[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 1.26 by root, Thu Jul 7 23:17:23 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	// 128 seems to be enough most everywhere. alpha needs 256.
		20	#define STACKSIZE (256 * sizeof (long))
17		21
18	enum { REQ_QUIT, REQ_OPEN, REQ_CLOSE, REQ_READ, REQ_WRITE, REQ_STAT, REQ_LSTAT, REQ_FSTAT};	22	enum {
		23	REQ_QUIT,
		24	REQ_OPEN, REQ_CLOSE, REQ_READ, REQ_WRITE,
		25	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK
		26	};
19		27
20	typedef struct {	28	typedef struct {
21	char stack[STACKSIZE];	29	char stack[STACKSIZE];
22	} aio_thread;	30	} aio_thread;
23		31
24	typedef struct {	32	typedef struct aio_cb {
		33	struct aio_cb *next;
		34
25	int type;	35	int type;
26	aio_thread *thread;	36	aio_thread *thread;
27
28	SV *savesv;
29		37
30	int fd;	38	int fd;
31	off_t offset;	39	off_t offset;
32	size_t length;	40	size_t length;
33	ssize_t result;	41	ssize_t result;
35	int errorno;	43	int errorno;
36	SV data, callback;	44	SV data, callback;
37	void *dataptr;	45	void *dataptr;
38	STRLEN dataoffset;	46	STRLEN dataoffset;
39		47
40	struct stat64 *statdata;	48	Stat_t *statdata;
41	} aio_cb;	49	} aio_cb;
42		50
43	typedef aio_cb *aio_req;	51	typedef aio_cb *aio_req;
44		52
45	static int started;	53	static int started;
46	static int nreqs;	54	static int nreqs;
47	static int reqpipe[2], respipe[2];	55	static int reqpipe[2], respipe[2];
48		56
		57	static aio_req qs, qe; /* queue start, queue end */
		58
49	static int aio_proc(void *arg);	59	static int aio_proc(void *arg);
50		60
51	static void	61	static void
52	start_thread(void)	62	start_thread (void)
53	{	63	{
54	aio_thread *thr;	64	aio_thread *thr;
55		65
56	New (0, thr, 1, aio_thread);	66	New (0, thr, 1, aio_thread);
57		67
58	if (clone (aio_proc,	68	if (clone (aio_proc,
59	&(thr->stack[STACKSIZE]),	69	&(thr->stack[STACKSIZE - sizeof (long)]),
60	CLONE_VM\|CLONE_FS\|CLONE_FILES\|CLONE_SIGHAND,	70	CLONE_VM\|CLONE_FS\|CLONE_FILES,
61	thr) >= 0)	71	thr) >= 0)
62	started++;	72	started++;
63	else	73	else
64	Safefree (thr);	74	Safefree (thr);
65	}	75	}
66		76
67	static void	77	static void
		78	send_reqs (void)
		79	{
		80	/* this write is atomic */
		81	while (qs && write (reqpipe[1], &qs, sizeof qs) == sizeof qs)
		82	{
		83	qs = qs->next;
		84	if (!qs) qe = 0;
		85	}
		86	}
		87
		88	static void
		89	send_req (aio_req req)
		90	{
		91	nreqs++;
		92	req->next = 0;
		93
		94	if (qe)
		95	{
		96	qe->next = req;
		97	qe = req;
		98	}
		99	else
		100	qe = qs = req;
		101
		102	send_reqs ();
		103	}
		104
		105	static void
68	end_thread(void)	106	end_thread (void)
69	{	107	{
70	aio_req req;	108	aio_req req;
71	New (0, req, 1, aio_cb);	109	New (0, req, 1, aio_cb);
72	req->type = REQ_QUIT;	110	req->type = REQ_QUIT;
73	write (reqpipe[1], &req, sizeof (aio_req));	111
		112	send_req (req);
74	}	113	}
75		114
76	static void	115	static void
77	send_req (aio_req req)	116	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,	117	int dowrite, int fd, off_t offset, size_t length,
85	SV data, STRLEN dataoffset, SVcallback)	118	SV data, STRLEN dataoffset, SV callback)
86	{	119	{
87	aio_req req;	120	aio_req req;
88	STRLEN svlen;	121	STRLEN svlen;
89	char *svptr = SvPV (data, svlen);	122	char *svptr = SvPV (data, svlen);
90		123
…		…
110	}	143	}
111		144
112	if (length < 0)	145	if (length < 0)
113	croak ("length must not be negative");	146	croak ("length must not be negative");
114		147
115	New (0, req, 1, aio_cb);	148	Newz (0, req, 1, aio_cb);
116		149
117	if (!req)	150	if (!req)
118	croak ("out of memory during aio_req allocation");	151	croak ("out of memory during aio_req allocation");
119		152
120	req->type = dowrite ? REQ_WRITE : REQ_READ;	153	req->type = dowrite ? REQ_WRITE : REQ_READ;
…		…
126	req->callback = SvREFCNT_inc (callback);	159	req->callback = SvREFCNT_inc (callback);
127		160
128	send_req (req);	161	send_req (req);
129	}	162	}
130		163
		164	static void
		165	poll_wait ()
		166	{
		167	fd_set rfd;
		168	FD_ZERO(&rfd);
		169	FD_SET(respipe[0], &rfd);
		170
		171	select (respipe[0] + 1, &rfd, 0, 0, 0);
		172	}
		173
131	static int	174	static int
132	poll_cb (pTHX)	175	poll_cb (pTHX)
133	{	176	{
134	dSP;	177	dSP;
135	int count = 0;	178	int count = 0;
136	aio_req req;	179	aio_req req;
137		180
138	while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req))	181	while (read (respipe[0], (void *)&req, sizeof (req)) == sizeof (req))
139	{	182	{
		183	nreqs--;
		184
140	if (req->type == REQ_QUIT)	185	if (req->type == REQ_QUIT)
141	{	186	{
142	Safefree (req->thread);	187	Safefree (req->thread);
143	started--;	188	started--;
144	}	189	}
145	else	190	else
146	{	191	{
147	int errorno = errno;	192	int errorno = errno;
148	errno = req->errorno;	193	errno = req->errorno;
149		194
150	if (req->savesv)
151	SvREFCNT_dec (req->savesv);
152
153	if (req->type == REQ_READ)	195	if (req->type == REQ_READ)
154	SvCUR_set (req->data, req->dataoffset	196	SvCUR_set (req->data, req->dataoffset
155	+ req->result > 0 ? req->result : 0);	197	+ req->result > 0 ? req->result : 0);
156		198
		199	if (req->data)
		200	SvREFCNT_dec (req->data);
		201
157	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)	202	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)
158	{	203	{
159	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	204	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
160	PL_laststatval = req->result;	205	PL_laststatval = req->result;
161	PL_statcache.st_dev = req->statdata->st_dev;	206	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		207
175	Safefree (req->statdata);	208	Safefree (req->statdata);
176	}	209	}
177		210
178	PUSHMARK (SP);	211	PUSHMARK (SP);
179	XPUSHs (sv_2mortal (newSViv (req->result)));	212	XPUSHs (sv_2mortal (newSViv (req->result)));
180	PUTBACK;	213	PUTBACK;
181	call_sv (req->callback, G_VOID);	214	call_sv (req->callback, G_VOID);
182	SPAGAIN;	215	SPAGAIN;
183		216
184	SvREFCNT_dec (req->data);	217	if (req->callback)
185	SvREFCNT_dec (req->callback);	218	SvREFCNT_dec (req->callback);
186		219
187	errno = errorno;	220	errno = errorno;
188	nreqs--;
189	count++;	221	count++;
190	}	222	}
191		223
192	Safefree (req);	224	Safefree (req);
193	}	225	}
194		226
		227	if (qs)
		228	send_reqs ();
		229
195	return count;	230	return count;
196	}	231	}
197		232
198	static sigset_t fullsigset;	233	static sigset_t fullsigset;
199		234
200	#undef errno	235	#undef errno
201	#include <asm/unistd.h>	236	#include <asm/unistd.h>
		237	#include <sys/prctl.h>
		238
		239	#if BYTE_ORDER == LITTLE_ENDIAN
		240	# define LONG_LONG_PAIR(HI, LO) LO, HI
		241	#elif BYTE_ORDER == BIG_ENDIAN
		242	# define LONG_LONG_PAIR(HI, LO) HI, LO
		243	#endif
		244
		245	#if __alpha \|\| __ia64 \|\| __hppa \|\| __v850__
		246	# define stat kernelstat
		247	# define stat64 kernelstat64
		248	# include <asm/stat.h>
		249	# undef stat
		250	# undef stat64
		251	#else
		252	# define kernelstat stat
		253	# define kernelstat64 stat64
		254	#endif
		255
		256	#define COPY_STATDATA \
		257	req->statdata->st_dev = statdata.st_dev; \
		258	req->statdata->st_ino = statdata.st_ino; \
		259	req->statdata->st_mode = statdata.st_mode; \
		260	req->statdata->st_nlink = statdata.st_nlink; \
		261	req->statdata->st_uid = statdata.st_uid; \
		262	req->statdata->st_gid = statdata.st_gid; \
		263	req->statdata->st_rdev = statdata.st_rdev; \
		264	req->statdata->st_size = statdata.st_size; \
		265	req->statdata->st_atime = statdata.st_atime; \
		266	req->statdata->st_mtime = statdata.st_mtime; \
		267	req->statdata->st_ctime = statdata.st_ctime; \
		268	req->statdata->st_blksize = statdata.st_blksize; \
		269	req->statdata->st_blocks = statdata.st_blocks; \
202		270
203	static int	271	static int
204	aio_proc(void *thr_arg)	272	aio_proc (void *thr_arg)
205	{	273	{
206	aio_thread *thr = thr_arg;	274	aio_thread *thr = thr_arg;
207	aio_req req;	275	aio_req req;
208	int errno;	276	int errno;
209		277
		278	/* this is very much kernel-specific :(:(:( */
210	/* we rely on gcc's ability to create closures. */	279	/* we rely on gcc's ability to create closures. */
211	_syscall3(int,read,int,fd,char *,buf,size_t,count)	280	_syscall3(int,read,int,fd,char *,buf,size_t,count)
212	_syscall3(int,write,int,fd,char *,buf,size_t,count)	281	_syscall3(int,write,int,fd,char *,buf,size_t,count)
213		282
214	_syscall3(int,open,char *,pathname,int,flags,mode_t,mode)	283	_syscall3(int,open,char *,pathname,int,flags,mode_t,mode)
215	_syscall1(int,close,int,fd)	284	_syscall1(int,close,int,fd)
216		285
		286	#if __NR_pread64
		287	_syscall5(int,pread64,int,fd,char *,buf,size_t,count,unsigned int,offset_lh,unsigned int,offset_hl)
		288	_syscall5(int,pwrite64,int,fd,char *,buf,size_t,count,unsigned int,offset_lh,unsigned int,offset_hl)
		289	#elif __NR_pread
217	_syscall4(int,pread,int,fd,char *,buf,size_t,count,off_t,offset)	290	_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)	291	_syscall4(int,pwrite,int,fd,char *,buf,size_t,count,offset_t,offset)
		292	#else
		293	# error "neither pread nor pread64 defined"
		294	#endif
219		295
		296
		297	#if __NR_stat64
220	_syscall2(int,stat64, const char , filename, struct stat64 , buf)	298	_syscall2(int,stat64, const char , filename, struct kernelstat64 , buf)
221	_syscall2(int,lstat64, const char , filename, struct stat64 , buf)	299	_syscall2(int,lstat64, const char , filename, struct kernelstat64 , buf)
222	_syscall2(int,fstat64, int, fd, struct stat64 *, buf)	300	_syscall2(int,fstat64, int, fd, struct kernelstat64 *, buf)
		301	#elif __NR_stat
		302	_syscall2(int,stat, const char , filename, struct kernelstat , buf)
		303	_syscall2(int,lstat, const char , filename, struct kernelstat , buf)
		304	_syscall2(int,fstat, int, fd, struct kernelstat *, buf)
		305	#else
		306	# error "neither stat64 nor stat defined"
		307	#endif
		308
		309	_syscall1(int,unlink, char *, filename);
223		310
224	sigprocmask (SIG_SETMASK, &fullsigset, 0);	311	sigprocmask (SIG_SETMASK, &fullsigset, 0);
		312	prctl (PR_SET_PDEATHSIG, SIGKILL);
225		313
226	/* then loop */	314	/* then loop */
227	while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req))	315	while (read (reqpipe[0], (void *)&req, sizeof (req)) == sizeof (req))
228	{	316	{
229	req->thread = thr;	317	req->thread = thr;
230	errno = 0;	318	errno = 0; /* strictly unnecessary */
231		319
232	if (req->type == REQ_READ)	320	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	{	321	{
		322	#if __NR_pread64
		323	case REQ_READ: req->result = pread64 (req->fd, req->dataptr, req->length,
		324	LONG_LONG_PAIR (req->offset >> 32, req->offset & 0xffffffff)); break;
		325	case REQ_WRITE: req->result = pwrite64(req->fd, req->dataptr, req->length,
		326	LONG_LONG_PAIR (req->offset >> 32, req->offset & 0xffffffff)); break;
		327	#else
		328	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
		329	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
		330	#endif
		331	#if __NR_stat64
		332	struct kernelstat64 statdata;
		333	case REQ_STAT: req->result = stat64 (req->dataptr, &statdata); COPY_STATDATA; break;
		334	case REQ_LSTAT: req->result = lstat64 (req->dataptr, &statdata); COPY_STATDATA; break;
		335	case REQ_FSTAT: req->result = fstat64 (req->fd, &statdata); COPY_STATDATA; break;
		336	#else
		337	struct kernelstat statdata;
		338	case REQ_STAT: req->result = stat (req->dataptr, &statdata); COPY_STATDATA; break;
		339	case REQ_LSTAT: req->result = lstat (req->dataptr, &statdata); COPY_STATDATA; break;
		340	case REQ_FSTAT: req->result = fstat (req->fd, &statdata); COPY_STATDATA; break;
		341	#endif
		342	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
		343	case REQ_CLOSE: req->result = close (req->fd); break;
		344	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
		345
		346	case REQ_QUIT:
		347	default:
248	write (respipe[1], (void *)&req, sizeof (req));	348	write (respipe[1], (void *)&req, sizeof (req));
249	break;	349	return 0;
250	}	350	}
251		351
252	req->errorno = errno;	352	req->errorno = errno;
253	write (respipe[1], (void *)&req, sizeof (req));	353	write (respipe[1], (void *)&req, sizeof (req));
254	}	354	}
…		…
266	sigdelset (&fullsigset, SIGABRT);	366	sigdelset (&fullsigset, SIGABRT);
267	sigdelset (&fullsigset, SIGINT);	367	sigdelset (&fullsigset, SIGINT);
268		368
269	if (pipe (reqpipe) \|\| pipe (respipe))	369	if (pipe (reqpipe) \|\| pipe (respipe))
270	croak ("unable to initialize request or result pipe");	370	croak ("unable to initialize request or result pipe");
		371
		372	if (fcntl (reqpipe[1], F_SETFL, O_NONBLOCK))
		373	croak ("cannot set result pipe to nonblocking mode");
271		374
272	if (fcntl (respipe[0], F_SETFL, O_NONBLOCK))	375	if (fcntl (respipe[0], F_SETFL, O_NONBLOCK))
273	croak ("cannot set result pipe to nonblocking mode");	376	croak ("cannot set result pipe to nonblocking mode");
274	}	377	}
275		378
…		…
291	{	394	{
292	end_thread ();	395	end_thread ();
293	cur--;	396	cur--;
294	}	397	}
295		398
296	poll_cb ();
297	while (started > nthreads)	399	while (started > nthreads)
298	{	400	{
299	sched_yield ();	401	poll_wait ();
300	fcntl (respipe[0], F_SETFL, 0);
301	poll_cb ();	402	poll_cb (aTHX);
302	fcntl (respipe[0], F_SETFL, O_NONBLOCK);
303	}	403	}
304		404
305	void	405	void
306	aio_open(pathname,flags,mode,callback)	406	aio_open(pathname,flags,mode,callback)
307	SV * pathname	407	SV * pathname
…		…
310	SV * callback	410	SV * callback
311	PROTOTYPE: $$$$	411	PROTOTYPE: $$$$
312	CODE:	412	CODE:
313	aio_req req;	413	aio_req req;
314		414
315	New (0, req, 1, aio_cb);	415	Newz (0, req, 1, aio_cb);
316		416
317	if (!req)	417	if (!req)
318	croak ("out of memory during aio_req allocation");	418	croak ("out of memory during aio_req allocation");
319		419
320	req->type = REQ_OPEN;	420	req->type = REQ_OPEN;
321	req->savesv = newSVsv (pathname);	421	req->data = newSVsv (pathname);
322	req->dataptr = SvPV_nolen (req->savesv);	422	req->dataptr = SvPV_nolen (req->data);
323	req->fd = flags;	423	req->fd = flags;
324	req->mode = mode;	424	req->mode = mode;
325	req->callback = SvREFCNT_inc (callback);	425	req->callback = SvREFCNT_inc (callback);
326		426
327	send_req (req);	427	send_req (req);
328		428
329	void	429	void
330	aio_close(fh,callback)	430	aio_close(fh,callback)
331	InputStream fh	431	InputStream fh
332	SV * callback	432	SV * callback
333	PROTOTYPE: $	433	PROTOTYPE: $$
334	CODE:	434	CODE:
335	aio_req req;	435	aio_req req;
336		436
337	New (0, req, 1, aio_cb);	437	Newz (0, req, 1, aio_cb);
338		438
339	if (!req)	439	if (!req)
340	croak ("out of memory during aio_req allocation");	440	croak ("out of memory during aio_req allocation");
341		441
342	req->type = REQ_CLOSE;	442	req->type = REQ_CLOSE;
…		…
377	ALIAS:	477	ALIAS:
378	aio_lstat = 1	478	aio_lstat = 1
379	CODE:	479	CODE:
380	aio_req req;	480	aio_req req;
381		481
382	New (0, req, 1, aio_cb);	482	Newz (0, req, 1, aio_cb);
383		483
384	if (!req)	484	if (!req)
385	croak ("out of memory during aio_req allocation");	485	croak ("out of memory during aio_req allocation");
386		486
387	New (0, req->statdata, 1, struct stat64);	487	New (0, req->statdata, 1, Stat_t);
388		488
389	if (!req->statdata)	489	if (!req->statdata)
390	croak ("out of memory during aio_req->statdata allocation");	490	croak ("out of memory during aio_req->statdata allocation");
391		491
392	if (SvPOK (fh_or_path))	492	if (SvPOK (fh_or_path))
393	{	493	{
394	req->type = ix ? REQ_LSTAT : REQ_STAT;	494	req->type = ix ? REQ_LSTAT : REQ_STAT;
395	req->savesv = newSVsv (fh_or_path);	495	req->data = newSVsv (fh_or_path);
396	req->dataptr = SvPV_nolen (req->savesv);	496	req->dataptr = SvPV_nolen (req->data);
397	}	497	}
398	else	498	else
399	{	499	{
400	req->type = REQ_FSTAT;	500	req->type = REQ_FSTAT;
401	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	501	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
…		…
403		503
404	req->callback = SvREFCNT_inc (callback);	504	req->callback = SvREFCNT_inc (callback);
405		505
406	send_req (req);	506	send_req (req);
407		507
		508	void
		509	aio_unlink(pathname,callback)
		510	SV * pathname
		511	SV * callback
		512	PROTOTYPE: $$
		513	CODE:
		514	aio_req req;
		515
		516	Newz (0, req, 1, aio_cb);
		517
		518	if (!req)
		519	croak ("out of memory during aio_req allocation");
		520
		521	req->type = REQ_UNLINK;
		522	req->data = newSVsv (pathname);
		523	req->dataptr = SvPV_nolen (req->data);
		524	req->callback = SvREFCNT_inc (callback);
		525
		526	send_req (req);
		527
408	int	528	int
409	poll_fileno()	529	poll_fileno()
410	PROTOTYPE:	530	PROTOTYPE:
411	CODE:	531	CODE:
412	RETVAL = respipe[0];	532	RETVAL = respipe[0];
…		…
419	CODE:	539	CODE:
420	RETVAL = poll_cb (aTHX);	540	RETVAL = poll_cb (aTHX);
421	OUTPUT:	541	OUTPUT:
422	RETVAL	542	RETVAL
423		543
		544	void
		545	poll_wait()
		546	PROTOTYPE:
		547	CODE:
		548	poll_wait ();
		549
424	int	550	int
425	nreqs()	551	nreqs()
426	PROTOTYPE:	552	PROTOTYPE:
427	CODE:	553	CODE:
428	RETVAL = nreqs;	554	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 1.26 by root, Thu Jul 7 23:17:23 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 1.26 by root, Thu Jul 7 23:17:23 2005 UTC