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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.108 by root, Mon Nov 27 18:15:47 2006 UTC vs.
Revision 1.123 by root, Mon Dec 4 21:56:00 2006 UTC

…		…
7	#include "patchlevel.h"	7	#include "patchlevel.h"
8		8
9	#if USE_VALGRIND	9	#if USE_VALGRIND
10	# include <valgrind/valgrind.h>	10	# include <valgrind/valgrind.h>
11	#endif	11	#endif
		12
		13	/* the maximum number of idle cctx that will be pooled */
		14	#define MAX_IDLE_CCTX 8
12		15
13	#define PERL_VERSION_ATLEAST(a,b,c) \	16	#define PERL_VERSION_ATLEAST(a,b,c) \
14	(PERL_REVISION > (a) \	17	(PERL_REVISION > (a) \
15	\|\| (PERL_REVISION == (a) \	18	\|\| (PERL_REVISION == (a) \
16	&& (PERL_VERSION > (b) \	19	&& (PERL_VERSION > (b) \
…		…
87		90
88	#define NOINLINE attribute ((noinline))	91	#define NOINLINE attribute ((noinline))
89		92
90	#include "CoroAPI.h"	93	#include "CoroAPI.h"
91		94
92	#define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */
93
94	#ifdef USE_ITHREADS	95	#ifdef USE_ITHREADS
95	static perl_mutex coro_mutex;	96	static perl_mutex coro_mutex;
96	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	97	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
97	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	98	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
98	#else	99	#else
99	# define LOCK (void)0	100	# define LOCK (void)0
100	# define UNLOCK (void)0	101	# define UNLOCK (void)0
101	#endif	102	#endif
102		103
		104	struct io_state
		105	{
		106	int errorno;
		107	I32 laststype;
		108	int laststatval;
		109	Stat_t statcache;
		110	};
		111
103	static struct CoroAPI coroapi;	112	static struct CoroAPI coroapi;
104	static AV main_mainstack; / used to differentiate between $main and others */	113	static AV main_mainstack; / used to differentiate between $main and others */
105	static HV coro_state_stash, coro_stash;	114	static HV coro_state_stash, coro_stash;
106	static SV coro_mortal; / will be freed after next transfer */	115	static SV coro_mortal; / will be freed after next transfer */
107		116
…		…
119	/* cpu state */	128	/* cpu state */
120	void idle_sp; / sp of top-level transfer/schedule/cede call */	129	void idle_sp; / sp of top-level transfer/schedule/cede call */
121	JMPENV *top_env;	130	JMPENV *top_env;
122	coro_context cctx;	131	coro_context cctx;
123		132
		133	int inuse;
		134
124	#if USE_VALGRIND	135	#if USE_VALGRIND
125	int valgrind_id;	136	int valgrind_id;
126	#endif	137	#endif
127	} coro_cctx;	138	} coro_cctx;
		139
		140	enum {
		141	CF_RUNNING = 0x0001, /* coroutine is running */
		142	CF_READY = 0x0002, /* coroutine is ready */
		143	CF_NEW = 0x0004, /* ahs never been switched to */
		144	};
128		145
129	/* this is a structure representing a perl-level coroutine */	146	/* this is a structure representing a perl-level coroutine */
130	struct coro {	147	struct coro {
131	/* the c coroutine allocated to this perl coroutine, if any */	148	/* the c coroutine allocated to this perl coroutine, if any */
132	coro_cctx *cctx;	149	coro_cctx *cctx;
133		150
134	/* data associated with this coroutine (initial args) */	151	/* data associated with this coroutine (initial args) */
135	AV *args;	152	AV *args;
136	int refcnt;	153	int refcnt;
		154	int save; /* CORO_SAVE flags */
		155	int flags; /* CF_ flags */
137		156
138	/* optionally saved, might be zero */	157	/* optionally saved, might be zero */
139	AV *defav;	158	AV defav; / @_ */
140	SV *defsv;	159	SV defsv; / $_ */
141	SV *errsv;	160	SV errsv; / $@ */
		161	SV irssv; / $/ */
		162	SV irssv_sv; / real $/ cache */
142		163
143	#define VAR(name,type) type name;	164	#define VAR(name,type) type name;
144	# include "state.h"	165	# include "state.h"
145	#undef VAR	166	#undef VAR
146		167
…		…
214		235
215	#define PERL_MAGIC_coro PERL_MAGIC_ext	236	#define PERL_MAGIC_coro PERL_MAGIC_ext
216		237
217	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	238	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
218		239
		240	#define CORO_MAGIC(cv) \
		241	SvMAGIC (cv) \
		242	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
		243	? SvMAGIC (cv) \
		244	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
		245	: 0
		246
219	/* the next two functions merely cache the padlists */	247	/* the next two functions merely cache the padlists */
220	static void	248	static void
221	get_padlist (CV *cv)	249	get_padlist (CV *cv)
222	{	250	{
223	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	251	MAGIC *mg = CORO_MAGIC (cv);
		252	AV *av;
224		253
225	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)	254	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
226	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);	255	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
227	else	256	else
228	{	257	{
229	#if 0	258	#if 0
230	/* this is probably cleaner, but also slower? */	259	/* this is probably cleaner, but also slower? */
231	CV *cp = Perl_cv_clone (cv);	260	CV *cp = Perl_cv_clone (cv);
…		…
239	}	268	}
240		269
241	static void	270	static void
242	put_padlist (CV *cv)	271	put_padlist (CV *cv)
243	{	272	{
244	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	273	MAGIC *mg = CORO_MAGIC (cv);
		274	AV *av;
245		275
246	if (!mg)	276	if (!mg)
247	{	277	{
248	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);	278	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
249	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);	279	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
250	mg->mg_virtual = &vtbl_coro;	280	mg->mg_virtual = &vtbl_coro;
251	mg->mg_obj = (SV *)newAV ();	281	mg->mg_obj = (SV *)newAV ();
252	}	282	}
253		283
254	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));	284	av = (AV *)mg->mg_obj;
		285
		286	if (AvFILLp (av) >= AvMAX (av))
		287	av_extend (av, AvMAX (av) + 1);
		288
		289	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
255	}	290	}
256		291
257	#define SB do {	292	#define SB do {
258	#define SE } while (0)	293	#define SE } while (0)
259		294
260	#define LOAD(state) load_state((state));
261	#define SAVE(state,flags) save_state((state),(flags));
262
263	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE	295	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
264		296
265	static void	297	static void
266	load_state(Coro__State c)	298	load_perl (Coro__State c)
267	{	299	{
268	#define VAR(name,type) PL_ ## name = c->name;	300	#define VAR(name,type) PL_ ## name = c->name;
269	# include "state.h"	301	# include "state.h"
270	#undef VAR	302	#undef VAR
271		303
272	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	304	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
273	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	305	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
274	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	306	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
		307	if (c->irssv)
		308	{
		309	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
		310	SvREFCNT_dec (c->irssv);
		311	else
		312	{
		313	REPLACE_SV (PL_rs, c->irssv);
		314	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
		315	sv_setsv (c->irssv_sv, PL_rs);
		316	}
		317	}
275		318
276	{	319	{
277	dSP;	320	dSP;
278	CV *cv;	321	CV *cv;
279		322
280	/* now do the ugly restore mess */	323	/* now do the ugly restore mess */
281	while ((cv = (CV *)POPs))	324	while ((cv = (CV *)POPs))
282	{	325	{
283	AV padlist = (AV )POPs;
284
285	if (padlist)
286	{
287	put_padlist (cv); /* mark this padlist as available */	326	put_padlist (cv); /* mark this padlist as available */
288	CvPADLIST(cv) = padlist;	327	CvDEPTH (cv) = PTR2IV (POPs);
289	}	328	CvPADLIST (cv) = (AV *)POPs;
290
291	++CvDEPTH(cv);
292	}	329	}
293		330
294	PUTBACK;	331	PUTBACK;
295	}	332	}
296	}	333	}
297		334
298	static void	335	static void
299	save_state(Coro__State c, int flags)	336	save_perl (Coro__State c)
300	{	337	{
301	{	338	{
302	dSP;	339	dSP;
303	I32 cxix = cxstack_ix;	340	I32 cxix = cxstack_ix;
304	PERL_CONTEXT *ccstk = cxstack;	341	PERL_CONTEXT *ccstk = cxstack;
…		…
315	{	352	{
316	while (cxix >= 0)	353	while (cxix >= 0)
317	{	354	{
318	PERL_CONTEXT *cx = &ccstk[cxix--];	355	PERL_CONTEXT *cx = &ccstk[cxix--];
319		356
320	if (CxTYPE(cx) == CXt_SUB)	357	if (CxTYPE (cx) == CXt_SUB)
321	{	358	{
322	CV *cv = cx->blk_sub.cv;	359	CV *cv = cx->blk_sub.cv;
		360
323	if (CvDEPTH(cv))	361	if (CvDEPTH (cv))
324	{	362	{
325	EXTEND (SP, CvDEPTH(cv)*2);	363	EXTEND (SP, 3);
326		364
327	while (--CvDEPTH(cv))
328	{
329	/* this tells the restore code to increment CvDEPTH */
330	PUSHs (Nullsv);
331	PUSHs ((SV *)cv);
332	}
333
334	PUSHs ((SV *)CvPADLIST(cv));	365	PUSHs ((SV *)CvPADLIST (cv));
		366	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
335	PUSHs ((SV *)cv);	367	PUSHs ((SV *)cv);
336		368
		369	CvDEPTH (cv) = 0;
337	get_padlist (cv);	370	get_padlist (cv);
338	}	371	}
339	}	372	}
340	#ifdef CXt_FORMAT	373	#ifdef CXt_FORMAT
341	else if (CxTYPE(cx) == CXt_FORMAT)	374	else if (CxTYPE (cx) == CXt_FORMAT)
342	{	375	{
343	/* I never used formats, so how should I know how these are implemented? */	376	/* I never used formats, so how should I know how these are implemented? */
344	/* my bold guess is as a simple, plain sub... */	377	/* my bold guess is as a simple, plain sub... */
345	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	378	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
346	}	379	}
…		…
356	}	389	}
357		390
358	PUTBACK;	391	PUTBACK;
359	}	392	}
360		393
361	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	394	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
362	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	395	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
363	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	396	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
		397	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
364		398
365	#define VAR(name,type)c->name = PL_ ## name;	399	#define VAR(name,type)c->name = PL_ ## name;
366	# include "state.h"	400	# include "state.h"
367	#undef VAR	401	#undef VAR
368	}	402	}
…		…
374	* not usually need a lot of stackspace.	408	* not usually need a lot of stackspace.
375	*/	409	*/
376	static void	410	static void
377	coro_init_stacks ()	411	coro_init_stacks ()
378	{	412	{
379	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	413	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));
380	PL_curstackinfo->si_type = PERLSI_MAIN;	414	PL_curstackinfo->si_type = PERLSI_MAIN;
381	PL_curstack = PL_curstackinfo->si_stack;	415	PL_curstack = PL_curstackinfo->si_stack;
382	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	416	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
383		417
384	PL_stack_base = AvARRAY(PL_curstack);	418	PL_stack_base = AvARRAY(PL_curstack);
385	PL_stack_sp = PL_stack_base;	419	PL_stack_sp = PL_stack_base;
386	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	420	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
387		421
388	New(50,PL_tmps_stack,96,SV*);	422	New(50,PL_tmps_stack,128,SV*);
389	PL_tmps_floor = -1;	423	PL_tmps_floor = -1;
390	PL_tmps_ix = -1;	424	PL_tmps_ix = -1;
391	PL_tmps_max = 96;	425	PL_tmps_max = 128;
392		426
393	New(54,PL_markstack,16,I32);	427	New(54,PL_markstack,32,I32);
394	PL_markstack_ptr = PL_markstack;	428	PL_markstack_ptr = PL_markstack;
395	PL_markstack_max = PL_markstack + 16;	429	PL_markstack_max = PL_markstack + 32;
396		430
397	#ifdef SET_MARK_OFFSET	431	#ifdef SET_MARK_OFFSET
398	SET_MARK_OFFSET;	432	SET_MARK_OFFSET;
399	#endif	433	#endif
400		434
401	New(54,PL_scopestack,16,I32);	435	New(54,PL_scopestack,32,I32);
402	PL_scopestack_ix = 0;	436	PL_scopestack_ix = 0;
403	PL_scopestack_max = 16;	437	PL_scopestack_max = 32;
404		438
405	New(54,PL_savestack,96,ANY);	439	New(54,PL_savestack,64,ANY);
406	PL_savestack_ix = 0;	440	PL_savestack_ix = 0;
407	PL_savestack_max = 96;	441	PL_savestack_max = 64;
408		442
409	#if !PERL_VERSION_ATLEAST (5,9,0)	443	#if !PERL_VERSION_ATLEAST (5,9,0)
410	New(54,PL_retstack,8,OP*);	444	New(54,PL_retstack,16,OP*);
411	PL_retstack_ix = 0;	445	PL_retstack_ix = 0;
412	PL_retstack_max = 8;	446	PL_retstack_max = 16;
413	#endif	447	#endif
414	}	448	}
415		449
416	/*	450	/*
417	* destroy the stacks, the callchain etc...	451	* destroy the stacks, the callchain etc...
…		…
470	* emulate part of the perl startup here.	504	* emulate part of the perl startup here.
471	*/	505	*/
472		506
473	coro_init_stacks ();	507	coro_init_stacks ();
474		508
475	PL_curcop = 0;	509	PL_curcop = &PL_compiling;
476	PL_in_eval = 0;	510	PL_in_eval = EVAL_NULL;
477	PL_curpm = 0;	511	PL_curpm = 0;
		512	PL_localizing = 0;
		513	PL_dirty = 0;
		514	PL_restartop = 0;
478		515
479	{	516	{
480	dSP;	517	dSP;
481	LOGOP myop;	518	LOGOP myop;
482		519
483	/* I have no idea why this is needed, but it is */
484	PUSHMARK (SP);
485
486	SvREFCNT_dec (GvAV (PL_defgv));	520	SvREFCNT_dec (GvAV (PL_defgv));
487	GvAV (PL_defgv) = coro->args; coro->args = 0;	521	GvAV (PL_defgv) = coro->args; coro->args = 0;
488		522
489	Zero (&myop, 1, LOGOP);	523	Zero (&myop, 1, LOGOP);
490	myop.op_next = Nullop;	524	myop.op_next = Nullop;
491	myop.op_flags = OPf_WANT_VOID;	525	myop.op_flags = OPf_WANT_VOID;
492		526
493	PL_op = (OP *)&myop;
494
495	PUSHMARK (SP);	527	PUSHMARK (SP);
496	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	528	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));
497	PUTBACK;	529	PUTBACK;
		530	PL_op = (OP *)&myop;
498	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	531	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
499	SPAGAIN;	532	SPAGAIN;
500
501	ENTER; /* necessary e.g. for dounwind */
502	}	533	}
		534
		535	ENTER; /* necessary e.g. for dounwind */
503	}	536	}
504		537
505	static void	538	static void
506	free_coro_mortal ()	539	free_coro_mortal ()
507	{	540	{
…		…
510	SvREFCNT_dec (coro_mortal);	543	SvREFCNT_dec (coro_mortal);
511	coro_mortal = 0;	544	coro_mortal = 0;
512	}	545	}
513	}	546	}
514		547
		548	/* inject a fake call to Coro::State::_cctx_init into the execution */
515	static void NOINLINE	549	static void NOINLINE
516	prepare_cctx (coro_cctx *cctx)	550	prepare_cctx (coro_cctx *cctx)
517	{	551	{
518	dSP;	552	dSP;
519	LOGOP myop;	553	LOGOP myop;
520		554
521	Zero (&myop, 1, LOGOP);	555	Zero (&myop, 1, LOGOP);
522	myop.op_next = PL_op;	556	myop.op_next = PL_op;
523	myop.op_flags = OPf_WANT_VOID;	557	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
524
525	sv_setiv (get_sv ("Coro::State::_cctx", FALSE), PTR2IV (cctx));
526		558
527	PUSHMARK (SP);	559	PUSHMARK (SP);
		560	EXTEND (SP, 2);
		561	PUSHs (sv_2mortal (newSViv (PTR2IV (cctx))));
528	XPUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));	562	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
529	PUTBACK;	563	PUTBACK;
		564	PL_op = (OP *)&myop;
530	PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX);	565	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
531	SPAGAIN;	566	SPAGAIN;
532	}	567	}
533		568
534	static void	569	static void
535	coro_run (void *arg)	570	coro_run (void *arg)
536	{	571	{
537	/* coro_run is the alternative epilogue of transfer() */	572	/* coro_run is the alternative tail of transfer(), so unlock here. */
538	UNLOCK;	573	UNLOCK;
539		574
540	/*	575	/*
541	* this is a _very_ stripped down perl interpreter ;)	576	* this is a _very_ stripped down perl interpreter ;)
542	*/	577	*/
…		…
544		579
545	/* inject call to cctx_init */	580	/* inject call to cctx_init */
546	prepare_cctx ((coro_cctx *)arg);	581	prepare_cctx ((coro_cctx *)arg);
547		582
548	/* somebody will hit me for both perl_run and PL_restartop */	583	/* somebody will hit me for both perl_run and PL_restartop */
		584	PL_restartop = PL_op;
549	perl_run (PL_curinterp);	585	perl_run (PL_curinterp);
550		586
551	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	587	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);
552	abort ();	588	abort ();
553	}	589	}
…		…
562	New (0, cctx, 1, coro_cctx);	598	New (0, cctx, 1, coro_cctx);
563		599
564	#if HAVE_MMAP	600	#if HAVE_MMAP
565		601
566	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	602	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
567	/* mmap suppsedly does allocate-on-write for us */	603	/* mmap supposedly does allocate-on-write for us */
568	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	604	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
569		605
570	if (cctx->sptr == (void *)-1)	606	if (cctx->sptr == (void *)-1)
571	{	607	{
572	perror ("FATAL: unable to mmap stack for coroutine");	608	perror ("FATAL: unable to mmap stack for coroutine");
…		…
601		637
602	return cctx;	638	return cctx;
603	}	639	}
604		640
605	static void	641	static void
606	cctx_free (coro_cctx *cctx)	642	cctx_destroy (coro_cctx *cctx)
607	{	643	{
608	if (!cctx)	644	if (!cctx)
609	return;	645	return;
610		646
611	--cctx_count;	647	--cctx_count;
…		…
628	{	664	{
629	coro_cctx *cctx;	665	coro_cctx *cctx;
630		666
631	if (cctx_first)	667	if (cctx_first)
632	{	668	{
633	--cctx_idle;
634	cctx = cctx_first;	669	cctx = cctx_first;
635	cctx_first = cctx->next;	670	cctx_first = cctx->next;
		671	--cctx_idle;
636	}	672	}
637	else	673	else
638	{	674	{
639	cctx = cctx_new ();	675	cctx = cctx_new ();
640	PL_op = PL_op->op_next;	676	PL_op = PL_op->op_next;
…		…
644	}	680	}
645		681
646	static void	682	static void
647	cctx_put (coro_cctx *cctx)	683	cctx_put (coro_cctx *cctx)
648	{	684	{
		685	/* free another cctx if overlimit */
		686	if (cctx_idle >= MAX_IDLE_CCTX)
		687	{
		688	coro_cctx *first = cctx_first;
		689	cctx_first = first->next;
		690	--cctx_idle;
		691
		692	assert (!first->inuse);
		693	cctx_destroy (first);
		694	}
		695
649	++cctx_idle;	696	++cctx_idle;
650	cctx->next = cctx_first;	697	cctx->next = cctx_first;
651	cctx_first = cctx;	698	cctx_first = cctx;
652	}	699	}
653		700
654	/* never call directly, always through the coro_state_transfer global variable */	701	/* never call directly, always through the coro_state_transfer global variable */
655	static void NOINLINE	702	static void NOINLINE
656	transfer (struct coro prev, struct coro next, int flags)	703	transfer (struct coro prev, struct coro next)
657	{	704	{
658	dSTACKLEVEL;	705	dSTACKLEVEL;
659		706
660	/* sometimes transfer is only called to set idle_sp */	707	/* sometimes transfer is only called to set idle_sp */
661	if (flags == TRANSFER_SET_STACKLEVEL)	708	if (!next)
662	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	709	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
663	else if (prev != next)	710	else if (prev != next)
664	{	711	{
665	coro_cctx *prev__cctx;	712	coro_cctx *prev__cctx;
666		713
		714	if (prev->flags & CF_NEW)
		715	{
		716	/* create a new empty context */
		717	Newz (0, prev->cctx, 1, coro_cctx);
		718	prev->cctx->inuse = 1;
		719	prev->flags &= ~CF_NEW;
		720	prev->flags \|= CF_RUNNING;
		721	}
		722
		723	/TODO: must not croak here /
		724	if (!prev->flags & CF_RUNNING)
		725	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
		726
		727	if (next->flags & CF_RUNNING)
		728	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		729
		730	prev->flags &= ~CF_RUNNING;
		731	next->flags \|= CF_RUNNING;
		732
667	LOCK;	733	LOCK;
668		734
669	if (next->mainstack)	735	if (next->flags & CF_NEW)
670	{	736	{
671	/* coroutine already started */	737	/* need to start coroutine */
672	SAVE (prev, flags);	738	next->flags &= ~CF_NEW;
673	LOAD (next);	739	/* first get rid of the old state */
		740	save_perl (prev);
		741	/* setup coroutine call */
		742	setup_coro (next);
		743	/* need a new stack */
		744	assert (!next->stack);
674	}	745	}
675	else	746	else
676	{	747	{
677	/* need to start coroutine */	748	/* coroutine already started */
678	/* first get rid of the old state */	749	save_perl (prev);
679	SAVE (prev, -1);	750	load_perl (next);
680	/* setup coroutine call */
681	setup_coro (next);
682	/* need a stack */
683	next->cctx = 0;
684	}	751	}
685
686	if (!prev->cctx)
687	/* create a new empty context */
688	Newz (0, prev->cctx, 1, coro_cctx);
689		752
690	prev__cctx = prev->cctx;	753	prev__cctx = prev->cctx;
691		754
692	/* possibly "free" the cctx */	755	/* possibly "free" the cctx */
693	if (prev__cctx->idle_sp == STACKLEVEL)	756	if (prev__cctx->idle_sp == STACKLEVEL)
694	{	757	{
		758	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
		759	assert (PL_top_env == prev__cctx->top_env);
		760
		761	prev->cctx = 0;
		762
695	cctx_put (prev__cctx);	763	cctx_put (prev__cctx);
696	prev->cctx = 0;	764	prev__cctx->inuse = 0;
697	}	765	}
698		766
699	if (!next->cctx)	767	if (!next->cctx)
		768	{
700	next->cctx = cctx_get ();	769	next->cctx = cctx_get ();
		770	assert (!next->cctx->inuse);
		771	next->cctx->inuse = 1;
		772	}
701		773
702	if (prev__cctx != next->cctx)	774	if (prev__cctx != next->cctx)
703	{	775	{
704	prev__cctx->top_env = PL_top_env;	776	prev__cctx->top_env = PL_top_env;
705	PL_top_env = next->cctx->top_env;	777	PL_top_env = next->cctx->top_env;
…		…
713	}	785	}
714		786
715	struct transfer_args	787	struct transfer_args
716	{	788	{
717	struct coro prev, next;	789	struct coro prev, next;
718	int flags;
719	};	790	};
720		791
721	#define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags)	792	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)
722		793
723	static void	794	static void
724	coro_state_destroy (struct coro *coro)	795	coro_state_destroy (struct coro *coro)
725	{	796	{
726	if (coro->refcnt--)	797	if (coro->refcnt--)
727	return;	798	return;
728		799
729	if (coro->mainstack && coro->mainstack != main_mainstack)	800	if (coro->mainstack && coro->mainstack != main_mainstack)
730	{	801	{
731	struct coro temp;	802	struct coro temp;
		803	Zero (&temp, 1, struct coro);
		804	temp.save = CORO_SAVE_ALL;
732		805
733	SAVE ((&temp), TRANSFER_SAVE_ALL);	806	if (coro->flags & CF_RUNNING)
734	LOAD (coro);	807	croak ("FATAL: tried to destroy currently running coroutine");
		808
		809	save_perl (&temp);
		810	load_perl (coro);
735		811
736	coro_destroy_stacks ();	812	coro_destroy_stacks ();
737		813
738	LOAD ((&temp)); /* this will get rid of defsv etc.. */	814	load_perl (&temp); /* this will get rid of defsv etc.. */
739		815
740	coro->mainstack = 0;	816	coro->mainstack = 0;
741	}	817	}
742		818
743	cctx_free (coro->cctx);	819	cctx_destroy (coro->cctx);
744	SvREFCNT_dec (coro->args);	820	SvREFCNT_dec (coro->args);
745	Safefree (coro);	821	Safefree (coro);
746	}	822	}
747		823
748	static int	824	static int
…		…
798	assert (mg->mg_type == PERL_MAGIC_ext);	874	assert (mg->mg_type == PERL_MAGIC_ext);
799	return (struct coro *)mg->mg_ptr;	875	return (struct coro *)mg->mg_ptr;
800	}	876	}
801		877
802	static void	878	static void
803	prepare_transfer (struct transfer_args ta, SV prev, SV *next, int flags)	879	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)
804	{	880	{
805	ta->prev = SvSTATE (prev);	881	ta->prev = SvSTATE (prev_sv);
806	ta->next = SvSTATE (next);	882	ta->next = SvSTATE (next_sv);
807	ta->flags = flags;
808	}	883	}
809		884
810	static void	885	static void
811	api_transfer (SV prev, SV next, int flags)	886	api_transfer (SV prev_sv, SV next_sv)
812	{	887	{
813	dTHX;
814	struct transfer_args ta;	888	struct transfer_args ta;
815		889
816	prepare_transfer (&ta, prev, next, flags);	890	prepare_transfer (&ta, prev_sv, next_sv);
817	TRANSFER (ta);	891	TRANSFER (ta);
		892	}
		893
		894	static int
		895	api_save (SV *coro_sv, int new_save)
		896	{
		897	struct coro *coro = SvSTATE (coro_sv);
		898	int old_save = coro->save;
		899
		900	if (new_save >= 0)
		901	coro->save = new_save;
		902
		903	return old_save;
818	}	904	}
819		905
820	/ Coro ******************************************************************/	906	/ Coro ******************************************************************/
821		907
822	#define PRIO_MAX 3	908	#define PRIO_MAX 3
…		…
825	#define PRIO_LOW -1	911	#define PRIO_LOW -1
826	#define PRIO_IDLE -3	912	#define PRIO_IDLE -3
827	#define PRIO_MIN -4	913	#define PRIO_MIN -4
828		914
829	/* for Coro.pm */	915	/* for Coro.pm */
830	static GV coro_current, coro_idle;	916	static SV *coro_current;
831	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	917	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
832	static int coro_nready;	918	static int coro_nready;
833		919
834	static void	920	static void
835	coro_enq (SV *sv)	921	coro_enq (SV *coro_sv)
836	{	922	{
837	int prio;
838
839	if (SvTYPE (sv) != SVt_PVHV)
840	croak ("Coro::ready tried to enqueue something that is not a coroutine");
841
842	prio = SvSTATE (sv)->prio;
843
844	av_push (coro_ready [prio - PRIO_MIN], sv);	923	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
845	coro_nready++;	924	coro_nready++;
846	}	925	}
847		926
848	static SV *	927	static SV *
849	coro_deq (int min_prio)	928	coro_deq (int min_prio)
…		…
862	}	941	}
863		942
864	return 0;	943	return 0;
865	}	944	}
866		945
867	static void	946	static int
868	api_ready (SV *coro)	947	api_ready (SV *coro_sv)
869	{	948	{
870	dTHX;	949	struct coro *coro;
871		950
872	if (SvROK (coro))	951	if (SvROK (coro_sv))
873	coro = SvRV (coro);	952	coro_sv = SvRV (coro_sv);
		953
		954	coro = SvSTATE (coro_sv);
		955
		956	if (coro->flags & CF_READY)
		957	return 0;
		958
		959	#if 0 /* this is actually harmless */
		960	if (coro->flags & CF_RUNNING)
		961	croak ("Coro::ready called on currently running coroutine");
		962	#endif
		963
		964	coro->flags \|= CF_READY;
874		965
875	LOCK;	966	LOCK;
876	coro_enq (SvREFCNT_inc (coro));	967	coro_enq (SvREFCNT_inc (coro_sv));
877	UNLOCK;	968	UNLOCK;
		969
		970	return 1;
		971	}
		972
		973	static int
		974	api_is_ready (SV *coro_sv)
		975	{
		976	return !!SvSTATE (coro_sv)->flags & CF_READY;
878	}	977	}
879		978
880	static void	979	static void
881	prepare_schedule (struct transfer_args *ta)	980	prepare_schedule (struct transfer_args *ta)
882	{	981	{
883	SV current, prev, *next;	982	SV prev, next;
884
885	current = GvSV (coro_current);
886		983
887	for (;;)	984	for (;;)
888	{	985	{
889	LOCK;	986	LOCK;
890	next = coro_deq (PRIO_MIN);	987	next = coro_deq (PRIO_MIN);
…		…
899	ENTER;	996	ENTER;
900	SAVETMPS;	997	SAVETMPS;
901		998
902	PUSHMARK (SP);	999	PUSHMARK (SP);
903	PUTBACK;	1000	PUTBACK;
904	call_sv (GvSV (coro_idle), G_DISCARD);	1001	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
905		1002
906	FREETMPS;	1003	FREETMPS;
907	LEAVE;	1004	LEAVE;
908	}	1005	}
909	}	1006	}
910		1007
911	prev = SvRV (current);	1008	prev = SvRV (coro_current);
912	SvRV (current) = next;	1009	SvRV_set (coro_current, next);
913		1010
914	/* free this only after the transfer */	1011	/* free this only after the transfer */
915	LOCK;	1012	LOCK;
916	free_coro_mortal ();	1013	free_coro_mortal ();
917	UNLOCK;	1014	UNLOCK;
918	coro_mortal = prev;	1015	coro_mortal = prev;
919		1016
		1017	assert (!SvROK(prev));//D
		1018	assert (!SvROK(next));//D
		1019
920	ta->prev = SvSTATE (prev);	1020	ta->prev = SvSTATE (prev);
921	ta->next = SvSTATE (next);	1021	ta->next = SvSTATE (next);
922	ta->flags = TRANSFER_SAVE_ALL;	1022
		1023	assert (ta->next->flags & CF_READY);
		1024	ta->next->flags &= ~CF_READY;
923	}	1025	}
924		1026
925	static void	1027	static void
926	prepare_cede (struct transfer_args *ta)	1028	prepare_cede (struct transfer_args *ta)
927	{	1029	{
928	LOCK;	1030	api_ready (coro_current);
929	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));
930	UNLOCK;
931		1031
932	prepare_schedule (ta);	1032	prepare_schedule (ta);
933	}	1033	}
934		1034
935	static void	1035	static void
936	api_schedule (void)	1036	api_schedule (void)
937	{	1037	{
938	dTHX;
939	struct transfer_args ta;	1038	struct transfer_args ta;
940		1039
941	prepare_schedule (&ta);	1040	prepare_schedule (&ta);
942	TRANSFER (ta);	1041	TRANSFER (ta);
943	}	1042	}
944		1043
945	static void	1044	static void
946	api_cede (void)	1045	api_cede (void)
947	{	1046	{
948	dTHX;
949	struct transfer_args ta;	1047	struct transfer_args ta;
950		1048
951	prepare_cede (&ta);	1049	prepare_cede (&ta);
952	TRANSFER (ta);	1050	TRANSFER (ta);
953	}	1051	}
…		…
963	#endif	1061	#endif
964	BOOT_PAGESIZE;	1062	BOOT_PAGESIZE;
965		1063
966	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1064	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
967		1065
968	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	1066	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
969	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	1067	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
970	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	1068	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
		1069	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
		1070	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
971		1071
972	main_mainstack = PL_mainstack;	1072	main_mainstack = PL_mainstack;
973		1073
974	coroapi.ver = CORO_API_VERSION;	1074	coroapi.ver = CORO_API_VERSION;
975	coroapi.transfer = api_transfer;	1075	coroapi.transfer = api_transfer;
…		…
985	HV *hv;	1085	HV *hv;
986	int i;	1086	int i;
987		1087
988	Newz (0, coro, 1, struct coro);	1088	Newz (0, coro, 1, struct coro);
989	coro->args = newAV ();	1089	coro->args = newAV ();
		1090	coro->save = CORO_SAVE_ALL;
		1091	coro->flags = CF_NEW;
990		1092
991	hv = newHV ();	1093	hv = newHV ();
992	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1094	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
993	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1095	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
994		1096
995	for (i = 1; i < items; i++)	1097	for (i = 1; i < items; i++)
996	av_push (coro->args, newSVsv (ST (i)));	1098	av_push (coro->args, newSVsv (ST (i)));
997	}	1099	}
998	OUTPUT:	1100	OUTPUT:
		1101	RETVAL
		1102
		1103	int
		1104	save (SV *coro, int new_save = -1)
		1105	CODE:
		1106	RETVAL = api_save (coro, new_save);
		1107	OUTPUT:
999	RETVAL	1108	RETVAL
1000		1109
1001	void	1110	void
1002	_set_stacklevel (...)	1111	_set_stacklevel (...)
1003	ALIAS:	1112	ALIAS:
1004	Coro::State::transfer = 1	1113	Coro::State::transfer = 1
1005	Coro::schedule = 2	1114	Coro::schedule = 2
1006	Coro::cede = 3	1115	Coro::cede = 3
1007	Coro::Cont::yield = 4
1008	CODE:	1116	CODE:
1009	{	1117	{
1010	struct transfer_args ta;	1118	struct transfer_args ta;
1011		1119
1012	switch (ix)	1120	switch (ix)
1013	{	1121	{
1014	case 0:	1122	case 0:
1015	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1123	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1016	ta.next = 0;	1124	ta.next = 0;
1017	ta.flags = TRANSFER_SET_STACKLEVEL;
1018	break;	1125	break;
1019		1126
1020	case 1:	1127	case 1:
1021	if (items != 3)	1128	if (items != 2)
1022	croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items);	1129	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1023		1130
1024	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));	1131	prepare_transfer (&ta, ST (0), ST (1));
1025	break;	1132	break;
1026		1133
1027	case 2:	1134	case 2:
1028	prepare_schedule (&ta);	1135	prepare_schedule (&ta);
1029	break;	1136	break;
1030		1137
1031	case 3:	1138	case 3:
1032	prepare_cede (&ta);	1139	prepare_cede (&ta);
1033	break;	1140	break;
1034
1035	case 4:
1036	{
1037	SV *yieldstack;
1038	SV *sv;
1039	AV *defav = GvAV (PL_defgv);
1040
1041	yieldstack = *hv_fetch (
1042	(HV *)SvRV (GvSV (coro_current)),
1043	"yieldstack", sizeof ("yieldstack") - 1,
1044	0
1045	);
1046
1047	/* set up @_ -- ugly */
1048	av_clear (defav);
1049	av_fill (defav, items - 1);
1050	while (items--)
1051	av_store (defav, items, SvREFCNT_inc (ST(items)));
1052
1053	sv = av_pop ((AV *)SvRV (yieldstack));
1054	ta.prev = SvSTATE (av_fetch ((AV )SvRV (sv), 0, 0));
1055	ta.next = SvSTATE (av_fetch ((AV )SvRV (sv), 1, 0));
1056	ta.flags = 0;
1057	SvREFCNT_dec (sv);
1058	}
1059	break;
1060
1061	}	1141	}
1062		1142
1063	TRANSFER (ta);	1143	TRANSFER (ta);
1064	}	1144	}
1065		1145
…		…
1109	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1189	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1110	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1190	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1111	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1191	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1112	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1192	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1113		1193
1114	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);	1194	coro_current = get_sv ("Coro::current", FALSE);
1115	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);	1195	SvREADONLY_on (coro_current);
1116		1196
1117	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1197	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1118	coro_ready[i] = newAV ();	1198	coro_ready[i] = newAV ();
1119		1199
1120	{	1200	{
1121	SV *sv = perl_get_sv("Coro::API", 1);	1201	SV *sv = perl_get_sv("Coro::API", 1);
1122		1202
1123	coroapi.schedule = api_schedule;	1203	coroapi.schedule = api_schedule;
		1204	coroapi.save = api_save;
1124	coroapi.cede = api_cede;	1205	coroapi.cede = api_cede;
1125	coroapi.ready = api_ready;	1206	coroapi.ready = api_ready;
		1207	coroapi.is_ready = api_is_ready;
1126	coroapi.nready = &coro_nready;	1208	coroapi.nready = &coro_nready;
1127	coroapi.current = coro_current;	1209	coroapi.current = coro_current;
1128		1210
1129	GCoroAPI = &coroapi;	1211	GCoroAPI = &coroapi;
1130	sv_setiv (sv, (IV)&coroapi);	1212	sv_setiv (sv, (IV)&coroapi);
1131	SvREADONLY_on (sv);	1213	SvREADONLY_on (sv);
1132	}	1214	}
1133	}	1215	}
		1216
		1217	void
		1218	_set_current (SV *current)
		1219	PROTOTYPE: $
		1220	CODE:
		1221	SvREFCNT_dec (SvRV (coro_current));
		1222	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1134		1223
1135	int	1224	int
1136	prio (Coro::State coro, int newprio = 0)	1225	prio (Coro::State coro, int newprio = 0)
1137	ALIAS:	1226	ALIAS:
1138	nice = 1	1227	nice = 1
…		…
1150		1239
1151	coro->prio = newprio;	1240	coro->prio = newprio;
1152	}	1241	}
1153	}	1242	}
1154		1243
1155	void	1244	SV *
1156	ready (SV *self)	1245	ready (SV *self)
1157	PROTOTYPE: $	1246	PROTOTYPE: $
1158	CODE:	1247	CODE:
1159	api_ready (self);	1248	RETVAL = boolSV (api_ready (self));
		1249	OUTPUT:
		1250	RETVAL
		1251
		1252	SV *
		1253	is_ready (SV *self)
		1254	PROTOTYPE: $
		1255	CODE:
		1256	RETVAL = boolSV (api_is_ready (self));
		1257	OUTPUT:
		1258	RETVAL
1160		1259
1161	int	1260	int
1162	nready (...)	1261	nready (...)
1163	PROTOTYPE:	1262	PROTOTYPE:
1164	CODE:	1263	CODE:
…		…
1170		1269
1171	SV *	1270	SV *
1172	_get_state ()	1271	_get_state ()
1173	CODE:	1272	CODE:
1174	{	1273	{
1175	struct {	1274	struct io_state *data;
1176	int errorno;
1177	int laststype;
1178	int laststatval;
1179	Stat_t statcache;
1180	} data;
1181		1275
		1276	RETVAL = newSV (sizeof (struct io_state));
		1277	data = (struct io_state *)SvPVX (RETVAL);
		1278	SvCUR_set (RETVAL, sizeof (struct io_state));
		1279	SvPOK_only (RETVAL);
		1280
1182	data.errorno = errno;	1281	data->errorno = errno;
1183	data.laststype = PL_laststype;	1282	data->laststype = PL_laststype;
1184	data.laststatval = PL_laststatval;	1283	data->laststatval = PL_laststatval;
1185	data.statcache = PL_statcache;	1284	data->statcache = PL_statcache;
1186
1187	RETVAL = newSVpvn ((char *)&data, sizeof data);
1188	}	1285	}
1189	OUTPUT:	1286	OUTPUT:
1190	RETVAL	1287	RETVAL
1191		1288
1192	void	1289	void
1193	_set_state (char *data_)	1290	_set_state (char *data_)
1194	PROTOTYPE: $	1291	PROTOTYPE: $
1195	CODE:	1292	CODE:
1196	{	1293	{
1197	struct {	1294	struct io_state data = (void )data_;
1198	int errorno;
1199	int laststype;
1200	int laststatval;
1201	Stat_t statcache;
1202	} data = (void )data_;
1203		1295
1204	errno = data->errorno;	1296	errno = data->errorno;
1205	PL_laststype = data->laststype;	1297	PL_laststype = data->laststype;
1206	PL_laststatval = data->laststatval;	1298	PL_laststatval = data->laststatval;
1207	PL_statcache = data->statcache;	1299	PL_statcache = data->statcache;
1208	}	1300	}
		1301

Diff Legend

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

Comparing Coro/Coro/State.xs (file contents): Revision 1.108 by root, Mon Nov 27 18:15:47 2006 UTC vs. Revision 1.123 by root, Mon Dec 4 21:56:00 2006 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.108 by root, Mon Nov 27 18:15:47 2006 UTC vs.
Revision 1.123 by root, Mon Dec 4 21:56:00 2006 UTC