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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.20 by root, Sun Jul 31 19:08:39 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, REQ_UNLINK,	46	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
35	REQ_FSYNC, REQ_FDATASYNC,	47	REQ_FSYNC, REQ_FDATASYNC,
		48	REQ_UNLINK, REQ_RMDIR,
		49	REQ_SYMLINK,
36	};	50	};
37		51
38	typedef struct aio_cb {	52	typedef struct aio_cb {
39	struct aio_cb *volatile next;	53	struct aio_cb *volatile next;
40		54
41	int type;	55	int type;
42		56
43	int fd;	57	int fd, fd2;
44	off_t offset;	58	off_t offset;
45	size_t length;	59	size_t length;
46	ssize_t result;	60	ssize_t result;
47	mode_t mode; /* open */	61	mode_t mode; /* open */
48	int errorno;	62	int errorno;
49	SV data, callback, *fh;	63	SV data, callback;
50	void *dataptr;	64	SV fh, fh2;
		65	void dataptr, data2ptr;
51	STRLEN dataoffset;	66	STRLEN dataoffset;
52		67
53	Stat_t *statdata;	68	Stat_t *statdata;
54	} aio_cb;	69	} aio_cb;
55		70
56	typedef aio_cb *aio_req;	71	typedef aio_cb *aio_req;
57		72
58	static int started;	73	static int started, wanted;
59	static volatile int nreqs;	74	static volatile int nreqs;
60	static int max_outstanding = 1<<30;	75	static int max_outstanding = 1<<30;
61	static int respipe [2];	76	static int respipe [2];
62		77
63	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	78	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
64	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	79	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
65	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	80	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
66		81
67	static volatile aio_req reqs, reqe; /* queue start, queue end */	82	static volatile aio_req reqs, reqe; /* queue start, queue end */
68	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	}
69		104
70	static void	105	static void
71	poll_wait ()	106	poll_wait ()
72	{	107	{
73	if (nreqs && !ress)	108	if (nreqs && !ress)
…		…
83	static int	118	static int
84	poll_cb ()	119	poll_cb ()
85	{	120	{
86	dSP;	121	dSP;
87	int count = 0;	122	int count = 0;
		123	int do_croak = 0;
88	aio_req req, prv;	124	aio_req req;
89		125
90	pthread_mutex_lock (&reslock);	126	for (;;)
91
92	{
93	/* read any signals sent by the worker threads */
94	char buf [32];
95	while (read (respipe [0], buf, 32) > 0)
96	;
97	}
98
99	req = ress;
100	ress = rese = 0;
101
102	pthread_mutex_unlock (&reslock);
103
104	while (req)
105	{	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
106	nreqs--;	151	nreqs--;
107		152
108	if (req->type == REQ_QUIT)	153	if (req->type == REQ_QUIT)
109	started--;	154	started--;
110	else	155	else
111	{	156	{
112	int errorno = errno;	157	int errorno = errno;
113	errno = req->errorno;	158	errno = req->errorno;
114		159
115	if (req->type == REQ_READ)	160	if (req->type == REQ_READ)
116	SvCUR_set (req->data, req->dataoffset	161	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
117	+ req->result > 0 ? req->result : 0);
118		162
		163	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
		164	SvREADONLY_off (req->data);
		165
119	if (req->data)	166	if (req->statdata)
120	SvREFCNT_dec (req->data);
121
122	if (req->fh)
123	SvREFCNT_dec (req->fh);
124
125	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)
126	{	167	{
127	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	168	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
128	PL_laststatval = req->result;	169	PL_laststatval = req->result;
129	PL_statcache = *(req->statdata);	170	PL_statcache = *(req->statdata);
130
131	Safefree (req->statdata);
132	}	171	}
133		172
134	ENTER;	173	ENTER;
135	PUSHMARK (SP);	174	PUSHMARK (SP);
136	XPUSHs (sv_2mortal (newSViv (req->result)));	175	XPUSHs (sv_2mortal (newSViv (req->result)));
…		…
153	if (SvOK (req->callback))	192	if (SvOK (req->callback))
154	{	193	{
155	PUTBACK;	194	PUTBACK;
156	call_sv (req->callback, G_VOID \| G_EVAL);	195	call_sv (req->callback, G_VOID \| G_EVAL);
157	SPAGAIN;	196	SPAGAIN;
		197
		198	if (SvTRUE (ERRSV))
		199	{
		200	free_req (req);
		201	croak (0);
		202	}
158	}	203	}
159		204
160	LEAVE;	205	LEAVE;
161
162	if (req->callback)
163	SvREFCNT_dec (req->callback);
164		206
165	errno = errorno;	207	errno = errorno;
166	count++;	208	count++;
167	}	209	}
168		210
169	prv = req;	211	free_req (req);
170	req = req->next;
171	Safefree (prv);
172
173	/* TODO: croak on errors? */
174	}	212	}
175		213
176	return count;	214	return count;
177	}	215	}
178		216
…		…
199	}	237	}
200		238
201	static void	239	static void
202	send_req (aio_req req)	240	send_req (aio_req req)
203	{	241	{
		242	while (started < wanted && nreqs >= started)
		243	start_thread ();
		244
204	nreqs++;	245	nreqs++;
205		246
206	pthread_mutex_lock (&reqlock);	247	pthread_mutex_lock (&reqlock);
207		248
208	req->next = 0;	249	req->next = 0;
…		…
216	reqe = reqs = req;	257	reqe = reqs = req;
217		258
218	pthread_cond_signal (&reqwait);	259	pthread_cond_signal (&reqwait);
219	pthread_mutex_unlock (&reqlock);	260	pthread_mutex_unlock (&reqlock);
220		261
221	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)
222	{	304	{
223	poll_wait ();	305	poll_wait ();
224	poll_cb ();	306	poll_cb ();
225	}	307	}
226	}	308	}
227		309
228	static void	310	static void create_pipe ()
229	end_thread (void)
230	{	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	{
231	aio_req req;	336	aio_req prv;
232	New (0, req, 1, aio_cb);
233	req->type = REQ_QUIT;
234		337
235	send_req (req);	338	started = 0;
236	}
237		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 ();
		363	}
		364
		365	/* currently noops */
		366	#define LOCK_FD(fd) do { } while (0)
		367	#define UNLOCK_FD(fd) do { } while (0)
		368
		369	/*****************************************************************************/
238	/* work around various missing functions */	370	/* work around various missing functions */
239		371
240	#if !HAVE_PREADWRITE	372	#if !HAVE_PREADWRITE
241	# define pread aio_pread	373	# define pread aio_pread
242	# define pwrite aio_pwrite	374	# define pwrite aio_pwrite
…		…
252	pread (int fd, void *buf, size_t count, off_t offset)	384	pread (int fd, void *buf, size_t count, off_t offset)
253	{	385	{
254	ssize_t res;	386	ssize_t res;
255	off_t ooffset;	387	off_t ooffset;
256		388
257	pthread_mutex_lock (&iolock);	389	LOCK_FD (fd);
		390	pthread_mutex_lock (&iolock); /* replace by LOCK_FD and private buffer */
258	ooffset = lseek (fd, 0, SEEK_CUR);	391	ooffset = lseek (fd, 0, SEEK_CUR);
259	lseek (fd, offset, SEEK_SET);	392	lseek (fd, offset, SEEK_SET);
260	res = read (fd, buf, count);	393	res = read (fd, buf, count);
261	lseek (fd, ooffset, SEEK_SET);	394	lseek (fd, ooffset, SEEK_SET);
262	pthread_mutex_unlock (&iolock);	395	pthread_mutex_unlock (&iolock);
		396	UNLOCK_FD (d);
263		397
264	return res;	398	return res;
265	}	399	}
266		400
267	static ssize_t	401	static ssize_t
268	pwrite (int fd, void *buf, size_t count, off_t offset)	402	pwrite (int fd, void *buf, size_t count, off_t offset)
269	{	403	{
270	ssize_t res;	404	ssize_t res;
271	off_t ooffset;	405	off_t ooffset;
272		406
273	pthread_mutex_lock (&iolock);	407	LOCK_FD (fd);
		408	pthread_mutex_lock (&iolock); /* replace by LOCK_FD and private buffer */
274	ooffset = lseek (fd, 0, SEEK_CUR);	409	ooffset = lseek (fd, 0, SEEK_CUR);
275	lseek (fd, offset, SEEK_SET);	410	lseek (fd, offset, SEEK_SET);
276	res = write (fd, buf, count);	411	res = write (fd, buf, count);
277	lseek (fd, offset, SEEK_SET);	412	lseek (fd, offset, SEEK_SET);
278	pthread_mutex_unlock (&iolock);	413	pthread_mutex_unlock (&iolock);
		414	UNLOCK_FD (d);
279		415
280	return res;	416	return res;
281	}	417	}
282	#endif	418	#endif
283		419
…		…
303	}	439	}
304		440
305	errno = 0;	441	errno = 0;
306	}	442	}
307	#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	}
		546
		547	/*****************************************************************************/
308		548
309	static void *	549	static void *
310	aio_proc (void *thr_arg)	550	aio_proc (void *thr_arg)
311	{	551	{
312	aio_req req;	552	aio_req req;
…		…
342	{	582	{
343	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;
344	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;
345		585
346	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;
347		588
348	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	589	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
349	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	590	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
350	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	591	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
351		592
352	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;
353	case REQ_CLOSE: req->result = close (req->fd); break;	594	case REQ_CLOSE: req->result = close (req->fd); break;
354	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;
355		598
356	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	599	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
357	case REQ_FSYNC: req->result = fsync (req->fd); break;	600	case REQ_FSYNC: req->result = fsync (req->fd); break;
358		601
359	case REQ_QUIT:	602	case REQ_QUIT:
…		…
388	while (type != REQ_QUIT);	631	while (type != REQ_QUIT);
389		632
390	return 0;	633	return 0;
391	}	634	}
392		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
393	MODULE = IO::AIO PACKAGE = IO::AIO	648	MODULE = IO::AIO PACKAGE = IO::AIO
394		649
395	PROTOTYPES: ENABLE	650	PROTOTYPES: ENABLE
396		651
397	BOOT:	652	BOOT:
398	{	653	{
399	if (pipe (respipe))	654	create_pipe ();
400	croak ("unable to initialize result pipe");	655	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
401
402	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
403	croak ("cannot set result pipe to nonblocking mode");
404
405	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
406	croak ("cannot set result pipe to nonblocking mode");
407	}	656	}
408		657
409	void	658	void
410	min_parallel(nthreads)	659	min_parallel(nthreads)
411	int nthreads	660	int nthreads
412	PROTOTYPE: $	661	PROTOTYPE: $
413	CODE:
414	while (nthreads > started)
415	start_thread ();
416		662
417	void	663	void
418	max_parallel(nthreads)	664	max_parallel(nthreads)
419	int nthreads	665	int nthreads
420	PROTOTYPE: $	666	PROTOTYPE: $
421	CODE:
422	{
423	int cur = started;
424	while (cur > nthreads)
425	{
426	end_thread ();
427	cur--;
428	}
429
430	while (started > nthreads)
431	{
432	poll_wait ();
433	poll_cb ();
434	}
435	}
436		667
437	int	668	int
438	max_outstanding(nreqs)	669	max_outstanding(nreqs)
439	int nreqs	670	int nreqs
440	PROTOTYPE: $	671	PROTOTYPE: $
…		…
449	int mode	680	int mode
450	SV * callback	681	SV * callback
451	PROTOTYPE: $$$;$	682	PROTOTYPE: $$$;$
452	CODE:	683	CODE:
453	{	684	{
454	aio_req req;	685	dREQ;
455
456	Newz (0, req, 1, aio_cb);
457
458	if (!req)
459	croak ("out of memory during aio_req allocation");
460		686
461	req->type = REQ_OPEN;	687	req->type = REQ_OPEN;
462	req->data = newSVsv (pathname);	688	req->data = newSVsv (pathname);
463	req->dataptr = SvPV_nolen (req->data);	689	req->dataptr = SvPVbyte_nolen (req->data);
464	req->fd = flags;	690	req->fd = flags;
465	req->mode = mode;	691	req->mode = mode;
466	req->callback = SvREFCNT_inc (callback);
467		692
468	send_req (req);	693	send_req (req);
469	}	694	}
470		695
471	void	696	void
…		…
477	aio_close = REQ_CLOSE	702	aio_close = REQ_CLOSE
478	aio_fsync = REQ_FSYNC	703	aio_fsync = REQ_FSYNC
479	aio_fdatasync = REQ_FDATASYNC	704	aio_fdatasync = REQ_FDATASYNC
480	CODE:	705	CODE:
481	{	706	{
482	aio_req req;	707	dREQ;
483
484	Newz (0, req, 1, aio_cb);
485
486	if (!req)
487	croak ("out of memory during aio_req allocation");
488		708
489	req->type = ix;	709	req->type = ix;
490	req->fh = newSVsv (fh);	710	req->fh = newSVsv (fh);
491	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	711	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
492	req->callback = SvREFCNT_inc (callback);
493		712
494	send_req (req);	713	send_req (req);
495	}	714	}
496		715
497	void	716	void
498	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	717	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
499	SV * fh	718	SV * fh
500	UV offset	719	UV offset
501	IV length	720	UV length
502	SV * data	721	SV * data
503	IV dataoffset	722	UV dataoffset
504	SV * callback	723	SV * callback
505	ALIAS:	724	ALIAS:
506	aio_read = REQ_READ	725	aio_read = REQ_READ
507	aio_write = REQ_WRITE	726	aio_write = REQ_WRITE
508	PROTOTYPE: $$$$$;$	727	PROTOTYPE: $$$$$;$
509	CODE:	728	CODE:
510	{	729	{
511	aio_req req;	730	aio_req req;
512	STRLEN svlen;	731	STRLEN svlen;
513	char *svptr = SvPV (data, svlen);	732	char *svptr = SvPVbyte (data, svlen);
514		733
515	SvUPGRADE (data, SVt_PV);	734	SvUPGRADE (data, SVt_PV);
516	SvPOK_on (data);	735	SvPOK_on (data);
517		736
518	if (dataoffset < 0)	737	if (dataoffset < 0)
…		…
534	}	753	}
535		754
536	if (length < 0)	755	if (length < 0)
537	croak ("length must not be negative");	756	croak ("length must not be negative");
538		757
539	Newz (0, req, 1, aio_cb);	758	{
		759	dREQ;
540		760
541	if (!req)
542	croak ("out of memory during aio_req allocation");
543
544	req->type = ix;	761	req->type = ix;
545	req->fh = newSVsv (fh);	762	req->fh = newSVsv (fh);
546	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	763	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
547	: IoOFP (sv_2io (fh)));	764	: IoOFP (sv_2io (fh)));
548	req->offset = offset;	765	req->offset = offset;
		766	req->length = length;
		767	req->data = SvREFCNT_inc (data);
		768	req->dataptr = (char *)svptr + dataoffset;
		769
		770	if (!SvREADONLY (data))
		771	{
		772	SvREADONLY_on (data);
		773	req->data2ptr = (void *)data;
		774	}
		775
		776	send_req (req);
		777	}
		778	}
		779
		780	void
		781	aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
		782	SV * out_fh
		783	SV * in_fh
		784	UV in_offset
		785	UV length
		786	SV * callback
		787	PROTOTYPE: $$$$;$
		788	CODE:
		789	{
		790	dREQ;
		791
		792	req->type = REQ_SENDFILE;
		793	req->fh = newSVsv (out_fh);
		794	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
		795	req->fh2 = newSVsv (in_fh);
		796	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
		797	req->offset = in_offset;
549	req->length = length;	798	req->length = length;
550	req->data = SvREFCNT_inc (data);
551	req->dataptr = (char *)svptr + dataoffset;
552	req->callback = SvREFCNT_inc (callback);
553		799
554	send_req (req);	800	send_req (req);
555	}	801	}
556		802
557	void	803	void
…		…
561	IV length	807	IV length
562	SV * callback	808	SV * callback
563	PROTOTYPE: $$$;$	809	PROTOTYPE: $$$;$
564	CODE:	810	CODE:
565	{	811	{
566	aio_req req;	812	dREQ;
567
568	if (length < 0)
569	croak ("length must not be negative");
570
571	Newz (0, req, 1, aio_cb);
572
573	if (!req)
574	croak ("out of memory during aio_req allocation");
575		813
576	req->type = REQ_READAHEAD;	814	req->type = REQ_READAHEAD;
577	req->fh = newSVsv (fh);	815	req->fh = newSVsv (fh);
578	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	816	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
579	req->offset = offset;	817	req->offset = offset;
580	req->length = length;	818	req->length = length;
581	req->callback = SvREFCNT_inc (callback);
582		819
583	send_req (req);	820	send_req (req);
584	}	821	}
585		822
586	void	823	void
…		…
590	ALIAS:	827	ALIAS:
591	aio_stat = REQ_STAT	828	aio_stat = REQ_STAT
592	aio_lstat = REQ_LSTAT	829	aio_lstat = REQ_LSTAT
593	CODE:	830	CODE:
594	{	831	{
595	aio_req req;	832	dREQ;
596
597	Newz (0, req, 1, aio_cb);
598
599	if (!req)
600	croak ("out of memory during aio_req allocation");
601		833
602	New (0, req->statdata, 1, Stat_t);	834	New (0, req->statdata, 1, Stat_t);
603
604	if (!req->statdata)	835	if (!req->statdata)
		836	{
		837	free_req (req);
605	croak ("out of memory during aio_req->statdata allocation");	838	croak ("out of memory during aio_req->statdata allocation");
		839	}
606		840
607	if (SvPOK (fh_or_path))	841	if (SvPOK (fh_or_path))
608	{	842	{
609	req->type = ix;	843	req->type = ix;
610	req->data = newSVsv (fh_or_path);	844	req->data = newSVsv (fh_or_path);
611	req->dataptr = SvPV_nolen (req->data);	845	req->dataptr = SvPVbyte_nolen (req->data);
612	}	846	}
613	else	847	else
614	{	848	{
615	req->type = REQ_FSTAT;	849	req->type = REQ_FSTAT;
616	req->fh = newSVsv (fh_or_path);	850	req->fh = newSVsv (fh_or_path);
617	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	851	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
618	}	852	}
619		853
620	req->callback = SvREFCNT_inc (callback);
621
622	send_req (req);	854	send_req (req);
623	}	855	}
624		856
625	void	857	void
626	aio_unlink(pathname,callback=&PL_sv_undef)	858	aio_unlink(pathname,callback=&PL_sv_undef)
627	SV * pathname	859	SV * pathname
628	SV * callback	860	SV * callback
		861	ALIAS:
		862	aio_unlink = REQ_UNLINK
		863	aio_rmdir = REQ_RMDIR
629	CODE:	864	CODE:
630	{	865	{
631	aio_req req;	866	dREQ;
632		867
633	Newz (0, req, 1, aio_cb);	868	req->type = ix;
		869	req->data = newSVsv (pathname);
		870	req->dataptr = SvPVbyte_nolen (req->data);
634		871
635	if (!req)	872	send_req (req);
636	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;
637		883
638	req->type = REQ_UNLINK;	884	req->type = REQ_SYMLINK;
		885	req->fh = newSVsv (oldpath);
		886	req->data2ptr = SvPVbyte_nolen (req->fh);
639	req->data = newSVsv (pathname);	887	req->data = newSVsv (newpath);
640	req->dataptr = SvPV_nolen (req->data);	888	req->dataptr = SvPVbyte_nolen (req->data);
641	req->callback = SvREFCNT_inc (callback);
642		889
643	send_req (req);	890	send_req (req);
644	}	891	}
645		892
646	void	893	void

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.20 by root, Sun Jul 31 19:08:39 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 1.20 by root, Sun Jul 31 19:08:39 2005 UTC vs.
Revision 1.35 by root, Tue Aug 23 01:16:50 2005 UTC