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Comparing Coro/Coro/State.xs (file contents):
Revision 1.267 by root, Fri Nov 14 06:29:52 2008 UTC vs.
Revision 1.321 by root, Sat Nov 22 02:09:54 2008 UTC

1#define CORO_CLONE 1 //D
2
1#include "libcoro/coro.c" 3#include "libcoro/coro.c"
2 4
3#define PERL_NO_GET_CONTEXT 5#define PERL_NO_GET_CONTEXT
4#define PERL_EXT 6#define PERL_EXT
5 7
… …
16 18
17#ifdef WIN32 19#ifdef WIN32
18# undef setjmp 20# undef setjmp
19# undef longjmp 21# undef longjmp
20# undef _exit 22# undef _exit
21# define setjmp _setjmp // deep magic, don't ask 23# define setjmp _setjmp /* deep magic */
22#else 24#else
23# include <inttypes.h> /* most portable stdint.h */ 25# include <inttypes.h> /* most portable stdint.h */
24#endif 26#endif
25 27
26#ifdef HAVE_MMAP 28#ifdef HAVE_MMAP
… …
55 57
56#define PERL_VERSION_ATLEAST(a,b,c) \ 58#define PERL_VERSION_ATLEAST(a,b,c) \
57 (PERL_REVISION > (a) \ 59 (PERL_REVISION > (a) \
58 || (PERL_REVISION == (a) \ 60 || (PERL_REVISION == (a) \
59 && (PERL_VERSION > (b) \ 61 && (PERL_VERSION > (b) \
60 || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) 62 || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61 63
62#if !PERL_VERSION_ATLEAST (5,6,0) 64#if !PERL_VERSION_ATLEAST (5,6,0)
63# ifndef PL_ppaddr 65# ifndef PL_ppaddr
64# define PL_ppaddr ppaddr 66# define PL_ppaddr ppaddr
65# endif 67# endif
… …
95# define GV_NOTQUAL 0 97# define GV_NOTQUAL 0
96#endif 98#endif
97#ifndef newSV 99#ifndef newSV
98# define newSV(l) NEWSV(0,l) 100# define newSV(l) NEWSV(0,l)
99#endif 101#endif
102#ifndef CvISXSUB_on
103# define CvISXSUB_on(cv) (void)cv
104#endif
105#ifndef CvISXSUB
106# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
107#endif
108#ifndef Newx
109# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
110#endif
100 111
101/* 5.8.7 */ 112/* 5.8.7 */
102#ifndef SvRV_set 113#ifndef SvRV_set
103# define SvRV_set(s,v) SvRV(s) = (v) 114# define SvRV_set(s,v) SvRV(s) = (v)
104#endif 115#endif
… …
116# define CORO_PREFER_PERL_FUNCTIONS 0 127# define CORO_PREFER_PERL_FUNCTIONS 0
117#endif 128#endif
118 129
119/* The next macros try to return the current stack pointer, in an as 130/* The next macros try to return the current stack pointer, in an as
120 * portable way as possible. */ 131 * portable way as possible. */
132#if __GNUC__ >= 4
133# define dSTACKLEVEL int stacklevel_dummy
134# define STACKLEVEL __builtin_frame_address (0)
135#else
121#define dSTACKLEVEL volatile char stacklevel 136# define dSTACKLEVEL volatile void *stacklevel
122#define STACKLEVEL ((void *)&stacklevel) 137# define STACKLEVEL ((void *)&stacklevel)
138#endif
123 139
124#define IN_DESTRUCT (PL_main_cv == Nullcv) 140#define IN_DESTRUCT (PL_main_cv == Nullcv)
125 141
126#if __GNUC__ >= 3 142#if __GNUC__ >= 3
127# define attribute(x) __attribute__(x) 143# define attribute(x) __attribute__(x)
… …
137#define expect_true(expr) expect ((expr) != 0, 1) 153#define expect_true(expr) expect ((expr) != 0, 1)
138 154
139#define NOINLINE attribute ((noinline)) 155#define NOINLINE attribute ((noinline))
140 156
141#include "CoroAPI.h" 157#include "CoroAPI.h"
158#define GCoroAPI (&coroapi) /* very sneaky */
142 159
143#ifdef USE_ITHREADS 160#ifdef USE_ITHREADS
144
145static perl_mutex coro_lock;
146# define LOCK do { MUTEX_LOCK (&coro_lock); } while (0)
147# define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0)
148# if CORO_PTHREAD 161# if CORO_PTHREAD
149static void *coro_thx; 162static void *coro_thx;
150# endif 163# endif
151
152#else
153
154# define LOCK (void)0
155# define UNLOCK (void)0
156
157#endif 164#endif
158
159# undef LOCK
160# define LOCK (void)0
161# undef UNLOCK
162# define UNLOCK (void)0
163
164/* helper storage struct for Coro::AIO */
165struct io_state
166{
167 AV *res;
168 int errorno;
169 I32 laststype; /* U16 in 5.10.0 */
170 int laststatval;
171 Stat_t statcache;
172};
173 165
174static double (*nvtime)(); /* so why doesn't it take void? */ 166static double (*nvtime)(); /* so why doesn't it take void? */
167
168/* we hijack an hopefully unused CV flag for our purposes */
169#define CVf_SLF 0x4000
170static OP *pp_slf (pTHX);
175 171
176static U32 cctx_gen; 172static U32 cctx_gen;
177static size_t cctx_stacksize = CORO_STACKSIZE; 173static size_t cctx_stacksize = CORO_STACKSIZE;
178static struct CoroAPI coroapi; 174static struct CoroAPI coroapi;
179static AV *main_mainstack; /* used to differentiate between $main and others */ 175static AV *main_mainstack; /* used to differentiate between $main and others */
180static JMPENV *main_top_env; 176static JMPENV *main_top_env;
181static HV *coro_state_stash, *coro_stash; 177static HV *coro_state_stash, *coro_stash;
182static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 178static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
183static volatile struct coro *transfer_next;
184 179
185struct transfer_args 180static AV *av_destroy; /* destruction queue */
186{ 181static SV *sv_manager; /* the manager coro */
187 struct coro *prev, *next;
188};
189 182
190static GV *irsgv; /* $/ */ 183static GV *irsgv; /* $/ */
191static GV *stdoutgv; /* *STDOUT */ 184static GV *stdoutgv; /* *STDOUT */
192static SV *rv_diehook; 185static SV *rv_diehook;
193static SV *rv_warnhook; 186static SV *rv_warnhook;
194static HV *hv_sig; /* %SIG */ 187static HV *hv_sig; /* %SIG */
195 188
196/* async_pool helper stuff */ 189/* async_pool helper stuff */
197static SV *sv_pool_rss; 190static SV *sv_pool_rss;
198static SV *sv_pool_size; 191static SV *sv_pool_size;
192static SV *sv_async_pool_idle; /* description string */
199static AV *av_async_pool; 193static AV *av_async_pool; /* idle pool */
194static SV *sv_Coro; /* class string */
195static CV *cv_pool_handler;
196static CV *cv_coro_state_new;
200 197
201/* Coro::AnyEvent */ 198/* Coro::AnyEvent */
202static SV *sv_activity; 199static SV *sv_activity;
203 200
204static struct coro_cctx *cctx_first; 201static struct coro_cctx *cctx_first;
… …
212 CC_TRACE_LINE = 0x10, /* trace each statement */ 209 CC_TRACE_LINE = 0x10, /* trace each statement */
213 CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, 210 CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE,
214}; 211};
215 212
216/* this is a structure representing a c-level coroutine */ 213/* this is a structure representing a c-level coroutine */
217typedef struct coro_cctx { 214typedef struct coro_cctx
215{
218 struct coro_cctx *next; 216 struct coro_cctx *next;
219 217
220 /* the stack */ 218 /* the stack */
221 void *sptr; 219 void *sptr;
222 size_t ssize; 220 size_t ssize;
… …
240 CF_NEW = 0x0004, /* has never been switched to */ 238 CF_NEW = 0x0004, /* has never been switched to */
241 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 239 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
242}; 240};
243 241
244/* the structure where most of the perl state is stored, overlaid on the cxstack */ 242/* the structure where most of the perl state is stored, overlaid on the cxstack */
245typedef struct { 243typedef struct
244{
246 SV *defsv; 245 SV *defsv;
247 AV *defav; 246 AV *defav;
248 SV *errsv; 247 SV *errsv;
249 SV *irsgv; 248 SV *irsgv;
250#define VAR(name,type) type name; 249#define VAR(name,type) type name;
… …
254 253
255#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 254#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
256 255
257/* this is a structure representing a perl-level coroutine */ 256/* this is a structure representing a perl-level coroutine */
258struct coro { 257struct coro {
259 /* the c coroutine allocated to this perl coroutine, if any */ 258 /* the C coroutine allocated to this perl coroutine, if any */
260 coro_cctx *cctx; 259 coro_cctx *cctx;
261 260
262 /* process data */ 261 /* state data */
262 struct CoroSLF slf_frame; /* saved slf frame */
263 AV *mainstack; 263 AV *mainstack;
264 perl_slots *slot; /* basically the saved sp */ 264 perl_slots *slot; /* basically the saved sp */
265 265
266 CV *startcv; /* the CV to execute */
266 AV *args; /* data associated with this coroutine (initial args) */ 267 AV *args; /* data associated with this coroutine (initial args) */
267 int refcnt; /* coroutines are refcounted, yes */ 268 int refcnt; /* coroutines are refcounted, yes */
268 int flags; /* CF_ flags */ 269 int flags; /* CF_ flags */
269 HV *hv; /* the perl hash associated with this coro, if any */ 270 HV *hv; /* the perl hash associated with this coro, if any */
271 void (*on_destroy)(pTHX_ struct coro *coro);
270 272
271 /* statistics */ 273 /* statistics */
272 int usecount; /* number of transfers to this coro */ 274 int usecount; /* number of transfers to this coro */
273 275
274 /* coro process data */ 276 /* coro process data */
275 int prio; 277 int prio;
276 SV *throw; /* exception to be thrown */ 278 SV *except; /* exception to be thrown */
279 SV *rouse_cb;
277 280
278 /* async_pool */ 281 /* async_pool */
279 SV *saved_deffh; 282 SV *saved_deffh;
283 SV *invoke_cb;
284 AV *invoke_av;
280 285
281 /* linked list */ 286 /* linked list */
282 struct coro *next, *prev; 287 struct coro *next, *prev;
283}; 288};
284 289
285typedef struct coro *Coro__State; 290typedef struct coro *Coro__State;
286typedef struct coro *Coro__State_or_hashref; 291typedef struct coro *Coro__State_or_hashref;
292
293/* the following variables are effectively part of the perl context */
294/* and get copied between struct coro and these variables */
295/* the mainr easonw e don't support windows process emulation */
296static struct CoroSLF slf_frame; /* the current slf frame */
287 297
288/** Coro ********************************************************************/ 298/** Coro ********************************************************************/
289 299
290#define PRIO_MAX 3 300#define PRIO_MAX 3
291#define PRIO_HIGH 1 301#define PRIO_HIGH 1
… …
296 306
297/* for Coro.pm */ 307/* for Coro.pm */
298static SV *coro_current; 308static SV *coro_current;
299static SV *coro_readyhook; 309static SV *coro_readyhook;
300static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 310static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
301static int coro_nready; 311static CV *cv_coro_run, *cv_coro_terminate;
302static struct coro *coro_first; 312static struct coro *coro_first;
313#define coro_nready coroapi.nready
303 314
304/** lowlevel stuff **********************************************************/ 315/** lowlevel stuff **********************************************************/
305 316
306static SV * 317static SV *
307coro_get_sv (pTHX_ const char *name, int create) 318coro_get_sv (pTHX_ const char *name, int create)
… …
331 get_hv (name, create); 342 get_hv (name, create);
332#endif 343#endif
333 return get_hv (name, create); 344 return get_hv (name, create);
334} 345}
335 346
347/* may croak */
348INLINE CV *
349coro_sv_2cv (pTHX_ SV *sv)
350{
351 HV *st;
352 GV *gvp;
353 return sv_2cv (sv, &st, &gvp, 0);
354}
355
336static AV * 356static AV *
337coro_clone_padlist (pTHX_ CV *cv) 357coro_derive_padlist (pTHX_ CV *cv)
338{ 358{
339 AV *padlist = CvPADLIST (cv); 359 AV *padlist = CvPADLIST (cv);
340 AV *newpadlist, *newpad; 360 AV *newpadlist, *newpad;
341 361
342 newpadlist = newAV (); 362 newpadlist = newAV ();
… …
392 SvREFCNT_dec (av); /* sv_magicext increased the refcount */ 412 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
393 413
394 return 0; 414 return 0;
395} 415}
396 416
397#define CORO_MAGIC_type_cv PERL_MAGIC_ext 417#define CORO_MAGIC_type_cv 26
398#define CORO_MAGIC_type_state PERL_MAGIC_ext 418#define CORO_MAGIC_type_state PERL_MAGIC_ext
399 419
400static MGVTBL coro_cv_vtbl = { 420static MGVTBL coro_cv_vtbl = {
401 0, 0, 0, 0, 421 0, 0, 0, 0,
402 coro_cv_free 422 coro_cv_free
403}; 423};
404 424
425#define CORO_MAGIC_NN(sv, type) \
426 (expect_true (SvMAGIC (sv)->mg_type == type) \
427 ? SvMAGIC (sv) \
428 : mg_find (sv, type))
429
405#define CORO_MAGIC(sv, type) \ 430#define CORO_MAGIC(sv, type) \
406 SvMAGIC (sv) \ 431 (expect_true (SvMAGIC (sv)) \
407 ? SvMAGIC (sv)->mg_type == type \ 432 ? CORO_MAGIC_NN (sv, type) \
408 ? SvMAGIC (sv) \
409 : mg_find (sv, type) \
410 : 0 433 : 0)
411 434
412#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) 435#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
413#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) 436#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
414 437
415INLINE struct coro * 438INLINE struct coro *
416SvSTATE_ (pTHX_ SV *coro) 439SvSTATE_ (pTHX_ SV *coro)
417{ 440{
418 HV *stash; 441 HV *stash;
… …
435 mg = CORO_MAGIC_state (coro); 458 mg = CORO_MAGIC_state (coro);
436 return (struct coro *)mg->mg_ptr; 459 return (struct coro *)mg->mg_ptr;
437} 460}
438 461
439#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 462#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
463
464/* faster than SvSTATE, but expects a coroutine hv */
465#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
466#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
440 467
441/* the next two functions merely cache the padlists */ 468/* the next two functions merely cache the padlists */
442static void 469static void
443get_padlist (pTHX_ CV *cv) 470get_padlist (pTHX_ CV *cv)
444{ 471{
… …
450 else 477 else
451 { 478 {
452#if CORO_PREFER_PERL_FUNCTIONS 479#if CORO_PREFER_PERL_FUNCTIONS
453 /* this is probably cleaner? but also slower! */ 480 /* this is probably cleaner? but also slower! */
454 /* in practise, it seems to be less stable */ 481 /* in practise, it seems to be less stable */
455 CV *cp = Perl_cv_clone (cv); 482 CV *cp = Perl_cv_clone (aTHX_ cv);
456 CvPADLIST (cv) = CvPADLIST (cp); 483 CvPADLIST (cv) = CvPADLIST (cp);
457 CvPADLIST (cp) = 0; 484 CvPADLIST (cp) = 0;
458 SvREFCNT_dec (cp); 485 SvREFCNT_dec (cp);
459#else 486#else
460 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 487 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
461#endif 488#endif
462 } 489 }
463} 490}
464 491
465static void 492static void
… …
511 CvPADLIST (cv) = (AV *)POPs; 538 CvPADLIST (cv) = (AV *)POPs;
512 } 539 }
513 540
514 PUTBACK; 541 PUTBACK;
515 } 542 }
543
544 slf_frame = c->slf_frame;
545 CORO_THROW = c->except;
516} 546}
517 547
518static void 548static void
519save_perl (pTHX_ Coro__State c) 549save_perl (pTHX_ Coro__State c)
520{ 550{
551 c->except = CORO_THROW;
552 c->slf_frame = slf_frame;
553
521 { 554 {
522 dSP; 555 dSP;
523 I32 cxix = cxstack_ix; 556 I32 cxix = cxstack_ix;
524 PERL_CONTEXT *ccstk = cxstack; 557 PERL_CONTEXT *ccstk = cxstack;
525 PERL_SI *top_si = PL_curstackinfo; 558 PERL_SI *top_si = PL_curstackinfo;
… …
592 #undef VAR 625 #undef VAR
593 } 626 }
594} 627}
595 628
596/* 629/*
597 * allocate various perl stacks. This is an exact copy 630 * allocate various perl stacks. This is almost an exact copy
598 * of perl.c:init_stacks, except that it uses less memory 631 * of perl.c:init_stacks, except that it uses less memory
599 * on the (sometimes correct) assumption that coroutines do 632 * on the (sometimes correct) assumption that coroutines do
600 * not usually need a lot of stackspace. 633 * not usually need a lot of stackspace.
601 */ 634 */
602#if CORO_PREFER_PERL_FUNCTIONS 635#if CORO_PREFER_PERL_FUNCTIONS
603# define coro_init_stacks init_stacks 636# define coro_init_stacks(thx) init_stacks ()
604#else 637#else
605static void 638static void
606coro_init_stacks (pTHX) 639coro_init_stacks (pTHX)
607{ 640{
608 PL_curstackinfo = new_stackinfo(32, 8); 641 PL_curstackinfo = new_stackinfo(32, 8);
… …
671#if !PERL_VERSION_ATLEAST (5,10,0) 704#if !PERL_VERSION_ATLEAST (5,10,0)
672 Safefree (PL_retstack); 705 Safefree (PL_retstack);
673#endif 706#endif
674} 707}
675 708
709#define CORO_RSS \
710 rss += sizeof (SYM (curstackinfo)); \
711 rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
712 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
713 rss += SYM (tmps_max) * sizeof (SV *); \
714 rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
715 rss += SYM (scopestack_max) * sizeof (I32); \
716 rss += SYM (savestack_max) * sizeof (ANY);
717
676static size_t 718static size_t
677coro_rss (pTHX_ struct coro *coro) 719coro_rss (pTHX_ struct coro *coro)
678{ 720{
679 size_t rss = sizeof (*coro); 721 size_t rss = sizeof (*coro);
680 722
681 if (coro->mainstack) 723 if (coro->mainstack)
682 { 724 {
683 perl_slots tmp_slot;
684 perl_slots *slot;
685
686 if (coro->flags & CF_RUNNING) 725 if (coro->flags & CF_RUNNING)
687 { 726 {
688 slot = &tmp_slot; 727 #define SYM(sym) PL_ ## sym
689 728 CORO_RSS;
690 #define VAR(name,type) slot->name = PL_ ## name;
691 # include "state.h"
692 #undef VAR 729 #undef SYM
693 } 730 }
694 else 731 else
695 slot = coro->slot;
696
697 if (slot)
698 { 732 {
699 rss += sizeof (slot->curstackinfo); 733 #define SYM(sym) coro->slot->sym
700 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); 734 CORO_RSS;
701 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); 735 #undef SYM
702 rss += slot->tmps_max * sizeof (SV *);
703 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
704 rss += slot->scopestack_max * sizeof (I32);
705 rss += slot->savestack_max * sizeof (ANY);
706
707#if !PERL_VERSION_ATLEAST (5,10,0)
708 rss += slot->retstack_max * sizeof (OP *);
709#endif
710 } 736 }
711 } 737 }
712 738
713 return rss; 739 return rss;
714}
715
716/** set stacklevel support **************************************************/
717
718/* we sometimes need to create the effect of pp_set_stacklevel calling us */
719#define SSL_HEAD (void)0
720/* we sometimes need to create the effect of leaving via pp_set_stacklevel */
721#define SSL_TAIL set_stacklevel_tail (aTHX)
722
723INLINE void
724set_stacklevel_tail (pTHX)
725{
726 dSP;
727 SV **bot = SP;
728
729 int gimme = GIMME_V;
730
731 /* make sure we put something on the stack in scalar context */
732 if (gimme == G_SCALAR)
733 {
734 if (sp == bot)
735 XPUSHs (&PL_sv_undef);
736
737 SP = bot + 1;
738 }
739
740 PUTBACK;
741} 740}
742 741
743/** coroutine stack handling ************************************************/ 742/** coroutine stack handling ************************************************/
744 743
745static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); 744static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg);
… …
831 830
832 return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; 831 return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
833} 832}
834 833
835static void 834static void
835prepare_nop (pTHX_ struct coro_transfer_args *ta)
836{
837 /* kind of mega-hacky, but works */
838 ta->next = ta->prev = (struct coro *)ta;
839}
840
841static int
842slf_check_nop (pTHX_ struct CoroSLF *frame)
843{
844 return 0;
845}
846
847static int
848slf_check_repeat (pTHX_ struct CoroSLF *frame)
849{
850 return 1;
851}
852
853static UNOP coro_setup_op;
854
855static void NOINLINE /* noinline to keep it out of the transfer fast path */
836coro_setup (pTHX_ struct coro *coro) 856coro_setup (pTHX_ struct coro *coro)
837{ 857{
838 /* 858 /*
839 * emulate part of the perl startup here. 859 * emulate part of the perl startup here.
840 */ 860 */
… …
867 { 887 {
868 dSP; 888 dSP;
869 UNOP myop; 889 UNOP myop;
870 890
871 Zero (&myop, 1, UNOP); 891 Zero (&myop, 1, UNOP);
872 myop.op_next = Nullop; 892 myop.op_next = Nullop;
893 myop.op_type = OP_ENTERSUB;
873 myop.op_flags = OPf_WANT_VOID; 894 myop.op_flags = OPf_WANT_VOID;
874 895
875 PUSHMARK (SP); 896 PUSHMARK (SP);
876 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); 897 PUSHs ((SV *)coro->startcv);
877 PUTBACK; 898 PUTBACK;
878 PL_op = (OP *)&myop; 899 PL_op = (OP *)&myop;
879 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 900 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
880 SPAGAIN;
881 } 901 }
882 902
883 /* this newly created coroutine might be run on an existing cctx which most 903 /* this newly created coroutine might be run on an existing cctx which most
884 * likely was suspended in set_stacklevel, called from pp_set_stacklevel, 904 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
885 * so we have to emulate entering pp_set_stacklevel here.
886 */ 905 */
887 SSL_HEAD; 906 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
907 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
908
909 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
910 coro_setup_op.op_next = PL_op;
911 coro_setup_op.op_type = OP_ENTERSUB;
912 coro_setup_op.op_ppaddr = pp_slf;
913 /* no flags etc. required, as an init function won't be called */
914
915 PL_op = (OP *)&coro_setup_op;
916
917 /* copy throw, in case it was set before coro_setup */
918 CORO_THROW = coro->except;
888} 919}
889 920
890static void 921static void
891coro_destruct (pTHX_ struct coro *coro) 922coro_destruct (pTHX_ struct coro *coro)
892{ 923{
… …
916 947
917 SvREFCNT_dec (PL_diehook); 948 SvREFCNT_dec (PL_diehook);
918 SvREFCNT_dec (PL_warnhook); 949 SvREFCNT_dec (PL_warnhook);
919 950
920 SvREFCNT_dec (coro->saved_deffh); 951 SvREFCNT_dec (coro->saved_deffh);
921 SvREFCNT_dec (coro->throw); 952 SvREFCNT_dec (coro->rouse_cb);
953 SvREFCNT_dec (coro->invoke_cb);
954 SvREFCNT_dec (coro->invoke_av);
922 955
923 coro_destruct_stacks (aTHX); 956 coro_destruct_stacks (aTHX);
924} 957}
925 958
926INLINE void 959INLINE void
… …
936static int 969static int
937runops_trace (pTHX) 970runops_trace (pTHX)
938{ 971{
939 COP *oldcop = 0; 972 COP *oldcop = 0;
940 int oldcxix = -2; 973 int oldcxix = -2;
941 struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ 974 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
942 coro_cctx *cctx = coro->cctx; 975 coro_cctx *cctx = coro->cctx;
943 976
944 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 977 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
945 { 978 {
946 PERL_ASYNC_CHECK (); 979 PERL_ASYNC_CHECK ();
… …
998 { 1031 {
999 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1032 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1000 1033
1001 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1034 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1002 { 1035 {
1003 runops_proc_t old_runops = PL_runops;
1004 dSP; 1036 dSP;
1005 GV *gv = CvGV (cx->blk_sub.cv); 1037 GV *gv = CvGV (cx->blk_sub.cv);
1006 SV *fullname = sv_2mortal (newSV (0)); 1038 SV *fullname = sv_2mortal (newSV (0));
1007 1039
1008 if (isGV (gv)) 1040 if (isGV (gv))
… …
1013 SAVETMPS; 1045 SAVETMPS;
1014 EXTEND (SP, 3); 1046 EXTEND (SP, 3);
1015 PUSHMARK (SP); 1047 PUSHMARK (SP);
1016 PUSHs (&PL_sv_yes); 1048 PUSHs (&PL_sv_yes);
1017 PUSHs (fullname); 1049 PUSHs (fullname);
1018 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); 1050 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1019 PUTBACK; 1051 PUTBACK;
1020 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); 1052 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
1021 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1053 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1022 SPAGAIN; 1054 SPAGAIN;
1023 FREETMPS; 1055 FREETMPS;
… …
1055 1087
1056 TAINT_NOT; 1088 TAINT_NOT;
1057 return 0; 1089 return 0;
1058} 1090}
1059 1091
1092static struct coro_cctx *cctx_ssl_cctx;
1093static struct CoroSLF cctx_ssl_frame;
1094
1060static void 1095static void
1061prepare_set_stacklevel (struct transfer_args *ta, struct coro_cctx *cctx) 1096slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1062{ 1097{
1063 ta->prev = (struct coro *)cctx; 1098 ta->prev = (struct coro *)cctx_ssl_cctx;
1064 ta->next = 0; 1099 ta->next = 0;
1065} 1100}
1066 1101
1067/* inject a fake call to Coro::State::_cctx_init into the execution */ 1102static int
1068/* _cctx_init should be careful, as it could be called at almost any time */ 1103slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1069/* during execution of a perl program */ 1104{
1070/* also initialises PL_top_env */ 1105 *frame = cctx_ssl_frame;
1106
1107 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1108}
1109
1110/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1071static void NOINLINE 1111static void NOINLINE
1072cctx_prepare (pTHX_ coro_cctx *cctx) 1112cctx_prepare (pTHX_ coro_cctx *cctx)
1073{ 1113{
1074 dSP;
1075 UNOP myop;
1076
1077 PL_top_env = &PL_start_env; 1114 PL_top_env = &PL_start_env;
1078 1115
1079 if (cctx->flags & CC_TRACE) 1116 if (cctx->flags & CC_TRACE)
1080 PL_runops = runops_trace; 1117 PL_runops = runops_trace;
1081 1118
1082 Zero (&myop, 1, UNOP); 1119 /* we already must be executing an SLF op, there is no other valid way
1083 myop.op_next = PL_op; 1120 * that can lead to creation of a new cctx */
1084 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 1121 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1122 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1085 1123
1086 PUSHMARK (SP); 1124 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1087 EXTEND (SP, 2); 1125 cctx_ssl_cctx = cctx;
1088 PUSHs (sv_2mortal (newSViv ((IV)cctx))); 1126 cctx_ssl_frame = slf_frame;
1089 PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); 1127
1090 PUTBACK; 1128 slf_frame.prepare = slf_prepare_set_stacklevel;
1091 PL_op = (OP *)&myop; 1129 slf_frame.check = slf_check_set_stacklevel;
1092 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
1093 SPAGAIN;
1094} 1130}
1095 1131
1096/* the tail of transfer: execute stuff we can only do after a transfer */ 1132/* the tail of transfer: execute stuff we can only do after a transfer */
1097INLINE void 1133INLINE void
1098transfer_tail (pTHX) 1134transfer_tail (pTHX)
1099{ 1135{
1100 struct coro *next = (struct coro *)transfer_next;
1101 assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */
1102 assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next));
1103
1104 free_coro_mortal (aTHX); 1136 free_coro_mortal (aTHX);
1105 UNLOCK;
1106
1107 if (expect_false (next->throw))
1108 {
1109 SV *exception = sv_2mortal (next->throw);
1110
1111 next->throw = 0;
1112 sv_setsv (ERRSV, exception);
1113 croak (0);
1114 }
1115} 1137}
1116 1138
1117/* 1139/*
1118 * this is a _very_ stripped down perl interpreter ;) 1140 * this is a _very_ stripped down perl interpreter ;)
1119 */ 1141 */
… …
1126# endif 1148# endif
1127#endif 1149#endif
1128 { 1150 {
1129 dTHX; 1151 dTHX;
1130 1152
1131 /* we are the alternative tail to pp_set_stacklevel */ 1153 /* normally we would need to skip the entersub here */
1132 /* so do the same things here */ 1154 /* not doing so will re-execute it, which is exactly what we want */
1133 SSL_TAIL;
1134
1135 /* we now skip the op that did lead to transfer() */
1136 PL_op = PL_op->op_next; 1155 /* PL_nop = PL_nop->op_next */
1137 1156
1138 /* inject a fake subroutine call to cctx_init */ 1157 /* inject a fake subroutine call to cctx_init */
1139 cctx_prepare (aTHX_ (coro_cctx *)arg); 1158 cctx_prepare (aTHX_ (coro_cctx *)arg);
1140 1159
1141 /* cctx_run is the alternative tail of transfer() */ 1160 /* cctx_run is the alternative tail of transfer() */
1142 transfer_tail (aTHX); 1161 transfer_tail (aTHX);
1143 1162
1144 /* somebody or something will hit me for both perl_run and PL_restartop */ 1163 /* somebody or something will hit me for both perl_run and PL_restartop */
1145 PL_restartop = PL_op; 1164 PL_restartop = PL_op;
1146 perl_run (PL_curinterp); 1165 perl_run (PL_curinterp);
1166 /*
1167 * Unfortunately, there is no way to get at the return values of the
1168 * coro body here, as perl_run destroys these
1169 */
1147 1170
1148 /* 1171 /*
1149 * If perl-run returns we assume exit() was being called or the coro 1172 * If perl-run returns we assume exit() was being called or the coro
1150 * fell off the end, which seems to be the only valid (non-bug) 1173 * fell off the end, which seems to be the only valid (non-bug)
1151 * reason for perl_run to return. We try to exit by jumping to the 1174 * reason for perl_run to return. We try to exit by jumping to the
… …
1302/** coroutine switching *****************************************************/ 1325/** coroutine switching *****************************************************/
1303 1326
1304static void 1327static void
1305transfer_check (pTHX_ struct coro *prev, struct coro *next) 1328transfer_check (pTHX_ struct coro *prev, struct coro *next)
1306{ 1329{
1330 /* TODO: throwing up here is considered harmful */
1331
1307 if (expect_true (prev != next)) 1332 if (expect_true (prev != next))
1308 { 1333 {
1309 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1334 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1310 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); 1335 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,");
1311 1336
1312 if (expect_false (next->flags & CF_RUNNING)) 1337 if (expect_false (next->flags & CF_RUNNING))
1313 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); 1338 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1314 1339
1315 if (expect_false (next->flags & CF_DESTROYED)) 1340 if (expect_false (next->flags & CF_DESTROYED))
1316 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); 1341 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,");
1317 1342
1318#if !PERL_VERSION_ATLEAST (5,10,0) 1343#if !PERL_VERSION_ATLEAST (5,10,0)
1319 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1344 if (expect_false (PL_lex_state != LEX_NOTPARSING))
1320 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version"); 1345 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1321#endif 1346#endif
1322 } 1347 }
1323} 1348}
1324 1349
1325/* always use the TRANSFER macro */ 1350/* always use the TRANSFER macro */
1326static void NOINLINE 1351static void NOINLINE /* noinline so we have a fixed stackframe */
1327transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1352transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1328{ 1353{
1329 dSTACKLEVEL; 1354 dSTACKLEVEL;
1330 1355
1331 /* sometimes transfer is only called to set idle_sp */ 1356 /* sometimes transfer is only called to set idle_sp */
… …
1346 prev->flags |= CF_RUNNING; 1371 prev->flags |= CF_RUNNING;
1347 } 1372 }
1348 1373
1349 prev->flags &= ~CF_RUNNING; 1374 prev->flags &= ~CF_RUNNING;
1350 next->flags |= CF_RUNNING; 1375 next->flags |= CF_RUNNING;
1351
1352 LOCK;
1353 1376
1354 /* first get rid of the old state */ 1377 /* first get rid of the old state */
1355 save_perl (aTHX_ prev); 1378 save_perl (aTHX_ prev);
1356 1379
1357 if (expect_false (next->flags & CF_NEW)) 1380 if (expect_false (next->flags & CF_NEW))
… …
1371 prev__cctx->idle_sp == STACKLEVEL 1394 prev__cctx->idle_sp == STACKLEVEL
1372 && !(prev__cctx->flags & CC_TRACE) 1395 && !(prev__cctx->flags & CC_TRACE)
1373 && !force_cctx 1396 && !force_cctx
1374 )) 1397 ))
1375 { 1398 {
1376 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ 1399 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1377 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); 1400 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));
1378 1401
1379 prev->cctx = 0; 1402 prev->cctx = 0;
1380 1403
1381 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1404 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
… …
1389 1412
1390 ++next->usecount; 1413 ++next->usecount;
1391 1414
1392 if (expect_true (!next->cctx)) 1415 if (expect_true (!next->cctx))
1393 next->cctx = cctx_get (aTHX); 1416 next->cctx = cctx_get (aTHX);
1394
1395 assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next));
1396 transfer_next = next;
1397 1417
1398 if (expect_false (prev__cctx != next->cctx)) 1418 if (expect_false (prev__cctx != next->cctx))
1399 { 1419 {
1400 prev__cctx->top_env = PL_top_env; 1420 prev__cctx->top_env = PL_top_env;
1401 PL_top_env = next->cctx->top_env; 1421 PL_top_env = next->cctx->top_env;
… …
1415coro_state_destroy (pTHX_ struct coro *coro) 1435coro_state_destroy (pTHX_ struct coro *coro)
1416{ 1436{
1417 if (coro->flags & CF_DESTROYED) 1437 if (coro->flags & CF_DESTROYED)
1418 return 0; 1438 return 0;
1419 1439
1440 if (coro->on_destroy)
1441 coro->on_destroy (aTHX_ coro);
1442
1420 coro->flags |= CF_DESTROYED; 1443 coro->flags |= CF_DESTROYED;
1421 1444
1422 if (coro->flags & CF_READY) 1445 if (coro->flags & CF_READY)
1423 { 1446 {
1424 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1447 /* reduce nready, as destroying a ready coro effectively unreadies it */
1425 /* alternative: look through all ready queues and remove the coro */ 1448 /* alternative: look through all ready queues and remove the coro */
1426 LOCK;
1427 --coro_nready; 1449 --coro_nready;
1428 UNLOCK;
1429 } 1450 }
1430 else 1451 else
1431 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1452 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1432 1453
1433 if (coro->mainstack && coro->mainstack != main_mainstack) 1454 if (coro->mainstack && coro->mainstack != main_mainstack)
1434 { 1455 {
1435 struct coro temp; 1456 struct coro temp;
1436 1457
1437 if (coro->flags & CF_RUNNING) 1458 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1438 croak ("FATAL: tried to destroy currently running coroutine");
1439 1459
1440 save_perl (aTHX_ &temp); 1460 save_perl (aTHX_ &temp);
1441 load_perl (aTHX_ coro); 1461 load_perl (aTHX_ coro);
1442 1462
1443 coro_destruct (aTHX_ coro); 1463 coro_destruct (aTHX_ coro);
… …
1446 1466
1447 coro->slot = 0; 1467 coro->slot = 0;
1448 } 1468 }
1449 1469
1450 cctx_destroy (coro->cctx); 1470 cctx_destroy (coro->cctx);
1471 SvREFCNT_dec (coro->startcv);
1451 SvREFCNT_dec (coro->args); 1472 SvREFCNT_dec (coro->args);
1473 SvREFCNT_dec (CORO_THROW);
1452 1474
1453 if (coro->next) coro->next->prev = coro->prev; 1475 if (coro->next) coro->next->prev = coro->prev;
1454 if (coro->prev) coro->prev->next = coro->next; 1476 if (coro->prev) coro->prev->next = coro->next;
1455 if (coro == coro_first) coro_first = coro->next; 1477 if (coro == coro_first) coro_first = coro->next;
1456 1478
… …
1494# define MGf_DUP 0 1516# define MGf_DUP 0
1495#endif 1517#endif
1496}; 1518};
1497 1519
1498static void 1520static void
1499prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) 1521prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv)
1500{ 1522{
1501 ta->prev = SvSTATE (prev_sv); 1523 ta->prev = SvSTATE (prev_sv);
1502 ta->next = SvSTATE (next_sv); 1524 ta->next = SvSTATE (next_sv);
1503 TRANSFER_CHECK (*ta); 1525 TRANSFER_CHECK (*ta);
1504} 1526}
1505 1527
1506static void 1528static void
1507api_transfer (SV *prev_sv, SV *next_sv) 1529api_transfer (pTHX_ SV *prev_sv, SV *next_sv)
1508{ 1530{
1509 dTHX;
1510 struct transfer_args ta; 1531 struct coro_transfer_args ta;
1511 1532
1512 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1533 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1513 TRANSFER (ta, 1); 1534 TRANSFER (ta, 1);
1514} 1535}
1515 1536
1537/*****************************************************************************/
1538/* gensub: simple closure generation utility */
1539
1540#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1541
1542/* create a closure from XS, returns a code reference */
1543/* the arg can be accessed via GENSUB_ARG from the callback */
1544/* the callback must use dXSARGS/XSRETURN */
1545static SV *
1546gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1547{
1548 CV *cv = (CV *)newSV (0);
1549
1550 sv_upgrade ((SV *)cv, SVt_PVCV);
1551
1552 CvANON_on (cv);
1553 CvISXSUB_on (cv);
1554 CvXSUB (cv) = xsub;
1555 GENSUB_ARG = arg;
1556
1557 return newRV_noinc ((SV *)cv);
1558}
1559
1516/** Coro ********************************************************************/ 1560/** Coro ********************************************************************/
1517 1561
1518static void 1562INLINE void
1519coro_enq (pTHX_ SV *coro_sv) 1563coro_enq (pTHX_ struct coro *coro)
1520{ 1564{
1521 av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); 1565 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));
1522} 1566}
1523 1567
1524static SV * 1568INLINE SV *
1525coro_deq (pTHX) 1569coro_deq (pTHX)
1526{ 1570{
1527 int prio; 1571 int prio;
1528 1572
1529 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1573 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
… …
1532 1576
1533 return 0; 1577 return 0;
1534} 1578}
1535 1579
1536static int 1580static int
1537api_ready (SV *coro_sv) 1581api_ready (pTHX_ SV *coro_sv)
1538{ 1582{
1539 dTHX;
1540 struct coro *coro; 1583 struct coro *coro;
1541 SV *sv_hook; 1584 SV *sv_hook;
1542 void (*xs_hook)(void); 1585 void (*xs_hook)(void);
1543 1586
1544 if (SvROK (coro_sv)) 1587 if (SvROK (coro_sv))
… …
1549 if (coro->flags & CF_READY) 1592 if (coro->flags & CF_READY)
1550 return 0; 1593 return 0;
1551 1594
1552 coro->flags |= CF_READY; 1595 coro->flags |= CF_READY;
1553 1596
1554 LOCK;
1555
1556 sv_hook = coro_nready ? 0 : coro_readyhook; 1597 sv_hook = coro_nready ? 0 : coro_readyhook;
1557 xs_hook = coro_nready ? 0 : coroapi.readyhook; 1598 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1558 1599
1559 coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); 1600 coro_enq (aTHX_ coro);
1560 ++coro_nready; 1601 ++coro_nready;
1561 1602
1562 UNLOCK;
1563
1564 if (sv_hook) 1603 if (sv_hook)
1565 { 1604 {
1566 dSP; 1605 dSP;
1567 1606
1568 ENTER; 1607 ENTER;
1569 SAVETMPS; 1608 SAVETMPS;
1570 1609
1571 PUSHMARK (SP); 1610 PUSHMARK (SP);
1572 PUTBACK; 1611 PUTBACK;
1573 call_sv (sv_hook, G_DISCARD); 1612 call_sv (sv_hook, G_VOID | G_DISCARD);
1574 SPAGAIN;
1575 1613
1576 FREETMPS; 1614 FREETMPS;
1577 LEAVE; 1615 LEAVE;
1578 } 1616 }
1579 1617
… …
1582 1620
1583 return 1; 1621 return 1;
1584} 1622}
1585 1623
1586static int 1624static int
1587api_is_ready (SV *coro_sv) 1625api_is_ready (pTHX_ SV *coro_sv)
1588{ 1626{
1589 dTHX;
1590
1591 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1627 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1592} 1628}
1593 1629
1630/* expects to own a reference to next->hv */
1594INLINE void 1631INLINE void
1632prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1633{
1634 SV *prev_sv = SvRV (coro_current);
1635
1636 ta->prev = SvSTATE_hv (prev_sv);
1637 ta->next = next;
1638
1639 TRANSFER_CHECK (*ta);
1640
1641 SvRV_set (coro_current, (SV *)next->hv);
1642
1643 free_coro_mortal (aTHX);
1644 coro_mortal = prev_sv;
1645}
1646
1647static void
1595prepare_schedule (pTHX_ struct transfer_args *ta) 1648prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1596{ 1649{
1597 SV *prev_sv, *next_sv;
1598
1599 for (;;) 1650 for (;;)
1600 { 1651 {
1601 LOCK;
1602 next_sv = coro_deq (aTHX); 1652 SV *next_sv = coro_deq (aTHX);
1603 1653
1604 /* nothing to schedule: call the idle handler */
1605 if (expect_false (!next_sv)) 1654 if (expect_true (next_sv))
1606 { 1655 {
1656 struct coro *next = SvSTATE_hv (next_sv);
1657
1658 /* cannot transfer to destroyed coros, skip and look for next */
1659 if (expect_false (next->flags & CF_DESTROYED))
1660 SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */
1661 else
1662 {
1663 next->flags &= ~CF_READY;
1664 --coro_nready;
1665
1666 prepare_schedule_to (aTHX_ ta, next);
1667 break;
1668 }
1669 }
1670 else
1671 {
1672 /* nothing to schedule: call the idle handler */
1607 dSP; 1673 dSP;
1608 UNLOCK;
1609 1674
1610 ENTER; 1675 ENTER;
1611 SAVETMPS; 1676 SAVETMPS;
1612 1677
1613 PUSHMARK (SP); 1678 PUSHMARK (SP);
1614 PUTBACK; 1679 PUTBACK;
1615 call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); 1680 call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1616 SPAGAIN;
1617 1681
1618 FREETMPS; 1682 FREETMPS;
1619 LEAVE; 1683 LEAVE;
1620 continue;
1621 } 1684 }
1622
1623 ta->next = SvSTATE (next_sv);
1624
1625 /* cannot transfer to destroyed coros, skip and look for next */
1626 if (expect_false (ta->next->flags & CF_DESTROYED))
1627 {
1628 UNLOCK;
1629 SvREFCNT_dec (next_sv);
1630 /* coro_nready has already been taken care of by destroy */
1631 continue;
1632 }
1633
1634 --coro_nready;
1635 UNLOCK;
1636 break;
1637 } 1685 }
1638
1639 /* free this only after the transfer */
1640 prev_sv = SvRV (coro_current);
1641 ta->prev = SvSTATE (prev_sv);
1642 TRANSFER_CHECK (*ta);
1643 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));
1644 ta->next->flags &= ~CF_READY;
1645 SvRV_set (coro_current, next_sv);
1646
1647 LOCK;
1648 free_coro_mortal (aTHX);
1649 coro_mortal = prev_sv;
1650 UNLOCK;
1651} 1686}
1652 1687
1653INLINE void 1688INLINE void
1654prepare_cede (pTHX_ struct transfer_args *ta) 1689prepare_cede (pTHX_ struct coro_transfer_args *ta)
1655{ 1690{
1656 api_ready (coro_current); 1691 api_ready (aTHX_ coro_current);
1657 prepare_schedule (aTHX_ ta); 1692 prepare_schedule (aTHX_ ta);
1658} 1693}
1659 1694
1660static void 1695INLINE void
1661prepare_cede_notself (pTHX_ struct transfer_args *ta) 1696prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1662{ 1697{
1663 SV *prev = SvRV (coro_current); 1698 SV *prev = SvRV (coro_current);
1664 1699
1665 if (coro_nready) 1700 if (coro_nready)
1666 { 1701 {
1667 prepare_schedule (aTHX_ ta); 1702 prepare_schedule (aTHX_ ta);
1668 api_ready (prev); 1703 api_ready (aTHX_ prev);
1669 } 1704 }
1670 else 1705 else
1671 ta->prev = ta->next = SvSTATE (prev); 1706 prepare_nop (aTHX_ ta);
1672} 1707}
1673 1708
1674static void 1709static void
1675api_schedule (void) 1710api_schedule (pTHX)
1676{ 1711{
1677 dTHX;
1678 struct transfer_args ta; 1712 struct coro_transfer_args ta;
1679 1713
1680 prepare_schedule (aTHX_ &ta); 1714 prepare_schedule (aTHX_ &ta);
1681 TRANSFER (ta, 1); 1715 TRANSFER (ta, 1);
1682} 1716}
1683 1717
1718static void
1719api_schedule_to (pTHX_ SV *coro_sv)
1720{
1721 struct coro_transfer_args ta;
1722 struct coro *next = SvSTATE (coro_sv);
1723
1724 SvREFCNT_inc_NN (coro_sv);
1725 prepare_schedule_to (aTHX_ &ta, next);
1726}
1727
1684static int 1728static int
1685api_cede (void) 1729api_cede (pTHX)
1686{ 1730{
1687 dTHX;
1688 struct transfer_args ta; 1731 struct coro_transfer_args ta;
1689 1732
1690 prepare_cede (aTHX_ &ta); 1733 prepare_cede (aTHX_ &ta);
1691 1734
1692 if (expect_true (ta.prev != ta.next)) 1735 if (expect_true (ta.prev != ta.next))
1693 { 1736 {
… …
1697 else 1740 else
1698 return 0; 1741 return 0;
1699} 1742}
1700 1743
1701static int 1744static int
1702api_cede_notself (void) 1745api_cede_notself (pTHX)
1703{ 1746{
1704 if (coro_nready) 1747 if (coro_nready)
1705 { 1748 {
1706 dTHX;
1707 struct transfer_args ta; 1749 struct coro_transfer_args ta;
1708 1750
1709 prepare_cede_notself (aTHX_ &ta); 1751 prepare_cede_notself (aTHX_ &ta);
1710 TRANSFER (ta, 1); 1752 TRANSFER (ta, 1);
1711 return 1; 1753 return 1;
1712 } 1754 }
1713 else 1755 else
1714 return 0; 1756 return 0;
1715} 1757}
1716 1758
1717static void 1759static void
1718api_trace (SV *coro_sv, int flags) 1760api_trace (pTHX_ SV *coro_sv, int flags)
1719{ 1761{
1720 dTHX;
1721 struct coro *coro = SvSTATE (coro_sv); 1762 struct coro *coro = SvSTATE (coro_sv);
1722 1763
1723 if (flags & CC_TRACE) 1764 if (flags & CC_TRACE)
1724 { 1765 {
1725 if (!coro->cctx) 1766 if (!coro->cctx)
1726 coro->cctx = cctx_new_run (); 1767 coro->cctx = cctx_new_run ();
1727 else if (!(coro->cctx->flags & CC_TRACE)) 1768 else if (!(coro->cctx->flags & CC_TRACE))
1728 croak ("cannot enable tracing on coroutine with custom stack"); 1769 croak ("cannot enable tracing on coroutine with custom stack,");
1729 1770
1730 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 1771 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1731 } 1772 }
1732 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 1773 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1733 { 1774 {
… …
1738 else 1779 else
1739 coro->slot->runops = RUNOPS_DEFAULT; 1780 coro->slot->runops = RUNOPS_DEFAULT;
1740 } 1781 }
1741} 1782}
1742 1783
1743#if 0 1784static void
1785coro_call_on_destroy (pTHX_ struct coro *coro)
1786{
1787 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
1788 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1789
1790 if (on_destroyp)
1791 {
1792 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1793
1794 while (AvFILLp (on_destroy) >= 0)
1795 {
1796 dSP; /* don't disturb outer sp */
1797 SV *cb = av_pop (on_destroy);
1798
1799 PUSHMARK (SP);
1800
1801 if (statusp)
1802 {
1803 int i;
1804 AV *status = (AV *)SvRV (*statusp);
1805 EXTEND (SP, AvFILLp (status) + 1);
1806
1807 for (i = 0; i <= AvFILLp (status); ++i)
1808 PUSHs (AvARRAY (status)[i]);
1809 }
1810
1811 PUTBACK;
1812 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
1813 }
1814 }
1815}
1816
1817static void
1818slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1819{
1820 int i;
1821 HV *hv = (HV *)SvRV (coro_current);
1822 AV *av = newAV ();
1823
1824 av_extend (av, items - 1);
1825 for (i = 0; i < items; ++i)
1826 av_push (av, SvREFCNT_inc_NN (arg [i]));
1827
1828 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
1829
1830 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1831 api_ready (aTHX_ sv_manager);
1832
1833 frame->prepare = prepare_schedule;
1834 frame->check = slf_check_repeat;
1835}
1836
1837/*****************************************************************************/
1838/* async pool handler */
1839
1744static int 1840static int
1745coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) 1841slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
1746{ 1842{
1747 AV *padlist; 1843 HV *hv = (HV *)SvRV (coro_current);
1748 AV *av = (AV *)mg->mg_obj; 1844 struct coro *coro = (struct coro *)frame->data;
1749 1845
1750 abort (); 1846 if (!coro->invoke_cb)
1847 return 1; /* loop till we have invoke */
1848 else
1849 {
1850 hv_store (hv, "desc", sizeof ("desc") - 1,
1851 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1852
1853 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1854
1855 {
1856 dSP;
1857 XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
1858 PUTBACK;
1859 }
1860
1861 SvREFCNT_dec (GvAV (PL_defgv));
1862 GvAV (PL_defgv) = coro->invoke_av;
1863 coro->invoke_av = 0;
1864
1865 return 0;
1866 }
1867}
1868
1869static void
1870slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1871{
1872 HV *hv = (HV *)SvRV (coro_current);
1873 struct coro *coro = SvSTATE_hv ((SV *)hv);
1874
1875 if (expect_true (coro->saved_deffh))
1876 {
1877 /* subsequent iteration */
1878 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1879 coro->saved_deffh = 0;
1880
1881 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1882 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1883 {
1884 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
1885 coro->invoke_av = newAV ();
1886
1887 frame->prepare = prepare_nop;
1888 }
1889 else
1890 {
1891 av_clear (GvAV (PL_defgv));
1892 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
1893
1894 coro->prio = 0;
1895
1896 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1897 api_trace (aTHX_ coro_current, 0);
1898
1899 frame->prepare = prepare_schedule;
1900 av_push (av_async_pool, SvREFCNT_inc (hv));
1901 }
1902 }
1903 else
1904 {
1905 /* first iteration, simply fall through */
1906 frame->prepare = prepare_nop;
1907 }
1908
1909 frame->check = slf_check_pool_handler;
1910 frame->data = (void *)coro;
1911}
1912
1913/*****************************************************************************/
1914/* rouse callback */
1915
1916#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
1917
1918static void
1919coro_rouse_callback (pTHX_ CV *cv)
1920{
1921 dXSARGS;
1922 SV *data = (SV *)GENSUB_ARG;
1923
1924 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1925 {
1926 /* first call, set args */
1927 AV *av = newAV ();
1928 SV *coro = SvRV (data);
1929
1930 SvRV_set (data, (SV *)av);
1931 api_ready (aTHX_ coro);
1932 SvREFCNT_dec (coro);
1933
1934 /* better take a full copy of the arguments */
1935 while (items--)
1936 av_store (av, items, newSVsv (ST (items)));
1937 }
1938
1939 XSRETURN_EMPTY;
1940}
1941
1942static int
1943slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
1944{
1945 SV *data = (SV *)frame->data;
1946
1947 if (CORO_THROW)
1948 return 0;
1949
1950 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1951 return 1;
1952
1953 /* now push all results on the stack */
1954 {
1955 dSP;
1956 AV *av = (AV *)SvRV (data);
1957 int i;
1958
1959 EXTEND (SP, AvFILLp (av) + 1);
1960 for (i = 0; i <= AvFILLp (av); ++i)
1961 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1962
1963 /* we have stolen the elements, so ste length to zero and free */
1964 AvFILLp (av) = -1;
1965 av_undef (av);
1966
1967 PUTBACK;
1968 }
1751 1969
1752 return 0; 1970 return 0;
1753} 1971}
1754 1972
1755static MGVTBL coro_gensub_vtbl = { 1973static void
1756 0, 0, 0, 0, 1974slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1757 coro_gensub_free 1975{
1758}; 1976 SV *cb;
1759#endif 1977
1978 if (items)
1979 cb = arg [0];
1980 else
1981 {
1982 struct coro *coro = SvSTATE_current;
1983
1984 if (!coro->rouse_cb)
1985 croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
1986
1987 cb = sv_2mortal (coro->rouse_cb);
1988 coro->rouse_cb = 0;
1989 }
1990
1991 if (!SvROK (cb)
1992 || SvTYPE (SvRV (cb)) != SVt_PVCV
1993 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1994 croak ("Coro::rouse_wait called with illegal callback argument,");
1995
1996 {
1997 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */
1998 SV *data = (SV *)GENSUB_ARG;
1999
2000 frame->data = (void *)data;
2001 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2002 frame->check = slf_check_rouse_wait;
2003 }
2004}
2005
2006static SV *
2007coro_new_rouse_cb (pTHX)
2008{
2009 HV *hv = (HV *)SvRV (coro_current);
2010 struct coro *coro = SvSTATE_hv (hv);
2011 SV *data = newRV_inc ((SV *)hv);
2012 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);
2013
2014 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2015 SvREFCNT_dec (data); /* magicext increases the refcount */
2016
2017 SvREFCNT_dec (coro->rouse_cb);
2018 coro->rouse_cb = SvREFCNT_inc_NN (cb);
2019
2020 return cb;
2021}
2022
2023/*****************************************************************************/
2024/* schedule-like-function opcode (SLF) */
2025
2026static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */
2027static const CV *slf_cv;
2028static SV **slf_argv;
2029static int slf_argc, slf_arga; /* count, allocated */
2030static I32 slf_ax; /* top of stack, for restore */
2031
2032/* this restores the stack in the case we patched the entersub, to */
2033/* recreate the stack frame as perl will on following calls */
2034/* since entersub cleared the stack */
2035static OP *
2036pp_restore (pTHX)
2037{
2038 int i;
2039 SV **SP = PL_stack_base + slf_ax;
2040
2041 PUSHMARK (SP);
2042
2043 EXTEND (SP, slf_argc + 1);
2044
2045 for (i = 0; i < slf_argc; ++i)
2046 PUSHs (sv_2mortal (slf_argv [i]));
2047
2048 PUSHs ((SV *)CvGV (slf_cv));
2049
2050 RETURNOP (slf_restore.op_first);
2051}
2052
2053static void
2054slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta)
2055{
2056 SV **arg = (SV **)slf_frame.data;
2057
2058 prepare_transfer (aTHX_ ta, arg [0], arg [1]);
2059}
2060
2061static void
2062slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2063{
2064 if (items != 2)
2065 croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items);
2066
2067 frame->prepare = slf_prepare_transfer;
2068 frame->check = slf_check_nop;
2069 frame->data = (void *)arg; /* let's hope it will stay valid */
2070}
2071
2072static void
2073slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2074{
2075 frame->prepare = prepare_schedule;
2076 frame->check = slf_check_nop;
2077}
2078
2079static void
2080slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
2081{
2082 struct coro *next = (struct coro *)slf_frame.data;
2083
2084 SvREFCNT_inc_NN (next->hv);
2085 prepare_schedule_to (aTHX_ ta, next);
2086}
2087
2088static void
2089slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2090{
2091 if (!items)
2092 croak ("Coro::schedule_to expects a coroutine argument, caught");
2093
2094 frame->data = (void *)SvSTATE (arg [0]);
2095 frame->prepare = slf_prepare_schedule_to;
2096 frame->check = slf_check_nop;
2097}
2098
2099static void
2100slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2101{
2102 api_ready (aTHX_ SvRV (coro_current));
2103
2104 slf_init_schedule_to (aTHX_ frame, cv, arg, items);
2105}
2106
2107static void
2108slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2109{
2110 frame->prepare = prepare_cede;
2111 frame->check = slf_check_nop;
2112}
2113
2114static void
2115slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2116{
2117 frame->prepare = prepare_cede_notself;
2118 frame->check = slf_check_nop;
2119}
2120
2121/*
2122 * these not obviously related functions are all rolled into one
2123 * function to increase chances that they all will call transfer with the same
2124 * stack offset
2125 * SLF stands for "schedule-like-function".
2126 */
2127static OP *
2128pp_slf (pTHX)
2129{
2130 I32 checkmark; /* mark SP to see how many elements check has pushed */
2131
2132 /* set up the slf frame, unless it has already been set-up */
2133 /* the latter happens when a new coro has been started */
2134 /* or when a new cctx was attached to an existing coroutine */
2135 if (expect_true (!slf_frame.prepare))
2136 {
2137 /* first iteration */
2138 dSP;
2139 SV **arg = PL_stack_base + TOPMARK + 1;
2140 int items = SP - arg; /* args without function object */
2141 SV *gv = *sp;
2142
2143 /* do a quick consistency check on the "function" object, and if it isn't */
2144 /* for us, divert to the real entersub */
2145 if (SvTYPE (gv) != SVt_PVGV
2146 || !GvCV (gv)
2147 || !(CvFLAGS (GvCV (gv)) & CVf_SLF))
2148 return PL_ppaddr[OP_ENTERSUB](aTHX);
2149
2150 if (!(PL_op->op_flags & OPf_STACKED))
2151 {
2152 /* ampersand-form of call, use @_ instead of stack */
2153 AV *av = GvAV (PL_defgv);
2154 arg = AvARRAY (av);
2155 items = AvFILLp (av) + 1;
2156 }
2157
2158 /* now call the init function, which needs to set up slf_frame */
2159 ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr)
2160 (aTHX_ &slf_frame, GvCV (gv), arg, items);
2161
2162 /* pop args */
2163 SP = PL_stack_base + POPMARK;
2164
2165 PUTBACK;
2166 }
2167
2168 /* now that we have a slf_frame, interpret it! */
2169 /* we use a callback system not to make the code needlessly */
2170 /* complicated, but so we can run multiple perl coros from one cctx */
2171
2172 do
2173 {
2174 struct coro_transfer_args ta;
2175
2176 slf_frame.prepare (aTHX_ &ta);
2177 TRANSFER (ta, 0);
2178
2179 checkmark = PL_stack_sp - PL_stack_base;
2180 }
2181 while (slf_frame.check (aTHX_ &slf_frame));
2182
2183 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
2184
2185 /* exception handling */
2186 if (expect_false (CORO_THROW))
2187 {
2188 SV *exception = sv_2mortal (CORO_THROW);
2189
2190 CORO_THROW = 0;
2191 sv_setsv (ERRSV, exception);
2192 croak (0);
2193 }
2194
2195 /* return value handling - mostly like entersub */
2196 /* make sure we put something on the stack in scalar context */
2197 if (GIMME_V == G_SCALAR)
2198 {
2199 dSP;
2200 SV **bot = PL_stack_base + checkmark;
2201
2202 if (sp == bot) /* too few, push undef */
2203 bot [1] = &PL_sv_undef;
2204 else if (sp != bot + 1) /* too many, take last one */
2205 bot [1] = *sp;
2206
2207 SP = bot + 1;
2208
2209 PUTBACK;
2210 }
2211
2212 return NORMAL;
2213}
2214
2215static void
2216api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax)
2217{
2218 int i;
2219 SV **arg = PL_stack_base + ax;
2220 int items = PL_stack_sp - arg + 1;
2221
2222 assert (("FATAL: SLF call with illegal CV value", !CvANON (cv)));
2223
2224 if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB]
2225 && PL_op->op_ppaddr != pp_slf)
2226 croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught");
2227
2228 CvFLAGS (cv) |= CVf_SLF;
2229 CvXSUBANY (cv).any_ptr = (void *)init_cb;
2230 slf_cv = cv;
2231
2232 /* we patch the op, and then re-run the whole call */
2233 /* we have to put the same argument on the stack for this to work */
2234 /* and this will be done by pp_restore */
2235 slf_restore.op_next = (OP *)&slf_restore;
2236 slf_restore.op_type = OP_CUSTOM;
2237 slf_restore.op_ppaddr = pp_restore;
2238 slf_restore.op_first = PL_op;
2239
2240 slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */
2241
2242 if (PL_op->op_flags & OPf_STACKED)
2243 {
2244 if (items > slf_arga)
2245 {
2246 slf_arga = items;
2247 free (slf_argv);
2248 slf_argv = malloc (slf_arga * sizeof (SV *));
2249 }
2250
2251 slf_argc = items;
2252
2253 for (i = 0; i < items; ++i)
2254 slf_argv [i] = SvREFCNT_inc (arg [i]);
2255 }
2256 else
2257 slf_argc = 0;
2258
2259 PL_op->op_ppaddr = pp_slf;
2260 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2261
2262 PL_op = (OP *)&slf_restore;
2263}
1760 2264
1761/*****************************************************************************/ 2265/*****************************************************************************/
1762/* PerlIO::cede */ 2266/* PerlIO::cede */
1763 2267
1764typedef struct 2268typedef struct
… …
1792 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2296 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
1793 double now = nvtime (); 2297 double now = nvtime ();
1794 2298
1795 if (now >= self->next) 2299 if (now >= self->next)
1796 { 2300 {
1797 api_cede (); 2301 api_cede (aTHX);
1798 self->next = now + self->every; 2302 self->next = now + self->every;
1799 } 2303 }
1800 2304
1801 return PerlIOBuf_flush (aTHX_ f); 2305 return PerlIOBuf_flush (aTHX_ f);
1802} 2306}
… …
1832 PerlIOBuf_get_cnt, 2336 PerlIOBuf_get_cnt,
1833 PerlIOBuf_set_ptrcnt, 2337 PerlIOBuf_set_ptrcnt,
1834}; 2338};
1835 2339
1836/*****************************************************************************/ 2340/*****************************************************************************/
2341/* Coro::Semaphore & Coro::Signal */
1837 2342
1838static const CV *ssl_cv; /* for quick consistency check */
1839
1840static UNOP ssl_restore; /* restore stack as entersub did, for first-re-run */
1841static SV *ssl_arg0;
1842static SV *ssl_arg1;
1843
1844/* this restores the stack in the case we patched the entersub, to */
1845/* recreate the stack frame as perl will on following calls */
1846/* since entersub cleared the stack */
1847static OP * 2343static SV *
1848pp_restore (pTHX) 2344coro_waitarray_new (pTHX_ int count)
1849{ 2345{
2346 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */
2347 AV *av = newAV ();
2348 SV **ary;
2349
2350 /* unfortunately, building manually saves memory */
2351 Newx (ary, 2, SV *);
2352 AvALLOC (av) = ary;
2353 /*AvARRAY (av) = ary;*/
2354 SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */
2355 AvMAX (av) = 1;
2356 AvFILLp (av) = 0;
2357 ary [0] = newSViv (count);
2358
2359 return newRV_noinc ((SV *)av);
2360}
2361
2362/* semaphore */
2363
2364static void
2365coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2366{
2367 SV *count_sv = AvARRAY (av)[0];
2368 IV count = SvIVX (count_sv);
2369
2370 count += adjust;
2371 SvIVX (count_sv) = count;
2372
2373 /* now wake up as many waiters as are expected to lock */
2374 while (count > 0 && AvFILLp (av) > 0)
2375 {
2376 SV *cb;
2377
2378 /* swap first two elements so we can shift a waiter */
2379 AvARRAY (av)[0] = AvARRAY (av)[1];
2380 AvARRAY (av)[1] = count_sv;
2381 cb = av_shift (av);
2382
2383 if (SvOBJECT (cb))
2384 {
2385 api_ready (aTHX_ cb);
2386 --count;
2387 }
2388 else if (SvTYPE (cb) == SVt_PVCV)
2389 {
2390 dSP;
2391 PUSHMARK (SP);
2392 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2393 PUTBACK;
2394 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2395 }
2396
2397 SvREFCNT_dec (cb);
2398 }
2399}
2400
2401static void
2402coro_semaphore_on_destroy (pTHX_ struct coro *coro)
2403{
2404 /* call $sem->adjust (0) to possibly wake up some other waiters */
2405 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2406}
2407
2408static int
2409slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2410{
2411 AV *av = (AV *)frame->data;
2412 SV *count_sv = AvARRAY (av)[0];
2413
2414 /* if we are about to throw, don't actually acquire the lock, just throw */
2415 if (CORO_THROW)
2416 return 0;
2417 else if (SvIVX (count_sv) > 0)
2418 {
2419 SvSTATE_current->on_destroy = 0;
2420
2421 if (acquire)
2422 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2423 else
2424 coro_semaphore_adjust (aTHX_ av, 0);
2425
2426 return 0;
2427 }
2428 else
2429 {
2430 int i;
2431 /* if we were woken up but can't down, we look through the whole */
2432 /* waiters list and only add us if we aren't in there already */
2433 /* this avoids some degenerate memory usage cases */
2434
2435 for (i = 1; i <= AvFILLp (av); ++i)
2436 if (AvARRAY (av)[i] == SvRV (coro_current))
2437 return 1;
2438
2439 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2440 return 1;
2441 }
2442}
2443
2444static int
2445slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
2446{
2447 return slf_check_semaphore_down_or_wait (aTHX_ frame, 1);
2448}
2449
2450static int
2451slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame)
2452{
2453 return slf_check_semaphore_down_or_wait (aTHX_ frame, 0);
2454}
2455
2456static void
2457slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2458{
2459 AV *av = (AV *)SvRV (arg [0]);
2460
2461 if (SvIVX (AvARRAY (av)[0]) > 0)
2462 {
2463 frame->data = (void *)av;
2464 frame->prepare = prepare_nop;
2465 }
2466 else
2467 {
2468 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2469
2470 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2471 frame->prepare = prepare_schedule;
2472
2473 /* to avoid race conditions when a woken-up coro gets terminated */
2474 /* we arrange for a temporary on_destroy that calls adjust (0) */
2475 SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2476 }
2477}
2478
2479static void
2480slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2481{
2482 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2483 frame->check = slf_check_semaphore_down;
2484}
2485
2486static void
2487slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2488{
2489 if (items >= 2)
2490 {
2491 /* callback form */
2492 AV *av = (AV *)SvRV (arg [0]);
2493 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2494
2495 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2496
2497 if (SvIVX (AvARRAY (av)[0]) > 0)
2498 coro_semaphore_adjust (aTHX_ av, 0);
2499
2500 frame->prepare = prepare_nop;
2501 frame->check = slf_check_nop;
2502 }
2503 else
2504 {
2505 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2506 frame->check = slf_check_semaphore_wait;
2507 }
2508}
2509
2510/* signal */
2511
2512static void
2513coro_signal_wake (pTHX_ AV *av, int count)
2514{
2515 SvIVX (AvARRAY (av)[0]) = 0;
2516
2517 /* now signal count waiters */
2518 while (count > 0 && AvFILLp (av) > 0)
2519 {
2520 SV *cb;
2521
2522 /* swap first two elements so we can shift a waiter */
2523 cb = AvARRAY (av)[0];
2524 AvARRAY (av)[0] = AvARRAY (av)[1];
2525 AvARRAY (av)[1] = cb;
2526
2527 cb = av_shift (av);
2528
2529 api_ready (aTHX_ cb);
2530 sv_setiv (cb, 0); /* signal waiter */
2531 SvREFCNT_dec (cb);
2532
2533 --count;
2534 }
2535}
2536
2537static int
2538slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
2539{
2540 /* if we are about to throw, also stop waiting */
2541 return SvROK ((SV *)frame->data) && !CORO_THROW;
2542}
2543
2544static void
2545slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2546{
2547 AV *av = (AV *)SvRV (arg [0]);
2548
2549 if (SvIVX (AvARRAY (av)[0]))
2550 {
2551 SvIVX (AvARRAY (av)[0]) = 0;
2552 frame->prepare = prepare_nop;
2553 frame->check = slf_check_nop;
2554 }
2555 else
2556 {
2557 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */
2558
2559 av_push (av, waiter);
2560
2561 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2562 frame->prepare = prepare_schedule;
2563 frame->check = slf_check_signal_wait;
2564 }
2565}
2566
2567/*****************************************************************************/
2568/* Coro::AIO */
2569
2570#define CORO_MAGIC_type_aio PERL_MAGIC_ext
2571
2572/* helper storage struct */
2573struct io_state
2574{
2575 int errorno;
2576 I32 laststype; /* U16 in 5.10.0 */
2577 int laststatval;
2578 Stat_t statcache;
2579};
2580
2581static void
2582coro_aio_callback (pTHX_ CV *cv)
2583{
2584 dXSARGS;
2585 AV *state = (AV *)GENSUB_ARG;
2586 SV *coro = av_pop (state);
2587 SV *data_sv = newSV (sizeof (struct io_state));
2588
2589 av_extend (state, items - 1);
2590
2591 sv_upgrade (data_sv, SVt_PV);
2592 SvCUR_set (data_sv, sizeof (struct io_state));
2593 SvPOK_only (data_sv);
2594
2595 {
2596 struct io_state *data = (struct io_state *)SvPVX (data_sv);
2597
2598 data->errorno = errno;
2599 data->laststype = PL_laststype;
2600 data->laststatval = PL_laststatval;
2601 data->statcache = PL_statcache;
2602 }
2603
2604 /* now build the result vector out of all the parameters and the data_sv */
2605 {
2606 int i;
2607
2608 for (i = 0; i < items; ++i)
2609 av_push (state, SvREFCNT_inc_NN (ST (i)));
2610 }
2611
2612 av_push (state, data_sv);
2613
2614 api_ready (aTHX_ coro);
2615 SvREFCNT_dec (coro);
2616 SvREFCNT_dec ((AV *)state);
2617}
2618
2619static int
2620slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2621{
2622 AV *state = (AV *)frame->data;
2623
2624 /* if we are about to throw, return early */
2625 /* this does not cancel the aio request, but at least */
2626 /* it quickly returns */
2627 if (CORO_THROW)
2628 return 0;
2629
2630 /* one element that is an RV? repeat! */
2631 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))
2632 return 1;
2633
2634 /* restore status */
2635 {
2636 SV *data_sv = av_pop (state);
2637 struct io_state *data = (struct io_state *)SvPVX (data_sv);
2638
2639 errno = data->errorno;
2640 PL_laststype = data->laststype;
2641 PL_laststatval = data->laststatval;
2642 PL_statcache = data->statcache;
2643
2644 SvREFCNT_dec (data_sv);
2645 }
2646
2647 /* push result values */
2648 {
1850 dSP; 2649 dSP;
2650 int i;
1851 2651
2652 EXTEND (SP, AvFILLp (state) + 1);
2653 for (i = 0; i <= AvFILLp (state); ++i)
2654 PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i])));
2655
2656 PUTBACK;
2657 }
2658
2659 return 0;
2660}
2661
2662static void
2663slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2664{
2665 AV *state = (AV *)sv_2mortal ((SV *)newAV ());
2666 SV *coro_hv = SvRV (coro_current);
2667 struct coro *coro = SvSTATE_hv (coro_hv);
2668
2669 /* put our coroutine id on the state arg */
2670 av_push (state, SvREFCNT_inc_NN (coro_hv));
2671
2672 /* first see whether we have a non-zero priority and set it as AIO prio */
2673 if (coro->prio)
2674 {
2675 dSP;
2676
2677 static SV *prio_cv;
2678 static SV *prio_sv;
2679
2680 if (expect_false (!prio_cv))
2681 {
2682 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2683 prio_sv = newSViv (0);
2684 }
2685
2686 PUSHMARK (SP);
2687 sv_setiv (prio_sv, coro->prio);
2688 XPUSHs (prio_sv);
2689
2690 PUTBACK;
2691 call_sv (prio_cv, G_VOID | G_DISCARD);
2692 }
2693
2694 /* now call the original request */
2695 {
2696 dSP;
2697 CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj;
2698 int i;
2699
1852 PUSHMARK (SP); 2700 PUSHMARK (SP);
1853 2701
1854 EXTEND (SP, 3); 2702 /* first push all args to the stack */
1855 if (ssl_arg0) PUSHs (sv_2mortal (ssl_arg0)), ssl_arg0 = 0; 2703 EXTEND (SP, items + 1);
1856 if (ssl_arg1) PUSHs (sv_2mortal (ssl_arg1)), ssl_arg1 = 0;
1857 PUSHs ((SV *)CvGV (ssl_cv));
1858 2704
1859 RETURNOP (ssl_restore.op_first); 2705 for (i = 0; i < items; ++i)
1860} 2706 PUSHs (arg [i]);
1861 2707
1862#define OPpENTERSUB_SSL 15 /* the part of op_private entersub hopefully doesn't use */ 2708 /* now push the callback closure */
2709 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
1863 2710
1864/* declare prototype */ 2711 /* now call the AIO function - we assume our request is uncancelable */
1865XS(XS_Coro__State__set_stacklevel);
1866
1867/*
1868 * these not obviously related functions are all rolled into one
1869 * function to increase chances that they all will call transfer with the same
1870 * stack offset
1871 */
1872static OP *
1873pp_set_stacklevel (pTHX)
1874{
1875 dSP;
1876 struct transfer_args ta;
1877 SV **arg = PL_stack_base + TOPMARK + 1;
1878 int items = SP - arg; /* args without function object */
1879
1880 /* do a quick consistency check on the "function" object, and if it isn't */
1881 /* for us, divert to the real entersub */
1882 if (SvTYPE (*sp) != SVt_PVGV || CvXSUB (GvCV (*sp)) != XS_Coro__State__set_stacklevel)
1883 return PL_ppaddr[OP_ENTERSUB](aTHX);
1884
1885 /* pop args */
1886 SP = PL_stack_base + POPMARK;
1887
1888 if (!(PL_op->op_flags & OPf_STACKED))
1889 {
1890 /* ampersand-form of call, use @_ instead of stack */
1891 AV *av = GvAV (PL_defgv);
1892 arg = AvARRAY (av);
1893 items = AvFILLp (av) + 1;
1894 }
1895
1896 PUTBACK; 2712 PUTBACK;
1897 switch (PL_op->op_private & OPpENTERSUB_SSL) 2713 call_sv ((SV *)req, G_VOID | G_DISCARD);
1898 {
1899 case 0:
1900 prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (arg [0]));
1901 break;
1902
1903 case 1:
1904 if (items != 2)
1905 croak ("Coro::State::transfer (prev, next) expects two arguments, not %d.", items);
1906
1907 prepare_transfer (aTHX_ &ta, arg [0], arg [1]);
1908 break;
1909
1910 case 2:
1911 prepare_schedule (aTHX_ &ta);
1912 break;
1913
1914 case 3:
1915 prepare_cede (aTHX_ &ta);
1916 break;
1917
1918 case 4:
1919 prepare_cede_notself (aTHX_ &ta);
1920 break;
1921 } 2714 }
1922 2715
1923 TRANSFER (ta, 0); 2716 /* now that the requets is going, we loop toll we have a result */
1924 SPAGAIN; 2717 frame->data = (void *)state;
1925 2718 frame->prepare = prepare_schedule;
1926skip: 2719 frame->check = slf_check_aio_req;
1927 PUTBACK;
1928 SSL_TAIL;
1929 SPAGAIN;
1930 RETURN;
1931} 2720}
1932 2721
1933static void 2722static void
1934coro_ssl_patch (pTHX_ CV *cv, int ix, SV **args, int items) 2723coro_aio_req_xs (pTHX_ CV *cv)
1935{ 2724{
1936 assert (("FATAL: ssl call recursion in Coro module (please report)", PL_op->op_ppaddr != pp_set_stacklevel)); 2725 dXSARGS;
1937 2726
1938 assert (("FATAL: ssl call with illegal CV value", CvGV (cv))); 2727 CORO_EXECUTE_SLF_XS (slf_init_aio_req);
1939 ssl_cv = cv;
1940 2728
1941 /* we patch the op, and then re-run the whole call */ 2729 XSRETURN_EMPTY;
1942 /* we have to put some dummy argument on the stack for this to work */
1943 ssl_restore.op_next = (OP *)&ssl_restore;
1944 ssl_restore.op_type = OP_NULL;
1945 ssl_restore.op_ppaddr = pp_restore;
1946 ssl_restore.op_first = PL_op;
1947
1948 ssl_arg0 = items > 0 ? SvREFCNT_inc (args [0]) : 0;
1949 ssl_arg1 = items > 1 ? SvREFCNT_inc (args [1]) : 0;
1950
1951 PL_op->op_ppaddr = pp_set_stacklevel;
1952 PL_op->op_private = PL_op->op_private & ~OPpENTERSUB_SSL | ix; /* we potentially share our private flags with entersub */
1953
1954 PL_op = (OP *)&ssl_restore;
1955} 2730}
2731
2732/*****************************************************************************/
2733
2734#if CORO_CLONE
2735# include "clone.c"
2736#endif
1956 2737
1957MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 2738MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1958 2739
1959PROTOTYPES: DISABLE 2740PROTOTYPES: DISABLE
1960 2741
1961BOOT: 2742BOOT:
1962{ 2743{
1963#ifdef USE_ITHREADS 2744#ifdef USE_ITHREADS
1964 MUTEX_INIT (&coro_lock);
1965# if CORO_PTHREAD 2745# if CORO_PTHREAD
1966 coro_thx = PERL_GET_CONTEXT; 2746 coro_thx = PERL_GET_CONTEXT;
1967# endif 2747# endif
1968#endif 2748#endif
1969 BOOT_PAGESIZE; 2749 BOOT_PAGESIZE;
… …
1990 main_top_env = PL_top_env; 2770 main_top_env = PL_top_env;
1991 2771
1992 while (main_top_env->je_prev) 2772 while (main_top_env->je_prev)
1993 main_top_env = main_top_env->je_prev; 2773 main_top_env = main_top_env->je_prev;
1994 2774
2775 {
2776 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2777
2778 if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2779 hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2780
2781 if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2782 hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2783 }
2784
1995 coroapi.ver = CORO_API_VERSION; 2785 coroapi.ver = CORO_API_VERSION;
1996 coroapi.rev = CORO_API_REVISION; 2786 coroapi.rev = CORO_API_REVISION;
2787
1997 coroapi.transfer = api_transfer; 2788 coroapi.transfer = api_transfer;
2789
2790 coroapi.sv_state = SvSTATE_;
2791 coroapi.execute_slf = api_execute_slf;
2792 coroapi.prepare_nop = prepare_nop;
2793 coroapi.prepare_schedule = prepare_schedule;
2794 coroapi.prepare_cede = prepare_cede;
2795 coroapi.prepare_cede_notself = prepare_cede_notself;
1998 2796
1999 { 2797 {
2000 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); 2798 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2001 2799
2002 if (!svp) croak ("Time::HiRes is required"); 2800 if (!svp) croak ("Time::HiRes is required");
… …
2008 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 2806 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
2009} 2807}
2010 2808
2011SV * 2809SV *
2012new (char *klass, ...) 2810new (char *klass, ...)
2811 ALIAS:
2812 Coro::new = 1
2013 CODE: 2813 CODE:
2014{ 2814{
2015 struct coro *coro; 2815 struct coro *coro;
2016 MAGIC *mg; 2816 MAGIC *mg;
2017 HV *hv; 2817 HV *hv;
2818 CV *cb;
2018 int i; 2819 int i;
2820
2821 if (items > 1)
2822 {
2823 cb = coro_sv_2cv (aTHX_ ST (1));
2824
2825 if (!ix)
2826 {
2827 if (CvISXSUB (cb))
2828 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2829
2830 if (!CvROOT (cb))
2831 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2832 }
2833 }
2019 2834
2020 Newz (0, coro, 1, struct coro); 2835 Newz (0, coro, 1, struct coro);
2021 coro->args = newAV (); 2836 coro->args = newAV ();
2022 coro->flags = CF_NEW; 2837 coro->flags = CF_NEW;
2023 2838
… …
2028 coro->hv = hv = newHV (); 2843 coro->hv = hv = newHV ();
2029 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); 2844 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2030 mg->mg_flags |= MGf_DUP; 2845 mg->mg_flags |= MGf_DUP;
2031 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 2846 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2032 2847
2848 if (items > 1)
2849 {
2033 av_extend (coro->args, items - 1); 2850 av_extend (coro->args, items - 1 + ix - 1);
2851
2852 if (ix)
2853 {
2854 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2855 cb = cv_coro_run;
2856 }
2857
2858 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2859
2034 for (i = 1; i < items; i++) 2860 for (i = 2; i < items; i++)
2035 av_push (coro->args, newSVsv (ST (i))); 2861 av_push (coro->args, newSVsv (ST (i)));
2862 }
2036} 2863}
2037 OUTPUT: 2864 OUTPUT:
2038 RETVAL 2865 RETVAL
2039 2866
2040void 2867void
2041_set_stacklevel (...) 2868transfer (...)
2042 ALIAS: 2869 PROTOTYPE: $$
2043 Coro::State::transfer = 1 2870 CODE:
2044 Coro::schedule = 2 2871 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2045 Coro::cede = 3
2046 Coro::cede_notself = 4
2047 CODE:
2048 coro_ssl_patch (aTHX_ cv, ix, &ST (0), items);
2049 2872
2050bool 2873bool
2051_destroy (SV *coro_sv) 2874_destroy (SV *coro_sv)
2052 CODE: 2875 CODE:
2053 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); 2876 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
… …
2058_exit (int code) 2881_exit (int code)
2059 PROTOTYPE: $ 2882 PROTOTYPE: $
2060 CODE: 2883 CODE:
2061 _exit (code); 2884 _exit (code);
2062 2885
2886#if CORO_CLONE
2887
2888SV *
2889clone (Coro::State coro)
2890 CODE:
2891{
2892 struct coro *ncoro = coro_clone (coro);
2893 MAGIC *mg;
2894 /* TODO: too much duplication */
2895 ncoro->hv = newHV ();
2896 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
2897 mg->mg_flags |= MGf_DUP;
2898 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
2899}
2900 OUTPUT:
2901 RETVAL
2902
2903#endif
2904
2063int 2905int
2064cctx_stacksize (int new_stacksize = 0) 2906cctx_stacksize (int new_stacksize = 0)
2907 PROTOTYPE: ;$
2065 CODE: 2908 CODE:
2066 RETVAL = cctx_stacksize; 2909 RETVAL = cctx_stacksize;
2067 if (new_stacksize) 2910 if (new_stacksize)
2068 { 2911 {
2069 cctx_stacksize = new_stacksize; 2912 cctx_stacksize = new_stacksize;
… …
2072 OUTPUT: 2915 OUTPUT:
2073 RETVAL 2916 RETVAL
2074 2917
2075int 2918int
2076cctx_max_idle (int max_idle = 0) 2919cctx_max_idle (int max_idle = 0)
2920 PROTOTYPE: ;$
2077 CODE: 2921 CODE:
2078 RETVAL = cctx_max_idle; 2922 RETVAL = cctx_max_idle;
2079 if (max_idle > 1) 2923 if (max_idle > 1)
2080 cctx_max_idle = max_idle; 2924 cctx_max_idle = max_idle;
2081 OUTPUT: 2925 OUTPUT:
2082 RETVAL 2926 RETVAL
2083 2927
2084int 2928int
2085cctx_count () 2929cctx_count ()
2930 PROTOTYPE:
2086 CODE: 2931 CODE:
2087 RETVAL = cctx_count; 2932 RETVAL = cctx_count;
2088 OUTPUT: 2933 OUTPUT:
2089 RETVAL 2934 RETVAL
2090 2935
2091int 2936int
2092cctx_idle () 2937cctx_idle ()
2938 PROTOTYPE:
2093 CODE: 2939 CODE:
2094 RETVAL = cctx_idle; 2940 RETVAL = cctx_idle;
2095 OUTPUT: 2941 OUTPUT:
2096 RETVAL 2942 RETVAL
2097 2943
2098void 2944void
2099list () 2945list ()
2946 PROTOTYPE:
2100 PPCODE: 2947 PPCODE:
2101{ 2948{
2102 struct coro *coro; 2949 struct coro *coro;
2103 for (coro = coro_first; coro; coro = coro->next) 2950 for (coro = coro_first; coro; coro = coro->next)
2104 if (coro->hv) 2951 if (coro->hv)
… …
2166 3013
2167void 3014void
2168throw (Coro::State self, SV *throw = &PL_sv_undef) 3015throw (Coro::State self, SV *throw = &PL_sv_undef)
2169 PROTOTYPE: $;$ 3016 PROTOTYPE: $;$
2170 CODE: 3017 CODE:
3018{
3019 struct coro *current = SvSTATE_current;
3020 SV **throwp = self == current ? &CORO_THROW : &self->except;
2171 SvREFCNT_dec (self->throw); 3021 SvREFCNT_dec (*throwp);
2172 self->throw = SvOK (throw) ? newSVsv (throw) : 0; 3022 *throwp = SvOK (throw) ? newSVsv (throw) : 0;
3023}
2173 3024
2174void 3025void
2175api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3026api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3027 PROTOTYPE: $;$
3028 C_ARGS: aTHX_ coro, flags
2176 3029
2177SV * 3030SV *
2178has_cctx (Coro::State coro) 3031has_cctx (Coro::State coro)
2179 PROTOTYPE: $ 3032 PROTOTYPE: $
2180 CODE: 3033 CODE:
… …
2204 OUTPUT: 3057 OUTPUT:
2205 RETVAL 3058 RETVAL
2206 3059
2207void 3060void
2208force_cctx () 3061force_cctx ()
3062 PROTOTYPE:
2209 CODE: 3063 CODE:
2210 struct coro *coro = SvSTATE (coro_current);
2211 coro->cctx->idle_sp = 0; 3064 SvSTATE_current->cctx->idle_sp = 0;
2212 3065
2213void 3066void
2214swap_defsv (Coro::State self) 3067swap_defsv (Coro::State self)
2215 PROTOTYPE: $ 3068 PROTOTYPE: $
2216 ALIAS: 3069 ALIAS:
2217 swap_defav = 1 3070 swap_defav = 1
2218 CODE: 3071 CODE:
2219 if (!self->slot) 3072 if (!self->slot)
2220 croak ("cannot swap state with coroutine that has no saved state"); 3073 croak ("cannot swap state with coroutine that has no saved state,");
2221 else 3074 else
2222 { 3075 {
2223 SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); 3076 SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv);
2224 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3077 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2225 3078
2226 SV *tmp = *src; *src = *dst; *dst = tmp; 3079 SV *tmp = *src; *src = *dst; *dst = tmp;
2227 } 3080 }
2228 3081
3082
2229MODULE = Coro::State PACKAGE = Coro 3083MODULE = Coro::State PACKAGE = Coro
2230 3084
2231BOOT: 3085BOOT:
2232{ 3086{
2233 int i; 3087 int i;
2234 3088
2235 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2236 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3089 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2237 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3090 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2238 3091 cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);
3092 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2239 coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); 3093 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2240 SvREADONLY_on (coro_current); 3094 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3095 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3096 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3097
3098 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3099 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3100 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3101 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2241 3102
2242 coro_stash = gv_stashpv ("Coro", TRUE); 3103 coro_stash = gv_stashpv ("Coro", TRUE);
2243 3104
2244 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3105 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
2245 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3106 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
… …
2253 3114
2254 { 3115 {
2255 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3116 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2256 3117
2257 coroapi.schedule = api_schedule; 3118 coroapi.schedule = api_schedule;
3119 coroapi.schedule_to = api_schedule_to;
2258 coroapi.cede = api_cede; 3120 coroapi.cede = api_cede;
2259 coroapi.cede_notself = api_cede_notself; 3121 coroapi.cede_notself = api_cede_notself;
2260 coroapi.ready = api_ready; 3122 coroapi.ready = api_ready;
2261 coroapi.is_ready = api_is_ready; 3123 coroapi.is_ready = api_is_ready;
2262 coroapi.nready = &coro_nready; 3124 coroapi.nready = coro_nready;
2263 coroapi.current = coro_current; 3125 coroapi.current = coro_current;
2264 3126
2265 GCoroAPI = &coroapi; 3127 /*GCoroAPI = &coroapi;*/
2266 sv_setiv (sv, (IV)&coroapi); 3128 sv_setiv (sv, (IV)&coroapi);
2267 SvREADONLY_on (sv); 3129 SvREADONLY_on (sv);
2268 } 3130 }
2269} 3131}
3132
3133void
3134terminate (...)
3135 CODE:
3136 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3137
3138void
3139schedule (...)
3140 CODE:
3141 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3142
3143void
3144schedule_to (...)
3145 CODE:
3146 CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
3147
3148void
3149cede_to (...)
3150 CODE:
3151 CORO_EXECUTE_SLF_XS (slf_init_cede_to);
3152
3153void
3154cede (...)
3155 CODE:
3156 CORO_EXECUTE_SLF_XS (slf_init_cede);
3157
3158void
3159cede_notself (...)
3160 CODE:
3161 CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3162
3163void
3164_cancel (Coro::State self)
3165 CODE:
3166 coro_state_destroy (aTHX_ self);
3167 coro_call_on_destroy (aTHX_ self);
2270 3168
2271void 3169void
2272_set_current (SV *current) 3170_set_current (SV *current)
2273 PROTOTYPE: $ 3171 PROTOTYPE: $
2274 CODE: 3172 CODE:
… …
2277 3175
2278void 3176void
2279_set_readyhook (SV *hook) 3177_set_readyhook (SV *hook)
2280 PROTOTYPE: $ 3178 PROTOTYPE: $
2281 CODE: 3179 CODE:
2282 LOCK;
2283 SvREFCNT_dec (coro_readyhook); 3180 SvREFCNT_dec (coro_readyhook);
2284 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3181 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
2285 UNLOCK;
2286 3182
2287int 3183int
2288prio (Coro::State coro, int newprio = 0) 3184prio (Coro::State coro, int newprio = 0)
3185 PROTOTYPE: $;$
2289 ALIAS: 3186 ALIAS:
2290 nice = 1 3187 nice = 1
2291 CODE: 3188 CODE:
2292{ 3189{
2293 RETVAL = coro->prio; 3190 RETVAL = coro->prio;
… …
2308 3205
2309SV * 3206SV *
2310ready (SV *self) 3207ready (SV *self)
2311 PROTOTYPE: $ 3208 PROTOTYPE: $
2312 CODE: 3209 CODE:
2313 RETVAL = boolSV (api_ready (self)); 3210 RETVAL = boolSV (api_ready (aTHX_ self));
2314 OUTPUT: 3211 OUTPUT:
2315 RETVAL 3212 RETVAL
2316 3213
2317int 3214int
2318nready (...) 3215nready (...)
… …
2320 CODE: 3217 CODE:
2321 RETVAL = coro_nready; 3218 RETVAL = coro_nready;
2322 OUTPUT: 3219 OUTPUT:
2323 RETVAL 3220 RETVAL
2324 3221
2325# for async_pool speedup
2326void 3222void
2327_pool_1 (SV *cb) 3223_pool_handler (...)
2328 CODE: 3224 CODE:
2329{ 3225 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
2330 struct coro *coro = SvSTATE (coro_current);
2331 HV *hv = (HV *)SvRV (coro_current);
2332 AV *defav = GvAV (PL_defgv);
2333 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2334 AV *invoke_av;
2335 int i, len;
2336 3226
2337 if (!invoke) 3227void
3228async_pool (SV *cv, ...)
3229 PROTOTYPE: &@
3230 PPCODE:
3231{
3232 HV *hv = (HV *)av_pop (av_async_pool);
3233 AV *av = newAV ();
3234 SV *cb = ST (0);
3235 int i;
3236
3237 av_extend (av, items - 2);
3238 for (i = 1; i < items; ++i)
3239 av_push (av, SvREFCNT_inc_NN (ST (i)));
3240
3241 if ((SV *)hv == &PL_sv_undef)
2338 { 3242 {
2339 SV *old = PL_diehook; 3243 PUSHMARK (SP);
2340 PL_diehook = 0; 3244 EXTEND (SP, 2);
2341 SvREFCNT_dec (old); 3245 PUSHs (sv_Coro);
2342 croak ("\3async_pool terminate\2\n"); 3246 PUSHs ((SV *)cv_pool_handler);
3247 PUTBACK;
3248 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3249 SPAGAIN;
3250
3251 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
2343 } 3252 }
2344 3253
2345 SvREFCNT_dec (coro->saved_deffh);
2346 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2347
2348 hv_store (hv, "desc", sizeof ("desc") - 1,
2349 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2350
2351 invoke_av = (AV *)SvRV (invoke);
2352 len = av_len (invoke_av);
2353
2354 sv_setsv (cb, AvARRAY (invoke_av)[0]);
2355
2356 if (len > 0)
2357 { 3254 {
2358 av_fill (defav, len - 1); 3255 struct coro *coro = SvSTATE_hv (hv);
2359 for (i = 0; i < len; ++i) 3256
2360 av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); 3257 assert (!coro->invoke_cb);
3258 assert (!coro->invoke_av);
3259 coro->invoke_cb = SvREFCNT_inc (cb);
3260 coro->invoke_av = av;
2361 } 3261 }
2362 3262
3263 api_ready (aTHX_ (SV *)hv);
3264
3265 if (GIMME_V != G_VOID)
3266 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3267 else
2363 SvREFCNT_dec (invoke); 3268 SvREFCNT_dec (hv);
2364} 3269}
2365 3270
2366void 3271SV *
2367_pool_2 (SV *cb) 3272rouse_cb ()
3273 PROTOTYPE:
2368 CODE: 3274 CODE:
2369{ 3275 RETVAL = coro_new_rouse_cb (aTHX);
2370 struct coro *coro = SvSTATE (coro_current);
2371
2372 sv_setsv (cb, &PL_sv_undef);
2373
2374 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2375 coro->saved_deffh = 0;
2376
2377 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2378 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2379 {
2380 SV *old = PL_diehook;
2381 PL_diehook = 0;
2382 SvREFCNT_dec (old);
2383 croak ("\3async_pool terminate\2\n");
2384 }
2385
2386 av_clear (GvAV (PL_defgv));
2387 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
2388 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
2389
2390 coro->prio = 0;
2391
2392 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
2393 api_trace (coro_current, 0);
2394
2395 av_push (av_async_pool, newSVsv (coro_current));
2396}
2397
2398#if 0
2399
2400void
2401_generator_call (...)
2402 PROTOTYPE: @
2403 PPCODE:
2404 fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
2405 xxxx
2406 abort ();
2407
2408SV *
2409gensub (SV *sub, ...)
2410 PROTOTYPE: &;@
2411 CODE:
2412{
2413 struct coro *coro;
2414 MAGIC *mg;
2415 CV *xcv;
2416 CV *ncv = (CV *)newSV_type (SVt_PVCV);
2417 int i;
2418
2419 CvGV (ncv) = CvGV (cv);
2420 CvFILE (ncv) = CvFILE (cv);
2421
2422 Newz (0, coro, 1, struct coro);
2423 coro->args = newAV ();
2424 coro->flags = CF_NEW;
2425
2426 av_extend (coro->args, items - 1);
2427 for (i = 1; i < items; i++)
2428 av_push (coro->args, newSVsv (ST (i)));
2429
2430 CvISXSUB_on (ncv);
2431 CvXSUBANY (ncv).any_ptr = (void *)coro;
2432
2433 xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV));
2434
2435 CvXSUB (ncv) = CvXSUB (xcv);
2436 CvANON_on (ncv);
2437
2438 mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0);
2439 RETVAL = newRV_noinc ((SV *)ncv);
2440}
2441 OUTPUT: 3276 OUTPUT:
2442 RETVAL 3277 RETVAL
2443 3278
2444#endif
2445
2446
2447MODULE = Coro::State PACKAGE = Coro::AIO
2448
2449void 3279void
2450_get_state (SV *self) 3280rouse_wait (...)
3281 PROTOTYPE: ;$
2451 PPCODE: 3282 PPCODE:
2452{ 3283 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
2453 AV *defav = GvAV (PL_defgv);
2454 AV *av = newAV ();
2455 int i;
2456 SV *data_sv = newSV (sizeof (struct io_state));
2457 struct io_state *data = (struct io_state *)SvPVX (data_sv);
2458 SvCUR_set (data_sv, sizeof (struct io_state));
2459 SvPOK_only (data_sv);
2460 3284
2461 data->errorno = errno;
2462 data->laststype = PL_laststype;
2463 data->laststatval = PL_laststatval;
2464 data->statcache = PL_statcache;
2465 3285
2466 av_extend (av, AvFILLp (defav) + 1 + 1); 3286MODULE = Coro::State PACKAGE = PerlIO::cede
2467 3287
2468 for (i = 0; i <= AvFILLp (defav); ++i) 3288BOOT:
2469 av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); 3289 PerlIO_define_layer (aTHX_ &PerlIO_cede);
2470 3290
2471 av_push (av, data_sv);
2472 3291
2473 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); 3292MODULE = Coro::State PACKAGE = Coro::Semaphore
2474 3293
2475 api_ready (self); 3294SV *
2476} 3295new (SV *klass, SV *count = 0)
3296 CODE:
3297 RETVAL = sv_bless (
3298 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),
3299 GvSTASH (CvGV (cv))
3300 );
3301 OUTPUT:
3302 RETVAL
3303
3304# helper for Coro::Channel
3305SV *
3306_alloc (int count)
3307 CODE:
3308 RETVAL = coro_waitarray_new (aTHX_ count);
3309 OUTPUT:
3310 RETVAL
3311
3312SV *
3313count (SV *self)
3314 CODE:
3315 RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]);
3316 OUTPUT:
3317 RETVAL
2477 3318
2478void 3319void
2479_set_state (SV *state) 3320up (SV *self, int adjust = 1)
2480 PROTOTYPE: $ 3321 ALIAS:
3322 adjust = 1
3323 CODE:
3324 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
3325
3326void
3327down (...)
3328 CODE:
3329 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
3330
3331void
3332wait (...)
3333 CODE:
3334 CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
3335
3336void
3337try (SV *self)
3338 PPCODE:
3339{
3340 AV *av = (AV *)SvRV (self);
3341 SV *count_sv = AvARRAY (av)[0];
3342 IV count = SvIVX (count_sv);
3343
3344 if (count > 0)
3345 {
3346 --count;
3347 SvIVX (count_sv) = count;
3348 XSRETURN_YES;
3349 }
3350 else
3351 XSRETURN_NO;
3352}
3353
3354void
3355waiters (SV *self)
3356 PPCODE:
3357{
3358 AV *av = (AV *)SvRV (self);
3359 int wcount = AvFILLp (av) + 1 - 1;
3360
3361 if (GIMME_V == G_SCALAR)
3362 XPUSHs (sv_2mortal (newSViv (wcount)));
3363 else
3364 {
3365 int i;
3366 EXTEND (SP, wcount);
3367 for (i = 1; i <= wcount; ++i)
3368 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3369 }
3370}
3371
3372MODULE = Coro::State PACKAGE = Coro::Signal
3373
3374SV *
3375new (SV *klass)
2481 PPCODE: 3376 CODE:
3377 RETVAL = sv_bless (
3378 coro_waitarray_new (aTHX_ 0),
3379 GvSTASH (CvGV (cv))
3380 );
3381 OUTPUT:
3382 RETVAL
3383
3384void
3385wait (...)
3386 CODE:
3387 CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
3388
3389void
3390broadcast (SV *self)
3391 CODE:
2482{ 3392{
2483 AV *av = (AV *)SvRV (state); 3393 AV *av = (AV *)SvRV (self);
2484 struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); 3394 coro_signal_wake (aTHX_ av, AvFILLp (av));
2485 int i; 3395}
2486 3396
2487 errno = data->errorno; 3397void
2488 PL_laststype = data->laststype; 3398send (SV *self)
2489 PL_laststatval = data->laststatval; 3399 CODE:
2490 PL_statcache = data->statcache; 3400{
3401 AV *av = (AV *)SvRV (self);
2491 3402
2492 EXTEND (SP, AvFILLp (av)); 3403 if (AvFILLp (av))
2493 for (i = 0; i < AvFILLp (av); ++i) 3404 coro_signal_wake (aTHX_ av, 1);
2494 PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); 3405 else
3406 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
2495} 3407}
3408
3409IV
3410awaited (SV *self)
3411 CODE:
3412 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3413 OUTPUT:
3414 RETVAL
2496 3415
2497 3416
2498MODULE = Coro::State PACKAGE = Coro::AnyEvent 3417MODULE = Coro::State PACKAGE = Coro::AnyEvent
2499 3418
2500BOOT: 3419BOOT:
2501 sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); 3420 sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
2502 3421
2503SV * 3422void
2504_schedule (...) 3423_schedule (...)
2505 PROTOTYPE: @
2506 CODE: 3424 CODE:
2507{ 3425{
2508 static int incede; 3426 static int incede;
2509 3427
2510 api_cede_notself (); 3428 api_cede_notself (aTHX);
2511 3429
2512 ++incede; 3430 ++incede;
2513 while (coro_nready >= incede && api_cede ()) 3431 while (coro_nready >= incede && api_cede (aTHX))
2514 ; 3432 ;
2515 3433
2516 sv_setsv (sv_activity, &PL_sv_undef); 3434 sv_setsv (sv_activity, &PL_sv_undef);
2517 if (coro_nready >= incede) 3435 if (coro_nready >= incede)
2518 { 3436 {
2519 PUSHMARK (SP); 3437 PUSHMARK (SP);
2520 PUTBACK; 3438 PUTBACK;
2521 call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); 3439 call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2522 SPAGAIN;
2523 } 3440 }
2524 3441
2525 --incede; 3442 --incede;
2526} 3443}
2527 3444
2528 3445
2529MODULE = Coro::State PACKAGE = PerlIO::cede 3446MODULE = Coro::State PACKAGE = Coro::AIO
2530 3447
2531BOOT: 3448void
2532 PerlIO_define_layer (aTHX_ &PerlIO_cede); 3449_register (char *target, char *proto, SV *req)
3450 CODE:
3451{
3452 CV *req_cv = coro_sv_2cv (aTHX_ req);
3453 /* newXSproto doesn't return the CV on 5.8 */
3454 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3455 sv_setpv ((SV *)slf_cv, proto);
3456 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3457}
2533 3458

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