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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.195 by root, Mon Sep 26 20:19:08 2011 UTC vs.
Revision 1.265 by root, Tue Aug 14 11:50:43 2018 UTC

…		…
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
8		8
9	#include "schmorp.h"	9	#if !defined mg_findext
		10	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		11	#endif
10		12
11	#include <stddef.h>	13	#include <stddef.h>
12	#include <stdlib.h>	14	#include <stdlib.h>
13	#include <errno.h>	15	#include <errno.h>
14	#include <sys/types.h>	16	#include <sys/types.h>
		17	#include <sys/socket.h>
15	#include <sys/stat.h>	18	#include <sys/stat.h>
16	#include <limits.h>	19	#include <limits.h>
17	#include <fcntl.h>	20	#include <fcntl.h>
18	#include <sched.h>	21	#include <sched.h>
19		22
		23	#if HAVE_SYS_MKDEV_H
		24	# include <sys/mkdev.h>
		25	#elif HAVE_SYS_SYSMACROS_H
		26	# include <sys/sysmacros.h>
		27	#endif
		28
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	29	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	30	# include <sys/mman.h>
		31	#endif
		32
		33	/* the incompetent fool that created musl keeps __linux__, refuses
		34	* to implement any linux standard apis, and also has no way to test
		35	* for his broken iplementation. don't complain to me if this fails
		36	* for you.
		37	*/
		38	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		39	# include <linux/fs.h>
		40	# ifdef FS_IOC_FIEMAP
		41	# include <linux/types.h>
		42	# include <linux/fiemap.h>
		43	# define HAVE_FIEMAP 1
		44	# endif
22	#endif	45	#endif
23		46
24	/* perl namespace pollution */	47	/* perl namespace pollution */
25	#undef VERSION	48	#undef VERSION
26		49
…		…
62	#undef dup	85	#undef dup
63	#undef dup2	86	#undef dup2
64	#undef abort	87	#undef abort
65	#undef pipe	88	#undef pipe
66		89
		90	#define EIO_STRUCT_STAT struct _stati64
		91	#define EIO_STRUCT_STATI64
		92
67	#else	93	#else
68		94
69	#include <sys/time.h>	95	#include <sys/time.h>
70	#include <sys/select.h>	96	#include <sys/select.h>
71	#include <unistd.h>	97	#include <unistd.h>
72	#include <utime.h>	98	#include <utime.h>
73	#include <signal.h>	99	#include <signal.h>
74		100
75	#endif
76
77	#define EIO_STRUCT_STAT Stat_t	101	#define EIO_STRUCT_STAT Stat_t
78		102
79	/* use NV for 32 bit perls as it allows larger offsets */
80	#if IVSIZE >= 8
81	# define VAL64 IV
82	# define SvVAL64 SvIV
83	# define newSVval64 newSViv
84	#else
85	# define VAL64 NV
86	# define SvVAL64 SvNV
87	# define newSVval64 newSVnv
88	#endif	103	#endif
89		104
90	/*****************************************************************************/	105	/*****************************************************************************/
91		106
92	#if __GNUC__ >= 3	107	#if __GNUC__ >= 3
…		…
97		112
98	#define expect_false(expr) expect ((expr) != 0, 0)	113	#define expect_false(expr) expect ((expr) != 0, 0)
99	#define expect_true(expr) expect ((expr) != 0, 1)	114	#define expect_true(expr) expect ((expr) != 0, 1)
100		115
101	/*****************************************************************************/	116	/*****************************************************************************/
		117
		118	#include "config.h"
		119
		120	#if HAVE_ST_XTIMENSEC
		121	# define ATIMENSEC PL_statcache.st_atimensec
		122	# define MTIMENSEC PL_statcache.st_mtimensec
		123	# define CTIMENSEC PL_statcache.st_ctimensec
		124	#elif HAVE_ST_XTIMESPEC
		125	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		126	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		127	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		128	#else
		129	# define ATIMENSEC 0
		130	# define MTIMENSEC 0
		131	# define CTIMENSEC 0
		132	#endif
		133
		134	#include "schmorp.h"
		135
		136	#if HAVE_EVENTFD
		137	# include <sys/eventfd.h>
		138	#endif
		139
		140	#if HAVE_TIMERFD
		141	# include <sys/timerfd.h>
		142	#endif
		143
		144	#if HAVE_RLIMITS
		145	#include <sys/time.h>
		146	#include <sys/resource.h>
		147	#endif
102		148
103	typedef SV SV8; /* byte-sv, used for argument-checking */	149	typedef SV SV8; /* byte-sv, used for argument-checking */
104	typedef int aio_rfd; /* read file desriptor */	150	typedef int aio_rfd; /* read file desriptor */
105	typedef int aio_wfd; /* write file descriptor */	151	typedef int aio_wfd; /* write file descriptor */
106		152
…		…
113	STRLEN stroffset; \	159	STRLEN stroffset; \
114	SV *self;	160	SV *self;
115		161
116	#define EIO_NO_WRAPPERS 1	162	#define EIO_NO_WRAPPERS 1
117		163
118	#include "libeio/config.h"
119	#include "libeio/eio.h"	164	#include "libeio/eio.h"
120		165
121	static int req_invoke (eio_req *req);	166	static int req_invoke (eio_req *req);
122	#define EIO_FINISH(req) req_invoke (req)	167	#define EIO_FINISH(req) req_invoke (req)
123	static void req_destroy (eio_req *grp);	168	static void req_destroy (eio_req *grp);
124	#define EIO_DESTROY(req) req_destroy (req)	169	#define EIO_DESTROY(req) req_destroy (req)
125		170
126	#include "libeio/eio.c"	171	#include "libeio/eio.c"
127		172
128	/* Linux/others */
129	#ifndef O_ASYNC
130	# define O_ASYNC 0
131	#endif
132	#ifndef O_DIRECT
133	# define O_DIRECT 0
134	#endif
135	#ifndef O_NOATIME
136	# define O_NOATIME 0
137	#endif
138
139	/* POSIX */
140	#ifndef O_CLOEXEC
141	# define O_CLOEXEC 0
142	#endif
143	#ifndef O_NOFOLLOW
144	# define O_NOFOLLOW 0
145	#endif
146	#ifndef O_NOCTTY
147	# define O_NOCTTY 0
148	#endif
149	#ifndef O_NONBLOCK
150	# define O_NONBLOCK 0
151	#endif
152	#ifndef O_EXEC
153	# define O_EXEC 0
154	#endif
155	#ifndef O_SEARCH
156	# define O_SEARCH 0
157	#endif
158	#ifndef O_DIRECTORY
159	# define O_DIRECTORY 0
160	#endif
161	#ifndef O_DSYNC
162	# define O_DSYNC 0
163	#endif
164	#ifndef O_RSYNC
165	# define O_RSYNC 0
166	#endif
167	#ifndef O_SYNC
168	# define O_SYNC 0
169	#endif
170	#ifndef O_TTY_INIT
171	# define O_TTY_INIT 0
172	#endif
173
174	#ifndef POSIX_FADV_NORMAL
175	# define POSIX_FADV_NORMAL 0
176	#endif
177	#ifndef POSIX_FADV_SEQUENTIAL
178	# define POSIX_FADV_SEQUENTIAL 0
179	#endif
180	#ifndef POSIX_FADV_RANDOM
181	# define POSIX_FADV_RANDOM 0
182	#endif
183	#ifndef POSIX_FADV_NOREUSE
184	# define POSIX_FADV_NOREUSE 0
185	#endif
186	#ifndef POSIX_FADV_WILLNEED
187	# define POSIX_FADV_WILLNEED 0
188	#endif
189	#ifndef POSIX_FADV_DONTNEED
190	# define POSIX_FADV_DONTNEED 0
191	#endif
192
193	#if !HAVE_POSIX_FADVISE	173	#if !HAVE_POSIX_FADVISE
194	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	174	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
195	#endif	175	#endif
196		176
197	#ifndef POSIX_MADV_NORMAL
198	# define POSIX_MADV_NORMAL 0
199	#endif
200	#ifndef POSIX_MADV_SEQUENTIAL
201	# define POSIX_MADV_SEQUENTIAL 0
202	#endif
203	#ifndef POSIX_MADV_RANDOM
204	# define POSIX_MADV_RANDOM 0
205	#endif
206	#ifndef POSIX_MADV_WILLNEED
207	# define POSIX_MADV_WILLNEED 0
208	#endif
209	#ifndef POSIX_MADV_DONTNEED
210	# define POSIX_MADV_DONTNEED 0
211	#endif
212
213	#if !HAVE_POSIX_MADVISE	177	#if !HAVE_POSIX_MADVISE
214	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	178	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
215	#endif
216
217	#ifndef PROT_NONE
218	# define PROT_NONE 0
219	#endif
220	#ifndef PROT_READ
221	# define PROT_READ 0
222	#endif
223	#ifndef PROT_WRITE
224	# define PROT_READ 0
225	#endif
226	#ifndef PROT_EXEC
227	# define PROT_EXEC 0
228	#endif
229
230	#ifndef ST_RDONLY
231	# define ST_RDONLY 0
232	#endif
233	#ifndef ST_NOSUID
234	# define ST_NOSUID 0
235	#endif
236	#ifndef ST_NODEV
237	# define ST_NODEV 0
238	#endif
239	#ifndef ST_NOEXEC
240	# define ST_NOEXEC 0
241	#endif
242	#ifndef ST_SYNCHRONOUS
243	# define ST_SYNCHRONOUS 0
244	#endif
245	#ifndef ST_MANDLOCK
246	# define ST_MANDLOCK 0
247	#endif
248	#ifndef ST_WRITE
249	# define ST_WRITE 0
250	#endif
251	#ifndef ST_APPEND
252	# define ST_APPEND 0
253	#endif
254	#ifndef ST_IMMUTABLE
255	# define ST_IMMUTABLE 0
256	#endif
257	#ifndef ST_NOATIME
258	# define ST_NOATIME 0
259	#endif
260	#ifndef ST_NODIRATIME
261	# define ST_NODIRATIME 0
262	#endif
263	#ifndef ST_RELATIME
264	# define ST_RELATIME 0
265	#endif
266
267	#ifndef S_IFIFO
268	# define S_IFIFO 0
269	#endif
270	#ifndef S_IFCHR
271	# define S_IFCHR 0
272	#endif
273	#ifndef S_IFBLK
274	# define S_IFBLK 0
275	#endif
276	#ifndef S_IFLNK
277	# define S_IFLNK 0
278	#endif
279	#ifndef S_IFREG
280	# define S_IFREG 0
281	#endif
282	#ifndef S_IFDIR
283	# define S_IFDIR 0
284	#endif
285	#ifndef S_IFWHT
286	# define S_IFWHT 0
287	#endif
288	#ifndef S_IFSOCK
289	# define S_IFSOCK 0
290	#endif	179	#endif
291		180
292	#ifndef MAP_ANONYMOUS	181	#ifndef MAP_ANONYMOUS
293	# ifdef MAP_ANON	182	# ifdef MAP_ANON
294	# define MAP_ANONYMOUS MAP_ANON	183	# define MAP_ANONYMOUS MAP_ANON
295	# else	184	# else
296	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	185	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
297	# endif	186	# endif
298	#endif	187	#endif
299	#ifndef MAP_HUGETLB
300	# define MAP_HUGETLB 0
301	#endif
302	#ifndef MAP_LOCKED
303	# define MAP_LOCKED 0
304	#endif
305	#ifndef MAP_NORESERVE
306	# define MAP_NORESERVE 0
307	#endif
308	#ifndef MAP_POPULATE
309	# define MAP_POPULATE 0
310	#endif
311	#ifndef MAP_NONBLOCK
312	# define MAP_NONBLOCK 0
313	#endif
314		188
315	#ifndef makedev	189	#ifndef makedev
316	# define makedev(maj,min) (((maj) << 8) | (min))	190	# define makedev(maj,min) (((maj) << 8) | (min))
317	#endif	191	#endif
318	#ifndef major	192	#ifndef major
…		…
320	#endif	194	#endif
321	#ifndef minor	195	#ifndef minor
322	# define minor(dev) ((dev) & 0xff)	196	# define minor(dev) ((dev) & 0xff)
323	#endif	197	#endif
324		198
325	#ifndef PAGESIZE	199	#if PAGESIZE <= 0
326	# define PAGESIZE sysconf (_SC_PAGESIZE)	200	# define PAGESIZE sysconf (_SC_PAGESIZE)
327	#endif	201	#endif
		202
		203	/*****************************************************************************/
		204
		205	#if !_POSIX_MAPPED_FILES
		206	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		207	# define munmap(addr,length) EIO_ENOSYS ()
		208	#endif
		209
		210	#if !_POSIX_MEMORY_PROTECTION
		211	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		212	#endif
		213
		214	#if !MREMAP_MAYMOVE
		215	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		216	#endif
		217
		218	#define FOREIGN_MAGIC PERL_MAGIC_ext
		219
		220	static int ecb_cold
		221	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		222	{
		223	int old_errno = errno;
		224	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		225	errno = old_errno;
		226
		227	mg->mg_obj = 0; /* just in case */
		228
		229	SvREADONLY_off (sv);
		230
		231	if (SvPVX (sv) != mg->mg_ptr)
		232	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		233
		234	SvCUR_set (sv, 0);
		235	SvPVX (sv) = 0;
		236	SvOK_off (sv);
		237
		238	return 0;
		239	}
		240
		241	static MGVTBL mmap_vtbl = {
		242	0, 0, 0, 0, mmap_free
		243	};
		244
		245	static int ecb_cold
		246	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		247	{
		248	free (mg->mg_ptr);
		249	mg->mg_obj = 0; /* just in case */
		250
		251	SvREADONLY_off (sv);
		252
		253	if (SvPVX (sv) != mg->mg_ptr)
		254	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		255
		256	SvCUR_set (sv, 0);
		257	SvPVX (sv) = 0;
		258	SvOK_off (sv);
		259
		260	return 0;
		261	}
		262
		263	static MGVTBL sysfree_vtbl = {
		264	0, 0, 0, 0, sysfree_free
		265	};
		266
		267	/*****************************************************************************/
		268
		269	/* helper: set scalar to foreign ptr with custom free */
		270	static void
		271	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		272	{
		273	sv_force_normal (sv);
		274
		275	/* we store the length in mg_obj, as namlen is I32 :/ */
		276	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		277	->mg_obj = (SV *)length;
		278
		279	SvUPGRADE (sv, SVt_PV); /* nop... */
		280
		281	if (SvLEN (sv))
		282	Safefree (SvPVX (sv));
		283
		284	SvPVX (sv) = (char *)addr;
		285	SvCUR_set (sv, length);
		286	SvLEN_set (sv, 0);
		287	SvPOK_only (sv);
		288	}
		289
		290	static void
		291	sv_clear_foreign (SV *sv)
		292	{
		293	/* todo: iterate over magic and only free ours, but of course */
		294	/* the perl5porters will call that (correct) behaviour buggy */
		295	sv_unmagic (sv, FOREIGN_MAGIC);
		296	}
		297
		298	/*****************************************************************************/
		299
		300	/* defines all sorts of constants to 0 unless they are already defined */
		301	/* also provides const_iv_ and const_niv_ macros for them */
		302	#include "def0.h"
		303
		304	/*****************************************************************************/
		305
		306	static void
		307	fiemap (eio_req *req)
		308	{
		309	req->result = -1;
		310
		311	#if HAVE_FIEMAP
		312	/* assume some c99 */
		313	struct fiemap *fiemap = 0;
		314	size_t end_offset;
		315	int count = req->int3;
		316
		317	req->flags |= EIO_FLAG_PTR1_FREE;
		318
		319	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		320	/* increase in 3.5kb steps */
		321	if (count < 0)
		322	count = 8;
		323
		324	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		325	errno = ENOMEM;
		326	if (!fiemap)
		327	return;
		328
		329	req->ptr1 = fiemap;
		330
		331	fiemap->fm_start = req->offs;
		332	fiemap->fm_length = req->size;
		333	fiemap->fm_flags = req->int2;
		334	fiemap->fm_extent_count = count;
		335
		336	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		337	return;
		338
		339	if (req->int3 >= 0 /* not autosizing */
		340	|| !fiemap->fm_mapped_extents /* no more extents */
		341	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		342	goto done;
		343
		344	/* else we have to loop -
		345	* it would be tempting (actually I tried that first) to just query the
		346	* number of extents needed, but linux often feels like not returning all
		347	* extents, without telling us it left any out. this complicates
		348	* this quite a bit.
		349	*/
		350
		351	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		352
		353	for (;;)
		354	{
		355	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		356	char scratch[3072];
		357	struct fiemap *incmap = (struct fiemap *)scratch;
		358
		359	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		360	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		361	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		362	incmap->fm_flags = fiemap->fm_flags;
		363	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		364
		365	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		366	return;
		367
		368	if (!incmap->fm_mapped_extents)
		369	goto done;
		370
		371	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		372	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		373	errno = ENOMEM;
		374	if (!fiemap)
		375	return;
		376
		377	req->ptr1 = fiemap;
		378
		379	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		380	{
		381	struct fiemap_extent *e = incmap->fm_extents + count;
		382
		383	if (e->fe_logical + e->fe_length >= end_offset)
		384	goto done;
		385
		386	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		387
		388	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		389	goto done;
		390
		391	}
		392	}
		393
		394	done:
		395	req->result = 0;
		396
		397	#else
		398	errno = ENOSYS;
		399	#endif
		400	}
		401
		402	/*****************************************************************************/
328		403
329	enum {	404	enum {
330	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	405	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
331	};	406	};
332		407
333	typedef eio_req *aio_req;	408	typedef eio_req *aio_req;
334	typedef eio_req *aio_req_ornot;	409	typedef eio_req *aio_req_ornot;
335	typedef eio_wd *aio_wd;	410	typedef eio_wd aio_wd;
336		411
337	static SV *on_next_submit;	412	static SV *on_next_submit;
338	static int next_pri = EIO_PRI_DEFAULT;	413	static int next_pri = EIO_PRI_DEFAULT;
339	static int max_outstanding;	414	static int max_outstanding;
340		415
341	static s_epipe respipe;	416	static s_epipe respipe;
342		417
343	static void req_destroy (aio_req req);	418	static void req_destroy (aio_req req);
344	static void req_cancel (aio_req req);	419	static void req_cancel (aio_req req);
345		420
346	static void want_poll (void)	421	static void
		422	want_poll (void)
347	{	423	{
348	/* write a dummy byte to the pipe so fh becomes ready */	424	/* write a dummy byte to the pipe so fh becomes ready */
349	s_epipe_signal (&respipe);	425	s_epipe_signal (&respipe);
350	}	426	}
351		427
352	static void done_poll (void)	428	static void
		429	done_poll (void)
353	{	430	{
354	/* read any signals sent by the worker threads */	431	/* read any signals sent by the worker threads */
355	s_epipe_drain (&respipe);	432	s_epipe_drain (&respipe);
356	}	433	}
357		434
358	/* must be called at most once */	435	/* must be called at most once */
		436	static SV *
359	static SV *req_sv (aio_req req, HV *stash)	437	req_sv (aio_req req, HV *stash)
360	{	438	{
361	if (!req->self)	439	if (!req->self)
362	{	440	{
363	req->self = (SV *)newHV ();	441	req->self = (SV *)newHV ();
364	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	442	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
365	}	443	}
366		444
367	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	445	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
368	}	446	}
369		447
370	static aio_req SvAIO_REQ (SV *sv)	448	static SV *
		449	newSVaio_wd (aio_wd wd)
		450	{
		451	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		452	}
		453
		454	static aio_req
		455	SvAIO_REQ (SV *sv)
371	{	456	{
372	MAGIC *mg;	457	MAGIC *mg;
373		458
374	if (!SvROK (sv)	459	if (!SvROK (sv)
		460	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
375	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	461	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
376	&& SvSTASH (SvRV (sv)) != aio_req_stash	462	&& SvSTASH (SvRV (sv)) != aio_req_stash
377	&& !sv_derived_from (sv, "IO::AIO::REQ")))	463	&& !sv_derived_from (sv, "IO::AIO::REQ")))
378	croak ("object of class IO::AIO::REQ expected");	464	croak ("object of class IO::AIO::REQ expected");
379		465
380	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	466	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
381		467
382	return mg ? (aio_req)mg->mg_ptr : 0;	468	return mg ? (aio_req)mg->mg_ptr : 0;
383	}	469	}
384		470
385	static aio_wd SvAIO_WD (SV *sv)	471	static aio_wd
		472	SvAIO_WD (SV *sv)
386	{	473	{
387	if (!SvROK (sv)	474	if (!SvROK (sv)
		475	|| SvTYPE (SvRV (sv)) != SVt_PVMG
388	|| SvSTASH (SvRV (sv)) != aio_wd_stash	476	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
389	|| SvTYPE (SvRV (sv)) != SVt_PVMG)
390	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	477	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
391		478
392	return (aio_wd)(long)SvIVX (SvRV (sv));	479	return (aio_wd)(long)SvIVX (SvRV (sv));
393	}	480	}
394		481
		482	static SV *
		483	newmortalFH (int fd, int flags)
		484	{
		485	if (fd < 0)
		486	return &PL_sv_undef;
		487
		488	GV *gv = (GV *)sv_newmortal ();
		489	char sym[64];
		490	int symlen;
		491
		492	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		493	gv_init (gv, aio_stash, sym, symlen, 0);
		494
		495	symlen = snprintf (
		496	sym,
		497	sizeof (sym),
		498	"%s&=%d",
		499	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		500	fd
		501	);
		502
		503	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		504	? (SV *)gv : &PL_sv_undef;
		505	}
		506
		507	static void
395	static void aio_grp_feed (aio_req grp)	508	aio_grp_feed (aio_req grp)
396	{	509	{
397	if (grp->sv2 && SvOK (grp->sv2))	510	if (grp->sv2 && SvOK (grp->sv2))
398	{	511	{
399	dSP;	512	dSP;
400		513
…		…
408	FREETMPS;	521	FREETMPS;
409	LEAVE;	522	LEAVE;
410	}	523	}
411	}	524	}
412		525
		526	static void
413	static void req_submit (eio_req *req)	527	req_submit (eio_req *req)
414	{	528	{
415	eio_submit (req);	529	eio_submit (req);
416		530
417	if (expect_false (on_next_submit))	531	if (expect_false (on_next_submit))
418	{	532	{
…		…
425	PUTBACK;	539	PUTBACK;
426	call_sv (cb, G_DISCARD | G_EVAL);	540	call_sv (cb, G_DISCARD | G_EVAL);
427	}	541	}
428	}	542	}
429		543
		544	static int
430	static int req_invoke (eio_req *req)	545	req_invoke (eio_req *req)
431	{	546	{
432	if (req->flags & FLAG_SV2_RO_OFF)	547	if (req->flags & FLAG_SV2_RO_OFF)
433	SvREADONLY_off (req->sv2);	548	SvREADONLY_off (req->sv2);
434		549
435	if (!EIO_CANCELLED (req) && req->callback)	550	if (!EIO_CANCELLED (req) && req->callback)
…		…
457	}	572	}
458		573
459	switch (req->type)	574	switch (req->type)
460	{	575	{
461	case EIO_WD_OPEN:	576	case EIO_WD_OPEN:
462	PUSHs (sv_2mortal (sv_bless (newRV_noinc (newSViv (((long)req->wd))), aio_wd_stash)));	577	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
463	break;	578	break;
464		579
465	case EIO_READDIR:	580	case EIO_READDIR:
466	{	581	{
467	SV *rv = &PL_sv_undef;	582	SV *rv = &PL_sv_undef;
…		…
522	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	637	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
523	}	638	}
524	break;	639	break;
525		640
526	case EIO_OPEN:	641	case EIO_OPEN:
527	{	642	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
528	/* convert fd to fh */
529	SV *fh = &PL_sv_undef;
530
531	if (req->result >= 0)
532	{
533	GV *gv = (GV *)sv_newmortal ();
534	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
535	char sym [64];
536	int symlen;
537
538	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
539	gv_init (gv, aio_stash, sym, symlen, 0);
540
541	symlen = snprintf (
542	sym,
543	sizeof (sym),
544	"%s&=%d",
545	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
546	(int)req->result
547	);
548
549	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
550	fh = (SV *)gv;
551	}
552
553	PUSHs (fh);
554	}
555	break;	643	break;
556		644
557	case EIO_STATVFS:	645	case EIO_STATVFS:
558	case EIO_FSTATVFS:	646	case EIO_FSTATVFS:
559	{	647	{
…		…
562	#ifndef _WIN32	650	#ifndef _WIN32
563	if (req->result >= 0)	651	if (req->result >= 0)
564	{	652	{
565	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	653	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
566	HV *hv = newHV ();	654	HV *hv = newHV ();
		655	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		656	* chooses to make it a struct.
		657	*/
		658	unsigned long fsid = 0;
		659	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
567		660
568	rv = sv_2mortal (newRV_noinc ((SV *)hv));	661	rv = sv_2mortal (newRV_noinc ((SV *)hv));
569		662
570	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	663	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
571	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	664	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
573	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	666	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
574	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	667	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
575	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	668	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
576	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	669	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
577	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	670	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
578	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	671	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
579	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	672	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
580	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	673	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
581	}	674	}
582	#endif	675	#endif
583		676
…		…
611	break;	704	break;
612		705
613	case EIO_STAT:	706	case EIO_STAT:
614	case EIO_LSTAT:	707	case EIO_LSTAT:
615	case EIO_FSTAT:	708	case EIO_FSTAT:
616	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	709	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		710
617	PL_laststatval = req->result;	711	if (!(PL_laststatval = req->result))
618	/* if compilation fails here then perl's Stat_t is not struct _stati64 */	712	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
619	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	713	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		714
620	PUSHs (sv_result);	715	PUSHs (sv_result);
		716	break;
		717
		718	case EIO_SEEK:
		719	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
621	break;	720	break;
622		721
623	case EIO_READ:	722	case EIO_READ:
624	{	723	{
625	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	724	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
628	SvSETMAGIC (req->sv2);	727	SvSETMAGIC (req->sv2);
629	PUSHs (sv_result);	728	PUSHs (sv_result);
630	}	729	}
631	break;	730	break;
632		731
		732	case EIO_SLURP:
		733	{
		734	if (req->result >= 0)
		735	{
		736	/* if length was originally not known, we steal the malloc'ed memory */
		737	if (req->flags & EIO_FLAG_PTR2_FREE)
		738	{
		739	req->flags &= ~EIO_FLAG_PTR2_FREE;
		740	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		741	}
		742	else
		743	{
		744	SvCUR_set (req->sv2, req->result);
		745	*SvEND (req->sv2) = 0;
		746	SvPOK_only (req->sv2);
		747	}
		748
		749	SvSETMAGIC (req->sv2);
		750	}
		751
		752	PUSHs (sv_result);
		753	}
		754	break;
		755
		756	case EIO_CUSTOM:
		757	if (req->feed == fiemap)
		758	{
		759	#if HAVE_FIEMAP
		760	if (!req->result)
		761	{
		762	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		763
		764	if (fiemap->fm_extent_count)
		765	{
		766	AV *av = newAV ();
		767	int i;
		768
		769	while (fiemap->fm_mapped_extents)
		770	{
		771	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		772	AV *ext_av = newAV ();
		773
		774	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		775	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		776	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		777	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		778
		779	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		780	}
		781
		782	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		783	}
		784	else
		785	{
		786	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		787	PUSHs (sv_result);
		788	}
		789	}
		790	#endif
		791	}
		792	else
		793	PUSHs (sv_result);
		794	break;
		795
633	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	796	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
634	if (req->result > 0)	797	if (req->result > 0)
635	SvIV_set (sv_result, 0);	798	SvIV_set (sv_result, 0);
636	/* FALLTHROUGH */	799	/* FALLTHROUGH */
637		800
…		…
658	}	821	}
659		822
660	return !!SvTRUE (ERRSV);	823	return !!SvTRUE (ERRSV);
661	}	824	}
662		825
		826	static void
663	static void req_destroy (aio_req req)	827	req_destroy (aio_req req)
664	{	828	{
665	if (req->self)	829	if (req->self)
666	{	830	{
667	sv_unmagic (req->self, PERL_MAGIC_ext);	831	sv_unmagic (req->self, PERL_MAGIC_ext);
668	SvREFCNT_dec (req->self);	832	SvREFCNT_dec (req->self);
…		…
672	SvREFCNT_dec (req->sv2);	836	SvREFCNT_dec (req->sv2);
673	SvREFCNT_dec (req->sv3);	837	SvREFCNT_dec (req->sv3);
674	SvREFCNT_dec (req->sv4);	838	SvREFCNT_dec (req->sv4);
675	SvREFCNT_dec (req->callback);	839	SvREFCNT_dec (req->callback);
676		840
677	Safefree (req);	841	free (req);
678	}	842	}
679		843
		844	static void
680	static void req_cancel_subs (aio_req grp)	845	req_cancel_subs (aio_req grp)
681	{	846	{
682	if (grp->type != EIO_GROUP)	847	if (grp->type != EIO_GROUP)
683	return;	848	return;
684		849
685	SvREFCNT_dec (grp->sv2);	850	SvREFCNT_dec (grp->sv2);
686	grp->sv2 = 0;	851	grp->sv2 = 0;
687		852
688	eio_grp_cancel (grp);	853	eio_grp_cancel (grp);
689	}	854	}
690		855
		856	static void ecb_cold
691	static void create_respipe (void)	857	create_respipe (void)
692	{	858	{
693	if (s_epipe_renew (&respipe))	859	if (s_epipe_renew (&respipe))
694	croak ("IO::AIO: unable to initialize result pipe");	860	croak ("IO::AIO: unable to initialize result pipe");
695	}	861	}
696		862
697	static void poll_wait (void)	863	static void
		864	poll_wait (void)
698	{	865	{
699	while (eio_nreqs ())	866	while (eio_nreqs ())
700	{	867	{
701	int size;	868	int size;
702		869
703	X_LOCK (reslock);	870	X_LOCK (EIO_POOL->reslock);
704	size = res_queue.size;	871	size = EIO_POOL->res_queue.size;
705	X_UNLOCK (reslock);	872	X_UNLOCK (EIO_POOL->reslock);
706		873
707	if (size)	874	if (size)
708	return;	875	return;
709		876
710	etp_maybe_start_thread ();	877	etp_maybe_start_thread (EIO_POOL);
711		878
712	s_epipe_wait (&respipe);	879	s_epipe_wait (&respipe);
713	}	880	}
714	}	881	}
715		882
716	static int poll_cb (void)	883	static int
		884	poll_cb (void)
717	{	885	{
718	for (;;)	886	for (;;)
719	{	887	{
720	int res = eio_poll ();	888	int res = eio_poll ();
721		889
…		…
738	croak ("IO::AIO: unable to initialise eio library");	906	croak ("IO::AIO: unable to initialise eio library");
739	}	907	}
740		908
741	/*****************************************************************************/	909	/*****************************************************************************/
742		910
743	#if !_POSIX_MAPPED_FILES	911	static SV *
744	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
745	# define munmap(addr,length) (errno = ENOSYS, -1)
746	#endif
747
748	#if !_POSIX_MEMORY_PROTECTION
749	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
750	# define PROT_NONE 0
751	# define PROT_WRITE 0
752	# define MAP_PRIVATE 0
753	# define MAP_SHARED 0
754	# define MAP_FIXED 0
755	#endif
756
757	#define MMAP_MAGIC PERL_MAGIC_ext
758
759	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
760	{
761	int old_errno = errno;
762	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
763	errno = old_errno;
764
765	mg->mg_obj = 0; /* just in case */
766
767	SvREADONLY_off (sv);
768
769	if (SvPVX (sv) != mg->mg_ptr)
770	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
771
772	SvCUR_set (sv, 0);
773	SvPVX (sv) = 0;
774	SvOK_off (sv);
775
776	return 0;
777	}
778
779	static MGVTBL mmap_vtbl = {
780	0, 0, 0, 0, mmap_free
781	};
782
783	/*****************************************************************************/
784
785	static SV * get_cb (SV *cb_sv)	912	get_cb (SV *cb_sv)
786	{	913	{
787	SvGETMAGIC (cb_sv);	914	SvGETMAGIC (cb_sv);
788	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	915	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
789	}	916	}
790		917
		918	static aio_req ecb_noinline
		919	dreq (SV *callback)
		920	{
		921	SV *cb_cv;
		922	aio_req req;
		923	int req_pri = next_pri;
		924	next_pri = EIO_PRI_DEFAULT;
		925
		926	cb_cv = get_cb (callback);
		927
		928	req = calloc (sizeof (*req), 1);
		929	if (!req)
		930	croak ("out of memory during eio_req allocation");
		931
		932	req->callback = SvREFCNT_inc (cb_cv);
		933	req->pri = req_pri;
		934
		935	return req;
		936	}
		937
791	#define dREQ \	938	#define dREQ \
792	SV *cb_cv; \	939	aio_req req = dreq (callback); \
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	Newz (0, req, 1, eio_req); \
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		940
806	#define REQ_SEND \	941	#define REQ_SEND \
807	PUTBACK; \	942	PUTBACK; \
808	req_submit (req); \	943	req_submit (req); \
809	SPAGAIN; \	944	SPAGAIN; \
810	\	945	\
811	if (GIMME_V != G_VOID) \	946	if (GIMME_V != G_VOID) \
812	XPUSHs (req_sv (req, aio_req_stash));	947	XPUSHs (req_sv (req, aio_req_stash));
813		948
814	static void	949	ecb_inline void
815	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)	950	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
816	{	951	{
817	if (SvROK (path))	952	if (expect_false (SvROK (path)))
818	{	953	{
819	AV *av = (AV *)SvRV (path);	954	SV *rv = SvRV (path);
820	SV *wdob;	955	SV *wdob;
821		956
822	if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)	957	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
823	croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");	958	{
824
825	path = AvARRAY (av)[1];	959	path = AvARRAY (rv)[1];
826	wdob = AvARRAY (av)[0];	960	wdob = AvARRAY (rv)[0];
827		961
		962	if (SvOK (wdob))
		963	{
828	*wd = SvAIO_WD (wdob);	964	*wd = SvAIO_WD (wdob);
829	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));	965	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		966	}
		967	else
		968	*wd = EIO_INVALID_WD;
		969	}
		970	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		971	{
		972	*wd = (aio_wd)(long)SvIVX (rv);
		973	*wdsv = SvREFCNT_inc_NN (rv);
		974	*ptr = ".";
		975	return; /* path set to "." */
		976	}
		977	else
		978	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
830	}	979	}
831		980
832	*pathsv = newSVsv (path);	981	*pathsv = newSVsv (path);
833	*ptr = SvPVbyte_nolen (*pathsv);	982	*ptr = SvPVbyte_nolen (*pathsv);
834	}	983	}
835		984
836	static void	985	static void ecb_noinline
837	req_set_path1 (aio_req req, SV *path)	986	req_set_path1 (aio_req req, SV *path)
838	{	987	{
839	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);	988	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
840	}	989	}
841		990
842	static void	991	static void ecb_noinline
843	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)	992	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
844	{	993	{
845	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;	994	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
846		995
847	switch (SvTYPE (rv))	996	switch (SvTYPE (rv))
…		…
857	default:	1006	default:
858	req->type = type_path;	1007	req->type = type_path;
859	req_set_path1 (req, fh_or_path);	1008	req_set_path1 (req, fh_or_path);
860	break;	1009	break;
861	}	1010	}
862
863	}	1011	}
		1012
		1013	/*****************************************************************************/
		1014
		1015	static void
		1016	ts_set (struct timespec *ts, NV value)
		1017	{
		1018	ts->tv_sec = value;
		1019	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1020	}
		1021
		1022	static NV
		1023	ts_get (const struct timespec *ts)
		1024	{
		1025	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1026	}
		1027
		1028	/*****************************************************************************/
		1029
		1030	XS(boot_IO__AIO) ecb_cold;
864		1031
865	MODULE = IO::AIO PACKAGE = IO::AIO	1032	MODULE = IO::AIO PACKAGE = IO::AIO
866		1033
867	PROTOTYPES: ENABLE	1034	PROTOTYPES: ENABLE
868		1035
…		…
873	IV iv;	1040	IV iv;
874	} *civ, const_iv[] = {	1041	} *civ, const_iv[] = {
875	# define const_niv(name, value) { # name, (IV) value },	1042	# define const_niv(name, value) { # name, (IV) value },
876	# define const_iv(name) { # name, (IV) name },	1043	# define const_iv(name) { # name, (IV) name },
877	# define const_eio(name) { # name, (IV) EIO_ ## name },	1044	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1045
		1046	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1047	/* the first block can be undef if missing */
		1048	const_iv (ENOSYS)
878	const_iv (EXDEV)	1049	const_iv (EXDEV)
879	const_iv (ENOSYS)	1050	const_iv (EBADR)
		1051
		1052	/* for lseek */
		1053	const_iv (SEEK_DATA)
		1054	const_iv (SEEK_HOLE)
		1055
		1056	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1057	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1058	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1059	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1060	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1061	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1062
		1063	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1064	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1065	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1066	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1067	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1068
		1069	/* the second block will be 0 when missing */
		1070	const_iv (O_ACCMODE)
		1071
880	const_iv (O_RDONLY)	1072	const_iv (O_RDONLY)
881	const_iv (O_WRONLY)	1073	const_iv (O_WRONLY)
882	const_iv (O_RDWR)	1074	const_iv (O_RDWR)
883	const_iv (O_CREAT)	1075	const_iv (O_CREAT)
884	const_iv (O_TRUNC)	1076	const_iv (O_TRUNC)
…		…
897	const_iv (O_SEARCH)	1089	const_iv (O_SEARCH)
898	const_iv (O_DIRECTORY)	1090	const_iv (O_DIRECTORY)
899	const_iv (O_DSYNC)	1091	const_iv (O_DSYNC)
900	const_iv (O_RSYNC)	1092	const_iv (O_RSYNC)
901	const_iv (O_SYNC)	1093	const_iv (O_SYNC)
		1094	const_iv (O_PATH)
		1095	const_iv (O_TMPFILE)
902	const_iv (O_TTY_INIT)	1096	const_iv (O_TTY_INIT)
903		1097
904	const_iv (S_IFIFO)	1098	const_iv (S_IFIFO)
905	const_iv (S_IFCHR)	1099	const_iv (S_IFCHR)
906	const_iv (S_IFBLK)	1100	const_iv (S_IFBLK)
…		…
908	const_iv (S_IFREG)	1102	const_iv (S_IFREG)
909	const_iv (S_IFDIR)	1103	const_iv (S_IFDIR)
910	const_iv (S_IFWHT)	1104	const_iv (S_IFWHT)
911	const_iv (S_IFSOCK)	1105	const_iv (S_IFSOCK)
912	const_iv (S_IFMT)	1106	const_iv (S_IFMT)
913
914	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
915	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
916	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
917	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
918	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
919	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
920
921	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
922	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
923	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
924	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
925	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
926		1107
927	const_iv (ST_RDONLY)	1108	const_iv (ST_RDONLY)
928	const_iv (ST_NOSUID)	1109	const_iv (ST_NOSUID)
929	const_iv (ST_NODEV)	1110	const_iv (ST_NODEV)
930	const_iv (ST_NOEXEC)	1111	const_iv (ST_NOEXEC)
…		…
940	const_iv (PROT_NONE)	1121	const_iv (PROT_NONE)
941	const_iv (PROT_EXEC)	1122	const_iv (PROT_EXEC)
942	const_iv (PROT_READ)	1123	const_iv (PROT_READ)
943	const_iv (PROT_WRITE)	1124	const_iv (PROT_WRITE)
944		1125
945	/*const_iv (MAP_FIXED)*/
946	const_iv (MAP_PRIVATE)	1126	const_iv (MAP_PRIVATE)
947	const_iv (MAP_SHARED)	1127	const_iv (MAP_SHARED)
		1128	const_iv (MAP_FIXED)
948	const_iv (MAP_ANONYMOUS)	1129	const_iv (MAP_ANONYMOUS)
949		1130
950	/* linuxish */	1131	/* linuxish */
951	const_iv (MAP_HUGETLB)
952	const_iv (MAP_LOCKED)	1132	const_iv (MAP_LOCKED)
953	const_iv (MAP_NORESERVE)	1133	const_iv (MAP_NORESERVE)
954	const_iv (MAP_POPULATE)	1134	const_iv (MAP_POPULATE)
955	const_iv (MAP_NONBLOCK)	1135	const_iv (MAP_NONBLOCK)
		1136	const_iv (MAP_GROWSDOWN)
		1137	const_iv (MAP_32BIT)
		1138	const_iv (MAP_HUGETLB)
		1139	const_iv (MAP_STACK)
		1140
		1141	const_iv (MREMAP_MAYMOVE)
		1142	const_iv (MREMAP_FIXED)
		1143
		1144	const_iv (F_DUPFD_CLOEXEC)
		1145
		1146	const_iv (MSG_CMSG_CLOEXEC)
		1147	const_iv (SOCK_CLOEXEC)
		1148
		1149	const_iv (F_OFD_GETLK)
		1150	const_iv (F_OFD_SETLK)
		1151	const_iv (F_OFD_GETLKW)
		1152
		1153	const_iv (FIFREEZE)
		1154	const_iv (FITHAW)
		1155	const_iv (FITRIM)
		1156	const_iv (FICLONE)
		1157	const_iv (FICLONERANGE)
		1158	const_iv (FIDEDUPERANGE)
		1159
		1160	const_iv (FS_IOC_GETFLAGS)
		1161	const_iv (FS_IOC_SETFLAGS)
		1162	const_iv (FS_IOC_GETVERSION)
		1163	const_iv (FS_IOC_SETVERSION)
		1164	const_iv (FS_IOC_FIEMAP)
		1165	const_iv (FS_IOC_FSGETXATTR)
		1166	const_iv (FS_IOC_FSSETXATTR)
		1167	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1168	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1169	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1170
		1171	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1172
		1173	const_iv (FS_SECRM_FL)
		1174	const_iv (FS_UNRM_FL)
		1175	const_iv (FS_COMPR_FL)
		1176	const_iv (FS_SYNC_FL)
		1177	const_iv (FS_IMMUTABLE_FL)
		1178	const_iv (FS_APPEND_FL)
		1179	const_iv (FS_NODUMP_FL)
		1180	const_iv (FS_NOATIME_FL)
		1181	const_iv (FS_DIRTY_FL)
		1182	const_iv (FS_COMPRBLK_FL)
		1183	const_iv (FS_NOCOMP_FL)
		1184	const_iv (FS_ENCRYPT_FL)
		1185	const_iv (FS_BTREE_FL)
		1186	const_iv (FS_INDEX_FL)
		1187	const_iv (FS_JOURNAL_DATA_FL)
		1188	const_iv (FS_NOTAIL_FL)
		1189	const_iv (FS_DIRSYNC_FL)
		1190	const_iv (FS_TOPDIR_FL)
		1191	const_iv (FS_FL_USER_MODIFIABLE)
		1192
		1193	const_iv (FS_XFLAG_REALTIME)
		1194	const_iv (FS_XFLAG_PREALLOC)
		1195	const_iv (FS_XFLAG_IMMUTABLE)
		1196	const_iv (FS_XFLAG_APPEND)
		1197	const_iv (FS_XFLAG_SYNC)
		1198	const_iv (FS_XFLAG_NOATIME)
		1199	const_iv (FS_XFLAG_NODUMP)
		1200	const_iv (FS_XFLAG_RTINHERIT)
		1201	const_iv (FS_XFLAG_PROJINHERIT)
		1202	const_iv (FS_XFLAG_NOSYMLINKS)
		1203	const_iv (FS_XFLAG_EXTSIZE)
		1204	const_iv (FS_XFLAG_EXTSZINHERIT)
		1205	const_iv (FS_XFLAG_NODEFRAG)
		1206	const_iv (FS_XFLAG_FILESTREAM)
		1207	const_iv (FS_XFLAG_DAX)
		1208	const_iv (FS_XFLAG_HASATTR)
		1209
		1210	const_iv (FIEMAP_FLAG_SYNC)
		1211	const_iv (FIEMAP_FLAG_XATTR)
		1212	const_iv (FIEMAP_FLAGS_COMPAT)
		1213	const_iv (FIEMAP_EXTENT_LAST)
		1214	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1215	const_iv (FIEMAP_EXTENT_DELALLOC)
		1216	const_iv (FIEMAP_EXTENT_ENCODED)
		1217	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1218	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1219	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1220	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1221	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1222	const_iv (FIEMAP_EXTENT_MERGED)
		1223	const_iv (FIEMAP_EXTENT_SHARED)
		1224
		1225	const_iv (SPLICE_F_MOVE)
		1226	const_iv (SPLICE_F_NONBLOCK)
		1227	const_iv (SPLICE_F_MORE)
		1228	const_iv (SPLICE_F_GIFT)
		1229
		1230	const_iv (EFD_CLOEXEC)
		1231	const_iv (EFD_NONBLOCK)
		1232	const_iv (EFD_SEMAPHORE)
		1233
		1234	const_iv (CLOCK_REALTIME)
		1235	const_iv (CLOCK_MONOTONIC)
		1236	const_iv (CLOCK_BOOTTIME)
		1237	const_iv (CLOCK_REALTIME_ALARM)
		1238	const_iv (CLOCK_BOOTTIME_ALARM)
		1239
		1240	const_iv (TFD_NONBLOCK)
		1241	const_iv (TFD_CLOEXEC)
		1242
		1243	const_iv (TFD_TIMER_ABSTIME)
		1244	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1245
		1246	/* these are libeio constants, and are independent of gendef0 */
		1247	const_eio (SEEK_SET)
		1248	const_eio (SEEK_CUR)
		1249	const_eio (SEEK_END)
956		1250
957	const_eio (MCL_FUTURE)	1251	const_eio (MCL_FUTURE)
958	const_eio (MCL_CURRENT)	1252	const_eio (MCL_CURRENT)
959		1253
960	const_eio (MS_ASYNC)	1254	const_eio (MS_ASYNC)
…		…
966	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1260	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
967	const_eio (SYNC_FILE_RANGE_WRITE)	1261	const_eio (SYNC_FILE_RANGE_WRITE)
968	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1262	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
969		1263
970	const_eio (FALLOC_FL_KEEP_SIZE)	1264	const_eio (FALLOC_FL_KEEP_SIZE)
		1265	const_eio (FALLOC_FL_PUNCH_HOLE)
		1266	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1267	const_eio (FALLOC_FL_ZERO_RANGE)
		1268	const_eio (FALLOC_FL_INSERT_RANGE)
		1269	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1270
		1271	const_eio (RENAME_NOREPLACE)
		1272	const_eio (RENAME_EXCHANGE)
		1273	const_eio (RENAME_WHITEOUT)
971		1274
972	const_eio (READDIR_DENTS)	1275	const_eio (READDIR_DENTS)
973	const_eio (READDIR_DIRS_FIRST)	1276	const_eio (READDIR_DIRS_FIRST)
974	const_eio (READDIR_STAT_ORDER)	1277	const_eio (READDIR_STAT_ORDER)
975	const_eio (READDIR_FOUND_UNKNOWN)	1278	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1043	PROTOTYPE: $	1346	PROTOTYPE: $
1044	CODE:	1347	CODE:
1045	max_outstanding = maxreqs;	1348	max_outstanding = maxreqs;
1046		1349
1047	void	1350	void
1048	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1351	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1049	PPCODE:	1352	PPCODE:
1050	{	1353	{
1051	dREQ;	1354	dREQ;
1052		1355
1053	req->type = EIO_WD_OPEN;	1356	req->type = EIO_WD_OPEN;
…		…
1055		1358
1056	REQ_SEND;	1359	REQ_SEND;
1057	}	1360	}
1058		1361
1059	void	1362	void
1060	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1363	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1061	PPCODE:	1364	PPCODE:
1062	{	1365	{
1063	dREQ;	1366	dREQ;
1064		1367
1065	req->type = EIO_OPEN;	1368	req->type = EIO_OPEN;
…		…
1069		1372
1070	REQ_SEND;	1373	REQ_SEND;
1071	}	1374	}
1072		1375
1073	void	1376	void
1074	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1377	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1075	ALIAS:	1378	ALIAS:
1076	aio_fsync = EIO_FSYNC	1379	aio_fsync = EIO_FSYNC
1077	aio_fdatasync = EIO_FDATASYNC	1380	aio_fdatasync = EIO_FDATASYNC
1078	aio_syncfs = EIO_SYNCFS	1381	aio_syncfs = EIO_SYNCFS
1079	PPCODE:	1382	PPCODE:
1080	{	1383	{
1081	int fd = s_fileno_croak (fh, 0);	1384	int fd = s_fileno_croak (fh, 0);
1082	dREQ;	1385	dREQ;
1083		1386
1084	req->type = ix;	1387	req->type = ix;
1085	req->sv1 = newSVsv (fh);	1388	req->sv1 = newSVsv (fh);
1086	req->int1 = fd;	1389	req->int1 = fd;
1087		1390
1088	REQ_SEND (req);	1391	REQ_SEND;
1089	}	1392	}
1090		1393
1091	void	1394	void
1092	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1395	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1093	PPCODE:	1396	PPCODE:
1094	{	1397	{
1095	int fd = s_fileno_croak (fh, 0);	1398	int fd = s_fileno_croak (fh, 0);
1096	dREQ;	1399	dREQ;
1097		1400
1098	req->type = EIO_SYNC_FILE_RANGE;	1401	req->type = EIO_SYNC_FILE_RANGE;
1099	req->sv1 = newSVsv (fh);	1402	req->sv1 = newSVsv (fh);
1100	req->int1 = fd;	1403	req->int1 = fd;
1101	req->offs = offset;	1404	req->offs = offset;
1102	req->size = nbytes;	1405	req->size = nbytes;
1103	req->int2 = flags;	1406	req->int2 = flags;
1104		1407
1105	REQ_SEND (req);	1408	REQ_SEND;
1106	}	1409	}
1107		1410
1108	void	1411	void
1109	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1412	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1110	PPCODE:	1413	PPCODE:
1111	{	1414	{
1112	int fd = s_fileno_croak (fh, 0);	1415	int fd = s_fileno_croak (fh, 0);
1113	dREQ;	1416	dREQ;
1114		1417
1115	req->type = EIO_FALLOCATE;	1418	req->type = EIO_FALLOCATE;
1116	req->sv1 = newSVsv (fh);	1419	req->sv1 = newSVsv (fh);
1117	req->int1 = fd;	1420	req->int1 = fd;
1118	req->int2 = mode;	1421	req->int2 = mode;
1119	req->offs = offset;	1422	req->offs = offset;
1120	req->size = len;	1423	req->size = len;
1121		1424
1122	REQ_SEND (req);	1425	REQ_SEND;
1123	}	1426	}
1124		1427
1125	void	1428	void
1126	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1429	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1127	PPCODE:	1430	PPCODE:
1128	{	1431	{
1129	static int close_fd = -1; /* dummy fd to close fds via dup2 */	1432	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1130	int fd = s_fileno_croak (fh, 0);	1433	int fd = s_fileno_croak (fh, 0);
1131	dREQ;	1434	dREQ;
1132		1435
1133	if (expect_false (close_fd < 0))	1436	if (expect_false (close_fd < 0))
1134	{	1437	{
1135	int pipefd [2];	1438	int pipefd [2];
…		…
1151	req->type = EIO_DUP2;	1454	req->type = EIO_DUP2;
1152	req->int1 = close_fd;	1455	req->int1 = close_fd;
1153	req->sv2 = newSVsv (fh);	1456	req->sv2 = newSVsv (fh);
1154	req->int2 = fd;	1457	req->int2 = fd;
1155		1458
1156	REQ_SEND (req);	1459	REQ_SEND;
1157	}	1460	}
1158		1461
1159	void	1462	void
		1463	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1464	PPCODE:
		1465	{
		1466	int fd = s_fileno_croak (fh, 0);
		1467	dREQ;
		1468
		1469	req->type = EIO_SEEK;
		1470	req->sv1 = newSVsv (fh);
		1471	req->int1 = fd;
		1472	req->offs = SvVAL64 (offset);
		1473	req->int2 = whence;
		1474
		1475	REQ_SEND;
		1476	}
		1477
		1478	void
1160	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1479	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1161	ALIAS:	1480	ALIAS:
1162	aio_read = EIO_READ	1481	aio_read = EIO_READ
1163	aio_write = EIO_WRITE	1482	aio_write = EIO_WRITE
1164	PPCODE:	1483	PPCODE:
1165	{	1484	{
…		…
1181	len = svlen - dataoffset;	1500	len = svlen - dataoffset;
1182	}	1501	}
1183	else	1502	else
1184	{	1503	{
1185	/* read: check type and grow scalar as necessary */	1504	/* read: check type and grow scalar as necessary */
1186	SvUPGRADE (data, SVt_PV);	1505	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1187	svptr = SvGROW (data, len + dataoffset + 1);	1506	svptr = sv_grow (data, len + dataoffset + 1);
		1507	else if (SvCUR (data) < len + dataoffset)
		1508	croak ("length + dataoffset outside of scalar, and cannot grow");
1188	}	1509	}
1189		1510
1190	{	1511	{
1191	dREQ;	1512	dREQ;
1192		1513
…		…
1208	REQ_SEND;	1529	REQ_SEND;
1209	}	1530	}
1210	}	1531	}
1211		1532
1212	void	1533	void
		1534	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1535	ALIAS:
		1536	aio_ioctl = EIO_IOCTL
		1537	aio_fcntl = EIO_FCNTL
		1538	PPCODE:
		1539	{
		1540	int fd = s_fileno_croak (fh, 0);
		1541	char *svptr;
		1542
		1543	if (SvPOK (arg) || !SvNIOK (arg))
		1544	{
		1545	STRLEN svlen;
		1546	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1547	#ifdef IOCPARM_LEN
		1548	STRLEN need = IOCPARM_LEN (request);
		1549	#else
		1550	STRLEN need = 256;
		1551	#endif
		1552
		1553	if (svlen < need)
		1554	svptr = SvGROW (arg, need);
		1555	}
		1556	else
		1557	svptr = (char *)SvIV (arg);
		1558
		1559	{
		1560	dREQ;
		1561
		1562	req->type = ix;
		1563	req->sv1 = newSVsv (fh);
		1564	req->int1 = fd;
		1565	req->int2 = (long)request;
		1566	req->sv2 = SvREFCNT_inc (arg);
		1567	req->ptr2 = svptr;
		1568
		1569	REQ_SEND;
		1570	}
		1571	}
		1572
		1573	void
1213	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1574	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1214	ALIAS:	1575	ALIAS:
1215	aio_readlink = EIO_READLINK	1576	aio_readlink = EIO_READLINK
1216	aio_realpath = EIO_REALPATH	1577	aio_realpath = EIO_REALPATH
1217	PPCODE:	1578	PPCODE:
1218	{	1579	{
…		…
1223		1584
1224	REQ_SEND;	1585	REQ_SEND;
1225	}	1586	}
1226		1587
1227	void	1588	void
1228	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1589	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1229	PPCODE:	1590	PPCODE:
1230	{	1591	{
1231	int ifd = s_fileno_croak (in_fh , 0);	1592	int ifd = s_fileno_croak (in_fh , 0);
1232	int ofd = s_fileno_croak (out_fh, 1);	1593	int ofd = s_fileno_croak (out_fh, 1);
1233	dREQ;	1594	dREQ;
1234		1595
1235	req->type = EIO_SENDFILE;	1596	req->type = EIO_SENDFILE;
1236	req->sv1 = newSVsv (out_fh);	1597	req->sv1 = newSVsv (out_fh);
1237	req->int1 = ofd;	1598	req->int1 = ofd;
…		…
1242		1603
1243	REQ_SEND;	1604	REQ_SEND;
1244	}	1605	}
1245		1606
1246	void	1607	void
1247	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1608	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1248	PPCODE:	1609	PPCODE:
1249	{	1610	{
1250	int fd = s_fileno_croak (fh, 0);	1611	int fd = s_fileno_croak (fh, 0);
1251	dREQ;	1612	dREQ;
1252		1613
1253	req->type = EIO_READAHEAD;	1614	req->type = EIO_READAHEAD;
1254	req->sv1 = newSVsv (fh);	1615	req->sv1 = newSVsv (fh);
1255	req->int1 = fd;	1616	req->int1 = fd;
…		…
1258		1619
1259	REQ_SEND;	1620	REQ_SEND;
1260	}	1621	}
1261		1622
1262	void	1623	void
1263	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1624	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1264	ALIAS:	1625	ALIAS:
1265	aio_stat = EIO_STAT	1626	aio_stat = EIO_STAT
1266	aio_lstat = EIO_LSTAT	1627	aio_lstat = EIO_LSTAT
1267	aio_statvfs = EIO_STATVFS	1628	aio_statvfs = EIO_STATVFS
1268	PPCODE:	1629	PPCODE:
1269	{	1630	{
1270	dREQ;	1631	dREQ;
1271		1632
1272	req->sv1 = newSVsv (fh_or_path);
1273	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1633	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
		1634
1274	REQ_SEND;	1635	REQ_SEND;
1275	}	1636	}
		1637
		1638	void
		1639	st_xtime ()
		1640	ALIAS:
		1641	st_atime = 1
		1642	st_mtime = 2
		1643	st_ctime = 4
		1644	st_xtime = 7
		1645	PPCODE:
		1646	EXTEND (SP, 3);
		1647	if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1648	if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1649	if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1650
		1651	void
		1652	st_xtimensec ()
		1653	ALIAS:
		1654	st_atimensec = 1
		1655	st_mtimensec = 2
		1656	st_ctimensec = 4
		1657	st_xtimensec = 7
		1658	PPCODE:
		1659	EXTEND (SP, 3);
		1660	if (ix & 1) PUSHs (newSViv (ATIMENSEC));
		1661	if (ix & 2) PUSHs (newSViv (MTIMENSEC));
		1662	if (ix & 4) PUSHs (newSViv (CTIMENSEC));
1276		1663
1277	UV	1664	UV
1278	major (UV dev)	1665	major (UV dev)
1279	ALIAS:	1666	ALIAS:
1280	minor = 1	1667	minor = 1
1281	CODE:	1668	CODE:
1282	RETVAL = ix ? major (dev) : minor (dev);	1669	RETVAL = ix ? minor (dev) : major (dev);
1283	OUTPUT:	1670	OUTPUT:
1284	RETVAL	1671	RETVAL
1285		1672
1286	UV	1673	UV
1287	makedev (UV maj, UV min)	1674	makedev (UV maj, UV min)
…		…
1289	RETVAL = makedev (maj, min);	1676	RETVAL = makedev (maj, min);
1290	OUTPUT:	1677	OUTPUT:
1291	RETVAL	1678	RETVAL
1292		1679
1293	void	1680	void
1294	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1681	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1295	PPCODE:	1682	PPCODE:
1296	{	1683	{
1297	dREQ;	1684	dREQ;
1298		1685
1299	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1686	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1302		1689
1303	REQ_SEND;	1690	REQ_SEND;
1304	}	1691	}
1305		1692
1306	void	1693	void
1307	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1694	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1308	PPCODE:	1695	PPCODE:
1309	{	1696	{
1310	dREQ;	1697	dREQ;
1311		1698
1312	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1699	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1314		1701
1315	REQ_SEND;	1702	REQ_SEND;
1316	}	1703	}
1317		1704
1318	void	1705	void
1319	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1706	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1320	ALIAS:
1321	aio_chmod = EIO_CHMOD
1322	aio_mkdir = EIO_MKDIR
1323	PPCODE:	1707	PPCODE:
1324	{	1708	{
1325	dREQ;	1709	dREQ;
1326		1710
1327	req->int2 = mode;	1711	req->int2 = mode;
…		…
1329		1713
1330	REQ_SEND;	1714	REQ_SEND;
1331	}	1715	}
1332		1716
1333	void	1717	void
1334	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1718	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1335	PPCODE:	1719	PPCODE:
1336	{	1720	{
1337	dREQ;	1721	dREQ;
1338		1722
1339	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1723	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1342		1726
1343	REQ_SEND;	1727	REQ_SEND;
1344	}	1728	}
1345		1729
1346	void	1730	void
1347	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1731	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1348	PPCODE:	1732	PPCODE:
1349	{	1733	{
1350	dREQ;	1734	dREQ;
1351		1735
1352	req->type = EIO_READDIR;	1736	req->type = EIO_READDIR;
1353	req->sv1 = newSVsv (pathname);
1354	req->ptr1 = SvPVbyte_nolen (req->sv1);
1355	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1737	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1356		1738
1357	if (flags & EIO_READDIR_DENTS)	1739	if (flags & EIO_READDIR_DENTS)
1358	req->int1 |= EIO_READDIR_CUSTOM2;	1740	req->int1 |= EIO_READDIR_CUSTOM2;
1359		1741
		1742	req_set_path1 (req, pathname);
		1743
1360	REQ_SEND;	1744	REQ_SEND;
1361	}	1745	}
1362		1746
1363	void	1747	void
		1748	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1749	PPCODE:
		1750	{
		1751	dREQ;
		1752
		1753	req->type = EIO_MKDIR;
		1754	req->int2 = mode;
		1755	req_set_path1 (req, pathname);
		1756
		1757	REQ_SEND;
		1758	}
		1759
		1760	void
1364	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1761	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1365	ALIAS:	1762	ALIAS:
1366	aio_unlink = EIO_UNLINK	1763	aio_unlink = EIO_UNLINK
1367	aio_rmdir = EIO_RMDIR	1764	aio_rmdir = EIO_RMDIR
1368	aio_readdir = EIO_READDIR	1765	aio_readdir = EIO_READDIR
1369	PPCODE:	1766	PPCODE:
…		…
1375		1772
1376	REQ_SEND;	1773	REQ_SEND;
1377	}	1774	}
1378		1775
1379	void	1776	void
1380	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1777	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1381	ALIAS:	1778	ALIAS:
1382	aio_link = EIO_LINK	1779	aio_link = EIO_LINK
1383	aio_symlink = EIO_SYMLINK	1780	aio_symlink = EIO_SYMLINK
1384	aio_rename = EIO_RENAME	1781	aio_rename = EIO_RENAME
1385	PPCODE:	1782	PPCODE:
1386	{	1783	{
		1784	eio_wd wd2 = 0;
1387	dREQ;	1785	dREQ;
1388	eio_wd wd2;
1389		1786
1390	req->type = ix;	1787	req->type = ix;
1391	req_set_path1 (req, oldpath);	1788	req_set_path1 (req, oldpath);
1392	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);	1789	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1393	req->int3 = (long)wd2;	1790	req->int3 = (long)wd2;
1394		1791
1395	REQ_SEND;	1792	REQ_SEND;
1396	}	1793	}
1397		1794
1398	void	1795	void
		1796	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1797	PPCODE:
		1798	{
		1799	eio_wd wd2 = 0;
		1800	dREQ;
		1801
		1802	req->type = EIO_RENAME;
		1803	req_set_path1 (req, oldpath);
		1804	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1805	req->int2 = flags;
		1806	req->int3 = (long)wd2;
		1807
		1808	REQ_SEND;
		1809	}
		1810
		1811	void
1399	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1812	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1400	PPCODE:	1813	PPCODE:
1401	{	1814	{
1402	dREQ;	1815	dREQ;
1403		1816
1404	req->type = EIO_MKNOD;	1817	req->type = EIO_MKNOD;
…		…
1408		1821
1409	REQ_SEND;	1822	REQ_SEND;
1410	}	1823	}
1411		1824
1412	void	1825	void
1413	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1826	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1414	ALIAS:	1827	ALIAS:
1415	aio_mtouch = EIO_MTOUCH	1828	aio_mtouch = EIO_MTOUCH
1416	aio_msync = EIO_MSYNC	1829	aio_msync = EIO_MSYNC
1417	PPCODE:	1830	PPCODE:
1418	{	1831	{
1419	STRLEN svlen;	1832	STRLEN svlen;
1420	char *svptr = SvPVbyte (data, svlen);	1833	char *svptr = SvPVbyte (data, svlen);
1421	UV len = SvUV (length);	1834	UV len = SvUV (length);
		1835
		1836	if (flags < 0)
		1837	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1422		1838
1423	if (offset < 0)	1839	if (offset < 0)
1424	offset += svlen;	1840	offset += svlen;
1425		1841
1426	if (offset < 0 || offset > svlen)	1842	if (offset < 0 || offset > svlen)
…		…
1441	REQ_SEND;	1857	REQ_SEND;
1442	}	1858	}
1443	}	1859	}
1444		1860
1445	void	1861	void
1446	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1862	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1447	PPCODE:	1863	PPCODE:
1448	{	1864	{
1449	STRLEN svlen;	1865	STRLEN svlen;
1450	char *svptr = SvPVbyte (data, svlen);	1866	char *svptr = SvPVbyte (data, svlen);
1451	UV len = SvUV (length);	1867	UV len = SvUV (length);
…		…
1470	REQ_SEND;	1886	REQ_SEND;
1471	}	1887	}
1472	}	1888	}
1473		1889
1474	void	1890	void
1475	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1891	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1476	PPCODE:	1892	PPCODE:
1477	{	1893	{
1478	dREQ;	1894	dREQ;
1479		1895
1480	req->type = EIO_MLOCKALL;	1896	req->type = EIO_MLOCKALL;
…		…
1482		1898
1483	REQ_SEND;	1899	REQ_SEND;
1484	}	1900	}
1485		1901
1486	void	1902	void
		1903	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1904	PPCODE:
		1905	{
		1906	int fd = s_fileno_croak (fh, 0);
		1907	dREQ;
		1908
		1909	req->type = EIO_CUSTOM;
		1910	req->sv1 = newSVsv (fh);
		1911	req->int1 = fd;
		1912
		1913	req->feed = fiemap;
		1914	#if HAVE_FIEMAP
		1915	/* keep our fingers crossed that the next two types are 64 bit */
		1916	req->offs = start;
		1917	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1918	req->int2 = flags;
		1919	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1920	#endif
		1921
		1922	REQ_SEND;
		1923	}
		1924
		1925	void
		1926	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1927	PPCODE:
		1928	{
		1929	char *svptr = 0;
		1930
		1931	sv_clear_foreign (data);
		1932
		1933	if (length) /* known length, directly read into scalar */
		1934	{
		1935	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1936	svptr = sv_grow (data, length + 1);
		1937	else if (SvCUR (data) < length)
		1938	croak ("length outside of scalar, and cannot grow");
		1939	else
		1940	svptr = SvPVbyte_nolen (data);
		1941	}
		1942
		1943	{
		1944	dREQ;
		1945
		1946	req->type = EIO_SLURP;
		1947	req_set_path1 (req, pathname);
		1948	req->offs = offset;
		1949	req->size = length;
		1950	req->sv2 = SvREFCNT_inc (data);
		1951	req->ptr2 = svptr;
		1952
		1953	if (!SvREADONLY (data))
		1954	{
		1955	SvREADONLY_on (data);
		1956	req->flags |= FLAG_SV2_RO_OFF;
		1957	}
		1958
		1959	REQ_SEND;
		1960	}
		1961	}
		1962
		1963	void
1487	aio_busy (double delay, SV *callback=&PL_sv_undef)	1964	aio_busy (double delay, SV *callback = &PL_sv_undef)
1488	PPCODE:	1965	PPCODE:
1489	{	1966	{
1490	dREQ;	1967	dREQ;
1491		1968
1492	req->type = EIO_BUSY;	1969	req->type = EIO_BUSY;
…		…
1494		1971
1495	REQ_SEND;	1972	REQ_SEND;
1496	}	1973	}
1497		1974
1498	void	1975	void
1499	aio_group (SV *callback=&PL_sv_undef)	1976	aio_group (SV *callback = &PL_sv_undef)
1500	PPCODE:	1977	PPCODE:
1501	{	1978	{
1502	dREQ;	1979	dREQ;
1503		1980
1504	req->type = EIO_GROUP;	1981	req->type = EIO_GROUP;
1505		1982
		1983	PUTBACK;
1506	req_submit (req);	1984	req_submit (req);
		1985	SPAGAIN;
		1986
1507	XPUSHs (req_sv (req, aio_grp_stash));	1987	XPUSHs (req_sv (req, aio_grp_stash));
1508	}	1988	}
1509		1989
1510	void	1990	void
1511	aio_nop (SV *callback=&PL_sv_undef)	1991	aio_nop (SV *callback = &PL_sv_undef)
1512	ALIAS:	1992	ALIAS:
1513	aio_nop = EIO_NOP	1993	aio_nop = EIO_NOP
1514	aio_sync = EIO_SYNC	1994	aio_sync = EIO_SYNC
1515	PPCODE:	1995	PPCODE:
1516	{	1996	{
…		…
1520		2000
1521	REQ_SEND;	2001	REQ_SEND;
1522	}	2002	}
1523		2003
1524	int	2004	int
1525	aioreq_pri (int pri = 0)	2005	aioreq_pri (int pri = NO_INIT)
1526	CODE:	2006	CODE:
1527	RETVAL = next_pri;	2007	RETVAL = next_pri;
1528	if (items > 0)	2008	if (items > 0)
1529	{	2009	{
1530	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2010	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1620	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2100	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1621	OUTPUT:	2101	OUTPUT:
1622	RETVAL	2102	RETVAL
1623		2103
1624	void	2104	void
1625	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2105	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1626	PPCODE:	2106	PPCODE:
1627	sv_unmagic (scalar, MMAP_MAGIC);	2107	sv_clear_foreign (scalar);
1628	{	2108	{
1629	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2109	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1630	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2110	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1631	if (addr == (void *)-1)	2111	if (addr == (void *)-1)
1632	XSRETURN_NO;	2112	XSRETURN_NO;
1633		2113
1634	sv_force_normal (scalar);	2114	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1635
1636	/* we store the length in mg_obj, as namlen is I32 :/ */
1637	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1638	->mg_obj = (SV *)length;
1639
1640	SvUPGRADE (scalar, SVt_PV); /* nop... */
1641		2115
1642	if (!(prot & PROT_WRITE))	2116	if (!(prot & PROT_WRITE))
1643	SvREADONLY_on (scalar);	2117	SvREADONLY_on (scalar);
1644		2118
1645	if (SvLEN (scalar))
1646	Safefree (SvPVX (scalar));
1647
1648	SvPVX (scalar) = (char *)addr;
1649	SvCUR_set (scalar, length);
1650	SvLEN_set (scalar, 0);
1651	SvPOK_only (scalar);
1652
1653	XSRETURN_YES;	2119	XSRETURN_YES;
1654	}	2120	}
1655		2121
1656	void	2122	void
1657	munmap (SV *scalar)	2123	munmap (SV *scalar)
1658	CODE:	2124	CODE:
1659	sv_unmagic (scalar, MMAP_MAGIC);	2125	sv_clear_foreign (scalar);
		2126
		2127	SV *
		2128	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2129	CODE:
		2130	{
		2131	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2132	void *new;
		2133
		2134	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2135	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2136
		2137	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2138
		2139	RETVAL = &PL_sv_no;
		2140
		2141	if (new != (void *)-1)
		2142	{
		2143	RETVAL = new == (void *)mg->mg_ptr
		2144	? newSVpvn ("0 but true", 10)
		2145	: &PL_sv_yes;
		2146
		2147	mg->mg_ptr = (char *)new;
		2148	mg->mg_obj = (SV *)new_length;
		2149
		2150	SvPVX (scalar) = mg->mg_ptr;
		2151	SvCUR_set (scalar, new_length);
		2152	}
		2153	}
		2154	OUTPUT:
		2155	RETVAL
1660		2156
1661	int	2157	int
1662	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2158	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1663	ALIAS:	2159	ALIAS:
1664	mprotect = 1	2160	mprotect = 1
1665	CODE:	2161	CODE:
1666	{	2162	{
1667	STRLEN svlen;	2163	STRLEN svlen;
1668	void *addr = SvPVbyte (scalar, svlen);	2164	void *addr = SvPVbyte (scalar, svlen);
1669	size_t len = SvUV (length);	2165	STRLEN len = SvUV (length);
1670		2166
1671	if (offset < 0)	2167	if (offset < 0)
1672	offset += svlen;	2168	offset += svlen;
1673		2169
1674	if (offset < 0 || offset > svlen)	2170	if (offset < 0 || offset > svlen)
…		…
1688	}	2184	}
1689	OUTPUT:	2185	OUTPUT:
1690	RETVAL	2186	RETVAL
1691		2187
1692	int	2188	int
1693	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2189	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1694	CODE:	2190	CODE:
1695	{	2191	{
1696	STRLEN svlen;	2192	STRLEN svlen;
1697	void *addr = SvPVbyte (scalar, svlen);	2193	void *addr = SvPVbyte (scalar, svlen);
1698	size_t len = SvUV (length);	2194	size_t len = SvUV (length);
1699		2195
1700	if (offset < 0)	2196	if (offset < 0)
1701	offset += svlen;	2197	offset += svlen;
1702		2198
…		…
1709	addr = (void *)(((intptr_t)addr) + offset);	2205	addr = (void *)(((intptr_t)addr) + offset);
1710	eio_page_align (&addr, &len);	2206	eio_page_align (&addr, &len);
1711	#if _POSIX_MEMLOCK_RANGE	2207	#if _POSIX_MEMLOCK_RANGE
1712	RETVAL = munlock (addr, len);	2208	RETVAL = munlock (addr, len);
1713	#else	2209	#else
1714	RETVAL = ((errno = ENOSYS), -1);	2210	RETVAL = EIO_ENOSYS ();
1715	#endif	2211	#endif
1716	}	2212	}
1717	OUTPUT:	2213	OUTPUT:
1718	RETVAL	2214	RETVAL
1719		2215
…		…
1721	munlockall ()	2217	munlockall ()
1722	CODE:	2218	CODE:
1723	#if _POSIX_MEMLOCK	2219	#if _POSIX_MEMLOCK
1724	munlockall ();	2220	munlockall ();
1725	#else	2221	#else
1726	RETVAL = -1;	2222	RETVAL = EIO_ENOSYS ();
1727	errno = ENOSYS;
1728	#endif	2223	#endif
1729	OUTPUT:	2224	OUTPUT:
1730	RETVAL	2225	RETVAL
		2226
		2227	int
		2228	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2229	CODE:
		2230	{
		2231	#if HAVE_LINUX_SPLICE
		2232	loff_t off_in_, off_out_;
		2233	RETVAL = splice (
		2234	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2235	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2236	length, flags
		2237	);
		2238	#else
		2239	RETVAL = EIO_ENOSYS ();
		2240	#endif
		2241	}
		2242	OUTPUT:
		2243	RETVAL
		2244
		2245	int
		2246	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2247	CODE:
		2248	#if HAVE_LINUX_SPLICE
		2249	RETVAL = tee (rfh, wfh, length, flags);
		2250	#else
		2251	RETVAL = EIO_ENOSYS ();
		2252	#endif
		2253	OUTPUT:
		2254	RETVAL
		2255
		2256	int
		2257	pipesize (aio_rfd rfh, int new_size = -1)
		2258	PROTOTYPE: $;$
		2259	CODE:
		2260	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2261	if (new_size >= 0)
		2262	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2263	else
		2264	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2265	#else
		2266	errno = ENOSYS;
		2267	RETVAL = -1;
		2268	#endif
		2269	OUTPUT:
		2270	RETVAL
		2271
		2272	void
		2273	pipe2 (int flags = 0)
		2274	PROTOTYPE: ;$
		2275	PPCODE:
		2276	{
		2277	int fd[2];
		2278	int res;
		2279
		2280	if (flags)
		2281	#if HAVE_PIPE2
		2282	res = pipe2 (fd, flags);
		2283	#else
		2284	res = (errno = ENOSYS, -1);
		2285	#endif
		2286	else
		2287	res = pipe (fd);
		2288
		2289	if (!res)
		2290	{
		2291	EXTEND (SP, 2);
		2292	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2293	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2294	}
		2295	}
		2296
		2297	void
		2298	eventfd (unsigned int initval = 0, int flags = 0)
		2299	PPCODE:
		2300	{
		2301	int fd;
		2302	#if HAVE_EVENTFD
		2303	fd = eventfd (initval, flags);
		2304	#else
		2305	fd = (errno = ENOSYS, -1);
		2306	#endif
		2307
		2308	XPUSHs (newmortalFH (fd, O_RDWR));
		2309	}
		2310
		2311	void
		2312	timerfd_create (int clockid, int flags = 0)
		2313	PPCODE:
		2314	{
		2315	int fd;
		2316	#if HAVE_TIMERFD
		2317	fd = timerfd_create (clockid, flags);
		2318	#else
		2319	fd = (errno = ENOSYS, -1);
		2320	#endif
		2321
		2322	XPUSHs (newmortalFH (fd, O_RDWR));
		2323	}
		2324
		2325	void
		2326	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2327	PPCODE:
		2328	{
		2329	int fd = s_fileno_croak (fh, 0);
		2330	#if HAVE_TIMERFD
		2331	int res;
		2332	struct itimerspec its, ots;
		2333
		2334	ts_set (&its.it_interval, interval);
		2335	ts_set (&its.it_value , value);
		2336	res = timerfd_settime (fd, flags, &its, &ots);
		2337
		2338	if (!res)
		2339	{
		2340	EXTEND (SP, 2);
		2341	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2342	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2343	}
		2344	#else
		2345	errno = ENOSYS;
		2346	#endif
		2347	}
		2348
		2349	void
		2350	timerfd_gettime (SV *fh)
		2351	PPCODE:
		2352	{
		2353	int fd = s_fileno_croak (fh, 0);
		2354	#if HAVE_TIMERFD
		2355	int res;
		2356	struct itimerspec ots;
		2357	res = timerfd_gettime (fd, &ots);
		2358
		2359	if (!res)
		2360	{
		2361	EXTEND (SP, 2);
		2362	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2363	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2364	}
		2365	#else
		2366	errno = ENOSYS;
		2367	#endif
		2368	}
		2369
		2370	UV
		2371	get_fdlimit ()
		2372	CODE:
		2373	#if HAVE_RLIMITS
		2374	struct rlimit rl;
		2375	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2376	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2377	#endif
		2378	XSRETURN_UNDEF;
		2379	OUTPUT:
		2380	RETVAL
		2381
		2382	void
		2383	min_fdlimit (UV limit = 0x7fffffffU)
		2384	CODE:
		2385	{
		2386	#if HAVE_RLIMITS
		2387	struct rlimit rl;
		2388	rlim_t orig_rlim_max;
		2389	UV bit;
		2390
		2391	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2392	goto fail;
		2393
		2394	if (rl.rlim_cur == RLIM_INFINITY)
		2395	XSRETURN_YES;
		2396
		2397	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2398
		2399	if (rl.rlim_cur < limit)
		2400	{
		2401	rl.rlim_cur = limit;
		2402
		2403	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2404	rl.rlim_max = rl.rlim_cur;
		2405	}
		2406
		2407	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2408	XSRETURN_YES;
		2409
		2410	if (errno == EPERM)
		2411	{
		2412	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2413	/* our limit overflows a system-wide limit */
		2414	/* try an adaptive algorithm, but do not lower the hardlimit */
		2415	rl.rlim_max = 0;
		2416	for (bit = 0x40000000U; bit; bit >>= 1)
		2417	{
		2418	rl.rlim_max |= bit;
		2419	rl.rlim_cur = rl.rlim_max;
		2420
		2421	/* nevr decrease the hard limit */
		2422	if (rl.rlim_max < orig_rlim_max)
		2423	break;
		2424
		2425	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2426	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2427	}
		2428
		2429	/* now, raise the soft limit to the max permitted */
		2430	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2431	{
		2432	rl.rlim_cur = rl.rlim_max;
		2433	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2434	errno = EPERM;
		2435	}
		2436	}
		2437	#endif
		2438	fail:
		2439	XSRETURN_UNDEF;
		2440	}
1731		2441
1732	void _on_next_submit (SV *cb)	2442	void _on_next_submit (SV *cb)
1733	CODE:	2443	CODE:
1734	SvREFCNT_dec (on_next_submit);	2444	SvREFCNT_dec (on_next_submit);
1735	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2445	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1736		2446
1737	PROTOTYPES: DISABLE	2447	PROTOTYPES: DISABLE
1738		2448
1739	MODULE = IO::AIO PACKAGE = IO::AIO::WD	2449	MODULE = IO::AIO PACKAGE = IO::AIO::WD
1740		2450
		2451	BOOT:
		2452	{
		2453	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2454	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2455	}
		2456
1741	void	2457	void
1742	DESTROY (SV *self)	2458	DESTROY (SV *self)
1743	CODE:	2459	CODE:
1744	{	2460	{
1745	aio_wd wd = SvAIO_WD (self);	2461	aio_wd wd = SvAIO_WD (self);
1746	#if HAVE_AT	2462	#if HAVE_AT
		2463	{
1747	SV *callback = &PL_sv_undef;	2464	SV *callback = &PL_sv_undef;
1748	dREQ; /* clobbers next_pri :/ */	2465	dREQ; /* clobbers next_pri :/ */
		2466	next_pri = req->pri; /* restore next_pri */
		2467	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1749	req->type = EIO_WD_CLOSE;	2468	req->type = EIO_WD_CLOSE;
1750	req->wd = wd;	2469	req->wd = wd;
1751	REQ_SEND;	2470	REQ_SEND;
		2471	}
1752	#else	2472	#else
1753	eio_wd_close_sync (wd);	2473	eio_wd_close_sync (wd);
1754	#endif	2474	#endif
1755	}	2475	}
1756		2476
…		…
1760	cancel (aio_req_ornot req)	2480	cancel (aio_req_ornot req)
1761	CODE:	2481	CODE:
1762	eio_cancel (req);	2482	eio_cancel (req);
1763		2483
1764	void	2484	void
1765	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2485	cb (aio_req_ornot req, SV *callback = NO_INIT)
1766	PPCODE:	2486	PPCODE:
1767	{	2487	{
1768	if (GIMME_V != G_VOID)	2488	if (GIMME_V != G_VOID)
1769	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2489	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1770		2490
1771	if (items > 1)	2491	if (items > 1)
1772	{	2492	{
1773	SV *cb_cv =get_cb (callback);	2493	SV *cb_cv = get_cb (callback);
1774		2494
1775	SvREFCNT_dec (req->callback);	2495	SvREFCNT_dec (req->callback);
1776	req->callback = SvREFCNT_inc (cb_cv);	2496	req->callback = SvREFCNT_inc (cb_cv);
1777	}	2497	}
1778	}	2498	}
…		…
1835	limit (aio_req grp, int limit)	2555	limit (aio_req grp, int limit)
1836	CODE:	2556	CODE:
1837	eio_grp_limit (grp, limit);	2557	eio_grp_limit (grp, limit);
1838		2558
1839	void	2559	void
1840	feed (aio_req grp, SV *callback=&PL_sv_undef)	2560	feed (aio_req grp, SV *callback = &PL_sv_undef)
1841	CODE:	2561	CODE:
1842	{	2562	{
1843	SvREFCNT_dec (grp->sv2);	2563	SvREFCNT_dec (grp->sv2);
1844	grp->sv2 = newSVsv (callback);	2564	grp->sv2 = newSVsv (callback);
1845	grp->feed = aio_grp_feed;	2565	grp->feed = aio_grp_feed;

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