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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.185 by root, Thu Jul 7 22:36:18 2011 UTC vs.
Revision 1.229 by root, Fri Apr 11 05:19:40 2014 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_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22	# include <sys/mman.h>	21	# include <sys/mman.h>
23	#endif	22	#endif
24		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. on't complain if this fails for you.
		27	*/
		28	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		29	# include <linux/fs.h>
		30	# ifdef FS_IOC_FIEMAP
		31	# include <linux/types.h>
		32	# include <linux/fiemap.h>
		33	# define HAVE_FIEMAP 1
		34	# endif
		35	#endif
		36
25	/* perl namespace pollution */	37	/* perl namespace pollution */
26	#undef VERSION	38	#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		39
77	/* perl stupidly overrides readdir and maybe others */	40	/* perl stupidly overrides readdir and maybe others */
78	/* with thread-unsafe versions, imagine that :( */	41	/* with thread-unsafe versions, imagine that :( */
79	#undef readdir	42	#undef readdir
80	#undef opendir	43	#undef opendir
81	#undef closedir	44	#undef closedir
82		45
		46	#ifdef _WIN32
		47
		48	// perl overrides all those nice libc functions
		49
		50	#undef malloc
		51	#undef free
		52	#undef open
		53	#undef read
		54	#undef write
		55	#undef send
		56	#undef recv
		57	#undef stat
		58	#undef lstat
		59	#undef fstat
		60	#undef truncate
		61	#undef ftruncate
		62	#undef open
		63	#undef link
		64	#undef close
		65	#undef unlink
		66	#undef mkdir
		67	#undef rmdir
		68	#undef rename
		69	#undef lseek
		70	#undef opendir
		71	#undef readdir
		72	#undef closedir
		73	#undef chmod
		74	#undef fchmod
		75	#undef dup
		76	#undef dup2
		77	#undef abort
		78	#undef pipe
		79
		80	#define EIO_STRUCT_STAT struct _stati64
83	#define EIO_STRUCT_STAT Stat_t	81	#define EIO_STRUCT_STATI64
84		82
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	83	#else
91	# define VAL64 NV	84
92	# define SvVAL64 SvNV	85	#include <sys/time.h>
93	# define newSVval64 newSVnv	86	#include <sys/select.h>
		87	#include <unistd.h>
		88	#include <utime.h>
		89	#include <signal.h>
		90
		91	#define EIO_STRUCT_STAT Stat_t
		92
94	#endif	93	#endif
95		94
96	/*****************************************************************************/	95	/*****************************************************************************/
97		96
98	#if __GNUC__ >= 3	97	#if __GNUC__ >= 3
…		…
108		107
109	typedef SV SV8; /* byte-sv, used for argument-checking */	108	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	109	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	110	typedef int aio_wfd; /* write file descriptor */
112		111
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	112	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		113
115	#define EIO_REQ_MEMBERS \	114	#define EIO_REQ_MEMBERS \
116	SV *callback; \	115	SV *callback; \
117	SV *sv1, *sv2; \	116	SV *sv1, *sv2; \
		117	SV *sv3, *sv4; \
118	STRLEN stroffset; \	118	STRLEN stroffset; \
119	SV *self;	119	SV *self;
120		120
121	#define EIO_NO_WRAPPERS 1	121	#define EIO_NO_WRAPPERS 1
122		122
123	#include "libeio/config.h"	123	#include "libeio/config.h"
124	#include "libeio/eio.h"	124	#include "libeio/eio.h"
125		125
126	/* Linux/others */	126	static int req_invoke (eio_req *req);
127	#ifndef O_ASYNC	127	#define EIO_FINISH(req) req_invoke (req)
128	# define O_ASYNC 0	128	static void req_destroy (eio_req *grp);
129	#endif	129	#define EIO_DESTROY(req) req_destroy (req)
130	#ifndef O_DIRECT
131	# define O_DIRECT 0
132	#endif
133	#ifndef O_NOATIME
134	# define O_NOATIME 0
135	#endif
136		130
137	/* POSIX */	131	#include "libeio/eio.c"
138	#ifndef O_CLOEXEC
139	# define O_CLOEXEC 0
140	#endif
141	#ifndef O_NOFOLLOW
142	# define O_NOFOLLOW 0
143	#endif
144	#ifndef O_NOCTTY
145	# define O_NOCTTY 0
146	#endif
147	#ifndef O_NONBLOCK
148	# define O_NONBLOCK 0
149	#endif
150	#ifndef O_EXEC
151	# define O_EXEC 0
152	#endif
153	#ifndef O_SEARCH
154	# define O_SEARCH 0
155	#endif
156	#ifndef O_DIRECTORY
157	# define O_DIRECTORY 0
158	#endif
159	#ifndef O_DSYNC
160	# define O_DSYNC 0
161	#endif
162	#ifndef O_RSYNC
163	# define O_RSYNC 0
164	#endif
165	#ifndef O_SYNC
166	# define O_SYNC 0
167	#endif
168	#ifndef O_TTY_INIT
169	# define O_TTY_INIT 0
170	#endif
171
172	#ifndef POSIX_FADV_NORMAL
173	# define POSIX_FADV_NORMAL 0
174	#endif
175	#ifndef POSIX_FADV_SEQUENTIAL
176	# define POSIX_FADV_SEQUENTIAL 0
177	#endif
178	#ifndef POSIX_FADV_RANDOM
179	# define POSIX_FADV_RANDOM 0
180	#endif
181	#ifndef POSIX_FADV_NOREUSE
182	# define POSIX_FADV_NOREUSE 0
183	#endif
184	#ifndef POSIX_FADV_WILLNEED
185	# define POSIX_FADV_WILLNEED 0
186	#endif
187	#ifndef POSIX_FADV_DONTNEED
188	# define POSIX_FADV_DONTNEED 0
189	#endif
190		132
191	#if !HAVE_POSIX_FADVISE	133	#if !HAVE_POSIX_FADVISE
192	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	134	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
193	#endif	135	#endif
194		136
195	#ifndef POSIX_MADV_NORMAL
196	# define POSIX_MADV_NORMAL 0
197	#endif
198	#ifndef POSIX_MADV_SEQUENTIAL
199	# define POSIX_MADV_SEQUENTIAL 0
200	#endif
201	#ifndef POSIX_MADV_RANDOM
202	# define POSIX_MADV_RANDOM 0
203	#endif
204	#ifndef POSIX_MADV_WILLNEED
205	# define POSIX_MADV_WILLNEED 0
206	#endif
207	#ifndef POSIX_MADV_DONTNEED
208	# define POSIX_MADV_DONTNEED 0
209	#endif
210
211	#if !HAVE_POSIX_MADVISE	137	#if !HAVE_POSIX_MADVISE
212	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	138	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
213	#endif
214
215	#ifndef PROT_NONE
216	# define PROT_NONE 0
217	#endif
218	#ifndef PROT_READ
219	# define PROT_READ 0
220	#endif
221	#ifndef PROT_WRITE
222	# define PROT_READ 0
223	#endif
224	#ifndef PROT_EXEC
225	# define PROT_EXEC 0
226	#endif
227
228	#ifndef ST_NODEV
229	# define ST_NODEV 0
230	#endif
231	#ifndef ST_NOEXEC
232	# define ST_NOEXEC 0
233	#endif
234	#ifndef ST_SYNCHRONOUS
235	# define ST_SYNCHRONOUS 0
236	#endif
237	#ifndef ST_MANDLOCK
238	# define ST_MANDLOCK 0
239	#endif
240	#ifndef ST_WRITE
241	# define ST_WRITE 0
242	#endif
243	#ifndef ST_APPEND
244	# define ST_APPEND 0
245	#endif
246	#ifndef ST_IMMUTABLE
247	# define ST_IMMUTABLE 0
248	#endif
249	#ifndef ST_NOATIME
250	# define ST_NOATIME 0
251	#endif
252	#ifndef ST_NODIRATIME
253	# define ST_NODIRATIME 0
254	#endif
255	#ifndef ST_RELATIME
256	# define ST_RELATIME 0
257	#endif
258
259	#ifndef S_IFIFO
260	# define S_IFIFO 0
261	#endif
262	#ifndef S_IFCHR
263	# define S_IFCHR 0
264	#endif
265	#ifndef S_IFBLK
266	# define S_IFBLK 0
267	#endif
268	#ifndef S_IFLNK
269	# define S_IFLNK 0
270	#endif
271	#ifndef S_IFREG
272	# define S_IFREG 0
273	#endif
274	#ifndef S_IFDIR
275	# define S_IFDIR 0
276	#endif
277	#ifndef S_IFWHT
278	# define S_IFWHT 0
279	#endif
280	#ifndef S_IFSOCK
281	# define S_IFSOCK 0
282	#endif	139	#endif
283		140
284	#ifndef MAP_ANONYMOUS	141	#ifndef MAP_ANONYMOUS
285	# ifdef MAP_ANON	142	# ifdef MAP_ANON
286	# define MAP_ANONYMOUS MAP_ANON	143	# define MAP_ANONYMOUS MAP_ANON
287	# else	144	# else
288	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	145	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
289	# endif	146	# endif
290	#endif	147	#endif
291	#ifndef MAP_HUGETLB	148
292	# define MAP_HUGETLB 0	149	/* defines all sorts of constants to 0 unless they are already defined */
293	#endif	150	#include "def0.h"
294	#ifndef MAP_LOCKED
295	# define MAP_LOCKED 0
296	#endif
297	#ifndef MAP_NORESERVE
298	# define MAP_NORESERVE 0
299	#endif
300	#ifndef MAP_POPULATE
301	# define MAP_POPULATE 0
302	#endif
303	#ifndef MAP_NONBLOCK
304	# define MAP_NONBLOCK 0
305	#endif
306		151
307	#ifndef makedev	152	#ifndef makedev
308	# define makedev(maj,min) (((maj) << 8) | (min))	153	# define makedev(maj,min) (((maj) << 8) | (min))
309	#endif	154	#endif
310	#ifndef major	155	#ifndef major
…		…
312	#endif	157	#endif
313	#ifndef minor	158	#ifndef minor
314	# define minor(dev) ((dev) & 0xff)	159	# define minor(dev) ((dev) & 0xff)
315	#endif	160	#endif
316		161
317	#ifndef PAGESIZE	162	#if PAGESIZE <= 0
318	# define PAGESIZE sysconf (_SC_PAGESIZE)	163	# define PAGESIZE sysconf (_SC_PAGESIZE)
319	#endif	164	#endif
320		165
321	static int req_invoke (eio_req *req);	166	/*****************************************************************************/
322	#define EIO_FINISH(req) req_invoke (req)	167
323	static void req_destroy (eio_req *grp);	168	static void
324	#define EIO_DESTROY(req) req_destroy (req)	169	fiemap (eio_req *req)
		170	{
		171	req->result = -1;
		172
		173	#if HAVE_FIEMAP
		174	/* assume some c99 */
		175	struct fiemap *fiemap = 0;
		176	size_t end_offset;
		177	int count = req->int3;
		178
		179	req->flags |= EIO_FLAG_PTR1_FREE;
		180
		181	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		182	/* increase in 3.5kb steps */
		183	if (count < 0)
		184	count = 8;
		185
		186	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		187	errno = ENOMEM;
		188	if (!fiemap)
		189	return;
		190
		191	req->ptr1 = fiemap;
		192
		193	fiemap->fm_start = req->offs;
		194	fiemap->fm_length = req->size;
		195	fiemap->fm_flags = req->int2;
		196	fiemap->fm_extent_count = count;
		197
		198	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		199	return;
		200
		201	if (req->int3 >= 0 /* not autosizing */
		202	|| !fiemap->fm_mapped_extents /* no more extents */
		203	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		204	goto done;
		205
		206	/* else we have to loop -
		207	* it would be tempting (actually I tried that first) to just query the
		208	* number of extents needed, but linux often feels like not returning all
		209	* extents, without telling us it left any out. this complicates
		210	* this quite a bit.
		211	*/
		212
		213	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		214
		215	for (;;)
		216	{
		217	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		218	char scratch[3072];
		219	struct fiemap *incmap = (struct fiemap *)scratch;
		220
		221	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		222	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		223	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		224	incmap->fm_flags = fiemap->fm_flags;
		225	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		226
		227	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		228	return;
		229
		230	if (!incmap->fm_mapped_extents)
		231	goto done;
		232
		233	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		234	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		235	errno = ENOMEM;
		236	if (!fiemap)
		237	return;
		238
		239	req->ptr1 = fiemap;
		240
		241	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		242	{
		243	struct fiemap_extent *e = incmap->fm_extents + count;
		244
		245	if (e->fe_logical + e->fe_length >= end_offset)
		246	goto done;
		247
		248	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		249
		250	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		251	goto done;
		252
		253	}
		254	}
		255
		256	done:
		257	req->result = 0;
		258
		259	#else
		260	errno = ENOSYS;
		261	#endif
		262	}
		263
		264	/*****************************************************************************/
325		265
326	enum {	266	enum {
327	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	267	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
328	};	268	};
329		269
330	#include "libeio/eio.c"
331
332	typedef eio_req *aio_req;	270	typedef eio_req *aio_req;
333	typedef eio_req *aio_req_ornot;	271	typedef eio_req *aio_req_ornot;
		272	typedef eio_wd aio_wd;
334		273
335	static SV *on_next_submit;	274	static SV *on_next_submit;
336	static int next_pri = EIO_PRI_DEFAULT;	275	static int next_pri = EIO_PRI_DEFAULT;
337	static int max_outstanding;	276	static int max_outstanding;
338		277
339	static s_epipe respipe;	278	static s_epipe respipe;
340		279
341	static void req_destroy (aio_req req);	280	static void req_destroy (aio_req req);
342	static void req_cancel (aio_req req);	281	static void req_cancel (aio_req req);
343		282
344	static void want_poll (void)	283	static void
		284	want_poll (void)
345	{	285	{
346	/* write a dummy byte to the pipe so fh becomes ready */	286	/* write a dummy byte to the pipe so fh becomes ready */
347	s_epipe_signal (&respipe);	287	s_epipe_signal (&respipe);
348	}	288	}
349		289
350	static void done_poll (void)	290	static void
		291	done_poll (void)
351	{	292	{
352	/* read any signals sent by the worker threads */	293	/* read any signals sent by the worker threads */
353	s_epipe_drain (&respipe);	294	s_epipe_drain (&respipe);
354	}	295	}
355		296
356	/* must be called at most once */	297	/* must be called at most once */
		298	static SV *
357	static SV *req_sv (aio_req req, HV *stash)	299	req_sv (aio_req req, HV *stash)
358	{	300	{
359	if (!req->self)	301	if (!req->self)
360	{	302	{
361	req->self = (SV *)newHV ();	303	req->self = (SV *)newHV ();
362	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	304	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
363	}	305	}
364		306
365	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	307	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
366	}	308	}
367		309
368	static aio_req SvAIO_REQ (SV *sv)	310	static SV *
		311	newSVaio_wd (aio_wd wd)
		312	{
		313	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		314	}
		315
		316	static aio_req
		317	SvAIO_REQ (SV *sv)
369	{	318	{
370	MAGIC *mg;	319	MAGIC *mg;
371		320
372	if (!SvROK (sv)	321	if (!SvROK (sv)
		322	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
373	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	323	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
374	&& SvSTASH (SvRV (sv)) != aio_req_stash	324	&& SvSTASH (SvRV (sv)) != aio_req_stash
375	&& !sv_derived_from (sv, "IO::AIO::REQ")))	325	&& !sv_derived_from (sv, "IO::AIO::REQ")))
376	croak ("object of class IO::AIO::REQ expected");	326	croak ("object of class IO::AIO::REQ expected");
377		327
378	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	328	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
379		329
380	return mg ? (aio_req)mg->mg_ptr : 0;	330	return mg ? (aio_req)mg->mg_ptr : 0;
381	}	331	}
382		332
		333	static aio_wd
		334	SvAIO_WD (SV *sv)
		335	{
		336	if (!SvROK (sv)
		337	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		338	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		339	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		340
		341	return (aio_wd)(long)SvIVX (SvRV (sv));
		342	}
		343
		344	static void
383	static void aio_grp_feed (aio_req grp)	345	aio_grp_feed (aio_req grp)
384	{	346	{
385	if (grp->sv2 && SvOK (grp->sv2))	347	if (grp->sv2 && SvOK (grp->sv2))
386	{	348	{
387	dSP;	349	dSP;
388		350
…		…
396	FREETMPS;	358	FREETMPS;
397	LEAVE;	359	LEAVE;
398	}	360	}
399	}	361	}
400		362
		363	static void
401	static void req_submit (eio_req *req)	364	req_submit (eio_req *req)
402	{	365	{
403	eio_submit (req);	366	eio_submit (req);
404		367
405	if (expect_false (on_next_submit))	368	if (expect_false (on_next_submit))
406	{	369	{
…		…
413	PUTBACK;	376	PUTBACK;
414	call_sv (cb, G_DISCARD | G_EVAL);	377	call_sv (cb, G_DISCARD | G_EVAL);
415	}	378	}
416	}	379	}
417		380
		381	static int
418	static int req_invoke (eio_req *req)	382	req_invoke (eio_req *req)
419	{	383	{
420	if (req->flags & FLAG_SV2_RO_OFF)	384	if (req->flags & FLAG_SV2_RO_OFF)
421	SvREADONLY_off (req->sv2);	385	SvREADONLY_off (req->sv2);
422		386
423	if (!EIO_CANCELLED (req) && req->callback)	387	if (!EIO_CANCELLED (req) && req->callback)
…		…
444	SvREADONLY_on (sv_result);	408	SvREADONLY_on (sv_result);
445	}	409	}
446		410
447	switch (req->type)	411	switch (req->type)
448	{	412	{
		413	case EIO_WD_OPEN:
		414	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		415	break;
		416
449	case EIO_READDIR:	417	case EIO_READDIR:
450	{	418	{
451	SV *rv = &PL_sv_undef;	419	SV *rv = &PL_sv_undef;
452		420
453	if (req->result >= 0)	421	if (req->result >= 0)
…		…
541	case EIO_STATVFS:	509	case EIO_STATVFS:
542	case EIO_FSTATVFS:	510	case EIO_FSTATVFS:
543	{	511	{
544	SV *rv = &PL_sv_undef;	512	SV *rv = &PL_sv_undef;
545		513
		514	#ifndef _WIN32
546	if (req->result >= 0)	515	if (req->result >= 0)
547	{	516	{
548	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	517	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
549	HV *hv = newHV ();	518	HV *hv = newHV ();
		519	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		520	* chooses to make it a struct.
		521	*/
		522	unsigned long fsid = 0;
		523	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
550		524
551	rv = sv_2mortal (newRV_noinc ((SV *)hv));	525	rv = sv_2mortal (newRV_noinc ((SV *)hv));
552		526
553	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	527	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
554	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	528	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
556	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	530	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
557	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	531	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
558	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	532	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
559	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	533	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
560	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	534	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
561	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	535	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
562	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	536	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
563	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	537	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
564	}	538	}
		539	#endif
565		540
566	PUSHs (rv);	541	PUSHs (rv);
567	}	542	}
568		543
569	break;	544	break;
…		…
593	break;	568	break;
594		569
595	case EIO_STAT:	570	case EIO_STAT:
596	case EIO_LSTAT:	571	case EIO_LSTAT:
597	case EIO_FSTAT:	572	case EIO_FSTAT:
598	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	573	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		574
599	PL_laststatval = req->result;	575	if (!(PL_laststatval = req->result))
		576	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
600	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	577	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		578
601	PUSHs (sv_result);	579	PUSHs (sv_result);
		580	break;
		581
		582	case EIO_SEEK:
		583	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
602	break;	584	break;
603		585
604	case EIO_READ:	586	case EIO_READ:
605	{	587	{
606	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));
…		…
609	SvSETMAGIC (req->sv2);	591	SvSETMAGIC (req->sv2);
610	PUSHs (sv_result);	592	PUSHs (sv_result);
611	}	593	}
612	break;	594	break;
613		595
		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
614	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	636	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
615	if (req->result > 0)	637	if (req->result > 0)
616	SvIV_set (sv_result, 0);	638	SvIV_set (sv_result, 0);
617	/* FALLTHROUGH */	639	/* FALLTHROUGH */
618		640
…		…
639	}	661	}
640		662
641	return !!SvTRUE (ERRSV);	663	return !!SvTRUE (ERRSV);
642	}	664	}
643		665
		666	static void
644	static void req_destroy (aio_req req)	667	req_destroy (aio_req req)
645	{	668	{
646	if (req->self)	669	if (req->self)
647	{	670	{
648	sv_unmagic (req->self, PERL_MAGIC_ext);	671	sv_unmagic (req->self, PERL_MAGIC_ext);
649	SvREFCNT_dec (req->self);	672	SvREFCNT_dec (req->self);
650	}	673	}
651		674
652	SvREFCNT_dec (req->sv1);	675	SvREFCNT_dec (req->sv1);
653	SvREFCNT_dec (req->sv2);	676	SvREFCNT_dec (req->sv2);
		677	SvREFCNT_dec (req->sv3);
		678	SvREFCNT_dec (req->sv4);
654	SvREFCNT_dec (req->callback);	679	SvREFCNT_dec (req->callback);
655		680
656	Safefree (req);	681	free (req);
657	}	682	}
658		683
		684	static void
659	static void req_cancel_subs (aio_req grp)	685	req_cancel_subs (aio_req grp)
660	{	686	{
661	aio_req sub;
662
663	if (grp->type != EIO_GROUP)	687	if (grp->type != EIO_GROUP)
664	return;	688	return;
665		689
666	SvREFCNT_dec (grp->sv2);	690	SvREFCNT_dec (grp->sv2);
667	grp->sv2 = 0;	691	grp->sv2 = 0;
668		692
669	eio_grp_cancel (grp);	693	eio_grp_cancel (grp);
670	}	694	}
671		695
		696	static void ecb_cold
672	static void create_respipe (void)	697	create_respipe (void)
673	{	698	{
674	if (s_epipe_renew (&respipe))	699	if (s_epipe_renew (&respipe))
675	croak ("IO::AIO: unable to initialize result pipe");	700	croak ("IO::AIO: unable to initialize result pipe");
676	}	701	}
677		702
678	static void poll_wait (void)	703	static void
		704	poll_wait (void)
679	{	705	{
680	while (eio_nreqs ())	706	while (eio_nreqs ())
681	{	707	{
682	int size;	708	int size;
683		709
…		…
692		718
693	s_epipe_wait (&respipe);	719	s_epipe_wait (&respipe);
694	}	720	}
695	}	721	}
696		722
697	static int poll_cb (void)	723	static int
		724	poll_cb (void)
698	{	725	{
699	for (;;)	726	for (;;)
700	{	727	{
701	int res = eio_poll ();	728	int res = eio_poll ();
702		729
…		…
708		735
709	poll_wait ();	736	poll_wait ();
710	}	737	}
711	}	738	}
712		739
713	static void atfork_child (void)	740	static void ecb_cold
		741	reinit (void)
714	{	742	{
715	create_respipe ();	743	create_respipe ();
		744
		745	if (eio_init (want_poll, done_poll) < 0)
		746	croak ("IO::AIO: unable to initialise eio library");
716	}	747	}
717		748
718	/*****************************************************************************/	749	/*****************************************************************************/
719		750
720	#if !_POSIX_MAPPED_FILES	751	#if !_POSIX_MAPPED_FILES
721	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	752	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
722	# define munmap(addr,length) (errno = ENOSYS, -1)	753	# define munmap(addr,length) EIO_ENOSYS ()
723	#endif	754	#endif
724		755
725	#if !_POSIX_MEMORY_PROTECTION	756	#if !_POSIX_MEMORY_PROTECTION
726	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)	757	# define mprotect(addr,len,prot) EIO_ENOSYS ()
727	# define PROT_NONE 0	758	# define PROT_NONE 0
728	# define PROT_WRITE 0	759	# define PROT_WRITE 0
729	# define MAP_PRIVATE 0	760	# define MAP_PRIVATE 0
730	# define MAP_SHARED 0	761	# define MAP_SHARED 0
731	# define MAP_FIXED 0	762	# define MAP_FIXED 0
732	#endif	763	#endif
733		764
734	#define MMAP_MAGIC PERL_MAGIC_ext	765	#define MMAP_MAGIC PERL_MAGIC_ext
735		766
		767	static int ecb_cold
736	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)	768	mmap_free (pTHX_ SV *sv, MAGIC *mg)
737	{	769	{
738	int old_errno = errno;	770	int old_errno = errno;
739	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	771	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
740	errno = old_errno;	772	errno = old_errno;
741		773
…		…
757	0, 0, 0, 0, mmap_free	789	0, 0, 0, 0, mmap_free
758	};	790	};
759		791
760	/*****************************************************************************/	792	/*****************************************************************************/
761		793
		794	static SV *
762	static SV * get_cb (SV *cb_sv)	795	get_cb (SV *cb_sv)
763	{	796	{
764	SvGETMAGIC (cb_sv);	797	SvGETMAGIC (cb_sv);
765	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	798	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
766	}	799	}
767		800
		801	static aio_req ecb_noinline
		802	dreq (SV *callback)
		803	{
		804	SV *cb_cv;
		805	aio_req req;
		806	int req_pri = next_pri;
		807	next_pri = EIO_PRI_DEFAULT;
		808
		809	cb_cv = get_cb (callback);
		810
		811	req = calloc (sizeof (*req), 1);
		812	if (!req)
		813	croak ("out of memory during eio_req allocation");
		814
		815	req->callback = SvREFCNT_inc (cb_cv);
		816	req->pri = req_pri;
		817
		818	return req;
		819	}
		820
768	#define dREQ \	821	#define dREQ \
769	SV *cb_cv; \	822	aio_req req = dreq (callback); \
770	aio_req req; \
771	int req_pri = next_pri; \
772	next_pri = EIO_PRI_DEFAULT; \
773	\
774	cb_cv = get_cb (callback); \
775	\
776	Newz (0, req, 1, eio_req); \
777	if (!req) \
778	croak ("out of memory during eio_req allocation"); \
779	\
780	req->callback = SvREFCNT_inc (cb_cv); \
781	req->pri = req_pri
782		823
783	#define REQ_SEND \	824	#define REQ_SEND \
784	PUTBACK; \	825	PUTBACK; \
785	req_submit (req); \	826	req_submit (req); \
786	SPAGAIN; \	827	SPAGAIN; \
787	\	828	\
788	if (GIMME_V != G_VOID) \	829	if (GIMME_V != G_VOID) \
789	XPUSHs (req_sv (req, aio_req_stash));	830	XPUSHs (req_sv (req, aio_req_stash));
790		831
		832	ecb_inline void
		833	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		834	{
		835	if (expect_false (SvROK (path)))
		836	{
		837	SV *rv = SvRV (path);
		838	SV *wdob;
		839
		840	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		841	{
		842	path = AvARRAY (rv)[1];
		843	wdob = AvARRAY (rv)[0];
		844
		845	if (SvOK (wdob))
		846	{
		847	*wd = SvAIO_WD (wdob);
		848	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		849	}
		850	else
		851	*wd = EIO_INVALID_WD;
		852	}
		853	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		854	{
		855	*wd = (aio_wd)(long)SvIVX (rv);
		856	*wdsv = SvREFCNT_inc_NN (rv);
		857	*ptr = ".";
		858	return; /* path set to "." */
		859	}
		860	else
		861	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		862	}
		863
		864	*pathsv = newSVsv (path);
		865	*ptr = SvPVbyte_nolen (*pathsv);
		866	}
		867
		868	static void ecb_noinline
		869	req_set_path1 (aio_req req, SV *path)
		870	{
		871	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		872	}
		873
		874	static void ecb_noinline
		875	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		876	{
		877	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		878
		879	switch (SvTYPE (rv))
		880	{
		881	case SVt_PVIO:
		882	case SVt_PVLV:
		883	case SVt_PVGV:
		884	req->type = type_fh;
		885	req->sv1 = newSVsv (fh_or_path);
		886	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		887	break;
		888
		889	default:
		890	req->type = type_path;
		891	req_set_path1 (req, fh_or_path);
		892	break;
		893	}
		894	}
		895
		896	XS(boot_IO__AIO) ecb_cold;
		897
791	MODULE = IO::AIO PACKAGE = IO::AIO	898	MODULE = IO::AIO PACKAGE = IO::AIO
792		899
793	PROTOTYPES: ENABLE	900	PROTOTYPES: ENABLE
794		901
795	BOOT:	902	BOOT:
…		…
799	IV iv;	906	IV iv;
800	} *civ, const_iv[] = {	907	} *civ, const_iv[] = {
801	# define const_niv(name, value) { # name, (IV) value },	908	# define const_niv(name, value) { # name, (IV) value },
802	# define const_iv(name) { # name, (IV) name },	909	# define const_iv(name) { # name, (IV) name },
803	# define const_eio(name) { # name, (IV) EIO_ ## name },	910	# define const_eio(name) { # name, (IV) EIO_ ## name },
		911
		912	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		913
		914	const_iv (ENOSYS)
804	const_iv (EXDEV)	915	const_iv (EXDEV)
805	const_iv (ENOSYS)	916	const_iv (EBADR)
		917
806	const_iv (O_RDONLY)	918	const_iv (O_RDONLY)
807	const_iv (O_WRONLY)	919	const_iv (O_WRONLY)
808	const_iv (O_RDWR)	920	const_iv (O_RDWR)
809	const_iv (O_CREAT)	921	const_iv (O_CREAT)
810	const_iv (O_TRUNC)	922	const_iv (O_TRUNC)
…		…
878	const_iv (MAP_LOCKED)	990	const_iv (MAP_LOCKED)
879	const_iv (MAP_NORESERVE)	991	const_iv (MAP_NORESERVE)
880	const_iv (MAP_POPULATE)	992	const_iv (MAP_POPULATE)
881	const_iv (MAP_NONBLOCK)	993	const_iv (MAP_NONBLOCK)
882		994
		995	const_iv (FIEMAP_FLAG_SYNC)
		996	const_iv (FIEMAP_FLAG_XATTR)
		997	const_iv (FIEMAP_FLAGS_COMPAT)
		998	const_iv (FIEMAP_EXTENT_LAST)
		999	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1000	const_iv (FIEMAP_EXTENT_DELALLOC)
		1001	const_iv (FIEMAP_EXTENT_ENCODED)
		1002	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1003	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1004	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1005	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1006	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1007	const_iv (FIEMAP_EXTENT_MERGED)
		1008	const_iv (FIEMAP_EXTENT_SHARED)
		1009
		1010	const_iv (SPLICE_F_MOVE)
		1011	const_iv (SPLICE_F_NONBLOCK)
		1012	const_iv (SPLICE_F_MORE)
		1013	const_iv (SPLICE_F_GIFT)
		1014
		1015	const_iv (SEEK_DATA)
		1016	const_iv (SEEK_HOLE)
		1017
		1018	/* libeio constants */
		1019	const_eio (SEEK_SET)
		1020	const_eio (SEEK_CUR)
		1021	const_eio (SEEK_END)
		1022
883	const_eio (MCL_FUTURE)	1023	const_eio (MCL_FUTURE)
884	const_eio (MCL_CURRENT)	1024	const_eio (MCL_CURRENT)
885		1025
886	const_eio (MS_ASYNC)	1026	const_eio (MS_ASYNC)
887	const_eio (MS_INVALIDATE)	1027	const_eio (MS_INVALIDATE)
…		…
892	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1032	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
893	const_eio (SYNC_FILE_RANGE_WRITE)	1033	const_eio (SYNC_FILE_RANGE_WRITE)
894	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1034	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
895		1035
896	const_eio (FALLOC_FL_KEEP_SIZE)	1036	const_eio (FALLOC_FL_KEEP_SIZE)
		1037	const_eio (FALLOC_FL_PUNCH_HOLE)
897		1038
898	const_eio (READDIR_DENTS)	1039	const_eio (READDIR_DENTS)
899	const_eio (READDIR_DIRS_FIRST)	1040	const_eio (READDIR_DIRS_FIRST)
900	const_eio (READDIR_STAT_ORDER)	1041	const_eio (READDIR_STAT_ORDER)
901	const_eio (READDIR_FOUND_UNKNOWN)	1042	const_eio (READDIR_FOUND_UNKNOWN)
…		…
912	};	1053	};
913		1054
914	aio_stash = gv_stashpv ("IO::AIO" , 1);	1055	aio_stash = gv_stashpv ("IO::AIO" , 1);
915	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1056	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
916	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1057	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1058	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
917		1059
918	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1060	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
919	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1061	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
920		1062
921	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1063	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
922		1064
923	create_respipe ();	1065	reinit ();
924
925	if (eio_init (want_poll, done_poll) < 0)
926	croak ("IO::AIO: unable to initialise eio library");
927
928	/* atfork child called in fifo order, so before eio's handler */
929	X_THREAD_ATFORK (0, 0, atfork_child);
930	}	1066	}
		1067
		1068	void
		1069	reinit ()
		1070	PROTOTYPE:
931		1071
932	void	1072	void
933	max_poll_reqs (unsigned int nreqs)	1073	max_poll_reqs (unsigned int nreqs)
934	PROTOTYPE: $	1074	PROTOTYPE: $
935	CODE:	1075	CODE:
…		…
970	PROTOTYPE: $	1110	PROTOTYPE: $
971	CODE:	1111	CODE:
972	max_outstanding = maxreqs;	1112	max_outstanding = maxreqs;
973		1113
974	void	1114	void
		1115	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1116	PPCODE:
		1117	{
		1118	dREQ;
		1119
		1120	req->type = EIO_WD_OPEN;
		1121	req_set_path1 (req, pathname);
		1122
		1123	REQ_SEND;
		1124	}
		1125
		1126	void
975	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1127	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
976	PPCODE:	1128	PPCODE:
977	{	1129	{
978	dREQ;	1130	dREQ;
979		1131
980	req->type = EIO_OPEN;	1132	req->type = EIO_OPEN;
981	req->sv1 = newSVsv (pathname);	1133	req_set_path1 (req, pathname);
982	req->ptr1 = SvPVbyte_nolen (req->sv1);
983	req->int1 = flags;	1134	req->int1 = flags;
984	req->int2 = mode;	1135	req->int2 = mode;
985		1136
986	REQ_SEND;	1137	REQ_SEND;
987	}	1138	}
…		…
989	void	1140	void
990	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1141	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
991	ALIAS:	1142	ALIAS:
992	aio_fsync = EIO_FSYNC	1143	aio_fsync = EIO_FSYNC
993	aio_fdatasync = EIO_FDATASYNC	1144	aio_fdatasync = EIO_FDATASYNC
		1145	aio_syncfs = EIO_SYNCFS
994	PPCODE:	1146	PPCODE:
995	{	1147	{
996	int fd = s_fileno_croak (fh, 0);	1148	int fd = s_fileno_croak (fh, 0);
997	dREQ;	1149	dREQ;
998		1150
999	req->type = ix;	1151	req->type = ix;
1000	req->sv1 = newSVsv (fh);	1152	req->sv1 = newSVsv (fh);
1001	req->int1 = fd;	1153	req->int1 = fd;
1002		1154
1003	REQ_SEND (req);	1155	REQ_SEND;
1004	}	1156	}
1005		1157
1006	void	1158	void
1007	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1159	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
1008	PPCODE:	1160	PPCODE:
1009	{	1161	{
1010	int fd = s_fileno_croak (fh, 0);	1162	int fd = s_fileno_croak (fh, 0);
1011	dREQ;	1163	dREQ;
1012		1164
1013	req->type = EIO_SYNC_FILE_RANGE;	1165	req->type = EIO_SYNC_FILE_RANGE;
1014	req->sv1 = newSVsv (fh);	1166	req->sv1 = newSVsv (fh);
1015	req->int1 = fd;	1167	req->int1 = fd;
1016	req->offs = offset;	1168	req->offs = offset;
1017	req->size = nbytes;	1169	req->size = nbytes;
1018	req->int2 = flags;	1170	req->int2 = flags;
1019		1171
1020	REQ_SEND (req);	1172	REQ_SEND;
1021	}	1173	}
1022		1174
1023	void	1175	void
1024	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1176	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
1025	PPCODE:	1177	PPCODE:
1026	{	1178	{
1027	int fd = s_fileno_croak (fh, 0);	1179	int fd = s_fileno_croak (fh, 0);
1028	dREQ;	1180	dREQ;
1029		1181
1030	req->type = EIO_FALLOCATE;	1182	req->type = EIO_FALLOCATE;
1031	req->sv1 = newSVsv (fh);	1183	req->sv1 = newSVsv (fh);
1032	req->int1 = fd;	1184	req->int1 = fd;
1033	req->int2 = mode;	1185	req->int2 = mode;
1034	req->offs = offset;	1186	req->offs = offset;
1035	req->size = len;	1187	req->size = len;
1036		1188
1037	REQ_SEND (req);	1189	REQ_SEND;
1038	}	1190	}
1039		1191
1040	void	1192	void
1041	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1193	aio_close (SV *fh, SV *callback=&PL_sv_undef)
1042	PPCODE:	1194	PPCODE:
1043	{	1195	{
1044	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1196	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1045	int fd = s_fileno_croak (fh, 0);	1197	int fd = s_fileno_croak (fh, 0);
1046	dREQ;	1198	dREQ;
1047		1199
1048	if (close_pipe < 0)	1200	if (expect_false (close_fd < 0))
1049	{	1201	{
1050	int pipefd [2];	1202	int pipefd [2];
1051		1203
		1204	if (
		1205	#ifdef _WIN32
		1206	_pipe (pipefd, 1, _O_BINARY) < 0
		1207	#else
1052	if (pipe (pipefd) < 0	1208	pipe (pipefd) < 0
1053	|| close (pipefd [1]) < 0
1054	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1209	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1210	#endif
		1211	|| close (pipefd [1]) < 0
		1212	)
1055	abort (); /*D*/	1213	abort (); /*D*/
1056		1214
1057	close_pipe = pipefd [0];	1215	close_fd = pipefd [0];
1058	}	1216	}
1059		1217
1060	req->type = EIO_DUP2;	1218	req->type = EIO_DUP2;
1061	req->int1 = close_pipe;	1219	req->int1 = close_fd;
1062	req->sv2 = newSVsv (fh);	1220	req->sv2 = newSVsv (fh);
1063	req->int2 = fd;	1221	req->int2 = fd;
1064		1222
1065	REQ_SEND (req);	1223	REQ_SEND;
		1224	}
		1225
		1226	void
		1227	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1228	PPCODE:
		1229	{
		1230	int fd = s_fileno_croak (fh, 0);
		1231	dREQ;
		1232
		1233	req->type = EIO_SEEK;
		1234	req->sv1 = newSVsv (fh);
		1235	req->int1 = fd;
		1236	req->offs = SvVAL64 (offset);
		1237	req->int2 = whence;
		1238
		1239	REQ_SEND;
1066	}	1240	}
1067		1241
1068	void	1242	void
1069	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1243	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
1070	ALIAS:	1244	ALIAS:
…		…
1091	}	1265	}
1092	else	1266	else
1093	{	1267	{
1094	/* read: check type and grow scalar as necessary */	1268	/* read: check type and grow scalar as necessary */
1095	SvUPGRADE (data, SVt_PV);	1269	SvUPGRADE (data, SVt_PV);
		1270	if (SvLEN (data) >= SvCUR (data))
1096	svptr = SvGROW (data, len + dataoffset + 1);	1271	svptr = SvGROW (data, len + dataoffset + 1);
		1272	else if (SvCUR (data) < len + dataoffset)
		1273	croak ("length + dataoffset outside of scalar, and cannot grow");
1097	}	1274	}
1098		1275
1099	{	1276	{
1100	dREQ;	1277	dREQ;
1101		1278
…		…
1117	REQ_SEND;	1294	REQ_SEND;
1118	}	1295	}
1119	}	1296	}
1120		1297
1121	void	1298	void
1122	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1299	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1123	ALIAS:	1300	ALIAS:
1124	aio_readlink = EIO_READLINK	1301	aio_readlink = EIO_READLINK
1125	aio_realpath = EIO_REALPATH	1302	aio_realpath = EIO_REALPATH
1126	PPCODE:	1303	PPCODE:
1127	{	1304	{
1128	SV *data;
1129	dREQ;	1305	dREQ;
1130		1306
1131	req->type = ix;	1307	req->type = ix;
1132	req->sv1 = newSVsv (path);	1308	req_set_path1 (req, pathname);
1133	req->ptr1 = SvPVbyte_nolen (req->sv1);
1134		1309
1135	REQ_SEND;	1310	REQ_SEND;
1136	}	1311	}
1137		1312
1138	void	1313	void
1139	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1314	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
1140	PPCODE:	1315	PPCODE:
1141	{	1316	{
1142	int ifd = s_fileno_croak (in_fh , 0);	1317	int ifd = s_fileno_croak (in_fh , 0);
1143	int ofd = s_fileno_croak (out_fh, 1);	1318	int ofd = s_fileno_croak (out_fh, 1);
1144	dREQ;	1319	dREQ;
1145		1320
1146	req->type = EIO_SENDFILE;	1321	req->type = EIO_SENDFILE;
1147	req->sv1 = newSVsv (out_fh);	1322	req->sv1 = newSVsv (out_fh);
1148	req->int1 = ofd;	1323	req->int1 = ofd;
…		…
1156		1331
1157	void	1332	void
1158	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1333	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1159	PPCODE:	1334	PPCODE:
1160	{	1335	{
1161	int fd = s_fileno_croak (fh, 0);	1336	int fd = s_fileno_croak (fh, 0);
1162	dREQ;	1337	dREQ;
1163		1338
1164	req->type = EIO_READAHEAD;	1339	req->type = EIO_READAHEAD;
1165	req->sv1 = newSVsv (fh);	1340	req->sv1 = newSVsv (fh);
1166	req->int1 = fd;	1341	req->int1 = fd;
…		…
1178	aio_statvfs = EIO_STATVFS	1353	aio_statvfs = EIO_STATVFS
1179	PPCODE:	1354	PPCODE:
1180	{	1355	{
1181	dREQ;	1356	dREQ;
1182		1357
1183	req->sv1 = newSVsv (fh_or_path);	1358	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1184
1185	if (SvPOK (req->sv1))
1186	{
1187	req->type = ix;
1188	req->ptr1 = SvPVbyte_nolen (req->sv1);
1189	}
1190	else
1191	{
1192	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1193	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1194	}
1195		1359
1196	REQ_SEND;	1360	REQ_SEND;
1197	}	1361	}
1198		1362
1199	UV	1363	UV
…		…
1218	{	1382	{
1219	dREQ;	1383	dREQ;
1220		1384
1221	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1385	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1222	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1386	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1223	req->sv1 = newSVsv (fh_or_path);	1387	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1224
1225	if (SvPOK (req->sv1))
1226	{
1227	req->type = EIO_UTIME;
1228	req->ptr1 = SvPVbyte_nolen (req->sv1);
1229	}
1230	else
1231	{
1232	req->type = EIO_FUTIME;
1233	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1234	}
1235		1388
1236	REQ_SEND;	1389	REQ_SEND;
1237	}	1390	}
1238		1391
1239	void	1392	void
1240	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1393	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
1241	PPCODE:	1394	PPCODE:
1242	{	1395	{
1243	dREQ;	1396	dREQ;
1244		1397
1245	req->sv1 = newSVsv (fh_or_path);
1246	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1398	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1247		1399	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1248	if (SvPOK (req->sv1))
1249	{
1250	req->type = EIO_TRUNCATE;
1251	req->ptr1 = SvPVbyte_nolen (req->sv1);
1252	}
1253	else
1254	{
1255	req->type = EIO_FTRUNCATE;
1256	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1257	}
1258		1400
1259	REQ_SEND;	1401	REQ_SEND;
1260	}	1402	}
1261		1403
1262	void	1404	void
1263	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1405	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
1264	ALIAS:
1265	aio_chmod = EIO_CHMOD
1266	aio_mkdir = EIO_MKDIR
1267	PPCODE:	1406	PPCODE:
1268	{	1407	{
1269	dREQ;	1408	dREQ;
1270		1409
1271	req->int2 = mode;	1410	req->int2 = mode;
1272	req->sv1 = newSVsv (fh_or_path);	1411	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1273
1274	if (SvPOK (req->sv1))
1275	{
1276	req->type = ix;
1277	req->ptr1 = SvPVbyte_nolen (req->sv1);
1278	}
1279	else
1280	{
1281	req->type = EIO_FCHMOD;
1282	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1283	}
1284		1412
1285	REQ_SEND;	1413	REQ_SEND;
1286	}	1414	}
1287		1415
1288	void	1416	void
…		…
1291	{	1419	{
1292	dREQ;	1420	dREQ;
1293		1421
1294	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1422	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1295	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1423	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1296	req->sv1 = newSVsv (fh_or_path);	1424	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1297
1298	if (SvPOK (req->sv1))
1299	{
1300	req->type = EIO_CHOWN;
1301	req->ptr1 = SvPVbyte_nolen (req->sv1);
1302	}
1303	else
1304	{
1305	req->type = EIO_FCHOWN;
1306	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1307	}
1308		1425
1309	REQ_SEND;	1426	REQ_SEND;
1310	}	1427	}
1311		1428
1312	void	1429	void
…		…
1314	PPCODE:	1431	PPCODE:
1315	{	1432	{
1316	dREQ;	1433	dREQ;
1317		1434
1318	req->type = EIO_READDIR;	1435	req->type = EIO_READDIR;
1319	req->sv1 = newSVsv (pathname);
1320	req->ptr1 = SvPVbyte_nolen (req->sv1);
1321	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1436	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1322		1437
1323	if (flags & EIO_READDIR_DENTS)	1438	if (flags & EIO_READDIR_DENTS)
1324	req->int1 |= EIO_READDIR_CUSTOM2;	1439	req->int1 |= EIO_READDIR_CUSTOM2;
1325		1440
		1441	req_set_path1 (req, pathname);
		1442
1326	REQ_SEND;	1443	REQ_SEND;
		1444	}
		1445
		1446	void
		1447	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1448	PPCODE:
		1449	{
		1450	dREQ;
		1451
		1452	req->type = EIO_MKDIR;
		1453	req->int2 = mode;
		1454	req_set_path1 (req, pathname);
		1455
		1456	REQ_SEND;
1327	}	1457	}
1328		1458
1329	void	1459	void
1330	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1460	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1331	ALIAS:	1461	ALIAS:
…		…
1335	PPCODE:	1465	PPCODE:
1336	{	1466	{
1337	dREQ;	1467	dREQ;
1338		1468
1339	req->type = ix;	1469	req->type = ix;
1340	req->sv1 = newSVsv (pathname);	1470	req_set_path1 (req, pathname);
1341	req->ptr1 = SvPVbyte_nolen (req->sv1);
1342		1471
1343	REQ_SEND;	1472	REQ_SEND;
1344	}	1473	}
1345		1474
1346	void	1475	void
…		…
1349	aio_link = EIO_LINK	1478	aio_link = EIO_LINK
1350	aio_symlink = EIO_SYMLINK	1479	aio_symlink = EIO_SYMLINK
1351	aio_rename = EIO_RENAME	1480	aio_rename = EIO_RENAME
1352	PPCODE:	1481	PPCODE:
1353	{	1482	{
		1483	eio_wd wd2 = 0;
1354	dREQ;	1484	dREQ;
1355		1485
1356	req->type = ix;	1486	req->type = ix;
1357	req->sv1 = newSVsv (oldpath);	1487	req_set_path1 (req, oldpath);
1358	req->ptr1 = SvPVbyte_nolen (req->sv1);	1488	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1359	req->sv2 = newSVsv (newpath);	1489	req->int3 = (long)wd2;
1360	req->ptr2 = SvPVbyte_nolen (req->sv2);
1361		1490
1362	REQ_SEND;	1491	REQ_SEND;
1363	}	1492	}
1364		1493
1365	void	1494	void
…		…
1367	PPCODE:	1496	PPCODE:
1368	{	1497	{
1369	dREQ;	1498	dREQ;
1370		1499
1371	req->type = EIO_MKNOD;	1500	req->type = EIO_MKNOD;
1372	req->sv1 = newSVsv (pathname);
1373	req->ptr1 = SvPVbyte_nolen (req->sv1);
1374	req->int2 = (mode_t)mode;	1501	req->int2 = (mode_t)mode;
1375	req->offs = dev;	1502	req->offs = dev;
		1503	req_set_path1 (req, pathname);
1376		1504
1377	REQ_SEND;	1505	REQ_SEND;
1378	}	1506	}
1379		1507
1380	void	1508	void
…		…
1450		1578
1451	REQ_SEND;	1579	REQ_SEND;
1452	}	1580	}
1453		1581
1454	void	1582	void
		1583	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1584	PPCODE:
		1585	{
		1586	int fd = s_fileno_croak (fh, 0);
		1587	dREQ;
		1588
		1589	req->type = EIO_CUSTOM;
		1590	req->sv1 = newSVsv (fh);
		1591	req->int1 = fd;
		1592
		1593	req->feed = fiemap;
		1594	#if HAVE_FIEMAP
		1595	/* keep our fingers crossed that the next two types are 64 bit */
		1596	req->offs = start;
		1597	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1598	req->int2 = flags;
		1599	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1600	#endif
		1601
		1602	REQ_SEND;
		1603	}
		1604
		1605	void
1455	aio_busy (double delay, SV *callback=&PL_sv_undef)	1606	aio_busy (double delay, SV *callback=&PL_sv_undef)
1456	PPCODE:	1607	PPCODE:
1457	{	1608	{
1458	dREQ;	1609	dREQ;
1459		1610
…		…
1469	{	1620	{
1470	dREQ;	1621	dREQ;
1471		1622
1472	req->type = EIO_GROUP;	1623	req->type = EIO_GROUP;
1473		1624
		1625	PUTBACK;
1474	req_submit (req);	1626	req_submit (req);
		1627	SPAGAIN;
		1628
1475	XPUSHs (req_sv (req, aio_grp_stash));	1629	XPUSHs (req_sv (req, aio_grp_stash));
1476	}	1630	}
1477		1631
1478	void	1632	void
1479	aio_nop (SV *callback=&PL_sv_undef)	1633	aio_nop (SV *callback=&PL_sv_undef)
…		…
1580	CODE:	1734	CODE:
1581	RETVAL = posix_fadvise (fh, offset, length, advice);	1735	RETVAL = posix_fadvise (fh, offset, length, advice);
1582	OUTPUT:	1736	OUTPUT:
1583	RETVAL	1737	RETVAL
1584		1738
1585	ssize_t	1739	IV
1586	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1740	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1587	CODE:	1741	CODE:
1588	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1742	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1589	OUTPUT:	1743	OUTPUT:
1590	RETVAL	1744	RETVAL
1591		1745
1592	void	1746	void
1593	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1747	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1594	PPCODE:	1748	PPCODE:
1595	sv_unmagic (scalar, MMAP_MAGIC);	1749	sv_unmagic (scalar, MMAP_MAGIC);
1596	{	1750	{
1597	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1751	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1598	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1752	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
…		…
1631	ALIAS:	1785	ALIAS:
1632	mprotect = 1	1786	mprotect = 1
1633	CODE:	1787	CODE:
1634	{	1788	{
1635	STRLEN svlen;	1789	STRLEN svlen;
1636	void *addr = SvPVbyte (scalar, svlen);	1790	void *addr = SvPVbyte (scalar, svlen);
1637	size_t len = SvUV (length);	1791	size_t len = SvUV (length);
1638		1792
1639	if (offset < 0)	1793	if (offset < 0)
1640	offset += svlen;	1794	offset += svlen;
1641		1795
…		…
1660	int	1814	int
1661	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	1815	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1662	CODE:	1816	CODE:
1663	{	1817	{
1664	STRLEN svlen;	1818	STRLEN svlen;
1665	void *addr = SvPVbyte (scalar, svlen);	1819	void *addr = SvPVbyte (scalar, svlen);
1666	size_t len = SvUV (length);	1820	size_t len = SvUV (length);
1667		1821
1668	if (offset < 0)	1822	if (offset < 0)
1669	offset += svlen;	1823	offset += svlen;
1670		1824
…		…
1677	addr = (void *)(((intptr_t)addr) + offset);	1831	addr = (void *)(((intptr_t)addr) + offset);
1678	eio_page_align (&addr, &len);	1832	eio_page_align (&addr, &len);
1679	#if _POSIX_MEMLOCK_RANGE	1833	#if _POSIX_MEMLOCK_RANGE
1680	RETVAL = munlock (addr, len);	1834	RETVAL = munlock (addr, len);
1681	#else	1835	#else
1682	RETVAL = ((errno = ENOSYS), -1);	1836	RETVAL = EIO_ENOSYS ();
1683	#endif	1837	#endif
1684	}	1838	}
1685	OUTPUT:	1839	OUTPUT:
1686	RETVAL	1840	RETVAL
1687		1841
…		…
1689	munlockall ()	1843	munlockall ()
1690	CODE:	1844	CODE:
1691	#if _POSIX_MEMLOCK	1845	#if _POSIX_MEMLOCK
1692	munlockall ();	1846	munlockall ();
1693	#else	1847	#else
		1848	RETVAL = EIO_ENOSYS ();
		1849	#endif
		1850	OUTPUT:
		1851	RETVAL
		1852
		1853	int
		1854	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1855	CODE:
		1856	{
		1857	#if HAVE_LINUX_SPLICE
		1858	loff_t off_in_, off_out_;
		1859	RETVAL = splice (
		1860	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1861	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1862	length, flags
		1863	);
		1864	#else
		1865	RETVAL = EIO_ENOSYS ();
		1866	#endif
		1867	}
		1868	OUTPUT:
		1869	RETVAL
		1870
		1871	int
		1872	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1873	CODE:
		1874	#if HAVE_LINUX_SPLICE
		1875	RETVAL = tee (rfh, wfh, length, flags);
		1876	#else
		1877	RETVAL = EIO_ENOSYS ();
		1878	#endif
		1879	OUTPUT:
		1880	RETVAL
		1881
		1882	int
		1883	pipesize (aio_rfd rfh, int new_size = -1)
		1884	PROTOTYPE: $;$
		1885	CODE:
		1886	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		1887	if (new_size >= 0)
		1888	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		1889	else
		1890	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		1891	#else
		1892	errno = ENOSYS;
1694	RETVAL = -1;	1893	RETVAL = -1;
1695	errno = ENOSYS;
1696	#endif	1894	#endif
1697	OUTPUT:	1895	OUTPUT:
1698	RETVAL	1896	RETVAL
1699		1897
1700	void _on_next_submit (SV *cb)	1898	void _on_next_submit (SV *cb)
…		…
1702	SvREFCNT_dec (on_next_submit);	1900	SvREFCNT_dec (on_next_submit);
1703	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1901	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1704		1902
1705	PROTOTYPES: DISABLE	1903	PROTOTYPES: DISABLE
1706		1904
		1905	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1906
		1907	BOOT:
		1908	{
		1909	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1910	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1911	}
		1912
		1913	void
		1914	DESTROY (SV *self)
		1915	CODE:
		1916	{
		1917	aio_wd wd = SvAIO_WD (self);
		1918	#if HAVE_AT
		1919	{
		1920	SV *callback = &PL_sv_undef;
		1921	dREQ; /* clobbers next_pri :/ */
		1922	next_pri = req->pri; /* restore next_pri */
		1923	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1924	req->type = EIO_WD_CLOSE;
		1925	req->wd = wd;
		1926	REQ_SEND;
		1927	}
		1928	#else
		1929	eio_wd_close_sync (wd);
		1930	#endif
		1931	}
		1932
1707	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1933	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1708		1934
1709	void	1935	void
1710	cancel (aio_req_ornot req)	1936	cancel (aio_req_ornot req)
1711	CODE:	1937	CODE:

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