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Comparing Coro/Coro/State.xs (file contents):
Revision 1.168 by root, Thu Sep 27 16:10:48 2007 UTC vs.
Revision 1.180 by root, Wed Oct 3 17:12:20 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
137/* async_pool helper stuff */ 139/* async_pool helper stuff */
138static SV *sv_pool_rss; 140static SV *sv_pool_rss;
139static SV *sv_pool_size; 141static SV *sv_pool_size;
140static AV *av_async_pool; 142static AV *av_async_pool;
141 143
… …
184 coro_cctx *cctx; 186 coro_cctx *cctx;
185 187
186 /* data associated with this coroutine (initial args) */ 188 /* data associated with this coroutine (initial args) */
187 AV *args; 189 AV *args;
188 int refcnt; 190 int refcnt;
189 int save; /* CORO_SAVE flags */
190 int flags; /* CF_ flags */ 191 int flags; /* CF_ flags */
191 192
192 /* optionally saved, might be zero */ 193 /* optionally saved, might be zero */
193 AV *defav; /* @_ */ 194 AV *defav; /* @_ */
194 SV *defsv; /* $_ */ 195 SV *defsv; /* $_ */
195 SV *errsv; /* $@ */ 196 SV *errsv; /* $@ */
196 GV *deffh; /* default filehandle */ 197 IO *deffh; /* default filehandle */
197 SV *irssv; /* $/ */ 198 SV *irssv; /* $/ */
198 SV *irssv_sv; /* real $/ cache */ 199 SV *irssv_sv; /* real $/ cache */
199 200
200#define VAR(name,type) type name; 201#define VAR(name,type) type name;
201# include "state.h" 202# include "state.h"
202#undef VAR 203#undef VAR
204
205 /* statistics */
206 int usecount; /* number of switches to this coro */
203 207
204 /* coro process data */ 208 /* coro process data */
205 int prio; 209 int prio;
206 210
207 /* linked list */ 211 /* linked list */
… …
298 SvMAGIC (cv) \ 302 SvMAGIC (cv) \
299 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ 303 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
300 ? SvMAGIC (cv) \ 304 ? SvMAGIC (cv) \
301 : mg_find ((SV *)cv, PERL_MAGIC_coro) \ 305 : mg_find ((SV *)cv, PERL_MAGIC_coro) \
302 : 0 306 : 0
307
308static struct coro *
309SvSTATE_ (pTHX_ SV *coro)
310{
311 HV *stash;
312 MAGIC *mg;
313
314 if (SvROK (coro))
315 coro = SvRV (coro);
316
317 if (SvTYPE (coro) != SVt_PVHV)
318 croak ("Coro::State object required");
319
320 stash = SvSTASH (coro);
321 if (stash != coro_stash && stash != coro_state_stash)
322 {
323 /* very slow, but rare, check */
324 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
325 croak ("Coro::State object required");
326 }
327
328 mg = CORO_MAGIC (coro);
329 return (struct coro *)mg->mg_ptr;
330}
331
332#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
303 333
304/* the next two functions merely cache the padlists */ 334/* the next two functions merely cache the padlists */
305static void 335static void
306get_padlist (pTHX_ CV *cv) 336get_padlist (pTHX_ CV *cv)
307{ 337{
… …
346 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 376 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
347} 377}
348 378
349/** load & save, init *******************************************************/ 379/** load & save, init *******************************************************/
350 380
351#define SB do {
352#define SE } while (0)
353
354#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
355
356static void 381static void
357load_perl (pTHX_ Coro__State c) 382load_perl (pTHX_ Coro__State c)
358{ 383{
359#define VAR(name,type) PL_ ## name = c->name; 384#define VAR(name,type) PL_ ## name = c->name;
360# include "state.h" 385# include "state.h"
361#undef VAR 386#undef VAR
362 387
363 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 388 GvSV (PL_defgv) = c->defsv;
364 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 389 GvAV (PL_defgv) = c->defav;
365 if (c->errsv) REPLACE_SV (ERRSV , c->errsv); 390 GvSV (PL_errgv) = c->errsv;
366 if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh); 391 PL_defoutgv = c->deffh;
367 392 PL_rs = c->irssv;
368 if (c->irssv) 393 GvSV (irsgv) = c->irssv_sv;
369 {
370 if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv))
371 {
372 SvREFCNT_dec (c->irssv);
373 c->irssv = 0;
374 }
375 else
376 {
377 REPLACE_SV (PL_rs, c->irssv);
378 if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
379 sv_setsv (c->irssv_sv, PL_rs);
380 }
381 }
382 394
383 { 395 {
384 dSP; 396 dSP;
385 CV *cv; 397 CV *cv;
386 398
… …
444 } 456 }
445 457
446 PUTBACK; 458 PUTBACK;
447 } 459 }
448 460
449 c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; 461 c->defav = GvAV (PL_defgv);
450 c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; 462 c->defsv = DEFSV;
451 c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; 463 c->errsv = ERRSV;
452 c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0; 464 c->deffh = PL_defoutgv;
453 c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; 465 c->irssv = PL_rs;
466 c->irssv_sv = GvSV (irsgv);
454 467
455#define VAR(name,type)c->name = PL_ ## name; 468#define VAR(name,type)c->name = PL_ ## name;
456# include "state.h" 469# include "state.h"
457#undef VAR 470#undef VAR
458} 471}
… …
511 * destroy the stacks, the callchain etc... 524 * destroy the stacks, the callchain etc...
512 */ 525 */
513static void 526static void
514coro_destroy_stacks (pTHX) 527coro_destroy_stacks (pTHX)
515{ 528{
516 if (!IN_DESTRUCT)
517 {
518 /* restore all saved variables and stuff */
519 LEAVE_SCOPE (0);
520 assert (PL_tmps_floor == -1);
521
522 /* free all temporaries */
523 FREETMPS;
524 assert (PL_tmps_ix == -1);
525
526 /* unwind all extra stacks */
527 POPSTACK_TO (PL_mainstack);
528
529 /* unwind main stack */
530 dounwind (-1);
531 }
532
533 while (PL_curstackinfo->si_next) 529 while (PL_curstackinfo->si_next)
534 PL_curstackinfo = PL_curstackinfo->si_next; 530 PL_curstackinfo = PL_curstackinfo->si_next;
535 531
536 while (PL_curstackinfo) 532 while (PL_curstackinfo)
537 { 533 {
… …
553 Safefree (PL_retstack); 549 Safefree (PL_retstack);
554#endif 550#endif
555} 551}
556 552
557static size_t 553static size_t
558coro_rss (struct coro *coro) 554coro_rss (pTHX_ struct coro *coro)
559{ 555{
560 size_t rss = sizeof (coro); 556 size_t rss = sizeof (coro);
561 557
562 if (coro->mainstack) 558 if (coro->mainstack)
563 { 559 {
… …
586} 582}
587 583
588/** coroutine stack handling ************************************************/ 584/** coroutine stack handling ************************************************/
589 585
590static void 586static void
591setup_coro (pTHX_ struct coro *coro) 587coro_setup (pTHX_ struct coro *coro)
592{ 588{
593 /* 589 /*
594 * emulate part of the perl startup here. 590 * emulate part of the perl startup here.
595 */ 591 */
596 coro_init_stacks (aTHX); 592 coro_init_stacks (aTHX);
597 593
594 PL_runops = RUNOPS_DEFAULT;
598 PL_curcop = &PL_compiling; 595 PL_curcop = &PL_compiling;
599 PL_in_eval = EVAL_NULL; 596 PL_in_eval = EVAL_NULL;
600 PL_comppad = 0; 597 PL_comppad = 0;
601 PL_curpm = 0; 598 PL_curpm = 0;
602 PL_localizing = 0; 599 PL_localizing = 0;
603 PL_dirty = 0; 600 PL_dirty = 0;
604 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 {
610 IO *io = newIO ();
611 PL_defoutgv = newGVgen ("Coro");
612 GvIOp(PL_defoutgv) = io;
613 IoTYPE (io) = IoTYPE_WRONLY;
614 IoOFP (io) = IoIFP (io) = PerlIO_stdout ();
615 IoFLAGS (io) |= IOf_FLUSH;
616 }
605 617
606 { 618 {
607 dSP; 619 dSP;
608 LOGOP myop; 620 LOGOP myop;
609
610 SvREFCNT_dec (GvAV (PL_defgv));
611 GvAV (PL_defgv) = coro->args; coro->args = 0;
612 621
613 Zero (&myop, 1, LOGOP); 622 Zero (&myop, 1, LOGOP);
614 myop.op_next = Nullop; 623 myop.op_next = Nullop;
615 myop.op_flags = OPf_WANT_VOID; 624 myop.op_flags = OPf_WANT_VOID;
616 625
… …
624 633
625 ENTER; /* necessary e.g. for dounwind */ 634 ENTER; /* necessary e.g. for dounwind */
626} 635}
627 636
628static void 637static void
638coro_destroy (pTHX_ struct coro *coro)
639{
640 if (!IN_DESTRUCT)
641 {
642 /* restore all saved variables and stuff */
643 LEAVE_SCOPE (0);
644 assert (PL_tmps_floor == -1);
645
646 /* free all temporaries */
647 FREETMPS;
648 assert (PL_tmps_ix == -1);
649
650 /* unwind all extra stacks */
651 POPSTACK_TO (PL_mainstack);
652
653 /* unwind main stack */
654 dounwind (-1);
655 }
656
657 SvREFCNT_dec (GvSV (PL_defgv));
658 SvREFCNT_dec (GvAV (PL_defgv));
659 SvREFCNT_dec (GvSV (PL_errgv));
660 SvREFCNT_dec (PL_defoutgv);
661 SvREFCNT_dec (PL_rs);
662 SvREFCNT_dec (GvSV (irsgv));
663
664 coro_destroy_stacks (aTHX);
665}
666
667static void
629free_coro_mortal (pTHX) 668free_coro_mortal (pTHX)
630{ 669{
631 if (coro_mortal) 670 if (coro_mortal)
632 { 671 {
633 SvREFCNT_dec (coro_mortal); 672 SvREFCNT_dec (coro_mortal);
634 coro_mortal = 0; 673 coro_mortal = 0;
635 } 674 }
636} 675}
637 676
638static int 677static int
639runops_coro (pTHX) 678runops_trace (pTHX)
640{ 679{
641 COP *oldcop = 0; 680 COP *oldcop = 0;
642 int oldcxix = -2; 681 int oldcxix = -2;
682 struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */
683 coro_cctx *cctx = coro->cctx;
643 684
644 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 685 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
645 { 686 {
646 PERL_ASYNC_CHECK (); 687 PERL_ASYNC_CHECK ();
647 688
648 if (PL_op->op_type == OP_LEAVESUB) 689 if (cctx->flags & CC_TRACE_ALL)
649 { 690 {
650 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 691 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
651 SV **bot, **top;
652 AV *av = newAV (); /* return values */
653 runops_proc_t old_runops = PL_runops;
654 dSP;
655 ENTER;
656 SAVETMPS;
657 EXTEND (SP, 3);
658 PL_runops = RUNOPS_DEFAULT;
659
660 GV *gv = CvGV (cx->blk_sub.cv);
661 SV *fullname = sv_2mortal (newSV (0));
662 if (isGV (gv))
663 gv_efullname3 (fullname, gv, 0);
664
665 bot = PL_stack_base + cx->blk_oldsp + 1;
666 top = cx->blk_gimme == G_ARRAY ? SP + 1
667 : cx->blk_gimme == G_SCALAR ? bot + 1
668 : bot;
669
670 while (bot < top)
671 av_push (av, SvREFCNT_inc (*bot++));
672
673 PUSHMARK (SP);
674 PUSHs (&PL_sv_no);
675 PUSHs (fullname);
676 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
677 PUTBACK;
678 call_pv ("Coro::_do_trace_sub", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
679 SPAGAIN;
680
681 FREETMPS;
682 LEAVE;
683 PL_runops = old_runops;
684 }
685
686 if (oldcop != PL_curcop)
687 {
688 oldcop = PL_curcop;
689
690 if (PL_curcop != &PL_compiling)
691 { 692 {
692 runops_proc_t old_runops = PL_runops; 693 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
694 SV **bot, **top;
695 AV *av = newAV (); /* return values */
696 SV **cb;
693 dSP; 697 dSP;
698
699 GV *gv = CvGV (cx->blk_sub.cv);
700 SV *fullname = sv_2mortal (newSV (0));
701 if (isGV (gv))
702 gv_efullname3 (fullname, gv, 0);
703
704 bot = PL_stack_base + cx->blk_oldsp + 1;
705 top = cx->blk_gimme == G_ARRAY ? SP + 1
706 : cx->blk_gimme == G_SCALAR ? bot + 1
707 : bot;
708
709 while (bot < top)
710 av_push (av, SvREFCNT_inc (*bot++));
711
712 PL_runops = RUNOPS_DEFAULT;
694 ENTER; 713 ENTER;
695 SAVETMPS; 714 SAVETMPS;
696 EXTEND (SP, 3); 715 EXTEND (SP, 3);
697 PL_runops = RUNOPS_DEFAULT;
698
699 if (oldcxix != cxstack_ix)
700 {
701 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
702
703 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
704 {
705 GV *gv = CvGV (cx->blk_sub.cv);
706 SV *fullname = sv_2mortal (newSV (0));
707 if (isGV (gv))
708 gv_efullname3 (fullname, gv, 0);
709
710 PUSHMARK (SP);
711 PUSHs (&PL_sv_yes);
712 PUSHs (fullname);
713 PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
714 PUTBACK;
715 call_pv ("Coro::_do_trace_sub", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
716 SPAGAIN;
717 }
718
719 oldcxix = cxstack_ix;
720 }
721
722 if (0) {
723 PUSHMARK (SP); 716 PUSHMARK (SP);
724 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); 717 PUSHs (&PL_sv_no);
725 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); 718 PUSHs (fullname);
719 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
726 PUTBACK; 720 PUTBACK;
721 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
727 call_pv ("Coro::_do_trace_line", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 722 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
728 SPAGAIN; 723 SPAGAIN;
729 }
730
731 FREETMPS; 724 FREETMPS;
732 LEAVE; 725 LEAVE;
733 PL_runops = old_runops; 726 PL_runops = runops_trace;
727 }
728
729 if (oldcop != PL_curcop)
730 {
731 oldcop = PL_curcop;
732
733 if (PL_curcop != &PL_compiling)
734 {
735 SV **cb;
736
737 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
738 {
739 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
740
741 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
742 {
743 runops_proc_t old_runops = PL_runops;
744 dSP;
745 GV *gv = CvGV (cx->blk_sub.cv);
746 SV *fullname = sv_2mortal (newSV (0));
747
748 if (isGV (gv))
749 gv_efullname3 (fullname, gv, 0);
750
751 PL_runops = RUNOPS_DEFAULT;
752 ENTER;
753 SAVETMPS;
754 EXTEND (SP, 3);
755 PUSHMARK (SP);
756 PUSHs (&PL_sv_yes);
757 PUSHs (fullname);
758 PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
759 PUTBACK;
760 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
761 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
762 SPAGAIN;
763 FREETMPS;
764 LEAVE;
765 PL_runops = runops_trace;
766 }
767
768 oldcxix = cxstack_ix;
769 }
770
771 if (cctx->flags & CC_TRACE_LINE)
772 {
773 dSP;
774
775 PL_runops = RUNOPS_DEFAULT;
776 ENTER;
777 SAVETMPS;
778 EXTEND (SP, 3);
779 PL_runops = RUNOPS_DEFAULT;
780 PUSHMARK (SP);
781 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
782 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
783 PUTBACK;
784 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
785 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
786 SPAGAIN;
787 FREETMPS;
788 LEAVE;
789 PL_runops = runops_trace;
790 }
791 }
734 } 792 }
735 } 793 }
736 } 794 }
737 795
738 TAINT_NOT; 796 TAINT_NOT;
… …
749 LOGOP myop; 807 LOGOP myop;
750 808
751 PL_top_env = &PL_start_env; 809 PL_top_env = &PL_start_env;
752 810
753 if (cctx->flags & CC_TRACE) 811 if (cctx->flags & CC_TRACE)
754 PL_runops = runops_coro; 812 PL_runops = runops_trace;
755 813
756 Zero (&myop, 1, LOGOP); 814 Zero (&myop, 1, LOGOP);
757 myop.op_next = PL_op; 815 myop.op_next = PL_op;
758 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 816 myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
759 817
… …
905 cctx_first = cctx; 963 cctx_first = cctx;
906} 964}
907 965
908/** coroutine switching *****************************************************/ 966/** coroutine switching *****************************************************/
909 967
910/* never call directly, always through the coro_state_transfer global variable */ 968static void NOINLINE
969transfer_check (pTHX_ struct coro *prev, struct coro *next)
970{
971 if (prev != next)
972 {
973 if (!(prev->flags & (CF_RUNNING | CF_NEW)))
974 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
975
976 if (next->flags & CF_RUNNING)
977 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
978
979 if (next->flags & CF_DESTROYED)
980 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
981
982 if (PL_lex_state != LEX_NOTPARSING)
983 croak ("Coro::State::transfer called while parsing, but this is not supported");
984 }
985}
986
987/* always use the TRANSFER macro */
911static void NOINLINE 988static void NOINLINE
912transfer (pTHX_ struct coro *prev, struct coro *next) 989transfer (pTHX_ struct coro *prev, struct coro *next)
913{ 990{
914 dSTACKLEVEL; 991 dSTACKLEVEL;
915 992
… …
929 Newz (0, prev->cctx, 1, coro_cctx); 1006 Newz (0, prev->cctx, 1, coro_cctx);
930 prev->flags &= ~CF_NEW; 1007 prev->flags &= ~CF_NEW;
931 prev->flags |= CF_RUNNING; 1008 prev->flags |= CF_RUNNING;
932 } 1009 }
933 1010
934 /*TODO: must not croak here */
935 if (!prev->flags & CF_RUNNING)
936 croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
937
938 if (next->flags & CF_RUNNING)
939 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
940
941 if (next->flags & CF_DESTROYED)
942 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
943
944 prev->flags &= ~CF_RUNNING; 1011 prev->flags &= ~CF_RUNNING;
945 next->flags |= CF_RUNNING; 1012 next->flags |= CF_RUNNING;
946 1013
947 LOCK; 1014 LOCK;
948 1015
… …
951 /* need to start coroutine */ 1018 /* need to start coroutine */
952 next->flags &= ~CF_NEW; 1019 next->flags &= ~CF_NEW;
953 /* first get rid of the old state */ 1020 /* first get rid of the old state */
954 save_perl (aTHX_ prev); 1021 save_perl (aTHX_ prev);
955 /* setup coroutine call */ 1022 /* setup coroutine call */
956 setup_coro (aTHX_ next); 1023 coro_setup (aTHX_ next);
957 } 1024 }
958 else 1025 else
959 { 1026 {
960 /* coroutine already started */ 1027 /* coroutine already started */
961 save_perl (aTHX_ prev); 1028 save_perl (aTHX_ prev);
… …
973 prev->cctx = 0; 1040 prev->cctx = 0;
974 1041
975 cctx_put (prev__cctx); 1042 cctx_put (prev__cctx);
976 } 1043 }
977 1044
1045 ++next->usecount;
1046
978 if (!next->cctx) 1047 if (!next->cctx)
979 next->cctx = cctx_get (aTHX); 1048 next->cctx = cctx_get (aTHX);
980 1049
981 if (prev__cctx != next->cctx) 1050 if (prev__cctx != next->cctx)
982 { 1051 {
… …
994{ 1063{
995 struct coro *prev, *next; 1064 struct coro *prev, *next;
996}; 1065};
997 1066
998#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) 1067#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
1068#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
999 1069
1000/** high level stuff ********************************************************/ 1070/** high level stuff ********************************************************/
1001 1071
1002static int 1072static int
1003coro_state_destroy (pTHX_ struct coro *coro) 1073coro_state_destroy (pTHX_ struct coro *coro)
… …
1020 1090
1021 if (coro->mainstack && coro->mainstack != main_mainstack) 1091 if (coro->mainstack && coro->mainstack != main_mainstack)
1022 { 1092 {
1023 struct coro temp; 1093 struct coro temp;
1024 1094
1025 assert (!(coro->flags & CF_RUNNING));
1026
1027 Zero (&temp, 1, struct coro);
1028 temp.save = CORO_SAVE_ALL;
1029
1030 if (coro->flags & CF_RUNNING) 1095 if (coro->flags & CF_RUNNING)
1031 croak ("FATAL: tried to destroy currently running coroutine"); 1096 croak ("FATAL: tried to destroy currently running coroutine");
1032 1097
1033 save_perl (aTHX_ &temp); 1098 save_perl (aTHX_ &temp);
1034 load_perl (aTHX_ coro); 1099 load_perl (aTHX_ coro);
1035 1100
1036 coro_destroy_stacks (aTHX); 1101 coro_destroy (aTHX_ coro);
1037 1102
1038 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ 1103 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
1039 1104
1040 coro->mainstack = 0; 1105 coro->mainstack = 0;
1041 } 1106 }
… …
1086#else 1151#else
1087# define MGf_DUP 0 1152# define MGf_DUP 0
1088#endif 1153#endif
1089}; 1154};
1090 1155
1091static struct coro *
1092SvSTATE_ (pTHX_ SV *coro)
1093{
1094 HV *stash;
1095 MAGIC *mg;
1096
1097 if (SvROK (coro))
1098 coro = SvRV (coro);
1099
1100 stash = SvSTASH (coro);
1101 if (stash != coro_stash && stash != coro_state_stash)
1102 {
1103 /* very slow, but rare, check */
1104 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
1105 croak ("Coro::State object required");
1106 }
1107
1108 mg = CORO_MAGIC (coro);
1109 return (struct coro *)mg->mg_ptr;
1110}
1111
1112#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
1113
1114static void 1156static void
1115prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) 1157prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv)
1116{ 1158{
1117 ta->prev = SvSTATE (prev_sv); 1159 ta->prev = SvSTATE (prev_sv);
1118 ta->next = SvSTATE (next_sv); 1160 ta->next = SvSTATE (next_sv);
1161 TRANSFER_CHECK (*ta);
1119} 1162}
1120 1163
1121static void 1164static void
1122api_transfer (SV *prev_sv, SV *next_sv) 1165api_transfer (SV *prev_sv, SV *next_sv)
1123{ 1166{
1124 dTHX; 1167 dTHX;
1125 struct transfer_args ta; 1168 struct transfer_args ta;
1126 1169
1127 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1170 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1128 TRANSFER (ta); 1171 TRANSFER (ta);
1129}
1130
1131static int
1132api_save (SV *coro_sv, int new_save)
1133{
1134 dTHX;
1135 struct coro *coro = SvSTATE (coro_sv);
1136 int old_save = coro->save;
1137
1138 if (new_save >= 0)
1139 coro->save = new_save;
1140
1141 return old_save;
1142} 1172}
1143 1173
1144/** Coro ********************************************************************/ 1174/** Coro ********************************************************************/
1145 1175
1146static void 1176static void
… …
1240 break; 1270 break;
1241 } 1271 }
1242 1272
1243 /* free this only after the transfer */ 1273 /* free this only after the transfer */
1244 prev_sv = SvRV (coro_current); 1274 prev_sv = SvRV (coro_current);
1245 SvRV_set (coro_current, next_sv);
1246 ta->prev = SvSTATE (prev_sv); 1275 ta->prev = SvSTATE (prev_sv);
1247 1276 TRANSFER_CHECK (*ta);
1248 assert (ta->next->flags & CF_READY); 1277 assert (ta->next->flags & CF_READY);
1249 ta->next->flags &= ~CF_READY; 1278 ta->next->flags &= ~CF_READY;
1279 SvRV_set (coro_current, next_sv);
1250 1280
1251 LOCK; 1281 LOCK;
1252 free_coro_mortal (aTHX); 1282 free_coro_mortal (aTHX);
1253 coro_mortal = prev_sv; 1283 coro_mortal = prev_sv;
1254 UNLOCK; 1284 UNLOCK;
… …
1315 } 1345 }
1316 else 1346 else
1317 return 0; 1347 return 0;
1318} 1348}
1319 1349
1350static void
1351api_trace (SV *coro_sv, int flags)
1352{
1353 dTHX;
1354 struct coro *coro = SvSTATE (coro_sv);
1355
1356 if (flags & CC_TRACE)
1357 {
1358 if (!coro->cctx)
1359 coro->cctx = cctx_new ();
1360 else if (!(coro->cctx->flags & CC_TRACE))
1361 croak ("cannot enable tracing on coroutine with custom stack");
1362
1363 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1364 }
1365 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1366 {
1367 coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
1368
1369 if (coro->flags & CF_RUNNING)
1370 PL_runops = RUNOPS_DEFAULT;
1371 else
1372 coro->runops = RUNOPS_DEFAULT;
1373 }
1374}
1375
1320MODULE = Coro::State PACKAGE = Coro::State 1376MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1321 1377
1322PROTOTYPES: DISABLE 1378PROTOTYPES: DISABLE
1323 1379
1324BOOT: 1380BOOT:
1325{ 1381{
1326#ifdef USE_ITHREADS 1382#ifdef USE_ITHREADS
1327 MUTEX_INIT (&coro_mutex); 1383 MUTEX_INIT (&coro_mutex);
1328#endif 1384#endif
1329 BOOT_PAGESIZE; 1385 BOOT_PAGESIZE;
1386
1387 irsgv = gv_fetchpv ("/", 1, SVt_PV);
1330 1388
1331 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 1389 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1332 1390
1333 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); 1391 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1334 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); 1392 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1335 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); 1393 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1336 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); 1394 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1337 1395
1338 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1339 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1340 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1341 newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1342 newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1343 newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));
1344 newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1345
1346 main_mainstack = PL_mainstack; 1396 main_mainstack = PL_mainstack;
1347 main_top_env = PL_top_env; 1397 main_top_env = PL_top_env;
1348 1398
1349 while (main_top_env->je_prev) 1399 while (main_top_env->je_prev)
1350 main_top_env = main_top_env->je_prev; 1400 main_top_env = main_top_env->je_prev;
… …
1362 struct coro *coro; 1412 struct coro *coro;
1363 HV *hv; 1413 HV *hv;
1364 int i; 1414 int i;
1365 1415
1366 Newz (0, coro, 1, struct coro); 1416 Newz (0, coro, 1, struct coro);
1367 coro->args = newAV (); 1417 coro->args = newAV ();
1368 coro->save = CORO_SAVE_DEF;
1369 coro->flags = CF_NEW; 1418 coro->flags = CF_NEW;
1370 1419
1371 if (coro_first) coro_first->prev = coro; 1420 if (coro_first) coro_first->prev = coro;
1372 coro->next = coro_first; 1421 coro->next = coro_first;
1373 coro_first = coro; 1422 coro_first = coro;
… …
1380 av_push (coro->args, newSVsv (ST (i))); 1429 av_push (coro->args, newSVsv (ST (i)));
1381} 1430}
1382 OUTPUT: 1431 OUTPUT:
1383 RETVAL 1432 RETVAL
1384 1433
1385int 1434# these not obviously related functions are all rolled into the same xs
1386save (SV *coro, int new_save = -1) 1435# function to increase chances that they all will call transfer with the same
1387 CODE: 1436# stack offset
1388 RETVAL = api_save (coro, new_save);
1389 OUTPUT:
1390 RETVAL
1391
1392int
1393save_also (SV *coro_sv, int save_also)
1394 CODE:
1395{
1396 struct coro *coro = SvSTATE (coro_sv);
1397 RETVAL = coro->save;
1398 coro->save |= save_also;
1399}
1400 OUTPUT:
1401 RETVAL
1402
1403void 1437void
1404_set_stacklevel (...) 1438_set_stacklevel (...)
1405 ALIAS: 1439 ALIAS:
1406 Coro::State::transfer = 1 1440 Coro::State::transfer = 1
1407 Coro::schedule = 2 1441 Coro::schedule = 2
… …
1502{ 1536{
1503 if (coro->mainstack) 1537 if (coro->mainstack)
1504 { 1538 {
1505 struct coro temp; 1539 struct coro temp;
1506 Zero (&temp, 1, struct coro); 1540 Zero (&temp, 1, struct coro);
1507 temp.save = CORO_SAVE_ALL;
1508 1541
1509 if (!(coro->flags & CF_RUNNING)) 1542 if (!(coro->flags & CF_RUNNING))
1510 { 1543 {
1511 save_perl (aTHX_ &temp); 1544 save_perl (aTHX_ &temp);
1512 load_perl (aTHX_ coro); 1545 load_perl (aTHX_ coro);
… …
1533 save_perl (aTHX_ coro); 1566 save_perl (aTHX_ coro);
1534 load_perl (aTHX_ &temp); 1567 load_perl (aTHX_ &temp);
1535 } 1568 }
1536 } 1569 }
1537} 1570}
1538 1571
1539SV * 1572SV *
1540is_ready (Coro::State coro) 1573is_ready (Coro::State coro)
1541 PROTOTYPE: $ 1574 PROTOTYPE: $
1542 ALIAS: 1575 ALIAS:
1543 is_ready = CF_READY 1576 is_ready = CF_READY
… …
1548 RETVAL = boolSV (coro->flags & ix); 1581 RETVAL = boolSV (coro->flags & ix);
1549 OUTPUT: 1582 OUTPUT:
1550 RETVAL 1583 RETVAL
1551 1584
1552void 1585void
1553trace (Coro::State coro, int flags = CC_TRACE | CC_TRACE_SUB) 1586api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1554 CODE:
1555 if (flags & CC_TRACE)
1556 {
1557 if (!coro->cctx)
1558 coro->cctx = cctx_new ();
1559 else if (!(coro->cctx->flags & CC_TRACE))
1560 croak ("cannot enable tracing on coroutine with custom stack");
1561
1562 coro->cctx->flags |= flags & (CC_TRACE | CC_TRACE_ALL);
1563 }
1564 else
1565 if (coro->cctx && coro->cctx->flags & CC_TRACE)
1566 {
1567 coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
1568 coro->cctx->flags |= CC_NOREUSE;
1569
1570 if (coro->flags & CF_RUNNING)
1571 PL_runops = RUNOPS_DEFAULT;
1572 else
1573 coro->runops = RUNOPS_DEFAULT;
1574 }
1575 1587
1576SV * 1588SV *
1577has_stack (Coro::State coro) 1589has_stack (Coro::State coro)
1578 PROTOTYPE: $ 1590 PROTOTYPE: $
1579 CODE: 1591 CODE:
… …
1590 RETVAL 1602 RETVAL
1591 1603
1592IV 1604IV
1593rss (Coro::State coro) 1605rss (Coro::State coro)
1594 PROTOTYPE: $ 1606 PROTOTYPE: $
1607 ALIAS:
1608 usecount = 1
1595 CODE: 1609 CODE:
1596 RETVAL = coro_rss (coro); 1610 switch (ix)
1611 {
1612 case 0: RETVAL = coro_rss (aTHX_ coro); break;
1613 case 1: RETVAL = coro->usecount; break;
1614 }
1597 OUTPUT: 1615 OUTPUT:
1598 RETVAL 1616 RETVAL
1599 1617
1600 1618
1601MODULE = Coro::State PACKAGE = Coro 1619MODULE = Coro::State PACKAGE = Coro
… …
1625 1643
1626 { 1644 {
1627 SV *sv = perl_get_sv("Coro::API", 1); 1645 SV *sv = perl_get_sv("Coro::API", 1);
1628 1646
1629 coroapi.schedule = api_schedule; 1647 coroapi.schedule = api_schedule;
1630 coroapi.save = api_save;
1631 coroapi.cede = api_cede; 1648 coroapi.cede = api_cede;
1632 coroapi.cede_notself = api_cede_notself; 1649 coroapi.cede_notself = api_cede_notself;
1633 coroapi.ready = api_ready; 1650 coroapi.ready = api_ready;
1634 coroapi.is_ready = api_is_ready; 1651 coroapi.is_ready = api_is_ready;
1635 coroapi.nready = &coro_nready; 1652 coroapi.nready = &coro_nready;
… …
1724{ 1741{
1725 struct coro *coro = SvSTATE (coro_current); 1742 struct coro *coro = SvSTATE (coro_current);
1726 1743
1727 sv_setsv (cb, &PL_sv_undef); 1744 sv_setsv (cb, &PL_sv_undef);
1728 1745
1729 if (coro_rss (coro) > SvIV (sv_pool_rss) 1746 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1730 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 1747 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1731 croak ("\3terminate\2\n"); 1748 croak ("\3terminate\2\n");
1732 1749
1733 av_clear (GvAV (PL_defgv)); 1750 av_clear (GvAV (PL_defgv));
1734 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, 1751 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1735 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); 1752 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1736 coro->save = CORO_SAVE_DEF; 1753
1737 coro->prio = 0; 1754 coro->prio = 0;
1755
1756 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1757 api_trace (coro_current, 0);
1758
1738 av_push (av_async_pool, newSVsv (coro_current)); 1759 av_push (av_async_pool, newSVsv (coro_current));
1739} 1760}
1740 1761
1741 1762
1742MODULE = Coro::State PACKAGE = Coro::AIO 1763MODULE = Coro::State PACKAGE = Coro::AIO

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