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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.175 by root, Wed Dec 1 04:43:12 2010 UTC vs.
Revision 1.221 by root, Wed Aug 22 22:28:03 2012 UTC

…		…
11	#include <stddef.h>	11	#include <stddef.h>
12	#include <stdlib.h>	12	#include <stdlib.h>
13	#include <errno.h>	13	#include <errno.h>
14	#include <sys/types.h>	14	#include <sys/types.h>
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <sys/statvfs.h>
17	#include <limits.h>	16	#include <limits.h>
18	#include <fcntl.h>	17	#include <fcntl.h>
19	#include <sched.h>	18	#include <sched.h>
20		19
21	#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22	# include <sys/mman.h>	21	# include <sys/mman.h>
		22	#endif
		23
		24	#if __linux__
		25	# include <linux/fs.h>
		26	# ifdef FS_IOC_FIEMAP
		27	# include <linux/types.h>
		28	# include <linux/fiemap.h>
		29	# define HAVE_FIEMAP 1
		30	# endif
23	#endif	31	#endif
24		32
25	/* perl namespace pollution */	33	/* perl namespace pollution */
26	#undef VERSION	34	#undef VERSION
27
28	#ifdef _WIN32
29
30	# define EIO_STRUCT_DIRENT Direntry_t
31	# undef malloc
32	# undef free
33
34	// perl overrides all those nice win32 functions
35	# undef open
36	# undef read
37	# undef write
38	# undef send
39	# undef recv
40	# undef stat
41	# undef fstat
42	# define lstat stat
43	# undef truncate
44	# undef ftruncate
45	# undef open
46	# undef close
47	# undef unlink
48	# undef rmdir
49	# undef rename
50	# undef lseek
51
52	# define chown(a,b,c) (errno = ENOSYS, -1)
53	# define fchown(a,b,c) (errno = ENOSYS, -1)
54	# define fchmod(a,b) (errno = ENOSYS, -1)
55	# define symlink(a,b) (errno = ENOSYS, -1)
56	# define readlink(a,b,c) (errno = ENOSYS, -1)
57	# define mknod(a,b,c) (errno = ENOSYS, -1)
58	# define truncate(a,b) (errno = ENOSYS, -1)
59	# define ftruncate(fd,o) chsize ((fd), (o))
60	# define fsync(fd) _commit (fd)
61	# define opendir(fd) (errno = ENOSYS, 0)
62	# define readdir(fd) (errno = ENOSYS, -1)
63	# define closedir(fd) (errno = ENOSYS, -1)
64	# define mkdir(a,b) mkdir (a)
65
66	#else
67
68	# include <sys/time.h>
69	# include <sys/select.h>
70	# include <unistd.h>
71	# include <utime.h>
72	# include <signal.h>
73	# define EIO_STRUCT_DIRENT struct dirent
74
75	#endif
76		35
77	/* perl stupidly overrides readdir and maybe others */	36	/* perl stupidly overrides readdir and maybe others */
78	/* with thread-unsafe versions, imagine that :( */	37	/* with thread-unsafe versions, imagine that :( */
79	#undef readdir	38	#undef readdir
80	#undef opendir	39	#undef opendir
81	#undef closedir	40	#undef closedir
82		41
		42	#ifdef _WIN32
		43
		44	// perl overrides all those nice libc functions
		45
		46	#undef malloc
		47	#undef free
		48	#undef open
		49	#undef read
		50	#undef write
		51	#undef send
		52	#undef recv
		53	#undef stat
		54	#undef lstat
		55	#undef fstat
		56	#undef truncate
		57	#undef ftruncate
		58	#undef open
		59	#undef link
		60	#undef close
		61	#undef unlink
		62	#undef mkdir
		63	#undef rmdir
		64	#undef rename
		65	#undef lseek
		66	#undef opendir
		67	#undef readdir
		68	#undef closedir
		69	#undef chmod
		70	#undef fchmod
		71	#undef dup
		72	#undef dup2
		73	#undef abort
		74	#undef pipe
		75
		76	#define EIO_STRUCT_STAT struct _stati64
83	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STATI64
84		78
85	/* use NV for 32 bit perls as it allows larger offsets */
86	#if IVSIZE >= 8
87	# define VAL64 IV
88	# define SvVAL64 SvIV
89	# define newSVval64 newSViv
90	#else	79	#else
91	# define VAL64 NV	80
92	# define SvVAL64 SvNV	81	#include <sys/time.h>
93	# define newSVval64 newSVnv	82	#include <sys/select.h>
		83	#include <unistd.h>
		84	#include <utime.h>
		85	#include <signal.h>
		86
		87	#define EIO_STRUCT_STAT Stat_t
		88
94	#endif	89	#endif
95		90
96	/*****************************************************************************/	91	/*****************************************************************************/
97		92
98	#if __GNUC__ >= 3	93	#if __GNUC__ >= 3
…		…
108		103
109	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	105	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	106	typedef int aio_wfd; /* write file descriptor */
112		107
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		109
115	#define EIO_REQ_MEMBERS \	110	#define EIO_REQ_MEMBERS \
116	SV *callback; \	111	SV *callback; \
117	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
118	STRLEN stroffset; \	114	STRLEN stroffset; \
119	SV *self;	115	SV *self;
120		116
121	#define EIO_NO_WRAPPERS 1	117	#define EIO_NO_WRAPPERS 1
122		118
		119	#include "libeio/config.h"
123	#include "libeio/eio.h"	120	#include "libeio/eio.h"
124		121
125	#ifndef POSIX_FADV_NORMAL	122	static int req_invoke (eio_req *req);
126	# define POSIX_FADV_NORMAL 0	123	#define EIO_FINISH(req) req_invoke (req)
127	#endif	124	static void req_destroy (eio_req *grp);
128	#ifndef POSIX_FADV_SEQUENTIAL	125	#define EIO_DESTROY(req) req_destroy (req)
129	# define POSIX_FADV_SEQUENTIAL 0	126
130	#endif	127	#include "libeio/eio.c"
131	#ifndef POSIX_FADV_RANDOM
132	# define POSIX_FADV_RANDOM 0
133	#endif
134	#ifndef POSIX_FADV_NOREUSE
135	# define POSIX_FADV_NOREUSE 0
136	#endif
137	#ifndef POSIX_FADV_WILLNEED
138	# define POSIX_FADV_WILLNEED 0
139	#endif
140	#ifndef POSIX_FADV_DONTNEED
141	# define POSIX_FADV_DONTNEED 0
142	#endif
143		128
144	#if !HAVE_POSIX_FADVISE	129	#if !HAVE_POSIX_FADVISE
145	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	130	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
146	#endif	131	#endif
147		132
148	#ifndef POSIX_MADV_NORMAL
149	# define POSIX_MADV_NORMAL 0
150	#endif
151	#ifndef POSIX_MADV_SEQUENTIAL
152	# define POSIX_MADV_SEQUENTIAL 0
153	#endif
154	#ifndef POSIX_MADV_RANDOM
155	# define POSIX_MADV_RANDOM 0
156	#endif
157	#ifndef POSIX_MADV_WILLNEED
158	# define POSIX_MADV_WILLNEED 0
159	#endif
160	#ifndef POSIX_MADV_DONTNEED
161	# define POSIX_MADV_DONTNEED 0
162	#endif
163
164	#if !HAVE_POSIX_MADVISE	133	#if !HAVE_POSIX_MADVISE
165	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	134	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
166	#endif
167
168	#ifndef PROT_NONE
169	# define PROT_NONE 0
170	#endif
171	#ifndef PROT_READ
172	# define PROT_READ 0
173	#endif
174	#ifndef PROT_WRITE
175	# define PROT_READ 0
176	#endif
177	#ifndef PROT_EXEC
178	# define PROT_EXEC 0
179	#endif
180
181	#ifndef ST_NODEV
182	# define ST_NODEV 0
183	#endif
184	#ifndef ST_NOEXEC
185	# define ST_NOEXEC 0
186	#endif
187	#ifndef ST_SYNCHRONOUS
188	# define ST_SYNCHRONOUS 0
189	#endif
190	#ifndef ST_MANDLOCK
191	# define ST_MANDLOCK 0
192	#endif
193	#ifndef ST_WRITE
194	# define ST_WRITE 0
195	#endif
196	#ifndef ST_APPEND
197	# define ST_APPEND 0
198	#endif
199	#ifndef ST_IMMUTABLE
200	# define ST_IMMUTABLE 0
201	#endif
202	#ifndef ST_NOATIME
203	# define ST_NOATIME 0
204	#endif
205	#ifndef ST_NODIRATIME
206	# define ST_NODIRATIME 0
207	#endif
208	#ifndef ST_RELATIME
209	# define ST_RELATIME 0
210	#endif	135	#endif
211		136
212	#ifndef MAP_ANONYMOUS	137	#ifndef MAP_ANONYMOUS
213	# ifdef MAP_ANON	138	# ifdef MAP_ANON
214	# define MAP_ANONYMOUS MAP_ANON	139	# define MAP_ANONYMOUS MAP_ANON
215	# else	140	# else
216	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
217	# endif	142	# endif
218	#endif	143	#endif
219	#ifndef MAP_HUGETLB	144
220	# define MAP_HUGETLB 0	145	/* defines all sorts of constants to 0 unless they are already defined */
		146	#include "def0.h"
		147
		148	#ifndef makedev
		149	# define makedev(maj,min) (((maj) << 8) | (min))
221	#endif	150	#endif
222	#ifndef MAP_LOCKED	151	#ifndef major
223	# define MAP_LOCKED 0	152	# define major(dev) ((dev) >> 8)
224	#endif	153	#endif
225	#ifndef MAP_NORESERVE	154	#ifndef minor
226	# define MAP_NORESERVE 0	155	# define minor(dev) ((dev) & 0xff)
227	#endif
228	#ifndef MAP_POPULATE
229	# define MAP_POPULATE 0
230	#endif
231	#ifndef MAP_NONBLOCK
232	# define MAP_NONBLOCK 0
233	#endif	156	#endif
234		157
235	#ifndef PAGESIZE	158	#ifndef PAGESIZE
236	# define PAGESIZE sysconf (_SC_PAGESIZE)	159	# define PAGESIZE sysconf (_SC_PAGESIZE)
237	#endif	160	#endif
238		161
239	static int req_invoke (eio_req *req);	162	/*****************************************************************************/
240	#define EIO_FINISH(req) req_invoke (req)	163
241	static void req_destroy (eio_req *grp);	164	static void
242	#define EIO_DESTROY(req) req_destroy (req)	165	fiemap (eio_req *req)
		166	{
		167	req->result = -1;
		168
		169	#if HAVE_FIEMAP
		170	/* assume some c99 */
		171	struct fiemap *fiemap = 0;
		172	size_t end_offset;
		173	int count = req->int3;
		174
		175	req->flags |= EIO_FLAG_PTR1_FREE;
		176
		177	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		178	/* increase in 3.5kb steps */
		179	if (count < 0)
		180	count = 8;
		181
		182	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		183	errno = ENOMEM;
		184	if (!fiemap)
		185	return;
		186
		187	req->ptr1 = fiemap;
		188
		189	fiemap->fm_start = req->offs;
		190	fiemap->fm_length = req->size;
		191	fiemap->fm_flags = req->int2;
		192	fiemap->fm_extent_count = count;
		193
		194	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		195	return;
		196
		197	if (req->int3 >= 0 /* not autosizing */
		198	|| !fiemap->fm_mapped_extents /* no more extents */
		199	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		200	goto done;
		201
		202	/* else we have to loop -
		203	* it would be tempting (atcually I tried that first) to just query the
		204	* number of extents needed, but linux often feels like not returning all
		205	* extents, without telling us it left any out. this complicates
		206	* this quite a bit.
		207	*/
		208
		209	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		210
		211	for (;;)
		212	{
		213	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		214	char scratch[3072];
		215	struct fiemap *incmap = (struct fiemap *)scratch;
		216
		217	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		218	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		219	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		220	incmap->fm_flags = fiemap->fm_flags;
		221	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		222
		223	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap))
		224	return;
		225
		226	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		227	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		228	errno = ENOMEM;
		229	if (!fiemap)
		230	return;
		231
		232	req->ptr1 = fiemap;
		233
		234	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		235	{
		236	struct fiemap_extent *e = incmap->fm_extents + count;
		237
		238	if (e->fe_logical + e->fe_length >= end_offset)
		239	goto done;
		240
		241	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		242
		243	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		244	goto done;
		245
		246	}
		247	}
		248
		249	done:
		250	req->result = 0;
		251
		252	#else
		253	errno = ENOSYS;
		254	#endif
		255	}
		256
		257	/*****************************************************************************/
243		258
244	enum {	259	enum {
245	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	260	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
246	};	261	};
247		262
248	#include "libeio/eio.c"
249
250	typedef eio_req *aio_req;	263	typedef eio_req *aio_req;
251	typedef eio_req *aio_req_ornot;	264	typedef eio_req *aio_req_ornot;
		265	typedef eio_wd aio_wd;
252		266
253	static SV *on_next_submit;	267	static SV *on_next_submit;
254	static int next_pri = EIO_PRI_DEFAULT;	268	static int next_pri = EIO_PRI_DEFAULT;
255	static int max_outstanding;	269	static int max_outstanding;
256		270
257	static s_epipe respipe;	271	static s_epipe respipe;
258		272
259	static void req_destroy (aio_req req);	273	static void req_destroy (aio_req req);
260	static void req_cancel (aio_req req);	274	static void req_cancel (aio_req req);
261		275
262	static void want_poll (void)	276	static void
		277	want_poll (void)
263	{	278	{
264	/* write a dummy byte to the pipe so fh becomes ready */	279	/* write a dummy byte to the pipe so fh becomes ready */
265	s_epipe_signal (&respipe);	280	s_epipe_signal (&respipe);
266	}	281	}
267		282
268	static void done_poll (void)	283	static void
		284	done_poll (void)
269	{	285	{
270	/* read any signals sent by the worker threads */	286	/* read any signals sent by the worker threads */
271	s_epipe_drain (&respipe);	287	s_epipe_drain (&respipe);
272	}	288	}
273		289
274	/* must be called at most once */	290	/* must be called at most once */
		291	static SV *
275	static SV *req_sv (aio_req req, HV *stash)	292	req_sv (aio_req req, HV *stash)
276	{	293	{
277	if (!req->self)	294	if (!req->self)
278	{	295	{
279	req->self = (SV *)newHV ();	296	req->self = (SV *)newHV ();
280	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	297	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
281	}	298	}
282		299
283	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	300	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
284	}	301	}
285		302
286	static aio_req SvAIO_REQ (SV *sv)	303	static SV *
		304	newSVaio_wd (aio_wd wd)
		305	{
		306	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		307	}
		308
		309	static aio_req
		310	SvAIO_REQ (SV *sv)
287	{	311	{
288	MAGIC *mg;	312	MAGIC *mg;
289		313
290	if (!SvROK (sv)	314	if (!SvROK (sv)
		315	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
291	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	316	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
292	&& SvSTASH (SvRV (sv)) != aio_req_stash	317	&& SvSTASH (SvRV (sv)) != aio_req_stash
293	&& !sv_derived_from (sv, "IO::AIO::REQ")))	318	&& !sv_derived_from (sv, "IO::AIO::REQ")))
294	croak ("object of class IO::AIO::REQ expected");	319	croak ("object of class IO::AIO::REQ expected");
295		320
296	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	321	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
297		322
298	return mg ? (aio_req)mg->mg_ptr : 0;	323	return mg ? (aio_req)mg->mg_ptr : 0;
299	}	324	}
300		325
		326	static aio_wd
		327	SvAIO_WD (SV *sv)
		328	{
		329	if (!SvROK (sv)
		330	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		331	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		332	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		333
		334	return (aio_wd)(long)SvIVX (SvRV (sv));
		335	}
		336
		337	static void
301	static void aio_grp_feed (aio_req grp)	338	aio_grp_feed (aio_req grp)
302	{	339	{
303	if (grp->sv2 && SvOK (grp->sv2))	340	if (grp->sv2 && SvOK (grp->sv2))
304	{	341	{
305	dSP;	342	dSP;
306		343
…		…
314	FREETMPS;	351	FREETMPS;
315	LEAVE;	352	LEAVE;
316	}	353	}
317	}	354	}
318		355
		356	static void
319	static void req_submit (eio_req *req)	357	req_submit (eio_req *req)
320	{	358	{
321	eio_submit (req);	359	eio_submit (req);
322		360
323	if (expect_false (on_next_submit))	361	if (expect_false (on_next_submit))
324	{	362	{
…		…
331	PUTBACK;	369	PUTBACK;
332	call_sv (cb, G_DISCARD | G_EVAL);	370	call_sv (cb, G_DISCARD | G_EVAL);
333	}	371	}
334	}	372	}
335		373
		374	static int
336	static int req_invoke (eio_req *req)	375	req_invoke (eio_req *req)
337	{	376	{
338	if (req->flags & FLAG_SV2_RO_OFF)	377	if (req->flags & FLAG_SV2_RO_OFF)
339	SvREADONLY_off (req->sv2);	378	SvREADONLY_off (req->sv2);
340		379
341	if (!EIO_CANCELLED (req) && req->callback)	380	if (!EIO_CANCELLED (req) && req->callback)
…		…
352	/* do not recreate the result IV from scratch each time */	391	/* do not recreate the result IV from scratch each time */
353	if (expect_true (sv_result_cache))	392	if (expect_true (sv_result_cache))
354	{	393	{
355	sv_result = sv_result_cache; sv_result_cache = 0;	394	sv_result = sv_result_cache; sv_result_cache = 0;
356	SvIV_set (sv_result, req->result);	395	SvIV_set (sv_result, req->result);
		396	SvIOK_only (sv_result);
357	}	397	}
358	else	398	else
359	{	399	{
360	sv_result = newSViv (req->result);	400	sv_result = newSViv (req->result);
361	SvREADONLY_on (sv_result);	401	SvREADONLY_on (sv_result);
362	}	402	}
363		403
364	switch (req->type)	404	switch (req->type)
365	{	405	{
		406	case EIO_WD_OPEN:
		407	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		408	break;
		409
366	case EIO_READDIR:	410	case EIO_READDIR:
367	{	411	{
368	SV *rv = &PL_sv_undef;	412	SV *rv = &PL_sv_undef;
369		413
370	if (req->result >= 0)	414	if (req->result >= 0)
…		…
458	case EIO_STATVFS:	502	case EIO_STATVFS:
459	case EIO_FSTATVFS:	503	case EIO_FSTATVFS:
460	{	504	{
461	SV *rv = &PL_sv_undef;	505	SV *rv = &PL_sv_undef;
462		506
		507	#ifndef _WIN32
463	if (req->result >= 0)	508	if (req->result >= 0)
464	{	509	{
465	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	510	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
466	HV *hv = newHV ();	511	HV *hv = newHV ();
467		512
…		…
477	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	522	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
478	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	523	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
479	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	524	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
480	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	525	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
481	}	526	}
		527	#endif
482		528
483	PUSHs (rv);	529	PUSHs (rv);
484	}	530	}
485		531
486	break;	532	break;
…		…
502	case EIO_NOP:	548	case EIO_NOP:
503	case EIO_BUSY:	549	case EIO_BUSY:
504	break;	550	break;
505		551
506	case EIO_READLINK:	552	case EIO_READLINK:
		553	case EIO_REALPATH:
507	if (req->result > 0)	554	if (req->result > 0)
508	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	555	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
509	break;	556	break;
510		557
511	case EIO_STAT:	558	case EIO_STAT:
512	case EIO_LSTAT:	559	case EIO_LSTAT:
513	case EIO_FSTAT:	560	case EIO_FSTAT:
514	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	561	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		562
515	PL_laststatval = req->result;	563	if (!(PL_laststatval = req->result))
		564	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
516	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	565	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		566
517	PUSHs (sv_result);	567	PUSHs (sv_result);
		568	break;
		569
		570	case EIO_SEEK:
		571	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
518	break;	572	break;
519		573
520	case EIO_READ:	574	case EIO_READ:
521	{	575	{
522	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	576	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
525	SvSETMAGIC (req->sv2);	579	SvSETMAGIC (req->sv2);
526	PUSHs (sv_result);	580	PUSHs (sv_result);
527	}	581	}
528	break;	582	break;
529		583
		584	case EIO_CUSTOM:
		585	if (req->feed == fiemap)
		586	{
		587	#if HAVE_FIEMAP
		588	if (!req->result)
		589	{
		590	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		591
		592	if (fiemap->fm_extent_count)
		593	{
		594	AV *av = newAV ();
		595	int i;
		596
		597	while (fiemap->fm_mapped_extents)
		598	{
		599	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		600	AV *ext_av = newAV ();
		601
		602	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		603	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		604	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		605	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		606
		607	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		608	}
		609
		610	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		611	}
		612	else
		613	{
		614	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		615	PUSHs (sv_result);
		616	}
		617	}
		618	#endif
		619	}
		620	else
		621	PUSHs (sv_result);
		622	break;
		623
530	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */	624	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
531	if (req->result > 0)	625	if (req->result > 0)
532	SvIV_set (sv_result, 0);	626	SvIV_set (sv_result, 0);
533	/* FALLTHROUGH */	627	/* FALLTHROUGH */
534		628
535	default:	629	default:
…		…
555	}	649	}
556		650
557	return !!SvTRUE (ERRSV);	651	return !!SvTRUE (ERRSV);
558	}	652	}
559		653
		654	static void
560	static void req_destroy (aio_req req)	655	req_destroy (aio_req req)
561	{	656	{
562	if (req->self)	657	if (req->self)
563	{	658	{
564	sv_unmagic (req->self, PERL_MAGIC_ext);	659	sv_unmagic (req->self, PERL_MAGIC_ext);
565	SvREFCNT_dec (req->self);	660	SvREFCNT_dec (req->self);
566	}	661	}
567		662
568	SvREFCNT_dec (req->sv1);	663	SvREFCNT_dec (req->sv1);
569	SvREFCNT_dec (req->sv2);	664	SvREFCNT_dec (req->sv2);
		665	SvREFCNT_dec (req->sv3);
		666	SvREFCNT_dec (req->sv4);
570	SvREFCNT_dec (req->callback);	667	SvREFCNT_dec (req->callback);
571		668
572	Safefree (req);	669	free (req);
573	}	670	}
574		671
		672	static void
575	static void req_cancel_subs (aio_req grp)	673	req_cancel_subs (aio_req grp)
576	{	674	{
577	aio_req sub;
578
579	if (grp->type != EIO_GROUP)	675	if (grp->type != EIO_GROUP)
580	return;	676	return;
581		677
582	SvREFCNT_dec (grp->sv2);	678	SvREFCNT_dec (grp->sv2);
583	grp->sv2 = 0;	679	grp->sv2 = 0;
584		680
585	eio_grp_cancel (grp);	681	eio_grp_cancel (grp);
586	}	682	}
587		683
588	static void	684	static void ecb_cold
589	create_respipe (void)	685	create_respipe (void)
590	{	686	{
591	if (s_epipe_renew (&respipe))	687	if (s_epipe_renew (&respipe))
592	croak ("IO::AIO: unable to initialize result pipe");	688	croak ("IO::AIO: unable to initialize result pipe");
593	}	689	}
594		690
595	static void poll_wait (void)	691	static void
		692	poll_wait (void)
596	{	693	{
597	while (eio_nreqs ())	694	while (eio_nreqs ())
598	{	695	{
599	int size;	696	int size;
600		697
…		…
609		706
610	s_epipe_wait (&respipe);	707	s_epipe_wait (&respipe);
611	}	708	}
612	}	709	}
613		710
614	static int poll_cb (void)	711	static int
		712	poll_cb (void)
615	{	713	{
616	for (;;)	714	for (;;)
617	{	715	{
618	int res = eio_poll ();	716	int res = eio_poll ();
619		717
…		…
625		723
626	poll_wait ();	724	poll_wait ();
627	}	725	}
628	}	726	}
629		727
630	static void atfork_child (void)	728	static void ecb_cold
		729	reinit (void)
631	{	730	{
632	create_respipe ();	731	create_respipe ();
		732
		733	if (eio_init (want_poll, done_poll) < 0)
		734	croak ("IO::AIO: unable to initialise eio library");
633	}	735	}
634		736
635	/*****************************************************************************/	737	/*****************************************************************************/
636		738
637	#if !_POSIX_MAPPED_FILES	739	#if !_POSIX_MAPPED_FILES
638	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	740	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
639	# define munmap(addr,length) (errno = ENOSYS, -1)	741	# define munmap(addr,length) EIO_ENOSYS ()
		742	#endif
		743
		744	#if !_POSIX_MEMORY_PROTECTION
640	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)	745	# define mprotect(addr,len,prot) EIO_ENOSYS ()
641	# define PROT_NONE 0	746	# define PROT_NONE 0
642	# define PROT_WRITE 0	747	# define PROT_WRITE 0
643	# define MAP_PRIVATE 0	748	# define MAP_PRIVATE 0
644	# define MAP_SHARED 0	749	# define MAP_SHARED 0
645	# define MAP_FIXED 0	750	# define MAP_FIXED 0
646	#endif	751	#endif
647		752
648	#define MMAP_MAGIC PERL_MAGIC_ext	753	#define MMAP_MAGIC PERL_MAGIC_ext
649		754
650	static int	755	static int ecb_cold
651	mmap_free (pTHX_ SV *sv, MAGIC *mg)	756	mmap_free (pTHX_ SV *sv, MAGIC *mg)
652	{	757	{
653	int old_errno = errno;	758	int old_errno = errno;
654	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	759	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
655	errno = old_errno;	760	errno = old_errno;
…		…
679	{	784	{
680	SvGETMAGIC (cb_sv);	785	SvGETMAGIC (cb_sv);
681	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	786	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
682	}	787	}
683		788
		789	static aio_req ecb_noinline
		790	dreq (SV *callback)
		791	{
		792	SV *cb_cv;
		793	aio_req req;
		794	int req_pri = next_pri;
		795	next_pri = EIO_PRI_DEFAULT;
		796
		797	cb_cv = get_cb (callback);
		798
		799	req = calloc (sizeof (*req), 1);
		800	if (!req)
		801	croak ("out of memory during eio_req allocation");
		802
		803	req->callback = SvREFCNT_inc (cb_cv);
		804	req->pri = req_pri;
		805
		806	return req;
		807	}
		808
684	#define dREQ \	809	#define dREQ \
685	SV *cb_cv; \	810	aio_req req = dreq (callback); \
686	aio_req req; \
687	int req_pri = next_pri; \
688	next_pri = EIO_PRI_DEFAULT; \
689	\
690	cb_cv = get_cb (callback); \
691	\
692	Newz (0, req, 1, eio_req); \
693	if (!req) \
694	croak ("out of memory during eio_req allocation"); \
695	\
696	req->callback = SvREFCNT_inc (cb_cv); \
697	req->pri = req_pri
698		811
699	#define REQ_SEND \	812	#define REQ_SEND \
700	PUTBACK; \	813	PUTBACK; \
701	req_submit (req); \	814	req_submit (req); \
702	SPAGAIN; \	815	SPAGAIN; \
703	\	816	\
704	if (GIMME_V != G_VOID) \	817	if (GIMME_V != G_VOID) \
705	XPUSHs (req_sv (req, aio_req_stash));	818	XPUSHs (req_sv (req, aio_req_stash));
706		819
		820	ecb_inline void
		821	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		822	{
		823	if (expect_false (SvROK (path)))
		824	{
		825	SV *rv = SvRV (path);
		826	SV *wdob;
		827
		828	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		829	{
		830	path = AvARRAY (rv)[1];
		831	wdob = AvARRAY (rv)[0];
		832
		833	if (SvOK (wdob))
		834	{
		835	*wd = SvAIO_WD (wdob);
		836	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		837	}
		838	else
		839	*wd = EIO_INVALID_WD;
		840	}
		841	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		842	{
		843	*wd = (aio_wd)(long)SvIVX (rv);
		844	*wdsv = SvREFCNT_inc_NN (rv);
		845	*ptr = ".";
		846	return; /* path set to "." */
		847	}
		848	else
		849	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		850	}
		851
		852	*pathsv = newSVsv (path);
		853	*ptr = SvPVbyte_nolen (*pathsv);
		854	}
		855
		856	static void ecb_noinline
		857	req_set_path1 (aio_req req, SV *path)
		858	{
		859	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		860	}
		861
		862	static void ecb_noinline
		863	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		864	{
		865	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		866
		867	switch (SvTYPE (rv))
		868	{
		869	case SVt_PVIO:
		870	case SVt_PVLV:
		871	case SVt_PVGV:
		872	req->type = type_fh;
		873	req->sv1 = newSVsv (fh_or_path);
		874	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		875	break;
		876
		877	default:
		878	req->type = type_path;
		879	req_set_path1 (req, fh_or_path);
		880	break;
		881	}
		882	}
		883
		884	XS(boot_IO__AIO) ecb_cold;
		885
707	MODULE = IO::AIO PACKAGE = IO::AIO	886	MODULE = IO::AIO PACKAGE = IO::AIO
708		887
709	PROTOTYPES: ENABLE	888	PROTOTYPES: ENABLE
710		889
711	BOOT:	890	BOOT:
…		…
715	IV iv;	894	IV iv;
716	} *civ, const_iv[] = {	895	} *civ, const_iv[] = {
717	# define const_niv(name, value) { # name, (IV) value },	896	# define const_niv(name, value) { # name, (IV) value },
718	# define const_iv(name) { # name, (IV) name },	897	# define const_iv(name) { # name, (IV) name },
719	# define const_eio(name) { # name, (IV) EIO_ ## name },	898	# define const_eio(name) { # name, (IV) EIO_ ## name },
		899
		900	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		901
		902	const_iv (ENOSYS)
720	const_iv (EXDEV)	903	const_iv (EXDEV)
721	const_iv (ENOSYS)	904	const_iv (EBADR)
		905
722	const_iv (O_RDONLY)	906	const_iv (O_RDONLY)
723	const_iv (O_WRONLY)	907	const_iv (O_WRONLY)
724	const_iv (O_RDWR)	908	const_iv (O_RDWR)
725	const_iv (O_CREAT)	909	const_iv (O_CREAT)
726	const_iv (O_TRUNC)	910	const_iv (O_TRUNC)
727	const_iv (O_EXCL)	911	const_iv (O_EXCL)
728	const_iv (O_APPEND)	912	const_iv (O_APPEND)
729	#ifndef _WIN32	913
		914	const_iv (O_ASYNC)
		915	const_iv (O_DIRECT)
		916	const_iv (O_NOATIME)
		917
		918	const_iv (O_CLOEXEC)
		919	const_iv (O_NOCTTY)
		920	const_iv (O_NOFOLLOW)
		921	const_iv (O_NONBLOCK)
		922	const_iv (O_EXEC)
		923	const_iv (O_SEARCH)
		924	const_iv (O_DIRECTORY)
		925	const_iv (O_DSYNC)
		926	const_iv (O_RSYNC)
		927	const_iv (O_SYNC)
		928	const_iv (O_TTY_INIT)
		929
730	const_iv (S_IFIFO)	930	const_iv (S_IFIFO)
731	#endif	931	const_iv (S_IFCHR)
		932	const_iv (S_IFBLK)
		933	const_iv (S_IFLNK)
		934	const_iv (S_IFREG)
		935	const_iv (S_IFDIR)
		936	const_iv (S_IFWHT)
		937	const_iv (S_IFSOCK)
		938	const_iv (S_IFMT)
		939
732	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	940	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
733	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	941	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
734	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	942	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
735	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	943	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
736	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	944	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
…		…
770	const_iv (MAP_LOCKED)	978	const_iv (MAP_LOCKED)
771	const_iv (MAP_NORESERVE)	979	const_iv (MAP_NORESERVE)
772	const_iv (MAP_POPULATE)	980	const_iv (MAP_POPULATE)
773	const_iv (MAP_NONBLOCK)	981	const_iv (MAP_NONBLOCK)
774		982
		983	const_iv (FIEMAP_FLAG_SYNC)
		984	const_iv (FIEMAP_FLAG_XATTR)
		985	const_iv (FIEMAP_FLAGS_COMPAT)
		986	const_iv (FIEMAP_EXTENT_LAST)
		987	const_iv (FIEMAP_EXTENT_UNKNOWN)
		988	const_iv (FIEMAP_EXTENT_DELALLOC)
		989	const_iv (FIEMAP_EXTENT_ENCODED)
		990	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		991	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		992	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		993	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		994	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		995	const_iv (FIEMAP_EXTENT_MERGED)
		996	const_iv (FIEMAP_EXTENT_SHARED)
		997
		998	const_iv (SPLICE_F_MOVE)
		999	const_iv (SPLICE_F_NONBLOCK)
		1000	const_iv (SPLICE_F_MORE)
		1001	const_iv (SPLICE_F_GIFT)
		1002
		1003	const_iv (SEEK_DATA)
		1004	const_iv (SEEK_HOLE)
		1005
		1006	/* libeio constants */
		1007	const_eio (SEEK_SET)
		1008	const_eio (SEEK_CUR)
		1009	const_eio (SEEK_END)
		1010
775	const_eio (MCL_FUTURE)	1011	const_eio (MCL_FUTURE)
776	const_eio (MCL_CURRENT)	1012	const_eio (MCL_CURRENT)
777		1013
778	const_eio (MS_ASYNC)	1014	const_eio (MS_ASYNC)
779	const_eio (MS_INVALIDATE)	1015	const_eio (MS_INVALIDATE)
…		…
782	const_eio (MT_MODIFY)	1018	const_eio (MT_MODIFY)
783		1019
784	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1020	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
785	const_eio (SYNC_FILE_RANGE_WRITE)	1021	const_eio (SYNC_FILE_RANGE_WRITE)
786	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1022	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1023
		1024	const_eio (FALLOC_FL_KEEP_SIZE)
		1025	const_eio (FALLOC_FL_PUNCH_HOLE)
787		1026
788	const_eio (READDIR_DENTS)	1027	const_eio (READDIR_DENTS)
789	const_eio (READDIR_DIRS_FIRST)	1028	const_eio (READDIR_DIRS_FIRST)
790	const_eio (READDIR_STAT_ORDER)	1029	const_eio (READDIR_STAT_ORDER)
791	const_eio (READDIR_FOUND_UNKNOWN)	1030	const_eio (READDIR_FOUND_UNKNOWN)
…		…
802	};	1041	};
803		1042
804	aio_stash = gv_stashpv ("IO::AIO" , 1);	1043	aio_stash = gv_stashpv ("IO::AIO" , 1);
805	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1044	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
806	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1045	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1046	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
807		1047
808	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1048	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
809	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1049	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
810		1050
811	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1051	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
812		1052
813	create_respipe ();	1053	reinit ();
814
815	if (eio_init (want_poll, done_poll) < 0)
816	croak ("IO::AIO: unable to initialise eio library");
817
818	/* atfork child called in fifo order, so before eio's handler */
819	X_THREAD_ATFORK (0, 0, atfork_child);
820	}	1054	}
821		1055
822	void	1056	void
		1057	reinit ()
		1058	PROTOTYPE:
		1059
		1060	void
823	max_poll_reqs (int nreqs)	1061	max_poll_reqs (unsigned int nreqs)
824	PROTOTYPE: $	1062	PROTOTYPE: $
825	CODE:	1063	CODE:
826	eio_set_max_poll_reqs (nreqs);	1064	eio_set_max_poll_reqs (nreqs);
827		1065
828	void	1066	void
…		…
830	PROTOTYPE: $	1068	PROTOTYPE: $
831	CODE:	1069	CODE:
832	eio_set_max_poll_time (nseconds);	1070	eio_set_max_poll_time (nseconds);
833		1071
834	void	1072	void
835	min_parallel (int nthreads)	1073	min_parallel (unsigned int nthreads)
836	PROTOTYPE: $	1074	PROTOTYPE: $
837	CODE:	1075	CODE:
838	eio_set_min_parallel (nthreads);	1076	eio_set_min_parallel (nthreads);
839		1077
840	void	1078	void
841	max_parallel (int nthreads)	1079	max_parallel (unsigned int nthreads)
842	PROTOTYPE: $	1080	PROTOTYPE: $
843	CODE:	1081	CODE:
844	eio_set_max_parallel (nthreads);	1082	eio_set_max_parallel (nthreads);
845		1083
846	void	1084	void
847	max_idle (int nthreads)	1085	max_idle (unsigned int nthreads)
848	PROTOTYPE: $	1086	PROTOTYPE: $
849	CODE:	1087	CODE:
850	eio_set_max_idle (nthreads);	1088	eio_set_max_idle (nthreads);
851		1089
852	void	1090	void
		1091	idle_timeout (unsigned int seconds)
		1092	PROTOTYPE: $
		1093	CODE:
		1094	eio_set_idle_timeout (seconds);
		1095
		1096	void
853	max_outstanding (int maxreqs)	1097	max_outstanding (unsigned int maxreqs)
854	PROTOTYPE: $	1098	PROTOTYPE: $
855	CODE:	1099	CODE:
856	max_outstanding = maxreqs;	1100	max_outstanding = maxreqs;
857		1101
858	void	1102	void
		1103	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1104	PPCODE:
		1105	{
		1106	dREQ;
		1107
		1108	req->type = EIO_WD_OPEN;
		1109	req_set_path1 (req, pathname);
		1110
		1111	REQ_SEND;
		1112	}
		1113
		1114	void
859	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1115	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
860	PPCODE:	1116	PPCODE:
861	{	1117	{
862	dREQ;	1118	dREQ;
863		1119
864	req->type = EIO_OPEN;	1120	req->type = EIO_OPEN;
865	req->sv1 = newSVsv (pathname);	1121	req_set_path1 (req, pathname);
866	req->ptr1 = SvPVbyte_nolen (req->sv1);
867	req->int1 = flags;	1122	req->int1 = flags;
868	req->int2 = mode;	1123	req->int2 = mode;
869		1124
870	REQ_SEND;	1125	REQ_SEND;
871	}	1126	}
…		…
873	void	1128	void
874	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1129	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
875	ALIAS:	1130	ALIAS:
876	aio_fsync = EIO_FSYNC	1131	aio_fsync = EIO_FSYNC
877	aio_fdatasync = EIO_FDATASYNC	1132	aio_fdatasync = EIO_FDATASYNC
		1133	aio_syncfs = EIO_SYNCFS
878	PPCODE:	1134	PPCODE:
879	{	1135	{
880	int fd = s_fileno_croak (fh, 0);	1136	int fd = s_fileno_croak (fh, 0);
881	dREQ;	1137	dREQ;
882		1138
883	req->type = ix;	1139	req->type = ix;
884	req->sv1 = newSVsv (fh);	1140	req->sv1 = newSVsv (fh);
885	req->int1 = fd;	1141	req->int1 = fd;
886		1142
887	REQ_SEND (req);	1143	REQ_SEND;
888	}	1144	}
889		1145
890	void	1146	void
891	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1147	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
892	PPCODE:	1148	PPCODE:
893	{	1149	{
894	int fd = s_fileno_croak (fh, 0);	1150	int fd = s_fileno_croak (fh, 0);
895	dREQ;	1151	dREQ;
896		1152
897	req->type = EIO_SYNC_FILE_RANGE;	1153	req->type = EIO_SYNC_FILE_RANGE;
898	req->sv1 = newSVsv (fh);	1154	req->sv1 = newSVsv (fh);
899	req->int1 = fd;	1155	req->int1 = fd;
900	req->offs = offset;	1156	req->offs = offset;
901	req->size = nbytes;	1157	req->size = nbytes;
902	req->int2 = flags;	1158	req->int2 = flags;
903		1159
904	REQ_SEND (req);	1160	REQ_SEND;
		1161	}
		1162
		1163	void
		1164	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1165	PPCODE:
		1166	{
		1167	int fd = s_fileno_croak (fh, 0);
		1168	dREQ;
		1169
		1170	req->type = EIO_FALLOCATE;
		1171	req->sv1 = newSVsv (fh);
		1172	req->int1 = fd;
		1173	req->int2 = mode;
		1174	req->offs = offset;
		1175	req->size = len;
		1176
		1177	REQ_SEND;
905	}	1178	}
906		1179
907	void	1180	void
908	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1181	aio_close (SV *fh, SV *callback=&PL_sv_undef)
909	PPCODE:	1182	PPCODE:
910	{	1183	{
911	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1184	static int close_fd = -1; /* dummy fd to close fds via dup2 */
912	int fd = s_fileno_croak (fh, 0);	1185	int fd = s_fileno_croak (fh, 0);
913	dREQ;	1186	dREQ;
914		1187
915	if (close_pipe < 0)	1188	if (expect_false (close_fd < 0))
916	{	1189	{
917	int pipefd [2];	1190	int pipefd [2];
918		1191
		1192	if (
		1193	#ifdef _WIN32
		1194	_pipe (pipefd, 1, _O_BINARY) < 0
		1195	#else
919	if (pipe (pipefd) < 0	1196	pipe (pipefd) < 0
920	|| close (pipefd [1]) < 0
921	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1197	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1198	#endif
		1199	|| close (pipefd [1]) < 0
		1200	)
922	abort (); /*D*/	1201	abort (); /*D*/
923		1202
924	close_pipe = pipefd [0];	1203	close_fd = pipefd [0];
925	}	1204	}
926		1205
927	req->type = EIO_DUP2;	1206	req->type = EIO_DUP2;
928	req->int1 = close_pipe;	1207	req->int1 = close_fd;
929	req->sv2 = newSVsv (fh);	1208	req->sv2 = newSVsv (fh);
930	req->int2 = fd;	1209	req->int2 = fd;
931		1210
932	REQ_SEND (req);	1211	REQ_SEND;
		1212	}
		1213
		1214	void
		1215	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1216	PPCODE:
		1217	{
		1218	int fd = s_fileno_croak (fh, 0);
		1219	dREQ;
		1220
		1221	req->type = EIO_SEEK;
		1222	req->sv1 = newSVsv (fh);
		1223	req->int1 = fd;
		1224	req->offs = SvVAL64 (offset);
		1225	req->int2 = whence;
		1226
		1227	REQ_SEND;
933	}	1228	}
934		1229
935	void	1230	void
936	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1231	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
937	ALIAS:	1232	ALIAS:
…		…
958	}	1253	}
959	else	1254	else
960	{	1255	{
961	/* read: check type and grow scalar as necessary */	1256	/* read: check type and grow scalar as necessary */
962	SvUPGRADE (data, SVt_PV);	1257	SvUPGRADE (data, SVt_PV);
		1258	if (SvLEN (data) >= SvCUR (data))
963	svptr = SvGROW (data, len + dataoffset + 1);	1259	svptr = SvGROW (data, len + dataoffset + 1);
		1260	else if (SvCUR (data) < len + dataoffset)
		1261	croak ("length + dataoffset outside of scalar, and cannot grow");
964	}	1262	}
965		1263
966	{	1264	{
967	dREQ;	1265	dREQ;
968		1266
…		…
984	REQ_SEND;	1282	REQ_SEND;
985	}	1283	}
986	}	1284	}
987		1285
988	void	1286	void
989	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1287	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
		1288	ALIAS:
		1289	aio_readlink = EIO_READLINK
		1290	aio_realpath = EIO_REALPATH
990	PPCODE:	1291	PPCODE:
991	{	1292	{
992	SV *data;
993	dREQ;	1293	dREQ;
994		1294
995	req->type = EIO_READLINK;	1295	req->type = ix;
996	req->sv1 = newSVsv (path);	1296	req_set_path1 (req, pathname);
997	req->ptr1 = SvPVbyte_nolen (req->sv1);
998		1297
999	REQ_SEND;	1298	REQ_SEND;
1000	}	1299	}
1001		1300
1002	void	1301	void
1003	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1302	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1004	PPCODE:	1303	PPCODE:
1005	{	1304	{
1006	int ifd = s_fileno_croak (in_fh , 0);	1305	int ifd = s_fileno_croak (in_fh , 0);
1007	int ofd = s_fileno_croak (out_fh, 1);	1306	int ofd = s_fileno_croak (out_fh, 1);
1008	dREQ;	1307	dREQ;
1009		1308
1010	req->type = EIO_SENDFILE;	1309	req->type = EIO_SENDFILE;
1011	req->sv1 = newSVsv (out_fh);	1310	req->sv1 = newSVsv (out_fh);
1012	req->int1 = ofd;	1311	req->int1 = ofd;
…		…
1020		1319
1021	void	1320	void
1022	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1321	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1023	PPCODE:	1322	PPCODE:
1024	{	1323	{
1025	int fd = s_fileno_croak (fh, 0);	1324	int fd = s_fileno_croak (fh, 0);
1026	dREQ;	1325	dREQ;
1027		1326
1028	req->type = EIO_READAHEAD;	1327	req->type = EIO_READAHEAD;
1029	req->sv1 = newSVsv (fh);	1328	req->sv1 = newSVsv (fh);
1030	req->int1 = fd;	1329	req->int1 = fd;
…		…
1042	aio_statvfs = EIO_STATVFS	1341	aio_statvfs = EIO_STATVFS
1043	PPCODE:	1342	PPCODE:
1044	{	1343	{
1045	dREQ;	1344	dREQ;
1046		1345
1047	req->sv1 = newSVsv (fh_or_path);	1346	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1048
1049	if (SvPOK (req->sv1))
1050	{
1051	req->type = ix;
1052	req->ptr1 = SvPVbyte_nolen (req->sv1);
1053	}
1054	else
1055	{
1056	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1057	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1058	}
1059		1347
1060	REQ_SEND;	1348	REQ_SEND;
1061	}	1349	}
		1350
		1351	UV
		1352	major (UV dev)
		1353	ALIAS:
		1354	minor = 1
		1355	CODE:
		1356	RETVAL = ix ? major (dev) : minor (dev);
		1357	OUTPUT:
		1358	RETVAL
		1359
		1360	UV
		1361	makedev (UV maj, UV min)
		1362	CODE:
		1363	RETVAL = makedev (maj, min);
		1364	OUTPUT:
		1365	RETVAL
1062		1366
1063	void	1367	void
1064	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1368	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
1065	PPCODE:	1369	PPCODE:
1066	{	1370	{
1067	dREQ;	1371	dREQ;
1068		1372
1069	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1373	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1070	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1374	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1071	req->sv1 = newSVsv (fh_or_path);	1375	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1072
1073	if (SvPOK (req->sv1))
1074	{
1075	req->type = EIO_UTIME;
1076	req->ptr1 = SvPVbyte_nolen (req->sv1);
1077	}
1078	else
1079	{
1080	req->type = EIO_FUTIME;
1081	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1082	}
1083		1376
1084	REQ_SEND;	1377	REQ_SEND;
1085	}	1378	}
1086		1379
1087	void	1380	void
1088	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1381	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1089	PPCODE:	1382	PPCODE:
1090	{	1383	{
1091	dREQ;	1384	dREQ;
1092		1385
1093	req->sv1 = newSVsv (fh_or_path);
1094	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1386	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1095		1387	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1096	if (SvPOK (req->sv1))
1097	{
1098	req->type = EIO_TRUNCATE;
1099	req->ptr1 = SvPVbyte_nolen (req->sv1);
1100	}
1101	else
1102	{
1103	req->type = EIO_FTRUNCATE;
1104	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1105	}
1106		1388
1107	REQ_SEND;	1389	REQ_SEND;
1108	}	1390	}
1109		1391
1110	void	1392	void
1111	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1393	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1112	ALIAS:
1113	aio_chmod = EIO_CHMOD
1114	aio_mkdir = EIO_MKDIR
1115	PPCODE:	1394	PPCODE:
1116	{	1395	{
1117	dREQ;	1396	dREQ;
1118		1397
1119	req->int2 = mode;	1398	req->int2 = mode;
1120	req->sv1 = newSVsv (fh_or_path);	1399	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1121
1122	if (SvPOK (req->sv1))
1123	{
1124	req->type = ix;
1125	req->ptr1 = SvPVbyte_nolen (req->sv1);
1126	}
1127	else
1128	{
1129	req->type = EIO_FCHMOD;
1130	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1131	}
1132		1400
1133	REQ_SEND;	1401	REQ_SEND;
1134	}	1402	}
1135		1403
1136	void	1404	void
…		…
1139	{	1407	{
1140	dREQ;	1408	dREQ;
1141		1409
1142	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1410	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1143	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1411	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1144	req->sv1 = newSVsv (fh_or_path);	1412	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1145
1146	if (SvPOK (req->sv1))
1147	{
1148	req->type = EIO_CHOWN;
1149	req->ptr1 = SvPVbyte_nolen (req->sv1);
1150	}
1151	else
1152	{
1153	req->type = EIO_FCHOWN;
1154	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1155	}
1156		1413
1157	REQ_SEND;	1414	REQ_SEND;
1158	}	1415	}
1159		1416
1160	void	1417	void
…		…
1162	PPCODE:	1419	PPCODE:
1163	{	1420	{
1164	dREQ;	1421	dREQ;
1165		1422
1166	req->type = EIO_READDIR;	1423	req->type = EIO_READDIR;
1167	req->sv1 = newSVsv (pathname);
1168	req->ptr1 = SvPVbyte_nolen (req->sv1);
1169	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1424	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1170		1425
1171	if (flags & EIO_READDIR_DENTS)	1426	if (flags & EIO_READDIR_DENTS)
1172	req->int1 |= EIO_READDIR_CUSTOM2;	1427	req->int1 |= EIO_READDIR_CUSTOM2;
1173		1428
		1429	req_set_path1 (req, pathname);
		1430
1174	REQ_SEND;	1431	REQ_SEND;
		1432	}
		1433
		1434	void
		1435	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1436	PPCODE:
		1437	{
		1438	dREQ;
		1439
		1440	req->type = EIO_MKDIR;
		1441	req->int2 = mode;
		1442	req_set_path1 (req, pathname);
		1443
		1444	REQ_SEND;
1175	}	1445	}
1176		1446
1177	void	1447	void
1178	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1448	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1179	ALIAS:	1449	ALIAS:
…		…
1183	PPCODE:	1453	PPCODE:
1184	{	1454	{
1185	dREQ;	1455	dREQ;
1186		1456
1187	req->type = ix;	1457	req->type = ix;
1188	req->sv1 = newSVsv (pathname);	1458	req_set_path1 (req, pathname);
1189	req->ptr1 = SvPVbyte_nolen (req->sv1);
1190		1459
1191	REQ_SEND;	1460	REQ_SEND;
1192	}	1461	}
1193		1462
1194	void	1463	void
…		…
1197	aio_link = EIO_LINK	1466	aio_link = EIO_LINK
1198	aio_symlink = EIO_SYMLINK	1467	aio_symlink = EIO_SYMLINK
1199	aio_rename = EIO_RENAME	1468	aio_rename = EIO_RENAME
1200	PPCODE:	1469	PPCODE:
1201	{	1470	{
		1471	eio_wd wd2 = 0;
1202	dREQ;	1472	dREQ;
1203		1473
1204	req->type = ix;	1474	req->type = ix;
1205	req->sv1 = newSVsv (oldpath);	1475	req_set_path1 (req, oldpath);
1206	req->ptr1 = SvPVbyte_nolen (req->sv1);	1476	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1207	req->sv2 = newSVsv (newpath);	1477	req->int3 = (long)wd2;
1208	req->ptr2 = SvPVbyte_nolen (req->sv2);
1209		1478
1210	REQ_SEND;	1479	REQ_SEND;
1211	}	1480	}
1212		1481
1213	void	1482	void
…		…
1215	PPCODE:	1484	PPCODE:
1216	{	1485	{
1217	dREQ;	1486	dREQ;
1218		1487
1219	req->type = EIO_MKNOD;	1488	req->type = EIO_MKNOD;
1220	req->sv1 = newSVsv (pathname);
1221	req->ptr1 = SvPVbyte_nolen (req->sv1);
1222	req->int2 = (mode_t)mode;	1489	req->int2 = (mode_t)mode;
1223	req->offs = dev;	1490	req->offs = dev;
		1491	req_set_path1 (req, pathname);
1224		1492
1225	REQ_SEND;	1493	REQ_SEND;
1226	}	1494	}
1227		1495
1228	void	1496	void
…		…
1295		1563
1296	req->type = EIO_MLOCKALL;	1564	req->type = EIO_MLOCKALL;
1297	req->int1 = flags;	1565	req->int1 = flags;
1298		1566
1299	REQ_SEND;	1567	REQ_SEND;
		1568	}
		1569
		1570	void
		1571	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1572	PPCODE:
		1573	{
		1574	int fd = s_fileno_croak (fh, 0);
		1575	dREQ;
		1576
		1577	req->type = EIO_CUSTOM;
		1578	req->sv1 = newSVsv (fh);
		1579	req->int1 = fd;
		1580
		1581	req->feed = fiemap;
		1582	#if HAVE_FIEMAP
		1583	/* keep our fingers crossed that the next two types are 64 bit */
		1584	req->offs = start;
		1585	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1586	req->int2 = flags;
		1587	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1588	#endif
		1589
		1590	REQ_SEND;
1300	}	1591	}
1301		1592
1302	void	1593	void
1303	aio_busy (double delay, SV *callback=&PL_sv_undef)	1594	aio_busy (double delay, SV *callback=&PL_sv_undef)
1304	PPCODE:	1595	PPCODE:
…		…
1428	CODE:	1719	CODE:
1429	RETVAL = posix_fadvise (fh, offset, length, advice);	1720	RETVAL = posix_fadvise (fh, offset, length, advice);
1430	OUTPUT:	1721	OUTPUT:
1431	RETVAL	1722	RETVAL
1432		1723
1433	ssize_t	1724	IV
1434	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1725	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1435	CODE:	1726	CODE:
1436	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1727	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1437	OUTPUT:	1728	OUTPUT:
1438	RETVAL	1729	RETVAL
1439		1730
1440	void	1731	void
1441	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1732	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1442	PPCODE:	1733	PPCODE:
1443	sv_unmagic (scalar, MMAP_MAGIC);	1734	sv_unmagic (scalar, MMAP_MAGIC);
1444	{	1735	{
1445	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1736	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1446	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1737	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
…		…
1479	ALIAS:	1770	ALIAS:
1480	mprotect = 1	1771	mprotect = 1
1481	CODE:	1772	CODE:
1482	{	1773	{
1483	STRLEN svlen;	1774	STRLEN svlen;
1484	void *addr = SvPVbyte (scalar, svlen);	1775	void *addr = SvPVbyte (scalar, svlen);
1485	size_t len = SvUV (length);	1776	size_t len = SvUV (length);
1486		1777
1487	if (offset < 0)	1778	if (offset < 0)
1488	offset += svlen;	1779	offset += svlen;
1489		1780
…		…
1508	int	1799	int
1509	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	1800	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1510	CODE:	1801	CODE:
1511	{	1802	{
1512	STRLEN svlen;	1803	STRLEN svlen;
1513	void *addr = SvPVbyte (scalar, svlen);	1804	void *addr = SvPVbyte (scalar, svlen);
1514	size_t len = SvUV (length);	1805	size_t len = SvUV (length);
1515		1806
1516	if (offset < 0)	1807	if (offset < 0)
1517	offset += svlen;	1808	offset += svlen;
1518		1809
…		…
1522	if (!SvOK (length) || len + offset > svlen)	1813	if (!SvOK (length) || len + offset > svlen)
1523	len = svlen - offset;	1814	len = svlen - offset;
1524		1815
1525	addr = (void *)(((intptr_t)addr) + offset);	1816	addr = (void *)(((intptr_t)addr) + offset);
1526	eio_page_align (&addr, &len);	1817	eio_page_align (&addr, &len);
1527	#if _POSIX_MEMLOCK	1818	#if _POSIX_MEMLOCK_RANGE
1528	RETVAL = munlock (addr, len);	1819	RETVAL = munlock (addr, len);
1529	#else	1820	#else
1530	RETVAL = ((errno = ENOSYS), -1);	1821	RETVAL = EIO_ENOSYS ();
1531	#endif	1822	#endif
1532	}	1823	}
1533	OUTPUT:	1824	OUTPUT:
1534	RETVAL	1825	RETVAL
1535		1826
…		…
1537	munlockall ()	1828	munlockall ()
1538	CODE:	1829	CODE:
1539	#if _POSIX_MEMLOCK	1830	#if _POSIX_MEMLOCK
1540	munlockall ();	1831	munlockall ();
1541	#else	1832	#else
1542	RETVAL = -1;	1833	RETVAL = EIO_ENOSYS ();
1543	errno = ENOSYS;
1544	#endif	1834	#endif
1545	OUTPUT:	1835	OUTPUT:
		1836	RETVAL
		1837
		1838	int
		1839	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1840	CODE:
		1841	{
		1842	#if HAVE_LINUX_SPLICE
		1843	loff_t off_in_, off_out_;
		1844	RETVAL = splice (
		1845	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1846	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1847	length, flags
		1848	);
		1849	#else
		1850	RETVAL = EIO_ENOSYS ();
		1851	#endif
		1852	}
		1853	OUTPUT:
		1854	RETVAL
		1855
		1856	int
		1857	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1858	CODE:
		1859	#if HAVE_LINUX_SPLICE
		1860	RETVAL = tee (rfh, wfh, length, flags);
		1861	#else
		1862	RETVAL = EIO_ENOSYS ();
		1863	#endif
		1864	OUTPUT:
1546	RETVAL	1865	RETVAL
1547		1866
1548	void _on_next_submit (SV *cb)	1867	void _on_next_submit (SV *cb)
1549	CODE:	1868	CODE:
1550	SvREFCNT_dec (on_next_submit);	1869	SvREFCNT_dec (on_next_submit);
1551	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1870	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1552		1871
1553	PROTOTYPES: DISABLE	1872	PROTOTYPES: DISABLE
1554		1873
		1874	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1875
		1876	BOOT:
		1877	{
		1878	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1879	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1880	}
		1881
		1882	void
		1883	DESTROY (SV *self)
		1884	CODE:
		1885	{
		1886	aio_wd wd = SvAIO_WD (self);
		1887	#if HAVE_AT
		1888	{
		1889	SV *callback = &PL_sv_undef;
		1890	dREQ; /* clobbers next_pri :/ */
		1891	next_pri = req->pri; /* restore next_pri */
		1892	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1893	req->type = EIO_WD_CLOSE;
		1894	req->wd = wd;
		1895	REQ_SEND;
		1896	}
		1897	#else
		1898	eio_wd_close_sync (wd);
		1899	#endif
		1900	}
		1901
1555	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1902	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1556		1903
1557	void	1904	void
1558	cancel (aio_req_ornot req)	1905	cancel (aio_req_ornot req)
1559	CODE:	1906	CODE:

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