1 | #include "EXTERN.h" |
1 | #include "EXTERN.h" |
2 | #include "perl.h" |
2 | #include "perl.h" |
3 | #include "XSUB.h" |
3 | #include "XSUB.h" |
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4 | |
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5 | #include "patchlevel.h" |
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6 | |
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7 | #if PATCHLEVEL < 6 |
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8 | # ifndef PL_ppaddr |
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9 | # define PL_ppaddr ppaddr |
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10 | # endif |
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11 | # ifndef call_sv |
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12 | # define call_sv perl_call_sv |
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13 | # endif |
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14 | # ifndef get_sv |
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15 | # define get_sv perl_get_sv |
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16 | # endif |
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17 | # ifndef get_cv |
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18 | # define get_cv perl_get_cv |
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19 | # endif |
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20 | # ifndef IS_PADGV |
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21 | # define IS_PADGV(v) 0 |
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22 | # endif |
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23 | # ifndef IS_PADCONST |
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24 | # define IS_PADCONST(v) 0 |
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25 | # endif |
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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 | |
… | |
… | |
16 | # undef HAVE_MMAP |
39 | # undef HAVE_MMAP |
17 | # endif |
40 | # endif |
18 | # endif |
41 | # endif |
19 | #endif |
42 | #endif |
20 | |
43 | |
21 | #define MAY_FLUSH /* increases codesize and is rarely used */ |
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22 | |
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23 | #define SUB_INIT "Coro::State::initialize" |
44 | #define SUB_INIT "Coro::State::initialize" |
24 | #define UCORO_STATE "_coro_state" |
45 | #define UCORO_STATE "_coro_state" |
25 | |
46 | |
26 | /* The next macro should declare a variable stacklevel that contains and approximation |
47 | /* The next macro should declare a variable stacklevel that contains and approximation |
27 | * to the current C stack pointer. Its property is that it changes with each call |
48 | * to the current C stack pointer. Its property is that it changes with each call |
… | |
… | |
47 | void *sptr; |
68 | void *sptr; |
48 | long ssize; /* positive == mmap, otherwise malloc */ |
69 | long ssize; /* positive == mmap, otherwise malloc */ |
49 | } coro_stack; |
70 | } coro_stack; |
50 | |
71 | |
51 | struct coro { |
72 | struct coro { |
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73 | /* the top-level JMPENV for each coroutine, needed to catch dies. */ |
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74 | JMPENV start_env; |
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75 | |
52 | /* the optional C context */ |
76 | /* the optional C context */ |
53 | coro_stack *stack; |
77 | coro_stack *stack; |
54 | void *cursp; |
78 | void *cursp; |
55 | int gencnt; |
79 | int gencnt; |
56 | |
80 | |
… | |
… | |
158 | sv = (SV *) newAV (); |
182 | sv = (SV *) newAV (); |
159 | else if (*name == '%') |
183 | else if (*name == '%') |
160 | sv = (SV *) newHV (); |
184 | sv = (SV *) newHV (); |
161 | else |
185 | else |
162 | sv = NEWSV (0, 0); |
186 | sv = NEWSV (0, 0); |
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187 | #ifdef SvPADBUSY |
163 | if (!SvPADBUSY (sv)) |
188 | if (!SvPADBUSY (sv)) |
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189 | #endif |
164 | SvPADMY_on (sv); |
190 | SvPADMY_on (sv); |
165 | npad[ix] = sv; |
191 | npad[ix] = sv; |
166 | } |
192 | } |
167 | } |
193 | } |
168 | else if (IS_PADGV (ppad[ix]) || IS_PADCONST (ppad[ix])) |
194 | else if (IS_PADGV (ppad[ix]) || IS_PADCONST (ppad[ix])) |
… | |
… | |
198 | #endif |
224 | #endif |
199 | |
225 | |
200 | return newpadlist; |
226 | return newpadlist; |
201 | } |
227 | } |
202 | |
228 | |
203 | #ifdef MAY_FLUSH |
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204 | STATIC void |
229 | STATIC void |
205 | free_padlist (AV *padlist) |
230 | free_padlist (AV *padlist) |
206 | { |
231 | { |
207 | /* may be during global destruction */ |
232 | /* may be during global destruction */ |
208 | if (SvREFCNT(padlist)) |
233 | if (SvREFCNT (padlist)) |
209 | { |
234 | { |
210 | I32 i = AvFILLp(padlist); |
235 | I32 i = AvFILLp (padlist); |
211 | while (i >= 0) |
236 | while (i >= 0) |
212 | { |
237 | { |
213 | SV **svp = av_fetch(padlist, i--, FALSE); |
238 | SV **svp = av_fetch (padlist, i--, FALSE); |
214 | SV *sv = svp ? *svp : Nullsv; |
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215 | if (sv) |
239 | if (svp) |
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240 | { |
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241 | SV *sv; |
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242 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
216 | SvREFCNT_dec(sv); |
243 | SvREFCNT_dec (sv); |
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244 | |
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245 | SvREFCNT_dec (*svp); |
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246 | } |
217 | } |
247 | } |
218 | |
248 | |
219 | SvREFCNT_dec((SV*)padlist); |
249 | SvREFCNT_dec ((SV*)padlist); |
220 | } |
250 | } |
221 | } |
251 | } |
222 | #endif |
252 | |
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253 | STATIC int |
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254 | coro_cv_free (SV *sv, MAGIC *mg) |
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255 | { |
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256 | AV *padlist; |
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257 | AV *av = (AV *)mg->mg_obj; |
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258 | |
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259 | /* casting is fun. */ |
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260 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
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261 | free_padlist (padlist); |
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262 | } |
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263 | |
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264 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
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265 | |
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266 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
223 | |
267 | |
224 | /* the next two functions merely cache the padlists */ |
268 | /* the next two functions merely cache the padlists */ |
225 | STATIC void |
269 | STATIC void |
226 | get_padlist (CV *cv) |
270 | get_padlist (CV *cv) |
227 | { |
271 | { |
228 | SV **he = hv_fetch (padlist_cache, (void *)&cv, sizeof (CV *), 0); |
272 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
229 | |
273 | |
230 | if (he && AvFILLp ((AV *)*he) >= 0) |
274 | if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0) |
231 | CvPADLIST (cv) = (AV *)av_pop ((AV *)*he); |
275 | CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj); |
232 | else |
276 | else |
233 | CvPADLIST (cv) = clone_padlist (CvPADLIST (cv)); |
277 | CvPADLIST (cv) = clone_padlist (CvPADLIST (cv)); |
234 | } |
278 | } |
235 | |
279 | |
236 | STATIC void |
280 | STATIC void |
237 | put_padlist (CV *cv) |
281 | put_padlist (CV *cv) |
238 | { |
282 | { |
239 | SV **he = hv_fetch (padlist_cache, (void *)&cv, sizeof (CV *), 1); |
283 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
240 | |
284 | |
241 | if (SvTYPE (*he) != SVt_PVAV) |
285 | if (!mg) |
242 | { |
286 | { |
243 | SvREFCNT_dec (*he); |
287 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
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288 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
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289 | mg->mg_virtual = &vtbl_coro; |
244 | *he = (SV *)newAV (); |
290 | mg->mg_obj = (SV *)newAV (); |
245 | } |
291 | } |
246 | |
292 | |
247 | av_push ((AV *)*he, (SV *)CvPADLIST (cv)); |
293 | av_push ((AV *)mg->mg_obj, (SV *)CvPADLIST (cv)); |
248 | } |
294 | } |
249 | |
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250 | #ifdef MAY_FLUSH |
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251 | STATIC void |
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252 | flush_padlist_cache () |
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253 | { |
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254 | HV *hv = padlist_cache; |
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255 | padlist_cache = newHV (); |
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256 | |
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257 | if (hv_iterinit (hv)) |
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258 | { |
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259 | HE *he; |
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260 | AV *padlist; |
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261 | |
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262 | while (!!(he = hv_iternext (hv))) |
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263 | { |
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264 | AV *av = (AV *)HeVAL(he); |
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265 | |
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266 | /* casting is fun. */ |
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267 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
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268 | free_padlist (padlist); |
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269 | } |
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270 | } |
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271 | |
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272 | SvREFCNT_dec (hv); |
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273 | } |
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274 | #endif |
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275 | |
295 | |
276 | #define SB do { |
296 | #define SB do { |
277 | #define SE } while (0) |
297 | #define SE } while (0) |
278 | |
298 | |
279 | #define LOAD(state) load_state(aTHX_ (state)); |
299 | #define LOAD(state) load_state(aTHX_ (state)); |
280 | #define SAVE(state,flags) save_state(aTHX_ (state),(flags)); |
300 | #define SAVE(state,flags) save_state(aTHX_ (state),(flags)); |
281 | |
301 | |
282 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE |
302 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE |
283 | |
303 | |
284 | static void |
304 | static void |
285 | load_state(pTHX_ Coro__State c) |
305 | load_state(pTHX_ Coro__State c) |
286 | { |
306 | { |
287 | PL_dowarn = c->dowarn; |
307 | PL_dowarn = c->dowarn; |
… | |
… | |
389 | PUSHs ((SV *)cv); |
409 | PUSHs ((SV *)cv); |
390 | |
410 | |
391 | get_padlist (cv); /* this is a monster */ |
411 | get_padlist (cv); /* this is a monster */ |
392 | } |
412 | } |
393 | } |
413 | } |
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414 | #ifdef CXt_FORMAT |
394 | else if (CxTYPE(cx) == CXt_FORMAT) |
415 | else if (CxTYPE(cx) == CXt_FORMAT) |
395 | { |
416 | { |
396 | /* I never used formats, so how should I know how these are implemented? */ |
417 | /* I never used formats, so how should I know how these are implemented? */ |
397 | /* my bold guess is as a simple, plain sub... */ |
418 | /* my bold guess is as a simple, plain sub... */ |
398 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
419 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
399 | } |
420 | } |
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421 | #endif |
400 | } |
422 | } |
401 | |
423 | |
402 | if (top_si->si_type == PERLSI_MAIN) |
424 | if (top_si->si_type == PERLSI_MAIN) |
403 | break; |
425 | break; |
404 | |
426 | |
… | |
… | |
471 | |
493 | |
472 | New(54,PL_markstack,16,I32); |
494 | New(54,PL_markstack,16,I32); |
473 | PL_markstack_ptr = PL_markstack; |
495 | PL_markstack_ptr = PL_markstack; |
474 | PL_markstack_max = PL_markstack + 16; |
496 | PL_markstack_max = PL_markstack + 16; |
475 | |
497 | |
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498 | #ifdef SET_MARK_OFFSET |
476 | SET_MARK_OFFSET; |
499 | SET_MARK_OFFSET; |
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500 | #endif |
477 | |
501 | |
478 | New(54,PL_scopestack,16,I32); |
502 | New(54,PL_scopestack,16,I32); |
479 | PL_scopestack_ix = 0; |
503 | PL_scopestack_ix = 0; |
480 | PL_scopestack_max = 16; |
504 | PL_scopestack_max = 16; |
481 | |
505 | |
… | |
… | |
488 | PL_retstack_max = 8; |
512 | PL_retstack_max = 8; |
489 | } |
513 | } |
490 | |
514 | |
491 | /* |
515 | /* |
492 | * destroy the stacks, the callchain etc... |
516 | * destroy the stacks, the callchain etc... |
493 | * still there is a memleak of 128 bytes... |
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494 | */ |
517 | */ |
495 | STATIC void |
518 | STATIC void |
496 | destroy_stacks(pTHX) |
519 | destroy_stacks(pTHX) |
497 | { |
520 | { |
498 | if (!IN_DESTRUCT) |
521 | if (!IN_DESTRUCT) |
… | |
… | |
579 | { |
602 | { |
580 | #ifdef HAVE_MMAP |
603 | #ifdef HAVE_MMAP |
581 | if (stack->ssize > 0 && stack->sptr) |
604 | if (stack->ssize > 0 && stack->sptr) |
582 | munmap (stack->sptr, stack->ssize); |
605 | munmap (stack->sptr, stack->ssize); |
583 | else |
606 | else |
584 | #else |
607 | #endif |
585 | Safefree (stack->sptr); |
608 | Safefree (stack->sptr); |
586 | #endif |
609 | |
587 | Safefree (stack); |
610 | Safefree (stack); |
588 | } |
611 | } |
589 | else if (ctx->gencnt == stack->gencnt) |
612 | else if (ctx->gencnt == stack->gencnt) |
590 | --stack->usecnt; |
613 | --stack->usecnt; |
591 | } |
614 | } |
… | |
… | |
603 | |
626 | |
604 | coro_init_stacks (aTHX); |
627 | coro_init_stacks (aTHX); |
605 | /*PL_curcop = 0;*/ |
628 | /*PL_curcop = 0;*/ |
606 | /*PL_in_eval = PL_in_eval;*/ /* inherit */ |
629 | /*PL_in_eval = PL_in_eval;*/ /* inherit */ |
607 | SvREFCNT_dec (GvAV (PL_defgv)); |
630 | SvREFCNT_dec (GvAV (PL_defgv)); |
608 | GvAV (PL_defgv) = ctx->args; |
631 | GvAV (PL_defgv) = ctx->args; ctx->args = 0; |
609 | |
632 | |
610 | SPAGAIN; |
633 | SPAGAIN; |
611 | |
634 | |
612 | if (ctx->stack) |
635 | if (ctx->stack) |
613 | { |
636 | { |
… | |
… | |
656 | * this is a _very_ stripped down perl interpreter ;) |
679 | * this is a _very_ stripped down perl interpreter ;) |
657 | */ |
680 | */ |
658 | Coro__State ctx = (Coro__State)arg; |
681 | Coro__State ctx = (Coro__State)arg; |
659 | JMPENV coro_start_env; |
682 | JMPENV coro_start_env; |
660 | |
683 | |
661 | /* same as JMPENV_BOOTSTRAP */ |
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662 | Zero(&coro_start_env, 1, JMPENV); |
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663 | coro_start_env.je_ret = -1; |
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664 | coro_start_env.je_mustcatch = TRUE; |
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665 | PL_top_env = &coro_start_env; |
684 | PL_top_env = &ctx->start_env; |
666 | |
685 | |
667 | ctx->cursp = 0; |
686 | ctx->cursp = 0; |
668 | PL_op = PL_op->op_next; |
687 | PL_op = PL_op->op_next; |
669 | CALLRUNOPS(aTHX); |
688 | CALLRUNOPS(aTHX); |
670 | |
689 | |
… | |
… | |
728 | if (!prev->stack) |
747 | if (!prev->stack) |
729 | allocate_stack (prev, 0); |
748 | allocate_stack (prev, 0); |
730 | |
749 | |
731 | if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK) |
750 | if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK) |
732 | { |
751 | { |
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752 | PL_top_env = &next->start_env; |
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753 | |
733 | setup_coro (next); |
754 | setup_coro (next); |
734 | |
755 | |
735 | prev->stack->refcnt++; |
756 | prev->stack->refcnt++; |
736 | prev->stack->usecnt++; |
757 | prev->stack->usecnt++; |
737 | next->stack = prev->stack; |
758 | next->stack = prev->stack; |
738 | next->gencnt = prev->gencnt; |
759 | next->gencnt = prev->gencnt; |
739 | } |
760 | } |
740 | else |
761 | else |
741 | { |
762 | { |
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763 | assert (!next->stack); |
742 | allocate_stack (next, 1); |
764 | allocate_stack (next, 1); |
743 | coro_create (&(next->stack->cctx), |
765 | coro_create (&(next->stack->cctx), |
744 | setup_coro, (void *)next, |
766 | setup_coro, (void *)next, |
745 | next->stack->sptr, labs (next->stack->ssize)); |
767 | next->stack->sptr, labs (next->stack->ssize)); |
746 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
768 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
… | |
… | |
924 | Coro__State coro; |
946 | Coro__State coro; |
925 | |
947 | |
926 | if (!SvROK (args) || SvTYPE (SvRV (args)) != SVt_PVAV) |
948 | if (!SvROK (args) || SvTYPE (SvRV (args)) != SVt_PVAV) |
927 | croak ("Coro::State::_newprocess expects an arrayref"); |
949 | croak ("Coro::State::_newprocess expects an arrayref"); |
928 | |
950 | |
929 | New (0, coro, 1, struct coro); |
951 | Newz (0, coro, 1, struct coro); |
930 | |
952 | |
931 | coro->args = (AV *)SvREFCNT_inc (SvRV (args)); |
953 | coro->args = (AV *)SvREFCNT_inc (SvRV (args)); |
932 | coro->mainstack = 0; /* actual work is done inside transfer */ |
954 | coro->mainstack = 0; /* actual work is done inside transfer */ |
933 | coro->stack = 0; |
955 | coro->stack = 0; |
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956 | |
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957 | /* same as JMPENV_BOOTSTRAP */ |
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958 | /* we might be able to recycle start_env, but safe is safe */ |
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959 | //Zero(&coro->start_env, 1, JMPENV); |
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960 | coro->start_env.je_ret = -1; |
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961 | coro->start_env.je_mustcatch = TRUE; |
934 | |
962 | |
935 | RETVAL = coro; |
963 | RETVAL = coro; |
936 | OUTPUT: |
964 | OUTPUT: |
937 | RETVAL |
965 | RETVAL |
938 | |
966 | |
… | |
… | |
970 | |
998 | |
971 | coro->mainstack = 0; |
999 | coro->mainstack = 0; |
972 | } |
1000 | } |
973 | |
1001 | |
974 | deallocate_stack (coro); |
1002 | deallocate_stack (coro); |
975 | |
1003 | SvREFCNT_dec (coro->args); |
976 | Safefree (coro); |
1004 | Safefree (coro); |
977 | |
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978 | void |
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979 | flush() |
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980 | CODE: |
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981 | #ifdef MAY_FLUSH |
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982 | flush_padlist_cache (); |
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983 | #endif |
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984 | |
1005 | |
985 | void |
1006 | void |
986 | _exit(code) |
1007 | _exit(code) |
987 | int code |
1008 | int code |
988 | PROTOTYPE: $ |
1009 | PROTOTYPE: $ |
… | |
… | |
1007 | SV *sv; |
1028 | SV *sv; |
1008 | AV *defav = GvAV (PL_defgv); |
1029 | AV *defav = GvAV (PL_defgv); |
1009 | struct coro *prev, *next; |
1030 | struct coro *prev, *next; |
1010 | |
1031 | |
1011 | if (!returnstk) |
1032 | if (!returnstk) |
1012 | returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE)); |
1033 | returnstk = SvRV ((SV *)get_sv ("Coro::Cont::return", FALSE)); |
1013 | |
1034 | |
1014 | /* set up @_ -- ugly */ |
1035 | /* set up @_ -- ugly */ |
1015 | av_clear (defav); |
1036 | av_clear (defav); |
1016 | av_fill (defav, items - 1); |
1037 | av_fill (defav, items - 1); |
1017 | while (items--) |
1038 | while (items--) |
… | |
… | |
1060 | sv_setiv(sv, (IV)&coroapi); |
1081 | sv_setiv(sv, (IV)&coroapi); |
1061 | SvREADONLY_on(sv); |
1082 | SvREADONLY_on(sv); |
1062 | } |
1083 | } |
1063 | } |
1084 | } |
1064 | |
1085 | |
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1086 | #if !PERL_MICRO |
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1087 | |
1065 | void |
1088 | void |
1066 | ready(self) |
1089 | ready(self) |
1067 | SV * self |
1090 | SV * self |
1068 | PROTOTYPE: $ |
1091 | PROTOTYPE: $ |
1069 | CODE: |
1092 | CODE: |
1070 | api_ready (self); |
1093 | api_ready (self); |
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1094 | |
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1095 | #endif |
1071 | |
1096 | |
1072 | int |
1097 | int |
1073 | nready(...) |
1098 | nready(...) |
1074 | PROTOTYPE: |
1099 | PROTOTYPE: |
1075 | CODE: |
1100 | CODE: |