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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.28 by root, Wed Aug 17 05:06:59 2005 UTC vs.
Revision 1.42 by root, Fri Jul 21 07:35:31 2006 UTC

…		…
5	#include "perl.h"	5	#include "perl.h"
6	#include "XSUB.h"	6	#include "XSUB.h"
7		7
8	#include "autoconf/config.h"	8	#include "autoconf/config.h"
9		9
		10	#include <pthread.h>
		11
		12	#include <stddef.h>
		13	#include <errno.h>
10	#include <sys/types.h>	14	#include <sys/types.h>
11	#include <sys/stat.h>	15	#include <sys/stat.h>
12		16	#include <limits.h>
13	#include <unistd.h>	17	#include <unistd.h>
14	#include <fcntl.h>	18	#include <fcntl.h>
15	#include <signal.h>	19	#include <signal.h>
16	#include <sched.h>	20	#include <sched.h>
17		21
18	#include <pthread.h>	22	#if HAVE_SENDFILE
		23	# if __linux
		24	# include <sys/sendfile.h>
		25	# elif __freebsd
		26	# include <sys/socket.h>
		27	# include <sys/uio.h>
		28	# elif __hpux
		29	# include <sys/socket.h>
		30	# elif __solaris /* not yet */
		31	# include <sys/sendfile.h>
		32	# else
		33	# error sendfile support requested but not available
		34	# endif
		35	#endif
19		36
20	typedef void InputStream; / hack, but 5.6.1 is simply toooo old ;) */	37	/* used for struct dirent, AIX doesn't provide it */
21	typedef void OutputStream; / hack, but 5.6.1 is simply toooo old ;) */	38	#ifndef NAME_MAX
22	typedef void InOutStream; / hack, but 5.6.1 is simply toooo old ;) */	39	# define NAME_MAX 4096
		40	#endif
23		41
24	#if __ia64	42	#if __ia64
25	# define STACKSIZE 65536	43	# define STACKSIZE 65536
26	#else	44	#else
27	# define STACKSIZE 4096	45	# define STACKSIZE 8192
28	#endif	46	#endif
29		47
30	enum {	48	enum {
31	REQ_QUIT,	49	REQ_QUIT,
32	REQ_OPEN, REQ_CLOSE,	50	REQ_OPEN, REQ_CLOSE,
33	REQ_READ, REQ_WRITE, REQ_READAHEAD,	51	REQ_READ, REQ_WRITE, REQ_READAHEAD,
		52	REQ_SENDFILE,
34	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	53	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
35	REQ_FSYNC, REQ_FDATASYNC,	54	REQ_FSYNC, REQ_FDATASYNC,
36	REQ_UNLINK, REQ_RMDIR,	55	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
37	REQ_SYMLINK,	56	REQ_READDIR,
		57	REQ_LINK, REQ_SYMLINK,
38	};	58	};
39		59
40	typedef struct aio_cb {	60	typedef struct aio_cb {
41	struct aio_cb *volatile next;	61	struct aio_cb *volatile next;
42		62
43	int type;	63	int type;
44		64
		65	/* should receive a cleanup, with unions */
45	int fd;	66	int fd, fd2;
46	off_t offset;	67	off_t offset;
47	size_t length;	68	size_t length;
48	ssize_t result;	69	ssize_t result;
49	mode_t mode; /* open */	70	mode_t mode; /* open */
50	int errorno;	71	int errorno;
51	SV data, callback, *fh;	72	SV data, callback;
		73	SV fh, fh2;
52	void dataptr, data2ptr;	74	void dataptr, data2ptr;
53	STRLEN dataoffset;	75	STRLEN dataoffset;
54		76
55	Stat_t *statdata;	77	Stat_t *statdata;
56	} aio_cb;	78	} aio_cb;
57		79
58	typedef aio_cb *aio_req;	80	typedef aio_cb *aio_req;
59		81
60	static int started;	82	static int started, wanted;
61	static volatile int nreqs;	83	static volatile int nreqs;
62	static int max_outstanding = 1<<30;	84	static int max_outstanding = 1<<30;
63	static int respipe [2];	85	static int respipe [2];
64		86
65	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	87	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;
…		…
75	SvREFCNT_dec (req->data);	97	SvREFCNT_dec (req->data);
76		98
77	if (req->fh)	99	if (req->fh)
78	SvREFCNT_dec (req->fh);	100	SvREFCNT_dec (req->fh);
79		101
		102	if (req->fh2)
		103	SvREFCNT_dec (req->fh2);
		104
80	if (req->statdata)	105	if (req->statdata)
81	Safefree (req->statdata);	106	Safefree (req->statdata);
82		107
83	if (req->callback)	108	if (req->callback)
84	SvREFCNT_dec (req->callback);	109	SvREFCNT_dec (req->callback);
		110
		111	if (req->type == REQ_READDIR && req->result >= 0)
		112	free (req->data2ptr);
85		113
86	Safefree (req);	114	Safefree (req);
87	}	115	}
88		116
89	static void	117	static void
…		…
116	{	144	{
117	ress = req->next;	145	ress = req->next;
118		146
119	if (!ress)	147	if (!ress)
120	{	148	{
121	rese = 0;
122
123	/* read any signals sent by the worker threads */	149	/* read any signals sent by the worker threads */
124	char buf [32];	150	char buf [32];
125	while (read (respipe [0], buf, 32) == 32)	151	while (read (respipe [0], buf, 32) == 32)
126	;	152	;
		153
		154	rese = 0;
127	}	155	}
128	}	156	}
129		157
130	pthread_mutex_unlock (&reslock);	158	pthread_mutex_unlock (&reslock);
131		159
…		…
154	PL_statcache = *(req->statdata);	182	PL_statcache = *(req->statdata);
155	}	183	}
156		184
157	ENTER;	185	ENTER;
158	PUSHMARK (SP);	186	PUSHMARK (SP);
159	XPUSHs (sv_2mortal (newSViv (req->result)));
160		187
161	if (req->type == REQ_OPEN)	188	if (req->type == REQ_READDIR)
162	{	189	{
		190	SV *rv = &PL_sv_undef;
		191
		192	if (req->result >= 0)
		193	{
		194	char *buf = req->data2ptr;
		195	AV *av = newAV ();
		196
		197	while (req->result)
		198	{
		199	SV *sv = newSVpv (buf, 0);
		200
		201	av_push (av, sv);
		202	buf += SvCUR (sv) + 1;
		203	req->result--;
		204	}
		205
		206	rv = sv_2mortal (newRV_noinc ((SV *)av));
		207	}
		208
		209	XPUSHs (rv);
		210	}
		211	else
		212	{
		213	XPUSHs (sv_2mortal (newSViv (req->result)));
		214
		215	if (req->type == REQ_OPEN)
		216	{
163	/* convert fd to fh */	217	/* convert fd to fh */
164	SV *fh;	218	SV *fh;
165		219
166	PUTBACK;	220	PUTBACK;
167	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);	221	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
168	SPAGAIN;	222	SPAGAIN;
169		223
170	fh = SvREFCNT_inc (POPs);	224	fh = SvREFCNT_inc (POPs);
171		225
172	PUSHMARK (SP);	226	PUSHMARK (SP);
173	XPUSHs (sv_2mortal (fh));	227	XPUSHs (sv_2mortal (fh));
		228	}
174	}	229	}
175		230
176	if (SvOK (req->callback))	231	if (SvOK (req->callback))
177	{	232	{
178	PUTBACK;	233	PUTBACK;
…		…
221	}	276	}
222		277
223	static void	278	static void
224	send_req (aio_req req)	279	send_req (aio_req req)
225	{	280	{
		281	while (started < wanted && nreqs >= started)
		282	start_thread ();
		283
226	nreqs++;	284	nreqs++;
227		285
228	pthread_mutex_lock (&reqlock);	286	pthread_mutex_lock (&reqlock);
229		287
230	req->next = 0;	288	req->next = 0;
…		…
262	send_req (req);	320	send_req (req);
263	}	321	}
264		322
265	static void min_parallel (int nthreads)	323	static void min_parallel (int nthreads)
266	{	324	{
267	while (nthreads > started)	325	if (wanted < nthreads)
268	start_thread ();	326	wanted = nthreads;
269	}	327	}
270		328
271	static void max_parallel (int nthreads)	329	static void max_parallel (int nthreads)
272	{	330	{
273	int cur = started;	331	int cur = started;
274		332
		333	if (wanted > nthreads)
		334	wanted = nthreads;
		335
275	while (cur > nthreads)	336	while (cur > wanted)
276	{	337	{
277	end_thread ();	338	end_thread ();
278	cur--;	339	cur--;
279	}	340	}
280		341
281	while (started > nthreads)	342	while (started > wanted)
282	{	343	{
283	poll_wait ();	344	poll_wait ();
284	poll_cb ();	345	poll_cb ();
285	}	346	}
286	}	347	}
…		…
293	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))	354	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
294	croak ("cannot set result pipe to nonblocking mode");	355	croak ("cannot set result pipe to nonblocking mode");
295		356
296	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))	357	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
297	croak ("cannot set result pipe to nonblocking mode");	358	croak ("cannot set result pipe to nonblocking mode");
298	}
299
300	static void atfork_prepare (void)
301	{
302	pthread_mutex_lock (&reqlock);
303	pthread_mutex_lock (&reslock);
304	}
305
306	static void atfork_parent (void)
307	{
308	pthread_mutex_unlock (&reslock);
309	pthread_mutex_unlock (&reqlock);
310	}
311
312	static void atfork_child (void)
313	{
314	aio_req prv;
315
316	int restart = started;
317	started = 0;
318
319	while (reqs)
320	{
321	prv = reqs;
322	reqs = prv->next;
323	free_req (prv);
324	}
325
326	reqs = reqe = 0;
327
328	while (ress)
329	{
330	prv = ress;
331	ress = prv->next;
332	free_req (prv);
333	}
334
335	ress = rese = 0;
336
337	atfork_parent ();
338
339	min_parallel (restart);
340	}	359	}
341		360
342	/*****************************************************************************/	361	/*****************************************************************************/
343	/* work around various missing functions */	362	/* work around various missing functions */
344		363
…		…
349	/*	368	/*
350	* make our pread/pwrite safe against themselves, but not against	369	* make our pread/pwrite safe against themselves, but not against
351	* normal read/write by using a mutex. slows down execution a lot,	370	* normal read/write by using a mutex. slows down execution a lot,
352	* but that's your problem, not mine.	371	* but that's your problem, not mine.
353	*/	372	*/
354	static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER;	373	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
355		374
356	static ssize_t	375	static ssize_t
357	pread (int fd, void *buf, size_t count, off_t offset)	376	pread (int fd, void *buf, size_t count, off_t offset)
358	{	377	{
359	ssize_t res;	378	ssize_t res;
360	off_t ooffset;	379	off_t ooffset;
361		380
362	pthread_mutex_lock (&iolock);	381	pthread_mutex_lock (&preadwritelock);
363	ooffset = lseek (fd, 0, SEEK_CUR);	382	ooffset = lseek (fd, 0, SEEK_CUR);
364	lseek (fd, offset, SEEK_SET);	383	lseek (fd, offset, SEEK_SET);
365	res = read (fd, buf, count);	384	res = read (fd, buf, count);
366	lseek (fd, ooffset, SEEK_SET);	385	lseek (fd, ooffset, SEEK_SET);
367	pthread_mutex_unlock (&iolock);	386	pthread_mutex_unlock (&preadwritelock);
368		387
369	return res;	388	return res;
370	}	389	}
371		390
372	static ssize_t	391	static ssize_t
373	pwrite (int fd, void *buf, size_t count, off_t offset)	392	pwrite (int fd, void *buf, size_t count, off_t offset)
374	{	393	{
375	ssize_t res;	394	ssize_t res;
376	off_t ooffset;	395	off_t ooffset;
377		396
378	pthread_mutex_lock (&iolock);	397	pthread_mutex_lock (&preadwritelock);
379	ooffset = lseek (fd, 0, SEEK_CUR);	398	ooffset = lseek (fd, 0, SEEK_CUR);
380	lseek (fd, offset, SEEK_SET);	399	lseek (fd, offset, SEEK_SET);
381	res = write (fd, buf, count);	400	res = write (fd, buf, count);
382	lseek (fd, offset, SEEK_SET);	401	lseek (fd, offset, SEEK_SET);
383	pthread_mutex_unlock (&iolock);	402	pthread_mutex_unlock (&preadwritelock);
384		403
385	return res;	404	return res;
386	}	405	}
387	#endif	406	#endif
388		407
…		…
391	#endif	410	#endif
392		411
393	#if !HAVE_READAHEAD	412	#if !HAVE_READAHEAD
394	# define readahead aio_readahead	413	# define readahead aio_readahead
395		414
396	static char readahead_buf[4096];
397
398	static ssize_t	415	static ssize_t
399	readahead (int fd, off_t offset, size_t count)	416	readahead (int fd, off_t offset, size_t count)
400	{	417	{
		418	char readahead_buf[4096];
		419
401	while (count > 0)	420	while (count > 0)
402	{	421	{
403	size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);	422	size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
404		423
405	pread (fd, readahead_buf, len, offset);	424	pread (fd, readahead_buf, len, offset);
…		…
408	}	427	}
409		428
410	errno = 0;	429	errno = 0;
411	}	430	}
412	#endif	431	#endif
		432
		433	#if !HAVE_READDIR_R
		434	# define readdir_r aio_readdir_r
		435
		436	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
		437
		438	static int
		439	readdir_r (DIR dirp, struct dirent ent, struct dirent **res)
		440	{
		441	struct dirent *e;
		442	int errorno;
		443
		444	pthread_mutex_lock (&readdirlock);
		445
		446	e = readdir (dirp);
		447	errorno = errno;
		448
		449	if (e)
		450	{
		451	*res = ent;
		452	strcpy (ent->d_name, e->d_name);
		453	}
		454	else
		455	*res = 0;
		456
		457	pthread_mutex_unlock (&readdirlock);
		458
		459	errno = errorno;
		460	return e ? 0 : -1;
		461	}
		462	#endif
		463
		464	/* sendfile always needs emulation */
		465	static ssize_t
		466	sendfile_ (int ofd, int ifd, off_t offset, size_t count)
		467	{
		468	ssize_t res;
		469
		470	if (!count)
		471	return 0;
		472
		473	#if HAVE_SENDFILE
		474	# if __linux
		475	res = sendfile (ofd, ifd, &offset, count);
		476
		477	# elif __freebsd
		478	/*
		479	* Of course, the freebsd sendfile is a dire hack with no thoughts
		480	* wasted on making it similar to other I/O functions.
		481	*/
		482	{
		483	off_t sbytes;
		484	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
		485
		486	if (res < 0 && sbytes)
		487	/* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
		488	res = sbytes;
		489	}
		490
		491	# elif __hpux
		492	res = sendfile (ofd, ifd, offset, count, 0, 0);
		493
		494	# elif __solaris
		495	{
		496	struct sendfilevec vec;
		497	size_t sbytes;
		498
		499	vec.sfv_fd = ifd;
		500	vec.sfv_flag = 0;
		501	vec.sfv_off = offset;
		502	vec.sfv_len = count;
		503
		504	res = sendfilev (ofd, &vec, 1, &sbytes);
		505
		506	if (res < 0 && sbytes)
		507	res = sbytes;
		508	}
		509
		510	# endif
		511	#else
		512	res = -1;
		513	errno = ENOSYS;
		514	#endif
		515
		516	if (res < 0
		517	&& (errno == ENOSYS \|\| errno == EINVAL \|\| errno == ENOTSOCK
		518	#if __solaris
		519	\|\| errno == EAFNOSUPPORT \|\| errno == EPROTOTYPE
		520	#endif
		521	)
		522	)
		523	{
		524	/* emulate sendfile. this is a major pain in the ass */
		525	char buf[4096];
		526	res = 0;
		527
		528	while (count)
		529	{
		530	ssize_t cnt;
		531
		532	cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
		533
		534	if (cnt <= 0)
		535	{
		536	if (cnt && !res) res = -1;
		537	break;
		538	}
		539
		540	cnt = write (ofd, buf, cnt);
		541
		542	if (cnt <= 0)
		543	{
		544	if (cnt && !res) res = -1;
		545	break;
		546	}
		547
		548	offset += cnt;
		549	res += cnt;
		550	count -= cnt;
		551	}
		552	}
		553
		554	return res;
		555	}
		556
		557	/* read a full directory */
		558	static int
		559	scandir_ (const char path, void *namesp)
		560	{
		561	DIR *dirp = opendir (path);
		562	union
		563	{
		564	struct dirent d;
		565	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
		566	} u;
		567	struct dirent *entp;
		568	char name, names;
		569	int memlen = 4096;
		570	int memofs = 0;
		571	int res = 0;
		572	int errorno;
		573
		574	if (!dirp)
		575	return -1;
		576
		577	names = malloc (memlen);
		578
		579	for (;;)
		580	{
		581	errno = 0, readdir_r (dirp, &u.d, &entp);
		582
		583	if (!entp)
		584	break;
		585
		586	name = entp->d_name;
		587
		588	if (name [0] != '.' \|\| (name [1] && (name [1] != '.' \|\| name [2])))
		589	{
		590	int len = strlen (name) + 1;
		591
		592	res++;
		593
		594	while (memofs + len > memlen)
		595	{
		596	memlen *= 2;
		597	names = realloc (names, memlen);
		598	if (!names)
		599	break;
		600	}
		601
		602	memcpy (names + memofs, name, len);
		603	memofs += len;
		604	}
		605	}
		606
		607	errorno = errno;
		608	closedir (dirp);
		609
		610	if (errorno)
		611	{
		612	free (names);
		613	errno = errorno;
		614	res = -1;
		615	}
		616
		617	namesp = (void )names;
		618	return res;
		619	}
413		620
414	/*****************************************************************************/	621	/*****************************************************************************/
415		622
416	static void *	623	static void *
417	aio_proc (void *thr_arg)	624	aio_proc (void *thr_arg)
…		…
449	{	656	{
450	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	657	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
451	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	658	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
452		659
453	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	660	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
		661	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
454		662
455	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	663	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
456	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	664	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
457	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	665	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
458		666
459	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	667	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
460	case REQ_CLOSE: req->result = close (req->fd); break;	668	case REQ_CLOSE: req->result = close (req->fd); break;
461	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	669	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
462	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	670	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
		671	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
		672	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
463	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	673	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
464		674
465	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	675	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
466	case REQ_FSYNC: req->result = fsync (req->fd); break;	676	case REQ_FSYNC: req->result = fsync (req->fd); break;
		677	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
467		678
468	case REQ_QUIT:	679	case REQ_QUIT:
469	break;	680	break;
470		681
471	default:	682	default:
…		…
495	pthread_mutex_unlock (&reslock);	706	pthread_mutex_unlock (&reslock);
496	}	707	}
497	while (type != REQ_QUIT);	708	while (type != REQ_QUIT);
498		709
499	return 0;	710	return 0;
		711	}
		712
		713	/*****************************************************************************/
		714
		715	static void atfork_prepare (void)
		716	{
		717	pthread_mutex_lock (&reqlock);
		718	pthread_mutex_lock (&reslock);
		719	#if !HAVE_PREADWRITE
		720	pthread_mutex_lock (&preadwritelock);
		721	#endif
		722	#if !HAVE_READDIR_R
		723	pthread_mutex_lock (&readdirlock);
		724	#endif
		725	}
		726
		727	static void atfork_parent (void)
		728	{
		729	#if !HAVE_READDIR_R
		730	pthread_mutex_unlock (&readdirlock);
		731	#endif
		732	#if !HAVE_PREADWRITE
		733	pthread_mutex_unlock (&preadwritelock);
		734	#endif
		735	pthread_mutex_unlock (&reslock);
		736	pthread_mutex_unlock (&reqlock);
		737	}
		738
		739	static void atfork_child (void)
		740	{
		741	aio_req prv;
		742
		743	started = 0;
		744
		745	while (reqs)
		746	{
		747	prv = reqs;
		748	reqs = prv->next;
		749	free_req (prv);
		750	}
		751
		752	reqs = reqe = 0;
		753
		754	while (ress)
		755	{
		756	prv = ress;
		757	ress = prv->next;
		758	free_req (prv);
		759	}
		760
		761	ress = rese = 0;
		762
		763	close (respipe [0]);
		764	close (respipe [1]);
		765	create_pipe ();
		766
		767	atfork_parent ();
500	}	768	}
501		769
502	#define dREQ \	770	#define dREQ \
503	aio_req req; \	771	aio_req req; \
504	\	772	\
…		…
515		783
516	PROTOTYPES: ENABLE	784	PROTOTYPES: ENABLE
517		785
518	BOOT:	786	BOOT:
519	{	787	{
		788	HV *stash = gv_stashpv ("IO::AIO", 1);
		789	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
		790	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
		791	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
		792
520	create_pipe ();	793	create_pipe ();
521	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	794	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
522	}	795	}
523		796
524	void	797	void
525	min_parallel(nthreads)	798	min_parallel (nthreads)
526	int nthreads	799	int nthreads
527	PROTOTYPE: $	800	PROTOTYPE: $
528		801
529	void	802	void
530	max_parallel(nthreads)	803	max_parallel (nthreads)
531	int nthreads	804	int nthreads
532	PROTOTYPE: $	805	PROTOTYPE: $
533		806
534	int	807	int
535	max_outstanding(nreqs)	808	max_outstanding (nreqs)
536	int nreqs	809	int nreqs
537	PROTOTYPE: $	810	PROTOTYPE: $
538	CODE:	811	CODE:
539	RETVAL = max_outstanding;	812	RETVAL = max_outstanding;
540	max_outstanding = nreqs;	813	max_outstanding = nreqs;
541		814
542	void	815	void
543	aio_open(pathname,flags,mode,callback=&PL_sv_undef)	816	aio_open (pathname,flags,mode,callback=&PL_sv_undef)
544	SV * pathname	817	SV * pathname
545	int flags	818	int flags
546	int mode	819	int mode
547	SV * callback	820	SV * callback
548	PROTOTYPE: $$$;$	821	PROTOTYPE: $$$;$
…		…
558		831
559	send_req (req);	832	send_req (req);
560	}	833	}
561		834
562	void	835	void
563	aio_close(fh,callback=&PL_sv_undef)	836	aio_close (fh,callback=&PL_sv_undef)
564	SV * fh	837	SV * fh
565	SV * callback	838	SV * callback
566	PROTOTYPE: $;$	839	PROTOTYPE: $;$
567	ALIAS:	840	ALIAS:
568	aio_close = REQ_CLOSE	841	aio_close = REQ_CLOSE
…		…
578		851
579	send_req (req);	852	send_req (req);
580	}	853	}
581		854
582	void	855	void
583	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	856	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
584	SV * fh	857	SV * fh
585	UV offset	858	UV offset
586	IV length	859	UV length
587	SV * data	860	SV * data
588	IV dataoffset	861	UV dataoffset
589	SV * callback	862	SV * callback
590	ALIAS:	863	ALIAS:
591	aio_read = REQ_READ	864	aio_read = REQ_READ
592	aio_write = REQ_WRITE	865	aio_write = REQ_WRITE
593	PROTOTYPE: $$$$$;$	866	PROTOTYPE: $$$$$;$
…		…
642	send_req (req);	915	send_req (req);
643	}	916	}
644	}	917	}
645		918
646	void	919	void
		920	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
		921	SV * out_fh
		922	SV * in_fh
		923	UV in_offset
		924	UV length
		925	SV * callback
		926	PROTOTYPE: $$$$;$
		927	CODE:
		928	{
		929	dREQ;
		930
		931	req->type = REQ_SENDFILE;
		932	req->fh = newSVsv (out_fh);
		933	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));
		934	req->fh2 = newSVsv (in_fh);
		935	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
		936	req->offset = in_offset;
		937	req->length = length;
		938
		939	send_req (req);
		940	}
		941
		942	void
647	aio_readahead(fh,offset,length,callback=&PL_sv_undef)	943	aio_readahead (fh,offset,length,callback=&PL_sv_undef)
648	SV * fh	944	SV * fh
649	UV offset	945	UV offset
650	IV length	946	IV length
651	SV * callback	947	SV * callback
652	PROTOTYPE: $$$;$	948	PROTOTYPE: $$$;$
…		…
662		958
663	send_req (req);	959	send_req (req);
664	}	960	}
665		961
666	void	962	void
667	aio_stat(fh_or_path,callback=&PL_sv_undef)	963	aio_stat (fh_or_path,callback=&PL_sv_undef)
668	SV * fh_or_path	964	SV * fh_or_path
669	SV * callback	965	SV * callback
670	ALIAS:	966	ALIAS:
671	aio_stat = REQ_STAT	967	aio_stat = REQ_STAT
672	aio_lstat = REQ_LSTAT	968	aio_lstat = REQ_LSTAT
…		…
696		992
697	send_req (req);	993	send_req (req);
698	}	994	}
699		995
700	void	996	void
701	aio_unlink(pathname,callback=&PL_sv_undef)	997	aio_unlink (pathname,callback=&PL_sv_undef)
702	SV * pathname	998	SV * pathname
703	SV * callback	999	SV * callback
704	ALIAS:	1000	ALIAS:
705	aio_unlink = REQ_UNLINK	1001	aio_unlink = REQ_UNLINK
706	aio_rmdir = REQ_RMDIR	1002	aio_rmdir = REQ_RMDIR
		1003	aio_readdir = REQ_READDIR
707	CODE:	1004	CODE:
708	{	1005	{
709	dREQ;	1006	dREQ;
710		1007
711	req->type = ix;	1008	req->type = ix;
…		…
714		1011
715	send_req (req);	1012	send_req (req);
716	}	1013	}
717		1014
718	void	1015	void
719	aio_symlink(oldpath,newpath,callback=&PL_sv_undef)	1016	aio_link (oldpath,newpath,callback=&PL_sv_undef)
720	SV * oldpath	1017	SV * oldpath
721	SV * newpath	1018	SV * newpath
722	SV * callback	1019	SV * callback
		1020	ALIAS:
		1021	aio_link = REQ_LINK
		1022	aio_symlink = REQ_SYMLINK
		1023	aio_rename = REQ_RENAME
723	CODE:	1024	CODE:
724	{	1025	{
725	dREQ;	1026	dREQ;
726		1027
727	req->type = REQ_SYMLINK;	1028	req->type = ix;
728	req->fh = newSVsv (oldpath);	1029	req->fh = newSVsv (oldpath);
729	req->data2ptr = SvPVbyte_nolen (req->fh);	1030	req->data2ptr = SvPVbyte_nolen (req->fh);
730	req->data = newSVsv (newpath);	1031	req->data = newSVsv (newpath);
731	req->dataptr = SvPVbyte_nolen (req->data);	1032	req->dataptr = SvPVbyte_nolen (req->data);
732		1033
733	send_req (req);	1034	send_req (req);
734	}	1035	}
735		1036
		1037	#if 0
		1038
		1039	# undocumented, because it does not cancel active requests
736	void	1040	void
		1041	cancel_most_requests ()
		1042	PROTOTYPE:
		1043	CODE:
		1044	{
		1045	aio_req *req;
		1046
		1047	pthread_mutex_lock (&reqlock);
		1048	for (req = reqs; req; req = req->next)
		1049	req->flags \|= 1;
		1050	pthread_mutex_unlock (&reqlock);
		1051
		1052	pthread_mutex_lock (&reslock);
		1053	for (req = ress; req; req = req->next)
		1054	req->flags \|= 1;
		1055	pthread_mutex_unlock (&reslock);
		1056	}
		1057
		1058	#endif
		1059
		1060	void
737	flush()	1061	flush ()
738	PROTOTYPE:	1062	PROTOTYPE:
739	CODE:	1063	CODE:
740	while (nreqs)	1064	while (nreqs)
741	{	1065	{
742	poll_wait ();	1066	poll_wait ();

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.28 by root, Wed Aug 17 05:06:59 2005 UTC vs. Revision 1.42 by root, Fri Jul 21 07:35:31 2006 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.28 by root, Wed Aug 17 05:06:59 2005 UTC vs.
Revision 1.42 by root, Fri Jul 21 07:35:31 2006 UTC