… | |
… | |
119 | /* cpu state */ |
119 | /* cpu state */ |
120 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
120 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
121 | JMPENV *top_env; |
121 | JMPENV *top_env; |
122 | coro_context cctx; |
122 | coro_context cctx; |
123 | |
123 | |
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|
124 | int inuse; |
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|
125 | |
124 | #if USE_VALGRIND |
126 | #if USE_VALGRIND |
125 | int valgrind_id; |
127 | int valgrind_id; |
126 | #endif |
128 | #endif |
127 | } coro_cctx; |
129 | } coro_cctx; |
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|
130 | |
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|
131 | enum { |
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132 | CF_RUNNING, /* coroutine is running */ |
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|
133 | CF_READY, /* coroutine is ready */ |
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|
134 | }; |
128 | |
135 | |
129 | /* this is a structure representing a perl-level coroutine */ |
136 | /* this is a structure representing a perl-level coroutine */ |
130 | struct coro { |
137 | struct coro { |
131 | /* the c coroutine allocated to this perl coroutine, if any */ |
138 | /* the c coroutine allocated to this perl coroutine, if any */ |
132 | coro_cctx *cctx; |
139 | coro_cctx *cctx; |
133 | |
140 | |
134 | /* data associated with this coroutine (initial args) */ |
141 | /* data associated with this coroutine (initial args) */ |
135 | AV *args; |
142 | AV *args; |
136 | int refcnt; |
143 | int refcnt; |
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|
144 | int flags; |
137 | |
145 | |
138 | /* optionally saved, might be zero */ |
146 | /* optionally saved, might be zero */ |
139 | AV *defav; |
147 | AV *defav; |
140 | SV *defsv; |
148 | SV *defsv; |
141 | SV *errsv; |
149 | SV *errsv; |
… | |
… | |
665 | if (flags == TRANSFER_SET_STACKLEVEL) |
673 | if (flags == TRANSFER_SET_STACKLEVEL) |
666 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
674 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
667 | else if (prev != next) |
675 | else if (prev != next) |
668 | { |
676 | { |
669 | coro_cctx *prev__cctx; |
677 | coro_cctx *prev__cctx; |
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|
678 | |
|
|
679 | if (!prev->cctx) |
|
|
680 | { |
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|
681 | /* create a new empty context */ |
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|
682 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
683 | prev->cctx->inuse = 1; |
|
|
684 | prev->flags |= CF_RUNNING; |
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|
685 | } |
|
|
686 | |
|
|
687 | assert ( prev->flags & CF_RUNNING); |
|
|
688 | assert (!next->flags & CF_RUNNING); |
|
|
689 | |
|
|
690 | prev->flags &= ~CF_RUNNING; |
|
|
691 | next->flags |= CF_RUNNING; |
670 | |
692 | |
671 | LOCK; |
693 | LOCK; |
672 | |
694 | |
673 | if (next->mainstack) |
695 | if (next->mainstack) |
674 | { |
696 | { |
… | |
… | |
682 | /* first get rid of the old state */ |
704 | /* first get rid of the old state */ |
683 | SAVE (prev, -1); |
705 | SAVE (prev, -1); |
684 | /* setup coroutine call */ |
706 | /* setup coroutine call */ |
685 | setup_coro (next); |
707 | setup_coro (next); |
686 | /* need a stack */ |
708 | /* need a stack */ |
|
|
709 | assert (!next->stack); |
687 | next->cctx = 0; |
710 | next->cctx = 0; |
688 | } |
711 | } |
689 | |
|
|
690 | if (!prev->cctx) |
|
|
691 | /* create a new empty context */ |
|
|
692 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
693 | |
712 | |
694 | prev__cctx = prev->cctx; |
713 | prev__cctx = prev->cctx; |
695 | |
714 | |
696 | /* possibly "free" the cctx */ |
715 | /* possibly "free" the cctx */ |
697 | if (prev__cctx->idle_sp == STACKLEVEL) |
716 | if (prev__cctx->idle_sp == STACKLEVEL) |
… | |
… | |
704 | if (!next->cctx) |
723 | if (!next->cctx) |
705 | next->cctx = cctx_get (); |
724 | next->cctx = cctx_get (); |
706 | |
725 | |
707 | if (prev__cctx != next->cctx) |
726 | if (prev__cctx != next->cctx) |
708 | { |
727 | { |
|
|
728 | assert ( prev__cctx->inuse); |
|
|
729 | assert (!next->cctx->inuse); |
|
|
730 | |
|
|
731 | prev__cctx->inuse = 0; |
|
|
732 | next->cctx->inuse = 1; |
|
|
733 | |
709 | prev__cctx->top_env = PL_top_env; |
734 | prev__cctx->top_env = PL_top_env; |
710 | PL_top_env = next->cctx->top_env; |
735 | PL_top_env = next->cctx->top_env; |
711 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
736 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
712 | } |
737 | } |
713 | |
738 | |
… | |
… | |
867 | } |
892 | } |
868 | |
893 | |
869 | return 0; |
894 | return 0; |
870 | } |
895 | } |
871 | |
896 | |
872 | static void |
897 | static int |
873 | api_ready (SV *coro) |
898 | api_ready (SV *coro_sv) |
874 | { |
899 | { |
875 | dTHX; |
900 | struct coro *coro; |
876 | |
901 | |
877 | if (SvROK (coro)) |
902 | if (SvROK (coro_sv)) |
878 | coro = SvRV (coro); |
903 | coro_sv = SvRV (coro_sv); |
|
|
904 | |
|
|
905 | coro = SvSTATE (coro_sv); |
|
|
906 | if (coro->flags & CF_READY) |
|
|
907 | return 0; |
|
|
908 | |
|
|
909 | coro->flags |= CF_READY; |
879 | |
910 | |
880 | LOCK; |
911 | LOCK; |
881 | coro_enq (SvREFCNT_inc (coro)); |
912 | coro_enq (SvREFCNT_inc (coro_sv)); |
882 | UNLOCK; |
913 | UNLOCK; |
|
|
914 | |
|
|
915 | return 1; |
|
|
916 | } |
|
|
917 | |
|
|
918 | static int |
|
|
919 | api_is_ready (SV *coro_sv) |
|
|
920 | { |
|
|
921 | struct coro *coro; |
|
|
922 | |
|
|
923 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
883 | } |
924 | } |
884 | |
925 | |
885 | static void |
926 | static void |
886 | prepare_schedule (struct transfer_args *ta) |
927 | prepare_schedule (struct transfer_args *ta) |
887 | { |
928 | { |
… | |
… | |
923 | coro_mortal = prev; |
964 | coro_mortal = prev; |
924 | |
965 | |
925 | ta->prev = SvSTATE (prev); |
966 | ta->prev = SvSTATE (prev); |
926 | ta->next = SvSTATE (next); |
967 | ta->next = SvSTATE (next); |
927 | ta->flags = TRANSFER_SAVE_ALL; |
968 | ta->flags = TRANSFER_SAVE_ALL; |
|
|
969 | |
|
|
970 | ta->next->flags &= ~CF_READY; |
928 | } |
971 | } |
929 | |
972 | |
930 | static void |
973 | static void |
931 | prepare_cede (struct transfer_args *ta) |
974 | prepare_cede (struct transfer_args *ta) |
932 | { |
975 | { |
933 | LOCK; |
976 | api_ready (GvSV (coro_current)); |
934 | coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current)))); |
|
|
935 | UNLOCK; |
|
|
936 | |
977 | |
937 | prepare_schedule (ta); |
978 | prepare_schedule (ta); |
938 | } |
979 | } |
939 | |
980 | |
940 | static void |
981 | static void |
… | |
… | |
1126 | SV *sv = perl_get_sv("Coro::API", 1); |
1167 | SV *sv = perl_get_sv("Coro::API", 1); |
1127 | |
1168 | |
1128 | coroapi.schedule = api_schedule; |
1169 | coroapi.schedule = api_schedule; |
1129 | coroapi.cede = api_cede; |
1170 | coroapi.cede = api_cede; |
1130 | coroapi.ready = api_ready; |
1171 | coroapi.ready = api_ready; |
|
|
1172 | coroapi.is_ready = api_is_ready; |
1131 | coroapi.nready = &coro_nready; |
1173 | coroapi.nready = &coro_nready; |
1132 | coroapi.current = coro_current; |
1174 | coroapi.current = coro_current; |
1133 | |
1175 | |
1134 | GCoroAPI = &coroapi; |
1176 | GCoroAPI = &coroapi; |
1135 | sv_setiv (sv, (IV)&coroapi); |
1177 | sv_setiv (sv, (IV)&coroapi); |
… | |
… | |
1155 | |
1197 | |
1156 | coro->prio = newprio; |
1198 | coro->prio = newprio; |
1157 | } |
1199 | } |
1158 | } |
1200 | } |
1159 | |
1201 | |
1160 | void |
1202 | SV * |
1161 | ready (SV *self) |
1203 | ready (SV *self) |
1162 | PROTOTYPE: $ |
1204 | PROTOTYPE: $ |
1163 | CODE: |
1205 | CODE: |
1164 | api_ready (self); |
1206 | RETVAL = boolSV (api_ready (self)); |
|
|
1207 | OUTPUT: |
|
|
1208 | RETVAL |
|
|
1209 | |
|
|
1210 | SV * |
|
|
1211 | is_ready (SV *self) |
|
|
1212 | PROTOTYPE: $ |
|
|
1213 | CODE: |
|
|
1214 | RETVAL = boolSV (api_is_ready (self)); |
|
|
1215 | OUTPUT: |
|
|
1216 | RETVAL |
1165 | |
1217 | |
1166 | int |
1218 | int |
1167 | nready (...) |
1219 | nready (...) |
1168 | PROTOTYPE: |
1220 | PROTOTYPE: |
1169 | CODE: |
1221 | CODE: |