[ViewVC] Diff of: cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.120 by root, Sat Dec 2 18:01:30 2006 UTC vs.
Revision 1.140 by root, Sat Jan 20 19:52:15 2007 UTC

…		…
4	#include "perl.h"	4	#include "perl.h"
5	#include "XSUB.h"	5	#include "XSUB.h"
6		6
7	#include "patchlevel.h"	7	#include "patchlevel.h"
8		8
9	#if USE_VALGRIND
10	# include <valgrind/valgrind.h>
11	#endif
12
13	/* the maximum number of idle cctx that will be pooled */
14	#define MAX_IDLE_CCTX 8
15
16	#define PERL_VERSION_ATLEAST(a,b,c) \
17	(PERL_REVISION > (a) \
18	\|\| (PERL_REVISION == (a) \
19	&& (PERL_VERSION > (b) \
20	\|\| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))
21
22	#if !PERL_VERSION_ATLEAST (5,6,0)
23	# ifndef PL_ppaddr
24	# define PL_ppaddr ppaddr
25	# endif
26	# ifndef call_sv
27	# define call_sv perl_call_sv
28	# endif
29	# ifndef get_sv
30	# define get_sv perl_get_sv
31	# endif
32	# ifndef get_cv
33	# define get_cv perl_get_cv
34	# endif
35	# ifndef IS_PADGV
36	# define IS_PADGV(v) 0
37	# endif
38	# ifndef IS_PADCONST
39	# define IS_PADCONST(v) 0
40	# endif
41	#endif
42
43	#include <stdio.h>	9	#include <stdio.h>
44	#include <errno.h>	10	#include <errno.h>
45		11	#include <assert.h>
46	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
47	# undef STACKGUARD
48	#endif
49
50	#ifndef STACKGUARD
51	# define STACKGUARD 0
52	#endif
53		12
54	#ifdef HAVE_MMAP	13	#ifdef HAVE_MMAP
55	# include <unistd.h>	14	# include <unistd.h>
56	# include <sys/mman.h>	15	# include <sys/mman.h>
57	# ifndef MAP_ANONYMOUS	16	# ifndef MAP_ANONYMOUS
…		…
72	#else	31	#else
73	# define PAGESIZE 0	32	# define PAGESIZE 0
74	# define BOOT_PAGESIZE (void)0	33	# define BOOT_PAGESIZE (void)0
75	#endif	34	#endif
76		35
		36	#if USE_VALGRIND
		37	# include <valgrind/valgrind.h>
		38	#endif
		39
		40	/* the maximum number of idle cctx that will be pooled */
		41	#define MAX_IDLE_CCTX 8
		42
		43	#define PERL_VERSION_ATLEAST(a,b,c) \
		44	(PERL_REVISION > (a) \
		45	\|\| (PERL_REVISION == (a) \
		46	&& (PERL_VERSION > (b) \
		47	\|\| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))
		48
		49	#if !PERL_VERSION_ATLEAST (5,6,0)
		50	# ifndef PL_ppaddr
		51	# define PL_ppaddr ppaddr
		52	# endif
		53	# ifndef call_sv
		54	# define call_sv perl_call_sv
		55	# endif
		56	# ifndef get_sv
		57	# define get_sv perl_get_sv
		58	# endif
		59	# ifndef get_cv
		60	# define get_cv perl_get_cv
		61	# endif
		62	# ifndef IS_PADGV
		63	# define IS_PADGV(v) 0
		64	# endif
		65	# ifndef IS_PADCONST
		66	# define IS_PADCONST(v) 0
		67	# endif
		68	#endif
		69
		70	/* 5.8.7 */
		71	#ifndef SvRV_set
		72	# define SvRV_set(s,v) SvRV(s) = (v)
		73	#endif
		74
		75	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
		76	# undef STACKGUARD
		77	#endif
		78
		79	#ifndef STACKGUARD
		80	# define STACKGUARD 0
		81	#endif
		82
		83	/* prefer perl internal functions over our own? */
		84	#ifndef PREFER_PERL_FUNCTIONS
		85	# define PREFER_PERL_FUNCTIONS 0
		86	#endif
		87
77	/* The next macro should declare a variable stacklevel that contains and approximation	88	/* The next macro should declare a variable stacklevel that contains and approximation
78	* to the current C stack pointer. Its property is that it changes with each call	89	* to the current C stack pointer. Its property is that it changes with each call
79	* and should be unique. */	90	* and should be unique. */
80	#define dSTACKLEVEL int stacklevel	91	#define dSTACKLEVEL int stacklevel
81	#define STACKLEVEL ((void *)&stacklevel)	92	#define STACKLEVEL ((void *)&stacklevel)
82		93
83	#define IN_DESTRUCT (PL_main_cv == Nullcv)	94	#define IN_DESTRUCT (PL_main_cv == Nullcv)
84		95
85	#if __GNUC__ >= 3	96	#if __GNUC__ >= 3
86	# define attribute(x) __attribute__(x)	97	# define attribute(x) __attribute__(x)
		98	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
87	#else	99	#else
88	# define attribute(x)	100	# define attribute(x)
		101	# define BARRIER
89	#endif	102	#endif
90		103
91	#define NOINLINE attribute ((noinline))	104	#define NOINLINE attribute ((noinline))
92		105
93	#include "CoroAPI.h"	106	#include "CoroAPI.h"
94
95	#define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */
96		107
97	#ifdef USE_ITHREADS	108	#ifdef USE_ITHREADS
98	static perl_mutex coro_mutex;	109	static perl_mutex coro_mutex;
99	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	110	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
100	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	111	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
101	#else	112	#else
102	# define LOCK (void)0	113	# define LOCK (void)0
103	# define UNLOCK (void)0	114	# define UNLOCK (void)0
104	#endif	115	#endif
105		116
		117	/* helper storage struct for Coro::AIO */
106	struct io_state	118	struct io_state
107	{	119	{
108	int errorno;	120	int errorno;
109	I32 laststype;	121	I32 laststype;
110	int laststatval;	122	int laststatval;
…		…
126	/* the stack */	138	/* the stack */
127	void *sptr;	139	void *sptr;
128	long ssize; /* positive == mmap, otherwise malloc */	140	long ssize; /* positive == mmap, otherwise malloc */
129		141
130	/* cpu state */	142	/* cpu state */
131	void idle_sp; / sp of top-level transfer/schedule/cede call */	143	void idle_sp; / sp of top-level transfer/schedule/cede call */
		144	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
132	JMPENV *top_env;	145	JMPENV *top_env;
133	coro_context cctx;	146	coro_context cctx;
134		147
135	int inuse;	148	int inuse;
136		149
…		…
138	int valgrind_id;	151	int valgrind_id;
139	#endif	152	#endif
140	} coro_cctx;	153	} coro_cctx;
141		154
142	enum {	155	enum {
143	CF_RUNNING = 0x0001, /* coroutine is running */	156	CF_RUNNING = 0x0001, /* coroutine is running */
144	CF_READY = 0x0002, /* coroutine is ready */	157	CF_READY = 0x0002, /* coroutine is ready */
145	CF_NEW = 0x0004, /* ahs never been switched to */	158	CF_NEW = 0x0004, /* has never been switched to */
		159	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
146	};	160	};
147		161
148	/* this is a structure representing a perl-level coroutine */	162	/* this is a structure representing a perl-level coroutine */
149	struct coro {	163	struct coro {
150	/* the c coroutine allocated to this perl coroutine, if any */	164	/* the c coroutine allocated to this perl coroutine, if any */
151	coro_cctx *cctx;	165	coro_cctx *cctx;
152		166
153	/* data associated with this coroutine (initial args) */	167	/* data associated with this coroutine (initial args) */
154	AV *args;	168	AV *args;
155	int refcnt;	169	int refcnt;
156	int flags;	170	int save; /* CORO_SAVE flags */
		171	int flags; /* CF_ flags */
157		172
158	/* optionally saved, might be zero */	173	/* optionally saved, might be zero */
159	AV *defav;	174	AV defav; / @_ */
160	SV *defsv;	175	SV defsv; / $_ */
161	SV *errsv;	176	SV errsv; / $@ */
		177	SV irssv; / $/ */
		178	SV irssv_sv; / real $/ cache */
162		179
163	#define VAR(name,type) type name;	180	#define VAR(name,type) type name;
164	# include "state.h"	181	# include "state.h"
165	#undef VAR	182	#undef VAR
166		183
…		…
168	int prio;	185	int prio;
169	};	186	};
170		187
171	typedef struct coro *Coro__State;	188	typedef struct coro *Coro__State;
172	typedef struct coro *Coro__State_or_hashref;	189	typedef struct coro *Coro__State_or_hashref;
		190
		191	/ Coro ******************************************************************/
		192
		193	#define PRIO_MAX 3
		194	#define PRIO_HIGH 1
		195	#define PRIO_NORMAL 0
		196	#define PRIO_LOW -1
		197	#define PRIO_IDLE -3
		198	#define PRIO_MIN -4
		199
		200	/* for Coro.pm */
		201	static SV *coro_current;
		202	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
		203	static int coro_nready;
		204
		205	/ lowlevel stuff ********************************************************/
173		206
174	static AV *	207	static AV *
175	coro_clone_padlist (CV *cv)	208	coro_clone_padlist (CV *cv)
176	{	209	{
177	AV *padlist = CvPADLIST (cv);	210	AV *padlist = CvPADLIST (cv);
…		…
252		285
253	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	286	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
254	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	287	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
255	else	288	else
256	{	289	{
257	#if 0	290	#if PREFER_PERL_FUNCTIONS
258	/* this is probably cleaner, but also slower? */	291	/* this is probably cleaner, but also slower? */
259	CV *cp = Perl_cv_clone (cv);	292	CV *cp = Perl_cv_clone (cv);
260	CvPADLIST (cv) = CvPADLIST (cp);	293	CvPADLIST (cv) = CvPADLIST (cp);
261	CvPADLIST (cp) = 0;	294	CvPADLIST (cp) = 0;
262	SvREFCNT_dec (cp);	295	SvREFCNT_dec (cp);
…		…
286	av_extend (av, AvMAX (av) + 1);	319	av_extend (av, AvMAX (av) + 1);
287		320
288	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	321	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
289	}	322	}
290		323
		324	/ load & save, init *****************************************************/
		325
291	#define SB do {	326	#define SB do {
292	#define SE } while (0)	327	#define SE } while (0)
293		328
294	#define LOAD(state) load_state ((state))
295	#define SAVE(state,flags) save_state ((state),(flags))
296
297	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE	329	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
298		330
299	static void	331	static void
300	load_state (Coro__State c)	332	load_perl (Coro__State c)
301	{	333	{
302	#define VAR(name,type) PL_ ## name = c->name;	334	#define VAR(name,type) PL_ ## name = c->name;
303	# include "state.h"	335	# include "state.h"
304	#undef VAR	336	#undef VAR
305		337
306	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	338	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
307	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	339	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
308	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	340	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
		341	if (c->irssv)
		342	{
		343	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
		344	SvREFCNT_dec (c->irssv);
		345	else
		346	{
		347	REPLACE_SV (PL_rs, c->irssv);
		348	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
		349	sv_setsv (c->irssv_sv, PL_rs);
		350	}
		351	}
309		352
310	{	353	{
311	dSP;	354	dSP;
312	CV *cv;	355	CV *cv;
313		356
…		…
322	PUTBACK;	365	PUTBACK;
323	}	366	}
324	}	367	}
325		368
326	static void	369	static void
327	save_state (Coro__State c, int flags)	370	save_perl (Coro__State c)
328	{	371	{
329	{	372	{
330	dSP;	373	dSP;
331	I32 cxix = cxstack_ix;	374	I32 cxix = cxstack_ix;
332	PERL_CONTEXT *ccstk = cxstack;	375	PERL_CONTEXT *ccstk = cxstack;
…		…
335	/*	378	/*
336	* the worst thing you can imagine happens first - we have to save	379	* the worst thing you can imagine happens first - we have to save
337	* (and reinitialize) all cv's in the whole callchain :(	380	* (and reinitialize) all cv's in the whole callchain :(
338	*/	381	*/
339		382
		383	EXTEND (SP, 3 + 1);
340	PUSHs (Nullsv);	384	PUSHs (Nullsv);
341	/* this loop was inspired by pp_caller */	385	/* this loop was inspired by pp_caller */
342	for (;;)	386	for (;;)
343	{	387	{
344	while (cxix >= 0)	388	while (cxix >= 0)
…		…
350	CV *cv = cx->blk_sub.cv;	394	CV *cv = cx->blk_sub.cv;
351		395
352	if (CvDEPTH (cv))	396	if (CvDEPTH (cv))
353	{	397	{
354	EXTEND (SP, 3);	398	EXTEND (SP, 3);
355
356	PUSHs ((SV *)CvPADLIST (cv));	399	PUSHs ((SV *)CvPADLIST (cv));
357	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	400	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
358	PUSHs ((SV *)cv);	401	PUSHs ((SV *)cv);
359		402
360	CvDEPTH (cv) = 0;	403	CvDEPTH (cv) = 0;
361	get_padlist (cv);	404	get_padlist (cv);
362	}	405	}
363	}	406	}
364	#ifdef CXt_FORMAT
365	else if (CxTYPE (cx) == CXt_FORMAT)
366	{
367	/* I never used formats, so how should I know how these are implemented? */
368	/* my bold guess is as a simple, plain sub... */
369	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
370	}
371	#endif
372	}	407	}
373		408
374	if (top_si->si_type == PERLSI_MAIN)	409	if (top_si->si_type == PERLSI_MAIN)
375	break;	410	break;
376		411
…		…
380	}	415	}
381		416
382	PUTBACK;	417	PUTBACK;
383	}	418	}
384		419
385	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	420	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
386	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	421	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
387	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	422	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
		423	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
388		424
389	#define VAR(name,type)c->name = PL_ ## name;	425	#define VAR(name,type)c->name = PL_ ## name;
390	# include "state.h"	426	# include "state.h"
391	#undef VAR	427	#undef VAR
392	}	428	}
…		…
395	* allocate various perl stacks. This is an exact copy	431	* allocate various perl stacks. This is an exact copy
396	* of perl.c:init_stacks, except that it uses less memory	432	* of perl.c:init_stacks, except that it uses less memory
397	* on the (sometimes correct) assumption that coroutines do	433	* on the (sometimes correct) assumption that coroutines do
398	* not usually need a lot of stackspace.	434	* not usually need a lot of stackspace.
399	*/	435	*/
		436	#if PREFER_PERL_FUNCTIONS
		437	# define coro_init_stacks init_stacks
		438	#else
400	static void	439	static void
401	coro_init_stacks ()	440	coro_init_stacks ()
402	{	441	{
403	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	442	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));
404	PL_curstackinfo->si_type = PERLSI_MAIN;	443	PL_curstackinfo->si_type = PERLSI_MAIN;
…		…
434	New(54,PL_retstack,16,OP*);	473	New(54,PL_retstack,16,OP*);
435	PL_retstack_ix = 0;	474	PL_retstack_ix = 0;
436	PL_retstack_max = 16;	475	PL_retstack_max = 16;
437	#endif	476	#endif
438	}	477	}
		478	#endif
439		479
440	/*	480	/*
441	* destroy the stacks, the callchain etc...	481	* destroy the stacks, the callchain etc...
442	*/	482	*/
443	static void	483	static void
444	coro_destroy_stacks ()	484	coro_destroy_stacks ()
445	{	485	{
446	if (!IN_DESTRUCT)	486	if (!IN_DESTRUCT)
447	{	487	{
448	/* is this ugly, I ask? */	488	/* restore all saved variables and stuff */
449	LEAVE_SCOPE (0);	489	LEAVE_SCOPE (0);
		490	assert (PL_tmps_floor == -1);
450		491
451	/* sure it is, but more important: is it correct?? :/ */	492	/* free all temporaries */
452	FREETMPS;	493	FREETMPS;
		494	assert (PL_tmps_ix == -1);
453		495
		496	/* unwind all extra stacks */
454	/POPSTACK_TO (PL_mainstack);//D//use/	497	POPSTACK_TO (PL_mainstack);
		498
		499	/* unwind main stack */
		500	dounwind (-1);
455	}	501	}
456		502
457	while (PL_curstackinfo->si_next)	503	while (PL_curstackinfo->si_next)
458	PL_curstackinfo = PL_curstackinfo->si_next;	504	PL_curstackinfo = PL_curstackinfo->si_next;
459		505
460	while (PL_curstackinfo)	506	while (PL_curstackinfo)
461	{	507	{
462	PERL_SI *p = PL_curstackinfo->si_prev;	508	PERL_SI *p = PL_curstackinfo->si_prev;
463		509
464	{ /D//remove/
465	dSP;
466	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
467	PUTBACK; /* possibly superfluous */
468	}
469
470	if (!IN_DESTRUCT)	510	if (!IN_DESTRUCT)
471	{
472	dounwind (-1);/D//remove/
473	SvREFCNT_dec (PL_curstackinfo->si_stack);	511	SvREFCNT_dec (PL_curstackinfo->si_stack);
474	}
475		512
476	Safefree (PL_curstackinfo->si_cxstack);	513	Safefree (PL_curstackinfo->si_cxstack);
477	Safefree (PL_curstackinfo);	514	Safefree (PL_curstackinfo);
478	PL_curstackinfo = p;	515	PL_curstackinfo = p;
479	}	516	}
…		…
484	Safefree (PL_savestack);	521	Safefree (PL_savestack);
485	#if !PERL_VERSION_ATLEAST (5,9,0)	522	#if !PERL_VERSION_ATLEAST (5,9,0)
486	Safefree (PL_retstack);	523	Safefree (PL_retstack);
487	#endif	524	#endif
488	}	525	}
		526
		527	/ coroutine stack handling **********************************************/
489		528
490	static void	529	static void
491	setup_coro (struct coro *coro)	530	setup_coro (struct coro *coro)
492	{	531	{
493	/*	532	/*
…		…
583	{	622	{
584	coro_cctx *cctx;	623	coro_cctx *cctx;
585		624
586	++cctx_count;	625	++cctx_count;
587		626
588	New (0, cctx, 1, coro_cctx);	627	Newz (0, cctx, 1, coro_cctx);
589		628
590	#if HAVE_MMAP	629	#if HAVE_MMAP
591		630
592	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	631	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
593	/* mmap supposedly does allocate-on-write for us */	632	/* mmap supposedly does allocate-on-write for us */
…		…
686	++cctx_idle;	725	++cctx_idle;
687	cctx->next = cctx_first;	726	cctx->next = cctx_first;
688	cctx_first = cctx;	727	cctx_first = cctx;
689	}	728	}
690		729
		730	/ coroutine switching ***************************************************/
		731
691	/* never call directly, always through the coro_state_transfer global variable */	732	/* never call directly, always through the coro_state_transfer global variable */
692	static void NOINLINE	733	static void NOINLINE
693	transfer (struct coro prev, struct coro next, int flags)	734	transfer (struct coro prev, struct coro next)
694	{	735	{
695	dSTACKLEVEL;	736	dSTACKLEVEL;
696		737
697	/* sometimes transfer is only called to set idle_sp */	738	/* sometimes transfer is only called to set idle_sp */
698	if (flags == TRANSFER_SET_STACKLEVEL)	739	if (!next)
		740	{
699	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	741	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
		742	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
		743	}
700	else if (prev != next)	744	else if (prev != next)
701	{	745	{
702	coro_cctx *prev__cctx;	746	coro_cctx *prev__cctx;
703		747
704	if (prev->flags & CF_NEW)	748	if (prev->flags & CF_NEW)
…		…
715	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");	759	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
716		760
717	if (next->flags & CF_RUNNING)	761	if (next->flags & CF_RUNNING)
718	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	762	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
719		763
		764	if (next->flags & CF_DESTROYED)
		765	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		766
720	prev->flags &= ~CF_RUNNING;	767	prev->flags &= ~CF_RUNNING;
721	next->flags \|= CF_RUNNING;	768	next->flags \|= CF_RUNNING;
722		769
723	LOCK;	770	LOCK;
724		771
725	if (next->flags & CF_NEW)	772	if (next->flags & CF_NEW)
726	{	773	{
727	/* need to start coroutine */	774	/* need to start coroutine */
728	next->flags &= ~CF_NEW;	775	next->flags &= ~CF_NEW;
729	/* first get rid of the old state */	776	/* first get rid of the old state */
730	SAVE (prev, -1);	777	save_perl (prev);
731	/* setup coroutine call */	778	/* setup coroutine call */
732	setup_coro (next);	779	setup_coro (next);
733	/* need a new stack */	780	/* need a new stack */
734	assert (!next->stack);	781	assert (!next->cctx);
735	}	782	}
736	else	783	else
737	{	784	{
738	/* coroutine already started */	785	/* coroutine already started */
739	SAVE (prev, flags);	786	save_perl (prev);
740	LOAD (next);	787	load_perl (next);
741	}	788	}
742		789
743	prev__cctx = prev->cctx;	790	prev__cctx = prev->cctx;
744		791
745	/* possibly "free" the cctx */	792	/* possibly "free" the cctx */
746	if (prev__cctx->idle_sp == STACKLEVEL)	793	if (prev__cctx->idle_sp == STACKLEVEL)
747	{	794	{
748	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	795	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
749	assert (PL_top_env == prev__cctx->top_env);	796	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
750		797
751	prev->cctx = 0;	798	prev->cctx = 0;
752		799
753	cctx_put (prev__cctx);	800	cctx_put (prev__cctx);
754	prev__cctx->inuse = 0;	801	prev__cctx->inuse = 0;
…		…
767	PL_top_env = next->cctx->top_env;	814	PL_top_env = next->cctx->top_env;
768	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	815	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
769	}	816	}
770		817
771	free_coro_mortal ();	818	free_coro_mortal ();
772
773	UNLOCK;	819	UNLOCK;
774	}	820	}
775	}	821	}
776		822
777	struct transfer_args	823	struct transfer_args
778	{	824	{
779	struct coro prev, next;	825	struct coro prev, next;
780	int flags;
781	};	826	};
782		827
783	#define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags)	828	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)
784		829
		830	/ high level stuff ******************************************************/
		831
785	static void	832	static int
786	coro_state_destroy (struct coro *coro)	833	coro_state_destroy (struct coro *coro)
787	{	834	{
788	if (coro->refcnt--)	835	if (coro->flags & CF_DESTROYED)
789	return;	836	return 0;
		837
		838	coro->flags \|= CF_DESTROYED;
		839
		840	if (coro->flags & CF_READY)
		841	{
		842	/* reduce nready, as destroying a ready coro effectively unreadies it */
		843	/* alternative: look through all ready queues and remove the coro */
		844	LOCK;
		845	--coro_nready;
		846	UNLOCK;
		847	}
		848	else
		849	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */
790		850
791	if (coro->mainstack && coro->mainstack != main_mainstack)	851	if (coro->mainstack && coro->mainstack != main_mainstack)
792	{	852	{
793	struct coro temp;	853	struct coro temp;
		854
		855	assert (!(coro->flags & CF_RUNNING));
		856
		857	Zero (&temp, 1, struct coro);
		858	temp.save = CORO_SAVE_ALL;
794		859
795	if (coro->flags & CF_RUNNING)	860	if (coro->flags & CF_RUNNING)
796	croak ("FATAL: tried to destroy currently running coroutine");	861	croak ("FATAL: tried to destroy currently running coroutine");
797		862
798	SAVE ((&temp), TRANSFER_SAVE_ALL);	863	save_perl (&temp);
799	LOAD (coro);	864	load_perl (coro);
800		865
801	coro_destroy_stacks ();	866	coro_destroy_stacks ();
802		867
803	LOAD ((&temp)); /* this will get rid of defsv etc.. */	868	load_perl (&temp); /* this will get rid of defsv etc.. */
804		869
805	coro->mainstack = 0;	870	coro->mainstack = 0;
806	}	871	}
807		872
808	cctx_destroy (coro->cctx);	873	cctx_destroy (coro->cctx);
809	SvREFCNT_dec (coro->args);	874	SvREFCNT_dec (coro->args);
810	Safefree (coro);	875
		876	return 1;
811	}	877	}
812		878
813	static int	879	static int
814	coro_state_clear (pTHX_ SV sv, MAGIC mg)	880	coro_state_free (pTHX_ SV sv, MAGIC mg)
815	{	881	{
816	struct coro coro = (struct coro )mg->mg_ptr;	882	struct coro coro = (struct coro )mg->mg_ptr;
817	mg->mg_ptr = 0;	883	mg->mg_ptr = 0;
818		884
		885	if (--coro->refcnt < 0)
		886	{
819	coro_state_destroy (coro);	887	coro_state_destroy (coro);
		888	Safefree (coro);
		889	}
820		890
821	return 0;	891	return 0;
822	}	892	}
823		893
824	static int	894	static int
…		…
831	return 0;	901	return 0;
832	}	902	}
833		903
834	static MGVTBL coro_state_vtbl = {	904	static MGVTBL coro_state_vtbl = {
835	0, 0, 0, 0,	905	0, 0, 0, 0,
836	coro_state_clear,	906	coro_state_free,
837	0,	907	0,
838	#ifdef MGf_DUP	908	#ifdef MGf_DUP
839	coro_state_dup,	909	coro_state_dup,
840	#else	910	#else
841	# define MGf_DUP 0	911	# define MGf_DUP 0
…		…
863	assert (mg->mg_type == PERL_MAGIC_ext);	933	assert (mg->mg_type == PERL_MAGIC_ext);
864	return (struct coro *)mg->mg_ptr;	934	return (struct coro *)mg->mg_ptr;
865	}	935	}
866		936
867	static void	937	static void
868	prepare_transfer (struct transfer_args ta, SV prev, SV *next, int flags)	938	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)
869	{	939	{
870	ta->prev = SvSTATE (prev);	940	ta->prev = SvSTATE (prev_sv);
871	ta->next = SvSTATE (next);	941	ta->next = SvSTATE (next_sv);
872	ta->flags = flags;
873	}	942	}
874		943
875	static void	944	static void
876	api_transfer (SV prev, SV next, int flags)	945	api_transfer (SV prev_sv, SV next_sv)
877	{	946	{
878	struct transfer_args ta;	947	struct transfer_args ta;
879		948
880	prepare_transfer (&ta, prev, next, flags);	949	prepare_transfer (&ta, prev_sv, next_sv);
881	TRANSFER (ta);	950	TRANSFER (ta);
882	}	951	}
883		952
		953	static int
		954	api_save (SV *coro_sv, int new_save)
		955	{
		956	struct coro *coro = SvSTATE (coro_sv);
		957	int old_save = coro->save;
		958
		959	if (new_save >= 0)
		960	coro->save = new_save;
		961
		962	return old_save;
		963	}
		964
884	/ Coro ******************************************************************/	965	/ Coro ******************************************************************/
885		966
886	#define PRIO_MAX 3
887	#define PRIO_HIGH 1
888	#define PRIO_NORMAL 0
889	#define PRIO_LOW -1
890	#define PRIO_IDLE -3
891	#define PRIO_MIN -4
892
893	/* for Coro.pm */
894	static SV *coro_current;
895	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
896	static int coro_nready;
897
898	static void	967	static void
899	coro_enq (SV *coro_sv)	968	coro_enq (SV *coro_sv)
900	{	969	{
901	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	970	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
902	coro_nready++;
903	}	971	}
904		972
905	static SV *	973	static SV *
906	coro_deq (int min_prio)	974	coro_deq (int min_prio)
907	{	975	{
…		…
911	if (min_prio < 0)	979	if (min_prio < 0)
912	min_prio = 0;	980	min_prio = 0;
913		981
914	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	982	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
915	if (AvFILLp (coro_ready [prio]) >= 0)	983	if (AvFILLp (coro_ready [prio]) >= 0)
916	{
917	coro_nready--;
918	return av_shift (coro_ready [prio]);	984	return av_shift (coro_ready [prio]);
919	}
920		985
921	return 0;	986	return 0;
922	}	987	}
923		988
924	static int	989	static int
…		…
932	coro = SvSTATE (coro_sv);	997	coro = SvSTATE (coro_sv);
933		998
934	if (coro->flags & CF_READY)	999	if (coro->flags & CF_READY)
935	return 0;	1000	return 0;
936		1001
937	#if 0 /* this is actually harmless */
938	if (coro->flags & CF_RUNNING)
939	croak ("Coro::ready called on currently running coroutine");
940	#endif
941
942	coro->flags \|= CF_READY;	1002	coro->flags \|= CF_READY;
943		1003
944	LOCK;	1004	LOCK;
945	coro_enq (SvREFCNT_inc (coro_sv));	1005	coro_enq (SvREFCNT_inc (coro_sv));
		1006	++coro_nready;
946	UNLOCK;	1007	UNLOCK;
947		1008
948	return 1;	1009	return 1;
949	}	1010	}
950		1011
951	static int	1012	static int
952	api_is_ready (SV *coro_sv)	1013	api_is_ready (SV *coro_sv)
953	{	1014	{
954	return !!SvSTATE (coro_sv)->flags & CF_READY;	1015	return !!(SvSTATE (coro_sv)->flags & CF_READY);
955	}	1016	}
956		1017
957	static void	1018	static void
958	prepare_schedule (struct transfer_args *ta)	1019	prepare_schedule (struct transfer_args *ta)
959	{	1020	{
960	SV prev, next;	1021	SV prev_sv, next_sv;
961		1022
962	for (;;)	1023	for (;;)
963	{	1024	{
964	LOCK;	1025	LOCK;
965	next = coro_deq (PRIO_MIN);	1026	next_sv = coro_deq (PRIO_MIN);
		1027
		1028	/* nothing to schedule: call the idle handler */
		1029	if (!next_sv)
		1030	{
		1031	dSP;
		1032	UNLOCK;
		1033
		1034	ENTER;
		1035	SAVETMPS;
		1036
		1037	PUSHMARK (SP);
		1038	PUTBACK;
		1039	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1040
		1041	FREETMPS;
		1042	LEAVE;
		1043	continue;
		1044	}
		1045
		1046	ta->next = SvSTATE (next_sv);
		1047
		1048	/* cannot transfer to destroyed coros, skip and look for next */
		1049	if (ta->next->flags & CF_DESTROYED)
		1050	{
		1051	UNLOCK;
		1052	SvREFCNT_dec (next_sv);
		1053	/* coro_nready is already taken care of by destroy */
		1054	continue;
		1055	}
		1056
		1057	--coro_nready;
966	UNLOCK;	1058	UNLOCK;
967
968	if (next)
969	break;	1059	break;
970
971	{
972	dSP;
973
974	ENTER;
975	SAVETMPS;
976
977	PUSHMARK (SP);
978	PUTBACK;
979	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
980
981	FREETMPS;
982	LEAVE;
983	}	1060	}
984	}
985
986	prev = SvRV (coro_current);
987	SvRV_set (coro_current, next);
988		1061
989	/* free this only after the transfer */	1062	/* free this only after the transfer */
		1063	prev_sv = SvRV (coro_current);
		1064	SvRV_set (coro_current, next_sv);
		1065	ta->prev = SvSTATE (prev_sv);
		1066
		1067	assert (ta->next->flags & CF_READY);
		1068	ta->next->flags &= ~CF_READY;
		1069
990	LOCK;	1070	LOCK;
991	free_coro_mortal ();	1071	free_coro_mortal ();
		1072	coro_mortal = prev_sv;
992	UNLOCK;	1073	UNLOCK;
993	coro_mortal = prev;
994
995	assert (!SvROK(prev));//D
996	assert (!SvROK(next));//D
997
998	ta->prev = SvSTATE (prev);
999	ta->next = SvSTATE (next);
1000	ta->flags = TRANSFER_SAVE_ALL;
1001
1002	assert (ta->flags & CF_READY);
1003	ta->next->flags &= ~CF_READY;
1004	}	1074	}
1005		1075
1006	static void	1076	static void
1007	prepare_cede (struct transfer_args *ta)	1077	prepare_cede (struct transfer_args *ta)
1008	{	1078	{
1009	api_ready (coro_current);	1079	api_ready (coro_current);
1010
1011	prepare_schedule (ta);	1080	prepare_schedule (ta);
		1081	}
		1082
		1083	static int
		1084	prepare_cede_notself (struct transfer_args *ta)
		1085	{
		1086	if (coro_nready)
		1087	{
		1088	SV *prev = SvRV (coro_current);
		1089	prepare_schedule (ta);
		1090	api_ready (prev);
		1091	return 1;
		1092	}
		1093	else
		1094	return 0;
1012	}	1095	}
1013		1096
1014	static void	1097	static void
1015	api_schedule (void)	1098	api_schedule (void)
1016	{	1099	{
…		…
1018		1101
1019	prepare_schedule (&ta);	1102	prepare_schedule (&ta);
1020	TRANSFER (ta);	1103	TRANSFER (ta);
1021	}	1104	}
1022		1105
1023	static void	1106	static int
1024	api_cede (void)	1107	api_cede (void)
1025	{	1108	{
1026	struct transfer_args ta;	1109	struct transfer_args ta;
1027		1110
1028	prepare_cede (&ta);	1111	prepare_cede (&ta);
		1112
		1113	if (ta.prev != ta.next)
		1114	{
1029	TRANSFER (ta);	1115	TRANSFER (ta);
		1116	return 1;
		1117	}
		1118	else
		1119	return 0;
		1120	}
		1121
		1122	static int
		1123	api_cede_notself (void)
		1124	{
		1125	struct transfer_args ta;
		1126
		1127	if (prepare_cede_notself (&ta))
		1128	{
		1129	TRANSFER (ta);
		1130	return 1;
		1131	}
		1132	else
		1133	return 0;
1030	}	1134	}
1031		1135
1032	MODULE = Coro::State PACKAGE = Coro::State	1136	MODULE = Coro::State PACKAGE = Coro::State
1033		1137
1034	PROTOTYPES: DISABLE	1138	PROTOTYPES: DISABLE
…		…
1040	#endif	1144	#endif
1041	BOOT_PAGESIZE;	1145	BOOT_PAGESIZE;
1042		1146
1043	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1147	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1044		1148
1045	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	1149	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1046	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	1150	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1047	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	1151	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
		1152	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
		1153	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1048		1154
1049	main_mainstack = PL_mainstack;	1155	main_mainstack = PL_mainstack;
1050		1156
1051	coroapi.ver = CORO_API_VERSION;	1157	coroapi.ver = CORO_API_VERSION;
1052	coroapi.transfer = api_transfer;	1158	coroapi.transfer = api_transfer;
…		…
1062	HV *hv;	1168	HV *hv;
1063	int i;	1169	int i;
1064		1170
1065	Newz (0, coro, 1, struct coro);	1171	Newz (0, coro, 1, struct coro);
1066	coro->args = newAV ();	1172	coro->args = newAV ();
		1173	coro->save = CORO_SAVE_ALL;
1067	coro->flags = CF_NEW;	1174	coro->flags = CF_NEW;
1068		1175
1069	hv = newHV ();	1176	hv = newHV ();
1070	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1177	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1071	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1178	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1072		1179
1073	for (i = 1; i < items; i++)	1180	for (i = 1; i < items; i++)
1074	av_push (coro->args, newSVsv (ST (i)));	1181	av_push (coro->args, newSVsv (ST (i)));
1075	}	1182	}
1076	OUTPUT:	1183	OUTPUT:
		1184	RETVAL
		1185
		1186	int
		1187	save (SV *coro, int new_save = -1)
		1188	CODE:
		1189	RETVAL = api_save (coro, new_save);
		1190	OUTPUT:
1077	RETVAL	1191	RETVAL
1078		1192
1079	void	1193	void
1080	_set_stacklevel (...)	1194	_set_stacklevel (...)
1081	ALIAS:	1195	ALIAS:
1082	Coro::State::transfer = 1	1196	Coro::State::transfer = 1
1083	Coro::schedule = 2	1197	Coro::schedule = 2
1084	Coro::cede = 3	1198	Coro::cede = 3
		1199	Coro::cede_notself = 4
1085	CODE:	1200	CODE:
1086	{	1201	{
1087	struct transfer_args ta;	1202	struct transfer_args ta;
1088		1203
1089	switch (ix)	1204	switch (ix)
1090	{	1205	{
1091	case 0:	1206	case 0:
1092	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1207	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1093	ta.next = 0;	1208	ta.next = 0;
1094	ta.flags = TRANSFER_SET_STACKLEVEL;
1095	break;	1209	break;
1096		1210
1097	case 1:	1211	case 1:
1098	if (items != 3)	1212	if (items != 2)
1099	croak ("Coro::State::transfer (prev,next,flags) expects three arguments, not %d", items);	1213	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1100		1214
1101	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));	1215	prepare_transfer (&ta, ST (0), ST (1));
1102	break;	1216	break;
1103		1217
1104	case 2:	1218	case 2:
1105	prepare_schedule (&ta);	1219	prepare_schedule (&ta);
1106	break;	1220	break;
1107		1221
1108	case 3:	1222	case 3:
1109	prepare_cede (&ta);	1223	prepare_cede (&ta);
1110	break;	1224	break;
		1225
		1226	case 4:
		1227	if (!prepare_cede_notself (&ta))
		1228	XSRETURN_EMPTY;
		1229
		1230	break;
1111	}	1231	}
1112		1232
		1233	BARRIER;
1113	TRANSFER (ta);	1234	TRANSFER (ta);
1114	}
1115		1235
1116	void	1236	if (GIMME_V != G_VOID && ta.next != ta.prev)
1117	_clone_state_from (SV dst, SV src)	1237	XSRETURN_YES;
		1238	}
		1239
		1240	bool
		1241	_destroy (SV *coro_sv)
1118	CODE:	1242	CODE:
1119	{	1243	RETVAL = coro_state_destroy (SvSTATE (coro_sv));
1120	struct coro *coro_src = SvSTATE (src);	1244	OUTPUT:
1121		1245	RETVAL
1122	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
1123
1124	++coro_src->refcnt;
1125	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;
1126	}
1127		1246
1128	void	1247	void
1129	_exit (code)	1248	_exit (code)
1130	int code	1249	int code
1131	PROTOTYPE: $	1250	PROTOTYPE: $
…		…
1168	coro_ready[i] = newAV ();	1287	coro_ready[i] = newAV ();
1169		1288
1170	{	1289	{
1171	SV *sv = perl_get_sv("Coro::API", 1);	1290	SV *sv = perl_get_sv("Coro::API", 1);
1172		1291
1173	coroapi.schedule = api_schedule;	1292	coroapi.schedule = api_schedule;
		1293	coroapi.save = api_save;
1174	coroapi.cede = api_cede;	1294	coroapi.cede = api_cede;
		1295	coroapi.cede_notself = api_cede_notself;
1175	coroapi.ready = api_ready;	1296	coroapi.ready = api_ready;
1176	coroapi.is_ready = api_is_ready;	1297	coroapi.is_ready = api_is_ready;
1177	coroapi.nready = &coro_nready;	1298	coroapi.nready = &coro_nready;
1178	coroapi.current = coro_current;	1299	coroapi.current = coro_current;
1179		1300
1180	GCoroAPI = &coroapi;	1301	GCoroAPI = &coroapi;
1181	sv_setiv (sv, (IV)&coroapi);	1302	sv_setiv (sv, (IV)&coroapi);
1182	SvREADONLY_on (sv);	1303	SvREADONLY_on (sv);
1183	}	1304	}
1184	}	1305	}
		1306
		1307	void
		1308	_set_current (SV *current)
		1309	PROTOTYPE: $
		1310	CODE:
		1311	SvREFCNT_dec (SvRV (coro_current));
		1312	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1185		1313
1186	int	1314	int
1187	prio (Coro::State coro, int newprio = 0)	1315	prio (Coro::State coro, int newprio = 0)
1188	ALIAS:	1316	ALIAS:
1189	nice = 1	1317	nice = 1
…		…
1192	RETVAL = coro->prio;	1320	RETVAL = coro->prio;
1193		1321
1194	if (items > 1)	1322	if (items > 1)
1195	{	1323	{
1196	if (ix)	1324	if (ix)
1197	newprio += coro->prio;	1325	newprio = coro->prio - newprio;
1198		1326
1199	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	1327	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
1200	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	1328	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
1201		1329
1202	coro->prio = newprio;	1330	coro->prio = newprio;
1203	}	1331	}
1204	}	1332	}
		1333	OUTPUT:
		1334	RETVAL
1205		1335
1206	SV *	1336	SV *
1207	ready (SV *self)	1337	ready (SV *self)
1208	PROTOTYPE: $	1338	PROTOTYPE: $
1209	CODE:	1339	CODE:
…		…
1225	CODE:	1355	CODE:
1226	RETVAL = coro_nready;	1356	RETVAL = coro_nready;
1227	OUTPUT:	1357	OUTPUT:
1228	RETVAL	1358	RETVAL
1229		1359
1230	void
1231	_set_current (SV *current)
1232	PROTOTYPE: $
1233	CODE:
1234	SvREFCNT_dec (SvRV (coro_current));
1235	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1236
1237	MODULE = Coro::State PACKAGE = Coro::AIO	1360	MODULE = Coro::State PACKAGE = Coro::AIO
1238		1361
1239	SV *	1362	SV *
1240	_get_state ()	1363	_get_state ()
1241	CODE:	1364	CODE:
1242	{	1365	{
		1366	struct io_state *data;
		1367
1243	RETVAL = newSV (sizeof (struct io_state));	1368	RETVAL = newSV (sizeof (struct io_state));
1244	struct io_state data = (struct io_state )SvPVX (RETVAL);	1369	data = (struct io_state *)SvPVX (RETVAL);
1245	SvCUR_set (RETVAL, sizeof (struct io_state));	1370	SvCUR_set (RETVAL, sizeof (struct io_state));
1246	SvPOK_only (RETVAL);	1371	SvPOK_only (RETVAL);
1247		1372
1248	data->errorno = errno;	1373	data->errorno = errno;
1249	data->laststype = PL_laststype;	1374	data->laststype = PL_laststype;

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Comparing Coro/Coro/State.xs (file contents): Revision 1.120 by root, Sat Dec 2 18:01:30 2006 UTC vs. Revision 1.140 by root, Sat Jan 20 19:52:15 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.120 by root, Sat Dec 2 18:01:30 2006 UTC vs.
Revision 1.140 by root, Sat Jan 20 19:52:15 2007 UTC