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Comparing Coro/Coro/State.xs (file contents):
Revision 1.89 by root, Sat Nov 25 00:40:26 2006 UTC vs.
Revision 1.92 by root, Sun Nov 26 02:16:19 2006 UTC

27# ifndef IS_PADCONST 27# ifndef IS_PADCONST
28# define IS_PADCONST(v) 0 28# define IS_PADCONST(v) 0
29# endif 29# endif
30#endif 30#endif
31 31
32#include <stdio.h>
32#include <errno.h> 33#include <errno.h>
33 34
34#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 35#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
35# undef STACKGUARD 36# undef STACKGUARD
36#endif 37#endif
57# else 58# else
58# define BOOT_PAGESIZE 59# define BOOT_PAGESIZE
59# endif 60# endif
60#endif 61#endif
61 62
62#define SUB_INIT "Coro::State::initialize"
63
64/* The next macro should declare a variable stacklevel that contains and approximation 63/* The next macro should declare a variable stacklevel that contains and approximation
65 * to the current C stack pointer. Its property is that it changes with each call 64 * to the current C stack pointer. Its property is that it changes with each call
66 * and should be unique. */ 65 * and should be unique. */
66#define dSTACKLEVEL int stacklevel
67#define dSTACKLEVEL void *stacklevel = &stacklevel 67#define STACKLEVEL ((void *)&stacklevel)
68 68
69#define IN_DESTRUCT (PL_main_cv == Nullcv) 69#define IN_DESTRUCT (PL_main_cv == Nullcv)
70 70
71#define labs(l) ((l) >= 0 ? (l) : -(l)) 71#define labs(l) ((l) >= 0 ? (l) : -(l))
72 72
73#include "CoroAPI.h" 73#include "CoroAPI.h"
74
75#define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */
74 76
75#ifdef USE_ITHREADS 77#ifdef USE_ITHREADS
76static perl_mutex coro_mutex; 78static perl_mutex coro_mutex;
77# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) 79# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
78# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) 80# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
84static struct CoroAPI coroapi; 86static struct CoroAPI coroapi;
85static AV *main_mainstack; /* used to differentiate between $main and others */ 87static AV *main_mainstack; /* used to differentiate between $main and others */
86static HV *coro_state_stash, *coro_stash; 88static HV *coro_state_stash, *coro_stash;
87static SV *coro_mortal; /* will be freed after next transfer */ 89static SV *coro_mortal; /* will be freed after next transfer */
88 90
89/* this is actually not just the c stack but also c registers etc... */ 91/* this is a structure representing a c-level coroutine */
90typedef struct coro_stack { 92typedef struct coro_stack {
91 struct coro_stack *next; 93 struct coro_stack *next;
92 94
93 void *idle_sp; 95 void *idle_sp; /* original stacklevel when coroutine was created */
94 void *sptr; 96 void *sptr;
95 long ssize; /* positive == mmap, otherwise malloc */ 97 long ssize; /* positive == mmap, otherwise malloc */
96 98
97 /* cpu state */ 99 /* cpu state */
98 coro_context cctx; 100 coro_context cctx;
101 JMPENV *top_env;
99} coro_stack; 102} coro_stack;
100 103
104/* the (fake) coro_stack representing the main program */
101static coro_stack *main_stack; 105static coro_stack *main_stack;
102 106
107/* this is a structure representing a perl-level coroutine */
103struct coro { 108struct coro {
109 /* the c coroutine allocated to this perl coroutine, if any */
110 coro_stack *stack;
111
112 /* data associated with this coroutine (initial args) */
113 AV *args;
114 int refcnt;
115
104 /* optionally saved, might be zero */ 116 /* optionally saved, might be zero */
105 AV *defav; 117 AV *defav;
106 SV *defsv; 118 SV *defsv;
107 SV *errsv; 119 SV *errsv;
108 120
109 /* saved global state not related to stacks */ 121 /* saved global state not related to stacks */
110 U8 dowarn; 122 U8 dowarn;
111 I32 in_eval; 123 I32 in_eval;
112
113 /* the c stack, if any */
114 coro_stack *stack;
115 124
116 /* the stacks and related info (callchain etc..) */ 125 /* the stacks and related info (callchain etc..) */
117 PERL_SI *curstackinfo; 126 PERL_SI *curstackinfo;
118 AV *curstack; 127 AV *curstack;
119 AV *mainstack; 128 AV *mainstack;
140 OP **retstack; 149 OP **retstack;
141 I32 retstack_ix; 150 I32 retstack_ix;
142 I32 retstack_max; 151 I32 retstack_max;
143 PMOP *curpm; 152 PMOP *curpm;
144 COP *curcop; 153 COP *curcop;
145 JMPENV *top_env;
146 154
147 /* coro process data */ 155 /* coro process data */
148 int prio; 156 int prio;
149
150 /* data associated with this coroutine (initial args) */
151 AV *args;
152 int refcnt;
153}; 157};
154 158
155typedef struct coro *Coro__State; 159typedef struct coro *Coro__State;
156typedef struct coro *Coro__State_or_hashref; 160typedef struct coro *Coro__State_or_hashref;
157 161
300 PL_retstack_ix = c->retstack_ix; 304 PL_retstack_ix = c->retstack_ix;
301 PL_retstack_max = c->retstack_max; 305 PL_retstack_max = c->retstack_max;
302#endif 306#endif
303 PL_curpm = c->curpm; 307 PL_curpm = c->curpm;
304 PL_curcop = c->curcop; 308 PL_curcop = c->curcop;
305 PL_top_env = c->top_env;
306 309
307 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 310 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
308 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 311 if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
309 if (c->errsv) REPLACE_SV (ERRSV , c->errsv); 312 if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
310 313
428 c->retstack_ix = PL_retstack_ix; 431 c->retstack_ix = PL_retstack_ix;
429 c->retstack_max = PL_retstack_max; 432 c->retstack_max = PL_retstack_max;
430#endif 433#endif
431 c->curpm = PL_curpm; 434 c->curpm = PL_curpm;
432 c->curcop = PL_curcop; 435 c->curcop = PL_curcop;
433 c->top_env = PL_top_env;
434} 436}
435 437
436/* 438/*
437 * allocate various perl stacks. This is an exact copy 439 * allocate various perl stacks. This is an exact copy
438 * of perl.c:init_stacks, except that it uses less memory 440 * of perl.c:init_stacks, except that it uses less memory
540 * emulate part of the perl startup here. 542 * emulate part of the perl startup here.
541 */ 543 */
542 dTHX; 544 dTHX;
543 dSP; 545 dSP;
544 UNOP myop; 546 UNOP myop;
545 SV *sub_init = (SV *)get_cv (SUB_INIT, FALSE); 547 SV *sub_init = (SV *)get_cv ("Coro::State::coro_init", FALSE);
546 548
547 coro_init_stacks (aTHX); 549 coro_init_stacks (aTHX);
548 /*PL_curcop = 0;*/ 550 /*PL_curcop = 0;*/
549 /*PL_in_eval = PL_in_eval;*/ /* inherit */ 551 /*PL_in_eval = PL_in_eval;*/ /* inherit */
550 SvREFCNT_dec (GvAV (PL_defgv)); 552 SvREFCNT_dec (GvAV (PL_defgv));
566 568
567 ENTER; /* necessary e.g. for dounwind */ 569 ENTER; /* necessary e.g. for dounwind */
568} 570}
569 571
570static void 572static void
571transfer_tail () 573free_coro_mortal ()
572{ 574{
573 if (coro_mortal) 575 if (coro_mortal)
574 { 576 {
575 SvREFCNT_dec (coro_mortal); 577 SvREFCNT_dec (coro_mortal);
576 coro_mortal = 0; 578 coro_mortal = 0;
577 } 579 }
578
579 UNLOCK;
580} 580}
581 581
582static void 582static void
583coro_run (void *arg) 583coro_run (void *arg)
584{ 584{
585 /* 585 /*
586 * this is a _very_ stripped down perl interpreter ;) 586 * this is a _very_ stripped down perl interpreter ;)
587 */ 587 */
588 dTHX; 588 dTHX;
589
590 transfer_tail ();
591
592 PL_top_env = &PL_start_env; 589 PL_top_env = &PL_start_env;
593 PL_restartop = PL_op->op_next; 590
591 UNLOCK;
592
593 sv_setiv (get_sv ("Coro::State::cctx_stack", FALSE), PTR2IV ((coro_stack *)arg));
594 sv_setiv (get_sv ("Coro::State::cctx_restartop", FALSE), PTR2IV (PL_op));
595 PL_restartop = CvSTART (get_cv ("Coro::State::cctx_init", FALSE));
596
594 /* somebody will hit me for both perl_run and PL_restart_top */ 597 /* somebody will hit me for both perl_run and PL_restart_op */
595 perl_run (aTHX_ PERL_GET_CONTEXT); 598 perl_run (aTHX_ PERL_GET_CONTEXT);
596 599
597 abort (); 600 abort ();
598} 601}
599 602
609 stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */ 612 stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */
610 stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 613 stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
611 614
612 if (stack->sptr == (void *)-1) 615 if (stack->sptr == (void *)-1)
613 { 616 {
614 fprintf (stderr, "FATAL: unable to mmap stack for coroutine\n"); 617 perror ("FATAL: unable to mmap stack for coroutine");
615 _exit (EXIT_FAILURE); 618 _exit (EXIT_FAILURE);
616 } 619 }
617 620
618 mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE); 621 mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
619 622
622 stack->ssize = STACKSIZE * (long)sizeof (long); 625 stack->ssize = STACKSIZE * (long)sizeof (long);
623 New (0, stack->sptr, STACKSIZE, long); 626 New (0, stack->sptr, STACKSIZE, long);
624 627
625 if (!stack->sptr) 628 if (!stack->sptr)
626 { 629 {
627 fprintf (stderr, "FATAL: unable to malloc stack for coroutine\n"); 630 perror (stderr, "FATAL: unable to malloc stack for coroutine");
628 _exit (EXIT_FAILURE); 631 _exit (EXIT_FAILURE);
629 } 632 }
630 633
631#endif 634#endif
632 635
633 coro_create (&stack->cctx, coro_run, 0, stack->sptr, stack->ssize); 636 coro_create (&stack->cctx, coro_run, (void *)stack, stack->sptr, stack->ssize);
634 637
635 return stack; 638 return stack;
636} 639}
637 640
638static void 641static void
650 Safefree (stack); 653 Safefree (stack);
651} 654}
652 655
653static coro_stack *stack_first; 656static coro_stack *stack_first;
654 657
655static void 658static coro_stack *
656stack_get (struct coro *coro) 659stack_get ()
657{ 660{
661 coro_stack *stack;
662
658 if (stack_first) 663 if (stack_first)
659 { 664 {
660 coro->stack = stack_first; 665 stack = stack_first;
661 stack_first = stack_first->next; 666 stack_first = stack->next;
662 } 667 }
663 else 668 else
669 {
664 coro->stack = stack_new (); 670 stack = stack_new ();
671 PL_op = PL_op->op_next;
672 }
673
674 return stack;
665} 675}
666 676
667static void 677static void
668stack_put (coro_stack *stack) 678stack_put (coro_stack *stack)
669{ 679{
676transfer_impl (pTHX_ struct coro *prev, struct coro *next, int flags) 686transfer_impl (pTHX_ struct coro *prev, struct coro *next, int flags)
677{ 687{
678 dSTACKLEVEL; 688 dSTACKLEVEL;
679 689
680 /* sometimes transfer is only called to set idle_sp */ 690 /* sometimes transfer is only called to set idle_sp */
681 if (!prev->stack->idle_sp) 691 if (flags == TRANSFER_SET_STACKLEVEL)
682 prev->stack->idle_sp = stacklevel; 692 ((coro_stack *)prev)->idle_sp = STACKLEVEL;
683
684 LOCK;
685
686 if (prev != next) 693 else if (prev != next)
687 { 694 {
688 coro_stack *prev_stack = prev->stack; 695 coro_stack *prev__stack;
689 696
690 /* possibly "free" the stack */ 697 LOCK;
691 if (prev_stack->idle_sp == stacklevel) 698
699 if (next->mainstack)
692 { 700 {
693 stack_put (prev_stack); 701 /* coroutine already started */
694 prev->stack = 0; 702 SAVE (prev, flags);
703 LOAD (next);
695 } 704 }
696 705 else
697 if (!next->mainstack)
698 { 706 {
707 /* need to start coroutine */
699 /* first get rid of the old state */ 708 /* first get rid of the old state */
700 SAVE (prev, -1); 709 SAVE (prev, -1);
701 /* setup coroutine call */ 710 /* setup coroutine call */
702 setup_coro (next); 711 setup_coro (next);
712 /* need a stack */
703 next->stack = 0; 713 next->stack = 0;
704 } 714 }
705 else 715
716 prev__stack = prev->stack;
717
718 /* possibly "free" the stack */
719 if (prev__stack->idle_sp == STACKLEVEL)
706 { 720 {
707 SAVE (prev, flags); 721 stack_put (prev__stack);
708 LOAD (next); 722 prev->stack = 0;
709 } 723 }
710 724
711 if (!next->stack) 725 if (!next->stack)
712 stack_get (next); 726 next->stack = stack_get ();
713 727
714 if (prev_stack != next->stack) 728 if (prev__stack != next->stack)
729 {
730 prev__stack->top_env = PL_top_env;
731 PL_top_env = next->stack->top_env;
715 coro_transfer (&prev_stack->cctx, &next->stack->cctx); 732 coro_transfer (&prev__stack->cctx, &next->stack->cctx);
733 }
734
735 free_coro_mortal ();
736
737 UNLOCK;
716 } 738 }
717
718 transfer_tail ();
719} 739}
720 740
721/* use this function pointer to call the above function */ 741/* use this function pointer to call the above function */
722/* this is done to increase chances of the compiler not inlining the call */ 742/* this is done to increase chances of the compiler not inlining the call */
743/* not static to make it even harder for the compiler (and theoretically impossible in most cases */
723void (*coro_state_transfer)(pTHX_ struct coro *prev, struct coro *next, int flags) = transfer_impl; 744void (*coro_state_transfer)(pTHX_ struct coro *prev, struct coro *next, int flags) = transfer_impl;
745
746struct transfer_args
747{
748 struct coro *prev, *next;
749 int flags;
750};
751
752#define TRANSFER(ta) coro_state_transfer ((ta).prev, (ta).next, (ta).flags)
724 753
725static void 754static void
726coro_state_destroy (struct coro *coro) 755coro_state_destroy (struct coro *coro)
727{ 756{
728 if (coro->refcnt--) 757 if (coro->refcnt--)
791 assert (mg->mg_type == PERL_MAGIC_ext); 820 assert (mg->mg_type == PERL_MAGIC_ext);
792 return (struct coro *)mg->mg_ptr; 821 return (struct coro *)mg->mg_ptr;
793} 822}
794 823
795static void 824static void
825prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev, SV *next, int flags)
826{
827 ta->prev = SvSTATE (prev);
828 ta->next = SvSTATE (next);
829 ta->flags = flags;
830}
831
832static void
796api_transfer (pTHX_ SV *prev, SV *next, int flags) 833api_transfer (SV *prev, SV *next, int flags)
797{ 834{
798 coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); 835 dTHX;
836 struct transfer_args ta;
837
838 prepare_transfer (aTHX_ &ta, prev, next, flags);
839 TRANSFER (ta);
799} 840}
800 841
801/** Coro ********************************************************************/ 842/** Coro ********************************************************************/
802 843
803#define PRIO_MAX 3 844#define PRIO_MAX 3
857 coro_enq (aTHX_ SvREFCNT_inc (coro)); 898 coro_enq (aTHX_ SvREFCNT_inc (coro));
858 UNLOCK; 899 UNLOCK;
859} 900}
860 901
861static void 902static void
862api_schedule (void) 903prepare_schedule (aTHX_ struct transfer_args *ta)
863{ 904{
864 dTHX;
865
866 SV *prev, *next; 905 SV *current, *prev, *next;
906
907 LOCK;
908
867 SV *current = GvSV (coro_current); 909 current = GvSV (coro_current);
868 910
869 for (;;) 911 for (;;)
870 { 912 {
871 LOCK; 913 LOCK;
872 914
894 936
895 prev = SvRV (current); 937 prev = SvRV (current);
896 SvRV (current) = next; 938 SvRV (current) = next;
897 939
898 /* free this only after the transfer */ 940 /* free this only after the transfer */
941 free_coro_mortal ();
899 coro_mortal = prev; 942 coro_mortal = prev;
900 943
944 ta->prev = SvSTATE (prev);
945 ta->next = SvSTATE (next);
946 ta->flags = TRANSFER_SAVE_ALL;
947
901 UNLOCK; 948 UNLOCK;
902
903 coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), TRANSFER_SAVE_ALL);
904} 949}
905 950
906static int coro_cede_self; 951static void
952prepare_cede (aTHX_ struct transfer_args *ta)
953{
954 LOCK;
955 coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
956 UNLOCK;
957
958 prepare_schedule (ta);
959}
960
961static void
962api_schedule (void)
963{
964 dTHX;
965 struct transfer_args ta;
966
967 prepare_schedule (&ta);
968 TRANSFER (ta);
969}
907 970
908static void 971static void
909api_cede (void) 972api_cede (void)
910{ 973{
911 dTHX; 974 dTHX;
912 SV *current = SvREFCNT_inc (SvRV (GvSV (coro_current))); 975 struct transfer_args ta;
913 976
914 LOCK; 977 prepare_cede (&ta);
915 978 TRANSFER (ta);
916 if (coro_cede_self)
917 {
918 AV *runqueue = coro_ready [PRIO_MAX - PRIO_MIN];
919 av_unshift (runqueue, 1);
920 av_store (runqueue, 0, current);
921 coro_nready++;
922 coro_cede_self = 0;
923 }
924 else
925 coro_enq (aTHX_ current);
926
927 UNLOCK;
928
929 api_schedule ();
930} 979}
931 980
932MODULE = Coro::State PACKAGE = Coro::State 981MODULE = Coro::State PACKAGE = Coro::State
933 982
934PROTOTYPES: DISABLE 983PROTOTYPES: DISABLE
970 1019
971 hv = newHV (); 1020 hv = newHV ();
972 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; 1021 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;
973 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 1022 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
974 1023
975 av_push (coro->args, newSVsv (RETVAL));
976 for (i = 1; i < items; i++) 1024 for (i = 1; i < items; i++)
977 av_push (coro->args, newSVsv (ST (i))); 1025 av_push (coro->args, newSVsv (ST (i)));
978 1026
979 coro->stack = main_stack; 1027 coro->stack = main_stack;
980 /*coro->mainstack = 0; *//*actual work is done inside transfer */ 1028 /*coro->mainstack = 0; *//*actual work is done inside transfer */
982} 1030}
983 OUTPUT: 1031 OUTPUT:
984 RETVAL 1032 RETVAL
985 1033
986void 1034void
987transfer (prev, next, flags) 1035transfer (...)
988 SV *prev 1036 ALIAS:
989 SV *next 1037 Coro::schedule = 1
990 int flags 1038 Coro::cede = 2
1039 _set_stacklevel = 3
991 CODE: 1040 CODE:
992 PUTBACK;
993 coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
994 SPAGAIN;
995
996int
997prio (Coro::State coro, int newprio = 0)
998 ALIAS:
999 nice = 1
1000 CODE:
1001{ 1041{
1002 RETVAL = coro->prio; 1042 struct transfer_args ta;
1003 1043
1004 if (items > 1) 1044 switch (ix)
1005 { 1045 {
1046 case 0:
1006 if (ix) 1047 if (items != 3)
1007 newprio += coro->prio; 1048 croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items);
1008 1049
1009 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 1050 prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));
1010 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 1051 break;
1011 1052
1012 coro->prio = newprio; 1053 case 1:
1054 prepare_schedule (&ta);
1055 break;
1056
1057 case 2:
1058 prepare_cede (&ta);
1059 break;
1060
1061 case 3:
1062 ta.prev = (struct coro *)INT2PTR (coro_stack *, SvIV (ST (0)));
1063 ta.next = 0;
1064 ta.flags = TRANSFER_SET_STACKLEVEL;
1065 break;
1013 } 1066 }
1014}
1015 1067
1016void 1068 TRANSFER (ta);
1017_clear_idle_sp (Coro::State self) 1069}
1018 CODE:
1019 self->stack->idle_sp = 0;
1020 1070
1021void 1071void
1022_clone_state_from (SV *dst, SV *src) 1072_clone_state_from (SV *dst, SV *src)
1023 CODE: 1073 CODE:
1024{ 1074{
1027 sv_unmagic (SvRV (dst), PERL_MAGIC_ext); 1077 sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
1028 1078
1029 ++coro_src->refcnt; 1079 ++coro_src->refcnt;
1030 sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP; 1080 sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP;
1031} 1081}
1082
1083void
1084_nonlocal_goto (IV nextop)
1085 CODE:
1086 /* uuh, somebody will kill me again for this */
1087 PL_op->op_next = INT2PTR (OP *, nextop);
1032 1088
1033void 1089void
1034_exit (code) 1090_exit (code)
1035 int code 1091 int code
1036 PROTOTYPE: $ 1092 PROTOTYPE: $
1101 1157
1102 GCoroAPI = &coroapi; 1158 GCoroAPI = &coroapi;
1103 sv_setiv (sv, (IV)&coroapi); 1159 sv_setiv (sv, (IV)&coroapi);
1104 SvREADONLY_on (sv); 1160 SvREADONLY_on (sv);
1105 } 1161 }
1162}
1163
1164int
1165prio (Coro::State coro, int newprio = 0)
1166 ALIAS:
1167 nice = 1
1168 CODE:
1169{
1170 RETVAL = coro->prio;
1171
1172 if (items > 1)
1173 {
1174 if (ix)
1175 newprio += coro->prio;
1176
1177 if (newprio < PRIO_MIN) newprio = PRIO_MIN;
1178 if (newprio > PRIO_MAX) newprio = PRIO_MAX;
1179
1180 coro->prio = newprio;
1181 }
1106} 1182}
1107 1183
1108void 1184void
1109ready (SV *self) 1185ready (SV *self)
1110 PROTOTYPE: $ 1186 PROTOTYPE: $
1117 CODE: 1193 CODE:
1118 RETVAL = coro_nready; 1194 RETVAL = coro_nready;
1119 OUTPUT: 1195 OUTPUT:
1120 RETVAL 1196 RETVAL
1121 1197
1122void
1123schedule (...)
1124 PROTOTYPE:
1125 CODE:
1126 api_schedule ();
1127
1128void
1129_set_cede_self ()
1130 CODE:
1131 coro_cede_self = 1;
1132
1133void
1134cede (...)
1135 PROTOTYPE:
1136 CODE:
1137 api_cede ();
1138
1139MODULE = Coro::State PACKAGE = Coro::AIO 1198MODULE = Coro::State PACKAGE = Coro::AIO
1140 1199
1141SV * 1200SV *
1142_get_state () 1201_get_state ()
1143 CODE: 1202 CODE:

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