ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/Coro/Coro/State.xs
(Generate patch)

Comparing Coro/Coro/State.xs (file contents):
Revision 1.316 by root, Thu Nov 20 06:01:40 2008 UTC vs.
Revision 1.358 by root, Mon Jun 29 04:30:25 2009 UTC

101# define CvISXSUB_on(cv) (void)cv 101# define CvISXSUB_on(cv) (void)cv
102#endif 102#endif
103#ifndef CvISXSUB 103#ifndef CvISXSUB
104# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE) 104# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105#endif 105#endif
106#ifndef Newx
107# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
108#endif
106 109
107/* 5.8.7 */ 110/* 5.8.7 */
108#ifndef SvRV_set 111#ifndef SvRV_set
109# define SvRV_set(s,v) SvRV(s) = (v) 112# define SvRV_set(s,v) SvRV(s) = (v)
110#endif 113#endif
130#else 133#else
131# define dSTACKLEVEL volatile void *stacklevel 134# define dSTACKLEVEL volatile void *stacklevel
132# define STACKLEVEL ((void *)&stacklevel) 135# define STACKLEVEL ((void *)&stacklevel)
133#endif 136#endif
134 137
135#define IN_DESTRUCT (PL_main_cv == Nullcv) 138#define IN_DESTRUCT PL_dirty
136 139
137#if __GNUC__ >= 3 140#if __GNUC__ >= 3
138# define attribute(x) __attribute__(x) 141# define attribute(x) __attribute__(x)
139# define expect(expr,value) __builtin_expect ((expr),(value)) 142# define expect(expr,value) __builtin_expect ((expr), (value))
140# define INLINE static inline 143# define INLINE static inline
141#else 144#else
142# define attribute(x) 145# define attribute(x)
143# define expect(expr,value) (expr) 146# define expect(expr,value) (expr)
144# define INLINE static 147# define INLINE static
153#define GCoroAPI (&coroapi) /* very sneaky */ 156#define GCoroAPI (&coroapi) /* very sneaky */
154 157
155#ifdef USE_ITHREADS 158#ifdef USE_ITHREADS
156# if CORO_PTHREAD 159# if CORO_PTHREAD
157static void *coro_thx; 160static void *coro_thx;
161# endif
162#endif
163
164#ifdef __linux
165# include <time.h> /* for timespec */
166# include <syscall.h> /* for SYS_* */
167# ifdef SYS_clock_gettime
168# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
169# define CORO_CLOCK_MONOTONIC 1
170# define CORO_CLOCK_THREAD_CPUTIME_ID 3
158# endif 171# endif
159#endif 172#endif
160 173
161static double (*nvtime)(); /* so why doesn't it take void? */ 174static double (*nvtime)(); /* so why doesn't it take void? */
162 175
170static AV *main_mainstack; /* used to differentiate between $main and others */ 183static AV *main_mainstack; /* used to differentiate between $main and others */
171static JMPENV *main_top_env; 184static JMPENV *main_top_env;
172static HV *coro_state_stash, *coro_stash; 185static HV *coro_state_stash, *coro_stash;
173static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 186static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
174 187
188static AV *av_destroy; /* destruction queue */
189static SV *sv_manager; /* the manager coro */
190static SV *sv_idle; /* $Coro::idle */
191
175static GV *irsgv; /* $/ */ 192static GV *irsgv; /* $/ */
176static GV *stdoutgv; /* *STDOUT */ 193static GV *stdoutgv; /* *STDOUT */
177static SV *rv_diehook; 194static SV *rv_diehook;
178static SV *rv_warnhook; 195static SV *rv_warnhook;
179static HV *hv_sig; /* %SIG */ 196static HV *hv_sig; /* %SIG */
180 197
181/* async_pool helper stuff */ 198/* async_pool helper stuff */
182static SV *sv_pool_rss; 199static SV *sv_pool_rss;
183static SV *sv_pool_size; 200static SV *sv_pool_size;
184static SV *sv_async_pool_idle; 201static SV *sv_async_pool_idle; /* description string */
185static AV *av_async_pool; 202static AV *av_async_pool; /* idle pool */
186static SV *sv_Coro; 203static SV *sv_Coro; /* class string */
187static CV *cv_pool_handler; 204static CV *cv_pool_handler;
188static CV *cv_coro_state_new; 205static CV *cv_coro_state_new;
189 206
190/* Coro::AnyEvent */ 207/* Coro::AnyEvent */
191static SV *sv_activity; 208static SV *sv_activity;
222 int valgrind_id; 239 int valgrind_id;
223#endif 240#endif
224 unsigned char flags; 241 unsigned char flags;
225} coro_cctx; 242} coro_cctx;
226 243
244coro_cctx *cctx_current; /* the currently running cctx */
245
246/*****************************************************************************/
247
227enum { 248enum {
228 CF_RUNNING = 0x0001, /* coroutine is running */ 249 CF_RUNNING = 0x0001, /* coroutine is running */
229 CF_READY = 0x0002, /* coroutine is ready */ 250 CF_READY = 0x0002, /* coroutine is ready */
230 CF_NEW = 0x0004, /* has never been switched to */ 251 CF_NEW = 0x0004, /* has never been switched to */
231 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 252 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
253 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
232}; 254};
233 255
234/* the structure where most of the perl state is stored, overlaid on the cxstack */ 256/* the structure where most of the perl state is stored, overlaid on the cxstack */
235typedef struct 257typedef struct
236{ 258{
237 SV *defsv; 259 SV *defsv;
238 AV *defav; 260 AV *defav;
239 SV *errsv; 261 SV *errsv;
240 SV *irsgv; 262 SV *irsgv;
263 HV *hinthv;
241#define VAR(name,type) type name; 264#define VAR(name,type) type name;
242# include "state.h" 265# include "state.h"
243#undef VAR 266#undef VAR
244} perl_slots; 267} perl_slots;
245 268
247 270
248/* this is a structure representing a perl-level coroutine */ 271/* this is a structure representing a perl-level coroutine */
249struct coro { 272struct coro {
250 /* the C coroutine allocated to this perl coroutine, if any */ 273 /* the C coroutine allocated to this perl coroutine, if any */
251 coro_cctx *cctx; 274 coro_cctx *cctx;
275
276 /* ready queue */
277 struct coro *next_ready;
252 278
253 /* state data */ 279 /* state data */
254 struct CoroSLF slf_frame; /* saved slf frame */ 280 struct CoroSLF slf_frame; /* saved slf frame */
255 AV *mainstack; 281 AV *mainstack;
256 perl_slots *slot; /* basically the saved sp */ 282 perl_slots *slot; /* basically the saved sp */
273 /* async_pool */ 299 /* async_pool */
274 SV *saved_deffh; 300 SV *saved_deffh;
275 SV *invoke_cb; 301 SV *invoke_cb;
276 AV *invoke_av; 302 AV *invoke_av;
277 303
304 /* on_enter/on_leave */
305 AV *on_enter;
306 AV *on_leave;
307
278 /* linked list */ 308 /* linked list */
279 struct coro *next, *prev; 309 struct coro *next, *prev;
280}; 310};
281 311
282typedef struct coro *Coro__State; 312typedef struct coro *Coro__State;
287/* the mainr easonw e don't support windows process emulation */ 317/* the mainr easonw e don't support windows process emulation */
288static struct CoroSLF slf_frame; /* the current slf frame */ 318static struct CoroSLF slf_frame; /* the current slf frame */
289 319
290/** Coro ********************************************************************/ 320/** Coro ********************************************************************/
291 321
292#define PRIO_MAX 3 322#define CORO_PRIO_MAX 3
293#define PRIO_HIGH 1 323#define CORO_PRIO_HIGH 1
294#define PRIO_NORMAL 0 324#define CORO_PRIO_NORMAL 0
295#define PRIO_LOW -1 325#define CORO_PRIO_LOW -1
296#define PRIO_IDLE -3 326#define CORO_PRIO_IDLE -3
297#define PRIO_MIN -4 327#define CORO_PRIO_MIN -4
298 328
299/* for Coro.pm */ 329/* for Coro.pm */
300static SV *coro_current; 330static SV *coro_current;
301static SV *coro_readyhook; 331static SV *coro_readyhook;
302static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 332static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
303static CV *cv_coro_run, *cv_coro_terminate; 333static CV *cv_coro_run, *cv_coro_terminate;
304static struct coro *coro_first; 334static struct coro *coro_first;
305#define coro_nready coroapi.nready 335#define coro_nready coroapi.nready
306 336
307/** lowlevel stuff **********************************************************/ 337/** lowlevel stuff **********************************************************/
340INLINE CV * 370INLINE CV *
341coro_sv_2cv (pTHX_ SV *sv) 371coro_sv_2cv (pTHX_ SV *sv)
342{ 372{
343 HV *st; 373 HV *st;
344 GV *gvp; 374 GV *gvp;
345 return sv_2cv (sv, &st, &gvp, 0); 375 CV *cv = sv_2cv (sv, &st, &gvp, 0);
376
377 if (!cv)
378 croak ("code reference expected");
379
380 return cv;
346} 381}
382
383/*****************************************************************************/
384/* magic glue */
385
386#define CORO_MAGIC_type_cv 26
387#define CORO_MAGIC_type_state PERL_MAGIC_ext
388
389#define CORO_MAGIC_NN(sv, type) \
390 (expect_true (SvMAGIC (sv)->mg_type == type) \
391 ? SvMAGIC (sv) \
392 : mg_find (sv, type))
393
394#define CORO_MAGIC(sv, type) \
395 (expect_true (SvMAGIC (sv)) \
396 ? CORO_MAGIC_NN (sv, type) \
397 : 0)
398
399#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
400#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
401
402INLINE struct coro *
403SvSTATE_ (pTHX_ SV *coro)
404{
405 HV *stash;
406 MAGIC *mg;
407
408 if (SvROK (coro))
409 coro = SvRV (coro);
410
411 if (expect_false (SvTYPE (coro) != SVt_PVHV))
412 croak ("Coro::State object required");
413
414 stash = SvSTASH (coro);
415 if (expect_false (stash != coro_stash && stash != coro_state_stash))
416 {
417 /* very slow, but rare, check */
418 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
419 croak ("Coro::State object required");
420 }
421
422 mg = CORO_MAGIC_state (coro);
423 return (struct coro *)mg->mg_ptr;
424}
425
426#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
427
428/* faster than SvSTATE, but expects a coroutine hv */
429#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
430#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
431
432/*****************************************************************************/
433/* padlist management and caching */
347 434
348static AV * 435static AV *
349coro_clone_padlist (pTHX_ CV *cv) 436coro_derive_padlist (pTHX_ CV *cv)
350{ 437{
351 AV *padlist = CvPADLIST (cv); 438 AV *padlist = CvPADLIST (cv);
352 AV *newpadlist, *newpad; 439 AV *newpadlist, *newpad;
353 440
354 newpadlist = newAV (); 441 newpadlist = newAV ();
359 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 446 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
360#endif 447#endif
361 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 448 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
362 --AvFILLp (padlist); 449 --AvFILLp (padlist);
363 450
364 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); 451 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
365 av_store (newpadlist, 1, (SV *)newpad); 452 av_store (newpadlist, 1, (SV *)newpad);
366 453
367 return newpadlist; 454 return newpadlist;
368} 455}
369 456
370static void 457static void
371free_padlist (pTHX_ AV *padlist) 458free_padlist (pTHX_ AV *padlist)
372{ 459{
373 /* may be during global destruction */ 460 /* may be during global destruction */
374 if (SvREFCNT (padlist)) 461 if (!IN_DESTRUCT)
375 { 462 {
376 I32 i = AvFILLp (padlist); 463 I32 i = AvFILLp (padlist);
377 while (i >= 0) 464
465 while (i > 0) /* special-case index 0 */
378 { 466 {
379 SV **svp = av_fetch (padlist, i--, FALSE); 467 /* we try to be extra-careful here */
380 if (svp) 468 AV *av = (AV *)AvARRAY (padlist)[i--];
381 { 469 I32 j = AvFILLp (av);
382 SV *sv; 470
383 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) 471 while (j >= 0)
472 SvREFCNT_dec (AvARRAY (av)[j--]);
473
474 AvFILLp (av) = -1;
384 SvREFCNT_dec (sv); 475 SvREFCNT_dec (av);
385
386 SvREFCNT_dec (*svp);
387 }
388 } 476 }
389 477
478 SvREFCNT_dec (AvARRAY (padlist)[0]);
479
480 AvFILLp (padlist) = -1;
390 SvREFCNT_dec ((SV*)padlist); 481 SvREFCNT_dec ((SV*)padlist);
391 } 482 }
392} 483}
393 484
394static int 485static int
395coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 486coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
396{ 487{
397 AV *padlist; 488 AV *padlist;
398 AV *av = (AV *)mg->mg_obj; 489 AV *av = (AV *)mg->mg_obj;
490
491 /* perl manages to free our internal AV and _then_ call us */
492 if (IN_DESTRUCT)
493 return;
399 494
400 /* casting is fun. */ 495 /* casting is fun. */
401 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 496 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
402 free_padlist (aTHX_ padlist); 497 free_padlist (aTHX_ padlist);
403 498
404 SvREFCNT_dec (av); /* sv_magicext increased the refcount */ 499 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
405 500
406 return 0; 501 return 0;
407} 502}
408
409#define CORO_MAGIC_type_cv 26
410#define CORO_MAGIC_type_state PERL_MAGIC_ext
411 503
412static MGVTBL coro_cv_vtbl = { 504static MGVTBL coro_cv_vtbl = {
413 0, 0, 0, 0, 505 0, 0, 0, 0,
414 coro_cv_free 506 coro_cv_free
415}; 507};
416
417#define CORO_MAGIC_NN(sv, type) \
418 (expect_true (SvMAGIC (sv)->mg_type == type) \
419 ? SvMAGIC (sv) \
420 : mg_find (sv, type))
421
422#define CORO_MAGIC(sv, type) \
423 (expect_true (SvMAGIC (sv)) \
424 ? CORO_MAGIC_NN (sv, type) \
425 : 0)
426
427#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
428#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
429
430INLINE struct coro *
431SvSTATE_ (pTHX_ SV *coro)
432{
433 HV *stash;
434 MAGIC *mg;
435
436 if (SvROK (coro))
437 coro = SvRV (coro);
438
439 if (expect_false (SvTYPE (coro) != SVt_PVHV))
440 croak ("Coro::State object required");
441
442 stash = SvSTASH (coro);
443 if (expect_false (stash != coro_stash && stash != coro_state_stash))
444 {
445 /* very slow, but rare, check */
446 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
447 croak ("Coro::State object required");
448 }
449
450 mg = CORO_MAGIC_state (coro);
451 return (struct coro *)mg->mg_ptr;
452}
453
454#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
455
456/* faster than SvSTATE, but expects a coroutine hv */
457#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
458#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
459 508
460/* the next two functions merely cache the padlists */ 509/* the next two functions merely cache the padlists */
461static void 510static void
462get_padlist (pTHX_ CV *cv) 511get_padlist (pTHX_ CV *cv)
463{ 512{
474 CV *cp = Perl_cv_clone (aTHX_ cv); 523 CV *cp = Perl_cv_clone (aTHX_ cv);
475 CvPADLIST (cv) = CvPADLIST (cp); 524 CvPADLIST (cv) = CvPADLIST (cp);
476 CvPADLIST (cp) = 0; 525 CvPADLIST (cp) = 0;
477 SvREFCNT_dec (cp); 526 SvREFCNT_dec (cp);
478#else 527#else
479 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 528 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
480#endif 529#endif
481 } 530 }
482} 531}
483 532
484static void 533static void
491 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 540 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
492 541
493 av = (AV *)mg->mg_obj; 542 av = (AV *)mg->mg_obj;
494 543
495 if (expect_false (AvFILLp (av) >= AvMAX (av))) 544 if (expect_false (AvFILLp (av) >= AvMAX (av)))
496 av_extend (av, AvMAX (av) + 1); 545 av_extend (av, AvFILLp (av) + 1);
497 546
498 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 547 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
499} 548}
500 549
501/** load & save, init *******************************************************/ 550/** load & save, init *******************************************************/
551
552static void
553on_enterleave_call (pTHX_ SV *cb);
502 554
503static void 555static void
504load_perl (pTHX_ Coro__State c) 556load_perl (pTHX_ Coro__State c)
505{ 557{
506 perl_slots *slot = c->slot; 558 perl_slots *slot = c->slot;
507 c->slot = 0; 559 c->slot = 0;
508 560
509 PL_mainstack = c->mainstack; 561 PL_mainstack = c->mainstack;
510 562
511 GvSV (PL_defgv) = slot->defsv; 563 GvSV (PL_defgv) = slot->defsv;
512 GvAV (PL_defgv) = slot->defav; 564 GvAV (PL_defgv) = slot->defav;
513 GvSV (PL_errgv) = slot->errsv; 565 GvSV (PL_errgv) = slot->errsv;
514 GvSV (irsgv) = slot->irsgv; 566 GvSV (irsgv) = slot->irsgv;
567 GvHV (PL_hintgv) = slot->hinthv;
515 568
516 #define VAR(name,type) PL_ ## name = slot->name; 569 #define VAR(name,type) PL_ ## name = slot->name;
517 # include "state.h" 570 # include "state.h"
518 #undef VAR 571 #undef VAR
519 572
533 PUTBACK; 586 PUTBACK;
534 } 587 }
535 588
536 slf_frame = c->slf_frame; 589 slf_frame = c->slf_frame;
537 CORO_THROW = c->except; 590 CORO_THROW = c->except;
591
592 if (expect_false (c->on_enter))
593 {
594 int i;
595
596 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
597 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
598 }
538} 599}
539 600
540static void 601static void
541save_perl (pTHX_ Coro__State c) 602save_perl (pTHX_ Coro__State c)
542{ 603{
604 if (expect_false (c->on_leave))
605 {
606 int i;
607
608 for (i = AvFILLp (c->on_leave); i >= 0; --i)
609 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
610 }
611
543 c->except = CORO_THROW; 612 c->except = CORO_THROW;
544 c->slf_frame = slf_frame; 613 c->slf_frame = slf_frame;
545 614
546 { 615 {
547 dSP; 616 dSP;
560 { 629 {
561 while (expect_true (cxix >= 0)) 630 while (expect_true (cxix >= 0))
562 { 631 {
563 PERL_CONTEXT *cx = &ccstk[cxix--]; 632 PERL_CONTEXT *cx = &ccstk[cxix--];
564 633
565 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 634 if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
566 { 635 {
567 CV *cv = cx->blk_sub.cv; 636 CV *cv = cx->blk_sub.cv;
568 637
569 if (expect_true (CvDEPTH (cv))) 638 if (expect_true (CvDEPTH (cv)))
570 { 639 {
605 c->mainstack = PL_mainstack; 674 c->mainstack = PL_mainstack;
606 675
607 { 676 {
608 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 677 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
609 678
610 slot->defav = GvAV (PL_defgv); 679 slot->defav = GvAV (PL_defgv);
611 slot->defsv = DEFSV; 680 slot->defsv = DEFSV;
612 slot->errsv = ERRSV; 681 slot->errsv = ERRSV;
613 slot->irsgv = GvSV (irsgv); 682 slot->irsgv = GvSV (irsgv);
683 slot->hinthv = GvHV (PL_hintgv);
614 684
615 #define VAR(name,type) slot->name = PL_ ## name; 685 #define VAR(name,type) slot->name = PL_ ## name;
616 # include "state.h" 686 # include "state.h"
617 #undef VAR 687 #undef VAR
618 } 688 }
745#endif 815#endif
746 816
747/* 817/*
748 * This overrides the default magic get method of %SIG elements. 818 * This overrides the default magic get method of %SIG elements.
749 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 819 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
750 * and instead of tryign to save and restore the hash elements, we just provide 820 * and instead of trying to save and restore the hash elements, we just provide
751 * readback here. 821 * readback here.
752 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
753 * not expecting this to actually change the hook. This is a potential problem
754 * when a schedule happens then, but we ignore this.
755 */ 822 */
756static int 823static int
757coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 824coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
758{ 825{
759 const char *s = MgPV_nolen_const (mg); 826 const char *s = MgPV_nolen_const (mg);
812 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 879 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
813 880
814 if (svp) 881 if (svp)
815 { 882 {
816 SV *old = *svp; 883 SV *old = *svp;
817 *svp = newSVsv (sv); 884 *svp = SvOK (sv) ? newSVsv (sv) : 0;
818 SvREFCNT_dec (old); 885 SvREFCNT_dec (old);
819 return 0; 886 return 0;
820 } 887 }
821 } 888 }
822 889
832 899
833static int 900static int
834slf_check_nop (pTHX_ struct CoroSLF *frame) 901slf_check_nop (pTHX_ struct CoroSLF *frame)
835{ 902{
836 return 0; 903 return 0;
904}
905
906static int
907slf_check_repeat (pTHX_ struct CoroSLF *frame)
908{
909 return 1;
837} 910}
838 911
839static UNOP coro_setup_op; 912static UNOP coro_setup_op;
840 913
841static void NOINLINE /* noinline to keep it out of the transfer fast path */ 914static void NOINLINE /* noinline to keep it out of the transfer fast path */
848 921
849 PL_runops = RUNOPS_DEFAULT; 922 PL_runops = RUNOPS_DEFAULT;
850 PL_curcop = &PL_compiling; 923 PL_curcop = &PL_compiling;
851 PL_in_eval = EVAL_NULL; 924 PL_in_eval = EVAL_NULL;
852 PL_comppad = 0; 925 PL_comppad = 0;
926 PL_comppad_name = 0;
927 PL_comppad_name_fill = 0;
928 PL_comppad_name_floor = 0;
853 PL_curpm = 0; 929 PL_curpm = 0;
854 PL_curpad = 0; 930 PL_curpad = 0;
855 PL_localizing = 0; 931 PL_localizing = 0;
856 PL_dirty = 0; 932 PL_dirty = 0;
857 PL_restartop = 0; 933 PL_restartop = 0;
858#if PERL_VERSION_ATLEAST (5,10,0) 934#if PERL_VERSION_ATLEAST (5,10,0)
859 PL_parser = 0; 935 PL_parser = 0;
860#endif 936#endif
937 PL_hints = 0;
861 938
862 /* recreate the die/warn hooks */ 939 /* recreate the die/warn hooks */
863 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 940 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
864 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 941 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
865 942
866 GvSV (PL_defgv) = newSV (0); 943 GvSV (PL_defgv) = newSV (0);
867 GvAV (PL_defgv) = coro->args; coro->args = 0; 944 GvAV (PL_defgv) = coro->args; coro->args = 0;
868 GvSV (PL_errgv) = newSV (0); 945 GvSV (PL_errgv) = newSV (0);
869 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 946 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
947 GvHV (PL_hintgv) = 0;
870 PL_rs = newSVsv (GvSV (irsgv)); 948 PL_rs = newSVsv (GvSV (irsgv));
871 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 949 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
872 950
873 { 951 {
874 dSP; 952 dSP;
892 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 970 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
893 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 971 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
894 972
895 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 973 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
896 coro_setup_op.op_next = PL_op; 974 coro_setup_op.op_next = PL_op;
897 coro_setup_op.op_type = OP_CUSTOM; 975 coro_setup_op.op_type = OP_ENTERSUB;
898 coro_setup_op.op_ppaddr = pp_slf; 976 coro_setup_op.op_ppaddr = pp_slf;
899 /* no flags etc. required, as an init function won't be called */ 977 /* no flags etc. required, as an init function won't be called */
900 978
901 PL_op = (OP *)&coro_setup_op; 979 PL_op = (OP *)&coro_setup_op;
902 980
903 /* copy throw, in case it was set before coro_setup */ 981 /* copy throw, in case it was set before coro_setup */
904 CORO_THROW = coro->except; 982 CORO_THROW = coro->except;
905} 983}
906 984
907static void 985static void
908coro_destruct (pTHX_ struct coro *coro) 986coro_unwind_stacks (pTHX)
909{ 987{
910 if (!IN_DESTRUCT) 988 if (!IN_DESTRUCT)
911 { 989 {
912 /* restore all saved variables and stuff */ 990 /* restore all saved variables and stuff */
913 LEAVE_SCOPE (0); 991 LEAVE_SCOPE (0);
921 POPSTACK_TO (PL_mainstack); 999 POPSTACK_TO (PL_mainstack);
922 1000
923 /* unwind main stack */ 1001 /* unwind main stack */
924 dounwind (-1); 1002 dounwind (-1);
925 } 1003 }
1004}
926 1005
927 SvREFCNT_dec (GvSV (PL_defgv)); 1006static void
928 SvREFCNT_dec (GvAV (PL_defgv)); 1007coro_destruct_perl (pTHX_ struct coro *coro)
929 SvREFCNT_dec (GvSV (PL_errgv)); 1008{
930 SvREFCNT_dec (PL_defoutgv); 1009 SV *svf [9];
931 SvREFCNT_dec (PL_rs);
932 SvREFCNT_dec (GvSV (irsgv));
933 1010
934 SvREFCNT_dec (PL_diehook);
935 SvREFCNT_dec (PL_warnhook);
936 1011 {
1012 struct coro *current = SvSTATE_current;
1013
1014 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1015
1016 save_perl (aTHX_ current);
1017 load_perl (aTHX_ coro);
1018
1019 coro_unwind_stacks (aTHX);
1020 coro_destruct_stacks (aTHX);
1021
1022 // now save some sv's to be free'd later
1023 svf [0] = GvSV (PL_defgv);
1024 svf [1] = (SV *)GvAV (PL_defgv);
1025 svf [2] = GvSV (PL_errgv);
1026 svf [3] = (SV *)PL_defoutgv;
1027 svf [4] = PL_rs;
1028 svf [5] = GvSV (irsgv);
1029 svf [6] = (SV *)GvHV (PL_hintgv);
1030 svf [7] = PL_diehook;
1031 svf [8] = PL_warnhook;
1032 assert (9 == sizeof (svf) / sizeof (*svf));
1033
1034 load_perl (aTHX_ current);
1035 }
1036
1037 {
1038 int i;
1039
1040 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1041 SvREFCNT_dec (svf [i]);
1042
937 SvREFCNT_dec (coro->saved_deffh); 1043 SvREFCNT_dec (coro->saved_deffh);
938 SvREFCNT_dec (coro->rouse_cb); 1044 SvREFCNT_dec (coro->rouse_cb);
939 SvREFCNT_dec (coro->invoke_cb); 1045 SvREFCNT_dec (coro->invoke_cb);
940 SvREFCNT_dec (coro->invoke_av); 1046 SvREFCNT_dec (coro->invoke_av);
941 1047 }
942 coro_destruct_stacks (aTHX);
943} 1048}
944 1049
945INLINE void 1050INLINE void
946free_coro_mortal (pTHX) 1051free_coro_mortal (pTHX)
947{ 1052{
955static int 1060static int
956runops_trace (pTHX) 1061runops_trace (pTHX)
957{ 1062{
958 COP *oldcop = 0; 1063 COP *oldcop = 0;
959 int oldcxix = -2; 1064 int oldcxix = -2;
960 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
961 coro_cctx *cctx = coro->cctx;
962 1065
963 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 1066 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
964 { 1067 {
965 PERL_ASYNC_CHECK (); 1068 PERL_ASYNC_CHECK ();
966 1069
967 if (cctx->flags & CC_TRACE_ALL) 1070 if (cctx_current->flags & CC_TRACE_ALL)
968 { 1071 {
969 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) 1072 if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
970 { 1073 {
971 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1074 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
972 SV **bot, **top; 1075 SV **bot, **top;
973 AV *av = newAV (); /* return values */ 1076 AV *av = newAV (); /* return values */
974 SV **cb; 1077 SV **cb;
1011 1114
1012 if (PL_curcop != &PL_compiling) 1115 if (PL_curcop != &PL_compiling)
1013 { 1116 {
1014 SV **cb; 1117 SV **cb;
1015 1118
1016 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 1119 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1017 { 1120 {
1018 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1121 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1019 1122
1020 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1123 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1021 { 1124 {
1022 runops_proc_t old_runops = PL_runops;
1023 dSP; 1125 dSP;
1024 GV *gv = CvGV (cx->blk_sub.cv); 1126 GV *gv = CvGV (cx->blk_sub.cv);
1025 SV *fullname = sv_2mortal (newSV (0)); 1127 SV *fullname = sv_2mortal (newSV (0));
1026 1128
1027 if (isGV (gv)) 1129 if (isGV (gv))
1045 } 1147 }
1046 1148
1047 oldcxix = cxstack_ix; 1149 oldcxix = cxstack_ix;
1048 } 1150 }
1049 1151
1050 if (cctx->flags & CC_TRACE_LINE) 1152 if (cctx_current->flags & CC_TRACE_LINE)
1051 { 1153 {
1052 dSP; 1154 dSP;
1053 1155
1054 PL_runops = RUNOPS_DEFAULT; 1156 PL_runops = RUNOPS_DEFAULT;
1055 ENTER; 1157 ENTER;
1074 1176
1075 TAINT_NOT; 1177 TAINT_NOT;
1076 return 0; 1178 return 0;
1077} 1179}
1078 1180
1079static struct coro_cctx *cctx_ssl_cctx;
1080static struct CoroSLF cctx_ssl_frame; 1181static struct CoroSLF cctx_ssl_frame;
1081 1182
1082static void 1183static void
1083slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) 1184slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1084{ 1185{
1085 ta->prev = (struct coro *)cctx_ssl_cctx;
1086 ta->next = 0; 1186 ta->prev = 0;
1087} 1187}
1088 1188
1089static int 1189static int
1090slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) 1190slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1091{ 1191{
1094 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1194 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1095} 1195}
1096 1196
1097/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1197/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1098static void NOINLINE 1198static void NOINLINE
1099cctx_prepare (pTHX_ coro_cctx *cctx) 1199cctx_prepare (pTHX)
1100{ 1200{
1101 PL_top_env = &PL_start_env; 1201 PL_top_env = &PL_start_env;
1102 1202
1103 if (cctx->flags & CC_TRACE) 1203 if (cctx_current->flags & CC_TRACE)
1104 PL_runops = runops_trace; 1204 PL_runops = runops_trace;
1105 1205
1106 /* we already must be executing an SLF op, there is no other valid way 1206 /* we already must be executing an SLF op, there is no other valid way
1107 * that can lead to creation of a new cctx */ 1207 * that can lead to creation of a new cctx */
1108 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", 1208 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1109 slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); 1209 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1110 1210
1111 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ 1211 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1112 cctx_ssl_cctx = cctx;
1113 cctx_ssl_frame = slf_frame; 1212 cctx_ssl_frame = slf_frame;
1114 1213
1115 slf_frame.prepare = slf_prepare_set_stacklevel; 1214 slf_frame.prepare = slf_prepare_set_stacklevel;
1116 slf_frame.check = slf_check_set_stacklevel; 1215 slf_frame.check = slf_check_set_stacklevel;
1117} 1216}
1140 /* normally we would need to skip the entersub here */ 1239 /* normally we would need to skip the entersub here */
1141 /* not doing so will re-execute it, which is exactly what we want */ 1240 /* not doing so will re-execute it, which is exactly what we want */
1142 /* PL_nop = PL_nop->op_next */ 1241 /* PL_nop = PL_nop->op_next */
1143 1242
1144 /* inject a fake subroutine call to cctx_init */ 1243 /* inject a fake subroutine call to cctx_init */
1145 cctx_prepare (aTHX_ (coro_cctx *)arg); 1244 cctx_prepare (aTHX);
1146 1245
1147 /* cctx_run is the alternative tail of transfer() */ 1246 /* cctx_run is the alternative tail of transfer() */
1148 transfer_tail (aTHX); 1247 transfer_tail (aTHX);
1149 1248
1150 /* somebody or something will hit me for both perl_run and PL_restartop */ 1249 /* somebody or something will hit me for both perl_run and PL_restartop */
1158 /* 1257 /*
1159 * If perl-run returns we assume exit() was being called or the coro 1258 * If perl-run returns we assume exit() was being called or the coro
1160 * fell off the end, which seems to be the only valid (non-bug) 1259 * fell off the end, which seems to be the only valid (non-bug)
1161 * reason for perl_run to return. We try to exit by jumping to the 1260 * reason for perl_run to return. We try to exit by jumping to the
1162 * bootstrap-time "top" top_env, as we cannot restore the "main" 1261 * bootstrap-time "top" top_env, as we cannot restore the "main"
1163 * coroutine as Coro has no such concept 1262 * coroutine as Coro has no such concept.
1263 * This actually isn't valid with the pthread backend, but OSes requiring
1264 * that backend are too broken to do it in a standards-compliant way.
1164 */ 1265 */
1165 PL_top_env = main_top_env; 1266 PL_top_env = main_top_env;
1166 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 1267 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1167 } 1268 }
1168} 1269}
1245cctx_destroy (coro_cctx *cctx) 1346cctx_destroy (coro_cctx *cctx)
1246{ 1347{
1247 if (!cctx) 1348 if (!cctx)
1248 return; 1349 return;
1249 1350
1351 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
1352
1250 --cctx_count; 1353 --cctx_count;
1251 coro_destroy (&cctx->cctx); 1354 coro_destroy (&cctx->cctx);
1252 1355
1253 /* coro_transfer creates new, empty cctx's */ 1356 /* coro_transfer creates new, empty cctx's */
1254 if (cctx->sptr) 1357 if (cctx->sptr)
1317 /* TODO: throwing up here is considered harmful */ 1420 /* TODO: throwing up here is considered harmful */
1318 1421
1319 if (expect_true (prev != next)) 1422 if (expect_true (prev != next))
1320 { 1423 {
1321 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1424 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1322 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); 1425 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1323 1426
1324 if (expect_false (next->flags & CF_RUNNING))
1325 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1326
1327 if (expect_false (next->flags & CF_DESTROYED)) 1427 if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1328 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); 1428 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1329 1429
1330#if !PERL_VERSION_ATLEAST (5,10,0) 1430#if !PERL_VERSION_ATLEAST (5,10,0)
1331 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1431 if (expect_false (PL_lex_state != LEX_NOTPARSING))
1332 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1432 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1333#endif 1433#endif
1339transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1439transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1340{ 1440{
1341 dSTACKLEVEL; 1441 dSTACKLEVEL;
1342 1442
1343 /* sometimes transfer is only called to set idle_sp */ 1443 /* sometimes transfer is only called to set idle_sp */
1344 if (expect_false (!next)) 1444 if (expect_false (!prev))
1345 { 1445 {
1346 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1446 cctx_current->idle_sp = STACKLEVEL;
1347 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1447 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1348 } 1448 }
1349 else if (expect_true (prev != next)) 1449 else if (expect_true (prev != next))
1350 { 1450 {
1351 coro_cctx *prev__cctx; 1451 coro_cctx *cctx_prev;
1352 1452
1353 if (expect_false (prev->flags & CF_NEW)) 1453 if (expect_false (prev->flags & CF_NEW))
1354 { 1454 {
1355 /* create a new empty/source context */ 1455 /* create a new empty/source context */
1356 prev->cctx = cctx_new_empty ();
1357 prev->flags &= ~CF_NEW; 1456 prev->flags &= ~CF_NEW;
1358 prev->flags |= CF_RUNNING; 1457 prev->flags |= CF_RUNNING;
1359 } 1458 }
1360 1459
1361 prev->flags &= ~CF_RUNNING; 1460 prev->flags &= ~CF_RUNNING;
1372 coro_setup (aTHX_ next); 1471 coro_setup (aTHX_ next);
1373 } 1472 }
1374 else 1473 else
1375 load_perl (aTHX_ next); 1474 load_perl (aTHX_ next);
1376 1475
1377 prev__cctx = prev->cctx;
1378
1379 /* possibly untie and reuse the cctx */ 1476 /* possibly untie and reuse the cctx */
1380 if (expect_true ( 1477 if (expect_true (
1381 prev__cctx->idle_sp == STACKLEVEL 1478 cctx_current->idle_sp == STACKLEVEL
1382 && !(prev__cctx->flags & CC_TRACE) 1479 && !(cctx_current->flags & CC_TRACE)
1383 && !force_cctx 1480 && !force_cctx
1384 )) 1481 ))
1385 { 1482 {
1386 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1483 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1387 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); 1484 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1388 1485
1389 prev->cctx = 0;
1390
1391 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1486 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1392 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1487 /* without this the next cctx_get might destroy the running cctx while still in use */
1393 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1488 if (expect_false (CCTX_EXPIRED (cctx_current)))
1394 if (!next->cctx) 1489 if (expect_true (!next->cctx))
1395 next->cctx = cctx_get (aTHX); 1490 next->cctx = cctx_get (aTHX);
1396 1491
1397 cctx_put (prev__cctx); 1492 cctx_put (cctx_current);
1398 } 1493 }
1494 else
1495 prev->cctx = cctx_current;
1399 1496
1400 ++next->usecount; 1497 ++next->usecount;
1401 1498
1402 if (expect_true (!next->cctx)) 1499 cctx_prev = cctx_current;
1403 next->cctx = cctx_get (aTHX); 1500 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1404 1501
1405 if (expect_false (prev__cctx != next->cctx)) 1502 next->cctx = 0;
1503
1504 if (expect_false (cctx_prev != cctx_current))
1406 { 1505 {
1407 prev__cctx->top_env = PL_top_env; 1506 cctx_prev->top_env = PL_top_env;
1408 PL_top_env = next->cctx->top_env; 1507 PL_top_env = cctx_current->top_env;
1409 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1508 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1410 } 1509 }
1411 1510
1412 transfer_tail (aTHX); 1511 transfer_tail (aTHX);
1413 } 1512 }
1414} 1513}
1422coro_state_destroy (pTHX_ struct coro *coro) 1521coro_state_destroy (pTHX_ struct coro *coro)
1423{ 1522{
1424 if (coro->flags & CF_DESTROYED) 1523 if (coro->flags & CF_DESTROYED)
1425 return 0; 1524 return 0;
1426 1525
1427 if (coro->on_destroy) 1526 if (coro->on_destroy && !PL_dirty)
1428 coro->on_destroy (aTHX_ coro); 1527 coro->on_destroy (aTHX_ coro);
1429 1528
1430 coro->flags |= CF_DESTROYED; 1529 coro->flags |= CF_DESTROYED;
1431 1530
1432 if (coro->flags & CF_READY) 1531 if (coro->flags & CF_READY)
1436 --coro_nready; 1535 --coro_nready;
1437 } 1536 }
1438 else 1537 else
1439 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1538 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1440 1539
1441 if (coro->mainstack && coro->mainstack != main_mainstack) 1540 if (coro->mainstack
1442 { 1541 && coro->mainstack != main_mainstack
1443 struct coro temp; 1542 && coro->slot
1444 1543 && !PL_dirty)
1445 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1446
1447 save_perl (aTHX_ &temp);
1448 load_perl (aTHX_ coro);
1449
1450 coro_destruct (aTHX_ coro); 1544 coro_destruct_perl (aTHX_ coro);
1451
1452 load_perl (aTHX_ &temp);
1453
1454 coro->slot = 0;
1455 }
1456 1545
1457 cctx_destroy (coro->cctx); 1546 cctx_destroy (coro->cctx);
1458 SvREFCNT_dec (coro->startcv); 1547 SvREFCNT_dec (coro->startcv);
1459 SvREFCNT_dec (coro->args); 1548 SvREFCNT_dec (coro->args);
1460 SvREFCNT_dec (CORO_THROW); 1549 SvREFCNT_dec (CORO_THROW);
1547/** Coro ********************************************************************/ 1636/** Coro ********************************************************************/
1548 1637
1549INLINE void 1638INLINE void
1550coro_enq (pTHX_ struct coro *coro) 1639coro_enq (pTHX_ struct coro *coro)
1551{ 1640{
1552 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1641 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1553}
1554 1642
1555INLINE SV * 1643 SvREFCNT_inc_NN (coro->hv);
1644
1645 coro->next_ready = 0;
1646 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1647 ready [1] = coro;
1648}
1649
1650INLINE struct coro *
1556coro_deq (pTHX) 1651coro_deq (pTHX)
1557{ 1652{
1558 int prio; 1653 int prio;
1559 1654
1560 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1655 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1561 if (AvFILLp (coro_ready [prio]) >= 0) 1656 {
1562 return av_shift (coro_ready [prio]); 1657 struct coro **ready = coro_ready [prio];
1658
1659 if (ready [0])
1660 {
1661 struct coro *coro = ready [0];
1662 ready [0] = coro->next_ready;
1663 return coro;
1664 }
1665 }
1563 1666
1564 return 0; 1667 return 0;
1565} 1668}
1566 1669
1567static int 1670static int
1569{ 1672{
1570 struct coro *coro; 1673 struct coro *coro;
1571 SV *sv_hook; 1674 SV *sv_hook;
1572 void (*xs_hook)(void); 1675 void (*xs_hook)(void);
1573 1676
1574 if (SvROK (coro_sv))
1575 coro_sv = SvRV (coro_sv);
1576
1577 coro = SvSTATE (coro_sv); 1677 coro = SvSTATE (coro_sv);
1578 1678
1579 if (coro->flags & CF_READY) 1679 if (coro->flags & CF_READY)
1580 return 0; 1680 return 0;
1581 1681
1614 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1714 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1615} 1715}
1616 1716
1617/* expects to own a reference to next->hv */ 1717/* expects to own a reference to next->hv */
1618INLINE void 1718INLINE void
1619prepare_cede_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1719prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1620{ 1720{
1621 SV *prev_sv = SvRV (coro_current); 1721 SV *prev_sv = SvRV (coro_current);
1622 1722
1623 ta->prev = SvSTATE_hv (prev_sv); 1723 ta->prev = SvSTATE_hv (prev_sv);
1624 ta->next = next; 1724 ta->next = next;
1625 1725
1626 TRANSFER_CHECK (*ta); 1726 TRANSFER_CHECK (*ta);
1627 1727
1628 SvRV_set (coro_current, next->hv); 1728 SvRV_set (coro_current, (SV *)next->hv);
1629 1729
1630 free_coro_mortal (aTHX); 1730 free_coro_mortal (aTHX);
1631 coro_mortal = prev_sv; 1731 coro_mortal = prev_sv;
1632} 1732}
1633 1733
1634static void 1734static void
1635prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1735prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1636{ 1736{
1637 for (;;) 1737 for (;;)
1638 { 1738 {
1639 SV *next_sv = coro_deq (aTHX); 1739 struct coro *next = coro_deq (aTHX);
1640 1740
1641 if (expect_false (!next_sv)) 1741 if (expect_true (next))
1642 { 1742 {
1643 /* nothing to schedule: call the idle handler */
1644 dSP;
1645
1646 ENTER;
1647 SAVETMPS;
1648
1649 PUSHMARK (SP);
1650 PUTBACK;
1651 call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1652
1653 FREETMPS;
1654 LEAVE;
1655 }
1656 else
1657 {
1658 struct coro *next = SvSTATE_hv (next_sv);
1659
1660 /* cannot transfer to destroyed coros, skip and look for next */ 1743 /* cannot transfer to destroyed coros, skip and look for next */
1661 if (expect_false (next->flags & CF_DESTROYED)) 1744 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1662 SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ 1745 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1663 else 1746 else
1664 { 1747 {
1665 next->flags &= ~CF_READY; 1748 next->flags &= ~CF_READY;
1666 --coro_nready; 1749 --coro_nready;
1667 1750
1668 return prepare_cede_to (aTHX_ ta, next); 1751 prepare_schedule_to (aTHX_ ta, next);
1752 break;
1669 } 1753 }
1670 } 1754 }
1755 else
1756 {
1757 /* nothing to schedule: call the idle handler */
1758 if (SvROK (sv_idle)
1759 && SvOBJECT (SvRV (sv_idle)))
1760 {
1761 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1762 api_ready (aTHX_ SvRV (sv_idle));
1763 --coro_nready;
1764 }
1765 else
1766 {
1767 dSP;
1768
1769 ENTER;
1770 SAVETMPS;
1771
1772 PUSHMARK (SP);
1773 PUTBACK;
1774 call_sv (sv_idle, G_VOID | G_DISCARD);
1775
1776 FREETMPS;
1777 LEAVE;
1778 }
1779 }
1671 } 1780 }
1672} 1781}
1673 1782
1674INLINE void 1783INLINE void
1675prepare_cede (pTHX_ struct coro_transfer_args *ta) 1784prepare_cede (pTHX_ struct coro_transfer_args *ta)
1697{ 1806{
1698 struct coro_transfer_args ta; 1807 struct coro_transfer_args ta;
1699 1808
1700 prepare_schedule (aTHX_ &ta); 1809 prepare_schedule (aTHX_ &ta);
1701 TRANSFER (ta, 1); 1810 TRANSFER (ta, 1);
1811}
1812
1813static void
1814api_schedule_to (pTHX_ SV *coro_sv)
1815{
1816 struct coro_transfer_args ta;
1817 struct coro *next = SvSTATE (coro_sv);
1818
1819 SvREFCNT_inc_NN (coro_sv);
1820 prepare_schedule_to (aTHX_ &ta, next);
1702} 1821}
1703 1822
1704static int 1823static int
1705api_cede (pTHX) 1824api_cede (pTHX)
1706{ 1825{
1735static void 1854static void
1736api_trace (pTHX_ SV *coro_sv, int flags) 1855api_trace (pTHX_ SV *coro_sv, int flags)
1737{ 1856{
1738 struct coro *coro = SvSTATE (coro_sv); 1857 struct coro *coro = SvSTATE (coro_sv);
1739 1858
1859 if (coro->flags & CF_RUNNING)
1860 croak ("cannot enable tracing on a running coroutine, caught");
1861
1740 if (flags & CC_TRACE) 1862 if (flags & CC_TRACE)
1741 { 1863 {
1742 if (!coro->cctx) 1864 if (!coro->cctx)
1743 coro->cctx = cctx_new_run (); 1865 coro->cctx = cctx_new_run ();
1744 else if (!(coro->cctx->flags & CC_TRACE)) 1866 else if (!(coro->cctx->flags & CC_TRACE))
1745 croak ("cannot enable tracing on coroutine with custom stack,"); 1867 croak ("cannot enable tracing on coroutine with custom stack, caught");
1746 1868
1747 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 1869 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1748 } 1870 }
1749 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 1871 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1750 { 1872 {
1753 if (coro->flags & CF_RUNNING) 1875 if (coro->flags & CF_RUNNING)
1754 PL_runops = RUNOPS_DEFAULT; 1876 PL_runops = RUNOPS_DEFAULT;
1755 else 1877 else
1756 coro->slot->runops = RUNOPS_DEFAULT; 1878 coro->slot->runops = RUNOPS_DEFAULT;
1757 } 1879 }
1880}
1881
1882static void
1883coro_call_on_destroy (pTHX_ struct coro *coro)
1884{
1885 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
1886 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1887
1888 if (on_destroyp)
1889 {
1890 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1891
1892 while (AvFILLp (on_destroy) >= 0)
1893 {
1894 dSP; /* don't disturb outer sp */
1895 SV *cb = av_pop (on_destroy);
1896
1897 PUSHMARK (SP);
1898
1899 if (statusp)
1900 {
1901 int i;
1902 AV *status = (AV *)SvRV (*statusp);
1903 EXTEND (SP, AvFILLp (status) + 1);
1904
1905 for (i = 0; i <= AvFILLp (status); ++i)
1906 PUSHs (AvARRAY (status)[i]);
1907 }
1908
1909 PUTBACK;
1910 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
1911 }
1912 }
1913}
1914
1915static void
1916slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1917{
1918 int i;
1919 HV *hv = (HV *)SvRV (coro_current);
1920 AV *av = newAV ();
1921
1922 av_extend (av, items - 1);
1923 for (i = 0; i < items; ++i)
1924 av_push (av, SvREFCNT_inc_NN (arg [i]));
1925
1926 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
1927
1928 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1929 api_ready (aTHX_ sv_manager);
1930
1931 frame->prepare = prepare_schedule;
1932 frame->check = slf_check_repeat;
1933
1934 /* as a minor optimisation, we could unwind all stacks here */
1935 /* but that puts extra pressure on pp_slf, and is not worth much */
1936 /*coro_unwind_stacks (aTHX);*/
1758} 1937}
1759 1938
1760/*****************************************************************************/ 1939/*****************************************************************************/
1761/* async pool handler */ 1940/* async pool handler */
1762 1941
1845 SV *data = (SV *)GENSUB_ARG; 2024 SV *data = (SV *)GENSUB_ARG;
1846 2025
1847 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2026 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1848 { 2027 {
1849 /* first call, set args */ 2028 /* first call, set args */
2029 SV *coro = SvRV (data);
1850 AV *av = newAV (); 2030 AV *av = newAV ();
1851 SV *coro = SvRV (data);
1852 2031
1853 SvRV_set (data, (SV *)av); 2032 SvRV_set (data, (SV *)av);
1854 api_ready (aTHX_ coro);
1855 SvREFCNT_dec (coro);
1856 2033
1857 /* better take a full copy of the arguments */ 2034 /* better take a full copy of the arguments */
1858 while (items--) 2035 while (items--)
1859 av_store (av, items, newSVsv (ST (items))); 2036 av_store (av, items, newSVsv (ST (items)));
2037
2038 api_ready (aTHX_ coro);
2039 SvREFCNT_dec (coro);
1860 } 2040 }
1861 2041
1862 XSRETURN_EMPTY; 2042 XSRETURN_EMPTY;
1863} 2043}
1864 2044
1881 2061
1882 EXTEND (SP, AvFILLp (av) + 1); 2062 EXTEND (SP, AvFILLp (av) + 1);
1883 for (i = 0; i <= AvFILLp (av); ++i) 2063 for (i = 0; i <= AvFILLp (av); ++i)
1884 PUSHs (sv_2mortal (AvARRAY (av)[i])); 2064 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1885 2065
1886 /* we have stolen the elements, so ste length to zero and free */ 2066 /* we have stolen the elements, so set length to zero and free */
1887 AvFILLp (av) = -1; 2067 AvFILLp (av) = -1;
1888 av_undef (av); 2068 av_undef (av);
1889 2069
1890 PUTBACK; 2070 PUTBACK;
1891 } 2071 }
1995static void 2175static void
1996slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2176slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1997{ 2177{
1998 frame->prepare = prepare_schedule; 2178 frame->prepare = prepare_schedule;
1999 frame->check = slf_check_nop; 2179 frame->check = slf_check_nop;
2180}
2181
2182static void
2183slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
2184{
2185 struct coro *next = (struct coro *)slf_frame.data;
2186
2187 SvREFCNT_inc_NN (next->hv);
2188 prepare_schedule_to (aTHX_ ta, next);
2189}
2190
2191static void
2192slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2193{
2194 if (!items)
2195 croak ("Coro::schedule_to expects a coroutine argument, caught");
2196
2197 frame->data = (void *)SvSTATE (arg [0]);
2198 frame->prepare = slf_prepare_schedule_to;
2199 frame->check = slf_check_nop;
2200}
2201
2202static void
2203slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2204{
2205 api_ready (aTHX_ SvRV (coro_current));
2206
2207 slf_init_schedule_to (aTHX_ frame, cv, arg, items);
2000} 2208}
2001 2209
2002static void 2210static void
2003slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2211slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2004{ 2212{
2150 } 2358 }
2151 else 2359 else
2152 slf_argc = 0; 2360 slf_argc = 0;
2153 2361
2154 PL_op->op_ppaddr = pp_slf; 2362 PL_op->op_ppaddr = pp_slf;
2155 PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ 2363 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2156 2364
2157 PL_op = (OP *)&slf_restore; 2365 PL_op = (OP *)&slf_restore;
2366}
2367
2368/*****************************************************************************/
2369/* dynamic wind */
2370
2371static void
2372on_enterleave_call (pTHX_ SV *cb)
2373{
2374 dSP;
2375
2376 PUSHSTACK;
2377
2378 PUSHMARK (SP);
2379 PUTBACK;
2380 call_sv (cb, G_VOID | G_DISCARD);
2381 SPAGAIN;
2382
2383 POPSTACK;
2384}
2385
2386static SV *
2387coro_avp_pop_and_free (pTHX_ AV **avp)
2388{
2389 AV *av = *avp;
2390 SV *res = av_pop (av);
2391
2392 if (AvFILLp (av) < 0)
2393 {
2394 *avp = 0;
2395 SvREFCNT_dec (av);
2396 }
2397
2398 return res;
2399}
2400
2401static void
2402coro_pop_on_enter (pTHX_ void *coro)
2403{
2404 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2405 SvREFCNT_dec (cb);
2406}
2407
2408static void
2409coro_pop_on_leave (pTHX_ void *coro)
2410{
2411 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2412 on_enterleave_call (aTHX_ sv_2mortal (cb));
2158} 2413}
2159 2414
2160/*****************************************************************************/ 2415/*****************************************************************************/
2161/* PerlIO::cede */ 2416/* PerlIO::cede */
2162 2417
2236/* Coro::Semaphore & Coro::Signal */ 2491/* Coro::Semaphore & Coro::Signal */
2237 2492
2238static SV * 2493static SV *
2239coro_waitarray_new (pTHX_ int count) 2494coro_waitarray_new (pTHX_ int count)
2240{ 2495{
2241 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 2496 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2242 AV *av = newAV (); 2497 AV *av = newAV ();
2243 SV **ary; 2498 SV **ary;
2244 2499
2245 /* unfortunately, building manually saves memory */ 2500 /* unfortunately, building manually saves memory */
2246 Newx (ary, 2, SV *); 2501 Newx (ary, 2, SV *);
2247 AvALLOC (av) = ary; 2502 AvALLOC (av) = ary;
2503#if PERL_VERSION_ATLEAST (5,10,0)
2248 /*AvARRAY (av) = ary;*/ 2504 AvARRAY (av) = ary;
2505#else
2249 SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */ 2506 /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
2507 /* -DDEBUGGING flags this as a bug, despite it perfectly working */
2508 SvPVX ((SV *)av) = (char *)ary;
2509#endif
2250 AvMAX (av) = 1; 2510 AvMAX (av) = 1;
2251 AvFILLp (av) = 0; 2511 AvFILLp (av) = 0;
2252 ary [0] = newSViv (count); 2512 ary [0] = newSViv (count);
2253 2513
2254 return newRV_noinc ((SV *)av); 2514 return newRV_noinc ((SV *)av);
2385 { 2645 {
2386 /* callback form */ 2646 /* callback form */
2387 AV *av = (AV *)SvRV (arg [0]); 2647 AV *av = (AV *)SvRV (arg [0]);
2388 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 2648 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2389 2649
2390 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); 2650 av_push (av, SvREFCNT_inc_NN (cb_cv));
2391 2651
2392 if (SvIVX (AvARRAY (av)[0]) > 0) 2652 if (SvIVX (AvARRAY (av)[0]) > 0)
2393 coro_semaphore_adjust (aTHX_ av, 0); 2653 coro_semaphore_adjust (aTHX_ av, 0);
2394 2654
2395 frame->prepare = prepare_nop; 2655 frame->prepare = prepare_nop;
2419 AvARRAY (av)[0] = AvARRAY (av)[1]; 2679 AvARRAY (av)[0] = AvARRAY (av)[1];
2420 AvARRAY (av)[1] = cb; 2680 AvARRAY (av)[1] = cb;
2421 2681
2422 cb = av_shift (av); 2682 cb = av_shift (av);
2423 2683
2684 if (SvTYPE (cb) == SVt_PVCV)
2685 {
2686 dSP;
2687 PUSHMARK (SP);
2688 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2689 PUTBACK;
2690 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2691 }
2692 else
2693 {
2424 api_ready (aTHX_ cb); 2694 api_ready (aTHX_ cb);
2425 sv_setiv (cb, 0); /* signal waiter */ 2695 sv_setiv (cb, 0); /* signal waiter */
2696 }
2697
2426 SvREFCNT_dec (cb); 2698 SvREFCNT_dec (cb);
2427 2699
2428 --count; 2700 --count;
2429 } 2701 }
2430} 2702}
2439static void 2711static void
2440slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2712slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2441{ 2713{
2442 AV *av = (AV *)SvRV (arg [0]); 2714 AV *av = (AV *)SvRV (arg [0]);
2443 2715
2716 if (items >= 2)
2717 {
2718 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2719 av_push (av, SvREFCNT_inc_NN (cb_cv));
2720
2444 if (SvIVX (AvARRAY (av)[0])) 2721 if (SvIVX (AvARRAY (av)[0]))
2722 coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */
2723
2724 frame->prepare = prepare_nop;
2725 frame->check = slf_check_nop;
2726 }
2727 else if (SvIVX (AvARRAY (av)[0]))
2445 { 2728 {
2446 SvIVX (AvARRAY (av)[0]) = 0; 2729 SvIVX (AvARRAY (av)[0]) = 0;
2447 frame->prepare = prepare_nop; 2730 frame->prepare = prepare_nop;
2448 frame->check = slf_check_nop; 2731 frame->check = slf_check_nop;
2449 } 2732 }
2450 else 2733 else
2451 { 2734 {
2452 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 2735 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2453 2736
2454 av_push (av, waiter); 2737 av_push (av, waiter);
2455 2738
2456 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 2739 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2457 frame->prepare = prepare_schedule; 2740 frame->prepare = prepare_schedule;
2624 XSRETURN_EMPTY; 2907 XSRETURN_EMPTY;
2625} 2908}
2626 2909
2627/*****************************************************************************/ 2910/*****************************************************************************/
2628 2911
2912#if CORO_CLONE
2913# include "clone.c"
2914#endif
2915
2629MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 2916MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2630 2917
2631PROTOTYPES: DISABLE 2918PROTOTYPES: DISABLE
2632 2919
2633BOOT: 2920BOOT:
2637 coro_thx = PERL_GET_CONTEXT; 2924 coro_thx = PERL_GET_CONTEXT;
2638# endif 2925# endif
2639#endif 2926#endif
2640 BOOT_PAGESIZE; 2927 BOOT_PAGESIZE;
2641 2928
2929 cctx_current = cctx_new_empty ();
2930
2642 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 2931 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2643 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 2932 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2644 2933
2645 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 2934 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2646 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; 2935 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
2665 2954
2666 { 2955 {
2667 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); 2956 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2668 2957
2669 if (!PL_custom_op_names) PL_custom_op_names = newHV (); 2958 if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2670 hv_store_ent (PL_custom_op_names, slf, 2959 hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2671 newSVpv ("coro_slf", 0), 0);
2672 2960
2673 if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); 2961 if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2674 hv_store_ent (PL_custom_op_descs, slf, 2962 hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2675 newSVpv ("coro schedule like function", 0), 0);
2676 } 2963 }
2677 2964
2678 coroapi.ver = CORO_API_VERSION; 2965 coroapi.ver = CORO_API_VERSION;
2679 coroapi.rev = CORO_API_REVISION; 2966 coroapi.rev = CORO_API_REVISION;
2680 2967
2694 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); 2981 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2695 2982
2696 nvtime = INT2PTR (double (*)(), SvIV (*svp)); 2983 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2697 } 2984 }
2698 2985
2699 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 2986 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2700} 2987}
2701 2988
2702SV * 2989SV *
2703new (char *klass, ...) 2990new (char *klass, ...)
2704 ALIAS: 2991 ALIAS:
2773void 3060void
2774_exit (int code) 3061_exit (int code)
2775 PROTOTYPE: $ 3062 PROTOTYPE: $
2776 CODE: 3063 CODE:
2777 _exit (code); 3064 _exit (code);
3065
3066SV *
3067clone (Coro::State coro)
3068 CODE:
3069{
3070#if CORO_CLONE
3071 struct coro *ncoro = coro_clone (aTHX_ coro);
3072 MAGIC *mg;
3073 /* TODO: too much duplication */
3074 ncoro->hv = newHV ();
3075 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
3076 mg->mg_flags |= MGf_DUP;
3077 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
3078#else
3079 croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
3080#endif
3081}
3082 OUTPUT:
3083 RETVAL
2778 3084
2779int 3085int
2780cctx_stacksize (int new_stacksize = 0) 3086cctx_stacksize (int new_stacksize = 0)
2781 PROTOTYPE: ;$ 3087 PROTOTYPE: ;$
2782 CODE: 3088 CODE:
2832 eval = 1 3138 eval = 1
2833 CODE: 3139 CODE:
2834{ 3140{
2835 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3141 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2836 { 3142 {
2837 struct coro temp; 3143 struct coro *current = SvSTATE_current;
2838 3144
2839 if (!(coro->flags & CF_RUNNING)) 3145 if (current != coro)
2840 { 3146 {
2841 PUTBACK; 3147 PUTBACK;
2842 save_perl (aTHX_ &temp); 3148 save_perl (aTHX_ current);
2843 load_perl (aTHX_ coro); 3149 load_perl (aTHX_ coro);
3150 SPAGAIN;
2844 } 3151 }
2845 3152
2846 {
2847 dSP;
2848 ENTER;
2849 SAVETMPS;
2850 PUTBACK;
2851 PUSHSTACK; 3153 PUSHSTACK;
3154
2852 PUSHMARK (SP); 3155 PUSHMARK (SP);
3156 PUTBACK;
2853 3157
2854 if (ix) 3158 if (ix)
2855 eval_sv (coderef, 0); 3159 eval_sv (coderef, 0);
2856 else 3160 else
2857 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3161 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2858 3162
2859 POPSTACK; 3163 POPSTACK;
2860 SPAGAIN; 3164 SPAGAIN;
2861 FREETMPS;
2862 LEAVE;
2863 PUTBACK;
2864 }
2865 3165
2866 if (!(coro->flags & CF_RUNNING)) 3166 if (current != coro)
2867 { 3167 {
3168 PUTBACK;
2868 save_perl (aTHX_ coro); 3169 save_perl (aTHX_ coro);
2869 load_perl (aTHX_ &temp); 3170 load_perl (aTHX_ current);
2870 SPAGAIN; 3171 SPAGAIN;
2871 } 3172 }
2872 } 3173 }
2873} 3174}
2874 3175
2878 ALIAS: 3179 ALIAS:
2879 is_ready = CF_READY 3180 is_ready = CF_READY
2880 is_running = CF_RUNNING 3181 is_running = CF_RUNNING
2881 is_new = CF_NEW 3182 is_new = CF_NEW
2882 is_destroyed = CF_DESTROYED 3183 is_destroyed = CF_DESTROYED
3184 is_suspended = CF_SUSPENDED
2883 CODE: 3185 CODE:
2884 RETVAL = boolSV (coro->flags & ix); 3186 RETVAL = boolSV (coro->flags & ix);
2885 OUTPUT: 3187 OUTPUT:
2886 RETVAL 3188 RETVAL
2887 3189
2891 CODE: 3193 CODE:
2892{ 3194{
2893 struct coro *current = SvSTATE_current; 3195 struct coro *current = SvSTATE_current;
2894 SV **throwp = self == current ? &CORO_THROW : &self->except; 3196 SV **throwp = self == current ? &CORO_THROW : &self->except;
2895 SvREFCNT_dec (*throwp); 3197 SvREFCNT_dec (*throwp);
3198 SvGETMAGIC (throw);
2896 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3199 *throwp = SvOK (throw) ? newSVsv (throw) : 0;
2897} 3200}
2898 3201
2899void 3202void
2900api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3203api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
2903 3206
2904SV * 3207SV *
2905has_cctx (Coro::State coro) 3208has_cctx (Coro::State coro)
2906 PROTOTYPE: $ 3209 PROTOTYPE: $
2907 CODE: 3210 CODE:
2908 RETVAL = boolSV (!!coro->cctx); 3211 /* maybe manage the running flag differently */
3212 RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2909 OUTPUT: 3213 OUTPUT:
2910 RETVAL 3214 RETVAL
2911 3215
2912int 3216int
2913is_traced (Coro::State coro) 3217is_traced (Coro::State coro)
2933 3237
2934void 3238void
2935force_cctx () 3239force_cctx ()
2936 PROTOTYPE: 3240 PROTOTYPE:
2937 CODE: 3241 CODE:
2938 SvSTATE_current->cctx->idle_sp = 0; 3242 cctx_current->idle_sp = 0;
2939 3243
2940void 3244void
2941swap_defsv (Coro::State self) 3245swap_defsv (Coro::State self)
2942 PROTOTYPE: $ 3246 PROTOTYPE: $
2943 ALIAS: 3247 ALIAS:
2951 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3255 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2952 3256
2953 SV *tmp = *src; *src = *dst; *dst = tmp; 3257 SV *tmp = *src; *src = *dst; *dst = tmp;
2954 } 3258 }
2955 3259
3260void
3261cancel (Coro::State self)
3262 CODE:
3263 coro_state_destroy (aTHX_ self);
3264 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
3265
2956 3266
2957MODULE = Coro::State PACKAGE = Coro 3267MODULE = Coro::State PACKAGE = Coro
2958 3268
2959BOOT: 3269BOOT:
2960{ 3270{
2961 int i;
2962
2963 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2964 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3271 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2965 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3272 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2966 cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); 3273 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
2967 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD); 3274 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2968 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3275 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3276 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3277 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3278 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3279 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
2969 3280
2970 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3281 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
2971 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3282 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
2972 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3283 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
2973 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3284 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2974 3285
2975 coro_stash = gv_stashpv ("Coro", TRUE); 3286 coro_stash = gv_stashpv ("Coro", TRUE);
2976 3287
2977 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3288 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
2978 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3289 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
2979 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3290 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
2980 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3291 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
2981 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3292 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
2982 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3293 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
2983
2984 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
2985 coro_ready[i] = newAV ();
2986 3294
2987 { 3295 {
2988 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3296 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2989 3297
2990 coroapi.schedule = api_schedule; 3298 coroapi.schedule = api_schedule;
3299 coroapi.schedule_to = api_schedule_to;
2991 coroapi.cede = api_cede; 3300 coroapi.cede = api_cede;
2992 coroapi.cede_notself = api_cede_notself; 3301 coroapi.cede_notself = api_cede_notself;
2993 coroapi.ready = api_ready; 3302 coroapi.ready = api_ready;
2994 coroapi.is_ready = api_is_ready; 3303 coroapi.is_ready = api_is_ready;
2995 coroapi.nready = coro_nready; 3304 coroapi.nready = coro_nready;
3000 SvREADONLY_on (sv); 3309 SvREADONLY_on (sv);
3001 } 3310 }
3002} 3311}
3003 3312
3004void 3313void
3314terminate (...)
3315 CODE:
3316 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3317
3318void
3005schedule (...) 3319schedule (...)
3006 CODE: 3320 CODE:
3007 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3321 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3322
3323void
3324schedule_to (...)
3325 CODE:
3326 CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
3327
3328void
3329cede_to (...)
3330 CODE:
3331 CORO_EXECUTE_SLF_XS (slf_init_cede_to);
3008 3332
3009void 3333void
3010cede (...) 3334cede (...)
3011 CODE: 3335 CODE:
3012 CORO_EXECUTE_SLF_XS (slf_init_cede); 3336 CORO_EXECUTE_SLF_XS (slf_init_cede);
3026void 3350void
3027_set_readyhook (SV *hook) 3351_set_readyhook (SV *hook)
3028 PROTOTYPE: $ 3352 PROTOTYPE: $
3029 CODE: 3353 CODE:
3030 SvREFCNT_dec (coro_readyhook); 3354 SvREFCNT_dec (coro_readyhook);
3355 SvGETMAGIC (hook);
3031 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3356 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
3032 3357
3033int 3358int
3034prio (Coro::State coro, int newprio = 0) 3359prio (Coro::State coro, int newprio = 0)
3035 PROTOTYPE: $;$ 3360 PROTOTYPE: $;$
3066 PROTOTYPE: 3391 PROTOTYPE:
3067 CODE: 3392 CODE:
3068 RETVAL = coro_nready; 3393 RETVAL = coro_nready;
3069 OUTPUT: 3394 OUTPUT:
3070 RETVAL 3395 RETVAL
3396
3397void
3398suspend (Coro::State self)
3399 PROTOTYPE: $
3400 CODE:
3401 self->flags |= CF_SUSPENDED;
3402
3403void
3404resume (Coro::State self)
3405 PROTOTYPE: $
3406 CODE:
3407 self->flags &= ~CF_SUSPENDED;
3071 3408
3072void 3409void
3073_pool_handler (...) 3410_pool_handler (...)
3074 CODE: 3411 CODE:
3075 CORO_EXECUTE_SLF_XS (slf_init_pool_handler); 3412 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3130rouse_wait (...) 3467rouse_wait (...)
3131 PROTOTYPE: ;$ 3468 PROTOTYPE: ;$
3132 PPCODE: 3469 PPCODE:
3133 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 3470 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3134 3471
3472void
3473on_enter (SV *block)
3474 ALIAS:
3475 on_leave = 1
3476 PROTOTYPE: &
3477 CODE:
3478{
3479 struct coro *coro = SvSTATE_current;
3480 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
3481
3482 block = (SV *)coro_sv_2cv (aTHX_ block);
3483
3484 if (!*avp)
3485 *avp = newAV ();
3486
3487 av_push (*avp, SvREFCNT_inc (block));
3488
3489 if (!ix)
3490 on_enterleave_call (aTHX_ block);
3491
3492 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
3493 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
3494 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
3495}
3496
3135 3497
3136MODULE = Coro::State PACKAGE = PerlIO::cede 3498MODULE = Coro::State PACKAGE = PerlIO::cede
3137 3499
3138BOOT: 3500BOOT:
3139 PerlIO_define_layer (aTHX_ &PerlIO_cede); 3501 PerlIO_define_layer (aTHX_ &PerlIO_cede);
3142MODULE = Coro::State PACKAGE = Coro::Semaphore 3504MODULE = Coro::State PACKAGE = Coro::Semaphore
3143 3505
3144SV * 3506SV *
3145new (SV *klass, SV *count = 0) 3507new (SV *klass, SV *count = 0)
3146 CODE: 3508 CODE:
3509{
3510 int semcnt = 1;
3511
3512 if (count)
3513 {
3514 SvGETMAGIC (count);
3515
3516 if (SvOK (count))
3517 semcnt = SvIV (count);
3518 }
3519
3147 RETVAL = sv_bless ( 3520 RETVAL = sv_bless (
3148 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 3521 coro_waitarray_new (aTHX_ semcnt),
3149 GvSTASH (CvGV (cv)) 3522 GvSTASH (CvGV (cv))
3150 ); 3523 );
3524}
3151 OUTPUT: 3525 OUTPUT:
3152 RETVAL 3526 RETVAL
3153 3527
3154# helper for Coro::Channel 3528# helper for Coro::Channel and others
3155SV * 3529SV *
3156_alloc (int count) 3530_alloc (int count)
3157 CODE: 3531 CODE:
3158 RETVAL = coro_waitarray_new (aTHX_ count); 3532 RETVAL = coro_waitarray_new (aTHX_ count);
3159 OUTPUT: 3533 OUTPUT:
3217 for (i = 1; i <= wcount; ++i) 3591 for (i = 1; i <= wcount; ++i)
3218 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 3592 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3219 } 3593 }
3220} 3594}
3221 3595
3596MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
3597
3598void
3599_may_delete (SV *sem, int count, int extra_refs)
3600 PPCODE:
3601{
3602 AV *av = (AV *)SvRV (sem);
3603
3604 if (SvREFCNT ((SV *)av) == 1 + extra_refs
3605 && AvFILLp (av) == 0 /* no waiters, just count */
3606 && SvIV (AvARRAY (av)[0]) == count)
3607 XSRETURN_YES;
3608
3609 XSRETURN_NO;
3610}
3611
3222MODULE = Coro::State PACKAGE = Coro::Signal 3612MODULE = Coro::State PACKAGE = Coro::Signal
3223 3613
3224SV * 3614SV *
3225new (SV *klass) 3615new (SV *klass)
3226 CODE: 3616 CODE:

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines