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2 | #include "perl.h" |
2 | #include "perl.h" |
3 | #include "XSUB.h" |
3 | #include "XSUB.h" |
4 | |
4 | |
5 | #include "libcoro/coro.c" |
5 | #include "libcoro/coro.c" |
6 | |
6 | |
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7 | #include <signal.h> |
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8 | |
7 | #ifdef HAVE_MMAP |
9 | #ifdef HAVE_MMAP |
8 | # include <unistd.h> |
10 | # include <unistd.h> |
9 | # include <sys/mman.h> |
11 | # include <sys/mman.h> |
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12 | # ifndef MAP_ANON |
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13 | # ifdef MAP_ANONYMOUS |
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14 | # define MAP_ANON MAP_ANONYMOUS |
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15 | # else |
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16 | # undef HAVE_MMAP |
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17 | # endif |
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18 | # endif |
10 | #endif |
19 | #endif |
11 | |
20 | |
12 | #define MAY_FLUSH /* increases codesize */ |
21 | #define MAY_FLUSH /* increases codesize */ |
13 | |
22 | |
14 | /* perl-related */ |
23 | /* perl-related */ |
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46 | |
55 | |
47 | void *sptr; |
56 | void *sptr; |
48 | long ssize; /* positive == mmap, otherwise malloc */ |
57 | long ssize; /* positive == mmap, otherwise malloc */ |
49 | } coro_stack; |
58 | } coro_stack; |
50 | |
59 | |
51 | static coro_stack main_stack = { 1, 0, 0 }; |
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52 | |
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53 | struct coro { |
60 | struct coro { |
54 | /* the optional C context */ |
61 | /* the optional C context */ |
55 | coro_stack *stack; |
62 | coro_stack *stack; |
56 | void *cursp; |
63 | void *cursp; |
57 | int gencnt; |
64 | int gencnt; |
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61 | SV *defsv; |
68 | SV *defsv; |
62 | SV *errsv; |
69 | SV *errsv; |
63 | |
70 | |
64 | /* saved global state not related to stacks */ |
71 | /* saved global state not related to stacks */ |
65 | U8 dowarn; |
72 | U8 dowarn; |
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73 | I32 in_eval; |
66 | |
74 | |
67 | /* the stacks and related info (callchain etc..) */ |
75 | /* the stacks and related info (callchain etc..) */ |
68 | PERL_SI *curstackinfo; |
76 | PERL_SI *curstackinfo; |
69 | AV *curstack; |
77 | AV *curstack; |
70 | AV *mainstack; |
78 | AV *mainstack; |
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88 | I32 savestack_max; |
96 | I32 savestack_max; |
89 | OP **retstack; |
97 | OP **retstack; |
90 | I32 retstack_ix; |
98 | I32 retstack_ix; |
91 | I32 retstack_max; |
99 | I32 retstack_max; |
92 | COP *curcop; |
100 | COP *curcop; |
93 | JMPENV start_env; |
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94 | JMPENV *top_env; |
101 | JMPENV *top_env; |
95 | |
102 | |
96 | /* data associated with this coroutine (initial args) */ |
103 | /* data associated with this coroutine (initial args) */ |
97 | AV *args; |
104 | AV *args; |
98 | }; |
105 | }; |
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283 | |
290 | |
284 | static void |
291 | static void |
285 | load_state(pTHX_ Coro__State c) |
292 | load_state(pTHX_ Coro__State c) |
286 | { |
293 | { |
287 | PL_dowarn = c->dowarn; |
294 | PL_dowarn = c->dowarn; |
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295 | PL_in_eval = c->in_eval; |
288 | |
296 | |
289 | PL_curstackinfo = c->curstackinfo; |
297 | PL_curstackinfo = c->curstackinfo; |
290 | PL_curstack = c->curstack; |
298 | PL_curstack = c->curstack; |
291 | PL_mainstack = c->mainstack; |
299 | PL_mainstack = c->mainstack; |
292 | PL_stack_sp = c->stack_sp; |
300 | PL_stack_sp = c->stack_sp; |
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309 | PL_savestack_max = c->savestack_max; |
317 | PL_savestack_max = c->savestack_max; |
310 | PL_retstack = c->retstack; |
318 | PL_retstack = c->retstack; |
311 | PL_retstack_ix = c->retstack_ix; |
319 | PL_retstack_ix = c->retstack_ix; |
312 | PL_retstack_max = c->retstack_max; |
320 | PL_retstack_max = c->retstack_max; |
313 | PL_curcop = c->curcop; |
321 | PL_curcop = c->curcop; |
314 | PL_start_env = c->start_env; |
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315 | PL_top_env = c->top_env; |
322 | PL_top_env = c->top_env; |
316 | |
323 | |
317 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
324 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
318 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
325 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
319 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
326 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
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418 | /* but if it's missing the defav contents magically get replaced sometimes */ |
425 | /* but if it's missing the defav contents magically get replaced sometimes */ |
419 | if (c->defav) |
426 | if (c->defav) |
420 | av_reify (c->defav); |
427 | av_reify (c->defav); |
421 | |
428 | |
422 | c->dowarn = PL_dowarn; |
429 | c->dowarn = PL_dowarn; |
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430 | c->in_eval = PL_in_eval; |
423 | |
431 | |
424 | c->curstackinfo = PL_curstackinfo; |
432 | c->curstackinfo = PL_curstackinfo; |
425 | c->curstack = PL_curstack; |
433 | c->curstack = PL_curstack; |
426 | c->mainstack = PL_mainstack; |
434 | c->mainstack = PL_mainstack; |
427 | c->stack_sp = PL_stack_sp; |
435 | c->stack_sp = PL_stack_sp; |
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444 | c->savestack_max = PL_savestack_max; |
452 | c->savestack_max = PL_savestack_max; |
445 | c->retstack = PL_retstack; |
453 | c->retstack = PL_retstack; |
446 | c->retstack_ix = PL_retstack_ix; |
454 | c->retstack_ix = PL_retstack_ix; |
447 | c->retstack_max = PL_retstack_max; |
455 | c->retstack_max = PL_retstack_max; |
448 | c->curcop = PL_curcop; |
456 | c->curcop = PL_curcop; |
449 | c->start_env = PL_start_env; |
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450 | c->top_env = PL_top_env; |
457 | c->top_env = PL_top_env; |
451 | } |
458 | } |
452 | |
459 | |
453 | /* |
460 | /* |
454 | * allocate various perl stacks. This is an exact copy |
461 | * allocate various perl stacks. This is an exact copy |
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545 | stack->refcnt = 1; |
552 | stack->refcnt = 1; |
546 | stack->usecnt = 1; |
553 | stack->usecnt = 1; |
547 | stack->gencnt = ctx->gencnt = 0; |
554 | stack->gencnt = ctx->gencnt = 0; |
548 | if (alloc) |
555 | if (alloc) |
549 | { |
556 | { |
550 | #ifdef HAVE_MMAP |
557 | #ifdef HAVE_MMAP |
551 | stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-use */ |
558 | stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */ |
552 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, 0, 0); |
559 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, 0, 0); |
553 | if (stack->sptr == (void *)-1) |
560 | if (stack->sptr == (void *)-1) |
554 | #endif |
561 | #endif |
555 | { |
562 | { |
556 | /*FIXME*//*D*//* reasonable stack size! */ |
563 | /*FIXME*//*D*//* reasonable stack size! */ |
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598 | dSP; |
605 | dSP; |
599 | Coro__State ctx = (Coro__State)arg; |
606 | Coro__State ctx = (Coro__State)arg; |
600 | SV *sub_init = (SV*)get_cv(SUB_INIT, FALSE); |
607 | SV *sub_init = (SV*)get_cv(SUB_INIT, FALSE); |
601 | |
608 | |
602 | coro_init_stacks (aTHX); |
609 | coro_init_stacks (aTHX); |
603 | JMPENV_BOOTSTRAP; |
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604 | SPAGAIN; |
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605 | |
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606 | /*PL_curcop = 0;*/ |
610 | /*PL_curcop = 0;*/ |
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611 | /*PL_in_eval = PL_in_eval;*/ /* inherit */ |
607 | SvREFCNT_dec (GvAV (PL_defgv)); |
612 | SvREFCNT_dec (GvAV (PL_defgv)); |
608 | GvAV (PL_defgv) = ctx->args; |
613 | GvAV (PL_defgv) = ctx->args; |
609 | |
614 | |
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615 | SPAGAIN; |
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616 | |
610 | if (ctx->stack) |
617 | if (ctx->stack) |
611 | { |
618 | { |
612 | ctx->cursp = 0; |
619 | ctx->cursp = 0; |
613 | |
620 | |
614 | PUSHMARK(SP); |
621 | PUSHMARK(SP); |
615 | PUTBACK; |
622 | PUTBACK; |
616 | (void) call_sv (sub_init, G_VOID|G_NOARGS); |
623 | (void) call_sv (sub_init, G_VOID|G_NOARGS|G_EVAL); |
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624 | |
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625 | if (SvTRUE (ERRSV)) |
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626 | croak (NULL); |
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627 | else |
617 | croak ("FATAL: CCTXT coroutine returned!"); |
628 | croak ("FATAL: CCTXT coroutine returned!"); |
618 | } |
629 | } |
619 | else |
630 | else |
620 | { |
631 | { |
621 | UNOP myop; |
632 | UNOP myop; |
622 | |
633 | |
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649 | /* |
660 | /* |
650 | * this is a _very_ stripped down perl interpreter ;) |
661 | * this is a _very_ stripped down perl interpreter ;) |
651 | */ |
662 | */ |
652 | Coro__State ctx = (Coro__State)arg; |
663 | Coro__State ctx = (Coro__State)arg; |
653 | |
664 | |
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665 | /*FIXME*//* must set up top_env here */ |
654 | ctx->cursp = 0; |
666 | ctx->cursp = 0; |
655 | PL_op = PL_op->op_next; |
667 | PL_op = PL_op->op_next; |
656 | CALLRUNOPS(aTHX); |
668 | CALLRUNOPS(aTHX); |
657 | /*NORETURN*/ |
669 | |
658 | abort (); |
670 | abort (); |
659 | } |
671 | } |
660 | |
672 | |
661 | STATIC void |
673 | STATIC void |
662 | transfer(pTHX_ struct coro *prev, struct coro *next, int flags) |
674 | transfer(pTHX_ struct coro *prev, struct coro *next, int flags) |
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784 | Coro::State_or_hashref prev |
796 | Coro::State_or_hashref prev |
785 | Coro::State_or_hashref next |
797 | Coro::State_or_hashref next |
786 | int flags |
798 | int flags |
787 | PROTOTYPE: @ |
799 | PROTOTYPE: @ |
788 | CODE: |
800 | CODE: |
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801 | PUTBACK; |
789 | transfer (aTHX_ prev, next, flags); |
802 | transfer (aTHX_ prev, next, flags); |
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803 | SPAGAIN; |
790 | |
804 | |
791 | void |
805 | void |
792 | DESTROY(coro) |
806 | DESTROY(coro) |
793 | Coro::State coro |
807 | Coro::State coro |
794 | CODE: |
808 | CODE: |
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814 | void |
828 | void |
815 | flush() |
829 | flush() |
816 | CODE: |
830 | CODE: |
817 | #ifdef MAY_FLUSH |
831 | #ifdef MAY_FLUSH |
818 | flush_padlist_cache (); |
832 | flush_padlist_cache (); |
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833 | #endif |
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834 | |
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835 | void |
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836 | _exit(code) |
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837 | int code |
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838 | PROTOTYPE: $ |
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839 | CODE: |
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840 | #if defined(__GLIBC__) || _POSIX_C_SOURCE |
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841 | _exit (code); |
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842 | #else |
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843 | signal (SIGTERM, SIG_DFL); |
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844 | raise (SIGTERM); |
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845 | exit (code); |
819 | #endif |
846 | #endif |
820 | |
847 | |
821 | MODULE = Coro::State PACKAGE = Coro::Cont |
848 | MODULE = Coro::State PACKAGE = Coro::Cont |
822 | |
849 | |
823 | # this is slightly dirty |
850 | # this is slightly dirty |