ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.204 by root, Mon Oct 8 03:03:39 2007 UTC vs.
Revision 1.253 by root, Fri Nov 7 20:12:26 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
…		…
122	#define NOINLINE attribute ((noinline))	142	#define NOINLINE attribute ((noinline))
123		143
124	#include "CoroAPI.h"	144	#include "CoroAPI.h"
125		145
126	#ifdef USE_ITHREADS	146	#ifdef USE_ITHREADS
127	static perl_mutex coro_mutex;	147	static perl_mutex coro_lock;
128	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	148	# define LOCK do { MUTEX_LOCK (&coro_lock); } while (0)
129	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	149	# define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0)
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 {
…		…
254	#define PRIO_IDLE -3	277	#define PRIO_IDLE -3
255	#define PRIO_MIN -4	278	#define PRIO_MIN -4
256		279
257	/* for Coro.pm */	280	/* for Coro.pm */
258	static SV *coro_current;	281	static SV *coro_current;
		282	static SV *coro_readyhook;
259	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	283	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
260	static int coro_nready;	284	static int coro_nready;
261	static struct coro *coro_first;	285	static struct coro *coro_first;
262		286
263	/** lowlevel stuff **********************************************************/	287	/** lowlevel stuff **********************************************************/
264		288
265	static SV *	289	static SV *
266	coro_get_sv (const char *name, int create)	290	coro_get_sv (pTHX_ const char *name, int create)
267	{	291	{
268	#if PERL_VERSION_ATLEAST (5,9,0)	292	#if PERL_VERSION_ATLEAST (5,10,0)
269	/* 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 */
270	get_sv (name, create);	294	get_sv (name, create);
271	#endif	295	#endif
272	return get_sv (name, create);	296	return get_sv (name, create);
273	}	297	}
274		298
275	static AV *	299	static AV *
276	coro_get_av (const char *name, int create)	300	coro_get_av (pTHX_ const char *name, int create)
277	{	301	{
278	#if PERL_VERSION_ATLEAST (5,9,0)	302	#if PERL_VERSION_ATLEAST (5,10,0)
279	/* 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 */
280	get_av (name, create);	304	get_av (name, create);
281	#endif	305	#endif
282	return get_av (name, create);	306	return get_av (name, create);
283	}	307	}
284		308
285	static HV *	309	static HV *
286	coro_get_hv (const char *name, int create)	310	coro_get_hv (pTHX_ const char *name, int create)
287	{	311	{
288	#if PERL_VERSION_ATLEAST (5,9,0)	312	#if PERL_VERSION_ATLEAST (5,10,0)
289	/* 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 */
290	get_hv (name, create);	314	get_hv (name, create);
291	#endif	315	#endif
292	return get_hv (name, create);	316	return get_hv (name, create);
293	}	317	}
…		…
298	AV *padlist = CvPADLIST (cv);	322	AV *padlist = CvPADLIST (cv);
299	AV *newpadlist, *newpad;	323	AV *newpadlist, *newpad;
300		324
301	newpadlist = newAV ();	325	newpadlist = newAV ();
302	AvREAL_off (newpadlist);	326	AvREAL_off (newpadlist);
303	#if PERL_VERSION_ATLEAST (5,9,0)	327	#if PERL_VERSION_ATLEAST (5,10,0)
304	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	328	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
305	#else	329	#else
306	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	330	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
307	#endif	331	#endif
308	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	332	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
309	--AvFILLp (padlist);	333	--AvFILLp (padlist);
310		334
311	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));	335	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));
312	av_store (newpadlist, 1, (SV *)newpad);	336	av_store (newpadlist, 1, (SV *)newpad);
313		337
314	return newpadlist;	338	return newpadlist;
315	}	339	}
316		340
…		…
346		370
347	/* casting is fun. */	371	/* casting is fun. */
348	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	372	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
349	free_padlist (aTHX_ padlist);	373	free_padlist (aTHX_ padlist);
350		374
351	SvREFCNT_dec (av);	375	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
352		376
353	return 0;	377	return 0;
354	}	378	}
355		379
356	#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
357		382
358	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	};
359		387
360	#define CORO_MAGIC(cv) \	388	#define CORO_MAGIC(sv, type) \
361	SvMAGIC (cv) \	389	SvMAGIC (sv) \
362	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	390	? SvMAGIC (sv)->mg_type == type \
363	? SvMAGIC (cv) \	391	? SvMAGIC (sv) \
364	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	392	: mg_find (sv, type) \
365	: 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)
366		397
367	static struct coro *	398	static struct coro *
368	SvSTATE_ (pTHX_ SV *coro)	399	SvSTATE_ (pTHX_ SV *coro)
369	{	400	{
370	HV *stash;	401	HV *stash;
…		…
382	/* very slow, but rare, check */	413	/* very slow, but rare, check */
383	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	414	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
384	croak ("Coro::State object required");	415	croak ("Coro::State object required");
385	}	416	}
386		417
387	mg = CORO_MAGIC (coro);	418	mg = CORO_MAGIC_state (coro);
388	return (struct coro *)mg->mg_ptr;	419	return (struct coro *)mg->mg_ptr;
389	}	420	}
390		421
391	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	422	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
392		423
393	/* the next two functions merely cache the padlists */	424	/* the next two functions merely cache the padlists */
394	static void	425	static void
395	get_padlist (pTHX_ CV *cv)	426	get_padlist (pTHX_ CV *cv)
396	{	427	{
397	MAGIC *mg = CORO_MAGIC (cv);	428	MAGIC *mg = CORO_MAGIC_cv (cv);
398	AV *av;	429	AV *av;
399		430
400	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	431	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
401	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	432	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
402	else	433	else
403	{	434	{
404	#if CORO_PREFER_PERL_FUNCTIONS	435	#if CORO_PREFER_PERL_FUNCTIONS
405	/* this is probably cleaner, but also slower? */	436	/* this is probably cleaner? but also slower! */
		437	/* in practise, it seems to be less stable */
406	CV *cp = Perl_cv_clone (cv);	438	CV *cp = Perl_cv_clone (cv);
407	CvPADLIST (cv) = CvPADLIST (cp);	439	CvPADLIST (cv) = CvPADLIST (cp);
408	CvPADLIST (cp) = 0;	440	CvPADLIST (cp) = 0;
409	SvREFCNT_dec (cp);	441	SvREFCNT_dec (cp);
410	#else	442	#else
…		…
414	}	446	}
415		447
416	static void	448	static void
417	put_padlist (pTHX_ CV *cv)	449	put_padlist (pTHX_ CV *cv)
418	{	450	{
419	MAGIC *mg = CORO_MAGIC (cv);	451	MAGIC *mg = CORO_MAGIC_cv (cv);
420	AV *av;	452	AV *av;
421		453
422	if (expect_false (!mg))	454	if (expect_false (!mg))
423	{	455	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
424	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
425	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
426	mg->mg_virtual = &vtbl_coro;
427	mg->mg_obj = (SV *)newAV ();
428	}
429		456
430	av = (AV *)mg->mg_obj;	457	av = (AV *)mg->mg_obj;
431		458
432	if (expect_false (AvFILLp (av) >= AvMAX (av)))	459	if (expect_false (AvFILLp (av) >= AvMAX (av)))
433	av_extend (av, AvMAX (av) + 1);	460	av_extend (av, AvMAX (av) + 1);
…		…
451	GvSV (irsgv) = slot->irsgv;	478	GvSV (irsgv) = slot->irsgv;
452		479
453	#define VAR(name,type) PL_ ## name = slot->name;	480	#define VAR(name,type) PL_ ## name = slot->name;
454	# include "state.h"	481	# include "state.h"
455	#undef VAR	482	#undef VAR
456
457	/*hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);*/
458	/*hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);*/
459		483
460	{	484	{
461	dSP;	485	dSP;
462		486
463	CV *cv;	487	CV *cv;
…		…
502		526
503	if (expect_true (CvDEPTH (cv)))	527	if (expect_true (CvDEPTH (cv)))
504	{	528	{
505	EXTEND (SP, 3);	529	EXTEND (SP, 3);
506	PUSHs ((SV *)CvPADLIST (cv));	530	PUSHs ((SV *)CvPADLIST (cv));
507	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	531	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
508	PUSHs ((SV *)cv);	532	PUSHs ((SV *)cv);
509		533
510	CvDEPTH (cv) = 0;	534	CvDEPTH (cv) = 0;
511	get_padlist (aTHX_ cv);	535	get_padlist (aTHX_ cv);
512	}	536	}
…		…
592		616
593	New(54,PL_savestack,24,ANY);	617	New(54,PL_savestack,24,ANY);
594	PL_savestack_ix = 0;	618	PL_savestack_ix = 0;
595	PL_savestack_max = 24;	619	PL_savestack_max = 24;
596		620
597	#if !PERL_VERSION_ATLEAST (5,9,0)	621	#if !PERL_VERSION_ATLEAST (5,10,0)
598	New(54,PL_retstack,4,OP*);	622	New(54,PL_retstack,4,OP*);
599	PL_retstack_ix = 0;	623	PL_retstack_ix = 0;
600	PL_retstack_max = 4;	624	PL_retstack_max = 4;
601	#endif	625	#endif
602	}	626	}
…		…
604		628
605	/*	629	/*
606	* destroy the stacks, the callchain etc...	630	* destroy the stacks, the callchain etc...
607	*/	631	*/
608	static void	632	static void
609	coro_destroy_stacks (pTHX)	633	coro_destruct_stacks (pTHX)
610	{	634	{
611	while (PL_curstackinfo->si_next)	635	while (PL_curstackinfo->si_next)
612	PL_curstackinfo = PL_curstackinfo->si_next;	636	PL_curstackinfo = PL_curstackinfo->si_next;
613		637
614	while (PL_curstackinfo)	638	while (PL_curstackinfo)
…		…
625		649
626	Safefree (PL_tmps_stack);	650	Safefree (PL_tmps_stack);
627	Safefree (PL_markstack);	651	Safefree (PL_markstack);
628	Safefree (PL_scopestack);	652	Safefree (PL_scopestack);
629	Safefree (PL_savestack);	653	Safefree (PL_savestack);
630	#if !PERL_VERSION_ATLEAST (5,9,0)	654	#if !PERL_VERSION_ATLEAST (5,10,0)
631	Safefree (PL_retstack);	655	Safefree (PL_retstack);
632	#endif	656	#endif
633	}	657	}
634		658
635	static size_t	659	static size_t
…		…
651	#undef VAR	675	#undef VAR
652	}	676	}
653	else	677	else
654	slot = coro->slot;	678	slot = coro->slot;
655		679
		680	if (slot)
		681	{
656	rss += sizeof (slot->curstackinfo);	682	rss += sizeof (slot->curstackinfo);
657	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	683	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
658	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 *);
659	rss += slot->tmps_max * sizeof (SV *);	685	rss += slot->tmps_max * sizeof (SV *);
660	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);	686	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
661	rss += slot->scopestack_max * sizeof (I32);	687	rss += slot->scopestack_max * sizeof (I32);
662	rss += slot->savestack_max * sizeof (ANY);	688	rss += slot->savestack_max * sizeof (ANY);
663		689
664	#if !PERL_VERSION_ATLEAST (5,9,0)	690	#if !PERL_VERSION_ATLEAST (5,10,0)
665	rss += slot->retstack_max * sizeof (OP *);	691	rss += slot->retstack_max * sizeof (OP *);
666	#endif	692	#endif
		693	}
667	}	694	}
668		695
669	return rss;	696	return rss;
670	}	697	}
671		698
672	/** 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	}
673		790
674	static void	791	static void
675	coro_setup (pTHX_ struct coro *coro)	792	coro_setup (pTHX_ struct coro *coro)
676	{	793	{
677	/*	794	/*
…		…
686	PL_curpm = 0;	803	PL_curpm = 0;
687	PL_curpad = 0;	804	PL_curpad = 0;
688	PL_localizing = 0;	805	PL_localizing = 0;
689	PL_dirty = 0;	806	PL_dirty = 0;
690	PL_restartop = 0;	807	PL_restartop = 0;
691	PL_diehook = 0; hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);	808	#if PERL_VERSION_ATLEAST (5,10,0)
692	PL_warnhook = 0; 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);
693		815
694	GvSV (PL_defgv) = newSV (0);	816	GvSV (PL_defgv) = newSV (0);
695	GvAV (PL_defgv) = coro->args; coro->args = 0;	817	GvAV (PL_defgv) = coro->args; coro->args = 0;
696	GvSV (PL_errgv) = newSV (0);	818	GvSV (PL_errgv) = newSV (0);
697	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);
698	PL_rs = newSVsv (GvSV (irsgv));	820	PL_rs = newSVsv (GvSV (irsgv));
699	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);	821	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
700		822
701	{	823	{
702	dSP;	824	dSP;
703	LOGOP myop;	825	LOGOP myop;
704		826
…		…
712	PL_op = (OP *)&myop;	834	PL_op = (OP *)&myop;
713	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	835	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
714	SPAGAIN;	836	SPAGAIN;
715	}	837	}
716		838
717	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;
718	}	845	}
719		846
720	static void	847	static void
721	coro_destroy (pTHX_ struct coro *coro)	848	coro_destruct (pTHX_ struct coro *coro)
722	{	849	{
723	if (!IN_DESTRUCT)	850	if (!IN_DESTRUCT)
724	{	851	{
725	/* restore all saved variables and stuff */	852	/* restore all saved variables and stuff */
726	LEAVE_SCOPE (0);	853	LEAVE_SCOPE (0);
…		…
748	SvREFCNT_dec (PL_warnhook);	875	SvREFCNT_dec (PL_warnhook);
749		876
750	SvREFCNT_dec (coro->saved_deffh);	877	SvREFCNT_dec (coro->saved_deffh);
751	SvREFCNT_dec (coro->throw);	878	SvREFCNT_dec (coro->throw);
752		879
753	coro_destroy_stacks (aTHX);	880	coro_destruct_stacks (aTHX);
754	}	881	}
755		882
756	static void	883	static void
757	free_coro_mortal (pTHX)	884	free_coro_mortal (pTHX)
758	{	885	{
…		…
795	: cx->blk_gimme == G_SCALAR ? bot + 1	922	: cx->blk_gimme == G_SCALAR ? bot + 1
796	: bot;	923	: bot;
797		924
798	av_extend (av, top - bot);	925	av_extend (av, top - bot);
799	while (bot < top)	926	while (bot < top)
800	av_push (av, SvREFCNT_inc (*bot++));	927	av_push (av, SvREFCNT_inc_NN (*bot++));
801		928
802	PL_runops = RUNOPS_DEFAULT;	929	PL_runops = RUNOPS_DEFAULT;
803	ENTER;	930	ENTER;
804	SAVETMPS;	931	SAVETMPS;
805	EXTEND (SP, 3);	932	EXTEND (SP, 3);
806	PUSHMARK (SP);	933	PUSHMARK (SP);
807	PUSHs (&PL_sv_no);	934	PUSHs (&PL_sv_no);
808	PUSHs (fullname);	935	PUSHs (fullname);
809	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));	936	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
810	PUTBACK;	937	PUTBACK;
811	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);
812	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);
813	SPAGAIN;	940	SPAGAIN;
814	FREETMPS;	941	FREETMPS;
815	LEAVE;	942	LEAVE;
816	PL_runops = runops_trace;	943	PL_runops = runops_trace;
…		…
843	SAVETMPS;	970	SAVETMPS;
844	EXTEND (SP, 3);	971	EXTEND (SP, 3);
845	PUSHMARK (SP);	972	PUSHMARK (SP);
846	PUSHs (&PL_sv_yes);	973	PUSHs (&PL_sv_yes);
847	PUSHs (fullname);	974	PUSHs (fullname);
848	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);
849	PUTBACK;	976	PUTBACK;
850	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);
851	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);
852	SPAGAIN;	979	SPAGAIN;
853	FREETMPS;	980	FREETMPS;
854	LEAVE;	981	LEAVE;
855	PL_runops = runops_trace;	982	PL_runops = runops_trace;
…		…
869	PL_runops = RUNOPS_DEFAULT;	996	PL_runops = RUNOPS_DEFAULT;
870	PUSHMARK (SP);	997	PUSHMARK (SP);
871	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));	998	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
872	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));	999	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
873	PUTBACK;	1000	PUTBACK;
874	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);
875	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);
876	SPAGAIN;	1003	SPAGAIN;
877	FREETMPS;	1004	FREETMPS;
878	LEAVE;	1005	LEAVE;
879	PL_runops = runops_trace;	1006	PL_runops = runops_trace;
…		…
953	coro_cctx *cctx;	1080	coro_cctx *cctx;
954	void *stack_start;	1081	void *stack_start;
955	size_t stack_size;	1082	size_t stack_size;
956		1083
957	++cctx_count;	1084	++cctx_count;
958
959	Newz (0, cctx, 1, coro_cctx);	1085	Newz (0, cctx, 1, coro_cctx);
960		1086
961	#if HAVE_MMAP	1087	#if HAVE_MMAP
962	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1088	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
963	/* mmap supposedly does allocate-on-write for us */	1089	/* mmap supposedly does allocate-on-write for us */
…		…
999	{	1125	{
1000	if (!cctx)	1126	if (!cctx)
1001	return;	1127	return;
1002		1128
1003	--cctx_count;	1129	--cctx_count;
		1130	coro_destroy (&cctx->cctx);
1004		1131
		1132	/* coro_transfer creates new, empty cctx's */
		1133	if (cctx->sptr)
		1134	{
1005	#if CORO_USE_VALGRIND	1135	#if CORO_USE_VALGRIND
1006	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	1136	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1007	#endif	1137	#endif
1008		1138
1009	#if HAVE_MMAP	1139	#if HAVE_MMAP
1010	if (cctx->flags & CC_MAPPED)	1140	if (cctx->flags & CC_MAPPED)
1011	munmap (cctx->sptr, cctx->ssize);	1141	munmap (cctx->sptr, cctx->ssize);
1012	else	1142	else
1013	#endif	1143	#endif
1014	Safefree (cctx->sptr);	1144	Safefree (cctx->sptr);
		1145	}
1015		1146
1016	Safefree (cctx);	1147	Safefree (cctx);
1017	}	1148	}
1018		1149
1019	/* wether this cctx should be destructed */	1150	/* wether this cctx should be destructed */
…		…
1038	}	1169	}
1039		1170
1040	static void	1171	static void
1041	cctx_put (coro_cctx *cctx)	1172	cctx_put (coro_cctx *cctx)
1042	{	1173	{
		1174	assert (("cctx_put called on non-initialised cctx", cctx->sptr));
		1175
1043	/* free another cctx if overlimit */	1176	/* free another cctx if overlimit */
1044	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))	1177	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
1045	{	1178	{
1046	coro_cctx *first = cctx_first;	1179	coro_cctx *first = cctx_first;
1047	cctx_first = first->next;	1180	cctx_first = first->next;
…		…
1069	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1202	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1070		1203
1071	if (expect_false (next->flags & CF_DESTROYED))	1204	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");	1205	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1073		1206
1074	if (
1075	#if PERL_VERSION_ATLEAST (5,9,0)	1207	#if !PERL_VERSION_ATLEAST (5,10,0)
1076	expect_false (PL_parser)
1077	#else
1078	expect_false (PL_lex_state != LEX_NOTPARSING)	1208	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1079	#endif
1080	)
1081	croak ("Coro::State::transfer called while parsing, but this is not supported");	1209	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1210	#endif
1082	}	1211	}
1083	}	1212	}
1084		1213
1085	/* always use the TRANSFER macro */	1214	/* always use the TRANSFER macro */
1086	static void NOINLINE	1215	static void NOINLINE
1087	transfer (pTHX_ struct coro *prev, struct coro *next)	1216	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1088	{	1217	{
1089	dSTACKLEVEL;	1218	dSTACKLEVEL;
1090		1219
1091	/* sometimes transfer is only called to set idle_sp */	1220	/* sometimes transfer is only called to set idle_sp */
1092	if (expect_false (!next))	1221	if (expect_false (!next))
…		…
1094	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1223	((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 */	1224	assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1096	}	1225	}
1097	else if (expect_true (prev != next))	1226	else if (expect_true (prev != next))
1098	{	1227	{
		1228	static volatile int has_throw;
1099	coro_cctx *prev__cctx;	1229	coro_cctx *prev__cctx;
1100		1230
1101	if (expect_false (prev->flags & CF_NEW))	1231	if (expect_false (prev->flags & CF_NEW))
1102	{	1232	{
1103	/* create a new empty context */	1233	/* create a new empty/source context */
		1234	++cctx_count;
1104	Newz (0, prev->cctx, 1, coro_cctx);	1235	New (0, prev->cctx, 1, coro_cctx);
		1236	prev->cctx->sptr = 0;
		1237	coro_create (&prev->cctx->cctx, 0, 0, 0, 0);
		1238
1105	prev->flags &= ~CF_NEW;	1239	prev->flags &= ~CF_NEW;
1106	prev->flags |= CF_RUNNING;	1240	prev->flags |= CF_RUNNING;
1107	}	1241	}
1108		1242
1109	prev->flags &= ~CF_RUNNING;	1243	prev->flags &= ~CF_RUNNING;
1110	next->flags |= CF_RUNNING;	1244	next->flags |= CF_RUNNING;
1111		1245
1112	LOCK;	1246	LOCK;
		1247
		1248	/* first get rid of the old state */
		1249	save_perl (aTHX_ prev);
1113		1250
1114	if (expect_false (next->flags & CF_NEW))	1251	if (expect_false (next->flags & CF_NEW))
1115	{	1252	{
1116	/* need to start coroutine */	1253	/* need to start coroutine */
1117	next->flags &= ~CF_NEW;	1254	next->flags &= ~CF_NEW;
1118	/* first get rid of the old state */
1119	save_perl (aTHX_ prev);
1120	/* setup coroutine call */	1255	/* setup coroutine call */
1121	coro_setup (aTHX_ next);	1256	coro_setup (aTHX_ next);
1122	}	1257	}
1123	else	1258	else
1124	{
1125	/* coroutine already started */
1126	save_perl (aTHX_ prev);
1127	load_perl (aTHX_ next);	1259	load_perl (aTHX_ next);
1128	}
1129		1260
1130	prev__cctx = prev->cctx;	1261	prev__cctx = prev->cctx;
1131		1262
1132	/* possibly "free" the cctx */	1263	/* possibly "free" the cctx */
1133	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))	1264	if (expect_true (
		1265	prev__cctx->idle_sp == STACKLEVEL
		1266	&& !(prev__cctx->flags & CC_TRACE)
		1267	&& !force_cctx
		1268	))
1134	{	1269	{
1135	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1270	/* 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));	1271	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1137		1272
1138	prev->cctx = 0;	1273	prev->cctx = 0;
…		…
1148		1283
1149	++next->usecount;	1284	++next->usecount;
1150		1285
1151	if (expect_true (!next->cctx))	1286	if (expect_true (!next->cctx))
1152	next->cctx = cctx_get (aTHX);	1287	next->cctx = cctx_get (aTHX);
		1288
		1289	has_throw = !!next->throw;
1153		1290
1154	if (expect_false (prev__cctx != next->cctx))	1291	if (expect_false (prev__cctx != next->cctx))
1155	{	1292	{
1156	prev__cctx->top_env = PL_top_env;	1293	prev__cctx->top_env = PL_top_env;
1157	PL_top_env = next->cctx->top_env;	1294	PL_top_env = next->cctx->top_env;
…		…
1159	}	1296	}
1160		1297
1161	free_coro_mortal (aTHX);	1298	free_coro_mortal (aTHX);
1162	UNLOCK;	1299	UNLOCK;
1163		1300
1164	if (expect_false (prev->throw || next->throw))	1301	if (expect_false (has_throw))
1165	{	1302	{
1166	struct coro *coro = SvSTATE (coro_current);	1303	struct coro *coro = SvSTATE (coro_current);
1167		1304
1168	if (coro->throw)	1305	if (coro->throw)
1169	{	1306	{
…		…
1179	struct transfer_args	1316	struct transfer_args
1180	{	1317	{
1181	struct coro *prev, *next;	1318	struct coro *prev, *next;
1182	};	1319	};
1183		1320
1184	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1321	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1185	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1322	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1186		1323
1187	/** high level stuff ********************************************************/	1324	/** high level stuff ********************************************************/
1188		1325
1189	static int	1326	static int
…		…
1213	croak ("FATAL: tried to destroy currently running coroutine");	1350	croak ("FATAL: tried to destroy currently running coroutine");
1214		1351
1215	save_perl (aTHX_ &temp);	1352	save_perl (aTHX_ &temp);
1216	load_perl (aTHX_ coro);	1353	load_perl (aTHX_ coro);
1217		1354
1218	coro_destroy (aTHX_ coro);	1355	coro_destruct (aTHX_ coro);
1219		1356
1220	load_perl (aTHX_ &temp);	1357	load_perl (aTHX_ &temp);
1221		1358
1222	coro->slot = 0;	1359	coro->slot = 0;
1223	}	1360	}
…		…
1283	{	1420	{
1284	dTHX;	1421	dTHX;
1285	struct transfer_args ta;	1422	struct transfer_args ta;
1286		1423
1287	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1424	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1288	TRANSFER (ta);	1425	TRANSFER (ta, 1);
1289	}	1426	}
1290		1427
1291	/** Coro ********************************************************************/	1428	/** Coro ********************************************************************/
1292		1429
1293	static void	1430	static void
…		…
1295	{	1432	{
1296	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1433	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1297	}	1434	}
1298		1435
1299	static SV *	1436	static SV *
1300	coro_deq (pTHX_ int min_prio)	1437	coro_deq (pTHX)
1301	{	1438	{
1302	int prio = PRIO_MAX - PRIO_MIN;	1439	int prio;
1303		1440
1304	min_prio -= PRIO_MIN;
1305	if (min_prio < 0)
1306	min_prio = 0;
1307
1308	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1441	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1309	if (AvFILLp (coro_ready [prio]) >= 0)	1442	if (AvFILLp (coro_ready [prio]) >= 0)
1310	return av_shift (coro_ready [prio]);	1443	return av_shift (coro_ready [prio]);
1311		1444
1312	return 0;	1445	return 0;
1313	}	1446	}
…		…
1315	static int	1448	static int
1316	api_ready (SV *coro_sv)	1449	api_ready (SV *coro_sv)
1317	{	1450	{
1318	dTHX;	1451	dTHX;
1319	struct coro *coro;	1452	struct coro *coro;
		1453	SV *sv_hook;
		1454	void (*xs_hook)(void);
1320		1455
1321	if (SvROK (coro_sv))	1456	if (SvROK (coro_sv))
1322	coro_sv = SvRV (coro_sv);	1457	coro_sv = SvRV (coro_sv);
1323		1458
1324	coro = SvSTATE (coro_sv);	1459	coro = SvSTATE (coro_sv);
…		…
1327	return 0;	1462	return 0;
1328		1463
1329	coro->flags |= CF_READY;	1464	coro->flags |= CF_READY;
1330		1465
1331	LOCK;	1466	LOCK;
		1467
		1468	sv_hook = coro_nready ? 0 : coro_readyhook;
		1469	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1470
1332	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1471	coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv));
1333	++coro_nready;	1472	++coro_nready;
		1473
1334	UNLOCK;	1474	UNLOCK;
		1475
		1476	if (sv_hook)
		1477	{
		1478	dSP;
		1479
		1480	ENTER;
		1481	SAVETMPS;
		1482
		1483	PUSHMARK (SP);
		1484	PUTBACK;
		1485	call_sv (sv_hook, G_DISCARD);
		1486	SPAGAIN;
		1487
		1488	FREETMPS;
		1489	LEAVE;
		1490	}
		1491
		1492	if (xs_hook)
		1493	xs_hook ();
1335		1494
1336	return 1;	1495	return 1;
1337	}	1496	}
1338		1497
1339	static int	1498	static int
…		…
1349	SV *prev_sv, *next_sv;	1508	SV *prev_sv, *next_sv;
1350		1509
1351	for (;;)	1510	for (;;)
1352	{	1511	{
1353	LOCK;	1512	LOCK;
1354	next_sv = coro_deq (aTHX_ PRIO_MIN);	1513	next_sv = coro_deq (aTHX);
1355		1514
1356	/* nothing to schedule: call the idle handler */	1515	/* nothing to schedule: call the idle handler */
1357	if (expect_false (!next_sv))	1516	if (expect_false (!next_sv))
1358	{	1517	{
1359	dSP;	1518	dSP;
…		…
1363	SAVETMPS;	1522	SAVETMPS;
1364		1523
1365	PUSHMARK (SP);	1524	PUSHMARK (SP);
1366	PUTBACK;	1525	PUTBACK;
1367	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1526	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1527	SPAGAIN;
1368		1528
1369	FREETMPS;	1529	FREETMPS;
1370	LEAVE;	1530	LEAVE;
1371	continue;	1531	continue;
1372	}	1532	}
…		…
1427	{	1587	{
1428	dTHX;	1588	dTHX;
1429	struct transfer_args ta;	1589	struct transfer_args ta;
1430		1590
1431	prepare_schedule (aTHX_ &ta);	1591	prepare_schedule (aTHX_ &ta);
1432	TRANSFER (ta);	1592	TRANSFER (ta, 1);
1433	}	1593	}
1434		1594
1435	static int	1595	static int
1436	api_cede (void)	1596	api_cede (void)
1437	{	1597	{
…		…
1440		1600
1441	prepare_cede (aTHX_ &ta);	1601	prepare_cede (aTHX_ &ta);
1442		1602
1443	if (expect_true (ta.prev != ta.next))	1603	if (expect_true (ta.prev != ta.next))
1444	{	1604	{
1445	TRANSFER (ta);	1605	TRANSFER (ta, 1);
1446	return 1;	1606	return 1;
1447	}	1607	}
1448	else	1608	else
1449	return 0;	1609	return 0;
1450	}	1610	}
…		…
1455	dTHX;	1615	dTHX;
1456	struct transfer_args ta;	1616	struct transfer_args ta;
1457		1617
1458	if (prepare_cede_notself (aTHX_ &ta))	1618	if (prepare_cede_notself (aTHX_ &ta))
1459	{	1619	{
1460	TRANSFER (ta);	1620	TRANSFER (ta, 1);
1461	return 1;	1621	return 1;
1462	}	1622	}
1463	else	1623	else
1464	return 0;	1624	return 0;
1465	}	1625	}
…		…
1488	else	1648	else
1489	coro->slot->runops = RUNOPS_DEFAULT;	1649	coro->slot->runops = RUNOPS_DEFAULT;
1490	}	1650	}
1491	}	1651	}
1492		1652
		1653	static int
		1654	coro_gensub_free (pTHX_ SV *sv, MAGIC *mg)
		1655	{
		1656	AV *padlist;
		1657	AV *av = (AV *)mg->mg_obj;
		1658
		1659	abort ();
		1660
		1661	return 0;
		1662	}
		1663
		1664	static MGVTBL coro_gensub_vtbl = {
		1665	0, 0, 0, 0,
		1666	coro_gensub_free
		1667	};
		1668
		1669	/*****************************************************************************/
		1670	/* PerlIO::cede */
		1671
		1672	typedef struct
		1673	{
		1674	PerlIOBuf base;
		1675	NV next, every;
		1676	} PerlIOCede;
		1677
		1678	static IV
		1679	PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
		1680	{
		1681	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1682
		1683	self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
		1684	self->next = nvtime () + self->every;
		1685
		1686	return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
		1687	}
		1688
		1689	static SV *
		1690	PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
		1691	{
		1692	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1693
		1694	return newSVnv (self->every);
		1695	}
		1696
		1697	static IV
		1698	PerlIOCede_flush (pTHX_ PerlIO *f)
		1699	{
		1700	PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
		1701	double now = nvtime ();
		1702
		1703	if (now >= self->next)
		1704	{
		1705	api_cede ();
		1706	self->next = now + self->every;
		1707	}
		1708
		1709	return PerlIOBuf_flush (aTHX_ f);
		1710	}
		1711
		1712	static PerlIO_funcs PerlIO_cede =
		1713	{
		1714	sizeof(PerlIO_funcs),
		1715	"cede",
		1716	sizeof(PerlIOCede),
		1717	PERLIO_K_DESTRUCT | PERLIO_K_RAW,
		1718	PerlIOCede_pushed,
		1719	PerlIOBuf_popped,
		1720	PerlIOBuf_open,
		1721	PerlIOBase_binmode,
		1722	PerlIOCede_getarg,
		1723	PerlIOBase_fileno,
		1724	PerlIOBuf_dup,
		1725	PerlIOBuf_read,
		1726	PerlIOBuf_unread,
		1727	PerlIOBuf_write,
		1728	PerlIOBuf_seek,
		1729	PerlIOBuf_tell,
		1730	PerlIOBuf_close,
		1731	PerlIOCede_flush,
		1732	PerlIOBuf_fill,
		1733	PerlIOBase_eof,
		1734	PerlIOBase_error,
		1735	PerlIOBase_clearerr,
		1736	PerlIOBase_setlinebuf,
		1737	PerlIOBuf_get_base,
		1738	PerlIOBuf_bufsiz,
		1739	PerlIOBuf_get_ptr,
		1740	PerlIOBuf_get_cnt,
		1741	PerlIOBuf_set_ptrcnt,
		1742	};
		1743
		1744
1493	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1745	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1494		1746
1495	PROTOTYPES: DISABLE	1747	PROTOTYPES: DISABLE
1496		1748
1497	BOOT:	1749	BOOT:
1498	{	1750	{
1499	#ifdef USE_ITHREADS	1751	#ifdef USE_ITHREADS
1500	MUTEX_INIT (&coro_mutex);	1752	MUTEX_INIT (&coro_lock);
1501	#endif	1753	#endif
1502	BOOT_PAGESIZE;	1754	BOOT_PAGESIZE;
1503		1755
1504	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);	1756	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1505	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);	1757	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
1506		1758
		1759	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1760	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1761	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
		1762
1507	hv_sig = coro_get_hv ("SIG", TRUE);	1763	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1508	sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE);	1764	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
1509	sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE);	1765	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1510
1511	if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
1512	if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
1513		1766
1514	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1767	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1515		1768
1516	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1769	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1517	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1770	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1522	main_top_env = PL_top_env;	1775	main_top_env = PL_top_env;
1523		1776
1524	while (main_top_env->je_prev)	1777	while (main_top_env->je_prev)
1525	main_top_env = main_top_env->je_prev;	1778	main_top_env = main_top_env->je_prev;
1526		1779
1527	coroapi.ver = CORO_API_VERSION;	1780	coroapi.ver = CORO_API_VERSION;
		1781	coroapi.rev = CORO_API_REVISION;
1528	coroapi.transfer = api_transfer;	1782	coroapi.transfer = api_transfer;
		1783
		1784	{
		1785	SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
		1786
		1787	if (!svp) croak ("Time::HiRes is required");
		1788	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
		1789
		1790	nvtime = INT2PTR (double (*)(), SvIV (*svp));
		1791	}
1529		1792
1530	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1793	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1531	}	1794	}
1532		1795
1533	SV *	1796	SV *
1534	new (char *klass, ...)	1797	new (char *klass, ...)
1535	CODE:	1798	CODE:
1536	{	1799	{
1537	struct coro *coro;	1800	struct coro *coro;
		1801	MAGIC *mg;
1538	HV *hv;	1802	HV *hv;
1539	int i;	1803	int i;
1540		1804
1541	Newz (0, coro, 1, struct coro);	1805	Newz (0, coro, 1, struct coro);
1542	coro->args = newAV ();	1806	coro->args = newAV ();
…		…
1545	if (coro_first) coro_first->prev = coro;	1809	if (coro_first) coro_first->prev = coro;
1546	coro->next = coro_first;	1810	coro->next = coro_first;
1547	coro_first = coro;	1811	coro_first = coro;
1548		1812
1549	coro->hv = hv = newHV ();	1813	coro->hv = hv = newHV ();
1550	sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;	1814	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
		1815	mg->mg_flags |= MGf_DUP;
1551	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1816	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1552		1817
1553	av_extend (coro->args, items - 1);	1818	av_extend (coro->args, items - 1);
1554	for (i = 1; i < items; i++)	1819	for (i = 1; i < items; i++)
1555	av_push (coro->args, newSVsv (ST (i)));	1820	av_push (coro->args, newSVsv (ST (i)));
…		…
1569	Coro::cede_notself = 4	1834	Coro::cede_notself = 4
1570	CODE:	1835	CODE:
1571	{	1836	{
1572	struct transfer_args ta;	1837	struct transfer_args ta;
1573		1838
		1839	PUTBACK;
1574	switch (ix)	1840	switch (ix)
1575	{	1841	{
1576	case 0:	1842	case 0:
1577	ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0)));	1843	ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0)));
1578	ta.next = 0;	1844	ta.next = 0;
1579	break;	1845	break;
1580		1846
1581	case 1:	1847	case 1:
1582	if (items != 2)	1848	if (items != 2)
1583	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1849	croak ("Coro::State::transfer (prev, next) expects two arguments, not %d", items);
1584		1850
1585	prepare_transfer (aTHX_ &ta, ST (0), ST (1));	1851	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1586	break;	1852	break;
1587		1853
1588	case 2:	1854	case 2:
…		…
1597	if (!prepare_cede_notself (aTHX_ &ta))	1863	if (!prepare_cede_notself (aTHX_ &ta))
1598	XSRETURN_EMPTY;	1864	XSRETURN_EMPTY;
1599		1865
1600	break;	1866	break;
1601	}	1867	}
		1868	SPAGAIN;
1602		1869
1603	BARRIER;	1870	BARRIER;
		1871	PUTBACK;
1604	TRANSFER (ta);	1872	TRANSFER (ta, 0);
1605		1873	SPAGAIN; /* might be the sp of a different coroutine now */
1606	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))	1874	/* be extra careful not to ever do anything after TRANSFER */
1607	XSRETURN_YES;
1608	}	1875	}
1609		1876
1610	bool	1877	bool
1611	_destroy (SV *coro_sv)	1878	_destroy (SV *coro_sv)
1612	CODE:	1879	CODE:
1613	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	1880	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1614	OUTPUT:	1881	OUTPUT:
1615	RETVAL	1882	RETVAL
1616		1883
1617	void	1884	void
1618	_exit (code)	1885	_exit (int code)
1619	int code
1620	PROTOTYPE: $	1886	PROTOTYPE: $
1621	CODE:	1887	CODE:
1622	_exit (code);	1888	_exit (code);
1623		1889
1624	int	1890	int
…		…
1658	call (Coro::State coro, SV *coderef)	1924	call (Coro::State coro, SV *coderef)
1659	ALIAS:	1925	ALIAS:
1660	eval = 1	1926	eval = 1
1661	CODE:	1927	CODE:
1662	{	1928	{
1663	if (coro->mainstack)	1929	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
1664	{	1930	{
1665	struct coro temp;	1931	struct coro temp;
1666		1932
1667	if (!(coro->flags & CF_RUNNING))	1933	if (!(coro->flags & CF_RUNNING))
1668	{	1934	{
		1935	PUTBACK;
1669	save_perl (aTHX_ &temp);	1936	save_perl (aTHX_ &temp);
1670	load_perl (aTHX_ coro);	1937	load_perl (aTHX_ coro);
1671	}	1938	}
1672		1939
1673	{	1940	{
1674	dSP;	1941	dSP;
1675	ENTER;	1942	ENTER;
1676	SAVETMPS;	1943	SAVETMPS;
		1944	PUTBACK;
		1945	PUSHSTACK;
1677	PUSHMARK (SP);	1946	PUSHMARK (SP);
1678	PUTBACK;
1679		1947
1680	if (ix)	1948	if (ix)
1681	eval_sv (coderef, 0);	1949	eval_sv (coderef, 0);
1682	else	1950	else
1683	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	1951	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1684		1952
		1953	POPSTACK;
1685	SPAGAIN;	1954	SPAGAIN;
1686	FREETMPS;	1955	FREETMPS;
1687	LEAVE;	1956	LEAVE;
1688	PUTBACK;	1957	PUTBACK;
1689	}	1958	}
1690		1959
1691	if (!(coro->flags & CF_RUNNING))	1960	if (!(coro->flags & CF_RUNNING))
1692	{	1961	{
1693	save_perl (aTHX_ coro);	1962	save_perl (aTHX_ coro);
1694	load_perl (aTHX_ &temp);	1963	load_perl (aTHX_ &temp);
		1964	SPAGAIN;
1695	}	1965	}
1696	}	1966	}
1697	}	1967	}
1698		1968
1699	SV *	1969	SV *
…		…
1711		1981
1712	void	1982	void
1713	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	1983	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1714		1984
1715	SV *	1985	SV *
1716	has_stack (Coro::State coro)	1986	has_cctx (Coro::State coro)
1717	PROTOTYPE: $	1987	PROTOTYPE: $
1718	CODE:	1988	CODE:
1719	RETVAL = boolSV (!!coro->cctx);	1989	RETVAL = boolSV (!!coro->cctx);
1720	OUTPUT:	1990	OUTPUT:
1721	RETVAL	1991	RETVAL
…		…
1740	case 1: RETVAL = coro->usecount; break;	2010	case 1: RETVAL = coro->usecount; break;
1741	}	2011	}
1742	OUTPUT:	2012	OUTPUT:
1743	RETVAL	2013	RETVAL
1744		2014
		2015	void
		2016	force_cctx ()
		2017	CODE:
		2018	struct coro *coro = SvSTATE (coro_current);
		2019	coro->cctx->idle_sp = 0;
		2020
		2021	void
		2022	swap_defsv (Coro::State self)
		2023	PROTOTYPE: $
		2024	ALIAS:
		2025	swap_defav = 1
		2026	CODE:
		2027	if (!self->slot)
		2028	croak ("cannot swap state with coroutine that has no saved state");
		2029	else
		2030	{
		2031	SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv);
		2032	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
		2033
		2034	SV *tmp = *src; *src = *dst; *dst = tmp;
		2035	}
1745		2036
1746	MODULE = Coro::State PACKAGE = Coro	2037	MODULE = Coro::State PACKAGE = Coro
1747		2038
1748	BOOT:	2039	BOOT:
1749	{	2040	{
1750	int i;	2041	int i;
1751		2042
1752	sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE);
1753	sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE);
1754	av_async_pool = coro_get_av ("Coro::async_pool", TRUE);	2043	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		2044	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		2045	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1755		2046
1756	coro_current = coro_get_sv ("Coro::current", FALSE);	2047	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1757	SvREADONLY_on (coro_current);	2048	SvREADONLY_on (coro_current);
1758		2049
1759	coro_stash = gv_stashpv ("Coro", TRUE);	2050	coro_stash = gv_stashpv ("Coro", TRUE);
1760		2051
1761	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	2052	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
…		…
1789	void	2080	void
1790	_set_current (SV *current)	2081	_set_current (SV *current)
1791	PROTOTYPE: $	2082	PROTOTYPE: $
1792	CODE:	2083	CODE:
1793	SvREFCNT_dec (SvRV (coro_current));	2084	SvREFCNT_dec (SvRV (coro_current));
1794	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));	2085	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
		2086
		2087	void
		2088	_set_readyhook (SV *hook)
		2089	PROTOTYPE: $
		2090	CODE:
		2091	LOCK;
		2092	SvREFCNT_dec (coro_readyhook);
		2093	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		2094	UNLOCK;
1795		2095
1796	int	2096	int
1797	prio (Coro::State coro, int newprio = 0)	2097	prio (Coro::State coro, int newprio = 0)
1798	ALIAS:	2098	ALIAS:
1799	nice = 1	2099	nice = 1
…		…
1844	CODE:	2144	CODE:
1845	{	2145	{
1846	struct coro *coro = SvSTATE (coro_current);	2146	struct coro *coro = SvSTATE (coro_current);
1847	HV *hv = (HV *)SvRV (coro_current);	2147	HV *hv = (HV *)SvRV (coro_current);
1848	AV *defav = GvAV (PL_defgv);	2148	AV *defav = GvAV (PL_defgv);
1849	SV *invoke = hv_delete (hv, strpair ("_invoke"), 0);	2149	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1850	AV *invoke_av;	2150	AV *invoke_av;
1851	int i, len;	2151	int i, len;
1852		2152
1853	if (!invoke)	2153	if (!invoke)
		2154	{
		2155	SV *old = PL_diehook;
		2156	PL_diehook = 0;
		2157	SvREFCNT_dec (old);
1854	croak ("\3async_pool terminate\2\n");	2158	croak ("\3async_pool terminate\2\n");
		2159	}
1855		2160
1856	SvREFCNT_dec (coro->saved_deffh);	2161	SvREFCNT_dec (coro->saved_deffh);
1857	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	2162	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1858		2163
1859	hv_store (hv, "desc", sizeof ("desc") - 1,	2164	hv_store (hv, "desc", sizeof ("desc") - 1,
1860	newSVpvn (strpair ("[async_pool]")), 0);	2165	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1861		2166
1862	invoke_av = (AV *)SvRV (invoke);	2167	invoke_av = (AV *)SvRV (invoke);
1863	len = av_len (invoke_av);	2168	len = av_len (invoke_av);
1864		2169
1865	sv_setsv (cb, AvARRAY (invoke_av)[0]);	2170	sv_setsv (cb, AvARRAY (invoke_av)[0]);
1866		2171
1867	if (len > 0)	2172	if (len > 0)
1868	{	2173	{
1869	av_fill (defav, len - 1);	2174	av_fill (defav, len - 1);
1870	for (i = 0; i < len; ++i)	2175	for (i = 0; i < len; ++i)
1871	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));	2176	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));
1872	}	2177	}
1873		2178
1874	SvREFCNT_dec (invoke);	2179	SvREFCNT_dec (invoke);
1875	}	2180	}
1876		2181
…		…
1885	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;	2190	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1886	coro->saved_deffh = 0;	2191	coro->saved_deffh = 0;
1887		2192
1888	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2193	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1889	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2194	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		2195	{
		2196	SV *old = PL_diehook;
		2197	PL_diehook = 0;
		2198	SvREFCNT_dec (old);
1890	croak ("\3async_pool terminate\2\n");	2199	croak ("\3async_pool terminate\2\n");
		2200	}
1891		2201
1892	av_clear (GvAV (PL_defgv));	2202	av_clear (GvAV (PL_defgv));
1893	hv_store ((HV *)SvRV (coro_current), strpair ("desc"),	2203	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1894	newSVpvn (strpair ("[async_pool idle]")), 0);	2204	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1895		2205
1896	coro->prio = 0;	2206	coro->prio = 0;
1897		2207
1898	if (coro->cctx && (coro->cctx->flags & CC_TRACE))	2208	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1899	api_trace (coro_current, 0);	2209	api_trace (coro_current, 0);
1900		2210
1901	av_push (av_async_pool, newSVsv (coro_current));	2211	av_push (av_async_pool, newSVsv (coro_current));
1902	}	2212	}
1903		2213
		2214	#if 0
		2215
		2216	void
		2217	_generator_call (...)
		2218	PROTOTYPE: @
		2219	PPCODE:
		2220	fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
		2221	xxxx
		2222	abort ();
		2223
		2224	SV *
		2225	gensub (SV *sub, ...)
		2226	PROTOTYPE: &;@
		2227	CODE:
		2228	{
		2229	struct coro *coro;
		2230	MAGIC *mg;
		2231	CV *xcv;
		2232	CV *ncv = (CV *)newSV_type (SVt_PVCV);
		2233	int i;
		2234
		2235	CvGV (ncv) = CvGV (cv);
		2236	CvFILE (ncv) = CvFILE (cv);
		2237
		2238	Newz (0, coro, 1, struct coro);
		2239	coro->args = newAV ();
		2240	coro->flags = CF_NEW;
		2241
		2242	av_extend (coro->args, items - 1);
		2243	for (i = 1; i < items; i++)
		2244	av_push (coro->args, newSVsv (ST (i)));
		2245
		2246	CvISXSUB_on (ncv);
		2247	CvXSUBANY (ncv).any_ptr = (void *)coro;
		2248
		2249	xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV));
		2250
		2251	CvXSUB (ncv) = CvXSUB (xcv);
		2252	CvANON_on (ncv);
		2253
		2254	mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0);
		2255	RETVAL = newRV_noinc ((SV *)ncv);
		2256	}
		2257	OUTPUT:
		2258	RETVAL
		2259
		2260	#endif
		2261
1904		2262
1905	MODULE = Coro::State PACKAGE = Coro::AIO	2263	MODULE = Coro::State PACKAGE = Coro::AIO
1906		2264
1907	SV *	2265	void
1908	_get_state ()	2266	_get_state (SV *self)
1909	CODE:	2267	PPCODE:
1910	{	2268	{
1911	struct io_state *data;	2269	AV *defav = GvAV (PL_defgv);
1912		2270	AV *av = newAV ();
		2271	int i;
1913	RETVAL = newSV (sizeof (struct io_state));	2272	SV *data_sv = newSV (sizeof (struct io_state));
1914	data = (struct io_state *)SvPVX (RETVAL);	2273	struct io_state *data = (struct io_state *)SvPVX (data_sv);
1915	SvCUR_set (RETVAL, sizeof (struct io_state));	2274	SvCUR_set (data_sv, sizeof (struct io_state));
1916	SvPOK_only (RETVAL);	2275	SvPOK_only (data_sv);
1917		2276
1918	data->errorno = errno;	2277	data->errorno = errno;
1919	data->laststype = PL_laststype;	2278	data->laststype = PL_laststype;
1920	data->laststatval = PL_laststatval;	2279	data->laststatval = PL_laststatval;
1921	data->statcache = PL_statcache;	2280	data->statcache = PL_statcache;
		2281
		2282	av_extend (av, AvFILLp (defav) + 1 + 1);
		2283
		2284	for (i = 0; i <= AvFILLp (defav); ++i)
		2285	av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i]));
		2286
		2287	av_push (av, data_sv);
		2288
		2289	XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		2290
		2291	api_ready (self);
1922	}	2292	}
1923	OUTPUT:
1924	RETVAL
1925		2293
1926	void	2294	void
1927	_set_state (char *data_)	2295	_set_state (SV *state)
1928	PROTOTYPE: $	2296	PROTOTYPE: $
1929	CODE:	2297	PPCODE:
1930	{	2298	{
1931	struct io_state *data = (void *)data_;	2299	AV *av = (AV *)SvRV (state);
		2300	struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]);
		2301	int i;
1932		2302
1933	errno = data->errorno;	2303	errno = data->errorno;
1934	PL_laststype = data->laststype;	2304	PL_laststype = data->laststype;
1935	PL_laststatval = data->laststatval;	2305	PL_laststatval = data->laststatval;
1936	PL_statcache = data->statcache;	2306	PL_statcache = data->statcache;
1937	}
1938		2307
		2308	EXTEND (SP, AvFILLp (av));
		2309	for (i = 0; i < AvFILLp (av); ++i)
		2310	PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i])));
		2311	}
		2312
		2313
		2314	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2315
		2316	BOOT:
		2317	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2318
		2319	SV *
		2320	_schedule (...)
		2321	PROTOTYPE: @
		2322	CODE:
		2323	{
		2324	static int incede;
		2325
		2326	api_cede_notself ();
		2327
		2328	++incede;
		2329	while (coro_nready >= incede && api_cede ())
		2330	;
		2331
		2332	sv_setsv (sv_activity, &PL_sv_undef);
		2333	if (coro_nready >= incede)
		2334	{
		2335	PUSHMARK (SP);
		2336	PUTBACK;
		2337	call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL);
		2338	SPAGAIN;
		2339	}
		2340
		2341	--incede;
		2342	}
		2343
		2344
		2345	MODULE = Coro::State PACKAGE = PerlIO::cede
		2346
		2347	BOOT:
		2348	PerlIO_define_layer (aTHX_ &PerlIO_cede);

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines