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Comparing Coro/Coro/State.xs (file contents):
Revision 1.323 by root, Sat Nov 22 06:03:10 2008 UTC vs.
Revision 1.362 by root, Wed Jul 1 07:58:45 2009 UTC

133#else 133#else
134# define dSTACKLEVEL volatile void *stacklevel 134# define dSTACKLEVEL volatile void *stacklevel
135# define STACKLEVEL ((void *)&stacklevel) 135# define STACKLEVEL ((void *)&stacklevel)
136#endif 136#endif
137 137
138#define IN_DESTRUCT (PL_main_cv == Nullcv) 138#define IN_DESTRUCT PL_dirty
139 139
140#if __GNUC__ >= 3 140#if __GNUC__ >= 3
141# define attribute(x) __attribute__(x) 141# define attribute(x) __attribute__(x)
142# define expect(expr,value) __builtin_expect ((expr),(value)) 142# define expect(expr,value) __builtin_expect ((expr), (value))
143# define INLINE static inline 143# define INLINE static inline
144#else 144#else
145# define attribute(x) 145# define attribute(x)
146# define expect(expr,value) (expr) 146# define expect(expr,value) (expr)
147# define INLINE static 147# define INLINE static
159# if CORO_PTHREAD 159# if CORO_PTHREAD
160static void *coro_thx; 160static void *coro_thx;
161# endif 161# endif
162#endif 162#endif
163 163
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
171# endif
172#endif
173
164static double (*nvtime)(); /* so why doesn't it take void? */ 174static double (*nvtime)(); /* so why doesn't it take void? */
175static void (*u2time)(pTHX_ UV ret[2]);
165 176
166/* we hijack an hopefully unused CV flag for our purposes */ 177/* we hijack an hopefully unused CV flag for our purposes */
167#define CVf_SLF 0x4000 178#define CVf_SLF 0x4000
168static OP *pp_slf (pTHX); 179static OP *pp_slf (pTHX);
169 180
175static HV *coro_state_stash, *coro_stash; 186static HV *coro_state_stash, *coro_stash;
176static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 187static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
177 188
178static AV *av_destroy; /* destruction queue */ 189static AV *av_destroy; /* destruction queue */
179static SV *sv_manager; /* the manager coro */ 190static SV *sv_manager; /* the manager coro */
191static SV *sv_idle; /* $Coro::idle */
180 192
181static GV *irsgv; /* $/ */ 193static GV *irsgv; /* $/ */
182static GV *stdoutgv; /* *STDOUT */ 194static GV *stdoutgv; /* *STDOUT */
183static SV *rv_diehook; 195static SV *rv_diehook;
184static SV *rv_warnhook; 196static SV *rv_warnhook;
194static CV *cv_coro_state_new; 206static CV *cv_coro_state_new;
195 207
196/* Coro::AnyEvent */ 208/* Coro::AnyEvent */
197static SV *sv_activity; 209static SV *sv_activity;
198 210
211/* enable processtime/realtime profiling */
212static char enable_times;
213typedef U32 coro_ts[2];
214static coro_ts time_real, time_cpu;
215static char times_valid;
216
199static struct coro_cctx *cctx_first; 217static struct coro_cctx *cctx_first;
200static int cctx_count, cctx_idle; 218static int cctx_count, cctx_idle;
201 219
202enum { 220enum {
203 CC_MAPPED = 0x01, 221 CC_MAPPED = 0x01,
237enum { 255enum {
238 CF_RUNNING = 0x0001, /* coroutine is running */ 256 CF_RUNNING = 0x0001, /* coroutine is running */
239 CF_READY = 0x0002, /* coroutine is ready */ 257 CF_READY = 0x0002, /* coroutine is ready */
240 CF_NEW = 0x0004, /* has never been switched to */ 258 CF_NEW = 0x0004, /* has never been switched to */
241 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 259 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
260 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
242}; 261};
243 262
244/* the structure where most of the perl state is stored, overlaid on the cxstack */ 263/* the structure where most of the perl state is stored, overlaid on the cxstack */
245typedef struct 264typedef struct
246{ 265{
247 SV *defsv; 266 SV *defsv;
248 AV *defav; 267 AV *defav;
249 SV *errsv; 268 SV *errsv;
250 SV *irsgv; 269 SV *irsgv;
270 HV *hinthv;
251#define VAR(name,type) type name; 271#define VAR(name,type) type name;
252# include "state.h" 272# include "state.h"
253#undef VAR 273#undef VAR
254} perl_slots; 274} perl_slots;
255 275
257 277
258/* this is a structure representing a perl-level coroutine */ 278/* this is a structure representing a perl-level coroutine */
259struct coro { 279struct coro {
260 /* the C coroutine allocated to this perl coroutine, if any */ 280 /* the C coroutine allocated to this perl coroutine, if any */
261 coro_cctx *cctx; 281 coro_cctx *cctx;
282
283 /* ready queue */
284 struct coro *next_ready;
262 285
263 /* state data */ 286 /* state data */
264 struct CoroSLF slf_frame; /* saved slf frame */ 287 struct CoroSLF slf_frame; /* saved slf frame */
265 AV *mainstack; 288 AV *mainstack;
266 perl_slots *slot; /* basically the saved sp */ 289 perl_slots *slot; /* basically the saved sp */
283 /* async_pool */ 306 /* async_pool */
284 SV *saved_deffh; 307 SV *saved_deffh;
285 SV *invoke_cb; 308 SV *invoke_cb;
286 AV *invoke_av; 309 AV *invoke_av;
287 310
311 /* on_enter/on_leave */
312 AV *on_enter;
313 AV *on_leave;
314
315 /* times */
316 coro_ts t_cpu, t_real;
317
288 /* linked list */ 318 /* linked list */
289 struct coro *next, *prev; 319 struct coro *next, *prev;
290}; 320};
291 321
292typedef struct coro *Coro__State; 322typedef struct coro *Coro__State;
297/* the mainr easonw e don't support windows process emulation */ 327/* the mainr easonw e don't support windows process emulation */
298static struct CoroSLF slf_frame; /* the current slf frame */ 328static struct CoroSLF slf_frame; /* the current slf frame */
299 329
300/** Coro ********************************************************************/ 330/** Coro ********************************************************************/
301 331
302#define PRIO_MAX 3 332#define CORO_PRIO_MAX 3
303#define PRIO_HIGH 1 333#define CORO_PRIO_HIGH 1
304#define PRIO_NORMAL 0 334#define CORO_PRIO_NORMAL 0
305#define PRIO_LOW -1 335#define CORO_PRIO_LOW -1
306#define PRIO_IDLE -3 336#define CORO_PRIO_IDLE -3
307#define PRIO_MIN -4 337#define CORO_PRIO_MIN -4
308 338
309/* for Coro.pm */ 339/* for Coro.pm */
310static SV *coro_current; 340static SV *coro_current;
311static SV *coro_readyhook; 341static SV *coro_readyhook;
312static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 342static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
313static CV *cv_coro_run, *cv_coro_terminate; 343static CV *cv_coro_run, *cv_coro_terminate;
314static struct coro *coro_first; 344static struct coro *coro_first;
315#define coro_nready coroapi.nready 345#define coro_nready coroapi.nready
316 346
317/** lowlevel stuff **********************************************************/ 347/** lowlevel stuff **********************************************************/
350INLINE CV * 380INLINE CV *
351coro_sv_2cv (pTHX_ SV *sv) 381coro_sv_2cv (pTHX_ SV *sv)
352{ 382{
353 HV *st; 383 HV *st;
354 GV *gvp; 384 GV *gvp;
355 return sv_2cv (sv, &st, &gvp, 0); 385 CV *cv = sv_2cv (sv, &st, &gvp, 0);
386
387 if (!cv)
388 croak ("code reference expected");
389
390 return cv;
356} 391}
392
393INLINE void
394coro_times_update ()
395{
396#ifdef coro_clock_gettime
397 struct timespec ts;
398
399 ts.tv_sec = ts.tv_nsec = 0;
400 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
401 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
402
403 ts.tv_sec = ts.tv_nsec = 0;
404 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
405 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
406#else
407 dTHX;
408 UV tv[2];
409
410 u2time (aTHX_ tv);
411 time_real [0] = tv [0];
412 time_real [1] = tv [1] * 1000;
413#endif
414}
415
416INLINE void
417coro_times_add (struct coro *c)
418{
419 c->t_real [1] += time_real [1];
420 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
421 c->t_real [0] += time_real [0];
422
423 c->t_cpu [1] += time_cpu [1];
424 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
425 c->t_cpu [0] += time_cpu [0];
426}
427
428INLINE void
429coro_times_sub (struct coro *c)
430{
431 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
432 c->t_real [1] -= time_real [1];
433 c->t_real [0] -= time_real [0];
434
435 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
436 c->t_cpu [1] -= time_cpu [1];
437 c->t_cpu [0] -= time_cpu [0];
438}
439
440/*****************************************************************************/
441/* magic glue */
442
443#define CORO_MAGIC_type_cv 26
444#define CORO_MAGIC_type_state PERL_MAGIC_ext
445
446#define CORO_MAGIC_NN(sv, type) \
447 (expect_true (SvMAGIC (sv)->mg_type == type) \
448 ? SvMAGIC (sv) \
449 : mg_find (sv, type))
450
451#define CORO_MAGIC(sv, type) \
452 (expect_true (SvMAGIC (sv)) \
453 ? CORO_MAGIC_NN (sv, type) \
454 : 0)
455
456#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
457#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
458
459INLINE struct coro *
460SvSTATE_ (pTHX_ SV *coro)
461{
462 HV *stash;
463 MAGIC *mg;
464
465 if (SvROK (coro))
466 coro = SvRV (coro);
467
468 if (expect_false (SvTYPE (coro) != SVt_PVHV))
469 croak ("Coro::State object required");
470
471 stash = SvSTASH (coro);
472 if (expect_false (stash != coro_stash && stash != coro_state_stash))
473 {
474 /* very slow, but rare, check */
475 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
476 croak ("Coro::State object required");
477 }
478
479 mg = CORO_MAGIC_state (coro);
480 return (struct coro *)mg->mg_ptr;
481}
482
483#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
484
485/* faster than SvSTATE, but expects a coroutine hv */
486#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
487#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
488
489/*****************************************************************************/
490/* padlist management and caching */
357 491
358static AV * 492static AV *
359coro_derive_padlist (pTHX_ CV *cv) 493coro_derive_padlist (pTHX_ CV *cv)
360{ 494{
361 AV *padlist = CvPADLIST (cv); 495 AV *padlist = CvPADLIST (cv);
369 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 503 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
370#endif 504#endif
371 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 505 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
372 --AvFILLp (padlist); 506 --AvFILLp (padlist);
373 507
374 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); 508 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
375 av_store (newpadlist, 1, (SV *)newpad); 509 av_store (newpadlist, 1, (SV *)newpad);
376 510
377 return newpadlist; 511 return newpadlist;
378} 512}
379 513
380static void 514static void
381free_padlist (pTHX_ AV *padlist) 515free_padlist (pTHX_ AV *padlist)
382{ 516{
383 /* may be during global destruction */ 517 /* may be during global destruction */
384 if (SvREFCNT (padlist)) 518 if (!IN_DESTRUCT)
385 { 519 {
386 I32 i = AvFILLp (padlist); 520 I32 i = AvFILLp (padlist);
387 while (i >= 0) 521
522 while (i > 0) /* special-case index 0 */
388 { 523 {
389 SV **svp = av_fetch (padlist, i--, FALSE); 524 /* we try to be extra-careful here */
390 if (svp) 525 AV *av = (AV *)AvARRAY (padlist)[i--];
391 { 526 I32 j = AvFILLp (av);
392 SV *sv; 527
393 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) 528 while (j >= 0)
529 SvREFCNT_dec (AvARRAY (av)[j--]);
530
531 AvFILLp (av) = -1;
394 SvREFCNT_dec (sv); 532 SvREFCNT_dec (av);
395
396 SvREFCNT_dec (*svp);
397 }
398 } 533 }
399 534
535 SvREFCNT_dec (AvARRAY (padlist)[0]);
536
537 AvFILLp (padlist) = -1;
400 SvREFCNT_dec ((SV*)padlist); 538 SvREFCNT_dec ((SV*)padlist);
401 } 539 }
402} 540}
403 541
404static int 542static int
405coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 543coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
406{ 544{
407 AV *padlist; 545 AV *padlist;
408 AV *av = (AV *)mg->mg_obj; 546 AV *av = (AV *)mg->mg_obj;
547
548 /* perl manages to free our internal AV and _then_ call us */
549 if (IN_DESTRUCT)
550 return 0;
409 551
410 /* casting is fun. */ 552 /* casting is fun. */
411 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 553 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
412 free_padlist (aTHX_ padlist); 554 free_padlist (aTHX_ padlist);
413 555
414 SvREFCNT_dec (av); /* sv_magicext increased the refcount */ 556 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
415 557
416 return 0; 558 return 0;
417} 559}
418
419#define CORO_MAGIC_type_cv 26
420#define CORO_MAGIC_type_state PERL_MAGIC_ext
421 560
422static MGVTBL coro_cv_vtbl = { 561static MGVTBL coro_cv_vtbl = {
423 0, 0, 0, 0, 562 0, 0, 0, 0,
424 coro_cv_free 563 coro_cv_free
425}; 564};
426
427#define CORO_MAGIC_NN(sv, type) \
428 (expect_true (SvMAGIC (sv)->mg_type == type) \
429 ? SvMAGIC (sv) \
430 : mg_find (sv, type))
431
432#define CORO_MAGIC(sv, type) \
433 (expect_true (SvMAGIC (sv)) \
434 ? CORO_MAGIC_NN (sv, type) \
435 : 0)
436
437#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
438#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
439
440INLINE struct coro *
441SvSTATE_ (pTHX_ SV *coro)
442{
443 HV *stash;
444 MAGIC *mg;
445
446 if (SvROK (coro))
447 coro = SvRV (coro);
448
449 if (expect_false (SvTYPE (coro) != SVt_PVHV))
450 croak ("Coro::State object required");
451
452 stash = SvSTASH (coro);
453 if (expect_false (stash != coro_stash && stash != coro_state_stash))
454 {
455 /* very slow, but rare, check */
456 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
457 croak ("Coro::State object required");
458 }
459
460 mg = CORO_MAGIC_state (coro);
461 return (struct coro *)mg->mg_ptr;
462}
463
464#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
465
466/* faster than SvSTATE, but expects a coroutine hv */
467#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
468#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
469 565
470/* the next two functions merely cache the padlists */ 566/* the next two functions merely cache the padlists */
471static void 567static void
472get_padlist (pTHX_ CV *cv) 568get_padlist (pTHX_ CV *cv)
473{ 569{
501 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 597 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
502 598
503 av = (AV *)mg->mg_obj; 599 av = (AV *)mg->mg_obj;
504 600
505 if (expect_false (AvFILLp (av) >= AvMAX (av))) 601 if (expect_false (AvFILLp (av) >= AvMAX (av)))
506 av_extend (av, AvMAX (av) + 1); 602 av_extend (av, AvFILLp (av) + 1);
507 603
508 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 604 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
509} 605}
510 606
511/** load & save, init *******************************************************/ 607/** load & save, init *******************************************************/
608
609static void
610on_enterleave_call (pTHX_ SV *cb);
512 611
513static void 612static void
514load_perl (pTHX_ Coro__State c) 613load_perl (pTHX_ Coro__State c)
515{ 614{
516 perl_slots *slot = c->slot; 615 perl_slots *slot = c->slot;
517 c->slot = 0; 616 c->slot = 0;
518 617
519 PL_mainstack = c->mainstack; 618 PL_mainstack = c->mainstack;
520 619
521 GvSV (PL_defgv) = slot->defsv; 620 GvSV (PL_defgv) = slot->defsv;
522 GvAV (PL_defgv) = slot->defav; 621 GvAV (PL_defgv) = slot->defav;
523 GvSV (PL_errgv) = slot->errsv; 622 GvSV (PL_errgv) = slot->errsv;
524 GvSV (irsgv) = slot->irsgv; 623 GvSV (irsgv) = slot->irsgv;
624 GvHV (PL_hintgv) = slot->hinthv;
525 625
526 #define VAR(name,type) PL_ ## name = slot->name; 626 #define VAR(name,type) PL_ ## name = slot->name;
527 # include "state.h" 627 # include "state.h"
528 #undef VAR 628 #undef VAR
529 629
543 PUTBACK; 643 PUTBACK;
544 } 644 }
545 645
546 slf_frame = c->slf_frame; 646 slf_frame = c->slf_frame;
547 CORO_THROW = c->except; 647 CORO_THROW = c->except;
648
649 if (expect_false (enable_times))
650 {
651 if (expect_false (!times_valid))
652 coro_times_update ();
653
654 coro_times_sub (c);
655 }
656
657 if (expect_false (c->on_enter))
658 {
659 int i;
660
661 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
662 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
663 }
548} 664}
549 665
550static void 666static void
551save_perl (pTHX_ Coro__State c) 667save_perl (pTHX_ Coro__State c)
552{ 668{
669 if (expect_false (c->on_leave))
670 {
671 int i;
672
673 for (i = AvFILLp (c->on_leave); i >= 0; --i)
674 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
675 }
676
677 times_valid = 0;
678
679 if (expect_false (enable_times))
680 {
681 coro_times_update (); times_valid = 1;
682 coro_times_add (c);
683 }
684
553 c->except = CORO_THROW; 685 c->except = CORO_THROW;
554 c->slf_frame = slf_frame; 686 c->slf_frame = slf_frame;
555 687
556 { 688 {
557 dSP; 689 dSP;
570 { 702 {
571 while (expect_true (cxix >= 0)) 703 while (expect_true (cxix >= 0))
572 { 704 {
573 PERL_CONTEXT *cx = &ccstk[cxix--]; 705 PERL_CONTEXT *cx = &ccstk[cxix--];
574 706
575 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 707 if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
576 { 708 {
577 CV *cv = cx->blk_sub.cv; 709 CV *cv = cx->blk_sub.cv;
578 710
579 if (expect_true (CvDEPTH (cv))) 711 if (expect_true (CvDEPTH (cv)))
580 { 712 {
604 /* we manually unroll here, as usually 2 slots is enough */ 736 /* we manually unroll here, as usually 2 slots is enough */
605 if (SLOT_COUNT >= 1) CXINC; 737 if (SLOT_COUNT >= 1) CXINC;
606 if (SLOT_COUNT >= 2) CXINC; 738 if (SLOT_COUNT >= 2) CXINC;
607 if (SLOT_COUNT >= 3) CXINC; 739 if (SLOT_COUNT >= 3) CXINC;
608 { 740 {
609 int i; 741 unsigned int i;
610 for (i = 3; i < SLOT_COUNT; ++i) 742 for (i = 3; i < SLOT_COUNT; ++i)
611 CXINC; 743 CXINC;
612 } 744 }
613 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 745 cxstack_ix -= SLOT_COUNT; /* undo allocation */
614 746
615 c->mainstack = PL_mainstack; 747 c->mainstack = PL_mainstack;
616 748
617 { 749 {
618 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 750 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
619 751
620 slot->defav = GvAV (PL_defgv); 752 slot->defav = GvAV (PL_defgv);
621 slot->defsv = DEFSV; 753 slot->defsv = DEFSV;
622 slot->errsv = ERRSV; 754 slot->errsv = ERRSV;
623 slot->irsgv = GvSV (irsgv); 755 slot->irsgv = GvSV (irsgv);
756 slot->hinthv = GvHV (PL_hintgv);
624 757
625 #define VAR(name,type) slot->name = PL_ ## name; 758 #define VAR(name,type) slot->name = PL_ ## name;
626 # include "state.h" 759 # include "state.h"
627 #undef VAR 760 #undef VAR
628 } 761 }
755#endif 888#endif
756 889
757/* 890/*
758 * This overrides the default magic get method of %SIG elements. 891 * This overrides the default magic get method of %SIG elements.
759 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 892 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
760 * and instead of tryign to save and restore the hash elements, we just provide 893 * and instead of trying to save and restore the hash elements, we just provide
761 * readback here. 894 * readback here.
762 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
763 * not expecting this to actually change the hook. This is a potential problem
764 * when a schedule happens then, but we ignore this.
765 */ 895 */
766static int 896static int
767coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 897coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
768{ 898{
769 const char *s = MgPV_nolen_const (mg); 899 const char *s = MgPV_nolen_const (mg);
822 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 952 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
823 953
824 if (svp) 954 if (svp)
825 { 955 {
826 SV *old = *svp; 956 SV *old = *svp;
827 *svp = newSVsv (sv); 957 *svp = SvOK (sv) ? newSVsv (sv) : 0;
828 SvREFCNT_dec (old); 958 SvREFCNT_dec (old);
829 return 0; 959 return 0;
830 } 960 }
831 } 961 }
832 962
864 994
865 PL_runops = RUNOPS_DEFAULT; 995 PL_runops = RUNOPS_DEFAULT;
866 PL_curcop = &PL_compiling; 996 PL_curcop = &PL_compiling;
867 PL_in_eval = EVAL_NULL; 997 PL_in_eval = EVAL_NULL;
868 PL_comppad = 0; 998 PL_comppad = 0;
999 PL_comppad_name = 0;
1000 PL_comppad_name_fill = 0;
1001 PL_comppad_name_floor = 0;
869 PL_curpm = 0; 1002 PL_curpm = 0;
870 PL_curpad = 0; 1003 PL_curpad = 0;
871 PL_localizing = 0; 1004 PL_localizing = 0;
872 PL_dirty = 0; 1005 PL_dirty = 0;
873 PL_restartop = 0; 1006 PL_restartop = 0;
874#if PERL_VERSION_ATLEAST (5,10,0) 1007#if PERL_VERSION_ATLEAST (5,10,0)
875 PL_parser = 0; 1008 PL_parser = 0;
876#endif 1009#endif
1010 PL_hints = 0;
877 1011
878 /* recreate the die/warn hooks */ 1012 /* recreate the die/warn hooks */
879 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1013 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
880 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1014 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
881 1015
882 GvSV (PL_defgv) = newSV (0); 1016 GvSV (PL_defgv) = newSV (0);
883 GvAV (PL_defgv) = coro->args; coro->args = 0; 1017 GvAV (PL_defgv) = coro->args; coro->args = 0;
884 GvSV (PL_errgv) = newSV (0); 1018 GvSV (PL_errgv) = newSV (0);
885 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1019 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1020 GvHV (PL_hintgv) = 0;
886 PL_rs = newSVsv (GvSV (irsgv)); 1021 PL_rs = newSVsv (GvSV (irsgv));
887 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1022 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
888 1023
889 { 1024 {
890 dSP; 1025 dSP;
916 1051
917 PL_op = (OP *)&coro_setup_op; 1052 PL_op = (OP *)&coro_setup_op;
918 1053
919 /* copy throw, in case it was set before coro_setup */ 1054 /* copy throw, in case it was set before coro_setup */
920 CORO_THROW = coro->except; 1055 CORO_THROW = coro->except;
921}
922 1056
1057 if (expect_false (enable_times))
1058 {
1059 coro_times_update ();
1060 coro_times_sub (coro);
1061 }
1062}
1063
923static void 1064static void
924coro_destruct (pTHX_ struct coro *coro) 1065coro_unwind_stacks (pTHX)
925{ 1066{
926 if (!IN_DESTRUCT) 1067 if (!IN_DESTRUCT)
927 { 1068 {
928 /* restore all saved variables and stuff */ 1069 /* restore all saved variables and stuff */
929 LEAVE_SCOPE (0); 1070 LEAVE_SCOPE (0);
937 POPSTACK_TO (PL_mainstack); 1078 POPSTACK_TO (PL_mainstack);
938 1079
939 /* unwind main stack */ 1080 /* unwind main stack */
940 dounwind (-1); 1081 dounwind (-1);
941 } 1082 }
1083}
942 1084
943 SvREFCNT_dec (GvSV (PL_defgv)); 1085static void
944 SvREFCNT_dec (GvAV (PL_defgv)); 1086coro_destruct_perl (pTHX_ struct coro *coro)
945 SvREFCNT_dec (GvSV (PL_errgv)); 1087{
946 SvREFCNT_dec (PL_defoutgv); 1088 SV *svf [9];
947 SvREFCNT_dec (PL_rs);
948 SvREFCNT_dec (GvSV (irsgv));
949 1089
950 SvREFCNT_dec (PL_diehook);
951 SvREFCNT_dec (PL_warnhook);
952 1090 {
1091 struct coro *current = SvSTATE_current;
1092
1093 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1094
1095 save_perl (aTHX_ current);
1096 load_perl (aTHX_ coro);
1097
1098 coro_unwind_stacks (aTHX);
1099 coro_destruct_stacks (aTHX);
1100
1101 // now save some sv's to be free'd later
1102 svf [0] = GvSV (PL_defgv);
1103 svf [1] = (SV *)GvAV (PL_defgv);
1104 svf [2] = GvSV (PL_errgv);
1105 svf [3] = (SV *)PL_defoutgv;
1106 svf [4] = PL_rs;
1107 svf [5] = GvSV (irsgv);
1108 svf [6] = (SV *)GvHV (PL_hintgv);
1109 svf [7] = PL_diehook;
1110 svf [8] = PL_warnhook;
1111 assert (9 == sizeof (svf) / sizeof (*svf));
1112
1113 load_perl (aTHX_ current);
1114 }
1115
1116 {
1117 unsigned int i;
1118
1119 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1120 SvREFCNT_dec (svf [i]);
1121
953 SvREFCNT_dec (coro->saved_deffh); 1122 SvREFCNT_dec (coro->saved_deffh);
954 SvREFCNT_dec (coro->rouse_cb); 1123 SvREFCNT_dec (coro->rouse_cb);
955 SvREFCNT_dec (coro->invoke_cb); 1124 SvREFCNT_dec (coro->invoke_cb);
956 SvREFCNT_dec (coro->invoke_av); 1125 SvREFCNT_dec (coro->invoke_av);
957 1126 }
958 coro_destruct_stacks (aTHX);
959} 1127}
960 1128
961INLINE void 1129INLINE void
962free_coro_mortal (pTHX) 1130free_coro_mortal (pTHX)
963{ 1131{
1168 /* 1336 /*
1169 * If perl-run returns we assume exit() was being called or the coro 1337 * If perl-run returns we assume exit() was being called or the coro
1170 * fell off the end, which seems to be the only valid (non-bug) 1338 * fell off the end, which seems to be the only valid (non-bug)
1171 * reason for perl_run to return. We try to exit by jumping to the 1339 * reason for perl_run to return. We try to exit by jumping to the
1172 * bootstrap-time "top" top_env, as we cannot restore the "main" 1340 * bootstrap-time "top" top_env, as we cannot restore the "main"
1173 * coroutine as Coro has no such concept 1341 * coroutine as Coro has no such concept.
1342 * This actually isn't valid with the pthread backend, but OSes requiring
1343 * that backend are too broken to do it in a standards-compliant way.
1174 */ 1344 */
1175 PL_top_env = main_top_env; 1345 PL_top_env = main_top_env;
1176 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 1346 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1177 } 1347 }
1178} 1348}
1255cctx_destroy (coro_cctx *cctx) 1425cctx_destroy (coro_cctx *cctx)
1256{ 1426{
1257 if (!cctx) 1427 if (!cctx)
1258 return; 1428 return;
1259 1429
1260 assert (cctx != cctx_current);//D temporary 1430 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
1261 1431
1262 --cctx_count; 1432 --cctx_count;
1263 coro_destroy (&cctx->cctx); 1433 coro_destroy (&cctx->cctx);
1264 1434
1265 /* coro_transfer creates new, empty cctx's */ 1435 /* coro_transfer creates new, empty cctx's */
1329 /* TODO: throwing up here is considered harmful */ 1499 /* TODO: throwing up here is considered harmful */
1330 1500
1331 if (expect_true (prev != next)) 1501 if (expect_true (prev != next))
1332 { 1502 {
1333 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1503 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1334 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); 1504 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1335 1505
1336 if (expect_false (next->flags & CF_RUNNING))
1337 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1338
1339 if (expect_false (next->flags & CF_DESTROYED)) 1506 if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1340 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); 1507 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1341 1508
1342#if !PERL_VERSION_ATLEAST (5,10,0) 1509#if !PERL_VERSION_ATLEAST (5,10,0)
1343 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1510 if (expect_false (PL_lex_state != LEX_NOTPARSING))
1344 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1511 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1345#endif 1512#endif
1393 )) 1560 ))
1394 { 1561 {
1395 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1562 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1396 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); 1563 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1397 1564
1398 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1565 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1399 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1566 /* without this the next cctx_get might destroy the running cctx while still in use */
1400 if (expect_false (CCTX_EXPIRED (cctx_current))) 1567 if (expect_false (CCTX_EXPIRED (cctx_current)))
1401 if (!next->cctx) 1568 if (expect_true (!next->cctx))
1402 next->cctx = cctx_get (aTHX); 1569 next->cctx = cctx_get (aTHX);
1403 1570
1404 cctx_put (cctx_current); 1571 cctx_put (cctx_current);
1405 assert (!prev->cctx);//D temporary
1406 } 1572 }
1407 else 1573 else
1408 prev->cctx = cctx_current; 1574 prev->cctx = cctx_current;
1409 1575
1410 ++next->usecount; 1576 ++next->usecount;
1434coro_state_destroy (pTHX_ struct coro *coro) 1600coro_state_destroy (pTHX_ struct coro *coro)
1435{ 1601{
1436 if (coro->flags & CF_DESTROYED) 1602 if (coro->flags & CF_DESTROYED)
1437 return 0; 1603 return 0;
1438 1604
1439 if (coro->on_destroy) 1605 if (coro->on_destroy && !PL_dirty)
1440 coro->on_destroy (aTHX_ coro); 1606 coro->on_destroy (aTHX_ coro);
1441 1607
1442 coro->flags |= CF_DESTROYED; 1608 coro->flags |= CF_DESTROYED;
1443 1609
1444 if (coro->flags & CF_READY) 1610 if (coro->flags & CF_READY)
1448 --coro_nready; 1614 --coro_nready;
1449 } 1615 }
1450 else 1616 else
1451 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1617 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1452 1618
1453 if (coro->mainstack && coro->mainstack != main_mainstack) 1619 if (coro->mainstack
1454 { 1620 && coro->mainstack != main_mainstack
1455 struct coro temp; 1621 && coro->slot
1456 1622 && !PL_dirty)
1457 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1458
1459 save_perl (aTHX_ &temp);
1460 load_perl (aTHX_ coro);
1461
1462 coro_destruct (aTHX_ coro); 1623 coro_destruct_perl (aTHX_ coro);
1463
1464 load_perl (aTHX_ &temp);
1465
1466 coro->slot = 0;
1467 }
1468 1624
1469 cctx_destroy (coro->cctx); 1625 cctx_destroy (coro->cctx);
1470 SvREFCNT_dec (coro->startcv); 1626 SvREFCNT_dec (coro->startcv);
1471 SvREFCNT_dec (coro->args); 1627 SvREFCNT_dec (coro->args);
1472 SvREFCNT_dec (CORO_THROW); 1628 SvREFCNT_dec (CORO_THROW);
1559/** Coro ********************************************************************/ 1715/** Coro ********************************************************************/
1560 1716
1561INLINE void 1717INLINE void
1562coro_enq (pTHX_ struct coro *coro) 1718coro_enq (pTHX_ struct coro *coro)
1563{ 1719{
1564 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1720 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1565}
1566 1721
1567INLINE SV * 1722 SvREFCNT_inc_NN (coro->hv);
1723
1724 coro->next_ready = 0;
1725 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1726 ready [1] = coro;
1727}
1728
1729INLINE struct coro *
1568coro_deq (pTHX) 1730coro_deq (pTHX)
1569{ 1731{
1570 int prio; 1732 int prio;
1571 1733
1572 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1734 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1573 if (AvFILLp (coro_ready [prio]) >= 0) 1735 {
1574 return av_shift (coro_ready [prio]); 1736 struct coro **ready = coro_ready [prio];
1737
1738 if (ready [0])
1739 {
1740 struct coro *coro = ready [0];
1741 ready [0] = coro->next_ready;
1742 return coro;
1743 }
1744 }
1575 1745
1576 return 0; 1746 return 0;
1577} 1747}
1578 1748
1579static int 1749static int
1581{ 1751{
1582 struct coro *coro; 1752 struct coro *coro;
1583 SV *sv_hook; 1753 SV *sv_hook;
1584 void (*xs_hook)(void); 1754 void (*xs_hook)(void);
1585 1755
1586 if (SvROK (coro_sv))
1587 coro_sv = SvRV (coro_sv);
1588
1589 coro = SvSTATE (coro_sv); 1756 coro = SvSTATE (coro_sv);
1590 1757
1591 if (coro->flags & CF_READY) 1758 if (coro->flags & CF_READY)
1592 return 0; 1759 return 0;
1593 1760
1646static void 1813static void
1647prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1814prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1648{ 1815{
1649 for (;;) 1816 for (;;)
1650 { 1817 {
1651 SV *next_sv = coro_deq (aTHX); 1818 struct coro *next = coro_deq (aTHX);
1652 1819
1653 if (expect_true (next_sv)) 1820 if (expect_true (next))
1654 { 1821 {
1655 struct coro *next = SvSTATE_hv (next_sv);
1656
1657 /* cannot transfer to destroyed coros, skip and look for next */ 1822 /* cannot transfer to destroyed coros, skip and look for next */
1658 if (expect_false (next->flags & CF_DESTROYED)) 1823 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1659 SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ 1824 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1660 else 1825 else
1661 { 1826 {
1662 next->flags &= ~CF_READY; 1827 next->flags &= ~CF_READY;
1663 --coro_nready; 1828 --coro_nready;
1664 1829
1667 } 1832 }
1668 } 1833 }
1669 else 1834 else
1670 { 1835 {
1671 /* nothing to schedule: call the idle handler */ 1836 /* nothing to schedule: call the idle handler */
1837 if (SvROK (sv_idle)
1838 && SvOBJECT (SvRV (sv_idle)))
1839 {
1840 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1841 api_ready (aTHX_ SvRV (sv_idle));
1842 --coro_nready;
1843 }
1844 else
1845 {
1672 dSP; 1846 dSP;
1673 1847
1674 ENTER; 1848 ENTER;
1675 SAVETMPS; 1849 SAVETMPS;
1676 1850
1677 PUSHMARK (SP); 1851 PUSHMARK (SP);
1678 PUTBACK; 1852 PUTBACK;
1679 call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD); 1853 call_sv (sv_idle, G_VOID | G_DISCARD);
1680 1854
1681 FREETMPS; 1855 FREETMPS;
1682 LEAVE; 1856 LEAVE;
1857 }
1683 } 1858 }
1684 } 1859 }
1685} 1860}
1686 1861
1687INLINE void 1862INLINE void
1758static void 1933static void
1759api_trace (pTHX_ SV *coro_sv, int flags) 1934api_trace (pTHX_ SV *coro_sv, int flags)
1760{ 1935{
1761 struct coro *coro = SvSTATE (coro_sv); 1936 struct coro *coro = SvSTATE (coro_sv);
1762 1937
1938 if (coro->flags & CF_RUNNING)
1939 croak ("cannot enable tracing on a running coroutine, caught");
1940
1763 if (flags & CC_TRACE) 1941 if (flags & CC_TRACE)
1764 { 1942 {
1765 if (!coro->cctx) 1943 if (!coro->cctx)
1766 coro->cctx = cctx_new_run (); 1944 coro->cctx = cctx_new_run ();
1767 else if (!(coro->cctx->flags & CC_TRACE)) 1945 else if (!(coro->cctx->flags & CC_TRACE))
1768 croak ("cannot enable tracing on coroutine with custom stack,"); 1946 croak ("cannot enable tracing on coroutine with custom stack, caught");
1769 1947
1770 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 1948 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1771 } 1949 }
1772 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 1950 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1773 { 1951 {
1829 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2007 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1830 api_ready (aTHX_ sv_manager); 2008 api_ready (aTHX_ sv_manager);
1831 2009
1832 frame->prepare = prepare_schedule; 2010 frame->prepare = prepare_schedule;
1833 frame->check = slf_check_repeat; 2011 frame->check = slf_check_repeat;
2012
2013 /* as a minor optimisation, we could unwind all stacks here */
2014 /* but that puts extra pressure on pp_slf, and is not worth much */
2015 /*coro_unwind_stacks (aTHX);*/
1834} 2016}
1835 2017
1836/*****************************************************************************/ 2018/*****************************************************************************/
1837/* async pool handler */ 2019/* async pool handler */
1838 2020
1921 SV *data = (SV *)GENSUB_ARG; 2103 SV *data = (SV *)GENSUB_ARG;
1922 2104
1923 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2105 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1924 { 2106 {
1925 /* first call, set args */ 2107 /* first call, set args */
2108 SV *coro = SvRV (data);
1926 AV *av = newAV (); 2109 AV *av = newAV ();
1927 SV *coro = SvRV (data);
1928 2110
1929 SvRV_set (data, (SV *)av); 2111 SvRV_set (data, (SV *)av);
1930 api_ready (aTHX_ coro);
1931 SvREFCNT_dec (coro);
1932 2112
1933 /* better take a full copy of the arguments */ 2113 /* better take a full copy of the arguments */
1934 while (items--) 2114 while (items--)
1935 av_store (av, items, newSVsv (ST (items))); 2115 av_store (av, items, newSVsv (ST (items)));
2116
2117 api_ready (aTHX_ coro);
2118 SvREFCNT_dec (coro);
1936 } 2119 }
1937 2120
1938 XSRETURN_EMPTY; 2121 XSRETURN_EMPTY;
1939} 2122}
1940 2123
1957 2140
1958 EXTEND (SP, AvFILLp (av) + 1); 2141 EXTEND (SP, AvFILLp (av) + 1);
1959 for (i = 0; i <= AvFILLp (av); ++i) 2142 for (i = 0; i <= AvFILLp (av); ++i)
1960 PUSHs (sv_2mortal (AvARRAY (av)[i])); 2143 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1961 2144
1962 /* we have stolen the elements, so ste length to zero and free */ 2145 /* we have stolen the elements, so set length to zero and free */
1963 AvFILLp (av) = -1; 2146 AvFILLp (av) = -1;
1964 av_undef (av); 2147 av_undef (av);
1965 2148
1966 PUTBACK; 2149 PUTBACK;
1967 } 2150 }
2257 2440
2258 PL_op->op_ppaddr = pp_slf; 2441 PL_op->op_ppaddr = pp_slf;
2259 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ 2442 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2260 2443
2261 PL_op = (OP *)&slf_restore; 2444 PL_op = (OP *)&slf_restore;
2445}
2446
2447/*****************************************************************************/
2448/* dynamic wind */
2449
2450static void
2451on_enterleave_call (pTHX_ SV *cb)
2452{
2453 dSP;
2454
2455 PUSHSTACK;
2456
2457 PUSHMARK (SP);
2458 PUTBACK;
2459 call_sv (cb, G_VOID | G_DISCARD);
2460 SPAGAIN;
2461
2462 POPSTACK;
2463}
2464
2465static SV *
2466coro_avp_pop_and_free (pTHX_ AV **avp)
2467{
2468 AV *av = *avp;
2469 SV *res = av_pop (av);
2470
2471 if (AvFILLp (av) < 0)
2472 {
2473 *avp = 0;
2474 SvREFCNT_dec (av);
2475 }
2476
2477 return res;
2478}
2479
2480static void
2481coro_pop_on_enter (pTHX_ void *coro)
2482{
2483 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2484 SvREFCNT_dec (cb);
2485}
2486
2487static void
2488coro_pop_on_leave (pTHX_ void *coro)
2489{
2490 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2491 on_enterleave_call (aTHX_ sv_2mortal (cb));
2262} 2492}
2263 2493
2264/*****************************************************************************/ 2494/*****************************************************************************/
2265/* PerlIO::cede */ 2495/* PerlIO::cede */
2266 2496
2340/* Coro::Semaphore & Coro::Signal */ 2570/* Coro::Semaphore & Coro::Signal */
2341 2571
2342static SV * 2572static SV *
2343coro_waitarray_new (pTHX_ int count) 2573coro_waitarray_new (pTHX_ int count)
2344{ 2574{
2345 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 2575 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2346 AV *av = newAV (); 2576 AV *av = newAV ();
2347 SV **ary; 2577 SV **ary;
2348 2578
2349 /* unfortunately, building manually saves memory */ 2579 /* unfortunately, building manually saves memory */
2350 Newx (ary, 2, SV *); 2580 Newx (ary, 2, SV *);
2351 AvALLOC (av) = ary; 2581 AvALLOC (av) = ary;
2582#if PERL_VERSION_ATLEAST (5,10,0)
2352 /*AvARRAY (av) = ary;*/ 2583 AvARRAY (av) = ary;
2584#else
2353 SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */ 2585 /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
2586 /* -DDEBUGGING flags this as a bug, despite it perfectly working */
2587 SvPVX ((SV *)av) = (char *)ary;
2588#endif
2354 AvMAX (av) = 1; 2589 AvMAX (av) = 1;
2355 AvFILLp (av) = 0; 2590 AvFILLp (av) = 0;
2356 ary [0] = newSViv (count); 2591 ary [0] = newSViv (count);
2357 2592
2358 return newRV_noinc ((SV *)av); 2593 return newRV_noinc ((SV *)av);
2489 { 2724 {
2490 /* callback form */ 2725 /* callback form */
2491 AV *av = (AV *)SvRV (arg [0]); 2726 AV *av = (AV *)SvRV (arg [0]);
2492 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 2727 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2493 2728
2494 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); 2729 av_push (av, SvREFCNT_inc_NN (cb_cv));
2495 2730
2496 if (SvIVX (AvARRAY (av)[0]) > 0) 2731 if (SvIVX (AvARRAY (av)[0]) > 0)
2497 coro_semaphore_adjust (aTHX_ av, 0); 2732 coro_semaphore_adjust (aTHX_ av, 0);
2498 2733
2499 frame->prepare = prepare_nop; 2734 frame->prepare = prepare_nop;
2523 AvARRAY (av)[0] = AvARRAY (av)[1]; 2758 AvARRAY (av)[0] = AvARRAY (av)[1];
2524 AvARRAY (av)[1] = cb; 2759 AvARRAY (av)[1] = cb;
2525 2760
2526 cb = av_shift (av); 2761 cb = av_shift (av);
2527 2762
2763 if (SvTYPE (cb) == SVt_PVCV)
2764 {
2765 dSP;
2766 PUSHMARK (SP);
2767 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2768 PUTBACK;
2769 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2770 }
2771 else
2772 {
2528 api_ready (aTHX_ cb); 2773 api_ready (aTHX_ cb);
2529 sv_setiv (cb, 0); /* signal waiter */ 2774 sv_setiv (cb, 0); /* signal waiter */
2775 }
2776
2530 SvREFCNT_dec (cb); 2777 SvREFCNT_dec (cb);
2531 2778
2532 --count; 2779 --count;
2533 } 2780 }
2534} 2781}
2543static void 2790static void
2544slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2791slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2545{ 2792{
2546 AV *av = (AV *)SvRV (arg [0]); 2793 AV *av = (AV *)SvRV (arg [0]);
2547 2794
2795 if (items >= 2)
2796 {
2797 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2798 av_push (av, SvREFCNT_inc_NN (cb_cv));
2799
2548 if (SvIVX (AvARRAY (av)[0])) 2800 if (SvIVX (AvARRAY (av)[0]))
2801 coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */
2802
2803 frame->prepare = prepare_nop;
2804 frame->check = slf_check_nop;
2805 }
2806 else if (SvIVX (AvARRAY (av)[0]))
2549 { 2807 {
2550 SvIVX (AvARRAY (av)[0]) = 0; 2808 SvIVX (AvARRAY (av)[0]) = 0;
2551 frame->prepare = prepare_nop; 2809 frame->prepare = prepare_nop;
2552 frame->check = slf_check_nop; 2810 frame->check = slf_check_nop;
2553 } 2811 }
2554 else 2812 else
2555 { 2813 {
2556 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 2814 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2557 2815
2558 av_push (av, waiter); 2816 av_push (av, waiter);
2559 2817
2560 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 2818 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2561 frame->prepare = prepare_schedule; 2819 frame->prepare = prepare_schedule;
2800 3058
2801 if (!svp) croak ("Time::HiRes is required"); 3059 if (!svp) croak ("Time::HiRes is required");
2802 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); 3060 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2803 3061
2804 nvtime = INT2PTR (double (*)(), SvIV (*svp)); 3062 nvtime = INT2PTR (double (*)(), SvIV (*svp));
3063
3064 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
3065 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
2805 } 3066 }
2806 3067
2807 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 3068 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2808} 3069}
2809 3070
2810SV * 3071SV *
2811new (char *klass, ...) 3072new (char *klass, ...)
2812 ALIAS: 3073 ALIAS:
2887SV * 3148SV *
2888clone (Coro::State coro) 3149clone (Coro::State coro)
2889 CODE: 3150 CODE:
2890{ 3151{
2891#if CORO_CLONE 3152#if CORO_CLONE
2892 struct coro *ncoro = coro_clone (coro); 3153 struct coro *ncoro = coro_clone (aTHX_ coro);
2893 MAGIC *mg; 3154 MAGIC *mg;
2894 /* TODO: too much duplication */ 3155 /* TODO: too much duplication */
2895 ncoro->hv = newHV (); 3156 ncoro->hv = newHV ();
2896 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); 3157 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
2897 mg->mg_flags |= MGf_DUP; 3158 mg->mg_flags |= MGf_DUP;
2959 eval = 1 3220 eval = 1
2960 CODE: 3221 CODE:
2961{ 3222{
2962 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3223 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2963 { 3224 {
2964 struct coro temp; 3225 struct coro *current = SvSTATE_current;
2965 3226
2966 if (!(coro->flags & CF_RUNNING)) 3227 if (current != coro)
2967 { 3228 {
2968 PUTBACK; 3229 PUTBACK;
2969 save_perl (aTHX_ &temp); 3230 save_perl (aTHX_ current);
2970 load_perl (aTHX_ coro); 3231 load_perl (aTHX_ coro);
3232 SPAGAIN;
2971 } 3233 }
2972 3234
2973 {
2974 dSP;
2975 ENTER;
2976 SAVETMPS;
2977 PUTBACK;
2978 PUSHSTACK; 3235 PUSHSTACK;
3236
2979 PUSHMARK (SP); 3237 PUSHMARK (SP);
3238 PUTBACK;
2980 3239
2981 if (ix) 3240 if (ix)
2982 eval_sv (coderef, 0); 3241 eval_sv (coderef, 0);
2983 else 3242 else
2984 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3243 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2985 3244
2986 POPSTACK; 3245 POPSTACK;
2987 SPAGAIN; 3246 SPAGAIN;
2988 FREETMPS;
2989 LEAVE;
2990 PUTBACK;
2991 }
2992 3247
2993 if (!(coro->flags & CF_RUNNING)) 3248 if (current != coro)
2994 { 3249 {
3250 PUTBACK;
2995 save_perl (aTHX_ coro); 3251 save_perl (aTHX_ coro);
2996 load_perl (aTHX_ &temp); 3252 load_perl (aTHX_ current);
2997 SPAGAIN; 3253 SPAGAIN;
2998 } 3254 }
2999 } 3255 }
3000} 3256}
3001 3257
3005 ALIAS: 3261 ALIAS:
3006 is_ready = CF_READY 3262 is_ready = CF_READY
3007 is_running = CF_RUNNING 3263 is_running = CF_RUNNING
3008 is_new = CF_NEW 3264 is_new = CF_NEW
3009 is_destroyed = CF_DESTROYED 3265 is_destroyed = CF_DESTROYED
3266 is_suspended = CF_SUSPENDED
3010 CODE: 3267 CODE:
3011 RETVAL = boolSV (coro->flags & ix); 3268 RETVAL = boolSV (coro->flags & ix);
3012 OUTPUT: 3269 OUTPUT:
3013 RETVAL 3270 RETVAL
3014 3271
3018 CODE: 3275 CODE:
3019{ 3276{
3020 struct coro *current = SvSTATE_current; 3277 struct coro *current = SvSTATE_current;
3021 SV **throwp = self == current ? &CORO_THROW : &self->except; 3278 SV **throwp = self == current ? &CORO_THROW : &self->except;
3022 SvREFCNT_dec (*throwp); 3279 SvREFCNT_dec (*throwp);
3280 SvGETMAGIC (throw);
3023 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3281 *throwp = SvOK (throw) ? newSVsv (throw) : 0;
3024} 3282}
3025 3283
3026void 3284void
3027api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3285api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3079 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3337 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3080 3338
3081 SV *tmp = *src; *src = *dst; *dst = tmp; 3339 SV *tmp = *src; *src = *dst; *dst = tmp;
3082 } 3340 }
3083 3341
3342void
3343cancel (Coro::State self)
3344 CODE:
3345 coro_state_destroy (aTHX_ self);
3346 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
3347
3348
3349SV *
3350enable_times (int enabled = enable_times)
3351 CODE:
3352{
3353 RETVAL = boolSV (enable_times);
3354
3355 if (enabled != enable_times)
3356 {
3357 enable_times = enabled;
3358
3359 coro_times_update ();
3360 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3361 }
3362}
3363 OUTPUT:
3364 RETVAL
3365
3366void
3367times (Coro::State self)
3368 PPCODE:
3369{
3370 struct coro *current = SvSTATE (coro_current);
3371
3372 if (expect_false (current == self))
3373 {
3374 coro_times_update ();
3375 coro_times_add (SvSTATE (coro_current));
3376 }
3377
3378 EXTEND (SP, 2);
3379 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3380 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3381
3382 if (expect_false (current == self))
3383 coro_times_sub (SvSTATE (coro_current));
3384}
3084 3385
3085MODULE = Coro::State PACKAGE = Coro 3386MODULE = Coro::State PACKAGE = Coro
3086 3387
3087BOOT: 3388BOOT:
3088{ 3389{
3089 int i;
3090
3091 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3390 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3092 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3391 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3093 cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); 3392 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3094 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD); 3393 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3095 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3394 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3096 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3395 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3097 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3396 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3098 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3397 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3398 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3099 3399
3100 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3400 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3101 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3401 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3102 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3402 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3103 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3403 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
3104 3404
3105 coro_stash = gv_stashpv ("Coro", TRUE); 3405 coro_stash = gv_stashpv ("Coro", TRUE);
3106 3406
3107 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3407 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3108 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3408 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3109 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3409 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3110 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3410 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3111 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3411 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3112 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3412 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3113
3114 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3115 coro_ready[i] = newAV ();
3116 3413
3117 { 3414 {
3118 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3415 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3119 3416
3120 coroapi.schedule = api_schedule; 3417 coroapi.schedule = api_schedule;
3161cede_notself (...) 3458cede_notself (...)
3162 CODE: 3459 CODE:
3163 CORO_EXECUTE_SLF_XS (slf_init_cede_notself); 3460 CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3164 3461
3165void 3462void
3166_cancel (Coro::State self)
3167 CODE:
3168 coro_state_destroy (aTHX_ self);
3169 coro_call_on_destroy (aTHX_ self);
3170
3171void
3172_set_current (SV *current) 3463_set_current (SV *current)
3173 PROTOTYPE: $ 3464 PROTOTYPE: $
3174 CODE: 3465 CODE:
3175 SvREFCNT_dec (SvRV (coro_current)); 3466 SvREFCNT_dec (SvRV (coro_current));
3176 SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); 3467 SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
3178void 3469void
3179_set_readyhook (SV *hook) 3470_set_readyhook (SV *hook)
3180 PROTOTYPE: $ 3471 PROTOTYPE: $
3181 CODE: 3472 CODE:
3182 SvREFCNT_dec (coro_readyhook); 3473 SvREFCNT_dec (coro_readyhook);
3474 SvGETMAGIC (hook);
3183 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3475 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
3184 3476
3185int 3477int
3186prio (Coro::State coro, int newprio = 0) 3478prio (Coro::State coro, int newprio = 0)
3187 PROTOTYPE: $;$ 3479 PROTOTYPE: $;$
3194 if (items > 1) 3486 if (items > 1)
3195 { 3487 {
3196 if (ix) 3488 if (ix)
3197 newprio = coro->prio - newprio; 3489 newprio = coro->prio - newprio;
3198 3490
3199 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3491 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3200 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3492 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3201 3493
3202 coro->prio = newprio; 3494 coro->prio = newprio;
3203 } 3495 }
3204} 3496}
3205 OUTPUT: 3497 OUTPUT:
3218 PROTOTYPE: 3510 PROTOTYPE:
3219 CODE: 3511 CODE:
3220 RETVAL = coro_nready; 3512 RETVAL = coro_nready;
3221 OUTPUT: 3513 OUTPUT:
3222 RETVAL 3514 RETVAL
3515
3516void
3517suspend (Coro::State self)
3518 PROTOTYPE: $
3519 CODE:
3520 self->flags |= CF_SUSPENDED;
3521
3522void
3523resume (Coro::State self)
3524 PROTOTYPE: $
3525 CODE:
3526 self->flags &= ~CF_SUSPENDED;
3223 3527
3224void 3528void
3225_pool_handler (...) 3529_pool_handler (...)
3226 CODE: 3530 CODE:
3227 CORO_EXECUTE_SLF_XS (slf_init_pool_handler); 3531 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3282rouse_wait (...) 3586rouse_wait (...)
3283 PROTOTYPE: ;$ 3587 PROTOTYPE: ;$
3284 PPCODE: 3588 PPCODE:
3285 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 3589 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3286 3590
3591void
3592on_enter (SV *block)
3593 ALIAS:
3594 on_leave = 1
3595 PROTOTYPE: &
3596 CODE:
3597{
3598 struct coro *coro = SvSTATE_current;
3599 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
3600
3601 block = (SV *)coro_sv_2cv (aTHX_ block);
3602
3603 if (!*avp)
3604 *avp = newAV ();
3605
3606 av_push (*avp, SvREFCNT_inc (block));
3607
3608 if (!ix)
3609 on_enterleave_call (aTHX_ block);
3610
3611 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
3612 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
3613 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
3614}
3615
3287 3616
3288MODULE = Coro::State PACKAGE = PerlIO::cede 3617MODULE = Coro::State PACKAGE = PerlIO::cede
3289 3618
3290BOOT: 3619BOOT:
3291 PerlIO_define_layer (aTHX_ &PerlIO_cede); 3620 PerlIO_define_layer (aTHX_ &PerlIO_cede);
3294MODULE = Coro::State PACKAGE = Coro::Semaphore 3623MODULE = Coro::State PACKAGE = Coro::Semaphore
3295 3624
3296SV * 3625SV *
3297new (SV *klass, SV *count = 0) 3626new (SV *klass, SV *count = 0)
3298 CODE: 3627 CODE:
3628{
3629 int semcnt = 1;
3630
3631 if (count)
3632 {
3633 SvGETMAGIC (count);
3634
3635 if (SvOK (count))
3636 semcnt = SvIV (count);
3637 }
3638
3299 RETVAL = sv_bless ( 3639 RETVAL = sv_bless (
3300 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 3640 coro_waitarray_new (aTHX_ semcnt),
3301 GvSTASH (CvGV (cv)) 3641 GvSTASH (CvGV (cv))
3302 ); 3642 );
3643}
3303 OUTPUT: 3644 OUTPUT:
3304 RETVAL 3645 RETVAL
3305 3646
3306# helper for Coro::Channel 3647# helper for Coro::Channel and others
3307SV * 3648SV *
3308_alloc (int count) 3649_alloc (int count)
3309 CODE: 3650 CODE:
3310 RETVAL = coro_waitarray_new (aTHX_ count); 3651 RETVAL = coro_waitarray_new (aTHX_ count);
3311 OUTPUT: 3652 OUTPUT:
3369 for (i = 1; i <= wcount; ++i) 3710 for (i = 1; i <= wcount; ++i)
3370 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 3711 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3371 } 3712 }
3372} 3713}
3373 3714
3715MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
3716
3717void
3718_may_delete (SV *sem, int count, int extra_refs)
3719 PPCODE:
3720{
3721 AV *av = (AV *)SvRV (sem);
3722
3723 if (SvREFCNT ((SV *)av) == 1 + extra_refs
3724 && AvFILLp (av) == 0 /* no waiters, just count */
3725 && SvIV (AvARRAY (av)[0]) == count)
3726 XSRETURN_YES;
3727
3728 XSRETURN_NO;
3729}
3730
3374MODULE = Coro::State PACKAGE = Coro::Signal 3731MODULE = Coro::State PACKAGE = Coro::Signal
3375 3732
3376SV * 3733SV *
3377new (SV *klass) 3734new (SV *klass)
3378 CODE: 3735 CODE:

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