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Comparing Coro/Coro/State.xs (file contents):
Revision 1.296 by root, Tue Nov 18 10:39:52 2008 UTC vs.
Revision 1.347 by root, Wed Jun 10 00:00:02 2009 UTC

… …
16 16
17#ifdef WIN32 17#ifdef WIN32
18# undef setjmp 18# undef setjmp
19# undef longjmp 19# undef longjmp
20# undef _exit 20# undef _exit
21# define setjmp _setjmp // deep magic, don't ask 21# define setjmp _setjmp /* deep magic */
22#else 22#else
23# include <inttypes.h> /* most portable stdint.h */ 23# include <inttypes.h> /* most portable stdint.h */
24#endif 24#endif
25 25
26#ifdef HAVE_MMAP 26#ifdef HAVE_MMAP
… …
55 55
56#define PERL_VERSION_ATLEAST(a,b,c) \ 56#define PERL_VERSION_ATLEAST(a,b,c) \
57 (PERL_REVISION > (a) \ 57 (PERL_REVISION > (a) \
58 || (PERL_REVISION == (a) \ 58 || (PERL_REVISION == (a) \
59 && (PERL_VERSION > (b) \ 59 && (PERL_VERSION > (b) \
60 || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) 60 || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61 61
62#if !PERL_VERSION_ATLEAST (5,6,0) 62#if !PERL_VERSION_ATLEAST (5,6,0)
63# ifndef PL_ppaddr 63# ifndef PL_ppaddr
64# define PL_ppaddr ppaddr 64# define PL_ppaddr ppaddr
65# endif 65# endif
… …
98# define newSV(l) NEWSV(0,l) 98# define newSV(l) NEWSV(0,l)
99#endif 99#endif
100#ifndef CvISXSUB_on 100#ifndef CvISXSUB_on
101# define CvISXSUB_on(cv) (void)cv 101# define CvISXSUB_on(cv) (void)cv
102#endif 102#endif
103#ifndef CvISXSUB
104# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105#endif
106#ifndef Newx
107# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
108#endif
103 109
104/* 5.8.7 */ 110/* 5.8.7 */
105#ifndef SvRV_set 111#ifndef SvRV_set
106# define SvRV_set(s,v) SvRV(s) = (v) 112# define SvRV_set(s,v) SvRV(s) = (v)
107#endif 113#endif
… …
127#else 133#else
128# define dSTACKLEVEL volatile void *stacklevel 134# define dSTACKLEVEL volatile void *stacklevel
129# define STACKLEVEL ((void *)&stacklevel) 135# define STACKLEVEL ((void *)&stacklevel)
130#endif 136#endif
131 137
132#define IN_DESTRUCT (PL_main_cv == Nullcv) 138#define IN_DESTRUCT PL_dirty
133 139
134#if __GNUC__ >= 3 140#if __GNUC__ >= 3
135# define attribute(x) __attribute__(x) 141# define attribute(x) __attribute__(x)
136# define expect(expr,value) __builtin_expect ((expr),(value)) 142# define expect(expr,value) __builtin_expect ((expr),(value))
137# define INLINE static inline 143# define INLINE static inline
… …
145#define expect_true(expr) expect ((expr) != 0, 1) 151#define expect_true(expr) expect ((expr) != 0, 1)
146 152
147#define NOINLINE attribute ((noinline)) 153#define NOINLINE attribute ((noinline))
148 154
149#include "CoroAPI.h" 155#include "CoroAPI.h"
156#define GCoroAPI (&coroapi) /* very sneaky */
150 157
151#ifdef USE_ITHREADS 158#ifdef USE_ITHREADS
152# if CORO_PTHREAD 159# if CORO_PTHREAD
153static void *coro_thx; 160static void *coro_thx;
154# endif 161# endif
… …
166static AV *main_mainstack; /* used to differentiate between $main and others */ 173static AV *main_mainstack; /* used to differentiate between $main and others */
167static JMPENV *main_top_env; 174static JMPENV *main_top_env;
168static HV *coro_state_stash, *coro_stash; 175static HV *coro_state_stash, *coro_stash;
169static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 176static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
170 177
178static AV *av_destroy; /* destruction queue */
179static SV *sv_manager; /* the manager coro */
180static SV *sv_idle; /* $Coro::idle */
181
171static GV *irsgv; /* $/ */ 182static GV *irsgv; /* $/ */
172static GV *stdoutgv; /* *STDOUT */ 183static GV *stdoutgv; /* *STDOUT */
173static SV *rv_diehook; 184static SV *rv_diehook;
174static SV *rv_warnhook; 185static SV *rv_warnhook;
175static HV *hv_sig; /* %SIG */ 186static HV *hv_sig; /* %SIG */
176 187
177/* async_pool helper stuff */ 188/* async_pool helper stuff */
178static SV *sv_pool_rss; 189static SV *sv_pool_rss;
179static SV *sv_pool_size; 190static SV *sv_pool_size;
191static SV *sv_async_pool_idle; /* description string */
180static AV *av_async_pool; 192static AV *av_async_pool; /* idle pool */
193static SV *sv_Coro; /* class string */
194static CV *cv_pool_handler;
195static CV *cv_coro_state_new;
181 196
182/* Coro::AnyEvent */ 197/* Coro::AnyEvent */
183static SV *sv_activity; 198static SV *sv_activity;
184 199
185static struct coro_cctx *cctx_first; 200static struct coro_cctx *cctx_first;
… …
214 int valgrind_id; 229 int valgrind_id;
215#endif 230#endif
216 unsigned char flags; 231 unsigned char flags;
217} coro_cctx; 232} coro_cctx;
218 233
234coro_cctx *cctx_current; /* the currently running cctx */
235
236/*****************************************************************************/
237
219enum { 238enum {
220 CF_RUNNING = 0x0001, /* coroutine is running */ 239 CF_RUNNING = 0x0001, /* coroutine is running */
221 CF_READY = 0x0002, /* coroutine is ready */ 240 CF_READY = 0x0002, /* coroutine is ready */
222 CF_NEW = 0x0004, /* has never been switched to */ 241 CF_NEW = 0x0004, /* has never been switched to */
223 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 242 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
243 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
224}; 244};
225 245
226/* the structure where most of the perl state is stored, overlaid on the cxstack */ 246/* the structure where most of the perl state is stored, overlaid on the cxstack */
227typedef struct 247typedef struct
228{ 248{
229 SV *defsv; 249 SV *defsv;
230 AV *defav; 250 AV *defav;
231 SV *errsv; 251 SV *errsv;
232 SV *irsgv; 252 SV *irsgv;
253 HV *hinthv;
233#define VAR(name,type) type name; 254#define VAR(name,type) type name;
234# include "state.h" 255# include "state.h"
235#undef VAR 256#undef VAR
236} perl_slots; 257} perl_slots;
237 258
… …
240/* this is a structure representing a perl-level coroutine */ 261/* this is a structure representing a perl-level coroutine */
241struct coro { 262struct coro {
242 /* the C coroutine allocated to this perl coroutine, if any */ 263 /* the C coroutine allocated to this perl coroutine, if any */
243 coro_cctx *cctx; 264 coro_cctx *cctx;
244 265
266 /* ready queue */
267 struct coro *next_ready;
268
245 /* state data */ 269 /* state data */
246 struct CoroSLF slf_frame; /* saved slf frame */ 270 struct CoroSLF slf_frame; /* saved slf frame */
247 AV *mainstack; 271 AV *mainstack;
248 perl_slots *slot; /* basically the saved sp */ 272 perl_slots *slot; /* basically the saved sp */
249 273
274 CV *startcv; /* the CV to execute */
250 AV *args; /* data associated with this coroutine (initial args) */ 275 AV *args; /* data associated with this coroutine (initial args) */
251 int refcnt; /* coroutines are refcounted, yes */ 276 int refcnt; /* coroutines are refcounted, yes */
252 int flags; /* CF_ flags */ 277 int flags; /* CF_ flags */
253 HV *hv; /* the perl hash associated with this coro, if any */ 278 HV *hv; /* the perl hash associated with this coro, if any */
254 void (*on_destroy)(pTHX_ struct coro *coro); 279 void (*on_destroy)(pTHX_ struct coro *coro);
255 280
256 /* statistics */ 281 /* statistics */
257 int usecount; /* number of transfers to this coro */ 282 int usecount; /* number of transfers to this coro */
258 283
259 /* coro process data */ 284 /* coro process data */
260 int prio; 285 int prio;
261 SV *throw; /* exception to be thrown */ 286 SV *except; /* exception to be thrown */
287 SV *rouse_cb;
262 288
263 /* async_pool */ 289 /* async_pool */
264 SV *saved_deffh; 290 SV *saved_deffh;
291 SV *invoke_cb;
292 AV *invoke_av;
293
294 /* on_enter/on_leave */
295 AV *on_enter;
296 AV *on_leave;
265 297
266 /* linked list */ 298 /* linked list */
267 struct coro *next, *prev; 299 struct coro *next, *prev;
268}; 300};
269 301
… …
272 304
273/* the following variables are effectively part of the perl context */ 305/* the following variables are effectively part of the perl context */
274/* and get copied between struct coro and these variables */ 306/* and get copied between struct coro and these variables */
275/* the mainr easonw e don't support windows process emulation */ 307/* the mainr easonw e don't support windows process emulation */
276static struct CoroSLF slf_frame; /* the current slf frame */ 308static struct CoroSLF slf_frame; /* the current slf frame */
277static SV *coro_throw;
278 309
279/** Coro ********************************************************************/ 310/** Coro ********************************************************************/
280 311
281#define PRIO_MAX 3 312#define PRIO_MAX 3
282#define PRIO_HIGH 1 313#define PRIO_HIGH 1
… …
286#define PRIO_MIN -4 317#define PRIO_MIN -4
287 318
288/* for Coro.pm */ 319/* for Coro.pm */
289static SV *coro_current; 320static SV *coro_current;
290static SV *coro_readyhook; 321static SV *coro_readyhook;
291static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 322static struct coro *coro_ready [PRIO_MAX - PRIO_MIN + 1][2]; /* head|tail */
323static CV *cv_coro_run, *cv_coro_terminate;
292static struct coro *coro_first; 324static struct coro *coro_first;
293#define coro_nready coroapi.nready 325#define coro_nready coroapi.nready
294 326
295/** lowlevel stuff **********************************************************/ 327/** lowlevel stuff **********************************************************/
296 328
… …
322 get_hv (name, create); 354 get_hv (name, create);
323#endif 355#endif
324 return get_hv (name, create); 356 return get_hv (name, create);
325} 357}
326 358
359/* may croak */
360INLINE CV *
361coro_sv_2cv (pTHX_ SV *sv)
362{
363 HV *st;
364 GV *gvp;
365 CV *cv = sv_2cv (sv, &st, &gvp, 0);
366
367 if (!cv)
368 croak ("code reference expected");
369
370 return cv;
371}
372
373/*****************************************************************************/
374/* magic glue */
375
376#define CORO_MAGIC_type_cv 26
377#define CORO_MAGIC_type_state PERL_MAGIC_ext
378
379#define CORO_MAGIC_NN(sv, type) \
380 (expect_true (SvMAGIC (sv)->mg_type == type) \
381 ? SvMAGIC (sv) \
382 : mg_find (sv, type))
383
384#define CORO_MAGIC(sv, type) \
385 (expect_true (SvMAGIC (sv)) \
386 ? CORO_MAGIC_NN (sv, type) \
387 : 0)
388
389#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
390#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
391
392INLINE struct coro *
393SvSTATE_ (pTHX_ SV *coro)
394{
395 HV *stash;
396 MAGIC *mg;
397
398 if (SvROK (coro))
399 coro = SvRV (coro);
400
401 if (expect_false (SvTYPE (coro) != SVt_PVHV))
402 croak ("Coro::State object required");
403
404 stash = SvSTASH (coro);
405 if (expect_false (stash != coro_stash && stash != coro_state_stash))
406 {
407 /* very slow, but rare, check */
408 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
409 croak ("Coro::State object required");
410 }
411
412 mg = CORO_MAGIC_state (coro);
413 return (struct coro *)mg->mg_ptr;
414}
415
416#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
417
418/* faster than SvSTATE, but expects a coroutine hv */
419#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
420#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
421
422/*****************************************************************************/
423/* padlist management and caching */
424
327static AV * 425static AV *
328coro_clone_padlist (pTHX_ CV *cv) 426coro_derive_padlist (pTHX_ CV *cv)
329{ 427{
330 AV *padlist = CvPADLIST (cv); 428 AV *padlist = CvPADLIST (cv);
331 AV *newpadlist, *newpad; 429 AV *newpadlist, *newpad;
332 430
333 newpadlist = newAV (); 431 newpadlist = newAV ();
… …
338 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 436 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
339#endif 437#endif
340 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 438 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
341 --AvFILLp (padlist); 439 --AvFILLp (padlist);
342 440
343 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); 441 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
344 av_store (newpadlist, 1, (SV *)newpad); 442 av_store (newpadlist, 1, (SV *)newpad);
345 443
346 return newpadlist; 444 return newpadlist;
347} 445}
348 446
349static void 447static void
350free_padlist (pTHX_ AV *padlist) 448free_padlist (pTHX_ AV *padlist)
351{ 449{
352 /* may be during global destruction */ 450 /* may be during global destruction */
353 if (SvREFCNT (padlist)) 451 if (!IN_DESTRUCT)
354 { 452 {
355 I32 i = AvFILLp (padlist); 453 I32 i = AvFILLp (padlist);
356 while (i >= 0) 454
455 while (i > 0) /* special-case index 0 */
357 { 456 {
358 SV **svp = av_fetch (padlist, i--, FALSE); 457 /* we try to be extra-careful here */
359 if (svp) 458 AV *av = (AV *)AvARRAY (padlist)[i--];
360 { 459 I32 j = AvFILLp (av);
361 SV *sv; 460
362 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) 461 while (j >= 0)
462 SvREFCNT_dec (AvARRAY (av)[j--]);
463
464 AvFILLp (av) = -1;
363 SvREFCNT_dec (sv); 465 SvREFCNT_dec (av);
364
365 SvREFCNT_dec (*svp);
366 }
367 } 466 }
368 467
468 SvREFCNT_dec (AvARRAY (padlist)[0]);
469
470 AvFILLp (padlist) = -1;
369 SvREFCNT_dec ((SV*)padlist); 471 SvREFCNT_dec ((SV*)padlist);
370 } 472 }
371} 473}
372 474
373static int 475static int
… …
382 484
383 SvREFCNT_dec (av); /* sv_magicext increased the refcount */ 485 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
384 486
385 return 0; 487 return 0;
386} 488}
387
388#define CORO_MAGIC_type_cv 26
389#define CORO_MAGIC_type_state PERL_MAGIC_ext
390 489
391static MGVTBL coro_cv_vtbl = { 490static MGVTBL coro_cv_vtbl = {
392 0, 0, 0, 0, 491 0, 0, 0, 0,
393 coro_cv_free 492 coro_cv_free
394}; 493};
395
396#define CORO_MAGIC_NN(sv, type) \
397 (expect_true (SvMAGIC (sv)->mg_type == type) \
398 ? SvMAGIC (sv) \
399 : mg_find (sv, type))
400
401#define CORO_MAGIC(sv, type) \
402 (expect_true (SvMAGIC (sv)) \
403 ? CORO_MAGIC_NN (sv, type) \
404 : 0)
405
406#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
407#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
408
409INLINE struct coro *
410SvSTATE_ (pTHX_ SV *coro)
411{
412 HV *stash;
413 MAGIC *mg;
414
415 if (SvROK (coro))
416 coro = SvRV (coro);
417
418 if (expect_false (SvTYPE (coro) != SVt_PVHV))
419 croak ("Coro::State object required");
420
421 stash = SvSTASH (coro);
422 if (expect_false (stash != coro_stash && stash != coro_state_stash))
423 {
424 /* very slow, but rare, check */
425 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
426 croak ("Coro::State object required");
427 }
428
429 mg = CORO_MAGIC_state (coro);
430 return (struct coro *)mg->mg_ptr;
431}
432
433#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
434
435/* faster than SvSTATE, but expects a coroutine hv */
436#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
437#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
438 494
439/* the next two functions merely cache the padlists */ 495/* the next two functions merely cache the padlists */
440static void 496static void
441get_padlist (pTHX_ CV *cv) 497get_padlist (pTHX_ CV *cv)
442{ 498{
… …
448 else 504 else
449 { 505 {
450#if CORO_PREFER_PERL_FUNCTIONS 506#if CORO_PREFER_PERL_FUNCTIONS
451 /* this is probably cleaner? but also slower! */ 507 /* this is probably cleaner? but also slower! */
452 /* in practise, it seems to be less stable */ 508 /* in practise, it seems to be less stable */
453 CV *cp = Perl_cv_clone (cv); 509 CV *cp = Perl_cv_clone (aTHX_ cv);
454 CvPADLIST (cv) = CvPADLIST (cp); 510 CvPADLIST (cv) = CvPADLIST (cp);
455 CvPADLIST (cp) = 0; 511 CvPADLIST (cp) = 0;
456 SvREFCNT_dec (cp); 512 SvREFCNT_dec (cp);
457#else 513#else
458 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 514 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
459#endif 515#endif
460 } 516 }
461} 517}
462 518
463static void 519static void
… …
470 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 526 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
471 527
472 av = (AV *)mg->mg_obj; 528 av = (AV *)mg->mg_obj;
473 529
474 if (expect_false (AvFILLp (av) >= AvMAX (av))) 530 if (expect_false (AvFILLp (av) >= AvMAX (av)))
475 av_extend (av, AvMAX (av) + 1); 531 av_extend (av, AvFILLp (av) + 1);
476 532
477 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 533 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
478} 534}
479 535
480/** load & save, init *******************************************************/ 536/** load & save, init *******************************************************/
537
538static void
539on_enterleave_call (pTHX_ SV *cb);
481 540
482static void 541static void
483load_perl (pTHX_ Coro__State c) 542load_perl (pTHX_ Coro__State c)
484{ 543{
485 perl_slots *slot = c->slot; 544 perl_slots *slot = c->slot;
486 c->slot = 0; 545 c->slot = 0;
487 546
488 PL_mainstack = c->mainstack; 547 PL_mainstack = c->mainstack;
489 548
490 GvSV (PL_defgv) = slot->defsv; 549 GvSV (PL_defgv) = slot->defsv;
491 GvAV (PL_defgv) = slot->defav; 550 GvAV (PL_defgv) = slot->defav;
492 GvSV (PL_errgv) = slot->errsv; 551 GvSV (PL_errgv) = slot->errsv;
493 GvSV (irsgv) = slot->irsgv; 552 GvSV (irsgv) = slot->irsgv;
553 GvHV (PL_hintgv) = slot->hinthv;
494 554
495 #define VAR(name,type) PL_ ## name = slot->name; 555 #define VAR(name,type) PL_ ## name = slot->name;
496 # include "state.h" 556 # include "state.h"
497 #undef VAR 557 #undef VAR
498 558
… …
511 571
512 PUTBACK; 572 PUTBACK;
513 } 573 }
514 574
515 slf_frame = c->slf_frame; 575 slf_frame = c->slf_frame;
516 coro_throw = c->throw; 576 CORO_THROW = c->except;
577
578 if (expect_false (c->on_enter))
579 {
580 int i;
581
582 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
583 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
584 }
517} 585}
518 586
519static void 587static void
520save_perl (pTHX_ Coro__State c) 588save_perl (pTHX_ Coro__State c)
521{ 589{
522 c->throw = coro_throw; 590 if (expect_false (c->on_leave))
591 {
592 int i;
593
594 for (i = AvFILLp (c->on_leave); i >= 0; --i)
595 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
596 }
597
598 c->except = CORO_THROW;
523 c->slf_frame = slf_frame; 599 c->slf_frame = slf_frame;
524 600
525 { 601 {
526 dSP; 602 dSP;
527 I32 cxix = cxstack_ix; 603 I32 cxix = cxstack_ix;
… …
584 c->mainstack = PL_mainstack; 660 c->mainstack = PL_mainstack;
585 661
586 { 662 {
587 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 663 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
588 664
589 slot->defav = GvAV (PL_defgv); 665 slot->defav = GvAV (PL_defgv);
590 slot->defsv = DEFSV; 666 slot->defsv = DEFSV;
591 slot->errsv = ERRSV; 667 slot->errsv = ERRSV;
592 slot->irsgv = GvSV (irsgv); 668 slot->irsgv = GvSV (irsgv);
669 slot->hinthv = GvHV (PL_hintgv);
593 670
594 #define VAR(name,type) slot->name = PL_ ## name; 671 #define VAR(name,type) slot->name = PL_ ## name;
595 # include "state.h" 672 # include "state.h"
596 #undef VAR 673 #undef VAR
597 } 674 }
… …
602 * of perl.c:init_stacks, except that it uses less memory 679 * of perl.c:init_stacks, except that it uses less memory
603 * on the (sometimes correct) assumption that coroutines do 680 * on the (sometimes correct) assumption that coroutines do
604 * not usually need a lot of stackspace. 681 * not usually need a lot of stackspace.
605 */ 682 */
606#if CORO_PREFER_PERL_FUNCTIONS 683#if CORO_PREFER_PERL_FUNCTIONS
607# define coro_init_stacks init_stacks 684# define coro_init_stacks(thx) init_stacks ()
608#else 685#else
609static void 686static void
610coro_init_stacks (pTHX) 687coro_init_stacks (pTHX)
611{ 688{
612 PL_curstackinfo = new_stackinfo(32, 8); 689 PL_curstackinfo = new_stackinfo(32, 8);
… …
675#if !PERL_VERSION_ATLEAST (5,10,0) 752#if !PERL_VERSION_ATLEAST (5,10,0)
676 Safefree (PL_retstack); 753 Safefree (PL_retstack);
677#endif 754#endif
678} 755}
679 756
757#define CORO_RSS \
758 rss += sizeof (SYM (curstackinfo)); \
759 rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
760 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
761 rss += SYM (tmps_max) * sizeof (SV *); \
762 rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
763 rss += SYM (scopestack_max) * sizeof (I32); \
764 rss += SYM (savestack_max) * sizeof (ANY);
765
680static size_t 766static size_t
681coro_rss (pTHX_ struct coro *coro) 767coro_rss (pTHX_ struct coro *coro)
682{ 768{
683 size_t rss = sizeof (*coro); 769 size_t rss = sizeof (*coro);
684 770
685 if (coro->mainstack) 771 if (coro->mainstack)
686 { 772 {
687 perl_slots tmp_slot;
688 perl_slots *slot;
689
690 if (coro->flags & CF_RUNNING) 773 if (coro->flags & CF_RUNNING)
691 { 774 {
692 slot = &tmp_slot; 775 #define SYM(sym) PL_ ## sym
693 776 CORO_RSS;
694 #define VAR(name,type) slot->name = PL_ ## name;
695 # include "state.h"
696 #undef VAR 777 #undef SYM
697 } 778 }
698 else 779 else
699 slot = coro->slot;
700
701 if (slot)
702 { 780 {
703 rss += sizeof (slot->curstackinfo); 781 #define SYM(sym) coro->slot->sym
704 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); 782 CORO_RSS;
705 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); 783 #undef SYM
706 rss += slot->tmps_max * sizeof (SV *);
707 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
708 rss += slot->scopestack_max * sizeof (I32);
709 rss += slot->savestack_max * sizeof (ANY);
710
711#if !PERL_VERSION_ATLEAST (5,10,0)
712 rss += slot->retstack_max * sizeof (OP *);
713#endif
714 } 784 }
715 } 785 }
716 786
717 return rss; 787 return rss;
718} 788}
… …
731#endif 801#endif
732 802
733/* 803/*
734 * This overrides the default magic get method of %SIG elements. 804 * This overrides the default magic get method of %SIG elements.
735 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 805 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
736 * and instead of tryign to save and restore the hash elements, we just provide 806 * and instead of trying to save and restore the hash elements, we just provide
737 * readback here. 807 * readback here.
738 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
739 * not expecting this to actually change the hook. This is a potential problem
740 * when a schedule happens then, but we ignore this.
741 */ 808 */
742static int 809static int
743coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 810coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
744{ 811{
745 const char *s = MgPV_nolen_const (mg); 812 const char *s = MgPV_nolen_const (mg);
… …
798 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 865 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
799 866
800 if (svp) 867 if (svp)
801 { 868 {
802 SV *old = *svp; 869 SV *old = *svp;
803 *svp = newSVsv (sv); 870 *svp = SvOK (sv) ? newSVsv (sv) : 0;
804 SvREFCNT_dec (old); 871 SvREFCNT_dec (old);
805 return 0; 872 return 0;
806 } 873 }
807 } 874 }
808 875
… …
818 885
819static int 886static int
820slf_check_nop (pTHX_ struct CoroSLF *frame) 887slf_check_nop (pTHX_ struct CoroSLF *frame)
821{ 888{
822 return 0; 889 return 0;
890}
891
892static int
893slf_check_repeat (pTHX_ struct CoroSLF *frame)
894{
895 return 1;
823} 896}
824 897
825static UNOP coro_setup_op; 898static UNOP coro_setup_op;
826 899
827static void NOINLINE /* noinline to keep it out of the transfer fast path */ 900static void NOINLINE /* noinline to keep it out of the transfer fast path */
… …
834 907
835 PL_runops = RUNOPS_DEFAULT; 908 PL_runops = RUNOPS_DEFAULT;
836 PL_curcop = &PL_compiling; 909 PL_curcop = &PL_compiling;
837 PL_in_eval = EVAL_NULL; 910 PL_in_eval = EVAL_NULL;
838 PL_comppad = 0; 911 PL_comppad = 0;
912 PL_comppad_name = 0;
913 PL_comppad_name_fill = 0;
914 PL_comppad_name_floor = 0;
839 PL_curpm = 0; 915 PL_curpm = 0;
840 PL_curpad = 0; 916 PL_curpad = 0;
841 PL_localizing = 0; 917 PL_localizing = 0;
842 PL_dirty = 0; 918 PL_dirty = 0;
843 PL_restartop = 0; 919 PL_restartop = 0;
844#if PERL_VERSION_ATLEAST (5,10,0) 920#if PERL_VERSION_ATLEAST (5,10,0)
845 PL_parser = 0; 921 PL_parser = 0;
846#endif 922#endif
923 PL_hints = 0;
847 924
848 /* recreate the die/warn hooks */ 925 /* recreate the die/warn hooks */
849 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 926 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
850 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 927 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
851 928
852 GvSV (PL_defgv) = newSV (0); 929 GvSV (PL_defgv) = newSV (0);
853 GvAV (PL_defgv) = coro->args; coro->args = 0; 930 GvAV (PL_defgv) = coro->args; coro->args = 0;
854 GvSV (PL_errgv) = newSV (0); 931 GvSV (PL_errgv) = newSV (0);
855 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 932 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
933 GvHV (PL_hintgv) = 0;
856 PL_rs = newSVsv (GvSV (irsgv)); 934 PL_rs = newSVsv (GvSV (irsgv));
857 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 935 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
858 936
859 { 937 {
860 dSP; 938 dSP;
861 UNOP myop; 939 UNOP myop;
862 940
863 Zero (&myop, 1, UNOP); 941 Zero (&myop, 1, UNOP);
864 myop.op_next = Nullop; 942 myop.op_next = Nullop;
943 myop.op_type = OP_ENTERSUB;
865 myop.op_flags = OPf_WANT_VOID; 944 myop.op_flags = OPf_WANT_VOID;
866 945
867 PUSHMARK (SP); 946 PUSHMARK (SP);
868 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); 947 PUSHs ((SV *)coro->startcv);
869 PUTBACK; 948 PUTBACK;
870 PL_op = (OP *)&myop; 949 PL_op = (OP *)&myop;
871 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 950 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
872 SPAGAIN;
873 } 951 }
874 952
875 /* this newly created coroutine might be run on an existing cctx which most 953 /* this newly created coroutine might be run on an existing cctx which most
876 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 954 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
877 */ 955 */
878 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 956 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
879 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 957 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
880 958
881 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 959 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
882 coro_setup_op.op_next = PL_op; 960 coro_setup_op.op_next = PL_op;
883 coro_setup_op.op_type = OP_CUSTOM; 961 coro_setup_op.op_type = OP_ENTERSUB;
884 coro_setup_op.op_ppaddr = pp_slf; 962 coro_setup_op.op_ppaddr = pp_slf;
885 /* no flags required, as an init function won't be called */ 963 /* no flags etc. required, as an init function won't be called */
886 964
887 PL_op = (OP *)&coro_setup_op; 965 PL_op = (OP *)&coro_setup_op;
888 966
889 /* copy throw, in case it was set before coro_setup */ 967 /* copy throw, in case it was set before coro_setup */
890 coro_throw = coro->throw; 968 CORO_THROW = coro->except;
891} 969}
892 970
893static void 971static void
894coro_destruct (pTHX_ struct coro *coro) 972coro_unwind_stacks (pTHX)
895{ 973{
896 if (!IN_DESTRUCT) 974 if (!IN_DESTRUCT)
897 { 975 {
898 /* restore all saved variables and stuff */ 976 /* restore all saved variables and stuff */
899 LEAVE_SCOPE (0); 977 LEAVE_SCOPE (0);
… …
907 POPSTACK_TO (PL_mainstack); 985 POPSTACK_TO (PL_mainstack);
908 986
909 /* unwind main stack */ 987 /* unwind main stack */
910 dounwind (-1); 988 dounwind (-1);
911 } 989 }
990}
991
992static void
993coro_destruct_perl (pTHX_ struct coro *coro)
994{
995 coro_unwind_stacks (aTHX);
912 996
913 SvREFCNT_dec (GvSV (PL_defgv)); 997 SvREFCNT_dec (GvSV (PL_defgv));
914 SvREFCNT_dec (GvAV (PL_defgv)); 998 SvREFCNT_dec (GvAV (PL_defgv));
915 SvREFCNT_dec (GvSV (PL_errgv)); 999 SvREFCNT_dec (GvSV (PL_errgv));
916 SvREFCNT_dec (PL_defoutgv); 1000 SvREFCNT_dec (PL_defoutgv);
917 SvREFCNT_dec (PL_rs); 1001 SvREFCNT_dec (PL_rs);
918 SvREFCNT_dec (GvSV (irsgv)); 1002 SvREFCNT_dec (GvSV (irsgv));
1003 SvREFCNT_dec (GvHV (PL_hintgv));
919 1004
920 SvREFCNT_dec (PL_diehook); 1005 SvREFCNT_dec (PL_diehook);
921 SvREFCNT_dec (PL_warnhook); 1006 SvREFCNT_dec (PL_warnhook);
922 1007
923 SvREFCNT_dec (coro->saved_deffh); 1008 SvREFCNT_dec (coro->saved_deffh);
924 SvREFCNT_dec (coro_throw); 1009 SvREFCNT_dec (coro->rouse_cb);
1010 SvREFCNT_dec (coro->invoke_cb);
1011 SvREFCNT_dec (coro->invoke_av);
925 1012
926 coro_destruct_stacks (aTHX); 1013 coro_destruct_stacks (aTHX);
927} 1014}
928 1015
929INLINE void 1016INLINE void
… …
939static int 1026static int
940runops_trace (pTHX) 1027runops_trace (pTHX)
941{ 1028{
942 COP *oldcop = 0; 1029 COP *oldcop = 0;
943 int oldcxix = -2; 1030 int oldcxix = -2;
944 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
945 coro_cctx *cctx = coro->cctx;
946 1031
947 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 1032 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
948 { 1033 {
949 PERL_ASYNC_CHECK (); 1034 PERL_ASYNC_CHECK ();
950 1035
951 if (cctx->flags & CC_TRACE_ALL) 1036 if (cctx_current->flags & CC_TRACE_ALL)
952 { 1037 {
953 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) 1038 if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
954 { 1039 {
955 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1040 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
956 SV **bot, **top; 1041 SV **bot, **top;
957 AV *av = newAV (); /* return values */ 1042 AV *av = newAV (); /* return values */
958 SV **cb; 1043 SV **cb;
… …
995 1080
996 if (PL_curcop != &PL_compiling) 1081 if (PL_curcop != &PL_compiling)
997 { 1082 {
998 SV **cb; 1083 SV **cb;
999 1084
1000 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 1085 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1001 { 1086 {
1002 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1087 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1003 1088
1004 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1089 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1005 { 1090 {
1006 runops_proc_t old_runops = PL_runops;
1007 dSP; 1091 dSP;
1008 GV *gv = CvGV (cx->blk_sub.cv); 1092 GV *gv = CvGV (cx->blk_sub.cv);
1009 SV *fullname = sv_2mortal (newSV (0)); 1093 SV *fullname = sv_2mortal (newSV (0));
1010 1094
1011 if (isGV (gv)) 1095 if (isGV (gv))
… …
1016 SAVETMPS; 1100 SAVETMPS;
1017 EXTEND (SP, 3); 1101 EXTEND (SP, 3);
1018 PUSHMARK (SP); 1102 PUSHMARK (SP);
1019 PUSHs (&PL_sv_yes); 1103 PUSHs (&PL_sv_yes);
1020 PUSHs (fullname); 1104 PUSHs (fullname);
1021 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); 1105 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1022 PUTBACK; 1106 PUTBACK;
1023 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); 1107 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
1024 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1108 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1025 SPAGAIN; 1109 SPAGAIN;
1026 FREETMPS; 1110 FREETMPS;
… …
1029 } 1113 }
1030 1114
1031 oldcxix = cxstack_ix; 1115 oldcxix = cxstack_ix;
1032 } 1116 }
1033 1117
1034 if (cctx->flags & CC_TRACE_LINE) 1118 if (cctx_current->flags & CC_TRACE_LINE)
1035 { 1119 {
1036 dSP; 1120 dSP;
1037 1121
1038 PL_runops = RUNOPS_DEFAULT; 1122 PL_runops = RUNOPS_DEFAULT;
1039 ENTER; 1123 ENTER;
… …
1058 1142
1059 TAINT_NOT; 1143 TAINT_NOT;
1060 return 0; 1144 return 0;
1061} 1145}
1062 1146
1063static struct coro_cctx *cctx_ssl_cctx;
1064static struct CoroSLF cctx_ssl_frame; 1147static struct CoroSLF cctx_ssl_frame;
1065 1148
1066static void 1149static void
1067slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) 1150slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1068{ 1151{
1069 ta->prev = (struct coro *)cctx_ssl_cctx;
1070 ta->next = 0; 1152 ta->prev = 0;
1071} 1153}
1072 1154
1073static int 1155static int
1074slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) 1156slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1075{ 1157{
… …
1078 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1160 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1079} 1161}
1080 1162
1081/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1163/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1082static void NOINLINE 1164static void NOINLINE
1083cctx_prepare (pTHX_ coro_cctx *cctx) 1165cctx_prepare (pTHX)
1084{ 1166{
1085 PL_top_env = &PL_start_env; 1167 PL_top_env = &PL_start_env;
1086 1168
1087 if (cctx->flags & CC_TRACE) 1169 if (cctx_current->flags & CC_TRACE)
1088 PL_runops = runops_trace; 1170 PL_runops = runops_trace;
1089 1171
1090 /* we already must be executing an SLF op, there is no other valid way 1172 /* we already must be executing an SLF op, there is no other valid way
1091 * that can lead to creation of a new cctx */ 1173 * that can lead to creation of a new cctx */
1092 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", 1174 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1093 slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); 1175 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1094 1176
1095 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ 1177 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1096 cctx_ssl_cctx = cctx;
1097 cctx_ssl_frame = slf_frame; 1178 cctx_ssl_frame = slf_frame;
1098 1179
1099 slf_frame.prepare = slf_prepare_set_stacklevel; 1180 slf_frame.prepare = slf_prepare_set_stacklevel;
1100 slf_frame.check = slf_check_set_stacklevel; 1181 slf_frame.check = slf_check_set_stacklevel;
1101} 1182}
… …
1124 /* normally we would need to skip the entersub here */ 1205 /* normally we would need to skip the entersub here */
1125 /* not doing so will re-execute it, which is exactly what we want */ 1206 /* not doing so will re-execute it, which is exactly what we want */
1126 /* PL_nop = PL_nop->op_next */ 1207 /* PL_nop = PL_nop->op_next */
1127 1208
1128 /* inject a fake subroutine call to cctx_init */ 1209 /* inject a fake subroutine call to cctx_init */
1129 cctx_prepare (aTHX_ (coro_cctx *)arg); 1210 cctx_prepare (aTHX);
1130 1211
1131 /* cctx_run is the alternative tail of transfer() */ 1212 /* cctx_run is the alternative tail of transfer() */
1132 transfer_tail (aTHX); 1213 transfer_tail (aTHX);
1133 1214
1134 /* somebody or something will hit me for both perl_run and PL_restartop */ 1215 /* somebody or something will hit me for both perl_run and PL_restartop */
1135 PL_restartop = PL_op; 1216 PL_restartop = PL_op;
1136 perl_run (PL_curinterp); 1217 perl_run (PL_curinterp);
1218 /*
1219 * Unfortunately, there is no way to get at the return values of the
1220 * coro body here, as perl_run destroys these
1221 */
1137 1222
1138 /* 1223 /*
1139 * If perl-run returns we assume exit() was being called or the coro 1224 * If perl-run returns we assume exit() was being called or the coro
1140 * fell off the end, which seems to be the only valid (non-bug) 1225 * fell off the end, which seems to be the only valid (non-bug)
1141 * reason for perl_run to return. We try to exit by jumping to the 1226 * reason for perl_run to return. We try to exit by jumping to the
1142 * bootstrap-time "top" top_env, as we cannot restore the "main" 1227 * bootstrap-time "top" top_env, as we cannot restore the "main"
1143 * coroutine as Coro has no such concept 1228 * coroutine as Coro has no such concept.
1229 * This actually isn't valid with the pthread backend, but OSes requiring
1230 * that backend are too broken to do it in a standards-compliant way.
1144 */ 1231 */
1145 PL_top_env = main_top_env; 1232 PL_top_env = main_top_env;
1146 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 1233 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1147 } 1234 }
1148} 1235}
… …
1225cctx_destroy (coro_cctx *cctx) 1312cctx_destroy (coro_cctx *cctx)
1226{ 1313{
1227 if (!cctx) 1314 if (!cctx)
1228 return; 1315 return;
1229 1316
1317 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
1318
1230 --cctx_count; 1319 --cctx_count;
1231 coro_destroy (&cctx->cctx); 1320 coro_destroy (&cctx->cctx);
1232 1321
1233 /* coro_transfer creates new, empty cctx's */ 1322 /* coro_transfer creates new, empty cctx's */
1234 if (cctx->sptr) 1323 if (cctx->sptr)
… …
1297 /* TODO: throwing up here is considered harmful */ 1386 /* TODO: throwing up here is considered harmful */
1298 1387
1299 if (expect_true (prev != next)) 1388 if (expect_true (prev != next))
1300 { 1389 {
1301 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1390 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1302 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); 1391 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1303 1392
1304 if (expect_false (next->flags & CF_RUNNING))
1305 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1306
1307 if (expect_false (next->flags & CF_DESTROYED)) 1393 if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1308 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); 1394 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1309 1395
1310#if !PERL_VERSION_ATLEAST (5,10,0) 1396#if !PERL_VERSION_ATLEAST (5,10,0)
1311 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1397 if (expect_false (PL_lex_state != LEX_NOTPARSING))
1312 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1398 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1313#endif 1399#endif
… …
1319transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1405transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1320{ 1406{
1321 dSTACKLEVEL; 1407 dSTACKLEVEL;
1322 1408
1323 /* sometimes transfer is only called to set idle_sp */ 1409 /* sometimes transfer is only called to set idle_sp */
1324 if (expect_false (!next)) 1410 if (expect_false (!prev))
1325 { 1411 {
1326 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1412 cctx_current->idle_sp = STACKLEVEL;
1327 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1413 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1328 } 1414 }
1329 else if (expect_true (prev != next)) 1415 else if (expect_true (prev != next))
1330 { 1416 {
1331 coro_cctx *prev__cctx; 1417 coro_cctx *cctx_prev;
1332 1418
1333 if (expect_false (prev->flags & CF_NEW)) 1419 if (expect_false (prev->flags & CF_NEW))
1334 { 1420 {
1335 /* create a new empty/source context */ 1421 /* create a new empty/source context */
1336 prev->cctx = cctx_new_empty ();
1337 prev->flags &= ~CF_NEW; 1422 prev->flags &= ~CF_NEW;
1338 prev->flags |= CF_RUNNING; 1423 prev->flags |= CF_RUNNING;
1339 } 1424 }
1340 1425
1341 prev->flags &= ~CF_RUNNING; 1426 prev->flags &= ~CF_RUNNING;
… …
1352 coro_setup (aTHX_ next); 1437 coro_setup (aTHX_ next);
1353 } 1438 }
1354 else 1439 else
1355 load_perl (aTHX_ next); 1440 load_perl (aTHX_ next);
1356 1441
1357 prev__cctx = prev->cctx;
1358
1359 /* possibly untie and reuse the cctx */ 1442 /* possibly untie and reuse the cctx */
1360 if (expect_true ( 1443 if (expect_true (
1361 prev__cctx->idle_sp == STACKLEVEL 1444 cctx_current->idle_sp == STACKLEVEL
1362 && !(prev__cctx->flags & CC_TRACE) 1445 && !(cctx_current->flags & CC_TRACE)
1363 && !force_cctx 1446 && !force_cctx
1364 )) 1447 ))
1365 { 1448 {
1366 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1449 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1367 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); 1450 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1368 1451
1369 prev->cctx = 0;
1370
1371 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1452 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1372 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1453 /* without this the next cctx_get might destroy the running cctx while still in use */
1373 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1454 if (expect_false (CCTX_EXPIRED (cctx_current)))
1374 if (!next->cctx) 1455 if (expect_true (!next->cctx))
1375 next->cctx = cctx_get (aTHX); 1456 next->cctx = cctx_get (aTHX);
1376 1457
1377 cctx_put (prev__cctx); 1458 cctx_put (cctx_current);
1378 } 1459 }
1460 else
1461 prev->cctx = cctx_current;
1379 1462
1380 ++next->usecount; 1463 ++next->usecount;
1381 1464
1382 if (expect_true (!next->cctx)) 1465 cctx_prev = cctx_current;
1383 next->cctx = cctx_get (aTHX); 1466 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1384 1467
1385 if (expect_false (prev__cctx != next->cctx)) 1468 next->cctx = 0;
1469
1470 if (expect_false (cctx_prev != cctx_current))
1386 { 1471 {
1387 prev__cctx->top_env = PL_top_env; 1472 cctx_prev->top_env = PL_top_env;
1388 PL_top_env = next->cctx->top_env; 1473 PL_top_env = cctx_current->top_env;
1389 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1474 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1390 } 1475 }
1391 1476
1392 transfer_tail (aTHX); 1477 transfer_tail (aTHX);
1393 } 1478 }
1394} 1479}
… …
1402coro_state_destroy (pTHX_ struct coro *coro) 1487coro_state_destroy (pTHX_ struct coro *coro)
1403{ 1488{
1404 if (coro->flags & CF_DESTROYED) 1489 if (coro->flags & CF_DESTROYED)
1405 return 0; 1490 return 0;
1406 1491
1407 if (coro->on_destroy) 1492 if (coro->on_destroy && !PL_dirty)
1408 coro->on_destroy (aTHX_ coro); 1493 coro->on_destroy (aTHX_ coro);
1409 1494
1410 coro->flags |= CF_DESTROYED; 1495 coro->flags |= CF_DESTROYED;
1411 1496
1412 if (coro->flags & CF_READY) 1497 if (coro->flags & CF_READY)
… …
1416 --coro_nready; 1501 --coro_nready;
1417 } 1502 }
1418 else 1503 else
1419 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1504 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1420 1505
1421 if (coro->mainstack && coro->mainstack != main_mainstack) 1506 if (coro->mainstack
1507 && coro->mainstack != main_mainstack
1508 && coro->slot
1509 && !PL_dirty)
1422 { 1510 {
1423 struct coro temp; 1511 struct coro *current = SvSTATE_current;
1424 1512
1425 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); 1513 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1426 1514
1427 save_perl (aTHX_ &temp); 1515 save_perl (aTHX_ current);
1428 load_perl (aTHX_ coro); 1516 load_perl (aTHX_ coro);
1429 1517
1430 coro_destruct (aTHX_ coro); 1518 coro_destruct_perl (aTHX_ coro);
1431 1519
1432 load_perl (aTHX_ &temp); 1520 load_perl (aTHX_ current);
1433 1521
1434 coro->slot = 0; 1522 coro->slot = 0;
1435 } 1523 }
1436 1524
1437 cctx_destroy (coro->cctx); 1525 cctx_destroy (coro->cctx);
1526 SvREFCNT_dec (coro->startcv);
1438 SvREFCNT_dec (coro->args); 1527 SvREFCNT_dec (coro->args);
1528 SvREFCNT_dec (CORO_THROW);
1439 1529
1440 if (coro->next) coro->next->prev = coro->prev; 1530 if (coro->next) coro->next->prev = coro->prev;
1441 if (coro->prev) coro->prev->next = coro->next; 1531 if (coro->prev) coro->prev->next = coro->next;
1442 if (coro == coro_first) coro_first = coro->next; 1532 if (coro == coro_first) coro_first = coro->next;
1443 1533
… …
1497 1587
1498 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1588 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1499 TRANSFER (ta, 1); 1589 TRANSFER (ta, 1);
1500} 1590}
1501 1591
1592/*****************************************************************************/
1593/* gensub: simple closure generation utility */
1594
1595#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1596
1597/* create a closure from XS, returns a code reference */
1598/* the arg can be accessed via GENSUB_ARG from the callback */
1599/* the callback must use dXSARGS/XSRETURN */
1600static SV *
1601gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1602{
1603 CV *cv = (CV *)newSV (0);
1604
1605 sv_upgrade ((SV *)cv, SVt_PVCV);
1606
1607 CvANON_on (cv);
1608 CvISXSUB_on (cv);
1609 CvXSUB (cv) = xsub;
1610 GENSUB_ARG = arg;
1611
1612 return newRV_noinc ((SV *)cv);
1613}
1614
1502/** Coro ********************************************************************/ 1615/** Coro ********************************************************************/
1503 1616
1504INLINE void 1617INLINE void
1505coro_enq (pTHX_ struct coro *coro) 1618coro_enq (pTHX_ struct coro *coro)
1506{ 1619{
1507 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1620 struct coro **ready = coro_ready [coro->prio - PRIO_MIN];
1508}
1509 1621
1510INLINE SV * 1622 SvREFCNT_inc_NN (coro->hv);
1623
1624 coro->next_ready = 0;
1625 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1626 ready [1] = coro;
1627}
1628
1629INLINE struct coro *
1511coro_deq (pTHX) 1630coro_deq (pTHX)
1512{ 1631{
1513 int prio; 1632 int prio;
1514 1633
1515 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1634 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1516 if (AvFILLp (coro_ready [prio]) >= 0) 1635 {
1517 return av_shift (coro_ready [prio]); 1636 struct coro **ready = coro_ready [prio];
1518 1637
1519 return 0; 1638 if (ready [0])
1639 {
1640 struct coro *coro = ready [0];
1641 ready [0] = coro->next_ready;
1642 return coro;
1643 }
1644 }
1520} 1645}
1521 1646
1522static int 1647static int
1523api_ready (pTHX_ SV *coro_sv) 1648api_ready (pTHX_ SV *coro_sv)
1524{ 1649{
1525 struct coro *coro; 1650 struct coro *coro;
1526 SV *sv_hook; 1651 SV *sv_hook;
1527 void (*xs_hook)(void); 1652 void (*xs_hook)(void);
1528 1653
1529 if (SvROK (coro_sv))
1530 coro_sv = SvRV (coro_sv);
1531
1532 coro = SvSTATE (coro_sv); 1654 coro = SvSTATE (coro_sv);
1533 1655
1534 if (coro->flags & CF_READY) 1656 if (coro->flags & CF_READY)
1535 return 0; 1657 return 0;
1536 1658
… …
1567api_is_ready (pTHX_ SV *coro_sv) 1689api_is_ready (pTHX_ SV *coro_sv)
1568{ 1690{
1569 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1691 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1570} 1692}
1571 1693
1694/* expects to own a reference to next->hv */
1572INLINE void 1695INLINE void
1573prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1696prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1574{ 1697{
1575 SV *prev_sv, *next_sv;
1576
1577 for (;;)
1578 {
1579 next_sv = coro_deq (aTHX);
1580
1581 /* nothing to schedule: call the idle handler */
1582 if (expect_false (!next_sv))
1583 {
1584 dSP;
1585
1586 ENTER;
1587 SAVETMPS;
1588
1589 PUSHMARK (SP);
1590 PUTBACK;
1591 call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1592
1593 FREETMPS;
1594 LEAVE;
1595 continue;
1596 }
1597
1598 ta->next = SvSTATE_hv (next_sv);
1599
1600 /* cannot transfer to destroyed coros, skip and look for next */
1601 if (expect_false (ta->next->flags & CF_DESTROYED))
1602 {
1603 SvREFCNT_dec (next_sv);
1604 /* coro_nready has already been taken care of by destroy */
1605 continue;
1606 }
1607
1608 --coro_nready;
1609 break;
1610 }
1611
1612 /* free this only after the transfer */
1613 prev_sv = SvRV (coro_current); 1698 SV *prev_sv = SvRV (coro_current);
1699
1614 ta->prev = SvSTATE_hv (prev_sv); 1700 ta->prev = SvSTATE_hv (prev_sv);
1701 ta->next = next;
1702
1615 TRANSFER_CHECK (*ta); 1703 TRANSFER_CHECK (*ta);
1616 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); 1704
1617 ta->next->flags &= ~CF_READY;
1618 SvRV_set (coro_current, next_sv); 1705 SvRV_set (coro_current, (SV *)next->hv);
1619 1706
1620 free_coro_mortal (aTHX); 1707 free_coro_mortal (aTHX);
1621 coro_mortal = prev_sv; 1708 coro_mortal = prev_sv;
1622} 1709}
1623 1710
1711static void
1712prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1713{
1714 for (;;)
1715 {
1716 struct coro *next = coro_deq (aTHX);
1717
1718 if (expect_true (next))
1719 {
1720 /* cannot transfer to destroyed coros, skip and look for next */
1721 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1722 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1723 else
1724 {
1725 next->flags &= ~CF_READY;
1726 --coro_nready;
1727
1728 prepare_schedule_to (aTHX_ ta, next);
1729 break;
1730 }
1731 }
1732 else
1733 {
1734 /* nothing to schedule: call the idle handler */
1735 if (SvROK (sv_idle)
1736 && SvOBJECT (SvRV (sv_idle)))
1737 {
1738 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1739 api_ready (aTHX_ SvRV (sv_idle));
1740 --coro_nready;
1741 }
1742 else
1743 {
1744 dSP;
1745
1746 ENTER;
1747 SAVETMPS;
1748
1749 PUSHMARK (SP);
1750 PUTBACK;
1751 call_sv (sv_idle, G_VOID | G_DISCARD);
1752
1753 FREETMPS;
1754 LEAVE;
1755 }
1756 }
1757 }
1758}
1759
1624INLINE void 1760INLINE void
1625prepare_cede (pTHX_ struct coro_transfer_args *ta) 1761prepare_cede (pTHX_ struct coro_transfer_args *ta)
1626{ 1762{
1627 api_ready (aTHX_ coro_current); 1763 api_ready (aTHX_ coro_current);
1628 prepare_schedule (aTHX_ ta); 1764 prepare_schedule (aTHX_ ta);
… …
1647{ 1783{
1648 struct coro_transfer_args ta; 1784 struct coro_transfer_args ta;
1649 1785
1650 prepare_schedule (aTHX_ &ta); 1786 prepare_schedule (aTHX_ &ta);
1651 TRANSFER (ta, 1); 1787 TRANSFER (ta, 1);
1788}
1789
1790static void
1791api_schedule_to (pTHX_ SV *coro_sv)
1792{
1793 struct coro_transfer_args ta;
1794 struct coro *next = SvSTATE (coro_sv);
1795
1796 SvREFCNT_inc_NN (coro_sv);
1797 prepare_schedule_to (aTHX_ &ta, next);
1652} 1798}
1653 1799
1654static int 1800static int
1655api_cede (pTHX) 1801api_cede (pTHX)
1656{ 1802{
… …
1685static void 1831static void
1686api_trace (pTHX_ SV *coro_sv, int flags) 1832api_trace (pTHX_ SV *coro_sv, int flags)
1687{ 1833{
1688 struct coro *coro = SvSTATE (coro_sv); 1834 struct coro *coro = SvSTATE (coro_sv);
1689 1835
1836 if (coro->flags & CF_RUNNING)
1837 croak ("cannot enable tracing on a running coroutine, caught");
1838
1690 if (flags & CC_TRACE) 1839 if (flags & CC_TRACE)
1691 { 1840 {
1692 if (!coro->cctx) 1841 if (!coro->cctx)
1693 coro->cctx = cctx_new_run (); 1842 coro->cctx = cctx_new_run ();
1694 else if (!(coro->cctx->flags & CC_TRACE)) 1843 else if (!(coro->cctx->flags & CC_TRACE))
1695 croak ("cannot enable tracing on coroutine with custom stack,"); 1844 croak ("cannot enable tracing on coroutine with custom stack, caught");
1696 1845
1697 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 1846 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1698 } 1847 }
1699 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 1848 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1700 { 1849 {
… …
1703 if (coro->flags & CF_RUNNING) 1852 if (coro->flags & CF_RUNNING)
1704 PL_runops = RUNOPS_DEFAULT; 1853 PL_runops = RUNOPS_DEFAULT;
1705 else 1854 else
1706 coro->slot->runops = RUNOPS_DEFAULT; 1855 coro->slot->runops = RUNOPS_DEFAULT;
1707 } 1856 }
1857}
1858
1859static void
1860coro_call_on_destroy (pTHX_ struct coro *coro)
1861{
1862 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
1863 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1864
1865 if (on_destroyp)
1866 {
1867 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1868
1869 while (AvFILLp (on_destroy) >= 0)
1870 {
1871 dSP; /* don't disturb outer sp */
1872 SV *cb = av_pop (on_destroy);
1873
1874 PUSHMARK (SP);
1875
1876 if (statusp)
1877 {
1878 int i;
1879 AV *status = (AV *)SvRV (*statusp);
1880 EXTEND (SP, AvFILLp (status) + 1);
1881
1882 for (i = 0; i <= AvFILLp (status); ++i)
1883 PUSHs (AvARRAY (status)[i]);
1884 }
1885
1886 PUTBACK;
1887 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
1888 }
1889 }
1890}
1891
1892static void
1893slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1894{
1895 int i;
1896 HV *hv = (HV *)SvRV (coro_current);
1897 AV *av = newAV ();
1898
1899 av_extend (av, items - 1);
1900 for (i = 0; i < items; ++i)
1901 av_push (av, SvREFCNT_inc_NN (arg [i]));
1902
1903 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
1904
1905 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1906 api_ready (aTHX_ sv_manager);
1907
1908 frame->prepare = prepare_schedule;
1909 frame->check = slf_check_repeat;
1910
1911 /* as a minor optimisation, we could unwind all stacks here */
1912 /* but that puts extra pressure on pp_slf, and is not worth much */
1913 /*coro_unwind_stacks (aTHX);*/
1914}
1915
1916/*****************************************************************************/
1917/* async pool handler */
1918
1919static int
1920slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
1921{
1922 HV *hv = (HV *)SvRV (coro_current);
1923 struct coro *coro = (struct coro *)frame->data;
1924
1925 if (!coro->invoke_cb)
1926 return 1; /* loop till we have invoke */
1927 else
1928 {
1929 hv_store (hv, "desc", sizeof ("desc") - 1,
1930 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1931
1932 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1933
1934 {
1935 dSP;
1936 XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
1937 PUTBACK;
1938 }
1939
1940 SvREFCNT_dec (GvAV (PL_defgv));
1941 GvAV (PL_defgv) = coro->invoke_av;
1942 coro->invoke_av = 0;
1943
1944 return 0;
1945 }
1946}
1947
1948static void
1949slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1950{
1951 HV *hv = (HV *)SvRV (coro_current);
1952 struct coro *coro = SvSTATE_hv ((SV *)hv);
1953
1954 if (expect_true (coro->saved_deffh))
1955 {
1956 /* subsequent iteration */
1957 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1958 coro->saved_deffh = 0;
1959
1960 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1961 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1962 {
1963 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
1964 coro->invoke_av = newAV ();
1965
1966 frame->prepare = prepare_nop;
1967 }
1968 else
1969 {
1970 av_clear (GvAV (PL_defgv));
1971 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
1972
1973 coro->prio = 0;
1974
1975 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1976 api_trace (aTHX_ coro_current, 0);
1977
1978 frame->prepare = prepare_schedule;
1979 av_push (av_async_pool, SvREFCNT_inc (hv));
1980 }
1981 }
1982 else
1983 {
1984 /* first iteration, simply fall through */
1985 frame->prepare = prepare_nop;
1986 }
1987
1988 frame->check = slf_check_pool_handler;
1989 frame->data = (void *)coro;
1990}
1991
1992/*****************************************************************************/
1993/* rouse callback */
1994
1995#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
1996
1997static void
1998coro_rouse_callback (pTHX_ CV *cv)
1999{
2000 dXSARGS;
2001 SV *data = (SV *)GENSUB_ARG;
2002
2003 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2004 {
2005 /* first call, set args */
2006 SV *coro = SvRV (data);
2007 AV *av = newAV ();
2008
2009 SvRV_set (data, (SV *)av);
2010
2011 /* better take a full copy of the arguments */
2012 while (items--)
2013 av_store (av, items, newSVsv (ST (items)));
2014
2015 api_ready (aTHX_ coro);
2016 SvREFCNT_dec (coro);
2017 }
2018
2019 XSRETURN_EMPTY;
2020}
2021
2022static int
2023slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
2024{
2025 SV *data = (SV *)frame->data;
2026
2027 if (CORO_THROW)
2028 return 0;
2029
2030 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2031 return 1;
2032
2033 /* now push all results on the stack */
2034 {
2035 dSP;
2036 AV *av = (AV *)SvRV (data);
2037 int i;
2038
2039 EXTEND (SP, AvFILLp (av) + 1);
2040 for (i = 0; i <= AvFILLp (av); ++i)
2041 PUSHs (sv_2mortal (AvARRAY (av)[i]));
2042
2043 /* we have stolen the elements, so set length to zero and free */
2044 AvFILLp (av) = -1;
2045 av_undef (av);
2046
2047 PUTBACK;
2048 }
2049
2050 return 0;
2051}
2052
2053static void
2054slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2055{
2056 SV *cb;
2057
2058 if (items)
2059 cb = arg [0];
2060 else
2061 {
2062 struct coro *coro = SvSTATE_current;
2063
2064 if (!coro->rouse_cb)
2065 croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
2066
2067 cb = sv_2mortal (coro->rouse_cb);
2068 coro->rouse_cb = 0;
2069 }
2070
2071 if (!SvROK (cb)
2072 || SvTYPE (SvRV (cb)) != SVt_PVCV
2073 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2074 croak ("Coro::rouse_wait called with illegal callback argument,");
2075
2076 {
2077 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */
2078 SV *data = (SV *)GENSUB_ARG;
2079
2080 frame->data = (void *)data;
2081 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2082 frame->check = slf_check_rouse_wait;
2083 }
2084}
2085
2086static SV *
2087coro_new_rouse_cb (pTHX)
2088{
2089 HV *hv = (HV *)SvRV (coro_current);
2090 struct coro *coro = SvSTATE_hv (hv);
2091 SV *data = newRV_inc ((SV *)hv);
2092 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);
2093
2094 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2095 SvREFCNT_dec (data); /* magicext increases the refcount */
2096
2097 SvREFCNT_dec (coro->rouse_cb);
2098 coro->rouse_cb = SvREFCNT_inc_NN (cb);
2099
2100 return cb;
1708} 2101}
1709 2102
1710/*****************************************************************************/ 2103/*****************************************************************************/
1711/* schedule-like-function opcode (SLF) */ 2104/* schedule-like-function opcode (SLF) */
1712 2105
… …
1759static void 2152static void
1760slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2153slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1761{ 2154{
1762 frame->prepare = prepare_schedule; 2155 frame->prepare = prepare_schedule;
1763 frame->check = slf_check_nop; 2156 frame->check = slf_check_nop;
2157}
2158
2159static void
2160slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
2161{
2162 struct coro *next = (struct coro *)slf_frame.data;
2163
2164 SvREFCNT_inc_NN (next->hv);
2165 prepare_schedule_to (aTHX_ ta, next);
2166}
2167
2168static void
2169slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2170{
2171 if (!items)
2172 croak ("Coro::schedule_to expects a coroutine argument, caught");
2173
2174 frame->data = (void *)SvSTATE (arg [0]);
2175 frame->prepare = slf_prepare_schedule_to;
2176 frame->check = slf_check_nop;
2177}
2178
2179static void
2180slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2181{
2182 api_ready (aTHX_ SvRV (coro_current));
2183
2184 slf_init_schedule_to (aTHX_ frame, cv, arg, items);
1764} 2185}
1765 2186
1766static void 2187static void
1767slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2188slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1768{ 2189{
… …
1840 while (slf_frame.check (aTHX_ &slf_frame)); 2261 while (slf_frame.check (aTHX_ &slf_frame));
1841 2262
1842 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2263 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1843 2264
1844 /* exception handling */ 2265 /* exception handling */
1845 if (expect_false (coro_throw)) 2266 if (expect_false (CORO_THROW))
1846 { 2267 {
1847 SV *exception = sv_2mortal (coro_throw); 2268 SV *exception = sv_2mortal (CORO_THROW);
1848 2269
1849 coro_throw = 0; 2270 CORO_THROW = 0;
1850 sv_setsv (ERRSV, exception); 2271 sv_setsv (ERRSV, exception);
1851 croak (0); 2272 croak (0);
1852 } 2273 }
1853 2274
1854 /* return value handling - mostly like entersub */ 2275 /* return value handling - mostly like entersub */
… …
1914 } 2335 }
1915 else 2336 else
1916 slf_argc = 0; 2337 slf_argc = 0;
1917 2338
1918 PL_op->op_ppaddr = pp_slf; 2339 PL_op->op_ppaddr = pp_slf;
1919 PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ 2340 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
1920 2341
1921 PL_op = (OP *)&slf_restore; 2342 PL_op = (OP *)&slf_restore;
2343}
2344
2345/*****************************************************************************/
2346/* dynamic wind */
2347
2348static void
2349on_enterleave_call (pTHX_ SV *cb)
2350{
2351 dSP;
2352
2353 PUSHSTACK;
2354
2355 PUSHMARK (SP);
2356 PUTBACK;
2357 call_sv (cb, G_VOID | G_DISCARD);
2358 SPAGAIN;
2359
2360 POPSTACK;
2361}
2362
2363static SV *
2364coro_avp_pop_and_free (pTHX_ AV **avp)
2365{
2366 AV *av = *avp;
2367 SV *res = av_pop (av);
2368
2369 if (AvFILLp (av) < 0)
2370 {
2371 *avp = 0;
2372 SvREFCNT_dec (av);
2373 }
2374
2375 return res;
2376}
2377
2378static void
2379coro_pop_on_enter (pTHX_ void *coro)
2380{
2381 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2382 SvREFCNT_dec (cb);
2383}
2384
2385static void
2386coro_pop_on_leave (pTHX_ void *coro)
2387{
2388 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2389 on_enterleave_call (aTHX_ sv_2mortal (cb));
1922} 2390}
1923 2391
1924/*****************************************************************************/ 2392/*****************************************************************************/
1925/* PerlIO::cede */ 2393/* PerlIO::cede */
1926 2394
… …
1995 PerlIOBuf_get_cnt, 2463 PerlIOBuf_get_cnt,
1996 PerlIOBuf_set_ptrcnt, 2464 PerlIOBuf_set_ptrcnt,
1997}; 2465};
1998 2466
1999/*****************************************************************************/ 2467/*****************************************************************************/
2468/* Coro::Semaphore & Coro::Signal */
2469
2470static SV *
2471coro_waitarray_new (pTHX_ int count)
2472{
2473 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */
2474 AV *av = newAV ();
2475 SV **ary;
2476
2477 /* unfortunately, building manually saves memory */
2478 Newx (ary, 2, SV *);
2479 AvALLOC (av) = ary;
2480#if PERL_VERSION_ATLEAST (5,10,0)
2481 AvARRAY (av) = ary;
2482#else
2483 /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
2484 /* -DDEBUGGING flags this as a bug, despite it perfectly working */
2485 SvPVX ((SV *)av) = (char *)ary;
2486#endif
2487 AvMAX (av) = 1;
2488 AvFILLp (av) = 0;
2489 ary [0] = newSViv (count);
2490
2491 return newRV_noinc ((SV *)av);
2492}
2493
2000/* Coro::Semaphore */ 2494/* semaphore */
2001 2495
2002static void 2496static void
2003coro_semaphore_adjust (pTHX_ AV *av, IV adjust) 2497coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2004{ 2498{
2005 SV *count_sv = AvARRAY (av)[0]; 2499 SV *count_sv = AvARRAY (av)[0];
… …
2017 AvARRAY (av)[0] = AvARRAY (av)[1]; 2511 AvARRAY (av)[0] = AvARRAY (av)[1];
2018 AvARRAY (av)[1] = count_sv; 2512 AvARRAY (av)[1] = count_sv;
2019 cb = av_shift (av); 2513 cb = av_shift (av);
2020 2514
2021 if (SvOBJECT (cb)) 2515 if (SvOBJECT (cb))
2516 {
2022 api_ready (aTHX_ cb); 2517 api_ready (aTHX_ cb);
2023 else 2518 --count;
2024 croak ("callbacks not yet supported"); 2519 }
2520 else if (SvTYPE (cb) == SVt_PVCV)
2521 {
2522 dSP;
2523 PUSHMARK (SP);
2524 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2525 PUTBACK;
2526 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2527 }
2025 2528
2026 SvREFCNT_dec (cb); 2529 SvREFCNT_dec (cb);
2027
2028 --count;
2029 } 2530 }
2030} 2531}
2031 2532
2032static void 2533static void
2033coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2534coro_semaphore_on_destroy (pTHX_ struct coro *coro)
… …
2035 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2536 /* call $sem->adjust (0) to possibly wake up some other waiters */
2036 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2537 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2037} 2538}
2038 2539
2039static int 2540static int
2040slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) 2541slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2041{ 2542{
2042 AV *av = (AV *)frame->data; 2543 AV *av = (AV *)frame->data;
2043 SV *count_sv = AvARRAY (av)[0]; 2544 SV *count_sv = AvARRAY (av)[0];
2044 2545
2045 /* if we are about to throw, don't actually acquire the lock, just throw */ 2546 /* if we are about to throw, don't actually acquire the lock, just throw */
2046 if (coro_throw) 2547 if (CORO_THROW)
2047 return 0; 2548 return 0;
2048 else if (SvIVX (count_sv) > 0) 2549 else if (SvIVX (count_sv) > 0)
2049 { 2550 {
2050 SvSTATE_current->on_destroy = 0; 2551 SvSTATE_current->on_destroy = 0;
2552
2553 if (acquire)
2051 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2554 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2555 else
2556 coro_semaphore_adjust (aTHX_ av, 0);
2557
2052 return 0; 2558 return 0;
2053 } 2559 }
2054 else 2560 else
2055 { 2561 {
2056 int i; 2562 int i;
… …
2065 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2571 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2066 return 1; 2572 return 1;
2067 } 2573 }
2068} 2574}
2069 2575
2070static void 2576static int
2577slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
2578{
2579 return slf_check_semaphore_down_or_wait (aTHX_ frame, 1);
2580}
2581
2582static int
2583slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame)
2584{
2585 return slf_check_semaphore_down_or_wait (aTHX_ frame, 0);
2586}
2587
2588static void
2071slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2589slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2072{ 2590{
2073 AV *av = (AV *)SvRV (arg [0]); 2591 AV *av = (AV *)SvRV (arg [0]);
2074 2592
2075 if (SvIVX (AvARRAY (av)[0]) > 0) 2593 if (SvIVX (AvARRAY (av)[0]) > 0)
2076 { 2594 {
… …
2086 2604
2087 /* to avoid race conditions when a woken-up coro gets terminated */ 2605 /* to avoid race conditions when a woken-up coro gets terminated */
2088 /* we arrange for a temporary on_destroy that calls adjust (0) */ 2606 /* we arrange for a temporary on_destroy that calls adjust (0) */
2089 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 2607 SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2090 } 2608 }
2609}
2091 2610
2611static void
2612slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2613{
2614 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2092 frame->check = slf_check_semaphore_down; 2615 frame->check = slf_check_semaphore_down;
2093
2094} 2616}
2095 2617
2096/*****************************************************************************/ 2618static void
2097/* gensub: simple closure generation utility */ 2619slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2098
2099#define GENSUB_ARG CvXSUBANY (cv).any_ptr
2100
2101/* create a closure from XS, returns a code reference */
2102/* the arg can be accessed via GENSUB_ARG from the callback */
2103/* the callback must use dXSARGS/XSRETURN */
2104static SV *
2105gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
2106{ 2620{
2107 CV *cv = (CV *)newSV (0); 2621 if (items >= 2)
2622 {
2623 /* callback form */
2624 AV *av = (AV *)SvRV (arg [0]);
2625 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2108 2626
2109 sv_upgrade ((SV *)cv, SVt_PVCV); 2627 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2110 2628
2111 CvANON_on (cv); 2629 if (SvIVX (AvARRAY (av)[0]) > 0)
2112 CvISXSUB_on (cv); 2630 coro_semaphore_adjust (aTHX_ av, 0);
2113 CvXSUB (cv) = xsub;
2114 GENSUB_ARG = arg;
2115 2631
2116 return newRV_noinc ((SV *)cv); 2632 frame->prepare = prepare_nop;
2633 frame->check = slf_check_nop;
2634 }
2635 else
2636 {
2637 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2638 frame->check = slf_check_semaphore_wait;
2639 }
2640}
2641
2642/* signal */
2643
2644static void
2645coro_signal_wake (pTHX_ AV *av, int count)
2646{
2647 SvIVX (AvARRAY (av)[0]) = 0;
2648
2649 /* now signal count waiters */
2650 while (count > 0 && AvFILLp (av) > 0)
2651 {
2652 SV *cb;
2653
2654 /* swap first two elements so we can shift a waiter */
2655 cb = AvARRAY (av)[0];
2656 AvARRAY (av)[0] = AvARRAY (av)[1];
2657 AvARRAY (av)[1] = cb;
2658
2659 cb = av_shift (av);
2660
2661 api_ready (aTHX_ cb);
2662 sv_setiv (cb, 0); /* signal waiter */
2663 SvREFCNT_dec (cb);
2664
2665 --count;
2666 }
2667}
2668
2669static int
2670slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
2671{
2672 /* if we are about to throw, also stop waiting */
2673 return SvROK ((SV *)frame->data) && !CORO_THROW;
2674}
2675
2676static void
2677slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2678{
2679 AV *av = (AV *)SvRV (arg [0]);
2680
2681 if (SvIVX (AvARRAY (av)[0]))
2682 {
2683 SvIVX (AvARRAY (av)[0]) = 0;
2684 frame->prepare = prepare_nop;
2685 frame->check = slf_check_nop;
2686 }
2687 else
2688 {
2689 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */
2690
2691 av_push (av, waiter);
2692
2693 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2694 frame->prepare = prepare_schedule;
2695 frame->check = slf_check_signal_wait;
2696 }
2117} 2697}
2118 2698
2119/*****************************************************************************/ 2699/*****************************************************************************/
2120/* Coro::AIO */ 2700/* Coro::AIO */
2121 2701
… …
2136 dXSARGS; 2716 dXSARGS;
2137 AV *state = (AV *)GENSUB_ARG; 2717 AV *state = (AV *)GENSUB_ARG;
2138 SV *coro = av_pop (state); 2718 SV *coro = av_pop (state);
2139 SV *data_sv = newSV (sizeof (struct io_state)); 2719 SV *data_sv = newSV (sizeof (struct io_state));
2140 2720
2141 av_extend (state, items); 2721 av_extend (state, items - 1);
2142 2722
2143 sv_upgrade (data_sv, SVt_PV); 2723 sv_upgrade (data_sv, SVt_PV);
2144 SvCUR_set (data_sv, sizeof (struct io_state)); 2724 SvCUR_set (data_sv, sizeof (struct io_state));
2145 SvPOK_only (data_sv); 2725 SvPOK_only (data_sv);
2146 2726
… …
2174 AV *state = (AV *)frame->data; 2754 AV *state = (AV *)frame->data;
2175 2755
2176 /* if we are about to throw, return early */ 2756 /* if we are about to throw, return early */
2177 /* this does not cancel the aio request, but at least */ 2757 /* this does not cancel the aio request, but at least */
2178 /* it quickly returns */ 2758 /* it quickly returns */
2179 if (coro_throw) 2759 if (CORO_THROW)
2180 return 0; 2760 return 0;
2181 2761
2182 /* one element that is an RV? repeat! */ 2762 /* one element that is an RV? repeat! */
2183 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 2763 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))
2184 return 1; 2764 return 1;
… …
2281 XSRETURN_EMPTY; 2861 XSRETURN_EMPTY;
2282} 2862}
2283 2863
2284/*****************************************************************************/ 2864/*****************************************************************************/
2285 2865
2866#if CORO_CLONE
2867# include "clone.c"
2868#endif
2869
2286MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 2870MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2287 2871
2288PROTOTYPES: DISABLE 2872PROTOTYPES: DISABLE
2289 2873
2290BOOT: 2874BOOT:
… …
2294 coro_thx = PERL_GET_CONTEXT; 2878 coro_thx = PERL_GET_CONTEXT;
2295# endif 2879# endif
2296#endif 2880#endif
2297 BOOT_PAGESIZE; 2881 BOOT_PAGESIZE;
2298 2882
2883 cctx_current = cctx_new_empty ();
2884
2299 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 2885 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2300 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 2886 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2301 2887
2302 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 2888 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2303 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; 2889 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
… …
2322 2908
2323 { 2909 {
2324 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); 2910 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2325 2911
2326 if (!PL_custom_op_names) PL_custom_op_names = newHV (); 2912 if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2327 hv_store_ent (PL_custom_op_names, slf, 2913 hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2328 newSVpv ("coro_slf", 0), 0);
2329 2914
2330 if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); 2915 if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2331 hv_store_ent (PL_custom_op_descs, slf, 2916 hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2332 newSVpv ("coro schedule like function", 0), 0);
2333 } 2917 }
2334 2918
2335 coroapi.ver = CORO_API_VERSION; 2919 coroapi.ver = CORO_API_VERSION;
2336 coroapi.rev = CORO_API_REVISION; 2920 coroapi.rev = CORO_API_REVISION;
2337 2921
… …
2356 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 2940 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
2357} 2941}
2358 2942
2359SV * 2943SV *
2360new (char *klass, ...) 2944new (char *klass, ...)
2945 ALIAS:
2946 Coro::new = 1
2361 CODE: 2947 CODE:
2362{ 2948{
2363 struct coro *coro; 2949 struct coro *coro;
2364 MAGIC *mg; 2950 MAGIC *mg;
2365 HV *hv; 2951 HV *hv;
2952 CV *cb;
2366 int i; 2953 int i;
2954
2955 if (items > 1)
2956 {
2957 cb = coro_sv_2cv (aTHX_ ST (1));
2958
2959 if (!ix)
2960 {
2961 if (CvISXSUB (cb))
2962 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2963
2964 if (!CvROOT (cb))
2965 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2966 }
2967 }
2367 2968
2368 Newz (0, coro, 1, struct coro); 2969 Newz (0, coro, 1, struct coro);
2369 coro->args = newAV (); 2970 coro->args = newAV ();
2370 coro->flags = CF_NEW; 2971 coro->flags = CF_NEW;
2371 2972
… …
2376 coro->hv = hv = newHV (); 2977 coro->hv = hv = newHV ();
2377 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); 2978 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2378 mg->mg_flags |= MGf_DUP; 2979 mg->mg_flags |= MGf_DUP;
2379 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 2980 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2380 2981
2982 if (items > 1)
2983 {
2381 av_extend (coro->args, items - 1); 2984 av_extend (coro->args, items - 1 + ix - 1);
2985
2986 if (ix)
2987 {
2988 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2989 cb = cv_coro_run;
2990 }
2991
2992 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2993
2382 for (i = 1; i < items; i++) 2994 for (i = 2; i < items; i++)
2383 av_push (coro->args, newSVsv (ST (i))); 2995 av_push (coro->args, newSVsv (ST (i)));
2996 }
2384} 2997}
2385 OUTPUT: 2998 OUTPUT:
2386 RETVAL 2999 RETVAL
2387 3000
2388void 3001void
… …
2401void 3014void
2402_exit (int code) 3015_exit (int code)
2403 PROTOTYPE: $ 3016 PROTOTYPE: $
2404 CODE: 3017 CODE:
2405 _exit (code); 3018 _exit (code);
3019
3020SV *
3021clone (Coro::State coro)
3022 CODE:
3023{
3024#if CORO_CLONE
3025 struct coro *ncoro = coro_clone (aTHX_ coro);
3026 MAGIC *mg;
3027 /* TODO: too much duplication */
3028 ncoro->hv = newHV ();
3029 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
3030 mg->mg_flags |= MGf_DUP;
3031 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
3032#else
3033 croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
3034#endif
3035}
3036 OUTPUT:
3037 RETVAL
2406 3038
2407int 3039int
2408cctx_stacksize (int new_stacksize = 0) 3040cctx_stacksize (int new_stacksize = 0)
2409 PROTOTYPE: ;$ 3041 PROTOTYPE: ;$
2410 CODE: 3042 CODE:
… …
2460 eval = 1 3092 eval = 1
2461 CODE: 3093 CODE:
2462{ 3094{
2463 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3095 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2464 { 3096 {
2465 struct coro temp; 3097 struct coro *current = SvSTATE_current;
2466 3098
2467 if (!(coro->flags & CF_RUNNING)) 3099 if (current != coro)
2468 { 3100 {
2469 PUTBACK; 3101 PUTBACK;
2470 save_perl (aTHX_ &temp); 3102 save_perl (aTHX_ current);
2471 load_perl (aTHX_ coro); 3103 load_perl (aTHX_ coro);
3104 SPAGAIN;
2472 } 3105 }
2473 3106
2474 {
2475 dSP;
2476 ENTER;
2477 SAVETMPS;
2478 PUTBACK;
2479 PUSHSTACK; 3107 PUSHSTACK;
3108
2480 PUSHMARK (SP); 3109 PUSHMARK (SP);
3110 PUTBACK;
2481 3111
2482 if (ix) 3112 if (ix)
2483 eval_sv (coderef, 0); 3113 eval_sv (coderef, 0);
2484 else 3114 else
2485 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3115 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2486 3116
2487 POPSTACK; 3117 POPSTACK;
2488 SPAGAIN; 3118 SPAGAIN;
2489 FREETMPS;
2490 LEAVE;
2491 PUTBACK;
2492 }
2493 3119
2494 if (!(coro->flags & CF_RUNNING)) 3120 if (current != coro)
2495 { 3121 {
3122 PUTBACK;
2496 save_perl (aTHX_ coro); 3123 save_perl (aTHX_ coro);
2497 load_perl (aTHX_ &temp); 3124 load_perl (aTHX_ current);
2498 SPAGAIN; 3125 SPAGAIN;
2499 } 3126 }
2500 } 3127 }
2501} 3128}
2502 3129
… …
2506 ALIAS: 3133 ALIAS:
2507 is_ready = CF_READY 3134 is_ready = CF_READY
2508 is_running = CF_RUNNING 3135 is_running = CF_RUNNING
2509 is_new = CF_NEW 3136 is_new = CF_NEW
2510 is_destroyed = CF_DESTROYED 3137 is_destroyed = CF_DESTROYED
3138 is_suspended = CF_SUSPENDED
2511 CODE: 3139 CODE:
2512 RETVAL = boolSV (coro->flags & ix); 3140 RETVAL = boolSV (coro->flags & ix);
2513 OUTPUT: 3141 OUTPUT:
2514 RETVAL 3142 RETVAL
2515 3143
… …
2517throw (Coro::State self, SV *throw = &PL_sv_undef) 3145throw (Coro::State self, SV *throw = &PL_sv_undef)
2518 PROTOTYPE: $;$ 3146 PROTOTYPE: $;$
2519 CODE: 3147 CODE:
2520{ 3148{
2521 struct coro *current = SvSTATE_current; 3149 struct coro *current = SvSTATE_current;
2522 SV **throwp = self == current ? &coro_throw : &self->throw; 3150 SV **throwp = self == current ? &CORO_THROW : &self->except;
2523 SvREFCNT_dec (*throwp); 3151 SvREFCNT_dec (*throwp);
2524 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3152 *throwp = SvOK (throw) ? newSVsv (throw) : 0;
2525} 3153}
2526 3154
2527void 3155void
… …
2531 3159
2532SV * 3160SV *
2533has_cctx (Coro::State coro) 3161has_cctx (Coro::State coro)
2534 PROTOTYPE: $ 3162 PROTOTYPE: $
2535 CODE: 3163 CODE:
2536 RETVAL = boolSV (!!coro->cctx); 3164 /* maybe manage the running flag differently */
3165 RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2537 OUTPUT: 3166 OUTPUT:
2538 RETVAL 3167 RETVAL
2539 3168
2540int 3169int
2541is_traced (Coro::State coro) 3170is_traced (Coro::State coro)
… …
2561 3190
2562void 3191void
2563force_cctx () 3192force_cctx ()
2564 PROTOTYPE: 3193 PROTOTYPE:
2565 CODE: 3194 CODE:
2566 SvSTATE_current->cctx->idle_sp = 0; 3195 cctx_current->idle_sp = 0;
2567 3196
2568void 3197void
2569swap_defsv (Coro::State self) 3198swap_defsv (Coro::State self)
2570 PROTOTYPE: $ 3199 PROTOTYPE: $
2571 ALIAS: 3200 ALIAS:
… …
2579 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3208 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2580 3209
2581 SV *tmp = *src; *src = *dst; *dst = tmp; 3210 SV *tmp = *src; *src = *dst; *dst = tmp;
2582 } 3211 }
2583 3212
3213void
3214cancel (Coro::State self)
3215 CODE:
3216 coro_state_destroy (aTHX_ self);
3217 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
3218
2584 3219
2585MODULE = Coro::State PACKAGE = Coro 3220MODULE = Coro::State PACKAGE = Coro
2586 3221
2587BOOT: 3222BOOT:
2588{ 3223{
2589 int i; 3224 int i;
2590 3225
2591 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2592 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3226 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2593 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3227 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2594 3228 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3229 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2595 coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); 3230 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2596 SvREADONLY_on (coro_current); 3231 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3232 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3233 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3234 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3235
3236 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3237 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3238 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3239 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2597 3240
2598 coro_stash = gv_stashpv ("Coro", TRUE); 3241 coro_stash = gv_stashpv ("Coro", TRUE);
2599 3242
2600 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3243 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
2601 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3244 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
2602 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3245 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
2603 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3246 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
2604 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3247 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
2605 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3248 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
2606 3249
2607 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
2608 coro_ready[i] = newAV ();
2609
2610 { 3250 {
2611 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3251 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2612 3252
2613 coroapi.schedule = api_schedule; 3253 coroapi.schedule = api_schedule;
3254 coroapi.schedule_to = api_schedule_to;
2614 coroapi.cede = api_cede; 3255 coroapi.cede = api_cede;
2615 coroapi.cede_notself = api_cede_notself; 3256 coroapi.cede_notself = api_cede_notself;
2616 coroapi.ready = api_ready; 3257 coroapi.ready = api_ready;
2617 coroapi.is_ready = api_is_ready; 3258 coroapi.is_ready = api_is_ready;
2618 coroapi.nready = coro_nready; 3259 coroapi.nready = coro_nready;
2619 coroapi.current = coro_current; 3260 coroapi.current = coro_current;
2620 3261
2621 GCoroAPI = &coroapi; 3262 /*GCoroAPI = &coroapi;*/
2622 sv_setiv (sv, (IV)&coroapi); 3263 sv_setiv (sv, (IV)&coroapi);
2623 SvREADONLY_on (sv); 3264 SvREADONLY_on (sv);
2624 } 3265 }
2625} 3266}
3267
3268void
3269terminate (...)
3270 CODE:
3271 CORO_EXECUTE_SLF_XS (slf_init_terminate);
2626 3272
2627void 3273void
2628schedule (...) 3274schedule (...)
2629 CODE: 3275 CODE:
2630 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3276 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3277
3278void
3279schedule_to (...)
3280 CODE:
3281 CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
3282
3283void
3284cede_to (...)
3285 CODE:
3286 CORO_EXECUTE_SLF_XS (slf_init_cede_to);
2631 3287
2632void 3288void
2633cede (...) 3289cede (...)
2634 CODE: 3290 CODE:
2635 CORO_EXECUTE_SLF_XS (slf_init_cede); 3291 CORO_EXECUTE_SLF_XS (slf_init_cede);
… …
2690 CODE: 3346 CODE:
2691 RETVAL = coro_nready; 3347 RETVAL = coro_nready;
2692 OUTPUT: 3348 OUTPUT:
2693 RETVAL 3349 RETVAL
2694 3350
2695# for async_pool speedup
2696void 3351void
2697_pool_1 (SV *cb) 3352suspend (Coro::State self)
3353 PROTOTYPE: $
2698 CODE: 3354 CODE:
2699{ 3355 self->flags |= CF_SUSPENDED;
2700 HV *hv = (HV *)SvRV (coro_current);
2701 struct coro *coro = SvSTATE_hv ((SV *)hv);
2702 AV *defav = GvAV (PL_defgv);
2703 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2704 AV *invoke_av;
2705 int i, len;
2706 3356
2707 if (!invoke) 3357void
3358resume (Coro::State self)
3359 PROTOTYPE: $
3360 CODE:
3361 self->flags &= ~CF_SUSPENDED;
3362
3363void
3364_pool_handler (...)
3365 CODE:
3366 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3367
3368void
3369async_pool (SV *cv, ...)
3370 PROTOTYPE: &@
3371 PPCODE:
3372{
3373 HV *hv = (HV *)av_pop (av_async_pool);
3374 AV *av = newAV ();
3375 SV *cb = ST (0);
3376 int i;
3377
3378 av_extend (av, items - 2);
3379 for (i = 1; i < items; ++i)
3380 av_push (av, SvREFCNT_inc_NN (ST (i)));
3381
3382 if ((SV *)hv == &PL_sv_undef)
2708 { 3383 {
2709 SV *old = PL_diehook; 3384 PUSHMARK (SP);
2710 PL_diehook = 0; 3385 EXTEND (SP, 2);
2711 SvREFCNT_dec (old); 3386 PUSHs (sv_Coro);
2712 croak ("\3async_pool terminate\2\n"); 3387 PUSHs ((SV *)cv_pool_handler);
3388 PUTBACK;
3389 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3390 SPAGAIN;
3391
3392 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
2713 } 3393 }
2714 3394
2715 SvREFCNT_dec (coro->saved_deffh);
2716 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2717
2718 hv_store (hv, "desc", sizeof ("desc") - 1,
2719 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2720
2721 invoke_av = (AV *)SvRV (invoke);
2722 len = av_len (invoke_av);
2723
2724 sv_setsv (cb, AvARRAY (invoke_av)[0]);
2725
2726 if (len > 0)
2727 { 3395 {
2728 av_fill (defav, len - 1); 3396 struct coro *coro = SvSTATE_hv (hv);
2729 for (i = 0; i < len; ++i) 3397
2730 av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); 3398 assert (!coro->invoke_cb);
3399 assert (!coro->invoke_av);
3400 coro->invoke_cb = SvREFCNT_inc (cb);
3401 coro->invoke_av = av;
2731 } 3402 }
3403
3404 api_ready (aTHX_ (SV *)hv);
3405
3406 if (GIMME_V != G_VOID)
3407 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3408 else
3409 SvREFCNT_dec (hv);
2732} 3410}
3411
3412SV *
3413rouse_cb ()
3414 PROTOTYPE:
3415 CODE:
3416 RETVAL = coro_new_rouse_cb (aTHX);
3417 OUTPUT:
3418 RETVAL
2733 3419
2734void 3420void
2735_pool_2 (SV *cb) 3421rouse_wait (...)
3422 PROTOTYPE: ;$
3423 PPCODE:
3424 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3425
3426void
3427on_enter (SV *block)
3428 ALIAS:
3429 on_leave = 1
3430 PROTOTYPE: &
2736 CODE: 3431 CODE:
2737{ 3432{
2738 HV *hv = (HV *)SvRV (coro_current);
2739 struct coro *coro = SvSTATE_hv ((SV *)hv); 3433 struct coro *coro = SvSTATE_current;
3434 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
2740 3435
2741 sv_setsv (cb, &PL_sv_undef); 3436 block = (SV *)coro_sv_2cv (aTHX_ block);
2742 3437
2743 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 3438 if (!*avp)
2744 coro->saved_deffh = 0; 3439 *avp = newAV ();
2745 3440
2746 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 3441 av_push (*avp, SvREFCNT_inc (block));
2747 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2748 {
2749 SV *old = PL_diehook;
2750 PL_diehook = 0;
2751 SvREFCNT_dec (old);
2752 croak ("\3async_pool terminate\2\n");
2753 }
2754 3442
2755 av_clear (GvAV (PL_defgv)); 3443 if (!ix)
2756 hv_store (hv, "desc", sizeof ("desc") - 1, 3444 on_enterleave_call (aTHX_ block);
2757 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
2758 3445
2759 coro->prio = 0; 3446 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
2760 3447 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
2761 if (coro->cctx && (coro->cctx->flags & CC_TRACE)) 3448 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
2762 api_trace (aTHX_ coro_current, 0);
2763
2764 av_push (av_async_pool, newSVsv (coro_current));
2765} 3449}
2766 3450
2767 3451
2768MODULE = Coro::State PACKAGE = PerlIO::cede 3452MODULE = Coro::State PACKAGE = PerlIO::cede
2769 3453
… …
2772 3456
2773 3457
2774MODULE = Coro::State PACKAGE = Coro::Semaphore 3458MODULE = Coro::State PACKAGE = Coro::Semaphore
2775 3459
2776SV * 3460SV *
2777new (SV *klass, SV *count_ = 0) 3461new (SV *klass, SV *count = 0)
2778 CODE: 3462 CODE:
2779{ 3463 RETVAL = sv_bless (
2780 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 3464 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),
2781 AV *av = newAV (); 3465 GvSTASH (CvGV (cv))
2782 SV **ary; 3466 );
3467 OUTPUT:
3468 RETVAL
2783 3469
2784 /* unfortunately, building manually saves memory */ 3470# helper for Coro::Channel and others
2785 Newx (ary, 2, SV *); 3471SV *
2786 AvALLOC (av) = ary; 3472_alloc (int count)
2787 AvARRAY (av) = ary; 3473 CODE:
2788 AvMAX (av) = 1; 3474 RETVAL = coro_waitarray_new (aTHX_ count);
2789 AvFILLp (av) = 0;
2790 ary [0] = newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1);
2791
2792 RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv)));
2793}
2794 OUTPUT: 3475 OUTPUT:
2795 RETVAL 3476 RETVAL
2796 3477
2797SV * 3478SV *
2798count (SV *self) 3479count (SV *self)
… …
2807 adjust = 1 3488 adjust = 1
2808 CODE: 3489 CODE:
2809 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); 3490 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2810 3491
2811void 3492void
2812down (SV *self) 3493down (...)
2813 CODE: 3494 CODE:
2814 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); 3495 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
3496
3497void
3498wait (...)
3499 CODE:
3500 CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
2815 3501
2816void 3502void
2817try (SV *self) 3503try (SV *self)
2818 PPCODE: 3504 PPCODE:
2819{ 3505{
… …
2831 XSRETURN_NO; 3517 XSRETURN_NO;
2832} 3518}
2833 3519
2834void 3520void
2835waiters (SV *self) 3521waiters (SV *self)
2836 CODE: 3522 PPCODE:
2837{ 3523{
2838 AV *av = (AV *)SvRV (self); 3524 AV *av = (AV *)SvRV (self);
3525 int wcount = AvFILLp (av) + 1 - 1;
2839 3526
2840 if (GIMME_V == G_SCALAR) 3527 if (GIMME_V == G_SCALAR)
2841 XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); 3528 XPUSHs (sv_2mortal (newSViv (wcount)));
2842 else 3529 else
2843 { 3530 {
2844 int i; 3531 int i;
2845 EXTEND (SP, AvFILLp (av) + 1 - 1); 3532 EXTEND (SP, wcount);
2846 for (i = 1; i <= AvFILLp (av); ++i) 3533 for (i = 1; i <= wcount; ++i)
2847 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 3534 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
2848 } 3535 }
2849} 3536}
3537
3538MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
3539
3540void
3541_may_delete (SV *sem, int count, int extra_refs)
3542 PPCODE:
3543{
3544 AV *av = (AV *)SvRV (sem);
3545
3546 if (SvREFCNT ((SV *)av) == 1 + extra_refs
3547 && AvFILLp (av) == 0 /* no waiters, just count */
3548 && SvIV (AvARRAY (av)[0]) == count)
3549 XSRETURN_YES;
3550
3551 XSRETURN_NO;
3552}
3553
3554MODULE = Coro::State PACKAGE = Coro::Signal
3555
3556SV *
3557new (SV *klass)
3558 CODE:
3559 RETVAL = sv_bless (
3560 coro_waitarray_new (aTHX_ 0),
3561 GvSTASH (CvGV (cv))
3562 );
3563 OUTPUT:
3564 RETVAL
3565
3566void
3567wait (...)
3568 CODE:
3569 CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
3570
3571void
3572broadcast (SV *self)
3573 CODE:
3574{
3575 AV *av = (AV *)SvRV (self);
3576 coro_signal_wake (aTHX_ av, AvFILLp (av));
3577}
3578
3579void
3580send (SV *self)
3581 CODE:
3582{
3583 AV *av = (AV *)SvRV (self);
3584
3585 if (AvFILLp (av))
3586 coro_signal_wake (aTHX_ av, 1);
3587 else
3588 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3589}
3590
3591IV
3592awaited (SV *self)
3593 CODE:
3594 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3595 OUTPUT:
3596 RETVAL
2850 3597
2851 3598
2852MODULE = Coro::State PACKAGE = Coro::AnyEvent 3599MODULE = Coro::State PACKAGE = Coro::AnyEvent
2853 3600
2854BOOT: 3601BOOT:
… …
2882 3629
2883void 3630void
2884_register (char *target, char *proto, SV *req) 3631_register (char *target, char *proto, SV *req)
2885 CODE: 3632 CODE:
2886{ 3633{
2887 HV *st; 3634 CV *req_cv = coro_sv_2cv (aTHX_ req);
2888 GV *gvp;
2889 CV *req_cv = sv_2cv (req, &st, &gvp, 0);
2890 /* newXSproto doesn't return the CV on 5.8 */ 3635 /* newXSproto doesn't return the CV on 5.8 */
2891 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 3636 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
2892 sv_setpv ((SV *)slf_cv, proto); 3637 sv_setpv ((SV *)slf_cv, proto);
2893 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 3638 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
2894} 3639}

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