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Comparing Coro/Coro/State.xs (file contents):
Revision 1.169 by root, Thu Sep 27 16:25:10 2007 UTC vs.
Revision 1.178 by root, Wed Oct 3 01:48:06 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 */
… …
307 HV *stash; 311 HV *stash;
308 MAGIC *mg; 312 MAGIC *mg;
309 313
310 if (SvROK (coro)) 314 if (SvROK (coro))
311 coro = SvRV (coro); 315 coro = SvRV (coro);
316
317 if (SvTYPE (coro) != SVt_PVHV)
318 croak ("Coro::State object required");
312 319
313 stash = SvSTASH (coro); 320 stash = SvSTASH (coro);
314 if (stash != coro_stash && stash != coro_state_stash) 321 if (stash != coro_stash && stash != coro_state_stash)
315 { 322 {
316 /* very slow, but rare, check */ 323 /* very slow, but rare, check */
… …
369 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 376 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
370} 377}
371 378
372/** load & save, init *******************************************************/ 379/** load & save, init *******************************************************/
373 380
374#define SB do {
375#define SE } while (0)
376
377#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
378
379static void 381static void
380load_perl (pTHX_ Coro__State c) 382load_perl (pTHX_ Coro__State c)
381{ 383{
382#define VAR(name,type) PL_ ## name = c->name; 384#define VAR(name,type) PL_ ## name = c->name;
383# include "state.h" 385# include "state.h"
384#undef VAR 386#undef VAR
385 387
386 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 388 GvSV (PL_defgv) = c->defsv;
387 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 389 GvAV (PL_defgv) = c->defav;
388 if (c->errsv) REPLACE_SV (ERRSV , c->errsv); 390 GvSV (PL_errgv) = c->errsv;
389 if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh); 391 GvIOp(PL_defoutgv) = c->deffh;
390 392 PL_rs = c->irssv;
391 if (c->irssv) 393 GvSV (irsgv) = c->irssv_sv;
392 {
393 if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv))
394 {
395 SvREFCNT_dec (c->irssv);
396 c->irssv = 0;
397 }
398 else
399 {
400 REPLACE_SV (PL_rs, c->irssv);
401 if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
402 sv_setsv (c->irssv_sv, PL_rs);
403 }
404 }
405 394
406 { 395 {
407 dSP; 396 dSP;
408 CV *cv; 397 CV *cv;
409 398
… …
467 } 456 }
468 457
469 PUTBACK; 458 PUTBACK;
470 } 459 }
471 460
472 c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; 461 c->defav = GvAV (PL_defgv);
473 c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; 462 c->defsv = DEFSV;
474 c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; 463 c->errsv = ERRSV;
475 c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0; 464 c->deffh = GvIOp (PL_defoutgv);
476 c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; 465 c->irssv = PL_rs;
466 c->irssv_sv = GvSV (irsgv);
477 467
478#define VAR(name,type)c->name = PL_ ## name; 468#define VAR(name,type)c->name = PL_ ## name;
479# include "state.h" 469# include "state.h"
480#undef VAR 470#undef VAR
481} 471}
… …
534 * destroy the stacks, the callchain etc... 524 * destroy the stacks, the callchain etc...
535 */ 525 */
536static void 526static void
537coro_destroy_stacks (pTHX) 527coro_destroy_stacks (pTHX)
538{ 528{
539 if (!IN_DESTRUCT)
540 {
541 /* restore all saved variables and stuff */
542 LEAVE_SCOPE (0);
543 assert (PL_tmps_floor == -1);
544
545 /* free all temporaries */
546 FREETMPS;
547 assert (PL_tmps_ix == -1);
548
549 /* unwind all extra stacks */
550 POPSTACK_TO (PL_mainstack);
551
552 /* unwind main stack */
553 dounwind (-1);
554 }
555
556 while (PL_curstackinfo->si_next) 529 while (PL_curstackinfo->si_next)
557 PL_curstackinfo = PL_curstackinfo->si_next; 530 PL_curstackinfo = PL_curstackinfo->si_next;
558 531
559 while (PL_curstackinfo) 532 while (PL_curstackinfo)
560 { 533 {
… …
576 Safefree (PL_retstack); 549 Safefree (PL_retstack);
577#endif 550#endif
578} 551}
579 552
580static size_t 553static size_t
581coro_rss (struct coro *coro) 554coro_rss (pTHX_ struct coro *coro)
582{ 555{
583 size_t rss = sizeof (coro); 556 size_t rss = sizeof (coro);
584 557
585 if (coro->mainstack) 558 if (coro->mainstack)
586 { 559 {
… …
624 PL_comppad = 0; 597 PL_comppad = 0;
625 PL_curpm = 0; 598 PL_curpm = 0;
626 PL_localizing = 0; 599 PL_localizing = 0;
627 PL_dirty = 0; 600 PL_dirty = 0;
628 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) = newSVsv (PL_rs);
607 PL_rs = newSVpvn ("\n", 1);
608
609 {
610 IO *io = newIO ();
611 GvIOp(PL_defoutgv) = io;
612 IoTYPE (io) = IoTYPE_WRONLY;
613 IoOFP (io) = IoIFP (io) = PerlIO_stdout ();
614 IoFLAGS (io) |= IOf_FLUSH;
615 }
629 616
630 { 617 {
631 dSP; 618 dSP;
632 LOGOP myop; 619 LOGOP myop;
633
634 SvREFCNT_dec (GvAV (PL_defgv));
635 GvAV (PL_defgv) = coro->args; coro->args = 0;
636 620
637 Zero (&myop, 1, LOGOP); 621 Zero (&myop, 1, LOGOP);
638 myop.op_next = Nullop; 622 myop.op_next = Nullop;
639 myop.op_flags = OPf_WANT_VOID; 623 myop.op_flags = OPf_WANT_VOID;
640 624
… …
648 632
649 ENTER; /* necessary e.g. for dounwind */ 633 ENTER; /* necessary e.g. for dounwind */
650} 634}
651 635
652static void 636static void
637destroy_coro (pTHX_ struct coro *coro)
638{
639 if (!IN_DESTRUCT)
640 {
641 /* restore all saved variables and stuff */
642 LEAVE_SCOPE (0);
643 assert (PL_tmps_floor == -1);
644
645 /* free all temporaries */
646 FREETMPS;
647 assert (PL_tmps_ix == -1);
648
649 /* unwind all extra stacks */
650 POPSTACK_TO (PL_mainstack);
651
652 /* unwind main stack */
653 dounwind (-1);
654 }
655
656 SvREFCNT_dec (GvSV (PL_defgv));
657 SvREFCNT_dec (GvAV (PL_defgv));
658 SvREFCNT_dec (GvSV (PL_errgv));
659 SvREFCNT_dec (GvIOp(PL_defoutgv));
660 SvREFCNT_dec (PL_rs);
661 SvREFCNT_dec (GvSV (irsgv));
662
663 coro_destroy_stacks (aTHX);
664}
665
666static void
653free_coro_mortal (pTHX) 667free_coro_mortal (pTHX)
654{ 668{
655 if (coro_mortal) 669 if (coro_mortal)
656 { 670 {
657 SvREFCNT_dec (coro_mortal); 671 SvREFCNT_dec (coro_mortal);
… …
669 683
670 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 684 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
671 { 685 {
672 PERL_ASYNC_CHECK (); 686 PERL_ASYNC_CHECK ();
673 687
674 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) 688 if (cctx->flags & CC_TRACE_ALL)
675 { 689 {
676 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 690 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
677 SV **bot, **top;
678 AV *av = newAV (); /* return values */
679 SV **cb;
680 runops_proc_t old_runops = PL_runops;
681 dSP;
682 ENTER;
683 SAVETMPS;
684 EXTEND (SP, 3);
685 PL_runops = RUNOPS_DEFAULT;
686
687 GV *gv = CvGV (cx->blk_sub.cv);
688 SV *fullname = sv_2mortal (newSV (0));
689 if (isGV (gv))
690 gv_efullname3 (fullname, gv, 0);
691
692 bot = PL_stack_base + cx->blk_oldsp + 1;
693 top = cx->blk_gimme == G_ARRAY ? SP + 1
694 : cx->blk_gimme == G_SCALAR ? bot + 1
695 : bot;
696
697 while (bot < top)
698 av_push (av, SvREFCNT_inc (*bot++));
699
700 PUSHMARK (SP);
701 PUSHs (&PL_sv_no);
702 PUSHs (fullname);
703 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
704 PUTBACK;
705 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
706 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
707 SPAGAIN;
708
709 FREETMPS;
710 LEAVE;
711 PL_runops = old_runops;
712 }
713
714 if (oldcop != PL_curcop)
715 {
716 oldcop = PL_curcop;
717
718 if (PL_curcop != &PL_compiling)
719 { 691 {
692 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
693 SV **bot, **top;
694 AV *av = newAV (); /* return values */
720 SV **cb; 695 SV **cb;
721 runops_proc_t old_runops = PL_runops;
722 dSP; 696 dSP;
697
698 GV *gv = CvGV (cx->blk_sub.cv);
699 SV *fullname = sv_2mortal (newSV (0));
700 if (isGV (gv))
701 gv_efullname3 (fullname, gv, 0);
702
703 bot = PL_stack_base + cx->blk_oldsp + 1;
704 top = cx->blk_gimme == G_ARRAY ? SP + 1
705 : cx->blk_gimme == G_SCALAR ? bot + 1
706 : bot;
707
708 while (bot < top)
709 av_push (av, SvREFCNT_inc (*bot++));
710
711 PL_runops = RUNOPS_DEFAULT;
723 ENTER; 712 ENTER;
724 SAVETMPS; 713 SAVETMPS;
725 EXTEND (SP, 3); 714 EXTEND (SP, 3);
726 PL_runops = RUNOPS_DEFAULT; 715 PUSHMARK (SP);
716 PUSHs (&PL_sv_no);
717 PUSHs (fullname);
718 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
719 PUTBACK;
720 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
721 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
722 SPAGAIN;
723 FREETMPS;
724 LEAVE;
725 PL_runops = runops_trace;
726 }
727 727
728 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 728 if (oldcop != PL_curcop)
729 {
730 oldcop = PL_curcop;
731
732 if (PL_curcop != &PL_compiling)
729 { 733 {
730 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 734 SV **cb;
731 735
732 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 736 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
733 { 737 {
738 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
739
740 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
741 {
742 runops_proc_t old_runops = PL_runops;
743 dSP;
734 GV *gv = CvGV (cx->blk_sub.cv); 744 GV *gv = CvGV (cx->blk_sub.cv);
735 SV *fullname = sv_2mortal (newSV (0)); 745 SV *fullname = sv_2mortal (newSV (0));
746
736 if (isGV (gv)) 747 if (isGV (gv))
737 gv_efullname3 (fullname, gv, 0); 748 gv_efullname3 (fullname, gv, 0);
738 749
750 PL_runops = RUNOPS_DEFAULT;
751 ENTER;
752 SAVETMPS;
753 EXTEND (SP, 3);
754 PUSHMARK (SP);
755 PUSHs (&PL_sv_yes);
756 PUSHs (fullname);
757 PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
758 PUTBACK;
759 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
760 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
761 SPAGAIN;
762 FREETMPS;
763 LEAVE;
764 PL_runops = runops_trace;
765 }
766
767 oldcxix = cxstack_ix;
768 }
769
770 if (cctx->flags & CC_TRACE_LINE)
771 {
772 dSP;
773
774 PL_runops = RUNOPS_DEFAULT;
775 ENTER;
776 SAVETMPS;
777 EXTEND (SP, 3);
778 PL_runops = RUNOPS_DEFAULT;
739 PUSHMARK (SP); 779 PUSHMARK (SP);
740 PUSHs (&PL_sv_yes); 780 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
741 PUSHs (fullname); 781 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
742 PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
743 PUTBACK; 782 PUTBACK;
744 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); 783 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
745 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 784 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
746 SPAGAIN; 785 SPAGAIN;
786 FREETMPS;
787 LEAVE;
788 PL_runops = runops_trace;
747 } 789 }
748
749 oldcxix = cxstack_ix;
750 } 790 }
751
752 if (cctx->flags & CC_TRACE_LINE)
753 {
754 PUSHMARK (SP);
755 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
756 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
757 PUTBACK;
758 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
759 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
760 SPAGAIN;
761 }
762
763 FREETMPS;
764 LEAVE;
765 PL_runops = old_runops;
766 } 791 }
767 } 792 }
768 } 793 }
769 794
770 TAINT_NOT; 795 TAINT_NOT;
… …
937 cctx_first = cctx; 962 cctx_first = cctx;
938} 963}
939 964
940/** coroutine switching *****************************************************/ 965/** coroutine switching *****************************************************/
941 966
942/* never call directly, always through the coro_state_transfer global variable */ 967static void NOINLINE
968transfer_check (pTHX_ struct coro *prev, struct coro *next)
969{
970 if (prev != next)
971 {
972 if (!(prev->flags & (CF_RUNNING | CF_NEW)))
973 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
974
975 if (next->flags & CF_RUNNING)
976 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
977
978 if (next->flags & CF_DESTROYED)
979 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
980
981 if (PL_lex_state != LEX_NOTPARSING)
982 croak ("Coro::State::transfer called while parsing, but this is not supported");
983 }
984}
985
986/* always use the TRANSFER macro */
943static void NOINLINE 987static void NOINLINE
944transfer (pTHX_ struct coro *prev, struct coro *next) 988transfer (pTHX_ struct coro *prev, struct coro *next)
945{ 989{
946 dSTACKLEVEL; 990 dSTACKLEVEL;
947 991
… …
960 /* create a new empty context */ 1004 /* create a new empty context */
961 Newz (0, prev->cctx, 1, coro_cctx); 1005 Newz (0, prev->cctx, 1, coro_cctx);
962 prev->flags &= ~CF_NEW; 1006 prev->flags &= ~CF_NEW;
963 prev->flags |= CF_RUNNING; 1007 prev->flags |= CF_RUNNING;
964 } 1008 }
965
966 /*TODO: must not croak here */
967 if (!prev->flags & CF_RUNNING)
968 croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
969
970 if (next->flags & CF_RUNNING)
971 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
972
973 if (next->flags & CF_DESTROYED)
974 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
975 1009
976 prev->flags &= ~CF_RUNNING; 1010 prev->flags &= ~CF_RUNNING;
977 next->flags |= CF_RUNNING; 1011 next->flags |= CF_RUNNING;
978 1012
979 LOCK; 1013 LOCK;
… …
1005 prev->cctx = 0; 1039 prev->cctx = 0;
1006 1040
1007 cctx_put (prev__cctx); 1041 cctx_put (prev__cctx);
1008 } 1042 }
1009 1043
1044 ++next->usecount;
1045
1010 if (!next->cctx) 1046 if (!next->cctx)
1011 next->cctx = cctx_get (aTHX); 1047 next->cctx = cctx_get (aTHX);
1012 1048
1013 if (prev__cctx != next->cctx) 1049 if (prev__cctx != next->cctx)
1014 { 1050 {
… …
1026{ 1062{
1027 struct coro *prev, *next; 1063 struct coro *prev, *next;
1028}; 1064};
1029 1065
1030#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) 1066#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
1067#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1031 1068
1032/** high level stuff ********************************************************/ 1069/** high level stuff ********************************************************/
1033 1070
1034static int 1071static int
1035coro_state_destroy (pTHX_ struct coro *coro) 1072coro_state_destroy (pTHX_ struct coro *coro)
… …
1052 1089
1053 if (coro->mainstack && coro->mainstack != main_mainstack) 1090 if (coro->mainstack && coro->mainstack != main_mainstack)
1054 { 1091 {
1055 struct coro temp; 1092 struct coro temp;
1056 1093
1057 assert (!(coro->flags & CF_RUNNING));
1058
1059 Zero (&temp, 1, struct coro);
1060 temp.save = CORO_SAVE_ALL;
1061
1062 if (coro->flags & CF_RUNNING) 1094 if (coro->flags & CF_RUNNING)
1063 croak ("FATAL: tried to destroy currently running coroutine"); 1095 croak ("FATAL: tried to destroy currently running coroutine");
1064 1096
1065 save_perl (aTHX_ &temp); 1097 save_perl (aTHX_ &temp);
1066 load_perl (aTHX_ coro); 1098 load_perl (aTHX_ coro);
1067 1099
1068 coro_destroy_stacks (aTHX); 1100 destroy_coro (aTHX_ coro);
1069 1101
1070 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ 1102 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
1071 1103
1072 coro->mainstack = 0; 1104 coro->mainstack = 0;
1073 } 1105 }
… …
1123static void 1155static void
1124prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) 1156prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv)
1125{ 1157{
1126 ta->prev = SvSTATE (prev_sv); 1158 ta->prev = SvSTATE (prev_sv);
1127 ta->next = SvSTATE (next_sv); 1159 ta->next = SvSTATE (next_sv);
1160 TRANSFER_CHECK (*ta);
1128} 1161}
1129 1162
1130static void 1163static void
1131api_transfer (SV *prev_sv, SV *next_sv) 1164api_transfer (SV *prev_sv, SV *next_sv)
1132{ 1165{
1133 dTHX; 1166 dTHX;
1134 struct transfer_args ta; 1167 struct transfer_args ta;
1135 1168
1136 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1169 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1137 TRANSFER (ta); 1170 TRANSFER (ta);
1138}
1139
1140static int
1141api_save (SV *coro_sv, int new_save)
1142{
1143 dTHX;
1144 struct coro *coro = SvSTATE (coro_sv);
1145 int old_save = coro->save;
1146
1147 if (new_save >= 0)
1148 coro->save = new_save;
1149
1150 return old_save;
1151} 1171}
1152 1172
1153/** Coro ********************************************************************/ 1173/** Coro ********************************************************************/
1154 1174
1155static void 1175static void
… …
1249 break; 1269 break;
1250 } 1270 }
1251 1271
1252 /* free this only after the transfer */ 1272 /* free this only after the transfer */
1253 prev_sv = SvRV (coro_current); 1273 prev_sv = SvRV (coro_current);
1254 SvRV_set (coro_current, next_sv);
1255 ta->prev = SvSTATE (prev_sv); 1274 ta->prev = SvSTATE (prev_sv);
1256 1275 TRANSFER_CHECK (*ta);
1257 assert (ta->next->flags & CF_READY); 1276 assert (ta->next->flags & CF_READY);
1258 ta->next->flags &= ~CF_READY; 1277 ta->next->flags &= ~CF_READY;
1278 SvRV_set (coro_current, next_sv);
1259 1279
1260 LOCK; 1280 LOCK;
1261 free_coro_mortal (aTHX); 1281 free_coro_mortal (aTHX);
1262 coro_mortal = prev_sv; 1282 coro_mortal = prev_sv;
1263 UNLOCK; 1283 UNLOCK;
… …
1324 } 1344 }
1325 else 1345 else
1326 return 0; 1346 return 0;
1327} 1347}
1328 1348
1349static void
1350api_trace (SV *coro_sv, int flags)
1351{
1352 dTHX;
1353 struct coro *coro = SvSTATE (coro_sv);
1354
1355 if (flags & CC_TRACE)
1356 {
1357 if (!coro->cctx)
1358 coro->cctx = cctx_new ();
1359 else if (!(coro->cctx->flags & CC_TRACE))
1360 croak ("cannot enable tracing on coroutine with custom stack");
1361
1362 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1363 }
1364 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1365 {
1366 coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
1367
1368 if (coro->flags & CF_RUNNING)
1369 PL_runops = RUNOPS_DEFAULT;
1370 else
1371 coro->runops = RUNOPS_DEFAULT;
1372 }
1373}
1374
1329MODULE = Coro::State PACKAGE = Coro::State 1375MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1330 1376
1331PROTOTYPES: DISABLE 1377PROTOTYPES: DISABLE
1332 1378
1333BOOT: 1379BOOT:
1334{ 1380{
1335#ifdef USE_ITHREADS 1381#ifdef USE_ITHREADS
1336 MUTEX_INIT (&coro_mutex); 1382 MUTEX_INIT (&coro_mutex);
1337#endif 1383#endif
1338 BOOT_PAGESIZE; 1384 BOOT_PAGESIZE;
1385
1386 irsgv = gv_fetchpv ("/", 1, SVt_PV);
1339 1387
1340 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 1388 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1341 1389
1342 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); 1390 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1343 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); 1391 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1344 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); 1392 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1345 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); 1393 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1346 1394
1347 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1348 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1349 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1350 newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1351 newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1352 newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));
1353 newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1354
1355 main_mainstack = PL_mainstack; 1395 main_mainstack = PL_mainstack;
1356 main_top_env = PL_top_env; 1396 main_top_env = PL_top_env;
1357 1397
1358 while (main_top_env->je_prev) 1398 while (main_top_env->je_prev)
1359 main_top_env = main_top_env->je_prev; 1399 main_top_env = main_top_env->je_prev;
… …
1371 struct coro *coro; 1411 struct coro *coro;
1372 HV *hv; 1412 HV *hv;
1373 int i; 1413 int i;
1374 1414
1375 Newz (0, coro, 1, struct coro); 1415 Newz (0, coro, 1, struct coro);
1376 coro->args = newAV (); 1416 coro->args = newAV ();
1377 coro->save = CORO_SAVE_DEF;
1378 coro->flags = CF_NEW; 1417 coro->flags = CF_NEW;
1379 1418
1380 if (coro_first) coro_first->prev = coro; 1419 if (coro_first) coro_first->prev = coro;
1381 coro->next = coro_first; 1420 coro->next = coro_first;
1382 coro_first = coro; 1421 coro_first = coro;
… …
1389 av_push (coro->args, newSVsv (ST (i))); 1428 av_push (coro->args, newSVsv (ST (i)));
1390} 1429}
1391 OUTPUT: 1430 OUTPUT:
1392 RETVAL 1431 RETVAL
1393 1432
1394int 1433# these not obviously related functions are all rolled into the same xs
1395save (SV *coro, int new_save = -1) 1434# function to increase chances that they all will call transfer with the same
1396 CODE: 1435# stack offset
1397 RETVAL = api_save (coro, new_save);
1398 OUTPUT:
1399 RETVAL
1400
1401int
1402save_also (SV *coro_sv, int save_also)
1403 CODE:
1404{
1405 struct coro *coro = SvSTATE (coro_sv);
1406 RETVAL = coro->save;
1407 coro->save |= save_also;
1408}
1409 OUTPUT:
1410 RETVAL
1411
1412void 1436void
1413_set_stacklevel (...) 1437_set_stacklevel (...)
1414 ALIAS: 1438 ALIAS:
1415 Coro::State::transfer = 1 1439 Coro::State::transfer = 1
1416 Coro::schedule = 2 1440 Coro::schedule = 2
… …
1511{ 1535{
1512 if (coro->mainstack) 1536 if (coro->mainstack)
1513 { 1537 {
1514 struct coro temp; 1538 struct coro temp;
1515 Zero (&temp, 1, struct coro); 1539 Zero (&temp, 1, struct coro);
1516 temp.save = CORO_SAVE_ALL;
1517 1540
1518 if (!(coro->flags & CF_RUNNING)) 1541 if (!(coro->flags & CF_RUNNING))
1519 { 1542 {
1520 save_perl (aTHX_ &temp); 1543 save_perl (aTHX_ &temp);
1521 load_perl (aTHX_ coro); 1544 load_perl (aTHX_ coro);
… …
1542 save_perl (aTHX_ coro); 1565 save_perl (aTHX_ coro);
1543 load_perl (aTHX_ &temp); 1566 load_perl (aTHX_ &temp);
1544 } 1567 }
1545 } 1568 }
1546} 1569}
1547 1570
1548SV * 1571SV *
1549is_ready (Coro::State coro) 1572is_ready (Coro::State coro)
1550 PROTOTYPE: $ 1573 PROTOTYPE: $
1551 ALIAS: 1574 ALIAS:
1552 is_ready = CF_READY 1575 is_ready = CF_READY
… …
1557 RETVAL = boolSV (coro->flags & ix); 1580 RETVAL = boolSV (coro->flags & ix);
1558 OUTPUT: 1581 OUTPUT:
1559 RETVAL 1582 RETVAL
1560 1583
1561void 1584void
1562trace (Coro::State coro, int flags = CC_TRACE | CC_TRACE_SUB) 1585api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1563 CODE:
1564 if (flags & CC_TRACE)
1565 {
1566 if (!coro->cctx)
1567 coro->cctx = cctx_new ();
1568 else if (!(coro->cctx->flags & CC_TRACE))
1569 croak ("cannot enable tracing on coroutine with custom stack");
1570
1571 coro->cctx->flags |= flags & (CC_TRACE | CC_TRACE_ALL);
1572 }
1573 else
1574 if (coro->cctx && coro->cctx->flags & CC_TRACE)
1575 {
1576 coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
1577 coro->cctx->flags |= CC_NOREUSE;
1578
1579 if (coro->flags & CF_RUNNING)
1580 PL_runops = RUNOPS_DEFAULT;
1581 else
1582 coro->runops = RUNOPS_DEFAULT;
1583 }
1584 1586
1585SV * 1587SV *
1586has_stack (Coro::State coro) 1588has_stack (Coro::State coro)
1587 PROTOTYPE: $ 1589 PROTOTYPE: $
1588 CODE: 1590 CODE:
… …
1599 RETVAL 1601 RETVAL
1600 1602
1601IV 1603IV
1602rss (Coro::State coro) 1604rss (Coro::State coro)
1603 PROTOTYPE: $ 1605 PROTOTYPE: $
1606 ALIAS:
1607 usecount = 1
1604 CODE: 1608 CODE:
1605 RETVAL = coro_rss (coro); 1609 switch (ix)
1610 {
1611 case 0: RETVAL = coro_rss (aTHX_ coro); break;
1612 case 1: RETVAL = coro->usecount; break;
1613 }
1606 OUTPUT: 1614 OUTPUT:
1607 RETVAL 1615 RETVAL
1608 1616
1609 1617
1610MODULE = Coro::State PACKAGE = Coro 1618MODULE = Coro::State PACKAGE = Coro
… …
1634 1642
1635 { 1643 {
1636 SV *sv = perl_get_sv("Coro::API", 1); 1644 SV *sv = perl_get_sv("Coro::API", 1);
1637 1645
1638 coroapi.schedule = api_schedule; 1646 coroapi.schedule = api_schedule;
1639 coroapi.save = api_save;
1640 coroapi.cede = api_cede; 1647 coroapi.cede = api_cede;
1641 coroapi.cede_notself = api_cede_notself; 1648 coroapi.cede_notself = api_cede_notself;
1642 coroapi.ready = api_ready; 1649 coroapi.ready = api_ready;
1643 coroapi.is_ready = api_is_ready; 1650 coroapi.is_ready = api_is_ready;
1644 coroapi.nready = &coro_nready; 1651 coroapi.nready = &coro_nready;
… …
1733{ 1740{
1734 struct coro *coro = SvSTATE (coro_current); 1741 struct coro *coro = SvSTATE (coro_current);
1735 1742
1736 sv_setsv (cb, &PL_sv_undef); 1743 sv_setsv (cb, &PL_sv_undef);
1737 1744
1738 if (coro_rss (coro) > SvIV (sv_pool_rss) 1745 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1739 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 1746 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1740 croak ("\3terminate\2\n"); 1747 croak ("\3terminate\2\n");
1741 1748
1742 av_clear (GvAV (PL_defgv)); 1749 av_clear (GvAV (PL_defgv));
1743 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, 1750 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1744 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); 1751 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1745 coro->save = CORO_SAVE_DEF; 1752
1746 coro->prio = 0; 1753 coro->prio = 0;
1754
1755 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1756 api_trace (coro_current, 0);
1757
1747 av_push (av_async_pool, newSVsv (coro_current)); 1758 av_push (av_async_pool, newSVsv (coro_current));
1748} 1759}
1749 1760
1750 1761
1751MODULE = Coro::State PACKAGE = Coro::AIO 1762MODULE = Coro::State PACKAGE = Coro::AIO

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