILURE); 573 _exit (EXIT_FAILURE);
640 } 574 }
641 575
642# if STACKGUARD 576# if STACKGUARD
643 mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE); 577 mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
644# endif 578# endif
645 579
646#else 580#else
647 581
648 stack->ssize = STACKSIZE * (long)sizeof (long); 582 cctx->ssize = STACKSIZE * (long)sizeof (long);
649 New (0, stack->sptr, STACKSIZE, long); 583 New (0, cctx->sptr, STACKSIZE, long);
650 584
651 if (!stack->sptr) 585 if (!cctx->sptr)
652 { 586 {
653 perror (stderr, "FATAL: unable to malloc stack for coroutine"); 587 perror ("FATAL: unable to malloc stack for coroutine");
654 _exit (EXIT_FAILURE); 588 _exit (EXIT_FAILURE);
655 } 589 }
656 590
657#endif 591#endif
658 592
593#if USE_VALGRIND
594 cctx->valgrind_id = VALGRIND_STACK_REGISTER (
595 STACKGUARD * PAGESIZE + (char *)cctx->sptr,
596 cctx->ssize + (char *)cctx->sptr
597 );
598#endif
599
659 coro_create (&stack->cctx, coro_run, (void *)stack, stack->sptr, stack->ssize); 600 coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);
660 601
661 return stack; 602 return cctx;
662} 603}
663 604
664static void 605static void
665stack_free (coro_stack *stack) 606cctx_free (coro_cctx *cctx)
666{ 607{
667 if (!stack) 608 if (!cctx)
668 return; 609 return;
669 610
611 --cctx_count;
612
613#if USE_VALGRIND
614 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
615#endif
616
670#if HAVE_MMAP 617#if HAVE_MMAP
671 munmap (stack->sptr, stack->ssize); 618 munmap (cctx->sptr, cctx->ssize);
672#else 619#else
673 Safefree (stack->sptr); 620 Safefree (cctx->sptr);
674#endif 621#endif
675 622
676 Safefree (stack); 623 Safefree (cctx);
677} 624}
678 625
679static coro_stack *stack_first;
680
681static coro_stack * 626static coro_cctx *
682stack_get () 627cctx_get ()
683{ 628{
684 coro_stack *stack; 629 coro_cctx *cctx;
685 630
686 if (stack_first) 631 if (cctx_first)
687 { 632 {
688 stack = stack_first; 633 --cctx_idle;
634 cctx = cctx_first;
689 stack_first = stack->next; 635 cctx_first = cctx->next;
690 } 636 }
691 else 637 else
692 { 638 {
693 stack = stack_new (); 639 cctx = cctx_new ();
694 PL_op = PL_op->op_next; 640 PL_op = PL_op->op_next;
695 } 641 }
696 642
697 return stack; 643 return cctx;
698} 644}
699 645
700static void 646static void
701stack_put (coro_stack *stack) 647cctx_put (coro_cctx *cctx)
702{ 648{
703 stack->next = stack_first; 649 ++cctx_idle;
704 stack_first = stack; 650 cctx->next = cctx_first;
651 cctx_first = cctx;
705} 652}
706 653
707/* never call directly, always through the coro_state_transfer global variable */ 654/* never call directly, always through the coro_state_transfer global variable */
708static void NOINLINE 655static void NOINLINE
709transfer (struct coro *prev, struct coro *next, int flags) 656transfer (struct coro *prev, struct coro *next, int flags)
710{ 657{
711 dSTACKLEVEL; 658 dSTACKLEVEL;
712 659
713 /* sometimes transfer is only called to set idle_sp */ 660 /* sometimes transfer is only called to set idle_sp */
714 if (flags == TRANSFER_SET_STACKLEVEL) 661 if (flags == TRANSFER_SET_STACKLEVEL)
715 ((coro_stack *)prev)->idle_sp = STACKLEVEL; 662 ((coro_cctx *)prev)->idle_sp = STACKLEVEL;
716 else if (prev != next) 663 else if (prev != next)
717 { 664 {
718 coro_stack *prev__stack; 665 coro_cctx *prev__cctx;
719 666
720 LOCK; 667 LOCK;
721 668
722 if (next->mainstack) 669 if (next->mainstack)
723 { 670 {
731 /* first get rid of the old state */ 678 /* first get rid of the old state */
732 SAVE (prev, -1); 679 SAVE (prev, -1);
733 /* setup coroutine call */ 680 /* setup coroutine call */
734 setup_coro (next); 681 setup_coro (next);
735 /* need a stack */ 682 /* need a stack */
736 next->stack = 0; 683 next->cctx = 0;
737 } 684 }
738 685
739 if (!prev->stack) 686 if (!prev->cctx)
740 /* create a new empty context */ 687 /* create a new empty context */
741 Newz (0, prev->stack, 1, coro_stack); 688 Newz (0, prev->cctx, 1, coro_cctx);
742 689
743 prev__stack = prev->stack; 690 prev__cctx = prev->cctx;
744 691
745 /* possibly "free" the stack */ 692 /* possibly "free" the cctx */
746 if (prev__stack->idle_sp == STACKLEVEL) 693 if (prev__cctx->idle_sp == STACKLEVEL)
747 { 694 {
748 stack_put (prev__stack); 695 cctx_put (prev__cctx);
749 prev->stack = 0; 696 prev->cctx = 0;
750 } 697 }
751 698
752 if (!next->stack) 699 if (!next->cctx)
753 next->stack = stack_get (); 700 next->cctx = cctx_get ();
754 701
755 if (prev__stack != next->stack) 702 if (prev__cctx != next->cctx)
756 { 703 {
757 prev__stack->top_env = PL_top_env; 704 prev__cctx->top_env = PL_top_env;
758 PL_top_env = next->stack->top_env; 705 PL_top_env = next->cctx->top_env;
759 coro_transfer (&prev__stack->cctx, &next->stack->cctx); 706 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
760 } 707 }
761 708
762 free_coro_mortal (); 709 free_coro_mortal ();
763 710
764 UNLOCK; 711 UNLOCK;
784 struct coro temp; 731 struct coro temp;
785 732
786 SAVE ((&temp), TRANSFER_SAVE_ALL); 733 SAVE ((&temp), TRANSFER_SAVE_ALL);
787 LOAD (coro); 734 LOAD (coro);
788 735
789 destroy_stacks (); 736 coro_destroy_stacks ();
790 737
791 LOAD ((&temp)); /* this will get rid of defsv etc.. */ 738 LOAD ((&temp)); /* this will get rid of defsv etc.. */
792 739
793 coro->mainstack = 0; 740 coro->mainstack = 0;
794 } 741 }
795 742
796 stack_free (coro->stack); 743 cctx_free (coro->cctx);
797 SvREFCNT_dec (coro->args); 744 SvREFCNT_dec (coro->args);
798 Safefree (coro); 745 Safefree (coro);
799} 746}
800 747
801static int 748static int
823 0, 0, 0, 0, 770 0, 0, 0, 0,
824 coro_state_clear, 771 coro_state_clear,
825 0, 772 0,
826#ifdef MGf_DUP 773#ifdef MGf_DUP
827 coro_state_dup, 774 coro_state_dup,
775#else
776# define MGf_DUP 0
828#endif 777#endif
829}; 778};
830 779
831static struct coro * 780static struct coro *
832SvSTATE (SV *coro) 781SvSTATE (SV *coro)
1043 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; 992 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;
1044 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 993 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1045 994
1046 for (i = 1; i < items; i++) 995 for (i = 1; i < items; i++)
1047 av_push (coro->args, newSVsv (ST (i))); 996 av_push (coro->args, newSVsv (ST (i)));
1048
1049 /*coro->mainstack = 0; *//*actual work is done inside transfer */
1050 /*coro->stack = 0;*/
1051} 997}
1052 OUTPUT: 998 OUTPUT:
1053 RETVAL 999 RETVAL
1054 1000
1055void 1001void
1064 struct transfer_args ta; 1010 struct transfer_args ta;
1065 1011
1066 switch (ix) 1012 switch (ix)
1067 { 1013 {
1068 case 0: 1014 case 0:
1069 ta.prev = (struct coro *)INT2PTR (coro_stack *, SvIV (ST (0))); 1015 ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0)));
1070 ta.next = 0; 1016 ta.next = 0;
1071 ta.flags = TRANSFER_SET_STACKLEVEL; 1017 ta.flags = TRANSFER_SET_STACKLEVEL;
1072 break; 1018 break;
1073 1019
1074 case 1: 1020 case 1:
1134 int code 1080 int code
1135 PROTOTYPE: $ 1081 PROTOTYPE: $
1136 CODE: 1082 CODE:
1137 _exit (code); 1083 _exit (code);
1138 1084
1085int
1086cctx_count ()
1087 CODE:
1088 RETVAL = cctx_count;
1089 OUTPUT:
1090 RETVAL
1091
1092int
1093cctx_idle ()
1094 CODE:
1095 RETVAL = cctx_idle;
1096 OUTPUT:
1097 RETVAL
1098
1139MODULE = Coro::State PACKAGE = Coro 1099MODULE = Coro::State PACKAGE = Coro
1140 1100
1141BOOT: 1101BOOT:
1142{ 1102{
1143 int i; 1103 int i;

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