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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 1.194 by root, Sat Oct 6 00:08:04 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;
593 PL_localizing = 0; 613 PL_localizing = 0;
594 PL_dirty = 0; 614 PL_dirty = 0;
595 PL_restartop = 0; 615 PL_restartop = 0;
616
617 GvSV (PL_defgv) = newSV (0);
618 GvAV (PL_defgv) = coro->args; coro->args = 0;
619 GvSV (PL_errgv) = newSV (0);
620 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
621 PL_rs = newSVsv (GvSV (irsgv));
622 PL_defoutgv = SvREFCNT_inc (stdoutgv);
623
624 ENTER; /* necessary e.g. for dounwind */
596 625
597 { 626 {
598 dSP; 627 dSP;
599 LOGOP myop; 628 LOGOP myop;
600 629
601 SvREFCNT_dec (GvAV (PL_defgv));
602 GvAV (PL_defgv) = coro->args; coro->args = 0;
603
604 Zero (&myop, 1, LOGOP); 630 Zero (&myop, 1, LOGOP);
605 myop.op_next = Nullop; 631 myop.op_next = Nullop;
606 myop.op_flags = OPf_WANT_VOID; 632 myop.op_flags = OPf_WANT_VOID;
607 633
608 PUSHMARK (SP); 634 PUSHMARK (SP);
609 XPUSHs (av_shift (GvAV (PL_defgv))); 635 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
610 PUTBACK; 636 PUTBACK;
611 PL_op = (OP *)&myop; 637 PL_op = (OP *)&myop;
612 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 638 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
613 SPAGAIN; 639 SPAGAIN;
614 } 640 }
641}
615 642
616 ENTER; /* necessary e.g. for dounwind */ 643static void
644coro_destroy (pTHX_ struct coro *coro)
645{
646 if (!IN_DESTRUCT)
647 {
648 /* restore all saved variables and stuff */
649 LEAVE_SCOPE (0);
650 assert (PL_tmps_floor == -1);
651
652 /* free all temporaries */
653 FREETMPS;
654 assert (PL_tmps_ix == -1);
655
656 /* unwind all extra stacks */
657 POPSTACK_TO (PL_mainstack);
658
659 /* unwind main stack */
660 dounwind (-1);
661 }
662
663 SvREFCNT_dec (GvSV (PL_defgv));
664 SvREFCNT_dec (GvAV (PL_defgv));
665 SvREFCNT_dec (GvSV (PL_errgv));
666 SvREFCNT_dec (PL_defoutgv);
667 SvREFCNT_dec (PL_rs);
668 SvREFCNT_dec (GvSV (irsgv));
669
670 SvREFCNT_dec (coro->saved_deffh);
671 //SvREFCNT_dec (coro->throw);
672
673 coro_destroy_stacks (aTHX);
617} 674}
618 675
619static void 676static void
620free_coro_mortal (pTHX) 677free_coro_mortal (pTHX)
621{ 678{
622 if (coro_mortal) 679 if (expect_true (coro_mortal))
623 { 680 {
624 SvREFCNT_dec (coro_mortal); 681 SvREFCNT_dec (coro_mortal);
625 coro_mortal = 0; 682 coro_mortal = 0;
626 } 683 }
684}
685
686static int
687runops_trace (pTHX)
688{
689 COP *oldcop = 0;
690 int oldcxix = -2;
691 struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */
692 coro_cctx *cctx = coro->cctx;
693
694 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
695 {
696 PERL_ASYNC_CHECK ();
697
698 if (cctx->flags & CC_TRACE_ALL)
699 {
700 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
701 {
702 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
703 SV **bot, **top;
704 AV *av = newAV (); /* return values */
705 SV **cb;
706 dSP;
707
708 GV *gv = CvGV (cx->blk_sub.cv);
709 SV *fullname = sv_2mortal (newSV (0));
710 if (isGV (gv))
711 gv_efullname3 (fullname, gv, 0);
712
713 bot = PL_stack_base + cx->blk_oldsp + 1;
714 top = cx->blk_gimme == G_ARRAY ? SP + 1
715 : cx->blk_gimme == G_SCALAR ? bot + 1
716 : bot;
717
718 av_extend (av, top - bot);
719 while (bot < top)
720 av_push (av, SvREFCNT_inc (*bot++));
721
722 PL_runops = RUNOPS_DEFAULT;
723 ENTER;
724 SAVETMPS;
725 EXTEND (SP, 3);
726 PUSHMARK (SP);
727 PUSHs (&PL_sv_no);
728 PUSHs (fullname);
729 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
730 PUTBACK;
731 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
732 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
733 SPAGAIN;
734 FREETMPS;
735 LEAVE;
736 PL_runops = runops_trace;
737 }
738
739 if (oldcop != PL_curcop)
740 {
741 oldcop = PL_curcop;
742
743 if (PL_curcop != &PL_compiling)
744 {
745 SV **cb;
746
747 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
748 {
749 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
750
751 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
752 {
753 runops_proc_t old_runops = PL_runops;
754 dSP;
755 GV *gv = CvGV (cx->blk_sub.cv);
756 SV *fullname = sv_2mortal (newSV (0));
757
758 if (isGV (gv))
759 gv_efullname3 (fullname, gv, 0);
760
761 PL_runops = RUNOPS_DEFAULT;
762 ENTER;
763 SAVETMPS;
764 EXTEND (SP, 3);
765 PUSHMARK (SP);
766 PUSHs (&PL_sv_yes);
767 PUSHs (fullname);
768 PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
769 PUTBACK;
770 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
771 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
772 SPAGAIN;
773 FREETMPS;
774 LEAVE;
775 PL_runops = runops_trace;
776 }
777
778 oldcxix = cxstack_ix;
779 }
780
781 if (cctx->flags & CC_TRACE_LINE)
782 {
783 dSP;
784
785 PL_runops = RUNOPS_DEFAULT;
786 ENTER;
787 SAVETMPS;
788 EXTEND (SP, 3);
789 PL_runops = RUNOPS_DEFAULT;
790 PUSHMARK (SP);
791 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
792 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
793 PUTBACK;
794 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
795 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
796 SPAGAIN;
797 FREETMPS;
798 LEAVE;
799 PL_runops = runops_trace;
800 }
801 }
802 }
803 }
804 }
805
806 TAINT_NOT;
807 return 0;
627} 808}
628 809
629/* inject a fake call to Coro::State::_cctx_init into the execution */ 810/* 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 */ 811/* _cctx_init should be careful, as it could be called at almost any time */
631/* during execution of a perl program */ 812/* during execution of a perl program */
632static void NOINLINE 813static void NOINLINE
633prepare_cctx (pTHX_ coro_cctx *cctx) 814prepare_cctx (pTHX_ coro_cctx *cctx)
634{ 815{
635 dSP; 816 dSP;
636 LOGOP myop; 817 LOGOP myop;
818
819 PL_top_env = &PL_start_env;
820
821 if (cctx->flags & CC_TRACE)
822 PL_runops = runops_trace;
637 823
638 Zero (&myop, 1, LOGOP); 824 Zero (&myop, 1, LOGOP);
639 myop.op_next = PL_op; 825 myop.op_next = PL_op;
640 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 826 myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
641 827
… …
658 dTHX; 844 dTHX;
659 845
660 /* coro_run is the alternative tail of transfer(), so unlock here. */ 846 /* coro_run is the alternative tail of transfer(), so unlock here. */
661 UNLOCK; 847 UNLOCK;
662 848
663 PL_top_env = &PL_start_env; 849 /* we now skip the entersub that lead to transfer() */
850 PL_op = PL_op->op_next;
664 851
665 /* inject a fake subroutine call to cctx_init */ 852 /* inject a fake subroutine call to cctx_init */
666 prepare_cctx (aTHX_ (coro_cctx *)arg); 853 prepare_cctx (aTHX_ (coro_cctx *)arg);
667 854
668 /* somebody or something will hit me for both perl_run and PL_restartop */ 855 /* somebody or something will hit me for both perl_run and PL_restartop */
… …
702# if CORO_STACKGUARD 889# if CORO_STACKGUARD
703 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); 890 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
704# endif 891# endif
705 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; 892 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
706 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; 893 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
707 cctx->mapped = 1; 894 cctx->flags |= CC_MAPPED;
708 } 895 }
709 else 896 else
710#endif 897#endif
711 { 898 {
712 cctx->ssize = coro_stacksize * (long)sizeof (long); 899 cctx->ssize = coro_stacksize * (long)sizeof (long);
… …
739#if CORO_USE_VALGRIND 926#if CORO_USE_VALGRIND
740 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); 927 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
741#endif 928#endif
742 929
743#if HAVE_MMAP 930#if HAVE_MMAP
744 if (cctx->mapped) 931 if (cctx->flags & CC_MAPPED)
745 munmap (cctx->sptr, cctx->ssize); 932 munmap (cctx->sptr, cctx->ssize);
746 else 933 else
747#endif 934#endif
748 Safefree (cctx->sptr); 935 Safefree (cctx->sptr);
749 936
750 Safefree (cctx); 937 Safefree (cctx);
751} 938}
752 939
940/* wether this cctx should be destructed */
941#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE))
942
753static coro_cctx * 943static coro_cctx *
754cctx_get (pTHX) 944cctx_get (pTHX)
755{ 945{
756 while (cctx_first) 946 while (expect_true (cctx_first))
757 { 947 {
758 coro_cctx *cctx = cctx_first; 948 coro_cctx *cctx = cctx_first;
759 cctx_first = cctx->next; 949 cctx_first = cctx->next;
760 --cctx_idle; 950 --cctx_idle;
761 951
762 if (cctx->ssize >= coro_stacksize) 952 if (expect_true (!CCTX_EXPIRED (cctx)))
763 return cctx; 953 return cctx;
764 954
765 cctx_destroy (cctx); 955 cctx_destroy (cctx);
766 } 956 }
767 957
768 PL_op = PL_op->op_next;
769 return cctx_new (); 958 return cctx_new ();
770} 959}
771 960
772static void 961static void
773cctx_put (coro_cctx *cctx) 962cctx_put (coro_cctx *cctx)
774{ 963{
775 /* free another cctx if overlimit */ 964 /* free another cctx if overlimit */
776 if (cctx_idle >= MAX_IDLE_CCTX) 965 if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
777 { 966 {
778 coro_cctx *first = cctx_first; 967 coro_cctx *first = cctx_first;
779 cctx_first = first->next; 968 cctx_first = first->next;
780 --cctx_idle; 969 --cctx_idle;
781 970
782 assert (!first->inuse);
783 cctx_destroy (first); 971 cctx_destroy (first);
784 } 972 }
785 973
786 ++cctx_idle; 974 ++cctx_idle;
787 cctx->next = cctx_first; 975 cctx->next = cctx_first;
788 cctx_first = cctx; 976 cctx_first = cctx;
789} 977}
790 978
791/** coroutine switching *****************************************************/ 979/** coroutine switching *****************************************************/
792 980
793/* never call directly, always through the coro_state_transfer global variable */ 981static void
982transfer_check (pTHX_ struct coro *prev, struct coro *next)
983{
984 if (expect_true (prev != next))
985 {
986 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
987 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
988
989 if (expect_false (next->flags & CF_RUNNING))
990 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
991
992 if (expect_false (next->flags & CF_DESTROYED))
993 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
994
995 if (expect_false (PL_lex_state != LEX_NOTPARSING))
996 croak ("Coro::State::transfer called while parsing, but this is not supported");
997 }
998}
999
1000/* always use the TRANSFER macro */
794static void NOINLINE 1001static void NOINLINE
795transfer (pTHX_ struct coro *prev, struct coro *next) 1002transfer (pTHX_ struct coro *prev, struct coro *next)
796{ 1003{
797 dSTACKLEVEL; 1004 dSTACKLEVEL;
798 1005
799 /* sometimes transfer is only called to set idle_sp */ 1006 /* sometimes transfer is only called to set idle_sp */
800 if (!next) 1007 if (expect_false (!next))
801 { 1008 {
802 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1009 ((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 */ 1010 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
804 } 1011 }
805 else if (prev != next) 1012 else if (expect_true (prev != next))
806 { 1013 {
807 coro_cctx *prev__cctx; 1014 coro_cctx *prev__cctx;
808 1015
809 if (prev->flags & CF_NEW) 1016 if (expect_false (prev->flags & CF_NEW))
810 { 1017 {
811 /* create a new empty context */ 1018 /* create a new empty context */
812 Newz (0, prev->cctx, 1, coro_cctx); 1019 Newz (0, prev->cctx, 1, coro_cctx);
813 prev->cctx->inuse = 1;
814 prev->flags &= ~CF_NEW; 1020 prev->flags &= ~CF_NEW;
815 prev->flags |= CF_RUNNING; 1021 prev->flags |= CF_RUNNING;
816 } 1022 }
817 1023
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; 1024 prev->flags &= ~CF_RUNNING;
829 next->flags |= CF_RUNNING; 1025 next->flags |= CF_RUNNING;
830 1026
831 LOCK; 1027 LOCK;
832 1028
833 if (next->flags & CF_NEW) 1029 if (expect_false (next->flags & CF_NEW))
834 { 1030 {
835 /* need to start coroutine */ 1031 /* need to start coroutine */
836 next->flags &= ~CF_NEW; 1032 next->flags &= ~CF_NEW;
837 /* first get rid of the old state */ 1033 /* first get rid of the old state */
838 save_perl (aTHX_ prev); 1034 save_perl (aTHX_ prev);
839 /* setup coroutine call */ 1035 /* setup coroutine call */
840 setup_coro (aTHX_ next); 1036 coro_setup (aTHX_ next);
841 /* need a new stack */
842 assert (!next->cctx);
843 } 1037 }
844 else 1038 else
845 { 1039 {
846 /* coroutine already started */ 1040 /* coroutine already started */
847 save_perl (aTHX_ prev); 1041 save_perl (aTHX_ prev);
… …
849 } 1043 }
850 1044
851 prev__cctx = prev->cctx; 1045 prev__cctx = prev->cctx;
852 1046
853 /* possibly "free" the cctx */ 1047 /* possibly "free" the cctx */
854 if (prev__cctx->idle_sp == STACKLEVEL) 1048 if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
855 { 1049 {
856 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ 1050 /* 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)); 1051 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
858 1052
859 prev->cctx = 0; 1053 prev->cctx = 0;
860 1054
1055 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1056 /* without this the next cctx_get might destroy the prev__cctx while still in use */
1057 if (expect_false (CCTX_EXPIRED (prev__cctx)))
1058 next->cctx = cctx_get (aTHX);
1059
861 cctx_put (prev__cctx); 1060 cctx_put (prev__cctx);
862 prev__cctx->inuse = 0;
863 } 1061 }
864 1062
1063 ++next->usecount;
1064
865 if (!next->cctx) 1065 if (expect_true (!next->cctx))
866 {
867 next->cctx = cctx_get (aTHX); 1066 next->cctx = cctx_get (aTHX);
868 assert (!next->cctx->inuse);
869 next->cctx->inuse = 1;
870 }
871 1067
872 if (prev__cctx != next->cctx) 1068 if (expect_false (prev__cctx != next->cctx))
873 { 1069 {
874 prev__cctx->top_env = PL_top_env; 1070 prev__cctx->top_env = PL_top_env;
875 PL_top_env = next->cctx->top_env; 1071 PL_top_env = next->cctx->top_env;
876 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1072 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
877 } 1073 }
… …
885{ 1081{
886 struct coro *prev, *next; 1082 struct coro *prev, *next;
887}; 1083};
888 1084
889#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) 1085#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
1086#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
890 1087
891/** high level stuff ********************************************************/ 1088/** high level stuff ********************************************************/
892 1089
893static int 1090static int
894coro_state_destroy (pTHX_ struct coro *coro) 1091coro_state_destroy (pTHX_ struct coro *coro)
… …
911 1108
912 if (coro->mainstack && coro->mainstack != main_mainstack) 1109 if (coro->mainstack && coro->mainstack != main_mainstack)
913 { 1110 {
914 struct coro temp; 1111 struct coro temp;
915 1112
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) 1113 if (coro->flags & CF_RUNNING)
922 croak ("FATAL: tried to destroy currently running coroutine"); 1114 croak ("FATAL: tried to destroy currently running coroutine");
923 1115
924 save_perl (aTHX_ &temp); 1116 save_perl (aTHX_ &temp);
925 load_perl (aTHX_ coro); 1117 load_perl (aTHX_ coro);
926 1118
927 coro_destroy_stacks (aTHX); 1119 coro_destroy (aTHX_ coro);
928 1120
929 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ 1121 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
930 1122
931 coro->mainstack = 0; 1123 coro->mainstack = 0;
932 } 1124 }
… …
977#else 1169#else
978# define MGf_DUP 0 1170# define MGf_DUP 0
979#endif 1171#endif
980}; 1172};
981 1173
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 1174static void
1006prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) 1175prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv)
1007{ 1176{
1008 ta->prev = SvSTATE (prev_sv); 1177 ta->prev = SvSTATE (prev_sv);
1009 ta->next = SvSTATE (next_sv); 1178 ta->next = SvSTATE (next_sv);
1179 TRANSFER_CHECK (*ta);
1010} 1180}
1011 1181
1012static void 1182static void
1013api_transfer (SV *prev_sv, SV *next_sv) 1183api_transfer (SV *prev_sv, SV *next_sv)
1014{ 1184{
1015 dTHX; 1185 dTHX;
1016 struct transfer_args ta; 1186 struct transfer_args ta;
1017 1187
1018 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1188 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1019 TRANSFER (ta); 1189 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} 1190}
1034 1191
1035/** Coro ********************************************************************/ 1192/** Coro ********************************************************************/
1036 1193
1037static void 1194static void
… …
1096 { 1253 {
1097 LOCK; 1254 LOCK;
1098 next_sv = coro_deq (aTHX_ PRIO_MIN); 1255 next_sv = coro_deq (aTHX_ PRIO_MIN);
1099 1256
1100 /* nothing to schedule: call the idle handler */ 1257 /* nothing to schedule: call the idle handler */
1101 if (!next_sv) 1258 if (expect_false (!next_sv))
1102 { 1259 {
1103 dSP; 1260 dSP;
1104 UNLOCK; 1261 UNLOCK;
1105 1262
1106 ENTER; 1263 ENTER;
… …
1116 } 1273 }
1117 1274
1118 ta->next = SvSTATE (next_sv); 1275 ta->next = SvSTATE (next_sv);
1119 1276
1120 /* cannot transfer to destroyed coros, skip and look for next */ 1277 /* cannot transfer to destroyed coros, skip and look for next */
1121 if (ta->next->flags & CF_DESTROYED) 1278 if (expect_false (ta->next->flags & CF_DESTROYED))
1122 { 1279 {
1123 UNLOCK; 1280 UNLOCK;
1124 SvREFCNT_dec (next_sv); 1281 SvREFCNT_dec (next_sv);
1125 /* coro_nready is already taken care of by destroy */ 1282 /* coro_nready is already taken care of by destroy */
1126 continue; 1283 continue;
… …
1131 break; 1288 break;
1132 } 1289 }
1133 1290
1134 /* free this only after the transfer */ 1291 /* free this only after the transfer */
1135 prev_sv = SvRV (coro_current); 1292 prev_sv = SvRV (coro_current);
1136 SvRV_set (coro_current, next_sv);
1137 ta->prev = SvSTATE (prev_sv); 1293 ta->prev = SvSTATE (prev_sv);
1138 1294 TRANSFER_CHECK (*ta);
1139 assert (ta->next->flags & CF_READY); 1295 assert (ta->next->flags & CF_READY);
1140 ta->next->flags &= ~CF_READY; 1296 ta->next->flags &= ~CF_READY;
1297 SvRV_set (coro_current, next_sv);
1141 1298
1142 LOCK; 1299 LOCK;
1143 free_coro_mortal (aTHX); 1300 free_coro_mortal (aTHX);
1144 coro_mortal = prev_sv; 1301 coro_mortal = prev_sv;
1145 UNLOCK; 1302 UNLOCK;
… …
1182 dTHX; 1339 dTHX;
1183 struct transfer_args ta; 1340 struct transfer_args ta;
1184 1341
1185 prepare_cede (aTHX_ &ta); 1342 prepare_cede (aTHX_ &ta);
1186 1343
1187 if (ta.prev != ta.next) 1344 if (expect_true (ta.prev != ta.next))
1188 { 1345 {
1189 TRANSFER (ta); 1346 TRANSFER (ta);
1190 return 1; 1347 return 1;
1191 } 1348 }
1192 else 1349 else
… …
1206 } 1363 }
1207 else 1364 else
1208 return 0; 1365 return 0;
1209} 1366}
1210 1367
1368static void
1369api_trace (SV *coro_sv, int flags)
1370{
1371 dTHX;
1372 struct coro *coro = SvSTATE (coro_sv);
1373
1374 if (flags & CC_TRACE)
1375 {
1376 if (!coro->cctx)
1377 coro->cctx = cctx_new ();
1378 else if (!(coro->cctx->flags & CC_TRACE))
1379 croak ("cannot enable tracing on coroutine with custom stack");
1380
1381 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1382 }
1383 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1384 {
1385 coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
1386
1387 if (coro->flags & CF_RUNNING)
1388 PL_runops = RUNOPS_DEFAULT;
1389 else
1390 coro->runops = RUNOPS_DEFAULT;
1391 }
1392}
1393
1211MODULE = Coro::State PACKAGE = Coro::State 1394MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1212 1395
1213PROTOTYPES: DISABLE 1396PROTOTYPES: DISABLE
1214 1397
1215BOOT: 1398BOOT:
1216{ 1399{
1217#ifdef USE_ITHREADS 1400#ifdef USE_ITHREADS
1218 MUTEX_INIT (&coro_mutex); 1401 MUTEX_INIT (&coro_mutex);
1219#endif 1402#endif
1220 BOOT_PAGESIZE; 1403 BOOT_PAGESIZE;
1221 1404
1405 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1406 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
1407
1222 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 1408 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1223 1409
1224 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); 1410 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1225 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); 1411 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)); 1412 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1230 newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); 1413 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1231 1414
1232 main_mainstack = PL_mainstack; 1415 main_mainstack = PL_mainstack;
1233 main_top_env = PL_top_env; 1416 main_top_env = PL_top_env;
1234 1417
1235 while (main_top_env->je_prev) 1418 while (main_top_env->je_prev)
… …
1248 struct coro *coro; 1431 struct coro *coro;
1249 HV *hv; 1432 HV *hv;
1250 int i; 1433 int i;
1251 1434
1252 Newz (0, coro, 1, struct coro); 1435 Newz (0, coro, 1, struct coro);
1253 coro->args = newAV (); 1436 coro->args = newAV ();
1254 coro->save = CORO_SAVE_DEF;
1255 coro->flags = CF_NEW; 1437 coro->flags = CF_NEW;
1256 1438
1257 if (coro_first) coro_first->prev = coro; 1439 if (coro_first) coro_first->prev = coro;
1258 coro->next = coro_first; 1440 coro->next = coro_first;
1259 coro_first = coro; 1441 coro_first = coro;
1260 1442
1261 coro->hv = hv = newHV (); 1443 coro->hv = hv = newHV ();
1262 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; 1444 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)); 1445 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1264 1446
1447 av_extend (coro->args, items - 1);
1265 for (i = 1; i < items; i++) 1448 for (i = 1; i < items; i++)
1266 av_push (coro->args, newSVsv (ST (i))); 1449 av_push (coro->args, newSVsv (ST (i)));
1267} 1450}
1268 OUTPUT: 1451 OUTPUT:
1269 RETVAL 1452 RETVAL
1270 1453
1271int 1454# these not obviously related functions are all rolled into the same xs
1272save (SV *coro, int new_save = -1) 1455# function to increase chances that they all will call transfer with the same
1273 CODE: 1456# 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 1457void
1290_set_stacklevel (...) 1458_set_stacklevel (...)
1291 ALIAS: 1459 ALIAS:
1292 Coro::State::transfer = 1 1460 Coro::State::transfer = 1
1293 Coro::schedule = 2 1461 Coro::schedule = 2
… …
1327 } 1495 }
1328 1496
1329 BARRIER; 1497 BARRIER;
1330 TRANSFER (ta); 1498 TRANSFER (ta);
1331 1499
1332 if (GIMME_V != G_VOID && ta.next != ta.prev) 1500 if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))
1333 XSRETURN_YES; 1501 XSRETURN_YES;
1334} 1502}
1335 1503
1336bool 1504bool
1337_destroy (SV *coro_sv) 1505_destroy (SV *coro_sv)
… …
1379 if (coro->hv) 1547 if (coro->hv)
1380 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 1548 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
1381} 1549}
1382 1550
1383void 1551void
1384_eval (Coro::State coro, SV *coderef) 1552call (Coro::State coro, SV *coderef)
1553 ALIAS:
1554 eval = 1
1385 CODE: 1555 CODE:
1386{ 1556{
1387 if (coro->mainstack) 1557 if (coro->mainstack)
1388 { 1558 {
1389 struct coro temp; 1559 struct coro temp;
1390 Zero (&temp, 1, struct coro); 1560 Zero (&temp, 1, struct coro);
1391 temp.save = CORO_SAVE_ALL;
1392 1561
1393 if (!(coro->flags & CF_RUNNING)) 1562 if (!(coro->flags & CF_RUNNING))
1394 { 1563 {
1395 save_perl (aTHX_ &temp); 1564 save_perl (aTHX_ &temp);
1396 load_perl (aTHX_ coro); 1565 load_perl (aTHX_ coro);
… …
1400 dSP; 1569 dSP;
1401 ENTER; 1570 ENTER;
1402 SAVETMPS; 1571 SAVETMPS;
1403 PUSHMARK (SP); 1572 PUSHMARK (SP);
1404 PUTBACK; 1573 PUTBACK;
1574 if (ix)
1575 eval_sv (coderef, 0);
1576 else
1405 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1577 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1406 SPAGAIN; 1578 SPAGAIN;
1407 FREETMPS; 1579 FREETMPS;
1408 LEAVE; 1580 LEAVE;
1409 PUTBACK; 1581 PUTBACK;
1410 } 1582 }
… …
1414 save_perl (aTHX_ coro); 1586 save_perl (aTHX_ coro);
1415 load_perl (aTHX_ &temp); 1587 load_perl (aTHX_ &temp);
1416 } 1588 }
1417 } 1589 }
1418} 1590}
1419 1591
1420SV * 1592SV *
1421is_ready (Coro::State coro) 1593is_ready (Coro::State coro)
1422 PROTOTYPE: $ 1594 PROTOTYPE: $
1423 ALIAS: 1595 ALIAS:
1424 is_ready = CF_READY 1596 is_ready = CF_READY
… …
1428 CODE: 1600 CODE:
1429 RETVAL = boolSV (coro->flags & ix); 1601 RETVAL = boolSV (coro->flags & ix);
1430 OUTPUT: 1602 OUTPUT:
1431 RETVAL 1603 RETVAL
1432 1604
1605void
1606api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1607
1608SV *
1609has_stack (Coro::State coro)
1610 PROTOTYPE: $
1611 CODE:
1612 RETVAL = boolSV (!!coro->cctx);
1613 OUTPUT:
1614 RETVAL
1615
1616int
1617is_traced (Coro::State coro)
1618 PROTOTYPE: $
1619 CODE:
1620 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1621 OUTPUT:
1622 RETVAL
1623
1433IV 1624IV
1434rss (Coro::State coro) 1625rss (Coro::State coro)
1435 PROTOTYPE: $ 1626 PROTOTYPE: $
1627 ALIAS:
1628 usecount = 1
1436 CODE: 1629 CODE:
1437 RETVAL = coro_rss (coro); 1630 switch (ix)
1631 {
1632 case 0: RETVAL = coro_rss (aTHX_ coro); break;
1633 case 1: RETVAL = coro->usecount; break;
1634 }
1438 OUTPUT: 1635 OUTPUT:
1439 RETVAL 1636 RETVAL
1440 1637
1441 1638
1442MODULE = Coro::State PACKAGE = Coro 1639MODULE = Coro::State PACKAGE = Coro
… …
1447 1644
1448 sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE); 1645 sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
1449 sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE); 1646 sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
1450 av_async_pool = get_av ("Coro::async_pool", TRUE); 1647 av_async_pool = get_av ("Coro::async_pool", TRUE);
1451 1648
1452 coro_current = get_sv ("Coro::current", FALSE); 1649 coro_current = get_sv ("Coro::current", FALSE);
1453 SvREADONLY_on (coro_current); 1650 SvREADONLY_on (coro_current);
1454 1651
1455 coro_stash = gv_stashpv ("Coro", TRUE); 1652 coro_stash = gv_stashpv ("Coro", TRUE);
1456 1653
1457 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 1654 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
… …
1466 1663
1467 { 1664 {
1468 SV *sv = perl_get_sv("Coro::API", 1); 1665 SV *sv = perl_get_sv("Coro::API", 1);
1469 1666
1470 coroapi.schedule = api_schedule; 1667 coroapi.schedule = api_schedule;
1471 coroapi.save = api_save;
1472 coroapi.cede = api_cede; 1668 coroapi.cede = api_cede;
1473 coroapi.cede_notself = api_cede_notself; 1669 coroapi.cede_notself = api_cede_notself;
1474 coroapi.ready = api_ready; 1670 coroapi.ready = api_ready;
1475 coroapi.is_ready = api_is_ready; 1671 coroapi.is_ready = api_is_ready;
1476 coroapi.nready = &coro_nready; 1672 coroapi.nready = &coro_nready;
… …
1526 RETVAL = coro_nready; 1722 RETVAL = coro_nready;
1527 OUTPUT: 1723 OUTPUT:
1528 RETVAL 1724 RETVAL
1529 1725
1530# for async_pool speedup 1726# for async_pool speedup
1531SV * 1727void
1532_pool_1 (...) 1728_pool_1 (SV *cb)
1533 CODE: 1729 CODE:
1534{ 1730{
1535 int i, len; 1731 struct coro *coro = SvSTATE (coro_current);
1536 HV *hv = (HV *)SvRV (coro_current); 1732 HV *hv = (HV *)SvRV (coro_current);
1537 AV *defav = GvAV (PL_defgv); 1733 AV *defav = GvAV (PL_defgv);
1538 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); 1734 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1539 AV *invoke_av; 1735 AV *invoke_av;
1736 int i, len;
1540 1737
1541 if (!invoke) 1738 if (!invoke)
1542 XSRETURN_EMPTY; 1739 croak ("\3terminate\2\n");
1740
1741 SvREFCNT_dec (coro->saved_deffh);
1742 coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1543 1743
1544 hv_store (hv, "desc", sizeof ("desc") - 1, 1744 hv_store (hv, "desc", sizeof ("desc") - 1,
1545 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); 1745 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1546 1746
1547 invoke_av = (AV *)SvRV (invoke); 1747 invoke_av = (AV *)SvRV (invoke);
1548 len = av_len (invoke_av); 1748 len = av_len (invoke_av);
1549 1749
1550 RETVAL = SvREFCNT_inc (AvARRAY (invoke_av)[0]); 1750 sv_setsv (cb, AvARRAY (invoke_av)[0]);
1551 1751
1552 if (len > 0) 1752 if (len > 0)
1553 { 1753 {
1554 av_clear (defav);
1555 av_extend (defav, len); 1754 av_fill (defav, len - 1);
1556 for (i = 0; i < len; ++i) 1755 for (i = 0; i < len; ++i)
1557 av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); 1756 av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
1558 } 1757 }
1559 1758
1560 SvREFCNT_dec (invoke); 1759 SvREFCNT_dec (invoke);
1561} 1760}
1562 OUTPUT:
1563 RETVAL
1564 1761
1565void 1762void
1566_pool_2 (...) 1763_pool_2 (SV *cb)
1567 CODE: 1764 CODE:
1568{ 1765{
1569 struct coro *coro = SvSTATE (coro_current); 1766 struct coro *coro = SvSTATE (coro_current);
1570 1767
1768 sv_setsv (cb, &PL_sv_undef);
1769
1770 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1771 coro->saved_deffh = 0;
1772
1571 if (coro_rss (coro) > SvIV (sv_pool_rss) 1773 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1572 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 1774 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1573 XSRETURN_YES; 1775 croak ("\3terminate\2\n");
1574 1776
1575 av_clear (GvAV (PL_defgv)); 1777 av_clear (GvAV (PL_defgv));
1576 hv_store (SvRV (coro_current), "desc", sizeof ("desc") - 1, 1778 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1577 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); 1779 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1578 coro->save = CORO_SAVE_DEF; 1780
1579 coro->prio = 0; 1781 coro->prio = 0;
1782
1783 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1784 api_trace (coro_current, 0);
1785
1580 av_push (av_async_pool, newSVsv (coro_current)); 1786 av_push (av_async_pool, newSVsv (coro_current));
1581
1582 XSRETURN_NO;
1583} 1787}
1584 1788
1585 1789
1586MODULE = Coro::State PACKAGE = Coro::AIO 1790MODULE = Coro::State PACKAGE = Coro::AIO
1587 1791

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