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Comparing Coro/Coro/State.xs (file contents):
Revision 1.146 by root, Sat Mar 17 19:51:57 2007 UTC vs.
Revision 1.185 by root, Thu Oct 4 19:35:08 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; /* $_ */
181 SV *errsv; /* $@ */ 196 SV *errsv; /* $@ */
197 SV *deffh; /* default filehandle */
182 SV *irssv; /* $/ */ 198 SV *irssv; /* $/ */
183 SV *irssv_sv; /* real $/ cache */ 199 SV *irssv_sv; /* real $/ cache */
184 200
185#define VAR(name,type) type name; 201#define VAR(name,type) type name;
186# include "state.h" 202# include "state.h"
187#undef VAR 203#undef VAR
188 204
205 /* statistics */
206 int usecount; /* number of transfers to this coro */
207
189 /* coro process data */ 208 /* coro process data */
190 int prio; 209 int prio;
210 //SV *throw;
211
212 /* async_pool */
213 SV *saved_deffh;
214
215 /* linked list */
216 struct coro *next, *prev;
217 HV *hv; /* the perl hash associated with this coro, if any */
191}; 218};
192 219
193typedef struct coro *Coro__State; 220typedef struct coro *Coro__State;
194typedef struct coro *Coro__State_or_hashref; 221typedef struct coro *Coro__State_or_hashref;
195 222
… …
204 231
205/* for Coro.pm */ 232/* for Coro.pm */
206static SV *coro_current; 233static SV *coro_current;
207static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; 234static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
208static int coro_nready; 235static int coro_nready;
236static struct coro *coro_first;
209 237
210/** lowlevel stuff **********************************************************/ 238/** lowlevel stuff **********************************************************/
211 239
212static AV * 240static AV *
213coro_clone_padlist (pTHX_ CV *cv) 241coro_clone_padlist (pTHX_ CV *cv)
… …
278 SvMAGIC (cv) \ 306 SvMAGIC (cv) \
279 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ 307 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
280 ? SvMAGIC (cv) \ 308 ? SvMAGIC (cv) \
281 : mg_find ((SV *)cv, PERL_MAGIC_coro) \ 309 : mg_find ((SV *)cv, PERL_MAGIC_coro) \
282 : 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))
283 337
284/* the next two functions merely cache the padlists */ 338/* the next two functions merely cache the padlists */
285static void 339static void
286get_padlist (pTHX_ CV *cv) 340get_padlist (pTHX_ CV *cv)
287{ 341{
… …
326 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 380 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
327} 381}
328 382
329/** load & save, init *******************************************************/ 383/** load & save, init *******************************************************/
330 384
331#define SB do {
332#define SE } while (0)
333
334#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
335
336static void 385static void
337load_perl (pTHX_ Coro__State c) 386load_perl (pTHX_ Coro__State c)
338{ 387{
339#define VAR(name,type) PL_ ## name = c->name; 388#define VAR(name,type) PL_ ## name = c->name;
340# include "state.h" 389# include "state.h"
341#undef VAR 390#undef VAR
342 391
343 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 392 GvSV (PL_defgv) = c->defsv;
344 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 393 GvAV (PL_defgv) = c->defav;
345 if (c->errsv) REPLACE_SV (ERRSV , c->errsv); 394 GvSV (PL_errgv) = c->errsv;
346 if (c->irssv) 395 GvSV (irsgv) = c->irssv_sv;
347 {
348 if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv))
349 SvREFCNT_dec (c->irssv);
350 else
351 {
352 REPLACE_SV (PL_rs, c->irssv);
353 if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
354 sv_setsv (c->irssv_sv, PL_rs);
355 }
356 }
357 396
358 { 397 {
359 dSP; 398 dSP;
360 CV *cv; 399 CV *cv;
361 400
… …
367 CvPADLIST (cv) = (AV *)POPs; 406 CvPADLIST (cv) = (AV *)POPs;
368 } 407 }
369 408
370 PUTBACK; 409 PUTBACK;
371 } 410 }
372 assert (!PL_comppad || AvARRAY (PL_comppad));//D
373} 411}
374 412
375static void 413static void
376save_perl (pTHX_ Coro__State c) 414save_perl (pTHX_ Coro__State c)
377{ 415{
378 assert (!PL_comppad || AvARRAY (PL_comppad));//D
379 { 416 {
380 dSP; 417 dSP;
381 I32 cxix = cxstack_ix; 418 I32 cxix = cxstack_ix;
382 PERL_CONTEXT *ccstk = cxstack; 419 PERL_CONTEXT *ccstk = cxstack;
383 PERL_SI *top_si = PL_curstackinfo; 420 PERL_SI *top_si = PL_curstackinfo;
… …
385 /* 422 /*
386 * the worst thing you can imagine happens first - we have to save 423 * the worst thing you can imagine happens first - we have to save
387 * (and reinitialize) all cv's in the whole callchain :( 424 * (and reinitialize) all cv's in the whole callchain :(
388 */ 425 */
389 426
390 EXTEND (SP, 3 + 1);
391 PUSHs (Nullsv); 427 XPUSHs (Nullsv);
392 /* this loop was inspired by pp_caller */ 428 /* this loop was inspired by pp_caller */
393 for (;;) 429 for (;;)
394 { 430 {
395 while (cxix >= 0) 431 while (cxix >= 0)
396 { 432 {
397 PERL_CONTEXT *cx = &ccstk[cxix--]; 433 PERL_CONTEXT *cx = &ccstk[cxix--];
398 434
399 if (CxTYPE (cx) == CXt_SUB) 435 if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)
400 { 436 {
401 CV *cv = cx->blk_sub.cv; 437 CV *cv = cx->blk_sub.cv;
402 438
403 if (CvDEPTH (cv)) 439 if (CvDEPTH (cv))
404 { 440 {
… …
415 451
416 if (top_si->si_type == PERLSI_MAIN) 452 if (top_si->si_type == PERLSI_MAIN)
417 break; 453 break;
418 454
419 top_si = top_si->si_prev; 455 top_si = top_si->si_prev;
420 ccstk = top_si->si_cxstack; 456 ccstk = top_si->si_cxstack;
421 cxix = top_si->si_cxix; 457 cxix = top_si->si_cxix;
422 } 458 }
423 459
424 PUTBACK; 460 PUTBACK;
425 } 461 }
426 462
427 c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; 463 c->defav = GvAV (PL_defgv);
428 c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; 464 c->defsv = DEFSV;
429 c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; 465 c->errsv = ERRSV;
430 c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; 466 c->irssv_sv = GvSV (irsgv);
431 467
432#define VAR(name,type)c->name = PL_ ## name; 468#define VAR(name,type)c->name = PL_ ## name;
433# include "state.h" 469# include "state.h"
434#undef VAR 470#undef VAR
435} 471}
… …
444# define coro_init_stacks init_stacks 480# define coro_init_stacks init_stacks
445#else 481#else
446static void 482static void
447coro_init_stacks (pTHX) 483coro_init_stacks (pTHX)
448{ 484{
449 PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT)); 485 PL_curstackinfo = new_stackinfo(64, 6);
450 PL_curstackinfo->si_type = PERLSI_MAIN; 486 PL_curstackinfo->si_type = PERLSI_MAIN;
451 PL_curstack = PL_curstackinfo->si_stack; 487 PL_curstack = PL_curstackinfo->si_stack;
452 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 488 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
453 489
454 PL_stack_base = AvARRAY(PL_curstack); 490 PL_stack_base = AvARRAY(PL_curstack);
455 PL_stack_sp = PL_stack_base; 491 PL_stack_sp = PL_stack_base;
456 PL_stack_max = PL_stack_base + AvMAX(PL_curstack); 492 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
457 493
458 New(50,PL_tmps_stack,128,SV*); 494 New(50,PL_tmps_stack,64,SV*);
459 PL_tmps_floor = -1; 495 PL_tmps_floor = -1;
460 PL_tmps_ix = -1; 496 PL_tmps_ix = -1;
461 PL_tmps_max = 128; 497 PL_tmps_max = 64;
462 498
463 New(54,PL_markstack,32,I32); 499 New(54,PL_markstack,16,I32);
464 PL_markstack_ptr = PL_markstack; 500 PL_markstack_ptr = PL_markstack;
465 PL_markstack_max = PL_markstack + 32; 501 PL_markstack_max = PL_markstack + 16;
466 502
467#ifdef SET_MARK_OFFSET 503#ifdef SET_MARK_OFFSET
468 SET_MARK_OFFSET; 504 SET_MARK_OFFSET;
469#endif 505#endif
470 506
471 New(54,PL_scopestack,32,I32); 507 New(54,PL_scopestack,16,I32);
472 PL_scopestack_ix = 0; 508 PL_scopestack_ix = 0;
473 PL_scopestack_max = 32; 509 PL_scopestack_max = 16;
474 510
475 New(54,PL_savestack,64,ANY); 511 New(54,PL_savestack,64,ANY);
476 PL_savestack_ix = 0; 512 PL_savestack_ix = 0;
477 PL_savestack_max = 64; 513 PL_savestack_max = 64;
478 514
479#if !PERL_VERSION_ATLEAST (5,9,0) 515#if !PERL_VERSION_ATLEAST (5,9,0)
480 New(54,PL_retstack,16,OP*); 516 New(54,PL_retstack,4,OP*);
481 PL_retstack_ix = 0; 517 PL_retstack_ix = 0;
482 PL_retstack_max = 16; 518 PL_retstack_max = 4;
483#endif 519#endif
484} 520}
485#endif 521#endif
486 522
487/* 523/*
488 * destroy the stacks, the callchain etc... 524 * destroy the stacks, the callchain etc...
489 */ 525 */
490static void 526static void
491coro_destroy_stacks (pTHX) 527coro_destroy_stacks (pTHX)
492{ 528{
493 if (!IN_DESTRUCT)
494 {
495 /* restore all saved variables and stuff */
496 LEAVE_SCOPE (0);
497 assert (PL_tmps_floor == -1);
498
499 /* free all temporaries */
500 FREETMPS;
501 assert (PL_tmps_ix == -1);
502
503 /* unwind all extra stacks */
504 POPSTACK_TO (PL_mainstack);
505
506 /* unwind main stack */
507 dounwind (-1);
508 }
509
510 while (PL_curstackinfo->si_next) 529 while (PL_curstackinfo->si_next)
511 PL_curstackinfo = PL_curstackinfo->si_next; 530 PL_curstackinfo = PL_curstackinfo->si_next;
512 531
513 while (PL_curstackinfo) 532 while (PL_curstackinfo)
514 { 533 {
… …
529#if !PERL_VERSION_ATLEAST (5,9,0) 548#if !PERL_VERSION_ATLEAST (5,9,0)
530 Safefree (PL_retstack); 549 Safefree (PL_retstack);
531#endif 550#endif
532} 551}
533 552
553static size_t
554coro_rss (pTHX_ struct coro *coro)
555{
556 size_t rss = sizeof (*coro);
557
558 if (coro->mainstack)
559 {
560 if (coro->flags & CF_RUNNING)
561 {
562 #define VAR(name,type)coro->name = PL_ ## name;
563 # include "state.h"
564 #undef VAR
565 }
566
567 rss += sizeof (coro->curstackinfo);
568 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
569 rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
570 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
571 rss += coro->tmps_max * sizeof (SV *);
572 rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
573 rss += coro->scopestack_max * sizeof (I32);
574 rss += coro->savestack_max * sizeof (ANY);
575
576#if !PERL_VERSION_ATLEAST (5,9,0)
577 rss += coro->retstack_max * sizeof (OP *);
578#endif
579 }
580
581 return rss;
582}
583
534/** coroutine stack handling ************************************************/ 584/** coroutine stack handling ************************************************/
535 585
536static void 586static void
537setup_coro (pTHX_ struct coro *coro) 587coro_setup (pTHX_ struct coro *coro)
538{ 588{
539 /* 589 /*
540 * emulate part of the perl startup here. 590 * emulate part of the perl startup here.
541 */ 591 */
542 coro_init_stacks (aTHX); 592 coro_init_stacks (aTHX);
543 593
594 PL_runops = RUNOPS_DEFAULT;
544 PL_curcop = &PL_compiling; 595 PL_curcop = &PL_compiling;
545 PL_in_eval = EVAL_NULL; 596 PL_in_eval = EVAL_NULL;
546 PL_comppad = 0; 597 PL_comppad = 0;
547 PL_curpm = 0; 598 PL_curpm = 0;
548 PL_localizing = 0; 599 PL_localizing = 0;
549 PL_dirty = 0; 600 PL_dirty = 0;
550 PL_restartop = 0; 601 PL_restartop = 0;
602
603 GvSV (PL_defgv) = NEWSV (0, 0);
604 GvAV (PL_defgv) = coro->args; coro->args = 0;
605 GvSV (PL_errgv) = NEWSV (0, 0);
606 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
607 PL_rs = newSVsv (GvSV (irsgv));
608
609 {
610 IO *io = newIO ();
611 PL_defoutgv = newGVgen ("Coro");
612 GvIOp(PL_defoutgv) = io;
613 IoTYPE (io) = IoTYPE_WRONLY;
614 IoOFP (io) = IoIFP (io) = PerlIO_stdout ();
615 IoFLAGS (io) |= IOf_FLUSH;
616 }
551 617
552 { 618 {
553 dSP; 619 dSP;
554 LOGOP myop; 620 LOGOP myop;
555 621
556 SvREFCNT_dec (GvAV (PL_defgv));
557 GvAV (PL_defgv) = coro->args; coro->args = 0;
558
559 Zero (&myop, 1, LOGOP); 622 Zero (&myop, 1, LOGOP);
560 myop.op_next = Nullop; 623 myop.op_next = Nullop;
561 myop.op_flags = OPf_WANT_VOID; 624 myop.op_flags = OPf_WANT_VOID;
562 625
563 PUSHMARK (SP); 626 PUSHMARK (SP);
564 XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); 627 XPUSHs (av_shift (GvAV (PL_defgv)));
565 PUTBACK; 628 PUTBACK;
566 PL_op = (OP *)&myop; 629 PL_op = (OP *)&myop;
567 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 630 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
568 SPAGAIN; 631 SPAGAIN;
569 } 632 }
570 633
571 ENTER; /* necessary e.g. for dounwind */ 634 ENTER; /* necessary e.g. for dounwind */
572} 635}
573 636
574static void 637static void
638coro_destroy (pTHX_ struct coro *coro)
639{
640 if (!IN_DESTRUCT)
641 {
642 /* restore all saved variables and stuff */
643 LEAVE_SCOPE (0);
644 assert (PL_tmps_floor == -1);
645
646 /* free all temporaries */
647 FREETMPS;
648 assert (PL_tmps_ix == -1);
649
650 /* unwind all extra stacks */
651 POPSTACK_TO (PL_mainstack);
652
653 /* unwind main stack */
654 dounwind (-1);
655 }
656
657 SvREFCNT_dec (GvSV (PL_defgv));
658 SvREFCNT_dec (GvAV (PL_defgv));
659 SvREFCNT_dec (GvSV (PL_errgv));
660 SvREFCNT_dec (PL_defoutgv);
661 SvREFCNT_dec (PL_rs);
662 SvREFCNT_dec (GvSV (irsgv));
663
664 SvREFCNT_dec (coro->saved_deffh);
665 //SvREFCNT_dec (coro->throw);
666
667 coro_destroy_stacks (aTHX);
668}
669
670static void
575free_coro_mortal (pTHX) 671free_coro_mortal (pTHX)
576{ 672{
577 if (coro_mortal) 673 if (coro_mortal)
578 { 674 {
579 SvREFCNT_dec (coro_mortal); 675 SvREFCNT_dec (coro_mortal);
580 coro_mortal = 0; 676 coro_mortal = 0;
581 } 677 }
582} 678}
583 679
680static int
681runops_trace (pTHX)
682{
683 COP *oldcop = 0;
684 int oldcxix = -2;
685 struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */
686 coro_cctx *cctx = coro->cctx;
687
688 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
689 {
690 PERL_ASYNC_CHECK ();
691
692 if (cctx->flags & CC_TRACE_ALL)
693 {
694 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
695 {
696 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
697 SV **bot, **top;
698 AV *av = newAV (); /* return values */
699 SV **cb;
700 dSP;
701
702 GV *gv = CvGV (cx->blk_sub.cv);
703 SV *fullname = sv_2mortal (newSV (0));
704 if (isGV (gv))
705 gv_efullname3 (fullname, gv, 0);
706
707 bot = PL_stack_base + cx->blk_oldsp + 1;
708 top = cx->blk_gimme == G_ARRAY ? SP + 1
709 : cx->blk_gimme == G_SCALAR ? bot + 1
710 : bot;
711
712 while (bot < top)
713 av_push (av, SvREFCNT_inc (*bot++));
714
715 PL_runops = RUNOPS_DEFAULT;
716 ENTER;
717 SAVETMPS;
718 EXTEND (SP, 3);
719 PUSHMARK (SP);
720 PUSHs (&PL_sv_no);
721 PUSHs (fullname);
722 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
723 PUTBACK;
724 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
725 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
726 SPAGAIN;
727 FREETMPS;
728 LEAVE;
729 PL_runops = runops_trace;
730 }
731
732 if (oldcop != PL_curcop)
733 {
734 oldcop = PL_curcop;
735
736 if (PL_curcop != &PL_compiling)
737 {
738 SV **cb;
739
740 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
741 {
742 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
743
744 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
745 {
746 runops_proc_t old_runops = PL_runops;
747 dSP;
748 GV *gv = CvGV (cx->blk_sub.cv);
749 SV *fullname = sv_2mortal (newSV (0));
750
751 if (isGV (gv))
752 gv_efullname3 (fullname, gv, 0);
753
754 PL_runops = RUNOPS_DEFAULT;
755 ENTER;
756 SAVETMPS;
757 EXTEND (SP, 3);
758 PUSHMARK (SP);
759 PUSHs (&PL_sv_yes);
760 PUSHs (fullname);
761 PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
762 PUTBACK;
763 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
764 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
765 SPAGAIN;
766 FREETMPS;
767 LEAVE;
768 PL_runops = runops_trace;
769 }
770
771 oldcxix = cxstack_ix;
772 }
773
774 if (cctx->flags & CC_TRACE_LINE)
775 {
776 dSP;
777
778 PL_runops = RUNOPS_DEFAULT;
779 ENTER;
780 SAVETMPS;
781 EXTEND (SP, 3);
782 PL_runops = RUNOPS_DEFAULT;
783 PUSHMARK (SP);
784 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
785 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
786 PUTBACK;
787 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
788 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
789 SPAGAIN;
790 FREETMPS;
791 LEAVE;
792 PL_runops = runops_trace;
793 }
794 }
795 }
796 }
797 }
798
799 TAINT_NOT;
800 return 0;
801}
802
584/* inject a fake call to Coro::State::_cctx_init into the execution */ 803/* inject a fake call to Coro::State::_cctx_init into the execution */
804/* _cctx_init should be careful, as it could be called at almost any time */
805/* during execution of a perl program */
585static void NOINLINE 806static void NOINLINE
586prepare_cctx (pTHX_ coro_cctx *cctx) 807prepare_cctx (pTHX_ coro_cctx *cctx)
587{ 808{
588 dSP; 809 dSP;
589 LOGOP myop; 810 LOGOP myop;
811
812 PL_top_env = &PL_start_env;
813
814 if (cctx->flags & CC_TRACE)
815 PL_runops = runops_trace;
590 816
591 Zero (&myop, 1, LOGOP); 817 Zero (&myop, 1, LOGOP);
592 myop.op_next = PL_op; 818 myop.op_next = PL_op;
593 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 819 myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
594 820
… …
600 PL_op = (OP *)&myop; 826 PL_op = (OP *)&myop;
601 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 827 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
602 SPAGAIN; 828 SPAGAIN;
603} 829}
604 830
831/*
832 * this is a _very_ stripped down perl interpreter ;)
833 */
605static void 834static void
606coro_run (void *arg) 835coro_run (void *arg)
607{ 836{
608 dTHX; 837 dTHX;
609 838
610 /* coro_run is the alternative tail of transfer(), so unlock here. */ 839 /* coro_run is the alternative tail of transfer(), so unlock here. */
611 UNLOCK; 840 UNLOCK;
612 841
613 /* 842 /* we now skip the entersub that lead to transfer() */
614 * this is a _very_ stripped down perl interpreter ;) 843 PL_op = PL_op->op_next;
615 */
616 PL_top_env = &PL_start_env;
617 844
618 /* inject call to cctx_init */ 845 /* inject a fake subroutine call to cctx_init */
619 prepare_cctx (aTHX_ (coro_cctx *)arg); 846 prepare_cctx (aTHX_ (coro_cctx *)arg);
620 847
621 /* somebody will hit me for both perl_run and PL_restartop */ 848 /* somebody or something will hit me for both perl_run and PL_restartop */
622 PL_restartop = PL_op; 849 PL_restartop = PL_op;
623 perl_run (PL_curinterp); 850 perl_run (PL_curinterp);
624 851
625 fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); 852 /*
626 abort (); 853 * If perl-run returns we assume exit() was being called or the coro
854 * fell off the end, which seems to be the only valid (non-bug)
855 * reason for perl_run to return. We try to exit by jumping to the
856 * bootstrap-time "top" top_env, as we cannot restore the "main"
857 * coroutine as Coro has no such concept
858 */
859 PL_top_env = main_top_env;
860 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
627} 861}
628 862
629static coro_cctx * 863static coro_cctx *
630cctx_new () 864cctx_new ()
631{ 865{
… …
648# if CORO_STACKGUARD 882# if CORO_STACKGUARD
649 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); 883 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
650# endif 884# endif
651 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; 885 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
652 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; 886 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
653 cctx->mapped = 1; 887 cctx->flags |= CC_MAPPED;
654 } 888 }
655 else 889 else
656#endif 890#endif
657 { 891 {
658 cctx->ssize = coro_stacksize * (long)sizeof (long); 892 cctx->ssize = coro_stacksize * (long)sizeof (long);
… …
685#if CORO_USE_VALGRIND 919#if CORO_USE_VALGRIND
686 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); 920 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
687#endif 921#endif
688 922
689#if HAVE_MMAP 923#if HAVE_MMAP
690 if (cctx->mapped) 924 if (cctx->flags & CC_MAPPED)
691 munmap (cctx->sptr, cctx->ssize); 925 munmap (cctx->sptr, cctx->ssize);
692 else 926 else
693#endif 927#endif
694 Safefree (cctx->sptr); 928 Safefree (cctx->sptr);
695 929
… …
703 { 937 {
704 coro_cctx *cctx = cctx_first; 938 coro_cctx *cctx = cctx_first;
705 cctx_first = cctx->next; 939 cctx_first = cctx->next;
706 --cctx_idle; 940 --cctx_idle;
707 941
708 if (cctx->ssize >= coro_stacksize) 942 if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
709 return cctx; 943 return cctx;
710 944
711 cctx_destroy (cctx); 945 cctx_destroy (cctx);
712 } 946 }
713 947
714 PL_op = PL_op->op_next;
715 return cctx_new (); 948 return cctx_new ();
716} 949}
717 950
718static void 951static void
719cctx_put (coro_cctx *cctx) 952cctx_put (coro_cctx *cctx)
… …
723 { 956 {
724 coro_cctx *first = cctx_first; 957 coro_cctx *first = cctx_first;
725 cctx_first = first->next; 958 cctx_first = first->next;
726 --cctx_idle; 959 --cctx_idle;
727 960
728 assert (!first->inuse);
729 cctx_destroy (first); 961 cctx_destroy (first);
730 } 962 }
731 963
732 ++cctx_idle; 964 ++cctx_idle;
733 cctx->next = cctx_first; 965 cctx->next = cctx_first;
734 cctx_first = cctx; 966 cctx_first = cctx;
735} 967}
736 968
737/** coroutine switching *****************************************************/ 969/** coroutine switching *****************************************************/
738 970
739/* never call directly, always through the coro_state_transfer global variable */ 971static void NOINLINE
972transfer_check (pTHX_ struct coro *prev, struct coro *next)
973{
974 if (prev != next)
975 {
976 if (!(prev->flags & (CF_RUNNING | CF_NEW)))
977 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
978
979 if (next->flags & CF_RUNNING)
980 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
981
982 if (next->flags & CF_DESTROYED)
983 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
984
985 if (PL_lex_state != LEX_NOTPARSING)
986 croak ("Coro::State::transfer called while parsing, but this is not supported");
987 }
988}
989
990/* always use the TRANSFER macro */
740static void NOINLINE 991static void NOINLINE
741transfer (pTHX_ struct coro *prev, struct coro *next) 992transfer (pTHX_ struct coro *prev, struct coro *next)
742{ 993{
743 dSTACKLEVEL; 994 dSTACKLEVEL;
744 995
… …
754 1005
755 if (prev->flags & CF_NEW) 1006 if (prev->flags & CF_NEW)
756 { 1007 {
757 /* create a new empty context */ 1008 /* create a new empty context */
758 Newz (0, prev->cctx, 1, coro_cctx); 1009 Newz (0, prev->cctx, 1, coro_cctx);
759 prev->cctx->inuse = 1;
760 prev->flags &= ~CF_NEW; 1010 prev->flags &= ~CF_NEW;
761 prev->flags |= CF_RUNNING; 1011 prev->flags |= CF_RUNNING;
762 } 1012 }
763
764 /*TODO: must not croak here */
765 if (!prev->flags & CF_RUNNING)
766 croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
767
768 if (next->flags & CF_RUNNING)
769 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
770
771 if (next->flags & CF_DESTROYED)
772 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
773 1013
774 prev->flags &= ~CF_RUNNING; 1014 prev->flags &= ~CF_RUNNING;
775 next->flags |= CF_RUNNING; 1015 next->flags |= CF_RUNNING;
776 1016
777 LOCK; 1017 LOCK;
… …
781 /* need to start coroutine */ 1021 /* need to start coroutine */
782 next->flags &= ~CF_NEW; 1022 next->flags &= ~CF_NEW;
783 /* first get rid of the old state */ 1023 /* first get rid of the old state */
784 save_perl (aTHX_ prev); 1024 save_perl (aTHX_ prev);
785 /* setup coroutine call */ 1025 /* setup coroutine call */
786 setup_coro (aTHX_ next); 1026 coro_setup (aTHX_ next);
787 /* need a new stack */
788 assert (!next->cctx);
789 } 1027 }
790 else 1028 else
791 { 1029 {
792 /* coroutine already started */ 1030 /* coroutine already started */
793 save_perl (aTHX_ prev); 1031 save_perl (aTHX_ prev);
… …
795 } 1033 }
796 1034
797 prev__cctx = prev->cctx; 1035 prev__cctx = prev->cctx;
798 1036
799 /* possibly "free" the cctx */ 1037 /* possibly "free" the cctx */
800 if (prev__cctx->idle_sp == STACKLEVEL) 1038 if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
801 { 1039 {
802 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ 1040 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
803 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); 1041 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
804 1042
805 prev->cctx = 0; 1043 prev->cctx = 0;
806 1044
807 cctx_put (prev__cctx); 1045 cctx_put (prev__cctx);
808 prev__cctx->inuse = 0;
809 } 1046 }
810 1047
1048 ++next->usecount;
1049
811 if (!next->cctx) 1050 if (!next->cctx)
812 {
813 next->cctx = cctx_get (aTHX); 1051 next->cctx = cctx_get (aTHX);
814 assert (!next->cctx->inuse);
815 next->cctx->inuse = 1;
816 }
817 1052
818 if (prev__cctx != next->cctx) 1053 if (prev__cctx != next->cctx)
819 { 1054 {
820 prev__cctx->top_env = PL_top_env; 1055 prev__cctx->top_env = PL_top_env;
821 PL_top_env = next->cctx->top_env; 1056 PL_top_env = next->cctx->top_env;
… …
831{ 1066{
832 struct coro *prev, *next; 1067 struct coro *prev, *next;
833}; 1068};
834 1069
835#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) 1070#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
1071#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
836 1072
837/** high level stuff ********************************************************/ 1073/** high level stuff ********************************************************/
838 1074
839static int 1075static int
840coro_state_destroy (pTHX_ struct coro *coro) 1076coro_state_destroy (pTHX_ struct coro *coro)
… …
857 1093
858 if (coro->mainstack && coro->mainstack != main_mainstack) 1094 if (coro->mainstack && coro->mainstack != main_mainstack)
859 { 1095 {
860 struct coro temp; 1096 struct coro temp;
861 1097
862 assert (!(coro->flags & CF_RUNNING));
863
864 Zero (&temp, 1, struct coro);
865 temp.save = CORO_SAVE_ALL;
866
867 if (coro->flags & CF_RUNNING) 1098 if (coro->flags & CF_RUNNING)
868 croak ("FATAL: tried to destroy currently running coroutine"); 1099 croak ("FATAL: tried to destroy currently running coroutine");
869 1100
870 save_perl (aTHX_ &temp); 1101 save_perl (aTHX_ &temp);
871 load_perl (aTHX_ coro); 1102 load_perl (aTHX_ coro);
872 1103
873 coro_destroy_stacks (aTHX); 1104 coro_destroy (aTHX_ coro);
874 1105
875 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ 1106 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
876 1107
877 coro->mainstack = 0; 1108 coro->mainstack = 0;
878 } 1109 }
879 1110
880 cctx_destroy (coro->cctx); 1111 cctx_destroy (coro->cctx);
881 SvREFCNT_dec (coro->args); 1112 SvREFCNT_dec (coro->args);
882 1113
1114 if (coro->next) coro->next->prev = coro->prev;
1115 if (coro->prev) coro->prev->next = coro->next;
1116 if (coro == coro_first) coro_first = coro->next;
1117
883 return 1; 1118 return 1;
884} 1119}
885 1120
886static int 1121static int
887coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1122coro_state_free (pTHX_ SV *sv, MAGIC *mg)
888{ 1123{
889 struct coro *coro = (struct coro *)mg->mg_ptr; 1124 struct coro *coro = (struct coro *)mg->mg_ptr;
890 mg->mg_ptr = 0; 1125 mg->mg_ptr = 0;
1126
1127 coro->hv = 0;
891 1128
892 if (--coro->refcnt < 0) 1129 if (--coro->refcnt < 0)
893 { 1130 {
894 coro_state_destroy (aTHX_ coro); 1131 coro_state_destroy (aTHX_ coro);
895 Safefree (coro); 1132 Safefree (coro);
… …
917#else 1154#else
918# define MGf_DUP 0 1155# define MGf_DUP 0
919#endif 1156#endif
920}; 1157};
921 1158
922static struct coro *
923SvSTATE_ (pTHX_ SV *coro)
924{
925 HV *stash;
926 MAGIC *mg;
927
928 if (SvROK (coro))
929 coro = SvRV (coro);
930
931 stash = SvSTASH (coro);
932 if (stash != coro_stash && stash != coro_state_stash)
933 {
934 /* very slow, but rare, check */
935 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
936 croak ("Coro::State object required");
937 }
938
939 mg = CORO_MAGIC (coro);
940 return (struct coro *)mg->mg_ptr;
941}
942
943#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
944
945static void 1159static void
946prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) 1160prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv)
947{ 1161{
948 ta->prev = SvSTATE (prev_sv); 1162 ta->prev = SvSTATE (prev_sv);
949 ta->next = SvSTATE (next_sv); 1163 ta->next = SvSTATE (next_sv);
1164 TRANSFER_CHECK (*ta);
950} 1165}
951 1166
952static void 1167static void
953api_transfer (SV *prev_sv, SV *next_sv) 1168api_transfer (SV *prev_sv, SV *next_sv)
954{ 1169{
955 dTHX; 1170 dTHX;
956 struct transfer_args ta; 1171 struct transfer_args ta;
957 1172
958 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1173 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
959 TRANSFER (ta); 1174 TRANSFER (ta);
960}
961
962static int
963api_save (SV *coro_sv, int new_save)
964{
965 dTHX;
966 struct coro *coro = SvSTATE (coro_sv);
967 int old_save = coro->save;
968
969 if (new_save >= 0)
970 coro->save = new_save;
971
972 return old_save;
973} 1175}
974 1176
975/** Coro ********************************************************************/ 1177/** Coro ********************************************************************/
976 1178
977static void 1179static void
… …
1071 break; 1273 break;
1072 } 1274 }
1073 1275
1074 /* free this only after the transfer */ 1276 /* free this only after the transfer */
1075 prev_sv = SvRV (coro_current); 1277 prev_sv = SvRV (coro_current);
1076 SvRV_set (coro_current, next_sv);
1077 ta->prev = SvSTATE (prev_sv); 1278 ta->prev = SvSTATE (prev_sv);
1078 1279 TRANSFER_CHECK (*ta);
1079 assert (ta->next->flags & CF_READY); 1280 assert (ta->next->flags & CF_READY);
1080 ta->next->flags &= ~CF_READY; 1281 ta->next->flags &= ~CF_READY;
1282 SvRV_set (coro_current, next_sv);
1081 1283
1082 LOCK; 1284 LOCK;
1083 free_coro_mortal (aTHX); 1285 free_coro_mortal (aTHX);
1084 coro_mortal = prev_sv; 1286 coro_mortal = prev_sv;
1085 UNLOCK; 1287 UNLOCK;
… …
1146 } 1348 }
1147 else 1349 else
1148 return 0; 1350 return 0;
1149} 1351}
1150 1352
1353static void
1354api_trace (SV *coro_sv, int flags)
1355{
1356 dTHX;
1357 struct coro *coro = SvSTATE (coro_sv);
1358
1359 if (flags & CC_TRACE)
1360 {
1361 if (!coro->cctx)
1362 coro->cctx = cctx_new ();
1363 else if (!(coro->cctx->flags & CC_TRACE))
1364 croak ("cannot enable tracing on coroutine with custom stack");
1365
1366 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1367 }
1368 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1369 {
1370 coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
1371
1372 if (coro->flags & CF_RUNNING)
1373 PL_runops = RUNOPS_DEFAULT;
1374 else
1375 coro->runops = RUNOPS_DEFAULT;
1376 }
1377}
1378
1151MODULE = Coro::State PACKAGE = Coro::State 1379MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1152 1380
1153PROTOTYPES: DISABLE 1381PROTOTYPES: DISABLE
1154 1382
1155BOOT: 1383BOOT:
1156{ 1384{
1157#ifdef USE_ITHREADS 1385#ifdef USE_ITHREADS
1158 MUTEX_INIT (&coro_mutex); 1386 MUTEX_INIT (&coro_mutex);
1159#endif 1387#endif
1160 BOOT_PAGESIZE; 1388 BOOT_PAGESIZE;
1161 1389
1390 irsgv = gv_fetchpv ("/", 1, SVt_PV);
1391
1162 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 1392 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1163 1393
1394 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1395 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1164 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); 1396 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1165 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1166 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1167 newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1168 newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); 1397 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1169 1398
1170 main_mainstack = PL_mainstack; 1399 main_mainstack = PL_mainstack;
1400 main_top_env = PL_top_env;
1401
1402 while (main_top_env->je_prev)
1403 main_top_env = main_top_env->je_prev;
1171 1404
1172 coroapi.ver = CORO_API_VERSION; 1405 coroapi.ver = CORO_API_VERSION;
1173 coroapi.transfer = api_transfer; 1406 coroapi.transfer = api_transfer;
1174 1407
1175 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 1408 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
… …
1182 struct coro *coro; 1415 struct coro *coro;
1183 HV *hv; 1416 HV *hv;
1184 int i; 1417 int i;
1185 1418
1186 Newz (0, coro, 1, struct coro); 1419 Newz (0, coro, 1, struct coro);
1187 coro->args = newAV (); 1420 coro->args = newAV ();
1188 coro->save = CORO_SAVE_ALL;
1189 coro->flags = CF_NEW; 1421 coro->flags = CF_NEW;
1190 1422
1423 if (coro_first) coro_first->prev = coro;
1424 coro->next = coro_first;
1425 coro_first = coro;
1426
1191 hv = newHV (); 1427 coro->hv = hv = newHV ();
1192 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; 1428 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)); 1429 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1194 1430
1195 for (i = 1; i < items; i++) 1431 for (i = 1; i < items; i++)
1196 av_push (coro->args, newSVsv (ST (i))); 1432 av_push (coro->args, newSVsv (ST (i)));
1197} 1433}
1198 OUTPUT: 1434 OUTPUT:
1199 RETVAL 1435 RETVAL
1200 1436
1201int 1437# these not obviously related functions are all rolled into the same xs
1202save (SV *coro, int new_save = -1) 1438# function to increase chances that they all will call transfer with the same
1203 CODE: 1439# stack offset
1204 RETVAL = api_save (coro, new_save);
1205 OUTPUT:
1206 RETVAL
1207
1208void 1440void
1209_set_stacklevel (...) 1441_set_stacklevel (...)
1210 ALIAS: 1442 ALIAS:
1211 Coro::State::transfer = 1 1443 Coro::State::transfer = 1
1212 Coro::schedule = 2 1444 Coro::schedule = 2
… …
1287 CODE: 1519 CODE:
1288 RETVAL = cctx_idle; 1520 RETVAL = cctx_idle;
1289 OUTPUT: 1521 OUTPUT:
1290 RETVAL 1522 RETVAL
1291 1523
1524void
1525list ()
1526 PPCODE:
1527{
1528 struct coro *coro;
1529 for (coro = coro_first; coro; coro = coro->next)
1530 if (coro->hv)
1531 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
1532}
1533
1534void
1535call (Coro::State coro, SV *coderef)
1536 ALIAS:
1537 eval = 1
1538 CODE:
1539{
1540 if (coro->mainstack)
1541 {
1542 struct coro temp;
1543 Zero (&temp, 1, struct coro);
1544
1545 if (!(coro->flags & CF_RUNNING))
1546 {
1547 save_perl (aTHX_ &temp);
1548 load_perl (aTHX_ coro);
1549 }
1550
1551 {
1552 dSP;
1553 ENTER;
1554 SAVETMPS;
1555 PUSHMARK (SP);
1556 PUTBACK;
1557 if (ix)
1558 eval_sv (coderef, 0);
1559 else
1560 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1561 SPAGAIN;
1562 FREETMPS;
1563 LEAVE;
1564 PUTBACK;
1565 }
1566
1567 if (!(coro->flags & CF_RUNNING))
1568 {
1569 save_perl (aTHX_ coro);
1570 load_perl (aTHX_ &temp);
1571 }
1572 }
1573}
1574
1575SV *
1576is_ready (Coro::State coro)
1577 PROTOTYPE: $
1578 ALIAS:
1579 is_ready = CF_READY
1580 is_running = CF_RUNNING
1581 is_new = CF_NEW
1582 is_destroyed = CF_DESTROYED
1583 CODE:
1584 RETVAL = boolSV (coro->flags & ix);
1585 OUTPUT:
1586 RETVAL
1587
1588void
1589api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1590
1591SV *
1592has_stack (Coro::State coro)
1593 PROTOTYPE: $
1594 CODE:
1595 RETVAL = boolSV (!!coro->cctx);
1596 OUTPUT:
1597 RETVAL
1598
1599int
1600is_traced (Coro::State coro)
1601 PROTOTYPE: $
1602 CODE:
1603 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1604 OUTPUT:
1605 RETVAL
1606
1607IV
1608rss (Coro::State coro)
1609 PROTOTYPE: $
1610 ALIAS:
1611 usecount = 1
1612 CODE:
1613 switch (ix)
1614 {
1615 case 0: RETVAL = coro_rss (aTHX_ coro); break;
1616 case 1: RETVAL = coro->usecount; break;
1617 }
1618 OUTPUT:
1619 RETVAL
1620
1621
1292MODULE = Coro::State PACKAGE = Coro 1622MODULE = Coro::State PACKAGE = Coro
1293 1623
1294BOOT: 1624BOOT:
1295{ 1625{
1296 int i; 1626 int i;
1627
1628 sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
1629 sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
1630 av_async_pool = get_av ("Coro::async_pool", TRUE);
1631
1632 coro_current = get_sv ("Coro::current", FALSE);
1633 SvREADONLY_on (coro_current);
1297 1634
1298 coro_stash = gv_stashpv ("Coro", TRUE); 1635 coro_stash = gv_stashpv ("Coro", TRUE);
1299 1636
1300 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 1637 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1301 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 1638 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1302 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 1639 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1303 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 1640 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1304 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 1641 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1305 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 1642 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1306 1643
1307 coro_current = get_sv ("Coro::current", FALSE);
1308 SvREADONLY_on (coro_current);
1309
1310 for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) 1644 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1311 coro_ready[i] = newAV (); 1645 coro_ready[i] = newAV ();
1312 1646
1313 { 1647 {
1314 SV *sv = perl_get_sv("Coro::API", 1); 1648 SV *sv = perl_get_sv("Coro::API", 1);
1315 1649
1316 coroapi.schedule = api_schedule; 1650 coroapi.schedule = api_schedule;
1317 coroapi.save = api_save;
1318 coroapi.cede = api_cede; 1651 coroapi.cede = api_cede;
1319 coroapi.cede_notself = api_cede_notself; 1652 coroapi.cede_notself = api_cede_notself;
1320 coroapi.ready = api_ready; 1653 coroapi.ready = api_ready;
1321 coroapi.is_ready = api_is_ready; 1654 coroapi.is_ready = api_is_ready;
1322 coroapi.nready = &coro_nready; 1655 coroapi.nready = &coro_nready;
… …
1363 CODE: 1696 CODE:
1364 RETVAL = boolSV (api_ready (self)); 1697 RETVAL = boolSV (api_ready (self));
1365 OUTPUT: 1698 OUTPUT:
1366 RETVAL 1699 RETVAL
1367 1700
1368SV *
1369is_ready (SV *self)
1370 PROTOTYPE: $
1371 CODE:
1372 RETVAL = boolSV (api_is_ready (self));
1373 OUTPUT:
1374 RETVAL
1375
1376int 1701int
1377nready (...) 1702nready (...)
1378 PROTOTYPE: 1703 PROTOTYPE:
1379 CODE: 1704 CODE:
1380 RETVAL = coro_nready; 1705 RETVAL = coro_nready;
1381 OUTPUT: 1706 OUTPUT:
1382 RETVAL 1707 RETVAL
1383 1708
1709# for async_pool speedup
1710void
1711_pool_1 (SV *cb)
1712 CODE:
1713{
1714 struct coro *coro = SvSTATE (coro_current);
1715 HV *hv = (HV *)SvRV (coro_current);
1716 AV *defav = GvAV (PL_defgv);
1717 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1718 AV *invoke_av;
1719 int i, len;
1720
1721 if (!invoke)
1722 croak ("\3terminate\2\n");
1723
1724 SvREFCNT_dec (coro->saved_deffh);
1725 coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1726
1727 hv_store (hv, "desc", sizeof ("desc") - 1,
1728 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1729
1730 invoke_av = (AV *)SvRV (invoke);
1731 len = av_len (invoke_av);
1732
1733 sv_setsv (cb, AvARRAY (invoke_av)[0]);
1734
1735 if (len > 0)
1736 {
1737 av_fill (defav, len - 1);
1738 for (i = 0; i < len; ++i)
1739 av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
1740 }
1741
1742 SvREFCNT_dec (invoke);
1743}
1744
1745void
1746_pool_2 (SV *cb)
1747 CODE:
1748{
1749 struct coro *coro = SvSTATE (coro_current);
1750
1751 sv_setsv (cb, &PL_sv_undef);
1752
1753 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1754 coro->saved_deffh = 0;
1755
1756 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1757 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1758 croak ("\3terminate\2\n");
1759
1760 av_clear (GvAV (PL_defgv));
1761 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1762 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1763
1764 coro->prio = 0;
1765
1766 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1767 api_trace (coro_current, 0);
1768
1769 av_push (av_async_pool, newSVsv (coro_current));
1770}
1771
1772
1384MODULE = Coro::State PACKAGE = Coro::AIO 1773MODULE = Coro::State PACKAGE = Coro::AIO
1385 1774
1386SV * 1775SV *
1387_get_state () 1776_get_state ()
1388 CODE: 1777 CODE:

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