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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.25 by root, Wed Aug 17 03:16:56 2005 UTC vs.
Revision 1.35 by root, Tue Aug 23 01:16:50 2005 UTC

…		…
4	#include "EXTERN.h"	4	#include "EXTERN.h"
5	#include "perl.h"	5	#include "perl.h"
6	#include "XSUB.h"	6	#include "XSUB.h"
7		7
8	#include "autoconf/config.h"	8	#include "autoconf/config.h"
		9
		10	#include <pthread.h>
9		11
10	#include <sys/types.h>	12	#include <sys/types.h>
11	#include <sys/stat.h>	13	#include <sys/stat.h>
12		14
13	#include <unistd.h>	15	#include <unistd.h>
14	#include <fcntl.h>	16	#include <fcntl.h>
15	#include <signal.h>	17	#include <signal.h>
16	#include <sched.h>	18	#include <sched.h>
17		19
18	#include <pthread.h>	20	#if HAVE_SENDFILE
19		21	# if __linux
20	typedef void InputStream; / hack, but 5.6.1 is simply toooo old ;) */	22	# include <sys/sendfile.h>
21	typedef void OutputStream; / hack, but 5.6.1 is simply toooo old ;) */	23	# elif __freebsd
22	typedef void InOutStream; / hack, but 5.6.1 is simply toooo old ;) */	24	# include <sys/socket.h>
		25	# include <sys/uio.h>
		26	# elif __hpux
		27	# include <sys/socket.h>
		28	# elif __solaris /* not yet */
		29	# include <sys/sendfile.h>
		30	# else
		31	# error sendfile support requested but not available
		32	# endif
		33	#endif
23		34
24	#if __ia64	35	#if __ia64
25	# define STACKSIZE 65536	36	# define STACKSIZE 65536
26	#else	37	#else
27	# define STACKSIZE 4096	38	# define STACKSIZE 4096
…		…
29		40
30	enum {	41	enum {
31	REQ_QUIT,	42	REQ_QUIT,
32	REQ_OPEN, REQ_CLOSE,	43	REQ_OPEN, REQ_CLOSE,
33	REQ_READ, REQ_WRITE, REQ_READAHEAD,	44	REQ_READ, REQ_WRITE, REQ_READAHEAD,
		45	REQ_SENDFILE,
34	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	46	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
35	REQ_FSYNC, REQ_FDATASYNC,	47	REQ_FSYNC, REQ_FDATASYNC,
36	REQ_UNLINK, REQ_RMDIR,	48	REQ_UNLINK, REQ_RMDIR,
37	REQ_SYMLINK,	49	REQ_SYMLINK,
38	};	50	};
…		…
40	typedef struct aio_cb {	52	typedef struct aio_cb {
41	struct aio_cb *volatile next;	53	struct aio_cb *volatile next;
42		54
43	int type;	55	int type;
44		56
45	int fd;	57	int fd, fd2;
46	off_t offset;	58	off_t offset;
47	size_t length;	59	size_t length;
48	ssize_t result;	60	ssize_t result;
49	mode_t mode; /* open */	61	mode_t mode; /* open */
50	int errorno;	62	int errorno;
51	SV data, callback, *fh;	63	SV data, callback;
		64	SV fh, fh2;
52	void dataptr, data2ptr;	65	void dataptr, data2ptr;
53	STRLEN dataoffset;	66	STRLEN dataoffset;
54		67
55	Stat_t *statdata;	68	Stat_t *statdata;
56	} aio_cb;	69	} aio_cb;
57		70
58	typedef aio_cb *aio_req;	71	typedef aio_cb *aio_req;
59		72
60	static int started;	73	static int started, wanted;
61	static volatile int nreqs;	74	static volatile int nreqs;
62	static int max_outstanding = 1<<30;	75	static int max_outstanding = 1<<30;
63	static int respipe [2];	76	static int respipe [2];
64		77
65	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	78	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
66	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	79	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
67	static pthread_mutex_t frklock = PTHREAD_MUTEX_INITIALIZER;
68	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	80	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
69		81
70	static volatile aio_req reqs, reqe; /* queue start, queue end */	82	static volatile aio_req reqs, reqe; /* queue start, queue end */
71	static volatile aio_req ress, rese; /* queue start, queue end */	83	static volatile aio_req ress, rese; /* queue start, queue end */
		84
		85	static void free_req (aio_req req)
		86	{
		87	if (req->data)
		88	SvREFCNT_dec (req->data);
		89
		90	if (req->fh)
		91	SvREFCNT_dec (req->fh);
		92
		93	if (req->fh2)
		94	SvREFCNT_dec (req->fh2);
		95
		96	if (req->statdata)
		97	Safefree (req->statdata);
		98
		99	if (req->callback)
		100	SvREFCNT_dec (req->callback);
		101
		102	Safefree (req);
		103	}
72		104
73	static void	105	static void
74	poll_wait ()	106	poll_wait ()
75	{	107	{
76	if (nreqs && !ress)	108	if (nreqs && !ress)
…		…
87	poll_cb ()	119	poll_cb ()
88	{	120	{
89	dSP;	121	dSP;
90	int count = 0;	122	int count = 0;
91	int do_croak = 0;	123	int do_croak = 0;
92	aio_req req, prv;	124	aio_req req;
93		125
94	pthread_mutex_lock (&reslock);	126	for (;;)
95
96	{
97	/* read any signals sent by the worker threads */
98	char buf [32];
99	while (read (respipe [0], buf, 32) == 32)
100	;
101	}
102
103	req = ress;
104	ress = rese = 0;
105
106	pthread_mutex_unlock (&reslock);
107
108	while (req)
109	{	127	{
		128	pthread_mutex_lock (&reslock);
		129	req = ress;
		130
		131	if (req)
		132	{
		133	ress = req->next;
		134
		135	if (!ress)
		136	{
		137	/* read any signals sent by the worker threads */
		138	char buf [32];
		139	while (read (respipe [0], buf, 32) == 32)
		140	;
		141
		142	rese = 0;
		143	}
		144	}
		145
		146	pthread_mutex_unlock (&reslock);
		147
		148	if (!req)
		149	break;
		150
110	nreqs--;	151	nreqs--;
111		152
112	if (req->type == REQ_QUIT)	153	if (req->type == REQ_QUIT)
113	started--;	154	started--;
114	else	155	else
115	{	156	{
116	int errorno = errno;	157	int errorno = errno;
117	errno = req->errorno;	158	errno = req->errorno;
118		159
119	if (req->type == REQ_READ)	160	if (req->type == REQ_READ)
120	SvCUR_set (req->data, req->dataoffset	161	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
121	+ req->result > 0 ? req->result : 0);
122		162
		163	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
		164	SvREADONLY_off (req->data);
		165
123	if (req->data)	166	if (req->statdata)
124	SvREFCNT_dec (req->data);
125
126	if (req->fh)
127	SvREFCNT_dec (req->fh);
128
129	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)
130	{	167	{
131	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	168	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
132	PL_laststatval = req->result;	169	PL_laststatval = req->result;
133	PL_statcache = *(req->statdata);	170	PL_statcache = *(req->statdata);
134
135	Safefree (req->statdata);
136	}	171	}
137		172
138	ENTER;	173	ENTER;
139	PUSHMARK (SP);	174	PUSHMARK (SP);
140	XPUSHs (sv_2mortal (newSViv (req->result)));	175	XPUSHs (sv_2mortal (newSViv (req->result)));
…		…
157	if (SvOK (req->callback))	192	if (SvOK (req->callback))
158	{	193	{
159	PUTBACK;	194	PUTBACK;
160	call_sv (req->callback, G_VOID \| G_EVAL);	195	call_sv (req->callback, G_VOID \| G_EVAL);
161	SPAGAIN;	196	SPAGAIN;
		197
		198	if (SvTRUE (ERRSV))
		199	{
		200	free_req (req);
		201	croak (0);
		202	}
162	}	203	}
163		204
164	do_croak = SvTRUE (ERRSV);
165
166	LEAVE;	205	LEAVE;
167
168	if (req->callback)
169	SvREFCNT_dec (req->callback);
170		206
171	errno = errorno;	207	errno = errorno;
172	count++;	208	count++;
173	}	209	}
174		210
175	prv = req;	211	free_req (req);
176	req = req->next;
177	Safefree (prv);
178
179	if (do_croak)
180	croak (0);
181	}	212	}
182		213
183	return count;	214	return count;
184	}	215	}
185		216
…		…
206	}	237	}
207		238
208	static void	239	static void
209	send_req (aio_req req)	240	send_req (aio_req req)
210	{	241	{
		242	while (started < wanted && nreqs >= started)
		243	start_thread ();
		244
211	nreqs++;	245	nreqs++;
212		246
213	pthread_mutex_lock (&reqlock);	247	pthread_mutex_lock (&reqlock);
214		248
215	req->next = 0;	249	req->next = 0;
…		…
223	reqe = reqs = req;	257	reqe = reqs = req;
224		258
225	pthread_cond_signal (&reqwait);	259	pthread_cond_signal (&reqwait);
226	pthread_mutex_unlock (&reqlock);	260	pthread_mutex_unlock (&reqlock);
227		261
228	while (nreqs > max_outstanding)	262	if (nreqs > max_outstanding)
		263	for (;;)
		264	{
		265	poll_cb ();
		266
		267	if (nreqs <= max_outstanding)
		268	break;
		269
		270	poll_wait ();
		271	}
		272	}
		273
		274	static void
		275	end_thread (void)
		276	{
		277	aio_req req;
		278	Newz (0, req, 1, aio_cb);
		279	req->type = REQ_QUIT;
		280
		281	send_req (req);
		282	}
		283
		284	static void min_parallel (int nthreads)
		285	{
		286	if (wanted < nthreads)
		287	wanted = nthreads;
		288	}
		289
		290	static void max_parallel (int nthreads)
		291	{
		292	int cur = started;
		293
		294	if (wanted > nthreads)
		295	wanted = nthreads;
		296
		297	while (cur > wanted)
		298	{
		299	end_thread ();
		300	cur--;
		301	}
		302
		303	while (started > wanted)
229	{	304	{
230	poll_wait ();	305	poll_wait ();
231	poll_cb ();	306	poll_cb ();
232	}	307	}
233	}	308	}
234		309
235	static void	310	static void create_pipe ()
236	end_thread (void)
237	{	311	{
		312	if (pipe (respipe))
		313	croak ("unable to initialize result pipe");
		314
		315	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
		316	croak ("cannot set result pipe to nonblocking mode");
		317
		318	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		319	croak ("cannot set result pipe to nonblocking mode");
		320	}
		321
		322	static void atfork_prepare (void)
		323	{
		324	pthread_mutex_lock (&reqlock);
		325	pthread_mutex_lock (&reslock);
		326	}
		327
		328	static void atfork_parent (void)
		329	{
		330	pthread_mutex_unlock (&reslock);
		331	pthread_mutex_unlock (&reqlock);
		332	}
		333
		334	static void atfork_child (void)
		335	{
238	aio_req req;	336	aio_req prv;
239	New (0, req, 1, aio_cb);
240	req->type = REQ_QUIT;
241		337
242	send_req (req);	338	started = 0;
243	}
244		339
245		340	while (reqs)
246	static void min_parallel (int nthreads)	341	{
247	{	342	prv = reqs;
248	while (nthreads > started)	343	reqs = prv->next;
249	start_thread ();	344	free_req (prv);
250	}
251
252	static void max_parallel (int nthreads)
253	{
254	int cur = started;
255	while (cur > nthreads)
256	{
257	end_thread ();
258	cur--;
259	}	345	}
260		346
261	while (started > nthreads)	347	reqs = reqe = 0;
		348
		349	while (ress)
262	{	350	{
263	poll_wait ();	351	prv = ress;
264	poll_cb ();	352	ress = prv->next;
		353	free_req (prv);
265	}	354	}
266	}
267
268	static int fork_started;
269
270	static void atfork_prepare (void)
271	{
272	int nstarted;
273
274	for (;;) {
275	while (nreqs)
276	{	355
277	poll_wait ();	356	ress = rese = 0;
278	poll_cb ();
279	}
280		357
281	nstarted = started;	358	close (respipe [0]);
282	max_parallel (0);	359	close (respipe [1]);
283		360	create_pipe ();
284	pthread_mutex_lock (&reqlock);
285		361
286	if (!nreqs && !started)	362	atfork_parent ();
287	break;
288
289	pthread_mutex_unlock (&reqlock);
290
291	min_parallel (fork_started);
292	}
293
294	pthread_mutex_lock (&frklock);
295	fork_started = nstarted;
296	pthread_mutex_lock (&reslock);
297
298	assert (!started);
299	assert (!nreqs);
300	assert (!reqs && !reqe);
301	assert (!ress && !rese);
302	}	363	}
303		364
304	static void atfork_parent (void)	365	/* currently noops */
305	{	366	#define LOCK_FD(fd) do { } while (0)
306	pthread_mutex_unlock (&reslock);	367	#define UNLOCK_FD(fd) do { } while (0)
307	pthread_mutex_unlock (&frklock);
308	pthread_mutex_unlock (&reqlock);
309
310	min_parallel (fork_started);
311	}
312
313	#define atfork_child atfork_parent
314		368
315	/*****************************************************************************/	369	/*****************************************************************************/
316	/* work around various missing functions */	370	/* work around various missing functions */
317		371
318	#if !HAVE_PREADWRITE	372	#if !HAVE_PREADWRITE
…		…
330	pread (int fd, void *buf, size_t count, off_t offset)	384	pread (int fd, void *buf, size_t count, off_t offset)
331	{	385	{
332	ssize_t res;	386	ssize_t res;
333	off_t ooffset;	387	off_t ooffset;
334		388
335	pthread_mutex_lock (&iolock);	389	LOCK_FD (fd);
		390	pthread_mutex_lock (&iolock); /* replace by LOCK_FD and private buffer */
336	ooffset = lseek (fd, 0, SEEK_CUR);	391	ooffset = lseek (fd, 0, SEEK_CUR);
337	lseek (fd, offset, SEEK_SET);	392	lseek (fd, offset, SEEK_SET);
338	res = read (fd, buf, count);	393	res = read (fd, buf, count);
339	lseek (fd, ooffset, SEEK_SET);	394	lseek (fd, ooffset, SEEK_SET);
340	pthread_mutex_unlock (&iolock);	395	pthread_mutex_unlock (&iolock);
		396	UNLOCK_FD (d);
341		397
342	return res;	398	return res;
343	}	399	}
344		400
345	static ssize_t	401	static ssize_t
346	pwrite (int fd, void *buf, size_t count, off_t offset)	402	pwrite (int fd, void *buf, size_t count, off_t offset)
347	{	403	{
348	ssize_t res;	404	ssize_t res;
349	off_t ooffset;	405	off_t ooffset;
350		406
351	pthread_mutex_lock (&iolock);	407	LOCK_FD (fd);
		408	pthread_mutex_lock (&iolock); /* replace by LOCK_FD and private buffer */
352	ooffset = lseek (fd, 0, SEEK_CUR);	409	ooffset = lseek (fd, 0, SEEK_CUR);
353	lseek (fd, offset, SEEK_SET);	410	lseek (fd, offset, SEEK_SET);
354	res = write (fd, buf, count);	411	res = write (fd, buf, count);
355	lseek (fd, offset, SEEK_SET);	412	lseek (fd, offset, SEEK_SET);
356	pthread_mutex_unlock (&iolock);	413	pthread_mutex_unlock (&iolock);
		414	UNLOCK_FD (d);
357		415
358	return res;	416	return res;
359	}	417	}
360	#endif	418	#endif
361		419
…		…
381	}	439	}
382		440
383	errno = 0;	441	errno = 0;
384	}	442	}
385	#endif	443	#endif
		444
		445	/* sendfile always needs emulation */
		446	static ssize_t
		447	sendfile_ (int ofd, int ifd, off_t offset, size_t count)
		448	{
		449	ssize_t res;
		450
		451	if (!count)
		452	return 0;
		453
		454	LOCK_FD (ofd);
		455
		456	#if HAVE_SENDFILE
		457	# if __linux
		458	res = sendfile (ofd, ifd, &offset, count);
		459
		460	# elif __freebsd
		461	/*
		462	* Of course, the freebsd sendfile is a dire hack with no thoughts
		463	* wasted on making it similar to other I/O functions.
		464	*/
		465	{
		466	off_t sbytes;
		467	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
		468
		469	if (res < 0 && sbytes)
		470	/* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
		471	res = sbytes;
		472	}
		473
		474	# elif __hpux
		475	res = sendfile (ofd, ifd, offset, count, 0, 0);
		476
		477	# elif __solaris
		478	{
		479	struct sendfilevec vec;
		480	size_t sbytes;
		481
		482	vec.sfv_fd = ifd;
		483	vec.sfv_flag = 0;
		484	vec.sfv_off = offset;
		485	vec.sfv_len = count;
		486
		487	res = sendfilev (ofd, &vec, 1, &sbytes);
		488
		489	if (res < 0 && sbytes)
		490	res = sbytes;
		491	}
		492
		493	# else
		494	res = -1;
		495	errno = ENOSYS;
		496	# endif
		497	#endif
		498
		499	if (res < 0
		500	&& (errno == ENOSYS \|\| errno == EINVAL \|\| errno == ENOTSOCK
		501	#if __solaris
		502	\|\| errno == EAFNOSUPPORT \|\| errno == EPROTOTYPE
		503	#endif
		504	)
		505	)
		506	{
		507	/* emulate sendfile. this is a major pain in the ass */
		508	char *buf = malloc (4096);
		509	res = 0;
		510
		511	for (;;)
		512	{
		513	ssize_t cnt;
		514
		515	cnt = pread (ifd, buf, 4096, offset);
		516
		517	if (cnt <= 0)
		518	{
		519	if (cnt && !res) res = -1;
		520	break;
		521	}
		522
		523	cnt = write (ofd, buf, cnt);
		524
		525	if (cnt <= 0)
		526	{
		527	if (cnt && !res) res = -1;
		528	break;
		529	}
		530
		531	offset += cnt;
		532	res += cnt;
		533	}
		534
		535	{
		536	int errorno = errno;
		537	free (buf);
		538	errno = errorno;
		539	}
		540	}
		541
		542	UNLOCK_FD (ofd);
		543
		544	return res;
		545	}
386		546
387	/*****************************************************************************/	547	/*****************************************************************************/
388		548
389	static void *	549	static void *
390	aio_proc (void *thr_arg)	550	aio_proc (void *thr_arg)
…		…
422	{	582	{
423	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	583	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
424	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	584	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
425		585
426	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	586	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
		587	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
427		588
428	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	589	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
429	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	590	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
430	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	591	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
431		592
…		…
480	\	641	\
481	Newz (0, req, 1, aio_cb); \	642	Newz (0, req, 1, aio_cb); \
482	if (!req) \	643	if (!req) \
483	croak ("out of memory during aio_req allocation"); \	644	croak ("out of memory during aio_req allocation"); \
484	\	645	\
485	req->callback = SvREFCNT_inc (callback);	646	req->callback = newSVsv (callback);
486		647
487	MODULE = IO::AIO PACKAGE = IO::AIO	648	MODULE = IO::AIO PACKAGE = IO::AIO
488		649
489	PROTOTYPES: ENABLE	650	PROTOTYPES: ENABLE
490		651
491	BOOT:	652	BOOT:
492	{	653	{
493	if (pipe (respipe))	654	create_pipe ();
494	croak ("unable to initialize result pipe");
495
496	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
497	croak ("cannot set result pipe to nonblocking mode");
498
499	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
500	croak ("cannot set result pipe to nonblocking mode");
501
502	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	655	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
503	}	656	}
504		657
505	void	658	void
506	min_parallel(nthreads)	659	min_parallel(nthreads)
…		…
562		715
563	void	716	void
564	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	717	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
565	SV * fh	718	SV * fh
566	UV offset	719	UV offset
567	IV length	720	UV length
568	SV * data	721	SV * data
569	IV dataoffset	722	UV dataoffset
570	SV * callback	723	SV * callback
571	ALIAS:	724	ALIAS:
572	aio_read = REQ_READ	725	aio_read = REQ_READ
573	aio_write = REQ_WRITE	726	aio_write = REQ_WRITE
574	PROTOTYPE: $$$$$;$	727	PROTOTYPE: $$$$$;$
…		…
611	: IoOFP (sv_2io (fh)));	764	: IoOFP (sv_2io (fh)));
612	req->offset = offset;	765	req->offset = offset;
613	req->length = length;	766	req->length = length;
614	req->data = SvREFCNT_inc (data);	767	req->data = SvREFCNT_inc (data);
615	req->dataptr = (char *)svptr + dataoffset;	768	req->dataptr = (char *)svptr + dataoffset;
616	req->callback = SvREFCNT_inc (callback);	769
		770	if (!SvREADONLY (data))
		771	{
		772	SvREADONLY_on (data);
		773	req->data2ptr = (void *)data;
		774	}
617		775
618	send_req (req);	776	send_req (req);
619	}	777	}
		778	}
		779
		780	void
		781	aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
		782	SV * out_fh
		783	SV * in_fh
		784	UV in_offset
		785	UV length
		786	SV * callback
		787	PROTOTYPE: $$$$;$
		788	CODE:
		789	{
		790	dREQ;
		791
		792	req->type = REQ_SENDFILE;
		793	req->fh = newSVsv (out_fh);
		794	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
		795	req->fh2 = newSVsv (in_fh);
		796	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
		797	req->offset = in_offset;
		798	req->length = length;
		799
		800	send_req (req);
620	}	801	}
621		802
622	void	803	void
623	aio_readahead(fh,offset,length,callback=&PL_sv_undef)	804	aio_readahead(fh,offset,length,callback=&PL_sv_undef)
624	SV * fh	805	SV * fh
…		…
650	{	831	{
651	dREQ;	832	dREQ;
652		833
653	New (0, req->statdata, 1, Stat_t);	834	New (0, req->statdata, 1, Stat_t);
654	if (!req->statdata)	835	if (!req->statdata)
		836	{
		837	free_req (req);
655	croak ("out of memory during aio_req->statdata allocation (sorry, i just leaked memory, too)");	838	croak ("out of memory during aio_req->statdata allocation");
		839	}
656		840
657	if (SvPOK (fh_or_path))	841	if (SvPOK (fh_or_path))
658	{	842	{
659	req->type = ix;	843	req->type = ix;
660	req->data = newSVsv (fh_or_path);	844	req->data = newSVsv (fh_or_path);

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.25 by root, Wed Aug 17 03:16:56 2005 UTC vs. Revision 1.35 by root, Tue Aug 23 01:16:50 2005 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.25 by root, Wed Aug 17 03:16:56 2005 UTC vs.
Revision 1.35 by root, Tue Aug 23 01:16:50 2005 UTC