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Comparing Coro/Coro/State.xs (file contents):
Revision 1.288 by root, Mon Nov 17 07:14:50 2008 UTC vs.
Revision 1.331 by root, Thu Nov 27 12:00:59 2008 UTC

… …
16 16
17#ifdef WIN32 17#ifdef WIN32
18# undef setjmp 18# undef setjmp
19# undef longjmp 19# undef longjmp
20# undef _exit 20# undef _exit
21# define setjmp _setjmp // deep magic, don't ask 21# define setjmp _setjmp /* deep magic */
22#else 22#else
23# include <inttypes.h> /* most portable stdint.h */ 23# include <inttypes.h> /* most portable stdint.h */
24#endif 24#endif
25 25
26#ifdef HAVE_MMAP 26#ifdef HAVE_MMAP
… …
55 55
56#define PERL_VERSION_ATLEAST(a,b,c) \ 56#define PERL_VERSION_ATLEAST(a,b,c) \
57 (PERL_REVISION > (a) \ 57 (PERL_REVISION > (a) \
58 || (PERL_REVISION == (a) \ 58 || (PERL_REVISION == (a) \
59 && (PERL_VERSION > (b) \ 59 && (PERL_VERSION > (b) \
60 || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) 60 || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61 61
62#if !PERL_VERSION_ATLEAST (5,6,0) 62#if !PERL_VERSION_ATLEAST (5,6,0)
63# ifndef PL_ppaddr 63# ifndef PL_ppaddr
64# define PL_ppaddr ppaddr 64# define PL_ppaddr ppaddr
65# endif 65# endif
… …
98# define newSV(l) NEWSV(0,l) 98# define newSV(l) NEWSV(0,l)
99#endif 99#endif
100#ifndef CvISXSUB_on 100#ifndef CvISXSUB_on
101# define CvISXSUB_on(cv) (void)cv 101# define CvISXSUB_on(cv) (void)cv
102#endif 102#endif
103#ifndef CvISXSUB
104# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105#endif
106#ifndef Newx
107# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
108#endif
103 109
104/* 5.8.7 */ 110/* 5.8.7 */
105#ifndef SvRV_set 111#ifndef SvRV_set
106# define SvRV_set(s,v) SvRV(s) = (v) 112# define SvRV_set(s,v) SvRV(s) = (v)
107#endif 113#endif
… …
120#endif 126#endif
121 127
122/* The next macros try to return the current stack pointer, in an as 128/* The next macros try to return the current stack pointer, in an as
123 * portable way as possible. */ 129 * portable way as possible. */
124#if __GNUC__ >= 4 130#if __GNUC__ >= 4
131# define dSTACKLEVEL int stacklevel_dummy
125# define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0) 132# define STACKLEVEL __builtin_frame_address (0)
126#else 133#else
127# define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel 134# define dSTACKLEVEL volatile void *stacklevel
135# define STACKLEVEL ((void *)&stacklevel)
128#endif 136#endif
129 137
130#define IN_DESTRUCT (PL_main_cv == Nullcv) 138#define IN_DESTRUCT PL_dirty
131 139
132#if __GNUC__ >= 3 140#if __GNUC__ >= 3
133# define attribute(x) __attribute__(x) 141# define attribute(x) __attribute__(x)
134# define expect(expr,value) __builtin_expect ((expr),(value)) 142# define expect(expr,value) __builtin_expect ((expr),(value))
135# define INLINE static inline 143# define INLINE static inline
… …
143#define expect_true(expr) expect ((expr) != 0, 1) 151#define expect_true(expr) expect ((expr) != 0, 1)
144 152
145#define NOINLINE attribute ((noinline)) 153#define NOINLINE attribute ((noinline))
146 154
147#include "CoroAPI.h" 155#include "CoroAPI.h"
156#define GCoroAPI (&coroapi) /* very sneaky */
148 157
149#ifdef USE_ITHREADS 158#ifdef USE_ITHREADS
150# if CORO_PTHREAD 159# if CORO_PTHREAD
151static void *coro_thx; 160static void *coro_thx;
152# endif 161# endif
153#endif 162#endif
154 163
155static double (*nvtime)(); /* so why doesn't it take void? */ 164static double (*nvtime)(); /* so why doesn't it take void? */
165
166/* we hijack an hopefully unused CV flag for our purposes */
167#define CVf_SLF 0x4000
168static OP *pp_slf (pTHX);
156 169
157static U32 cctx_gen; 170static U32 cctx_gen;
158static size_t cctx_stacksize = CORO_STACKSIZE; 171static size_t cctx_stacksize = CORO_STACKSIZE;
159static struct CoroAPI coroapi; 172static struct CoroAPI coroapi;
160static AV *main_mainstack; /* used to differentiate between $main and others */ 173static AV *main_mainstack; /* used to differentiate between $main and others */
161static JMPENV *main_top_env; 174static JMPENV *main_top_env;
162static HV *coro_state_stash, *coro_stash; 175static HV *coro_state_stash, *coro_stash;
163static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 176static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
164 177
178static AV *av_destroy; /* destruction queue */
179static SV *sv_manager; /* the manager coro */
180static SV *sv_idle; /* $Coro::idle */
181
165static GV *irsgv; /* $/ */ 182static GV *irsgv; /* $/ */
166static GV *stdoutgv; /* *STDOUT */ 183static GV *stdoutgv; /* *STDOUT */
167static SV *rv_diehook; 184static SV *rv_diehook;
168static SV *rv_warnhook; 185static SV *rv_warnhook;
169static HV *hv_sig; /* %SIG */ 186static HV *hv_sig; /* %SIG */
170 187
171/* async_pool helper stuff */ 188/* async_pool helper stuff */
172static SV *sv_pool_rss; 189static SV *sv_pool_rss;
173static SV *sv_pool_size; 190static SV *sv_pool_size;
191static SV *sv_async_pool_idle; /* description string */
174static AV *av_async_pool; 192static AV *av_async_pool; /* idle pool */
193static SV *sv_Coro; /* class string */
194static CV *cv_pool_handler;
195static CV *cv_coro_state_new;
175 196
176/* Coro::AnyEvent */ 197/* Coro::AnyEvent */
177static SV *sv_activity; 198static SV *sv_activity;
178 199
179static struct coro_cctx *cctx_first; 200static struct coro_cctx *cctx_first;
… …
208 int valgrind_id; 229 int valgrind_id;
209#endif 230#endif
210 unsigned char flags; 231 unsigned char flags;
211} coro_cctx; 232} coro_cctx;
212 233
234coro_cctx *cctx_current; /* the currently running cctx */
235
236/*****************************************************************************/
237
213enum { 238enum {
214 CF_RUNNING = 0x0001, /* coroutine is running */ 239 CF_RUNNING = 0x0001, /* coroutine is running */
215 CF_READY = 0x0002, /* coroutine is ready */ 240 CF_READY = 0x0002, /* coroutine is ready */
216 CF_NEW = 0x0004, /* has never been switched to */ 241 CF_NEW = 0x0004, /* has never been switched to */
217 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 242 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
… …
222{ 247{
223 SV *defsv; 248 SV *defsv;
224 AV *defav; 249 AV *defav;
225 SV *errsv; 250 SV *errsv;
226 SV *irsgv; 251 SV *irsgv;
252 HV *hinthv;
227#define VAR(name,type) type name; 253#define VAR(name,type) type name;
228# include "state.h" 254# include "state.h"
229#undef VAR 255#undef VAR
230} perl_slots; 256} perl_slots;
231 257
… …
239 /* state data */ 265 /* state data */
240 struct CoroSLF slf_frame; /* saved slf frame */ 266 struct CoroSLF slf_frame; /* saved slf frame */
241 AV *mainstack; 267 AV *mainstack;
242 perl_slots *slot; /* basically the saved sp */ 268 perl_slots *slot; /* basically the saved sp */
243 269
270 CV *startcv; /* the CV to execute */
244 AV *args; /* data associated with this coroutine (initial args) */ 271 AV *args; /* data associated with this coroutine (initial args) */
245 int refcnt; /* coroutines are refcounted, yes */ 272 int refcnt; /* coroutines are refcounted, yes */
246 int flags; /* CF_ flags */ 273 int flags; /* CF_ flags */
247 HV *hv; /* the perl hash associated with this coro, if any */ 274 HV *hv; /* the perl hash associated with this coro, if any */
248 void (*on_destroy)(pTHX_ struct coro *coro); 275 void (*on_destroy)(pTHX_ struct coro *coro);
249 276
250 /* statistics */ 277 /* statistics */
251 int usecount; /* number of transfers to this coro */ 278 int usecount; /* number of transfers to this coro */
252 279
253 /* coro process data */ 280 /* coro process data */
254 int prio; 281 int prio;
255 SV *throw; /* exception to be thrown */ 282 SV *except; /* exception to be thrown */
283 SV *rouse_cb;
256 284
257 /* async_pool */ 285 /* async_pool */
258 SV *saved_deffh; 286 SV *saved_deffh;
287 SV *invoke_cb;
288 AV *invoke_av;
259 289
260 /* linked list */ 290 /* linked list */
261 struct coro *next, *prev; 291 struct coro *next, *prev;
262}; 292};
263 293
… …
266 296
267/* the following variables are effectively part of the perl context */ 297/* the following variables are effectively part of the perl context */
268/* and get copied between struct coro and these variables */ 298/* and get copied between struct coro and these variables */
269/* the mainr easonw e don't support windows process emulation */ 299/* the mainr easonw e don't support windows process emulation */
270static struct CoroSLF slf_frame; /* the current slf frame */ 300static struct CoroSLF slf_frame; /* the current slf frame */
271static SV *coro_throw;
272 301
273/** Coro ********************************************************************/ 302/** Coro ********************************************************************/
274 303
275#define PRIO_MAX 3 304#define PRIO_MAX 3
276#define PRIO_HIGH 1 305#define PRIO_HIGH 1
… …
281 310
282/* for Coro.pm */ 311/* for Coro.pm */
283static SV *coro_current; 312static SV *coro_current;
284static SV *coro_readyhook; 313static SV *coro_readyhook;
285static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 314static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
315static CV *cv_coro_run, *cv_coro_terminate;
286static struct coro *coro_first; 316static struct coro *coro_first;
287#define coro_nready coroapi.nready 317#define coro_nready coroapi.nready
288 318
289/** lowlevel stuff **********************************************************/ 319/** lowlevel stuff **********************************************************/
290 320
… …
316 get_hv (name, create); 346 get_hv (name, create);
317#endif 347#endif
318 return get_hv (name, create); 348 return get_hv (name, create);
319} 349}
320 350
351/* may croak */
352INLINE CV *
353coro_sv_2cv (pTHX_ SV *sv)
354{
355 HV *st;
356 GV *gvp;
357 return sv_2cv (sv, &st, &gvp, 0);
358}
359
321static AV * 360static AV *
322coro_clone_padlist (pTHX_ CV *cv) 361coro_derive_padlist (pTHX_ CV *cv)
323{ 362{
324 AV *padlist = CvPADLIST (cv); 363 AV *padlist = CvPADLIST (cv);
325 AV *newpadlist, *newpad; 364 AV *newpadlist, *newpad;
326 365
327 newpadlist = newAV (); 366 newpadlist = newAV ();
… …
342 381
343static void 382static void
344free_padlist (pTHX_ AV *padlist) 383free_padlist (pTHX_ AV *padlist)
345{ 384{
346 /* may be during global destruction */ 385 /* may be during global destruction */
347 if (SvREFCNT (padlist)) 386 if (!IN_DESTRUCT)
348 { 387 {
349 I32 i = AvFILLp (padlist); 388 I32 i = AvFILLp (padlist);
389
350 while (i >= 0) 390 while (i >= 0)
351 { 391 {
352 SV **svp = av_fetch (padlist, i--, FALSE); 392 /* we try to be extra-careful here */
353 if (svp) 393 AV *av = (AV *)AvARRAY (padlist)[i--];
354 { 394
355 SV *sv; 395 I32 i = AvFILLp (av);
356 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) 396
397 while (i >= 0)
398 SvREFCNT_dec (AvARRAY (av)[i--]);
399
400 AvFILLp (av) = -1;
357 SvREFCNT_dec (sv); 401 SvREFCNT_dec (av);
358
359 SvREFCNT_dec (*svp);
360 }
361 } 402 }
362 403
404 AvFILLp (padlist) = -1;
363 SvREFCNT_dec ((SV*)padlist); 405 SvREFCNT_dec ((SV*)padlist);
364 } 406 }
365} 407}
366 408
367static int 409static int
… …
442 else 484 else
443 { 485 {
444#if CORO_PREFER_PERL_FUNCTIONS 486#if CORO_PREFER_PERL_FUNCTIONS
445 /* this is probably cleaner? but also slower! */ 487 /* this is probably cleaner? but also slower! */
446 /* in practise, it seems to be less stable */ 488 /* in practise, it seems to be less stable */
447 CV *cp = Perl_cv_clone (cv); 489 CV *cp = Perl_cv_clone (aTHX_ cv);
448 CvPADLIST (cv) = CvPADLIST (cp); 490 CvPADLIST (cv) = CvPADLIST (cp);
449 CvPADLIST (cp) = 0; 491 CvPADLIST (cp) = 0;
450 SvREFCNT_dec (cp); 492 SvREFCNT_dec (cp);
451#else 493#else
452 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 494 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
453#endif 495#endif
454 } 496 }
455} 497}
456 498
457static void 499static void
… …
464 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 506 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
465 507
466 av = (AV *)mg->mg_obj; 508 av = (AV *)mg->mg_obj;
467 509
468 if (expect_false (AvFILLp (av) >= AvMAX (av))) 510 if (expect_false (AvFILLp (av) >= AvMAX (av)))
469 av_extend (av, AvMAX (av) + 1); 511 av_extend (av, AvFILLp (av) + 1);
470 512
471 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 513 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
472} 514}
473 515
474/** load & save, init *******************************************************/ 516/** load & save, init *******************************************************/
… …
479 perl_slots *slot = c->slot; 521 perl_slots *slot = c->slot;
480 c->slot = 0; 522 c->slot = 0;
481 523
482 PL_mainstack = c->mainstack; 524 PL_mainstack = c->mainstack;
483 525
484 GvSV (PL_defgv) = slot->defsv; 526 GvSV (PL_defgv) = slot->defsv;
485 GvAV (PL_defgv) = slot->defav; 527 GvAV (PL_defgv) = slot->defav;
486 GvSV (PL_errgv) = slot->errsv; 528 GvSV (PL_errgv) = slot->errsv;
487 GvSV (irsgv) = slot->irsgv; 529 GvSV (irsgv) = slot->irsgv;
530 GvHV (PL_hintgv) = slot->hinthv;
488 531
489 #define VAR(name,type) PL_ ## name = slot->name; 532 #define VAR(name,type) PL_ ## name = slot->name;
490 # include "state.h" 533 # include "state.h"
491 #undef VAR 534 #undef VAR
492 535
… …
505 548
506 PUTBACK; 549 PUTBACK;
507 } 550 }
508 551
509 slf_frame = c->slf_frame; 552 slf_frame = c->slf_frame;
510 coro_throw = c->throw; 553 CORO_THROW = c->except;
511} 554}
512 555
513static void 556static void
514save_perl (pTHX_ Coro__State c) 557save_perl (pTHX_ Coro__State c)
515{ 558{
516 c->throw = coro_throw; 559 c->except = CORO_THROW;
517 c->slf_frame = slf_frame; 560 c->slf_frame = slf_frame;
518 561
519 { 562 {
520 dSP; 563 dSP;
521 I32 cxix = cxstack_ix; 564 I32 cxix = cxstack_ix;
… …
578 c->mainstack = PL_mainstack; 621 c->mainstack = PL_mainstack;
579 622
580 { 623 {
581 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 624 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
582 625
583 slot->defav = GvAV (PL_defgv); 626 slot->defav = GvAV (PL_defgv);
584 slot->defsv = DEFSV; 627 slot->defsv = DEFSV;
585 slot->errsv = ERRSV; 628 slot->errsv = ERRSV;
586 slot->irsgv = GvSV (irsgv); 629 slot->irsgv = GvSV (irsgv);
630 slot->hinthv = GvHV (PL_hintgv);
587 631
588 #define VAR(name,type) slot->name = PL_ ## name; 632 #define VAR(name,type) slot->name = PL_ ## name;
589 # include "state.h" 633 # include "state.h"
590 #undef VAR 634 #undef VAR
591 } 635 }
… …
596 * of perl.c:init_stacks, except that it uses less memory 640 * of perl.c:init_stacks, except that it uses less memory
597 * on the (sometimes correct) assumption that coroutines do 641 * on the (sometimes correct) assumption that coroutines do
598 * not usually need a lot of stackspace. 642 * not usually need a lot of stackspace.
599 */ 643 */
600#if CORO_PREFER_PERL_FUNCTIONS 644#if CORO_PREFER_PERL_FUNCTIONS
601# define coro_init_stacks init_stacks 645# define coro_init_stacks(thx) init_stacks ()
602#else 646#else
603static void 647static void
604coro_init_stacks (pTHX) 648coro_init_stacks (pTHX)
605{ 649{
606 PL_curstackinfo = new_stackinfo(32, 8); 650 PL_curstackinfo = new_stackinfo(32, 8);
… …
669#if !PERL_VERSION_ATLEAST (5,10,0) 713#if !PERL_VERSION_ATLEAST (5,10,0)
670 Safefree (PL_retstack); 714 Safefree (PL_retstack);
671#endif 715#endif
672} 716}
673 717
718#define CORO_RSS \
719 rss += sizeof (SYM (curstackinfo)); \
720 rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
721 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
722 rss += SYM (tmps_max) * sizeof (SV *); \
723 rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
724 rss += SYM (scopestack_max) * sizeof (I32); \
725 rss += SYM (savestack_max) * sizeof (ANY);
726
674static size_t 727static size_t
675coro_rss (pTHX_ struct coro *coro) 728coro_rss (pTHX_ struct coro *coro)
676{ 729{
677 size_t rss = sizeof (*coro); 730 size_t rss = sizeof (*coro);
678 731
679 if (coro->mainstack) 732 if (coro->mainstack)
680 { 733 {
681 perl_slots tmp_slot;
682 perl_slots *slot;
683
684 if (coro->flags & CF_RUNNING) 734 if (coro->flags & CF_RUNNING)
685 { 735 {
686 slot = &tmp_slot; 736 #define SYM(sym) PL_ ## sym
687 737 CORO_RSS;
688 #define VAR(name,type) slot->name = PL_ ## name;
689 # include "state.h"
690 #undef VAR 738 #undef SYM
691 } 739 }
692 else 740 else
693 slot = coro->slot;
694
695 if (slot)
696 { 741 {
697 rss += sizeof (slot->curstackinfo); 742 #define SYM(sym) coro->slot->sym
698 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); 743 CORO_RSS;
699 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); 744 #undef SYM
700 rss += slot->tmps_max * sizeof (SV *);
701 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
702 rss += slot->scopestack_max * sizeof (I32);
703 rss += slot->savestack_max * sizeof (ANY);
704
705#if !PERL_VERSION_ATLEAST (5,10,0)
706 rss += slot->retstack_max * sizeof (OP *);
707#endif
708 } 745 }
709 } 746 }
710 747
711 return rss; 748 return rss;
712} 749}
… …
814slf_check_nop (pTHX_ struct CoroSLF *frame) 851slf_check_nop (pTHX_ struct CoroSLF *frame)
815{ 852{
816 return 0; 853 return 0;
817} 854}
818 855
856static int
857slf_check_repeat (pTHX_ struct CoroSLF *frame)
858{
859 return 1;
860}
861
862static UNOP coro_setup_op;
863
819static void NOINLINE /* noinline to keep it out of the transfer fast path */ 864static void NOINLINE /* noinline to keep it out of the transfer fast path */
820coro_setup (pTHX_ struct coro *coro) 865coro_setup (pTHX_ struct coro *coro)
821{ 866{
822 /* 867 /*
823 * emulate part of the perl startup here. 868 * emulate part of the perl startup here.
… …
826 871
827 PL_runops = RUNOPS_DEFAULT; 872 PL_runops = RUNOPS_DEFAULT;
828 PL_curcop = &PL_compiling; 873 PL_curcop = &PL_compiling;
829 PL_in_eval = EVAL_NULL; 874 PL_in_eval = EVAL_NULL;
830 PL_comppad = 0; 875 PL_comppad = 0;
876 PL_comppad_name = 0;
877 PL_comppad_name_fill = 0;
878 PL_comppad_name_floor = 0;
831 PL_curpm = 0; 879 PL_curpm = 0;
832 PL_curpad = 0; 880 PL_curpad = 0;
833 PL_localizing = 0; 881 PL_localizing = 0;
834 PL_dirty = 0; 882 PL_dirty = 0;
835 PL_restartop = 0; 883 PL_restartop = 0;
836#if PERL_VERSION_ATLEAST (5,10,0) 884#if PERL_VERSION_ATLEAST (5,10,0)
837 PL_parser = 0; 885 PL_parser = 0;
838#endif 886#endif
887 PL_hints = 0;
839 888
840 /* recreate the die/warn hooks */ 889 /* recreate the die/warn hooks */
841 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 890 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
842 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 891 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
843 892
844 GvSV (PL_defgv) = newSV (0); 893 GvSV (PL_defgv) = newSV (0);
845 GvAV (PL_defgv) = coro->args; coro->args = 0; 894 GvAV (PL_defgv) = coro->args; coro->args = 0;
846 GvSV (PL_errgv) = newSV (0); 895 GvSV (PL_errgv) = newSV (0);
847 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 896 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
897 GvHV (PL_hintgv) = 0;
848 PL_rs = newSVsv (GvSV (irsgv)); 898 PL_rs = newSVsv (GvSV (irsgv));
849 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 899 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
850 900
851 { 901 {
852 dSP; 902 dSP;
853 UNOP myop; 903 UNOP myop;
854 904
855 Zero (&myop, 1, UNOP); 905 Zero (&myop, 1, UNOP);
856 myop.op_next = Nullop; 906 myop.op_next = Nullop;
907 myop.op_type = OP_ENTERSUB;
857 myop.op_flags = OPf_WANT_VOID; 908 myop.op_flags = OPf_WANT_VOID;
858 909
859 PUSHMARK (SP); 910 PUSHMARK (SP);
860 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); 911 PUSHs ((SV *)coro->startcv);
861 PUTBACK; 912 PUTBACK;
862 PL_op = (OP *)&myop; 913 PL_op = (OP *)&myop;
863 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 914 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
864 SPAGAIN;
865 } 915 }
866 916
867 /* this newly created coroutine might be run on an existing cctx which most 917 /* this newly created coroutine might be run on an existing cctx which most
868 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 918 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
869 */ 919 */
870 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 920 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
871 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 921 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
872 922
873 coro_throw = coro->throw; 923 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
924 coro_setup_op.op_next = PL_op;
925 coro_setup_op.op_type = OP_ENTERSUB;
926 coro_setup_op.op_ppaddr = pp_slf;
927 /* no flags etc. required, as an init function won't be called */
928
929 PL_op = (OP *)&coro_setup_op;
930
931 /* copy throw, in case it was set before coro_setup */
932 CORO_THROW = coro->except;
874} 933}
875 934
876static void 935static void
877coro_destruct (pTHX_ struct coro *coro) 936coro_destruct (pTHX_ struct coro *coro)
878{ 937{
… …
897 SvREFCNT_dec (GvAV (PL_defgv)); 956 SvREFCNT_dec (GvAV (PL_defgv));
898 SvREFCNT_dec (GvSV (PL_errgv)); 957 SvREFCNT_dec (GvSV (PL_errgv));
899 SvREFCNT_dec (PL_defoutgv); 958 SvREFCNT_dec (PL_defoutgv);
900 SvREFCNT_dec (PL_rs); 959 SvREFCNT_dec (PL_rs);
901 SvREFCNT_dec (GvSV (irsgv)); 960 SvREFCNT_dec (GvSV (irsgv));
961 SvREFCNT_dec (GvHV (PL_hintgv));
902 962
903 SvREFCNT_dec (PL_diehook); 963 SvREFCNT_dec (PL_diehook);
904 SvREFCNT_dec (PL_warnhook); 964 SvREFCNT_dec (PL_warnhook);
905 965
906 SvREFCNT_dec (coro->saved_deffh); 966 SvREFCNT_dec (coro->saved_deffh);
907 SvREFCNT_dec (coro_throw); 967 SvREFCNT_dec (coro->rouse_cb);
968 SvREFCNT_dec (coro->invoke_cb);
969 SvREFCNT_dec (coro->invoke_av);
908 970
909 coro_destruct_stacks (aTHX); 971 coro_destruct_stacks (aTHX);
910} 972}
911 973
912INLINE void 974INLINE void
… …
922static int 984static int
923runops_trace (pTHX) 985runops_trace (pTHX)
924{ 986{
925 COP *oldcop = 0; 987 COP *oldcop = 0;
926 int oldcxix = -2; 988 int oldcxix = -2;
927 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
928 coro_cctx *cctx = coro->cctx;
929 989
930 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 990 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
931 { 991 {
932 PERL_ASYNC_CHECK (); 992 PERL_ASYNC_CHECK ();
933 993
934 if (cctx->flags & CC_TRACE_ALL) 994 if (cctx_current->flags & CC_TRACE_ALL)
935 { 995 {
936 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) 996 if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
937 { 997 {
938 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 998 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
939 SV **bot, **top; 999 SV **bot, **top;
940 AV *av = newAV (); /* return values */ 1000 AV *av = newAV (); /* return values */
941 SV **cb; 1001 SV **cb;
… …
978 1038
979 if (PL_curcop != &PL_compiling) 1039 if (PL_curcop != &PL_compiling)
980 { 1040 {
981 SV **cb; 1041 SV **cb;
982 1042
983 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 1043 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
984 { 1044 {
985 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1045 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
986 1046
987 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1047 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
988 { 1048 {
989 runops_proc_t old_runops = PL_runops;
990 dSP; 1049 dSP;
991 GV *gv = CvGV (cx->blk_sub.cv); 1050 GV *gv = CvGV (cx->blk_sub.cv);
992 SV *fullname = sv_2mortal (newSV (0)); 1051 SV *fullname = sv_2mortal (newSV (0));
993 1052
994 if (isGV (gv)) 1053 if (isGV (gv))
… …
999 SAVETMPS; 1058 SAVETMPS;
1000 EXTEND (SP, 3); 1059 EXTEND (SP, 3);
1001 PUSHMARK (SP); 1060 PUSHMARK (SP);
1002 PUSHs (&PL_sv_yes); 1061 PUSHs (&PL_sv_yes);
1003 PUSHs (fullname); 1062 PUSHs (fullname);
1004 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); 1063 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1005 PUTBACK; 1064 PUTBACK;
1006 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); 1065 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
1007 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1066 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1008 SPAGAIN; 1067 SPAGAIN;
1009 FREETMPS; 1068 FREETMPS;
… …
1012 } 1071 }
1013 1072
1014 oldcxix = cxstack_ix; 1073 oldcxix = cxstack_ix;
1015 } 1074 }
1016 1075
1017 if (cctx->flags & CC_TRACE_LINE) 1076 if (cctx_current->flags & CC_TRACE_LINE)
1018 { 1077 {
1019 dSP; 1078 dSP;
1020 1079
1021 PL_runops = RUNOPS_DEFAULT; 1080 PL_runops = RUNOPS_DEFAULT;
1022 ENTER; 1081 ENTER;
… …
1041 1100
1042 TAINT_NOT; 1101 TAINT_NOT;
1043 return 0; 1102 return 0;
1044} 1103}
1045 1104
1105static struct CoroSLF cctx_ssl_frame;
1106
1046static void 1107static void
1047prepare_set_stacklevel (struct coro_transfer_args *ta, struct coro_cctx *cctx) 1108slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1048{ 1109{
1049 ta->prev = (struct coro *)cctx;
1050 ta->next = 0; 1110 ta->prev = 0;
1051} 1111}
1052 1112
1053/* inject a fake call to Coro::State::_cctx_init into the execution */ 1113static int
1054/* _cctx_init should be careful, as it could be called at almost any time */ 1114slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1055/* during execution of a perl program */ 1115{
1056/* also initialises PL_top_env */ 1116 *frame = cctx_ssl_frame;
1117
1118 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1119}
1120
1121/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1057static void NOINLINE 1122static void NOINLINE
1058cctx_prepare (pTHX_ coro_cctx *cctx) 1123cctx_prepare (pTHX)
1059{ 1124{
1060 dSP;
1061 UNOP myop;
1062
1063 PL_top_env = &PL_start_env; 1125 PL_top_env = &PL_start_env;
1064 1126
1065 if (cctx->flags & CC_TRACE) 1127 if (cctx_current->flags & CC_TRACE)
1066 PL_runops = runops_trace; 1128 PL_runops = runops_trace;
1067 1129
1068 Zero (&myop, 1, UNOP); 1130 /* we already must be executing an SLF op, there is no other valid way
1069 myop.op_next = PL_op; 1131 * that can lead to creation of a new cctx */
1070 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 1132 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1133 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1071 1134
1072 PUSHMARK (SP); 1135 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1073 EXTEND (SP, 2); 1136 cctx_ssl_frame = slf_frame;
1074 PUSHs (sv_2mortal (newSViv ((IV)cctx))); 1137
1075 PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); 1138 slf_frame.prepare = slf_prepare_set_stacklevel;
1076 PUTBACK; 1139 slf_frame.check = slf_check_set_stacklevel;
1077 PL_op = (OP *)&myop;
1078 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
1079 SPAGAIN;
1080} 1140}
1081 1141
1082/* the tail of transfer: execute stuff we can only do after a transfer */ 1142/* the tail of transfer: execute stuff we can only do after a transfer */
1083INLINE void 1143INLINE void
1084transfer_tail (pTHX) 1144transfer_tail (pTHX)
… …
1103 /* normally we would need to skip the entersub here */ 1163 /* normally we would need to skip the entersub here */
1104 /* not doing so will re-execute it, which is exactly what we want */ 1164 /* not doing so will re-execute it, which is exactly what we want */
1105 /* PL_nop = PL_nop->op_next */ 1165 /* PL_nop = PL_nop->op_next */
1106 1166
1107 /* inject a fake subroutine call to cctx_init */ 1167 /* inject a fake subroutine call to cctx_init */
1108 cctx_prepare (aTHX_ (coro_cctx *)arg); 1168 cctx_prepare (aTHX);
1109 1169
1110 /* cctx_run is the alternative tail of transfer() */ 1170 /* cctx_run is the alternative tail of transfer() */
1111 transfer_tail (aTHX); 1171 transfer_tail (aTHX);
1112 1172
1113 /* somebody or something will hit me for both perl_run and PL_restartop */ 1173 /* somebody or something will hit me for both perl_run and PL_restartop */
1114 PL_restartop = PL_op; 1174 PL_restartop = PL_op;
1115 perl_run (PL_curinterp); 1175 perl_run (PL_curinterp);
1176 /*
1177 * Unfortunately, there is no way to get at the return values of the
1178 * coro body here, as perl_run destroys these
1179 */
1116 1180
1117 /* 1181 /*
1118 * If perl-run returns we assume exit() was being called or the coro 1182 * If perl-run returns we assume exit() was being called or the coro
1119 * fell off the end, which seems to be the only valid (non-bug) 1183 * fell off the end, which seems to be the only valid (non-bug)
1120 * reason for perl_run to return. We try to exit by jumping to the 1184 * reason for perl_run to return. We try to exit by jumping to the
1121 * bootstrap-time "top" top_env, as we cannot restore the "main" 1185 * bootstrap-time "top" top_env, as we cannot restore the "main"
1122 * coroutine as Coro has no such concept 1186 * coroutine as Coro has no such concept.
1187 * This actually isn't valid with the pthread backend, but OSes requiring
1188 * that backend are too broken to do it in a standards-compliant way.
1123 */ 1189 */
1124 PL_top_env = main_top_env; 1190 PL_top_env = main_top_env;
1125 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 1191 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1126 } 1192 }
1127} 1193}
… …
1204cctx_destroy (coro_cctx *cctx) 1270cctx_destroy (coro_cctx *cctx)
1205{ 1271{
1206 if (!cctx) 1272 if (!cctx)
1207 return; 1273 return;
1208 1274
1275 assert (cctx != cctx_current);//D temporary
1276
1209 --cctx_count; 1277 --cctx_count;
1210 coro_destroy (&cctx->cctx); 1278 coro_destroy (&cctx->cctx);
1211 1279
1212 /* coro_transfer creates new, empty cctx's */ 1280 /* coro_transfer creates new, empty cctx's */
1213 if (cctx->sptr) 1281 if (cctx->sptr)
… …
1276 /* TODO: throwing up here is considered harmful */ 1344 /* TODO: throwing up here is considered harmful */
1277 1345
1278 if (expect_true (prev != next)) 1346 if (expect_true (prev != next))
1279 { 1347 {
1280 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1348 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1281 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); 1349 croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,");
1282 1350
1283 if (expect_false (next->flags & CF_RUNNING)) 1351 if (expect_false (next->flags & CF_RUNNING))
1284 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); 1352 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1285 1353
1286 if (expect_false (next->flags & CF_DESTROYED)) 1354 if (expect_false (next->flags & CF_DESTROYED))
… …
1298transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1366transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1299{ 1367{
1300 dSTACKLEVEL; 1368 dSTACKLEVEL;
1301 1369
1302 /* sometimes transfer is only called to set idle_sp */ 1370 /* sometimes transfer is only called to set idle_sp */
1303 if (expect_false (!next)) 1371 if (expect_false (!prev))
1304 { 1372 {
1305 ((coro_cctx *)prev)->idle_sp = (void *)stacklevel; 1373 cctx_current->idle_sp = STACKLEVEL;
1306 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1374 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1307 } 1375 }
1308 else if (expect_true (prev != next)) 1376 else if (expect_true (prev != next))
1309 { 1377 {
1310 coro_cctx *prev__cctx; 1378 coro_cctx *cctx_prev;
1311 1379
1312 if (expect_false (prev->flags & CF_NEW)) 1380 if (expect_false (prev->flags & CF_NEW))
1313 { 1381 {
1314 /* create a new empty/source context */ 1382 /* create a new empty/source context */
1315 prev->cctx = cctx_new_empty ();
1316 prev->flags &= ~CF_NEW; 1383 prev->flags &= ~CF_NEW;
1317 prev->flags |= CF_RUNNING; 1384 prev->flags |= CF_RUNNING;
1318 } 1385 }
1319 1386
1320 prev->flags &= ~CF_RUNNING; 1387 prev->flags &= ~CF_RUNNING;
… …
1331 coro_setup (aTHX_ next); 1398 coro_setup (aTHX_ next);
1332 } 1399 }
1333 else 1400 else
1334 load_perl (aTHX_ next); 1401 load_perl (aTHX_ next);
1335 1402
1336 prev__cctx = prev->cctx; 1403 assert (!prev->cctx);//D temporary
1337 1404
1338 /* possibly untie and reuse the cctx */ 1405 /* possibly untie and reuse the cctx */
1339 if (expect_true ( 1406 if (expect_true (
1340 prev__cctx->idle_sp == (void *)stacklevel 1407 cctx_current->idle_sp == STACKLEVEL
1341 && !(prev__cctx->flags & CC_TRACE) 1408 && !(cctx_current->flags & CC_TRACE)
1342 && !force_cctx 1409 && !force_cctx
1343 )) 1410 ))
1344 { 1411 {
1345 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1412 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1346 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); 1413 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1347 1414
1348 prev->cctx = 0;
1349
1350 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1415 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1351 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1416 /* without this the next cctx_get might destroy the running cctx while still in use */
1352 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1417 if (expect_false (CCTX_EXPIRED (cctx_current)))
1353 if (!next->cctx) 1418 if (expect_true (!next->cctx))
1354 next->cctx = cctx_get (aTHX); 1419 next->cctx = cctx_get (aTHX);
1355 1420
1356 cctx_put (prev__cctx); 1421 cctx_put (cctx_current);
1357 } 1422 }
1423 else
1424 prev->cctx = cctx_current;
1358 1425
1359 ++next->usecount; 1426 ++next->usecount;
1360 1427
1361 if (expect_true (!next->cctx)) 1428 cctx_prev = cctx_current;
1362 next->cctx = cctx_get (aTHX); 1429 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1363 1430
1364 if (expect_false (prev__cctx != next->cctx)) 1431 next->cctx = 0;
1432
1433 if (expect_false (cctx_prev != cctx_current))
1365 { 1434 {
1366 prev__cctx->top_env = PL_top_env; 1435 cctx_prev->top_env = PL_top_env;
1367 PL_top_env = next->cctx->top_env; 1436 PL_top_env = cctx_current->top_env;
1368 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1437 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1369 } 1438 }
1370 1439
1371 transfer_tail (aTHX); 1440 transfer_tail (aTHX);
1372 } 1441 }
1373} 1442}
… …
1412 1481
1413 coro->slot = 0; 1482 coro->slot = 0;
1414 } 1483 }
1415 1484
1416 cctx_destroy (coro->cctx); 1485 cctx_destroy (coro->cctx);
1486 SvREFCNT_dec (coro->startcv);
1417 SvREFCNT_dec (coro->args); 1487 SvREFCNT_dec (coro->args);
1488 SvREFCNT_dec (CORO_THROW);
1418 1489
1419 if (coro->next) coro->next->prev = coro->prev; 1490 if (coro->next) coro->next->prev = coro->prev;
1420 if (coro->prev) coro->prev->next = coro->next; 1491 if (coro->prev) coro->prev->next = coro->next;
1421 if (coro == coro_first) coro_first = coro->next; 1492 if (coro == coro_first) coro_first = coro->next;
1422 1493
… …
1476 1547
1477 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1548 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1478 TRANSFER (ta, 1); 1549 TRANSFER (ta, 1);
1479} 1550}
1480 1551
1552/*****************************************************************************/
1553/* gensub: simple closure generation utility */
1554
1555#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1556
1557/* create a closure from XS, returns a code reference */
1558/* the arg can be accessed via GENSUB_ARG from the callback */
1559/* the callback must use dXSARGS/XSRETURN */
1560static SV *
1561gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1562{
1563 CV *cv = (CV *)newSV (0);
1564
1565 sv_upgrade ((SV *)cv, SVt_PVCV);
1566
1567 CvANON_on (cv);
1568 CvISXSUB_on (cv);
1569 CvXSUB (cv) = xsub;
1570 GENSUB_ARG = arg;
1571
1572 return newRV_noinc ((SV *)cv);
1573}
1574
1481/** Coro ********************************************************************/ 1575/** Coro ********************************************************************/
1482 1576
1483INLINE void 1577INLINE void
1484coro_enq (pTHX_ struct coro *coro) 1578coro_enq (pTHX_ struct coro *coro)
1485{ 1579{
… …
1503{ 1597{
1504 struct coro *coro; 1598 struct coro *coro;
1505 SV *sv_hook; 1599 SV *sv_hook;
1506 void (*xs_hook)(void); 1600 void (*xs_hook)(void);
1507 1601
1508 if (SvROK (coro_sv))
1509 coro_sv = SvRV (coro_sv);
1510
1511 coro = SvSTATE (coro_sv); 1602 coro = SvSTATE (coro_sv);
1512 1603
1513 if (coro->flags & CF_READY) 1604 if (coro->flags & CF_READY)
1514 return 0; 1605 return 0;
1515 1606
… …
1528 ENTER; 1619 ENTER;
1529 SAVETMPS; 1620 SAVETMPS;
1530 1621
1531 PUSHMARK (SP); 1622 PUSHMARK (SP);
1532 PUTBACK; 1623 PUTBACK;
1533 call_sv (sv_hook, G_DISCARD); 1624 call_sv (sv_hook, G_VOID | G_DISCARD);
1534 SPAGAIN;
1535 1625
1536 FREETMPS; 1626 FREETMPS;
1537 LEAVE; 1627 LEAVE;
1538 } 1628 }
1539 1629
… …
1547api_is_ready (pTHX_ SV *coro_sv) 1637api_is_ready (pTHX_ SV *coro_sv)
1548{ 1638{
1549 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1639 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1550} 1640}
1551 1641
1642/* expects to own a reference to next->hv */
1552INLINE void 1643INLINE void
1553prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1644prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1554{ 1645{
1555 SV *prev_sv, *next_sv;
1556
1557 for (;;)
1558 {
1559 next_sv = coro_deq (aTHX);
1560
1561 /* nothing to schedule: call the idle handler */
1562 if (expect_false (!next_sv))
1563 {
1564 dSP;
1565
1566 ENTER;
1567 SAVETMPS;
1568
1569 PUSHMARK (SP);
1570 PUTBACK;
1571 call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
1572 SPAGAIN;
1573
1574 FREETMPS;
1575 LEAVE;
1576 continue;
1577 }
1578
1579 ta->next = SvSTATE_hv (next_sv);
1580
1581 /* cannot transfer to destroyed coros, skip and look for next */
1582 if (expect_false (ta->next->flags & CF_DESTROYED))
1583 {
1584 SvREFCNT_dec (next_sv);
1585 /* coro_nready has already been taken care of by destroy */
1586 continue;
1587 }
1588
1589 --coro_nready;
1590 break;
1591 }
1592
1593 /* free this only after the transfer */
1594 prev_sv = SvRV (coro_current); 1646 SV *prev_sv = SvRV (coro_current);
1647
1595 ta->prev = SvSTATE_hv (prev_sv); 1648 ta->prev = SvSTATE_hv (prev_sv);
1649 ta->next = next;
1650
1596 TRANSFER_CHECK (*ta); 1651 TRANSFER_CHECK (*ta);
1597 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); 1652
1598 ta->next->flags &= ~CF_READY;
1599 SvRV_set (coro_current, next_sv); 1653 SvRV_set (coro_current, (SV *)next->hv);
1600 1654
1601 free_coro_mortal (aTHX); 1655 free_coro_mortal (aTHX);
1602 coro_mortal = prev_sv; 1656 coro_mortal = prev_sv;
1603} 1657}
1604 1658
1659static void
1660prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1661{
1662 for (;;)
1663 {
1664 SV *next_sv = coro_deq (aTHX);
1665
1666 if (expect_true (next_sv))
1667 {
1668 struct coro *next = SvSTATE_hv (next_sv);
1669
1670 /* cannot transfer to destroyed coros, skip and look for next */
1671 if (expect_false (next->flags & CF_DESTROYED))
1672 SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */
1673 else
1674 {
1675 next->flags &= ~CF_READY;
1676 --coro_nready;
1677
1678 prepare_schedule_to (aTHX_ ta, next);
1679 break;
1680 }
1681 }
1682 else
1683 {
1684 /* nothing to schedule: call the idle handler */
1685 if (SvROK (sv_idle)
1686 && SvOBJECT (SvRV (sv_idle)))
1687 {
1688 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1689 api_ready (aTHX_ SvRV (sv_idle));
1690 --coro_nready;
1691 }
1692 else
1693 {
1694 dSP;
1695
1696 ENTER;
1697 SAVETMPS;
1698
1699 PUSHMARK (SP);
1700 PUTBACK;
1701 call_sv (sv_idle, G_VOID | G_DISCARD);
1702
1703 FREETMPS;
1704 LEAVE;
1705 }
1706 }
1707 }
1708}
1709
1605INLINE void 1710INLINE void
1606prepare_cede (pTHX_ struct coro_transfer_args *ta) 1711prepare_cede (pTHX_ struct coro_transfer_args *ta)
1607{ 1712{
1608 api_ready (aTHX_ coro_current); 1713 api_ready (aTHX_ coro_current);
1609 prepare_schedule (aTHX_ ta); 1714 prepare_schedule (aTHX_ ta);
… …
1628{ 1733{
1629 struct coro_transfer_args ta; 1734 struct coro_transfer_args ta;
1630 1735
1631 prepare_schedule (aTHX_ &ta); 1736 prepare_schedule (aTHX_ &ta);
1632 TRANSFER (ta, 1); 1737 TRANSFER (ta, 1);
1738}
1739
1740static void
1741api_schedule_to (pTHX_ SV *coro_sv)
1742{
1743 struct coro_transfer_args ta;
1744 struct coro *next = SvSTATE (coro_sv);
1745
1746 SvREFCNT_inc_NN (coro_sv);
1747 prepare_schedule_to (aTHX_ &ta, next);
1633} 1748}
1634 1749
1635static int 1750static int
1636api_cede (pTHX) 1751api_cede (pTHX)
1637{ 1752{
… …
1666static void 1781static void
1667api_trace (pTHX_ SV *coro_sv, int flags) 1782api_trace (pTHX_ SV *coro_sv, int flags)
1668{ 1783{
1669 struct coro *coro = SvSTATE (coro_sv); 1784 struct coro *coro = SvSTATE (coro_sv);
1670 1785
1786 if (coro->flags & CF_RUNNING)
1787 croak ("cannot enable tracing on a running coroutine, caught");
1788
1671 if (flags & CC_TRACE) 1789 if (flags & CC_TRACE)
1672 { 1790 {
1673 if (!coro->cctx) 1791 if (!coro->cctx)
1674 coro->cctx = cctx_new_run (); 1792 coro->cctx = cctx_new_run ();
1675 else if (!(coro->cctx->flags & CC_TRACE)) 1793 else if (!(coro->cctx->flags & CC_TRACE))
1676 croak ("cannot enable tracing on coroutine with custom stack,"); 1794 croak ("cannot enable tracing on coroutine with custom stack, caught");
1677 1795
1678 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 1796 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1679 } 1797 }
1680 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 1798 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1681 { 1799 {
… …
1684 if (coro->flags & CF_RUNNING) 1802 if (coro->flags & CF_RUNNING)
1685 PL_runops = RUNOPS_DEFAULT; 1803 PL_runops = RUNOPS_DEFAULT;
1686 else 1804 else
1687 coro->slot->runops = RUNOPS_DEFAULT; 1805 coro->slot->runops = RUNOPS_DEFAULT;
1688 } 1806 }
1807}
1808
1809static void
1810coro_call_on_destroy (pTHX_ struct coro *coro)
1811{
1812 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
1813 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1814
1815 if (on_destroyp)
1816 {
1817 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1818
1819 while (AvFILLp (on_destroy) >= 0)
1820 {
1821 dSP; /* don't disturb outer sp */
1822 SV *cb = av_pop (on_destroy);
1823
1824 PUSHMARK (SP);
1825
1826 if (statusp)
1827 {
1828 int i;
1829 AV *status = (AV *)SvRV (*statusp);
1830 EXTEND (SP, AvFILLp (status) + 1);
1831
1832 for (i = 0; i <= AvFILLp (status); ++i)
1833 PUSHs (AvARRAY (status)[i]);
1834 }
1835
1836 PUTBACK;
1837 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
1838 }
1839 }
1840}
1841
1842static void
1843slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1844{
1845 int i;
1846 HV *hv = (HV *)SvRV (coro_current);
1847 AV *av = newAV ();
1848
1849 av_extend (av, items - 1);
1850 for (i = 0; i < items; ++i)
1851 av_push (av, SvREFCNT_inc_NN (arg [i]));
1852
1853 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
1854
1855 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1856 api_ready (aTHX_ sv_manager);
1857
1858 frame->prepare = prepare_schedule;
1859 frame->check = slf_check_repeat;
1860}
1861
1862/*****************************************************************************/
1863/* async pool handler */
1864
1865static int
1866slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
1867{
1868 HV *hv = (HV *)SvRV (coro_current);
1869 struct coro *coro = (struct coro *)frame->data;
1870
1871 if (!coro->invoke_cb)
1872 return 1; /* loop till we have invoke */
1873 else
1874 {
1875 hv_store (hv, "desc", sizeof ("desc") - 1,
1876 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1877
1878 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1879
1880 {
1881 dSP;
1882 XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
1883 PUTBACK;
1884 }
1885
1886 SvREFCNT_dec (GvAV (PL_defgv));
1887 GvAV (PL_defgv) = coro->invoke_av;
1888 coro->invoke_av = 0;
1889
1890 return 0;
1891 }
1892}
1893
1894static void
1895slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1896{
1897 HV *hv = (HV *)SvRV (coro_current);
1898 struct coro *coro = SvSTATE_hv ((SV *)hv);
1899
1900 if (expect_true (coro->saved_deffh))
1901 {
1902 /* subsequent iteration */
1903 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1904 coro->saved_deffh = 0;
1905
1906 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1907 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1908 {
1909 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
1910 coro->invoke_av = newAV ();
1911
1912 frame->prepare = prepare_nop;
1913 }
1914 else
1915 {
1916 av_clear (GvAV (PL_defgv));
1917 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
1918
1919 coro->prio = 0;
1920
1921 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1922 api_trace (aTHX_ coro_current, 0);
1923
1924 frame->prepare = prepare_schedule;
1925 av_push (av_async_pool, SvREFCNT_inc (hv));
1926 }
1927 }
1928 else
1929 {
1930 /* first iteration, simply fall through */
1931 frame->prepare = prepare_nop;
1932 }
1933
1934 frame->check = slf_check_pool_handler;
1935 frame->data = (void *)coro;
1936}
1937
1938/*****************************************************************************/
1939/* rouse callback */
1940
1941#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
1942
1943static void
1944coro_rouse_callback (pTHX_ CV *cv)
1945{
1946 dXSARGS;
1947 SV *data = (SV *)GENSUB_ARG;
1948
1949 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1950 {
1951 /* first call, set args */
1952 AV *av = newAV ();
1953 SV *coro = SvRV (data);
1954
1955 SvRV_set (data, (SV *)av);
1956 api_ready (aTHX_ coro);
1957 SvREFCNT_dec (coro);
1958
1959 /* better take a full copy of the arguments */
1960 while (items--)
1961 av_store (av, items, newSVsv (ST (items)));
1962 }
1963
1964 XSRETURN_EMPTY;
1965}
1966
1967static int
1968slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
1969{
1970 SV *data = (SV *)frame->data;
1971
1972 if (CORO_THROW)
1973 return 0;
1974
1975 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1976 return 1;
1977
1978 /* now push all results on the stack */
1979 {
1980 dSP;
1981 AV *av = (AV *)SvRV (data);
1982 int i;
1983
1984 EXTEND (SP, AvFILLp (av) + 1);
1985 for (i = 0; i <= AvFILLp (av); ++i)
1986 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1987
1988 /* we have stolen the elements, so ste length to zero and free */
1989 AvFILLp (av) = -1;
1990 av_undef (av);
1991
1992 PUTBACK;
1993 }
1994
1995 return 0;
1996}
1997
1998static void
1999slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2000{
2001 SV *cb;
2002
2003 if (items)
2004 cb = arg [0];
2005 else
2006 {
2007 struct coro *coro = SvSTATE_current;
2008
2009 if (!coro->rouse_cb)
2010 croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
2011
2012 cb = sv_2mortal (coro->rouse_cb);
2013 coro->rouse_cb = 0;
2014 }
2015
2016 if (!SvROK (cb)
2017 || SvTYPE (SvRV (cb)) != SVt_PVCV
2018 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2019 croak ("Coro::rouse_wait called with illegal callback argument,");
2020
2021 {
2022 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */
2023 SV *data = (SV *)GENSUB_ARG;
2024
2025 frame->data = (void *)data;
2026 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2027 frame->check = slf_check_rouse_wait;
2028 }
2029}
2030
2031static SV *
2032coro_new_rouse_cb (pTHX)
2033{
2034 HV *hv = (HV *)SvRV (coro_current);
2035 struct coro *coro = SvSTATE_hv (hv);
2036 SV *data = newRV_inc ((SV *)hv);
2037 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);
2038
2039 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2040 SvREFCNT_dec (data); /* magicext increases the refcount */
2041
2042 SvREFCNT_dec (coro->rouse_cb);
2043 coro->rouse_cb = SvREFCNT_inc_NN (cb);
2044
2045 return cb;
1689} 2046}
1690 2047
1691/*****************************************************************************/ 2048/*****************************************************************************/
1692/* schedule-like-function opcode (SLF) */ 2049/* schedule-like-function opcode (SLF) */
1693 2050
… …
1717 2074
1718 RETURNOP (slf_restore.op_first); 2075 RETURNOP (slf_restore.op_first);
1719} 2076}
1720 2077
1721static void 2078static void
1722slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1723{
1724 prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data);
1725}
1726
1727static void
1728slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1729{
1730 assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1));
1731
1732 frame->prepare = slf_prepare_set_stacklevel;
1733 frame->check = slf_check_nop;
1734 frame->data = (void *)SvIV (arg [0]);
1735}
1736
1737static void
1738slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) 2079slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta)
1739{ 2080{
1740 SV **arg = (SV **)slf_frame.data; 2081 SV **arg = (SV **)slf_frame.data;
1741 2082
1742 prepare_transfer (aTHX_ ta, arg [0], arg [1]); 2083 prepare_transfer (aTHX_ ta, arg [0], arg [1]);
… …
1759 frame->prepare = prepare_schedule; 2100 frame->prepare = prepare_schedule;
1760 frame->check = slf_check_nop; 2101 frame->check = slf_check_nop;
1761} 2102}
1762 2103
1763static void 2104static void
2105slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
2106{
2107 struct coro *next = (struct coro *)slf_frame.data;
2108
2109 SvREFCNT_inc_NN (next->hv);
2110 prepare_schedule_to (aTHX_ ta, next);
2111}
2112
2113static void
2114slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2115{
2116 if (!items)
2117 croak ("Coro::schedule_to expects a coroutine argument, caught");
2118
2119 frame->data = (void *)SvSTATE (arg [0]);
2120 frame->prepare = slf_prepare_schedule_to;
2121 frame->check = slf_check_nop;
2122}
2123
2124static void
2125slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2126{
2127 api_ready (aTHX_ SvRV (coro_current));
2128
2129 slf_init_schedule_to (aTHX_ frame, cv, arg, items);
2130}
2131
2132static void
1764slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2133slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1765{ 2134{
1766 frame->prepare = prepare_cede; 2135 frame->prepare = prepare_cede;
1767 frame->check = slf_check_nop; 2136 frame->check = slf_check_nop;
1768} 2137}
… …
1771slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2140slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1772{ 2141{
1773 frame->prepare = prepare_cede_notself; 2142 frame->prepare = prepare_cede_notself;
1774 frame->check = slf_check_nop; 2143 frame->check = slf_check_nop;
1775} 2144}
1776
1777/* we hijack an hopefully unused CV flag for our purposes */
1778#define CVf_SLF 0x4000
1779 2145
1780/* 2146/*
1781 * these not obviously related functions are all rolled into one 2147 * these not obviously related functions are all rolled into one
1782 * function to increase chances that they all will call transfer with the same 2148 * function to increase chances that they all will call transfer with the same
1783 * stack offset 2149 * stack offset
… …
1839 } 2205 }
1840 while (slf_frame.check (aTHX_ &slf_frame)); 2206 while (slf_frame.check (aTHX_ &slf_frame));
1841 2207
1842 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2208 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1843 2209
1844 /* return value handling - mostly like entersub */
1845 {
1846 dSP;
1847 SV **bot = PL_stack_base + checkmark;
1848 int gimme = GIMME_V;
1849
1850 /* make sure we put something on the stack in scalar context */
1851 if (gimme == G_SCALAR)
1852 {
1853 if (sp == bot)
1854 XPUSHs (&PL_sv_undef);
1855
1856 SP = bot + 1;
1857 }
1858
1859 PUTBACK;
1860 }
1861
1862 /* exception handling */ 2210 /* exception handling */
1863 if (expect_false (coro_throw)) 2211 if (expect_false (CORO_THROW))
1864 { 2212 {
1865 SV *exception = sv_2mortal (coro_throw); 2213 SV *exception = sv_2mortal (CORO_THROW);
1866 2214
1867 coro_throw = 0; 2215 CORO_THROW = 0;
1868 sv_setsv (ERRSV, exception); 2216 sv_setsv (ERRSV, exception);
1869 croak (0); 2217 croak (0);
2218 }
2219
2220 /* return value handling - mostly like entersub */
2221 /* make sure we put something on the stack in scalar context */
2222 if (GIMME_V == G_SCALAR)
2223 {
2224 dSP;
2225 SV **bot = PL_stack_base + checkmark;
2226
2227 if (sp == bot) /* too few, push undef */
2228 bot [1] = &PL_sv_undef;
2229 else if (sp != bot + 1) /* too many, take last one */
2230 bot [1] = *sp;
2231
2232 SP = bot + 1;
2233
2234 PUTBACK;
1870 } 2235 }
1871 2236
1872 return NORMAL; 2237 return NORMAL;
1873} 2238}
1874 2239
… …
1915 } 2280 }
1916 else 2281 else
1917 slf_argc = 0; 2282 slf_argc = 0;
1918 2283
1919 PL_op->op_ppaddr = pp_slf; 2284 PL_op->op_ppaddr = pp_slf;
1920 PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ 2285 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
1921 2286
1922 PL_op = (OP *)&slf_restore; 2287 PL_op = (OP *)&slf_restore;
1923} 2288}
1924 2289
1925/*****************************************************************************/ 2290/*****************************************************************************/
… …
1996 PerlIOBuf_get_cnt, 2361 PerlIOBuf_get_cnt,
1997 PerlIOBuf_set_ptrcnt, 2362 PerlIOBuf_set_ptrcnt,
1998}; 2363};
1999 2364
2000/*****************************************************************************/ 2365/*****************************************************************************/
2366/* Coro::Semaphore & Coro::Signal */
2367
2368static SV *
2369coro_waitarray_new (pTHX_ int count)
2370{
2371 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */
2372 AV *av = newAV ();
2373 SV **ary;
2374
2375 /* unfortunately, building manually saves memory */
2376 Newx (ary, 2, SV *);
2377 AvALLOC (av) = ary;
2378#if PERL_VERSION_ATLEAST (5,10,0)
2379 AvARRAY (av) = ary;
2380#else
2381 /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
2382 /* -DDEBUGGING flags this as a bug, despite it perfectly working */
2383 SvPVX ((SV *)av) = (char *)ary;
2384#endif
2385 AvMAX (av) = 1;
2386 AvFILLp (av) = 0;
2387 ary [0] = newSViv (count);
2388
2389 return newRV_noinc ((SV *)av);
2390}
2391
2001/* Coro::Semaphore */ 2392/* semaphore */
2002 2393
2003static void 2394static void
2004coro_semaphore_adjust (pTHX_ AV *av, IV adjust) 2395coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2005{ 2396{
2006 SV *count_sv = AvARRAY (av)[0]; 2397 SV *count_sv = AvARRAY (av)[0];
… …
2018 AvARRAY (av)[0] = AvARRAY (av)[1]; 2409 AvARRAY (av)[0] = AvARRAY (av)[1];
2019 AvARRAY (av)[1] = count_sv; 2410 AvARRAY (av)[1] = count_sv;
2020 cb = av_shift (av); 2411 cb = av_shift (av);
2021 2412
2022 if (SvOBJECT (cb)) 2413 if (SvOBJECT (cb))
2414 {
2023 api_ready (aTHX_ cb); 2415 api_ready (aTHX_ cb);
2024 else 2416 --count;
2025 croak ("callbacks not yet supported"); 2417 }
2418 else if (SvTYPE (cb) == SVt_PVCV)
2419 {
2420 dSP;
2421 PUSHMARK (SP);
2422 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2423 PUTBACK;
2424 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2425 }
2026 2426
2027 SvREFCNT_dec (cb); 2427 SvREFCNT_dec (cb);
2028
2029 --count;
2030 } 2428 }
2031} 2429}
2032 2430
2033static void 2431static void
2034coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2432coro_semaphore_on_destroy (pTHX_ struct coro *coro)
… …
2036 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2434 /* call $sem->adjust (0) to possibly wake up some other waiters */
2037 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2435 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2038} 2436}
2039 2437
2040static int 2438static int
2041slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) 2439slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2042{ 2440{
2043 AV *av = (AV *)frame->data; 2441 AV *av = (AV *)frame->data;
2044 SV *count_sv = AvARRAY (av)[0]; 2442 SV *count_sv = AvARRAY (av)[0];
2045 2443
2444 /* if we are about to throw, don't actually acquire the lock, just throw */
2445 if (CORO_THROW)
2446 return 0;
2046 if (SvIVX (count_sv) > 0) 2447 else if (SvIVX (count_sv) > 0)
2047 { 2448 {
2048 SvSTATE_current->on_destroy = 0; 2449 SvSTATE_current->on_destroy = 0;
2450
2451 if (acquire)
2049 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2452 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2453 else
2454 coro_semaphore_adjust (aTHX_ av, 0);
2455
2050 return 0; 2456 return 0;
2051 } 2457 }
2052 else 2458 else
2053 { 2459 {
2054 int i; 2460 int i;
… …
2063 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2469 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2064 return 1; 2470 return 1;
2065 } 2471 }
2066} 2472}
2067 2473
2068static void 2474static int
2475slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
2476{
2477 return slf_check_semaphore_down_or_wait (aTHX_ frame, 1);
2478}
2479
2480static int
2481slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame)
2482{
2483 return slf_check_semaphore_down_or_wait (aTHX_ frame, 0);
2484}
2485
2486static void
2069slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2487slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2070{ 2488{
2071 AV *av = (AV *)SvRV (arg [0]); 2489 AV *av = (AV *)SvRV (arg [0]);
2072 2490
2073 if (SvIVX (AvARRAY (av)[0]) > 0) 2491 if (SvIVX (AvARRAY (av)[0]) > 0)
2074 { 2492 {
2075 frame->data = (void *)av; 2493 frame->data = (void *)av;
2076 frame->prepare = prepare_nop; 2494 frame->prepare = prepare_nop;
2077 SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2078 } 2495 }
2079 else 2496 else
2080 { 2497 {
2081 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2498 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2082 2499
2083 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 2500 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2084 frame->prepare = prepare_schedule; 2501 frame->prepare = prepare_schedule;
2085 2502
2086 /* to avoid race conditions when a woken-up coro gets terminated */ 2503 /* to avoid race conditions when a woken-up coro gets terminated */
2087 /* we arrange for a temporary on_destroy that calls adjust (0) */ 2504 /* we arrange for a temporary on_destroy that calls adjust (0) */
2088 assert (!SvSTATE_current->on_destroy);//D
2089 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 2505 SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2090 } 2506 }
2507}
2091 2508
2509static void
2510slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2511{
2512 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2092 frame->check = slf_check_semaphore_down; 2513 frame->check = slf_check_semaphore_down;
2093
2094} 2514}
2095 2515
2096/*****************************************************************************/ 2516static void
2097/* gensub: simple closure generation utility */ 2517slf_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{ 2518{
2107 CV *cv = (CV *)newSV (0); 2519 if (items >= 2)
2520 {
2521 /* callback form */
2522 AV *av = (AV *)SvRV (arg [0]);
2523 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2108 2524
2109 sv_upgrade ((SV *)cv, SVt_PVCV); 2525 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2110 2526
2111 CvANON_on (cv); 2527 if (SvIVX (AvARRAY (av)[0]) > 0)
2112 CvISXSUB_on (cv); 2528 coro_semaphore_adjust (aTHX_ av, 0);
2113 CvXSUB (cv) = xsub;
2114 GENSUB_ARG = arg;
2115 2529
2116 return newRV_noinc ((SV *)cv); 2530 frame->prepare = prepare_nop;
2531 frame->check = slf_check_nop;
2532 }
2533 else
2534 {
2535 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2536 frame->check = slf_check_semaphore_wait;
2537 }
2538}
2539
2540/* signal */
2541
2542static void
2543coro_signal_wake (pTHX_ AV *av, int count)
2544{
2545 SvIVX (AvARRAY (av)[0]) = 0;
2546
2547 /* now signal count waiters */
2548 while (count > 0 && AvFILLp (av) > 0)
2549 {
2550 SV *cb;
2551
2552 /* swap first two elements so we can shift a waiter */
2553 cb = AvARRAY (av)[0];
2554 AvARRAY (av)[0] = AvARRAY (av)[1];
2555 AvARRAY (av)[1] = cb;
2556
2557 cb = av_shift (av);
2558
2559 api_ready (aTHX_ cb);
2560 sv_setiv (cb, 0); /* signal waiter */
2561 SvREFCNT_dec (cb);
2562
2563 --count;
2564 }
2565}
2566
2567static int
2568slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
2569{
2570 /* if we are about to throw, also stop waiting */
2571 return SvROK ((SV *)frame->data) && !CORO_THROW;
2572}
2573
2574static void
2575slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2576{
2577 AV *av = (AV *)SvRV (arg [0]);
2578
2579 if (SvIVX (AvARRAY (av)[0]))
2580 {
2581 SvIVX (AvARRAY (av)[0]) = 0;
2582 frame->prepare = prepare_nop;
2583 frame->check = slf_check_nop;
2584 }
2585 else
2586 {
2587 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */
2588
2589 av_push (av, waiter);
2590
2591 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2592 frame->prepare = prepare_schedule;
2593 frame->check = slf_check_signal_wait;
2594 }
2117} 2595}
2118 2596
2119/*****************************************************************************/ 2597/*****************************************************************************/
2120/* Coro::AIO */ 2598/* Coro::AIO */
2121 2599
… …
2136 dXSARGS; 2614 dXSARGS;
2137 AV *state = (AV *)GENSUB_ARG; 2615 AV *state = (AV *)GENSUB_ARG;
2138 SV *coro = av_pop (state); 2616 SV *coro = av_pop (state);
2139 SV *data_sv = newSV (sizeof (struct io_state)); 2617 SV *data_sv = newSV (sizeof (struct io_state));
2140 2618
2141 av_extend (state, items); 2619 av_extend (state, items - 1);
2142 2620
2143 sv_upgrade (data_sv, SVt_PV); 2621 sv_upgrade (data_sv, SVt_PV);
2144 SvCUR_set (data_sv, sizeof (struct io_state)); 2622 SvCUR_set (data_sv, sizeof (struct io_state));
2145 SvPOK_only (data_sv); 2623 SvPOK_only (data_sv);
2146 2624
… …
2171static int 2649static int
2172slf_check_aio_req (pTHX_ struct CoroSLF *frame) 2650slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2173{ 2651{
2174 AV *state = (AV *)frame->data; 2652 AV *state = (AV *)frame->data;
2175 2653
2654 /* if we are about to throw, return early */
2655 /* this does not cancel the aio request, but at least */
2656 /* it quickly returns */
2657 if (CORO_THROW)
2658 return 0;
2659
2176 /* one element that is an RV? repeat! */ 2660 /* one element that is an RV? repeat! */
2177 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 2661 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))
2178 return 1; 2662 return 1;
2179 2663
2180 /* restore status */ 2664 /* restore status */
… …
2275 XSRETURN_EMPTY; 2759 XSRETURN_EMPTY;
2276} 2760}
2277 2761
2278/*****************************************************************************/ 2762/*****************************************************************************/
2279 2763
2764#if CORO_CLONE
2765# include "clone.c"
2766#endif
2767
2280MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 2768MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2281 2769
2282PROTOTYPES: DISABLE 2770PROTOTYPES: DISABLE
2283 2771
2284BOOT: 2772BOOT:
… …
2288 coro_thx = PERL_GET_CONTEXT; 2776 coro_thx = PERL_GET_CONTEXT;
2289# endif 2777# endif
2290#endif 2778#endif
2291 BOOT_PAGESIZE; 2779 BOOT_PAGESIZE;
2292 2780
2781 cctx_current = cctx_new_empty ();
2782
2293 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 2783 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2294 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 2784 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2295 2785
2296 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 2786 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2297 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; 2787 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
… …
2316 2806
2317 { 2807 {
2318 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); 2808 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2319 2809
2320 if (!PL_custom_op_names) PL_custom_op_names = newHV (); 2810 if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2321 hv_store_ent (PL_custom_op_names, slf, 2811 hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2322 newSVpv ("coro_slf", 0), 0);
2323 2812
2324 if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); 2813 if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2325 hv_store_ent (PL_custom_op_descs, slf, 2814 hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2326 newSVpv ("coro schedule like function", 0), 0);
2327 } 2815 }
2328 2816
2329 coroapi.ver = CORO_API_VERSION; 2817 coroapi.ver = CORO_API_VERSION;
2330 coroapi.rev = CORO_API_REVISION; 2818 coroapi.rev = CORO_API_REVISION;
2331 2819
… …
2350 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 2838 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
2351} 2839}
2352 2840
2353SV * 2841SV *
2354new (char *klass, ...) 2842new (char *klass, ...)
2843 ALIAS:
2844 Coro::new = 1
2355 CODE: 2845 CODE:
2356{ 2846{
2357 struct coro *coro; 2847 struct coro *coro;
2358 MAGIC *mg; 2848 MAGIC *mg;
2359 HV *hv; 2849 HV *hv;
2850 CV *cb;
2360 int i; 2851 int i;
2852
2853 if (items > 1)
2854 {
2855 cb = coro_sv_2cv (aTHX_ ST (1));
2856
2857 if (!ix)
2858 {
2859 if (CvISXSUB (cb))
2860 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2861
2862 if (!CvROOT (cb))
2863 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2864 }
2865 }
2361 2866
2362 Newz (0, coro, 1, struct coro); 2867 Newz (0, coro, 1, struct coro);
2363 coro->args = newAV (); 2868 coro->args = newAV ();
2364 coro->flags = CF_NEW; 2869 coro->flags = CF_NEW;
2365 2870
… …
2370 coro->hv = hv = newHV (); 2875 coro->hv = hv = newHV ();
2371 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); 2876 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2372 mg->mg_flags |= MGf_DUP; 2877 mg->mg_flags |= MGf_DUP;
2373 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 2878 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2374 2879
2880 if (items > 1)
2881 {
2375 av_extend (coro->args, items - 1); 2882 av_extend (coro->args, items - 1 + ix - 1);
2883
2884 if (ix)
2885 {
2886 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2887 cb = cv_coro_run;
2888 }
2889
2890 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2891
2376 for (i = 1; i < items; i++) 2892 for (i = 2; i < items; i++)
2377 av_push (coro->args, newSVsv (ST (i))); 2893 av_push (coro->args, newSVsv (ST (i)));
2894 }
2378} 2895}
2379 OUTPUT: 2896 OUTPUT:
2380 RETVAL 2897 RETVAL
2381
2382void
2383_set_stacklevel (...)
2384 CODE:
2385 CORO_EXECUTE_SLF_XS (slf_init_set_stacklevel);
2386 2898
2387void 2899void
2388transfer (...) 2900transfer (...)
2389 PROTOTYPE: $$ 2901 PROTOTYPE: $$
2390 CODE: 2902 CODE:
… …
2400void 2912void
2401_exit (int code) 2913_exit (int code)
2402 PROTOTYPE: $ 2914 PROTOTYPE: $
2403 CODE: 2915 CODE:
2404 _exit (code); 2916 _exit (code);
2917
2918SV *
2919clone (Coro::State coro)
2920 CODE:
2921{
2922#if CORO_CLONE
2923 struct coro *ncoro = coro_clone (coro);
2924 MAGIC *mg;
2925 /* TODO: too much duplication */
2926 ncoro->hv = newHV ();
2927 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
2928 mg->mg_flags |= MGf_DUP;
2929 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
2930#else
2931 croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
2932#endif
2933}
2934 OUTPUT:
2935 RETVAL
2405 2936
2406int 2937int
2407cctx_stacksize (int new_stacksize = 0) 2938cctx_stacksize (int new_stacksize = 0)
2408 PROTOTYPE: ;$ 2939 PROTOTYPE: ;$
2409 CODE: 2940 CODE:
… …
2516throw (Coro::State self, SV *throw = &PL_sv_undef) 3047throw (Coro::State self, SV *throw = &PL_sv_undef)
2517 PROTOTYPE: $;$ 3048 PROTOTYPE: $;$
2518 CODE: 3049 CODE:
2519{ 3050{
2520 struct coro *current = SvSTATE_current; 3051 struct coro *current = SvSTATE_current;
2521 SV **throwp = self == current ? &coro_throw : &self->throw; 3052 SV **throwp = self == current ? &CORO_THROW : &self->except;
2522 SvREFCNT_dec (*throwp); 3053 SvREFCNT_dec (*throwp);
2523 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3054 *throwp = SvOK (throw) ? newSVsv (throw) : 0;
2524} 3055}
2525 3056
2526void 3057void
… …
2530 3061
2531SV * 3062SV *
2532has_cctx (Coro::State coro) 3063has_cctx (Coro::State coro)
2533 PROTOTYPE: $ 3064 PROTOTYPE: $
2534 CODE: 3065 CODE:
2535 RETVAL = boolSV (!!coro->cctx); 3066 /* maybe manage the running flag differently */
3067 RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2536 OUTPUT: 3068 OUTPUT:
2537 RETVAL 3069 RETVAL
2538 3070
2539int 3071int
2540is_traced (Coro::State coro) 3072is_traced (Coro::State coro)
… …
2560 3092
2561void 3093void
2562force_cctx () 3094force_cctx ()
2563 PROTOTYPE: 3095 PROTOTYPE:
2564 CODE: 3096 CODE:
2565 SvSTATE_current->cctx->idle_sp = 0; 3097 cctx_current->idle_sp = 0;
2566 3098
2567void 3099void
2568swap_defsv (Coro::State self) 3100swap_defsv (Coro::State self)
2569 PROTOTYPE: $ 3101 PROTOTYPE: $
2570 ALIAS: 3102 ALIAS:
… …
2585 3117
2586BOOT: 3118BOOT:
2587{ 3119{
2588 int i; 3120 int i;
2589 3121
2590 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2591 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3122 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2592 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3123 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2593 3124 cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);
3125 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2594 coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); 3126 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2595 SvREADONLY_on (coro_current); 3127 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3128 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3129 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3130 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3131
3132 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3133 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3134 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3135 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2596 3136
2597 coro_stash = gv_stashpv ("Coro", TRUE); 3137 coro_stash = gv_stashpv ("Coro", TRUE);
2598 3138
2599 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3139 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
2600 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3140 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
… …
2608 3148
2609 { 3149 {
2610 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3150 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2611 3151
2612 coroapi.schedule = api_schedule; 3152 coroapi.schedule = api_schedule;
3153 coroapi.schedule_to = api_schedule_to;
2613 coroapi.cede = api_cede; 3154 coroapi.cede = api_cede;
2614 coroapi.cede_notself = api_cede_notself; 3155 coroapi.cede_notself = api_cede_notself;
2615 coroapi.ready = api_ready; 3156 coroapi.ready = api_ready;
2616 coroapi.is_ready = api_is_ready; 3157 coroapi.is_ready = api_is_ready;
2617 coroapi.nready = coro_nready; 3158 coroapi.nready = coro_nready;
2618 coroapi.current = coro_current; 3159 coroapi.current = coro_current;
2619 3160
2620 GCoroAPI = &coroapi; 3161 /*GCoroAPI = &coroapi;*/
2621 sv_setiv (sv, (IV)&coroapi); 3162 sv_setiv (sv, (IV)&coroapi);
2622 SvREADONLY_on (sv); 3163 SvREADONLY_on (sv);
2623 } 3164 }
2624} 3165}
3166
3167void
3168terminate (...)
3169 CODE:
3170 CORO_EXECUTE_SLF_XS (slf_init_terminate);
2625 3171
2626void 3172void
2627schedule (...) 3173schedule (...)
2628 CODE: 3174 CODE:
2629 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3175 CORO_EXECUTE_SLF_XS (slf_init_schedule);
2630 3176
2631void 3177void
3178schedule_to (...)
3179 CODE:
3180 CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
3181
3182void
3183cede_to (...)
3184 CODE:
3185 CORO_EXECUTE_SLF_XS (slf_init_cede_to);
3186
3187void
2632cede (...) 3188cede (...)
2633 CODE: 3189 CODE:
2634 CORO_EXECUTE_SLF_XS (slf_init_cede); 3190 CORO_EXECUTE_SLF_XS (slf_init_cede);
2635 3191
2636void 3192void
2637cede_notself (...) 3193cede_notself (...)
2638 CODE: 3194 CODE:
2639 CORO_EXECUTE_SLF_XS (slf_init_cede_notself); 3195 CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3196
3197void
3198_cancel (Coro::State self)
3199 CODE:
3200 coro_state_destroy (aTHX_ self);
3201 coro_call_on_destroy (aTHX_ self);
2640 3202
2641void 3203void
2642_set_current (SV *current) 3204_set_current (SV *current)
2643 PROTOTYPE: $ 3205 PROTOTYPE: $
2644 CODE: 3206 CODE:
… …
2689 CODE: 3251 CODE:
2690 RETVAL = coro_nready; 3252 RETVAL = coro_nready;
2691 OUTPUT: 3253 OUTPUT:
2692 RETVAL 3254 RETVAL
2693 3255
2694# for async_pool speedup
2695void 3256void
2696_pool_1 (SV *cb) 3257_pool_handler (...)
2697 CODE: 3258 CODE:
2698{ 3259 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
2699 HV *hv = (HV *)SvRV (coro_current);
2700 struct coro *coro = SvSTATE_hv ((SV *)hv);
2701 AV *defav = GvAV (PL_defgv);
2702 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2703 AV *invoke_av;
2704 int i, len;
2705 3260
2706 if (!invoke) 3261void
3262async_pool (SV *cv, ...)
3263 PROTOTYPE: &@
3264 PPCODE:
3265{
3266 HV *hv = (HV *)av_pop (av_async_pool);
3267 AV *av = newAV ();
3268 SV *cb = ST (0);
3269 int i;
3270
3271 av_extend (av, items - 2);
3272 for (i = 1; i < items; ++i)
3273 av_push (av, SvREFCNT_inc_NN (ST (i)));
3274
3275 if ((SV *)hv == &PL_sv_undef)
2707 { 3276 {
2708 SV *old = PL_diehook; 3277 PUSHMARK (SP);
2709 PL_diehook = 0; 3278 EXTEND (SP, 2);
2710 SvREFCNT_dec (old); 3279 PUSHs (sv_Coro);
2711 croak ("\3async_pool terminate\2\n"); 3280 PUSHs ((SV *)cv_pool_handler);
3281 PUTBACK;
3282 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3283 SPAGAIN;
3284
3285 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
2712 } 3286 }
2713 3287
2714 SvREFCNT_dec (coro->saved_deffh);
2715 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2716
2717 hv_store (hv, "desc", sizeof ("desc") - 1,
2718 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2719
2720 invoke_av = (AV *)SvRV (invoke);
2721 len = av_len (invoke_av);
2722
2723 sv_setsv (cb, AvARRAY (invoke_av)[0]);
2724
2725 if (len > 0)
2726 { 3288 {
2727 av_fill (defav, len - 1); 3289 struct coro *coro = SvSTATE_hv (hv);
2728 for (i = 0; i < len; ++i) 3290
2729 av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); 3291 assert (!coro->invoke_cb);
3292 assert (!coro->invoke_av);
3293 coro->invoke_cb = SvREFCNT_inc (cb);
3294 coro->invoke_av = av;
2730 } 3295 }
3296
3297 api_ready (aTHX_ (SV *)hv);
3298
3299 if (GIMME_V != G_VOID)
3300 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3301 else
3302 SvREFCNT_dec (hv);
2731} 3303}
3304
3305SV *
3306rouse_cb ()
3307 PROTOTYPE:
3308 CODE:
3309 RETVAL = coro_new_rouse_cb (aTHX);
3310 OUTPUT:
3311 RETVAL
2732 3312
2733void 3313void
2734_pool_2 (SV *cb) 3314rouse_wait (...)
3315 PROTOTYPE: ;$
2735 CODE: 3316 PPCODE:
2736{ 3317 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
2737 HV *hv = (HV *)SvRV (coro_current);
2738 struct coro *coro = SvSTATE_hv ((SV *)hv);
2739
2740 sv_setsv (cb, &PL_sv_undef);
2741
2742 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2743 coro->saved_deffh = 0;
2744
2745 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2746 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2747 {
2748 SV *old = PL_diehook;
2749 PL_diehook = 0;
2750 SvREFCNT_dec (old);
2751 croak ("\3async_pool terminate\2\n");
2752 }
2753
2754 av_clear (GvAV (PL_defgv));
2755 hv_store (hv, "desc", sizeof ("desc") - 1,
2756 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
2757
2758 coro->prio = 0;
2759
2760 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
2761 api_trace (aTHX_ coro_current, 0);
2762
2763 av_push (av_async_pool, newSVsv (coro_current));
2764}
2765 3318
2766 3319
2767MODULE = Coro::State PACKAGE = PerlIO::cede 3320MODULE = Coro::State PACKAGE = PerlIO::cede
2768 3321
2769BOOT: 3322BOOT:
… …
2771 3324
2772 3325
2773MODULE = Coro::State PACKAGE = Coro::Semaphore 3326MODULE = Coro::State PACKAGE = Coro::Semaphore
2774 3327
2775SV * 3328SV *
2776new (SV *klass, SV *count_ = 0) 3329new (SV *klass, SV *count = 0)
2777 CODE: 3330 CODE:
2778{ 3331 RETVAL = sv_bless (
2779 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 3332 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),
2780 AV *av = newAV (); 3333 GvSTASH (CvGV (cv))
2781 av_push (av, newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1)); 3334 );
2782 RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv))); 3335 OUTPUT:
2783} 3336 RETVAL
3337
3338# helper for Coro::Channel
3339SV *
3340_alloc (int count)
3341 CODE:
3342 RETVAL = coro_waitarray_new (aTHX_ count);
2784 OUTPUT: 3343 OUTPUT:
2785 RETVAL 3344 RETVAL
2786 3345
2787SV * 3346SV *
2788count (SV *self) 3347count (SV *self)
… …
2797 adjust = 1 3356 adjust = 1
2798 CODE: 3357 CODE:
2799 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); 3358 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2800 3359
2801void 3360void
2802down (SV *self) 3361down (...)
2803 CODE: 3362 CODE:
2804 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); 3363 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
3364
3365void
3366wait (...)
3367 CODE:
3368 CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
2805 3369
2806void 3370void
2807try (SV *self) 3371try (SV *self)
2808 PPCODE: 3372 PPCODE:
2809{ 3373{
… …
2821 XSRETURN_NO; 3385 XSRETURN_NO;
2822} 3386}
2823 3387
2824void 3388void
2825waiters (SV *self) 3389waiters (SV *self)
2826 CODE: 3390 PPCODE:
2827{ 3391{
2828 AV *av = (AV *)SvRV (self); 3392 AV *av = (AV *)SvRV (self);
3393 int wcount = AvFILLp (av) + 1 - 1;
2829 3394
2830 if (GIMME_V == G_SCALAR) 3395 if (GIMME_V == G_SCALAR)
2831 XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); 3396 XPUSHs (sv_2mortal (newSViv (wcount)));
2832 else 3397 else
2833 { 3398 {
2834 int i; 3399 int i;
2835 EXTEND (SP, AvFILLp (av) + 1 - 1); 3400 EXTEND (SP, wcount);
2836 for (i = 1; i <= AvFILLp (av); ++i) 3401 for (i = 1; i <= wcount; ++i)
2837 PUSHs (newSVsv (AvARRAY (av)[i])); 3402 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
2838 } 3403 }
2839} 3404}
3405
3406MODULE = Coro::State PACKAGE = Coro::Signal
3407
3408SV *
3409new (SV *klass)
3410 CODE:
3411 RETVAL = sv_bless (
3412 coro_waitarray_new (aTHX_ 0),
3413 GvSTASH (CvGV (cv))
3414 );
3415 OUTPUT:
3416 RETVAL
3417
3418void
3419wait (...)
3420 CODE:
3421 CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
3422
3423void
3424broadcast (SV *self)
3425 CODE:
3426{
3427 AV *av = (AV *)SvRV (self);
3428 coro_signal_wake (aTHX_ av, AvFILLp (av));
3429}
3430
3431void
3432send (SV *self)
3433 CODE:
3434{
3435 AV *av = (AV *)SvRV (self);
3436
3437 if (AvFILLp (av))
3438 coro_signal_wake (aTHX_ av, 1);
3439 else
3440 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3441}
3442
3443IV
3444awaited (SV *self)
3445 CODE:
3446 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3447 OUTPUT:
3448 RETVAL
2840 3449
2841 3450
2842MODULE = Coro::State PACKAGE = Coro::AnyEvent 3451MODULE = Coro::State PACKAGE = Coro::AnyEvent
2843 3452
2844BOOT: 3453BOOT:
… …
2859 sv_setsv (sv_activity, &PL_sv_undef); 3468 sv_setsv (sv_activity, &PL_sv_undef);
2860 if (coro_nready >= incede) 3469 if (coro_nready >= incede)
2861 { 3470 {
2862 PUSHMARK (SP); 3471 PUSHMARK (SP);
2863 PUTBACK; 3472 PUTBACK;
2864 call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); 3473 call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2865 SPAGAIN;
2866 } 3474 }
2867 3475
2868 --incede; 3476 --incede;
2869} 3477}
2870 3478
… …
2873 3481
2874void 3482void
2875_register (char *target, char *proto, SV *req) 3483_register (char *target, char *proto, SV *req)
2876 CODE: 3484 CODE:
2877{ 3485{
2878 HV *st; 3486 CV *req_cv = coro_sv_2cv (aTHX_ req);
2879 GV *gvp;
2880 CV *req_cv = sv_2cv (req, &st, &gvp, 0);
2881 /* newXSproto doesn't return the CV on 5.8 */ 3487 /* newXSproto doesn't return the CV on 5.8 */
2882 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 3488 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
2883 sv_setpv ((SV *)slf_cv, proto); 3489 sv_setpv ((SV *)slf_cv, proto);
2884 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 3490 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
2885} 3491}

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