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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.309 by root, Wed Nov 19 15:29:57 2008 UTC vs.
Revision 1.340 by root, Mon Dec 15 00:30:40 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
…		…
165	static size_t cctx_stacksize = CORO_STACKSIZE;	171	static size_t cctx_stacksize = CORO_STACKSIZE;
166	static struct CoroAPI coroapi;	172	static struct CoroAPI coroapi;
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 CV *coro_run_cv;
171	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 */
		177
		178	static AV *av_destroy; /* destruction queue */
		179	static SV *sv_manager; /* the manager coro */
		180	static SV *sv_idle; /* $Coro::idle */
172		181
173	static GV *irsgv; /* $/ */	182	static GV *irsgv; /* $/ */
174	static GV *stdoutgv; /* *STDOUT */	183	static GV *stdoutgv; /* *STDOUT */
175	static SV *rv_diehook;	184	static SV *rv_diehook;
176	static SV *rv_warnhook;	185	static SV *rv_warnhook;
177	static HV *hv_sig; /* %SIG */	186	static HV *hv_sig; /* %SIG */
178		187
179	/* async_pool helper stuff */	188	/* async_pool helper stuff */
180	static SV *sv_pool_rss;	189	static SV *sv_pool_rss;
181	static SV *sv_pool_size;	190	static SV *sv_pool_size;
		191	static SV *sv_async_pool_idle; /* description string */
182	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;
183		196
184	/* Coro::AnyEvent */	197	/* Coro::AnyEvent */
185	static SV *sv_activity;	198	static SV *sv_activity;
186		199
187	static struct coro_cctx *cctx_first;	200	static struct coro_cctx *cctx_first;
…		…
216	int valgrind_id;	229	int valgrind_id;
217	#endif	230	#endif
218	unsigned char flags;	231	unsigned char flags;
219	} coro_cctx;	232	} coro_cctx;
220		233
		234	coro_cctx *cctx_current; /* the currently running cctx */
		235
		236	/*****************************************************************************/
		237
221	enum {	238	enum {
222	CF_RUNNING = 0x0001, /* coroutine is running */	239	CF_RUNNING = 0x0001, /* coroutine is running */
223	CF_READY = 0x0002, /* coroutine is ready */	240	CF_READY = 0x0002, /* coroutine is ready */
224	CF_NEW = 0x0004, /* has never been switched to */	241	CF_NEW = 0x0004, /* has never been switched to */
225	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	242	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
…		…
230	{	247	{
231	SV *defsv;	248	SV *defsv;
232	AV *defav;	249	AV *defav;
233	SV *errsv;	250	SV *errsv;
234	SV *irsgv;	251	SV *irsgv;
		252	HV *hinthv;
235	#define VAR(name,type) type name;	253	#define VAR(name,type) type name;
236	# include "state.h"	254	# include "state.h"
237	#undef VAR	255	#undef VAR
238	} perl_slots;	256	} perl_slots;
239		257
…		…
264	SV *except; /* exception to be thrown */	282	SV *except; /* exception to be thrown */
265	SV *rouse_cb;	283	SV *rouse_cb;
266		284
267	/* async_pool */	285	/* async_pool */
268	SV *saved_deffh;	286	SV *saved_deffh;
		287	SV *invoke_cb;
		288	AV *invoke_av;
		289
		290	/* on_enter/on_leave */
		291	AV *on_enter;
		292	AV *on_leave;
269		293
270	/* linked list */	294	/* linked list */
271	struct coro *next, *prev;	295	struct coro *next, *prev;
272	};	296	};
273		297
…		…
290		314
291	/* for Coro.pm */	315	/* for Coro.pm */
292	static SV *coro_current;	316	static SV *coro_current;
293	static SV *coro_readyhook;	317	static SV *coro_readyhook;
294	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	318	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
		319	static CV *cv_coro_run, *cv_coro_terminate;
295	static struct coro *coro_first;	320	static struct coro *coro_first;
296	#define coro_nready coroapi.nready	321	#define coro_nready coroapi.nready
297		322
298	/** lowlevel stuff **********************************************************/	323	/** lowlevel stuff **********************************************************/
299		324
…		…
327	return get_hv (name, create);	352	return get_hv (name, create);
328	}	353	}
329		354
330	/* may croak */	355	/* may croak */
331	INLINE CV *	356	INLINE CV *
332	coro_sv_2cv (SV *sv)	357	coro_sv_2cv (pTHX_ SV *sv)
333	{	358	{
334	HV *st;	359	HV *st;
335	GV *gvp;	360	GV *gvp;
336	return sv_2cv (sv, &st, &gvp, 0);	361	CV *cv = sv_2cv (sv, &st, &gvp, 0);
		362
		363	if (!cv)
		364	croak ("code reference expected");
		365
		366	return cv;
337	}	367	}
		368
		369	/*****************************************************************************/
		370	/* magic glue */
		371
		372	#define CORO_MAGIC_type_cv 26
		373	#define CORO_MAGIC_type_state PERL_MAGIC_ext
		374
		375	#define CORO_MAGIC_NN(sv, type) \
		376	(expect_true (SvMAGIC (sv)->mg_type == type) \
		377	? SvMAGIC (sv) \
		378	: mg_find (sv, type))
		379
		380	#define CORO_MAGIC(sv, type) \
		381	(expect_true (SvMAGIC (sv)) \
		382	? CORO_MAGIC_NN (sv, type) \
		383	: 0)
		384
		385	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		386	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
		387
		388	INLINE struct coro *
		389	SvSTATE_ (pTHX_ SV *coro)
		390	{
		391	HV *stash;
		392	MAGIC *mg;
		393
		394	if (SvROK (coro))
		395	coro = SvRV (coro);
		396
		397	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		398	croak ("Coro::State object required");
		399
		400	stash = SvSTASH (coro);
		401	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		402	{
		403	/* very slow, but rare, check */
		404	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		405	croak ("Coro::State object required");
		406	}
		407
		408	mg = CORO_MAGIC_state (coro);
		409	return (struct coro *)mg->mg_ptr;
		410	}
		411
		412	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		413
		414	/* faster than SvSTATE, but expects a coroutine hv */
		415	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
		416	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
		417
		418	/*****************************************************************************/
		419	/* padlist management and caching */
338		420
339	static AV *	421	static AV *
340	coro_clone_padlist (pTHX_ CV *cv)	422	coro_derive_padlist (pTHX_ CV *cv)
341	{	423	{
342	AV *padlist = CvPADLIST (cv);	424	AV *padlist = CvPADLIST (cv);
343	AV *newpadlist, *newpad;	425	AV *newpadlist, *newpad;
344		426
345	newpadlist = newAV ();	427	newpadlist = newAV ();
…		…
350	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	432	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
351	#endif	433	#endif
352	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	434	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
353	--AvFILLp (padlist);	435	--AvFILLp (padlist);
354		436
355	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));	437	av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
356	av_store (newpadlist, 1, (SV *)newpad);	438	av_store (newpadlist, 1, (SV *)newpad);
357		439
358	return newpadlist;	440	return newpadlist;
359	}	441	}
360		442
361	static void	443	static void
362	free_padlist (pTHX_ AV *padlist)	444	free_padlist (pTHX_ AV *padlist)
363	{	445	{
364	/* may be during global destruction */	446	/* may be during global destruction */
365	if (SvREFCNT (padlist))	447	if (!IN_DESTRUCT)
366	{	448	{
367	I32 i = AvFILLp (padlist);	449	I32 i = AvFILLp (padlist);
368	while (i >= 0)	450
		451	while (i > 0) /* special-case index 0 */
369	{	452	{
370	SV **svp = av_fetch (padlist, i--, FALSE);	453	/* we try to be extra-careful here */
371	if (svp)	454	AV *av = (AV *)AvARRAY (padlist)[i--];
372	{	455	I32 j = AvFILLp (av);
373	SV *sv;	456
374	while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))	457	while (j >= 0)
		458	SvREFCNT_dec (AvARRAY (av)[j--]);
		459
		460	AvFILLp (av) = -1;
375	SvREFCNT_dec (sv);	461	SvREFCNT_dec (av);
376
377	SvREFCNT_dec (*svp);
378	}
379	}	462	}
380		463
		464	SvREFCNT_dec (AvARRAY (padlist)[0]);
		465
		466	AvFILLp (padlist) = -1;
381	SvREFCNT_dec ((SV*)padlist);	467	SvREFCNT_dec ((SV*)padlist);
382	}	468	}
383	}	469	}
384		470
385	static int	471	static int
…		…
394		480
395	SvREFCNT_dec (av); /* sv_magicext increased the refcount */	481	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
396		482
397	return 0;	483	return 0;
398	}	484	}
399
400	#define CORO_MAGIC_type_cv 26
401	#define CORO_MAGIC_type_state PERL_MAGIC_ext
402		485
403	static MGVTBL coro_cv_vtbl = {	486	static MGVTBL coro_cv_vtbl = {
404	0, 0, 0, 0,	487	0, 0, 0, 0,
405	coro_cv_free	488	coro_cv_free
406	};	489	};
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		490
451	/* the next two functions merely cache the padlists */	491	/* the next two functions merely cache the padlists */
452	static void	492	static void
453	get_padlist (pTHX_ CV *cv)	493	get_padlist (pTHX_ CV *cv)
454	{	494	{
…		…
465	CV *cp = Perl_cv_clone (aTHX_ cv);	505	CV *cp = Perl_cv_clone (aTHX_ cv);
466	CvPADLIST (cv) = CvPADLIST (cp);	506	CvPADLIST (cv) = CvPADLIST (cp);
467	CvPADLIST (cp) = 0;	507	CvPADLIST (cp) = 0;
468	SvREFCNT_dec (cp);	508	SvREFCNT_dec (cp);
469	#else	509	#else
470	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	510	CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
471	#endif	511	#endif
472	}	512	}
473	}	513	}
474		514
475	static void	515	static void
…		…
482	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);	522	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
483		523
484	av = (AV *)mg->mg_obj;	524	av = (AV *)mg->mg_obj;
485		525
486	if (expect_false (AvFILLp (av) >= AvMAX (av)))	526	if (expect_false (AvFILLp (av) >= AvMAX (av)))
487	av_extend (av, AvMAX (av) + 1);	527	av_extend (av, AvFILLp (av) + 1);
488		528
489	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	529	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
490	}	530	}
491		531
492	/** load & save, init *******************************************************/	532	/** load & save, init *******************************************************/
		533
		534	static void
		535	on_enterleave_call (pTHX_ SV *cb);
493		536
494	static void	537	static void
495	load_perl (pTHX_ Coro__State c)	538	load_perl (pTHX_ Coro__State c)
496	{	539	{
497	perl_slots *slot = c->slot;	540	perl_slots *slot = c->slot;
498	c->slot = 0;	541	c->slot = 0;
499		542
500	PL_mainstack = c->mainstack;	543	PL_mainstack = c->mainstack;
501		544
502	GvSV (PL_defgv) = slot->defsv;	545	GvSV (PL_defgv) = slot->defsv;
503	GvAV (PL_defgv) = slot->defav;	546	GvAV (PL_defgv) = slot->defav;
504	GvSV (PL_errgv) = slot->errsv;	547	GvSV (PL_errgv) = slot->errsv;
505	GvSV (irsgv) = slot->irsgv;	548	GvSV (irsgv) = slot->irsgv;
		549	GvHV (PL_hintgv) = slot->hinthv;
506		550
507	#define VAR(name,type) PL_ ## name = slot->name;	551	#define VAR(name,type) PL_ ## name = slot->name;
508	# include "state.h"	552	# include "state.h"
509	#undef VAR	553	#undef VAR
510		554
…		…
524	PUTBACK;	568	PUTBACK;
525	}	569	}
526		570
527	slf_frame = c->slf_frame;	571	slf_frame = c->slf_frame;
528	CORO_THROW = c->except;	572	CORO_THROW = c->except;
		573
		574	if (expect_false (c->on_enter))
		575	{
		576	int i;
		577
		578	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
		579	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
		580	}
529	}	581	}
530		582
531	static void	583	static void
532	save_perl (pTHX_ Coro__State c)	584	save_perl (pTHX_ Coro__State c)
533	{	585	{
		586	if (expect_false (c->on_leave))
		587	{
		588	int i;
		589
		590	for (i = AvFILLp (c->on_leave); i >= 0; --i)
		591	on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
		592	}
		593
534	c->except = CORO_THROW;	594	c->except = CORO_THROW;
535	c->slf_frame = slf_frame;	595	c->slf_frame = slf_frame;
536		596
537	{	597	{
538	dSP;	598	dSP;
…		…
596	c->mainstack = PL_mainstack;	656	c->mainstack = PL_mainstack;
597		657
598	{	658	{
599	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	659	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
600		660
601	slot->defav = GvAV (PL_defgv);	661	slot->defav = GvAV (PL_defgv);
602	slot->defsv = DEFSV;	662	slot->defsv = DEFSV;
603	slot->errsv = ERRSV;	663	slot->errsv = ERRSV;
604	slot->irsgv = GvSV (irsgv);	664	slot->irsgv = GvSV (irsgv);
		665	slot->hinthv = GvHV (PL_hintgv);
605		666
606	#define VAR(name,type) slot->name = PL_ ## name;	667	#define VAR(name,type) slot->name = PL_ ## name;
607	# include "state.h"	668	# include "state.h"
608	#undef VAR	669	#undef VAR
609	}	670	}
…		…
687	#if !PERL_VERSION_ATLEAST (5,10,0)	748	#if !PERL_VERSION_ATLEAST (5,10,0)
688	Safefree (PL_retstack);	749	Safefree (PL_retstack);
689	#endif	750	#endif
690	}	751	}
691		752
		753	#define CORO_RSS \
		754	rss += sizeof (SYM (curstackinfo)); \
		755	rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
		756	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
		757	rss += SYM (tmps_max) * sizeof (SV *); \
		758	rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
		759	rss += SYM (scopestack_max) * sizeof (I32); \
		760	rss += SYM (savestack_max) * sizeof (ANY);
		761
692	static size_t	762	static size_t
693	coro_rss (pTHX_ struct coro *coro)	763	coro_rss (pTHX_ struct coro *coro)
694	{	764	{
695	size_t rss = sizeof (*coro);	765	size_t rss = sizeof (*coro);
696		766
697	if (coro->mainstack)	767	if (coro->mainstack)
698	{	768	{
699	perl_slots tmp_slot;
700	perl_slots *slot;
701
702	if (coro->flags & CF_RUNNING)	769	if (coro->flags & CF_RUNNING)
703	{	770	{
704	slot = &tmp_slot;	771	#define SYM(sym) PL_ ## sym
705		772	CORO_RSS;
706	#define VAR(name,type) slot->name = PL_ ## name;
707	# include "state.h"
708	#undef VAR	773	#undef SYM
709	}	774	}
710	else	775	else
711	slot = coro->slot;
712
713	if (slot)
714	{	776	{
715	rss += sizeof (slot->curstackinfo);	777	#define SYM(sym) coro->slot->sym
716	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	778	CORO_RSS;
717	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	779	#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	}	780	}
727	}	781	}
728		782
729	return rss;	783	return rss;
730	}	784	}
…		…
743	#endif	797	#endif
744		798
745	/*	799	/*
746	* This overrides the default magic get method of %SIG elements.	800	* 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	801	* 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	802	* and instead of trying to save and restore the hash elements, we just provide
749	* readback here.	803	* 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	*/	804	*/
754	static int	805	static int
755	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	806	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
756	{	807	{
757	const char *s = MgPV_nolen_const (mg);	808	const char *s = MgPV_nolen_const (mg);
…		…
810	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	861	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
811		862
812	if (svp)	863	if (svp)
813	{	864	{
814	SV *old = *svp;	865	SV *old = *svp;
815	*svp = newSVsv (sv);	866	*svp = SvOK (sv) ? newSVsv (sv) : 0;
816	SvREFCNT_dec (old);	867	SvREFCNT_dec (old);
817	return 0;	868	return 0;
818	}	869	}
819	}	870	}
820		871
…		…
830		881
831	static int	882	static int
832	slf_check_nop (pTHX_ struct CoroSLF *frame)	883	slf_check_nop (pTHX_ struct CoroSLF *frame)
833	{	884	{
834	return 0;	885	return 0;
		886	}
		887
		888	static int
		889	slf_check_repeat (pTHX_ struct CoroSLF *frame)
		890	{
		891	return 1;
835	}	892	}
836		893
837	static UNOP coro_setup_op;	894	static UNOP coro_setup_op;
838		895
839	static void NOINLINE /* noinline to keep it out of the transfer fast path */	896	static void NOINLINE /* noinline to keep it out of the transfer fast path */
…		…
846		903
847	PL_runops = RUNOPS_DEFAULT;	904	PL_runops = RUNOPS_DEFAULT;
848	PL_curcop = &PL_compiling;	905	PL_curcop = &PL_compiling;
849	PL_in_eval = EVAL_NULL;	906	PL_in_eval = EVAL_NULL;
850	PL_comppad = 0;	907	PL_comppad = 0;
		908	PL_comppad_name = 0;
		909	PL_comppad_name_fill = 0;
		910	PL_comppad_name_floor = 0;
851	PL_curpm = 0;	911	PL_curpm = 0;
852	PL_curpad = 0;	912	PL_curpad = 0;
853	PL_localizing = 0;	913	PL_localizing = 0;
854	PL_dirty = 0;	914	PL_dirty = 0;
855	PL_restartop = 0;	915	PL_restartop = 0;
856	#if PERL_VERSION_ATLEAST (5,10,0)	916	#if PERL_VERSION_ATLEAST (5,10,0)
857	PL_parser = 0;	917	PL_parser = 0;
858	#endif	918	#endif
		919	PL_hints = 0;
859		920
860	/* recreate the die/warn hooks */	921	/* recreate the die/warn hooks */
861	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );	922	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);	923	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
863		924
864	GvSV (PL_defgv) = newSV (0);	925	GvSV (PL_defgv) = newSV (0);
865	GvAV (PL_defgv) = coro->args; coro->args = 0;	926	GvAV (PL_defgv) = coro->args; coro->args = 0;
866	GvSV (PL_errgv) = newSV (0);	927	GvSV (PL_errgv) = newSV (0);
867	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	928	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		929	GvHV (PL_hintgv) = 0;
868	PL_rs = newSVsv (GvSV (irsgv));	930	PL_rs = newSVsv (GvSV (irsgv));
869	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	931	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
870		932
871	{	933	{
872	dSP;	934	dSP;
…		…
890	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	952	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 */	953	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
892		954
893	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	955	/* 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;	956	coro_setup_op.op_next = PL_op;
895	coro_setup_op.op_type = OP_CUSTOM;	957	coro_setup_op.op_type = OP_ENTERSUB;
896	coro_setup_op.op_ppaddr = pp_slf;	958	coro_setup_op.op_ppaddr = pp_slf;
897	/* no flags etc. required, as an init function won't be called */	959	/* no flags etc. required, as an init function won't be called */
898		960
899	PL_op = (OP *)&coro_setup_op;	961	PL_op = (OP *)&coro_setup_op;
900		962
901	/* copy throw, in case it was set before coro_setup */	963	/* copy throw, in case it was set before coro_setup */
902	CORO_THROW = coro->except;	964	CORO_THROW = coro->except;
903	}	965	}
904		966
905	static void	967	static void
906	coro_destruct (pTHX_ struct coro *coro)	968	coro_unwind_stacks (pTHX)
907	{	969	{
908	if (!IN_DESTRUCT)	970	if (!IN_DESTRUCT)
909	{	971	{
910	/* restore all saved variables and stuff */	972	/* restore all saved variables and stuff */
911	LEAVE_SCOPE (0);	973	LEAVE_SCOPE (0);
…		…
919	POPSTACK_TO (PL_mainstack);	981	POPSTACK_TO (PL_mainstack);
920		982
921	/* unwind main stack */	983	/* unwind main stack */
922	dounwind (-1);	984	dounwind (-1);
923	}	985	}
		986	}
		987
		988	static void
		989	coro_destruct_perl (pTHX_ struct coro *coro)
		990	{
		991	coro_unwind_stacks (aTHX);
924		992
925	SvREFCNT_dec (GvSV (PL_defgv));	993	SvREFCNT_dec (GvSV (PL_defgv));
926	SvREFCNT_dec (GvAV (PL_defgv));	994	SvREFCNT_dec (GvAV (PL_defgv));
927	SvREFCNT_dec (GvSV (PL_errgv));	995	SvREFCNT_dec (GvSV (PL_errgv));
928	SvREFCNT_dec (PL_defoutgv);	996	SvREFCNT_dec (PL_defoutgv);
929	SvREFCNT_dec (PL_rs);	997	SvREFCNT_dec (PL_rs);
930	SvREFCNT_dec (GvSV (irsgv));	998	SvREFCNT_dec (GvSV (irsgv));
		999	SvREFCNT_dec (GvHV (PL_hintgv));
931		1000
932	SvREFCNT_dec (PL_diehook);	1001	SvREFCNT_dec (PL_diehook);
933	SvREFCNT_dec (PL_warnhook);	1002	SvREFCNT_dec (PL_warnhook);
934		1003
935	SvREFCNT_dec (coro->saved_deffh);	1004	SvREFCNT_dec (coro->saved_deffh);
936	SvREFCNT_dec (coro->rouse_cb);	1005	SvREFCNT_dec (coro->rouse_cb);
		1006	SvREFCNT_dec (coro->invoke_cb);
		1007	SvREFCNT_dec (coro->invoke_av);
937		1008
938	coro_destruct_stacks (aTHX);	1009	coro_destruct_stacks (aTHX);
939	}	1010	}
940		1011
941	INLINE void	1012	INLINE void
…		…
951	static int	1022	static int
952	runops_trace (pTHX)	1023	runops_trace (pTHX)
953	{	1024	{
954	COP *oldcop = 0;	1025	COP *oldcop = 0;
955	int oldcxix = -2;	1026	int oldcxix = -2;
956	struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
957	coro_cctx *cctx = coro->cctx;
958		1027
959	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))	1028	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
960	{	1029	{
961	PERL_ASYNC_CHECK ();	1030	PERL_ASYNC_CHECK ();
962		1031
963	if (cctx->flags & CC_TRACE_ALL)	1032	if (cctx_current->flags & CC_TRACE_ALL)
964	{	1033	{
965	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)	1034	if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
966	{	1035	{
967	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1036	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
968	SV **bot, **top;	1037	SV **bot, **top;
969	AV *av = newAV (); /* return values */	1038	AV *av = newAV (); /* return values */
970	SV **cb;	1039	SV **cb;
…		…
1007		1076
1008	if (PL_curcop != &PL_compiling)	1077	if (PL_curcop != &PL_compiling)
1009	{	1078	{
1010	SV **cb;	1079	SV **cb;
1011		1080
1012	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)	1081	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1013	{	1082	{
1014	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1083	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1015		1084
1016	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1085	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1017	{	1086	{
1018	runops_proc_t old_runops = PL_runops;
1019	dSP;	1087	dSP;
1020	GV *gv = CvGV (cx->blk_sub.cv);	1088	GV *gv = CvGV (cx->blk_sub.cv);
1021	SV *fullname = sv_2mortal (newSV (0));	1089	SV *fullname = sv_2mortal (newSV (0));
1022		1090
1023	if (isGV (gv))	1091	if (isGV (gv))
…		…
1041	}	1109	}
1042		1110
1043	oldcxix = cxstack_ix;	1111	oldcxix = cxstack_ix;
1044	}	1112	}
1045		1113
1046	if (cctx->flags & CC_TRACE_LINE)	1114	if (cctx_current->flags & CC_TRACE_LINE)
1047	{	1115	{
1048	dSP;	1116	dSP;
1049		1117
1050	PL_runops = RUNOPS_DEFAULT;	1118	PL_runops = RUNOPS_DEFAULT;
1051	ENTER;	1119	ENTER;
…		…
1070		1138
1071	TAINT_NOT;	1139	TAINT_NOT;
1072	return 0;	1140	return 0;
1073	}	1141	}
1074		1142
1075	static struct coro_cctx *cctx_ssl_cctx;
1076	static struct CoroSLF cctx_ssl_frame;	1143	static struct CoroSLF cctx_ssl_frame;
1077		1144
1078	static void	1145	static void
1079	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)	1146	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1080	{	1147	{
1081	ta->prev = (struct coro *)cctx_ssl_cctx;
1082	ta->next = 0;	1148	ta->prev = 0;
1083	}	1149	}
1084		1150
1085	static int	1151	static int
1086	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)	1152	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1087	{	1153	{
…		…
1090	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */	1156	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1091	}	1157	}
1092		1158
1093	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */	1159	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1094	static void NOINLINE	1160	static void NOINLINE
1095	cctx_prepare (pTHX_ coro_cctx *cctx)	1161	cctx_prepare (pTHX)
1096	{	1162	{
1097	PL_top_env = &PL_start_env;	1163	PL_top_env = &PL_start_env;
1098		1164
1099	if (cctx->flags & CC_TRACE)	1165	if (cctx_current->flags & CC_TRACE)
1100	PL_runops = runops_trace;	1166	PL_runops = runops_trace;
1101		1167
1102	/* we already must be executing an SLF op, there is no other valid way	1168	/* we already must be executing an SLF op, there is no other valid way
1103	* that can lead to creation of a new cctx */	1169	* that can lead to creation of a new cctx */
1104	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",	1170	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1105	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));	1171	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1106		1172
1107	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */	1173	/* 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;	1174	cctx_ssl_frame = slf_frame;
1110		1175
1111	slf_frame.prepare = slf_prepare_set_stacklevel;	1176	slf_frame.prepare = slf_prepare_set_stacklevel;
1112	slf_frame.check = slf_check_set_stacklevel;	1177	slf_frame.check = slf_check_set_stacklevel;
1113	}	1178	}
…		…
1136	/* normally we would need to skip the entersub here */	1201	/* normally we would need to skip the entersub here */
1137	/* not doing so will re-execute it, which is exactly what we want */	1202	/* not doing so will re-execute it, which is exactly what we want */
1138	/* PL_nop = PL_nop->op_next */	1203	/* PL_nop = PL_nop->op_next */
1139		1204
1140	/* inject a fake subroutine call to cctx_init */	1205	/* inject a fake subroutine call to cctx_init */
1141	cctx_prepare (aTHX_ (coro_cctx *)arg);	1206	cctx_prepare (aTHX);
1142		1207
1143	/* cctx_run is the alternative tail of transfer() */	1208	/* cctx_run is the alternative tail of transfer() */
1144	transfer_tail (aTHX);	1209	transfer_tail (aTHX);
1145		1210
1146	/* somebody or something will hit me for both perl_run and PL_restartop */	1211	/* somebody or something will hit me for both perl_run and PL_restartop */
…		…
1154	/*	1219	/*
1155	* If perl-run returns we assume exit() was being called or the coro	1220	* 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)	1221	* 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	1222	* 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"	1223	* bootstrap-time "top" top_env, as we cannot restore the "main"
1159	* coroutine as Coro has no such concept	1224	* coroutine as Coro has no such concept.
		1225	* This actually isn't valid with the pthread backend, but OSes requiring
		1226	* that backend are too broken to do it in a standards-compliant way.
1160	*/	1227	*/
1161	PL_top_env = main_top_env;	1228	PL_top_env = main_top_env;
1162	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1229	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1163	}	1230	}
1164	}	1231	}
…		…
1241	cctx_destroy (coro_cctx *cctx)	1308	cctx_destroy (coro_cctx *cctx)
1242	{	1309	{
1243	if (!cctx)	1310	if (!cctx)
1244	return;	1311	return;
1245		1312
		1313	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
		1314
1246	--cctx_count;	1315	--cctx_count;
1247	coro_destroy (&cctx->cctx);	1316	coro_destroy (&cctx->cctx);
1248		1317
1249	/* coro_transfer creates new, empty cctx's */	1318	/* coro_transfer creates new, empty cctx's */
1250	if (cctx->sptr)	1319	if (cctx->sptr)
…		…
1313	/* TODO: throwing up here is considered harmful */	1382	/* TODO: throwing up here is considered harmful */
1314		1383
1315	if (expect_true (prev != next))	1384	if (expect_true (prev != next))
1316	{	1385	{
1317	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1386	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,");	1387	croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,");
1319		1388
1320	if (expect_false (next->flags & CF_RUNNING))	1389	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,");	1390	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1322		1391
1323	if (expect_false (next->flags & CF_DESTROYED))	1392	if (expect_false (next->flags & CF_DESTROYED))
…		…
1335	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)	1404	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1336	{	1405	{
1337	dSTACKLEVEL;	1406	dSTACKLEVEL;
1338		1407
1339	/* sometimes transfer is only called to set idle_sp */	1408	/* sometimes transfer is only called to set idle_sp */
1340	if (expect_false (!next))	1409	if (expect_false (!prev))
1341	{	1410	{
1342	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1411	cctx_current->idle_sp = STACKLEVEL;
1343	assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */	1412	assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1344	}	1413	}
1345	else if (expect_true (prev != next))	1414	else if (expect_true (prev != next))
1346	{	1415	{
1347	coro_cctx *prev__cctx;	1416	coro_cctx *cctx_prev;
1348		1417
1349	if (expect_false (prev->flags & CF_NEW))	1418	if (expect_false (prev->flags & CF_NEW))
1350	{	1419	{
1351	/* create a new empty/source context */	1420	/* create a new empty/source context */
1352	prev->cctx = cctx_new_empty ();
1353	prev->flags &= ~CF_NEW;	1421	prev->flags &= ~CF_NEW;
1354	prev->flags |= CF_RUNNING;	1422	prev->flags |= CF_RUNNING;
1355	}	1423	}
1356		1424
1357	prev->flags &= ~CF_RUNNING;	1425	prev->flags &= ~CF_RUNNING;
…		…
1368	coro_setup (aTHX_ next);	1436	coro_setup (aTHX_ next);
1369	}	1437	}
1370	else	1438	else
1371	load_perl (aTHX_ next);	1439	load_perl (aTHX_ next);
1372		1440
1373	prev__cctx = prev->cctx;
1374
1375	/* possibly untie and reuse the cctx */	1441	/* possibly untie and reuse the cctx */
1376	if (expect_true (	1442	if (expect_true (
1377	prev__cctx->idle_sp == STACKLEVEL	1443	cctx_current->idle_sp == STACKLEVEL
1378	&& !(prev__cctx->flags & CC_TRACE)	1444	&& !(cctx_current->flags & CC_TRACE)
1379	&& !force_cctx	1445	&& !force_cctx
1380	))	1446	))
1381	{	1447	{
1382	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1448	/* 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));	1449	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1384		1450
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 */	1451	/* 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 */	1452	/* without this the next cctx_get might destroy the running cctx while still in use */
1389	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1453	if (expect_false (CCTX_EXPIRED (cctx_current)))
1390	if (!next->cctx)	1454	if (expect_true (!next->cctx))
1391	next->cctx = cctx_get (aTHX);	1455	next->cctx = cctx_get (aTHX);
1392		1456
1393	cctx_put (prev__cctx);	1457	cctx_put (cctx_current);
1394	}	1458	}
		1459	else
		1460	prev->cctx = cctx_current;
1395		1461
1396	++next->usecount;	1462	++next->usecount;
1397		1463
1398	if (expect_true (!next->cctx))	1464	cctx_prev = cctx_current;
1399	next->cctx = cctx_get (aTHX);	1465	cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1400		1466
1401	if (expect_false (prev__cctx != next->cctx))	1467	next->cctx = 0;
		1468
		1469	if (expect_false (cctx_prev != cctx_current))
1402	{	1470	{
1403	prev__cctx->top_env = PL_top_env;	1471	cctx_prev->top_env = PL_top_env;
1404	PL_top_env = next->cctx->top_env;	1472	PL_top_env = cctx_current->top_env;
1405	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1473	coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1406	}	1474	}
1407		1475
1408	transfer_tail (aTHX);	1476	transfer_tail (aTHX);
1409	}	1477	}
1410	}	1478	}
…		…
1432	--coro_nready;	1500	--coro_nready;
1433	}	1501	}
1434	else	1502	else
1435	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */	1503	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1436		1504
1437	if (coro->mainstack && coro->mainstack != main_mainstack)	1505	if (coro->mainstack
		1506	&& coro->mainstack != main_mainstack
		1507	&& coro->slot
		1508	&& !PL_dirty)
1438	{	1509	{
1439	struct coro temp;	1510	struct coro *current = SvSTATE_current;
1440		1511
1441	assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));	1512	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1442		1513
1443	save_perl (aTHX_ &temp);	1514	save_perl (aTHX_ current);
1444	load_perl (aTHX_ coro);	1515	load_perl (aTHX_ coro);
1445		1516
1446	coro_destruct (aTHX_ coro);	1517	coro_destruct_perl (aTHX_ coro);
1447		1518
1448	load_perl (aTHX_ &temp);	1519	load_perl (aTHX_ current);
1449		1520
1450	coro->slot = 0;	1521	coro->slot = 0;
1451	}	1522	}
1452		1523
1453	cctx_destroy (coro->cctx);	1524	cctx_destroy (coro->cctx);
…		…
1565	{	1636	{
1566	struct coro *coro;	1637	struct coro *coro;
1567	SV *sv_hook;	1638	SV *sv_hook;
1568	void (*xs_hook)(void);	1639	void (*xs_hook)(void);
1569		1640
1570	if (SvROK (coro_sv))
1571	coro_sv = SvRV (coro_sv);
1572
1573	coro = SvSTATE (coro_sv);	1641	coro = SvSTATE (coro_sv);
1574		1642
1575	if (coro->flags & CF_READY)	1643	if (coro->flags & CF_READY)
1576	return 0;	1644	return 0;
1577		1645
…		…
1608	api_is_ready (pTHX_ SV *coro_sv)	1676	api_is_ready (pTHX_ SV *coro_sv)
1609	{	1677	{
1610	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1678	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1611	}	1679	}
1612		1680
		1681	/* expects to own a reference to next->hv */
1613	INLINE void	1682	INLINE void
1614	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1683	prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1615	{	1684	{
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);	1685	SV *prev_sv = SvRV (coro_current);
		1686
1655	ta->prev = SvSTATE_hv (prev_sv);	1687	ta->prev = SvSTATE_hv (prev_sv);
		1688	ta->next = next;
		1689
1656	TRANSFER_CHECK (*ta);	1690	TRANSFER_CHECK (*ta);
1657	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));	1691
1658	ta->next->flags &= ~CF_READY;
1659	SvRV_set (coro_current, next_sv);	1692	SvRV_set (coro_current, (SV *)next->hv);
1660		1693
1661	free_coro_mortal (aTHX);	1694	free_coro_mortal (aTHX);
1662	coro_mortal = prev_sv;	1695	coro_mortal = prev_sv;
1663	}	1696	}
1664		1697
		1698	static void
		1699	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
		1700	{
		1701	for (;;)
		1702	{
		1703	SV *next_sv = coro_deq (aTHX);
		1704
		1705	if (expect_true (next_sv))
		1706	{
		1707	struct coro *next = SvSTATE_hv (next_sv);
		1708
		1709	/* cannot transfer to destroyed coros, skip and look for next */
		1710	if (expect_false (next->flags & CF_DESTROYED))
		1711	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */
		1712	else
		1713	{
		1714	next->flags &= ~CF_READY;
		1715	--coro_nready;
		1716
		1717	prepare_schedule_to (aTHX_ ta, next);
		1718	break;
		1719	}
		1720	}
		1721	else
		1722	{
		1723	/* nothing to schedule: call the idle handler */
		1724	if (SvROK (sv_idle)
		1725	&& SvOBJECT (SvRV (sv_idle)))
		1726	{
		1727	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
		1728	api_ready (aTHX_ SvRV (sv_idle));
		1729	--coro_nready;
		1730	}
		1731	else
		1732	{
		1733	dSP;
		1734
		1735	ENTER;
		1736	SAVETMPS;
		1737
		1738	PUSHMARK (SP);
		1739	PUTBACK;
		1740	call_sv (sv_idle, G_VOID | G_DISCARD);
		1741
		1742	FREETMPS;
		1743	LEAVE;
		1744	}
		1745	}
		1746	}
		1747	}
		1748
1665	INLINE void	1749	INLINE void
1666	prepare_cede (pTHX_ struct coro_transfer_args *ta)	1750	prepare_cede (pTHX_ struct coro_transfer_args *ta)
1667	{	1751	{
1668	api_ready (aTHX_ coro_current);	1752	api_ready (aTHX_ coro_current);
1669	prepare_schedule (aTHX_ ta);	1753	prepare_schedule (aTHX_ ta);
…		…
1688	{	1772	{
1689	struct coro_transfer_args ta;	1773	struct coro_transfer_args ta;
1690		1774
1691	prepare_schedule (aTHX_ &ta);	1775	prepare_schedule (aTHX_ &ta);
1692	TRANSFER (ta, 1);	1776	TRANSFER (ta, 1);
		1777	}
		1778
		1779	static void
		1780	api_schedule_to (pTHX_ SV *coro_sv)
		1781	{
		1782	struct coro_transfer_args ta;
		1783	struct coro *next = SvSTATE (coro_sv);
		1784
		1785	SvREFCNT_inc_NN (coro_sv);
		1786	prepare_schedule_to (aTHX_ &ta, next);
1693	}	1787	}
1694		1788
1695	static int	1789	static int
1696	api_cede (pTHX)	1790	api_cede (pTHX)
1697	{	1791	{
…		…
1726	static void	1820	static void
1727	api_trace (pTHX_ SV *coro_sv, int flags)	1821	api_trace (pTHX_ SV *coro_sv, int flags)
1728	{	1822	{
1729	struct coro *coro = SvSTATE (coro_sv);	1823	struct coro *coro = SvSTATE (coro_sv);
1730		1824
		1825	if (coro->flags & CF_RUNNING)
		1826	croak ("cannot enable tracing on a running coroutine, caught");
		1827
1731	if (flags & CC_TRACE)	1828	if (flags & CC_TRACE)
1732	{	1829	{
1733	if (!coro->cctx)	1830	if (!coro->cctx)
1734	coro->cctx = cctx_new_run ();	1831	coro->cctx = cctx_new_run ();
1735	else if (!(coro->cctx->flags & CC_TRACE))	1832	else if (!(coro->cctx->flags & CC_TRACE))
1736	croak ("cannot enable tracing on coroutine with custom stack,");	1833	croak ("cannot enable tracing on coroutine with custom stack, caught");
1737		1834
1738	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));	1835	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1739	}	1836	}
1740	else if (coro->cctx && coro->cctx->flags & CC_TRACE)	1837	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1741	{	1838	{
…		…
1746	else	1843	else
1747	coro->slot->runops = RUNOPS_DEFAULT;	1844	coro->slot->runops = RUNOPS_DEFAULT;
1748	}	1845	}
1749	}	1846	}
1750		1847
		1848	static void
		1849	coro_call_on_destroy (pTHX_ struct coro *coro)
		1850	{
		1851	SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
		1852	SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
		1853
		1854	if (on_destroyp)
		1855	{
		1856	AV *on_destroy = (AV *)SvRV (*on_destroyp);
		1857
		1858	while (AvFILLp (on_destroy) >= 0)
		1859	{
		1860	dSP; /* don't disturb outer sp */
		1861	SV *cb = av_pop (on_destroy);
		1862
		1863	PUSHMARK (SP);
		1864
		1865	if (statusp)
		1866	{
		1867	int i;
		1868	AV *status = (AV *)SvRV (*statusp);
		1869	EXTEND (SP, AvFILLp (status) + 1);
		1870
		1871	for (i = 0; i <= AvFILLp (status); ++i)
		1872	PUSHs (AvARRAY (status)[i]);
		1873	}
		1874
		1875	PUTBACK;
		1876	call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
		1877	}
		1878	}
		1879	}
		1880
		1881	static void
		1882	slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1883	{
		1884	int i;
		1885	HV *hv = (HV *)SvRV (coro_current);
		1886	AV *av = newAV ();
		1887
		1888	av_extend (av, items - 1);
		1889	for (i = 0; i < items; ++i)
		1890	av_push (av, SvREFCNT_inc_NN (arg [i]));
		1891
		1892	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
		1893
		1894	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
		1895	api_ready (aTHX_ sv_manager);
		1896
		1897	frame->prepare = prepare_schedule;
		1898	frame->check = slf_check_repeat;
		1899
		1900	/* as a minor optimisation, we could unwind all stacks here */
		1901	/* but that puts extra pressure on pp_slf, and is not worth much */
		1902	/*coro_unwind_stacks (aTHX);*/
		1903	}
		1904
		1905	/*****************************************************************************/
		1906	/* async pool handler */
		1907
		1908	static int
		1909	slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
		1910	{
		1911	HV *hv = (HV *)SvRV (coro_current);
		1912	struct coro *coro = (struct coro *)frame->data;
		1913
		1914	if (!coro->invoke_cb)
		1915	return 1; /* loop till we have invoke */
		1916	else
		1917	{
		1918	hv_store (hv, "desc", sizeof ("desc") - 1,
		1919	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1920
		1921	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
		1922
		1923	{
		1924	dSP;
		1925	XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
		1926	PUTBACK;
		1927	}
		1928
		1929	SvREFCNT_dec (GvAV (PL_defgv));
		1930	GvAV (PL_defgv) = coro->invoke_av;
		1931	coro->invoke_av = 0;
		1932
		1933	return 0;
		1934	}
		1935	}
		1936
		1937	static void
		1938	slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1939	{
		1940	HV *hv = (HV *)SvRV (coro_current);
		1941	struct coro *coro = SvSTATE_hv ((SV *)hv);
		1942
		1943	if (expect_true (coro->saved_deffh))
		1944	{
		1945	/* subsequent iteration */
		1946	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
		1947	coro->saved_deffh = 0;
		1948
		1949	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
		1950	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1951	{
		1952	coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
		1953	coro->invoke_av = newAV ();
		1954
		1955	frame->prepare = prepare_nop;
		1956	}
		1957	else
		1958	{
		1959	av_clear (GvAV (PL_defgv));
		1960	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
		1961
		1962	coro->prio = 0;
		1963
		1964	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1965	api_trace (aTHX_ coro_current, 0);
		1966
		1967	frame->prepare = prepare_schedule;
		1968	av_push (av_async_pool, SvREFCNT_inc (hv));
		1969	}
		1970	}
		1971	else
		1972	{
		1973	/* first iteration, simply fall through */
		1974	frame->prepare = prepare_nop;
		1975	}
		1976
		1977	frame->check = slf_check_pool_handler;
		1978	frame->data = (void *)coro;
		1979	}
		1980
1751	/*****************************************************************************/	1981	/*****************************************************************************/
1752	/* rouse callback */	1982	/* rouse callback */
1753		1983
1754	#define CORO_MAGIC_type_rouse PERL_MAGIC_ext	1984	#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
1755		1985
…		…
1760	SV *data = (SV *)GENSUB_ARG;	1990	SV *data = (SV *)GENSUB_ARG;
1761		1991
1762	if (SvTYPE (SvRV (data)) != SVt_PVAV)	1992	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1763	{	1993	{
1764	/* first call, set args */	1994	/* first call, set args */
1765	int i;
1766	AV *av = newAV ();	1995	AV *av = newAV ();
1767	SV *coro = SvRV (data);	1996	SV *coro = SvRV (data);
1768		1997
1769	SvRV_set (data, (SV *)av);	1998	SvRV_set (data, (SV *)av);
1770	api_ready (aTHX_ coro);	1999	api_ready (aTHX_ coro);
…		…
1911	static void	2140	static void
1912	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2141	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1913	{	2142	{
1914	frame->prepare = prepare_schedule;	2143	frame->prepare = prepare_schedule;
1915	frame->check = slf_check_nop;	2144	frame->check = slf_check_nop;
		2145	}
		2146
		2147	static void
		2148	slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
		2149	{
		2150	struct coro *next = (struct coro *)slf_frame.data;
		2151
		2152	SvREFCNT_inc_NN (next->hv);
		2153	prepare_schedule_to (aTHX_ ta, next);
		2154	}
		2155
		2156	static void
		2157	slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2158	{
		2159	if (!items)
		2160	croak ("Coro::schedule_to expects a coroutine argument, caught");
		2161
		2162	frame->data = (void *)SvSTATE (arg [0]);
		2163	frame->prepare = slf_prepare_schedule_to;
		2164	frame->check = slf_check_nop;
		2165	}
		2166
		2167	static void
		2168	slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2169	{
		2170	api_ready (aTHX_ SvRV (coro_current));
		2171
		2172	slf_init_schedule_to (aTHX_ frame, cv, arg, items);
1916	}	2173	}
1917		2174
1918	static void	2175	static void
1919	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2176	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1920	{	2177	{
…		…
2066	}	2323	}
2067	else	2324	else
2068	slf_argc = 0;	2325	slf_argc = 0;
2069		2326
2070	PL_op->op_ppaddr = pp_slf;	2327	PL_op->op_ppaddr = pp_slf;
2071	PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */	2328	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2072		2329
2073	PL_op = (OP *)&slf_restore;	2330	PL_op = (OP *)&slf_restore;
		2331	}
		2332
		2333	/*****************************************************************************/
		2334	/* dynamic wind */
		2335
		2336	static void
		2337	on_enterleave_call (pTHX_ SV *cb)
		2338	{
		2339	dSP;
		2340
		2341	PUSHSTACK;
		2342
		2343	PUSHMARK (SP);
		2344	PUTBACK;
		2345	call_sv (cb, G_VOID | G_DISCARD);
		2346	SPAGAIN;
		2347
		2348	POPSTACK;
		2349	}
		2350
		2351	static SV *
		2352	coro_avp_pop_and_free (pTHX_ AV **avp)
		2353	{
		2354	AV *av = *avp;
		2355	SV *res = av_pop (av);
		2356
		2357	if (AvFILLp (av) < 0)
		2358	{
		2359	*avp = 0;
		2360	SvREFCNT_dec (av);
		2361	}
		2362
		2363	return res;
		2364	}
		2365
		2366	static void
		2367	coro_pop_on_enter (pTHX_ void *coro)
		2368	{
		2369	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
		2370	SvREFCNT_dec (cb);
		2371	}
		2372
		2373	static void
		2374	coro_pop_on_leave (pTHX_ void *coro)
		2375	{
		2376	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
		2377	on_enterleave_call (aTHX_ sv_2mortal (cb));
2074	}	2378	}
2075		2379
2076	/*****************************************************************************/	2380	/*****************************************************************************/
2077	/* PerlIO::cede */	2381	/* PerlIO::cede */
2078		2382
…		…
2159	SV **ary;	2463	SV **ary;
2160		2464
2161	/* unfortunately, building manually saves memory */	2465	/* unfortunately, building manually saves memory */
2162	Newx (ary, 2, SV *);	2466	Newx (ary, 2, SV *);
2163	AvALLOC (av) = ary;	2467	AvALLOC (av) = ary;
		2468	#if PERL_VERSION_ATLEAST (5,10,0)
2164	/*AvARRAY (av) = ary;*/	2469	AvARRAY (av) = ary;
		2470	#else
2165	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */	2471	/* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
		2472	/* -DDEBUGGING flags this as a bug, despite it perfectly working */
		2473	SvPVX ((SV *)av) = (char *)ary;
		2474	#endif
2166	AvMAX (av) = 1;	2475	AvMAX (av) = 1;
2167	AvFILLp (av) = 0;	2476	AvFILLp (av) = 0;
2168	ary [0] = newSViv (count);	2477	ary [0] = newSViv (count);
2169		2478
2170	return newRV_noinc ((SV *)av);	2479	return newRV_noinc ((SV *)av);
…		…
2299	{	2608	{
2300	if (items >= 2)	2609	if (items >= 2)
2301	{	2610	{
2302	/* callback form */	2611	/* callback form */
2303	AV *av = (AV *)SvRV (arg [0]);	2612	AV *av = (AV *)SvRV (arg [0]);
2304	CV *cb_cv = coro_sv_2cv (arg [1]);	2613	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2305		2614
2306	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2615	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2307		2616
2308	if (SvIVX (AvARRAY (av)[0]) > 0)	2617	if (SvIVX (AvARRAY (av)[0]) > 0)
2309	coro_semaphore_adjust (aTHX_ av, 0);	2618	coro_semaphore_adjust (aTHX_ av, 0);
…		…
2395	dXSARGS;	2704	dXSARGS;
2396	AV *state = (AV *)GENSUB_ARG;	2705	AV *state = (AV *)GENSUB_ARG;
2397	SV *coro = av_pop (state);	2706	SV *coro = av_pop (state);
2398	SV *data_sv = newSV (sizeof (struct io_state));	2707	SV *data_sv = newSV (sizeof (struct io_state));
2399		2708
2400	av_extend (state, items);	2709	av_extend (state, items - 1);
2401		2710
2402	sv_upgrade (data_sv, SVt_PV);	2711	sv_upgrade (data_sv, SVt_PV);
2403	SvCUR_set (data_sv, sizeof (struct io_state));	2712	SvCUR_set (data_sv, sizeof (struct io_state));
2404	SvPOK_only (data_sv);	2713	SvPOK_only (data_sv);
2405		2714
…		…
2540	XSRETURN_EMPTY;	2849	XSRETURN_EMPTY;
2541	}	2850	}
2542		2851
2543	/*****************************************************************************/	2852	/*****************************************************************************/
2544		2853
		2854	#if CORO_CLONE
		2855	# include "clone.c"
		2856	#endif
		2857
2545	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	2858	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2546		2859
2547	PROTOTYPES: DISABLE	2860	PROTOTYPES: DISABLE
2548		2861
2549	BOOT:	2862	BOOT:
…		…
2553	coro_thx = PERL_GET_CONTEXT;	2866	coro_thx = PERL_GET_CONTEXT;
2554	# endif	2867	# endif
2555	#endif	2868	#endif
2556	BOOT_PAGESIZE;	2869	BOOT_PAGESIZE;
2557		2870
		2871	cctx_current = cctx_new_empty ();
		2872
2558	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);	2873	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2559	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);	2874	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2560		2875
2561	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;	2876	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;	2877	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
…		…
2581		2896
2582	{	2897	{
2583	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));	2898	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2584		2899
2585	if (!PL_custom_op_names) PL_custom_op_names = newHV ();	2900	if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2586	hv_store_ent (PL_custom_op_names, slf,	2901	hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2587	newSVpv ("coro_slf", 0), 0);
2588		2902
2589	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();	2903	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2590	hv_store_ent (PL_custom_op_descs, slf,	2904	hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2591	newSVpv ("coro schedule like function", 0), 0);
2592	}	2905	}
2593		2906
2594	coroapi.ver = CORO_API_VERSION;	2907	coroapi.ver = CORO_API_VERSION;
2595	coroapi.rev = CORO_API_REVISION;	2908	coroapi.rev = CORO_API_REVISION;
2596		2909
…		…
2627	CV *cb;	2940	CV *cb;
2628	int i;	2941	int i;
2629		2942
2630	if (items > 1)	2943	if (items > 1)
2631	{	2944	{
2632	cb = coro_sv_2cv (ST (1));	2945	cb = coro_sv_2cv (aTHX_ ST (1));
2633		2946
		2947	if (!ix)
		2948	{
2634	if (CvISXSUB (cb))	2949	if (CvISXSUB (cb))
2635	croak ("Coro::State doesn't support XS functions as coroutine start, caught");	2950	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2636		2951
2637	if (!CvROOT (cb))	2952	if (!CvROOT (cb))
2638	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");	2953	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		2954	}
2639	}	2955	}
2640		2956
2641	Newz (0, coro, 1, struct coro);	2957	Newz (0, coro, 1, struct coro);
2642	coro->args = newAV ();	2958	coro->args = newAV ();
2643	coro->flags = CF_NEW;	2959	coro->flags = CF_NEW;
…		…
2651	mg->mg_flags |= MGf_DUP;	2967	mg->mg_flags |= MGf_DUP;
2652	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	2968	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2653		2969
2654	if (items > 1)	2970	if (items > 1)
2655	{	2971	{
2656	av_extend (coro->args, items - 1 + ix);	2972	av_extend (coro->args, items - 1 + ix - 1);
2657		2973
2658	if (ix)	2974	if (ix)
2659	{	2975	{
2660	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));	2976	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2661	cb = coro_run_cv;	2977	cb = cv_coro_run;
2662	}	2978	}
2663		2979
2664	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);	2980	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2665		2981
2666	for (i = 2; i < items; i++)	2982	for (i = 2; i < items; i++)
…		…
2686	void	3002	void
2687	_exit (int code)	3003	_exit (int code)
2688	PROTOTYPE: $	3004	PROTOTYPE: $
2689	CODE:	3005	CODE:
2690	_exit (code);	3006	_exit (code);
		3007
		3008	SV *
		3009	clone (Coro::State coro)
		3010	CODE:
		3011	{
		3012	#if CORO_CLONE
		3013	struct coro *ncoro = coro_clone (aTHX_ coro);
		3014	MAGIC *mg;
		3015	/* TODO: too much duplication */
		3016	ncoro->hv = newHV ();
		3017	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
		3018	mg->mg_flags |= MGf_DUP;
		3019	RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
		3020	#else
		3021	croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
		3022	#endif
		3023	}
		3024	OUTPUT:
		3025	RETVAL
2691		3026
2692	int	3027	int
2693	cctx_stacksize (int new_stacksize = 0)	3028	cctx_stacksize (int new_stacksize = 0)
2694	PROTOTYPE: ;$	3029	PROTOTYPE: ;$
2695	CODE:	3030	CODE:
…		…
2745	eval = 1	3080	eval = 1
2746	CODE:	3081	CODE:
2747	{	3082	{
2748	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3083	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2749	{	3084	{
2750	struct coro temp;	3085	struct coro *current = SvSTATE_current;
2751		3086
2752	if (!(coro->flags & CF_RUNNING))	3087	if (current != coro)
2753	{	3088	{
2754	PUTBACK;	3089	PUTBACK;
2755	save_perl (aTHX_ &temp);	3090	save_perl (aTHX_ current);
2756	load_perl (aTHX_ coro);	3091	load_perl (aTHX_ coro);
		3092	SPAGAIN;
2757	}	3093	}
2758		3094
2759	{
2760	dSP;
2761	ENTER;
2762	SAVETMPS;
2763	PUTBACK;
2764	PUSHSTACK;	3095	PUSHSTACK;
		3096
2765	PUSHMARK (SP);	3097	PUSHMARK (SP);
		3098	PUTBACK;
2766		3099
2767	if (ix)	3100	if (ix)
2768	eval_sv (coderef, 0);	3101	eval_sv (coderef, 0);
2769	else	3102	else
2770	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3103	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2771		3104
		3105	SPAGAIN;
2772	POPSTACK;	3106	POPSTACK;
2773	SPAGAIN;
2774	FREETMPS;
2775	LEAVE;
2776	PUTBACK;
2777	}
2778		3107
2779	if (!(coro->flags & CF_RUNNING))	3108	if (current != coro)
2780	{	3109	{
		3110	PUTBACK;
2781	save_perl (aTHX_ coro);	3111	save_perl (aTHX_ coro);
2782	load_perl (aTHX_ &temp);	3112	load_perl (aTHX_ current);
2783	SPAGAIN;	3113	SPAGAIN;
2784	}	3114	}
2785	}	3115	}
2786	}	3116	}
2787		3117
…		…
2816		3146
2817	SV *	3147	SV *
2818	has_cctx (Coro::State coro)	3148	has_cctx (Coro::State coro)
2819	PROTOTYPE: $	3149	PROTOTYPE: $
2820	CODE:	3150	CODE:
2821	RETVAL = boolSV (!!coro->cctx);	3151	/* maybe manage the running flag differently */
		3152	RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2822	OUTPUT:	3153	OUTPUT:
2823	RETVAL	3154	RETVAL
2824		3155
2825	int	3156	int
2826	is_traced (Coro::State coro)	3157	is_traced (Coro::State coro)
…		…
2846		3177
2847	void	3178	void
2848	force_cctx ()	3179	force_cctx ()
2849	PROTOTYPE:	3180	PROTOTYPE:
2850	CODE:	3181	CODE:
2851	SvSTATE_current->cctx->idle_sp = 0;	3182	cctx_current->idle_sp = 0;
2852		3183
2853	void	3184	void
2854	swap_defsv (Coro::State self)	3185	swap_defsv (Coro::State self)
2855	PROTOTYPE: $	3186	PROTOTYPE: $
2856	ALIAS:	3187	ALIAS:
…		…
2871		3202
2872	BOOT:	3203	BOOT:
2873	{	3204	{
2874	int i;	3205	int i;
2875		3206
2876	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2877	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3207	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2878	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3208	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2879	coro_run_cv = get_cv (aTHX_ "Coro::_terminate", GV_ADD);	3209	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
		3210	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2880	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE);	3211	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2881	SvREADONLY_on (coro_current);	3212	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		3213	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
		3214	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3215	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
		3216
		3217	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
		3218	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
		3219	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
		3220	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2882		3221
2883	coro_stash = gv_stashpv ("Coro", TRUE);	3222	coro_stash = gv_stashpv ("Coro", TRUE);
2884		3223
2885	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3224	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
2886	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3225	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
…		…
2894		3233
2895	{	3234	{
2896	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3235	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2897		3236
2898	coroapi.schedule = api_schedule;	3237	coroapi.schedule = api_schedule;
		3238	coroapi.schedule_to = api_schedule_to;
2899	coroapi.cede = api_cede;	3239	coroapi.cede = api_cede;
2900	coroapi.cede_notself = api_cede_notself;	3240	coroapi.cede_notself = api_cede_notself;
2901	coroapi.ready = api_ready;	3241	coroapi.ready = api_ready;
2902	coroapi.is_ready = api_is_ready;	3242	coroapi.is_ready = api_is_ready;
2903	coroapi.nready = coro_nready;	3243	coroapi.nready = coro_nready;
…		…
2908	SvREADONLY_on (sv);	3248	SvREADONLY_on (sv);
2909	}	3249	}
2910	}	3250	}
2911		3251
2912	void	3252	void
		3253	terminate (...)
		3254	CODE:
		3255	CORO_EXECUTE_SLF_XS (slf_init_terminate);
		3256
		3257	void
2913	schedule (...)	3258	schedule (...)
2914	CODE:	3259	CODE:
2915	CORO_EXECUTE_SLF_XS (slf_init_schedule);	3260	CORO_EXECUTE_SLF_XS (slf_init_schedule);
		3261
		3262	void
		3263	schedule_to (...)
		3264	CODE:
		3265	CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
		3266
		3267	void
		3268	cede_to (...)
		3269	CODE:
		3270	CORO_EXECUTE_SLF_XS (slf_init_cede_to);
2916		3271
2917	void	3272	void
2918	cede (...)	3273	cede (...)
2919	CODE:	3274	CODE:
2920	CORO_EXECUTE_SLF_XS (slf_init_cede);	3275	CORO_EXECUTE_SLF_XS (slf_init_cede);
2921		3276
2922	void	3277	void
2923	cede_notself (...)	3278	cede_notself (...)
2924	CODE:	3279	CODE:
2925	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3280	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
		3281
		3282	void
		3283	_cancel (Coro::State self)
		3284	CODE:
		3285	coro_state_destroy (aTHX_ self);
		3286	coro_call_on_destroy (aTHX_ self);
2926		3287
2927	void	3288	void
2928	_set_current (SV *current)	3289	_set_current (SV *current)
2929	PROTOTYPE: $	3290	PROTOTYPE: $
2930	CODE:	3291	CODE:
…		…
2975	CODE:	3336	CODE:
2976	RETVAL = coro_nready;	3337	RETVAL = coro_nready;
2977	OUTPUT:	3338	OUTPUT:
2978	RETVAL	3339	RETVAL
2979		3340
2980	# for async_pool speedup
2981	void	3341	void
2982	_pool_1 (SV *cb)	3342	_pool_handler (...)
2983	CODE:	3343	CODE:
2984	{	3344	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
2985	HV *hv = (HV *)SvRV (coro_current);
2986	struct coro *coro = SvSTATE_hv ((SV *)hv);
2987	AV *defav = GvAV (PL_defgv);
2988	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2989	AV *invoke_av;
2990	int i, len;
2991		3345
2992	if (!invoke)	3346	void
		3347	async_pool (SV *cv, ...)
		3348	PROTOTYPE: &@
		3349	PPCODE:
		3350	{
		3351	HV *hv = (HV *)av_pop (av_async_pool);
		3352	AV *av = newAV ();
		3353	SV *cb = ST (0);
		3354	int i;
		3355
		3356	av_extend (av, items - 2);
		3357	for (i = 1; i < items; ++i)
		3358	av_push (av, SvREFCNT_inc_NN (ST (i)));
		3359
		3360	if ((SV *)hv == &PL_sv_undef)
2993	{	3361	{
2994	SV *old = PL_diehook;	3362	PUSHMARK (SP);
2995	PL_diehook = 0;	3363	EXTEND (SP, 2);
2996	SvREFCNT_dec (old);	3364	PUSHs (sv_Coro);
2997	croak ("\3async_pool terminate\2\n");	3365	PUSHs ((SV *)cv_pool_handler);
		3366	PUTBACK;
		3367	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
		3368	SPAGAIN;
		3369
		3370	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
2998	}	3371	}
2999		3372
3000	SvREFCNT_dec (coro->saved_deffh);
3001	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
3002
3003	hv_store (hv, "desc", sizeof ("desc") - 1,
3004	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
3005
3006	invoke_av = (AV *)SvRV (invoke);
3007	len = av_len (invoke_av);
3008
3009	sv_setsv (cb, AvARRAY (invoke_av)[0]);
3010
3011	if (len > 0)
3012	{	3373	{
3013	av_fill (defav, len - 1);	3374	struct coro *coro = SvSTATE_hv (hv);
3014	for (i = 0; i < len; ++i)	3375
3015	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));	3376	assert (!coro->invoke_cb);
		3377	assert (!coro->invoke_av);
		3378	coro->invoke_cb = SvREFCNT_inc (cb);
		3379	coro->invoke_av = av;
3016	}	3380	}
3017	}
3018		3381
3019	void	3382	api_ready (aTHX_ (SV *)hv);
3020	_pool_2 (SV *cb)
3021	CODE:
3022	{
3023	HV *hv = (HV *)SvRV (coro_current);
3024	struct coro *coro = SvSTATE_hv ((SV *)hv);
3025		3383
3026	sv_setsv (cb, &PL_sv_undef);	3384	if (GIMME_V != G_VOID)
3027		3385	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3028	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;	3386	else
3029	coro->saved_deffh = 0;
3030
3031	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
3032	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
3033	{
3034	SV *old = PL_diehook;
3035	PL_diehook = 0;
3036	SvREFCNT_dec (old);	3387	SvREFCNT_dec (hv);
3037	croak ("\3async_pool terminate\2\n");
3038	}
3039
3040	av_clear (GvAV (PL_defgv));
3041	hv_store (hv, "desc", sizeof ("desc") - 1,
3042	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
3043
3044	coro->prio = 0;
3045
3046	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
3047	api_trace (aTHX_ coro_current, 0);
3048
3049	av_push (av_async_pool, newSVsv (coro_current));
3050	}	3388	}
3051		3389
3052	SV *	3390	SV *
3053	rouse_cb ()	3391	rouse_cb ()
3054	PROTOTYPE:	3392	PROTOTYPE:
…		…
3060	void	3398	void
3061	rouse_wait (...)	3399	rouse_wait (...)
3062	PROTOTYPE: ;$	3400	PROTOTYPE: ;$
3063	PPCODE:	3401	PPCODE:
3064	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3402	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
		3403
		3404	void
		3405	on_enter (SV *block)
		3406	ALIAS:
		3407	on_leave = 1
		3408	PROTOTYPE: &
		3409	CODE:
		3410	{
		3411	struct coro *coro = SvSTATE_current;
		3412	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3413
		3414	block = (SV *)coro_sv_2cv (aTHX_ block);
		3415
		3416	if (!*avp)
		3417	*avp = newAV ();
		3418
		3419	av_push (*avp, SvREFCNT_inc (block));
		3420
		3421	if (!ix)
		3422	on_enterleave_call (aTHX_ block);
		3423
		3424	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around xs calls */
		3425	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3426	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around xs calls */
		3427	}
3065		3428
3066		3429
3067	MODULE = Coro::State PACKAGE = PerlIO::cede	3430	MODULE = Coro::State PACKAGE = PerlIO::cede
3068		3431
3069	BOOT:	3432	BOOT:
…		…
3228		3591
3229	void	3592	void
3230	_register (char *target, char *proto, SV *req)	3593	_register (char *target, char *proto, SV *req)
3231	CODE:	3594	CODE:
3232	{	3595	{
3233	CV *req_cv = coro_sv_2cv (req);	3596	CV *req_cv = coro_sv_2cv (aTHX_ req);
3234	/* newXSproto doesn't return the CV on 5.8 */	3597	/* newXSproto doesn't return the CV on 5.8 */
3235	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3598	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3236	sv_setpv ((SV *)slf_cv, proto);	3599	sv_setpv ((SV *)slf_cv, proto);
3237	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3600	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3238	}	3601	}

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