[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 1.71 by root, Tue Oct 24 16:35:04 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"
9		17
10	#include <pthread.h>	18	#include <pthread.h>
11		19
12	#include <stddef.h>	20	#include <stddef.h>
13	#include <errno.h>	21	#include <errno.h>
		22	#include <sys/time.h>
		23	#include <sys/select.h>
14	#include <sys/types.h>	24	#include <sys/types.h>
15	#include <sys/stat.h>	25	#include <sys/stat.h>
16	#include <limits.h>	26	#include <limits.h>
17	#include <unistd.h>	27	#include <unistd.h>
18	#include <fcntl.h>	28	#include <fcntl.h>
…		…
39	# define NAME_MAX 4096	49	# define NAME_MAX 4096
40	#endif	50	#endif
41		51
42	#if __ia64	52	#if __ia64
43	# define STACKSIZE 65536	53	# define STACKSIZE 65536
		54	#elif __i386 \|\| __x86_64 /* 16k is unreasonably high :( */
		55	# define STACKSIZE PTHREAD_STACK_MIN
44	#else	56	#else
45	# define STACKSIZE 8192	57	# define STACKSIZE 16384
46	#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;
47		70
48	enum {	71	enum {
49	REQ_QUIT,	72	REQ_QUIT,
50	REQ_OPEN, REQ_CLOSE,	73	REQ_OPEN, REQ_CLOSE,
51	REQ_READ, REQ_WRITE, REQ_READAHEAD,	74	REQ_READ, REQ_WRITE, REQ_READAHEAD,
…		…
53	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	76	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
54	REQ_FSYNC, REQ_FDATASYNC,	77	REQ_FSYNC, REQ_FDATASYNC,
55	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	78	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
56	REQ_READDIR,	79	REQ_READDIR,
57	REQ_LINK, REQ_SYMLINK,	80	REQ_LINK, REQ_SYMLINK,
58	REQ_GROUP,	81	REQ_GROUP, REQ_NOP,
		82	REQ_BUSY,
59	};	83	};
60		84
61	#define AIO_REQ_KLASS "IO::AIO::REQ"	85	#define AIO_REQ_KLASS "IO::AIO::REQ"
62	#define AIO_GRP_KLASS "IO::AIO::GRP"	86	#define AIO_GRP_KLASS "IO::AIO::GRP"
63		87
64	typedef struct aio_cb	88	typedef struct aio_cb
65	{	89	{
66	struct aio_cb grp, grp_prev, *grp_next;
67
68	struct aio_cb *volatile next;	90	struct aio_cb *volatile next;
69
70	SV self; / the perl counterpart of this request, if any */
71		91
72	SV data, callback;	92	SV data, callback;
73	SV fh, fh2;	93	SV fh, fh2;
74	void dataptr, data2ptr;	94	void dataptr, data2ptr;
75	Stat_t *statdata;	95	Stat_t *statdata;
76	off_t offset;	96	off_t offset;
77	size_t length;	97	size_t length;
78	ssize_t result;	98	ssize_t result;
79		99
		100	STRLEN dataoffset;
80	int type;	101	int type;
81	int fd, fd2;	102	int fd, fd2;
82	int errorno;	103	int errorno;
83	STRLEN dataoffset;
84	mode_t mode; /* open */	104	mode_t mode; /* open */
		105
85	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;
86	} aio_cb;	111	} aio_cb;
		112
		113	enum {
		114	FLAG_CANCELLED = 0x01,
		115	};
87		116
88	typedef aio_cb *aio_req;	117	typedef aio_cb *aio_req;
89	typedef aio_cb *aio_req_ornot;	118	typedef aio_cb *aio_req_ornot;
90	typedef aio_cb *aio_group;	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;
91		130
92	static int started, wanted;	131	static int started, wanted;
93	static volatile int nreqs;	132	static volatile int nreqs;
94	static int max_outstanding = 1<<30;	133	static int max_outstanding = 1<<30;
95	static int respipe [2];	134	static int respipe [2];
96		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
97	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	185	static pthread_mutex_t reslock = AIO_MUTEX_INIT;
98	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	186	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
99	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	187	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
100		188
101	static volatile aio_req reqs, reqe; /* queue start, queue end */	189	/*
102	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;
		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);
		244	static void req_free (aio_req req);
103		245
104	/* must be called at most once */	246	/* must be called at most once */
105	static SV req_sv (aio_req req, const char klass)	247	static SV req_sv (aio_req req, const char klass)
106	{	248	{
		249	if (!req->self)
		250	{
107	req->self = (SV *)newHV ();	251	req->self = (SV *)newHV ();
108	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	252	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
		253	}
109		254
110	return sv_2mortal (sv_bless (newRV_noinc (req->self), gv_stashpv (klass, 1)));	255	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
111	}	256	}
112		257
113	static aio_req SvAIO_REQ (SV sv, const char klass)	258	static aio_req SvAIO_REQ (SV *sv)
114	{	259	{
		260	MAGIC *mg;
		261
115	if (!sv_derived_from (sv, klass) \|\| !SvROK (sv))	262	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))
116	croak ("object of class %s expected", klass);	263	croak ("object of class " AIO_REQ_KLASS " expected");
117		264
118	MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	265	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
119		266
120	return mg ? (aio_req)mg->mg_ptr : 0;	267	return mg ? (aio_req)mg->mg_ptr : 0;
		268	}
		269
		270	static void aio_grp_feed (aio_req grp)
		271	{
		272	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))
		273	{
		274	int old_len = grp->length;
		275
		276	if (grp->fh2 && SvOK (grp->fh2))
		277	{
		278	dSP;
		279
		280	ENTER;
		281	SAVETMPS;
		282	PUSHMARK (SP);
		283	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
		284	PUTBACK;
		285	call_sv (grp->fh2, G_VOID \| G_EVAL \| G_KEEPERR);
		286	SPAGAIN;
		287	FREETMPS;
		288	LEAVE;
		289	}
		290
		291	/* stop if no progress has been made */
		292	if (old_len == grp->length)
		293	{
		294	SvREFCNT_dec (grp->fh2);
		295	grp->fh2 = 0;
		296	break;
		297	}
		298	}
		299	}
		300
		301	static void aio_grp_dec (aio_req grp)
		302	{
		303	--grp->length;
		304
		305	/* call feeder, if applicable */
		306	aio_grp_feed (grp);
		307
		308	/* finish, if done */
		309	if (!grp->length && grp->fd)
		310	{
		311	req_invoke (grp);
		312	req_free (grp);
		313	}
		314	}
		315
		316	static void poll_wait ()
		317	{
		318	fd_set rfd;
		319
		320	while (nreqs)
		321	{
		322	int size;
		323	#if !(__i386 \|\| __x86_64) /* safe without sempahore on these archs */
		324	LOCK (reslock);
		325	#endif
		326	size = res_queue.size;
		327	#if !(__i386 \|\| __x86_64) /* safe without sempahore on these archs */
		328	UNLOCK (reslock);
		329	#endif
		330
		331	if (size)
		332	return;
		333
		334	FD_ZERO(&rfd);
		335	FD_SET(respipe [0], &rfd);
		336
		337	select (respipe [0] + 1, &rfd, 0, 0, 0);
		338	}
		339	}
		340
		341	static void req_invoke (aio_req req)
		342	{
		343	dSP;
		344
		345	if (!(req->flags & FLAG_CANCELLED) && SvOK (req->callback))
		346	{
		347	errno = req->errorno;
		348
		349	ENTER;
		350	SAVETMPS;
		351	PUSHMARK (SP);
		352	EXTEND (SP, 1);
		353
		354	switch (req->type)
		355	{
		356	case REQ_READDIR:
		357	{
		358	SV *rv = &PL_sv_undef;
		359
		360	if (req->result >= 0)
		361	{
		362	int i;
		363	char *buf = req->data2ptr;
		364	AV *av = newAV ();
		365
		366	av_extend (av, req->result - 1);
		367
		368	for (i = 0; i < req->result; ++i)
		369	{
		370	SV *sv = newSVpv (buf, 0);
		371
		372	av_store (av, i, sv);
		373	buf += SvCUR (sv) + 1;
		374	}
		375
		376	rv = sv_2mortal (newRV_noinc ((SV *)av));
		377	}
		378
		379	PUSHs (rv);
		380	}
		381	break;
		382
		383	case REQ_OPEN:
		384	{
		385	/* convert fd to fh */
		386	SV *fh;
		387
		388	PUSHs (sv_2mortal (newSViv (req->result)));
		389	PUTBACK;
		390	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
		391	SPAGAIN;
		392
		393	fh = SvREFCNT_inc (POPs);
		394
		395	PUSHMARK (SP);
		396	XPUSHs (sv_2mortal (fh));
		397	}
		398	break;
		399
		400	case REQ_GROUP:
		401	req->fd = 2; /* mark group as finished */
		402
		403	if (req->data)
		404	{
		405	int i;
		406	AV av = (AV )req->data;
		407
		408	EXTEND (SP, AvFILL (av) + 1);
		409	for (i = 0; i <= AvFILL (av); ++i)
		410	PUSHs (*av_fetch (av, i, 0));
		411	}
		412	break;
		413
		414	case REQ_NOP:
		415	case REQ_BUSY:
		416	break;
		417
		418	default:
		419	PUSHs (sv_2mortal (newSViv (req->result)));
		420	break;
		421	}
		422
		423
		424	PUTBACK;
		425	call_sv (req->callback, G_VOID \| G_EVAL);
		426	SPAGAIN;
		427
		428	FREETMPS;
		429	LEAVE;
		430	}
		431
		432	if (req->grp)
		433	{
		434	aio_req grp = req->grp;
		435
		436	/* unlink request */
		437	if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
		438	if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
		439
		440	if (grp->grp_first == req)
		441	grp->grp_first = req->grp_next;
		442
		443	aio_grp_dec (grp);
		444	}
		445
		446	if (SvTRUE (ERRSV))
		447	{
		448	req_free (req);
		449	croak (0);
		450	}
121	}	451	}
122		452
123	static void req_free (aio_req req)	453	static void req_free (aio_req req)
124	{	454	{
125	if (req->self)	455	if (req->self)
126	{	456	{
127	sv_unmagic (req->self, PERL_MAGIC_ext);	457	sv_unmagic (req->self, PERL_MAGIC_ext);
128	SvREFCNT_dec (req->self);	458	SvREFCNT_dec (req->self);
129	}	459	}
130		460
131	if (req->data)
132	SvREFCNT_dec (req->data);	461	SvREFCNT_dec (req->data);
133
134	if (req->fh)
135	SvREFCNT_dec (req->fh);	462	SvREFCNT_dec (req->fh);
136
137	if (req->fh2)
138	SvREFCNT_dec (req->fh2);	463	SvREFCNT_dec (req->fh2);
139
140	if (req->statdata)
141	Safefree (req->statdata);
142
143	if (req->callback)
144	SvREFCNT_dec (req->callback);	464	SvREFCNT_dec (req->callback);
		465	Safefree (req->statdata);
145		466
146	if (req->type == REQ_READDIR && req->result >= 0)	467	if (req->type == REQ_READDIR)
147	free (req->data2ptr);	468	free (req->data2ptr);
148		469
149	Safefree (req);	470	Safefree (req);
150	}	471	}
151		472
152	static void	473	static void req_cancel (aio_req req)
153	poll_wait ()
154	{	474	{
155	if (nreqs && !ress)	475	req->flags \|= FLAG_CANCELLED;
156	{
157	fd_set rfd;
158	FD_ZERO(&rfd);
159	FD_SET(respipe [0], &rfd);
160		476
161	select (respipe [0] + 1, &rfd, 0, 0, 0);	477	if (req->type == REQ_GROUP)
162	}	478	{
163	}	479	aio_req sub;
164		480
165	static int	481	for (sub = req->grp_first; sub; sub = sub->grp_next)
166	poll_cb ()	482	req_cancel (sub);
		483	}
		484	}
		485
		486	static int poll_cb ()
167	{	487	{
168	dSP;	488	dSP;
169	int count = 0;	489	int count = 0;
170	int do_croak = 0;	490	int do_croak = 0;
171	aio_req req;	491	aio_req req;
172		492
173	for (;;)	493	for (;;)
174	{	494	{
175	pthread_mutex_lock (&reslock);	495	LOCK (reslock);
176	req = ress;	496	req = reqq_shift (&res_queue);
177		497
178	if (req)	498	if (req)
179	{	499	{
180	ress = req->next;
181
182	if (!ress)	500	if (!res_queue.size)
183	{	501	{
184	/* read any signals sent by the worker threads */	502	/* read any signals sent by the worker threads */
185	char buf [32];	503	char buf [32];
186	while (read (respipe [0], buf, 32) == 32)	504	while (read (respipe [0], buf, 32) == 32)
187	;	505	;
188
189	rese = 0;
190	}	506	}
191	}	507	}
192		508
193	pthread_mutex_unlock (&reslock);	509	UNLOCK (reslock);
194		510
195	if (!req)	511	if (!req)
196	break;	512	break;
197		513
198	nreqs--;	514	--nreqs;
199		515
200	if (req->type == REQ_QUIT)	516	if (req->type == REQ_QUIT)
201	started--;	517	started--;
		518	else if (req->type == REQ_GROUP && req->length)
		519	{
		520	req->fd = 1; /* mark request as delayed */
		521	continue;
		522	}
202	else	523	else
203	{	524	{
204	int errorno = errno;
205	errno = req->errorno;
206
207	if (req->type == REQ_READ)	525	if (req->type == REQ_READ)
208	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));	526	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
209		527
210	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))	528	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
211	SvREADONLY_off (req->data);	529	SvREADONLY_off (req->data);
…		…
215	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	533	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
216	PL_laststatval = req->result;	534	PL_laststatval = req->result;
217	PL_statcache = *(req->statdata);	535	PL_statcache = *(req->statdata);
218	}	536	}
219		537
220	ENTER;	538	req_invoke (req);
221	PUSHMARK (SP);
222		539
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++;	540	count++;
283	}	541	}
284		542
285	req_free (req);	543	req_free (req);
286	}	544	}
…		…
288	return count;	546	return count;
289	}	547	}
290		548
291	static void aio_proc(void arg);	549	static void aio_proc(void arg);
292		550
293	static void
294	start_thread (void)	551	static void start_thread (void)
295	{	552	{
		553	worker *wrk = calloc (1, sizeof (worker));
		554
		555	if (!wrk)
		556	croak ("unable to allocate worker thread data");
		557
296	sigset_t fullsigset, oldsigset;	558	sigset_t fullsigset, oldsigset;
297	pthread_t tid;
298	pthread_attr_t attr;	559	pthread_attr_t attr;
299		560
300	pthread_attr_init (&attr);	561	pthread_attr_init (&attr);
301	pthread_attr_setstacksize (&attr, STACKSIZE);	562	pthread_attr_setstacksize (&attr, STACKSIZE);
302	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);	563	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
303		564
304	sigfillset (&fullsigset);	565	sigfillset (&fullsigset);
		566
		567	LOCK (wrklock);
305	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);	568	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
306		569
307	if (pthread_create (&tid, &attr, aio_proc, 0) == 0)	570	if (pthread_create (&wrk->tid, &attr, aio_proc, (void *)wrk) == 0)
		571	{
		572	wrk->prev = &wrk_first;
		573	wrk->next = wrk_first.next;
		574	wrk_first.next->prev = wrk;
		575	wrk_first.next = wrk;
308	started++;	576	started++;
		577	}
		578	else
		579	free (wrk);
309		580
310	sigprocmask (SIG_SETMASK, &oldsigset, 0);	581	sigprocmask (SIG_SETMASK, &oldsigset, 0);
		582	UNLOCK (wrklock);
311	}	583	}
312		584
313	static void
314	req_send (aio_req req)	585	static void req_send (aio_req req)
315	{	586	{
316	while (started < wanted && nreqs >= started)	587	while (started < wanted && nreqs >= started)
317	start_thread ();	588	start_thread ();
318		589
319	nreqs++;	590	++nreqs;
320		591
321	pthread_mutex_lock (&reqlock);	592	LOCK (reqlock);
322		593	reqq_push (&req_queue, req);
323	req->next = 0;
324
325	if (reqe)
326	{
327	reqe->next = req;
328	reqe = req;
329	}
330	else
331	reqe = reqs = req;
332
333	pthread_cond_signal (&reqwait);	594	pthread_cond_signal (&reqwait);
334	pthread_mutex_unlock (&reqlock);	595	UNLOCK (reqlock);
335		596
336	if (nreqs > max_outstanding)	597	if (nreqs > max_outstanding)
337	for (;;)	598	for (;;)
338	{	599	{
339	poll_cb ();	600	poll_cb ();
…		…
343		604
344	poll_wait ();	605	poll_wait ();
345	}	606	}
346	}	607	}
347		608
348	static void	609	static void end_thread (void)
349	end_thread (void)
350	{	610	{
351	aio_req req;	611	aio_req req;
		612
352	Newz (0, req, 1, aio_cb);	613	Newz (0, req, 1, aio_cb);
		614
353	req->type = REQ_QUIT;	615	req->type = REQ_QUIT;
		616	req->pri = PRI_MAX + PRI_BIAS;
354		617
355	req_send (req);	618	req_send (req);
356	}	619	}
357		620
358	static void min_parallel (int nthreads)	621	static void min_parallel (int nthreads)
…		…
405	* normal read/write by using a mutex. slows down execution a lot,	668	* normal read/write by using a mutex. slows down execution a lot,
406	* but that's your problem, not mine.	669	* but that's your problem, not mine.
407	*/	670	*/
408	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	671	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
409		672
410	static ssize_t	673	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	{	674	{
413	ssize_t res;	675	ssize_t res;
414	off_t ooffset;	676	off_t ooffset;
415		677
416	pthread_mutex_lock (&preadwritelock);	678	LOCK (preadwritelock);
417	ooffset = lseek (fd, 0, SEEK_CUR);	679	ooffset = lseek (fd, 0, SEEK_CUR);
418	lseek (fd, offset, SEEK_SET);	680	lseek (fd, offset, SEEK_SET);
419	res = read (fd, buf, count);	681	res = read (fd, buf, count);
420	lseek (fd, ooffset, SEEK_SET);	682	lseek (fd, ooffset, SEEK_SET);
421	pthread_mutex_unlock (&preadwritelock);	683	UNLOCK (preadwritelock);
422		684
423	return res;	685	return res;
424	}	686	}
425		687
426	static ssize_t
427	pwrite (int fd, void *buf, size_t count, off_t offset)	688	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
428	{	689	{
429	ssize_t res;	690	ssize_t res;
430	off_t ooffset;	691	off_t ooffset;
431		692
432	pthread_mutex_lock (&preadwritelock);	693	LOCK (preadwritelock);
433	ooffset = lseek (fd, 0, SEEK_CUR);	694	ooffset = lseek (fd, 0, SEEK_CUR);
434	lseek (fd, offset, SEEK_SET);	695	lseek (fd, offset, SEEK_SET);
435	res = write (fd, buf, count);	696	res = write (fd, buf, count);
436	lseek (fd, offset, SEEK_SET);	697	lseek (fd, offset, SEEK_SET);
437	pthread_mutex_unlock (&preadwritelock);	698	UNLOCK (preadwritelock);
438		699
439	return res;	700	return res;
440	}	701	}
441	#endif	702	#endif
442		703
…		…
445	#endif	706	#endif
446		707
447	#if !HAVE_READAHEAD	708	#if !HAVE_READAHEAD
448	# define readahead aio_readahead	709	# define readahead aio_readahead
449		710
450	static ssize_t
451	readahead (int fd, off_t offset, size_t count)	711	static ssize_t readahead (int fd, off_t offset, size_t count)
452	{	712	{
453	char readahead_buf[4096];	713	dBUF;
454		714
455	while (count > 0)	715	while (count > 0)
456	{	716	{
457	size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);	717	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
458		718
459	pread (fd, readahead_buf, len, offset);	719	pread (fd, aio_buf, len, offset);
460	offset += len;	720	offset += len;
461	count -= len;	721	count -= len;
462	}	722	}
463		723
464	errno = 0;	724	errno = 0;
…		…
468	#if !HAVE_READDIR_R	728	#if !HAVE_READDIR_R
469	# define readdir_r aio_readdir_r	729	# define readdir_r aio_readdir_r
470		730
471	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	731	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
472		732
473	static int
474	readdir_r (DIR dirp, struct dirent ent, struct dirent **res)	733	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)
475	{	734	{
476	struct dirent *e;	735	struct dirent *e;
477	int errorno;	736	int errorno;
478		737
479	pthread_mutex_lock (&readdirlock);	738	LOCK (readdirlock);
480		739
481	e = readdir (dirp);	740	e = readdir (dirp);
482	errorno = errno;	741	errorno = errno;
483		742
484	if (e)	743	if (e)
…		…
487	strcpy (ent->d_name, e->d_name);	746	strcpy (ent->d_name, e->d_name);
488	}	747	}
489	else	748	else
490	*res = 0;	749	*res = 0;
491		750
492	pthread_mutex_unlock (&readdirlock);	751	UNLOCK (readdirlock);
493		752
494	errno = errorno;	753	errno = errorno;
495	return e ? 0 : -1;	754	return e ? 0 : -1;
496	}	755	}
497	#endif	756	#endif
498		757
499	/* sendfile always needs emulation */	758	/* sendfile always needs emulation */
500	static ssize_t
501	sendfile_ (int ofd, int ifd, off_t offset, size_t count)	759	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count, worker *self)
502	{	760	{
503	ssize_t res;	761	ssize_t res;
504		762
505	if (!count)	763	if (!count)
506	return 0;	764	return 0;
…		…
555	#endif	813	#endif
556	)	814	)
557	)	815	)
558	{	816	{
559	/* emulate sendfile. this is a major pain in the ass */	817	/* emulate sendfile. this is a major pain in the ass */
560	char buf[4096];	818	dBUF;
		819
561	res = 0;	820	res = 0;
562		821
563	while (count)	822	while (count)
564	{	823	{
565	ssize_t cnt;	824	ssize_t cnt;
566		825
567	cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);	826	cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
568		827
569	if (cnt <= 0)	828	if (cnt <= 0)
570	{	829	{
571	if (cnt && !res) res = -1;	830	if (cnt && !res) res = -1;
572	break;	831	break;
573	}	832	}
574		833
575	cnt = write (ofd, buf, cnt);	834	cnt = write (ofd, aio_buf, cnt);
576		835
577	if (cnt <= 0)	836	if (cnt <= 0)
578	{	837	{
579	if (cnt && !res) res = -1;	838	if (cnt && !res) res = -1;
580	break;	839	break;
…		…
588		847
589	return res;	848	return res;
590	}	849	}
591		850
592	/* read a full directory */	851	/* read a full directory */
593	static int	852	static void scandir_ (aio_req req, worker *self)
594	scandir_ (const char path, void *namesp)
595	{	853	{
596	DIR *dirp = opendir (path);	854	DIR *dirp;
597	union	855	union
598	{	856	{
599	struct dirent d;	857	struct dirent d;
600	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	858	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
601	} u;	859	} *u;
602	struct dirent *entp;	860	struct dirent *entp;
603	char name, names;	861	char name, names;
604	int memlen = 4096;	862	int memlen = 4096;
605	int memofs = 0;	863	int memofs = 0;
606	int res = 0;	864	int res = 0;
607	int errorno;	865	int errorno;
608		866
609	if (!dirp)	867	LOCK (wrklock);
610	return -1;	868	self->dirp = dirp = opendir (req->dataptr);
		869	self->dbuf = u = malloc (sizeof (*u));
		870	UNLOCK (wrklock);
611		871
612	names = malloc (memlen);	872	req->data2ptr = names = malloc (memlen);
613		873
		874	if (dirp && u && names)
614	for (;;)	875	for (;;)
615	{	876	{
		877	errno = 0;
616	errno = 0, readdir_r (dirp, &u.d, &entp);	878	readdir_r (dirp, &u->d, &entp);
617		879
618	if (!entp)	880	if (!entp)
619	break;	881	break;
620		882
621	name = entp->d_name;	883	name = entp->d_name;
622		884
623	if (name [0] != '.' \|\| (name [1] && (name [1] != '.' \|\| name [2])))	885	if (name [0] != '.' \|\| (name [1] && (name [1] != '.' \|\| name [2])))
624	{	886	{
625	int len = strlen (name) + 1;	887	int len = strlen (name) + 1;
626		888
627	res++;	889	res++;
628		890
629	while (memofs + len > memlen)	891	while (memofs + len > memlen)
630	{	892	{
631	memlen *= 2;	893	memlen *= 2;
		894	LOCK (wrklock);
632	names = realloc (names, memlen);	895	req->data2ptr = names = realloc (names, memlen);
		896	UNLOCK (wrklock);
		897
633	if (!names)	898	if (!names)
634	break;	899	break;
635	}	900	}
636		901
637	memcpy (names + memofs, name, len);	902	memcpy (names + memofs, name, len);
638	memofs += len;	903	memofs += len;
639	}	904	}
640	}	905	}
641		906
642	errorno = errno;
643	closedir (dirp);
644
645	if (errorno)	907	if (errno)
646	{
647	free (names);
648	errno = errorno;
649	res = -1;	908	res = -1;
650	}	909
651		910	req->result = res;
652	namesp = (void )names;
653	return res;
654	}	911	}
655		912
656	/*****************************************************************************/	913	/*****************************************************************************/
657		914
658	static void *
659	aio_proc (void *thr_arg)	915	static void aio_proc (void thr_arg)
660	{	916	{
661	aio_req req;	917	aio_req req;
662	int type;	918	int type;
		919	worker self = (worker )thr_arg;
663		920
664	do	921	do
665	{	922	{
666	pthread_mutex_lock (&reqlock);	923	LOCK (reqlock);
667		924
668	for (;;)	925	for (;;)
669	{	926	{
670	req = reqs;	927	self->req = req = reqq_shift (&req_queue);
671
672	if (reqs)
673	{
674	reqs = reqs->next;
675	if (!reqs) reqe = 0;
676	}
677		928
678	if (req)	929	if (req)
679	break;	930	break;
680		931
681	pthread_cond_wait (&reqwait, &reqlock);	932	pthread_cond_wait (&reqwait, &reqlock);
682	}	933	}
683		934
684	pthread_mutex_unlock (&reqlock);	935	UNLOCK (reqlock);
685		936
686	errno = 0; /* strictly unnecessary */	937	errno = 0; /* strictly unnecessary */
		938	type = req->type; /* remember type for QUIT check */
687		939
688	if (!req->cancelled)	940	if (!(req->flags & FLAG_CANCELLED))
689	switch (req->type)	941	switch (type)
690	{	942	{
691	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	943	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
692	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	944	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
693		945
694	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	946	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
695	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;	947	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length, self); break;
696		948
697	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	949	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
698	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	950	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
699	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	951	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
700		952
…		…
706	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;	958	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
707	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	959	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
708		960
709	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	961	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
710	case REQ_FSYNC: req->result = fsync (req->fd); break;	962	case REQ_FSYNC: req->result = fsync (req->fd); break;
711	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;	963	case REQ_READDIR: scandir_ (req, self); break;
712		964
		965	case REQ_BUSY:
		966	{
		967	struct timeval tv;
		968
		969	tv.tv_sec = req->fd;
		970	tv.tv_usec = req->fd2;
		971
		972	req->result = select (0, 0, 0, 0, &tv);
		973	}
		974
		975	case REQ_GROUP:
		976	case REQ_NOP:
713	case REQ_QUIT:	977	case REQ_QUIT:
714	break;	978	break;
715		979
716	default:	980	default:
717	req->result = ENOSYS;	981	req->result = ENOSYS;
718	break;	982	break;
719	}	983	}
720		984
721	req->errorno = errno;	985	req->errorno = errno;
722		986
723	pthread_mutex_lock (&reslock);	987	LOCK (reslock);
724		988
725	req->next = 0;	989	if (!reqq_push (&res_queue, req))
726
727	if (rese)
728	{
729	rese->next = req;
730	rese = req;
731	}
732	else
733	{
734	rese = ress = req;
735
736	/* write a dummy byte to the pipe so fh becomes ready */	990	/* write a dummy byte to the pipe so fh becomes ready */
737	write (respipe [1], &respipe, 1);	991	write (respipe [1], &respipe, 1);
738	}
739		992
740	pthread_mutex_unlock (&reslock);	993	self->req = 0;
		994	worker_clear (self);
		995
		996	UNLOCK (reslock);
741	}	997	}
742	while (type != REQ_QUIT);	998	while (type != REQ_QUIT);
743		999
		1000	LOCK (wrklock);
		1001	worker_free (self);
		1002	UNLOCK (wrklock);
		1003
744	return 0;	1004	return 0;
745	}	1005	}
746		1006
747	/*****************************************************************************/	1007	/*****************************************************************************/
748		1008
749	static void atfork_prepare (void)	1009	static void atfork_prepare (void)
750	{	1010	{
751	pthread_mutex_lock (&reqlock);	1011	LOCK (wrklock);
752	pthread_mutex_lock (&reslock);	1012	LOCK (reqlock);
		1013	LOCK (reslock);
753	#if !HAVE_PREADWRITE	1014	#if !HAVE_PREADWRITE
754	pthread_mutex_lock (&preadwritelock);	1015	LOCK (preadwritelock);
755	#endif	1016	#endif
756	#if !HAVE_READDIR_R	1017	#if !HAVE_READDIR_R
757	pthread_mutex_lock (&readdirlock);	1018	LOCK (readdirlock);
758	#endif	1019	#endif
759	}	1020	}
760		1021
761	static void atfork_parent (void)	1022	static void atfork_parent (void)
762	{	1023	{
763	#if !HAVE_READDIR_R	1024	#if !HAVE_READDIR_R
764	pthread_mutex_unlock (&readdirlock);	1025	UNLOCK (readdirlock);
765	#endif	1026	#endif
766	#if !HAVE_PREADWRITE	1027	#if !HAVE_PREADWRITE
767	pthread_mutex_unlock (&preadwritelock);	1028	UNLOCK (preadwritelock);
768	#endif	1029	#endif
769	pthread_mutex_unlock (&reslock);	1030	UNLOCK (reslock);
770	pthread_mutex_unlock (&reqlock);	1031	UNLOCK (reqlock);
		1032	UNLOCK (wrklock);
771	}	1033	}
772		1034
773	static void atfork_child (void)	1035	static void atfork_child (void)
774	{	1036	{
775	aio_req prv;	1037	aio_req prv;
776		1038
		1039	while (prv = reqq_shift (&req_queue))
		1040	req_free (prv);
		1041
		1042	while (prv = reqq_shift (&res_queue))
		1043	req_free (prv);
		1044
		1045	while (wrk_first.next != &wrk_first)
		1046	{
		1047	worker *wrk = wrk_first.next;
		1048
		1049	if (wrk->req)
		1050	req_free (wrk->req);
		1051
		1052	worker_clear (wrk);
		1053	worker_free (wrk);
		1054	}
		1055
777	started = 0;	1056	started = 0;
778		1057	nreqs = 0;
779	while (reqs)
780	{
781	prv = reqs;
782	reqs = prv->next;
783	req_free (prv);
784	}
785
786	reqs = reqe = 0;
787
788	while (ress)
789	{
790	prv = ress;
791	ress = prv->next;
792	req_free (prv);
793	}
794
795	ress = rese = 0;
796		1058
797	close (respipe [0]);	1059	close (respipe [0]);
798	close (respipe [1]);	1060	close (respipe [1]);
799	create_pipe ();	1061	create_pipe ();
800		1062
801	atfork_parent ();	1063	atfork_parent ();
802	}	1064	}
803		1065
804	#define dREQ \	1066	#define dREQ \
805	aio_req req; \	1067	aio_req req; \
		1068	int req_pri = next_pri; \
		1069	next_pri = DEFAULT_PRI + PRI_BIAS; \
806	\	1070	\
807	if (SvOK (callback) && !SvROK (callback)) \	1071	if (SvOK (callback) && !SvROK (callback)) \
808	croak ("callback must be undef or of reference type"); \	1072	croak ("callback must be undef or of reference type"); \
809	\	1073	\
810	Newz (0, req, 1, aio_cb); \	1074	Newz (0, req, 1, aio_cb); \
811	if (!req) \	1075	if (!req) \
812	croak ("out of memory during aio_req allocation"); \	1076	croak ("out of memory during aio_req allocation"); \
813	\	1077	\
814	req->callback = newSVsv (callback)	1078	req->callback = newSVsv (callback); \
		1079	req->pri = req_pri
815		1080
816	#define REQ_SEND \	1081	#define REQ_SEND \
817	req_send (req); \	1082	req_send (req); \
818	\	1083	\
819	if (GIMME_V != G_VOID) \	1084	if (GIMME_V != G_VOID) \
…		…
1073		1338
1074	REQ_SEND;	1339	REQ_SEND;
1075	}	1340	}
1076		1341
1077	void	1342	void
		1343	aio_busy (delay,callback=&PL_sv_undef)
		1344	double delay
		1345	SV * callback
		1346	PPCODE:
		1347	{
		1348	dREQ;
		1349
		1350	req->type = REQ_BUSY;
		1351	req->fd = delay < 0. ? 0 : delay;
		1352	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
		1353
		1354	REQ_SEND;
		1355	}
		1356
		1357	void
1078	aio_group (callback=&PL_sv_undef)	1358	aio_group (callback=&PL_sv_undef)
1079	SV * callback	1359	SV * callback
1080	PROTOTYPE: ;&	1360	PROTOTYPE: ;$
1081	PPCODE:	1361	PPCODE:
1082	{	1362	{
1083	dREQ;	1363	dREQ;
		1364
1084	req->type = REQ_GROUP;	1365	req->type = REQ_GROUP;
		1366	req_send (req);
		1367
1085	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1368	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1086	}	1369	}
		1370
		1371	void
		1372	aio_nop (callback=&PL_sv_undef)
		1373	SV * callback
		1374	PPCODE:
		1375	{
		1376	dREQ;
		1377
		1378	req->type = REQ_NOP;
		1379
		1380	REQ_SEND;
		1381	}
		1382
		1383	void
		1384	aioreq_pri (int pri = DEFAULT_PRI)
		1385	CODE:
		1386	if (pri < PRI_MIN) pri = PRI_MIN;
		1387	if (pri > PRI_MAX) pri = PRI_MAX;
		1388	next_pri = pri + PRI_BIAS;
		1389
		1390	void
		1391	aioreq_nice (int nice = 0)
		1392	CODE:
		1393	nice = next_pri - nice;
		1394	if (nice < PRI_MIN) nice = PRI_MIN;
		1395	if (nice > PRI_MAX) nice = PRI_MAX;
		1396	next_pri = nice + PRI_BIAS;
1087		1397
1088	void	1398	void
1089	flush ()	1399	flush ()
1090	PROTOTYPE:	1400	PROTOTYPE:
1091	CODE:	1401	CODE:
…		…
1134	CODE:	1444	CODE:
1135	RETVAL = nreqs;	1445	RETVAL = nreqs;
1136	OUTPUT:	1446	OUTPUT:
1137	RETVAL	1447	RETVAL
1138		1448
		1449	PROTOTYPES: DISABLE
		1450
1139	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1451	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1140		1452
1141	void	1453	void
1142	cancel (aio_req_ornot req)	1454	cancel (aio_req_ornot req)
1143	PROTOTYPE:
1144	CODE:	1455	CODE:
1145	req->cancelled = 1;	1456	req_cancel (req);
1146		1457
		1458	void
		1459	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
		1460	CODE:
		1461	SvREFCNT_dec (req->callback);
		1462	req->callback = newSVsv (callback);
		1463
		1464	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
		1465
		1466	void
		1467	add (aio_req grp, ...)
		1468	PPCODE:
		1469	{
		1470	int i;
		1471	aio_req req;
		1472
		1473	if (grp->fd == 2)
		1474	croak ("cannot add requests to IO::AIO::GRP after the group finished");
		1475
		1476	for (i = 1; i < items; ++i )
		1477	{
		1478	if (GIMME_V != G_VOID)
		1479	XPUSHs (sv_2mortal (newSVsv (ST (i))));
		1480
		1481	req = SvAIO_REQ (ST (i));
		1482
		1483	if (req)
		1484	{
		1485	++grp->length;
		1486	req->grp = grp;
		1487
		1488	req->grp_prev = 0;
		1489	req->grp_next = grp->grp_first;
		1490
		1491	if (grp->grp_first)
		1492	grp->grp_first->grp_prev = req;
		1493
		1494	grp->grp_first = req;
		1495	}
		1496	}
		1497	}
		1498
		1499	void
		1500	result (aio_req grp, ...)
		1501	CODE:
		1502	{
		1503	int i;
		1504	AV *av = newAV ();
		1505
		1506	for (i = 1; i < items; ++i )
		1507	av_push (av, newSVsv (ST (i)));
		1508
		1509	SvREFCNT_dec (grp->data);
		1510	grp->data = (SV *)av;
		1511	}
		1512
		1513	void
		1514	limit (aio_req grp, int limit)
		1515	CODE:
		1516	grp->fd2 = limit;
		1517	aio_grp_feed (grp);
		1518
		1519	void
		1520	feed (aio_req grp, SV *callback=&PL_sv_undef)
		1521	CODE:
		1522	{
		1523	SvREFCNT_dec (grp->fh2);
		1524	grp->fh2 = newSVsv (callback);
		1525
		1526	if (grp->fd2 <= 0)
		1527	grp->fd2 = 2;
		1528
		1529	aio_grp_feed (grp);
		1530	}
		1531

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing IO-AIO/AIO.xs (file contents): Revision 1.44 by root, Sat Oct 21 23:20:29 2006 UTC vs. Revision 1.71 by root, Tue Oct 24 16:35:04 2006 UTC

Diff Legend

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.44 by root, Sat Oct 21 23:20:29 2006 UTC vs.
Revision 1.71 by root, Tue Oct 24 16:35:04 2006 UTC