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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.119 by root, Sat Dec 2 15:41:28 2006 UTC vs.
Revision 1.133 by root, Thu Jan 4 20:14:19 2007 UTC

…		…
4	#include "perl.h"	4	#include "perl.h"
5	#include "XSUB.h"	5	#include "XSUB.h"
6		6
7	#include "patchlevel.h"	7	#include "patchlevel.h"
8		8
9	#if USE_VALGRIND
10	# include <valgrind/valgrind.h>
11	#endif
12
13	/* the maximum number of idle cctx that will be pooled */
14	#define MAX_IDLE_CCTX 8
15
16	#define PERL_VERSION_ATLEAST(a,b,c) \
17	(PERL_REVISION > (a) \
18	\|\| (PERL_REVISION == (a) \
19	&& (PERL_VERSION > (b) \
20	\|\| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))
21
22	#if !PERL_VERSION_ATLEAST (5,6,0)
23	# ifndef PL_ppaddr
24	# define PL_ppaddr ppaddr
25	# endif
26	# ifndef call_sv
27	# define call_sv perl_call_sv
28	# endif
29	# ifndef get_sv
30	# define get_sv perl_get_sv
31	# endif
32	# ifndef get_cv
33	# define get_cv perl_get_cv
34	# endif
35	# ifndef IS_PADGV
36	# define IS_PADGV(v) 0
37	# endif
38	# ifndef IS_PADCONST
39	# define IS_PADCONST(v) 0
40	# endif
41	#endif
42
43	#include <stdio.h>	9	#include <stdio.h>
44	#include <errno.h>	10	#include <errno.h>
45		11	#include <assert.h>
46	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
47	# undef STACKGUARD
48	#endif
49
50	#ifndef STACKGUARD
51	# define STACKGUARD 0
52	#endif
53		12
54	#ifdef HAVE_MMAP	13	#ifdef HAVE_MMAP
55	# include <unistd.h>	14	# include <unistd.h>
56	# include <sys/mman.h>	15	# include <sys/mman.h>
57	# ifndef MAP_ANONYMOUS	16	# ifndef MAP_ANONYMOUS
…		…
72	#else	31	#else
73	# define PAGESIZE 0	32	# define PAGESIZE 0
74	# define BOOT_PAGESIZE (void)0	33	# define BOOT_PAGESIZE (void)0
75	#endif	34	#endif
76		35
		36	#if USE_VALGRIND
		37	# include <valgrind/valgrind.h>
		38	#endif
		39
		40	/* the maximum number of idle cctx that will be pooled */
		41	#define MAX_IDLE_CCTX 8
		42
		43	#define PERL_VERSION_ATLEAST(a,b,c) \
		44	(PERL_REVISION > (a) \
		45	\|\| (PERL_REVISION == (a) \
		46	&& (PERL_VERSION > (b) \
		47	\|\| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))
		48
		49	#if !PERL_VERSION_ATLEAST (5,6,0)
		50	# ifndef PL_ppaddr
		51	# define PL_ppaddr ppaddr
		52	# endif
		53	# ifndef call_sv
		54	# define call_sv perl_call_sv
		55	# endif
		56	# ifndef get_sv
		57	# define get_sv perl_get_sv
		58	# endif
		59	# ifndef get_cv
		60	# define get_cv perl_get_cv
		61	# endif
		62	# ifndef IS_PADGV
		63	# define IS_PADGV(v) 0
		64	# endif
		65	# ifndef IS_PADCONST
		66	# define IS_PADCONST(v) 0
		67	# endif
		68	#endif
		69
		70	/* 5.8.7 */
		71	#ifndef SvRV_set
		72	# define SvRV_set(s,v) SvRV(s) = (v)
		73	#endif
		74
		75	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
		76	# undef STACKGUARD
		77	#endif
		78
		79	#ifndef STACKGUARD
		80	# define STACKGUARD 0
		81	#endif
		82
		83	/* prefer perl internal functions over our own? */
		84	#ifndef PREFER_PERL_FUNCTIONS
		85	# define PREFER_PERL_FUNCTIONS 0
		86	#endif
		87
77	/* The next macro should declare a variable stacklevel that contains and approximation	88	/* The next macro should declare a variable stacklevel that contains and approximation
78	* to the current C stack pointer. Its property is that it changes with each call	89	* to the current C stack pointer. Its property is that it changes with each call
79	* and should be unique. */	90	* and should be unique. */
80	#define dSTACKLEVEL int stacklevel	91	#define dSTACKLEVEL int stacklevel
81	#define STACKLEVEL ((void *)&stacklevel)	92	#define STACKLEVEL ((void *)&stacklevel)
82		93
83	#define IN_DESTRUCT (PL_main_cv == Nullcv)	94	#define IN_DESTRUCT (PL_main_cv == Nullcv)
84		95
85	#if __GNUC__ >= 3	96	#if __GNUC__ >= 3
86	# define attribute(x) __attribute__(x)	97	# define attribute(x) __attribute__(x)
		98	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
87	#else	99	#else
88	# define attribute(x)	100	# define attribute(x)
		101	# define BARRIER
89	#endif	102	#endif
90		103
91	#define NOINLINE attribute ((noinline))	104	#define NOINLINE attribute ((noinline))
92		105
93	#include "CoroAPI.h"	106	#include "CoroAPI.h"
94
95	#define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */
96		107
97	#ifdef USE_ITHREADS	108	#ifdef USE_ITHREADS
98	static perl_mutex coro_mutex;	109	static perl_mutex coro_mutex;
99	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	110	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
100	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	111	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
101	#else	112	#else
102	# define LOCK (void)0	113	# define LOCK (void)0
103	# define UNLOCK (void)0	114	# define UNLOCK (void)0
104	#endif	115	#endif
105		116
		117	struct io_state
		118	{
		119	int errorno;
		120	I32 laststype;
		121	int laststatval;
		122	Stat_t statcache;
		123	};
		124
106	static struct CoroAPI coroapi;	125	static struct CoroAPI coroapi;
107	static AV main_mainstack; / used to differentiate between $main and others */	126	static AV main_mainstack; / used to differentiate between $main and others */
108	static HV coro_state_stash, coro_stash;	127	static HV coro_state_stash, coro_stash;
109	static SV coro_mortal; / will be freed after next transfer */	128	static SV coro_mortal; / will be freed after next transfer */
110		129
…		…
118	/* the stack */	137	/* the stack */
119	void *sptr;	138	void *sptr;
120	long ssize; /* positive == mmap, otherwise malloc */	139	long ssize; /* positive == mmap, otherwise malloc */
121		140
122	/* cpu state */	141	/* cpu state */
123	void idle_sp; / sp of top-level transfer/schedule/cede call */	142	void idle_sp; / sp of top-level transfer/schedule/cede call */
		143	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
124	JMPENV *top_env;	144	JMPENV *top_env;
125	coro_context cctx;	145	coro_context cctx;
126		146
127	int inuse;	147	int inuse;
128		148
…		…
130	int valgrind_id;	150	int valgrind_id;
131	#endif	151	#endif
132	} coro_cctx;	152	} coro_cctx;
133		153
134	enum {	154	enum {
135	CF_RUNNING = 0x0001, /* coroutine is running */	155	CF_RUNNING = 0x0001, /* coroutine is running */
136	CF_READY = 0x0002, /* coroutine is ready */	156	CF_READY = 0x0002, /* coroutine is ready */
137	CF_NEW = 0x0004, /* ahs never been switched to */	157	CF_NEW = 0x0004, /* has never been switched to */
		158	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
138	};	159	};
139		160
140	/* this is a structure representing a perl-level coroutine */	161	/* this is a structure representing a perl-level coroutine */
141	struct coro {	162	struct coro {
142	/* the c coroutine allocated to this perl coroutine, if any */	163	/* the c coroutine allocated to this perl coroutine, if any */
143	coro_cctx *cctx;	164	coro_cctx *cctx;
144		165
145	/* data associated with this coroutine (initial args) */	166	/* data associated with this coroutine (initial args) */
146	AV *args;	167	AV *args;
147	int refcnt;	168	int refcnt;
148	int flags;	169	int save; /* CORO_SAVE flags */
		170	int flags; /* CF_ flags */
149		171
150	/* optionally saved, might be zero */	172	/* optionally saved, might be zero */
151	AV *defav;	173	AV defav; / @_ */
152	SV *defsv;	174	SV defsv; / $_ */
153	SV *errsv;	175	SV errsv; / $@ */
		176	SV irssv; / $/ */
		177	SV irssv_sv; / real $/ cache */
154		178
155	#define VAR(name,type) type name;	179	#define VAR(name,type) type name;
156	# include "state.h"	180	# include "state.h"
157	#undef VAR	181	#undef VAR
158		182
…		…
244		268
245	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	269	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
246	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	270	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
247	else	271	else
248	{	272	{
249	#if 0	273	#if PREFER_PERL_FUNCTIONS
250	/* this is probably cleaner, but also slower? */	274	/* this is probably cleaner, but also slower? */
251	CV *cp = Perl_cv_clone (cv);	275	CV *cp = Perl_cv_clone (cv);
252	CvPADLIST (cv) = CvPADLIST (cp);	276	CvPADLIST (cv) = CvPADLIST (cp);
253	CvPADLIST (cp) = 0;	277	CvPADLIST (cp) = 0;
254	SvREFCNT_dec (cp);	278	SvREFCNT_dec (cp);
…		…
281	}	305	}
282		306
283	#define SB do {	307	#define SB do {
284	#define SE } while (0)	308	#define SE } while (0)
285		309
286	#define LOAD(state) load_state ((state))
287	#define SAVE(state,flags) save_state ((state),(flags))
288
289	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE	310	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
290		311
291	static void	312	static void
292	load_state (Coro__State c)	313	load_perl (Coro__State c)
293	{	314	{
294	#define VAR(name,type) PL_ ## name = c->name;	315	#define VAR(name,type) PL_ ## name = c->name;
295	# include "state.h"	316	# include "state.h"
296	#undef VAR	317	#undef VAR
297		318
298	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	319	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
299	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	320	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
300	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	321	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
		322	if (c->irssv)
		323	{
		324	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
		325	SvREFCNT_dec (c->irssv);
		326	else
		327	{
		328	REPLACE_SV (PL_rs, c->irssv);
		329	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
		330	sv_setsv (c->irssv_sv, PL_rs);
		331	}
		332	}
301		333
302	{	334	{
303	dSP;	335	dSP;
304	CV *cv;	336	CV *cv;
305		337
…		…
314	PUTBACK;	346	PUTBACK;
315	}	347	}
316	}	348	}
317		349
318	static void	350	static void
319	save_state (Coro__State c, int flags)	351	save_perl (Coro__State c)
320	{	352	{
321	{	353	{
322	dSP;	354	dSP;
323	I32 cxix = cxstack_ix;	355	I32 cxix = cxstack_ix;
324	PERL_CONTEXT *ccstk = cxstack;	356	PERL_CONTEXT *ccstk = cxstack;
…		…
327	/*	359	/*
328	* the worst thing you can imagine happens first - we have to save	360	* the worst thing you can imagine happens first - we have to save
329	* (and reinitialize) all cv's in the whole callchain :(	361	* (and reinitialize) all cv's in the whole callchain :(
330	*/	362	*/
331		363
		364	EXTEND (SP, 3 + 1);
332	PUSHs (Nullsv);	365	PUSHs (Nullsv);
333	/* this loop was inspired by pp_caller */	366	/* this loop was inspired by pp_caller */
334	for (;;)	367	for (;;)
335	{	368	{
336	while (cxix >= 0)	369	while (cxix >= 0)
…		…
342	CV *cv = cx->blk_sub.cv;	375	CV *cv = cx->blk_sub.cv;
343		376
344	if (CvDEPTH (cv))	377	if (CvDEPTH (cv))
345	{	378	{
346	EXTEND (SP, 3);	379	EXTEND (SP, 3);
347
348	PUSHs ((SV *)CvPADLIST (cv));	380	PUSHs ((SV *)CvPADLIST (cv));
349	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	381	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
350	PUSHs ((SV *)cv);	382	PUSHs ((SV *)cv);
351		383
352	CvDEPTH (cv) = 0;	384	CvDEPTH (cv) = 0;
353	get_padlist (cv);	385	get_padlist (cv);
354	}	386	}
355	}	387	}
356	#ifdef CXt_FORMAT
357	else if (CxTYPE (cx) == CXt_FORMAT)
358	{
359	/* I never used formats, so how should I know how these are implemented? */
360	/* my bold guess is as a simple, plain sub... */
361	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
362	}
363	#endif
364	}	388	}
365		389
366	if (top_si->si_type == PERLSI_MAIN)	390	if (top_si->si_type == PERLSI_MAIN)
367	break;	391	break;
368		392
…		…
372	}	396	}
373		397
374	PUTBACK;	398	PUTBACK;
375	}	399	}
376		400
377	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	401	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
378	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	402	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
379	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	403	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
		404	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
380		405
381	#define VAR(name,type)c->name = PL_ ## name;	406	#define VAR(name,type)c->name = PL_ ## name;
382	# include "state.h"	407	# include "state.h"
383	#undef VAR	408	#undef VAR
384	}	409	}
…		…
387	* allocate various perl stacks. This is an exact copy	412	* allocate various perl stacks. This is an exact copy
388	* of perl.c:init_stacks, except that it uses less memory	413	* of perl.c:init_stacks, except that it uses less memory
389	* on the (sometimes correct) assumption that coroutines do	414	* on the (sometimes correct) assumption that coroutines do
390	* not usually need a lot of stackspace.	415	* not usually need a lot of stackspace.
391	*/	416	*/
		417	#if PREFER_PERL_FUNCTIONS
		418	# define coro_init_stacks init_stacks
		419	#else
392	static void	420	static void
393	coro_init_stacks ()	421	coro_init_stacks ()
394	{	422	{
395	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	423	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));
396	PL_curstackinfo->si_type = PERLSI_MAIN;	424	PL_curstackinfo->si_type = PERLSI_MAIN;
…		…
426	New(54,PL_retstack,16,OP*);	454	New(54,PL_retstack,16,OP*);
427	PL_retstack_ix = 0;	455	PL_retstack_ix = 0;
428	PL_retstack_max = 16;	456	PL_retstack_max = 16;
429	#endif	457	#endif
430	}	458	}
		459	#endif
431		460
432	/*	461	/*
433	* destroy the stacks, the callchain etc...	462	* destroy the stacks, the callchain etc...
434	*/	463	*/
435	static void	464	static void
436	coro_destroy_stacks ()	465	coro_destroy_stacks ()
437	{	466	{
438	if (!IN_DESTRUCT)	467	if (!IN_DESTRUCT)
439	{	468	{
440	/* is this ugly, I ask? */	469	/* restore all saved variables and stuff */
441	LEAVE_SCOPE (0);	470	LEAVE_SCOPE (0);
		471	assert (PL_tmps_floor == -1);
442		472
443	/* sure it is, but more important: is it correct?? :/ */	473	/* free all temporaries */
444	FREETMPS;	474	FREETMPS;
		475	assert (PL_tmps_ix == -1);
445		476
446	/POPSTACK_TO (PL_mainstack);//D//use/	477	POPSTACK_TO (PL_mainstack);
447	}	478	}
448		479
449	while (PL_curstackinfo->si_next)	480	while (PL_curstackinfo->si_next)
450	PL_curstackinfo = PL_curstackinfo->si_next;	481	PL_curstackinfo = PL_curstackinfo->si_next;
451		482
452	while (PL_curstackinfo)	483	while (PL_curstackinfo)
453	{	484	{
454	PERL_SI *p = PL_curstackinfo->si_prev;	485	PERL_SI *p = PL_curstackinfo->si_prev;
455		486
456	{ /D//remove/
457	dSP;
458	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
459	PUTBACK; /* possibly superfluous */
460	}
461
462	if (!IN_DESTRUCT)	487	if (!IN_DESTRUCT)
463	{
464	dounwind (-1);/D//remove/
465	SvREFCNT_dec (PL_curstackinfo->si_stack);	488	SvREFCNT_dec (PL_curstackinfo->si_stack);
466	}
467		489
468	Safefree (PL_curstackinfo->si_cxstack);	490	Safefree (PL_curstackinfo->si_cxstack);
469	Safefree (PL_curstackinfo);	491	Safefree (PL_curstackinfo);
470	PL_curstackinfo = p;	492	PL_curstackinfo = p;
471	}	493	}
…		…
497		519
498	{	520	{
499	dSP;	521	dSP;
500	LOGOP myop;	522	LOGOP myop;
501		523
502	/* I have no idea why this is needed, but it is */
503	PUSHMARK (SP);
504
505	SvREFCNT_dec (GvAV (PL_defgv));	524	SvREFCNT_dec (GvAV (PL_defgv));
506	GvAV (PL_defgv) = coro->args; coro->args = 0;	525	GvAV (PL_defgv) = coro->args; coro->args = 0;
507		526
508	Zero (&myop, 1, LOGOP);	527	Zero (&myop, 1, LOGOP);
509	myop.op_next = Nullop;	528	myop.op_next = Nullop;
510	myop.op_flags = OPf_WANT_VOID;	529	myop.op_flags = OPf_WANT_VOID;
511		530
512	PL_op = (OP *)&myop;
513
514	PUSHMARK (SP);	531	PUSHMARK (SP);
515	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	532	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));
516	PUTBACK;	533	PUTBACK;
		534	PL_op = (OP *)&myop;
517	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	535	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
518	SPAGAIN;	536	SPAGAIN;
519	}	537	}
520		538
521	ENTER; /* necessary e.g. for dounwind */	539	ENTER; /* necessary e.g. for dounwind */
…		…
529	SvREFCNT_dec (coro_mortal);	547	SvREFCNT_dec (coro_mortal);
530	coro_mortal = 0;	548	coro_mortal = 0;
531	}	549	}
532	}	550	}
533		551
		552	/* inject a fake call to Coro::State::_cctx_init into the execution */
534	static void NOINLINE	553	static void NOINLINE
535	prepare_cctx (coro_cctx *cctx)	554	prepare_cctx (coro_cctx *cctx)
536	{	555	{
537	dSP;	556	dSP;
538	LOGOP myop;	557	LOGOP myop;
539		558
540	Zero (&myop, 1, LOGOP);	559	Zero (&myop, 1, LOGOP);
541	myop.op_next = PL_op;	560	myop.op_next = PL_op;
542	myop.op_flags = OPf_WANT_VOID;	561	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
543
544	sv_setiv (get_sv ("Coro::State::_cctx", FALSE), PTR2IV (cctx));
545		562
546	PUSHMARK (SP);	563	PUSHMARK (SP);
		564	EXTEND (SP, 2);
		565	PUSHs (sv_2mortal (newSViv (PTR2IV (cctx))));
547	XPUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));	566	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
548	PUTBACK;	567	PUTBACK;
		568	PL_op = (OP *)&myop;
549	PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX);	569	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
550	SPAGAIN;	570	SPAGAIN;
551	}	571	}
552		572
553	static void	573	static void
554	coro_run (void *arg)	574	coro_run (void *arg)
555	{	575	{
556	/* coro_run is the alternative epilogue of transfer() */	576	/* coro_run is the alternative tail of transfer(), so unlock here. */
557	UNLOCK;	577	UNLOCK;
558		578
559	/*	579	/*
560	* this is a _very_ stripped down perl interpreter ;)	580	* this is a _very_ stripped down perl interpreter ;)
561	*/	581	*/
…		…
563		583
564	/* inject call to cctx_init */	584	/* inject call to cctx_init */
565	prepare_cctx ((coro_cctx *)arg);	585	prepare_cctx ((coro_cctx *)arg);
566		586
567	/* somebody will hit me for both perl_run and PL_restartop */	587	/* somebody will hit me for both perl_run and PL_restartop */
		588	PL_restartop = PL_op;
568	perl_run (PL_curinterp);	589	perl_run (PL_curinterp);
569		590
570	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	591	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);
571	abort ();	592	abort ();
572	}	593	}
…		…
576	{	597	{
577	coro_cctx *cctx;	598	coro_cctx *cctx;
578		599
579	++cctx_count;	600	++cctx_count;
580		601
581	New (0, cctx, 1, coro_cctx);	602	Newz (0, cctx, 1, coro_cctx);
582		603
583	#if HAVE_MMAP	604	#if HAVE_MMAP
584		605
585	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	606	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
586	/* mmap suppsedly does allocate-on-write for us */	607	/* mmap supposedly does allocate-on-write for us */
587	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	608	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
588		609
589	if (cctx->sptr == (void *)-1)	610	if (cctx->sptr == (void *)-1)
590	{	611	{
591	perror ("FATAL: unable to mmap stack for coroutine");	612	perror ("FATAL: unable to mmap stack for coroutine");
…		…
681	cctx_first = cctx;	702	cctx_first = cctx;
682	}	703	}
683		704
684	/* never call directly, always through the coro_state_transfer global variable */	705	/* never call directly, always through the coro_state_transfer global variable */
685	static void NOINLINE	706	static void NOINLINE
686	transfer (struct coro prev, struct coro next, int flags)	707	transfer (struct coro prev, struct coro next)
687	{	708	{
688	dSTACKLEVEL;	709	dSTACKLEVEL;
689		710
690	/* sometimes transfer is only called to set idle_sp */	711	/* sometimes transfer is only called to set idle_sp */
691	if (flags == TRANSFER_SET_STACKLEVEL)	712	if (!next)
		713	{
692	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	714	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
		715	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
		716	}
693	else if (prev != next)	717	else if (prev != next)
694	{	718	{
695	coro_cctx *prev__cctx;	719	coro_cctx *prev__cctx;
696		720
697	if (prev->flags & CF_NEW)	721	if (prev->flags & CF_NEW)
…		…
708	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");	732	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
709		733
710	if (next->flags & CF_RUNNING)	734	if (next->flags & CF_RUNNING)
711	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	735	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
712		736
		737	if (next->flags & CF_DESTROYED)
		738	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		739
713	prev->flags &= ~CF_RUNNING;	740	prev->flags &= ~CF_RUNNING;
714	next->flags \|= CF_RUNNING;	741	next->flags \|= CF_RUNNING;
715		742
716	LOCK;	743	LOCK;
717		744
718	if (next->flags & CF_NEW)	745	if (next->flags & CF_NEW)
719	{	746	{
720	/* need to start coroutine */	747	/* need to start coroutine */
721	next->flags &= ~CF_NEW;	748	next->flags &= ~CF_NEW;
722	/* first get rid of the old state */	749	/* first get rid of the old state */
723	SAVE (prev, -1);	750	save_perl (prev);
724	/* setup coroutine call */	751	/* setup coroutine call */
725	setup_coro (next);	752	setup_coro (next);
726	/* need a new stack */	753	/* need a new stack */
727	assert (!next->stack);	754	assert (!next->cctx);
728	}	755	}
729	else	756	else
730	{	757	{
731	/* coroutine already started */	758	/* coroutine already started */
732	SAVE (prev, flags);	759	save_perl (prev);
733	LOAD (next);	760	load_perl (next);
734	}	761	}
735		762
736	prev__cctx = prev->cctx;	763	prev__cctx = prev->cctx;
737		764
738	/* possibly "free" the cctx */	765	/* possibly "free" the cctx */
739	if (prev__cctx->idle_sp == STACKLEVEL)	766	if (prev__cctx->idle_sp == STACKLEVEL)
740	{	767	{
741	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	768	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
742	assert (PL_top_env == prev__cctx->top_env);	769	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
743		770
744	prev->cctx = 0;	771	prev->cctx = 0;
745		772
746	cctx_put (prev__cctx);	773	cctx_put (prev__cctx);
747	prev__cctx->inuse = 0;	774	prev__cctx->inuse = 0;
…		…
760	PL_top_env = next->cctx->top_env;	787	PL_top_env = next->cctx->top_env;
761	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	788	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
762	}	789	}
763		790
764	free_coro_mortal ();	791	free_coro_mortal ();
765
766	UNLOCK;	792	UNLOCK;
767	}	793	}
768	}	794	}
769		795
770	struct transfer_args	796	struct transfer_args
771	{	797	{
772	struct coro prev, next;	798	struct coro prev, next;
773	int flags;
774	};	799	};
775		800
776	#define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags)	801	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)
777		802
778	static void	803	static int
779	coro_state_destroy (struct coro *coro)	804	coro_state_destroy (struct coro *coro)
780	{	805	{
781	if (coro->refcnt--)	806	if (coro->refcnt--)
782	return;	807	return 0;
		808
		809	if (coro->flags & CF_DESTROYED)
		810	return 0;
		811
		812	coro->flags \|= CF_DESTROYED;
783		813
784	if (coro->mainstack && coro->mainstack != main_mainstack)	814	if (coro->mainstack && coro->mainstack != main_mainstack)
785	{	815	{
		816	assert (!(coro->flags & CF_RUNNING));
		817
786	struct coro temp;	818	struct coro temp;
		819	Zero (&temp, 1, struct coro);
		820	temp.save = CORO_SAVE_ALL;
787		821
788	if (coro->flags & CF_RUNNING)	822	if (coro->flags & CF_RUNNING)
789	croak ("FATAL: tried to destroy currently running coroutine");	823	croak ("FATAL: tried to destroy currently running coroutine");
790		824
791	SAVE ((&temp), TRANSFER_SAVE_ALL);	825	save_perl (&temp);
792	LOAD (coro);	826	load_perl (coro);
793		827
794	coro_destroy_stacks ();	828	coro_destroy_stacks ();
795		829
796	LOAD ((&temp)); /* this will get rid of defsv etc.. */	830	load_perl (&temp); /* this will get rid of defsv etc.. */
797		831
798	coro->mainstack = 0;	832	coro->mainstack = 0;
799	}	833	}
800		834
801	cctx_destroy (coro->cctx);	835	cctx_destroy (coro->cctx);
802	SvREFCNT_dec (coro->args);	836	SvREFCNT_dec (coro->args);
803	Safefree (coro);	837
		838	return 1;
804	}	839	}
805		840
806	static int	841	static int
807	coro_state_clear (pTHX_ SV sv, MAGIC mg)	842	coro_state_clear (pTHX_ SV sv, MAGIC mg)
808	{	843	{
809	struct coro coro = (struct coro )mg->mg_ptr;	844	struct coro coro = (struct coro )mg->mg_ptr;
810	mg->mg_ptr = 0;	845	mg->mg_ptr = 0;
811		846
812	coro_state_destroy (coro);	847	coro_state_destroy (coro);
		848
		849	if (!coro->refcnt)
		850	Safefree (coro);
813		851
814	return 0;	852	return 0;
815	}	853	}
816		854
817	static int	855	static int
…		…
856	assert (mg->mg_type == PERL_MAGIC_ext);	894	assert (mg->mg_type == PERL_MAGIC_ext);
857	return (struct coro *)mg->mg_ptr;	895	return (struct coro *)mg->mg_ptr;
858	}	896	}
859		897
860	static void	898	static void
861	prepare_transfer (struct transfer_args ta, SV prev, SV *next, int flags)	899	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)
862	{	900	{
863	ta->prev = SvSTATE (prev);	901	ta->prev = SvSTATE (prev_sv);
864	ta->next = SvSTATE (next);	902	ta->next = SvSTATE (next_sv);
865	ta->flags = flags;
866	}	903	}
867		904
868	static void	905	static void
869	api_transfer (SV prev, SV next, int flags)	906	api_transfer (SV prev_sv, SV next_sv)
870	{	907	{
871	struct transfer_args ta;	908	struct transfer_args ta;
872		909
873	prepare_transfer (&ta, prev, next, flags);	910	prepare_transfer (&ta, prev_sv, next_sv);
874	TRANSFER (ta);	911	TRANSFER (ta);
		912	}
		913
		914	static int
		915	api_save (SV *coro_sv, int new_save)
		916	{
		917	struct coro *coro = SvSTATE (coro_sv);
		918	int old_save = coro->save;
		919
		920	if (new_save >= 0)
		921	coro->save = new_save;
		922
		923	return old_save;
875	}	924	}
876		925
877	/ Coro ******************************************************************/	926	/ Coro ******************************************************************/
878		927
879	#define PRIO_MAX 3	928	#define PRIO_MAX 3
…		…
925	coro = SvSTATE (coro_sv);	974	coro = SvSTATE (coro_sv);
926		975
927	if (coro->flags & CF_READY)	976	if (coro->flags & CF_READY)
928	return 0;	977	return 0;
929		978
930	#if 0 /* this is actually harmless */
931	if (coro->flags & CF_RUNNING)
932	croak ("Coro::ready called on currently running coroutine");
933	#endif
934
935	coro->flags \|= CF_READY;	979	coro->flags \|= CF_READY;
936		980
937	LOCK;	981	LOCK;
938	coro_enq (SvREFCNT_inc (coro_sv));	982	coro_enq (SvREFCNT_inc (coro_sv));
939	UNLOCK;	983	UNLOCK;
…		…
942	}	986	}
943		987
944	static int	988	static int
945	api_is_ready (SV *coro_sv)	989	api_is_ready (SV *coro_sv)
946	{	990	{
947	return !!SvSTATE (coro_sv)->flags & CF_READY;	991	return !!(SvSTATE (coro_sv)->flags & CF_READY);
948	}	992	}
949		993
950	static void	994	static void
951	prepare_schedule (struct transfer_args *ta)	995	prepare_schedule (struct transfer_args *ta)
952	{	996	{
953	SV prev, next;	997	SV prev_sv, next_sv;
954		998
955	for (;;)	999	for (;;)
956	{	1000	{
957	LOCK;	1001	LOCK;
958	next = coro_deq (PRIO_MIN);	1002	next_sv = coro_deq (PRIO_MIN);
959	UNLOCK;	1003	UNLOCK;
960		1004
		1005	/* nothing to schedule: call the idle handler */
961	if (next)	1006	if (!next_sv)
962	break;
963
964	{	1007	{
965	dSP;	1008	dSP;
966		1009
967	ENTER;	1010	ENTER;
968	SAVETMPS;	1011	SAVETMPS;
969		1012
970	PUSHMARK (SP);	1013	PUSHMARK (SP);
971	PUTBACK;	1014	PUTBACK;
972	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1015	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
973		1016
974	FREETMPS;	1017	FREETMPS;
975	LEAVE;	1018	LEAVE;
		1019	continue;
976	}	1020	}
977	}
978		1021
979	prev = SvRV (coro_current);	1022	ta->next = SvSTATE (next_sv);
980	SvRV_set (coro_current, next);	1023
		1024	/* cannot transfer to destroyed coros, skip and look for next */
		1025	if (ta->next->flags & CF_DESTROYED)
		1026	{
		1027	SvREFCNT_dec (next_sv);
		1028	continue;
		1029	}
		1030
		1031	break;
		1032	}
981		1033
982	/* free this only after the transfer */	1034	/* free this only after the transfer */
		1035	prev_sv = SvRV (coro_current);
		1036	SvRV_set (coro_current, next_sv);
		1037	ta->prev = SvSTATE (prev_sv);
		1038
		1039	assert (ta->next->flags & CF_READY);
		1040	ta->next->flags &= ~CF_READY;
		1041
983	LOCK;	1042	LOCK;
984	free_coro_mortal ();	1043	free_coro_mortal ();
		1044	coro_mortal = prev_sv;
985	UNLOCK;	1045	UNLOCK;
986	coro_mortal = prev;
987
988	assert (!SvROK(prev));//D
989	assert (!SvROK(next));//D
990
991	ta->prev = SvSTATE (prev);
992	ta->next = SvSTATE (next);
993	ta->flags = TRANSFER_SAVE_ALL;
994
995	assert (ta->flags & CF_READY);
996	ta->next->flags &= ~CF_READY;
997	}	1046	}
998		1047
999	static void	1048	static void
1000	prepare_cede (struct transfer_args *ta)	1049	prepare_cede (struct transfer_args *ta)
1001	{	1050	{
1002	api_ready (coro_current);	1051	api_ready (coro_current);
1003
1004	prepare_schedule (ta);	1052	prepare_schedule (ta);
		1053	}
		1054
		1055	static int
		1056	prepare_cede_notself (struct transfer_args *ta)
		1057	{
		1058	if (coro_nready)
		1059	{
		1060	SV *prev = SvRV (coro_current);
		1061	prepare_schedule (ta);
		1062	api_ready (prev);
		1063	return 1;
		1064	}
		1065	else
		1066	return 0;
1005	}	1067	}
1006		1068
1007	static void	1069	static void
1008	api_schedule (void)	1070	api_schedule (void)
1009	{	1071	{
…		…
1011		1073
1012	prepare_schedule (&ta);	1074	prepare_schedule (&ta);
1013	TRANSFER (ta);	1075	TRANSFER (ta);
1014	}	1076	}
1015		1077
1016	static void	1078	static int
1017	api_cede (void)	1079	api_cede (void)
1018	{	1080	{
1019	struct transfer_args ta;	1081	struct transfer_args ta;
1020		1082
1021	prepare_cede (&ta);	1083	prepare_cede (&ta);
		1084
		1085	if (ta.prev != ta.next)
		1086	{
1022	TRANSFER (ta);	1087	TRANSFER (ta);
		1088	return 1;
		1089	}
		1090	else
		1091	return 0;
		1092	}
		1093
		1094	static int
		1095	api_cede_notself (void)
		1096	{
		1097	struct transfer_args ta;
		1098
		1099	if (prepare_cede_notself (&ta))
		1100	{
		1101	TRANSFER (ta);
		1102	return 1;
		1103	}
		1104	else
		1105	return 0;
1023	}	1106	}
1024		1107
1025	MODULE = Coro::State PACKAGE = Coro::State	1108	MODULE = Coro::State PACKAGE = Coro::State
1026		1109
1027	PROTOTYPES: DISABLE	1110	PROTOTYPES: DISABLE
…		…
1033	#endif	1116	#endif
1034	BOOT_PAGESIZE;	1117	BOOT_PAGESIZE;
1035		1118
1036	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1119	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1037		1120
1038	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	1121	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1039	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	1122	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1040	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	1123	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
		1124	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
		1125	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1041		1126
1042	main_mainstack = PL_mainstack;	1127	main_mainstack = PL_mainstack;
1043		1128
1044	coroapi.ver = CORO_API_VERSION;	1129	coroapi.ver = CORO_API_VERSION;
1045	coroapi.transfer = api_transfer;	1130	coroapi.transfer = api_transfer;
…		…
1055	HV *hv;	1140	HV *hv;
1056	int i;	1141	int i;
1057		1142
1058	Newz (0, coro, 1, struct coro);	1143	Newz (0, coro, 1, struct coro);
1059	coro->args = newAV ();	1144	coro->args = newAV ();
		1145	coro->save = CORO_SAVE_ALL;
1060	coro->flags = CF_NEW;	1146	coro->flags = CF_NEW;
1061		1147
1062	hv = newHV ();	1148	hv = newHV ();
1063	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1149	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1064	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1150	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1065		1151
1066	for (i = 1; i < items; i++)	1152	for (i = 1; i < items; i++)
1067	av_push (coro->args, newSVsv (ST (i)));	1153	av_push (coro->args, newSVsv (ST (i)));
1068	}	1154	}
1069	OUTPUT:	1155	OUTPUT:
		1156	RETVAL
		1157
		1158	int
		1159	save (SV *coro, int new_save = -1)
		1160	CODE:
		1161	RETVAL = api_save (coro, new_save);
		1162	OUTPUT:
1070	RETVAL	1163	RETVAL
1071		1164
1072	void	1165	void
1073	_set_stacklevel (...)	1166	_set_stacklevel (...)
1074	ALIAS:	1167	ALIAS:
1075	Coro::State::transfer = 1	1168	Coro::State::transfer = 1
1076	Coro::schedule = 2	1169	Coro::schedule = 2
1077	Coro::cede = 3	1170	Coro::cede = 3
		1171	Coro::cede_notself = 4
1078	CODE:	1172	CODE:
1079	{	1173	{
1080	struct transfer_args ta;	1174	struct transfer_args ta;
1081		1175
1082	switch (ix)	1176	switch (ix)
1083	{	1177	{
1084	case 0:	1178	case 0:
1085	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1179	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1086	ta.next = 0;	1180	ta.next = 0;
1087	ta.flags = TRANSFER_SET_STACKLEVEL;
1088	break;	1181	break;
1089		1182
1090	case 1:	1183	case 1:
1091	if (items != 3)	1184	if (items != 2)
1092	croak ("Coro::State::transfer (prev,next,flags) expects three arguments, not %d", items);	1185	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1093		1186
1094	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));	1187	prepare_transfer (&ta, ST (0), ST (1));
1095	break;	1188	break;
1096		1189
1097	case 2:	1190	case 2:
1098	prepare_schedule (&ta);	1191	prepare_schedule (&ta);
1099	break;	1192	break;
1100		1193
1101	case 3:	1194	case 3:
1102	prepare_cede (&ta);	1195	prepare_cede (&ta);
1103	break;	1196	break;
		1197
		1198	case 4:
		1199	if (!prepare_cede_notself (&ta))
		1200	XSRETURN_EMPTY;
		1201
		1202	break;
1104	}	1203	}
1105		1204
		1205	BARRIER;
1106	TRANSFER (ta);	1206	TRANSFER (ta);
1107	}	1207	}
1108		1208
1109	void	1209	bool
1110	_clone_state_from (SV dst, SV src)	1210	_destroy (SV *coro_sv)
1111	CODE:	1211	CODE:
1112	{	1212	RETVAL = coro_state_destroy (SvSTATE (coro_sv));
1113	struct coro *coro_src = SvSTATE (src);	1213	OUTPUT:
1114		1214	RETVAL
1115	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
1116
1117	++coro_src->refcnt;
1118	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;
1119	}
1120		1215
1121	void	1216	void
1122	_exit (code)	1217	_exit (code)
1123	int code	1218	int code
1124	PROTOTYPE: $	1219	PROTOTYPE: $
…		…
1161	coro_ready[i] = newAV ();	1256	coro_ready[i] = newAV ();
1162		1257
1163	{	1258	{
1164	SV *sv = perl_get_sv("Coro::API", 1);	1259	SV *sv = perl_get_sv("Coro::API", 1);
1165		1260
1166	coroapi.schedule = api_schedule;	1261	coroapi.schedule = api_schedule;
		1262	coroapi.save = api_save;
1167	coroapi.cede = api_cede;	1263	coroapi.cede = api_cede;
		1264	coroapi.cede_notself = api_cede_notself;
1168	coroapi.ready = api_ready;	1265	coroapi.ready = api_ready;
1169	coroapi.is_ready = api_is_ready;	1266	coroapi.is_ready = api_is_ready;
1170	coroapi.nready = &coro_nready;	1267	coroapi.nready = &coro_nready;
1171	coroapi.current = coro_current;	1268	coroapi.current = coro_current;
1172		1269
1173	GCoroAPI = &coroapi;	1270	GCoroAPI = &coroapi;
1174	sv_setiv (sv, (IV)&coroapi);	1271	sv_setiv (sv, (IV)&coroapi);
1175	SvREADONLY_on (sv);	1272	SvREADONLY_on (sv);
1176	}	1273	}
1177	}	1274	}
		1275
		1276	void
		1277	_set_current (SV *current)
		1278	PROTOTYPE: $
		1279	CODE:
		1280	SvREFCNT_dec (SvRV (coro_current));
		1281	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1178		1282
1179	int	1283	int
1180	prio (Coro::State coro, int newprio = 0)	1284	prio (Coro::State coro, int newprio = 0)
1181	ALIAS:	1285	ALIAS:
1182	nice = 1	1286	nice = 1
…		…
1185	RETVAL = coro->prio;	1289	RETVAL = coro->prio;
1186		1290
1187	if (items > 1)	1291	if (items > 1)
1188	{	1292	{
1189	if (ix)	1293	if (ix)
1190	newprio += coro->prio;	1294	newprio = coro->prio - newprio;
1191		1295
1192	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	1296	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
1193	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	1297	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
1194		1298
1195	coro->prio = newprio;	1299	coro->prio = newprio;
1196	}	1300	}
1197	}	1301	}
		1302	OUTPUT:
		1303	RETVAL
1198		1304
1199	SV *	1305	SV *
1200	ready (SV *self)	1306	ready (SV *self)
1201	PROTOTYPE: $	1307	PROTOTYPE: $
1202	CODE:	1308	CODE:
…		…
1218	CODE:	1324	CODE:
1219	RETVAL = coro_nready;	1325	RETVAL = coro_nready;
1220	OUTPUT:	1326	OUTPUT:
1221	RETVAL	1327	RETVAL
1222		1328
1223	void
1224	_set_current (SV *current)
1225	PROTOTYPE: $
1226	CODE:
1227	SvREFCNT_dec (SvRV (coro_current));
1228	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1229
1230	MODULE = Coro::State PACKAGE = Coro::AIO	1329	MODULE = Coro::State PACKAGE = Coro::AIO
1231		1330
1232	SV *	1331	SV *
1233	_get_state ()	1332	_get_state ()
1234	CODE:	1333	CODE:
1235	{	1334	{
1236	struct {	1335	struct io_state *data;
1237	int errorno;
1238	int laststype;
1239	int laststatval;
1240	Stat_t statcache;
1241	} data;
1242		1336
		1337	RETVAL = newSV (sizeof (struct io_state));
		1338	data = (struct io_state *)SvPVX (RETVAL);
		1339	SvCUR_set (RETVAL, sizeof (struct io_state));
		1340	SvPOK_only (RETVAL);
		1341
1243	data.errorno = errno;	1342	data->errorno = errno;
1244	data.laststype = PL_laststype;	1343	data->laststype = PL_laststype;
1245	data.laststatval = PL_laststatval;	1344	data->laststatval = PL_laststatval;
1246	data.statcache = PL_statcache;	1345	data->statcache = PL_statcache;
1247
1248	RETVAL = newSVpvn ((char *)&data, sizeof data);
1249	}	1346	}
1250	OUTPUT:	1347	OUTPUT:
1251	RETVAL	1348	RETVAL
1252		1349
1253	void	1350	void
1254	_set_state (char *data_)	1351	_set_state (char *data_)
1255	PROTOTYPE: $	1352	PROTOTYPE: $
1256	CODE:	1353	CODE:
1257	{	1354	{
1258	struct {	1355	struct io_state data = (void )data_;
1259	int errorno;
1260	int laststype;
1261	int laststatval;
1262	Stat_t statcache;
1263	} data = (void )data_;
1264		1356
1265	errno = data->errorno;	1357	errno = data->errorno;
1266	PL_laststype = data->laststype;	1358	PL_laststype = data->laststype;
1267	PL_laststatval = data->laststatval;	1359	PL_laststatval = data->laststatval;
1268	PL_statcache = data->statcache;	1360	PL_statcache = data->statcache;
1269	}	1361	}
		1362

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Comparing Coro/Coro/State.xs (file contents): Revision 1.119 by root, Sat Dec 2 15:41:28 2006 UTC vs. Revision 1.133 by root, Thu Jan 4 20:14:19 2007 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.119 by root, Sat Dec 2 15:41:28 2006 UTC vs.
Revision 1.133 by root, Thu Jan 4 20:14:19 2007 UTC