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Comparing Coro/Coro/State.xs (file contents):
Revision 1.147 by root, Mon Mar 19 15:50:48 2007 UTC vs.
Revision 1.181 by root, Wed Oct 3 17:37:33 2007 UTC

… …
88/* prefer perl internal functions over our own? */ 88/* prefer perl internal functions over our own? */
89#ifndef CORO_PREFER_PERL_FUNCTIONS 89#ifndef CORO_PREFER_PERL_FUNCTIONS
90# define CORO_PREFER_PERL_FUNCTIONS 0 90# define CORO_PREFER_PERL_FUNCTIONS 0
91#endif 91#endif
92 92
93/* The next macro should declare a variable stacklevel that contains and approximation 93/* The next macros try to return the current stack pointer, in an as
94 * to the current C stack pointer. Its property is that it changes with each call 94 * portable way as possible. */
95 * and should be unique. */
96#define dSTACKLEVEL int stacklevel 95#define dSTACKLEVEL volatile char stacklevel
97#define STACKLEVEL ((void *)&stacklevel) 96#define STACKLEVEL ((void *)&stacklevel)
98 97
99#define IN_DESTRUCT (PL_main_cv == Nullcv) 98#define IN_DESTRUCT (PL_main_cv == Nullcv)
100 99
101#if __GNUC__ >= 3 100#if __GNUC__ >= 3
… …
129}; 128};
130 129
131static size_t coro_stacksize = CORO_STACKSIZE; 130static size_t coro_stacksize = CORO_STACKSIZE;
132static struct CoroAPI coroapi; 131static struct CoroAPI coroapi;
133static AV *main_mainstack; /* used to differentiate between $main and others */ 132static AV *main_mainstack; /* used to differentiate between $main and others */
133static JMPENV *main_top_env;
134static HV *coro_state_stash, *coro_stash; 134static HV *coro_state_stash, *coro_stash;
135static SV *coro_mortal; /* will be freed after next transfer */ 135static SV *coro_mortal; /* will be freed after next transfer */
136 136
137static GV *irsgv; /* $/ */
138
139/* async_pool helper stuff */
140static SV *sv_pool_rss;
141static SV *sv_pool_size;
142static AV *av_async_pool;
143
137static struct coro_cctx *cctx_first; 144static struct coro_cctx *cctx_first;
138static int cctx_count, cctx_idle; 145static int cctx_count, cctx_idle;
146
147enum {
148 CC_MAPPED = 0x01,
149 CC_NOREUSE = 0x02, /* throw this away after tracing */
150 CC_TRACE = 0x04,
151 CC_TRACE_SUB = 0x08, /* trace sub calls */
152 CC_TRACE_LINE = 0x10, /* trace each statement */
153 CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE,
154};
139 155
140/* this is a structure representing a c-level coroutine */ 156/* this is a structure representing a c-level coroutine */
141typedef struct coro_cctx { 157typedef struct coro_cctx {
142 struct coro_cctx *next; 158 struct coro_cctx *next;
143 159
… …
152 coro_context cctx; 168 coro_context cctx;
153 169
154#if CORO_USE_VALGRIND 170#if CORO_USE_VALGRIND
155 int valgrind_id; 171 int valgrind_id;
156#endif 172#endif
157 char inuse, mapped; 173 unsigned char flags;
158} coro_cctx; 174} coro_cctx;
159 175
160enum { 176enum {
161 CF_RUNNING = 0x0001, /* coroutine is running */ 177 CF_RUNNING = 0x0001, /* coroutine is running */
162 CF_READY = 0x0002, /* coroutine is ready */ 178 CF_READY = 0x0002, /* coroutine is ready */
… …
170 coro_cctx *cctx; 186 coro_cctx *cctx;
171 187
172 /* data associated with this coroutine (initial args) */ 188 /* data associated with this coroutine (initial args) */
173 AV *args; 189 AV *args;
174 int refcnt; 190 int refcnt;
175 int save; /* CORO_SAVE flags */
176 int flags; /* CF_ flags */ 191 int flags; /* CF_ flags */
177 192
178 /* optionally saved, might be zero */ 193 /* optionally saved, might be zero */
179 AV *defav; /* @_ */ 194 AV *defav; /* @_ */
180 SV *defsv; /* $_ */ 195 SV *defsv; /* $_ */
… …
185 200
186#define VAR(name,type) type name; 201#define VAR(name,type) type name;
187# include "state.h" 202# include "state.h"
188#undef VAR 203#undef VAR
189 204
205 /* statistics */
206 int usecount; /* number of transfers to this coro */
207
190 /* coro process data */ 208 /* coro process data */
191 int prio; 209 int prio;
210 //SV *throw;
211
212 /* async_pool */
213 GV *defoutgv;
214
215 /* linked list */
216 struct coro *next, *prev;
217 HV *hv; /* the perl hash associated with this coro, if any */
192}; 218};
193 219
194typedef struct coro *Coro__State; 220typedef struct coro *Coro__State;
195typedef struct coro *Coro__State_or_hashref; 221typedef struct coro *Coro__State_or_hashref;
196 222
… …
205 231
206/* for Coro.pm */ 232/* for Coro.pm */
207static SV *coro_current; 233static SV *coro_current;
208static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; 234static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
209static int coro_nready; 235static int coro_nready;
236static struct coro *coro_first;
210 237
211/** lowlevel stuff **********************************************************/ 238/** lowlevel stuff **********************************************************/
212 239
213static AV * 240static AV *
214coro_clone_padlist (pTHX_ CV *cv) 241coro_clone_padlist (pTHX_ CV *cv)
… …
279 SvMAGIC (cv) \ 306 SvMAGIC (cv) \
280 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ 307 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
281 ? SvMAGIC (cv) \ 308 ? SvMAGIC (cv) \
282 : mg_find ((SV *)cv, PERL_MAGIC_coro) \ 309 : mg_find ((SV *)cv, PERL_MAGIC_coro) \
283 : 0 310 : 0
311
312static struct coro *
313SvSTATE_ (pTHX_ SV *coro)
314{
315 HV *stash;
316 MAGIC *mg;
317
318 if (SvROK (coro))
319 coro = SvRV (coro);
320
321 if (SvTYPE (coro) != SVt_PVHV)
322 croak ("Coro::State object required");
323
324 stash = SvSTASH (coro);
325 if (stash != coro_stash && stash != coro_state_stash)
326 {
327 /* very slow, but rare, check */
328 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
329 croak ("Coro::State object required");
330 }
331
332 mg = CORO_MAGIC (coro);
333 return (struct coro *)mg->mg_ptr;
334}
335
336#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
284 337
285/* the next two functions merely cache the padlists */ 338/* the next two functions merely cache the padlists */
286static void 339static void
287get_padlist (pTHX_ CV *cv) 340get_padlist (pTHX_ CV *cv)
288{ 341{
… …
327 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 380 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
328} 381}
329 382
330/** load & save, init *******************************************************/ 383/** load & save, init *******************************************************/
331 384
332#define SB do {
333#define SE } while (0)
334
335#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
336
337static void 385static void
338load_perl (pTHX_ Coro__State c) 386load_perl (pTHX_ Coro__State c)
339{ 387{
340#define VAR(name,type) PL_ ## name = c->name; 388#define VAR(name,type) PL_ ## name = c->name;
341# include "state.h" 389# include "state.h"
342#undef VAR 390#undef VAR
343 391
344 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 392 GvSV (PL_defgv) = c->defsv;
345 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 393 GvAV (PL_defgv) = c->defav;
346 if (c->errsv) REPLACE_SV (ERRSV , c->errsv); 394 GvSV (PL_errgv) = c->errsv;
347 if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh); 395 PL_defoutgv = c->deffh;
348 396 PL_rs = c->irssv;
349 if (c->irssv) 397 GvSV (irsgv) = c->irssv_sv;
350 {
351 if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv))
352 {
353 SvREFCNT_dec (c->irssv);
354 c->irssv = 0;
355 }
356 else
357 {
358 REPLACE_SV (PL_rs, c->irssv);
359 if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
360 sv_setsv (c->irssv_sv, PL_rs);
361 }
362 }
363 398
364 { 399 {
365 dSP; 400 dSP;
366 CV *cv; 401 CV *cv;
367 402
… …
373 CvPADLIST (cv) = (AV *)POPs; 408 CvPADLIST (cv) = (AV *)POPs;
374 } 409 }
375 410
376 PUTBACK; 411 PUTBACK;
377 } 412 }
378 assert (!PL_comppad || AvARRAY (PL_comppad));//D
379} 413}
380 414
381static void 415static void
382save_perl (pTHX_ Coro__State c) 416save_perl (pTHX_ Coro__State c)
383{ 417{
384 assert (!PL_comppad || AvARRAY (PL_comppad));//D
385 { 418 {
386 dSP; 419 dSP;
387 I32 cxix = cxstack_ix; 420 I32 cxix = cxstack_ix;
388 PERL_CONTEXT *ccstk = cxstack; 421 PERL_CONTEXT *ccstk = cxstack;
389 PERL_SI *top_si = PL_curstackinfo; 422 PERL_SI *top_si = PL_curstackinfo;
… …
391 /* 424 /*
392 * the worst thing you can imagine happens first - we have to save 425 * the worst thing you can imagine happens first - we have to save
393 * (and reinitialize) all cv's in the whole callchain :( 426 * (and reinitialize) all cv's in the whole callchain :(
394 */ 427 */
395 428
396 EXTEND (SP, 3 + 1);
397 PUSHs (Nullsv); 429 XPUSHs (Nullsv);
398 /* this loop was inspired by pp_caller */ 430 /* this loop was inspired by pp_caller */
399 for (;;) 431 for (;;)
400 { 432 {
401 while (cxix >= 0) 433 while (cxix >= 0)
402 { 434 {
403 PERL_CONTEXT *cx = &ccstk[cxix--]; 435 PERL_CONTEXT *cx = &ccstk[cxix--];
404 436
405 if (CxTYPE (cx) == CXt_SUB) 437 if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)
406 { 438 {
407 CV *cv = cx->blk_sub.cv; 439 CV *cv = cx->blk_sub.cv;
408 440
409 if (CvDEPTH (cv)) 441 if (CvDEPTH (cv))
410 { 442 {
… …
421 453
422 if (top_si->si_type == PERLSI_MAIN) 454 if (top_si->si_type == PERLSI_MAIN)
423 break; 455 break;
424 456
425 top_si = top_si->si_prev; 457 top_si = top_si->si_prev;
426 ccstk = top_si->si_cxstack; 458 ccstk = top_si->si_cxstack;
427 cxix = top_si->si_cxix; 459 cxix = top_si->si_cxix;
428 } 460 }
429 461
430 PUTBACK; 462 PUTBACK;
431 } 463 }
432 464
433 c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; 465 c->defav = GvAV (PL_defgv);
434 c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; 466 c->defsv = DEFSV;
435 c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; 467 c->errsv = ERRSV;
436 c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0; 468 c->deffh = PL_defoutgv;
437 c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; 469 c->irssv = PL_rs;
470 c->irssv_sv = GvSV (irsgv);
438 471
439#define VAR(name,type)c->name = PL_ ## name; 472#define VAR(name,type)c->name = PL_ ## name;
440# include "state.h" 473# include "state.h"
441#undef VAR 474#undef VAR
442} 475}
… …
451# define coro_init_stacks init_stacks 484# define coro_init_stacks init_stacks
452#else 485#else
453static void 486static void
454coro_init_stacks (pTHX) 487coro_init_stacks (pTHX)
455{ 488{
456 PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT)); 489 PL_curstackinfo = new_stackinfo(64, 6);
457 PL_curstackinfo->si_type = PERLSI_MAIN; 490 PL_curstackinfo->si_type = PERLSI_MAIN;
458 PL_curstack = PL_curstackinfo->si_stack; 491 PL_curstack = PL_curstackinfo->si_stack;
459 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 492 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
460 493
461 PL_stack_base = AvARRAY(PL_curstack); 494 PL_stack_base = AvARRAY(PL_curstack);
462 PL_stack_sp = PL_stack_base; 495 PL_stack_sp = PL_stack_base;
463 PL_stack_max = PL_stack_base + AvMAX(PL_curstack); 496 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
464 497
465 New(50,PL_tmps_stack,128,SV*); 498 New(50,PL_tmps_stack,64,SV*);
466 PL_tmps_floor = -1; 499 PL_tmps_floor = -1;
467 PL_tmps_ix = -1; 500 PL_tmps_ix = -1;
468 PL_tmps_max = 128; 501 PL_tmps_max = 64;
469 502
470 New(54,PL_markstack,32,I32); 503 New(54,PL_markstack,16,I32);
471 PL_markstack_ptr = PL_markstack; 504 PL_markstack_ptr = PL_markstack;
472 PL_markstack_max = PL_markstack + 32; 505 PL_markstack_max = PL_markstack + 16;
473 506
474#ifdef SET_MARK_OFFSET 507#ifdef SET_MARK_OFFSET
475 SET_MARK_OFFSET; 508 SET_MARK_OFFSET;
476#endif 509#endif
477 510
478 New(54,PL_scopestack,32,I32); 511 New(54,PL_scopestack,16,I32);
479 PL_scopestack_ix = 0; 512 PL_scopestack_ix = 0;
480 PL_scopestack_max = 32; 513 PL_scopestack_max = 16;
481 514
482 New(54,PL_savestack,64,ANY); 515 New(54,PL_savestack,64,ANY);
483 PL_savestack_ix = 0; 516 PL_savestack_ix = 0;
484 PL_savestack_max = 64; 517 PL_savestack_max = 64;
485 518
486#if !PERL_VERSION_ATLEAST (5,9,0) 519#if !PERL_VERSION_ATLEAST (5,9,0)
487 New(54,PL_retstack,16,OP*); 520 New(54,PL_retstack,4,OP*);
488 PL_retstack_ix = 0; 521 PL_retstack_ix = 0;
489 PL_retstack_max = 16; 522 PL_retstack_max = 4;
490#endif 523#endif
491} 524}
492#endif 525#endif
493 526
494/* 527/*
495 * destroy the stacks, the callchain etc... 528 * destroy the stacks, the callchain etc...
496 */ 529 */
497static void 530static void
498coro_destroy_stacks (pTHX) 531coro_destroy_stacks (pTHX)
499{ 532{
500 if (!IN_DESTRUCT)
501 {
502 /* restore all saved variables and stuff */
503 LEAVE_SCOPE (0);
504 assert (PL_tmps_floor == -1);
505
506 /* free all temporaries */
507 FREETMPS;
508 assert (PL_tmps_ix == -1);
509
510 /* unwind all extra stacks */
511 POPSTACK_TO (PL_mainstack);
512
513 /* unwind main stack */
514 dounwind (-1);
515 }
516
517 while (PL_curstackinfo->si_next) 533 while (PL_curstackinfo->si_next)
518 PL_curstackinfo = PL_curstackinfo->si_next; 534 PL_curstackinfo = PL_curstackinfo->si_next;
519 535
520 while (PL_curstackinfo) 536 while (PL_curstackinfo)
521 { 537 {
… …
536#if !PERL_VERSION_ATLEAST (5,9,0) 552#if !PERL_VERSION_ATLEAST (5,9,0)
537 Safefree (PL_retstack); 553 Safefree (PL_retstack);
538#endif 554#endif
539} 555}
540 556
557static size_t
558coro_rss (pTHX_ struct coro *coro)
559{
560 size_t rss = sizeof (coro);
561
562 if (coro->mainstack)
563 {
564 if (coro->flags & CF_RUNNING)
565 {
566 #define VAR(name,type)coro->name = PL_ ## name;
567 # include "state.h"
568 #undef VAR
569 }
570
571 rss += sizeof (coro->curstackinfo);
572 rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
573 rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
574 rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
575 rss += coro->tmps_max * sizeof (SV *);
576 rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
577 rss += coro->scopestack_max * sizeof (I32);
578 rss += coro->savestack_max * sizeof (ANY);
579
580#if !PERL_VERSION_ATLEAST (5,9,0)
581 rss += coro->retstack_max * sizeof (OP *);
582#endif
583 }
584
585 return rss;
586}
587
541/** coroutine stack handling ************************************************/ 588/** coroutine stack handling ************************************************/
542 589
543static void 590static void
544setup_coro (pTHX_ struct coro *coro) 591coro_setup (pTHX_ struct coro *coro)
545{ 592{
546 /* 593 /*
547 * emulate part of the perl startup here. 594 * emulate part of the perl startup here.
548 */ 595 */
549 coro_init_stacks (aTHX); 596 coro_init_stacks (aTHX);
550 597
598 PL_runops = RUNOPS_DEFAULT;
551 PL_curcop = &PL_compiling; 599 PL_curcop = &PL_compiling;
552 PL_in_eval = EVAL_NULL; 600 PL_in_eval = EVAL_NULL;
553 PL_comppad = 0; 601 PL_comppad = 0;
554 PL_curpm = 0; 602 PL_curpm = 0;
555 PL_localizing = 0; 603 PL_localizing = 0;
556 PL_dirty = 0; 604 PL_dirty = 0;
557 PL_restartop = 0; 605 PL_restartop = 0;
606
607 GvSV (PL_defgv) = NEWSV (0, 0);
608 GvAV (PL_defgv) = coro->args; coro->args = 0;
609 GvSV (PL_errgv) = NEWSV (0, 0);
610 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
611 PL_rs = newSVsv (GvSV (irsgv));
612
613 {
614 IO *io = newIO ();
615 PL_defoutgv = newGVgen ("Coro");
616 GvIOp(PL_defoutgv) = io;
617 IoTYPE (io) = IoTYPE_WRONLY;
618 IoOFP (io) = IoIFP (io) = PerlIO_stdout ();
619 IoFLAGS (io) |= IOf_FLUSH;
620 }
558 621
559 { 622 {
560 dSP; 623 dSP;
561 LOGOP myop; 624 LOGOP myop;
562 625
563 SvREFCNT_dec (GvAV (PL_defgv));
564 GvAV (PL_defgv) = coro->args; coro->args = 0;
565
566 Zero (&myop, 1, LOGOP); 626 Zero (&myop, 1, LOGOP);
567 myop.op_next = Nullop; 627 myop.op_next = Nullop;
568 myop.op_flags = OPf_WANT_VOID; 628 myop.op_flags = OPf_WANT_VOID;
569 629
570 PUSHMARK (SP); 630 PUSHMARK (SP);
571 XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); 631 XPUSHs (av_shift (GvAV (PL_defgv)));
572 PUTBACK; 632 PUTBACK;
573 PL_op = (OP *)&myop; 633 PL_op = (OP *)&myop;
574 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 634 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
575 SPAGAIN; 635 SPAGAIN;
576 } 636 }
577 637
578 ENTER; /* necessary e.g. for dounwind */ 638 ENTER; /* necessary e.g. for dounwind */
579} 639}
580 640
581static void 641static void
642coro_destroy (pTHX_ struct coro *coro)
643{
644 if (!IN_DESTRUCT)
645 {
646 /* restore all saved variables and stuff */
647 LEAVE_SCOPE (0);
648 assert (PL_tmps_floor == -1);
649
650 /* free all temporaries */
651 FREETMPS;
652 assert (PL_tmps_ix == -1);
653
654 /* unwind all extra stacks */
655 POPSTACK_TO (PL_mainstack);
656
657 /* unwind main stack */
658 dounwind (-1);
659 }
660
661 SvREFCNT_dec (GvSV (PL_defgv));
662 SvREFCNT_dec (GvAV (PL_defgv));
663 SvREFCNT_dec (GvSV (PL_errgv));
664 SvREFCNT_dec (PL_defoutgv);
665 SvREFCNT_dec (PL_rs);
666 SvREFCNT_dec (GvSV (irsgv));
667
668 SvREFCNT_dec (coro->defoutgv);
669 //SvREFCNT_dec (coro->throw);
670
671 coro_destroy_stacks (aTHX);
672}
673
674static void
582free_coro_mortal (pTHX) 675free_coro_mortal (pTHX)
583{ 676{
584 if (coro_mortal) 677 if (coro_mortal)
585 { 678 {
586 SvREFCNT_dec (coro_mortal); 679 SvREFCNT_dec (coro_mortal);
587 coro_mortal = 0; 680 coro_mortal = 0;
588 } 681 }
589} 682}
590 683
684static int
685runops_trace (pTHX)
686{
687 COP *oldcop = 0;
688 int oldcxix = -2;
689 struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */
690 coro_cctx *cctx = coro->cctx;
691
692 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
693 {
694 PERL_ASYNC_CHECK ();
695
696 if (cctx->flags & CC_TRACE_ALL)
697 {
698 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
699 {
700 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
701 SV **bot, **top;
702 AV *av = newAV (); /* return values */
703 SV **cb;
704 dSP;
705
706 GV *gv = CvGV (cx->blk_sub.cv);
707 SV *fullname = sv_2mortal (newSV (0));
708 if (isGV (gv))
709 gv_efullname3 (fullname, gv, 0);
710
711 bot = PL_stack_base + cx->blk_oldsp + 1;
712 top = cx->blk_gimme == G_ARRAY ? SP + 1
713 : cx->blk_gimme == G_SCALAR ? bot + 1
714 : bot;
715
716 while (bot < top)
717 av_push (av, SvREFCNT_inc (*bot++));
718
719 PL_runops = RUNOPS_DEFAULT;
720 ENTER;
721 SAVETMPS;
722 EXTEND (SP, 3);
723 PUSHMARK (SP);
724 PUSHs (&PL_sv_no);
725 PUSHs (fullname);
726 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
727 PUTBACK;
728 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
729 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
730 SPAGAIN;
731 FREETMPS;
732 LEAVE;
733 PL_runops = runops_trace;
734 }
735
736 if (oldcop != PL_curcop)
737 {
738 oldcop = PL_curcop;
739
740 if (PL_curcop != &PL_compiling)
741 {
742 SV **cb;
743
744 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
745 {
746 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
747
748 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
749 {
750 runops_proc_t old_runops = PL_runops;
751 dSP;
752 GV *gv = CvGV (cx->blk_sub.cv);
753 SV *fullname = sv_2mortal (newSV (0));
754
755 if (isGV (gv))
756 gv_efullname3 (fullname, gv, 0);
757
758 PL_runops = RUNOPS_DEFAULT;
759 ENTER;
760 SAVETMPS;
761 EXTEND (SP, 3);
762 PUSHMARK (SP);
763 PUSHs (&PL_sv_yes);
764 PUSHs (fullname);
765 PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
766 PUTBACK;
767 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
768 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
769 SPAGAIN;
770 FREETMPS;
771 LEAVE;
772 PL_runops = runops_trace;
773 }
774
775 oldcxix = cxstack_ix;
776 }
777
778 if (cctx->flags & CC_TRACE_LINE)
779 {
780 dSP;
781
782 PL_runops = RUNOPS_DEFAULT;
783 ENTER;
784 SAVETMPS;
785 EXTEND (SP, 3);
786 PL_runops = RUNOPS_DEFAULT;
787 PUSHMARK (SP);
788 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
789 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
790 PUTBACK;
791 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
792 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
793 SPAGAIN;
794 FREETMPS;
795 LEAVE;
796 PL_runops = runops_trace;
797 }
798 }
799 }
800 }
801 }
802
803 TAINT_NOT;
804 return 0;
805}
806
591/* inject a fake call to Coro::State::_cctx_init into the execution */ 807/* inject a fake call to Coro::State::_cctx_init into the execution */
808/* _cctx_init should be careful, as it could be called at almost any time */
809/* during execution of a perl program */
592static void NOINLINE 810static void NOINLINE
593prepare_cctx (pTHX_ coro_cctx *cctx) 811prepare_cctx (pTHX_ coro_cctx *cctx)
594{ 812{
595 dSP; 813 dSP;
596 LOGOP myop; 814 LOGOP myop;
815
816 PL_top_env = &PL_start_env;
817
818 if (cctx->flags & CC_TRACE)
819 PL_runops = runops_trace;
597 820
598 Zero (&myop, 1, LOGOP); 821 Zero (&myop, 1, LOGOP);
599 myop.op_next = PL_op; 822 myop.op_next = PL_op;
600 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 823 myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
601 824
… …
607 PL_op = (OP *)&myop; 830 PL_op = (OP *)&myop;
608 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 831 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
609 SPAGAIN; 832 SPAGAIN;
610} 833}
611 834
835/*
836 * this is a _very_ stripped down perl interpreter ;)
837 */
612static void 838static void
613coro_run (void *arg) 839coro_run (void *arg)
614{ 840{
615 dTHX; 841 dTHX;
616 842
617 /* coro_run is the alternative tail of transfer(), so unlock here. */ 843 /* coro_run is the alternative tail of transfer(), so unlock here. */
618 UNLOCK; 844 UNLOCK;
619 845
620 /* 846 /* we now skip the entersub that lead to transfer() */
621 * this is a _very_ stripped down perl interpreter ;) 847 PL_op = PL_op->op_next;
622 */
623 PL_top_env = &PL_start_env;
624 848
625 /* inject call to cctx_init */ 849 /* inject a fake subroutine call to cctx_init */
626 prepare_cctx (aTHX_ (coro_cctx *)arg); 850 prepare_cctx (aTHX_ (coro_cctx *)arg);
627 851
628 /* somebody will hit me for both perl_run and PL_restartop */ 852 /* somebody or something will hit me for both perl_run and PL_restartop */
629 PL_restartop = PL_op; 853 PL_restartop = PL_op;
630 perl_run (PL_curinterp); 854 perl_run (PL_curinterp);
631 855
632 fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); 856 /*
633 abort (); 857 * If perl-run returns we assume exit() was being called or the coro
858 * fell off the end, which seems to be the only valid (non-bug)
859 * reason for perl_run to return. We try to exit by jumping to the
860 * bootstrap-time "top" top_env, as we cannot restore the "main"
861 * coroutine as Coro has no such concept
862 */
863 PL_top_env = main_top_env;
864 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
634} 865}
635 866
636static coro_cctx * 867static coro_cctx *
637cctx_new () 868cctx_new ()
638{ 869{
… …
655# if CORO_STACKGUARD 886# if CORO_STACKGUARD
656 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); 887 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
657# endif 888# endif
658 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; 889 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
659 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; 890 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
660 cctx->mapped = 1; 891 cctx->flags |= CC_MAPPED;
661 } 892 }
662 else 893 else
663#endif 894#endif
664 { 895 {
665 cctx->ssize = coro_stacksize * (long)sizeof (long); 896 cctx->ssize = coro_stacksize * (long)sizeof (long);
… …
692#if CORO_USE_VALGRIND 923#if CORO_USE_VALGRIND
693 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); 924 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
694#endif 925#endif
695 926
696#if HAVE_MMAP 927#if HAVE_MMAP
697 if (cctx->mapped) 928 if (cctx->flags & CC_MAPPED)
698 munmap (cctx->sptr, cctx->ssize); 929 munmap (cctx->sptr, cctx->ssize);
699 else 930 else
700#endif 931#endif
701 Safefree (cctx->sptr); 932 Safefree (cctx->sptr);
702 933
… …
710 { 941 {
711 coro_cctx *cctx = cctx_first; 942 coro_cctx *cctx = cctx_first;
712 cctx_first = cctx->next; 943 cctx_first = cctx->next;
713 --cctx_idle; 944 --cctx_idle;
714 945
715 if (cctx->ssize >= coro_stacksize) 946 if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
716 return cctx; 947 return cctx;
717 948
718 cctx_destroy (cctx); 949 cctx_destroy (cctx);
719 } 950 }
720 951
721 PL_op = PL_op->op_next;
722 return cctx_new (); 952 return cctx_new ();
723} 953}
724 954
725static void 955static void
726cctx_put (coro_cctx *cctx) 956cctx_put (coro_cctx *cctx)
… …
730 { 960 {
731 coro_cctx *first = cctx_first; 961 coro_cctx *first = cctx_first;
732 cctx_first = first->next; 962 cctx_first = first->next;
733 --cctx_idle; 963 --cctx_idle;
734 964
735 assert (!first->inuse);
736 cctx_destroy (first); 965 cctx_destroy (first);
737 } 966 }
738 967
739 ++cctx_idle; 968 ++cctx_idle;
740 cctx->next = cctx_first; 969 cctx->next = cctx_first;
741 cctx_first = cctx; 970 cctx_first = cctx;
742} 971}
743 972
744/** coroutine switching *****************************************************/ 973/** coroutine switching *****************************************************/
745 974
746/* never call directly, always through the coro_state_transfer global variable */ 975static void NOINLINE
976transfer_check (pTHX_ struct coro *prev, struct coro *next)
977{
978 if (prev != next)
979 {
980 if (!(prev->flags & (CF_RUNNING | CF_NEW)))
981 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
982
983 if (next->flags & CF_RUNNING)
984 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
985
986 if (next->flags & CF_DESTROYED)
987 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
988
989 if (PL_lex_state != LEX_NOTPARSING)
990 croak ("Coro::State::transfer called while parsing, but this is not supported");
991 }
992}
993
994/* always use the TRANSFER macro */
747static void NOINLINE 995static void NOINLINE
748transfer (pTHX_ struct coro *prev, struct coro *next) 996transfer (pTHX_ struct coro *prev, struct coro *next)
749{ 997{
750 dSTACKLEVEL; 998 dSTACKLEVEL;
751 999
… …
761 1009
762 if (prev->flags & CF_NEW) 1010 if (prev->flags & CF_NEW)
763 { 1011 {
764 /* create a new empty context */ 1012 /* create a new empty context */
765 Newz (0, prev->cctx, 1, coro_cctx); 1013 Newz (0, prev->cctx, 1, coro_cctx);
766 prev->cctx->inuse = 1;
767 prev->flags &= ~CF_NEW; 1014 prev->flags &= ~CF_NEW;
768 prev->flags |= CF_RUNNING; 1015 prev->flags |= CF_RUNNING;
769 } 1016 }
770
771 /*TODO: must not croak here */
772 if (!prev->flags & CF_RUNNING)
773 croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
774
775 if (next->flags & CF_RUNNING)
776 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
777
778 if (next->flags & CF_DESTROYED)
779 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
780 1017
781 prev->flags &= ~CF_RUNNING; 1018 prev->flags &= ~CF_RUNNING;
782 next->flags |= CF_RUNNING; 1019 next->flags |= CF_RUNNING;
783 1020
784 LOCK; 1021 LOCK;
… …
788 /* need to start coroutine */ 1025 /* need to start coroutine */
789 next->flags &= ~CF_NEW; 1026 next->flags &= ~CF_NEW;
790 /* first get rid of the old state */ 1027 /* first get rid of the old state */
791 save_perl (aTHX_ prev); 1028 save_perl (aTHX_ prev);
792 /* setup coroutine call */ 1029 /* setup coroutine call */
793 setup_coro (aTHX_ next); 1030 coro_setup (aTHX_ next);
794 /* need a new stack */
795 assert (!next->cctx);
796 } 1031 }
797 else 1032 else
798 { 1033 {
799 /* coroutine already started */ 1034 /* coroutine already started */
800 save_perl (aTHX_ prev); 1035 save_perl (aTHX_ prev);
… …
802 } 1037 }
803 1038
804 prev__cctx = prev->cctx; 1039 prev__cctx = prev->cctx;
805 1040
806 /* possibly "free" the cctx */ 1041 /* possibly "free" the cctx */
807 if (prev__cctx->idle_sp == STACKLEVEL) 1042 if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
808 { 1043 {
809 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ 1044 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
810 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); 1045 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
811 1046
812 prev->cctx = 0; 1047 prev->cctx = 0;
813 1048
814 cctx_put (prev__cctx); 1049 cctx_put (prev__cctx);
815 prev__cctx->inuse = 0;
816 } 1050 }
817 1051
1052 ++next->usecount;
1053
818 if (!next->cctx) 1054 if (!next->cctx)
819 {
820 next->cctx = cctx_get (aTHX); 1055 next->cctx = cctx_get (aTHX);
821 assert (!next->cctx->inuse);
822 next->cctx->inuse = 1;
823 }
824 1056
825 if (prev__cctx != next->cctx) 1057 if (prev__cctx != next->cctx)
826 { 1058 {
827 prev__cctx->top_env = PL_top_env; 1059 prev__cctx->top_env = PL_top_env;
828 PL_top_env = next->cctx->top_env; 1060 PL_top_env = next->cctx->top_env;
… …
838{ 1070{
839 struct coro *prev, *next; 1071 struct coro *prev, *next;
840}; 1072};
841 1073
842#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) 1074#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
1075#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
843 1076
844/** high level stuff ********************************************************/ 1077/** high level stuff ********************************************************/
845 1078
846static int 1079static int
847coro_state_destroy (pTHX_ struct coro *coro) 1080coro_state_destroy (pTHX_ struct coro *coro)
… …
864 1097
865 if (coro->mainstack && coro->mainstack != main_mainstack) 1098 if (coro->mainstack && coro->mainstack != main_mainstack)
866 { 1099 {
867 struct coro temp; 1100 struct coro temp;
868 1101
869 assert (!(coro->flags & CF_RUNNING));
870
871 Zero (&temp, 1, struct coro);
872 temp.save = CORO_SAVE_DEF;
873
874 if (coro->flags & CF_RUNNING) 1102 if (coro->flags & CF_RUNNING)
875 croak ("FATAL: tried to destroy currently running coroutine"); 1103 croak ("FATAL: tried to destroy currently running coroutine");
876 1104
877 save_perl (aTHX_ &temp); 1105 save_perl (aTHX_ &temp);
878 load_perl (aTHX_ coro); 1106 load_perl (aTHX_ coro);
879 1107
880 coro_destroy_stacks (aTHX); 1108 coro_destroy (aTHX_ coro);
881 1109
882 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ 1110 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
883 1111
884 coro->mainstack = 0; 1112 coro->mainstack = 0;
885 } 1113 }
886 1114
887 cctx_destroy (coro->cctx); 1115 cctx_destroy (coro->cctx);
888 SvREFCNT_dec (coro->args); 1116 SvREFCNT_dec (coro->args);
889 1117
1118 if (coro->next) coro->next->prev = coro->prev;
1119 if (coro->prev) coro->prev->next = coro->next;
1120 if (coro == coro_first) coro_first = coro->next;
1121
890 return 1; 1122 return 1;
891} 1123}
892 1124
893static int 1125static int
894coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1126coro_state_free (pTHX_ SV *sv, MAGIC *mg)
895{ 1127{
896 struct coro *coro = (struct coro *)mg->mg_ptr; 1128 struct coro *coro = (struct coro *)mg->mg_ptr;
897 mg->mg_ptr = 0; 1129 mg->mg_ptr = 0;
1130
1131 coro->hv = 0;
898 1132
899 if (--coro->refcnt < 0) 1133 if (--coro->refcnt < 0)
900 { 1134 {
901 coro_state_destroy (aTHX_ coro); 1135 coro_state_destroy (aTHX_ coro);
902 Safefree (coro); 1136 Safefree (coro);
… …
924#else 1158#else
925# define MGf_DUP 0 1159# define MGf_DUP 0
926#endif 1160#endif
927}; 1161};
928 1162
929static struct coro *
930SvSTATE_ (pTHX_ SV *coro)
931{
932 HV *stash;
933 MAGIC *mg;
934
935 if (SvROK (coro))
936 coro = SvRV (coro);
937
938 stash = SvSTASH (coro);
939 if (stash != coro_stash && stash != coro_state_stash)
940 {
941 /* very slow, but rare, check */
942 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
943 croak ("Coro::State object required");
944 }
945
946 mg = CORO_MAGIC (coro);
947 return (struct coro *)mg->mg_ptr;
948}
949
950#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
951
952static void 1163static void
953prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) 1164prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv)
954{ 1165{
955 ta->prev = SvSTATE (prev_sv); 1166 ta->prev = SvSTATE (prev_sv);
956 ta->next = SvSTATE (next_sv); 1167 ta->next = SvSTATE (next_sv);
1168 TRANSFER_CHECK (*ta);
957} 1169}
958 1170
959static void 1171static void
960api_transfer (SV *prev_sv, SV *next_sv) 1172api_transfer (SV *prev_sv, SV *next_sv)
961{ 1173{
962 dTHX; 1174 dTHX;
963 struct transfer_args ta; 1175 struct transfer_args ta;
964 1176
965 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1177 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
966 TRANSFER (ta); 1178 TRANSFER (ta);
967}
968
969static int
970api_save (SV *coro_sv, int new_save)
971{
972 dTHX;
973 struct coro *coro = SvSTATE (coro_sv);
974 int old_save = coro->save;
975
976 if (new_save >= 0)
977 coro->save = new_save;
978
979 return old_save;
980} 1179}
981 1180
982/** Coro ********************************************************************/ 1181/** Coro ********************************************************************/
983 1182
984static void 1183static void
… …
1078 break; 1277 break;
1079 } 1278 }
1080 1279
1081 /* free this only after the transfer */ 1280 /* free this only after the transfer */
1082 prev_sv = SvRV (coro_current); 1281 prev_sv = SvRV (coro_current);
1083 SvRV_set (coro_current, next_sv);
1084 ta->prev = SvSTATE (prev_sv); 1282 ta->prev = SvSTATE (prev_sv);
1085 1283 TRANSFER_CHECK (*ta);
1086 assert (ta->next->flags & CF_READY); 1284 assert (ta->next->flags & CF_READY);
1087 ta->next->flags &= ~CF_READY; 1285 ta->next->flags &= ~CF_READY;
1286 SvRV_set (coro_current, next_sv);
1088 1287
1089 LOCK; 1288 LOCK;
1090 free_coro_mortal (aTHX); 1289 free_coro_mortal (aTHX);
1091 coro_mortal = prev_sv; 1290 coro_mortal = prev_sv;
1092 UNLOCK; 1291 UNLOCK;
… …
1153 } 1352 }
1154 else 1353 else
1155 return 0; 1354 return 0;
1156} 1355}
1157 1356
1357static void
1358api_trace (SV *coro_sv, int flags)
1359{
1360 dTHX;
1361 struct coro *coro = SvSTATE (coro_sv);
1362
1363 if (flags & CC_TRACE)
1364 {
1365 if (!coro->cctx)
1366 coro->cctx = cctx_new ();
1367 else if (!(coro->cctx->flags & CC_TRACE))
1368 croak ("cannot enable tracing on coroutine with custom stack");
1369
1370 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1371 }
1372 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1373 {
1374 coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
1375
1376 if (coro->flags & CF_RUNNING)
1377 PL_runops = RUNOPS_DEFAULT;
1378 else
1379 coro->runops = RUNOPS_DEFAULT;
1380 }
1381}
1382
1158MODULE = Coro::State PACKAGE = Coro::State 1383MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1159 1384
1160PROTOTYPES: DISABLE 1385PROTOTYPES: DISABLE
1161 1386
1162BOOT: 1387BOOT:
1163{ 1388{
1164#ifdef USE_ITHREADS 1389#ifdef USE_ITHREADS
1165 MUTEX_INIT (&coro_mutex); 1390 MUTEX_INIT (&coro_mutex);
1166#endif 1391#endif
1167 BOOT_PAGESIZE; 1392 BOOT_PAGESIZE;
1168 1393
1394 irsgv = gv_fetchpv ("/", 1, SVt_PV);
1395
1169 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 1396 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1170 1397
1171 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); 1398 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1172 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); 1399 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1173 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1174 newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1175 newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1176 newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF)); 1400 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1177 newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); 1401 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1178 1402
1179 main_mainstack = PL_mainstack; 1403 main_mainstack = PL_mainstack;
1404 main_top_env = PL_top_env;
1405
1406 while (main_top_env->je_prev)
1407 main_top_env = main_top_env->je_prev;
1180 1408
1181 coroapi.ver = CORO_API_VERSION; 1409 coroapi.ver = CORO_API_VERSION;
1182 coroapi.transfer = api_transfer; 1410 coroapi.transfer = api_transfer;
1183 1411
1184 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 1412 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
… …
1191 struct coro *coro; 1419 struct coro *coro;
1192 HV *hv; 1420 HV *hv;
1193 int i; 1421 int i;
1194 1422
1195 Newz (0, coro, 1, struct coro); 1423 Newz (0, coro, 1, struct coro);
1196 coro->args = newAV (); 1424 coro->args = newAV ();
1197 coro->save = CORO_SAVE_DEF;
1198 coro->flags = CF_NEW; 1425 coro->flags = CF_NEW;
1199 1426
1427 if (coro_first) coro_first->prev = coro;
1428 coro->next = coro_first;
1429 coro_first = coro;
1430
1200 hv = newHV (); 1431 coro->hv = hv = newHV ();
1201 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; 1432 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;
1202 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 1433 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1203 1434
1204 for (i = 1; i < items; i++) 1435 for (i = 1; i < items; i++)
1205 av_push (coro->args, newSVsv (ST (i))); 1436 av_push (coro->args, newSVsv (ST (i)));
1206} 1437}
1207 OUTPUT: 1438 OUTPUT:
1208 RETVAL 1439 RETVAL
1209 1440
1210int 1441# these not obviously related functions are all rolled into the same xs
1211save (SV *coro, int new_save = -1) 1442# function to increase chances that they all will call transfer with the same
1212 CODE: 1443# stack offset
1213 RETVAL = api_save (coro, new_save);
1214 OUTPUT:
1215 RETVAL
1216
1217int
1218save_also (SV *coro_sv, int save_also)
1219 CODE:
1220{
1221 struct coro *coro = SvSTATE (coro_sv);
1222 RETVAL = coro->save;
1223 coro->save |= save_also;
1224}
1225 OUTPUT:
1226 RETVAL
1227
1228void 1444void
1229_set_stacklevel (...) 1445_set_stacklevel (...)
1230 ALIAS: 1446 ALIAS:
1231 Coro::State::transfer = 1 1447 Coro::State::transfer = 1
1232 Coro::schedule = 2 1448 Coro::schedule = 2
… …
1307 CODE: 1523 CODE:
1308 RETVAL = cctx_idle; 1524 RETVAL = cctx_idle;
1309 OUTPUT: 1525 OUTPUT:
1310 RETVAL 1526 RETVAL
1311 1527
1528void
1529list ()
1530 PPCODE:
1531{
1532 struct coro *coro;
1533 for (coro = coro_first; coro; coro = coro->next)
1534 if (coro->hv)
1535 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
1536}
1537
1538void
1539call (Coro::State coro, SV *coderef)
1540 ALIAS:
1541 eval = 1
1542 CODE:
1543{
1544 if (coro->mainstack)
1545 {
1546 struct coro temp;
1547 Zero (&temp, 1, struct coro);
1548
1549 if (!(coro->flags & CF_RUNNING))
1550 {
1551 save_perl (aTHX_ &temp);
1552 load_perl (aTHX_ coro);
1553 }
1554
1555 {
1556 dSP;
1557 ENTER;
1558 SAVETMPS;
1559 PUSHMARK (SP);
1560 PUTBACK;
1561 if (ix)
1562 eval_sv (coderef, 0);
1563 else
1564 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1565 SPAGAIN;
1566 FREETMPS;
1567 LEAVE;
1568 PUTBACK;
1569 }
1570
1571 if (!(coro->flags & CF_RUNNING))
1572 {
1573 save_perl (aTHX_ coro);
1574 load_perl (aTHX_ &temp);
1575 }
1576 }
1577}
1578
1579SV *
1580is_ready (Coro::State coro)
1581 PROTOTYPE: $
1582 ALIAS:
1583 is_ready = CF_READY
1584 is_running = CF_RUNNING
1585 is_new = CF_NEW
1586 is_destroyed = CF_DESTROYED
1587 CODE:
1588 RETVAL = boolSV (coro->flags & ix);
1589 OUTPUT:
1590 RETVAL
1591
1592void
1593api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1594
1595SV *
1596has_stack (Coro::State coro)
1597 PROTOTYPE: $
1598 CODE:
1599 RETVAL = boolSV (!!coro->cctx);
1600 OUTPUT:
1601 RETVAL
1602
1603int
1604is_traced (Coro::State coro)
1605 PROTOTYPE: $
1606 CODE:
1607 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1608 OUTPUT:
1609 RETVAL
1610
1611IV
1612rss (Coro::State coro)
1613 PROTOTYPE: $
1614 ALIAS:
1615 usecount = 1
1616 CODE:
1617 switch (ix)
1618 {
1619 case 0: RETVAL = coro_rss (aTHX_ coro); break;
1620 case 1: RETVAL = coro->usecount; break;
1621 }
1622 OUTPUT:
1623 RETVAL
1624
1625
1312MODULE = Coro::State PACKAGE = Coro 1626MODULE = Coro::State PACKAGE = Coro
1313 1627
1314BOOT: 1628BOOT:
1315{ 1629{
1316 int i; 1630 int i;
1631
1632 sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
1633 sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
1634 av_async_pool = get_av ("Coro::async_pool", TRUE);
1635
1636 coro_current = get_sv ("Coro::current", FALSE);
1637 SvREADONLY_on (coro_current);
1317 1638
1318 coro_stash = gv_stashpv ("Coro", TRUE); 1639 coro_stash = gv_stashpv ("Coro", TRUE);
1319 1640
1320 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 1641 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1321 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 1642 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1322 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 1643 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1323 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 1644 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1324 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 1645 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1325 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 1646 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1326 1647
1327 coro_current = get_sv ("Coro::current", FALSE);
1328 SvREADONLY_on (coro_current);
1329
1330 for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) 1648 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1331 coro_ready[i] = newAV (); 1649 coro_ready[i] = newAV ();
1332 1650
1333 { 1651 {
1334 SV *sv = perl_get_sv("Coro::API", 1); 1652 SV *sv = perl_get_sv("Coro::API", 1);
1335 1653
1336 coroapi.schedule = api_schedule; 1654 coroapi.schedule = api_schedule;
1337 coroapi.save = api_save;
1338 coroapi.cede = api_cede; 1655 coroapi.cede = api_cede;
1339 coroapi.cede_notself = api_cede_notself; 1656 coroapi.cede_notself = api_cede_notself;
1340 coroapi.ready = api_ready; 1657 coroapi.ready = api_ready;
1341 coroapi.is_ready = api_is_ready; 1658 coroapi.is_ready = api_is_ready;
1342 coroapi.nready = &coro_nready; 1659 coroapi.nready = &coro_nready;
… …
1383 CODE: 1700 CODE:
1384 RETVAL = boolSV (api_ready (self)); 1701 RETVAL = boolSV (api_ready (self));
1385 OUTPUT: 1702 OUTPUT:
1386 RETVAL 1703 RETVAL
1387 1704
1388SV *
1389is_ready (SV *self)
1390 PROTOTYPE: $
1391 CODE:
1392 RETVAL = boolSV (api_is_ready (self));
1393 OUTPUT:
1394 RETVAL
1395
1396int 1705int
1397nready (...) 1706nready (...)
1398 PROTOTYPE: 1707 PROTOTYPE:
1399 CODE: 1708 CODE:
1400 RETVAL = coro_nready; 1709 RETVAL = coro_nready;
1401 OUTPUT: 1710 OUTPUT:
1402 RETVAL 1711 RETVAL
1403 1712
1713# for async_pool speedup
1714void
1715_pool_1 (SV *cb)
1716 CODE:
1717{
1718 struct coro *coro = SvSTATE (coro_current);
1719 HV *hv = (HV *)SvRV (coro_current);
1720 AV *defav = GvAV (PL_defgv);
1721 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1722 AV *invoke_av;
1723 int i, len;
1724
1725 coro->defoutgv = SvREFCNT_inc (PL_defoutgv);
1726
1727 if (!invoke)
1728 croak ("\3terminate\2\n");
1729
1730 hv_store (hv, "desc", sizeof ("desc") - 1,
1731 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1732
1733 invoke_av = (AV *)SvRV (invoke);
1734 len = av_len (invoke_av);
1735
1736 sv_setsv (cb, AvARRAY (invoke_av)[0]);
1737
1738 if (len > 0)
1739 {
1740 av_fill (defav, len - 1);
1741 for (i = 0; i < len; ++i)
1742 av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
1743 }
1744
1745
1746
1747 SvREFCNT_dec (invoke);
1748}
1749
1750void
1751_pool_2 (SV *cb)
1752 CODE:
1753{
1754 struct coro *coro = SvSTATE (coro_current);
1755
1756 sv_setsv (cb, &PL_sv_undef);
1757
1758 SvREFCNT_dec (PL_defoutgv); PL_defoutgv = coro->defoutgv;
1759
1760 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1761 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1762 croak ("\3terminate\2\n");
1763
1764 av_clear (GvAV (PL_defgv));
1765 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1766 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1767
1768 coro->prio = 0;
1769
1770 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1771 api_trace (coro_current, 0);
1772
1773 av_push (av_async_pool, newSVsv (coro_current));
1774}
1775
1776
1404MODULE = Coro::State PACKAGE = Coro::AIO 1777MODULE = Coro::State PACKAGE = Coro::AIO
1405 1778
1406SV * 1779SV *
1407_get_state () 1780_get_state ()
1408 CODE: 1781 CODE:

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