ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/Coro/Coro/State.xs
(Generate patch)

Comparing Coro/Coro/State.xs (file contents):
Revision 1.321 by root, Sat Nov 22 02:09:54 2008 UTC vs.
Revision 1.342 by root, Mon Dec 15 16:22:34 2008 UTC

1#define CORO_CLONE 1 //D
2
3#include "libcoro/coro.c" 1#include "libcoro/coro.c"
4 2
5#define PERL_NO_GET_CONTEXT 3#define PERL_NO_GET_CONTEXT
6#define PERL_EXT 4#define PERL_EXT
7 5
… …
135#else 133#else
136# define dSTACKLEVEL volatile void *stacklevel 134# define dSTACKLEVEL volatile void *stacklevel
137# define STACKLEVEL ((void *)&stacklevel) 135# define STACKLEVEL ((void *)&stacklevel)
138#endif 136#endif
139 137
140#define IN_DESTRUCT (PL_main_cv == Nullcv) 138#define IN_DESTRUCT PL_dirty
141 139
142#if __GNUC__ >= 3 140#if __GNUC__ >= 3
143# define attribute(x) __attribute__(x) 141# define attribute(x) __attribute__(x)
144# define expect(expr,value) __builtin_expect ((expr),(value)) 142# define expect(expr,value) __builtin_expect ((expr),(value))
145# define INLINE static inline 143# define INLINE static inline
… …
177static HV *coro_state_stash, *coro_stash; 175static HV *coro_state_stash, *coro_stash;
178static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 176static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
179 177
180static AV *av_destroy; /* destruction queue */ 178static AV *av_destroy; /* destruction queue */
181static SV *sv_manager; /* the manager coro */ 179static SV *sv_manager; /* the manager coro */
180static SV *sv_idle; /* $Coro::idle */
182 181
183static GV *irsgv; /* $/ */ 182static GV *irsgv; /* $/ */
184static GV *stdoutgv; /* *STDOUT */ 183static GV *stdoutgv; /* *STDOUT */
185static SV *rv_diehook; 184static SV *rv_diehook;
186static SV *rv_warnhook; 185static SV *rv_warnhook;
… …
230 int valgrind_id; 229 int valgrind_id;
231#endif 230#endif
232 unsigned char flags; 231 unsigned char flags;
233} coro_cctx; 232} coro_cctx;
234 233
234coro_cctx *cctx_current; /* the currently running cctx */
235
236/*****************************************************************************/
237
235enum { 238enum {
236 CF_RUNNING = 0x0001, /* coroutine is running */ 239 CF_RUNNING = 0x0001, /* coroutine is running */
237 CF_READY = 0x0002, /* coroutine is ready */ 240 CF_READY = 0x0002, /* coroutine is ready */
238 CF_NEW = 0x0004, /* has never been switched to */ 241 CF_NEW = 0x0004, /* has never been switched to */
239 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 242 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
243 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
240}; 244};
241 245
242/* the structure where most of the perl state is stored, overlaid on the cxstack */ 246/* the structure where most of the perl state is stored, overlaid on the cxstack */
243typedef struct 247typedef struct
244{ 248{
245 SV *defsv; 249 SV *defsv;
246 AV *defav; 250 AV *defav;
247 SV *errsv; 251 SV *errsv;
248 SV *irsgv; 252 SV *irsgv;
253 HV *hinthv;
249#define VAR(name,type) type name; 254#define VAR(name,type) type name;
250# include "state.h" 255# include "state.h"
251#undef VAR 256#undef VAR
252} perl_slots; 257} perl_slots;
253 258
… …
280 285
281 /* async_pool */ 286 /* async_pool */
282 SV *saved_deffh; 287 SV *saved_deffh;
283 SV *invoke_cb; 288 SV *invoke_cb;
284 AV *invoke_av; 289 AV *invoke_av;
290
291 /* on_enter/on_leave */
292 AV *on_enter;
293 AV *on_leave;
285 294
286 /* linked list */ 295 /* linked list */
287 struct coro *next, *prev; 296 struct coro *next, *prev;
288}; 297};
289 298
… …
348INLINE CV * 357INLINE CV *
349coro_sv_2cv (pTHX_ SV *sv) 358coro_sv_2cv (pTHX_ SV *sv)
350{ 359{
351 HV *st; 360 HV *st;
352 GV *gvp; 361 GV *gvp;
353 return sv_2cv (sv, &st, &gvp, 0); 362 CV *cv = sv_2cv (sv, &st, &gvp, 0);
363
364 if (!cv)
365 croak ("code reference expected");
366
367 return cv;
354} 368}
369
370/*****************************************************************************/
371/* magic glue */
372
373#define CORO_MAGIC_type_cv 26
374#define CORO_MAGIC_type_state PERL_MAGIC_ext
375
376#define CORO_MAGIC_NN(sv, type) \
377 (expect_true (SvMAGIC (sv)->mg_type == type) \
378 ? SvMAGIC (sv) \
379 : mg_find (sv, type))
380
381#define CORO_MAGIC(sv, type) \
382 (expect_true (SvMAGIC (sv)) \
383 ? CORO_MAGIC_NN (sv, type) \
384 : 0)
385
386#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
387#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
388
389INLINE struct coro *
390SvSTATE_ (pTHX_ SV *coro)
391{
392 HV *stash;
393 MAGIC *mg;
394
395 if (SvROK (coro))
396 coro = SvRV (coro);
397
398 if (expect_false (SvTYPE (coro) != SVt_PVHV))
399 croak ("Coro::State object required");
400
401 stash = SvSTASH (coro);
402 if (expect_false (stash != coro_stash && stash != coro_state_stash))
403 {
404 /* very slow, but rare, check */
405 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
406 croak ("Coro::State object required");
407 }
408
409 mg = CORO_MAGIC_state (coro);
410 return (struct coro *)mg->mg_ptr;
411}
412
413#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
414
415/* faster than SvSTATE, but expects a coroutine hv */
416#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
417#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
418
419/*****************************************************************************/
420/* padlist management and caching */
355 421
356static AV * 422static AV *
357coro_derive_padlist (pTHX_ CV *cv) 423coro_derive_padlist (pTHX_ CV *cv)
358{ 424{
359 AV *padlist = CvPADLIST (cv); 425 AV *padlist = CvPADLIST (cv);
… …
367 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 433 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
368#endif 434#endif
369 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 435 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
370 --AvFILLp (padlist); 436 --AvFILLp (padlist);
371 437
372 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); 438 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
373 av_store (newpadlist, 1, (SV *)newpad); 439 av_store (newpadlist, 1, (SV *)newpad);
374 440
375 return newpadlist; 441 return newpadlist;
376} 442}
377 443
378static void 444static void
379free_padlist (pTHX_ AV *padlist) 445free_padlist (pTHX_ AV *padlist)
380{ 446{
381 /* may be during global destruction */ 447 /* may be during global destruction */
382 if (SvREFCNT (padlist)) 448 if (!IN_DESTRUCT)
383 { 449 {
384 I32 i = AvFILLp (padlist); 450 I32 i = AvFILLp (padlist);
385 while (i >= 0) 451
452 while (i > 0) /* special-case index 0 */
386 { 453 {
387 SV **svp = av_fetch (padlist, i--, FALSE); 454 /* we try to be extra-careful here */
388 if (svp) 455 AV *av = (AV *)AvARRAY (padlist)[i--];
389 { 456 I32 j = AvFILLp (av);
390 SV *sv; 457
391 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) 458 while (j >= 0)
459 SvREFCNT_dec (AvARRAY (av)[j--]);
460
461 AvFILLp (av) = -1;
392 SvREFCNT_dec (sv); 462 SvREFCNT_dec (av);
393
394 SvREFCNT_dec (*svp);
395 }
396 } 463 }
397 464
465 SvREFCNT_dec (AvARRAY (padlist)[0]);
466
467 AvFILLp (padlist) = -1;
398 SvREFCNT_dec ((SV*)padlist); 468 SvREFCNT_dec ((SV*)padlist);
399 } 469 }
400} 470}
401 471
402static int 472static int
… …
411 481
412 SvREFCNT_dec (av); /* sv_magicext increased the refcount */ 482 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
413 483
414 return 0; 484 return 0;
415} 485}
416
417#define CORO_MAGIC_type_cv 26
418#define CORO_MAGIC_type_state PERL_MAGIC_ext
419 486
420static MGVTBL coro_cv_vtbl = { 487static MGVTBL coro_cv_vtbl = {
421 0, 0, 0, 0, 488 0, 0, 0, 0,
422 coro_cv_free 489 coro_cv_free
423}; 490};
424
425#define CORO_MAGIC_NN(sv, type) \
426 (expect_true (SvMAGIC (sv)->mg_type == type) \
427 ? SvMAGIC (sv) \
428 : mg_find (sv, type))
429
430#define CORO_MAGIC(sv, type) \
431 (expect_true (SvMAGIC (sv)) \
432 ? CORO_MAGIC_NN (sv, type) \
433 : 0)
434
435#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
436#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
437
438INLINE struct coro *
439SvSTATE_ (pTHX_ SV *coro)
440{
441 HV *stash;
442 MAGIC *mg;
443
444 if (SvROK (coro))
445 coro = SvRV (coro);
446
447 if (expect_false (SvTYPE (coro) != SVt_PVHV))
448 croak ("Coro::State object required");
449
450 stash = SvSTASH (coro);
451 if (expect_false (stash != coro_stash && stash != coro_state_stash))
452 {
453 /* very slow, but rare, check */
454 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
455 croak ("Coro::State object required");
456 }
457
458 mg = CORO_MAGIC_state (coro);
459 return (struct coro *)mg->mg_ptr;
460}
461
462#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
463
464/* faster than SvSTATE, but expects a coroutine hv */
465#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
466#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
467 491
468/* the next two functions merely cache the padlists */ 492/* the next two functions merely cache the padlists */
469static void 493static void
470get_padlist (pTHX_ CV *cv) 494get_padlist (pTHX_ CV *cv)
471{ 495{
… …
499 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 523 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
500 524
501 av = (AV *)mg->mg_obj; 525 av = (AV *)mg->mg_obj;
502 526
503 if (expect_false (AvFILLp (av) >= AvMAX (av))) 527 if (expect_false (AvFILLp (av) >= AvMAX (av)))
504 av_extend (av, AvMAX (av) + 1); 528 av_extend (av, AvFILLp (av) + 1);
505 529
506 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 530 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
507} 531}
508 532
509/** load & save, init *******************************************************/ 533/** load & save, init *******************************************************/
534
535static void
536on_enterleave_call (pTHX_ SV *cb);
510 537
511static void 538static void
512load_perl (pTHX_ Coro__State c) 539load_perl (pTHX_ Coro__State c)
513{ 540{
514 perl_slots *slot = c->slot; 541 perl_slots *slot = c->slot;
515 c->slot = 0; 542 c->slot = 0;
516 543
517 PL_mainstack = c->mainstack; 544 PL_mainstack = c->mainstack;
518 545
519 GvSV (PL_defgv) = slot->defsv; 546 GvSV (PL_defgv) = slot->defsv;
520 GvAV (PL_defgv) = slot->defav; 547 GvAV (PL_defgv) = slot->defav;
521 GvSV (PL_errgv) = slot->errsv; 548 GvSV (PL_errgv) = slot->errsv;
522 GvSV (irsgv) = slot->irsgv; 549 GvSV (irsgv) = slot->irsgv;
550 GvHV (PL_hintgv) = slot->hinthv;
523 551
524 #define VAR(name,type) PL_ ## name = slot->name; 552 #define VAR(name,type) PL_ ## name = slot->name;
525 # include "state.h" 553 # include "state.h"
526 #undef VAR 554 #undef VAR
527 555
… …
541 PUTBACK; 569 PUTBACK;
542 } 570 }
543 571
544 slf_frame = c->slf_frame; 572 slf_frame = c->slf_frame;
545 CORO_THROW = c->except; 573 CORO_THROW = c->except;
574
575 if (expect_false (c->on_enter))
576 {
577 int i;
578
579 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
580 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
581 }
546} 582}
547 583
548static void 584static void
549save_perl (pTHX_ Coro__State c) 585save_perl (pTHX_ Coro__State c)
550{ 586{
587 if (expect_false (c->on_leave))
588 {
589 int i;
590
591 for (i = AvFILLp (c->on_leave); i >= 0; --i)
592 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
593 }
594
551 c->except = CORO_THROW; 595 c->except = CORO_THROW;
552 c->slf_frame = slf_frame; 596 c->slf_frame = slf_frame;
553 597
554 { 598 {
555 dSP; 599 dSP;
… …
613 c->mainstack = PL_mainstack; 657 c->mainstack = PL_mainstack;
614 658
615 { 659 {
616 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 660 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
617 661
618 slot->defav = GvAV (PL_defgv); 662 slot->defav = GvAV (PL_defgv);
619 slot->defsv = DEFSV; 663 slot->defsv = DEFSV;
620 slot->errsv = ERRSV; 664 slot->errsv = ERRSV;
621 slot->irsgv = GvSV (irsgv); 665 slot->irsgv = GvSV (irsgv);
666 slot->hinthv = GvHV (PL_hintgv);
622 667
623 #define VAR(name,type) slot->name = PL_ ## name; 668 #define VAR(name,type) slot->name = PL_ ## name;
624 # include "state.h" 669 # include "state.h"
625 #undef VAR 670 #undef VAR
626 } 671 }
… …
753#endif 798#endif
754 799
755/* 800/*
756 * This overrides the default magic get method of %SIG elements. 801 * This overrides the default magic get method of %SIG elements.
757 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 802 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
758 * and instead of tryign to save and restore the hash elements, we just provide 803 * and instead of trying to save and restore the hash elements, we just provide
759 * readback here. 804 * readback here.
760 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
761 * not expecting this to actually change the hook. This is a potential problem
762 * when a schedule happens then, but we ignore this.
763 */ 805 */
764static int 806static int
765coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 807coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
766{ 808{
767 const char *s = MgPV_nolen_const (mg); 809 const char *s = MgPV_nolen_const (mg);
… …
820 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 862 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
821 863
822 if (svp) 864 if (svp)
823 { 865 {
824 SV *old = *svp; 866 SV *old = *svp;
825 *svp = newSVsv (sv); 867 *svp = SvOK (sv) ? newSVsv (sv) : 0;
826 SvREFCNT_dec (old); 868 SvREFCNT_dec (old);
827 return 0; 869 return 0;
828 } 870 }
829 } 871 }
830 872
… …
862 904
863 PL_runops = RUNOPS_DEFAULT; 905 PL_runops = RUNOPS_DEFAULT;
864 PL_curcop = &PL_compiling; 906 PL_curcop = &PL_compiling;
865 PL_in_eval = EVAL_NULL; 907 PL_in_eval = EVAL_NULL;
866 PL_comppad = 0; 908 PL_comppad = 0;
909 PL_comppad_name = 0;
910 PL_comppad_name_fill = 0;
911 PL_comppad_name_floor = 0;
867 PL_curpm = 0; 912 PL_curpm = 0;
868 PL_curpad = 0; 913 PL_curpad = 0;
869 PL_localizing = 0; 914 PL_localizing = 0;
870 PL_dirty = 0; 915 PL_dirty = 0;
871 PL_restartop = 0; 916 PL_restartop = 0;
872#if PERL_VERSION_ATLEAST (5,10,0) 917#if PERL_VERSION_ATLEAST (5,10,0)
873 PL_parser = 0; 918 PL_parser = 0;
874#endif 919#endif
920 PL_hints = 0;
875 921
876 /* recreate the die/warn hooks */ 922 /* recreate the die/warn hooks */
877 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 923 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
878 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 924 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
879 925
880 GvSV (PL_defgv) = newSV (0); 926 GvSV (PL_defgv) = newSV (0);
881 GvAV (PL_defgv) = coro->args; coro->args = 0; 927 GvAV (PL_defgv) = coro->args; coro->args = 0;
882 GvSV (PL_errgv) = newSV (0); 928 GvSV (PL_errgv) = newSV (0);
883 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 929 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
930 GvHV (PL_hintgv) = 0;
884 PL_rs = newSVsv (GvSV (irsgv)); 931 PL_rs = newSVsv (GvSV (irsgv));
885 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 932 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
886 933
887 { 934 {
888 dSP; 935 dSP;
… …
917 /* copy throw, in case it was set before coro_setup */ 964 /* copy throw, in case it was set before coro_setup */
918 CORO_THROW = coro->except; 965 CORO_THROW = coro->except;
919} 966}
920 967
921static void 968static void
922coro_destruct (pTHX_ struct coro *coro) 969coro_unwind_stacks (pTHX)
923{ 970{
924 if (!IN_DESTRUCT) 971 if (!IN_DESTRUCT)
925 { 972 {
926 /* restore all saved variables and stuff */ 973 /* restore all saved variables and stuff */
927 LEAVE_SCOPE (0); 974 LEAVE_SCOPE (0);
… …
935 POPSTACK_TO (PL_mainstack); 982 POPSTACK_TO (PL_mainstack);
936 983
937 /* unwind main stack */ 984 /* unwind main stack */
938 dounwind (-1); 985 dounwind (-1);
939 } 986 }
987}
988
989static void
990coro_destruct_perl (pTHX_ struct coro *coro)
991{
992 coro_unwind_stacks (aTHX);
940 993
941 SvREFCNT_dec (GvSV (PL_defgv)); 994 SvREFCNT_dec (GvSV (PL_defgv));
942 SvREFCNT_dec (GvAV (PL_defgv)); 995 SvREFCNT_dec (GvAV (PL_defgv));
943 SvREFCNT_dec (GvSV (PL_errgv)); 996 SvREFCNT_dec (GvSV (PL_errgv));
944 SvREFCNT_dec (PL_defoutgv); 997 SvREFCNT_dec (PL_defoutgv);
945 SvREFCNT_dec (PL_rs); 998 SvREFCNT_dec (PL_rs);
946 SvREFCNT_dec (GvSV (irsgv)); 999 SvREFCNT_dec (GvSV (irsgv));
1000 SvREFCNT_dec (GvHV (PL_hintgv));
947 1001
948 SvREFCNT_dec (PL_diehook); 1002 SvREFCNT_dec (PL_diehook);
949 SvREFCNT_dec (PL_warnhook); 1003 SvREFCNT_dec (PL_warnhook);
950 1004
951 SvREFCNT_dec (coro->saved_deffh); 1005 SvREFCNT_dec (coro->saved_deffh);
… …
969static int 1023static int
970runops_trace (pTHX) 1024runops_trace (pTHX)
971{ 1025{
972 COP *oldcop = 0; 1026 COP *oldcop = 0;
973 int oldcxix = -2; 1027 int oldcxix = -2;
974 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
975 coro_cctx *cctx = coro->cctx;
976 1028
977 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 1029 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
978 { 1030 {
979 PERL_ASYNC_CHECK (); 1031 PERL_ASYNC_CHECK ();
980 1032
981 if (cctx->flags & CC_TRACE_ALL) 1033 if (cctx_current->flags & CC_TRACE_ALL)
982 { 1034 {
983 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) 1035 if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
984 { 1036 {
985 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1037 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
986 SV **bot, **top; 1038 SV **bot, **top;
987 AV *av = newAV (); /* return values */ 1039 AV *av = newAV (); /* return values */
988 SV **cb; 1040 SV **cb;
… …
1025 1077
1026 if (PL_curcop != &PL_compiling) 1078 if (PL_curcop != &PL_compiling)
1027 { 1079 {
1028 SV **cb; 1080 SV **cb;
1029 1081
1030 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 1082 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1031 { 1083 {
1032 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1084 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1033 1085
1034 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1086 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1035 { 1087 {
… …
1058 } 1110 }
1059 1111
1060 oldcxix = cxstack_ix; 1112 oldcxix = cxstack_ix;
1061 } 1113 }
1062 1114
1063 if (cctx->flags & CC_TRACE_LINE) 1115 if (cctx_current->flags & CC_TRACE_LINE)
1064 { 1116 {
1065 dSP; 1117 dSP;
1066 1118
1067 PL_runops = RUNOPS_DEFAULT; 1119 PL_runops = RUNOPS_DEFAULT;
1068 ENTER; 1120 ENTER;
… …
1087 1139
1088 TAINT_NOT; 1140 TAINT_NOT;
1089 return 0; 1141 return 0;
1090} 1142}
1091 1143
1092static struct coro_cctx *cctx_ssl_cctx;
1093static struct CoroSLF cctx_ssl_frame; 1144static struct CoroSLF cctx_ssl_frame;
1094 1145
1095static void 1146static void
1096slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) 1147slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1097{ 1148{
1098 ta->prev = (struct coro *)cctx_ssl_cctx;
1099 ta->next = 0; 1149 ta->prev = 0;
1100} 1150}
1101 1151
1102static int 1152static int
1103slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) 1153slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1104{ 1154{
… …
1107 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1157 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1108} 1158}
1109 1159
1110/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1160/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1111static void NOINLINE 1161static void NOINLINE
1112cctx_prepare (pTHX_ coro_cctx *cctx) 1162cctx_prepare (pTHX)
1113{ 1163{
1114 PL_top_env = &PL_start_env; 1164 PL_top_env = &PL_start_env;
1115 1165
1116 if (cctx->flags & CC_TRACE) 1166 if (cctx_current->flags & CC_TRACE)
1117 PL_runops = runops_trace; 1167 PL_runops = runops_trace;
1118 1168
1119 /* we already must be executing an SLF op, there is no other valid way 1169 /* we already must be executing an SLF op, there is no other valid way
1120 * that can lead to creation of a new cctx */ 1170 * that can lead to creation of a new cctx */
1121 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", 1171 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1122 slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); 1172 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1123 1173
1124 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ 1174 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1125 cctx_ssl_cctx = cctx;
1126 cctx_ssl_frame = slf_frame; 1175 cctx_ssl_frame = slf_frame;
1127 1176
1128 slf_frame.prepare = slf_prepare_set_stacklevel; 1177 slf_frame.prepare = slf_prepare_set_stacklevel;
1129 slf_frame.check = slf_check_set_stacklevel; 1178 slf_frame.check = slf_check_set_stacklevel;
1130} 1179}
… …
1153 /* normally we would need to skip the entersub here */ 1202 /* normally we would need to skip the entersub here */
1154 /* not doing so will re-execute it, which is exactly what we want */ 1203 /* not doing so will re-execute it, which is exactly what we want */
1155 /* PL_nop = PL_nop->op_next */ 1204 /* PL_nop = PL_nop->op_next */
1156 1205
1157 /* inject a fake subroutine call to cctx_init */ 1206 /* inject a fake subroutine call to cctx_init */
1158 cctx_prepare (aTHX_ (coro_cctx *)arg); 1207 cctx_prepare (aTHX);
1159 1208
1160 /* cctx_run is the alternative tail of transfer() */ 1209 /* cctx_run is the alternative tail of transfer() */
1161 transfer_tail (aTHX); 1210 transfer_tail (aTHX);
1162 1211
1163 /* somebody or something will hit me for both perl_run and PL_restartop */ 1212 /* somebody or something will hit me for both perl_run and PL_restartop */
… …
1171 /* 1220 /*
1172 * If perl-run returns we assume exit() was being called or the coro 1221 * If perl-run returns we assume exit() was being called or the coro
1173 * fell off the end, which seems to be the only valid (non-bug) 1222 * fell off the end, which seems to be the only valid (non-bug)
1174 * reason for perl_run to return. We try to exit by jumping to the 1223 * reason for perl_run to return. We try to exit by jumping to the
1175 * bootstrap-time "top" top_env, as we cannot restore the "main" 1224 * bootstrap-time "top" top_env, as we cannot restore the "main"
1176 * coroutine as Coro has no such concept 1225 * coroutine as Coro has no such concept.
1226 * This actually isn't valid with the pthread backend, but OSes requiring
1227 * that backend are too broken to do it in a standards-compliant way.
1177 */ 1228 */
1178 PL_top_env = main_top_env; 1229 PL_top_env = main_top_env;
1179 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 1230 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1180 } 1231 }
1181} 1232}
… …
1258cctx_destroy (coro_cctx *cctx) 1309cctx_destroy (coro_cctx *cctx)
1259{ 1310{
1260 if (!cctx) 1311 if (!cctx)
1261 return; 1312 return;
1262 1313
1314 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
1315
1263 --cctx_count; 1316 --cctx_count;
1264 coro_destroy (&cctx->cctx); 1317 coro_destroy (&cctx->cctx);
1265 1318
1266 /* coro_transfer creates new, empty cctx's */ 1319 /* coro_transfer creates new, empty cctx's */
1267 if (cctx->sptr) 1320 if (cctx->sptr)
… …
1330 /* TODO: throwing up here is considered harmful */ 1383 /* TODO: throwing up here is considered harmful */
1331 1384
1332 if (expect_true (prev != next)) 1385 if (expect_true (prev != next))
1333 { 1386 {
1334 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1387 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1335 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); 1388 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1336 1389
1337 if (expect_false (next->flags & CF_RUNNING))
1338 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1339
1340 if (expect_false (next->flags & CF_DESTROYED)) 1390 if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1341 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); 1391 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1342 1392
1343#if !PERL_VERSION_ATLEAST (5,10,0) 1393#if !PERL_VERSION_ATLEAST (5,10,0)
1344 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1394 if (expect_false (PL_lex_state != LEX_NOTPARSING))
1345 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1395 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1346#endif 1396#endif
… …
1352transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1402transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1353{ 1403{
1354 dSTACKLEVEL; 1404 dSTACKLEVEL;
1355 1405
1356 /* sometimes transfer is only called to set idle_sp */ 1406 /* sometimes transfer is only called to set idle_sp */
1357 if (expect_false (!next)) 1407 if (expect_false (!prev))
1358 { 1408 {
1359 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1409 cctx_current->idle_sp = STACKLEVEL;
1360 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1410 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1361 } 1411 }
1362 else if (expect_true (prev != next)) 1412 else if (expect_true (prev != next))
1363 { 1413 {
1364 coro_cctx *prev__cctx; 1414 coro_cctx *cctx_prev;
1365 1415
1366 if (expect_false (prev->flags & CF_NEW)) 1416 if (expect_false (prev->flags & CF_NEW))
1367 { 1417 {
1368 /* create a new empty/source context */ 1418 /* create a new empty/source context */
1369 prev->cctx = cctx_new_empty ();
1370 prev->flags &= ~CF_NEW; 1419 prev->flags &= ~CF_NEW;
1371 prev->flags |= CF_RUNNING; 1420 prev->flags |= CF_RUNNING;
1372 } 1421 }
1373 1422
1374 prev->flags &= ~CF_RUNNING; 1423 prev->flags &= ~CF_RUNNING;
… …
1385 coro_setup (aTHX_ next); 1434 coro_setup (aTHX_ next);
1386 } 1435 }
1387 else 1436 else
1388 load_perl (aTHX_ next); 1437 load_perl (aTHX_ next);
1389 1438
1390 prev__cctx = prev->cctx;
1391
1392 /* possibly untie and reuse the cctx */ 1439 /* possibly untie and reuse the cctx */
1393 if (expect_true ( 1440 if (expect_true (
1394 prev__cctx->idle_sp == STACKLEVEL 1441 cctx_current->idle_sp == STACKLEVEL
1395 && !(prev__cctx->flags & CC_TRACE) 1442 && !(cctx_current->flags & CC_TRACE)
1396 && !force_cctx 1443 && !force_cctx
1397 )) 1444 ))
1398 { 1445 {
1399 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1446 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1400 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); 1447 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1401 1448
1402 prev->cctx = 0;
1403
1404 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1449 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1405 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1450 /* without this the next cctx_get might destroy the running cctx while still in use */
1406 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1451 if (expect_false (CCTX_EXPIRED (cctx_current)))
1407 if (!next->cctx) 1452 if (expect_true (!next->cctx))
1408 next->cctx = cctx_get (aTHX); 1453 next->cctx = cctx_get (aTHX);
1409 1454
1410 cctx_put (prev__cctx); 1455 cctx_put (cctx_current);
1411 } 1456 }
1457 else
1458 prev->cctx = cctx_current;
1412 1459
1413 ++next->usecount; 1460 ++next->usecount;
1414 1461
1415 if (expect_true (!next->cctx)) 1462 cctx_prev = cctx_current;
1416 next->cctx = cctx_get (aTHX); 1463 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1417 1464
1418 if (expect_false (prev__cctx != next->cctx)) 1465 next->cctx = 0;
1466
1467 if (expect_false (cctx_prev != cctx_current))
1419 { 1468 {
1420 prev__cctx->top_env = PL_top_env; 1469 cctx_prev->top_env = PL_top_env;
1421 PL_top_env = next->cctx->top_env; 1470 PL_top_env = cctx_current->top_env;
1422 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1471 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1423 } 1472 }
1424 1473
1425 transfer_tail (aTHX); 1474 transfer_tail (aTHX);
1426 } 1475 }
1427} 1476}
… …
1449 --coro_nready; 1498 --coro_nready;
1450 } 1499 }
1451 else 1500 else
1452 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1501 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1453 1502
1454 if (coro->mainstack && coro->mainstack != main_mainstack) 1503 if (coro->mainstack
1504 && coro->mainstack != main_mainstack
1505 && coro->slot
1506 && !PL_dirty)
1455 { 1507 {
1456 struct coro temp; 1508 struct coro *current = SvSTATE_current;
1457 1509
1458 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); 1510 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1459 1511
1460 save_perl (aTHX_ &temp); 1512 save_perl (aTHX_ current);
1461 load_perl (aTHX_ coro); 1513 load_perl (aTHX_ coro);
1462 1514
1463 coro_destruct (aTHX_ coro); 1515 coro_destruct_perl (aTHX_ coro);
1464 1516
1465 load_perl (aTHX_ &temp); 1517 load_perl (aTHX_ current);
1466 1518
1467 coro->slot = 0; 1519 coro->slot = 0;
1468 } 1520 }
1469 1521
1470 cctx_destroy (coro->cctx); 1522 cctx_destroy (coro->cctx);
… …
1582{ 1634{
1583 struct coro *coro; 1635 struct coro *coro;
1584 SV *sv_hook; 1636 SV *sv_hook;
1585 void (*xs_hook)(void); 1637 void (*xs_hook)(void);
1586 1638
1587 if (SvROK (coro_sv))
1588 coro_sv = SvRV (coro_sv);
1589
1590 coro = SvSTATE (coro_sv); 1639 coro = SvSTATE (coro_sv);
1591 1640
1592 if (coro->flags & CF_READY) 1641 if (coro->flags & CF_READY)
1593 return 0; 1642 return 0;
1594 1643
… …
1654 if (expect_true (next_sv)) 1703 if (expect_true (next_sv))
1655 { 1704 {
1656 struct coro *next = SvSTATE_hv (next_sv); 1705 struct coro *next = SvSTATE_hv (next_sv);
1657 1706
1658 /* cannot transfer to destroyed coros, skip and look for next */ 1707 /* cannot transfer to destroyed coros, skip and look for next */
1659 if (expect_false (next->flags & CF_DESTROYED)) 1708 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1660 SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ 1709 SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */
1661 else 1710 else
1662 { 1711 {
1663 next->flags &= ~CF_READY; 1712 next->flags &= ~CF_READY;
1664 --coro_nready; 1713 --coro_nready;
… …
1668 } 1717 }
1669 } 1718 }
1670 else 1719 else
1671 { 1720 {
1672 /* nothing to schedule: call the idle handler */ 1721 /* nothing to schedule: call the idle handler */
1722 if (SvROK (sv_idle)
1723 && SvOBJECT (SvRV (sv_idle)))
1724 {
1725 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1726 api_ready (aTHX_ SvRV (sv_idle));
1727 --coro_nready;
1728 }
1729 else
1730 {
1673 dSP; 1731 dSP;
1674 1732
1675 ENTER; 1733 ENTER;
1676 SAVETMPS; 1734 SAVETMPS;
1677 1735
1678 PUSHMARK (SP); 1736 PUSHMARK (SP);
1679 PUTBACK; 1737 PUTBACK;
1680 call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD); 1738 call_sv (sv_idle, G_VOID | G_DISCARD);
1681 1739
1682 FREETMPS; 1740 FREETMPS;
1683 LEAVE; 1741 LEAVE;
1742 }
1684 } 1743 }
1685 } 1744 }
1686} 1745}
1687 1746
1688INLINE void 1747INLINE void
… …
1759static void 1818static void
1760api_trace (pTHX_ SV *coro_sv, int flags) 1819api_trace (pTHX_ SV *coro_sv, int flags)
1761{ 1820{
1762 struct coro *coro = SvSTATE (coro_sv); 1821 struct coro *coro = SvSTATE (coro_sv);
1763 1822
1823 if (coro->flags & CF_RUNNING)
1824 croak ("cannot enable tracing on a running coroutine, caught");
1825
1764 if (flags & CC_TRACE) 1826 if (flags & CC_TRACE)
1765 { 1827 {
1766 if (!coro->cctx) 1828 if (!coro->cctx)
1767 coro->cctx = cctx_new_run (); 1829 coro->cctx = cctx_new_run ();
1768 else if (!(coro->cctx->flags & CC_TRACE)) 1830 else if (!(coro->cctx->flags & CC_TRACE))
1769 croak ("cannot enable tracing on coroutine with custom stack,"); 1831 croak ("cannot enable tracing on coroutine with custom stack, caught");
1770 1832
1771 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 1833 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1772 } 1834 }
1773 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 1835 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1774 { 1836 {
… …
1830 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 1892 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1831 api_ready (aTHX_ sv_manager); 1893 api_ready (aTHX_ sv_manager);
1832 1894
1833 frame->prepare = prepare_schedule; 1895 frame->prepare = prepare_schedule;
1834 frame->check = slf_check_repeat; 1896 frame->check = slf_check_repeat;
1897
1898 /* as a minor optimisation, we could unwind all stacks here */
1899 /* but that puts extra pressure on pp_slf, and is not worth much */
1900 /*coro_unwind_stacks (aTHX);*/
1835} 1901}
1836 1902
1837/*****************************************************************************/ 1903/*****************************************************************************/
1838/* async pool handler */ 1904/* async pool handler */
1839 1905
… …
2258 2324
2259 PL_op->op_ppaddr = pp_slf; 2325 PL_op->op_ppaddr = pp_slf;
2260 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ 2326 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2261 2327
2262 PL_op = (OP *)&slf_restore; 2328 PL_op = (OP *)&slf_restore;
2329}
2330
2331/*****************************************************************************/
2332/* dynamic wind */
2333
2334static void
2335on_enterleave_call (pTHX_ SV *cb)
2336{
2337 dSP;
2338
2339 PUSHSTACK;
2340
2341 PUSHMARK (SP);
2342 PUTBACK;
2343 call_sv (cb, G_VOID | G_DISCARD);
2344 SPAGAIN;
2345
2346 POPSTACK;
2347}
2348
2349static SV *
2350coro_avp_pop_and_free (pTHX_ AV **avp)
2351{
2352 AV *av = *avp;
2353 SV *res = av_pop (av);
2354
2355 if (AvFILLp (av) < 0)
2356 {
2357 *avp = 0;
2358 SvREFCNT_dec (av);
2359 }
2360
2361 return res;
2362}
2363
2364static void
2365coro_pop_on_enter (pTHX_ void *coro)
2366{
2367 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2368 SvREFCNT_dec (cb);
2369}
2370
2371static void
2372coro_pop_on_leave (pTHX_ void *coro)
2373{
2374 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2375 on_enterleave_call (aTHX_ sv_2mortal (cb));
2263} 2376}
2264 2377
2265/*****************************************************************************/ 2378/*****************************************************************************/
2266/* PerlIO::cede */ 2379/* PerlIO::cede */
2267 2380
… …
2348 SV **ary; 2461 SV **ary;
2349 2462
2350 /* unfortunately, building manually saves memory */ 2463 /* unfortunately, building manually saves memory */
2351 Newx (ary, 2, SV *); 2464 Newx (ary, 2, SV *);
2352 AvALLOC (av) = ary; 2465 AvALLOC (av) = ary;
2466#if PERL_VERSION_ATLEAST (5,10,0)
2353 /*AvARRAY (av) = ary;*/ 2467 AvARRAY (av) = ary;
2468#else
2354 SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */ 2469 /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
2470 /* -DDEBUGGING flags this as a bug, despite it perfectly working */
2471 SvPVX ((SV *)av) = (char *)ary;
2472#endif
2355 AvMAX (av) = 1; 2473 AvMAX (av) = 1;
2356 AvFILLp (av) = 0; 2474 AvFILLp (av) = 0;
2357 ary [0] = newSViv (count); 2475 ary [0] = newSViv (count);
2358 2476
2359 return newRV_noinc ((SV *)av); 2477 return newRV_noinc ((SV *)av);
… …
2746 coro_thx = PERL_GET_CONTEXT; 2864 coro_thx = PERL_GET_CONTEXT;
2747# endif 2865# endif
2748#endif 2866#endif
2749 BOOT_PAGESIZE; 2867 BOOT_PAGESIZE;
2750 2868
2869 cctx_current = cctx_new_empty ();
2870
2751 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 2871 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2752 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 2872 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2753 2873
2754 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 2874 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2755 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; 2875 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
… …
2881_exit (int code) 3001_exit (int code)
2882 PROTOTYPE: $ 3002 PROTOTYPE: $
2883 CODE: 3003 CODE:
2884 _exit (code); 3004 _exit (code);
2885 3005
2886#if CORO_CLONE
2887
2888SV * 3006SV *
2889clone (Coro::State coro) 3007clone (Coro::State coro)
2890 CODE: 3008 CODE:
2891{ 3009{
3010#if CORO_CLONE
2892 struct coro *ncoro = coro_clone (coro); 3011 struct coro *ncoro = coro_clone (aTHX_ coro);
2893 MAGIC *mg; 3012 MAGIC *mg;
2894 /* TODO: too much duplication */ 3013 /* TODO: too much duplication */
2895 ncoro->hv = newHV (); 3014 ncoro->hv = newHV ();
2896 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); 3015 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
2897 mg->mg_flags |= MGf_DUP; 3016 mg->mg_flags |= MGf_DUP;
2898 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv)); 3017 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
3018#else
3019 croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
3020#endif
2899} 3021}
2900 OUTPUT: 3022 OUTPUT:
2901 RETVAL 3023 RETVAL
2902
2903#endif
2904 3024
2905int 3025int
2906cctx_stacksize (int new_stacksize = 0) 3026cctx_stacksize (int new_stacksize = 0)
2907 PROTOTYPE: ;$ 3027 PROTOTYPE: ;$
2908 CODE: 3028 CODE:
… …
2958 eval = 1 3078 eval = 1
2959 CODE: 3079 CODE:
2960{ 3080{
2961 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3081 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2962 { 3082 {
2963 struct coro temp; 3083 struct coro *current = SvSTATE_current;
2964 3084
2965 if (!(coro->flags & CF_RUNNING)) 3085 if (current != coro)
2966 { 3086 {
2967 PUTBACK; 3087 PUTBACK;
2968 save_perl (aTHX_ &temp); 3088 save_perl (aTHX_ current);
2969 load_perl (aTHX_ coro); 3089 load_perl (aTHX_ coro);
3090 SPAGAIN;
2970 } 3091 }
2971 3092
2972 {
2973 dSP;
2974 ENTER;
2975 SAVETMPS;
2976 PUTBACK;
2977 PUSHSTACK; 3093 PUSHSTACK;
3094
2978 PUSHMARK (SP); 3095 PUSHMARK (SP);
3096 PUTBACK;
2979 3097
2980 if (ix) 3098 if (ix)
2981 eval_sv (coderef, 0); 3099 eval_sv (coderef, 0);
2982 else 3100 else
2983 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3101 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2984 3102
2985 POPSTACK; 3103 POPSTACK;
2986 SPAGAIN; 3104 SPAGAIN;
2987 FREETMPS;
2988 LEAVE;
2989 PUTBACK;
2990 }
2991 3105
2992 if (!(coro->flags & CF_RUNNING)) 3106 if (current != coro)
2993 { 3107 {
3108 PUTBACK;
2994 save_perl (aTHX_ coro); 3109 save_perl (aTHX_ coro);
2995 load_perl (aTHX_ &temp); 3110 load_perl (aTHX_ current);
2996 SPAGAIN; 3111 SPAGAIN;
2997 } 3112 }
2998 } 3113 }
2999} 3114}
3000 3115
… …
3004 ALIAS: 3119 ALIAS:
3005 is_ready = CF_READY 3120 is_ready = CF_READY
3006 is_running = CF_RUNNING 3121 is_running = CF_RUNNING
3007 is_new = CF_NEW 3122 is_new = CF_NEW
3008 is_destroyed = CF_DESTROYED 3123 is_destroyed = CF_DESTROYED
3124 is_suspended = CF_SUSPENDED
3009 CODE: 3125 CODE:
3010 RETVAL = boolSV (coro->flags & ix); 3126 RETVAL = boolSV (coro->flags & ix);
3011 OUTPUT: 3127 OUTPUT:
3012 RETVAL 3128 RETVAL
3013 3129
… …
3029 3145
3030SV * 3146SV *
3031has_cctx (Coro::State coro) 3147has_cctx (Coro::State coro)
3032 PROTOTYPE: $ 3148 PROTOTYPE: $
3033 CODE: 3149 CODE:
3034 RETVAL = boolSV (!!coro->cctx); 3150 /* maybe manage the running flag differently */
3151 RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
3035 OUTPUT: 3152 OUTPUT:
3036 RETVAL 3153 RETVAL
3037 3154
3038int 3155int
3039is_traced (Coro::State coro) 3156is_traced (Coro::State coro)
… …
3059 3176
3060void 3177void
3061force_cctx () 3178force_cctx ()
3062 PROTOTYPE: 3179 PROTOTYPE:
3063 CODE: 3180 CODE:
3064 SvSTATE_current->cctx->idle_sp = 0; 3181 cctx_current->idle_sp = 0;
3065 3182
3066void 3183void
3067swap_defsv (Coro::State self) 3184swap_defsv (Coro::State self)
3068 PROTOTYPE: $ 3185 PROTOTYPE: $
3069 ALIAS: 3186 ALIAS:
… …
3077 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3194 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3078 3195
3079 SV *tmp = *src; *src = *dst; *dst = tmp; 3196 SV *tmp = *src; *src = *dst; *dst = tmp;
3080 } 3197 }
3081 3198
3199void
3200cancel (Coro::State self)
3201 CODE:
3202 coro_state_destroy (aTHX_ self);
3203 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
3204
3082 3205
3083MODULE = Coro::State PACKAGE = Coro 3206MODULE = Coro::State PACKAGE = Coro
3084 3207
3085BOOT: 3208BOOT:
3086{ 3209{
3087 int i; 3210 int i;
3088 3211
3089 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3212 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3090 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3213 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3091 cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); 3214 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3092 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD); 3215 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3093 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3216 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3094 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3217 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3095 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3218 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3096 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3219 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3220 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3097 3221
3098 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3222 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3099 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3223 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3100 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3224 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3101 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3225 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
… …
3157 3281
3158void 3282void
3159cede_notself (...) 3283cede_notself (...)
3160 CODE: 3284 CODE:
3161 CORO_EXECUTE_SLF_XS (slf_init_cede_notself); 3285 CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3162
3163void
3164_cancel (Coro::State self)
3165 CODE:
3166 coro_state_destroy (aTHX_ self);
3167 coro_call_on_destroy (aTHX_ self);
3168 3286
3169void 3287void
3170_set_current (SV *current) 3288_set_current (SV *current)
3171 PROTOTYPE: $ 3289 PROTOTYPE: $
3172 CODE: 3290 CODE:
… …
3280rouse_wait (...) 3398rouse_wait (...)
3281 PROTOTYPE: ;$ 3399 PROTOTYPE: ;$
3282 PPCODE: 3400 PPCODE:
3283 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 3401 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3284 3402
3403void
3404on_enter (SV *block)
3405 ALIAS:
3406 on_leave = 1
3407 PROTOTYPE: &
3408 CODE:
3409{
3410 struct coro *coro = SvSTATE_current;
3411 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
3412
3413 block = (SV *)coro_sv_2cv (aTHX_ block);
3414
3415 if (!*avp)
3416 *avp = newAV ();
3417
3418 av_push (*avp, SvREFCNT_inc (block));
3419
3420 if (!ix)
3421 on_enterleave_call (aTHX_ block);
3422
3423 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around xs calls */
3424 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
3425 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around xs calls */
3426}
3427
3285 3428
3286MODULE = Coro::State PACKAGE = PerlIO::cede 3429MODULE = Coro::State PACKAGE = PerlIO::cede
3287 3430
3288BOOT: 3431BOOT:
3289 PerlIO_define_layer (aTHX_ &PerlIO_cede); 3432 PerlIO_define_layer (aTHX_ &PerlIO_cede);

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines