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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.16 by root, Sun Jul 31 18:20:07 2005 UTC vs.
Revision 1.33 by root, Mon Aug 22 23:21:57 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	# endif
		29	#endif
20		30
21	#if __ia64	31	#if __ia64
22	# define STACKSIZE 65536	32	# define STACKSIZE 65536
23	#else	33	#else
24	# define STACKSIZE 4096	34	# define STACKSIZE 4096
26		36
27	enum {	37	enum {
28	REQ_QUIT,	38	REQ_QUIT,
29	REQ_OPEN, REQ_CLOSE,	39	REQ_OPEN, REQ_CLOSE,
30	REQ_READ, REQ_WRITE, REQ_READAHEAD,	40	REQ_READ, REQ_WRITE, REQ_READAHEAD,
		41	REQ_SENDFILE,
31	REQ_STAT, REQ_LSTAT, REQ_FSTAT, REQ_UNLINK,	42	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
32	REQ_FSYNC, REQ_FDATASYNC,	43	REQ_FSYNC, REQ_FDATASYNC,
		44	REQ_UNLINK, REQ_RMDIR,
		45	REQ_SYMLINK,
33	};	46	};
34		47
35	typedef struct aio_cb {	48	typedef struct aio_cb {
36	struct aio_cb *volatile next;	49	struct aio_cb *volatile next;
37		50
38	int type;	51	int type;
39		52
40	int fd;	53	int fd, fd2;
41	off_t offset;	54	off_t offset;
42	size_t length;	55	size_t length;
43	ssize_t result;	56	ssize_t result;
44	mode_t mode; /* open */	57	mode_t mode; /* open */
45	int errorno;	58	int errorno;
46	SV data, callback, *fh;	59	SV data, callback;
47	void *dataptr;	60	SV fh, fh2;
		61	void dataptr, data2ptr;
48	STRLEN dataoffset;	62	STRLEN dataoffset;
49		63
50	Stat_t *statdata;	64	Stat_t *statdata;
51	} aio_cb;	65	} aio_cb;
52		66
53	typedef aio_cb *aio_req;	67	typedef aio_cb *aio_req;
54		68
55	static int started;	69	static int started, wanted;
56	static volatile int nreqs;	70	static volatile int nreqs;
57	static int max_outstanding = 1<<30;	71	static int max_outstanding = 1<<30;
58	static int respipe [2];	72	static int respipe [2];
59		73
60	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	74	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
61	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	75	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
62	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	76	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
63		77
64	static volatile aio_req reqs, reqe; /* queue start, queue end */	78	static volatile aio_req reqs, reqe; /* queue start, queue end */
65	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	}
66		100
67	static void	101	static void
68	poll_wait ()	102	poll_wait ()
69	{	103	{
70	if (nreqs && !ress)	104	if (nreqs && !ress)
…		…
80	static int	114	static int
81	poll_cb ()	115	poll_cb ()
82	{	116	{
83	dSP;	117	dSP;
84	int count = 0;	118	int count = 0;
		119	int do_croak = 0;
85	aio_req req, prv;	120	aio_req req;
86		121
87	pthread_mutex_lock (&reslock);	122	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	{	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
103	nreqs--;	147	nreqs--;
104		148
105	if (req->type == REQ_QUIT)	149	if (req->type == REQ_QUIT)
106	started--;	150	started--;
107	else	151	else
108	{	152	{
109	int errorno = errno;	153	int errorno = errno;
110	errno = req->errorno;	154	errno = req->errorno;
111		155
112	if (req->type == REQ_READ)	156	if (req->type == REQ_READ)
113	SvCUR_set (req->data, req->dataoffset	157	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
114	+ req->result > 0 ? req->result : 0);
115		158
		159	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
		160	SvREADONLY_off (req->data);
		161
116	if (req->data)	162	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	{	163	{
124	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	164	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
125	PL_laststatval = req->result;	165	PL_laststatval = req->result;
126	PL_statcache = *(req->statdata);	166	PL_statcache = *(req->statdata);
127
128	Safefree (req->statdata);
129	}	167	}
130		168
131	ENTER;	169	ENTER;
132	PUSHMARK (SP);	170	PUSHMARK (SP);
133	XPUSHs (sv_2mortal (newSViv (req->result)));	171	XPUSHs (sv_2mortal (newSViv (req->result)));
…		…
150	if (SvOK (req->callback))	188	if (SvOK (req->callback))
151	{	189	{
152	PUTBACK;	190	PUTBACK;
153	call_sv (req->callback, G_VOID \| G_EVAL);	191	call_sv (req->callback, G_VOID \| G_EVAL);
154	SPAGAIN;	192	SPAGAIN;
		193
		194	if (SvTRUE (ERRSV))
		195	{
		196	free_req (req);
		197	croak (0);
		198	}
155	}	199	}
156		200
157	LEAVE;	201	LEAVE;
158
159	if (req->callback)
160	SvREFCNT_dec (req->callback);
161		202
162	errno = errorno;	203	errno = errorno;
163	count++;	204	count++;
164	}	205	}
165		206
166	prv = req;	207	free_req (req);
167	req = req->next;
168	Safefree (prv);
169
170	/* TODO: croak on errors? */
171	}	208	}
172		209
173	return count;	210	return count;
174	}	211	}
175		212
…		…
196	}	233	}
197		234
198	static void	235	static void
199	send_req (aio_req req)	236	send_req (aio_req req)
200	{	237	{
		238	while (started < wanted && nreqs >= started)
		239	start_thread ();
		240
201	nreqs++;	241	nreqs++;
202		242
203	pthread_mutex_lock (&reqlock);	243	pthread_mutex_lock (&reqlock);
204		244
205	req->next = 0;	245	req->next = 0;
…		…
213	reqe = reqs = req;	253	reqe = reqs = req;
214		254
215	pthread_cond_signal (&reqwait);	255	pthread_cond_signal (&reqwait);
216	pthread_mutex_unlock (&reqlock);	256	pthread_mutex_unlock (&reqlock);
217		257
218	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)
219	{	300	{
220	poll_wait ();	301	poll_wait ();
221	poll_cb ();	302	poll_cb ();
222	}	303	}
223	}	304	}
224		305
225	static void	306	static void create_pipe ()
226	end_thread (void)
227	{	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	{
228	aio_req req;	332	aio_req prv;
229	New (0, req, 1, aio_cb);
230	req->type = REQ_QUIT;
231		333
232	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 ();
233	}	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	/* maybe on others, too, as usual, the manpage leaves you guessing */
		456	res = sbytes;
		457	}
		458
		459	#elif __hpux
		460	res = sendfile (ofd, ifd, offset, count, 0, 0);
		461
		462	#else
		463	res = -1;
		464	errno = ENOSYS;
		465	#endif
		466
		467	if (res < 0 && (errno == ENOSYS \|\| errno == EINVAL \|\| errno == ENOTSOCK))
		468	{
		469	/* emulate sendfile. this is a major pain in the ass */
		470	char *buf = malloc (4096);
		471	res = 0;
		472
		473	for (;;)
		474	{
		475	ssize_t cnt;
		476
		477	cnt = pread (ifd, buf, 4096, offset);
		478
		479	if (cnt <= 0)
		480	{
		481	if (cnt && !res) res = -1;
		482	break;
		483	}
		484
		485	cnt = write (ofd, buf, cnt);
		486
		487	if (cnt <= 0)
		488	{
		489	if (cnt && !res) res = -1;
		490	break;
		491	}
		492
		493	offset += cnt;
		494	res += cnt;
		495	}
		496
		497	{
		498	int errorno = errno;
		499	free (buf);
		500	errno = errorno;
		501	}
		502	}
		503
		504	return res;
		505	}
		506
		507	/*****************************************************************************/
234		508
235	static void *	509	static void *
236	aio_proc (void *thr_arg)	510	aio_proc (void *thr_arg)
237	{	511	{
238	aio_req req;	512	aio_req req;
…		…
264		538
265	type = req->type;	539	type = req->type;
266		540
267	switch (type)	541	switch (type)
268	{	542	{
269	#if HAVE_PREADWRITE
270	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	543	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;	544	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
272	#else
273	# error "pread/pwrite cannot be emulated, fix your os"
274	#endif
275		545
276	#if HAVE_READAHEAD
277	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	546	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
278	#else	547	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
279	// TODO: emulate
280	case REQ_READAHEAD: req->result = -1; errno = ENOSYS; break;
281	#endif
282		548
283	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	549	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
284	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	550	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
285	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	551	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
286		552
287	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	553	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
288	case REQ_CLOSE: req->result = close (req->fd); break;	554	case REQ_CLOSE: req->result = close (req->fd); break;
289	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	555	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
		556	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
		557	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
290		558
291	case REQ_FDATASYNC:	559	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
292	#if HAVE_FDATASYNC
293	req->result = fdatasync (req->fd); break;
294	#endif
295	case REQ_FSYNC: req->result = fsync (req->fd); break;	560	case REQ_FSYNC: req->result = fsync (req->fd); break;
296		561
297	case REQ_QUIT:	562	case REQ_QUIT:
298	break;	563	break;
299		564
…		…
326	while (type != REQ_QUIT);	591	while (type != REQ_QUIT);
327		592
328	return 0;	593	return 0;
329	}	594	}
330		595
		596	#define dREQ \
		597	aio_req req; \
		598	\
		599	if (SvOK (callback) && !SvROK (callback)) \
		600	croak ("clalback must be undef or of reference type"); \
		601	\
		602	Newz (0, req, 1, aio_cb); \
		603	if (!req) \
		604	croak ("out of memory during aio_req allocation"); \
		605	\
		606	req->callback = newSVsv (callback);
		607
331	MODULE = IO::AIO PACKAGE = IO::AIO	608	MODULE = IO::AIO PACKAGE = IO::AIO
332		609
333	PROTOTYPES: ENABLE	610	PROTOTYPES: ENABLE
334		611
335	BOOT:	612	BOOT:
336	{	613	{
337	if (pipe (respipe))	614	create_pipe ();
338	croak ("unable to initialize result pipe");	615	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
339
340	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
341	croak ("cannot set result pipe to nonblocking mode");
342
343	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
344	croak ("cannot set result pipe to nonblocking mode");
345	}	616	}
346		617
347	void	618	void
348	min_parallel(nthreads)	619	min_parallel(nthreads)
349	int nthreads	620	int nthreads
350	PROTOTYPE: $	621	PROTOTYPE: $
351	CODE:
352	while (nthreads > started)
353	start_thread ();
354		622
355	void	623	void
356	max_parallel(nthreads)	624	max_parallel(nthreads)
357	int nthreads	625	int nthreads
358	PROTOTYPE: $	626	PROTOTYPE: $
359	CODE:
360	{
361	int cur = started;
362	while (cur > nthreads)
363	{
364	end_thread ();
365	cur--;
366	}
367
368	while (started > nthreads)
369	{
370	poll_wait ();
371	poll_cb ();
372	}
373	}
374		627
375	int	628	int
376	max_outstanding(nreqs)	629	max_outstanding(nreqs)
377	int nreqs	630	int nreqs
378	PROTOTYPE: $	631	PROTOTYPE: $
…		…
387	int mode	640	int mode
388	SV * callback	641	SV * callback
389	PROTOTYPE: $$$;$	642	PROTOTYPE: $$$;$
390	CODE:	643	CODE:
391	{	644	{
392	aio_req req;	645	dREQ;
393
394	Newz (0, req, 1, aio_cb);
395
396	if (!req)
397	croak ("out of memory during aio_req allocation");
398		646
399	req->type = REQ_OPEN;	647	req->type = REQ_OPEN;
400	req->data = newSVsv (pathname);	648	req->data = newSVsv (pathname);
401	req->dataptr = SvPV_nolen (req->data);	649	req->dataptr = SvPVbyte_nolen (req->data);
402	req->fd = flags;	650	req->fd = flags;
403	req->mode = mode;	651	req->mode = mode;
404	req->callback = SvREFCNT_inc (callback);
405		652
406	send_req (req);	653	send_req (req);
407	}	654	}
408		655
409	void	656	void
…		…
415	aio_close = REQ_CLOSE	662	aio_close = REQ_CLOSE
416	aio_fsync = REQ_FSYNC	663	aio_fsync = REQ_FSYNC
417	aio_fdatasync = REQ_FDATASYNC	664	aio_fdatasync = REQ_FDATASYNC
418	CODE:	665	CODE:
419	{	666	{
420	aio_req req;	667	dREQ;
421
422	Newz (0, req, 1, aio_cb);
423
424	if (!req)
425	croak ("out of memory during aio_req allocation");
426		668
427	req->type = ix;	669	req->type = ix;
428	req->fh = newSVsv (fh);	670	req->fh = newSVsv (fh);
429	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	671	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
430	req->callback = SvREFCNT_inc (callback);
431		672
432	send_req (req);	673	send_req (req);
433	}	674	}
434		675
435	void	676	void
436	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	677	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
437	SV * fh	678	SV * fh
438	UV offset	679	UV offset
439	IV length	680	UV length
440	SV * data	681	SV * data
441	IV dataoffset	682	UV dataoffset
442	SV * callback	683	SV * callback
443	ALIAS:	684	ALIAS:
444	aio_read = REQ_READ	685	aio_read = REQ_READ
445	aio_write = REQ_WRITE	686	aio_write = REQ_WRITE
446	PROTOTYPE: $$$$$;$	687	PROTOTYPE: $$$$$;$
447	CODE:	688	CODE:
448	{	689	{
449	aio_req req;	690	aio_req req;
450	STRLEN svlen;	691	STRLEN svlen;
451	char *svptr = SvPV (data, svlen);	692	char *svptr = SvPVbyte (data, svlen);
452		693
453	SvUPGRADE (data, SVt_PV);	694	SvUPGRADE (data, SVt_PV);
454	SvPOK_on (data);	695	SvPOK_on (data);
455		696
456	if (dataoffset < 0)	697	if (dataoffset < 0)
…		…
472	}	713	}
473		714
474	if (length < 0)	715	if (length < 0)
475	croak ("length must not be negative");	716	croak ("length must not be negative");
476		717
477	Newz (0, req, 1, aio_cb);	718	{
		719	dREQ;
478		720
479	if (!req)
480	croak ("out of memory during aio_req allocation");
481
482	req->type = ix;	721	req->type = ix;
483	req->fh = newSVsv (fh);	722	req->fh = newSVsv (fh);
484	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	723	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))
485	: IoOFP (sv_2io (fh)));	724	: IoOFP (sv_2io (fh)));
486	req->offset = offset;	725	req->offset = offset;
		726	req->length = length;
		727	req->data = SvREFCNT_inc (data);
		728	req->dataptr = (char *)svptr + dataoffset;
		729
		730	if (!SvREADONLY (data))
		731	{
		732	SvREADONLY_on (data);
		733	req->data2ptr = (void *)data;
		734	}
		735
		736	send_req (req);
		737	}
		738	}
		739
		740	void
		741	aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
		742	SV * out_fh
		743	SV * in_fh
		744	UV in_offset
		745	UV length
		746	SV * callback
		747	PROTOTYPE: $$$$;$
		748	CODE:
		749	{
		750	dREQ;
		751
		752	req->type = REQ_SENDFILE;
		753	req->fh = newSVsv (out_fh);
		754	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
		755	req->fh2 = newSVsv (in_fh);
		756	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
		757	req->offset = in_offset;
487	req->length = length;	758	req->length = length;
488	req->data = SvREFCNT_inc (data);
489	req->dataptr = (char *)svptr + dataoffset;
490	req->callback = SvREFCNT_inc (callback);
491		759
492	send_req (req);	760	send_req (req);
493	}	761	}
494		762
495	void	763	void
…		…
499	IV length	767	IV length
500	SV * callback	768	SV * callback
501	PROTOTYPE: $$$;$	769	PROTOTYPE: $$$;$
502	CODE:	770	CODE:
503	{	771	{
504	aio_req req;	772	dREQ;
505
506	if (length < 0)
507	croak ("length must not be negative");
508
509	Newz (0, req, 1, aio_cb);
510
511	if (!req)
512	croak ("out of memory during aio_req allocation");
513		773
514	req->type = REQ_READAHEAD;	774	req->type = REQ_READAHEAD;
515	req->fh = newSVsv (fh);	775	req->fh = newSVsv (fh);
516	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	776	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
517	req->offset = offset;	777	req->offset = offset;
518	req->length = length;	778	req->length = length;
519	req->callback = SvREFCNT_inc (callback);
520		779
521	send_req (req);	780	send_req (req);
522	}	781	}
523		782
524	void	783	void
…		…
528	ALIAS:	787	ALIAS:
529	aio_stat = REQ_STAT	788	aio_stat = REQ_STAT
530	aio_lstat = REQ_LSTAT	789	aio_lstat = REQ_LSTAT
531	CODE:	790	CODE:
532	{	791	{
533	aio_req req;	792	dREQ;
534
535	Newz (0, req, 1, aio_cb);
536
537	if (!req)
538	croak ("out of memory during aio_req allocation");
539		793
540	New (0, req->statdata, 1, Stat_t);	794	New (0, req->statdata, 1, Stat_t);
541
542	if (!req->statdata)	795	if (!req->statdata)
		796	{
		797	free_req (req);
543	croak ("out of memory during aio_req->statdata allocation");	798	croak ("out of memory during aio_req->statdata allocation");
		799	}
544		800
545	if (SvPOK (fh_or_path))	801	if (SvPOK (fh_or_path))
546	{	802	{
547	req->type = ix;	803	req->type = ix;
548	req->data = newSVsv (fh_or_path);	804	req->data = newSVsv (fh_or_path);
549	req->dataptr = SvPV_nolen (req->data);	805	req->dataptr = SvPVbyte_nolen (req->data);
550	}	806	}
551	else	807	else
552	{	808	{
553	req->type = REQ_FSTAT;	809	req->type = REQ_FSTAT;
554	req->fh = newSVsv (fh_or_path);	810	req->fh = newSVsv (fh_or_path);
555	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	811	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
556	}	812	}
557		813
558	req->callback = SvREFCNT_inc (callback);
559
560	send_req (req);	814	send_req (req);
561	}	815	}
562		816
563	void	817	void
564	aio_unlink(pathname,callback=&PL_sv_undef)	818	aio_unlink(pathname,callback=&PL_sv_undef)
565	SV * pathname	819	SV * pathname
566	SV * callback	820	SV * callback
		821	ALIAS:
		822	aio_unlink = REQ_UNLINK
		823	aio_rmdir = REQ_RMDIR
567	CODE:	824	CODE:
568	{	825	{
569	aio_req req;	826	dREQ;
570		827
571	Newz (0, req, 1, aio_cb);	828	req->type = ix;
		829	req->data = newSVsv (pathname);
		830	req->dataptr = SvPVbyte_nolen (req->data);
572		831
573	if (!req)	832	send_req (req);
574	croak ("out of memory during aio_req allocation");	833	}
		834
		835	void
		836	aio_symlink(oldpath,newpath,callback=&PL_sv_undef)
		837	SV * oldpath
		838	SV * newpath
		839	SV * callback
		840	CODE:
		841	{
		842	dREQ;
575		843
576	req->type = REQ_UNLINK;	844	req->type = REQ_SYMLINK;
		845	req->fh = newSVsv (oldpath);
		846	req->data2ptr = SvPVbyte_nolen (req->fh);
577	req->data = newSVsv (pathname);	847	req->data = newSVsv (newpath);
578	req->dataptr = SvPV_nolen (req->data);	848	req->dataptr = SvPVbyte_nolen (req->data);
579	req->callback = SvREFCNT_inc (callback);
580		849
581	send_req (req);	850	send_req (req);
582	}	851	}
583		852
584	void	853	void

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.16 by root, Sun Jul 31 18:20:07 2005 UTC vs. Revision 1.33 by root, Mon Aug 22 23:21:57 2005 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.16 by root, Sun Jul 31 18:20:07 2005 UTC vs.
Revision 1.33 by root, Mon Aug 22 23:21:57 2005 UTC