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Comparing Coro/Coro/State.xs (file contents):
Revision 1.203 by root, Mon Oct 8 03:02:00 2007 UTC vs.
Revision 1.242 by root, Thu Aug 14 12:48:20 2008 UTC

10#include "patchlevel.h" 10#include "patchlevel.h"
11 11
12#include <stdio.h> 12#include <stdio.h>
13#include <errno.h> 13#include <errno.h>
14#include <assert.h> 14#include <assert.h>
15
16#ifdef WIN32
17# undef setjmp
18# undef longjmp
19# undef _exit
20# define setjmp _setjmp // deep magic, don't ask
21#else
22# include <inttypes.h> /* most portable stdint.h */
23#endif
15 24
16#ifdef HAVE_MMAP 25#ifdef HAVE_MMAP
17# include <unistd.h> 26# include <unistd.h>
18# include <sys/mman.h> 27# include <sys/mman.h>
19# ifndef MAP_ANONYMOUS 28# ifndef MAP_ANONYMOUS
71# ifndef IS_PADCONST 80# ifndef IS_PADCONST
72# define IS_PADCONST(v) 0 81# define IS_PADCONST(v) 0
73# endif 82# endif
74#endif 83#endif
75 84
85/* 5.8.8 */
86#ifndef GV_NOTQUAL
87# define GV_NOTQUAL 0
88#endif
89#ifndef newSV
90# define newSV(l) NEWSV(0,l)
91#endif
92
93/* 5.11 */
94#ifndef CxHASARGS
95# define CxHASARGS(cx) (cx)->blk_sub.hasargs
96#endif
97
76/* 5.8.7 */ 98/* 5.8.7 */
77#ifndef SvRV_set 99#ifndef SvRV_set
78# define SvRV_set(s,v) SvRV(s) = (v) 100# define SvRV_set(s,v) SvRV(s) = (v)
79#endif
80
81/* 5.8.8 */
82#ifndef GV_NOTQUAL
83# define GV_NOTQUAL 0
84#endif
85#ifndef newSV
86# define newSV(l) NEWSV(0,l)
87#endif 101#endif
88 102
89#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 103#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
90# undef CORO_STACKGUARD 104# undef CORO_STACKGUARD
91#endif 105#endif
130#else 144#else
131# define LOCK (void)0 145# define LOCK (void)0
132# define UNLOCK (void)0 146# define UNLOCK (void)0
133#endif 147#endif
134 148
135#define strpair(const) const, sizeof (const) - 1
136
137/* helper storage struct for Coro::AIO */ 149/* helper storage struct for Coro::AIO */
138struct io_state 150struct io_state
139{ 151{
140 int errorno; 152 int errorno;
141 I32 laststype; 153 I32 laststype;
146static size_t coro_stacksize = CORO_STACKSIZE; 158static size_t coro_stacksize = CORO_STACKSIZE;
147static struct CoroAPI coroapi; 159static struct CoroAPI coroapi;
148static AV *main_mainstack; /* used to differentiate between $main and others */ 160static AV *main_mainstack; /* used to differentiate between $main and others */
149static JMPENV *main_top_env; 161static JMPENV *main_top_env;
150static HV *coro_state_stash, *coro_stash; 162static HV *coro_state_stash, *coro_stash;
151static SV *coro_mortal; /* will be freed after next transfer */ 163static volatile SV *coro_mortal; /* will be freed after next transfer */
152 164
153static GV *irsgv; /* $/ */ 165static GV *irsgv; /* $/ */
154static GV *stdoutgv; /* *STDOUT */ 166static GV *stdoutgv; /* *STDOUT */
155 167static SV *rv_diehook;
168static SV *rv_warnhook;
156static HV *hv_sig; /* %SIG */ 169static HV *hv_sig; /* %SIG */
157static SV *sv_diehook;
158static SV *sv_warnhook;
159 170
160/* async_pool helper stuff */ 171/* async_pool helper stuff */
161static SV *sv_pool_rss; 172static SV *sv_pool_rss;
162static SV *sv_pool_size; 173static SV *sv_pool_size;
163static AV *av_async_pool; 174static AV *av_async_pool;
175
176/* Coro::AnyEvent */
177static SV *sv_activity;
164 178
165static struct coro_cctx *cctx_first; 179static struct coro_cctx *cctx_first;
166static int cctx_count, cctx_idle; 180static int cctx_count, cctx_idle;
167 181
168enum { 182enum {
254#define PRIO_IDLE -3 268#define PRIO_IDLE -3
255#define PRIO_MIN -4 269#define PRIO_MIN -4
256 270
257/* for Coro.pm */ 271/* for Coro.pm */
258static SV *coro_current; 272static SV *coro_current;
273static SV *coro_readyhook;
259static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; 274static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
260static int coro_nready; 275static int coro_nready;
261static struct coro *coro_first; 276static struct coro *coro_first;
262 277
263/** lowlevel stuff **********************************************************/ 278/** lowlevel stuff **********************************************************/
264 279
265static SV * 280static SV *
266coro_get_sv (const char *name, int create) 281coro_get_sv (pTHX_ const char *name, int create)
267{ 282{
268#if PERL_VERSION_ATLEAST (5,9,0) 283#if PERL_VERSION_ATLEAST (5,10,0)
269 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 284 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
270 get_sv (name, create); 285 get_sv (name, create);
271#endif 286#endif
272 return get_sv (name, create); 287 return get_sv (name, create);
273} 288}
274 289
275static AV * 290static AV *
276coro_get_av (const char *name, int create) 291coro_get_av (pTHX_ const char *name, int create)
277{ 292{
278#if PERL_VERSION_ATLEAST (5,9,0) 293#if PERL_VERSION_ATLEAST (5,10,0)
279 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 294 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
280 get_av (name, create); 295 get_av (name, create);
281#endif 296#endif
282 return get_av (name, create); 297 return get_av (name, create);
283} 298}
284 299
285static HV * 300static HV *
286coro_get_hv (const char *name, int create) 301coro_get_hv (pTHX_ const char *name, int create)
287{ 302{
288#if PERL_VERSION_ATLEAST (5,9,0) 303#if PERL_VERSION_ATLEAST (5,10,0)
289 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 304 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
290 get_hv (name, create); 305 get_hv (name, create);
291#endif 306#endif
292 return get_hv (name, create); 307 return get_hv (name, create);
293} 308}
298 AV *padlist = CvPADLIST (cv); 313 AV *padlist = CvPADLIST (cv);
299 AV *newpadlist, *newpad; 314 AV *newpadlist, *newpad;
300 315
301 newpadlist = newAV (); 316 newpadlist = newAV ();
302 AvREAL_off (newpadlist); 317 AvREAL_off (newpadlist);
303#if PERL_VERSION_ATLEAST (5,9,0) 318#if PERL_VERSION_ATLEAST (5,10,0)
304 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); 319 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
305#else 320#else
306 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 321 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
307#endif 322#endif
308 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 323 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
346 361
347 /* casting is fun. */ 362 /* casting is fun. */
348 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 363 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
349 free_padlist (aTHX_ padlist); 364 free_padlist (aTHX_ padlist);
350 365
351 SvREFCNT_dec (av);
352
353 return 0; 366 return 0;
354} 367}
355 368
356#define PERL_MAGIC_coro PERL_MAGIC_ext 369#define CORO_MAGIC_type_cv PERL_MAGIC_ext
370#define CORO_MAGIC_type_state PERL_MAGIC_ext
357 371
358static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; 372static MGVTBL coro_cv_vtbl = {
373 0, 0, 0, 0,
374 coro_cv_free
375};
359 376
360#define CORO_MAGIC(cv) \ 377#define CORO_MAGIC(sv,type) \
361 SvMAGIC (cv) \ 378 SvMAGIC (sv) \
362 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ 379 ? SvMAGIC (sv)->mg_type == type \
363 ? SvMAGIC (cv) \ 380 ? SvMAGIC (sv) \
364 : mg_find ((SV *)cv, PERL_MAGIC_coro) \ 381 : mg_find (sv, type) \
365 : 0 382 : 0
383
384#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
385#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
366 386
367static struct coro * 387static struct coro *
368SvSTATE_ (pTHX_ SV *coro) 388SvSTATE_ (pTHX_ SV *coro)
369{ 389{
370 HV *stash; 390 HV *stash;
382 /* very slow, but rare, check */ 402 /* very slow, but rare, check */
383 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) 403 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
384 croak ("Coro::State object required"); 404 croak ("Coro::State object required");
385 } 405 }
386 406
387 mg = CORO_MAGIC (coro); 407 mg = CORO_MAGIC_state (coro);
388 return (struct coro *)mg->mg_ptr; 408 return (struct coro *)mg->mg_ptr;
389} 409}
390 410
391#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 411#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
392 412
393/* the next two functions merely cache the padlists */ 413/* the next two functions merely cache the padlists */
394static void 414static void
395get_padlist (pTHX_ CV *cv) 415get_padlist (pTHX_ CV *cv)
396{ 416{
397 MAGIC *mg = CORO_MAGIC (cv); 417 MAGIC *mg = CORO_MAGIC_cv (cv);
398 AV *av; 418 AV *av;
399 419
400 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 420 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
401 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 421 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
402 else 422 else
414} 434}
415 435
416static void 436static void
417put_padlist (pTHX_ CV *cv) 437put_padlist (pTHX_ CV *cv)
418{ 438{
419 MAGIC *mg = CORO_MAGIC (cv); 439 MAGIC *mg = CORO_MAGIC_cv (cv);
420 AV *av; 440 AV *av;
421 441
422 if (expect_false (!mg)) 442 if (expect_false (!mg))
423 { 443 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
424 sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
425 mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
426 mg->mg_virtual = &vtbl_coro;
427 mg->mg_obj = (SV *)newAV ();
428 }
429 444
430 av = (AV *)mg->mg_obj; 445 av = (AV *)mg->mg_obj;
431 446
432 if (expect_false (AvFILLp (av) >= AvMAX (av))) 447 if (expect_false (AvFILLp (av) >= AvMAX (av)))
433 av_extend (av, AvMAX (av) + 1); 448 av_extend (av, AvMAX (av) + 1);
451 GvSV (irsgv) = slot->irsgv; 466 GvSV (irsgv) = slot->irsgv;
452 467
453 #define VAR(name,type) PL_ ## name = slot->name; 468 #define VAR(name,type) PL_ ## name = slot->name;
454 # include "state.h" 469 # include "state.h"
455 #undef VAR 470 #undef VAR
456
457 /*hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);*/
458 /*hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);*/
459 471
460 { 472 {
461 dSP; 473 dSP;
462 474
463 CV *cv; 475 CV *cv;
502 514
503 if (expect_true (CvDEPTH (cv))) 515 if (expect_true (CvDEPTH (cv)))
504 { 516 {
505 EXTEND (SP, 3); 517 EXTEND (SP, 3);
506 PUSHs ((SV *)CvPADLIST (cv)); 518 PUSHs ((SV *)CvPADLIST (cv));
507 PUSHs (INT2PTR (SV *, CvDEPTH (cv))); 519 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
508 PUSHs ((SV *)cv); 520 PUSHs ((SV *)cv);
509 521
510 CvDEPTH (cv) = 0; 522 CvDEPTH (cv) = 0;
511 get_padlist (aTHX_ cv); 523 get_padlist (aTHX_ cv);
512 } 524 }
556 * allocate various perl stacks. This is an exact copy 568 * allocate various perl stacks. This is an exact copy
557 * of perl.c:init_stacks, except that it uses less memory 569 * of perl.c:init_stacks, except that it uses less memory
558 * on the (sometimes correct) assumption that coroutines do 570 * on the (sometimes correct) assumption that coroutines do
559 * not usually need a lot of stackspace. 571 * not usually need a lot of stackspace.
560 */ 572 */
561#if 1 573#if CORO_PREFER_PERL_FUNCTIONS
562# define coro_init_stacks init_stacks 574# define coro_init_stacks init_stacks
563#else 575#else
564static void 576static void
565coro_init_stacks (pTHX) 577coro_init_stacks (pTHX)
566{ 578{
592 604
593 New(54,PL_savestack,24,ANY); 605 New(54,PL_savestack,24,ANY);
594 PL_savestack_ix = 0; 606 PL_savestack_ix = 0;
595 PL_savestack_max = 24; 607 PL_savestack_max = 24;
596 608
597#if !PERL_VERSION_ATLEAST (5,9,0) 609#if !PERL_VERSION_ATLEAST (5,10,0)
598 New(54,PL_retstack,4,OP*); 610 New(54,PL_retstack,4,OP*);
599 PL_retstack_ix = 0; 611 PL_retstack_ix = 0;
600 PL_retstack_max = 4; 612 PL_retstack_max = 4;
601#endif 613#endif
602} 614}
625 637
626 Safefree (PL_tmps_stack); 638 Safefree (PL_tmps_stack);
627 Safefree (PL_markstack); 639 Safefree (PL_markstack);
628 Safefree (PL_scopestack); 640 Safefree (PL_scopestack);
629 Safefree (PL_savestack); 641 Safefree (PL_savestack);
630#if !PERL_VERSION_ATLEAST (5,9,0) 642#if !PERL_VERSION_ATLEAST (5,10,0)
631 Safefree (PL_retstack); 643 Safefree (PL_retstack);
632#endif 644#endif
633} 645}
634 646
635static size_t 647static size_t
659 rss += slot->tmps_max * sizeof (SV *); 671 rss += slot->tmps_max * sizeof (SV *);
660 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); 672 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
661 rss += slot->scopestack_max * sizeof (I32); 673 rss += slot->scopestack_max * sizeof (I32);
662 rss += slot->savestack_max * sizeof (ANY); 674 rss += slot->savestack_max * sizeof (ANY);
663 675
664#if !PERL_VERSION_ATLEAST (5,9,0) 676#if !PERL_VERSION_ATLEAST (5,10,0)
665 rss += slot->retstack_max * sizeof (OP *); 677 rss += slot->retstack_max * sizeof (OP *);
666#endif 678#endif
667 } 679 }
668 680
669 return rss; 681 return rss;
670} 682}
671 683
672/** coroutine stack handling ************************************************/ 684/** coroutine stack handling ************************************************/
685
686static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg);
687static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg);
688static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg);
689
690/* apparently < 5.8.8 */
691#ifndef MgPV_nolen_const
692#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
693 SvPV_nolen((SV*)((mg)->mg_ptr)) : \
694 (const char*)(mg)->mg_ptr)
695#endif
696
697/*
698 * This overrides the default magic get method of %SIG elements.
699 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
700 * and instead of tryign to save and restore the hash elements, we just provide
701 * readback here.
702 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
703 * not expecting this to actually change the hook. This is a potential problem
704 * when a schedule happens then, but we ignore this.
705 */
706static int
707coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
708{
709 const char *s = MgPV_nolen_const (mg);
710
711 if (*s == '_')
712 {
713 SV **svp = 0;
714
715 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
716 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
717
718 if (svp)
719 {
720 sv_setsv (sv, *svp ? *svp : &PL_sv_undef);
721 return 0;
722 }
723 }
724
725 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
726}
727
728static int
729coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
730{
731 const char *s = MgPV_nolen_const (mg);
732
733 if (*s == '_')
734 {
735 SV **svp = 0;
736
737 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
738 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
739
740 if (svp)
741 {
742 SV *old = *svp;
743 *svp = 0;
744 SvREFCNT_dec (old);
745 return 0;
746 }
747 }
748
749 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
750}
751
752static int
753coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
754{
755 const char *s = MgPV_nolen_const (mg);
756
757 if (*s == '_')
758 {
759 SV **svp = 0;
760
761 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
762 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
763
764 if (svp)
765 {
766 SV *old = *svp;
767 *svp = newSVsv (sv);
768 SvREFCNT_dec (old);
769 return 0;
770 }
771 }
772
773 return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
774}
673 775
674static void 776static void
675coro_setup (pTHX_ struct coro *coro) 777coro_setup (pTHX_ struct coro *coro)
676{ 778{
677 /* 779 /*
686 PL_curpm = 0; 788 PL_curpm = 0;
687 PL_curpad = 0; 789 PL_curpad = 0;
688 PL_localizing = 0; 790 PL_localizing = 0;
689 PL_dirty = 0; 791 PL_dirty = 0;
690 PL_restartop = 0; 792 PL_restartop = 0;
691 PL_diehook = 0; hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0); 793#if PERL_VERSION_ATLEAST (5,10,0)
692 PL_warnhook = 0; hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0); 794 PL_parser = 0;
795#endif
796
797 /* recreate the die/warn hooks */
798 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
799 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
693 800
694 GvSV (PL_defgv) = newSV (0); 801 GvSV (PL_defgv) = newSV (0);
695 GvAV (PL_defgv) = coro->args; coro->args = 0; 802 GvAV (PL_defgv) = coro->args; coro->args = 0;
696 GvSV (PL_errgv) = newSV (0); 803 GvSV (PL_errgv) = newSV (0);
697 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 804 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
712 PL_op = (OP *)&myop; 819 PL_op = (OP *)&myop;
713 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 820 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
714 SPAGAIN; 821 SPAGAIN;
715 } 822 }
716 823
717 ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */ 824 /* this newly created coroutine might be run on an existing cctx which most
825 * likely was suspended in set_stacklevel, called from entersub.
826 * set_stacklevl doesn't do anything on return, but entersub does LEAVE,
827 * so we ENTER here for symmetry
828 */
829 ENTER;
718} 830}
719 831
720static void 832static void
721coro_destroy (pTHX_ struct coro *coro) 833coro_destroy (pTHX_ struct coro *coro)
722{ 834{
806 PUSHMARK (SP); 918 PUSHMARK (SP);
807 PUSHs (&PL_sv_no); 919 PUSHs (&PL_sv_no);
808 PUSHs (fullname); 920 PUSHs (fullname);
809 PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); 921 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
810 PUTBACK; 922 PUTBACK;
811 cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0); 923 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
812 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 924 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
813 SPAGAIN; 925 SPAGAIN;
814 FREETMPS; 926 FREETMPS;
815 LEAVE; 927 LEAVE;
816 PL_runops = runops_trace; 928 PL_runops = runops_trace;
843 SAVETMPS; 955 SAVETMPS;
844 EXTEND (SP, 3); 956 EXTEND (SP, 3);
845 PUSHMARK (SP); 957 PUSHMARK (SP);
846 PUSHs (&PL_sv_yes); 958 PUSHs (&PL_sv_yes);
847 PUSHs (fullname); 959 PUSHs (fullname);
848 PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); 960 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
849 PUTBACK; 961 PUTBACK;
850 cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0); 962 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
851 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 963 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
852 SPAGAIN; 964 SPAGAIN;
853 FREETMPS; 965 FREETMPS;
854 LEAVE; 966 LEAVE;
855 PL_runops = runops_trace; 967 PL_runops = runops_trace;
869 PL_runops = RUNOPS_DEFAULT; 981 PL_runops = RUNOPS_DEFAULT;
870 PUSHMARK (SP); 982 PUSHMARK (SP);
871 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); 983 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
872 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); 984 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
873 PUTBACK; 985 PUTBACK;
874 cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0); 986 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
875 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 987 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
876 SPAGAIN; 988 SPAGAIN;
877 FREETMPS; 989 FREETMPS;
878 LEAVE; 990 LEAVE;
879 PL_runops = runops_trace; 991 PL_runops = runops_trace;
1069 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); 1181 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1070 1182
1071 if (expect_false (next->flags & CF_DESTROYED)) 1183 if (expect_false (next->flags & CF_DESTROYED))
1072 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); 1184 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1073 1185
1074 if (
1075#if PERL_VERSION_ATLEAST (5,9,0) 1186#if !PERL_VERSION_ATLEAST (5,10,0)
1076 expect_false (PL_parser)
1077#else
1078 expect_false (PL_lex_state != LEX_NOTPARSING) 1187 if (expect_false (PL_lex_state != LEX_NOTPARSING))
1079#endif
1080 )
1081 croak ("Coro::State::transfer called while parsing, but this is not supported"); 1188 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
1189#endif
1082 } 1190 }
1083} 1191}
1084 1192
1085/* always use the TRANSFER macro */ 1193/* always use the TRANSFER macro */
1086static void NOINLINE 1194static void NOINLINE
1087transfer (pTHX_ struct coro *prev, struct coro *next) 1195transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1088{ 1196{
1089 dSTACKLEVEL; 1197 dSTACKLEVEL;
1198 static volatile int has_throw;
1090 1199
1091 /* sometimes transfer is only called to set idle_sp */ 1200 /* sometimes transfer is only called to set idle_sp */
1092 if (expect_false (!next)) 1201 if (expect_false (!next))
1093 { 1202 {
1094 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1203 ((coro_cctx *)prev)->idle_sp = STACKLEVEL;
1109 prev->flags &= ~CF_RUNNING; 1218 prev->flags &= ~CF_RUNNING;
1110 next->flags |= CF_RUNNING; 1219 next->flags |= CF_RUNNING;
1111 1220
1112 LOCK; 1221 LOCK;
1113 1222
1223 /* first get rid of the old state */
1224 save_perl (aTHX_ prev);
1225
1114 if (expect_false (next->flags & CF_NEW)) 1226 if (expect_false (next->flags & CF_NEW))
1115 { 1227 {
1116 /* need to start coroutine */ 1228 /* need to start coroutine */
1117 next->flags &= ~CF_NEW; 1229 next->flags &= ~CF_NEW;
1118 /* first get rid of the old state */
1119 save_perl (aTHX_ prev);
1120 /* setup coroutine call */ 1230 /* setup coroutine call */
1121 coro_setup (aTHX_ next); 1231 coro_setup (aTHX_ next);
1122 } 1232 }
1123 else 1233 else
1124 {
1125 /* coroutine already started */
1126 save_perl (aTHX_ prev);
1127 load_perl (aTHX_ next); 1234 load_perl (aTHX_ next);
1128 }
1129 1235
1130 prev__cctx = prev->cctx; 1236 prev__cctx = prev->cctx;
1131 1237
1132 /* possibly "free" the cctx */ 1238 /* possibly "free" the cctx */
1133 if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))) 1239 if (expect_true (
1240 prev__cctx->idle_sp == STACKLEVEL
1241 && !(prev__cctx->flags & CC_TRACE)
1242 && !force_cctx
1243 ))
1134 { 1244 {
1135 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ 1245 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1136 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); 1246 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1137 1247
1138 prev->cctx = 0; 1248 prev->cctx = 0;
1148 1258
1149 ++next->usecount; 1259 ++next->usecount;
1150 1260
1151 if (expect_true (!next->cctx)) 1261 if (expect_true (!next->cctx))
1152 next->cctx = cctx_get (aTHX); 1262 next->cctx = cctx_get (aTHX);
1263
1264 has_throw = !!next->throw;
1153 1265
1154 if (expect_false (prev__cctx != next->cctx)) 1266 if (expect_false (prev__cctx != next->cctx))
1155 { 1267 {
1156 prev__cctx->top_env = PL_top_env; 1268 prev__cctx->top_env = PL_top_env;
1157 PL_top_env = next->cctx->top_env; 1269 PL_top_env = next->cctx->top_env;
1159 } 1271 }
1160 1272
1161 free_coro_mortal (aTHX); 1273 free_coro_mortal (aTHX);
1162 UNLOCK; 1274 UNLOCK;
1163 1275
1164 if (expect_false (prev->throw || next->throw)) 1276 if (expect_false (has_throw))
1165 { 1277 {
1166 struct coro *coro = SvSTATE (coro_current); 1278 struct coro *coro = SvSTATE (coro_current);
1167 1279
1168 if (coro->throw) 1280 if (coro->throw)
1169 { 1281 {
1179struct transfer_args 1291struct transfer_args
1180{ 1292{
1181 struct coro *prev, *next; 1293 struct coro *prev, *next;
1182}; 1294};
1183 1295
1184#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) 1296#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1185#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1297#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1186 1298
1187/** high level stuff ********************************************************/ 1299/** high level stuff ********************************************************/
1188 1300
1189static int 1301static int
1283{ 1395{
1284 dTHX; 1396 dTHX;
1285 struct transfer_args ta; 1397 struct transfer_args ta;
1286 1398
1287 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1399 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1288 TRANSFER (ta); 1400 TRANSFER (ta, 1);
1289} 1401}
1290 1402
1291/** Coro ********************************************************************/ 1403/** Coro ********************************************************************/
1292 1404
1293static void 1405static void
1295{ 1407{
1296 av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); 1408 av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1297} 1409}
1298 1410
1299static SV * 1411static SV *
1300coro_deq (pTHX_ int min_prio) 1412coro_deq (pTHX)
1301{ 1413{
1302 int prio = PRIO_MAX - PRIO_MIN; 1414 int prio;
1303 1415
1304 min_prio -= PRIO_MIN;
1305 if (min_prio < 0)
1306 min_prio = 0;
1307
1308 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) 1416 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1309 if (AvFILLp (coro_ready [prio]) >= 0) 1417 if (AvFILLp (coro_ready [prio]) >= 0)
1310 return av_shift (coro_ready [prio]); 1418 return av_shift (coro_ready [prio]);
1311 1419
1312 return 0; 1420 return 0;
1313} 1421}
1315static int 1423static int
1316api_ready (SV *coro_sv) 1424api_ready (SV *coro_sv)
1317{ 1425{
1318 dTHX; 1426 dTHX;
1319 struct coro *coro; 1427 struct coro *coro;
1428 SV *sv_hook;
1429 void (*xs_hook)(void);
1320 1430
1321 if (SvROK (coro_sv)) 1431 if (SvROK (coro_sv))
1322 coro_sv = SvRV (coro_sv); 1432 coro_sv = SvRV (coro_sv);
1323 1433
1324 coro = SvSTATE (coro_sv); 1434 coro = SvSTATE (coro_sv);
1327 return 0; 1437 return 0;
1328 1438
1329 coro->flags |= CF_READY; 1439 coro->flags |= CF_READY;
1330 1440
1331 LOCK; 1441 LOCK;
1442
1443 sv_hook = coro_nready ? 0 : coro_readyhook;
1444 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1445
1332 coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); 1446 coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1333 ++coro_nready; 1447 ++coro_nready;
1448
1334 UNLOCK; 1449 UNLOCK;
1450
1451 if (sv_hook)
1452 {
1453 dSP;
1454
1455 ENTER;
1456 SAVETMPS;
1457
1458 PUSHMARK (SP);
1459 PUTBACK;
1460 call_sv (sv_hook, G_DISCARD);
1461 SPAGAIN;
1462
1463 FREETMPS;
1464 LEAVE;
1465 }
1466
1467 if (xs_hook)
1468 xs_hook ();
1335 1469
1336 return 1; 1470 return 1;
1337} 1471}
1338 1472
1339static int 1473static int
1349 SV *prev_sv, *next_sv; 1483 SV *prev_sv, *next_sv;
1350 1484
1351 for (;;) 1485 for (;;)
1352 { 1486 {
1353 LOCK; 1487 LOCK;
1354 next_sv = coro_deq (aTHX_ PRIO_MIN); 1488 next_sv = coro_deq (aTHX);
1355 1489
1356 /* nothing to schedule: call the idle handler */ 1490 /* nothing to schedule: call the idle handler */
1357 if (expect_false (!next_sv)) 1491 if (expect_false (!next_sv))
1358 { 1492 {
1359 dSP; 1493 dSP;
1363 SAVETMPS; 1497 SAVETMPS;
1364 1498
1365 PUSHMARK (SP); 1499 PUSHMARK (SP);
1366 PUTBACK; 1500 PUTBACK;
1367 call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); 1501 call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
1502 SPAGAIN;
1368 1503
1369 FREETMPS; 1504 FREETMPS;
1370 LEAVE; 1505 LEAVE;
1371 continue; 1506 continue;
1372 } 1507 }
1427{ 1562{
1428 dTHX; 1563 dTHX;
1429 struct transfer_args ta; 1564 struct transfer_args ta;
1430 1565
1431 prepare_schedule (aTHX_ &ta); 1566 prepare_schedule (aTHX_ &ta);
1432 TRANSFER (ta); 1567 TRANSFER (ta, 1);
1433} 1568}
1434 1569
1435static int 1570static int
1436api_cede (void) 1571api_cede (void)
1437{ 1572{
1440 1575
1441 prepare_cede (aTHX_ &ta); 1576 prepare_cede (aTHX_ &ta);
1442 1577
1443 if (expect_true (ta.prev != ta.next)) 1578 if (expect_true (ta.prev != ta.next))
1444 { 1579 {
1445 TRANSFER (ta); 1580 TRANSFER (ta, 1);
1446 return 1; 1581 return 1;
1447 } 1582 }
1448 else 1583 else
1449 return 0; 1584 return 0;
1450} 1585}
1455 dTHX; 1590 dTHX;
1456 struct transfer_args ta; 1591 struct transfer_args ta;
1457 1592
1458 if (prepare_cede_notself (aTHX_ &ta)) 1593 if (prepare_cede_notself (aTHX_ &ta))
1459 { 1594 {
1460 TRANSFER (ta); 1595 TRANSFER (ta, 1);
1461 return 1; 1596 return 1;
1462 } 1597 }
1463 else 1598 else
1464 return 0; 1599 return 0;
1465} 1600}
1502 BOOT_PAGESIZE; 1637 BOOT_PAGESIZE;
1503 1638
1504 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 1639 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1505 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 1640 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
1506 1641
1642 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
1643 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
1644 orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
1645
1507 hv_sig = coro_get_hv ("SIG", TRUE); 1646 hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1508 sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE); 1647 rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
1509 sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE); 1648 rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1510
1511 if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
1512 if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
1513 1649
1514 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 1650 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1515 1651
1516 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); 1652 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1517 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); 1653 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1522 main_top_env = PL_top_env; 1658 main_top_env = PL_top_env;
1523 1659
1524 while (main_top_env->je_prev) 1660 while (main_top_env->je_prev)
1525 main_top_env = main_top_env->je_prev; 1661 main_top_env = main_top_env->je_prev;
1526 1662
1527 coroapi.ver = CORO_API_VERSION; 1663 coroapi.ver = CORO_API_VERSION;
1664 coroapi.rev = CORO_API_REVISION;
1528 coroapi.transfer = api_transfer; 1665 coroapi.transfer = api_transfer;
1529 1666
1530 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 1667 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1531} 1668}
1532 1669
1533SV * 1670SV *
1534new (char *klass, ...) 1671new (char *klass, ...)
1535 CODE: 1672 CODE:
1536{ 1673{
1537 struct coro *coro; 1674 struct coro *coro;
1675 MAGIC *mg;
1538 HV *hv; 1676 HV *hv;
1539 int i; 1677 int i;
1540 1678
1541 Newz (0, coro, 1, struct coro); 1679 Newz (0, coro, 1, struct coro);
1542 coro->args = newAV (); 1680 coro->args = newAV ();
1545 if (coro_first) coro_first->prev = coro; 1683 if (coro_first) coro_first->prev = coro;
1546 coro->next = coro_first; 1684 coro->next = coro_first;
1547 coro_first = coro; 1685 coro_first = coro;
1548 1686
1549 coro->hv = hv = newHV (); 1687 coro->hv = hv = newHV ();
1550 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; 1688 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
1689 mg->mg_flags |= MGf_DUP;
1551 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 1690 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1552 1691
1553 av_extend (coro->args, items - 1); 1692 av_extend (coro->args, items - 1);
1554 for (i = 1; i < items; i++) 1693 for (i = 1; i < items; i++)
1555 av_push (coro->args, newSVsv (ST (i))); 1694 av_push (coro->args, newSVsv (ST (i)));
1569 Coro::cede_notself = 4 1708 Coro::cede_notself = 4
1570 CODE: 1709 CODE:
1571{ 1710{
1572 struct transfer_args ta; 1711 struct transfer_args ta;
1573 1712
1713 PUTBACK;
1574 switch (ix) 1714 switch (ix)
1575 { 1715 {
1576 case 0: 1716 case 0:
1577 ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); 1717 ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0)));
1578 ta.next = 0; 1718 ta.next = 0;
1597 if (!prepare_cede_notself (aTHX_ &ta)) 1737 if (!prepare_cede_notself (aTHX_ &ta))
1598 XSRETURN_EMPTY; 1738 XSRETURN_EMPTY;
1599 1739
1600 break; 1740 break;
1601 } 1741 }
1742 SPAGAIN;
1602 1743
1603 BARRIER; 1744 BARRIER;
1745 PUTBACK;
1604 TRANSFER (ta); 1746 TRANSFER (ta, 0);
1605 1747 SPAGAIN; /* might be the sp of a different coroutine now */
1606 if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev)) 1748 /* be extra careful not to ever do anything after TRANSFER */
1607 XSRETURN_YES;
1608} 1749}
1609 1750
1610bool 1751bool
1611_destroy (SV *coro_sv) 1752_destroy (SV *coro_sv)
1612 CODE: 1753 CODE:
1613 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); 1754 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1614 OUTPUT: 1755 OUTPUT:
1615 RETVAL 1756 RETVAL
1616 1757
1617void 1758void
1618_exit (code) 1759_exit (int code)
1619 int code
1620 PROTOTYPE: $ 1760 PROTOTYPE: $
1621 CODE: 1761 CODE:
1622 _exit (code); 1762 _exit (code);
1623 1763
1624int 1764int
1664 { 1804 {
1665 struct coro temp; 1805 struct coro temp;
1666 1806
1667 if (!(coro->flags & CF_RUNNING)) 1807 if (!(coro->flags & CF_RUNNING))
1668 { 1808 {
1809 PUTBACK;
1669 save_perl (aTHX_ &temp); 1810 save_perl (aTHX_ &temp);
1670 load_perl (aTHX_ coro); 1811 load_perl (aTHX_ coro);
1671 } 1812 }
1672 1813
1673 { 1814 {
1674 dSP; 1815 dSP;
1675 ENTER; 1816 ENTER;
1676 SAVETMPS; 1817 SAVETMPS;
1818 PUTBACK;
1819 PUSHSTACK;
1677 PUSHMARK (SP); 1820 PUSHMARK (SP);
1678 PUTBACK;
1679 1821
1680 if (ix) 1822 if (ix)
1681 eval_sv (coderef, 0); 1823 eval_sv (coderef, 0);
1682 else 1824 else
1683 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1825 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1684 1826
1827 POPSTACK;
1685 SPAGAIN; 1828 SPAGAIN;
1686 FREETMPS; 1829 FREETMPS;
1687 LEAVE; 1830 LEAVE;
1688 PUTBACK; 1831 PUTBACK;
1689 } 1832 }
1690 1833
1691 if (!(coro->flags & CF_RUNNING)) 1834 if (!(coro->flags & CF_RUNNING))
1692 { 1835 {
1693 save_perl (aTHX_ coro); 1836 save_perl (aTHX_ coro);
1694 load_perl (aTHX_ &temp); 1837 load_perl (aTHX_ &temp);
1838 SPAGAIN;
1695 } 1839 }
1696 } 1840 }
1697} 1841}
1698 1842
1699SV * 1843SV *
1711 1855
1712void 1856void
1713api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 1857api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1714 1858
1715SV * 1859SV *
1716has_stack (Coro::State coro) 1860has_cctx (Coro::State coro)
1717 PROTOTYPE: $ 1861 PROTOTYPE: $
1718 CODE: 1862 CODE:
1719 RETVAL = boolSV (!!coro->cctx); 1863 RETVAL = boolSV (!!coro->cctx);
1720 OUTPUT: 1864 OUTPUT:
1721 RETVAL 1865 RETVAL
1740 case 1: RETVAL = coro->usecount; break; 1884 case 1: RETVAL = coro->usecount; break;
1741 } 1885 }
1742 OUTPUT: 1886 OUTPUT:
1743 RETVAL 1887 RETVAL
1744 1888
1889void
1890force_cctx ()
1891 CODE:
1892 struct coro *coro = SvSTATE (coro_current);
1893 coro->cctx->idle_sp = 0;
1894
1895void
1896throw (Coro::State self, SV *throw = &PL_sv_undef)
1897 PROTOTYPE: $;$
1898 CODE:
1899 SvREFCNT_dec (self->throw);
1900 self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1901
1902void
1903swap_defsv (Coro::State self)
1904 PROTOTYPE: $
1905 ALIAS:
1906 swap_defav = 1
1907 CODE:
1908 if (!self->slot)
1909 croak ("cannot swap state with coroutine that has no saved state");
1910 else
1911 {
1912 SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv);
1913 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
1914
1915 SV *tmp = *src; *src = *dst; *dst = tmp;
1916 }
1745 1917
1746MODULE = Coro::State PACKAGE = Coro 1918MODULE = Coro::State PACKAGE = Coro
1747 1919
1748BOOT: 1920BOOT:
1749{ 1921{
1750 int i; 1922 int i;
1751 1923
1752 sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE);
1753 sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE);
1754 av_async_pool = coro_get_av ("Coro::async_pool", TRUE); 1924 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
1925 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
1926 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1755 1927
1756 coro_current = coro_get_sv ("Coro::current", FALSE); 1928 coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1757 SvREADONLY_on (coro_current); 1929 SvREADONLY_on (coro_current);
1758 1930
1759 coro_stash = gv_stashpv ("Coro", TRUE); 1931 coro_stash = gv_stashpv ("Coro", TRUE);
1760 1932
1761 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 1933 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1791 PROTOTYPE: $ 1963 PROTOTYPE: $
1792 CODE: 1964 CODE:
1793 SvREFCNT_dec (SvRV (coro_current)); 1965 SvREFCNT_dec (SvRV (coro_current));
1794 SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); 1966 SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1795 1967
1968void
1969_set_readyhook (SV *hook)
1970 PROTOTYPE: $
1971 CODE:
1972 LOCK;
1973 SvREFCNT_dec (coro_readyhook);
1974 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
1975 UNLOCK;
1976
1796int 1977int
1797prio (Coro::State coro, int newprio = 0) 1978prio (Coro::State coro, int newprio = 0)
1798 ALIAS: 1979 ALIAS:
1799 nice = 1 1980 nice = 1
1800 CODE: 1981 CODE:
1829 CODE: 2010 CODE:
1830 RETVAL = coro_nready; 2011 RETVAL = coro_nready;
1831 OUTPUT: 2012 OUTPUT:
1832 RETVAL 2013 RETVAL
1833 2014
1834void
1835throw (Coro::State self, SV *throw = &PL_sv_undef)
1836 PROTOTYPE: $;$
1837 CODE:
1838 SvREFCNT_dec (self->throw);
1839 self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1840
1841# for async_pool speedup 2015# for async_pool speedup
1842void 2016void
1843_pool_1 (SV *cb) 2017_pool_1 (SV *cb)
1844 CODE: 2018 CODE:
1845{ 2019{
1846 struct coro *coro = SvSTATE (coro_current); 2020 struct coro *coro = SvSTATE (coro_current);
1847 HV *hv = (HV *)SvRV (coro_current); 2021 HV *hv = (HV *)SvRV (coro_current);
1848 AV *defav = GvAV (PL_defgv); 2022 AV *defav = GvAV (PL_defgv);
1849 SV *invoke = hv_delete (hv, strpair ("_invoke"), 0); 2023 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1850 AV *invoke_av; 2024 AV *invoke_av;
1851 int i, len; 2025 int i, len;
1852 2026
1853 if (!invoke) 2027 if (!invoke)
2028 {
2029 SV *old = PL_diehook;
2030 PL_diehook = 0;
2031 SvREFCNT_dec (old);
1854 croak ("\3async_pool terminate\2\n"); 2032 croak ("\3async_pool terminate\2\n");
2033 }
1855 2034
1856 SvREFCNT_dec (coro->saved_deffh); 2035 SvREFCNT_dec (coro->saved_deffh);
1857 coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); 2036 coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1858 2037
1859 hv_store (hv, "desc", sizeof ("desc") - 1, 2038 hv_store (hv, "desc", sizeof ("desc") - 1,
1860 newSVpvn (strpair ("[async_pool]")), 0); 2039 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1861 2040
1862 invoke_av = (AV *)SvRV (invoke); 2041 invoke_av = (AV *)SvRV (invoke);
1863 len = av_len (invoke_av); 2042 len = av_len (invoke_av);
1864 2043
1865 sv_setsv (cb, AvARRAY (invoke_av)[0]); 2044 sv_setsv (cb, AvARRAY (invoke_av)[0]);
1885 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2064 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1886 coro->saved_deffh = 0; 2065 coro->saved_deffh = 0;
1887 2066
1888 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) 2067 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1889 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2068 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2069 {
2070 SV *old = PL_diehook;
2071 PL_diehook = 0;
2072 SvREFCNT_dec (old);
1890 croak ("\3async_pool terminate\2\n"); 2073 croak ("\3async_pool terminate\2\n");
2074 }
1891 2075
1892 av_clear (GvAV (PL_defgv)); 2076 av_clear (GvAV (PL_defgv));
1893 hv_store ((HV *)SvRV (coro_current), strpair ("desc"), 2077 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1894 newSVpvn (strpair ("[async_pool idle]")), 0); 2078 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1895 2079
1896 coro->prio = 0; 2080 coro->prio = 0;
1897 2081
1898 if (coro->cctx && (coro->cctx->flags & CC_TRACE)) 2082 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1899 api_trace (coro_current, 0); 2083 api_trace (coro_current, 0);
1934 PL_laststype = data->laststype; 2118 PL_laststype = data->laststype;
1935 PL_laststatval = data->laststatval; 2119 PL_laststatval = data->laststatval;
1936 PL_statcache = data->statcache; 2120 PL_statcache = data->statcache;
1937} 2121}
1938 2122
2123
2124MODULE = Coro::State PACKAGE = Coro::AnyEvent
2125
2126BOOT:
2127 sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
2128
2129SV *
2130_schedule (...)
2131 PROTOTYPE: @
2132 CODE:
2133{
2134 static int incede;
2135
2136 api_cede_notself ();
2137
2138 ++incede;
2139 while (coro_nready >= incede && api_cede ())
2140 ;
2141
2142 sv_setsv (sv_activity, &PL_sv_undef);
2143 if (coro_nready >= incede)
2144 {
2145 PUSHMARK (SP);
2146 PUTBACK;
2147 call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL);
2148 SPAGAIN;
2149 }
2150
2151 --incede;
2152}
2153

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