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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.46 by root, Sun Oct 22 00:49:29 2006 UTC vs.
Revision 1.72 by root, Tue Oct 24 17:22:17 2006 UTC

…		…
		1	/* solaris */
		2	#define _POSIX_PTHREAD_SEMANTICS 1
		3
		4	#if __linux
		5	# define _GNU_SOURCE
		6	#endif
		7
1	#define _REENTRANT 1	8	#define _REENTRANT 1
		9
2	#include <errno.h>	10	#include <errno.h>
3		11
4	#include "EXTERN.h"	12	#include "EXTERN.h"
5	#include "perl.h"	13	#include "perl.h"
6	#include "XSUB.h"	14	#include "XSUB.h"
41	# define NAME_MAX 4096	49	# define NAME_MAX 4096
42	#endif	50	#endif
43		51
44	#if __ia64	52	#if __ia64
45	# define STACKSIZE 65536	53	# define STACKSIZE 65536
		54	#elif __i386 \|\| __x86_64 /* 16k is unreasonably high :( */
		55	# define STACKSIZE PTHREAD_STACK_MIN
46	#else	56	#else
47	# define STACKSIZE 8192	57	# define STACKSIZE 16384
48	#endif	58	#endif
		59
		60	/* buffer size for various temporary buffers */
		61	#define AIO_BUFSIZE 65536
		62
		63	#define dBUF \
		64	char *aio_buf; \
		65	LOCK (wrklock); \
		66	self->dbuf = aio_buf = malloc (AIO_BUFSIZE); \
		67	UNLOCK (wrklock); \
		68	if (!aio_buf) \
		69	return -1;
49		70
50	enum {	71	enum {
51	REQ_QUIT,	72	REQ_QUIT,
52	REQ_OPEN, REQ_CLOSE,	73	REQ_OPEN, REQ_CLOSE,
53	REQ_READ, REQ_WRITE, REQ_READAHEAD,	74	REQ_READ, REQ_WRITE, REQ_READAHEAD,
…		…
55	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	76	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
56	REQ_FSYNC, REQ_FDATASYNC,	77	REQ_FSYNC, REQ_FDATASYNC,
57	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	78	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
58	REQ_READDIR,	79	REQ_READDIR,
59	REQ_LINK, REQ_SYMLINK,	80	REQ_LINK, REQ_SYMLINK,
60	REQ_SLEEP,	81	REQ_GROUP, REQ_NOP,
61	REQ_GROUP,	82	REQ_BUSY,
62	};	83	};
63		84
64	#define AIO_REQ_KLASS "IO::AIO::REQ"	85	#define AIO_REQ_KLASS "IO::AIO::REQ"
65	#define AIO_GRP_KLASS "IO::AIO::GRP"	86	#define AIO_GRP_KLASS "IO::AIO::GRP"
66		87
67	typedef struct aio_cb	88	typedef struct aio_cb
68	{	89	{
69	struct aio_cb grp, grp_prev, *grp_next;
70
71	struct aio_cb *volatile next;	90	struct aio_cb *volatile next;
72
73	SV self; / the perl counterpart of this request, if any */
74		91
75	SV data, callback;	92	SV data, callback;
76	SV fh, fh2;	93	SV fh, fh2;
77	void dataptr, data2ptr;	94	void dataptr, data2ptr;
78	Stat_t *statdata;	95	Stat_t *statdata;
79	off_t offset;	96	off_t offset;
80	size_t length;	97	size_t length;
81	ssize_t result;	98	ssize_t result;
82		99
		100	STRLEN dataoffset;
83	int type;	101	int type;
84	int fd, fd2;	102	int fd, fd2;
85	int errorno;	103	int errorno;
86	STRLEN dataoffset;
87	mode_t mode; /* open */	104	mode_t mode; /* open */
		105
88	unsigned char cancelled;	106	unsigned char flags;
		107	unsigned char pri;
		108
		109	SV self; / the perl counterpart of this request, if any */
		110	struct aio_cb grp, grp_prev, grp_next, grp_first;
89	} aio_cb;	111	} aio_cb;
		112
		113	enum {
		114	FLAG_CANCELLED = 0x01,
		115	};
90		116
91	typedef aio_cb *aio_req;	117	typedef aio_cb *aio_req;
92	typedef aio_cb *aio_req_ornot;	118	typedef aio_cb *aio_req_ornot;
		119
		120	enum {
		121	PRI_MIN = -4,
		122	PRI_MAX = 4,
		123
		124	DEFAULT_PRI = 0,
		125	PRI_BIAS = -PRI_MIN,
		126	NUM_PRI = PRI_MAX + PRI_BIAS + 1,
		127	};
		128
		129	static int next_pri = DEFAULT_PRI + PRI_BIAS;
93		130
94	static int started, wanted;	131	static int started, wanted;
95	static volatile int nreqs;	132	static volatile int nreqs;
96	static int max_outstanding = 1<<30;	133	static int max_outstanding = 1<<30;
97	static int respipe [2];	134	static int respipe [2];
98		135
		136	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
		137	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
		138	#else
		139	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
		140	#endif
		141
		142	#define LOCK(mutex) pthread_mutex_lock (&(mutex))
		143	#define UNLOCK(mutex) pthread_mutex_unlock (&(mutex))
		144
		145	/* worker threasd management */
		146	static pthread_mutex_t wrklock = AIO_MUTEX_INIT;
		147
		148	typedef struct worker {
		149	/* locked by wrklock */
		150	struct worker prev, next;
		151
		152	pthread_t tid;
		153
		154	/* locked by reslock, reqlock or wrklock */
		155	aio_req req; /* currently processed request */
		156	void *dbuf;
		157	DIR *dirp;
		158	} worker;
		159
		160	static worker wrk_first = { &wrk_first, &wrk_first, 0 };
		161
		162	static void worker_clear (worker *wrk)
		163	{
		164	if (wrk->dirp)
		165	{
		166	closedir (wrk->dirp);
		167	wrk->dirp = 0;
		168	}
		169
		170	if (wrk->dbuf)
		171	{
		172	free (wrk->dbuf);
		173	wrk->dbuf = 0;
		174	}
		175	}
		176
		177	static void worker_free (worker *wrk)
		178	{
		179	wrk->next->prev = wrk->prev;
		180	wrk->prev->next = wrk->next;
		181
		182	free (wrk);
		183	}
		184
99	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	185	static pthread_mutex_t reslock = AIO_MUTEX_INIT;
100	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	186	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
101	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	187	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
102		188
103	static volatile aio_req reqs, reqe; /* queue start, queue end */	189	/*
104	static volatile aio_req ress, rese; /* queue start, queue end */	190	* a somewhat faster data structure might be nice, but
		191	* with 8 priorities this actually needs <20 insns
		192	* per shift, the most expensive operation.
		193	*/
		194	typedef struct {
		195	aio_req qs[NUM_PRI], qe[NUM_PRI]; /* qstart, qend */
		196	int size;
		197	} reqq;
105		198
		199	static reqq req_queue;
		200	static reqq res_queue;
		201
		202	int reqq_push (reqq *q, aio_req req)
		203	{
		204	int pri = req->pri;
		205	req->next = 0;
		206
		207	if (q->qe[pri])
		208	{
		209	q->qe[pri]->next = req;
		210	q->qe[pri] = req;
		211	}
		212	else
		213	q->qe[pri] = q->qs[pri] = req;
		214
		215	return q->size++;
		216	}
		217
		218	aio_req reqq_shift (reqq *q)
		219	{
		220	int pri;
		221
		222	if (!q->size)
		223	return 0;
		224
		225	--q->size;
		226
		227	for (pri = NUM_PRI; pri--; )
		228	{
		229	aio_req req = q->qs[pri];
		230
		231	if (req)
		232	{
		233	if (!(q->qs[pri] = req->next))
		234	q->qe[pri] = 0;
		235
		236	return req;
		237	}
		238	}
		239
		240	abort ();
		241	}
		242
		243	static void req_invoke (aio_req req);
106	static void req_free (aio_req req);	244	static void req_free (aio_req req);
		245	static void req_cancel (aio_req req);
107		246
108	/* must be called at most once */	247	/* must be called at most once */
109	static SV req_sv (aio_req req, const char klass)	248	static SV req_sv (aio_req req, const char klass)
110	{	249	{
		250	if (!req->self)
		251	{
111	req->self = (SV *)newHV ();	252	req->self = (SV *)newHV ();
112	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	253	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
		254	}
113		255
114	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	256	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
115	}	257	}
116		258
117	static aio_req SvAIO_REQ (SV *sv)	259	static aio_req SvAIO_REQ (SV *sv)
118	{	260	{
		261	MAGIC *mg;
		262
119	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))	263	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))
120	croak ("object of class " AIO_REQ_KLASS " expected");	264	croak ("object of class " AIO_REQ_KLASS " expected");
121		265
122	MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	266	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
123		267
124	return mg ? (aio_req)mg->mg_ptr : 0;	268	return mg ? (aio_req)mg->mg_ptr : 0;
125	}	269	}
126		270
		271	static void aio_grp_feed (aio_req grp)
		272	{
		273	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))
		274	{
		275	int old_len = grp->length;
		276
		277	if (grp->fh2 && SvOK (grp->fh2))
		278	{
		279	dSP;
		280
		281	ENTER;
		282	SAVETMPS;
		283	PUSHMARK (SP);
		284	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
		285	PUTBACK;
		286	call_sv (grp->fh2, G_VOID \| G_EVAL \| G_KEEPERR);
		287	SPAGAIN;
		288	FREETMPS;
		289	LEAVE;
		290	}
		291
		292	/* stop if no progress has been made */
		293	if (old_len == grp->length)
		294	{
		295	SvREFCNT_dec (grp->fh2);
		296	grp->fh2 = 0;
		297	break;
		298	}
		299	}
		300	}
		301
		302	static void aio_grp_dec (aio_req grp)
		303	{
		304	--grp->length;
		305
		306	/* call feeder, if applicable */
		307	aio_grp_feed (grp);
		308
		309	/* finish, if done */
		310	if (!grp->length && grp->fd)
		311	{
		312	req_invoke (grp);
		313	req_free (grp);
		314	}
		315	}
		316
127	static void poll_wait ()	317	static void poll_wait ()
128	{	318	{
129	if (nreqs && !ress)
130	{
131	fd_set rfd;	319	fd_set rfd;
		320
		321	while (nreqs)
		322	{
		323	int size;
		324	#if !(__i386 \|\| __x86_64) /* safe without sempahore on these archs */
		325	LOCK (reslock);
		326	#endif
		327	size = res_queue.size;
		328	#if !(__i386 \|\| __x86_64) /* safe without sempahore on these archs */
		329	UNLOCK (reslock);
		330	#endif
		331
		332	if (size)
		333	return;
		334
132	FD_ZERO(&rfd);	335	FD_ZERO(&rfd);
133	FD_SET(respipe [0], &rfd);	336	FD_SET(respipe [0], &rfd);
134		337
135	select (respipe [0] + 1, &rfd, 0, 0, 0);	338	select (respipe [0] + 1, &rfd, 0, 0, 0);
136	}	339	}
137	}	340	}
138		341
139	static void req_invoke (aio_req req)	342	static void req_invoke (aio_req req)
140	{	343	{
141	dSP;	344	dSP;
142	int errorno = errno;
143		345
144	if (req->cancelled \|\| !SvOK (req->callback))	346	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
145	return;	347	{
146
147	errno = req->errorno;	348	errno = req->errorno;
148		349
149	ENTER;	350	ENTER;
		351	SAVETMPS;
150	PUSHMARK (SP);	352	PUSHMARK (SP);
		353	EXTEND (SP, 1);
151		354
152	switch (req->type)	355	switch (req->type)
153	{
154	case REQ_READDIR:
155	{	356	{
156	SV *rv = &PL_sv_undef;	357	case REQ_READDIR:
157
158	if (req->result >= 0)
159	{	358	{
160	char *buf = req->data2ptr;	359	SV *rv = &PL_sv_undef;
161	AV *av = newAV ();
162		360
163	while (req->result)	361	if (req->result >= 0)
164	{	362	{
		363	int i;
		364	char *buf = req->data2ptr;
		365	AV *av = newAV ();
		366
		367	av_extend (av, req->result - 1);
		368
		369	for (i = 0; i < req->result; ++i)
		370	{
165	SV *sv = newSVpv (buf, 0);	371	SV *sv = newSVpv (buf, 0);
166		372
167	av_push (av, sv);	373	av_store (av, i, sv);
168	buf += SvCUR (sv) + 1;	374	buf += SvCUR (sv) + 1;
169	req->result--;	375	}
		376
		377	rv = sv_2mortal (newRV_noinc ((SV *)av));
170	}	378	}
171		379
172	rv = sv_2mortal (newRV_noinc ((SV *)av));	380	PUSHs (rv);
173	}	381	}
		382	break;
174		383
175	XPUSHs (rv);	384	case REQ_OPEN:
		385	{
		386	/* convert fd to fh */
		387	SV *fh;
		388
		389	PUSHs (sv_2mortal (newSViv (req->result)));
		390	PUTBACK;
		391	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
		392	SPAGAIN;
		393
		394	fh = SvREFCNT_inc (POPs);
		395
		396	PUSHMARK (SP);
		397	XPUSHs (sv_2mortal (fh));
		398	}
		399	break;
		400
		401	case REQ_GROUP:
		402	req->fd = 2; /* mark group as finished */
		403
		404	if (req->data)
		405	{
		406	int i;
		407	AV av = (AV )req->data;
		408
		409	EXTEND (SP, AvFILL (av) + 1);
		410	for (i = 0; i <= AvFILL (av); ++i)
		411	PUSHs (*av_fetch (av, i, 0));
		412	}
		413	break;
		414
		415	case REQ_NOP:
		416	case REQ_BUSY:
		417	break;
		418
		419	default:
		420	PUSHs (sv_2mortal (newSViv (req->result)));
		421	break;
176	}	422	}
177	break;
178		423
179	case REQ_OPEN:
180	{
181	/* convert fd to fh */
182	SV *fh;
183		424
184	XPUSHs (sv_2mortal (newSViv (req->result)));
185	PUTBACK;	425	PUTBACK;
186	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
187	SPAGAIN;
188
189	fh = SvREFCNT_inc (POPs);
190
191	PUSHMARK (SP);
192	XPUSHs (sv_2mortal (fh));
193	}
194	break;
195
196	case REQ_SLEEP:
197	case REQ_GROUP:
198	break;
199
200	default:
201	XPUSHs (sv_2mortal (newSViv (req->result)));
202	break;
203	}
204
205
206	PUTBACK;
207	call_sv (req->callback, G_VOID \| G_EVAL);	426	call_sv (req->callback, G_VOID \| G_EVAL);
208	SPAGAIN;	427	SPAGAIN;
		428
		429	FREETMPS;
		430	LEAVE;
		431	}
		432
		433	if (req->grp)
		434	{
		435	aio_req grp = req->grp;
		436
		437	/* unlink request */
		438	if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
		439	if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
		440
		441	if (grp->grp_first == req)
		442	grp->grp_first = req->grp_next;
		443
		444	aio_grp_dec (grp);
		445	}
209		446
210	if (SvTRUE (ERRSV))	447	if (SvTRUE (ERRSV))
211	{	448	{
212	req_free (req);	449	req_free (req);
213	croak (0);	450	croak (0);
214	}	451	}
215
216	LEAVE;
217
218	errno = errorno;
219	}	452	}
220		453
221	static void req_free (aio_req req)	454	static void req_free (aio_req req)
222	{	455	{
223	if (req->grp)
224	{
225	aio_req grp = req->grp;
226
227	/* unlink request */
228	req->grp_next->grp_prev = req->grp_prev;
229	req->grp_prev->grp_next = req->grp_next;
230
231	if (grp->grp_next == grp && grp->fd)
232	{
233	req_invoke (grp);
234	req_free (grp);
235	}
236	}
237
238	if (req->self)	456	if (req->self)
239	{	457	{
240	sv_unmagic (req->self, PERL_MAGIC_ext);	458	sv_unmagic (req->self, PERL_MAGIC_ext);
241	SvREFCNT_dec (req->self);	459	SvREFCNT_dec (req->self);
242	}	460	}
243		461
244	if (req->data)
245	SvREFCNT_dec (req->data);	462	SvREFCNT_dec (req->data);
246
247	if (req->fh)
248	SvREFCNT_dec (req->fh);	463	SvREFCNT_dec (req->fh);
249
250	if (req->fh2)
251	SvREFCNT_dec (req->fh2);	464	SvREFCNT_dec (req->fh2);
252
253	if (req->statdata)
254	Safefree (req->statdata);
255
256	if (req->callback)
257	SvREFCNT_dec (req->callback);	465	SvREFCNT_dec (req->callback);
		466	Safefree (req->statdata);
258		467
259	if (req->type == REQ_READDIR && req->result >= 0)	468	if (req->type == REQ_READDIR)
260	free (req->data2ptr);	469	free (req->data2ptr);
261		470
262	Safefree (req);	471	Safefree (req);
263	}	472	}
264		473
		474	static void req_cancel_subs (aio_req grp)
		475	{
		476	aio_req sub;
		477
		478	if (grp->type != REQ_GROUP)
		479	return;
		480
		481	SvREFCNT_dec (grp->fh2);
		482	grp->fh2 = 0;
		483
		484	for (sub = grp->grp_first; sub; sub = sub->grp_next)
		485	req_cancel (sub);
		486	}
		487
265	static void req_cancel (aio_req req)	488	static void req_cancel (aio_req req)
266	{	489	{
267	req->cancelled = 1;	490	req->flags \|= FLAG_CANCELLED;
268		491
269	if (req->type == REQ_GROUP)	492	req_cancel_subs (req);
270	{
271	aio_req sub;
272
273	for (sub = req->grp_next; sub != req; sub = sub->grp_next)
274	req_cancel (sub);
275	}
276	}	493	}
277		494
278	static int poll_cb ()	495	static int poll_cb ()
279	{	496	{
280	dSP;	497	dSP;
…		…
282	int do_croak = 0;	499	int do_croak = 0;
283	aio_req req;	500	aio_req req;
284		501
285	for (;;)	502	for (;;)
286	{	503	{
287	pthread_mutex_lock (&reslock);	504	LOCK (reslock);
288	req = ress;	505	req = reqq_shift (&res_queue);
289		506
290	if (req)	507	if (req)
291	{	508	{
292	ress = req->next;
293
294	if (!ress)	509	if (!res_queue.size)
295	{	510	{
296	/* read any signals sent by the worker threads */	511	/* read any signals sent by the worker threads */
297	char buf [32];	512	char buf [32];
298	while (read (respipe [0], buf, 32) == 32)	513	while (read (respipe [0], buf, 32) == 32)
299	;	514	;
300
301	rese = 0;
302	}	515	}
303	}	516	}
304		517
305	pthread_mutex_unlock (&reslock);	518	UNLOCK (reslock);
306		519
307	if (!req)	520	if (!req)
308	break;	521	break;
309		522
310	nreqs--;	523	--nreqs;
311		524
312	if (req->type == REQ_QUIT)	525	if (req->type == REQ_QUIT)
313	started--;	526	started--;
314	else if (req->type == REQ_GROUP && req->grp_next != req)	527	else if (req->type == REQ_GROUP && req->length)
315	{	528	{
316	req->fd = 1; /* mark request as delayed */	529	req->fd = 1; /* mark request as delayed */
317	continue;	530	continue;
318	}	531	}
319	else	532	else
…		…
344		557
345	static void aio_proc(void arg);	558	static void aio_proc(void arg);
346		559
347	static void start_thread (void)	560	static void start_thread (void)
348	{	561	{
		562	worker *wrk = calloc (1, sizeof (worker));
		563
		564	if (!wrk)
		565	croak ("unable to allocate worker thread data");
		566
349	sigset_t fullsigset, oldsigset;	567	sigset_t fullsigset, oldsigset;
350	pthread_t tid;
351	pthread_attr_t attr;	568	pthread_attr_t attr;
352		569
353	pthread_attr_init (&attr);	570	pthread_attr_init (&attr);
354	pthread_attr_setstacksize (&attr, STACKSIZE);	571	pthread_attr_setstacksize (&attr, STACKSIZE);
355	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);	572	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
356		573
357	sigfillset (&fullsigset);	574	sigfillset (&fullsigset);
		575
		576	LOCK (wrklock);
358	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);	577	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
359		578
360	if (pthread_create (&tid, &attr, aio_proc, 0) == 0)	579	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
		580	{
		581	wrk->prev = &wrk_first;
		582	wrk->next = wrk_first.next;
		583	wrk_first.next->prev = wrk;
		584	wrk_first.next = wrk;
361	started++;	585	started++;
		586	}
		587	else
		588	free (wrk);
362		589
363	sigprocmask (SIG_SETMASK, &oldsigset, 0);	590	sigprocmask (SIG_SETMASK, &oldsigset, 0);
		591	UNLOCK (wrklock);
364	}	592	}
365		593
366	static void req_send (aio_req req)	594	static void req_send (aio_req req)
367	{	595	{
368	while (started < wanted && nreqs >= started)	596	while (started < wanted && nreqs >= started)
369	start_thread ();	597	start_thread ();
370		598
371	nreqs++;	599	++nreqs;
372		600
373	pthread_mutex_lock (&reqlock);	601	LOCK (reqlock);
374		602	reqq_push (&req_queue, req);
375	req->next = 0;
376
377	if (reqe)
378	{
379	reqe->next = req;
380	reqe = req;
381	}
382	else
383	reqe = reqs = req;
384
385	pthread_cond_signal (&reqwait);	603	pthread_cond_signal (&reqwait);
386	pthread_mutex_unlock (&reqlock);	604	UNLOCK (reqlock);
387		605
388	if (nreqs > max_outstanding)	606	if (nreqs > max_outstanding)
389	for (;;)	607	for (;;)
390	{	608	{
391	poll_cb ();	609	poll_cb ();
…		…
398	}	616	}
399		617
400	static void end_thread (void)	618	static void end_thread (void)
401	{	619	{
402	aio_req req;	620	aio_req req;
		621
403	Newz (0, req, 1, aio_cb);	622	Newz (0, req, 1, aio_cb);
		623
404	req->type = REQ_QUIT;	624	req->type = REQ_QUIT;
		625	req->pri = PRI_MAX + PRI_BIAS;
405		626
406	req_send (req);	627	req_send (req);
407	}	628	}
408		629
409	static void min_parallel (int nthreads)	630	static void min_parallel (int nthreads)
…		…
461	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)	682	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
462	{	683	{
463	ssize_t res;	684	ssize_t res;
464	off_t ooffset;	685	off_t ooffset;
465		686
466	pthread_mutex_lock (&preadwritelock);	687	LOCK (preadwritelock);
467	ooffset = lseek (fd, 0, SEEK_CUR);	688	ooffset = lseek (fd, 0, SEEK_CUR);
468	lseek (fd, offset, SEEK_SET);	689	lseek (fd, offset, SEEK_SET);
469	res = read (fd, buf, count);	690	res = read (fd, buf, count);
470	lseek (fd, ooffset, SEEK_SET);	691	lseek (fd, ooffset, SEEK_SET);
471	pthread_mutex_unlock (&preadwritelock);	692	UNLOCK (preadwritelock);
472		693
473	return res;	694	return res;
474	}	695	}
475		696
476	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)	697	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
477	{	698	{
478	ssize_t res;	699	ssize_t res;
479	off_t ooffset;	700	off_t ooffset;
480		701
481	pthread_mutex_lock (&preadwritelock);	702	LOCK (preadwritelock);
482	ooffset = lseek (fd, 0, SEEK_CUR);	703	ooffset = lseek (fd, 0, SEEK_CUR);
483	lseek (fd, offset, SEEK_SET);	704	lseek (fd, offset, SEEK_SET);
484	res = write (fd, buf, count);	705	res = write (fd, buf, count);
485	lseek (fd, offset, SEEK_SET);	706	lseek (fd, offset, SEEK_SET);
486	pthread_mutex_unlock (&preadwritelock);	707	UNLOCK (preadwritelock);
487		708
488	return res;	709	return res;
489	}	710	}
490	#endif	711	#endif
491		712
…		…
496	#if !HAVE_READAHEAD	717	#if !HAVE_READAHEAD
497	# define readahead aio_readahead	718	# define readahead aio_readahead
498		719
499	static ssize_t readahead (int fd, off_t offset, size_t count)	720	static ssize_t readahead (int fd, off_t offset, size_t count)
500	{	721	{
501	char readahead_buf[4096];	722	dBUF;
502		723
503	while (count > 0)	724	while (count > 0)
504	{	725	{
505	size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);	726	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
506		727
507	pread (fd, readahead_buf, len, offset);	728	pread (fd, aio_buf, len, offset);
508	offset += len;	729	offset += len;
509	count -= len;	730	count -= len;
510	}	731	}
511		732
512	errno = 0;	733	errno = 0;
…		…
521	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)	742	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)
522	{	743	{
523	struct dirent *e;	744	struct dirent *e;
524	int errorno;	745	int errorno;
525		746
526	pthread_mutex_lock (&readdirlock);	747	LOCK (readdirlock);
527		748
528	e = readdir (dirp);	749	e = readdir (dirp);
529	errorno = errno;	750	errorno = errno;
530		751
531	if (e)	752	if (e)
…		…
534	strcpy (ent->d_name, e->d_name);	755	strcpy (ent->d_name, e->d_name);
535	}	756	}
536	else	757	else
537	*res = 0;	758	*res = 0;
538		759
539	pthread_mutex_unlock (&readdirlock);	760	UNLOCK (readdirlock);
540		761
541	errno = errorno;	762	errno = errorno;
542	return e ? 0 : -1;	763	return e ? 0 : -1;
543	}	764	}
544	#endif	765	#endif
545		766
546	/* sendfile always needs emulation */	767	/* sendfile always needs emulation */
547	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)	768	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
548	{	769	{
549	ssize_t res;	770	ssize_t res;
550		771
551	if (!count)	772	if (!count)
552	return 0;	773	return 0;
…		…
601	#endif	822	#endif
602	)	823	)
603	)	824	)
604	{	825	{
605	/* emulate sendfile. this is a major pain in the ass */	826	/* emulate sendfile. this is a major pain in the ass */
606	char buf[4096];	827	dBUF;
		828
607	res = 0;	829	res = 0;
608		830
609	while (count)	831	while (count)
610	{	832	{
611	ssize_t cnt;	833	ssize_t cnt;
612		834
613	cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);	835	cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
614		836
615	if (cnt <= 0)	837	if (cnt <= 0)
616	{	838	{
617	if (cnt && !res) res = -1;	839	if (cnt && !res) res = -1;
618	break;	840	break;
619	}	841	}
620		842
621	cnt = write (ofd, buf, cnt);	843	cnt = write (ofd, aio_buf, cnt);
622		844
623	if (cnt <= 0)	845	if (cnt <= 0)
624	{	846	{
625	if (cnt && !res) res = -1;	847	if (cnt && !res) res = -1;
626	break;	848	break;
…		…
634		856
635	return res;	857	return res;
636	}	858	}
637		859
638	/* read a full directory */	860	/* read a full directory */
639	static int scandir_ (const char path, void *namesp)	861	static void scandir_ (aio_req req, worker *self)
640	{	862	{
641	DIR *dirp = opendir (path);	863	DIR *dirp;
642	union	864	union
643	{	865	{
644	struct dirent d;	866	struct dirent d;
645	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	867	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
646	} u;	868	} *u;
647	struct dirent *entp;	869	struct dirent *entp;
648	char name, names;	870	char name, names;
649	int memlen = 4096;	871	int memlen = 4096;
650	int memofs = 0;	872	int memofs = 0;
651	int res = 0;	873	int res = 0;
652	int errorno;	874	int errorno;
653		875
654	if (!dirp)	876	LOCK (wrklock);
655	return -1;	877	self->dirp = dirp = opendir (req->dataptr);
		878	self->dbuf = u = malloc (sizeof (*u));
		879	UNLOCK (wrklock);
656		880
657	names = malloc (memlen);	881	req->data2ptr = names = malloc (memlen);
658		882
		883	if (dirp && u && names)
659	for (;;)	884	for (;;)
660	{	885	{
		886	errno = 0;
661	errno = 0, readdir_r (dirp, &u.d, &entp);	887	readdir_r (dirp, &u->d, &entp);
662		888
663	if (!entp)	889	if (!entp)
664	break;	890	break;
665		891
666	name = entp->d_name;	892	name = entp->d_name;
667		893
668	if (name [0] != '.' \|\| (name [1] && (name [1] != '.' \|\| name [2])))	894	if (name [0] != '.' \|\| (name [1] && (name [1] != '.' \|\| name [2])))
669	{	895	{
670	int len = strlen (name) + 1;	896	int len = strlen (name) + 1;
671		897
672	res++;	898	res++;
673		899
674	while (memofs + len > memlen)	900	while (memofs + len > memlen)
675	{	901	{
676	memlen *= 2;	902	memlen *= 2;
		903	LOCK (wrklock);
677	names = realloc (names, memlen);	904	req->data2ptr = names = realloc (names, memlen);
		905	UNLOCK (wrklock);
		906
678	if (!names)	907	if (!names)
679	break;	908	break;
680	}	909	}
681		910
682	memcpy (names + memofs, name, len);	911	memcpy (names + memofs, name, len);
683	memofs += len;	912	memofs += len;
684	}	913	}
685	}	914	}
686		915
687	errorno = errno;
688	closedir (dirp);
689
690	if (errorno)	916	if (errno)
691	{
692	free (names);
693	errno = errorno;
694	res = -1;	917	res = -1;
695	}	918
696		919	req->result = res;
697	namesp = (void )names;
698	return res;
699	}	920	}
700		921
701	/*****************************************************************************/	922	/*****************************************************************************/
702		923
703	static void aio_proc (void thr_arg)	924	static void aio_proc (void thr_arg)
704	{	925	{
705	aio_req req;	926	aio_req req;
706	int type;	927	int type;
		928	worker self = (worker )thr_arg;
707		929
708	do	930	do
709	{	931	{
710	pthread_mutex_lock (&reqlock);	932	LOCK (reqlock);
711		933
712	for (;;)	934	for (;;)
713	{	935	{
714	req = reqs;	936	self->req = req = reqq_shift (&req_queue);
715
716	if (reqs)
717	{
718	reqs = reqs->next;
719	if (!reqs) reqe = 0;
720	}
721		937
722	if (req)	938	if (req)
723	break;	939	break;
724		940
725	pthread_cond_wait (&reqwait, &reqlock);	941	pthread_cond_wait (&reqwait, &reqlock);
726	}	942	}
727		943
728	pthread_mutex_unlock (&reqlock);	944	UNLOCK (reqlock);
729		945
730	errno = 0; /* strictly unnecessary */	946	errno = 0; /* strictly unnecessary */
		947	type = req->type; /* remember type for QUIT check */
731		948
732	if (!req->cancelled)	949	if (!(req->flags & FLAG_CANCELLED))
733	switch (req->type)	950	switch (type)
734	{	951	{
735	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	952	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
736	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	953	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
737		954
738	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	955	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
739	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;	956	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
740		957
741	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	958	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
742	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	959	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
743	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	960	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
744		961
…		…
750	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	967	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
751	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	968	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
752		969
753	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	970	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
754	case REQ_FSYNC: req->result = fsync (req->fd); break;	971	case REQ_FSYNC: req->result = fsync (req->fd); break;
755	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;	972	case REQ_READDIR: scandir_ (req, self); break;
756		973
757	case REQ_SLEEP:	974	case REQ_BUSY:
758	{	975	{
759	struct timeval tv;	976	struct timeval tv;
760		977
761	tv.tv_sec = req->fd;	978	tv.tv_sec = req->fd;
762	tv.tv_usec = req->fd2;	979	tv.tv_usec = req->fd2;
763		980
764	req->result = select (0, 0, 0, 0, &tv);	981	req->result = select (0, 0, 0, 0, &tv);
765	}	982	}
766		983
		984	case REQ_GROUP:
		985	case REQ_NOP:
767	case REQ_QUIT:	986	case REQ_QUIT:
768	break;	987	break;
769		988
770	default:	989	default:
771	req->result = ENOSYS;	990	req->result = ENOSYS;
772	break;	991	break;
773	}	992	}
774		993
775	req->errorno = errno;	994	req->errorno = errno;
776		995
777	pthread_mutex_lock (&reslock);	996	LOCK (reslock);
778		997
779	req->next = 0;	998	if (!reqq_push (&res_queue, req))
780
781	if (rese)
782	{
783	rese->next = req;
784	rese = req;
785	}
786	else
787	{
788	rese = ress = req;
789
790	/* write a dummy byte to the pipe so fh becomes ready */	999	/* write a dummy byte to the pipe so fh becomes ready */
791	write (respipe [1], &respipe, 1);	1000	write (respipe [1], &respipe, 1);
792	}
793		1001
794	pthread_mutex_unlock (&reslock);	1002	self->req = 0;
		1003	worker_clear (self);
		1004
		1005	UNLOCK (reslock);
795	}	1006	}
796	while (type != REQ_QUIT);	1007	while (type != REQ_QUIT);
797		1008
		1009	LOCK (wrklock);
		1010	worker_free (self);
		1011	UNLOCK (wrklock);
		1012
798	return 0;	1013	return 0;
799	}	1014	}
800		1015
801	/*****************************************************************************/	1016	/*****************************************************************************/
802		1017
803	static void atfork_prepare (void)	1018	static void atfork_prepare (void)
804	{	1019	{
805	pthread_mutex_lock (&reqlock);	1020	LOCK (wrklock);
806	pthread_mutex_lock (&reslock);	1021	LOCK (reqlock);
		1022	LOCK (reslock);
807	#if !HAVE_PREADWRITE	1023	#if !HAVE_PREADWRITE
808	pthread_mutex_lock (&preadwritelock);	1024	LOCK (preadwritelock);
809	#endif	1025	#endif
810	#if !HAVE_READDIR_R	1026	#if !HAVE_READDIR_R
811	pthread_mutex_lock (&readdirlock);	1027	LOCK (readdirlock);
812	#endif	1028	#endif
813	}	1029	}
814		1030
815	static void atfork_parent (void)	1031	static void atfork_parent (void)
816	{	1032	{
817	#if !HAVE_READDIR_R	1033	#if !HAVE_READDIR_R
818	pthread_mutex_unlock (&readdirlock);	1034	UNLOCK (readdirlock);
819	#endif	1035	#endif
820	#if !HAVE_PREADWRITE	1036	#if !HAVE_PREADWRITE
821	pthread_mutex_unlock (&preadwritelock);	1037	UNLOCK (preadwritelock);
822	#endif	1038	#endif
823	pthread_mutex_unlock (&reslock);	1039	UNLOCK (reslock);
824	pthread_mutex_unlock (&reqlock);	1040	UNLOCK (reqlock);
		1041	UNLOCK (wrklock);
825	}	1042	}
826		1043
827	static void atfork_child (void)	1044	static void atfork_child (void)
828	{	1045	{
829	aio_req prv;	1046	aio_req prv;
830		1047
		1048	while (prv = reqq_shift (&req_queue))
		1049	req_free (prv);
		1050
		1051	while (prv = reqq_shift (&res_queue))
		1052	req_free (prv);
		1053
		1054	while (wrk_first.next != &wrk_first)
		1055	{
		1056	worker *wrk = wrk_first.next;
		1057
		1058	if (wrk->req)
		1059	req_free (wrk->req);
		1060
		1061	worker_clear (wrk);
		1062	worker_free (wrk);
		1063	}
		1064
831	started = 0;	1065	started = 0;
832		1066	nreqs = 0;
833	while (reqs)
834	{
835	prv = reqs;
836	reqs = prv->next;
837	req_free (prv);
838	}
839
840	reqs = reqe = 0;
841
842	while (ress)
843	{
844	prv = ress;
845	ress = prv->next;
846	req_free (prv);
847	}
848
849	ress = rese = 0;
850		1067
851	close (respipe [0]);	1068	close (respipe [0]);
852	close (respipe [1]);	1069	close (respipe [1]);
853	create_pipe ();	1070	create_pipe ();
854		1071
855	atfork_parent ();	1072	atfork_parent ();
856	}	1073	}
857		1074
858	#define dREQ \	1075	#define dREQ \
859	aio_req req; \	1076	aio_req req; \
		1077	int req_pri = next_pri; \
		1078	next_pri = DEFAULT_PRI + PRI_BIAS; \
860	\	1079	\
861	if (SvOK (callback) && !SvROK (callback)) \	1080	if (SvOK (callback) && !SvROK (callback)) \
862	croak ("callback must be undef or of reference type"); \	1081	croak ("callback must be undef or of reference type"); \
863	\	1082	\
864	Newz (0, req, 1, aio_cb); \	1083	Newz (0, req, 1, aio_cb); \
865	if (!req) \	1084	if (!req) \
866	croak ("out of memory during aio_req allocation"); \	1085	croak ("out of memory during aio_req allocation"); \
867	\	1086	\
868	req->callback = newSVsv (callback)	1087	req->callback = newSVsv (callback); \
		1088	req->pri = req_pri
869		1089
870	#define REQ_SEND \	1090	#define REQ_SEND \
871	req_send (req); \	1091	req_send (req); \
872	\	1092	\
873	if (GIMME_V != G_VOID) \	1093	if (GIMME_V != G_VOID) \
…		…
1127		1347
1128	REQ_SEND;	1348	REQ_SEND;
1129	}	1349	}
1130		1350
1131	void	1351	void
1132	aio_sleep (delay,callback=&PL_sv_undef)	1352	aio_busy (delay,callback=&PL_sv_undef)
1133	double delay	1353	double delay
1134	SV * callback	1354	SV * callback
1135	PPCODE:	1355	PPCODE:
1136	{	1356	{
1137	dREQ;	1357	dREQ;
1138		1358
1139	req->type = REQ_SLEEP;	1359	req->type = REQ_BUSY;
1140	req->fd = delay < 0. ? 0 : delay;	1360	req->fd = delay < 0. ? 0 : delay;
1141	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);	1361	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1142		1362
1143	REQ_SEND;	1363	REQ_SEND;
1144	}	1364	}
…		…
1148	SV * callback	1368	SV * callback
1149	PROTOTYPE: ;$	1369	PROTOTYPE: ;$
1150	PPCODE:	1370	PPCODE:
1151	{	1371	{
1152	dREQ;	1372	dREQ;
		1373
1153	req->type = REQ_GROUP;	1374	req->type = REQ_GROUP;
1154	req->grp_next = req;
1155	req->grp_prev = req;
1156
1157	req_send (req);	1375	req_send (req);
		1376
1158	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1377	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1159	}	1378	}
		1379
		1380	void
		1381	aio_nop (callback=&PL_sv_undef)
		1382	SV * callback
		1383	PPCODE:
		1384	{
		1385	dREQ;
		1386
		1387	req->type = REQ_NOP;
		1388
		1389	REQ_SEND;
		1390	}
		1391
		1392	void
		1393	aioreq_pri (int pri = DEFAULT_PRI)
		1394	CODE:
		1395	if (pri < PRI_MIN) pri = PRI_MIN;
		1396	if (pri > PRI_MAX) pri = PRI_MAX;
		1397	next_pri = pri + PRI_BIAS;
		1398
		1399	void
		1400	aioreq_nice (int nice = 0)
		1401	CODE:
		1402	nice = next_pri - nice;
		1403	if (nice < PRI_MIN) nice = PRI_MIN;
		1404	if (nice > PRI_MAX) nice = PRI_MAX;
		1405	next_pri = nice + PRI_BIAS;
1160		1406
1161	void	1407	void
1162	flush ()	1408	flush ()
1163	PROTOTYPE:	1409	PROTOTYPE:
1164	CODE:	1410	CODE:
…		…
1207	CODE:	1453	CODE:
1208	RETVAL = nreqs;	1454	RETVAL = nreqs;
1209	OUTPUT:	1455	OUTPUT:
1210	RETVAL	1456	RETVAL
1211		1457
		1458	PROTOTYPES: DISABLE
		1459
1212	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1460	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1213		1461
1214	void	1462	void
1215	cancel (aio_req_ornot req)	1463	cancel (aio_req_ornot req)
1216	PROTOTYPE:
1217	CODE:	1464	CODE:
1218	req_cancel (req);	1465	req_cancel (req);
1219		1466
		1467	void
		1468	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
		1469	CODE:
		1470	SvREFCNT_dec (req->callback);
		1471	req->callback = newSVsv (callback);
		1472
1220	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1473	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1221		1474
1222	void	1475	void
1223	add (aio_req grp, ...)	1476	add (aio_req grp, ...)
1224	PROTOTYPE: $;@
1225	PPCODE:	1477	PPCODE:
1226	{	1478	{
1227	int i;	1479	int i;
		1480	aio_req req;
		1481
		1482	if (grp->fd == 2)
		1483	croak ("cannot add requests to IO::AIO::GRP after the group finished");
1228		1484
1229	for (i = 1; i < items; ++i )	1485	for (i = 1; i < items; ++i )
1230	{	1486	{
1231	if (GIMME_V != G_VOID)	1487	if (GIMME_V != G_VOID)
1232	XPUSHs (sv_2mortal (newSVsv (ST (i))));	1488	XPUSHs (sv_2mortal (newSVsv (ST (i))));
1233		1489
1234	aio_req req = SvAIO_REQ (ST (i));	1490	req = SvAIO_REQ (ST (i));
1235	printf ("req = %p\n", req);//D
1236		1491
1237	if (req)	1492	if (req)
1238	{	1493	{
1239	req->grp_prev = grp;	1494	++grp->length;
1240	req->grp_next = grp->grp_next;
1241	grp->grp_next->grp_prev = req;
1242	grp->grp_next = req;
1243
1244	req->grp = grp;	1495	req->grp = grp;
		1496
		1497	req->grp_prev = 0;
		1498	req->grp_next = grp->grp_first;
		1499
		1500	if (grp->grp_first)
		1501	grp->grp_first->grp_prev = req;
		1502
		1503	grp->grp_first = req;
1245	}	1504	}
1246	}	1505	}
1247	}	1506	}
1248		1507
		1508	void
		1509	cancel_subs (aio_req_ornot req)
		1510	CODE:
		1511	req_cancel_subs (req);
		1512
		1513	void
		1514	result (aio_req grp, ...)
		1515	CODE:
		1516	{
		1517	int i;
		1518	AV *av = newAV ();
		1519
		1520	for (i = 1; i < items; ++i )
		1521	av_push (av, newSVsv (ST (i)));
		1522
		1523	SvREFCNT_dec (grp->data);
		1524	grp->data = (SV *)av;
		1525	}
		1526
		1527	void
		1528	limit (aio_req grp, int limit)
		1529	CODE:
		1530	grp->fd2 = limit;
		1531	aio_grp_feed (grp);
		1532
		1533	void
		1534	feed (aio_req grp, SV *callback=&PL_sv_undef)
		1535	CODE:
		1536	{
		1537	SvREFCNT_dec (grp->fh2);
		1538	grp->fh2 = newSVsv (callback);
		1539
		1540	if (grp->fd2 <= 0)
		1541	grp->fd2 = 2;
		1542
		1543	aio_grp_feed (grp);
		1544	}
		1545

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.46 by root, Sun Oct 22 00:49:29 2006 UTC vs. Revision 1.72 by root, Tue Oct 24 17:22:17 2006 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.46 by root, Sun Oct 22 00:49:29 2006 UTC vs.
Revision 1.72 by root, Tue Oct 24 17:22:17 2006 UTC