[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 1.125 by root, Mon Dec 11 20:54:45 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) \
…		…
35	# ifndef IS_PADCONST	38	# ifndef IS_PADCONST
36	# define IS_PADCONST(v) 0	39	# define IS_PADCONST(v) 0
37	# endif	40	# endif
38	#endif	41	#endif
39		42
		43	/* 5.8.7 */
		44	#ifndef SvRV_set
		45	# define SvRV_set(s,v) SvRV(s) = (v)
		46	#endif
		47
40	#include <stdio.h>	48	#include <stdio.h>
41	#include <errno.h>	49	#include <errno.h>
		50	#include <assert.h>
42		51
43	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	52	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
44	# undef STACKGUARD	53	# undef STACKGUARD
45	#endif	54	#endif
46		55
…		…
87		96
88	#define NOINLINE attribute ((noinline))	97	#define NOINLINE attribute ((noinline))
89		98
90	#include "CoroAPI.h"	99	#include "CoroAPI.h"
91		100
92	#define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */
93
94	#ifdef USE_ITHREADS	101	#ifdef USE_ITHREADS
95	static perl_mutex coro_mutex;	102	static perl_mutex coro_mutex;
96	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	103	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
97	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	104	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
98	#else	105	#else
99	# define LOCK (void)0	106	# define LOCK (void)0
100	# define UNLOCK (void)0	107	# define UNLOCK (void)0
101	#endif	108	#endif
102		109
		110	struct io_state
		111	{
		112	int errorno;
		113	I32 laststype;
		114	int laststatval;
		115	Stat_t statcache;
		116	};
		117
103	static struct CoroAPI coroapi;	118	static struct CoroAPI coroapi;
104	static AV main_mainstack; / used to differentiate between $main and others */	119	static AV main_mainstack; / used to differentiate between $main and others */
105	static HV coro_state_stash, coro_stash;	120	static HV coro_state_stash, coro_stash;
106	static SV coro_mortal; / will be freed after next transfer */	121	static SV coro_mortal; / will be freed after next transfer */
107		122
…		…
119	/* cpu state */	134	/* cpu state */
120	void idle_sp; / sp of top-level transfer/schedule/cede call */	135	void idle_sp; / sp of top-level transfer/schedule/cede call */
121	JMPENV *top_env;	136	JMPENV *top_env;
122	coro_context cctx;	137	coro_context cctx;
123		138
		139	int inuse;
		140
124	#if USE_VALGRIND	141	#if USE_VALGRIND
125	int valgrind_id;	142	int valgrind_id;
126	#endif	143	#endif
127	} coro_cctx;	144	} coro_cctx;
		145
		146	enum {
		147	CF_RUNNING = 0x0001, /* coroutine is running */
		148	CF_READY = 0x0002, /* coroutine is ready */
		149	CF_NEW = 0x0004, /* ahs never been switched to */
		150	};
128		151
129	/* this is a structure representing a perl-level coroutine */	152	/* this is a structure representing a perl-level coroutine */
130	struct coro {	153	struct coro {
131	/* the c coroutine allocated to this perl coroutine, if any */	154	/* the c coroutine allocated to this perl coroutine, if any */
132	coro_cctx *cctx;	155	coro_cctx *cctx;
133		156
134	/* data associated with this coroutine (initial args) */	157	/* data associated with this coroutine (initial args) */
135	AV *args;	158	AV *args;
136	int refcnt;	159	int refcnt;
		160	int save; /* CORO_SAVE flags */
		161	int flags; /* CF_ flags */
137		162
138	/* optionally saved, might be zero */	163	/* optionally saved, might be zero */
139	AV *defav;	164	AV defav; / @_ */
140	SV *defsv;	165	SV defsv; / $_ */
141	SV *errsv;	166	SV errsv; / $@ */
		167	SV irssv; / $/ */
		168	SV irssv_sv; / real $/ cache */
142		169
143	#define VAR(name,type) type name;	170	#define VAR(name,type) type name;
144	# include "state.h"	171	# include "state.h"
145	#undef VAR	172	#undef VAR
146		173
…		…
214		241
215	#define PERL_MAGIC_coro PERL_MAGIC_ext	242	#define PERL_MAGIC_coro PERL_MAGIC_ext
216		243
217	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	244	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
218		245
		246	#define CORO_MAGIC(cv) \
		247	SvMAGIC (cv) \
		248	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
		249	? SvMAGIC (cv) \
		250	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
		251	: 0
		252
219	/* the next two functions merely cache the padlists */	253	/* the next two functions merely cache the padlists */
220	static void	254	static void
221	get_padlist (CV *cv)	255	get_padlist (CV *cv)
222	{	256	{
223	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	257	MAGIC *mg = CORO_MAGIC (cv);
		258	AV *av;
224		259
225	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)	260	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
226	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);	261	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
227	else	262	else
228	{	263	{
229	#if 0	264	#if 0
230	/* this is probably cleaner, but also slower? */	265	/* this is probably cleaner, but also slower? */
231	CV *cp = Perl_cv_clone (cv);	266	CV *cp = Perl_cv_clone (cv);
…		…
239	}	274	}
240		275
241	static void	276	static void
242	put_padlist (CV *cv)	277	put_padlist (CV *cv)
243	{	278	{
244	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	279	MAGIC *mg = CORO_MAGIC (cv);
		280	AV *av;
245		281
246	if (!mg)	282	if (!mg)
247	{	283	{
248	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);	284	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
249	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);	285	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
250	mg->mg_virtual = &vtbl_coro;	286	mg->mg_virtual = &vtbl_coro;
251	mg->mg_obj = (SV *)newAV ();	287	mg->mg_obj = (SV *)newAV ();
252	}	288	}
253		289
254	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));	290	av = (AV *)mg->mg_obj;
		291
		292	if (AvFILLp (av) >= AvMAX (av))
		293	av_extend (av, AvMAX (av) + 1);
		294
		295	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
255	}	296	}
256		297
257	#define SB do {	298	#define SB do {
258	#define SE } while (0)	299	#define SE } while (0)
259		300
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	301	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
264		302
265	static void	303	static void
266	load_state(Coro__State c)	304	load_perl (Coro__State c)
267	{	305	{
268	#define VAR(name,type) PL_ ## name = c->name;	306	#define VAR(name,type) PL_ ## name = c->name;
269	# include "state.h"	307	# include "state.h"
270	#undef VAR	308	#undef VAR
271		309
272	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	310	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
273	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	311	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
274	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	312	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
		313	if (c->irssv)
		314	{
		315	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
		316	SvREFCNT_dec (c->irssv);
		317	else
		318	{
		319	REPLACE_SV (PL_rs, c->irssv);
		320	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
		321	sv_setsv (c->irssv_sv, PL_rs);
		322	}
		323	}
275		324
276	{	325	{
277	dSP;	326	dSP;
278	CV *cv;	327	CV *cv;
279		328
280	/* now do the ugly restore mess */	329	/* now do the ugly restore mess */
281	while ((cv = (CV *)POPs))	330	while ((cv = (CV *)POPs))
282	{	331	{
283	AV padlist = (AV )POPs;
284
285	if (padlist)
286	{
287	put_padlist (cv); /* mark this padlist as available */	332	put_padlist (cv); /* mark this padlist as available */
288	CvPADLIST(cv) = padlist;	333	CvDEPTH (cv) = PTR2IV (POPs);
289	}	334	CvPADLIST (cv) = (AV *)POPs;
290
291	++CvDEPTH(cv);
292	}	335	}
293		336
294	PUTBACK;	337	PUTBACK;
295	}	338	}
296	}	339	}
297		340
298	static void	341	static void
299	save_state(Coro__State c, int flags)	342	save_perl (Coro__State c)
300	{	343	{
301	{	344	{
302	dSP;	345	dSP;
303	I32 cxix = cxstack_ix;	346	I32 cxix = cxstack_ix;
304	PERL_CONTEXT *ccstk = cxstack;	347	PERL_CONTEXT *ccstk = cxstack;
…		…
315	{	358	{
316	while (cxix >= 0)	359	while (cxix >= 0)
317	{	360	{
318	PERL_CONTEXT *cx = &ccstk[cxix--];	361	PERL_CONTEXT *cx = &ccstk[cxix--];
319		362
320	if (CxTYPE(cx) == CXt_SUB)	363	if (CxTYPE (cx) == CXt_SUB)
321	{	364	{
322	CV *cv = cx->blk_sub.cv;	365	CV *cv = cx->blk_sub.cv;
		366
323	if (CvDEPTH(cv))	367	if (CvDEPTH (cv))
324	{	368	{
325	EXTEND (SP, CvDEPTH(cv)*2);	369	EXTEND (SP, 3);
326		370
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));	371	PUSHs ((SV *)CvPADLIST (cv));
		372	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
335	PUSHs ((SV *)cv);	373	PUSHs ((SV *)cv);
336		374
		375	CvDEPTH (cv) = 0;
337	get_padlist (cv);	376	get_padlist (cv);
338	}	377	}
339	}	378	}
340	#ifdef CXt_FORMAT	379	#ifdef CXt_FORMAT
341	else if (CxTYPE(cx) == CXt_FORMAT)	380	else if (CxTYPE (cx) == CXt_FORMAT)
342	{	381	{
343	/* I never used formats, so how should I know how these are implemented? */	382	/* I never used formats, so how should I know how these are implemented? */
344	/* my bold guess is as a simple, plain sub... */	383	/* my bold guess is as a simple, plain sub... */
345	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	384	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
346	}	385	}
…		…
356	}	395	}
357		396
358	PUTBACK;	397	PUTBACK;
359	}	398	}
360		399
361	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	400	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;	401	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
363	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	402	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
		403	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
364		404
365	#define VAR(name,type)c->name = PL_ ## name;	405	#define VAR(name,type)c->name = PL_ ## name;
366	# include "state.h"	406	# include "state.h"
367	#undef VAR	407	#undef VAR
368	}	408	}
…		…
374	* not usually need a lot of stackspace.	414	* not usually need a lot of stackspace.
375	*/	415	*/
376	static void	416	static void
377	coro_init_stacks ()	417	coro_init_stacks ()
378	{	418	{
379	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	419	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));
380	PL_curstackinfo->si_type = PERLSI_MAIN;	420	PL_curstackinfo->si_type = PERLSI_MAIN;
381	PL_curstack = PL_curstackinfo->si_stack;	421	PL_curstack = PL_curstackinfo->si_stack;
382	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	422	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
383		423
384	PL_stack_base = AvARRAY(PL_curstack);	424	PL_stack_base = AvARRAY(PL_curstack);
385	PL_stack_sp = PL_stack_base;	425	PL_stack_sp = PL_stack_base;
386	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	426	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
387		427
388	New(50,PL_tmps_stack,96,SV*);	428	New(50,PL_tmps_stack,128,SV*);
389	PL_tmps_floor = -1;	429	PL_tmps_floor = -1;
390	PL_tmps_ix = -1;	430	PL_tmps_ix = -1;
391	PL_tmps_max = 96;	431	PL_tmps_max = 128;
392		432
393	New(54,PL_markstack,16,I32);	433	New(54,PL_markstack,32,I32);
394	PL_markstack_ptr = PL_markstack;	434	PL_markstack_ptr = PL_markstack;
395	PL_markstack_max = PL_markstack + 16;	435	PL_markstack_max = PL_markstack + 32;
396		436
397	#ifdef SET_MARK_OFFSET	437	#ifdef SET_MARK_OFFSET
398	SET_MARK_OFFSET;	438	SET_MARK_OFFSET;
399	#endif	439	#endif
400		440
401	New(54,PL_scopestack,16,I32);	441	New(54,PL_scopestack,32,I32);
402	PL_scopestack_ix = 0;	442	PL_scopestack_ix = 0;
403	PL_scopestack_max = 16;	443	PL_scopestack_max = 32;
404		444
405	New(54,PL_savestack,96,ANY);	445	New(54,PL_savestack,64,ANY);
406	PL_savestack_ix = 0;	446	PL_savestack_ix = 0;
407	PL_savestack_max = 96;	447	PL_savestack_max = 64;
408		448
409	#if !PERL_VERSION_ATLEAST (5,9,0)	449	#if !PERL_VERSION_ATLEAST (5,9,0)
410	New(54,PL_retstack,8,OP*);	450	New(54,PL_retstack,16,OP*);
411	PL_retstack_ix = 0;	451	PL_retstack_ix = 0;
412	PL_retstack_max = 8;	452	PL_retstack_max = 16;
413	#endif	453	#endif
414	}	454	}
415		455
416	/*	456	/*
417	* destroy the stacks, the callchain etc...	457	* destroy the stacks, the callchain etc...
…		…
470	* emulate part of the perl startup here.	510	* emulate part of the perl startup here.
471	*/	511	*/
472		512
473	coro_init_stacks ();	513	coro_init_stacks ();
474		514
475	PL_curcop = 0;	515	PL_curcop = &PL_compiling;
476	PL_in_eval = 0;	516	PL_in_eval = EVAL_NULL;
477	PL_curpm = 0;	517	PL_curpm = 0;
		518	PL_localizing = 0;
		519	PL_dirty = 0;
		520	PL_restartop = 0;
478		521
479	{	522	{
480	dSP;	523	dSP;
481	LOGOP myop;	524	LOGOP myop;
482		525
483	/* I have no idea why this is needed, but it is */
484	PUSHMARK (SP);
485
486	SvREFCNT_dec (GvAV (PL_defgv));	526	SvREFCNT_dec (GvAV (PL_defgv));
487	GvAV (PL_defgv) = coro->args; coro->args = 0;	527	GvAV (PL_defgv) = coro->args; coro->args = 0;
488		528
489	Zero (&myop, 1, LOGOP);	529	Zero (&myop, 1, LOGOP);
490	myop.op_next = Nullop;	530	myop.op_next = Nullop;
491	myop.op_flags = OPf_WANT_VOID;	531	myop.op_flags = OPf_WANT_VOID;
492		532
493	PL_op = (OP *)&myop;
494
495	PUSHMARK (SP);	533	PUSHMARK (SP);
496	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	534	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));
497	PUTBACK;	535	PUTBACK;
		536	PL_op = (OP *)&myop;
498	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	537	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
499	SPAGAIN;	538	SPAGAIN;
500
501	ENTER; /* necessary e.g. for dounwind */
502	}	539	}
		540
		541	ENTER; /* necessary e.g. for dounwind */
503	}	542	}
504		543
505	static void	544	static void
506	free_coro_mortal ()	545	free_coro_mortal ()
507	{	546	{
…		…
510	SvREFCNT_dec (coro_mortal);	549	SvREFCNT_dec (coro_mortal);
511	coro_mortal = 0;	550	coro_mortal = 0;
512	}	551	}
513	}	552	}
514		553
		554	/* inject a fake call to Coro::State::_cctx_init into the execution */
515	static void NOINLINE	555	static void NOINLINE
516	prepare_cctx (coro_cctx *cctx)	556	prepare_cctx (coro_cctx *cctx)
517	{	557	{
518	dSP;	558	dSP;
519	LOGOP myop;	559	LOGOP myop;
520		560
521	Zero (&myop, 1, LOGOP);	561	Zero (&myop, 1, LOGOP);
522	myop.op_next = PL_op;	562	myop.op_next = PL_op;
523	myop.op_flags = OPf_WANT_VOID;	563	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
524
525	sv_setiv (get_sv ("Coro::State::_cctx", FALSE), PTR2IV (cctx));
526		564
527	PUSHMARK (SP);	565	PUSHMARK (SP);
		566	EXTEND (SP, 2);
		567	PUSHs (sv_2mortal (newSViv (PTR2IV (cctx))));
528	XPUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));	568	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
529	PUTBACK;	569	PUTBACK;
		570	PL_op = (OP *)&myop;
530	PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX);	571	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
531	SPAGAIN;	572	SPAGAIN;
532	}	573	}
533		574
534	static void	575	static void
535	coro_run (void *arg)	576	coro_run (void *arg)
536	{	577	{
537	/* coro_run is the alternative epilogue of transfer() */	578	/* coro_run is the alternative tail of transfer(), so unlock here. */
538	UNLOCK;	579	UNLOCK;
539		580
540	/*	581	/*
541	* this is a _very_ stripped down perl interpreter ;)	582	* this is a _very_ stripped down perl interpreter ;)
542	*/	583	*/
…		…
544		585
545	/* inject call to cctx_init */	586	/* inject call to cctx_init */
546	prepare_cctx ((coro_cctx *)arg);	587	prepare_cctx ((coro_cctx *)arg);
547		588
548	/* somebody will hit me for both perl_run and PL_restartop */	589	/* somebody will hit me for both perl_run and PL_restartop */
		590	PL_restartop = PL_op;
549	perl_run (PL_curinterp);	591	perl_run (PL_curinterp);
550		592
551	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	593	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);
552	abort ();	594	abort ();
553	}	595	}
…		…
557	{	599	{
558	coro_cctx *cctx;	600	coro_cctx *cctx;
559		601
560	++cctx_count;	602	++cctx_count;
561		603
562	New (0, cctx, 1, coro_cctx);	604	Newz (0, cctx, 1, coro_cctx);
563		605
564	#if HAVE_MMAP	606	#if HAVE_MMAP
565		607
566	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	608	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
567	/* mmap suppsedly does allocate-on-write for us */	609	/* 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);	610	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
569		611
570	if (cctx->sptr == (void *)-1)	612	if (cctx->sptr == (void *)-1)
571	{	613	{
572	perror ("FATAL: unable to mmap stack for coroutine");	614	perror ("FATAL: unable to mmap stack for coroutine");
…		…
601		643
602	return cctx;	644	return cctx;
603	}	645	}
604		646
605	static void	647	static void
606	cctx_free (coro_cctx *cctx)	648	cctx_destroy (coro_cctx *cctx)
607	{	649	{
608	if (!cctx)	650	if (!cctx)
609	return;	651	return;
610		652
611	--cctx_count;	653	--cctx_count;
…		…
628	{	670	{
629	coro_cctx *cctx;	671	coro_cctx *cctx;
630		672
631	if (cctx_first)	673	if (cctx_first)
632	{	674	{
633	--cctx_idle;
634	cctx = cctx_first;	675	cctx = cctx_first;
635	cctx_first = cctx->next;	676	cctx_first = cctx->next;
		677	--cctx_idle;
636	}	678	}
637	else	679	else
638	{	680	{
639	cctx = cctx_new ();	681	cctx = cctx_new ();
640	PL_op = PL_op->op_next;	682	PL_op = PL_op->op_next;
…		…
644	}	686	}
645		687
646	static void	688	static void
647	cctx_put (coro_cctx *cctx)	689	cctx_put (coro_cctx *cctx)
648	{	690	{
		691	/* free another cctx if overlimit */
		692	if (cctx_idle >= MAX_IDLE_CCTX)
		693	{
		694	coro_cctx *first = cctx_first;
		695	cctx_first = first->next;
		696	--cctx_idle;
		697
		698	assert (!first->inuse);
		699	cctx_destroy (first);
		700	}
		701
649	++cctx_idle;	702	++cctx_idle;
650	cctx->next = cctx_first;	703	cctx->next = cctx_first;
651	cctx_first = cctx;	704	cctx_first = cctx;
652	}	705	}
653		706
654	/* never call directly, always through the coro_state_transfer global variable */	707	/* never call directly, always through the coro_state_transfer global variable */
655	static void NOINLINE	708	static void NOINLINE
656	transfer (struct coro prev, struct coro next, int flags)	709	transfer (struct coro prev, struct coro next)
657	{	710	{
658	dSTACKLEVEL;	711	dSTACKLEVEL;
659		712
660	/* sometimes transfer is only called to set idle_sp */	713	/* sometimes transfer is only called to set idle_sp */
661	if (flags == TRANSFER_SET_STACKLEVEL)	714	if (!next)
		715	{
662	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	716	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
		717	assert (((coro_cctx )prev)->top_env = PL_top_env); / just for the side effetc when assert is enabled */
		718	}
663	else if (prev != next)	719	else if (prev != next)
664	{	720	{
665	coro_cctx *prev__cctx;	721	coro_cctx *prev__cctx;
666		722
		723	if (prev->flags & CF_NEW)
		724	{
		725	/* create a new empty context */
		726	Newz (0, prev->cctx, 1, coro_cctx);
		727	prev->cctx->inuse = 1;
		728	prev->flags &= ~CF_NEW;
		729	prev->flags \|= CF_RUNNING;
		730	}
		731
		732	/TODO: must not croak here /
		733	if (!prev->flags & CF_RUNNING)
		734	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
		735
		736	if (next->flags & CF_RUNNING)
		737	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		738
		739	prev->flags &= ~CF_RUNNING;
		740	next->flags \|= CF_RUNNING;
		741
667	LOCK;	742	LOCK;
668		743
669	if (next->mainstack)	744	if (next->flags & CF_NEW)
670	{	745	{
671	/* coroutine already started */	746	/* need to start coroutine */
672	SAVE (prev, flags);	747	next->flags &= ~CF_NEW;
673	LOAD (next);	748	/* first get rid of the old state */
		749	save_perl (prev);
		750	/* setup coroutine call */
		751	setup_coro (next);
		752	/* need a new stack */
		753	assert (!next->cctx);
674	}	754	}
675	else	755	else
676	{	756	{
677	/* need to start coroutine */	757	/* coroutine already started */
678	/* first get rid of the old state */	758	save_perl (prev);
679	SAVE (prev, -1);	759	load_perl (next);
680	/* setup coroutine call */
681	setup_coro (next);
682	/* need a stack */
683	next->cctx = 0;
684	}	760	}
685
686	if (!prev->cctx)
687	/* create a new empty context */
688	Newz (0, prev->cctx, 1, coro_cctx);
689		761
690	prev__cctx = prev->cctx;	762	prev__cctx = prev->cctx;
691		763
692	/* possibly "free" the cctx */	764	/* possibly "free" the cctx */
693	if (prev__cctx->idle_sp == STACKLEVEL)	765	if (prev__cctx->idle_sp == STACKLEVEL)
694	{	766	{
		767	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
		768	assert (PL_top_env == prev__cctx->top_env);
		769
		770	prev->cctx = 0;
		771
695	cctx_put (prev__cctx);	772	cctx_put (prev__cctx);
696	prev->cctx = 0;	773	prev__cctx->inuse = 0;
697	}	774	}
698		775
699	if (!next->cctx)	776	if (!next->cctx)
		777	{
700	next->cctx = cctx_get ();	778	next->cctx = cctx_get ();
		779	assert (!next->cctx->inuse);
		780	next->cctx->inuse = 1;
		781	}
701		782
702	if (prev__cctx != next->cctx)	783	if (prev__cctx != next->cctx)
703	{	784	{
704	prev__cctx->top_env = PL_top_env;	785	prev__cctx->top_env = PL_top_env;
705	PL_top_env = next->cctx->top_env;	786	PL_top_env = next->cctx->top_env;
…		…
713	}	794	}
714		795
715	struct transfer_args	796	struct transfer_args
716	{	797	{
717	struct coro prev, next;	798	struct coro prev, next;
718	int flags;
719	};	799	};
720		800
721	#define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags)	801	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)
722		802
723	static void	803	static void
724	coro_state_destroy (struct coro *coro)	804	coro_state_destroy (struct coro *coro)
725	{	805	{
726	if (coro->refcnt--)	806	if (coro->refcnt--)
727	return;	807	return;
728		808
729	if (coro->mainstack && coro->mainstack != main_mainstack)	809	if (coro->mainstack && coro->mainstack != main_mainstack)
730	{	810	{
731	struct coro temp;	811	struct coro temp;
		812	Zero (&temp, 1, struct coro);
		813	temp.save = CORO_SAVE_ALL;
732		814
733	SAVE ((&temp), TRANSFER_SAVE_ALL);	815	if (coro->flags & CF_RUNNING)
734	LOAD (coro);	816	croak ("FATAL: tried to destroy currently running coroutine");
		817
		818	save_perl (&temp);
		819	load_perl (coro);
735		820
736	coro_destroy_stacks ();	821	coro_destroy_stacks ();
737		822
738	LOAD ((&temp)); /* this will get rid of defsv etc.. */	823	load_perl (&temp); /* this will get rid of defsv etc.. */
739		824
740	coro->mainstack = 0;	825	coro->mainstack = 0;
741	}	826	}
742		827
743	cctx_free (coro->cctx);	828	cctx_destroy (coro->cctx);
744	SvREFCNT_dec (coro->args);	829	SvREFCNT_dec (coro->args);
745	Safefree (coro);	830	Safefree (coro);
746	}	831	}
747		832
748	static int	833	static int
…		…
798	assert (mg->mg_type == PERL_MAGIC_ext);	883	assert (mg->mg_type == PERL_MAGIC_ext);
799	return (struct coro *)mg->mg_ptr;	884	return (struct coro *)mg->mg_ptr;
800	}	885	}
801		886
802	static void	887	static void
803	prepare_transfer (struct transfer_args ta, SV prev, SV *next, int flags)	888	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)
804	{	889	{
805	ta->prev = SvSTATE (prev);	890	ta->prev = SvSTATE (prev_sv);
806	ta->next = SvSTATE (next);	891	ta->next = SvSTATE (next_sv);
807	ta->flags = flags;
808	}	892	}
809		893
810	static void	894	static void
811	api_transfer (SV prev, SV next, int flags)	895	api_transfer (SV prev_sv, SV next_sv)
812	{	896	{
813	dTHX;
814	struct transfer_args ta;	897	struct transfer_args ta;
815		898
816	prepare_transfer (&ta, prev, next, flags);	899	prepare_transfer (&ta, prev_sv, next_sv);
817	TRANSFER (ta);	900	TRANSFER (ta);
		901	}
		902
		903	static int
		904	api_save (SV *coro_sv, int new_save)
		905	{
		906	struct coro *coro = SvSTATE (coro_sv);
		907	int old_save = coro->save;
		908
		909	if (new_save >= 0)
		910	coro->save = new_save;
		911
		912	return old_save;
818	}	913	}
819		914
820	/ Coro ******************************************************************/	915	/ Coro ******************************************************************/
821		916
822	#define PRIO_MAX 3	917	#define PRIO_MAX 3
…		…
825	#define PRIO_LOW -1	920	#define PRIO_LOW -1
826	#define PRIO_IDLE -3	921	#define PRIO_IDLE -3
827	#define PRIO_MIN -4	922	#define PRIO_MIN -4
828		923
829	/* for Coro.pm */	924	/* for Coro.pm */
830	static GV coro_current, coro_idle;	925	static SV *coro_current;
831	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	926	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
832	static int coro_nready;	927	static int coro_nready;
833		928
834	static void	929	static void
835	coro_enq (SV *sv)	930	coro_enq (SV *coro_sv)
836	{	931	{
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);	932	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
845	coro_nready++;	933	coro_nready++;
846	}	934	}
847		935
848	static SV *	936	static SV *
849	coro_deq (int min_prio)	937	coro_deq (int min_prio)
…		…
862	}	950	}
863		951
864	return 0;	952	return 0;
865	}	953	}
866		954
867	static void	955	static int
868	api_ready (SV *coro)	956	api_ready (SV *coro_sv)
869	{	957	{
870	dTHX;	958	struct coro *coro;
871		959
872	if (SvROK (coro))	960	if (SvROK (coro_sv))
873	coro = SvRV (coro);	961	coro_sv = SvRV (coro_sv);
		962
		963	coro = SvSTATE (coro_sv);
		964
		965	if (coro->flags & CF_READY)
		966	return 0;
		967
		968	#if 0 /* this is actually harmless */
		969	if (coro->flags & CF_RUNNING)
		970	croak ("Coro::ready called on currently running coroutine");
		971	#endif
		972
		973	coro->flags \|= CF_READY;
874		974
875	LOCK;	975	LOCK;
876	coro_enq (SvREFCNT_inc (coro));	976	coro_enq (SvREFCNT_inc (coro_sv));
877	UNLOCK;	977	UNLOCK;
		978
		979	return 1;
		980	}
		981
		982	static int
		983	api_is_ready (SV *coro_sv)
		984	{
		985	return !!SvSTATE (coro_sv)->flags & CF_READY;
878	}	986	}
879		987
880	static void	988	static void
881	prepare_schedule (struct transfer_args *ta)	989	prepare_schedule (struct transfer_args *ta)
882	{	990	{
883	SV current, prev, *next;	991	SV prev, next;
884
885	current = GvSV (coro_current);
886		992
887	for (;;)	993	for (;;)
888	{	994	{
889	LOCK;	995	LOCK;
890	next = coro_deq (PRIO_MIN);	996	next = coro_deq (PRIO_MIN);
…		…
899	ENTER;	1005	ENTER;
900	SAVETMPS;	1006	SAVETMPS;
901		1007
902	PUSHMARK (SP);	1008	PUSHMARK (SP);
903	PUTBACK;	1009	PUTBACK;
904	call_sv (GvSV (coro_idle), G_DISCARD);	1010	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
905		1011
906	FREETMPS;	1012	FREETMPS;
907	LEAVE;	1013	LEAVE;
908	}	1014	}
909	}	1015	}
910		1016
911	prev = SvRV (current);	1017	prev = SvRV (coro_current);
912	SvRV (current) = next;	1018	SvRV_set (coro_current, next);
913		1019
914	/* free this only after the transfer */	1020	/* free this only after the transfer */
915	LOCK;	1021	LOCK;
916	free_coro_mortal ();	1022	free_coro_mortal ();
917	UNLOCK;	1023	UNLOCK;
918	coro_mortal = prev;	1024	coro_mortal = prev;
919		1025
		1026	assert (!SvROK(prev));//D
		1027	assert (!SvROK(next));//D
		1028
920	ta->prev = SvSTATE (prev);	1029	ta->prev = SvSTATE (prev);
921	ta->next = SvSTATE (next);	1030	ta->next = SvSTATE (next);
922	ta->flags = TRANSFER_SAVE_ALL;	1031
		1032	assert (ta->next->flags & CF_READY);
		1033	ta->next->flags &= ~CF_READY;
923	}	1034	}
924		1035
925	static void	1036	static void
926	prepare_cede (struct transfer_args *ta)	1037	prepare_cede (struct transfer_args *ta)
927	{	1038	{
928	LOCK;	1039	api_ready (coro_current);
929	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));
930	UNLOCK;
931		1040
932	prepare_schedule (ta);	1041	prepare_schedule (ta);
933	}	1042	}
934		1043
935	static void	1044	static void
936	api_schedule (void)	1045	api_schedule (void)
937	{	1046	{
938	dTHX;
939	struct transfer_args ta;	1047	struct transfer_args ta;
940		1048
941	prepare_schedule (&ta);	1049	prepare_schedule (&ta);
942	TRANSFER (ta);	1050	TRANSFER (ta);
943	}	1051	}
944		1052
945	static void	1053	static void
946	api_cede (void)	1054	api_cede (void)
947	{	1055	{
948	dTHX;
949	struct transfer_args ta;	1056	struct transfer_args ta;
950		1057
951	prepare_cede (&ta);	1058	prepare_cede (&ta);
952	TRANSFER (ta);	1059	TRANSFER (ta);
953	}	1060	}
…		…
963	#endif	1070	#endif
964	BOOT_PAGESIZE;	1071	BOOT_PAGESIZE;
965		1072
966	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1073	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
967		1074
968	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	1075	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
969	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	1076	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
970	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	1077	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
		1078	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
		1079	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
971		1080
972	main_mainstack = PL_mainstack;	1081	main_mainstack = PL_mainstack;
973		1082
974	coroapi.ver = CORO_API_VERSION;	1083	coroapi.ver = CORO_API_VERSION;
975	coroapi.transfer = api_transfer;	1084	coroapi.transfer = api_transfer;
…		…
985	HV *hv;	1094	HV *hv;
986	int i;	1095	int i;
987		1096
988	Newz (0, coro, 1, struct coro);	1097	Newz (0, coro, 1, struct coro);
989	coro->args = newAV ();	1098	coro->args = newAV ();
		1099	coro->save = CORO_SAVE_ALL;
		1100	coro->flags = CF_NEW;
990		1101
991	hv = newHV ();	1102	hv = newHV ();
992	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1103	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));	1104	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
994		1105
995	for (i = 1; i < items; i++)	1106	for (i = 1; i < items; i++)
996	av_push (coro->args, newSVsv (ST (i)));	1107	av_push (coro->args, newSVsv (ST (i)));
997	}	1108	}
998	OUTPUT:	1109	OUTPUT:
		1110	RETVAL
		1111
		1112	int
		1113	save (SV *coro, int new_save = -1)
		1114	CODE:
		1115	RETVAL = api_save (coro, new_save);
		1116	OUTPUT:
999	RETVAL	1117	RETVAL
1000		1118
1001	void	1119	void
1002	_set_stacklevel (...)	1120	_set_stacklevel (...)
1003	ALIAS:	1121	ALIAS:
1004	Coro::State::transfer = 1	1122	Coro::State::transfer = 1
1005	Coro::schedule = 2	1123	Coro::schedule = 2
1006	Coro::cede = 3	1124	Coro::cede = 3
1007	Coro::Cont::yield = 4
1008	CODE:	1125	CODE:
1009	{	1126	{
1010	struct transfer_args ta;	1127	struct transfer_args ta;
1011		1128
1012	switch (ix)	1129	switch (ix)
1013	{	1130	{
1014	case 0:	1131	case 0:
1015	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1132	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1016	ta.next = 0;	1133	ta.next = 0;
1017	ta.flags = TRANSFER_SET_STACKLEVEL;
1018	break;	1134	break;
1019		1135
1020	case 1:	1136	case 1:
1021	if (items != 3)	1137	if (items != 2)
1022	croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items);	1138	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1023		1139
1024	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));	1140	prepare_transfer (&ta, ST (0), ST (1));
1025	break;	1141	break;
1026		1142
1027	case 2:	1143	case 2:
1028	prepare_schedule (&ta);	1144	prepare_schedule (&ta);
1029	break;	1145	break;
1030		1146
1031	case 3:	1147	case 3:
1032	prepare_cede (&ta);	1148	prepare_cede (&ta);
1033	break;	1149	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	}	1150	}
1062		1151
1063	TRANSFER (ta);	1152	TRANSFER (ta);
1064	}	1153	}
1065		1154
…		…
1109	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1198	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1110	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1199	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1111	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1200	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1112	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1201	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1113		1202
1114	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);	1203	coro_current = get_sv ("Coro::current", FALSE);
1115	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);	1204	SvREADONLY_on (coro_current);
1116		1205
1117	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1206	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1118	coro_ready[i] = newAV ();	1207	coro_ready[i] = newAV ();
1119		1208
1120	{	1209	{
1121	SV *sv = perl_get_sv("Coro::API", 1);	1210	SV *sv = perl_get_sv("Coro::API", 1);
1122		1211
1123	coroapi.schedule = api_schedule;	1212	coroapi.schedule = api_schedule;
		1213	coroapi.save = api_save;
1124	coroapi.cede = api_cede;	1214	coroapi.cede = api_cede;
1125	coroapi.ready = api_ready;	1215	coroapi.ready = api_ready;
		1216	coroapi.is_ready = api_is_ready;
1126	coroapi.nready = &coro_nready;	1217	coroapi.nready = &coro_nready;
1127	coroapi.current = coro_current;	1218	coroapi.current = coro_current;
1128		1219
1129	GCoroAPI = &coroapi;	1220	GCoroAPI = &coroapi;
1130	sv_setiv (sv, (IV)&coroapi);	1221	sv_setiv (sv, (IV)&coroapi);
1131	SvREADONLY_on (sv);	1222	SvREADONLY_on (sv);
1132	}	1223	}
1133	}	1224	}
		1225
		1226	void
		1227	_set_current (SV *current)
		1228	PROTOTYPE: $
		1229	CODE:
		1230	SvREFCNT_dec (SvRV (coro_current));
		1231	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1134		1232
1135	int	1233	int
1136	prio (Coro::State coro, int newprio = 0)	1234	prio (Coro::State coro, int newprio = 0)
1137	ALIAS:	1235	ALIAS:
1138	nice = 1	1236	nice = 1
…		…
1150		1248
1151	coro->prio = newprio;	1249	coro->prio = newprio;
1152	}	1250	}
1153	}	1251	}
1154		1252
1155	void	1253	SV *
1156	ready (SV *self)	1254	ready (SV *self)
1157	PROTOTYPE: $	1255	PROTOTYPE: $
1158	CODE:	1256	CODE:
1159	api_ready (self);	1257	RETVAL = boolSV (api_ready (self));
		1258	OUTPUT:
		1259	RETVAL
		1260
		1261	SV *
		1262	is_ready (SV *self)
		1263	PROTOTYPE: $
		1264	CODE:
		1265	RETVAL = boolSV (api_is_ready (self));
		1266	OUTPUT:
		1267	RETVAL
1160		1268
1161	int	1269	int
1162	nready (...)	1270	nready (...)
1163	PROTOTYPE:	1271	PROTOTYPE:
1164	CODE:	1272	CODE:
…		…
1170		1278
1171	SV *	1279	SV *
1172	_get_state ()	1280	_get_state ()
1173	CODE:	1281	CODE:
1174	{	1282	{
1175	struct {	1283	struct io_state *data;
1176	int errorno;
1177	int laststype;
1178	int laststatval;
1179	Stat_t statcache;
1180	} data;
1181		1284
		1285	RETVAL = newSV (sizeof (struct io_state));
		1286	data = (struct io_state *)SvPVX (RETVAL);
		1287	SvCUR_set (RETVAL, sizeof (struct io_state));
		1288	SvPOK_only (RETVAL);
		1289
1182	data.errorno = errno;	1290	data->errorno = errno;
1183	data.laststype = PL_laststype;	1291	data->laststype = PL_laststype;
1184	data.laststatval = PL_laststatval;	1292	data->laststatval = PL_laststatval;
1185	data.statcache = PL_statcache;	1293	data->statcache = PL_statcache;
1186
1187	RETVAL = newSVpvn ((char *)&data, sizeof data);
1188	}	1294	}
1189	OUTPUT:	1295	OUTPUT:
1190	RETVAL	1296	RETVAL
1191		1297
1192	void	1298	void
1193	_set_state (char *data_)	1299	_set_state (char *data_)
1194	PROTOTYPE: $	1300	PROTOTYPE: $
1195	CODE:	1301	CODE:
1196	{	1302	{
1197	struct {	1303	struct io_state data = (void )data_;
1198	int errorno;
1199	int laststype;
1200	int laststatval;
1201	Stat_t statcache;
1202	} data = (void )data_;
1203		1304
1204	errno = data->errorno;	1305	errno = data->errorno;
1205	PL_laststype = data->laststype;	1306	PL_laststype = data->laststype;
1206	PL_laststatval = data->laststatval;	1307	PL_laststatval = data->laststatval;
1207	PL_statcache = data->statcache;	1308	PL_statcache = data->statcache;
1208	}	1309	}
		1310

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 1.125 by root, Mon Dec 11 20:54:45 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 1.125 by root, Mon Dec 11 20:54:45 2006 UTC