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 1.296 by root, Tue Nov 18 10:39:52 2008 UTC vs.
Revision 1.358 by root, Mon Jun 29 04:30:25 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
138#else 144#else
139# define attribute(x) 145# define attribute(x)
140# define expect(expr,value) (expr) 146# define expect(expr,value) (expr)
141# define INLINE static 147# define INLINE static
… …
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;
161# endif
162#endif
163
164#ifdef __linux
165# include <time.h> /* for timespec */
166# include <syscall.h> /* for SYS_* */
167# ifdef SYS_clock_gettime
168# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
169# define CORO_CLOCK_MONOTONIC 1
170# define CORO_CLOCK_THREAD_CPUTIME_ID 3
154# endif 171# endif
155#endif 172#endif
156 173
157static double (*nvtime)(); /* so why doesn't it take void? */ 174static double (*nvtime)(); /* so why doesn't it take void? */
158 175
… …
166static AV *main_mainstack; /* used to differentiate between $main and others */ 183static AV *main_mainstack; /* used to differentiate between $main and others */
167static JMPENV *main_top_env; 184static JMPENV *main_top_env;
168static HV *coro_state_stash, *coro_stash; 185static HV *coro_state_stash, *coro_stash;
169static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 186static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
170 187
188static AV *av_destroy; /* destruction queue */
189static SV *sv_manager; /* the manager coro */
190static SV *sv_idle; /* $Coro::idle */
191
171static GV *irsgv; /* $/ */ 192static GV *irsgv; /* $/ */
172static GV *stdoutgv; /* *STDOUT */ 193static GV *stdoutgv; /* *STDOUT */
173static SV *rv_diehook; 194static SV *rv_diehook;
174static SV *rv_warnhook; 195static SV *rv_warnhook;
175static HV *hv_sig; /* %SIG */ 196static HV *hv_sig; /* %SIG */
176 197
177/* async_pool helper stuff */ 198/* async_pool helper stuff */
178static SV *sv_pool_rss; 199static SV *sv_pool_rss;
179static SV *sv_pool_size; 200static SV *sv_pool_size;
201static SV *sv_async_pool_idle; /* description string */
180static AV *av_async_pool; 202static AV *av_async_pool; /* idle pool */
203static SV *sv_Coro; /* class string */
204static CV *cv_pool_handler;
205static CV *cv_coro_state_new;
181 206
182/* Coro::AnyEvent */ 207/* Coro::AnyEvent */
183static SV *sv_activity; 208static SV *sv_activity;
184 209
185static struct coro_cctx *cctx_first; 210static struct coro_cctx *cctx_first;
… …
214 int valgrind_id; 239 int valgrind_id;
215#endif 240#endif
216 unsigned char flags; 241 unsigned char flags;
217} coro_cctx; 242} coro_cctx;
218 243
244coro_cctx *cctx_current; /* the currently running cctx */
245
246/*****************************************************************************/
247
219enum { 248enum {
220 CF_RUNNING = 0x0001, /* coroutine is running */ 249 CF_RUNNING = 0x0001, /* coroutine is running */
221 CF_READY = 0x0002, /* coroutine is ready */ 250 CF_READY = 0x0002, /* coroutine is ready */
222 CF_NEW = 0x0004, /* has never been switched to */ 251 CF_NEW = 0x0004, /* has never been switched to */
223 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 252 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
253 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
224}; 254};
225 255
226/* the structure where most of the perl state is stored, overlaid on the cxstack */ 256/* the structure where most of the perl state is stored, overlaid on the cxstack */
227typedef struct 257typedef struct
228{ 258{
229 SV *defsv; 259 SV *defsv;
230 AV *defav; 260 AV *defav;
231 SV *errsv; 261 SV *errsv;
232 SV *irsgv; 262 SV *irsgv;
263 HV *hinthv;
233#define VAR(name,type) type name; 264#define VAR(name,type) type name;
234# include "state.h" 265# include "state.h"
235#undef VAR 266#undef VAR
236} perl_slots; 267} perl_slots;
237 268
… …
240/* this is a structure representing a perl-level coroutine */ 271/* this is a structure representing a perl-level coroutine */
241struct coro { 272struct coro {
242 /* the C coroutine allocated to this perl coroutine, if any */ 273 /* the C coroutine allocated to this perl coroutine, if any */
243 coro_cctx *cctx; 274 coro_cctx *cctx;
244 275
276 /* ready queue */
277 struct coro *next_ready;
278
245 /* state data */ 279 /* state data */
246 struct CoroSLF slf_frame; /* saved slf frame */ 280 struct CoroSLF slf_frame; /* saved slf frame */
247 AV *mainstack; 281 AV *mainstack;
248 perl_slots *slot; /* basically the saved sp */ 282 perl_slots *slot; /* basically the saved sp */
249 283
284 CV *startcv; /* the CV to execute */
250 AV *args; /* data associated with this coroutine (initial args) */ 285 AV *args; /* data associated with this coroutine (initial args) */
251 int refcnt; /* coroutines are refcounted, yes */ 286 int refcnt; /* coroutines are refcounted, yes */
252 int flags; /* CF_ flags */ 287 int flags; /* CF_ flags */
253 HV *hv; /* the perl hash associated with this coro, if any */ 288 HV *hv; /* the perl hash associated with this coro, if any */
254 void (*on_destroy)(pTHX_ struct coro *coro); 289 void (*on_destroy)(pTHX_ struct coro *coro);
255 290
256 /* statistics */ 291 /* statistics */
257 int usecount; /* number of transfers to this coro */ 292 int usecount; /* number of transfers to this coro */
258 293
259 /* coro process data */ 294 /* coro process data */
260 int prio; 295 int prio;
261 SV *throw; /* exception to be thrown */ 296 SV *except; /* exception to be thrown */
297 SV *rouse_cb;
262 298
263 /* async_pool */ 299 /* async_pool */
264 SV *saved_deffh; 300 SV *saved_deffh;
301 SV *invoke_cb;
302 AV *invoke_av;
303
304 /* on_enter/on_leave */
305 AV *on_enter;
306 AV *on_leave;
265 307
266 /* linked list */ 308 /* linked list */
267 struct coro *next, *prev; 309 struct coro *next, *prev;
268}; 310};
269 311
… …
272 314
273/* the following variables are effectively part of the perl context */ 315/* the following variables are effectively part of the perl context */
274/* and get copied between struct coro and these variables */ 316/* and get copied between struct coro and these variables */
275/* the mainr easonw e don't support windows process emulation */ 317/* the mainr easonw e don't support windows process emulation */
276static struct CoroSLF slf_frame; /* the current slf frame */ 318static struct CoroSLF slf_frame; /* the current slf frame */
277static SV *coro_throw;
278 319
279/** Coro ********************************************************************/ 320/** Coro ********************************************************************/
280 321
281#define PRIO_MAX 3 322#define CORO_PRIO_MAX 3
282#define PRIO_HIGH 1 323#define CORO_PRIO_HIGH 1
283#define PRIO_NORMAL 0 324#define CORO_PRIO_NORMAL 0
284#define PRIO_LOW -1 325#define CORO_PRIO_LOW -1
285#define PRIO_IDLE -3 326#define CORO_PRIO_IDLE -3
286#define PRIO_MIN -4 327#define CORO_PRIO_MIN -4
287 328
288/* for Coro.pm */ 329/* for Coro.pm */
289static SV *coro_current; 330static SV *coro_current;
290static SV *coro_readyhook; 331static SV *coro_readyhook;
291static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 332static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
333static CV *cv_coro_run, *cv_coro_terminate;
292static struct coro *coro_first; 334static struct coro *coro_first;
293#define coro_nready coroapi.nready 335#define coro_nready coroapi.nready
294 336
295/** lowlevel stuff **********************************************************/ 337/** lowlevel stuff **********************************************************/
296 338
… …
322 get_hv (name, create); 364 get_hv (name, create);
323#endif 365#endif
324 return get_hv (name, create); 366 return get_hv (name, create);
325} 367}
326 368
369/* may croak */
370INLINE CV *
371coro_sv_2cv (pTHX_ SV *sv)
372{
373 HV *st;
374 GV *gvp;
375 CV *cv = sv_2cv (sv, &st, &gvp, 0);
376
377 if (!cv)
378 croak ("code reference expected");
379
380 return cv;
381}
382
383/*****************************************************************************/
384/* magic glue */
385
386#define CORO_MAGIC_type_cv 26
387#define CORO_MAGIC_type_state PERL_MAGIC_ext
388
389#define CORO_MAGIC_NN(sv, type) \
390 (expect_true (SvMAGIC (sv)->mg_type == type) \
391 ? SvMAGIC (sv) \
392 : mg_find (sv, type))
393
394#define CORO_MAGIC(sv, type) \
395 (expect_true (SvMAGIC (sv)) \
396 ? CORO_MAGIC_NN (sv, type) \
397 : 0)
398
399#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
400#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
401
402INLINE struct coro *
403SvSTATE_ (pTHX_ SV *coro)
404{
405 HV *stash;
406 MAGIC *mg;
407
408 if (SvROK (coro))
409 coro = SvRV (coro);
410
411 if (expect_false (SvTYPE (coro) != SVt_PVHV))
412 croak ("Coro::State object required");
413
414 stash = SvSTASH (coro);
415 if (expect_false (stash != coro_stash && stash != coro_state_stash))
416 {
417 /* very slow, but rare, check */
418 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
419 croak ("Coro::State object required");
420 }
421
422 mg = CORO_MAGIC_state (coro);
423 return (struct coro *)mg->mg_ptr;
424}
425
426#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
427
428/* faster than SvSTATE, but expects a coroutine hv */
429#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
430#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
431
432/*****************************************************************************/
433/* padlist management and caching */
434
327static AV * 435static AV *
328coro_clone_padlist (pTHX_ CV *cv) 436coro_derive_padlist (pTHX_ CV *cv)
329{ 437{
330 AV *padlist = CvPADLIST (cv); 438 AV *padlist = CvPADLIST (cv);
331 AV *newpadlist, *newpad; 439 AV *newpadlist, *newpad;
332 440
333 newpadlist = newAV (); 441 newpadlist = newAV ();
… …
338 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 446 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
339#endif 447#endif
340 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 448 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
341 --AvFILLp (padlist); 449 --AvFILLp (padlist);
342 450
343 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); 451 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
344 av_store (newpadlist, 1, (SV *)newpad); 452 av_store (newpadlist, 1, (SV *)newpad);
345 453
346 return newpadlist; 454 return newpadlist;
347} 455}
348 456
349static void 457static void
350free_padlist (pTHX_ AV *padlist) 458free_padlist (pTHX_ AV *padlist)
351{ 459{
352 /* may be during global destruction */ 460 /* may be during global destruction */
353 if (SvREFCNT (padlist)) 461 if (!IN_DESTRUCT)
354 { 462 {
355 I32 i = AvFILLp (padlist); 463 I32 i = AvFILLp (padlist);
356 while (i >= 0) 464
465 while (i > 0) /* special-case index 0 */
357 { 466 {
358 SV **svp = av_fetch (padlist, i--, FALSE); 467 /* we try to be extra-careful here */
359 if (svp) 468 AV *av = (AV *)AvARRAY (padlist)[i--];
360 { 469 I32 j = AvFILLp (av);
361 SV *sv; 470
362 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) 471 while (j >= 0)
472 SvREFCNT_dec (AvARRAY (av)[j--]);
473
474 AvFILLp (av) = -1;
363 SvREFCNT_dec (sv); 475 SvREFCNT_dec (av);
364
365 SvREFCNT_dec (*svp);
366 }
367 } 476 }
368 477
478 SvREFCNT_dec (AvARRAY (padlist)[0]);
479
480 AvFILLp (padlist) = -1;
369 SvREFCNT_dec ((SV*)padlist); 481 SvREFCNT_dec ((SV*)padlist);
370 } 482 }
371} 483}
372 484
373static int 485static int
374coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 486coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
375{ 487{
376 AV *padlist; 488 AV *padlist;
377 AV *av = (AV *)mg->mg_obj; 489 AV *av = (AV *)mg->mg_obj;
490
491 /* perl manages to free our internal AV and _then_ call us */
492 if (IN_DESTRUCT)
493 return;
378 494
379 /* casting is fun. */ 495 /* casting is fun. */
380 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 496 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
381 free_padlist (aTHX_ padlist); 497 free_padlist (aTHX_ padlist);
382 498
383 SvREFCNT_dec (av); /* sv_magicext increased the refcount */ 499 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
384 500
385 return 0; 501 return 0;
386} 502}
387
388#define CORO_MAGIC_type_cv 26
389#define CORO_MAGIC_type_state PERL_MAGIC_ext
390 503
391static MGVTBL coro_cv_vtbl = { 504static MGVTBL coro_cv_vtbl = {
392 0, 0, 0, 0, 505 0, 0, 0, 0,
393 coro_cv_free 506 coro_cv_free
394}; 507};
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))
438 508
439/* the next two functions merely cache the padlists */ 509/* the next two functions merely cache the padlists */
440static void 510static void
441get_padlist (pTHX_ CV *cv) 511get_padlist (pTHX_ CV *cv)
442{ 512{
… …
448 else 518 else
449 { 519 {
450#if CORO_PREFER_PERL_FUNCTIONS 520#if CORO_PREFER_PERL_FUNCTIONS
451 /* this is probably cleaner? but also slower! */ 521 /* this is probably cleaner? but also slower! */
452 /* in practise, it seems to be less stable */ 522 /* in practise, it seems to be less stable */
453 CV *cp = Perl_cv_clone (cv); 523 CV *cp = Perl_cv_clone (aTHX_ cv);
454 CvPADLIST (cv) = CvPADLIST (cp); 524 CvPADLIST (cv) = CvPADLIST (cp);
455 CvPADLIST (cp) = 0; 525 CvPADLIST (cp) = 0;
456 SvREFCNT_dec (cp); 526 SvREFCNT_dec (cp);
457#else 527#else
458 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 528 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
459#endif 529#endif
460 } 530 }
461} 531}
462 532
463static void 533static void
… …
470 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 540 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
471 541
472 av = (AV *)mg->mg_obj; 542 av = (AV *)mg->mg_obj;
473 543
474 if (expect_false (AvFILLp (av) >= AvMAX (av))) 544 if (expect_false (AvFILLp (av) >= AvMAX (av)))
475 av_extend (av, AvMAX (av) + 1); 545 av_extend (av, AvFILLp (av) + 1);
476 546
477 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 547 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
478} 548}
479 549
480/** load & save, init *******************************************************/ 550/** load & save, init *******************************************************/
551
552static void
553on_enterleave_call (pTHX_ SV *cb);
481 554
482static void 555static void
483load_perl (pTHX_ Coro__State c) 556load_perl (pTHX_ Coro__State c)
484{ 557{
485 perl_slots *slot = c->slot; 558 perl_slots *slot = c->slot;
486 c->slot = 0; 559 c->slot = 0;
487 560
488 PL_mainstack = c->mainstack; 561 PL_mainstack = c->mainstack;
489 562
490 GvSV (PL_defgv) = slot->defsv; 563 GvSV (PL_defgv) = slot->defsv;
491 GvAV (PL_defgv) = slot->defav; 564 GvAV (PL_defgv) = slot->defav;
492 GvSV (PL_errgv) = slot->errsv; 565 GvSV (PL_errgv) = slot->errsv;
493 GvSV (irsgv) = slot->irsgv; 566 GvSV (irsgv) = slot->irsgv;
567 GvHV (PL_hintgv) = slot->hinthv;
494 568
495 #define VAR(name,type) PL_ ## name = slot->name; 569 #define VAR(name,type) PL_ ## name = slot->name;
496 # include "state.h" 570 # include "state.h"
497 #undef VAR 571 #undef VAR
498 572
… …
511 585
512 PUTBACK; 586 PUTBACK;
513 } 587 }
514 588
515 slf_frame = c->slf_frame; 589 slf_frame = c->slf_frame;
516 coro_throw = c->throw; 590 CORO_THROW = c->except;
591
592 if (expect_false (c->on_enter))
593 {
594 int i;
595
596 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
597 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
598 }
517} 599}
518 600
519static void 601static void
520save_perl (pTHX_ Coro__State c) 602save_perl (pTHX_ Coro__State c)
521{ 603{
522 c->throw = coro_throw; 604 if (expect_false (c->on_leave))
605 {
606 int i;
607
608 for (i = AvFILLp (c->on_leave); i >= 0; --i)
609 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
610 }
611
612 c->except = CORO_THROW;
523 c->slf_frame = slf_frame; 613 c->slf_frame = slf_frame;
524 614
525 { 615 {
526 dSP; 616 dSP;
527 I32 cxix = cxstack_ix; 617 I32 cxix = cxstack_ix;
… …
539 { 629 {
540 while (expect_true (cxix >= 0)) 630 while (expect_true (cxix >= 0))
541 { 631 {
542 PERL_CONTEXT *cx = &ccstk[cxix--]; 632 PERL_CONTEXT *cx = &ccstk[cxix--];
543 633
544 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 634 if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
545 { 635 {
546 CV *cv = cx->blk_sub.cv; 636 CV *cv = cx->blk_sub.cv;
547 637
548 if (expect_true (CvDEPTH (cv))) 638 if (expect_true (CvDEPTH (cv)))
549 { 639 {
… …
584 c->mainstack = PL_mainstack; 674 c->mainstack = PL_mainstack;
585 675
586 { 676 {
587 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 677 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
588 678
589 slot->defav = GvAV (PL_defgv); 679 slot->defav = GvAV (PL_defgv);
590 slot->defsv = DEFSV; 680 slot->defsv = DEFSV;
591 slot->errsv = ERRSV; 681 slot->errsv = ERRSV;
592 slot->irsgv = GvSV (irsgv); 682 slot->irsgv = GvSV (irsgv);
683 slot->hinthv = GvHV (PL_hintgv);
593 684
594 #define VAR(name,type) slot->name = PL_ ## name; 685 #define VAR(name,type) slot->name = PL_ ## name;
595 # include "state.h" 686 # include "state.h"
596 #undef VAR 687 #undef VAR
597 } 688 }
… …
602 * of perl.c:init_stacks, except that it uses less memory 693 * of perl.c:init_stacks, except that it uses less memory
603 * on the (sometimes correct) assumption that coroutines do 694 * on the (sometimes correct) assumption that coroutines do
604 * not usually need a lot of stackspace. 695 * not usually need a lot of stackspace.
605 */ 696 */
606#if CORO_PREFER_PERL_FUNCTIONS 697#if CORO_PREFER_PERL_FUNCTIONS
607# define coro_init_stacks init_stacks 698# define coro_init_stacks(thx) init_stacks ()
608#else 699#else
609static void 700static void
610coro_init_stacks (pTHX) 701coro_init_stacks (pTHX)
611{ 702{
612 PL_curstackinfo = new_stackinfo(32, 8); 703 PL_curstackinfo = new_stackinfo(32, 8);
… …
675#if !PERL_VERSION_ATLEAST (5,10,0) 766#if !PERL_VERSION_ATLEAST (5,10,0)
676 Safefree (PL_retstack); 767 Safefree (PL_retstack);
677#endif 768#endif
678} 769}
679 770
771#define CORO_RSS \
772 rss += sizeof (SYM (curstackinfo)); \
773 rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
774 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
775 rss += SYM (tmps_max) * sizeof (SV *); \
776 rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
777 rss += SYM (scopestack_max) * sizeof (I32); \
778 rss += SYM (savestack_max) * sizeof (ANY);
779
680static size_t 780static size_t
681coro_rss (pTHX_ struct coro *coro) 781coro_rss (pTHX_ struct coro *coro)
682{ 782{
683 size_t rss = sizeof (*coro); 783 size_t rss = sizeof (*coro);
684 784
685 if (coro->mainstack) 785 if (coro->mainstack)
686 { 786 {
687 perl_slots tmp_slot;
688 perl_slots *slot;
689
690 if (coro->flags & CF_RUNNING) 787 if (coro->flags & CF_RUNNING)
691 { 788 {
692 slot = &tmp_slot; 789 #define SYM(sym) PL_ ## sym
693 790 CORO_RSS;
694 #define VAR(name,type) slot->name = PL_ ## name;
695 # include "state.h"
696 #undef VAR 791 #undef SYM
697 } 792 }
698 else 793 else
699 slot = coro->slot;
700
701 if (slot)
702 { 794 {
703 rss += sizeof (slot->curstackinfo); 795 #define SYM(sym) coro->slot->sym
704 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); 796 CORO_RSS;
705 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); 797 #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 } 798 }
715 } 799 }
716 800
717 return rss; 801 return rss;
718} 802}
… …
731#endif 815#endif
732 816
733/* 817/*
734 * This overrides the default magic get method of %SIG elements. 818 * 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 819 * 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 820 * and instead of trying to save and restore the hash elements, we just provide
737 * readback here. 821 * 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 */ 822 */
742static int 823static int
743coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 824coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
744{ 825{
745 const char *s = MgPV_nolen_const (mg); 826 const char *s = MgPV_nolen_const (mg);
… …
798 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 879 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
799 880
800 if (svp) 881 if (svp)
801 { 882 {
802 SV *old = *svp; 883 SV *old = *svp;
803 *svp = newSVsv (sv); 884 *svp = SvOK (sv) ? newSVsv (sv) : 0;
804 SvREFCNT_dec (old); 885 SvREFCNT_dec (old);
805 return 0; 886 return 0;
806 } 887 }
807 } 888 }
808 889
… …
818 899
819static int 900static int
820slf_check_nop (pTHX_ struct CoroSLF *frame) 901slf_check_nop (pTHX_ struct CoroSLF *frame)
821{ 902{
822 return 0; 903 return 0;
904}
905
906static int
907slf_check_repeat (pTHX_ struct CoroSLF *frame)
908{
909 return 1;
823} 910}
824 911
825static UNOP coro_setup_op; 912static UNOP coro_setup_op;
826 913
827static void NOINLINE /* noinline to keep it out of the transfer fast path */ 914static void NOINLINE /* noinline to keep it out of the transfer fast path */
… …
834 921
835 PL_runops = RUNOPS_DEFAULT; 922 PL_runops = RUNOPS_DEFAULT;
836 PL_curcop = &PL_compiling; 923 PL_curcop = &PL_compiling;
837 PL_in_eval = EVAL_NULL; 924 PL_in_eval = EVAL_NULL;
838 PL_comppad = 0; 925 PL_comppad = 0;
926 PL_comppad_name = 0;
927 PL_comppad_name_fill = 0;
928 PL_comppad_name_floor = 0;
839 PL_curpm = 0; 929 PL_curpm = 0;
840 PL_curpad = 0; 930 PL_curpad = 0;
841 PL_localizing = 0; 931 PL_localizing = 0;
842 PL_dirty = 0; 932 PL_dirty = 0;
843 PL_restartop = 0; 933 PL_restartop = 0;
844#if PERL_VERSION_ATLEAST (5,10,0) 934#if PERL_VERSION_ATLEAST (5,10,0)
845 PL_parser = 0; 935 PL_parser = 0;
846#endif 936#endif
937 PL_hints = 0;
847 938
848 /* recreate the die/warn hooks */ 939 /* recreate the die/warn hooks */
849 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 940 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
850 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 941 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
851 942
852 GvSV (PL_defgv) = newSV (0); 943 GvSV (PL_defgv) = newSV (0);
853 GvAV (PL_defgv) = coro->args; coro->args = 0; 944 GvAV (PL_defgv) = coro->args; coro->args = 0;
854 GvSV (PL_errgv) = newSV (0); 945 GvSV (PL_errgv) = newSV (0);
855 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 946 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
947 GvHV (PL_hintgv) = 0;
856 PL_rs = newSVsv (GvSV (irsgv)); 948 PL_rs = newSVsv (GvSV (irsgv));
857 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 949 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
858 950
859 { 951 {
860 dSP; 952 dSP;
861 UNOP myop; 953 UNOP myop;
862 954
863 Zero (&myop, 1, UNOP); 955 Zero (&myop, 1, UNOP);
864 myop.op_next = Nullop; 956 myop.op_next = Nullop;
957 myop.op_type = OP_ENTERSUB;
865 myop.op_flags = OPf_WANT_VOID; 958 myop.op_flags = OPf_WANT_VOID;
866 959
867 PUSHMARK (SP); 960 PUSHMARK (SP);
868 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); 961 PUSHs ((SV *)coro->startcv);
869 PUTBACK; 962 PUTBACK;
870 PL_op = (OP *)&myop; 963 PL_op = (OP *)&myop;
871 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 964 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
872 SPAGAIN;
873 } 965 }
874 966
875 /* this newly created coroutine might be run on an existing cctx which most 967 /* 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. 968 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
877 */ 969 */
878 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 970 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
879 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 971 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
880 972
881 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 973 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
882 coro_setup_op.op_next = PL_op; 974 coro_setup_op.op_next = PL_op;
883 coro_setup_op.op_type = OP_CUSTOM; 975 coro_setup_op.op_type = OP_ENTERSUB;
884 coro_setup_op.op_ppaddr = pp_slf; 976 coro_setup_op.op_ppaddr = pp_slf;
885 /* no flags required, as an init function won't be called */ 977 /* no flags etc. required, as an init function won't be called */
886 978
887 PL_op = (OP *)&coro_setup_op; 979 PL_op = (OP *)&coro_setup_op;
888 980
889 /* copy throw, in case it was set before coro_setup */ 981 /* copy throw, in case it was set before coro_setup */
890 coro_throw = coro->throw; 982 CORO_THROW = coro->except;
891} 983}
892 984
893static void 985static void
894coro_destruct (pTHX_ struct coro *coro) 986coro_unwind_stacks (pTHX)
895{ 987{
896 if (!IN_DESTRUCT) 988 if (!IN_DESTRUCT)
897 { 989 {
898 /* restore all saved variables and stuff */ 990 /* restore all saved variables and stuff */
899 LEAVE_SCOPE (0); 991 LEAVE_SCOPE (0);
… …
907 POPSTACK_TO (PL_mainstack); 999 POPSTACK_TO (PL_mainstack);
908 1000
909 /* unwind main stack */ 1001 /* unwind main stack */
910 dounwind (-1); 1002 dounwind (-1);
911 } 1003 }
1004}
912 1005
913 SvREFCNT_dec (GvSV (PL_defgv)); 1006static void
914 SvREFCNT_dec (GvAV (PL_defgv)); 1007coro_destruct_perl (pTHX_ struct coro *coro)
915 SvREFCNT_dec (GvSV (PL_errgv)); 1008{
916 SvREFCNT_dec (PL_defoutgv); 1009 SV *svf [9];
917 SvREFCNT_dec (PL_rs);
918 SvREFCNT_dec (GvSV (irsgv));
919 1010
920 SvREFCNT_dec (PL_diehook);
921 SvREFCNT_dec (PL_warnhook);
922 1011 {
1012 struct coro *current = SvSTATE_current;
1013
1014 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1015
1016 save_perl (aTHX_ current);
1017 load_perl (aTHX_ coro);
1018
1019 coro_unwind_stacks (aTHX);
1020 coro_destruct_stacks (aTHX);
1021
1022 // now save some sv's to be free'd later
1023 svf [0] = GvSV (PL_defgv);
1024 svf [1] = (SV *)GvAV (PL_defgv);
1025 svf [2] = GvSV (PL_errgv);
1026 svf [3] = (SV *)PL_defoutgv;
1027 svf [4] = PL_rs;
1028 svf [5] = GvSV (irsgv);
1029 svf [6] = (SV *)GvHV (PL_hintgv);
1030 svf [7] = PL_diehook;
1031 svf [8] = PL_warnhook;
1032 assert (9 == sizeof (svf) / sizeof (*svf));
1033
1034 load_perl (aTHX_ current);
1035 }
1036
1037 {
1038 int i;
1039
1040 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1041 SvREFCNT_dec (svf [i]);
1042
923 SvREFCNT_dec (coro->saved_deffh); 1043 SvREFCNT_dec (coro->saved_deffh);
924 SvREFCNT_dec (coro_throw); 1044 SvREFCNT_dec (coro->rouse_cb);
925 1045 SvREFCNT_dec (coro->invoke_cb);
926 coro_destruct_stacks (aTHX); 1046 SvREFCNT_dec (coro->invoke_av);
1047 }
927} 1048}
928 1049
929INLINE void 1050INLINE void
930free_coro_mortal (pTHX) 1051free_coro_mortal (pTHX)
931{ 1052{
… …
939static int 1060static int
940runops_trace (pTHX) 1061runops_trace (pTHX)
941{ 1062{
942 COP *oldcop = 0; 1063 COP *oldcop = 0;
943 int oldcxix = -2; 1064 int oldcxix = -2;
944 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
945 coro_cctx *cctx = coro->cctx;
946 1065
947 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 1066 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
948 { 1067 {
949 PERL_ASYNC_CHECK (); 1068 PERL_ASYNC_CHECK ();
950 1069
951 if (cctx->flags & CC_TRACE_ALL) 1070 if (cctx_current->flags & CC_TRACE_ALL)
952 { 1071 {
953 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) 1072 if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
954 { 1073 {
955 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1074 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
956 SV **bot, **top; 1075 SV **bot, **top;
957 AV *av = newAV (); /* return values */ 1076 AV *av = newAV (); /* return values */
958 SV **cb; 1077 SV **cb;
… …
995 1114
996 if (PL_curcop != &PL_compiling) 1115 if (PL_curcop != &PL_compiling)
997 { 1116 {
998 SV **cb; 1117 SV **cb;
999 1118
1000 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 1119 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1001 { 1120 {
1002 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1121 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1003 1122
1004 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1123 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1005 { 1124 {
1006 runops_proc_t old_runops = PL_runops;
1007 dSP; 1125 dSP;
1008 GV *gv = CvGV (cx->blk_sub.cv); 1126 GV *gv = CvGV (cx->blk_sub.cv);
1009 SV *fullname = sv_2mortal (newSV (0)); 1127 SV *fullname = sv_2mortal (newSV (0));
1010 1128
1011 if (isGV (gv)) 1129 if (isGV (gv))
… …
1016 SAVETMPS; 1134 SAVETMPS;
1017 EXTEND (SP, 3); 1135 EXTEND (SP, 3);
1018 PUSHMARK (SP); 1136 PUSHMARK (SP);
1019 PUSHs (&PL_sv_yes); 1137 PUSHs (&PL_sv_yes);
1020 PUSHs (fullname); 1138 PUSHs (fullname);
1021 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); 1139 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1022 PUTBACK; 1140 PUTBACK;
1023 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); 1141 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); 1142 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1025 SPAGAIN; 1143 SPAGAIN;
1026 FREETMPS; 1144 FREETMPS;
… …
1029 } 1147 }
1030 1148
1031 oldcxix = cxstack_ix; 1149 oldcxix = cxstack_ix;
1032 } 1150 }
1033 1151
1034 if (cctx->flags & CC_TRACE_LINE) 1152 if (cctx_current->flags & CC_TRACE_LINE)
1035 { 1153 {
1036 dSP; 1154 dSP;
1037 1155
1038 PL_runops = RUNOPS_DEFAULT; 1156 PL_runops = RUNOPS_DEFAULT;
1039 ENTER; 1157 ENTER;
… …
1058 1176
1059 TAINT_NOT; 1177 TAINT_NOT;
1060 return 0; 1178 return 0;
1061} 1179}
1062 1180
1063static struct coro_cctx *cctx_ssl_cctx;
1064static struct CoroSLF cctx_ssl_frame; 1181static struct CoroSLF cctx_ssl_frame;
1065 1182
1066static void 1183static void
1067slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) 1184slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1068{ 1185{
1069 ta->prev = (struct coro *)cctx_ssl_cctx;
1070 ta->next = 0; 1186 ta->prev = 0;
1071} 1187}
1072 1188
1073static int 1189static int
1074slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) 1190slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1075{ 1191{
… …
1078 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1194 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1079} 1195}
1080 1196
1081/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1197/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1082static void NOINLINE 1198static void NOINLINE
1083cctx_prepare (pTHX_ coro_cctx *cctx) 1199cctx_prepare (pTHX)
1084{ 1200{
1085 PL_top_env = &PL_start_env; 1201 PL_top_env = &PL_start_env;
1086 1202
1087 if (cctx->flags & CC_TRACE) 1203 if (cctx_current->flags & CC_TRACE)
1088 PL_runops = runops_trace; 1204 PL_runops = runops_trace;
1089 1205
1090 /* we already must be executing an SLF op, there is no other valid way 1206 /* we already must be executing an SLF op, there is no other valid way
1091 * that can lead to creation of a new cctx */ 1207 * that can lead to creation of a new cctx */
1092 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", 1208 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1093 slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); 1209 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1094 1210
1095 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ 1211 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1096 cctx_ssl_cctx = cctx;
1097 cctx_ssl_frame = slf_frame; 1212 cctx_ssl_frame = slf_frame;
1098 1213
1099 slf_frame.prepare = slf_prepare_set_stacklevel; 1214 slf_frame.prepare = slf_prepare_set_stacklevel;
1100 slf_frame.check = slf_check_set_stacklevel; 1215 slf_frame.check = slf_check_set_stacklevel;
1101} 1216}
… …
1124 /* normally we would need to skip the entersub here */ 1239 /* normally we would need to skip the entersub here */
1125 /* not doing so will re-execute it, which is exactly what we want */ 1240 /* not doing so will re-execute it, which is exactly what we want */
1126 /* PL_nop = PL_nop->op_next */ 1241 /* PL_nop = PL_nop->op_next */
1127 1242
1128 /* inject a fake subroutine call to cctx_init */ 1243 /* inject a fake subroutine call to cctx_init */
1129 cctx_prepare (aTHX_ (coro_cctx *)arg); 1244 cctx_prepare (aTHX);
1130 1245
1131 /* cctx_run is the alternative tail of transfer() */ 1246 /* cctx_run is the alternative tail of transfer() */
1132 transfer_tail (aTHX); 1247 transfer_tail (aTHX);
1133 1248
1134 /* somebody or something will hit me for both perl_run and PL_restartop */ 1249 /* somebody or something will hit me for both perl_run and PL_restartop */
1135 PL_restartop = PL_op; 1250 PL_restartop = PL_op;
1136 perl_run (PL_curinterp); 1251 perl_run (PL_curinterp);
1252 /*
1253 * Unfortunately, there is no way to get at the return values of the
1254 * coro body here, as perl_run destroys these
1255 */
1137 1256
1138 /* 1257 /*
1139 * If perl-run returns we assume exit() was being called or the coro 1258 * If perl-run returns we assume exit() was being called or the coro
1140 * fell off the end, which seems to be the only valid (non-bug) 1259 * fell off the end, which seems to be the only valid (non-bug)
1141 * reason for perl_run to return. We try to exit by jumping to the 1260 * reason for perl_run to return. We try to exit by jumping to the
1142 * bootstrap-time "top" top_env, as we cannot restore the "main" 1261 * bootstrap-time "top" top_env, as we cannot restore the "main"
1143 * coroutine as Coro has no such concept 1262 * coroutine as Coro has no such concept.
1263 * This actually isn't valid with the pthread backend, but OSes requiring
1264 * that backend are too broken to do it in a standards-compliant way.
1144 */ 1265 */
1145 PL_top_env = main_top_env; 1266 PL_top_env = main_top_env;
1146 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 1267 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1147 } 1268 }
1148} 1269}
… …
1225cctx_destroy (coro_cctx *cctx) 1346cctx_destroy (coro_cctx *cctx)
1226{ 1347{
1227 if (!cctx) 1348 if (!cctx)
1228 return; 1349 return;
1229 1350
1351 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
1352
1230 --cctx_count; 1353 --cctx_count;
1231 coro_destroy (&cctx->cctx); 1354 coro_destroy (&cctx->cctx);
1232 1355
1233 /* coro_transfer creates new, empty cctx's */ 1356 /* coro_transfer creates new, empty cctx's */
1234 if (cctx->sptr) 1357 if (cctx->sptr)
… …
1297 /* TODO: throwing up here is considered harmful */ 1420 /* TODO: throwing up here is considered harmful */
1298 1421
1299 if (expect_true (prev != next)) 1422 if (expect_true (prev != next))
1300 { 1423 {
1301 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1424 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,"); 1425 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1303 1426
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)) 1427 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,"); 1428 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1309 1429
1310#if !PERL_VERSION_ATLEAST (5,10,0) 1430#if !PERL_VERSION_ATLEAST (5,10,0)
1311 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1431 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,"); 1432 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1313#endif 1433#endif
… …
1319transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1439transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1320{ 1440{
1321 dSTACKLEVEL; 1441 dSTACKLEVEL;
1322 1442
1323 /* sometimes transfer is only called to set idle_sp */ 1443 /* sometimes transfer is only called to set idle_sp */
1324 if (expect_false (!next)) 1444 if (expect_false (!prev))
1325 { 1445 {
1326 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1446 cctx_current->idle_sp = STACKLEVEL;
1327 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1447 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1328 } 1448 }
1329 else if (expect_true (prev != next)) 1449 else if (expect_true (prev != next))
1330 { 1450 {
1331 coro_cctx *prev__cctx; 1451 coro_cctx *cctx_prev;
1332 1452
1333 if (expect_false (prev->flags & CF_NEW)) 1453 if (expect_false (prev->flags & CF_NEW))
1334 { 1454 {
1335 /* create a new empty/source context */ 1455 /* create a new empty/source context */
1336 prev->cctx = cctx_new_empty ();
1337 prev->flags &= ~CF_NEW; 1456 prev->flags &= ~CF_NEW;
1338 prev->flags |= CF_RUNNING; 1457 prev->flags |= CF_RUNNING;
1339 } 1458 }
1340 1459
1341 prev->flags &= ~CF_RUNNING; 1460 prev->flags &= ~CF_RUNNING;
… …
1352 coro_setup (aTHX_ next); 1471 coro_setup (aTHX_ next);
1353 } 1472 }
1354 else 1473 else
1355 load_perl (aTHX_ next); 1474 load_perl (aTHX_ next);
1356 1475
1357 prev__cctx = prev->cctx;
1358
1359 /* possibly untie and reuse the cctx */ 1476 /* possibly untie and reuse the cctx */
1360 if (expect_true ( 1477 if (expect_true (
1361 prev__cctx->idle_sp == STACKLEVEL 1478 cctx_current->idle_sp == STACKLEVEL
1362 && !(prev__cctx->flags & CC_TRACE) 1479 && !(cctx_current->flags & CC_TRACE)
1363 && !force_cctx 1480 && !force_cctx
1364 )) 1481 ))
1365 { 1482 {
1366 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1483 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1367 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); 1484 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1368 1485
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 */ 1486 /* 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 */ 1487 /* without this the next cctx_get might destroy the running cctx while still in use */
1373 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1488 if (expect_false (CCTX_EXPIRED (cctx_current)))
1374 if (!next->cctx) 1489 if (expect_true (!next->cctx))
1375 next->cctx = cctx_get (aTHX); 1490 next->cctx = cctx_get (aTHX);
1376 1491
1377 cctx_put (prev__cctx); 1492 cctx_put (cctx_current);
1378 } 1493 }
1494 else
1495 prev->cctx = cctx_current;
1379 1496
1380 ++next->usecount; 1497 ++next->usecount;
1381 1498
1382 if (expect_true (!next->cctx)) 1499 cctx_prev = cctx_current;
1383 next->cctx = cctx_get (aTHX); 1500 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1384 1501
1385 if (expect_false (prev__cctx != next->cctx)) 1502 next->cctx = 0;
1503
1504 if (expect_false (cctx_prev != cctx_current))
1386 { 1505 {
1387 prev__cctx->top_env = PL_top_env; 1506 cctx_prev->top_env = PL_top_env;
1388 PL_top_env = next->cctx->top_env; 1507 PL_top_env = cctx_current->top_env;
1389 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1508 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1390 } 1509 }
1391 1510
1392 transfer_tail (aTHX); 1511 transfer_tail (aTHX);
1393 } 1512 }
1394} 1513}
… …
1402coro_state_destroy (pTHX_ struct coro *coro) 1521coro_state_destroy (pTHX_ struct coro *coro)
1403{ 1522{
1404 if (coro->flags & CF_DESTROYED) 1523 if (coro->flags & CF_DESTROYED)
1405 return 0; 1524 return 0;
1406 1525
1407 if (coro->on_destroy) 1526 if (coro->on_destroy && !PL_dirty)
1408 coro->on_destroy (aTHX_ coro); 1527 coro->on_destroy (aTHX_ coro);
1409 1528
1410 coro->flags |= CF_DESTROYED; 1529 coro->flags |= CF_DESTROYED;
1411 1530
1412 if (coro->flags & CF_READY) 1531 if (coro->flags & CF_READY)
… …
1416 --coro_nready; 1535 --coro_nready;
1417 } 1536 }
1418 else 1537 else
1419 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1538 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1420 1539
1421 if (coro->mainstack && coro->mainstack != main_mainstack) 1540 if (coro->mainstack
1422 { 1541 && coro->mainstack != main_mainstack
1423 struct coro temp; 1542 && coro->slot
1424 1543 && !PL_dirty)
1425 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1426
1427 save_perl (aTHX_ &temp);
1428 load_perl (aTHX_ coro);
1429
1430 coro_destruct (aTHX_ coro); 1544 coro_destruct_perl (aTHX_ coro);
1431
1432 load_perl (aTHX_ &temp);
1433
1434 coro->slot = 0;
1435 }
1436 1545
1437 cctx_destroy (coro->cctx); 1546 cctx_destroy (coro->cctx);
1547 SvREFCNT_dec (coro->startcv);
1438 SvREFCNT_dec (coro->args); 1548 SvREFCNT_dec (coro->args);
1549 SvREFCNT_dec (CORO_THROW);
1439 1550
1440 if (coro->next) coro->next->prev = coro->prev; 1551 if (coro->next) coro->next->prev = coro->prev;
1441 if (coro->prev) coro->prev->next = coro->next; 1552 if (coro->prev) coro->prev->next = coro->next;
1442 if (coro == coro_first) coro_first = coro->next; 1553 if (coro == coro_first) coro_first = coro->next;
1443 1554
… …
1497 1608
1498 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1609 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1499 TRANSFER (ta, 1); 1610 TRANSFER (ta, 1);
1500} 1611}
1501 1612
1613/*****************************************************************************/
1614/* gensub: simple closure generation utility */
1615
1616#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1617
1618/* create a closure from XS, returns a code reference */
1619/* the arg can be accessed via GENSUB_ARG from the callback */
1620/* the callback must use dXSARGS/XSRETURN */
1621static SV *
1622gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1623{
1624 CV *cv = (CV *)newSV (0);
1625
1626 sv_upgrade ((SV *)cv, SVt_PVCV);
1627
1628 CvANON_on (cv);
1629 CvISXSUB_on (cv);
1630 CvXSUB (cv) = xsub;
1631 GENSUB_ARG = arg;
1632
1633 return newRV_noinc ((SV *)cv);
1634}
1635
1502/** Coro ********************************************************************/ 1636/** Coro ********************************************************************/
1503 1637
1504INLINE void 1638INLINE void
1505coro_enq (pTHX_ struct coro *coro) 1639coro_enq (pTHX_ struct coro *coro)
1506{ 1640{
1507 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1641 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1508}
1509 1642
1510INLINE SV * 1643 SvREFCNT_inc_NN (coro->hv);
1644
1645 coro->next_ready = 0;
1646 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1647 ready [1] = coro;
1648}
1649
1650INLINE struct coro *
1511coro_deq (pTHX) 1651coro_deq (pTHX)
1512{ 1652{
1513 int prio; 1653 int prio;
1514 1654
1515 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1655 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1516 if (AvFILLp (coro_ready [prio]) >= 0) 1656 {
1517 return av_shift (coro_ready [prio]); 1657 struct coro **ready = coro_ready [prio];
1658
1659 if (ready [0])
1660 {
1661 struct coro *coro = ready [0];
1662 ready [0] = coro->next_ready;
1663 return coro;
1664 }
1665 }
1518 1666
1519 return 0; 1667 return 0;
1520} 1668}
1521 1669
1522static int 1670static int
… …
1524{ 1672{
1525 struct coro *coro; 1673 struct coro *coro;
1526 SV *sv_hook; 1674 SV *sv_hook;
1527 void (*xs_hook)(void); 1675 void (*xs_hook)(void);
1528 1676
1529 if (SvROK (coro_sv))
1530 coro_sv = SvRV (coro_sv);
1531
1532 coro = SvSTATE (coro_sv); 1677 coro = SvSTATE (coro_sv);
1533 1678
1534 if (coro->flags & CF_READY) 1679 if (coro->flags & CF_READY)
1535 return 0; 1680 return 0;
1536 1681
… …
1567api_is_ready (pTHX_ SV *coro_sv) 1712api_is_ready (pTHX_ SV *coro_sv)
1568{ 1713{
1569 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1714 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1570} 1715}
1571 1716
1717/* expects to own a reference to next->hv */
1572INLINE void 1718INLINE void
1573prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1719prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1574{ 1720{
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); 1721 SV *prev_sv = SvRV (coro_current);
1722
1614 ta->prev = SvSTATE_hv (prev_sv); 1723 ta->prev = SvSTATE_hv (prev_sv);
1724 ta->next = next;
1725
1615 TRANSFER_CHECK (*ta); 1726 TRANSFER_CHECK (*ta);
1616 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); 1727
1617 ta->next->flags &= ~CF_READY;
1618 SvRV_set (coro_current, next_sv); 1728 SvRV_set (coro_current, (SV *)next->hv);
1619 1729
1620 free_coro_mortal (aTHX); 1730 free_coro_mortal (aTHX);
1621 coro_mortal = prev_sv; 1731 coro_mortal = prev_sv;
1622} 1732}
1623 1733
1734static void
1735prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1736{
1737 for (;;)
1738 {
1739 struct coro *next = coro_deq (aTHX);
1740
1741 if (expect_true (next))
1742 {
1743 /* cannot transfer to destroyed coros, skip and look for next */
1744 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1745 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1746 else
1747 {
1748 next->flags &= ~CF_READY;
1749 --coro_nready;
1750
1751 prepare_schedule_to (aTHX_ ta, next);
1752 break;
1753 }
1754 }
1755 else
1756 {
1757 /* nothing to schedule: call the idle handler */
1758 if (SvROK (sv_idle)
1759 && SvOBJECT (SvRV (sv_idle)))
1760 {
1761 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1762 api_ready (aTHX_ SvRV (sv_idle));
1763 --coro_nready;
1764 }
1765 else
1766 {
1767 dSP;
1768
1769 ENTER;
1770 SAVETMPS;
1771
1772 PUSHMARK (SP);
1773 PUTBACK;
1774 call_sv (sv_idle, G_VOID | G_DISCARD);
1775
1776 FREETMPS;
1777 LEAVE;
1778 }
1779 }
1780 }
1781}
1782
1624INLINE void 1783INLINE void
1625prepare_cede (pTHX_ struct coro_transfer_args *ta) 1784prepare_cede (pTHX_ struct coro_transfer_args *ta)
1626{ 1785{
1627 api_ready (aTHX_ coro_current); 1786 api_ready (aTHX_ coro_current);
1628 prepare_schedule (aTHX_ ta); 1787 prepare_schedule (aTHX_ ta);
… …
1647{ 1806{
1648 struct coro_transfer_args ta; 1807 struct coro_transfer_args ta;
1649 1808
1650 prepare_schedule (aTHX_ &ta); 1809 prepare_schedule (aTHX_ &ta);
1651 TRANSFER (ta, 1); 1810 TRANSFER (ta, 1);
1811}
1812
1813static void
1814api_schedule_to (pTHX_ SV *coro_sv)
1815{
1816 struct coro_transfer_args ta;
1817 struct coro *next = SvSTATE (coro_sv);
1818
1819 SvREFCNT_inc_NN (coro_sv);
1820 prepare_schedule_to (aTHX_ &ta, next);
1652} 1821}
1653 1822
1654static int 1823static int
1655api_cede (pTHX) 1824api_cede (pTHX)
1656{ 1825{
… …
1685static void 1854static void
1686api_trace (pTHX_ SV *coro_sv, int flags) 1855api_trace (pTHX_ SV *coro_sv, int flags)
1687{ 1856{
1688 struct coro *coro = SvSTATE (coro_sv); 1857 struct coro *coro = SvSTATE (coro_sv);
1689 1858
1859 if (coro->flags & CF_RUNNING)
1860 croak ("cannot enable tracing on a running coroutine, caught");
1861
1690 if (flags & CC_TRACE) 1862 if (flags & CC_TRACE)
1691 { 1863 {
1692 if (!coro->cctx) 1864 if (!coro->cctx)
1693 coro->cctx = cctx_new_run (); 1865 coro->cctx = cctx_new_run ();
1694 else if (!(coro->cctx->flags & CC_TRACE)) 1866 else if (!(coro->cctx->flags & CC_TRACE))
1695 croak ("cannot enable tracing on coroutine with custom stack,"); 1867 croak ("cannot enable tracing on coroutine with custom stack, caught");
1696 1868
1697 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 1869 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1698 } 1870 }
1699 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 1871 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1700 { 1872 {
… …
1703 if (coro->flags & CF_RUNNING) 1875 if (coro->flags & CF_RUNNING)
1704 PL_runops = RUNOPS_DEFAULT; 1876 PL_runops = RUNOPS_DEFAULT;
1705 else 1877 else
1706 coro->slot->runops = RUNOPS_DEFAULT; 1878 coro->slot->runops = RUNOPS_DEFAULT;
1707 } 1879 }
1880}
1881
1882static void
1883coro_call_on_destroy (pTHX_ struct coro *coro)
1884{
1885 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
1886 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1887
1888 if (on_destroyp)
1889 {
1890 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1891
1892 while (AvFILLp (on_destroy) >= 0)
1893 {
1894 dSP; /* don't disturb outer sp */
1895 SV *cb = av_pop (on_destroy);
1896
1897 PUSHMARK (SP);
1898
1899 if (statusp)
1900 {
1901 int i;
1902 AV *status = (AV *)SvRV (*statusp);
1903 EXTEND (SP, AvFILLp (status) + 1);
1904
1905 for (i = 0; i <= AvFILLp (status); ++i)
1906 PUSHs (AvARRAY (status)[i]);
1907 }
1908
1909 PUTBACK;
1910 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
1911 }
1912 }
1913}
1914
1915static void
1916slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1917{
1918 int i;
1919 HV *hv = (HV *)SvRV (coro_current);
1920 AV *av = newAV ();
1921
1922 av_extend (av, items - 1);
1923 for (i = 0; i < items; ++i)
1924 av_push (av, SvREFCNT_inc_NN (arg [i]));
1925
1926 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
1927
1928 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1929 api_ready (aTHX_ sv_manager);
1930
1931 frame->prepare = prepare_schedule;
1932 frame->check = slf_check_repeat;
1933
1934 /* as a minor optimisation, we could unwind all stacks here */
1935 /* but that puts extra pressure on pp_slf, and is not worth much */
1936 /*coro_unwind_stacks (aTHX);*/
1937}
1938
1939/*****************************************************************************/
1940/* async pool handler */
1941
1942static int
1943slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
1944{
1945 HV *hv = (HV *)SvRV (coro_current);
1946 struct coro *coro = (struct coro *)frame->data;
1947
1948 if (!coro->invoke_cb)
1949 return 1; /* loop till we have invoke */
1950 else
1951 {
1952 hv_store (hv, "desc", sizeof ("desc") - 1,
1953 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1954
1955 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1956
1957 {
1958 dSP;
1959 XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
1960 PUTBACK;
1961 }
1962
1963 SvREFCNT_dec (GvAV (PL_defgv));
1964 GvAV (PL_defgv) = coro->invoke_av;
1965 coro->invoke_av = 0;
1966
1967 return 0;
1968 }
1969}
1970
1971static void
1972slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1973{
1974 HV *hv = (HV *)SvRV (coro_current);
1975 struct coro *coro = SvSTATE_hv ((SV *)hv);
1976
1977 if (expect_true (coro->saved_deffh))
1978 {
1979 /* subsequent iteration */
1980 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1981 coro->saved_deffh = 0;
1982
1983 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1984 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1985 {
1986 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
1987 coro->invoke_av = newAV ();
1988
1989 frame->prepare = prepare_nop;
1990 }
1991 else
1992 {
1993 av_clear (GvAV (PL_defgv));
1994 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
1995
1996 coro->prio = 0;
1997
1998 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1999 api_trace (aTHX_ coro_current, 0);
2000
2001 frame->prepare = prepare_schedule;
2002 av_push (av_async_pool, SvREFCNT_inc (hv));
2003 }
2004 }
2005 else
2006 {
2007 /* first iteration, simply fall through */
2008 frame->prepare = prepare_nop;
2009 }
2010
2011 frame->check = slf_check_pool_handler;
2012 frame->data = (void *)coro;
2013}
2014
2015/*****************************************************************************/
2016/* rouse callback */
2017
2018#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
2019
2020static void
2021coro_rouse_callback (pTHX_ CV *cv)
2022{
2023 dXSARGS;
2024 SV *data = (SV *)GENSUB_ARG;
2025
2026 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2027 {
2028 /* first call, set args */
2029 SV *coro = SvRV (data);
2030 AV *av = newAV ();
2031
2032 SvRV_set (data, (SV *)av);
2033
2034 /* better take a full copy of the arguments */
2035 while (items--)
2036 av_store (av, items, newSVsv (ST (items)));
2037
2038 api_ready (aTHX_ coro);
2039 SvREFCNT_dec (coro);
2040 }
2041
2042 XSRETURN_EMPTY;
2043}
2044
2045static int
2046slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
2047{
2048 SV *data = (SV *)frame->data;
2049
2050 if (CORO_THROW)
2051 return 0;
2052
2053 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2054 return 1;
2055
2056 /* now push all results on the stack */
2057 {
2058 dSP;
2059 AV *av = (AV *)SvRV (data);
2060 int i;
2061
2062 EXTEND (SP, AvFILLp (av) + 1);
2063 for (i = 0; i <= AvFILLp (av); ++i)
2064 PUSHs (sv_2mortal (AvARRAY (av)[i]));
2065
2066 /* we have stolen the elements, so set length to zero and free */
2067 AvFILLp (av) = -1;
2068 av_undef (av);
2069
2070 PUTBACK;
2071 }
2072
2073 return 0;
2074}
2075
2076static void
2077slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2078{
2079 SV *cb;
2080
2081 if (items)
2082 cb = arg [0];
2083 else
2084 {
2085 struct coro *coro = SvSTATE_current;
2086
2087 if (!coro->rouse_cb)
2088 croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
2089
2090 cb = sv_2mortal (coro->rouse_cb);
2091 coro->rouse_cb = 0;
2092 }
2093
2094 if (!SvROK (cb)
2095 || SvTYPE (SvRV (cb)) != SVt_PVCV
2096 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2097 croak ("Coro::rouse_wait called with illegal callback argument,");
2098
2099 {
2100 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */
2101 SV *data = (SV *)GENSUB_ARG;
2102
2103 frame->data = (void *)data;
2104 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2105 frame->check = slf_check_rouse_wait;
2106 }
2107}
2108
2109static SV *
2110coro_new_rouse_cb (pTHX)
2111{
2112 HV *hv = (HV *)SvRV (coro_current);
2113 struct coro *coro = SvSTATE_hv (hv);
2114 SV *data = newRV_inc ((SV *)hv);
2115 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);
2116
2117 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2118 SvREFCNT_dec (data); /* magicext increases the refcount */
2119
2120 SvREFCNT_dec (coro->rouse_cb);
2121 coro->rouse_cb = SvREFCNT_inc_NN (cb);
2122
2123 return cb;
1708} 2124}
1709 2125
1710/*****************************************************************************/ 2126/*****************************************************************************/
1711/* schedule-like-function opcode (SLF) */ 2127/* schedule-like-function opcode (SLF) */
1712 2128
… …
1759static void 2175static void
1760slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2176slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1761{ 2177{
1762 frame->prepare = prepare_schedule; 2178 frame->prepare = prepare_schedule;
1763 frame->check = slf_check_nop; 2179 frame->check = slf_check_nop;
2180}
2181
2182static void
2183slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
2184{
2185 struct coro *next = (struct coro *)slf_frame.data;
2186
2187 SvREFCNT_inc_NN (next->hv);
2188 prepare_schedule_to (aTHX_ ta, next);
2189}
2190
2191static void
2192slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2193{
2194 if (!items)
2195 croak ("Coro::schedule_to expects a coroutine argument, caught");
2196
2197 frame->data = (void *)SvSTATE (arg [0]);
2198 frame->prepare = slf_prepare_schedule_to;
2199 frame->check = slf_check_nop;
2200}
2201
2202static void
2203slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2204{
2205 api_ready (aTHX_ SvRV (coro_current));
2206
2207 slf_init_schedule_to (aTHX_ frame, cv, arg, items);
1764} 2208}
1765 2209
1766static void 2210static void
1767slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2211slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1768{ 2212{
… …
1840 while (slf_frame.check (aTHX_ &slf_frame)); 2284 while (slf_frame.check (aTHX_ &slf_frame));
1841 2285
1842 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2286 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1843 2287
1844 /* exception handling */ 2288 /* exception handling */
1845 if (expect_false (coro_throw)) 2289 if (expect_false (CORO_THROW))
1846 { 2290 {
1847 SV *exception = sv_2mortal (coro_throw); 2291 SV *exception = sv_2mortal (CORO_THROW);
1848 2292
1849 coro_throw = 0; 2293 CORO_THROW = 0;
1850 sv_setsv (ERRSV, exception); 2294 sv_setsv (ERRSV, exception);
1851 croak (0); 2295 croak (0);
1852 } 2296 }
1853 2297
1854 /* return value handling - mostly like entersub */ 2298 /* return value handling - mostly like entersub */
… …
1914 } 2358 }
1915 else 2359 else
1916 slf_argc = 0; 2360 slf_argc = 0;
1917 2361
1918 PL_op->op_ppaddr = pp_slf; 2362 PL_op->op_ppaddr = pp_slf;
1919 PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ 2363 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
1920 2364
1921 PL_op = (OP *)&slf_restore; 2365 PL_op = (OP *)&slf_restore;
2366}
2367
2368/*****************************************************************************/
2369/* dynamic wind */
2370
2371static void
2372on_enterleave_call (pTHX_ SV *cb)
2373{
2374 dSP;
2375
2376 PUSHSTACK;
2377
2378 PUSHMARK (SP);
2379 PUTBACK;
2380 call_sv (cb, G_VOID | G_DISCARD);
2381 SPAGAIN;
2382
2383 POPSTACK;
2384}
2385
2386static SV *
2387coro_avp_pop_and_free (pTHX_ AV **avp)
2388{
2389 AV *av = *avp;
2390 SV *res = av_pop (av);
2391
2392 if (AvFILLp (av) < 0)
2393 {
2394 *avp = 0;
2395 SvREFCNT_dec (av);
2396 }
2397
2398 return res;
2399}
2400
2401static void
2402coro_pop_on_enter (pTHX_ void *coro)
2403{
2404 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2405 SvREFCNT_dec (cb);
2406}
2407
2408static void
2409coro_pop_on_leave (pTHX_ void *coro)
2410{
2411 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2412 on_enterleave_call (aTHX_ sv_2mortal (cb));
1922} 2413}
1923 2414
1924/*****************************************************************************/ 2415/*****************************************************************************/
1925/* PerlIO::cede */ 2416/* PerlIO::cede */
1926 2417
… …
1995 PerlIOBuf_get_cnt, 2486 PerlIOBuf_get_cnt,
1996 PerlIOBuf_set_ptrcnt, 2487 PerlIOBuf_set_ptrcnt,
1997}; 2488};
1998 2489
1999/*****************************************************************************/ 2490/*****************************************************************************/
2491/* Coro::Semaphore & Coro::Signal */
2492
2493static SV *
2494coro_waitarray_new (pTHX_ int count)
2495{
2496 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2497 AV *av = newAV ();
2498 SV **ary;
2499
2500 /* unfortunately, building manually saves memory */
2501 Newx (ary, 2, SV *);
2502 AvALLOC (av) = ary;
2503#if PERL_VERSION_ATLEAST (5,10,0)
2504 AvARRAY (av) = ary;
2505#else
2506 /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
2507 /* -DDEBUGGING flags this as a bug, despite it perfectly working */
2508 SvPVX ((SV *)av) = (char *)ary;
2509#endif
2510 AvMAX (av) = 1;
2511 AvFILLp (av) = 0;
2512 ary [0] = newSViv (count);
2513
2514 return newRV_noinc ((SV *)av);
2515}
2516
2000/* Coro::Semaphore */ 2517/* semaphore */
2001 2518
2002static void 2519static void
2003coro_semaphore_adjust (pTHX_ AV *av, IV adjust) 2520coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2004{ 2521{
2005 SV *count_sv = AvARRAY (av)[0]; 2522 SV *count_sv = AvARRAY (av)[0];
… …
2017 AvARRAY (av)[0] = AvARRAY (av)[1]; 2534 AvARRAY (av)[0] = AvARRAY (av)[1];
2018 AvARRAY (av)[1] = count_sv; 2535 AvARRAY (av)[1] = count_sv;
2019 cb = av_shift (av); 2536 cb = av_shift (av);
2020 2537
2021 if (SvOBJECT (cb)) 2538 if (SvOBJECT (cb))
2539 {
2022 api_ready (aTHX_ cb); 2540 api_ready (aTHX_ cb);
2023 else 2541 --count;
2024 croak ("callbacks not yet supported"); 2542 }
2543 else if (SvTYPE (cb) == SVt_PVCV)
2544 {
2545 dSP;
2546 PUSHMARK (SP);
2547 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2548 PUTBACK;
2549 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2550 }
2025 2551
2026 SvREFCNT_dec (cb); 2552 SvREFCNT_dec (cb);
2027
2028 --count;
2029 } 2553 }
2030} 2554}
2031 2555
2032static void 2556static void
2033coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2557coro_semaphore_on_destroy (pTHX_ struct coro *coro)
… …
2035 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2559 /* call $sem->adjust (0) to possibly wake up some other waiters */
2036 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2560 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2037} 2561}
2038 2562
2039static int 2563static int
2040slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) 2564slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2041{ 2565{
2042 AV *av = (AV *)frame->data; 2566 AV *av = (AV *)frame->data;
2043 SV *count_sv = AvARRAY (av)[0]; 2567 SV *count_sv = AvARRAY (av)[0];
2044 2568
2045 /* if we are about to throw, don't actually acquire the lock, just throw */ 2569 /* if we are about to throw, don't actually acquire the lock, just throw */
2046 if (coro_throw) 2570 if (CORO_THROW)
2047 return 0; 2571 return 0;
2048 else if (SvIVX (count_sv) > 0) 2572 else if (SvIVX (count_sv) > 0)
2049 { 2573 {
2050 SvSTATE_current->on_destroy = 0; 2574 SvSTATE_current->on_destroy = 0;
2575
2576 if (acquire)
2051 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2577 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2578 else
2579 coro_semaphore_adjust (aTHX_ av, 0);
2580
2052 return 0; 2581 return 0;
2053 } 2582 }
2054 else 2583 else
2055 { 2584 {
2056 int i; 2585 int i;
… …
2065 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2594 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2066 return 1; 2595 return 1;
2067 } 2596 }
2068} 2597}
2069 2598
2070static void 2599static int
2600slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
2601{
2602 return slf_check_semaphore_down_or_wait (aTHX_ frame, 1);
2603}
2604
2605static int
2606slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame)
2607{
2608 return slf_check_semaphore_down_or_wait (aTHX_ frame, 0);
2609}
2610
2611static void
2071slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2612slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2072{ 2613{
2073 AV *av = (AV *)SvRV (arg [0]); 2614 AV *av = (AV *)SvRV (arg [0]);
2074 2615
2075 if (SvIVX (AvARRAY (av)[0]) > 0) 2616 if (SvIVX (AvARRAY (av)[0]) > 0)
2076 { 2617 {
… …
2086 2627
2087 /* to avoid race conditions when a woken-up coro gets terminated */ 2628 /* to avoid race conditions when a woken-up coro gets terminated */
2088 /* we arrange for a temporary on_destroy that calls adjust (0) */ 2629 /* we arrange for a temporary on_destroy that calls adjust (0) */
2089 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 2630 SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2090 } 2631 }
2632}
2091 2633
2634static void
2635slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2636{
2637 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2092 frame->check = slf_check_semaphore_down; 2638 frame->check = slf_check_semaphore_down;
2093
2094} 2639}
2095 2640
2096/*****************************************************************************/ 2641static void
2097/* gensub: simple closure generation utility */ 2642slf_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{ 2643{
2107 CV *cv = (CV *)newSV (0); 2644 if (items >= 2)
2645 {
2646 /* callback form */
2647 AV *av = (AV *)SvRV (arg [0]);
2648 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2108 2649
2109 sv_upgrade ((SV *)cv, SVt_PVCV); 2650 av_push (av, SvREFCNT_inc_NN (cb_cv));
2110 2651
2111 CvANON_on (cv); 2652 if (SvIVX (AvARRAY (av)[0]) > 0)
2112 CvISXSUB_on (cv); 2653 coro_semaphore_adjust (aTHX_ av, 0);
2113 CvXSUB (cv) = xsub;
2114 GENSUB_ARG = arg;
2115 2654
2116 return newRV_noinc ((SV *)cv); 2655 frame->prepare = prepare_nop;
2656 frame->check = slf_check_nop;
2657 }
2658 else
2659 {
2660 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2661 frame->check = slf_check_semaphore_wait;
2662 }
2663}
2664
2665/* signal */
2666
2667static void
2668coro_signal_wake (pTHX_ AV *av, int count)
2669{
2670 SvIVX (AvARRAY (av)[0]) = 0;
2671
2672 /* now signal count waiters */
2673 while (count > 0 && AvFILLp (av) > 0)
2674 {
2675 SV *cb;
2676
2677 /* swap first two elements so we can shift a waiter */
2678 cb = AvARRAY (av)[0];
2679 AvARRAY (av)[0] = AvARRAY (av)[1];
2680 AvARRAY (av)[1] = cb;
2681
2682 cb = av_shift (av);
2683
2684 if (SvTYPE (cb) == SVt_PVCV)
2685 {
2686 dSP;
2687 PUSHMARK (SP);
2688 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2689 PUTBACK;
2690 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2691 }
2692 else
2693 {
2694 api_ready (aTHX_ cb);
2695 sv_setiv (cb, 0); /* signal waiter */
2696 }
2697
2698 SvREFCNT_dec (cb);
2699
2700 --count;
2701 }
2702}
2703
2704static int
2705slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
2706{
2707 /* if we are about to throw, also stop waiting */
2708 return SvROK ((SV *)frame->data) && !CORO_THROW;
2709}
2710
2711static void
2712slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2713{
2714 AV *av = (AV *)SvRV (arg [0]);
2715
2716 if (items >= 2)
2717 {
2718 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2719 av_push (av, SvREFCNT_inc_NN (cb_cv));
2720
2721 if (SvIVX (AvARRAY (av)[0]))
2722 coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */
2723
2724 frame->prepare = prepare_nop;
2725 frame->check = slf_check_nop;
2726 }
2727 else if (SvIVX (AvARRAY (av)[0]))
2728 {
2729 SvIVX (AvARRAY (av)[0]) = 0;
2730 frame->prepare = prepare_nop;
2731 frame->check = slf_check_nop;
2732 }
2733 else
2734 {
2735 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2736
2737 av_push (av, waiter);
2738
2739 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2740 frame->prepare = prepare_schedule;
2741 frame->check = slf_check_signal_wait;
2742 }
2117} 2743}
2118 2744
2119/*****************************************************************************/ 2745/*****************************************************************************/
2120/* Coro::AIO */ 2746/* Coro::AIO */
2121 2747
… …
2136 dXSARGS; 2762 dXSARGS;
2137 AV *state = (AV *)GENSUB_ARG; 2763 AV *state = (AV *)GENSUB_ARG;
2138 SV *coro = av_pop (state); 2764 SV *coro = av_pop (state);
2139 SV *data_sv = newSV (sizeof (struct io_state)); 2765 SV *data_sv = newSV (sizeof (struct io_state));
2140 2766
2141 av_extend (state, items); 2767 av_extend (state, items - 1);
2142 2768
2143 sv_upgrade (data_sv, SVt_PV); 2769 sv_upgrade (data_sv, SVt_PV);
2144 SvCUR_set (data_sv, sizeof (struct io_state)); 2770 SvCUR_set (data_sv, sizeof (struct io_state));
2145 SvPOK_only (data_sv); 2771 SvPOK_only (data_sv);
2146 2772
… …
2174 AV *state = (AV *)frame->data; 2800 AV *state = (AV *)frame->data;
2175 2801
2176 /* if we are about to throw, return early */ 2802 /* if we are about to throw, return early */
2177 /* this does not cancel the aio request, but at least */ 2803 /* this does not cancel the aio request, but at least */
2178 /* it quickly returns */ 2804 /* it quickly returns */
2179 if (coro_throw) 2805 if (CORO_THROW)
2180 return 0; 2806 return 0;
2181 2807
2182 /* one element that is an RV? repeat! */ 2808 /* one element that is an RV? repeat! */
2183 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 2809 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))
2184 return 1; 2810 return 1;
… …
2281 XSRETURN_EMPTY; 2907 XSRETURN_EMPTY;
2282} 2908}
2283 2909
2284/*****************************************************************************/ 2910/*****************************************************************************/
2285 2911
2912#if CORO_CLONE
2913# include "clone.c"
2914#endif
2915
2286MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 2916MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2287 2917
2288PROTOTYPES: DISABLE 2918PROTOTYPES: DISABLE
2289 2919
2290BOOT: 2920BOOT:
… …
2294 coro_thx = PERL_GET_CONTEXT; 2924 coro_thx = PERL_GET_CONTEXT;
2295# endif 2925# endif
2296#endif 2926#endif
2297 BOOT_PAGESIZE; 2927 BOOT_PAGESIZE;
2298 2928
2929 cctx_current = cctx_new_empty ();
2930
2299 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 2931 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2300 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 2932 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2301 2933
2302 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 2934 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2303 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; 2935 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
… …
2322 2954
2323 { 2955 {
2324 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); 2956 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2325 2957
2326 if (!PL_custom_op_names) PL_custom_op_names = newHV (); 2958 if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2327 hv_store_ent (PL_custom_op_names, slf, 2959 hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2328 newSVpv ("coro_slf", 0), 0);
2329 2960
2330 if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); 2961 if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2331 hv_store_ent (PL_custom_op_descs, slf, 2962 hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2332 newSVpv ("coro schedule like function", 0), 0);
2333 } 2963 }
2334 2964
2335 coroapi.ver = CORO_API_VERSION; 2965 coroapi.ver = CORO_API_VERSION;
2336 coroapi.rev = CORO_API_REVISION; 2966 coroapi.rev = CORO_API_REVISION;
2337 2967
… …
2351 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); 2981 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2352 2982
2353 nvtime = INT2PTR (double (*)(), SvIV (*svp)); 2983 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2354 } 2984 }
2355 2985
2356 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 2986 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2357} 2987}
2358 2988
2359SV * 2989SV *
2360new (char *klass, ...) 2990new (char *klass, ...)
2991 ALIAS:
2992 Coro::new = 1
2361 CODE: 2993 CODE:
2362{ 2994{
2363 struct coro *coro; 2995 struct coro *coro;
2364 MAGIC *mg; 2996 MAGIC *mg;
2365 HV *hv; 2997 HV *hv;
2998 CV *cb;
2366 int i; 2999 int i;
3000
3001 if (items > 1)
3002 {
3003 cb = coro_sv_2cv (aTHX_ ST (1));
3004
3005 if (!ix)
3006 {
3007 if (CvISXSUB (cb))
3008 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3009
3010 if (!CvROOT (cb))
3011 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3012 }
3013 }
2367 3014
2368 Newz (0, coro, 1, struct coro); 3015 Newz (0, coro, 1, struct coro);
2369 coro->args = newAV (); 3016 coro->args = newAV ();
2370 coro->flags = CF_NEW; 3017 coro->flags = CF_NEW;
2371 3018
… …
2376 coro->hv = hv = newHV (); 3023 coro->hv = hv = newHV ();
2377 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); 3024 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2378 mg->mg_flags |= MGf_DUP; 3025 mg->mg_flags |= MGf_DUP;
2379 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 3026 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2380 3027
3028 if (items > 1)
3029 {
2381 av_extend (coro->args, items - 1); 3030 av_extend (coro->args, items - 1 + ix - 1);
3031
3032 if (ix)
3033 {
3034 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3035 cb = cv_coro_run;
3036 }
3037
3038 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3039
2382 for (i = 1; i < items; i++) 3040 for (i = 2; i < items; i++)
2383 av_push (coro->args, newSVsv (ST (i))); 3041 av_push (coro->args, newSVsv (ST (i)));
3042 }
2384} 3043}
2385 OUTPUT: 3044 OUTPUT:
2386 RETVAL 3045 RETVAL
2387 3046
2388void 3047void
… …
2401void 3060void
2402_exit (int code) 3061_exit (int code)
2403 PROTOTYPE: $ 3062 PROTOTYPE: $
2404 CODE: 3063 CODE:
2405 _exit (code); 3064 _exit (code);
3065
3066SV *
3067clone (Coro::State coro)
3068 CODE:
3069{
3070#if CORO_CLONE
3071 struct coro *ncoro = coro_clone (aTHX_ coro);
3072 MAGIC *mg;
3073 /* TODO: too much duplication */
3074 ncoro->hv = newHV ();
3075 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
3076 mg->mg_flags |= MGf_DUP;
3077 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
3078#else
3079 croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
3080#endif
3081}
3082 OUTPUT:
3083 RETVAL
2406 3084
2407int 3085int
2408cctx_stacksize (int new_stacksize = 0) 3086cctx_stacksize (int new_stacksize = 0)
2409 PROTOTYPE: ;$ 3087 PROTOTYPE: ;$
2410 CODE: 3088 CODE:
… …
2460 eval = 1 3138 eval = 1
2461 CODE: 3139 CODE:
2462{ 3140{
2463 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3141 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2464 { 3142 {
2465 struct coro temp; 3143 struct coro *current = SvSTATE_current;
2466 3144
2467 if (!(coro->flags & CF_RUNNING)) 3145 if (current != coro)
2468 { 3146 {
2469 PUTBACK; 3147 PUTBACK;
2470 save_perl (aTHX_ &temp); 3148 save_perl (aTHX_ current);
2471 load_perl (aTHX_ coro); 3149 load_perl (aTHX_ coro);
3150 SPAGAIN;
2472 } 3151 }
2473 3152
2474 {
2475 dSP;
2476 ENTER;
2477 SAVETMPS;
2478 PUTBACK;
2479 PUSHSTACK; 3153 PUSHSTACK;
3154
2480 PUSHMARK (SP); 3155 PUSHMARK (SP);
3156 PUTBACK;
2481 3157
2482 if (ix) 3158 if (ix)
2483 eval_sv (coderef, 0); 3159 eval_sv (coderef, 0);
2484 else 3160 else
2485 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3161 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2486 3162
2487 POPSTACK; 3163 POPSTACK;
2488 SPAGAIN; 3164 SPAGAIN;
2489 FREETMPS;
2490 LEAVE;
2491 PUTBACK;
2492 }
2493 3165
2494 if (!(coro->flags & CF_RUNNING)) 3166 if (current != coro)
2495 { 3167 {
3168 PUTBACK;
2496 save_perl (aTHX_ coro); 3169 save_perl (aTHX_ coro);
2497 load_perl (aTHX_ &temp); 3170 load_perl (aTHX_ current);
2498 SPAGAIN; 3171 SPAGAIN;
2499 } 3172 }
2500 } 3173 }
2501} 3174}
2502 3175
… …
2506 ALIAS: 3179 ALIAS:
2507 is_ready = CF_READY 3180 is_ready = CF_READY
2508 is_running = CF_RUNNING 3181 is_running = CF_RUNNING
2509 is_new = CF_NEW 3182 is_new = CF_NEW
2510 is_destroyed = CF_DESTROYED 3183 is_destroyed = CF_DESTROYED
3184 is_suspended = CF_SUSPENDED
2511 CODE: 3185 CODE:
2512 RETVAL = boolSV (coro->flags & ix); 3186 RETVAL = boolSV (coro->flags & ix);
2513 OUTPUT: 3187 OUTPUT:
2514 RETVAL 3188 RETVAL
2515 3189
… …
2517throw (Coro::State self, SV *throw = &PL_sv_undef) 3191throw (Coro::State self, SV *throw = &PL_sv_undef)
2518 PROTOTYPE: $;$ 3192 PROTOTYPE: $;$
2519 CODE: 3193 CODE:
2520{ 3194{
2521 struct coro *current = SvSTATE_current; 3195 struct coro *current = SvSTATE_current;
2522 SV **throwp = self == current ? &coro_throw : &self->throw; 3196 SV **throwp = self == current ? &CORO_THROW : &self->except;
2523 SvREFCNT_dec (*throwp); 3197 SvREFCNT_dec (*throwp);
3198 SvGETMAGIC (throw);
2524 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3199 *throwp = SvOK (throw) ? newSVsv (throw) : 0;
2525} 3200}
2526 3201
2527void 3202void
2528api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3203api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
… …
2531 3206
2532SV * 3207SV *
2533has_cctx (Coro::State coro) 3208has_cctx (Coro::State coro)
2534 PROTOTYPE: $ 3209 PROTOTYPE: $
2535 CODE: 3210 CODE:
2536 RETVAL = boolSV (!!coro->cctx); 3211 /* maybe manage the running flag differently */
3212 RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2537 OUTPUT: 3213 OUTPUT:
2538 RETVAL 3214 RETVAL
2539 3215
2540int 3216int
2541is_traced (Coro::State coro) 3217is_traced (Coro::State coro)
… …
2561 3237
2562void 3238void
2563force_cctx () 3239force_cctx ()
2564 PROTOTYPE: 3240 PROTOTYPE:
2565 CODE: 3241 CODE:
2566 SvSTATE_current->cctx->idle_sp = 0; 3242 cctx_current->idle_sp = 0;
2567 3243
2568void 3244void
2569swap_defsv (Coro::State self) 3245swap_defsv (Coro::State self)
2570 PROTOTYPE: $ 3246 PROTOTYPE: $
2571 ALIAS: 3247 ALIAS:
… …
2579 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3255 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2580 3256
2581 SV *tmp = *src; *src = *dst; *dst = tmp; 3257 SV *tmp = *src; *src = *dst; *dst = tmp;
2582 } 3258 }
2583 3259
3260void
3261cancel (Coro::State self)
3262 CODE:
3263 coro_state_destroy (aTHX_ self);
3264 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
3265
2584 3266
2585MODULE = Coro::State PACKAGE = Coro 3267MODULE = Coro::State PACKAGE = Coro
2586 3268
2587BOOT: 3269BOOT:
2588{ 3270{
2589 int i;
2590
2591 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2592 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3271 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2593 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3272 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2594 3273 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3274 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2595 coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); 3275 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2596 SvREADONLY_on (coro_current); 3276 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3277 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3278 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3279 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3280
3281 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3282 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3283 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3284 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2597 3285
2598 coro_stash = gv_stashpv ("Coro", TRUE); 3286 coro_stash = gv_stashpv ("Coro", TRUE);
2599 3287
2600 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3288 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
2601 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3289 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
2602 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3290 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
2603 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3291 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
2604 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3292 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
2605 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3293 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
2606
2607 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
2608 coro_ready[i] = newAV ();
2609 3294
2610 { 3295 {
2611 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3296 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2612 3297
2613 coroapi.schedule = api_schedule; 3298 coroapi.schedule = api_schedule;
3299 coroapi.schedule_to = api_schedule_to;
2614 coroapi.cede = api_cede; 3300 coroapi.cede = api_cede;
2615 coroapi.cede_notself = api_cede_notself; 3301 coroapi.cede_notself = api_cede_notself;
2616 coroapi.ready = api_ready; 3302 coroapi.ready = api_ready;
2617 coroapi.is_ready = api_is_ready; 3303 coroapi.is_ready = api_is_ready;
2618 coroapi.nready = coro_nready; 3304 coroapi.nready = coro_nready;
2619 coroapi.current = coro_current; 3305 coroapi.current = coro_current;
2620 3306
2621 GCoroAPI = &coroapi; 3307 /*GCoroAPI = &coroapi;*/
2622 sv_setiv (sv, (IV)&coroapi); 3308 sv_setiv (sv, (IV)&coroapi);
2623 SvREADONLY_on (sv); 3309 SvREADONLY_on (sv);
2624 } 3310 }
2625} 3311}
3312
3313void
3314terminate (...)
3315 CODE:
3316 CORO_EXECUTE_SLF_XS (slf_init_terminate);
2626 3317
2627void 3318void
2628schedule (...) 3319schedule (...)
2629 CODE: 3320 CODE:
2630 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3321 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3322
3323void
3324schedule_to (...)
3325 CODE:
3326 CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
3327
3328void
3329cede_to (...)
3330 CODE:
3331 CORO_EXECUTE_SLF_XS (slf_init_cede_to);
2631 3332
2632void 3333void
2633cede (...) 3334cede (...)
2634 CODE: 3335 CODE:
2635 CORO_EXECUTE_SLF_XS (slf_init_cede); 3336 CORO_EXECUTE_SLF_XS (slf_init_cede);
… …
2649void 3350void
2650_set_readyhook (SV *hook) 3351_set_readyhook (SV *hook)
2651 PROTOTYPE: $ 3352 PROTOTYPE: $
2652 CODE: 3353 CODE:
2653 SvREFCNT_dec (coro_readyhook); 3354 SvREFCNT_dec (coro_readyhook);
3355 SvGETMAGIC (hook);
2654 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3356 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
2655 3357
2656int 3358int
2657prio (Coro::State coro, int newprio = 0) 3359prio (Coro::State coro, int newprio = 0)
2658 PROTOTYPE: $;$ 3360 PROTOTYPE: $;$
… …
2690 CODE: 3392 CODE:
2691 RETVAL = coro_nready; 3393 RETVAL = coro_nready;
2692 OUTPUT: 3394 OUTPUT:
2693 RETVAL 3395 RETVAL
2694 3396
2695# for async_pool speedup
2696void 3397void
2697_pool_1 (SV *cb) 3398suspend (Coro::State self)
3399 PROTOTYPE: $
2698 CODE: 3400 CODE:
2699{ 3401 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 3402
2707 if (!invoke) 3403void
3404resume (Coro::State self)
3405 PROTOTYPE: $
3406 CODE:
3407 self->flags &= ~CF_SUSPENDED;
3408
3409void
3410_pool_handler (...)
3411 CODE:
3412 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3413
3414void
3415async_pool (SV *cv, ...)
3416 PROTOTYPE: &@
3417 PPCODE:
3418{
3419 HV *hv = (HV *)av_pop (av_async_pool);
3420 AV *av = newAV ();
3421 SV *cb = ST (0);
3422 int i;
3423
3424 av_extend (av, items - 2);
3425 for (i = 1; i < items; ++i)
3426 av_push (av, SvREFCNT_inc_NN (ST (i)));
3427
3428 if ((SV *)hv == &PL_sv_undef)
2708 { 3429 {
2709 SV *old = PL_diehook; 3430 PUSHMARK (SP);
2710 PL_diehook = 0; 3431 EXTEND (SP, 2);
2711 SvREFCNT_dec (old); 3432 PUSHs (sv_Coro);
2712 croak ("\3async_pool terminate\2\n"); 3433 PUSHs ((SV *)cv_pool_handler);
3434 PUTBACK;
3435 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3436 SPAGAIN;
3437
3438 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
2713 } 3439 }
2714 3440
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 { 3441 {
2728 av_fill (defav, len - 1); 3442 struct coro *coro = SvSTATE_hv (hv);
2729 for (i = 0; i < len; ++i) 3443
2730 av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); 3444 assert (!coro->invoke_cb);
3445 assert (!coro->invoke_av);
3446 coro->invoke_cb = SvREFCNT_inc (cb);
3447 coro->invoke_av = av;
2731 } 3448 }
3449
3450 api_ready (aTHX_ (SV *)hv);
3451
3452 if (GIMME_V != G_VOID)
3453 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3454 else
3455 SvREFCNT_dec (hv);
2732} 3456}
3457
3458SV *
3459rouse_cb ()
3460 PROTOTYPE:
3461 CODE:
3462 RETVAL = coro_new_rouse_cb (aTHX);
3463 OUTPUT:
3464 RETVAL
2733 3465
2734void 3466void
2735_pool_2 (SV *cb) 3467rouse_wait (...)
3468 PROTOTYPE: ;$
3469 PPCODE:
3470 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3471
3472void
3473on_enter (SV *block)
3474 ALIAS:
3475 on_leave = 1
3476 PROTOTYPE: &
2736 CODE: 3477 CODE:
2737{ 3478{
2738 HV *hv = (HV *)SvRV (coro_current);
2739 struct coro *coro = SvSTATE_hv ((SV *)hv); 3479 struct coro *coro = SvSTATE_current;
3480 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
2740 3481
2741 sv_setsv (cb, &PL_sv_undef); 3482 block = (SV *)coro_sv_2cv (aTHX_ block);
2742 3483
2743 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 3484 if (!*avp)
2744 coro->saved_deffh = 0; 3485 *avp = newAV ();
2745 3486
2746 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 3487 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 3488
2755 av_clear (GvAV (PL_defgv)); 3489 if (!ix)
2756 hv_store (hv, "desc", sizeof ("desc") - 1, 3490 on_enterleave_call (aTHX_ block);
2757 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
2758 3491
2759 coro->prio = 0; 3492 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
2760 3493 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
2761 if (coro->cctx && (coro->cctx->flags & CC_TRACE)) 3494 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} 3495}
2766 3496
2767 3497
2768MODULE = Coro::State PACKAGE = PerlIO::cede 3498MODULE = Coro::State PACKAGE = PerlIO::cede
2769 3499
… …
2772 3502
2773 3503
2774MODULE = Coro::State PACKAGE = Coro::Semaphore 3504MODULE = Coro::State PACKAGE = Coro::Semaphore
2775 3505
2776SV * 3506SV *
2777new (SV *klass, SV *count_ = 0) 3507new (SV *klass, SV *count = 0)
2778 CODE: 3508 CODE:
2779{ 3509{
2780 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 3510 int semcnt = 1;
2781 AV *av = newAV ();
2782 SV **ary;
2783 3511
2784 /* unfortunately, building manually saves memory */ 3512 if (count)
2785 Newx (ary, 2, SV *); 3513 {
2786 AvALLOC (av) = ary; 3514 SvGETMAGIC (count);
2787 AvARRAY (av) = ary;
2788 AvMAX (av) = 1;
2789 AvFILLp (av) = 0;
2790 ary [0] = newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1);
2791 3515
2792 RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv))); 3516 if (SvOK (count))
3517 semcnt = SvIV (count);
3518 }
3519
3520 RETVAL = sv_bless (
3521 coro_waitarray_new (aTHX_ semcnt),
3522 GvSTASH (CvGV (cv))
3523 );
2793} 3524}
3525 OUTPUT:
3526 RETVAL
3527
3528# helper for Coro::Channel and others
3529SV *
3530_alloc (int count)
3531 CODE:
3532 RETVAL = coro_waitarray_new (aTHX_ count);
2794 OUTPUT: 3533 OUTPUT:
2795 RETVAL 3534 RETVAL
2796 3535
2797SV * 3536SV *
2798count (SV *self) 3537count (SV *self)
… …
2807 adjust = 1 3546 adjust = 1
2808 CODE: 3547 CODE:
2809 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); 3548 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2810 3549
2811void 3550void
2812down (SV *self) 3551down (...)
2813 CODE: 3552 CODE:
2814 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); 3553 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
3554
3555void
3556wait (...)
3557 CODE:
3558 CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
2815 3559
2816void 3560void
2817try (SV *self) 3561try (SV *self)
2818 PPCODE: 3562 PPCODE:
2819{ 3563{
… …
2831 XSRETURN_NO; 3575 XSRETURN_NO;
2832} 3576}
2833 3577
2834void 3578void
2835waiters (SV *self) 3579waiters (SV *self)
2836 CODE: 3580 PPCODE:
2837{ 3581{
2838 AV *av = (AV *)SvRV (self); 3582 AV *av = (AV *)SvRV (self);
3583 int wcount = AvFILLp (av) + 1 - 1;
2839 3584
2840 if (GIMME_V == G_SCALAR) 3585 if (GIMME_V == G_SCALAR)
2841 XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); 3586 XPUSHs (sv_2mortal (newSViv (wcount)));
2842 else 3587 else
2843 { 3588 {
2844 int i; 3589 int i;
2845 EXTEND (SP, AvFILLp (av) + 1 - 1); 3590 EXTEND (SP, wcount);
2846 for (i = 1; i <= AvFILLp (av); ++i) 3591 for (i = 1; i <= wcount; ++i)
2847 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 3592 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
2848 } 3593 }
2849} 3594}
3595
3596MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
3597
3598void
3599_may_delete (SV *sem, int count, int extra_refs)
3600 PPCODE:
3601{
3602 AV *av = (AV *)SvRV (sem);
3603
3604 if (SvREFCNT ((SV *)av) == 1 + extra_refs
3605 && AvFILLp (av) == 0 /* no waiters, just count */
3606 && SvIV (AvARRAY (av)[0]) == count)
3607 XSRETURN_YES;
3608
3609 XSRETURN_NO;
3610}
3611
3612MODULE = Coro::State PACKAGE = Coro::Signal
3613
3614SV *
3615new (SV *klass)
3616 CODE:
3617 RETVAL = sv_bless (
3618 coro_waitarray_new (aTHX_ 0),
3619 GvSTASH (CvGV (cv))
3620 );
3621 OUTPUT:
3622 RETVAL
3623
3624void
3625wait (...)
3626 CODE:
3627 CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
3628
3629void
3630broadcast (SV *self)
3631 CODE:
3632{
3633 AV *av = (AV *)SvRV (self);
3634 coro_signal_wake (aTHX_ av, AvFILLp (av));
3635}
3636
3637void
3638send (SV *self)
3639 CODE:
3640{
3641 AV *av = (AV *)SvRV (self);
3642
3643 if (AvFILLp (av))
3644 coro_signal_wake (aTHX_ av, 1);
3645 else
3646 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3647}
3648
3649IV
3650awaited (SV *self)
3651 CODE:
3652 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3653 OUTPUT:
3654 RETVAL
2850 3655
2851 3656
2852MODULE = Coro::State PACKAGE = Coro::AnyEvent 3657MODULE = Coro::State PACKAGE = Coro::AnyEvent
2853 3658
2854BOOT: 3659BOOT:
… …
2882 3687
2883void 3688void
2884_register (char *target, char *proto, SV *req) 3689_register (char *target, char *proto, SV *req)
2885 CODE: 3690 CODE:
2886{ 3691{
2887 HV *st; 3692 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 */ 3693 /* newXSproto doesn't return the CV on 5.8 */
2891 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 3694 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
2892 sv_setpv ((SV *)slf_cv, proto); 3695 sv_setpv ((SV *)slf_cv, proto);
2893 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 3696 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
2894} 3697}

Diff Legend

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