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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.52 by root, Sun Oct 22 22:14:54 2006 UTC vs.
Revision 1.152 by root, Tue Jul 14 00:32:27 2009 UTC

1	#define _REENTRANT 1	1	#include "libeio/xthread.h"
		2
2	#include <errno.h>	3	#include <errno.h>
3		4
4	#include "EXTERN.h"	5	#include "EXTERN.h"
5	#include "perl.h"	6	#include "perl.h"
6	#include "XSUB.h"	7	#include "XSUB.h"
7		8
8	#include "autoconf/config.h"	9	#include "schmorp.h"
9
10	#include <pthread.h>
11		10
12	#include <stddef.h>	11	#include <stddef.h>
		12	#include <stdlib.h>
13	#include <errno.h>	13	#include <errno.h>
14	#include <sys/time.h>
15	#include <sys/select.h>
16	#include <sys/types.h>	14	#include <sys/types.h>
17	#include <sys/stat.h>	15	#include <sys/stat.h>
18	#include <limits.h>	16	#include <limits.h>
19	#include <unistd.h>
20	#include <fcntl.h>	17	#include <fcntl.h>
21	#include <signal.h>
22	#include <sched.h>	18	#include <sched.h>
23		19
24	#if HAVE_SENDFILE	20	/* perl namespace pollution */
25	# if __linux	21	#undef VERSION
26	# include <sys/sendfile.h>
27	# elif __freebsd
28	# include <sys/socket.h>
29	# include <sys/uio.h>
30	# elif __hpux
31	# include <sys/socket.h>
32	# elif __solaris /* not yet */
33	# include <sys/sendfile.h>
34	# else
35	# error sendfile support requested but not available
36	# endif
37	#endif
38		22
39	/* used for struct dirent, AIX doesn't provide it */	23	#ifdef _WIN32
40	#ifndef NAME_MAX
41	# define NAME_MAX 4096
42	#endif
43		24
44	#if __ia64	25	# define EIO_STRUCT_DIRENT Direntry_t
45	# define STACKSIZE 65536	26	# undef malloc
		27	# undef free
		28
		29	// perl overrides all those nice win32 functions
		30	# undef open
		31	# undef read
		32	# undef write
		33	# undef send
		34	# undef recv
		35	# undef stat
		36	# undef fstat
		37	# define lstat stat
		38	# undef truncate
		39	# undef ftruncate
		40	# undef open
		41	# undef close
		42	# undef unlink
		43	# undef rmdir
		44	# undef rename
		45	# undef lseek
		46
		47	# define chown(a,b,c) (errno = ENOSYS, -1)
		48	# define fchown(a,b,c) (errno = ENOSYS, -1)
		49	# define fchmod(a,b) (errno = ENOSYS, -1)
		50	# define symlink(a,b) (errno = ENOSYS, -1)
		51	# define readlink(a,b,c) (errno = ENOSYS, -1)
		52	# define mknod(a,b,c) (errno = ENOSYS, -1)
		53	# define truncate(a,b) (errno = ENOSYS, -1)
		54	# define ftruncate(fd,o) chsize ((fd), (o))
		55	# define fsync(fd) _commit (fd)
		56	# define opendir(fd) (errno = ENOSYS, 0)
		57	# define readdir(fd) (errno = ENOSYS, -1)
		58	# define closedir(fd) (errno = ENOSYS, -1)
		59	# define mkdir(a,b) mkdir (a)
		60
46	#else	61	#else
47	# define STACKSIZE 8192
48	#endif
49		62
50	enum {	63	# include <sys/time.h>
51	REQ_QUIT,	64	# include <sys/select.h>
52	REQ_OPEN, REQ_CLOSE,	65	# include <unistd.h>
53	REQ_READ, REQ_WRITE, REQ_READAHEAD,	66	# include <utime.h>
54	REQ_SENDFILE,	67	# include <signal.h>
55	REQ_STAT, REQ_LSTAT, REQ_FSTAT,	68	# define EIO_STRUCT_DIRENT struct dirent
56	REQ_FSYNC, REQ_FDATASYNC,	69
57	REQ_UNLINK, REQ_RMDIR, REQ_RENAME,	70	#endif
58	REQ_READDIR,	71
59	REQ_LINK, REQ_SYMLINK,	72	/* perl stupidly overrides readdir and maybe others */
60	REQ_SLEEP,	73	/* with thread-unsafe versions, imagine that :( */
61	REQ_GROUP,	74	#undef readdir
62	};	75	#undef opendir
		76	#undef closedir
		77
		78	#define EIO_STRUCT_STAT Stat_t
		79
		80	/* use NV for 32 bit perls as it allows larger offsets */
		81	#if IVSIZE >= 8
		82	# define VAL64 IV
		83	# define SvVAL64 SvIV
		84	# define newSVval64 newSViv
		85	#else
		86	# define VAL64 NV
		87	# define SvVAL64 SvNV
		88	# define newSVval64 newSVnv
		89	#endif
		90
		91	/*****************************************************************************/
		92
		93	#if __GNUC__ >= 3
		94	# define expect(expr,value) __builtin_expect ((expr),(value))
		95	#else
		96	# define expect(expr,value) (expr)
		97	#endif
		98
		99	#define expect_false(expr) expect ((expr) != 0, 0)
		100	#define expect_true(expr) expect ((expr) != 0, 1)
		101
		102	/*****************************************************************************/
		103
		104	static HV *stash;
		105	typedef SV SV8; /* byte-sv, used for argument-checking */
		106	typedef int aio_rfd; /* read file desriptor */
		107	typedef int aio_wfd; /* write file descriptor */
63		108
64	#define AIO_REQ_KLASS "IO::AIO::REQ"	109	#define AIO_REQ_KLASS "IO::AIO::REQ"
65	#define AIO_GRP_KLASS "IO::AIO::GRP"	110	#define AIO_GRP_KLASS "IO::AIO::GRP"
66		111
67	typedef struct aio_cb	112	#define EIO_REQ_MEMBERS \
68	{
69	struct aio_cb *volatile next;
70
71	struct aio_cb *grp, *grp_prev, *grp_next, *grp_first;
72
73	SV *self; /* the perl counterpart of this request, if any */
74
75	SV *data, *callback;	113	SV *callback; \
76	SV *fh, *fh2;	114	SV *sv1, *sv2; \
77	void *dataptr, *data2ptr;
78	Stat_t *statdata;
79	off_t offset;
80	size_t length;
81	ssize_t result;
82
83	int type;
84	int fd, fd2;
85	int errorno;
86	STRLEN dataoffset;	115	STRLEN stroffset; \
87	mode_t mode; /* open */	116	SV *self;
88	unsigned char cancelled;
89	} aio_cb;
90		117
		118	#define EIO_NO_WRAPPERS 1
		119
		120	#include "libeio/eio.h"
		121
		122	#ifndef POSIX_FADV_NORMAL
		123	# define POSIX_FADV_NORMAL 0
		124	# define NO_FADVISE 1
		125	#endif
		126
		127	#ifndef POSIX_FADV_SEQUENTIAL
		128	# define POSIX_FADV_SEQUENTIAL 0
		129	#endif
		130
		131	#ifndef POSIX_FADV_RANDOM
		132	# define POSIX_FADV_RANDOM 0
		133	#endif
		134
		135	#ifndef POSIX_FADV_NOREUSE
		136	# define POSIX_FADV_NOREUSE 0
		137	#endif
		138
		139	#ifndef POSIX_FADV_WILLNEED
		140	# define POSIX_FADV_WILLNEED 0
		141	#endif
		142
		143	#ifndef POSIX_FADV_DONTNEED
		144	# define POSIX_FADV_DONTNEED 0
		145	#endif
		146
		147	static int req_invoke (eio_req *req);
		148	#define EIO_FINISH(req) req_invoke (req)
		149	static void req_destroy (eio_req *grp);
		150	#define EIO_DESTROY(req) req_destroy (req)
		151
		152	enum {
		153	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
		154	};
		155
		156	#include "libeio/eio.c"
		157
91	typedef aio_cb *aio_req;	158	typedef eio_req *aio_req;
92	typedef aio_cb *aio_req_ornot;	159	typedef eio_req *aio_req_ornot;
93		160
94	static int started, wanted;	161	static SV *on_next_submit;
95	static volatile int nreqs;	162	static int next_pri = EIO_PRI_DEFAULT;
96	static int max_outstanding = 1<<30;	163	static int max_outstanding;
97	static int respipe [2];
98		164
99	static pthread_mutex_t reslock = PTHREAD_MUTEX_INITIALIZER;	165	static int respipe_osf [2], respipe [2] = { -1, -1 };
100	static pthread_mutex_t reqlock = PTHREAD_MUTEX_INITIALIZER;
101	static pthread_cond_t reqwait = PTHREAD_COND_INITIALIZER;
102		166
103	static volatile aio_req reqs, reqe; /* queue start, queue end */	167	static void req_destroy (aio_req req);
104	static volatile aio_req ress, rese; /* queue start, queue end */
105
106	static void req_invoke (aio_req req);	168	static void req_cancel (aio_req req);
107	static void req_free (aio_req req);	169
		170	static void want_poll (void)
		171	{
		172	/* write a dummy byte to the pipe so fh becomes ready */
		173	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);
		174	}
		175
		176	static void done_poll (void)
		177	{
		178	/* read any signals sent by the worker threads */
		179	char buf [4];
		180	while (respipe_read (respipe [0], buf, 4) == 4)
		181	;
		182	}
108		183
109	/* must be called at most once */	184	/* must be called at most once */
110	static SV *req_sv (aio_req req, const char *klass)	185	static SV *req_sv (aio_req req, const char *klass)
111	{	186	{
112	if (!req->self)	187	if (!req->self)
…		…
118	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	193	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));
119	}	194	}
120		195
121	static aio_req SvAIO_REQ (SV *sv)	196	static aio_req SvAIO_REQ (SV *sv)
122	{	197	{
		198	MAGIC *mg;
		199
123	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	200	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))
124	croak ("object of class " AIO_REQ_KLASS " expected");	201	croak ("object of class " AIO_REQ_KLASS " expected");
125		202
126	MAGIC *mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	203	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
127		204
128	return mg ? (aio_req)mg->mg_ptr : 0;	205	return mg ? (aio_req)mg->mg_ptr : 0;
129	}	206	}
130		207
131	static void aio_grp_feed (aio_req grp)	208	static void aio_grp_feed (aio_req grp)
132	{	209	{
133	while (grp->length < grp->fd2)	210	if (grp->sv2 && SvOK (grp->sv2))
134	{	211	{
135	int old_len = grp->length;	212	dSP;
136		213
137	if (grp->fh2 && SvOK (grp->fh2))	214	ENTER;
		215	SAVETMPS;
		216	PUSHMARK (SP);
		217	XPUSHs (req_sv (grp, AIO_GRP_KLASS));
		218	PUTBACK;
		219	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
		220	SPAGAIN;
		221	FREETMPS;
		222	LEAVE;
		223	}
		224	}
		225
		226	static void req_submit (eio_req *req)
		227	{
		228	eio_submit (req);
		229
		230	if (expect_false (on_next_submit))
		231	{
		232	dSP;
		233	SV *cb = sv_2mortal (on_next_submit);
		234
		235	on_next_submit = 0;
		236
		237	PUSHMARK (SP);
		238	PUTBACK;
		239	call_sv (cb, G_DISCARD | G_EVAL);
		240	}
		241	}
		242
		243	static int req_invoke (eio_req *req)
		244	{
		245	dSP;
		246
		247	if (req->flags & FLAG_SV2_RO_OFF)
		248	SvREADONLY_off (req->sv2);
		249
		250	if (!EIO_CANCELLED (req) && req->callback)
		251	{
		252	ENTER;
		253	SAVETMPS;
		254	PUSHMARK (SP);
		255	EXTEND (SP, 1);
		256
		257	switch (req->type)
138	{	258	{
139	dSP;	259	case EIO_READDIR:
		260	{
		261	SV *rv = &PL_sv_undef;
140		262
141	ENTER;	263	if (req->result >= 0)
142	SAVETMPS;	264	{
143	PUSHMARK (SP);	265	int i;
144	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	266	char *names = (char *)req->ptr2;
145	PUTBACK;	267	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
146	call_sv (grp->fh2, G_VOID | G_EVAL);	268	AV *av = newAV ();
147	SPAGAIN;	269
148	FREETMPS;	270	av_extend (av, req->result - 1);
149	LEAVE;	271
		272	for (i = 0; i < req->result; ++i)
		273	{
		274	if (req->int1 & EIO_READDIR_DENTS)
		275	{
		276	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
		277
		278	if (req->int1 & EIO_READDIR_CUSTOM2)
		279	{
		280	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		281	AV *avent = newAV ();
		282
		283	av_extend (avent, 2);
		284
		285	if (!sv_type [ent->type])
		286	{
		287	sv_type [ent->type] = newSViv (ent->type);
		288	SvREADONLY_on (sv_type [ent->type]);
		289	}
		290
		291	av_store (avent, 0, namesv);
		292	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		293	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		294
		295	av_store (av, i, newRV_noinc ((SV *)avent));
		296	}
		297	else
		298	av_store (av, i, namesv);
		299
		300	++ent;
		301	}
		302	else
		303	{
		304	SV *name = newSVpv (names, 0);
		305	av_store (av, i, name);
		306	names += SvCUR (name) + 1;
		307	}
		308	}
		309
		310	rv = sv_2mortal (newRV_noinc ((SV *)av));
		311	}
		312
		313	PUSHs (rv);
		314
		315	if (req->int1 & EIO_READDIR_CUSTOM1)
		316	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
		317	}
		318	break;
		319
		320	case EIO_OPEN:
		321	{
		322	/* convert fd to fh */
		323	SV *fh = &PL_sv_undef;
		324
		325	if (req->result >= 0)
		326	{
		327	GV *gv = (GV *)sv_newmortal ();
		328	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
		329	char sym [64];
		330	int symlen;
		331
		332	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
		333	gv_init (gv, stash, sym, symlen, 0);
		334
		335	symlen = snprintf (
		336	sym,
		337	sizeof (sym),
		338	"%s&=%d",
		339	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		340	(int)req->result
		341	);
		342
		343	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
		344	fh = (SV *)gv;
		345	}
		346
		347	PUSHs (fh);
		348	}
		349	break;
		350
		351	case EIO_GROUP:
		352	req->int1 = 2; /* mark group as finished */
		353
		354	if (req->sv1)
		355	{
		356	int i;
		357	AV *av = (AV *)req->sv1;
		358
		359	EXTEND (SP, AvFILL (av) + 1);
		360	for (i = 0; i <= AvFILL (av); ++i)
		361	PUSHs (*av_fetch (av, i, 0));
		362	}
		363	break;
		364
		365	case EIO_NOP:
		366	case EIO_BUSY:
		367	break;
		368
		369	case EIO_READLINK:
		370	if (req->result > 0)
		371	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
		372	break;
		373
		374	case EIO_STAT:
		375	case EIO_LSTAT:
		376	case EIO_FSTAT:
		377	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		378	PL_laststatval = req->result;
		379	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		380	PUSHs (sv_2mortal (newSViv (req->result)));
		381	break;
		382
		383	case EIO_READ:
		384	{
		385	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
		386	*SvEND (req->sv2) = 0;
		387	SvPOK_only (req->sv2);
		388	SvSETMAGIC (req->sv2);
		389	PUSHs (sv_2mortal (newSViv (req->result)));
		390	}
		391	break;
		392
		393	case EIO_DUP2:
		394	if (req->result > 0)
		395	req->result = 0;
		396	/* FALLTHROUGH */
		397
		398	default:
		399	PUSHs (sv_2mortal (newSViv (req->result)));
		400	break;
150	}	401	}
151		402
152	/* stop if no progress has been made */	403	errno = req->errorno;
153	if (old_len == grp->length)	404
154	{	405	PUTBACK;
155	SvREFCNT_dec (grp->fh2);	406	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
156	grp->fh2 = 0;	407	SPAGAIN;
157	break;	408
158	}	409	FREETMPS;
		410	LEAVE;
		411
		412	PUTBACK;
159	}	413	}
160	}
161		414
162	static void aio_grp_dec (aio_req grp)	415	return !!SvTRUE (ERRSV);
163	{
164	--grp->length;
165
166	/* call feeder, if applicable */
167	aio_grp_feed (grp);
168
169	/* finish, if done */
170	if (!grp->length && grp->fd)
171	{
172	req_invoke (grp);
173	req_free (grp);
174	}
175	}	416	}
176		417
177	static void poll_wait ()
178	{
179	if (nreqs && !ress)
180	{
181	fd_set rfd;
182	FD_ZERO(&rfd);
183	FD_SET(respipe [0], &rfd);
184
185	select (respipe [0] + 1, &rfd, 0, 0, 0);
186	}
187	}
188
189	static void req_invoke (aio_req req)
190	{
191	dSP;
192	int errorno = errno;
193
194	if (req->cancelled || !SvOK (req->callback))
195	return;
196
197	errno = req->errorno;
198
199	ENTER;
200	SAVETMPS;
201	PUSHMARK (SP);
202	EXTEND (SP, 1);
203
204	switch (req->type)
205	{
206	case REQ_READDIR:
207	{
208	SV *rv = &PL_sv_undef;
209
210	if (req->result >= 0)
211	{
212	char *buf = req->data2ptr;
213	AV *av = newAV ();
214
215	while (req->result)
216	{
217	SV *sv = newSVpv (buf, 0);
218
219	av_push (av, sv);
220	buf += SvCUR (sv) + 1;
221	req->result--;
222	}
223
224	rv = sv_2mortal (newRV_noinc ((SV *)av));
225	}
226
227	PUSHs (rv);
228	}
229	break;
230
231	case REQ_OPEN:
232	{
233	/* convert fd to fh */
234	SV *fh;
235
236	PUSHs (sv_2mortal (newSViv (req->result)));
237	PUTBACK;
238	call_pv ("IO::AIO::_fd2fh", G_SCALAR | G_EVAL);
239	SPAGAIN;
240
241	fh = SvREFCNT_inc (POPs);
242
243	PUSHMARK (SP);
244	XPUSHs (sv_2mortal (fh));
245	}
246	break;
247
248	case REQ_GROUP:
249	req->fd = 2; /* mark group as finished */
250
251	if (req->data)
252	{
253	int i;
254	AV *av = (AV *)req->data;
255
256	EXTEND (SP, AvFILL (av) + 1);
257	for (i = 0; i <= AvFILL (av); ++i)
258	PUSHs (*av_fetch (av, i, 0));
259	}
260	break;
261
262	case REQ_SLEEP:
263	break;
264
265	default:
266	PUSHs (sv_2mortal (newSViv (req->result)));
267	break;
268	}
269
270
271	PUTBACK;
272	call_sv (req->callback, G_VOID | G_EVAL);
273	SPAGAIN;
274
275	FREETMPS;
276	LEAVE;
277
278	errno = errorno;
279
280	if (SvTRUE (ERRSV))
281	{
282	req_free (req);
283	croak (0);
284	}
285	}
286
287	static void req_free (aio_req req)	418	static void req_destroy (aio_req req)
288	{	419	{
289	if (req->grp)
290	{
291	aio_req grp = req->grp;
292
293	/* unlink request */
294	if (req->grp_next) req->grp_next->grp_prev = req->grp_prev;
295	if (req->grp_prev) req->grp_prev->grp_next = req->grp_next;
296
297	if (grp->grp_first == req)
298	grp->grp_first = req->grp_next;
299
300	aio_grp_dec (grp);
301	}
302
303	if (req->self)	420	if (req->self)
304	{	421	{
305	sv_unmagic (req->self, PERL_MAGIC_ext);	422	sv_unmagic (req->self, PERL_MAGIC_ext);
306	SvREFCNT_dec (req->self);	423	SvREFCNT_dec (req->self);
307	}	424	}
308		425
309	SvREFCNT_dec (req->data);
310	SvREFCNT_dec (req->fh);	426	SvREFCNT_dec (req->sv1);
311	SvREFCNT_dec (req->fh2);	427	SvREFCNT_dec (req->sv2);
312	SvREFCNT_dec (req->callback);	428	SvREFCNT_dec (req->callback);
313	Safefree (req->statdata);
314
315	if (req->type == REQ_READDIR && req->result >= 0)
316	free (req->data2ptr);
317		429
318	Safefree (req);	430	Safefree (req);
319	}	431	}
320		432
321	static void req_cancel (aio_req req)	433	static void req_cancel_subs (aio_req grp)
322	{	434	{
323	req->cancelled = 1;	435	aio_req sub;
324		436
325	if (req->type == REQ_GROUP)	437	if (grp->type != EIO_GROUP)
		438	return;
		439
		440	SvREFCNT_dec (grp->sv2);
		441	grp->sv2 = 0;
		442
		443	eio_grp_cancel (grp);
		444	}
		445
		446	#ifdef USE_SOCKETS_AS_HANDLES
		447	# define TO_SOCKET(x) (win32_get_osfhandle (x))
		448	#else
		449	# define TO_SOCKET(x) (x)
		450	#endif
		451
		452	static void
		453	create_respipe (void)
		454	{
		455	int old_readfd = respipe [0];
		456
		457	if (respipe [1] >= 0)
		458	respipe_close (TO_SOCKET (respipe [1]));
		459
		460	#ifdef _WIN32
		461	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
		462	#else
		463	if (pipe (respipe))
		464	#endif
		465	croak ("unable to initialize result pipe");
		466
		467	if (old_readfd >= 0)
326	{	468	{
327	aio_req sub;	469	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
		470	croak ("unable to initialize result pipe(2)");
328		471
329	for (sub = req->grp_first; sub; sub = sub->grp_next)	472	respipe_close (respipe [0]);
330	req_cancel (sub);	473	respipe [0] = old_readfd;
331	}	474	}
332	}
333		475
		476	#ifdef _WIN32
		477	int arg = 1;
		478	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
		479	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
		480	#else
		481	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
		482	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
		483	#endif
		484	croak ("unable to initialize result pipe(3)");
		485
		486	respipe_osf [0] = TO_SOCKET (respipe [0]);
		487	respipe_osf [1] = TO_SOCKET (respipe [1]);
		488	}
		489
		490	static void poll_wait (void)
		491	{
		492	fd_set rfd;
		493
		494	while (eio_nreqs ())
		495	{
		496	int size;
		497
		498	X_LOCK (reslock);
		499	size = res_queue.size;
		500	X_UNLOCK (reslock);
		501
		502	if (size)
		503	return;
		504
		505	etp_maybe_start_thread ();
		506
		507	FD_ZERO (&rfd);
		508	FD_SET (respipe [0], &rfd);
		509
		510	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
		511	}
		512	}
		513
334	static int poll_cb ()	514	static int poll_cb (void)
335	{	515	{
336	dSP;
337	int count = 0;
338	int do_croak = 0;
339	aio_req req;
340
341	for (;;)	516	for (;;)
342	{	517	{
343	pthread_mutex_lock (&reslock);	518	int res = eio_poll ();
344	req = ress;
345		519
346	if (req)	520	if (res > 0)
347	{
348	ress = req->next;
349
350	if (!ress)
351	{
352	/* read any signals sent by the worker threads */
353	char buf [32];
354	while (read (respipe [0], buf, 32) == 32)
355	;
356
357	rese = 0;
358	}
359	}
360
361	pthread_mutex_unlock (&reslock);
362
363	if (!req)
364	break;	521	croak (0);
365		522
366	--nreqs;	523	if (!max_outstanding || max_outstanding > eio_nreqs ())
		524	return res;
367		525
368	if (req->type == REQ_QUIT)	526	poll_wait ();
369	started--;
370	else if (req->type == REQ_GROUP && req->length)
371	{
372	req->fd = 1; /* mark request as delayed */
373	continue;
374	}
375	else
376	{
377	if (req->type == REQ_READ)
378	SvCUR_set (req->data, req->dataoffset + (req->result > 0 ? req->result : 0));
379
380	if (req->data2ptr && (req->type == REQ_READ || req->type == REQ_WRITE))
381	SvREADONLY_off (req->data);
382
383	if (req->statdata)
384	{
385	PL_laststype = req->type == REQ_LSTAT ? OP_LSTAT : OP_STAT;
386	PL_laststatval = req->result;
387	PL_statcache = *(req->statdata);
388	}
389
390	req_invoke (req);
391
392	count++;
393	}
394
395	req_free (req);
396	}	527	}
397
398	return count;
399	}
400
401	static void *aio_proc(void *arg);
402
403	static void start_thread (void)
404	{
405	sigset_t fullsigset, oldsigset;
406	pthread_t tid;
407	pthread_attr_t attr;
408
409	pthread_attr_init (&attr);
410	pthread_attr_setstacksize (&attr, STACKSIZE);
411	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
412
413	sigfillset (&fullsigset);
414	sigprocmask (SIG_SETMASK, &fullsigset, &oldsigset);
415
416	if (pthread_create (&tid, &attr, aio_proc, 0) == 0)
417	started++;
418
419	sigprocmask (SIG_SETMASK, &oldsigset, 0);
420	}
421
422	static void req_send (aio_req req)
423	{
424	while (started < wanted && nreqs >= started)
425	start_thread ();
426
427	++nreqs;
428
429	pthread_mutex_lock (&reqlock);
430
431	req->next = 0;
432
433	if (reqe)
434	{
435	reqe->next = req;
436	reqe = req;
437	}
438	else
439	reqe = reqs = req;
440
441	pthread_cond_signal (&reqwait);
442	pthread_mutex_unlock (&reqlock);
443
444	if (nreqs > max_outstanding)
445	for (;;)
446	{
447	poll_cb ();
448
449	if (nreqs <= max_outstanding)
450	break;
451
452	poll_wait ();
453	}
454	}
455
456	static void end_thread (void)
457	{
458	aio_req req;
459	Newz (0, req, 1, aio_cb);
460	req->type = REQ_QUIT;
461
462	req_send (req);
463	}
464
465	static void min_parallel (int nthreads)
466	{
467	if (wanted < nthreads)
468	wanted = nthreads;
469	}
470
471	static void max_parallel (int nthreads)
472	{
473	int cur = started;
474
475	if (wanted > nthreads)
476	wanted = nthreads;
477
478	while (cur > wanted)
479	{
480	end_thread ();
481	cur--;
482	}
483
484	while (started > wanted)
485	{
486	poll_wait ();
487	poll_cb ();
488	}
489	}
490
491	static void create_pipe ()
492	{
493	if (pipe (respipe))
494	croak ("unable to initialize result pipe");
495
496	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK))
497	croak ("cannot set result pipe to nonblocking mode");
498
499	if (fcntl (respipe [1], F_SETFL, O_NONBLOCK))
500	croak ("cannot set result pipe to nonblocking mode");
501	}
502
503	/*****************************************************************************/
504	/* work around various missing functions */
505
506	#if !HAVE_PREADWRITE
507	# define pread aio_pread
508	# define pwrite aio_pwrite
509
510	/*
511	* make our pread/pwrite safe against themselves, but not against
512	* normal read/write by using a mutex. slows down execution a lot,
513	* but that's your problem, not mine.
514	*/
515	static pthread_mutex_t preadwritelock = PTHREAD_MUTEX_INITIALIZER;
516
517	static ssize_t pread (int fd, void *buf, size_t count, off_t offset)
518	{
519	ssize_t res;
520	off_t ooffset;
521
522	pthread_mutex_lock (&preadwritelock);
523	ooffset = lseek (fd, 0, SEEK_CUR);
524	lseek (fd, offset, SEEK_SET);
525	res = read (fd, buf, count);
526	lseek (fd, ooffset, SEEK_SET);
527	pthread_mutex_unlock (&preadwritelock);
528
529	return res;
530	}
531
532	static ssize_t pwrite (int fd, void *buf, size_t count, off_t offset)
533	{
534	ssize_t res;
535	off_t ooffset;
536
537	pthread_mutex_lock (&preadwritelock);
538	ooffset = lseek (fd, 0, SEEK_CUR);
539	lseek (fd, offset, SEEK_SET);
540	res = write (fd, buf, count);
541	lseek (fd, offset, SEEK_SET);
542	pthread_mutex_unlock (&preadwritelock);
543
544	return res;
545	}
546	#endif
547
548	#if !HAVE_FDATASYNC
549	# define fdatasync fsync
550	#endif
551
552	#if !HAVE_READAHEAD
553	# define readahead aio_readahead
554
555	static ssize_t readahead (int fd, off_t offset, size_t count)
556	{
557	char readahead_buf[4096];
558
559	while (count > 0)
560	{
561	size_t len = count < sizeof (readahead_buf) ? count : sizeof (readahead_buf);
562
563	pread (fd, readahead_buf, len, offset);
564	offset += len;
565	count -= len;
566	}
567
568	errno = 0;
569	}
570	#endif
571
572	#if !HAVE_READDIR_R
573	# define readdir_r aio_readdir_r
574
575	static pthread_mutex_t readdirlock = PTHREAD_MUTEX_INITIALIZER;
576
577	static int readdir_r (DIR *dirp, struct dirent *ent, struct dirent **res)
578	{
579	struct dirent *e;
580	int errorno;
581
582	pthread_mutex_lock (&readdirlock);
583
584	e = readdir (dirp);
585	errorno = errno;
586
587	if (e)
588	{
589	*res = ent;
590	strcpy (ent->d_name, e->d_name);
591	}
592	else
593	*res = 0;
594
595	pthread_mutex_unlock (&readdirlock);
596
597	errno = errorno;
598	return e ? 0 : -1;
599	}
600	#endif
601
602	/* sendfile always needs emulation */
603	static ssize_t sendfile_ (int ofd, int ifd, off_t offset, size_t count)
604	{
605	ssize_t res;
606
607	if (!count)
608	return 0;
609
610	#if HAVE_SENDFILE
611	# if __linux
612	res = sendfile (ofd, ifd, &offset, count);
613
614	# elif __freebsd
615	/*
616	* Of course, the freebsd sendfile is a dire hack with no thoughts
617	* wasted on making it similar to other I/O functions.
618	*/
619	{
620	off_t sbytes;
621	res = sendfile (ifd, ofd, offset, count, 0, &sbytes, 0);
622
623	if (res < 0 && sbytes)
624	/* maybe only on EAGAIN only: as usual, the manpage leaves you guessing */
625	res = sbytes;
626	}
627
628	# elif __hpux
629	res = sendfile (ofd, ifd, offset, count, 0, 0);
630
631	# elif __solaris
632	{
633	struct sendfilevec vec;
634	size_t sbytes;
635
636	vec.sfv_fd = ifd;
637	vec.sfv_flag = 0;
638	vec.sfv_off = offset;
639	vec.sfv_len = count;
640
641	res = sendfilev (ofd, &vec, 1, &sbytes);
642
643	if (res < 0 && sbytes)
644	res = sbytes;
645	}
646
647	# endif
648	#else
649	res = -1;
650	errno = ENOSYS;
651	#endif
652
653	if (res < 0
654	&& (errno == ENOSYS || errno == EINVAL || errno == ENOTSOCK
655	#if __solaris
656	|| errno == EAFNOSUPPORT || errno == EPROTOTYPE
657	#endif
658	)
659	)
660	{
661	/* emulate sendfile. this is a major pain in the ass */
662	char buf[4096];
663	res = 0;
664
665	while (count)
666	{
667	ssize_t cnt;
668
669	cnt = pread (ifd, buf, count > 4096 ? 4096 : count, offset);
670
671	if (cnt <= 0)
672	{
673	if (cnt && !res) res = -1;
674	break;
675	}
676
677	cnt = write (ofd, buf, cnt);
678
679	if (cnt <= 0)
680	{
681	if (cnt && !res) res = -1;
682	break;
683	}
684
685	offset += cnt;
686	res += cnt;
687	count -= cnt;
688	}
689	}
690
691	return res;
692	}
693
694	/* read a full directory */
695	static int scandir_ (const char *path, void **namesp)
696	{
697	DIR *dirp = opendir (path);
698	union
699	{
700	struct dirent d;
701	char b [offsetof (struct dirent, d_name) + NAME_MAX + 1];
702	} u;
703	struct dirent *entp;
704	char *name, *names;
705	int memlen = 4096;
706	int memofs = 0;
707	int res = 0;
708	int errorno;
709
710	if (!dirp)
711	return -1;
712
713	names = malloc (memlen);
714
715	for (;;)
716	{
717	errno = 0, readdir_r (dirp, &u.d, &entp);
718
719	if (!entp)
720	break;
721
722	name = entp->d_name;
723
724	if (name [0] != '.' || (name [1] && (name [1] != '.' || name [2])))
725	{
726	int len = strlen (name) + 1;
727
728	res++;
729
730	while (memofs + len > memlen)
731	{
732	memlen *= 2;
733	names = realloc (names, memlen);
734	if (!names)
735	break;
736	}
737
738	memcpy (names + memofs, name, len);
739	memofs += len;
740	}
741	}
742
743	errorno = errno;
744	closedir (dirp);
745
746	if (errorno)
747	{
748	free (names);
749	errno = errorno;
750	res = -1;
751	}
752
753	*namesp = (void *)names;
754	return res;
755	}
756
757	/*****************************************************************************/
758
759	static void *aio_proc (void *thr_arg)
760	{
761	aio_req req;
762	int type;
763
764	do
765	{
766	pthread_mutex_lock (&reqlock);
767
768	for (;;)
769	{
770	req = reqs;
771
772	if (reqs)
773	{
774	reqs = reqs->next;
775	if (!reqs) reqe = 0;
776	}
777
778	if (req)
779	break;
780
781	pthread_cond_wait (&reqwait, &reqlock);
782	}
783
784	pthread_mutex_unlock (&reqlock);
785
786	errno = 0; /* strictly unnecessary */
787
788	if (!req->cancelled)
789	switch (type = req->type) /* remember type for QUIT check */
790	{
791	case REQ_READ: req->result = pread (req->fd, req->dataptr, req->length, req->offset); break;
792	case REQ_WRITE: req->result = pwrite (req->fd, req->dataptr, req->length, req->offset); break;
793
794	case REQ_READAHEAD: req->result = readahead (req->fd, req->offset, req->length); break;
795	case REQ_SENDFILE: req->result = sendfile_ (req->fd, req->fd2, req->offset, req->length); break;
796
797	case REQ_STAT: req->result = stat (req->dataptr, req->statdata); break;
798	case REQ_LSTAT: req->result = lstat (req->dataptr, req->statdata); break;
799	case REQ_FSTAT: req->result = fstat (req->fd , req->statdata); break;
800
801	case REQ_OPEN: req->result = open (req->dataptr, req->fd, req->mode); break;
802	case REQ_CLOSE: req->result = close (req->fd); break;
803	case REQ_UNLINK: req->result = unlink (req->dataptr); break;
804	case REQ_RMDIR: req->result = rmdir (req->dataptr); break;
805	case REQ_RENAME: req->result = rename (req->data2ptr, req->dataptr); break;
806	case REQ_LINK: req->result = link (req->data2ptr, req->dataptr); break;
807	case REQ_SYMLINK: req->result = symlink (req->data2ptr, req->dataptr); break;
808
809	case REQ_FDATASYNC: req->result = fdatasync (req->fd); break;
810	case REQ_FSYNC: req->result = fsync (req->fd); break;
811	case REQ_READDIR: req->result = scandir_ (req->dataptr, &req->data2ptr); break;
812
813	case REQ_SLEEP:
814	{
815	struct timeval tv;
816
817	tv.tv_sec = req->fd;
818	tv.tv_usec = req->fd2;
819
820	req->result = select (0, 0, 0, 0, &tv);
821	}
822
823	case REQ_QUIT:
824	break;
825
826	default:
827	req->result = ENOSYS;
828	break;
829	}
830
831	req->errorno = errno;
832
833	pthread_mutex_lock (&reslock);
834
835	req->next = 0;
836
837	if (rese)
838	{
839	rese->next = req;
840	rese = req;
841	}
842	else
843	{
844	rese = ress = req;
845
846	/* write a dummy byte to the pipe so fh becomes ready */
847	write (respipe [1], &respipe, 1);
848	}
849
850	pthread_mutex_unlock (&reslock);
851	}
852	while (type != REQ_QUIT);
853
854	return 0;
855	}
856
857	/*****************************************************************************/
858
859	static void atfork_prepare (void)
860	{
861	pthread_mutex_lock (&reqlock);
862	pthread_mutex_lock (&reslock);
863	#if !HAVE_PREADWRITE
864	pthread_mutex_lock (&preadwritelock);
865	#endif
866	#if !HAVE_READDIR_R
867	pthread_mutex_lock (&readdirlock);
868	#endif
869	}
870
871	static void atfork_parent (void)
872	{
873	#if !HAVE_READDIR_R
874	pthread_mutex_unlock (&readdirlock);
875	#endif
876	#if !HAVE_PREADWRITE
877	pthread_mutex_unlock (&preadwritelock);
878	#endif
879	pthread_mutex_unlock (&reslock);
880	pthread_mutex_unlock (&reqlock);
881	}	528	}
882		529
883	static void atfork_child (void)	530	static void atfork_child (void)
884	{	531	{
885	aio_req prv;
886
887	started = 0;
888
889	while (reqs)
890	{
891	prv = reqs;
892	reqs = prv->next;
893	req_free (prv);
894	}
895
896	reqs = reqe = 0;
897
898	while (ress)
899	{
900	prv = ress;
901	ress = prv->next;
902	req_free (prv);
903	}
904
905	ress = rese = 0;
906
907	close (respipe [0]);
908	close (respipe [1]);
909	create_pipe ();	532	create_respipe ();
		533	}
910		534
911	atfork_parent ();	535	static SV *
		536	get_cb (SV *cb_sv)
		537	{
		538	SvGETMAGIC (cb_sv);
		539	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
912	}	540	}
913		541
914	#define dREQ \	542	#define dREQ \
		543	SV *cb_cv; \
915	aio_req req; \	544	aio_req req; \
		545	int req_pri = next_pri; \
		546	next_pri = EIO_PRI_DEFAULT; \
916	\	547	\
917	if (SvOK (callback) && !SvROK (callback)) \	548	cb_cv = get_cb (callback); \
918	croak ("callback must be undef or of reference type"); \
919	\	549	\
920	Newz (0, req, 1, aio_cb); \	550	Newz (0, req, 1, eio_req); \
921	if (!req) \	551	if (!req) \
922	croak ("out of memory during aio_req allocation"); \	552	croak ("out of memory during eio_req allocation"); \
923	\	553	\
924	req->callback = newSVsv (callback)	554	req->callback = SvREFCNT_inc (cb_cv); \
		555	req->pri = req_pri
925		556
926	#define REQ_SEND \	557	#define REQ_SEND \
		558	PUTBACK; \
927	req_send (req); \	559	req_submit (req); \
		560	SPAGAIN; \
928	\	561	\
929	if (GIMME_V != G_VOID) \	562	if (GIMME_V != G_VOID) \
930	XPUSHs (req_sv (req, AIO_REQ_KLASS));	563	XPUSHs (req_sv (req, AIO_REQ_KLASS));
931		564
932	MODULE = IO::AIO PACKAGE = IO::AIO	565	MODULE = IO::AIO PACKAGE = IO::AIO
933		566
934	PROTOTYPES: ENABLE	567	PROTOTYPES: ENABLE
935		568
936	BOOT:	569	BOOT:
937	{	570	{
		571	static const struct {
		572	const char *name;
		573	IV iv;
		574	} *civ, const_iv[] = {
		575	# define const_iv(name, value) { # name, (IV) value },
		576	# define const_eio(name) { # name, (IV) EIO_ ## name },
		577	const_iv (EXDEV , EXDEV)
		578	const_iv (ENOSYS , ENOSYS)
		579	const_iv (O_RDONLY, O_RDONLY)
		580	const_iv (O_WRONLY, O_WRONLY)
		581	const_iv (O_CREAT , O_CREAT)
		582	const_iv (O_TRUNC , O_TRUNC)
		583	#ifndef _WIN32
		584	const_iv (S_IFIFO , S_IFIFO)
		585	#endif
		586	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)
		587	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		588	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)
		589	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		590	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		591	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		592
		593	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		594	const_eio (SYNC_FILE_RANGE_WRITE)
		595	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		596
		597	const_eio (READDIR_DENTS)
		598	const_eio (READDIR_DIRS_FIRST)
		599	const_eio (READDIR_STAT_ORDER)
		600	const_eio (READDIR_FOUND_UNKNOWN)
		601
		602	const_eio (DT_UNKNOWN)
		603	const_eio (DT_FIFO)
		604	const_eio (DT_CHR)
		605	const_eio (DT_DIR)
		606	const_eio (DT_BLK)
		607	const_eio (DT_REG)
		608	const_eio (DT_LNK)
		609	const_eio (DT_SOCK)
		610	const_eio (DT_WHT)
		611	};
		612
938	HV *stash = gv_stashpv ("IO::AIO", 1);	613	stash = gv_stashpv ("IO::AIO", 1);
939	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));
940	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));
941	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
942		614
		615	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
		616	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
		617
943	create_pipe ();	618	create_respipe ();
944	pthread_atfork (atfork_prepare, atfork_parent, atfork_child);
945	}
946		619
		620	if (eio_init (want_poll, done_poll) < 0)
		621	croak ("IO::AIO: unable to initialise eio library");
		622
		623	/* atfork child called in fifo order, so before eio's handler */
		624	X_THREAD_ATFORK (0, 0, atfork_child);
		625	}
		626
947	void	627	void
948	min_parallel (nthreads)	628	max_poll_reqs (int nreqs)
949	int nthreads
950	PROTOTYPE: $	629	PROTOTYPE: $
		630	CODE:
		631	eio_set_max_poll_reqs (nreqs);
951		632
952	void	633	void
953	max_parallel (nthreads)	634	max_poll_time (double nseconds)
954	int nthreads
955	PROTOTYPE: $	635	PROTOTYPE: $
956
957	int
958	max_outstanding (nreqs)
959	int nreqs
960	PROTOTYPE: $
961	CODE:	636	CODE:
962	RETVAL = max_outstanding;	637	eio_set_max_poll_time (nseconds);
		638
		639	void
		640	min_parallel (int nthreads)
		641	PROTOTYPE: $
		642	CODE:
		643	eio_set_min_parallel (nthreads);
		644
		645	void
		646	max_parallel (int nthreads)
		647	PROTOTYPE: $
		648	CODE:
		649	eio_set_max_parallel (nthreads);
		650
		651	void
		652	max_idle (int nthreads)
		653	PROTOTYPE: $
		654	CODE:
		655	eio_set_max_idle (nthreads);
		656
		657	void
		658	max_outstanding (int maxreqs)
		659	PROTOTYPE: $
		660	CODE:
963	max_outstanding = nreqs;	661	max_outstanding = maxreqs;
964		662
965	void	663	void
966	aio_open (pathname,flags,mode,callback=&PL_sv_undef)	664	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
967	SV * pathname
968	int flags
969	int mode
970	SV * callback
971	PROTOTYPE: $$$;$	665	PROTOTYPE: $$$;$
972	PPCODE:	666	PPCODE:
973	{	667	{
974	dREQ;	668	dREQ;
975		669
976	req->type = REQ_OPEN;	670	req->type = EIO_OPEN;
977	req->data = newSVsv (pathname);	671	req->sv1 = newSVsv (pathname);
978	req->dataptr = SvPVbyte_nolen (req->data);	672	req->ptr1 = SvPVbyte_nolen (req->sv1);
979	req->fd = flags;	673	req->int1 = flags;
980	req->mode = mode;	674	req->int2 = mode;
981		675
982	REQ_SEND;	676	REQ_SEND;
983	}	677	}
984		678
985	void	679	void
986	aio_close (fh,callback=&PL_sv_undef)	680	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
987	SV * fh
988	SV * callback
989	PROTOTYPE: $;$	681	PROTOTYPE: $;$
990	ALIAS:	682	ALIAS:
991	aio_close = REQ_CLOSE
992	aio_fsync = REQ_FSYNC	683	aio_fsync = EIO_FSYNC
993	aio_fdatasync = REQ_FDATASYNC	684	aio_fdatasync = EIO_FDATASYNC
994	PPCODE:	685	PPCODE:
995	{	686	{
		687	int fd = s_fileno_croak (fh, 0);
996	dREQ;	688	dREQ;
997		689
998	req->type = ix;	690	req->type = ix;
999	req->fh = newSVsv (fh);	691	req->sv1 = newSVsv (fh);
1000	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	692	req->int1 = fd;
1001		693
1002	REQ_SEND (req);	694	REQ_SEND (req);
1003	}	695	}
1004		696
1005	void	697	void
		698	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		699	PROTOTYPE: $$$$;$
		700	PPCODE:
		701	{
		702	int fd = s_fileno_croak (fh, 0);
		703	dREQ;
		704
		705	req->type = EIO_SYNC_FILE_RANGE;
		706	req->sv1 = newSVsv (fh);
		707	req->int1 = fd;
		708	req->offs = offset;
		709	req->size = nbytes;
		710	req->int2 = flags;
		711
		712	REQ_SEND (req);
		713	}
		714
		715	void
		716	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		717	PROTOTYPE: $;$
		718	PPCODE:
		719	{
		720	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
		721	int fd = s_fileno_croak (fh, 0);
		722	dREQ;
		723
		724	if (close_pipe < 0)
		725	{
		726	int pipefd [2];
		727
		728	if (pipe (pipefd) < 0
		729	|| close (pipefd [1]) < 0
		730	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)
		731	abort (); /*D*/
		732
		733	close_pipe = pipefd [0];
		734	}
		735
		736	req->type = EIO_DUP2;
		737	req->int1 = close_pipe;
		738	req->sv2 = newSVsv (fh);
		739	req->int2 = fd;
		740
		741	REQ_SEND (req);
		742	}
		743
		744	void
1006	aio_read (fh,offset,length,data,dataoffset,callback=&PL_sv_undef)	745	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1007	SV * fh
1008	UV offset
1009	UV length
1010	SV * data
1011	UV dataoffset
1012	SV * callback
1013	ALIAS:	746	ALIAS:
1014	aio_read = REQ_READ	747	aio_read = EIO_READ
1015	aio_write = REQ_WRITE	748	aio_write = EIO_WRITE
1016	PROTOTYPE: $$$$$;$	749	PROTOTYPE: $$$$$;$
1017	PPCODE:	750	PPCODE:
1018	{	751	{
1019	aio_req req;
1020	STRLEN svlen;	752	STRLEN svlen;
		753	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
1021	char *svptr = SvPVbyte (data, svlen);	754	char *svptr = SvPVbyte (data, svlen);
1022		755	UV len = SvUV (length);
1023	SvUPGRADE (data, SVt_PV);
1024	SvPOK_on (data);
1025		756
1026	if (dataoffset < 0)	757	if (dataoffset < 0)
1027	dataoffset += svlen;	758	dataoffset += svlen;
1028		759
1029	if (dataoffset < 0 || dataoffset > svlen)	760	if (dataoffset < 0 || dataoffset > svlen)
1030	croak ("data offset outside of string");	761	croak ("dataoffset outside of data scalar");
1031		762
1032	if (ix == REQ_WRITE)	763	if (ix == EIO_WRITE)
1033	{	764	{
1034	/* write: check length and adjust. */	765	/* write: check length and adjust. */
1035	if (length < 0 || length + dataoffset > svlen)	766	if (!SvOK (length) || len + dataoffset > svlen)
1036	length = svlen - dataoffset;	767	len = svlen - dataoffset;
1037	}	768	}
1038	else	769	else
1039	{	770	{
1040	/* read: grow scalar as necessary */	771	/* read: check type and grow scalar as necessary */
		772	SvUPGRADE (data, SVt_PV);
1041	svptr = SvGROW (data, length + dataoffset);	773	svptr = SvGROW (data, len + dataoffset + 1);
1042	}	774	}
1043
1044	if (length < 0)
1045	croak ("length must not be negative");
1046		775
1047	{	776	{
1048	dREQ;	777	dREQ;
1049		778
1050	req->type = ix;	779	req->type = ix;
1051	req->fh = newSVsv (fh);	780	req->sv1 = newSVsv (fh);
1052	req->fd = PerlIO_fileno (ix == REQ_READ ? IoIFP (sv_2io (fh))	781	req->int1 = fd;
1053	: IoOFP (sv_2io (fh)));	782	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1054	req->offset = offset;	783	req->size = len;
1055	req->length = length;
1056	req->data = SvREFCNT_inc (data);	784	req->sv2 = SvREFCNT_inc (data);
1057	req->dataptr = (char *)svptr + dataoffset;	785	req->ptr2 = (char *)svptr + dataoffset;
		786	req->stroffset = dataoffset;
1058		787
1059	if (!SvREADONLY (data))	788	if (!SvREADONLY (data))
1060	{	789	{
1061	SvREADONLY_on (data);	790	SvREADONLY_on (data);
1062	req->data2ptr = (void *)data;	791	req->flags |= FLAG_SV2_RO_OFF;
1063	}	792	}
1064		793
1065	REQ_SEND;	794	REQ_SEND;
1066	}	795	}
1067	}	796	}
1068		797
1069	void	798	void
		799	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
		800	PROTOTYPE: $$;$
		801	PPCODE:
		802	{
		803	SV *data;
		804	dREQ;
		805
		806	req->type = EIO_READLINK;
		807	req->sv1 = newSVsv (path);
		808	req->ptr1 = SvPVbyte_nolen (req->sv1);
		809
		810	REQ_SEND;
		811	}
		812
		813	void
1070	aio_sendfile (out_fh,in_fh,in_offset,length,callback=&PL_sv_undef)	814	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1071	SV * out_fh
1072	SV * in_fh
1073	UV in_offset
1074	UV length
1075	SV * callback
1076	PROTOTYPE: $$$$;$	815	PROTOTYPE: $$$$;$
1077	PPCODE:	816	PPCODE:
1078	{	817	{
		818	int ifd = s_fileno_croak (in_fh , 0);
		819	int ofd = s_fileno_croak (out_fh, 1);
1079	dREQ;	820	dREQ;
1080		821
1081	req->type = REQ_SENDFILE;	822	req->type = EIO_SENDFILE;
1082	req->fh = newSVsv (out_fh);	823	req->sv1 = newSVsv (out_fh);
1083	req->fd = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	824	req->int1 = ofd;
1084	req->fh2 = newSVsv (in_fh);	825	req->sv2 = newSVsv (in_fh);
1085	req->fd2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	826	req->int2 = ifd;
1086	req->offset = in_offset;	827	req->offs = in_offset;
1087	req->length = length;	828	req->size = length;
1088		829
1089	REQ_SEND;	830	REQ_SEND;
1090	}	831	}
1091		832
1092	void	833	void
1093	aio_readahead (fh,offset,length,callback=&PL_sv_undef)	834	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1094	SV * fh
1095	UV offset
1096	IV length
1097	SV * callback
1098	PROTOTYPE: $$$;$	835	PROTOTYPE: $$$;$
1099	PPCODE:	836	PPCODE:
1100	{	837	{
		838	int fd = s_fileno_croak (fh, 0);
1101	dREQ;	839	dREQ;
1102		840
1103	req->type = REQ_READAHEAD;	841	req->type = EIO_READAHEAD;
1104	req->fh = newSVsv (fh);	842	req->sv1 = newSVsv (fh);
1105	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh)));	843	req->int1 = fd;
1106	req->offset = offset;	844	req->offs = offset;
1107	req->length = length;	845	req->size = length;
1108		846
1109	REQ_SEND;	847	REQ_SEND;
1110	}	848	}
1111		849
1112	void	850	void
1113	aio_stat (fh_or_path,callback=&PL_sv_undef)	851	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
1114	SV * fh_or_path
1115	SV * callback
1116	ALIAS:	852	ALIAS:
1117	aio_stat = REQ_STAT	853	aio_stat = EIO_STAT
1118	aio_lstat = REQ_LSTAT	854	aio_lstat = EIO_LSTAT
1119	PPCODE:	855	PPCODE:
1120	{	856	{
1121	dREQ;	857	dREQ;
1122		858
1123	New (0, req->statdata, 1, Stat_t);	859	req->sv1 = newSVsv (fh_or_path);
1124	if (!req->statdata)
1125	{
1126	req_free (req);
1127	croak ("out of memory during aio_req->statdata allocation");
1128	}
1129		860
1130	if (SvPOK (fh_or_path))	861	if (SvPOK (req->sv1))
1131	{	862	{
1132	req->type = ix;	863	req->type = ix;
1133	req->data = newSVsv (fh_or_path);
1134	req->dataptr = SvPVbyte_nolen (req->data);	864	req->ptr1 = SvPVbyte_nolen (req->sv1);
1135	}	865	}
1136	else	866	else
1137	{	867	{
1138	req->type = REQ_FSTAT;	868	req->type = EIO_FSTAT;
1139	req->fh = newSVsv (fh_or_path);
1140	req->fd = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	869	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1141	}	870	}
1142		871
1143	REQ_SEND;	872	REQ_SEND;
1144	}	873	}
1145		874
1146	void	875	void
		876	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
		877	PPCODE:
		878	{
		879	dREQ;
		880
		881	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
		882	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
		883	req->sv1 = newSVsv (fh_or_path);
		884
		885	if (SvPOK (req->sv1))
		886	{
		887	req->type = EIO_UTIME;
		888	req->ptr1 = SvPVbyte_nolen (req->sv1);
		889	}
		890	else
		891	{
		892	req->type = EIO_FUTIME;
		893	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		894	}
		895
		896	REQ_SEND;
		897	}
		898
		899	void
		900	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
		901	PPCODE:
		902	{
		903	dREQ;
		904
		905	req->sv1 = newSVsv (fh_or_path);
		906	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
		907
		908	if (SvPOK (req->sv1))
		909	{
		910	req->type = EIO_TRUNCATE;
		911	req->ptr1 = SvPVbyte_nolen (req->sv1);
		912	}
		913	else
		914	{
		915	req->type = EIO_FTRUNCATE;
		916	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		917	}
		918
		919	REQ_SEND;
		920	}
		921
		922	void
		923	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
		924	ALIAS:
		925	aio_chmod = EIO_CHMOD
		926	aio_mkdir = EIO_MKDIR
		927	PPCODE:
		928	{
		929	dREQ;
		930
		931	req->int2 = mode;
		932	req->sv1 = newSVsv (fh_or_path);
		933
		934	if (SvPOK (req->sv1))
		935	{
		936	req->type = ix;
		937	req->ptr1 = SvPVbyte_nolen (req->sv1);
		938	}
		939	else
		940	{
		941	req->type = EIO_FCHMOD;
		942	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		943	}
		944
		945	REQ_SEND;
		946	}
		947
		948	void
		949	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)
		950	PPCODE:
		951	{
		952	dREQ;
		953
		954	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
		955	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
		956	req->sv1 = newSVsv (fh_or_path);
		957
		958	if (SvPOK (req->sv1))
		959	{
		960	req->type = EIO_CHOWN;
		961	req->ptr1 = SvPVbyte_nolen (req->sv1);
		962	}
		963	else
		964	{
		965	req->type = EIO_FCHOWN;
		966	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		967	}
		968
		969	REQ_SEND;
		970	}
		971
		972	void
		973	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		974	PPCODE:
		975	{
		976	dREQ;
		977
		978	req->type = EIO_READDIR;
		979	req->sv1 = newSVsv (pathname);
		980	req->ptr1 = SvPVbyte_nolen (req->sv1);
		981	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		982
		983	if (flags & EIO_READDIR_DENTS)
		984	req->int1 |= EIO_READDIR_CUSTOM2;
		985
		986	REQ_SEND;
		987	}
		988
		989	void
1147	aio_unlink (pathname,callback=&PL_sv_undef)	990	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1148	SV * pathname
1149	SV * callback
1150	ALIAS:	991	ALIAS:
1151	aio_unlink = REQ_UNLINK	992	aio_unlink = EIO_UNLINK
1152	aio_rmdir = REQ_RMDIR	993	aio_rmdir = EIO_RMDIR
1153	aio_readdir = REQ_READDIR	994	aio_readdir = EIO_READDIR
1154	PPCODE:	995	PPCODE:
1155	{	996	{
1156	dREQ;	997	dREQ;
1157		998
1158	req->type = ix;	999	req->type = ix;
1159	req->data = newSVsv (pathname);	1000	req->sv1 = newSVsv (pathname);
1160	req->dataptr = SvPVbyte_nolen (req->data);	1001	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1002
		1003	REQ_SEND;
		1004	}
		1005
		1006	void
		1007	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)
		1008	ALIAS:
		1009	aio_link = EIO_LINK
		1010	aio_symlink = EIO_SYMLINK
		1011	aio_rename = EIO_RENAME
		1012	PPCODE:
		1013	{
		1014	dREQ;
		1015
		1016	req->type = ix;
		1017	req->sv1 = newSVsv (oldpath);
		1018	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1019	req->sv2 = newSVsv (newpath);
		1020	req->ptr2 = SvPVbyte_nolen (req->sv2);
1161		1021
1162	REQ_SEND;	1022	REQ_SEND;
1163	}	1023	}
1164		1024
1165	void	1025	void
1166	aio_link (oldpath,newpath,callback=&PL_sv_undef)	1026	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)
1167	SV * oldpath
1168	SV * newpath
1169	SV * callback
1170	ALIAS:
1171	aio_link = REQ_LINK
1172	aio_symlink = REQ_SYMLINK
1173	aio_rename = REQ_RENAME
1174	PPCODE:	1027	PPCODE:
1175	{	1028	{
1176	dREQ;	1029	dREQ;
1177		1030
1178	req->type = ix;	1031	req->type = EIO_MKNOD;
1179	req->fh = newSVsv (oldpath);	1032	req->sv1 = newSVsv (pathname);
1180	req->data2ptr = SvPVbyte_nolen (req->fh);	1033	req->ptr1 = SvPVbyte_nolen (req->sv1);
1181	req->data = newSVsv (newpath);	1034	req->int2 = (mode_t)mode;
1182	req->dataptr = SvPVbyte_nolen (req->data);	1035	req->offs = dev;
1183		1036
1184	REQ_SEND;	1037	REQ_SEND;
1185	}	1038	}
1186		1039
1187	void	1040	void
1188	aio_sleep (delay,callback=&PL_sv_undef)	1041	aio_busy (double delay, SV *callback=&PL_sv_undef)
1189	double delay
1190	SV * callback
1191	PPCODE:	1042	PPCODE:
1192	{	1043	{
1193	dREQ;	1044	dREQ;
1194		1045
1195	req->type = REQ_SLEEP;	1046	req->type = EIO_BUSY;
1196	req->fd = delay < 0. ? 0 : delay;	1047	req->nv1 = delay < 0. ? 0. : delay;
1197	req->fd2 = delay < 0. ? 0 : 1000. * (delay - req->fd);
1198		1048
1199	REQ_SEND;	1049	REQ_SEND;
1200	}	1050	}
1201		1051
1202	void	1052	void
1203	aio_group (callback=&PL_sv_undef)	1053	aio_group (SV *callback=&PL_sv_undef)
1204	SV * callback
1205	PROTOTYPE: ;$	1054	PROTOTYPE: ;$
1206	PPCODE:	1055	PPCODE:
1207	{	1056	{
1208	dREQ;	1057	dREQ;
		1058
1209	req->type = REQ_GROUP;	1059	req->type = EIO_GROUP;
		1060
1210	req_send (req);	1061	req_submit (req);
1211	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1062	XPUSHs (req_sv (req, AIO_GRP_KLASS));
1212	}	1063	}
		1064
		1065	void
		1066	aio_nop (SV *callback=&PL_sv_undef)
		1067	ALIAS:
		1068	aio_nop = EIO_NOP
		1069	aio_sync = EIO_SYNC
		1070	PPCODE:
		1071	{
		1072	dREQ;
		1073
		1074	req->type = ix;
		1075
		1076	REQ_SEND;
		1077	}
		1078
		1079	int
		1080	aioreq_pri (int pri = 0)
		1081	PROTOTYPE: ;$
		1082	CODE:
		1083	RETVAL = next_pri;
		1084	if (items > 0)
		1085	{
		1086	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
		1087	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
		1088	next_pri = pri;
		1089	}
		1090	OUTPUT:
		1091	RETVAL
		1092
		1093	void
		1094	aioreq_nice (int nice = 0)
		1095	CODE:
		1096	nice = next_pri - nice;
		1097	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
		1098	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
		1099	next_pri = nice;
1213		1100
1214	void	1101	void
1215	flush ()	1102	flush ()
1216	PROTOTYPE:	1103	PROTOTYPE:
1217	CODE:	1104	CODE:
1218	while (nreqs)	1105	while (eio_nreqs ())
1219	{	1106	{
1220	poll_wait ();	1107	poll_wait ();
1221	poll_cb ();	1108	poll_cb ();
1222	}	1109	}
1223		1110
1224	void	1111	int
1225	poll()	1112	poll()
1226	PROTOTYPE:	1113	PROTOTYPE:
1227	CODE:	1114	CODE:
1228	if (nreqs)
1229	{
1230	poll_wait ();	1115	poll_wait ();
1231	poll_cb ();	1116	RETVAL = poll_cb ();
1232	}	1117	OUTPUT:
		1118	RETVAL
1233		1119
1234	int	1120	int
1235	poll_fileno()	1121	poll_fileno()
1236	PROTOTYPE:	1122	PROTOTYPE:
1237	CODE:	1123	CODE:
…		…
1249		1135
1250	void	1136	void
1251	poll_wait()	1137	poll_wait()
1252	PROTOTYPE:	1138	PROTOTYPE:
1253	CODE:	1139	CODE:
1254	if (nreqs)
1255	poll_wait ();	1140	poll_wait ();
1256		1141
1257	int	1142	int
1258	nreqs()	1143	nreqs()
1259	PROTOTYPE:	1144	PROTOTYPE:
1260	CODE:	1145	CODE:
1261	RETVAL = nreqs;	1146	RETVAL = eio_nreqs ();
1262	OUTPUT:	1147	OUTPUT:
1263	RETVAL	1148	RETVAL
1264		1149
		1150	int
		1151	nready()
		1152	PROTOTYPE:
		1153	CODE:
		1154	RETVAL = eio_nready ();
		1155	OUTPUT:
		1156	RETVAL
		1157
		1158	int
		1159	npending()
		1160	PROTOTYPE:
		1161	CODE:
		1162	RETVAL = eio_npending ();
		1163	OUTPUT:
		1164	RETVAL
		1165
		1166	int
		1167	nthreads()
		1168	PROTOTYPE:
		1169	CODE:
		1170	RETVAL = eio_nthreads ();
		1171	OUTPUT:
		1172	RETVAL
		1173
		1174	int
		1175	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1176	PROTOTYPE: $$$$
		1177	CODE:
		1178	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
		1179	RETVAL = posix_fadvise (fh, offset, length, advice);
		1180	#else
		1181	RETVAL = errno = ENOSYS;
		1182	#endif
		1183	OUTPUT:
		1184	RETVAL
		1185
		1186	ssize_t
		1187	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1188	PROTOTYPE: $$$$
		1189	CODE:
		1190	eio_sendfile_sync (ofh, ifh, offset, count);
		1191
		1192	void _on_next_submit (SV *cb)
		1193	CODE:
		1194	SvREFCNT_dec (on_next_submit);
		1195	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		1196
1265	PROTOTYPES: DISABLE	1197	PROTOTYPES: DISABLE
1266		1198
1267	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1199	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1268		1200
1269	void	1201	void
1270	cancel (aio_req_ornot req)	1202	cancel (aio_req_ornot req)
1271	PROTOTYPE:
1272	CODE:	1203	CODE:
1273	req_cancel (req);	1204	eio_cancel (req);
		1205
		1206	void
		1207	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
		1208	PPCODE:
		1209	{
		1210	if (GIMME_V != G_VOID)
		1211	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1212
		1213	if (items > 1)
		1214	{
		1215	SV *cb_cv =get_cb (callback);
		1216
		1217	SvREFCNT_dec (req->callback);
		1218	req->callback = SvREFCNT_inc (cb_cv);
		1219	}
		1220	}
1274		1221
1275	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1222	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1276		1223
1277	void	1224	void
1278	add (aio_req grp, ...)	1225	add (aio_req grp, ...)
1279	PPCODE:	1226	PPCODE:
1280	{	1227	{
1281	int i;	1228	int i;
1282		1229
1283	if (grp->fd == 2)	1230	if (grp->int1 == 2)
1284	croak ("cannot add requests to IO::AIO::GRP after the group finished");	1231	croak ("cannot add requests to IO::AIO::GRP after the group finished");
1285		1232
1286	for (i = 1; i < items; ++i )	1233	for (i = 1; i < items; ++i )
1287	{	1234	{
		1235	aio_req req;
		1236
1288	if (GIMME_V != G_VOID)	1237	if (GIMME_V != G_VOID)
1289	XPUSHs (sv_2mortal (newSVsv (ST (i))));	1238	XPUSHs (sv_2mortal (newSVsv (ST (i))));
1290		1239
1291	aio_req req = SvAIO_REQ (ST (i));	1240	req = SvAIO_REQ (ST (i));
1292		1241
1293	if (req)	1242	if (req)
1294	{	1243	eio_grp_add (grp, req);
1295	++grp->length;
1296	req->grp = grp;
1297
1298	req->grp_prev = 0;
1299	req->grp_next = grp->grp_first;
1300
1301	if (grp->grp_first)
1302	grp->grp_first->grp_prev = req;
1303
1304	grp->grp_first = req;
1305	}	1244	}
1306	}
1307	}	1245	}
		1246
		1247	void
		1248	cancel_subs (aio_req_ornot req)
		1249	CODE:
		1250	req_cancel_subs (req);
1308		1251
1309	void	1252	void
1310	result (aio_req grp, ...)	1253	result (aio_req grp, ...)
1311	CODE:	1254	CODE:
1312	{	1255	{
1313	int i;	1256	int i;
		1257	AV *av;
		1258
		1259	grp->errorno = errno;
		1260
1314	AV *av = newAV ();	1261	av = newAV ();
		1262	av_extend (av, items - 1);
1315		1263
1316	for (i = 1; i < items; ++i )	1264	for (i = 1; i < items; ++i )
1317	av_push (av, newSVsv (ST (i)));	1265	av_push (av, newSVsv (ST (i)));
1318		1266
1319	SvREFCNT_dec (grp->data);	1267	SvREFCNT_dec (grp->sv1);
1320	grp->data = (SV *)av;	1268	grp->sv1 = (SV *)av;
1321	}	1269	}
1322		1270
1323	void	1271	void
1324	lock (aio_req grp)	1272	errno (aio_req grp, int errorno = errno)
1325	CODE:	1273	CODE:
1326	++grp->length;	1274	grp->errorno = errorno;
1327		1275
1328	void	1276	void
1329	unlock (aio_req grp)
1330	CODE:
1331	aio_grp_dec (grp);
1332
1333	void
1334	feeder_limit (aio_req grp, int limit)	1277	limit (aio_req grp, int limit)
1335	CODE:	1278	CODE:
1336	grp->fd2 = limit;	1279	eio_grp_limit (grp, limit);
1337	aio_grp_feed (grp);
1338		1280
1339	void	1281	void
1340	set_feeder (aio_req grp, SV *callback=&PL_sv_undef)	1282	feed (aio_req grp, SV *callback=&PL_sv_undef)
1341	CODE:	1283	CODE:
1342	{	1284	{
1343	SvREFCNT_dec (grp->fh2);	1285	SvREFCNT_dec (grp->sv2);
1344	grp->fh2 = newSVsv (callback);	1286	grp->sv2 = newSVsv (callback);
		1287	grp->feed = aio_grp_feed;
1345		1288
1346	if (grp->fd2 <= 0)	1289	if (grp->int2 <= 0)
1347	grp->fd2 = 2;	1290	grp->int2 = 2;
1348		1291
1349	aio_grp_feed (grp);	1292	eio_grp_limit (grp, grp->int2);
1350	}	1293	}
1351		1294

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