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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.291 by root, Tue Nov 18 05:55:04 2008 UTC vs.
Revision 1.338 by root, Sun Dec 7 15:33:21 2008 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
… …
120#endif 126#endif
121 127
122/* The next macros try to return the current stack pointer, in an as 128/* The next macros try to return the current stack pointer, in an as
123 * portable way as possible. */ 129 * portable way as possible. */
124#if __GNUC__ >= 4 130#if __GNUC__ >= 4
131# define dSTACKLEVEL int stacklevel_dummy
125# define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0) 132# define STACKLEVEL __builtin_frame_address (0)
126#else 133#else
127# define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel 134# define dSTACKLEVEL volatile void *stacklevel
135# define STACKLEVEL ((void *)&stacklevel)
128#endif 136#endif
129 137
130#define IN_DESTRUCT (PL_main_cv == Nullcv) 138#define IN_DESTRUCT PL_dirty
131 139
132#if __GNUC__ >= 3 140#if __GNUC__ >= 3
133# define attribute(x) __attribute__(x) 141# define attribute(x) __attribute__(x)
134# define expect(expr,value) __builtin_expect ((expr),(value)) 142# define expect(expr,value) __builtin_expect ((expr),(value))
135# define INLINE static inline 143# define INLINE static inline
… …
143#define expect_true(expr) expect ((expr) != 0, 1) 151#define expect_true(expr) expect ((expr) != 0, 1)
144 152
145#define NOINLINE attribute ((noinline)) 153#define NOINLINE attribute ((noinline))
146 154
147#include "CoroAPI.h" 155#include "CoroAPI.h"
156#define GCoroAPI (&coroapi) /* very sneaky */
148 157
149#ifdef USE_ITHREADS 158#ifdef USE_ITHREADS
150# if CORO_PTHREAD 159# if CORO_PTHREAD
151static void *coro_thx; 160static void *coro_thx;
152# endif 161# endif
… …
164static AV *main_mainstack; /* used to differentiate between $main and others */ 173static AV *main_mainstack; /* used to differentiate between $main and others */
165static JMPENV *main_top_env; 174static JMPENV *main_top_env;
166static HV *coro_state_stash, *coro_stash; 175static HV *coro_state_stash, *coro_stash;
167static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 176static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
168 177
178static AV *av_destroy; /* destruction queue */
179static SV *sv_manager; /* the manager coro */
180static SV *sv_idle; /* $Coro::idle */
181
169static GV *irsgv; /* $/ */ 182static GV *irsgv; /* $/ */
170static GV *stdoutgv; /* *STDOUT */ 183static GV *stdoutgv; /* *STDOUT */
171static SV *rv_diehook; 184static SV *rv_diehook;
172static SV *rv_warnhook; 185static SV *rv_warnhook;
173static HV *hv_sig; /* %SIG */ 186static HV *hv_sig; /* %SIG */
174 187
175/* async_pool helper stuff */ 188/* async_pool helper stuff */
176static SV *sv_pool_rss; 189static SV *sv_pool_rss;
177static SV *sv_pool_size; 190static SV *sv_pool_size;
191static SV *sv_async_pool_idle; /* description string */
178static 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;
179 196
180/* Coro::AnyEvent */ 197/* Coro::AnyEvent */
181static SV *sv_activity; 198static SV *sv_activity;
182 199
183static struct coro_cctx *cctx_first; 200static struct coro_cctx *cctx_first;
… …
212 int valgrind_id; 229 int valgrind_id;
213#endif 230#endif
214 unsigned char flags; 231 unsigned char flags;
215} coro_cctx; 232} coro_cctx;
216 233
234coro_cctx *cctx_current; /* the currently running cctx */
235
236/*****************************************************************************/
237
217enum { 238enum {
218 CF_RUNNING = 0x0001, /* coroutine is running */ 239 CF_RUNNING = 0x0001, /* coroutine is running */
219 CF_READY = 0x0002, /* coroutine is ready */ 240 CF_READY = 0x0002, /* coroutine is ready */
220 CF_NEW = 0x0004, /* has never been switched to */ 241 CF_NEW = 0x0004, /* has never been switched to */
221 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 242 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
… …
226{ 247{
227 SV *defsv; 248 SV *defsv;
228 AV *defav; 249 AV *defav;
229 SV *errsv; 250 SV *errsv;
230 SV *irsgv; 251 SV *irsgv;
252 HV *hinthv;
231#define VAR(name,type) type name; 253#define VAR(name,type) type name;
232# include "state.h" 254# include "state.h"
233#undef VAR 255#undef VAR
234} perl_slots; 256} perl_slots;
235 257
… …
243 /* state data */ 265 /* state data */
244 struct CoroSLF slf_frame; /* saved slf frame */ 266 struct CoroSLF slf_frame; /* saved slf frame */
245 AV *mainstack; 267 AV *mainstack;
246 perl_slots *slot; /* basically the saved sp */ 268 perl_slots *slot; /* basically the saved sp */
247 269
270 CV *startcv; /* the CV to execute */
248 AV *args; /* data associated with this coroutine (initial args) */ 271 AV *args; /* data associated with this coroutine (initial args) */
249 int refcnt; /* coroutines are refcounted, yes */ 272 int refcnt; /* coroutines are refcounted, yes */
250 int flags; /* CF_ flags */ 273 int flags; /* CF_ flags */
251 HV *hv; /* the perl hash associated with this coro, if any */ 274 HV *hv; /* the perl hash associated with this coro, if any */
252 void (*on_destroy)(pTHX_ struct coro *coro); 275 void (*on_destroy)(pTHX_ struct coro *coro);
253 276
254 /* statistics */ 277 /* statistics */
255 int usecount; /* number of transfers to this coro */ 278 int usecount; /* number of transfers to this coro */
256 279
257 /* coro process data */ 280 /* coro process data */
258 int prio; 281 int prio;
259 SV *throw; /* exception to be thrown */ 282 SV *except; /* exception to be thrown */
283 SV *rouse_cb;
260 284
261 /* async_pool */ 285 /* async_pool */
262 SV *saved_deffh; 286 SV *saved_deffh;
287 SV *invoke_cb;
288 AV *invoke_av;
263 289
264 /* linked list */ 290 /* linked list */
265 struct coro *next, *prev; 291 struct coro *next, *prev;
266}; 292};
267 293
… …
270 296
271/* the following variables are effectively part of the perl context */ 297/* the following variables are effectively part of the perl context */
272/* and get copied between struct coro and these variables */ 298/* and get copied between struct coro and these variables */
273/* the mainr easonw e don't support windows process emulation */ 299/* the mainr easonw e don't support windows process emulation */
274static struct CoroSLF slf_frame; /* the current slf frame */ 300static struct CoroSLF slf_frame; /* the current slf frame */
275static SV *coro_throw;
276 301
277/** Coro ********************************************************************/ 302/** Coro ********************************************************************/
278 303
279#define PRIO_MAX 3 304#define PRIO_MAX 3
280#define PRIO_HIGH 1 305#define PRIO_HIGH 1
… …
285 310
286/* for Coro.pm */ 311/* for Coro.pm */
287static SV *coro_current; 312static SV *coro_current;
288static SV *coro_readyhook; 313static SV *coro_readyhook;
289static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 314static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
315static CV *cv_coro_run, *cv_coro_terminate;
290static struct coro *coro_first; 316static struct coro *coro_first;
291#define coro_nready coroapi.nready 317#define coro_nready coroapi.nready
292 318
293/** lowlevel stuff **********************************************************/ 319/** lowlevel stuff **********************************************************/
294 320
… …
320 get_hv (name, create); 346 get_hv (name, create);
321#endif 347#endif
322 return get_hv (name, create); 348 return get_hv (name, create);
323} 349}
324 350
351/* may croak */
352INLINE CV *
353coro_sv_2cv (pTHX_ SV *sv)
354{
355 HV *st;
356 GV *gvp;
357 return sv_2cv (sv, &st, &gvp, 0);
358}
359
360/*****************************************************************************/
361/* magic glue */
362
363#define CORO_MAGIC_type_cv 26
364#define CORO_MAGIC_type_state PERL_MAGIC_ext
365
366#define CORO_MAGIC_NN(sv, type) \
367 (expect_true (SvMAGIC (sv)->mg_type == type) \
368 ? SvMAGIC (sv) \
369 : mg_find (sv, type))
370
371#define CORO_MAGIC(sv, type) \
372 (expect_true (SvMAGIC (sv)) \
373 ? CORO_MAGIC_NN (sv, type) \
374 : 0)
375
376#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
377#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
378
379INLINE struct coro *
380SvSTATE_ (pTHX_ SV *coro)
381{
382 HV *stash;
383 MAGIC *mg;
384
385 if (SvROK (coro))
386 coro = SvRV (coro);
387
388 if (expect_false (SvTYPE (coro) != SVt_PVHV))
389 croak ("Coro::State object required");
390
391 stash = SvSTASH (coro);
392 if (expect_false (stash != coro_stash && stash != coro_state_stash))
393 {
394 /* very slow, but rare, check */
395 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
396 croak ("Coro::State object required");
397 }
398
399 mg = CORO_MAGIC_state (coro);
400 return (struct coro *)mg->mg_ptr;
401}
402
403#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
404
405/* faster than SvSTATE, but expects a coroutine hv */
406#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
407#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
408
409/*****************************************************************************/
410/* padlist management and caching */
411
325static AV * 412static AV *
326coro_clone_padlist (pTHX_ CV *cv) 413coro_derive_padlist (pTHX_ CV *cv)
327{ 414{
328 AV *padlist = CvPADLIST (cv); 415 AV *padlist = CvPADLIST (cv);
329 AV *newpadlist, *newpad; 416 AV *newpadlist, *newpad;
330 417
331 newpadlist = newAV (); 418 newpadlist = newAV ();
… …
336 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 423 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
337#endif 424#endif
338 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 425 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
339 --AvFILLp (padlist); 426 --AvFILLp (padlist);
340 427
341 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); 428 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
342 av_store (newpadlist, 1, (SV *)newpad); 429 av_store (newpadlist, 1, (SV *)newpad);
343 430
344 return newpadlist; 431 return newpadlist;
345} 432}
346 433
347static void 434static void
348free_padlist (pTHX_ AV *padlist) 435free_padlist (pTHX_ AV *padlist)
349{ 436{
350 /* may be during global destruction */ 437 /* may be during global destruction */
351 if (SvREFCNT (padlist)) 438 if (!IN_DESTRUCT)
352 { 439 {
353 I32 i = AvFILLp (padlist); 440 I32 i = AvFILLp (padlist);
354 while (i >= 0) 441
442 while (i > 0) /* special-case index 0 */
355 { 443 {
356 SV **svp = av_fetch (padlist, i--, FALSE); 444 /* we try to be extra-careful here */
357 if (svp) 445 AV *av = (AV *)AvARRAY (padlist)[i--];
358 { 446 I32 j = AvFILLp (av);
359 SV *sv; 447
360 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) 448 while (j >= 0)
449 SvREFCNT_dec (AvARRAY (av)[j--]);
450
451 AvFILLp (av) = -1;
361 SvREFCNT_dec (sv); 452 SvREFCNT_dec (av);
362
363 SvREFCNT_dec (*svp);
364 }
365 } 453 }
366 454
455 SvREFCNT_dec (AvARRAY (padlist)[0]);
456
457 AvFILLp (padlist) = -1;
367 SvREFCNT_dec ((SV*)padlist); 458 SvREFCNT_dec ((SV*)padlist);
368 } 459 }
369} 460}
370 461
371static int 462static int
… …
380 471
381 SvREFCNT_dec (av); /* sv_magicext increased the refcount */ 472 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
382 473
383 return 0; 474 return 0;
384} 475}
385
386#define CORO_MAGIC_type_cv 26
387#define CORO_MAGIC_type_state PERL_MAGIC_ext
388 476
389static MGVTBL coro_cv_vtbl = { 477static MGVTBL coro_cv_vtbl = {
390 0, 0, 0, 0, 478 0, 0, 0, 0,
391 coro_cv_free 479 coro_cv_free
392}; 480};
393
394#define CORO_MAGIC_NN(sv, type) \
395 (expect_true (SvMAGIC (sv)->mg_type == type) \
396 ? SvMAGIC (sv) \
397 : mg_find (sv, type))
398
399#define CORO_MAGIC(sv, type) \
400 (expect_true (SvMAGIC (sv)) \
401 ? CORO_MAGIC_NN (sv, type) \
402 : 0)
403
404#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
405#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
406
407INLINE struct coro *
408SvSTATE_ (pTHX_ SV *coro)
409{
410 HV *stash;
411 MAGIC *mg;
412
413 if (SvROK (coro))
414 coro = SvRV (coro);
415
416 if (expect_false (SvTYPE (coro) != SVt_PVHV))
417 croak ("Coro::State object required");
418
419 stash = SvSTASH (coro);
420 if (expect_false (stash != coro_stash && stash != coro_state_stash))
421 {
422 /* very slow, but rare, check */
423 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
424 croak ("Coro::State object required");
425 }
426
427 mg = CORO_MAGIC_state (coro);
428 return (struct coro *)mg->mg_ptr;
429}
430
431#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
432
433/* faster than SvSTATE, but expects a coroutine hv */
434#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
435#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
436 481
437/* the next two functions merely cache the padlists */ 482/* the next two functions merely cache the padlists */
438static void 483static void
439get_padlist (pTHX_ CV *cv) 484get_padlist (pTHX_ CV *cv)
440{ 485{
… …
446 else 491 else
447 { 492 {
448#if CORO_PREFER_PERL_FUNCTIONS 493#if CORO_PREFER_PERL_FUNCTIONS
449 /* this is probably cleaner? but also slower! */ 494 /* this is probably cleaner? but also slower! */
450 /* in practise, it seems to be less stable */ 495 /* in practise, it seems to be less stable */
451 CV *cp = Perl_cv_clone (cv); 496 CV *cp = Perl_cv_clone (aTHX_ cv);
452 CvPADLIST (cv) = CvPADLIST (cp); 497 CvPADLIST (cv) = CvPADLIST (cp);
453 CvPADLIST (cp) = 0; 498 CvPADLIST (cp) = 0;
454 SvREFCNT_dec (cp); 499 SvREFCNT_dec (cp);
455#else 500#else
456 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 501 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
457#endif 502#endif
458 } 503 }
459} 504}
460 505
461static void 506static void
… …
468 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 513 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
469 514
470 av = (AV *)mg->mg_obj; 515 av = (AV *)mg->mg_obj;
471 516
472 if (expect_false (AvFILLp (av) >= AvMAX (av))) 517 if (expect_false (AvFILLp (av) >= AvMAX (av)))
473 av_extend (av, AvMAX (av) + 1); 518 av_extend (av, AvFILLp (av) + 1);
474 519
475 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 520 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
476} 521}
477 522
478/** load & save, init *******************************************************/ 523/** load & save, init *******************************************************/
… …
483 perl_slots *slot = c->slot; 528 perl_slots *slot = c->slot;
484 c->slot = 0; 529 c->slot = 0;
485 530
486 PL_mainstack = c->mainstack; 531 PL_mainstack = c->mainstack;
487 532
488 GvSV (PL_defgv) = slot->defsv; 533 GvSV (PL_defgv) = slot->defsv;
489 GvAV (PL_defgv) = slot->defav; 534 GvAV (PL_defgv) = slot->defav;
490 GvSV (PL_errgv) = slot->errsv; 535 GvSV (PL_errgv) = slot->errsv;
491 GvSV (irsgv) = slot->irsgv; 536 GvSV (irsgv) = slot->irsgv;
537 GvHV (PL_hintgv) = slot->hinthv;
492 538
493 #define VAR(name,type) PL_ ## name = slot->name; 539 #define VAR(name,type) PL_ ## name = slot->name;
494 # include "state.h" 540 # include "state.h"
495 #undef VAR 541 #undef VAR
496 542
… …
509 555
510 PUTBACK; 556 PUTBACK;
511 } 557 }
512 558
513 slf_frame = c->slf_frame; 559 slf_frame = c->slf_frame;
514 coro_throw = c->throw; 560 CORO_THROW = c->except;
515} 561}
516 562
517static void 563static void
518save_perl (pTHX_ Coro__State c) 564save_perl (pTHX_ Coro__State c)
519{ 565{
520 c->throw = coro_throw; 566 c->except = CORO_THROW;
521 c->slf_frame = slf_frame; 567 c->slf_frame = slf_frame;
522 568
523 { 569 {
524 dSP; 570 dSP;
525 I32 cxix = cxstack_ix; 571 I32 cxix = cxstack_ix;
… …
582 c->mainstack = PL_mainstack; 628 c->mainstack = PL_mainstack;
583 629
584 { 630 {
585 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 631 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
586 632
587 slot->defav = GvAV (PL_defgv); 633 slot->defav = GvAV (PL_defgv);
588 slot->defsv = DEFSV; 634 slot->defsv = DEFSV;
589 slot->errsv = ERRSV; 635 slot->errsv = ERRSV;
590 slot->irsgv = GvSV (irsgv); 636 slot->irsgv = GvSV (irsgv);
637 slot->hinthv = GvHV (PL_hintgv);
591 638
592 #define VAR(name,type) slot->name = PL_ ## name; 639 #define VAR(name,type) slot->name = PL_ ## name;
593 # include "state.h" 640 # include "state.h"
594 #undef VAR 641 #undef VAR
595 } 642 }
… …
600 * of perl.c:init_stacks, except that it uses less memory 647 * of perl.c:init_stacks, except that it uses less memory
601 * on the (sometimes correct) assumption that coroutines do 648 * on the (sometimes correct) assumption that coroutines do
602 * not usually need a lot of stackspace. 649 * not usually need a lot of stackspace.
603 */ 650 */
604#if CORO_PREFER_PERL_FUNCTIONS 651#if CORO_PREFER_PERL_FUNCTIONS
605# define coro_init_stacks init_stacks 652# define coro_init_stacks(thx) init_stacks ()
606#else 653#else
607static void 654static void
608coro_init_stacks (pTHX) 655coro_init_stacks (pTHX)
609{ 656{
610 PL_curstackinfo = new_stackinfo(32, 8); 657 PL_curstackinfo = new_stackinfo(32, 8);
… …
673#if !PERL_VERSION_ATLEAST (5,10,0) 720#if !PERL_VERSION_ATLEAST (5,10,0)
674 Safefree (PL_retstack); 721 Safefree (PL_retstack);
675#endif 722#endif
676} 723}
677 724
725#define CORO_RSS \
726 rss += sizeof (SYM (curstackinfo)); \
727 rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
728 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
729 rss += SYM (tmps_max) * sizeof (SV *); \
730 rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
731 rss += SYM (scopestack_max) * sizeof (I32); \
732 rss += SYM (savestack_max) * sizeof (ANY);
733
678static size_t 734static size_t
679coro_rss (pTHX_ struct coro *coro) 735coro_rss (pTHX_ struct coro *coro)
680{ 736{
681 size_t rss = sizeof (*coro); 737 size_t rss = sizeof (*coro);
682 738
683 if (coro->mainstack) 739 if (coro->mainstack)
684 { 740 {
685 perl_slots tmp_slot;
686 perl_slots *slot;
687
688 if (coro->flags & CF_RUNNING) 741 if (coro->flags & CF_RUNNING)
689 { 742 {
690 slot = &tmp_slot; 743 #define SYM(sym) PL_ ## sym
691 744 CORO_RSS;
692 #define VAR(name,type) slot->name = PL_ ## name;
693 # include "state.h"
694 #undef VAR 745 #undef SYM
695 } 746 }
696 else 747 else
697 slot = coro->slot;
698
699 if (slot)
700 { 748 {
701 rss += sizeof (slot->curstackinfo); 749 #define SYM(sym) coro->slot->sym
702 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); 750 CORO_RSS;
703 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); 751 #undef SYM
704 rss += slot->tmps_max * sizeof (SV *);
705 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
706 rss += slot->scopestack_max * sizeof (I32);
707 rss += slot->savestack_max * sizeof (ANY);
708
709#if !PERL_VERSION_ATLEAST (5,10,0)
710 rss += slot->retstack_max * sizeof (OP *);
711#endif
712 } 752 }
713 } 753 }
714 754
715 return rss; 755 return rss;
716} 756}
… …
729#endif 769#endif
730 770
731/* 771/*
732 * This overrides the default magic get method of %SIG elements. 772 * This overrides the default magic get method of %SIG elements.
733 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 773 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
734 * and instead of tryign to save and restore the hash elements, we just provide 774 * and instead of trying to save and restore the hash elements, we just provide
735 * readback here. 775 * readback here.
736 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
737 * not expecting this to actually change the hook. This is a potential problem
738 * when a schedule happens then, but we ignore this.
739 */ 776 */
740static int 777static int
741coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 778coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
742{ 779{
743 const char *s = MgPV_nolen_const (mg); 780 const char *s = MgPV_nolen_const (mg);
… …
796 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 833 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
797 834
798 if (svp) 835 if (svp)
799 { 836 {
800 SV *old = *svp; 837 SV *old = *svp;
801 *svp = newSVsv (sv); 838 *svp = SvOK (sv) ? newSVsv (sv) : 0;
802 SvREFCNT_dec (old); 839 SvREFCNT_dec (old);
803 return 0; 840 return 0;
804 } 841 }
805 } 842 }
806 843
… …
816 853
817static int 854static int
818slf_check_nop (pTHX_ struct CoroSLF *frame) 855slf_check_nop (pTHX_ struct CoroSLF *frame)
819{ 856{
820 return 0; 857 return 0;
858}
859
860static int
861slf_check_repeat (pTHX_ struct CoroSLF *frame)
862{
863 return 1;
821} 864}
822 865
823static UNOP coro_setup_op; 866static UNOP coro_setup_op;
824 867
825static void NOINLINE /* noinline to keep it out of the transfer fast path */ 868static void NOINLINE /* noinline to keep it out of the transfer fast path */
… …
832 875
833 PL_runops = RUNOPS_DEFAULT; 876 PL_runops = RUNOPS_DEFAULT;
834 PL_curcop = &PL_compiling; 877 PL_curcop = &PL_compiling;
835 PL_in_eval = EVAL_NULL; 878 PL_in_eval = EVAL_NULL;
836 PL_comppad = 0; 879 PL_comppad = 0;
880 PL_comppad_name = 0;
881 PL_comppad_name_fill = 0;
882 PL_comppad_name_floor = 0;
837 PL_curpm = 0; 883 PL_curpm = 0;
838 PL_curpad = 0; 884 PL_curpad = 0;
839 PL_localizing = 0; 885 PL_localizing = 0;
840 PL_dirty = 0; 886 PL_dirty = 0;
841 PL_restartop = 0; 887 PL_restartop = 0;
842#if PERL_VERSION_ATLEAST (5,10,0) 888#if PERL_VERSION_ATLEAST (5,10,0)
843 PL_parser = 0; 889 PL_parser = 0;
844#endif 890#endif
891 PL_hints = 0;
845 892
846 /* recreate the die/warn hooks */ 893 /* recreate the die/warn hooks */
847 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 894 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
848 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 895 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
849 896
850 GvSV (PL_defgv) = newSV (0); 897 GvSV (PL_defgv) = newSV (0);
851 GvAV (PL_defgv) = coro->args; coro->args = 0; 898 GvAV (PL_defgv) = coro->args; coro->args = 0;
852 GvSV (PL_errgv) = newSV (0); 899 GvSV (PL_errgv) = newSV (0);
853 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 900 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
901 GvHV (PL_hintgv) = 0;
854 PL_rs = newSVsv (GvSV (irsgv)); 902 PL_rs = newSVsv (GvSV (irsgv));
855 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 903 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
856 904
857 { 905 {
858 dSP; 906 dSP;
859 UNOP myop; 907 UNOP myop;
860 908
861 Zero (&myop, 1, UNOP); 909 Zero (&myop, 1, UNOP);
862 myop.op_next = Nullop; 910 myop.op_next = Nullop;
911 myop.op_type = OP_ENTERSUB;
863 myop.op_flags = OPf_WANT_VOID; 912 myop.op_flags = OPf_WANT_VOID;
864 913
865 PUSHMARK (SP); 914 PUSHMARK (SP);
866 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); 915 PUSHs ((SV *)coro->startcv);
867 PUTBACK; 916 PUTBACK;
868 PL_op = (OP *)&myop; 917 PL_op = (OP *)&myop;
869 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 918 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
870 SPAGAIN;
871 } 919 }
872 920
873 /* this newly created coroutine might be run on an existing cctx which most 921 /* this newly created coroutine might be run on an existing cctx which most
874 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 922 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
875 */ 923 */
876 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 924 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
877 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 925 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
878 926
879 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 927 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
928 coro_setup_op.op_next = PL_op;
880 coro_setup_op.op_type = OP_CUSTOM; 929 coro_setup_op.op_type = OP_ENTERSUB;
881 coro_setup_op.op_ppaddr = pp_slf; 930 coro_setup_op.op_ppaddr = pp_slf;
882 coro_setup_op.op_next = PL_op; 931 /* no flags etc. required, as an init function won't be called */
883 932
884 PL_op = (OP *)&coro_setup_op; 933 PL_op = (OP *)&coro_setup_op;
885 934
886 /* copy throw, in case it was set before coro_setup */ 935 /* copy throw, in case it was set before coro_setup */
887 coro_throw = coro->throw; 936 CORO_THROW = coro->except;
888} 937}
889 938
890static void 939static void
891coro_destruct (pTHX_ struct coro *coro) 940coro_unwind_stacks (pTHX)
892{ 941{
893 if (!IN_DESTRUCT) 942 if (!IN_DESTRUCT)
894 { 943 {
895 /* restore all saved variables and stuff */ 944 /* restore all saved variables and stuff */
896 LEAVE_SCOPE (0); 945 LEAVE_SCOPE (0);
… …
904 POPSTACK_TO (PL_mainstack); 953 POPSTACK_TO (PL_mainstack);
905 954
906 /* unwind main stack */ 955 /* unwind main stack */
907 dounwind (-1); 956 dounwind (-1);
908 } 957 }
958}
959
960static void
961coro_destruct_perl (pTHX_ struct coro *coro)
962{
963 coro_unwind_stacks (aTHX);
909 964
910 SvREFCNT_dec (GvSV (PL_defgv)); 965 SvREFCNT_dec (GvSV (PL_defgv));
911 SvREFCNT_dec (GvAV (PL_defgv)); 966 SvREFCNT_dec (GvAV (PL_defgv));
912 SvREFCNT_dec (GvSV (PL_errgv)); 967 SvREFCNT_dec (GvSV (PL_errgv));
913 SvREFCNT_dec (PL_defoutgv); 968 SvREFCNT_dec (PL_defoutgv);
914 SvREFCNT_dec (PL_rs); 969 SvREFCNT_dec (PL_rs);
915 SvREFCNT_dec (GvSV (irsgv)); 970 SvREFCNT_dec (GvSV (irsgv));
971 SvREFCNT_dec (GvHV (PL_hintgv));
916 972
917 SvREFCNT_dec (PL_diehook); 973 SvREFCNT_dec (PL_diehook);
918 SvREFCNT_dec (PL_warnhook); 974 SvREFCNT_dec (PL_warnhook);
919 975
920 SvREFCNT_dec (coro->saved_deffh); 976 SvREFCNT_dec (coro->saved_deffh);
921 SvREFCNT_dec (coro_throw); 977 SvREFCNT_dec (coro->rouse_cb);
978 SvREFCNT_dec (coro->invoke_cb);
979 SvREFCNT_dec (coro->invoke_av);
922 980
923 coro_destruct_stacks (aTHX); 981 coro_destruct_stacks (aTHX);
924} 982}
925 983
926INLINE void 984INLINE void
… …
936static int 994static int
937runops_trace (pTHX) 995runops_trace (pTHX)
938{ 996{
939 COP *oldcop = 0; 997 COP *oldcop = 0;
940 int oldcxix = -2; 998 int oldcxix = -2;
941 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
942 coro_cctx *cctx = coro->cctx;
943 999
944 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 1000 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
945 { 1001 {
946 PERL_ASYNC_CHECK (); 1002 PERL_ASYNC_CHECK ();
947 1003
948 if (cctx->flags & CC_TRACE_ALL) 1004 if (cctx_current->flags & CC_TRACE_ALL)
949 { 1005 {
950 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) 1006 if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
951 { 1007 {
952 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1008 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
953 SV **bot, **top; 1009 SV **bot, **top;
954 AV *av = newAV (); /* return values */ 1010 AV *av = newAV (); /* return values */
955 SV **cb; 1011 SV **cb;
… …
992 1048
993 if (PL_curcop != &PL_compiling) 1049 if (PL_curcop != &PL_compiling)
994 { 1050 {
995 SV **cb; 1051 SV **cb;
996 1052
997 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 1053 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
998 { 1054 {
999 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1055 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1000 1056
1001 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1057 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1002 { 1058 {
1003 runops_proc_t old_runops = PL_runops;
1004 dSP; 1059 dSP;
1005 GV *gv = CvGV (cx->blk_sub.cv); 1060 GV *gv = CvGV (cx->blk_sub.cv);
1006 SV *fullname = sv_2mortal (newSV (0)); 1061 SV *fullname = sv_2mortal (newSV (0));
1007 1062
1008 if (isGV (gv)) 1063 if (isGV (gv))
… …
1013 SAVETMPS; 1068 SAVETMPS;
1014 EXTEND (SP, 3); 1069 EXTEND (SP, 3);
1015 PUSHMARK (SP); 1070 PUSHMARK (SP);
1016 PUSHs (&PL_sv_yes); 1071 PUSHs (&PL_sv_yes);
1017 PUSHs (fullname); 1072 PUSHs (fullname);
1018 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); 1073 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1019 PUTBACK; 1074 PUTBACK;
1020 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); 1075 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
1021 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1076 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1022 SPAGAIN; 1077 SPAGAIN;
1023 FREETMPS; 1078 FREETMPS;
… …
1026 } 1081 }
1027 1082
1028 oldcxix = cxstack_ix; 1083 oldcxix = cxstack_ix;
1029 } 1084 }
1030 1085
1031 if (cctx->flags & CC_TRACE_LINE) 1086 if (cctx_current->flags & CC_TRACE_LINE)
1032 { 1087 {
1033 dSP; 1088 dSP;
1034 1089
1035 PL_runops = RUNOPS_DEFAULT; 1090 PL_runops = RUNOPS_DEFAULT;
1036 ENTER; 1091 ENTER;
… …
1055 1110
1056 TAINT_NOT; 1111 TAINT_NOT;
1057 return 0; 1112 return 0;
1058} 1113}
1059 1114
1060static struct coro_cctx *cctx_ssl_cctx;
1061static struct CoroSLF cctx_ssl_frame; 1115static struct CoroSLF cctx_ssl_frame;
1062 1116
1063static void 1117static void
1064slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) 1118slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1065{ 1119{
1066 ta->prev = (struct coro *)cctx_ssl_cctx;
1067 ta->next = 0; 1120 ta->prev = 0;
1068} 1121}
1069 1122
1070static int 1123static int
1071slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) 1124slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1072{ 1125{
1073 *frame = cctx_ssl_frame; 1126 *frame = cctx_ssl_frame;
1074 1127
1075 return 1; 1128 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1076} 1129}
1077 1130
1078/* initialises PL_top_env and injects a pseudo-slf-call to sett he stacklevel */ 1131/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1079static void NOINLINE 1132static void NOINLINE
1080cctx_prepare (pTHX_ coro_cctx *cctx) 1133cctx_prepare (pTHX)
1081{ 1134{
1082 PL_top_env = &PL_start_env; 1135 PL_top_env = &PL_start_env;
1083 1136
1084 if (cctx->flags & CC_TRACE) 1137 if (cctx_current->flags & CC_TRACE)
1085 PL_runops = runops_trace; 1138 PL_runops = runops_trace;
1086 1139
1087 /* we already must be in an SLF call, there is no other valid way 1140 /* we already must be executing an SLF op, there is no other valid way
1088 * that can lead to creation of a new cctx */ 1141 * that can lead to creation of a new cctx */
1089 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", 1142 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1090 slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); 1143 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1091 1144
1092 cctx_ssl_cctx = cctx; 1145 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1093 cctx_ssl_frame = slf_frame; 1146 cctx_ssl_frame = slf_frame;
1094 1147
1095 slf_frame.prepare = slf_prepare_set_stacklevel; 1148 slf_frame.prepare = slf_prepare_set_stacklevel;
1096 slf_frame.check = slf_check_set_stacklevel; 1149 slf_frame.check = slf_check_set_stacklevel;
1097} 1150}
… …
1120 /* normally we would need to skip the entersub here */ 1173 /* normally we would need to skip the entersub here */
1121 /* not doing so will re-execute it, which is exactly what we want */ 1174 /* not doing so will re-execute it, which is exactly what we want */
1122 /* PL_nop = PL_nop->op_next */ 1175 /* PL_nop = PL_nop->op_next */
1123 1176
1124 /* inject a fake subroutine call to cctx_init */ 1177 /* inject a fake subroutine call to cctx_init */
1125 cctx_prepare (aTHX_ (coro_cctx *)arg); 1178 cctx_prepare (aTHX);
1126 1179
1127 /* cctx_run is the alternative tail of transfer() */ 1180 /* cctx_run is the alternative tail of transfer() */
1128 transfer_tail (aTHX); 1181 transfer_tail (aTHX);
1129 1182
1130 /* somebody or something will hit me for both perl_run and PL_restartop */ 1183 /* somebody or something will hit me for both perl_run and PL_restartop */
1131 PL_restartop = PL_op; 1184 PL_restartop = PL_op;
1132 perl_run (PL_curinterp); 1185 perl_run (PL_curinterp);
1186 /*
1187 * Unfortunately, there is no way to get at the return values of the
1188 * coro body here, as perl_run destroys these
1189 */
1133 1190
1134 /* 1191 /*
1135 * If perl-run returns we assume exit() was being called or the coro 1192 * If perl-run returns we assume exit() was being called or the coro
1136 * fell off the end, which seems to be the only valid (non-bug) 1193 * fell off the end, which seems to be the only valid (non-bug)
1137 * reason for perl_run to return. We try to exit by jumping to the 1194 * reason for perl_run to return. We try to exit by jumping to the
1138 * bootstrap-time "top" top_env, as we cannot restore the "main" 1195 * bootstrap-time "top" top_env, as we cannot restore the "main"
1139 * coroutine as Coro has no such concept 1196 * coroutine as Coro has no such concept.
1197 * This actually isn't valid with the pthread backend, but OSes requiring
1198 * that backend are too broken to do it in a standards-compliant way.
1140 */ 1199 */
1141 PL_top_env = main_top_env; 1200 PL_top_env = main_top_env;
1142 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 1201 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1143 } 1202 }
1144} 1203}
… …
1221cctx_destroy (coro_cctx *cctx) 1280cctx_destroy (coro_cctx *cctx)
1222{ 1281{
1223 if (!cctx) 1282 if (!cctx)
1224 return; 1283 return;
1225 1284
1285 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
1286
1226 --cctx_count; 1287 --cctx_count;
1227 coro_destroy (&cctx->cctx); 1288 coro_destroy (&cctx->cctx);
1228 1289
1229 /* coro_transfer creates new, empty cctx's */ 1290 /* coro_transfer creates new, empty cctx's */
1230 if (cctx->sptr) 1291 if (cctx->sptr)
… …
1293 /* TODO: throwing up here is considered harmful */ 1354 /* TODO: throwing up here is considered harmful */
1294 1355
1295 if (expect_true (prev != next)) 1356 if (expect_true (prev != next))
1296 { 1357 {
1297 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1358 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1298 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); 1359 croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,");
1299 1360
1300 if (expect_false (next->flags & CF_RUNNING)) 1361 if (expect_false (next->flags & CF_RUNNING))
1301 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); 1362 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1302 1363
1303 if (expect_false (next->flags & CF_DESTROYED)) 1364 if (expect_false (next->flags & CF_DESTROYED))
… …
1315transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1376transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1316{ 1377{
1317 dSTACKLEVEL; 1378 dSTACKLEVEL;
1318 1379
1319 /* sometimes transfer is only called to set idle_sp */ 1380 /* sometimes transfer is only called to set idle_sp */
1320 if (expect_false (!next)) 1381 if (expect_false (!prev))
1321 { 1382 {
1322 ((coro_cctx *)prev)->idle_sp = (void *)stacklevel; 1383 cctx_current->idle_sp = STACKLEVEL;
1323 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1384 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1324 } 1385 }
1325 else if (expect_true (prev != next)) 1386 else if (expect_true (prev != next))
1326 { 1387 {
1327 coro_cctx *prev__cctx; 1388 coro_cctx *cctx_prev;
1328 1389
1329 if (expect_false (prev->flags & CF_NEW)) 1390 if (expect_false (prev->flags & CF_NEW))
1330 { 1391 {
1331 /* create a new empty/source context */ 1392 /* create a new empty/source context */
1332 prev->cctx = cctx_new_empty ();
1333 prev->flags &= ~CF_NEW; 1393 prev->flags &= ~CF_NEW;
1334 prev->flags |= CF_RUNNING; 1394 prev->flags |= CF_RUNNING;
1335 } 1395 }
1336 1396
1337 prev->flags &= ~CF_RUNNING; 1397 prev->flags &= ~CF_RUNNING;
… …
1348 coro_setup (aTHX_ next); 1408 coro_setup (aTHX_ next);
1349 } 1409 }
1350 else 1410 else
1351 load_perl (aTHX_ next); 1411 load_perl (aTHX_ next);
1352 1412
1353 prev__cctx = prev->cctx;
1354
1355 /* possibly untie and reuse the cctx */ 1413 /* possibly untie and reuse the cctx */
1356 if (expect_true ( 1414 if (expect_true (
1357 prev__cctx->idle_sp == (void *)stacklevel 1415 cctx_current->idle_sp == STACKLEVEL
1358 && !(prev__cctx->flags & CC_TRACE) 1416 && !(cctx_current->flags & CC_TRACE)
1359 && !force_cctx 1417 && !force_cctx
1360 )) 1418 ))
1361 { 1419 {
1362 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1420 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1363 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); 1421 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1364 1422
1365 prev->cctx = 0;
1366
1367 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1423 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1368 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1424 /* without this the next cctx_get might destroy the running cctx while still in use */
1369 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1425 if (expect_false (CCTX_EXPIRED (cctx_current)))
1370 if (!next->cctx) 1426 if (expect_true (!next->cctx))
1371 next->cctx = cctx_get (aTHX); 1427 next->cctx = cctx_get (aTHX);
1372 1428
1373 cctx_put (prev__cctx); 1429 cctx_put (cctx_current);
1374 } 1430 }
1431 else
1432 prev->cctx = cctx_current;
1375 1433
1376 ++next->usecount; 1434 ++next->usecount;
1377 1435
1378 if (expect_true (!next->cctx)) 1436 cctx_prev = cctx_current;
1379 next->cctx = cctx_get (aTHX); 1437 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1380 1438
1381 if (expect_false (prev__cctx != next->cctx)) 1439 next->cctx = 0;
1440
1441 if (expect_false (cctx_prev != cctx_current))
1382 { 1442 {
1383 prev__cctx->top_env = PL_top_env; 1443 cctx_prev->top_env = PL_top_env;
1384 PL_top_env = next->cctx->top_env; 1444 PL_top_env = cctx_current->top_env;
1385 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1445 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1386 } 1446 }
1387 1447
1388 transfer_tail (aTHX); 1448 transfer_tail (aTHX);
1389 } 1449 }
1390} 1450}
… …
1412 --coro_nready; 1472 --coro_nready;
1413 } 1473 }
1414 else 1474 else
1415 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1475 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1416 1476
1417 if (coro->mainstack && coro->mainstack != main_mainstack) 1477 if (coro->mainstack
1478 && coro->mainstack != main_mainstack
1479 && coro->slot
1480 && !PL_dirty)
1418 { 1481 {
1419 struct coro temp; 1482 struct coro temp;
1420 1483
1421 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); 1484 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1422 1485
1423 save_perl (aTHX_ &temp); 1486 save_perl (aTHX_ &temp);
1424 load_perl (aTHX_ coro); 1487 load_perl (aTHX_ coro);
1425 1488
1426 coro_destruct (aTHX_ coro); 1489 coro_destruct_perl (aTHX_ coro);
1427 1490
1428 load_perl (aTHX_ &temp); 1491 load_perl (aTHX_ &temp);
1429 1492
1430 coro->slot = 0; 1493 coro->slot = 0;
1431 } 1494 }
1432 1495
1433 cctx_destroy (coro->cctx); 1496 cctx_destroy (coro->cctx);
1497 SvREFCNT_dec (coro->startcv);
1434 SvREFCNT_dec (coro->args); 1498 SvREFCNT_dec (coro->args);
1499 SvREFCNT_dec (CORO_THROW);
1435 1500
1436 if (coro->next) coro->next->prev = coro->prev; 1501 if (coro->next) coro->next->prev = coro->prev;
1437 if (coro->prev) coro->prev->next = coro->next; 1502 if (coro->prev) coro->prev->next = coro->next;
1438 if (coro == coro_first) coro_first = coro->next; 1503 if (coro == coro_first) coro_first = coro->next;
1439 1504
… …
1493 1558
1494 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1559 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1495 TRANSFER (ta, 1); 1560 TRANSFER (ta, 1);
1496} 1561}
1497 1562
1563/*****************************************************************************/
1564/* gensub: simple closure generation utility */
1565
1566#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1567
1568/* create a closure from XS, returns a code reference */
1569/* the arg can be accessed via GENSUB_ARG from the callback */
1570/* the callback must use dXSARGS/XSRETURN */
1571static SV *
1572gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1573{
1574 CV *cv = (CV *)newSV (0);
1575
1576 sv_upgrade ((SV *)cv, SVt_PVCV);
1577
1578 CvANON_on (cv);
1579 CvISXSUB_on (cv);
1580 CvXSUB (cv) = xsub;
1581 GENSUB_ARG = arg;
1582
1583 return newRV_noinc ((SV *)cv);
1584}
1585
1498/** Coro ********************************************************************/ 1586/** Coro ********************************************************************/
1499 1587
1500INLINE void 1588INLINE void
1501coro_enq (pTHX_ struct coro *coro) 1589coro_enq (pTHX_ struct coro *coro)
1502{ 1590{
… …
1520{ 1608{
1521 struct coro *coro; 1609 struct coro *coro;
1522 SV *sv_hook; 1610 SV *sv_hook;
1523 void (*xs_hook)(void); 1611 void (*xs_hook)(void);
1524 1612
1525 if (SvROK (coro_sv))
1526 coro_sv = SvRV (coro_sv);
1527
1528 coro = SvSTATE (coro_sv); 1613 coro = SvSTATE (coro_sv);
1529 1614
1530 if (coro->flags & CF_READY) 1615 if (coro->flags & CF_READY)
1531 return 0; 1616 return 0;
1532 1617
… …
1563api_is_ready (pTHX_ SV *coro_sv) 1648api_is_ready (pTHX_ SV *coro_sv)
1564{ 1649{
1565 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1650 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1566} 1651}
1567 1652
1653/* expects to own a reference to next->hv */
1568INLINE void 1654INLINE void
1569prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1655prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1570{ 1656{
1571 SV *prev_sv, *next_sv;
1572
1573 for (;;)
1574 {
1575 next_sv = coro_deq (aTHX);
1576
1577 /* nothing to schedule: call the idle handler */
1578 if (expect_false (!next_sv))
1579 {
1580 dSP;
1581
1582 ENTER;
1583 SAVETMPS;
1584
1585 PUSHMARK (SP);
1586 PUTBACK;
1587 call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1588
1589 FREETMPS;
1590 LEAVE;
1591 continue;
1592 }
1593
1594 ta->next = SvSTATE_hv (next_sv);
1595
1596 /* cannot transfer to destroyed coros, skip and look for next */
1597 if (expect_false (ta->next->flags & CF_DESTROYED))
1598 {
1599 SvREFCNT_dec (next_sv);
1600 /* coro_nready has already been taken care of by destroy */
1601 continue;
1602 }
1603
1604 --coro_nready;
1605 break;
1606 }
1607
1608 /* free this only after the transfer */
1609 prev_sv = SvRV (coro_current); 1657 SV *prev_sv = SvRV (coro_current);
1658
1610 ta->prev = SvSTATE_hv (prev_sv); 1659 ta->prev = SvSTATE_hv (prev_sv);
1660 ta->next = next;
1661
1611 TRANSFER_CHECK (*ta); 1662 TRANSFER_CHECK (*ta);
1612 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); 1663
1613 ta->next->flags &= ~CF_READY;
1614 SvRV_set (coro_current, next_sv); 1664 SvRV_set (coro_current, (SV *)next->hv);
1615 1665
1616 free_coro_mortal (aTHX); 1666 free_coro_mortal (aTHX);
1617 coro_mortal = prev_sv; 1667 coro_mortal = prev_sv;
1618} 1668}
1619 1669
1670static void
1671prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1672{
1673 for (;;)
1674 {
1675 SV *next_sv = coro_deq (aTHX);
1676
1677 if (expect_true (next_sv))
1678 {
1679 struct coro *next = SvSTATE_hv (next_sv);
1680
1681 /* cannot transfer to destroyed coros, skip and look for next */
1682 if (expect_false (next->flags & CF_DESTROYED))
1683 SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */
1684 else
1685 {
1686 next->flags &= ~CF_READY;
1687 --coro_nready;
1688
1689 prepare_schedule_to (aTHX_ ta, next);
1690 break;
1691 }
1692 }
1693 else
1694 {
1695 /* nothing to schedule: call the idle handler */
1696 if (SvROK (sv_idle)
1697 && SvOBJECT (SvRV (sv_idle)))
1698 {
1699 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1700 api_ready (aTHX_ SvRV (sv_idle));
1701 --coro_nready;
1702 }
1703 else
1704 {
1705 dSP;
1706
1707 ENTER;
1708 SAVETMPS;
1709
1710 PUSHMARK (SP);
1711 PUTBACK;
1712 call_sv (sv_idle, G_VOID | G_DISCARD);
1713
1714 FREETMPS;
1715 LEAVE;
1716 }
1717 }
1718 }
1719}
1720
1620INLINE void 1721INLINE void
1621prepare_cede (pTHX_ struct coro_transfer_args *ta) 1722prepare_cede (pTHX_ struct coro_transfer_args *ta)
1622{ 1723{
1623 api_ready (aTHX_ coro_current); 1724 api_ready (aTHX_ coro_current);
1624 prepare_schedule (aTHX_ ta); 1725 prepare_schedule (aTHX_ ta);
… …
1643{ 1744{
1644 struct coro_transfer_args ta; 1745 struct coro_transfer_args ta;
1645 1746
1646 prepare_schedule (aTHX_ &ta); 1747 prepare_schedule (aTHX_ &ta);
1647 TRANSFER (ta, 1); 1748 TRANSFER (ta, 1);
1749}
1750
1751static void
1752api_schedule_to (pTHX_ SV *coro_sv)
1753{
1754 struct coro_transfer_args ta;
1755 struct coro *next = SvSTATE (coro_sv);
1756
1757 SvREFCNT_inc_NN (coro_sv);
1758 prepare_schedule_to (aTHX_ &ta, next);
1648} 1759}
1649 1760
1650static int 1761static int
1651api_cede (pTHX) 1762api_cede (pTHX)
1652{ 1763{
… …
1681static void 1792static void
1682api_trace (pTHX_ SV *coro_sv, int flags) 1793api_trace (pTHX_ SV *coro_sv, int flags)
1683{ 1794{
1684 struct coro *coro = SvSTATE (coro_sv); 1795 struct coro *coro = SvSTATE (coro_sv);
1685 1796
1797 if (coro->flags & CF_RUNNING)
1798 croak ("cannot enable tracing on a running coroutine, caught");
1799
1686 if (flags & CC_TRACE) 1800 if (flags & CC_TRACE)
1687 { 1801 {
1688 if (!coro->cctx) 1802 if (!coro->cctx)
1689 coro->cctx = cctx_new_run (); 1803 coro->cctx = cctx_new_run ();
1690 else if (!(coro->cctx->flags & CC_TRACE)) 1804 else if (!(coro->cctx->flags & CC_TRACE))
1691 croak ("cannot enable tracing on coroutine with custom stack,"); 1805 croak ("cannot enable tracing on coroutine with custom stack, caught");
1692 1806
1693 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 1807 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1694 } 1808 }
1695 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 1809 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1696 { 1810 {
… …
1699 if (coro->flags & CF_RUNNING) 1813 if (coro->flags & CF_RUNNING)
1700 PL_runops = RUNOPS_DEFAULT; 1814 PL_runops = RUNOPS_DEFAULT;
1701 else 1815 else
1702 coro->slot->runops = RUNOPS_DEFAULT; 1816 coro->slot->runops = RUNOPS_DEFAULT;
1703 } 1817 }
1818}
1819
1820static void
1821coro_call_on_destroy (pTHX_ struct coro *coro)
1822{
1823 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
1824 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1825
1826 if (on_destroyp)
1827 {
1828 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1829
1830 while (AvFILLp (on_destroy) >= 0)
1831 {
1832 dSP; /* don't disturb outer sp */
1833 SV *cb = av_pop (on_destroy);
1834
1835 PUSHMARK (SP);
1836
1837 if (statusp)
1838 {
1839 int i;
1840 AV *status = (AV *)SvRV (*statusp);
1841 EXTEND (SP, AvFILLp (status) + 1);
1842
1843 for (i = 0; i <= AvFILLp (status); ++i)
1844 PUSHs (AvARRAY (status)[i]);
1845 }
1846
1847 PUTBACK;
1848 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
1849 }
1850 }
1851}
1852
1853static void
1854slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1855{
1856 int i;
1857 HV *hv = (HV *)SvRV (coro_current);
1858 AV *av = newAV ();
1859
1860 av_extend (av, items - 1);
1861 for (i = 0; i < items; ++i)
1862 av_push (av, SvREFCNT_inc_NN (arg [i]));
1863
1864 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
1865
1866 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1867 api_ready (aTHX_ sv_manager);
1868
1869 frame->prepare = prepare_schedule;
1870 frame->check = slf_check_repeat;
1871
1872 /* as a minor optimisation, we could unwind all stacks here */
1873 /* but that puts extra pressure on pp_slf, and is not worth much */
1874 /*coro_unwind_stacks (aTHX);*/
1875}
1876
1877/*****************************************************************************/
1878/* async pool handler */
1879
1880static int
1881slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
1882{
1883 HV *hv = (HV *)SvRV (coro_current);
1884 struct coro *coro = (struct coro *)frame->data;
1885
1886 if (!coro->invoke_cb)
1887 return 1; /* loop till we have invoke */
1888 else
1889 {
1890 hv_store (hv, "desc", sizeof ("desc") - 1,
1891 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1892
1893 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1894
1895 {
1896 dSP;
1897 XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
1898 PUTBACK;
1899 }
1900
1901 SvREFCNT_dec (GvAV (PL_defgv));
1902 GvAV (PL_defgv) = coro->invoke_av;
1903 coro->invoke_av = 0;
1904
1905 return 0;
1906 }
1907}
1908
1909static void
1910slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1911{
1912 HV *hv = (HV *)SvRV (coro_current);
1913 struct coro *coro = SvSTATE_hv ((SV *)hv);
1914
1915 if (expect_true (coro->saved_deffh))
1916 {
1917 /* subsequent iteration */
1918 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1919 coro->saved_deffh = 0;
1920
1921 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1922 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1923 {
1924 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
1925 coro->invoke_av = newAV ();
1926
1927 frame->prepare = prepare_nop;
1928 }
1929 else
1930 {
1931 av_clear (GvAV (PL_defgv));
1932 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
1933
1934 coro->prio = 0;
1935
1936 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1937 api_trace (aTHX_ coro_current, 0);
1938
1939 frame->prepare = prepare_schedule;
1940 av_push (av_async_pool, SvREFCNT_inc (hv));
1941 }
1942 }
1943 else
1944 {
1945 /* first iteration, simply fall through */
1946 frame->prepare = prepare_nop;
1947 }
1948
1949 frame->check = slf_check_pool_handler;
1950 frame->data = (void *)coro;
1951}
1952
1953/*****************************************************************************/
1954/* rouse callback */
1955
1956#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
1957
1958static void
1959coro_rouse_callback (pTHX_ CV *cv)
1960{
1961 dXSARGS;
1962 SV *data = (SV *)GENSUB_ARG;
1963
1964 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1965 {
1966 /* first call, set args */
1967 AV *av = newAV ();
1968 SV *coro = SvRV (data);
1969
1970 SvRV_set (data, (SV *)av);
1971 api_ready (aTHX_ coro);
1972 SvREFCNT_dec (coro);
1973
1974 /* better take a full copy of the arguments */
1975 while (items--)
1976 av_store (av, items, newSVsv (ST (items)));
1977 }
1978
1979 XSRETURN_EMPTY;
1980}
1981
1982static int
1983slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
1984{
1985 SV *data = (SV *)frame->data;
1986
1987 if (CORO_THROW)
1988 return 0;
1989
1990 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1991 return 1;
1992
1993 /* now push all results on the stack */
1994 {
1995 dSP;
1996 AV *av = (AV *)SvRV (data);
1997 int i;
1998
1999 EXTEND (SP, AvFILLp (av) + 1);
2000 for (i = 0; i <= AvFILLp (av); ++i)
2001 PUSHs (sv_2mortal (AvARRAY (av)[i]));
2002
2003 /* we have stolen the elements, so ste length to zero and free */
2004 AvFILLp (av) = -1;
2005 av_undef (av);
2006
2007 PUTBACK;
2008 }
2009
2010 return 0;
2011}
2012
2013static void
2014slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2015{
2016 SV *cb;
2017
2018 if (items)
2019 cb = arg [0];
2020 else
2021 {
2022 struct coro *coro = SvSTATE_current;
2023
2024 if (!coro->rouse_cb)
2025 croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
2026
2027 cb = sv_2mortal (coro->rouse_cb);
2028 coro->rouse_cb = 0;
2029 }
2030
2031 if (!SvROK (cb)
2032 || SvTYPE (SvRV (cb)) != SVt_PVCV
2033 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2034 croak ("Coro::rouse_wait called with illegal callback argument,");
2035
2036 {
2037 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */
2038 SV *data = (SV *)GENSUB_ARG;
2039
2040 frame->data = (void *)data;
2041 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2042 frame->check = slf_check_rouse_wait;
2043 }
2044}
2045
2046static SV *
2047coro_new_rouse_cb (pTHX)
2048{
2049 HV *hv = (HV *)SvRV (coro_current);
2050 struct coro *coro = SvSTATE_hv (hv);
2051 SV *data = newRV_inc ((SV *)hv);
2052 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);
2053
2054 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2055 SvREFCNT_dec (data); /* magicext increases the refcount */
2056
2057 SvREFCNT_dec (coro->rouse_cb);
2058 coro->rouse_cb = SvREFCNT_inc_NN (cb);
2059
2060 return cb;
1704} 2061}
1705 2062
1706/*****************************************************************************/ 2063/*****************************************************************************/
1707/* schedule-like-function opcode (SLF) */ 2064/* schedule-like-function opcode (SLF) */
1708 2065
… …
1755static void 2112static void
1756slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2113slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1757{ 2114{
1758 frame->prepare = prepare_schedule; 2115 frame->prepare = prepare_schedule;
1759 frame->check = slf_check_nop; 2116 frame->check = slf_check_nop;
2117}
2118
2119static void
2120slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
2121{
2122 struct coro *next = (struct coro *)slf_frame.data;
2123
2124 SvREFCNT_inc_NN (next->hv);
2125 prepare_schedule_to (aTHX_ ta, next);
2126}
2127
2128static void
2129slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2130{
2131 if (!items)
2132 croak ("Coro::schedule_to expects a coroutine argument, caught");
2133
2134 frame->data = (void *)SvSTATE (arg [0]);
2135 frame->prepare = slf_prepare_schedule_to;
2136 frame->check = slf_check_nop;
2137}
2138
2139static void
2140slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2141{
2142 api_ready (aTHX_ SvRV (coro_current));
2143
2144 slf_init_schedule_to (aTHX_ frame, cv, arg, items);
1760} 2145}
1761 2146
1762static void 2147static void
1763slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2148slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1764{ 2149{
… …
1835 } 2220 }
1836 while (slf_frame.check (aTHX_ &slf_frame)); 2221 while (slf_frame.check (aTHX_ &slf_frame));
1837 2222
1838 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2223 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1839 2224
2225 /* exception handling */
2226 if (expect_false (CORO_THROW))
2227 {
2228 SV *exception = sv_2mortal (CORO_THROW);
2229
2230 CORO_THROW = 0;
2231 sv_setsv (ERRSV, exception);
2232 croak (0);
2233 }
2234
1840 /* return value handling - mostly like entersub */ 2235 /* return value handling - mostly like entersub */
1841 /* make sure we put something on the stack in scalar context */ 2236 /* make sure we put something on the stack in scalar context */
1842 if (GIMME_V == G_SCALAR) 2237 if (GIMME_V == G_SCALAR)
1843 { 2238 {
1844 dSP; 2239 dSP;
… …
1850 bot [1] = *sp; 2245 bot [1] = *sp;
1851 2246
1852 SP = bot + 1; 2247 SP = bot + 1;
1853 2248
1854 PUTBACK; 2249 PUTBACK;
1855 }
1856
1857 /* exception handling */
1858 if (expect_false (coro_throw))
1859 {
1860 SV *exception = sv_2mortal (coro_throw);
1861
1862 coro_throw = 0;
1863 sv_setsv (ERRSV, exception);
1864 croak (0);
1865 } 2250 }
1866 2251
1867 return NORMAL; 2252 return NORMAL;
1868} 2253}
1869 2254
… …
1910 } 2295 }
1911 else 2296 else
1912 slf_argc = 0; 2297 slf_argc = 0;
1913 2298
1914 PL_op->op_ppaddr = pp_slf; 2299 PL_op->op_ppaddr = pp_slf;
1915 PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ 2300 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
1916 2301
1917 PL_op = (OP *)&slf_restore; 2302 PL_op = (OP *)&slf_restore;
1918} 2303}
1919 2304
1920/*****************************************************************************/ 2305/*****************************************************************************/
… …
1991 PerlIOBuf_get_cnt, 2376 PerlIOBuf_get_cnt,
1992 PerlIOBuf_set_ptrcnt, 2377 PerlIOBuf_set_ptrcnt,
1993}; 2378};
1994 2379
1995/*****************************************************************************/ 2380/*****************************************************************************/
2381/* Coro::Semaphore & Coro::Signal */
2382
2383static SV *
2384coro_waitarray_new (pTHX_ int count)
2385{
2386 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */
2387 AV *av = newAV ();
2388 SV **ary;
2389
2390 /* unfortunately, building manually saves memory */
2391 Newx (ary, 2, SV *);
2392 AvALLOC (av) = ary;
2393#if PERL_VERSION_ATLEAST (5,10,0)
2394 AvARRAY (av) = ary;
2395#else
2396 /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
2397 /* -DDEBUGGING flags this as a bug, despite it perfectly working */
2398 SvPVX ((SV *)av) = (char *)ary;
2399#endif
2400 AvMAX (av) = 1;
2401 AvFILLp (av) = 0;
2402 ary [0] = newSViv (count);
2403
2404 return newRV_noinc ((SV *)av);
2405}
2406
1996/* Coro::Semaphore */ 2407/* semaphore */
1997 2408
1998static void 2409static void
1999coro_semaphore_adjust (pTHX_ AV *av, IV adjust) 2410coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2000{ 2411{
2001 SV *count_sv = AvARRAY (av)[0]; 2412 SV *count_sv = AvARRAY (av)[0];
… …
2013 AvARRAY (av)[0] = AvARRAY (av)[1]; 2424 AvARRAY (av)[0] = AvARRAY (av)[1];
2014 AvARRAY (av)[1] = count_sv; 2425 AvARRAY (av)[1] = count_sv;
2015 cb = av_shift (av); 2426 cb = av_shift (av);
2016 2427
2017 if (SvOBJECT (cb)) 2428 if (SvOBJECT (cb))
2429 {
2018 api_ready (aTHX_ cb); 2430 api_ready (aTHX_ cb);
2019 else 2431 --count;
2020 croak ("callbacks not yet supported"); 2432 }
2433 else if (SvTYPE (cb) == SVt_PVCV)
2434 {
2435 dSP;
2436 PUSHMARK (SP);
2437 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2438 PUTBACK;
2439 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2440 }
2021 2441
2022 SvREFCNT_dec (cb); 2442 SvREFCNT_dec (cb);
2023
2024 --count;
2025 } 2443 }
2026} 2444}
2027 2445
2028static void 2446static void
2029coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2447coro_semaphore_on_destroy (pTHX_ struct coro *coro)
… …
2031 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2449 /* call $sem->adjust (0) to possibly wake up some other waiters */
2032 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2450 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2033} 2451}
2034 2452
2035static int 2453static int
2036slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) 2454slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2037{ 2455{
2038 AV *av = (AV *)frame->data; 2456 AV *av = (AV *)frame->data;
2039 SV *count_sv = AvARRAY (av)[0]; 2457 SV *count_sv = AvARRAY (av)[0];
2040 2458
2459 /* if we are about to throw, don't actually acquire the lock, just throw */
2460 if (CORO_THROW)
2461 return 0;
2041 if (SvIVX (count_sv) > 0) 2462 else if (SvIVX (count_sv) > 0)
2042 { 2463 {
2043 SvSTATE_current->on_destroy = 0; 2464 SvSTATE_current->on_destroy = 0;
2465
2466 if (acquire)
2044 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2467 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2468 else
2469 coro_semaphore_adjust (aTHX_ av, 0);
2470
2045 return 0; 2471 return 0;
2046 } 2472 }
2047 else 2473 else
2048 { 2474 {
2049 int i; 2475 int i;
… …
2058 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2484 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2059 return 1; 2485 return 1;
2060 } 2486 }
2061} 2487}
2062 2488
2063static void 2489static int
2490slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
2491{
2492 return slf_check_semaphore_down_or_wait (aTHX_ frame, 1);
2493}
2494
2495static int
2496slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame)
2497{
2498 return slf_check_semaphore_down_or_wait (aTHX_ frame, 0);
2499}
2500
2501static void
2064slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2502slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2065{ 2503{
2066 AV *av = (AV *)SvRV (arg [0]); 2504 AV *av = (AV *)SvRV (arg [0]);
2067 2505
2068 if (SvIVX (AvARRAY (av)[0]) > 0) 2506 if (SvIVX (AvARRAY (av)[0]) > 0)
2069 { 2507 {
2070 frame->data = (void *)av; 2508 frame->data = (void *)av;
2071 frame->prepare = prepare_nop; 2509 frame->prepare = prepare_nop;
2072 SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2073 } 2510 }
2074 else 2511 else
2075 { 2512 {
2076 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2513 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2077 2514
2078 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 2515 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2079 frame->prepare = prepare_schedule; 2516 frame->prepare = prepare_schedule;
2080 2517
2081 /* to avoid race conditions when a woken-up coro gets terminated */ 2518 /* to avoid race conditions when a woken-up coro gets terminated */
2082 /* we arrange for a temporary on_destroy that calls adjust (0) */ 2519 /* we arrange for a temporary on_destroy that calls adjust (0) */
2083 assert (!SvSTATE_current->on_destroy);//D
2084 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 2520 SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2085 } 2521 }
2522}
2086 2523
2524static void
2525slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2526{
2527 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2087 frame->check = slf_check_semaphore_down; 2528 frame->check = slf_check_semaphore_down;
2088
2089} 2529}
2090 2530
2091/*****************************************************************************/ 2531static void
2092/* gensub: simple closure generation utility */ 2532slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2093
2094#define GENSUB_ARG CvXSUBANY (cv).any_ptr
2095
2096/* create a closure from XS, returns a code reference */
2097/* the arg can be accessed via GENSUB_ARG from the callback */
2098/* the callback must use dXSARGS/XSRETURN */
2099static SV *
2100gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
2101{ 2533{
2102 CV *cv = (CV *)newSV (0); 2534 if (items >= 2)
2535 {
2536 /* callback form */
2537 AV *av = (AV *)SvRV (arg [0]);
2538 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2103 2539
2104 sv_upgrade ((SV *)cv, SVt_PVCV); 2540 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2105 2541
2106 CvANON_on (cv); 2542 if (SvIVX (AvARRAY (av)[0]) > 0)
2107 CvISXSUB_on (cv); 2543 coro_semaphore_adjust (aTHX_ av, 0);
2108 CvXSUB (cv) = xsub;
2109 GENSUB_ARG = arg;
2110 2544
2111 return newRV_noinc ((SV *)cv); 2545 frame->prepare = prepare_nop;
2546 frame->check = slf_check_nop;
2547 }
2548 else
2549 {
2550 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2551 frame->check = slf_check_semaphore_wait;
2552 }
2553}
2554
2555/* signal */
2556
2557static void
2558coro_signal_wake (pTHX_ AV *av, int count)
2559{
2560 SvIVX (AvARRAY (av)[0]) = 0;
2561
2562 /* now signal count waiters */
2563 while (count > 0 && AvFILLp (av) > 0)
2564 {
2565 SV *cb;
2566
2567 /* swap first two elements so we can shift a waiter */
2568 cb = AvARRAY (av)[0];
2569 AvARRAY (av)[0] = AvARRAY (av)[1];
2570 AvARRAY (av)[1] = cb;
2571
2572 cb = av_shift (av);
2573
2574 api_ready (aTHX_ cb);
2575 sv_setiv (cb, 0); /* signal waiter */
2576 SvREFCNT_dec (cb);
2577
2578 --count;
2579 }
2580}
2581
2582static int
2583slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
2584{
2585 /* if we are about to throw, also stop waiting */
2586 return SvROK ((SV *)frame->data) && !CORO_THROW;
2587}
2588
2589static void
2590slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2591{
2592 AV *av = (AV *)SvRV (arg [0]);
2593
2594 if (SvIVX (AvARRAY (av)[0]))
2595 {
2596 SvIVX (AvARRAY (av)[0]) = 0;
2597 frame->prepare = prepare_nop;
2598 frame->check = slf_check_nop;
2599 }
2600 else
2601 {
2602 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */
2603
2604 av_push (av, waiter);
2605
2606 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2607 frame->prepare = prepare_schedule;
2608 frame->check = slf_check_signal_wait;
2609 }
2112} 2610}
2113 2611
2114/*****************************************************************************/ 2612/*****************************************************************************/
2115/* Coro::AIO */ 2613/* Coro::AIO */
2116 2614
… …
2131 dXSARGS; 2629 dXSARGS;
2132 AV *state = (AV *)GENSUB_ARG; 2630 AV *state = (AV *)GENSUB_ARG;
2133 SV *coro = av_pop (state); 2631 SV *coro = av_pop (state);
2134 SV *data_sv = newSV (sizeof (struct io_state)); 2632 SV *data_sv = newSV (sizeof (struct io_state));
2135 2633
2136 av_extend (state, items); 2634 av_extend (state, items - 1);
2137 2635
2138 sv_upgrade (data_sv, SVt_PV); 2636 sv_upgrade (data_sv, SVt_PV);
2139 SvCUR_set (data_sv, sizeof (struct io_state)); 2637 SvCUR_set (data_sv, sizeof (struct io_state));
2140 SvPOK_only (data_sv); 2638 SvPOK_only (data_sv);
2141 2639
… …
2166static int 2664static int
2167slf_check_aio_req (pTHX_ struct CoroSLF *frame) 2665slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2168{ 2666{
2169 AV *state = (AV *)frame->data; 2667 AV *state = (AV *)frame->data;
2170 2668
2669 /* if we are about to throw, return early */
2670 /* this does not cancel the aio request, but at least */
2671 /* it quickly returns */
2672 if (CORO_THROW)
2673 return 0;
2674
2171 /* one element that is an RV? repeat! */ 2675 /* one element that is an RV? repeat! */
2172 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 2676 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))
2173 return 1; 2677 return 1;
2174 2678
2175 /* restore status */ 2679 /* restore status */
… …
2270 XSRETURN_EMPTY; 2774 XSRETURN_EMPTY;
2271} 2775}
2272 2776
2273/*****************************************************************************/ 2777/*****************************************************************************/
2274 2778
2779#if CORO_CLONE
2780# include "clone.c"
2781#endif
2782
2275MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 2783MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2276 2784
2277PROTOTYPES: DISABLE 2785PROTOTYPES: DISABLE
2278 2786
2279BOOT: 2787BOOT:
… …
2283 coro_thx = PERL_GET_CONTEXT; 2791 coro_thx = PERL_GET_CONTEXT;
2284# endif 2792# endif
2285#endif 2793#endif
2286 BOOT_PAGESIZE; 2794 BOOT_PAGESIZE;
2287 2795
2796 cctx_current = cctx_new_empty ();
2797
2288 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 2798 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2289 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 2799 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2290 2800
2291 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 2801 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2292 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; 2802 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
… …
2311 2821
2312 { 2822 {
2313 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); 2823 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2314 2824
2315 if (!PL_custom_op_names) PL_custom_op_names = newHV (); 2825 if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2316 hv_store_ent (PL_custom_op_names, slf, 2826 hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2317 newSVpv ("coro_slf", 0), 0);
2318 2827
2319 if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); 2828 if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2320 hv_store_ent (PL_custom_op_descs, slf, 2829 hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2321 newSVpv ("coro schedule like function", 0), 0);
2322 } 2830 }
2323 2831
2324 coroapi.ver = CORO_API_VERSION; 2832 coroapi.ver = CORO_API_VERSION;
2325 coroapi.rev = CORO_API_REVISION; 2833 coroapi.rev = CORO_API_REVISION;
2326 2834
… …
2345 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 2853 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
2346} 2854}
2347 2855
2348SV * 2856SV *
2349new (char *klass, ...) 2857new (char *klass, ...)
2858 ALIAS:
2859 Coro::new = 1
2350 CODE: 2860 CODE:
2351{ 2861{
2352 struct coro *coro; 2862 struct coro *coro;
2353 MAGIC *mg; 2863 MAGIC *mg;
2354 HV *hv; 2864 HV *hv;
2865 CV *cb;
2355 int i; 2866 int i;
2867
2868 if (items > 1)
2869 {
2870 cb = coro_sv_2cv (aTHX_ ST (1));
2871
2872 if (!ix)
2873 {
2874 if (CvISXSUB (cb))
2875 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2876
2877 if (!CvROOT (cb))
2878 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2879 }
2880 }
2356 2881
2357 Newz (0, coro, 1, struct coro); 2882 Newz (0, coro, 1, struct coro);
2358 coro->args = newAV (); 2883 coro->args = newAV ();
2359 coro->flags = CF_NEW; 2884 coro->flags = CF_NEW;
2360 2885
… …
2365 coro->hv = hv = newHV (); 2890 coro->hv = hv = newHV ();
2366 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); 2891 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2367 mg->mg_flags |= MGf_DUP; 2892 mg->mg_flags |= MGf_DUP;
2368 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 2893 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2369 2894
2895 if (items > 1)
2896 {
2370 av_extend (coro->args, items - 1); 2897 av_extend (coro->args, items - 1 + ix - 1);
2898
2899 if (ix)
2900 {
2901 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2902 cb = cv_coro_run;
2903 }
2904
2905 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2906
2371 for (i = 1; i < items; i++) 2907 for (i = 2; i < items; i++)
2372 av_push (coro->args, newSVsv (ST (i))); 2908 av_push (coro->args, newSVsv (ST (i)));
2909 }
2373} 2910}
2374 OUTPUT: 2911 OUTPUT:
2375 RETVAL 2912 RETVAL
2376 2913
2377void 2914void
… …
2390void 2927void
2391_exit (int code) 2928_exit (int code)
2392 PROTOTYPE: $ 2929 PROTOTYPE: $
2393 CODE: 2930 CODE:
2394 _exit (code); 2931 _exit (code);
2932
2933SV *
2934clone (Coro::State coro)
2935 CODE:
2936{
2937#if CORO_CLONE
2938 struct coro *ncoro = coro_clone (aTHX_ coro);
2939 MAGIC *mg;
2940 /* TODO: too much duplication */
2941 ncoro->hv = newHV ();
2942 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
2943 mg->mg_flags |= MGf_DUP;
2944 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
2945#else
2946 croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
2947#endif
2948}
2949 OUTPUT:
2950 RETVAL
2395 2951
2396int 2952int
2397cctx_stacksize (int new_stacksize = 0) 2953cctx_stacksize (int new_stacksize = 0)
2398 PROTOTYPE: ;$ 2954 PROTOTYPE: ;$
2399 CODE: 2955 CODE:
… …
2506throw (Coro::State self, SV *throw = &PL_sv_undef) 3062throw (Coro::State self, SV *throw = &PL_sv_undef)
2507 PROTOTYPE: $;$ 3063 PROTOTYPE: $;$
2508 CODE: 3064 CODE:
2509{ 3065{
2510 struct coro *current = SvSTATE_current; 3066 struct coro *current = SvSTATE_current;
2511 SV **throwp = self == current ? &coro_throw : &self->throw; 3067 SV **throwp = self == current ? &CORO_THROW : &self->except;
2512 SvREFCNT_dec (*throwp); 3068 SvREFCNT_dec (*throwp);
2513 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3069 *throwp = SvOK (throw) ? newSVsv (throw) : 0;
2514} 3070}
2515 3071
2516void 3072void
… …
2520 3076
2521SV * 3077SV *
2522has_cctx (Coro::State coro) 3078has_cctx (Coro::State coro)
2523 PROTOTYPE: $ 3079 PROTOTYPE: $
2524 CODE: 3080 CODE:
2525 RETVAL = boolSV (!!coro->cctx); 3081 /* maybe manage the running flag differently */
3082 RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2526 OUTPUT: 3083 OUTPUT:
2527 RETVAL 3084 RETVAL
2528 3085
2529int 3086int
2530is_traced (Coro::State coro) 3087is_traced (Coro::State coro)
… …
2550 3107
2551void 3108void
2552force_cctx () 3109force_cctx ()
2553 PROTOTYPE: 3110 PROTOTYPE:
2554 CODE: 3111 CODE:
2555 SvSTATE_current->cctx->idle_sp = 0; 3112 cctx_current->idle_sp = 0;
2556 3113
2557void 3114void
2558swap_defsv (Coro::State self) 3115swap_defsv (Coro::State self)
2559 PROTOTYPE: $ 3116 PROTOTYPE: $
2560 ALIAS: 3117 ALIAS:
… …
2575 3132
2576BOOT: 3133BOOT:
2577{ 3134{
2578 int i; 3135 int i;
2579 3136
2580 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2581 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3137 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2582 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3138 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2583 3139 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3140 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2584 coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); 3141 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2585 SvREADONLY_on (coro_current); 3142 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3143 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3144 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3145 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3146
3147 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3148 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3149 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3150 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2586 3151
2587 coro_stash = gv_stashpv ("Coro", TRUE); 3152 coro_stash = gv_stashpv ("Coro", TRUE);
2588 3153
2589 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3154 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
2590 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3155 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
… …
2598 3163
2599 { 3164 {
2600 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3165 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2601 3166
2602 coroapi.schedule = api_schedule; 3167 coroapi.schedule = api_schedule;
3168 coroapi.schedule_to = api_schedule_to;
2603 coroapi.cede = api_cede; 3169 coroapi.cede = api_cede;
2604 coroapi.cede_notself = api_cede_notself; 3170 coroapi.cede_notself = api_cede_notself;
2605 coroapi.ready = api_ready; 3171 coroapi.ready = api_ready;
2606 coroapi.is_ready = api_is_ready; 3172 coroapi.is_ready = api_is_ready;
2607 coroapi.nready = coro_nready; 3173 coroapi.nready = coro_nready;
2608 coroapi.current = coro_current; 3174 coroapi.current = coro_current;
2609 3175
2610 GCoroAPI = &coroapi; 3176 /*GCoroAPI = &coroapi;*/
2611 sv_setiv (sv, (IV)&coroapi); 3177 sv_setiv (sv, (IV)&coroapi);
2612 SvREADONLY_on (sv); 3178 SvREADONLY_on (sv);
2613 } 3179 }
2614} 3180}
3181
3182void
3183terminate (...)
3184 CODE:
3185 CORO_EXECUTE_SLF_XS (slf_init_terminate);
2615 3186
2616void 3187void
2617schedule (...) 3188schedule (...)
2618 CODE: 3189 CODE:
2619 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3190 CORO_EXECUTE_SLF_XS (slf_init_schedule);
2620 3191
2621void 3192void
3193schedule_to (...)
3194 CODE:
3195 CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
3196
3197void
3198cede_to (...)
3199 CODE:
3200 CORO_EXECUTE_SLF_XS (slf_init_cede_to);
3201
3202void
2622cede (...) 3203cede (...)
2623 CODE: 3204 CODE:
2624 CORO_EXECUTE_SLF_XS (slf_init_cede); 3205 CORO_EXECUTE_SLF_XS (slf_init_cede);
2625 3206
2626void 3207void
2627cede_notself (...) 3208cede_notself (...)
2628 CODE: 3209 CODE:
2629 CORO_EXECUTE_SLF_XS (slf_init_cede_notself); 3210 CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3211
3212void
3213_cancel (Coro::State self)
3214 CODE:
3215 coro_state_destroy (aTHX_ self);
3216 coro_call_on_destroy (aTHX_ self);
2630 3217
2631void 3218void
2632_set_current (SV *current) 3219_set_current (SV *current)
2633 PROTOTYPE: $ 3220 PROTOTYPE: $
2634 CODE: 3221 CODE:
… …
2679 CODE: 3266 CODE:
2680 RETVAL = coro_nready; 3267 RETVAL = coro_nready;
2681 OUTPUT: 3268 OUTPUT:
2682 RETVAL 3269 RETVAL
2683 3270
2684# for async_pool speedup
2685void 3271void
2686_pool_1 (SV *cb) 3272_pool_handler (...)
2687 CODE: 3273 CODE:
2688{ 3274 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
2689 HV *hv = (HV *)SvRV (coro_current);
2690 struct coro *coro = SvSTATE_hv ((SV *)hv);
2691 AV *defav = GvAV (PL_defgv);
2692 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2693 AV *invoke_av;
2694 int i, len;
2695 3275
2696 if (!invoke) 3276void
3277async_pool (SV *cv, ...)
3278 PROTOTYPE: &@
3279 PPCODE:
3280{
3281 HV *hv = (HV *)av_pop (av_async_pool);
3282 AV *av = newAV ();
3283 SV *cb = ST (0);
3284 int i;
3285
3286 av_extend (av, items - 2);
3287 for (i = 1; i < items; ++i)
3288 av_push (av, SvREFCNT_inc_NN (ST (i)));
3289
3290 if ((SV *)hv == &PL_sv_undef)
2697 { 3291 {
2698 SV *old = PL_diehook; 3292 PUSHMARK (SP);
2699 PL_diehook = 0; 3293 EXTEND (SP, 2);
2700 SvREFCNT_dec (old); 3294 PUSHs (sv_Coro);
2701 croak ("\3async_pool terminate\2\n"); 3295 PUSHs ((SV *)cv_pool_handler);
3296 PUTBACK;
3297 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3298 SPAGAIN;
3299
3300 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
2702 } 3301 }
2703 3302
2704 SvREFCNT_dec (coro->saved_deffh);
2705 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2706
2707 hv_store (hv, "desc", sizeof ("desc") - 1,
2708 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2709
2710 invoke_av = (AV *)SvRV (invoke);
2711 len = av_len (invoke_av);
2712
2713 sv_setsv (cb, AvARRAY (invoke_av)[0]);
2714
2715 if (len > 0)
2716 { 3303 {
2717 av_fill (defav, len - 1); 3304 struct coro *coro = SvSTATE_hv (hv);
2718 for (i = 0; i < len; ++i) 3305
2719 av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); 3306 assert (!coro->invoke_cb);
3307 assert (!coro->invoke_av);
3308 coro->invoke_cb = SvREFCNT_inc (cb);
3309 coro->invoke_av = av;
2720 } 3310 }
3311
3312 api_ready (aTHX_ (SV *)hv);
3313
3314 if (GIMME_V != G_VOID)
3315 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3316 else
3317 SvREFCNT_dec (hv);
2721} 3318}
3319
3320SV *
3321rouse_cb ()
3322 PROTOTYPE:
3323 CODE:
3324 RETVAL = coro_new_rouse_cb (aTHX);
3325 OUTPUT:
3326 RETVAL
2722 3327
2723void 3328void
2724_pool_2 (SV *cb) 3329rouse_wait (...)
3330 PROTOTYPE: ;$
2725 CODE: 3331 PPCODE:
2726{ 3332 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
2727 HV *hv = (HV *)SvRV (coro_current);
2728 struct coro *coro = SvSTATE_hv ((SV *)hv);
2729
2730 sv_setsv (cb, &PL_sv_undef);
2731
2732 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2733 coro->saved_deffh = 0;
2734
2735 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2736 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2737 {
2738 SV *old = PL_diehook;
2739 PL_diehook = 0;
2740 SvREFCNT_dec (old);
2741 croak ("\3async_pool terminate\2\n");
2742 }
2743
2744 av_clear (GvAV (PL_defgv));
2745 hv_store (hv, "desc", sizeof ("desc") - 1,
2746 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
2747
2748 coro->prio = 0;
2749
2750 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
2751 api_trace (aTHX_ coro_current, 0);
2752
2753 av_push (av_async_pool, newSVsv (coro_current));
2754}
2755 3333
2756 3334
2757MODULE = Coro::State PACKAGE = PerlIO::cede 3335MODULE = Coro::State PACKAGE = PerlIO::cede
2758 3336
2759BOOT: 3337BOOT:
… …
2761 3339
2762 3340
2763MODULE = Coro::State PACKAGE = Coro::Semaphore 3341MODULE = Coro::State PACKAGE = Coro::Semaphore
2764 3342
2765SV * 3343SV *
2766new (SV *klass, SV *count_ = 0) 3344new (SV *klass, SV *count = 0)
2767 CODE: 3345 CODE:
2768{ 3346 RETVAL = sv_bless (
2769 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 3347 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),
2770 AV *av = newAV (); 3348 GvSTASH (CvGV (cv))
2771 SV **ary; 3349 );
3350 OUTPUT:
3351 RETVAL
2772 3352
2773 /* unfortunately, building manually saves memory */ 3353# helper for Coro::Channel
2774 Newx (ary, 2, SV *); 3354SV *
2775 AvALLOC (av) = ary; 3355_alloc (int count)
2776 AvARRAY (av) = ary; 3356 CODE:
2777 AvMAX (av) = 1; 3357 RETVAL = coro_waitarray_new (aTHX_ count);
2778 AvFILLp (av) = 0;
2779 ary [0] = newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1);
2780
2781 RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv)));
2782}
2783 OUTPUT: 3358 OUTPUT:
2784 RETVAL 3359 RETVAL
2785 3360
2786SV * 3361SV *
2787count (SV *self) 3362count (SV *self)
… …
2796 adjust = 1 3371 adjust = 1
2797 CODE: 3372 CODE:
2798 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); 3373 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2799 3374
2800void 3375void
2801down (SV *self) 3376down (...)
2802 CODE: 3377 CODE:
2803 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); 3378 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
3379
3380void
3381wait (...)
3382 CODE:
3383 CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
2804 3384
2805void 3385void
2806try (SV *self) 3386try (SV *self)
2807 PPCODE: 3387 PPCODE:
2808{ 3388{
… …
2820 XSRETURN_NO; 3400 XSRETURN_NO;
2821} 3401}
2822 3402
2823void 3403void
2824waiters (SV *self) 3404waiters (SV *self)
2825 CODE: 3405 PPCODE:
2826{ 3406{
2827 AV *av = (AV *)SvRV (self); 3407 AV *av = (AV *)SvRV (self);
3408 int wcount = AvFILLp (av) + 1 - 1;
2828 3409
2829 if (GIMME_V == G_SCALAR) 3410 if (GIMME_V == G_SCALAR)
2830 XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); 3411 XPUSHs (sv_2mortal (newSViv (wcount)));
2831 else 3412 else
2832 { 3413 {
2833 int i; 3414 int i;
2834 EXTEND (SP, AvFILLp (av) + 1 - 1); 3415 EXTEND (SP, wcount);
2835 for (i = 1; i <= AvFILLp (av); ++i) 3416 for (i = 1; i <= wcount; ++i)
2836 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 3417 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
2837 } 3418 }
2838} 3419}
3420
3421MODULE = Coro::State PACKAGE = Coro::Signal
3422
3423SV *
3424new (SV *klass)
3425 CODE:
3426 RETVAL = sv_bless (
3427 coro_waitarray_new (aTHX_ 0),
3428 GvSTASH (CvGV (cv))
3429 );
3430 OUTPUT:
3431 RETVAL
3432
3433void
3434wait (...)
3435 CODE:
3436 CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
3437
3438void
3439broadcast (SV *self)
3440 CODE:
3441{
3442 AV *av = (AV *)SvRV (self);
3443 coro_signal_wake (aTHX_ av, AvFILLp (av));
3444}
3445
3446void
3447send (SV *self)
3448 CODE:
3449{
3450 AV *av = (AV *)SvRV (self);
3451
3452 if (AvFILLp (av))
3453 coro_signal_wake (aTHX_ av, 1);
3454 else
3455 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3456}
3457
3458IV
3459awaited (SV *self)
3460 CODE:
3461 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3462 OUTPUT:
3463 RETVAL
2839 3464
2840 3465
2841MODULE = Coro::State PACKAGE = Coro::AnyEvent 3466MODULE = Coro::State PACKAGE = Coro::AnyEvent
2842 3467
2843BOOT: 3468BOOT:
… …
2871 3496
2872void 3497void
2873_register (char *target, char *proto, SV *req) 3498_register (char *target, char *proto, SV *req)
2874 CODE: 3499 CODE:
2875{ 3500{
2876 HV *st; 3501 CV *req_cv = coro_sv_2cv (aTHX_ req);
2877 GV *gvp;
2878 CV *req_cv = sv_2cv (req, &st, &gvp, 0);
2879 /* newXSproto doesn't return the CV on 5.8 */ 3502 /* newXSproto doesn't return the CV on 5.8 */
2880 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 3503 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
2881 sv_setpv ((SV *)slf_cv, proto); 3504 sv_setpv ((SV *)slf_cv, proto);
2882 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 3505 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
2883} 3506}

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines