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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.307 by root, Wed Nov 19 14:34:46 2008 UTC vs.
Revision 1.349 by root, Wed Jun 10 00:47:24 2009 UTC

…		…
55		55
56	#define PERL_VERSION_ATLEAST(a,b,c) \	56	#define PERL_VERSION_ATLEAST(a,b,c) \
57	(PERL_REVISION > (a) \	57	(PERL_REVISION > (a) \
58	|| (PERL_REVISION == (a) \	58	|| (PERL_REVISION == (a) \
59	&& (PERL_VERSION > (b) \	59	&& (PERL_VERSION > (b) \
60	|| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))	60	|| (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61		61
62	#if !PERL_VERSION_ATLEAST (5,6,0)	62	#if !PERL_VERSION_ATLEAST (5,6,0)
63	# ifndef PL_ppaddr	63	# ifndef PL_ppaddr
64	# define PL_ppaddr ppaddr	64	# define PL_ppaddr ppaddr
65	# endif	65	# endif
…		…
98	# define newSV(l) NEWSV(0,l)	98	# define newSV(l) NEWSV(0,l)
99	#endif	99	#endif
100	#ifndef CvISXSUB_on	100	#ifndef CvISXSUB_on
101	# define CvISXSUB_on(cv) (void)cv	101	# define CvISXSUB_on(cv) (void)cv
102	#endif	102	#endif
		103	#ifndef CvISXSUB
		104	# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
		105	#endif
		106	#ifndef Newx
		107	# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
		108	#endif
103		109
104	/* 5.8.7 */	110	/* 5.8.7 */
105	#ifndef SvRV_set	111	#ifndef SvRV_set
106	# define SvRV_set(s,v) SvRV(s) = (v)	112	# define SvRV_set(s,v) SvRV(s) = (v)
107	#endif	113	#endif
…		…
127	#else	133	#else
128	# define dSTACKLEVEL volatile void *stacklevel	134	# define dSTACKLEVEL volatile void *stacklevel
129	# define STACKLEVEL ((void *)&stacklevel)	135	# define STACKLEVEL ((void *)&stacklevel)
130	#endif	136	#endif
131		137
132	#define IN_DESTRUCT (PL_main_cv == Nullcv)	138	#define IN_DESTRUCT PL_dirty
133		139
134	#if __GNUC__ >= 3	140	#if __GNUC__ >= 3
135	# define attribute(x) __attribute__(x)	141	# define attribute(x) __attribute__(x)
136	# define expect(expr,value) __builtin_expect ((expr),(value))	142	# define expect(expr,value) __builtin_expect ((expr),(value))
137	# define INLINE static inline	143	# define INLINE static inline
…		…
167	static AV *main_mainstack; /* used to differentiate between $main and others */	173	static AV *main_mainstack; /* used to differentiate between $main and others */
168	static JMPENV *main_top_env;	174	static JMPENV *main_top_env;
169	static HV *coro_state_stash, *coro_stash;	175	static HV *coro_state_stash, *coro_stash;
170	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */	176	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
171		177
		178	static AV *av_destroy; /* destruction queue */
		179	static SV *sv_manager; /* the manager coro */
		180	static SV *sv_idle; /* $Coro::idle */
		181
172	static GV *irsgv; /* $/ */	182	static GV *irsgv; /* $/ */
173	static GV *stdoutgv; /* *STDOUT */	183	static GV *stdoutgv; /* *STDOUT */
174	static SV *rv_diehook;	184	static SV *rv_diehook;
175	static SV *rv_warnhook;	185	static SV *rv_warnhook;
176	static HV *hv_sig; /* %SIG */	186	static HV *hv_sig; /* %SIG */
177		187
178	/* async_pool helper stuff */	188	/* async_pool helper stuff */
179	static SV *sv_pool_rss;	189	static SV *sv_pool_rss;
180	static SV *sv_pool_size;	190	static SV *sv_pool_size;
		191	static SV *sv_async_pool_idle; /* description string */
181	static AV *av_async_pool;	192	static AV *av_async_pool; /* idle pool */
		193	static SV *sv_Coro; /* class string */
		194	static CV *cv_pool_handler;
		195	static CV *cv_coro_state_new;
182		196
183	/* Coro::AnyEvent */	197	/* Coro::AnyEvent */
184	static SV *sv_activity;	198	static SV *sv_activity;
185		199
186	static struct coro_cctx *cctx_first;	200	static struct coro_cctx *cctx_first;
…		…
215	int valgrind_id;	229	int valgrind_id;
216	#endif	230	#endif
217	unsigned char flags;	231	unsigned char flags;
218	} coro_cctx;	232	} coro_cctx;
219		233
		234	coro_cctx *cctx_current; /* the currently running cctx */
		235
		236	/*****************************************************************************/
		237
220	enum {	238	enum {
221	CF_RUNNING = 0x0001, /* coroutine is running */	239	CF_RUNNING = 0x0001, /* coroutine is running */
222	CF_READY = 0x0002, /* coroutine is ready */	240	CF_READY = 0x0002, /* coroutine is ready */
223	CF_NEW = 0x0004, /* has never been switched to */	241	CF_NEW = 0x0004, /* has never been switched to */
224	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	242	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
		243	CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
225	};	244	};
226		245
227	/* the structure where most of the perl state is stored, overlaid on the cxstack */	246	/* the structure where most of the perl state is stored, overlaid on the cxstack */
228	typedef struct	247	typedef struct
229	{	248	{
230	SV *defsv;	249	SV *defsv;
231	AV *defav;	250	AV *defav;
232	SV *errsv;	251	SV *errsv;
233	SV *irsgv;	252	SV *irsgv;
		253	HV *hinthv;
234	#define VAR(name,type) type name;	254	#define VAR(name,type) type name;
235	# include "state.h"	255	# include "state.h"
236	#undef VAR	256	#undef VAR
237	} perl_slots;	257	} perl_slots;
238		258
…		…
240		260
241	/* this is a structure representing a perl-level coroutine */	261	/* this is a structure representing a perl-level coroutine */
242	struct coro {	262	struct coro {
243	/* the C coroutine allocated to this perl coroutine, if any */	263	/* the C coroutine allocated to this perl coroutine, if any */
244	coro_cctx *cctx;	264	coro_cctx *cctx;
		265
		266	/* ready queue */
		267	struct coro *next_ready;
245		268
246	/* state data */	269	/* state data */
247	struct CoroSLF slf_frame; /* saved slf frame */	270	struct CoroSLF slf_frame; /* saved slf frame */
248	AV *mainstack;	271	AV *mainstack;
249	perl_slots *slot; /* basically the saved sp */	272	perl_slots *slot; /* basically the saved sp */
…		…
263	SV *except; /* exception to be thrown */	286	SV *except; /* exception to be thrown */
264	SV *rouse_cb;	287	SV *rouse_cb;
265		288
266	/* async_pool */	289	/* async_pool */
267	SV *saved_deffh;	290	SV *saved_deffh;
		291	SV *invoke_cb;
		292	AV *invoke_av;
		293
		294	/* on_enter/on_leave */
		295	AV *on_enter;
		296	AV *on_leave;
268		297
269	/* linked list */	298	/* linked list */
270	struct coro *next, *prev;	299	struct coro *next, *prev;
271	};	300	};
272		301
…		…
288	#define PRIO_MIN -4	317	#define PRIO_MIN -4
289		318
290	/* for Coro.pm */	319	/* for Coro.pm */
291	static SV *coro_current;	320	static SV *coro_current;
292	static SV *coro_readyhook;	321	static SV *coro_readyhook;
293	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	322	static struct coro *coro_ready [PRIO_MAX - PRIO_MIN + 1][2]; /* head|tail */
		323	static CV *cv_coro_run, *cv_coro_terminate;
294	static struct coro *coro_first;	324	static struct coro *coro_first;
295	#define coro_nready coroapi.nready	325	#define coro_nready coroapi.nready
296		326
297	/** lowlevel stuff **********************************************************/	327	/** lowlevel stuff **********************************************************/
298		328
…		…
326	return get_hv (name, create);	356	return get_hv (name, create);
327	}	357	}
328		358
329	/* may croak */	359	/* may croak */
330	INLINE CV *	360	INLINE CV *
331	coro_sv_2cv (SV *sv)	361	coro_sv_2cv (pTHX_ SV *sv)
332	{	362	{
333	HV *st;	363	HV *st;
334	GV *gvp;	364	GV *gvp;
335	return sv_2cv (sv, &st, &gvp, 0);	365	CV *cv = sv_2cv (sv, &st, &gvp, 0);
		366
		367	if (!cv)
		368	croak ("code reference expected");
		369
		370	return cv;
336	}	371	}
		372
		373	/*****************************************************************************/
		374	/* magic glue */
		375
		376	#define CORO_MAGIC_type_cv 26
		377	#define CORO_MAGIC_type_state PERL_MAGIC_ext
		378
		379	#define CORO_MAGIC_NN(sv, type) \
		380	(expect_true (SvMAGIC (sv)->mg_type == type) \
		381	? SvMAGIC (sv) \
		382	: mg_find (sv, type))
		383
		384	#define CORO_MAGIC(sv, type) \
		385	(expect_true (SvMAGIC (sv)) \
		386	? CORO_MAGIC_NN (sv, type) \
		387	: 0)
		388
		389	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		390	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
		391
		392	INLINE struct coro *
		393	SvSTATE_ (pTHX_ SV *coro)
		394	{
		395	HV *stash;
		396	MAGIC *mg;
		397
		398	if (SvROK (coro))
		399	coro = SvRV (coro);
		400
		401	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		402	croak ("Coro::State object required");
		403
		404	stash = SvSTASH (coro);
		405	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		406	{
		407	/* very slow, but rare, check */
		408	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		409	croak ("Coro::State object required");
		410	}
		411
		412	mg = CORO_MAGIC_state (coro);
		413	return (struct coro *)mg->mg_ptr;
		414	}
		415
		416	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		417
		418	/* faster than SvSTATE, but expects a coroutine hv */
		419	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
		420	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
		421
		422	/*****************************************************************************/
		423	/* padlist management and caching */
337		424
338	static AV *	425	static AV *
339	coro_clone_padlist (pTHX_ CV *cv)	426	coro_derive_padlist (pTHX_ CV *cv)
340	{	427	{
341	AV *padlist = CvPADLIST (cv);	428	AV *padlist = CvPADLIST (cv);
342	AV *newpadlist, *newpad;	429	AV *newpadlist, *newpad;
343		430
344	newpadlist = newAV ();	431	newpadlist = newAV ();
…		…
349	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	436	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
350	#endif	437	#endif
351	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	438	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
352	--AvFILLp (padlist);	439	--AvFILLp (padlist);
353		440
354	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));	441	av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
355	av_store (newpadlist, 1, (SV *)newpad);	442	av_store (newpadlist, 1, (SV *)newpad);
356		443
357	return newpadlist;	444	return newpadlist;
358	}	445	}
359		446
360	static void	447	static void
361	free_padlist (pTHX_ AV *padlist)	448	free_padlist (pTHX_ AV *padlist)
362	{	449	{
363	/* may be during global destruction */	450	/* may be during global destruction */
364	if (SvREFCNT (padlist))	451	if (!IN_DESTRUCT)
365	{	452	{
366	I32 i = AvFILLp (padlist);	453	I32 i = AvFILLp (padlist);
367	while (i >= 0)	454
		455	while (i > 0) /* special-case index 0 */
368	{	456	{
369	SV **svp = av_fetch (padlist, i--, FALSE);	457	/* we try to be extra-careful here */
370	if (svp)	458	AV *av = (AV *)AvARRAY (padlist)[i--];
371	{	459	I32 j = AvFILLp (av);
372	SV *sv;	460
373	while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))	461	while (j >= 0)
		462	SvREFCNT_dec (AvARRAY (av)[j--]);
		463
		464	AvFILLp (av) = -1;
374	SvREFCNT_dec (sv);	465	SvREFCNT_dec (av);
375
376	SvREFCNT_dec (*svp);
377	}
378	}	466	}
379		467
		468	SvREFCNT_dec (AvARRAY (padlist)[0]);
		469
		470	AvFILLp (padlist) = -1;
380	SvREFCNT_dec ((SV*)padlist);	471	SvREFCNT_dec ((SV*)padlist);
381	}	472	}
382	}	473	}
383		474
384	static int	475	static int
…		…
393		484
394	SvREFCNT_dec (av); /* sv_magicext increased the refcount */	485	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
395		486
396	return 0;	487	return 0;
397	}	488	}
398
399	#define CORO_MAGIC_type_cv 26
400	#define CORO_MAGIC_type_state PERL_MAGIC_ext
401		489
402	static MGVTBL coro_cv_vtbl = {	490	static MGVTBL coro_cv_vtbl = {
403	0, 0, 0, 0,	491	0, 0, 0, 0,
404	coro_cv_free	492	coro_cv_free
405	};	493	};
406
407	#define CORO_MAGIC_NN(sv, type) \
408	(expect_true (SvMAGIC (sv)->mg_type == type) \
409	? SvMAGIC (sv) \
410	: mg_find (sv, type))
411
412	#define CORO_MAGIC(sv, type) \
413	(expect_true (SvMAGIC (sv)) \
414	? CORO_MAGIC_NN (sv, type) \
415	: 0)
416
417	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
418	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
419
420	INLINE struct coro *
421	SvSTATE_ (pTHX_ SV *coro)
422	{
423	HV *stash;
424	MAGIC *mg;
425
426	if (SvROK (coro))
427	coro = SvRV (coro);
428
429	if (expect_false (SvTYPE (coro) != SVt_PVHV))
430	croak ("Coro::State object required");
431
432	stash = SvSTASH (coro);
433	if (expect_false (stash != coro_stash && stash != coro_state_stash))
434	{
435	/* very slow, but rare, check */
436	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
437	croak ("Coro::State object required");
438	}
439
440	mg = CORO_MAGIC_state (coro);
441	return (struct coro *)mg->mg_ptr;
442	}
443
444	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
445
446	/* faster than SvSTATE, but expects a coroutine hv */
447	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
448	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
449		494
450	/* the next two functions merely cache the padlists */	495	/* the next two functions merely cache the padlists */
451	static void	496	static void
452	get_padlist (pTHX_ CV *cv)	497	get_padlist (pTHX_ CV *cv)
453	{	498	{
…		…
464	CV *cp = Perl_cv_clone (aTHX_ cv);	509	CV *cp = Perl_cv_clone (aTHX_ cv);
465	CvPADLIST (cv) = CvPADLIST (cp);	510	CvPADLIST (cv) = CvPADLIST (cp);
466	CvPADLIST (cp) = 0;	511	CvPADLIST (cp) = 0;
467	SvREFCNT_dec (cp);	512	SvREFCNT_dec (cp);
468	#else	513	#else
469	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	514	CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
470	#endif	515	#endif
471	}	516	}
472	}	517	}
473		518
474	static void	519	static void
…		…
481	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);	526	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
482		527
483	av = (AV *)mg->mg_obj;	528	av = (AV *)mg->mg_obj;
484		529
485	if (expect_false (AvFILLp (av) >= AvMAX (av)))	530	if (expect_false (AvFILLp (av) >= AvMAX (av)))
486	av_extend (av, AvMAX (av) + 1);	531	av_extend (av, AvFILLp (av) + 1);
487		532
488	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	533	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
489	}	534	}
490		535
491	/** load & save, init *******************************************************/	536	/** load & save, init *******************************************************/
		537
		538	static void
		539	on_enterleave_call (pTHX_ SV *cb);
492		540
493	static void	541	static void
494	load_perl (pTHX_ Coro__State c)	542	load_perl (pTHX_ Coro__State c)
495	{	543	{
496	perl_slots *slot = c->slot;	544	perl_slots *slot = c->slot;
497	c->slot = 0;	545	c->slot = 0;
498		546
499	PL_mainstack = c->mainstack;	547	PL_mainstack = c->mainstack;
500		548
501	GvSV (PL_defgv) = slot->defsv;	549	GvSV (PL_defgv) = slot->defsv;
502	GvAV (PL_defgv) = slot->defav;	550	GvAV (PL_defgv) = slot->defav;
503	GvSV (PL_errgv) = slot->errsv;	551	GvSV (PL_errgv) = slot->errsv;
504	GvSV (irsgv) = slot->irsgv;	552	GvSV (irsgv) = slot->irsgv;
		553	GvHV (PL_hintgv) = slot->hinthv;
505		554
506	#define VAR(name,type) PL_ ## name = slot->name;	555	#define VAR(name,type) PL_ ## name = slot->name;
507	# include "state.h"	556	# include "state.h"
508	#undef VAR	557	#undef VAR
509		558
…		…
523	PUTBACK;	572	PUTBACK;
524	}	573	}
525		574
526	slf_frame = c->slf_frame;	575	slf_frame = c->slf_frame;
527	CORO_THROW = c->except;	576	CORO_THROW = c->except;
		577
		578	if (expect_false (c->on_enter))
		579	{
		580	int i;
		581
		582	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
		583	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
		584	}
528	}	585	}
529		586
530	static void	587	static void
531	save_perl (pTHX_ Coro__State c)	588	save_perl (pTHX_ Coro__State c)
532	{	589	{
		590	if (expect_false (c->on_leave))
		591	{
		592	int i;
		593
		594	for (i = AvFILLp (c->on_leave); i >= 0; --i)
		595	on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
		596	}
		597
533	c->except = CORO_THROW;	598	c->except = CORO_THROW;
534	c->slf_frame = slf_frame;	599	c->slf_frame = slf_frame;
535		600
536	{	601	{
537	dSP;	602	dSP;
…		…
595	c->mainstack = PL_mainstack;	660	c->mainstack = PL_mainstack;
596		661
597	{	662	{
598	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	663	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
599		664
600	slot->defav = GvAV (PL_defgv);	665	slot->defav = GvAV (PL_defgv);
601	slot->defsv = DEFSV;	666	slot->defsv = DEFSV;
602	slot->errsv = ERRSV;	667	slot->errsv = ERRSV;
603	slot->irsgv = GvSV (irsgv);	668	slot->irsgv = GvSV (irsgv);
		669	slot->hinthv = GvHV (PL_hintgv);
604		670
605	#define VAR(name,type) slot->name = PL_ ## name;	671	#define VAR(name,type) slot->name = PL_ ## name;
606	# include "state.h"	672	# include "state.h"
607	#undef VAR	673	#undef VAR
608	}	674	}
…		…
686	#if !PERL_VERSION_ATLEAST (5,10,0)	752	#if !PERL_VERSION_ATLEAST (5,10,0)
687	Safefree (PL_retstack);	753	Safefree (PL_retstack);
688	#endif	754	#endif
689	}	755	}
690		756
		757	#define CORO_RSS \
		758	rss += sizeof (SYM (curstackinfo)); \
		759	rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
		760	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
		761	rss += SYM (tmps_max) * sizeof (SV *); \
		762	rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
		763	rss += SYM (scopestack_max) * sizeof (I32); \
		764	rss += SYM (savestack_max) * sizeof (ANY);
		765
691	static size_t	766	static size_t
692	coro_rss (pTHX_ struct coro *coro)	767	coro_rss (pTHX_ struct coro *coro)
693	{	768	{
694	size_t rss = sizeof (*coro);	769	size_t rss = sizeof (*coro);
695		770
696	if (coro->mainstack)	771	if (coro->mainstack)
697	{	772	{
698	perl_slots tmp_slot;
699	perl_slots *slot;
700
701	if (coro->flags & CF_RUNNING)	773	if (coro->flags & CF_RUNNING)
702	{	774	{
703	slot = &tmp_slot;	775	#define SYM(sym) PL_ ## sym
704		776	CORO_RSS;
705	#define VAR(name,type) slot->name = PL_ ## name;
706	# include "state.h"
707	#undef VAR	777	#undef SYM
708	}	778	}
709	else	779	else
710	slot = coro->slot;
711
712	if (slot)
713	{	780	{
714	rss += sizeof (slot->curstackinfo);	781	#define SYM(sym) coro->slot->sym
715	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	782	CORO_RSS;
716	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	783	#undef SYM
717	rss += slot->tmps_max * sizeof (SV *);
718	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
719	rss += slot->scopestack_max * sizeof (I32);
720	rss += slot->savestack_max * sizeof (ANY);
721
722	#if !PERL_VERSION_ATLEAST (5,10,0)
723	rss += slot->retstack_max * sizeof (OP *);
724	#endif
725	}	784	}
726	}	785	}
727		786
728	return rss;	787	return rss;
729	}	788	}
…		…
742	#endif	801	#endif
743		802
744	/*	803	/*
745	* This overrides the default magic get method of %SIG elements.	804	* 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	805	* 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	806	* and instead of trying to save and restore the hash elements, we just provide
748	* readback here.	807	* 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	*/	808	*/
753	static int	809	static int
754	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	810	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
755	{	811	{
756	const char *s = MgPV_nolen_const (mg);	812	const char *s = MgPV_nolen_const (mg);
…		…
809	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	865	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
810		866
811	if (svp)	867	if (svp)
812	{	868	{
813	SV *old = *svp;	869	SV *old = *svp;
814	*svp = newSVsv (sv);	870	*svp = SvOK (sv) ? newSVsv (sv) : 0;
815	SvREFCNT_dec (old);	871	SvREFCNT_dec (old);
816	return 0;	872	return 0;
817	}	873	}
818	}	874	}
819		875
…		…
829		885
830	static int	886	static int
831	slf_check_nop (pTHX_ struct CoroSLF *frame)	887	slf_check_nop (pTHX_ struct CoroSLF *frame)
832	{	888	{
833	return 0;	889	return 0;
		890	}
		891
		892	static int
		893	slf_check_repeat (pTHX_ struct CoroSLF *frame)
		894	{
		895	return 1;
834	}	896	}
835		897
836	static UNOP coro_setup_op;	898	static UNOP coro_setup_op;
837		899
838	static void NOINLINE /* noinline to keep it out of the transfer fast path */	900	static void NOINLINE /* noinline to keep it out of the transfer fast path */
…		…
845		907
846	PL_runops = RUNOPS_DEFAULT;	908	PL_runops = RUNOPS_DEFAULT;
847	PL_curcop = &PL_compiling;	909	PL_curcop = &PL_compiling;
848	PL_in_eval = EVAL_NULL;	910	PL_in_eval = EVAL_NULL;
849	PL_comppad = 0;	911	PL_comppad = 0;
		912	PL_comppad_name = 0;
		913	PL_comppad_name_fill = 0;
		914	PL_comppad_name_floor = 0;
850	PL_curpm = 0;	915	PL_curpm = 0;
851	PL_curpad = 0;	916	PL_curpad = 0;
852	PL_localizing = 0;	917	PL_localizing = 0;
853	PL_dirty = 0;	918	PL_dirty = 0;
854	PL_restartop = 0;	919	PL_restartop = 0;
855	#if PERL_VERSION_ATLEAST (5,10,0)	920	#if PERL_VERSION_ATLEAST (5,10,0)
856	PL_parser = 0;	921	PL_parser = 0;
857	#endif	922	#endif
		923	PL_hints = 0;
858		924
859	/* recreate the die/warn hooks */	925	/* recreate the die/warn hooks */
860	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );	926	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);	927	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
862		928
863	GvSV (PL_defgv) = newSV (0);	929	GvSV (PL_defgv) = newSV (0);
864	GvAV (PL_defgv) = coro->args; coro->args = 0;	930	GvAV (PL_defgv) = coro->args; coro->args = 0;
865	GvSV (PL_errgv) = newSV (0);	931	GvSV (PL_errgv) = newSV (0);
866	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	932	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		933	GvHV (PL_hintgv) = 0;
867	PL_rs = newSVsv (GvSV (irsgv));	934	PL_rs = newSVsv (GvSV (irsgv));
868	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	935	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
869		936
870	{	937	{
871	dSP;	938	dSP;
872	UNOP myop;	939	UNOP myop;
873		940
874	Zero (&myop, 1, UNOP);	941	Zero (&myop, 1, UNOP);
875	myop.op_next = Nullop;	942	myop.op_next = Nullop;
		943	myop.op_type = OP_ENTERSUB;
876	myop.op_flags = OPf_WANT_VOID;	944	myop.op_flags = OPf_WANT_VOID;
877		945
878	PUSHMARK (SP);	946	PUSHMARK (SP);
879	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	947	PUSHs ((SV *)coro->startcv);
880	PUTBACK;	948	PUTBACK;
881	PL_op = (OP *)&myop;	949	PL_op = (OP *)&myop;
882	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	950	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
883	SPAGAIN;
884	}	951	}
885		952
886	/* this newly created coroutine might be run on an existing cctx which most	953	/* this newly created coroutine might be run on an existing cctx which most
887	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.	954	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
888	*/	955	*/
889	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	956	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 */	957	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
891		958
892	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	959	/* 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;	960	coro_setup_op.op_next = PL_op;
894	coro_setup_op.op_type = OP_CUSTOM;	961	coro_setup_op.op_type = OP_ENTERSUB;
895	coro_setup_op.op_ppaddr = pp_slf;	962	coro_setup_op.op_ppaddr = pp_slf;
896	/* no flags required, as an init function won't be called */	963	/* no flags etc. required, as an init function won't be called */
897		964
898	PL_op = (OP *)&coro_setup_op;	965	PL_op = (OP *)&coro_setup_op;
899		966
900	/* copy throw, in case it was set before coro_setup */	967	/* copy throw, in case it was set before coro_setup */
901	CORO_THROW = coro->except;	968	CORO_THROW = coro->except;
902	}	969	}
903		970
904	static void	971	static void
905	coro_destruct (pTHX_ struct coro *coro)	972	coro_unwind_stacks (pTHX)
906	{	973	{
907	if (!IN_DESTRUCT)	974	if (!IN_DESTRUCT)
908	{	975	{
909	/* restore all saved variables and stuff */	976	/* restore all saved variables and stuff */
910	LEAVE_SCOPE (0);	977	LEAVE_SCOPE (0);
…		…
918	POPSTACK_TO (PL_mainstack);	985	POPSTACK_TO (PL_mainstack);
919		986
920	/* unwind main stack */	987	/* unwind main stack */
921	dounwind (-1);	988	dounwind (-1);
922	}	989	}
		990	}
		991
		992	static void
		993	coro_destruct_perl (pTHX_ struct coro *coro)
		994	{
		995	coro_unwind_stacks (aTHX);
923		996
924	SvREFCNT_dec (GvSV (PL_defgv));	997	SvREFCNT_dec (GvSV (PL_defgv));
925	SvREFCNT_dec (GvAV (PL_defgv));	998	SvREFCNT_dec (GvAV (PL_defgv));
926	SvREFCNT_dec (GvSV (PL_errgv));	999	SvREFCNT_dec (GvSV (PL_errgv));
927	SvREFCNT_dec (PL_defoutgv);	1000	SvREFCNT_dec (PL_defoutgv);
928	SvREFCNT_dec (PL_rs);	1001	SvREFCNT_dec (PL_rs);
929	SvREFCNT_dec (GvSV (irsgv));	1002	SvREFCNT_dec (GvSV (irsgv));
		1003	SvREFCNT_dec (GvHV (PL_hintgv));
930		1004
931	SvREFCNT_dec (PL_diehook);	1005	SvREFCNT_dec (PL_diehook);
932	SvREFCNT_dec (PL_warnhook);	1006	SvREFCNT_dec (PL_warnhook);
933		1007
934	SvREFCNT_dec (CORO_THROW);
935	SvREFCNT_dec (coro->saved_deffh);	1008	SvREFCNT_dec (coro->saved_deffh);
936	SvREFCNT_dec (coro->rouse_cb);	1009	SvREFCNT_dec (coro->rouse_cb);
		1010	SvREFCNT_dec (coro->invoke_cb);
		1011	SvREFCNT_dec (coro->invoke_av);
937		1012
938	coro_destruct_stacks (aTHX);	1013	coro_destruct_stacks (aTHX);
939	}	1014	}
940		1015
941	INLINE void	1016	INLINE void
…		…
951	static int	1026	static int
952	runops_trace (pTHX)	1027	runops_trace (pTHX)
953	{	1028	{
954	COP *oldcop = 0;	1029	COP *oldcop = 0;
955	int oldcxix = -2;	1030	int oldcxix = -2;
956	struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
957	coro_cctx *cctx = coro->cctx;
958		1031
959	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))	1032	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
960	{	1033	{
961	PERL_ASYNC_CHECK ();	1034	PERL_ASYNC_CHECK ();
962		1035
963	if (cctx->flags & CC_TRACE_ALL)	1036	if (cctx_current->flags & CC_TRACE_ALL)
964	{	1037	{
965	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)	1038	if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
966	{	1039	{
967	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1040	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
968	SV **bot, **top;	1041	SV **bot, **top;
969	AV *av = newAV (); /* return values */	1042	AV *av = newAV (); /* return values */
970	SV **cb;	1043	SV **cb;
…		…
1007		1080
1008	if (PL_curcop != &PL_compiling)	1081	if (PL_curcop != &PL_compiling)
1009	{	1082	{
1010	SV **cb;	1083	SV **cb;
1011		1084
1012	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)	1085	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1013	{	1086	{
1014	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1087	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1015		1088
1016	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1089	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1017	{	1090	{
1018	runops_proc_t old_runops = PL_runops;
1019	dSP;	1091	dSP;
1020	GV *gv = CvGV (cx->blk_sub.cv);	1092	GV *gv = CvGV (cx->blk_sub.cv);
1021	SV *fullname = sv_2mortal (newSV (0));	1093	SV *fullname = sv_2mortal (newSV (0));
1022		1094
1023	if (isGV (gv))	1095	if (isGV (gv))
…		…
1041	}	1113	}
1042		1114
1043	oldcxix = cxstack_ix;	1115	oldcxix = cxstack_ix;
1044	}	1116	}
1045		1117
1046	if (cctx->flags & CC_TRACE_LINE)	1118	if (cctx_current->flags & CC_TRACE_LINE)
1047	{	1119	{
1048	dSP;	1120	dSP;
1049		1121
1050	PL_runops = RUNOPS_DEFAULT;	1122	PL_runops = RUNOPS_DEFAULT;
1051	ENTER;	1123	ENTER;
…		…
1070		1142
1071	TAINT_NOT;	1143	TAINT_NOT;
1072	return 0;	1144	return 0;
1073	}	1145	}
1074		1146
1075	static struct coro_cctx *cctx_ssl_cctx;
1076	static struct CoroSLF cctx_ssl_frame;	1147	static struct CoroSLF cctx_ssl_frame;
1077		1148
1078	static void	1149	static void
1079	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)	1150	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1080	{	1151	{
1081	ta->prev = (struct coro *)cctx_ssl_cctx;
1082	ta->next = 0;	1152	ta->prev = 0;
1083	}	1153	}
1084		1154
1085	static int	1155	static int
1086	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)	1156	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1087	{	1157	{
…		…
1090	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */	1160	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1091	}	1161	}
1092		1162
1093	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */	1163	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1094	static void NOINLINE	1164	static void NOINLINE
1095	cctx_prepare (pTHX_ coro_cctx *cctx)	1165	cctx_prepare (pTHX)
1096	{	1166	{
1097	PL_top_env = &PL_start_env;	1167	PL_top_env = &PL_start_env;
1098		1168
1099	if (cctx->flags & CC_TRACE)	1169	if (cctx_current->flags & CC_TRACE)
1100	PL_runops = runops_trace;	1170	PL_runops = runops_trace;
1101		1171
1102	/* we already must be executing an SLF op, there is no other valid way	1172	/* we already must be executing an SLF op, there is no other valid way
1103	* that can lead to creation of a new cctx */	1173	* that can lead to creation of a new cctx */
1104	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",	1174	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1105	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));	1175	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1106		1176
1107	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */	1177	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1108	cctx_ssl_cctx = cctx;
1109	cctx_ssl_frame = slf_frame;	1178	cctx_ssl_frame = slf_frame;
1110		1179
1111	slf_frame.prepare = slf_prepare_set_stacklevel;	1180	slf_frame.prepare = slf_prepare_set_stacklevel;
1112	slf_frame.check = slf_check_set_stacklevel;	1181	slf_frame.check = slf_check_set_stacklevel;
1113	}	1182	}
…		…
1136	/* normally we would need to skip the entersub here */	1205	/* normally we would need to skip the entersub here */
1137	/* not doing so will re-execute it, which is exactly what we want */	1206	/* not doing so will re-execute it, which is exactly what we want */
1138	/* PL_nop = PL_nop->op_next */	1207	/* PL_nop = PL_nop->op_next */
1139		1208
1140	/* inject a fake subroutine call to cctx_init */	1209	/* inject a fake subroutine call to cctx_init */
1141	cctx_prepare (aTHX_ (coro_cctx *)arg);	1210	cctx_prepare (aTHX);
1142		1211
1143	/* cctx_run is the alternative tail of transfer() */	1212	/* cctx_run is the alternative tail of transfer() */
1144	transfer_tail (aTHX);	1213	transfer_tail (aTHX);
1145		1214
1146	/* somebody or something will hit me for both perl_run and PL_restartop */	1215	/* somebody or something will hit me for both perl_run and PL_restartop */
1147	PL_restartop = PL_op;	1216	PL_restartop = PL_op;
1148	perl_run (PL_curinterp);	1217	perl_run (PL_curinterp);
		1218	/*
		1219	* Unfortunately, there is no way to get at the return values of the
		1220	* coro body here, as perl_run destroys these
		1221	*/
1149		1222
1150	/*	1223	/*
1151	* If perl-run returns we assume exit() was being called or the coro	1224	* If perl-run returns we assume exit() was being called or the coro
1152	* fell off the end, which seems to be the only valid (non-bug)	1225	* fell off the end, which seems to be the only valid (non-bug)
1153	* reason for perl_run to return. We try to exit by jumping to the	1226	* reason for perl_run to return. We try to exit by jumping to the
1154	* bootstrap-time "top" top_env, as we cannot restore the "main"	1227	* bootstrap-time "top" top_env, as we cannot restore the "main"
1155	* coroutine as Coro has no such concept	1228	* coroutine as Coro has no such concept.
		1229	* This actually isn't valid with the pthread backend, but OSes requiring
		1230	* that backend are too broken to do it in a standards-compliant way.
1156	*/	1231	*/
1157	PL_top_env = main_top_env;	1232	PL_top_env = main_top_env;
1158	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1233	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1159	}	1234	}
1160	}	1235	}
…		…
1237	cctx_destroy (coro_cctx *cctx)	1312	cctx_destroy (coro_cctx *cctx)
1238	{	1313	{
1239	if (!cctx)	1314	if (!cctx)
1240	return;	1315	return;
1241		1316
		1317	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
		1318
1242	--cctx_count;	1319	--cctx_count;
1243	coro_destroy (&cctx->cctx);	1320	coro_destroy (&cctx->cctx);
1244		1321
1245	/* coro_transfer creates new, empty cctx's */	1322	/* coro_transfer creates new, empty cctx's */
1246	if (cctx->sptr)	1323	if (cctx->sptr)
…		…
1309	/* TODO: throwing up here is considered harmful */	1386	/* TODO: throwing up here is considered harmful */
1310		1387
1311	if (expect_true (prev != next))	1388	if (expect_true (prev != next))
1312	{	1389	{
1313	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1390	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1314	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,");	1391	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1315		1392
1316	if (expect_false (next->flags & CF_RUNNING))
1317	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1318
1319	if (expect_false (next->flags & CF_DESTROYED))	1393	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1320	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,");	1394	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1321		1395
1322	#if !PERL_VERSION_ATLEAST (5,10,0)	1396	#if !PERL_VERSION_ATLEAST (5,10,0)
1323	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1397	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1324	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");	1398	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1325	#endif	1399	#endif
…		…
1331	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)	1405	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1332	{	1406	{
1333	dSTACKLEVEL;	1407	dSTACKLEVEL;
1334		1408
1335	/* sometimes transfer is only called to set idle_sp */	1409	/* sometimes transfer is only called to set idle_sp */
1336	if (expect_false (!next))	1410	if (expect_false (!prev))
1337	{	1411	{
1338	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1412	cctx_current->idle_sp = STACKLEVEL;
1339	assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */	1413	assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1340	}	1414	}
1341	else if (expect_true (prev != next))	1415	else if (expect_true (prev != next))
1342	{	1416	{
1343	coro_cctx *prev__cctx;	1417	coro_cctx *cctx_prev;
1344		1418
1345	if (expect_false (prev->flags & CF_NEW))	1419	if (expect_false (prev->flags & CF_NEW))
1346	{	1420	{
1347	/* create a new empty/source context */	1421	/* create a new empty/source context */
1348	prev->cctx = cctx_new_empty ();
1349	prev->flags &= ~CF_NEW;	1422	prev->flags &= ~CF_NEW;
1350	prev->flags |= CF_RUNNING;	1423	prev->flags |= CF_RUNNING;
1351	}	1424	}
1352		1425
1353	prev->flags &= ~CF_RUNNING;	1426	prev->flags &= ~CF_RUNNING;
…		…
1364	coro_setup (aTHX_ next);	1437	coro_setup (aTHX_ next);
1365	}	1438	}
1366	else	1439	else
1367	load_perl (aTHX_ next);	1440	load_perl (aTHX_ next);
1368		1441
1369	prev__cctx = prev->cctx;
1370
1371	/* possibly untie and reuse the cctx */	1442	/* possibly untie and reuse the cctx */
1372	if (expect_true (	1443	if (expect_true (
1373	prev__cctx->idle_sp == STACKLEVEL	1444	cctx_current->idle_sp == STACKLEVEL
1374	&& !(prev__cctx->flags & CC_TRACE)	1445	&& !(cctx_current->flags & CC_TRACE)
1375	&& !force_cctx	1446	&& !force_cctx
1376	))	1447	))
1377	{	1448	{
1378	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1449	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1379	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));	1450	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1380		1451
1381	prev->cctx = 0;
1382
1383	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1452	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1384	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1453	/* without this the next cctx_get might destroy the running cctx while still in use */
1385	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1454	if (expect_false (CCTX_EXPIRED (cctx_current)))
1386	if (!next->cctx)	1455	if (expect_true (!next->cctx))
1387	next->cctx = cctx_get (aTHX);	1456	next->cctx = cctx_get (aTHX);
1388		1457
1389	cctx_put (prev__cctx);	1458	cctx_put (cctx_current);
1390	}	1459	}
		1460	else
		1461	prev->cctx = cctx_current;
1391		1462
1392	++next->usecount;	1463	++next->usecount;
1393		1464
1394	if (expect_true (!next->cctx))	1465	cctx_prev = cctx_current;
1395	next->cctx = cctx_get (aTHX);	1466	cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1396		1467
1397	if (expect_false (prev__cctx != next->cctx))	1468	next->cctx = 0;
		1469
		1470	if (expect_false (cctx_prev != cctx_current))
1398	{	1471	{
1399	prev__cctx->top_env = PL_top_env;	1472	cctx_prev->top_env = PL_top_env;
1400	PL_top_env = next->cctx->top_env;	1473	PL_top_env = cctx_current->top_env;
1401	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1474	coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1402	}	1475	}
1403		1476
1404	transfer_tail (aTHX);	1477	transfer_tail (aTHX);
1405	}	1478	}
1406	}	1479	}
…		…
1414	coro_state_destroy (pTHX_ struct coro *coro)	1487	coro_state_destroy (pTHX_ struct coro *coro)
1415	{	1488	{
1416	if (coro->flags & CF_DESTROYED)	1489	if (coro->flags & CF_DESTROYED)
1417	return 0;	1490	return 0;
1418		1491
1419	if (coro->on_destroy)	1492	if (coro->on_destroy && !PL_dirty)
1420	coro->on_destroy (aTHX_ coro);	1493	coro->on_destroy (aTHX_ coro);
1421		1494
1422	coro->flags |= CF_DESTROYED;	1495	coro->flags |= CF_DESTROYED;
1423		1496
1424	if (coro->flags & CF_READY)	1497	if (coro->flags & CF_READY)
…		…
1428	--coro_nready;	1501	--coro_nready;
1429	}	1502	}
1430	else	1503	else
1431	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */	1504	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1432		1505
1433	if (coro->mainstack && coro->mainstack != main_mainstack)	1506	if (coro->mainstack
		1507	&& coro->mainstack != main_mainstack
		1508	&& coro->slot
		1509	&& !PL_dirty)
1434	{	1510	{
1435	struct coro temp;	1511	struct coro *current = SvSTATE_current;
1436		1512
1437	assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));	1513	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1438		1514
1439	save_perl (aTHX_ &temp);	1515	save_perl (aTHX_ current);
1440	load_perl (aTHX_ coro);	1516	load_perl (aTHX_ coro);
1441		1517
1442	coro_destruct (aTHX_ coro);	1518	coro_destruct_perl (aTHX_ coro);
1443		1519
1444	load_perl (aTHX_ &temp);	1520	load_perl (aTHX_ current);
1445		1521
1446	coro->slot = 0;	1522	coro->slot = 0;
1447	}	1523	}
1448		1524
1449	cctx_destroy (coro->cctx);	1525	cctx_destroy (coro->cctx);
1450	SvREFCNT_dec (coro->startcv);	1526	SvREFCNT_dec (coro->startcv);
1451	SvREFCNT_dec (coro->args);	1527	SvREFCNT_dec (coro->args);
		1528	SvREFCNT_dec (CORO_THROW);
1452		1529
1453	if (coro->next) coro->next->prev = coro->prev;	1530	if (coro->next) coro->next->prev = coro->prev;
1454	if (coro->prev) coro->prev->next = coro->next;	1531	if (coro->prev) coro->prev->next = coro->next;
1455	if (coro == coro_first) coro_first = coro->next;	1532	if (coro == coro_first) coro_first = coro->next;
1456		1533
…		…
1538	/** Coro ********************************************************************/	1615	/** Coro ********************************************************************/
1539		1616
1540	INLINE void	1617	INLINE void
1541	coro_enq (pTHX_ struct coro *coro)	1618	coro_enq (pTHX_ struct coro *coro)
1542	{	1619	{
1543	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1620	struct coro **ready = coro_ready [coro->prio - PRIO_MIN];
1544	}
1545		1621
1546	INLINE SV *	1622	SvREFCNT_inc_NN (coro->hv);
		1623
		1624	coro->next_ready = 0;
		1625	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
		1626	ready [1] = coro;
		1627	}
		1628
		1629	INLINE struct coro *
1547	coro_deq (pTHX)	1630	coro_deq (pTHX)
1548	{	1631	{
1549	int prio;	1632	int prio;
1550		1633
1551	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1634	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1552	if (AvFILLp (coro_ready [prio]) >= 0)	1635	{
1553	return av_shift (coro_ready [prio]);	1636	struct coro **ready = coro_ready [prio];
		1637
		1638	if (ready [0])
		1639	{
		1640	struct coro *coro = ready [0];
		1641	ready [0] = coro->next_ready;
		1642	return coro;
		1643	}
		1644	}
1554		1645
1555	return 0;	1646	return 0;
1556	}	1647	}
1557		1648
1558	static int	1649	static int
…		…
1560	{	1651	{
1561	struct coro *coro;	1652	struct coro *coro;
1562	SV *sv_hook;	1653	SV *sv_hook;
1563	void (*xs_hook)(void);	1654	void (*xs_hook)(void);
1564		1655
1565	if (SvROK (coro_sv))
1566	coro_sv = SvRV (coro_sv);
1567
1568	coro = SvSTATE (coro_sv);	1656	coro = SvSTATE (coro_sv);
1569		1657
1570	if (coro->flags & CF_READY)	1658	if (coro->flags & CF_READY)
1571	return 0;	1659	return 0;
1572		1660
…		…
1603	api_is_ready (pTHX_ SV *coro_sv)	1691	api_is_ready (pTHX_ SV *coro_sv)
1604	{	1692	{
1605	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1693	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1606	}	1694	}
1607		1695
		1696	/* expects to own a reference to next->hv */
1608	INLINE void	1697	INLINE void
1609	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1698	prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1610	{	1699	{
1611	SV *prev_sv, *next_sv;
1612
1613	for (;;)
1614	{
1615	next_sv = coro_deq (aTHX);
1616
1617	/* nothing to schedule: call the idle handler */
1618	if (expect_false (!next_sv))
1619	{
1620	dSP;
1621
1622	ENTER;
1623	SAVETMPS;
1624
1625	PUSHMARK (SP);
1626	PUTBACK;
1627	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1628
1629	FREETMPS;
1630	LEAVE;
1631	continue;
1632	}
1633
1634	ta->next = SvSTATE_hv (next_sv);
1635
1636	/* cannot transfer to destroyed coros, skip and look for next */
1637	if (expect_false (ta->next->flags & CF_DESTROYED))
1638	{
1639	SvREFCNT_dec (next_sv);
1640	/* coro_nready has already been taken care of by destroy */
1641	continue;
1642	}
1643
1644	--coro_nready;
1645	break;
1646	}
1647
1648	/* free this only after the transfer */
1649	prev_sv = SvRV (coro_current);	1700	SV *prev_sv = SvRV (coro_current);
		1701
1650	ta->prev = SvSTATE_hv (prev_sv);	1702	ta->prev = SvSTATE_hv (prev_sv);
		1703	ta->next = next;
		1704
1651	TRANSFER_CHECK (*ta);	1705	TRANSFER_CHECK (*ta);
1652	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));	1706
1653	ta->next->flags &= ~CF_READY;
1654	SvRV_set (coro_current, next_sv);	1707	SvRV_set (coro_current, (SV *)next->hv);
1655		1708
1656	free_coro_mortal (aTHX);	1709	free_coro_mortal (aTHX);
1657	coro_mortal = prev_sv;	1710	coro_mortal = prev_sv;
1658	}	1711	}
1659		1712
		1713	static void
		1714	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
		1715	{
		1716	for (;;)
		1717	{
		1718	struct coro *next = coro_deq (aTHX);
		1719
		1720	if (expect_true (next))
		1721	{
		1722	/* cannot transfer to destroyed coros, skip and look for next */
		1723	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
		1724	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
		1725	else
		1726	{
		1727	next->flags &= ~CF_READY;
		1728	--coro_nready;
		1729
		1730	prepare_schedule_to (aTHX_ ta, next);
		1731	break;
		1732	}
		1733	}
		1734	else
		1735	{
		1736	/* nothing to schedule: call the idle handler */
		1737	if (SvROK (sv_idle)
		1738	&& SvOBJECT (SvRV (sv_idle)))
		1739	{
		1740	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
		1741	api_ready (aTHX_ SvRV (sv_idle));
		1742	--coro_nready;
		1743	}
		1744	else
		1745	{
		1746	dSP;
		1747
		1748	ENTER;
		1749	SAVETMPS;
		1750
		1751	PUSHMARK (SP);
		1752	PUTBACK;
		1753	call_sv (sv_idle, G_VOID | G_DISCARD);
		1754
		1755	FREETMPS;
		1756	LEAVE;
		1757	}
		1758	}
		1759	}
		1760	}
		1761
1660	INLINE void	1762	INLINE void
1661	prepare_cede (pTHX_ struct coro_transfer_args *ta)	1763	prepare_cede (pTHX_ struct coro_transfer_args *ta)
1662	{	1764	{
1663	api_ready (aTHX_ coro_current);	1765	api_ready (aTHX_ coro_current);
1664	prepare_schedule (aTHX_ ta);	1766	prepare_schedule (aTHX_ ta);
…		…
1683	{	1785	{
1684	struct coro_transfer_args ta;	1786	struct coro_transfer_args ta;
1685		1787
1686	prepare_schedule (aTHX_ &ta);	1788	prepare_schedule (aTHX_ &ta);
1687	TRANSFER (ta, 1);	1789	TRANSFER (ta, 1);
		1790	}
		1791
		1792	static void
		1793	api_schedule_to (pTHX_ SV *coro_sv)
		1794	{
		1795	struct coro_transfer_args ta;
		1796	struct coro *next = SvSTATE (coro_sv);
		1797
		1798	SvREFCNT_inc_NN (coro_sv);
		1799	prepare_schedule_to (aTHX_ &ta, next);
1688	}	1800	}
1689		1801
1690	static int	1802	static int
1691	api_cede (pTHX)	1803	api_cede (pTHX)
1692	{	1804	{
…		…
1721	static void	1833	static void
1722	api_trace (pTHX_ SV *coro_sv, int flags)	1834	api_trace (pTHX_ SV *coro_sv, int flags)
1723	{	1835	{
1724	struct coro *coro = SvSTATE (coro_sv);	1836	struct coro *coro = SvSTATE (coro_sv);
1725		1837
		1838	if (coro->flags & CF_RUNNING)
		1839	croak ("cannot enable tracing on a running coroutine, caught");
		1840
1726	if (flags & CC_TRACE)	1841	if (flags & CC_TRACE)
1727	{	1842	{
1728	if (!coro->cctx)	1843	if (!coro->cctx)
1729	coro->cctx = cctx_new_run ();	1844	coro->cctx = cctx_new_run ();
1730	else if (!(coro->cctx->flags & CC_TRACE))	1845	else if (!(coro->cctx->flags & CC_TRACE))
1731	croak ("cannot enable tracing on coroutine with custom stack,");	1846	croak ("cannot enable tracing on coroutine with custom stack, caught");
1732		1847
1733	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));	1848	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1734	}	1849	}
1735	else if (coro->cctx && coro->cctx->flags & CC_TRACE)	1850	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1736	{	1851	{
…		…
1741	else	1856	else
1742	coro->slot->runops = RUNOPS_DEFAULT;	1857	coro->slot->runops = RUNOPS_DEFAULT;
1743	}	1858	}
1744	}	1859	}
1745		1860
		1861	static void
		1862	coro_call_on_destroy (pTHX_ struct coro *coro)
		1863	{
		1864	SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
		1865	SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
		1866
		1867	if (on_destroyp)
		1868	{
		1869	AV *on_destroy = (AV *)SvRV (*on_destroyp);
		1870
		1871	while (AvFILLp (on_destroy) >= 0)
		1872	{
		1873	dSP; /* don't disturb outer sp */
		1874	SV *cb = av_pop (on_destroy);
		1875
		1876	PUSHMARK (SP);
		1877
		1878	if (statusp)
		1879	{
		1880	int i;
		1881	AV *status = (AV *)SvRV (*statusp);
		1882	EXTEND (SP, AvFILLp (status) + 1);
		1883
		1884	for (i = 0; i <= AvFILLp (status); ++i)
		1885	PUSHs (AvARRAY (status)[i]);
		1886	}
		1887
		1888	PUTBACK;
		1889	call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
		1890	}
		1891	}
		1892	}
		1893
		1894	static void
		1895	slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1896	{
		1897	int i;
		1898	HV *hv = (HV *)SvRV (coro_current);
		1899	AV *av = newAV ();
		1900
		1901	av_extend (av, items - 1);
		1902	for (i = 0; i < items; ++i)
		1903	av_push (av, SvREFCNT_inc_NN (arg [i]));
		1904
		1905	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
		1906
		1907	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
		1908	api_ready (aTHX_ sv_manager);
		1909
		1910	frame->prepare = prepare_schedule;
		1911	frame->check = slf_check_repeat;
		1912
		1913	/* as a minor optimisation, we could unwind all stacks here */
		1914	/* but that puts extra pressure on pp_slf, and is not worth much */
		1915	/*coro_unwind_stacks (aTHX);*/
		1916	}
		1917
		1918	/*****************************************************************************/
		1919	/* async pool handler */
		1920
		1921	static int
		1922	slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
		1923	{
		1924	HV *hv = (HV *)SvRV (coro_current);
		1925	struct coro *coro = (struct coro *)frame->data;
		1926
		1927	if (!coro->invoke_cb)
		1928	return 1; /* loop till we have invoke */
		1929	else
		1930	{
		1931	hv_store (hv, "desc", sizeof ("desc") - 1,
		1932	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1933
		1934	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
		1935
		1936	{
		1937	dSP;
		1938	XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
		1939	PUTBACK;
		1940	}
		1941
		1942	SvREFCNT_dec (GvAV (PL_defgv));
		1943	GvAV (PL_defgv) = coro->invoke_av;
		1944	coro->invoke_av = 0;
		1945
		1946	return 0;
		1947	}
		1948	}
		1949
		1950	static void
		1951	slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1952	{
		1953	HV *hv = (HV *)SvRV (coro_current);
		1954	struct coro *coro = SvSTATE_hv ((SV *)hv);
		1955
		1956	if (expect_true (coro->saved_deffh))
		1957	{
		1958	/* subsequent iteration */
		1959	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
		1960	coro->saved_deffh = 0;
		1961
		1962	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
		1963	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1964	{
		1965	coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
		1966	coro->invoke_av = newAV ();
		1967
		1968	frame->prepare = prepare_nop;
		1969	}
		1970	else
		1971	{
		1972	av_clear (GvAV (PL_defgv));
		1973	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
		1974
		1975	coro->prio = 0;
		1976
		1977	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1978	api_trace (aTHX_ coro_current, 0);
		1979
		1980	frame->prepare = prepare_schedule;
		1981	av_push (av_async_pool, SvREFCNT_inc (hv));
		1982	}
		1983	}
		1984	else
		1985	{
		1986	/* first iteration, simply fall through */
		1987	frame->prepare = prepare_nop;
		1988	}
		1989
		1990	frame->check = slf_check_pool_handler;
		1991	frame->data = (void *)coro;
		1992	}
		1993
1746	/*****************************************************************************/	1994	/*****************************************************************************/
1747	/* rouse callback */	1995	/* rouse callback */
1748		1996
1749	#define CORO_MAGIC_type_rouse PERL_MAGIC_ext	1997	#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
1750		1998
…		…
1755	SV *data = (SV *)GENSUB_ARG;	2003	SV *data = (SV *)GENSUB_ARG;
1756		2004
1757	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2005	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1758	{	2006	{
1759	/* first call, set args */	2007	/* first call, set args */
1760	int i;	2008	SV *coro = SvRV (data);
1761	AV *av = newAV ();	2009	AV *av = newAV ();
1762	SV *coro = SvRV (data);
1763		2010
1764	SvRV_set (data, (SV *)av);	2011	SvRV_set (data, (SV *)av);
1765	api_ready (aTHX_ coro);
1766	SvREFCNT_dec (coro);
1767		2012
1768	/* better take a full copy of the arguments */	2013	/* better take a full copy of the arguments */
1769	while (items--)	2014	while (items--)
1770	av_store (av, items, newSVsv (ST (items)));	2015	av_store (av, items, newSVsv (ST (items)));
		2016
		2017	api_ready (aTHX_ coro);
		2018	SvREFCNT_dec (coro);
1771	}	2019	}
1772		2020
1773	XSRETURN_EMPTY;	2021	XSRETURN_EMPTY;
1774	}	2022	}
1775		2023
…		…
1792		2040
1793	EXTEND (SP, AvFILLp (av) + 1);	2041	EXTEND (SP, AvFILLp (av) + 1);
1794	for (i = 0; i <= AvFILLp (av); ++i)	2042	for (i = 0; i <= AvFILLp (av); ++i)
1795	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2043	PUSHs (sv_2mortal (AvARRAY (av)[i]));
1796		2044
1797	/* we have stolen the elements, so ste length to zero and free */	2045	/* we have stolen the elements, so set length to zero and free */
1798	AvFILLp (av) = -1;	2046	AvFILLp (av) = -1;
1799	av_undef (av);	2047	av_undef (av);
1800		2048
1801	PUTBACK;	2049	PUTBACK;
1802	}	2050	}
…		…
1906	static void	2154	static void
1907	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2155	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1908	{	2156	{
1909	frame->prepare = prepare_schedule;	2157	frame->prepare = prepare_schedule;
1910	frame->check = slf_check_nop;	2158	frame->check = slf_check_nop;
		2159	}
		2160
		2161	static void
		2162	slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
		2163	{
		2164	struct coro *next = (struct coro *)slf_frame.data;
		2165
		2166	SvREFCNT_inc_NN (next->hv);
		2167	prepare_schedule_to (aTHX_ ta, next);
		2168	}
		2169
		2170	static void
		2171	slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2172	{
		2173	if (!items)
		2174	croak ("Coro::schedule_to expects a coroutine argument, caught");
		2175
		2176	frame->data = (void *)SvSTATE (arg [0]);
		2177	frame->prepare = slf_prepare_schedule_to;
		2178	frame->check = slf_check_nop;
		2179	}
		2180
		2181	static void
		2182	slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2183	{
		2184	api_ready (aTHX_ SvRV (coro_current));
		2185
		2186	slf_init_schedule_to (aTHX_ frame, cv, arg, items);
1911	}	2187	}
1912		2188
1913	static void	2189	static void
1914	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2190	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1915	{	2191	{
…		…
2061	}	2337	}
2062	else	2338	else
2063	slf_argc = 0;	2339	slf_argc = 0;
2064		2340
2065	PL_op->op_ppaddr = pp_slf;	2341	PL_op->op_ppaddr = pp_slf;
2066	PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */	2342	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2067		2343
2068	PL_op = (OP *)&slf_restore;	2344	PL_op = (OP *)&slf_restore;
		2345	}
		2346
		2347	/*****************************************************************************/
		2348	/* dynamic wind */
		2349
		2350	static void
		2351	on_enterleave_call (pTHX_ SV *cb)
		2352	{
		2353	dSP;
		2354
		2355	PUSHSTACK;
		2356
		2357	PUSHMARK (SP);
		2358	PUTBACK;
		2359	call_sv (cb, G_VOID | G_DISCARD);
		2360	SPAGAIN;
		2361
		2362	POPSTACK;
		2363	}
		2364
		2365	static SV *
		2366	coro_avp_pop_and_free (pTHX_ AV **avp)
		2367	{
		2368	AV *av = *avp;
		2369	SV *res = av_pop (av);
		2370
		2371	if (AvFILLp (av) < 0)
		2372	{
		2373	*avp = 0;
		2374	SvREFCNT_dec (av);
		2375	}
		2376
		2377	return res;
		2378	}
		2379
		2380	static void
		2381	coro_pop_on_enter (pTHX_ void *coro)
		2382	{
		2383	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
		2384	SvREFCNT_dec (cb);
		2385	}
		2386
		2387	static void
		2388	coro_pop_on_leave (pTHX_ void *coro)
		2389	{
		2390	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
		2391	on_enterleave_call (aTHX_ sv_2mortal (cb));
2069	}	2392	}
2070		2393
2071	/*****************************************************************************/	2394	/*****************************************************************************/
2072	/* PerlIO::cede */	2395	/* PerlIO::cede */
2073		2396
…		…
2154	SV **ary;	2477	SV **ary;
2155		2478
2156	/* unfortunately, building manually saves memory */	2479	/* unfortunately, building manually saves memory */
2157	Newx (ary, 2, SV *);	2480	Newx (ary, 2, SV *);
2158	AvALLOC (av) = ary;	2481	AvALLOC (av) = ary;
		2482	#if PERL_VERSION_ATLEAST (5,10,0)
2159	/*AvARRAY (av) = ary;*/	2483	AvARRAY (av) = ary;
		2484	#else
2160	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */	2485	/* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
		2486	/* -DDEBUGGING flags this as a bug, despite it perfectly working */
		2487	SvPVX ((SV *)av) = (char *)ary;
		2488	#endif
2161	AvMAX (av) = 1;	2489	AvMAX (av) = 1;
2162	AvFILLp (av) = 0;	2490	AvFILLp (av) = 0;
2163	ary [0] = newSViv (count);	2491	ary [0] = newSViv (count);
2164		2492
2165	return newRV_noinc ((SV *)av);	2493	return newRV_noinc ((SV *)av);
…		…
2294	{	2622	{
2295	if (items >= 2)	2623	if (items >= 2)
2296	{	2624	{
2297	/* callback form */	2625	/* callback form */
2298	AV *av = (AV *)SvRV (arg [0]);	2626	AV *av = (AV *)SvRV (arg [0]);
2299	CV *cb_cv = coro_sv_2cv (arg [1]);	2627	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2300		2628
2301	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2629	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2302		2630
2303	if (SvIVX (AvARRAY (av)[0]) > 0)	2631	if (SvIVX (AvARRAY (av)[0]) > 0)
2304	coro_semaphore_adjust (aTHX_ av, 0);	2632	coro_semaphore_adjust (aTHX_ av, 0);
…		…
2390	dXSARGS;	2718	dXSARGS;
2391	AV *state = (AV *)GENSUB_ARG;	2719	AV *state = (AV *)GENSUB_ARG;
2392	SV *coro = av_pop (state);	2720	SV *coro = av_pop (state);
2393	SV *data_sv = newSV (sizeof (struct io_state));	2721	SV *data_sv = newSV (sizeof (struct io_state));
2394		2722
2395	av_extend (state, items);	2723	av_extend (state, items - 1);
2396		2724
2397	sv_upgrade (data_sv, SVt_PV);	2725	sv_upgrade (data_sv, SVt_PV);
2398	SvCUR_set (data_sv, sizeof (struct io_state));	2726	SvCUR_set (data_sv, sizeof (struct io_state));
2399	SvPOK_only (data_sv);	2727	SvPOK_only (data_sv);
2400		2728
…		…
2535	XSRETURN_EMPTY;	2863	XSRETURN_EMPTY;
2536	}	2864	}
2537		2865
2538	/*****************************************************************************/	2866	/*****************************************************************************/
2539		2867
		2868	#if CORO_CLONE
		2869	# include "clone.c"
		2870	#endif
		2871
2540	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	2872	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2541		2873
2542	PROTOTYPES: DISABLE	2874	PROTOTYPES: DISABLE
2543		2875
2544	BOOT:	2876	BOOT:
…		…
2548	coro_thx = PERL_GET_CONTEXT;	2880	coro_thx = PERL_GET_CONTEXT;
2549	# endif	2881	# endif
2550	#endif	2882	#endif
2551	BOOT_PAGESIZE;	2883	BOOT_PAGESIZE;
2552		2884
		2885	cctx_current = cctx_new_empty ();
		2886
2553	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);	2887	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2554	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);	2888	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2555		2889
2556	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;	2890	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2557	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;	2891	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
…		…
2576		2910
2577	{	2911	{
2578	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));	2912	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2579		2913
2580	if (!PL_custom_op_names) PL_custom_op_names = newHV ();	2914	if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2581	hv_store_ent (PL_custom_op_names, slf,	2915	hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2582	newSVpv ("coro_slf", 0), 0);
2583		2916
2584	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();	2917	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2585	hv_store_ent (PL_custom_op_descs, slf,	2918	hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2586	newSVpv ("coro schedule like function", 0), 0);
2587	}	2919	}
2588		2920
2589	coroapi.ver = CORO_API_VERSION;	2921	coroapi.ver = CORO_API_VERSION;
2590	coroapi.rev = CORO_API_REVISION;	2922	coroapi.rev = CORO_API_REVISION;
2591		2923
…		…
2610	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2942	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
2611	}	2943	}
2612		2944
2613	SV *	2945	SV *
2614	new (char *klass, ...)	2946	new (char *klass, ...)
		2947	ALIAS:
		2948	Coro::new = 1
2615	CODE:	2949	CODE:
2616	{	2950	{
2617	struct coro *coro;	2951	struct coro *coro;
2618	MAGIC *mg;	2952	MAGIC *mg;
2619	HV *hv;	2953	HV *hv;
2620	CV *cb;	2954	CV *cb;
2621	int i;	2955	int i;
2622		2956
2623	if (items > 1)	2957	if (items > 1)
2624	{	2958	{
2625	cb = coro_sv_2cv (ST (1));	2959	cb = coro_sv_2cv (aTHX_ ST (1));
2626		2960
		2961	if (!ix)
		2962	{
2627	if (CvISXSUB (cb))	2963	if (CvISXSUB (cb))
2628	croak ("Coro::State doesn't support XS functions as coroutine start, caught");	2964	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2629		2965
2630	if (!CvROOT (cb))	2966	if (!CvROOT (cb))
2631	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");	2967	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		2968	}
2632	}	2969	}
2633		2970
2634	Newz (0, coro, 1, struct coro);	2971	Newz (0, coro, 1, struct coro);
2635	coro->args = newAV ();	2972	coro->args = newAV ();
2636	coro->flags = CF_NEW;	2973	coro->flags = CF_NEW;
…		…
2644	mg->mg_flags |= MGf_DUP;	2981	mg->mg_flags |= MGf_DUP;
2645	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	2982	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2646		2983
2647	if (items > 1)	2984	if (items > 1)
2648	{	2985	{
2649	coro->startcv = SvREFCNT_inc_NN (cb);
2650
2651	av_extend (coro->args, items - 1);	2986	av_extend (coro->args, items - 1 + ix - 1);
		2987
		2988	if (ix)
		2989	{
2652	av_push (coro->args, SvREFCNT_inc (cb));	2990	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		2991	cb = cv_coro_run;
		2992	}
		2993
		2994	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		2995
2653	for (i = 2; i < items; i++)	2996	for (i = 2; i < items; i++)
2654	av_push (coro->args, newSVsv (ST (i)));	2997	av_push (coro->args, newSVsv (ST (i)));
2655	}	2998	}
2656	}	2999	}
2657	OUTPUT:	3000	OUTPUT:
…		…
2673	void	3016	void
2674	_exit (int code)	3017	_exit (int code)
2675	PROTOTYPE: $	3018	PROTOTYPE: $
2676	CODE:	3019	CODE:
2677	_exit (code);	3020	_exit (code);
		3021
		3022	SV *
		3023	clone (Coro::State coro)
		3024	CODE:
		3025	{
		3026	#if CORO_CLONE
		3027	struct coro *ncoro = coro_clone (aTHX_ coro);
		3028	MAGIC *mg;
		3029	/* TODO: too much duplication */
		3030	ncoro->hv = newHV ();
		3031	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
		3032	mg->mg_flags |= MGf_DUP;
		3033	RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
		3034	#else
		3035	croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
		3036	#endif
		3037	}
		3038	OUTPUT:
		3039	RETVAL
2678		3040
2679	int	3041	int
2680	cctx_stacksize (int new_stacksize = 0)	3042	cctx_stacksize (int new_stacksize = 0)
2681	PROTOTYPE: ;$	3043	PROTOTYPE: ;$
2682	CODE:	3044	CODE:
…		…
2732	eval = 1	3094	eval = 1
2733	CODE:	3095	CODE:
2734	{	3096	{
2735	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3097	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2736	{	3098	{
2737	struct coro temp;	3099	struct coro *current = SvSTATE_current;
2738		3100
2739	if (!(coro->flags & CF_RUNNING))	3101	if (current != coro)
2740	{	3102	{
2741	PUTBACK;	3103	PUTBACK;
2742	save_perl (aTHX_ &temp);	3104	save_perl (aTHX_ current);
2743	load_perl (aTHX_ coro);	3105	load_perl (aTHX_ coro);
		3106	SPAGAIN;
2744	}	3107	}
2745		3108
2746	{
2747	dSP;
2748	ENTER;
2749	SAVETMPS;
2750	PUTBACK;
2751	PUSHSTACK;	3109	PUSHSTACK;
		3110
2752	PUSHMARK (SP);	3111	PUSHMARK (SP);
		3112	PUTBACK;
2753		3113
2754	if (ix)	3114	if (ix)
2755	eval_sv (coderef, 0);	3115	eval_sv (coderef, 0);
2756	else	3116	else
2757	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3117	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2758		3118
2759	POPSTACK;	3119	POPSTACK;
2760	SPAGAIN;	3120	SPAGAIN;
2761	FREETMPS;
2762	LEAVE;
2763	PUTBACK;
2764	}
2765		3121
2766	if (!(coro->flags & CF_RUNNING))	3122	if (current != coro)
2767	{	3123	{
		3124	PUTBACK;
2768	save_perl (aTHX_ coro);	3125	save_perl (aTHX_ coro);
2769	load_perl (aTHX_ &temp);	3126	load_perl (aTHX_ current);
2770	SPAGAIN;	3127	SPAGAIN;
2771	}	3128	}
2772	}	3129	}
2773	}	3130	}
2774		3131
…		…
2778	ALIAS:	3135	ALIAS:
2779	is_ready = CF_READY	3136	is_ready = CF_READY
2780	is_running = CF_RUNNING	3137	is_running = CF_RUNNING
2781	is_new = CF_NEW	3138	is_new = CF_NEW
2782	is_destroyed = CF_DESTROYED	3139	is_destroyed = CF_DESTROYED
		3140	is_suspended = CF_SUSPENDED
2783	CODE:	3141	CODE:
2784	RETVAL = boolSV (coro->flags & ix);	3142	RETVAL = boolSV (coro->flags & ix);
2785	OUTPUT:	3143	OUTPUT:
2786	RETVAL	3144	RETVAL
2787		3145
…		…
2803		3161
2804	SV *	3162	SV *
2805	has_cctx (Coro::State coro)	3163	has_cctx (Coro::State coro)
2806	PROTOTYPE: $	3164	PROTOTYPE: $
2807	CODE:	3165	CODE:
2808	RETVAL = boolSV (!!coro->cctx);	3166	/* maybe manage the running flag differently */
		3167	RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2809	OUTPUT:	3168	OUTPUT:
2810	RETVAL	3169	RETVAL
2811		3170
2812	int	3171	int
2813	is_traced (Coro::State coro)	3172	is_traced (Coro::State coro)
…		…
2833		3192
2834	void	3193	void
2835	force_cctx ()	3194	force_cctx ()
2836	PROTOTYPE:	3195	PROTOTYPE:
2837	CODE:	3196	CODE:
2838	SvSTATE_current->cctx->idle_sp = 0;	3197	cctx_current->idle_sp = 0;
2839		3198
2840	void	3199	void
2841	swap_defsv (Coro::State self)	3200	swap_defsv (Coro::State self)
2842	PROTOTYPE: $	3201	PROTOTYPE: $
2843	ALIAS:	3202	ALIAS:
…		…
2851	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;	3210	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2852		3211
2853	SV *tmp = *src; *src = *dst; *dst = tmp;	3212	SV *tmp = *src; *src = *dst; *dst = tmp;
2854	}	3213	}
2855		3214
		3215	void
		3216	cancel (Coro::State self)
		3217	CODE:
		3218	coro_state_destroy (aTHX_ self);
		3219	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3220
2856		3221
2857	MODULE = Coro::State PACKAGE = Coro	3222	MODULE = Coro::State PACKAGE = Coro
2858		3223
2859	BOOT:	3224	BOOT:
2860	{	3225	{
2861	int i;
2862
2863	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2864	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3226	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2865	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3227	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2866		3228	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
		3229	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2867	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);	3230	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2868	SvREADONLY_on (coro_current);	3231	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		3232	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
		3233	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3234	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
		3235
		3236	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
		3237	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
		3238	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
		3239	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2869		3240
2870	coro_stash = gv_stashpv ("Coro", TRUE);	3241	coro_stash = gv_stashpv ("Coro", TRUE);
2871		3242
2872	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3243	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
2873	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3244	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
2874	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3245	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
2875	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3246	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
2876	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3247	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
2877	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3248	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
2878		3249
2879	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
2880	coro_ready[i] = newAV ();
2881
2882	{	3250	{
2883	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3251	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2884		3252
2885	coroapi.schedule = api_schedule;	3253	coroapi.schedule = api_schedule;
		3254	coroapi.schedule_to = api_schedule_to;
2886	coroapi.cede = api_cede;	3255	coroapi.cede = api_cede;
2887	coroapi.cede_notself = api_cede_notself;	3256	coroapi.cede_notself = api_cede_notself;
2888	coroapi.ready = api_ready;	3257	coroapi.ready = api_ready;
2889	coroapi.is_ready = api_is_ready;	3258	coroapi.is_ready = api_is_ready;
2890	coroapi.nready = coro_nready;	3259	coroapi.nready = coro_nready;
…		…
2895	SvREADONLY_on (sv);	3264	SvREADONLY_on (sv);
2896	}	3265	}
2897	}	3266	}
2898		3267
2899	void	3268	void
		3269	terminate (...)
		3270	CODE:
		3271	CORO_EXECUTE_SLF_XS (slf_init_terminate);
		3272
		3273	void
2900	schedule (...)	3274	schedule (...)
2901	CODE:	3275	CODE:
2902	CORO_EXECUTE_SLF_XS (slf_init_schedule);	3276	CORO_EXECUTE_SLF_XS (slf_init_schedule);
		3277
		3278	void
		3279	schedule_to (...)
		3280	CODE:
		3281	CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
		3282
		3283	void
		3284	cede_to (...)
		3285	CODE:
		3286	CORO_EXECUTE_SLF_XS (slf_init_cede_to);
2903		3287
2904	void	3288	void
2905	cede (...)	3289	cede (...)
2906	CODE:	3290	CODE:
2907	CORO_EXECUTE_SLF_XS (slf_init_cede);	3291	CORO_EXECUTE_SLF_XS (slf_init_cede);
…		…
2962	CODE:	3346	CODE:
2963	RETVAL = coro_nready;	3347	RETVAL = coro_nready;
2964	OUTPUT:	3348	OUTPUT:
2965	RETVAL	3349	RETVAL
2966		3350
2967	# for async_pool speedup
2968	void	3351	void
2969	_pool_1 (SV *cb)	3352	suspend (Coro::State self)
		3353	PROTOTYPE: $
2970	CODE:	3354	CODE:
2971	{	3355	self->flags |= CF_SUSPENDED;
2972	HV *hv = (HV *)SvRV (coro_current);
2973	struct coro *coro = SvSTATE_hv ((SV *)hv);
2974	AV *defav = GvAV (PL_defgv);
2975	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2976	AV *invoke_av;
2977	int i, len;
2978		3356
2979	if (!invoke)	3357	void
		3358	resume (Coro::State self)
		3359	PROTOTYPE: $
		3360	CODE:
		3361	self->flags &= ~CF_SUSPENDED;
		3362
		3363	void
		3364	_pool_handler (...)
		3365	CODE:
		3366	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
		3367
		3368	void
		3369	async_pool (SV *cv, ...)
		3370	PROTOTYPE: &@
		3371	PPCODE:
		3372	{
		3373	HV *hv = (HV *)av_pop (av_async_pool);
		3374	AV *av = newAV ();
		3375	SV *cb = ST (0);
		3376	int i;
		3377
		3378	av_extend (av, items - 2);
		3379	for (i = 1; i < items; ++i)
		3380	av_push (av, SvREFCNT_inc_NN (ST (i)));
		3381
		3382	if ((SV *)hv == &PL_sv_undef)
2980	{	3383	{
2981	SV *old = PL_diehook;	3384	PUSHMARK (SP);
2982	PL_diehook = 0;	3385	EXTEND (SP, 2);
2983	SvREFCNT_dec (old);	3386	PUSHs (sv_Coro);
2984	croak ("\3async_pool terminate\2\n");	3387	PUSHs ((SV *)cv_pool_handler);
		3388	PUTBACK;
		3389	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
		3390	SPAGAIN;
		3391
		3392	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
2985	}	3393	}
2986		3394
2987	SvREFCNT_dec (coro->saved_deffh);
2988	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2989
2990	hv_store (hv, "desc", sizeof ("desc") - 1,
2991	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2992
2993	invoke_av = (AV *)SvRV (invoke);
2994	len = av_len (invoke_av);
2995
2996	sv_setsv (cb, AvARRAY (invoke_av)[0]);
2997
2998	if (len > 0)
2999	{	3395	{
3000	av_fill (defav, len - 1);	3396	struct coro *coro = SvSTATE_hv (hv);
3001	for (i = 0; i < len; ++i)	3397
3002	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));	3398	assert (!coro->invoke_cb);
		3399	assert (!coro->invoke_av);
		3400	coro->invoke_cb = SvREFCNT_inc (cb);
		3401	coro->invoke_av = av;
3003	}	3402	}
3004	}
3005		3403
3006	void	3404	api_ready (aTHX_ (SV *)hv);
3007	_pool_2 (SV *cb)
3008	CODE:
3009	{
3010	HV *hv = (HV *)SvRV (coro_current);
3011	struct coro *coro = SvSTATE_hv ((SV *)hv);
3012		3405
3013	sv_setsv (cb, &PL_sv_undef);	3406	if (GIMME_V != G_VOID)
3014		3407	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3015	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;	3408	else
3016	coro->saved_deffh = 0;
3017
3018	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
3019	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
3020	{
3021	SV *old = PL_diehook;
3022	PL_diehook = 0;
3023	SvREFCNT_dec (old);	3409	SvREFCNT_dec (hv);
3024	croak ("\3async_pool terminate\2\n");
3025	}
3026
3027	av_clear (GvAV (PL_defgv));
3028	hv_store (hv, "desc", sizeof ("desc") - 1,
3029	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
3030
3031	coro->prio = 0;
3032
3033	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
3034	api_trace (aTHX_ coro_current, 0);
3035
3036	av_push (av_async_pool, newSVsv (coro_current));
3037	}	3410	}
3038		3411
3039	SV *	3412	SV *
3040	rouse_cb ()	3413	rouse_cb ()
3041	PROTOTYPE:	3414	PROTOTYPE:
…		…
3047	void	3420	void
3048	rouse_wait (...)	3421	rouse_wait (...)
3049	PROTOTYPE: ;$	3422	PROTOTYPE: ;$
3050	PPCODE:	3423	PPCODE:
3051	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3424	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
		3425
		3426	void
		3427	on_enter (SV *block)
		3428	ALIAS:
		3429	on_leave = 1
		3430	PROTOTYPE: &
		3431	CODE:
		3432	{
		3433	struct coro *coro = SvSTATE_current;
		3434	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3435
		3436	block = (SV *)coro_sv_2cv (aTHX_ block);
		3437
		3438	if (!*avp)
		3439	*avp = newAV ();
		3440
		3441	av_push (*avp, SvREFCNT_inc (block));
		3442
		3443	if (!ix)
		3444	on_enterleave_call (aTHX_ block);
		3445
		3446	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3447	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3448	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3449	}
3052		3450
3053		3451
3054	MODULE = Coro::State PACKAGE = PerlIO::cede	3452	MODULE = Coro::State PACKAGE = PerlIO::cede
3055		3453
3056	BOOT:	3454	BOOT:
…		…
3067	GvSTASH (CvGV (cv))	3465	GvSTASH (CvGV (cv))
3068	);	3466	);
3069	OUTPUT:	3467	OUTPUT:
3070	RETVAL	3468	RETVAL
3071		3469
3072	# helper for Coro::Channel	3470	# helper for Coro::Channel and others
3073	SV *	3471	SV *
3074	_alloc (int count)	3472	_alloc (int count)
3075	CODE:	3473	CODE:
3076	RETVAL = coro_waitarray_new (aTHX_ count);	3474	RETVAL = coro_waitarray_new (aTHX_ count);
3077	OUTPUT:	3475	OUTPUT:
…		…
3135	for (i = 1; i <= wcount; ++i)	3533	for (i = 1; i <= wcount; ++i)
3136	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3534	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3137	}	3535	}
3138	}	3536	}
3139		3537
		3538	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3539
		3540	void
		3541	_may_delete (SV *sem, int count, int extra_refs)
		3542	PPCODE:
		3543	{
		3544	AV *av = (AV *)SvRV (sem);
		3545
		3546	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3547	&& AvFILLp (av) == 0 /* no waiters, just count */
		3548	&& SvIV (AvARRAY (av)[0]) == count)
		3549	XSRETURN_YES;
		3550
		3551	XSRETURN_NO;
		3552	}
		3553
3140	MODULE = Coro::State PACKAGE = Coro::Signal	3554	MODULE = Coro::State PACKAGE = Coro::Signal
3141		3555
3142	SV *	3556	SV *
3143	new (SV *klass)	3557	new (SV *klass)
3144	CODE:	3558	CODE:
…		…
3215		3629
3216	void	3630	void
3217	_register (char *target, char *proto, SV *req)	3631	_register (char *target, char *proto, SV *req)
3218	CODE:	3632	CODE:
3219	{	3633	{
3220	CV *req_cv = coro_sv_2cv (req);	3634	CV *req_cv = coro_sv_2cv (aTHX_ req);
3221	/* newXSproto doesn't return the CV on 5.8 */	3635	/* newXSproto doesn't return the CV on 5.8 */
3222	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3636	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3223	sv_setpv ((SV *)slf_cv, proto);	3637	sv_setpv ((SV *)slf_cv, proto);
3224	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3638	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3225	}	3639	}

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