… | |
… | |
7 | #include "patchlevel.h" |
7 | #include "patchlevel.h" |
8 | |
8 | |
9 | #if USE_VALGRIND |
9 | #if USE_VALGRIND |
10 | # include <valgrind/valgrind.h> |
10 | # include <valgrind/valgrind.h> |
11 | #endif |
11 | #endif |
|
|
12 | |
|
|
13 | /* the maximum number of idle cctx that will be pooled */ |
|
|
14 | #define MAX_IDLE_CCTX 8 |
12 | |
15 | |
13 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
16 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
14 | (PERL_REVISION > (a) \ |
17 | (PERL_REVISION > (a) \ |
15 | || (PERL_REVISION == (a) \ |
18 | || (PERL_REVISION == (a) \ |
16 | && (PERL_VERSION > (b) \ |
19 | && (PERL_VERSION > (b) \ |
… | |
… | |
87 | |
90 | |
88 | #define NOINLINE attribute ((noinline)) |
91 | #define NOINLINE attribute ((noinline)) |
89 | |
92 | |
90 | #include "CoroAPI.h" |
93 | #include "CoroAPI.h" |
91 | |
94 | |
92 | #define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */ |
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|
93 | |
|
|
94 | #ifdef USE_ITHREADS |
95 | #ifdef USE_ITHREADS |
95 | static perl_mutex coro_mutex; |
96 | static perl_mutex coro_mutex; |
96 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
97 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
97 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
98 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
98 | #else |
99 | #else |
99 | # define LOCK (void)0 |
100 | # define LOCK (void)0 |
100 | # define UNLOCK (void)0 |
101 | # define UNLOCK (void)0 |
101 | #endif |
102 | #endif |
102 | |
103 | |
|
|
104 | struct io_state |
|
|
105 | { |
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|
106 | int errorno; |
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|
107 | I32 laststype; |
|
|
108 | int laststatval; |
|
|
109 | Stat_t statcache; |
|
|
110 | }; |
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|
111 | |
103 | static struct CoroAPI coroapi; |
112 | static struct CoroAPI coroapi; |
104 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
113 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
105 | static HV *coro_state_stash, *coro_stash; |
114 | static HV *coro_state_stash, *coro_stash; |
106 | static SV *coro_mortal; /* will be freed after next transfer */ |
115 | static SV *coro_mortal; /* will be freed after next transfer */ |
107 | |
116 | |
… | |
… | |
127 | int valgrind_id; |
136 | int valgrind_id; |
128 | #endif |
137 | #endif |
129 | } coro_cctx; |
138 | } coro_cctx; |
130 | |
139 | |
131 | enum { |
140 | enum { |
132 | CF_RUNNING, /* coroutine is running */ |
141 | CF_RUNNING = 0x0001, /* coroutine is running */ |
133 | CF_READY, /* coroutine is ready */ |
142 | CF_READY = 0x0002, /* coroutine is ready */ |
|
|
143 | CF_NEW = 0x0004, /* ahs never been switched to */ |
134 | }; |
144 | }; |
135 | |
145 | |
136 | /* this is a structure representing a perl-level coroutine */ |
146 | /* this is a structure representing a perl-level coroutine */ |
137 | struct coro { |
147 | struct coro { |
138 | /* the c coroutine allocated to this perl coroutine, if any */ |
148 | /* the c coroutine allocated to this perl coroutine, if any */ |
139 | coro_cctx *cctx; |
149 | coro_cctx *cctx; |
140 | |
150 | |
141 | /* data associated with this coroutine (initial args) */ |
151 | /* data associated with this coroutine (initial args) */ |
142 | AV *args; |
152 | AV *args; |
143 | int refcnt; |
153 | int refcnt; |
144 | int flags; |
154 | int save; /* CORO_SAVE flags */ |
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|
155 | int flags; /* CF_ flags */ |
145 | |
156 | |
146 | /* optionally saved, might be zero */ |
157 | /* optionally saved, might be zero */ |
147 | AV *defav; |
158 | AV *defav; /* @_ */ |
148 | SV *defsv; |
159 | SV *defsv; /* $_ */ |
149 | SV *errsv; |
160 | SV *errsv; /* $@ */ |
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|
161 | SV *irssv; /* $/ */ |
|
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162 | SV *irssv_sv; /* real $/ cache */ |
150 | |
163 | |
151 | #define VAR(name,type) type name; |
164 | #define VAR(name,type) type name; |
152 | # include "state.h" |
165 | # include "state.h" |
153 | #undef VAR |
166 | #undef VAR |
154 | |
167 | |
… | |
… | |
277 | } |
290 | } |
278 | |
291 | |
279 | #define SB do { |
292 | #define SB do { |
280 | #define SE } while (0) |
293 | #define SE } while (0) |
281 | |
294 | |
282 | #define LOAD(state) load_state((state)); |
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|
283 | #define SAVE(state,flags) save_state((state),(flags)); |
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284 | |
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|
285 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE |
295 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE |
286 | |
296 | |
287 | static void |
297 | static void |
288 | load_state(Coro__State c) |
298 | load_perl (Coro__State c) |
289 | { |
299 | { |
290 | #define VAR(name,type) PL_ ## name = c->name; |
300 | #define VAR(name,type) PL_ ## name = c->name; |
291 | # include "state.h" |
301 | # include "state.h" |
292 | #undef VAR |
302 | #undef VAR |
293 | |
303 | |
294 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
304 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
295 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
305 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
296 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
306 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
|
|
307 | if (c->irssv) |
|
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308 | { |
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309 | if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv)) |
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310 | SvREFCNT_dec (c->irssv); |
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311 | else |
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|
312 | { |
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313 | REPLACE_SV (PL_rs, c->irssv); |
|
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314 | if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0); |
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315 | sv_setsv (c->irssv_sv, PL_rs); |
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316 | } |
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|
317 | } |
297 | |
318 | |
298 | { |
319 | { |
299 | dSP; |
320 | dSP; |
300 | CV *cv; |
321 | CV *cv; |
301 | |
322 | |
… | |
… | |
310 | PUTBACK; |
331 | PUTBACK; |
311 | } |
332 | } |
312 | } |
333 | } |
313 | |
334 | |
314 | static void |
335 | static void |
315 | save_state(Coro__State c, int flags) |
336 | save_perl (Coro__State c) |
316 | { |
337 | { |
317 | { |
338 | { |
318 | dSP; |
339 | dSP; |
319 | I32 cxix = cxstack_ix; |
340 | I32 cxix = cxstack_ix; |
320 | PERL_CONTEXT *ccstk = cxstack; |
341 | PERL_CONTEXT *ccstk = cxstack; |
… | |
… | |
331 | { |
352 | { |
332 | while (cxix >= 0) |
353 | while (cxix >= 0) |
333 | { |
354 | { |
334 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
355 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
335 | |
356 | |
336 | if (CxTYPE(cx) == CXt_SUB) |
357 | if (CxTYPE (cx) == CXt_SUB) |
337 | { |
358 | { |
338 | CV *cv = cx->blk_sub.cv; |
359 | CV *cv = cx->blk_sub.cv; |
339 | |
360 | |
340 | if (CvDEPTH (cv)) |
361 | if (CvDEPTH (cv)) |
341 | { |
362 | { |
342 | EXTEND (SP, 3); |
363 | EXTEND (SP, 3); |
343 | |
364 | |
344 | PUSHs ((SV *)CvPADLIST(cv)); |
365 | PUSHs ((SV *)CvPADLIST (cv)); |
345 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
366 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
346 | PUSHs ((SV *)cv); |
367 | PUSHs ((SV *)cv); |
347 | |
368 | |
348 | CvDEPTH (cv) = 0; |
369 | CvDEPTH (cv) = 0; |
349 | get_padlist (cv); |
370 | get_padlist (cv); |
350 | } |
371 | } |
351 | } |
372 | } |
352 | #ifdef CXt_FORMAT |
373 | #ifdef CXt_FORMAT |
353 | else if (CxTYPE(cx) == CXt_FORMAT) |
374 | else if (CxTYPE (cx) == CXt_FORMAT) |
354 | { |
375 | { |
355 | /* I never used formats, so how should I know how these are implemented? */ |
376 | /* I never used formats, so how should I know how these are implemented? */ |
356 | /* my bold guess is as a simple, plain sub... */ |
377 | /* my bold guess is as a simple, plain sub... */ |
357 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
378 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
358 | } |
379 | } |
… | |
… | |
368 | } |
389 | } |
369 | |
390 | |
370 | PUTBACK; |
391 | PUTBACK; |
371 | } |
392 | } |
372 | |
393 | |
373 | c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
394 | c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
374 | c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
395 | c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
375 | c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
396 | c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
|
|
397 | c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; |
376 | |
398 | |
377 | #define VAR(name,type)c->name = PL_ ## name; |
399 | #define VAR(name,type)c->name = PL_ ## name; |
378 | # include "state.h" |
400 | # include "state.h" |
379 | #undef VAR |
401 | #undef VAR |
380 | } |
402 | } |
… | |
… | |
386 | * not usually need a lot of stackspace. |
408 | * not usually need a lot of stackspace. |
387 | */ |
409 | */ |
388 | static void |
410 | static void |
389 | coro_init_stacks () |
411 | coro_init_stacks () |
390 | { |
412 | { |
391 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
413 | PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT)); |
392 | PL_curstackinfo->si_type = PERLSI_MAIN; |
414 | PL_curstackinfo->si_type = PERLSI_MAIN; |
393 | PL_curstack = PL_curstackinfo->si_stack; |
415 | PL_curstack = PL_curstackinfo->si_stack; |
394 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
416 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
395 | |
417 | |
396 | PL_stack_base = AvARRAY(PL_curstack); |
418 | PL_stack_base = AvARRAY(PL_curstack); |
397 | PL_stack_sp = PL_stack_base; |
419 | PL_stack_sp = PL_stack_base; |
398 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
420 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
399 | |
421 | |
400 | New(50,PL_tmps_stack,96,SV*); |
422 | New(50,PL_tmps_stack,128,SV*); |
401 | PL_tmps_floor = -1; |
423 | PL_tmps_floor = -1; |
402 | PL_tmps_ix = -1; |
424 | PL_tmps_ix = -1; |
403 | PL_tmps_max = 96; |
425 | PL_tmps_max = 128; |
404 | |
426 | |
405 | New(54,PL_markstack,16,I32); |
427 | New(54,PL_markstack,32,I32); |
406 | PL_markstack_ptr = PL_markstack; |
428 | PL_markstack_ptr = PL_markstack; |
407 | PL_markstack_max = PL_markstack + 16; |
429 | PL_markstack_max = PL_markstack + 32; |
408 | |
430 | |
409 | #ifdef SET_MARK_OFFSET |
431 | #ifdef SET_MARK_OFFSET |
410 | SET_MARK_OFFSET; |
432 | SET_MARK_OFFSET; |
411 | #endif |
433 | #endif |
412 | |
434 | |
413 | New(54,PL_scopestack,16,I32); |
435 | New(54,PL_scopestack,32,I32); |
414 | PL_scopestack_ix = 0; |
436 | PL_scopestack_ix = 0; |
415 | PL_scopestack_max = 16; |
437 | PL_scopestack_max = 32; |
416 | |
438 | |
417 | New(54,PL_savestack,96,ANY); |
439 | New(54,PL_savestack,64,ANY); |
418 | PL_savestack_ix = 0; |
440 | PL_savestack_ix = 0; |
419 | PL_savestack_max = 96; |
441 | PL_savestack_max = 64; |
420 | |
442 | |
421 | #if !PERL_VERSION_ATLEAST (5,9,0) |
443 | #if !PERL_VERSION_ATLEAST (5,9,0) |
422 | New(54,PL_retstack,8,OP*); |
444 | New(54,PL_retstack,16,OP*); |
423 | PL_retstack_ix = 0; |
445 | PL_retstack_ix = 0; |
424 | PL_retstack_max = 8; |
446 | PL_retstack_max = 16; |
425 | #endif |
447 | #endif |
426 | } |
448 | } |
427 | |
449 | |
428 | /* |
450 | /* |
429 | * destroy the stacks, the callchain etc... |
451 | * destroy the stacks, the callchain etc... |
… | |
… | |
482 | * emulate part of the perl startup here. |
504 | * emulate part of the perl startup here. |
483 | */ |
505 | */ |
484 | |
506 | |
485 | coro_init_stacks (); |
507 | coro_init_stacks (); |
486 | |
508 | |
487 | PL_curcop = 0; |
509 | PL_curcop = &PL_compiling; |
488 | PL_in_eval = 0; |
510 | PL_in_eval = EVAL_NULL; |
489 | PL_curpm = 0; |
511 | PL_curpm = 0; |
|
|
512 | PL_localizing = 0; |
|
|
513 | PL_dirty = 0; |
|
|
514 | PL_restartop = 0; |
490 | |
515 | |
491 | { |
516 | { |
492 | dSP; |
517 | dSP; |
493 | LOGOP myop; |
518 | LOGOP myop; |
494 | |
519 | |
495 | /* I have no idea why this is needed, but it is */ |
|
|
496 | PUSHMARK (SP); |
|
|
497 | |
|
|
498 | SvREFCNT_dec (GvAV (PL_defgv)); |
520 | SvREFCNT_dec (GvAV (PL_defgv)); |
499 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
521 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
500 | |
522 | |
501 | Zero (&myop, 1, LOGOP); |
523 | Zero (&myop, 1, LOGOP); |
502 | myop.op_next = Nullop; |
524 | myop.op_next = Nullop; |
503 | myop.op_flags = OPf_WANT_VOID; |
525 | myop.op_flags = OPf_WANT_VOID; |
504 | |
526 | |
505 | PL_op = (OP *)&myop; |
|
|
506 | |
|
|
507 | PUSHMARK (SP); |
527 | PUSHMARK (SP); |
508 | XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); |
528 | XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); |
509 | PUTBACK; |
529 | PUTBACK; |
|
|
530 | PL_op = (OP *)&myop; |
510 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
531 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
511 | SPAGAIN; |
532 | SPAGAIN; |
512 | |
|
|
513 | ENTER; /* necessary e.g. for dounwind */ |
|
|
514 | } |
533 | } |
|
|
534 | |
|
|
535 | ENTER; /* necessary e.g. for dounwind */ |
515 | } |
536 | } |
516 | |
537 | |
517 | static void |
538 | static void |
518 | free_coro_mortal () |
539 | free_coro_mortal () |
519 | { |
540 | { |
… | |
… | |
522 | SvREFCNT_dec (coro_mortal); |
543 | SvREFCNT_dec (coro_mortal); |
523 | coro_mortal = 0; |
544 | coro_mortal = 0; |
524 | } |
545 | } |
525 | } |
546 | } |
526 | |
547 | |
|
|
548 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
527 | static void NOINLINE |
549 | static void NOINLINE |
528 | prepare_cctx (coro_cctx *cctx) |
550 | prepare_cctx (coro_cctx *cctx) |
529 | { |
551 | { |
530 | dSP; |
552 | dSP; |
531 | LOGOP myop; |
553 | LOGOP myop; |
532 | |
554 | |
533 | Zero (&myop, 1, LOGOP); |
555 | Zero (&myop, 1, LOGOP); |
534 | myop.op_next = PL_op; |
556 | myop.op_next = PL_op; |
535 | myop.op_flags = OPf_WANT_VOID; |
557 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
536 | |
|
|
537 | sv_setiv (get_sv ("Coro::State::_cctx", FALSE), PTR2IV (cctx)); |
|
|
538 | |
558 | |
539 | PUSHMARK (SP); |
559 | PUSHMARK (SP); |
|
|
560 | EXTEND (SP, 2); |
|
|
561 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
540 | XPUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
562 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
541 | PUTBACK; |
563 | PUTBACK; |
|
|
564 | PL_op = (OP *)&myop; |
542 | PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX); |
565 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
543 | SPAGAIN; |
566 | SPAGAIN; |
544 | } |
567 | } |
545 | |
568 | |
546 | static void |
569 | static void |
547 | coro_run (void *arg) |
570 | coro_run (void *arg) |
548 | { |
571 | { |
549 | /* coro_run is the alternative epilogue of transfer() */ |
572 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
550 | UNLOCK; |
573 | UNLOCK; |
551 | |
574 | |
552 | /* |
575 | /* |
553 | * this is a _very_ stripped down perl interpreter ;) |
576 | * this is a _very_ stripped down perl interpreter ;) |
554 | */ |
577 | */ |
… | |
… | |
556 | |
579 | |
557 | /* inject call to cctx_init */ |
580 | /* inject call to cctx_init */ |
558 | prepare_cctx ((coro_cctx *)arg); |
581 | prepare_cctx ((coro_cctx *)arg); |
559 | |
582 | |
560 | /* somebody will hit me for both perl_run and PL_restartop */ |
583 | /* somebody will hit me for both perl_run and PL_restartop */ |
|
|
584 | PL_restartop = PL_op; |
561 | perl_run (PL_curinterp); |
585 | perl_run (PL_curinterp); |
562 | |
586 | |
563 | fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); |
587 | fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); |
564 | abort (); |
588 | abort (); |
565 | } |
589 | } |
… | |
… | |
574 | New (0, cctx, 1, coro_cctx); |
598 | New (0, cctx, 1, coro_cctx); |
575 | |
599 | |
576 | #if HAVE_MMAP |
600 | #if HAVE_MMAP |
577 | |
601 | |
578 | cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; |
602 | cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; |
579 | /* mmap suppsedly does allocate-on-write for us */ |
603 | /* mmap supposedly does allocate-on-write for us */ |
580 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
604 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
581 | |
605 | |
582 | if (cctx->sptr == (void *)-1) |
606 | if (cctx->sptr == (void *)-1) |
583 | { |
607 | { |
584 | perror ("FATAL: unable to mmap stack for coroutine"); |
608 | perror ("FATAL: unable to mmap stack for coroutine"); |
… | |
… | |
613 | |
637 | |
614 | return cctx; |
638 | return cctx; |
615 | } |
639 | } |
616 | |
640 | |
617 | static void |
641 | static void |
618 | cctx_free (coro_cctx *cctx) |
642 | cctx_destroy (coro_cctx *cctx) |
619 | { |
643 | { |
620 | if (!cctx) |
644 | if (!cctx) |
621 | return; |
645 | return; |
622 | |
646 | |
623 | --cctx_count; |
647 | --cctx_count; |
… | |
… | |
640 | { |
664 | { |
641 | coro_cctx *cctx; |
665 | coro_cctx *cctx; |
642 | |
666 | |
643 | if (cctx_first) |
667 | if (cctx_first) |
644 | { |
668 | { |
645 | --cctx_idle; |
|
|
646 | cctx = cctx_first; |
669 | cctx = cctx_first; |
647 | cctx_first = cctx->next; |
670 | cctx_first = cctx->next; |
|
|
671 | --cctx_idle; |
648 | } |
672 | } |
649 | else |
673 | else |
650 | { |
674 | { |
651 | cctx = cctx_new (); |
675 | cctx = cctx_new (); |
652 | PL_op = PL_op->op_next; |
676 | PL_op = PL_op->op_next; |
… | |
… | |
656 | } |
680 | } |
657 | |
681 | |
658 | static void |
682 | static void |
659 | cctx_put (coro_cctx *cctx) |
683 | cctx_put (coro_cctx *cctx) |
660 | { |
684 | { |
|
|
685 | /* free another cctx if overlimit */ |
|
|
686 | if (cctx_idle >= MAX_IDLE_CCTX) |
|
|
687 | { |
|
|
688 | coro_cctx *first = cctx_first; |
|
|
689 | cctx_first = first->next; |
|
|
690 | --cctx_idle; |
|
|
691 | |
|
|
692 | assert (!first->inuse); |
|
|
693 | cctx_destroy (first); |
|
|
694 | } |
|
|
695 | |
661 | ++cctx_idle; |
696 | ++cctx_idle; |
662 | cctx->next = cctx_first; |
697 | cctx->next = cctx_first; |
663 | cctx_first = cctx; |
698 | cctx_first = cctx; |
664 | } |
699 | } |
665 | |
700 | |
666 | /* never call directly, always through the coro_state_transfer global variable */ |
701 | /* never call directly, always through the coro_state_transfer global variable */ |
667 | static void NOINLINE |
702 | static void NOINLINE |
668 | transfer (struct coro *prev, struct coro *next, int flags) |
703 | transfer (struct coro *prev, struct coro *next) |
669 | { |
704 | { |
670 | dSTACKLEVEL; |
705 | dSTACKLEVEL; |
671 | |
706 | |
672 | /* sometimes transfer is only called to set idle_sp */ |
707 | /* sometimes transfer is only called to set idle_sp */ |
673 | if (flags == TRANSFER_SET_STACKLEVEL) |
708 | if (!next) |
674 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
709 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
675 | else if (prev != next) |
710 | else if (prev != next) |
676 | { |
711 | { |
677 | coro_cctx *prev__cctx; |
712 | coro_cctx *prev__cctx; |
678 | |
713 | |
679 | if (!prev->cctx) |
714 | if (prev->flags & CF_NEW) |
680 | { |
715 | { |
681 | /* create a new empty context */ |
716 | /* create a new empty context */ |
682 | Newz (0, prev->cctx, 1, coro_cctx); |
717 | Newz (0, prev->cctx, 1, coro_cctx); |
683 | prev->cctx->inuse = 1; |
718 | prev->cctx->inuse = 1; |
|
|
719 | prev->flags &= ~CF_NEW; |
684 | prev->flags |= CF_RUNNING; |
720 | prev->flags |= CF_RUNNING; |
685 | } |
721 | } |
686 | |
722 | |
|
|
723 | /*TODO: must not croak here */ |
687 | if (!prev->flags & CF_RUNNING) |
724 | if (!prev->flags & CF_RUNNING) |
688 | croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states"); |
725 | croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states"); |
689 | |
726 | |
690 | if (next->flags & CF_RUNNING) |
727 | if (next->flags & CF_RUNNING) |
691 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
728 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
… | |
… | |
693 | prev->flags &= ~CF_RUNNING; |
730 | prev->flags &= ~CF_RUNNING; |
694 | next->flags |= CF_RUNNING; |
731 | next->flags |= CF_RUNNING; |
695 | |
732 | |
696 | LOCK; |
733 | LOCK; |
697 | |
734 | |
698 | if (next->mainstack) |
735 | if (next->flags & CF_NEW) |
699 | { |
|
|
700 | /* coroutine already started */ |
|
|
701 | SAVE (prev, flags); |
|
|
702 | LOAD (next); |
|
|
703 | } |
|
|
704 | else |
|
|
705 | { |
736 | { |
706 | /* need to start coroutine */ |
737 | /* need to start coroutine */ |
|
|
738 | next->flags &= ~CF_NEW; |
707 | /* first get rid of the old state */ |
739 | /* first get rid of the old state */ |
708 | SAVE (prev, -1); |
740 | save_perl (prev); |
709 | /* setup coroutine call */ |
741 | /* setup coroutine call */ |
710 | setup_coro (next); |
742 | setup_coro (next); |
711 | /* need a new stack */ |
743 | /* need a new stack */ |
712 | assert (!next->stack); |
744 | assert (!next->stack); |
713 | } |
745 | } |
|
|
746 | else |
|
|
747 | { |
|
|
748 | /* coroutine already started */ |
|
|
749 | save_perl (prev); |
|
|
750 | load_perl (next); |
|
|
751 | } |
714 | |
752 | |
715 | prev__cctx = prev->cctx; |
753 | prev__cctx = prev->cctx; |
716 | |
754 | |
717 | /* possibly "free" the cctx */ |
755 | /* possibly "free" the cctx */ |
718 | if (prev__cctx->idle_sp == STACKLEVEL) |
756 | if (prev__cctx->idle_sp == STACKLEVEL) |
719 | { |
757 | { |
|
|
758 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
720 | assert (PL_top_env == prev__cctx->top_env); |
759 | assert (PL_top_env == prev__cctx->top_env); |
721 | |
760 | |
|
|
761 | prev->cctx = 0; |
|
|
762 | |
722 | cctx_put (prev__cctx); |
763 | cctx_put (prev__cctx); |
723 | prev->cctx = 0; |
764 | prev__cctx->inuse = 0; |
724 | } |
765 | } |
725 | |
766 | |
726 | if (!next->cctx) |
767 | if (!next->cctx) |
|
|
768 | { |
727 | next->cctx = cctx_get (); |
769 | next->cctx = cctx_get (); |
|
|
770 | assert (!next->cctx->inuse); |
|
|
771 | next->cctx->inuse = 1; |
|
|
772 | } |
728 | |
773 | |
729 | if (prev__cctx != next->cctx) |
774 | if (prev__cctx != next->cctx) |
730 | { |
775 | { |
731 | assert ( prev__cctx->inuse); |
|
|
732 | assert (!next->cctx->inuse); |
|
|
733 | |
|
|
734 | prev__cctx->inuse = 0; |
|
|
735 | next->cctx->inuse = 1; |
|
|
736 | |
|
|
737 | prev__cctx->top_env = PL_top_env; |
776 | prev__cctx->top_env = PL_top_env; |
738 | PL_top_env = next->cctx->top_env; |
777 | PL_top_env = next->cctx->top_env; |
739 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
778 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
740 | } |
779 | } |
741 | |
780 | |
… | |
… | |
746 | } |
785 | } |
747 | |
786 | |
748 | struct transfer_args |
787 | struct transfer_args |
749 | { |
788 | { |
750 | struct coro *prev, *next; |
789 | struct coro *prev, *next; |
751 | int flags; |
|
|
752 | }; |
790 | }; |
753 | |
791 | |
754 | #define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags) |
792 | #define TRANSFER(ta) transfer ((ta).prev, (ta).next) |
755 | |
793 | |
756 | static void |
794 | static void |
757 | coro_state_destroy (struct coro *coro) |
795 | coro_state_destroy (struct coro *coro) |
758 | { |
796 | { |
759 | if (coro->refcnt--) |
797 | if (coro->refcnt--) |
760 | return; |
798 | return; |
761 | |
|
|
762 | if (coro->flags & CF_RUNNING) |
|
|
763 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
764 | |
799 | |
765 | if (coro->mainstack && coro->mainstack != main_mainstack) |
800 | if (coro->mainstack && coro->mainstack != main_mainstack) |
766 | { |
801 | { |
767 | struct coro temp; |
802 | struct coro temp; |
|
|
803 | Zero (&temp, 1, struct coro); |
|
|
804 | temp.save = CORO_SAVE_ALL; |
768 | |
805 | |
769 | SAVE ((&temp), TRANSFER_SAVE_ALL); |
806 | if (coro->flags & CF_RUNNING) |
770 | LOAD (coro); |
807 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
808 | |
|
|
809 | save_perl (&temp); |
|
|
810 | load_perl (coro); |
771 | |
811 | |
772 | coro_destroy_stacks (); |
812 | coro_destroy_stacks (); |
773 | |
813 | |
774 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
814 | load_perl (&temp); /* this will get rid of defsv etc.. */ |
775 | |
815 | |
776 | coro->mainstack = 0; |
816 | coro->mainstack = 0; |
777 | } |
817 | } |
778 | |
818 | |
779 | cctx_free (coro->cctx); |
819 | cctx_destroy (coro->cctx); |
780 | SvREFCNT_dec (coro->args); |
820 | SvREFCNT_dec (coro->args); |
781 | Safefree (coro); |
821 | Safefree (coro); |
782 | } |
822 | } |
783 | |
823 | |
784 | static int |
824 | static int |
… | |
… | |
834 | assert (mg->mg_type == PERL_MAGIC_ext); |
874 | assert (mg->mg_type == PERL_MAGIC_ext); |
835 | return (struct coro *)mg->mg_ptr; |
875 | return (struct coro *)mg->mg_ptr; |
836 | } |
876 | } |
837 | |
877 | |
838 | static void |
878 | static void |
839 | prepare_transfer (struct transfer_args *ta, SV *prev, SV *next, int flags) |
879 | prepare_transfer (struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
840 | { |
880 | { |
841 | ta->prev = SvSTATE (prev); |
881 | ta->prev = SvSTATE (prev_sv); |
842 | ta->next = SvSTATE (next); |
882 | ta->next = SvSTATE (next_sv); |
843 | ta->flags = flags; |
|
|
844 | } |
883 | } |
845 | |
884 | |
846 | static void |
885 | static void |
847 | api_transfer (SV *prev, SV *next, int flags) |
886 | api_transfer (SV *prev_sv, SV *next_sv) |
848 | { |
887 | { |
849 | dTHX; |
|
|
850 | struct transfer_args ta; |
888 | struct transfer_args ta; |
851 | |
889 | |
852 | prepare_transfer (&ta, prev, next, flags); |
890 | prepare_transfer (&ta, prev_sv, next_sv); |
853 | TRANSFER (ta); |
891 | TRANSFER (ta); |
|
|
892 | } |
|
|
893 | |
|
|
894 | static int |
|
|
895 | api_save (SV *coro_sv, int new_save) |
|
|
896 | { |
|
|
897 | struct coro *coro = SvSTATE (coro_sv); |
|
|
898 | int old_save = coro->save; |
|
|
899 | |
|
|
900 | if (new_save >= 0) |
|
|
901 | coro->save = new_save; |
|
|
902 | |
|
|
903 | return old_save; |
854 | } |
904 | } |
855 | |
905 | |
856 | /** Coro ********************************************************************/ |
906 | /** Coro ********************************************************************/ |
857 | |
907 | |
858 | #define PRIO_MAX 3 |
908 | #define PRIO_MAX 3 |
… | |
… | |
861 | #define PRIO_LOW -1 |
911 | #define PRIO_LOW -1 |
862 | #define PRIO_IDLE -3 |
912 | #define PRIO_IDLE -3 |
863 | #define PRIO_MIN -4 |
913 | #define PRIO_MIN -4 |
864 | |
914 | |
865 | /* for Coro.pm */ |
915 | /* for Coro.pm */ |
866 | static GV *coro_current, *coro_idle; |
916 | static SV *coro_current; |
867 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
917 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
868 | static int coro_nready; |
918 | static int coro_nready; |
869 | |
919 | |
870 | static void |
920 | static void |
871 | coro_enq (SV *coro_sv) |
921 | coro_enq (SV *coro_sv) |
… | |
… | |
904 | coro = SvSTATE (coro_sv); |
954 | coro = SvSTATE (coro_sv); |
905 | |
955 | |
906 | if (coro->flags & CF_READY) |
956 | if (coro->flags & CF_READY) |
907 | return 0; |
957 | return 0; |
908 | |
958 | |
|
|
959 | #if 0 /* this is actually harmless */ |
909 | if (coro->flags & CF_RUNNING) |
960 | if (coro->flags & CF_RUNNING) |
910 | croak ("Coro::ready called on currently running coroutine"); |
961 | croak ("Coro::ready called on currently running coroutine"); |
|
|
962 | #endif |
911 | |
963 | |
912 | coro->flags |= CF_READY; |
964 | coro->flags |= CF_READY; |
913 | |
965 | |
914 | LOCK; |
966 | LOCK; |
915 | coro_enq (SvREFCNT_inc (coro_sv)); |
967 | coro_enq (SvREFCNT_inc (coro_sv)); |
… | |
… | |
925 | } |
977 | } |
926 | |
978 | |
927 | static void |
979 | static void |
928 | prepare_schedule (struct transfer_args *ta) |
980 | prepare_schedule (struct transfer_args *ta) |
929 | { |
981 | { |
930 | SV *current, *prev, *next; |
982 | SV *prev, *next; |
931 | |
|
|
932 | current = GvSV (coro_current); |
|
|
933 | |
983 | |
934 | for (;;) |
984 | for (;;) |
935 | { |
985 | { |
936 | LOCK; |
986 | LOCK; |
937 | next = coro_deq (PRIO_MIN); |
987 | next = coro_deq (PRIO_MIN); |
… | |
… | |
946 | ENTER; |
996 | ENTER; |
947 | SAVETMPS; |
997 | SAVETMPS; |
948 | |
998 | |
949 | PUSHMARK (SP); |
999 | PUSHMARK (SP); |
950 | PUTBACK; |
1000 | PUTBACK; |
951 | call_sv (GvSV (coro_idle), G_DISCARD); |
1001 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
952 | |
1002 | |
953 | FREETMPS; |
1003 | FREETMPS; |
954 | LEAVE; |
1004 | LEAVE; |
955 | } |
1005 | } |
956 | } |
1006 | } |
957 | |
1007 | |
958 | prev = SvRV (current); |
1008 | prev = SvRV (coro_current); |
959 | SvRV (current) = next; |
1009 | SvRV_set (coro_current, next); |
960 | |
1010 | |
961 | /* free this only after the transfer */ |
1011 | /* free this only after the transfer */ |
962 | LOCK; |
1012 | LOCK; |
963 | free_coro_mortal (); |
1013 | free_coro_mortal (); |
964 | UNLOCK; |
1014 | UNLOCK; |
965 | coro_mortal = prev; |
1015 | coro_mortal = prev; |
966 | |
1016 | |
|
|
1017 | assert (!SvROK(prev));//D |
|
|
1018 | assert (!SvROK(next));//D |
|
|
1019 | |
967 | ta->prev = SvSTATE (prev); |
1020 | ta->prev = SvSTATE (prev); |
968 | ta->next = SvSTATE (next); |
1021 | ta->next = SvSTATE (next); |
969 | ta->flags = TRANSFER_SAVE_ALL; |
|
|
970 | |
1022 | |
|
|
1023 | assert (ta->next->flags & CF_READY); |
971 | ta->next->flags &= ~CF_READY; |
1024 | ta->next->flags &= ~CF_READY; |
972 | } |
1025 | } |
973 | |
1026 | |
974 | static void |
1027 | static void |
975 | prepare_cede (struct transfer_args *ta) |
1028 | prepare_cede (struct transfer_args *ta) |
976 | { |
1029 | { |
977 | api_ready (GvSV (coro_current)); |
1030 | api_ready (coro_current); |
978 | |
1031 | |
979 | prepare_schedule (ta); |
1032 | prepare_schedule (ta); |
980 | } |
1033 | } |
981 | |
1034 | |
982 | static void |
1035 | static void |
983 | api_schedule (void) |
1036 | api_schedule (void) |
984 | { |
1037 | { |
985 | dTHX; |
|
|
986 | struct transfer_args ta; |
1038 | struct transfer_args ta; |
987 | |
1039 | |
988 | prepare_schedule (&ta); |
1040 | prepare_schedule (&ta); |
989 | TRANSFER (ta); |
1041 | TRANSFER (ta); |
990 | } |
1042 | } |
991 | |
1043 | |
992 | static void |
1044 | static void |
993 | api_cede (void) |
1045 | api_cede (void) |
994 | { |
1046 | { |
995 | dTHX; |
|
|
996 | struct transfer_args ta; |
1047 | struct transfer_args ta; |
997 | |
1048 | |
998 | prepare_cede (&ta); |
1049 | prepare_cede (&ta); |
999 | TRANSFER (ta); |
1050 | TRANSFER (ta); |
1000 | } |
1051 | } |
… | |
… | |
1010 | #endif |
1061 | #endif |
1011 | BOOT_PAGESIZE; |
1062 | BOOT_PAGESIZE; |
1012 | |
1063 | |
1013 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1064 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1014 | |
1065 | |
1015 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
1066 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); |
1016 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
1067 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); |
1017 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
1068 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV)); |
|
|
1069 | newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV)); |
|
|
1070 | newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); |
1018 | |
1071 | |
1019 | main_mainstack = PL_mainstack; |
1072 | main_mainstack = PL_mainstack; |
1020 | |
1073 | |
1021 | coroapi.ver = CORO_API_VERSION; |
1074 | coroapi.ver = CORO_API_VERSION; |
1022 | coroapi.transfer = api_transfer; |
1075 | coroapi.transfer = api_transfer; |
… | |
… | |
1032 | HV *hv; |
1085 | HV *hv; |
1033 | int i; |
1086 | int i; |
1034 | |
1087 | |
1035 | Newz (0, coro, 1, struct coro); |
1088 | Newz (0, coro, 1, struct coro); |
1036 | coro->args = newAV (); |
1089 | coro->args = newAV (); |
|
|
1090 | coro->save = CORO_SAVE_ALL; |
|
|
1091 | coro->flags = CF_NEW; |
1037 | |
1092 | |
1038 | hv = newHV (); |
1093 | hv = newHV (); |
1039 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1094 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1040 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1095 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1041 | |
1096 | |
1042 | for (i = 1; i < items; i++) |
1097 | for (i = 1; i < items; i++) |
1043 | av_push (coro->args, newSVsv (ST (i))); |
1098 | av_push (coro->args, newSVsv (ST (i))); |
1044 | } |
1099 | } |
1045 | OUTPUT: |
1100 | OUTPUT: |
|
|
1101 | RETVAL |
|
|
1102 | |
|
|
1103 | int |
|
|
1104 | save (SV *coro, int new_save = -1) |
|
|
1105 | CODE: |
|
|
1106 | RETVAL = api_save (coro, new_save); |
|
|
1107 | OUTPUT: |
1046 | RETVAL |
1108 | RETVAL |
1047 | |
1109 | |
1048 | void |
1110 | void |
1049 | _set_stacklevel (...) |
1111 | _set_stacklevel (...) |
1050 | ALIAS: |
1112 | ALIAS: |
1051 | Coro::State::transfer = 1 |
1113 | Coro::State::transfer = 1 |
1052 | Coro::schedule = 2 |
1114 | Coro::schedule = 2 |
1053 | Coro::cede = 3 |
1115 | Coro::cede = 3 |
1054 | Coro::Cont::yield = 4 |
|
|
1055 | CODE: |
1116 | CODE: |
1056 | { |
1117 | { |
1057 | struct transfer_args ta; |
1118 | struct transfer_args ta; |
1058 | |
1119 | |
1059 | switch (ix) |
1120 | switch (ix) |
1060 | { |
1121 | { |
1061 | case 0: |
1122 | case 0: |
1062 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
1123 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
1063 | ta.next = 0; |
1124 | ta.next = 0; |
1064 | ta.flags = TRANSFER_SET_STACKLEVEL; |
|
|
1065 | break; |
1125 | break; |
1066 | |
1126 | |
1067 | case 1: |
1127 | case 1: |
1068 | if (items != 3) |
1128 | if (items != 2) |
1069 | croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items); |
1129 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
1070 | |
1130 | |
1071 | prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2))); |
1131 | prepare_transfer (&ta, ST (0), ST (1)); |
1072 | break; |
1132 | break; |
1073 | |
1133 | |
1074 | case 2: |
1134 | case 2: |
1075 | prepare_schedule (&ta); |
1135 | prepare_schedule (&ta); |
1076 | break; |
1136 | break; |
1077 | |
1137 | |
1078 | case 3: |
1138 | case 3: |
1079 | prepare_cede (&ta); |
1139 | prepare_cede (&ta); |
1080 | break; |
1140 | break; |
1081 | |
|
|
1082 | case 4: |
|
|
1083 | { |
|
|
1084 | SV *yieldstack; |
|
|
1085 | SV *sv; |
|
|
1086 | AV *defav = GvAV (PL_defgv); |
|
|
1087 | |
|
|
1088 | yieldstack = *hv_fetch ( |
|
|
1089 | (HV *)SvRV (GvSV (coro_current)), |
|
|
1090 | "yieldstack", sizeof ("yieldstack") - 1, |
|
|
1091 | 0 |
|
|
1092 | ); |
|
|
1093 | |
|
|
1094 | /* set up @_ -- ugly */ |
|
|
1095 | av_clear (defav); |
|
|
1096 | av_fill (defav, items - 1); |
|
|
1097 | while (items--) |
|
|
1098 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
|
|
1099 | |
|
|
1100 | sv = av_pop ((AV *)SvRV (yieldstack)); |
|
|
1101 | ta.prev = SvSTATE (*av_fetch ((AV *)SvRV (sv), 0, 0)); |
|
|
1102 | ta.next = SvSTATE (*av_fetch ((AV *)SvRV (sv), 1, 0)); |
|
|
1103 | ta.flags = 0; |
|
|
1104 | SvREFCNT_dec (sv); |
|
|
1105 | } |
|
|
1106 | break; |
|
|
1107 | |
|
|
1108 | } |
1141 | } |
1109 | |
1142 | |
1110 | TRANSFER (ta); |
1143 | TRANSFER (ta); |
1111 | } |
1144 | } |
1112 | |
1145 | |
… | |
… | |
1156 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1189 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1157 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1190 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1158 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1191 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1159 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1192 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1160 | |
1193 | |
1161 | coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV); |
1194 | coro_current = get_sv ("Coro::current", FALSE); |
1162 | coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV); |
1195 | SvREADONLY_on (coro_current); |
1163 | |
1196 | |
1164 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1197 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1165 | coro_ready[i] = newAV (); |
1198 | coro_ready[i] = newAV (); |
1166 | |
1199 | |
1167 | { |
1200 | { |
1168 | SV *sv = perl_get_sv("Coro::API", 1); |
1201 | SV *sv = perl_get_sv("Coro::API", 1); |
1169 | |
1202 | |
1170 | coroapi.schedule = api_schedule; |
1203 | coroapi.schedule = api_schedule; |
|
|
1204 | coroapi.save = api_save; |
1171 | coroapi.cede = api_cede; |
1205 | coroapi.cede = api_cede; |
1172 | coroapi.ready = api_ready; |
1206 | coroapi.ready = api_ready; |
1173 | coroapi.is_ready = api_is_ready; |
1207 | coroapi.is_ready = api_is_ready; |
1174 | coroapi.nready = &coro_nready; |
1208 | coroapi.nready = &coro_nready; |
1175 | coroapi.current = coro_current; |
1209 | coroapi.current = coro_current; |
… | |
… | |
1177 | GCoroAPI = &coroapi; |
1211 | GCoroAPI = &coroapi; |
1178 | sv_setiv (sv, (IV)&coroapi); |
1212 | sv_setiv (sv, (IV)&coroapi); |
1179 | SvREADONLY_on (sv); |
1213 | SvREADONLY_on (sv); |
1180 | } |
1214 | } |
1181 | } |
1215 | } |
|
|
1216 | |
|
|
1217 | void |
|
|
1218 | _set_current (SV *current) |
|
|
1219 | PROTOTYPE: $ |
|
|
1220 | CODE: |
|
|
1221 | SvREFCNT_dec (SvRV (coro_current)); |
|
|
1222 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
1182 | |
1223 | |
1183 | int |
1224 | int |
1184 | prio (Coro::State coro, int newprio = 0) |
1225 | prio (Coro::State coro, int newprio = 0) |
1185 | ALIAS: |
1226 | ALIAS: |
1186 | nice = 1 |
1227 | nice = 1 |
… | |
… | |
1228 | |
1269 | |
1229 | SV * |
1270 | SV * |
1230 | _get_state () |
1271 | _get_state () |
1231 | CODE: |
1272 | CODE: |
1232 | { |
1273 | { |
1233 | struct { |
1274 | struct io_state *data; |
1234 | int errorno; |
|
|
1235 | int laststype; |
|
|
1236 | int laststatval; |
|
|
1237 | Stat_t statcache; |
|
|
1238 | } data; |
|
|
1239 | |
1275 | |
|
|
1276 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
1277 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
1278 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
1279 | SvPOK_only (RETVAL); |
|
|
1280 | |
1240 | data.errorno = errno; |
1281 | data->errorno = errno; |
1241 | data.laststype = PL_laststype; |
1282 | data->laststype = PL_laststype; |
1242 | data.laststatval = PL_laststatval; |
1283 | data->laststatval = PL_laststatval; |
1243 | data.statcache = PL_statcache; |
1284 | data->statcache = PL_statcache; |
1244 | |
|
|
1245 | RETVAL = newSVpvn ((char *)&data, sizeof data); |
|
|
1246 | } |
1285 | } |
1247 | OUTPUT: |
1286 | OUTPUT: |
1248 | RETVAL |
1287 | RETVAL |
1249 | |
1288 | |
1250 | void |
1289 | void |
1251 | _set_state (char *data_) |
1290 | _set_state (char *data_) |
1252 | PROTOTYPE: $ |
1291 | PROTOTYPE: $ |
1253 | CODE: |
1292 | CODE: |
1254 | { |
1293 | { |
1255 | struct { |
1294 | struct io_state *data = (void *)data_; |
1256 | int errorno; |
|
|
1257 | int laststype; |
|
|
1258 | int laststatval; |
|
|
1259 | Stat_t statcache; |
|
|
1260 | } *data = (void *)data_; |
|
|
1261 | |
1295 | |
1262 | errno = data->errorno; |
1296 | errno = data->errorno; |
1263 | PL_laststype = data->laststype; |
1297 | PL_laststype = data->laststype; |
1264 | PL_laststatval = data->laststatval; |
1298 | PL_laststatval = data->laststatval; |
1265 | PL_statcache = data->statcache; |
1299 | PL_statcache = data->statcache; |
1266 | } |
1300 | } |
|
|
1301 | |