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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.19 by root, Sun Jul 31 19:04:45 2005 UTC vs.
Revision 1.35 by root, Tue Aug 23 01:16:50 2005 UTC

…		…
1	#ifndef _REENTRANT
2	# define _REENTRANT 1	1	#define _REENTRANT 1
3	#endif
4	#include <errno.h>	2	#include <errno.h>
5		3
6	#include "EXTERN.h"	4	#include "EXTERN.h"
7	#include "perl.h"	5	#include "perl.h"
8	#include "XSUB.h"	6	#include "XSUB.h"
9		7
10	#include "autoconf/config.h"	8	#include "autoconf/config.h"
		9
		10	#include <pthread.h>
11		11
12	#include <sys/types.h>	12	#include <sys/types.h>
13	#include <sys/stat.h>	13	#include <sys/stat.h>
14		14
15	#include <unistd.h>	15	#include <unistd.h>
16	#include <fcntl.h>	16	#include <fcntl.h>
17	#include <signal.h>	17	#include <signal.h>
18	#include <sched.h>	18	#include <sched.h>
19		19
20	#include <pthread.h>	20	#if HAVE_SENDFILE
21		21	# if __linux
22	typedef void InputStream; / hack, but 5.6.1 is simply toooo old ;) */	22	# include <sys/sendfile.h>
23	typedef void OutputStream; / hack, but 5.6.1 is simply toooo old ;) */	23	# elif __freebsd
24	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
25		34
26	#if __ia64	35	#if __ia64
27	# define STACKSIZE 65536	36	# define STACKSIZE 65536
28	#else	37	#else
29	# define STACKSIZE 4096	38	# define STACKSIZE 4096
31		40
32	enum {	41	enum {
33	REQ_QUIT,	42	REQ_QUIT,
34	REQ_OPEN, REQ_CLOSE,	43	REQ_OPEN, REQ_CLOSE,
35	REQ_READ, REQ_WRITE, REQ_READAHEAD,	44	REQ_READ, REQ_WRITE, REQ_READAHEAD,
		45	REQ_SENDFILE,
36	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,	46	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
37	REQ_FSYNC, REQ_FDATASYNC,	47	REQ_FSYNC, REQ_FDATASYNC,
		48	REQ_UNLINK, REQ_RMDIR,
		49	REQ_SYMLINK,
38	};	50	};
39		51
40	typedef struct aio_cb {	52	typedef struct aio_cb {
41	struct aio_cb *volatile next;	53	struct aio_cb *volatile next;
42		54
43	int type;	55	int type;
44		56
45	int fd;	57	int fd, fd2;
46	off_t offset;	58	off_t offset;
47	size_t length;	59	size_t length;
48	ssize_t result;	60	ssize_t result;
49	mode_t mode; /* open */	61	mode_t mode; /* open */
50	int errorno;	62	int errorno;
51	SV data, callback, *fh;	63	SV data, callback;
52	void *dataptr;	64	SV fh, fh2;
		65	void dataptr, data2ptr;
53	STRLEN dataoffset;	66	STRLEN dataoffset;
54		67
55	Stat_t *statdata;	68	Stat_t *statdata;
56	} aio_cb;	69	} aio_cb;
57		70
58	typedef aio_cb *aio_req;	71	typedef aio_cb *aio_req;
59		72
60	static int started;	73	static int started, wanted;
61	static volatile int nreqs;	74	static volatile int nreqs;
62	static int max_outstanding = 1<<30;	75	static int max_outstanding = 1<<30;
63	static int respipe [2];	76	static int respipe [2];
64		77
65	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	78	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
66	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	79	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
67	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	80	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
68		81
69	static volatile aio_req reqs, reqe; /* queue start, queue end */	82	static volatile aio_req reqs, reqe; /* queue start, queue end */
70	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	}
71		104
72	static void	105	static void
73	poll_wait ()	106	poll_wait ()
74	{	107	{
75	if (nreqs && !ress)	108	if (nreqs && !ress)
…		…
85	static int	118	static int
86	poll_cb ()	119	poll_cb ()
87	{	120	{
88	dSP;	121	dSP;
89	int count = 0;	122	int count = 0;
		123	int do_croak = 0;
90	aio_req req, prv;	124	aio_req req;
91		125
92	pthread_mutex_lock (&reslock);	126	for (;;)
93
94	{
95	/* read any signals sent by the worker threads */
96	char buf [32];
97	while (read (respipe [0], buf, 32) > 0)
98	;
99	}
100
101	req = ress;
102	ress = rese = 0;
103
104	pthread_mutex_unlock (&reslock);
105
106	while (req)
107	{	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
108	nreqs--;	151	nreqs--;
109		152
110	if (req->type == REQ_QUIT)	153	if (req->type == REQ_QUIT)
111	started--;	154	started--;
112	else	155	else
113	{	156	{
114	int errorno = errno;	157	int errorno = errno;
115	errno = req->errorno;	158	errno = req->errorno;
116		159
117	if (req->type == REQ_READ)	160	if (req->type == REQ_READ)
118	SvCUR_set (req->data, req->dataoffset	161	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
119	+ req->result > 0 ? req->result : 0);
120		162
		163	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
		164	SvREADONLY_off (req->data);
		165
121	if (req->data)	166	if (req->statdata)
122	SvREFCNT_dec (req->data);
123
124	if (req->fh)
125	SvREFCNT_dec (req->fh);
126
127	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)
128	{	167	{
129	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	168	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
130	PL_laststatval = req->result;	169	PL_laststatval = req->result;
131	PL_statcache = *(req->statdata);	170	PL_statcache = *(req->statdata);
132
133	Safefree (req->statdata);
134	}	171	}
135		172
136	ENTER;	173	ENTER;
137	PUSHMARK (SP);	174	PUSHMARK (SP);
138	XPUSHs (sv_2mortal (newSViv (req->result)));	175	XPUSHs (sv_2mortal (newSViv (req->result)));
…		…
155	if (SvOK (req->callback))	192	if (SvOK (req->callback))
156	{	193	{
157	PUTBACK;	194	PUTBACK;
158	call_sv (req->callback, G_VOID \| G_EVAL);	195	call_sv (req->callback, G_VOID \| G_EVAL);
159	SPAGAIN;	196	SPAGAIN;
		197
		198	if (SvTRUE (ERRSV))
		199	{
		200	free_req (req);
		201	croak (0);
		202	}
160	}	203	}
161		204
162	LEAVE;	205	LEAVE;
163
164	if (req->callback)
165	SvREFCNT_dec (req->callback);
166		206
167	errno = errorno;	207	errno = errorno;
168	count++;	208	count++;
169	}	209	}
170		210
171	prv = req;	211	free_req (req);
172	req = req->next;
173	Safefree (prv);
174
175	/* TODO: croak on errors? */
176	}	212	}
177		213
178	return count;	214	return count;
179	}	215	}
180		216
…		…
201	}	237	}
202		238
203	static void	239	static void
204	send_req (aio_req req)	240	send_req (aio_req req)
205	{	241	{
		242	while (started < wanted && nreqs >= started)
		243	start_thread ();
		244
206	nreqs++;	245	nreqs++;
207		246
208	pthread_mutex_lock (&reqlock);	247	pthread_mutex_lock (&reqlock);
209		248
210	req->next = 0;	249	req->next = 0;
…		…
218	reqe = reqs = req;	257	reqe = reqs = req;
219		258
220	pthread_cond_signal (&reqwait);	259	pthread_cond_signal (&reqwait);
221	pthread_mutex_unlock (&reqlock);	260	pthread_mutex_unlock (&reqlock);
222		261
223	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)
224	{	304	{
225	poll_wait ();	305	poll_wait ();
226	poll_cb ();	306	poll_cb ();
227	}	307	}
228	}	308	}
229		309
230	static void	310	static void create_pipe ()
231	end_thread (void)
232	{	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	{
233	aio_req req;	336	aio_req prv;
234	New (0, req, 1, aio_cb);
235	req->type = REQ_QUIT;
236		337
237	send_req (req);	338	started = 0;
238	}
239		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	/*****************************************************************************/
240	/* work around various missing functions */	370	/* work around various missing functions */
241		371
242	#if !HAVE_PREADWRITE	372	#if !HAVE_PREADWRITE
243	# define pread aio_pread	373	# define pread aio_pread
244	# define pwrite aio_pwrite	374	# define pwrite aio_pwrite
…		…
254	pread (int fd, void *buf, size_t count, off_t offset)	384	pread (int fd, void *buf, size_t count, off_t offset)
255	{	385	{
256	ssize_t res;	386	ssize_t res;
257	off_t ooffset;	387	off_t ooffset;
258		388
259	pthread_mutex_lock (&iolock);	389	LOCK_FD (fd);
		390	pthread_mutex_lock (&iolock); /* replace by LOCK_FD and private buffer */
260	ooffset = lseek (fd, 0, SEEK_CUR);	391	ooffset = lseek (fd, 0, SEEK_CUR);
261	lseek (fd, offset, SEEK_SET);	392	lseek (fd, offset, SEEK_SET);
262	res = read (fd, buf, count);	393	res = read (fd, buf, count);
263	lseek (fd, ooffset, SEEK_SET);	394	lseek (fd, ooffset, SEEK_SET);
264	pthread_mutex_unlock (&iolock);	395	pthread_mutex_unlock (&iolock);
		396	UNLOCK_FD (d);
265		397
266	return res;	398	return res;
267	}	399	}
268		400
269	static ssize_t	401	static ssize_t
270	pwrite (int fd, void *buf, size_t count, off_t offset)	402	pwrite (int fd, void *buf, size_t count, off_t offset)
271	{	403	{
272	ssize_t res;	404	ssize_t res;
273	off_t ooffset;	405	off_t ooffset;
274		406
275	pthread_mutex_lock (&iolock);	407	LOCK_FD (fd);
		408	pthread_mutex_lock (&iolock); /* replace by LOCK_FD and private buffer */
276	ooffset = lseek (fd, 0, SEEK_CUR);	409	ooffset = lseek (fd, 0, SEEK_CUR);
277	lseek (fd, offset, SEEK_SET);	410	lseek (fd, offset, SEEK_SET);
278	res = write (fd, buf, count);	411	res = write (fd, buf, count);
279	lseek (fd, offset, SEEK_SET);	412	lseek (fd, offset, SEEK_SET);
280	pthread_mutex_unlock (&iolock);	413	pthread_mutex_unlock (&iolock);
		414	UNLOCK_FD (d);
281		415
282	return res;	416	return res;
283	}	417	}
284	#endif	418	#endif
285		419
…		…
305	}	439	}
306		440
307	errno = 0;	441	errno = 0;
308	}	442	}
309	#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	/*****************************************************************************/
310		548
311	static void *	549	static void *
312	aio_proc (void *thr_arg)	550	aio_proc (void *thr_arg)
313	{	551	{
314	aio_req req;	552	aio_req req;
…		…
344	{	582	{
345	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;
346	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;
347		585
348	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;
349		588
350	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	589	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
351	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	590	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
352	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	591	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
353		592
354	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;
355	case REQ_CLOSE: req->result = close (req->fd); break;	594	case REQ_CLOSE: req->result = close (req->fd); break;
356	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;
357		598
358	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	599	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
359	case REQ_FSYNC: req->result = fsync (req->fd); break;	600	case REQ_FSYNC: req->result = fsync (req->fd); break;
360		601
361	case REQ_QUIT:	602	case REQ_QUIT:
…		…
390	while (type != REQ_QUIT);	631	while (type != REQ_QUIT);
391		632
392	return 0;	633	return 0;
393	}	634	}
394		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
395	MODULE = IO::AIO PACKAGE = IO::AIO	648	MODULE = IO::AIO PACKAGE = IO::AIO
396		649
397	PROTOTYPES: ENABLE	650	PROTOTYPES: ENABLE
398		651
399	BOOT:	652	BOOT:
400	{	653	{
401	if (pipe (respipe))	654	create_pipe ();
402	croak ("unable to initialize result pipe");	655	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
403
404	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
405	croak ("cannot set result pipe to nonblocking mode");
406
407	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
408	croak ("cannot set result pipe to nonblocking mode");
409	}	656	}
410		657
411	void	658	void
412	min_parallel(nthreads)	659	min_parallel(nthreads)
413	int nthreads	660	int nthreads
414	PROTOTYPE: $	661	PROTOTYPE: $
415	CODE:
416	while (nthreads > started)
417	start_thread ();
418		662
419	void	663	void
420	max_parallel(nthreads)	664	max_parallel(nthreads)
421	int nthreads	665	int nthreads
422	PROTOTYPE: $	666	PROTOTYPE: $
423	CODE:
424	{
425	int cur = started;
426	while (cur > nthreads)
427	{
428	end_thread ();
429	cur--;
430	}
431
432	while (started > nthreads)
433	{
434	poll_wait ();
435	poll_cb ();
436	}
437	}
438		667
439	int	668	int
440	max_outstanding(nreqs)	669	max_outstanding(nreqs)
441	int nreqs	670	int nreqs
442	PROTOTYPE: $	671	PROTOTYPE: $
…		…
451	int mode	680	int mode
452	SV * callback	681	SV * callback
453	PROTOTYPE: $$$;$	682	PROTOTYPE: $$$;$
454	CODE:	683	CODE:
455	{	684	{
456	aio_req req;	685	dREQ;
457
458	Newz (0, req, 1, aio_cb);
459
460	if (!req)
461	croak ("out of memory during aio_req allocation");
462		686
463	req->type = REQ_OPEN;	687	req->type = REQ_OPEN;
464	req->data = newSVsv (pathname);	688	req->data = newSVsv (pathname);
465	req->dataptr = SvPV_nolen (req->data);	689	req->dataptr = SvPVbyte_nolen (req->data);
466	req->fd = flags;	690	req->fd = flags;
467	req->mode = mode;	691	req->mode = mode;
468	req->callback = SvREFCNT_inc (callback);
469		692
470	send_req (req);	693	send_req (req);
471	}	694	}
472		695
473	void	696	void
…		…
479	aio_close = REQ_CLOSE	702	aio_close = REQ_CLOSE
480	aio_fsync = REQ_FSYNC	703	aio_fsync = REQ_FSYNC
481	aio_fdatasync = REQ_FDATASYNC	704	aio_fdatasync = REQ_FDATASYNC
482	CODE:	705	CODE:
483	{	706	{
484	aio_req req;	707	dREQ;
485
486	Newz (0, req, 1, aio_cb);
487
488	if (!req)
489	croak ("out of memory during aio_req allocation");
490		708
491	req->type = ix;	709	req->type = ix;
492	req->fh = newSVsv (fh);	710	req->fh = newSVsv (fh);
493	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	711	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
494	req->callback = SvREFCNT_inc (callback);
495		712
496	send_req (req);	713	send_req (req);
497	}	714	}
498		715
499	void	716	void
500	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	717	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
501	SV * fh	718	SV * fh
502	UV offset	719	UV offset
503	IV length	720	UV length
504	SV * data	721	SV * data
505	IV dataoffset	722	UV dataoffset
506	SV * callback	723	SV * callback
507	ALIAS:	724	ALIAS:
508	aio_read = REQ_READ	725	aio_read = REQ_READ
509	aio_write = REQ_WRITE	726	aio_write = REQ_WRITE
510	PROTOTYPE: $$$$$;$	727	PROTOTYPE: $$$$$;$
511	CODE:	728	CODE:
512	{	729	{
513	aio_req req;	730	aio_req req;
514	STRLEN svlen;	731	STRLEN svlen;
515	char *svptr = SvPV (data, svlen);	732	char *svptr = SvPVbyte (data, svlen);
516		733
517	SvUPGRADE (data, SVt_PV);	734	SvUPGRADE (data, SVt_PV);
518	SvPOK_on (data);	735	SvPOK_on (data);
519		736
520	if (dataoffset < 0)	737	if (dataoffset < 0)
…		…
536	}	753	}
537		754
538	if (length < 0)	755	if (length < 0)
539	croak ("length must not be negative");	756	croak ("length must not be negative");
540		757
541	Newz (0, req, 1, aio_cb);	758	{
		759	dREQ;
542		760
543	if (!req)
544	croak ("out of memory during aio_req allocation");
545
546	req->type = ix;	761	req->type = ix;
547	req->fh = newSVsv (fh);	762	req->fh = newSVsv (fh);
548	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	763	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
549	: IoOFP (sv_2io (fh)));	764	: IoOFP (sv_2io (fh)));
550	req->offset = offset;	765	req->offset = offset;
		766	req->length = length;
		767	req->data = SvREFCNT_inc (data);
		768	req->dataptr = (char *)svptr + dataoffset;
		769
		770	if (!SvREADONLY (data))
		771	{
		772	SvREADONLY_on (data);
		773	req->data2ptr = (void *)data;
		774	}
		775
		776	send_req (req);
		777	}
		778	}
		779
		780	void
		781	aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
		782	SV * out_fh
		783	SV * in_fh
		784	UV in_offset
		785	UV length
		786	SV * callback
		787	PROTOTYPE: $$$$;$
		788	CODE:
		789	{
		790	dREQ;
		791
		792	req->type = REQ_SENDFILE;
		793	req->fh = newSVsv (out_fh);
		794	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
		795	req->fh2 = newSVsv (in_fh);
		796	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
		797	req->offset = in_offset;
551	req->length = length;	798	req->length = length;
552	req->data = SvREFCNT_inc (data);
553	req->dataptr = (char *)svptr + dataoffset;
554	req->callback = SvREFCNT_inc (callback);
555		799
556	send_req (req);	800	send_req (req);
557	}	801	}
558		802
559	void	803	void
…		…
563	IV length	807	IV length
564	SV * callback	808	SV * callback
565	PROTOTYPE: $$$;$	809	PROTOTYPE: $$$;$
566	CODE:	810	CODE:
567	{	811	{
568	aio_req req;	812	dREQ;
569
570	if (length < 0)
571	croak ("length must not be negative");
572
573	Newz (0, req, 1, aio_cb);
574
575	if (!req)
576	croak ("out of memory during aio_req allocation");
577		813
578	req->type = REQ_READAHEAD;	814	req->type = REQ_READAHEAD;
579	req->fh = newSVsv (fh);	815	req->fh = newSVsv (fh);
580	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	816	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
581	req->offset = offset;	817	req->offset = offset;
582	req->length = length;	818	req->length = length;
583	req->callback = SvREFCNT_inc (callback);
584		819
585	send_req (req);	820	send_req (req);
586	}	821	}
587		822
588	void	823	void
…		…
592	ALIAS:	827	ALIAS:
593	aio_stat = REQ_STAT	828	aio_stat = REQ_STAT
594	aio_lstat = REQ_LSTAT	829	aio_lstat = REQ_LSTAT
595	CODE:	830	CODE:
596	{	831	{
597	aio_req req;	832	dREQ;
598
599	Newz (0, req, 1, aio_cb);
600
601	if (!req)
602	croak ("out of memory during aio_req allocation");
603		833
604	New (0, req->statdata, 1, Stat_t);	834	New (0, req->statdata, 1, Stat_t);
605
606	if (!req->statdata)	835	if (!req->statdata)
		836	{
		837	free_req (req);
607	croak ("out of memory during aio_req->statdata allocation");	838	croak ("out of memory during aio_req->statdata allocation");
		839	}
608		840
609	if (SvPOK (fh_or_path))	841	if (SvPOK (fh_or_path))
610	{	842	{
611	req->type = ix;	843	req->type = ix;
612	req->data = newSVsv (fh_or_path);	844	req->data = newSVsv (fh_or_path);
613	req->dataptr = SvPV_nolen (req->data);	845	req->dataptr = SvPVbyte_nolen (req->data);
614	}	846	}
615	else	847	else
616	{	848	{
617	req->type = REQ_FSTAT;	849	req->type = REQ_FSTAT;
618	req->fh = newSVsv (fh_or_path);	850	req->fh = newSVsv (fh_or_path);
619	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	851	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
620	}	852	}
621		853
622	req->callback = SvREFCNT_inc (callback);
623
624	send_req (req);	854	send_req (req);
625	}	855	}
626		856
627	void	857	void
628	aio_unlink(pathname,callback=&PL_sv_undef)	858	aio_unlink(pathname,callback=&PL_sv_undef)
629	SV * pathname	859	SV * pathname
630	SV * callback	860	SV * callback
		861	ALIAS:
		862	aio_unlink = REQ_UNLINK
		863	aio_rmdir = REQ_RMDIR
631	CODE:	864	CODE:
632	{	865	{
633	aio_req req;	866	dREQ;
634		867
635	Newz (0, req, 1, aio_cb);	868	req->type = ix;
		869	req->data = newSVsv (pathname);
		870	req->dataptr = SvPVbyte_nolen (req->data);
636		871
637	if (!req)	872	send_req (req);
638	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;
639		883
640	req->type = REQ_UNLINK;	884	req->type = REQ_SYMLINK;
		885	req->fh = newSVsv (oldpath);
		886	req->data2ptr = SvPVbyte_nolen (req->fh);
641	req->data = newSVsv (pathname);	887	req->data = newSVsv (newpath);
642	req->dataptr = SvPV_nolen (req->data);	888	req->dataptr = SvPVbyte_nolen (req->data);
643	req->callback = SvREFCNT_inc (callback);
644		889
645	send_req (req);	890	send_req (req);
646	}	891	}
647		892
648	void	893	void

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.19 by root, Sun Jul 31 19:04:45 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 1.19 by root, Sun Jul 31 19:04:45 2005 UTC vs.
Revision 1.35 by root, Tue Aug 23 01:16:50 2005 UTC