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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.306 by root, Wed Nov 19 11:11:10 2008 UTC vs.
Revision 1.350 by root, Sat Jun 20 08:58:00 2009 UTC

…		…
55		55
56	#define PERL_VERSION_ATLEAST(a,b,c) \	56	#define PERL_VERSION_ATLEAST(a,b,c) \
57	(PERL_REVISION > (a) \	57	(PERL_REVISION > (a) \
58	|| (PERL_REVISION == (a) \	58	|| (PERL_REVISION == (a) \
59	&& (PERL_VERSION > (b) \	59	&& (PERL_VERSION > (b) \
60	|| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))	60	|| (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61		61
62	#if !PERL_VERSION_ATLEAST (5,6,0)	62	#if !PERL_VERSION_ATLEAST (5,6,0)
63	# ifndef PL_ppaddr	63	# ifndef PL_ppaddr
64	# define PL_ppaddr ppaddr	64	# define PL_ppaddr ppaddr
65	# endif	65	# endif
…		…
98	# define newSV(l) NEWSV(0,l)	98	# define newSV(l) NEWSV(0,l)
99	#endif	99	#endif
100	#ifndef CvISXSUB_on	100	#ifndef CvISXSUB_on
101	# define CvISXSUB_on(cv) (void)cv	101	# define CvISXSUB_on(cv) (void)cv
102	#endif	102	#endif
		103	#ifndef CvISXSUB
		104	# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
		105	#endif
		106	#ifndef Newx
		107	# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
		108	#endif
103		109
104	/* 5.8.7 */	110	/* 5.8.7 */
105	#ifndef SvRV_set	111	#ifndef SvRV_set
106	# define SvRV_set(s,v) SvRV(s) = (v)	112	# define SvRV_set(s,v) SvRV(s) = (v)
107	#endif	113	#endif
…		…
127	#else	133	#else
128	# define dSTACKLEVEL volatile void *stacklevel	134	# define dSTACKLEVEL volatile void *stacklevel
129	# define STACKLEVEL ((void *)&stacklevel)	135	# define STACKLEVEL ((void *)&stacklevel)
130	#endif	136	#endif
131		137
132	#define IN_DESTRUCT (PL_main_cv == Nullcv)	138	#define IN_DESTRUCT PL_dirty
133		139
134	#if __GNUC__ >= 3	140	#if __GNUC__ >= 3
135	# define attribute(x) __attribute__(x)	141	# define attribute(x) __attribute__(x)
136	# define expect(expr,value) __builtin_expect ((expr),(value))	142	# define expect(expr,value) __builtin_expect ((expr),(value))
137	# define INLINE static inline	143	# define INLINE static inline
…		…
167	static AV *main_mainstack; /* used to differentiate between $main and others */	173	static AV *main_mainstack; /* used to differentiate between $main and others */
168	static JMPENV *main_top_env;	174	static JMPENV *main_top_env;
169	static HV *coro_state_stash, *coro_stash;	175	static HV *coro_state_stash, *coro_stash;
170	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */	176	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
171		177
		178	static AV *av_destroy; /* destruction queue */
		179	static SV *sv_manager; /* the manager coro */
		180	static SV *sv_idle; /* $Coro::idle */
		181
172	static GV *irsgv; /* $/ */	182	static GV *irsgv; /* $/ */
173	static GV *stdoutgv; /* *STDOUT */	183	static GV *stdoutgv; /* *STDOUT */
174	static SV *rv_diehook;	184	static SV *rv_diehook;
175	static SV *rv_warnhook;	185	static SV *rv_warnhook;
176	static HV *hv_sig; /* %SIG */	186	static HV *hv_sig; /* %SIG */
177		187
178	/* async_pool helper stuff */	188	/* async_pool helper stuff */
179	static SV *sv_pool_rss;	189	static SV *sv_pool_rss;
180	static SV *sv_pool_size;	190	static SV *sv_pool_size;
		191	static SV *sv_async_pool_idle; /* description string */
181	static AV *av_async_pool;	192	static AV *av_async_pool; /* idle pool */
		193	static SV *sv_Coro; /* class string */
		194	static CV *cv_pool_handler;
		195	static CV *cv_coro_state_new;
182		196
183	/* Coro::AnyEvent */	197	/* Coro::AnyEvent */
184	static SV *sv_activity;	198	static SV *sv_activity;
185		199
186	static struct coro_cctx *cctx_first;	200	static struct coro_cctx *cctx_first;
…		…
215	int valgrind_id;	229	int valgrind_id;
216	#endif	230	#endif
217	unsigned char flags;	231	unsigned char flags;
218	} coro_cctx;	232	} coro_cctx;
219		233
		234	coro_cctx *cctx_current; /* the currently running cctx */
		235
		236	/*****************************************************************************/
		237
220	enum {	238	enum {
221	CF_RUNNING = 0x0001, /* coroutine is running */	239	CF_RUNNING = 0x0001, /* coroutine is running */
222	CF_READY = 0x0002, /* coroutine is ready */	240	CF_READY = 0x0002, /* coroutine is ready */
223	CF_NEW = 0x0004, /* has never been switched to */	241	CF_NEW = 0x0004, /* has never been switched to */
224	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	242	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
		243	CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
225	};	244	};
226		245
227	/* the structure where most of the perl state is stored, overlaid on the cxstack */	246	/* the structure where most of the perl state is stored, overlaid on the cxstack */
228	typedef struct	247	typedef struct
229	{	248	{
230	SV *defsv;	249	SV *defsv;
231	AV *defav;	250	AV *defav;
232	SV *errsv;	251	SV *errsv;
233	SV *irsgv;	252	SV *irsgv;
		253	HV *hinthv;
234	#define VAR(name,type) type name;	254	#define VAR(name,type) type name;
235	# include "state.h"	255	# include "state.h"
236	#undef VAR	256	#undef VAR
237	} perl_slots;	257	} perl_slots;
238		258
…		…
241	/* this is a structure representing a perl-level coroutine */	261	/* this is a structure representing a perl-level coroutine */
242	struct coro {	262	struct coro {
243	/* the C coroutine allocated to this perl coroutine, if any */	263	/* the C coroutine allocated to this perl coroutine, if any */
244	coro_cctx *cctx;	264	coro_cctx *cctx;
245		265
		266	/* ready queue */
		267	struct coro *next_ready;
		268
246	/* state data */	269	/* state data */
247	struct CoroSLF slf_frame; /* saved slf frame */	270	struct CoroSLF slf_frame; /* saved slf frame */
248	AV *mainstack;	271	AV *mainstack;
249	perl_slots *slot; /* basically the saved sp */	272	perl_slots *slot; /* basically the saved sp */
250		273
		274	CV *startcv; /* the CV to execute */
251	AV *args; /* data associated with this coroutine (initial args) */	275	AV *args; /* data associated with this coroutine (initial args) */
252	int refcnt; /* coroutines are refcounted, yes */	276	int refcnt; /* coroutines are refcounted, yes */
253	int flags; /* CF_ flags */	277	int flags; /* CF_ flags */
254	HV *hv; /* the perl hash associated with this coro, if any */	278	HV *hv; /* the perl hash associated with this coro, if any */
255	void (*on_destroy)(pTHX_ struct coro *coro);	279	void (*on_destroy)(pTHX_ struct coro *coro);
256		280
257	/* statistics */	281	/* statistics */
258	int usecount; /* number of transfers to this coro */	282	int usecount; /* number of transfers to this coro */
259		283
…		…
262	SV *except; /* exception to be thrown */	286	SV *except; /* exception to be thrown */
263	SV *rouse_cb;	287	SV *rouse_cb;
264		288
265	/* async_pool */	289	/* async_pool */
266	SV *saved_deffh;	290	SV *saved_deffh;
		291	SV *invoke_cb;
		292	AV *invoke_av;
		293
		294	/* on_enter/on_leave */
		295	AV *on_enter;
		296	AV *on_leave;
267		297
268	/* linked list */	298	/* linked list */
269	struct coro *next, *prev;	299	struct coro *next, *prev;
270	};	300	};
271		301
…		…
287	#define PRIO_MIN -4	317	#define PRIO_MIN -4
288		318
289	/* for Coro.pm */	319	/* for Coro.pm */
290	static SV *coro_current;	320	static SV *coro_current;
291	static SV *coro_readyhook;	321	static SV *coro_readyhook;
292	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	322	static struct coro *coro_ready [PRIO_MAX - PRIO_MIN + 1][2]; /* head|tail */
		323	static CV *cv_coro_run, *cv_coro_terminate;
293	static struct coro *coro_first;	324	static struct coro *coro_first;
294	#define coro_nready coroapi.nready	325	#define coro_nready coroapi.nready
295		326
296	/** lowlevel stuff **********************************************************/	327	/** lowlevel stuff **********************************************************/
297		328
…		…
323	get_hv (name, create);	354	get_hv (name, create);
324	#endif	355	#endif
325	return get_hv (name, create);	356	return get_hv (name, create);
326	}	357	}
327		358
		359	/* may croak */
		360	INLINE CV *
		361	coro_sv_2cv (pTHX_ SV *sv)
		362	{
		363	HV *st;
		364	GV *gvp;
		365	CV *cv = sv_2cv (sv, &st, &gvp, 0);
		366
		367	if (!cv)
		368	croak ("code reference expected");
		369
		370	return cv;
		371	}
		372
		373	/*****************************************************************************/
		374	/* magic glue */
		375
		376	#define CORO_MAGIC_type_cv 26
		377	#define CORO_MAGIC_type_state PERL_MAGIC_ext
		378
		379	#define CORO_MAGIC_NN(sv, type) \
		380	(expect_true (SvMAGIC (sv)->mg_type == type) \
		381	? SvMAGIC (sv) \
		382	: mg_find (sv, type))
		383
		384	#define CORO_MAGIC(sv, type) \
		385	(expect_true (SvMAGIC (sv)) \
		386	? CORO_MAGIC_NN (sv, type) \
		387	: 0)
		388
		389	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		390	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
		391
		392	INLINE struct coro *
		393	SvSTATE_ (pTHX_ SV *coro)
		394	{
		395	HV *stash;
		396	MAGIC *mg;
		397
		398	if (SvROK (coro))
		399	coro = SvRV (coro);
		400
		401	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		402	croak ("Coro::State object required");
		403
		404	stash = SvSTASH (coro);
		405	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		406	{
		407	/* very slow, but rare, check */
		408	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		409	croak ("Coro::State object required");
		410	}
		411
		412	mg = CORO_MAGIC_state (coro);
		413	return (struct coro *)mg->mg_ptr;
		414	}
		415
		416	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		417
		418	/* faster than SvSTATE, but expects a coroutine hv */
		419	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
		420	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
		421
		422	/*****************************************************************************/
		423	/* padlist management and caching */
		424
328	static AV *	425	static AV *
329	coro_clone_padlist (pTHX_ CV *cv)	426	coro_derive_padlist (pTHX_ CV *cv)
330	{	427	{
331	AV *padlist = CvPADLIST (cv);	428	AV *padlist = CvPADLIST (cv);
332	AV *newpadlist, *newpad;	429	AV *newpadlist, *newpad;
333		430
334	newpadlist = newAV ();	431	newpadlist = newAV ();
…		…
339	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	436	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
340	#endif	437	#endif
341	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	438	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
342	--AvFILLp (padlist);	439	--AvFILLp (padlist);
343		440
344	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));	441	av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
345	av_store (newpadlist, 1, (SV *)newpad);	442	av_store (newpadlist, 1, (SV *)newpad);
346		443
347	return newpadlist;	444	return newpadlist;
348	}	445	}
349		446
350	static void	447	static void
351	free_padlist (pTHX_ AV *padlist)	448	free_padlist (pTHX_ AV *padlist)
352	{	449	{
353	/* may be during global destruction */	450	/* may be during global destruction */
354	if (SvREFCNT (padlist))	451	if (!IN_DESTRUCT)
355	{	452	{
356	I32 i = AvFILLp (padlist);	453	I32 i = AvFILLp (padlist);
357	while (i >= 0)	454
		455	while (i > 0) /* special-case index 0 */
358	{	456	{
359	SV **svp = av_fetch (padlist, i--, FALSE);	457	/* we try to be extra-careful here */
360	if (svp)	458	AV *av = (AV *)AvARRAY (padlist)[i--];
361	{	459	I32 j = AvFILLp (av);
362	SV *sv;	460
363	while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))	461	while (j >= 0)
		462	SvREFCNT_dec (AvARRAY (av)[j--]);
		463
		464	AvFILLp (av) = -1;
364	SvREFCNT_dec (sv);	465	SvREFCNT_dec (av);
365
366	SvREFCNT_dec (*svp);
367	}
368	}	466	}
369		467
		468	SvREFCNT_dec (AvARRAY (padlist)[0]);
		469
		470	AvFILLp (padlist) = -1;
370	SvREFCNT_dec ((SV*)padlist);	471	SvREFCNT_dec ((SV*)padlist);
371	}	472	}
372	}	473	}
373		474
374	static int	475	static int
…		…
383		484
384	SvREFCNT_dec (av); /* sv_magicext increased the refcount */	485	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
385		486
386	return 0;	487	return 0;
387	}	488	}
388
389	#define CORO_MAGIC_type_cv 26
390	#define CORO_MAGIC_type_state PERL_MAGIC_ext
391		489
392	static MGVTBL coro_cv_vtbl = {	490	static MGVTBL coro_cv_vtbl = {
393	0, 0, 0, 0,	491	0, 0, 0, 0,
394	coro_cv_free	492	coro_cv_free
395	};	493	};
396
397	#define CORO_MAGIC_NN(sv, type) \
398	(expect_true (SvMAGIC (sv)->mg_type == type) \
399	? SvMAGIC (sv) \
400	: mg_find (sv, type))
401
402	#define CORO_MAGIC(sv, type) \
403	(expect_true (SvMAGIC (sv)) \
404	? CORO_MAGIC_NN (sv, type) \
405	: 0)
406
407	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
408	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
409
410	INLINE struct coro *
411	SvSTATE_ (pTHX_ SV *coro)
412	{
413	HV *stash;
414	MAGIC *mg;
415
416	if (SvROK (coro))
417	coro = SvRV (coro);
418
419	if (expect_false (SvTYPE (coro) != SVt_PVHV))
420	croak ("Coro::State object required");
421
422	stash = SvSTASH (coro);
423	if (expect_false (stash != coro_stash && stash != coro_state_stash))
424	{
425	/* very slow, but rare, check */
426	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
427	croak ("Coro::State object required");
428	}
429
430	mg = CORO_MAGIC_state (coro);
431	return (struct coro *)mg->mg_ptr;
432	}
433
434	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
435
436	/* faster than SvSTATE, but expects a coroutine hv */
437	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
438	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
439		494
440	/* the next two functions merely cache the padlists */	495	/* the next two functions merely cache the padlists */
441	static void	496	static void
442	get_padlist (pTHX_ CV *cv)	497	get_padlist (pTHX_ CV *cv)
443	{	498	{
…		…
454	CV *cp = Perl_cv_clone (aTHX_ cv);	509	CV *cp = Perl_cv_clone (aTHX_ cv);
455	CvPADLIST (cv) = CvPADLIST (cp);	510	CvPADLIST (cv) = CvPADLIST (cp);
456	CvPADLIST (cp) = 0;	511	CvPADLIST (cp) = 0;
457	SvREFCNT_dec (cp);	512	SvREFCNT_dec (cp);
458	#else	513	#else
459	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	514	CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
460	#endif	515	#endif
461	}	516	}
462	}	517	}
463		518
464	static void	519	static void
…		…
471	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);	526	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
472		527
473	av = (AV *)mg->mg_obj;	528	av = (AV *)mg->mg_obj;
474		529
475	if (expect_false (AvFILLp (av) >= AvMAX (av)))	530	if (expect_false (AvFILLp (av) >= AvMAX (av)))
476	av_extend (av, AvMAX (av) + 1);	531	av_extend (av, AvFILLp (av) + 1);
477		532
478	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	533	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
479	}	534	}
480		535
481	/** load & save, init *******************************************************/	536	/** load & save, init *******************************************************/
		537
		538	static void
		539	on_enterleave_call (pTHX_ SV *cb);
482		540
483	static void	541	static void
484	load_perl (pTHX_ Coro__State c)	542	load_perl (pTHX_ Coro__State c)
485	{	543	{
486	perl_slots *slot = c->slot;	544	perl_slots *slot = c->slot;
487	c->slot = 0;	545	c->slot = 0;
488		546
489	PL_mainstack = c->mainstack;	547	PL_mainstack = c->mainstack;
490		548
491	GvSV (PL_defgv) = slot->defsv;	549	GvSV (PL_defgv) = slot->defsv;
492	GvAV (PL_defgv) = slot->defav;	550	GvAV (PL_defgv) = slot->defav;
493	GvSV (PL_errgv) = slot->errsv;	551	GvSV (PL_errgv) = slot->errsv;
494	GvSV (irsgv) = slot->irsgv;	552	GvSV (irsgv) = slot->irsgv;
		553	GvHV (PL_hintgv) = slot->hinthv;
495		554
496	#define VAR(name,type) PL_ ## name = slot->name;	555	#define VAR(name,type) PL_ ## name = slot->name;
497	# include "state.h"	556	# include "state.h"
498	#undef VAR	557	#undef VAR
499		558
…		…
513	PUTBACK;	572	PUTBACK;
514	}	573	}
515		574
516	slf_frame = c->slf_frame;	575	slf_frame = c->slf_frame;
517	CORO_THROW = c->except;	576	CORO_THROW = c->except;
		577
		578	if (expect_false (c->on_enter))
		579	{
		580	int i;
		581
		582	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
		583	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
		584	}
518	}	585	}
519		586
520	static void	587	static void
521	save_perl (pTHX_ Coro__State c)	588	save_perl (pTHX_ Coro__State c)
522	{	589	{
		590	if (expect_false (c->on_leave))
		591	{
		592	int i;
		593
		594	for (i = AvFILLp (c->on_leave); i >= 0; --i)
		595	on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
		596	}
		597
523	c->except = CORO_THROW;	598	c->except = CORO_THROW;
524	c->slf_frame = slf_frame;	599	c->slf_frame = slf_frame;
525		600
526	{	601	{
527	dSP;	602	dSP;
…		…
585	c->mainstack = PL_mainstack;	660	c->mainstack = PL_mainstack;
586		661
587	{	662	{
588	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	663	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
589		664
590	slot->defav = GvAV (PL_defgv);	665	slot->defav = GvAV (PL_defgv);
591	slot->defsv = DEFSV;	666	slot->defsv = DEFSV;
592	slot->errsv = ERRSV;	667	slot->errsv = ERRSV;
593	slot->irsgv = GvSV (irsgv);	668	slot->irsgv = GvSV (irsgv);
		669	slot->hinthv = GvHV (PL_hintgv);
594		670
595	#define VAR(name,type) slot->name = PL_ ## name;	671	#define VAR(name,type) slot->name = PL_ ## name;
596	# include "state.h"	672	# include "state.h"
597	#undef VAR	673	#undef VAR
598	}	674	}
…		…
676	#if !PERL_VERSION_ATLEAST (5,10,0)	752	#if !PERL_VERSION_ATLEAST (5,10,0)
677	Safefree (PL_retstack);	753	Safefree (PL_retstack);
678	#endif	754	#endif
679	}	755	}
680		756
		757	#define CORO_RSS \
		758	rss += sizeof (SYM (curstackinfo)); \
		759	rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
		760	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
		761	rss += SYM (tmps_max) * sizeof (SV *); \
		762	rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
		763	rss += SYM (scopestack_max) * sizeof (I32); \
		764	rss += SYM (savestack_max) * sizeof (ANY);
		765
681	static size_t	766	static size_t
682	coro_rss (pTHX_ struct coro *coro)	767	coro_rss (pTHX_ struct coro *coro)
683	{	768	{
684	size_t rss = sizeof (*coro);	769	size_t rss = sizeof (*coro);
685		770
686	if (coro->mainstack)	771	if (coro->mainstack)
687	{	772	{
688	perl_slots tmp_slot;
689	perl_slots *slot;
690
691	if (coro->flags & CF_RUNNING)	773	if (coro->flags & CF_RUNNING)
692	{	774	{
693	slot = &tmp_slot;	775	#define SYM(sym) PL_ ## sym
694		776	CORO_RSS;
695	#define VAR(name,type) slot->name = PL_ ## name;
696	# include "state.h"
697	#undef VAR	777	#undef SYM
698	}	778	}
699	else	779	else
700	slot = coro->slot;
701
702	if (slot)
703	{	780	{
704	rss += sizeof (slot->curstackinfo);	781	#define SYM(sym) coro->slot->sym
705	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	782	CORO_RSS;
706	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	783	#undef SYM
707	rss += slot->tmps_max * sizeof (SV *);
708	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
709	rss += slot->scopestack_max * sizeof (I32);
710	rss += slot->savestack_max * sizeof (ANY);
711
712	#if !PERL_VERSION_ATLEAST (5,10,0)
713	rss += slot->retstack_max * sizeof (OP *);
714	#endif
715	}	784	}
716	}	785	}
717		786
718	return rss;	787	return rss;
719	}	788	}
…		…
732	#endif	801	#endif
733		802
734	/*	803	/*
735	* This overrides the default magic get method of %SIG elements.	804	* This overrides the default magic get method of %SIG elements.
736	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook	805	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
737	* and instead of tryign to save and restore the hash elements, we just provide	806	* and instead of trying to save and restore the hash elements, we just provide
738	* readback here.	807	* readback here.
739	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
740	* not expecting this to actually change the hook. This is a potential problem
741	* when a schedule happens then, but we ignore this.
742	*/	808	*/
743	static int	809	static int
744	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	810	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
745	{	811	{
746	const char *s = MgPV_nolen_const (mg);	812	const char *s = MgPV_nolen_const (mg);
…		…
799	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	865	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
800		866
801	if (svp)	867	if (svp)
802	{	868	{
803	SV *old = *svp;	869	SV *old = *svp;
804	*svp = newSVsv (sv);	870	*svp = SvOK (sv) ? newSVsv (sv) : 0;
805	SvREFCNT_dec (old);	871	SvREFCNT_dec (old);
806	return 0;	872	return 0;
807	}	873	}
808	}	874	}
809		875
…		…
819		885
820	static int	886	static int
821	slf_check_nop (pTHX_ struct CoroSLF *frame)	887	slf_check_nop (pTHX_ struct CoroSLF *frame)
822	{	888	{
823	return 0;	889	return 0;
		890	}
		891
		892	static int
		893	slf_check_repeat (pTHX_ struct CoroSLF *frame)
		894	{
		895	return 1;
824	}	896	}
825		897
826	static UNOP coro_setup_op;	898	static UNOP coro_setup_op;
827		899
828	static void NOINLINE /* noinline to keep it out of the transfer fast path */	900	static void NOINLINE /* noinline to keep it out of the transfer fast path */
…		…
835		907
836	PL_runops = RUNOPS_DEFAULT;	908	PL_runops = RUNOPS_DEFAULT;
837	PL_curcop = &PL_compiling;	909	PL_curcop = &PL_compiling;
838	PL_in_eval = EVAL_NULL;	910	PL_in_eval = EVAL_NULL;
839	PL_comppad = 0;	911	PL_comppad = 0;
		912	PL_comppad_name = 0;
		913	PL_comppad_name_fill = 0;
		914	PL_comppad_name_floor = 0;
840	PL_curpm = 0;	915	PL_curpm = 0;
841	PL_curpad = 0;	916	PL_curpad = 0;
842	PL_localizing = 0;	917	PL_localizing = 0;
843	PL_dirty = 0;	918	PL_dirty = 0;
844	PL_restartop = 0;	919	PL_restartop = 0;
845	#if PERL_VERSION_ATLEAST (5,10,0)	920	#if PERL_VERSION_ATLEAST (5,10,0)
846	PL_parser = 0;	921	PL_parser = 0;
847	#endif	922	#endif
		923	PL_hints = 0;
848		924
849	/* recreate the die/warn hooks */	925	/* recreate the die/warn hooks */
850	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );	926	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
851	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);	927	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
852		928
853	GvSV (PL_defgv) = newSV (0);	929	GvSV (PL_defgv) = newSV (0);
854	GvAV (PL_defgv) = coro->args; coro->args = 0;	930	GvAV (PL_defgv) = coro->args; coro->args = 0;
855	GvSV (PL_errgv) = newSV (0);	931	GvSV (PL_errgv) = newSV (0);
856	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	932	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		933	GvHV (PL_hintgv) = 0;
857	PL_rs = newSVsv (GvSV (irsgv));	934	PL_rs = newSVsv (GvSV (irsgv));
858	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	935	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
859		936
860	{	937	{
861	dSP;	938	dSP;
862	UNOP myop;	939	UNOP myop;
863		940
864	Zero (&myop, 1, UNOP);	941	Zero (&myop, 1, UNOP);
865	myop.op_next = Nullop;	942	myop.op_next = Nullop;
		943	myop.op_type = OP_ENTERSUB;
866	myop.op_flags = OPf_WANT_VOID;	944	myop.op_flags = OPf_WANT_VOID;
867		945
868	PUSHMARK (SP);	946	PUSHMARK (SP);
869	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	947	PUSHs ((SV *)coro->startcv);
870	PUTBACK;	948	PUTBACK;
871	PL_op = (OP *)&myop;	949	PL_op = (OP *)&myop;
872	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	950	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
873	SPAGAIN;
874	}	951	}
875		952
876	/* this newly created coroutine might be run on an existing cctx which most	953	/* this newly created coroutine might be run on an existing cctx which most
877	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.	954	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
878	*/	955	*/
879	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	956	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
880	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */	957	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
881		958
882	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	959	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
883	coro_setup_op.op_next = PL_op;	960	coro_setup_op.op_next = PL_op;
884	coro_setup_op.op_type = OP_CUSTOM;	961	coro_setup_op.op_type = OP_ENTERSUB;
885	coro_setup_op.op_ppaddr = pp_slf;	962	coro_setup_op.op_ppaddr = pp_slf;
886	/* no flags required, as an init function won't be called */	963	/* no flags etc. required, as an init function won't be called */
887		964
888	PL_op = (OP *)&coro_setup_op;	965	PL_op = (OP *)&coro_setup_op;
889		966
890	/* copy throw, in case it was set before coro_setup */	967	/* copy throw, in case it was set before coro_setup */
891	CORO_THROW = coro->except;	968	CORO_THROW = coro->except;
892	}	969	}
893		970
894	static void	971	static void
895	coro_destruct (pTHX_ struct coro *coro)	972	coro_unwind_stacks (pTHX)
896	{	973	{
897	if (!IN_DESTRUCT)	974	if (!IN_DESTRUCT)
898	{	975	{
899	/* restore all saved variables and stuff */	976	/* restore all saved variables and stuff */
900	LEAVE_SCOPE (0);	977	LEAVE_SCOPE (0);
…		…
908	POPSTACK_TO (PL_mainstack);	985	POPSTACK_TO (PL_mainstack);
909		986
910	/* unwind main stack */	987	/* unwind main stack */
911	dounwind (-1);	988	dounwind (-1);
912	}	989	}
		990	}
913		991
914	SvREFCNT_dec (GvSV (PL_defgv));	992	static void
915	SvREFCNT_dec (GvAV (PL_defgv));	993	coro_destruct_perl (pTHX_ struct coro *coro)
916	SvREFCNT_dec (GvSV (PL_errgv));	994	{
917	SvREFCNT_dec (PL_defoutgv);	995	SV *svf [9];
918	SvREFCNT_dec (PL_rs);
919	SvREFCNT_dec (GvSV (irsgv));
920		996
921	SvREFCNT_dec (PL_diehook);
922	SvREFCNT_dec (PL_warnhook);
923		997	{
924	SvREFCNT_dec (CORO_THROW);	998	struct coro *current = SvSTATE_current;
		999
		1000	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
		1001
		1002	save_perl (aTHX_ current);
		1003	load_perl (aTHX_ coro);
		1004	coro_unwind_stacks (aTHX);
		1005	coro_destruct_stacks (aTHX);
		1006
		1007	// now save some sv's to be free'd later
		1008	svf [0] = GvSV (PL_defgv);
		1009	svf [1] = (SV *)GvAV (PL_defgv);
		1010	svf [2] = GvSV (PL_errgv);
		1011	svf [3] = (SV *)PL_defoutgv;
		1012	svf [4] = PL_rs;
		1013	svf [5] = GvSV (irsgv);
		1014	svf [6] = (SV *)GvHV (PL_hintgv);
		1015	svf [7] = PL_diehook;
		1016	svf [8] = PL_warnhook;
		1017
		1018	assert (9 == sizeof (svf) / sizeof (*svf));
		1019
		1020	load_perl (aTHX_ current);
		1021	}
		1022
		1023	{
		1024	int i;
		1025
		1026	for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
		1027	SvREFCNT_dec (svf [i]);
		1028
925	SvREFCNT_dec (coro->saved_deffh);	1029	SvREFCNT_dec (coro->saved_deffh);
926	SvREFCNT_dec (coro->rouse_cb);	1030	SvREFCNT_dec (coro->rouse_cb);
927		1031	SvREFCNT_dec (coro->invoke_cb);
928	coro_destruct_stacks (aTHX);	1032	SvREFCNT_dec (coro->invoke_av);
		1033	}
929	}	1034	}
930		1035
931	INLINE void	1036	INLINE void
932	free_coro_mortal (pTHX)	1037	free_coro_mortal (pTHX)
933	{	1038	{
…		…
941	static int	1046	static int
942	runops_trace (pTHX)	1047	runops_trace (pTHX)
943	{	1048	{
944	COP *oldcop = 0;	1049	COP *oldcop = 0;
945	int oldcxix = -2;	1050	int oldcxix = -2;
946	struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
947	coro_cctx *cctx = coro->cctx;
948		1051
949	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))	1052	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
950	{	1053	{
951	PERL_ASYNC_CHECK ();	1054	PERL_ASYNC_CHECK ();
952		1055
953	if (cctx->flags & CC_TRACE_ALL)	1056	if (cctx_current->flags & CC_TRACE_ALL)
954	{	1057	{
955	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)	1058	if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
956	{	1059	{
957	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1060	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
958	SV **bot, **top;	1061	SV **bot, **top;
959	AV *av = newAV (); /* return values */	1062	AV *av = newAV (); /* return values */
960	SV **cb;	1063	SV **cb;
…		…
997		1100
998	if (PL_curcop != &PL_compiling)	1101	if (PL_curcop != &PL_compiling)
999	{	1102	{
1000	SV **cb;	1103	SV **cb;
1001		1104
1002	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)	1105	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1003	{	1106	{
1004	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1107	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1005		1108
1006	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1109	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1007	{	1110	{
1008	runops_proc_t old_runops = PL_runops;
1009	dSP;	1111	dSP;
1010	GV *gv = CvGV (cx->blk_sub.cv);	1112	GV *gv = CvGV (cx->blk_sub.cv);
1011	SV *fullname = sv_2mortal (newSV (0));	1113	SV *fullname = sv_2mortal (newSV (0));
1012		1114
1013	if (isGV (gv))	1115	if (isGV (gv))
…		…
1018	SAVETMPS;	1120	SAVETMPS;
1019	EXTEND (SP, 3);	1121	EXTEND (SP, 3);
1020	PUSHMARK (SP);	1122	PUSHMARK (SP);
1021	PUSHs (&PL_sv_yes);	1123	PUSHs (&PL_sv_yes);
1022	PUSHs (fullname);	1124	PUSHs (fullname);
1023	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	1125	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1024	PUTBACK;	1126	PUTBACK;
1025	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	1127	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
1026	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	1128	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1027	SPAGAIN;	1129	SPAGAIN;
1028	FREETMPS;	1130	FREETMPS;
…		…
1031	}	1133	}
1032		1134
1033	oldcxix = cxstack_ix;	1135	oldcxix = cxstack_ix;
1034	}	1136	}
1035		1137
1036	if (cctx->flags & CC_TRACE_LINE)	1138	if (cctx_current->flags & CC_TRACE_LINE)
1037	{	1139	{
1038	dSP;	1140	dSP;
1039		1141
1040	PL_runops = RUNOPS_DEFAULT;	1142	PL_runops = RUNOPS_DEFAULT;
1041	ENTER;	1143	ENTER;
…		…
1060		1162
1061	TAINT_NOT;	1163	TAINT_NOT;
1062	return 0;	1164	return 0;
1063	}	1165	}
1064		1166
1065	static struct coro_cctx *cctx_ssl_cctx;
1066	static struct CoroSLF cctx_ssl_frame;	1167	static struct CoroSLF cctx_ssl_frame;
1067		1168
1068	static void	1169	static void
1069	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)	1170	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1070	{	1171	{
1071	ta->prev = (struct coro *)cctx_ssl_cctx;
1072	ta->next = 0;	1172	ta->prev = 0;
1073	}	1173	}
1074		1174
1075	static int	1175	static int
1076	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)	1176	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1077	{	1177	{
…		…
1080	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */	1180	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1081	}	1181	}
1082		1182
1083	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */	1183	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1084	static void NOINLINE	1184	static void NOINLINE
1085	cctx_prepare (pTHX_ coro_cctx *cctx)	1185	cctx_prepare (pTHX)
1086	{	1186	{
1087	PL_top_env = &PL_start_env;	1187	PL_top_env = &PL_start_env;
1088		1188
1089	if (cctx->flags & CC_TRACE)	1189	if (cctx_current->flags & CC_TRACE)
1090	PL_runops = runops_trace;	1190	PL_runops = runops_trace;
1091		1191
1092	/* we already must be executing an SLF op, there is no other valid way	1192	/* we already must be executing an SLF op, there is no other valid way
1093	* that can lead to creation of a new cctx */	1193	* that can lead to creation of a new cctx */
1094	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",	1194	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1095	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));	1195	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1096		1196
1097	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */	1197	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1098	cctx_ssl_cctx = cctx;
1099	cctx_ssl_frame = slf_frame;	1198	cctx_ssl_frame = slf_frame;
1100		1199
1101	slf_frame.prepare = slf_prepare_set_stacklevel;	1200	slf_frame.prepare = slf_prepare_set_stacklevel;
1102	slf_frame.check = slf_check_set_stacklevel;	1201	slf_frame.check = slf_check_set_stacklevel;
1103	}	1202	}
…		…
1126	/* normally we would need to skip the entersub here */	1225	/* normally we would need to skip the entersub here */
1127	/* not doing so will re-execute it, which is exactly what we want */	1226	/* not doing so will re-execute it, which is exactly what we want */
1128	/* PL_nop = PL_nop->op_next */	1227	/* PL_nop = PL_nop->op_next */
1129		1228
1130	/* inject a fake subroutine call to cctx_init */	1229	/* inject a fake subroutine call to cctx_init */
1131	cctx_prepare (aTHX_ (coro_cctx *)arg);	1230	cctx_prepare (aTHX);
1132		1231
1133	/* cctx_run is the alternative tail of transfer() */	1232	/* cctx_run is the alternative tail of transfer() */
1134	transfer_tail (aTHX);	1233	transfer_tail (aTHX);
1135		1234
1136	/* somebody or something will hit me for both perl_run and PL_restartop */	1235	/* somebody or something will hit me for both perl_run and PL_restartop */
1137	PL_restartop = PL_op;	1236	PL_restartop = PL_op;
1138	perl_run (PL_curinterp);	1237	perl_run (PL_curinterp);
		1238	/*
		1239	* Unfortunately, there is no way to get at the return values of the
		1240	* coro body here, as perl_run destroys these
		1241	*/
1139		1242
1140	/*	1243	/*
1141	* If perl-run returns we assume exit() was being called or the coro	1244	* If perl-run returns we assume exit() was being called or the coro
1142	* fell off the end, which seems to be the only valid (non-bug)	1245	* fell off the end, which seems to be the only valid (non-bug)
1143	* reason for perl_run to return. We try to exit by jumping to the	1246	* reason for perl_run to return. We try to exit by jumping to the
1144	* bootstrap-time "top" top_env, as we cannot restore the "main"	1247	* bootstrap-time "top" top_env, as we cannot restore the "main"
1145	* coroutine as Coro has no such concept	1248	* coroutine as Coro has no such concept.
		1249	* This actually isn't valid with the pthread backend, but OSes requiring
		1250	* that backend are too broken to do it in a standards-compliant way.
1146	*/	1251	*/
1147	PL_top_env = main_top_env;	1252	PL_top_env = main_top_env;
1148	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1253	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1149	}	1254	}
1150	}	1255	}
…		…
1227	cctx_destroy (coro_cctx *cctx)	1332	cctx_destroy (coro_cctx *cctx)
1228	{	1333	{
1229	if (!cctx)	1334	if (!cctx)
1230	return;	1335	return;
1231		1336
		1337	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
		1338
1232	--cctx_count;	1339	--cctx_count;
1233	coro_destroy (&cctx->cctx);	1340	coro_destroy (&cctx->cctx);
1234		1341
1235	/* coro_transfer creates new, empty cctx's */	1342	/* coro_transfer creates new, empty cctx's */
1236	if (cctx->sptr)	1343	if (cctx->sptr)
…		…
1299	/* TODO: throwing up here is considered harmful */	1406	/* TODO: throwing up here is considered harmful */
1300		1407
1301	if (expect_true (prev != next))	1408	if (expect_true (prev != next))
1302	{	1409	{
1303	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1410	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1304	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,");	1411	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1305		1412
1306	if (expect_false (next->flags & CF_RUNNING))
1307	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1308
1309	if (expect_false (next->flags & CF_DESTROYED))	1413	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1310	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,");	1414	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1311		1415
1312	#if !PERL_VERSION_ATLEAST (5,10,0)	1416	#if !PERL_VERSION_ATLEAST (5,10,0)
1313	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1417	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1314	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");	1418	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1315	#endif	1419	#endif
…		…
1321	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)	1425	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1322	{	1426	{
1323	dSTACKLEVEL;	1427	dSTACKLEVEL;
1324		1428
1325	/* sometimes transfer is only called to set idle_sp */	1429	/* sometimes transfer is only called to set idle_sp */
1326	if (expect_false (!next))	1430	if (expect_false (!prev))
1327	{	1431	{
1328	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1432	cctx_current->idle_sp = STACKLEVEL;
1329	assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */	1433	assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1330	}	1434	}
1331	else if (expect_true (prev != next))	1435	else if (expect_true (prev != next))
1332	{	1436	{
1333	coro_cctx *prev__cctx;	1437	coro_cctx *cctx_prev;
1334		1438
1335	if (expect_false (prev->flags & CF_NEW))	1439	if (expect_false (prev->flags & CF_NEW))
1336	{	1440	{
1337	/* create a new empty/source context */	1441	/* create a new empty/source context */
1338	prev->cctx = cctx_new_empty ();
1339	prev->flags &= ~CF_NEW;	1442	prev->flags &= ~CF_NEW;
1340	prev->flags |= CF_RUNNING;	1443	prev->flags |= CF_RUNNING;
1341	}	1444	}
1342		1445
1343	prev->flags &= ~CF_RUNNING;	1446	prev->flags &= ~CF_RUNNING;
…		…
1354	coro_setup (aTHX_ next);	1457	coro_setup (aTHX_ next);
1355	}	1458	}
1356	else	1459	else
1357	load_perl (aTHX_ next);	1460	load_perl (aTHX_ next);
1358		1461
1359	prev__cctx = prev->cctx;
1360
1361	/* possibly untie and reuse the cctx */	1462	/* possibly untie and reuse the cctx */
1362	if (expect_true (	1463	if (expect_true (
1363	prev__cctx->idle_sp == STACKLEVEL	1464	cctx_current->idle_sp == STACKLEVEL
1364	&& !(prev__cctx->flags & CC_TRACE)	1465	&& !(cctx_current->flags & CC_TRACE)
1365	&& !force_cctx	1466	&& !force_cctx
1366	))	1467	))
1367	{	1468	{
1368	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1469	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1369	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));	1470	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1370		1471
1371	prev->cctx = 0;
1372
1373	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1472	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1374	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1473	/* without this the next cctx_get might destroy the running cctx while still in use */
1375	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1474	if (expect_false (CCTX_EXPIRED (cctx_current)))
1376	if (!next->cctx)	1475	if (expect_true (!next->cctx))
1377	next->cctx = cctx_get (aTHX);	1476	next->cctx = cctx_get (aTHX);
1378		1477
1379	cctx_put (prev__cctx);	1478	cctx_put (cctx_current);
1380	}	1479	}
		1480	else
		1481	prev->cctx = cctx_current;
1381		1482
1382	++next->usecount;	1483	++next->usecount;
1383		1484
1384	if (expect_true (!next->cctx))	1485	cctx_prev = cctx_current;
1385	next->cctx = cctx_get (aTHX);	1486	cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1386		1487
1387	if (expect_false (prev__cctx != next->cctx))	1488	next->cctx = 0;
		1489
		1490	if (expect_false (cctx_prev != cctx_current))
1388	{	1491	{
1389	prev__cctx->top_env = PL_top_env;	1492	cctx_prev->top_env = PL_top_env;
1390	PL_top_env = next->cctx->top_env;	1493	PL_top_env = cctx_current->top_env;
1391	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1494	coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1392	}	1495	}
1393		1496
1394	transfer_tail (aTHX);	1497	transfer_tail (aTHX);
1395	}	1498	}
1396	}	1499	}
…		…
1404	coro_state_destroy (pTHX_ struct coro *coro)	1507	coro_state_destroy (pTHX_ struct coro *coro)
1405	{	1508	{
1406	if (coro->flags & CF_DESTROYED)	1509	if (coro->flags & CF_DESTROYED)
1407	return 0;	1510	return 0;
1408		1511
1409	if (coro->on_destroy)	1512	if (coro->on_destroy && !PL_dirty)
1410	coro->on_destroy (aTHX_ coro);	1513	coro->on_destroy (aTHX_ coro);
1411		1514
1412	coro->flags |= CF_DESTROYED;	1515	coro->flags |= CF_DESTROYED;
1413		1516
1414	if (coro->flags & CF_READY)	1517	if (coro->flags & CF_READY)
…		…
1418	--coro_nready;	1521	--coro_nready;
1419	}	1522	}
1420	else	1523	else
1421	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */	1524	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1422		1525
1423	if (coro->mainstack && coro->mainstack != main_mainstack)	1526	if (coro->mainstack
1424	{	1527	&& coro->mainstack != main_mainstack
1425	struct coro temp;	1528	&& coro->slot
1426		1529	&& !PL_dirty)
1427	assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1428
1429	save_perl (aTHX_ &temp);
1430	load_perl (aTHX_ coro);
1431
1432	coro_destruct (aTHX_ coro);	1530	coro_destruct_perl (aTHX_ coro);
1433
1434	load_perl (aTHX_ &temp);
1435
1436	coro->slot = 0;
1437	}
1438		1531
1439	cctx_destroy (coro->cctx);	1532	cctx_destroy (coro->cctx);
		1533	SvREFCNT_dec (coro->startcv);
1440	SvREFCNT_dec (coro->args);	1534	SvREFCNT_dec (coro->args);
		1535	SvREFCNT_dec (CORO_THROW);
1441		1536
1442	if (coro->next) coro->next->prev = coro->prev;	1537	if (coro->next) coro->next->prev = coro->prev;
1443	if (coro->prev) coro->prev->next = coro->next;	1538	if (coro->prev) coro->prev->next = coro->next;
1444	if (coro == coro_first) coro_first = coro->next;	1539	if (coro == coro_first) coro_first = coro->next;
1445		1540
…		…
1527	/** Coro ********************************************************************/	1622	/** Coro ********************************************************************/
1528		1623
1529	INLINE void	1624	INLINE void
1530	coro_enq (pTHX_ struct coro *coro)	1625	coro_enq (pTHX_ struct coro *coro)
1531	{	1626	{
1532	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1627	struct coro **ready = coro_ready [coro->prio - PRIO_MIN];
1533	}
1534		1628
1535	INLINE SV *	1629	SvREFCNT_inc_NN (coro->hv);
		1630
		1631	coro->next_ready = 0;
		1632	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
		1633	ready [1] = coro;
		1634	}
		1635
		1636	INLINE struct coro *
1536	coro_deq (pTHX)	1637	coro_deq (pTHX)
1537	{	1638	{
1538	int prio;	1639	int prio;
1539		1640
1540	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1641	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1541	if (AvFILLp (coro_ready [prio]) >= 0)	1642	{
1542	return av_shift (coro_ready [prio]);	1643	struct coro **ready = coro_ready [prio];
		1644
		1645	if (ready [0])
		1646	{
		1647	struct coro *coro = ready [0];
		1648	ready [0] = coro->next_ready;
		1649	return coro;
		1650	}
		1651	}
1543		1652
1544	return 0;	1653	return 0;
1545	}	1654	}
1546		1655
1547	static int	1656	static int
…		…
1549	{	1658	{
1550	struct coro *coro;	1659	struct coro *coro;
1551	SV *sv_hook;	1660	SV *sv_hook;
1552	void (*xs_hook)(void);	1661	void (*xs_hook)(void);
1553		1662
1554	if (SvROK (coro_sv))
1555	coro_sv = SvRV (coro_sv);
1556
1557	coro = SvSTATE (coro_sv);	1663	coro = SvSTATE (coro_sv);
1558		1664
1559	if (coro->flags & CF_READY)	1665	if (coro->flags & CF_READY)
1560	return 0;	1666	return 0;
1561		1667
…		…
1592	api_is_ready (pTHX_ SV *coro_sv)	1698	api_is_ready (pTHX_ SV *coro_sv)
1593	{	1699	{
1594	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1700	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1595	}	1701	}
1596		1702
		1703	/* expects to own a reference to next->hv */
1597	INLINE void	1704	INLINE void
1598	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1705	prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1599	{	1706	{
1600	SV *prev_sv, *next_sv;
1601
1602	for (;;)
1603	{
1604	next_sv = coro_deq (aTHX);
1605
1606	/* nothing to schedule: call the idle handler */
1607	if (expect_false (!next_sv))
1608	{
1609	dSP;
1610
1611	ENTER;
1612	SAVETMPS;
1613
1614	PUSHMARK (SP);
1615	PUTBACK;
1616	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1617
1618	FREETMPS;
1619	LEAVE;
1620	continue;
1621	}
1622
1623	ta->next = SvSTATE_hv (next_sv);
1624
1625	/* cannot transfer to destroyed coros, skip and look for next */
1626	if (expect_false (ta->next->flags & CF_DESTROYED))
1627	{
1628	SvREFCNT_dec (next_sv);
1629	/* coro_nready has already been taken care of by destroy */
1630	continue;
1631	}
1632
1633	--coro_nready;
1634	break;
1635	}
1636
1637	/* free this only after the transfer */
1638	prev_sv = SvRV (coro_current);	1707	SV *prev_sv = SvRV (coro_current);
		1708
1639	ta->prev = SvSTATE_hv (prev_sv);	1709	ta->prev = SvSTATE_hv (prev_sv);
		1710	ta->next = next;
		1711
1640	TRANSFER_CHECK (*ta);	1712	TRANSFER_CHECK (*ta);
1641	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));	1713
1642	ta->next->flags &= ~CF_READY;
1643	SvRV_set (coro_current, next_sv);	1714	SvRV_set (coro_current, (SV *)next->hv);
1644		1715
1645	free_coro_mortal (aTHX);	1716	free_coro_mortal (aTHX);
1646	coro_mortal = prev_sv;	1717	coro_mortal = prev_sv;
1647	}	1718	}
1648		1719
		1720	static void
		1721	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
		1722	{
		1723	for (;;)
		1724	{
		1725	struct coro *next = coro_deq (aTHX);
		1726
		1727	if (expect_true (next))
		1728	{
		1729	/* cannot transfer to destroyed coros, skip and look for next */
		1730	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
		1731	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
		1732	else
		1733	{
		1734	next->flags &= ~CF_READY;
		1735	--coro_nready;
		1736
		1737	prepare_schedule_to (aTHX_ ta, next);
		1738	break;
		1739	}
		1740	}
		1741	else
		1742	{
		1743	/* nothing to schedule: call the idle handler */
		1744	if (SvROK (sv_idle)
		1745	&& SvOBJECT (SvRV (sv_idle)))
		1746	{
		1747	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
		1748	api_ready (aTHX_ SvRV (sv_idle));
		1749	--coro_nready;
		1750	}
		1751	else
		1752	{
		1753	dSP;
		1754
		1755	ENTER;
		1756	SAVETMPS;
		1757
		1758	PUSHMARK (SP);
		1759	PUTBACK;
		1760	call_sv (sv_idle, G_VOID | G_DISCARD);
		1761
		1762	FREETMPS;
		1763	LEAVE;
		1764	}
		1765	}
		1766	}
		1767	}
		1768
1649	INLINE void	1769	INLINE void
1650	prepare_cede (pTHX_ struct coro_transfer_args *ta)	1770	prepare_cede (pTHX_ struct coro_transfer_args *ta)
1651	{	1771	{
1652	api_ready (aTHX_ coro_current);	1772	api_ready (aTHX_ coro_current);
1653	prepare_schedule (aTHX_ ta);	1773	prepare_schedule (aTHX_ ta);
…		…
1672	{	1792	{
1673	struct coro_transfer_args ta;	1793	struct coro_transfer_args ta;
1674		1794
1675	prepare_schedule (aTHX_ &ta);	1795	prepare_schedule (aTHX_ &ta);
1676	TRANSFER (ta, 1);	1796	TRANSFER (ta, 1);
		1797	}
		1798
		1799	static void
		1800	api_schedule_to (pTHX_ SV *coro_sv)
		1801	{
		1802	struct coro_transfer_args ta;
		1803	struct coro *next = SvSTATE (coro_sv);
		1804
		1805	SvREFCNT_inc_NN (coro_sv);
		1806	prepare_schedule_to (aTHX_ &ta, next);
1677	}	1807	}
1678		1808
1679	static int	1809	static int
1680	api_cede (pTHX)	1810	api_cede (pTHX)
1681	{	1811	{
…		…
1710	static void	1840	static void
1711	api_trace (pTHX_ SV *coro_sv, int flags)	1841	api_trace (pTHX_ SV *coro_sv, int flags)
1712	{	1842	{
1713	struct coro *coro = SvSTATE (coro_sv);	1843	struct coro *coro = SvSTATE (coro_sv);
1714		1844
		1845	if (coro->flags & CF_RUNNING)
		1846	croak ("cannot enable tracing on a running coroutine, caught");
		1847
1715	if (flags & CC_TRACE)	1848	if (flags & CC_TRACE)
1716	{	1849	{
1717	if (!coro->cctx)	1850	if (!coro->cctx)
1718	coro->cctx = cctx_new_run ();	1851	coro->cctx = cctx_new_run ();
1719	else if (!(coro->cctx->flags & CC_TRACE))	1852	else if (!(coro->cctx->flags & CC_TRACE))
1720	croak ("cannot enable tracing on coroutine with custom stack,");	1853	croak ("cannot enable tracing on coroutine with custom stack, caught");
1721		1854
1722	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));	1855	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1723	}	1856	}
1724	else if (coro->cctx && coro->cctx->flags & CC_TRACE)	1857	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1725	{	1858	{
…		…
1730	else	1863	else
1731	coro->slot->runops = RUNOPS_DEFAULT;	1864	coro->slot->runops = RUNOPS_DEFAULT;
1732	}	1865	}
1733	}	1866	}
1734		1867
		1868	static void
		1869	coro_call_on_destroy (pTHX_ struct coro *coro)
		1870	{
		1871	SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
		1872	SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
		1873
		1874	if (on_destroyp)
		1875	{
		1876	AV *on_destroy = (AV *)SvRV (*on_destroyp);
		1877
		1878	while (AvFILLp (on_destroy) >= 0)
		1879	{
		1880	dSP; /* don't disturb outer sp */
		1881	SV *cb = av_pop (on_destroy);
		1882
		1883	PUSHMARK (SP);
		1884
		1885	if (statusp)
		1886	{
		1887	int i;
		1888	AV *status = (AV *)SvRV (*statusp);
		1889	EXTEND (SP, AvFILLp (status) + 1);
		1890
		1891	for (i = 0; i <= AvFILLp (status); ++i)
		1892	PUSHs (AvARRAY (status)[i]);
		1893	}
		1894
		1895	PUTBACK;
		1896	call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
		1897	}
		1898	}
		1899	}
		1900
		1901	static void
		1902	slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1903	{
		1904	int i;
		1905	HV *hv = (HV *)SvRV (coro_current);
		1906	AV *av = newAV ();
		1907
		1908	av_extend (av, items - 1);
		1909	for (i = 0; i < items; ++i)
		1910	av_push (av, SvREFCNT_inc_NN (arg [i]));
		1911
		1912	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
		1913
		1914	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
		1915	api_ready (aTHX_ sv_manager);
		1916
		1917	frame->prepare = prepare_schedule;
		1918	frame->check = slf_check_repeat;
		1919
		1920	/* as a minor optimisation, we could unwind all stacks here */
		1921	/* but that puts extra pressure on pp_slf, and is not worth much */
		1922	/*coro_unwind_stacks (aTHX);*/
		1923	}
		1924
		1925	/*****************************************************************************/
		1926	/* async pool handler */
		1927
		1928	static int
		1929	slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
		1930	{
		1931	HV *hv = (HV *)SvRV (coro_current);
		1932	struct coro *coro = (struct coro *)frame->data;
		1933
		1934	if (!coro->invoke_cb)
		1935	return 1; /* loop till we have invoke */
		1936	else
		1937	{
		1938	hv_store (hv, "desc", sizeof ("desc") - 1,
		1939	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1940
		1941	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
		1942
		1943	{
		1944	dSP;
		1945	XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
		1946	PUTBACK;
		1947	}
		1948
		1949	SvREFCNT_dec (GvAV (PL_defgv));
		1950	GvAV (PL_defgv) = coro->invoke_av;
		1951	coro->invoke_av = 0;
		1952
		1953	return 0;
		1954	}
		1955	}
		1956
		1957	static void
		1958	slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1959	{
		1960	HV *hv = (HV *)SvRV (coro_current);
		1961	struct coro *coro = SvSTATE_hv ((SV *)hv);
		1962
		1963	if (expect_true (coro->saved_deffh))
		1964	{
		1965	/* subsequent iteration */
		1966	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
		1967	coro->saved_deffh = 0;
		1968
		1969	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
		1970	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1971	{
		1972	coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
		1973	coro->invoke_av = newAV ();
		1974
		1975	frame->prepare = prepare_nop;
		1976	}
		1977	else
		1978	{
		1979	av_clear (GvAV (PL_defgv));
		1980	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
		1981
		1982	coro->prio = 0;
		1983
		1984	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1985	api_trace (aTHX_ coro_current, 0);
		1986
		1987	frame->prepare = prepare_schedule;
		1988	av_push (av_async_pool, SvREFCNT_inc (hv));
		1989	}
		1990	}
		1991	else
		1992	{
		1993	/* first iteration, simply fall through */
		1994	frame->prepare = prepare_nop;
		1995	}
		1996
		1997	frame->check = slf_check_pool_handler;
		1998	frame->data = (void *)coro;
		1999	}
		2000
1735	/*****************************************************************************/	2001	/*****************************************************************************/
1736	/* rouse callback */	2002	/* rouse callback */
1737		2003
1738	#define CORO_MAGIC_type_rouse PERL_MAGIC_ext	2004	#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
1739		2005
…		…
1744	SV *data = (SV *)GENSUB_ARG;	2010	SV *data = (SV *)GENSUB_ARG;
1745		2011
1746	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2012	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1747	{	2013	{
1748	/* first call, set args */	2014	/* first call, set args */
1749	int i;	2015	SV *coro = SvRV (data);
1750	AV *av = newAV ();	2016	AV *av = newAV ();
1751	SV *coro = SvRV (data);
1752		2017
1753	SvRV_set (data, (SV *)av);	2018	SvRV_set (data, (SV *)av);
1754	api_ready (aTHX_ coro);
1755	SvREFCNT_dec (coro);
1756		2019
1757	/* better take a full copy of the arguments */	2020	/* better take a full copy of the arguments */
1758	while (items--)	2021	while (items--)
1759	av_store (av, items, newSVsv (ST (items)));	2022	av_store (av, items, newSVsv (ST (items)));
		2023
		2024	api_ready (aTHX_ coro);
		2025	SvREFCNT_dec (coro);
1760	}	2026	}
1761		2027
1762	XSRETURN_EMPTY;	2028	XSRETURN_EMPTY;
1763	}	2029	}
1764		2030
…		…
1781		2047
1782	EXTEND (SP, AvFILLp (av) + 1);	2048	EXTEND (SP, AvFILLp (av) + 1);
1783	for (i = 0; i <= AvFILLp (av); ++i)	2049	for (i = 0; i <= AvFILLp (av); ++i)
1784	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2050	PUSHs (sv_2mortal (AvARRAY (av)[i]));
1785		2051
1786	/* we have stolen the elements, so ste length to zero and free */	2052	/* we have stolen the elements, so set length to zero and free */
1787	AvFILLp (av) = -1;	2053	AvFILLp (av) = -1;
1788	av_undef (av);	2054	av_undef (av);
1789		2055
1790	PUTBACK;	2056	PUTBACK;
1791	}	2057	}
…		…
1895	static void	2161	static void
1896	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2162	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1897	{	2163	{
1898	frame->prepare = prepare_schedule;	2164	frame->prepare = prepare_schedule;
1899	frame->check = slf_check_nop;	2165	frame->check = slf_check_nop;
		2166	}
		2167
		2168	static void
		2169	slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
		2170	{
		2171	struct coro *next = (struct coro *)slf_frame.data;
		2172
		2173	SvREFCNT_inc_NN (next->hv);
		2174	prepare_schedule_to (aTHX_ ta, next);
		2175	}
		2176
		2177	static void
		2178	slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2179	{
		2180	if (!items)
		2181	croak ("Coro::schedule_to expects a coroutine argument, caught");
		2182
		2183	frame->data = (void *)SvSTATE (arg [0]);
		2184	frame->prepare = slf_prepare_schedule_to;
		2185	frame->check = slf_check_nop;
		2186	}
		2187
		2188	static void
		2189	slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2190	{
		2191	api_ready (aTHX_ SvRV (coro_current));
		2192
		2193	slf_init_schedule_to (aTHX_ frame, cv, arg, items);
1900	}	2194	}
1901		2195
1902	static void	2196	static void
1903	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2197	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1904	{	2198	{
…		…
2050	}	2344	}
2051	else	2345	else
2052	slf_argc = 0;	2346	slf_argc = 0;
2053		2347
2054	PL_op->op_ppaddr = pp_slf;	2348	PL_op->op_ppaddr = pp_slf;
2055	PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */	2349	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2056		2350
2057	PL_op = (OP *)&slf_restore;	2351	PL_op = (OP *)&slf_restore;
		2352	}
		2353
		2354	/*****************************************************************************/
		2355	/* dynamic wind */
		2356
		2357	static void
		2358	on_enterleave_call (pTHX_ SV *cb)
		2359	{
		2360	dSP;
		2361
		2362	PUSHSTACK;
		2363
		2364	PUSHMARK (SP);
		2365	PUTBACK;
		2366	call_sv (cb, G_VOID | G_DISCARD);
		2367	SPAGAIN;
		2368
		2369	POPSTACK;
		2370	}
		2371
		2372	static SV *
		2373	coro_avp_pop_and_free (pTHX_ AV **avp)
		2374	{
		2375	AV *av = *avp;
		2376	SV *res = av_pop (av);
		2377
		2378	if (AvFILLp (av) < 0)
		2379	{
		2380	*avp = 0;
		2381	SvREFCNT_dec (av);
		2382	}
		2383
		2384	return res;
		2385	}
		2386
		2387	static void
		2388	coro_pop_on_enter (pTHX_ void *coro)
		2389	{
		2390	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
		2391	SvREFCNT_dec (cb);
		2392	}
		2393
		2394	static void
		2395	coro_pop_on_leave (pTHX_ void *coro)
		2396	{
		2397	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
		2398	on_enterleave_call (aTHX_ sv_2mortal (cb));
2058	}	2399	}
2059		2400
2060	/*****************************************************************************/	2401	/*****************************************************************************/
2061	/* PerlIO::cede */	2402	/* PerlIO::cede */
2062		2403
…		…
2143	SV **ary;	2484	SV **ary;
2144		2485
2145	/* unfortunately, building manually saves memory */	2486	/* unfortunately, building manually saves memory */
2146	Newx (ary, 2, SV *);	2487	Newx (ary, 2, SV *);
2147	AvALLOC (av) = ary;	2488	AvALLOC (av) = ary;
		2489	#if PERL_VERSION_ATLEAST (5,10,0)
2148	/*AvARRAY (av) = ary;*/	2490	AvARRAY (av) = ary;
		2491	#else
2149	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */	2492	/* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
		2493	/* -DDEBUGGING flags this as a bug, despite it perfectly working */
		2494	SvPVX ((SV *)av) = (char *)ary;
		2495	#endif
2150	AvMAX (av) = 1;	2496	AvMAX (av) = 1;
2151	AvFILLp (av) = 0;	2497	AvFILLp (av) = 0;
2152	ary [0] = newSViv (count);	2498	ary [0] = newSViv (count);
2153		2499
2154	return newRV_noinc ((SV *)av);	2500	return newRV_noinc ((SV *)av);
…		…
2283	{	2629	{
2284	if (items >= 2)	2630	if (items >= 2)
2285	{	2631	{
2286	/* callback form */	2632	/* callback form */
2287	AV *av = (AV *)SvRV (arg [0]);	2633	AV *av = (AV *)SvRV (arg [0]);
2288	HV *st;	2634	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2289	GV *gvp;
2290	CV *cb_cv = sv_2cv (arg [1], &st, &gvp, 0);
2291		2635
2292	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2636	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2293		2637
2294	if (SvIVX (AvARRAY (av)[0]) > 0)	2638	if (SvIVX (AvARRAY (av)[0]) > 0)
2295	coro_semaphore_adjust (aTHX_ av, 0);	2639	coro_semaphore_adjust (aTHX_ av, 0);
…		…
2381	dXSARGS;	2725	dXSARGS;
2382	AV *state = (AV *)GENSUB_ARG;	2726	AV *state = (AV *)GENSUB_ARG;
2383	SV *coro = av_pop (state);	2727	SV *coro = av_pop (state);
2384	SV *data_sv = newSV (sizeof (struct io_state));	2728	SV *data_sv = newSV (sizeof (struct io_state));
2385		2729
2386	av_extend (state, items);	2730	av_extend (state, items - 1);
2387		2731
2388	sv_upgrade (data_sv, SVt_PV);	2732	sv_upgrade (data_sv, SVt_PV);
2389	SvCUR_set (data_sv, sizeof (struct io_state));	2733	SvCUR_set (data_sv, sizeof (struct io_state));
2390	SvPOK_only (data_sv);	2734	SvPOK_only (data_sv);
2391		2735
…		…
2526	XSRETURN_EMPTY;	2870	XSRETURN_EMPTY;
2527	}	2871	}
2528		2872
2529	/*****************************************************************************/	2873	/*****************************************************************************/
2530		2874
		2875	#if CORO_CLONE
		2876	# include "clone.c"
		2877	#endif
		2878
2531	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	2879	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2532		2880
2533	PROTOTYPES: DISABLE	2881	PROTOTYPES: DISABLE
2534		2882
2535	BOOT:	2883	BOOT:
…		…
2539	coro_thx = PERL_GET_CONTEXT;	2887	coro_thx = PERL_GET_CONTEXT;
2540	# endif	2888	# endif
2541	#endif	2889	#endif
2542	BOOT_PAGESIZE;	2890	BOOT_PAGESIZE;
2543		2891
		2892	cctx_current = cctx_new_empty ();
		2893
2544	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);	2894	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2545	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);	2895	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2546		2896
2547	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;	2897	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2548	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;	2898	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
…		…
2567		2917
2568	{	2918	{
2569	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));	2919	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2570		2920
2571	if (!PL_custom_op_names) PL_custom_op_names = newHV ();	2921	if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2572	hv_store_ent (PL_custom_op_names, slf,	2922	hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2573	newSVpv ("coro_slf", 0), 0);
2574		2923
2575	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();	2924	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2576	hv_store_ent (PL_custom_op_descs, slf,	2925	hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2577	newSVpv ("coro schedule like function", 0), 0);
2578	}	2926	}
2579		2927
2580	coroapi.ver = CORO_API_VERSION;	2928	coroapi.ver = CORO_API_VERSION;
2581	coroapi.rev = CORO_API_REVISION;	2929	coroapi.rev = CORO_API_REVISION;
2582		2930
…		…
2601	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2949	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
2602	}	2950	}
2603		2951
2604	SV *	2952	SV *
2605	new (char *klass, ...)	2953	new (char *klass, ...)
		2954	ALIAS:
		2955	Coro::new = 1
2606	CODE:	2956	CODE:
2607	{	2957	{
2608	struct coro *coro;	2958	struct coro *coro;
2609	MAGIC *mg;	2959	MAGIC *mg;
2610	HV *hv;	2960	HV *hv;
		2961	CV *cb;
2611	int i;	2962	int i;
		2963
		2964	if (items > 1)
		2965	{
		2966	cb = coro_sv_2cv (aTHX_ ST (1));
		2967
		2968	if (!ix)
		2969	{
		2970	if (CvISXSUB (cb))
		2971	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		2972
		2973	if (!CvROOT (cb))
		2974	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		2975	}
		2976	}
2612		2977
2613	Newz (0, coro, 1, struct coro);	2978	Newz (0, coro, 1, struct coro);
2614	coro->args = newAV ();	2979	coro->args = newAV ();
2615	coro->flags = CF_NEW;	2980	coro->flags = CF_NEW;
2616		2981
…		…
2621	coro->hv = hv = newHV ();	2986	coro->hv = hv = newHV ();
2622	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);	2987	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2623	mg->mg_flags |= MGf_DUP;	2988	mg->mg_flags |= MGf_DUP;
2624	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	2989	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2625		2990
		2991	if (items > 1)
		2992	{
2626	av_extend (coro->args, items - 1);	2993	av_extend (coro->args, items - 1 + ix - 1);
		2994
		2995	if (ix)
		2996	{
		2997	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		2998	cb = cv_coro_run;
		2999	}
		3000
		3001	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		3002
2627	for (i = 1; i < items; i++)	3003	for (i = 2; i < items; i++)
2628	av_push (coro->args, newSVsv (ST (i)));	3004	av_push (coro->args, newSVsv (ST (i)));
		3005	}
2629	}	3006	}
2630	OUTPUT:	3007	OUTPUT:
2631	RETVAL	3008	RETVAL
2632		3009
2633	void	3010	void
…		…
2646	void	3023	void
2647	_exit (int code)	3024	_exit (int code)
2648	PROTOTYPE: $	3025	PROTOTYPE: $
2649	CODE:	3026	CODE:
2650	_exit (code);	3027	_exit (code);
		3028
		3029	SV *
		3030	clone (Coro::State coro)
		3031	CODE:
		3032	{
		3033	#if CORO_CLONE
		3034	struct coro *ncoro = coro_clone (aTHX_ coro);
		3035	MAGIC *mg;
		3036	/* TODO: too much duplication */
		3037	ncoro->hv = newHV ();
		3038	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
		3039	mg->mg_flags |= MGf_DUP;
		3040	RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
		3041	#else
		3042	croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
		3043	#endif
		3044	}
		3045	OUTPUT:
		3046	RETVAL
2651		3047
2652	int	3048	int
2653	cctx_stacksize (int new_stacksize = 0)	3049	cctx_stacksize (int new_stacksize = 0)
2654	PROTOTYPE: ;$	3050	PROTOTYPE: ;$
2655	CODE:	3051	CODE:
…		…
2705	eval = 1	3101	eval = 1
2706	CODE:	3102	CODE:
2707	{	3103	{
2708	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3104	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2709	{	3105	{
2710	struct coro temp;	3106	struct coro *current = SvSTATE_current;
2711		3107
2712	if (!(coro->flags & CF_RUNNING))	3108	if (current != coro)
2713	{	3109	{
2714	PUTBACK;	3110	PUTBACK;
2715	save_perl (aTHX_ &temp);	3111	save_perl (aTHX_ current);
2716	load_perl (aTHX_ coro);	3112	load_perl (aTHX_ coro);
		3113	SPAGAIN;
2717	}	3114	}
2718		3115
2719	{
2720	dSP;
2721	ENTER;
2722	SAVETMPS;
2723	PUTBACK;
2724	PUSHSTACK;	3116	PUSHSTACK;
		3117
2725	PUSHMARK (SP);	3118	PUSHMARK (SP);
		3119	PUTBACK;
2726		3120
2727	if (ix)	3121	if (ix)
2728	eval_sv (coderef, 0);	3122	eval_sv (coderef, 0);
2729	else	3123	else
2730	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3124	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2731		3125
2732	POPSTACK;	3126	POPSTACK;
2733	SPAGAIN;	3127	SPAGAIN;
2734	FREETMPS;
2735	LEAVE;
2736	PUTBACK;
2737	}
2738		3128
2739	if (!(coro->flags & CF_RUNNING))	3129	if (current != coro)
2740	{	3130	{
		3131	PUTBACK;
2741	save_perl (aTHX_ coro);	3132	save_perl (aTHX_ coro);
2742	load_perl (aTHX_ &temp);	3133	load_perl (aTHX_ current);
2743	SPAGAIN;	3134	SPAGAIN;
2744	}	3135	}
2745	}	3136	}
2746	}	3137	}
2747		3138
…		…
2751	ALIAS:	3142	ALIAS:
2752	is_ready = CF_READY	3143	is_ready = CF_READY
2753	is_running = CF_RUNNING	3144	is_running = CF_RUNNING
2754	is_new = CF_NEW	3145	is_new = CF_NEW
2755	is_destroyed = CF_DESTROYED	3146	is_destroyed = CF_DESTROYED
		3147	is_suspended = CF_SUSPENDED
2756	CODE:	3148	CODE:
2757	RETVAL = boolSV (coro->flags & ix);	3149	RETVAL = boolSV (coro->flags & ix);
2758	OUTPUT:	3150	OUTPUT:
2759	RETVAL	3151	RETVAL
2760		3152
…		…
2776		3168
2777	SV *	3169	SV *
2778	has_cctx (Coro::State coro)	3170	has_cctx (Coro::State coro)
2779	PROTOTYPE: $	3171	PROTOTYPE: $
2780	CODE:	3172	CODE:
2781	RETVAL = boolSV (!!coro->cctx);	3173	/* maybe manage the running flag differently */
		3174	RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2782	OUTPUT:	3175	OUTPUT:
2783	RETVAL	3176	RETVAL
2784		3177
2785	int	3178	int
2786	is_traced (Coro::State coro)	3179	is_traced (Coro::State coro)
…		…
2806		3199
2807	void	3200	void
2808	force_cctx ()	3201	force_cctx ()
2809	PROTOTYPE:	3202	PROTOTYPE:
2810	CODE:	3203	CODE:
2811	SvSTATE_current->cctx->idle_sp = 0;	3204	cctx_current->idle_sp = 0;
2812		3205
2813	void	3206	void
2814	swap_defsv (Coro::State self)	3207	swap_defsv (Coro::State self)
2815	PROTOTYPE: $	3208	PROTOTYPE: $
2816	ALIAS:	3209	ALIAS:
…		…
2824	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;	3217	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2825		3218
2826	SV *tmp = *src; *src = *dst; *dst = tmp;	3219	SV *tmp = *src; *src = *dst; *dst = tmp;
2827	}	3220	}
2828		3221
		3222	void
		3223	cancel (Coro::State self)
		3224	CODE:
		3225	coro_state_destroy (aTHX_ self);
		3226	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3227
2829		3228
2830	MODULE = Coro::State PACKAGE = Coro	3229	MODULE = Coro::State PACKAGE = Coro
2831		3230
2832	BOOT:	3231	BOOT:
2833	{	3232	{
2834	int i;
2835
2836	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2837	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3233	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2838	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3234	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2839		3235	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
		3236	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2840	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);	3237	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2841	SvREADONLY_on (coro_current);	3238	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		3239	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
		3240	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3241	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
		3242
		3243	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
		3244	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
		3245	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
		3246	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2842		3247
2843	coro_stash = gv_stashpv ("Coro", TRUE);	3248	coro_stash = gv_stashpv ("Coro", TRUE);
2844		3249
2845	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3250	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
2846	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3251	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
2847	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3252	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
2848	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3253	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
2849	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3254	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
2850	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3255	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
2851		3256
2852	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
2853	coro_ready[i] = newAV ();
2854
2855	{	3257	{
2856	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3258	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2857		3259
2858	coroapi.schedule = api_schedule;	3260	coroapi.schedule = api_schedule;
		3261	coroapi.schedule_to = api_schedule_to;
2859	coroapi.cede = api_cede;	3262	coroapi.cede = api_cede;
2860	coroapi.cede_notself = api_cede_notself;	3263	coroapi.cede_notself = api_cede_notself;
2861	coroapi.ready = api_ready;	3264	coroapi.ready = api_ready;
2862	coroapi.is_ready = api_is_ready;	3265	coroapi.is_ready = api_is_ready;
2863	coroapi.nready = coro_nready;	3266	coroapi.nready = coro_nready;
…		…
2868	SvREADONLY_on (sv);	3271	SvREADONLY_on (sv);
2869	}	3272	}
2870	}	3273	}
2871		3274
2872	void	3275	void
		3276	terminate (...)
		3277	CODE:
		3278	CORO_EXECUTE_SLF_XS (slf_init_terminate);
		3279
		3280	void
2873	schedule (...)	3281	schedule (...)
2874	CODE:	3282	CODE:
2875	CORO_EXECUTE_SLF_XS (slf_init_schedule);	3283	CORO_EXECUTE_SLF_XS (slf_init_schedule);
		3284
		3285	void
		3286	schedule_to (...)
		3287	CODE:
		3288	CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
		3289
		3290	void
		3291	cede_to (...)
		3292	CODE:
		3293	CORO_EXECUTE_SLF_XS (slf_init_cede_to);
2876		3294
2877	void	3295	void
2878	cede (...)	3296	cede (...)
2879	CODE:	3297	CODE:
2880	CORO_EXECUTE_SLF_XS (slf_init_cede);	3298	CORO_EXECUTE_SLF_XS (slf_init_cede);
…		…
2935	CODE:	3353	CODE:
2936	RETVAL = coro_nready;	3354	RETVAL = coro_nready;
2937	OUTPUT:	3355	OUTPUT:
2938	RETVAL	3356	RETVAL
2939		3357
2940	# for async_pool speedup
2941	void	3358	void
2942	_pool_1 (SV *cb)	3359	suspend (Coro::State self)
		3360	PROTOTYPE: $
2943	CODE:	3361	CODE:
2944	{	3362	self->flags |= CF_SUSPENDED;
2945	HV *hv = (HV *)SvRV (coro_current);
2946	struct coro *coro = SvSTATE_hv ((SV *)hv);
2947	AV *defav = GvAV (PL_defgv);
2948	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2949	AV *invoke_av;
2950	int i, len;
2951		3363
2952	if (!invoke)	3364	void
		3365	resume (Coro::State self)
		3366	PROTOTYPE: $
		3367	CODE:
		3368	self->flags &= ~CF_SUSPENDED;
		3369
		3370	void
		3371	_pool_handler (...)
		3372	CODE:
		3373	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
		3374
		3375	void
		3376	async_pool (SV *cv, ...)
		3377	PROTOTYPE: &@
		3378	PPCODE:
		3379	{
		3380	HV *hv = (HV *)av_pop (av_async_pool);
		3381	AV *av = newAV ();
		3382	SV *cb = ST (0);
		3383	int i;
		3384
		3385	av_extend (av, items - 2);
		3386	for (i = 1; i < items; ++i)
		3387	av_push (av, SvREFCNT_inc_NN (ST (i)));
		3388
		3389	if ((SV *)hv == &PL_sv_undef)
2953	{	3390	{
2954	SV *old = PL_diehook;	3391	PUSHMARK (SP);
2955	PL_diehook = 0;	3392	EXTEND (SP, 2);
2956	SvREFCNT_dec (old);	3393	PUSHs (sv_Coro);
2957	croak ("\3async_pool terminate\2\n");	3394	PUSHs ((SV *)cv_pool_handler);
		3395	PUTBACK;
		3396	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
		3397	SPAGAIN;
		3398
		3399	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
2958	}	3400	}
2959		3401
2960	SvREFCNT_dec (coro->saved_deffh);
2961	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2962
2963	hv_store (hv, "desc", sizeof ("desc") - 1,
2964	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2965
2966	invoke_av = (AV *)SvRV (invoke);
2967	len = av_len (invoke_av);
2968
2969	sv_setsv (cb, AvARRAY (invoke_av)[0]);
2970
2971	if (len > 0)
2972	{	3402	{
2973	av_fill (defav, len - 1);	3403	struct coro *coro = SvSTATE_hv (hv);
2974	for (i = 0; i < len; ++i)	3404
2975	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));	3405	assert (!coro->invoke_cb);
		3406	assert (!coro->invoke_av);
		3407	coro->invoke_cb = SvREFCNT_inc (cb);
		3408	coro->invoke_av = av;
2976	}	3409	}
2977	}
2978		3410
2979	void	3411	api_ready (aTHX_ (SV *)hv);
2980	_pool_2 (SV *cb)
2981	CODE:
2982	{
2983	HV *hv = (HV *)SvRV (coro_current);
2984	struct coro *coro = SvSTATE_hv ((SV *)hv);
2985		3412
2986	sv_setsv (cb, &PL_sv_undef);	3413	if (GIMME_V != G_VOID)
2987		3414	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
2988	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;	3415	else
2989	coro->saved_deffh = 0;
2990
2991	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2992	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2993	{
2994	SV *old = PL_diehook;
2995	PL_diehook = 0;
2996	SvREFCNT_dec (old);	3416	SvREFCNT_dec (hv);
2997	croak ("\3async_pool terminate\2\n");
2998	}
2999
3000	av_clear (GvAV (PL_defgv));
3001	hv_store (hv, "desc", sizeof ("desc") - 1,
3002	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
3003
3004	coro->prio = 0;
3005
3006	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
3007	api_trace (aTHX_ coro_current, 0);
3008
3009	av_push (av_async_pool, newSVsv (coro_current));
3010	}	3417	}
3011		3418
3012	SV *	3419	SV *
3013	rouse_cb ()	3420	rouse_cb ()
3014	PROTOTYPE:	3421	PROTOTYPE:
…		…
3020	void	3427	void
3021	rouse_wait (...)	3428	rouse_wait (...)
3022	PROTOTYPE: ;$	3429	PROTOTYPE: ;$
3023	PPCODE:	3430	PPCODE:
3024	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3431	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
		3432
		3433	void
		3434	on_enter (SV *block)
		3435	ALIAS:
		3436	on_leave = 1
		3437	PROTOTYPE: &
		3438	CODE:
		3439	{
		3440	struct coro *coro = SvSTATE_current;
		3441	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3442
		3443	block = (SV *)coro_sv_2cv (aTHX_ block);
		3444
		3445	if (!*avp)
		3446	*avp = newAV ();
		3447
		3448	av_push (*avp, SvREFCNT_inc (block));
		3449
		3450	if (!ix)
		3451	on_enterleave_call (aTHX_ block);
		3452
		3453	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3454	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3455	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3456	}
3025		3457
3026		3458
3027	MODULE = Coro::State PACKAGE = PerlIO::cede	3459	MODULE = Coro::State PACKAGE = PerlIO::cede
3028		3460
3029	BOOT:	3461	BOOT:
…		…
3040	GvSTASH (CvGV (cv))	3472	GvSTASH (CvGV (cv))
3041	);	3473	);
3042	OUTPUT:	3474	OUTPUT:
3043	RETVAL	3475	RETVAL
3044		3476
3045	# helper for Coro::Channel	3477	# helper for Coro::Channel and others
3046	SV *	3478	SV *
3047	_alloc (int count)	3479	_alloc (int count)
3048	CODE:	3480	CODE:
3049	RETVAL = coro_waitarray_new (aTHX_ count);	3481	RETVAL = coro_waitarray_new (aTHX_ count);
3050	OUTPUT:	3482	OUTPUT:
…		…
3108	for (i = 1; i <= wcount; ++i)	3540	for (i = 1; i <= wcount; ++i)
3109	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3541	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3110	}	3542	}
3111	}	3543	}
3112		3544
		3545	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3546
		3547	void
		3548	_may_delete (SV *sem, int count, int extra_refs)
		3549	PPCODE:
		3550	{
		3551	AV *av = (AV *)SvRV (sem);
		3552
		3553	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3554	&& AvFILLp (av) == 0 /* no waiters, just count */
		3555	&& SvIV (AvARRAY (av)[0]) == count)
		3556	XSRETURN_YES;
		3557
		3558	XSRETURN_NO;
		3559	}
		3560
3113	MODULE = Coro::State PACKAGE = Coro::Signal	3561	MODULE = Coro::State PACKAGE = Coro::Signal
3114		3562
3115	SV *	3563	SV *
3116	new (SV *klass)	3564	new (SV *klass)
3117	CODE:	3565	CODE:
…		…
3188		3636
3189	void	3637	void
3190	_register (char *target, char *proto, SV *req)	3638	_register (char *target, char *proto, SV *req)
3191	CODE:	3639	CODE:
3192	{	3640	{
3193	HV *st;	3641	CV *req_cv = coro_sv_2cv (aTHX_ req);
3194	GV *gvp;
3195	CV *req_cv = sv_2cv (req, &st, &gvp, 0);
3196	/* newXSproto doesn't return the CV on 5.8 */	3642	/* newXSproto doesn't return the CV on 5.8 */
3197	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3643	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3198	sv_setpv ((SV *)slf_cv, proto);	3644	sv_setpv ((SV *)slf_cv, proto);
3199	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3645	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3200	}	3646	}

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