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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.14 by root, Sat Jul 23 18:15:36 2005 UTC vs.
Revision 1.35 by root, Tue Aug 23 01:16:50 2005 UTC

…		…
		1	#define _REENTRANT 1
		2	#include <errno.h>
		3
		4	#include "EXTERN.h"
1	#include "perl.h"	5	#include "perl.h"
2	#include "XSUB.h"	6	#include "XSUB.h"
		7
		8	#include "autoconf/config.h"
		9
		10	#include <pthread.h>
3		11
4	#include <sys/types.h>	12	#include <sys/types.h>
5	#include <sys/stat.h>	13	#include <sys/stat.h>
6		14
7	#include <unistd.h>	15	#include <unistd.h>
8	#include <fcntl.h>	16	#include <fcntl.h>
9	#include <signal.h>	17	#include <signal.h>
10	#include <sched.h>	18	#include <sched.h>
		19
		20	#if HAVE_SENDFILE
11	#if __linux	21	# if __linux
		22	# include <sys/sendfile.h>
		23	# elif __freebsd
12	#include <sys/syscall.h>	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
13	#endif	33	#endif
14
15	#include <pthread.h>
16
17	typedef void InputStream; / hack, but 5.6.1 is simply toooo old ;) */
18	typedef void OutputStream; / hack, but 5.6.1 is simply toooo old ;) */
19	typedef void InOutStream; / hack, but 5.6.1 is simply toooo old ;) */
20		34
21	#if __ia64	35	#if __ia64
22	# define STACKSIZE 65536	36	# define STACKSIZE 65536
23	#else	37	#else
24	# define STACKSIZE 4096	38	# define STACKSIZE 4096
26		40
27	enum {	41	enum {
28	REQ_QUIT,	42	REQ_QUIT,
29	REQ_OPEN, REQ_CLOSE,	43	REQ_OPEN, REQ_CLOSE,
30	REQ_READ, REQ_WRITE, REQ_READAHEAD,	44	REQ_READ, REQ_WRITE, REQ_READAHEAD,
		45	REQ_SENDFILE,
31	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,	46	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
32	REQ_FSYNC, REQ_FDATASYNC,	47	REQ_FSYNC, REQ_FDATASYNC,
		48	REQ_UNLINK, REQ_RMDIR,
		49	REQ_SYMLINK,
33	};	50	};
34		51
35	typedef struct aio_cb {	52	typedef struct aio_cb {
36	struct aio_cb *volatile next;	53	struct aio_cb *volatile next;
37		54
38	int type;	55	int type;
39		56
40	int fd;	57	int fd, fd2;
41	off_t offset;	58	off_t offset;
42	size_t length;	59	size_t length;
43	ssize_t result;	60	ssize_t result;
44	mode_t mode; /* open */	61	mode_t mode; /* open */
45	int errorno;	62	int errorno;
46	SV data, callback, *fh;	63	SV data, callback;
47	void *dataptr;	64	SV fh, fh2;
		65	void dataptr, data2ptr;
48	STRLEN dataoffset;	66	STRLEN dataoffset;
49		67
50	Stat_t *statdata;	68	Stat_t *statdata;
51	} aio_cb;	69	} aio_cb;
52		70
53	typedef aio_cb *aio_req;	71	typedef aio_cb *aio_req;
54		72
55	static int started;	73	static int started, wanted;
56	static volatile int nreqs;	74	static volatile int nreqs;
57	static int max_outstanding = 1<<30;	75	static int max_outstanding = 1<<30;
58	static int respipe [2];	76	static int respipe [2];
59		77
60	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	78	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
61	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	79	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
62	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	80	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
63		81
64	static volatile aio_req reqs, reqe; /* queue start, queue end */	82	static volatile aio_req reqs, reqe; /* queue start, queue end */
65	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	}
66		104
67	static void	105	static void
68	poll_wait ()	106	poll_wait ()
69	{	107	{
70	if (nreqs && !ress)	108	if (nreqs && !ress)
…		…
80	static int	118	static int
81	poll_cb ()	119	poll_cb ()
82	{	120	{
83	dSP;	121	dSP;
84	int count = 0;	122	int count = 0;
		123	int do_croak = 0;
85	aio_req req, prv;	124	aio_req req;
86		125
87	pthread_mutex_lock (&reslock);	126	for (;;)
88
89	{
90	/* read any signals sent by the worker threads */
91	char buf [32];
92	while (read (respipe [0], buf, 32) > 0)
93	;
94	}
95
96	req = ress;
97	ress = rese = 0;
98
99	pthread_mutex_unlock (&reslock);
100
101	while (req)
102	{	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
103	nreqs--;	151	nreqs--;
104		152
105	if (req->type == REQ_QUIT)	153	if (req->type == REQ_QUIT)
106	started--;	154	started--;
107	else	155	else
108	{	156	{
109	int errorno = errno;	157	int errorno = errno;
110	errno = req->errorno;	158	errno = req->errorno;
111		159
112	if (req->type == REQ_READ)	160	if (req->type == REQ_READ)
113	SvCUR_set (req->data, req->dataoffset	161	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
114	+ req->result > 0 ? req->result : 0);
115		162
		163	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
		164	SvREADONLY_off (req->data);
		165
116	if (req->data)	166	if (req->statdata)
117	SvREFCNT_dec (req->data);
118
119	if (req->fh)
120	SvREFCNT_dec (req->fh);
121
122	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)
123	{	167	{
124	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	168	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
125	PL_laststatval = req->result;	169	PL_laststatval = req->result;
126	PL_statcache = *(req->statdata);	170	PL_statcache = *(req->statdata);
127
128	Safefree (req->statdata);
129	}	171	}
130		172
131	ENTER;	173	ENTER;
132	PUSHMARK (SP);	174	PUSHMARK (SP);
133	XPUSHs (sv_2mortal (newSViv (req->result)));	175	XPUSHs (sv_2mortal (newSViv (req->result)));
…		…
150	if (SvOK (req->callback))	192	if (SvOK (req->callback))
151	{	193	{
152	PUTBACK;	194	PUTBACK;
153	call_sv (req->callback, G_VOID \| G_EVAL);	195	call_sv (req->callback, G_VOID \| G_EVAL);
154	SPAGAIN;	196	SPAGAIN;
		197
		198	if (SvTRUE (ERRSV))
		199	{
		200	free_req (req);
		201	croak (0);
		202	}
155	}	203	}
156		204
157	LEAVE;	205	LEAVE;
158
159	if (req->callback)
160	SvREFCNT_dec (req->callback);
161		206
162	errno = errorno;	207	errno = errorno;
163	count++;	208	count++;
164	}	209	}
165		210
166	prv = req;	211	free_req (req);
167	req = req->next;
168	Safefree (prv);
169
170	/* TODO: croak on errors? */
171	}	212	}
172		213
173	return count;	214	return count;
174	}	215	}
175		216
…		…
196	}	237	}
197		238
198	static void	239	static void
199	send_req (aio_req req)	240	send_req (aio_req req)
200	{	241	{
		242	while (started < wanted && nreqs >= started)
		243	start_thread ();
		244
201	nreqs++;	245	nreqs++;
202		246
203	pthread_mutex_lock (&reqlock);	247	pthread_mutex_lock (&reqlock);
204		248
205	req->next = 0;	249	req->next = 0;
…		…
213	reqe = reqs = req;	257	reqe = reqs = req;
214		258
215	pthread_cond_signal (&reqwait);	259	pthread_cond_signal (&reqwait);
216	pthread_mutex_unlock (&reqlock);	260	pthread_mutex_unlock (&reqlock);
217		261
218	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)
219	{	304	{
220	poll_wait ();	305	poll_wait ();
221	poll_cb ();	306	poll_cb ();
222	}	307	}
223	}	308	}
224		309
225	static void	310	static void create_pipe ()
226	end_thread (void)
227	{	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	{
228	aio_req req;	336	aio_req prv;
229	New (0, req, 1, aio_cb);
230	req->type = REQ_QUIT;
231		337
232	send_req (req);	338	started = 0;
		339
		340	while (reqs)
		341	{
		342	prv = reqs;
		343	reqs = prv->next;
		344	free_req (prv);
		345	}
		346
		347	reqs = reqe = 0;
		348
		349	while (ress)
		350	{
		351	prv = ress;
		352	ress = prv->next;
		353	free_req (prv);
		354	}
		355
		356	ress = rese = 0;
		357
		358	close (respipe [0]);
		359	close (respipe [1]);
		360	create_pipe ();
		361
		362	atfork_parent ();
233	}	363	}
		364
		365	/* currently noops */
		366	#define LOCK_FD(fd) do { } while (0)
		367	#define UNLOCK_FD(fd) do { } while (0)
		368
		369	/*****************************************************************************/
		370	/* work around various missing functions */
		371
		372	#if !HAVE_PREADWRITE
		373	# define pread aio_pread
		374	# define pwrite aio_pwrite
		375
		376	/*
		377	* make our pread/pwrite safe against themselves, but not against
		378	* normal read/write by using a mutex. slows down execution a lot,
		379	* but that's your problem, not mine.
		380	*/
		381	static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER;
		382
		383	static ssize_t
		384	pread (int fd, void *buf, size_t count, off_t offset)
		385	{
		386	ssize_t res;
		387	off_t ooffset;
		388
		389	LOCK_FD (fd);
		390	pthread_mutex_lock (&iolock); /* replace by LOCK_FD and private buffer */
		391	ooffset = lseek (fd, 0, SEEK_CUR);
		392	lseek (fd, offset, SEEK_SET);
		393	res = read (fd, buf, count);
		394	lseek (fd, ooffset, SEEK_SET);
		395	pthread_mutex_unlock (&iolock);
		396	UNLOCK_FD (d);
		397
		398	return res;
		399	}
		400
		401	static ssize_t
		402	pwrite (int fd, void *buf, size_t count, off_t offset)
		403	{
		404	ssize_t res;
		405	off_t ooffset;
		406
		407	LOCK_FD (fd);
		408	pthread_mutex_lock (&iolock); /* replace by LOCK_FD and private buffer */
		409	ooffset = lseek (fd, 0, SEEK_CUR);
		410	lseek (fd, offset, SEEK_SET);
		411	res = write (fd, buf, count);
		412	lseek (fd, offset, SEEK_SET);
		413	pthread_mutex_unlock (&iolock);
		414	UNLOCK_FD (d);
		415
		416	return res;
		417	}
		418	#endif
		419
		420	#if !HAVE_FDATASYNC
		421	# define fdatasync fsync
		422	#endif
		423
		424	#if !HAVE_READAHEAD
		425	# define readahead aio_readahead
		426
		427	static char readahead_buf[4096];
		428
		429	static ssize_t
		430	readahead (int fd, off_t offset, size_t count)
		431	{
		432	while (count > 0)
		433	{
		434	size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
		435
		436	pread (fd, readahead_buf, len, offset);
		437	offset += len;
		438	count -= len;
		439	}
		440
		441	errno = 0;
		442	}
		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	}
		546
		547	/*****************************************************************************/
234		548
235	static void *	549	static void *
236	aio_proc (void *thr_arg)	550	aio_proc (void *thr_arg)
237	{	551	{
238	aio_req req;	552	aio_req req;
…		…
266		580
267	switch (type)	581	switch (type)
268	{	582	{
269	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;
270	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;
271	#if SYS_readahead	585
272	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;
273	#else	587	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
274	case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
275	#endif
276		588
277	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	589	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
278	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	590	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
279	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	591	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
280		592
281	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	593	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
282	case REQ_CLOSE: req->result = close (req->fd); break;	594	case REQ_CLOSE: req->result = close (req->fd); break;
283	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	595	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
		596	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
		597	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
284		598
		599	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
285	case REQ_FSYNC: req->result = fsync (req->fd); break;	600	case REQ_FSYNC: req->result = fsync (req->fd); break;
286	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
287		601
288	case REQ_QUIT:	602	case REQ_QUIT:
289	break;	603	break;
290		604
291	default:	605	default:
…		…
317	while (type != REQ_QUIT);	631	while (type != REQ_QUIT);
318		632
319	return 0;	633	return 0;
320	}	634	}
321		635
		636	#define dREQ \
		637	aio_req req; \
		638	\
		639	if (SvOK (callback) && !SvROK (callback)) \
		640	croak ("clalback must be undef or of reference type"); \
		641	\
		642	Newz (0, req, 1, aio_cb); \
		643	if (!req) \
		644	croak ("out of memory during aio_req allocation"); \
		645	\
		646	req->callback = newSVsv (callback);
		647
322	MODULE = IO::AIO PACKAGE = IO::AIO	648	MODULE = IO::AIO PACKAGE = IO::AIO
323		649
324	PROTOTYPES: ENABLE	650	PROTOTYPES: ENABLE
325		651
326	BOOT:	652	BOOT:
327	{	653	{
328	if (pipe (respipe))	654	create_pipe ();
329	croak ("unable to initialize result pipe");	655	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
330
331	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
332	croak ("cannot set result pipe to nonblocking mode");
333
334	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
335	croak ("cannot set result pipe to nonblocking mode");
336	}	656	}
337		657
338	void	658	void
339	min_parallel(nthreads)	659	min_parallel(nthreads)
340	int nthreads	660	int nthreads
341	PROTOTYPE: $	661	PROTOTYPE: $
342	CODE:
343	while (nthreads > started)
344	start_thread ();
345		662
346	void	663	void
347	max_parallel(nthreads)	664	max_parallel(nthreads)
348	int nthreads	665	int nthreads
349	PROTOTYPE: $	666	PROTOTYPE: $
350	CODE:
351	{
352	int cur = started;
353	while (cur > nthreads)
354	{
355	end_thread ();
356	cur--;
357	}
358
359	while (started > nthreads)
360	{
361	poll_wait ();
362	poll_cb ();
363	}
364	}
365		667
366	int	668	int
367	max_outstanding(nreqs)	669	max_outstanding(nreqs)
368	int nreqs	670	int nreqs
369	PROTOTYPE: $	671	PROTOTYPE: $
…		…
378	int mode	680	int mode
379	SV * callback	681	SV * callback
380	PROTOTYPE: $$$;$	682	PROTOTYPE: $$$;$
381	CODE:	683	CODE:
382	{	684	{
383	aio_req req;	685	dREQ;
384
385	Newz (0, req, 1, aio_cb);
386
387	if (!req)
388	croak ("out of memory during aio_req allocation");
389		686
390	req->type = REQ_OPEN;	687	req->type = REQ_OPEN;
391	req->data = newSVsv (pathname);	688	req->data = newSVsv (pathname);
392	req->dataptr = SvPV_nolen (req->data);	689	req->dataptr = SvPVbyte_nolen (req->data);
393	req->fd = flags;	690	req->fd = flags;
394	req->mode = mode;	691	req->mode = mode;
395	req->callback = SvREFCNT_inc (callback);
396		692
397	send_req (req);	693	send_req (req);
398	}	694	}
399		695
400	void	696	void
…		…
406	aio_close = REQ_CLOSE	702	aio_close = REQ_CLOSE
407	aio_fsync = REQ_FSYNC	703	aio_fsync = REQ_FSYNC
408	aio_fdatasync = REQ_FDATASYNC	704	aio_fdatasync = REQ_FDATASYNC
409	CODE:	705	CODE:
410	{	706	{
411	aio_req req;	707	dREQ;
412
413	Newz (0, req, 1, aio_cb);
414
415	if (!req)
416	croak ("out of memory during aio_req allocation");
417		708
418	req->type = ix;	709	req->type = ix;
419	req->fh = newSVsv (fh);	710	req->fh = newSVsv (fh);
420	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	711	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
421	req->callback = SvREFCNT_inc (callback);
422		712
423	send_req (req);	713	send_req (req);
424	}	714	}
425		715
426	void	716	void
427	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	717	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
428	SV * fh	718	SV * fh
429	UV offset	719	UV offset
430	IV length	720	UV length
431	SV * data	721	SV * data
432	IV dataoffset	722	UV dataoffset
433	SV * callback	723	SV * callback
434	ALIAS:	724	ALIAS:
435	aio_read = REQ_READ	725	aio_read = REQ_READ
436	aio_write = REQ_WRITE	726	aio_write = REQ_WRITE
437	PROTOTYPE: $$$$$;$	727	PROTOTYPE: $$$$$;$
438	CODE:	728	CODE:
439	{	729	{
440	aio_req req;	730	aio_req req;
441	STRLEN svlen;	731	STRLEN svlen;
442	char *svptr = SvPV (data, svlen);	732	char *svptr = SvPVbyte (data, svlen);
443		733
444	SvUPGRADE (data, SVt_PV);	734	SvUPGRADE (data, SVt_PV);
445	SvPOK_on (data);	735	SvPOK_on (data);
446		736
447	if (dataoffset < 0)	737	if (dataoffset < 0)
…		…
463	}	753	}
464		754
465	if (length < 0)	755	if (length < 0)
466	croak ("length must not be negative");	756	croak ("length must not be negative");
467		757
468	Newz (0, req, 1, aio_cb);	758	{
		759	dREQ;
469		760
470	if (!req)
471	croak ("out of memory during aio_req allocation");
472
473	req->type = ix;	761	req->type = ix;
474	req->fh = newSVsv (fh);	762	req->fh = newSVsv (fh);
475	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	763	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
476	: IoOFP (sv_2io (fh)));	764	: IoOFP (sv_2io (fh)));
477	req->offset = offset;	765	req->offset = offset;
		766	req->length = length;
		767	req->data = SvREFCNT_inc (data);
		768	req->dataptr = (char *)svptr + dataoffset;
		769
		770	if (!SvREADONLY (data))
		771	{
		772	SvREADONLY_on (data);
		773	req->data2ptr = (void *)data;
		774	}
		775
		776	send_req (req);
		777	}
		778	}
		779
		780	void
		781	aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
		782	SV * out_fh
		783	SV * in_fh
		784	UV in_offset
		785	UV length
		786	SV * callback
		787	PROTOTYPE: $$$$;$
		788	CODE:
		789	{
		790	dREQ;
		791
		792	req->type = REQ_SENDFILE;
		793	req->fh = newSVsv (out_fh);
		794	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
		795	req->fh2 = newSVsv (in_fh);
		796	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
		797	req->offset = in_offset;
478	req->length = length;	798	req->length = length;
479	req->data = SvREFCNT_inc (data);
480	req->dataptr = (char *)svptr + dataoffset;
481	req->callback = SvREFCNT_inc (callback);
482		799
483	send_req (req);	800	send_req (req);
484	}	801	}
485		802
486	void	803	void
…		…
490	IV length	807	IV length
491	SV * callback	808	SV * callback
492	PROTOTYPE: $$$;$	809	PROTOTYPE: $$$;$
493	CODE:	810	CODE:
494	{	811	{
495	aio_req req;	812	dREQ;
496
497	if (length < 0)
498	croak ("length must not be negative");
499
500	Newz (0, req, 1, aio_cb);
501
502	if (!req)
503	croak ("out of memory during aio_req allocation");
504		813
505	req->type = REQ_READAHEAD;	814	req->type = REQ_READAHEAD;
506	req->fh = newSVsv (fh);	815	req->fh = newSVsv (fh);
507	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	816	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
508	req->offset = offset;	817	req->offset = offset;
509	req->length = length;	818	req->length = length;
510	req->callback = SvREFCNT_inc (callback);
511		819
512	send_req (req);	820	send_req (req);
513	}	821	}
514		822
515	void	823	void
…		…
519	ALIAS:	827	ALIAS:
520	aio_stat = REQ_STAT	828	aio_stat = REQ_STAT
521	aio_lstat = REQ_LSTAT	829	aio_lstat = REQ_LSTAT
522	CODE:	830	CODE:
523	{	831	{
524	aio_req req;	832	dREQ;
525
526	Newz (0, req, 1, aio_cb);
527
528	if (!req)
529	croak ("out of memory during aio_req allocation");
530		833
531	New (0, req->statdata, 1, Stat_t);	834	New (0, req->statdata, 1, Stat_t);
532
533	if (!req->statdata)	835	if (!req->statdata)
		836	{
		837	free_req (req);
534	croak ("out of memory during aio_req->statdata allocation");	838	croak ("out of memory during aio_req->statdata allocation");
		839	}
535		840
536	if (SvPOK (fh_or_path))	841	if (SvPOK (fh_or_path))
537	{	842	{
538	req->type = ix;	843	req->type = ix;
539	req->data = newSVsv (fh_or_path);	844	req->data = newSVsv (fh_or_path);
540	req->dataptr = SvPV_nolen (req->data);	845	req->dataptr = SvPVbyte_nolen (req->data);
541	}	846	}
542	else	847	else
543	{	848	{
544	req->type = REQ_FSTAT;	849	req->type = REQ_FSTAT;
545	req->fh = newSVsv (fh_or_path);	850	req->fh = newSVsv (fh_or_path);
546	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	851	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
547	}	852	}
548		853
549	req->callback = SvREFCNT_inc (callback);
550
551	send_req (req);	854	send_req (req);
552	}	855	}
553		856
554	void	857	void
555	aio_unlink(pathname,callback=&PL_sv_undef)	858	aio_unlink(pathname,callback=&PL_sv_undef)
556	SV * pathname	859	SV * pathname
557	SV * callback	860	SV * callback
		861	ALIAS:
		862	aio_unlink = REQ_UNLINK
		863	aio_rmdir = REQ_RMDIR
558	CODE:	864	CODE:
559	{	865	{
560	aio_req req;	866	dREQ;
561		867
562	Newz (0, req, 1, aio_cb);	868	req->type = ix;
		869	req->data = newSVsv (pathname);
		870	req->dataptr = SvPVbyte_nolen (req->data);
563		871
564	if (!req)	872	send_req (req);
565	croak ("out of memory during aio_req allocation");	873	}
		874
		875	void
		876	aio_symlink(oldpath,newpath,callback=&PL_sv_undef)
		877	SV * oldpath
		878	SV * newpath
		879	SV * callback
		880	CODE:
		881	{
		882	dREQ;
566		883
567	req->type = REQ_UNLINK;	884	req->type = REQ_SYMLINK;
		885	req->fh = newSVsv (oldpath);
		886	req->data2ptr = SvPVbyte_nolen (req->fh);
568	req->data = newSVsv (pathname);	887	req->data = newSVsv (newpath);
569	req->dataptr = SvPV_nolen (req->data);	888	req->dataptr = SvPVbyte_nolen (req->data);
570	req->callback = SvREFCNT_inc (callback);
571		889
572	send_req (req);	890	send_req (req);
573	}	891	}
574		892
575	void	893	void

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.14 by root, Sat Jul 23 18:15:36 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 1.14 by root, Sat Jul 23 18:15:36 2005 UTC vs.
Revision 1.35 by root, Tue Aug 23 01:16:50 2005 UTC