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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.15 by root, Sat Jul 23 18:19:56 2005 UTC vs.
Revision 1.34 by root, Tue Aug 23 00:03:14 2005 UTC

…		…
		1	#define _REENTRANT 1
		2	#include <errno.h>
		3
1	#include "EXTERN.h"	4	#include "EXTERN.h"
2	#include "perl.h"	5	#include "perl.h"
3	#include "XSUB.h"	6	#include "XSUB.h"
		7
		8	#include "autoconf/config.h"
		9
		10	#include <pthread.h>
4		11
5	#include <sys/types.h>	12	#include <sys/types.h>
6	#include <sys/stat.h>	13	#include <sys/stat.h>
7		14
8	#include <unistd.h>	15	#include <unistd.h>
9	#include <fcntl.h>	16	#include <fcntl.h>
10	#include <signal.h>	17	#include <signal.h>
11	#include <sched.h>	18	#include <sched.h>
		19
		20	#if HAVE_SENDFILE
12	#if __linux	21	# if __linux
		22	# include <sys/sendfile.h>
		23	# elif __freebsd
13	#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
14	#endif	31	#endif
15
16	#include <pthread.h>
17
18	typedef void InputStream; / hack, but 5.6.1 is simply toooo old ;) */
19	typedef void OutputStream; / hack, but 5.6.1 is simply toooo old ;) */
20	typedef void InOutStream; / hack, but 5.6.1 is simply toooo old ;) */
21		32
22	#if __ia64	33	#if __ia64
23	# define STACKSIZE 65536	34	# define STACKSIZE 65536
24	#else	35	#else
25	# define STACKSIZE 4096	36	# define STACKSIZE 4096
27		38
28	enum {	39	enum {
29	REQ_QUIT,	40	REQ_QUIT,
30	REQ_OPEN, REQ_CLOSE,	41	REQ_OPEN, REQ_CLOSE,
31	REQ_READ, REQ_WRITE, REQ_READAHEAD,	42	REQ_READ, REQ_WRITE, REQ_READAHEAD,
		43	REQ_SENDFILE,
32	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,	44	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
33	REQ_FSYNC, REQ_FDATASYNC,	45	REQ_FSYNC, REQ_FDATASYNC,
		46	REQ_UNLINK, REQ_RMDIR,
		47	REQ_SYMLINK,
34	};	48	};
35		49
36	typedef struct aio_cb {	50	typedef struct aio_cb {
37	struct aio_cb *volatile next;	51	struct aio_cb *volatile next;
38		52
39	int type;	53	int type;
40		54
41	int fd;	55	int fd, fd2;
42	off_t offset;	56	off_t offset;
43	size_t length;	57	size_t length;
44	ssize_t result;	58	ssize_t result;
45	mode_t mode; /* open */	59	mode_t mode; /* open */
46	int errorno;	60	int errorno;
47	SV data, callback, *fh;	61	SV data, callback;
48	void *dataptr;	62	SV fh, fh2;
		63	void dataptr, data2ptr;
49	STRLEN dataoffset;	64	STRLEN dataoffset;
50		65
51	Stat_t *statdata;	66	Stat_t *statdata;
52	} aio_cb;	67	} aio_cb;
53		68
54	typedef aio_cb *aio_req;	69	typedef aio_cb *aio_req;
55		70
56	static int started;	71	static int started, wanted;
57	static volatile int nreqs;	72	static volatile int nreqs;
58	static int max_outstanding = 1<<30;	73	static int max_outstanding = 1<<30;
59	static int respipe [2];	74	static int respipe [2];
60		75
61	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	76	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
62	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	77	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
63	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	78	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
64		79
65	static volatile aio_req reqs, reqe; /* queue start, queue end */	80	static volatile aio_req reqs, reqe; /* queue start, queue end */
66	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	}
67		102
68	static void	103	static void
69	poll_wait ()	104	poll_wait ()
70	{	105	{
71	if (nreqs && !ress)	106	if (nreqs && !ress)
…		…
81	static int	116	static int
82	poll_cb ()	117	poll_cb ()
83	{	118	{
84	dSP;	119	dSP;
85	int count = 0;	120	int count = 0;
		121	int do_croak = 0;
86	aio_req req, prv;	122	aio_req req;
87		123
88	pthread_mutex_lock (&reslock);	124	for (;;)
89
90	{
91	/* read any signals sent by the worker threads */
92	char buf [32];
93	while (read (respipe [0], buf, 32) > 0)
94	;
95	}
96
97	req = ress;
98	ress = rese = 0;
99
100	pthread_mutex_unlock (&reslock);
101
102	while (req)
103	{	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
104	nreqs--;	149	nreqs--;
105		150
106	if (req->type == REQ_QUIT)	151	if (req->type == REQ_QUIT)
107	started--;	152	started--;
108	else	153	else
109	{	154	{
110	int errorno = errno;	155	int errorno = errno;
111	errno = req->errorno;	156	errno = req->errorno;
112		157
113	if (req->type == REQ_READ)	158	if (req->type == REQ_READ)
114	SvCUR_set (req->data, req->dataoffset	159	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
115	+ req->result > 0 ? req->result : 0);
116		160
		161	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
		162	SvREADONLY_off (req->data);
		163
117	if (req->data)	164	if (req->statdata)
118	SvREFCNT_dec (req->data);
119
120	if (req->fh)
121	SvREFCNT_dec (req->fh);
122
123	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)
124	{	165	{
125	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	166	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
126	PL_laststatval = req->result;	167	PL_laststatval = req->result;
127	PL_statcache = *(req->statdata);	168	PL_statcache = *(req->statdata);
128
129	Safefree (req->statdata);
130	}	169	}
131		170
132	ENTER;	171	ENTER;
133	PUSHMARK (SP);	172	PUSHMARK (SP);
134	XPUSHs (sv_2mortal (newSViv (req->result)));	173	XPUSHs (sv_2mortal (newSViv (req->result)));
…		…
151	if (SvOK (req->callback))	190	if (SvOK (req->callback))
152	{	191	{
153	PUTBACK;	192	PUTBACK;
154	call_sv (req->callback, G_VOID \| G_EVAL);	193	call_sv (req->callback, G_VOID \| G_EVAL);
155	SPAGAIN;	194	SPAGAIN;
		195
		196	if (SvTRUE (ERRSV))
		197	{
		198	free_req (req);
		199	croak (0);
		200	}
156	}	201	}
157		202
158	LEAVE;	203	LEAVE;
159
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	return count;	212	return count;
175	}	213	}
176		214
…		…
197	}	235	}
198		236
199	static void	237	static void
200	send_req (aio_req req)	238	send_req (aio_req req)
201	{	239	{
		240	while (started < wanted && nreqs >= started)
		241	start_thread ();
		242
202	nreqs++;	243	nreqs++;
203		244
204	pthread_mutex_lock (&reqlock);	245	pthread_mutex_lock (&reqlock);
205		246
206	req->next = 0;	247	req->next = 0;
…		…
214	reqe = reqs = req;	255	reqe = reqs = req;
215		256
216	pthread_cond_signal (&reqwait);	257	pthread_cond_signal (&reqwait);
217	pthread_mutex_unlock (&reqlock);	258	pthread_mutex_unlock (&reqlock);
218		259
219	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)
220	{	302	{
221	poll_wait ();	303	poll_wait ();
222	poll_cb ();	304	poll_cb ();
223	}	305	}
224	}	306	}
225		307
226	static void	308	static void create_pipe ()
227	end_thread (void)
228	{	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	{
229	aio_req req;	334	aio_req prv;
230	New (0, req, 1, aio_cb);
231	req->type = REQ_QUIT;
232		335
233	send_req (req);	336	started = 0;
		337
		338	while (reqs)
		339	{
		340	prv = reqs;
		341	reqs = prv->next;
		342	free_req (prv);
		343	}
		344
		345	reqs = reqe = 0;
		346
		347	while (ress)
		348	{
		349	prv = ress;
		350	ress = prv->next;
		351	free_req (prv);
		352	}
		353
		354	ress = rese = 0;
		355
		356	close (respipe [0]);
		357	close (respipe [1]);
		358	create_pipe ();
		359
		360	atfork_parent ();
234	}	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	/*****************************************************************************/
235		510
236	static void *	511	static void *
237	aio_proc (void *thr_arg)	512	aio_proc (void *thr_arg)
238	{	513	{
239	aio_req req;	514	aio_req req;
…		…
267		542
268	switch (type)	543	switch (type)
269	{	544	{
270	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;
271	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;
272	#if SYS_readahead	547
273	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;
274	#else	549	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
275	case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
276	#endif
277		550
278	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	551	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
279	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	552	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
280	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	553	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
281		554
282	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;
283	case REQ_CLOSE: req->result = close (req->fd); break;	556	case REQ_CLOSE: req->result = close (req->fd); break;
284	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;
285		560
		561	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
286	case REQ_FSYNC: req->result = fsync (req->fd); break;	562	case REQ_FSYNC: req->result = fsync (req->fd); break;
287	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
288		563
289	case REQ_QUIT:	564	case REQ_QUIT:
290	break;	565	break;
291		566
292	default:	567	default:
…		…
318	while (type != REQ_QUIT);	593	while (type != REQ_QUIT);
319		594
320	return 0;	595	return 0;
321	}	596	}
322		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
323	MODULE = IO::AIO PACKAGE = IO::AIO	610	MODULE = IO::AIO PACKAGE = IO::AIO
324		611
325	PROTOTYPES: ENABLE	612	PROTOTYPES: ENABLE
326		613
327	BOOT:	614	BOOT:
328	{	615	{
329	if (pipe (respipe))	616	create_pipe ();
330	croak ("unable to initialize result pipe");	617	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
331
332	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
333	croak ("cannot set result pipe to nonblocking mode");
334
335	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
336	croak ("cannot set result pipe to nonblocking mode");
337	}	618	}
338		619
339	void	620	void
340	min_parallel(nthreads)	621	min_parallel(nthreads)
341	int nthreads	622	int nthreads
342	PROTOTYPE: $	623	PROTOTYPE: $
343	CODE:
344	while (nthreads > started)
345	start_thread ();
346		624
347	void	625	void
348	max_parallel(nthreads)	626	max_parallel(nthreads)
349	int nthreads	627	int nthreads
350	PROTOTYPE: $	628	PROTOTYPE: $
351	CODE:
352	{
353	int cur = started;
354	while (cur > nthreads)
355	{
356	end_thread ();
357	cur--;
358	}
359
360	while (started > nthreads)
361	{
362	poll_wait ();
363	poll_cb ();
364	}
365	}
366		629
367	int	630	int
368	max_outstanding(nreqs)	631	max_outstanding(nreqs)
369	int nreqs	632	int nreqs
370	PROTOTYPE: $	633	PROTOTYPE: $
…		…
379	int mode	642	int mode
380	SV * callback	643	SV * callback
381	PROTOTYPE: $$$;$	644	PROTOTYPE: $$$;$
382	CODE:	645	CODE:
383	{	646	{
384	aio_req req;	647	dREQ;
385
386	Newz (0, req, 1, aio_cb);
387
388	if (!req)
389	croak ("out of memory during aio_req allocation");
390		648
391	req->type = REQ_OPEN;	649	req->type = REQ_OPEN;
392	req->data = newSVsv (pathname);	650	req->data = newSVsv (pathname);
393	req->dataptr = SvPV_nolen (req->data);	651	req->dataptr = SvPVbyte_nolen (req->data);
394	req->fd = flags;	652	req->fd = flags;
395	req->mode = mode;	653	req->mode = mode;
396	req->callback = SvREFCNT_inc (callback);
397		654
398	send_req (req);	655	send_req (req);
399	}	656	}
400		657
401	void	658	void
…		…
407	aio_close = REQ_CLOSE	664	aio_close = REQ_CLOSE
408	aio_fsync = REQ_FSYNC	665	aio_fsync = REQ_FSYNC
409	aio_fdatasync = REQ_FDATASYNC	666	aio_fdatasync = REQ_FDATASYNC
410	CODE:	667	CODE:
411	{	668	{
412	aio_req req;	669	dREQ;
413
414	Newz (0, req, 1, aio_cb);
415
416	if (!req)
417	croak ("out of memory during aio_req allocation");
418		670
419	req->type = ix;	671	req->type = ix;
420	req->fh = newSVsv (fh);	672	req->fh = newSVsv (fh);
421	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	673	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
422	req->callback = SvREFCNT_inc (callback);
423		674
424	send_req (req);	675	send_req (req);
425	}	676	}
426		677
427	void	678	void
428	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	679	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
429	SV * fh	680	SV * fh
430	UV offset	681	UV offset
431	IV length	682	UV length
432	SV * data	683	SV * data
433	IV dataoffset	684	UV dataoffset
434	SV * callback	685	SV * callback
435	ALIAS:	686	ALIAS:
436	aio_read = REQ_READ	687	aio_read = REQ_READ
437	aio_write = REQ_WRITE	688	aio_write = REQ_WRITE
438	PROTOTYPE: $$$$$;$	689	PROTOTYPE: $$$$$;$
439	CODE:	690	CODE:
440	{	691	{
441	aio_req req;	692	aio_req req;
442	STRLEN svlen;	693	STRLEN svlen;
443	char *svptr = SvPV (data, svlen);	694	char *svptr = SvPVbyte (data, svlen);
444		695
445	SvUPGRADE (data, SVt_PV);	696	SvUPGRADE (data, SVt_PV);
446	SvPOK_on (data);	697	SvPOK_on (data);
447		698
448	if (dataoffset < 0)	699	if (dataoffset < 0)
…		…
464	}	715	}
465		716
466	if (length < 0)	717	if (length < 0)
467	croak ("length must not be negative");	718	croak ("length must not be negative");
468		719
469	Newz (0, req, 1, aio_cb);	720	{
		721	dREQ;
470		722
471	if (!req)
472	croak ("out of memory during aio_req allocation");
473
474	req->type = ix;	723	req->type = ix;
475	req->fh = newSVsv (fh);	724	req->fh = newSVsv (fh);
476	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	725	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
477	: IoOFP (sv_2io (fh)));	726	: IoOFP (sv_2io (fh)));
478	req->offset = offset;	727	req->offset = offset;
		728	req->length = length;
		729	req->data = SvREFCNT_inc (data);
		730	req->dataptr = (char *)svptr + dataoffset;
		731
		732	if (!SvREADONLY (data))
		733	{
		734	SvREADONLY_on (data);
		735	req->data2ptr = (void *)data;
		736	}
		737
		738	send_req (req);
		739	}
		740	}
		741
		742	void
		743	aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
		744	SV * out_fh
		745	SV * in_fh
		746	UV in_offset
		747	UV length
		748	SV * callback
		749	PROTOTYPE: $$$$;$
		750	CODE:
		751	{
		752	dREQ;
		753
		754	req->type = REQ_SENDFILE;
		755	req->fh = newSVsv (out_fh);
		756	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
		757	req->fh2 = newSVsv (in_fh);
		758	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
		759	req->offset = in_offset;
479	req->length = length;	760	req->length = length;
480	req->data = SvREFCNT_inc (data);
481	req->dataptr = (char *)svptr + dataoffset;
482	req->callback = SvREFCNT_inc (callback);
483		761
484	send_req (req);	762	send_req (req);
485	}	763	}
486		764
487	void	765	void
…		…
491	IV length	769	IV length
492	SV * callback	770	SV * callback
493	PROTOTYPE: $$$;$	771	PROTOTYPE: $$$;$
494	CODE:	772	CODE:
495	{	773	{
496	aio_req req;	774	dREQ;
497
498	if (length < 0)
499	croak ("length must not be negative");
500
501	Newz (0, req, 1, aio_cb);
502
503	if (!req)
504	croak ("out of memory during aio_req allocation");
505		775
506	req->type = REQ_READAHEAD;	776	req->type = REQ_READAHEAD;
507	req->fh = newSVsv (fh);	777	req->fh = newSVsv (fh);
508	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	778	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
509	req->offset = offset;	779	req->offset = offset;
510	req->length = length;	780	req->length = length;
511	req->callback = SvREFCNT_inc (callback);
512		781
513	send_req (req);	782	send_req (req);
514	}	783	}
515		784
516	void	785	void
…		…
520	ALIAS:	789	ALIAS:
521	aio_stat = REQ_STAT	790	aio_stat = REQ_STAT
522	aio_lstat = REQ_LSTAT	791	aio_lstat = REQ_LSTAT
523	CODE:	792	CODE:
524	{	793	{
525	aio_req req;	794	dREQ;
526
527	Newz (0, req, 1, aio_cb);
528
529	if (!req)
530	croak ("out of memory during aio_req allocation");
531		795
532	New (0, req->statdata, 1, Stat_t);	796	New (0, req->statdata, 1, Stat_t);
533
534	if (!req->statdata)	797	if (!req->statdata)
		798	{
		799	free_req (req);
535	croak ("out of memory during aio_req->statdata allocation");	800	croak ("out of memory during aio_req->statdata allocation");
		801	}
536		802
537	if (SvPOK (fh_or_path))	803	if (SvPOK (fh_or_path))
538	{	804	{
539	req->type = ix;	805	req->type = ix;
540	req->data = newSVsv (fh_or_path);	806	req->data = newSVsv (fh_or_path);
541	req->dataptr = SvPV_nolen (req->data);	807	req->dataptr = SvPVbyte_nolen (req->data);
542	}	808	}
543	else	809	else
544	{	810	{
545	req->type = REQ_FSTAT;	811	req->type = REQ_FSTAT;
546	req->fh = newSVsv (fh_or_path);	812	req->fh = newSVsv (fh_or_path);
547	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	813	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
548	}	814	}
549		815
550	req->callback = SvREFCNT_inc (callback);
551
552	send_req (req);	816	send_req (req);
553	}	817	}
554		818
555	void	819	void
556	aio_unlink(pathname,callback=&PL_sv_undef)	820	aio_unlink(pathname,callback=&PL_sv_undef)
557	SV * pathname	821	SV * pathname
558	SV * callback	822	SV * callback
		823	ALIAS:
		824	aio_unlink = REQ_UNLINK
		825	aio_rmdir = REQ_RMDIR
559	CODE:	826	CODE:
560	{	827	{
561	aio_req req;	828	dREQ;
562		829
563	Newz (0, req, 1, aio_cb);	830	req->type = ix;
		831	req->data = newSVsv (pathname);
		832	req->dataptr = SvPVbyte_nolen (req->data);
564		833
565	if (!req)	834	send_req (req);
566	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;
567		845
568	req->type = REQ_UNLINK;	846	req->type = REQ_SYMLINK;
		847	req->fh = newSVsv (oldpath);
		848	req->data2ptr = SvPVbyte_nolen (req->fh);
569	req->data = newSVsv (pathname);	849	req->data = newSVsv (newpath);
570	req->dataptr = SvPV_nolen (req->data);	850	req->dataptr = SvPVbyte_nolen (req->data);
571	req->callback = SvREFCNT_inc (callback);
572		851
573	send_req (req);	852	send_req (req);
574	}	853	}
575		854
576	void	855	void

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing IO-AIO/AIO.xs (file contents): Revision 1.15 by root, Sat Jul 23 18:19:56 2005 UTC vs. Revision 1.34 by root, Tue Aug 23 00:03:14 2005 UTC

Diff Legend

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.15 by root, Sat Jul 23 18:19:56 2005 UTC vs.
Revision 1.34 by root, Tue Aug 23 00:03:14 2005 UTC