[ViewVC] Diff of: cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.44 by root, Sat Oct 21 23:20:29 2006 UTC vs.
Revision 1.49 by root, Sun Oct 22 13:33:28 2006 UTC

…		…
9		9
10	#include <pthread.h>	10	#include <pthread.h>
11		11
12	#include <stddef.h>	12	#include <stddef.h>
13	#include <errno.h>	13	#include <errno.h>
		14	#include <sys/time.h>
		15	#include <sys/select.h>
14	#include <sys/types.h>	16	#include <sys/types.h>
15	#include <sys/stat.h>	17	#include <sys/stat.h>
16	#include <limits.h>	18	#include <limits.h>
17	#include <unistd.h>	19	#include <unistd.h>
18	#include <fcntl.h>	20	#include <fcntl.h>
…		…
53	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	55	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
54	REQ_FSYNC, REQ_FDATASYNC,	56	REQ_FSYNC, REQ_FDATASYNC,
55	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	57	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
56	REQ_READDIR,	58	REQ_READDIR,
57	REQ_LINK, REQ_SYMLINK,	59	REQ_LINK, REQ_SYMLINK,
		60	REQ_SLEEP,
58	REQ_GROUP,	61	REQ_GROUP,
59	};	62	};
60		63
61	#define AIO_REQ_KLASS "IO::AIO::REQ"	64	#define AIO_REQ_KLASS "IO::AIO::REQ"
62	#define AIO_GRP_KLASS "IO::AIO::GRP"	65	#define AIO_GRP_KLASS "IO::AIO::GRP"
63		66
64	typedef struct aio_cb	67	typedef struct aio_cb
65	{	68	{
66	struct aio_cb grp, grp_prev, *grp_next;
67
68	struct aio_cb *volatile next;	69	struct aio_cb *volatile next;
		70
		71	struct aio_cb grp, grp_prev, grp_next, grp_first;
69		72
70	SV self; / the perl counterpart of this request, if any */	73	SV self; / the perl counterpart of this request, if any */
71		74
72	SV data, callback;	75	SV data, callback;
73	SV fh, fh2;	76	SV fh, fh2;
…		…
85	unsigned char cancelled;	88	unsigned char cancelled;
86	} aio_cb;	89	} aio_cb;
87		90
88	typedef aio_cb *aio_req;	91	typedef aio_cb *aio_req;
89	typedef aio_cb *aio_req_ornot;	92	typedef aio_cb *aio_req_ornot;
90	typedef aio_cb *aio_group;
91		93
92	static int started, wanted;	94	static int started, wanted;
93	static volatile int nreqs;	95	static volatile int nreqs;
94	static int max_outstanding = 1<<30;	96	static int max_outstanding = 1<<30;
95	static int respipe [2];	97	static int respipe [2];
…		…
99	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	101	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
100		102
101	static volatile aio_req reqs, reqe; /* queue start, queue end */	103	static volatile aio_req reqs, reqe; /* queue start, queue end */
102	static volatile aio_req ress, rese; /* queue start, queue end */	104	static volatile aio_req ress, rese; /* queue start, queue end */
103		105
		106	static void req_free (aio_req req);
		107
104	/* must be called at most once */	108	/* must be called at most once */
105	static SV req_sv (aio_req req, const char klass)	109	static SV req_sv (aio_req req, const char klass)
106	{	110	{
		111	if (!req->self)
		112	{
107	req->self = (SV *)newHV ();	113	req->self = (SV *)newHV ();
108	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	114	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
		115	}
109		116
110	return sv_2mortal (sv_bless (newRV_noinc (req->self), gv_stashpv (klass, 1)));	117	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
111	}	118	}
112		119
113	static aio_req SvAIO_REQ (SV sv, const char klass)	120	static aio_req SvAIO_REQ (SV *sv)
114	{	121	{
115	if (!sv_derived_from (sv, klass) \|\| !SvROK (sv))	122	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))
116	croak ("object of class %s expected", klass);	123	croak ("object of class " AIO_REQ_KLASS " expected");
117		124
118	MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	125	MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
119		126
120	return mg ? (aio_req)mg->mg_ptr : 0;	127	return mg ? (aio_req)mg->mg_ptr : 0;
121	}	128	}
122		129
123	static void req_free (aio_req req)	130	static void aio_grp_feed (aio_req grp)
124	{	131	{
125	if (req->self)	132	while (grp->length < grp->fd2)
126	{
127	sv_unmagic (req->self, PERL_MAGIC_ext);
128	SvREFCNT_dec (req->self);
129	}	133	{
		134	int old_len = grp->length;
130		135
131	if (req->data)	136	if (grp->fh2 && SvOK (grp->fh2))
132	SvREFCNT_dec (req->data);	137	{
		138	dSP;
133		139
134	if (req->fh)	140	ENTER;
135	SvREFCNT_dec (req->fh);	141	SAVETMPS;
		142	PUSHMARK (SP);
		143	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
		144	PUTBACK;
		145	call_sv (grp->fh2, G_VOID \| G_EVAL);
		146	SPAGAIN;
		147	FREETMPS;
		148	LEAVE;
		149	}
136		150
137	if (req->fh2)	151	/* stop if no progress has been made */
		152	if (old_len == grp->length)
		153	{
138	SvREFCNT_dec (req->fh2);	154	SvREFCNT_dec (grp->fh2);
139		155	grp->fh2 = 0;
140	if (req->statdata)	156	break;
141	Safefree (req->statdata);	157	}
142		158	}
143	if (req->callback)
144	SvREFCNT_dec (req->callback);
145
146	if (req->type == REQ_READDIR && req->result >= 0)
147	free (req->data2ptr);
148
149	Safefree (req);
150	}	159	}
151		160
152	static void	161	static void poll_wait ()
153	poll_wait ()
154	{	162	{
155	if (nreqs && !ress)	163	if (nreqs && !ress)
156	{	164	{
157	fd_set rfd;	165	fd_set rfd;
158	FD_ZERO(&rfd);	166	FD_ZERO(&rfd);
…		…
160		168
161	select (respipe [0] + 1, &rfd, 0, 0, 0);	169	select (respipe [0] + 1, &rfd, 0, 0, 0);
162	}	170	}
163	}	171	}
164		172
165	static int	173	static void req_invoke (aio_req req)
166	poll_cb ()	174	{
		175	dSP;
		176	int errorno = errno;
		177
		178	if (req->cancelled \|\| !SvOK (req->callback))
		179	return;
		180
		181	errno = req->errorno;
		182
		183	ENTER;
		184	SAVETMPS;
		185	PUSHMARK (SP);
		186	EXTEND (SP, 1);
		187
		188	switch (req->type)
		189	{
		190	case REQ_READDIR:
		191	{
		192	SV *rv = &PL_sv_undef;
		193
		194	if (req->result >= 0)
		195	{
		196	char *buf = req->data2ptr;
		197	AV *av = newAV ();
		198
		199	while (req->result)
		200	{
		201	SV *sv = newSVpv (buf, 0);
		202
		203	av_push (av, sv);
		204	buf += SvCUR (sv) + 1;
		205	req->result--;
		206	}
		207
		208	rv = sv_2mortal (newRV_noinc ((SV *)av));
		209	}
		210
		211	PUSHs (rv);
		212	}
		213	break;
		214
		215	case REQ_OPEN:
		216	{
		217	/* convert fd to fh */
		218	SV *fh;
		219
		220	PUSHs (sv_2mortal (newSViv (req->result)));
		221	PUTBACK;
		222	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
		223	SPAGAIN;
		224
		225	fh = SvREFCNT_inc (POPs);
		226
		227	PUSHMARK (SP);
		228	XPUSHs (sv_2mortal (fh));
		229	}
		230	break;
		231
		232	case REQ_GROUP:
		233	req->fd = 2; /* mark group as finished */
		234
		235	if (req->data)
		236	{
		237	int i;
		238	AV av = (AV )req->data;
		239
		240	EXTEND (SP, AvFILL (av) + 1);
		241	for (i = 0; i <= AvFILL (av); ++i)
		242	PUSHs (*av_fetch (av, i, 0));
		243	}
		244	break;
		245
		246	case REQ_SLEEP:
		247	break;
		248
		249	default:
		250	PUSHs (sv_2mortal (newSViv (req->result)));
		251	break;
		252	}
		253
		254
		255	PUTBACK;
		256	call_sv (req->callback, G_VOID \| G_EVAL);
		257	SPAGAIN;
		258
		259	if (SvTRUE (ERRSV))
		260	{
		261	req_free (req);
		262	croak (0);
		263	}
		264
		265	FREETMPS;
		266	LEAVE;
		267
		268	errno = errorno;
		269	}
		270
		271	static void req_free (aio_req req)
		272	{
		273	if (req->grp)
		274	{
		275	aio_req grp = req->grp;
		276
		277	/* unlink request */
		278	if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
		279	if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
		280
		281	if (grp->grp_first == req)
		282	grp->grp_first = req->grp_next;
		283
		284	--grp->length;
		285
		286	/* call feeder, if applicable */
		287	aio_grp_feed (grp);
		288
		289	/* finish, if done */
		290	if (!grp->length && grp->fd)
		291	{
		292	req_invoke (grp);
		293	req_free (grp);
		294	}
		295	}
		296
		297	if (req->self)
		298	{
		299	sv_unmagic (req->self, PERL_MAGIC_ext);
		300	SvREFCNT_dec (req->self);
		301	}
		302
		303	SvREFCNT_dec (req->data);
		304	SvREFCNT_dec (req->fh);
		305	SvREFCNT_dec (req->fh2);
		306	SvREFCNT_dec (req->callback);
		307	Safefree (req->statdata);
		308
		309	if (req->type == REQ_READDIR && req->result >= 0)
		310	free (req->data2ptr);
		311
		312	Safefree (req);
		313	}
		314
		315	static void req_cancel (aio_req req)
		316	{
		317	req->cancelled = 1;
		318
		319	if (req->type == REQ_GROUP)
		320	{
		321	aio_req sub;
		322
		323	for (sub = req->grp_first; sub; sub = sub->grp_next)
		324	req_cancel (sub);
		325	}
		326	}
		327
		328	static int poll_cb ()
167	{	329	{
168	dSP;	330	dSP;
169	int count = 0;	331	int count = 0;
170	int do_croak = 0;	332	int do_croak = 0;
171	aio_req req;	333	aio_req req;
…		…
197		359
198	nreqs--;	360	nreqs--;
199		361
200	if (req->type == REQ_QUIT)	362	if (req->type == REQ_QUIT)
201	started--;	363	started--;
		364	else if (req->type == REQ_GROUP && req->length)
		365	{
		366	req->fd = 1; /* mark request as delayed */
		367	continue;
		368	}
202	else	369	else
203	{	370	{
204	int errorno = errno;
205	errno = req->errorno;
206
207	if (req->type == REQ_READ)	371	if (req->type == REQ_READ)
208	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));	372	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
209		373
210	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))	374	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
211	SvREADONLY_off (req->data);	375	SvREADONLY_off (req->data);
…		…
215	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	379	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
216	PL_laststatval = req->result;	380	PL_laststatval = req->result;
217	PL_statcache = *(req->statdata);	381	PL_statcache = *(req->statdata);
218	}	382	}
219		383
220	ENTER;	384	req_invoke (req);
221	PUSHMARK (SP);
222		385
223	if (req->type == REQ_READDIR)
224	{
225	SV *rv = &PL_sv_undef;
226
227	if (req->result >= 0)
228	{
229	char *buf = req->data2ptr;
230	AV *av = newAV ();
231
232	while (req->result)
233	{
234	SV *sv = newSVpv (buf, 0);
235
236	av_push (av, sv);
237	buf += SvCUR (sv) + 1;
238	req->result--;
239	}
240
241	rv = sv_2mortal (newRV_noinc ((SV *)av));
242	}
243
244	XPUSHs (rv);
245	}
246	else
247	{
248	XPUSHs (sv_2mortal (newSViv (req->result)));
249
250	if (req->type == REQ_OPEN)
251	{
252	/* convert fd to fh */
253	SV *fh;
254
255	PUTBACK;
256	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
257	SPAGAIN;
258
259	fh = SvREFCNT_inc (POPs);
260
261	PUSHMARK (SP);
262	XPUSHs (sv_2mortal (fh));
263	}
264	}
265
266	if (SvOK (req->callback) && !req->cancelled)
267	{
268	PUTBACK;
269	call_sv (req->callback, G_VOID \| G_EVAL);
270	SPAGAIN;
271
272	if (SvTRUE (ERRSV))
273	{
274	req_free (req);
275	croak (0);
276	}
277	}
278
279	LEAVE;
280
281	errno = errorno;
282	count++;	386	count++;
283	}	387	}
284		388
285	req_free (req);	389	req_free (req);
286	}	390	}
…		…
288	return count;	392	return count;
289	}	393	}
290		394
291	static void aio_proc(void arg);	395	static void aio_proc(void arg);
292		396
293	static void
294	start_thread (void)	397	static void start_thread (void)
295	{	398	{
296	sigset_t fullsigset, oldsigset;	399	sigset_t fullsigset, oldsigset;
297	pthread_t tid;	400	pthread_t tid;
298	pthread_attr_t attr;	401	pthread_attr_t attr;
299		402
…		…
308	started++;	411	started++;
309		412
310	sigprocmask (SIG_SETMASK, &oldsigset, 0);	413	sigprocmask (SIG_SETMASK, &oldsigset, 0);
311	}	414	}
312		415
313	static void
314	req_send (aio_req req)	416	static void req_send (aio_req req)
315	{	417	{
316	while (started < wanted && nreqs >= started)	418	while (started < wanted && nreqs >= started)
317	start_thread ();	419	start_thread ();
318		420
319	nreqs++;	421	nreqs++;
…		…
343		445
344	poll_wait ();	446	poll_wait ();
345	}	447	}
346	}	448	}
347		449
348	static void	450	static void end_thread (void)
349	end_thread (void)
350	{	451	{
351	aio_req req;	452	aio_req req;
352	Newz (0, req, 1, aio_cb);	453	Newz (0, req, 1, aio_cb);
353	req->type = REQ_QUIT;	454	req->type = REQ_QUIT;
354		455
…		…
405	* normal read/write by using a mutex. slows down execution a lot,	506	* normal read/write by using a mutex. slows down execution a lot,
406	* but that's your problem, not mine.	507	* but that's your problem, not mine.
407	*/	508	*/
408	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	509	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
409		510
410	static ssize_t	511	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
411	pread (int fd, void *buf, size_t count, off_t offset)
412	{	512	{
413	ssize_t res;	513	ssize_t res;
414	off_t ooffset;	514	off_t ooffset;
415		515
416	pthread_mutex_lock (&preadwritelock);	516	pthread_mutex_lock (&preadwritelock);
…		…
421	pthread_mutex_unlock (&preadwritelock);	521	pthread_mutex_unlock (&preadwritelock);
422		522
423	return res;	523	return res;
424	}	524	}
425		525
426	static ssize_t
427	pwrite (int fd, void *buf, size_t count, off_t offset)	526	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
428	{	527	{
429	ssize_t res;	528	ssize_t res;
430	off_t ooffset;	529	off_t ooffset;
431		530
432	pthread_mutex_lock (&preadwritelock);	531	pthread_mutex_lock (&preadwritelock);
…		…
445	#endif	544	#endif
446		545
447	#if !HAVE_READAHEAD	546	#if !HAVE_READAHEAD
448	# define readahead aio_readahead	547	# define readahead aio_readahead
449		548
450	static ssize_t
451	readahead (int fd, off_t offset, size_t count)	549	static ssize_t readahead (int fd, off_t offset, size_t count)
452	{	550	{
453	char readahead_buf[4096];	551	char readahead_buf[4096];
454		552
455	while (count > 0)	553	while (count > 0)
456	{	554	{
…		…
468	#if !HAVE_READDIR_R	566	#if !HAVE_READDIR_R
469	# define readdir_r aio_readdir_r	567	# define readdir_r aio_readdir_r
470		568
471	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	569	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
472		570
473	static int
474	readdir_r (DIR dirp, struct dirent ent, struct dirent **res)	571	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)
475	{	572	{
476	struct dirent *e;	573	struct dirent *e;
477	int errorno;	574	int errorno;
478		575
479	pthread_mutex_lock (&readdirlock);	576	pthread_mutex_lock (&readdirlock);
…		…
495	return e ? 0 : -1;	592	return e ? 0 : -1;
496	}	593	}
497	#endif	594	#endif
498		595
499	/* sendfile always needs emulation */	596	/* sendfile always needs emulation */
500	static ssize_t
501	sendfile_ (int ofd, int ifd, off_t offset, size_t count)	597	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
502	{	598	{
503	ssize_t res;	599	ssize_t res;
504		600
505	if (!count)	601	if (!count)
506	return 0;	602	return 0;
…		…
588		684
589	return res;	685	return res;
590	}	686	}
591		687
592	/* read a full directory */	688	/* read a full directory */
593	static int
594	scandir_ (const char path, void *namesp)	689	static int scandir_ (const char path, void *namesp)
595	{	690	{
596	DIR *dirp = opendir (path);	691	DIR *dirp = opendir (path);
597	union	692	union
598	{	693	{
599	struct dirent d;	694	struct dirent d;
…		…
653	return res;	748	return res;
654	}	749	}
655		750
656	/*****************************************************************************/	751	/*****************************************************************************/
657		752
658	static void *
659	aio_proc (void *thr_arg)	753	static void aio_proc (void thr_arg)
660	{	754	{
661	aio_req req;	755	aio_req req;
662	int type;	756	int type;
663		757
664	do	758	do
…		…
707	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	801	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
708		802
709	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	803	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
710	case REQ_FSYNC: req->result = fsync (req->fd); break;	804	case REQ_FSYNC: req->result = fsync (req->fd); break;
711	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;	805	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
		806
		807	case REQ_SLEEP:
		808	{
		809	struct timeval tv;
		810
		811	tv.tv_sec = req->fd;
		812	tv.tv_usec = req->fd2;
		813
		814	req->result = select (0, 0, 0, 0, &tv);
		815	}
712		816
713	case REQ_QUIT:	817	case REQ_QUIT:
714	break;	818	break;
715		819
716	default:	820	default:
…		…
1073		1177
1074	REQ_SEND;	1178	REQ_SEND;
1075	}	1179	}
1076		1180
1077	void	1181	void
		1182	aio_sleep (delay,callback=&PL_sv_undef)
		1183	double delay
		1184	SV * callback
		1185	PPCODE:
		1186	{
		1187	dREQ;
		1188
		1189	req->type = REQ_SLEEP;
		1190	req->fd = delay < 0. ? 0 : delay;
		1191	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
		1192
		1193	REQ_SEND;
		1194	}
		1195
		1196	void
1078	aio_group (callback=&PL_sv_undef)	1197	aio_group (callback=&PL_sv_undef)
1079	SV * callback	1198	SV * callback
1080	PROTOTYPE: ;&	1199	PROTOTYPE: ;$
1081	PPCODE:	1200	PPCODE:
1082	{	1201	{
1083	dREQ;	1202	dREQ;
1084	req->type = REQ_GROUP;	1203	req->type = REQ_GROUP;
		1204	req_send (req);
1085	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1205	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1086	}	1206	}
1087		1207
1088	void	1208	void
1089	flush ()	1209	flush ()
…		…
1134	CODE:	1254	CODE:
1135	RETVAL = nreqs;	1255	RETVAL = nreqs;
1136	OUTPUT:	1256	OUTPUT:
1137	RETVAL	1257	RETVAL
1138		1258
		1259	PROTOTYPES: DISABLE
		1260
1139	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1261	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1140		1262
1141	void	1263	void
1142	cancel (aio_req_ornot req)	1264	cancel (aio_req_ornot req)
1143	PROTOTYPE:	1265	PROTOTYPE:
1144	CODE:	1266	CODE:
1145	req->cancelled = 1;	1267	req_cancel (req);
1146		1268
		1269	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
		1270
		1271	void
		1272	add (aio_req grp, ...)
		1273	PPCODE:
		1274	{
		1275	int i;
		1276
		1277	if (grp->fd == 2)
		1278	croak ("cannot add requests to IO::AIO::GRP after the group finished");
		1279
		1280	for (i = 1; i < items; ++i )
		1281	{
		1282	if (GIMME_V != G_VOID)
		1283	XPUSHs (sv_2mortal (newSVsv (ST (i))));
		1284
		1285	aio_req req = SvAIO_REQ (ST (i));
		1286
		1287	if (req)
		1288	{
		1289	++grp->length;
		1290	req->grp = grp;
		1291
		1292	req->grp_prev = 0;
		1293	req->grp_next = grp->grp_first;
		1294
		1295	if (grp->grp_first)
		1296	grp->grp_first->grp_prev = req;
		1297
		1298	grp->grp_first = req;
		1299	}
		1300	}
		1301	}
		1302
		1303	void
		1304	result (aio_req grp, ...)
		1305	CODE:
		1306	{
		1307	int i;
		1308	AV *av = newAV ();
		1309
		1310	for (i = 1; i < items; ++i )
		1311	av_push (av, newSVsv (ST (i)));
		1312
		1313	SvREFCNT_dec (grp->data);
		1314	grp->data = (SV *)av;
		1315	}
		1316
		1317	void
		1318	feeder_limit (aio_req grp, int limit)
		1319	CODE:
		1320	grp->fd2 = limit;
		1321	aio_grp_feed (grp);
		1322
		1323	void
		1324	set_feeder (aio_req grp, SV *callback=&PL_sv_undef)
		1325	CODE:
		1326	{
		1327	SvREFCNT_dec (grp->fh2);
		1328	grp->fh2 = newSVsv (callback);
		1329
		1330	if (grp->fd2 <= 0)
		1331	grp->fd2 = 2;
		1332
		1333	aio_grp_feed (grp);
		1334	}
		1335

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.44 by root, Sat Oct 21 23:20:29 2006 UTC vs. Revision 1.49 by root, Sun Oct 22 13:33:28 2006 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.44 by root, Sat Oct 21 23:20:29 2006 UTC vs.
Revision 1.49 by root, Sun Oct 22 13:33:28 2006 UTC