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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.153 by root, Wed Jul 15 01:36:04 2009 UTC vs.
Revision 1.245 by root, Fri Jun 23 03:23:19 2017 UTC

…		…
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <limits.h>	16	#include <limits.h>
17	#include <fcntl.h>	17	#include <fcntl.h>
18	#include <sched.h>	18	#include <sched.h>
19		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
		24	/* the incompetent fool that created musl keeps __linux__, refuses
		25	* to implement any linux standard apis, and also has no way to test
		26	* for his broken iplementation. don't complain to me if this fails
		27	* for you.
		28	*/
		29	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		30	# include <linux/fs.h>
		31	# ifdef FS_IOC_FIEMAP
		32	# include <linux/types.h>
		33	# include <linux/fiemap.h>
		34	# define HAVE_FIEMAP 1
		35	# endif
		36	#endif
		37
20	/* perl namespace pollution */	38	/* perl namespace pollution */
21	#undef VERSION	39	#undef VERSION
22
23	#ifdef _WIN32
24
25	# define EIO_STRUCT_DIRENT Direntry_t
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
61	#else
62
63	# include <sys/time.h>
64	# include <sys/select.h>
65	# include <unistd.h>
66	# include <utime.h>
67	# include <signal.h>
68	# define EIO_STRUCT_DIRENT struct dirent
69
70	#endif
71		40
72	/* perl stupidly overrides readdir and maybe others */	41	/* perl stupidly overrides readdir and maybe others */
73	/* with thread-unsafe versions, imagine that :( */	42	/* with thread-unsafe versions, imagine that :( */
74	#undef readdir	43	#undef readdir
75	#undef opendir	44	#undef opendir
76	#undef closedir	45	#undef closedir
77		46
		47	#ifdef _WIN32
		48
		49	// perl overrides all those nice libc functions
		50
		51	#undef malloc
		52	#undef free
		53	#undef open
		54	#undef read
		55	#undef write
		56	#undef send
		57	#undef recv
		58	#undef stat
		59	#undef lstat
		60	#undef fstat
		61	#undef truncate
		62	#undef ftruncate
		63	#undef open
		64	#undef link
		65	#undef close
		66	#undef unlink
		67	#undef mkdir
		68	#undef rmdir
		69	#undef rename
		70	#undef lseek
		71	#undef opendir
		72	#undef readdir
		73	#undef closedir
		74	#undef chmod
		75	#undef fchmod
		76	#undef dup
		77	#undef dup2
		78	#undef abort
		79	#undef pipe
		80
		81	#define EIO_STRUCT_STAT struct _stati64
78	#define EIO_STRUCT_STAT Stat_t	82	#define EIO_STRUCT_STATI64
79		83
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	84	#else
86	# define VAL64 NV	85
87	# define SvVAL64 SvNV	86	#include <sys/time.h>
88	# define newSVval64 newSVnv	87	#include <sys/select.h>
		88	#include <unistd.h>
		89	#include <utime.h>
		90	#include <signal.h>
		91
		92	#define EIO_STRUCT_STAT Stat_t
		93
89	#endif	94	#endif
90		95
91	/*****************************************************************************/	96	/*****************************************************************************/
92		97
93	#if __GNUC__ >= 3	98	#if __GNUC__ >= 3
…		…
99	#define expect_false(expr) expect ((expr) != 0, 0)	104	#define expect_false(expr) expect ((expr) != 0, 0)
100	#define expect_true(expr) expect ((expr) != 0, 1)	105	#define expect_true(expr) expect ((expr) != 0, 1)
101		106
102	/*****************************************************************************/	107	/*****************************************************************************/
103		108
104	static HV *stash;
105	typedef SV SV8; /* byte-sv, used for argument-checking */	109	typedef SV SV8; /* byte-sv, used for argument-checking */
106	typedef int aio_rfd; /* read file desriptor */	110	typedef int aio_rfd; /* read file desriptor */
107	typedef int aio_wfd; /* write file descriptor */	111	typedef int aio_wfd; /* write file descriptor */
108		112
109	#define AIO_REQ_KLASS "IO::AIO::REQ"	113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
110	#define AIO_GRP_KLASS "IO::AIO::GRP"
111		114
112	#define EIO_REQ_MEMBERS \	115	#define EIO_REQ_MEMBERS \
113	SV *callback; \	116	SV *callback; \
114	SV *sv1, *sv2; \	117	SV *sv1, *sv2; \
		118	SV *sv3, *sv4; \
115	STRLEN stroffset; \	119	STRLEN stroffset; \
116	SV *self;	120	SV *self;
117		121
118	#define EIO_NO_WRAPPERS 1	122	#define EIO_NO_WRAPPERS 1
119		123
		124	#include "libeio/config.h"
120	#include "libeio/eio.h"	125	#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		126
147	static int req_invoke (eio_req *req);	127	static int req_invoke (eio_req *req);
148	#define EIO_FINISH(req) req_invoke (req)	128	#define EIO_FINISH(req) req_invoke (req)
149	static void req_destroy (eio_req *grp);	129	static void req_destroy (eio_req *grp);
150	#define EIO_DESTROY(req) req_destroy (req)	130	#define EIO_DESTROY(req) req_destroy (req)
151		131
		132	#include "libeio/eio.c"
		133
		134	#if !HAVE_POSIX_FADVISE
		135	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		136	#endif
		137
		138	#if !HAVE_POSIX_MADVISE
		139	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		140	#endif
		141
		142	#ifndef MAP_ANONYMOUS
		143	# ifdef MAP_ANON
		144	# define MAP_ANONYMOUS MAP_ANON
		145	# else
		146	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		147	# endif
		148	#endif
		149
		150	/* defines all sorts of constants to 0 unless they are already defined */
		151	/* also provides const_iv_ and const_niv_ macros for them */
		152	#include "def0.h"
		153
		154	#ifndef makedev
		155	# define makedev(maj,min) (((maj) << 8) | (min))
		156	#endif
		157	#ifndef major
		158	# define major(dev) ((dev) >> 8)
		159	#endif
		160	#ifndef minor
		161	# define minor(dev) ((dev) & 0xff)
		162	#endif
		163
		164	#if PAGESIZE <= 0
		165	# define PAGESIZE sysconf (_SC_PAGESIZE)
		166	#endif
		167
		168	/*****************************************************************************/
		169
		170	static void
		171	fiemap (eio_req *req)
		172	{
		173	req->result = -1;
		174
		175	#if HAVE_FIEMAP
		176	/* assume some c99 */
		177	struct fiemap *fiemap = 0;
		178	size_t end_offset;
		179	int count = req->int3;
		180
		181	req->flags |= EIO_FLAG_PTR1_FREE;
		182
		183	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		184	/* increase in 3.5kb steps */
		185	if (count < 0)
		186	count = 8;
		187
		188	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		189	errno = ENOMEM;
		190	if (!fiemap)
		191	return;
		192
		193	req->ptr1 = fiemap;
		194
		195	fiemap->fm_start = req->offs;
		196	fiemap->fm_length = req->size;
		197	fiemap->fm_flags = req->int2;
		198	fiemap->fm_extent_count = count;
		199
		200	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		201	return;
		202
		203	if (req->int3 >= 0 /* not autosizing */
		204	|| !fiemap->fm_mapped_extents /* no more extents */
		205	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		206	goto done;
		207
		208	/* else we have to loop -
		209	* it would be tempting (actually I tried that first) to just query the
		210	* number of extents needed, but linux often feels like not returning all
		211	* extents, without telling us it left any out. this complicates
		212	* this quite a bit.
		213	*/
		214
		215	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		216
		217	for (;;)
		218	{
		219	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		220	char scratch[3072];
		221	struct fiemap *incmap = (struct fiemap *)scratch;
		222
		223	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		224	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		225	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		226	incmap->fm_flags = fiemap->fm_flags;
		227	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		228
		229	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		230	return;
		231
		232	if (!incmap->fm_mapped_extents)
		233	goto done;
		234
		235	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		236	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		237	errno = ENOMEM;
		238	if (!fiemap)
		239	return;
		240
		241	req->ptr1 = fiemap;
		242
		243	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		244	{
		245	struct fiemap_extent *e = incmap->fm_extents + count;
		246
		247	if (e->fe_logical + e->fe_length >= end_offset)
		248	goto done;
		249
		250	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		251
		252	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		253	goto done;
		254
		255	}
		256	}
		257
		258	done:
		259	req->result = 0;
		260
		261	#else
		262	errno = ENOSYS;
		263	#endif
		264	}
		265
		266	/*****************************************************************************/
		267
152	enum {	268	enum {
153	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	269	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
154	};	270	};
155		271
156	#include "libeio/eio.c"
157
158	typedef eio_req *aio_req;	272	typedef eio_req *aio_req;
159	typedef eio_req *aio_req_ornot;	273	typedef eio_req *aio_req_ornot;
		274	typedef eio_wd aio_wd;
160		275
161	static SV *on_next_submit;	276	static SV *on_next_submit;
162	static int next_pri = EIO_PRI_DEFAULT;	277	static int next_pri = EIO_PRI_DEFAULT;
163	static int max_outstanding;	278	static int max_outstanding;
164		279
165	static int respipe_osf [2];
166	static s_epipe respipe;	280	static s_epipe respipe;
167		281
168	static void req_destroy (aio_req req);	282	static void req_destroy (aio_req req);
169	static void req_cancel (aio_req req);	283	static void req_cancel (aio_req req);
170		284
171	static void want_poll (void)	285	static void
		286	want_poll (void)
172	{	287	{
173	/* write a dummy byte to the pipe so fh becomes ready */	288	/* write a dummy byte to the pipe so fh becomes ready */
174	s_epipe_signal (&respipe);	289	s_epipe_signal (&respipe);
175	}	290	}
176		291
177	static void done_poll (void)	292	static void
		293	done_poll (void)
178	{	294	{
179	/* read any signals sent by the worker threads */	295	/* read any signals sent by the worker threads */
180	s_epipe_drain (&respipe);	296	s_epipe_drain (&respipe);
181	}	297	}
182		298
183	/* must be called at most once */	299	/* must be called at most once */
184	static SV *req_sv (aio_req req, const char *klass)	300	static SV *
		301	req_sv (aio_req req, HV *stash)
185	{	302	{
186	if (!req->self)	303	if (!req->self)
187	{	304	{
188	req->self = (SV *)newHV ();	305	req->self = (SV *)newHV ();
189	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	306	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
190	}	307	}
191		308
192	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	309	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
193	}	310	}
194		311
195	static aio_req SvAIO_REQ (SV *sv)	312	static SV *
		313	newSVaio_wd (aio_wd wd)
		314	{
		315	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		316	}
		317
		318	static aio_req
		319	SvAIO_REQ (SV *sv)
196	{	320	{
197	MAGIC *mg;	321	MAGIC *mg;
198		322
199	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	323	if (!SvROK (sv)
		324	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		325	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		326	&& SvSTASH (SvRV (sv)) != aio_req_stash
		327	&& !sv_derived_from (sv, "IO::AIO::REQ")))
200	croak ("object of class " AIO_REQ_KLASS " expected");	328	croak ("object of class IO::AIO::REQ expected");
201		329
202	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	330	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
203		331
204	return mg ? (aio_req)mg->mg_ptr : 0;	332	return mg ? (aio_req)mg->mg_ptr : 0;
205	}	333	}
206		334
		335	static aio_wd
		336	SvAIO_WD (SV *sv)
		337	{
		338	if (!SvROK (sv)
		339	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		340	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		341	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		342
		343	return (aio_wd)(long)SvIVX (SvRV (sv));
		344	}
		345
		346	static SV *
		347	newmortalFH (int fd, int flags)
		348	{
		349	if (fd < 0)
		350	return &PL_sv_undef;
		351
		352	GV *gv = (GV *)sv_newmortal ();
		353	char sym[64];
		354	int symlen;
		355
		356	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		357	gv_init (gv, aio_stash, sym, symlen, 0);
		358
		359	symlen = snprintf (
		360	sym,
		361	sizeof (sym),
		362	"%s&=%d",
		363	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		364	fd
		365	);
		366
		367	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		368	? (SV *)gv : &PL_sv_undef;
		369	}
		370
		371	static void
207	static void aio_grp_feed (aio_req grp)	372	aio_grp_feed (aio_req grp)
208	{	373	{
209	if (grp->sv2 && SvOK (grp->sv2))	374	if (grp->sv2 && SvOK (grp->sv2))
210	{	375	{
211	dSP;	376	dSP;
212		377
213	ENTER;	378	ENTER;
214	SAVETMPS;	379	SAVETMPS;
215	PUSHMARK (SP);	380	PUSHMARK (SP);
216	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	381	XPUSHs (req_sv (grp, aio_grp_stash));
217	PUTBACK;	382	PUTBACK;
218	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	383	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
219	SPAGAIN;	384	SPAGAIN;
220	FREETMPS;	385	FREETMPS;
221	LEAVE;	386	LEAVE;
222	}	387	}
223	}	388	}
224		389
		390	static void
225	static void req_submit (eio_req *req)	391	req_submit (eio_req *req)
226	{	392	{
227	eio_submit (req);	393	eio_submit (req);
228		394
229	if (expect_false (on_next_submit))	395	if (expect_false (on_next_submit))
230	{	396	{
…		…
237	PUTBACK;	403	PUTBACK;
238	call_sv (cb, G_DISCARD | G_EVAL);	404	call_sv (cb, G_DISCARD | G_EVAL);
239	}	405	}
240	}	406	}
241		407
		408	static int
242	static int req_invoke (eio_req *req)	409	req_invoke (eio_req *req)
243	{	410	{
244	dSP;
245
246	if (req->flags & FLAG_SV2_RO_OFF)	411	if (req->flags & FLAG_SV2_RO_OFF)
247	SvREADONLY_off (req->sv2);	412	SvREADONLY_off (req->sv2);
248		413
249	if (!EIO_CANCELLED (req) && req->callback)	414	if (!EIO_CANCELLED (req) && req->callback)
250	{	415	{
		416	dSP;
		417	static SV *sv_result_cache; /* caches the result integer SV */
		418	SV *sv_result;
		419
251	ENTER;	420	ENTER;
252	SAVETMPS;	421	SAVETMPS;
253	PUSHMARK (SP);	422	PUSHMARK (SP);
254	EXTEND (SP, 1);	423	EXTEND (SP, 1);
255		424
		425	/* do not recreate the result IV from scratch each time */
		426	if (expect_true (sv_result_cache))
		427	{
		428	sv_result = sv_result_cache; sv_result_cache = 0;
		429	SvIV_set (sv_result, req->result);
		430	SvIOK_only (sv_result);
		431	}
		432	else
		433	{
		434	sv_result = newSViv (req->result);
		435	SvREADONLY_on (sv_result);
		436	}
		437
256	switch (req->type)	438	switch (req->type)
257	{	439	{
		440	case EIO_WD_OPEN:
		441	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		442	break;
		443
258	case EIO_READDIR:	444	case EIO_READDIR:
259	{	445	{
260	SV *rv = &PL_sv_undef;	446	SV *rv = &PL_sv_undef;
261		447
262	if (req->result >= 0)	448	if (req->result >= 0)
…		…
315	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	501	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
316	}	502	}
317	break;	503	break;
318		504
319	case EIO_OPEN:	505	case EIO_OPEN:
		506	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
		507	break;
		508
		509	case EIO_STATVFS:
		510	case EIO_FSTATVFS:
320	{	511	{
321	/* convert fd to fh */
322	SV *fh = &PL_sv_undef;	512	SV *rv = &PL_sv_undef;
323		513
		514	#ifndef _WIN32
324	if (req->result >= 0)	515	if (req->result >= 0)
325	{	516	{
		517	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
326	GV *gv = (GV *)sv_newmortal ();	518	HV *hv = newHV ();
327	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	519	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
328	char sym [64];	520	* chooses to make it a struct.
329	int symlen;
330		521	*/
331	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);	522	unsigned long fsid = 0;
332	gv_init (gv, stash, sym, symlen, 0);	523	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
333		524
334	symlen = snprintf (	525	rv = sv_2mortal (newRV_noinc ((SV *)hv));
335	sym,
336	sizeof (sym),
337	"%s&=%d",
338	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
339	(int)req->result
340	);
341		526
342	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	527	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
343	fh = (SV *)gv;	528	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		529	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		530	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		531	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		532	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		533	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		534	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		535	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		536	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		537	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
344	}	538	}
		539	#endif
345		540
346	PUSHs (fh);	541	PUSHs (rv);
347	}	542	}
		543
348	break;	544	break;
349		545
350	case EIO_GROUP:	546	case EIO_GROUP:
351	req->int1 = 2; /* mark group as finished */	547	req->int1 = 2; /* mark group as finished */
352		548
…		…
364	case EIO_NOP:	560	case EIO_NOP:
365	case EIO_BUSY:	561	case EIO_BUSY:
366	break;	562	break;
367		563
368	case EIO_READLINK:	564	case EIO_READLINK:
		565	case EIO_REALPATH:
369	if (req->result > 0)	566	if (req->result > 0)
370	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	567	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
371	break;	568	break;
372		569
373	case EIO_STAT:	570	case EIO_STAT:
374	case EIO_LSTAT:	571	case EIO_LSTAT:
375	case EIO_FSTAT:	572	case EIO_FSTAT:
376	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	573	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		574
377	PL_laststatval = req->result;	575	if (!(PL_laststatval = req->result))
		576	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
378	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	577	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
379	PUSHs (sv_2mortal (newSViv (req->result)));	578
		579	PUSHs (sv_result);
		580	break;
		581
		582	case EIO_SEEK:
		583	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
380	break;	584	break;
381		585
382	case EIO_READ:	586	case EIO_READ:
383	{	587	{
384	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	588	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
385	*SvEND (req->sv2) = 0;	589	*SvEND (req->sv2) = 0;
386	SvPOK_only (req->sv2);	590	SvPOK_only (req->sv2);
387	SvSETMAGIC (req->sv2);	591	SvSETMAGIC (req->sv2);
388	PUSHs (sv_2mortal (newSViv (req->result)));	592	PUSHs (sv_result);
389	}	593	}
390	break;	594	break;
391		595
392	case EIO_DUP2:	596	case EIO_CUSTOM:
		597	if (req->feed == fiemap)
		598	{
		599	#if HAVE_FIEMAP
		600	if (!req->result)
		601	{
		602	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		603
		604	if (fiemap->fm_extent_count)
		605	{
		606	AV *av = newAV ();
		607	int i;
		608
		609	while (fiemap->fm_mapped_extents)
		610	{
		611	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		612	AV *ext_av = newAV ();
		613
		614	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		615	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		616	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		617	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		618
		619	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		620	}
		621
		622	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		623	}
		624	else
		625	{
		626	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		627	PUSHs (sv_result);
		628	}
		629	}
		630	#endif
		631	}
		632	else
		633	PUSHs (sv_result);
		634	break;
		635
		636	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
393	if (req->result > 0)	637	if (req->result > 0)
394	req->result = 0;	638	SvIV_set (sv_result, 0);
395	/* FALLTHROUGH */	639	/* FALLTHROUGH */
396		640
397	default:	641	default:
398	PUSHs (sv_2mortal (newSViv (req->result)));	642	PUSHs (sv_result);
399	break;	643	break;
400	}	644	}
401		645
402	errno = req->errorno;	646	errno = req->errorno;
403		647
404	PUTBACK;	648	PUTBACK;
405	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	649	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
406	SPAGAIN;	650	SPAGAIN;
407		651
		652	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		653	SvREFCNT_dec (sv_result);
		654	else
		655	sv_result_cache = sv_result;
		656
408	FREETMPS;	657	FREETMPS;
409	LEAVE;	658	LEAVE;
410		659
411	PUTBACK;	660	PUTBACK;
412	}	661	}
413		662
414	return !!SvTRUE (ERRSV);	663	return !!SvTRUE (ERRSV);
415	}	664	}
416		665
		666	static void
417	static void req_destroy (aio_req req)	667	req_destroy (aio_req req)
418	{	668	{
419	if (req->self)	669	if (req->self)
420	{	670	{
421	sv_unmagic (req->self, PERL_MAGIC_ext);	671	sv_unmagic (req->self, PERL_MAGIC_ext);
422	SvREFCNT_dec (req->self);	672	SvREFCNT_dec (req->self);
423	}	673	}
424		674
425	SvREFCNT_dec (req->sv1);	675	SvREFCNT_dec (req->sv1);
426	SvREFCNT_dec (req->sv2);	676	SvREFCNT_dec (req->sv2);
		677	SvREFCNT_dec (req->sv3);
		678	SvREFCNT_dec (req->sv4);
427	SvREFCNT_dec (req->callback);	679	SvREFCNT_dec (req->callback);
428		680
429	Safefree (req);	681	free (req);
430	}	682	}
431		683
		684	static void
432	static void req_cancel_subs (aio_req grp)	685	req_cancel_subs (aio_req grp)
433	{	686	{
434	aio_req sub;
435
436	if (grp->type != EIO_GROUP)	687	if (grp->type != EIO_GROUP)
437	return;	688	return;
438		689
439	SvREFCNT_dec (grp->sv2);	690	SvREFCNT_dec (grp->sv2);
440	grp->sv2 = 0;	691	grp->sv2 = 0;
441		692
442	eio_grp_cancel (grp);	693	eio_grp_cancel (grp);
443	}	694	}
444		695
		696	static void ecb_cold
		697	create_respipe (void)
		698	{
		699	if (s_epipe_renew (&respipe))
		700	croak ("IO::AIO: unable to initialize result pipe");
		701	}
		702
445	static void	703	static void
446	create_respipe (void)	704	poll_wait (void)
447	{
448	if (s_epipe_renew (&respipe))
449	croak ("unable to initialize result pipe");
450
451	respipe_osf [0] = S_TO_SOCKET (respipe.fd [0]);
452	respipe_osf [1] = S_TO_SOCKET (respipe.fd [1]);
453	}
454
455	static void poll_wait (void)
456	{	705	{
457	while (eio_nreqs ())	706	while (eio_nreqs ())
458	{	707	{
459	int size;	708	int size;
460		709
461	X_LOCK (reslock);	710	X_LOCK (EIO_POOL->reslock);
462	size = res_queue.size;	711	size = EIO_POOL->res_queue.size;
463	X_UNLOCK (reslock);	712	X_UNLOCK (EIO_POOL->reslock);
464		713
465	if (size)	714	if (size)
466	return;	715	return;
467		716
468	etp_maybe_start_thread ();	717	etp_maybe_start_thread (EIO_POOL);
469		718
470	s_epipe_wait (&respipe);	719	s_epipe_wait (&respipe);
471	}	720	}
472	}	721	}
473		722
474	static int poll_cb (void)	723	static int
		724	poll_cb (void)
475	{	725	{
476	for (;;)	726	for (;;)
477	{	727	{
478	int res = eio_poll ();	728	int res = eio_poll ();
479		729
…		…
485		735
486	poll_wait ();	736	poll_wait ();
487	}	737	}
488	}	738	}
489		739
490	static void atfork_child (void)	740	static void ecb_cold
		741	reinit (void)
491	{	742	{
492	create_respipe ();	743	create_respipe ();
		744
		745	if (eio_init (want_poll, done_poll) < 0)
		746	croak ("IO::AIO: unable to initialise eio library");
493	}	747	}
		748
		749	/*****************************************************************************/
		750
		751	#if !_POSIX_MAPPED_FILES
		752	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		753	# define munmap(addr,length) EIO_ENOSYS ()
		754	#endif
		755
		756	#if !_POSIX_MEMORY_PROTECTION
		757	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		758	#endif
		759
		760	#define MMAP_MAGIC PERL_MAGIC_ext
		761
		762	static int ecb_cold
		763	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		764	{
		765	int old_errno = errno;
		766	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		767	errno = old_errno;
		768
		769	mg->mg_obj = 0; /* just in case */
		770
		771	SvREADONLY_off (sv);
		772
		773	if (SvPVX (sv) != mg->mg_ptr)
		774	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		775
		776	SvCUR_set (sv, 0);
		777	SvPVX (sv) = 0;
		778	SvOK_off (sv);
		779
		780	return 0;
		781	}
		782
		783	static MGVTBL mmap_vtbl = {
		784	0, 0, 0, 0, mmap_free
		785	};
		786
		787	/*****************************************************************************/
494		788
495	static SV *	789	static SV *
496	get_cb (SV *cb_sv)	790	get_cb (SV *cb_sv)
497	{	791	{
498	SvGETMAGIC (cb_sv);	792	SvGETMAGIC (cb_sv);
499	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	793	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
500	}	794	}
501		795
		796	static aio_req ecb_noinline
		797	dreq (SV *callback)
		798	{
		799	SV *cb_cv;
		800	aio_req req;
		801	int req_pri = next_pri;
		802	next_pri = EIO_PRI_DEFAULT;
		803
		804	cb_cv = get_cb (callback);
		805
		806	req = calloc (sizeof (*req), 1);
		807	if (!req)
		808	croak ("out of memory during eio_req allocation");
		809
		810	req->callback = SvREFCNT_inc (cb_cv);
		811	req->pri = req_pri;
		812
		813	return req;
		814	}
		815
502	#define dREQ \	816	#define dREQ \
503	SV *cb_cv; \	817	aio_req req = dreq (callback); \
504	aio_req req; \
505	int req_pri = next_pri; \
506	next_pri = EIO_PRI_DEFAULT; \
507	\
508	cb_cv = get_cb (callback); \
509	\
510	Newz (0, req, 1, eio_req); \
511	if (!req) \
512	croak ("out of memory during eio_req allocation"); \
513	\
514	req->callback = SvREFCNT_inc (cb_cv); \
515	req->pri = req_pri
516		818
517	#define REQ_SEND \	819	#define REQ_SEND \
518	PUTBACK; \	820	PUTBACK; \
519	req_submit (req); \	821	req_submit (req); \
520	SPAGAIN; \	822	SPAGAIN; \
521	\	823	\
522	if (GIMME_V != G_VOID) \	824	if (GIMME_V != G_VOID) \
523	XPUSHs (req_sv (req, AIO_REQ_KLASS));	825	XPUSHs (req_sv (req, aio_req_stash));
		826
		827	ecb_inline void
		828	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		829	{
		830	if (expect_false (SvROK (path)))
		831	{
		832	SV *rv = SvRV (path);
		833	SV *wdob;
		834
		835	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		836	{
		837	path = AvARRAY (rv)[1];
		838	wdob = AvARRAY (rv)[0];
		839
		840	if (SvOK (wdob))
		841	{
		842	*wd = SvAIO_WD (wdob);
		843	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		844	}
		845	else
		846	*wd = EIO_INVALID_WD;
		847	}
		848	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		849	{
		850	*wd = (aio_wd)(long)SvIVX (rv);
		851	*wdsv = SvREFCNT_inc_NN (rv);
		852	*ptr = ".";
		853	return; /* path set to "." */
		854	}
		855	else
		856	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		857	}
		858
		859	*pathsv = newSVsv (path);
		860	*ptr = SvPVbyte_nolen (*pathsv);
		861	}
		862
		863	static void ecb_noinline
		864	req_set_path1 (aio_req req, SV *path)
		865	{
		866	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		867	}
		868
		869	static void ecb_noinline
		870	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		871	{
		872	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		873
		874	switch (SvTYPE (rv))
		875	{
		876	case SVt_PVIO:
		877	case SVt_PVLV:
		878	case SVt_PVGV:
		879	req->type = type_fh;
		880	req->sv1 = newSVsv (fh_or_path);
		881	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		882	break;
		883
		884	default:
		885	req->type = type_path;
		886	req_set_path1 (req, fh_or_path);
		887	break;
		888	}
		889	}
		890
		891	XS(boot_IO__AIO) ecb_cold;
524		892
525	MODULE = IO::AIO PACKAGE = IO::AIO	893	MODULE = IO::AIO PACKAGE = IO::AIO
526		894
527	PROTOTYPES: ENABLE	895	PROTOTYPES: ENABLE
528		896
…		…
530	{	898	{
531	static const struct {	899	static const struct {
532	const char *name;	900	const char *name;
533	IV iv;	901	IV iv;
534	} *civ, const_iv[] = {	902	} *civ, const_iv[] = {
535	# define const_iv(name, value) { # name, (IV) value },	903	# define const_niv(name, value) { # name, (IV) value },
		904	# define const_iv(name) { # name, (IV) name },
536	# define const_eio(name) { # name, (IV) EIO_ ## name },	905	# define const_eio(name) { # name, (IV) EIO_ ## name },
537	const_iv (EXDEV , EXDEV)	906
		907	/* you have to re-run ./gendef0 after adding/removing any constants here */
		908	/* the first block can be undef if missing */
538	const_iv (ENOSYS , ENOSYS)	909	const_iv (ENOSYS)
539	const_iv (O_RDONLY, O_RDONLY)	910	const_iv (EXDEV)
540	const_iv (O_WRONLY, O_WRONLY)	911	const_iv (EBADR)
541	const_iv (O_CREAT , O_CREAT)	912
542	const_iv (O_TRUNC , O_TRUNC)	913	/* for lseek */
543	#ifndef _WIN32	914	const_iv (SEEK_DATA)
544	const_iv (S_IFIFO , S_IFIFO)	915	const_iv (SEEK_HOLE)
545	#endif	916
546	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	917	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
547	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	918	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
548	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	919	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
549	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	920	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
550	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	921	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
551	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	922	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		923
		924	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		925	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		926	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		927	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		928	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		929	const_niv (MADV_FREE , POSIX_MADV_FREE)
		930
		931	/* the second block will be 0 when missing */
		932	const_iv (O_RDONLY)
		933	const_iv (O_WRONLY)
		934	const_iv (O_RDWR)
		935	const_iv (O_CREAT)
		936	const_iv (O_TRUNC)
		937	const_iv (O_EXCL)
		938	const_iv (O_APPEND)
		939
		940	const_iv (O_ASYNC)
		941	const_iv (O_DIRECT)
		942	const_iv (O_NOATIME)
		943
		944	const_iv (O_CLOEXEC)
		945	const_iv (O_NOCTTY)
		946	const_iv (O_NOFOLLOW)
		947	const_iv (O_NONBLOCK)
		948	const_iv (O_EXEC)
		949	const_iv (O_SEARCH)
		950	const_iv (O_DIRECTORY)
		951	const_iv (O_DSYNC)
		952	const_iv (O_RSYNC)
		953	const_iv (O_SYNC)
		954	const_iv (O_PATH)
		955	const_iv (O_TMPFILE)
		956	const_iv (O_TTY_INIT)
		957
		958	const_iv (S_IFIFO)
		959	const_iv (S_IFCHR)
		960	const_iv (S_IFBLK)
		961	const_iv (S_IFLNK)
		962	const_iv (S_IFREG)
		963	const_iv (S_IFDIR)
		964	const_iv (S_IFWHT)
		965	const_iv (S_IFSOCK)
		966	const_iv (S_IFMT)
		967
		968	const_iv (ST_RDONLY)
		969	const_iv (ST_NOSUID)
		970	const_iv (ST_NODEV)
		971	const_iv (ST_NOEXEC)
		972	const_iv (ST_SYNCHRONOUS)
		973	const_iv (ST_MANDLOCK)
		974	const_iv (ST_WRITE)
		975	const_iv (ST_APPEND)
		976	const_iv (ST_IMMUTABLE)
		977	const_iv (ST_NOATIME)
		978	const_iv (ST_NODIRATIME)
		979	const_iv (ST_RELATIME)
		980
		981	const_iv (PROT_NONE)
		982	const_iv (PROT_EXEC)
		983	const_iv (PROT_READ)
		984	const_iv (PROT_WRITE)
		985
		986	const_iv (MAP_PRIVATE)
		987	const_iv (MAP_SHARED)
		988	const_iv (MAP_FIXED)
		989	const_iv (MAP_ANONYMOUS)
		990
		991	/* linuxish */
		992	const_iv (MAP_LOCKED)
		993	const_iv (MAP_NORESERVE)
		994	const_iv (MAP_POPULATE)
		995	const_iv (MAP_NONBLOCK)
		996	const_iv (MAP_GROWSDOWN)
		997	const_iv (MAP_32BIT)
		998	const_iv (MAP_HUGETLB)
		999	const_iv (MAP_STACK)
		1000
		1001	const_iv (FIFREEZE)
		1002	const_iv (FITHAW)
		1003	const_iv (FITRIM)
		1004	const_iv (FICLONE)
		1005	const_iv (FICLONERANGE)
		1006	const_iv (FIDEDUPERANGE)
		1007
		1008	const_iv (FS_IOC_GETFLAGS)
		1009	const_iv (FS_IOC_SETFLAGS)
		1010	const_iv (FS_IOC_GETVERSION)
		1011	const_iv (FS_IOC_SETVERSION)
		1012	const_iv (FS_IOC_FIEMAP)
		1013	const_iv (FS_IOC_FSGETXATTR)
		1014	const_iv (FS_IOC_FSSETXATTR)
		1015	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1016	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1017	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1018
		1019	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1020
		1021	const_iv (FS_SECRM_FL)
		1022	const_iv (FS_UNRM_FL)
		1023	const_iv (FS_COMPR_FL)
		1024	const_iv (FS_SYNC_FL)
		1025	const_iv (FS_IMMUTABLE_FL)
		1026	const_iv (FS_APPEND_FL)
		1027	const_iv (FS_NODUMP_FL)
		1028	const_iv (FS_NOATIME_FL)
		1029	const_iv (FS_DIRTY_FL)
		1030	const_iv (FS_COMPRBLK_FL)
		1031	const_iv (FS_NOCOMP_FL)
		1032	const_iv (FS_ENCRYPT_FL)
		1033	const_iv (FS_BTREE_FL)
		1034	const_iv (FS_INDEX_FL)
		1035	const_iv (FS_JOURNAL_DATA_FL)
		1036	const_iv (FS_NOTAIL_FL)
		1037	const_iv (FS_DIRSYNC_FL)
		1038	const_iv (FS_TOPDIR_FL)
		1039	const_iv (FS_FL_USER_MODIFIABLE)
		1040
		1041	const_iv (FS_XFLAG_REALTIME)
		1042	const_iv (FS_XFLAG_PREALLOC)
		1043	const_iv (FS_XFLAG_IMMUTABLE)
		1044	const_iv (FS_XFLAG_APPEND)
		1045	const_iv (FS_XFLAG_SYNC)
		1046	const_iv (FS_XFLAG_NOATIME)
		1047	const_iv (FS_XFLAG_NODUMP)
		1048	const_iv (FS_XFLAG_RTINHERIT)
		1049	const_iv (FS_XFLAG_PROJINHERIT)
		1050	const_iv (FS_XFLAG_NOSYMLINKS)
		1051	const_iv (FS_XFLAG_EXTSIZE)
		1052	const_iv (FS_XFLAG_EXTSZINHERIT)
		1053	const_iv (FS_XFLAG_NODEFRAG)
		1054	const_iv (FS_XFLAG_FILESTREAM)
		1055	const_iv (FS_XFLAG_DAX)
		1056	const_iv (FS_XFLAG_HASATTR)
		1057
		1058	const_iv (FIEMAP_FLAG_SYNC)
		1059	const_iv (FIEMAP_FLAG_XATTR)
		1060	const_iv (FIEMAP_FLAGS_COMPAT)
		1061	const_iv (FIEMAP_EXTENT_LAST)
		1062	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1063	const_iv (FIEMAP_EXTENT_DELALLOC)
		1064	const_iv (FIEMAP_EXTENT_ENCODED)
		1065	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1066	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1067	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1068	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1069	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1070	const_iv (FIEMAP_EXTENT_MERGED)
		1071	const_iv (FIEMAP_EXTENT_SHARED)
		1072
		1073	const_iv (SPLICE_F_MOVE)
		1074	const_iv (SPLICE_F_NONBLOCK)
		1075	const_iv (SPLICE_F_MORE)
		1076	const_iv (SPLICE_F_GIFT)
		1077
		1078	/* these are libeio constants, and are independent of gendef0 */
		1079	const_eio (SEEK_SET)
		1080	const_eio (SEEK_CUR)
		1081	const_eio (SEEK_END)
		1082
		1083	const_eio (MCL_FUTURE)
		1084	const_eio (MCL_CURRENT)
		1085
		1086	const_eio (MS_ASYNC)
		1087	const_eio (MS_INVALIDATE)
		1088	const_eio (MS_SYNC)
		1089
		1090	const_eio (MT_MODIFY)
552		1091
553	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1092	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
554	const_eio (SYNC_FILE_RANGE_WRITE)	1093	const_eio (SYNC_FILE_RANGE_WRITE)
555	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1094	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1095
		1096	const_eio (FALLOC_FL_KEEP_SIZE)
		1097	const_eio (FALLOC_FL_PUNCH_HOLE)
		1098	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1099	const_eio (FALLOC_FL_ZERO_RANGE)
		1100
		1101	const_eio (RENAME_NOREPLACE)
		1102	const_eio (RENAME_EXCHANGE)
		1103	const_eio (RENAME_WHITEOUT)
556		1104
557	const_eio (READDIR_DENTS)	1105	const_eio (READDIR_DENTS)
558	const_eio (READDIR_DIRS_FIRST)	1106	const_eio (READDIR_DIRS_FIRST)
559	const_eio (READDIR_STAT_ORDER)	1107	const_eio (READDIR_STAT_ORDER)
560	const_eio (READDIR_FOUND_UNKNOWN)	1108	const_eio (READDIR_FOUND_UNKNOWN)
…		…
568	const_eio (DT_LNK)	1116	const_eio (DT_LNK)
569	const_eio (DT_SOCK)	1117	const_eio (DT_SOCK)
570	const_eio (DT_WHT)	1118	const_eio (DT_WHT)
571	};	1119	};
572		1120
573	stash = gv_stashpv ("IO::AIO", 1);	1121	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1122	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1123	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1124	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
574		1125
575	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1126	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
576	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1127	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
577		1128
578	create_respipe ();	1129	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
579		1130
580	if (eio_init (want_poll, done_poll) < 0)	1131	reinit ();
581	croak ("IO::AIO: unable to initialise eio library");
582
583	/* atfork child called in fifo order, so before eio's handler */
584	X_THREAD_ATFORK (0, 0, atfork_child);
585	}	1132	}
586		1133
587	void	1134	void
		1135	reinit ()
		1136	PROTOTYPE:
		1137
		1138	void
588	max_poll_reqs (int nreqs)	1139	max_poll_reqs (unsigned int nreqs)
589	PROTOTYPE: $	1140	PROTOTYPE: $
590	CODE:	1141	CODE:
591	eio_set_max_poll_reqs (nreqs);	1142	eio_set_max_poll_reqs (nreqs);
592		1143
593	void	1144	void
…		…
595	PROTOTYPE: $	1146	PROTOTYPE: $
596	CODE:	1147	CODE:
597	eio_set_max_poll_time (nseconds);	1148	eio_set_max_poll_time (nseconds);
598		1149
599	void	1150	void
600	min_parallel (int nthreads)	1151	min_parallel (unsigned int nthreads)
601	PROTOTYPE: $	1152	PROTOTYPE: $
602	CODE:	1153	CODE:
603	eio_set_min_parallel (nthreads);	1154	eio_set_min_parallel (nthreads);
604		1155
605	void	1156	void
606	max_parallel (int nthreads)	1157	max_parallel (unsigned int nthreads)
607	PROTOTYPE: $	1158	PROTOTYPE: $
608	CODE:	1159	CODE:
609	eio_set_max_parallel (nthreads);	1160	eio_set_max_parallel (nthreads);
610		1161
611	void	1162	void
612	max_idle (int nthreads)	1163	max_idle (unsigned int nthreads)
613	PROTOTYPE: $	1164	PROTOTYPE: $
614	CODE:	1165	CODE:
615	eio_set_max_idle (nthreads);	1166	eio_set_max_idle (nthreads);
616		1167
617	void	1168	void
		1169	idle_timeout (unsigned int seconds)
		1170	PROTOTYPE: $
		1171	CODE:
		1172	eio_set_idle_timeout (seconds);
		1173
		1174	void
618	max_outstanding (int maxreqs)	1175	max_outstanding (unsigned int maxreqs)
619	PROTOTYPE: $	1176	PROTOTYPE: $
620	CODE:	1177	CODE:
621	max_outstanding = maxreqs;	1178	max_outstanding = maxreqs;
622		1179
623	void	1180	void
624	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1181	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
625	PROTOTYPE: $$$;$
626	PPCODE:	1182	PPCODE:
627	{	1183	{
628	dREQ;	1184	dREQ;
629		1185
		1186	req->type = EIO_WD_OPEN;
		1187	req_set_path1 (req, pathname);
		1188
		1189	REQ_SEND;
		1190	}
		1191
		1192	void
		1193	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1194	PPCODE:
		1195	{
		1196	dREQ;
		1197
630	req->type = EIO_OPEN;	1198	req->type = EIO_OPEN;
631	req->sv1 = newSVsv (pathname);	1199	req_set_path1 (req, pathname);
632	req->ptr1 = SvPVbyte_nolen (req->sv1);
633	req->int1 = flags;	1200	req->int1 = flags;
634	req->int2 = mode;	1201	req->int2 = mode;
635		1202
636	REQ_SEND;	1203	REQ_SEND;
637	}	1204	}
638		1205
639	void	1206	void
640	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1207	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
641	PROTOTYPE: $;$
642	ALIAS:	1208	ALIAS:
643	aio_fsync = EIO_FSYNC	1209	aio_fsync = EIO_FSYNC
644	aio_fdatasync = EIO_FDATASYNC	1210	aio_fdatasync = EIO_FDATASYNC
		1211	aio_syncfs = EIO_SYNCFS
645	PPCODE:	1212	PPCODE:
646	{	1213	{
647	int fd = s_fileno_croak (fh, 0);	1214	int fd = s_fileno_croak (fh, 0);
648	dREQ;	1215	dREQ;
649		1216
650	req->type = ix;	1217	req->type = ix;
651	req->sv1 = newSVsv (fh);	1218	req->sv1 = newSVsv (fh);
652	req->int1 = fd;	1219	req->int1 = fd;
653		1220
654	REQ_SEND (req);	1221	REQ_SEND;
655	}	1222	}
656		1223
657	void	1224	void
658	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1225	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
659	PROTOTYPE: $$$$;$
660	PPCODE:	1226	PPCODE:
661	{	1227	{
662	int fd = s_fileno_croak (fh, 0);	1228	int fd = s_fileno_croak (fh, 0);
663	dREQ;	1229	dREQ;
664		1230
665	req->type = EIO_SYNC_FILE_RANGE;	1231	req->type = EIO_SYNC_FILE_RANGE;
666	req->sv1 = newSVsv (fh);	1232	req->sv1 = newSVsv (fh);
667	req->int1 = fd;	1233	req->int1 = fd;
668	req->offs = offset;	1234	req->offs = offset;
669	req->size = nbytes;	1235	req->size = nbytes;
670	req->int2 = flags;	1236	req->int2 = flags;
671		1237
672	REQ_SEND (req);	1238	REQ_SEND;
673	}	1239	}
674		1240
675	void	1241	void
676	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1242	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
677	PROTOTYPE: $;$
678	PPCODE:	1243	PPCODE:
679	{	1244	{
680	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
681	int fd = s_fileno_croak (fh, 0);	1245	int fd = s_fileno_croak (fh, 0);
682	dREQ;	1246	dREQ;
683		1247
684	if (close_pipe < 0)	1248	req->type = EIO_FALLOCATE;
		1249	req->sv1 = newSVsv (fh);
		1250	req->int1 = fd;
		1251	req->int2 = mode;
		1252	req->offs = offset;
		1253	req->size = len;
		1254
		1255	REQ_SEND;
		1256	}
		1257
		1258	void
		1259	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1260	PPCODE:
		1261	{
		1262	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1263	int fd = s_fileno_croak (fh, 0);
		1264	dREQ;
		1265
		1266	if (expect_false (close_fd < 0))
685	{	1267	{
686	int pipefd [2];	1268	int pipefd [2];
687		1269
		1270	if (
		1271	#ifdef _WIN32
		1272	_pipe (pipefd, 1, _O_BINARY) < 0
		1273	#else
688	if (pipe (pipefd) < 0	1274	pipe (pipefd) < 0
689	|| close (pipefd [1]) < 0
690	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1275	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1276	#endif
		1277	|| close (pipefd [1]) < 0
		1278	)
691	abort (); /*D*/	1279	abort (); /*D*/
692		1280
693	close_pipe = pipefd [0];	1281	close_fd = pipefd [0];
694	}	1282	}
695		1283
696	req->type = EIO_DUP2;	1284	req->type = EIO_DUP2;
697	req->int1 = close_pipe;	1285	req->int1 = close_fd;
698	req->sv2 = newSVsv (fh);	1286	req->sv2 = newSVsv (fh);
699	req->int2 = fd;	1287	req->int2 = fd;
700		1288
701	REQ_SEND (req);	1289	REQ_SEND;
702	}	1290	}
703		1291
704	void	1292	void
		1293	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1294	PPCODE:
		1295	{
		1296	int fd = s_fileno_croak (fh, 0);
		1297	dREQ;
		1298
		1299	req->type = EIO_SEEK;
		1300	req->sv1 = newSVsv (fh);
		1301	req->int1 = fd;
		1302	req->offs = SvVAL64 (offset);
		1303	req->int2 = whence;
		1304
		1305	REQ_SEND;
		1306	}
		1307
		1308	void
705	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1309	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
706	ALIAS:	1310	ALIAS:
707	aio_read = EIO_READ	1311	aio_read = EIO_READ
708	aio_write = EIO_WRITE	1312	aio_write = EIO_WRITE
709	PROTOTYPE: $$$$$;$
710	PPCODE:	1313	PPCODE:
711	{	1314	{
712	STRLEN svlen;	1315	STRLEN svlen;
713	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1316	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
714	char *svptr = SvPVbyte (data, svlen);	1317	char *svptr = SvPVbyte (data, svlen);
…		…
727	len = svlen - dataoffset;	1330	len = svlen - dataoffset;
728	}	1331	}
729	else	1332	else
730	{	1333	{
731	/* read: check type and grow scalar as necessary */	1334	/* read: check type and grow scalar as necessary */
732	SvUPGRADE (data, SVt_PV);	1335	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
733	svptr = SvGROW (data, len + dataoffset + 1);	1336	svptr = sv_grow (data, len + dataoffset + 1);
		1337	else if (SvCUR (data) < len + dataoffset)
		1338	croak ("length + dataoffset outside of scalar, and cannot grow");
734	}	1339	}
735		1340
736	{	1341	{
737	dREQ;	1342	dREQ;
738		1343
…		…
754	REQ_SEND;	1359	REQ_SEND;
755	}	1360	}
756	}	1361	}
757		1362
758	void	1363	void
759	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1364	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
760	PROTOTYPE: $$;$	1365	ALIAS:
		1366	aio_ioctl = EIO_IOCTL
		1367	aio_fcntl = EIO_FCNTL
761	PPCODE:	1368	PPCODE:
762	{	1369	{
763	SV *data;	1370	int fd = s_fileno_croak (fh, 0);
		1371	char *svptr;
		1372
		1373	if (SvPOK (arg) || !SvNIOK (arg))
		1374	{
		1375	STRLEN svlen;
		1376	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1377	#ifdef IOCPARM_LEN
		1378	STRLEN need = IOCPARM_LEN (request);
		1379	#else
		1380	STRLEN need = 256;
		1381	#endif
		1382
		1383	if (svlen < need)
		1384	svptr = SvGROW (arg, need);
		1385	}
		1386	else
		1387	svptr = (char *)SvIV (arg);
		1388
		1389	{
		1390	dREQ;
		1391
		1392	req->type = ix;
		1393	req->sv1 = newSVsv (fh);
		1394	req->int1 = fd;
		1395	req->int2 = (long)request;
		1396	req->sv2 = SvREFCNT_inc (arg);
		1397	req->ptr2 = svptr;
		1398
		1399	REQ_SEND;
		1400	}
		1401	}
		1402
		1403	void
		1404	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1405	ALIAS:
		1406	aio_readlink = EIO_READLINK
		1407	aio_realpath = EIO_REALPATH
		1408	PPCODE:
		1409	{
764	dREQ;	1410	dREQ;
765		1411
766	req->type = EIO_READLINK;	1412	req->type = ix;
767	req->sv1 = newSVsv (path);	1413	req_set_path1 (req, pathname);
768	req->ptr1 = SvPVbyte_nolen (req->sv1);
769		1414
770	REQ_SEND;	1415	REQ_SEND;
771	}	1416	}
772		1417
773	void	1418	void
774	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1419	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
775	PROTOTYPE: $$$$;$
776	PPCODE:	1420	PPCODE:
777	{	1421	{
778	int ifd = s_fileno_croak (in_fh , 0);	1422	int ifd = s_fileno_croak (in_fh , 0);
779	int ofd = s_fileno_croak (out_fh, 1);	1423	int ofd = s_fileno_croak (out_fh, 1);
780	dREQ;	1424	dREQ;
781		1425
782	req->type = EIO_SENDFILE;	1426	req->type = EIO_SENDFILE;
783	req->sv1 = newSVsv (out_fh);	1427	req->sv1 = newSVsv (out_fh);
784	req->int1 = ofd;	1428	req->int1 = ofd;
…		…
789		1433
790	REQ_SEND;	1434	REQ_SEND;
791	}	1435	}
792		1436
793	void	1437	void
794	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1438	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
795	PROTOTYPE: $$$;$
796	PPCODE:	1439	PPCODE:
797	{	1440	{
798	int fd = s_fileno_croak (fh, 0);	1441	int fd = s_fileno_croak (fh, 0);
799	dREQ;	1442	dREQ;
800		1443
801	req->type = EIO_READAHEAD;	1444	req->type = EIO_READAHEAD;
802	req->sv1 = newSVsv (fh);	1445	req->sv1 = newSVsv (fh);
803	req->int1 = fd;	1446	req->int1 = fd;
…		…
806		1449
807	REQ_SEND;	1450	REQ_SEND;
808	}	1451	}
809		1452
810	void	1453	void
811	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1454	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
812	ALIAS:	1455	ALIAS:
813	aio_stat = EIO_STAT	1456	aio_stat = EIO_STAT
814	aio_lstat = EIO_LSTAT	1457	aio_lstat = EIO_LSTAT
		1458	aio_statvfs = EIO_STATVFS
815	PPCODE:	1459	PPCODE:
816	{	1460	{
817	dREQ;	1461	dREQ;
818		1462
819	req->sv1 = newSVsv (fh_or_path);	1463	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
820
821	if (SvPOK (req->sv1))
822	{
823	req->type = ix;
824	req->ptr1 = SvPVbyte_nolen (req->sv1);
825	}
826	else
827	{
828	req->type = EIO_FSTAT;
829	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
830	}
831		1464
832	REQ_SEND;	1465	REQ_SEND;
833	}	1466	}
834		1467
		1468	UV
		1469	major (UV dev)
		1470	ALIAS:
		1471	minor = 1
		1472	CODE:
		1473	RETVAL = ix ? minor (dev) : major (dev);
		1474	OUTPUT:
		1475	RETVAL
		1476
		1477	UV
		1478	makedev (UV maj, UV min)
		1479	CODE:
		1480	RETVAL = makedev (maj, min);
		1481	OUTPUT:
		1482	RETVAL
		1483
835	void	1484	void
836	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1485	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
837	PPCODE:	1486	PPCODE:
838	{	1487	{
839	dREQ;	1488	dREQ;
840		1489
841	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1490	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
842	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1491	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
843	req->sv1 = newSVsv (fh_or_path);	1492	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
844
845	if (SvPOK (req->sv1))
846	{
847	req->type = EIO_UTIME;
848	req->ptr1 = SvPVbyte_nolen (req->sv1);
849	}
850	else
851	{
852	req->type = EIO_FUTIME;
853	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
854	}
855		1493
856	REQ_SEND;	1494	REQ_SEND;
857	}	1495	}
858		1496
859	void	1497	void
860	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1498	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
861	PPCODE:	1499	PPCODE:
862	{	1500	{
863	dREQ;	1501	dREQ;
864		1502
865	req->sv1 = newSVsv (fh_or_path);
866	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1503	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
867		1504	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
868	if (SvPOK (req->sv1))
869	{
870	req->type = EIO_TRUNCATE;
871	req->ptr1 = SvPVbyte_nolen (req->sv1);
872	}
873	else
874	{
875	req->type = EIO_FTRUNCATE;
876	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
877	}
878		1505
879	REQ_SEND;	1506	REQ_SEND;
880	}	1507	}
881		1508
882	void	1509	void
883	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1510	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
884	ALIAS:
885	aio_chmod = EIO_CHMOD
886	aio_mkdir = EIO_MKDIR
887	PPCODE:	1511	PPCODE:
888	{	1512	{
889	dREQ;	1513	dREQ;
890		1514
891	req->int2 = mode;	1515	req->int2 = mode;
892	req->sv1 = newSVsv (fh_or_path);	1516	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
893
894	if (SvPOK (req->sv1))
895	{
896	req->type = ix;
897	req->ptr1 = SvPVbyte_nolen (req->sv1);
898	}
899	else
900	{
901	req->type = EIO_FCHMOD;
902	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
903	}
904		1517
905	REQ_SEND;	1518	REQ_SEND;
906	}	1519	}
907		1520
908	void	1521	void
909	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1522	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
910	PPCODE:	1523	PPCODE:
911	{	1524	{
912	dREQ;	1525	dREQ;
913		1526
914	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1527	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
915	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1528	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
916	req->sv1 = newSVsv (fh_or_path);	1529	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
917
918	if (SvPOK (req->sv1))
919	{
920	req->type = EIO_CHOWN;
921	req->ptr1 = SvPVbyte_nolen (req->sv1);
922	}
923	else
924	{
925	req->type = EIO_FCHOWN;
926	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
927	}
928		1530
929	REQ_SEND;	1531	REQ_SEND;
930	}	1532	}
931		1533
932	void	1534	void
933	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1535	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
934	PPCODE:	1536	PPCODE:
935	{	1537	{
936	dREQ;	1538	dREQ;
937		1539
938	req->type = EIO_READDIR;	1540	req->type = EIO_READDIR;
939	req->sv1 = newSVsv (pathname);
940	req->ptr1 = SvPVbyte_nolen (req->sv1);
941	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1541	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
942		1542
943	if (flags & EIO_READDIR_DENTS)	1543	if (flags & EIO_READDIR_DENTS)
944	req->int1 |= EIO_READDIR_CUSTOM2;	1544	req->int1 |= EIO_READDIR_CUSTOM2;
945		1545
		1546	req_set_path1 (req, pathname);
		1547
946	REQ_SEND;	1548	REQ_SEND;
947	}	1549	}
948		1550
949	void	1551	void
		1552	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1553	PPCODE:
		1554	{
		1555	dREQ;
		1556
		1557	req->type = EIO_MKDIR;
		1558	req->int2 = mode;
		1559	req_set_path1 (req, pathname);
		1560
		1561	REQ_SEND;
		1562	}
		1563
		1564	void
950	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1565	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
951	ALIAS:	1566	ALIAS:
952	aio_unlink = EIO_UNLINK	1567	aio_unlink = EIO_UNLINK
953	aio_rmdir = EIO_RMDIR	1568	aio_rmdir = EIO_RMDIR
954	aio_readdir = EIO_READDIR	1569	aio_readdir = EIO_READDIR
955	PPCODE:	1570	PPCODE:
956	{	1571	{
957	dREQ;	1572	dREQ;
958		1573
959	req->type = ix;	1574	req->type = ix;
960	req->sv1 = newSVsv (pathname);	1575	req_set_path1 (req, pathname);
961	req->ptr1 = SvPVbyte_nolen (req->sv1);
962		1576
963	REQ_SEND;	1577	REQ_SEND;
964	}	1578	}
965		1579
966	void	1580	void
967	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1581	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
968	ALIAS:	1582	ALIAS:
969	aio_link = EIO_LINK	1583	aio_link = EIO_LINK
970	aio_symlink = EIO_SYMLINK	1584	aio_symlink = EIO_SYMLINK
971	aio_rename = EIO_RENAME	1585	aio_rename = EIO_RENAME
972	PPCODE:	1586	PPCODE:
973	{	1587	{
		1588	eio_wd wd2 = 0;
974	dREQ;	1589	dREQ;
975		1590
976	req->type = ix;	1591	req->type = ix;
977	req->sv1 = newSVsv (oldpath);	1592	req_set_path1 (req, oldpath);
978	req->ptr1 = SvPVbyte_nolen (req->sv1);	1593	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
979	req->sv2 = newSVsv (newpath);	1594	req->int3 = (long)wd2;
980	req->ptr2 = SvPVbyte_nolen (req->sv2);
981		1595
982	REQ_SEND;	1596	REQ_SEND;
983	}	1597	}
984		1598
985	void	1599	void
		1600	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1601	PPCODE:
		1602	{
		1603	eio_wd wd2 = 0;
		1604	dREQ;
		1605
		1606	req->type = EIO_RENAME;
		1607	req_set_path1 (req, oldpath);
		1608	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1609	req->int2 = flags;
		1610	req->int3 = (long)wd2;
		1611
		1612	REQ_SEND;
		1613	}
		1614
		1615	void
986	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1616	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
987	PPCODE:	1617	PPCODE:
988	{	1618	{
989	dREQ;	1619	dREQ;
990		1620
991	req->type = EIO_MKNOD;	1621	req->type = EIO_MKNOD;
992	req->sv1 = newSVsv (pathname);
993	req->ptr1 = SvPVbyte_nolen (req->sv1);
994	req->int2 = (mode_t)mode;	1622	req->int2 = (mode_t)mode;
995	req->offs = dev;	1623	req->offs = dev;
		1624	req_set_path1 (req, pathname);
996		1625
997	REQ_SEND;	1626	REQ_SEND;
998	}	1627	}
999		1628
1000	void	1629	void
		1630	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
		1631	ALIAS:
		1632	aio_mtouch = EIO_MTOUCH
		1633	aio_msync = EIO_MSYNC
		1634	PPCODE:
		1635	{
		1636	STRLEN svlen;
		1637	char *svptr = SvPVbyte (data, svlen);
		1638	UV len = SvUV (length);
		1639
		1640	if (flags < 0)
		1641	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
		1642
		1643	if (offset < 0)
		1644	offset += svlen;
		1645
		1646	if (offset < 0 || offset > svlen)
		1647	croak ("offset outside of scalar");
		1648
		1649	if (!SvOK (length) || len + offset > svlen)
		1650	len = svlen - offset;
		1651
		1652	{
		1653	dREQ;
		1654
		1655	req->type = ix;
		1656	req->sv2 = SvREFCNT_inc (data);
		1657	req->ptr2 = (char *)svptr + offset;
		1658	req->size = len;
		1659	req->int1 = flags;
		1660
		1661	REQ_SEND;
		1662	}
		1663	}
		1664
		1665	void
		1666	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1667	PPCODE:
		1668	{
		1669	STRLEN svlen;
		1670	char *svptr = SvPVbyte (data, svlen);
		1671	UV len = SvUV (length);
		1672
		1673	if (offset < 0)
		1674	offset += svlen;
		1675
		1676	if (offset < 0 || offset > svlen)
		1677	croak ("offset outside of scalar");
		1678
		1679	if (!SvOK (length) || len + offset > svlen)
		1680	len = svlen - offset;
		1681
		1682	{
		1683	dREQ;
		1684
		1685	req->type = EIO_MLOCK;
		1686	req->sv2 = SvREFCNT_inc (data);
		1687	req->ptr2 = (char *)svptr + offset;
		1688	req->size = len;
		1689
		1690	REQ_SEND;
		1691	}
		1692	}
		1693
		1694	void
		1695	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1696	PPCODE:
		1697	{
		1698	dREQ;
		1699
		1700	req->type = EIO_MLOCKALL;
		1701	req->int1 = flags;
		1702
		1703	REQ_SEND;
		1704	}
		1705
		1706	void
		1707	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1708	PPCODE:
		1709	{
		1710	int fd = s_fileno_croak (fh, 0);
		1711	dREQ;
		1712
		1713	req->type = EIO_CUSTOM;
		1714	req->sv1 = newSVsv (fh);
		1715	req->int1 = fd;
		1716
		1717	req->feed = fiemap;
		1718	#if HAVE_FIEMAP
		1719	/* keep our fingers crossed that the next two types are 64 bit */
		1720	req->offs = start;
		1721	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1722	req->int2 = flags;
		1723	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1724	#endif
		1725
		1726	REQ_SEND;
		1727	}
		1728
		1729	void
1001	aio_busy (double delay, SV *callback=&PL_sv_undef)	1730	aio_busy (double delay, SV *callback = &PL_sv_undef)
1002	PPCODE:	1731	PPCODE:
1003	{	1732	{
1004	dREQ;	1733	dREQ;
1005		1734
1006	req->type = EIO_BUSY;	1735	req->type = EIO_BUSY;
…		…
1008		1737
1009	REQ_SEND;	1738	REQ_SEND;
1010	}	1739	}
1011		1740
1012	void	1741	void
1013	aio_group (SV *callback=&PL_sv_undef)	1742	aio_group (SV *callback = &PL_sv_undef)
1014	PROTOTYPE: ;$
1015	PPCODE:	1743	PPCODE:
1016	{	1744	{
1017	dREQ;	1745	dREQ;
1018		1746
1019	req->type = EIO_GROUP;	1747	req->type = EIO_GROUP;
1020		1748
		1749	PUTBACK;
1021	req_submit (req);	1750	req_submit (req);
		1751	SPAGAIN;
		1752
1022	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1753	XPUSHs (req_sv (req, aio_grp_stash));
1023	}	1754	}
1024		1755
1025	void	1756	void
1026	aio_nop (SV *callback=&PL_sv_undef)	1757	aio_nop (SV *callback = &PL_sv_undef)
1027	ALIAS:	1758	ALIAS:
1028	aio_nop = EIO_NOP	1759	aio_nop = EIO_NOP
1029	aio_sync = EIO_SYNC	1760	aio_sync = EIO_SYNC
1030	PPCODE:	1761	PPCODE:
1031	{	1762	{
…		…
1035		1766
1036	REQ_SEND;	1767	REQ_SEND;
1037	}	1768	}
1038		1769
1039	int	1770	int
1040	aioreq_pri (int pri = 0)	1771	aioreq_pri (int pri = NO_INIT)
1041	PROTOTYPE: ;$
1042	CODE:	1772	CODE:
1043	RETVAL = next_pri;	1773	RETVAL = next_pri;
1044	if (items > 0)	1774	if (items > 0)
1045	{	1775	{
1046	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1776	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1058	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1788	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1059	next_pri = nice;	1789	next_pri = nice;
1060		1790
1061	void	1791	void
1062	flush ()	1792	flush ()
1063	PROTOTYPE:
1064	CODE:	1793	CODE:
1065	while (eio_nreqs ())	1794	while (eio_nreqs ())
1066	{	1795	{
1067	poll_wait ();	1796	poll_wait ();
1068	poll_cb ();	1797	poll_cb ();
1069	}	1798	}
1070		1799
1071	int	1800	int
1072	poll()	1801	poll ()
1073	PROTOTYPE:
1074	CODE:	1802	CODE:
1075	poll_wait ();	1803	poll_wait ();
1076	RETVAL = poll_cb ();	1804	RETVAL = poll_cb ();
1077	OUTPUT:	1805	OUTPUT:
1078	RETVAL	1806	RETVAL
1079		1807
1080	int	1808	int
1081	poll_fileno()	1809	poll_fileno ()
1082	PROTOTYPE:
1083	CODE:	1810	CODE:
1084	RETVAL = s_epipe_fd (&respipe);	1811	RETVAL = s_epipe_fd (&respipe);
1085	OUTPUT:	1812	OUTPUT:
1086	RETVAL	1813	RETVAL
1087		1814
1088	int	1815	int
1089	poll_cb(...)	1816	poll_cb (...)
1090	PROTOTYPE:	1817	PROTOTYPE:
1091	CODE:	1818	CODE:
1092	RETVAL = poll_cb ();	1819	RETVAL = poll_cb ();
1093	OUTPUT:	1820	OUTPUT:
1094	RETVAL	1821	RETVAL
1095		1822
1096	void	1823	void
1097	poll_wait()	1824	poll_wait ()
1098	PROTOTYPE:
1099	CODE:	1825	CODE:
1100	poll_wait ();	1826	poll_wait ();
1101		1827
1102	int	1828	int
1103	nreqs()	1829	nreqs ()
1104	PROTOTYPE:
1105	CODE:	1830	CODE:
1106	RETVAL = eio_nreqs ();	1831	RETVAL = eio_nreqs ();
1107	OUTPUT:	1832	OUTPUT:
1108	RETVAL	1833	RETVAL
1109		1834
1110	int	1835	int
1111	nready()	1836	nready ()
1112	PROTOTYPE:
1113	CODE:	1837	CODE:
1114	RETVAL = eio_nready ();	1838	RETVAL = eio_nready ();
1115	OUTPUT:	1839	OUTPUT:
1116	RETVAL	1840	RETVAL
1117		1841
1118	int	1842	int
1119	npending()	1843	npending ()
1120	PROTOTYPE:
1121	CODE:	1844	CODE:
1122	RETVAL = eio_npending ();	1845	RETVAL = eio_npending ();
1123	OUTPUT:	1846	OUTPUT:
1124	RETVAL	1847	RETVAL
1125		1848
1126	int	1849	int
1127	nthreads()	1850	nthreads ()
1128	PROTOTYPE:
1129	CODE:	1851	CODE:
1130	RETVAL = eio_nthreads ();	1852	RETVAL = eio_nthreads ();
1131	OUTPUT:	1853	OUTPUT:
1132	RETVAL	1854	RETVAL
1133		1855
1134	int	1856	int
1135	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1857	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1136	PROTOTYPE: $$$$
1137	CODE:	1858	CODE:
1138	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1139	RETVAL = posix_fadvise (fh, offset, length, advice);	1859	RETVAL = posix_fadvise (fh, offset, length, advice);
1140	#else
1141	RETVAL = errno = ENOSYS;
1142	#endif
1143	OUTPUT:	1860	OUTPUT:
1144	RETVAL	1861	RETVAL
1145		1862
1146	ssize_t	1863	IV
1147	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1864	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1148	PROTOTYPE: $$$$
1149	CODE:	1865	CODE:
1150	eio_sendfile_sync (ofh, ifh, offset, count);	1866	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1867	OUTPUT:
		1868	RETVAL
		1869
		1870	void
		1871	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1872	PPCODE:
		1873	sv_unmagic (scalar, MMAP_MAGIC);
		1874	{
		1875	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1876	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1877	if (addr == (void *)-1)
		1878	XSRETURN_NO;
		1879
		1880	sv_force_normal (scalar);
		1881
		1882	/* we store the length in mg_obj, as namlen is I32 :/ */
		1883	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1884	->mg_obj = (SV *)length;
		1885
		1886	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1887
		1888	if (!(prot & PROT_WRITE))
		1889	SvREADONLY_on (scalar);
		1890
		1891	if (SvLEN (scalar))
		1892	Safefree (SvPVX (scalar));
		1893
		1894	SvPVX (scalar) = (char *)addr;
		1895	SvCUR_set (scalar, length);
		1896	SvLEN_set (scalar, 0);
		1897	SvPOK_only (scalar);
		1898
		1899	XSRETURN_YES;
		1900	}
		1901
		1902	void
		1903	munmap (SV *scalar)
		1904	CODE:
		1905	sv_unmagic (scalar, MMAP_MAGIC);
		1906
		1907	int
		1908	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1909	ALIAS:
		1910	mprotect = 1
		1911	CODE:
		1912	{
		1913	STRLEN svlen;
		1914	void *addr = SvPVbyte (scalar, svlen);
		1915	STRLEN len = SvUV (length);
		1916
		1917	if (offset < 0)
		1918	offset += svlen;
		1919
		1920	if (offset < 0 || offset > svlen)
		1921	croak ("offset outside of scalar");
		1922
		1923	if (!SvOK (length) || len + offset > svlen)
		1924	len = svlen - offset;
		1925
		1926	addr = (void *)(((intptr_t)addr) + offset);
		1927	eio_page_align (&addr, &len);
		1928
		1929	switch (ix)
		1930	{
		1931	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1932	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1933	}
		1934	}
		1935	OUTPUT:
		1936	RETVAL
		1937
		1938	int
		1939	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		1940	CODE:
		1941	{
		1942	STRLEN svlen;
		1943	void *addr = SvPVbyte (scalar, svlen);
		1944	size_t len = SvUV (length);
		1945
		1946	if (offset < 0)
		1947	offset += svlen;
		1948
		1949	if (offset < 0 || offset > svlen)
		1950	croak ("offset outside of scalar");
		1951
		1952	if (!SvOK (length) || len + offset > svlen)
		1953	len = svlen - offset;
		1954
		1955	addr = (void *)(((intptr_t)addr) + offset);
		1956	eio_page_align (&addr, &len);
		1957	#if _POSIX_MEMLOCK_RANGE
		1958	RETVAL = munlock (addr, len);
		1959	#else
		1960	RETVAL = EIO_ENOSYS ();
		1961	#endif
		1962	}
		1963	OUTPUT:
		1964	RETVAL
		1965
		1966	int
		1967	munlockall ()
		1968	CODE:
		1969	#if _POSIX_MEMLOCK
		1970	munlockall ();
		1971	#else
		1972	RETVAL = EIO_ENOSYS ();
		1973	#endif
		1974	OUTPUT:
		1975	RETVAL
		1976
		1977	int
		1978	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1979	CODE:
		1980	{
		1981	#if HAVE_LINUX_SPLICE
		1982	loff_t off_in_, off_out_;
		1983	RETVAL = splice (
		1984	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1985	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1986	length, flags
		1987	);
		1988	#else
		1989	RETVAL = EIO_ENOSYS ();
		1990	#endif
		1991	}
		1992	OUTPUT:
		1993	RETVAL
		1994
		1995	int
		1996	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1997	CODE:
		1998	#if HAVE_LINUX_SPLICE
		1999	RETVAL = tee (rfh, wfh, length, flags);
		2000	#else
		2001	RETVAL = EIO_ENOSYS ();
		2002	#endif
		2003	OUTPUT:
		2004	RETVAL
		2005
		2006	int
		2007	pipesize (aio_rfd rfh, int new_size = -1)
		2008	PROTOTYPE: $;$
		2009	CODE:
		2010	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2011	if (new_size >= 0)
		2012	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2013	else
		2014	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2015	#else
		2016	errno = ENOSYS;
		2017	RETVAL = -1;
		2018	#endif
		2019	OUTPUT:
		2020	RETVAL
		2021
		2022	void
		2023	pipe2 (int flags = 0)
		2024	PROTOTYPE: ;$
		2025	PPCODE:
		2026	{
		2027	int fd[2];
		2028	int res;
		2029
		2030	if (flags)
		2031	#if HAVE_PIPE2
		2032	res = pipe2 (fd, flags);
		2033	#else
		2034	res = (errno = ENOSYS, -1);
		2035	#endif
		2036	else
		2037	res = pipe (fd);
		2038
		2039	if (!res)
		2040	{
		2041	EXTEND (SP, 2);
		2042	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2043	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2044	}
		2045	}
1151		2046
1152	void _on_next_submit (SV *cb)	2047	void _on_next_submit (SV *cb)
1153	CODE:	2048	CODE:
1154	SvREFCNT_dec (on_next_submit);	2049	SvREFCNT_dec (on_next_submit);
1155	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2050	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1156		2051
1157	PROTOTYPES: DISABLE	2052	PROTOTYPES: DISABLE
1158		2053
		2054	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2055
		2056	BOOT:
		2057	{
		2058	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2059	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2060	}
		2061
		2062	void
		2063	DESTROY (SV *self)
		2064	CODE:
		2065	{
		2066	aio_wd wd = SvAIO_WD (self);
		2067	#if HAVE_AT
		2068	{
		2069	SV *callback = &PL_sv_undef;
		2070	dREQ; /* clobbers next_pri :/ */
		2071	next_pri = req->pri; /* restore next_pri */
		2072	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2073	req->type = EIO_WD_CLOSE;
		2074	req->wd = wd;
		2075	REQ_SEND;
		2076	}
		2077	#else
		2078	eio_wd_close_sync (wd);
		2079	#endif
		2080	}
		2081
1159	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2082	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1160		2083
1161	void	2084	void
1162	cancel (aio_req_ornot req)	2085	cancel (aio_req_ornot req)
1163	CODE:	2086	CODE:
1164	eio_cancel (req);	2087	eio_cancel (req);
1165		2088
1166	void	2089	void
1167	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2090	cb (aio_req_ornot req, SV *callback = NO_INIT)
1168	PPCODE:	2091	PPCODE:
1169	{	2092	{
1170	if (GIMME_V != G_VOID)	2093	if (GIMME_V != G_VOID)
1171	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2094	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1172		2095
1173	if (items > 1)	2096	if (items > 1)
1174	{	2097	{
1175	SV *cb_cv =get_cb (callback);	2098	SV *cb_cv = get_cb (callback);
1176		2099
1177	SvREFCNT_dec (req->callback);	2100	SvREFCNT_dec (req->callback);
1178	req->callback = SvREFCNT_inc (cb_cv);	2101	req->callback = SvREFCNT_inc (cb_cv);
1179	}	2102	}
1180	}	2103	}
…		…
1237	limit (aio_req grp, int limit)	2160	limit (aio_req grp, int limit)
1238	CODE:	2161	CODE:
1239	eio_grp_limit (grp, limit);	2162	eio_grp_limit (grp, limit);
1240		2163
1241	void	2164	void
1242	feed (aio_req grp, SV *callback=&PL_sv_undef)	2165	feed (aio_req grp, SV *callback = &PL_sv_undef)
1243	CODE:	2166	CODE:
1244	{	2167	{
1245	SvREFCNT_dec (grp->sv2);	2168	SvREFCNT_dec (grp->sv2);
1246	grp->sv2 = newSVsv (callback);	2169	grp->sv2 = newSVsv (callback);
1247	grp->feed = aio_grp_feed;	2170	grp->feed = aio_grp_feed;

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