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

Comparing Linux-AIO/AIO.xs (file contents):
Revision 1.13 by root, Mon Apr 1 20:30:08 2002 UTC vs.
Revision 1.27 by root, Fri Jul 8 03:10:00 2005 UTC

…		…
		1	#define PERL_NO_GET_CONTEXT
		2
1	#include "EXTERN.h"	3	#include "EXTERN.h"
2	#include "perl.h"	4	#include "perl.h"
3	#include "XSUB.h"	5	#include "XSUB.h"
4		6
5	#include <sys/types.h>	7	#include <sys/types.h>
6	#include <sys/stat.h>	8	#include <sys/stat.h>
7	#include <unistd.h>	9	#include <unistd.h>
8	#include <fcntl.h>	10	#include <fcntl.h>
9	#include <signal.h>	11	#include <signal.h>
10	#include <sched.h>	12	#include <sched.h>
		13	#include <endian.h>
11		14
12	typedef void InputStream; / hack, but 5.6.1 is simply toooo old ;) */	15	typedef void InputStream; / hack, but 5.6.1 is simply toooo old ;) */
13	typedef void OutputStream; / hack, but 5.6.1 is simply toooo old ;) */	16	typedef void OutputStream; / hack, but 5.6.1 is simply toooo old ;) */
14	typedef void InOutStream; / hack, but 5.6.1 is simply toooo old ;) */	17	typedef void InOutStream; / hack, but 5.6.1 is simply toooo old ;) */
15		18
16	#define STACKSIZE 1024 /* yeah */	19	#if __i386 \|\| __amd64
		20	# define STACKSIZE ( 256 * sizeof (long))
		21	#elif __ia64
		22	# define STACKSIZE (8192 * sizeof (long))
		23	#else
		24	# define STACKSIZE ( 512 * sizeof (long))
		25	#endif
17		26
18	enum { REQ_QUIT, REQ_OPEN, REQ_CLOSE, REQ_READ, REQ_WRITE, REQ_STAT, REQ_LSTAT, REQ_FSTAT};	27	enum {
		28	REQ_QUIT,
		29	REQ_OPEN, REQ_CLOSE, REQ_READ, REQ_WRITE,
		30	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK
		31	};
19		32
20	typedef struct {	33	typedef struct {
21	char stack[STACKSIZE];	34	char stack[STACKSIZE];
22	} aio_thread;	35	} aio_thread;
23		36
24	typedef struct {	37	typedef struct aio_cb {
		38	struct aio_cb *next;
		39
25	int type;	40	int type;
26	aio_thread *thread;	41	aio_thread *thread;
27
28	SV *savesv;
29		42
30	int fd;	43	int fd;
31	off_t offset;	44	off_t offset;
32	size_t length;	45	size_t length;
33	ssize_t result;	46	ssize_t result;
35	int errorno;	48	int errorno;
36	SV data, callback;	49	SV data, callback;
37	void *dataptr;	50	void *dataptr;
38	STRLEN dataoffset;	51	STRLEN dataoffset;
39		52
40	struct stat64 *statdata;	53	Stat_t *statdata;
41	} aio_cb;	54	} aio_cb;
42		55
43	typedef aio_cb *aio_req;	56	typedef aio_cb *aio_req;
44		57
45	static int started;	58	static int started;
46	static int nreqs;	59	static int nreqs;
47	static int reqpipe[2], respipe[2];	60	static int reqpipe[2], respipe[2];
48		61
		62	static aio_req qs, qe; /* queue start, queue end */
		63
49	static int aio_proc(void *arg);	64	static int aio_proc(void *arg);
50		65
51	static void	66	static void
52	start_thread(void)	67	start_thread (void)
53	{	68	{
54	aio_thread *thr;	69	aio_thread *thr;
55		70
56	New (0, thr, 1, aio_thread);	71	New (0, thr, 1, aio_thread);
57		72
58	if (clone (aio_proc,	73	if (clone (aio_proc,
59	&(thr->stack[STACKSIZE]),	74	&(thr->stack[STACKSIZE - 16]),
60	CLONE_VM\|CLONE_FS\|CLONE_FILES\|CLONE_SIGHAND,	75	CLONE_VM\|CLONE_FS\|CLONE_FILES,
61	thr) >= 0)	76	thr) >= 0)
62	started++;	77	started++;
63	else	78	else
64	Safefree (thr);	79	Safefree (thr);
65	}	80	}
66		81
67	static void	82	static void
		83	send_reqs (void)
		84	{
		85	/* this write is atomic */
		86	while (qs && write (reqpipe[1], &qs, sizeof qs) == sizeof qs)
		87	{
		88	qs = qs->next;
		89	if (!qs) qe = 0;
		90	}
		91	}
		92
		93	static void
		94	send_req (aio_req req)
		95	{
		96	nreqs++;
		97	req->next = 0;
		98
		99	if (qe)
		100	{
		101	qe->next = req;
		102	qe = req;
		103	}
		104	else
		105	qe = qs = req;
		106
		107	send_reqs ();
		108	}
		109
		110	static void
68	end_thread(void)	111	end_thread (void)
69	{	112	{
70	aio_req req;	113	aio_req req;
71	New (0, req, 1, aio_cb);	114	New (0, req, 1, aio_cb);
72	req->type = REQ_QUIT;	115	req->type = REQ_QUIT;
73	write (reqpipe[1], &req, sizeof (aio_req));	116
		117	send_req (req);
74	}	118	}
75		119
76	static void	120	static void
77	send_req (aio_req req)	121	read_write (pTHX_
78	{
79	nreqs++;
80	write (reqpipe[1], &req, sizeof (aio_req));
81	}
82
83	static void
84	read_write (pTHX_ int dowrite, int fd, off_t offset, size_t length,	122	int dowrite, int fd, off_t offset, size_t length,
85	SV data, STRLEN dataoffset, SVcallback)	123	SV data, STRLEN dataoffset, SV callback)
86	{	124	{
87	aio_req req;	125	aio_req req;
88	STRLEN svlen;	126	STRLEN svlen;
89	char *svptr = SvPV (data, svlen);	127	char *svptr = SvPV (data, svlen);
90		128
…		…
110	}	148	}
111		149
112	if (length < 0)	150	if (length < 0)
113	croak ("length must not be negative");	151	croak ("length must not be negative");
114		152
115	New (0, req, 1, aio_cb);	153	Newz (0, req, 1, aio_cb);
116		154
117	if (!req)	155	if (!req)
118	croak ("out of memory during aio_req allocation");	156	croak ("out of memory during aio_req allocation");
119		157
120	req->type = dowrite ? REQ_WRITE : REQ_READ;	158	req->type = dowrite ? REQ_WRITE : REQ_READ;
…		…
126	req->callback = SvREFCNT_inc (callback);	164	req->callback = SvREFCNT_inc (callback);
127		165
128	send_req (req);	166	send_req (req);
129	}	167	}
130		168
		169	static void
		170	poll_wait ()
		171	{
		172	fd_set rfd;
		173	FD_ZERO(&rfd);
		174	FD_SET(respipe[0], &rfd);
		175
		176	select (respipe[0] + 1, &rfd, 0, 0, 0);
		177	}
		178
131	static int	179	static int
132	poll_cb (pTHX)	180	poll_cb (pTHX)
133	{	181	{
134	dSP;	182	dSP;
135	int count = 0;	183	int count = 0;
136	aio_req req;	184	aio_req req;
137		185
138	while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req))	186	while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req))
139	{	187	{
		188	nreqs--;
		189
140	if (req->type == REQ_QUIT)	190	if (req->type == REQ_QUIT)
141	{	191	{
142	Safefree (req->thread);	192	Safefree (req->thread);
143	started--;	193	started--;
144	}	194	}
145	else	195	else
146	{	196	{
147	int errorno = errno;	197	int errorno = errno;
148	errno = req->errorno;	198	errno = req->errorno;
149		199
150	if (req->savesv)
151	SvREFCNT_dec (req->savesv);
152
153	if (req->type == REQ_READ)	200	if (req->type == REQ_READ)
154	SvCUR_set (req->data, req->dataoffset	201	SvCUR_set (req->data, req->dataoffset
155	+ req->result > 0 ? req->result : 0);	202	+ req->result > 0 ? req->result : 0);
156		203
		204	if (req->data)
		205	SvREFCNT_dec (req->data);
		206
157	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)	207	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)
158	{	208	{
159	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	209	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
160	PL_laststatval = req->result;	210	PL_laststatval = req->result;
161	PL_statcache.st_dev = req->statdata->st_dev;	211	PL_statcache = *(req->statdata);
162	PL_statcache.st_ino = req->statdata->st_ino;
163	PL_statcache.st_mode = req->statdata->st_mode;
164	PL_statcache.st_nlink = req->statdata->st_nlink;
165	PL_statcache.st_uid = req->statdata->st_uid;
166	PL_statcache.st_gid = req->statdata->st_gid;
167	PL_statcache.st_rdev = req->statdata->st_rdev;
168	PL_statcache.st_size = req->statdata->st_size;
169	PL_statcache.st_atime = req->statdata->st_atime;
170	PL_statcache.st_mtime = req->statdata->st_mtime;
171	PL_statcache.st_ctime = req->statdata->st_ctime;
172	PL_statcache.st_blksize = req->statdata->st_blksize;
173	PL_statcache.st_blocks = req->statdata->st_blocks;
174		212
175	Safefree (req->statdata);	213	Safefree (req->statdata);
176	}	214	}
177		215
178	PUSHMARK (SP);	216	PUSHMARK (SP);
179	XPUSHs (sv_2mortal (newSViv (req->result)));	217	XPUSHs (sv_2mortal (newSViv (req->result)));
180	PUTBACK;	218	PUTBACK;
181	call_sv (req->callback, G_VOID);	219	call_sv (req->callback, G_VOID);
182	SPAGAIN;	220	SPAGAIN;
183		221
184	SvREFCNT_dec (req->data);	222	if (req->callback)
185	SvREFCNT_dec (req->callback);	223	SvREFCNT_dec (req->callback);
186		224
187	errno = errorno;	225	errno = errorno;
188	nreqs--;
189	count++;	226	count++;
190	}	227	}
191		228
192	Safefree (req);	229	Safefree (req);
193	}	230	}
194		231
		232	if (qs)
		233	send_reqs ();
		234
195	return count;	235	return count;
196	}	236	}
197		237
198	static sigset_t fullsigset;	238	static sigset_t fullsigset;
199		239
200	#undef errno	240	#undef errno
201	#include <asm/unistd.h>	241	#include <asm/unistd.h>
		242	#include <sys/prctl.h>
		243
		244	#if BYTE_ORDER == LITTLE_ENDIAN
		245	# define LONG_LONG_PAIR(HI, LO) LO, HI
		246	#elif BYTE_ORDER == BIG_ENDIAN
		247	# define LONG_LONG_PAIR(HI, LO) HI, LO
		248	#endif
		249
		250	#if __alpha \|\| __ia64 \|\| __hppa \|\| __v850__
		251	# define stat kernelstat
		252	# define stat64 kernelstat64
		253	# include <asm/stat.h>
		254	# undef stat
		255	# undef stat64
		256	#else
		257	# define kernelstat stat
		258	# define kernelstat64 stat64
		259	#endif
		260
		261	#define COPY_STATDATA \
		262	req->statdata->st_dev = statdata.st_dev; \
		263	req->statdata->st_ino = statdata.st_ino; \
		264	req->statdata->st_mode = statdata.st_mode; \
		265	req->statdata->st_nlink = statdata.st_nlink; \
		266	req->statdata->st_uid = statdata.st_uid; \
		267	req->statdata->st_gid = statdata.st_gid; \
		268	req->statdata->st_rdev = statdata.st_rdev; \
		269	req->statdata->st_size = statdata.st_size; \
		270	req->statdata->st_atime = statdata.st_atime; \
		271	req->statdata->st_mtime = statdata.st_mtime; \
		272	req->statdata->st_ctime = statdata.st_ctime; \
		273	req->statdata->st_blksize = statdata.st_blksize; \
		274	req->statdata->st_blocks = statdata.st_blocks; \
202		275
203	static int	276	static int
204	aio_proc(void *thr_arg)	277	aio_proc (void *thr_arg)
205	{	278	{
206	aio_thread *thr = thr_arg;	279	aio_thread *thr = thr_arg;
207	aio_req req;	280	aio_req req;
208	int errno;	281	int errno;
209		282
		283	/* this is very much kernel-specific :(:(:( */
210	/* we rely on gcc's ability to create closures. */	284	/* we rely on gcc's ability to create closures. */
211	_syscall3(int,read,int,fd,char *,buf,size_t,count)	285	_syscall3(int,read,int,fd,char *,buf,size_t,count)
212	_syscall3(int,write,int,fd,char *,buf,size_t,count)	286	_syscall3(int,write,int,fd,char *,buf,size_t,count)
213		287
214	_syscall3(int,open,char *,pathname,int,flags,mode_t,mode)	288	_syscall3(int,open,char *,pathname,int,flags,mode_t,mode)
215	_syscall1(int,close,int,fd)	289	_syscall1(int,close,int,fd)
216		290
		291	#if __NR_pread64
		292	_syscall5(int,pread64,int,fd,char *,buf,size_t,count,unsigned int,offset_lh,unsigned int,offset_hl)
		293	_syscall5(int,pwrite64,int,fd,char *,buf,size_t,count,unsigned int,offset_lh,unsigned int,offset_hl)
		294	#elif __NR_pread
217	_syscall4(int,pread,int,fd,char *,buf,size_t,count,off_t,offset)	295	_syscall4(int,pread,int,fd,char *,buf,size_t,count,offset_t,offset)
218	_syscall4(int,pwrite,int,fd,char *,buf,size_t,count,off_t,offset)	296	_syscall4(int,pwrite,int,fd,char *,buf,size_t,count,offset_t,offset)
		297	#else
		298	# error "neither pread nor pread64 defined"
		299	#endif
219		300
		301
		302	#if __NR_stat64
220	_syscall2(int,stat64, const char , filename, struct stat64 , buf)	303	_syscall2(int,stat64, const char , filename, struct kernelstat64 , buf)
221	_syscall2(int,lstat64, const char , filename, struct stat64 , buf)	304	_syscall2(int,lstat64, const char , filename, struct kernelstat64 , buf)
222	_syscall2(int,fstat64, int, fd, struct stat64 *, buf)	305	_syscall2(int,fstat64, int, fd, struct kernelstat64 *, buf)
		306	#elif __NR_stat
		307	_syscall2(int,stat, const char , filename, struct kernelstat , buf)
		308	_syscall2(int,lstat, const char , filename, struct kernelstat , buf)
		309	_syscall2(int,fstat, int, fd, struct kernelstat *, buf)
		310	#else
		311	# error "neither stat64 nor stat defined"
		312	#endif
		313
		314	_syscall1(int,unlink, char *, filename);
223		315
224	sigprocmask (SIG_SETMASK, &fullsigset, 0);	316	sigprocmask (SIG_SETMASK, &fullsigset, 0);
		317	prctl (PR_SET_PDEATHSIG, SIGKILL);
225		318
226	/* then loop */	319	/* then loop */
227	while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req))	320	while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req))
228	{	321	{
229	req->thread = thr;	322	req->thread = thr;
230	errno = 0;	323	errno = 0; /* strictly unnecessary */
231		324
232	if (req->type == REQ_READ)	325	switch (req->type)
233	req->result = pread (req->fd, req->dataptr, req->length, req->offset);
234	else if (req->type == REQ_WRITE)
235	req->result = pwrite (req->fd, req->dataptr, req->length, req->offset);
236	else if (req->type == REQ_OPEN)
237	req->result = open (req->dataptr, req->fd, req->mode);
238	else if (req->type == REQ_CLOSE)
239	req->result = close (req->fd);
240	else if (req->type == REQ_STAT)
241	req->result = stat64 (req->dataptr, req->statdata);
242	else if (req->type == REQ_LSTAT)
243	req->result = lstat64 (req->dataptr, req->statdata);
244	else if (req->type == REQ_FSTAT)
245	req->result = fstat64 (req->fd, req->statdata);
246	else
247	{	326	{
		327	#if __NR_pread64
		328	case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length,
		329	LONG_LONG_PAIR (req->offset >> 32, req->offset & 0xffffffff)); break;
		330	case REQ_WRITE: req->result = pwrite64(req->fd, req->dataptr, req->length,
		331	LONG_LONG_PAIR (req->offset >> 32, req->offset & 0xffffffff)); break;
		332	#else
		333	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
		334	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
		335	#endif
		336	#if __NR_stat64
		337	struct kernelstat64 statdata;
		338	case REQ_STAT: req->result = stat64 (req->dataptr, &statdata); COPY_STATDATA; break;
		339	case REQ_LSTAT: req->result = lstat64 (req->dataptr, &statdata); COPY_STATDATA; break;
		340	case REQ_FSTAT: req->result = fstat64 (req->fd, &statdata); COPY_STATDATA; break;
		341	#else
		342	struct kernelstat statdata;
		343	case REQ_STAT: req->result = stat (req->dataptr, &statdata); COPY_STATDATA; break;
		344	case REQ_LSTAT: req->result = lstat (req->dataptr, &statdata); COPY_STATDATA; break;
		345	case REQ_FSTAT: req->result = fstat (req->fd, &statdata); COPY_STATDATA; break;
		346	#endif
		347	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
		348	case REQ_CLOSE: req->result = close (req->fd); break;
		349	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
		350
		351	case REQ_QUIT:
		352	default:
248	write (respipe[1], (void *)&req, sizeof (req));	353	write (respipe[1], (void *)&req, sizeof (req));
249	break;	354	return 0;
250	}	355	}
251		356
252	req->errorno = errno;	357	req->errorno = errno;
253	write (respipe[1], (void *)&req, sizeof (req));	358	write (respipe[1], (void *)&req, sizeof (req));
254	}	359	}
…		…
266	sigdelset (&fullsigset, SIGABRT);	371	sigdelset (&fullsigset, SIGABRT);
267	sigdelset (&fullsigset, SIGINT);	372	sigdelset (&fullsigset, SIGINT);
268		373
269	if (pipe (reqpipe) \|\| pipe (respipe))	374	if (pipe (reqpipe) \|\| pipe (respipe))
270	croak ("unable to initialize request or result pipe");	375	croak ("unable to initialize request or result pipe");
		376
		377	if (fcntl (reqpipe[1], F_SETFL, O_NONBLOCK))
		378	croak ("cannot set result pipe to nonblocking mode");
271		379
272	if (fcntl (respipe[0], F_SETFL, O_NONBLOCK))	380	if (fcntl (respipe[0], F_SETFL, O_NONBLOCK))
273	croak ("cannot set result pipe to nonblocking mode");	381	croak ("cannot set result pipe to nonblocking mode");
274	}	382	}
275		383
…		…
291	{	399	{
292	end_thread ();	400	end_thread ();
293	cur--;	401	cur--;
294	}	402	}
295		403
296	poll_cb ();
297	while (started > nthreads)	404	while (started > nthreads)
298	{	405	{
299	sched_yield ();	406	poll_wait ();
300	fcntl (respipe[0], F_SETFL, 0);
301	poll_cb ();	407	poll_cb (aTHX);
302	fcntl (respipe[0], F_SETFL, O_NONBLOCK);
303	}	408	}
304		409
305	void	410	void
306	aio_open(pathname,flags,mode,callback)	411	aio_open(pathname,flags,mode,callback)
307	SV * pathname	412	SV * pathname
…		…
310	SV * callback	415	SV * callback
311	PROTOTYPE: $$$$	416	PROTOTYPE: $$$$
312	CODE:	417	CODE:
313	aio_req req;	418	aio_req req;
314		419
315	New (0, req, 1, aio_cb);	420	Newz (0, req, 1, aio_cb);
316		421
317	if (!req)	422	if (!req)
318	croak ("out of memory during aio_req allocation");	423	croak ("out of memory during aio_req allocation");
319		424
320	req->type = REQ_OPEN;	425	req->type = REQ_OPEN;
321	req->savesv = newSVsv (pathname);	426	req->data = newSVsv (pathname);
322	req->dataptr = SvPV_nolen (req->savesv);	427	req->dataptr = SvPV_nolen (req->data);
323	req->fd = flags;	428	req->fd = flags;
324	req->mode = mode;	429	req->mode = mode;
325	req->callback = SvREFCNT_inc (callback);	430	req->callback = SvREFCNT_inc (callback);
326		431
327	send_req (req);	432	send_req (req);
328		433
329	void	434	void
330	aio_close(fh,callback)	435	aio_close(fh,callback)
331	InputStream fh	436	InputStream fh
332	SV * callback	437	SV * callback
333	PROTOTYPE: $	438	PROTOTYPE: $$
334	CODE:	439	CODE:
335	aio_req req;	440	aio_req req;
336		441
337	New (0, req, 1, aio_cb);	442	Newz (0, req, 1, aio_cb);
338		443
339	if (!req)	444	if (!req)
340	croak ("out of memory during aio_req allocation");	445	croak ("out of memory during aio_req allocation");
341		446
342	req->type = REQ_CLOSE;	447	req->type = REQ_CLOSE;
…		…
377	ALIAS:	482	ALIAS:
378	aio_lstat = 1	483	aio_lstat = 1
379	CODE:	484	CODE:
380	aio_req req;	485	aio_req req;
381		486
382	New (0, req, 1, aio_cb);	487	Newz (0, req, 1, aio_cb);
383		488
384	if (!req)	489	if (!req)
385	croak ("out of memory during aio_req allocation");	490	croak ("out of memory during aio_req allocation");
386		491
387	New (0, req->statdata, 1, struct stat64);	492	New (0, req->statdata, 1, Stat_t);
388		493
389	if (!req->statdata)	494	if (!req->statdata)
390	croak ("out of memory during aio_req->statdata allocation");	495	croak ("out of memory during aio_req->statdata allocation");
391		496
392	if (SvPOK (fh_or_path))	497	if (SvPOK (fh_or_path))
393	{	498	{
394	req->type = ix ? REQ_LSTAT : REQ_STAT;	499	req->type = ix ? REQ_LSTAT : REQ_STAT;
395	req->savesv = newSVsv (fh_or_path);	500	req->data = newSVsv (fh_or_path);
396	req->dataptr = SvPV_nolen (req->savesv);	501	req->dataptr = SvPV_nolen (req->data);
397	}	502	}
398	else	503	else
399	{	504	{
400	req->type = REQ_FSTAT;	505	req->type = REQ_FSTAT;
401	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	506	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
…		…
403		508
404	req->callback = SvREFCNT_inc (callback);	509	req->callback = SvREFCNT_inc (callback);
405		510
406	send_req (req);	511	send_req (req);
407		512
		513	void
		514	aio_unlink(pathname,callback)
		515	SV * pathname
		516	SV * callback
		517	PROTOTYPE: $$
		518	CODE:
		519	aio_req req;
		520
		521	Newz (0, req, 1, aio_cb);
		522
		523	if (!req)
		524	croak ("out of memory during aio_req allocation");
		525
		526	req->type = REQ_UNLINK;
		527	req->data = newSVsv (pathname);
		528	req->dataptr = SvPV_nolen (req->data);
		529	req->callback = SvREFCNT_inc (callback);
		530
		531	send_req (req);
		532
408	int	533	int
409	poll_fileno()	534	poll_fileno()
410	PROTOTYPE:	535	PROTOTYPE:
411	CODE:	536	CODE:
412	RETVAL = respipe[0];	537	RETVAL = respipe[0];
…		…
419	CODE:	544	CODE:
420	RETVAL = poll_cb (aTHX);	545	RETVAL = poll_cb (aTHX);
421	OUTPUT:	546	OUTPUT:
422	RETVAL	547	RETVAL
423		548
		549	void
		550	poll_wait()
		551	PROTOTYPE:
		552	CODE:
		553	poll_wait ();
		554
424	int	555	int
425	nreqs()	556	nreqs()
426	PROTOTYPE:	557	PROTOTYPE:
427	CODE:	558	CODE:
428	RETVAL = nreqs;	559	RETVAL = nreqs;

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Comparing Linux-AIO/AIO.xs (file contents): Revision 1.13 by root, Mon Apr 1 20:30:08 2002 UTC vs. Revision 1.27 by root, Fri Jul 8 03:10:00 2005 UTC

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Comparing Linux-AIO/AIO.xs (file contents):
Revision 1.13 by root, Mon Apr 1 20:30:08 2002 UTC vs.
Revision 1.27 by root, Fri Jul 8 03:10:00 2005 UTC