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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.17 by root, Sun Jul 31 18:45:48 2005 UTC vs.
Revision 1.35 by root, Tue Aug 23 01:16:50 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"
4		7
5	#include "autoconf/config.h"	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>
14		19
15	#include <pthread.h>	20	#if HAVE_SENDFILE
16		21	# if __linux
17	typedef void InputStream; / hack, but 5.6.1 is simply toooo old ;) */	22	# include <sys/sendfile.h>
18	typedef void OutputStream; / hack, but 5.6.1 is simply toooo old ;) */	23	# elif __freebsd
19	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
20		34
21	#if __ia64	35	#if __ia64
22	# define STACKSIZE 65536	36	# define STACKSIZE 65536
23	#else	37	#else
24	# define STACKSIZE 4096	38	# define STACKSIZE 4096
26		40
27	enum {	41	enum {
28	REQ_QUIT,	42	REQ_QUIT,
29	REQ_OPEN, REQ_CLOSE,	43	REQ_OPEN, REQ_CLOSE,
30	REQ_READ, REQ_WRITE, REQ_READAHEAD,	44	REQ_READ, REQ_WRITE, REQ_READAHEAD,
		45	REQ_SENDFILE,
31	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,	46	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
32	REQ_FSYNC, REQ_FDATASYNC,	47	REQ_FSYNC, REQ_FDATASYNC,
		48	REQ_UNLINK, REQ_RMDIR,
		49	REQ_SYMLINK,
33	};	50	};
34		51
35	typedef struct aio_cb {	52	typedef struct aio_cb {
36	struct aio_cb *volatile next;	53	struct aio_cb *volatile next;
37		54
38	int type;	55	int type;
39		56
40	int fd;	57	int fd, fd2;
41	off_t offset;	58	off_t offset;
42	size_t length;	59	size_t length;
43	ssize_t result;	60	ssize_t result;
44	mode_t mode; /* open */	61	mode_t mode; /* open */
45	int errorno;	62	int errorno;
46	SV data, callback, *fh;	63	SV data, callback;
47	void *dataptr;	64	SV fh, fh2;
		65	void dataptr, data2ptr;
48	STRLEN dataoffset;	66	STRLEN dataoffset;
49		67
50	Stat_t *statdata;	68	Stat_t *statdata;
51	} aio_cb;	69	} aio_cb;
52		70
53	typedef aio_cb *aio_req;	71	typedef aio_cb *aio_req;
54		72
55	static int started;	73	static int started, wanted;
56	static volatile int nreqs;	74	static volatile int nreqs;
57	static int max_outstanding = 1<<30;	75	static int max_outstanding = 1<<30;
58	static int respipe [2];	76	static int respipe [2];
59		77
60	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	78	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
61	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	79	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
62	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	80	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
63		81
64	static volatile aio_req reqs, reqe; /* queue start, queue end */	82	static volatile aio_req reqs, reqe; /* queue start, queue end */
65	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	}
66		104
67	static void	105	static void
68	poll_wait ()	106	poll_wait ()
69	{	107	{
70	if (nreqs && !ress)	108	if (nreqs && !ress)
…		…
80	static int	118	static int
81	poll_cb ()	119	poll_cb ()
82	{	120	{
83	dSP;	121	dSP;
84	int count = 0;	122	int count = 0;
		123	int do_croak = 0;
85	aio_req req, prv;	124	aio_req req;
86		125
87	pthread_mutex_lock (&reslock);	126	for (;;)
88
89	{
90	/* read any signals sent by the worker threads */
91	char buf [32];
92	while (read (respipe [0], buf, 32) > 0)
93	;
94	}
95
96	req = ress;
97	ress = rese = 0;
98
99	pthread_mutex_unlock (&reslock);
100
101	while (req)
102	{	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
103	nreqs--;	151	nreqs--;
104		152
105	if (req->type == REQ_QUIT)	153	if (req->type == REQ_QUIT)
106	started--;	154	started--;
107	else	155	else
108	{	156	{
109	int errorno = errno;	157	int errorno = errno;
110	errno = req->errorno;	158	errno = req->errorno;
111		159
112	if (req->type == REQ_READ)	160	if (req->type == REQ_READ)
113	SvCUR_set (req->data, req->dataoffset	161	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
114	+ req->result > 0 ? req->result : 0);
115		162
		163	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
		164	SvREADONLY_off (req->data);
		165
116	if (req->data)	166	if (req->statdata)
117	SvREFCNT_dec (req->data);
118
119	if (req->fh)
120	SvREFCNT_dec (req->fh);
121
122	if (req->type == REQ_STAT \|\| req->type == REQ_LSTAT \|\| req->type == REQ_FSTAT)
123	{	167	{
124	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	168	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
125	PL_laststatval = req->result;	169	PL_laststatval = req->result;
126	PL_statcache = *(req->statdata);	170	PL_statcache = *(req->statdata);
127
128	Safefree (req->statdata);
129	}	171	}
130		172
131	ENTER;	173	ENTER;
132	PUSHMARK (SP);	174	PUSHMARK (SP);
133	XPUSHs (sv_2mortal (newSViv (req->result)));	175	XPUSHs (sv_2mortal (newSViv (req->result)));
…		…
150	if (SvOK (req->callback))	192	if (SvOK (req->callback))
151	{	193	{
152	PUTBACK;	194	PUTBACK;
153	call_sv (req->callback, G_VOID \| G_EVAL);	195	call_sv (req->callback, G_VOID \| G_EVAL);
154	SPAGAIN;	196	SPAGAIN;
		197
		198	if (SvTRUE (ERRSV))
		199	{
		200	free_req (req);
		201	croak (0);
		202	}
155	}	203	}
156		204
157	LEAVE;	205	LEAVE;
158
159	if (req->callback)
160	SvREFCNT_dec (req->callback);
161		206
162	errno = errorno;	207	errno = errorno;
163	count++;	208	count++;
164	}	209	}
165		210
166	prv = req;	211	free_req (req);
167	req = req->next;
168	Safefree (prv);
169
170	/* TODO: croak on errors? */
171	}	212	}
172		213
173	return count;	214	return count;
174	}	215	}
175		216
…		…
196	}	237	}
197		238
198	static void	239	static void
199	send_req (aio_req req)	240	send_req (aio_req req)
200	{	241	{
		242	while (started < wanted && nreqs >= started)
		243	start_thread ();
		244
201	nreqs++;	245	nreqs++;
202		246
203	pthread_mutex_lock (&reqlock);	247	pthread_mutex_lock (&reqlock);
204		248
205	req->next = 0;	249	req->next = 0;
…		…
213	reqe = reqs = req;	257	reqe = reqs = req;
214		258
215	pthread_cond_signal (&reqwait);	259	pthread_cond_signal (&reqwait);
216	pthread_mutex_unlock (&reqlock);	260	pthread_mutex_unlock (&reqlock);
217		261
218	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)
219	{	304	{
220	poll_wait ();	305	poll_wait ();
221	poll_cb ();	306	poll_cb ();
222	}	307	}
223	}	308	}
224		309
225	static void	310	static void create_pipe ()
226	end_thread (void)
227	{	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	{
228	aio_req req;	336	aio_req prv;
229	New (0, req, 1, aio_cb);
230	req->type = REQ_QUIT;
231		337
232	send_req (req);	338	started = 0;
233	}
234		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	/*****************************************************************************/
235	/* work around various missing functions */	370	/* work around various missing functions */
236		371
237	#if !HAVE_PREADWRITE	372	#if !HAVE_PREADWRITE
238	# define pread aio_pread	373	# define pread aio_pread
239	# define pwrite aio_pwrite	374	# define pwrite aio_pwrite
…		…
249	pread (int fd, void *buf, size_t count, off_t offset)	384	pread (int fd, void *buf, size_t count, off_t offset)
250	{	385	{
251	ssize_t res;	386	ssize_t res;
252	off_t ooffset;	387	off_t ooffset;
253		388
254	pthread_mutex_lock (&iolock);	389	LOCK_FD (fd);
		390	pthread_mutex_lock (&iolock); /* replace by LOCK_FD and private buffer */
255	ooffset = lseek (fd, 0, SEEK_CUR);	391	ooffset = lseek (fd, 0, SEEK_CUR);
256	lseek (fd, offset, SEEK_SET);	392	lseek (fd, offset, SEEK_SET);
257	res = read (fd, buf, count);	393	res = read (fd, buf, count);
258	lseek (fd, ooffset, SEEK_SET);	394	lseek (fd, ooffset, SEEK_SET);
259	pthread_mutex_unlock (&iolock);	395	pthread_mutex_unlock (&iolock);
		396	UNLOCK_FD (d);
260		397
261	return res;	398	return res;
262	}	399	}
263		400
264	static ssize_t	401	static ssize_t
265	pwrite (int fd, void *buf, size_t count, off_t offset)	402	pwrite (int fd, void *buf, size_t count, off_t offset)
266	{	403	{
267	ssize_t res;	404	ssize_t res;
268	off_t ooffset;	405	off_t ooffset;
269		406
270	pthread_mutex_lock (&iolock);	407	LOCK_FD (fd);
		408	pthread_mutex_lock (&iolock); /* replace by LOCK_FD and private buffer */
271	ooffset = lseek (fd, 0, SEEK_CUR);	409	ooffset = lseek (fd, 0, SEEK_CUR);
272	lseek (fd, offset, SEEK_SET);	410	lseek (fd, offset, SEEK_SET);
273	res = write (fd, buf, count);	411	res = write (fd, buf, count);
274	lseek (fd, offset, SEEK_SET);	412	lseek (fd, offset, SEEK_SET);
275	pthread_mutex_unlock (&iolock);	413	pthread_mutex_unlock (&iolock);
		414	UNLOCK_FD (d);
276		415
277	return res;	416	return res;
278	}	417	}
279	#endif	418	#endif
280		419
…		…
300	}	439	}
301		440
302	errno = 0;	441	errno = 0;
303	}	442	}
304	#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	/*****************************************************************************/
305		548
306	static void *	549	static void *
307	aio_proc (void *thr_arg)	550	aio_proc (void *thr_arg)
308	{	551	{
309	aio_req req;	552	aio_req req;
…		…
339	{	582	{
340	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;
341	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;
342		585
343	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;
344		588
345	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	589	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
346	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	590	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
347	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	591	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
348		592
349	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;
350	case REQ_CLOSE: req->result = close (req->fd); break;	594	case REQ_CLOSE: req->result = close (req->fd); break;
351	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;
352		598
353	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	599	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
354	case REQ_FSYNC: req->result = fsync (req->fd); break;	600	case REQ_FSYNC: req->result = fsync (req->fd); break;
355		601
356	case REQ_QUIT:	602	case REQ_QUIT:
…		…
385	while (type != REQ_QUIT);	631	while (type != REQ_QUIT);
386		632
387	return 0;	633	return 0;
388	}	634	}
389		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
390	MODULE = IO::AIO PACKAGE = IO::AIO	648	MODULE = IO::AIO PACKAGE = IO::AIO
391		649
392	PROTOTYPES: ENABLE	650	PROTOTYPES: ENABLE
393		651
394	BOOT:	652	BOOT:
395	{	653	{
396	if (pipe (respipe))	654	create_pipe ();
397	croak ("unable to initialize result pipe");	655	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
398
399	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
400	croak ("cannot set result pipe to nonblocking mode");
401
402	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
403	croak ("cannot set result pipe to nonblocking mode");
404	}	656	}
405		657
406	void	658	void
407	min_parallel(nthreads)	659	min_parallel(nthreads)
408	int nthreads	660	int nthreads
409	PROTOTYPE: $	661	PROTOTYPE: $
410	CODE:
411	while (nthreads > started)
412	start_thread ();
413		662
414	void	663	void
415	max_parallel(nthreads)	664	max_parallel(nthreads)
416	int nthreads	665	int nthreads
417	PROTOTYPE: $	666	PROTOTYPE: $
418	CODE:
419	{
420	int cur = started;
421	while (cur > nthreads)
422	{
423	end_thread ();
424	cur--;
425	}
426
427	while (started > nthreads)
428	{
429	poll_wait ();
430	poll_cb ();
431	}
432	}
433		667
434	int	668	int
435	max_outstanding(nreqs)	669	max_outstanding(nreqs)
436	int nreqs	670	int nreqs
437	PROTOTYPE: $	671	PROTOTYPE: $
…		…
446	int mode	680	int mode
447	SV * callback	681	SV * callback
448	PROTOTYPE: $$$;$	682	PROTOTYPE: $$$;$
449	CODE:	683	CODE:
450	{	684	{
451	aio_req req;	685	dREQ;
452
453	Newz (0, req, 1, aio_cb);
454
455	if (!req)
456	croak ("out of memory during aio_req allocation");
457		686
458	req->type = REQ_OPEN;	687	req->type = REQ_OPEN;
459	req->data = newSVsv (pathname);	688	req->data = newSVsv (pathname);
460	req->dataptr = SvPV_nolen (req->data);	689	req->dataptr = SvPVbyte_nolen (req->data);
461	req->fd = flags;	690	req->fd = flags;
462	req->mode = mode;	691	req->mode = mode;
463	req->callback = SvREFCNT_inc (callback);
464		692
465	send_req (req);	693	send_req (req);
466	}	694	}
467		695
468	void	696	void
…		…
474	aio_close = REQ_CLOSE	702	aio_close = REQ_CLOSE
475	aio_fsync = REQ_FSYNC	703	aio_fsync = REQ_FSYNC
476	aio_fdatasync = REQ_FDATASYNC	704	aio_fdatasync = REQ_FDATASYNC
477	CODE:	705	CODE:
478	{	706	{
479	aio_req req;	707	dREQ;
480
481	Newz (0, req, 1, aio_cb);
482
483	if (!req)
484	croak ("out of memory during aio_req allocation");
485		708
486	req->type = ix;	709	req->type = ix;
487	req->fh = newSVsv (fh);	710	req->fh = newSVsv (fh);
488	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	711	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
489	req->callback = SvREFCNT_inc (callback);
490		712
491	send_req (req);	713	send_req (req);
492	}	714	}
493		715
494	void	716	void
495	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	717	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
496	SV * fh	718	SV * fh
497	UV offset	719	UV offset
498	IV length	720	UV length
499	SV * data	721	SV * data
500	IV dataoffset	722	UV dataoffset
501	SV * callback	723	SV * callback
502	ALIAS:	724	ALIAS:
503	aio_read = REQ_READ	725	aio_read = REQ_READ
504	aio_write = REQ_WRITE	726	aio_write = REQ_WRITE
505	PROTOTYPE: $$$$$;$	727	PROTOTYPE: $$$$$;$
506	CODE:	728	CODE:
507	{	729	{
508	aio_req req;	730	aio_req req;
509	STRLEN svlen;	731	STRLEN svlen;
510	char *svptr = SvPV (data, svlen);	732	char *svptr = SvPVbyte (data, svlen);
511		733
512	SvUPGRADE (data, SVt_PV);	734	SvUPGRADE (data, SVt_PV);
513	SvPOK_on (data);	735	SvPOK_on (data);
514		736
515	if (dataoffset < 0)	737	if (dataoffset < 0)
…		…
531	}	753	}
532		754
533	if (length < 0)	755	if (length < 0)
534	croak ("length must not be negative");	756	croak ("length must not be negative");
535		757
536	Newz (0, req, 1, aio_cb);	758	{
		759	dREQ;
537		760
538	if (!req)
539	croak ("out of memory during aio_req allocation");
540
541	req->type = ix;	761	req->type = ix;
542	req->fh = newSVsv (fh);	762	req->fh = newSVsv (fh);
543	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	763	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
544	: IoOFP (sv_2io (fh)));	764	: IoOFP (sv_2io (fh)));
545	req->offset = offset;	765	req->offset = offset;
		766	req->length = length;
		767	req->data = SvREFCNT_inc (data);
		768	req->dataptr = (char *)svptr + dataoffset;
		769
		770	if (!SvREADONLY (data))
		771	{
		772	SvREADONLY_on (data);
		773	req->data2ptr = (void *)data;
		774	}
		775
		776	send_req (req);
		777	}
		778	}
		779
		780	void
		781	aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
		782	SV * out_fh
		783	SV * in_fh
		784	UV in_offset
		785	UV length
		786	SV * callback
		787	PROTOTYPE: $$$$;$
		788	CODE:
		789	{
		790	dREQ;
		791
		792	req->type = REQ_SENDFILE;
		793	req->fh = newSVsv (out_fh);
		794	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
		795	req->fh2 = newSVsv (in_fh);
		796	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
		797	req->offset = in_offset;
546	req->length = length;	798	req->length = length;
547	req->data = SvREFCNT_inc (data);
548	req->dataptr = (char *)svptr + dataoffset;
549	req->callback = SvREFCNT_inc (callback);
550		799
551	send_req (req);	800	send_req (req);
552	}	801	}
553		802
554	void	803	void
…		…
558	IV length	807	IV length
559	SV * callback	808	SV * callback
560	PROTOTYPE: $$$;$	809	PROTOTYPE: $$$;$
561	CODE:	810	CODE:
562	{	811	{
563	aio_req req;	812	dREQ;
564
565	if (length < 0)
566	croak ("length must not be negative");
567
568	Newz (0, req, 1, aio_cb);
569
570	if (!req)
571	croak ("out of memory during aio_req allocation");
572		813
573	req->type = REQ_READAHEAD;	814	req->type = REQ_READAHEAD;
574	req->fh = newSVsv (fh);	815	req->fh = newSVsv (fh);
575	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	816	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
576	req->offset = offset;	817	req->offset = offset;
577	req->length = length;	818	req->length = length;
578	req->callback = SvREFCNT_inc (callback);
579		819
580	send_req (req);	820	send_req (req);
581	}	821	}
582		822
583	void	823	void
…		…
587	ALIAS:	827	ALIAS:
588	aio_stat = REQ_STAT	828	aio_stat = REQ_STAT
589	aio_lstat = REQ_LSTAT	829	aio_lstat = REQ_LSTAT
590	CODE:	830	CODE:
591	{	831	{
592	aio_req req;	832	dREQ;
593
594	Newz (0, req, 1, aio_cb);
595
596	if (!req)
597	croak ("out of memory during aio_req allocation");
598		833
599	New (0, req->statdata, 1, Stat_t);	834	New (0, req->statdata, 1, Stat_t);
600
601	if (!req->statdata)	835	if (!req->statdata)
		836	{
		837	free_req (req);
602	croak ("out of memory during aio_req->statdata allocation");	838	croak ("out of memory during aio_req->statdata allocation");
		839	}
603		840
604	if (SvPOK (fh_or_path))	841	if (SvPOK (fh_or_path))
605	{	842	{
606	req->type = ix;	843	req->type = ix;
607	req->data = newSVsv (fh_or_path);	844	req->data = newSVsv (fh_or_path);
608	req->dataptr = SvPV_nolen (req->data);	845	req->dataptr = SvPVbyte_nolen (req->data);
609	}	846	}
610	else	847	else
611	{	848	{
612	req->type = REQ_FSTAT;	849	req->type = REQ_FSTAT;
613	req->fh = newSVsv (fh_or_path);	850	req->fh = newSVsv (fh_or_path);
614	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	851	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
615	}	852	}
616		853
617	req->callback = SvREFCNT_inc (callback);
618
619	send_req (req);	854	send_req (req);
620	}	855	}
621		856
622	void	857	void
623	aio_unlink(pathname,callback=&PL_sv_undef)	858	aio_unlink(pathname,callback=&PL_sv_undef)
624	SV * pathname	859	SV * pathname
625	SV * callback	860	SV * callback
		861	ALIAS:
		862	aio_unlink = REQ_UNLINK
		863	aio_rmdir = REQ_RMDIR
626	CODE:	864	CODE:
627	{	865	{
628	aio_req req;	866	dREQ;
629		867
630	Newz (0, req, 1, aio_cb);	868	req->type = ix;
		869	req->data = newSVsv (pathname);
		870	req->dataptr = SvPVbyte_nolen (req->data);
631		871
632	if (!req)	872	send_req (req);
633	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;
634		883
635	req->type = REQ_UNLINK;	884	req->type = REQ_SYMLINK;
		885	req->fh = newSVsv (oldpath);
		886	req->data2ptr = SvPVbyte_nolen (req->fh);
636	req->data = newSVsv (pathname);	887	req->data = newSVsv (newpath);
637	req->dataptr = SvPV_nolen (req->data);	888	req->dataptr = SvPVbyte_nolen (req->data);
638	req->callback = SvREFCNT_inc (callback);
639		889
640	send_req (req);	890	send_req (req);
641	}	891	}
642		892
643	void	893	void

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.17 by root, Sun Jul 31 18:45:48 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 1.17 by root, Sun Jul 31 18:45:48 2005 UTC vs.
Revision 1.35 by root, Tue Aug 23 01:16:50 2005 UTC