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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.13 by root, Fri Jul 22 08:25:22 2005 UTC vs.
Revision 1.32 by root, Mon Aug 22 23:20:37 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	# endif
16	#endif	29	#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		30
24	#if __ia64	31	#if __ia64
25	# define STACKSIZE 65536	32	# define STACKSIZE 65536
26	#else	33	#else
27	# define STACKSIZE 4096	34	# define STACKSIZE 4096
29		36
30	enum {	37	enum {
31	REQ_QUIT,	38	REQ_QUIT,
32	REQ_OPEN, REQ_CLOSE,	39	REQ_OPEN, REQ_CLOSE,
33	REQ_READ, REQ_WRITE, REQ_READAHEAD,	40	REQ_READ, REQ_WRITE, REQ_READAHEAD,
		41	REQ_SENDFILE,
34	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,	42	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
35	REQ_FSYNC, REQ_FDATASYNC,	43	REQ_FSYNC, REQ_FDATASYNC,
		44	REQ_UNLINK, REQ_RMDIR,
		45	REQ_SYMLINK,
36	};	46	};
37		47
38	typedef struct aio_cb {	48	typedef struct aio_cb {
39	struct aio_cb *volatile next;	49	struct aio_cb *volatile next;
40		50
41	int type;	51	int type;
42		52
43	int fd;	53	int fd, fd2;
44	off_t offset;	54	off_t offset;
45	size_t length;	55	size_t length;
46	ssize_t result;	56	ssize_t result;
47	mode_t mode; /* open */	57	mode_t mode; /* open */
48	int errorno;	58	int errorno;
49	SV data, callback, *fh;	59	SV data, callback;
50	void *dataptr;	60	SV fh, fh2;
		61	void dataptr, data2ptr;
51	STRLEN dataoffset;	62	STRLEN dataoffset;
52		63
53	Stat_t *statdata;	64	Stat_t *statdata;
54	} aio_cb;	65	} aio_cb;
55		66
56	typedef aio_cb *aio_req;	67	typedef aio_cb *aio_req;
57		68
58	static int started;	69	static int started, wanted;
59	static volatile int nreqs;	70	static volatile int nreqs;
60	static int max_outstanding = 1<<30;	71	static int max_outstanding = 1<<30;
61	static int respipe [2];	72	static int respipe [2];
62		73
63	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	74	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
64	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	75	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
65	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	76	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
66		77
67	static volatile aio_req reqs, reqe; /* queue start, queue end */	78	static volatile aio_req reqs, reqe; /* queue start, queue end */
68	static volatile aio_req ress, rese; /* queue start, queue end */	79	static volatile aio_req ress, rese; /* queue start, queue end */
		80
		81	static void free_req (aio_req req)
		82	{
		83	if (req->data)
		84	SvREFCNT_dec (req->data);
		85
		86	if (req->fh)
		87	SvREFCNT_dec (req->fh);
		88
		89	if (req->fh2)
		90	SvREFCNT_dec (req->fh2);
		91
		92	if (req->statdata)
		93	Safefree (req->statdata);
		94
		95	if (req->callback)
		96	SvREFCNT_dec (req->callback);
		97
		98	Safefree (req);
		99	}
69		100
70	static void	101	static void
71	poll_wait ()	102	poll_wait ()
72	{	103	{
73	if (nreqs && !ress)	104	if (nreqs && !ress)
…		…
83	static int	114	static int
84	poll_cb ()	115	poll_cb ()
85	{	116	{
86	dSP;	117	dSP;
87	int count = 0;	118	int count = 0;
		119	int do_croak = 0;
88	aio_req req, prv;	120	aio_req req;
89		121
90	pthread_mutex_lock (&reslock);	122	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	{	123	{
		124	pthread_mutex_lock (&reslock);
		125	req = ress;
		126
		127	if (req)
		128	{
		129	ress = req->next;
		130
		131	if (!ress)
		132	{
		133	/* read any signals sent by the worker threads */
		134	char buf [32];
		135	while (read (respipe [0], buf, 32) == 32)
		136	;
		137
		138	rese = 0;
		139	}
		140	}
		141
		142	pthread_mutex_unlock (&reslock);
		143
		144	if (!req)
		145	break;
		146
106	nreqs--;	147	nreqs--;
107		148
108	if (req->type == REQ_QUIT)	149	if (req->type == REQ_QUIT)
109	started--;	150	started--;
110	else	151	else
111	{	152	{
112	int errorno = errno;	153	int errorno = errno;
113	errno = req->errorno;	154	errno = req->errorno;
114		155
115	if (req->type == REQ_READ)	156	if (req->type == REQ_READ)
116	SvCUR_set (req->data, req->dataoffset	157	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
117	+ req->result > 0 ? req->result : 0);
118		158
		159	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
		160	SvREADONLY_off (req->data);
		161
119	if (req->data)	162	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	{	163	{
127	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	164	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
128	PL_laststatval = req->result;	165	PL_laststatval = req->result;
129	PL_statcache = *(req->statdata);	166	PL_statcache = *(req->statdata);
130
131	Safefree (req->statdata);
132	}	167	}
133		168
134	ENTER;	169	ENTER;
135	PUSHMARK (SP);	170	PUSHMARK (SP);
136	XPUSHs (sv_2mortal (newSViv (req->result)));	171	XPUSHs (sv_2mortal (newSViv (req->result)));
…		…
153	if (SvOK (req->callback))	188	if (SvOK (req->callback))
154	{	189	{
155	PUTBACK;	190	PUTBACK;
156	call_sv (req->callback, G_VOID \| G_EVAL);	191	call_sv (req->callback, G_VOID \| G_EVAL);
157	SPAGAIN;	192	SPAGAIN;
		193
		194	if (SvTRUE (ERRSV))
		195	{
		196	free_req (req);
		197	croak (0);
		198	}
158	}	199	}
159		200
160	LEAVE;	201	LEAVE;
161
162	if (req->callback)
163	SvREFCNT_dec (req->callback);
164		202
165	errno = errorno;	203	errno = errorno;
166	count++;	204	count++;
167	}	205	}
168		206
169	prv = req;	207	free_req (req);
170	req = req->next;
171	Safefree (prv);
172
173	/* TODO: croak on errors? */
174	}	208	}
175		209
176	return count;	210	return count;
177	}	211	}
178		212
…		…
199	}	233	}
200		234
201	static void	235	static void
202	send_req (aio_req req)	236	send_req (aio_req req)
203	{	237	{
		238	while (started < wanted && nreqs >= started)
		239	start_thread ();
		240
204	nreqs++;	241	nreqs++;
205		242
206	pthread_mutex_lock (&reqlock);	243	pthread_mutex_lock (&reqlock);
207		244
208	req->next = 0;	245	req->next = 0;
…		…
216	reqe = reqs = req;	253	reqe = reqs = req;
217		254
218	pthread_cond_signal (&reqwait);	255	pthread_cond_signal (&reqwait);
219	pthread_mutex_unlock (&reqlock);	256	pthread_mutex_unlock (&reqlock);
220		257
221	while (nreqs > max_outstanding)	258	if (nreqs > max_outstanding)
		259	for (;;)
		260	{
		261	poll_cb ();
		262
		263	if (nreqs <= max_outstanding)
		264	break;
		265
		266	poll_wait ();
		267	}
		268	}
		269
		270	static void
		271	end_thread (void)
		272	{
		273	aio_req req;
		274	Newz (0, req, 1, aio_cb);
		275	req->type = REQ_QUIT;
		276
		277	send_req (req);
		278	}
		279
		280	static void min_parallel (int nthreads)
		281	{
		282	if (wanted < nthreads)
		283	wanted = nthreads;
		284	}
		285
		286	static void max_parallel (int nthreads)
		287	{
		288	int cur = started;
		289
		290	if (wanted > nthreads)
		291	wanted = nthreads;
		292
		293	while (cur > wanted)
		294	{
		295	end_thread ();
		296	cur--;
		297	}
		298
		299	while (started > wanted)
222	{	300	{
223	poll_wait ();	301	poll_wait ();
224	poll_cb ();	302	poll_cb ();
225	}	303	}
226	}	304	}
227		305
228	static void	306	static void create_pipe ()
229	end_thread (void)
230	{	307	{
		308	if (pipe (respipe))
		309	croak ("unable to initialize result pipe");
		310
		311	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
		312	croak ("cannot set result pipe to nonblocking mode");
		313
		314	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		315	croak ("cannot set result pipe to nonblocking mode");
		316	}
		317
		318	static void atfork_prepare (void)
		319	{
		320	pthread_mutex_lock (&reqlock);
		321	pthread_mutex_lock (&reslock);
		322	}
		323
		324	static void atfork_parent (void)
		325	{
		326	pthread_mutex_unlock (&reslock);
		327	pthread_mutex_unlock (&reqlock);
		328	}
		329
		330	static void atfork_child (void)
		331	{
231	aio_req req;	332	aio_req prv;
232	New (0, req, 1, aio_cb);
233	req->type = REQ_QUIT;
234		333
235	send_req (req);	334	started = 0;
		335
		336	while (reqs)
		337	{
		338	prv = reqs;
		339	reqs = prv->next;
		340	free_req (prv);
		341	}
		342
		343	reqs = reqe = 0;
		344
		345	while (ress)
		346	{
		347	prv = ress;
		348	ress = prv->next;
		349	free_req (prv);
		350	}
		351
		352	ress = rese = 0;
		353
		354	close (respipe [0]);
		355	close (respipe [1]);
		356	create_pipe ();
		357
		358	atfork_parent ();
236	}	359	}
		360
		361	/*****************************************************************************/
		362	/* work around various missing functions */
		363
		364	#if !HAVE_PREADWRITE
		365	# define pread aio_pread
		366	# define pwrite aio_pwrite
		367
		368	/*
		369	* make our pread/pwrite safe against themselves, but not against
		370	* normal read/write by using a mutex. slows down execution a lot,
		371	* but that's your problem, not mine.
		372	*/
		373	static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER;
		374
		375	static ssize_t
		376	pread (int fd, void *buf, size_t count, off_t offset)
		377	{
		378	ssize_t res;
		379	off_t ooffset;
		380
		381	pthread_mutex_lock (&iolock);
		382	ooffset = lseek (fd, 0, SEEK_CUR);
		383	lseek (fd, offset, SEEK_SET);
		384	res = read (fd, buf, count);
		385	lseek (fd, ooffset, SEEK_SET);
		386	pthread_mutex_unlock (&iolock);
		387
		388	return res;
		389	}
		390
		391	static ssize_t
		392	pwrite (int fd, void *buf, size_t count, off_t offset)
		393	{
		394	ssize_t res;
		395	off_t ooffset;
		396
		397	pthread_mutex_lock (&iolock);
		398	ooffset = lseek (fd, 0, SEEK_CUR);
		399	lseek (fd, offset, SEEK_SET);
		400	res = write (fd, buf, count);
		401	lseek (fd, offset, SEEK_SET);
		402	pthread_mutex_unlock (&iolock);
		403
		404	return res;
		405	}
		406	#endif
		407
		408	#if !HAVE_FDATASYNC
		409	# define fdatasync fsync
		410	#endif
		411
		412	#if !HAVE_READAHEAD
		413	# define readahead aio_readahead
		414
		415	static char readahead_buf[4096];
		416
		417	static ssize_t
		418	readahead (int fd, off_t offset, size_t count)
		419	{
		420	while (count > 0)
		421	{
		422	size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
		423
		424	pread (fd, readahead_buf, len, offset);
		425	offset += len;
		426	count -= len;
		427	}
		428
		429	errno = 0;
		430	}
		431	#endif
		432
		433	/* sendfile always needs emulation */
		434	static ssize_t
		435	sendfile_ (int ofd, int ifd, off_t offset, size_t count)
		436	{
		437	ssize_t res;
		438
		439	if (!count)
		440	return 0;
		441
		442	#if __linux
		443	res = sendfile (ofd, ifd, &offset, count);
		444
		445	#elif __freebsd
		446	/*
		447	* Of course, the freebsd sendfile is a dire hack with no thoughts
		448	* wasted on making it similar to other i/o functions.
		449	*/
		450	{
		451	off_t sbytes;
		452	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
		453
		454	if (!res && errno == EAGAIN)
		455	res = sbytes;
		456	}
		457
		458	#elif __hpux
		459	res = sendfile (ofd, ifd, offset, count, 0, 0);
		460
		461	#else
		462	res = -1;
		463	errno = ENOSYS;
		464	#endif
		465
		466	if (res < 0 && (errno == ENOSYS \|\| errno == EINVAL \|\| errno == ENOTSOCK))
		467	{
		468	/* emulate sendfile. this is a major pain in the ass */
		469	char *buf = malloc (4096);
		470	res = 0;
		471
		472	for (;;)
		473	{
		474	ssize_t cnt;
		475
		476	cnt = pread (ifd, buf, 4096, offset);
		477
		478	if (cnt <= 0)
		479	{
		480	if (cnt && !res) res = -1;
		481	break;
		482	}
		483
		484	cnt = write (ofd, buf, cnt);
		485
		486	if (cnt <= 0)
		487	{
		488	if (cnt && !res) res = -1;
		489	break;
		490	}
		491
		492	offset += cnt;
		493	res += cnt;
		494	}
		495
		496	{
		497	int errorno = errno;
		498	free (buf);
		499	errno = errorno;
		500	}
		501	}
		502
		503	return res;
		504	}
		505
		506	/*****************************************************************************/
237		507
238	static void *	508	static void *
239	aio_proc (void *thr_arg)	509	aio_proc (void *thr_arg)
240	{	510	{
241	aio_req req;	511	aio_req req;
…		…
269		539
270	switch (type)	540	switch (type)
271	{	541	{
272	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	542	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
273	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	543	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
274	#if SYS_readahead	544
275	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	545	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
276	#else	546	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
277	case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
278	#endif
279		547
280	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	548	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
281	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	549	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
282	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	550	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
283		551
284	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	552	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
285	case REQ_CLOSE: req->result = close (req->fd); break;	553	case REQ_CLOSE: req->result = close (req->fd); break;
286	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	554	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
		555	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
		556	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
287		557
		558	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
288	case REQ_FSYNC: req->result = fsync (req->fd); break;	559	case REQ_FSYNC: req->result = fsync (req->fd); break;
289	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
290		560
291	case REQ_QUIT:	561	case REQ_QUIT:
292	break;	562	break;
293		563
294	default:	564	default:
…		…
320	while (type != REQ_QUIT);	590	while (type != REQ_QUIT);
321		591
322	return 0;	592	return 0;
323	}	593	}
324		594
		595	#define dREQ \
		596	aio_req req; \
		597	\
		598	if (SvOK (callback) && !SvROK (callback)) \
		599	croak ("clalback must be undef or of reference type"); \
		600	\
		601	Newz (0, req, 1, aio_cb); \
		602	if (!req) \
		603	croak ("out of memory during aio_req allocation"); \
		604	\
		605	req->callback = newSVsv (callback);
		606
325	MODULE = IO::AIO PACKAGE = IO::AIO	607	MODULE = IO::AIO PACKAGE = IO::AIO
326		608
327	PROTOTYPES: ENABLE	609	PROTOTYPES: ENABLE
328		610
329	BOOT:	611	BOOT:
330	{	612	{
331	if (pipe (respipe))	613	create_pipe ();
332	croak ("unable to initialize result pipe");	614	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
333
334	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
335	croak ("cannot set result pipe to nonblocking mode");
336
337	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
338	croak ("cannot set result pipe to nonblocking mode");
339	}	615	}
340		616
341	void	617	void
342	min_parallel(nthreads)	618	min_parallel(nthreads)
343	int nthreads	619	int nthreads
344	PROTOTYPE: $	620	PROTOTYPE: $
345	CODE:
346	while (nthreads > started)
347	start_thread ();
348		621
349	void	622	void
350	max_parallel(nthreads)	623	max_parallel(nthreads)
351	int nthreads	624	int nthreads
352	PROTOTYPE: $	625	PROTOTYPE: $
353	CODE:
354	{
355	int cur = started;
356	while (cur > nthreads)
357	{
358	end_thread ();
359	cur--;
360	}
361
362	while (started > nthreads)
363	{
364	poll_wait ();
365	poll_cb ();
366	}
367	}
368		626
369	int	627	int
370	max_outstanding(nreqs)	628	max_outstanding(nreqs)
371	int nreqs	629	int nreqs
372	PROTOTYPE: $	630	PROTOTYPE: $
…		…
381	int mode	639	int mode
382	SV * callback	640	SV * callback
383	PROTOTYPE: $$$;$	641	PROTOTYPE: $$$;$
384	CODE:	642	CODE:
385	{	643	{
386	aio_req req;	644	dREQ;
387
388	Newz (0, req, 1, aio_cb);
389
390	if (!req)
391	croak ("out of memory during aio_req allocation");
392		645
393	req->type = REQ_OPEN;	646	req->type = REQ_OPEN;
394	req->data = newSVsv (pathname);	647	req->data = newSVsv (pathname);
395	req->dataptr = SvPV_nolen (req->data);	648	req->dataptr = SvPVbyte_nolen (req->data);
396	req->fd = flags;	649	req->fd = flags;
397	req->mode = mode;	650	req->mode = mode;
398	req->callback = SvREFCNT_inc (callback);
399		651
400	send_req (req);	652	send_req (req);
401	}	653	}
402		654
403	void	655	void
…		…
409	aio_close = REQ_CLOSE	661	aio_close = REQ_CLOSE
410	aio_fsync = REQ_FSYNC	662	aio_fsync = REQ_FSYNC
411	aio_fdatasync = REQ_FDATASYNC	663	aio_fdatasync = REQ_FDATASYNC
412	CODE:	664	CODE:
413	{	665	{
414	aio_req req;	666	dREQ;
415
416	Newz (0, req, 1, aio_cb);
417
418	if (!req)
419	croak ("out of memory during aio_req allocation");
420		667
421	req->type = ix;	668	req->type = ix;
422	req->fh = newSVsv (fh);	669	req->fh = newSVsv (fh);
423	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	670	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
424	req->callback = SvREFCNT_inc (callback);
425		671
426	send_req (req);	672	send_req (req);
427	}	673	}
428		674
429	void	675	void
430	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	676	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
431	SV * fh	677	SV * fh
432	UV offset	678	UV offset
433	IV length	679	UV length
434	SV * data	680	SV * data
435	IV dataoffset	681	UV dataoffset
436	SV * callback	682	SV * callback
437	ALIAS:	683	ALIAS:
438	aio_read = REQ_READ	684	aio_read = REQ_READ
439	aio_write = REQ_WRITE	685	aio_write = REQ_WRITE
440	PROTOTYPE: $$$$$;$	686	PROTOTYPE: $$$$$;$
441	CODE:	687	CODE:
442	{	688	{
443	aio_req req;	689	aio_req req;
444	STRLEN svlen;	690	STRLEN svlen;
445	char *svptr = SvPV (data, svlen);	691	char *svptr = SvPVbyte (data, svlen);
446		692
447	SvUPGRADE (data, SVt_PV);	693	SvUPGRADE (data, SVt_PV);
448	SvPOK_on (data);	694	SvPOK_on (data);
449		695
450	if (dataoffset < 0)	696	if (dataoffset < 0)
…		…
466	}	712	}
467		713
468	if (length < 0)	714	if (length < 0)
469	croak ("length must not be negative");	715	croak ("length must not be negative");
470		716
471	Newz (0, req, 1, aio_cb);	717	{
		718	dREQ;
472		719
473	if (!req)
474	croak ("out of memory during aio_req allocation");
475
476	req->type = ix;	720	req->type = ix;
477	req->fh = newSVsv (fh);	721	req->fh = newSVsv (fh);
478	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	722	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
479	: IoOFP (sv_2io (fh)));	723	: IoOFP (sv_2io (fh)));
480	req->offset = offset;	724	req->offset = offset;
		725	req->length = length;
		726	req->data = SvREFCNT_inc (data);
		727	req->dataptr = (char *)svptr + dataoffset;
		728
		729	if (!SvREADONLY (data))
		730	{
		731	SvREADONLY_on (data);
		732	req->data2ptr = (void *)data;
		733	}
		734
		735	send_req (req);
		736	}
		737	}
		738
		739	void
		740	aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
		741	SV * out_fh
		742	SV * in_fh
		743	UV in_offset
		744	UV length
		745	SV * callback
		746	PROTOTYPE: $$$$;$
		747	CODE:
		748	{
		749	dREQ;
		750
		751	req->type = REQ_SENDFILE;
		752	req->fh = newSVsv (out_fh);
		753	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
		754	req->fh2 = newSVsv (in_fh);
		755	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
		756	req->offset = in_offset;
481	req->length = length;	757	req->length = length;
482	req->data = SvREFCNT_inc (data);
483	req->dataptr = (char *)svptr + dataoffset;
484	req->callback = SvREFCNT_inc (callback);
485		758
486	send_req (req);	759	send_req (req);
487	}	760	}
488		761
489	void	762	void
…		…
493	IV length	766	IV length
494	SV * callback	767	SV * callback
495	PROTOTYPE: $$$;$	768	PROTOTYPE: $$$;$
496	CODE:	769	CODE:
497	{	770	{
498	aio_req req;	771	dREQ;
499
500	if (length < 0)
501	croak ("length must not be negative");
502
503	Newz (0, req, 1, aio_cb);
504
505	if (!req)
506	croak ("out of memory during aio_req allocation");
507		772
508	req->type = REQ_READAHEAD;	773	req->type = REQ_READAHEAD;
509	req->fh = newSVsv (fh);	774	req->fh = newSVsv (fh);
510	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	775	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
511	req->offset = offset;	776	req->offset = offset;
512	req->length = length;	777	req->length = length;
513	req->callback = SvREFCNT_inc (callback);
514		778
515	send_req (req);	779	send_req (req);
516	}	780	}
517		781
518	void	782	void
…		…
522	ALIAS:	786	ALIAS:
523	aio_stat = REQ_STAT	787	aio_stat = REQ_STAT
524	aio_lstat = REQ_LSTAT	788	aio_lstat = REQ_LSTAT
525	CODE:	789	CODE:
526	{	790	{
527	aio_req req;	791	dREQ;
528
529	Newz (0, req, 1, aio_cb);
530
531	if (!req)
532	croak ("out of memory during aio_req allocation");
533		792
534	New (0, req->statdata, 1, Stat_t);	793	New (0, req->statdata, 1, Stat_t);
535
536	if (!req->statdata)	794	if (!req->statdata)
		795	{
		796	free_req (req);
537	croak ("out of memory during aio_req->statdata allocation");	797	croak ("out of memory during aio_req->statdata allocation");
		798	}
538		799
539	if (SvPOK (fh_or_path))	800	if (SvPOK (fh_or_path))
540	{	801	{
541	req->type = ix;	802	req->type = ix;
542	req->data = newSVsv (fh_or_path);	803	req->data = newSVsv (fh_or_path);
543	req->dataptr = SvPV_nolen (req->data);	804	req->dataptr = SvPVbyte_nolen (req->data);
544	}	805	}
545	else	806	else
546	{	807	{
547	req->type = REQ_FSTAT;	808	req->type = REQ_FSTAT;
548	req->fh = newSVsv (fh_or_path);	809	req->fh = newSVsv (fh_or_path);
549	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	810	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
550	}	811	}
551		812
552	req->callback = SvREFCNT_inc (callback);
553
554	send_req (req);	813	send_req (req);
555	}	814	}
556		815
557	void	816	void
558	aio_unlink(pathname,callback=&PL_sv_undef)	817	aio_unlink(pathname,callback=&PL_sv_undef)
559	SV * pathname	818	SV * pathname
560	SV * callback	819	SV * callback
		820	ALIAS:
		821	aio_unlink = REQ_UNLINK
		822	aio_rmdir = REQ_RMDIR
561	CODE:	823	CODE:
562	{	824	{
563	aio_req req;	825	dREQ;
564		826
565	Newz (0, req, 1, aio_cb);	827	req->type = ix;
		828	req->data = newSVsv (pathname);
		829	req->dataptr = SvPVbyte_nolen (req->data);
566		830
567	if (!req)	831	send_req (req);
568	croak ("out of memory during aio_req allocation");	832	}
		833
		834	void
		835	aio_symlink(oldpath,newpath,callback=&PL_sv_undef)
		836	SV * oldpath
		837	SV * newpath
		838	SV * callback
		839	CODE:
		840	{
		841	dREQ;
569		842
570	req->type = REQ_UNLINK;	843	req->type = REQ_SYMLINK;
		844	req->fh = newSVsv (oldpath);
		845	req->data2ptr = SvPVbyte_nolen (req->fh);
571	req->data = newSVsv (pathname);	846	req->data = newSVsv (newpath);
572	req->dataptr = SvPV_nolen (req->data);	847	req->dataptr = SvPVbyte_nolen (req->data);
573	req->callback = SvREFCNT_inc (callback);
574		848
575	send_req (req);	849	send_req (req);
576	}	850	}
577		851
578	void	852	void

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.13 by root, Fri Jul 22 08:25:22 2005 UTC vs. Revision 1.32 by root, Mon Aug 22 23:20:37 2005 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.13 by root, Fri Jul 22 08:25:22 2005 UTC vs.
Revision 1.32 by root, Mon Aug 22 23:20:37 2005 UTC