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

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.37 by root, Tue Aug 23 12:37:19 2005 UTC vs.
Revision 1.65 by root, Tue Oct 24 00:26:32 2006 UTC

…		…
		1	#if __linux
		2	# define _GNU_SOURCE
		3	#endif
		4
1	#define _REENTRANT 1	5	#define _REENTRANT 1
		6
2	#include <errno.h>	7	#include <errno.h>
3		8
4	#include "EXTERN.h"	9	#include "EXTERN.h"
5	#include "perl.h"	10	#include "perl.h"
6	#include "XSUB.h"	11	#include "XSUB.h"
8	#include "autoconf/config.h"	13	#include "autoconf/config.h"
9		14
10	#include <pthread.h>	15	#include <pthread.h>
11		16
12	#include <stddef.h>	17	#include <stddef.h>
		18	#include <errno.h>
		19	#include <sys/time.h>
		20	#include <sys/select.h>
13	#include <sys/types.h>	21	#include <sys/types.h>
14	#include <sys/stat.h>	22	#include <sys/stat.h>
15	#include <limits.h>	23	#include <limits.h>
16	#include <unistd.h>	24	#include <unistd.h>
17	#include <fcntl.h>	25	#include <fcntl.h>
…		…
31	# else	39	# else
32	# error sendfile support requested but not available	40	# error sendfile support requested but not available
33	# endif	41	# endif
34	#endif	42	#endif
35		43
		44	/* used for struct dirent, AIX doesn't provide it */
		45	#ifndef NAME_MAX
		46	# define NAME_MAX 4096
		47	#endif
		48
36	#if __ia64	49	#if __ia64
37	# define STACKSIZE 65536	50	# define STACKSIZE 65536
		51	#elif __i386 \|\| __x86_64 /* 16k is unreasonably high :( */
		52	# define STACKSIZE PTHREAD_STACK_MIN
38	#else	53	#else
39	# define STACKSIZE 8192	54	# define STACKSIZE 16384
40	#endif	55	#endif
		56
		57	/* buffer size for various temporary buffers */
		58	#define AIO_BUFSIZE 65536
		59
		60	#define dBUF \
		61	char *aio_buf = malloc (AIO_BUFSIZE); \
		62	if (!aio_buf) \
		63	return -1;
		64
		65	#define fBUF free (aio_buf)
41		66
42	enum {	67	enum {
43	REQ_QUIT,	68	REQ_QUIT,
44	REQ_OPEN, REQ_CLOSE,	69	REQ_OPEN, REQ_CLOSE,
45	REQ_READ, REQ_WRITE, REQ_READAHEAD,	70	REQ_READ, REQ_WRITE, REQ_READAHEAD,
46	REQ_SENDFILE,	71	REQ_SENDFILE,
47	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	72	REQ_STAT, REQ_LSTAT, REQ_FSTAT,
48	REQ_FSYNC, REQ_FDATASYNC,	73	REQ_FSYNC, REQ_FDATASYNC,
49	REQ_UNLINK, REQ_RMDIR,	74	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,
50	REQ_READDIR,	75	REQ_READDIR,
51	REQ_SYMLINK,	76	REQ_LINK, REQ_SYMLINK,
		77	REQ_GROUP, REQ_NOP,
		78	REQ_SLEEP,
52	};	79	};
53		80
		81	#define AIO_REQ_KLASS "IO::AIO::REQ"
		82	#define AIO_GRP_KLASS "IO::AIO::GRP"
		83
54	typedef struct aio_cb {	84	typedef struct aio_cb
		85	{
55	struct aio_cb *volatile next;	86	struct aio_cb *volatile next;
56		87
57	int type;	88	SV data, callback;
58		89	SV fh, fh2;
59	/* should receive a cleanup, with unions */	90	void dataptr, data2ptr;
60	int fd, fd2;	91	Stat_t *statdata;
61	off_t offset;	92	off_t offset;
62	size_t length;	93	size_t length;
63	ssize_t result;	94	ssize_t result;
		95
		96	STRLEN dataoffset;
		97	int type;
		98	int fd, fd2;
		99	int errorno;
64	mode_t mode; /* open */	100	mode_t mode; /* open */
65	int errorno;
66	SV data, callback;
67	SV fh, fh2;
68	void dataptr, data2ptr;
69	STRLEN dataoffset;
70		101
71	Stat_t *statdata;	102	unsigned char flags;
		103	unsigned char pri;
		104
		105	SV self; / the perl counterpart of this request, if any */
		106	struct aio_cb grp, grp_prev, grp_next, grp_first;
72	} aio_cb;	107	} aio_cb;
73		108
		109	enum {
		110	FLAG_CANCELLED = 0x01,
		111	};
		112
74	typedef aio_cb *aio_req;	113	typedef aio_cb *aio_req;
		114	typedef aio_cb *aio_req_ornot;
		115
		116	enum {
		117	PRI_MIN = -4,
		118	PRI_MAX = 4,
		119
		120	DEFAULT_PRI = 0,
		121	PRI_BIAS = -PRI_MIN,
		122	};
		123
		124	static int next_pri = DEFAULT_PRI + PRI_BIAS;
75		125
76	static int started, wanted;	126	static int started, wanted;
77	static volatile int nreqs;	127	static volatile int nreqs;
78	static int max_outstanding = 1<<30;	128	static int max_outstanding = 1<<30;
79	static int respipe [2];	129	static int respipe [2];
80		130
		131	#if __linux && defined (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP)
		132	# define AIO_MUTEX_INIT PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP
		133	#else
		134	# define AIO_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER
		135	#endif
		136
81	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	137	static pthread_mutex_t reslock = AIO_MUTEX_INIT;
82	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;	138	static pthread_mutex_t reqlock = AIO_MUTEX_INIT;
83	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;	139	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
84		140
85	static volatile aio_req reqs, reqe; /* queue start, queue end */	141	static volatile aio_req reqs, reqe; /* queue start, queue end */
86	static volatile aio_req ress, rese; /* queue start, queue end */	142	static volatile aio_req ress, rese; /* queue start, queue end */
87		143
		144	static void req_invoke (aio_req req);
		145	static void req_free (aio_req req);
		146
		147	/* must be called at most once */
		148	static SV req_sv (aio_req req, const char klass)
		149	{
		150	if (!req->self)
		151	{
		152	req->self = (SV *)newHV ();
		153	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
		154	}
		155
		156	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
		157	}
		158
		159	static aio_req SvAIO_REQ (SV *sv)
		160	{
		161	MAGIC *mg;
		162
		163	if (!sv_derived_from (sv, AIO_REQ_KLASS) \|\| !SvROK (sv))
		164	croak ("object of class " AIO_REQ_KLASS " expected");
		165
		166	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
		167
		168	return mg ? (aio_req)mg->mg_ptr : 0;
		169	}
		170
		171	static void aio_grp_feed (aio_req grp)
		172	{
		173	while (grp->length < grp->fd2 && !(grp->flags & FLAG_CANCELLED))
		174	{
		175	int old_len = grp->length;
		176
		177	if (grp->fh2 && SvOK (grp->fh2))
		178	{
		179	dSP;
		180
		181	ENTER;
		182	SAVETMPS;
		183	PUSHMARK (SP);
		184	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
		185	PUTBACK;
		186	call_sv (grp->fh2, G_VOID \| G_EVAL);
		187	SPAGAIN;
		188	FREETMPS;
		189	LEAVE;
		190	}
		191
		192	/* stop if no progress has been made */
		193	if (old_len == grp->length)
		194	{
		195	SvREFCNT_dec (grp->fh2);
		196	grp->fh2 = 0;
		197	break;
		198	}
		199	}
		200	}
		201
		202	static void aio_grp_dec (aio_req grp)
		203	{
		204	--grp->length;
		205
		206	/* call feeder, if applicable */
		207	aio_grp_feed (grp);
		208
		209	/* finish, if done */
		210	if (!grp->length && grp->fd)
		211	{
		212	req_invoke (grp);
		213	req_free (grp);
		214	}
		215	}
		216
		217	static void poll_wait ()
		218	{
		219	fd_set rfd;
		220
		221	while (nreqs)
		222	{
		223	aio_req req;
		224	#if !(__i386 \|\| __x86_64) /* safe without sempahore on this archs */
		225	pthread_mutex_lock (&reslock);
		226	#endif
		227	req = ress;
		228	#if !(__i386 \|\| __x86_64) /* safe without sempahore on this archs */
		229	pthread_mutex_unlock (&reslock);
		230	#endif
		231
		232	if (req)
		233	return;
		234
		235	FD_ZERO(&rfd);
		236	FD_SET(respipe [0], &rfd);
		237
		238	select (respipe [0] + 1, &rfd, 0, 0, 0);
		239	}
		240	}
		241
		242	static void req_invoke (aio_req req)
		243	{
		244	dSP;
		245	int errorno = errno;
		246
		247	if (req->flags & FLAG_CANCELLED \|\| !SvOK (req->callback))
		248	return;
		249
		250	errno = req->errorno;
		251
		252	ENTER;
		253	SAVETMPS;
		254	PUSHMARK (SP);
		255	EXTEND (SP, 1);
		256
		257	switch (req->type)
		258	{
		259	case REQ_READDIR:
		260	{
		261	SV *rv = &PL_sv_undef;
		262
		263	if (req->result >= 0)
		264	{
		265	char *buf = req->data2ptr;
		266	AV *av = newAV ();
		267
		268	while (req->result)
		269	{
		270	SV *sv = newSVpv (buf, 0);
		271
		272	av_push (av, sv);
		273	buf += SvCUR (sv) + 1;
		274	req->result--;
		275	}
		276
		277	rv = sv_2mortal (newRV_noinc ((SV *)av));
		278	}
		279
		280	PUSHs (rv);
		281	}
		282	break;
		283
		284	case REQ_OPEN:
		285	{
		286	/* convert fd to fh */
		287	SV *fh;
		288
		289	PUSHs (sv_2mortal (newSViv (req->result)));
		290	PUTBACK;
		291	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
		292	SPAGAIN;
		293
		294	fh = SvREFCNT_inc (POPs);
		295
		296	PUSHMARK (SP);
		297	XPUSHs (sv_2mortal (fh));
		298	}
		299	break;
		300
		301	case REQ_GROUP:
		302	req->fd = 2; /* mark group as finished */
		303
		304	if (req->data)
		305	{
		306	int i;
		307	AV av = (AV )req->data;
		308
		309	EXTEND (SP, AvFILL (av) + 1);
		310	for (i = 0; i <= AvFILL (av); ++i)
		311	PUSHs (*av_fetch (av, i, 0));
		312	}
		313	break;
		314
		315	case REQ_NOP:
		316	case REQ_SLEEP:
		317	break;
		318
		319	default:
		320	PUSHs (sv_2mortal (newSViv (req->result)));
		321	break;
		322	}
		323
		324
		325	PUTBACK;
		326	call_sv (req->callback, G_VOID \| G_EVAL);
		327	SPAGAIN;
		328
		329	FREETMPS;
		330	LEAVE;
		331
		332	errno = errorno;
		333
		334	if (SvTRUE (ERRSV))
		335	{
		336	req_free (req);
		337	croak (0);
		338	}
		339	}
		340
88	static void free_req (aio_req req)	341	static void req_free (aio_req req)
89	{	342	{
90	if (req->data)	343	if (req->grp)
		344	{
		345	aio_req grp = req->grp;
		346
		347	/* unlink request */
		348	if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
		349	if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
		350
		351	if (grp->grp_first == req)
		352	grp->grp_first = req->grp_next;
		353
		354	aio_grp_dec (grp);
		355	}
		356
		357	if (req->self)
		358	{
		359	sv_unmagic (req->self, PERL_MAGIC_ext);
		360	SvREFCNT_dec (req->self);
		361	}
		362
91	SvREFCNT_dec (req->data);	363	SvREFCNT_dec (req->data);
92
93	if (req->fh)
94	SvREFCNT_dec (req->fh);	364	SvREFCNT_dec (req->fh);
95
96	if (req->fh2)
97	SvREFCNT_dec (req->fh2);	365	SvREFCNT_dec (req->fh2);
98
99	if (req->statdata)
100	Safefree (req->statdata);
101
102	if (req->callback)
103	SvREFCNT_dec (req->callback);	366	SvREFCNT_dec (req->callback);
		367	Safefree (req->statdata);
104		368
105	if (req->type == REQ_READDIR && req->result >= 0)	369	if (req->type == REQ_READDIR && req->result >= 0)
106	free (req->data2ptr);	370	free (req->data2ptr);
107		371
108	Safefree (req);	372	Safefree (req);
109	}	373	}
110		374
111	static void	375	static void req_cancel (aio_req req)
112	poll_wait ()
113	{	376	{
114	if (nreqs && !ress)	377	req->flags \|= FLAG_CANCELLED;
115	{
116	fd_set rfd;
117	FD_ZERO(&rfd);
118	FD_SET(respipe [0], &rfd);
119		378
120	select (respipe [0] + 1, &rfd, 0, 0, 0);	379	if (req->type == REQ_GROUP)
121	}	380	{
122	}	381	aio_req sub;
123		382
124	static int	383	for (sub = req->grp_first; sub; sub = sub->grp_next)
125	poll_cb ()	384	req_cancel (sub);
		385	}
		386	}
		387
		388	static int poll_cb ()
126	{	389	{
127	dSP;	390	dSP;
128	int count = 0;	391	int count = 0;
129	int do_croak = 0;	392	int do_croak = 0;
130	aio_req req;	393	aio_req req;
…		…
152	pthread_mutex_unlock (&reslock);	415	pthread_mutex_unlock (&reslock);
153		416
154	if (!req)	417	if (!req)
155	break;	418	break;
156		419
157	nreqs--;	420	--nreqs;
158		421
159	if (req->type == REQ_QUIT)	422	if (req->type == REQ_QUIT)
160	started--;	423	started--;
		424	else if (req->type == REQ_GROUP && req->length)
		425	{
		426	req->fd = 1; /* mark request as delayed */
		427	continue;
		428	}
161	else	429	else
162	{	430	{
163	int errorno = errno;
164	errno = req->errorno;
165
166	if (req->type == REQ_READ)	431	if (req->type == REQ_READ)
167	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));	432	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
168		433
169	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))	434	if (req->data2ptr && (req->type == REQ_READ \|\| req->type == REQ_WRITE))
170	SvREADONLY_off (req->data);	435	SvREADONLY_off (req->data);
…		…
174	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;	439	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
175	PL_laststatval = req->result;	440	PL_laststatval = req->result;
176	PL_statcache = *(req->statdata);	441	PL_statcache = *(req->statdata);
177	}	442	}
178		443
179	ENTER;	444	req_invoke (req);
180	PUSHMARK (SP);
181		445
182	if (req->type == REQ_READDIR)
183	{
184	SV *rv = &PL_sv_undef;
185
186	if (req->result >= 0)
187	{
188	char *buf = req->data2ptr;
189	AV *av = newAV ();
190
191	while (req->result)
192	{
193	SV *sv = newSVpv (buf, 0);
194
195	av_push (av, sv);
196	buf += SvCUR (sv) + 1;
197	req->result--;
198	}
199
200	rv = sv_2mortal (newRV_noinc ((SV *)av));
201	}
202
203	XPUSHs (rv);
204	}
205	else
206	{
207	XPUSHs (sv_2mortal (newSViv (req->result)));
208
209	if (req->type == REQ_OPEN)
210	{
211	/* convert fd to fh */
212	SV *fh;
213
214	PUTBACK;
215	call_pv ("IO::AIO::_fd2fh", G_SCALAR \| G_EVAL);
216	SPAGAIN;
217
218	fh = SvREFCNT_inc (POPs);
219
220	PUSHMARK (SP);
221	XPUSHs (sv_2mortal (fh));
222	}
223	}
224
225	if (SvOK (req->callback))
226	{
227	PUTBACK;
228	call_sv (req->callback, G_VOID \| G_EVAL);
229	SPAGAIN;
230
231	if (SvTRUE (ERRSV))
232	{
233	free_req (req);
234	croak (0);
235	}
236	}
237
238	LEAVE;
239
240	errno = errorno;
241	count++;	446	count++;
242	}	447	}
243		448
244	free_req (req);	449	req_free (req);
245	}	450	}
246		451
247	return count;	452	return count;
248	}	453	}
249		454
250	static void aio_proc(void arg);	455	static void aio_proc(void arg);
251		456
252	static void
253	start_thread (void)	457	static void start_thread (void)
254	{	458	{
255	sigset_t fullsigset, oldsigset;	459	sigset_t fullsigset, oldsigset;
256	pthread_t tid;	460	pthread_t tid;
257	pthread_attr_t attr;	461	pthread_attr_t attr;
258		462
…		…
267	started++;	471	started++;
268		472
269	sigprocmask (SIG_SETMASK, &oldsigset, 0);	473	sigprocmask (SIG_SETMASK, &oldsigset, 0);
270	}	474	}
271		475
272	static void	476	static void req_send (aio_req req)
273	send_req (aio_req req)
274	{	477	{
275	while (started < wanted && nreqs >= started)	478	while (started < wanted && nreqs >= started)
276	start_thread ();	479	start_thread ();
277		480
278	nreqs++;	481	++nreqs;
279		482
280	pthread_mutex_lock (&reqlock);	483	pthread_mutex_lock (&reqlock);
281		484
282	req->next = 0;	485	req->next = 0;
283		486
…		…
302		505
303	poll_wait ();	506	poll_wait ();
304	}	507	}
305	}	508	}
306		509
307	static void	510	static void end_thread (void)
308	end_thread (void)
309	{	511	{
310	aio_req req;	512	aio_req req;
311	Newz (0, req, 1, aio_cb);	513	Newz (0, req, 1, aio_cb);
312	req->type = REQ_QUIT;	514	req->type = REQ_QUIT;
313		515
314	send_req (req);	516	req_send (req);
315	}	517	}
316		518
317	static void min_parallel (int nthreads)	519	static void min_parallel (int nthreads)
318	{	520	{
319	if (wanted < nthreads)	521	if (wanted < nthreads)
…		…
364	* normal read/write by using a mutex. slows down execution a lot,	566	* normal read/write by using a mutex. slows down execution a lot,
365	* but that's your problem, not mine.	567	* but that's your problem, not mine.
366	*/	568	*/
367	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;	569	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
368		570
369	static ssize_t	571	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
370	pread (int fd, void *buf, size_t count, off_t offset)
371	{	572	{
372	ssize_t res;	573	ssize_t res;
373	off_t ooffset;	574	off_t ooffset;
374		575
375	pthread_mutex_lock (&preadwritelock);	576	pthread_mutex_lock (&preadwritelock);
…		…
380	pthread_mutex_unlock (&preadwritelock);	581	pthread_mutex_unlock (&preadwritelock);
381		582
382	return res;	583	return res;
383	}	584	}
384		585
385	static ssize_t
386	pwrite (int fd, void *buf, size_t count, off_t offset)	586	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
387	{	587	{
388	ssize_t res;	588	ssize_t res;
389	off_t ooffset;	589	off_t ooffset;
390		590
391	pthread_mutex_lock (&preadwritelock);	591	pthread_mutex_lock (&preadwritelock);
…		…
404	#endif	604	#endif
405		605
406	#if !HAVE_READAHEAD	606	#if !HAVE_READAHEAD
407	# define readahead aio_readahead	607	# define readahead aio_readahead
408		608
409	static ssize_t
410	readahead (int fd, off_t offset, size_t count)	609	static ssize_t readahead (int fd, off_t offset, size_t count)
411	{	610	{
412	char readahead_buf[4096];	611	dBUF;
413		612
414	while (count > 0)	613	while (count > 0)
415	{	614	{
416	size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);	615	size_t len = count < AIO_BUFSIZE ? count : AIO_BUFSIZE;
417		616
418	pread (fd, readahead_buf, len, offset);	617	pread (fd, aio_buf, len, offset);
419	offset += len;	618	offset += len;
420	count -= len;	619	count -= len;
421	}	620	}
422		621
		622	fBUF;
		623
423	errno = 0;	624	errno = 0;
424	}	625	}
425	#endif	626	#endif
426		627
427	#if !HAVE_READDIR_R	628	#if !HAVE_READDIR_R
428	# define readdir_r aio_readdir_r	629	# define readdir_r aio_readdir_r
429		630
430	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;	631	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
431		632
432	static int
433	readdir_r (DIR dirp, struct dirent ent, struct dirent **res)	633	static int readdir_r (DIR dirp, struct dirent ent, struct dirent **res)
434	{	634	{
435	struct dirent *e;	635	struct dirent *e;
436	int errorno;	636	int errorno;
437		637
438	pthread_mutex_lock (&readdirlock);	638	pthread_mutex_lock (&readdirlock);
…		…
454	return e ? 0 : -1;	654	return e ? 0 : -1;
455	}	655	}
456	#endif	656	#endif
457		657
458	/* sendfile always needs emulation */	658	/* sendfile always needs emulation */
459	static ssize_t
460	sendfile_ (int ofd, int ifd, off_t offset, size_t count)	659	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
461	{	660	{
462	ssize_t res;	661	ssize_t res;
463		662
464	if (!count)	663	if (!count)
465	return 0;	664	return 0;
…		…
499		698
500	if (res < 0 && sbytes)	699	if (res < 0 && sbytes)
501	res = sbytes;	700	res = sbytes;
502	}	701	}
503		702
		703	# endif
504	# else	704	#else
505	res = -1;	705	res = -1;
506	errno = ENOSYS;	706	errno = ENOSYS;
507	# endif
508	#endif	707	#endif
509		708
510	if (res < 0	709	if (res < 0
511	&& (errno == ENOSYS \|\| errno == EINVAL \|\| errno == ENOTSOCK	710	&& (errno == ENOSYS \|\| errno == EINVAL \|\| errno == ENOTSOCK
512	#if __solaris	711	#if __solaris
…		…
514	#endif	713	#endif
515	)	714	)
516	)	715	)
517	{	716	{
518	/* emulate sendfile. this is a major pain in the ass */	717	/* emulate sendfile. this is a major pain in the ass */
519	char buf[4096];	718	dBUF;
		719
520	res = 0;	720	res = 0;
521		721
522	for (;;)	722	while (count)
523	{	723	{
524	ssize_t cnt;	724	ssize_t cnt;
525		725
526	cnt = pread (ifd, buf, 4096, offset);	726	cnt = pread (ifd, aio_buf, count > AIO_BUFSIZE ? AIO_BUFSIZE : count, offset);
527		727
528	if (cnt <= 0)	728	if (cnt <= 0)
529	{	729	{
530	if (cnt && !res) res = -1;	730	if (cnt && !res) res = -1;
531	break;	731	break;
532	}	732	}
533		733
534	cnt = write (ofd, buf, cnt);	734	cnt = write (ofd, aio_buf, cnt);
535		735
536	if (cnt <= 0)	736	if (cnt <= 0)
537	{	737	{
538	if (cnt && !res) res = -1;	738	if (cnt && !res) res = -1;
539	break;	739	break;
540	}	740	}
541		741
542	offset += cnt;	742	offset += cnt;
543	res += cnt;	743	res += cnt;
		744	count -= cnt;
544	}	745	}
		746
		747	fBUF;
545	}	748	}
546		749
547	return res;	750	return res;
548	}	751	}
549		752
550	/* read a full directory */	753	/* read a full directory */
551	static int
552	scandir_ (const char path, void *namesp)	754	static int scandir_ (const char path, void *namesp)
553	{	755	{
554	DIR *dirp = opendir (path);	756	DIR *dirp;
555	union	757	union
556	{	758	{
557	struct dirent d;	759	struct dirent d;
558	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];	760	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
559	} u;	761	} *u;
560	struct dirent *entp;	762	struct dirent *entp;
561	char name, names;	763	char name, names;
562	int memlen = 4096;	764	int memlen = 4096;
563	int memofs = 0;	765	int memofs = 0;
564	int res = 0;	766	int res = 0;
565	int errorno;	767	int errorno;
566		768
		769	dirp = opendir (path);
567	if (!dirp)	770	if (!dirp)
568	return -1;	771	return -1;
569		772
		773	u = malloc (sizeof (*u));
570	names = malloc (memlen);	774	names = malloc (memlen);
571		775
		776	if (u && names)
572	for (;;)	777	for (;;)
573	{	778	{
		779	errno = 0;
574	errno = 0, readdir_r (dirp, &u.d, &entp);	780	readdir_r (dirp, &u->d, &entp);
575		781
576	if (!entp)	782	if (!entp)
577	break;	783	break;
578		784
579	name = entp->d_name;	785	name = entp->d_name;
580		786
581	if (name [0] != '.' \|\| (name [1] && (name [1] != '.' \|\| name [2])))	787	if (name [0] != '.' \|\| (name [1] && (name [1] != '.' \|\| name [2])))
582	{	788	{
583	int len = strlen (name) + 1;	789	int len = strlen (name) + 1;
584		790
585	res++;	791	res++;
586		792
587	while (memofs + len > memlen)	793	while (memofs + len > memlen)
588	{	794	{
589	memlen *= 2;	795	memlen *= 2;
590	names = realloc (names, memlen);	796	names = realloc (names, memlen);
591	if (!names)	797	if (!names)
592	break;	798	break;
593	}	799	}
594		800
595	memcpy (names + memofs, name, len);	801	memcpy (names + memofs, name, len);
596	memofs += len;	802	memofs += len;
597	}	803	}
598	}	804	}
599		805
600	errorno = errno;	806	errorno = errno;
		807	free (u);
601	closedir (dirp);	808	closedir (dirp);
602		809
603	if (errorno)	810	if (errorno)
604	{	811	{
605	free (names);	812	free (names);
…		…
611	return res;	818	return res;
612	}	819	}
613		820
614	/*****************************************************************************/	821	/*****************************************************************************/
615		822
616	static void *
617	aio_proc (void *thr_arg)	823	static void aio_proc (void thr_arg)
618	{	824	{
619	aio_req req;	825	aio_req req;
620	int type;	826	int type;
621		827
622	do	828	do
…		…
640	}	846	}
641		847
642	pthread_mutex_unlock (&reqlock);	848	pthread_mutex_unlock (&reqlock);
643		849
644	errno = 0; /* strictly unnecessary */	850	errno = 0; /* strictly unnecessary */
		851	type = req->type; /* remember type for QUIT check */
645		852
646	type = req->type;	853	if (!(req->flags & FLAG_CANCELLED))
647
648	switch (type)	854	switch (type)
649	{	855	{
650	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;	856	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
651	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;	857	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
652		858
653	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;	859	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
654	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;	860	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
655		861
656	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;	862	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
657	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;	863	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
658	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;	864	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
659		865
660	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;	866	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
661	case REQ_CLOSE: req->result = close (req->fd); break;	867	case REQ_CLOSE: req->result = close (req->fd); break;
662	case REQ_UNLINK: req->result = unlink (req->dataptr); break;	868	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
663	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;	869	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
		870	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
		871	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
664	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;	872	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
665		873
666	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;	874	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
667	case REQ_FSYNC: req->result = fsync (req->fd); break;	875	case REQ_FSYNC: req->result = fsync (req->fd); break;
668	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;	876	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
669		877
		878	case REQ_SLEEP:
		879	{
		880	struct timeval tv;
		881
		882	tv.tv_sec = req->fd;
		883	tv.tv_usec = req->fd2;
		884
		885	req->result = select (0, 0, 0, 0, &tv);
		886	}
		887
		888	case REQ_GROUP:
		889	case REQ_NOP:
670	case REQ_QUIT:	890	case REQ_QUIT:
671	break;	891	break;
672		892
673	default:	893	default:
674	req->result = ENOSYS;	894	req->result = ENOSYS;
675	break;	895	break;
676	}	896	}
677		897
678	req->errorno = errno;	898	req->errorno = errno;
679		899
680	pthread_mutex_lock (&reslock);	900	pthread_mutex_lock (&reslock);
681		901
…		…
735		955
736	while (reqs)	956	while (reqs)
737	{	957	{
738	prv = reqs;	958	prv = reqs;
739	reqs = prv->next;	959	reqs = prv->next;
740	free_req (prv);	960	req_free (prv);
741	}	961	}
742		962
743	reqs = reqe = 0;	963	reqs = reqe = 0;
744		964
745	while (ress)	965	while (ress)
746	{	966	{
747	prv = ress;	967	prv = ress;
748	ress = prv->next;	968	ress = prv->next;
749	free_req (prv);	969	req_free (prv);
750	}	970	}
751		971
752	ress = rese = 0;	972	ress = rese = 0;
753		973
754	close (respipe [0]);	974	close (respipe [0]);
…		…
758	atfork_parent ();	978	atfork_parent ();
759	}	979	}
760		980
761	#define dREQ \	981	#define dREQ \
762	aio_req req; \	982	aio_req req; \
		983	int req_pri = next_pri; \
		984	next_pri = DEFAULT_PRI + PRI_BIAS; \
763	\	985	\
764	if (SvOK (callback) && !SvROK (callback)) \	986	if (SvOK (callback) && !SvROK (callback)) \
765	croak ("clalback must be undef or of reference type"); \	987	croak ("callback must be undef or of reference type"); \
766	\	988	\
767	Newz (0, req, 1, aio_cb); \	989	Newz (0, req, 1, aio_cb); \
768	if (!req) \	990	if (!req) \
769	croak ("out of memory during aio_req allocation"); \	991	croak ("out of memory during aio_req allocation"); \
770	\	992	\
771	req->callback = newSVsv (callback);	993	req->callback = newSVsv (callback); \
		994	req->pri = req_pri
		995
		996	#define REQ_SEND \
		997	req_send (req); \
		998	\
		999	if (GIMME_V != G_VOID) \
		1000	XPUSHs (req_sv (req, AIO_REQ_KLASS));
772		1001
773	MODULE = IO::AIO PACKAGE = IO::AIO	1002	MODULE = IO::AIO PACKAGE = IO::AIO
774		1003
775	PROTOTYPES: ENABLE	1004	PROTOTYPES: ENABLE
776		1005
777	BOOT:	1006	BOOT:
778	{	1007	{
		1008	HV *stash = gv_stashpv ("IO::AIO", 1);
		1009	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
		1010	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
		1011	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
		1012
779	create_pipe ();	1013	create_pipe ();
780	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);	1014	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
781	}	1015	}
782		1016
783	void	1017	void
784	min_parallel(nthreads)	1018	min_parallel (nthreads)
785	int nthreads	1019	int nthreads
786	PROTOTYPE: $	1020	PROTOTYPE: $
787		1021
788	void	1022	void
789	max_parallel(nthreads)	1023	max_parallel (nthreads)
790	int nthreads	1024	int nthreads
791	PROTOTYPE: $	1025	PROTOTYPE: $
792		1026
793	int	1027	int
794	max_outstanding(nreqs)	1028	max_outstanding (nreqs)
795	int nreqs	1029	int nreqs
796	PROTOTYPE: $	1030	PROTOTYPE: $
797	CODE:	1031	CODE:
798	RETVAL = max_outstanding;	1032	RETVAL = max_outstanding;
799	max_outstanding = nreqs;	1033	max_outstanding = nreqs;
800		1034
801	void	1035	void
802	aio_open(pathname,flags,mode,callback=&PL_sv_undef)	1036	aio_open (pathname,flags,mode,callback=&PL_sv_undef)
803	SV * pathname	1037	SV * pathname
804	int flags	1038	int flags
805	int mode	1039	int mode
806	SV * callback	1040	SV * callback
807	PROTOTYPE: $$$;$	1041	PROTOTYPE: $$$;$
808	CODE:	1042	PPCODE:
809	{	1043	{
810	dREQ;	1044	dREQ;
811		1045
812	req->type = REQ_OPEN;	1046	req->type = REQ_OPEN;
813	req->data = newSVsv (pathname);	1047	req->data = newSVsv (pathname);
814	req->dataptr = SvPVbyte_nolen (req->data);	1048	req->dataptr = SvPVbyte_nolen (req->data);
815	req->fd = flags;	1049	req->fd = flags;
816	req->mode = mode;	1050	req->mode = mode;
817		1051
818	send_req (req);	1052	REQ_SEND;
819	}	1053	}
820		1054
821	void	1055	void
822	aio_close(fh,callback=&PL_sv_undef)	1056	aio_close (fh,callback=&PL_sv_undef)
823	SV * fh	1057	SV * fh
824	SV * callback	1058	SV * callback
825	PROTOTYPE: $;$	1059	PROTOTYPE: $;$
826	ALIAS:	1060	ALIAS:
827	aio_close = REQ_CLOSE	1061	aio_close = REQ_CLOSE
828	aio_fsync = REQ_FSYNC	1062	aio_fsync = REQ_FSYNC
829	aio_fdatasync = REQ_FDATASYNC	1063	aio_fdatasync = REQ_FDATASYNC
830	CODE:	1064	PPCODE:
831	{	1065	{
832	dREQ;	1066	dREQ;
833		1067
834	req->type = ix;	1068	req->type = ix;
835	req->fh = newSVsv (fh);	1069	req->fh = newSVsv (fh);
836	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1070	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
837		1071
838	send_req (req);	1072	REQ_SEND (req);
839	}	1073	}
840		1074
841	void	1075	void
842	aio_read(fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	1076	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)
843	SV * fh	1077	SV * fh
844	UV offset	1078	UV offset
845	UV length	1079	UV length
846	SV * data	1080	SV * data
847	UV dataoffset	1081	UV dataoffset
848	SV * callback	1082	SV * callback
849	ALIAS:	1083	ALIAS:
850	aio_read = REQ_READ	1084	aio_read = REQ_READ
851	aio_write = REQ_WRITE	1085	aio_write = REQ_WRITE
852	PROTOTYPE: $$$$$;$	1086	PROTOTYPE: $$$$$;$
853	CODE:	1087	PPCODE:
854	{	1088	{
855	aio_req req;	1089	aio_req req;
856	STRLEN svlen;	1090	STRLEN svlen;
857	char *svptr = SvPVbyte (data, svlen);	1091	char *svptr = SvPVbyte (data, svlen);
858		1092
…		…
896	{	1130	{
897	SvREADONLY_on (data);	1131	SvREADONLY_on (data);
898	req->data2ptr = (void *)data;	1132	req->data2ptr = (void *)data;
899	}	1133	}
900		1134
901	send_req (req);	1135	REQ_SEND;
902	}	1136	}
903	}	1137	}
904		1138
905	void	1139	void
906	aio_sendfile(out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	1140	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)
907	SV * out_fh	1141	SV * out_fh
908	SV * in_fh	1142	SV * in_fh
909	UV in_offset	1143	UV in_offset
910	UV length	1144	UV length
911	SV * callback	1145	SV * callback
912	PROTOTYPE: $$$$;$	1146	PROTOTYPE: $$$$;$
913	CODE:	1147	PPCODE:
914	{	1148	{
915	dREQ;	1149	dREQ;
916		1150
917	req->type = REQ_SENDFILE;	1151	req->type = REQ_SENDFILE;
918	req->fh = newSVsv (out_fh);	1152	req->fh = newSVsv (out_fh);
…		…
920	req->fh2 = newSVsv (in_fh);	1154	req->fh2 = newSVsv (in_fh);
921	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1155	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));
922	req->offset = in_offset;	1156	req->offset = in_offset;
923	req->length = length;	1157	req->length = length;
924		1158
925	send_req (req);	1159	REQ_SEND;
926	}	1160	}
927		1161
928	void	1162	void
929	aio_readahead(fh,offset,length,callback=&PL_sv_undef)	1163	aio_readahead (fh,offset,length,callback=&PL_sv_undef)
930	SV * fh	1164	SV * fh
931	UV offset	1165	UV offset
932	IV length	1166	IV length
933	SV * callback	1167	SV * callback
934	PROTOTYPE: $$$;$	1168	PROTOTYPE: $$$;$
935	CODE:	1169	PPCODE:
936	{	1170	{
937	dREQ;	1171	dREQ;
938		1172
939	req->type = REQ_READAHEAD;	1173	req->type = REQ_READAHEAD;
940	req->fh = newSVsv (fh);	1174	req->fh = newSVsv (fh);
941	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	1175	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));
942	req->offset = offset;	1176	req->offset = offset;
943	req->length = length;	1177	req->length = length;
944		1178
945	send_req (req);	1179	REQ_SEND;
946	}	1180	}
947		1181
948	void	1182	void
949	aio_stat(fh_or_path,callback=&PL_sv_undef)	1183	aio_stat (fh_or_path,callback=&PL_sv_undef)
950	SV * fh_or_path	1184	SV * fh_or_path
951	SV * callback	1185	SV * callback
952	ALIAS:	1186	ALIAS:
953	aio_stat = REQ_STAT	1187	aio_stat = REQ_STAT
954	aio_lstat = REQ_LSTAT	1188	aio_lstat = REQ_LSTAT
955	CODE:	1189	PPCODE:
956	{	1190	{
957	dREQ;	1191	dREQ;
958		1192
959	New (0, req->statdata, 1, Stat_t);	1193	New (0, req->statdata, 1, Stat_t);
960	if (!req->statdata)	1194	if (!req->statdata)
961	{	1195	{
962	free_req (req);	1196	req_free (req);
963	croak ("out of memory during aio_req->statdata allocation");	1197	croak ("out of memory during aio_req->statdata allocation");
964	}	1198	}
965		1199
966	if (SvPOK (fh_or_path))	1200	if (SvPOK (fh_or_path))
967	{	1201	{
…		…
974	req->type = REQ_FSTAT;	1208	req->type = REQ_FSTAT;
975	req->fh = newSVsv (fh_or_path);	1209	req->fh = newSVsv (fh_or_path);
976	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1210	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
977	}	1211	}
978		1212
979	send_req (req);	1213	REQ_SEND;
980	}	1214	}
981		1215
982	void	1216	void
983	aio_unlink(pathname,callback=&PL_sv_undef)	1217	aio_unlink (pathname,callback=&PL_sv_undef)
984	SV * pathname	1218	SV * pathname
985	SV * callback	1219	SV * callback
986	ALIAS:	1220	ALIAS:
987	aio_unlink = REQ_UNLINK	1221	aio_unlink = REQ_UNLINK
988	aio_rmdir = REQ_RMDIR	1222	aio_rmdir = REQ_RMDIR
		1223	aio_readdir = REQ_READDIR
989	CODE:	1224	PPCODE:
990	{	1225	{
991	dREQ;	1226	dREQ;
992		1227
993	req->type = ix;	1228	req->type = ix;
994	req->data = newSVsv (pathname);	1229	req->data = newSVsv (pathname);
995	req->dataptr = SvPVbyte_nolen (req->data);	1230	req->dataptr = SvPVbyte_nolen (req->data);
996		1231
997	send_req (req);	1232	REQ_SEND;
998	}	1233	}
999		1234
1000	void	1235	void
1001	aio_symlink(oldpath,newpath,callback=&PL_sv_undef)	1236	aio_link (oldpath,newpath,callback=&PL_sv_undef)
1002	SV * oldpath	1237	SV * oldpath
1003	SV * newpath	1238	SV * newpath
1004	SV * callback	1239	SV * callback
		1240	ALIAS:
		1241	aio_link = REQ_LINK
		1242	aio_symlink = REQ_SYMLINK
		1243	aio_rename = REQ_RENAME
1005	CODE:	1244	PPCODE:
1006	{	1245	{
1007	dREQ;	1246	dREQ;
1008		1247
1009	req->type = REQ_SYMLINK;	1248	req->type = ix;
1010	req->fh = newSVsv (oldpath);	1249	req->fh = newSVsv (oldpath);
1011	req->data2ptr = SvPVbyte_nolen (req->fh);	1250	req->data2ptr = SvPVbyte_nolen (req->fh);
1012	req->data = newSVsv (newpath);	1251	req->data = newSVsv (newpath);
1013	req->dataptr = SvPVbyte_nolen (req->data);	1252	req->dataptr = SvPVbyte_nolen (req->data);
1014		1253
1015	send_req (req);	1254	REQ_SEND;
1016	}	1255	}
1017		1256
1018	void	1257	void
1019	aio_readdir(pathname,callback=&PL_sv_undef)	1258	aio_sleep (delay,callback=&PL_sv_undef)
1020	SV * pathname	1259	double delay
1021	SV * callback	1260	SV * callback
		1261	PPCODE:
		1262	{
		1263	dREQ;
		1264
		1265	req->type = REQ_SLEEP;
		1266	req->fd = delay < 0. ? 0 : delay;
		1267	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
		1268
		1269	REQ_SEND;
		1270	}
		1271
		1272	void
		1273	aio_group (callback=&PL_sv_undef)
		1274	SV * callback
		1275	PROTOTYPE: ;$
		1276	PPCODE:
		1277	{
		1278	dREQ;
		1279
		1280	req->type = REQ_GROUP;
		1281	req_send (req);
		1282
		1283	XPUSHs (req_sv (req, AIO_GRP_KLASS));
		1284	}
		1285
		1286	void
		1287	aio_nop (callback=&PL_sv_undef)
		1288	SV * callback
		1289	PPCODE:
		1290	{
		1291	dREQ;
		1292
		1293	req->type = REQ_NOP;
		1294
		1295	REQ_SEND;
		1296	}
		1297
		1298	#if 0
		1299
		1300	void
		1301	aio_pri (int pri = DEFAULT_PRI)
1022	CODE:	1302	CODE:
1023	{	1303	if (pri < PRI_MIN) pri = PRI_MIN;
1024	dREQ;	1304	if (pri > PRI_MAX) pri = PRI_MAX;
1025		1305	next_pri = pri + PRI_BIAS;
1026	req->type = REQ_READDIR;
1027	req->data = newSVsv (pathname);
1028	req->dataptr = SvPVbyte_nolen (req->data);
1029
1030	send_req (req);
1031	}
1032		1306
		1307	#endif
		1308
1033	void	1309	void
1034	flush()	1310	flush ()
1035	PROTOTYPE:	1311	PROTOTYPE:
1036	CODE:	1312	CODE:
1037	while (nreqs)	1313	while (nreqs)
1038	{	1314	{
1039	poll_wait ();	1315	poll_wait ();
…		…
1079	CODE:	1355	CODE:
1080	RETVAL = nreqs;	1356	RETVAL = nreqs;
1081	OUTPUT:	1357	OUTPUT:
1082	RETVAL	1358	RETVAL
1083		1359
		1360	PROTOTYPES: DISABLE
		1361
		1362	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
		1363
		1364	void
		1365	cancel (aio_req_ornot req)
		1366	PROTOTYPE:
		1367	CODE:
		1368	req_cancel (req);
		1369
		1370	void
		1371	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
		1372	CODE:
		1373	SvREFCNT_dec (req->callback);
		1374	req->callback = newSVsv (callback);
		1375
		1376	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
		1377
		1378	void
		1379	add (aio_req grp, ...)
		1380	PPCODE:
		1381	{
		1382	int i;
		1383	aio_req req;
		1384
		1385	if (grp->fd == 2)
		1386	croak ("cannot add requests to IO::AIO::GRP after the group finished");
		1387
		1388	for (i = 1; i < items; ++i )
		1389	{
		1390	if (GIMME_V != G_VOID)
		1391	XPUSHs (sv_2mortal (newSVsv (ST (i))));
		1392
		1393	req = SvAIO_REQ (ST (i));
		1394
		1395	if (req)
		1396	{
		1397	++grp->length;
		1398	req->grp = grp;
		1399
		1400	req->grp_prev = 0;
		1401	req->grp_next = grp->grp_first;
		1402
		1403	if (grp->grp_first)
		1404	grp->grp_first->grp_prev = req;
		1405
		1406	grp->grp_first = req;
		1407	}
		1408	}
		1409	}
		1410
		1411	void
		1412	result (aio_req grp, ...)
		1413	CODE:
		1414	{
		1415	int i;
		1416	AV *av = newAV ();
		1417
		1418	for (i = 1; i < items; ++i )
		1419	av_push (av, newSVsv (ST (i)));
		1420
		1421	SvREFCNT_dec (grp->data);
		1422	grp->data = (SV *)av;
		1423	}
		1424
		1425	void
		1426	feed_limit (aio_req grp, int limit)
		1427	CODE:
		1428	grp->fd2 = limit;
		1429	aio_grp_feed (grp);
		1430
		1431	void
		1432	feed (aio_req grp, SV *callback=&PL_sv_undef)
		1433	CODE:
		1434	{
		1435	SvREFCNT_dec (grp->fh2);
		1436	grp->fh2 = newSVsv (callback);
		1437
		1438	if (grp->fd2 <= 0)
		1439	grp->fd2 = 2;
		1440
		1441	aio_grp_feed (grp);
		1442	}
		1443

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Comparing IO-AIO/AIO.xs (file contents): Revision 1.37 by root, Tue Aug 23 12:37:19 2005 UTC vs. Revision 1.65 by root, Tue Oct 24 00:26:32 2006 UTC

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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.37 by root, Tue Aug 23 12:37:19 2005 UTC vs.
Revision 1.65 by root, Tue Oct 24 00:26:32 2006 UTC