| … | |
… | |
| 7 | #include <signal.h> |
7 | #include <signal.h> |
| 8 | |
8 | |
| 9 | #ifdef HAVE_MMAP |
9 | #ifdef HAVE_MMAP |
| 10 | # include <unistd.h> |
10 | # include <unistd.h> |
| 11 | # include <sys/mman.h> |
11 | # include <sys/mman.h> |
| 12 | # ifndef MAP_ANON |
|
|
| 13 | # ifdef MAP_ANONYMOUS |
12 | # ifndef MAP_ANONYMOUS |
| 14 | # define MAP_ANON MAP_ANONYMOUS |
13 | # ifdef MAP_ANON |
|
|
14 | # define MAP_ANONYMOUS MAP_ANON |
| 15 | # else |
15 | # else |
| 16 | # undef HAVE_MMAP |
16 | # undef HAVE_MMAP |
| 17 | # endif |
17 | # endif |
| 18 | # endif |
18 | # endif |
| 19 | #endif |
19 | #endif |
| … | |
… | |
| 56 | |
56 | |
| 57 | /* optionally saved, might be zero */ |
57 | /* optionally saved, might be zero */ |
| 58 | AV *defav; |
58 | AV *defav; |
| 59 | SV *defsv; |
59 | SV *defsv; |
| 60 | SV *errsv; |
60 | SV *errsv; |
|
|
61 | /* TODO: PL_pmop might be nice && effortless to save. */ |
| 61 | |
62 | |
| 62 | /* saved global state not related to stacks */ |
63 | /* saved global state not related to stacks */ |
| 63 | U8 dowarn; |
64 | U8 dowarn; |
| 64 | I32 in_eval; |
65 | I32 in_eval; |
| 65 | |
66 | |
| … | |
… | |
| 101 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
102 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
| 102 | static HV *coro_state_stash; |
103 | static HV *coro_state_stash; |
| 103 | static SV *ucoro_state_sv; |
104 | static SV *ucoro_state_sv; |
| 104 | static U32 ucoro_state_hash; |
105 | static U32 ucoro_state_hash; |
| 105 | static HV *padlist_cache; |
106 | static HV *padlist_cache; |
|
|
107 | static SV *coro_mortal; /* will be freed after next transfer */ |
| 106 | |
108 | |
| 107 | /* mostly copied from op.c:cv_clone2 */ |
109 | /* mostly copied from op.c:cv_clone2 */ |
| 108 | STATIC AV * |
110 | STATIC AV * |
| 109 | clone_padlist (AV *protopadlist) |
111 | clone_padlist (AV *protopadlist) |
| 110 | { |
112 | { |
| … | |
… | |
| 543 | stack->refcnt = 1; |
545 | stack->refcnt = 1; |
| 544 | stack->usecnt = 1; |
546 | stack->usecnt = 1; |
| 545 | stack->gencnt = ctx->gencnt = 0; |
547 | stack->gencnt = ctx->gencnt = 0; |
| 546 | if (alloc) |
548 | if (alloc) |
| 547 | { |
549 | { |
| 548 | #ifdef HAVE_MMAP |
550 | #if HAVE_MMAP |
| 549 | stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */ |
551 | stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */ |
| 550 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, 0, 0); |
552 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
| 551 | if (stack->sptr == (void *)-1) |
553 | if (stack->sptr == (void *)-1) |
| 552 | #endif |
554 | #endif |
| 553 | { |
555 | { |
| 554 | /*FIXME*//*D*//* reasonable stack size! */ |
556 | /*FIXME*//*D*//* reasonable stack size! */ |
| 555 | stack->ssize = -4096 * sizeof (long); |
557 | stack->ssize = -4096 * sizeof (long); |
| … | |
… | |
| 752 | * we switched the c stack or not. that's why i use a global |
754 | * we switched the c stack or not. that's why i use a global |
| 753 | * variable, that should become thread-specific at one point. |
755 | * variable, that should become thread-specific at one point. |
| 754 | */ |
756 | */ |
| 755 | xnext->cursp = stacklevel; |
757 | xnext->cursp = stacklevel; |
| 756 | } |
758 | } |
| 757 | } |
|
|
| 758 | |
759 | |
| 759 | static struct coro * |
760 | if (coro_mortal) |
| 760 | sv_to_coro (SV *arg, const char *funcname, const char *varname) |
761 | { |
| 761 | { |
762 | SvREFCNT_dec (coro_mortal); |
| 762 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVHV) |
763 | coro_mortal = 0; |
| 763 | { |
764 | } |
|
|
765 | } |
|
|
766 | |
|
|
767 | #define SV_CORO(sv,func) \ |
|
|
768 | do { \ |
|
|
769 | if (SvROK (sv)) \ |
|
|
770 | sv = SvRV (sv); \ |
|
|
771 | \ |
|
|
772 | if (SvTYPE(sv) == SVt_PVHV) \ |
|
|
773 | { \ |
| 764 | HE *he = hv_fetch_ent((HV *)SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash); |
774 | HE *he = hv_fetch_ent((HV *)sv, ucoro_state_sv, 0, ucoro_state_hash); \ |
| 765 | |
775 | \ |
| 766 | if (!he) |
776 | if (!he) \ |
| 767 | croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", funcname, varname); |
777 | croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \ |
| 768 | |
778 | \ |
| 769 | arg = HeVAL(he); |
779 | (sv) = SvRV (HeVAL(he)); \ |
| 770 | } |
780 | } \ |
| 771 | |
781 | \ |
| 772 | /* must also be changed inside Coro::Cont::yield */ |
782 | /* must also be changed inside Coro::Cont::yield */ \ |
| 773 | if (SvROK(arg) && SvOBJECT(SvRV(arg)) |
783 | if (!SvOBJECT(sv) || SvSTASH(sv) != coro_state_stash) \ |
| 774 | && SvSTASH(SvRV(arg)) == coro_state_stash) |
|
|
| 775 | return (struct coro *) SvIV((SV*)SvRV(arg)); |
|
|
| 776 | |
|
|
| 777 | croak ("%s() -- %s is not (and contains not) a Coro::State object", funcname, varname); |
784 | croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \ |
| 778 | /*NORETURN*/ |
785 | \ |
| 779 | } |
786 | } while(0) |
|
|
787 | |
|
|
788 | #define SvSTATE(sv) (struct coro *)SvIV (sv) |
| 780 | |
789 | |
| 781 | static void |
790 | static void |
| 782 | api_transfer(pTHX_ SV *prev, SV *next, int flags) |
791 | api_transfer(pTHX_ SV *prev, SV *next, int flags) |
| 783 | { |
792 | { |
| 784 | transfer(aTHX_ |
793 | SV_CORO (prev, "Coro::transfer"); |
| 785 | sv_to_coro (prev, "Coro::transfer", "prev"), |
794 | SV_CORO (next, "Coro::transfer"); |
| 786 | sv_to_coro (next, "Coro::transfer", "next"), |
795 | |
| 787 | flags); |
796 | transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags); |
| 788 | } |
797 | } |
| 789 | |
798 | |
| 790 | /** Coro ********************************************************************/ |
799 | /** Coro ********************************************************************/ |
| 791 | |
800 | |
| 792 | #define PRIO_MAX 3 |
801 | #define PRIO_MAX 3 |
| … | |
… | |
| 802 | static int coro_nready; |
811 | static int coro_nready; |
| 803 | |
812 | |
| 804 | static void |
813 | static void |
| 805 | coro_enq (SV *sv) |
814 | coro_enq (SV *sv) |
| 806 | { |
815 | { |
| 807 | if (SvROK (sv)) |
|
|
| 808 | { |
|
|
| 809 | SV *hv = SvRV (sv); |
|
|
| 810 | if (SvTYPE (hv) == SVt_PVHV) |
816 | if (SvTYPE (sv) == SVt_PVHV) |
| 811 | { |
817 | { |
| 812 | SV **xprio = hv_fetch ((HV *)hv, "prio", 4, 0); |
818 | SV **xprio = hv_fetch ((HV *)sv, "prio", 4, 0); |
| 813 | int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL; |
819 | int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL; |
| 814 | |
820 | |
| 815 | prio = prio > PRIO_MAX ? PRIO_MAX |
821 | prio = prio > PRIO_MAX ? PRIO_MAX |
| 816 | : prio < PRIO_MIN ? PRIO_MIN |
822 | : prio < PRIO_MIN ? PRIO_MIN |
| 817 | : prio; |
823 | : prio; |
| 818 | |
824 | |
| 819 | av_push (coro_ready [prio - PRIO_MIN], sv); |
825 | av_push (coro_ready [prio - PRIO_MIN], sv); |
| 820 | coro_nready++; |
826 | coro_nready++; |
| 821 | |
827 | |
| 822 | return; |
828 | return; |
| 823 | } |
|
|
| 824 | } |
829 | } |
| 825 | |
830 | |
| 826 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
831 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
| 827 | } |
832 | } |
| 828 | |
833 | |
| … | |
… | |
| 846 | } |
851 | } |
| 847 | |
852 | |
| 848 | static void |
853 | static void |
| 849 | api_ready (SV *coro) |
854 | api_ready (SV *coro) |
| 850 | { |
855 | { |
|
|
856 | if (SvROK (coro)) |
|
|
857 | coro = SvRV (coro); |
|
|
858 | |
| 851 | coro_enq (SvREFCNT_inc (coro)); |
859 | coro_enq (SvREFCNT_inc (coro)); |
| 852 | } |
860 | } |
| 853 | |
861 | |
| 854 | static void |
862 | static void |
| 855 | api_schedule (int cede) |
863 | api_schedule (void) |
| 856 | { |
864 | { |
| 857 | SV *prev, *next; |
865 | SV *prev, *next; |
| 858 | |
866 | |
| 859 | prev = GvSV (coro_current); |
867 | prev = SvRV (GvSV (coro_current)); |
| 860 | |
|
|
| 861 | if (cede) |
|
|
| 862 | coro_enq (SvREFCNT_inc (prev)); |
|
|
| 863 | |
|
|
| 864 | next = coro_deq (PRIO_MIN); |
868 | next = coro_deq (PRIO_MIN); |
| 865 | |
869 | |
| 866 | if (!next) |
870 | if (!next) |
| 867 | next = SvREFCNT_inc (GvSV (coro_idle)); |
871 | next = SvREFCNT_inc (SvRV (GvSV (coro_idle))); |
| 868 | |
872 | |
| 869 | GvSV (coro_current) = SvREFCNT_inc (next); |
873 | coro_mortal = prev; |
| 870 | transfer (aTHX_ |
874 | SV_CORO (prev, "Coro::schedule"); |
| 871 | sv_to_coro (prev, "Coro::schedule", "current coroutine"), |
875 | |
| 872 | sv_to_coro (next, "Coro::schedule", "next coroutine"), |
876 | SvRV (GvSV (coro_current)) = next; |
|
|
877 | |
|
|
878 | SV_CORO (next, "Coro::schedule"); |
|
|
879 | |
|
|
880 | transfer (aTHX_ SvSTATE (prev), SvSTATE (next), |
| 873 | TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK); |
881 | TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK); |
| 874 | SvREFCNT_dec (next); |
882 | } |
| 875 | SvREFCNT_dec (prev); |
883 | |
|
|
884 | static void |
|
|
885 | api_cede (void) |
|
|
886 | { |
|
|
887 | coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current)))); |
|
|
888 | |
|
|
889 | api_schedule (); |
| 876 | } |
890 | } |
| 877 | |
891 | |
| 878 | MODULE = Coro::State PACKAGE = Coro::State |
892 | MODULE = Coro::State PACKAGE = Coro::State |
| 879 | |
893 | |
| 880 | PROTOTYPES: ENABLE |
894 | PROTOTYPES: ENABLE |
| … | |
… | |
| 919 | OUTPUT: |
933 | OUTPUT: |
| 920 | RETVAL |
934 | RETVAL |
| 921 | |
935 | |
| 922 | void |
936 | void |
| 923 | transfer(prev, next, flags) |
937 | transfer(prev, next, flags) |
| 924 | Coro::State_or_hashref prev |
938 | SV *prev |
| 925 | Coro::State_or_hashref next |
939 | SV *next |
| 926 | int flags |
940 | int flags |
| 927 | PROTOTYPE: @ |
941 | PROTOTYPE: @ |
| 928 | CODE: |
942 | CODE: |
| 929 | PUTBACK; |
943 | PUTBACK; |
|
|
944 | SV_CORO (next, "Coro::transfer"); |
|
|
945 | SV_CORO (prev, "Coro::transfer"); |
| 930 | transfer (aTHX_ prev, next, flags); |
946 | transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
| 931 | SPAGAIN; |
947 | SPAGAIN; |
| 932 | |
948 | |
| 933 | void |
949 | void |
| 934 | DESTROY(coro) |
950 | DESTROY(coro) |
| 935 | Coro::State coro |
951 | Coro::State coro |
| … | |
… | |
| 1030 | |
1046 | |
| 1031 | { |
1047 | { |
| 1032 | SV *sv = perl_get_sv("Coro::API", 1); |
1048 | SV *sv = perl_get_sv("Coro::API", 1); |
| 1033 | |
1049 | |
| 1034 | coroapi.schedule = api_schedule; |
1050 | coroapi.schedule = api_schedule; |
|
|
1051 | coroapi.cede = api_cede; |
| 1035 | coroapi.ready = api_ready; |
1052 | coroapi.ready = api_ready; |
| 1036 | coroapi.nready = &coro_nready; |
1053 | coroapi.nready = &coro_nready; |
| 1037 | coroapi.current = coro_current; |
1054 | coroapi.current = coro_current; |
| 1038 | |
1055 | |
| 1039 | GCoroAPI = &coroapi; |
1056 | GCoroAPI = &coroapi; |
| … | |
… | |
| 1043 | } |
1060 | } |
| 1044 | |
1061 | |
| 1045 | void |
1062 | void |
| 1046 | ready(self) |
1063 | ready(self) |
| 1047 | SV * self |
1064 | SV * self |
|
|
1065 | PROTOTYPE: $ |
| 1048 | CODE: |
1066 | CODE: |
| 1049 | api_ready (self); |
1067 | api_ready (self); |
| 1050 | |
1068 | |
| 1051 | int |
1069 | int |
| 1052 | nready(...) |
1070 | nready(...) |
| … | |
… | |
| 1057 | RETVAL |
1075 | RETVAL |
| 1058 | |
1076 | |
| 1059 | void |
1077 | void |
| 1060 | schedule(...) |
1078 | schedule(...) |
| 1061 | PROTOTYPE: |
1079 | PROTOTYPE: |
| 1062 | ALIAS: |
|
|
| 1063 | cede = 1 |
|
|
| 1064 | CODE: |
1080 | CODE: |
| 1065 | api_schedule (ix); |
1081 | api_schedule (); |
| 1066 | |
1082 | |
|
|
1083 | void |
|
|
1084 | cede(...) |
|
|
1085 | PROTOTYPE: |
|
|
1086 | CODE: |
|
|
1087 | api_cede (); |
|
|
1088 | |
