[ViewVC] Diff of: cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.312 by root, Thu Nov 20 03:10:30 2008 UTC vs.
Revision 1.358 by root, Mon Jun 29 04:30:25 2009 UTC

…		…
98	# define newSV(l) NEWSV(0,l)	98	# define newSV(l) NEWSV(0,l)
99	#endif	99	#endif
100	#ifndef CvISXSUB_on	100	#ifndef CvISXSUB_on
101	# define CvISXSUB_on(cv) (void)cv	101	# define CvISXSUB_on(cv) (void)cv
102	#endif	102	#endif
		103	#ifndef CvISXSUB
		104	# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
		105	#endif
		106	#ifndef Newx
		107	# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
		108	#endif
103		109
104	/* 5.8.7 */	110	/* 5.8.7 */
105	#ifndef SvRV_set	111	#ifndef SvRV_set
106	# define SvRV_set(s,v) SvRV(s) = (v)	112	# define SvRV_set(s,v) SvRV(s) = (v)
107	#endif	113	#endif
…		…
127	#else	133	#else
128	# define dSTACKLEVEL volatile void *stacklevel	134	# define dSTACKLEVEL volatile void *stacklevel
129	# define STACKLEVEL ((void *)&stacklevel)	135	# define STACKLEVEL ((void *)&stacklevel)
130	#endif	136	#endif
131		137
132	#define IN_DESTRUCT (PL_main_cv == Nullcv)	138	#define IN_DESTRUCT PL_dirty
133		139
134	#if __GNUC__ >= 3	140	#if __GNUC__ >= 3
135	# define attribute(x) __attribute__(x)	141	# define attribute(x) __attribute__(x)
136	# define expect(expr,value) __builtin_expect ((expr),(value))	142	# define expect(expr,value) __builtin_expect ((expr), (value))
137	# define INLINE static inline	143	# define INLINE static inline
138	#else	144	#else
139	# define attribute(x)	145	# define attribute(x)
140	# define expect(expr,value) (expr)	146	# define expect(expr,value) (expr)
141	# define INLINE static	147	# define INLINE static
…		…
150	#define GCoroAPI (&coroapi) /* very sneaky */	156	#define GCoroAPI (&coroapi) /* very sneaky */
151		157
152	#ifdef USE_ITHREADS	158	#ifdef USE_ITHREADS
153	# if CORO_PTHREAD	159	# if CORO_PTHREAD
154	static void *coro_thx;	160	static void *coro_thx;
		161	# endif
		162	#endif
		163
		164	#ifdef __linux
		165	# include <time.h> /* for timespec */
		166	# include <syscall.h> /* for SYS_* */
		167	# ifdef SYS_clock_gettime
		168	# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		169	# define CORO_CLOCK_MONOTONIC 1
		170	# define CORO_CLOCK_THREAD_CPUTIME_ID 3
155	# endif	171	# endif
156	#endif	172	#endif
157		173
158	static double (nvtime)(); / so why doesn't it take void? */	174	static double (nvtime)(); / so why doesn't it take void? */
159		175
…		…
167	static AV main_mainstack; / used to differentiate between $main and others */	183	static AV main_mainstack; / used to differentiate between $main and others */
168	static JMPENV *main_top_env;	184	static JMPENV *main_top_env;
169	static HV coro_state_stash, coro_stash;	185	static HV coro_state_stash, coro_stash;
170	static volatile SV coro_mortal; / will be freed/thrown after next transfer */	186	static volatile SV coro_mortal; / will be freed/thrown after next transfer */
171		187
		188	static AV av_destroy; / destruction queue */
		189	static SV sv_manager; / the manager coro */
		190	static SV sv_idle; / $Coro::idle */
		191
172	static GV irsgv; / $/ */	192	static GV irsgv; / $/ */
173	static GV stdoutgv; / STDOUT /	193	static GV stdoutgv; / STDOUT /
174	static SV *rv_diehook;	194	static SV *rv_diehook;
175	static SV *rv_warnhook;	195	static SV *rv_warnhook;
176	static HV hv_sig; / %SIG */	196	static HV hv_sig; / %SIG */
177		197
178	/* async_pool helper stuff */	198	/* async_pool helper stuff */
179	static SV *sv_pool_rss;	199	static SV *sv_pool_rss;
180	static SV *sv_pool_size;	200	static SV *sv_pool_size;
181	static SV *sv_async_pool_idle;	201	static SV sv_async_pool_idle; / description string */
182	static AV *av_async_pool;	202	static AV av_async_pool; / idle pool */
183	static SV *sv_Coro;	203	static SV sv_Coro; / class string */
184	static CV *cv_pool_handler;	204	static CV *cv_pool_handler;
185	static CV *cv_coro_new;	205	static CV *cv_coro_state_new;
186		206
187	/* Coro::AnyEvent */	207	/* Coro::AnyEvent */
188	static SV *sv_activity;	208	static SV *sv_activity;
189		209
190	static struct coro_cctx *cctx_first;	210	static struct coro_cctx *cctx_first;
…		…
219	int valgrind_id;	239	int valgrind_id;
220	#endif	240	#endif
221	unsigned char flags;	241	unsigned char flags;
222	} coro_cctx;	242	} coro_cctx;
223		243
		244	coro_cctx cctx_current; / the currently running cctx */
		245
		246	/*****************************************************************************/
		247
224	enum {	248	enum {
225	CF_RUNNING = 0x0001, /* coroutine is running */	249	CF_RUNNING = 0x0001, /* coroutine is running */
226	CF_READY = 0x0002, /* coroutine is ready */	250	CF_READY = 0x0002, /* coroutine is ready */
227	CF_NEW = 0x0004, /* has never been switched to */	251	CF_NEW = 0x0004, /* has never been switched to */
228	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	252	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
		253	CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
229	};	254	};
230		255
231	/* the structure where most of the perl state is stored, overlaid on the cxstack */	256	/* the structure where most of the perl state is stored, overlaid on the cxstack */
232	typedef struct	257	typedef struct
233	{	258	{
234	SV *defsv;	259	SV *defsv;
235	AV *defav;	260	AV *defav;
236	SV *errsv;	261	SV *errsv;
237	SV *irsgv;	262	SV *irsgv;
		263	HV *hinthv;
238	#define VAR(name,type) type name;	264	#define VAR(name,type) type name;
239	# include "state.h"	265	# include "state.h"
240	#undef VAR	266	#undef VAR
241	} perl_slots;	267	} perl_slots;
242		268
…		…
244		270
245	/* this is a structure representing a perl-level coroutine */	271	/* this is a structure representing a perl-level coroutine */
246	struct coro {	272	struct coro {
247	/* the C coroutine allocated to this perl coroutine, if any */	273	/* the C coroutine allocated to this perl coroutine, if any */
248	coro_cctx *cctx;	274	coro_cctx *cctx;
		275
		276	/* ready queue */
		277	struct coro *next_ready;
249		278
250	/* state data */	279	/* state data */
251	struct CoroSLF slf_frame; /* saved slf frame */	280	struct CoroSLF slf_frame; /* saved slf frame */
252	AV *mainstack;	281	AV *mainstack;
253	perl_slots slot; / basically the saved sp */	282	perl_slots slot; / basically the saved sp */
…		…
270	/* async_pool */	299	/* async_pool */
271	SV *saved_deffh;	300	SV *saved_deffh;
272	SV *invoke_cb;	301	SV *invoke_cb;
273	AV *invoke_av;	302	AV *invoke_av;
274		303
		304	/* on_enter/on_leave */
		305	AV *on_enter;
		306	AV *on_leave;
		307
275	/* linked list */	308	/* linked list */
276	struct coro next, prev;	309	struct coro next, prev;
277	};	310	};
278		311
279	typedef struct coro *Coro__State;	312	typedef struct coro *Coro__State;
…		…
284	/* the mainr easonw e don't support windows process emulation */	317	/* the mainr easonw e don't support windows process emulation */
285	static struct CoroSLF slf_frame; /* the current slf frame */	318	static struct CoroSLF slf_frame; /* the current slf frame */
286		319
287	/ Coro ******************************************************************/	320	/ Coro ******************************************************************/
288		321
289	#define PRIO_MAX 3	322	#define CORO_PRIO_MAX 3
290	#define PRIO_HIGH 1	323	#define CORO_PRIO_HIGH 1
291	#define PRIO_NORMAL 0	324	#define CORO_PRIO_NORMAL 0
292	#define PRIO_LOW -1	325	#define CORO_PRIO_LOW -1
293	#define PRIO_IDLE -3	326	#define CORO_PRIO_IDLE -3
294	#define PRIO_MIN -4	327	#define CORO_PRIO_MIN -4
295		328
296	/* for Coro.pm */	329	/* for Coro.pm */
297	static SV *coro_current;	330	static SV *coro_current;
298	static SV *coro_readyhook;	331	static SV *coro_readyhook;
299	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	332	static struct coro coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; / head\|tail */
300	static CV cv_coro_run, cv_coro_terminate;	333	static CV cv_coro_run, cv_coro_terminate;
301	static struct coro *coro_first;	334	static struct coro *coro_first;
302	#define coro_nready coroapi.nready	335	#define coro_nready coroapi.nready
303		336
304	/ lowlevel stuff ********************************************************/	337	/ lowlevel stuff ********************************************************/
…		…
337	INLINE CV *	370	INLINE CV *
338	coro_sv_2cv (pTHX_ SV *sv)	371	coro_sv_2cv (pTHX_ SV *sv)
339	{	372	{
340	HV *st;	373	HV *st;
341	GV *gvp;	374	GV *gvp;
342	return sv_2cv (sv, &st, &gvp, 0);	375	CV *cv = sv_2cv (sv, &st, &gvp, 0);
		376
		377	if (!cv)
		378	croak ("code reference expected");
		379
		380	return cv;
343	}	381	}
		382
		383	/*****************************************************************************/
		384	/* magic glue */
		385
		386	#define CORO_MAGIC_type_cv 26
		387	#define CORO_MAGIC_type_state PERL_MAGIC_ext
		388
		389	#define CORO_MAGIC_NN(sv, type) \
		390	(expect_true (SvMAGIC (sv)->mg_type == type) \
		391	? SvMAGIC (sv) \
		392	: mg_find (sv, type))
		393
		394	#define CORO_MAGIC(sv, type) \
		395	(expect_true (SvMAGIC (sv)) \
		396	? CORO_MAGIC_NN (sv, type) \
		397	: 0)
		398
		399	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		400	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
		401
		402	INLINE struct coro *
		403	SvSTATE_ (pTHX_ SV *coro)
		404	{
		405	HV *stash;
		406	MAGIC *mg;
		407
		408	if (SvROK (coro))
		409	coro = SvRV (coro);
		410
		411	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		412	croak ("Coro::State object required");
		413
		414	stash = SvSTASH (coro);
		415	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		416	{
		417	/* very slow, but rare, check */
		418	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		419	croak ("Coro::State object required");
		420	}
		421
		422	mg = CORO_MAGIC_state (coro);
		423	return (struct coro *)mg->mg_ptr;
		424	}
		425
		426	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		427
		428	/* faster than SvSTATE, but expects a coroutine hv */
		429	#define SvSTATE_hv(hv) ((struct coro )CORO_MAGIC_NN ((SV )hv, CORO_MAGIC_type_state)->mg_ptr)
		430	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
		431
		432	/*****************************************************************************/
		433	/* padlist management and caching */
344		434
345	static AV *	435	static AV *
346	coro_clone_padlist (pTHX_ CV *cv)	436	coro_derive_padlist (pTHX_ CV *cv)
347	{	437	{
348	AV *padlist = CvPADLIST (cv);	438	AV *padlist = CvPADLIST (cv);
349	AV newpadlist, newpad;	439	AV newpadlist, newpad;
350		440
351	newpadlist = newAV ();	441	newpadlist = newAV ();
…		…
356	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	446	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
357	#endif	447	#endif
358	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	448	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
359	--AvFILLp (padlist);	449	--AvFILLp (padlist);
360		450
361	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));	451	av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
362	av_store (newpadlist, 1, (SV *)newpad);	452	av_store (newpadlist, 1, (SV *)newpad);
363		453
364	return newpadlist;	454	return newpadlist;
365	}	455	}
366		456
367	static void	457	static void
368	free_padlist (pTHX_ AV *padlist)	458	free_padlist (pTHX_ AV *padlist)
369	{	459	{
370	/* may be during global destruction */	460	/* may be during global destruction */
371	if (SvREFCNT (padlist))	461	if (!IN_DESTRUCT)
372	{	462	{
373	I32 i = AvFILLp (padlist);	463	I32 i = AvFILLp (padlist);
374	while (i >= 0)	464
		465	while (i > 0) /* special-case index 0 */
375	{	466	{
376	SV **svp = av_fetch (padlist, i--, FALSE);	467	/* we try to be extra-careful here */
377	if (svp)	468	AV av = (AV )AvARRAY (padlist)[i--];
378	{	469	I32 j = AvFILLp (av);
379	SV *sv;	470
380	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))	471	while (j >= 0)
		472	SvREFCNT_dec (AvARRAY (av)[j--]);
		473
		474	AvFILLp (av) = -1;
381	SvREFCNT_dec (sv);	475	SvREFCNT_dec (av);
382
383	SvREFCNT_dec (*svp);
384	}
385	}	476	}
386		477
		478	SvREFCNT_dec (AvARRAY (padlist)[0]);
		479
		480	AvFILLp (padlist) = -1;
387	SvREFCNT_dec ((SV*)padlist);	481	SvREFCNT_dec ((SV*)padlist);
388	}	482	}
389	}	483	}
390		484
391	static int	485	static int
392	coro_cv_free (pTHX_ SV sv, MAGIC mg)	486	coro_cv_free (pTHX_ SV sv, MAGIC mg)
393	{	487	{
394	AV *padlist;	488	AV *padlist;
395	AV av = (AV )mg->mg_obj;	489	AV av = (AV )mg->mg_obj;
		490
		491	/* perl manages to free our internal AV and _then_ call us */
		492	if (IN_DESTRUCT)
		493	return;
396		494
397	/* casting is fun. */	495	/* casting is fun. */
398	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	496	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
399	free_padlist (aTHX_ padlist);	497	free_padlist (aTHX_ padlist);
400		498
401	SvREFCNT_dec (av); /* sv_magicext increased the refcount */	499	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
402		500
403	return 0;	501	return 0;
404	}	502	}
405
406	#define CORO_MAGIC_type_cv 26
407	#define CORO_MAGIC_type_state PERL_MAGIC_ext
408		503
409	static MGVTBL coro_cv_vtbl = {	504	static MGVTBL coro_cv_vtbl = {
410	0, 0, 0, 0,	505	0, 0, 0, 0,
411	coro_cv_free	506	coro_cv_free
412	};	507	};
413
414	#define CORO_MAGIC_NN(sv, type) \
415	(expect_true (SvMAGIC (sv)->mg_type == type) \
416	? SvMAGIC (sv) \
417	: mg_find (sv, type))
418
419	#define CORO_MAGIC(sv, type) \
420	(expect_true (SvMAGIC (sv)) \
421	? CORO_MAGIC_NN (sv, type) \
422	: 0)
423
424	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
425	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
426
427	INLINE struct coro *
428	SvSTATE_ (pTHX_ SV *coro)
429	{
430	HV *stash;
431	MAGIC *mg;
432
433	if (SvROK (coro))
434	coro = SvRV (coro);
435
436	if (expect_false (SvTYPE (coro) != SVt_PVHV))
437	croak ("Coro::State object required");
438
439	stash = SvSTASH (coro);
440	if (expect_false (stash != coro_stash && stash != coro_state_stash))
441	{
442	/* very slow, but rare, check */
443	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
444	croak ("Coro::State object required");
445	}
446
447	mg = CORO_MAGIC_state (coro);
448	return (struct coro *)mg->mg_ptr;
449	}
450
451	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
452
453	/* faster than SvSTATE, but expects a coroutine hv */
454	#define SvSTATE_hv(hv) ((struct coro )CORO_MAGIC_NN ((SV )hv, CORO_MAGIC_type_state)->mg_ptr)
455	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
456		508
457	/* the next two functions merely cache the padlists */	509	/* the next two functions merely cache the padlists */
458	static void	510	static void
459	get_padlist (pTHX_ CV *cv)	511	get_padlist (pTHX_ CV *cv)
460	{	512	{
…		…
471	CV *cp = Perl_cv_clone (aTHX_ cv);	523	CV *cp = Perl_cv_clone (aTHX_ cv);
472	CvPADLIST (cv) = CvPADLIST (cp);	524	CvPADLIST (cv) = CvPADLIST (cp);
473	CvPADLIST (cp) = 0;	525	CvPADLIST (cp) = 0;
474	SvREFCNT_dec (cp);	526	SvREFCNT_dec (cp);
475	#else	527	#else
476	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	528	CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
477	#endif	529	#endif
478	}	530	}
479	}	531	}
480		532
481	static void	533	static void
…		…
488	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);	540	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
489		541
490	av = (AV *)mg->mg_obj;	542	av = (AV *)mg->mg_obj;
491		543
492	if (expect_false (AvFILLp (av) >= AvMAX (av)))	544	if (expect_false (AvFILLp (av) >= AvMAX (av)))
493	av_extend (av, AvMAX (av) + 1);	545	av_extend (av, AvFILLp (av) + 1);
494		546
495	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	547	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
496	}	548	}
497		549
498	/ load & save, init *****************************************************/	550	/ load & save, init *****************************************************/
		551
		552	static void
		553	on_enterleave_call (pTHX_ SV *cb);
499		554
500	static void	555	static void
501	load_perl (pTHX_ Coro__State c)	556	load_perl (pTHX_ Coro__State c)
502	{	557	{
503	perl_slots *slot = c->slot;	558	perl_slots *slot = c->slot;
504	c->slot = 0;	559	c->slot = 0;
505		560
506	PL_mainstack = c->mainstack;	561	PL_mainstack = c->mainstack;
507		562
508	GvSV (PL_defgv) = slot->defsv;	563	GvSV (PL_defgv) = slot->defsv;
509	GvAV (PL_defgv) = slot->defav;	564	GvAV (PL_defgv) = slot->defav;
510	GvSV (PL_errgv) = slot->errsv;	565	GvSV (PL_errgv) = slot->errsv;
511	GvSV (irsgv) = slot->irsgv;	566	GvSV (irsgv) = slot->irsgv;
		567	GvHV (PL_hintgv) = slot->hinthv;
512		568
513	#define VAR(name,type) PL_ ## name = slot->name;	569	#define VAR(name,type) PL_ ## name = slot->name;
514	# include "state.h"	570	# include "state.h"
515	#undef VAR	571	#undef VAR
516		572
…		…
530	PUTBACK;	586	PUTBACK;
531	}	587	}
532		588
533	slf_frame = c->slf_frame;	589	slf_frame = c->slf_frame;
534	CORO_THROW = c->except;	590	CORO_THROW = c->except;
		591
		592	if (expect_false (c->on_enter))
		593	{
		594	int i;
		595
		596	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
		597	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
		598	}
535	}	599	}
536		600
537	static void	601	static void
538	save_perl (pTHX_ Coro__State c)	602	save_perl (pTHX_ Coro__State c)
539	{	603	{
		604	if (expect_false (c->on_leave))
		605	{
		606	int i;
		607
		608	for (i = AvFILLp (c->on_leave); i >= 0; --i)
		609	on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
		610	}
		611
540	c->except = CORO_THROW;	612	c->except = CORO_THROW;
541	c->slf_frame = slf_frame;	613	c->slf_frame = slf_frame;
542		614
543	{	615	{
544	dSP;	616	dSP;
…		…
557	{	629	{
558	while (expect_true (cxix >= 0))	630	while (expect_true (cxix >= 0))
559	{	631	{
560	PERL_CONTEXT *cx = &ccstk[cxix--];	632	PERL_CONTEXT *cx = &ccstk[cxix--];
561		633
562	if (expect_true (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT))	634	if (expect_true (CxTYPE (cx) == CXt_SUB) \|\| expect_false (CxTYPE (cx) == CXt_FORMAT))
563	{	635	{
564	CV *cv = cx->blk_sub.cv;	636	CV *cv = cx->blk_sub.cv;
565		637
566	if (expect_true (CvDEPTH (cv)))	638	if (expect_true (CvDEPTH (cv)))
567	{	639	{
…		…
602	c->mainstack = PL_mainstack;	674	c->mainstack = PL_mainstack;
603		675
604	{	676	{
605	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);	677	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
606		678
607	slot->defav = GvAV (PL_defgv);	679	slot->defav = GvAV (PL_defgv);
608	slot->defsv = DEFSV;	680	slot->defsv = DEFSV;
609	slot->errsv = ERRSV;	681	slot->errsv = ERRSV;
610	slot->irsgv = GvSV (irsgv);	682	slot->irsgv = GvSV (irsgv);
		683	slot->hinthv = GvHV (PL_hintgv);
611		684
612	#define VAR(name,type) slot->name = PL_ ## name;	685	#define VAR(name,type) slot->name = PL_ ## name;
613	# include "state.h"	686	# include "state.h"
614	#undef VAR	687	#undef VAR
615	}	688	}
…		…
742	#endif	815	#endif
743		816
744	/*	817	/*
745	* This overrides the default magic get method of %SIG elements.	818	* This overrides the default magic get method of %SIG elements.
746	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook	819	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
747	* and instead of tryign to save and restore the hash elements, we just provide	820	* and instead of trying to save and restore the hash elements, we just provide
748	* readback here.	821	* readback here.
749	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
750	* not expecting this to actually change the hook. This is a potential problem
751	* when a schedule happens then, but we ignore this.
752	*/	822	*/
753	static int	823	static int
754	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)	824	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
755	{	825	{
756	const char *s = MgPV_nolen_const (mg);	826	const char *s = MgPV_nolen_const (mg);
…		…
809	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	879	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
810		880
811	if (svp)	881	if (svp)
812	{	882	{
813	SV old = svp;	883	SV old = svp;
814	*svp = newSVsv (sv);	884	*svp = SvOK (sv) ? newSVsv (sv) : 0;
815	SvREFCNT_dec (old);	885	SvREFCNT_dec (old);
816	return 0;	886	return 0;
817	}	887	}
818	}	888	}
819		889
…		…
829		899
830	static int	900	static int
831	slf_check_nop (pTHX_ struct CoroSLF *frame)	901	slf_check_nop (pTHX_ struct CoroSLF *frame)
832	{	902	{
833	return 0;	903	return 0;
		904	}
		905
		906	static int
		907	slf_check_repeat (pTHX_ struct CoroSLF *frame)
		908	{
		909	return 1;
834	}	910	}
835		911
836	static UNOP coro_setup_op;	912	static UNOP coro_setup_op;
837		913
838	static void NOINLINE /* noinline to keep it out of the transfer fast path */	914	static void NOINLINE /* noinline to keep it out of the transfer fast path */
…		…
845		921
846	PL_runops = RUNOPS_DEFAULT;	922	PL_runops = RUNOPS_DEFAULT;
847	PL_curcop = &PL_compiling;	923	PL_curcop = &PL_compiling;
848	PL_in_eval = EVAL_NULL;	924	PL_in_eval = EVAL_NULL;
849	PL_comppad = 0;	925	PL_comppad = 0;
		926	PL_comppad_name = 0;
		927	PL_comppad_name_fill = 0;
		928	PL_comppad_name_floor = 0;
850	PL_curpm = 0;	929	PL_curpm = 0;
851	PL_curpad = 0;	930	PL_curpad = 0;
852	PL_localizing = 0;	931	PL_localizing = 0;
853	PL_dirty = 0;	932	PL_dirty = 0;
854	PL_restartop = 0;	933	PL_restartop = 0;
855	#if PERL_VERSION_ATLEAST (5,10,0)	934	#if PERL_VERSION_ATLEAST (5,10,0)
856	PL_parser = 0;	935	PL_parser = 0;
857	#endif	936	#endif
		937	PL_hints = 0;
858		938
859	/* recreate the die/warn hooks */	939	/* recreate the die/warn hooks */
860	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );	940	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
861	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);	941	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
862		942
863	GvSV (PL_defgv) = newSV (0);	943	GvSV (PL_defgv) = newSV (0);
864	GvAV (PL_defgv) = coro->args; coro->args = 0;	944	GvAV (PL_defgv) = coro->args; coro->args = 0;
865	GvSV (PL_errgv) = newSV (0);	945	GvSV (PL_errgv) = newSV (0);
866	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	946	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		947	GvHV (PL_hintgv) = 0;
867	PL_rs = newSVsv (GvSV (irsgv));	948	PL_rs = newSVsv (GvSV (irsgv));
868	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	949	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
869		950
870	{	951	{
871	dSP;	952	dSP;
…		…
889	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	970	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
890	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */	971	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
891		972
892	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	973	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
893	coro_setup_op.op_next = PL_op;	974	coro_setup_op.op_next = PL_op;
894	coro_setup_op.op_type = OP_CUSTOM;	975	coro_setup_op.op_type = OP_ENTERSUB;
895	coro_setup_op.op_ppaddr = pp_slf;	976	coro_setup_op.op_ppaddr = pp_slf;
896	/* no flags etc. required, as an init function won't be called */	977	/* no flags etc. required, as an init function won't be called */
897		978
898	PL_op = (OP *)&coro_setup_op;	979	PL_op = (OP *)&coro_setup_op;
899		980
900	/* copy throw, in case it was set before coro_setup */	981	/* copy throw, in case it was set before coro_setup */
901	CORO_THROW = coro->except;	982	CORO_THROW = coro->except;
902	}	983	}
903		984
904	static void	985	static void
905	coro_destruct (pTHX_ struct coro *coro)	986	coro_unwind_stacks (pTHX)
906	{	987	{
907	if (!IN_DESTRUCT)	988	if (!IN_DESTRUCT)
908	{	989	{
909	/* restore all saved variables and stuff */	990	/* restore all saved variables and stuff */
910	LEAVE_SCOPE (0);	991	LEAVE_SCOPE (0);
…		…
918	POPSTACK_TO (PL_mainstack);	999	POPSTACK_TO (PL_mainstack);
919		1000
920	/* unwind main stack */	1001	/* unwind main stack */
921	dounwind (-1);	1002	dounwind (-1);
922	}	1003	}
		1004	}
923		1005
924	SvREFCNT_dec (GvSV (PL_defgv));	1006	static void
925	SvREFCNT_dec (GvAV (PL_defgv));	1007	coro_destruct_perl (pTHX_ struct coro *coro)
926	SvREFCNT_dec (GvSV (PL_errgv));	1008	{
927	SvREFCNT_dec (PL_defoutgv);	1009	SV *svf [9];
928	SvREFCNT_dec (PL_rs);
929	SvREFCNT_dec (GvSV (irsgv));
930		1010
931	SvREFCNT_dec (PL_diehook);
932	SvREFCNT_dec (PL_warnhook);
933		1011	{
		1012	struct coro *current = SvSTATE_current;
		1013
		1014	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
		1015
		1016	save_perl (aTHX_ current);
		1017	load_perl (aTHX_ coro);
		1018
		1019	coro_unwind_stacks (aTHX);
		1020	coro_destruct_stacks (aTHX);
		1021
		1022	// now save some sv's to be free'd later
		1023	svf [0] = GvSV (PL_defgv);
		1024	svf [1] = (SV *)GvAV (PL_defgv);
		1025	svf [2] = GvSV (PL_errgv);
		1026	svf [3] = (SV *)PL_defoutgv;
		1027	svf [4] = PL_rs;
		1028	svf [5] = GvSV (irsgv);
		1029	svf [6] = (SV *)GvHV (PL_hintgv);
		1030	svf [7] = PL_diehook;
		1031	svf [8] = PL_warnhook;
		1032	assert (9 == sizeof (svf) / sizeof (*svf));
		1033
		1034	load_perl (aTHX_ current);
		1035	}
		1036
		1037	{
		1038	int i;
		1039
		1040	for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
		1041	SvREFCNT_dec (svf [i]);
		1042
934	SvREFCNT_dec (coro->saved_deffh);	1043	SvREFCNT_dec (coro->saved_deffh);
935	SvREFCNT_dec (coro->rouse_cb);	1044	SvREFCNT_dec (coro->rouse_cb);
936	SvREFCNT_dec (coro->invoke_cb);	1045	SvREFCNT_dec (coro->invoke_cb);
937	SvREFCNT_dec (coro->invoke_av);	1046	SvREFCNT_dec (coro->invoke_av);
938		1047	}
939	coro_destruct_stacks (aTHX);
940	}	1048	}
941		1049
942	INLINE void	1050	INLINE void
943	free_coro_mortal (pTHX)	1051	free_coro_mortal (pTHX)
944	{	1052	{
…		…
952	static int	1060	static int
953	runops_trace (pTHX)	1061	runops_trace (pTHX)
954	{	1062	{
955	COP *oldcop = 0;	1063	COP *oldcop = 0;
956	int oldcxix = -2;	1064	int oldcxix = -2;
957	struct coro coro = SvSTATE_current; / trace cctx is tied to specific coro */
958	coro_cctx *cctx = coro->cctx;
959		1065
960	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))	1066	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
961	{	1067	{
962	PERL_ASYNC_CHECK ();	1068	PERL_ASYNC_CHECK ();
963		1069
964	if (cctx->flags & CC_TRACE_ALL)	1070	if (cctx_current->flags & CC_TRACE_ALL)
965	{	1071	{
966	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)	1072	if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
967	{	1073	{
968	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1074	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
969	SV bot, top;	1075	SV bot, top;
970	AV av = newAV (); / return values */	1076	AV av = newAV (); / return values */
971	SV **cb;	1077	SV **cb;
…		…
1008		1114
1009	if (PL_curcop != &PL_compiling)	1115	if (PL_curcop != &PL_compiling)
1010	{	1116	{
1011	SV **cb;	1117	SV **cb;
1012		1118
1013	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)	1119	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1014	{	1120	{
1015	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1121	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1016		1122
1017	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1123	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1018	{	1124	{
1019	runops_proc_t old_runops = PL_runops;
1020	dSP;	1125	dSP;
1021	GV *gv = CvGV (cx->blk_sub.cv);	1126	GV *gv = CvGV (cx->blk_sub.cv);
1022	SV *fullname = sv_2mortal (newSV (0));	1127	SV *fullname = sv_2mortal (newSV (0));
1023		1128
1024	if (isGV (gv))	1129	if (isGV (gv))
…		…
1042	}	1147	}
1043		1148
1044	oldcxix = cxstack_ix;	1149	oldcxix = cxstack_ix;
1045	}	1150	}
1046		1151
1047	if (cctx->flags & CC_TRACE_LINE)	1152	if (cctx_current->flags & CC_TRACE_LINE)
1048	{	1153	{
1049	dSP;	1154	dSP;
1050		1155
1051	PL_runops = RUNOPS_DEFAULT;	1156	PL_runops = RUNOPS_DEFAULT;
1052	ENTER;	1157	ENTER;
…		…
1071		1176
1072	TAINT_NOT;	1177	TAINT_NOT;
1073	return 0;	1178	return 0;
1074	}	1179	}
1075		1180
1076	static struct coro_cctx *cctx_ssl_cctx;
1077	static struct CoroSLF cctx_ssl_frame;	1181	static struct CoroSLF cctx_ssl_frame;
1078		1182
1079	static void	1183	static void
1080	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)	1184	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1081	{	1185	{
1082	ta->prev = (struct coro *)cctx_ssl_cctx;
1083	ta->next = 0;	1186	ta->prev = 0;
1084	}	1187	}
1085		1188
1086	static int	1189	static int
1087	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)	1190	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1088	{	1191	{
…		…
1091	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */	1194	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1092	}	1195	}
1093		1196
1094	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */	1197	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1095	static void NOINLINE	1198	static void NOINLINE
1096	cctx_prepare (pTHX_ coro_cctx *cctx)	1199	cctx_prepare (pTHX)
1097	{	1200	{
1098	PL_top_env = &PL_start_env;	1201	PL_top_env = &PL_start_env;
1099		1202
1100	if (cctx->flags & CC_TRACE)	1203	if (cctx_current->flags & CC_TRACE)
1101	PL_runops = runops_trace;	1204	PL_runops = runops_trace;
1102		1205
1103	/* we already must be executing an SLF op, there is no other valid way	1206	/* we already must be executing an SLF op, there is no other valid way
1104	* that can lead to creation of a new cctx */	1207	* that can lead to creation of a new cctx */
1105	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",	1208	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1106	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));	1209	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1107		1210
1108	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */	1211	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1109	cctx_ssl_cctx = cctx;
1110	cctx_ssl_frame = slf_frame;	1212	cctx_ssl_frame = slf_frame;
1111		1213
1112	slf_frame.prepare = slf_prepare_set_stacklevel;	1214	slf_frame.prepare = slf_prepare_set_stacklevel;
1113	slf_frame.check = slf_check_set_stacklevel;	1215	slf_frame.check = slf_check_set_stacklevel;
1114	}	1216	}
…		…
1137	/* normally we would need to skip the entersub here */	1239	/* normally we would need to skip the entersub here */
1138	/* not doing so will re-execute it, which is exactly what we want */	1240	/* not doing so will re-execute it, which is exactly what we want */
1139	/* PL_nop = PL_nop->op_next */	1241	/* PL_nop = PL_nop->op_next */
1140		1242
1141	/* inject a fake subroutine call to cctx_init */	1243	/* inject a fake subroutine call to cctx_init */
1142	cctx_prepare (aTHX_ (coro_cctx *)arg);	1244	cctx_prepare (aTHX);
1143		1245
1144	/* cctx_run is the alternative tail of transfer() */	1246	/* cctx_run is the alternative tail of transfer() */
1145	transfer_tail (aTHX);	1247	transfer_tail (aTHX);
1146		1248
1147	/* somebody or something will hit me for both perl_run and PL_restartop */	1249	/* somebody or something will hit me for both perl_run and PL_restartop */
…		…
1155	/*	1257	/*
1156	* If perl-run returns we assume exit() was being called or the coro	1258	* If perl-run returns we assume exit() was being called or the coro
1157	* fell off the end, which seems to be the only valid (non-bug)	1259	* fell off the end, which seems to be the only valid (non-bug)
1158	* reason for perl_run to return. We try to exit by jumping to the	1260	* reason for perl_run to return. We try to exit by jumping to the
1159	* bootstrap-time "top" top_env, as we cannot restore the "main"	1261	* bootstrap-time "top" top_env, as we cannot restore the "main"
1160	* coroutine as Coro has no such concept	1262	* coroutine as Coro has no such concept.
		1263	* This actually isn't valid with the pthread backend, but OSes requiring
		1264	* that backend are too broken to do it in a standards-compliant way.
1161	*/	1265	*/
1162	PL_top_env = main_top_env;	1266	PL_top_env = main_top_env;
1163	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1267	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1164	}	1268	}
1165	}	1269	}
…		…
1242	cctx_destroy (coro_cctx *cctx)	1346	cctx_destroy (coro_cctx *cctx)
1243	{	1347	{
1244	if (!cctx)	1348	if (!cctx)
1245	return;	1349	return;
1246		1350
		1351	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
		1352
1247	--cctx_count;	1353	--cctx_count;
1248	coro_destroy (&cctx->cctx);	1354	coro_destroy (&cctx->cctx);
1249		1355
1250	/* coro_transfer creates new, empty cctx's */	1356	/* coro_transfer creates new, empty cctx's */
1251	if (cctx->sptr)	1357	if (cctx->sptr)
…		…
1314	/* TODO: throwing up here is considered harmful */	1420	/* TODO: throwing up here is considered harmful */
1315		1421
1316	if (expect_true (prev != next))	1422	if (expect_true (prev != next))
1317	{	1423	{
1318	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))	1424	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
1319	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,");	1425	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1320		1426
1321	if (expect_false (next->flags & CF_RUNNING))
1322	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1323
1324	if (expect_false (next->flags & CF_DESTROYED))	1427	if (expect_false (next->flags & (CF_RUNNING \| CF_DESTROYED \| CF_SUSPENDED)))
1325	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,");	1428	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1326		1429
1327	#if !PERL_VERSION_ATLEAST (5,10,0)	1430	#if !PERL_VERSION_ATLEAST (5,10,0)
1328	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1431	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1329	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");	1432	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1330	#endif	1433	#endif
…		…
1336	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)	1439	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
1337	{	1440	{
1338	dSTACKLEVEL;	1441	dSTACKLEVEL;
1339		1442
1340	/* sometimes transfer is only called to set idle_sp */	1443	/* sometimes transfer is only called to set idle_sp */
1341	if (expect_false (!next))	1444	if (expect_false (!prev))
1342	{	1445	{
1343	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1446	cctx_current->idle_sp = STACKLEVEL;
1344	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1447	assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1345	}	1448	}
1346	else if (expect_true (prev != next))	1449	else if (expect_true (prev != next))
1347	{	1450	{
1348	coro_cctx *prev__cctx;	1451	coro_cctx *cctx_prev;
1349		1452
1350	if (expect_false (prev->flags & CF_NEW))	1453	if (expect_false (prev->flags & CF_NEW))
1351	{	1454	{
1352	/* create a new empty/source context */	1455	/* create a new empty/source context */
1353	prev->cctx = cctx_new_empty ();
1354	prev->flags &= ~CF_NEW;	1456	prev->flags &= ~CF_NEW;
1355	prev->flags \|= CF_RUNNING;	1457	prev->flags \|= CF_RUNNING;
1356	}	1458	}
1357		1459
1358	prev->flags &= ~CF_RUNNING;	1460	prev->flags &= ~CF_RUNNING;
…		…
1369	coro_setup (aTHX_ next);	1471	coro_setup (aTHX_ next);
1370	}	1472	}
1371	else	1473	else
1372	load_perl (aTHX_ next);	1474	load_perl (aTHX_ next);
1373		1475
1374	prev__cctx = prev->cctx;
1375
1376	/* possibly untie and reuse the cctx */	1476	/* possibly untie and reuse the cctx */
1377	if (expect_true (	1477	if (expect_true (
1378	prev__cctx->idle_sp == STACKLEVEL	1478	cctx_current->idle_sp == STACKLEVEL
1379	&& !(prev__cctx->flags & CC_TRACE)	1479	&& !(cctx_current->flags & CC_TRACE)
1380	&& !force_cctx	1480	&& !force_cctx
1381	))	1481	))
1382	{	1482	{
1383	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1483	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1384	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));	1484	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1385		1485
1386	prev->cctx = 0;
1387
1388	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1486	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1389	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1487	/* without this the next cctx_get might destroy the running cctx while still in use */
1390	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1488	if (expect_false (CCTX_EXPIRED (cctx_current)))
1391	if (!next->cctx)	1489	if (expect_true (!next->cctx))
1392	next->cctx = cctx_get (aTHX);	1490	next->cctx = cctx_get (aTHX);
1393		1491
1394	cctx_put (prev__cctx);	1492	cctx_put (cctx_current);
1395	}	1493	}
		1494	else
		1495	prev->cctx = cctx_current;
1396		1496
1397	++next->usecount;	1497	++next->usecount;
1398		1498
1399	if (expect_true (!next->cctx))	1499	cctx_prev = cctx_current;
1400	next->cctx = cctx_get (aTHX);	1500	cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1401		1501
1402	if (expect_false (prev__cctx != next->cctx))	1502	next->cctx = 0;
		1503
		1504	if (expect_false (cctx_prev != cctx_current))
1403	{	1505	{
1404	prev__cctx->top_env = PL_top_env;	1506	cctx_prev->top_env = PL_top_env;
1405	PL_top_env = next->cctx->top_env;	1507	PL_top_env = cctx_current->top_env;
1406	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1508	coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1407	}	1509	}
1408		1510
1409	transfer_tail (aTHX);	1511	transfer_tail (aTHX);
1410	}	1512	}
1411	}	1513	}
…		…
1419	coro_state_destroy (pTHX_ struct coro *coro)	1521	coro_state_destroy (pTHX_ struct coro *coro)
1420	{	1522	{
1421	if (coro->flags & CF_DESTROYED)	1523	if (coro->flags & CF_DESTROYED)
1422	return 0;	1524	return 0;
1423		1525
1424	if (coro->on_destroy)	1526	if (coro->on_destroy && !PL_dirty)
1425	coro->on_destroy (aTHX_ coro);	1527	coro->on_destroy (aTHX_ coro);
1426		1528
1427	coro->flags \|= CF_DESTROYED;	1529	coro->flags \|= CF_DESTROYED;
1428		1530
1429	if (coro->flags & CF_READY)	1531	if (coro->flags & CF_READY)
…		…
1433	--coro_nready;	1535	--coro_nready;
1434	}	1536	}
1435	else	1537	else
1436	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */	1538	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */
1437		1539
1438	if (coro->mainstack && coro->mainstack != main_mainstack)	1540	if (coro->mainstack
1439	{	1541	&& coro->mainstack != main_mainstack
1440	struct coro temp;	1542	&& coro->slot
1441		1543	&& !PL_dirty)
1442	assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1443
1444	save_perl (aTHX_ &temp);
1445	load_perl (aTHX_ coro);
1446
1447	coro_destruct (aTHX_ coro);	1544	coro_destruct_perl (aTHX_ coro);
1448
1449	load_perl (aTHX_ &temp);
1450
1451	coro->slot = 0;
1452	}
1453		1545
1454	cctx_destroy (coro->cctx);	1546	cctx_destroy (coro->cctx);
1455	SvREFCNT_dec (coro->startcv);	1547	SvREFCNT_dec (coro->startcv);
1456	SvREFCNT_dec (coro->args);	1548	SvREFCNT_dec (coro->args);
1457	SvREFCNT_dec (CORO_THROW);	1549	SvREFCNT_dec (CORO_THROW);
…		…
1544	/ Coro ******************************************************************/	1636	/ Coro ******************************************************************/
1545		1637
1546	INLINE void	1638	INLINE void
1547	coro_enq (pTHX_ struct coro *coro)	1639	coro_enq (pTHX_ struct coro *coro)
1548	{	1640	{
1549	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1641	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1550	}
1551		1642
1552	INLINE SV *	1643	SvREFCNT_inc_NN (coro->hv);
		1644
		1645	coro->next_ready = 0;
		1646	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
		1647	ready [1] = coro;
		1648	}
		1649
		1650	INLINE struct coro *
1553	coro_deq (pTHX)	1651	coro_deq (pTHX)
1554	{	1652	{
1555	int prio;	1653	int prio;
1556		1654
1557	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1655	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1558	if (AvFILLp (coro_ready [prio]) >= 0)	1656	{
1559	return av_shift (coro_ready [prio]);	1657	struct coro **ready = coro_ready [prio];
		1658
		1659	if (ready [0])
		1660	{
		1661	struct coro *coro = ready [0];
		1662	ready [0] = coro->next_ready;
		1663	return coro;
		1664	}
		1665	}
1560		1666
1561	return 0;	1667	return 0;
1562	}	1668	}
1563		1669
1564	static int	1670	static int
…		…
1566	{	1672	{
1567	struct coro *coro;	1673	struct coro *coro;
1568	SV *sv_hook;	1674	SV *sv_hook;
1569	void (*xs_hook)(void);	1675	void (*xs_hook)(void);
1570		1676
1571	if (SvROK (coro_sv))
1572	coro_sv = SvRV (coro_sv);
1573
1574	coro = SvSTATE (coro_sv);	1677	coro = SvSTATE (coro_sv);
1575		1678
1576	if (coro->flags & CF_READY)	1679	if (coro->flags & CF_READY)
1577	return 0;	1680	return 0;
1578		1681
…		…
1609	api_is_ready (pTHX_ SV *coro_sv)	1712	api_is_ready (pTHX_ SV *coro_sv)
1610	{	1713	{
1611	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1714	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1612	}	1715	}
1613		1716
		1717	/* expects to own a reference to next->hv */
1614	INLINE void	1718	INLINE void
1615	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1719	prepare_schedule_to (pTHX_ struct coro_transfer_args ta, struct coro next)
1616	{	1720	{
1617	SV prev_sv, next_sv;
1618
1619	for (;;)
1620	{
1621	next_sv = coro_deq (aTHX);
1622
1623	/* nothing to schedule: call the idle handler */
1624	if (expect_false (!next_sv))
1625	{
1626	dSP;
1627
1628	ENTER;
1629	SAVETMPS;
1630
1631	PUSHMARK (SP);
1632	PUTBACK;
1633	call_sv (get_sv ("Coro::idle", FALSE), G_VOID \| G_DISCARD);
1634
1635	FREETMPS;
1636	LEAVE;
1637	continue;
1638	}
1639
1640	ta->next = SvSTATE_hv (next_sv);
1641
1642	/* cannot transfer to destroyed coros, skip and look for next */
1643	if (expect_false (ta->next->flags & CF_DESTROYED))
1644	{
1645	SvREFCNT_dec (next_sv);
1646	/* coro_nready has already been taken care of by destroy */
1647	continue;
1648	}
1649
1650	--coro_nready;
1651	break;
1652	}
1653
1654	/* free this only after the transfer */
1655	prev_sv = SvRV (coro_current);	1721	SV *prev_sv = SvRV (coro_current);
		1722
1656	ta->prev = SvSTATE_hv (prev_sv);	1723	ta->prev = SvSTATE_hv (prev_sv);
		1724	ta->next = next;
		1725
1657	TRANSFER_CHECK (*ta);	1726	TRANSFER_CHECK (*ta);
1658	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));	1727
1659	ta->next->flags &= ~CF_READY;
1660	SvRV_set (coro_current, next_sv);	1728	SvRV_set (coro_current, (SV *)next->hv);
1661		1729
1662	free_coro_mortal (aTHX);	1730	free_coro_mortal (aTHX);
1663	coro_mortal = prev_sv;	1731	coro_mortal = prev_sv;
1664	}	1732	}
1665		1733
		1734	static void
		1735	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
		1736	{
		1737	for (;;)
		1738	{
		1739	struct coro *next = coro_deq (aTHX);
		1740
		1741	if (expect_true (next))
		1742	{
		1743	/* cannot transfer to destroyed coros, skip and look for next */
		1744	if (expect_false (next->flags & (CF_DESTROYED \| CF_SUSPENDED)))
		1745	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
		1746	else
		1747	{
		1748	next->flags &= ~CF_READY;
		1749	--coro_nready;
		1750
		1751	prepare_schedule_to (aTHX_ ta, next);
		1752	break;
		1753	}
		1754	}
		1755	else
		1756	{
		1757	/* nothing to schedule: call the idle handler */
		1758	if (SvROK (sv_idle)
		1759	&& SvOBJECT (SvRV (sv_idle)))
		1760	{
		1761	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
		1762	api_ready (aTHX_ SvRV (sv_idle));
		1763	--coro_nready;
		1764	}
		1765	else
		1766	{
		1767	dSP;
		1768
		1769	ENTER;
		1770	SAVETMPS;
		1771
		1772	PUSHMARK (SP);
		1773	PUTBACK;
		1774	call_sv (sv_idle, G_VOID \| G_DISCARD);
		1775
		1776	FREETMPS;
		1777	LEAVE;
		1778	}
		1779	}
		1780	}
		1781	}
		1782
1666	INLINE void	1783	INLINE void
1667	prepare_cede (pTHX_ struct coro_transfer_args *ta)	1784	prepare_cede (pTHX_ struct coro_transfer_args *ta)
1668	{	1785	{
1669	api_ready (aTHX_ coro_current);	1786	api_ready (aTHX_ coro_current);
1670	prepare_schedule (aTHX_ ta);	1787	prepare_schedule (aTHX_ ta);
…		…
1689	{	1806	{
1690	struct coro_transfer_args ta;	1807	struct coro_transfer_args ta;
1691		1808
1692	prepare_schedule (aTHX_ &ta);	1809	prepare_schedule (aTHX_ &ta);
1693	TRANSFER (ta, 1);	1810	TRANSFER (ta, 1);
		1811	}
		1812
		1813	static void
		1814	api_schedule_to (pTHX_ SV *coro_sv)
		1815	{
		1816	struct coro_transfer_args ta;
		1817	struct coro *next = SvSTATE (coro_sv);
		1818
		1819	SvREFCNT_inc_NN (coro_sv);
		1820	prepare_schedule_to (aTHX_ &ta, next);
1694	}	1821	}
1695		1822
1696	static int	1823	static int
1697	api_cede (pTHX)	1824	api_cede (pTHX)
1698	{	1825	{
…		…
1727	static void	1854	static void
1728	api_trace (pTHX_ SV *coro_sv, int flags)	1855	api_trace (pTHX_ SV *coro_sv, int flags)
1729	{	1856	{
1730	struct coro *coro = SvSTATE (coro_sv);	1857	struct coro *coro = SvSTATE (coro_sv);
1731		1858
		1859	if (coro->flags & CF_RUNNING)
		1860	croak ("cannot enable tracing on a running coroutine, caught");
		1861
1732	if (flags & CC_TRACE)	1862	if (flags & CC_TRACE)
1733	{	1863	{
1734	if (!coro->cctx)	1864	if (!coro->cctx)
1735	coro->cctx = cctx_new_run ();	1865	coro->cctx = cctx_new_run ();
1736	else if (!(coro->cctx->flags & CC_TRACE))	1866	else if (!(coro->cctx->flags & CC_TRACE))
1737	croak ("cannot enable tracing on coroutine with custom stack,");	1867	croak ("cannot enable tracing on coroutine with custom stack, caught");
1738		1868
1739	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));	1869	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
1740	}	1870	}
1741	else if (coro->cctx && coro->cctx->flags & CC_TRACE)	1871	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1742	{	1872	{
…		…
1747	else	1877	else
1748	coro->slot->runops = RUNOPS_DEFAULT;	1878	coro->slot->runops = RUNOPS_DEFAULT;
1749	}	1879	}
1750	}	1880	}
1751		1881
		1882	static void
		1883	coro_call_on_destroy (pTHX_ struct coro *coro)
		1884	{
		1885	SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
		1886	SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
		1887
		1888	if (on_destroyp)
		1889	{
		1890	AV on_destroy = (AV )SvRV (*on_destroyp);
		1891
		1892	while (AvFILLp (on_destroy) >= 0)
		1893	{
		1894	dSP; /* don't disturb outer sp */
		1895	SV *cb = av_pop (on_destroy);
		1896
		1897	PUSHMARK (SP);
		1898
		1899	if (statusp)
		1900	{
		1901	int i;
		1902	AV status = (AV )SvRV (*statusp);
		1903	EXTEND (SP, AvFILLp (status) + 1);
		1904
		1905	for (i = 0; i <= AvFILLp (status); ++i)
		1906	PUSHs (AvARRAY (status)[i]);
		1907	}
		1908
		1909	PUTBACK;
		1910	call_sv (sv_2mortal (cb), G_VOID \| G_DISCARD);
		1911	}
		1912	}
		1913	}
		1914
		1915	static void
		1916	slf_init_terminate (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		1917	{
		1918	int i;
		1919	HV hv = (HV )SvRV (coro_current);
		1920	AV *av = newAV ();
		1921
		1922	av_extend (av, items - 1);
		1923	for (i = 0; i < items; ++i)
		1924	av_push (av, SvREFCNT_inc_NN (arg [i]));
		1925
		1926	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
		1927
		1928	av_push (av_destroy, (SV )newRV_inc ((SV )hv)); /* RVinc for perl */
		1929	api_ready (aTHX_ sv_manager);
		1930
		1931	frame->prepare = prepare_schedule;
		1932	frame->check = slf_check_repeat;
		1933
		1934	/* as a minor optimisation, we could unwind all stacks here */
		1935	/* but that puts extra pressure on pp_slf, and is not worth much */
		1936	/coro_unwind_stacks (aTHX);/
		1937	}
		1938
1752	/*****************************************************************************/	1939	/*****************************************************************************/
1753	/* async pool handler */	1940	/* async pool handler */
1754		1941
1755	static int	1942	static int
1756	slf_check_pool_handler (pTHX_ struct CoroSLF *frame)	1943	slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
…		…
1760		1947
1761	if (!coro->invoke_cb)	1948	if (!coro->invoke_cb)
1762	return 1; /* loop till we have invoke */	1949	return 1; /* loop till we have invoke */
1763	else	1950	else
1764	{	1951	{
1765	int i, len;
1766
1767	hv_store (hv, "desc", sizeof ("desc") - 1,	1952	hv_store (hv, "desc", sizeof ("desc") - 1,
1768	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);	1953	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1769		1954
1770	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);	1955	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1771
1772	len = av_len (coro->invoke_av);
1773		1956
1774	{	1957	{
1775	dSP;	1958	dSP;
1776	XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;	1959	XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
1777	PUTBACK;	1960	PUTBACK;
…		…
1841	SV data = (SV )GENSUB_ARG;	2024	SV data = (SV )GENSUB_ARG;
1842		2025
1843	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2026	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1844	{	2027	{
1845	/* first call, set args */	2028	/* first call, set args */
1846	int i;	2029	SV *coro = SvRV (data);
1847	AV *av = newAV ();	2030	AV *av = newAV ();
1848	SV *coro = SvRV (data);
1849		2031
1850	SvRV_set (data, (SV *)av);	2032	SvRV_set (data, (SV *)av);
1851	api_ready (aTHX_ coro);
1852	SvREFCNT_dec (coro);
1853		2033
1854	/* better take a full copy of the arguments */	2034	/* better take a full copy of the arguments */
1855	while (items--)	2035	while (items--)
1856	av_store (av, items, newSVsv (ST (items)));	2036	av_store (av, items, newSVsv (ST (items)));
		2037
		2038	api_ready (aTHX_ coro);
		2039	SvREFCNT_dec (coro);
1857	}	2040	}
1858		2041
1859	XSRETURN_EMPTY;	2042	XSRETURN_EMPTY;
1860	}	2043	}
1861		2044
…		…
1878		2061
1879	EXTEND (SP, AvFILLp (av) + 1);	2062	EXTEND (SP, AvFILLp (av) + 1);
1880	for (i = 0; i <= AvFILLp (av); ++i)	2063	for (i = 0; i <= AvFILLp (av); ++i)
1881	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2064	PUSHs (sv_2mortal (AvARRAY (av)[i]));
1882		2065
1883	/* we have stolen the elements, so ste length to zero and free */	2066	/* we have stolen the elements, so set length to zero and free */
1884	AvFILLp (av) = -1;	2067	AvFILLp (av) = -1;
1885	av_undef (av);	2068	av_undef (av);
1886		2069
1887	PUTBACK;	2070	PUTBACK;
1888	}	2071	}
…		…
1992	static void	2175	static void
1993	slf_init_schedule (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)	2176	slf_init_schedule (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
1994	{	2177	{
1995	frame->prepare = prepare_schedule;	2178	frame->prepare = prepare_schedule;
1996	frame->check = slf_check_nop;	2179	frame->check = slf_check_nop;
		2180	}
		2181
		2182	static void
		2183	slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
		2184	{
		2185	struct coro next = (struct coro )slf_frame.data;
		2186
		2187	SvREFCNT_inc_NN (next->hv);
		2188	prepare_schedule_to (aTHX_ ta, next);
		2189	}
		2190
		2191	static void
		2192	slf_init_schedule_to (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		2193	{
		2194	if (!items)
		2195	croak ("Coro::schedule_to expects a coroutine argument, caught");
		2196
		2197	frame->data = (void *)SvSTATE (arg [0]);
		2198	frame->prepare = slf_prepare_schedule_to;
		2199	frame->check = slf_check_nop;
		2200	}
		2201
		2202	static void
		2203	slf_init_cede_to (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		2204	{
		2205	api_ready (aTHX_ SvRV (coro_current));
		2206
		2207	slf_init_schedule_to (aTHX_ frame, cv, arg, items);
1997	}	2208	}
1998		2209
1999	static void	2210	static void
2000	slf_init_cede (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)	2211	slf_init_cede (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
2001	{	2212	{
…		…
2147	}	2358	}
2148	else	2359	else
2149	slf_argc = 0;	2360	slf_argc = 0;
2150		2361
2151	PL_op->op_ppaddr = pp_slf;	2362	PL_op->op_ppaddr = pp_slf;
2152	PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */	2363	/PL_op->op_type = OP_CUSTOM; / we do behave like entersub still */
2153		2364
2154	PL_op = (OP *)&slf_restore;	2365	PL_op = (OP *)&slf_restore;
		2366	}
		2367
		2368	/*****************************************************************************/
		2369	/* dynamic wind */
		2370
		2371	static void
		2372	on_enterleave_call (pTHX_ SV *cb)
		2373	{
		2374	dSP;
		2375
		2376	PUSHSTACK;
		2377
		2378	PUSHMARK (SP);
		2379	PUTBACK;
		2380	call_sv (cb, G_VOID \| G_DISCARD);
		2381	SPAGAIN;
		2382
		2383	POPSTACK;
		2384	}
		2385
		2386	static SV *
		2387	coro_avp_pop_and_free (pTHX_ AV **avp)
		2388	{
		2389	AV av = avp;
		2390	SV *res = av_pop (av);
		2391
		2392	if (AvFILLp (av) < 0)
		2393	{
		2394	*avp = 0;
		2395	SvREFCNT_dec (av);
		2396	}
		2397
		2398	return res;
		2399	}
		2400
		2401	static void
		2402	coro_pop_on_enter (pTHX_ void *coro)
		2403	{
		2404	SV cb = coro_avp_pop_and_free (aTHX_ &((struct coro )coro)->on_enter);
		2405	SvREFCNT_dec (cb);
		2406	}
		2407
		2408	static void
		2409	coro_pop_on_leave (pTHX_ void *coro)
		2410	{
		2411	SV cb = coro_avp_pop_and_free (aTHX_ &((struct coro )coro)->on_leave);
		2412	on_enterleave_call (aTHX_ sv_2mortal (cb));
2155	}	2413	}
2156		2414
2157	/*****************************************************************************/	2415	/*****************************************************************************/
2158	/* PerlIO::cede */	2416	/* PerlIO::cede */
2159		2417
…		…
2233	/* Coro::Semaphore & Coro::Signal */	2491	/* Coro::Semaphore & Coro::Signal */
2234		2492
2235	static SV *	2493	static SV *
2236	coro_waitarray_new (pTHX_ int count)	2494	coro_waitarray_new (pTHX_ int count)
2237	{	2495	{
2238	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	2496	/* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2239	AV *av = newAV ();	2497	AV *av = newAV ();
2240	SV **ary;	2498	SV **ary;
2241		2499
2242	/* unfortunately, building manually saves memory */	2500	/* unfortunately, building manually saves memory */
2243	Newx (ary, 2, SV *);	2501	Newx (ary, 2, SV *);
2244	AvALLOC (av) = ary;	2502	AvALLOC (av) = ary;
		2503	#if PERL_VERSION_ATLEAST (5,10,0)
2245	/AvARRAY (av) = ary;/	2504	AvARRAY (av) = ary;
		2505	#else
2246	SvPVX ((SV )av) = (char )ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */	2506	/* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
		2507	/* -DDEBUGGING flags this as a bug, despite it perfectly working */
		2508	SvPVX ((SV )av) = (char )ary;
		2509	#endif
2247	AvMAX (av) = 1;	2510	AvMAX (av) = 1;
2248	AvFILLp (av) = 0;	2511	AvFILLp (av) = 0;
2249	ary [0] = newSViv (count);	2512	ary [0] = newSViv (count);
2250		2513
2251	return newRV_noinc ((SV *)av);	2514	return newRV_noinc ((SV *)av);
…		…
2382	{	2645	{
2383	/* callback form */	2646	/* callback form */
2384	AV av = (AV )SvRV (arg [0]);	2647	AV av = (AV )SvRV (arg [0]);
2385	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);	2648	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2386		2649
2387	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2650	av_push (av, SvREFCNT_inc_NN (cb_cv));
2388		2651
2389	if (SvIVX (AvARRAY (av)[0]) > 0)	2652	if (SvIVX (AvARRAY (av)[0]) > 0)
2390	coro_semaphore_adjust (aTHX_ av, 0);	2653	coro_semaphore_adjust (aTHX_ av, 0);
2391		2654
2392	frame->prepare = prepare_nop;	2655	frame->prepare = prepare_nop;
…		…
2416	AvARRAY (av)[0] = AvARRAY (av)[1];	2679	AvARRAY (av)[0] = AvARRAY (av)[1];
2417	AvARRAY (av)[1] = cb;	2680	AvARRAY (av)[1] = cb;
2418		2681
2419	cb = av_shift (av);	2682	cb = av_shift (av);
2420		2683
		2684	if (SvTYPE (cb) == SVt_PVCV)
		2685	{
		2686	dSP;
		2687	PUSHMARK (SP);
		2688	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2689	PUTBACK;
		2690	call_sv (cb, G_VOID \| G_DISCARD \| G_EVAL \| G_KEEPERR);
		2691	}
		2692	else
		2693	{
2421	api_ready (aTHX_ cb);	2694	api_ready (aTHX_ cb);
2422	sv_setiv (cb, 0); /* signal waiter */	2695	sv_setiv (cb, 0); /* signal waiter */
		2696	}
		2697
2423	SvREFCNT_dec (cb);	2698	SvREFCNT_dec (cb);
2424		2699
2425	--count;	2700	--count;
2426	}	2701	}
2427	}	2702	}
…		…
2436	static void	2711	static void
2437	slf_init_signal_wait (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)	2712	slf_init_signal_wait (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
2438	{	2713	{
2439	AV av = (AV )SvRV (arg [0]);	2714	AV av = (AV )SvRV (arg [0]);
2440		2715
		2716	if (items >= 2)
		2717	{
		2718	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
		2719	av_push (av, SvREFCNT_inc_NN (cb_cv));
		2720
2441	if (SvIVX (AvARRAY (av)[0]))	2721	if (SvIVX (AvARRAY (av)[0]))
		2722	coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */
		2723
		2724	frame->prepare = prepare_nop;
		2725	frame->check = slf_check_nop;
		2726	}
		2727	else if (SvIVX (AvARRAY (av)[0]))
2442	{	2728	{
2443	SvIVX (AvARRAY (av)[0]) = 0;	2729	SvIVX (AvARRAY (av)[0]) = 0;
2444	frame->prepare = prepare_nop;	2730	frame->prepare = prepare_nop;
2445	frame->check = slf_check_nop;	2731	frame->check = slf_check_nop;
2446	}	2732	}
2447	else	2733	else
2448	{	2734	{
2449	SV waiter = newRV_inc (SvRV (coro_current)); / owned by signal av */	2735	SV waiter = newSVsv (coro_current); / owned by signal av */
2450		2736
2451	av_push (av, waiter);	2737	av_push (av, waiter);
2452		2738
2453	frame->data = (void )sv_2mortal (SvREFCNT_inc_NN (waiter)); / owned by process */	2739	frame->data = (void )sv_2mortal (SvREFCNT_inc_NN (waiter)); / owned by process */
2454	frame->prepare = prepare_schedule;	2740	frame->prepare = prepare_schedule;
…		…
2621	XSRETURN_EMPTY;	2907	XSRETURN_EMPTY;
2622	}	2908	}
2623		2909
2624	/*****************************************************************************/	2910	/*****************************************************************************/
2625		2911
		2912	#if CORO_CLONE
		2913	# include "clone.c"
		2914	#endif
		2915
2626	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	2916	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2627		2917
2628	PROTOTYPES: DISABLE	2918	PROTOTYPES: DISABLE
2629		2919
2630	BOOT:	2920	BOOT:
…		…
2634	coro_thx = PERL_GET_CONTEXT;	2924	coro_thx = PERL_GET_CONTEXT;
2635	# endif	2925	# endif
2636	#endif	2926	#endif
2637	BOOT_PAGESIZE;	2927	BOOT_PAGESIZE;
2638		2928
		2929	cctx_current = cctx_new_empty ();
		2930
2639	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);	2931	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
2640	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);	2932	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
2641		2933
2642	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;	2934	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2643	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;	2935	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
…		…
2662		2954
2663	{	2955	{
2664	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));	2956	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2665		2957
2666	if (!PL_custom_op_names) PL_custom_op_names = newHV ();	2958	if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2667	hv_store_ent (PL_custom_op_names, slf,	2959	hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2668	newSVpv ("coro_slf", 0), 0);
2669		2960
2670	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();	2961	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2671	hv_store_ent (PL_custom_op_descs, slf,	2962	hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2672	newSVpv ("coro schedule like function", 0), 0);
2673	}	2963	}
2674		2964
2675	coroapi.ver = CORO_API_VERSION;	2965	coroapi.ver = CORO_API_VERSION;
2676	coroapi.rev = CORO_API_REVISION;	2966	coroapi.rev = CORO_API_REVISION;
2677		2967
…		…
2691	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");	2981	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2692		2982
2693	nvtime = INT2PTR (double ()(), SvIV (svp));	2983	nvtime = INT2PTR (double ()(), SvIV (svp));
2694	}	2984	}
2695		2985
2696	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2986	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2697	}	2987	}
2698		2988
2699	SV *	2989	SV *
2700	new (char *klass, ...)	2990	new (char *klass, ...)
2701	ALIAS:	2991	ALIAS:
…		…
2770	void	3060	void
2771	_exit (int code)	3061	_exit (int code)
2772	PROTOTYPE: $	3062	PROTOTYPE: $
2773	CODE:	3063	CODE:
2774	_exit (code);	3064	_exit (code);
		3065
		3066	SV *
		3067	clone (Coro::State coro)
		3068	CODE:
		3069	{
		3070	#if CORO_CLONE
		3071	struct coro *ncoro = coro_clone (aTHX_ coro);
		3072	MAGIC *mg;
		3073	/* TODO: too much duplication */
		3074	ncoro->hv = newHV ();
		3075	mg = sv_magicext ((SV )ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )ncoro, 0);
		3076	mg->mg_flags \|= MGf_DUP;
		3077	RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
		3078	#else
		3079	croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
		3080	#endif
		3081	}
		3082	OUTPUT:
		3083	RETVAL
2775		3084
2776	int	3085	int
2777	cctx_stacksize (int new_stacksize = 0)	3086	cctx_stacksize (int new_stacksize = 0)
2778	PROTOTYPE: ;$	3087	PROTOTYPE: ;$
2779	CODE:	3088	CODE:
…		…
2829	eval = 1	3138	eval = 1
2830	CODE:	3139	CODE:
2831	{	3140	{
2832	if (coro->mainstack && ((coro->flags & CF_RUNNING) \|\| coro->slot))	3141	if (coro->mainstack && ((coro->flags & CF_RUNNING) \|\| coro->slot))
2833	{	3142	{
2834	struct coro temp;	3143	struct coro *current = SvSTATE_current;
2835		3144
2836	if (!(coro->flags & CF_RUNNING))	3145	if (current != coro)
2837	{	3146	{
2838	PUTBACK;	3147	PUTBACK;
2839	save_perl (aTHX_ &temp);	3148	save_perl (aTHX_ current);
2840	load_perl (aTHX_ coro);	3149	load_perl (aTHX_ coro);
		3150	SPAGAIN;
2841	}	3151	}
2842		3152
2843	{
2844	dSP;
2845	ENTER;
2846	SAVETMPS;
2847	PUTBACK;
2848	PUSHSTACK;	3153	PUSHSTACK;
		3154
2849	PUSHMARK (SP);	3155	PUSHMARK (SP);
		3156	PUTBACK;
2850		3157
2851	if (ix)	3158	if (ix)
2852	eval_sv (coderef, 0);	3159	eval_sv (coderef, 0);
2853	else	3160	else
2854	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	3161	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
2855		3162
2856	POPSTACK;	3163	POPSTACK;
2857	SPAGAIN;	3164	SPAGAIN;
2858	FREETMPS;
2859	LEAVE;
2860	PUTBACK;
2861	}
2862		3165
2863	if (!(coro->flags & CF_RUNNING))	3166	if (current != coro)
2864	{	3167	{
		3168	PUTBACK;
2865	save_perl (aTHX_ coro);	3169	save_perl (aTHX_ coro);
2866	load_perl (aTHX_ &temp);	3170	load_perl (aTHX_ current);
2867	SPAGAIN;	3171	SPAGAIN;
2868	}	3172	}
2869	}	3173	}
2870	}	3174	}
2871		3175
…		…
2875	ALIAS:	3179	ALIAS:
2876	is_ready = CF_READY	3180	is_ready = CF_READY
2877	is_running = CF_RUNNING	3181	is_running = CF_RUNNING
2878	is_new = CF_NEW	3182	is_new = CF_NEW
2879	is_destroyed = CF_DESTROYED	3183	is_destroyed = CF_DESTROYED
		3184	is_suspended = CF_SUSPENDED
2880	CODE:	3185	CODE:
2881	RETVAL = boolSV (coro->flags & ix);	3186	RETVAL = boolSV (coro->flags & ix);
2882	OUTPUT:	3187	OUTPUT:
2883	RETVAL	3188	RETVAL
2884		3189
…		…
2888	CODE:	3193	CODE:
2889	{	3194	{
2890	struct coro *current = SvSTATE_current;	3195	struct coro *current = SvSTATE_current;
2891	SV **throwp = self == current ? &CORO_THROW : &self->except;	3196	SV **throwp = self == current ? &CORO_THROW : &self->except;
2892	SvREFCNT_dec (*throwp);	3197	SvREFCNT_dec (*throwp);
		3198	SvGETMAGIC (throw);
2893	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3199	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
2894	}	3200	}
2895		3201
2896	void	3202	void
2897	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)	3203	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
…		…
2900		3206
2901	SV *	3207	SV *
2902	has_cctx (Coro::State coro)	3208	has_cctx (Coro::State coro)
2903	PROTOTYPE: $	3209	PROTOTYPE: $
2904	CODE:	3210	CODE:
2905	RETVAL = boolSV (!!coro->cctx);	3211	/* maybe manage the running flag differently */
		3212	RETVAL = boolSV (!!coro->cctx \|\| (coro->flags & CF_RUNNING));
2906	OUTPUT:	3213	OUTPUT:
2907	RETVAL	3214	RETVAL
2908		3215
2909	int	3216	int
2910	is_traced (Coro::State coro)	3217	is_traced (Coro::State coro)
…		…
2930		3237
2931	void	3238	void
2932	force_cctx ()	3239	force_cctx ()
2933	PROTOTYPE:	3240	PROTOTYPE:
2934	CODE:	3241	CODE:
2935	SvSTATE_current->cctx->idle_sp = 0;	3242	cctx_current->idle_sp = 0;
2936		3243
2937	void	3244	void
2938	swap_defsv (Coro::State self)	3245	swap_defsv (Coro::State self)
2939	PROTOTYPE: $	3246	PROTOTYPE: $
2940	ALIAS:	3247	ALIAS:
…		…
2948	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;	3255	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
2949		3256
2950	SV tmp = src; src = dst; *dst = tmp;	3257	SV tmp = src; src = dst; *dst = tmp;
2951	}	3258	}
2952		3259
		3260	void
		3261	cancel (Coro::State self)
		3262	CODE:
		3263	coro_state_destroy (aTHX_ self);
		3264	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3265
2953		3266
2954	MODULE = Coro::State PACKAGE = Coro	3267	MODULE = Coro::State PACKAGE = Coro
2955		3268
2956	BOOT:	3269	BOOT:
2957	{	3270	{
2958	int i;
2959
2960	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2961	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3271	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2962	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3272	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2963	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);	3273	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
2964	cv_coro_terminate = get_cv ( "Coro::terminate", GV_ADD);	3274	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2965	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE);	3275	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2966	SvREADONLY_on (coro_current);	3276	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		3277	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
		3278	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3279	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
2967		3280
2968	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	3281	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
2969	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	3282	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
2970	cv_pool_handler = get_cv ("Coro::_pool_handler", 0); SvREADONLY_on (cv_pool_handler);	3283	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
2971	cv_coro_new = get_cv ("Coro::new", 0); SvREADONLY_on (cv_coro_new);	3284	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2972		3285
2973	coro_stash = gv_stashpv ("Coro", TRUE);	3286	coro_stash = gv_stashpv ("Coro", TRUE);
2974		3287
2975	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3288	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
2976	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3289	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
2977	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3290	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
2978	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3291	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
2979	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3292	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
2980	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3293	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
2981
2982	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
2983	coro_ready[i] = newAV ();
2984		3294
2985	{	3295	{
2986	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3296	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2987		3297
2988	coroapi.schedule = api_schedule;	3298	coroapi.schedule = api_schedule;
		3299	coroapi.schedule_to = api_schedule_to;
2989	coroapi.cede = api_cede;	3300	coroapi.cede = api_cede;
2990	coroapi.cede_notself = api_cede_notself;	3301	coroapi.cede_notself = api_cede_notself;
2991	coroapi.ready = api_ready;	3302	coroapi.ready = api_ready;
2992	coroapi.is_ready = api_is_ready;	3303	coroapi.is_ready = api_is_ready;
2993	coroapi.nready = coro_nready;	3304	coroapi.nready = coro_nready;
…		…
2998	SvREADONLY_on (sv);	3309	SvREADONLY_on (sv);
2999	}	3310	}
3000	}	3311	}
3001		3312
3002	void	3313	void
		3314	terminate (...)
		3315	CODE:
		3316	CORO_EXECUTE_SLF_XS (slf_init_terminate);
		3317
		3318	void
3003	schedule (...)	3319	schedule (...)
3004	CODE:	3320	CODE:
3005	CORO_EXECUTE_SLF_XS (slf_init_schedule);	3321	CORO_EXECUTE_SLF_XS (slf_init_schedule);
		3322
		3323	void
		3324	schedule_to (...)
		3325	CODE:
		3326	CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
		3327
		3328	void
		3329	cede_to (...)
		3330	CODE:
		3331	CORO_EXECUTE_SLF_XS (slf_init_cede_to);
3006		3332
3007	void	3333	void
3008	cede (...)	3334	cede (...)
3009	CODE:	3335	CODE:
3010	CORO_EXECUTE_SLF_XS (slf_init_cede);	3336	CORO_EXECUTE_SLF_XS (slf_init_cede);
…		…
3024	void	3350	void
3025	_set_readyhook (SV *hook)	3351	_set_readyhook (SV *hook)
3026	PROTOTYPE: $	3352	PROTOTYPE: $
3027	CODE:	3353	CODE:
3028	SvREFCNT_dec (coro_readyhook);	3354	SvREFCNT_dec (coro_readyhook);
		3355	SvGETMAGIC (hook);
3029	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;	3356	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
3030		3357
3031	int	3358	int
3032	prio (Coro::State coro, int newprio = 0)	3359	prio (Coro::State coro, int newprio = 0)
3033	PROTOTYPE: $;$	3360	PROTOTYPE: $;$
…		…
3066	RETVAL = coro_nready;	3393	RETVAL = coro_nready;
3067	OUTPUT:	3394	OUTPUT:
3068	RETVAL	3395	RETVAL
3069		3396
3070	void	3397	void
		3398	suspend (Coro::State self)
		3399	PROTOTYPE: $
		3400	CODE:
		3401	self->flags \|= CF_SUSPENDED;
		3402
		3403	void
		3404	resume (Coro::State self)
		3405	PROTOTYPE: $
		3406	CODE:
		3407	self->flags &= ~CF_SUSPENDED;
		3408
		3409	void
3071	_pool_handler (...)	3410	_pool_handler (...)
3072	CODE:	3411	CODE:
3073	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);	3412	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3074		3413
3075	void	3414	void
…		…
3091	PUSHMARK (SP);	3430	PUSHMARK (SP);
3092	EXTEND (SP, 2);	3431	EXTEND (SP, 2);
3093	PUSHs (sv_Coro);	3432	PUSHs (sv_Coro);
3094	PUSHs ((SV *)cv_pool_handler);	3433	PUSHs ((SV *)cv_pool_handler);
3095	PUTBACK;	3434	PUTBACK;
3096	call_sv (cv_coro_new, G_SCALAR);	3435	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3097	SPAGAIN;	3436	SPAGAIN;
3098		3437
3099	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));	3438	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
3100	}	3439	}
3101		3440
…		…
3106	assert (!coro->invoke_av);	3445	assert (!coro->invoke_av);
3107	coro->invoke_cb = SvREFCNT_inc (cb);	3446	coro->invoke_cb = SvREFCNT_inc (cb);
3108	coro->invoke_av = av;	3447	coro->invoke_av = av;
3109	}	3448	}
3110		3449
3111	api_ready ((SV *)hv);	3450	api_ready (aTHX_ (SV *)hv);
3112		3451
3113	if (GIMME_V != G_VOID)	3452	if (GIMME_V != G_VOID)
3114	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));	3453	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3115	else	3454	else
3116	SvREFCNT_dec (hv);	3455	SvREFCNT_dec (hv);
…		…
3128	rouse_wait (...)	3467	rouse_wait (...)
3129	PROTOTYPE: ;$	3468	PROTOTYPE: ;$
3130	PPCODE:	3469	PPCODE:
3131	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3470	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3132		3471
		3472	void
		3473	on_enter (SV *block)
		3474	ALIAS:
		3475	on_leave = 1
		3476	PROTOTYPE: &
		3477	CODE:
		3478	{
		3479	struct coro *coro = SvSTATE_current;
		3480	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3481
		3482	block = (SV *)coro_sv_2cv (aTHX_ block);
		3483
		3484	if (!*avp)
		3485	*avp = newAV ();
		3486
		3487	av_push (*avp, SvREFCNT_inc (block));
		3488
		3489	if (!ix)
		3490	on_enterleave_call (aTHX_ block);
		3491
		3492	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3493	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3494	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3495	}
		3496
3133		3497
3134	MODULE = Coro::State PACKAGE = PerlIO::cede	3498	MODULE = Coro::State PACKAGE = PerlIO::cede
3135		3499
3136	BOOT:	3500	BOOT:
3137	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3501	PerlIO_define_layer (aTHX_ &PerlIO_cede);
…		…
3140	MODULE = Coro::State PACKAGE = Coro::Semaphore	3504	MODULE = Coro::State PACKAGE = Coro::Semaphore
3141		3505
3142	SV *	3506	SV *
3143	new (SV klass, SV count = 0)	3507	new (SV klass, SV count = 0)
3144	CODE:	3508	CODE:
		3509	{
		3510	int semcnt = 1;
		3511
		3512	if (count)
		3513	{
		3514	SvGETMAGIC (count);
		3515
		3516	if (SvOK (count))
		3517	semcnt = SvIV (count);
		3518	}
		3519
3145	RETVAL = sv_bless (	3520	RETVAL = sv_bless (
3146	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),	3521	coro_waitarray_new (aTHX_ semcnt),
3147	GvSTASH (CvGV (cv))	3522	GvSTASH (CvGV (cv))
3148	);	3523	);
		3524	}
3149	OUTPUT:	3525	OUTPUT:
3150	RETVAL	3526	RETVAL
3151		3527
3152	# helper for Coro::Channel	3528	# helper for Coro::Channel and others
3153	SV *	3529	SV *
3154	_alloc (int count)	3530	_alloc (int count)
3155	CODE:	3531	CODE:
3156	RETVAL = coro_waitarray_new (aTHX_ count);	3532	RETVAL = coro_waitarray_new (aTHX_ count);
3157	OUTPUT:	3533	OUTPUT:
…		…
3215	for (i = 1; i <= wcount; ++i)	3591	for (i = 1; i <= wcount; ++i)
3216	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3592	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3217	}	3593	}
3218	}	3594	}
3219		3595
		3596	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3597
		3598	void
		3599	_may_delete (SV *sem, int count, int extra_refs)
		3600	PPCODE:
		3601	{
		3602	AV av = (AV )SvRV (sem);
		3603
		3604	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3605	&& AvFILLp (av) == 0 /* no waiters, just count */
		3606	&& SvIV (AvARRAY (av)[0]) == count)
		3607	XSRETURN_YES;
		3608
		3609	XSRETURN_NO;
		3610	}
		3611
3220	MODULE = Coro::State PACKAGE = Coro::Signal	3612	MODULE = Coro::State PACKAGE = Coro::Signal
3221		3613
3222	SV *	3614	SV *
3223	new (SV *klass)	3615	new (SV *klass)
3224	CODE:	3616	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.312 by root, Thu Nov 20 03:10:30 2008 UTC vs. Revision 1.358 by root, Mon Jun 29 04:30:25 2009 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.312 by root, Thu Nov 20 03:10:30 2008 UTC vs.
Revision 1.358 by root, Mon Jun 29 04:30:25 2009 UTC