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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.316 by root, Thu Nov 20 06:01:40 2008 UTC vs.
Revision 1.348 by root, Wed Jun 10 00:20:26 2009 UTC

…		…
101	# define CvISXSUB_on(cv) (void)cv	101	# define CvISXSUB_on(cv) (void)cv
102	#endif	102	#endif
103	#ifndef CvISXSUB	103	#ifndef CvISXSUB
104	# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)	104	# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105	#endif	105	#endif
		106	#ifndef Newx
		107	# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
		108	#endif
106		109
107	/* 5.8.7 */	110	/* 5.8.7 */
108	#ifndef SvRV_set	111	#ifndef SvRV_set
109	# define SvRV_set(s,v) SvRV(s) = (v)	112	# define SvRV_set(s,v) SvRV(s) = (v)
110	#endif	113	#endif
…		…
130	#else	133	#else
131	# define dSTACKLEVEL volatile void *stacklevel	134	# define dSTACKLEVEL volatile void *stacklevel
132	# define STACKLEVEL ((void *)&stacklevel)	135	# define STACKLEVEL ((void *)&stacklevel)
133	#endif	136	#endif
134		137
135	#define IN_DESTRUCT (PL_main_cv == Nullcv)	138	#define IN_DESTRUCT PL_dirty
136		139
137	#if __GNUC__ >= 3	140	#if __GNUC__ >= 3
138	# define attribute(x) __attribute__(x)	141	# define attribute(x) __attribute__(x)
139	# define expect(expr,value) __builtin_expect ((expr),(value))	142	# define expect(expr,value) __builtin_expect ((expr),(value))
140	# define INLINE static inline	143	# define INLINE static inline
…		…
170	static AV *main_mainstack; /* used to differentiate between $main and others */	173	static AV *main_mainstack; /* used to differentiate between $main and others */
171	static JMPENV *main_top_env;	174	static JMPENV *main_top_env;
172	static HV *coro_state_stash, *coro_stash;	175	static HV *coro_state_stash, *coro_stash;
173	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 */
174		177
		178	static AV *av_destroy; /* destruction queue */
		179	static SV *sv_manager; /* the manager coro */
		180	static SV *sv_idle; /* $Coro::idle */
		181
175	static GV *irsgv; /* $/ */	182	static GV *irsgv; /* $/ */
176	static GV *stdoutgv; /* *STDOUT */	183	static GV *stdoutgv; /* *STDOUT */
177	static SV *rv_diehook;	184	static SV *rv_diehook;
178	static SV *rv_warnhook;	185	static SV *rv_warnhook;
179	static HV *hv_sig; /* %SIG */	186	static HV *hv_sig; /* %SIG */
180		187
181	/* async_pool helper stuff */	188	/* async_pool helper stuff */
182	static SV *sv_pool_rss;	189	static SV *sv_pool_rss;
183	static SV *sv_pool_size;	190	static SV *sv_pool_size;
184	static SV *sv_async_pool_idle;	191	static SV *sv_async_pool_idle; /* description string */
185	static AV *av_async_pool;	192	static AV *av_async_pool; /* idle pool */
186	static SV *sv_Coro;	193	static SV *sv_Coro; /* class string */
187	static CV *cv_pool_handler;	194	static CV *cv_pool_handler;
188	static CV *cv_coro_state_new;	195	static CV *cv_coro_state_new;
189		196
190	/* Coro::AnyEvent */	197	/* Coro::AnyEvent */
191	static SV *sv_activity;	198	static SV *sv_activity;
…		…
222	int valgrind_id;	229	int valgrind_id;
223	#endif	230	#endif
224	unsigned char flags;	231	unsigned char flags;
225	} coro_cctx;	232	} coro_cctx;
226		233
		234	coro_cctx *cctx_current; /* the currently running cctx */
		235
		236	/*****************************************************************************/
		237
227	enum {	238	enum {
228	CF_RUNNING = 0x0001, /* coroutine is running */	239	CF_RUNNING = 0x0001, /* coroutine is running */
229	CF_READY = 0x0002, /* coroutine is ready */	240	CF_READY = 0x0002, /* coroutine is ready */
230	CF_NEW = 0x0004, /* has never been switched to */	241	CF_NEW = 0x0004, /* has never been switched to */
231	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 */
232	};	244	};
233		245
234	/* 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 */
235	typedef struct	247	typedef struct
236	{	248	{
237	SV *defsv;	249	SV *defsv;
238	AV *defav;	250	AV *defav;
239	SV *errsv;	251	SV *errsv;
240	SV *irsgv;	252	SV *irsgv;
		253	HV *hinthv;
241	#define VAR(name,type) type name;	254	#define VAR(name,type) type name;
242	# include "state.h"	255	# include "state.h"
243	#undef VAR	256	#undef VAR
244	} perl_slots;	257	} perl_slots;
245		258
…		…
247		260
248	/* this is a structure representing a perl-level coroutine */	261	/* this is a structure representing a perl-level coroutine */
249	struct coro {	262	struct coro {
250	/* the C coroutine allocated to this perl coroutine, if any */	263	/* the C coroutine allocated to this perl coroutine, if any */
251	coro_cctx *cctx;	264	coro_cctx *cctx;
		265
		266	/* ready queue */
		267	struct coro *next_ready;
252		268
253	/* state data */	269	/* state data */
254	struct CoroSLF slf_frame; /* saved slf frame */	270	struct CoroSLF slf_frame; /* saved slf frame */
255	AV *mainstack;	271	AV *mainstack;
256	perl_slots *slot; /* basically the saved sp */	272	perl_slots *slot; /* basically the saved sp */
…		…
273	/* async_pool */	289	/* async_pool */
274	SV *saved_deffh;	290	SV *saved_deffh;
275	SV *invoke_cb;	291	SV *invoke_cb;
276	AV *invoke_av;	292	AV *invoke_av;
277		293
		294	/* on_enter/on_leave */
		295	AV *on_enter;
		296	AV *on_leave;
		297
278	/* linked list */	298	/* linked list */
279	struct coro *next, *prev;	299	struct coro *next, *prev;
280	};	300	};
281		301
282	typedef struct coro *Coro__State;	302	typedef struct coro *Coro__State;
…		…
297	#define PRIO_MIN -4	317	#define PRIO_MIN -4
298		318
299	/* for Coro.pm */	319	/* for Coro.pm */
300	static SV *coro_current;	320	static SV *coro_current;
301	static SV *coro_readyhook;	321	static SV *coro_readyhook;
302	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	322	static struct coro *coro_ready [PRIO_MAX - PRIO_MIN + 1][2]; /* head|tail */
303	static CV *cv_coro_run, *cv_coro_terminate;	323	static CV *cv_coro_run, *cv_coro_terminate;
304	static struct coro *coro_first;	324	static struct coro *coro_first;
305	#define coro_nready coroapi.nready	325	#define coro_nready coroapi.nready
306		326
307	/** lowlevel stuff **********************************************************/	327	/** lowlevel stuff **********************************************************/
…		…
340	INLINE CV *	360	INLINE CV *
341	coro_sv_2cv (pTHX_ SV *sv)	361	coro_sv_2cv (pTHX_ SV *sv)
342	{	362	{
343	HV *st;	363	HV *st;
344	GV *gvp;	364	GV *gvp;
345	return sv_2cv (sv, &st, &gvp, 0);	365	CV *cv = sv_2cv (sv, &st, &gvp, 0);
		366
		367	if (!cv)
		368	croak ("code reference expected");
		369
		370	return cv;
346	}	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 */
347		424
348	static AV *	425	static AV *
349	coro_clone_padlist (pTHX_ CV *cv)	426	coro_derive_padlist (pTHX_ CV *cv)
350	{	427	{
351	AV *padlist = CvPADLIST (cv);	428	AV *padlist = CvPADLIST (cv);
352	AV *newpadlist, *newpad;	429	AV *newpadlist, *newpad;
353		430
354	newpadlist = newAV ();	431	newpadlist = newAV ();
…		…
359	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	436	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
360	#endif	437	#endif
361	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	438	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
362	--AvFILLp (padlist);	439	--AvFILLp (padlist);
363		440
364	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));	441	av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
365	av_store (newpadlist, 1, (SV *)newpad);	442	av_store (newpadlist, 1, (SV *)newpad);
366		443
367	return newpadlist;	444	return newpadlist;
368	}	445	}
369		446
370	static void	447	static void
371	free_padlist (pTHX_ AV *padlist)	448	free_padlist (pTHX_ AV *padlist)
372	{	449	{
373	/* may be during global destruction */	450	/* may be during global destruction */
374	if (SvREFCNT (padlist))	451	if (!IN_DESTRUCT)
375	{	452	{
376	I32 i = AvFILLp (padlist);	453	I32 i = AvFILLp (padlist);
377	while (i >= 0)	454
		455	while (i > 0) /* special-case index 0 */
378	{	456	{
379	SV **svp = av_fetch (padlist, i--, FALSE);	457	/* we try to be extra-careful here */
380	if (svp)	458	AV *av = (AV *)AvARRAY (padlist)[i--];
381	{	459	I32 j = AvFILLp (av);
382	SV *sv;	460
383	while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))	461	while (j >= 0)
		462	SvREFCNT_dec (AvARRAY (av)[j--]);
		463
		464	AvFILLp (av) = -1;
384	SvREFCNT_dec (sv);	465	SvREFCNT_dec (av);
385
386	SvREFCNT_dec (*svp);
387	}
388	}	466	}
389		467
		468	SvREFCNT_dec (AvARRAY (padlist)[0]);
		469
		470	AvFILLp (padlist) = -1;
390	SvREFCNT_dec ((SV*)padlist);	471	SvREFCNT_dec ((SV*)padlist);
391	}	472	}
392	}	473	}
393		474
394	static int	475	static int
…		…
403		484
404	SvREFCNT_dec (av); /* sv_magicext increased the refcount */	485	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
405		486
406	return 0;	487	return 0;
407	}	488	}
408
409	#define CORO_MAGIC_type_cv 26
410	#define CORO_MAGIC_type_state PERL_MAGIC_ext
411		489
412	static MGVTBL coro_cv_vtbl = {	490	static MGVTBL coro_cv_vtbl = {
413	0, 0, 0, 0,	491	0, 0, 0, 0,
414	coro_cv_free	492	coro_cv_free
415	};	493	};
416
417	#define CORO_MAGIC_NN(sv, type) \
418	(expect_true (SvMAGIC (sv)->mg_type == type) \
419	? SvMAGIC (sv) \
420	: mg_find (sv, type))
421
422	#define CORO_MAGIC(sv, type) \
423	(expect_true (SvMAGIC (sv)) \
424	? CORO_MAGIC_NN (sv, type) \
425	: 0)
426
427	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
428	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
429
430	INLINE struct coro *
431	SvSTATE_ (pTHX_ SV *coro)
432	{
433	HV *stash;
434	MAGIC *mg;
435
436	if (SvROK (coro))
437	coro = SvRV (coro);
438
439	if (expect_false (SvTYPE (coro) != SVt_PVHV))
440	croak ("Coro::State object required");
441
442	stash = SvSTASH (coro);
443	if (expect_false (stash != coro_stash && stash != coro_state_stash))
444	{
445	/* very slow, but rare, check */
446	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
447	croak ("Coro::State object required");
448	}
449
450	mg = CORO_MAGIC_state (coro);
451	return (struct coro *)mg->mg_ptr;
452	}
453
454	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
455
456	/* faster than SvSTATE, but expects a coroutine hv */
457	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
458	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
459		494
460	/* the next two functions merely cache the padlists */	495	/* the next two functions merely cache the padlists */
461	static void	496	static void
462	get_padlist (pTHX_ CV *cv)	497	get_padlist (pTHX_ CV *cv)
463	{	498	{
…		…
474	CV *cp = Perl_cv_clone (aTHX_ cv);	509	CV *cp = Perl_cv_clone (aTHX_ cv);
475	CvPADLIST (cv) = CvPADLIST (cp);	510	CvPADLIST (cv) = CvPADLIST (cp);
476	CvPADLIST (cp) = 0;	511	CvPADLIST (cp) = 0;
477	SvREFCNT_dec (cp);	512	SvREFCNT_dec (cp);
478	#else	513	#else
479	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	514	CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
480	#endif	515	#endif
481	}	516	}
482	}	517	}
483		518
484	static void	519	static void
…		…
491	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);
492		527
493	av = (AV *)mg->mg_obj;	528	av = (AV *)mg->mg_obj;
494		529
495	if (expect_false (AvFILLp (av) >= AvMAX (av)))	530	if (expect_false (AvFILLp (av) >= AvMAX (av)))
496	av_extend (av, AvMAX (av) + 1);	531	av_extend (av, AvFILLp (av) + 1);
497		532
498	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	533	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
499	}	534	}
500		535
501	/** load & save, init *******************************************************/	536	/** load & save, init *******************************************************/
		537
		538	static void
		539	on_enterleave_call (pTHX_ SV *cb);
502		540
503	static void	541	static void
504	load_perl (pTHX_ Coro__State c)	542	load_perl (pTHX_ Coro__State c)
505	{	543	{
506	perl_slots *slot = c->slot;	544	perl_slots *slot = c->slot;
507	c->slot = 0;	545	c->slot = 0;
508		546
509	PL_mainstack = c->mainstack;	547	PL_mainstack = c->mainstack;
510		548
511	GvSV (PL_defgv) = slot->defsv;	549	GvSV (PL_defgv) = slot->defsv;
512	GvAV (PL_defgv) = slot->defav;	550	GvAV (PL_defgv) = slot->defav;
513	GvSV (PL_errgv) = slot->errsv;	551	GvSV (PL_errgv) = slot->errsv;
514	GvSV (irsgv) = slot->irsgv;	552	GvSV (irsgv) = slot->irsgv;
		553	GvHV (PL_hintgv) = slot->hinthv;
515		554
516	#define VAR(name,type) PL_ ## name = slot->name;	555	#define VAR(name,type) PL_ ## name = slot->name;
517	# include "state.h"	556	# include "state.h"
518	#undef VAR	557	#undef VAR
519		558
…		…
533	PUTBACK;	572	PUTBACK;
534	}	573	}
535		574
536	slf_frame = c->slf_frame;	575	slf_frame = c->slf_frame;
537	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	}
538	}	585	}
539		586
540	static void	587	static void
541	save_perl (pTHX_ Coro__State c)	588	save_perl (pTHX_ Coro__State c)
542	{	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
543	c->except = CORO_THROW;	598	c->except = CORO_THROW;
544	c->slf_frame = slf_frame;	599	c->slf_frame = slf_frame;
545		600
546	{	601	{
547	dSP;	602	dSP;
…		…
605	c->mainstack = PL_mainstack;	660	c->mainstack = PL_mainstack;
606		661
607	{	662	{
608	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	663	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
609		664
610	slot->defav = GvAV (PL_defgv);	665	slot->defav = GvAV (PL_defgv);
611	slot->defsv = DEFSV;	666	slot->defsv = DEFSV;
612	slot->errsv = ERRSV;	667	slot->errsv = ERRSV;
613	slot->irsgv = GvSV (irsgv);	668	slot->irsgv = GvSV (irsgv);
		669	slot->hinthv = GvHV (PL_hintgv);
614		670
615	#define VAR(name,type) slot->name = PL_ ## name;	671	#define VAR(name,type) slot->name = PL_ ## name;
616	# include "state.h"	672	# include "state.h"
617	#undef VAR	673	#undef VAR
618	}	674	}
…		…
745	#endif	801	#endif
746		802
747	/*	803	/*
748	* This overrides the default magic get method of %SIG elements.	804	* This overrides the default magic get method of %SIG elements.
749	* 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
750	* 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
751	* readback here.	807	* readback here.
752	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
753	* not expecting this to actually change the hook. This is a potential problem
754	* when a schedule happens then, but we ignore this.
755	*/	808	*/
756	static int	809	static int
757	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	810	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
758	{	811	{
759	const char *s = MgPV_nolen_const (mg);	812	const char *s = MgPV_nolen_const (mg);
…		…
812	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	865	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
813		866
814	if (svp)	867	if (svp)
815	{	868	{
816	SV *old = *svp;	869	SV *old = *svp;
817	*svp = newSVsv (sv);	870	*svp = SvOK (sv) ? newSVsv (sv) : 0;
818	SvREFCNT_dec (old);	871	SvREFCNT_dec (old);
819	return 0;	872	return 0;
820	}	873	}
821	}	874	}
822		875
…		…
832		885
833	static int	886	static int
834	slf_check_nop (pTHX_ struct CoroSLF *frame)	887	slf_check_nop (pTHX_ struct CoroSLF *frame)
835	{	888	{
836	return 0;	889	return 0;
		890	}
		891
		892	static int
		893	slf_check_repeat (pTHX_ struct CoroSLF *frame)
		894	{
		895	return 1;
837	}	896	}
838		897
839	static UNOP coro_setup_op;	898	static UNOP coro_setup_op;
840		899
841	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 */
…		…
848		907
849	PL_runops = RUNOPS_DEFAULT;	908	PL_runops = RUNOPS_DEFAULT;
850	PL_curcop = &PL_compiling;	909	PL_curcop = &PL_compiling;
851	PL_in_eval = EVAL_NULL;	910	PL_in_eval = EVAL_NULL;
852	PL_comppad = 0;	911	PL_comppad = 0;
		912	PL_comppad_name = 0;
		913	PL_comppad_name_fill = 0;
		914	PL_comppad_name_floor = 0;
853	PL_curpm = 0;	915	PL_curpm = 0;
854	PL_curpad = 0;	916	PL_curpad = 0;
855	PL_localizing = 0;	917	PL_localizing = 0;
856	PL_dirty = 0;	918	PL_dirty = 0;
857	PL_restartop = 0;	919	PL_restartop = 0;
858	#if PERL_VERSION_ATLEAST (5,10,0)	920	#if PERL_VERSION_ATLEAST (5,10,0)
859	PL_parser = 0;	921	PL_parser = 0;
860	#endif	922	#endif
		923	PL_hints = 0;
861		924
862	/* recreate the die/warn hooks */	925	/* recreate the die/warn hooks */
863	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 );
864	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);
865		928
866	GvSV (PL_defgv) = newSV (0);	929	GvSV (PL_defgv) = newSV (0);
867	GvAV (PL_defgv) = coro->args; coro->args = 0;	930	GvAV (PL_defgv) = coro->args; coro->args = 0;
868	GvSV (PL_errgv) = newSV (0);	931	GvSV (PL_errgv) = newSV (0);
869	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;
870	PL_rs = newSVsv (GvSV (irsgv));	934	PL_rs = newSVsv (GvSV (irsgv));
871	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	935	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
872		936
873	{	937	{
874	dSP;	938	dSP;
…		…
892	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 */
893	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 */
894		958
895	/* 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 */
896	coro_setup_op.op_next = PL_op;	960	coro_setup_op.op_next = PL_op;
897	coro_setup_op.op_type = OP_CUSTOM;	961	coro_setup_op.op_type = OP_ENTERSUB;
898	coro_setup_op.op_ppaddr = pp_slf;	962	coro_setup_op.op_ppaddr = pp_slf;
899	/* no flags etc. required, as an init function won't be called */	963	/* no flags etc. required, as an init function won't be called */
900		964
901	PL_op = (OP *)&coro_setup_op;	965	PL_op = (OP *)&coro_setup_op;
902		966
903	/* copy throw, in case it was set before coro_setup */	967	/* copy throw, in case it was set before coro_setup */
904	CORO_THROW = coro->except;	968	CORO_THROW = coro->except;
905	}	969	}
906		970
907	static void	971	static void
908	coro_destruct (pTHX_ struct coro *coro)	972	coro_unwind_stacks (pTHX)
909	{	973	{
910	if (!IN_DESTRUCT)	974	if (!IN_DESTRUCT)
911	{	975	{
912	/* restore all saved variables and stuff */	976	/* restore all saved variables and stuff */
913	LEAVE_SCOPE (0);	977	LEAVE_SCOPE (0);
…		…
921	POPSTACK_TO (PL_mainstack);	985	POPSTACK_TO (PL_mainstack);
922		986
923	/* unwind main stack */	987	/* unwind main stack */
924	dounwind (-1);	988	dounwind (-1);
925	}	989	}
		990	}
		991
		992	static void
		993	coro_destruct_perl (pTHX_ struct coro *coro)
		994	{
		995	coro_unwind_stacks (aTHX);
926		996
927	SvREFCNT_dec (GvSV (PL_defgv));	997	SvREFCNT_dec (GvSV (PL_defgv));
928	SvREFCNT_dec (GvAV (PL_defgv));	998	SvREFCNT_dec (GvAV (PL_defgv));
929	SvREFCNT_dec (GvSV (PL_errgv));	999	SvREFCNT_dec (GvSV (PL_errgv));
930	SvREFCNT_dec (PL_defoutgv);	1000	SvREFCNT_dec (PL_defoutgv);
931	SvREFCNT_dec (PL_rs);	1001	SvREFCNT_dec (PL_rs);
932	SvREFCNT_dec (GvSV (irsgv));	1002	SvREFCNT_dec (GvSV (irsgv));
		1003	SvREFCNT_dec (GvHV (PL_hintgv));
933		1004
934	SvREFCNT_dec (PL_diehook);	1005	SvREFCNT_dec (PL_diehook);
935	SvREFCNT_dec (PL_warnhook);	1006	SvREFCNT_dec (PL_warnhook);
936		1007
937	SvREFCNT_dec (coro->saved_deffh);	1008	SvREFCNT_dec (coro->saved_deffh);
…		…
955	static int	1026	static int
956	runops_trace (pTHX)	1027	runops_trace (pTHX)
957	{	1028	{
958	COP *oldcop = 0;	1029	COP *oldcop = 0;
959	int oldcxix = -2;	1030	int oldcxix = -2;
960	struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
961	coro_cctx *cctx = coro->cctx;
962		1031
963	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))	1032	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
964	{	1033	{
965	PERL_ASYNC_CHECK ();	1034	PERL_ASYNC_CHECK ();
966		1035
967	if (cctx->flags & CC_TRACE_ALL)	1036	if (cctx_current->flags & CC_TRACE_ALL)
968	{	1037	{
969	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)	1038	if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
970	{	1039	{
971	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1040	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
972	SV **bot, **top;	1041	SV **bot, **top;
973	AV *av = newAV (); /* return values */	1042	AV *av = newAV (); /* return values */
974	SV **cb;	1043	SV **cb;
…		…
1011		1080
1012	if (PL_curcop != &PL_compiling)	1081	if (PL_curcop != &PL_compiling)
1013	{	1082	{
1014	SV **cb;	1083	SV **cb;
1015		1084
1016	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)	1085	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1017	{	1086	{
1018	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1087	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1019		1088
1020	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1089	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1021	{	1090	{
1022	runops_proc_t old_runops = PL_runops;
1023	dSP;	1091	dSP;
1024	GV *gv = CvGV (cx->blk_sub.cv);	1092	GV *gv = CvGV (cx->blk_sub.cv);
1025	SV *fullname = sv_2mortal (newSV (0));	1093	SV *fullname = sv_2mortal (newSV (0));
1026		1094
1027	if (isGV (gv))	1095	if (isGV (gv))
…		…
1045	}	1113	}
1046		1114
1047	oldcxix = cxstack_ix;	1115	oldcxix = cxstack_ix;
1048	}	1116	}
1049		1117
1050	if (cctx->flags & CC_TRACE_LINE)	1118	if (cctx_current->flags & CC_TRACE_LINE)
1051	{	1119	{
1052	dSP;	1120	dSP;
1053		1121
1054	PL_runops = RUNOPS_DEFAULT;	1122	PL_runops = RUNOPS_DEFAULT;
1055	ENTER;	1123	ENTER;
…		…
1074		1142
1075	TAINT_NOT;	1143	TAINT_NOT;
1076	return 0;	1144	return 0;
1077	}	1145	}
1078		1146
1079	static struct coro_cctx *cctx_ssl_cctx;
1080	static struct CoroSLF cctx_ssl_frame;	1147	static struct CoroSLF cctx_ssl_frame;
1081		1148
1082	static void	1149	static void
1083	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)	1150	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1084	{	1151	{
1085	ta->prev = (struct coro *)cctx_ssl_cctx;
1086	ta->next = 0;	1152	ta->prev = 0;
1087	}	1153	}
1088		1154
1089	static int	1155	static int
1090	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)	1156	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1091	{	1157	{
…		…
1094	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */	1160	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1095	}	1161	}
1096		1162
1097	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */	1163	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1098	static void NOINLINE	1164	static void NOINLINE
1099	cctx_prepare (pTHX_ coro_cctx *cctx)	1165	cctx_prepare (pTHX)
1100	{	1166	{
1101	PL_top_env = &PL_start_env;	1167	PL_top_env = &PL_start_env;
1102		1168
1103	if (cctx->flags & CC_TRACE)	1169	if (cctx_current->flags & CC_TRACE)
1104	PL_runops = runops_trace;	1170	PL_runops = runops_trace;
1105		1171
1106	/* we already must be executing an SLF op, there is no other valid way	1172	/* we already must be executing an SLF op, there is no other valid way
1107	* that can lead to creation of a new cctx */	1173	* that can lead to creation of a new cctx */
1108	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",	1174	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1109	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));	1175	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1110		1176
1111	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */	1177	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1112	cctx_ssl_cctx = cctx;
1113	cctx_ssl_frame = slf_frame;	1178	cctx_ssl_frame = slf_frame;
1114		1179
1115	slf_frame.prepare = slf_prepare_set_stacklevel;	1180	slf_frame.prepare = slf_prepare_set_stacklevel;
1116	slf_frame.check = slf_check_set_stacklevel;	1181	slf_frame.check = slf_check_set_stacklevel;
1117	}	1182	}
…		…
1140	/* normally we would need to skip the entersub here */	1205	/* normally we would need to skip the entersub here */
1141	/* not doing so will re-execute it, which is exactly what we want */	1206	/* not doing so will re-execute it, which is exactly what we want */
1142	/* PL_nop = PL_nop->op_next */	1207	/* PL_nop = PL_nop->op_next */
1143		1208
1144	/* inject a fake subroutine call to cctx_init */	1209	/* inject a fake subroutine call to cctx_init */
1145	cctx_prepare (aTHX_ (coro_cctx *)arg);	1210	cctx_prepare (aTHX);
1146		1211
1147	/* cctx_run is the alternative tail of transfer() */	1212	/* cctx_run is the alternative tail of transfer() */
1148	transfer_tail (aTHX);	1213	transfer_tail (aTHX);
1149		1214
1150	/* somebody or something will hit me for both perl_run and PL_restartop */	1215	/* somebody or something will hit me for both perl_run and PL_restartop */
…		…
1158	/*	1223	/*
1159	* If perl-run returns we assume exit() was being called or the coro	1224	* If perl-run returns we assume exit() was being called or the coro
1160	* fell off the end, which seems to be the only valid (non-bug)	1225	* fell off the end, which seems to be the only valid (non-bug)
1161	* reason for perl_run to return. We try to exit by jumping to the	1226	* reason for perl_run to return. We try to exit by jumping to the
1162	* bootstrap-time "top" top_env, as we cannot restore the "main"	1227	* bootstrap-time "top" top_env, as we cannot restore the "main"
1163	* coroutine as Coro has no such concept	1228	* coroutine as Coro has no such concept.
		1229	* This actually isn't valid with the pthread backend, but OSes requiring
		1230	* that backend are too broken to do it in a standards-compliant way.
1164	*/	1231	*/
1165	PL_top_env = main_top_env;	1232	PL_top_env = main_top_env;
1166	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1233	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1167	}	1234	}
1168	}	1235	}
…		…
1245	cctx_destroy (coro_cctx *cctx)	1312	cctx_destroy (coro_cctx *cctx)
1246	{	1313	{
1247	if (!cctx)	1314	if (!cctx)
1248	return;	1315	return;
1249		1316
		1317	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
		1318
1250	--cctx_count;	1319	--cctx_count;
1251	coro_destroy (&cctx->cctx);	1320	coro_destroy (&cctx->cctx);
1252		1321
1253	/* coro_transfer creates new, empty cctx's */	1322	/* coro_transfer creates new, empty cctx's */
1254	if (cctx->sptr)	1323	if (cctx->sptr)
…		…
1317	/* TODO: throwing up here is considered harmful */	1386	/* TODO: throwing up here is considered harmful */
1318		1387
1319	if (expect_true (prev != next))	1388	if (expect_true (prev != next))
1320	{	1389	{
1321	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1390	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1322	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,");	1391	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1323		1392
1324	if (expect_false (next->flags & CF_RUNNING))
1325	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1326
1327	if (expect_false (next->flags & CF_DESTROYED))	1393	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1328	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,");	1394	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1329		1395
1330	#if !PERL_VERSION_ATLEAST (5,10,0)	1396	#if !PERL_VERSION_ATLEAST (5,10,0)
1331	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1397	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1332	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");	1398	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1333	#endif	1399	#endif
…		…
1339	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)	1405	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1340	{	1406	{
1341	dSTACKLEVEL;	1407	dSTACKLEVEL;
1342		1408
1343	/* sometimes transfer is only called to set idle_sp */	1409	/* sometimes transfer is only called to set idle_sp */
1344	if (expect_false (!next))	1410	if (expect_false (!prev))
1345	{	1411	{
1346	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1412	cctx_current->idle_sp = STACKLEVEL;
1347	assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */	1413	assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1348	}	1414	}
1349	else if (expect_true (prev != next))	1415	else if (expect_true (prev != next))
1350	{	1416	{
1351	coro_cctx *prev__cctx;	1417	coro_cctx *cctx_prev;
1352		1418
1353	if (expect_false (prev->flags & CF_NEW))	1419	if (expect_false (prev->flags & CF_NEW))
1354	{	1420	{
1355	/* create a new empty/source context */	1421	/* create a new empty/source context */
1356	prev->cctx = cctx_new_empty ();
1357	prev->flags &= ~CF_NEW;	1422	prev->flags &= ~CF_NEW;
1358	prev->flags |= CF_RUNNING;	1423	prev->flags |= CF_RUNNING;
1359	}	1424	}
1360		1425
1361	prev->flags &= ~CF_RUNNING;	1426	prev->flags &= ~CF_RUNNING;
…		…
1372	coro_setup (aTHX_ next);	1437	coro_setup (aTHX_ next);
1373	}	1438	}
1374	else	1439	else
1375	load_perl (aTHX_ next);	1440	load_perl (aTHX_ next);
1376		1441
1377	prev__cctx = prev->cctx;
1378
1379	/* possibly untie and reuse the cctx */	1442	/* possibly untie and reuse the cctx */
1380	if (expect_true (	1443	if (expect_true (
1381	prev__cctx->idle_sp == STACKLEVEL	1444	cctx_current->idle_sp == STACKLEVEL
1382	&& !(prev__cctx->flags & CC_TRACE)	1445	&& !(cctx_current->flags & CC_TRACE)
1383	&& !force_cctx	1446	&& !force_cctx
1384	))	1447	))
1385	{	1448	{
1386	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1449	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1387	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));	1450	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1388		1451
1389	prev->cctx = 0;
1390
1391	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1452	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1392	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1453	/* without this the next cctx_get might destroy the running cctx while still in use */
1393	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1454	if (expect_false (CCTX_EXPIRED (cctx_current)))
1394	if (!next->cctx)	1455	if (expect_true (!next->cctx))
1395	next->cctx = cctx_get (aTHX);	1456	next->cctx = cctx_get (aTHX);
1396		1457
1397	cctx_put (prev__cctx);	1458	cctx_put (cctx_current);
1398	}	1459	}
		1460	else
		1461	prev->cctx = cctx_current;
1399		1462
1400	++next->usecount;	1463	++next->usecount;
1401		1464
1402	if (expect_true (!next->cctx))	1465	cctx_prev = cctx_current;
1403	next->cctx = cctx_get (aTHX);	1466	cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1404		1467
1405	if (expect_false (prev__cctx != next->cctx))	1468	next->cctx = 0;
		1469
		1470	if (expect_false (cctx_prev != cctx_current))
1406	{	1471	{
1407	prev__cctx->top_env = PL_top_env;	1472	cctx_prev->top_env = PL_top_env;
1408	PL_top_env = next->cctx->top_env;	1473	PL_top_env = cctx_current->top_env;
1409	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1474	coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1410	}	1475	}
1411		1476
1412	transfer_tail (aTHX);	1477	transfer_tail (aTHX);
1413	}	1478	}
1414	}	1479	}
…		…
1422	coro_state_destroy (pTHX_ struct coro *coro)	1487	coro_state_destroy (pTHX_ struct coro *coro)
1423	{	1488	{
1424	if (coro->flags & CF_DESTROYED)	1489	if (coro->flags & CF_DESTROYED)
1425	return 0;	1490	return 0;
1426		1491
1427	if (coro->on_destroy)	1492	if (coro->on_destroy && !PL_dirty)
1428	coro->on_destroy (aTHX_ coro);	1493	coro->on_destroy (aTHX_ coro);
1429		1494
1430	coro->flags |= CF_DESTROYED;	1495	coro->flags |= CF_DESTROYED;
1431		1496
1432	if (coro->flags & CF_READY)	1497	if (coro->flags & CF_READY)
…		…
1436	--coro_nready;	1501	--coro_nready;
1437	}	1502	}
1438	else	1503	else
1439	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */	1504	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1440		1505
1441	if (coro->mainstack && coro->mainstack != main_mainstack)	1506	if (coro->mainstack
		1507	&& coro->mainstack != main_mainstack
		1508	&& coro->slot
		1509	&& !PL_dirty)
1442	{	1510	{
1443	struct coro temp;	1511	struct coro *current = SvSTATE_current;
1444		1512
1445	assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));	1513	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1446		1514
1447	save_perl (aTHX_ &temp);	1515	save_perl (aTHX_ current);
1448	load_perl (aTHX_ coro);	1516	load_perl (aTHX_ coro);
1449		1517
1450	coro_destruct (aTHX_ coro);	1518	coro_destruct_perl (aTHX_ coro);
1451		1519
1452	load_perl (aTHX_ &temp);	1520	load_perl (aTHX_ current);
1453		1521
1454	coro->slot = 0;	1522	coro->slot = 0;
1455	}	1523	}
1456		1524
1457	cctx_destroy (coro->cctx);	1525	cctx_destroy (coro->cctx);
…		…
1547	/** Coro ********************************************************************/	1615	/** Coro ********************************************************************/
1548		1616
1549	INLINE void	1617	INLINE void
1550	coro_enq (pTHX_ struct coro *coro)	1618	coro_enq (pTHX_ struct coro *coro)
1551	{	1619	{
1552	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1620	struct coro **ready = coro_ready [coro->prio - PRIO_MIN];
1553	}
1554		1621
1555	INLINE SV *	1622	SvREFCNT_inc_NN (coro->hv);
		1623
		1624	coro->next_ready = 0;
		1625	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
		1626	ready [1] = coro;
		1627	}
		1628
		1629	INLINE struct coro *
1556	coro_deq (pTHX)	1630	coro_deq (pTHX)
1557	{	1631	{
1558	int prio;	1632	int prio;
1559		1633
1560	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1634	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1561	if (AvFILLp (coro_ready [prio]) >= 0)	1635	{
1562	return av_shift (coro_ready [prio]);	1636	struct coro **ready = coro_ready [prio];
		1637
		1638	if (ready [0])
		1639	{
		1640	struct coro *coro = ready [0];
		1641	ready [0] = coro->next_ready;
		1642	return coro;
		1643	}
		1644	}
1563		1645
1564	return 0;	1646	return 0;
1565	}	1647	}
1566		1648
1567	static int	1649	static int
…		…
1569	{	1651	{
1570	struct coro *coro;	1652	struct coro *coro;
1571	SV *sv_hook;	1653	SV *sv_hook;
1572	void (*xs_hook)(void);	1654	void (*xs_hook)(void);
1573		1655
1574	if (SvROK (coro_sv))
1575	coro_sv = SvRV (coro_sv);
1576
1577	coro = SvSTATE (coro_sv);	1656	coro = SvSTATE (coro_sv);
1578		1657
1579	if (coro->flags & CF_READY)	1658	if (coro->flags & CF_READY)
1580	return 0;	1659	return 0;
1581		1660
…		…
1614	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1693	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1615	}	1694	}
1616		1695
1617	/* expects to own a reference to next->hv */	1696	/* expects to own a reference to next->hv */
1618	INLINE void	1697	INLINE void
1619	prepare_cede_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)	1698	prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1620	{	1699	{
1621	SV *prev_sv = SvRV (coro_current);	1700	SV *prev_sv = SvRV (coro_current);
1622		1701
1623	ta->prev = SvSTATE_hv (prev_sv);	1702	ta->prev = SvSTATE_hv (prev_sv);
1624	ta->next = next;	1703	ta->next = next;
1625		1704
1626	TRANSFER_CHECK (*ta);	1705	TRANSFER_CHECK (*ta);
1627		1706
1628	SvRV_set (coro_current, next->hv);	1707	SvRV_set (coro_current, (SV *)next->hv);
1629		1708
1630	free_coro_mortal (aTHX);	1709	free_coro_mortal (aTHX);
1631	coro_mortal = prev_sv;	1710	coro_mortal = prev_sv;
1632	}	1711	}
1633		1712
1634	static void	1713	static void
1635	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1714	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1636	{	1715	{
1637	for (;;)	1716	for (;;)
1638	{	1717	{
1639	SV *next_sv = coro_deq (aTHX);	1718	struct coro *next = coro_deq (aTHX);
1640		1719
1641	if (expect_false (!next_sv))	1720	if (expect_true (next))
1642	{	1721	{
1643	/* nothing to schedule: call the idle handler */
1644	dSP;
1645
1646	ENTER;
1647	SAVETMPS;
1648
1649	PUSHMARK (SP);
1650	PUTBACK;
1651	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1652
1653	FREETMPS;
1654	LEAVE;
1655	}
1656	else
1657	{
1658	struct coro *next = SvSTATE_hv (next_sv);
1659
1660	/* cannot transfer to destroyed coros, skip and look for next */	1722	/* cannot transfer to destroyed coros, skip and look for next */
1661	if (expect_false (next->flags & CF_DESTROYED))	1723	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1662	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */	1724	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1663	else	1725	else
1664	{	1726	{
1665	next->flags &= ~CF_READY;	1727	next->flags &= ~CF_READY;
1666	--coro_nready;	1728	--coro_nready;
1667		1729
1668	return prepare_cede_to (aTHX_ ta, next);	1730	prepare_schedule_to (aTHX_ ta, next);
		1731	break;
1669	}	1732	}
1670	}	1733	}
		1734	else
		1735	{
		1736	/* nothing to schedule: call the idle handler */
		1737	if (SvROK (sv_idle)
		1738	&& SvOBJECT (SvRV (sv_idle)))
		1739	{
		1740	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
		1741	api_ready (aTHX_ SvRV (sv_idle));
		1742	--coro_nready;
		1743	}
		1744	else
		1745	{
		1746	dSP;
		1747
		1748	ENTER;
		1749	SAVETMPS;
		1750
		1751	PUSHMARK (SP);
		1752	PUTBACK;
		1753	call_sv (sv_idle, G_VOID | G_DISCARD);
		1754
		1755	FREETMPS;
		1756	LEAVE;
		1757	}
		1758	}
1671	}	1759	}
1672	}	1760	}
1673		1761
1674	INLINE void	1762	INLINE void
1675	prepare_cede (pTHX_ struct coro_transfer_args *ta)	1763	prepare_cede (pTHX_ struct coro_transfer_args *ta)
…		…
1697	{	1785	{
1698	struct coro_transfer_args ta;	1786	struct coro_transfer_args ta;
1699		1787
1700	prepare_schedule (aTHX_ &ta);	1788	prepare_schedule (aTHX_ &ta);
1701	TRANSFER (ta, 1);	1789	TRANSFER (ta, 1);
		1790	}
		1791
		1792	static void
		1793	api_schedule_to (pTHX_ SV *coro_sv)
		1794	{
		1795	struct coro_transfer_args ta;
		1796	struct coro *next = SvSTATE (coro_sv);
		1797
		1798	SvREFCNT_inc_NN (coro_sv);
		1799	prepare_schedule_to (aTHX_ &ta, next);
1702	}	1800	}
1703		1801
1704	static int	1802	static int
1705	api_cede (pTHX)	1803	api_cede (pTHX)
1706	{	1804	{
…		…
1735	static void	1833	static void
1736	api_trace (pTHX_ SV *coro_sv, int flags)	1834	api_trace (pTHX_ SV *coro_sv, int flags)
1737	{	1835	{
1738	struct coro *coro = SvSTATE (coro_sv);	1836	struct coro *coro = SvSTATE (coro_sv);
1739		1837
		1838	if (coro->flags & CF_RUNNING)
		1839	croak ("cannot enable tracing on a running coroutine, caught");
		1840
1740	if (flags & CC_TRACE)	1841	if (flags & CC_TRACE)
1741	{	1842	{
1742	if (!coro->cctx)	1843	if (!coro->cctx)
1743	coro->cctx = cctx_new_run ();	1844	coro->cctx = cctx_new_run ();
1744	else if (!(coro->cctx->flags & CC_TRACE))	1845	else if (!(coro->cctx->flags & CC_TRACE))
1745	croak ("cannot enable tracing on coroutine with custom stack,");	1846	croak ("cannot enable tracing on coroutine with custom stack, caught");
1746		1847
1747	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));	1848	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1748	}	1849	}
1749	else if (coro->cctx && coro->cctx->flags & CC_TRACE)	1850	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1750	{	1851	{
…		…
1753	if (coro->flags & CF_RUNNING)	1854	if (coro->flags & CF_RUNNING)
1754	PL_runops = RUNOPS_DEFAULT;	1855	PL_runops = RUNOPS_DEFAULT;
1755	else	1856	else
1756	coro->slot->runops = RUNOPS_DEFAULT;	1857	coro->slot->runops = RUNOPS_DEFAULT;
1757	}	1858	}
		1859	}
		1860
		1861	static void
		1862	coro_call_on_destroy (pTHX_ struct coro *coro)
		1863	{
		1864	SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
		1865	SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
		1866
		1867	if (on_destroyp)
		1868	{
		1869	AV *on_destroy = (AV *)SvRV (*on_destroyp);
		1870
		1871	while (AvFILLp (on_destroy) >= 0)
		1872	{
		1873	dSP; /* don't disturb outer sp */
		1874	SV *cb = av_pop (on_destroy);
		1875
		1876	PUSHMARK (SP);
		1877
		1878	if (statusp)
		1879	{
		1880	int i;
		1881	AV *status = (AV *)SvRV (*statusp);
		1882	EXTEND (SP, AvFILLp (status) + 1);
		1883
		1884	for (i = 0; i <= AvFILLp (status); ++i)
		1885	PUSHs (AvARRAY (status)[i]);
		1886	}
		1887
		1888	PUTBACK;
		1889	call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
		1890	}
		1891	}
		1892	}
		1893
		1894	static void
		1895	slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1896	{
		1897	int i;
		1898	HV *hv = (HV *)SvRV (coro_current);
		1899	AV *av = newAV ();
		1900
		1901	av_extend (av, items - 1);
		1902	for (i = 0; i < items; ++i)
		1903	av_push (av, SvREFCNT_inc_NN (arg [i]));
		1904
		1905	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
		1906
		1907	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
		1908	api_ready (aTHX_ sv_manager);
		1909
		1910	frame->prepare = prepare_schedule;
		1911	frame->check = slf_check_repeat;
		1912
		1913	/* as a minor optimisation, we could unwind all stacks here */
		1914	/* but that puts extra pressure on pp_slf, and is not worth much */
		1915	/*coro_unwind_stacks (aTHX);*/
1758	}	1916	}
1759		1917
1760	/*****************************************************************************/	1918	/*****************************************************************************/
1761	/* async pool handler */	1919	/* async pool handler */
1762		1920
…		…
1845	SV *data = (SV *)GENSUB_ARG;	2003	SV *data = (SV *)GENSUB_ARG;
1846		2004
1847	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2005	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1848	{	2006	{
1849	/* first call, set args */	2007	/* first call, set args */
		2008	SV *coro = SvRV (data);
1850	AV *av = newAV ();	2009	AV *av = newAV ();
1851	SV *coro = SvRV (data);
1852		2010
1853	SvRV_set (data, (SV *)av);	2011	SvRV_set (data, (SV *)av);
1854	api_ready (aTHX_ coro);
1855	SvREFCNT_dec (coro);
1856		2012
1857	/* better take a full copy of the arguments */	2013	/* better take a full copy of the arguments */
1858	while (items--)	2014	while (items--)
1859	av_store (av, items, newSVsv (ST (items)));	2015	av_store (av, items, newSVsv (ST (items)));
		2016
		2017	api_ready (aTHX_ coro);
		2018	SvREFCNT_dec (coro);
1860	}	2019	}
1861		2020
1862	XSRETURN_EMPTY;	2021	XSRETURN_EMPTY;
1863	}	2022	}
1864		2023
…		…
1881		2040
1882	EXTEND (SP, AvFILLp (av) + 1);	2041	EXTEND (SP, AvFILLp (av) + 1);
1883	for (i = 0; i <= AvFILLp (av); ++i)	2042	for (i = 0; i <= AvFILLp (av); ++i)
1884	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2043	PUSHs (sv_2mortal (AvARRAY (av)[i]));
1885		2044
1886	/* we have stolen the elements, so ste length to zero and free */	2045	/* we have stolen the elements, so set length to zero and free */
1887	AvFILLp (av) = -1;	2046	AvFILLp (av) = -1;
1888	av_undef (av);	2047	av_undef (av);
1889		2048
1890	PUTBACK;	2049	PUTBACK;
1891	}	2050	}
…		…
1995	static void	2154	static void
1996	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2155	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1997	{	2156	{
1998	frame->prepare = prepare_schedule;	2157	frame->prepare = prepare_schedule;
1999	frame->check = slf_check_nop;	2158	frame->check = slf_check_nop;
		2159	}
		2160
		2161	static void
		2162	slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
		2163	{
		2164	struct coro *next = (struct coro *)slf_frame.data;
		2165
		2166	SvREFCNT_inc_NN (next->hv);
		2167	prepare_schedule_to (aTHX_ ta, next);
		2168	}
		2169
		2170	static void
		2171	slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2172	{
		2173	if (!items)
		2174	croak ("Coro::schedule_to expects a coroutine argument, caught");
		2175
		2176	frame->data = (void *)SvSTATE (arg [0]);
		2177	frame->prepare = slf_prepare_schedule_to;
		2178	frame->check = slf_check_nop;
		2179	}
		2180
		2181	static void
		2182	slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2183	{
		2184	api_ready (aTHX_ SvRV (coro_current));
		2185
		2186	slf_init_schedule_to (aTHX_ frame, cv, arg, items);
2000	}	2187	}
2001		2188
2002	static void	2189	static void
2003	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2190	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2004	{	2191	{
…		…
2150	}	2337	}
2151	else	2338	else
2152	slf_argc = 0;	2339	slf_argc = 0;
2153		2340
2154	PL_op->op_ppaddr = pp_slf;	2341	PL_op->op_ppaddr = pp_slf;
2155	PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */	2342	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2156		2343
2157	PL_op = (OP *)&slf_restore;	2344	PL_op = (OP *)&slf_restore;
		2345	}
		2346
		2347	/*****************************************************************************/
		2348	/* dynamic wind */
		2349
		2350	static void
		2351	on_enterleave_call (pTHX_ SV *cb)
		2352	{
		2353	dSP;
		2354
		2355	PUSHSTACK;
		2356
		2357	PUSHMARK (SP);
		2358	PUTBACK;
		2359	call_sv (cb, G_VOID | G_DISCARD);
		2360	SPAGAIN;
		2361
		2362	POPSTACK;
		2363	}
		2364
		2365	static SV *
		2366	coro_avp_pop_and_free (pTHX_ AV **avp)
		2367	{
		2368	AV *av = *avp;
		2369	SV *res = av_pop (av);
		2370
		2371	if (AvFILLp (av) < 0)
		2372	{
		2373	*avp = 0;
		2374	SvREFCNT_dec (av);
		2375	}
		2376
		2377	return res;
		2378	}
		2379
		2380	static void
		2381	coro_pop_on_enter (pTHX_ void *coro)
		2382	{
		2383	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
		2384	SvREFCNT_dec (cb);
		2385	}
		2386
		2387	static void
		2388	coro_pop_on_leave (pTHX_ void *coro)
		2389	{
		2390	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
		2391	on_enterleave_call (aTHX_ sv_2mortal (cb));
2158	}	2392	}
2159		2393
2160	/*****************************************************************************/	2394	/*****************************************************************************/
2161	/* PerlIO::cede */	2395	/* PerlIO::cede */
2162		2396
…		…
2243	SV **ary;	2477	SV **ary;
2244		2478
2245	/* unfortunately, building manually saves memory */	2479	/* unfortunately, building manually saves memory */
2246	Newx (ary, 2, SV *);	2480	Newx (ary, 2, SV *);
2247	AvALLOC (av) = ary;	2481	AvALLOC (av) = ary;
		2482	#if PERL_VERSION_ATLEAST (5,10,0)
2248	/*AvARRAY (av) = ary;*/	2483	AvARRAY (av) = ary;
		2484	#else
2249	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */	2485	/* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
		2486	/* -DDEBUGGING flags this as a bug, despite it perfectly working */
		2487	SvPVX ((SV *)av) = (char *)ary;
		2488	#endif
2250	AvMAX (av) = 1;	2489	AvMAX (av) = 1;
2251	AvFILLp (av) = 0;	2490	AvFILLp (av) = 0;
2252	ary [0] = newSViv (count);	2491	ary [0] = newSViv (count);
2253		2492
2254	return newRV_noinc ((SV *)av);	2493	return newRV_noinc ((SV *)av);
…		…
2624	XSRETURN_EMPTY;	2863	XSRETURN_EMPTY;
2625	}	2864	}
2626		2865
2627	/*****************************************************************************/	2866	/*****************************************************************************/
2628		2867
		2868	#if CORO_CLONE
		2869	# include "clone.c"
		2870	#endif
		2871
2629	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	2872	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2630		2873
2631	PROTOTYPES: DISABLE	2874	PROTOTYPES: DISABLE
2632		2875
2633	BOOT:	2876	BOOT:
…		…
2637	coro_thx = PERL_GET_CONTEXT;	2880	coro_thx = PERL_GET_CONTEXT;
2638	# endif	2881	# endif
2639	#endif	2882	#endif
2640	BOOT_PAGESIZE;	2883	BOOT_PAGESIZE;
2641		2884
		2885	cctx_current = cctx_new_empty ();
		2886
2642	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);	2887	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2643	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);	2888	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2644		2889
2645	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;	2890	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2646	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;	2891	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
…		…
2665		2910
2666	{	2911	{
2667	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));	2912	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2668		2913
2669	if (!PL_custom_op_names) PL_custom_op_names = newHV ();	2914	if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2670	hv_store_ent (PL_custom_op_names, slf,	2915	hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2671	newSVpv ("coro_slf", 0), 0);
2672		2916
2673	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();	2917	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2674	hv_store_ent (PL_custom_op_descs, slf,	2918	hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2675	newSVpv ("coro schedule like function", 0), 0);
2676	}	2919	}
2677		2920
2678	coroapi.ver = CORO_API_VERSION;	2921	coroapi.ver = CORO_API_VERSION;
2679	coroapi.rev = CORO_API_REVISION;	2922	coroapi.rev = CORO_API_REVISION;
2680		2923
…		…
2773	void	3016	void
2774	_exit (int code)	3017	_exit (int code)
2775	PROTOTYPE: $	3018	PROTOTYPE: $
2776	CODE:	3019	CODE:
2777	_exit (code);	3020	_exit (code);
		3021
		3022	SV *
		3023	clone (Coro::State coro)
		3024	CODE:
		3025	{
		3026	#if CORO_CLONE
		3027	struct coro *ncoro = coro_clone (aTHX_ coro);
		3028	MAGIC *mg;
		3029	/* TODO: too much duplication */
		3030	ncoro->hv = newHV ();
		3031	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
		3032	mg->mg_flags |= MGf_DUP;
		3033	RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
		3034	#else
		3035	croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
		3036	#endif
		3037	}
		3038	OUTPUT:
		3039	RETVAL
2778		3040
2779	int	3041	int
2780	cctx_stacksize (int new_stacksize = 0)	3042	cctx_stacksize (int new_stacksize = 0)
2781	PROTOTYPE: ;$	3043	PROTOTYPE: ;$
2782	CODE:	3044	CODE:
…		…
2832	eval = 1	3094	eval = 1
2833	CODE:	3095	CODE:
2834	{	3096	{
2835	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3097	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2836	{	3098	{
2837	struct coro temp;	3099	struct coro *current = SvSTATE_current;
2838		3100
2839	if (!(coro->flags & CF_RUNNING))	3101	if (current != coro)
2840	{	3102	{
2841	PUTBACK;	3103	PUTBACK;
2842	save_perl (aTHX_ &temp);	3104	save_perl (aTHX_ current);
2843	load_perl (aTHX_ coro);	3105	load_perl (aTHX_ coro);
		3106	SPAGAIN;
2844	}	3107	}
2845		3108
2846	{
2847	dSP;
2848	ENTER;
2849	SAVETMPS;
2850	PUTBACK;
2851	PUSHSTACK;	3109	PUSHSTACK;
		3110
2852	PUSHMARK (SP);	3111	PUSHMARK (SP);
		3112	PUTBACK;
2853		3113
2854	if (ix)	3114	if (ix)
2855	eval_sv (coderef, 0);	3115	eval_sv (coderef, 0);
2856	else	3116	else
2857	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3117	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2858		3118
2859	POPSTACK;	3119	POPSTACK;
2860	SPAGAIN;	3120	SPAGAIN;
2861	FREETMPS;
2862	LEAVE;
2863	PUTBACK;
2864	}
2865		3121
2866	if (!(coro->flags & CF_RUNNING))	3122	if (current != coro)
2867	{	3123	{
		3124	PUTBACK;
2868	save_perl (aTHX_ coro);	3125	save_perl (aTHX_ coro);
2869	load_perl (aTHX_ &temp);	3126	load_perl (aTHX_ current);
2870	SPAGAIN;	3127	SPAGAIN;
2871	}	3128	}
2872	}	3129	}
2873	}	3130	}
2874		3131
…		…
2878	ALIAS:	3135	ALIAS:
2879	is_ready = CF_READY	3136	is_ready = CF_READY
2880	is_running = CF_RUNNING	3137	is_running = CF_RUNNING
2881	is_new = CF_NEW	3138	is_new = CF_NEW
2882	is_destroyed = CF_DESTROYED	3139	is_destroyed = CF_DESTROYED
		3140	is_suspended = CF_SUSPENDED
2883	CODE:	3141	CODE:
2884	RETVAL = boolSV (coro->flags & ix);	3142	RETVAL = boolSV (coro->flags & ix);
2885	OUTPUT:	3143	OUTPUT:
2886	RETVAL	3144	RETVAL
2887		3145
…		…
2903		3161
2904	SV *	3162	SV *
2905	has_cctx (Coro::State coro)	3163	has_cctx (Coro::State coro)
2906	PROTOTYPE: $	3164	PROTOTYPE: $
2907	CODE:	3165	CODE:
2908	RETVAL = boolSV (!!coro->cctx);	3166	/* maybe manage the running flag differently */
		3167	RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2909	OUTPUT:	3168	OUTPUT:
2910	RETVAL	3169	RETVAL
2911		3170
2912	int	3171	int
2913	is_traced (Coro::State coro)	3172	is_traced (Coro::State coro)
…		…
2933		3192
2934	void	3193	void
2935	force_cctx ()	3194	force_cctx ()
2936	PROTOTYPE:	3195	PROTOTYPE:
2937	CODE:	3196	CODE:
2938	SvSTATE_current->cctx->idle_sp = 0;	3197	cctx_current->idle_sp = 0;
2939		3198
2940	void	3199	void
2941	swap_defsv (Coro::State self)	3200	swap_defsv (Coro::State self)
2942	PROTOTYPE: $	3201	PROTOTYPE: $
2943	ALIAS:	3202	ALIAS:
…		…
2951	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;	3210	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2952		3211
2953	SV *tmp = *src; *src = *dst; *dst = tmp;	3212	SV *tmp = *src; *src = *dst; *dst = tmp;
2954	}	3213	}
2955		3214
		3215	void
		3216	cancel (Coro::State self)
		3217	CODE:
		3218	coro_state_destroy (aTHX_ self);
		3219	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3220
2956		3221
2957	MODULE = Coro::State PACKAGE = Coro	3222	MODULE = Coro::State PACKAGE = Coro
2958		3223
2959	BOOT:	3224	BOOT:
2960	{	3225	{
2961	int i;	3226	int i;
2962		3227
2963	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2964	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3228	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2965	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3229	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2966	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);	3230	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
2967	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);	3231	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2968	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	3232	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
		3233	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		3234	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
		3235	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3236	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
2969		3237
2970	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	3238	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
2971	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	3239	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
2972	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);	3240	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
2973	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);	3241	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
…		…
2979	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3247	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
2980	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3248	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
2981	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3249	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
2982	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3250	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
2983		3251
2984	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
2985	coro_ready[i] = newAV ();
2986
2987	{	3252	{
2988	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3253	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2989		3254
2990	coroapi.schedule = api_schedule;	3255	coroapi.schedule = api_schedule;
		3256	coroapi.schedule_to = api_schedule_to;
2991	coroapi.cede = api_cede;	3257	coroapi.cede = api_cede;
2992	coroapi.cede_notself = api_cede_notself;	3258	coroapi.cede_notself = api_cede_notself;
2993	coroapi.ready = api_ready;	3259	coroapi.ready = api_ready;
2994	coroapi.is_ready = api_is_ready;	3260	coroapi.is_ready = api_is_ready;
2995	coroapi.nready = coro_nready;	3261	coroapi.nready = coro_nready;
…		…
3000	SvREADONLY_on (sv);	3266	SvREADONLY_on (sv);
3001	}	3267	}
3002	}	3268	}
3003		3269
3004	void	3270	void
		3271	terminate (...)
		3272	CODE:
		3273	CORO_EXECUTE_SLF_XS (slf_init_terminate);
		3274
		3275	void
3005	schedule (...)	3276	schedule (...)
3006	CODE:	3277	CODE:
3007	CORO_EXECUTE_SLF_XS (slf_init_schedule);	3278	CORO_EXECUTE_SLF_XS (slf_init_schedule);
		3279
		3280	void
		3281	schedule_to (...)
		3282	CODE:
		3283	CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
		3284
		3285	void
		3286	cede_to (...)
		3287	CODE:
		3288	CORO_EXECUTE_SLF_XS (slf_init_cede_to);
3008		3289
3009	void	3290	void
3010	cede (...)	3291	cede (...)
3011	CODE:	3292	CODE:
3012	CORO_EXECUTE_SLF_XS (slf_init_cede);	3293	CORO_EXECUTE_SLF_XS (slf_init_cede);
…		…
3066	PROTOTYPE:	3347	PROTOTYPE:
3067	CODE:	3348	CODE:
3068	RETVAL = coro_nready;	3349	RETVAL = coro_nready;
3069	OUTPUT:	3350	OUTPUT:
3070	RETVAL	3351	RETVAL
		3352
		3353	void
		3354	suspend (Coro::State self)
		3355	PROTOTYPE: $
		3356	CODE:
		3357	self->flags |= CF_SUSPENDED;
		3358
		3359	void
		3360	resume (Coro::State self)
		3361	PROTOTYPE: $
		3362	CODE:
		3363	self->flags &= ~CF_SUSPENDED;
3071		3364
3072	void	3365	void
3073	_pool_handler (...)	3366	_pool_handler (...)
3074	CODE:	3367	CODE:
3075	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);	3368	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
…		…
3130	rouse_wait (...)	3423	rouse_wait (...)
3131	PROTOTYPE: ;$	3424	PROTOTYPE: ;$
3132	PPCODE:	3425	PPCODE:
3133	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3426	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3134		3427
		3428	void
		3429	on_enter (SV *block)
		3430	ALIAS:
		3431	on_leave = 1
		3432	PROTOTYPE: &
		3433	CODE:
		3434	{
		3435	struct coro *coro = SvSTATE_current;
		3436	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3437
		3438	block = (SV *)coro_sv_2cv (aTHX_ block);
		3439
		3440	if (!*avp)
		3441	*avp = newAV ();
		3442
		3443	av_push (*avp, SvREFCNT_inc (block));
		3444
		3445	if (!ix)
		3446	on_enterleave_call (aTHX_ block);
		3447
		3448	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3449	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3450	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3451	}
		3452
3135		3453
3136	MODULE = Coro::State PACKAGE = PerlIO::cede	3454	MODULE = Coro::State PACKAGE = PerlIO::cede
3137		3455
3138	BOOT:	3456	BOOT:
3139	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3457	PerlIO_define_layer (aTHX_ &PerlIO_cede);
…		…
3149	GvSTASH (CvGV (cv))	3467	GvSTASH (CvGV (cv))
3150	);	3468	);
3151	OUTPUT:	3469	OUTPUT:
3152	RETVAL	3470	RETVAL
3153		3471
3154	# helper for Coro::Channel	3472	# helper for Coro::Channel and others
3155	SV *	3473	SV *
3156	_alloc (int count)	3474	_alloc (int count)
3157	CODE:	3475	CODE:
3158	RETVAL = coro_waitarray_new (aTHX_ count);	3476	RETVAL = coro_waitarray_new (aTHX_ count);
3159	OUTPUT:	3477	OUTPUT:
…		…
3217	for (i = 1; i <= wcount; ++i)	3535	for (i = 1; i <= wcount; ++i)
3218	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3536	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3219	}	3537	}
3220	}	3538	}
3221		3539
		3540	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3541
		3542	void
		3543	_may_delete (SV *sem, int count, int extra_refs)
		3544	PPCODE:
		3545	{
		3546	AV *av = (AV *)SvRV (sem);
		3547
		3548	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3549	&& AvFILLp (av) == 0 /* no waiters, just count */
		3550	&& SvIV (AvARRAY (av)[0]) == count)
		3551	XSRETURN_YES;
		3552
		3553	XSRETURN_NO;
		3554	}
		3555
3222	MODULE = Coro::State PACKAGE = Coro::Signal	3556	MODULE = Coro::State PACKAGE = Coro::Signal
3223		3557
3224	SV *	3558	SV *
3225	new (SV *klass)	3559	new (SV *klass)
3226	CODE:	3560	CODE:

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