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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.310 by root, Wed Nov 19 16:01:32 2008 UTC vs.
Revision 1.345 by root, Wed Dec 17 04:57:07 2008 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
…		…
263	SV *except; /* exception to be thrown */	283	SV *except; /* exception to be thrown */
264	SV *rouse_cb;	284	SV *rouse_cb;
265		285
266	/* async_pool */	286	/* async_pool */
267	SV *saved_deffh;	287	SV *saved_deffh;
		288	SV *invoke_cb;
		289	AV *invoke_av;
		290
		291	/* on_enter/on_leave */
		292	AV *on_enter;
		293	AV *on_leave;
268		294
269	/* linked list */	295	/* linked list */
270	struct coro *next, *prev;	296	struct coro *next, *prev;
271	};	297	};
272		298
…		…
289		315
290	/* for Coro.pm */	316	/* for Coro.pm */
291	static SV *coro_current;	317	static SV *coro_current;
292	static SV *coro_readyhook;	318	static SV *coro_readyhook;
293	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	319	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
294	static CV *cv_coro_run;	320	static CV *cv_coro_run, *cv_coro_terminate;
295	static struct coro *coro_first;	321	static struct coro *coro_first;
296	#define coro_nready coroapi.nready	322	#define coro_nready coroapi.nready
297		323
298	/** lowlevel stuff **********************************************************/	324	/** lowlevel stuff **********************************************************/
299		325
…		…
327	return get_hv (name, create);	353	return get_hv (name, create);
328	}	354	}
329		355
330	/* may croak */	356	/* may croak */
331	INLINE CV *	357	INLINE CV *
332	coro_sv_2cv (SV *sv)	358	coro_sv_2cv (pTHX_ SV *sv)
333	{	359	{
334	HV *st;	360	HV *st;
335	GV *gvp;	361	GV *gvp;
336	return sv_2cv (sv, &st, &gvp, 0);	362	CV *cv = sv_2cv (sv, &st, &gvp, 0);
		363
		364	if (!cv)
		365	croak ("code reference expected");
		366
		367	return cv;
337	}	368	}
		369
		370	/*****************************************************************************/
		371	/* magic glue */
		372
		373	#define CORO_MAGIC_type_cv 26
		374	#define CORO_MAGIC_type_state PERL_MAGIC_ext
		375
		376	#define CORO_MAGIC_NN(sv, type) \
		377	(expect_true (SvMAGIC (sv)->mg_type == type) \
		378	? SvMAGIC (sv) \
		379	: mg_find (sv, type))
		380
		381	#define CORO_MAGIC(sv, type) \
		382	(expect_true (SvMAGIC (sv)) \
		383	? CORO_MAGIC_NN (sv, type) \
		384	: 0)
		385
		386	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		387	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
		388
		389	INLINE struct coro *
		390	SvSTATE_ (pTHX_ SV *coro)
		391	{
		392	HV *stash;
		393	MAGIC *mg;
		394
		395	if (SvROK (coro))
		396	coro = SvRV (coro);
		397
		398	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		399	croak ("Coro::State object required");
		400
		401	stash = SvSTASH (coro);
		402	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		403	{
		404	/* very slow, but rare, check */
		405	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		406	croak ("Coro::State object required");
		407	}
		408
		409	mg = CORO_MAGIC_state (coro);
		410	return (struct coro *)mg->mg_ptr;
		411	}
		412
		413	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		414
		415	/* faster than SvSTATE, but expects a coroutine hv */
		416	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
		417	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
		418
		419	/*****************************************************************************/
		420	/* padlist management and caching */
338		421
339	static AV *	422	static AV *
340	coro_clone_padlist (pTHX_ CV *cv)	423	coro_derive_padlist (pTHX_ CV *cv)
341	{	424	{
342	AV *padlist = CvPADLIST (cv);	425	AV *padlist = CvPADLIST (cv);
343	AV *newpadlist, *newpad;	426	AV *newpadlist, *newpad;
344		427
345	newpadlist = newAV ();	428	newpadlist = newAV ();
…		…
350	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	433	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
351	#endif	434	#endif
352	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	435	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
353	--AvFILLp (padlist);	436	--AvFILLp (padlist);
354		437
355	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));	438	av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
356	av_store (newpadlist, 1, (SV *)newpad);	439	av_store (newpadlist, 1, (SV *)newpad);
357		440
358	return newpadlist;	441	return newpadlist;
359	}	442	}
360		443
361	static void	444	static void
362	free_padlist (pTHX_ AV *padlist)	445	free_padlist (pTHX_ AV *padlist)
363	{	446	{
364	/* may be during global destruction */	447	/* may be during global destruction */
365	if (SvREFCNT (padlist))	448	if (!IN_DESTRUCT)
366	{	449	{
367	I32 i = AvFILLp (padlist);	450	I32 i = AvFILLp (padlist);
368	while (i >= 0)	451
		452	while (i > 0) /* special-case index 0 */
369	{	453	{
370	SV **svp = av_fetch (padlist, i--, FALSE);	454	/* we try to be extra-careful here */
371	if (svp)	455	AV *av = (AV *)AvARRAY (padlist)[i--];
372	{	456	I32 j = AvFILLp (av);
373	SV *sv;	457
374	while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))	458	while (j >= 0)
		459	SvREFCNT_dec (AvARRAY (av)[j--]);
		460
		461	AvFILLp (av) = -1;
375	SvREFCNT_dec (sv);	462	SvREFCNT_dec (av);
376
377	SvREFCNT_dec (*svp);
378	}
379	}	463	}
380		464
		465	SvREFCNT_dec (AvARRAY (padlist)[0]);
		466
		467	AvFILLp (padlist) = -1;
381	SvREFCNT_dec ((SV*)padlist);	468	SvREFCNT_dec ((SV*)padlist);
382	}	469	}
383	}	470	}
384		471
385	static int	472	static int
…		…
394		481
395	SvREFCNT_dec (av); /* sv_magicext increased the refcount */	482	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
396		483
397	return 0;	484	return 0;
398	}	485	}
399
400	#define CORO_MAGIC_type_cv 26
401	#define CORO_MAGIC_type_state PERL_MAGIC_ext
402		486
403	static MGVTBL coro_cv_vtbl = {	487	static MGVTBL coro_cv_vtbl = {
404	0, 0, 0, 0,	488	0, 0, 0, 0,
405	coro_cv_free	489	coro_cv_free
406	};	490	};
407
408	#define CORO_MAGIC_NN(sv, type) \
409	(expect_true (SvMAGIC (sv)->mg_type == type) \
410	? SvMAGIC (sv) \
411	: mg_find (sv, type))
412
413	#define CORO_MAGIC(sv, type) \
414	(expect_true (SvMAGIC (sv)) \
415	? CORO_MAGIC_NN (sv, type) \
416	: 0)
417
418	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
419	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
420
421	INLINE struct coro *
422	SvSTATE_ (pTHX_ SV *coro)
423	{
424	HV *stash;
425	MAGIC *mg;
426
427	if (SvROK (coro))
428	coro = SvRV (coro);
429
430	if (expect_false (SvTYPE (coro) != SVt_PVHV))
431	croak ("Coro::State object required");
432
433	stash = SvSTASH (coro);
434	if (expect_false (stash != coro_stash && stash != coro_state_stash))
435	{
436	/* very slow, but rare, check */
437	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
438	croak ("Coro::State object required");
439	}
440
441	mg = CORO_MAGIC_state (coro);
442	return (struct coro *)mg->mg_ptr;
443	}
444
445	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
446
447	/* faster than SvSTATE, but expects a coroutine hv */
448	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
449	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
450		491
451	/* the next two functions merely cache the padlists */	492	/* the next two functions merely cache the padlists */
452	static void	493	static void
453	get_padlist (pTHX_ CV *cv)	494	get_padlist (pTHX_ CV *cv)
454	{	495	{
…		…
465	CV *cp = Perl_cv_clone (aTHX_ cv);	506	CV *cp = Perl_cv_clone (aTHX_ cv);
466	CvPADLIST (cv) = CvPADLIST (cp);	507	CvPADLIST (cv) = CvPADLIST (cp);
467	CvPADLIST (cp) = 0;	508	CvPADLIST (cp) = 0;
468	SvREFCNT_dec (cp);	509	SvREFCNT_dec (cp);
469	#else	510	#else
470	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	511	CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
471	#endif	512	#endif
472	}	513	}
473	}	514	}
474		515
475	static void	516	static void
…		…
482	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);	523	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
483		524
484	av = (AV *)mg->mg_obj;	525	av = (AV *)mg->mg_obj;
485		526
486	if (expect_false (AvFILLp (av) >= AvMAX (av)))	527	if (expect_false (AvFILLp (av) >= AvMAX (av)))
487	av_extend (av, AvMAX (av) + 1);	528	av_extend (av, AvFILLp (av) + 1);
488		529
489	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	530	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
490	}	531	}
491		532
492	/** load & save, init *******************************************************/	533	/** load & save, init *******************************************************/
		534
		535	static void
		536	on_enterleave_call (pTHX_ SV *cb);
493		537
494	static void	538	static void
495	load_perl (pTHX_ Coro__State c)	539	load_perl (pTHX_ Coro__State c)
496	{	540	{
497	perl_slots *slot = c->slot;	541	perl_slots *slot = c->slot;
498	c->slot = 0;	542	c->slot = 0;
499		543
500	PL_mainstack = c->mainstack;	544	PL_mainstack = c->mainstack;
501		545
502	GvSV (PL_defgv) = slot->defsv;	546	GvSV (PL_defgv) = slot->defsv;
503	GvAV (PL_defgv) = slot->defav;	547	GvAV (PL_defgv) = slot->defav;
504	GvSV (PL_errgv) = slot->errsv;	548	GvSV (PL_errgv) = slot->errsv;
505	GvSV (irsgv) = slot->irsgv;	549	GvSV (irsgv) = slot->irsgv;
		550	GvHV (PL_hintgv) = slot->hinthv;
506		551
507	#define VAR(name,type) PL_ ## name = slot->name;	552	#define VAR(name,type) PL_ ## name = slot->name;
508	# include "state.h"	553	# include "state.h"
509	#undef VAR	554	#undef VAR
510		555
…		…
524	PUTBACK;	569	PUTBACK;
525	}	570	}
526		571
527	slf_frame = c->slf_frame;	572	slf_frame = c->slf_frame;
528	CORO_THROW = c->except;	573	CORO_THROW = c->except;
		574
		575	if (expect_false (c->on_enter))
		576	{
		577	int i;
		578
		579	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
		580	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
		581	}
529	}	582	}
530		583
531	static void	584	static void
532	save_perl (pTHX_ Coro__State c)	585	save_perl (pTHX_ Coro__State c)
533	{	586	{
		587	if (expect_false (c->on_leave))
		588	{
		589	int i;
		590
		591	for (i = AvFILLp (c->on_leave); i >= 0; --i)
		592	on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
		593	}
		594
534	c->except = CORO_THROW;	595	c->except = CORO_THROW;
535	c->slf_frame = slf_frame;	596	c->slf_frame = slf_frame;
536		597
537	{	598	{
538	dSP;	599	dSP;
…		…
596	c->mainstack = PL_mainstack;	657	c->mainstack = PL_mainstack;
597		658
598	{	659	{
599	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	660	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
600		661
601	slot->defav = GvAV (PL_defgv);	662	slot->defav = GvAV (PL_defgv);
602	slot->defsv = DEFSV;	663	slot->defsv = DEFSV;
603	slot->errsv = ERRSV;	664	slot->errsv = ERRSV;
604	slot->irsgv = GvSV (irsgv);	665	slot->irsgv = GvSV (irsgv);
		666	slot->hinthv = GvHV (PL_hintgv);
605		667
606	#define VAR(name,type) slot->name = PL_ ## name;	668	#define VAR(name,type) slot->name = PL_ ## name;
607	# include "state.h"	669	# include "state.h"
608	#undef VAR	670	#undef VAR
609	}	671	}
…		…
687	#if !PERL_VERSION_ATLEAST (5,10,0)	749	#if !PERL_VERSION_ATLEAST (5,10,0)
688	Safefree (PL_retstack);	750	Safefree (PL_retstack);
689	#endif	751	#endif
690	}	752	}
691		753
		754	#define CORO_RSS \
		755	rss += sizeof (SYM (curstackinfo)); \
		756	rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
		757	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
		758	rss += SYM (tmps_max) * sizeof (SV *); \
		759	rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
		760	rss += SYM (scopestack_max) * sizeof (I32); \
		761	rss += SYM (savestack_max) * sizeof (ANY);
		762
692	static size_t	763	static size_t
693	coro_rss (pTHX_ struct coro *coro)	764	coro_rss (pTHX_ struct coro *coro)
694	{	765	{
695	size_t rss = sizeof (*coro);	766	size_t rss = sizeof (*coro);
696		767
697	if (coro->mainstack)	768	if (coro->mainstack)
698	{	769	{
699	perl_slots tmp_slot;
700	perl_slots *slot;
701
702	if (coro->flags & CF_RUNNING)	770	if (coro->flags & CF_RUNNING)
703	{	771	{
704	slot = &tmp_slot;	772	#define SYM(sym) PL_ ## sym
705		773	CORO_RSS;
706	#define VAR(name,type) slot->name = PL_ ## name;
707	# include "state.h"
708	#undef VAR	774	#undef SYM
709	}	775	}
710	else	776	else
711	slot = coro->slot;
712
713	if (slot)
714	{	777	{
715	rss += sizeof (slot->curstackinfo);	778	#define SYM(sym) coro->slot->sym
716	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	779	CORO_RSS;
717	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	780	#undef SYM
718	rss += slot->tmps_max * sizeof (SV *);
719	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
720	rss += slot->scopestack_max * sizeof (I32);
721	rss += slot->savestack_max * sizeof (ANY);
722
723	#if !PERL_VERSION_ATLEAST (5,10,0)
724	rss += slot->retstack_max * sizeof (OP *);
725	#endif
726	}	781	}
727	}	782	}
728		783
729	return rss;	784	return rss;
730	}	785	}
…		…
743	#endif	798	#endif
744		799
745	/*	800	/*
746	* This overrides the default magic get method of %SIG elements.	801	* This overrides the default magic get method of %SIG elements.
747	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook	802	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
748	* and instead of tryign to save and restore the hash elements, we just provide	803	* and instead of trying to save and restore the hash elements, we just provide
749	* readback here.	804	* readback here.
750	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
751	* not expecting this to actually change the hook. This is a potential problem
752	* when a schedule happens then, but we ignore this.
753	*/	805	*/
754	static int	806	static int
755	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	807	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
756	{	808	{
757	const char *s = MgPV_nolen_const (mg);	809	const char *s = MgPV_nolen_const (mg);
…		…
810	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	862	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
811		863
812	if (svp)	864	if (svp)
813	{	865	{
814	SV *old = *svp;	866	SV *old = *svp;
815	*svp = newSVsv (sv);	867	*svp = SvOK (sv) ? newSVsv (sv) : 0;
816	SvREFCNT_dec (old);	868	SvREFCNT_dec (old);
817	return 0;	869	return 0;
818	}	870	}
819	}	871	}
820		872
…		…
830		882
831	static int	883	static int
832	slf_check_nop (pTHX_ struct CoroSLF *frame)	884	slf_check_nop (pTHX_ struct CoroSLF *frame)
833	{	885	{
834	return 0;	886	return 0;
		887	}
		888
		889	static int
		890	slf_check_repeat (pTHX_ struct CoroSLF *frame)
		891	{
		892	return 1;
835	}	893	}
836		894
837	static UNOP coro_setup_op;	895	static UNOP coro_setup_op;
838		896
839	static void NOINLINE /* noinline to keep it out of the transfer fast path */	897	static void NOINLINE /* noinline to keep it out of the transfer fast path */
…		…
846		904
847	PL_runops = RUNOPS_DEFAULT;	905	PL_runops = RUNOPS_DEFAULT;
848	PL_curcop = &PL_compiling;	906	PL_curcop = &PL_compiling;
849	PL_in_eval = EVAL_NULL;	907	PL_in_eval = EVAL_NULL;
850	PL_comppad = 0;	908	PL_comppad = 0;
		909	PL_comppad_name = 0;
		910	PL_comppad_name_fill = 0;
		911	PL_comppad_name_floor = 0;
851	PL_curpm = 0;	912	PL_curpm = 0;
852	PL_curpad = 0;	913	PL_curpad = 0;
853	PL_localizing = 0;	914	PL_localizing = 0;
854	PL_dirty = 0;	915	PL_dirty = 0;
855	PL_restartop = 0;	916	PL_restartop = 0;
856	#if PERL_VERSION_ATLEAST (5,10,0)	917	#if PERL_VERSION_ATLEAST (5,10,0)
857	PL_parser = 0;	918	PL_parser = 0;
858	#endif	919	#endif
		920	PL_hints = 0;
859		921
860	/* recreate the die/warn hooks */	922	/* recreate the die/warn hooks */
861	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );	923	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
862	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);	924	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
863		925
864	GvSV (PL_defgv) = newSV (0);	926	GvSV (PL_defgv) = newSV (0);
865	GvAV (PL_defgv) = coro->args; coro->args = 0;	927	GvAV (PL_defgv) = coro->args; coro->args = 0;
866	GvSV (PL_errgv) = newSV (0);	928	GvSV (PL_errgv) = newSV (0);
867	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	929	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		930	GvHV (PL_hintgv) = 0;
868	PL_rs = newSVsv (GvSV (irsgv));	931	PL_rs = newSVsv (GvSV (irsgv));
869	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	932	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
870		933
871	{	934	{
872	dSP;	935	dSP;
…		…
890	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	953	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
891	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */	954	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
892		955
893	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	956	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
894	coro_setup_op.op_next = PL_op;	957	coro_setup_op.op_next = PL_op;
895	coro_setup_op.op_type = OP_CUSTOM;	958	coro_setup_op.op_type = OP_ENTERSUB;
896	coro_setup_op.op_ppaddr = pp_slf;	959	coro_setup_op.op_ppaddr = pp_slf;
897	/* no flags etc. required, as an init function won't be called */	960	/* no flags etc. required, as an init function won't be called */
898		961
899	PL_op = (OP *)&coro_setup_op;	962	PL_op = (OP *)&coro_setup_op;
900		963
901	/* copy throw, in case it was set before coro_setup */	964	/* copy throw, in case it was set before coro_setup */
902	CORO_THROW = coro->except;	965	CORO_THROW = coro->except;
903	}	966	}
904		967
905	static void	968	static void
906	coro_destruct (pTHX_ struct coro *coro)	969	coro_unwind_stacks (pTHX)
907	{	970	{
908	if (!IN_DESTRUCT)	971	if (!IN_DESTRUCT)
909	{	972	{
910	/* restore all saved variables and stuff */	973	/* restore all saved variables and stuff */
911	LEAVE_SCOPE (0);	974	LEAVE_SCOPE (0);
…		…
919	POPSTACK_TO (PL_mainstack);	982	POPSTACK_TO (PL_mainstack);
920		983
921	/* unwind main stack */	984	/* unwind main stack */
922	dounwind (-1);	985	dounwind (-1);
923	}	986	}
		987	}
		988
		989	static void
		990	coro_destruct_perl (pTHX_ struct coro *coro)
		991	{
		992	coro_unwind_stacks (aTHX);
924		993
925	SvREFCNT_dec (GvSV (PL_defgv));	994	SvREFCNT_dec (GvSV (PL_defgv));
926	SvREFCNT_dec (GvAV (PL_defgv));	995	SvREFCNT_dec (GvAV (PL_defgv));
927	SvREFCNT_dec (GvSV (PL_errgv));	996	SvREFCNT_dec (GvSV (PL_errgv));
928	SvREFCNT_dec (PL_defoutgv);	997	SvREFCNT_dec (PL_defoutgv);
929	SvREFCNT_dec (PL_rs);	998	SvREFCNT_dec (PL_rs);
930	SvREFCNT_dec (GvSV (irsgv));	999	SvREFCNT_dec (GvSV (irsgv));
		1000	SvREFCNT_dec (GvHV (PL_hintgv));
931		1001
932	SvREFCNT_dec (PL_diehook);	1002	SvREFCNT_dec (PL_diehook);
933	SvREFCNT_dec (PL_warnhook);	1003	SvREFCNT_dec (PL_warnhook);
934		1004
935	SvREFCNT_dec (coro->saved_deffh);	1005	SvREFCNT_dec (coro->saved_deffh);
936	SvREFCNT_dec (coro->rouse_cb);	1006	SvREFCNT_dec (coro->rouse_cb);
		1007	SvREFCNT_dec (coro->invoke_cb);
		1008	SvREFCNT_dec (coro->invoke_av);
937		1009
938	coro_destruct_stacks (aTHX);	1010	coro_destruct_stacks (aTHX);
939	}	1011	}
940		1012
941	INLINE void	1013	INLINE void
…		…
951	static int	1023	static int
952	runops_trace (pTHX)	1024	runops_trace (pTHX)
953	{	1025	{
954	COP *oldcop = 0;	1026	COP *oldcop = 0;
955	int oldcxix = -2;	1027	int oldcxix = -2;
956	struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
957	coro_cctx *cctx = coro->cctx;
958		1028
959	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))	1029	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
960	{	1030	{
961	PERL_ASYNC_CHECK ();	1031	PERL_ASYNC_CHECK ();
962		1032
963	if (cctx->flags & CC_TRACE_ALL)	1033	if (cctx_current->flags & CC_TRACE_ALL)
964	{	1034	{
965	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)	1035	if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
966	{	1036	{
967	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1037	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
968	SV **bot, **top;	1038	SV **bot, **top;
969	AV *av = newAV (); /* return values */	1039	AV *av = newAV (); /* return values */
970	SV **cb;	1040	SV **cb;
…		…
1007		1077
1008	if (PL_curcop != &PL_compiling)	1078	if (PL_curcop != &PL_compiling)
1009	{	1079	{
1010	SV **cb;	1080	SV **cb;
1011		1081
1012	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)	1082	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1013	{	1083	{
1014	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1084	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1015		1085
1016	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1086	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1017	{	1087	{
1018	runops_proc_t old_runops = PL_runops;
1019	dSP;	1088	dSP;
1020	GV *gv = CvGV (cx->blk_sub.cv);	1089	GV *gv = CvGV (cx->blk_sub.cv);
1021	SV *fullname = sv_2mortal (newSV (0));	1090	SV *fullname = sv_2mortal (newSV (0));
1022		1091
1023	if (isGV (gv))	1092	if (isGV (gv))
…		…
1041	}	1110	}
1042		1111
1043	oldcxix = cxstack_ix;	1112	oldcxix = cxstack_ix;
1044	}	1113	}
1045		1114
1046	if (cctx->flags & CC_TRACE_LINE)	1115	if (cctx_current->flags & CC_TRACE_LINE)
1047	{	1116	{
1048	dSP;	1117	dSP;
1049		1118
1050	PL_runops = RUNOPS_DEFAULT;	1119	PL_runops = RUNOPS_DEFAULT;
1051	ENTER;	1120	ENTER;
…		…
1070		1139
1071	TAINT_NOT;	1140	TAINT_NOT;
1072	return 0;	1141	return 0;
1073	}	1142	}
1074		1143
1075	static struct coro_cctx *cctx_ssl_cctx;
1076	static struct CoroSLF cctx_ssl_frame;	1144	static struct CoroSLF cctx_ssl_frame;
1077		1145
1078	static void	1146	static void
1079	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)	1147	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1080	{	1148	{
1081	ta->prev = (struct coro *)cctx_ssl_cctx;
1082	ta->next = 0;	1149	ta->prev = 0;
1083	}	1150	}
1084		1151
1085	static int	1152	static int
1086	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)	1153	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1087	{	1154	{
…		…
1090	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */	1157	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1091	}	1158	}
1092		1159
1093	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */	1160	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1094	static void NOINLINE	1161	static void NOINLINE
1095	cctx_prepare (pTHX_ coro_cctx *cctx)	1162	cctx_prepare (pTHX)
1096	{	1163	{
1097	PL_top_env = &PL_start_env;	1164	PL_top_env = &PL_start_env;
1098		1165
1099	if (cctx->flags & CC_TRACE)	1166	if (cctx_current->flags & CC_TRACE)
1100	PL_runops = runops_trace;	1167	PL_runops = runops_trace;
1101		1168
1102	/* we already must be executing an SLF op, there is no other valid way	1169	/* we already must be executing an SLF op, there is no other valid way
1103	* that can lead to creation of a new cctx */	1170	* that can lead to creation of a new cctx */
1104	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",	1171	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1105	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));	1172	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1106		1173
1107	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */	1174	/* 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;	1175	cctx_ssl_frame = slf_frame;
1110		1176
1111	slf_frame.prepare = slf_prepare_set_stacklevel;	1177	slf_frame.prepare = slf_prepare_set_stacklevel;
1112	slf_frame.check = slf_check_set_stacklevel;	1178	slf_frame.check = slf_check_set_stacklevel;
1113	}	1179	}
…		…
1136	/* normally we would need to skip the entersub here */	1202	/* normally we would need to skip the entersub here */
1137	/* not doing so will re-execute it, which is exactly what we want */	1203	/* not doing so will re-execute it, which is exactly what we want */
1138	/* PL_nop = PL_nop->op_next */	1204	/* PL_nop = PL_nop->op_next */
1139		1205
1140	/* inject a fake subroutine call to cctx_init */	1206	/* inject a fake subroutine call to cctx_init */
1141	cctx_prepare (aTHX_ (coro_cctx *)arg);	1207	cctx_prepare (aTHX);
1142		1208
1143	/* cctx_run is the alternative tail of transfer() */	1209	/* cctx_run is the alternative tail of transfer() */
1144	transfer_tail (aTHX);	1210	transfer_tail (aTHX);
1145		1211
1146	/* somebody or something will hit me for both perl_run and PL_restartop */	1212	/* somebody or something will hit me for both perl_run and PL_restartop */
…		…
1154	/*	1220	/*
1155	* If perl-run returns we assume exit() was being called or the coro	1221	* If perl-run returns we assume exit() was being called or the coro
1156	* fell off the end, which seems to be the only valid (non-bug)	1222	* fell off the end, which seems to be the only valid (non-bug)
1157	* reason for perl_run to return. We try to exit by jumping to the	1223	* reason for perl_run to return. We try to exit by jumping to the
1158	* bootstrap-time "top" top_env, as we cannot restore the "main"	1224	* bootstrap-time "top" top_env, as we cannot restore the "main"
1159	* coroutine as Coro has no such concept	1225	* coroutine as Coro has no such concept.
		1226	* This actually isn't valid with the pthread backend, but OSes requiring
		1227	* that backend are too broken to do it in a standards-compliant way.
1160	*/	1228	*/
1161	PL_top_env = main_top_env;	1229	PL_top_env = main_top_env;
1162	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1230	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1163	}	1231	}
1164	}	1232	}
…		…
1241	cctx_destroy (coro_cctx *cctx)	1309	cctx_destroy (coro_cctx *cctx)
1242	{	1310	{
1243	if (!cctx)	1311	if (!cctx)
1244	return;	1312	return;
1245		1313
		1314	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
		1315
1246	--cctx_count;	1316	--cctx_count;
1247	coro_destroy (&cctx->cctx);	1317	coro_destroy (&cctx->cctx);
1248		1318
1249	/* coro_transfer creates new, empty cctx's */	1319	/* coro_transfer creates new, empty cctx's */
1250	if (cctx->sptr)	1320	if (cctx->sptr)
…		…
1313	/* TODO: throwing up here is considered harmful */	1383	/* TODO: throwing up here is considered harmful */
1314		1384
1315	if (expect_true (prev != next))	1385	if (expect_true (prev != next))
1316	{	1386	{
1317	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1387	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1318	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,");	1388	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1319		1389
1320	if (expect_false (next->flags & CF_RUNNING))
1321	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1322
1323	if (expect_false (next->flags & CF_DESTROYED))	1390	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1324	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,");	1391	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1325		1392
1326	#if !PERL_VERSION_ATLEAST (5,10,0)	1393	#if !PERL_VERSION_ATLEAST (5,10,0)
1327	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1394	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1328	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");	1395	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1329	#endif	1396	#endif
…		…
1335	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)	1402	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1336	{	1403	{
1337	dSTACKLEVEL;	1404	dSTACKLEVEL;
1338		1405
1339	/* sometimes transfer is only called to set idle_sp */	1406	/* sometimes transfer is only called to set idle_sp */
1340	if (expect_false (!next))	1407	if (expect_false (!prev))
1341	{	1408	{
1342	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1409	cctx_current->idle_sp = STACKLEVEL;
1343	assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */	1410	assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1344	}	1411	}
1345	else if (expect_true (prev != next))	1412	else if (expect_true (prev != next))
1346	{	1413	{
1347	coro_cctx *prev__cctx;	1414	coro_cctx *cctx_prev;
1348		1415
1349	if (expect_false (prev->flags & CF_NEW))	1416	if (expect_false (prev->flags & CF_NEW))
1350	{	1417	{
1351	/* create a new empty/source context */	1418	/* create a new empty/source context */
1352	prev->cctx = cctx_new_empty ();
1353	prev->flags &= ~CF_NEW;	1419	prev->flags &= ~CF_NEW;
1354	prev->flags |= CF_RUNNING;	1420	prev->flags |= CF_RUNNING;
1355	}	1421	}
1356		1422
1357	prev->flags &= ~CF_RUNNING;	1423	prev->flags &= ~CF_RUNNING;
…		…
1368	coro_setup (aTHX_ next);	1434	coro_setup (aTHX_ next);
1369	}	1435	}
1370	else	1436	else
1371	load_perl (aTHX_ next);	1437	load_perl (aTHX_ next);
1372		1438
1373	prev__cctx = prev->cctx;
1374
1375	/* possibly untie and reuse the cctx */	1439	/* possibly untie and reuse the cctx */
1376	if (expect_true (	1440	if (expect_true (
1377	prev__cctx->idle_sp == STACKLEVEL	1441	cctx_current->idle_sp == STACKLEVEL
1378	&& !(prev__cctx->flags & CC_TRACE)	1442	&& !(cctx_current->flags & CC_TRACE)
1379	&& !force_cctx	1443	&& !force_cctx
1380	))	1444	))
1381	{	1445	{
1382	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1446	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1383	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));	1447	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1384		1448
1385	prev->cctx = 0;
1386
1387	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1449	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1388	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1450	/* without this the next cctx_get might destroy the running cctx while still in use */
1389	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1451	if (expect_false (CCTX_EXPIRED (cctx_current)))
1390	if (!next->cctx)	1452	if (expect_true (!next->cctx))
1391	next->cctx = cctx_get (aTHX);	1453	next->cctx = cctx_get (aTHX);
1392		1454
1393	cctx_put (prev__cctx);	1455	cctx_put (cctx_current);
1394	}	1456	}
		1457	else
		1458	prev->cctx = cctx_current;
1395		1459
1396	++next->usecount;	1460	++next->usecount;
1397		1461
1398	if (expect_true (!next->cctx))	1462	cctx_prev = cctx_current;
1399	next->cctx = cctx_get (aTHX);	1463	cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1400		1464
1401	if (expect_false (prev__cctx != next->cctx))	1465	next->cctx = 0;
		1466
		1467	if (expect_false (cctx_prev != cctx_current))
1402	{	1468	{
1403	prev__cctx->top_env = PL_top_env;	1469	cctx_prev->top_env = PL_top_env;
1404	PL_top_env = next->cctx->top_env;	1470	PL_top_env = cctx_current->top_env;
1405	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1471	coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1406	}	1472	}
1407		1473
1408	transfer_tail (aTHX);	1474	transfer_tail (aTHX);
1409	}	1475	}
1410	}	1476	}
…		…
1418	coro_state_destroy (pTHX_ struct coro *coro)	1484	coro_state_destroy (pTHX_ struct coro *coro)
1419	{	1485	{
1420	if (coro->flags & CF_DESTROYED)	1486	if (coro->flags & CF_DESTROYED)
1421	return 0;	1487	return 0;
1422		1488
1423	if (coro->on_destroy)	1489	if (coro->on_destroy && !PL_dirty)
1424	coro->on_destroy (aTHX_ coro);	1490	coro->on_destroy (aTHX_ coro);
1425		1491
1426	coro->flags |= CF_DESTROYED;	1492	coro->flags |= CF_DESTROYED;
1427		1493
1428	if (coro->flags & CF_READY)	1494	if (coro->flags & CF_READY)
…		…
1432	--coro_nready;	1498	--coro_nready;
1433	}	1499	}
1434	else	1500	else
1435	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */	1501	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1436		1502
1437	if (coro->mainstack && coro->mainstack != main_mainstack)	1503	if (coro->mainstack
		1504	&& coro->mainstack != main_mainstack
		1505	&& coro->slot
		1506	&& !PL_dirty)
1438	{	1507	{
1439	struct coro temp;	1508	struct coro *current = SvSTATE_current;
1440		1509
1441	assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));	1510	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1442		1511
1443	save_perl (aTHX_ &temp);	1512	save_perl (aTHX_ current);
1444	load_perl (aTHX_ coro);	1513	load_perl (aTHX_ coro);
1445		1514
1446	coro_destruct (aTHX_ coro);	1515	coro_destruct_perl (aTHX_ coro);
1447		1516
1448	load_perl (aTHX_ &temp);	1517	load_perl (aTHX_ current);
1449		1518
1450	coro->slot = 0;	1519	coro->slot = 0;
1451	}	1520	}
1452		1521
1453	cctx_destroy (coro->cctx);	1522	cctx_destroy (coro->cctx);
…		…
1565	{	1634	{
1566	struct coro *coro;	1635	struct coro *coro;
1567	SV *sv_hook;	1636	SV *sv_hook;
1568	void (*xs_hook)(void);	1637	void (*xs_hook)(void);
1569		1638
1570	if (SvROK (coro_sv))
1571	coro_sv = SvRV (coro_sv);
1572
1573	coro = SvSTATE (coro_sv);	1639	coro = SvSTATE (coro_sv);
1574		1640
1575	if (coro->flags & CF_READY)	1641	if (coro->flags & CF_READY)
1576	return 0;	1642	return 0;
1577		1643
…		…
1608	api_is_ready (pTHX_ SV *coro_sv)	1674	api_is_ready (pTHX_ SV *coro_sv)
1609	{	1675	{
1610	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1676	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1611	}	1677	}
1612		1678
		1679	/* expects to own a reference to next->hv */
1613	INLINE void	1680	INLINE void
1614	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1681	prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1615	{	1682	{
1616	SV *prev_sv, *next_sv;
1617
1618	for (;;)
1619	{
1620	next_sv = coro_deq (aTHX);
1621
1622	/* nothing to schedule: call the idle handler */
1623	if (expect_false (!next_sv))
1624	{
1625	dSP;
1626
1627	ENTER;
1628	SAVETMPS;
1629
1630	PUSHMARK (SP);
1631	PUTBACK;
1632	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1633
1634	FREETMPS;
1635	LEAVE;
1636	continue;
1637	}
1638
1639	ta->next = SvSTATE_hv (next_sv);
1640
1641	/* cannot transfer to destroyed coros, skip and look for next */
1642	if (expect_false (ta->next->flags & CF_DESTROYED))
1643	{
1644	SvREFCNT_dec (next_sv);
1645	/* coro_nready has already been taken care of by destroy */
1646	continue;
1647	}
1648
1649	--coro_nready;
1650	break;
1651	}
1652
1653	/* free this only after the transfer */
1654	prev_sv = SvRV (coro_current);	1683	SV *prev_sv = SvRV (coro_current);
		1684
1655	ta->prev = SvSTATE_hv (prev_sv);	1685	ta->prev = SvSTATE_hv (prev_sv);
		1686	ta->next = next;
		1687
1656	TRANSFER_CHECK (*ta);	1688	TRANSFER_CHECK (*ta);
1657	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));	1689
1658	ta->next->flags &= ~CF_READY;
1659	SvRV_set (coro_current, next_sv);	1690	SvRV_set (coro_current, (SV *)next->hv);
1660		1691
1661	free_coro_mortal (aTHX);	1692	free_coro_mortal (aTHX);
1662	coro_mortal = prev_sv;	1693	coro_mortal = prev_sv;
1663	}	1694	}
1664		1695
		1696	static void
		1697	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
		1698	{
		1699	for (;;)
		1700	{
		1701	SV *next_sv = coro_deq (aTHX);
		1702
		1703	if (expect_true (next_sv))
		1704	{
		1705	struct coro *next = SvSTATE_hv (next_sv);
		1706
		1707	/* cannot transfer to destroyed coros, skip and look for next */
		1708	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
		1709	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */
		1710	else
		1711	{
		1712	next->flags &= ~CF_READY;
		1713	--coro_nready;
		1714
		1715	prepare_schedule_to (aTHX_ ta, next);
		1716	break;
		1717	}
		1718	}
		1719	else
		1720	{
		1721	/* nothing to schedule: call the idle handler */
		1722	if (SvROK (sv_idle)
		1723	&& SvOBJECT (SvRV (sv_idle)))
		1724	{
		1725	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
		1726	api_ready (aTHX_ SvRV (sv_idle));
		1727	--coro_nready;
		1728	}
		1729	else
		1730	{
		1731	dSP;
		1732
		1733	ENTER;
		1734	SAVETMPS;
		1735
		1736	PUSHMARK (SP);
		1737	PUTBACK;
		1738	call_sv (sv_idle, G_VOID | G_DISCARD);
		1739
		1740	FREETMPS;
		1741	LEAVE;
		1742	}
		1743	}
		1744	}
		1745	}
		1746
1665	INLINE void	1747	INLINE void
1666	prepare_cede (pTHX_ struct coro_transfer_args *ta)	1748	prepare_cede (pTHX_ struct coro_transfer_args *ta)
1667	{	1749	{
1668	api_ready (aTHX_ coro_current);	1750	api_ready (aTHX_ coro_current);
1669	prepare_schedule (aTHX_ ta);	1751	prepare_schedule (aTHX_ ta);
…		…
1688	{	1770	{
1689	struct coro_transfer_args ta;	1771	struct coro_transfer_args ta;
1690		1772
1691	prepare_schedule (aTHX_ &ta);	1773	prepare_schedule (aTHX_ &ta);
1692	TRANSFER (ta, 1);	1774	TRANSFER (ta, 1);
		1775	}
		1776
		1777	static void
		1778	api_schedule_to (pTHX_ SV *coro_sv)
		1779	{
		1780	struct coro_transfer_args ta;
		1781	struct coro *next = SvSTATE (coro_sv);
		1782
		1783	SvREFCNT_inc_NN (coro_sv);
		1784	prepare_schedule_to (aTHX_ &ta, next);
1693	}	1785	}
1694		1786
1695	static int	1787	static int
1696	api_cede (pTHX)	1788	api_cede (pTHX)
1697	{	1789	{
…		…
1726	static void	1818	static void
1727	api_trace (pTHX_ SV *coro_sv, int flags)	1819	api_trace (pTHX_ SV *coro_sv, int flags)
1728	{	1820	{
1729	struct coro *coro = SvSTATE (coro_sv);	1821	struct coro *coro = SvSTATE (coro_sv);
1730		1822
		1823	if (coro->flags & CF_RUNNING)
		1824	croak ("cannot enable tracing on a running coroutine, caught");
		1825
1731	if (flags & CC_TRACE)	1826	if (flags & CC_TRACE)
1732	{	1827	{
1733	if (!coro->cctx)	1828	if (!coro->cctx)
1734	coro->cctx = cctx_new_run ();	1829	coro->cctx = cctx_new_run ();
1735	else if (!(coro->cctx->flags & CC_TRACE))	1830	else if (!(coro->cctx->flags & CC_TRACE))
1736	croak ("cannot enable tracing on coroutine with custom stack,");	1831	croak ("cannot enable tracing on coroutine with custom stack, caught");
1737		1832
1738	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));	1833	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1739	}	1834	}
1740	else if (coro->cctx && coro->cctx->flags & CC_TRACE)	1835	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1741	{	1836	{
…		…
1746	else	1841	else
1747	coro->slot->runops = RUNOPS_DEFAULT;	1842	coro->slot->runops = RUNOPS_DEFAULT;
1748	}	1843	}
1749	}	1844	}
1750		1845
		1846	static void
		1847	coro_call_on_destroy (pTHX_ struct coro *coro)
		1848	{
		1849	SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
		1850	SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
		1851
		1852	if (on_destroyp)
		1853	{
		1854	AV *on_destroy = (AV *)SvRV (*on_destroyp);
		1855
		1856	while (AvFILLp (on_destroy) >= 0)
		1857	{
		1858	dSP; /* don't disturb outer sp */
		1859	SV *cb = av_pop (on_destroy);
		1860
		1861	PUSHMARK (SP);
		1862
		1863	if (statusp)
		1864	{
		1865	int i;
		1866	AV *status = (AV *)SvRV (*statusp);
		1867	EXTEND (SP, AvFILLp (status) + 1);
		1868
		1869	for (i = 0; i <= AvFILLp (status); ++i)
		1870	PUSHs (AvARRAY (status)[i]);
		1871	}
		1872
		1873	PUTBACK;
		1874	call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
		1875	}
		1876	}
		1877	}
		1878
		1879	static void
		1880	slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1881	{
		1882	int i;
		1883	HV *hv = (HV *)SvRV (coro_current);
		1884	AV *av = newAV ();
		1885
		1886	av_extend (av, items - 1);
		1887	for (i = 0; i < items; ++i)
		1888	av_push (av, SvREFCNT_inc_NN (arg [i]));
		1889
		1890	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
		1891
		1892	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
		1893	api_ready (aTHX_ sv_manager);
		1894
		1895	frame->prepare = prepare_schedule;
		1896	frame->check = slf_check_repeat;
		1897
		1898	/* as a minor optimisation, we could unwind all stacks here */
		1899	/* but that puts extra pressure on pp_slf, and is not worth much */
		1900	/*coro_unwind_stacks (aTHX);*/
		1901	}
		1902
		1903	/*****************************************************************************/
		1904	/* async pool handler */
		1905
		1906	static int
		1907	slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
		1908	{
		1909	HV *hv = (HV *)SvRV (coro_current);
		1910	struct coro *coro = (struct coro *)frame->data;
		1911
		1912	if (!coro->invoke_cb)
		1913	return 1; /* loop till we have invoke */
		1914	else
		1915	{
		1916	hv_store (hv, "desc", sizeof ("desc") - 1,
		1917	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1918
		1919	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
		1920
		1921	{
		1922	dSP;
		1923	XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
		1924	PUTBACK;
		1925	}
		1926
		1927	SvREFCNT_dec (GvAV (PL_defgv));
		1928	GvAV (PL_defgv) = coro->invoke_av;
		1929	coro->invoke_av = 0;
		1930
		1931	return 0;
		1932	}
		1933	}
		1934
		1935	static void
		1936	slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1937	{
		1938	HV *hv = (HV *)SvRV (coro_current);
		1939	struct coro *coro = SvSTATE_hv ((SV *)hv);
		1940
		1941	if (expect_true (coro->saved_deffh))
		1942	{
		1943	/* subsequent iteration */
		1944	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
		1945	coro->saved_deffh = 0;
		1946
		1947	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
		1948	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1949	{
		1950	coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
		1951	coro->invoke_av = newAV ();
		1952
		1953	frame->prepare = prepare_nop;
		1954	}
		1955	else
		1956	{
		1957	av_clear (GvAV (PL_defgv));
		1958	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
		1959
		1960	coro->prio = 0;
		1961
		1962	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1963	api_trace (aTHX_ coro_current, 0);
		1964
		1965	frame->prepare = prepare_schedule;
		1966	av_push (av_async_pool, SvREFCNT_inc (hv));
		1967	}
		1968	}
		1969	else
		1970	{
		1971	/* first iteration, simply fall through */
		1972	frame->prepare = prepare_nop;
		1973	}
		1974
		1975	frame->check = slf_check_pool_handler;
		1976	frame->data = (void *)coro;
		1977	}
		1978
1751	/*****************************************************************************/	1979	/*****************************************************************************/
1752	/* rouse callback */	1980	/* rouse callback */
1753		1981
1754	#define CORO_MAGIC_type_rouse PERL_MAGIC_ext	1982	#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
1755		1983
…		…
1760	SV *data = (SV *)GENSUB_ARG;	1988	SV *data = (SV *)GENSUB_ARG;
1761		1989
1762	if (SvTYPE (SvRV (data)) != SVt_PVAV)	1990	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1763	{	1991	{
1764	/* first call, set args */	1992	/* first call, set args */
1765	int i;
1766	AV *av = newAV ();	1993	AV *av = newAV ();
1767	SV *coro = SvRV (data);	1994	SV *coro = SvRV (data);
1768		1995
1769	SvRV_set (data, (SV *)av);	1996	SvRV_set (data, (SV *)av);
1770	api_ready (aTHX_ coro);	1997	api_ready (aTHX_ coro);
…		…
1911	static void	2138	static void
1912	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2139	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1913	{	2140	{
1914	frame->prepare = prepare_schedule;	2141	frame->prepare = prepare_schedule;
1915	frame->check = slf_check_nop;	2142	frame->check = slf_check_nop;
		2143	}
		2144
		2145	static void
		2146	slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
		2147	{
		2148	struct coro *next = (struct coro *)slf_frame.data;
		2149
		2150	SvREFCNT_inc_NN (next->hv);
		2151	prepare_schedule_to (aTHX_ ta, next);
		2152	}
		2153
		2154	static void
		2155	slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2156	{
		2157	if (!items)
		2158	croak ("Coro::schedule_to expects a coroutine argument, caught");
		2159
		2160	frame->data = (void *)SvSTATE (arg [0]);
		2161	frame->prepare = slf_prepare_schedule_to;
		2162	frame->check = slf_check_nop;
		2163	}
		2164
		2165	static void
		2166	slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2167	{
		2168	api_ready (aTHX_ SvRV (coro_current));
		2169
		2170	slf_init_schedule_to (aTHX_ frame, cv, arg, items);
1916	}	2171	}
1917		2172
1918	static void	2173	static void
1919	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2174	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1920	{	2175	{
…		…
2066	}	2321	}
2067	else	2322	else
2068	slf_argc = 0;	2323	slf_argc = 0;
2069		2324
2070	PL_op->op_ppaddr = pp_slf;	2325	PL_op->op_ppaddr = pp_slf;
2071	PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */	2326	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2072		2327
2073	PL_op = (OP *)&slf_restore;	2328	PL_op = (OP *)&slf_restore;
		2329	}
		2330
		2331	/*****************************************************************************/
		2332	/* dynamic wind */
		2333
		2334	static void
		2335	on_enterleave_call (pTHX_ SV *cb)
		2336	{
		2337	dSP;
		2338
		2339	PUSHSTACK;
		2340
		2341	PUSHMARK (SP);
		2342	PUTBACK;
		2343	call_sv (cb, G_VOID | G_DISCARD);
		2344	SPAGAIN;
		2345
		2346	POPSTACK;
		2347	}
		2348
		2349	static SV *
		2350	coro_avp_pop_and_free (pTHX_ AV **avp)
		2351	{
		2352	AV *av = *avp;
		2353	SV *res = av_pop (av);
		2354
		2355	if (AvFILLp (av) < 0)
		2356	{
		2357	*avp = 0;
		2358	SvREFCNT_dec (av);
		2359	}
		2360
		2361	return res;
		2362	}
		2363
		2364	static void
		2365	coro_pop_on_enter (pTHX_ void *coro)
		2366	{
		2367	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
		2368	SvREFCNT_dec (cb);
		2369	}
		2370
		2371	static void
		2372	coro_pop_on_leave (pTHX_ void *coro)
		2373	{
		2374	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
		2375	on_enterleave_call (aTHX_ sv_2mortal (cb));
2074	}	2376	}
2075		2377
2076	/*****************************************************************************/	2378	/*****************************************************************************/
2077	/* PerlIO::cede */	2379	/* PerlIO::cede */
2078		2380
…		…
2159	SV **ary;	2461	SV **ary;
2160		2462
2161	/* unfortunately, building manually saves memory */	2463	/* unfortunately, building manually saves memory */
2162	Newx (ary, 2, SV *);	2464	Newx (ary, 2, SV *);
2163	AvALLOC (av) = ary;	2465	AvALLOC (av) = ary;
		2466	#if PERL_VERSION_ATLEAST (5,10,0)
2164	/*AvARRAY (av) = ary;*/	2467	AvARRAY (av) = ary;
		2468	#else
2165	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */	2469	/* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
		2470	/* -DDEBUGGING flags this as a bug, despite it perfectly working */
		2471	SvPVX ((SV *)av) = (char *)ary;
		2472	#endif
2166	AvMAX (av) = 1;	2473	AvMAX (av) = 1;
2167	AvFILLp (av) = 0;	2474	AvFILLp (av) = 0;
2168	ary [0] = newSViv (count);	2475	ary [0] = newSViv (count);
2169		2476
2170	return newRV_noinc ((SV *)av);	2477	return newRV_noinc ((SV *)av);
…		…
2299	{	2606	{
2300	if (items >= 2)	2607	if (items >= 2)
2301	{	2608	{
2302	/* callback form */	2609	/* callback form */
2303	AV *av = (AV *)SvRV (arg [0]);	2610	AV *av = (AV *)SvRV (arg [0]);
2304	CV *cb_cv = coro_sv_2cv (arg [1]);	2611	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2305		2612
2306	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2613	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2307		2614
2308	if (SvIVX (AvARRAY (av)[0]) > 0)	2615	if (SvIVX (AvARRAY (av)[0]) > 0)
2309	coro_semaphore_adjust (aTHX_ av, 0);	2616	coro_semaphore_adjust (aTHX_ av, 0);
…		…
2395	dXSARGS;	2702	dXSARGS;
2396	AV *state = (AV *)GENSUB_ARG;	2703	AV *state = (AV *)GENSUB_ARG;
2397	SV *coro = av_pop (state);	2704	SV *coro = av_pop (state);
2398	SV *data_sv = newSV (sizeof (struct io_state));	2705	SV *data_sv = newSV (sizeof (struct io_state));
2399		2706
2400	av_extend (state, items);	2707	av_extend (state, items - 1);
2401		2708
2402	sv_upgrade (data_sv, SVt_PV);	2709	sv_upgrade (data_sv, SVt_PV);
2403	SvCUR_set (data_sv, sizeof (struct io_state));	2710	SvCUR_set (data_sv, sizeof (struct io_state));
2404	SvPOK_only (data_sv);	2711	SvPOK_only (data_sv);
2405		2712
…		…
2540	XSRETURN_EMPTY;	2847	XSRETURN_EMPTY;
2541	}	2848	}
2542		2849
2543	/*****************************************************************************/	2850	/*****************************************************************************/
2544		2851
		2852	#if CORO_CLONE
		2853	# include "clone.c"
		2854	#endif
		2855
2545	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	2856	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2546		2857
2547	PROTOTYPES: DISABLE	2858	PROTOTYPES: DISABLE
2548		2859
2549	BOOT:	2860	BOOT:
…		…
2553	coro_thx = PERL_GET_CONTEXT;	2864	coro_thx = PERL_GET_CONTEXT;
2554	# endif	2865	# endif
2555	#endif	2866	#endif
2556	BOOT_PAGESIZE;	2867	BOOT_PAGESIZE;
2557		2868
		2869	cctx_current = cctx_new_empty ();
		2870
2558	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);	2871	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2559	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);	2872	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2560		2873
2561	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;	2874	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2562	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;	2875	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
…		…
2581		2894
2582	{	2895	{
2583	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));	2896	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2584		2897
2585	if (!PL_custom_op_names) PL_custom_op_names = newHV ();	2898	if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2586	hv_store_ent (PL_custom_op_names, slf,	2899	hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2587	newSVpv ("coro_slf", 0), 0);
2588		2900
2589	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();	2901	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2590	hv_store_ent (PL_custom_op_descs, slf,	2902	hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2591	newSVpv ("coro schedule like function", 0), 0);
2592	}	2903	}
2593		2904
2594	coroapi.ver = CORO_API_VERSION;	2905	coroapi.ver = CORO_API_VERSION;
2595	coroapi.rev = CORO_API_REVISION;	2906	coroapi.rev = CORO_API_REVISION;
2596		2907
…		…
2627	CV *cb;	2938	CV *cb;
2628	int i;	2939	int i;
2629		2940
2630	if (items > 1)	2941	if (items > 1)
2631	{	2942	{
2632	cb = coro_sv_2cv (ST (1));	2943	cb = coro_sv_2cv (aTHX_ ST (1));
2633		2944
2634	if (!ix)	2945	if (!ix)
2635	{	2946	{
2636	if (CvISXSUB (cb))	2947	if (CvISXSUB (cb))
2637	croak ("Coro::State doesn't support XS functions as coroutine start, caught");	2948	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
…		…
2654	mg->mg_flags |= MGf_DUP;	2965	mg->mg_flags |= MGf_DUP;
2655	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	2966	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2656		2967
2657	if (items > 1)	2968	if (items > 1)
2658	{	2969	{
2659	av_extend (coro->args, items - 1 + ix);	2970	av_extend (coro->args, items - 1 + ix - 1);
2660		2971
2661	if (ix)	2972	if (ix)
2662	{	2973	{
2663	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));	2974	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2664	cb = cv_coro_run;	2975	cb = cv_coro_run;
…		…
2689	void	3000	void
2690	_exit (int code)	3001	_exit (int code)
2691	PROTOTYPE: $	3002	PROTOTYPE: $
2692	CODE:	3003	CODE:
2693	_exit (code);	3004	_exit (code);
		3005
		3006	SV *
		3007	clone (Coro::State coro)
		3008	CODE:
		3009	{
		3010	#if CORO_CLONE
		3011	struct coro *ncoro = coro_clone (aTHX_ coro);
		3012	MAGIC *mg;
		3013	/* TODO: too much duplication */
		3014	ncoro->hv = newHV ();
		3015	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
		3016	mg->mg_flags |= MGf_DUP;
		3017	RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
		3018	#else
		3019	croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
		3020	#endif
		3021	}
		3022	OUTPUT:
		3023	RETVAL
2694		3024
2695	int	3025	int
2696	cctx_stacksize (int new_stacksize = 0)	3026	cctx_stacksize (int new_stacksize = 0)
2697	PROTOTYPE: ;$	3027	PROTOTYPE: ;$
2698	CODE:	3028	CODE:
…		…
2748	eval = 1	3078	eval = 1
2749	CODE:	3079	CODE:
2750	{	3080	{
2751	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3081	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2752	{	3082	{
2753	struct coro temp;	3083	struct coro *current = SvSTATE_current;
2754		3084
2755	if (!(coro->flags & CF_RUNNING))	3085	if (current != coro)
2756	{	3086	{
2757	PUTBACK;	3087	PUTBACK;
2758	save_perl (aTHX_ &temp);	3088	save_perl (aTHX_ current);
2759	load_perl (aTHX_ coro);	3089	load_perl (aTHX_ coro);
		3090	SPAGAIN;
2760	}	3091	}
2761		3092
2762	{
2763	dSP;
2764	ENTER;
2765	SAVETMPS;
2766	PUTBACK;
2767	PUSHSTACK;	3093	PUSHSTACK;
		3094
2768	PUSHMARK (SP);	3095	PUSHMARK (SP);
		3096	PUTBACK;
2769		3097
2770	if (ix)	3098	if (ix)
2771	eval_sv (coderef, 0);	3099	eval_sv (coderef, 0);
2772	else	3100	else
2773	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3101	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2774		3102
2775	POPSTACK;	3103	POPSTACK;
2776	SPAGAIN;	3104	SPAGAIN;
2777	FREETMPS;
2778	LEAVE;
2779	PUTBACK;
2780	}
2781		3105
2782	if (!(coro->flags & CF_RUNNING))	3106	if (current != coro)
2783	{	3107	{
		3108	PUTBACK;
2784	save_perl (aTHX_ coro);	3109	save_perl (aTHX_ coro);
2785	load_perl (aTHX_ &temp);	3110	load_perl (aTHX_ current);
2786	SPAGAIN;	3111	SPAGAIN;
2787	}	3112	}
2788	}	3113	}
2789	}	3114	}
2790		3115
…		…
2794	ALIAS:	3119	ALIAS:
2795	is_ready = CF_READY	3120	is_ready = CF_READY
2796	is_running = CF_RUNNING	3121	is_running = CF_RUNNING
2797	is_new = CF_NEW	3122	is_new = CF_NEW
2798	is_destroyed = CF_DESTROYED	3123	is_destroyed = CF_DESTROYED
		3124	is_suspended = CF_SUSPENDED
2799	CODE:	3125	CODE:
2800	RETVAL = boolSV (coro->flags & ix);	3126	RETVAL = boolSV (coro->flags & ix);
2801	OUTPUT:	3127	OUTPUT:
2802	RETVAL	3128	RETVAL
2803		3129
…		…
2819		3145
2820	SV *	3146	SV *
2821	has_cctx (Coro::State coro)	3147	has_cctx (Coro::State coro)
2822	PROTOTYPE: $	3148	PROTOTYPE: $
2823	CODE:	3149	CODE:
2824	RETVAL = boolSV (!!coro->cctx);	3150	/* maybe manage the running flag differently */
		3151	RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2825	OUTPUT:	3152	OUTPUT:
2826	RETVAL	3153	RETVAL
2827		3154
2828	int	3155	int
2829	is_traced (Coro::State coro)	3156	is_traced (Coro::State coro)
…		…
2849		3176
2850	void	3177	void
2851	force_cctx ()	3178	force_cctx ()
2852	PROTOTYPE:	3179	PROTOTYPE:
2853	CODE:	3180	CODE:
2854	SvSTATE_current->cctx->idle_sp = 0;	3181	cctx_current->idle_sp = 0;
2855		3182
2856	void	3183	void
2857	swap_defsv (Coro::State self)	3184	swap_defsv (Coro::State self)
2858	PROTOTYPE: $	3185	PROTOTYPE: $
2859	ALIAS:	3186	ALIAS:
…		…
2867	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;	3194	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2868		3195
2869	SV *tmp = *src; *src = *dst; *dst = tmp;	3196	SV *tmp = *src; *src = *dst; *dst = tmp;
2870	}	3197	}
2871		3198
		3199	void
		3200	cancel (Coro::State self)
		3201	CODE:
		3202	coro_state_destroy (aTHX_ self);
		3203	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3204
2872		3205
2873	MODULE = Coro::State PACKAGE = Coro	3206	MODULE = Coro::State PACKAGE = Coro
2874		3207
2875	BOOT:	3208	BOOT:
2876	{	3209	{
2877	int i;	3210	int i;
2878		3211
2879	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2880	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3212	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2881	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3213	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2882	cv_coro_run = get_cv (aTHX_ "Coro::_terminate", GV_ADD);	3214	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
		3215	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2883	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE);	3216	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2884	SvREADONLY_on (coro_current);	3217	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		3218	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
		3219	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3220	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
		3221
		3222	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
		3223	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
		3224	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
		3225	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2885		3226
2886	coro_stash = gv_stashpv ("Coro", TRUE);	3227	coro_stash = gv_stashpv ("Coro", TRUE);
2887		3228
2888	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3229	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
2889	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3230	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
…		…
2897		3238
2898	{	3239	{
2899	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3240	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2900		3241
2901	coroapi.schedule = api_schedule;	3242	coroapi.schedule = api_schedule;
		3243	coroapi.schedule_to = api_schedule_to;
2902	coroapi.cede = api_cede;	3244	coroapi.cede = api_cede;
2903	coroapi.cede_notself = api_cede_notself;	3245	coroapi.cede_notself = api_cede_notself;
2904	coroapi.ready = api_ready;	3246	coroapi.ready = api_ready;
2905	coroapi.is_ready = api_is_ready;	3247	coroapi.is_ready = api_is_ready;
2906	coroapi.nready = coro_nready;	3248	coroapi.nready = coro_nready;
…		…
2911	SvREADONLY_on (sv);	3253	SvREADONLY_on (sv);
2912	}	3254	}
2913	}	3255	}
2914		3256
2915	void	3257	void
		3258	terminate (...)
		3259	CODE:
		3260	CORO_EXECUTE_SLF_XS (slf_init_terminate);
		3261
		3262	void
2916	schedule (...)	3263	schedule (...)
2917	CODE:	3264	CODE:
2918	CORO_EXECUTE_SLF_XS (slf_init_schedule);	3265	CORO_EXECUTE_SLF_XS (slf_init_schedule);
		3266
		3267	void
		3268	schedule_to (...)
		3269	CODE:
		3270	CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
		3271
		3272	void
		3273	cede_to (...)
		3274	CODE:
		3275	CORO_EXECUTE_SLF_XS (slf_init_cede_to);
2919		3276
2920	void	3277	void
2921	cede (...)	3278	cede (...)
2922	CODE:	3279	CODE:
2923	CORO_EXECUTE_SLF_XS (slf_init_cede);	3280	CORO_EXECUTE_SLF_XS (slf_init_cede);
…		…
2978	CODE:	3335	CODE:
2979	RETVAL = coro_nready;	3336	RETVAL = coro_nready;
2980	OUTPUT:	3337	OUTPUT:
2981	RETVAL	3338	RETVAL
2982		3339
2983	# for async_pool speedup
2984	void	3340	void
2985	_pool_1 (SV *cb)	3341	suspend (Coro::State self)
		3342	PROTOTYPE: $
2986	CODE:	3343	CODE:
2987	{	3344	self->flags |= CF_SUSPENDED;
2988	HV *hv = (HV *)SvRV (coro_current);
2989	struct coro *coro = SvSTATE_hv ((SV *)hv);
2990	AV *defav = GvAV (PL_defgv);
2991	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2992	AV *invoke_av;
2993	int i, len;
2994		3345
2995	if (!invoke)	3346	void
		3347	resume (Coro::State self)
		3348	PROTOTYPE: $
		3349	CODE:
		3350	self->flags &= ~CF_SUSPENDED;
		3351
		3352	void
		3353	_pool_handler (...)
		3354	CODE:
		3355	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
		3356
		3357	void
		3358	async_pool (SV *cv, ...)
		3359	PROTOTYPE: &@
		3360	PPCODE:
		3361	{
		3362	HV *hv = (HV *)av_pop (av_async_pool);
		3363	AV *av = newAV ();
		3364	SV *cb = ST (0);
		3365	int i;
		3366
		3367	av_extend (av, items - 2);
		3368	for (i = 1; i < items; ++i)
		3369	av_push (av, SvREFCNT_inc_NN (ST (i)));
		3370
		3371	if ((SV *)hv == &PL_sv_undef)
2996	{	3372	{
2997	SV *old = PL_diehook;	3373	PUSHMARK (SP);
2998	PL_diehook = 0;	3374	EXTEND (SP, 2);
2999	SvREFCNT_dec (old);	3375	PUSHs (sv_Coro);
3000	croak ("\3async_pool terminate\2\n");	3376	PUSHs ((SV *)cv_pool_handler);
		3377	PUTBACK;
		3378	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
		3379	SPAGAIN;
		3380
		3381	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
3001	}	3382	}
3002		3383
3003	SvREFCNT_dec (coro->saved_deffh);
3004	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
3005
3006	hv_store (hv, "desc", sizeof ("desc") - 1,
3007	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
3008
3009	invoke_av = (AV *)SvRV (invoke);
3010	len = av_len (invoke_av);
3011
3012	sv_setsv (cb, AvARRAY (invoke_av)[0]);
3013
3014	if (len > 0)
3015	{	3384	{
3016	av_fill (defav, len - 1);	3385	struct coro *coro = SvSTATE_hv (hv);
3017	for (i = 0; i < len; ++i)	3386
3018	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));	3387	assert (!coro->invoke_cb);
		3388	assert (!coro->invoke_av);
		3389	coro->invoke_cb = SvREFCNT_inc (cb);
		3390	coro->invoke_av = av;
3019	}	3391	}
3020	}
3021		3392
3022	void	3393	api_ready (aTHX_ (SV *)hv);
3023	_pool_2 (SV *cb)
3024	CODE:
3025	{
3026	HV *hv = (HV *)SvRV (coro_current);
3027	struct coro *coro = SvSTATE_hv ((SV *)hv);
3028		3394
3029	sv_setsv (cb, &PL_sv_undef);	3395	if (GIMME_V != G_VOID)
3030		3396	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3031	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;	3397	else
3032	coro->saved_deffh = 0;
3033
3034	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
3035	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
3036	{
3037	SV *old = PL_diehook;
3038	PL_diehook = 0;
3039	SvREFCNT_dec (old);	3398	SvREFCNT_dec (hv);
3040	croak ("\3async_pool terminate\2\n");
3041	}
3042
3043	av_clear (GvAV (PL_defgv));
3044	hv_store (hv, "desc", sizeof ("desc") - 1,
3045	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
3046
3047	coro->prio = 0;
3048
3049	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
3050	api_trace (aTHX_ coro_current, 0);
3051
3052	av_push (av_async_pool, newSVsv (coro_current));
3053	}	3399	}
3054		3400
3055	SV *	3401	SV *
3056	rouse_cb ()	3402	rouse_cb ()
3057	PROTOTYPE:	3403	PROTOTYPE:
…		…
3063	void	3409	void
3064	rouse_wait (...)	3410	rouse_wait (...)
3065	PROTOTYPE: ;$	3411	PROTOTYPE: ;$
3066	PPCODE:	3412	PPCODE:
3067	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3413	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
		3414
		3415	void
		3416	on_enter (SV *block)
		3417	ALIAS:
		3418	on_leave = 1
		3419	PROTOTYPE: &
		3420	CODE:
		3421	{
		3422	struct coro *coro = SvSTATE_current;
		3423	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3424
		3425	block = (SV *)coro_sv_2cv (aTHX_ block);
		3426
		3427	if (!*avp)
		3428	*avp = newAV ();
		3429
		3430	av_push (*avp, SvREFCNT_inc (block));
		3431
		3432	if (!ix)
		3433	on_enterleave_call (aTHX_ block);
		3434
		3435	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around xs calls */
		3436	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3437	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around xs calls */
		3438	}
3068		3439
3069		3440
3070	MODULE = Coro::State PACKAGE = PerlIO::cede	3441	MODULE = Coro::State PACKAGE = PerlIO::cede
3071		3442
3072	BOOT:	3443	BOOT:
…		…
3083	GvSTASH (CvGV (cv))	3454	GvSTASH (CvGV (cv))
3084	);	3455	);
3085	OUTPUT:	3456	OUTPUT:
3086	RETVAL	3457	RETVAL
3087		3458
3088	# helper for Coro::Channel	3459	# helper for Coro::Channel and others
3089	SV *	3460	SV *
3090	_alloc (int count)	3461	_alloc (int count)
3091	CODE:	3462	CODE:
3092	RETVAL = coro_waitarray_new (aTHX_ count);	3463	RETVAL = coro_waitarray_new (aTHX_ count);
3093	OUTPUT:	3464	OUTPUT:
…		…
3151	for (i = 1; i <= wcount; ++i)	3522	for (i = 1; i <= wcount; ++i)
3152	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3523	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3153	}	3524	}
3154	}	3525	}
3155		3526
		3527	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3528
		3529	void
		3530	_may_delete (SV *sem, int count, int extra_refs)
		3531	PPCODE:
		3532	{
		3533	AV *av = (AV *)SvRV (sem);
		3534
		3535	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3536	&& AvFILLp (av) == 0 /* no waiters, just count */
		3537	&& SvIV (AvARRAY (av)[0]) == count)
		3538	XSRETURN_YES;
		3539
		3540	XSRETURN_NO;
		3541	}
		3542
3156	MODULE = Coro::State PACKAGE = Coro::Signal	3543	MODULE = Coro::State PACKAGE = Coro::Signal
3157		3544
3158	SV *	3545	SV *
3159	new (SV *klass)	3546	new (SV *klass)
3160	CODE:	3547	CODE:
…		…
3231		3618
3232	void	3619	void
3233	_register (char *target, char *proto, SV *req)	3620	_register (char *target, char *proto, SV *req)
3234	CODE:	3621	CODE:
3235	{	3622	{
3236	CV *req_cv = coro_sv_2cv (req);	3623	CV *req_cv = coro_sv_2cv (aTHX_ req);
3237	/* newXSproto doesn't return the CV on 5.8 */	3624	/* newXSproto doesn't return the CV on 5.8 */
3238	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3625	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3239	sv_setpv ((SV *)slf_cv, proto);	3626	sv_setpv ((SV *)slf_cv, proto);
3240	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3627	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3241	}	3628	}

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