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Comparing Coro/Coro/State.xs (file contents):
Revision 1.158 by root, Fri Sep 21 02:23:48 2007 UTC vs.
Revision 1.187 by root, Fri Oct 5 20:31:18 2007 UTC

… …
132static AV *main_mainstack; /* used to differentiate between $main and others */ 132static AV *main_mainstack; /* used to differentiate between $main and others */
133static JMPENV *main_top_env; 133static JMPENV *main_top_env;
134static HV *coro_state_stash, *coro_stash; 134static HV *coro_state_stash, *coro_stash;
135static SV *coro_mortal; /* will be freed after next transfer */ 135static SV *coro_mortal; /* will be freed after next transfer */
136 136
137static GV *irsgv; /* $/ */
138
139/* async_pool helper stuff */
140static SV *sv_pool_rss;
141static SV *sv_pool_size;
142static AV *av_async_pool;
143
137static struct coro_cctx *cctx_first; 144static struct coro_cctx *cctx_first;
138static int cctx_count, cctx_idle; 145static int cctx_count, cctx_idle;
146
147enum {
148 CC_MAPPED = 0x01,
149 CC_NOREUSE = 0x02, /* throw this away after tracing */
150 CC_TRACE = 0x04,
151 CC_TRACE_SUB = 0x08, /* trace sub calls */
152 CC_TRACE_LINE = 0x10, /* trace each statement */
153 CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE,
154};
139 155
140/* this is a structure representing a c-level coroutine */ 156/* this is a structure representing a c-level coroutine */
141typedef struct coro_cctx { 157typedef struct coro_cctx {
142 struct coro_cctx *next; 158 struct coro_cctx *next;
143 159
… …
152 coro_context cctx; 168 coro_context cctx;
153 169
154#if CORO_USE_VALGRIND 170#if CORO_USE_VALGRIND
155 int valgrind_id; 171 int valgrind_id;
156#endif 172#endif
157 char inuse, mapped; 173 unsigned char flags;
158} coro_cctx; 174} coro_cctx;
159 175
160enum { 176enum {
161 CF_RUNNING = 0x0001, /* coroutine is running */ 177 CF_RUNNING = 0x0001, /* coroutine is running */
162 CF_READY = 0x0002, /* coroutine is ready */ 178 CF_READY = 0x0002, /* coroutine is ready */
… …
170 coro_cctx *cctx; 186 coro_cctx *cctx;
171 187
172 /* data associated with this coroutine (initial args) */ 188 /* data associated with this coroutine (initial args) */
173 AV *args; 189 AV *args;
174 int refcnt; 190 int refcnt;
175 int save; /* CORO_SAVE flags */
176 int flags; /* CF_ flags */ 191 int flags; /* CF_ flags */
177 192
178 /* optionally saved, might be zero */ 193 /* optionally saved, might be zero */
179 AV *defav; /* @_ */ 194 AV *defav; /* @_ */
180 SV *defsv; /* $_ */ 195 SV *defsv; /* $_ */
181 SV *errsv; /* $@ */ 196 SV *errsv; /* $@ */
182 GV *deffh; /* default filehandle */ 197 SV *deffh; /* default filehandle */
183 SV *irssv; /* $/ */ 198 SV *irssv; /* $/ */
184 SV *irssv_sv; /* real $/ cache */ 199 SV *irssv_sv; /* real $/ cache */
185 200
186#define VAR(name,type) type name; 201#define VAR(name,type) type name;
187# include "state.h" 202# include "state.h"
188#undef VAR 203#undef VAR
189 204
205 /* statistics */
206 int usecount; /* number of transfers to this coro */
207
190 /* coro process data */ 208 /* coro process data */
191 int prio; 209 int prio;
210 //SV *throw;
211
212 /* async_pool */
213 SV *saved_deffh;
192 214
193 /* linked list */ 215 /* linked list */
194 struct coro *next, *prev; 216 struct coro *next, *prev;
195 HV *hv; /* the perl hash associated with this coro, if any */ 217 HV *hv; /* the perl hash associated with this coro, if any */
196}; 218};
… …
284 SvMAGIC (cv) \ 306 SvMAGIC (cv) \
285 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ 307 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
286 ? SvMAGIC (cv) \ 308 ? SvMAGIC (cv) \
287 : mg_find ((SV *)cv, PERL_MAGIC_coro) \ 309 : mg_find ((SV *)cv, PERL_MAGIC_coro) \
288 : 0 310 : 0
311
312static struct coro *
313SvSTATE_ (pTHX_ SV *coro)
314{
315 HV *stash;
316 MAGIC *mg;
317
318 if (SvROK (coro))
319 coro = SvRV (coro);
320
321 if (SvTYPE (coro) != SVt_PVHV)
322 croak ("Coro::State object required");
323
324 stash = SvSTASH (coro);
325 if (stash != coro_stash && stash != coro_state_stash)
326 {
327 /* very slow, but rare, check */
328 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
329 croak ("Coro::State object required");
330 }
331
332 mg = CORO_MAGIC (coro);
333 return (struct coro *)mg->mg_ptr;
334}
335
336#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
289 337
290/* the next two functions merely cache the padlists */ 338/* the next two functions merely cache the padlists */
291static void 339static void
292get_padlist (pTHX_ CV *cv) 340get_padlist (pTHX_ CV *cv)
293{ 341{
… …
332 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 380 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
333} 381}
334 382
335/** load & save, init *******************************************************/ 383/** load & save, init *******************************************************/
336 384
337#define SB do {
338#define SE } while (0)
339
340#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
341
342static void 385static void
343load_perl (pTHX_ Coro__State c) 386load_perl (pTHX_ Coro__State c)
344{ 387{
345#define VAR(name,type) PL_ ## name = c->name; 388#define VAR(name,type) PL_ ## name = c->name;
346# include "state.h" 389# include "state.h"
347#undef VAR 390#undef VAR
348 391
349 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 392 GvSV (PL_defgv) = c->defsv;
350 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 393 GvAV (PL_defgv) = c->defav;
351 if (c->errsv) REPLACE_SV (ERRSV , c->errsv); 394 GvSV (PL_errgv) = c->errsv;
352 if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh); 395 GvSV (irsgv) = c->irssv_sv;
353
354 if (c->irssv)
355 {
356 if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv))
357 {
358 SvREFCNT_dec (c->irssv);
359 c->irssv = 0;
360 }
361 else
362 {
363 REPLACE_SV (PL_rs, c->irssv);
364 if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
365 sv_setsv (c->irssv_sv, PL_rs);
366 }
367 }
368 396
369 { 397 {
370 dSP; 398 dSP;
371 CV *cv; 399 CV *cv;
372 400
… …
430 } 458 }
431 459
432 PUTBACK; 460 PUTBACK;
433 } 461 }
434 462
435 c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; 463 c->defav = GvAV (PL_defgv);
436 c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; 464 c->defsv = DEFSV;
437 c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; 465 c->errsv = ERRSV;
438 c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0; 466 c->irssv_sv = GvSV (irsgv);
439 c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
440 467
441#define VAR(name,type)c->name = PL_ ## name; 468#define VAR(name,type)c->name = PL_ ## name;
442# include "state.h" 469# include "state.h"
443#undef VAR 470#undef VAR
444} 471}
… …
497 * destroy the stacks, the callchain etc... 524 * destroy the stacks, the callchain etc...
498 */ 525 */
499static void 526static void
500coro_destroy_stacks (pTHX) 527coro_destroy_stacks (pTHX)
501{ 528{
502 if (!IN_DESTRUCT)
503 {
504 /* restore all saved variables and stuff */
505 LEAVE_SCOPE (0);
506 assert (PL_tmps_floor == -1);
507
508 /* free all temporaries */
509 FREETMPS;
510 assert (PL_tmps_ix == -1);
511
512 /* unwind all extra stacks */
513 POPSTACK_TO (PL_mainstack);
514
515 /* unwind main stack */
516 dounwind (-1);
517 }
518
519 while (PL_curstackinfo->si_next) 529 while (PL_curstackinfo->si_next)
520 PL_curstackinfo = PL_curstackinfo->si_next; 530 PL_curstackinfo = PL_curstackinfo->si_next;
521 531
522 while (PL_curstackinfo) 532 while (PL_curstackinfo)
523 { 533 {
… …
539 Safefree (PL_retstack); 549 Safefree (PL_retstack);
540#endif 550#endif
541} 551}
542 552
543static size_t 553static size_t
544coro_rss (struct coro *coro) 554coro_rss (pTHX_ struct coro *coro)
545{ 555{
546 size_t rss = sizeof (coro); 556 size_t rss = sizeof (*coro);
547 557
548 if (coro->mainstack) 558 if (coro->mainstack)
549 { 559 {
550 if (coro->flags & CF_RUNNING) 560 if (coro->flags & CF_RUNNING)
551 { 561 {
… …
553 # include "state.h" 563 # include "state.h"
554 #undef VAR 564 #undef VAR
555 } 565 }
556 566
557 rss += sizeof (coro->curstackinfo); 567 rss += sizeof (coro->curstackinfo);
558 rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *); 568 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
559 rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); 569 rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
560 rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); 570 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
561 rss += coro->tmps_max * sizeof (SV *); 571 rss += coro->tmps_max * sizeof (SV *);
562 rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); 572 rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
563 rss += coro->scopestack_max * sizeof (I32); 573 rss += coro->scopestack_max * sizeof (I32);
564 rss += coro->savestack_max * sizeof (ANY); 574 rss += coro->savestack_max * sizeof (ANY);
565 575
… …
572} 582}
573 583
574/** coroutine stack handling ************************************************/ 584/** coroutine stack handling ************************************************/
575 585
576static void 586static void
577setup_coro (pTHX_ struct coro *coro) 587coro_setup (pTHX_ struct coro *coro)
578{ 588{
579 /* 589 /*
580 * emulate part of the perl startup here. 590 * emulate part of the perl startup here.
581 */ 591 */
582 coro_init_stacks (aTHX); 592 coro_init_stacks (aTHX);
583 593
594 PL_runops = RUNOPS_DEFAULT;
584 PL_curcop = &PL_compiling; 595 PL_curcop = &PL_compiling;
585 PL_in_eval = EVAL_NULL; 596 PL_in_eval = EVAL_NULL;
586 PL_comppad = 0; 597 PL_comppad = 0;
587 PL_curpm = 0; 598 PL_curpm = 0;
588 PL_localizing = 0; 599 PL_localizing = 0;
589 PL_dirty = 0; 600 PL_dirty = 0;
590 PL_restartop = 0; 601 PL_restartop = 0;
602
603 GvSV (PL_defgv) = NEWSV (0, 0);
604 GvAV (PL_defgv) = coro->args; coro->args = 0;
605 GvSV (PL_errgv) = NEWSV (0, 0);
606 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
607 PL_rs = newSVsv (GvSV (irsgv));
608
609 SvREFCNT_inc (PL_defoutgv);
591 610
592 { 611 {
593 dSP; 612 dSP;
594 LOGOP myop; 613 LOGOP myop;
595
596 SvREFCNT_dec (GvAV (PL_defgv));
597 GvAV (PL_defgv) = coro->args; coro->args = 0;
598 614
599 Zero (&myop, 1, LOGOP); 615 Zero (&myop, 1, LOGOP);
600 myop.op_next = Nullop; 616 myop.op_next = Nullop;
601 myop.op_flags = OPf_WANT_VOID; 617 myop.op_flags = OPf_WANT_VOID;
602 618
… …
610 626
611 ENTER; /* necessary e.g. for dounwind */ 627 ENTER; /* necessary e.g. for dounwind */
612} 628}
613 629
614static void 630static void
631coro_destroy (pTHX_ struct coro *coro)
632{
633 if (!IN_DESTRUCT)
634 {
635 /* restore all saved variables and stuff */
636 LEAVE_SCOPE (0);
637 assert (PL_tmps_floor == -1);
638
639 /* free all temporaries */
640 FREETMPS;
641 assert (PL_tmps_ix == -1);
642
643 /* unwind all extra stacks */
644 POPSTACK_TO (PL_mainstack);
645
646 /* unwind main stack */
647 dounwind (-1);
648 }
649
650 SvREFCNT_dec (GvSV (PL_defgv));
651 SvREFCNT_dec (GvAV (PL_defgv));
652 SvREFCNT_dec (GvSV (PL_errgv));
653 SvREFCNT_dec (PL_defoutgv);
654 SvREFCNT_dec (PL_rs);
655 SvREFCNT_dec (GvSV (irsgv));
656
657 SvREFCNT_dec (coro->saved_deffh);
658 //SvREFCNT_dec (coro->throw);
659
660 coro_destroy_stacks (aTHX);
661}
662
663static void
615free_coro_mortal (pTHX) 664free_coro_mortal (pTHX)
616{ 665{
617 if (coro_mortal) 666 if (coro_mortal)
618 { 667 {
619 SvREFCNT_dec (coro_mortal); 668 SvREFCNT_dec (coro_mortal);
620 coro_mortal = 0; 669 coro_mortal = 0;
621 } 670 }
671}
672
673static int
674runops_trace (pTHX)
675{
676 COP *oldcop = 0;
677 int oldcxix = -2;
678 struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */
679 coro_cctx *cctx = coro->cctx;
680
681 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
682 {
683 PERL_ASYNC_CHECK ();
684
685 if (cctx->flags & CC_TRACE_ALL)
686 {
687 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
688 {
689 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
690 SV **bot, **top;
691 AV *av = newAV (); /* return values */
692 SV **cb;
693 dSP;
694
695 GV *gv = CvGV (cx->blk_sub.cv);
696 SV *fullname = sv_2mortal (newSV (0));
697 if (isGV (gv))
698 gv_efullname3 (fullname, gv, 0);
699
700 bot = PL_stack_base + cx->blk_oldsp + 1;
701 top = cx->blk_gimme == G_ARRAY ? SP + 1
702 : cx->blk_gimme == G_SCALAR ? bot + 1
703 : bot;
704
705 while (bot < top)
706 av_push (av, SvREFCNT_inc (*bot++));
707
708 PL_runops = RUNOPS_DEFAULT;
709 ENTER;
710 SAVETMPS;
711 EXTEND (SP, 3);
712 PUSHMARK (SP);
713 PUSHs (&PL_sv_no);
714 PUSHs (fullname);
715 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
716 PUTBACK;
717 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
718 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
719 SPAGAIN;
720 FREETMPS;
721 LEAVE;
722 PL_runops = runops_trace;
723 }
724
725 if (oldcop != PL_curcop)
726 {
727 oldcop = PL_curcop;
728
729 if (PL_curcop != &PL_compiling)
730 {
731 SV **cb;
732
733 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
734 {
735 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
736
737 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
738 {
739 runops_proc_t old_runops = PL_runops;
740 dSP;
741 GV *gv = CvGV (cx->blk_sub.cv);
742 SV *fullname = sv_2mortal (newSV (0));
743
744 if (isGV (gv))
745 gv_efullname3 (fullname, gv, 0);
746
747 PL_runops = RUNOPS_DEFAULT;
748 ENTER;
749 SAVETMPS;
750 EXTEND (SP, 3);
751 PUSHMARK (SP);
752 PUSHs (&PL_sv_yes);
753 PUSHs (fullname);
754 PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
755 PUTBACK;
756 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
757 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
758 SPAGAIN;
759 FREETMPS;
760 LEAVE;
761 PL_runops = runops_trace;
762 }
763
764 oldcxix = cxstack_ix;
765 }
766
767 if (cctx->flags & CC_TRACE_LINE)
768 {
769 dSP;
770
771 PL_runops = RUNOPS_DEFAULT;
772 ENTER;
773 SAVETMPS;
774 EXTEND (SP, 3);
775 PL_runops = RUNOPS_DEFAULT;
776 PUSHMARK (SP);
777 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
778 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
779 PUTBACK;
780 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
781 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
782 SPAGAIN;
783 FREETMPS;
784 LEAVE;
785 PL_runops = runops_trace;
786 }
787 }
788 }
789 }
790 }
791
792 TAINT_NOT;
793 return 0;
622} 794}
623 795
624/* inject a fake call to Coro::State::_cctx_init into the execution */ 796/* inject a fake call to Coro::State::_cctx_init into the execution */
625/* _cctx_init should be careful, as it could be called at almost any time */ 797/* _cctx_init should be careful, as it could be called at almost any time */
626/* during execution of a perl program */ 798/* during execution of a perl program */
627static void NOINLINE 799static void NOINLINE
628prepare_cctx (pTHX_ coro_cctx *cctx) 800prepare_cctx (pTHX_ coro_cctx *cctx)
629{ 801{
630 dSP; 802 dSP;
631 LOGOP myop; 803 LOGOP myop;
804
805 PL_top_env = &PL_start_env;
806
807 if (cctx->flags & CC_TRACE)
808 PL_runops = runops_trace;
632 809
633 Zero (&myop, 1, LOGOP); 810 Zero (&myop, 1, LOGOP);
634 myop.op_next = PL_op; 811 myop.op_next = PL_op;
635 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 812 myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
636 813
… …
653 dTHX; 830 dTHX;
654 831
655 /* coro_run is the alternative tail of transfer(), so unlock here. */ 832 /* coro_run is the alternative tail of transfer(), so unlock here. */
656 UNLOCK; 833 UNLOCK;
657 834
658 PL_top_env = &PL_start_env; 835 /* we now skip the entersub that lead to transfer() */
836 PL_op = PL_op->op_next;
659 837
660 /* inject a fake subroutine call to cctx_init */ 838 /* inject a fake subroutine call to cctx_init */
661 prepare_cctx (aTHX_ (coro_cctx *)arg); 839 prepare_cctx (aTHX_ (coro_cctx *)arg);
662 840
663 /* somebody or something will hit me for both perl_run and PL_restartop */ 841 /* somebody or something will hit me for both perl_run and PL_restartop */
… …
697# if CORO_STACKGUARD 875# if CORO_STACKGUARD
698 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); 876 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
699# endif 877# endif
700 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; 878 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
701 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; 879 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
702 cctx->mapped = 1; 880 cctx->flags |= CC_MAPPED;
703 } 881 }
704 else 882 else
705#endif 883#endif
706 { 884 {
707 cctx->ssize = coro_stacksize * (long)sizeof (long); 885 cctx->ssize = coro_stacksize * (long)sizeof (long);
… …
734#if CORO_USE_VALGRIND 912#if CORO_USE_VALGRIND
735 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); 913 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
736#endif 914#endif
737 915
738#if HAVE_MMAP 916#if HAVE_MMAP
739 if (cctx->mapped) 917 if (cctx->flags & CC_MAPPED)
740 munmap (cctx->sptr, cctx->ssize); 918 munmap (cctx->sptr, cctx->ssize);
741 else 919 else
742#endif 920#endif
743 Safefree (cctx->sptr); 921 Safefree (cctx->sptr);
744 922
… …
752 { 930 {
753 coro_cctx *cctx = cctx_first; 931 coro_cctx *cctx = cctx_first;
754 cctx_first = cctx->next; 932 cctx_first = cctx->next;
755 --cctx_idle; 933 --cctx_idle;
756 934
757 if (cctx->ssize >= coro_stacksize) 935 if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
758 return cctx; 936 return cctx;
759 937
760 cctx_destroy (cctx); 938 cctx_destroy (cctx);
761 } 939 }
762 940
763 PL_op = PL_op->op_next;
764 return cctx_new (); 941 return cctx_new ();
765} 942}
766 943
767static void 944static void
768cctx_put (coro_cctx *cctx) 945cctx_put (coro_cctx *cctx)
… …
772 { 949 {
773 coro_cctx *first = cctx_first; 950 coro_cctx *first = cctx_first;
774 cctx_first = first->next; 951 cctx_first = first->next;
775 --cctx_idle; 952 --cctx_idle;
776 953
777 assert (!first->inuse);
778 cctx_destroy (first); 954 cctx_destroy (first);
779 } 955 }
780 956
781 ++cctx_idle; 957 ++cctx_idle;
782 cctx->next = cctx_first; 958 cctx->next = cctx_first;
783 cctx_first = cctx; 959 cctx_first = cctx;
784} 960}
785 961
786/** coroutine switching *****************************************************/ 962/** coroutine switching *****************************************************/
787 963
788/* never call directly, always through the coro_state_transfer global variable */ 964static void NOINLINE
965transfer_check (pTHX_ struct coro *prev, struct coro *next)
966{
967 if (prev != next)
968 {
969 if (!(prev->flags & (CF_RUNNING | CF_NEW)))
970 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
971
972 if (next->flags & CF_RUNNING)
973 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
974
975 if (next->flags & CF_DESTROYED)
976 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
977
978 if (PL_lex_state != LEX_NOTPARSING)
979 croak ("Coro::State::transfer called while parsing, but this is not supported");
980 }
981}
982
983/* always use the TRANSFER macro */
789static void NOINLINE 984static void NOINLINE
790transfer (pTHX_ struct coro *prev, struct coro *next) 985transfer (pTHX_ struct coro *prev, struct coro *next)
791{ 986{
792 dSTACKLEVEL; 987 dSTACKLEVEL;
793 988
… …
803 998
804 if (prev->flags & CF_NEW) 999 if (prev->flags & CF_NEW)
805 { 1000 {
806 /* create a new empty context */ 1001 /* create a new empty context */
807 Newz (0, prev->cctx, 1, coro_cctx); 1002 Newz (0, prev->cctx, 1, coro_cctx);
808 prev->cctx->inuse = 1;
809 prev->flags &= ~CF_NEW; 1003 prev->flags &= ~CF_NEW;
810 prev->flags |= CF_RUNNING; 1004 prev->flags |= CF_RUNNING;
811 } 1005 }
812
813 /*TODO: must not croak here */
814 if (!prev->flags & CF_RUNNING)
815 croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
816
817 if (next->flags & CF_RUNNING)
818 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
819
820 if (next->flags & CF_DESTROYED)
821 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
822 1006
823 prev->flags &= ~CF_RUNNING; 1007 prev->flags &= ~CF_RUNNING;
824 next->flags |= CF_RUNNING; 1008 next->flags |= CF_RUNNING;
825 1009
826 LOCK; 1010 LOCK;
… …
830 /* need to start coroutine */ 1014 /* need to start coroutine */
831 next->flags &= ~CF_NEW; 1015 next->flags &= ~CF_NEW;
832 /* first get rid of the old state */ 1016 /* first get rid of the old state */
833 save_perl (aTHX_ prev); 1017 save_perl (aTHX_ prev);
834 /* setup coroutine call */ 1018 /* setup coroutine call */
835 setup_coro (aTHX_ next); 1019 coro_setup (aTHX_ next);
836 /* need a new stack */
837 assert (!next->cctx);
838 } 1020 }
839 else 1021 else
840 { 1022 {
841 /* coroutine already started */ 1023 /* coroutine already started */
842 save_perl (aTHX_ prev); 1024 save_perl (aTHX_ prev);
… …
844 } 1026 }
845 1027
846 prev__cctx = prev->cctx; 1028 prev__cctx = prev->cctx;
847 1029
848 /* possibly "free" the cctx */ 1030 /* possibly "free" the cctx */
849 if (prev__cctx->idle_sp == STACKLEVEL) 1031 if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
850 { 1032 {
851 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ 1033 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
852 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); 1034 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
853 1035
854 prev->cctx = 0; 1036 prev->cctx = 0;
855 1037
856 cctx_put (prev__cctx); 1038 cctx_put (prev__cctx);
857 prev__cctx->inuse = 0;
858 } 1039 }
859 1040
1041 ++next->usecount;
1042
860 if (!next->cctx) 1043 if (!next->cctx)
861 {
862 next->cctx = cctx_get (aTHX); 1044 next->cctx = cctx_get (aTHX);
863 assert (!next->cctx->inuse);
864 next->cctx->inuse = 1;
865 }
866 1045
867 if (prev__cctx != next->cctx) 1046 if (prev__cctx != next->cctx)
868 { 1047 {
869 prev__cctx->top_env = PL_top_env; 1048 prev__cctx->top_env = PL_top_env;
870 PL_top_env = next->cctx->top_env; 1049 PL_top_env = next->cctx->top_env;
… …
880{ 1059{
881 struct coro *prev, *next; 1060 struct coro *prev, *next;
882}; 1061};
883 1062
884#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) 1063#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
1064#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
885 1065
886/** high level stuff ********************************************************/ 1066/** high level stuff ********************************************************/
887 1067
888static int 1068static int
889coro_state_destroy (pTHX_ struct coro *coro) 1069coro_state_destroy (pTHX_ struct coro *coro)
… …
906 1086
907 if (coro->mainstack && coro->mainstack != main_mainstack) 1087 if (coro->mainstack && coro->mainstack != main_mainstack)
908 { 1088 {
909 struct coro temp; 1089 struct coro temp;
910 1090
911 assert (!(coro->flags & CF_RUNNING));
912
913 Zero (&temp, 1, struct coro);
914 temp.save = CORO_SAVE_ALL;
915
916 if (coro->flags & CF_RUNNING) 1091 if (coro->flags & CF_RUNNING)
917 croak ("FATAL: tried to destroy currently running coroutine"); 1092 croak ("FATAL: tried to destroy currently running coroutine");
918 1093
919 save_perl (aTHX_ &temp); 1094 save_perl (aTHX_ &temp);
920 load_perl (aTHX_ coro); 1095 load_perl (aTHX_ coro);
921 1096
922 coro_destroy_stacks (aTHX); 1097 coro_destroy (aTHX_ coro);
923 1098
924 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ 1099 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
925 1100
926 coro->mainstack = 0; 1101 coro->mainstack = 0;
927 } 1102 }
… …
972#else 1147#else
973# define MGf_DUP 0 1148# define MGf_DUP 0
974#endif 1149#endif
975}; 1150};
976 1151
977static struct coro *
978SvSTATE_ (pTHX_ SV *coro)
979{
980 HV *stash;
981 MAGIC *mg;
982
983 if (SvROK (coro))
984 coro = SvRV (coro);
985
986 stash = SvSTASH (coro);
987 if (stash != coro_stash && stash != coro_state_stash)
988 {
989 /* very slow, but rare, check */
990 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
991 croak ("Coro::State object required");
992 }
993
994 mg = CORO_MAGIC (coro);
995 return (struct coro *)mg->mg_ptr;
996}
997
998#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
999
1000static void 1152static void
1001prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) 1153prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv)
1002{ 1154{
1003 ta->prev = SvSTATE (prev_sv); 1155 ta->prev = SvSTATE (prev_sv);
1004 ta->next = SvSTATE (next_sv); 1156 ta->next = SvSTATE (next_sv);
1157 TRANSFER_CHECK (*ta);
1005} 1158}
1006 1159
1007static void 1160static void
1008api_transfer (SV *prev_sv, SV *next_sv) 1161api_transfer (SV *prev_sv, SV *next_sv)
1009{ 1162{
1010 dTHX; 1163 dTHX;
1011 struct transfer_args ta; 1164 struct transfer_args ta;
1012 1165
1013 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1166 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1014 TRANSFER (ta); 1167 TRANSFER (ta);
1015}
1016
1017static int
1018api_save (SV *coro_sv, int new_save)
1019{
1020 dTHX;
1021 struct coro *coro = SvSTATE (coro_sv);
1022 int old_save = coro->save;
1023
1024 if (new_save >= 0)
1025 coro->save = new_save;
1026
1027 return old_save;
1028} 1168}
1029 1169
1030/** Coro ********************************************************************/ 1170/** Coro ********************************************************************/
1031 1171
1032static void 1172static void
… …
1126 break; 1266 break;
1127 } 1267 }
1128 1268
1129 /* free this only after the transfer */ 1269 /* free this only after the transfer */
1130 prev_sv = SvRV (coro_current); 1270 prev_sv = SvRV (coro_current);
1131 SvRV_set (coro_current, next_sv);
1132 ta->prev = SvSTATE (prev_sv); 1271 ta->prev = SvSTATE (prev_sv);
1133 1272 TRANSFER_CHECK (*ta);
1134 assert (ta->next->flags & CF_READY); 1273 assert (ta->next->flags & CF_READY);
1135 ta->next->flags &= ~CF_READY; 1274 ta->next->flags &= ~CF_READY;
1275 SvRV_set (coro_current, next_sv);
1136 1276
1137 LOCK; 1277 LOCK;
1138 free_coro_mortal (aTHX); 1278 free_coro_mortal (aTHX);
1139 coro_mortal = prev_sv; 1279 coro_mortal = prev_sv;
1140 UNLOCK; 1280 UNLOCK;
… …
1201 } 1341 }
1202 else 1342 else
1203 return 0; 1343 return 0;
1204} 1344}
1205 1345
1346static void
1347api_trace (SV *coro_sv, int flags)
1348{
1349 dTHX;
1350 struct coro *coro = SvSTATE (coro_sv);
1351
1352 if (flags & CC_TRACE)
1353 {
1354 if (!coro->cctx)
1355 coro->cctx = cctx_new ();
1356 else if (!(coro->cctx->flags & CC_TRACE))
1357 croak ("cannot enable tracing on coroutine with custom stack");
1358
1359 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1360 }
1361 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1362 {
1363 coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
1364
1365 if (coro->flags & CF_RUNNING)
1366 PL_runops = RUNOPS_DEFAULT;
1367 else
1368 coro->runops = RUNOPS_DEFAULT;
1369 }
1370}
1371
1206MODULE = Coro::State PACKAGE = Coro::State 1372MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1207 1373
1208PROTOTYPES: DISABLE 1374PROTOTYPES: DISABLE
1209 1375
1210BOOT: 1376BOOT:
1211{ 1377{
1212#ifdef USE_ITHREADS 1378#ifdef USE_ITHREADS
1213 MUTEX_INIT (&coro_mutex); 1379 MUTEX_INIT (&coro_mutex);
1214#endif 1380#endif
1215 BOOT_PAGESIZE; 1381 BOOT_PAGESIZE;
1216 1382
1383 irsgv = gv_fetchpv ("/", 1, SVt_PV);
1384
1217 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 1385 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1218 1386
1219 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); 1387 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1220 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); 1388 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1221 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1222 newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1223 newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1224 newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF)); 1389 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1225 newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); 1390 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1226 1391
1227 main_mainstack = PL_mainstack; 1392 main_mainstack = PL_mainstack;
1228 main_top_env = PL_top_env; 1393 main_top_env = PL_top_env;
1229 1394
1230 while (main_top_env->je_prev) 1395 while (main_top_env->je_prev)
… …
1243 struct coro *coro; 1408 struct coro *coro;
1244 HV *hv; 1409 HV *hv;
1245 int i; 1410 int i;
1246 1411
1247 Newz (0, coro, 1, struct coro); 1412 Newz (0, coro, 1, struct coro);
1248 coro->args = newAV (); 1413 coro->args = newAV ();
1249 coro->save = CORO_SAVE_DEF;
1250 coro->flags = CF_NEW; 1414 coro->flags = CF_NEW;
1251 1415
1252 if (coro_first) coro_first->prev = coro; 1416 if (coro_first) coro_first->prev = coro;
1253 coro->next = coro_first; 1417 coro->next = coro_first;
1254 coro_first = coro; 1418 coro_first = coro;
… …
1261 av_push (coro->args, newSVsv (ST (i))); 1425 av_push (coro->args, newSVsv (ST (i)));
1262} 1426}
1263 OUTPUT: 1427 OUTPUT:
1264 RETVAL 1428 RETVAL
1265 1429
1266int 1430# these not obviously related functions are all rolled into the same xs
1267save (SV *coro, int new_save = -1) 1431# function to increase chances that they all will call transfer with the same
1268 CODE: 1432# stack offset
1269 RETVAL = api_save (coro, new_save);
1270 OUTPUT:
1271 RETVAL
1272
1273int
1274save_also (SV *coro_sv, int save_also)
1275 CODE:
1276{
1277 struct coro *coro = SvSTATE (coro_sv);
1278 RETVAL = coro->save;
1279 coro->save |= save_also;
1280}
1281 OUTPUT:
1282 RETVAL
1283
1284void 1433void
1285_set_stacklevel (...) 1434_set_stacklevel (...)
1286 ALIAS: 1435 ALIAS:
1287 Coro::State::transfer = 1 1436 Coro::State::transfer = 1
1288 Coro::schedule = 2 1437 Coro::schedule = 2
… …
1374 if (coro->hv) 1523 if (coro->hv)
1375 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 1524 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
1376} 1525}
1377 1526
1378void 1527void
1379_eval (Coro::State coro, SV *coderef) 1528call (Coro::State coro, SV *coderef)
1529 ALIAS:
1530 eval = 1
1380 CODE: 1531 CODE:
1381{ 1532{
1382 if (coro->mainstack) 1533 if (coro->mainstack)
1383 { 1534 {
1384 struct coro temp; 1535 struct coro temp;
1385 Zero (&temp, 1, struct coro); 1536 Zero (&temp, 1, struct coro);
1386 temp.save = CORO_SAVE_ALL;
1387 1537
1388 if (!(coro->flags & CF_RUNNING)) 1538 if (!(coro->flags & CF_RUNNING))
1389 { 1539 {
1390 save_perl (aTHX_ &temp); 1540 save_perl (aTHX_ &temp);
1391 load_perl (aTHX_ coro); 1541 load_perl (aTHX_ coro);
… …
1395 dSP; 1545 dSP;
1396 ENTER; 1546 ENTER;
1397 SAVETMPS; 1547 SAVETMPS;
1398 PUSHMARK (SP); 1548 PUSHMARK (SP);
1399 PUTBACK; 1549 PUTBACK;
1550 if (ix)
1551 eval_sv (coderef, 0);
1552 else
1400 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1553 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1401 SPAGAIN; 1554 SPAGAIN;
1402 FREETMPS; 1555 FREETMPS;
1403 LEAVE; 1556 LEAVE;
1404 PUTBACK; 1557 PUTBACK;
1405 } 1558 }
… …
1409 save_perl (aTHX_ coro); 1562 save_perl (aTHX_ coro);
1410 load_perl (aTHX_ &temp); 1563 load_perl (aTHX_ &temp);
1411 } 1564 }
1412 } 1565 }
1413} 1566}
1414 1567
1415SV * 1568SV *
1416is_ready (Coro::State coro) 1569is_ready (Coro::State coro)
1417 PROTOTYPE: $ 1570 PROTOTYPE: $
1418 ALIAS: 1571 ALIAS:
1419 is_ready = CF_READY 1572 is_ready = CF_READY
… …
1423 CODE: 1576 CODE:
1424 RETVAL = boolSV (coro->flags & ix); 1577 RETVAL = boolSV (coro->flags & ix);
1425 OUTPUT: 1578 OUTPUT:
1426 RETVAL 1579 RETVAL
1427 1580
1581void
1582api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1583
1584SV *
1585has_stack (Coro::State coro)
1586 PROTOTYPE: $
1587 CODE:
1588 RETVAL = boolSV (!!coro->cctx);
1589 OUTPUT:
1590 RETVAL
1591
1592int
1593is_traced (Coro::State coro)
1594 PROTOTYPE: $
1595 CODE:
1596 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1597 OUTPUT:
1598 RETVAL
1599
1428IV 1600IV
1429rss (Coro::State coro) 1601rss (Coro::State coro)
1430 PROTOTYPE: $ 1602 PROTOTYPE: $
1603 ALIAS:
1604 usecount = 1
1431 CODE: 1605 CODE:
1432 RETVAL = coro_rss (coro); 1606 switch (ix)
1607 {
1608 case 0: RETVAL = coro_rss (aTHX_ coro); break;
1609 case 1: RETVAL = coro->usecount; break;
1610 }
1433 OUTPUT: 1611 OUTPUT:
1434 RETVAL 1612 RETVAL
1435 1613
1436 1614
1437MODULE = Coro::State PACKAGE = Coro 1615MODULE = Coro::State PACKAGE = Coro
1438 1616
1439BOOT: 1617BOOT:
1440{ 1618{
1441 int i; 1619 int i;
1620
1621 sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
1622 sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
1623 av_async_pool = get_av ("Coro::async_pool", TRUE);
1624
1625 coro_current = get_sv ("Coro::current", FALSE);
1626 SvREADONLY_on (coro_current);
1442 1627
1443 coro_stash = gv_stashpv ("Coro", TRUE); 1628 coro_stash = gv_stashpv ("Coro", TRUE);
1444 1629
1445 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 1630 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1446 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 1631 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1447 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 1632 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1448 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 1633 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1449 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 1634 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1450 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 1635 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1451 1636
1452 coro_current = get_sv ("Coro::current", FALSE);
1453 SvREADONLY_on (coro_current);
1454
1455 for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) 1637 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1456 coro_ready[i] = newAV (); 1638 coro_ready[i] = newAV ();
1457 1639
1458 { 1640 {
1459 SV *sv = perl_get_sv("Coro::API", 1); 1641 SV *sv = perl_get_sv("Coro::API", 1);
1460 1642
1461 coroapi.schedule = api_schedule; 1643 coroapi.schedule = api_schedule;
1462 coroapi.save = api_save;
1463 coroapi.cede = api_cede; 1644 coroapi.cede = api_cede;
1464 coroapi.cede_notself = api_cede_notself; 1645 coroapi.cede_notself = api_cede_notself;
1465 coroapi.ready = api_ready; 1646 coroapi.ready = api_ready;
1466 coroapi.is_ready = api_is_ready; 1647 coroapi.is_ready = api_is_ready;
1467 coroapi.nready = &coro_nready; 1648 coroapi.nready = &coro_nready;
… …
1516 CODE: 1697 CODE:
1517 RETVAL = coro_nready; 1698 RETVAL = coro_nready;
1518 OUTPUT: 1699 OUTPUT:
1519 RETVAL 1700 RETVAL
1520 1701
1702# for async_pool speedup
1703void
1704_pool_1 (SV *cb)
1705 CODE:
1706{
1707 struct coro *coro = SvSTATE (coro_current);
1708 HV *hv = (HV *)SvRV (coro_current);
1709 AV *defav = GvAV (PL_defgv);
1710 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1711 AV *invoke_av;
1712 int i, len;
1713
1714 if (!invoke)
1715 croak ("\3terminate\2\n");
1716
1717 SvREFCNT_dec (coro->saved_deffh);
1718 coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1719
1720 hv_store (hv, "desc", sizeof ("desc") - 1,
1721 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1722
1723 invoke_av = (AV *)SvRV (invoke);
1724 len = av_len (invoke_av);
1725
1726 sv_setsv (cb, AvARRAY (invoke_av)[0]);
1727
1728 if (len > 0)
1729 {
1730 av_fill (defav, len - 1);
1731 for (i = 0; i < len; ++i)
1732 av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
1733 }
1734
1735 SvREFCNT_dec (invoke);
1736}
1737
1738void
1739_pool_2 (SV *cb)
1740 CODE:
1741{
1742 struct coro *coro = SvSTATE (coro_current);
1743
1744 sv_setsv (cb, &PL_sv_undef);
1745
1746 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1747 coro->saved_deffh = 0;
1748
1749 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1750 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1751 croak ("\3terminate\2\n");
1752
1753 av_clear (GvAV (PL_defgv));
1754 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1755 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1756
1757 coro->prio = 0;
1758
1759 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1760 api_trace (coro_current, 0);
1761
1762 av_push (av_async_pool, newSVsv (coro_current));
1763}
1764
1765
1521MODULE = Coro::State PACKAGE = Coro::AIO 1766MODULE = Coro::State PACKAGE = Coro::AIO
1522 1767
1523SV * 1768SV *
1524_get_state () 1769_get_state ()
1525 CODE: 1770 CODE:

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