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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 1.335 by root, Thu Dec 4 04:31:41 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 */
…		…
229	{	247	{
230	SV *defsv;	248	SV *defsv;
231	AV *defav;	249	AV *defav;
232	SV *errsv;	250	SV *errsv;
233	SV *irsgv;	251	SV *irsgv;
		252	HV *hinthv;
234	#define VAR(name,type) type name;	253	#define VAR(name,type) type name;
235	# include "state.h"	254	# include "state.h"
236	#undef VAR	255	#undef VAR
237	} perl_slots;	256	} perl_slots;
238		257
…		…
263	SV *except; /* exception to be thrown */	282	SV *except; /* exception to be thrown */
264	SV *rouse_cb;	283	SV *rouse_cb;
265		284
266	/* async_pool */	285	/* async_pool */
267	SV *saved_deffh;	286	SV *saved_deffh;
		287	SV *invoke_cb;
		288	AV *invoke_av;
268		289
269	/* linked list */	290	/* linked list */
270	struct coro *next, *prev;	291	struct coro *next, *prev;
271	};	292	};
272		293
…		…
289		310
290	/* for Coro.pm */	311	/* for Coro.pm */
291	static SV *coro_current;	312	static SV *coro_current;
292	static SV *coro_readyhook;	313	static SV *coro_readyhook;
293	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	314	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
		315	static CV *cv_coro_run, *cv_coro_terminate;
294	static struct coro *coro_first;	316	static struct coro *coro_first;
295	#define coro_nready coroapi.nready	317	#define coro_nready coroapi.nready
296		318
297	/** lowlevel stuff **********************************************************/	319	/** lowlevel stuff **********************************************************/
298		320
…		…
326	return get_hv (name, create);	348	return get_hv (name, create);
327	}	349	}
328		350
329	/* may croak */	351	/* may croak */
330	INLINE CV *	352	INLINE CV *
331	coro_sv_2cv (SV *sv)	353	coro_sv_2cv (pTHX_ SV *sv)
332	{	354	{
333	HV *st;	355	HV *st;
334	GV *gvp;	356	GV *gvp;
335	return sv_2cv (sv, &st, &gvp, 0);	357	return sv_2cv (sv, &st, &gvp, 0);
336	}	358	}
337		359
		360	/*****************************************************************************/
		361	/* magic glue */
		362
		363	#define CORO_MAGIC_type_cv 26
		364	#define CORO_MAGIC_type_state PERL_MAGIC_ext
		365
		366	#define CORO_MAGIC_NN(sv, type) \
		367	(expect_true (SvMAGIC (sv)->mg_type == type) \
		368	? SvMAGIC (sv) \
		369	: mg_find (sv, type))
		370
		371	#define CORO_MAGIC(sv, type) \
		372	(expect_true (SvMAGIC (sv)) \
		373	? CORO_MAGIC_NN (sv, type) \
		374	: 0)
		375
		376	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		377	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
		378
		379	INLINE struct coro *
		380	SvSTATE_ (pTHX_ SV *coro)
		381	{
		382	HV *stash;
		383	MAGIC *mg;
		384
		385	if (SvROK (coro))
		386	coro = SvRV (coro);
		387
		388	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		389	croak ("Coro::State object required");
		390
		391	stash = SvSTASH (coro);
		392	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		393	{
		394	/* very slow, but rare, check */
		395	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		396	croak ("Coro::State object required");
		397	}
		398
		399	mg = CORO_MAGIC_state (coro);
		400	return (struct coro *)mg->mg_ptr;
		401	}
		402
		403	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		404
		405	/* faster than SvSTATE, but expects a coroutine hv */
		406	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
		407	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
		408
		409	/*****************************************************************************/
		410	/* padlist management and caching */
		411
338	static AV *	412	static AV *
339	coro_clone_padlist (pTHX_ CV *cv)	413	coro_derive_padlist (pTHX_ CV *cv)
340	{	414	{
341	AV *padlist = CvPADLIST (cv);	415	AV *padlist = CvPADLIST (cv);
342	AV *newpadlist, *newpad;	416	AV *newpadlist, *newpad;
343		417
344	newpadlist = newAV ();	418	newpadlist = newAV ();
…		…
349	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	423	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
350	#endif	424	#endif
351	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	425	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
352	--AvFILLp (padlist);	426	--AvFILLp (padlist);
353		427
354	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));	428	av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
355	av_store (newpadlist, 1, (SV *)newpad);	429	av_store (newpadlist, 1, (SV *)newpad);
356		430
357	return newpadlist;	431	return newpadlist;
358	}	432	}
359		433
360	static void	434	static void
361	free_padlist (pTHX_ AV *padlist)	435	free_padlist (pTHX_ AV *padlist)
362	{	436	{
363	/* may be during global destruction */	437	/* may be during global destruction */
364	if (SvREFCNT (padlist))	438	if (!IN_DESTRUCT)
365	{	439	{
366	I32 i = AvFILLp (padlist);	440	I32 i = AvFILLp (padlist);
367	while (i >= 0)	441
		442	while (i > 0) /* special-case index 0 */
368	{	443	{
369	SV **svp = av_fetch (padlist, i--, FALSE);	444	/* we try to be extra-careful here */
370	if (svp)	445	AV *av = (AV *)AvARRAY (padlist)[i--];
371	{	446	I32 j = AvFILLp (av);
372	SV *sv;	447
373	while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))	448	while (j >= 0)
		449	SvREFCNT_dec (AvARRAY (av)[j--]);
		450
		451	AvFILLp (av) = -1;
374	SvREFCNT_dec (sv);	452	SvREFCNT_dec (av);
375
376	SvREFCNT_dec (*svp);
377	}
378	}	453	}
379		454
		455	SvREFCNT_dec (AvARRAY (padlist)[0]);
		456
		457	AvFILLp (padlist) = -1;
380	SvREFCNT_dec ((SV*)padlist);	458	SvREFCNT_dec ((SV*)padlist);
381	}	459	}
382	}	460	}
383		461
384	static int	462	static int
…		…
393		471
394	SvREFCNT_dec (av); /* sv_magicext increased the refcount */	472	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
395		473
396	return 0;	474	return 0;
397	}	475	}
398
399	#define CORO_MAGIC_type_cv 26
400	#define CORO_MAGIC_type_state PERL_MAGIC_ext
401		476
402	static MGVTBL coro_cv_vtbl = {	477	static MGVTBL coro_cv_vtbl = {
403	0, 0, 0, 0,	478	0, 0, 0, 0,
404	coro_cv_free	479	coro_cv_free
405	};	480	};
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		481
450	/* the next two functions merely cache the padlists */	482	/* the next two functions merely cache the padlists */
451	static void	483	static void
452	get_padlist (pTHX_ CV *cv)	484	get_padlist (pTHX_ CV *cv)
453	{	485	{
…		…
464	CV *cp = Perl_cv_clone (aTHX_ cv);	496	CV *cp = Perl_cv_clone (aTHX_ cv);
465	CvPADLIST (cv) = CvPADLIST (cp);	497	CvPADLIST (cv) = CvPADLIST (cp);
466	CvPADLIST (cp) = 0;	498	CvPADLIST (cp) = 0;
467	SvREFCNT_dec (cp);	499	SvREFCNT_dec (cp);
468	#else	500	#else
469	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	501	CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
470	#endif	502	#endif
471	}	503	}
472	}	504	}
473		505
474	static void	506	static void
…		…
481	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);	513	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
482		514
483	av = (AV *)mg->mg_obj;	515	av = (AV *)mg->mg_obj;
484		516
485	if (expect_false (AvFILLp (av) >= AvMAX (av)))	517	if (expect_false (AvFILLp (av) >= AvMAX (av)))
486	av_extend (av, AvMAX (av) + 1);	518	av_extend (av, AvFILLp (av) + 1);
487		519
488	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	520	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
489	}	521	}
490		522
491	/** load & save, init *******************************************************/	523	/** load & save, init *******************************************************/
…		…
496	perl_slots *slot = c->slot;	528	perl_slots *slot = c->slot;
497	c->slot = 0;	529	c->slot = 0;
498		530
499	PL_mainstack = c->mainstack;	531	PL_mainstack = c->mainstack;
500		532
501	GvSV (PL_defgv) = slot->defsv;	533	GvSV (PL_defgv) = slot->defsv;
502	GvAV (PL_defgv) = slot->defav;	534	GvAV (PL_defgv) = slot->defav;
503	GvSV (PL_errgv) = slot->errsv;	535	GvSV (PL_errgv) = slot->errsv;
504	GvSV (irsgv) = slot->irsgv;	536	GvSV (irsgv) = slot->irsgv;
		537	GvHV (PL_hintgv) = slot->hinthv;
505		538
506	#define VAR(name,type) PL_ ## name = slot->name;	539	#define VAR(name,type) PL_ ## name = slot->name;
507	# include "state.h"	540	# include "state.h"
508	#undef VAR	541	#undef VAR
509		542
…		…
595	c->mainstack = PL_mainstack;	628	c->mainstack = PL_mainstack;
596		629
597	{	630	{
598	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	631	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
599		632
600	slot->defav = GvAV (PL_defgv);	633	slot->defav = GvAV (PL_defgv);
601	slot->defsv = DEFSV;	634	slot->defsv = DEFSV;
602	slot->errsv = ERRSV;	635	slot->errsv = ERRSV;
603	slot->irsgv = GvSV (irsgv);	636	slot->irsgv = GvSV (irsgv);
		637	slot->hinthv = GvHV (PL_hintgv);
604		638
605	#define VAR(name,type) slot->name = PL_ ## name;	639	#define VAR(name,type) slot->name = PL_ ## name;
606	# include "state.h"	640	# include "state.h"
607	#undef VAR	641	#undef VAR
608	}	642	}
…		…
686	#if !PERL_VERSION_ATLEAST (5,10,0)	720	#if !PERL_VERSION_ATLEAST (5,10,0)
687	Safefree (PL_retstack);	721	Safefree (PL_retstack);
688	#endif	722	#endif
689	}	723	}
690		724
		725	#define CORO_RSS \
		726	rss += sizeof (SYM (curstackinfo)); \
		727	rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
		728	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
		729	rss += SYM (tmps_max) * sizeof (SV *); \
		730	rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
		731	rss += SYM (scopestack_max) * sizeof (I32); \
		732	rss += SYM (savestack_max) * sizeof (ANY);
		733
691	static size_t	734	static size_t
692	coro_rss (pTHX_ struct coro *coro)	735	coro_rss (pTHX_ struct coro *coro)
693	{	736	{
694	size_t rss = sizeof (*coro);	737	size_t rss = sizeof (*coro);
695		738
696	if (coro->mainstack)	739	if (coro->mainstack)
697	{	740	{
698	perl_slots tmp_slot;
699	perl_slots *slot;
700
701	if (coro->flags & CF_RUNNING)	741	if (coro->flags & CF_RUNNING)
702	{	742	{
703	slot = &tmp_slot;	743	#define SYM(sym) PL_ ## sym
704		744	CORO_RSS;
705	#define VAR(name,type) slot->name = PL_ ## name;
706	# include "state.h"
707	#undef VAR	745	#undef SYM
708	}	746	}
709	else	747	else
710	slot = coro->slot;
711
712	if (slot)
713	{	748	{
714	rss += sizeof (slot->curstackinfo);	749	#define SYM(sym) coro->slot->sym
715	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	750	CORO_RSS;
716	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	751	#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	}	752	}
726	}	753	}
727		754
728	return rss;	755	return rss;
729	}	756	}
…		…
831	slf_check_nop (pTHX_ struct CoroSLF *frame)	858	slf_check_nop (pTHX_ struct CoroSLF *frame)
832	{	859	{
833	return 0;	860	return 0;
834	}	861	}
835		862
		863	static int
		864	slf_check_repeat (pTHX_ struct CoroSLF *frame)
		865	{
		866	return 1;
		867	}
		868
836	static UNOP coro_setup_op;	869	static UNOP coro_setup_op;
837		870
838	static void NOINLINE /* noinline to keep it out of the transfer fast path */	871	static void NOINLINE /* noinline to keep it out of the transfer fast path */
839	coro_setup (pTHX_ struct coro *coro)	872	coro_setup (pTHX_ struct coro *coro)
840	{	873	{
…		…
845		878
846	PL_runops = RUNOPS_DEFAULT;	879	PL_runops = RUNOPS_DEFAULT;
847	PL_curcop = &PL_compiling;	880	PL_curcop = &PL_compiling;
848	PL_in_eval = EVAL_NULL;	881	PL_in_eval = EVAL_NULL;
849	PL_comppad = 0;	882	PL_comppad = 0;
		883	PL_comppad_name = 0;
		884	PL_comppad_name_fill = 0;
		885	PL_comppad_name_floor = 0;
850	PL_curpm = 0;	886	PL_curpm = 0;
851	PL_curpad = 0;	887	PL_curpad = 0;
852	PL_localizing = 0;	888	PL_localizing = 0;
853	PL_dirty = 0;	889	PL_dirty = 0;
854	PL_restartop = 0;	890	PL_restartop = 0;
855	#if PERL_VERSION_ATLEAST (5,10,0)	891	#if PERL_VERSION_ATLEAST (5,10,0)
856	PL_parser = 0;	892	PL_parser = 0;
857	#endif	893	#endif
		894	PL_hints = 0;
858		895
859	/* recreate the die/warn hooks */	896	/* recreate the die/warn hooks */
860	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );	897	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);	898	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
862		899
863	GvSV (PL_defgv) = newSV (0);	900	GvSV (PL_defgv) = newSV (0);
864	GvAV (PL_defgv) = coro->args; coro->args = 0;	901	GvAV (PL_defgv) = coro->args; coro->args = 0;
865	GvSV (PL_errgv) = newSV (0);	902	GvSV (PL_errgv) = newSV (0);
866	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	903	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		904	GvHV (PL_hintgv) = 0;
867	PL_rs = newSVsv (GvSV (irsgv));	905	PL_rs = newSVsv (GvSV (irsgv));
868	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	906	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
869		907
870	{	908	{
871	dSP;	909	dSP;
872	UNOP myop;	910	UNOP myop;
873		911
874	Zero (&myop, 1, UNOP);	912	Zero (&myop, 1, UNOP);
875	myop.op_next = Nullop;	913	myop.op_next = Nullop;
		914	myop.op_type = OP_ENTERSUB;
876	myop.op_flags = OPf_WANT_VOID;	915	myop.op_flags = OPf_WANT_VOID;
877		916
878	PUSHMARK (SP);	917	PUSHMARK (SP);
879	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	918	PUSHs ((SV *)coro->startcv);
880	PUTBACK;	919	PUTBACK;
881	PL_op = (OP *)&myop;	920	PL_op = (OP *)&myop;
882	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	921	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
883	SPAGAIN;
884	}	922	}
885		923
886	/* this newly created coroutine might be run on an existing cctx which most	924	/* 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.	925	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
888	*/	926	*/
889	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	927	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 */	928	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
891		929
892	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	930	/* 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;	931	coro_setup_op.op_next = PL_op;
894	coro_setup_op.op_type = OP_CUSTOM;	932	coro_setup_op.op_type = OP_ENTERSUB;
895	coro_setup_op.op_ppaddr = pp_slf;	933	coro_setup_op.op_ppaddr = pp_slf;
896	/* no flags required, as an init function won't be called */	934	/* no flags etc. required, as an init function won't be called */
897		935
898	PL_op = (OP *)&coro_setup_op;	936	PL_op = (OP *)&coro_setup_op;
899		937
900	/* copy throw, in case it was set before coro_setup */	938	/* copy throw, in case it was set before coro_setup */
901	CORO_THROW = coro->except;	939	CORO_THROW = coro->except;
902	}	940	}
903		941
904	static void	942	static void
905	coro_destruct (pTHX_ struct coro *coro)	943	coro_destruct_perl (pTHX_ struct coro *coro)
906	{	944	{
907	if (!IN_DESTRUCT)	945	if (!IN_DESTRUCT)
908	{	946	{
909	/* restore all saved variables and stuff */	947	/* restore all saved variables and stuff */
910	LEAVE_SCOPE (0);	948	LEAVE_SCOPE (0);
…		…
925	SvREFCNT_dec (GvAV (PL_defgv));	963	SvREFCNT_dec (GvAV (PL_defgv));
926	SvREFCNT_dec (GvSV (PL_errgv));	964	SvREFCNT_dec (GvSV (PL_errgv));
927	SvREFCNT_dec (PL_defoutgv);	965	SvREFCNT_dec (PL_defoutgv);
928	SvREFCNT_dec (PL_rs);	966	SvREFCNT_dec (PL_rs);
929	SvREFCNT_dec (GvSV (irsgv));	967	SvREFCNT_dec (GvSV (irsgv));
		968	SvREFCNT_dec (GvHV (PL_hintgv));
930		969
931	SvREFCNT_dec (PL_diehook);	970	SvREFCNT_dec (PL_diehook);
932	SvREFCNT_dec (PL_warnhook);	971	SvREFCNT_dec (PL_warnhook);
933		972
934	SvREFCNT_dec (CORO_THROW);
935	SvREFCNT_dec (coro->saved_deffh);	973	SvREFCNT_dec (coro->saved_deffh);
936	SvREFCNT_dec (coro->rouse_cb);	974	SvREFCNT_dec (coro->rouse_cb);
		975	SvREFCNT_dec (coro->invoke_cb);
		976	SvREFCNT_dec (coro->invoke_av);
937		977
938	coro_destruct_stacks (aTHX);	978	coro_destruct_stacks (aTHX);
939	}	979	}
940		980
941	INLINE void	981	INLINE void
…		…
951	static int	991	static int
952	runops_trace (pTHX)	992	runops_trace (pTHX)
953	{	993	{
954	COP *oldcop = 0;	994	COP *oldcop = 0;
955	int oldcxix = -2;	995	int oldcxix = -2;
956	struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
957	coro_cctx *cctx = coro->cctx;
958		996
959	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))	997	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
960	{	998	{
961	PERL_ASYNC_CHECK ();	999	PERL_ASYNC_CHECK ();
962		1000
963	if (cctx->flags & CC_TRACE_ALL)	1001	if (cctx_current->flags & CC_TRACE_ALL)
964	{	1002	{
965	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)	1003	if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
966	{	1004	{
967	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1005	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
968	SV **bot, **top;	1006	SV **bot, **top;
969	AV *av = newAV (); /* return values */	1007	AV *av = newAV (); /* return values */
970	SV **cb;	1008	SV **cb;
…		…
1007		1045
1008	if (PL_curcop != &PL_compiling)	1046	if (PL_curcop != &PL_compiling)
1009	{	1047	{
1010	SV **cb;	1048	SV **cb;
1011		1049
1012	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)	1050	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1013	{	1051	{
1014	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1052	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1015		1053
1016	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1054	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1017	{	1055	{
1018	runops_proc_t old_runops = PL_runops;
1019	dSP;	1056	dSP;
1020	GV *gv = CvGV (cx->blk_sub.cv);	1057	GV *gv = CvGV (cx->blk_sub.cv);
1021	SV *fullname = sv_2mortal (newSV (0));	1058	SV *fullname = sv_2mortal (newSV (0));
1022		1059
1023	if (isGV (gv))	1060	if (isGV (gv))
…		…
1041	}	1078	}
1042		1079
1043	oldcxix = cxstack_ix;	1080	oldcxix = cxstack_ix;
1044	}	1081	}
1045		1082
1046	if (cctx->flags & CC_TRACE_LINE)	1083	if (cctx_current->flags & CC_TRACE_LINE)
1047	{	1084	{
1048	dSP;	1085	dSP;
1049		1086
1050	PL_runops = RUNOPS_DEFAULT;	1087	PL_runops = RUNOPS_DEFAULT;
1051	ENTER;	1088	ENTER;
…		…
1070		1107
1071	TAINT_NOT;	1108	TAINT_NOT;
1072	return 0;	1109	return 0;
1073	}	1110	}
1074		1111
1075	static struct coro_cctx *cctx_ssl_cctx;
1076	static struct CoroSLF cctx_ssl_frame;	1112	static struct CoroSLF cctx_ssl_frame;
1077		1113
1078	static void	1114	static void
1079	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)	1115	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1080	{	1116	{
1081	ta->prev = (struct coro *)cctx_ssl_cctx;
1082	ta->next = 0;	1117	ta->prev = 0;
1083	}	1118	}
1084		1119
1085	static int	1120	static int
1086	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)	1121	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1087	{	1122	{
…		…
1090	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */	1125	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1091	}	1126	}
1092		1127
1093	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */	1128	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1094	static void NOINLINE	1129	static void NOINLINE
1095	cctx_prepare (pTHX_ coro_cctx *cctx)	1130	cctx_prepare (pTHX)
1096	{	1131	{
1097	PL_top_env = &PL_start_env;	1132	PL_top_env = &PL_start_env;
1098		1133
1099	if (cctx->flags & CC_TRACE)	1134	if (cctx_current->flags & CC_TRACE)
1100	PL_runops = runops_trace;	1135	PL_runops = runops_trace;
1101		1136
1102	/* we already must be executing an SLF op, there is no other valid way	1137	/* we already must be executing an SLF op, there is no other valid way
1103	* that can lead to creation of a new cctx */	1138	* that can lead to creation of a new cctx */
1104	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",	1139	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1105	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));	1140	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1106		1141
1107	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */	1142	/* 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;	1143	cctx_ssl_frame = slf_frame;
1110		1144
1111	slf_frame.prepare = slf_prepare_set_stacklevel;	1145	slf_frame.prepare = slf_prepare_set_stacklevel;
1112	slf_frame.check = slf_check_set_stacklevel;	1146	slf_frame.check = slf_check_set_stacklevel;
1113	}	1147	}
…		…
1136	/* normally we would need to skip the entersub here */	1170	/* normally we would need to skip the entersub here */
1137	/* not doing so will re-execute it, which is exactly what we want */	1171	/* not doing so will re-execute it, which is exactly what we want */
1138	/* PL_nop = PL_nop->op_next */	1172	/* PL_nop = PL_nop->op_next */
1139		1173
1140	/* inject a fake subroutine call to cctx_init */	1174	/* inject a fake subroutine call to cctx_init */
1141	cctx_prepare (aTHX_ (coro_cctx *)arg);	1175	cctx_prepare (aTHX);
1142		1176
1143	/* cctx_run is the alternative tail of transfer() */	1177	/* cctx_run is the alternative tail of transfer() */
1144	transfer_tail (aTHX);	1178	transfer_tail (aTHX);
1145		1179
1146	/* somebody or something will hit me for both perl_run and PL_restartop */	1180	/* somebody or something will hit me for both perl_run and PL_restartop */
1147	PL_restartop = PL_op;	1181	PL_restartop = PL_op;
1148	perl_run (PL_curinterp);	1182	perl_run (PL_curinterp);
		1183	/*
		1184	* Unfortunately, there is no way to get at the return values of the
		1185	* coro body here, as perl_run destroys these
		1186	*/
1149		1187
1150	/*	1188	/*
1151	* If perl-run returns we assume exit() was being called or the coro	1189	* 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)	1190	* 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	1191	* 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"	1192	* bootstrap-time "top" top_env, as we cannot restore the "main"
1155	* coroutine as Coro has no such concept	1193	* coroutine as Coro has no such concept.
		1194	* This actually isn't valid with the pthread backend, but OSes requiring
		1195	* that backend are too broken to do it in a standards-compliant way.
1156	*/	1196	*/
1157	PL_top_env = main_top_env;	1197	PL_top_env = main_top_env;
1158	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1198	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1159	}	1199	}
1160	}	1200	}
…		…
1237	cctx_destroy (coro_cctx *cctx)	1277	cctx_destroy (coro_cctx *cctx)
1238	{	1278	{
1239	if (!cctx)	1279	if (!cctx)
1240	return;	1280	return;
1241		1281
		1282	assert (cctx != cctx_current);//D temporary
		1283
1242	--cctx_count;	1284	--cctx_count;
1243	coro_destroy (&cctx->cctx);	1285	coro_destroy (&cctx->cctx);
1244		1286
1245	/* coro_transfer creates new, empty cctx's */	1287	/* coro_transfer creates new, empty cctx's */
1246	if (cctx->sptr)	1288	if (cctx->sptr)
…		…
1309	/* TODO: throwing up here is considered harmful */	1351	/* TODO: throwing up here is considered harmful */
1310		1352
1311	if (expect_true (prev != next))	1353	if (expect_true (prev != next))
1312	{	1354	{
1313	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1355	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,");	1356	croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,");
1315		1357
1316	if (expect_false (next->flags & CF_RUNNING))	1358	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,");	1359	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1318		1360
1319	if (expect_false (next->flags & CF_DESTROYED))	1361	if (expect_false (next->flags & CF_DESTROYED))
…		…
1331	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)	1373	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1332	{	1374	{
1333	dSTACKLEVEL;	1375	dSTACKLEVEL;
1334		1376
1335	/* sometimes transfer is only called to set idle_sp */	1377	/* sometimes transfer is only called to set idle_sp */
1336	if (expect_false (!next))	1378	if (expect_false (!prev))
1337	{	1379	{
1338	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1380	cctx_current->idle_sp = STACKLEVEL;
1339	assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */	1381	assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1340	}	1382	}
1341	else if (expect_true (prev != next))	1383	else if (expect_true (prev != next))
1342	{	1384	{
1343	coro_cctx *prev__cctx;	1385	coro_cctx *cctx_prev;
1344		1386
1345	if (expect_false (prev->flags & CF_NEW))	1387	if (expect_false (prev->flags & CF_NEW))
1346	{	1388	{
1347	/* create a new empty/source context */	1389	/* create a new empty/source context */
1348	prev->cctx = cctx_new_empty ();
1349	prev->flags &= ~CF_NEW;	1390	prev->flags &= ~CF_NEW;
1350	prev->flags |= CF_RUNNING;	1391	prev->flags |= CF_RUNNING;
1351	}	1392	}
1352		1393
1353	prev->flags &= ~CF_RUNNING;	1394	prev->flags &= ~CF_RUNNING;
…		…
1364	coro_setup (aTHX_ next);	1405	coro_setup (aTHX_ next);
1365	}	1406	}
1366	else	1407	else
1367	load_perl (aTHX_ next);	1408	load_perl (aTHX_ next);
1368		1409
1369	prev__cctx = prev->cctx;	1410	assert (!prev->cctx);//D temporary
1370		1411
1371	/* possibly untie and reuse the cctx */	1412	/* possibly untie and reuse the cctx */
1372	if (expect_true (	1413	if (expect_true (
1373	prev__cctx->idle_sp == STACKLEVEL	1414	cctx_current->idle_sp == STACKLEVEL
1374	&& !(prev__cctx->flags & CC_TRACE)	1415	&& !(cctx_current->flags & CC_TRACE)
1375	&& !force_cctx	1416	&& !force_cctx
1376	))	1417	))
1377	{	1418	{
1378	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1419	/* 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));	1420	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1380		1421
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 */	1422	/* 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 */	1423	/* without this the next cctx_get might destroy the running cctx while still in use */
1385	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1424	if (expect_false (CCTX_EXPIRED (cctx_current)))
1386	if (!next->cctx)	1425	if (expect_true (!next->cctx))
1387	next->cctx = cctx_get (aTHX);	1426	next->cctx = cctx_get (aTHX);
1388		1427
1389	cctx_put (prev__cctx);	1428	cctx_put (cctx_current);
1390	}	1429	}
		1430	else
		1431	prev->cctx = cctx_current;
1391		1432
1392	++next->usecount;	1433	++next->usecount;
1393		1434
1394	if (expect_true (!next->cctx))	1435	cctx_prev = cctx_current;
1395	next->cctx = cctx_get (aTHX);	1436	cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1396		1437
1397	if (expect_false (prev__cctx != next->cctx))	1438	next->cctx = 0;
		1439
		1440	if (expect_false (cctx_prev != cctx_current))
1398	{	1441	{
1399	prev__cctx->top_env = PL_top_env;	1442	cctx_prev->top_env = PL_top_env;
1400	PL_top_env = next->cctx->top_env;	1443	PL_top_env = cctx_current->top_env;
1401	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1444	coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1402	}	1445	}
1403		1446
1404	transfer_tail (aTHX);	1447	transfer_tail (aTHX);
1405	}	1448	}
1406	}	1449	}
…		…
1428	--coro_nready;	1471	--coro_nready;
1429	}	1472	}
1430	else	1473	else
1431	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */	1474	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1432		1475
1433	if (coro->mainstack && coro->mainstack != main_mainstack)	1476	if (coro->mainstack
		1477	&& coro->mainstack != main_mainstack
		1478	&& !PL_dirty)
1434	{	1479	{
1435	struct coro temp;	1480	struct coro temp;
1436		1481
1437	assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));	1482	assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1438		1483
1439	save_perl (aTHX_ &temp);	1484	save_perl (aTHX_ &temp);
1440	load_perl (aTHX_ coro);	1485	load_perl (aTHX_ coro);
1441		1486
1442	coro_destruct (aTHX_ coro);	1487	coro_destruct_perl (aTHX_ coro);
1443		1488
1444	load_perl (aTHX_ &temp);	1489	load_perl (aTHX_ &temp);
1445		1490
1446	coro->slot = 0;	1491	coro->slot = 0;
1447	}	1492	}
1448		1493
1449	cctx_destroy (coro->cctx);	1494	cctx_destroy (coro->cctx);
1450	SvREFCNT_dec (coro->startcv);	1495	SvREFCNT_dec (coro->startcv);
1451	SvREFCNT_dec (coro->args);	1496	SvREFCNT_dec (coro->args);
		1497	SvREFCNT_dec (CORO_THROW);
1452		1498
1453	if (coro->next) coro->next->prev = coro->prev;	1499	if (coro->next) coro->next->prev = coro->prev;
1454	if (coro->prev) coro->prev->next = coro->next;	1500	if (coro->prev) coro->prev->next = coro->next;
1455	if (coro == coro_first) coro_first = coro->next;	1501	if (coro == coro_first) coro_first = coro->next;
1456		1502
…		…
1560	{	1606	{
1561	struct coro *coro;	1607	struct coro *coro;
1562	SV *sv_hook;	1608	SV *sv_hook;
1563	void (*xs_hook)(void);	1609	void (*xs_hook)(void);
1564		1610
1565	if (SvROK (coro_sv))
1566	coro_sv = SvRV (coro_sv);
1567
1568	coro = SvSTATE (coro_sv);	1611	coro = SvSTATE (coro_sv);
1569		1612
1570	if (coro->flags & CF_READY)	1613	if (coro->flags & CF_READY)
1571	return 0;	1614	return 0;
1572		1615
…		…
1603	api_is_ready (pTHX_ SV *coro_sv)	1646	api_is_ready (pTHX_ SV *coro_sv)
1604	{	1647	{
1605	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1648	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1606	}	1649	}
1607		1650
		1651	/* expects to own a reference to next->hv */
1608	INLINE void	1652	INLINE void
1609	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1653	prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1610	{	1654	{
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);	1655	SV *prev_sv = SvRV (coro_current);
		1656
1650	ta->prev = SvSTATE_hv (prev_sv);	1657	ta->prev = SvSTATE_hv (prev_sv);
		1658	ta->next = next;
		1659
1651	TRANSFER_CHECK (*ta);	1660	TRANSFER_CHECK (*ta);
1652	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));	1661
1653	ta->next->flags &= ~CF_READY;
1654	SvRV_set (coro_current, next_sv);	1662	SvRV_set (coro_current, (SV *)next->hv);
1655		1663
1656	free_coro_mortal (aTHX);	1664	free_coro_mortal (aTHX);
1657	coro_mortal = prev_sv;	1665	coro_mortal = prev_sv;
1658	}	1666	}
1659		1667
		1668	static void
		1669	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
		1670	{
		1671	for (;;)
		1672	{
		1673	SV *next_sv = coro_deq (aTHX);
		1674
		1675	if (expect_true (next_sv))
		1676	{
		1677	struct coro *next = SvSTATE_hv (next_sv);
		1678
		1679	/* cannot transfer to destroyed coros, skip and look for next */
		1680	if (expect_false (next->flags & CF_DESTROYED))
		1681	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */
		1682	else
		1683	{
		1684	next->flags &= ~CF_READY;
		1685	--coro_nready;
		1686
		1687	prepare_schedule_to (aTHX_ ta, next);
		1688	break;
		1689	}
		1690	}
		1691	else
		1692	{
		1693	/* nothing to schedule: call the idle handler */
		1694	if (SvROK (sv_idle)
		1695	&& SvOBJECT (SvRV (sv_idle)))
		1696	{
		1697	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
		1698	api_ready (aTHX_ SvRV (sv_idle));
		1699	--coro_nready;
		1700	}
		1701	else
		1702	{
		1703	dSP;
		1704
		1705	ENTER;
		1706	SAVETMPS;
		1707
		1708	PUSHMARK (SP);
		1709	PUTBACK;
		1710	call_sv (sv_idle, G_VOID | G_DISCARD);
		1711
		1712	FREETMPS;
		1713	LEAVE;
		1714	}
		1715	}
		1716	}
		1717	}
		1718
1660	INLINE void	1719	INLINE void
1661	prepare_cede (pTHX_ struct coro_transfer_args *ta)	1720	prepare_cede (pTHX_ struct coro_transfer_args *ta)
1662	{	1721	{
1663	api_ready (aTHX_ coro_current);	1722	api_ready (aTHX_ coro_current);
1664	prepare_schedule (aTHX_ ta);	1723	prepare_schedule (aTHX_ ta);
…		…
1683	{	1742	{
1684	struct coro_transfer_args ta;	1743	struct coro_transfer_args ta;
1685		1744
1686	prepare_schedule (aTHX_ &ta);	1745	prepare_schedule (aTHX_ &ta);
1687	TRANSFER (ta, 1);	1746	TRANSFER (ta, 1);
		1747	}
		1748
		1749	static void
		1750	api_schedule_to (pTHX_ SV *coro_sv)
		1751	{
		1752	struct coro_transfer_args ta;
		1753	struct coro *next = SvSTATE (coro_sv);
		1754
		1755	SvREFCNT_inc_NN (coro_sv);
		1756	prepare_schedule_to (aTHX_ &ta, next);
1688	}	1757	}
1689		1758
1690	static int	1759	static int
1691	api_cede (pTHX)	1760	api_cede (pTHX)
1692	{	1761	{
…		…
1721	static void	1790	static void
1722	api_trace (pTHX_ SV *coro_sv, int flags)	1791	api_trace (pTHX_ SV *coro_sv, int flags)
1723	{	1792	{
1724	struct coro *coro = SvSTATE (coro_sv);	1793	struct coro *coro = SvSTATE (coro_sv);
1725		1794
		1795	if (coro->flags & CF_RUNNING)
		1796	croak ("cannot enable tracing on a running coroutine, caught");
		1797
1726	if (flags & CC_TRACE)	1798	if (flags & CC_TRACE)
1727	{	1799	{
1728	if (!coro->cctx)	1800	if (!coro->cctx)
1729	coro->cctx = cctx_new_run ();	1801	coro->cctx = cctx_new_run ();
1730	else if (!(coro->cctx->flags & CC_TRACE))	1802	else if (!(coro->cctx->flags & CC_TRACE))
1731	croak ("cannot enable tracing on coroutine with custom stack,");	1803	croak ("cannot enable tracing on coroutine with custom stack, caught");
1732		1804
1733	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));	1805	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1734	}	1806	}
1735	else if (coro->cctx && coro->cctx->flags & CC_TRACE)	1807	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1736	{	1808	{
…		…
1741	else	1813	else
1742	coro->slot->runops = RUNOPS_DEFAULT;	1814	coro->slot->runops = RUNOPS_DEFAULT;
1743	}	1815	}
1744	}	1816	}
1745		1817
		1818	static void
		1819	coro_call_on_destroy (pTHX_ struct coro *coro)
		1820	{
		1821	SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
		1822	SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
		1823
		1824	if (on_destroyp)
		1825	{
		1826	AV *on_destroy = (AV *)SvRV (*on_destroyp);
		1827
		1828	while (AvFILLp (on_destroy) >= 0)
		1829	{
		1830	dSP; /* don't disturb outer sp */
		1831	SV *cb = av_pop (on_destroy);
		1832
		1833	PUSHMARK (SP);
		1834
		1835	if (statusp)
		1836	{
		1837	int i;
		1838	AV *status = (AV *)SvRV (*statusp);
		1839	EXTEND (SP, AvFILLp (status) + 1);
		1840
		1841	for (i = 0; i <= AvFILLp (status); ++i)
		1842	PUSHs (AvARRAY (status)[i]);
		1843	}
		1844
		1845	PUTBACK;
		1846	call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
		1847	}
		1848	}
		1849	}
		1850
		1851	static void
		1852	slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1853	{
		1854	int i;
		1855	HV *hv = (HV *)SvRV (coro_current);
		1856	AV *av = newAV ();
		1857
		1858	av_extend (av, items - 1);
		1859	for (i = 0; i < items; ++i)
		1860	av_push (av, SvREFCNT_inc_NN (arg [i]));
		1861
		1862	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
		1863
		1864	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
		1865	api_ready (aTHX_ sv_manager);
		1866
		1867	frame->prepare = prepare_schedule;
		1868	frame->check = slf_check_repeat;
		1869	}
		1870
		1871	/*****************************************************************************/
		1872	/* async pool handler */
		1873
		1874	static int
		1875	slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
		1876	{
		1877	HV *hv = (HV *)SvRV (coro_current);
		1878	struct coro *coro = (struct coro *)frame->data;
		1879
		1880	if (!coro->invoke_cb)
		1881	return 1; /* loop till we have invoke */
		1882	else
		1883	{
		1884	hv_store (hv, "desc", sizeof ("desc") - 1,
		1885	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1886
		1887	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
		1888
		1889	{
		1890	dSP;
		1891	XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
		1892	PUTBACK;
		1893	}
		1894
		1895	SvREFCNT_dec (GvAV (PL_defgv));
		1896	GvAV (PL_defgv) = coro->invoke_av;
		1897	coro->invoke_av = 0;
		1898
		1899	return 0;
		1900	}
		1901	}
		1902
		1903	static void
		1904	slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1905	{
		1906	HV *hv = (HV *)SvRV (coro_current);
		1907	struct coro *coro = SvSTATE_hv ((SV *)hv);
		1908
		1909	if (expect_true (coro->saved_deffh))
		1910	{
		1911	/* subsequent iteration */
		1912	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
		1913	coro->saved_deffh = 0;
		1914
		1915	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
		1916	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1917	{
		1918	coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
		1919	coro->invoke_av = newAV ();
		1920
		1921	frame->prepare = prepare_nop;
		1922	}
		1923	else
		1924	{
		1925	av_clear (GvAV (PL_defgv));
		1926	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
		1927
		1928	coro->prio = 0;
		1929
		1930	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1931	api_trace (aTHX_ coro_current, 0);
		1932
		1933	frame->prepare = prepare_schedule;
		1934	av_push (av_async_pool, SvREFCNT_inc (hv));
		1935	}
		1936	}
		1937	else
		1938	{
		1939	/* first iteration, simply fall through */
		1940	frame->prepare = prepare_nop;
		1941	}
		1942
		1943	frame->check = slf_check_pool_handler;
		1944	frame->data = (void *)coro;
		1945	}
		1946
1746	/*****************************************************************************/	1947	/*****************************************************************************/
1747	/* rouse callback */	1948	/* rouse callback */
1748		1949
1749	#define CORO_MAGIC_type_rouse PERL_MAGIC_ext	1950	#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
1750		1951
…		…
1755	SV *data = (SV *)GENSUB_ARG;	1956	SV *data = (SV *)GENSUB_ARG;
1756		1957
1757	if (SvTYPE (SvRV (data)) != SVt_PVAV)	1958	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1758	{	1959	{
1759	/* first call, set args */	1960	/* first call, set args */
1760	int i;
1761	AV *av = newAV ();	1961	AV *av = newAV ();
1762	SV *coro = SvRV (data);	1962	SV *coro = SvRV (data);
1763		1963
1764	SvRV_set (data, (SV *)av);	1964	SvRV_set (data, (SV *)av);
1765	api_ready (aTHX_ coro);	1965	api_ready (aTHX_ coro);
…		…
1906	static void	2106	static void
1907	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2107	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1908	{	2108	{
1909	frame->prepare = prepare_schedule;	2109	frame->prepare = prepare_schedule;
1910	frame->check = slf_check_nop;	2110	frame->check = slf_check_nop;
		2111	}
		2112
		2113	static void
		2114	slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
		2115	{
		2116	struct coro *next = (struct coro *)slf_frame.data;
		2117
		2118	SvREFCNT_inc_NN (next->hv);
		2119	prepare_schedule_to (aTHX_ ta, next);
		2120	}
		2121
		2122	static void
		2123	slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2124	{
		2125	if (!items)
		2126	croak ("Coro::schedule_to expects a coroutine argument, caught");
		2127
		2128	frame->data = (void *)SvSTATE (arg [0]);
		2129	frame->prepare = slf_prepare_schedule_to;
		2130	frame->check = slf_check_nop;
		2131	}
		2132
		2133	static void
		2134	slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2135	{
		2136	api_ready (aTHX_ SvRV (coro_current));
		2137
		2138	slf_init_schedule_to (aTHX_ frame, cv, arg, items);
1911	}	2139	}
1912		2140
1913	static void	2141	static void
1914	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2142	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1915	{	2143	{
…		…
2061	}	2289	}
2062	else	2290	else
2063	slf_argc = 0;	2291	slf_argc = 0;
2064		2292
2065	PL_op->op_ppaddr = pp_slf;	2293	PL_op->op_ppaddr = pp_slf;
2066	PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */	2294	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2067		2295
2068	PL_op = (OP *)&slf_restore;	2296	PL_op = (OP *)&slf_restore;
2069	}	2297	}
2070		2298
2071	/*****************************************************************************/	2299	/*****************************************************************************/
…		…
2154	SV **ary;	2382	SV **ary;
2155		2383
2156	/* unfortunately, building manually saves memory */	2384	/* unfortunately, building manually saves memory */
2157	Newx (ary, 2, SV *);	2385	Newx (ary, 2, SV *);
2158	AvALLOC (av) = ary;	2386	AvALLOC (av) = ary;
		2387	#if PERL_VERSION_ATLEAST (5,10,0)
2159	/*AvARRAY (av) = ary;*/	2388	AvARRAY (av) = ary;
		2389	#else
2160	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */	2390	/* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
		2391	/* -DDEBUGGING flags this as a bug, despite it perfectly working */
		2392	SvPVX ((SV *)av) = (char *)ary;
		2393	#endif
2161	AvMAX (av) = 1;	2394	AvMAX (av) = 1;
2162	AvFILLp (av) = 0;	2395	AvFILLp (av) = 0;
2163	ary [0] = newSViv (count);	2396	ary [0] = newSViv (count);
2164		2397
2165	return newRV_noinc ((SV *)av);	2398	return newRV_noinc ((SV *)av);
…		…
2294	{	2527	{
2295	if (items >= 2)	2528	if (items >= 2)
2296	{	2529	{
2297	/* callback form */	2530	/* callback form */
2298	AV *av = (AV *)SvRV (arg [0]);	2531	AV *av = (AV *)SvRV (arg [0]);
2299	CV *cb_cv = coro_sv_2cv (arg [1]);	2532	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2300		2533
2301	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2534	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2302		2535
2303	if (SvIVX (AvARRAY (av)[0]) > 0)	2536	if (SvIVX (AvARRAY (av)[0]) > 0)
2304	coro_semaphore_adjust (aTHX_ av, 0);	2537	coro_semaphore_adjust (aTHX_ av, 0);
…		…
2390	dXSARGS;	2623	dXSARGS;
2391	AV *state = (AV *)GENSUB_ARG;	2624	AV *state = (AV *)GENSUB_ARG;
2392	SV *coro = av_pop (state);	2625	SV *coro = av_pop (state);
2393	SV *data_sv = newSV (sizeof (struct io_state));	2626	SV *data_sv = newSV (sizeof (struct io_state));
2394		2627
2395	av_extend (state, items);	2628	av_extend (state, items - 1);
2396		2629
2397	sv_upgrade (data_sv, SVt_PV);	2630	sv_upgrade (data_sv, SVt_PV);
2398	SvCUR_set (data_sv, sizeof (struct io_state));	2631	SvCUR_set (data_sv, sizeof (struct io_state));
2399	SvPOK_only (data_sv);	2632	SvPOK_only (data_sv);
2400		2633
…		…
2535	XSRETURN_EMPTY;	2768	XSRETURN_EMPTY;
2536	}	2769	}
2537		2770
2538	/*****************************************************************************/	2771	/*****************************************************************************/
2539		2772
		2773	#if CORO_CLONE
		2774	# include "clone.c"
		2775	#endif
		2776
2540	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	2777	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2541		2778
2542	PROTOTYPES: DISABLE	2779	PROTOTYPES: DISABLE
2543		2780
2544	BOOT:	2781	BOOT:
…		…
2548	coro_thx = PERL_GET_CONTEXT;	2785	coro_thx = PERL_GET_CONTEXT;
2549	# endif	2786	# endif
2550	#endif	2787	#endif
2551	BOOT_PAGESIZE;	2788	BOOT_PAGESIZE;
2552		2789
		2790	cctx_current = cctx_new_empty ();
		2791
2553	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);	2792	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2554	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);	2793	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2555		2794
2556	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;	2795	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;	2796	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
…		…
2576		2815
2577	{	2816	{
2578	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));	2817	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2579		2818
2580	if (!PL_custom_op_names) PL_custom_op_names = newHV ();	2819	if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2581	hv_store_ent (PL_custom_op_names, slf,	2820	hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2582	newSVpv ("coro_slf", 0), 0);
2583		2821
2584	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();	2822	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2585	hv_store_ent (PL_custom_op_descs, slf,	2823	hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2586	newSVpv ("coro schedule like function", 0), 0);
2587	}	2824	}
2588		2825
2589	coroapi.ver = CORO_API_VERSION;	2826	coroapi.ver = CORO_API_VERSION;
2590	coroapi.rev = CORO_API_REVISION;	2827	coroapi.rev = CORO_API_REVISION;
2591		2828
…		…
2610	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2847	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
2611	}	2848	}
2612		2849
2613	SV *	2850	SV *
2614	new (char *klass, ...)	2851	new (char *klass, ...)
		2852	ALIAS:
		2853	Coro::new = 1
2615	CODE:	2854	CODE:
2616	{	2855	{
2617	struct coro *coro;	2856	struct coro *coro;
2618	MAGIC *mg;	2857	MAGIC *mg;
2619	HV *hv;	2858	HV *hv;
2620	CV *cb;	2859	CV *cb;
2621	int i;	2860	int i;
2622		2861
2623	if (items > 1)	2862	if (items > 1)
2624	{	2863	{
2625	cb = coro_sv_2cv (ST (1));	2864	cb = coro_sv_2cv (aTHX_ ST (1));
2626		2865
		2866	if (!ix)
		2867	{
2627	if (CvISXSUB (cb))	2868	if (CvISXSUB (cb))
2628	croak ("Coro::State doesn't support XS functions as coroutine start, caught");	2869	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2629		2870
2630	if (!CvROOT (cb))	2871	if (!CvROOT (cb))
2631	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");	2872	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		2873	}
2632	}	2874	}
2633		2875
2634	Newz (0, coro, 1, struct coro);	2876	Newz (0, coro, 1, struct coro);
2635	coro->args = newAV ();	2877	coro->args = newAV ();
2636	coro->flags = CF_NEW;	2878	coro->flags = CF_NEW;
…		…
2644	mg->mg_flags |= MGf_DUP;	2886	mg->mg_flags |= MGf_DUP;
2645	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	2887	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2646		2888
2647	if (items > 1)	2889	if (items > 1)
2648	{	2890	{
2649	coro->startcv = SvREFCNT_inc_NN (cb);
2650
2651	av_extend (coro->args, items - 1);	2891	av_extend (coro->args, items - 1 + ix - 1);
		2892
		2893	if (ix)
		2894	{
2652	av_push (coro->args, SvREFCNT_inc (cb));	2895	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		2896	cb = cv_coro_run;
		2897	}
		2898
		2899	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		2900
2653	for (i = 2; i < items; i++)	2901	for (i = 2; i < items; i++)
2654	av_push (coro->args, newSVsv (ST (i)));	2902	av_push (coro->args, newSVsv (ST (i)));
2655	}	2903	}
2656	}	2904	}
2657	OUTPUT:	2905	OUTPUT:
…		…
2673	void	2921	void
2674	_exit (int code)	2922	_exit (int code)
2675	PROTOTYPE: $	2923	PROTOTYPE: $
2676	CODE:	2924	CODE:
2677	_exit (code);	2925	_exit (code);
		2926
		2927	SV *
		2928	clone (Coro::State coro)
		2929	CODE:
		2930	{
		2931	#if CORO_CLONE
		2932	struct coro *ncoro = coro_clone (aTHX_ coro);
		2933	MAGIC *mg;
		2934	/* TODO: too much duplication */
		2935	ncoro->hv = newHV ();
		2936	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
		2937	mg->mg_flags |= MGf_DUP;
		2938	RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
		2939	#else
		2940	croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
		2941	#endif
		2942	}
		2943	OUTPUT:
		2944	RETVAL
2678		2945
2679	int	2946	int
2680	cctx_stacksize (int new_stacksize = 0)	2947	cctx_stacksize (int new_stacksize = 0)
2681	PROTOTYPE: ;$	2948	PROTOTYPE: ;$
2682	CODE:	2949	CODE:
…		…
2803		3070
2804	SV *	3071	SV *
2805	has_cctx (Coro::State coro)	3072	has_cctx (Coro::State coro)
2806	PROTOTYPE: $	3073	PROTOTYPE: $
2807	CODE:	3074	CODE:
2808	RETVAL = boolSV (!!coro->cctx);	3075	/* maybe manage the running flag differently */
		3076	RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2809	OUTPUT:	3077	OUTPUT:
2810	RETVAL	3078	RETVAL
2811		3079
2812	int	3080	int
2813	is_traced (Coro::State coro)	3081	is_traced (Coro::State coro)
…		…
2833		3101
2834	void	3102	void
2835	force_cctx ()	3103	force_cctx ()
2836	PROTOTYPE:	3104	PROTOTYPE:
2837	CODE:	3105	CODE:
2838	SvSTATE_current->cctx->idle_sp = 0;	3106	cctx_current->idle_sp = 0;
2839		3107
2840	void	3108	void
2841	swap_defsv (Coro::State self)	3109	swap_defsv (Coro::State self)
2842	PROTOTYPE: $	3110	PROTOTYPE: $
2843	ALIAS:	3111	ALIAS:
…		…
2858		3126
2859	BOOT:	3127	BOOT:
2860	{	3128	{
2861	int i;	3129	int i;
2862		3130
2863	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2864	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3131	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2865	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3132	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2866		3133	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
		3134	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2867	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);	3135	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2868	SvREADONLY_on (coro_current);	3136	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		3137	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
		3138	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3139	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
		3140
		3141	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
		3142	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
		3143	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
		3144	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2869		3145
2870	coro_stash = gv_stashpv ("Coro", TRUE);	3146	coro_stash = gv_stashpv ("Coro", TRUE);
2871		3147
2872	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3148	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
2873	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3149	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
…		…
2881		3157
2882	{	3158	{
2883	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3159	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2884		3160
2885	coroapi.schedule = api_schedule;	3161	coroapi.schedule = api_schedule;
		3162	coroapi.schedule_to = api_schedule_to;
2886	coroapi.cede = api_cede;	3163	coroapi.cede = api_cede;
2887	coroapi.cede_notself = api_cede_notself;	3164	coroapi.cede_notself = api_cede_notself;
2888	coroapi.ready = api_ready;	3165	coroapi.ready = api_ready;
2889	coroapi.is_ready = api_is_ready;	3166	coroapi.is_ready = api_is_ready;
2890	coroapi.nready = coro_nready;	3167	coroapi.nready = coro_nready;
…		…
2895	SvREADONLY_on (sv);	3172	SvREADONLY_on (sv);
2896	}	3173	}
2897	}	3174	}
2898		3175
2899	void	3176	void
		3177	terminate (...)
		3178	CODE:
		3179	CORO_EXECUTE_SLF_XS (slf_init_terminate);
		3180
		3181	void
2900	schedule (...)	3182	schedule (...)
2901	CODE:	3183	CODE:
2902	CORO_EXECUTE_SLF_XS (slf_init_schedule);	3184	CORO_EXECUTE_SLF_XS (slf_init_schedule);
		3185
		3186	void
		3187	schedule_to (...)
		3188	CODE:
		3189	CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
		3190
		3191	void
		3192	cede_to (...)
		3193	CODE:
		3194	CORO_EXECUTE_SLF_XS (slf_init_cede_to);
2903		3195
2904	void	3196	void
2905	cede (...)	3197	cede (...)
2906	CODE:	3198	CODE:
2907	CORO_EXECUTE_SLF_XS (slf_init_cede);	3199	CORO_EXECUTE_SLF_XS (slf_init_cede);
2908		3200
2909	void	3201	void
2910	cede_notself (...)	3202	cede_notself (...)
2911	CODE:	3203	CODE:
2912	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3204	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
		3205
		3206	void
		3207	_cancel (Coro::State self)
		3208	CODE:
		3209	coro_state_destroy (aTHX_ self);
		3210	coro_call_on_destroy (aTHX_ self);
2913		3211
2914	void	3212	void
2915	_set_current (SV *current)	3213	_set_current (SV *current)
2916	PROTOTYPE: $	3214	PROTOTYPE: $
2917	CODE:	3215	CODE:
…		…
2962	CODE:	3260	CODE:
2963	RETVAL = coro_nready;	3261	RETVAL = coro_nready;
2964	OUTPUT:	3262	OUTPUT:
2965	RETVAL	3263	RETVAL
2966		3264
2967	# for async_pool speedup
2968	void	3265	void
2969	_pool_1 (SV *cb)	3266	_pool_handler (...)
2970	CODE:	3267	CODE:
2971	{	3268	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
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		3269
2979	if (!invoke)	3270	void
		3271	async_pool (SV *cv, ...)
		3272	PROTOTYPE: &@
		3273	PPCODE:
		3274	{
		3275	HV *hv = (HV *)av_pop (av_async_pool);
		3276	AV *av = newAV ();
		3277	SV *cb = ST (0);
		3278	int i;
		3279
		3280	av_extend (av, items - 2);
		3281	for (i = 1; i < items; ++i)
		3282	av_push (av, SvREFCNT_inc_NN (ST (i)));
		3283
		3284	if ((SV *)hv == &PL_sv_undef)
2980	{	3285	{
2981	SV *old = PL_diehook;	3286	PUSHMARK (SP);
2982	PL_diehook = 0;	3287	EXTEND (SP, 2);
2983	SvREFCNT_dec (old);	3288	PUSHs (sv_Coro);
2984	croak ("\3async_pool terminate\2\n");	3289	PUSHs ((SV *)cv_pool_handler);
		3290	PUTBACK;
		3291	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
		3292	SPAGAIN;
		3293
		3294	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
2985	}	3295	}
2986		3296
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	{	3297	{
3000	av_fill (defav, len - 1);	3298	struct coro *coro = SvSTATE_hv (hv);
3001	for (i = 0; i < len; ++i)	3299
3002	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));	3300	assert (!coro->invoke_cb);
		3301	assert (!coro->invoke_av);
		3302	coro->invoke_cb = SvREFCNT_inc (cb);
		3303	coro->invoke_av = av;
3003	}	3304	}
3004	}
3005		3305
3006	void	3306	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		3307
3013	sv_setsv (cb, &PL_sv_undef);	3308	if (GIMME_V != G_VOID)
3014		3309	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3015	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;	3310	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);	3311	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	}	3312	}
3038		3313
3039	SV *	3314	SV *
3040	rouse_cb ()	3315	rouse_cb ()
3041	PROTOTYPE:	3316	PROTOTYPE:
…		…
3215		3490
3216	void	3491	void
3217	_register (char *target, char *proto, SV *req)	3492	_register (char *target, char *proto, SV *req)
3218	CODE:	3493	CODE:
3219	{	3494	{
3220	CV *req_cv = coro_sv_2cv (req);	3495	CV *req_cv = coro_sv_2cv (aTHX_ req);
3221	/* newXSproto doesn't return the CV on 5.8 */	3496	/* newXSproto doesn't return the CV on 5.8 */
3222	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3497	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3223	sv_setpv ((SV *)slf_cv, proto);	3498	sv_setpv ((SV *)slf_cv, proto);
3224	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3499	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3225	}	3500	}

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