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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.158 by root, Sat Jan 2 14:11:32 2010 UTC vs.
Revision 1.246 by root, Fri Jun 23 21:43:51 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
…		…
103		108
104	typedef SV SV8; /* byte-sv, used for argument-checking */	109	typedef SV SV8; /* byte-sv, used for argument-checking */
105	typedef int aio_rfd; /* read file desriptor */	110	typedef int aio_rfd; /* read file desriptor */
106	typedef int aio_wfd; /* write file descriptor */	111	typedef int aio_wfd; /* write file descriptor */
107		112
108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
109		114
110	#define EIO_REQ_MEMBERS \	115	#define EIO_REQ_MEMBERS \
111	SV *callback; \	116	SV *callback; \
112	SV *sv1, *sv2; \	117	SV *sv1, *sv2; \
		118	SV *sv3, *sv4; \
113	STRLEN stroffset; \	119	STRLEN stroffset; \
114	SV *self;	120	SV *self;
115		121
116	#define EIO_NO_WRAPPERS 1	122	#define EIO_NO_WRAPPERS 1
117		123
		124	#include "libeio/config.h"
118	#include "libeio/eio.h"	125	#include "libeio/eio.h"
119
120	#ifndef POSIX_FADV_NORMAL
121	# define POSIX_FADV_NORMAL 0
122	# define NO_FADVISE 1
123	#endif
124
125	#ifndef POSIX_FADV_SEQUENTIAL
126	# define POSIX_FADV_SEQUENTIAL 0
127	#endif
128
129	#ifndef POSIX_FADV_RANDOM
130	# define POSIX_FADV_RANDOM 0
131	#endif
132
133	#ifndef POSIX_FADV_NOREUSE
134	# define POSIX_FADV_NOREUSE 0
135	#endif
136
137	#ifndef POSIX_FADV_WILLNEED
138	# define POSIX_FADV_WILLNEED 0
139	#endif
140
141	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0
143	#endif
144		126
145	static int req_invoke (eio_req *req);	127	static int req_invoke (eio_req *req);
146	#define EIO_FINISH(req) req_invoke (req)	128	#define EIO_FINISH(req) req_invoke (req)
147	static void req_destroy (eio_req *grp);	129	static void req_destroy (eio_req *grp);
148	#define EIO_DESTROY(req) req_destroy (req)	130	#define EIO_DESTROY(req) req_destroy (req)
149		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
150	enum {	268	enum {
151	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	269	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
152	};	270	};
153		271
154	#include "libeio/eio.c"
155
156	typedef eio_req *aio_req;	272	typedef eio_req *aio_req;
157	typedef eio_req *aio_req_ornot;	273	typedef eio_req *aio_req_ornot;
		274	typedef eio_wd aio_wd;
158		275
159	static SV *on_next_submit;	276	static SV *on_next_submit;
160	static int next_pri = EIO_PRI_DEFAULT;	277	static int next_pri = EIO_PRI_DEFAULT;
161	static int max_outstanding;	278	static int max_outstanding;
162		279
163	static s_epipe respipe;	280	static s_epipe respipe;
164		281
165	static void req_destroy (aio_req req);	282	static void req_destroy (aio_req req);
166	static void req_cancel (aio_req req);	283	static void req_cancel (aio_req req);
167		284
168	static void want_poll (void)	285	static void
		286	want_poll (void)
169	{	287	{
170	/* write a dummy byte to the pipe so fh becomes ready */	288	/* write a dummy byte to the pipe so fh becomes ready */
171	s_epipe_signal (&respipe);	289	s_epipe_signal (&respipe);
172	}	290	}
173		291
174	static void done_poll (void)	292	static void
		293	done_poll (void)
175	{	294	{
176	/* read any signals sent by the worker threads */	295	/* read any signals sent by the worker threads */
177	s_epipe_drain (&respipe);	296	s_epipe_drain (&respipe);
178	}	297	}
179		298
180	/* must be called at most once */	299	/* must be called at most once */
		300	static SV *
181	static SV *req_sv (aio_req req, HV *stash)	301	req_sv (aio_req req, HV *stash)
182	{	302	{
183	if (!req->self)	303	if (!req->self)
184	{	304	{
185	req->self = (SV *)newHV ();	305	req->self = (SV *)newHV ();
186	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	306	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
187	}	307	}
188		308
189	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	309	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
190	}	310	}
191		311
192	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)
193	{	320	{
194	MAGIC *mg;	321	MAGIC *mg;
195		322
196	if (!SvROK (sv)	323	if (!SvROK (sv)
		324	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
197	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	325	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
198	&& SvSTASH (SvRV (sv)) != aio_req_stash	326	&& SvSTASH (SvRV (sv)) != aio_req_stash
199	&& !sv_derived_from (sv, "IO::AIO::REQ")))	327	&& !sv_derived_from (sv, "IO::AIO::REQ")))
200	croak ("object of class IO::AIO::REQ 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
…		…
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, aio_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
445	static void	696	static void ecb_cold
446	create_respipe (void)	697	create_respipe (void)
447	{	698	{
448	if (s_epipe_renew (&respipe))	699	if (s_epipe_renew (&respipe))
449	croak ("IO::AIO: unable to initialize result pipe");	700	croak ("IO::AIO: unable to initialize result pipe");
450	}	701	}
451		702
452	static void poll_wait (void)	703	static void
		704	poll_wait (void)
453	{	705	{
454	while (eio_nreqs ())	706	while (eio_nreqs ())
455	{	707	{
456	int size;	708	int size;
457		709
458	X_LOCK (reslock);	710	X_LOCK (EIO_POOL->reslock);
459	size = res_queue.size;	711	size = EIO_POOL->res_queue.size;
460	X_UNLOCK (reslock);	712	X_UNLOCK (EIO_POOL->reslock);
461		713
462	if (size)	714	if (size)
463	return;	715	return;
464		716
465	etp_maybe_start_thread ();	717	etp_maybe_start_thread (EIO_POOL);
466		718
467	s_epipe_wait (&respipe);	719	s_epipe_wait (&respipe);
468	}	720	}
469	}	721	}
470		722
471	static int poll_cb (void)	723	static int
		724	poll_cb (void)
472	{	725	{
473	for (;;)	726	for (;;)
474	{	727	{
475	int res = eio_poll ();	728	int res = eio_poll ();
476		729
…		…
482		735
483	poll_wait ();	736	poll_wait ();
484	}	737	}
485	}	738	}
486		739
487	static void atfork_child (void)	740	static void ecb_cold
		741	reinit (void)
488	{	742	{
489	create_respipe ();	743	create_respipe ();
		744
		745	if (eio_init (want_poll, done_poll) < 0)
		746	croak ("IO::AIO: unable to initialise eio library");
490	}	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	/*****************************************************************************/
491		788
492	static SV *	789	static SV *
493	get_cb (SV *cb_sv)	790	get_cb (SV *cb_sv)
494	{	791	{
495	SvGETMAGIC (cb_sv);	792	SvGETMAGIC (cb_sv);
496	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	793	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
497	}	794	}
498		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
499	#define dREQ \	816	#define dREQ \
500	SV *cb_cv; \	817	aio_req req = dreq (callback); \
501	aio_req req; \
502	int req_pri = next_pri; \
503	next_pri = EIO_PRI_DEFAULT; \
504	\
505	cb_cv = get_cb (callback); \
506	\
507	Newz (0, req, 1, eio_req); \
508	if (!req) \
509	croak ("out of memory during eio_req allocation"); \
510	\
511	req->callback = SvREFCNT_inc (cb_cv); \
512	req->pri = req_pri
513		818
514	#define REQ_SEND \	819	#define REQ_SEND \
515	PUTBACK; \	820	PUTBACK; \
516	req_submit (req); \	821	req_submit (req); \
517	SPAGAIN; \	822	SPAGAIN; \
518	\	823	\
519	if (GIMME_V != G_VOID) \	824	if (GIMME_V != G_VOID) \
520	XPUSHs (req_sv (req, aio_req_stash));	825	XPUSHs (req_sv (req, aio_req_stash));
521		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;
		892
522	MODULE = IO::AIO PACKAGE = IO::AIO	893	MODULE = IO::AIO PACKAGE = IO::AIO
523		894
524	PROTOTYPES: ENABLE	895	PROTOTYPES: ENABLE
525		896
526	BOOT:	897	BOOT:
527	{	898	{
528	static const struct {	899	static const struct {
529	const char *name;	900	const char *name;
530	IV iv;	901	IV iv;
531	} *civ, const_iv[] = {	902	} *civ, const_iv[] = {
532	# 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 },
533	# define const_eio(name) { # name, (IV) EIO_ ## name },	905	# define const_eio(name) { # name, (IV) EIO_ ## name },
534	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 */
535	const_iv (ENOSYS , ENOSYS)	909	const_iv (ENOSYS)
536	const_iv (O_RDONLY, O_RDONLY)	910	const_iv (EXDEV)
537	const_iv (O_WRONLY, O_WRONLY)	911	const_iv (EBADR)
538	const_iv (O_CREAT , O_CREAT)	912
539	const_iv (O_TRUNC , O_TRUNC)	913	/* for lseek */
540	#ifndef _WIN32	914	const_iv (SEEK_DATA)
541	const_iv (S_IFIFO , S_IFIFO)	915	const_iv (SEEK_HOLE)
542	#endif	916
543	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	917	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
544	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	918	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
545	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	919	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
546	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	920	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
547	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	921	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
548	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 (F_DUPFD_CLOEXEC)
		1002
		1003	const_iv (F_OFD_GETLK)
		1004	const_iv (F_OFD_SETLK)
		1005	const_iv (F_OFD_GETLKW)
		1006
		1007	const_iv (FIFREEZE)
		1008	const_iv (FITHAW)
		1009	const_iv (FITRIM)
		1010	const_iv (FICLONE)
		1011	const_iv (FICLONERANGE)
		1012	const_iv (FIDEDUPERANGE)
		1013
		1014	const_iv (FS_IOC_GETFLAGS)
		1015	const_iv (FS_IOC_SETFLAGS)
		1016	const_iv (FS_IOC_GETVERSION)
		1017	const_iv (FS_IOC_SETVERSION)
		1018	const_iv (FS_IOC_FIEMAP)
		1019	const_iv (FS_IOC_FSGETXATTR)
		1020	const_iv (FS_IOC_FSSETXATTR)
		1021	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1022	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1023	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1024
		1025	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1026
		1027	const_iv (FS_SECRM_FL)
		1028	const_iv (FS_UNRM_FL)
		1029	const_iv (FS_COMPR_FL)
		1030	const_iv (FS_SYNC_FL)
		1031	const_iv (FS_IMMUTABLE_FL)
		1032	const_iv (FS_APPEND_FL)
		1033	const_iv (FS_NODUMP_FL)
		1034	const_iv (FS_NOATIME_FL)
		1035	const_iv (FS_DIRTY_FL)
		1036	const_iv (FS_COMPRBLK_FL)
		1037	const_iv (FS_NOCOMP_FL)
		1038	const_iv (FS_ENCRYPT_FL)
		1039	const_iv (FS_BTREE_FL)
		1040	const_iv (FS_INDEX_FL)
		1041	const_iv (FS_JOURNAL_DATA_FL)
		1042	const_iv (FS_NOTAIL_FL)
		1043	const_iv (FS_DIRSYNC_FL)
		1044	const_iv (FS_TOPDIR_FL)
		1045	const_iv (FS_FL_USER_MODIFIABLE)
		1046
		1047	const_iv (FS_XFLAG_REALTIME)
		1048	const_iv (FS_XFLAG_PREALLOC)
		1049	const_iv (FS_XFLAG_IMMUTABLE)
		1050	const_iv (FS_XFLAG_APPEND)
		1051	const_iv (FS_XFLAG_SYNC)
		1052	const_iv (FS_XFLAG_NOATIME)
		1053	const_iv (FS_XFLAG_NODUMP)
		1054	const_iv (FS_XFLAG_RTINHERIT)
		1055	const_iv (FS_XFLAG_PROJINHERIT)
		1056	const_iv (FS_XFLAG_NOSYMLINKS)
		1057	const_iv (FS_XFLAG_EXTSIZE)
		1058	const_iv (FS_XFLAG_EXTSZINHERIT)
		1059	const_iv (FS_XFLAG_NODEFRAG)
		1060	const_iv (FS_XFLAG_FILESTREAM)
		1061	const_iv (FS_XFLAG_DAX)
		1062	const_iv (FS_XFLAG_HASATTR)
		1063
		1064	const_iv (FIEMAP_FLAG_SYNC)
		1065	const_iv (FIEMAP_FLAG_XATTR)
		1066	const_iv (FIEMAP_FLAGS_COMPAT)
		1067	const_iv (FIEMAP_EXTENT_LAST)
		1068	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1069	const_iv (FIEMAP_EXTENT_DELALLOC)
		1070	const_iv (FIEMAP_EXTENT_ENCODED)
		1071	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1072	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1073	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1074	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1075	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1076	const_iv (FIEMAP_EXTENT_MERGED)
		1077	const_iv (FIEMAP_EXTENT_SHARED)
		1078
		1079	const_iv (SPLICE_F_MOVE)
		1080	const_iv (SPLICE_F_NONBLOCK)
		1081	const_iv (SPLICE_F_MORE)
		1082	const_iv (SPLICE_F_GIFT)
		1083
		1084	/* these are libeio constants, and are independent of gendef0 */
		1085	const_eio (SEEK_SET)
		1086	const_eio (SEEK_CUR)
		1087	const_eio (SEEK_END)
		1088
		1089	const_eio (MCL_FUTURE)
		1090	const_eio (MCL_CURRENT)
549		1091
550	const_eio (MS_ASYNC)	1092	const_eio (MS_ASYNC)
551	const_eio (MS_INVALIDATE)	1093	const_eio (MS_INVALIDATE)
552	const_eio (MS_SYNC)	1094	const_eio (MS_SYNC)
553		1095
554	const_eio (MT_MODIFY)	1096	const_eio (MT_MODIFY)
555		1097
556	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1098	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
557	const_eio (SYNC_FILE_RANGE_WRITE)	1099	const_eio (SYNC_FILE_RANGE_WRITE)
558	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1100	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1101
		1102	const_eio (FALLOC_FL_KEEP_SIZE)
		1103	const_eio (FALLOC_FL_PUNCH_HOLE)
		1104	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1105	const_eio (FALLOC_FL_ZERO_RANGE)
		1106
		1107	const_eio (RENAME_NOREPLACE)
		1108	const_eio (RENAME_EXCHANGE)
		1109	const_eio (RENAME_WHITEOUT)
559		1110
560	const_eio (READDIR_DENTS)	1111	const_eio (READDIR_DENTS)
561	const_eio (READDIR_DIRS_FIRST)	1112	const_eio (READDIR_DIRS_FIRST)
562	const_eio (READDIR_STAT_ORDER)	1113	const_eio (READDIR_STAT_ORDER)
563	const_eio (READDIR_FOUND_UNKNOWN)	1114	const_eio (READDIR_FOUND_UNKNOWN)
…		…
574	};	1125	};
575		1126
576	aio_stash = gv_stashpv ("IO::AIO" , 1);	1127	aio_stash = gv_stashpv ("IO::AIO" , 1);
577	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1128	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
578	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1129	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1130	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
579		1131
580	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1132	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
581	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1133	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
582		1134
583	create_respipe ();	1135	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
584		1136
585	if (eio_init (want_poll, done_poll) < 0)	1137	reinit ();
586	croak ("IO::AIO: unable to initialise eio library");
587
588	/* atfork child called in fifo order, so before eio's handler */
589	X_THREAD_ATFORK (0, 0, atfork_child);
590	}	1138	}
591		1139
592	void	1140	void
		1141	reinit ()
		1142	PROTOTYPE:
		1143
		1144	void
593	max_poll_reqs (int nreqs)	1145	max_poll_reqs (unsigned int nreqs)
594	PROTOTYPE: $	1146	PROTOTYPE: $
595	CODE:	1147	CODE:
596	eio_set_max_poll_reqs (nreqs);	1148	eio_set_max_poll_reqs (nreqs);
597		1149
598	void	1150	void
…		…
600	PROTOTYPE: $	1152	PROTOTYPE: $
601	CODE:	1153	CODE:
602	eio_set_max_poll_time (nseconds);	1154	eio_set_max_poll_time (nseconds);
603		1155
604	void	1156	void
605	min_parallel (int nthreads)	1157	min_parallel (unsigned int nthreads)
606	PROTOTYPE: $	1158	PROTOTYPE: $
607	CODE:	1159	CODE:
608	eio_set_min_parallel (nthreads);	1160	eio_set_min_parallel (nthreads);
609		1161
610	void	1162	void
611	max_parallel (int nthreads)	1163	max_parallel (unsigned int nthreads)
612	PROTOTYPE: $	1164	PROTOTYPE: $
613	CODE:	1165	CODE:
614	eio_set_max_parallel (nthreads);	1166	eio_set_max_parallel (nthreads);
615		1167
616	void	1168	void
617	max_idle (int nthreads)	1169	max_idle (unsigned int nthreads)
618	PROTOTYPE: $	1170	PROTOTYPE: $
619	CODE:	1171	CODE:
620	eio_set_max_idle (nthreads);	1172	eio_set_max_idle (nthreads);
621		1173
622	void	1174	void
		1175	idle_timeout (unsigned int seconds)
		1176	PROTOTYPE: $
		1177	CODE:
		1178	eio_set_idle_timeout (seconds);
		1179
		1180	void
623	max_outstanding (int maxreqs)	1181	max_outstanding (unsigned int maxreqs)
624	PROTOTYPE: $	1182	PROTOTYPE: $
625	CODE:	1183	CODE:
626	max_outstanding = maxreqs;	1184	max_outstanding = maxreqs;
627		1185
628	void	1186	void
629	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1187	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
630	PROTOTYPE: $$$;$
631	PPCODE:	1188	PPCODE:
632	{	1189	{
633	dREQ;	1190	dREQ;
634		1191
		1192	req->type = EIO_WD_OPEN;
		1193	req_set_path1 (req, pathname);
		1194
		1195	REQ_SEND;
		1196	}
		1197
		1198	void
		1199	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1200	PPCODE:
		1201	{
		1202	dREQ;
		1203
635	req->type = EIO_OPEN;	1204	req->type = EIO_OPEN;
636	req->sv1 = newSVsv (pathname);	1205	req_set_path1 (req, pathname);
637	req->ptr1 = SvPVbyte_nolen (req->sv1);
638	req->int1 = flags;	1206	req->int1 = flags;
639	req->int2 = mode;	1207	req->int2 = mode;
640		1208
641	REQ_SEND;	1209	REQ_SEND;
642	}	1210	}
643		1211
644	void	1212	void
645	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1213	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
646	PROTOTYPE: $;$
647	ALIAS:	1214	ALIAS:
648	aio_fsync = EIO_FSYNC	1215	aio_fsync = EIO_FSYNC
649	aio_fdatasync = EIO_FDATASYNC	1216	aio_fdatasync = EIO_FDATASYNC
		1217	aio_syncfs = EIO_SYNCFS
650	PPCODE:	1218	PPCODE:
651	{	1219	{
652	int fd = s_fileno_croak (fh, 0);	1220	int fd = s_fileno_croak (fh, 0);
653	dREQ;	1221	dREQ;
654		1222
655	req->type = ix;	1223	req->type = ix;
656	req->sv1 = newSVsv (fh);	1224	req->sv1 = newSVsv (fh);
657	req->int1 = fd;	1225	req->int1 = fd;
658		1226
659	REQ_SEND (req);	1227	REQ_SEND;
660	}	1228	}
661		1229
662	void	1230	void
663	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1231	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
664	PROTOTYPE: $$$$;$
665	PPCODE:	1232	PPCODE:
666	{	1233	{
667	int fd = s_fileno_croak (fh, 0);	1234	int fd = s_fileno_croak (fh, 0);
668	dREQ;	1235	dREQ;
669		1236
670	req->type = EIO_SYNC_FILE_RANGE;	1237	req->type = EIO_SYNC_FILE_RANGE;
671	req->sv1 = newSVsv (fh);	1238	req->sv1 = newSVsv (fh);
672	req->int1 = fd;	1239	req->int1 = fd;
673	req->offs = offset;	1240	req->offs = offset;
674	req->size = nbytes;	1241	req->size = nbytes;
675	req->int2 = flags;	1242	req->int2 = flags;
676		1243
677	REQ_SEND (req);	1244	REQ_SEND;
678	}	1245	}
679		1246
680	void	1247	void
681	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1248	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
682	PROTOTYPE: $;$
683	PPCODE:	1249	PPCODE:
684	{	1250	{
685	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
686	int fd = s_fileno_croak (fh, 0);	1251	int fd = s_fileno_croak (fh, 0);
687	dREQ;	1252	dREQ;
688		1253
689	if (close_pipe < 0)	1254	req->type = EIO_FALLOCATE;
		1255	req->sv1 = newSVsv (fh);
		1256	req->int1 = fd;
		1257	req->int2 = mode;
		1258	req->offs = offset;
		1259	req->size = len;
		1260
		1261	REQ_SEND;
		1262	}
		1263
		1264	void
		1265	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1266	PPCODE:
		1267	{
		1268	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1269	int fd = s_fileno_croak (fh, 0);
		1270	dREQ;
		1271
		1272	if (expect_false (close_fd < 0))
690	{	1273	{
691	int pipefd [2];	1274	int pipefd [2];
692		1275
		1276	if (
		1277	#ifdef _WIN32
		1278	_pipe (pipefd, 1, _O_BINARY) < 0
		1279	#else
693	if (pipe (pipefd) < 0	1280	pipe (pipefd) < 0
694	|| close (pipefd [1]) < 0
695	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1281	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1282	#endif
		1283	|| close (pipefd [1]) < 0
		1284	)
696	abort (); /*D*/	1285	abort (); /*D*/
697		1286
698	close_pipe = pipefd [0];	1287	close_fd = pipefd [0];
699	}	1288	}
700		1289
701	req->type = EIO_DUP2;	1290	req->type = EIO_DUP2;
702	req->int1 = close_pipe;	1291	req->int1 = close_fd;
703	req->sv2 = newSVsv (fh);	1292	req->sv2 = newSVsv (fh);
704	req->int2 = fd;	1293	req->int2 = fd;
705		1294
706	REQ_SEND (req);	1295	REQ_SEND;
707	}	1296	}
708		1297
709	void	1298	void
		1299	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1300	PPCODE:
		1301	{
		1302	int fd = s_fileno_croak (fh, 0);
		1303	dREQ;
		1304
		1305	req->type = EIO_SEEK;
		1306	req->sv1 = newSVsv (fh);
		1307	req->int1 = fd;
		1308	req->offs = SvVAL64 (offset);
		1309	req->int2 = whence;
		1310
		1311	REQ_SEND;
		1312	}
		1313
		1314	void
710	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1315	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
711	ALIAS:	1316	ALIAS:
712	aio_read = EIO_READ	1317	aio_read = EIO_READ
713	aio_write = EIO_WRITE	1318	aio_write = EIO_WRITE
714	PROTOTYPE: $$$$$;$
715	PPCODE:	1319	PPCODE:
716	{	1320	{
717	STRLEN svlen;	1321	STRLEN svlen;
718	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1322	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
719	char *svptr = SvPVbyte (data, svlen);	1323	char *svptr = SvPVbyte (data, svlen);
…		…
732	len = svlen - dataoffset;	1336	len = svlen - dataoffset;
733	}	1337	}
734	else	1338	else
735	{	1339	{
736	/* read: check type and grow scalar as necessary */	1340	/* read: check type and grow scalar as necessary */
737	SvUPGRADE (data, SVt_PV);	1341	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
738	svptr = SvGROW (data, len + dataoffset + 1);	1342	svptr = sv_grow (data, len + dataoffset + 1);
		1343	else if (SvCUR (data) < len + dataoffset)
		1344	croak ("length + dataoffset outside of scalar, and cannot grow");
739	}	1345	}
740		1346
741	{	1347	{
742	dREQ;	1348	dREQ;
743		1349
…		…
759	REQ_SEND;	1365	REQ_SEND;
760	}	1366	}
761	}	1367	}
762		1368
763	void	1369	void
764	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1370	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
765	PROTOTYPE: $$;$	1371	ALIAS:
		1372	aio_ioctl = EIO_IOCTL
		1373	aio_fcntl = EIO_FCNTL
766	PPCODE:	1374	PPCODE:
767	{	1375	{
768	SV *data;	1376	int fd = s_fileno_croak (fh, 0);
		1377	char *svptr;
		1378
		1379	if (SvPOK (arg) || !SvNIOK (arg))
		1380	{
		1381	STRLEN svlen;
		1382	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1383	#ifdef IOCPARM_LEN
		1384	STRLEN need = IOCPARM_LEN (request);
		1385	#else
		1386	STRLEN need = 256;
		1387	#endif
		1388
		1389	if (svlen < need)
		1390	svptr = SvGROW (arg, need);
		1391	}
		1392	else
		1393	svptr = (char *)SvIV (arg);
		1394
		1395	{
		1396	dREQ;
		1397
		1398	req->type = ix;
		1399	req->sv1 = newSVsv (fh);
		1400	req->int1 = fd;
		1401	req->int2 = (long)request;
		1402	req->sv2 = SvREFCNT_inc (arg);
		1403	req->ptr2 = svptr;
		1404
		1405	REQ_SEND;
		1406	}
		1407	}
		1408
		1409	void
		1410	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1411	ALIAS:
		1412	aio_readlink = EIO_READLINK
		1413	aio_realpath = EIO_REALPATH
		1414	PPCODE:
		1415	{
769	dREQ;	1416	dREQ;
770		1417
771	req->type = EIO_READLINK;	1418	req->type = ix;
772	req->sv1 = newSVsv (path);	1419	req_set_path1 (req, pathname);
773	req->ptr1 = SvPVbyte_nolen (req->sv1);
774		1420
775	REQ_SEND;	1421	REQ_SEND;
776	}	1422	}
777		1423
778	void	1424	void
779	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1425	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
780	PROTOTYPE: $$$$;$
781	PPCODE:	1426	PPCODE:
782	{	1427	{
783	int ifd = s_fileno_croak (in_fh , 0);	1428	int ifd = s_fileno_croak (in_fh , 0);
784	int ofd = s_fileno_croak (out_fh, 1);	1429	int ofd = s_fileno_croak (out_fh, 1);
785	dREQ;	1430	dREQ;
786		1431
787	req->type = EIO_SENDFILE;	1432	req->type = EIO_SENDFILE;
788	req->sv1 = newSVsv (out_fh);	1433	req->sv1 = newSVsv (out_fh);
789	req->int1 = ofd;	1434	req->int1 = ofd;
…		…
794		1439
795	REQ_SEND;	1440	REQ_SEND;
796	}	1441	}
797		1442
798	void	1443	void
799	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1444	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
800	PROTOTYPE: $$$;$
801	PPCODE:	1445	PPCODE:
802	{	1446	{
803	int fd = s_fileno_croak (fh, 0);	1447	int fd = s_fileno_croak (fh, 0);
804	dREQ;	1448	dREQ;
805		1449
806	req->type = EIO_READAHEAD;	1450	req->type = EIO_READAHEAD;
807	req->sv1 = newSVsv (fh);	1451	req->sv1 = newSVsv (fh);
808	req->int1 = fd;	1452	req->int1 = fd;
…		…
811		1455
812	REQ_SEND;	1456	REQ_SEND;
813	}	1457	}
814		1458
815	void	1459	void
816	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1460	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
817	ALIAS:	1461	ALIAS:
818	aio_stat = EIO_STAT	1462	aio_stat = EIO_STAT
819	aio_lstat = EIO_LSTAT	1463	aio_lstat = EIO_LSTAT
		1464	aio_statvfs = EIO_STATVFS
820	PPCODE:	1465	PPCODE:
821	{	1466	{
822	dREQ;	1467	dREQ;
823		1468
824	req->sv1 = newSVsv (fh_or_path);	1469	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
825
826	if (SvPOK (req->sv1))
827	{
828	req->type = ix;
829	req->ptr1 = SvPVbyte_nolen (req->sv1);
830	}
831	else
832	{
833	req->type = EIO_FSTAT;
834	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
835	}
836		1470
837	REQ_SEND;	1471	REQ_SEND;
838	}	1472	}
839		1473
		1474	UV
		1475	major (UV dev)
		1476	ALIAS:
		1477	minor = 1
		1478	CODE:
		1479	RETVAL = ix ? minor (dev) : major (dev);
		1480	OUTPUT:
		1481	RETVAL
		1482
		1483	UV
		1484	makedev (UV maj, UV min)
		1485	CODE:
		1486	RETVAL = makedev (maj, min);
		1487	OUTPUT:
		1488	RETVAL
		1489
840	void	1490	void
841	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1491	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
842	PPCODE:	1492	PPCODE:
843	{	1493	{
844	dREQ;	1494	dREQ;
845		1495
846	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1496	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
847	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1497	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
848	req->sv1 = newSVsv (fh_or_path);	1498	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
849
850	if (SvPOK (req->sv1))
851	{
852	req->type = EIO_UTIME;
853	req->ptr1 = SvPVbyte_nolen (req->sv1);
854	}
855	else
856	{
857	req->type = EIO_FUTIME;
858	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
859	}
860		1499
861	REQ_SEND;	1500	REQ_SEND;
862	}	1501	}
863		1502
864	void	1503	void
865	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1504	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
866	PPCODE:	1505	PPCODE:
867	{	1506	{
868	dREQ;	1507	dREQ;
869		1508
870	req->sv1 = newSVsv (fh_or_path);
871	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1509	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
872		1510	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
873	if (SvPOK (req->sv1))
874	{
875	req->type = EIO_TRUNCATE;
876	req->ptr1 = SvPVbyte_nolen (req->sv1);
877	}
878	else
879	{
880	req->type = EIO_FTRUNCATE;
881	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
882	}
883		1511
884	REQ_SEND;	1512	REQ_SEND;
885	}	1513	}
886		1514
887	void	1515	void
888	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1516	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
889	ALIAS:
890	aio_chmod = EIO_CHMOD
891	aio_mkdir = EIO_MKDIR
892	PPCODE:	1517	PPCODE:
893	{	1518	{
894	dREQ;	1519	dREQ;
895		1520
896	req->int2 = mode;	1521	req->int2 = mode;
897	req->sv1 = newSVsv (fh_or_path);	1522	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
898
899	if (SvPOK (req->sv1))
900	{
901	req->type = ix;
902	req->ptr1 = SvPVbyte_nolen (req->sv1);
903	}
904	else
905	{
906	req->type = EIO_FCHMOD;
907	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
908	}
909		1523
910	REQ_SEND;	1524	REQ_SEND;
911	}	1525	}
912		1526
913	void	1527	void
914	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1528	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
915	PPCODE:	1529	PPCODE:
916	{	1530	{
917	dREQ;	1531	dREQ;
918		1532
919	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1533	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
920	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1534	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
921	req->sv1 = newSVsv (fh_or_path);	1535	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
922
923	if (SvPOK (req->sv1))
924	{
925	req->type = EIO_CHOWN;
926	req->ptr1 = SvPVbyte_nolen (req->sv1);
927	}
928	else
929	{
930	req->type = EIO_FCHOWN;
931	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
932	}
933		1536
934	REQ_SEND;	1537	REQ_SEND;
935	}	1538	}
936		1539
937	void	1540	void
938	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1541	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
939	PPCODE:	1542	PPCODE:
940	{	1543	{
941	dREQ;	1544	dREQ;
942		1545
943	req->type = EIO_READDIR;	1546	req->type = EIO_READDIR;
944	req->sv1 = newSVsv (pathname);
945	req->ptr1 = SvPVbyte_nolen (req->sv1);
946	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1547	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
947		1548
948	if (flags & EIO_READDIR_DENTS)	1549	if (flags & EIO_READDIR_DENTS)
949	req->int1 |= EIO_READDIR_CUSTOM2;	1550	req->int1 |= EIO_READDIR_CUSTOM2;
950		1551
		1552	req_set_path1 (req, pathname);
		1553
951	REQ_SEND;	1554	REQ_SEND;
952	}	1555	}
953		1556
954	void	1557	void
		1558	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1559	PPCODE:
		1560	{
		1561	dREQ;
		1562
		1563	req->type = EIO_MKDIR;
		1564	req->int2 = mode;
		1565	req_set_path1 (req, pathname);
		1566
		1567	REQ_SEND;
		1568	}
		1569
		1570	void
955	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1571	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
956	ALIAS:	1572	ALIAS:
957	aio_unlink = EIO_UNLINK	1573	aio_unlink = EIO_UNLINK
958	aio_rmdir = EIO_RMDIR	1574	aio_rmdir = EIO_RMDIR
959	aio_readdir = EIO_READDIR	1575	aio_readdir = EIO_READDIR
960	PPCODE:	1576	PPCODE:
961	{	1577	{
962	dREQ;	1578	dREQ;
963		1579
964	req->type = ix;	1580	req->type = ix;
965	req->sv1 = newSVsv (pathname);	1581	req_set_path1 (req, pathname);
966	req->ptr1 = SvPVbyte_nolen (req->sv1);
967		1582
968	REQ_SEND;	1583	REQ_SEND;
969	}	1584	}
970		1585
971	void	1586	void
972	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1587	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
973	ALIAS:	1588	ALIAS:
974	aio_link = EIO_LINK	1589	aio_link = EIO_LINK
975	aio_symlink = EIO_SYMLINK	1590	aio_symlink = EIO_SYMLINK
976	aio_rename = EIO_RENAME	1591	aio_rename = EIO_RENAME
977	PPCODE:	1592	PPCODE:
978	{	1593	{
		1594	eio_wd wd2 = 0;
979	dREQ;	1595	dREQ;
980		1596
981	req->type = ix;	1597	req->type = ix;
982	req->sv1 = newSVsv (oldpath);	1598	req_set_path1 (req, oldpath);
983	req->ptr1 = SvPVbyte_nolen (req->sv1);	1599	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
984	req->sv2 = newSVsv (newpath);	1600	req->int3 = (long)wd2;
985	req->ptr2 = SvPVbyte_nolen (req->sv2);
986		1601
987	REQ_SEND;	1602	REQ_SEND;
988	}	1603	}
989		1604
990	void	1605	void
		1606	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1607	PPCODE:
		1608	{
		1609	eio_wd wd2 = 0;
		1610	dREQ;
		1611
		1612	req->type = EIO_RENAME;
		1613	req_set_path1 (req, oldpath);
		1614	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1615	req->int2 = flags;
		1616	req->int3 = (long)wd2;
		1617
		1618	REQ_SEND;
		1619	}
		1620
		1621	void
991	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1622	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
992	PPCODE:	1623	PPCODE:
993	{	1624	{
994	dREQ;	1625	dREQ;
995		1626
996	req->type = EIO_MKNOD;	1627	req->type = EIO_MKNOD;
997	req->sv1 = newSVsv (pathname);
998	req->ptr1 = SvPVbyte_nolen (req->sv1);
999	req->int2 = (mode_t)mode;	1628	req->int2 = (mode_t)mode;
1000	req->offs = dev;	1629	req->offs = dev;
		1630	req_set_path1 (req, pathname);
1001		1631
1002	REQ_SEND;	1632	REQ_SEND;
1003	}	1633	}
1004		1634
1005	void	1635	void
1006	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1636	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1007	ALIAS:	1637	ALIAS:
1008	aio_mtouch = EIO_MTOUCH	1638	aio_mtouch = EIO_MTOUCH
1009	aio_msync = EIO_MSYNC	1639	aio_msync = EIO_MSYNC
1010	PROTOTYPE: $$$$;$
1011	PPCODE:	1640	PPCODE:
1012	{	1641	{
1013	STRLEN svlen;	1642	STRLEN svlen;
		1643	char *svptr = SvPVbyte (data, svlen);
1014	UV len = SvUV (length);	1644	UV len = SvUV (length);
1015	char *svptr = SvPVbyte (data, svlen);	1645
		1646	if (flags < 0)
		1647	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1016		1648
1017	if (offset < 0)	1649	if (offset < 0)
1018	offset += svlen;	1650	offset += svlen;
1019		1651
1020	if (offset < 0 || offset > svlen)	1652	if (offset < 0 || offset > svlen)
…		…
1025		1657
1026	{	1658	{
1027	dREQ;	1659	dREQ;
1028		1660
1029	req->type = ix;	1661	req->type = ix;
1030	req->size = len;
1031	req->sv2 = SvREFCNT_inc (data);	1662	req->sv2 = SvREFCNT_inc (data);
1032	req->ptr2 = (char *)svptr + offset;	1663	req->ptr2 = (char *)svptr + offset;
		1664	req->size = len;
1033	req->int1 = flags;	1665	req->int1 = flags;
1034		1666
1035	REQ_SEND;	1667	REQ_SEND;
1036	}	1668	}
1037	}	1669	}
1038		1670
1039	void	1671	void
		1672	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1673	PPCODE:
		1674	{
		1675	STRLEN svlen;
		1676	char *svptr = SvPVbyte (data, svlen);
		1677	UV len = SvUV (length);
		1678
		1679	if (offset < 0)
		1680	offset += svlen;
		1681
		1682	if (offset < 0 || offset > svlen)
		1683	croak ("offset outside of scalar");
		1684
		1685	if (!SvOK (length) || len + offset > svlen)
		1686	len = svlen - offset;
		1687
		1688	{
		1689	dREQ;
		1690
		1691	req->type = EIO_MLOCK;
		1692	req->sv2 = SvREFCNT_inc (data);
		1693	req->ptr2 = (char *)svptr + offset;
		1694	req->size = len;
		1695
		1696	REQ_SEND;
		1697	}
		1698	}
		1699
		1700	void
		1701	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1702	PPCODE:
		1703	{
		1704	dREQ;
		1705
		1706	req->type = EIO_MLOCKALL;
		1707	req->int1 = flags;
		1708
		1709	REQ_SEND;
		1710	}
		1711
		1712	void
		1713	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1714	PPCODE:
		1715	{
		1716	int fd = s_fileno_croak (fh, 0);
		1717	dREQ;
		1718
		1719	req->type = EIO_CUSTOM;
		1720	req->sv1 = newSVsv (fh);
		1721	req->int1 = fd;
		1722
		1723	req->feed = fiemap;
		1724	#if HAVE_FIEMAP
		1725	/* keep our fingers crossed that the next two types are 64 bit */
		1726	req->offs = start;
		1727	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1728	req->int2 = flags;
		1729	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1730	#endif
		1731
		1732	REQ_SEND;
		1733	}
		1734
		1735	void
1040	aio_busy (double delay, SV *callback=&PL_sv_undef)	1736	aio_busy (double delay, SV *callback = &PL_sv_undef)
1041	PPCODE:	1737	PPCODE:
1042	{	1738	{
1043	dREQ;	1739	dREQ;
1044		1740
1045	req->type = EIO_BUSY;	1741	req->type = EIO_BUSY;
…		…
1047		1743
1048	REQ_SEND;	1744	REQ_SEND;
1049	}	1745	}
1050		1746
1051	void	1747	void
1052	aio_group (SV *callback=&PL_sv_undef)	1748	aio_group (SV *callback = &PL_sv_undef)
1053	PROTOTYPE: ;$
1054	PPCODE:	1749	PPCODE:
1055	{	1750	{
1056	dREQ;	1751	dREQ;
1057		1752
1058	req->type = EIO_GROUP;	1753	req->type = EIO_GROUP;
1059		1754
		1755	PUTBACK;
1060	req_submit (req);	1756	req_submit (req);
		1757	SPAGAIN;
		1758
1061	XPUSHs (req_sv (req, aio_grp_stash));	1759	XPUSHs (req_sv (req, aio_grp_stash));
1062	}	1760	}
1063		1761
1064	void	1762	void
1065	aio_nop (SV *callback=&PL_sv_undef)	1763	aio_nop (SV *callback = &PL_sv_undef)
1066	ALIAS:	1764	ALIAS:
1067	aio_nop = EIO_NOP	1765	aio_nop = EIO_NOP
1068	aio_sync = EIO_SYNC	1766	aio_sync = EIO_SYNC
1069	PPCODE:	1767	PPCODE:
1070	{	1768	{
…		…
1074		1772
1075	REQ_SEND;	1773	REQ_SEND;
1076	}	1774	}
1077		1775
1078	int	1776	int
1079	aioreq_pri (int pri = 0)	1777	aioreq_pri (int pri = NO_INIT)
1080	PROTOTYPE: ;$
1081	CODE:	1778	CODE:
1082	RETVAL = next_pri;	1779	RETVAL = next_pri;
1083	if (items > 0)	1780	if (items > 0)
1084	{	1781	{
1085	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1782	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1097	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1794	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1098	next_pri = nice;	1795	next_pri = nice;
1099		1796
1100	void	1797	void
1101	flush ()	1798	flush ()
1102	PROTOTYPE:
1103	CODE:	1799	CODE:
1104	while (eio_nreqs ())	1800	while (eio_nreqs ())
1105	{	1801	{
1106	poll_wait ();	1802	poll_wait ();
1107	poll_cb ();	1803	poll_cb ();
1108	}	1804	}
1109		1805
1110	int	1806	int
1111	poll()	1807	poll ()
1112	PROTOTYPE:
1113	CODE:	1808	CODE:
1114	poll_wait ();	1809	poll_wait ();
1115	RETVAL = poll_cb ();	1810	RETVAL = poll_cb ();
1116	OUTPUT:	1811	OUTPUT:
1117	RETVAL	1812	RETVAL
1118		1813
1119	int	1814	int
1120	poll_fileno()	1815	poll_fileno ()
1121	PROTOTYPE:
1122	CODE:	1816	CODE:
1123	RETVAL = s_epipe_fd (&respipe);	1817	RETVAL = s_epipe_fd (&respipe);
1124	OUTPUT:	1818	OUTPUT:
1125	RETVAL	1819	RETVAL
1126		1820
1127	int	1821	int
1128	poll_cb(...)	1822	poll_cb (...)
1129	PROTOTYPE:	1823	PROTOTYPE:
1130	CODE:	1824	CODE:
1131	RETVAL = poll_cb ();	1825	RETVAL = poll_cb ();
1132	OUTPUT:	1826	OUTPUT:
1133	RETVAL	1827	RETVAL
1134		1828
1135	void	1829	void
1136	poll_wait()	1830	poll_wait ()
1137	PROTOTYPE:
1138	CODE:	1831	CODE:
1139	poll_wait ();	1832	poll_wait ();
1140		1833
1141	int	1834	int
1142	nreqs()	1835	nreqs ()
1143	PROTOTYPE:
1144	CODE:	1836	CODE:
1145	RETVAL = eio_nreqs ();	1837	RETVAL = eio_nreqs ();
1146	OUTPUT:	1838	OUTPUT:
1147	RETVAL	1839	RETVAL
1148		1840
1149	int	1841	int
1150	nready()	1842	nready ()
1151	PROTOTYPE:
1152	CODE:	1843	CODE:
1153	RETVAL = eio_nready ();	1844	RETVAL = eio_nready ();
1154	OUTPUT:	1845	OUTPUT:
1155	RETVAL	1846	RETVAL
1156		1847
1157	int	1848	int
1158	npending()	1849	npending ()
1159	PROTOTYPE:
1160	CODE:	1850	CODE:
1161	RETVAL = eio_npending ();	1851	RETVAL = eio_npending ();
1162	OUTPUT:	1852	OUTPUT:
1163	RETVAL	1853	RETVAL
1164		1854
1165	int	1855	int
1166	nthreads()	1856	nthreads ()
1167	PROTOTYPE:
1168	CODE:	1857	CODE:
1169	RETVAL = eio_nthreads ();	1858	RETVAL = eio_nthreads ();
1170	OUTPUT:	1859	OUTPUT:
1171	RETVAL	1860	RETVAL
1172		1861
1173	int	1862	int
1174	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1863	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1175	PROTOTYPE: $$$$
1176	CODE:	1864	CODE:
1177	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1178	RETVAL = posix_fadvise (fh, offset, length, advice);	1865	RETVAL = posix_fadvise (fh, offset, length, advice);
1179	#else
1180	RETVAL = errno = ENOSYS;
1181	#endif
1182	OUTPUT:	1866	OUTPUT:
1183	RETVAL	1867	RETVAL
1184		1868
1185	ssize_t	1869	IV
1186	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1870	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1187	PROTOTYPE: $$$$
1188	CODE:	1871	CODE:
1189	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1872	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1190	OUTPUT:	1873	OUTPUT:
1191	RETVAL	1874	RETVAL
1192		1875
		1876	void
		1877	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1878	PPCODE:
		1879	sv_unmagic (scalar, MMAP_MAGIC);
		1880	{
		1881	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1882	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1883	if (addr == (void *)-1)
		1884	XSRETURN_NO;
		1885
		1886	sv_force_normal (scalar);
		1887
		1888	/* we store the length in mg_obj, as namlen is I32 :/ */
		1889	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1890	->mg_obj = (SV *)length;
		1891
		1892	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1893
		1894	if (!(prot & PROT_WRITE))
		1895	SvREADONLY_on (scalar);
		1896
		1897	if (SvLEN (scalar))
		1898	Safefree (SvPVX (scalar));
		1899
		1900	SvPVX (scalar) = (char *)addr;
		1901	SvCUR_set (scalar, length);
		1902	SvLEN_set (scalar, 0);
		1903	SvPOK_only (scalar);
		1904
		1905	XSRETURN_YES;
		1906	}
		1907
		1908	void
		1909	munmap (SV *scalar)
		1910	CODE:
		1911	sv_unmagic (scalar, MMAP_MAGIC);
		1912
		1913	int
		1914	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1915	ALIAS:
		1916	mprotect = 1
		1917	CODE:
		1918	{
		1919	STRLEN svlen;
		1920	void *addr = SvPVbyte (scalar, svlen);
		1921	STRLEN len = SvUV (length);
		1922
		1923	if (offset < 0)
		1924	offset += svlen;
		1925
		1926	if (offset < 0 || offset > svlen)
		1927	croak ("offset outside of scalar");
		1928
		1929	if (!SvOK (length) || len + offset > svlen)
		1930	len = svlen - offset;
		1931
		1932	addr = (void *)(((intptr_t)addr) + offset);
		1933	eio_page_align (&addr, &len);
		1934
		1935	switch (ix)
		1936	{
		1937	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1938	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1939	}
		1940	}
		1941	OUTPUT:
		1942	RETVAL
		1943
		1944	int
		1945	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		1946	CODE:
		1947	{
		1948	STRLEN svlen;
		1949	void *addr = SvPVbyte (scalar, svlen);
		1950	size_t len = SvUV (length);
		1951
		1952	if (offset < 0)
		1953	offset += svlen;
		1954
		1955	if (offset < 0 || offset > svlen)
		1956	croak ("offset outside of scalar");
		1957
		1958	if (!SvOK (length) || len + offset > svlen)
		1959	len = svlen - offset;
		1960
		1961	addr = (void *)(((intptr_t)addr) + offset);
		1962	eio_page_align (&addr, &len);
		1963	#if _POSIX_MEMLOCK_RANGE
		1964	RETVAL = munlock (addr, len);
		1965	#else
		1966	RETVAL = EIO_ENOSYS ();
		1967	#endif
		1968	}
		1969	OUTPUT:
		1970	RETVAL
		1971
		1972	int
		1973	munlockall ()
		1974	CODE:
		1975	#if _POSIX_MEMLOCK
		1976	munlockall ();
		1977	#else
		1978	RETVAL = EIO_ENOSYS ();
		1979	#endif
		1980	OUTPUT:
		1981	RETVAL
		1982
		1983	int
		1984	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1985	CODE:
		1986	{
		1987	#if HAVE_LINUX_SPLICE
		1988	loff_t off_in_, off_out_;
		1989	RETVAL = splice (
		1990	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1991	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1992	length, flags
		1993	);
		1994	#else
		1995	RETVAL = EIO_ENOSYS ();
		1996	#endif
		1997	}
		1998	OUTPUT:
		1999	RETVAL
		2000
		2001	int
		2002	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2003	CODE:
		2004	#if HAVE_LINUX_SPLICE
		2005	RETVAL = tee (rfh, wfh, length, flags);
		2006	#else
		2007	RETVAL = EIO_ENOSYS ();
		2008	#endif
		2009	OUTPUT:
		2010	RETVAL
		2011
		2012	int
		2013	pipesize (aio_rfd rfh, int new_size = -1)
		2014	PROTOTYPE: $;$
		2015	CODE:
		2016	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2017	if (new_size >= 0)
		2018	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2019	else
		2020	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2021	#else
		2022	errno = ENOSYS;
		2023	RETVAL = -1;
		2024	#endif
		2025	OUTPUT:
		2026	RETVAL
		2027
		2028	void
		2029	pipe2 (int flags = 0)
		2030	PROTOTYPE: ;$
		2031	PPCODE:
		2032	{
		2033	int fd[2];
		2034	int res;
		2035
		2036	if (flags)
		2037	#if HAVE_PIPE2
		2038	res = pipe2 (fd, flags);
		2039	#else
		2040	res = (errno = ENOSYS, -1);
		2041	#endif
		2042	else
		2043	res = pipe (fd);
		2044
		2045	if (!res)
		2046	{
		2047	EXTEND (SP, 2);
		2048	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2049	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2050	}
		2051	}
		2052
1193	void _on_next_submit (SV *cb)	2053	void _on_next_submit (SV *cb)
1194	CODE:	2054	CODE:
1195	SvREFCNT_dec (on_next_submit);	2055	SvREFCNT_dec (on_next_submit);
1196	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2056	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1197		2057
1198	PROTOTYPES: DISABLE	2058	PROTOTYPES: DISABLE
1199		2059
		2060	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2061
		2062	BOOT:
		2063	{
		2064	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2065	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2066	}
		2067
		2068	void
		2069	DESTROY (SV *self)
		2070	CODE:
		2071	{
		2072	aio_wd wd = SvAIO_WD (self);
		2073	#if HAVE_AT
		2074	{
		2075	SV *callback = &PL_sv_undef;
		2076	dREQ; /* clobbers next_pri :/ */
		2077	next_pri = req->pri; /* restore next_pri */
		2078	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2079	req->type = EIO_WD_CLOSE;
		2080	req->wd = wd;
		2081	REQ_SEND;
		2082	}
		2083	#else
		2084	eio_wd_close_sync (wd);
		2085	#endif
		2086	}
		2087
1200	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2088	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1201		2089
1202	void	2090	void
1203	cancel (aio_req_ornot req)	2091	cancel (aio_req_ornot req)
1204	CODE:	2092	CODE:
1205	eio_cancel (req);	2093	eio_cancel (req);
1206		2094
1207	void	2095	void
1208	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2096	cb (aio_req_ornot req, SV *callback = NO_INIT)
1209	PPCODE:	2097	PPCODE:
1210	{	2098	{
1211	if (GIMME_V != G_VOID)	2099	if (GIMME_V != G_VOID)
1212	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2100	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1213		2101
1214	if (items > 1)	2102	if (items > 1)
1215	{	2103	{
1216	SV *cb_cv =get_cb (callback);	2104	SV *cb_cv = get_cb (callback);
1217		2105
1218	SvREFCNT_dec (req->callback);	2106	SvREFCNT_dec (req->callback);
1219	req->callback = SvREFCNT_inc (cb_cv);	2107	req->callback = SvREFCNT_inc (cb_cv);
1220	}	2108	}
1221	}	2109	}
…		…
1278	limit (aio_req grp, int limit)	2166	limit (aio_req grp, int limit)
1279	CODE:	2167	CODE:
1280	eio_grp_limit (grp, limit);	2168	eio_grp_limit (grp, limit);
1281		2169
1282	void	2170	void
1283	feed (aio_req grp, SV *callback=&PL_sv_undef)	2171	feed (aio_req grp, SV *callback = &PL_sv_undef)
1284	CODE:	2172	CODE:
1285	{	2173	{
1286	SvREFCNT_dec (grp->sv2);	2174	SvREFCNT_dec (grp->sv2);
1287	grp->sv2 = newSVsv (callback);	2175	grp->sv2 = newSVsv (callback);
1288	grp->feed = aio_grp_feed;	2176	grp->feed = aio_grp_feed;

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