… | |
… | |
145 | I32 retstack_max; |
145 | I32 retstack_max; |
146 | PMOP *curpm; |
146 | PMOP *curpm; |
147 | COP *curcop; |
147 | COP *curcop; |
148 | JMPENV *top_env; |
148 | JMPENV *top_env; |
149 | |
149 | |
|
|
150 | /* coro process data */ |
|
|
151 | int prio; |
|
|
152 | |
150 | /* data associated with this coroutine (initial args) */ |
153 | /* data associated with this coroutine (initial args) */ |
151 | AV *args; |
154 | AV *args; |
|
|
155 | int refcnt; |
152 | }; |
156 | }; |
153 | |
157 | |
154 | typedef struct coro *Coro__State; |
158 | typedef struct coro *Coro__State; |
155 | typedef struct coro *Coro__State_or_hashref; |
159 | typedef struct coro *Coro__State_or_hashref; |
156 | |
160 | |
… | |
… | |
667 | CALLRUNOPS(aTHX); |
671 | CALLRUNOPS(aTHX); |
668 | |
672 | |
669 | abort (); |
673 | abort (); |
670 | } |
674 | } |
671 | |
675 | |
|
|
676 | /* never call directly, always through the coro_state_transfer global variable */ |
672 | static void |
677 | static void |
673 | transfer (pTHX_ struct coro *prev, struct coro *next, int flags) |
678 | transfer_impl (pTHX_ struct coro *prev, struct coro *next, int flags) |
674 | { |
679 | { |
675 | dSTACKLEVEL; |
680 | dSTACKLEVEL; |
676 | |
681 | |
677 | if (prev != next) |
682 | if (prev != next) |
678 | { |
683 | { |
… | |
… | |
771 | coro_mortal = 0; |
776 | coro_mortal = 0; |
772 | } |
777 | } |
773 | UNLOCK; |
778 | UNLOCK; |
774 | } |
779 | } |
775 | |
780 | |
|
|
781 | /* use this function pointer to call the above function */ |
|
|
782 | /* this is done to increase chances of the compiler not inlining the call */ |
|
|
783 | void (*coro_state_transfer)(pTHX_ struct coro *prev, struct coro *next, int flags) = transfer_impl; |
|
|
784 | |
776 | #define SV_CORO(sv,func) \ |
785 | #define SV_CORO(sv,func) \ |
777 | do { \ |
786 | do { \ |
778 | if (SvROK (sv)) \ |
787 | if (SvROK (sv)) \ |
779 | sv = SvRV (sv); \ |
788 | sv = SvRV (sv); \ |
780 | \ |
789 | \ |
781 | if (SvTYPE (sv) == SVt_PVHV) \ |
790 | if (SvTYPE (sv) == SVt_PVHV && SvSTASH (sv) != coro_state_stash) \ |
782 | { \ |
791 | { \ |
783 | HE *he = hv_fetch_ent ((HV *)sv, ucoro_state_sv, 0, ucoro_state_hash); \ |
792 | HE *he = hv_fetch_ent ((HV *)sv, ucoro_state_sv, 0, ucoro_state_hash); \ |
784 | \ |
793 | \ |
785 | if (!he) \ |
794 | if (!he) \ |
786 | croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \ |
795 | croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \ |
… | |
… | |
792 | if (!SvOBJECT (sv) || SvSTASH (sv) != coro_state_stash) \ |
801 | if (!SvOBJECT (sv) || SvSTASH (sv) != coro_state_stash) \ |
793 | croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \ |
802 | croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \ |
794 | \ |
803 | \ |
795 | } while(0) |
804 | } while(0) |
796 | |
805 | |
797 | #define SvSTATE(sv) INT2PTR (struct coro *, SvIV (sv)) |
806 | static void |
|
|
807 | coro_state_destroy (struct coro *coro) |
|
|
808 | { |
|
|
809 | if (coro->refcnt--) |
|
|
810 | return; |
798 | |
811 | |
|
|
812 | if (coro->mainstack && coro->mainstack != main_mainstack) |
|
|
813 | { |
|
|
814 | struct coro temp; |
|
|
815 | |
|
|
816 | SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL); |
|
|
817 | LOAD (aTHX_ coro); |
|
|
818 | |
|
|
819 | destroy_stacks (aTHX); |
|
|
820 | |
|
|
821 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
|
|
822 | |
|
|
823 | coro->mainstack = 0; |
|
|
824 | } |
|
|
825 | |
|
|
826 | deallocate_stack (coro); |
|
|
827 | SvREFCNT_dec (coro->args); |
|
|
828 | Safefree (coro); |
|
|
829 | } |
|
|
830 | |
799 | static void |
831 | static int |
|
|
832 | coro_state_clear (SV *sv, MAGIC *mg) |
|
|
833 | { |
|
|
834 | struct coro *coro = (struct coro *)mg->mg_ptr; |
|
|
835 | mg->mg_ptr = 0; |
|
|
836 | |
|
|
837 | coro_state_destroy (coro); |
|
|
838 | |
|
|
839 | return 0; |
|
|
840 | } |
|
|
841 | |
|
|
842 | static int |
|
|
843 | coro_state_dup (MAGIC *mg, CLONE_PARAMS *params) |
|
|
844 | { |
|
|
845 | struct coro *coro = (struct coro *)mg->mg_ptr; |
|
|
846 | |
|
|
847 | ++coro->refcnt; |
|
|
848 | |
|
|
849 | return 0; |
|
|
850 | } |
|
|
851 | |
|
|
852 | static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 }; |
|
|
853 | |
|
|
854 | static struct coro * |
|
|
855 | SvSTATE (SV *coro) |
|
|
856 | { |
|
|
857 | MAGIC *mg = SvMAGIC (SvROK (coro) ? SvRV (coro) : coro); |
|
|
858 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
859 | return (struct coro *)mg->mg_ptr; |
|
|
860 | } |
|
|
861 | |
|
|
862 | static void |
800 | api_transfer(pTHX_ SV *prev, SV *next, int flags) |
863 | api_transfer (pTHX_ SV *prev, SV *next, int flags) |
801 | { |
864 | { |
802 | SV_CORO (prev, "Coro::transfer"); |
865 | SV_CORO (prev, "Coro::transfer"); |
803 | SV_CORO (next, "Coro::transfer"); |
866 | SV_CORO (next, "Coro::transfer"); |
804 | |
867 | |
805 | transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
868 | coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
806 | } |
869 | } |
807 | |
870 | |
808 | /** Coro ********************************************************************/ |
871 | /** Coro ********************************************************************/ |
809 | |
872 | |
810 | #define PRIO_MAX 3 |
873 | #define PRIO_MAX 3 |
… | |
… | |
814 | #define PRIO_IDLE -3 |
877 | #define PRIO_IDLE -3 |
815 | #define PRIO_MIN -4 |
878 | #define PRIO_MIN -4 |
816 | |
879 | |
817 | /* for Coro.pm */ |
880 | /* for Coro.pm */ |
818 | static GV *coro_current, *coro_idle; |
881 | static GV *coro_current, *coro_idle; |
819 | static AV *coro_ready[PRIO_MAX-PRIO_MIN+1]; |
882 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
820 | static int coro_nready; |
883 | static int coro_nready; |
821 | |
884 | |
822 | static void |
885 | static void |
823 | coro_enq (pTHX_ SV *sv) |
886 | coro_enq (pTHX_ SV *sv) |
824 | { |
887 | { |
825 | SV **xprio; |
|
|
826 | int prio; |
888 | int prio; |
827 | |
889 | |
828 | if (SvTYPE (sv) != SVt_PVHV) |
890 | if (SvTYPE (sv) != SVt_PVHV) |
829 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
891 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
830 | |
892 | |
831 | xprio = hv_fetch ((HV *)sv, "prio", 4, 0); |
893 | { |
832 | prio = xprio ? SvIV (*xprio) : PRIO_NORMAL; |
894 | SV *coro = sv; |
833 | |
895 | SV_CORO (coro, "omg"); |
834 | prio = prio > PRIO_MAX ? PRIO_MAX |
896 | prio = SvSTATE (coro)->prio; |
835 | : prio < PRIO_MIN ? PRIO_MIN |
897 | } |
836 | : prio; |
|
|
837 | |
898 | |
838 | av_push (coro_ready [prio - PRIO_MIN], sv); |
899 | av_push (coro_ready [prio - PRIO_MIN], sv); |
839 | coro_nready++; |
900 | coro_nready++; |
840 | } |
901 | } |
841 | |
902 | |
… | |
… | |
847 | min_prio -= PRIO_MIN; |
908 | min_prio -= PRIO_MIN; |
848 | if (min_prio < 0) |
909 | if (min_prio < 0) |
849 | min_prio = 0; |
910 | min_prio = 0; |
850 | |
911 | |
851 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
912 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
852 | if (AvFILLp (coro_ready[prio]) >= 0) |
913 | if (AvFILLp (coro_ready [prio]) >= 0) |
853 | { |
914 | { |
854 | coro_nready--; |
915 | coro_nready--; |
855 | return av_shift (coro_ready[prio]); |
916 | return av_shift (coro_ready [prio]); |
856 | } |
917 | } |
857 | |
918 | |
858 | return 0; |
919 | return 0; |
859 | } |
920 | } |
860 | |
921 | |
… | |
… | |
894 | |
955 | |
895 | SV_CORO (next, "Coro::schedule"); |
956 | SV_CORO (next, "Coro::schedule"); |
896 | |
957 | |
897 | UNLOCK; |
958 | UNLOCK; |
898 | |
959 | |
899 | transfer (aTHX_ SvSTATE (prev), SvSTATE (next), |
960 | coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), |
900 | TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK); |
961 | TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK); |
901 | } |
962 | } |
902 | |
963 | |
903 | static void |
964 | static void |
904 | api_cede (void) |
965 | api_cede (void) |
905 | { |
966 | { |
… | |
… | |
912 | api_schedule (); |
973 | api_schedule (); |
913 | } |
974 | } |
914 | |
975 | |
915 | MODULE = Coro::State PACKAGE = Coro::State |
976 | MODULE = Coro::State PACKAGE = Coro::State |
916 | |
977 | |
917 | PROTOTYPES: ENABLE |
978 | PROTOTYPES: DISABLE |
918 | |
979 | |
919 | BOOT: |
980 | BOOT: |
920 | { /* {} necessary for stoopid perl-5.6.x */ |
981 | { /* {} necessary for stoopid perl-5.6.x */ |
921 | #ifdef USE_ITHREADS |
982 | #ifdef USE_ITHREADS |
922 | MUTEX_INIT (&coro_mutex); |
983 | MUTEX_INIT (&coro_mutex); |
… | |
… | |
934 | |
995 | |
935 | main_mainstack = PL_mainstack; |
996 | main_mainstack = PL_mainstack; |
936 | |
997 | |
937 | coroapi.ver = CORO_API_VERSION; |
998 | coroapi.ver = CORO_API_VERSION; |
938 | coroapi.transfer = api_transfer; |
999 | coroapi.transfer = api_transfer; |
939 | } |
|
|
940 | |
1000 | |
941 | Coro::State |
1001 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
942 | _newprocess(args) |
1002 | } |
943 | SV * args |
1003 | |
944 | PROTOTYPE: $ |
1004 | SV * |
|
|
1005 | new (char *klass, ...) |
945 | CODE: |
1006 | CODE: |
946 | Coro__State coro; |
1007 | { |
|
|
1008 | struct coro *coro; |
|
|
1009 | HV *hv; |
|
|
1010 | int i; |
947 | |
1011 | |
948 | if (!SvROK (args) || SvTYPE (SvRV (args)) != SVt_PVAV) |
|
|
949 | croak ("Coro::State::_newprocess expects an arrayref"); |
|
|
950 | |
|
|
951 | Newz (0, coro, 1, struct coro); |
1012 | Newz (0, coro, 1, struct coro); |
|
|
1013 | coro->args = newAV (); |
952 | |
1014 | |
953 | coro->args = (AV *)SvREFCNT_inc (SvRV (args)); |
1015 | for (i = 1; i < items; i++) |
|
|
1016 | av_push (coro->args, newSVsv (ST (i))); |
|
|
1017 | |
954 | /*coro->mainstack = 0; *//*actual work is done inside transfer */ |
1018 | /*coro->mainstack = 0; *//*actual work is done inside transfer */ |
955 | /*coro->stack = 0;*/ |
1019 | /*coro->stack = 0;*/ |
956 | |
1020 | |
957 | RETVAL = coro; |
1021 | hv = newHV (); |
|
|
1022 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
|
|
1023 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
|
|
1024 | } |
958 | OUTPUT: |
1025 | OUTPUT: |
959 | RETVAL |
1026 | RETVAL |
960 | |
1027 | |
961 | void |
1028 | void |
962 | transfer(prev, next, flags) |
1029 | transfer(prev, next, flags) |
963 | SV *prev |
1030 | SV *prev |
964 | SV *next |
1031 | SV *next |
965 | int flags |
1032 | int flags |
966 | PROTOTYPE: @ |
|
|
967 | CODE: |
1033 | CODE: |
968 | PUTBACK; |
1034 | PUTBACK; |
969 | SV_CORO (next, "Coro::transfer"); |
1035 | SV_CORO (next, "Coro::transfer"); |
970 | SV_CORO (prev, "Coro::transfer"); |
1036 | SV_CORO (prev, "Coro::transfer"); |
971 | transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
1037 | coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
972 | SPAGAIN; |
1038 | SPAGAIN; |
973 | |
1039 | |
|
|
1040 | int |
|
|
1041 | prio (Coro::State coro, int newprio = 0) |
|
|
1042 | ALIAS: |
|
|
1043 | nice = 1 |
|
|
1044 | CODE: |
|
|
1045 | { |
|
|
1046 | RETVAL = coro->prio; |
|
|
1047 | |
|
|
1048 | if (items > 1) |
|
|
1049 | { |
|
|
1050 | if (ix) |
|
|
1051 | newprio += coro->prio; |
|
|
1052 | |
|
|
1053 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
|
|
1054 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
|
|
1055 | |
|
|
1056 | coro->prio = newprio; |
|
|
1057 | } |
|
|
1058 | } |
|
|
1059 | |
974 | void |
1060 | void |
975 | DESTROY(coro) |
1061 | _clone_state_from (SV *dst, SV *src) |
976 | Coro::State coro |
1062 | CODE: |
977 | CODE: |
1063 | { |
|
|
1064 | struct coro *coro_src = SvSTATE (src); |
978 | |
1065 | |
979 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1066 | sv_unmagic (SvRV (dst), PERL_MAGIC_ext); |
980 | { |
|
|
981 | struct coro temp; |
|
|
982 | |
1067 | |
983 | PUTBACK; |
1068 | ++coro_src->refcnt; |
984 | SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL); |
1069 | sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP; |
985 | LOAD (aTHX_ coro); |
1070 | } |
986 | SPAGAIN; |
|
|
987 | |
|
|
988 | destroy_stacks (aTHX); |
|
|
989 | |
|
|
990 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
|
|
991 | SPAGAIN; |
|
|
992 | |
|
|
993 | coro->mainstack = 0; |
|
|
994 | } |
|
|
995 | |
|
|
996 | deallocate_stack (coro); |
|
|
997 | SvREFCNT_dec (coro->args); |
|
|
998 | Safefree (coro); |
|
|
999 | |
1071 | |
1000 | void |
1072 | void |
1001 | _exit(code) |
1073 | _exit (code) |
1002 | int code |
1074 | int code |
1003 | PROTOTYPE: $ |
1075 | PROTOTYPE: $ |
1004 | CODE: |
1076 | CODE: |
1005 | _exit (code); |
1077 | _exit (code); |
1006 | |
1078 | |
1007 | MODULE = Coro::State PACKAGE = Coro::Cont |
1079 | MODULE = Coro::State PACKAGE = Coro::Cont |
1008 | |
1080 | |
1009 | void |
1081 | void |
1010 | yield(...) |
1082 | yield (...) |
1011 | PROTOTYPE: @ |
1083 | PROTOTYPE: @ |
1012 | CODE: |
1084 | CODE: |
1013 | SV *yieldstack; |
1085 | SV *yieldstack; |
1014 | SV *sv; |
1086 | SV *sv; |
1015 | AV *defav = GvAV (PL_defgv); |
1087 | AV *defav = GvAV (PL_defgv); |
… | |
… | |
1026 | av_fill (defav, items - 1); |
1098 | av_fill (defav, items - 1); |
1027 | while (items--) |
1099 | while (items--) |
1028 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
1100 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
1029 | |
1101 | |
1030 | sv = av_pop ((AV *)SvRV (yieldstack)); |
1102 | sv = av_pop ((AV *)SvRV (yieldstack)); |
1031 | prev = INT2PTR (struct coro *, SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 0, 0)))); |
1103 | prev = SvSTATE ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 0, 0))); |
1032 | next = INT2PTR (struct coro *, SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0)))); |
1104 | next = SvSTATE ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0))); |
1033 | SvREFCNT_dec (sv); |
1105 | SvREFCNT_dec (sv); |
1034 | |
1106 | |
1035 | transfer (aTHX_ prev, next, 0); |
1107 | coro_state_transfer (aTHX_ prev, next, 0); |
1036 | |
1108 | |
1037 | MODULE = Coro::State PACKAGE = Coro |
1109 | MODULE = Coro::State PACKAGE = Coro |
1038 | |
1110 | |
1039 | BOOT: |
1111 | BOOT: |
1040 | { |
1112 | { |
… | |
… | |
1070 | } |
1142 | } |
1071 | |
1143 | |
1072 | #if !PERL_MICRO |
1144 | #if !PERL_MICRO |
1073 | |
1145 | |
1074 | void |
1146 | void |
1075 | ready(self) |
1147 | ready (self) |
1076 | SV * self |
1148 | SV * self |
1077 | PROTOTYPE: $ |
1149 | PROTOTYPE: $ |
1078 | CODE: |
1150 | CODE: |
1079 | api_ready (self); |
1151 | api_ready (self); |
1080 | |
1152 | |
1081 | #endif |
1153 | #endif |
1082 | |
1154 | |
1083 | int |
1155 | int |
1084 | nready(...) |
1156 | nready (...) |
1085 | PROTOTYPE: |
1157 | PROTOTYPE: |
1086 | CODE: |
1158 | CODE: |
1087 | RETVAL = coro_nready; |
1159 | RETVAL = coro_nready; |
1088 | OUTPUT: |
1160 | OUTPUT: |
1089 | RETVAL |
1161 | RETVAL |
1090 | |
1162 | |
1091 | void |
1163 | void |
1092 | schedule(...) |
1164 | schedule (...) |
1093 | PROTOTYPE: |
1165 | PROTOTYPE: |
1094 | CODE: |
1166 | CODE: |
1095 | api_schedule (); |
1167 | api_schedule (); |
1096 | |
1168 | |
1097 | void |
1169 | void |
1098 | cede(...) |
1170 | cede (...) |
1099 | PROTOTYPE: |
1171 | PROTOTYPE: |
1100 | CODE: |
1172 | CODE: |
1101 | api_cede (); |
1173 | api_cede (); |
1102 | |
1174 | |
1103 | # and these are hacks |
1175 | # and these are hacks |