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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.11 by root, Wed Jul 20 21:55:27 2005 UTC vs.
Revision 1.34 by root, Tue Aug 23 00:03:14 2005 UTC

…		…
1	#define _XOPEN_SOURCE 500	1	#define _REENTRANT 1
		2	#include <errno.h>
2		3
3	#include "EXTERN.h"	4	#include "EXTERN.h"
4	#include "perl.h"	5	#include "perl.h"
5	#include "XSUB.h"	6	#include "XSUB.h"
		7
		8	#include "autoconf/config.h"
		9
		10	#include <pthread.h>
6		11
7	#include <sys/types.h>	12	#include <sys/types.h>
8	#include <sys/stat.h>	13	#include <sys/stat.h>
9		14
10	#include <unistd.h>	15	#include <unistd.h>
11	#include <fcntl.h>	16	#include <fcntl.h>
12	#include <signal.h>	17	#include <signal.h>
13	#include <sched.h>	18	#include <sched.h>
		19
		20	#if HAVE_SENDFILE
14	#if __linux	21	# if __linux
		22	# include <sys/sendfile.h>
		23	# elif __freebsd
15	#include <sys/syscall.h>	24	# include <sys/socket.h>
		25	# include <sys/uio.h>
		26	# elif __hpux
		27	# include <sys/socket.h>
		28	# else
		29	# error sendfile support requested but not available
		30	# endif
16	#endif	31	#endif
17
18	#include <pthread.h>
19
20	typedef void InputStream; / hack, but 5.6.1 is simply toooo old ;) */
21	typedef void OutputStream; / hack, but 5.6.1 is simply toooo old ;) */
22	typedef void InOutStream; / hack, but 5.6.1 is simply toooo old ;) */
23		32
24	#if __ia64	33	#if __ia64
25	# define STACKSIZE 65536	34	# define STACKSIZE 65536
26	#else	35	#else
27	# define STACKSIZE 4096	36	# define STACKSIZE 4096
29		38
30	enum {	39	enum {
31	REQ_QUIT,	40	REQ_QUIT,
32	REQ_OPEN, REQ_CLOSE,	41	REQ_OPEN, REQ_CLOSE,
33	REQ_READ, REQ_WRITE, REQ_READAHEAD,	42	REQ_READ, REQ_WRITE, REQ_READAHEAD,
		43	REQ_SENDFILE,
34	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,	44	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
35	REQ_FSYNC, REQ_FDATASYNC,	45	REQ_FSYNC, REQ_FDATASYNC,
		46	REQ_UNLINK, REQ_RMDIR,
		47	REQ_SYMLINK,
36	};	48	};
37		49
38	typedef struct aio_cb {	50	typedef struct aio_cb {
39	struct aio_cb *volatile next;	51	struct aio_cb *volatile next;
40		52
41	int type;	53	int type;
42		54
43	int fd;	55	int fd, fd2;
44	off_t offset;	56	off_t offset;
45	size_t length;	57	size_t length;
46	ssize_t result;	58	ssize_t result;
47	mode_t mode; /* open */	59	mode_t mode; /* open */
48	int errorno;	60	int errorno;
49	SV data, callback;	61	SV data, callback;
50	void *dataptr;	62	SV fh, fh2;
		63	void dataptr, data2ptr;
51	STRLEN dataoffset;	64	STRLEN dataoffset;
52		65
53	Stat_t *statdata;	66	Stat_t *statdata;
54	} aio_cb;	67	} aio_cb;
55		68
56	typedef aio_cb *aio_req;	69	typedef aio_cb *aio_req;
57		70
58	static int started;	71	static int started, wanted;
59	static volatile int nreqs;	72	static volatile int nreqs;
60	static int max_outstanding = 1<<30;	73	static int max_outstanding = 1<<30;
61	static int respipe [2];	74	static int respipe [2];
62		75
63	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	76	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
64	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	77	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
65	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	78	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
66		79
67	static volatile aio_req reqs, reqe; /* queue start, queue end */	80	static volatile aio_req reqs, reqe; /* queue start, queue end */
68	static volatile aio_req ress, rese; /* queue start, queue end */	81	static volatile aio_req ress, rese; /* queue start, queue end */
		82
		83	static void free_req (aio_req req)
		84	{
		85	if (req->data)
		86	SvREFCNT_dec (req->data);
		87
		88	if (req->fh)
		89	SvREFCNT_dec (req->fh);
		90
		91	if (req->fh2)
		92	SvREFCNT_dec (req->fh2);
		93
		94	if (req->statdata)
		95	Safefree (req->statdata);
		96
		97	if (req->callback)
		98	SvREFCNT_dec (req->callback);
		99
		100	Safefree (req);
		101	}
69		102
70	static void	103	static void
71	poll_wait ()	104	poll_wait ()
72	{	105	{
73	if (nreqs && !ress)	106	if (nreqs && !ress)
…		…
83	static int	116	static int
84	poll_cb ()	117	poll_cb ()
85	{	118	{
86	dSP;	119	dSP;
87	int count = 0;	120	int count = 0;
		121	int do_croak = 0;
88	aio_req req, prv;	122	aio_req req;
89		123
90	static int rl;//D	124	for (;;)
91	//printf ("%d ENTER\n", ++rl);//D
92
93	pthread_mutex_lock (&reslock);
94
95	{
96	/* read any signals sent by the worker threads */
97	char buf [32];
98	while (read (respipe [0], buf, 32) > 0)
99	;
100	}
101
102	req = ress;
103	ress = rese = 0;
104
105	pthread_mutex_unlock (&reslock);
106
107	while (req)
108	{	125	{
		126	pthread_mutex_lock (&reslock);
		127	req = ress;
		128
		129	if (req)
		130	{
		131	ress = req->next;
		132
		133	if (!ress)
		134	{
		135	/* read any signals sent by the worker threads */
		136	char buf [32];
		137	while (read (respipe [0], buf, 32) == 32)
		138	;
		139
		140	rese = 0;
		141	}
		142	}
		143
		144	pthread_mutex_unlock (&reslock);
		145
		146	if (!req)
		147	break;
		148
109	nreqs--;	149	nreqs--;
110	//printf ("%d count %d %p->%p\n", rl, count, req, req->next);//D
111		150
112	if (req->type == REQ_QUIT)	151	if (req->type == REQ_QUIT)
113	started--;	152	started--;
114	else	153	else
115	{	154	{
116	int errorno = errno;	155	int errorno = errno;
117	errno = req->errorno;	156	errno = req->errorno;
118		157
119	if (req->type == REQ_READ)	158	if (req->type == REQ_READ)
120	SvCUR_set (req->data, req->dataoffset	159	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
121	+ req->result > 0 ? req->result : 0);
122		160
		161	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
		162	SvREADONLY_off (req->data);
		163
123	if (req->data)	164	if (req->statdata)
124	SvREFCNT_dec (req->data);
125
126	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)
127	{	165	{
128	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	166	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
129	PL_laststatval = req->result;	167	PL_laststatval = req->result;
130	PL_statcache = *(req->statdata);	168	PL_statcache = *(req->statdata);
131
132	Safefree (req->statdata);
133	}	169	}
134		170
		171	ENTER;
135	PUSHMARK (SP);	172	PUSHMARK (SP);
136	XPUSHs (sv_2mortal (newSViv (req->result)));	173	XPUSHs (sv_2mortal (newSViv (req->result)));
137		174
138	if (req->type == REQ_OPEN)	175	if (req->type == REQ_OPEN)
139	{	176	{
…		…
142		179
143	PUTBACK;	180	PUTBACK;
144	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);	181	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
145	SPAGAIN;	182	SPAGAIN;
146		183
147	fh = POPs;	184	fh = SvREFCNT_inc (POPs);
148		185
149	PUSHMARK (SP);	186	PUSHMARK (SP);
150	XPUSHs (fh);	187	XPUSHs (sv_2mortal (fh));
151	}	188	}
152		189
153	if (SvOK (req->callback))	190	if (SvOK (req->callback))
154	{	191	{
155	PUTBACK;	192	PUTBACK;
156	call_sv (req->callback, G_VOID \| G_EVAL);	193	call_sv (req->callback, G_VOID \| G_EVAL);
157	SPAGAIN;	194	SPAGAIN;
		195
		196	if (SvTRUE (ERRSV))
		197	{
		198	free_req (req);
		199	croak (0);
		200	}
158	}	201	}
		202
159		203	LEAVE;
160	if (req->callback)
161	SvREFCNT_dec (req->callback);
162		204
163	errno = errorno;	205	errno = errorno;
164	count++;	206	count++;
165	}	207	}
166		208
167	prv = req;	209	free_req (req);
168	req = req->next;
169	Safefree (prv);
170
171	/* TODO: croak on errors? */
172	}	210	}
173		211
174	//printf ("%d LEAVE %p %p\n", rl--, ress, rese);//D
175	return count;	212	return count;
176	}	213	}
177		214
178	static void aio_proc(void arg);	215	static void aio_proc(void arg);
179		216
…		…
198	}	235	}
199		236
200	static void	237	static void
201	send_req (aio_req req)	238	send_req (aio_req req)
202	{	239	{
		240	while (started < wanted && nreqs >= started)
		241	start_thread ();
		242
203	nreqs++;	243	nreqs++;
204		244
205	pthread_mutex_lock (&reqlock);	245	pthread_mutex_lock (&reqlock);
206		246
207	req->next = 0;	247	req->next = 0;
…		…
215	reqe = reqs = req;	255	reqe = reqs = req;
216		256
217	pthread_cond_signal (&reqwait);	257	pthread_cond_signal (&reqwait);
218	pthread_mutex_unlock (&reqlock);	258	pthread_mutex_unlock (&reqlock);
219		259
220	while (nreqs > max_outstanding)	260	if (nreqs > max_outstanding)
		261	for (;;)
		262	{
		263	poll_cb ();
		264
		265	if (nreqs <= max_outstanding)
		266	break;
		267
		268	poll_wait ();
		269	}
		270	}
		271
		272	static void
		273	end_thread (void)
		274	{
		275	aio_req req;
		276	Newz (0, req, 1, aio_cb);
		277	req->type = REQ_QUIT;
		278
		279	send_req (req);
		280	}
		281
		282	static void min_parallel (int nthreads)
		283	{
		284	if (wanted < nthreads)
		285	wanted = nthreads;
		286	}
		287
		288	static void max_parallel (int nthreads)
		289	{
		290	int cur = started;
		291
		292	if (wanted > nthreads)
		293	wanted = nthreads;
		294
		295	while (cur > wanted)
		296	{
		297	end_thread ();
		298	cur--;
		299	}
		300
		301	while (started > wanted)
221	{	302	{
222	poll_wait ();	303	poll_wait ();
223	poll_cb ();	304	poll_cb ();
224	}	305	}
225	}	306	}
226		307
227	static void	308	static void create_pipe ()
228	end_thread (void)
229	{	309	{
		310	if (pipe (respipe))
		311	croak ("unable to initialize result pipe");
		312
		313	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
		314	croak ("cannot set result pipe to nonblocking mode");
		315
		316	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		317	croak ("cannot set result pipe to nonblocking mode");
		318	}
		319
		320	static void atfork_prepare (void)
		321	{
		322	pthread_mutex_lock (&reqlock);
		323	pthread_mutex_lock (&reslock);
		324	}
		325
		326	static void atfork_parent (void)
		327	{
		328	pthread_mutex_unlock (&reslock);
		329	pthread_mutex_unlock (&reqlock);
		330	}
		331
		332	static void atfork_child (void)
		333	{
230	aio_req req;	334	aio_req prv;
231	New (0, req, 1, aio_cb);
232	req->type = REQ_QUIT;
233		335
234	send_req (req);	336	started = 0;
235	}
236		337
237	static void	338	while (reqs)
238	read_write (int dowrite, int fd, off_t offset, size_t length,
239	SV data, STRLEN dataoffset, SV callback)
240	{
241	aio_req req;
242	STRLEN svlen;
243	char *svptr = SvPV (data, svlen);
244
245	SvUPGRADE (data, SVt_PV);
246	SvPOK_on (data);
247
248	if (dataoffset < 0)
249	dataoffset += svlen;
250
251	if (dataoffset < 0 \|\| dataoffset > svlen)
252	croak ("data offset outside of string");
253
254	if (dowrite)
255	{	339	{
256	/* write: check length and adjust. */	340	prv = reqs;
257	if (length < 0 \|\| length + dataoffset > svlen)	341	reqs = prv->next;
258	length = svlen - dataoffset;	342	free_req (prv);
259	}	343	}
260	else	344
		345	reqs = reqe = 0;
		346
		347	while (ress)
261	{	348	{
262	/* read: grow scalar as necessary */	349	prv = ress;
263	svptr = SvGROW (data, length + dataoffset);	350	ress = prv->next;
		351	free_req (prv);
264	}	352	}
		353
		354	ress = rese = 0;
265		355
266	if (length < 0)	356	close (respipe [0]);
267	croak ("length must not be negative");	357	close (respipe [1]);
		358	create_pipe ();
268		359
269	Newz (0, req, 1, aio_cb);	360	atfork_parent ();
270
271	if (!req)
272	croak ("out of memory during aio_req allocation");
273
274	req->type = dowrite ? REQ_WRITE : REQ_READ;
275	req->fd = fd;
276	req->offset = offset;
277	req->length = length;
278	req->data = SvREFCNT_inc (data);
279	req->dataptr = (char *)svptr + dataoffset;
280	req->callback = SvREFCNT_inc (callback);
281
282	send_req (req);
283	}	361	}
		362
		363	/*****************************************************************************/
		364	/* work around various missing functions */
		365
		366	#if !HAVE_PREADWRITE
		367	# define pread aio_pread
		368	# define pwrite aio_pwrite
		369
		370	/*
		371	* make our pread/pwrite safe against themselves, but not against
		372	* normal read/write by using a mutex. slows down execution a lot,
		373	* but that's your problem, not mine.
		374	*/
		375	static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER;
		376
		377	static ssize_t
		378	pread (int fd, void *buf, size_t count, off_t offset)
		379	{
		380	ssize_t res;
		381	off_t ooffset;
		382
		383	pthread_mutex_lock (&iolock);
		384	ooffset = lseek (fd, 0, SEEK_CUR);
		385	lseek (fd, offset, SEEK_SET);
		386	res = read (fd, buf, count);
		387	lseek (fd, ooffset, SEEK_SET);
		388	pthread_mutex_unlock (&iolock);
		389
		390	return res;
		391	}
		392
		393	static ssize_t
		394	pwrite (int fd, void *buf, size_t count, off_t offset)
		395	{
		396	ssize_t res;
		397	off_t ooffset;
		398
		399	pthread_mutex_lock (&iolock);
		400	ooffset = lseek (fd, 0, SEEK_CUR);
		401	lseek (fd, offset, SEEK_SET);
		402	res = write (fd, buf, count);
		403	lseek (fd, offset, SEEK_SET);
		404	pthread_mutex_unlock (&iolock);
		405
		406	return res;
		407	}
		408	#endif
		409
		410	#if !HAVE_FDATASYNC
		411	# define fdatasync fsync
		412	#endif
		413
		414	#if !HAVE_READAHEAD
		415	# define readahead aio_readahead
		416
		417	static char readahead_buf[4096];
		418
		419	static ssize_t
		420	readahead (int fd, off_t offset, size_t count)
		421	{
		422	while (count > 0)
		423	{
		424	size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
		425
		426	pread (fd, readahead_buf, len, offset);
		427	offset += len;
		428	count -= len;
		429	}
		430
		431	errno = 0;
		432	}
		433	#endif
		434
		435	/* sendfile always needs emulation */
		436	static ssize_t
		437	sendfile_ (int ofd, int ifd, off_t offset, size_t count)
		438	{
		439	ssize_t res;
		440
		441	if (!count)
		442	return 0;
		443
		444	#if __linux
		445	res = sendfile (ofd, ifd, &offset, count);
		446
		447	#elif __freebsd
		448	/*
		449	* Of course, the freebsd sendfile is a dire hack with no thoughts
		450	* wasted on making it similar to other i/o functions.
		451	*/
		452	{
		453	off_t sbytes;
		454	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
		455
		456	if (!res && errno == EAGAIN)
		457	/* maybe on others, too, as usual, the manpage leaves you guessing */
		458	res = sbytes;
		459	}
		460
		461	#elif __hpux
		462	res = sendfile (ofd, ifd, offset, count, 0, 0);
		463
		464	#else
		465	res = -1;
		466	errno = ENOSYS;
		467	#endif
		468
		469	if (res < 0 && (errno == ENOSYS \|\| errno == EINVAL \|\| errno == ENOTSOCK))
		470	{
		471	/* emulate sendfile. this is a major pain in the ass */
		472	char *buf = malloc (4096);
		473	res = 0;
		474
		475	for (;;)
		476	{
		477	ssize_t cnt;
		478
		479	cnt = pread (ifd, buf, 4096, offset);
		480
		481	if (cnt <= 0)
		482	{
		483	if (cnt && !res) res = -1;
		484	break;
		485	}
		486
		487	cnt = write (ofd, buf, cnt);
		488
		489	if (cnt <= 0)
		490	{
		491	if (cnt && !res) res = -1;
		492	break;
		493	}
		494
		495	offset += cnt;
		496	res += cnt;
		497	}
		498
		499	{
		500	int errorno = errno;
		501	free (buf);
		502	errno = errorno;
		503	}
		504	}
		505
		506	return res;
		507	}
		508
		509	/*****************************************************************************/
284		510
285	static void *	511	static void *
286	aio_proc (void *thr_arg)	512	aio_proc (void *thr_arg)
287	{	513	{
288	aio_req req;	514	aio_req req;
…		…
316		542
317	switch (type)	543	switch (type)
318	{	544	{
319	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	545	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
320	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	546	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
321	#if SYS_readahead	547
322	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	548	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
323	#else	549	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
324	case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
325	#endif
326		550
327	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	551	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
328	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	552	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
329	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	553	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
330		554
331	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	555	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
332	case REQ_CLOSE: req->result = close (req->fd); break;	556	case REQ_CLOSE: req->result = close (req->fd); break;
333	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	557	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
		558	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
		559	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
334		560
		561	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
335	case REQ_FSYNC: req->result = fsync (req->fd); break;	562	case REQ_FSYNC: req->result = fsync (req->fd); break;
336	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
337		563
338	case REQ_QUIT:	564	case REQ_QUIT:
339	break;	565	break;
340		566
341	default:	567	default:
…		…
367	while (type != REQ_QUIT);	593	while (type != REQ_QUIT);
368		594
369	return 0;	595	return 0;
370	}	596	}
371		597
		598	#define dREQ \
		599	aio_req req; \
		600	\
		601	if (SvOK (callback) && !SvROK (callback)) \
		602	croak ("clalback must be undef or of reference type"); \
		603	\
		604	Newz (0, req, 1, aio_cb); \
		605	if (!req) \
		606	croak ("out of memory during aio_req allocation"); \
		607	\
		608	req->callback = newSVsv (callback);
		609
372	MODULE = IO::AIO PACKAGE = IO::AIO	610	MODULE = IO::AIO PACKAGE = IO::AIO
373		611
374	PROTOTYPES: ENABLE	612	PROTOTYPES: ENABLE
375		613
376	BOOT:	614	BOOT:
377	{	615	{
378	if (pipe (respipe))	616	create_pipe ();
379	croak ("unable to initialize result pipe");	617	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
380
381	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
382	croak ("cannot set result pipe to nonblocking mode");
383
384	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
385	croak ("cannot set result pipe to nonblocking mode");
386	}	618	}
387		619
388	void	620	void
389	min_parallel(nthreads)	621	min_parallel(nthreads)
390	int nthreads	622	int nthreads
391	PROTOTYPE: $	623	PROTOTYPE: $
392	CODE:
393	while (nthreads > started)
394	start_thread ();
395		624
396	void	625	void
397	max_parallel(nthreads)	626	max_parallel(nthreads)
398	int nthreads	627	int nthreads
399	PROTOTYPE: $	628	PROTOTYPE: $
400	CODE:
401	{
402	int cur = started;
403	while (cur > nthreads)
404	{
405	end_thread ();
406	cur--;
407	}
408
409	while (started > nthreads)
410	{
411	poll_wait ();
412	poll_cb ();
413	}
414	}
415		629
416	int	630	int
417	max_outstanding(nreqs)	631	max_outstanding(nreqs)
418	int nreqs	632	int nreqs
419	PROTOTYPE: $	633	PROTOTYPE: $
…		…
428	int mode	642	int mode
429	SV * callback	643	SV * callback
430	PROTOTYPE: $$$;$	644	PROTOTYPE: $$$;$
431	CODE:	645	CODE:
432	{	646	{
433	aio_req req;	647	dREQ;
434
435	Newz (0, req, 1, aio_cb);
436
437	if (!req)
438	croak ("out of memory during aio_req allocation");
439		648
440	req->type = REQ_OPEN;	649	req->type = REQ_OPEN;
441	req->data = newSVsv (pathname);	650	req->data = newSVsv (pathname);
442	req->dataptr = SvPV_nolen (req->data);	651	req->dataptr = SvPVbyte_nolen (req->data);
443	req->fd = flags;	652	req->fd = flags;
444	req->mode = mode;	653	req->mode = mode;
445	req->callback = SvREFCNT_inc (callback);
446		654
447	send_req (req);	655	send_req (req);
448	}	656	}
449		657
450	void	658	void
451	aio_close(fh,callback=&PL_sv_undef)	659	aio_close(fh,callback=&PL_sv_undef)
452	InputStream fh	660	SV * fh
453	SV * callback	661	SV * callback
454	PROTOTYPE: $;$	662	PROTOTYPE: $;$
455	ALIAS:	663	ALIAS:
456	aio_close = REQ_CLOSE	664	aio_close = REQ_CLOSE
457	aio_fsync = REQ_FSYNC	665	aio_fsync = REQ_FSYNC
458	aio_fdatasync = REQ_FDATASYNC	666	aio_fdatasync = REQ_FDATASYNC
459	CODE:	667	CODE:
460	{	668	{
461	aio_req req;	669	dREQ;
462
463	Newz (0, req, 1, aio_cb);
464
465	if (!req)
466	croak ("out of memory during aio_req allocation");
467		670
468	req->type = ix;	671	req->type = ix;
		672	req->fh = newSVsv (fh);
469	req->fd = PerlIO_fileno (fh);	673	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
470	req->callback = SvREFCNT_inc (callback);
471		674
472	send_req (req);	675	send_req (req);
473	}	676	}
474		677
475	void	678	void
476	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	679	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
477	InputStream fh	680	SV * fh
478	UV offset	681	UV offset
479	IV length	682	UV length
480	SV * data	683	SV * data
481	IV dataoffset	684	UV dataoffset
482	SV * callback	685	SV * callback
		686	ALIAS:
		687	aio_read = REQ_READ
		688	aio_write = REQ_WRITE
483	PROTOTYPE: $$$$$;$	689	PROTOTYPE: $$$$$;$
484	CODE:	690	CODE:
485	read_write (0, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);	691	{
		692	aio_req req;
		693	STRLEN svlen;
		694	char *svptr = SvPVbyte (data, svlen);
486		695
		696	SvUPGRADE (data, SVt_PV);
		697	SvPOK_on (data);
		698
		699	if (dataoffset < 0)
		700	dataoffset += svlen;
		701
		702	if (dataoffset < 0 \|\| dataoffset > svlen)
		703	croak ("data offset outside of string");
		704
		705	if (ix == REQ_WRITE)
		706	{
		707	/* write: check length and adjust. */
		708	if (length < 0 \|\| length + dataoffset > svlen)
		709	length = svlen - dataoffset;
		710	}
		711	else
		712	{
		713	/* read: grow scalar as necessary */
		714	svptr = SvGROW (data, length + dataoffset);
		715	}
		716
		717	if (length < 0)
		718	croak ("length must not be negative");
		719
		720	{
		721	dREQ;
		722
		723	req->type = ix;
		724	req->fh = newSVsv (fh);
		725	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
		726	: IoOFP (sv_2io (fh)));
		727	req->offset = offset;
		728	req->length = length;
		729	req->data = SvREFCNT_inc (data);
		730	req->dataptr = (char *)svptr + dataoffset;
		731
		732	if (!SvREADONLY (data))
		733	{
		734	SvREADONLY_on (data);
		735	req->data2ptr = (void *)data;
		736	}
		737
		738	send_req (req);
		739	}
		740	}
		741
487	void	742	void
488	aio_write(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	743	aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
489	OutputStream fh	744	SV * out_fh
		745	SV * in_fh
490	UV offset	746	UV in_offset
491	IV length	747	UV length
492	SV * data
493	IV dataoffset
494	SV * callback	748	SV * callback
495	PROTOTYPE: $$$$$;$	749	PROTOTYPE: $$$$;$
496	CODE:	750	CODE:
497	read_write (1, PerlIO_fileno (fh), offset, length, data, dataoffset, callback);	751	{
		752	dREQ;
		753
		754	req->type = REQ_SENDFILE;
		755	req->fh = newSVsv (out_fh);
		756	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
		757	req->fh2 = newSVsv (in_fh);
		758	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
		759	req->offset = in_offset;
		760	req->length = length;
		761
		762	send_req (req);
		763	}
498		764
499	void	765	void
500	aio_readahead(fh,offset,length,callback=&PL_sv_undef)	766	aio_readahead(fh,offset,length,callback=&PL_sv_undef)
501	InputStream fh	767	SV * fh
502	UV offset	768	UV offset
503	IV length	769	IV length
504	SV * callback	770	SV * callback
505	PROTOTYPE: $$$;$	771	PROTOTYPE: $$$;$
506	CODE:	772	CODE:
507	{	773	{
508	aio_req req;	774	dREQ;
509
510	if (length < 0)
511	croak ("length must not be negative");
512
513	Newz (0, req, 1, aio_cb);
514
515	if (!req)
516	croak ("out of memory during aio_req allocation");
517		775
518	req->type = REQ_READAHEAD;	776	req->type = REQ_READAHEAD;
		777	req->fh = newSVsv (fh);
519	req->fd = PerlIO_fileno (fh);	778	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
520	req->offset = offset;	779	req->offset = offset;
521	req->length = length;	780	req->length = length;
522	req->callback = SvREFCNT_inc (callback);
523		781
524	send_req (req);	782	send_req (req);
525	}	783	}
526		784
527	void	785	void
…		…
531	ALIAS:	789	ALIAS:
532	aio_stat = REQ_STAT	790	aio_stat = REQ_STAT
533	aio_lstat = REQ_LSTAT	791	aio_lstat = REQ_LSTAT
534	CODE:	792	CODE:
535	{	793	{
536	aio_req req;	794	dREQ;
537
538	Newz (0, req, 1, aio_cb);
539
540	if (!req)
541	croak ("out of memory during aio_req allocation");
542		795
543	New (0, req->statdata, 1, Stat_t);	796	New (0, req->statdata, 1, Stat_t);
544
545	if (!req->statdata)	797	if (!req->statdata)
		798	{
		799	free_req (req);
546	croak ("out of memory during aio_req->statdata allocation");	800	croak ("out of memory during aio_req->statdata allocation");
		801	}
547		802
548	if (SvPOK (fh_or_path))	803	if (SvPOK (fh_or_path))
549	{	804	{
550	req->type = ix;	805	req->type = ix;
551	req->data = newSVsv (fh_or_path);	806	req->data = newSVsv (fh_or_path);
552	req->dataptr = SvPV_nolen (req->data);	807	req->dataptr = SvPVbyte_nolen (req->data);
553	}	808	}
554	else	809	else
555	{	810	{
556	req->type = REQ_FSTAT;	811	req->type = REQ_FSTAT;
		812	req->fh = newSVsv (fh_or_path);
557	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	813	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
558	}	814	}
559
560	req->callback = SvREFCNT_inc (callback);
561		815
562	send_req (req);	816	send_req (req);
563	}	817	}
564		818
565	void	819	void
566	aio_unlink(pathname,callback=&PL_sv_undef)	820	aio_unlink(pathname,callback=&PL_sv_undef)
567	SV * pathname	821	SV * pathname
568	SV * callback	822	SV * callback
		823	ALIAS:
		824	aio_unlink = REQ_UNLINK
		825	aio_rmdir = REQ_RMDIR
569	CODE:	826	CODE:
570	{	827	{
571	aio_req req;	828	dREQ;
572		829
573	Newz (0, req, 1, aio_cb);	830	req->type = ix;
		831	req->data = newSVsv (pathname);
		832	req->dataptr = SvPVbyte_nolen (req->data);
574		833
575	if (!req)	834	send_req (req);
576	croak ("out of memory during aio_req allocation");	835	}
		836
		837	void
		838	aio_symlink(oldpath,newpath,callback=&PL_sv_undef)
		839	SV * oldpath
		840	SV * newpath
		841	SV * callback
		842	CODE:
		843	{
		844	dREQ;
577		845
578	req->type = REQ_UNLINK;	846	req->type = REQ_SYMLINK;
		847	req->fh = newSVsv (oldpath);
		848	req->data2ptr = SvPVbyte_nolen (req->fh);
579	req->data = newSVsv (pathname);	849	req->data = newSVsv (newpath);
580	req->dataptr = SvPV_nolen (req->data);	850	req->dataptr = SvPVbyte_nolen (req->data);
581	req->callback = SvREFCNT_inc (callback);
582		851
583	send_req (req);	852	send_req (req);
584	}	853	}
585		854
586	void	855	void

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.11 by root, Wed Jul 20 21:55:27 2005 UTC vs. Revision 1.34 by root, Tue Aug 23 00:03:14 2005 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.11 by root, Wed Jul 20 21:55:27 2005 UTC vs.
Revision 1.34 by root, Tue Aug 23 00:03:14 2005 UTC