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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.312 by root, Thu Nov 20 03:10:30 2008 UTC vs.
Revision 1.354 by root, Tue Jun 23 00:56:14 2009 UTC

…		…
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
138	#else	144	#else
139	# define attribute(x)	145	# define attribute(x)
140	# define expect(expr,value) (expr)	146	# define expect(expr,value) (expr)
141	# define INLINE static	147	# define INLINE static
…		…
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;
181	static SV *sv_async_pool_idle;	191	static SV *sv_async_pool_idle; /* description string */
182	static AV *av_async_pool;	192	static AV *av_async_pool; /* idle pool */
183	static SV *sv_Coro;	193	static SV *sv_Coro; /* class string */
184	static CV *cv_pool_handler;	194	static CV *cv_pool_handler;
185	static CV *cv_coro_new;	195	static CV *cv_coro_state_new;
186		196
187	/* Coro::AnyEvent */	197	/* Coro::AnyEvent */
188	static SV *sv_activity;	198	static SV *sv_activity;
189		199
190	static struct coro_cctx *cctx_first;	200	static struct coro_cctx *cctx_first;
…		…
219	int valgrind_id;	229	int valgrind_id;
220	#endif	230	#endif
221	unsigned char flags;	231	unsigned char flags;
222	} coro_cctx;	232	} coro_cctx;
223		233
		234	coro_cctx *cctx_current; /* the currently running cctx */
		235
		236	/*****************************************************************************/
		237
224	enum {	238	enum {
225	CF_RUNNING = 0x0001, /* coroutine is running */	239	CF_RUNNING = 0x0001, /* coroutine is running */
226	CF_READY = 0x0002, /* coroutine is ready */	240	CF_READY = 0x0002, /* coroutine is ready */
227	CF_NEW = 0x0004, /* has never been switched to */	241	CF_NEW = 0x0004, /* has never been switched to */
228	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 */
229	};	244	};
230		245
231	/* 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 */
232	typedef struct	247	typedef struct
233	{	248	{
234	SV *defsv;	249	SV *defsv;
235	AV *defav;	250	AV *defav;
236	SV *errsv;	251	SV *errsv;
237	SV *irsgv;	252	SV *irsgv;
		253	HV *hinthv;
238	#define VAR(name,type) type name;	254	#define VAR(name,type) type name;
239	# include "state.h"	255	# include "state.h"
240	#undef VAR	256	#undef VAR
241	} perl_slots;	257	} perl_slots;
242		258
…		…
244		260
245	/* this is a structure representing a perl-level coroutine */	261	/* this is a structure representing a perl-level coroutine */
246	struct coro {	262	struct coro {
247	/* the C coroutine allocated to this perl coroutine, if any */	263	/* the C coroutine allocated to this perl coroutine, if any */
248	coro_cctx *cctx;	264	coro_cctx *cctx;
		265
		266	/* ready queue */
		267	struct coro *next_ready;
249		268
250	/* state data */	269	/* state data */
251	struct CoroSLF slf_frame; /* saved slf frame */	270	struct CoroSLF slf_frame; /* saved slf frame */
252	AV *mainstack;	271	AV *mainstack;
253	perl_slots *slot; /* basically the saved sp */	272	perl_slots *slot; /* basically the saved sp */
…		…
270	/* async_pool */	289	/* async_pool */
271	SV *saved_deffh;	290	SV *saved_deffh;
272	SV *invoke_cb;	291	SV *invoke_cb;
273	AV *invoke_av;	292	AV *invoke_av;
274		293
		294	/* on_enter/on_leave */
		295	AV *on_enter;
		296	AV *on_leave;
		297
275	/* linked list */	298	/* linked list */
276	struct coro *next, *prev;	299	struct coro *next, *prev;
277	};	300	};
278		301
279	typedef struct coro *Coro__State;	302	typedef struct coro *Coro__State;
…		…
294	#define PRIO_MIN -4	317	#define PRIO_MIN -4
295		318
296	/* for Coro.pm */	319	/* for Coro.pm */
297	static SV *coro_current;	320	static SV *coro_current;
298	static SV *coro_readyhook;	321	static SV *coro_readyhook;
299	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	322	static struct coro *coro_ready [PRIO_MAX - PRIO_MIN + 1][2]; /* head|tail */
300	static CV *cv_coro_run, *cv_coro_terminate;	323	static CV *cv_coro_run, *cv_coro_terminate;
301	static struct coro *coro_first;	324	static struct coro *coro_first;
302	#define coro_nready coroapi.nready	325	#define coro_nready coroapi.nready
303		326
304	/** lowlevel stuff **********************************************************/	327	/** lowlevel stuff **********************************************************/
…		…
337	INLINE CV *	360	INLINE CV *
338	coro_sv_2cv (pTHX_ SV *sv)	361	coro_sv_2cv (pTHX_ SV *sv)
339	{	362	{
340	HV *st;	363	HV *st;
341	GV *gvp;	364	GV *gvp;
342	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;
343	}	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 */
344		424
345	static AV *	425	static AV *
346	coro_clone_padlist (pTHX_ CV *cv)	426	coro_derive_padlist (pTHX_ CV *cv)
347	{	427	{
348	AV *padlist = CvPADLIST (cv);	428	AV *padlist = CvPADLIST (cv);
349	AV *newpadlist, *newpad;	429	AV *newpadlist, *newpad;
350		430
351	newpadlist = newAV ();	431	newpadlist = newAV ();
…		…
356	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	436	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
357	#endif	437	#endif
358	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	438	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
359	--AvFILLp (padlist);	439	--AvFILLp (padlist);
360		440
361	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));	441	av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
362	av_store (newpadlist, 1, (SV *)newpad);	442	av_store (newpadlist, 1, (SV *)newpad);
363		443
364	return newpadlist;	444	return newpadlist;
365	}	445	}
366		446
367	static void	447	static void
368	free_padlist (pTHX_ AV *padlist)	448	free_padlist (pTHX_ AV *padlist)
369	{	449	{
370	/* may be during global destruction */	450	/* may be during global destruction */
371	if (SvREFCNT (padlist))	451	if (!IN_DESTRUCT)
372	{	452	{
373	I32 i = AvFILLp (padlist);	453	I32 i = AvFILLp (padlist);
374	while (i >= 0)	454
		455	while (i > 0) /* special-case index 0 */
375	{	456	{
376	SV **svp = av_fetch (padlist, i--, FALSE);	457	/* we try to be extra-careful here */
377	if (svp)	458	AV *av = (AV *)AvARRAY (padlist)[i--];
378	{	459	I32 j = AvFILLp (av);
379	SV *sv;	460
380	while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))	461	while (j >= 0)
		462	SvREFCNT_dec (AvARRAY (av)[j--]);
		463
		464	AvFILLp (av) = -1;
381	SvREFCNT_dec (sv);	465	SvREFCNT_dec (av);
382
383	SvREFCNT_dec (*svp);
384	}
385	}	466	}
386		467
		468	SvREFCNT_dec (AvARRAY (padlist)[0]);
		469
		470	AvFILLp (padlist) = -1;
387	SvREFCNT_dec ((SV*)padlist);	471	SvREFCNT_dec ((SV*)padlist);
388	}	472	}
389	}	473	}
390		474
391	static int	475	static int
…		…
400		484
401	SvREFCNT_dec (av); /* sv_magicext increased the refcount */	485	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
402		486
403	return 0;	487	return 0;
404	}	488	}
405
406	#define CORO_MAGIC_type_cv 26
407	#define CORO_MAGIC_type_state PERL_MAGIC_ext
408		489
409	static MGVTBL coro_cv_vtbl = {	490	static MGVTBL coro_cv_vtbl = {
410	0, 0, 0, 0,	491	0, 0, 0, 0,
411	coro_cv_free	492	coro_cv_free
412	};	493	};
413
414	#define CORO_MAGIC_NN(sv, type) \
415	(expect_true (SvMAGIC (sv)->mg_type == type) \
416	? SvMAGIC (sv) \
417	: mg_find (sv, type))
418
419	#define CORO_MAGIC(sv, type) \
420	(expect_true (SvMAGIC (sv)) \
421	? CORO_MAGIC_NN (sv, type) \
422	: 0)
423
424	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
425	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
426
427	INLINE struct coro *
428	SvSTATE_ (pTHX_ SV *coro)
429	{
430	HV *stash;
431	MAGIC *mg;
432
433	if (SvROK (coro))
434	coro = SvRV (coro);
435
436	if (expect_false (SvTYPE (coro) != SVt_PVHV))
437	croak ("Coro::State object required");
438
439	stash = SvSTASH (coro);
440	if (expect_false (stash != coro_stash && stash != coro_state_stash))
441	{
442	/* very slow, but rare, check */
443	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
444	croak ("Coro::State object required");
445	}
446
447	mg = CORO_MAGIC_state (coro);
448	return (struct coro *)mg->mg_ptr;
449	}
450
451	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
452
453	/* faster than SvSTATE, but expects a coroutine hv */
454	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
455	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
456		494
457	/* the next two functions merely cache the padlists */	495	/* the next two functions merely cache the padlists */
458	static void	496	static void
459	get_padlist (pTHX_ CV *cv)	497	get_padlist (pTHX_ CV *cv)
460	{	498	{
…		…
471	CV *cp = Perl_cv_clone (aTHX_ cv);	509	CV *cp = Perl_cv_clone (aTHX_ cv);
472	CvPADLIST (cv) = CvPADLIST (cp);	510	CvPADLIST (cv) = CvPADLIST (cp);
473	CvPADLIST (cp) = 0;	511	CvPADLIST (cp) = 0;
474	SvREFCNT_dec (cp);	512	SvREFCNT_dec (cp);
475	#else	513	#else
476	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	514	CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
477	#endif	515	#endif
478	}	516	}
479	}	517	}
480		518
481	static void	519	static void
…		…
488	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);
489		527
490	av = (AV *)mg->mg_obj;	528	av = (AV *)mg->mg_obj;
491		529
492	if (expect_false (AvFILLp (av) >= AvMAX (av)))	530	if (expect_false (AvFILLp (av) >= AvMAX (av)))
493	av_extend (av, AvMAX (av) + 1);	531	av_extend (av, AvFILLp (av) + 1);
494		532
495	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	533	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
496	}	534	}
497		535
498	/** load & save, init *******************************************************/	536	/** load & save, init *******************************************************/
		537
		538	static void
		539	on_enterleave_call (pTHX_ SV *cb);
499		540
500	static void	541	static void
501	load_perl (pTHX_ Coro__State c)	542	load_perl (pTHX_ Coro__State c)
502	{	543	{
503	perl_slots *slot = c->slot;	544	perl_slots *slot = c->slot;
504	c->slot = 0;	545	c->slot = 0;
505		546
506	PL_mainstack = c->mainstack;	547	PL_mainstack = c->mainstack;
507		548
508	GvSV (PL_defgv) = slot->defsv;	549	GvSV (PL_defgv) = slot->defsv;
509	GvAV (PL_defgv) = slot->defav;	550	GvAV (PL_defgv) = slot->defav;
510	GvSV (PL_errgv) = slot->errsv;	551	GvSV (PL_errgv) = slot->errsv;
511	GvSV (irsgv) = slot->irsgv;	552	GvSV (irsgv) = slot->irsgv;
		553	GvHV (PL_hintgv) = slot->hinthv;
512		554
513	#define VAR(name,type) PL_ ## name = slot->name;	555	#define VAR(name,type) PL_ ## name = slot->name;
514	# include "state.h"	556	# include "state.h"
515	#undef VAR	557	#undef VAR
516		558
…		…
530	PUTBACK;	572	PUTBACK;
531	}	573	}
532		574
533	slf_frame = c->slf_frame;	575	slf_frame = c->slf_frame;
534	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	}
535	}	585	}
536		586
537	static void	587	static void
538	save_perl (pTHX_ Coro__State c)	588	save_perl (pTHX_ Coro__State c)
539	{	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
540	c->except = CORO_THROW;	598	c->except = CORO_THROW;
541	c->slf_frame = slf_frame;	599	c->slf_frame = slf_frame;
542		600
543	{	601	{
544	dSP;	602	dSP;
…		…
557	{	615	{
558	while (expect_true (cxix >= 0))	616	while (expect_true (cxix >= 0))
559	{	617	{
560	PERL_CONTEXT *cx = &ccstk[cxix--];	618	PERL_CONTEXT *cx = &ccstk[cxix--];
561		619
562	if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT))	620	if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
563	{	621	{
564	CV *cv = cx->blk_sub.cv;	622	CV *cv = cx->blk_sub.cv;
565		623
566	if (expect_true (CvDEPTH (cv)))	624	if (expect_true (CvDEPTH (cv)))
567	{	625	{
…		…
602	c->mainstack = PL_mainstack;	660	c->mainstack = PL_mainstack;
603		661
604	{	662	{
605	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	663	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
606		664
607	slot->defav = GvAV (PL_defgv);	665	slot->defav = GvAV (PL_defgv);
608	slot->defsv = DEFSV;	666	slot->defsv = DEFSV;
609	slot->errsv = ERRSV;	667	slot->errsv = ERRSV;
610	slot->irsgv = GvSV (irsgv);	668	slot->irsgv = GvSV (irsgv);
		669	slot->hinthv = GvHV (PL_hintgv);
611		670
612	#define VAR(name,type) slot->name = PL_ ## name;	671	#define VAR(name,type) slot->name = PL_ ## name;
613	# include "state.h"	672	# include "state.h"
614	#undef VAR	673	#undef VAR
615	}	674	}
…		…
742	#endif	801	#endif
743		802
744	/*	803	/*
745	* This overrides the default magic get method of %SIG elements.	804	* This overrides the default magic get method of %SIG elements.
746	* 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
747	* 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
748	* readback here.	807	* readback here.
749	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
750	* not expecting this to actually change the hook. This is a potential problem
751	* when a schedule happens then, but we ignore this.
752	*/	808	*/
753	static int	809	static int
754	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	810	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
755	{	811	{
756	const char *s = MgPV_nolen_const (mg);	812	const char *s = MgPV_nolen_const (mg);
…		…
809	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	865	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
810		866
811	if (svp)	867	if (svp)
812	{	868	{
813	SV *old = *svp;	869	SV *old = *svp;
814	*svp = newSVsv (sv);	870	*svp = SvOK (sv) ? newSVsv (sv) : 0;
815	SvREFCNT_dec (old);	871	SvREFCNT_dec (old);
816	return 0;	872	return 0;
817	}	873	}
818	}	874	}
819		875
…		…
829		885
830	static int	886	static int
831	slf_check_nop (pTHX_ struct CoroSLF *frame)	887	slf_check_nop (pTHX_ struct CoroSLF *frame)
832	{	888	{
833	return 0;	889	return 0;
		890	}
		891
		892	static int
		893	slf_check_repeat (pTHX_ struct CoroSLF *frame)
		894	{
		895	return 1;
834	}	896	}
835		897
836	static UNOP coro_setup_op;	898	static UNOP coro_setup_op;
837		899
838	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 */
…		…
845		907
846	PL_runops = RUNOPS_DEFAULT;	908	PL_runops = RUNOPS_DEFAULT;
847	PL_curcop = &PL_compiling;	909	PL_curcop = &PL_compiling;
848	PL_in_eval = EVAL_NULL;	910	PL_in_eval = EVAL_NULL;
849	PL_comppad = 0;	911	PL_comppad = 0;
		912	PL_comppad_name = 0;
		913	PL_comppad_name_fill = 0;
		914	PL_comppad_name_floor = 0;
850	PL_curpm = 0;	915	PL_curpm = 0;
851	PL_curpad = 0;	916	PL_curpad = 0;
852	PL_localizing = 0;	917	PL_localizing = 0;
853	PL_dirty = 0;	918	PL_dirty = 0;
854	PL_restartop = 0;	919	PL_restartop = 0;
855	#if PERL_VERSION_ATLEAST (5,10,0)	920	#if PERL_VERSION_ATLEAST (5,10,0)
856	PL_parser = 0;	921	PL_parser = 0;
857	#endif	922	#endif
		923	PL_hints = 0;
858		924
859	/* recreate the die/warn hooks */	925	/* recreate the die/warn hooks */
860	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 );
861	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);
862		928
863	GvSV (PL_defgv) = newSV (0);	929	GvSV (PL_defgv) = newSV (0);
864	GvAV (PL_defgv) = coro->args; coro->args = 0;	930	GvAV (PL_defgv) = coro->args; coro->args = 0;
865	GvSV (PL_errgv) = newSV (0);	931	GvSV (PL_errgv) = newSV (0);
866	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;
867	PL_rs = newSVsv (GvSV (irsgv));	934	PL_rs = newSVsv (GvSV (irsgv));
868	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	935	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
869		936
870	{	937	{
871	dSP;	938	dSP;
…		…
889	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 */
890	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 */
891		958
892	/* 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 */
893	coro_setup_op.op_next = PL_op;	960	coro_setup_op.op_next = PL_op;
894	coro_setup_op.op_type = OP_CUSTOM;	961	coro_setup_op.op_type = OP_ENTERSUB;
895	coro_setup_op.op_ppaddr = pp_slf;	962	coro_setup_op.op_ppaddr = pp_slf;
896	/* 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 */
897		964
898	PL_op = (OP *)&coro_setup_op;	965	PL_op = (OP *)&coro_setup_op;
899		966
900	/* copy throw, in case it was set before coro_setup */	967	/* copy throw, in case it was set before coro_setup */
901	CORO_THROW = coro->except;	968	CORO_THROW = coro->except;
902	}	969	}
903		970
904	static void	971	static void
905	coro_destruct (pTHX_ struct coro *coro)	972	coro_unwind_stacks (pTHX)
906	{	973	{
907	if (!IN_DESTRUCT)	974	if (!IN_DESTRUCT)
908	{	975	{
909	/* restore all saved variables and stuff */	976	/* restore all saved variables and stuff */
910	LEAVE_SCOPE (0);	977	LEAVE_SCOPE (0);
…		…
918	POPSTACK_TO (PL_mainstack);	985	POPSTACK_TO (PL_mainstack);
919		986
920	/* unwind main stack */	987	/* unwind main stack */
921	dounwind (-1);	988	dounwind (-1);
922	}	989	}
		990	}
923		991
924	SvREFCNT_dec (GvSV (PL_defgv));	992	static void
925	SvREFCNT_dec (GvAV (PL_defgv));	993	coro_destruct_perl (pTHX_ struct coro *coro)
926	SvREFCNT_dec (GvSV (PL_errgv));	994	{
927	SvREFCNT_dec (PL_defoutgv);	995	SV *svf [9];
928	SvREFCNT_dec (PL_rs);
929	SvREFCNT_dec (GvSV (irsgv));
930		996
931	SvREFCNT_dec (PL_diehook);
932	SvREFCNT_dec (PL_warnhook);
933		997	{
		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
		1005	coro_unwind_stacks (aTHX);
		1006	coro_destruct_stacks (aTHX);
		1007
		1008	// now save some sv's to be free'd later
		1009	svf [0] = GvSV (PL_defgv);
		1010	svf [1] = (SV *)GvAV (PL_defgv);
		1011	svf [2] = GvSV (PL_errgv);
		1012	svf [3] = (SV *)PL_defoutgv;
		1013	svf [4] = PL_rs;
		1014	svf [5] = GvSV (irsgv);
		1015	svf [6] = (SV *)GvHV (PL_hintgv);
		1016	svf [7] = PL_diehook;
		1017	svf [8] = PL_warnhook;
		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
934	SvREFCNT_dec (coro->saved_deffh);	1029	SvREFCNT_dec (coro->saved_deffh);
935	SvREFCNT_dec (coro->rouse_cb);	1030	SvREFCNT_dec (coro->rouse_cb);
936	SvREFCNT_dec (coro->invoke_cb);	1031	SvREFCNT_dec (coro->invoke_cb);
937	SvREFCNT_dec (coro->invoke_av);	1032	SvREFCNT_dec (coro->invoke_av);
938		1033	}
939	coro_destruct_stacks (aTHX);
940	}	1034	}
941		1035
942	INLINE void	1036	INLINE void
943	free_coro_mortal (pTHX)	1037	free_coro_mortal (pTHX)
944	{	1038	{
…		…
952	static int	1046	static int
953	runops_trace (pTHX)	1047	runops_trace (pTHX)
954	{	1048	{
955	COP *oldcop = 0;	1049	COP *oldcop = 0;
956	int oldcxix = -2;	1050	int oldcxix = -2;
957	struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
958	coro_cctx *cctx = coro->cctx;
959		1051
960	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))	1052	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
961	{	1053	{
962	PERL_ASYNC_CHECK ();	1054	PERL_ASYNC_CHECK ();
963		1055
964	if (cctx->flags & CC_TRACE_ALL)	1056	if (cctx_current->flags & CC_TRACE_ALL)
965	{	1057	{
966	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)
967	{	1059	{
968	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1060	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
969	SV **bot, **top;	1061	SV **bot, **top;
970	AV *av = newAV (); /* return values */	1062	AV *av = newAV (); /* return values */
971	SV **cb;	1063	SV **cb;
…		…
1008		1100
1009	if (PL_curcop != &PL_compiling)	1101	if (PL_curcop != &PL_compiling)
1010	{	1102	{
1011	SV **cb;	1103	SV **cb;
1012		1104
1013	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)	1105	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1014	{	1106	{
1015	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1107	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1016		1108
1017	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1109	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1018	{	1110	{
1019	runops_proc_t old_runops = PL_runops;
1020	dSP;	1111	dSP;
1021	GV *gv = CvGV (cx->blk_sub.cv);	1112	GV *gv = CvGV (cx->blk_sub.cv);
1022	SV *fullname = sv_2mortal (newSV (0));	1113	SV *fullname = sv_2mortal (newSV (0));
1023		1114
1024	if (isGV (gv))	1115	if (isGV (gv))
…		…
1042	}	1133	}
1043		1134
1044	oldcxix = cxstack_ix;	1135	oldcxix = cxstack_ix;
1045	}	1136	}
1046		1137
1047	if (cctx->flags & CC_TRACE_LINE)	1138	if (cctx_current->flags & CC_TRACE_LINE)
1048	{	1139	{
1049	dSP;	1140	dSP;
1050		1141
1051	PL_runops = RUNOPS_DEFAULT;	1142	PL_runops = RUNOPS_DEFAULT;
1052	ENTER;	1143	ENTER;
…		…
1071		1162
1072	TAINT_NOT;	1163	TAINT_NOT;
1073	return 0;	1164	return 0;
1074	}	1165	}
1075		1166
1076	static struct coro_cctx *cctx_ssl_cctx;
1077	static struct CoroSLF cctx_ssl_frame;	1167	static struct CoroSLF cctx_ssl_frame;
1078		1168
1079	static void	1169	static void
1080	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)	1170	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1081	{	1171	{
1082	ta->prev = (struct coro *)cctx_ssl_cctx;
1083	ta->next = 0;	1172	ta->prev = 0;
1084	}	1173	}
1085		1174
1086	static int	1175	static int
1087	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)	1176	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1088	{	1177	{
…		…
1091	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 */
1092	}	1181	}
1093		1182
1094	/* 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 */
1095	static void NOINLINE	1184	static void NOINLINE
1096	cctx_prepare (pTHX_ coro_cctx *cctx)	1185	cctx_prepare (pTHX)
1097	{	1186	{
1098	PL_top_env = &PL_start_env;	1187	PL_top_env = &PL_start_env;
1099		1188
1100	if (cctx->flags & CC_TRACE)	1189	if (cctx_current->flags & CC_TRACE)
1101	PL_runops = runops_trace;	1190	PL_runops = runops_trace;
1102		1191
1103	/* 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
1104	* that can lead to creation of a new cctx */	1193	* that can lead to creation of a new cctx */
1105	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)",
1106	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));	1195	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1107		1196
1108	/* 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 */
1109	cctx_ssl_cctx = cctx;
1110	cctx_ssl_frame = slf_frame;	1198	cctx_ssl_frame = slf_frame;
1111		1199
1112	slf_frame.prepare = slf_prepare_set_stacklevel;	1200	slf_frame.prepare = slf_prepare_set_stacklevel;
1113	slf_frame.check = slf_check_set_stacklevel;	1201	slf_frame.check = slf_check_set_stacklevel;
1114	}	1202	}
…		…
1137	/* normally we would need to skip the entersub here */	1225	/* normally we would need to skip the entersub here */
1138	/* 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 */
1139	/* PL_nop = PL_nop->op_next */	1227	/* PL_nop = PL_nop->op_next */
1140		1228
1141	/* inject a fake subroutine call to cctx_init */	1229	/* inject a fake subroutine call to cctx_init */
1142	cctx_prepare (aTHX_ (coro_cctx *)arg);	1230	cctx_prepare (aTHX);
1143		1231
1144	/* cctx_run is the alternative tail of transfer() */	1232	/* cctx_run is the alternative tail of transfer() */
1145	transfer_tail (aTHX);	1233	transfer_tail (aTHX);
1146		1234
1147	/* 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 */
…		…
1155	/*	1243	/*
1156	* 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
1157	* 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)
1158	* 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
1159	* bootstrap-time "top" top_env, as we cannot restore the "main"	1247	* bootstrap-time "top" top_env, as we cannot restore the "main"
1160	* 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.
1161	*/	1251	*/
1162	PL_top_env = main_top_env;	1252	PL_top_env = main_top_env;
1163	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 */
1164	}	1254	}
1165	}	1255	}
…		…
1242	cctx_destroy (coro_cctx *cctx)	1332	cctx_destroy (coro_cctx *cctx)
1243	{	1333	{
1244	if (!cctx)	1334	if (!cctx)
1245	return;	1335	return;
1246		1336
		1337	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
		1338
1247	--cctx_count;	1339	--cctx_count;
1248	coro_destroy (&cctx->cctx);	1340	coro_destroy (&cctx->cctx);
1249		1341
1250	/* coro_transfer creates new, empty cctx's */	1342	/* coro_transfer creates new, empty cctx's */
1251	if (cctx->sptr)	1343	if (cctx->sptr)
…		…
1314	/* TODO: throwing up here is considered harmful */	1406	/* TODO: throwing up here is considered harmful */
1315		1407
1316	if (expect_true (prev != next))	1408	if (expect_true (prev != next))
1317	{	1409	{
1318	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1410	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1319	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,");
1320		1412
1321	if (expect_false (next->flags & CF_RUNNING))
1322	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1323
1324	if (expect_false (next->flags & CF_DESTROYED))	1413	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1325	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,");
1326		1415
1327	#if !PERL_VERSION_ATLEAST (5,10,0)	1416	#if !PERL_VERSION_ATLEAST (5,10,0)
1328	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1417	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1329	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,");
1330	#endif	1419	#endif
…		…
1336	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)	1425	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1337	{	1426	{
1338	dSTACKLEVEL;	1427	dSTACKLEVEL;
1339		1428
1340	/* sometimes transfer is only called to set idle_sp */	1429	/* sometimes transfer is only called to set idle_sp */
1341	if (expect_false (!next))	1430	if (expect_false (!prev))
1342	{	1431	{
1343	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1432	cctx_current->idle_sp = STACKLEVEL;
1344	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 */
1345	}	1434	}
1346	else if (expect_true (prev != next))	1435	else if (expect_true (prev != next))
1347	{	1436	{
1348	coro_cctx *prev__cctx;	1437	coro_cctx *cctx_prev;
1349		1438
1350	if (expect_false (prev->flags & CF_NEW))	1439	if (expect_false (prev->flags & CF_NEW))
1351	{	1440	{
1352	/* create a new empty/source context */	1441	/* create a new empty/source context */
1353	prev->cctx = cctx_new_empty ();
1354	prev->flags &= ~CF_NEW;	1442	prev->flags &= ~CF_NEW;
1355	prev->flags |= CF_RUNNING;	1443	prev->flags |= CF_RUNNING;
1356	}	1444	}
1357		1445
1358	prev->flags &= ~CF_RUNNING;	1446	prev->flags &= ~CF_RUNNING;
…		…
1369	coro_setup (aTHX_ next);	1457	coro_setup (aTHX_ next);
1370	}	1458	}
1371	else	1459	else
1372	load_perl (aTHX_ next);	1460	load_perl (aTHX_ next);
1373		1461
1374	prev__cctx = prev->cctx;
1375
1376	/* possibly untie and reuse the cctx */	1462	/* possibly untie and reuse the cctx */
1377	if (expect_true (	1463	if (expect_true (
1378	prev__cctx->idle_sp == STACKLEVEL	1464	cctx_current->idle_sp == STACKLEVEL
1379	&& !(prev__cctx->flags & CC_TRACE)	1465	&& !(cctx_current->flags & CC_TRACE)
1380	&& !force_cctx	1466	&& !force_cctx
1381	))	1467	))
1382	{	1468	{
1383	/* 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 */
1384	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));
1385		1471
1386	prev->cctx = 0;
1387
1388	/* 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. */
1389	/* 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 */
1390	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1474	if (expect_false (CCTX_EXPIRED (cctx_current)))
1391	if (!next->cctx)	1475	if (expect_true (!next->cctx))
1392	next->cctx = cctx_get (aTHX);	1476	next->cctx = cctx_get (aTHX);
1393		1477
1394	cctx_put (prev__cctx);	1478	cctx_put (cctx_current);
1395	}	1479	}
		1480	else
		1481	prev->cctx = cctx_current;
1396		1482
1397	++next->usecount;	1483	++next->usecount;
1398		1484
1399	if (expect_true (!next->cctx))	1485	cctx_prev = cctx_current;
1400	next->cctx = cctx_get (aTHX);	1486	cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1401		1487
1402	if (expect_false (prev__cctx != next->cctx))	1488	next->cctx = 0;
		1489
		1490	if (expect_false (cctx_prev != cctx_current))
1403	{	1491	{
1404	prev__cctx->top_env = PL_top_env;	1492	cctx_prev->top_env = PL_top_env;
1405	PL_top_env = next->cctx->top_env;	1493	PL_top_env = cctx_current->top_env;
1406	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1494	coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1407	}	1495	}
1408		1496
1409	transfer_tail (aTHX);	1497	transfer_tail (aTHX);
1410	}	1498	}
1411	}	1499	}
…		…
1419	coro_state_destroy (pTHX_ struct coro *coro)	1507	coro_state_destroy (pTHX_ struct coro *coro)
1420	{	1508	{
1421	if (coro->flags & CF_DESTROYED)	1509	if (coro->flags & CF_DESTROYED)
1422	return 0;	1510	return 0;
1423		1511
1424	if (coro->on_destroy)	1512	if (coro->on_destroy && !PL_dirty)
1425	coro->on_destroy (aTHX_ coro);	1513	coro->on_destroy (aTHX_ coro);
1426		1514
1427	coro->flags |= CF_DESTROYED;	1515	coro->flags |= CF_DESTROYED;
1428		1516
1429	if (coro->flags & CF_READY)	1517	if (coro->flags & CF_READY)
…		…
1433	--coro_nready;	1521	--coro_nready;
1434	}	1522	}
1435	else	1523	else
1436	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 */
1437		1525
1438	if (coro->mainstack && coro->mainstack != main_mainstack)	1526	if (coro->mainstack
1439	{	1527	&& coro->mainstack != main_mainstack
1440	struct coro temp;	1528	&& coro->slot
1441		1529	&& !PL_dirty)
1442	assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1443
1444	save_perl (aTHX_ &temp);
1445	load_perl (aTHX_ coro);
1446
1447	coro_destruct (aTHX_ coro);	1530	coro_destruct_perl (aTHX_ coro);
1448
1449	load_perl (aTHX_ &temp);
1450
1451	coro->slot = 0;
1452	}
1453		1531
1454	cctx_destroy (coro->cctx);	1532	cctx_destroy (coro->cctx);
1455	SvREFCNT_dec (coro->startcv);	1533	SvREFCNT_dec (coro->startcv);
1456	SvREFCNT_dec (coro->args);	1534	SvREFCNT_dec (coro->args);
1457	SvREFCNT_dec (CORO_THROW);	1535	SvREFCNT_dec (CORO_THROW);
…		…
1544	/** Coro ********************************************************************/	1622	/** Coro ********************************************************************/
1545		1623
1546	INLINE void	1624	INLINE void
1547	coro_enq (pTHX_ struct coro *coro)	1625	coro_enq (pTHX_ struct coro *coro)
1548	{	1626	{
1549	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1627	struct coro **ready = coro_ready [coro->prio - PRIO_MIN];
1550	}
1551		1628
1552	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 *
1553	coro_deq (pTHX)	1637	coro_deq (pTHX)
1554	{	1638	{
1555	int prio;	1639	int prio;
1556		1640
1557	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1641	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1558	if (AvFILLp (coro_ready [prio]) >= 0)	1642	{
1559	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	}
1560		1652
1561	return 0;	1653	return 0;
1562	}	1654	}
1563		1655
1564	static int	1656	static int
…		…
1566	{	1658	{
1567	struct coro *coro;	1659	struct coro *coro;
1568	SV *sv_hook;	1660	SV *sv_hook;
1569	void (*xs_hook)(void);	1661	void (*xs_hook)(void);
1570		1662
1571	if (SvROK (coro_sv))
1572	coro_sv = SvRV (coro_sv);
1573
1574	coro = SvSTATE (coro_sv);	1663	coro = SvSTATE (coro_sv);
1575		1664
1576	if (coro->flags & CF_READY)	1665	if (coro->flags & CF_READY)
1577	return 0;	1666	return 0;
1578		1667
…		…
1609	api_is_ready (pTHX_ SV *coro_sv)	1698	api_is_ready (pTHX_ SV *coro_sv)
1610	{	1699	{
1611	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1700	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1612	}	1701	}
1613		1702
		1703	/* expects to own a reference to next->hv */
1614	INLINE void	1704	INLINE void
1615	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1705	prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1616	{	1706	{
1617	SV *prev_sv, *next_sv;
1618
1619	for (;;)
1620	{
1621	next_sv = coro_deq (aTHX);
1622
1623	/* nothing to schedule: call the idle handler */
1624	if (expect_false (!next_sv))
1625	{
1626	dSP;
1627
1628	ENTER;
1629	SAVETMPS;
1630
1631	PUSHMARK (SP);
1632	PUTBACK;
1633	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1634
1635	FREETMPS;
1636	LEAVE;
1637	continue;
1638	}
1639
1640	ta->next = SvSTATE_hv (next_sv);
1641
1642	/* cannot transfer to destroyed coros, skip and look for next */
1643	if (expect_false (ta->next->flags & CF_DESTROYED))
1644	{
1645	SvREFCNT_dec (next_sv);
1646	/* coro_nready has already been taken care of by destroy */
1647	continue;
1648	}
1649
1650	--coro_nready;
1651	break;
1652	}
1653
1654	/* free this only after the transfer */
1655	prev_sv = SvRV (coro_current);	1707	SV *prev_sv = SvRV (coro_current);
		1708
1656	ta->prev = SvSTATE_hv (prev_sv);	1709	ta->prev = SvSTATE_hv (prev_sv);
		1710	ta->next = next;
		1711
1657	TRANSFER_CHECK (*ta);	1712	TRANSFER_CHECK (*ta);
1658	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));	1713
1659	ta->next->flags &= ~CF_READY;
1660	SvRV_set (coro_current, next_sv);	1714	SvRV_set (coro_current, (SV *)next->hv);
1661		1715
1662	free_coro_mortal (aTHX);	1716	free_coro_mortal (aTHX);
1663	coro_mortal = prev_sv;	1717	coro_mortal = prev_sv;
1664	}	1718	}
1665		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
1666	INLINE void	1769	INLINE void
1667	prepare_cede (pTHX_ struct coro_transfer_args *ta)	1770	prepare_cede (pTHX_ struct coro_transfer_args *ta)
1668	{	1771	{
1669	api_ready (aTHX_ coro_current);	1772	api_ready (aTHX_ coro_current);
1670	prepare_schedule (aTHX_ ta);	1773	prepare_schedule (aTHX_ ta);
…		…
1689	{	1792	{
1690	struct coro_transfer_args ta;	1793	struct coro_transfer_args ta;
1691		1794
1692	prepare_schedule (aTHX_ &ta);	1795	prepare_schedule (aTHX_ &ta);
1693	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);
1694	}	1807	}
1695		1808
1696	static int	1809	static int
1697	api_cede (pTHX)	1810	api_cede (pTHX)
1698	{	1811	{
…		…
1727	static void	1840	static void
1728	api_trace (pTHX_ SV *coro_sv, int flags)	1841	api_trace (pTHX_ SV *coro_sv, int flags)
1729	{	1842	{
1730	struct coro *coro = SvSTATE (coro_sv);	1843	struct coro *coro = SvSTATE (coro_sv);
1731		1844
		1845	if (coro->flags & CF_RUNNING)
		1846	croak ("cannot enable tracing on a running coroutine, caught");
		1847
1732	if (flags & CC_TRACE)	1848	if (flags & CC_TRACE)
1733	{	1849	{
1734	if (!coro->cctx)	1850	if (!coro->cctx)
1735	coro->cctx = cctx_new_run ();	1851	coro->cctx = cctx_new_run ();
1736	else if (!(coro->cctx->flags & CC_TRACE))	1852	else if (!(coro->cctx->flags & CC_TRACE))
1737	croak ("cannot enable tracing on coroutine with custom stack,");	1853	croak ("cannot enable tracing on coroutine with custom stack, caught");
1738		1854
1739	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));	1855	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1740	}	1856	}
1741	else if (coro->cctx && coro->cctx->flags & CC_TRACE)	1857	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1742	{	1858	{
…		…
1747	else	1863	else
1748	coro->slot->runops = RUNOPS_DEFAULT;	1864	coro->slot->runops = RUNOPS_DEFAULT;
1749	}	1865	}
1750	}	1866	}
1751		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
1752	/*****************************************************************************/	1925	/*****************************************************************************/
1753	/* async pool handler */	1926	/* async pool handler */
1754		1927
1755	static int	1928	static int
1756	slf_check_pool_handler (pTHX_ struct CoroSLF *frame)	1929	slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
…		…
1760		1933
1761	if (!coro->invoke_cb)	1934	if (!coro->invoke_cb)
1762	return 1; /* loop till we have invoke */	1935	return 1; /* loop till we have invoke */
1763	else	1936	else
1764	{	1937	{
1765	int i, len;
1766
1767	hv_store (hv, "desc", sizeof ("desc") - 1,	1938	hv_store (hv, "desc", sizeof ("desc") - 1,
1768	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);	1939	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1769		1940
1770	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);	1941	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1771
1772	len = av_len (coro->invoke_av);
1773		1942
1774	{	1943	{
1775	dSP;	1944	dSP;
1776	XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;	1945	XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
1777	PUTBACK;	1946	PUTBACK;
…		…
1841	SV *data = (SV *)GENSUB_ARG;	2010	SV *data = (SV *)GENSUB_ARG;
1842		2011
1843	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2012	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1844	{	2013	{
1845	/* first call, set args */	2014	/* first call, set args */
1846	int i;	2015	SV *coro = SvRV (data);
1847	AV *av = newAV ();	2016	AV *av = newAV ();
1848	SV *coro = SvRV (data);
1849		2017
1850	SvRV_set (data, (SV *)av);	2018	SvRV_set (data, (SV *)av);
1851	api_ready (aTHX_ coro);
1852	SvREFCNT_dec (coro);
1853		2019
1854	/* better take a full copy of the arguments */	2020	/* better take a full copy of the arguments */
1855	while (items--)	2021	while (items--)
1856	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);
1857	}	2026	}
1858		2027
1859	XSRETURN_EMPTY;	2028	XSRETURN_EMPTY;
1860	}	2029	}
1861		2030
…		…
1878		2047
1879	EXTEND (SP, AvFILLp (av) + 1);	2048	EXTEND (SP, AvFILLp (av) + 1);
1880	for (i = 0; i <= AvFILLp (av); ++i)	2049	for (i = 0; i <= AvFILLp (av); ++i)
1881	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2050	PUSHs (sv_2mortal (AvARRAY (av)[i]));
1882		2051
1883	/* 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 */
1884	AvFILLp (av) = -1;	2053	AvFILLp (av) = -1;
1885	av_undef (av);	2054	av_undef (av);
1886		2055
1887	PUTBACK;	2056	PUTBACK;
1888	}	2057	}
…		…
1992	static void	2161	static void
1993	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)
1994	{	2163	{
1995	frame->prepare = prepare_schedule;	2164	frame->prepare = prepare_schedule;
1996	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);
1997	}	2194	}
1998		2195
1999	static void	2196	static void
2000	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)
2001	{	2198	{
…		…
2147	}	2344	}
2148	else	2345	else
2149	slf_argc = 0;	2346	slf_argc = 0;
2150		2347
2151	PL_op->op_ppaddr = pp_slf;	2348	PL_op->op_ppaddr = pp_slf;
2152	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 */
2153		2350
2154	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));
2155	}	2399	}
2156		2400
2157	/*****************************************************************************/	2401	/*****************************************************************************/
2158	/* PerlIO::cede */	2402	/* PerlIO::cede */
2159		2403
…		…
2233	/* Coro::Semaphore & Coro::Signal */	2477	/* Coro::Semaphore & Coro::Signal */
2234		2478
2235	static SV *	2479	static SV *
2236	coro_waitarray_new (pTHX_ int count)	2480	coro_waitarray_new (pTHX_ int count)
2237	{	2481	{
2238	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	2482	/* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2239	AV *av = newAV ();	2483	AV *av = newAV ();
2240	SV **ary;	2484	SV **ary;
2241		2485
2242	/* unfortunately, building manually saves memory */	2486	/* unfortunately, building manually saves memory */
2243	Newx (ary, 2, SV *);	2487	Newx (ary, 2, SV *);
2244	AvALLOC (av) = ary;	2488	AvALLOC (av) = ary;
		2489	#if PERL_VERSION_ATLEAST (5,10,0)
2245	/*AvARRAY (av) = ary;*/	2490	AvARRAY (av) = ary;
		2491	#else
2246	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
2247	AvMAX (av) = 1;	2496	AvMAX (av) = 1;
2248	AvFILLp (av) = 0;	2497	AvFILLp (av) = 0;
2249	ary [0] = newSViv (count);	2498	ary [0] = newSViv (count);
2250		2499
2251	return newRV_noinc ((SV *)av);	2500	return newRV_noinc ((SV *)av);
…		…
2621	XSRETURN_EMPTY;	2870	XSRETURN_EMPTY;
2622	}	2871	}
2623		2872
2624	/*****************************************************************************/	2873	/*****************************************************************************/
2625		2874
		2875	#if CORO_CLONE
		2876	# include "clone.c"
		2877	#endif
		2878
2626	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	2879	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2627		2880
2628	PROTOTYPES: DISABLE	2881	PROTOTYPES: DISABLE
2629		2882
2630	BOOT:	2883	BOOT:
…		…
2634	coro_thx = PERL_GET_CONTEXT;	2887	coro_thx = PERL_GET_CONTEXT;
2635	# endif	2888	# endif
2636	#endif	2889	#endif
2637	BOOT_PAGESIZE;	2890	BOOT_PAGESIZE;
2638		2891
		2892	cctx_current = cctx_new_empty ();
		2893
2639	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);	2894	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2640	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);	2895	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2641		2896
2642	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;
2643	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;
…		…
2662		2917
2663	{	2918	{
2664	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));	2919	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2665		2920
2666	if (!PL_custom_op_names) PL_custom_op_names = newHV ();	2921	if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2667	hv_store_ent (PL_custom_op_names, slf,	2922	hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2668	newSVpv ("coro_slf", 0), 0);
2669		2923
2670	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();	2924	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2671	hv_store_ent (PL_custom_op_descs, slf,	2925	hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2672	newSVpv ("coro schedule like function", 0), 0);
2673	}	2926	}
2674		2927
2675	coroapi.ver = CORO_API_VERSION;	2928	coroapi.ver = CORO_API_VERSION;
2676	coroapi.rev = CORO_API_REVISION;	2929	coroapi.rev = CORO_API_REVISION;
2677		2930
…		…
2770	void	3023	void
2771	_exit (int code)	3024	_exit (int code)
2772	PROTOTYPE: $	3025	PROTOTYPE: $
2773	CODE:	3026	CODE:
2774	_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
2775		3047
2776	int	3048	int
2777	cctx_stacksize (int new_stacksize = 0)	3049	cctx_stacksize (int new_stacksize = 0)
2778	PROTOTYPE: ;$	3050	PROTOTYPE: ;$
2779	CODE:	3051	CODE:
…		…
2829	eval = 1	3101	eval = 1
2830	CODE:	3102	CODE:
2831	{	3103	{
2832	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3104	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2833	{	3105	{
2834	struct coro temp;	3106	struct coro *current = SvSTATE_current;
2835		3107
2836	if (!(coro->flags & CF_RUNNING))	3108	if (current != coro)
2837	{	3109	{
2838	PUTBACK;	3110	PUTBACK;
2839	save_perl (aTHX_ &temp);	3111	save_perl (aTHX_ current);
2840	load_perl (aTHX_ coro);	3112	load_perl (aTHX_ coro);
		3113	SPAGAIN;
2841	}	3114	}
2842		3115
2843	{
2844	dSP;
2845	ENTER;
2846	SAVETMPS;
2847	PUTBACK;
2848	PUSHSTACK;	3116	PUSHSTACK;
		3117
2849	PUSHMARK (SP);	3118	PUSHMARK (SP);
		3119	PUTBACK;
2850		3120
2851	if (ix)	3121	if (ix)
2852	eval_sv (coderef, 0);	3122	eval_sv (coderef, 0);
2853	else	3123	else
2854	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3124	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2855		3125
2856	POPSTACK;	3126	POPSTACK;
2857	SPAGAIN;	3127	SPAGAIN;
2858	FREETMPS;
2859	LEAVE;
2860	PUTBACK;
2861	}
2862		3128
2863	if (!(coro->flags & CF_RUNNING))	3129	if (current != coro)
2864	{	3130	{
		3131	PUTBACK;
2865	save_perl (aTHX_ coro);	3132	save_perl (aTHX_ coro);
2866	load_perl (aTHX_ &temp);	3133	load_perl (aTHX_ current);
2867	SPAGAIN;	3134	SPAGAIN;
2868	}	3135	}
2869	}	3136	}
2870	}	3137	}
2871		3138
…		…
2875	ALIAS:	3142	ALIAS:
2876	is_ready = CF_READY	3143	is_ready = CF_READY
2877	is_running = CF_RUNNING	3144	is_running = CF_RUNNING
2878	is_new = CF_NEW	3145	is_new = CF_NEW
2879	is_destroyed = CF_DESTROYED	3146	is_destroyed = CF_DESTROYED
		3147	is_suspended = CF_SUSPENDED
2880	CODE:	3148	CODE:
2881	RETVAL = boolSV (coro->flags & ix);	3149	RETVAL = boolSV (coro->flags & ix);
2882	OUTPUT:	3150	OUTPUT:
2883	RETVAL	3151	RETVAL
2884		3152
…		…
2900		3168
2901	SV *	3169	SV *
2902	has_cctx (Coro::State coro)	3170	has_cctx (Coro::State coro)
2903	PROTOTYPE: $	3171	PROTOTYPE: $
2904	CODE:	3172	CODE:
2905	RETVAL = boolSV (!!coro->cctx);	3173	/* maybe manage the running flag differently */
		3174	RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2906	OUTPUT:	3175	OUTPUT:
2907	RETVAL	3176	RETVAL
2908		3177
2909	int	3178	int
2910	is_traced (Coro::State coro)	3179	is_traced (Coro::State coro)
…		…
2930		3199
2931	void	3200	void
2932	force_cctx ()	3201	force_cctx ()
2933	PROTOTYPE:	3202	PROTOTYPE:
2934	CODE:	3203	CODE:
2935	SvSTATE_current->cctx->idle_sp = 0;	3204	cctx_current->idle_sp = 0;
2936		3205
2937	void	3206	void
2938	swap_defsv (Coro::State self)	3207	swap_defsv (Coro::State self)
2939	PROTOTYPE: $	3208	PROTOTYPE: $
2940	ALIAS:	3209	ALIAS:
…		…
2948	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;	3217	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2949		3218
2950	SV *tmp = *src; *src = *dst; *dst = tmp;	3219	SV *tmp = *src; *src = *dst; *dst = tmp;
2951	}	3220	}
2952		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
2953		3228
2954	MODULE = Coro::State PACKAGE = Coro	3229	MODULE = Coro::State PACKAGE = Coro
2955		3230
2956	BOOT:	3231	BOOT:
2957	{	3232	{
2958	int i;
2959
2960	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2961	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3233	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2962	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3234	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2963	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);	3235	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
2964	cv_coro_terminate = get_cv ( "Coro::terminate", GV_ADD);	3236	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2965	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE);	3237	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2966	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);
2967		3242
2968	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	3243	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
2969	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	3244	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
2970	cv_pool_handler = get_cv ("Coro::_pool_handler", 0); SvREADONLY_on (cv_pool_handler);	3245	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
2971	cv_coro_new = get_cv ("Coro::new", 0); SvREADONLY_on (cv_coro_new);	3246	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2972		3247
2973	coro_stash = gv_stashpv ("Coro", TRUE);	3248	coro_stash = gv_stashpv ("Coro", TRUE);
2974		3249
2975	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3250	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
2976	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3251	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
2977	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3252	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
2978	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3253	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
2979	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3254	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
2980	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3255	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
2981		3256
2982	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
2983	coro_ready[i] = newAV ();
2984
2985	{	3257	{
2986	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3258	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2987		3259
2988	coroapi.schedule = api_schedule;	3260	coroapi.schedule = api_schedule;
		3261	coroapi.schedule_to = api_schedule_to;
2989	coroapi.cede = api_cede;	3262	coroapi.cede = api_cede;
2990	coroapi.cede_notself = api_cede_notself;	3263	coroapi.cede_notself = api_cede_notself;
2991	coroapi.ready = api_ready;	3264	coroapi.ready = api_ready;
2992	coroapi.is_ready = api_is_ready;	3265	coroapi.is_ready = api_is_ready;
2993	coroapi.nready = coro_nready;	3266	coroapi.nready = coro_nready;
…		…
2998	SvREADONLY_on (sv);	3271	SvREADONLY_on (sv);
2999	}	3272	}
3000	}	3273	}
3001		3274
3002	void	3275	void
		3276	terminate (...)
		3277	CODE:
		3278	CORO_EXECUTE_SLF_XS (slf_init_terminate);
		3279
		3280	void
3003	schedule (...)	3281	schedule (...)
3004	CODE:	3282	CODE:
3005	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);
3006		3294
3007	void	3295	void
3008	cede (...)	3296	cede (...)
3009	CODE:	3297	CODE:
3010	CORO_EXECUTE_SLF_XS (slf_init_cede);	3298	CORO_EXECUTE_SLF_XS (slf_init_cede);
…		…
3066	RETVAL = coro_nready;	3354	RETVAL = coro_nready;
3067	OUTPUT:	3355	OUTPUT:
3068	RETVAL	3356	RETVAL
3069		3357
3070	void	3358	void
		3359	suspend (Coro::State self)
		3360	PROTOTYPE: $
		3361	CODE:
		3362	self->flags |= CF_SUSPENDED;
		3363
		3364	void
		3365	resume (Coro::State self)
		3366	PROTOTYPE: $
		3367	CODE:
		3368	self->flags &= ~CF_SUSPENDED;
		3369
		3370	void
3071	_pool_handler (...)	3371	_pool_handler (...)
3072	CODE:	3372	CODE:
3073	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);	3373	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3074		3374
3075	void	3375	void
…		…
3091	PUSHMARK (SP);	3391	PUSHMARK (SP);
3092	EXTEND (SP, 2);	3392	EXTEND (SP, 2);
3093	PUSHs (sv_Coro);	3393	PUSHs (sv_Coro);
3094	PUSHs ((SV *)cv_pool_handler);	3394	PUSHs ((SV *)cv_pool_handler);
3095	PUTBACK;	3395	PUTBACK;
3096	call_sv (cv_coro_new, G_SCALAR);	3396	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3097	SPAGAIN;	3397	SPAGAIN;
3098		3398
3099	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));	3399	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
3100	}	3400	}
3101		3401
…		…
3106	assert (!coro->invoke_av);	3406	assert (!coro->invoke_av);
3107	coro->invoke_cb = SvREFCNT_inc (cb);	3407	coro->invoke_cb = SvREFCNT_inc (cb);
3108	coro->invoke_av = av;	3408	coro->invoke_av = av;
3109	}	3409	}
3110		3410
3111	api_ready ((SV *)hv);	3411	api_ready (aTHX_ (SV *)hv);
3112		3412
3113	if (GIMME_V != G_VOID)	3413	if (GIMME_V != G_VOID)
3114	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));	3414	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3115	else	3415	else
3116	SvREFCNT_dec (hv);	3416	SvREFCNT_dec (hv);
…		…
3127	void	3427	void
3128	rouse_wait (...)	3428	rouse_wait (...)
3129	PROTOTYPE: ;$	3429	PROTOTYPE: ;$
3130	PPCODE:	3430	PPCODE:
3131	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	}
3132		3457
3133		3458
3134	MODULE = Coro::State PACKAGE = PerlIO::cede	3459	MODULE = Coro::State PACKAGE = PerlIO::cede
3135		3460
3136	BOOT:	3461	BOOT:
…		…
3147	GvSTASH (CvGV (cv))	3472	GvSTASH (CvGV (cv))
3148	);	3473	);
3149	OUTPUT:	3474	OUTPUT:
3150	RETVAL	3475	RETVAL
3151		3476
3152	# helper for Coro::Channel	3477	# helper for Coro::Channel and others
3153	SV *	3478	SV *
3154	_alloc (int count)	3479	_alloc (int count)
3155	CODE:	3480	CODE:
3156	RETVAL = coro_waitarray_new (aTHX_ count);	3481	RETVAL = coro_waitarray_new (aTHX_ count);
3157	OUTPUT:	3482	OUTPUT:
…		…
3215	for (i = 1; i <= wcount; ++i)	3540	for (i = 1; i <= wcount; ++i)
3216	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3541	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3217	}	3542	}
3218	}	3543	}
3219		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
3220	MODULE = Coro::State PACKAGE = Coro::Signal	3561	MODULE = Coro::State PACKAGE = Coro::Signal
3221		3562
3222	SV *	3563	SV *
3223	new (SV *klass)	3564	new (SV *klass)
3224	CODE:	3565	CODE:

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