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Comparing Coro/Coro/State.xs (file contents):
Revision 1.160 by root, Sat Sep 22 22:39:15 2007 UTC vs.
Revision 1.197 by root, Sat Oct 6 19:25:00 2007 UTC

… …
75/* 5.8.7 */ 75/* 5.8.7 */
76#ifndef SvRV_set 76#ifndef SvRV_set
77# define SvRV_set(s,v) SvRV(s) = (v) 77# define SvRV_set(s,v) SvRV(s) = (v)
78#endif 78#endif
79 79
80/* 5.8.8 */
81#ifndef GV_NOTQUAL
82# define GV_NOTQUAL 0
83#endif
84#ifndef newSV
85# define newSV(l) NEWSV(0,l)
86#endif
87
80#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 88#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
81# undef CORO_STACKGUARD 89# undef CORO_STACKGUARD
82#endif 90#endif
83 91
84#ifndef CORO_STACKGUARD 92#ifndef CORO_STACKGUARD
… …
98#define IN_DESTRUCT (PL_main_cv == Nullcv) 106#define IN_DESTRUCT (PL_main_cv == Nullcv)
99 107
100#if __GNUC__ >= 3 108#if __GNUC__ >= 3
101# define attribute(x) __attribute__(x) 109# define attribute(x) __attribute__(x)
102# define BARRIER __asm__ __volatile__ ("" : : : "memory") 110# define BARRIER __asm__ __volatile__ ("" : : : "memory")
111# define expect(expr,value) __builtin_expect ((expr),(value))
103#else 112#else
104# define attribute(x) 113# define attribute(x)
105# define BARRIER 114# define BARRIER
115# define expect(expr,value) (expr)
106#endif 116#endif
117
118#define expect_false(expr) expect ((expr) != 0, 0)
119#define expect_true(expr) expect ((expr) != 0, 1)
107 120
108#define NOINLINE attribute ((noinline)) 121#define NOINLINE attribute ((noinline))
109 122
110#include "CoroAPI.h" 123#include "CoroAPI.h"
111 124
… …
132static AV *main_mainstack; /* used to differentiate between $main and others */ 145static AV *main_mainstack; /* used to differentiate between $main and others */
133static JMPENV *main_top_env; 146static JMPENV *main_top_env;
134static HV *coro_state_stash, *coro_stash; 147static HV *coro_state_stash, *coro_stash;
135static SV *coro_mortal; /* will be freed after next transfer */ 148static SV *coro_mortal; /* will be freed after next transfer */
136 149
150static GV *irsgv; /* $/ */
151static GV *stdoutgv; /* *STDOUT */
152
137/* async_pool helper stuff */ 153/* async_pool helper stuff */
138static SV *sv_pool_rss; 154static SV *sv_pool_rss;
139static SV *sv_pool_size; 155static SV *sv_pool_size;
140static AV *av_async_pool; 156static AV *av_async_pool;
141 157
142static struct coro_cctx *cctx_first; 158static struct coro_cctx *cctx_first;
143static int cctx_count, cctx_idle; 159static int cctx_count, cctx_idle;
160
161enum {
162 CC_MAPPED = 0x01,
163 CC_NOREUSE = 0x02, /* throw this away after tracing */
164 CC_TRACE = 0x04,
165 CC_TRACE_SUB = 0x08, /* trace sub calls */
166 CC_TRACE_LINE = 0x10, /* trace each statement */
167 CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE,
168};
144 169
145/* this is a structure representing a c-level coroutine */ 170/* this is a structure representing a c-level coroutine */
146typedef struct coro_cctx { 171typedef struct coro_cctx {
147 struct coro_cctx *next; 172 struct coro_cctx *next;
148 173
… …
157 coro_context cctx; 182 coro_context cctx;
158 183
159#if CORO_USE_VALGRIND 184#if CORO_USE_VALGRIND
160 int valgrind_id; 185 int valgrind_id;
161#endif 186#endif
162 char inuse, mapped; 187 unsigned char flags;
163} coro_cctx; 188} coro_cctx;
164 189
165enum { 190enum {
166 CF_RUNNING = 0x0001, /* coroutine is running */ 191 CF_RUNNING = 0x0001, /* coroutine is running */
167 CF_READY = 0x0002, /* coroutine is ready */ 192 CF_READY = 0x0002, /* coroutine is ready */
… …
175 coro_cctx *cctx; 200 coro_cctx *cctx;
176 201
177 /* data associated with this coroutine (initial args) */ 202 /* data associated with this coroutine (initial args) */
178 AV *args; 203 AV *args;
179 int refcnt; 204 int refcnt;
180 int save; /* CORO_SAVE flags */
181 int flags; /* CF_ flags */ 205 int flags; /* CF_ flags */
182 206
183 /* optionally saved, might be zero */ 207 /* optionally saved, might be zero */
184 AV *defav; /* @_ */ 208 AV *defav; /* @_ */
185 SV *defsv; /* $_ */ 209 SV *defsv; /* $_ */
186 SV *errsv; /* $@ */ 210 SV *errsv; /* $@ */
187 GV *deffh; /* default filehandle */ 211 SV *deffh; /* default filehandle */
188 SV *irssv; /* $/ */ 212 SV *irssv; /* $/ */
189 SV *irssv_sv; /* real $/ cache */ 213 SV *irssv_sv; /* real $/ cache */
190 214
191#define VAR(name,type) type name; 215#define VAR(name,type) type name;
192# include "state.h" 216# include "state.h"
193#undef VAR 217#undef VAR
194 218
219 /* statistics */
220 int usecount; /* number of transfers to this coro */
221
195 /* coro process data */ 222 /* coro process data */
196 int prio; 223 int prio;
224 SV *throw;
225
226 /* async_pool */
227 SV *saved_deffh;
197 228
198 /* linked list */ 229 /* linked list */
199 struct coro *next, *prev; 230 struct coro *next, *prev;
200 HV *hv; /* the perl hash associated with this coro, if any */ 231 HV *hv; /* the perl hash associated with this coro, if any */
201}; 232};
… …
290 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ 321 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
291 ? SvMAGIC (cv) \ 322 ? SvMAGIC (cv) \
292 : mg_find ((SV *)cv, PERL_MAGIC_coro) \ 323 : mg_find ((SV *)cv, PERL_MAGIC_coro) \
293 : 0 324 : 0
294 325
326static struct coro *
327SvSTATE_ (pTHX_ SV *coro)
328{
329 HV *stash;
330 MAGIC *mg;
331
332 if (SvROK (coro))
333 coro = SvRV (coro);
334
335 if (expect_false (SvTYPE (coro) != SVt_PVHV))
336 croak ("Coro::State object required");
337
338 stash = SvSTASH (coro);
339 if (expect_false (stash != coro_stash && stash != coro_state_stash))
340 {
341 /* very slow, but rare, check */
342 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
343 croak ("Coro::State object required");
344 }
345
346 mg = CORO_MAGIC (coro);
347 return (struct coro *)mg->mg_ptr;
348}
349
350#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
351
295/* the next two functions merely cache the padlists */ 352/* the next two functions merely cache the padlists */
296static void 353static void
297get_padlist (pTHX_ CV *cv) 354get_padlist (pTHX_ CV *cv)
298{ 355{
299 MAGIC *mg = CORO_MAGIC (cv); 356 MAGIC *mg = CORO_MAGIC (cv);
300 AV *av; 357 AV *av;
301 358
302 if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) 359 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
303 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 360 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
304 else 361 else
305 { 362 {
306#if CORO_PREFER_PERL_FUNCTIONS 363#if CORO_PREFER_PERL_FUNCTIONS
307 /* this is probably cleaner, but also slower? */ 364 /* this is probably cleaner, but also slower? */
… …
319put_padlist (pTHX_ CV *cv) 376put_padlist (pTHX_ CV *cv)
320{ 377{
321 MAGIC *mg = CORO_MAGIC (cv); 378 MAGIC *mg = CORO_MAGIC (cv);
322 AV *av; 379 AV *av;
323 380
324 if (!mg) 381 if (expect_false (!mg))
325 { 382 {
326 sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); 383 sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
327 mg = mg_find ((SV *)cv, PERL_MAGIC_coro); 384 mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
328 mg->mg_virtual = &vtbl_coro; 385 mg->mg_virtual = &vtbl_coro;
329 mg->mg_obj = (SV *)newAV (); 386 mg->mg_obj = (SV *)newAV ();
330 } 387 }
331 388
332 av = (AV *)mg->mg_obj; 389 av = (AV *)mg->mg_obj;
333 390
334 if (AvFILLp (av) >= AvMAX (av)) 391 if (expect_false (AvFILLp (av) >= AvMAX (av)))
335 av_extend (av, AvMAX (av) + 1); 392 av_extend (av, AvMAX (av) + 1);
336 393
337 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 394 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
338} 395}
339 396
340/** load & save, init *******************************************************/ 397/** load & save, init *******************************************************/
341
342#define SB do {
343#define SE } while (0)
344
345#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
346 398
347static void 399static void
348load_perl (pTHX_ Coro__State c) 400load_perl (pTHX_ Coro__State c)
349{ 401{
350#define VAR(name,type) PL_ ## name = c->name; 402#define VAR(name,type) PL_ ## name = c->name;
351# include "state.h" 403# include "state.h"
352#undef VAR 404#undef VAR
353 405
354 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 406 GvSV (PL_defgv) = c->defsv;
355 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 407 GvAV (PL_defgv) = c->defav;
356 if (c->errsv) REPLACE_SV (ERRSV , c->errsv); 408 GvSV (PL_errgv) = c->errsv;
357 if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh); 409 GvSV (irsgv) = c->irssv_sv;
358
359 if (c->irssv)
360 {
361 if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv))
362 {
363 SvREFCNT_dec (c->irssv);
364 c->irssv = 0;
365 }
366 else
367 {
368 REPLACE_SV (PL_rs, c->irssv);
369 if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
370 sv_setsv (c->irssv_sv, PL_rs);
371 }
372 }
373 410
374 { 411 {
375 dSP; 412 dSP;
376 CV *cv; 413 CV *cv;
377 414
378 /* now do the ugly restore mess */ 415 /* now do the ugly restore mess */
379 while ((cv = (CV *)POPs)) 416 while (expect_true (cv = (CV *)POPs))
380 { 417 {
381 put_padlist (aTHX_ cv); /* mark this padlist as available */ 418 put_padlist (aTHX_ cv); /* mark this padlist as available */
382 CvDEPTH (cv) = PTR2IV (POPs); 419 CvDEPTH (cv) = PTR2IV (POPs);
383 CvPADLIST (cv) = (AV *)POPs; 420 CvPADLIST (cv) = (AV *)POPs;
384 } 421 }
… …
403 440
404 XPUSHs (Nullsv); 441 XPUSHs (Nullsv);
405 /* this loop was inspired by pp_caller */ 442 /* this loop was inspired by pp_caller */
406 for (;;) 443 for (;;)
407 { 444 {
408 while (cxix >= 0) 445 while (expect_true (cxix >= 0))
409 { 446 {
410 PERL_CONTEXT *cx = &ccstk[cxix--]; 447 PERL_CONTEXT *cx = &ccstk[cxix--];
411 448
412 if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT) 449 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT))
413 { 450 {
414 CV *cv = cx->blk_sub.cv; 451 CV *cv = cx->blk_sub.cv;
415 452
416 if (CvDEPTH (cv)) 453 if (expect_true (CvDEPTH (cv)))
417 { 454 {
418 EXTEND (SP, 3); 455 EXTEND (SP, 3);
419 PUSHs ((SV *)CvPADLIST (cv)); 456 PUSHs ((SV *)CvPADLIST (cv));
420 PUSHs (INT2PTR (SV *, CvDEPTH (cv))); 457 PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
421 PUSHs ((SV *)cv); 458 PUSHs ((SV *)cv);
… …
424 get_padlist (aTHX_ cv); 461 get_padlist (aTHX_ cv);
425 } 462 }
426 } 463 }
427 } 464 }
428 465
429 if (top_si->si_type == PERLSI_MAIN) 466 if (expect_true (top_si->si_type == PERLSI_MAIN))
430 break; 467 break;
431 468
432 top_si = top_si->si_prev; 469 top_si = top_si->si_prev;
433 ccstk = top_si->si_cxstack; 470 ccstk = top_si->si_cxstack;
434 cxix = top_si->si_cxix; 471 cxix = top_si->si_cxix;
435 } 472 }
436 473
437 PUTBACK; 474 PUTBACK;
438 } 475 }
439 476
440 c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; 477 c->defav = GvAV (PL_defgv);
441 c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; 478 c->defsv = DEFSV;
442 c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; 479 c->errsv = ERRSV;
443 c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0; 480 c->irssv_sv = GvSV (irsgv);
444 c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
445 481
446#define VAR(name,type)c->name = PL_ ## name; 482#define VAR(name,type)c->name = PL_ ## name;
447# include "state.h" 483# include "state.h"
448#undef VAR 484#undef VAR
449} 485}
… …
502 * destroy the stacks, the callchain etc... 538 * destroy the stacks, the callchain etc...
503 */ 539 */
504static void 540static void
505coro_destroy_stacks (pTHX) 541coro_destroy_stacks (pTHX)
506{ 542{
507 if (!IN_DESTRUCT)
508 {
509 /* restore all saved variables and stuff */
510 LEAVE_SCOPE (0);
511 assert (PL_tmps_floor == -1);
512
513 /* free all temporaries */
514 FREETMPS;
515 assert (PL_tmps_ix == -1);
516
517 /* unwind all extra stacks */
518 POPSTACK_TO (PL_mainstack);
519
520 /* unwind main stack */
521 dounwind (-1);
522 }
523
524 while (PL_curstackinfo->si_next) 543 while (PL_curstackinfo->si_next)
525 PL_curstackinfo = PL_curstackinfo->si_next; 544 PL_curstackinfo = PL_curstackinfo->si_next;
526 545
527 while (PL_curstackinfo) 546 while (PL_curstackinfo)
528 { 547 {
… …
544 Safefree (PL_retstack); 563 Safefree (PL_retstack);
545#endif 564#endif
546} 565}
547 566
548static size_t 567static size_t
549coro_rss (struct coro *coro) 568coro_rss (pTHX_ struct coro *coro)
550{ 569{
551 size_t rss = sizeof (coro); 570 size_t rss = sizeof (*coro);
552 571
553 if (coro->mainstack) 572 if (coro->mainstack)
554 { 573 {
555 if (coro->flags & CF_RUNNING) 574 if (coro->flags & CF_RUNNING)
556 { 575 {
… …
558 # include "state.h" 577 # include "state.h"
559 #undef VAR 578 #undef VAR
560 } 579 }
561 580
562 rss += sizeof (coro->curstackinfo); 581 rss += sizeof (coro->curstackinfo);
563 rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *); 582 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
564 rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); 583 rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
565 rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); 584 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
566 rss += coro->tmps_max * sizeof (SV *); 585 rss += coro->tmps_max * sizeof (SV *);
567 rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); 586 rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
568 rss += coro->scopestack_max * sizeof (I32); 587 rss += coro->scopestack_max * sizeof (I32);
569 rss += coro->savestack_max * sizeof (ANY); 588 rss += coro->savestack_max * sizeof (ANY);
570 589
… …
577} 596}
578 597
579/** coroutine stack handling ************************************************/ 598/** coroutine stack handling ************************************************/
580 599
581static void 600static void
582setup_coro (pTHX_ struct coro *coro) 601coro_setup (pTHX_ struct coro *coro)
583{ 602{
584 /* 603 /*
585 * emulate part of the perl startup here. 604 * emulate part of the perl startup here.
586 */ 605 */
587 coro_init_stacks (aTHX); 606 coro_init_stacks (aTHX);
588 607
608 PL_runops = RUNOPS_DEFAULT;
589 PL_curcop = &PL_compiling; 609 PL_curcop = &PL_compiling;
590 PL_in_eval = EVAL_NULL; 610 PL_in_eval = EVAL_NULL;
591 PL_comppad = 0; 611 PL_comppad = 0;
592 PL_curpm = 0; 612 PL_curpm = 0;
613 PL_curpad = 0;
593 PL_localizing = 0; 614 PL_localizing = 0;
594 PL_dirty = 0; 615 PL_dirty = 0;
595 PL_restartop = 0; 616 PL_restartop = 0;
617
618 GvSV (PL_defgv) = newSV (0);
619 GvAV (PL_defgv) = coro->args; coro->args = 0;
620 GvSV (PL_errgv) = newSV (0);
621 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
622 PL_rs = newSVsv (GvSV (irsgv));
623 PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);
596 624
597 { 625 {
598 dSP; 626 dSP;
599 LOGOP myop; 627 LOGOP myop;
600 628
601 SvREFCNT_dec (GvAV (PL_defgv));
602 GvAV (PL_defgv) = coro->args; coro->args = 0;
603
604 Zero (&myop, 1, LOGOP); 629 Zero (&myop, 1, LOGOP);
605 myop.op_next = Nullop; 630 myop.op_next = Nullop;
606 myop.op_flags = OPf_WANT_VOID; 631 myop.op_flags = OPf_WANT_VOID;
607 632
608 PUSHMARK (SP); 633 PUSHMARK (SP);
609 XPUSHs (av_shift (GvAV (PL_defgv))); 634 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
610 PUTBACK; 635 PUTBACK;
611 PL_op = (OP *)&myop; 636 PL_op = (OP *)&myop;
612 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 637 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
613 SPAGAIN; 638 SPAGAIN;
614 } 639 }
615 640
616 ENTER; /* necessary e.g. for dounwind */ 641 ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */
642}
643
644static void
645coro_destroy (pTHX_ struct coro *coro)
646{
647 if (!IN_DESTRUCT)
648 {
649 /* restore all saved variables and stuff */
650 LEAVE_SCOPE (0);
651 assert (PL_tmps_floor == -1);
652
653 /* free all temporaries */
654 FREETMPS;
655 assert (PL_tmps_ix == -1);
656
657 /* unwind all extra stacks */
658 POPSTACK_TO (PL_mainstack);
659
660 /* unwind main stack */
661 dounwind (-1);
662 }
663
664 SvREFCNT_dec (GvSV (PL_defgv));
665 SvREFCNT_dec (GvAV (PL_defgv));
666 SvREFCNT_dec (GvSV (PL_errgv));
667 SvREFCNT_dec (PL_defoutgv);
668 SvREFCNT_dec (PL_rs);
669 SvREFCNT_dec (GvSV (irsgv));
670
671 SvREFCNT_dec (coro->saved_deffh);
672 SvREFCNT_dec (coro->throw);
673
674 coro_destroy_stacks (aTHX);
617} 675}
618 676
619static void 677static void
620free_coro_mortal (pTHX) 678free_coro_mortal (pTHX)
621{ 679{
622 if (coro_mortal) 680 if (expect_true (coro_mortal))
623 { 681 {
624 SvREFCNT_dec (coro_mortal); 682 SvREFCNT_dec (coro_mortal);
625 coro_mortal = 0; 683 coro_mortal = 0;
626 } 684 }
685}
686
687static int
688runops_trace (pTHX)
689{
690 COP *oldcop = 0;
691 int oldcxix = -2;
692 struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */
693 coro_cctx *cctx = coro->cctx;
694
695 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
696 {
697 PERL_ASYNC_CHECK ();
698
699 if (cctx->flags & CC_TRACE_ALL)
700 {
701 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
702 {
703 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
704 SV **bot, **top;
705 AV *av = newAV (); /* return values */
706 SV **cb;
707 dSP;
708
709 GV *gv = CvGV (cx->blk_sub.cv);
710 SV *fullname = sv_2mortal (newSV (0));
711 if (isGV (gv))
712 gv_efullname3 (fullname, gv, 0);
713
714 bot = PL_stack_base + cx->blk_oldsp + 1;
715 top = cx->blk_gimme == G_ARRAY ? SP + 1
716 : cx->blk_gimme == G_SCALAR ? bot + 1
717 : bot;
718
719 av_extend (av, top - bot);
720 while (bot < top)
721 av_push (av, SvREFCNT_inc (*bot++));
722
723 PL_runops = RUNOPS_DEFAULT;
724 ENTER;
725 SAVETMPS;
726 EXTEND (SP, 3);
727 PUSHMARK (SP);
728 PUSHs (&PL_sv_no);
729 PUSHs (fullname);
730 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
731 PUTBACK;
732 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
733 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
734 SPAGAIN;
735 FREETMPS;
736 LEAVE;
737 PL_runops = runops_trace;
738 }
739
740 if (oldcop != PL_curcop)
741 {
742 oldcop = PL_curcop;
743
744 if (PL_curcop != &PL_compiling)
745 {
746 SV **cb;
747
748 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
749 {
750 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
751
752 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
753 {
754 runops_proc_t old_runops = PL_runops;
755 dSP;
756 GV *gv = CvGV (cx->blk_sub.cv);
757 SV *fullname = sv_2mortal (newSV (0));
758
759 if (isGV (gv))
760 gv_efullname3 (fullname, gv, 0);
761
762 PL_runops = RUNOPS_DEFAULT;
763 ENTER;
764 SAVETMPS;
765 EXTEND (SP, 3);
766 PUSHMARK (SP);
767 PUSHs (&PL_sv_yes);
768 PUSHs (fullname);
769 PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
770 PUTBACK;
771 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
772 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
773 SPAGAIN;
774 FREETMPS;
775 LEAVE;
776 PL_runops = runops_trace;
777 }
778
779 oldcxix = cxstack_ix;
780 }
781
782 if (cctx->flags & CC_TRACE_LINE)
783 {
784 dSP;
785
786 PL_runops = RUNOPS_DEFAULT;
787 ENTER;
788 SAVETMPS;
789 EXTEND (SP, 3);
790 PL_runops = RUNOPS_DEFAULT;
791 PUSHMARK (SP);
792 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
793 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
794 PUTBACK;
795 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
796 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
797 SPAGAIN;
798 FREETMPS;
799 LEAVE;
800 PL_runops = runops_trace;
801 }
802 }
803 }
804 }
805 }
806
807 TAINT_NOT;
808 return 0;
627} 809}
628 810
629/* inject a fake call to Coro::State::_cctx_init into the execution */ 811/* inject a fake call to Coro::State::_cctx_init into the execution */
630/* _cctx_init should be careful, as it could be called at almost any time */ 812/* _cctx_init should be careful, as it could be called at almost any time */
631/* during execution of a perl program */ 813/* during execution of a perl program */
632static void NOINLINE 814static void NOINLINE
633prepare_cctx (pTHX_ coro_cctx *cctx) 815prepare_cctx (pTHX_ coro_cctx *cctx)
634{ 816{
635 dSP; 817 dSP;
636 LOGOP myop; 818 LOGOP myop;
819
820 PL_top_env = &PL_start_env;
821
822 if (cctx->flags & CC_TRACE)
823 PL_runops = runops_trace;
637 824
638 Zero (&myop, 1, LOGOP); 825 Zero (&myop, 1, LOGOP);
639 myop.op_next = PL_op; 826 myop.op_next = PL_op;
640 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 827 myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
641 828
… …
658 dTHX; 845 dTHX;
659 846
660 /* coro_run is the alternative tail of transfer(), so unlock here. */ 847 /* coro_run is the alternative tail of transfer(), so unlock here. */
661 UNLOCK; 848 UNLOCK;
662 849
663 PL_top_env = &PL_start_env; 850 /* we now skip the entersub that lead to transfer() */
851 PL_op = PL_op->op_next;
664 852
665 /* inject a fake subroutine call to cctx_init */ 853 /* inject a fake subroutine call to cctx_init */
666 prepare_cctx (aTHX_ (coro_cctx *)arg); 854 prepare_cctx (aTHX_ (coro_cctx *)arg);
667 855
668 /* somebody or something will hit me for both perl_run and PL_restartop */ 856 /* somebody or something will hit me for both perl_run and PL_restartop */
… …
702# if CORO_STACKGUARD 890# if CORO_STACKGUARD
703 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); 891 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
704# endif 892# endif
705 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; 893 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
706 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; 894 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
707 cctx->mapped = 1; 895 cctx->flags |= CC_MAPPED;
708 } 896 }
709 else 897 else
710#endif 898#endif
711 { 899 {
712 cctx->ssize = coro_stacksize * (long)sizeof (long); 900 cctx->ssize = coro_stacksize * (long)sizeof (long);
… …
739#if CORO_USE_VALGRIND 927#if CORO_USE_VALGRIND
740 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); 928 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
741#endif 929#endif
742 930
743#if HAVE_MMAP 931#if HAVE_MMAP
744 if (cctx->mapped) 932 if (cctx->flags & CC_MAPPED)
745 munmap (cctx->sptr, cctx->ssize); 933 munmap (cctx->sptr, cctx->ssize);
746 else 934 else
747#endif 935#endif
748 Safefree (cctx->sptr); 936 Safefree (cctx->sptr);
749 937
750 Safefree (cctx); 938 Safefree (cctx);
751} 939}
752 940
941/* wether this cctx should be destructed */
942#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE))
943
753static coro_cctx * 944static coro_cctx *
754cctx_get (pTHX) 945cctx_get (pTHX)
755{ 946{
756 while (cctx_first) 947 while (expect_true (cctx_first))
757 { 948 {
758 coro_cctx *cctx = cctx_first; 949 coro_cctx *cctx = cctx_first;
759 cctx_first = cctx->next; 950 cctx_first = cctx->next;
760 --cctx_idle; 951 --cctx_idle;
761 952
762 if (cctx->ssize >= coro_stacksize) 953 if (expect_true (!CCTX_EXPIRED (cctx)))
763 return cctx; 954 return cctx;
764 955
765 cctx_destroy (cctx); 956 cctx_destroy (cctx);
766 } 957 }
767 958
768 PL_op = PL_op->op_next;
769 return cctx_new (); 959 return cctx_new ();
770} 960}
771 961
772static void 962static void
773cctx_put (coro_cctx *cctx) 963cctx_put (coro_cctx *cctx)
774{ 964{
775 /* free another cctx if overlimit */ 965 /* free another cctx if overlimit */
776 if (cctx_idle >= MAX_IDLE_CCTX) 966 if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
777 { 967 {
778 coro_cctx *first = cctx_first; 968 coro_cctx *first = cctx_first;
779 cctx_first = first->next; 969 cctx_first = first->next;
780 --cctx_idle; 970 --cctx_idle;
781 971
782 assert (!first->inuse);
783 cctx_destroy (first); 972 cctx_destroy (first);
784 } 973 }
785 974
786 ++cctx_idle; 975 ++cctx_idle;
787 cctx->next = cctx_first; 976 cctx->next = cctx_first;
788 cctx_first = cctx; 977 cctx_first = cctx;
789} 978}
790 979
791/** coroutine switching *****************************************************/ 980/** coroutine switching *****************************************************/
792 981
793/* never call directly, always through the coro_state_transfer global variable */ 982static void
983transfer_check (pTHX_ struct coro *prev, struct coro *next)
984{
985 if (expect_true (prev != next))
986 {
987 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
988 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
989
990 if (expect_false (next->flags & CF_RUNNING))
991 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
992
993 if (expect_false (next->flags & CF_DESTROYED))
994 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
995
996 if (expect_false (PL_lex_state != LEX_NOTPARSING))
997 croak ("Coro::State::transfer called while parsing, but this is not supported");
998 }
999}
1000
1001/* always use the TRANSFER macro */
794static void NOINLINE 1002static void NOINLINE
795transfer (pTHX_ struct coro *prev, struct coro *next) 1003transfer (pTHX_ struct coro *prev, struct coro *next)
796{ 1004{
797 dSTACKLEVEL; 1005 dSTACKLEVEL;
798 1006
799 /* sometimes transfer is only called to set idle_sp */ 1007 /* sometimes transfer is only called to set idle_sp */
800 if (!next) 1008 if (expect_false (!next))
801 { 1009 {
802 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1010 ((coro_cctx *)prev)->idle_sp = STACKLEVEL;
803 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1011 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
804 } 1012 }
805 else if (prev != next) 1013 else if (expect_true (prev != next))
806 { 1014 {
807 coro_cctx *prev__cctx; 1015 coro_cctx *prev__cctx;
808 1016
809 if (prev->flags & CF_NEW) 1017 if (expect_false (prev->flags & CF_NEW))
810 { 1018 {
811 /* create a new empty context */ 1019 /* create a new empty context */
812 Newz (0, prev->cctx, 1, coro_cctx); 1020 Newz (0, prev->cctx, 1, coro_cctx);
813 prev->cctx->inuse = 1;
814 prev->flags &= ~CF_NEW; 1021 prev->flags &= ~CF_NEW;
815 prev->flags |= CF_RUNNING; 1022 prev->flags |= CF_RUNNING;
816 } 1023 }
817 1024
818 /*TODO: must not croak here */
819 if (!prev->flags & CF_RUNNING)
820 croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
821
822 if (next->flags & CF_RUNNING)
823 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
824
825 if (next->flags & CF_DESTROYED)
826 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
827
828 prev->flags &= ~CF_RUNNING; 1025 prev->flags &= ~CF_RUNNING;
829 next->flags |= CF_RUNNING; 1026 next->flags |= CF_RUNNING;
830 1027
831 LOCK; 1028 LOCK;
832 1029
833 if (next->flags & CF_NEW) 1030 if (expect_false (next->flags & CF_NEW))
834 { 1031 {
835 /* need to start coroutine */ 1032 /* need to start coroutine */
836 next->flags &= ~CF_NEW; 1033 next->flags &= ~CF_NEW;
837 /* first get rid of the old state */ 1034 /* first get rid of the old state */
838 save_perl (aTHX_ prev); 1035 save_perl (aTHX_ prev);
839 /* setup coroutine call */ 1036 /* setup coroutine call */
840 setup_coro (aTHX_ next); 1037 coro_setup (aTHX_ next);
841 /* need a new stack */
842 assert (!next->cctx);
843 } 1038 }
844 else 1039 else
845 { 1040 {
846 /* coroutine already started */ 1041 /* coroutine already started */
847 save_perl (aTHX_ prev); 1042 save_perl (aTHX_ prev);
… …
849 } 1044 }
850 1045
851 prev__cctx = prev->cctx; 1046 prev__cctx = prev->cctx;
852 1047
853 /* possibly "free" the cctx */ 1048 /* possibly "free" the cctx */
854 if (prev__cctx->idle_sp == STACKLEVEL) 1049 if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
855 { 1050 {
856 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ 1051 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
857 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); 1052 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
858 1053
859 prev->cctx = 0; 1054 prev->cctx = 0;
860 1055
1056 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1057 /* without this the next cctx_get might destroy the prev__cctx while still in use */
1058 if (expect_false (CCTX_EXPIRED (prev__cctx)))
1059 next->cctx = cctx_get (aTHX);
1060
861 cctx_put (prev__cctx); 1061 cctx_put (prev__cctx);
862 prev__cctx->inuse = 0;
863 } 1062 }
864 1063
1064 ++next->usecount;
1065
865 if (!next->cctx) 1066 if (expect_true (!next->cctx))
866 {
867 next->cctx = cctx_get (aTHX); 1067 next->cctx = cctx_get (aTHX);
868 assert (!next->cctx->inuse);
869 next->cctx->inuse = 1;
870 }
871 1068
872 if (prev__cctx != next->cctx) 1069 if (expect_false (prev__cctx != next->cctx))
873 { 1070 {
874 prev__cctx->top_env = PL_top_env; 1071 prev__cctx->top_env = PL_top_env;
875 PL_top_env = next->cctx->top_env; 1072 PL_top_env = next->cctx->top_env;
876 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1073 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
877 } 1074 }
878 1075
879 free_coro_mortal (aTHX); 1076 free_coro_mortal (aTHX);
880 UNLOCK; 1077 UNLOCK;
1078
1079 if (expect_false (prev->throw || next->throw))
1080 {
1081 struct coro *coro = SvSTATE (coro_current);
1082
1083 if (coro->throw)
1084 {
1085 SV *exception = coro->throw;
1086 coro->throw = 0;
1087 sv_setsv (ERRSV, exception);
1088 croak (0);
1089 }
1090 }
881 } 1091 }
882} 1092}
883 1093
884struct transfer_args 1094struct transfer_args
885{ 1095{
886 struct coro *prev, *next; 1096 struct coro *prev, *next;
887}; 1097};
888 1098
889#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) 1099#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
1100#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
890 1101
891/** high level stuff ********************************************************/ 1102/** high level stuff ********************************************************/
892 1103
893static int 1104static int
894coro_state_destroy (pTHX_ struct coro *coro) 1105coro_state_destroy (pTHX_ struct coro *coro)
… …
911 1122
912 if (coro->mainstack && coro->mainstack != main_mainstack) 1123 if (coro->mainstack && coro->mainstack != main_mainstack)
913 { 1124 {
914 struct coro temp; 1125 struct coro temp;
915 1126
916 assert (!(coro->flags & CF_RUNNING));
917
918 Zero (&temp, 1, struct coro);
919 temp.save = CORO_SAVE_ALL;
920
921 if (coro->flags & CF_RUNNING) 1127 if (coro->flags & CF_RUNNING)
922 croak ("FATAL: tried to destroy currently running coroutine"); 1128 croak ("FATAL: tried to destroy currently running coroutine");
923 1129
924 save_perl (aTHX_ &temp); 1130 save_perl (aTHX_ &temp);
925 load_perl (aTHX_ coro); 1131 load_perl (aTHX_ coro);
926 1132
927 coro_destroy_stacks (aTHX); 1133 coro_destroy (aTHX_ coro);
928 1134
929 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ 1135 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
930 1136
931 coro->mainstack = 0; 1137 coro->mainstack = 0;
932 } 1138 }
… …
977#else 1183#else
978# define MGf_DUP 0 1184# define MGf_DUP 0
979#endif 1185#endif
980}; 1186};
981 1187
982static struct coro *
983SvSTATE_ (pTHX_ SV *coro)
984{
985 HV *stash;
986 MAGIC *mg;
987
988 if (SvROK (coro))
989 coro = SvRV (coro);
990
991 stash = SvSTASH (coro);
992 if (stash != coro_stash && stash != coro_state_stash)
993 {
994 /* very slow, but rare, check */
995 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
996 croak ("Coro::State object required");
997 }
998
999 mg = CORO_MAGIC (coro);
1000 return (struct coro *)mg->mg_ptr;
1001}
1002
1003#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
1004
1005static void 1188static void
1006prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) 1189prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv)
1007{ 1190{
1008 ta->prev = SvSTATE (prev_sv); 1191 ta->prev = SvSTATE (prev_sv);
1009 ta->next = SvSTATE (next_sv); 1192 ta->next = SvSTATE (next_sv);
1193 TRANSFER_CHECK (*ta);
1010} 1194}
1011 1195
1012static void 1196static void
1013api_transfer (SV *prev_sv, SV *next_sv) 1197api_transfer (SV *prev_sv, SV *next_sv)
1014{ 1198{
1015 dTHX; 1199 dTHX;
1016 struct transfer_args ta; 1200 struct transfer_args ta;
1017 1201
1018 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1202 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1019 TRANSFER (ta); 1203 TRANSFER (ta);
1020}
1021
1022static int
1023api_save (SV *coro_sv, int new_save)
1024{
1025 dTHX;
1026 struct coro *coro = SvSTATE (coro_sv);
1027 int old_save = coro->save;
1028
1029 if (new_save >= 0)
1030 coro->save = new_save;
1031
1032 return old_save;
1033} 1204}
1034 1205
1035/** Coro ********************************************************************/ 1206/** Coro ********************************************************************/
1036 1207
1037static void 1208static void
… …
1096 { 1267 {
1097 LOCK; 1268 LOCK;
1098 next_sv = coro_deq (aTHX_ PRIO_MIN); 1269 next_sv = coro_deq (aTHX_ PRIO_MIN);
1099 1270
1100 /* nothing to schedule: call the idle handler */ 1271 /* nothing to schedule: call the idle handler */
1101 if (!next_sv) 1272 if (expect_false (!next_sv))
1102 { 1273 {
1103 dSP; 1274 dSP;
1104 UNLOCK; 1275 UNLOCK;
1105 1276
1106 ENTER; 1277 ENTER;
… …
1116 } 1287 }
1117 1288
1118 ta->next = SvSTATE (next_sv); 1289 ta->next = SvSTATE (next_sv);
1119 1290
1120 /* cannot transfer to destroyed coros, skip and look for next */ 1291 /* cannot transfer to destroyed coros, skip and look for next */
1121 if (ta->next->flags & CF_DESTROYED) 1292 if (expect_false (ta->next->flags & CF_DESTROYED))
1122 { 1293 {
1123 UNLOCK; 1294 UNLOCK;
1124 SvREFCNT_dec (next_sv); 1295 SvREFCNT_dec (next_sv);
1125 /* coro_nready is already taken care of by destroy */ 1296 /* coro_nready is already taken care of by destroy */
1126 continue; 1297 continue;
… …
1131 break; 1302 break;
1132 } 1303 }
1133 1304
1134 /* free this only after the transfer */ 1305 /* free this only after the transfer */
1135 prev_sv = SvRV (coro_current); 1306 prev_sv = SvRV (coro_current);
1136 SvRV_set (coro_current, next_sv);
1137 ta->prev = SvSTATE (prev_sv); 1307 ta->prev = SvSTATE (prev_sv);
1138 1308 TRANSFER_CHECK (*ta);
1139 assert (ta->next->flags & CF_READY); 1309 assert (ta->next->flags & CF_READY);
1140 ta->next->flags &= ~CF_READY; 1310 ta->next->flags &= ~CF_READY;
1311 SvRV_set (coro_current, next_sv);
1141 1312
1142 LOCK; 1313 LOCK;
1143 free_coro_mortal (aTHX); 1314 free_coro_mortal (aTHX);
1144 coro_mortal = prev_sv; 1315 coro_mortal = prev_sv;
1145 UNLOCK; 1316 UNLOCK;
… …
1182 dTHX; 1353 dTHX;
1183 struct transfer_args ta; 1354 struct transfer_args ta;
1184 1355
1185 prepare_cede (aTHX_ &ta); 1356 prepare_cede (aTHX_ &ta);
1186 1357
1187 if (ta.prev != ta.next) 1358 if (expect_true (ta.prev != ta.next))
1188 { 1359 {
1189 TRANSFER (ta); 1360 TRANSFER (ta);
1190 return 1; 1361 return 1;
1191 } 1362 }
1192 else 1363 else
… …
1206 } 1377 }
1207 else 1378 else
1208 return 0; 1379 return 0;
1209} 1380}
1210 1381
1382static void
1383api_trace (SV *coro_sv, int flags)
1384{
1385 dTHX;
1386 struct coro *coro = SvSTATE (coro_sv);
1387
1388 if (flags & CC_TRACE)
1389 {
1390 if (!coro->cctx)
1391 coro->cctx = cctx_new ();
1392 else if (!(coro->cctx->flags & CC_TRACE))
1393 croak ("cannot enable tracing on coroutine with custom stack");
1394
1395 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1396 }
1397 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1398 {
1399 coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
1400
1401 if (coro->flags & CF_RUNNING)
1402 PL_runops = RUNOPS_DEFAULT;
1403 else
1404 coro->runops = RUNOPS_DEFAULT;
1405 }
1406}
1407
1211MODULE = Coro::State PACKAGE = Coro::State 1408MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1212 1409
1213PROTOTYPES: DISABLE 1410PROTOTYPES: DISABLE
1214 1411
1215BOOT: 1412BOOT:
1216{ 1413{
1217#ifdef USE_ITHREADS 1414#ifdef USE_ITHREADS
1218 MUTEX_INIT (&coro_mutex); 1415 MUTEX_INIT (&coro_mutex);
1219#endif 1416#endif
1220 BOOT_PAGESIZE; 1417 BOOT_PAGESIZE;
1221 1418
1419 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1420 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
1421
1222 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 1422 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1223 1423
1224 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); 1424 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1225 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); 1425 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1226 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1227 newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1228 newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1229 newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF)); 1426 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1230 newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); 1427 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1231 1428
1232 main_mainstack = PL_mainstack; 1429 main_mainstack = PL_mainstack;
1233 main_top_env = PL_top_env; 1430 main_top_env = PL_top_env;
1234 1431
1235 while (main_top_env->je_prev) 1432 while (main_top_env->je_prev)
… …
1248 struct coro *coro; 1445 struct coro *coro;
1249 HV *hv; 1446 HV *hv;
1250 int i; 1447 int i;
1251 1448
1252 Newz (0, coro, 1, struct coro); 1449 Newz (0, coro, 1, struct coro);
1253 coro->args = newAV (); 1450 coro->args = newAV ();
1254 coro->save = CORO_SAVE_DEF;
1255 coro->flags = CF_NEW; 1451 coro->flags = CF_NEW;
1256 1452
1257 if (coro_first) coro_first->prev = coro; 1453 if (coro_first) coro_first->prev = coro;
1258 coro->next = coro_first; 1454 coro->next = coro_first;
1259 coro_first = coro; 1455 coro_first = coro;
1260 1456
1261 coro->hv = hv = newHV (); 1457 coro->hv = hv = newHV ();
1262 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; 1458 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;
1263 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 1459 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1264 1460
1461 av_extend (coro->args, items - 1);
1265 for (i = 1; i < items; i++) 1462 for (i = 1; i < items; i++)
1266 av_push (coro->args, newSVsv (ST (i))); 1463 av_push (coro->args, newSVsv (ST (i)));
1267} 1464}
1268 OUTPUT: 1465 OUTPUT:
1269 RETVAL 1466 RETVAL
1270 1467
1271int 1468# these not obviously related functions are all rolled into the same xs
1272save (SV *coro, int new_save = -1) 1469# function to increase chances that they all will call transfer with the same
1273 CODE: 1470# stack offset
1274 RETVAL = api_save (coro, new_save);
1275 OUTPUT:
1276 RETVAL
1277
1278int
1279save_also (SV *coro_sv, int save_also)
1280 CODE:
1281{
1282 struct coro *coro = SvSTATE (coro_sv);
1283 RETVAL = coro->save;
1284 coro->save |= save_also;
1285}
1286 OUTPUT:
1287 RETVAL
1288
1289void 1471void
1290_set_stacklevel (...) 1472_set_stacklevel (...)
1291 ALIAS: 1473 ALIAS:
1292 Coro::State::transfer = 1 1474 Coro::State::transfer = 1
1293 Coro::schedule = 2 1475 Coro::schedule = 2
… …
1327 } 1509 }
1328 1510
1329 BARRIER; 1511 BARRIER;
1330 TRANSFER (ta); 1512 TRANSFER (ta);
1331 1513
1332 if (GIMME_V != G_VOID && ta.next != ta.prev) 1514 if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))
1333 XSRETURN_YES; 1515 XSRETURN_YES;
1334} 1516}
1335 1517
1336bool 1518bool
1337_destroy (SV *coro_sv) 1519_destroy (SV *coro_sv)
… …
1379 if (coro->hv) 1561 if (coro->hv)
1380 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 1562 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
1381} 1563}
1382 1564
1383void 1565void
1384_eval (Coro::State coro, SV *coderef) 1566call (Coro::State coro, SV *coderef)
1567 ALIAS:
1568 eval = 1
1385 CODE: 1569 CODE:
1386{ 1570{
1387 if (coro->mainstack) 1571 if (coro->mainstack)
1388 { 1572 {
1389 struct coro temp; 1573 struct coro temp;
1390 Zero (&temp, 1, struct coro); 1574 Zero (&temp, 1, struct coro);
1391 temp.save = CORO_SAVE_ALL;
1392 1575
1393 if (!(coro->flags & CF_RUNNING)) 1576 if (!(coro->flags & CF_RUNNING))
1394 { 1577 {
1395 save_perl (aTHX_ &temp); 1578 save_perl (aTHX_ &temp);
1396 load_perl (aTHX_ coro); 1579 load_perl (aTHX_ coro);
… …
1400 dSP; 1583 dSP;
1401 ENTER; 1584 ENTER;
1402 SAVETMPS; 1585 SAVETMPS;
1403 PUSHMARK (SP); 1586 PUSHMARK (SP);
1404 PUTBACK; 1587 PUTBACK;
1588 if (ix)
1589 eval_sv (coderef, 0);
1590 else
1405 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1591 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1406 SPAGAIN; 1592 SPAGAIN;
1407 FREETMPS; 1593 FREETMPS;
1408 LEAVE; 1594 LEAVE;
1409 PUTBACK; 1595 PUTBACK;
1410 } 1596 }
… …
1414 save_perl (aTHX_ coro); 1600 save_perl (aTHX_ coro);
1415 load_perl (aTHX_ &temp); 1601 load_perl (aTHX_ &temp);
1416 } 1602 }
1417 } 1603 }
1418} 1604}
1419 1605
1420SV * 1606SV *
1421is_ready (Coro::State coro) 1607is_ready (Coro::State coro)
1422 PROTOTYPE: $ 1608 PROTOTYPE: $
1423 ALIAS: 1609 ALIAS:
1424 is_ready = CF_READY 1610 is_ready = CF_READY
… …
1428 CODE: 1614 CODE:
1429 RETVAL = boolSV (coro->flags & ix); 1615 RETVAL = boolSV (coro->flags & ix);
1430 OUTPUT: 1616 OUTPUT:
1431 RETVAL 1617 RETVAL
1432 1618
1619void
1620api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1621
1622SV *
1623has_stack (Coro::State coro)
1624 PROTOTYPE: $
1625 CODE:
1626 RETVAL = boolSV (!!coro->cctx);
1627 OUTPUT:
1628 RETVAL
1629
1630int
1631is_traced (Coro::State coro)
1632 PROTOTYPE: $
1633 CODE:
1634 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1635 OUTPUT:
1636 RETVAL
1637
1433IV 1638IV
1434rss (Coro::State coro) 1639rss (Coro::State coro)
1435 PROTOTYPE: $ 1640 PROTOTYPE: $
1641 ALIAS:
1642 usecount = 1
1436 CODE: 1643 CODE:
1437 RETVAL = coro_rss (coro); 1644 switch (ix)
1645 {
1646 case 0: RETVAL = coro_rss (aTHX_ coro); break;
1647 case 1: RETVAL = coro->usecount; break;
1648 }
1438 OUTPUT: 1649 OUTPUT:
1439 RETVAL 1650 RETVAL
1440 1651
1441 1652
1442MODULE = Coro::State PACKAGE = Coro 1653MODULE = Coro::State PACKAGE = Coro
… …
1447 1658
1448 sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE); 1659 sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
1449 sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE); 1660 sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
1450 av_async_pool = get_av ("Coro::async_pool", TRUE); 1661 av_async_pool = get_av ("Coro::async_pool", TRUE);
1451 1662
1452 coro_current = get_sv ("Coro::current", FALSE); 1663 coro_current = get_sv ("Coro::current", FALSE);
1453 SvREADONLY_on (coro_current); 1664 SvREADONLY_on (coro_current);
1454 1665
1455 coro_stash = gv_stashpv ("Coro", TRUE); 1666 coro_stash = gv_stashpv ("Coro", TRUE);
1456 1667
1457 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 1668 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
… …
1466 1677
1467 { 1678 {
1468 SV *sv = perl_get_sv("Coro::API", 1); 1679 SV *sv = perl_get_sv("Coro::API", 1);
1469 1680
1470 coroapi.schedule = api_schedule; 1681 coroapi.schedule = api_schedule;
1471 coroapi.save = api_save;
1472 coroapi.cede = api_cede; 1682 coroapi.cede = api_cede;
1473 coroapi.cede_notself = api_cede_notself; 1683 coroapi.cede_notself = api_cede_notself;
1474 coroapi.ready = api_ready; 1684 coroapi.ready = api_ready;
1475 coroapi.is_ready = api_is_ready; 1685 coroapi.is_ready = api_is_ready;
1476 coroapi.nready = &coro_nready; 1686 coroapi.nready = &coro_nready;
… …
1525 CODE: 1735 CODE:
1526 RETVAL = coro_nready; 1736 RETVAL = coro_nready;
1527 OUTPUT: 1737 OUTPUT:
1528 RETVAL 1738 RETVAL
1529 1739
1740void
1741throw (Coro::State self, SV *throw = &PL_sv_undef)
1742 PROTOTYPE: $;$
1743 CODE:
1744 SvREFCNT_dec (self->throw);
1745 self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1746
1530# for async_pool speedup 1747# for async_pool speedup
1531SV * 1748void
1532_pool_1 (...) 1749_pool_1 (SV *cb)
1533 CODE: 1750 CODE:
1534{ 1751{
1535 int i, len; 1752 struct coro *coro = SvSTATE (coro_current);
1536 HV *hv = (HV *)SvRV (coro_current); 1753 HV *hv = (HV *)SvRV (coro_current);
1537 AV *defav = GvAV (PL_defgv); 1754 AV *defav = GvAV (PL_defgv);
1538 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); 1755 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1539 AV *invoke_av; 1756 AV *invoke_av;
1757 int i, len;
1540 1758
1541 if (!invoke) 1759 if (!invoke)
1542 XSRETURN_EMPTY; 1760 croak ("\3async_pool terminate\2\n");
1761
1762 SvREFCNT_dec (coro->saved_deffh);
1763 coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1543 1764
1544 hv_store (hv, "desc", sizeof ("desc") - 1, 1765 hv_store (hv, "desc", sizeof ("desc") - 1,
1545 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); 1766 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1546 1767
1547 invoke_av = (AV *)SvRV (invoke); 1768 invoke_av = (AV *)SvRV (invoke);
1548 len = av_len (invoke_av); 1769 len = av_len (invoke_av);
1549 1770
1550 RETVAL = SvREFCNT_inc (AvARRAY (invoke_av)[0]); 1771 sv_setsv (cb, AvARRAY (invoke_av)[0]);
1551 1772
1552 if (len > 0) 1773 if (len > 0)
1553 { 1774 {
1554 av_clear (defav);
1555 av_extend (defav, len); 1775 av_fill (defav, len - 1);
1556 for (i = 0; i < len; ++i) 1776 for (i = 0; i < len; ++i)
1557 av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); 1777 av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
1558 } 1778 }
1559 1779
1560 SvREFCNT_dec (invoke); 1780 SvREFCNT_dec (invoke);
1561} 1781}
1562 OUTPUT:
1563 RETVAL
1564 1782
1565void 1783void
1566_pool_2 (...) 1784_pool_2 (SV *cb)
1567 CODE: 1785 CODE:
1568{ 1786{
1569 struct coro *coro = SvSTATE (coro_current); 1787 struct coro *coro = SvSTATE (coro_current);
1570 1788
1789 sv_setsv (cb, &PL_sv_undef);
1790
1791 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1792 coro->saved_deffh = 0;
1793
1571 if (coro_rss (coro) > SvIV (sv_pool_rss) 1794 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1572 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 1795 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1573 XSRETURN_YES; 1796 croak ("\3async_pool terminate\2\n");
1574 1797
1575 av_clear (GvAV (PL_defgv)); 1798 av_clear (GvAV (PL_defgv));
1576 hv_store (SvRV (coro_current), "desc", sizeof ("desc") - 1, 1799 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1577 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); 1800 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1578 coro->save = CORO_SAVE_DEF; 1801
1579 coro->prio = 0; 1802 coro->prio = 0;
1803
1804 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1805 api_trace (coro_current, 0);
1806
1580 av_push (av_async_pool, newSVsv (coro_current)); 1807 av_push (av_async_pool, newSVsv (coro_current));
1581
1582 XSRETURN_NO;
1583} 1808}
1584 1809
1585 1810
1586MODULE = Coro::State PACKAGE = Coro::AIO 1811MODULE = Coro::State PACKAGE = Coro::AIO
1587 1812

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