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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.45 by root, Sun Oct 22 00:19:05 2006 UTC vs.
Revision 1.64 by root, Mon Oct 23 23:54:41 2006 UTC

…		…
		1	#if __linux
		2	# define _GNU_SOURCE
		3	#endif
		4
1	#define _REENTRANT 1	5	#define _REENTRANT 1
		6
2	#include <errno.h>	7	#include <errno.h>
3		8
4	#include "EXTERN.h"	9	#include "EXTERN.h"
5	#include "perl.h"	10	#include "perl.h"
6	#include "XSUB.h"	11	#include "XSUB.h"
55	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	60	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
56	REQ_FSYNC, REQ_FDATASYNC,	61	REQ_FSYNC, REQ_FDATASYNC,
57	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	62	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
58	REQ_READDIR,	63	REQ_READDIR,
59	REQ_LINK, REQ_SYMLINK,	64	REQ_LINK, REQ_SYMLINK,
		65	REQ_GROUP, REQ_NOP,
60	REQ_SLEEP,	66	REQ_SLEEP,
61	REQ_GROUP,
62	};	67	};
63		68
64	#define AIO_REQ_KLASS "IO::AIO::REQ"	69	#define AIO_REQ_KLASS "IO::AIO::REQ"
65	#define AIO_GRP_KLASS "IO::AIO::GRP"	70	#define AIO_GRP_KLASS "IO::AIO::GRP"
66		71
67	typedef struct aio_cb	72	typedef struct aio_cb
68	{	73	{
69	struct aio_cb grp, grp_prev, *grp_next;
70
71	struct aio_cb *volatile next;	74	struct aio_cb *volatile next;
72
73	SV self; / the perl counterpart of this request, if any */
74		75
75	SV data, callback;	76	SV data, callback;
76	SV fh, fh2;	77	SV fh, fh2;
77	void dataptr, data2ptr;	78	void dataptr, data2ptr;
78	Stat_t *statdata;	79	Stat_t *statdata;
79	off_t offset;	80	off_t offset;
80	size_t length;	81	size_t length;
81	ssize_t result;	82	ssize_t result;
82		83
		84	STRLEN dataoffset;
83	int type;	85	int type;
84	int fd, fd2;	86	int fd, fd2;
85	int errorno;	87	int errorno;
86	STRLEN dataoffset;
87	mode_t mode; /* open */	88	mode_t mode; /* open */
		89
88	unsigned char cancelled;	90	unsigned char flags;
		91	unsigned char pri;
		92
		93	SV self; / the perl counterpart of this request, if any */
		94	struct aio_cb grp, grp_prev, grp_next, grp_first;
89	} aio_cb;	95	} aio_cb;
		96
		97	enum {
		98	FLAG_CANCELLED = 0x01,
		99	};
90		100
91	typedef aio_cb *aio_req;	101	typedef aio_cb *aio_req;
92	typedef aio_cb *aio_req_ornot;	102	typedef aio_cb *aio_req_ornot;
93	typedef aio_cb *aio_group;	103
		104	enum {
		105	PRI_MIN = -4,
		106	PRI_MAX = 4,
		107
		108	DEFAULT_PRI = 0,
		109	PRI_BIAS = -PRI_MIN,
		110	};
		111
		112	static int next_pri = DEFAULT_PRI + PRI_BIAS;
94		113
95	static int started, wanted;	114	static int started, wanted;
96	static volatile int nreqs;	115	static volatile int nreqs;
97	static int max_outstanding = 1<<30;	116	static int max_outstanding = 1<<30;
98	static int respipe [2];	117	static int respipe [2];
99		118
		119	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
		120	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
		121	#else
		122	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
		123	#endif
		124
100	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	125	static pthread_mutex_t reslock = AIO_MUTEX_INIT;
101	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	126	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
102	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	127	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
103		128
104	static volatile aio_req reqs, reqe; /* queue start, queue end */	129	static volatile aio_req reqs, reqe; /* queue start, queue end */
105	static volatile aio_req ress, rese; /* queue start, queue end */	130	static volatile aio_req ress, rese; /* queue start, queue end */
106		131
		132	static void req_invoke (aio_req req);
107	static void req_free (aio_req req);	133	static void req_free (aio_req req);
108		134
109	/* must be called at most once */	135	/* must be called at most once */
110	static SV req_sv (aio_req req, const char klass)	136	static SV req_sv (aio_req req, const char klass)
111	{	137	{
		138	if (!req->self)
		139	{
112	req->self = (SV *)newHV ();	140	req->self = (SV *)newHV ();
113	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	141	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
		142	}
114		143
115	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	144	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
116	}	145	}
117		146
118	static aio_req SvAIO_REQ (SV *sv)	147	static aio_req SvAIO_REQ (SV *sv)
119	{	148	{
		149	MAGIC *mg;
		150
120	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))	151	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))
121	croak ("object of class " AIO_REQ_KLASS " expected");	152	croak ("object of class " AIO_REQ_KLASS " expected");
122		153
123	MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	154	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
124		155
125	return mg ? (aio_req)mg->mg_ptr : 0;	156	return mg ? (aio_req)mg->mg_ptr : 0;
126	}	157	}
127		158
		159	static void aio_grp_feed (aio_req grp)
		160	{
		161	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))
		162	{
		163	int old_len = grp->length;
		164
		165	if (grp->fh2 && SvOK (grp->fh2))
		166	{
		167	dSP;
		168
		169	ENTER;
		170	SAVETMPS;
		171	PUSHMARK (SP);
		172	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
		173	PUTBACK;
		174	call_sv (grp->fh2, G_VOID \| G_EVAL);
		175	SPAGAIN;
		176	FREETMPS;
		177	LEAVE;
		178	}
		179
		180	/* stop if no progress has been made */
		181	if (old_len == grp->length)
		182	{
		183	SvREFCNT_dec (grp->fh2);
		184	grp->fh2 = 0;
		185	break;
		186	}
		187	}
		188	}
		189
		190	static void aio_grp_dec (aio_req grp)
		191	{
		192	--grp->length;
		193
		194	/* call feeder, if applicable */
		195	aio_grp_feed (grp);
		196
		197	/* finish, if done */
		198	if (!grp->length && grp->fd)
		199	{
		200	req_invoke (grp);
		201	req_free (grp);
		202	}
		203	}
		204
128	static void poll_wait ()	205	static void poll_wait ()
129	{	206	{
130	if (nreqs && !ress)
131	{
132	fd_set rfd;	207	fd_set rfd;
		208
		209	while (nreqs)
		210	{
		211	aio_req req;
		212	#if !(__x86 \|\| __x86_64) /* safe without sempahore on this archs */
		213	pthread_mutex_lock (&reslock);
		214	#endif
		215	req = ress;
		216	#if !(__x86 \|\| __x86_64) /* safe without sempahore on this archs */
		217	pthread_mutex_unlock (&reslock);
		218	#endif
		219
		220	if (req)
		221	return;
		222
133	FD_ZERO(&rfd);	223	FD_ZERO(&rfd);
134	FD_SET(respipe [0], &rfd);	224	FD_SET(respipe [0], &rfd);
135		225
136	select (respipe [0] + 1, &rfd, 0, 0, 0);	226	select (respipe [0] + 1, &rfd, 0, 0, 0);
137	}	227	}
…		…
140	static void req_invoke (aio_req req)	230	static void req_invoke (aio_req req)
141	{	231	{
142	dSP;	232	dSP;
143	int errorno = errno;	233	int errorno = errno;
144		234
145	if (req->cancelled \|\| !SvOK (req->callback))	235	if (req->flags & FLAG_CANCELLED \|\| !SvOK (req->callback))
146	return;	236	return;
147		237
148	errno = req->errorno;	238	errno = req->errorno;
149		239
150	ENTER;	240	ENTER;
		241	SAVETMPS;
151	PUSHMARK (SP);	242	PUSHMARK (SP);
		243	EXTEND (SP, 1);
152		244
153	switch (req->type)	245	switch (req->type)
154	{	246	{
155	case REQ_READDIR:	247	case REQ_READDIR:
156	{	248	{
…		…
171	}	263	}
172		264
173	rv = sv_2mortal (newRV_noinc ((SV *)av));	265	rv = sv_2mortal (newRV_noinc ((SV *)av));
174	}	266	}
175		267
176	XPUSHs (rv);	268	PUSHs (rv);
177	}	269	}
178	break;	270	break;
179		271
180	case REQ_OPEN:	272	case REQ_OPEN:
181	{	273	{
182	/* convert fd to fh */	274	/* convert fd to fh */
183	SV *fh;	275	SV *fh;
184		276
185	XPUSHs (sv_2mortal (newSViv (req->result)));	277	PUSHs (sv_2mortal (newSViv (req->result)));
186	PUTBACK;	278	PUTBACK;
187	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);	279	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
188	SPAGAIN;	280	SPAGAIN;
189		281
190	fh = SvREFCNT_inc (POPs);	282	fh = SvREFCNT_inc (POPs);
…		…
192	PUSHMARK (SP);	284	PUSHMARK (SP);
193	XPUSHs (sv_2mortal (fh));	285	XPUSHs (sv_2mortal (fh));
194	}	286	}
195	break;	287	break;
196		288
		289	case REQ_GROUP:
		290	req->fd = 2; /* mark group as finished */
		291
		292	if (req->data)
		293	{
		294	int i;
		295	AV av = (AV )req->data;
		296
		297	EXTEND (SP, AvFILL (av) + 1);
		298	for (i = 0; i <= AvFILL (av); ++i)
		299	PUSHs (*av_fetch (av, i, 0));
		300	}
		301	break;
		302
		303	case REQ_NOP:
197	case REQ_SLEEP:	304	case REQ_SLEEP:
198	case REQ_GROUP:
199	break;	305	break;
200		306
201	default:	307	default:
202	XPUSHs (sv_2mortal (newSViv (req->result)));	308	PUSHs (sv_2mortal (newSViv (req->result)));
203	break;	309	break;
204	}	310	}
205		311
206		312
207	PUTBACK;	313	PUTBACK;
208	call_sv (req->callback, G_VOID \| G_EVAL);	314	call_sv (req->callback, G_VOID \| G_EVAL);
209	SPAGAIN;	315	SPAGAIN;
210		316
		317	FREETMPS;
		318	LEAVE;
		319
		320	errno = errorno;
		321
211	if (SvTRUE (ERRSV))	322	if (SvTRUE (ERRSV))
212	{	323	{
213	req_free (req);	324	req_free (req);
214	croak (0);	325	croak (0);
215	}	326	}
216
217	LEAVE;
218
219	errno = errorno;
220	}	327	}
221		328
222	static void req_free (aio_req req)	329	static void req_free (aio_req req)
223	{	330	{
224	if (req->grp)	331	if (req->grp)
225	{	332	{
226	aio_req grp = req->grp;	333	aio_req grp = req->grp;
227		334
228	/* unlink request */	335	/* unlink request */
229	req->grp_next->grp_prev = req->grp_prev;	336	if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
230	req->grp_prev->grp_next = req->grp_next;	337	if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
231		338
232	if (grp->grp_next == grp)	339	if (grp->grp_first == req)
233	{	340	grp->grp_first = req->grp_next;
234	req_invoke (grp);	341
235	req_free (grp);	342	aio_grp_dec (grp);
236	}
237	}	343	}
238		344
239	if (req->self)	345	if (req->self)
240	{	346	{
241	sv_unmagic (req->self, PERL_MAGIC_ext);	347	sv_unmagic (req->self, PERL_MAGIC_ext);
242	SvREFCNT_dec (req->self);	348	SvREFCNT_dec (req->self);
243	}	349	}
244		350
245	if (req->data)
246	SvREFCNT_dec (req->data);	351	SvREFCNT_dec (req->data);
247
248	if (req->fh)
249	SvREFCNT_dec (req->fh);	352	SvREFCNT_dec (req->fh);
250
251	if (req->fh2)
252	SvREFCNT_dec (req->fh2);	353	SvREFCNT_dec (req->fh2);
253
254	if (req->statdata)
255	Safefree (req->statdata);
256
257	if (req->callback)
258	SvREFCNT_dec (req->callback);	354	SvREFCNT_dec (req->callback);
		355	Safefree (req->statdata);
259		356
260	if (req->type == REQ_READDIR && req->result >= 0)	357	if (req->type == REQ_READDIR && req->result >= 0)
261	free (req->data2ptr);	358	free (req->data2ptr);
262		359
263	Safefree (req);	360	Safefree (req);
264	}	361	}
265		362
266	static void req_cancel (aio_req req)	363	static void req_cancel (aio_req req)
267	{	364	{
268	req->cancelled = 1;	365	req->flags \|= FLAG_CANCELLED;
269		366
270	if (req->type == REQ_GROUP)	367	if (req->type == REQ_GROUP)
271	{	368	{
272	aio_req sub;	369	aio_req sub;
273		370
274	for (sub = req->grp_next; sub != req; sub = sub->grp_next)	371	for (sub = req->grp_first; sub; sub = sub->grp_next)
275	req_cancel (sub);	372	req_cancel (sub);
276	}	373	}
277	}	374	}
278		375
279	static int poll_cb ()	376	static int poll_cb ()
…		…
306	pthread_mutex_unlock (&reslock);	403	pthread_mutex_unlock (&reslock);
307		404
308	if (!req)	405	if (!req)
309	break;	406	break;
310		407
311	nreqs--;	408	--nreqs;
312		409
313	if (req->type == REQ_QUIT)	410	if (req->type == REQ_QUIT)
314	started--;	411	started--;
315	else if (req->type == REQ_GROUP && req->grp_next != req)	412	else if (req->type == REQ_GROUP && req->length)
		413	{
		414	req->fd = 1; /* mark request as delayed */
316	continue;	415	continue;
		416	}
317	else	417	else
318	{	418	{
319	if (req->type == REQ_READ)	419	if (req->type == REQ_READ)
320	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));	420	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
321		421
…		…
364	static void req_send (aio_req req)	464	static void req_send (aio_req req)
365	{	465	{
366	while (started < wanted && nreqs >= started)	466	while (started < wanted && nreqs >= started)
367	start_thread ();	467	start_thread ();
368		468
369	nreqs++;	469	++nreqs;
370		470
371	pthread_mutex_lock (&reqlock);	471	pthread_mutex_lock (&reqlock);
372		472
373	req->next = 0;	473	req->next = 0;
374		474
…		…
724	}	824	}
725		825
726	pthread_mutex_unlock (&reqlock);	826	pthread_mutex_unlock (&reqlock);
727		827
728	errno = 0; /* strictly unnecessary */	828	errno = 0; /* strictly unnecessary */
		829	type = req->type; /* remember type for QUIT check */
729		830
730	if (!req->cancelled)	831	if (!(req->flags & FLAG_CANCELLED))
731	switch (req->type)	832	switch (type)
732	{	833	{
733	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	834	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
734	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	835	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
735		836
736	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	837	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
…		…
760	tv.tv_usec = req->fd2;	861	tv.tv_usec = req->fd2;
761		862
762	req->result = select (0, 0, 0, 0, &tv);	863	req->result = select (0, 0, 0, 0, &tv);
763	}	864	}
764		865
		866	case REQ_GROUP:
		867	case REQ_NOP:
765	case REQ_QUIT:	868	case REQ_QUIT:
766	break;	869	break;
767		870
768	default:	871	default:
769	req->result = ENOSYS;	872	req->result = ENOSYS;
…		…
853	atfork_parent ();	956	atfork_parent ();
854	}	957	}
855		958
856	#define dREQ \	959	#define dREQ \
857	aio_req req; \	960	aio_req req; \
		961	int req_pri = next_pri; \
		962	next_pri = DEFAULT_PRI + PRI_BIAS; \
858	\	963	\
859	if (SvOK (callback) && !SvROK (callback)) \	964	if (SvOK (callback) && !SvROK (callback)) \
860	croak ("callback must be undef or of reference type"); \	965	croak ("callback must be undef or of reference type"); \
861	\	966	\
862	Newz (0, req, 1, aio_cb); \	967	Newz (0, req, 1, aio_cb); \
863	if (!req) \	968	if (!req) \
864	croak ("out of memory during aio_req allocation"); \	969	croak ("out of memory during aio_req allocation"); \
865	\	970	\
866	req->callback = newSVsv (callback)	971	req->callback = newSVsv (callback); \
		972	req->pri = req_pri
867		973
868	#define REQ_SEND \	974	#define REQ_SEND \
869	req_send (req); \	975	req_send (req); \
870	\	976	\
871	if (GIMME_V != G_VOID) \	977	if (GIMME_V != G_VOID) \
…		…
1142	}	1248	}
1143		1249
1144	void	1250	void
1145	aio_group (callback=&PL_sv_undef)	1251	aio_group (callback=&PL_sv_undef)
1146	SV * callback	1252	SV * callback
1147	PROTOTYPE: ;&	1253	PROTOTYPE: ;$
1148	PPCODE:	1254	PPCODE:
1149	{	1255	{
1150	dREQ;	1256	dREQ;
		1257
1151	req->type = REQ_GROUP;	1258	req->type = REQ_GROUP;
1152	req->grp_next = req;
1153	req->grp_prev = req;
1154
1155	req_send (req);	1259	req_send (req);
		1260
1156	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1261	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1157	}	1262	}
		1263
		1264	void
		1265	aio_nop (callback=&PL_sv_undef)
		1266	SV * callback
		1267	PPCODE:
		1268	{
		1269	dREQ;
		1270
		1271	req->type = REQ_NOP;
		1272
		1273	REQ_SEND;
		1274	}
		1275
		1276	#if 0
		1277
		1278	void
		1279	aio_pri (int pri = DEFAULT_PRI)
		1280	CODE:
		1281	if (pri < PRI_MIN) pri = PRI_MIN;
		1282	if (pri > PRI_MAX) pri = PRI_MAX;
		1283	next_pri = pri + PRI_BIAS;
		1284
		1285	#endif
1158		1286
1159	void	1287	void
1160	flush ()	1288	flush ()
1161	PROTOTYPE:	1289	PROTOTYPE:
1162	CODE:	1290	CODE:
…		…
1205	CODE:	1333	CODE:
1206	RETVAL = nreqs;	1334	RETVAL = nreqs;
1207	OUTPUT:	1335	OUTPUT:
1208	RETVAL	1336	RETVAL
1209		1337
		1338	PROTOTYPES: DISABLE
		1339
1210	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1340	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1211		1341
1212	void	1342	void
1213	cancel (aio_req_ornot req)	1343	cancel (aio_req_ornot req)
1214	PROTOTYPE:	1344	PROTOTYPE:
1215	CODE:	1345	CODE:
1216	req_cancel (req);	1346	req_cancel (req);
1217		1347
		1348	void
		1349	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
		1350	CODE:
		1351	SvREFCNT_dec (req->callback);
		1352	req->callback = newSVsv (callback);
		1353
1218	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1354	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1219		1355
1220	void	1356	void
1221	add (aio_req grp, ...)	1357	add (aio_req grp, ...)
1222	PROTOTYPE: $;@
1223	PPCODE:	1358	PPCODE:
1224	{	1359	{
1225	int i;	1360	int i;
		1361	aio_req req;
		1362
		1363	if (grp->fd == 2)
		1364	croak ("cannot add requests to IO::AIO::GRP after the group finished");
1226		1365
1227	for (i = 1; i < items; ++i )	1366	for (i = 1; i < items; ++i )
1228	{	1367	{
1229	aio_req req = SvAIO_REQ (ST (i));
1230
1231	req->grp_prev = grp;
1232	req->grp_next = grp->grp_next;
1233	grp->grp_next->grp_prev = req;
1234	grp->grp_next = req;
1235
1236	req->grp = grp;
1237
1238	if (GIMME_V != G_VOID)	1368	if (GIMME_V != G_VOID)
1239	XPUSHs (sv_2mortal (newSVsv (ST (i))));	1369	XPUSHs (sv_2mortal (newSVsv (ST (i))));
		1370
		1371	req = SvAIO_REQ (ST (i));
		1372
		1373	if (req)
		1374	{
		1375	++grp->length;
		1376	req->grp = grp;
		1377
		1378	req->grp_prev = 0;
		1379	req->grp_next = grp->grp_first;
		1380
		1381	if (grp->grp_first)
		1382	grp->grp_first->grp_prev = req;
		1383
		1384	grp->grp_first = req;
		1385	}
1240	}	1386	}
1241	}	1387	}
1242		1388
		1389	void
		1390	result (aio_req grp, ...)
		1391	CODE:
		1392	{
		1393	int i;
		1394	AV *av = newAV ();
		1395
		1396	for (i = 1; i < items; ++i )
		1397	av_push (av, newSVsv (ST (i)));
		1398
		1399	SvREFCNT_dec (grp->data);
		1400	grp->data = (SV *)av;
		1401	}
		1402
		1403	void
		1404	feed_limit (aio_req grp, int limit)
		1405	CODE:
		1406	grp->fd2 = limit;
		1407	aio_grp_feed (grp);
		1408
		1409	void
		1410	feed (aio_req grp, SV *callback=&PL_sv_undef)
		1411	CODE:
		1412	{
		1413	SvREFCNT_dec (grp->fh2);
		1414	grp->fh2 = newSVsv (callback);
		1415
		1416	if (grp->fd2 <= 0)
		1417	grp->fd2 = 2;
		1418
		1419	aio_grp_feed (grp);
		1420	}
		1421

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.45 by root, Sun Oct 22 00:19:05 2006 UTC vs. Revision 1.64 by root, Mon Oct 23 23:54:41 2006 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.45 by root, Sun Oct 22 00:19:05 2006 UTC vs.
Revision 1.64 by root, Mon Oct 23 23:54:41 2006 UTC