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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.36 by root, Tue Aug 23 01:18:04 2005 UTC vs.
Revision 1.62 by root, Mon Oct 23 22:45:18 2006 UTC

…		…
7		7
8	#include "autoconf/config.h"	8	#include "autoconf/config.h"
9		9
10	#include <pthread.h>	10	#include <pthread.h>
11		11
		12	#include <stddef.h>
		13	#include <errno.h>
		14	#include <sys/time.h>
		15	#include <sys/select.h>
12	#include <sys/types.h>	16	#include <sys/types.h>
13	#include <sys/stat.h>	17	#include <sys/stat.h>
14		18	#include <limits.h>
15	#include <unistd.h>	19	#include <unistd.h>
16	#include <fcntl.h>	20	#include <fcntl.h>
17	#include <signal.h>	21	#include <signal.h>
18	#include <sched.h>	22	#include <sched.h>
19		23
…		…
30	# else	34	# else
31	# error sendfile support requested but not available	35	# error sendfile support requested but not available
32	# endif	36	# endif
33	#endif	37	#endif
34		38
		39	/* used for struct dirent, AIX doesn't provide it */
		40	#ifndef NAME_MAX
		41	# define NAME_MAX 4096
		42	#endif
		43
35	#if __ia64	44	#if __ia64
36	# define STACKSIZE 65536	45	# define STACKSIZE 65536
37	#else	46	#else
38	# define STACKSIZE 4096	47	# define STACKSIZE 8192
39	#endif	48	#endif
40		49
41	enum {	50	enum {
42	REQ_QUIT,	51	REQ_QUIT,
43	REQ_OPEN, REQ_CLOSE,	52	REQ_OPEN, REQ_CLOSE,
44	REQ_READ, REQ_WRITE, REQ_READAHEAD,	53	REQ_READ, REQ_WRITE, REQ_READAHEAD,
45	REQ_SENDFILE,	54	REQ_SENDFILE,
46	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	55	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
47	REQ_FSYNC, REQ_FDATASYNC,	56	REQ_FSYNC, REQ_FDATASYNC,
48	REQ_UNLINK, REQ_RMDIR,	57	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
49	REQ_SYMLINK,	58	REQ_READDIR,
		59	REQ_LINK, REQ_SYMLINK,
		60	REQ_GROUP, REQ_NOP,
		61	REQ_SLEEP,
50	};	62	};
51		63
		64	#define AIO_REQ_KLASS "IO::AIO::REQ"
		65	#define AIO_GRP_KLASS "IO::AIO::GRP"
		66
52	typedef struct aio_cb {	67	typedef struct aio_cb
		68	{
53	struct aio_cb *volatile next;	69	struct aio_cb *volatile next;
54		70
55	int type;	71	SV data, callback;
56		72	SV fh, fh2;
57	int fd, fd2;	73	void dataptr, data2ptr;
		74	Stat_t *statdata;
58	off_t offset;	75	off_t offset;
59	size_t length;	76	size_t length;
60	ssize_t result;	77	ssize_t result;
		78
		79	STRLEN dataoffset;
		80	int type;
		81	int fd, fd2;
		82	int errorno;
61	mode_t mode; /* open */	83	mode_t mode; /* open */
62	int errorno;
63	SV data, callback;
64	SV fh, fh2;
65	void dataptr, data2ptr;
66	STRLEN dataoffset;
67		84
68	Stat_t *statdata;	85	unsigned char flags;
		86	unsigned char pri;
		87
		88	SV self; / the perl counterpart of this request, if any */
		89	struct aio_cb grp, grp_prev, grp_next, grp_first;
69	} aio_cb;	90	} aio_cb;
70		91
		92	enum {
		93	FLAG_CANCELLED = 0x01,
		94	};
		95
71	typedef aio_cb *aio_req;	96	typedef aio_cb *aio_req;
		97	typedef aio_cb *aio_req_ornot;
		98
		99	enum {
		100	PRI_MIN = -4,
		101	PRI_MAX = 4,
		102
		103	DEFAULT_PRI = 0,
		104	PRI_BIAS = -PRI_MIN,
		105	};
		106
		107	static int next_pri = DEFAULT_PRI + PRI_BIAS;
72		108
73	static int started, wanted;	109	static int started, wanted;
74	static volatile int nreqs;	110	static volatile int nreqs;
75	static int max_outstanding = 1<<30;	111	static int max_outstanding = 1<<30;
76	static int respipe [2];	112	static int respipe [2];
…		…
80	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	116	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
81		117
82	static volatile aio_req reqs, reqe; /* queue start, queue end */	118	static volatile aio_req reqs, reqe; /* queue start, queue end */
83	static volatile aio_req ress, rese; /* queue start, queue end */	119	static volatile aio_req ress, rese; /* queue start, queue end */
84		120
		121	static void req_invoke (aio_req req);
85	static void free_req (aio_req req)	122	static void req_free (aio_req req);
86	{
87	if (req->data)
88	SvREFCNT_dec (req->data);
89		123
		124	/* must be called at most once */
		125	static SV req_sv (aio_req req, const char klass)
		126	{
90	if (req->fh)	127	if (!req->self)
91	SvREFCNT_dec (req->fh);	128	{
		129	req->self = (SV *)newHV ();
		130	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
		131	}
92		132
93	if (req->fh2)	133	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
		134	}
		135
		136	static aio_req SvAIO_REQ (SV *sv)
		137	{
		138	MAGIC *mg;
		139
		140	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))
		141	croak ("object of class " AIO_REQ_KLASS " expected");
		142
		143	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
		144
		145	return mg ? (aio_req)mg->mg_ptr : 0;
		146	}
		147
		148	static void aio_grp_feed (aio_req grp)
		149	{
		150	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))
		151	{
		152	int old_len = grp->length;
		153
		154	if (grp->fh2 && SvOK (grp->fh2))
		155	{
		156	dSP;
		157
		158	ENTER;
		159	SAVETMPS;
		160	PUSHMARK (SP);
		161	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
		162	PUTBACK;
		163	call_sv (grp->fh2, G_VOID \| G_EVAL);
		164	SPAGAIN;
		165	FREETMPS;
		166	LEAVE;
		167	}
		168
		169	/* stop if no progress has been made */
		170	if (old_len == grp->length)
		171	{
94	SvREFCNT_dec (req->fh2);	172	SvREFCNT_dec (grp->fh2);
95		173	grp->fh2 = 0;
96	if (req->statdata)	174	break;
97	Safefree (req->statdata);	175	}
98
99	if (req->callback)
100	SvREFCNT_dec (req->callback);
101
102	Safefree (req);
103	}
104
105	static void
106	poll_wait ()
107	{
108	if (nreqs && !ress)
109	{	176	}
		177	}
		178
		179	static void aio_grp_dec (aio_req grp)
		180	{
		181	--grp->length;
		182
		183	/* call feeder, if applicable */
		184	aio_grp_feed (grp);
		185
		186	/* finish, if done */
		187	if (!grp->length && grp->fd)
		188	{
		189	req_invoke (grp);
		190	req_free (grp);
		191	}
		192	}
		193
		194	static void poll_wait ()
		195	{
110	fd_set rfd;	196	fd_set rfd;
		197
		198	while (nreqs)
		199	{
		200	aio_req req;
		201	pthread_mutex_lock (&reslock);
		202	req = ress;
		203	pthread_mutex_unlock (&reslock);
		204
		205	if (req)
		206	return;
		207
111	FD_ZERO(&rfd);	208	FD_ZERO(&rfd);
112	FD_SET(respipe [0], &rfd);	209	FD_SET(respipe [0], &rfd);
113		210
114	select (respipe [0] + 1, &rfd, 0, 0, 0);	211	select (respipe [0] + 1, &rfd, 0, 0, 0);
115	}	212	}
116	}	213	}
117		214
118	static int	215	static void req_invoke (aio_req req)
119	poll_cb ()	216	{
		217	dSP;
		218	int errorno = errno;
		219
		220	if (req->flags & FLAG_CANCELLED \|\| !SvOK (req->callback))
		221	return;
		222
		223	errno = req->errorno;
		224
		225	ENTER;
		226	SAVETMPS;
		227	PUSHMARK (SP);
		228	EXTEND (SP, 1);
		229
		230	switch (req->type)
		231	{
		232	case REQ_READDIR:
		233	{
		234	SV *rv = &PL_sv_undef;
		235
		236	if (req->result >= 0)
		237	{
		238	char *buf = req->data2ptr;
		239	AV *av = newAV ();
		240
		241	while (req->result)
		242	{
		243	SV *sv = newSVpv (buf, 0);
		244
		245	av_push (av, sv);
		246	buf += SvCUR (sv) + 1;
		247	req->result--;
		248	}
		249
		250	rv = sv_2mortal (newRV_noinc ((SV *)av));
		251	}
		252
		253	PUSHs (rv);
		254	}
		255	break;
		256
		257	case REQ_OPEN:
		258	{
		259	/* convert fd to fh */
		260	SV *fh;
		261
		262	PUSHs (sv_2mortal (newSViv (req->result)));
		263	PUTBACK;
		264	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
		265	SPAGAIN;
		266
		267	fh = SvREFCNT_inc (POPs);
		268
		269	PUSHMARK (SP);
		270	XPUSHs (sv_2mortal (fh));
		271	}
		272	break;
		273
		274	case REQ_GROUP:
		275	req->fd = 2; /* mark group as finished */
		276
		277	if (req->data)
		278	{
		279	int i;
		280	AV av = (AV )req->data;
		281
		282	EXTEND (SP, AvFILL (av) + 1);
		283	for (i = 0; i <= AvFILL (av); ++i)
		284	PUSHs (*av_fetch (av, i, 0));
		285	}
		286	break;
		287
		288	case REQ_NOP:
		289	case REQ_SLEEP:
		290	break;
		291
		292	default:
		293	PUSHs (sv_2mortal (newSViv (req->result)));
		294	break;
		295	}
		296
		297
		298	PUTBACK;
		299	call_sv (req->callback, G_VOID \| G_EVAL);
		300	SPAGAIN;
		301
		302	FREETMPS;
		303	LEAVE;
		304
		305	errno = errorno;
		306
		307	if (SvTRUE (ERRSV))
		308	{
		309	req_free (req);
		310	croak (0);
		311	}
		312	}
		313
		314	static void req_free (aio_req req)
		315	{
		316	if (req->grp)
		317	{
		318	aio_req grp = req->grp;
		319
		320	/* unlink request */
		321	if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
		322	if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
		323
		324	if (grp->grp_first == req)
		325	grp->grp_first = req->grp_next;
		326
		327	aio_grp_dec (grp);
		328	}
		329
		330	if (req->self)
		331	{
		332	sv_unmagic (req->self, PERL_MAGIC_ext);
		333	SvREFCNT_dec (req->self);
		334	}
		335
		336	SvREFCNT_dec (req->data);
		337	SvREFCNT_dec (req->fh);
		338	SvREFCNT_dec (req->fh2);
		339	SvREFCNT_dec (req->callback);
		340	Safefree (req->statdata);
		341
		342	if (req->type == REQ_READDIR && req->result >= 0)
		343	free (req->data2ptr);
		344
		345	Safefree (req);
		346	}
		347
		348	static void req_cancel (aio_req req)
		349	{
		350	req->flags \|= FLAG_CANCELLED;
		351
		352	if (req->type == REQ_GROUP)
		353	{
		354	aio_req sub;
		355
		356	for (sub = req->grp_first; sub; sub = sub->grp_next)
		357	req_cancel (sub);
		358	}
		359	}
		360
		361	static int poll_cb ()
120	{	362	{
121	dSP;	363	dSP;
122	int count = 0;	364	int count = 0;
123	int do_croak = 0;	365	int do_croak = 0;
124	aio_req req;	366	aio_req req;
…		…
146	pthread_mutex_unlock (&reslock);	388	pthread_mutex_unlock (&reslock);
147		389
148	if (!req)	390	if (!req)
149	break;	391	break;
150		392
151	nreqs--;	393	--nreqs;
152		394
153	if (req->type == REQ_QUIT)	395	if (req->type == REQ_QUIT)
154	started--;	396	started--;
		397	else if (req->type == REQ_GROUP && req->length)
		398	{
		399	req->fd = 1; /* mark request as delayed */
		400	continue;
		401	}
155	else	402	else
156	{	403	{
157	int errorno = errno;
158	errno = req->errorno;
159
160	if (req->type == REQ_READ)	404	if (req->type == REQ_READ)
161	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));	405	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
162		406
163	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))	407	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
164	SvREADONLY_off (req->data);	408	SvREADONLY_off (req->data);
…		…
168	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	412	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
169	PL_laststatval = req->result;	413	PL_laststatval = req->result;
170	PL_statcache = *(req->statdata);	414	PL_statcache = *(req->statdata);
171	}	415	}
172		416
173	ENTER;	417	req_invoke (req);
174	PUSHMARK (SP);
175	XPUSHs (sv_2mortal (newSViv (req->result)));
176		418
177	if (req->type == REQ_OPEN)
178	{
179	/* convert fd to fh */
180	SV *fh;
181
182	PUTBACK;
183	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
184	SPAGAIN;
185
186	fh = SvREFCNT_inc (POPs);
187
188	PUSHMARK (SP);
189	XPUSHs (sv_2mortal (fh));
190	}
191
192	if (SvOK (req->callback))
193	{
194	PUTBACK;
195	call_sv (req->callback, G_VOID \| G_EVAL);
196	SPAGAIN;
197
198	if (SvTRUE (ERRSV))
199	{
200	free_req (req);
201	croak (0);
202	}
203	}
204
205	LEAVE;
206
207	errno = errorno;
208	count++;	419	count++;
209	}	420	}
210		421
211	free_req (req);	422	req_free (req);
212	}	423	}
213		424
214	return count;	425	return count;
215	}	426	}
216		427
217	static void aio_proc(void arg);	428	static void aio_proc(void arg);
218		429
219	static void
220	start_thread (void)	430	static void start_thread (void)
221	{	431	{
222	sigset_t fullsigset, oldsigset;	432	sigset_t fullsigset, oldsigset;
223	pthread_t tid;	433	pthread_t tid;
224	pthread_attr_t attr;	434	pthread_attr_t attr;
225		435
…		…
234	started++;	444	started++;
235		445
236	sigprocmask (SIG_SETMASK, &oldsigset, 0);	446	sigprocmask (SIG_SETMASK, &oldsigset, 0);
237	}	447	}
238		448
239	static void	449	static void req_send (aio_req req)
240	send_req (aio_req req)
241	{	450	{
242	while (started < wanted && nreqs >= started)	451	while (started < wanted && nreqs >= started)
243	start_thread ();	452	start_thread ();
244		453
245	nreqs++;	454	++nreqs;
246		455
247	pthread_mutex_lock (&reqlock);	456	pthread_mutex_lock (&reqlock);
248		457
249	req->next = 0;	458	req->next = 0;
250		459
…		…
269		478
270	poll_wait ();	479	poll_wait ();
271	}	480	}
272	}	481	}
273		482
274	static void	483	static void end_thread (void)
275	end_thread (void)
276	{	484	{
277	aio_req req;	485	aio_req req;
278	Newz (0, req, 1, aio_cb);	486	Newz (0, req, 1, aio_cb);
279	req->type = REQ_QUIT;	487	req->type = REQ_QUIT;
280		488
281	send_req (req);	489	req_send (req);
282	}	490	}
283		491
284	static void min_parallel (int nthreads)	492	static void min_parallel (int nthreads)
285	{	493	{
286	if (wanted < nthreads)	494	if (wanted < nthreads)
…		…
315	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))	523	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
316	croak ("cannot set result pipe to nonblocking mode");	524	croak ("cannot set result pipe to nonblocking mode");
317		525
318	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))	526	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
319	croak ("cannot set result pipe to nonblocking mode");	527	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	{
336	aio_req prv;
337
338	started = 0;
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	}	528	}
364		529
365	/*****************************************************************************/	530	/*****************************************************************************/
366	/* work around various missing functions */	531	/* work around various missing functions */
367		532
…		…
372	/*	537	/*
373	* make our pread/pwrite safe against themselves, but not against	538	* make our pread/pwrite safe against themselves, but not against
374	* normal read/write by using a mutex. slows down execution a lot,	539	* normal read/write by using a mutex. slows down execution a lot,
375	* but that's your problem, not mine.	540	* but that's your problem, not mine.
376	*/	541	*/
377	static pthread_mutex_t iolock = PTHREAD_MUTEX_INITIALIZER;	542	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
378		543
379	static ssize_t	544	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
380	pread (int fd, void *buf, size_t count, off_t offset)
381	{	545	{
382	ssize_t res;	546	ssize_t res;
383	off_t ooffset;	547	off_t ooffset;
384		548
385	pthread_mutex_lock (&iolock);	549	pthread_mutex_lock (&preadwritelock);
386	ooffset = lseek (fd, 0, SEEK_CUR);	550	ooffset = lseek (fd, 0, SEEK_CUR);
387	lseek (fd, offset, SEEK_SET);	551	lseek (fd, offset, SEEK_SET);
388	res = read (fd, buf, count);	552	res = read (fd, buf, count);
389	lseek (fd, ooffset, SEEK_SET);	553	lseek (fd, ooffset, SEEK_SET);
390	pthread_mutex_unlock (&iolock);	554	pthread_mutex_unlock (&preadwritelock);
391		555
392	return res;	556	return res;
393	}	557	}
394		558
395	static ssize_t
396	pwrite (int fd, void *buf, size_t count, off_t offset)	559	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
397	{	560	{
398	ssize_t res;	561	ssize_t res;
399	off_t ooffset;	562	off_t ooffset;
400		563
401	pthread_mutex_lock (&iolock);	564	pthread_mutex_lock (&preadwritelock);
402	ooffset = lseek (fd, 0, SEEK_CUR);	565	ooffset = lseek (fd, 0, SEEK_CUR);
403	lseek (fd, offset, SEEK_SET);	566	lseek (fd, offset, SEEK_SET);
404	res = write (fd, buf, count);	567	res = write (fd, buf, count);
405	lseek (fd, offset, SEEK_SET);	568	lseek (fd, offset, SEEK_SET);
406	pthread_mutex_unlock (&iolock);	569	pthread_mutex_unlock (&preadwritelock);
407		570
408	return res;	571	return res;
409	}	572	}
410	#endif	573	#endif
411		574
…		…
414	#endif	577	#endif
415		578
416	#if !HAVE_READAHEAD	579	#if !HAVE_READAHEAD
417	# define readahead aio_readahead	580	# define readahead aio_readahead
418		581
		582	static ssize_t readahead (int fd, off_t offset, size_t count)
		583	{
419	static char readahead_buf[4096];	584	char readahead_buf[4096];
420		585
421	static ssize_t
422	readahead (int fd, off_t offset, size_t count)
423	{
424	while (count > 0)	586	while (count > 0)
425	{	587	{
426	size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);	588	size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
427		589
428	pread (fd, readahead_buf, len, offset);	590	pread (fd, readahead_buf, len, offset);
…		…
432		594
433	errno = 0;	595	errno = 0;
434	}	596	}
435	#endif	597	#endif
436		598
		599	#if !HAVE_READDIR_R
		600	# define readdir_r aio_readdir_r
		601
		602	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
		603
		604	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)
		605	{
		606	struct dirent *e;
		607	int errorno;
		608
		609	pthread_mutex_lock (&readdirlock);
		610
		611	e = readdir (dirp);
		612	errorno = errno;
		613
		614	if (e)
		615	{
		616	*res = ent;
		617	strcpy (ent->d_name, e->d_name);
		618	}
		619	else
		620	*res = 0;
		621
		622	pthread_mutex_unlock (&readdirlock);
		623
		624	errno = errorno;
		625	return e ? 0 : -1;
		626	}
		627	#endif
		628
437	/* sendfile always needs emulation */	629	/* sendfile always needs emulation */
438	static ssize_t
439	sendfile_ (int ofd, int ifd, off_t offset, size_t count)	630	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
440	{	631	{
441	ssize_t res;	632	ssize_t res;
442		633
443	if (!count)	634	if (!count)
444	return 0;	635	return 0;
445		636
446	#if HAVE_SENDFILE	637	#if HAVE_SENDFILE
447	# if __linux	638	# if __linux
448	res = sendfile (ofd, ifd, &offset, count);	639	res = sendfile (ofd, ifd, &offset, count);
449		640
450	# elif __freebsd	641	# elif __freebsd
451	/*	642	/*
452	* Of course, the freebsd sendfile is a dire hack with no thoughts	643	* Of course, the freebsd sendfile is a dire hack with no thoughts
453	* wasted on making it similar to other I/O functions.	644	* wasted on making it similar to other I/O functions.
454	*/	645	*/
455	{	646	{
456	off_t sbytes;	647	off_t sbytes;
457	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);	648	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
458		649
459	if (res < 0 && sbytes)	650	if (res < 0 && sbytes)
460	/* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */	651	/* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
461	res = sbytes;	652	res = sbytes;
462	}	653	}
463		654
464	# elif __hpux	655	# elif __hpux
465	res = sendfile (ofd, ifd, offset, count, 0, 0);	656	res = sendfile (ofd, ifd, offset, count, 0, 0);
466		657
467	# elif __solaris	658	# elif __solaris
468	{	659	{
469	struct sendfilevec vec;	660	struct sendfilevec vec;
470	size_t sbytes;	661	size_t sbytes;
471		662
472	vec.sfv_fd = ifd;	663	vec.sfv_fd = ifd;
473	vec.sfv_flag = 0;	664	vec.sfv_flag = 0;
474	vec.sfv_off = offset;	665	vec.sfv_off = offset;
475	vec.sfv_len = count;	666	vec.sfv_len = count;
476		667
477	res = sendfilev (ofd, &vec, 1, &sbytes);	668	res = sendfilev (ofd, &vec, 1, &sbytes);
478		669
479	if (res < 0 && sbytes)	670	if (res < 0 && sbytes)
480	res = sbytes;	671	res = sbytes;
481	}	672	}
482		673
483	# else
484	res = -1;
485	errno = ENOSYS;
486	# endif	674	# endif
		675	#else
		676	res = -1;
		677	errno = ENOSYS;
487	#endif	678	#endif
488		679
489	if (res < 0	680	if (res < 0
490	&& (errno == ENOSYS \|\| errno == EINVAL \|\| errno == ENOTSOCK	681	&& (errno == ENOSYS \|\| errno == EINVAL \|\| errno == ENOTSOCK
491	#if __solaris	682	#if __solaris
492	\|\| errno == EAFNOSUPPORT \|\| errno == EPROTOTYPE	683	\|\| errno == EAFNOSUPPORT \|\| errno == EPROTOTYPE
493	#endif	684	#endif
494	)	685	)
495	)	686	)
496	{	687	{
497	/* emulate sendfile. this is a major pain in the ass */	688	/* emulate sendfile. this is a major pain in the ass */
498	char *buf = malloc (4096);	689	char buf[4096];
499	res = 0;	690	res = 0;
500		691
501	for (;;)	692	while (count)
502	{	693	{
503	ssize_t cnt;	694	ssize_t cnt;
504		695
505	cnt = pread (ifd, buf, 4096, offset);	696	cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
506		697
507	if (cnt <= 0)	698	if (cnt <= 0)
508	{	699	{
509	if (cnt && !res) res = -1;	700	if (cnt && !res) res = -1;
510	break;	701	break;
511	}	702	}
512		703
513	cnt = write (ofd, buf, cnt);	704	cnt = write (ofd, buf, cnt);
514		705
515	if (cnt <= 0)	706	if (cnt <= 0)
516	{	707	{
517	if (cnt && !res) res = -1;	708	if (cnt && !res) res = -1;
518	break;	709	break;
519	}	710	}
520		711
521	offset += cnt;	712	offset += cnt;
522	res += cnt;	713	res += cnt;
		714	count -= cnt;
523	}	715	}
524
525	{
526	int errorno = errno;
527	free (buf);
528	errno = errorno;
529	}
530	}	716	}
531		717
532	return res;	718	return res;
		719	}
		720
		721	/* read a full directory */
		722	static int scandir_ (const char path, void *namesp)
		723	{
		724	DIR *dirp = opendir (path);
		725	union
		726	{
		727	struct dirent d;
		728	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
		729	} u;
		730	struct dirent *entp;
		731	char name, names;
		732	int memlen = 4096;
		733	int memofs = 0;
		734	int res = 0;
		735	int errorno;
		736
		737	if (!dirp)
		738	return -1;
		739
		740	names = malloc (memlen);
		741
		742	for (;;)
		743	{
		744	errno = 0, readdir_r (dirp, &u.d, &entp);
		745
		746	if (!entp)
		747	break;
		748
		749	name = entp->d_name;
		750
		751	if (name [0] != '.' \|\| (name [1] && (name [1] != '.' \|\| name [2])))
		752	{
		753	int len = strlen (name) + 1;
		754
		755	res++;
		756
		757	while (memofs + len > memlen)
		758	{
		759	memlen *= 2;
		760	names = realloc (names, memlen);
		761	if (!names)
		762	break;
		763	}
		764
		765	memcpy (names + memofs, name, len);
		766	memofs += len;
		767	}
		768	}
		769
		770	errorno = errno;
		771	closedir (dirp);
		772
		773	if (errorno)
		774	{
		775	free (names);
		776	errno = errorno;
		777	res = -1;
		778	}
		779
		780	namesp = (void )names;
		781	return res;
533	}	782	}
534		783
535	/*****************************************************************************/	784	/*****************************************************************************/
536		785
537	static void *
538	aio_proc (void *thr_arg)	786	static void aio_proc (void thr_arg)
539	{	787	{
540	aio_req req;	788	aio_req req;
541	int type;	789	int type;
542		790
543	do	791	do
…		…
561	}	809	}
562		810
563	pthread_mutex_unlock (&reqlock);	811	pthread_mutex_unlock (&reqlock);
564		812
565	errno = 0; /* strictly unnecessary */	813	errno = 0; /* strictly unnecessary */
		814	type = req->type; /* remember type for QUIT check */
566		815
567	type = req->type;	816	if (!(req->flags & FLAG_CANCELLED))
568
569	switch (type)	817	switch (type)
570	{	818	{
571	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	819	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
572	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	820	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
573		821
574	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	822	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
575	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;	823	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
576		824
577	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	825	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
578	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	826	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
579	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	827	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
580		828
581	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	829	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
582	case REQ_CLOSE: req->result = close (req->fd); break;	830	case REQ_CLOSE: req->result = close (req->fd); break;
583	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	831	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
584	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	832	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
		833	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
		834	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
585	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	835	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
586		836
587	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	837	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
588	case REQ_FSYNC: req->result = fsync (req->fd); break;	838	case REQ_FSYNC: req->result = fsync (req->fd); break;
		839	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
589		840
		841	case REQ_SLEEP:
		842	{
		843	struct timeval tv;
		844
		845	tv.tv_sec = req->fd;
		846	tv.tv_usec = req->fd2;
		847
		848	req->result = select (0, 0, 0, 0, &tv);
		849	}
		850
		851	case REQ_GROUP:
		852	case REQ_NOP:
590	case REQ_QUIT:	853	case REQ_QUIT:
591	break;	854	break;
592		855
593	default:	856	default:
594	req->result = ENOSYS;	857	req->result = ENOSYS;
595	break;	858	break;
596	}	859	}
597		860
598	req->errorno = errno;	861	req->errorno = errno;
599		862
600	pthread_mutex_lock (&reslock);	863	pthread_mutex_lock (&reslock);
601		864
…		…
619	while (type != REQ_QUIT);	882	while (type != REQ_QUIT);
620		883
621	return 0;	884	return 0;
622	}	885	}
623		886
		887	/*****************************************************************************/
		888
		889	static void atfork_prepare (void)
		890	{
		891	pthread_mutex_lock (&reqlock);
		892	pthread_mutex_lock (&reslock);
		893	#if !HAVE_PREADWRITE
		894	pthread_mutex_lock (&preadwritelock);
		895	#endif
		896	#if !HAVE_READDIR_R
		897	pthread_mutex_lock (&readdirlock);
		898	#endif
		899	}
		900
		901	static void atfork_parent (void)
		902	{
		903	#if !HAVE_READDIR_R
		904	pthread_mutex_unlock (&readdirlock);
		905	#endif
		906	#if !HAVE_PREADWRITE
		907	pthread_mutex_unlock (&preadwritelock);
		908	#endif
		909	pthread_mutex_unlock (&reslock);
		910	pthread_mutex_unlock (&reqlock);
		911	}
		912
		913	static void atfork_child (void)
		914	{
		915	aio_req prv;
		916
		917	started = 0;
		918
		919	while (reqs)
		920	{
		921	prv = reqs;
		922	reqs = prv->next;
		923	req_free (prv);
		924	}
		925
		926	reqs = reqe = 0;
		927
		928	while (ress)
		929	{
		930	prv = ress;
		931	ress = prv->next;
		932	req_free (prv);
		933	}
		934
		935	ress = rese = 0;
		936
		937	close (respipe [0]);
		938	close (respipe [1]);
		939	create_pipe ();
		940
		941	atfork_parent ();
		942	}
		943
624	#define dREQ \	944	#define dREQ \
625	aio_req req; \	945	aio_req req; \
		946	int req_pri = next_pri; \
		947	next_pri = DEFAULT_PRI + PRI_BIAS; \
626	\	948	\
627	if (SvOK (callback) && !SvROK (callback)) \	949	if (SvOK (callback) && !SvROK (callback)) \
628	croak ("clalback must be undef or of reference type"); \	950	croak ("callback must be undef or of reference type"); \
629	\	951	\
630	Newz (0, req, 1, aio_cb); \	952	Newz (0, req, 1, aio_cb); \
631	if (!req) \	953	if (!req) \
632	croak ("out of memory during aio_req allocation"); \	954	croak ("out of memory during aio_req allocation"); \
633	\	955	\
634	req->callback = newSVsv (callback);	956	req->callback = newSVsv (callback); \
		957	req->pri = req_pri
		958
		959	#define REQ_SEND \
		960	req_send (req); \
		961	\
		962	if (GIMME_V != G_VOID) \
		963	XPUSHs (req_sv (req, AIO_REQ_KLASS));
635		964
636	MODULE = IO::AIO PACKAGE = IO::AIO	965	MODULE = IO::AIO PACKAGE = IO::AIO
637		966
638	PROTOTYPES: ENABLE	967	PROTOTYPES: ENABLE
639		968
640	BOOT:	969	BOOT:
641	{	970	{
		971	HV *stash = gv_stashpv ("IO::AIO", 1);
		972	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
		973	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
		974	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
		975
642	create_pipe ();	976	create_pipe ();
643	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	977	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
644	}	978	}
645		979
646	void	980	void
647	min_parallel(nthreads)	981	min_parallel (nthreads)
648	int nthreads	982	int nthreads
649	PROTOTYPE: $	983	PROTOTYPE: $
650		984
651	void	985	void
652	max_parallel(nthreads)	986	max_parallel (nthreads)
653	int nthreads	987	int nthreads
654	PROTOTYPE: $	988	PROTOTYPE: $
655		989
656	int	990	int
657	max_outstanding(nreqs)	991	max_outstanding (nreqs)
658	int nreqs	992	int nreqs
659	PROTOTYPE: $	993	PROTOTYPE: $
660	CODE:	994	CODE:
661	RETVAL = max_outstanding;	995	RETVAL = max_outstanding;
662	max_outstanding = nreqs;	996	max_outstanding = nreqs;
663		997
664	void	998	void
665	aio_open(pathname,flags,mode,callback=&PL_sv_undef)	999	aio_open (pathname,flags,mode,callback=&PL_sv_undef)
666	SV * pathname	1000	SV * pathname
667	int flags	1001	int flags
668	int mode	1002	int mode
669	SV * callback	1003	SV * callback
670	PROTOTYPE: $$$;$	1004	PROTOTYPE: $$$;$
671	CODE:	1005	PPCODE:
672	{	1006	{
673	dREQ;	1007	dREQ;
674		1008
675	req->type = REQ_OPEN;	1009	req->type = REQ_OPEN;
676	req->data = newSVsv (pathname);	1010	req->data = newSVsv (pathname);
677	req->dataptr = SvPVbyte_nolen (req->data);	1011	req->dataptr = SvPVbyte_nolen (req->data);
678	req->fd = flags;	1012	req->fd = flags;
679	req->mode = mode;	1013	req->mode = mode;
680		1014
681	send_req (req);	1015	REQ_SEND;
682	}	1016	}
683		1017
684	void	1018	void
685	aio_close(fh,callback=&PL_sv_undef)	1019	aio_close (fh,callback=&PL_sv_undef)
686	SV * fh	1020	SV * fh
687	SV * callback	1021	SV * callback
688	PROTOTYPE: $;$	1022	PROTOTYPE: $;$
689	ALIAS:	1023	ALIAS:
690	aio_close = REQ_CLOSE	1024	aio_close = REQ_CLOSE
691	aio_fsync = REQ_FSYNC	1025	aio_fsync = REQ_FSYNC
692	aio_fdatasync = REQ_FDATASYNC	1026	aio_fdatasync = REQ_FDATASYNC
693	CODE:	1027	PPCODE:
694	{	1028	{
695	dREQ;	1029	dREQ;
696		1030
697	req->type = ix;	1031	req->type = ix;
698	req->fh = newSVsv (fh);	1032	req->fh = newSVsv (fh);
699	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1033	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
700		1034
701	send_req (req);	1035	REQ_SEND (req);
702	}	1036	}
703		1037
704	void	1038	void
705	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1039	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
706	SV * fh	1040	SV * fh
707	UV offset	1041	UV offset
708	UV length	1042	UV length
709	SV * data	1043	SV * data
710	UV dataoffset	1044	UV dataoffset
711	SV * callback	1045	SV * callback
712	ALIAS:	1046	ALIAS:
713	aio_read = REQ_READ	1047	aio_read = REQ_READ
714	aio_write = REQ_WRITE	1048	aio_write = REQ_WRITE
715	PROTOTYPE: $$$$$;$	1049	PROTOTYPE: $$$$$;$
716	CODE:	1050	PPCODE:
717	{	1051	{
718	aio_req req;	1052	aio_req req;
719	STRLEN svlen;	1053	STRLEN svlen;
720	char *svptr = SvPVbyte (data, svlen);	1054	char *svptr = SvPVbyte (data, svlen);
721		1055
…		…
759	{	1093	{
760	SvREADONLY_on (data);	1094	SvREADONLY_on (data);
761	req->data2ptr = (void *)data;	1095	req->data2ptr = (void *)data;
762	}	1096	}
763		1097
764	send_req (req);	1098	REQ_SEND;
765	}	1099	}
766	}	1100	}
767		1101
768	void	1102	void
769	aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1103	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
770	SV * out_fh	1104	SV * out_fh
771	SV * in_fh	1105	SV * in_fh
772	UV in_offset	1106	UV in_offset
773	UV length	1107	UV length
774	SV * callback	1108	SV * callback
775	PROTOTYPE: $$$$;$	1109	PROTOTYPE: $$$$;$
776	CODE:	1110	PPCODE:
777	{	1111	{
778	dREQ;	1112	dREQ;
779		1113
780	req->type = REQ_SENDFILE;	1114	req->type = REQ_SENDFILE;
781	req->fh = newSVsv (out_fh);	1115	req->fh = newSVsv (out_fh);
…		…
783	req->fh2 = newSVsv (in_fh);	1117	req->fh2 = newSVsv (in_fh);
784	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1118	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
785	req->offset = in_offset;	1119	req->offset = in_offset;
786	req->length = length;	1120	req->length = length;
787		1121
788	send_req (req);	1122	REQ_SEND;
789	}	1123	}
790		1124
791	void	1125	void
792	aio_readahead(fh,offset,length,callback=&PL_sv_undef)	1126	aio_readahead (fh,offset,length,callback=&PL_sv_undef)
793	SV * fh	1127	SV * fh
794	UV offset	1128	UV offset
795	IV length	1129	IV length
796	SV * callback	1130	SV * callback
797	PROTOTYPE: $$$;$	1131	PROTOTYPE: $$$;$
798	CODE:	1132	PPCODE:
799	{	1133	{
800	dREQ;	1134	dREQ;
801		1135
802	req->type = REQ_READAHEAD;	1136	req->type = REQ_READAHEAD;
803	req->fh = newSVsv (fh);	1137	req->fh = newSVsv (fh);
804	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1138	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
805	req->offset = offset;	1139	req->offset = offset;
806	req->length = length;	1140	req->length = length;
807		1141
808	send_req (req);	1142	REQ_SEND;
809	}	1143	}
810		1144
811	void	1145	void
812	aio_stat(fh_or_path,callback=&PL_sv_undef)	1146	aio_stat (fh_or_path,callback=&PL_sv_undef)
813	SV * fh_or_path	1147	SV * fh_or_path
814	SV * callback	1148	SV * callback
815	ALIAS:	1149	ALIAS:
816	aio_stat = REQ_STAT	1150	aio_stat = REQ_STAT
817	aio_lstat = REQ_LSTAT	1151	aio_lstat = REQ_LSTAT
818	CODE:	1152	PPCODE:
819	{	1153	{
820	dREQ;	1154	dREQ;
821		1155
822	New (0, req->statdata, 1, Stat_t);	1156	New (0, req->statdata, 1, Stat_t);
823	if (!req->statdata)	1157	if (!req->statdata)
824	{	1158	{
825	free_req (req);	1159	req_free (req);
826	croak ("out of memory during aio_req->statdata allocation");	1160	croak ("out of memory during aio_req->statdata allocation");
827	}	1161	}
828		1162
829	if (SvPOK (fh_or_path))	1163	if (SvPOK (fh_or_path))
830	{	1164	{
…		…
837	req->type = REQ_FSTAT;	1171	req->type = REQ_FSTAT;
838	req->fh = newSVsv (fh_or_path);	1172	req->fh = newSVsv (fh_or_path);
839	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1173	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
840	}	1174	}
841		1175
842	send_req (req);	1176	REQ_SEND;
843	}	1177	}
844		1178
845	void	1179	void
846	aio_unlink(pathname,callback=&PL_sv_undef)	1180	aio_unlink (pathname,callback=&PL_sv_undef)
847	SV * pathname	1181	SV * pathname
848	SV * callback	1182	SV * callback
849	ALIAS:	1183	ALIAS:
850	aio_unlink = REQ_UNLINK	1184	aio_unlink = REQ_UNLINK
851	aio_rmdir = REQ_RMDIR	1185	aio_rmdir = REQ_RMDIR
		1186	aio_readdir = REQ_READDIR
852	CODE:	1187	PPCODE:
853	{	1188	{
854	dREQ;	1189	dREQ;
855		1190
856	req->type = ix;	1191	req->type = ix;
857	req->data = newSVsv (pathname);	1192	req->data = newSVsv (pathname);
858	req->dataptr = SvPVbyte_nolen (req->data);	1193	req->dataptr = SvPVbyte_nolen (req->data);
859		1194
860	send_req (req);	1195	REQ_SEND;
861	}	1196	}
862		1197
863	void	1198	void
864	aio_symlink(oldpath,newpath,callback=&PL_sv_undef)	1199	aio_link (oldpath,newpath,callback=&PL_sv_undef)
865	SV * oldpath	1200	SV * oldpath
866	SV * newpath	1201	SV * newpath
867	SV * callback	1202	SV * callback
		1203	ALIAS:
		1204	aio_link = REQ_LINK
		1205	aio_symlink = REQ_SYMLINK
		1206	aio_rename = REQ_RENAME
868	CODE:	1207	PPCODE:
869	{	1208	{
870	dREQ;	1209	dREQ;
871		1210
872	req->type = REQ_SYMLINK;	1211	req->type = ix;
873	req->fh = newSVsv (oldpath);	1212	req->fh = newSVsv (oldpath);
874	req->data2ptr = SvPVbyte_nolen (req->fh);	1213	req->data2ptr = SvPVbyte_nolen (req->fh);
875	req->data = newSVsv (newpath);	1214	req->data = newSVsv (newpath);
876	req->dataptr = SvPVbyte_nolen (req->data);	1215	req->dataptr = SvPVbyte_nolen (req->data);
877		1216
878	send_req (req);	1217	REQ_SEND;
879	}	1218	}
880		1219
881	void	1220	void
		1221	aio_sleep (delay,callback=&PL_sv_undef)
		1222	double delay
		1223	SV * callback
		1224	PPCODE:
		1225	{
		1226	dREQ;
		1227
		1228	req->type = REQ_SLEEP;
		1229	req->fd = delay < 0. ? 0 : delay;
		1230	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
		1231
		1232	REQ_SEND;
		1233	}
		1234
		1235	void
		1236	aio_group (callback=&PL_sv_undef)
		1237	SV * callback
		1238	PROTOTYPE: ;$
		1239	PPCODE:
		1240	{
		1241	dREQ;
		1242
		1243	req->type = REQ_GROUP;
		1244	req_send (req);
		1245
		1246	XPUSHs (req_sv (req, AIO_GRP_KLASS));
		1247	}
		1248
		1249	void
		1250	aio_nop (callback=&PL_sv_undef)
		1251	SV * callback
		1252	PPCODE:
		1253	{
		1254	dREQ;
		1255
		1256	req->type = REQ_NOP;
		1257
		1258	REQ_SEND;
		1259	}
		1260
		1261	#if 0
		1262
		1263	void
		1264	aio_pri (int pri = DEFAULT_PRI)
		1265	CODE:
		1266	if (pri < PRI_MIN) pri = PRI_MIN;
		1267	if (pri > PRI_MAX) pri = PRI_MAX;
		1268	next_pri = pri + PRI_BIAS;
		1269
		1270	#endif
		1271
		1272	void
882	flush()	1273	flush ()
883	PROTOTYPE:	1274	PROTOTYPE:
884	CODE:	1275	CODE:
885	while (nreqs)	1276	while (nreqs)
886	{	1277	{
887	poll_wait ();	1278	poll_wait ();
…		…
927	CODE:	1318	CODE:
928	RETVAL = nreqs;	1319	RETVAL = nreqs;
929	OUTPUT:	1320	OUTPUT:
930	RETVAL	1321	RETVAL
931		1322
		1323	PROTOTYPES: DISABLE
		1324
		1325	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
		1326
		1327	void
		1328	cancel (aio_req_ornot req)
		1329	PROTOTYPE:
		1330	CODE:
		1331	req_cancel (req);
		1332
		1333	void
		1334	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
		1335	CODE:
		1336	SvREFCNT_dec (req->callback);
		1337	req->callback = newSVsv (callback);
		1338
		1339	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
		1340
		1341	void
		1342	add (aio_req grp, ...)
		1343	PPCODE:
		1344	{
		1345	int i;
		1346	aio_req req;
		1347
		1348	if (grp->fd == 2)
		1349	croak ("cannot add requests to IO::AIO::GRP after the group finished");
		1350
		1351	for (i = 1; i < items; ++i )
		1352	{
		1353	if (GIMME_V != G_VOID)
		1354	XPUSHs (sv_2mortal (newSVsv (ST (i))));
		1355
		1356	req = SvAIO_REQ (ST (i));
		1357
		1358	if (req)
		1359	{
		1360	++grp->length;
		1361	req->grp = grp;
		1362
		1363	req->grp_prev = 0;
		1364	req->grp_next = grp->grp_first;
		1365
		1366	if (grp->grp_first)
		1367	grp->grp_first->grp_prev = req;
		1368
		1369	grp->grp_first = req;
		1370	}
		1371	}
		1372	}
		1373
		1374	void
		1375	result (aio_req grp, ...)
		1376	CODE:
		1377	{
		1378	int i;
		1379	AV *av = newAV ();
		1380
		1381	for (i = 1; i < items; ++i )
		1382	av_push (av, newSVsv (ST (i)));
		1383
		1384	SvREFCNT_dec (grp->data);
		1385	grp->data = (SV *)av;
		1386	}
		1387
		1388	void
		1389	feed_limit (aio_req grp, int limit)
		1390	CODE:
		1391	grp->fd2 = limit;
		1392	aio_grp_feed (grp);
		1393
		1394	void
		1395	feed (aio_req grp, SV *callback=&PL_sv_undef)
		1396	CODE:
		1397	{
		1398	SvREFCNT_dec (grp->fh2);
		1399	grp->fh2 = newSVsv (callback);
		1400
		1401	if (grp->fd2 <= 0)
		1402	grp->fd2 = 2;
		1403
		1404	aio_grp_feed (grp);
		1405	}
		1406

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.36 by root, Tue Aug 23 01:18:04 2005 UTC vs. Revision 1.62 by root, Mon Oct 23 22:45:18 2006 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.36 by root, Tue Aug 23 01:18:04 2005 UTC vs.
Revision 1.62 by root, Mon Oct 23 22:45:18 2006 UTC