| 1 | #include "EXTERN.h" |
1 | #include "EXTERN.h" |
| 2 | #include "perl.h" |
2 | #include "perl.h" |
| 3 | #include "XSUB.h" |
3 | #include "XSUB.h" |
|
|
4 | |
|
|
5 | #include "patchlevel.h" |
|
|
6 | |
|
|
7 | #if PATCHLEVEL < 6 |
|
|
8 | # ifndef PL_ppaddr |
|
|
9 | # define PL_ppaddr ppaddr |
|
|
10 | # endif |
|
|
11 | # ifndef call_sv |
|
|
12 | # define call_sv perl_call_sv |
|
|
13 | # endif |
|
|
14 | # ifndef get_sv |
|
|
15 | # define get_sv perl_get_sv |
|
|
16 | # endif |
|
|
17 | # ifndef get_cv |
|
|
18 | # define get_cv perl_get_cv |
|
|
19 | # endif |
|
|
20 | # ifndef IS_PADGV |
|
|
21 | # define IS_PADGV(v) 0 |
|
|
22 | # endif |
|
|
23 | # ifndef IS_PADCONST |
|
|
24 | # define IS_PADCONST(v) 0 |
|
|
25 | # endif |
|
|
26 | #endif |
| 4 | |
27 | |
| 5 | #include "libcoro/coro.c" |
28 | #include "libcoro/coro.c" |
| 6 | |
29 | |
| 7 | #include <signal.h> |
30 | #include <signal.h> |
| 8 | |
31 | |
| … | |
… | |
| 47 | void *sptr; |
70 | void *sptr; |
| 48 | long ssize; /* positive == mmap, otherwise malloc */ |
71 | long ssize; /* positive == mmap, otherwise malloc */ |
| 49 | } coro_stack; |
72 | } coro_stack; |
| 50 | |
73 | |
| 51 | struct coro { |
74 | struct coro { |
|
|
75 | /* the top-level JMPENV for each coroutine, needed to catch dies. */ |
|
|
76 | JMPENV start_env; |
|
|
77 | |
| 52 | /* the optional C context */ |
78 | /* the optional C context */ |
| 53 | coro_stack *stack; |
79 | coro_stack *stack; |
| 54 | void *cursp; |
80 | void *cursp; |
| 55 | int gencnt; |
81 | int gencnt; |
| 56 | |
82 | |
| … | |
… | |
| 68 | AV *curstack; |
94 | AV *curstack; |
| 69 | AV *mainstack; |
95 | AV *mainstack; |
| 70 | SV **stack_sp; |
96 | SV **stack_sp; |
| 71 | OP *op; |
97 | OP *op; |
| 72 | SV **curpad; |
98 | SV **curpad; |
|
|
99 | AV *comppad; |
| 73 | SV **stack_base; |
100 | SV **stack_base; |
| 74 | SV **stack_max; |
101 | SV **stack_max; |
| 75 | SV **tmps_stack; |
102 | SV **tmps_stack; |
| 76 | I32 tmps_floor; |
103 | I32 tmps_floor; |
| 77 | I32 tmps_ix; |
104 | I32 tmps_ix; |
| … | |
… | |
| 276 | #define SE } while (0) |
303 | #define SE } while (0) |
| 277 | |
304 | |
| 278 | #define LOAD(state) load_state(aTHX_ (state)); |
305 | #define LOAD(state) load_state(aTHX_ (state)); |
| 279 | #define SAVE(state,flags) save_state(aTHX_ (state),(flags)); |
306 | #define SAVE(state,flags) save_state(aTHX_ (state),(flags)); |
| 280 | |
307 | |
| 281 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE |
308 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE |
| 282 | |
309 | |
| 283 | static void |
310 | static void |
| 284 | load_state(pTHX_ Coro__State c) |
311 | load_state(pTHX_ Coro__State c) |
| 285 | { |
312 | { |
| 286 | PL_dowarn = c->dowarn; |
313 | PL_dowarn = c->dowarn; |
| … | |
… | |
| 290 | PL_curstack = c->curstack; |
317 | PL_curstack = c->curstack; |
| 291 | PL_mainstack = c->mainstack; |
318 | PL_mainstack = c->mainstack; |
| 292 | PL_stack_sp = c->stack_sp; |
319 | PL_stack_sp = c->stack_sp; |
| 293 | PL_op = c->op; |
320 | PL_op = c->op; |
| 294 | PL_curpad = c->curpad; |
321 | PL_curpad = c->curpad; |
|
|
322 | PL_comppad = c->comppad; |
| 295 | PL_stack_base = c->stack_base; |
323 | PL_stack_base = c->stack_base; |
| 296 | PL_stack_max = c->stack_max; |
324 | PL_stack_max = c->stack_max; |
| 297 | PL_tmps_stack = c->tmps_stack; |
325 | PL_tmps_stack = c->tmps_stack; |
| 298 | PL_tmps_floor = c->tmps_floor; |
326 | PL_tmps_floor = c->tmps_floor; |
| 299 | PL_tmps_ix = c->tmps_ix; |
327 | PL_tmps_ix = c->tmps_ix; |
| … | |
… | |
| 387 | PUSHs ((SV *)cv); |
415 | PUSHs ((SV *)cv); |
| 388 | |
416 | |
| 389 | get_padlist (cv); /* this is a monster */ |
417 | get_padlist (cv); /* this is a monster */ |
| 390 | } |
418 | } |
| 391 | } |
419 | } |
|
|
420 | #ifdef CXt_FORMAT |
| 392 | else if (CxTYPE(cx) == CXt_FORMAT) |
421 | else if (CxTYPE(cx) == CXt_FORMAT) |
| 393 | { |
422 | { |
| 394 | /* I never used formats, so how should I know how these are implemented? */ |
423 | /* I never used formats, so how should I know how these are implemented? */ |
| 395 | /* my bold guess is as a simple, plain sub... */ |
424 | /* my bold guess is as a simple, plain sub... */ |
| 396 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
425 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
| 397 | } |
426 | } |
|
|
427 | #endif |
| 398 | } |
428 | } |
| 399 | |
429 | |
| 400 | if (top_si->si_type == PERLSI_MAIN) |
430 | if (top_si->si_type == PERLSI_MAIN) |
| 401 | break; |
431 | break; |
| 402 | |
432 | |
| … | |
… | |
| 419 | c->curstack = PL_curstack; |
449 | c->curstack = PL_curstack; |
| 420 | c->mainstack = PL_mainstack; |
450 | c->mainstack = PL_mainstack; |
| 421 | c->stack_sp = PL_stack_sp; |
451 | c->stack_sp = PL_stack_sp; |
| 422 | c->op = PL_op; |
452 | c->op = PL_op; |
| 423 | c->curpad = PL_curpad; |
453 | c->curpad = PL_curpad; |
|
|
454 | c->comppad = PL_comppad; |
| 424 | c->stack_base = PL_stack_base; |
455 | c->stack_base = PL_stack_base; |
| 425 | c->stack_max = PL_stack_max; |
456 | c->stack_max = PL_stack_max; |
| 426 | c->tmps_stack = PL_tmps_stack; |
457 | c->tmps_stack = PL_tmps_stack; |
| 427 | c->tmps_floor = PL_tmps_floor; |
458 | c->tmps_floor = PL_tmps_floor; |
| 428 | c->tmps_ix = PL_tmps_ix; |
459 | c->tmps_ix = PL_tmps_ix; |
| … | |
… | |
| 468 | |
499 | |
| 469 | New(54,PL_markstack,16,I32); |
500 | New(54,PL_markstack,16,I32); |
| 470 | PL_markstack_ptr = PL_markstack; |
501 | PL_markstack_ptr = PL_markstack; |
| 471 | PL_markstack_max = PL_markstack + 16; |
502 | PL_markstack_max = PL_markstack + 16; |
| 472 | |
503 | |
|
|
504 | #ifdef SET_MARK_OFFSET |
| 473 | SET_MARK_OFFSET; |
505 | SET_MARK_OFFSET; |
|
|
506 | #endif |
| 474 | |
507 | |
| 475 | New(54,PL_scopestack,16,I32); |
508 | New(54,PL_scopestack,16,I32); |
| 476 | PL_scopestack_ix = 0; |
509 | PL_scopestack_ix = 0; |
| 477 | PL_scopestack_max = 16; |
510 | PL_scopestack_max = 16; |
| 478 | |
511 | |
| … | |
… | |
| 485 | PL_retstack_max = 8; |
518 | PL_retstack_max = 8; |
| 486 | } |
519 | } |
| 487 | |
520 | |
| 488 | /* |
521 | /* |
| 489 | * destroy the stacks, the callchain etc... |
522 | * destroy the stacks, the callchain etc... |
| 490 | * still there is a memleak of 128 bytes... |
|
|
| 491 | */ |
523 | */ |
| 492 | STATIC void |
524 | STATIC void |
| 493 | destroy_stacks(pTHX) |
525 | destroy_stacks(pTHX) |
| 494 | { |
526 | { |
| 495 | if (!IN_DESTRUCT) |
527 | if (!IN_DESTRUCT) |
| … | |
… | |
| 576 | { |
608 | { |
| 577 | #ifdef HAVE_MMAP |
609 | #ifdef HAVE_MMAP |
| 578 | if (stack->ssize > 0 && stack->sptr) |
610 | if (stack->ssize > 0 && stack->sptr) |
| 579 | munmap (stack->sptr, stack->ssize); |
611 | munmap (stack->sptr, stack->ssize); |
| 580 | else |
612 | else |
| 581 | #else |
613 | #endif |
| 582 | Safefree (stack->sptr); |
614 | Safefree (stack->sptr); |
| 583 | #endif |
615 | |
| 584 | Safefree (stack); |
616 | Safefree (stack); |
| 585 | } |
617 | } |
| 586 | else if (ctx->gencnt == stack->gencnt) |
618 | else if (ctx->gencnt == stack->gencnt) |
| 587 | --stack->usecnt; |
619 | --stack->usecnt; |
| 588 | } |
620 | } |
| … | |
… | |
| 600 | |
632 | |
| 601 | coro_init_stacks (aTHX); |
633 | coro_init_stacks (aTHX); |
| 602 | /*PL_curcop = 0;*/ |
634 | /*PL_curcop = 0;*/ |
| 603 | /*PL_in_eval = PL_in_eval;*/ /* inherit */ |
635 | /*PL_in_eval = PL_in_eval;*/ /* inherit */ |
| 604 | SvREFCNT_dec (GvAV (PL_defgv)); |
636 | SvREFCNT_dec (GvAV (PL_defgv)); |
| 605 | GvAV (PL_defgv) = ctx->args; |
637 | GvAV (PL_defgv) = ctx->args; ctx->args = 0; |
| 606 | |
638 | |
| 607 | SPAGAIN; |
639 | SPAGAIN; |
| 608 | |
640 | |
| 609 | if (ctx->stack) |
641 | if (ctx->stack) |
| 610 | { |
642 | { |
| … | |
… | |
| 637 | * that doesn't matter, though, since it is only |
669 | * that doesn't matter, though, since it is only |
| 638 | * pp_nextstate and we never return... |
670 | * pp_nextstate and we never return... |
| 639 | * ah yes, and I don't care anyways ;) |
671 | * ah yes, and I don't care anyways ;) |
| 640 | */ |
672 | */ |
| 641 | PUTBACK; |
673 | PUTBACK; |
| 642 | PL_op = PL_ppaddr[OP_ENTERSUB](); |
674 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
| 643 | SPAGAIN; |
675 | SPAGAIN; |
| 644 | |
676 | |
| 645 | ENTER; /* necessary e.g. for dounwind */ |
677 | ENTER; /* necessary e.g. for dounwind */ |
| 646 | } |
678 | } |
| 647 | } |
679 | } |
| … | |
… | |
| 653 | * this is a _very_ stripped down perl interpreter ;) |
685 | * this is a _very_ stripped down perl interpreter ;) |
| 654 | */ |
686 | */ |
| 655 | Coro__State ctx = (Coro__State)arg; |
687 | Coro__State ctx = (Coro__State)arg; |
| 656 | JMPENV coro_start_env; |
688 | JMPENV coro_start_env; |
| 657 | |
689 | |
| 658 | /* same as JMPENV_BOOTSTRAP */ |
|
|
| 659 | Zero(&coro_start_env, 1, JMPENV); |
|
|
| 660 | coro_start_env.je_ret = -1; |
|
|
| 661 | coro_start_env.je_mustcatch = TRUE; |
|
|
| 662 | PL_top_env = &coro_start_env; |
690 | PL_top_env = &ctx->start_env; |
| 663 | |
691 | |
| 664 | ctx->cursp = 0; |
692 | ctx->cursp = 0; |
| 665 | PL_op = PL_op->op_next; |
693 | PL_op = PL_op->op_next; |
| 666 | CALLRUNOPS(aTHX); |
694 | CALLRUNOPS(aTHX); |
| 667 | |
695 | |
| … | |
… | |
| 725 | if (!prev->stack) |
753 | if (!prev->stack) |
| 726 | allocate_stack (prev, 0); |
754 | allocate_stack (prev, 0); |
| 727 | |
755 | |
| 728 | if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK) |
756 | if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK) |
| 729 | { |
757 | { |
|
|
758 | PL_top_env = &next->start_env; |
|
|
759 | |
| 730 | setup_coro (next); |
760 | setup_coro (next); |
| 731 | |
761 | |
| 732 | prev->stack->refcnt++; |
762 | prev->stack->refcnt++; |
| 733 | prev->stack->usecnt++; |
763 | prev->stack->usecnt++; |
| 734 | next->stack = prev->stack; |
764 | next->stack = prev->stack; |
| 735 | next->gencnt = prev->gencnt; |
765 | next->gencnt = prev->gencnt; |
| 736 | } |
766 | } |
| 737 | else |
767 | else |
| 738 | { |
768 | { |
|
|
769 | assert (!next->stack); |
| 739 | allocate_stack (next, 1); |
770 | allocate_stack (next, 1); |
| 740 | coro_create (&(next->stack->cctx), |
771 | coro_create (&(next->stack->cctx), |
| 741 | setup_coro, (void *)next, |
772 | setup_coro, (void *)next, |
| 742 | next->stack->sptr, labs (next->stack->ssize)); |
773 | next->stack->sptr, labs (next->stack->ssize)); |
| 743 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
774 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
| … | |
… | |
| 921 | Coro__State coro; |
952 | Coro__State coro; |
| 922 | |
953 | |
| 923 | if (!SvROK (args) || SvTYPE (SvRV (args)) != SVt_PVAV) |
954 | if (!SvROK (args) || SvTYPE (SvRV (args)) != SVt_PVAV) |
| 924 | croak ("Coro::State::_newprocess expects an arrayref"); |
955 | croak ("Coro::State::_newprocess expects an arrayref"); |
| 925 | |
956 | |
| 926 | New (0, coro, 1, struct coro); |
957 | Newz (0, coro, 1, struct coro); |
| 927 | |
958 | |
| 928 | coro->args = (AV *)SvREFCNT_inc (SvRV (args)); |
959 | coro->args = (AV *)SvREFCNT_inc (SvRV (args)); |
| 929 | coro->mainstack = 0; /* actual work is done inside transfer */ |
960 | coro->mainstack = 0; /* actual work is done inside transfer */ |
| 930 | coro->stack = 0; |
961 | coro->stack = 0; |
|
|
962 | |
|
|
963 | /* same as JMPENV_BOOTSTRAP */ |
|
|
964 | /* we might be able to recycle start_env, but safe is safe */ |
|
|
965 | //Zero(&coro->start_env, 1, JMPENV); |
|
|
966 | coro->start_env.je_ret = -1; |
|
|
967 | coro->start_env.je_mustcatch = TRUE; |
| 931 | |
968 | |
| 932 | RETVAL = coro; |
969 | RETVAL = coro; |
| 933 | OUTPUT: |
970 | OUTPUT: |
| 934 | RETVAL |
971 | RETVAL |
| 935 | |
972 | |
| … | |
… | |
| 967 | |
1004 | |
| 968 | coro->mainstack = 0; |
1005 | coro->mainstack = 0; |
| 969 | } |
1006 | } |
| 970 | |
1007 | |
| 971 | deallocate_stack (coro); |
1008 | deallocate_stack (coro); |
| 972 | |
1009 | SvREFCNT_dec (coro->args); |
| 973 | Safefree (coro); |
1010 | Safefree (coro); |
| 974 | |
1011 | |
| 975 | void |
1012 | void |
| 976 | flush() |
1013 | flush() |
| 977 | CODE: |
1014 | CODE: |
| … | |
… | |
| 1004 | SV *sv; |
1041 | SV *sv; |
| 1005 | AV *defav = GvAV (PL_defgv); |
1042 | AV *defav = GvAV (PL_defgv); |
| 1006 | struct coro *prev, *next; |
1043 | struct coro *prev, *next; |
| 1007 | |
1044 | |
| 1008 | if (!returnstk) |
1045 | if (!returnstk) |
| 1009 | returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE)); |
1046 | returnstk = SvRV ((SV *)get_sv ("Coro::Cont::return", FALSE)); |
| 1010 | |
1047 | |
| 1011 | /* set up @_ -- ugly */ |
1048 | /* set up @_ -- ugly */ |
| 1012 | av_clear (defav); |
1049 | av_clear (defav); |
| 1013 | av_fill (defav, items - 1); |
1050 | av_fill (defav, items - 1); |
| 1014 | while (items--) |
1051 | while (items--) |
