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Comparing Coro/Coro/State.xs (file contents):
Revision 1.172 by root, Sun Sep 30 13:15:01 2007 UTC vs.
Revision 1.202 by root, Mon Oct 8 02:50:23 2007 UTC

1#include "libcoro/coro.c" 1#include "libcoro/coro.c"
2 2
3#define PERL_NO_GET_CONTEXT 3#define PERL_NO_GET_CONTEXT
4#define PERL_EXT
4 5
5#include "EXTERN.h" 6#include "EXTERN.h"
6#include "perl.h" 7#include "perl.h"
7#include "XSUB.h" 8#include "XSUB.h"
8 9
… …
75/* 5.8.7 */ 76/* 5.8.7 */
76#ifndef SvRV_set 77#ifndef SvRV_set
77# define SvRV_set(s,v) SvRV(s) = (v) 78# define SvRV_set(s,v) SvRV(s) = (v)
78#endif 79#endif
79 80
81/* 5.8.8 */
82#ifndef GV_NOTQUAL
83# define GV_NOTQUAL 0
84#endif
85#ifndef newSV
86# define newSV(l) NEWSV(0,l)
87#endif
88
80#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 89#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
81# undef CORO_STACKGUARD 90# undef CORO_STACKGUARD
82#endif 91#endif
83 92
84#ifndef CORO_STACKGUARD 93#ifndef CORO_STACKGUARD
… …
98#define IN_DESTRUCT (PL_main_cv == Nullcv) 107#define IN_DESTRUCT (PL_main_cv == Nullcv)
99 108
100#if __GNUC__ >= 3 109#if __GNUC__ >= 3
101# define attribute(x) __attribute__(x) 110# define attribute(x) __attribute__(x)
102# define BARRIER __asm__ __volatile__ ("" : : : "memory") 111# define BARRIER __asm__ __volatile__ ("" : : : "memory")
112# define expect(expr,value) __builtin_expect ((expr),(value))
103#else 113#else
104# define attribute(x) 114# define attribute(x)
105# define BARRIER 115# define BARRIER
116# define expect(expr,value) (expr)
106#endif 117#endif
118
119#define expect_false(expr) expect ((expr) != 0, 0)
120#define expect_true(expr) expect ((expr) != 0, 1)
107 121
108#define NOINLINE attribute ((noinline)) 122#define NOINLINE attribute ((noinline))
109 123
110#include "CoroAPI.h" 124#include "CoroAPI.h"
111 125
… …
116#else 130#else
117# define LOCK (void)0 131# define LOCK (void)0
118# define UNLOCK (void)0 132# define UNLOCK (void)0
119#endif 133#endif
120 134
135#define strpair(const) const, sizeof (const) - 1
136
121/* helper storage struct for Coro::AIO */ 137/* helper storage struct for Coro::AIO */
122struct io_state 138struct io_state
123{ 139{
124 int errorno; 140 int errorno;
125 I32 laststype; 141 I32 laststype;
… …
131static struct CoroAPI coroapi; 147static struct CoroAPI coroapi;
132static AV *main_mainstack; /* used to differentiate between $main and others */ 148static AV *main_mainstack; /* used to differentiate between $main and others */
133static JMPENV *main_top_env; 149static JMPENV *main_top_env;
134static HV *coro_state_stash, *coro_stash; 150static HV *coro_state_stash, *coro_stash;
135static SV *coro_mortal; /* will be freed after next transfer */ 151static SV *coro_mortal; /* will be freed after next transfer */
152
153static GV *irsgv; /* $/ */
154static GV *stdoutgv; /* *STDOUT */
155
156static HV *hv_sig; /* %SIG */
157static SV *sv_diehook;
158static SV *sv_warnhook;
136 159
137/* async_pool helper stuff */ 160/* async_pool helper stuff */
138static SV *sv_pool_rss; 161static SV *sv_pool_rss;
139static SV *sv_pool_size; 162static SV *sv_pool_size;
140static AV *av_async_pool; 163static AV *av_async_pool;
… …
176 CF_READY = 0x0002, /* coroutine is ready */ 199 CF_READY = 0x0002, /* coroutine is ready */
177 CF_NEW = 0x0004, /* has never been switched to */ 200 CF_NEW = 0x0004, /* has never been switched to */
178 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 201 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
179}; 202};
180 203
204/* the structure where most of the perl state is stored, overlaid on the cxstack */
205typedef struct {
206 SV *defsv;
207 AV *defav;
208 SV *errsv;
209 SV *irsgv;
210#define VAR(name,type) type name;
211# include "state.h"
212#undef VAR
213} perl_slots;
214
215#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
216
181/* this is a structure representing a perl-level coroutine */ 217/* this is a structure representing a perl-level coroutine */
182struct coro { 218struct coro {
183 /* the c coroutine allocated to this perl coroutine, if any */ 219 /* the c coroutine allocated to this perl coroutine, if any */
184 coro_cctx *cctx; 220 coro_cctx *cctx;
185 221
222 /* process data */
223 AV *mainstack;
224 perl_slots *slot; /* basically the saved sp */
225
186 /* data associated with this coroutine (initial args) */ 226 /* data associated with this coroutine (initial args) */
187 AV *args; 227 AV *args;
188 int refcnt; 228 int refcnt;
189 int save; /* CORO_SAVE flags */
190 int flags; /* CF_ flags */ 229 int flags; /* CF_ flags */
191 230
192 /* optionally saved, might be zero */
193 AV *defav; /* @_ */
194 SV *defsv; /* $_ */
195 SV *errsv; /* $@ */
196 GV *deffh; /* default filehandle */
197 SV *irssv; /* $/ */
198 SV *irssv_sv; /* real $/ cache */
199
200#define VAR(name,type) type name;
201# include "state.h"
202#undef VAR
203
204 /* statistics */ 231 /* statistics */
205 int usecount; /* number of switches to this coro */ 232 int usecount; /* number of transfers to this coro */
206 233
207 /* coro process data */ 234 /* coro process data */
208 int prio; 235 int prio;
236 SV *throw;
237
238 /* async_pool */
239 SV *saved_deffh;
209 240
210 /* linked list */ 241 /* linked list */
211 struct coro *next, *prev; 242 struct coro *next, *prev;
212 HV *hv; /* the perl hash associated with this coro, if any */ 243 HV *hv; /* the perl hash associated with this coro, if any */
213}; 244};
… …
229static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; 260static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
230static int coro_nready; 261static int coro_nready;
231static struct coro *coro_first; 262static struct coro *coro_first;
232 263
233/** lowlevel stuff **********************************************************/ 264/** lowlevel stuff **********************************************************/
265
266static SV *
267coro_get_sv (const char *name, int create)
268{
269#if PERL_VERSION_ATLEAST (5,9,0)
270 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
271 get_sv (name, create);
272#endif
273 return get_sv (name, create);
274}
275
276static AV *
277coro_get_av (const char *name, int create)
278{
279#if PERL_VERSION_ATLEAST (5,9,0)
280 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
281 get_av (name, create);
282#endif
283 return get_av (name, create);
284}
285
286static HV *
287coro_get_hv (const char *name, int create)
288{
289#if PERL_VERSION_ATLEAST (5,9,0)
290 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
291 get_hv (name, create);
292#endif
293 return get_hv (name, create);
294}
234 295
235static AV * 296static AV *
236coro_clone_padlist (pTHX_ CV *cv) 297coro_clone_padlist (pTHX_ CV *cv)
237{ 298{
238 AV *padlist = CvPADLIST (cv); 299 AV *padlist = CvPADLIST (cv);
… …
311 MAGIC *mg; 372 MAGIC *mg;
312 373
313 if (SvROK (coro)) 374 if (SvROK (coro))
314 coro = SvRV (coro); 375 coro = SvRV (coro);
315 376
316 if (SvTYPE (coro) != SVt_PVHV) 377 if (expect_false (SvTYPE (coro) != SVt_PVHV))
317 croak ("Coro::State object required"); 378 croak ("Coro::State object required");
318 379
319 stash = SvSTASH (coro); 380 stash = SvSTASH (coro);
320 if (stash != coro_stash && stash != coro_state_stash) 381 if (expect_false (stash != coro_stash && stash != coro_state_stash))
321 { 382 {
322 /* very slow, but rare, check */ 383 /* very slow, but rare, check */
323 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) 384 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
324 croak ("Coro::State object required"); 385 croak ("Coro::State object required");
325 } 386 }
… …
335get_padlist (pTHX_ CV *cv) 396get_padlist (pTHX_ CV *cv)
336{ 397{
337 MAGIC *mg = CORO_MAGIC (cv); 398 MAGIC *mg = CORO_MAGIC (cv);
338 AV *av; 399 AV *av;
339 400
340 if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) 401 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
341 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 402 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
342 else 403 else
343 { 404 {
344#if CORO_PREFER_PERL_FUNCTIONS 405#if CORO_PREFER_PERL_FUNCTIONS
345 /* this is probably cleaner, but also slower? */ 406 /* this is probably cleaner, but also slower? */
… …
357put_padlist (pTHX_ CV *cv) 418put_padlist (pTHX_ CV *cv)
358{ 419{
359 MAGIC *mg = CORO_MAGIC (cv); 420 MAGIC *mg = CORO_MAGIC (cv);
360 AV *av; 421 AV *av;
361 422
362 if (!mg) 423 if (expect_false (!mg))
363 { 424 {
364 sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); 425 sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
365 mg = mg_find ((SV *)cv, PERL_MAGIC_coro); 426 mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
366 mg->mg_virtual = &vtbl_coro; 427 mg->mg_virtual = &vtbl_coro;
367 mg->mg_obj = (SV *)newAV (); 428 mg->mg_obj = (SV *)newAV ();
368 } 429 }
369 430
370 av = (AV *)mg->mg_obj; 431 av = (AV *)mg->mg_obj;
371 432
372 if (AvFILLp (av) >= AvMAX (av)) 433 if (expect_false (AvFILLp (av) >= AvMAX (av)))
373 av_extend (av, AvMAX (av) + 1); 434 av_extend (av, AvMAX (av) + 1);
374 435
375 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 436 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
376} 437}
377 438
378/** load & save, init *******************************************************/ 439/** load & save, init *******************************************************/
379 440
380#define SB do {
381#define SE } while (0)
382
383#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
384
385static void 441static void
386load_perl (pTHX_ Coro__State c) 442load_perl (pTHX_ Coro__State c)
387{ 443{
444 perl_slots *slot = c->slot;
445 c->slot = 0;
446
447 PL_mainstack = c->mainstack;
448
449 GvSV (PL_defgv) = slot->defsv;
450 GvAV (PL_defgv) = slot->defav;
451 GvSV (PL_errgv) = slot->errsv;
452 GvSV (irsgv) = slot->irsgv;
453
388#define VAR(name,type) PL_ ## name = c->name; 454 #define VAR(name,type) PL_ ## name = slot->name;
389# include "state.h" 455 # include "state.h"
390#undef VAR 456 #undef VAR
391 457
392 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 458 /*hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);*/
393 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 459 /*hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);*/
394 if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
395 if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);
396
397 if (c->irssv)
398 {
399 if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv))
400 {
401 SvREFCNT_dec (c->irssv);
402 c->irssv = 0;
403 }
404 else
405 {
406 REPLACE_SV (PL_rs, c->irssv);
407 if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
408 sv_setsv (c->irssv_sv, PL_rs);
409 }
410 }
411 460
412 { 461 {
413 dSP; 462 dSP;
463
414 CV *cv; 464 CV *cv;
415 465
416 /* now do the ugly restore mess */ 466 /* now do the ugly restore mess */
417 while ((cv = (CV *)POPs)) 467 while (expect_true (cv = (CV *)POPs))
418 { 468 {
419 put_padlist (aTHX_ cv); /* mark this padlist as available */ 469 put_padlist (aTHX_ cv); /* mark this padlist as available */
420 CvDEPTH (cv) = PTR2IV (POPs); 470 CvDEPTH (cv) = PTR2IV (POPs);
421 CvPADLIST (cv) = (AV *)POPs; 471 CvPADLIST (cv) = (AV *)POPs;
422 } 472 }
… …
441 491
442 XPUSHs (Nullsv); 492 XPUSHs (Nullsv);
443 /* this loop was inspired by pp_caller */ 493 /* this loop was inspired by pp_caller */
444 for (;;) 494 for (;;)
445 { 495 {
446 while (cxix >= 0) 496 while (expect_true (cxix >= 0))
447 { 497 {
448 PERL_CONTEXT *cx = &ccstk[cxix--]; 498 PERL_CONTEXT *cx = &ccstk[cxix--];
449 499
450 if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT) 500 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT))
451 { 501 {
452 CV *cv = cx->blk_sub.cv; 502 CV *cv = cx->blk_sub.cv;
453 503
454 if (CvDEPTH (cv)) 504 if (expect_true (CvDEPTH (cv)))
455 { 505 {
456 EXTEND (SP, 3); 506 EXTEND (SP, 3);
457 PUSHs ((SV *)CvPADLIST (cv)); 507 PUSHs ((SV *)CvPADLIST (cv));
458 PUSHs (INT2PTR (SV *, CvDEPTH (cv))); 508 PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
459 PUSHs ((SV *)cv); 509 PUSHs ((SV *)cv);
… …
462 get_padlist (aTHX_ cv); 512 get_padlist (aTHX_ cv);
463 } 513 }
464 } 514 }
465 } 515 }
466 516
467 if (top_si->si_type == PERLSI_MAIN) 517 if (expect_true (top_si->si_type == PERLSI_MAIN))
468 break; 518 break;
469 519
470 top_si = top_si->si_prev; 520 top_si = top_si->si_prev;
471 ccstk = top_si->si_cxstack; 521 ccstk = top_si->si_cxstack;
472 cxix = top_si->si_cxix; 522 cxix = top_si->si_cxix;
473 } 523 }
474 524
475 PUTBACK; 525 PUTBACK;
476 } 526 }
477 527
478 c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; 528 /* allocate some space on the context stack for our purposes */
479 c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; 529 /* we manually unroll here, as usually 2 slots is enough */
480 c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; 530 if (SLOT_COUNT >= 1) CXINC;
481 c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0; 531 if (SLOT_COUNT >= 2) CXINC;
482 c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; 532 if (SLOT_COUNT >= 3) CXINC;
533 {
534 int i;
535 for (i = 3; i < SLOT_COUNT; ++i)
536 CXINC;
537 }
538 cxstack_ix -= SLOT_COUNT; /* undo allocation */
483 539
540 c->mainstack = PL_mainstack;
541
542 {
543 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
544
545 slot->defav = GvAV (PL_defgv);
546 slot->defsv = DEFSV;
547 slot->errsv = ERRSV;
548 slot->irsgv = GvSV (irsgv);
549
484#define VAR(name,type)c->name = PL_ ## name; 550 #define VAR(name,type) slot->name = PL_ ## name;
485# include "state.h" 551 # include "state.h"
486#undef VAR 552 #undef VAR
553 }
487} 554}
488 555
489/* 556/*
490 * allocate various perl stacks. This is an exact copy 557 * allocate various perl stacks. This is an exact copy
491 * of perl.c:init_stacks, except that it uses less memory 558 * of perl.c:init_stacks, except that it uses less memory
492 * on the (sometimes correct) assumption that coroutines do 559 * on the (sometimes correct) assumption that coroutines do
493 * not usually need a lot of stackspace. 560 * not usually need a lot of stackspace.
494 */ 561 */
495#if CORO_PREFER_PERL_FUNCTIONS 562#if 1
496# define coro_init_stacks init_stacks 563# define coro_init_stacks init_stacks
497#else 564#else
498static void 565static void
499coro_init_stacks (pTHX) 566coro_init_stacks (pTHX)
500{ 567{
501 PL_curstackinfo = new_stackinfo(64, 6); 568 PL_curstackinfo = new_stackinfo(32, 8);
502 PL_curstackinfo->si_type = PERLSI_MAIN; 569 PL_curstackinfo->si_type = PERLSI_MAIN;
503 PL_curstack = PL_curstackinfo->si_stack; 570 PL_curstack = PL_curstackinfo->si_stack;
504 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 571 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
505 572
506 PL_stack_base = AvARRAY(PL_curstack); 573 PL_stack_base = AvARRAY(PL_curstack);
507 PL_stack_sp = PL_stack_base; 574 PL_stack_sp = PL_stack_base;
508 PL_stack_max = PL_stack_base + AvMAX(PL_curstack); 575 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
509 576
510 New(50,PL_tmps_stack,64,SV*); 577 New(50,PL_tmps_stack,32,SV*);
511 PL_tmps_floor = -1; 578 PL_tmps_floor = -1;
512 PL_tmps_ix = -1; 579 PL_tmps_ix = -1;
513 PL_tmps_max = 64; 580 PL_tmps_max = 32;
514 581
515 New(54,PL_markstack,16,I32); 582 New(54,PL_markstack,16,I32);
516 PL_markstack_ptr = PL_markstack; 583 PL_markstack_ptr = PL_markstack;
517 PL_markstack_max = PL_markstack + 16; 584 PL_markstack_max = PL_markstack + 16;
518 585
519#ifdef SET_MARK_OFFSET 586#ifdef SET_MARK_OFFSET
520 SET_MARK_OFFSET; 587 SET_MARK_OFFSET;
521#endif 588#endif
522 589
523 New(54,PL_scopestack,16,I32); 590 New(54,PL_scopestack,8,I32);
524 PL_scopestack_ix = 0; 591 PL_scopestack_ix = 0;
525 PL_scopestack_max = 16; 592 PL_scopestack_max = 8;
526 593
527 New(54,PL_savestack,64,ANY); 594 New(54,PL_savestack,24,ANY);
528 PL_savestack_ix = 0; 595 PL_savestack_ix = 0;
529 PL_savestack_max = 64; 596 PL_savestack_max = 24;
530 597
531#if !PERL_VERSION_ATLEAST (5,9,0) 598#if !PERL_VERSION_ATLEAST (5,9,0)
532 New(54,PL_retstack,4,OP*); 599 New(54,PL_retstack,4,OP*);
533 PL_retstack_ix = 0; 600 PL_retstack_ix = 0;
534 PL_retstack_max = 4; 601 PL_retstack_max = 4;
… …
540 * destroy the stacks, the callchain etc... 607 * destroy the stacks, the callchain etc...
541 */ 608 */
542static void 609static void
543coro_destroy_stacks (pTHX) 610coro_destroy_stacks (pTHX)
544{ 611{
545 if (!IN_DESTRUCT)
546 {
547 /* restore all saved variables and stuff */
548 LEAVE_SCOPE (0);
549 assert (PL_tmps_floor == -1);
550
551 /* free all temporaries */
552 FREETMPS;
553 assert (PL_tmps_ix == -1);
554
555 /* unwind all extra stacks */
556 POPSTACK_TO (PL_mainstack);
557
558 /* unwind main stack */
559 dounwind (-1);
560 }
561
562 while (PL_curstackinfo->si_next) 612 while (PL_curstackinfo->si_next)
563 PL_curstackinfo = PL_curstackinfo->si_next; 613 PL_curstackinfo = PL_curstackinfo->si_next;
564 614
565 while (PL_curstackinfo) 615 while (PL_curstackinfo)
566 { 616 {
… …
584} 634}
585 635
586static size_t 636static size_t
587coro_rss (pTHX_ struct coro *coro) 637coro_rss (pTHX_ struct coro *coro)
588{ 638{
589 size_t rss = sizeof (coro); 639 size_t rss = sizeof (*coro);
590 640
591 if (coro->mainstack) 641 if (coro->mainstack)
592 { 642 {
643 perl_slots tmp_slot;
644 perl_slots *slot;
645
593 if (coro->flags & CF_RUNNING) 646 if (coro->flags & CF_RUNNING)
594 { 647 {
648 slot = &tmp_slot;
649
595 #define VAR(name,type)coro->name = PL_ ## name; 650 #define VAR(name,type) slot->name = PL_ ## name;
596 # include "state.h" 651 # include "state.h"
597 #undef VAR 652 #undef VAR
598 } 653 }
654 else
655 slot = coro->slot;
599 656
600 rss += sizeof (coro->curstackinfo); 657 rss += sizeof (slot->curstackinfo);
601 rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
602 rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); 658 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
603 rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); 659 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
604 rss += coro->tmps_max * sizeof (SV *); 660 rss += slot->tmps_max * sizeof (SV *);
605 rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); 661 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
606 rss += coro->scopestack_max * sizeof (I32); 662 rss += slot->scopestack_max * sizeof (I32);
607 rss += coro->savestack_max * sizeof (ANY); 663 rss += slot->savestack_max * sizeof (ANY);
608 664
609#if !PERL_VERSION_ATLEAST (5,9,0) 665#if !PERL_VERSION_ATLEAST (5,9,0)
610 rss += coro->retstack_max * sizeof (OP *); 666 rss += slot->retstack_max * sizeof (OP *);
611#endif 667#endif
612 } 668 }
613 669
614 return rss; 670 return rss;
615} 671}
616 672
617/** coroutine stack handling ************************************************/ 673/** coroutine stack handling ************************************************/
618 674
619static void 675static void
620setup_coro (pTHX_ struct coro *coro) 676coro_setup (pTHX_ struct coro *coro)
621{ 677{
622 /* 678 /*
623 * emulate part of the perl startup here. 679 * emulate part of the perl startup here.
624 */ 680 */
625 coro_init_stacks (aTHX); 681 coro_init_stacks (aTHX);
… …
627 PL_runops = RUNOPS_DEFAULT; 683 PL_runops = RUNOPS_DEFAULT;
628 PL_curcop = &PL_compiling; 684 PL_curcop = &PL_compiling;
629 PL_in_eval = EVAL_NULL; 685 PL_in_eval = EVAL_NULL;
630 PL_comppad = 0; 686 PL_comppad = 0;
631 PL_curpm = 0; 687 PL_curpm = 0;
688 PL_curpad = 0;
632 PL_localizing = 0; 689 PL_localizing = 0;
633 PL_dirty = 0; 690 PL_dirty = 0;
634 PL_restartop = 0; 691 PL_restartop = 0;
692 PL_diehook = 0; hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
693 PL_warnhook = 0; hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
694
695 GvSV (PL_defgv) = newSV (0);
696 GvAV (PL_defgv) = coro->args; coro->args = 0;
697 GvSV (PL_errgv) = newSV (0);
698 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
699 PL_rs = newSVsv (GvSV (irsgv));
700 PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);
635 701
636 { 702 {
637 dSP; 703 dSP;
638 LOGOP myop; 704 LOGOP myop;
639 705
640 SvREFCNT_dec (GvAV (PL_defgv));
641 GvAV (PL_defgv) = coro->args; coro->args = 0;
642
643 Zero (&myop, 1, LOGOP); 706 Zero (&myop, 1, LOGOP);
644 myop.op_next = Nullop; 707 myop.op_next = Nullop;
645 myop.op_flags = OPf_WANT_VOID; 708 myop.op_flags = OPf_WANT_VOID;
646 709
647 PUSHMARK (SP); 710 PUSHMARK (SP);
648 XPUSHs (av_shift (GvAV (PL_defgv))); 711 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
649 PUTBACK; 712 PUTBACK;
650 PL_op = (OP *)&myop; 713 PL_op = (OP *)&myop;
651 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 714 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
652 SPAGAIN; 715 SPAGAIN;
653 } 716 }
654 717
655 ENTER; /* necessary e.g. for dounwind */ 718 ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */
719}
720
721static void
722coro_destroy (pTHX_ struct coro *coro)
723{
724 if (!IN_DESTRUCT)
725 {
726 /* restore all saved variables and stuff */
727 LEAVE_SCOPE (0);
728 assert (PL_tmps_floor == -1);
729
730 /* free all temporaries */
731 FREETMPS;
732 assert (PL_tmps_ix == -1);
733
734 /* unwind all extra stacks */
735 POPSTACK_TO (PL_mainstack);
736
737 /* unwind main stack */
738 dounwind (-1);
739 }
740
741 SvREFCNT_dec (GvSV (PL_defgv));
742 SvREFCNT_dec (GvAV (PL_defgv));
743 SvREFCNT_dec (GvSV (PL_errgv));
744 SvREFCNT_dec (PL_defoutgv);
745 SvREFCNT_dec (PL_rs);
746 SvREFCNT_dec (GvSV (irsgv));
747
748 SvREFCNT_dec (PL_diehook);
749 SvREFCNT_dec (PL_warnhook);
750
751 SvREFCNT_dec (coro->saved_deffh);
752 SvREFCNT_dec (coro->throw);
753
754 coro_destroy_stacks (aTHX);
656} 755}
657 756
658static void 757static void
659free_coro_mortal (pTHX) 758free_coro_mortal (pTHX)
660{ 759{
661 if (coro_mortal) 760 if (expect_true (coro_mortal))
662 { 761 {
663 SvREFCNT_dec (coro_mortal); 762 SvREFCNT_dec (coro_mortal);
664 coro_mortal = 0; 763 coro_mortal = 0;
665 } 764 }
666} 765}
… …
675 774
676 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 775 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
677 { 776 {
678 PERL_ASYNC_CHECK (); 777 PERL_ASYNC_CHECK ();
679 778
680 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) 779 if (cctx->flags & CC_TRACE_ALL)
681 { 780 {
682 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 781 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
683 SV **bot, **top;
684 AV *av = newAV (); /* return values */
685 SV **cb;
686 runops_proc_t old_runops = PL_runops;
687 dSP;
688 ENTER;
689 SAVETMPS;
690 EXTEND (SP, 3);
691 PL_runops = RUNOPS_DEFAULT;
692
693 GV *gv = CvGV (cx->blk_sub.cv);
694 SV *fullname = sv_2mortal (newSV (0));
695 if (isGV (gv))
696 gv_efullname3 (fullname, gv, 0);
697
698 bot = PL_stack_base + cx->blk_oldsp + 1;
699 top = cx->blk_gimme == G_ARRAY ? SP + 1
700 : cx->blk_gimme == G_SCALAR ? bot + 1
701 : bot;
702
703 while (bot < top)
704 av_push (av, SvREFCNT_inc (*bot++));
705
706 PUSHMARK (SP);
707 PUSHs (&PL_sv_no);
708 PUSHs (fullname);
709 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
710 PUTBACK;
711 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
712 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
713 SPAGAIN;
714
715 FREETMPS;
716 LEAVE;
717 PL_runops = old_runops;
718 }
719
720 if (oldcop != PL_curcop)
721 {
722 oldcop = PL_curcop;
723
724 if (PL_curcop != &PL_compiling)
725 { 782 {
783 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
784 SV **bot, **top;
785 AV *av = newAV (); /* return values */
726 SV **cb; 786 SV **cb;
727 runops_proc_t old_runops = PL_runops;
728 dSP; 787 dSP;
788
789 GV *gv = CvGV (cx->blk_sub.cv);
790 SV *fullname = sv_2mortal (newSV (0));
791 if (isGV (gv))
792 gv_efullname3 (fullname, gv, 0);
793
794 bot = PL_stack_base + cx->blk_oldsp + 1;
795 top = cx->blk_gimme == G_ARRAY ? SP + 1
796 : cx->blk_gimme == G_SCALAR ? bot + 1
797 : bot;
798
799 av_extend (av, top - bot);
800 while (bot < top)
801 av_push (av, SvREFCNT_inc (*bot++));
802
803 PL_runops = RUNOPS_DEFAULT;
729 ENTER; 804 ENTER;
730 SAVETMPS; 805 SAVETMPS;
731 EXTEND (SP, 3); 806 EXTEND (SP, 3);
732 PL_runops = RUNOPS_DEFAULT; 807 PUSHMARK (SP);
808 PUSHs (&PL_sv_no);
809 PUSHs (fullname);
810 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
811 PUTBACK;
812 cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);
813 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
814 SPAGAIN;
815 FREETMPS;
816 LEAVE;
817 PL_runops = runops_trace;
818 }
733 819
734 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 820 if (oldcop != PL_curcop)
821 {
822 oldcop = PL_curcop;
823
824 if (PL_curcop != &PL_compiling)
735 { 825 {
736 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 826 SV **cb;
737 827
738 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 828 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
739 { 829 {
830 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
831
832 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
833 {
834 runops_proc_t old_runops = PL_runops;
835 dSP;
740 GV *gv = CvGV (cx->blk_sub.cv); 836 GV *gv = CvGV (cx->blk_sub.cv);
741 SV *fullname = sv_2mortal (newSV (0)); 837 SV *fullname = sv_2mortal (newSV (0));
838
742 if (isGV (gv)) 839 if (isGV (gv))
743 gv_efullname3 (fullname, gv, 0); 840 gv_efullname3 (fullname, gv, 0);
744 841
842 PL_runops = RUNOPS_DEFAULT;
843 ENTER;
844 SAVETMPS;
845 EXTEND (SP, 3);
846 PUSHMARK (SP);
847 PUSHs (&PL_sv_yes);
848 PUSHs (fullname);
849 PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
850 PUTBACK;
851 cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);
852 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
853 SPAGAIN;
854 FREETMPS;
855 LEAVE;
856 PL_runops = runops_trace;
857 }
858
859 oldcxix = cxstack_ix;
860 }
861
862 if (cctx->flags & CC_TRACE_LINE)
863 {
864 dSP;
865
866 PL_runops = RUNOPS_DEFAULT;
867 ENTER;
868 SAVETMPS;
869 EXTEND (SP, 3);
870 PL_runops = RUNOPS_DEFAULT;
745 PUSHMARK (SP); 871 PUSHMARK (SP);
746 PUSHs (&PL_sv_yes); 872 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
747 PUSHs (fullname); 873 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
748 PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
749 PUTBACK; 874 PUTBACK;
750 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); 875 cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0);
751 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 876 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
752 SPAGAIN; 877 SPAGAIN;
878 FREETMPS;
879 LEAVE;
880 PL_runops = runops_trace;
753 } 881 }
754
755 oldcxix = cxstack_ix;
756 } 882 }
757
758 if (cctx->flags & CC_TRACE_LINE)
759 {
760 PUSHMARK (SP);
761 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
762 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
763 PUTBACK;
764 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
765 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
766 SPAGAIN;
767 }
768
769 FREETMPS;
770 LEAVE;
771 PL_runops = old_runops;
772 } 883 }
773 } 884 }
774 } 885 }
775 886
776 TAINT_NOT; 887 TAINT_NOT;
… …
779 890
780/* inject a fake call to Coro::State::_cctx_init into the execution */ 891/* inject a fake call to Coro::State::_cctx_init into the execution */
781/* _cctx_init should be careful, as it could be called at almost any time */ 892/* _cctx_init should be careful, as it could be called at almost any time */
782/* during execution of a perl program */ 893/* during execution of a perl program */
783static void NOINLINE 894static void NOINLINE
784prepare_cctx (pTHX_ coro_cctx *cctx) 895cctx_prepare (pTHX_ coro_cctx *cctx)
785{ 896{
786 dSP; 897 dSP;
787 LOGOP myop; 898 LOGOP myop;
788 899
789 PL_top_env = &PL_start_env; 900 PL_top_env = &PL_start_env;
… …
807 918
808/* 919/*
809 * this is a _very_ stripped down perl interpreter ;) 920 * this is a _very_ stripped down perl interpreter ;)
810 */ 921 */
811static void 922static void
812coro_run (void *arg) 923cctx_run (void *arg)
813{ 924{
814 dTHX; 925 dTHX;
815 926
816 /* coro_run is the alternative tail of transfer(), so unlock here. */ 927 /* cctx_run is the alternative tail of transfer(), so unlock here. */
817 UNLOCK; 928 UNLOCK;
818 929
819 /* we now skip the entersub that lead to transfer() */ 930 /* we now skip the entersub that lead to transfer() */
820 PL_op = PL_op->op_next; 931 PL_op = PL_op->op_next;
821 932
822 /* inject a fake subroutine call to cctx_init */ 933 /* inject a fake subroutine call to cctx_init */
823 prepare_cctx (aTHX_ (coro_cctx *)arg); 934 cctx_prepare (aTHX_ (coro_cctx *)arg);
824 935
825 /* somebody or something will hit me for both perl_run and PL_restartop */ 936 /* somebody or something will hit me for both perl_run and PL_restartop */
826 PL_restartop = PL_op; 937 PL_restartop = PL_op;
827 perl_run (PL_curinterp); 938 perl_run (PL_curinterp);
828 939
… …
847 ++cctx_count; 958 ++cctx_count;
848 959
849 Newz (0, cctx, 1, coro_cctx); 960 Newz (0, cctx, 1, coro_cctx);
850 961
851#if HAVE_MMAP 962#if HAVE_MMAP
852
853 cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; 963 cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
854 /* mmap supposedly does allocate-on-write for us */ 964 /* mmap supposedly does allocate-on-write for us */
855 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 965 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
856 966
857 if (cctx->sptr != (void *)-1) 967 if (cctx->sptr != (void *)-1)
… …
878 stack_start = cctx->sptr; 988 stack_start = cctx->sptr;
879 stack_size = cctx->ssize; 989 stack_size = cctx->ssize;
880 } 990 }
881 991
882 REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); 992 REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size);
883 coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); 993 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
884 994
885 return cctx; 995 return cctx;
886} 996}
887 997
888static void 998static void
… …
905 Safefree (cctx->sptr); 1015 Safefree (cctx->sptr);
906 1016
907 Safefree (cctx); 1017 Safefree (cctx);
908} 1018}
909 1019
1020/* wether this cctx should be destructed */
1021#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE))
1022
910static coro_cctx * 1023static coro_cctx *
911cctx_get (pTHX) 1024cctx_get (pTHX)
912{ 1025{
913 while (cctx_first) 1026 while (expect_true (cctx_first))
914 { 1027 {
915 coro_cctx *cctx = cctx_first; 1028 coro_cctx *cctx = cctx_first;
916 cctx_first = cctx->next; 1029 cctx_first = cctx->next;
917 --cctx_idle; 1030 --cctx_idle;
918 1031
919 if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE)) 1032 if (expect_true (!CCTX_EXPIRED (cctx)))
920 return cctx; 1033 return cctx;
921 1034
922 cctx_destroy (cctx); 1035 cctx_destroy (cctx);
923 } 1036 }
924 1037
… …
927 1040
928static void 1041static void
929cctx_put (coro_cctx *cctx) 1042cctx_put (coro_cctx *cctx)
930{ 1043{
931 /* free another cctx if overlimit */ 1044 /* free another cctx if overlimit */
932 if (cctx_idle >= MAX_IDLE_CCTX) 1045 if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
933 { 1046 {
934 coro_cctx *first = cctx_first; 1047 coro_cctx *first = cctx_first;
935 cctx_first = first->next; 1048 cctx_first = first->next;
936 --cctx_idle; 1049 --cctx_idle;
937 1050
… …
943 cctx_first = cctx; 1056 cctx_first = cctx;
944} 1057}
945 1058
946/** coroutine switching *****************************************************/ 1059/** coroutine switching *****************************************************/
947 1060
948static void NOINLINE 1061static void
949transfer_check (pTHX_ struct coro *prev, struct coro *next) 1062transfer_check (pTHX_ struct coro *prev, struct coro *next)
950{ 1063{
951 if (prev != next) 1064 if (expect_true (prev != next))
952 { 1065 {
953 if (!(prev->flags & (CF_RUNNING | CF_NEW))) 1066 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
954 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); 1067 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
955 1068
956 if (next->flags & CF_RUNNING) 1069 if (expect_false (next->flags & CF_RUNNING))
957 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); 1070 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
958 1071
959 if (next->flags & CF_DESTROYED) 1072 if (expect_false (next->flags & CF_DESTROYED))
960 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); 1073 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
961 1074
1075 if (
1076#if PERL_VERSION_ATLEAST (5,9,0)
1077 expect_false (PL_parser)
1078#else
962 if (PL_lex_state != LEX_NOTPARSING) 1079 expect_false (PL_lex_state != LEX_NOTPARSING)
1080#endif
1081 )
963 croak ("Coro::State::transfer called while parsing, but this is not supported"); 1082 croak ("Coro::State::transfer called while parsing, but this is not supported");
964 } 1083 }
965} 1084}
966 1085
967/* always use the TRANSFER macro */ 1086/* always use the TRANSFER macro */
… …
969transfer (pTHX_ struct coro *prev, struct coro *next) 1088transfer (pTHX_ struct coro *prev, struct coro *next)
970{ 1089{
971 dSTACKLEVEL; 1090 dSTACKLEVEL;
972 1091
973 /* sometimes transfer is only called to set idle_sp */ 1092 /* sometimes transfer is only called to set idle_sp */
974 if (!next) 1093 if (expect_false (!next))
975 { 1094 {
976 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1095 ((coro_cctx *)prev)->idle_sp = STACKLEVEL;
977 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1096 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
978 } 1097 }
979 else if (prev != next) 1098 else if (expect_true (prev != next))
980 { 1099 {
981 coro_cctx *prev__cctx; 1100 coro_cctx *prev__cctx;
982 1101
983 if (prev->flags & CF_NEW) 1102 if (expect_false (prev->flags & CF_NEW))
984 { 1103 {
985 /* create a new empty context */ 1104 /* create a new empty context */
986 Newz (0, prev->cctx, 1, coro_cctx); 1105 Newz (0, prev->cctx, 1, coro_cctx);
987 prev->flags &= ~CF_NEW; 1106 prev->flags &= ~CF_NEW;
988 prev->flags |= CF_RUNNING; 1107 prev->flags |= CF_RUNNING;
… …
991 prev->flags &= ~CF_RUNNING; 1110 prev->flags &= ~CF_RUNNING;
992 next->flags |= CF_RUNNING; 1111 next->flags |= CF_RUNNING;
993 1112
994 LOCK; 1113 LOCK;
995 1114
996 if (next->flags & CF_NEW) 1115 if (expect_false (next->flags & CF_NEW))
997 { 1116 {
998 /* need to start coroutine */ 1117 /* need to start coroutine */
999 next->flags &= ~CF_NEW; 1118 next->flags &= ~CF_NEW;
1000 /* first get rid of the old state */ 1119 /* first get rid of the old state */
1001 save_perl (aTHX_ prev); 1120 save_perl (aTHX_ prev);
1002 /* setup coroutine call */ 1121 /* setup coroutine call */
1003 setup_coro (aTHX_ next); 1122 coro_setup (aTHX_ next);
1004 } 1123 }
1005 else 1124 else
1006 { 1125 {
1007 /* coroutine already started */ 1126 /* coroutine already started */
1008 save_perl (aTHX_ prev); 1127 save_perl (aTHX_ prev);
… …
1010 } 1129 }
1011 1130
1012 prev__cctx = prev->cctx; 1131 prev__cctx = prev->cctx;
1013 1132
1014 /* possibly "free" the cctx */ 1133 /* possibly "free" the cctx */
1015 if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)) 1134 if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
1016 { 1135 {
1017 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ 1136 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1018 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); 1137 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1019 1138
1020 prev->cctx = 0; 1139 prev->cctx = 0;
1021 1140
1141 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1142 /* without this the next cctx_get might destroy the prev__cctx while still in use */
1143 if (expect_false (CCTX_EXPIRED (prev__cctx)))
1144 if (!next->cctx)
1145 next->cctx = cctx_get (aTHX);
1146
1022 cctx_put (prev__cctx); 1147 cctx_put (prev__cctx);
1023 } 1148 }
1024 1149
1025 ++next->usecount; 1150 ++next->usecount;
1026 1151
1027 if (!next->cctx) 1152 if (expect_true (!next->cctx))
1028 next->cctx = cctx_get (aTHX); 1153 next->cctx = cctx_get (aTHX);
1029 1154
1030 if (prev__cctx != next->cctx) 1155 if (expect_false (prev__cctx != next->cctx))
1031 { 1156 {
1032 prev__cctx->top_env = PL_top_env; 1157 prev__cctx->top_env = PL_top_env;
1033 PL_top_env = next->cctx->top_env; 1158 PL_top_env = next->cctx->top_env;
1034 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1159 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1035 } 1160 }
1036 1161
1037 free_coro_mortal (aTHX); 1162 free_coro_mortal (aTHX);
1038 UNLOCK; 1163 UNLOCK;
1164
1165 if (expect_false (prev->throw || next->throw))
1166 {
1167 struct coro *coro = SvSTATE (coro_current);
1168
1169 if (coro->throw)
1170 {
1171 SV *exception = coro->throw;
1172 coro->throw = 0;
1173 sv_setsv (ERRSV, exception);
1174 croak (0);
1175 }
1176 }
1039 } 1177 }
1040} 1178}
1041 1179
1042struct transfer_args 1180struct transfer_args
1043{ 1181{
… …
1070 1208
1071 if (coro->mainstack && coro->mainstack != main_mainstack) 1209 if (coro->mainstack && coro->mainstack != main_mainstack)
1072 { 1210 {
1073 struct coro temp; 1211 struct coro temp;
1074 1212
1075 assert (!(coro->flags & CF_RUNNING));
1076
1077 Zero (&temp, 1, struct coro);
1078 temp.save = CORO_SAVE_ALL;
1079
1080 if (coro->flags & CF_RUNNING) 1213 if (coro->flags & CF_RUNNING)
1081 croak ("FATAL: tried to destroy currently running coroutine"); 1214 croak ("FATAL: tried to destroy currently running coroutine");
1082 1215
1083 save_perl (aTHX_ &temp); 1216 save_perl (aTHX_ &temp);
1084 load_perl (aTHX_ coro); 1217 load_perl (aTHX_ coro);
1085 1218
1086 coro_destroy_stacks (aTHX); 1219 coro_destroy (aTHX_ coro);
1087 1220
1088 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ 1221 load_perl (aTHX_ &temp);
1089 1222
1090 coro->mainstack = 0; 1223 coro->slot = 0;
1091 } 1224 }
1092 1225
1093 cctx_destroy (coro->cctx); 1226 cctx_destroy (coro->cctx);
1094 SvREFCNT_dec (coro->args); 1227 SvREFCNT_dec (coro->args);
1095 1228
… …
1154 1287
1155 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1288 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1156 TRANSFER (ta); 1289 TRANSFER (ta);
1157} 1290}
1158 1291
1159static int
1160api_save (SV *coro_sv, int new_save)
1161{
1162 dTHX;
1163 struct coro *coro = SvSTATE (coro_sv);
1164 int old_save = coro->save;
1165
1166 if (new_save >= 0)
1167 coro->save = new_save;
1168
1169 return old_save;
1170}
1171
1172/** Coro ********************************************************************/ 1292/** Coro ********************************************************************/
1173 1293
1174static void 1294static void
1175coro_enq (pTHX_ SV *coro_sv) 1295coro_enq (pTHX_ SV *coro_sv)
1176{ 1296{
… …
1233 { 1353 {
1234 LOCK; 1354 LOCK;
1235 next_sv = coro_deq (aTHX_ PRIO_MIN); 1355 next_sv = coro_deq (aTHX_ PRIO_MIN);
1236 1356
1237 /* nothing to schedule: call the idle handler */ 1357 /* nothing to schedule: call the idle handler */
1238 if (!next_sv) 1358 if (expect_false (!next_sv))
1239 { 1359 {
1240 dSP; 1360 dSP;
1241 UNLOCK; 1361 UNLOCK;
1242 1362
1243 ENTER; 1363 ENTER;
… …
1253 } 1373 }
1254 1374
1255 ta->next = SvSTATE (next_sv); 1375 ta->next = SvSTATE (next_sv);
1256 1376
1257 /* cannot transfer to destroyed coros, skip and look for next */ 1377 /* cannot transfer to destroyed coros, skip and look for next */
1258 if (ta->next->flags & CF_DESTROYED) 1378 if (expect_false (ta->next->flags & CF_DESTROYED))
1259 { 1379 {
1260 UNLOCK; 1380 UNLOCK;
1261 SvREFCNT_dec (next_sv); 1381 SvREFCNT_dec (next_sv);
1262 /* coro_nready is already taken care of by destroy */ 1382 /* coro_nready is already taken care of by destroy */
1263 continue; 1383 continue;
… …
1319 dTHX; 1439 dTHX;
1320 struct transfer_args ta; 1440 struct transfer_args ta;
1321 1441
1322 prepare_cede (aTHX_ &ta); 1442 prepare_cede (aTHX_ &ta);
1323 1443
1324 if (ta.prev != ta.next) 1444 if (expect_true (ta.prev != ta.next))
1325 { 1445 {
1326 TRANSFER (ta); 1446 TRANSFER (ta);
1327 return 1; 1447 return 1;
1328 } 1448 }
1329 else 1449 else
… …
1343 } 1463 }
1344 else 1464 else
1345 return 0; 1465 return 0;
1346} 1466}
1347 1467
1468static void
1469api_trace (SV *coro_sv, int flags)
1470{
1471 dTHX;
1472 struct coro *coro = SvSTATE (coro_sv);
1473
1474 if (flags & CC_TRACE)
1475 {
1476 if (!coro->cctx)
1477 coro->cctx = cctx_new ();
1478 else if (!(coro->cctx->flags & CC_TRACE))
1479 croak ("cannot enable tracing on coroutine with custom stack");
1480
1481 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1482 }
1483 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1484 {
1485 coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
1486
1487 if (coro->flags & CF_RUNNING)
1488 PL_runops = RUNOPS_DEFAULT;
1489 else
1490 coro->slot->runops = RUNOPS_DEFAULT;
1491 }
1492}
1493
1348MODULE = Coro::State PACKAGE = Coro::State 1494MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1349 1495
1350PROTOTYPES: DISABLE 1496PROTOTYPES: DISABLE
1351 1497
1352BOOT: 1498BOOT:
1353{ 1499{
1354#ifdef USE_ITHREADS 1500#ifdef USE_ITHREADS
1355 MUTEX_INIT (&coro_mutex); 1501 MUTEX_INIT (&coro_mutex);
1356#endif 1502#endif
1357 BOOT_PAGESIZE; 1503 BOOT_PAGESIZE;
1504
1505 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1506 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
1507
1508 hv_sig = coro_get_hv ("SIG", TRUE);
1509 sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE);
1510 sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE);
1511
1512 if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
1513 if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
1358 1514
1359 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 1515 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1360 1516
1361 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); 1517 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1362 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); 1518 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1363 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); 1519 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1364 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); 1520 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1365 1521
1366 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1367 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1368 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1369 newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1370 newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1371 newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));
1372 newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1373
1374 main_mainstack = PL_mainstack; 1522 main_mainstack = PL_mainstack;
1375 main_top_env = PL_top_env; 1523 main_top_env = PL_top_env;
1376 1524
1377 while (main_top_env->je_prev) 1525 while (main_top_env->je_prev)
1378 main_top_env = main_top_env->je_prev; 1526 main_top_env = main_top_env->je_prev;
… …
1390 struct coro *coro; 1538 struct coro *coro;
1391 HV *hv; 1539 HV *hv;
1392 int i; 1540 int i;
1393 1541
1394 Newz (0, coro, 1, struct coro); 1542 Newz (0, coro, 1, struct coro);
1395 coro->args = newAV (); 1543 coro->args = newAV ();
1396 coro->save = CORO_SAVE_DEF;
1397 coro->flags = CF_NEW; 1544 coro->flags = CF_NEW;
1398 1545
1399 if (coro_first) coro_first->prev = coro; 1546 if (coro_first) coro_first->prev = coro;
1400 coro->next = coro_first; 1547 coro->next = coro_first;
1401 coro_first = coro; 1548 coro_first = coro;
1402 1549
1403 coro->hv = hv = newHV (); 1550 coro->hv = hv = newHV ();
1404 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; 1551 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;
1405 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 1552 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1406 1553
1554 av_extend (coro->args, items - 1);
1407 for (i = 1; i < items; i++) 1555 for (i = 1; i < items; i++)
1408 av_push (coro->args, newSVsv (ST (i))); 1556 av_push (coro->args, newSVsv (ST (i)));
1409} 1557}
1410 OUTPUT: 1558 OUTPUT:
1411 RETVAL 1559 RETVAL
1412 1560
1413int 1561# these not obviously related functions are all rolled into the same xs
1414save (SV *coro, int new_save = -1) 1562# function to increase chances that they all will call transfer with the same
1415 CODE: 1563# stack offset
1416 RETVAL = api_save (coro, new_save);
1417 OUTPUT:
1418 RETVAL
1419
1420int
1421save_also (SV *coro_sv, int save_also)
1422 CODE:
1423{
1424 struct coro *coro = SvSTATE (coro_sv);
1425 RETVAL = coro->save;
1426 coro->save |= save_also;
1427}
1428 OUTPUT:
1429 RETVAL
1430
1431void 1564void
1432_set_stacklevel (...) 1565_set_stacklevel (...)
1433 ALIAS: 1566 ALIAS:
1434 Coro::State::transfer = 1 1567 Coro::State::transfer = 1
1435 Coro::schedule = 2 1568 Coro::schedule = 2
… …
1469 } 1602 }
1470 1603
1471 BARRIER; 1604 BARRIER;
1472 TRANSFER (ta); 1605 TRANSFER (ta);
1473 1606
1474 if (GIMME_V != G_VOID && ta.next != ta.prev) 1607 if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))
1475 XSRETURN_YES; 1608 XSRETURN_YES;
1476} 1609}
1477 1610
1478bool 1611bool
1479_destroy (SV *coro_sv) 1612_destroy (SV *coro_sv)
… …
1529 CODE: 1662 CODE:
1530{ 1663{
1531 if (coro->mainstack) 1664 if (coro->mainstack)
1532 { 1665 {
1533 struct coro temp; 1666 struct coro temp;
1534 Zero (&temp, 1, struct coro);
1535 temp.save = CORO_SAVE_ALL;
1536 1667
1537 if (!(coro->flags & CF_RUNNING)) 1668 if (!(coro->flags & CF_RUNNING))
1538 { 1669 {
1539 save_perl (aTHX_ &temp); 1670 save_perl (aTHX_ &temp);
1540 load_perl (aTHX_ coro); 1671 load_perl (aTHX_ coro);
… …
1544 dSP; 1675 dSP;
1545 ENTER; 1676 ENTER;
1546 SAVETMPS; 1677 SAVETMPS;
1547 PUSHMARK (SP); 1678 PUSHMARK (SP);
1548 PUTBACK; 1679 PUTBACK;
1680
1549 if (ix) 1681 if (ix)
1550 eval_sv (coderef, 0); 1682 eval_sv (coderef, 0);
1551 else 1683 else
1552 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1684 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1685
1553 SPAGAIN; 1686 SPAGAIN;
1554 FREETMPS; 1687 FREETMPS;
1555 LEAVE; 1688 LEAVE;
1556 PUTBACK; 1689 PUTBACK;
1557 } 1690 }
… …
1576 RETVAL = boolSV (coro->flags & ix); 1709 RETVAL = boolSV (coro->flags & ix);
1577 OUTPUT: 1710 OUTPUT:
1578 RETVAL 1711 RETVAL
1579 1712
1580void 1713void
1581trace (Coro::State coro, int flags = CC_TRACE | CC_TRACE_SUB) 1714api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1582 CODE:
1583 if (flags & CC_TRACE)
1584 {
1585 if (!coro->cctx)
1586 coro->cctx = cctx_new ();
1587 else if (!(coro->cctx->flags & CC_TRACE))
1588 croak ("cannot enable tracing on coroutine with custom stack");
1589
1590 coro->cctx->flags |= flags & (CC_TRACE | CC_TRACE_ALL);
1591 }
1592 else
1593 if (coro->cctx && coro->cctx->flags & CC_TRACE)
1594 {
1595 coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
1596 coro->cctx->flags |= CC_NOREUSE;
1597
1598 if (coro->flags & CF_RUNNING)
1599 PL_runops = RUNOPS_DEFAULT;
1600 else
1601 coro->runops = RUNOPS_DEFAULT;
1602 }
1603 1715
1604SV * 1716SV *
1605has_stack (Coro::State coro) 1717has_stack (Coro::State coro)
1606 PROTOTYPE: $ 1718 PROTOTYPE: $
1607 CODE: 1719 CODE:
… …
1636 1748
1637BOOT: 1749BOOT:
1638{ 1750{
1639 int i; 1751 int i;
1640 1752
1641 sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE); 1753 sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE);
1642 sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE); 1754 sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE);
1643 av_async_pool = get_av ("Coro::async_pool", TRUE); 1755 av_async_pool = coro_get_av ("Coro::async_pool", TRUE);
1644 1756
1645 coro_current = get_sv ("Coro::current", FALSE); 1757 coro_current = coro_get_sv ("Coro::current", FALSE);
1646 SvREADONLY_on (coro_current); 1758 SvREADONLY_on (coro_current);
1647 1759
1648 coro_stash = gv_stashpv ("Coro", TRUE); 1760 coro_stash = gv_stashpv ("Coro", TRUE);
1649 1761
1650 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 1762 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1651 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 1763 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1652 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 1764 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1653 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 1765 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
… …
1656 1768
1657 for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) 1769 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1658 coro_ready[i] = newAV (); 1770 coro_ready[i] = newAV ();
1659 1771
1660 { 1772 {
1661 SV *sv = perl_get_sv("Coro::API", 1); 1773 SV *sv = perl_get_sv ("Coro::API", TRUE);
1774 perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1662 1775
1663 coroapi.schedule = api_schedule; 1776 coroapi.schedule = api_schedule;
1664 coroapi.save = api_save;
1665 coroapi.cede = api_cede; 1777 coroapi.cede = api_cede;
1666 coroapi.cede_notself = api_cede_notself; 1778 coroapi.cede_notself = api_cede_notself;
1667 coroapi.ready = api_ready; 1779 coroapi.ready = api_ready;
1668 coroapi.is_ready = api_is_ready; 1780 coroapi.is_ready = api_is_ready;
1669 coroapi.nready = &coro_nready; 1781 coroapi.nready = &coro_nready;
… …
1718 CODE: 1830 CODE:
1719 RETVAL = coro_nready; 1831 RETVAL = coro_nready;
1720 OUTPUT: 1832 OUTPUT:
1721 RETVAL 1833 RETVAL
1722 1834
1835void
1836throw (Coro::State self, SV *throw = &PL_sv_undef)
1837 PROTOTYPE: $;$
1838 CODE:
1839 SvREFCNT_dec (self->throw);
1840 self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1841
1723# for async_pool speedup 1842# for async_pool speedup
1724void 1843void
1725_pool_1 (SV *cb) 1844_pool_1 (SV *cb)
1726 CODE: 1845 CODE:
1727{ 1846{
1728 int i, len; 1847 struct coro *coro = SvSTATE (coro_current);
1729 HV *hv = (HV *)SvRV (coro_current); 1848 HV *hv = (HV *)SvRV (coro_current);
1730 AV *defav = GvAV (PL_defgv); 1849 AV *defav = GvAV (PL_defgv);
1731 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); 1850 SV *invoke = hv_delete (hv, strpair ("_invoke"), 0);
1732 AV *invoke_av; 1851 AV *invoke_av;
1852 int i, len;
1733 1853
1734 if (!invoke) 1854 if (!invoke)
1735 croak ("\3terminate\2\n"); 1855 croak ("\3async_pool terminate\2\n");
1856
1857 SvREFCNT_dec (coro->saved_deffh);
1858 coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1736 1859
1737 hv_store (hv, "desc", sizeof ("desc") - 1, 1860 hv_store (hv, "desc", sizeof ("desc") - 1,
1738 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); 1861 newSVpvn (strpair ("[async_pool]")), 0);
1739 1862
1740 invoke_av = (AV *)SvRV (invoke); 1863 invoke_av = (AV *)SvRV (invoke);
1741 len = av_len (invoke_av); 1864 len = av_len (invoke_av);
1742 1865
1743 sv_setsv (cb, AvARRAY (invoke_av)[0]); 1866 sv_setsv (cb, AvARRAY (invoke_av)[0]);
… …
1758{ 1881{
1759 struct coro *coro = SvSTATE (coro_current); 1882 struct coro *coro = SvSTATE (coro_current);
1760 1883
1761 sv_setsv (cb, &PL_sv_undef); 1884 sv_setsv (cb, &PL_sv_undef);
1762 1885
1886 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1887 coro->saved_deffh = 0;
1888
1763 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) 1889 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1764 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 1890 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1765 croak ("\3terminate\2\n"); 1891 croak ("\3async_pool terminate\2\n");
1766 1892
1767 av_clear (GvAV (PL_defgv)); 1893 av_clear (GvAV (PL_defgv));
1768 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, 1894 hv_store ((HV *)SvRV (coro_current), strpair ("desc"),
1769 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); 1895 newSVpvn (strpair ("[async_pool idle]")), 0);
1770 coro->save = CORO_SAVE_DEF; 1896
1771 coro->prio = 0; 1897 coro->prio = 0;
1898
1899 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1900 api_trace (coro_current, 0);
1901
1772 av_push (av_async_pool, newSVsv (coro_current)); 1902 av_push (av_async_pool, newSVsv (coro_current));
1773} 1903}
1774 1904
1775 1905
1776MODULE = Coro::State PACKAGE = Coro::AIO 1906MODULE = Coro::State PACKAGE = Coro::AIO

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