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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.200 by root, Sun Oct 7 15:08:23 2007 UTC vs.
Revision 1.252 by root, Tue Nov 4 12:08:44 2008 UTC

…		…
4	#define PERL_EXT	4	#define PERL_EXT
5		5
6	#include "EXTERN.h"	6	#include "EXTERN.h"
7	#include "perl.h"	7	#include "perl.h"
8	#include "XSUB.h"	8	#include "XSUB.h"
		9	#include "perliol.h"
9		10
10	#include "patchlevel.h"	11	#include "patchlevel.h"
11		12
12	#include <stdio.h>	13	#include <stdio.h>
13	#include <errno.h>	14	#include <errno.h>
14	#include <assert.h>	15	#include <assert.h>
		16
		17	#ifdef WIN32
		18	# undef setjmp
		19	# undef longjmp
		20	# undef _exit
		21	# define setjmp _setjmp // deep magic, don't ask
		22	#else
		23	# include <inttypes.h> /* most portable stdint.h */
		24	#endif
15		25
16	#ifdef HAVE_MMAP	26	#ifdef HAVE_MMAP
17	# include <unistd.h>	27	# include <unistd.h>
18	# include <sys/mman.h>	28	# include <sys/mman.h>
19	# ifndef MAP_ANONYMOUS	29	# ifndef MAP_ANONYMOUS
…		…
71	# ifndef IS_PADCONST	81	# ifndef IS_PADCONST
72	# define IS_PADCONST(v) 0	82	# define IS_PADCONST(v) 0
73	# endif	83	# endif
74	#endif	84	#endif
75		85
		86	/* 5.11 */
		87	#ifndef CxHASARGS
		88	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
		89	#endif
		90
		91	/* 5.10.0 */
		92	#ifndef SvREFCNT_inc_NN
		93	# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
		94	#endif
		95
		96	/* 5.8.8 */
		97	#ifndef GV_NOTQUAL
		98	# define GV_NOTQUAL 0
		99	#endif
		100	#ifndef newSV
		101	# define newSV(l) NEWSV(0,l)
		102	#endif
		103
76	/* 5.8.7 */	104	/* 5.8.7 */
77	#ifndef SvRV_set	105	#ifndef SvRV_set
78	# define SvRV_set(s,v) SvRV(s) = (v)	106	# define SvRV_set(s,v) SvRV(s) = (v)
79	#endif
80
81	/* 5.8.8 */
82	#ifndef GV_NOTQUAL
83	# define GV_NOTQUAL 0
84	#endif
85	#ifndef newSV
86	# define newSV(l) NEWSV(0,l)
87	#endif	107	#endif
88		108
89	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	109	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
90	# undef CORO_STACKGUARD	110	# undef CORO_STACKGUARD
91	#endif	111	#endif
…		…
130	#else	150	#else
131	# define LOCK (void)0	151	# define LOCK (void)0
132	# define UNLOCK (void)0	152	# define UNLOCK (void)0
133	#endif	153	#endif
134		154
135	#define strpair(const) const, sizeof (const) - 1
136
137	/* helper storage struct for Coro::AIO */	155	/* helper storage struct for Coro::AIO */
138	struct io_state	156	struct io_state
139	{	157	{
		158	AV *res;
140	int errorno;	159	int errorno;
141	I32 laststype;	160	I32 laststype;
142	int laststatval;	161	int laststatval;
143	Stat_t statcache;	162	Stat_t statcache;
144	};	163	};
145		164
		165	static double (*nvtime)(); /* so why doesn't it take void? */
		166
146	static size_t coro_stacksize = CORO_STACKSIZE;	167	static size_t coro_stacksize = CORO_STACKSIZE;
147	static struct CoroAPI coroapi;	168	static struct CoroAPI coroapi;
148	static AV *main_mainstack; /* used to differentiate between $main and others */	169	static AV *main_mainstack; /* used to differentiate between $main and others */
149	static JMPENV *main_top_env;	170	static JMPENV *main_top_env;
150	static HV *coro_state_stash, *coro_stash;	171	static HV *coro_state_stash, *coro_stash;
151	static SV *coro_mortal; /* will be freed after next transfer */	172	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
152		173
153	static GV *irsgv; /* $/ */	174	static GV *irsgv; /* $/ */
154	static GV *stdoutgv; /* *STDOUT */	175	static GV *stdoutgv; /* *STDOUT */
155		176	static SV *rv_diehook;
		177	static SV *rv_warnhook;
156	static HV *hv_sig; /* %SIG */	178	static HV *hv_sig; /* %SIG */
157	static SV *sv_diehook;
158	static SV *sv_warnhook;
159		179
160	/* async_pool helper stuff */	180	/* async_pool helper stuff */
161	static SV *sv_pool_rss;	181	static SV *sv_pool_rss;
162	static SV *sv_pool_size;	182	static SV *sv_pool_size;
163	static AV *av_async_pool;	183	static AV *av_async_pool;
		184
		185	/* Coro::AnyEvent */
		186	static SV *sv_activity;
164		187
165	static struct coro_cctx *cctx_first;	188	static struct coro_cctx *cctx_first;
166	static int cctx_count, cctx_idle;	189	static int cctx_count, cctx_idle;
167		190
168	enum {	191	enum {
…		…
221		244
222	/* process data */	245	/* process data */
223	AV *mainstack;	246	AV *mainstack;
224	perl_slots *slot; /* basically the saved sp */	247	perl_slots *slot; /* basically the saved sp */
225		248
226	/* data associated with this coroutine (initial args) */	249	AV *args; /* data associated with this coroutine (initial args) */
227	AV *args;	250	int refcnt; /* coroutines are refcounted, yes */
228	int refcnt;
229	int flags; /* CF_ flags */	251	int flags; /* CF_ flags */
		252	HV *hv; /* the perl hash associated with this coro, if any */
230		253
231	/* statistics */	254	/* statistics */
232	int usecount; /* number of transfers to this coro */	255	int usecount; /* number of transfers to this coro */
233		256
234	/* coro process data */	257	/* coro process data */
235	int prio;	258	int prio;
236	SV *throw;	259	SV *throw; /* exception to be thrown */
237		260
238	/* async_pool */	261	/* async_pool */
239	SV *saved_deffh;	262	SV *saved_deffh;
240		263
241	/* linked list */	264	/* linked list */
242	struct coro *next, *prev;	265	struct coro *next, *prev;
243	HV *hv; /* the perl hash associated with this coro, if any */
244	};	266	};
245		267
246	typedef struct coro *Coro__State;	268	typedef struct coro *Coro__State;
247	typedef struct coro *Coro__State_or_hashref;	269	typedef struct coro *Coro__State_or_hashref;
248		270
…		…
255	#define PRIO_IDLE -3	277	#define PRIO_IDLE -3
256	#define PRIO_MIN -4	278	#define PRIO_MIN -4
257		279
258	/* for Coro.pm */	280	/* for Coro.pm */
259	static SV *coro_current;	281	static SV *coro_current;
		282	static SV *coro_readyhook;
260	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	283	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
261	static int coro_nready;	284	static int coro_nready;
262	static struct coro *coro_first;	285	static struct coro *coro_first;
263		286
264	/** lowlevel stuff **********************************************************/	287	/** lowlevel stuff **********************************************************/
265		288
266	static SV *	289	static SV *
267	coro_get_sv (const char *name, int create)	290	coro_get_sv (pTHX_ const char *name, int create)
268	{	291	{
269	#if PERL_VERSION_ATLEAST (5,9,0)	292	#if PERL_VERSION_ATLEAST (5,10,0)
270	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	293	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
271	get_sv (name, create);	294	get_sv (name, create);
272	#endif	295	#endif
273	return get_sv (name, create);	296	return get_sv (name, create);
274	}	297	}
275		298
276	static AV *	299	static AV *
277	coro_get_av (const char *name, int create)	300	coro_get_av (pTHX_ const char *name, int create)
278	{	301	{
279	#if PERL_VERSION_ATLEAST (5,9,0)	302	#if PERL_VERSION_ATLEAST (5,10,0)
280	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	303	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
281	get_av (name, create);	304	get_av (name, create);
282	#endif	305	#endif
283	return get_av (name, create);	306	return get_av (name, create);
284	}	307	}
285		308
286	static HV *	309	static HV *
287	coro_get_hv (const char *name, int create)	310	coro_get_hv (pTHX_ const char *name, int create)
288	{	311	{
289	#if PERL_VERSION_ATLEAST (5,9,0)	312	#if PERL_VERSION_ATLEAST (5,10,0)
290	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	313	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
291	get_hv (name, create);	314	get_hv (name, create);
292	#endif	315	#endif
293	return get_hv (name, create);	316	return get_hv (name, create);
294	}	317	}
…		…
299	AV *padlist = CvPADLIST (cv);	322	AV *padlist = CvPADLIST (cv);
300	AV *newpadlist, *newpad;	323	AV *newpadlist, *newpad;
301		324
302	newpadlist = newAV ();	325	newpadlist = newAV ();
303	AvREAL_off (newpadlist);	326	AvREAL_off (newpadlist);
304	#if PERL_VERSION_ATLEAST (5,9,0)	327	#if PERL_VERSION_ATLEAST (5,10,0)
305	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	328	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
306	#else	329	#else
307	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	330	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
308	#endif	331	#endif
309	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	332	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
310	--AvFILLp (padlist);	333	--AvFILLp (padlist);
311		334
312	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));	335	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));
313	av_store (newpadlist, 1, (SV *)newpad);	336	av_store (newpadlist, 1, (SV *)newpad);
314		337
315	return newpadlist;	338	return newpadlist;
316	}	339	}
317		340
…		…
347		370
348	/* casting is fun. */	371	/* casting is fun. */
349	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	372	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
350	free_padlist (aTHX_ padlist);	373	free_padlist (aTHX_ padlist);
351		374
352	SvREFCNT_dec (av);	375	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
353		376
354	return 0;	377	return 0;
355	}	378	}
356		379
357	#define PERL_MAGIC_coro PERL_MAGIC_ext	380	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		381	#define CORO_MAGIC_type_state PERL_MAGIC_ext
358		382
359	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	383	static MGVTBL coro_cv_vtbl = {
		384	0, 0, 0, 0,
		385	coro_cv_free
		386	};
360		387
361	#define CORO_MAGIC(cv) \	388	#define CORO_MAGIC(sv,type) \
362	SvMAGIC (cv) \	389	SvMAGIC (sv) \
363	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	390	? SvMAGIC (sv)->mg_type == type \
364	? SvMAGIC (cv) \	391	? SvMAGIC (sv) \
365	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	392	: mg_find (sv, type) \
366	: 0	393	: 0
		394
		395	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		396	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
367		397
368	static struct coro *	398	static struct coro *
369	SvSTATE_ (pTHX_ SV *coro)	399	SvSTATE_ (pTHX_ SV *coro)
370	{	400	{
371	HV *stash;	401	HV *stash;
…		…
383	/* very slow, but rare, check */	413	/* very slow, but rare, check */
384	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	414	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
385	croak ("Coro::State object required");	415	croak ("Coro::State object required");
386	}	416	}
387		417
388	mg = CORO_MAGIC (coro);	418	mg = CORO_MAGIC_state (coro);
389	return (struct coro *)mg->mg_ptr;	419	return (struct coro *)mg->mg_ptr;
390	}	420	}
391		421
392	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	422	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
393		423
394	/* the next two functions merely cache the padlists */	424	/* the next two functions merely cache the padlists */
395	static void	425	static void
396	get_padlist (pTHX_ CV *cv)	426	get_padlist (pTHX_ CV *cv)
397	{	427	{
398	MAGIC *mg = CORO_MAGIC (cv);	428	MAGIC *mg = CORO_MAGIC_cv (cv);
399	AV *av;	429	AV *av;
400		430
401	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	431	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
402	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	432	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
403	else	433	else
404	{	434	{
405	#if CORO_PREFER_PERL_FUNCTIONS	435	#if CORO_PREFER_PERL_FUNCTIONS
406	/* this is probably cleaner, but also slower? */	436	/* this is probably cleaner? but also slower! */
		437	/* in practise, it seems to be less stable */
407	CV *cp = Perl_cv_clone (cv);	438	CV *cp = Perl_cv_clone (cv);
408	CvPADLIST (cv) = CvPADLIST (cp);	439	CvPADLIST (cv) = CvPADLIST (cp);
409	CvPADLIST (cp) = 0;	440	CvPADLIST (cp) = 0;
410	SvREFCNT_dec (cp);	441	SvREFCNT_dec (cp);
411	#else	442	#else
…		…
415	}	446	}
416		447
417	static void	448	static void
418	put_padlist (pTHX_ CV *cv)	449	put_padlist (pTHX_ CV *cv)
419	{	450	{
420	MAGIC *mg = CORO_MAGIC (cv);	451	MAGIC *mg = CORO_MAGIC_cv (cv);
421	AV *av;	452	AV *av;
422		453
423	if (expect_false (!mg))	454	if (expect_false (!mg))
424	{	455	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
425	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
426	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
427	mg->mg_virtual = &vtbl_coro;
428	mg->mg_obj = (SV *)newAV ();
429	}
430		456
431	av = (AV *)mg->mg_obj;	457	av = (AV *)mg->mg_obj;
432		458
433	if (expect_false (AvFILLp (av) >= AvMAX (av)))	459	if (expect_false (AvFILLp (av) >= AvMAX (av)))
434	av_extend (av, AvMAX (av) + 1);	460	av_extend (av, AvMAX (av) + 1);
…		…
500		526
501	if (expect_true (CvDEPTH (cv)))	527	if (expect_true (CvDEPTH (cv)))
502	{	528	{
503	EXTEND (SP, 3);	529	EXTEND (SP, 3);
504	PUSHs ((SV *)CvPADLIST (cv));	530	PUSHs ((SV *)CvPADLIST (cv));
505	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	531	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
506	PUSHs ((SV *)cv);	532	PUSHs ((SV *)cv);
507		533
508	CvDEPTH (cv) = 0;	534	CvDEPTH (cv) = 0;
509	get_padlist (aTHX_ cv);	535	get_padlist (aTHX_ cv);
510	}	536	}
…		…
521		547
522	PUTBACK;	548	PUTBACK;
523	}	549	}
524		550
525	/* allocate some space on the context stack for our purposes */	551	/* allocate some space on the context stack for our purposes */
		552	/* we manually unroll here, as usually 2 slots is enough */
		553	if (SLOT_COUNT >= 1) CXINC;
		554	if (SLOT_COUNT >= 2) CXINC;
		555	if (SLOT_COUNT >= 3) CXINC;
526	{	556	{
527	/* we manually unroll here, as usually 2 slots is enough */
528	int i;	557	int i;
529	if (SLOT_COUNT >= 1) CXINC;
530	if (SLOT_COUNT >= 2) CXINC;
531	if (SLOT_COUNT >= 3) CXINC;
532	for (i = 3; i < SLOT_COUNT; ++i)	558	for (i = 3; i < SLOT_COUNT; ++i)
533	CXINC;	559	CXINC;
534
535	cxstack_ix -= SLOT_COUNT; /* undo allocation */
536	}	560	}
		561	cxstack_ix -= SLOT_COUNT; /* undo allocation */
537		562
538	c->mainstack = PL_mainstack;	563	c->mainstack = PL_mainstack;
539		564
540	{	565	{
541	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	566	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
…		…
591		616
592	New(54,PL_savestack,24,ANY);	617	New(54,PL_savestack,24,ANY);
593	PL_savestack_ix = 0;	618	PL_savestack_ix = 0;
594	PL_savestack_max = 24;	619	PL_savestack_max = 24;
595		620
596	#if !PERL_VERSION_ATLEAST (5,9,0)	621	#if !PERL_VERSION_ATLEAST (5,10,0)
597	New(54,PL_retstack,4,OP*);	622	New(54,PL_retstack,4,OP*);
598	PL_retstack_ix = 0;	623	PL_retstack_ix = 0;
599	PL_retstack_max = 4;	624	PL_retstack_max = 4;
600	#endif	625	#endif
601	}	626	}
…		…
624		649
625	Safefree (PL_tmps_stack);	650	Safefree (PL_tmps_stack);
626	Safefree (PL_markstack);	651	Safefree (PL_markstack);
627	Safefree (PL_scopestack);	652	Safefree (PL_scopestack);
628	Safefree (PL_savestack);	653	Safefree (PL_savestack);
629	#if !PERL_VERSION_ATLEAST (5,9,0)	654	#if !PERL_VERSION_ATLEAST (5,10,0)
630	Safefree (PL_retstack);	655	Safefree (PL_retstack);
631	#endif	656	#endif
632	}	657	}
633		658
634	static size_t	659	static size_t
…		…
650	#undef VAR	675	#undef VAR
651	}	676	}
652	else	677	else
653	slot = coro->slot;	678	slot = coro->slot;
654		679
		680	if (slot)
		681	{
655	rss += sizeof (slot->curstackinfo);	682	rss += sizeof (slot->curstackinfo);
656	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	683	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
657	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	684	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
658	rss += slot->tmps_max * sizeof (SV *);	685	rss += slot->tmps_max * sizeof (SV *);
659	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);	686	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
660	rss += slot->scopestack_max * sizeof (I32);	687	rss += slot->scopestack_max * sizeof (I32);
661	rss += slot->savestack_max * sizeof (ANY);	688	rss += slot->savestack_max * sizeof (ANY);
662		689
663	#if !PERL_VERSION_ATLEAST (5,9,0)	690	#if !PERL_VERSION_ATLEAST (5,10,0)
664	rss += slot->retstack_max * sizeof (OP *);	691	rss += slot->retstack_max * sizeof (OP *);
665	#endif	692	#endif
		693	}
666	}	694	}
667		695
668	return rss;	696	return rss;
669	}	697	}
670		698
671	/** coroutine stack handling ************************************************/	699	/** coroutine stack handling ************************************************/
		700
		701	static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg);
		702	static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg);
		703	static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg);
		704
		705	/* apparently < 5.8.8 */
		706	#ifndef MgPV_nolen_const
		707	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
		708	SvPV_nolen((SV*)((mg)->mg_ptr)) : \
		709	(const char*)(mg)->mg_ptr)
		710	#endif
		711
		712	/*
		713	* This overrides the default magic get method of %SIG elements.
		714	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		715	* and instead of tryign to save and restore the hash elements, we just provide
		716	* readback here.
		717	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		718	* not expecting this to actually change the hook. This is a potential problem
		719	* when a schedule happens then, but we ignore this.
		720	*/
		721	static int
		722	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
		723	{
		724	const char *s = MgPV_nolen_const (mg);
		725
		726	if (*s == '_')
		727	{
		728	SV **svp = 0;
		729
		730	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		731	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		732
		733	if (svp)
		734	{
		735	sv_setsv (sv, *svp ? *svp : &PL_sv_undef);
		736	return 0;
		737	}
		738	}
		739
		740	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		741	}
		742
		743	static int
		744	coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
		745	{
		746	const char *s = MgPV_nolen_const (mg);
		747
		748	if (*s == '_')
		749	{
		750	SV **svp = 0;
		751
		752	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		753	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		754
		755	if (svp)
		756	{
		757	SV *old = *svp;
		758	*svp = 0;
		759	SvREFCNT_dec (old);
		760	return 0;
		761	}
		762	}
		763
		764	return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
		765	}
		766
		767	static int
		768	coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
		769	{
		770	const char *s = MgPV_nolen_const (mg);
		771
		772	if (*s == '_')
		773	{
		774	SV **svp = 0;
		775
		776	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		777	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		778
		779	if (svp)
		780	{
		781	SV *old = *svp;
		782	*svp = newSVsv (sv);
		783	SvREFCNT_dec (old);
		784	return 0;
		785	}
		786	}
		787
		788	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		789	}
672		790
673	static void	791	static void
674	coro_setup (pTHX_ struct coro *coro)	792	coro_setup (pTHX_ struct coro *coro)
675	{	793	{
676	/*	794	/*
…		…
685	PL_curpm = 0;	803	PL_curpm = 0;
686	PL_curpad = 0;	804	PL_curpad = 0;
687	PL_localizing = 0;	805	PL_localizing = 0;
688	PL_dirty = 0;	806	PL_dirty = 0;
689	PL_restartop = 0;	807	PL_restartop = 0;
690	SvREFCNT_inc (PL_diehook ); hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);	808	#if PERL_VERSION_ATLEAST (5,10,0)
691	SvREFCNT_inc (PL_warnhook); hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);	809	PL_parser = 0;
		810	#endif
		811
		812	/* recreate the die/warn hooks */
		813	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		814	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
692		815
693	GvSV (PL_defgv) = newSV (0);	816	GvSV (PL_defgv) = newSV (0);
694	GvAV (PL_defgv) = coro->args; coro->args = 0;	817	GvAV (PL_defgv) = coro->args; coro->args = 0;
695	GvSV (PL_errgv) = newSV (0);	818	GvSV (PL_errgv) = newSV (0);
696	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	819	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
697	PL_rs = newSVsv (GvSV (irsgv));	820	PL_rs = newSVsv (GvSV (irsgv));
698	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);	821	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
699		822
700	{	823	{
701	dSP;	824	dSP;
702	LOGOP myop;	825	LOGOP myop;
703		826
…		…
711	PL_op = (OP *)&myop;	834	PL_op = (OP *)&myop;
712	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	835	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
713	SPAGAIN;	836	SPAGAIN;
714	}	837	}
715		838
716	ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */	839	/* this newly created coroutine might be run on an existing cctx which most
		840	* likely was suspended in set_stacklevel, called from entersub.
		841	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		842	* so we ENTER here for symmetry
		843	*/
		844	ENTER;
717	}	845	}
718		846
719	static void	847	static void
720	coro_destroy (pTHX_ struct coro *coro)	848	coro_destroy (pTHX_ struct coro *coro)
721	{	849	{
…		…
794	: cx->blk_gimme == G_SCALAR ? bot + 1	922	: cx->blk_gimme == G_SCALAR ? bot + 1
795	: bot;	923	: bot;
796		924
797	av_extend (av, top - bot);	925	av_extend (av, top - bot);
798	while (bot < top)	926	while (bot < top)
799	av_push (av, SvREFCNT_inc (*bot++));	927	av_push (av, SvREFCNT_inc_NN (*bot++));
800		928
801	PL_runops = RUNOPS_DEFAULT;	929	PL_runops = RUNOPS_DEFAULT;
802	ENTER;	930	ENTER;
803	SAVETMPS;	931	SAVETMPS;
804	EXTEND (SP, 3);	932	EXTEND (SP, 3);
805	PUSHMARK (SP);	933	PUSHMARK (SP);
806	PUSHs (&PL_sv_no);	934	PUSHs (&PL_sv_no);
807	PUSHs (fullname);	935	PUSHs (fullname);
808	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));	936	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
809	PUTBACK;	937	PUTBACK;
810	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);	938	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
811	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	939	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
812	SPAGAIN;	940	SPAGAIN;
813	FREETMPS;	941	FREETMPS;
814	LEAVE;	942	LEAVE;
815	PL_runops = runops_trace;	943	PL_runops = runops_trace;
…		…
842	SAVETMPS;	970	SAVETMPS;
843	EXTEND (SP, 3);	971	EXTEND (SP, 3);
844	PUSHMARK (SP);	972	PUSHMARK (SP);
845	PUSHs (&PL_sv_yes);	973	PUSHs (&PL_sv_yes);
846	PUSHs (fullname);	974	PUSHs (fullname);
847	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	975	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
848	PUTBACK;	976	PUTBACK;
849	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);	977	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
850	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	978	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
851	SPAGAIN;	979	SPAGAIN;
852	FREETMPS;	980	FREETMPS;
853	LEAVE;	981	LEAVE;
854	PL_runops = runops_trace;	982	PL_runops = runops_trace;
…		…
868	PL_runops = RUNOPS_DEFAULT;	996	PL_runops = RUNOPS_DEFAULT;
869	PUSHMARK (SP);	997	PUSHMARK (SP);
870	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));	998	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
871	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));	999	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
872	PUTBACK;	1000	PUTBACK;
873	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0);	1001	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
874	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	1002	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
875	SPAGAIN;	1003	SPAGAIN;
876	FREETMPS;	1004	FREETMPS;
877	LEAVE;	1005	LEAVE;
878	PL_runops = runops_trace;	1006	PL_runops = runops_trace;
…		…
888		1016
889	/* inject a fake call to Coro::State::_cctx_init into the execution */	1017	/* inject a fake call to Coro::State::_cctx_init into the execution */
890	/* _cctx_init should be careful, as it could be called at almost any time */	1018	/* _cctx_init should be careful, as it could be called at almost any time */
891	/* during execution of a perl program */	1019	/* during execution of a perl program */
892	static void NOINLINE	1020	static void NOINLINE
893	prepare_cctx (pTHX_ coro_cctx *cctx)	1021	cctx_prepare (pTHX_ coro_cctx *cctx)
894	{	1022	{
895	dSP;	1023	dSP;
896	LOGOP myop;	1024	LOGOP myop;
897		1025
898	PL_top_env = &PL_start_env;	1026	PL_top_env = &PL_start_env;
…		…
916		1044
917	/*	1045	/*
918	* this is a _very_ stripped down perl interpreter ;)	1046	* this is a _very_ stripped down perl interpreter ;)
919	*/	1047	*/
920	static void	1048	static void
921	coro_run (void *arg)	1049	cctx_run (void *arg)
922	{	1050	{
923	dTHX;	1051	dTHX;
924		1052
925	/* coro_run is the alternative tail of transfer(), so unlock here. */	1053	/* cctx_run is the alternative tail of transfer(), so unlock here. */
926	UNLOCK;	1054	UNLOCK;
927		1055
928	/* we now skip the entersub that lead to transfer() */	1056	/* we now skip the entersub that lead to transfer() */
929	PL_op = PL_op->op_next;	1057	PL_op = PL_op->op_next;
930		1058
931	/* inject a fake subroutine call to cctx_init */	1059	/* inject a fake subroutine call to cctx_init */
932	prepare_cctx (aTHX_ (coro_cctx *)arg);	1060	cctx_prepare (aTHX_ (coro_cctx *)arg);
933		1061
934	/* somebody or something will hit me for both perl_run and PL_restartop */	1062	/* somebody or something will hit me for both perl_run and PL_restartop */
935	PL_restartop = PL_op;	1063	PL_restartop = PL_op;
936	perl_run (PL_curinterp);	1064	perl_run (PL_curinterp);
937		1065
…		…
956	++cctx_count;	1084	++cctx_count;
957		1085
958	Newz (0, cctx, 1, coro_cctx);	1086	Newz (0, cctx, 1, coro_cctx);
959		1087
960	#if HAVE_MMAP	1088	#if HAVE_MMAP
961
962	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1089	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
963	/* mmap supposedly does allocate-on-write for us */	1090	/* mmap supposedly does allocate-on-write for us */
964	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);	1091	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
965		1092
966	if (cctx->sptr != (void *)-1)	1093	if (cctx->sptr != (void *)-1)
…		…
987	stack_start = cctx->sptr;	1114	stack_start = cctx->sptr;
988	stack_size = cctx->ssize;	1115	stack_size = cctx->ssize;
989	}	1116	}
990		1117
991	REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size);	1118	REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size);
992	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1119	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
993		1120
994	return cctx;	1121	return cctx;
995	}	1122	}
996		1123
997	static void	1124	static void
…		…
1069	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1196	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1070		1197
1071	if (expect_false (next->flags & CF_DESTROYED))	1198	if (expect_false (next->flags & CF_DESTROYED))
1072	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1199	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1073		1200
1074	if (
1075	#if PERL_VERSION_ATLEAST (5,9,0)	1201	#if !PERL_VERSION_ATLEAST (5,10,0)
1076	expect_false (PL_parser)
1077	#else
1078	expect_false (PL_lex_state != LEX_NOTPARSING)	1202	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1079	#endif
1080	)
1081	croak ("Coro::State::transfer called while parsing, but this is not supported");	1203	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1204	#endif
1082	}	1205	}
1083	}	1206	}
1084		1207
1085	/* always use the TRANSFER macro */	1208	/* always use the TRANSFER macro */
1086	static void NOINLINE	1209	static void NOINLINE
1087	transfer (pTHX_ struct coro *prev, struct coro *next)	1210	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1088	{	1211	{
1089	dSTACKLEVEL;	1212	dSTACKLEVEL;
1090		1213
1091	/* sometimes transfer is only called to set idle_sp */	1214	/* sometimes transfer is only called to set idle_sp */
1092	if (expect_false (!next))	1215	if (expect_false (!next))
…		…
1094	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1217	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
1095	assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */	1218	assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1096	}	1219	}
1097	else if (expect_true (prev != next))	1220	else if (expect_true (prev != next))
1098	{	1221	{
		1222	static volatile int has_throw;
1099	coro_cctx *prev__cctx;	1223	coro_cctx *prev__cctx;
1100		1224
1101	if (expect_false (prev->flags & CF_NEW))	1225	if (expect_false (prev->flags & CF_NEW))
1102	{	1226	{
1103	/* create a new empty context */	1227	/* create a new empty context */
…		…
1109	prev->flags &= ~CF_RUNNING;	1233	prev->flags &= ~CF_RUNNING;
1110	next->flags |= CF_RUNNING;	1234	next->flags |= CF_RUNNING;
1111		1235
1112	LOCK;	1236	LOCK;
1113		1237
		1238	/* first get rid of the old state */
		1239	save_perl (aTHX_ prev);
		1240
1114	if (expect_false (next->flags & CF_NEW))	1241	if (expect_false (next->flags & CF_NEW))
1115	{	1242	{
1116	/* need to start coroutine */	1243	/* need to start coroutine */
1117	next->flags &= ~CF_NEW;	1244	next->flags &= ~CF_NEW;
1118	/* first get rid of the old state */
1119	save_perl (aTHX_ prev);
1120	/* setup coroutine call */	1245	/* setup coroutine call */
1121	coro_setup (aTHX_ next);	1246	coro_setup (aTHX_ next);
1122	}	1247	}
1123	else	1248	else
1124	{
1125	/* coroutine already started */
1126	save_perl (aTHX_ prev);
1127	load_perl (aTHX_ next);	1249	load_perl (aTHX_ next);
1128	}
1129		1250
1130	prev__cctx = prev->cctx;	1251	prev__cctx = prev->cctx;
1131		1252
1132	/* possibly "free" the cctx */	1253	/* possibly "free" the cctx */
1133	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))	1254	if (expect_true (
		1255	prev__cctx->idle_sp == STACKLEVEL
		1256	&& !(prev__cctx->flags & CC_TRACE)
		1257	&& !force_cctx
		1258	))
1134	{	1259	{
1135	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1260	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1136	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1261	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1137		1262
1138	prev->cctx = 0;	1263	prev->cctx = 0;
1139		1264
1140	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1265	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1141	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1266	/* without this the next cctx_get might destroy the prev__cctx while still in use */
1142	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1267	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1268	if (!next->cctx)
1143	next->cctx = cctx_get (aTHX);	1269	next->cctx = cctx_get (aTHX);
1144		1270
1145	cctx_put (prev__cctx);	1271	cctx_put (prev__cctx);
1146	}	1272	}
1147		1273
1148	++next->usecount;	1274	++next->usecount;
1149		1275
1150	if (expect_true (!next->cctx))	1276	if (expect_true (!next->cctx))
1151	next->cctx = cctx_get (aTHX);	1277	next->cctx = cctx_get (aTHX);
		1278
		1279	has_throw = !!next->throw;
1152		1280
1153	if (expect_false (prev__cctx != next->cctx))	1281	if (expect_false (prev__cctx != next->cctx))
1154	{	1282	{
1155	prev__cctx->top_env = PL_top_env;	1283	prev__cctx->top_env = PL_top_env;
1156	PL_top_env = next->cctx->top_env;	1284	PL_top_env = next->cctx->top_env;
…		…
1158	}	1286	}
1159		1287
1160	free_coro_mortal (aTHX);	1288	free_coro_mortal (aTHX);
1161	UNLOCK;	1289	UNLOCK;
1162		1290
1163	if (expect_false (prev->throw || next->throw))	1291	if (expect_false (has_throw))
1164	{	1292	{
1165	struct coro *coro = SvSTATE (coro_current);	1293	struct coro *coro = SvSTATE (coro_current);
1166		1294
1167	if (coro->throw)	1295	if (coro->throw)
1168	{	1296	{
…		…
1178	struct transfer_args	1306	struct transfer_args
1179	{	1307	{
1180	struct coro *prev, *next;	1308	struct coro *prev, *next;
1181	};	1309	};
1182		1310
1183	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1311	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1184	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1312	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1185		1313
1186	/** high level stuff ********************************************************/	1314	/** high level stuff ********************************************************/
1187		1315
1188	static int	1316	static int
…		…
1282	{	1410	{
1283	dTHX;	1411	dTHX;
1284	struct transfer_args ta;	1412	struct transfer_args ta;
1285		1413
1286	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1414	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1287	TRANSFER (ta);	1415	TRANSFER (ta, 1);
1288	}	1416	}
1289		1417
1290	/** Coro ********************************************************************/	1418	/** Coro ********************************************************************/
1291		1419
1292	static void	1420	static void
…		…
1294	{	1422	{
1295	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1423	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1296	}	1424	}
1297		1425
1298	static SV *	1426	static SV *
1299	coro_deq (pTHX_ int min_prio)	1427	coro_deq (pTHX)
1300	{	1428	{
1301	int prio = PRIO_MAX - PRIO_MIN;	1429	int prio;
1302		1430
1303	min_prio -= PRIO_MIN;
1304	if (min_prio < 0)
1305	min_prio = 0;
1306
1307	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1431	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1308	if (AvFILLp (coro_ready [prio]) >= 0)	1432	if (AvFILLp (coro_ready [prio]) >= 0)
1309	return av_shift (coro_ready [prio]);	1433	return av_shift (coro_ready [prio]);
1310		1434
1311	return 0;	1435	return 0;
1312	}	1436	}
…		…
1314	static int	1438	static int
1315	api_ready (SV *coro_sv)	1439	api_ready (SV *coro_sv)
1316	{	1440	{
1317	dTHX;	1441	dTHX;
1318	struct coro *coro;	1442	struct coro *coro;
		1443	SV *sv_hook;
		1444	void (*xs_hook)(void);
1319		1445
1320	if (SvROK (coro_sv))	1446	if (SvROK (coro_sv))
1321	coro_sv = SvRV (coro_sv);	1447	coro_sv = SvRV (coro_sv);
1322		1448
1323	coro = SvSTATE (coro_sv);	1449	coro = SvSTATE (coro_sv);
…		…
1326	return 0;	1452	return 0;
1327		1453
1328	coro->flags |= CF_READY;	1454	coro->flags |= CF_READY;
1329		1455
1330	LOCK;	1456	LOCK;
		1457
		1458	sv_hook = coro_nready ? 0 : coro_readyhook;
		1459	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1460
1331	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1461	coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv));
1332	++coro_nready;	1462	++coro_nready;
		1463
1333	UNLOCK;	1464	UNLOCK;
		1465
		1466	if (sv_hook)
		1467	{
		1468	dSP;
		1469
		1470	ENTER;
		1471	SAVETMPS;
		1472
		1473	PUSHMARK (SP);
		1474	PUTBACK;
		1475	call_sv (sv_hook, G_DISCARD);
		1476	SPAGAIN;
		1477
		1478	FREETMPS;
		1479	LEAVE;
		1480	}
		1481
		1482	if (xs_hook)
		1483	xs_hook ();
1334		1484
1335	return 1;	1485	return 1;
1336	}	1486	}
1337		1487
1338	static int	1488	static int
…		…
1348	SV *prev_sv, *next_sv;	1498	SV *prev_sv, *next_sv;
1349		1499
1350	for (;;)	1500	for (;;)
1351	{	1501	{
1352	LOCK;	1502	LOCK;
1353	next_sv = coro_deq (aTHX_ PRIO_MIN);	1503	next_sv = coro_deq (aTHX);
1354		1504
1355	/* nothing to schedule: call the idle handler */	1505	/* nothing to schedule: call the idle handler */
1356	if (expect_false (!next_sv))	1506	if (expect_false (!next_sv))
1357	{	1507	{
1358	dSP;	1508	dSP;
…		…
1362	SAVETMPS;	1512	SAVETMPS;
1363		1513
1364	PUSHMARK (SP);	1514	PUSHMARK (SP);
1365	PUTBACK;	1515	PUTBACK;
1366	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1516	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1517	SPAGAIN;
1367		1518
1368	FREETMPS;	1519	FREETMPS;
1369	LEAVE;	1520	LEAVE;
1370	continue;	1521	continue;
1371	}	1522	}
…		…
1426	{	1577	{
1427	dTHX;	1578	dTHX;
1428	struct transfer_args ta;	1579	struct transfer_args ta;
1429		1580
1430	prepare_schedule (aTHX_ &ta);	1581	prepare_schedule (aTHX_ &ta);
1431	TRANSFER (ta);	1582	TRANSFER (ta, 1);
1432	}	1583	}
1433		1584
1434	static int	1585	static int
1435	api_cede (void)	1586	api_cede (void)
1436	{	1587	{
…		…
1439		1590
1440	prepare_cede (aTHX_ &ta);	1591	prepare_cede (aTHX_ &ta);
1441		1592
1442	if (expect_true (ta.prev != ta.next))	1593	if (expect_true (ta.prev != ta.next))
1443	{	1594	{
1444	TRANSFER (ta);	1595	TRANSFER (ta, 1);
1445	return 1;	1596	return 1;
1446	}	1597	}
1447	else	1598	else
1448	return 0;	1599	return 0;
1449	}	1600	}
…		…
1454	dTHX;	1605	dTHX;
1455	struct transfer_args ta;	1606	struct transfer_args ta;
1456		1607
1457	if (prepare_cede_notself (aTHX_ &ta))	1608	if (prepare_cede_notself (aTHX_ &ta))
1458	{	1609	{
1459	TRANSFER (ta);	1610	TRANSFER (ta, 1);
1460	return 1;	1611	return 1;
1461	}	1612	}
1462	else	1613	else
1463	return 0;	1614	return 0;
1464	}	1615	}
…		…
1487	else	1638	else
1488	coro->slot->runops = RUNOPS_DEFAULT;	1639	coro->slot->runops = RUNOPS_DEFAULT;
1489	}	1640	}
1490	}	1641	}
1491		1642
		1643	static int
		1644	coro_gensub_free (pTHX_ SV *sv, MAGIC *mg)
		1645	{
		1646	AV *padlist;
		1647	AV *av = (AV *)mg->mg_obj;
		1648
		1649	abort ();
		1650
		1651	return 0;
		1652	}
		1653
		1654	static MGVTBL coro_gensub_vtbl = {
		1655	0, 0, 0, 0,
		1656	coro_gensub_free
		1657	};
		1658
		1659	/*****************************************************************************/
		1660	/* PerlIO::cede */
		1661
		1662	typedef struct
		1663	{
		1664	PerlIOBuf base;
		1665	NV next, every;
		1666	} PerlIOCede;
		1667
		1668	static IV
		1669	PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
		1670	{
		1671	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1672
		1673	self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
		1674	self->next = nvtime () + self->every;
		1675
		1676	return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
		1677	}
		1678
		1679	static SV *
		1680	PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
		1681	{
		1682	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1683
		1684	return newSVnv (self->every);
		1685	}
		1686
		1687	static IV
		1688	PerlIOCede_flush (pTHX_ PerlIO *f)
		1689	{
		1690	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1691	double now = nvtime ();
		1692
		1693	if (now >= self->next)
		1694	{
		1695	api_cede ();
		1696	self->next = now + self->every;
		1697	}
		1698
		1699	return PerlIOBuf_flush (aTHX_ f);
		1700	}
		1701
		1702	static PerlIO_funcs PerlIO_cede =
		1703	{
		1704	sizeof(PerlIO_funcs),
		1705	"cede",
		1706	sizeof(PerlIOCede),
		1707	PERLIO_K_DESTRUCT | PERLIO_K_RAW,
		1708	PerlIOCede_pushed,
		1709	PerlIOBuf_popped,
		1710	PerlIOBuf_open,
		1711	PerlIOBase_binmode,
		1712	PerlIOCede_getarg,
		1713	PerlIOBase_fileno,
		1714	PerlIOBuf_dup,
		1715	PerlIOBuf_read,
		1716	PerlIOBuf_unread,
		1717	PerlIOBuf_write,
		1718	PerlIOBuf_seek,
		1719	PerlIOBuf_tell,
		1720	PerlIOBuf_close,
		1721	PerlIOCede_flush,
		1722	PerlIOBuf_fill,
		1723	PerlIOBase_eof,
		1724	PerlIOBase_error,
		1725	PerlIOBase_clearerr,
		1726	PerlIOBase_setlinebuf,
		1727	PerlIOBuf_get_base,
		1728	PerlIOBuf_bufsiz,
		1729	PerlIOBuf_get_ptr,
		1730	PerlIOBuf_get_cnt,
		1731	PerlIOBuf_set_ptrcnt,
		1732	};
		1733
		1734
1492	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1735	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1493		1736
1494	PROTOTYPES: DISABLE	1737	PROTOTYPES: DISABLE
1495		1738
1496	BOOT:	1739	BOOT:
…		…
1501	BOOT_PAGESIZE;	1744	BOOT_PAGESIZE;
1502		1745
1503	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);	1746	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1504	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);	1747	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
1505		1748
		1749	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1750	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1751	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
		1752
1506	hv_sig = coro_get_hv ("SIG", TRUE);	1753	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1507	sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE);	1754	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
1508	sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE);	1755	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1509
1510	if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
1511	if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
1512		1756
1513	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1757	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1514		1758
1515	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1759	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1516	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1760	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1521	main_top_env = PL_top_env;	1765	main_top_env = PL_top_env;
1522		1766
1523	while (main_top_env->je_prev)	1767	while (main_top_env->je_prev)
1524	main_top_env = main_top_env->je_prev;	1768	main_top_env = main_top_env->je_prev;
1525		1769
1526	coroapi.ver = CORO_API_VERSION;	1770	coroapi.ver = CORO_API_VERSION;
		1771	coroapi.rev = CORO_API_REVISION;
1527	coroapi.transfer = api_transfer;	1772	coroapi.transfer = api_transfer;
		1773
		1774	{
		1775	SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
		1776
		1777	if (!svp) croak ("Time::HiRes is required");
		1778	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
		1779
		1780	nvtime = INT2PTR (double (*)(), SvIV (*svp));
		1781	}
1528		1782
1529	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1783	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1530	}	1784	}
1531		1785
1532	SV *	1786	SV *
1533	new (char *klass, ...)	1787	new (char *klass, ...)
1534	CODE:	1788	CODE:
1535	{	1789	{
1536	struct coro *coro;	1790	struct coro *coro;
		1791	MAGIC *mg;
1537	HV *hv;	1792	HV *hv;
1538	int i;	1793	int i;
1539		1794
1540	Newz (0, coro, 1, struct coro);	1795	Newz (0, coro, 1, struct coro);
1541	coro->args = newAV ();	1796	coro->args = newAV ();
…		…
1544	if (coro_first) coro_first->prev = coro;	1799	if (coro_first) coro_first->prev = coro;
1545	coro->next = coro_first;	1800	coro->next = coro_first;
1546	coro_first = coro;	1801	coro_first = coro;
1547		1802
1548	coro->hv = hv = newHV ();	1803	coro->hv = hv = newHV ();
1549	sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;	1804	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
		1805	mg->mg_flags |= MGf_DUP;
1550	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1806	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1551		1807
1552	av_extend (coro->args, items - 1);	1808	av_extend (coro->args, items - 1);
1553	for (i = 1; i < items; i++)	1809	for (i = 1; i < items; i++)
1554	av_push (coro->args, newSVsv (ST (i)));	1810	av_push (coro->args, newSVsv (ST (i)));
…		…
1568	Coro::cede_notself = 4	1824	Coro::cede_notself = 4
1569	CODE:	1825	CODE:
1570	{	1826	{
1571	struct transfer_args ta;	1827	struct transfer_args ta;
1572		1828
		1829	PUTBACK;
1573	switch (ix)	1830	switch (ix)
1574	{	1831	{
1575	case 0:	1832	case 0:
1576	ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0)));	1833	ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0)));
1577	ta.next = 0;	1834	ta.next = 0;
1578	break;	1835	break;
1579		1836
1580	case 1:	1837	case 1:
1581	if (items != 2)	1838	if (items != 2)
1582	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1839	croak ("Coro::State::transfer (prev, next) expects two arguments, not %d", items);
1583		1840
1584	prepare_transfer (aTHX_ &ta, ST (0), ST (1));	1841	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1585	break;	1842	break;
1586		1843
1587	case 2:	1844	case 2:
…		…
1596	if (!prepare_cede_notself (aTHX_ &ta))	1853	if (!prepare_cede_notself (aTHX_ &ta))
1597	XSRETURN_EMPTY;	1854	XSRETURN_EMPTY;
1598		1855
1599	break;	1856	break;
1600	}	1857	}
		1858	SPAGAIN;
1601		1859
1602	BARRIER;	1860	BARRIER;
		1861	PUTBACK;
1603	TRANSFER (ta);	1862	TRANSFER (ta, 0);
1604		1863	SPAGAIN; /* might be the sp of a different coroutine now */
1605	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))	1864	/* be extra careful not to ever do anything after TRANSFER */
1606	XSRETURN_YES;
1607	}	1865	}
1608		1866
1609	bool	1867	bool
1610	_destroy (SV *coro_sv)	1868	_destroy (SV *coro_sv)
1611	CODE:	1869	CODE:
1612	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	1870	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1613	OUTPUT:	1871	OUTPUT:
1614	RETVAL	1872	RETVAL
1615		1873
1616	void	1874	void
1617	_exit (code)	1875	_exit (int code)
1618	int code
1619	PROTOTYPE: $	1876	PROTOTYPE: $
1620	CODE:	1877	CODE:
1621	_exit (code);	1878	_exit (code);
1622		1879
1623	int	1880	int
…		…
1657	call (Coro::State coro, SV *coderef)	1914	call (Coro::State coro, SV *coderef)
1658	ALIAS:	1915	ALIAS:
1659	eval = 1	1916	eval = 1
1660	CODE:	1917	CODE:
1661	{	1918	{
1662	if (coro->mainstack)	1919	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
1663	{	1920	{
1664	struct coro temp;	1921	struct coro temp;
1665		1922
1666	if (!(coro->flags & CF_RUNNING))	1923	if (!(coro->flags & CF_RUNNING))
1667	{	1924	{
		1925	PUTBACK;
1668	save_perl (aTHX_ &temp);	1926	save_perl (aTHX_ &temp);
1669	load_perl (aTHX_ coro);	1927	load_perl (aTHX_ coro);
1670	}	1928	}
1671		1929
1672	{	1930	{
1673	dSP;	1931	dSP;
1674	ENTER;	1932	ENTER;
1675	SAVETMPS;	1933	SAVETMPS;
		1934	PUTBACK;
		1935	PUSHSTACK;
1676	PUSHMARK (SP);	1936	PUSHMARK (SP);
1677	PUTBACK;
1678		1937
1679	if (ix)	1938	if (ix)
1680	eval_sv (coderef, 0);	1939	eval_sv (coderef, 0);
1681	else	1940	else
1682	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	1941	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1683		1942
		1943	POPSTACK;
1684	SPAGAIN;	1944	SPAGAIN;
1685	FREETMPS;	1945	FREETMPS;
1686	LEAVE;	1946	LEAVE;
1687	PUTBACK;	1947	PUTBACK;
1688	}	1948	}
1689		1949
1690	if (!(coro->flags & CF_RUNNING))	1950	if (!(coro->flags & CF_RUNNING))
1691	{	1951	{
1692	save_perl (aTHX_ coro);	1952	save_perl (aTHX_ coro);
1693	load_perl (aTHX_ &temp);	1953	load_perl (aTHX_ &temp);
		1954	SPAGAIN;
1694	}	1955	}
1695	}	1956	}
1696	}	1957	}
1697		1958
1698	SV *	1959	SV *
…		…
1710		1971
1711	void	1972	void
1712	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	1973	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1713		1974
1714	SV *	1975	SV *
1715	has_stack (Coro::State coro)	1976	has_cctx (Coro::State coro)
1716	PROTOTYPE: $	1977	PROTOTYPE: $
1717	CODE:	1978	CODE:
1718	RETVAL = boolSV (!!coro->cctx);	1979	RETVAL = boolSV (!!coro->cctx);
1719	OUTPUT:	1980	OUTPUT:
1720	RETVAL	1981	RETVAL
…		…
1739	case 1: RETVAL = coro->usecount; break;	2000	case 1: RETVAL = coro->usecount; break;
1740	}	2001	}
1741	OUTPUT:	2002	OUTPUT:
1742	RETVAL	2003	RETVAL
1743		2004
		2005	void
		2006	force_cctx ()
		2007	CODE:
		2008	struct coro *coro = SvSTATE (coro_current);
		2009	coro->cctx->idle_sp = 0;
		2010
		2011	void
		2012	swap_defsv (Coro::State self)
		2013	PROTOTYPE: $
		2014	ALIAS:
		2015	swap_defav = 1
		2016	CODE:
		2017	if (!self->slot)
		2018	croak ("cannot swap state with coroutine that has no saved state");
		2019	else
		2020	{
		2021	SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv);
		2022	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
		2023
		2024	SV *tmp = *src; *src = *dst; *dst = tmp;
		2025	}
1744		2026
1745	MODULE = Coro::State PACKAGE = Coro	2027	MODULE = Coro::State PACKAGE = Coro
1746		2028
1747	BOOT:	2029	BOOT:
1748	{	2030	{
1749	int i;	2031	int i;
1750		2032
1751	sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE);
1752	sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE);
1753	av_async_pool = coro_get_av ("Coro::async_pool", TRUE);	2033	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		2034	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		2035	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1754		2036
1755	coro_current = coro_get_sv ("Coro::current", FALSE);	2037	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1756	SvREADONLY_on (coro_current);	2038	SvREADONLY_on (coro_current);
1757		2039
1758	coro_stash = gv_stashpv ("Coro", TRUE);	2040	coro_stash = gv_stashpv ("Coro", TRUE);
1759		2041
1760	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	2042	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
…		…
1788	void	2070	void
1789	_set_current (SV *current)	2071	_set_current (SV *current)
1790	PROTOTYPE: $	2072	PROTOTYPE: $
1791	CODE:	2073	CODE:
1792	SvREFCNT_dec (SvRV (coro_current));	2074	SvREFCNT_dec (SvRV (coro_current));
1793	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));	2075	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
		2076
		2077	void
		2078	_set_readyhook (SV *hook)
		2079	PROTOTYPE: $
		2080	CODE:
		2081	LOCK;
		2082	SvREFCNT_dec (coro_readyhook);
		2083	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		2084	UNLOCK;
1794		2085
1795	int	2086	int
1796	prio (Coro::State coro, int newprio = 0)	2087	prio (Coro::State coro, int newprio = 0)
1797	ALIAS:	2088	ALIAS:
1798	nice = 1	2089	nice = 1
…		…
1843	CODE:	2134	CODE:
1844	{	2135	{
1845	struct coro *coro = SvSTATE (coro_current);	2136	struct coro *coro = SvSTATE (coro_current);
1846	HV *hv = (HV *)SvRV (coro_current);	2137	HV *hv = (HV *)SvRV (coro_current);
1847	AV *defav = GvAV (PL_defgv);	2138	AV *defav = GvAV (PL_defgv);
1848	SV *invoke = hv_delete (hv, strpair ("_invoke"), 0);	2139	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1849	AV *invoke_av;	2140	AV *invoke_av;
1850	int i, len;	2141	int i, len;
1851		2142
1852	if (!invoke)	2143	if (!invoke)
		2144	{
		2145	SV *old = PL_diehook;
		2146	PL_diehook = 0;
		2147	SvREFCNT_dec (old);
1853	croak ("\3async_pool terminate\2\n");	2148	croak ("\3async_pool terminate\2\n");
		2149	}
1854		2150
1855	SvREFCNT_dec (coro->saved_deffh);	2151	SvREFCNT_dec (coro->saved_deffh);
1856	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	2152	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1857		2153
1858	hv_store (hv, "desc", sizeof ("desc") - 1,	2154	hv_store (hv, "desc", sizeof ("desc") - 1,
1859	newSVpvn (strpair ("[async_pool]")), 0);	2155	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1860		2156
1861	invoke_av = (AV *)SvRV (invoke);	2157	invoke_av = (AV *)SvRV (invoke);
1862	len = av_len (invoke_av);	2158	len = av_len (invoke_av);
1863		2159
1864	sv_setsv (cb, AvARRAY (invoke_av)[0]);	2160	sv_setsv (cb, AvARRAY (invoke_av)[0]);
1865		2161
1866	if (len > 0)	2162	if (len > 0)
1867	{	2163	{
1868	av_fill (defav, len - 1);	2164	av_fill (defav, len - 1);
1869	for (i = 0; i < len; ++i)	2165	for (i = 0; i < len; ++i)
1870	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));	2166	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));
1871	}	2167	}
1872		2168
1873	SvREFCNT_dec (invoke);	2169	SvREFCNT_dec (invoke);
1874	}	2170	}
1875		2171
…		…
1884	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;	2180	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1885	coro->saved_deffh = 0;	2181	coro->saved_deffh = 0;
1886		2182
1887	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2183	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1888	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2184	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		2185	{
		2186	SV *old = PL_diehook;
		2187	PL_diehook = 0;
		2188	SvREFCNT_dec (old);
1889	croak ("\3async_pool terminate\2\n");	2189	croak ("\3async_pool terminate\2\n");
		2190	}
1890		2191
1891	av_clear (GvAV (PL_defgv));	2192	av_clear (GvAV (PL_defgv));
1892	hv_store ((HV *)SvRV (coro_current), strpair ("desc"),	2193	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1893	newSVpvn (strpair ("[async_pool idle]")), 0);	2194	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1894		2195
1895	coro->prio = 0;	2196	coro->prio = 0;
1896		2197
1897	if (coro->cctx && (coro->cctx->flags & CC_TRACE))	2198	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1898	api_trace (coro_current, 0);	2199	api_trace (coro_current, 0);
1899		2200
1900	av_push (av_async_pool, newSVsv (coro_current));	2201	av_push (av_async_pool, newSVsv (coro_current));
1901	}	2202	}
1902		2203
		2204	#if 0
		2205
		2206	void
		2207	_generator_call (...)
		2208	PROTOTYPE: @
		2209	PPCODE:
		2210	fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
		2211	xxxx
		2212	abort ();
		2213
		2214	SV *
		2215	gensub (SV *sub, ...)
		2216	PROTOTYPE: &;@
		2217	CODE:
		2218	{
		2219	struct coro *coro;
		2220	MAGIC *mg;
		2221	CV *xcv;
		2222	CV *ncv = (CV *)newSV_type (SVt_PVCV);
		2223	int i;
		2224
		2225	CvGV (ncv) = CvGV (cv);
		2226	CvFILE (ncv) = CvFILE (cv);
		2227
		2228	Newz (0, coro, 1, struct coro);
		2229	coro->args = newAV ();
		2230	coro->flags = CF_NEW;
		2231
		2232	av_extend (coro->args, items - 1);
		2233	for (i = 1; i < items; i++)
		2234	av_push (coro->args, newSVsv (ST (i)));
		2235
		2236	CvISXSUB_on (ncv);
		2237	CvXSUBANY (ncv).any_ptr = (void *)coro;
		2238
		2239	xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV));
		2240
		2241	CvXSUB (ncv) = CvXSUB (xcv);
		2242	CvANON_on (ncv);
		2243
		2244	mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0);
		2245	RETVAL = newRV_noinc ((SV *)ncv);
		2246	}
		2247	OUTPUT:
		2248	RETVAL
		2249
		2250	#endif
		2251
1903		2252
1904	MODULE = Coro::State PACKAGE = Coro::AIO	2253	MODULE = Coro::State PACKAGE = Coro::AIO
1905		2254
1906	SV *	2255	void
1907	_get_state ()	2256	_get_state (SV *self)
1908	CODE:	2257	PPCODE:
1909	{	2258	{
1910	struct io_state *data;	2259	AV *defav = GvAV (PL_defgv);
1911		2260	AV *av = newAV ();
		2261	int i;
1912	RETVAL = newSV (sizeof (struct io_state));	2262	SV *data_sv = newSV (sizeof (struct io_state));
1913	data = (struct io_state *)SvPVX (RETVAL);	2263	struct io_state *data = (struct io_state *)SvPVX (data_sv);
1914	SvCUR_set (RETVAL, sizeof (struct io_state));	2264	SvCUR_set (data_sv, sizeof (struct io_state));
1915	SvPOK_only (RETVAL);	2265	SvPOK_only (data_sv);
1916		2266
1917	data->errorno = errno;	2267	data->errorno = errno;
1918	data->laststype = PL_laststype;	2268	data->laststype = PL_laststype;
1919	data->laststatval = PL_laststatval;	2269	data->laststatval = PL_laststatval;
1920	data->statcache = PL_statcache;	2270	data->statcache = PL_statcache;
		2271
		2272	av_extend (av, AvFILLp (defav) + 1 + 1);
		2273
		2274	for (i = 0; i <= AvFILLp (defav); ++i)
		2275	av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i]));
		2276
		2277	av_push (av, data_sv);
		2278
		2279	XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		2280
		2281	api_ready (self);
1921	}	2282	}
1922	OUTPUT:
1923	RETVAL
1924		2283
1925	void	2284	void
1926	_set_state (char *data_)	2285	_set_state (SV *state)
1927	PROTOTYPE: $	2286	PROTOTYPE: $
1928	CODE:	2287	PPCODE:
1929	{	2288	{
1930	struct io_state *data = (void *)data_;	2289	AV *av = (AV *)SvRV (state);
		2290	struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]);
		2291	int i;
1931		2292
1932	errno = data->errorno;	2293	errno = data->errorno;
1933	PL_laststype = data->laststype;	2294	PL_laststype = data->laststype;
1934	PL_laststatval = data->laststatval;	2295	PL_laststatval = data->laststatval;
1935	PL_statcache = data->statcache;	2296	PL_statcache = data->statcache;
1936	}
1937		2297
		2298	EXTEND (SP, AvFILLp (av));
		2299	for (i = 0; i < AvFILLp (av); ++i)
		2300	PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i])));
		2301	}
		2302
		2303
		2304	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2305
		2306	BOOT:
		2307	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2308
		2309	SV *
		2310	_schedule (...)
		2311	PROTOTYPE: @
		2312	CODE:
		2313	{
		2314	static int incede;
		2315
		2316	api_cede_notself ();
		2317
		2318	++incede;
		2319	while (coro_nready >= incede && api_cede ())
		2320	;
		2321
		2322	sv_setsv (sv_activity, &PL_sv_undef);
		2323	if (coro_nready >= incede)
		2324	{
		2325	PUSHMARK (SP);
		2326	PUTBACK;
		2327	call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL);
		2328	SPAGAIN;
		2329	}
		2330
		2331	--incede;
		2332	}
		2333
		2334
		2335	MODULE = Coro::State PACKAGE = PerlIO::cede
		2336
		2337	BOOT:
		2338	PerlIO_define_layer (aTHX_ &PerlIO_cede);

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