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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.76 by root, Thu Oct 26 08:45:56 2006 UTC vs.
Revision 1.90 by root, Sat Nov 25 00:56:35 2006 UTC

…		…
29	# endif	29	# endif
30	#endif	30	#endif
31		31
32	#include <errno.h>	32	#include <errno.h>
33		33
		34	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
		35	# undef STACKGUARD
		36	#endif
		37
		38	#ifndef STACKGUARD
		39	# define STACKGUARD 0
		40	#endif
		41
34	#ifdef HAVE_MMAP	42	#ifdef HAVE_MMAP
35	# include <unistd.h>	43	# include <unistd.h>
36	# include <sys/mman.h>	44	# include <sys/mman.h>
37	# ifndef MAP_ANONYMOUS	45	# ifndef MAP_ANONYMOUS
38	# ifdef MAP_ANON	46	# ifdef MAP_ANON
39	# define MAP_ANONYMOUS MAP_ANON	47	# define MAP_ANONYMOUS MAP_ANON
40	# else	48	# else
41	# undef HAVE_MMAP	49	# undef HAVE_MMAP
42	# endif	50	# endif
43	# endif	51	# endif
		52	# include <limits.h>
		53	# ifndef PAGESIZE
		54	# define PAGESIZE pagesize
		55	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
		56	static long pagesize;
		57	# else
		58	# define BOOT_PAGESIZE
44	#endif	59	# endif
		60	#endif
45		61
46	#define SUB_INIT "Coro::State::initialize"	62	#define SUB_INIT "Coro::State::initialize"
47	#define UCORO_STATE "_coro_state"
48		63
49	/* The next macro should declare a variable stacklevel that contains and approximation	64	/* The next macro should declare a variable stacklevel that contains and approximation
50	* to the current C stack pointer. Its property is that it changes with each call	65	* to the current C stack pointer. Its property is that it changes with each call
51	* and should be unique. */	66	* and should be unique. */
52	#define dSTACKLEVEL void *stacklevel = &stacklevel	67	#define dSTACKLEVEL void *stacklevel = &stacklevel
…		…
66	# define UNLOCK (void)0	81	# define UNLOCK (void)0
67	#endif	82	#endif
68		83
69	static struct CoroAPI coroapi;	84	static struct CoroAPI coroapi;
70	static AV main_mainstack; / used to differentiate between $main and others */	85	static AV main_mainstack; / used to differentiate between $main and others */
71	static HV *coro_state_stash;	86	static HV coro_state_stash, coro_stash;
72	static SV *ucoro_state_sv;
73	static U32 ucoro_state_hash;
74	static SV coro_mortal; / will be freed after next transfer */	87	static SV coro_mortal; / will be freed after next transfer */
75		88
76	/* this is actually not only the c stack but also c registers etc... */	89	/* this is actually not just the c stack but also c registers etc... */
77	typedef struct {	90	typedef struct coro_stack {
78	int refcnt; /* pointer reference counter */	91	struct coro_stack *next;
79	int usecnt; /* shared by how many coroutines */
80	int gencnt; /* generation counter */
81		92
82	coro_context cctx;	93	void *idle_sp;
83
84	void *sptr;	94	void *sptr;
85	long ssize; /* positive == mmap, otherwise malloc */	95	long ssize; /* positive == mmap, otherwise malloc */
		96
		97	/* cpu state */
		98	coro_context cctx;
86	} coro_stack;	99	} coro_stack;
87		100
		101	static coro_stack *main_stack;
		102
88	struct coro {	103	struct coro {
89	/* the top-level JMPENV for each coroutine, needed to catch dies. */
90	JMPENV start_env;
91
92	/* the optional C context */
93	coro_stack *stack;
94	void *cursp;
95	int gencnt;
96
97	/* optionally saved, might be zero */	104	/* optionally saved, might be zero */
98	AV *defav;	105	AV *defav;
99	SV *defsv;	106	SV *defsv;
100	SV *errsv;	107	SV *errsv;
101		108
102	/* saved global state not related to stacks */	109	/* saved global state not related to stacks */
103	U8 dowarn;	110	U8 dowarn;
104	I32 in_eval;	111	I32 in_eval;
		112
		113	/* the c stack, if any */
		114	coro_stack *stack;
105		115
106	/* the stacks and related info (callchain etc..) */	116	/* the stacks and related info (callchain etc..) */
107	PERL_SI *curstackinfo;	117	PERL_SI *curstackinfo;
108	AV *curstack;	118	AV *curstack;
109	AV *mainstack;	119	AV *mainstack;
…		…
132	I32 retstack_max;	142	I32 retstack_max;
133	PMOP *curpm;	143	PMOP *curpm;
134	COP *curcop;	144	COP *curcop;
135	JMPENV *top_env;	145	JMPENV *top_env;
136		146
		147	/* coro process data */
		148	int prio;
		149
137	/* data associated with this coroutine (initial args) */	150	/* data associated with this coroutine (initial args) */
138	AV *args;	151	AV *args;
		152	int refcnt;
139	};	153	};
140		154
141	typedef struct coro *Coro__State;	155	typedef struct coro *Coro__State;
142	typedef struct coro *Coro__State_or_hashref;	156	typedef struct coro *Coro__State_or_hashref;
143		157
144	/* mostly copied from op.c:cv_clone2 */	158	static AV *
145	STATIC AV *	159	coro_clone_padlist (pTHX_ CV *cv)
146	clone_padlist (pTHX_ AV *protopadlist)
147	{	160	{
148	AV *av;	161	AV *padlist = CvPADLIST (cv);
149	I32 ix;
150	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
151	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
152	SV **pname = AvARRAY (protopad_name);
153	SV **ppad = AvARRAY (protopad);
154	I32 fname = AvFILLp (protopad_name);
155	I32 fpad = AvFILLp (protopad);
156	AV newpadlist, newpad_name, *newpad;	162	AV newpadlist, newpad;
157	SV **npad;
158
159	newpad_name = newAV ();
160	for (ix = fname; ix >= 0; ix--)
161	av_store (newpad_name, ix, SvREFCNT_inc (pname[ix]));
162
163	newpad = newAV ();
164	av_fill (newpad, AvFILLp (protopad));
165	npad = AvARRAY (newpad);
166		163
167	newpadlist = newAV ();	164	newpadlist = newAV ();
168	AvREAL_off (newpadlist);	165	AvREAL_off (newpadlist);
169	av_store (newpadlist, 0, (SV *) newpad_name);	166	#if PERL_VERSION < 9
		167	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
		168	#else
		169	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
		170	#endif
		171	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
		172	--AvFILLp (padlist);
		173
		174	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));
170	av_store (newpadlist, 1, (SV *) newpad);	175	av_store (newpadlist, 1, (SV *)newpad);
171
172	av = newAV (); /* will be @_ */
173	av_extend (av, 0);
174	av_store (newpad, 0, (SV *) av);
175	AvREIFY_on (av);
176
177	for (ix = fpad; ix > 0; ix--)
178	{
179	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
180
181	if (namesv && namesv != &PL_sv_undef)
182	{
183	char name = SvPVX (namesv); / XXX */
184
185	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')
186	{ /* lexical from outside? */
187	npad[ix] = SvREFCNT_inc (ppad[ix]);
188	}
189	else
190	{ /* our own lexical */
191	SV *sv;
192	if (*name == '&')
193	sv = SvREFCNT_inc (ppad[ix]);
194	else if (*name == '@')
195	sv = (SV *) newAV ();
196	else if (*name == '%')
197	sv = (SV *) newHV ();
198	else
199	sv = NEWSV (0, 0);
200
201	#ifdef SvPADBUSY
202	if (!SvPADBUSY (sv))
203	#endif
204	SvPADMY_on (sv);
205
206	npad[ix] = sv;
207	}
208	}
209	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))
210	{
211	npad[ix] = SvREFCNT_inc (ppad[ix]);
212	}
213	else
214	{
215	SV *sv = NEWSV (0, 0);
216	SvPADTMP_on (sv);
217	npad[ix] = sv;
218	}
219	}
220
221	#if 0 /* return -ENOTUNDERSTOOD */
222	/* Now that vars are all in place, clone nested closures. */
223
224	for (ix = fpad; ix > 0; ix--) {
225	SV* namesv = (ix <= fname) ? pname[ix] : Nullsv;
226	if (namesv
227	&& namesv != &PL_sv_undef
228	&& !(SvFLAGS(namesv) & SVf_FAKE)
229	&& *SvPVX(namesv) == '&'
230	&& CvCLONE(ppad[ix]))
231	{
232	CV kid = cv_clone((CV)ppad[ix]);
233	SvREFCNT_dec(ppad[ix]);
234	CvCLONE_on(kid);
235	SvPADMY_on(kid);
236	npad[ix] = (SV*)kid;
237	}
238	}
239	#endif
240		176
241	return newpadlist;	177	return newpadlist;
242	}	178	}
243		179
244	STATIC void	180	static void
245	free_padlist (pTHX_ AV *padlist)	181	free_padlist (pTHX_ AV *padlist)
246	{	182	{
247	/* may be during global destruction */	183	/* may be during global destruction */
248	if (SvREFCNT (padlist))	184	if (SvREFCNT (padlist))
249	{	185	{
…		…
263		199
264	SvREFCNT_dec ((SV*)padlist);	200	SvREFCNT_dec ((SV*)padlist);
265	}	201	}
266	}	202	}
267		203
268	STATIC int	204	static int
269	coro_cv_free (pTHX_ SV sv, MAGIC mg)	205	coro_cv_free (pTHX_ SV sv, MAGIC mg)
270	{	206	{
271	AV *padlist;	207	AV *padlist;
272	AV av = (AV )mg->mg_obj;	208	AV av = (AV )mg->mg_obj;
273		209
…		…
283	#define PERL_MAGIC_coro PERL_MAGIC_ext	219	#define PERL_MAGIC_coro PERL_MAGIC_ext
284		220
285	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	221	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
286		222
287	/* the next two functions merely cache the padlists */	223	/* the next two functions merely cache the padlists */
288	STATIC void	224	static void
289	get_padlist (pTHX_ CV *cv)	225	get_padlist (pTHX_ CV *cv)
290	{	226	{
291	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	227	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
292		228
293	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)	229	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
294	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);	230	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
295	else	231	else
		232	{
		233	#if 0
		234	/* this should work - but it doesn't :( */
		235	CV *cp = Perl_cv_clone (aTHX_ cv);
		236	CvPADLIST (cv) = CvPADLIST (cp);
		237	CvPADLIST (cp) = 0;
		238	SvREFCNT_dec (cp);
		239	#else
296	CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv));	240	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
		241	#endif
		242	}
297	}	243	}
298		244
299	STATIC void	245	static void
300	put_padlist (pTHX_ CV *cv)	246	put_padlist (pTHX_ CV *cv)
301	{	247	{
302	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	248	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
303		249
304	if (!mg)	250	if (!mg)
…		…
421	}	367	}
422		368
423	PUSHs ((SV *)CvPADLIST(cv));	369	PUSHs ((SV *)CvPADLIST(cv));
424	PUSHs ((SV *)cv);	370	PUSHs ((SV *)cv);
425		371
426	get_padlist (aTHX_ cv); /* this is a monster */	372	get_padlist (aTHX_ cv);
427	}	373	}
428	}	374	}
429	#ifdef CXt_FORMAT	375	#ifdef CXt_FORMAT
430	else if (CxTYPE(cx) == CXt_FORMAT)	376	else if (CxTYPE(cx) == CXt_FORMAT)
431	{	377	{
…		…
491	* allocate various perl stacks. This is an exact copy	437	* allocate various perl stacks. This is an exact copy
492	* of perl.c:init_stacks, except that it uses less memory	438	* of perl.c:init_stacks, except that it uses less memory
493	* on the (sometimes correct) assumption that coroutines do	439	* on the (sometimes correct) assumption that coroutines do
494	* not usually need a lot of stackspace.	440	* not usually need a lot of stackspace.
495	*/	441	*/
496	STATIC void	442	static void
497	coro_init_stacks (pTHX)	443	coro_init_stacks (pTHX)
498	{	444	{
499	LOCK;	445	LOCK;
500		446
501	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	447	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
…		…
538	}	484	}
539		485
540	/*	486	/*
541	* destroy the stacks, the callchain etc...	487	* destroy the stacks, the callchain etc...
542	*/	488	*/
543	STATIC void	489	static void
544	destroy_stacks(pTHX)	490	destroy_stacks(pTHX)
545	{	491	{
546	if (!IN_DESTRUCT)	492	if (!IN_DESTRUCT)
547	{	493	{
548	/* is this ugly, I ask? */	494	/* is this ugly, I ask? */
…		…
586	Safefree (PL_retstack);	532	Safefree (PL_retstack);
587	#endif	533	#endif
588	}	534	}
589		535
590	static void	536	static void
591	allocate_stack (Coro__State ctx, int alloc)	537	setup_coro (struct coro *coro)
592	{
593	coro_stack *stack;
594
595	New (0, stack, 1, coro_stack);
596
597	stack->refcnt = 1;
598	stack->usecnt = 1;
599	stack->gencnt = ctx->gencnt = 0;
600
601	if (alloc)
602	{
603	#if HAVE_MMAP
604	stack->ssize = STACKSIZE * sizeof (long); /* mmap should do allocate-on-write for us */
605	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
606	if (stack->sptr == (void *)-1)
607	#endif
608	{
609	stack->ssize = - (STACKSIZE * (long)sizeof (long));
610	New (0, stack->sptr, STACKSIZE, long);
611	}
612	}
613	else
614	stack->sptr = 0;
615
616	ctx->stack = stack;
617	}
618
619	static void
620	deallocate_stack (Coro__State ctx)
621	{
622	coro_stack *stack = ctx->stack;
623
624	ctx->stack = 0;
625
626	if (stack)
627	{
628	if (!--stack->refcnt)
629	{
630	#ifdef HAVE_MMAP
631	if (stack->ssize > 0 && stack->sptr)
632	munmap (stack->sptr, stack->ssize);
633	else
634	#endif
635	Safefree (stack->sptr);
636
637	Safefree (stack);
638	}
639	else if (ctx->gencnt == stack->gencnt)
640	--stack->usecnt;
641	}
642	}
643
644	static void
645	setup_coro (void *arg)
646	{	538	{
647	/*	539	/*
648	* emulate part of the perl startup here.	540	* emulate part of the perl startup here.
649	*/	541	*/
650	dTHX;	542	dTHX;
651	dSP;	543	dSP;
652	Coro__State ctx = (Coro__State)arg;	544	UNOP myop;
653	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);	545	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
654		546
655	coro_init_stacks (aTHX);	547	coro_init_stacks (aTHX);
656	/PL_curcop = 0;/	548	/PL_curcop = 0;/
657	/PL_in_eval = PL_in_eval;/ /* inherit */	549	/PL_in_eval = PL_in_eval;/ /* inherit */
658	SvREFCNT_dec (GvAV (PL_defgv));	550	SvREFCNT_dec (GvAV (PL_defgv));
659	GvAV (PL_defgv) = ctx->args; ctx->args = 0;	551	GvAV (PL_defgv) = coro->args; coro->args = 0;
660		552
661	SPAGAIN;	553	SPAGAIN;
662		554
663	if (ctx->stack)	555	Zero (&myop, 1, UNOP);
664	{	556	myop.op_next = Nullop;
665	ctx->cursp = 0;	557	myop.op_flags = OPf_WANT_VOID;
666		558
		559	PL_op = (OP *)&myop;
		560
667	PUSHMARK(SP);	561	PUSHMARK(SP);
		562	XPUSHs (sub_init);
668	PUTBACK;	563	PUTBACK;
669	(void) call_sv (sub_init, G_VOID\|G_NOARGS\|G_EVAL);	564	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
		565	SPAGAIN;
670		566
671	if (SvTRUE (ERRSV))	567	ENTER; /* necessary e.g. for dounwind */
672	croak (NULL);	568	}
673	else	569
674	croak ("FATAL: CCTXT coroutine returned!");	570	static void
		571	transfer_tail ()
		572	{
		573	if (coro_mortal)
		574	{
		575	SvREFCNT_dec (coro_mortal);
		576	coro_mortal = 0;
675	}	577	}
676	else
677	{
678	UNOP myop;
679		578
680	PL_op = (OP *)&myop;	579	UNLOCK;
681
682	Zero(&myop, 1, UNOP);
683	myop.op_next = Nullop;
684	myop.op_flags = OPf_WANT_VOID;
685
686	PUSHMARK(SP);
687	XPUSHs (sub_init);
688	/*
689	* the next line is slightly wrong, as PL_op->op_next
690	* is actually being executed so we skip the first op.
691	* that doesn't matter, though, since it is only
692	* pp_nextstate and we never return...
693	* ah yes, and I don't care anyways ;)
694	*/
695	PUTBACK;
696	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
697	SPAGAIN;
698
699	ENTER; /* necessary e.g. for dounwind */
700	}
701	}	580	}
702		581
703	static void	582	static void
704	continue_coro (void *arg)	583	coro_run (void *arg)
705	{	584	{
706	/*	585	/*
707	* this is a _very_ stripped down perl interpreter ;)	586	* this is a _very_ stripped down perl interpreter ;)
708	*/	587	*/
709	dTHX;	588	dTHX;
710	Coro__State ctx = (Coro__State)arg;
711		589
		590	transfer_tail ();
		591
712	PL_top_env = &ctx->start_env;	592	PL_top_env = &PL_start_env;
713
714	ctx->cursp = 0;
715	PL_op = PL_op->op_next;	593	PL_restartop = PL_op->op_next;
716	CALLRUNOPS(aTHX);	594	/* somebody will hit me for both perl_run and PL_restart_top */
		595	perl_run (aTHX_ PERL_GET_CONTEXT);
717		596
718	abort ();	597	abort ();
719	}	598	}
720		599
721	STATIC void	600	static coro_stack *
		601	stack_new ()
		602	{
		603	coro_stack *stack;
		604
		605	New (0, stack, 1, coro_stack);
		606
		607	#if HAVE_MMAP
		608
		609	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */
		610	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
		611
		612	if (stack->sptr == (void *)-1)
		613	{
		614	fprintf (stderr, "FATAL: unable to mmap stack for coroutine\n");
		615	_exit (EXIT_FAILURE);
		616	}
		617
		618	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
		619
		620	#else
		621
		622	stack->ssize = STACKSIZE * (long)sizeof (long);
		623	New (0, stack->sptr, STACKSIZE, long);
		624
		625	if (!stack->sptr)
		626	{
		627	fprintf (stderr, "FATAL: unable to malloc stack for coroutine\n");
		628	_exit (EXIT_FAILURE);
		629	}
		630
		631	#endif
		632
		633	coro_create (&stack->cctx, coro_run, 0, stack->sptr, stack->ssize);
		634
		635	return stack;
		636	}
		637
		638	static void
		639	stack_free (coro_stack *stack)
		640	{
		641	if (!stack \|\| stack == main_stack)
		642	return;
		643
		644	#if HAVE_MMAP
		645	munmap (stack->sptr, stack->ssize);
		646	#else
		647	Safefree (stack->sptr);
		648	#endif
		649
		650	Safefree (stack);
		651	}
		652
		653	static coro_stack *stack_first;
		654
		655	static void
		656	stack_get (struct coro *coro)
		657	{
		658	if (stack_first)
		659	{
		660	coro->stack = stack_first;
		661	stack_first = stack_first->next;
		662	}
		663	else
		664	coro->stack = stack_new ();
		665	}
		666
		667	static void
		668	stack_put (coro_stack *stack)
		669	{
		670	stack->next = stack_first;
		671	stack_first = stack;
		672	}
		673
		674	/* never call directly, always through the coro_state_transfer global variable */
		675	static void
722	transfer (pTHX_ struct coro prev, struct coro next, int flags)	676	transfer_impl (pTHX_ struct coro prev, struct coro next, int flags)
723	{	677	{
724	dSTACKLEVEL;	678	dSTACKLEVEL;
725		679
		680	/* sometimes transfer is only called to set idle_sp */
		681	if (!prev->stack->idle_sp)
		682	prev->stack->idle_sp = stacklevel;
		683
		684	LOCK;
		685
726	if (prev != next)	686	if (prev != next)
727	{	687	{
		688	coro_stack *prev_stack = prev->stack;
		689
		690	/* possibly "free" the stack */
		691	if (prev_stack->idle_sp == stacklevel)
		692	{
		693	stack_put (prev_stack);
		694	prev->stack = 0;
		695	}
		696
728	if (next->mainstack)	697	if (next->mainstack)
729	{	698	{
730	LOCK;	699	/* coroutine already started */
731	SAVE (prev, flags);	700	SAVE (prev, flags);
732	LOAD (next);	701	LOAD (next);
733	UNLOCK;
734
735	/* mark this state as in-use */
736	next->mainstack = 0;
737	next->tmps_ix = -2;
738
739	/* stacklevel changed? if yes, grab the stack for us! */
740	if (flags & TRANSFER_SAVE_CCTXT)
741	{
742	if (!prev->stack)
743	allocate_stack (prev, 0);
744	else if (prev->cursp != stacklevel
745	&& prev->stack->usecnt > 1)
746	{
747	prev->gencnt = ++prev->stack->gencnt;
748	prev->stack->usecnt = 1;
749	}
750
751	/* has our stack been invalidated? */
752	if (next->stack && next->stack->gencnt != next->gencnt)
753	{
754	deallocate_stack (next);
755	allocate_stack (next, 1);
756	coro_create (&(next->stack->cctx),
757	continue_coro, (void *)next,
758	next->stack->sptr, labs (next->stack->ssize));
759	}
760
761	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
762	prev->cursp = stacklevel;
763	/* don't add any code here */
764	}
765	else
766	next->cursp = stacklevel;
767	}	702	}
768	else if (next->tmps_ix == -2)
769	croak ("tried to transfer to running coroutine");
770	else	703	else
771	{	704	{
772	LOCK;	705	/* need to start coroutine */
773	SAVE (prev, -1); /* first get rid of the old state */	706	/* first get rid of the old state */
774	UNLOCK;	707	SAVE (prev, -1);
775		708	/* setup coroutine call */
776	if (flags & TRANSFER_SAVE_CCTXT)
777	{
778	if (!prev->stack)
779	allocate_stack (prev, 0);
780
781	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
782	{
783	PL_top_env = &next->start_env;
784
785	setup_coro (next);
786	next->cursp = stacklevel;
787
788	prev->stack->refcnt++;
789	prev->stack->usecnt++;
790	next->stack = prev->stack;
791	next->gencnt = prev->gencnt;
792	}
793	else
794	{
795	assert (!next->stack);
796	allocate_stack (next, 1);
797	coro_create (&(next->stack->cctx),
798	setup_coro, (void *)next,
799	next->stack->sptr, labs (next->stack->ssize));
800	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
801	prev->cursp = stacklevel;
802	/* don't add any code here */
803	}
804	}
805	else
806	{
807	setup_coro (next);	709	setup_coro (next);
808	next->cursp = stacklevel;	710	/* need to change stack from main_stack to real one */
809	}	711	next->stack = 0;
810	}	712	}
		713
		714	if (!next->stack)
		715	stack_get (next);
		716
		717	if (prev_stack != next->stack)
		718	coro_transfer (&prev_stack->cctx, &next->stack->cctx);
811	}	719	}
812		720
813	LOCK;	721	transfer_tail ();
814	if (coro_mortal)	722	}
		723
		724	/* use this function pointer to call the above function */
		725	/* this is done to increase chances of the compiler not inlining the call */
		726	void (coro_state_transfer)(pTHX_ struct coro prev, struct coro *next, int flags) = transfer_impl;
		727
		728	static void
		729	coro_state_destroy (struct coro *coro)
		730	{
		731	if (coro->refcnt--)
		732	return;
		733
		734	if (coro->mainstack && coro->mainstack != main_mainstack)
815	{	735	{
816	SvREFCNT_dec (coro_mortal);	736	struct coro temp;
		737
		738	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
		739	LOAD (aTHX_ coro);
		740
		741	destroy_stacks (aTHX);
		742
		743	LOAD ((&temp)); /* this will get rid of defsv etc.. */
		744
817	coro_mortal = 0;	745	coro->mainstack = 0;
818	}	746	}
819	UNLOCK;
820	}
821		747
822	#define SV_CORO(sv,func) \	748	stack_free (coro->stack);
823	do { \	749	SvREFCNT_dec (coro->args);
824	if (SvROK (sv)) \	750	Safefree (coro);
825	sv = SvRV (sv); \	751	}
826	\
827	if (SvTYPE (sv) == SVt_PVHV) \
828	{ \
829	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
830	\
831	if (!he) \
832	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
833	\
834	(sv) = SvRV (HeVAL(he)); \
835	} \
836	\
837	/* must also be changed inside Coro::Cont::yield */ \
838	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
839	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
840	\
841	} while(0)
842		752
843	#define SvSTATE(sv) INT2PTR (struct coro *, SvIV (sv))
844
845	static void	753	static int
		754	coro_state_clear (SV sv, MAGIC mg)
		755	{
		756	struct coro coro = (struct coro )mg->mg_ptr;
		757	mg->mg_ptr = 0;
		758
		759	coro_state_destroy (coro);
		760
		761	return 0;
		762	}
		763
		764	static int
		765	coro_state_dup (MAGIC mg, CLONE_PARAMS params)
		766	{
		767	struct coro coro = (struct coro )mg->mg_ptr;
		768
		769	++coro->refcnt;
		770
		771	return 0;
		772	}
		773
		774	static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 };
		775
		776	static struct coro *
		777	SvSTATE (SV *coro)
		778	{
		779	HV *stash;
		780	MAGIC *mg;
		781
		782	if (SvROK (coro))
		783	coro = SvRV (coro);
		784
		785	stash = SvSTASH (coro);
		786	if (stash != coro_stash && stash != coro_state_stash)
		787	{
		788	/* very slow, but rare, check */
		789	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		790	croak ("Coro::State object required");
		791	}
		792
		793	mg = SvMAGIC (coro);
		794	assert (mg->mg_type == PERL_MAGIC_ext);
		795	return (struct coro *)mg->mg_ptr;
		796	}
		797
		798	static void
846	api_transfer(pTHX_ SV prev, SV next, int flags)	799	api_transfer (pTHX_ SV prev, SV next, int flags)
847	{	800	{
848	SV_CORO (prev, "Coro::transfer");
849	SV_CORO (next, "Coro::transfer");
850
851	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);	801	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
852	}	802	}
853		803
854	/ Coro ******************************************************************/	804	/ Coro ******************************************************************/
855		805
856	#define PRIO_MAX 3	806	#define PRIO_MAX 3
…		…
860	#define PRIO_IDLE -3	810	#define PRIO_IDLE -3
861	#define PRIO_MIN -4	811	#define PRIO_MIN -4
862		812
863	/* for Coro.pm */	813	/* for Coro.pm */
864	static GV coro_current, coro_idle;	814	static GV coro_current, coro_idle;
865	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	815	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
866	static int coro_nready;	816	static int coro_nready;
867		817
868	static void	818	static void
869	coro_enq (pTHX_ SV *sv)	819	coro_enq (pTHX_ SV *sv)
870	{	820	{
871	SV **xprio;
872	int prio;	821	int prio;
873		822
874	if (SvTYPE (sv) != SVt_PVHV)	823	if (SvTYPE (sv) != SVt_PVHV)
875	croak ("Coro::ready tried to enqueue something that is not a coroutine");	824	croak ("Coro::ready tried to enqueue something that is not a coroutine");
876		825
877	xprio = hv_fetch ((HV *)sv, "prio", 4, 0);	826	prio = SvSTATE (sv)->prio;
878	prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
879
880	prio = prio > PRIO_MAX ? PRIO_MAX
881	: prio < PRIO_MIN ? PRIO_MIN
882	: prio;
883		827
884	av_push (coro_ready [prio - PRIO_MIN], sv);	828	av_push (coro_ready [prio - PRIO_MIN], sv);
885	coro_nready++;	829	coro_nready++;
886	}	830	}
887		831
…		…
893	min_prio -= PRIO_MIN;	837	min_prio -= PRIO_MIN;
894	if (min_prio < 0)	838	if (min_prio < 0)
895	min_prio = 0;	839	min_prio = 0;
896		840
897	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	841	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
898	if (av_len (coro_ready[prio]) >= 0)	842	if (AvFILLp (coro_ready [prio]) >= 0)
899	{	843	{
900	coro_nready--;	844	coro_nready--;
901	return av_shift (coro_ready[prio]);	845	return av_shift (coro_ready [prio]);
902	}	846	}
903		847
904	return 0;	848	return 0;
905	}	849	}
906		850
…		…
921	api_schedule (void)	865	api_schedule (void)
922	{	866	{
923	dTHX;	867	dTHX;
924		868
925	SV prev, next;	869	SV prev, next;
		870	SV *current = GvSV (coro_current);
926		871
		872	for (;;)
		873	{
927	LOCK;	874	LOCK;
928		875
929	prev = SvRV (GvSV (coro_current));
930	next = coro_deq (aTHX_ PRIO_MIN);	876	next = coro_deq (aTHX_ PRIO_MIN);
931		877
932	if (!next)	878	if (next)
933	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));	879	break;
		880
		881	UNLOCK;
		882
		883	{
		884	dSP;
		885
		886	ENTER;
		887	SAVETMPS;
		888
		889	PUSHMARK (SP);
		890	PUTBACK;
		891	call_sv (GvSV (coro_idle), G_DISCARD);
		892
		893	FREETMPS;
		894	LEAVE;
		895	}
		896	}
		897
		898	prev = SvRV (current);
		899	SvRV (current) = next;
934		900
935	/* free this only after the transfer */	901	/* free this only after the transfer */
936	coro_mortal = prev;	902	coro_mortal = prev;
937	SV_CORO (prev, "Coro::schedule");
938
939	SvRV (GvSV (coro_current)) = next;
940
941	SV_CORO (next, "Coro::schedule");
942		903
943	UNLOCK;	904	UNLOCK;
944		905
945	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),	906	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), TRANSFER_SAVE_ALL);
946	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
947	}	907	}
		908
		909	static int coro_cede_self;
948		910
949	static void	911	static void
950	api_cede (void)	912	api_cede (void)
951	{	913	{
952	dTHX;	914	dTHX;
		915	SV *current = SvREFCNT_inc (SvRV (GvSV (coro_current)));
953		916
954	LOCK;	917	LOCK;
955	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));	918
		919	if (coro_cede_self)
		920	{
		921	AV *runqueue = coro_ready [PRIO_MAX - PRIO_MIN];
		922	av_unshift (runqueue, 1);
		923	av_store (runqueue, 0, current);
		924	coro_nready++;
		925	coro_cede_self = 0;
		926	}
		927	else
		928	coro_enq (aTHX_ current);
		929
956	UNLOCK;	930	UNLOCK;
957		931
958	api_schedule ();	932	api_schedule ();
959	}	933	}
960		934
961	MODULE = Coro::State PACKAGE = Coro::State	935	MODULE = Coro::State PACKAGE = Coro::State
962		936
963	PROTOTYPES: ENABLE	937	PROTOTYPES: DISABLE
964		938
965	BOOT:	939	BOOT:
966	{ /* {} necessary for stoopid perl-5.6.x */	940	{
967	#ifdef USE_ITHREADS	941	#ifdef USE_ITHREADS
968	MUTEX_INIT (&coro_mutex);	942	MUTEX_INIT (&coro_mutex);
969	#endif	943	#endif
		944	BOOT_PAGESIZE;
970		945
971	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
972	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
973	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	946	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
974		947
975	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	948	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
976	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	949	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
977	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	950	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
978	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
979		951
980	main_mainstack = PL_mainstack;	952	main_mainstack = PL_mainstack;
981		953
982	coroapi.ver = CORO_API_VERSION;	954	coroapi.ver = CORO_API_VERSION;
983	coroapi.transfer = api_transfer;	955	coroapi.transfer = api_transfer;
984	}
985		956
986	Coro::State	957	Newz (0, main_stack, 1, coro_stack);
987	_newprocess(args)	958	main_stack->idle_sp = (void *)-1;
988	SV * args	959
989	PROTOTYPE: $	960	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
		961	}
		962
		963	SV *
		964	new (char *klass, ...)
990	CODE:	965	CODE:
991	Coro__State coro;	966	{
		967	struct coro *coro;
		968	HV *hv;
		969	int i;
992		970
993	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
994	croak ("Coro::State::_newprocess expects an arrayref");
995
996	Newz (0, coro, 1, struct coro);	971	Newz (0, coro, 1, struct coro);
		972	coro->args = newAV ();
997		973
998	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	974	hv = newHV ();
		975	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
		976	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
		977
		978	av_push (coro->args, newSVsv (RETVAL));
		979	for (i = 1; i < items; i++)
		980	av_push (coro->args, newSVsv (ST (i)));
		981
		982	coro->stack = main_stack;
999	/coro->mainstack = 0; //actual work is done inside transfer /	983	/coro->mainstack = 0; //actual work is done inside transfer /
1000	/coro->stack = 0;/	984	/coro->stack = 0;/
1001		985	}
1002	/* same as JMPENV_BOOTSTRAP */
1003	/* we might be able to recycle start_env, but safe is safe */
1004	/Zero(&coro->start_env, 1, JMPENV);/
1005	coro->start_env.je_ret = -1;
1006	coro->start_env.je_mustcatch = TRUE;
1007
1008	RETVAL = coro;
1009	OUTPUT:	986	OUTPUT:
1010	RETVAL	987	RETVAL
1011		988
1012	void	989	void
1013	transfer(prev, next, flags)	990	transfer (prev, next, flags)
1014	SV *prev	991	SV *prev
1015	SV *next	992	SV *next
1016	int flags	993	int flags
1017	PROTOTYPE: @
1018	CODE:	994	CODE:
1019	PUTBACK;	995	PUTBACK;
1020	SV_CORO (next, "Coro::transfer");
1021	SV_CORO (prev, "Coro::transfer");
1022	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);	996	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
1023	SPAGAIN;	997	SPAGAIN;
1024		998
		999	int
		1000	prio (Coro::State coro, int newprio = 0)
		1001	ALIAS:
		1002	nice = 1
		1003	CODE:
		1004	{
		1005	RETVAL = coro->prio;
		1006
		1007	if (items > 1)
		1008	{
		1009	if (ix)
		1010	newprio += coro->prio;
		1011
		1012	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
		1013	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
		1014
		1015	coro->prio = newprio;
		1016	}
		1017	}
		1018
1025	void	1019	void
1026	DESTROY(coro)	1020	_clear_idle_sp (Coro::State self)
1027	Coro::State coro	1021	CODE:
1028	CODE:	1022	self->stack->idle_sp = 0;
1029
1030	if (coro->mainstack && coro->mainstack != main_mainstack)
1031	{
1032	struct coro temp;
1033
1034	PUTBACK;
1035	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
1036	LOAD (aTHX_ coro);
1037	SPAGAIN;
1038
1039	destroy_stacks (aTHX);
1040
1041	LOAD ((&temp)); /* this will get rid of defsv etc.. */
1042	SPAGAIN;
1043
1044	coro->mainstack = 0;
1045	}
1046
1047	deallocate_stack (coro);
1048	SvREFCNT_dec (coro->args);
1049	Safefree (coro);
1050		1023
1051	void	1024	void
		1025	_clone_state_from (SV dst, SV src)
		1026	CODE:
		1027	{
		1028	struct coro *coro_src = SvSTATE (src);
		1029
		1030	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
		1031
		1032	++coro_src->refcnt;
		1033	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;
		1034	}
		1035
		1036	void
1052	_exit(code)	1037	_exit (code)
1053	int code	1038	int code
1054	PROTOTYPE: $	1039	PROTOTYPE: $
1055	CODE:	1040	CODE:
1056	_exit (code);	1041	_exit (code);
1057		1042
1058	MODULE = Coro::State PACKAGE = Coro::Cont	1043	MODULE = Coro::State PACKAGE = Coro::Cont
1059		1044
1060	# this is slightly dirty (should expose a c-level api)
1061
1062	void	1045	void
1063	yield(...)	1046	yield (...)
1064	PROTOTYPE: @	1047	PROTOTYPE: @
1065	CODE:	1048	CODE:
		1049	{
1066	SV *yieldstack;	1050	SV *yieldstack;
1067	SV *sv;	1051	SV *sv;
1068	AV *defav = GvAV (PL_defgv);	1052	AV *defav = GvAV (PL_defgv);
1069	struct coro prev, next;	1053	struct coro prev, next;
1070		1054
…		…
1079	av_fill (defav, items - 1);	1063	av_fill (defav, items - 1);
1080	while (items--)	1064	while (items--)
1081	av_store (defav, items, SvREFCNT_inc (ST(items)));	1065	av_store (defav, items, SvREFCNT_inc (ST(items)));
1082		1066
1083	sv = av_pop ((AV *)SvRV (yieldstack));	1067	sv = av_pop ((AV *)SvRV (yieldstack));
1084	prev = INT2PTR (struct coro , SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0))));	1068	prev = SvSTATE (av_fetch ((AV )SvRV (sv), 0, 0));
1085	next = INT2PTR (struct coro , SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0))));	1069	next = SvSTATE (av_fetch ((AV )SvRV (sv), 1, 0));
1086	SvREFCNT_dec (sv);	1070	SvREFCNT_dec (sv);
1087		1071
1088	transfer (aTHX_ prev, next, 0);	1072	coro_state_transfer (aTHX_ prev, next, 0);
		1073	}
1089		1074
1090	MODULE = Coro::State PACKAGE = Coro	1075	MODULE = Coro::State PACKAGE = Coro
1091		1076
1092	# this is slightly dirty (should expose a c-level api)
1093
1094	BOOT:	1077	BOOT:
1095	{	1078	{
1096	int i;	1079	int i;
		1080
1097	HV *stash = gv_stashpv ("Coro", TRUE);	1081	coro_stash = gv_stashpv ("Coro", TRUE);
1098		1082
1099	newCONSTSUB (stash, "PRIO_MAX", newSViv (PRIO_MAX));	1083	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1100	newCONSTSUB (stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1084	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1101	newCONSTSUB (stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1085	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1102	newCONSTSUB (stash, "PRIO_LOW", newSViv (PRIO_LOW));	1086	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1103	newCONSTSUB (stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1087	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1104	newCONSTSUB (stash, "PRIO_MIN", newSViv (PRIO_MIN));	1088	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1105		1089
1106	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);	1090	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);
1107	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);	1091	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);
1108		1092
1109	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1093	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
…		…
1117	coroapi.ready = api_ready;	1101	coroapi.ready = api_ready;
1118	coroapi.nready = &coro_nready;	1102	coroapi.nready = &coro_nready;
1119	coroapi.current = coro_current;	1103	coroapi.current = coro_current;
1120		1104
1121	GCoroAPI = &coroapi;	1105	GCoroAPI = &coroapi;
1122	sv_setiv(sv, (IV)&coroapi);	1106	sv_setiv (sv, (IV)&coroapi);
1123	SvREADONLY_on(sv);	1107	SvREADONLY_on (sv);
1124	}	1108	}
1125	}	1109	}
1126		1110
1127	#if !PERL_MICRO
1128
1129	void	1111	void
1130	ready(self)	1112	ready (SV *self)
1131	SV * self
1132	PROTOTYPE: $	1113	PROTOTYPE: $
1133	CODE:	1114	CODE:
1134	api_ready (self);	1115	api_ready (self);
1135		1116
1136	#endif
1137
1138	int	1117	int
1139	nready(...)	1118	nready (...)
1140	PROTOTYPE:	1119	PROTOTYPE:
1141	CODE:	1120	CODE:
1142	RETVAL = coro_nready;	1121	RETVAL = coro_nready;
1143	OUTPUT:	1122	OUTPUT:
1144	RETVAL	1123	RETVAL
1145		1124
1146	void	1125	void
1147	schedule(...)	1126	schedule (...)
1148	PROTOTYPE:	1127	PROTOTYPE:
1149	CODE:	1128	CODE:
1150	api_schedule ();	1129	api_schedule ();
1151		1130
1152	void	1131	void
		1132	_set_cede_self ()
		1133	CODE:
		1134	coro_cede_self = 1;
		1135
		1136	void
1153	cede(...)	1137	cede (...)
1154	PROTOTYPE:	1138	PROTOTYPE:
1155	CODE:	1139	CODE:
1156	api_cede ();	1140	api_cede ();
1157		1141
1158	# and these are hacks	1142	MODULE = Coro::State PACKAGE = Coro::AIO
		1143
1159	SV *	1144	SV *
1160	_aio_get_state ()	1145	_get_state ()
1161	CODE:	1146	CODE:
1162	{	1147	{
1163	struct {	1148	struct {
1164	int errorno;	1149	int errorno;
1165	int laststype;	1150	int laststype;
…		…
1176	}	1161	}
1177	OUTPUT:	1162	OUTPUT:
1178	RETVAL	1163	RETVAL
1179		1164
1180	void	1165	void
1181	_aio_set_state (char *data_)	1166	_set_state (char *data_)
1182	PROTOTYPE: $	1167	PROTOTYPE: $
1183	CODE:	1168	CODE:
1184	{	1169	{
1185	struct {	1170	struct {
1186	int errorno;	1171	int errorno;

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Comparing Coro/Coro/State.xs (file contents): Revision 1.76 by root, Thu Oct 26 08:45:56 2006 UTC vs. Revision 1.90 by root, Sat Nov 25 00:56:35 2006 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.76 by root, Thu Oct 26 08:45:56 2006 UTC vs.
Revision 1.90 by root, Sat Nov 25 00:56:35 2006 UTC