… | |
… | |
129 | }; |
129 | }; |
130 | |
130 | |
131 | static size_t coro_stacksize = CORO_STACKSIZE; |
131 | static size_t coro_stacksize = CORO_STACKSIZE; |
132 | static struct CoroAPI coroapi; |
132 | static struct CoroAPI coroapi; |
133 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
133 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
|
|
134 | static JMPENV *main_top_env; |
134 | static HV *coro_state_stash, *coro_stash; |
135 | static HV *coro_state_stash, *coro_stash; |
135 | static SV *coro_mortal; /* will be freed after next transfer */ |
136 | static SV *coro_mortal; /* will be freed after next transfer */ |
136 | |
137 | |
137 | static struct coro_cctx *cctx_first; |
138 | static struct coro_cctx *cctx_first; |
138 | static int cctx_count, cctx_idle; |
139 | static int cctx_count, cctx_idle; |
… | |
… | |
177 | |
178 | |
178 | /* optionally saved, might be zero */ |
179 | /* optionally saved, might be zero */ |
179 | AV *defav; /* @_ */ |
180 | AV *defav; /* @_ */ |
180 | SV *defsv; /* $_ */ |
181 | SV *defsv; /* $_ */ |
181 | SV *errsv; /* $@ */ |
182 | SV *errsv; /* $@ */ |
|
|
183 | GV *deffh; /* default filehandle */ |
182 | SV *irssv; /* $/ */ |
184 | SV *irssv; /* $/ */ |
183 | SV *irssv_sv; /* real $/ cache */ |
185 | SV *irssv_sv; /* real $/ cache */ |
184 | |
186 | |
185 | #define VAR(name,type) type name; |
187 | #define VAR(name,type) type name; |
186 | # include "state.h" |
188 | # include "state.h" |
187 | #undef VAR |
189 | #undef VAR |
188 | |
190 | |
189 | /* coro process data */ |
191 | /* coro process data */ |
190 | int prio; |
192 | int prio; |
|
|
193 | |
|
|
194 | /* linked list */ |
|
|
195 | struct coro *next, *prev; |
|
|
196 | HV *hv; /* the perl hash associated with this coro, if any */ |
191 | }; |
197 | }; |
192 | |
198 | |
193 | typedef struct coro *Coro__State; |
199 | typedef struct coro *Coro__State; |
194 | typedef struct coro *Coro__State_or_hashref; |
200 | typedef struct coro *Coro__State_or_hashref; |
195 | |
201 | |
… | |
… | |
204 | |
210 | |
205 | /* for Coro.pm */ |
211 | /* for Coro.pm */ |
206 | static SV *coro_current; |
212 | static SV *coro_current; |
207 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
213 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
208 | static int coro_nready; |
214 | static int coro_nready; |
|
|
215 | static struct coro *first; |
209 | |
216 | |
210 | /** lowlevel stuff **********************************************************/ |
217 | /** lowlevel stuff **********************************************************/ |
211 | |
218 | |
212 | static AV * |
219 | static AV * |
213 | coro_clone_padlist (pTHX_ CV *cv) |
220 | coro_clone_padlist (pTHX_ CV *cv) |
… | |
… | |
341 | #undef VAR |
348 | #undef VAR |
342 | |
349 | |
343 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
350 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
344 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
351 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
345 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
352 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
|
|
353 | if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh); |
|
|
354 | |
346 | if (c->irssv) |
355 | if (c->irssv) |
347 | { |
356 | { |
348 | if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv)) |
357 | if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv)) |
|
|
358 | { |
349 | SvREFCNT_dec (c->irssv); |
359 | SvREFCNT_dec (c->irssv); |
|
|
360 | c->irssv = 0; |
|
|
361 | } |
350 | else |
362 | else |
351 | { |
363 | { |
352 | REPLACE_SV (PL_rs, c->irssv); |
364 | REPLACE_SV (PL_rs, c->irssv); |
353 | if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0); |
365 | if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0); |
354 | sv_setsv (c->irssv_sv, PL_rs); |
366 | sv_setsv (c->irssv_sv, PL_rs); |
… | |
… | |
367 | CvPADLIST (cv) = (AV *)POPs; |
379 | CvPADLIST (cv) = (AV *)POPs; |
368 | } |
380 | } |
369 | |
381 | |
370 | PUTBACK; |
382 | PUTBACK; |
371 | } |
383 | } |
372 | assert (!PL_comppad || AvARRAY (PL_comppad));//D |
|
|
373 | } |
384 | } |
374 | |
385 | |
375 | static void |
386 | static void |
376 | save_perl (pTHX_ Coro__State c) |
387 | save_perl (pTHX_ Coro__State c) |
377 | { |
388 | { |
378 | assert (!PL_comppad || AvARRAY (PL_comppad));//D |
|
|
379 | { |
389 | { |
380 | dSP; |
390 | dSP; |
381 | I32 cxix = cxstack_ix; |
391 | I32 cxix = cxstack_ix; |
382 | PERL_CONTEXT *ccstk = cxstack; |
392 | PERL_CONTEXT *ccstk = cxstack; |
383 | PERL_SI *top_si = PL_curstackinfo; |
393 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
394 | { |
404 | { |
395 | while (cxix >= 0) |
405 | while (cxix >= 0) |
396 | { |
406 | { |
397 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
407 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
398 | |
408 | |
399 | if (CxTYPE (cx) == CXt_SUB) |
409 | if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT) |
400 | { |
410 | { |
401 | CV *cv = cx->blk_sub.cv; |
411 | CV *cv = cx->blk_sub.cv; |
402 | |
412 | |
403 | if (CvDEPTH (cv)) |
413 | if (CvDEPTH (cv)) |
404 | { |
414 | { |
… | |
… | |
425 | } |
435 | } |
426 | |
436 | |
427 | c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
437 | c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
428 | c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
438 | c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
429 | c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
439 | c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
|
|
440 | c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0; |
430 | c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; |
441 | c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; |
431 | |
442 | |
432 | #define VAR(name,type)c->name = PL_ ## name; |
443 | #define VAR(name,type)c->name = PL_ ## name; |
433 | # include "state.h" |
444 | # include "state.h" |
434 | #undef VAR |
445 | #undef VAR |
… | |
… | |
559 | Zero (&myop, 1, LOGOP); |
570 | Zero (&myop, 1, LOGOP); |
560 | myop.op_next = Nullop; |
571 | myop.op_next = Nullop; |
561 | myop.op_flags = OPf_WANT_VOID; |
572 | myop.op_flags = OPf_WANT_VOID; |
562 | |
573 | |
563 | PUSHMARK (SP); |
574 | PUSHMARK (SP); |
564 | XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); |
575 | XPUSHs (av_shift (GvAV (PL_defgv))); |
565 | PUTBACK; |
576 | PUTBACK; |
566 | PL_op = (OP *)&myop; |
577 | PL_op = (OP *)&myop; |
567 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
578 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
568 | SPAGAIN; |
579 | SPAGAIN; |
569 | } |
580 | } |
… | |
… | |
580 | coro_mortal = 0; |
591 | coro_mortal = 0; |
581 | } |
592 | } |
582 | } |
593 | } |
583 | |
594 | |
584 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
595 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
596 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
597 | /* during execution of a perl program */ |
585 | static void NOINLINE |
598 | static void NOINLINE |
586 | prepare_cctx (pTHX_ coro_cctx *cctx) |
599 | prepare_cctx (pTHX_ coro_cctx *cctx) |
587 | { |
600 | { |
588 | dSP; |
601 | dSP; |
589 | LOGOP myop; |
602 | LOGOP myop; |
… | |
… | |
600 | PL_op = (OP *)&myop; |
613 | PL_op = (OP *)&myop; |
601 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
614 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
602 | SPAGAIN; |
615 | SPAGAIN; |
603 | } |
616 | } |
604 | |
617 | |
|
|
618 | /* |
|
|
619 | * this is a _very_ stripped down perl interpreter ;) |
|
|
620 | */ |
605 | static void |
621 | static void |
606 | coro_run (void *arg) |
622 | coro_run (void *arg) |
607 | { |
623 | { |
608 | dTHX; |
624 | dTHX; |
609 | |
625 | |
610 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
626 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
611 | UNLOCK; |
627 | UNLOCK; |
612 | |
628 | |
613 | /* |
|
|
614 | * this is a _very_ stripped down perl interpreter ;) |
|
|
615 | */ |
|
|
616 | PL_top_env = &PL_start_env; |
629 | PL_top_env = &PL_start_env; |
617 | |
630 | |
618 | /* inject call to cctx_init */ |
631 | /* inject a fake subroutine call to cctx_init */ |
619 | prepare_cctx (aTHX_ (coro_cctx *)arg); |
632 | prepare_cctx (aTHX_ (coro_cctx *)arg); |
620 | |
633 | |
621 | /* somebody will hit me for both perl_run and PL_restartop */ |
634 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
622 | PL_restartop = PL_op; |
635 | PL_restartop = PL_op; |
623 | perl_run (PL_curinterp); |
636 | perl_run (PL_curinterp); |
624 | |
637 | |
625 | fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); |
638 | /* |
626 | abort (); |
639 | * If perl-run returns we assume exit() was being called or the coro |
|
|
640 | * fell off the end, which seems to be the only valid (non-bug) |
|
|
641 | * reason for perl_run to return. We try to exit by jumping to the |
|
|
642 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
|
|
643 | * coroutine as Coro has no such concept |
|
|
644 | */ |
|
|
645 | PL_top_env = main_top_env; |
|
|
646 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
627 | } |
647 | } |
628 | |
648 | |
629 | static coro_cctx * |
649 | static coro_cctx * |
630 | cctx_new () |
650 | cctx_new () |
631 | { |
651 | { |
… | |
… | |
878 | } |
898 | } |
879 | |
899 | |
880 | cctx_destroy (coro->cctx); |
900 | cctx_destroy (coro->cctx); |
881 | SvREFCNT_dec (coro->args); |
901 | SvREFCNT_dec (coro->args); |
882 | |
902 | |
|
|
903 | if (coro->next) coro->next->prev = coro->prev; |
|
|
904 | if (coro->prev) coro->prev->next = coro->next; |
|
|
905 | if (coro == first) first = coro->next; |
|
|
906 | |
883 | return 1; |
907 | return 1; |
884 | } |
908 | } |
885 | |
909 | |
886 | static int |
910 | static int |
887 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
911 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
888 | { |
912 | { |
889 | struct coro *coro = (struct coro *)mg->mg_ptr; |
913 | struct coro *coro = (struct coro *)mg->mg_ptr; |
890 | mg->mg_ptr = 0; |
914 | mg->mg_ptr = 0; |
|
|
915 | |
|
|
916 | coro->hv = 0; |
891 | |
917 | |
892 | if (--coro->refcnt < 0) |
918 | if (--coro->refcnt < 0) |
893 | { |
919 | { |
894 | coro_state_destroy (aTHX_ coro); |
920 | coro_state_destroy (aTHX_ coro); |
895 | Safefree (coro); |
921 | Safefree (coro); |
… | |
… | |
1163 | |
1189 | |
1164 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); |
1190 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); |
1165 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); |
1191 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); |
1166 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV)); |
1192 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV)); |
1167 | newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV)); |
1193 | newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV)); |
|
|
1194 | newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH)); |
|
|
1195 | newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF)); |
1168 | newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); |
1196 | newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); |
1169 | |
1197 | |
1170 | main_mainstack = PL_mainstack; |
1198 | main_mainstack = PL_mainstack; |
|
|
1199 | main_top_env = PL_top_env; |
|
|
1200 | |
|
|
1201 | while (main_top_env->je_prev) |
|
|
1202 | main_top_env = main_top_env->je_prev; |
1171 | |
1203 | |
1172 | coroapi.ver = CORO_API_VERSION; |
1204 | coroapi.ver = CORO_API_VERSION; |
1173 | coroapi.transfer = api_transfer; |
1205 | coroapi.transfer = api_transfer; |
1174 | |
1206 | |
1175 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1207 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
… | |
… | |
1183 | HV *hv; |
1215 | HV *hv; |
1184 | int i; |
1216 | int i; |
1185 | |
1217 | |
1186 | Newz (0, coro, 1, struct coro); |
1218 | Newz (0, coro, 1, struct coro); |
1187 | coro->args = newAV (); |
1219 | coro->args = newAV (); |
1188 | coro->save = CORO_SAVE_ALL; |
1220 | coro->save = CORO_SAVE_DEF; |
1189 | coro->flags = CF_NEW; |
1221 | coro->flags = CF_NEW; |
1190 | |
1222 | |
|
|
1223 | if (first) first->prev = coro; |
|
|
1224 | coro->next = first; |
|
|
1225 | first = coro; |
|
|
1226 | |
1191 | hv = newHV (); |
1227 | coro->hv = hv = newHV (); |
1192 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1228 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1193 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1229 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1194 | |
1230 | |
1195 | for (i = 1; i < items; i++) |
1231 | for (i = 1; i < items; i++) |
1196 | av_push (coro->args, newSVsv (ST (i))); |
1232 | av_push (coro->args, newSVsv (ST (i))); |
… | |
… | |
1200 | |
1236 | |
1201 | int |
1237 | int |
1202 | save (SV *coro, int new_save = -1) |
1238 | save (SV *coro, int new_save = -1) |
1203 | CODE: |
1239 | CODE: |
1204 | RETVAL = api_save (coro, new_save); |
1240 | RETVAL = api_save (coro, new_save); |
|
|
1241 | OUTPUT: |
|
|
1242 | RETVAL |
|
|
1243 | |
|
|
1244 | int |
|
|
1245 | save_also (SV *coro_sv, int save_also) |
|
|
1246 | CODE: |
|
|
1247 | { |
|
|
1248 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1249 | RETVAL = coro->save; |
|
|
1250 | coro->save |= save_also; |
|
|
1251 | } |
1205 | OUTPUT: |
1252 | OUTPUT: |
1206 | RETVAL |
1253 | RETVAL |
1207 | |
1254 | |
1208 | void |
1255 | void |
1209 | _set_stacklevel (...) |
1256 | _set_stacklevel (...) |
… | |
… | |
1287 | CODE: |
1334 | CODE: |
1288 | RETVAL = cctx_idle; |
1335 | RETVAL = cctx_idle; |
1289 | OUTPUT: |
1336 | OUTPUT: |
1290 | RETVAL |
1337 | RETVAL |
1291 | |
1338 | |
|
|
1339 | void |
|
|
1340 | list () |
|
|
1341 | PPCODE: |
|
|
1342 | { |
|
|
1343 | struct coro *coro; |
|
|
1344 | for (coro = first; coro; coro = coro->next) |
|
|
1345 | if (coro->hv) |
|
|
1346 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
|
|
1347 | } |
|
|
1348 | |
|
|
1349 | void |
|
|
1350 | _eval (SV *coro_sv, SV *coderef) |
|
|
1351 | CODE: |
|
|
1352 | { |
|
|
1353 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1354 | if (coro->mainstack) |
|
|
1355 | { |
|
|
1356 | struct coro temp; |
|
|
1357 | Zero (&temp, 1, struct coro); |
|
|
1358 | temp.save = CORO_SAVE_ALL; |
|
|
1359 | |
|
|
1360 | if (!(coro->flags & CF_RUNNING)) |
|
|
1361 | { |
|
|
1362 | save_perl (aTHX_ &temp); |
|
|
1363 | load_perl (aTHX_ coro); |
|
|
1364 | } |
|
|
1365 | |
|
|
1366 | { |
|
|
1367 | dSP; |
|
|
1368 | ENTER; |
|
|
1369 | SAVETMPS; |
|
|
1370 | PUSHMARK (SP); |
|
|
1371 | PUTBACK; |
|
|
1372 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1373 | SPAGAIN; |
|
|
1374 | FREETMPS; |
|
|
1375 | LEAVE; |
|
|
1376 | PUTBACK; |
|
|
1377 | } |
|
|
1378 | |
|
|
1379 | if (!(coro->flags & CF_RUNNING)) |
|
|
1380 | { |
|
|
1381 | save_perl (aTHX_ coro); |
|
|
1382 | load_perl (aTHX_ &temp); |
|
|
1383 | } |
|
|
1384 | } |
|
|
1385 | } |
|
|
1386 | |
|
|
1387 | SV * |
|
|
1388 | is_ready (SV *coro_sv) |
|
|
1389 | PROTOTYPE: $ |
|
|
1390 | ALIAS: |
|
|
1391 | is_ready = CF_READY |
|
|
1392 | is_running = CF_RUNNING |
|
|
1393 | is_new = CF_NEW |
|
|
1394 | is_destroyed = CF_DESTROYED |
|
|
1395 | CODE: |
|
|
1396 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1397 | RETVAL = boolSV (coro->flags & ix); |
|
|
1398 | OUTPUT: |
|
|
1399 | RETVAL |
|
|
1400 | |
|
|
1401 | |
1292 | MODULE = Coro::State PACKAGE = Coro |
1402 | MODULE = Coro::State PACKAGE = Coro |
1293 | |
1403 | |
1294 | BOOT: |
1404 | BOOT: |
1295 | { |
1405 | { |
1296 | int i; |
1406 | int i; |
… | |
… | |
1363 | CODE: |
1473 | CODE: |
1364 | RETVAL = boolSV (api_ready (self)); |
1474 | RETVAL = boolSV (api_ready (self)); |
1365 | OUTPUT: |
1475 | OUTPUT: |
1366 | RETVAL |
1476 | RETVAL |
1367 | |
1477 | |
1368 | SV * |
|
|
1369 | is_ready (SV *self) |
|
|
1370 | PROTOTYPE: $ |
|
|
1371 | CODE: |
|
|
1372 | RETVAL = boolSV (api_is_ready (self)); |
|
|
1373 | OUTPUT: |
|
|
1374 | RETVAL |
|
|
1375 | |
|
|
1376 | int |
1478 | int |
1377 | nready (...) |
1479 | nready (...) |
1378 | PROTOTYPE: |
1480 | PROTOTYPE: |
1379 | CODE: |
1481 | CODE: |
1380 | RETVAL = coro_nready; |
1482 | RETVAL = coro_nready; |