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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.202 by root, Thu Sep 29 10:01:35 2011 UTC vs.
Revision 1.274 by root, Sun Mar 10 12:16:48 2019 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
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	#include "perliol.h"
8		9
9	#include "schmorp.h"	10	#if !defined mg_findext
		11	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		12	#endif
10		13
11	#include <stddef.h>	14	#include <stddef.h>
12	#include <stdlib.h>	15	#include <stdlib.h>
13	#include <errno.h>	16	#include <errno.h>
14	#include <sys/types.h>	17	#include <sys/types.h>
		18	#include <sys/socket.h>
15	#include <sys/stat.h>	19	#include <sys/stat.h>
16	#include <limits.h>	20	#include <limits.h>
17	#include <fcntl.h>	21	#include <fcntl.h>
18	#include <sched.h>	22	#include <sched.h>
19		23
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	24	/* the incompetent fool that created musl keeps __linux__, refuses
21	# include <sys/mman.h>	25	* to implement any linux standard apis, and also has no way to test
		26	* for his broken iplementation. don't complain to me if this fails
		27	* for you.
		28	*/
		29	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		30	# include <linux/fs.h>
		31	# ifdef FS_IOC_FIEMAP
		32	# include <linux/types.h>
		33	# include <linux/fiemap.h>
		34	# define HAVE_FIEMAP 1
		35	# endif
22	#endif	36	#endif
23		37
24	/* perl namespace pollution */	38	/* perl namespace pollution */
25	#undef VERSION	39	#undef VERSION
26		40
…		…
61	#undef fchmod	75	#undef fchmod
62	#undef dup	76	#undef dup
63	#undef dup2	77	#undef dup2
64	#undef abort	78	#undef abort
65	#undef pipe	79	#undef pipe
		80	#undef utime
		81
		82	#define EIO_STRUCT_STAT struct _stati64
		83	#define EIO_STRUCT_STATI64
66		84
67	#else	85	#else
68		86
69	#include <sys/time.h>	87	#include <sys/time.h>
70	#include <sys/select.h>	88	#include <sys/select.h>
71	#include <unistd.h>	89	#include <unistd.h>
72	#include <utime.h>	90	#include <utime.h>
73	#include <signal.h>	91	#include <signal.h>
74		92
75	#endif
76
77	#define EIO_STRUCT_STAT Stat_t	93	#define EIO_STRUCT_STAT Stat_t
78		94
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	95	#endif
89		96
90	/*****************************************************************************/	97	/*****************************************************************************/
91		98
92	#if __GNUC__ >= 3	99	#if __GNUC__ >= 3
…		…
97		104
98	#define expect_false(expr) expect ((expr) != 0, 0)	105	#define expect_false(expr) expect ((expr) != 0, 0)
99	#define expect_true(expr) expect ((expr) != 0, 1)	106	#define expect_true(expr) expect ((expr) != 0, 1)
100		107
101	/*****************************************************************************/	108	/*****************************************************************************/
		109
		110	#include "config.h"
		111
		112	#if HAVE_SYS_MKDEV_H
		113	# include <sys/mkdev.h>
		114	#elif HAVE_SYS_SYSMACROS_H
		115	# include <sys/sysmacros.h>
		116	#endif
		117
		118	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		119	# include <sys/mman.h>
		120	#endif
		121
		122	#if HAVE_SYS_UIO_H
		123	# include <sys/uio.h>
		124	#endif
		125
		126	#if HAVE_ST_XTIMENSEC
		127	# define ATIMENSEC PL_statcache.st_atimensec
		128	# define MTIMENSEC PL_statcache.st_mtimensec
		129	# define CTIMENSEC PL_statcache.st_ctimensec
		130	#elif HAVE_ST_XTIMESPEC
		131	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		132	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		133	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		134	#else
		135	# define ATIMENSEC 0
		136	# define MTIMENSEC 0
		137	# define CTIMENSEC 0
		138	#endif
		139
		140	#if HAVE_ST_BIRTHTIMENSEC
		141	# define BTIMESEC PL_statcache.st_birthtime
		142	# define BTIMENSEC PL_statcache.st_birthtimensec
		143	#elif HAVE_ST_BIRTHTIMESPEC
		144	# define BTIMESEC PL_statcache.st_birthtim.tv_sec
		145	# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
		146	#else
		147	# define BTIMESEC 0
		148	# define BTIMENSEC 0
		149	#endif
		150
		151	#if HAVE_ST_GEN
		152	# define ST_GEN PL_statcache.st_gen
		153	#else
		154	# define ST_GEN 0
		155	#endif
		156
		157	#include "schmorp.h"
		158
		159	#if HAVE_EVENTFD
		160	# include <sys/eventfd.h>
		161	#endif
		162
		163	#if HAVE_TIMERFD
		164	# include <sys/timerfd.h>
		165	#endif
		166
		167	#if HAVE_RLIMITS
		168	#include <sys/time.h>
		169	#include <sys/resource.h>
		170	#endif
102		171
103	typedef SV SV8; /* byte-sv, used for argument-checking */	172	typedef SV SV8; /* byte-sv, used for argument-checking */
104	typedef int aio_rfd; /* read file desriptor */	173	typedef int aio_rfd; /* read file desriptor */
105	typedef int aio_wfd; /* write file descriptor */	174	typedef int aio_wfd; /* write file descriptor */
106		175
…		…
113	STRLEN stroffset; \	182	STRLEN stroffset; \
114	SV *self;	183	SV *self;
115		184
116	#define EIO_NO_WRAPPERS 1	185	#define EIO_NO_WRAPPERS 1
117		186
118	#include "libeio/config.h"
119	#include "libeio/eio.h"	187	#include "libeio/eio.h"
120		188
121	static int req_invoke (eio_req *req);	189	static int req_invoke (eio_req *req);
122	#define EIO_FINISH(req) req_invoke (req)	190	#define EIO_FINISH(req) req_invoke (req)
123	static void req_destroy (eio_req *grp);	191	static void req_destroy (eio_req *grp);
124	#define EIO_DESTROY(req) req_destroy (req)	192	#define EIO_DESTROY(req) req_destroy (req)
125		193
126	#include "libeio/eio.c"	194	#include "libeio/eio.c"
127		195
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	196	#if !HAVE_POSIX_FADVISE
194	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	197	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
195	#endif	198	#endif
196		199
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	200	#if !HAVE_POSIX_MADVISE
214	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	201	# 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	202	#endif
291		203
292	#ifndef MAP_ANONYMOUS	204	#ifndef MAP_ANONYMOUS
293	# ifdef MAP_ANON	205	# ifdef MAP_ANON
294	# define MAP_ANONYMOUS MAP_ANON	206	# define MAP_ANONYMOUS MAP_ANON
295	# else	207	# else
296	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	208	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
297	# endif	209	# endif
298	#endif	210	#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		211
315	#ifndef makedev	212	#ifndef makedev
316	# define makedev(maj,min) (((maj) << 8) | (min))	213	# define makedev(maj,min) (((maj) << 8) | (min))
317	#endif	214	#endif
318	#ifndef major	215	#ifndef major
…		…
320	#endif	217	#endif
321	#ifndef minor	218	#ifndef minor
322	# define minor(dev) ((dev) & 0xff)	219	# define minor(dev) ((dev) & 0xff)
323	#endif	220	#endif
324		221
		222	/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
		223	#ifdef __sun
325	#ifndef PAGESIZE	224	# undef PAGESIZE
		225	#endif
		226
		227	#if PAGESIZE <= 0
326	# define PAGESIZE sysconf (_SC_PAGESIZE)	228	# define PAGESIZE sysconf (_SC_PAGESIZE)
327	#endif	229	#endif
		230
		231	/*****************************************************************************/
		232
		233	#if !_POSIX_MAPPED_FILES
		234	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		235	# define munmap(addr,length) EIO_ENOSYS ()
		236	#endif
		237
		238	#if !_POSIX_MEMORY_PROTECTION
		239	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		240	#endif
		241
		242	#if !MREMAP_MAYMOVE
		243	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		244	#endif
		245
		246	#define FOREIGN_MAGIC PERL_MAGIC_ext
		247
		248	static int ecb_cold
		249	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		250	{
		251	int old_errno = errno;
		252	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		253	errno = old_errno;
		254
		255	mg->mg_obj = 0; /* just in case */
		256
		257	SvREADONLY_off (sv);
		258
		259	if (SvPVX (sv) != mg->mg_ptr)
		260	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		261
		262	SvCUR_set (sv, 0);
		263	SvPVX (sv) = 0;
		264	SvOK_off (sv);
		265
		266	return 0;
		267	}
		268
		269	static MGVTBL mmap_vtbl = {
		270	0, 0, 0, 0, mmap_free
		271	};
		272
		273	static int ecb_cold
		274	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		275	{
		276	free (mg->mg_ptr);
		277	mg->mg_obj = 0; /* just in case */
		278
		279	SvREADONLY_off (sv);
		280
		281	if (SvPVX (sv) != mg->mg_ptr)
		282	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		283
		284	SvCUR_set (sv, 0);
		285	SvPVX (sv) = 0;
		286	SvOK_off (sv);
		287
		288	return 0;
		289	}
		290
		291	static MGVTBL sysfree_vtbl = {
		292	0, 0, 0, 0, sysfree_free
		293	};
		294
		295	/*****************************************************************************/
		296
		297	/* helper: set scalar to foreign ptr with custom free */
		298	static void
		299	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		300	{
		301	sv_force_normal (sv);
		302
		303	/* we store the length in mg_obj, as namlen is I32 :/ */
		304	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		305	->mg_obj = (SV *)length;
		306
		307	SvUPGRADE (sv, SVt_PV); /* nop... */
		308
		309	if (SvLEN (sv))
		310	Safefree (SvPVX (sv));
		311
		312	SvPVX (sv) = (char *)addr;
		313	SvCUR_set (sv, length);
		314	SvLEN_set (sv, 0);
		315	SvPOK_only (sv);
		316	}
		317
		318	static void
		319	sv_clear_foreign (SV *sv)
		320	{
		321	/* todo: iterate over magic and only free ours, but of course */
		322	/* the perl5porters will call that (correct) behaviour buggy */
		323	sv_unmagic (sv, FOREIGN_MAGIC);
		324	}
		325
		326	/*****************************************************************************/
		327
		328	/* defines all sorts of constants to 0 unless they are already defined */
		329	/* also provides const_iv_ and const_niv_ macros for them */
		330	#include "def0.h"
		331
		332	/*****************************************************************************/
		333
		334	static void
		335	fiemap (eio_req *req)
		336	{
		337	req->result = -1;
		338
		339	#if HAVE_FIEMAP
		340	/* assume some c99 */
		341	struct fiemap *fiemap = 0;
		342	size_t end_offset;
		343	int count = req->int3;
		344
		345	req->flags |= EIO_FLAG_PTR1_FREE;
		346
		347	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		348	/* increase in 3.5kb steps */
		349	if (count < 0)
		350	count = 8;
		351
		352	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		353	errno = ENOMEM;
		354	if (!fiemap)
		355	return;
		356
		357	req->ptr1 = fiemap;
		358
		359	fiemap->fm_start = req->offs;
		360	fiemap->fm_length = req->size;
		361	fiemap->fm_flags = req->int2;
		362	fiemap->fm_extent_count = count;
		363
		364	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		365	return;
		366
		367	if (req->int3 >= 0 /* not autosizing */
		368	|| !fiemap->fm_mapped_extents /* no more extents */
		369	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		370	goto done;
		371
		372	/* else we have to loop -
		373	* it would be tempting (actually I tried that first) to just query the
		374	* number of extents needed, but linux often feels like not returning all
		375	* extents, without telling us it left any out. this complicates
		376	* this quite a bit.
		377	*/
		378
		379	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		380
		381	for (;;)
		382	{
		383	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		384	char scratch[3072];
		385	struct fiemap *incmap = (struct fiemap *)scratch;
		386
		387	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		388	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		389	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		390	incmap->fm_flags = fiemap->fm_flags;
		391	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		392
		393	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		394	return;
		395
		396	if (!incmap->fm_mapped_extents)
		397	goto done;
		398
		399	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		400	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		401	errno = ENOMEM;
		402	if (!fiemap)
		403	return;
		404
		405	req->ptr1 = fiemap;
		406
		407	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		408	{
		409	struct fiemap_extent *e = incmap->fm_extents + count;
		410
		411	if (e->fe_logical + e->fe_length >= end_offset)
		412	goto done;
		413
		414	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		415
		416	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		417	goto done;
		418
		419	}
		420	}
		421
		422	done:
		423	req->result = 0;
		424
		425	#else
		426	errno = ENOSYS;
		427	#endif
		428	}
		429
		430	/*****************************************************************************/
		431
		432	static int close_fd; /* dummy fd to close fds via dup2 */
328		433
329	enum {	434	enum {
330	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	435	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
331	};	436	};
332		437
…		…
371	}	476	}
372		477
373	static SV *	478	static SV *
374	newSVaio_wd (aio_wd wd)	479	newSVaio_wd (aio_wd wd)
375	{	480	{
376	return sv_bless (newRV_noinc (newSViv ((long)wd)), aio_wd_stash);	481	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
377	}	482	}
378		483
379	static aio_req	484	static aio_req
380	SvAIO_REQ (SV *sv)	485	SvAIO_REQ (SV *sv)
381	{	486	{
382	MAGIC *mg;	487	MAGIC *mg;
383		488
384	if (!SvROK (sv)	489	if (!SvROK (sv)
		490	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
385	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	491	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
386	&& SvSTASH (SvRV (sv)) != aio_req_stash	492	&& SvSTASH (SvRV (sv)) != aio_req_stash
387	&& !sv_derived_from (sv, "IO::AIO::REQ")))	493	&& !sv_derived_from (sv, "IO::AIO::REQ")))
388	croak ("object of class IO::AIO::REQ expected");	494	croak ("object of class IO::AIO::REQ expected");
389		495
…		…
394		500
395	static aio_wd	501	static aio_wd
396	SvAIO_WD (SV *sv)	502	SvAIO_WD (SV *sv)
397	{	503	{
398	if (!SvROK (sv)	504	if (!SvROK (sv)
		505	|| SvTYPE (SvRV (sv)) != SVt_PVMG
399	|| SvSTASH (SvRV (sv)) != aio_wd_stash	506	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
400	|| SvTYPE (SvRV (sv)) != SVt_PVMG)
401	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	507	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
402		508
403	return (aio_wd)(long)SvIVX (SvRV (sv));	509	return (aio_wd)(long)SvIVX (SvRV (sv));
		510	}
		511
		512	static SV *
		513	newmortalFH (int fd, int flags)
		514	{
		515	if (fd < 0)
		516	return &PL_sv_undef;
		517
		518	GV *gv = (GV *)sv_newmortal ();
		519	char sym[64];
		520	int symlen;
		521
		522	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		523	gv_init (gv, aio_stash, sym, symlen, 0);
		524
		525	symlen = snprintf (
		526	sym,
		527	sizeof (sym),
		528	"%s&=%d",
		529	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		530	fd
		531	);
		532
		533	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		534	? (SV *)gv : &PL_sv_undef;
404	}	535	}
405		536
406	static void	537	static void
407	aio_grp_feed (aio_req grp)	538	aio_grp_feed (aio_req grp)
408	{	539	{
…		…
471	}	602	}
472		603
473	switch (req->type)	604	switch (req->type)
474	{	605	{
475	case EIO_WD_OPEN:	606	case EIO_WD_OPEN:
476	PUSHs (sv_2mortal (newSVaio_wd (req->wd)));	607	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
477	break;	608	break;
478		609
479	case EIO_READDIR:	610	case EIO_READDIR:
480	{	611	{
481	SV *rv = &PL_sv_undef;	612	SV *rv = &PL_sv_undef;
…		…
536	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	667	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
537	}	668	}
538	break;	669	break;
539		670
540	case EIO_OPEN:	671	case EIO_OPEN:
541	{	672	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
542	/* convert fd to fh */
543	SV *fh = &PL_sv_undef;
544
545	if (req->result >= 0)
546	{
547	GV *gv = (GV *)sv_newmortal ();
548	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
549	char sym [64];
550	int symlen;
551
552	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
553	gv_init (gv, aio_stash, sym, symlen, 0);
554
555	symlen = snprintf (
556	sym,
557	sizeof (sym),
558	"%s&=%d",
559	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
560	(int)req->result
561	);
562
563	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
564	fh = (SV *)gv;
565	}
566
567	PUSHs (fh);
568	}
569	break;	673	break;
570		674
571	case EIO_STATVFS:	675	case EIO_STATVFS:
572	case EIO_FSTATVFS:	676	case EIO_FSTATVFS:
573	{	677	{
…		…
576	#ifndef _WIN32	680	#ifndef _WIN32
577	if (req->result >= 0)	681	if (req->result >= 0)
578	{	682	{
579	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	683	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
580	HV *hv = newHV ();	684	HV *hv = newHV ();
		685	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		686	* chooses to make it a struct.
		687	*/
		688	unsigned long fsid = 0;
		689	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
581		690
582	rv = sv_2mortal (newRV_noinc ((SV *)hv));	691	rv = sv_2mortal (newRV_noinc ((SV *)hv));
583		692
584	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	693	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
585	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	694	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
587	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	696	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
588	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	697	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
589	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	698	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
590	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	699	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
591	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	700	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
592	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	701	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
593	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	702	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
594	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	703	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
595	}	704	}
596	#endif	705	#endif
597		706
…		…
632	if (!(PL_laststatval = req->result))	741	if (!(PL_laststatval = req->result))
633	/* if compilation fails here then perl's Stat_t is not struct _stati64 */	742	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
634	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	743	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
635		744
636	PUSHs (sv_result);	745	PUSHs (sv_result);
		746	break;
		747
		748	case EIO_SEEK:
		749	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
637	break;	750	break;
638		751
639	case EIO_READ:	752	case EIO_READ:
640	{	753	{
641	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	754	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
644	SvSETMAGIC (req->sv2);	757	SvSETMAGIC (req->sv2);
645	PUSHs (sv_result);	758	PUSHs (sv_result);
646	}	759	}
647	break;	760	break;
648		761
		762	case EIO_SLURP:
		763	{
		764	if (req->result >= 0)
		765	{
		766	/* if length was originally not known, we steal the malloc'ed memory */
		767	if (req->flags & EIO_FLAG_PTR2_FREE)
		768	{
		769	req->flags &= ~EIO_FLAG_PTR2_FREE;
		770	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		771	}
		772	else
		773	{
		774	SvCUR_set (req->sv2, req->result);
		775	*SvEND (req->sv2) = 0;
		776	SvPOK_only (req->sv2);
		777	}
		778
		779	SvSETMAGIC (req->sv2);
		780	}
		781
		782	PUSHs (sv_result);
		783	}
		784	break;
		785
		786	case EIO_CUSTOM:
		787	if (req->feed == fiemap)
		788	{
		789	#if HAVE_FIEMAP
		790	if (!req->result)
		791	{
		792	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		793
		794	if (fiemap->fm_extent_count)
		795	{
		796	AV *av = newAV ();
		797	int i;
		798
		799	while (fiemap->fm_mapped_extents)
		800	{
		801	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		802	AV *ext_av = newAV ();
		803
		804	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		805	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		806	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		807	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		808
		809	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		810	}
		811
		812	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		813	}
		814	else
		815	{
		816	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		817	PUSHs (sv_result);
		818	}
		819	}
		820	#endif
		821	}
		822	else
		823	PUSHs (sv_result);
		824	break;
		825
		826	#if 0
		827	case EIO_CLOSE:
		828	PerlIOUnix_refcnt_dec (req->int1);
		829	break;
		830	#endif
		831
649	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	832	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
650	if (req->result > 0)	833	if (req->result > 0)
651	SvIV_set (sv_result, 0);	834	SvIV_set (sv_result, 0);
652	/* FALLTHROUGH */	835	/* FALLTHROUGH */
653		836
…		…
689	SvREFCNT_dec (req->sv2);	872	SvREFCNT_dec (req->sv2);
690	SvREFCNT_dec (req->sv3);	873	SvREFCNT_dec (req->sv3);
691	SvREFCNT_dec (req->sv4);	874	SvREFCNT_dec (req->sv4);
692	SvREFCNT_dec (req->callback);	875	SvREFCNT_dec (req->callback);
693		876
694	Safefree (req);	877	free (req);
695	}	878	}
696		879
697	static void	880	static void
698	req_cancel_subs (aio_req grp)	881	req_cancel_subs (aio_req grp)
699	{	882	{
…		…
718	{	901	{
719	while (eio_nreqs ())	902	while (eio_nreqs ())
720	{	903	{
721	int size;	904	int size;
722		905
723	X_LOCK (reslock);	906	X_LOCK (EIO_POOL->reslock);
724	size = res_queue.size;	907	size = EIO_POOL->res_queue.size;
725	X_UNLOCK (reslock);	908	X_UNLOCK (EIO_POOL->reslock);
726		909
727	if (size)	910	if (size)
728	return;	911	return;
729		912
730	etp_maybe_start_thread ();	913	etp_maybe_start_thread (EIO_POOL);
731		914
732	s_epipe_wait (&respipe);	915	s_epipe_wait (&respipe);
733	}	916	}
734	}	917	}
735		918
…		…
759	croak ("IO::AIO: unable to initialise eio library");	942	croak ("IO::AIO: unable to initialise eio library");
760	}	943	}
761		944
762	/*****************************************************************************/	945	/*****************************************************************************/
763		946
764	#if !_POSIX_MAPPED_FILES
765	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
766	# define munmap(addr,length) (errno = ENOSYS, -1)
767	#endif
768
769	#if !_POSIX_MEMORY_PROTECTION
770	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
771	# define PROT_NONE 0
772	# define PROT_WRITE 0
773	# define MAP_PRIVATE 0
774	# define MAP_SHARED 0
775	# define MAP_FIXED 0
776	#endif
777
778	#define MMAP_MAGIC PERL_MAGIC_ext
779
780	static int ecb_cold
781	mmap_free (pTHX_ SV *sv, MAGIC *mg)
782	{
783	int old_errno = errno;
784	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
785	errno = old_errno;
786
787	mg->mg_obj = 0; /* just in case */
788
789	SvREADONLY_off (sv);
790
791	if (SvPVX (sv) != mg->mg_ptr)
792	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
793
794	SvCUR_set (sv, 0);
795	SvPVX (sv) = 0;
796	SvOK_off (sv);
797
798	return 0;
799	}
800
801	static MGVTBL mmap_vtbl = {
802	0, 0, 0, 0, mmap_free
803	};
804
805	/*****************************************************************************/
806
807	static SV *	947	static SV *
808	get_cb (SV *cb_sv)	948	get_cb (SV *cb_sv)
809	{	949	{
810	SvGETMAGIC (cb_sv);	950	SvGETMAGIC (cb_sv);
811	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	951	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
812	}	952	}
813		953
		954	static aio_req ecb_noinline
		955	dreq (SV *callback)
		956	{
		957	SV *cb_cv;
		958	aio_req req;
		959	int req_pri = next_pri;
		960	next_pri = EIO_PRI_DEFAULT;
		961
		962	cb_cv = get_cb (callback);
		963
		964	req = calloc (sizeof (*req), 1);
		965	if (!req)
		966	croak ("out of memory during eio_req allocation");
		967
		968	req->callback = SvREFCNT_inc (cb_cv);
		969	req->pri = req_pri;
		970
		971	return req;
		972	}
		973
814	#define dREQ \	974	#define dREQ \
815	SV *cb_cv; \	975	aio_req req = dreq (callback); \
816	aio_req req; \
817	int req_pri = next_pri; \
818	next_pri = EIO_PRI_DEFAULT; \
819	\
820	cb_cv = get_cb (callback); \
821	\
822	Newz (0, req, 1, eio_req); \
823	if (!req) \
824	croak ("out of memory during eio_req allocation"); \
825	\
826	req->callback = SvREFCNT_inc (cb_cv); \
827	req->pri = req_pri
828		976
829	#define REQ_SEND \	977	#define REQ_SEND \
830	PUTBACK; \	978	PUTBACK; \
831	req_submit (req); \	979	req_submit (req); \
832	SPAGAIN; \	980	SPAGAIN; \
…		…
837	ecb_inline void	985	ecb_inline void
838	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)	986	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
839	{	987	{
840	if (expect_false (SvROK (path)))	988	if (expect_false (SvROK (path)))
841	{	989	{
842	AV *av = (AV *)SvRV (path);	990	SV *rv = SvRV (path);
843	SV *wdob;	991	SV *wdob;
844		992
845	if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)	993	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
846	croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");
847
848	path = AvARRAY (av)[1];
849	wdob = AvARRAY (av)[0];
850
851	if (SvOK (wdob))
852	{	994	{
		995	path = AvARRAY (rv)[1];
		996	wdob = AvARRAY (rv)[0];
		997
		998	if (SvOK (wdob))
		999	{
853	*wd = SvAIO_WD (wdob);	1000	*wd = SvAIO_WD (wdob);
854	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));	1001	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		1002	}
		1003	else
		1004	*wd = EIO_INVALID_WD;
		1005	}
		1006	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		1007	{
		1008	*wd = (aio_wd)(long)SvIVX (rv);
		1009	*wdsv = SvREFCNT_inc_NN (rv);
		1010	*ptr = ".";
		1011	return; /* path set to "." */
855	}	1012	}
856	else	1013	else
857	*wd = EIO_INVALID_WD;	1014	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
858	}	1015	}
859		1016
860	*pathsv = newSVsv (path);	1017	*pathsv = newSVsv (path);
861	*ptr = SvPVbyte_nolen (*pathsv);	1018	*ptr = SvPVbyte_nolen (*pathsv);
862	}	1019	}
…		…
887	req_set_path1 (req, fh_or_path);	1044	req_set_path1 (req, fh_or_path);
888	break;	1045	break;
889	}	1046	}
890	}	1047	}
891		1048
		1049	/*****************************************************************************/
		1050
		1051	static void
		1052	ts_set (struct timespec *ts, NV value)
		1053	{
		1054	ts->tv_sec = value;
		1055	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1056	}
		1057
		1058	static NV
		1059	ts_get (const struct timespec *ts)
		1060	{
		1061	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1062	}
		1063
		1064	/*****************************************************************************/
		1065
892	XS(boot_IO__AIO) ecb_cold;	1066	XS(boot_IO__AIO) ecb_cold;
893		1067
894	MODULE = IO::AIO PACKAGE = IO::AIO	1068	MODULE = IO::AIO PACKAGE = IO::AIO
895		1069
896	PROTOTYPES: ENABLE	1070	PROTOTYPES: ENABLE
…		…
902	IV iv;	1076	IV iv;
903	} *civ, const_iv[] = {	1077	} *civ, const_iv[] = {
904	# define const_niv(name, value) { # name, (IV) value },	1078	# define const_niv(name, value) { # name, (IV) value },
905	# define const_iv(name) { # name, (IV) name },	1079	# define const_iv(name) { # name, (IV) name },
906	# define const_eio(name) { # name, (IV) EIO_ ## name },	1080	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1081
		1082	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1083	/* the first block can be undef if missing */
		1084	const_iv (ENOSYS)
907	const_iv (EXDEV)	1085	const_iv (EXDEV)
908	const_iv (ENOSYS)	1086	const_iv (EBADR)
		1087
		1088	/* for lseek */
		1089	const_iv (SEEK_DATA)
		1090	const_iv (SEEK_HOLE)
		1091
		1092	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1093	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1094	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1095	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1096	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1097	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1098
		1099	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1100	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1101	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1102	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1103	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1104
		1105	/* the second block will be 0 when missing */
		1106	const_iv (O_ACCMODE)
		1107
909	const_iv (O_RDONLY)	1108	const_iv (O_RDONLY)
910	const_iv (O_WRONLY)	1109	const_iv (O_WRONLY)
911	const_iv (O_RDWR)	1110	const_iv (O_RDWR)
912	const_iv (O_CREAT)	1111	const_iv (O_CREAT)
913	const_iv (O_TRUNC)	1112	const_iv (O_TRUNC)
…		…
926	const_iv (O_SEARCH)	1125	const_iv (O_SEARCH)
927	const_iv (O_DIRECTORY)	1126	const_iv (O_DIRECTORY)
928	const_iv (O_DSYNC)	1127	const_iv (O_DSYNC)
929	const_iv (O_RSYNC)	1128	const_iv (O_RSYNC)
930	const_iv (O_SYNC)	1129	const_iv (O_SYNC)
		1130	const_iv (O_PATH)
		1131	const_iv (O_TMPFILE)
931	const_iv (O_TTY_INIT)	1132	const_iv (O_TTY_INIT)
932		1133
933	const_iv (S_IFIFO)	1134	const_iv (S_IFIFO)
934	const_iv (S_IFCHR)	1135	const_iv (S_IFCHR)
935	const_iv (S_IFBLK)	1136	const_iv (S_IFBLK)
…		…
937	const_iv (S_IFREG)	1138	const_iv (S_IFREG)
938	const_iv (S_IFDIR)	1139	const_iv (S_IFDIR)
939	const_iv (S_IFWHT)	1140	const_iv (S_IFWHT)
940	const_iv (S_IFSOCK)	1141	const_iv (S_IFSOCK)
941	const_iv (S_IFMT)	1142	const_iv (S_IFMT)
942
943	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
944	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
945	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
946	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
947	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
948	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
949
950	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
951	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
952	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
953	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
954	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
955		1143
956	const_iv (ST_RDONLY)	1144	const_iv (ST_RDONLY)
957	const_iv (ST_NOSUID)	1145	const_iv (ST_NOSUID)
958	const_iv (ST_NODEV)	1146	const_iv (ST_NODEV)
959	const_iv (ST_NOEXEC)	1147	const_iv (ST_NOEXEC)
…		…
969	const_iv (PROT_NONE)	1157	const_iv (PROT_NONE)
970	const_iv (PROT_EXEC)	1158	const_iv (PROT_EXEC)
971	const_iv (PROT_READ)	1159	const_iv (PROT_READ)
972	const_iv (PROT_WRITE)	1160	const_iv (PROT_WRITE)
973		1161
974	/*const_iv (MAP_FIXED)*/
975	const_iv (MAP_PRIVATE)	1162	const_iv (MAP_PRIVATE)
976	const_iv (MAP_SHARED)	1163	const_iv (MAP_SHARED)
		1164	const_iv (MAP_FIXED)
977	const_iv (MAP_ANONYMOUS)	1165	const_iv (MAP_ANONYMOUS)
978		1166
979	/* linuxish */	1167	/* linuxish */
980	const_iv (MAP_HUGETLB)
981	const_iv (MAP_LOCKED)	1168	const_iv (MAP_LOCKED)
982	const_iv (MAP_NORESERVE)	1169	const_iv (MAP_NORESERVE)
983	const_iv (MAP_POPULATE)	1170	const_iv (MAP_POPULATE)
984	const_iv (MAP_NONBLOCK)	1171	const_iv (MAP_NONBLOCK)
		1172	const_iv (MAP_GROWSDOWN)
		1173	const_iv (MAP_32BIT)
		1174	const_iv (MAP_HUGETLB)
		1175	const_iv (MAP_STACK)
		1176
		1177	const_iv (MREMAP_MAYMOVE)
		1178	const_iv (MREMAP_FIXED)
		1179
		1180	const_iv (F_DUPFD_CLOEXEC)
		1181
		1182	const_iv (MSG_CMSG_CLOEXEC)
		1183	const_iv (SOCK_CLOEXEC)
		1184
		1185	const_iv (F_OFD_GETLK)
		1186	const_iv (F_OFD_SETLK)
		1187	const_iv (F_OFD_GETLKW)
		1188
		1189	const_iv (FIFREEZE)
		1190	const_iv (FITHAW)
		1191	const_iv (FITRIM)
		1192	const_iv (FICLONE)
		1193	const_iv (FICLONERANGE)
		1194	const_iv (FIDEDUPERANGE)
		1195
		1196	const_iv (FS_IOC_GETFLAGS)
		1197	const_iv (FS_IOC_SETFLAGS)
		1198	const_iv (FS_IOC_GETVERSION)
		1199	const_iv (FS_IOC_SETVERSION)
		1200	const_iv (FS_IOC_FIEMAP)
		1201	const_iv (FS_IOC_FSGETXATTR)
		1202	const_iv (FS_IOC_FSSETXATTR)
		1203	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1204	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1205	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1206
		1207	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1208
		1209	const_iv (FS_SECRM_FL)
		1210	const_iv (FS_UNRM_FL)
		1211	const_iv (FS_COMPR_FL)
		1212	const_iv (FS_SYNC_FL)
		1213	const_iv (FS_IMMUTABLE_FL)
		1214	const_iv (FS_APPEND_FL)
		1215	const_iv (FS_NODUMP_FL)
		1216	const_iv (FS_NOATIME_FL)
		1217	const_iv (FS_DIRTY_FL)
		1218	const_iv (FS_COMPRBLK_FL)
		1219	const_iv (FS_NOCOMP_FL)
		1220	const_iv (FS_ENCRYPT_FL)
		1221	const_iv (FS_BTREE_FL)
		1222	const_iv (FS_INDEX_FL)
		1223	const_iv (FS_JOURNAL_DATA_FL)
		1224	const_iv (FS_NOTAIL_FL)
		1225	const_iv (FS_DIRSYNC_FL)
		1226	const_iv (FS_TOPDIR_FL)
		1227	const_iv (FS_FL_USER_MODIFIABLE)
		1228
		1229	const_iv (FS_XFLAG_REALTIME)
		1230	const_iv (FS_XFLAG_PREALLOC)
		1231	const_iv (FS_XFLAG_IMMUTABLE)
		1232	const_iv (FS_XFLAG_APPEND)
		1233	const_iv (FS_XFLAG_SYNC)
		1234	const_iv (FS_XFLAG_NOATIME)
		1235	const_iv (FS_XFLAG_NODUMP)
		1236	const_iv (FS_XFLAG_RTINHERIT)
		1237	const_iv (FS_XFLAG_PROJINHERIT)
		1238	const_iv (FS_XFLAG_NOSYMLINKS)
		1239	const_iv (FS_XFLAG_EXTSIZE)
		1240	const_iv (FS_XFLAG_EXTSZINHERIT)
		1241	const_iv (FS_XFLAG_NODEFRAG)
		1242	const_iv (FS_XFLAG_FILESTREAM)
		1243	const_iv (FS_XFLAG_DAX)
		1244	const_iv (FS_XFLAG_HASATTR)
		1245
		1246	const_iv (FIEMAP_FLAG_SYNC)
		1247	const_iv (FIEMAP_FLAG_XATTR)
		1248	const_iv (FIEMAP_FLAGS_COMPAT)
		1249	const_iv (FIEMAP_EXTENT_LAST)
		1250	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1251	const_iv (FIEMAP_EXTENT_DELALLOC)
		1252	const_iv (FIEMAP_EXTENT_ENCODED)
		1253	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1254	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1255	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1256	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1257	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1258	const_iv (FIEMAP_EXTENT_MERGED)
		1259	const_iv (FIEMAP_EXTENT_SHARED)
		1260
		1261	const_iv (SPLICE_F_MOVE)
		1262	const_iv (SPLICE_F_NONBLOCK)
		1263	const_iv (SPLICE_F_MORE)
		1264	const_iv (SPLICE_F_GIFT)
		1265
		1266	const_iv (EFD_CLOEXEC)
		1267	const_iv (EFD_NONBLOCK)
		1268	const_iv (EFD_SEMAPHORE)
		1269
		1270	const_iv (CLOCK_REALTIME)
		1271	const_iv (CLOCK_MONOTONIC)
		1272	const_iv (CLOCK_BOOTTIME)
		1273	const_iv (CLOCK_REALTIME_ALARM)
		1274	const_iv (CLOCK_BOOTTIME_ALARM)
		1275
		1276	const_iv (TFD_NONBLOCK)
		1277	const_iv (TFD_CLOEXEC)
		1278
		1279	const_iv (TFD_TIMER_ABSTIME)
		1280	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1281
		1282	/* these are libeio constants, and are independent of gendef0 */
		1283	const_eio (SEEK_SET)
		1284	const_eio (SEEK_CUR)
		1285	const_eio (SEEK_END)
985		1286
986	const_eio (MCL_FUTURE)	1287	const_eio (MCL_FUTURE)
987	const_eio (MCL_CURRENT)	1288	const_eio (MCL_CURRENT)
		1289	const_eio (MCL_ONFAULT)
988		1290
989	const_eio (MS_ASYNC)	1291	const_eio (MS_ASYNC)
990	const_eio (MS_INVALIDATE)	1292	const_eio (MS_INVALIDATE)
991	const_eio (MS_SYNC)	1293	const_eio (MS_SYNC)
992		1294
…		…
995	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1297	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
996	const_eio (SYNC_FILE_RANGE_WRITE)	1298	const_eio (SYNC_FILE_RANGE_WRITE)
997	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1299	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
998		1300
999	const_eio (FALLOC_FL_KEEP_SIZE)	1301	const_eio (FALLOC_FL_KEEP_SIZE)
		1302	const_eio (FALLOC_FL_PUNCH_HOLE)
		1303	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1304	const_eio (FALLOC_FL_ZERO_RANGE)
		1305	const_eio (FALLOC_FL_INSERT_RANGE)
		1306	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1307
		1308	const_eio (RENAME_NOREPLACE)
		1309	const_eio (RENAME_EXCHANGE)
		1310	const_eio (RENAME_WHITEOUT)
1000		1311
1001	const_eio (READDIR_DENTS)	1312	const_eio (READDIR_DENTS)
1002	const_eio (READDIR_DIRS_FIRST)	1313	const_eio (READDIR_DIRS_FIRST)
1003	const_eio (READDIR_STAT_ORDER)	1314	const_eio (READDIR_STAT_ORDER)
1004	const_eio (READDIR_FOUND_UNKNOWN)	1315	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1022	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1333	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1023	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));	1334	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1024		1335
1025	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1336	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1026		1337
		1338	/* allocate dummy pipe fd for aio_close */
		1339	{
		1340	int pipefd [2];
		1341
		1342	if (
		1343	#ifdef _WIN32
		1344	_pipe (pipefd, 1, _O_BINARY) < 0
		1345	#else
		1346	pipe (pipefd) < 0
		1347	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1348	#endif
		1349	|| close (pipefd [1]) < 0
		1350	)
		1351	croak ("IO::AIO: unable to create dummy pipe for aio_close");
		1352
		1353	close_fd = pipefd [0];
		1354	}
		1355
1027	reinit ();	1356	reinit ();
1028	}	1357	}
1029		1358
1030	void	1359	void
1031	reinit ()	1360	reinit ()
…		…
1072	PROTOTYPE: $	1401	PROTOTYPE: $
1073	CODE:	1402	CODE:
1074	max_outstanding = maxreqs;	1403	max_outstanding = maxreqs;
1075		1404
1076	void	1405	void
1077	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1406	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1078	PPCODE:	1407	PPCODE:
1079	{	1408	{
1080	dREQ;	1409	dREQ;
1081		1410
1082	req->type = EIO_WD_OPEN;	1411	req->type = EIO_WD_OPEN;
…		…
1084		1413
1085	REQ_SEND;	1414	REQ_SEND;
1086	}	1415	}
1087		1416
1088	void	1417	void
1089	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1418	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1090	PPCODE:	1419	PPCODE:
1091	{	1420	{
1092	dREQ;	1421	dREQ;
1093		1422
1094	req->type = EIO_OPEN;	1423	req->type = EIO_OPEN;
…		…
1098		1427
1099	REQ_SEND;	1428	REQ_SEND;
1100	}	1429	}
1101		1430
1102	void	1431	void
1103	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1432	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1104	ALIAS:	1433	ALIAS:
1105	aio_fsync = EIO_FSYNC	1434	aio_fsync = EIO_FSYNC
1106	aio_fdatasync = EIO_FDATASYNC	1435	aio_fdatasync = EIO_FDATASYNC
1107	aio_syncfs = EIO_SYNCFS	1436	aio_syncfs = EIO_SYNCFS
1108	PPCODE:	1437	PPCODE:
1109	{	1438	{
1110	int fd = s_fileno_croak (fh, 0);	1439	int fd = s_fileno_croak (fh, 0);
1111	dREQ;	1440	dREQ;
1112		1441
1113	req->type = ix;	1442	req->type = ix;
1114	req->sv1 = newSVsv (fh);	1443	req->sv1 = newSVsv (fh);
1115	req->int1 = fd;	1444	req->int1 = fd;
1116		1445
1117	REQ_SEND (req);	1446	REQ_SEND;
1118	}	1447	}
1119		1448
1120	void	1449	void
1121	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1450	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1122	PPCODE:	1451	PPCODE:
1123	{	1452	{
1124	int fd = s_fileno_croak (fh, 0);	1453	int fd = s_fileno_croak (fh, 0);
1125	dREQ;	1454	dREQ;
1126		1455
1127	req->type = EIO_SYNC_FILE_RANGE;	1456	req->type = EIO_SYNC_FILE_RANGE;
1128	req->sv1 = newSVsv (fh);	1457	req->sv1 = newSVsv (fh);
1129	req->int1 = fd;	1458	req->int1 = fd;
1130	req->offs = offset;	1459	req->offs = offset;
1131	req->size = nbytes;	1460	req->size = nbytes;
1132	req->int2 = flags;	1461	req->int2 = flags;
1133		1462
1134	REQ_SEND (req);	1463	REQ_SEND;
1135	}	1464	}
1136		1465
1137	void	1466	void
1138	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1467	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1139	PPCODE:	1468	PPCODE:
1140	{	1469	{
1141	int fd = s_fileno_croak (fh, 0);	1470	int fd = s_fileno_croak (fh, 0);
1142	dREQ;	1471	dREQ;
1143		1472
1144	req->type = EIO_FALLOCATE;	1473	req->type = EIO_FALLOCATE;
1145	req->sv1 = newSVsv (fh);	1474	req->sv1 = newSVsv (fh);
1146	req->int1 = fd;	1475	req->int1 = fd;
1147	req->int2 = mode;	1476	req->int2 = mode;
1148	req->offs = offset;	1477	req->offs = offset;
1149	req->size = len;	1478	req->size = len;
1150		1479
1151	REQ_SEND (req);	1480	REQ_SEND;
1152	}	1481	}
1153		1482
1154	void	1483	void
1155	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1484	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1156	PPCODE:	1485	PPCODE:
1157	{	1486	{
1158	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1159	int fd = s_fileno_croak (fh, 0);	1487	int fd = s_fileno_croak (fh, 0);
1160	dREQ;	1488	dREQ;
		1489	#if 0
		1490	/* partially duplicate logic in s_fileno */
		1491	SvGETMAGIC (fh);
1161		1492
1162	if (expect_false (close_fd < 0))	1493	if (SvROK (fh))
		1494	{
		1495	fh = SvRV (fh);
		1496	SvGETMAGIC (fh);
		1497	}
		1498
		1499	if (SvTYPE (fh) == SVt_PVGV)
1163	{	1500	{
1164	int pipefd [2];	1501	/* perl filehandle */
		1502	PerlIOUnix_refcnt_inc (fd);
		1503	do_close ((GV *)fh, 1);
1165		1504
1166	if (	1505	req->type = EIO_CLOSE;
1167	#ifdef _WIN32	1506	req->int1 = fd;
1168	_pipe (pipefd, 1, _O_BINARY) < 0	1507	/*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1169	#else
1170	pipe (pipefd) < 0
1171	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1172	#endif
1173	|| close (pipefd [1]) < 0
1174	)
1175	abort (); /*D*/
1176
1177	close_fd = pipefd [0];
1178	}	1508	}
1179		1509	else
		1510	#endif
		1511	{
		1512	/* fd number */
1180	req->type = EIO_DUP2;	1513	req->type = EIO_DUP2;
1181	req->int1 = close_fd;	1514	req->int1 = close_fd;
		1515	req->sv2 = newSVsv (fh);
		1516	req->int2 = fd;
		1517	}
		1518
		1519	REQ_SEND;
		1520	}
		1521
		1522	void
		1523	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1524	PPCODE:
		1525	{
		1526	int fd = s_fileno_croak (fh, 0);
		1527	dREQ;
		1528
		1529	req->type = EIO_SEEK;
1182	req->sv2 = newSVsv (fh);	1530	req->sv1 = newSVsv (fh);
1183	req->int2 = fd;	1531	req->int1 = fd;
		1532	req->offs = SvVAL64 (offset);
		1533	req->int2 = whence;
1184		1534
1185	REQ_SEND (req);	1535	REQ_SEND;
1186	}	1536	}
1187		1537
1188	void	1538	void
1189	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1539	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1190	ALIAS:	1540	ALIAS:
1191	aio_read = EIO_READ	1541	aio_read = EIO_READ
1192	aio_write = EIO_WRITE	1542	aio_write = EIO_WRITE
1193	PPCODE:	1543	PPCODE:
1194	{	1544	{
…		…
1210	len = svlen - dataoffset;	1560	len = svlen - dataoffset;
1211	}	1561	}
1212	else	1562	else
1213	{	1563	{
1214	/* read: check type and grow scalar as necessary */	1564	/* read: check type and grow scalar as necessary */
1215	SvUPGRADE (data, SVt_PV);	1565	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1216	svptr = SvGROW (data, len + dataoffset + 1);	1566	svptr = sv_grow (data, len + dataoffset + 1);
		1567	else if (SvCUR (data) < len + dataoffset)
		1568	croak ("length + dataoffset outside of scalar, and cannot grow");
1217	}	1569	}
1218		1570
1219	{	1571	{
1220	dREQ;	1572	dREQ;
1221		1573
…		…
1237	REQ_SEND;	1589	REQ_SEND;
1238	}	1590	}
1239	}	1591	}
1240		1592
1241	void	1593	void
		1594	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1595	ALIAS:
		1596	aio_ioctl = EIO_IOCTL
		1597	aio_fcntl = EIO_FCNTL
		1598	PPCODE:
		1599	{
		1600	int fd = s_fileno_croak (fh, 0);
		1601	char *svptr;
		1602
		1603	if (SvPOK (arg) || !SvNIOK (arg))
		1604	{
		1605	STRLEN svlen;
		1606	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1607	#ifdef IOCPARM_LEN
		1608	STRLEN need = IOCPARM_LEN (request);
		1609	#else
		1610	STRLEN need = 256;
		1611	#endif
		1612
		1613	if (svlen < need)
		1614	svptr = SvGROW (arg, need);
		1615	}
		1616	else
		1617	svptr = (char *)SvIV (arg);
		1618
		1619	{
		1620	dREQ;
		1621
		1622	req->type = ix;
		1623	req->sv1 = newSVsv (fh);
		1624	req->int1 = fd;
		1625	req->int2 = (long)request;
		1626	req->sv2 = SvREFCNT_inc (arg);
		1627	req->ptr2 = svptr;
		1628
		1629	REQ_SEND;
		1630	}
		1631	}
		1632
		1633	void
1242	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1634	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1243	ALIAS:	1635	ALIAS:
1244	aio_readlink = EIO_READLINK	1636	aio_readlink = EIO_READLINK
1245	aio_realpath = EIO_REALPATH	1637	aio_realpath = EIO_REALPATH
1246	PPCODE:	1638	PPCODE:
1247	{	1639	{
…		…
1252		1644
1253	REQ_SEND;	1645	REQ_SEND;
1254	}	1646	}
1255		1647
1256	void	1648	void
1257	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1649	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1258	PPCODE:	1650	PPCODE:
1259	{	1651	{
1260	int ifd = s_fileno_croak (in_fh , 0);	1652	int ifd = s_fileno_croak (in_fh , 0);
1261	int ofd = s_fileno_croak (out_fh, 1);	1653	int ofd = s_fileno_croak (out_fh, 1);
1262	dREQ;	1654	dREQ;
1263		1655
1264	req->type = EIO_SENDFILE;	1656	req->type = EIO_SENDFILE;
1265	req->sv1 = newSVsv (out_fh);	1657	req->sv1 = newSVsv (out_fh);
1266	req->int1 = ofd;	1658	req->int1 = ofd;
…		…
1271		1663
1272	REQ_SEND;	1664	REQ_SEND;
1273	}	1665	}
1274		1666
1275	void	1667	void
1276	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1668	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1277	PPCODE:	1669	PPCODE:
1278	{	1670	{
1279	int fd = s_fileno_croak (fh, 0);	1671	int fd = s_fileno_croak (fh, 0);
1280	dREQ;	1672	dREQ;
1281		1673
1282	req->type = EIO_READAHEAD;	1674	req->type = EIO_READAHEAD;
1283	req->sv1 = newSVsv (fh);	1675	req->sv1 = newSVsv (fh);
1284	req->int1 = fd;	1676	req->int1 = fd;
…		…
1287		1679
1288	REQ_SEND;	1680	REQ_SEND;
1289	}	1681	}
1290		1682
1291	void	1683	void
1292	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1684	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1293	ALIAS:	1685	ALIAS:
1294	aio_stat = EIO_STAT	1686	aio_stat = EIO_STAT
1295	aio_lstat = EIO_LSTAT	1687	aio_lstat = EIO_LSTAT
1296	aio_statvfs = EIO_STATVFS	1688	aio_statvfs = EIO_STATVFS
1297	PPCODE:	1689	PPCODE:
1298	{	1690	{
1299	dREQ;	1691	dREQ;
1300		1692
1301	req->sv1 = newSVsv (fh_or_path);
1302	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1693	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
		1694
1303	REQ_SEND;	1695	REQ_SEND;
1304	}	1696	}
		1697
		1698	void
		1699	st_xtime ()
		1700	ALIAS:
		1701	st_atime = 0x01
		1702	st_mtime = 0x02
		1703	st_ctime = 0x04
		1704	st_btime = 0x08
		1705	st_xtime = 0x0f
		1706	PPCODE:
		1707	EXTEND (SP, 4);
		1708	if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1709	if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1710	if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1711	if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
		1712
		1713	void
		1714	st_xtimensec ()
		1715	ALIAS:
		1716	st_atimensec = 0x01
		1717	st_mtimensec = 0x02
		1718	st_ctimensec = 0x04
		1719	st_btimensec = 0x08
		1720	st_xtimensec = 0x0f
		1721	st_btimesec = 0x10
		1722	st_gen = 0x20
		1723	PPCODE:
		1724	EXTEND (SP, 4);
		1725	if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
		1726	if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
		1727	if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
		1728	if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
		1729	if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
		1730	if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1305		1731
1306	UV	1732	UV
1307	major (UV dev)	1733	major (UV dev)
1308	ALIAS:	1734	ALIAS:
1309	minor = 1	1735	minor = 1
1310	CODE:	1736	CODE:
1311	RETVAL = ix ? major (dev) : minor (dev);	1737	RETVAL = ix ? minor (dev) : major (dev);
1312	OUTPUT:	1738	OUTPUT:
1313	RETVAL	1739	RETVAL
1314		1740
1315	UV	1741	UV
1316	makedev (UV maj, UV min)	1742	makedev (UV maj, UV min)
…		…
1318	RETVAL = makedev (maj, min);	1744	RETVAL = makedev (maj, min);
1319	OUTPUT:	1745	OUTPUT:
1320	RETVAL	1746	RETVAL
1321		1747
1322	void	1748	void
1323	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1749	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1324	PPCODE:	1750	PPCODE:
1325	{	1751	{
1326	dREQ;	1752	dREQ;
1327		1753
1328	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1754	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1331		1757
1332	REQ_SEND;	1758	REQ_SEND;
1333	}	1759	}
1334		1760
1335	void	1761	void
1336	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1762	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1337	PPCODE:	1763	PPCODE:
1338	{	1764	{
1339	dREQ;	1765	dREQ;
1340		1766
1341	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1767	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1343		1769
1344	REQ_SEND;	1770	REQ_SEND;
1345	}	1771	}
1346		1772
1347	void	1773	void
1348	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1774	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1349	PPCODE:	1775	PPCODE:
1350	{	1776	{
1351	dREQ;	1777	dREQ;
1352		1778
1353	req->int2 = mode;	1779	req->int2 = mode;
…		…
1355		1781
1356	REQ_SEND;	1782	REQ_SEND;
1357	}	1783	}
1358		1784
1359	void	1785	void
1360	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1786	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1361	PPCODE:	1787	PPCODE:
1362	{	1788	{
1363	dREQ;	1789	dREQ;
1364		1790
1365	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1791	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1368		1794
1369	REQ_SEND;	1795	REQ_SEND;
1370	}	1796	}
1371		1797
1372	void	1798	void
1373	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1799	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1374	PPCODE:	1800	PPCODE:
1375	{	1801	{
1376	dREQ;	1802	dREQ;
1377		1803
1378	req->type = EIO_READDIR;	1804	req->type = EIO_READDIR;
…		…
1385		1811
1386	REQ_SEND;	1812	REQ_SEND;
1387	}	1813	}
1388		1814
1389	void	1815	void
1390	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1816	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1391	PPCODE:	1817	PPCODE:
1392	{	1818	{
1393	dREQ;	1819	dREQ;
1394		1820
1395	req->type = EIO_MKDIR;	1821	req->type = EIO_MKDIR;
…		…
1398		1824
1399	REQ_SEND;	1825	REQ_SEND;
1400	}	1826	}
1401		1827
1402	void	1828	void
1403	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1829	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1404	ALIAS:	1830	ALIAS:
1405	aio_unlink = EIO_UNLINK	1831	aio_unlink = EIO_UNLINK
1406	aio_rmdir = EIO_RMDIR	1832	aio_rmdir = EIO_RMDIR
1407	aio_readdir = EIO_READDIR	1833	aio_readdir = EIO_READDIR
1408	PPCODE:	1834	PPCODE:
…		…
1414		1840
1415	REQ_SEND;	1841	REQ_SEND;
1416	}	1842	}
1417		1843
1418	void	1844	void
1419	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1845	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1420	ALIAS:	1846	ALIAS:
1421	aio_link = EIO_LINK	1847	aio_link = EIO_LINK
1422	aio_symlink = EIO_SYMLINK	1848	aio_symlink = EIO_SYMLINK
1423	aio_rename = EIO_RENAME	1849	aio_rename = EIO_RENAME
1424	PPCODE:	1850	PPCODE:
1425	{	1851	{
		1852	eio_wd wd2 = 0;
1426	dREQ;	1853	dREQ;
1427	eio_wd wd2 = 0;
1428		1854
1429	req->type = ix;	1855	req->type = ix;
1430	req_set_path1 (req, oldpath);	1856	req_set_path1 (req, oldpath);
1431	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);	1857	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1432	req->int3 = (long)wd2;	1858	req->int3 = (long)wd2;
1433		1859
1434	REQ_SEND;	1860	REQ_SEND;
1435	}	1861	}
1436		1862
1437	void	1863	void
		1864	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1865	PPCODE:
		1866	{
		1867	eio_wd wd2 = 0;
		1868	dREQ;
		1869
		1870	req->type = EIO_RENAME;
		1871	req_set_path1 (req, oldpath);
		1872	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1873	req->int2 = flags;
		1874	req->int3 = (long)wd2;
		1875
		1876	REQ_SEND;
		1877	}
		1878
		1879	void
1438	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1880	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1439	PPCODE:	1881	PPCODE:
1440	{	1882	{
1441	dREQ;	1883	dREQ;
1442		1884
1443	req->type = EIO_MKNOD;	1885	req->type = EIO_MKNOD;
…		…
1447		1889
1448	REQ_SEND;	1890	REQ_SEND;
1449	}	1891	}
1450		1892
1451	void	1893	void
1452	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1894	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1453	ALIAS:	1895	ALIAS:
1454	aio_mtouch = EIO_MTOUCH	1896	aio_mtouch = EIO_MTOUCH
1455	aio_msync = EIO_MSYNC	1897	aio_msync = EIO_MSYNC
1456	PPCODE:	1898	PPCODE:
1457	{	1899	{
1458	STRLEN svlen;	1900	STRLEN svlen;
1459	char *svptr = SvPVbyte (data, svlen);	1901	char *svptr = SvPVbyte (data, svlen);
1460	UV len = SvUV (length);	1902	UV len = SvUV (length);
		1903
		1904	if (flags < 0)
		1905	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1461		1906
1462	if (offset < 0)	1907	if (offset < 0)
1463	offset += svlen;	1908	offset += svlen;
1464		1909
1465	if (offset < 0 || offset > svlen)	1910	if (offset < 0 || offset > svlen)
…		…
1480	REQ_SEND;	1925	REQ_SEND;
1481	}	1926	}
1482	}	1927	}
1483		1928
1484	void	1929	void
1485	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1930	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1486	PPCODE:	1931	PPCODE:
1487	{	1932	{
1488	STRLEN svlen;	1933	STRLEN svlen;
1489	char *svptr = SvPVbyte (data, svlen);	1934	char *svptr = SvPVbyte (data, svlen);
1490	UV len = SvUV (length);	1935	UV len = SvUV (length);
…		…
1509	REQ_SEND;	1954	REQ_SEND;
1510	}	1955	}
1511	}	1956	}
1512		1957
1513	void	1958	void
1514	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1959	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1515	PPCODE:	1960	PPCODE:
1516	{	1961	{
1517	dREQ;	1962	dREQ;
1518		1963
1519	req->type = EIO_MLOCKALL;	1964	req->type = EIO_MLOCKALL;
…		…
1521		1966
1522	REQ_SEND;	1967	REQ_SEND;
1523	}	1968	}
1524		1969
1525	void	1970	void
		1971	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1972	PPCODE:
		1973	{
		1974	int fd = s_fileno_croak (fh, 0);
		1975	dREQ;
		1976
		1977	req->type = EIO_CUSTOM;
		1978	req->sv1 = newSVsv (fh);
		1979	req->int1 = fd;
		1980
		1981	req->feed = fiemap;
		1982	#if HAVE_FIEMAP
		1983	/* keep our fingers crossed that the next two types are 64 bit */
		1984	req->offs = start;
		1985	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1986	req->int2 = flags;
		1987	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1988	#endif
		1989
		1990	REQ_SEND;
		1991	}
		1992
		1993	void
		1994	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1995	PPCODE:
		1996	{
		1997	char *svptr = 0;
		1998
		1999	sv_clear_foreign (data);
		2000
		2001	if (length) /* known length, directly read into scalar */
		2002	{
		2003	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		2004	svptr = sv_grow (data, length + 1);
		2005	else if (SvCUR (data) < length)
		2006	croak ("length outside of scalar, and cannot grow");
		2007	else
		2008	svptr = SvPVbyte_nolen (data);
		2009	}
		2010
		2011	{
		2012	dREQ;
		2013
		2014	req->type = EIO_SLURP;
		2015	req_set_path1 (req, pathname);
		2016	req->offs = offset;
		2017	req->size = length;
		2018	req->sv2 = SvREFCNT_inc (data);
		2019	req->ptr2 = svptr;
		2020
		2021	if (!SvREADONLY (data))
		2022	{
		2023	SvREADONLY_on (data);
		2024	req->flags |= FLAG_SV2_RO_OFF;
		2025	}
		2026
		2027	REQ_SEND;
		2028	}
		2029	}
		2030
		2031	void
1526	aio_busy (double delay, SV *callback=&PL_sv_undef)	2032	aio_busy (double delay, SV *callback = &PL_sv_undef)
1527	PPCODE:	2033	PPCODE:
1528	{	2034	{
1529	dREQ;	2035	dREQ;
1530		2036
1531	req->type = EIO_BUSY;	2037	req->type = EIO_BUSY;
…		…
1533		2039
1534	REQ_SEND;	2040	REQ_SEND;
1535	}	2041	}
1536		2042
1537	void	2043	void
1538	aio_group (SV *callback=&PL_sv_undef)	2044	aio_group (SV *callback = &PL_sv_undef)
1539	PPCODE:	2045	PPCODE:
1540	{	2046	{
1541	dREQ;	2047	dREQ;
1542		2048
1543	req->type = EIO_GROUP;	2049	req->type = EIO_GROUP;
1544		2050
		2051	PUTBACK;
1545	req_submit (req);	2052	req_submit (req);
		2053	SPAGAIN;
		2054
1546	XPUSHs (req_sv (req, aio_grp_stash));	2055	XPUSHs (req_sv (req, aio_grp_stash));
1547	}	2056	}
1548		2057
1549	void	2058	void
1550	aio_nop (SV *callback=&PL_sv_undef)	2059	aio_nop (SV *callback = &PL_sv_undef)
1551	ALIAS:	2060	ALIAS:
1552	aio_nop = EIO_NOP	2061	aio_nop = EIO_NOP
1553	aio_sync = EIO_SYNC	2062	aio_sync = EIO_SYNC
1554	PPCODE:	2063	PPCODE:
1555	{	2064	{
…		…
1559		2068
1560	REQ_SEND;	2069	REQ_SEND;
1561	}	2070	}
1562		2071
1563	int	2072	int
1564	aioreq_pri (int pri = 0)	2073	aioreq_pri (int pri = NO_INIT)
1565	CODE:	2074	CODE:
1566	RETVAL = next_pri;	2075	RETVAL = next_pri;
1567	if (items > 0)	2076	if (items > 0)
1568	{	2077	{
1569	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2078	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1659	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2168	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1660	OUTPUT:	2169	OUTPUT:
1661	RETVAL	2170	RETVAL
1662		2171
1663	void	2172	void
1664	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2173	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1665	PPCODE:	2174	PPCODE:
1666	sv_unmagic (scalar, MMAP_MAGIC);	2175	sv_clear_foreign (scalar);
1667	{	2176	{
1668	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2177	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1669	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2178	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1670	if (addr == (void *)-1)	2179	if (addr == (void *)-1)
1671	XSRETURN_NO;	2180	XSRETURN_NO;
1672		2181
1673	sv_force_normal (scalar);	2182	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1674
1675	/* we store the length in mg_obj, as namlen is I32 :/ */
1676	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1677	->mg_obj = (SV *)length;
1678
1679	SvUPGRADE (scalar, SVt_PV); /* nop... */
1680		2183
1681	if (!(prot & PROT_WRITE))	2184	if (!(prot & PROT_WRITE))
1682	SvREADONLY_on (scalar);	2185	SvREADONLY_on (scalar);
1683		2186
1684	if (SvLEN (scalar))
1685	Safefree (SvPVX (scalar));
1686
1687	SvPVX (scalar) = (char *)addr;
1688	SvCUR_set (scalar, length);
1689	SvLEN_set (scalar, 0);
1690	SvPOK_only (scalar);
1691
1692	XSRETURN_YES;	2187	XSRETURN_YES;
1693	}	2188	}
1694		2189
1695	void	2190	void
1696	munmap (SV *scalar)	2191	munmap (SV *scalar)
1697	CODE:	2192	CODE:
1698	sv_unmagic (scalar, MMAP_MAGIC);	2193	sv_clear_foreign (scalar);
		2194
		2195	SV *
		2196	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2197	CODE:
		2198	{
		2199	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2200	void *new;
		2201
		2202	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2203	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2204
		2205	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2206
		2207	RETVAL = &PL_sv_no;
		2208
		2209	if (new != (void *)-1)
		2210	{
		2211	RETVAL = new == (void *)mg->mg_ptr
		2212	? newSVpvn ("0 but true", 10)
		2213	: &PL_sv_yes;
		2214
		2215	mg->mg_ptr = (char *)new;
		2216	mg->mg_obj = (SV *)new_length;
		2217
		2218	SvPVX (scalar) = mg->mg_ptr;
		2219	SvCUR_set (scalar, new_length);
		2220	}
		2221	}
		2222	OUTPUT:
		2223	RETVAL
1699		2224
1700	int	2225	int
1701	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2226	madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1702	ALIAS:	2227	ALIAS:
1703	mprotect = 1	2228	mprotect = 1
1704	CODE:	2229	CODE:
1705	{	2230	{
1706	STRLEN svlen;	2231	STRLEN svlen;
1707	void *addr = SvPVbyte (scalar, svlen);	2232	void *addr = SvPVbyte (scalar, svlen);
1708	size_t len = SvUV (length);	2233	STRLEN len = SvUV (length);
1709		2234
1710	if (offset < 0)	2235	if (offset < 0)
1711	offset += svlen;	2236	offset += svlen;
1712		2237
1713	if (offset < 0 || offset > svlen)	2238	if (offset < 0 || offset > svlen)
…		…
1727	}	2252	}
1728	OUTPUT:	2253	OUTPUT:
1729	RETVAL	2254	RETVAL
1730		2255
1731	int	2256	int
1732	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2257	munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
1733	CODE:	2258	CODE:
1734	{	2259	{
1735	STRLEN svlen;	2260	STRLEN svlen;
1736	void *addr = SvPVbyte (scalar, svlen);	2261	void *addr = SvPVbyte (scalar, svlen);
1737	size_t len = SvUV (length);	2262	size_t len = SvUV (length);
1738		2263
1739	if (offset < 0)	2264	if (offset < 0)
1740	offset += svlen;	2265	offset += svlen;
1741		2266
…		…
1748	addr = (void *)(((intptr_t)addr) + offset);	2273	addr = (void *)(((intptr_t)addr) + offset);
1749	eio_page_align (&addr, &len);	2274	eio_page_align (&addr, &len);
1750	#if _POSIX_MEMLOCK_RANGE	2275	#if _POSIX_MEMLOCK_RANGE
1751	RETVAL = munlock (addr, len);	2276	RETVAL = munlock (addr, len);
1752	#else	2277	#else
1753	RETVAL = ((errno = ENOSYS), -1);	2278	RETVAL = EIO_ENOSYS ();
1754	#endif	2279	#endif
1755	}	2280	}
1756	OUTPUT:	2281	OUTPUT:
		2282	RETVAL
		2283
		2284	int
		2285	mlockall (int flags)
		2286	PROTOTYPE: $;
		2287	CODE:
		2288	RETVAL = eio_mlockall_sync (flags);
		2289	OUTPUT:
1757	RETVAL	2290	RETVAL
1758		2291
1759	int	2292	int
1760	munlockall ()	2293	munlockall ()
1761	CODE:	2294	CODE:
1762	#if _POSIX_MEMLOCK	2295	#if _POSIX_MEMLOCK
1763	munlockall ();	2296	munlockall ();
1764	#else	2297	#else
1765	RETVAL = -1;	2298	RETVAL = EIO_ENOSYS ();
1766	errno = ENOSYS;
1767	#endif	2299	#endif
1768	OUTPUT:	2300	OUTPUT:
1769	RETVAL	2301	RETVAL
		2302
		2303	int
		2304	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2305	CODE:
		2306	{
		2307	#if HAVE_LINUX_SPLICE
		2308	loff_t off_in_, off_out_;
		2309	RETVAL = splice (
		2310	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2311	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2312	length, flags
		2313	);
		2314	#else
		2315	RETVAL = EIO_ENOSYS ();
		2316	#endif
		2317	}
		2318	OUTPUT:
		2319	RETVAL
		2320
		2321	int
		2322	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2323	CODE:
		2324	#if HAVE_LINUX_SPLICE
		2325	RETVAL = tee (rfh, wfh, length, flags);
		2326	#else
		2327	RETVAL = EIO_ENOSYS ();
		2328	#endif
		2329	OUTPUT:
		2330	RETVAL
		2331
		2332	int
		2333	pipesize (aio_rfd rfh, int new_size = -1)
		2334	PROTOTYPE: $;$
		2335	CODE:
		2336	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2337	if (new_size >= 0)
		2338	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2339	else
		2340	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2341	#else
		2342	errno = ENOSYS;
		2343	RETVAL = -1;
		2344	#endif
		2345	OUTPUT:
		2346	RETVAL
		2347
		2348	void
		2349	pipe2 (int flags = 0)
		2350	PROTOTYPE: ;$
		2351	PPCODE:
		2352	{
		2353	int fd[2];
		2354	int res;
		2355
		2356	if (flags)
		2357	#if HAVE_PIPE2
		2358	res = pipe2 (fd, flags);
		2359	#else
		2360	res = (errno = ENOSYS, -1);
		2361	#endif
		2362	else
		2363	res = pipe (fd);
		2364
		2365	if (!res)
		2366	{
		2367	EXTEND (SP, 2);
		2368	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2369	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2370	}
		2371	}
		2372
		2373	void
		2374	eventfd (unsigned int initval = 0, int flags = 0)
		2375	PPCODE:
		2376	{
		2377	int fd;
		2378	#if HAVE_EVENTFD
		2379	fd = eventfd (initval, flags);
		2380	#else
		2381	fd = (errno = ENOSYS, -1);
		2382	#endif
		2383
		2384	XPUSHs (newmortalFH (fd, O_RDWR));
		2385	}
		2386
		2387	void
		2388	timerfd_create (int clockid, int flags = 0)
		2389	PPCODE:
		2390	{
		2391	int fd;
		2392	#if HAVE_TIMERFD
		2393	fd = timerfd_create (clockid, flags);
		2394	#else
		2395	fd = (errno = ENOSYS, -1);
		2396	#endif
		2397
		2398	XPUSHs (newmortalFH (fd, O_RDWR));
		2399	}
		2400
		2401	void
		2402	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2403	PPCODE:
		2404	{
		2405	int fd = s_fileno_croak (fh, 0);
		2406	#if HAVE_TIMERFD
		2407	int res;
		2408	struct itimerspec its, ots;
		2409
		2410	ts_set (&its.it_interval, interval);
		2411	ts_set (&its.it_value , value);
		2412	res = timerfd_settime (fd, flags, &its, &ots);
		2413
		2414	if (!res)
		2415	{
		2416	EXTEND (SP, 2);
		2417	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2418	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2419	}
		2420	#else
		2421	errno = ENOSYS;
		2422	#endif
		2423	}
		2424
		2425	void
		2426	timerfd_gettime (SV *fh)
		2427	PPCODE:
		2428	{
		2429	int fd = s_fileno_croak (fh, 0);
		2430	#if HAVE_TIMERFD
		2431	int res;
		2432	struct itimerspec ots;
		2433	res = timerfd_gettime (fd, &ots);
		2434
		2435	if (!res)
		2436	{
		2437	EXTEND (SP, 2);
		2438	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2439	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2440	}
		2441	#else
		2442	errno = ENOSYS;
		2443	#endif
		2444	}
		2445
		2446	UV
		2447	get_fdlimit ()
		2448	CODE:
		2449	#if HAVE_RLIMITS
		2450	struct rlimit rl;
		2451	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2452	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2453	#endif
		2454	XSRETURN_UNDEF;
		2455	OUTPUT:
		2456	RETVAL
		2457
		2458	void
		2459	min_fdlimit (UV limit = 0x7fffffffU)
		2460	CODE:
		2461	{
		2462	#if HAVE_RLIMITS
		2463	struct rlimit rl;
		2464	rlim_t orig_rlim_max;
		2465	UV bit;
		2466
		2467	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2468	goto fail;
		2469
		2470	if (rl.rlim_cur == RLIM_INFINITY)
		2471	XSRETURN_YES;
		2472
		2473	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2474
		2475	if (rl.rlim_cur < limit)
		2476	{
		2477	rl.rlim_cur = limit;
		2478
		2479	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2480	rl.rlim_max = rl.rlim_cur;
		2481	}
		2482
		2483	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2484	XSRETURN_YES;
		2485
		2486	if (errno == EPERM)
		2487	{
		2488	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2489	/* our limit overflows a system-wide limit */
		2490	/* try an adaptive algorithm, but do not lower the hardlimit */
		2491	rl.rlim_max = 0;
		2492	for (bit = 0x40000000U; bit; bit >>= 1)
		2493	{
		2494	rl.rlim_max |= bit;
		2495	rl.rlim_cur = rl.rlim_max;
		2496
		2497	/* nevr decrease the hard limit */
		2498	if (rl.rlim_max < orig_rlim_max)
		2499	break;
		2500
		2501	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2502	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2503	}
		2504
		2505	/* now, raise the soft limit to the max permitted */
		2506	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2507	{
		2508	rl.rlim_cur = rl.rlim_max;
		2509	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2510	errno = EPERM;
		2511	}
		2512	}
		2513	#endif
		2514	fail:
		2515	XSRETURN_UNDEF;
		2516	}
1770		2517
1771	void _on_next_submit (SV *cb)	2518	void _on_next_submit (SV *cb)
1772	CODE:	2519	CODE:
1773	SvREFCNT_dec (on_next_submit);	2520	SvREFCNT_dec (on_next_submit);
1774	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2521	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1787	DESTROY (SV *self)	2534	DESTROY (SV *self)
1788	CODE:	2535	CODE:
1789	{	2536	{
1790	aio_wd wd = SvAIO_WD (self);	2537	aio_wd wd = SvAIO_WD (self);
1791	#if HAVE_AT	2538	#if HAVE_AT
		2539	{
1792	SV *callback = &PL_sv_undef;	2540	SV *callback = &PL_sv_undef;
1793	dREQ; /* clobbers next_pri :/ */	2541	dREQ; /* clobbers next_pri :/ */
		2542	next_pri = req->pri; /* restore next_pri */
		2543	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1794	req->type = EIO_WD_CLOSE;	2544	req->type = EIO_WD_CLOSE;
1795	req->wd = wd;	2545	req->wd = wd;
1796	REQ_SEND;	2546	REQ_SEND;
		2547	}
1797	#else	2548	#else
1798	eio_wd_close_sync (wd);	2549	eio_wd_close_sync (wd);
1799	#endif	2550	#endif
1800	}	2551	}
1801		2552
…		…
1805	cancel (aio_req_ornot req)	2556	cancel (aio_req_ornot req)
1806	CODE:	2557	CODE:
1807	eio_cancel (req);	2558	eio_cancel (req);
1808		2559
1809	void	2560	void
1810	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2561	cb (aio_req_ornot req, SV *callback = NO_INIT)
1811	PPCODE:	2562	PPCODE:
1812	{	2563	{
1813	if (GIMME_V != G_VOID)	2564	if (GIMME_V != G_VOID)
1814	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2565	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1815		2566
1816	if (items > 1)	2567	if (items > 1)
1817	{	2568	{
1818	SV *cb_cv =get_cb (callback);	2569	SV *cb_cv = get_cb (callback);
1819		2570
1820	SvREFCNT_dec (req->callback);	2571	SvREFCNT_dec (req->callback);
1821	req->callback = SvREFCNT_inc (cb_cv);	2572	req->callback = SvREFCNT_inc (cb_cv);
1822	}	2573	}
1823	}	2574	}
…		…
1880	limit (aio_req grp, int limit)	2631	limit (aio_req grp, int limit)
1881	CODE:	2632	CODE:
1882	eio_grp_limit (grp, limit);	2633	eio_grp_limit (grp, limit);
1883		2634
1884	void	2635	void
1885	feed (aio_req grp, SV *callback=&PL_sv_undef)	2636	feed (aio_req grp, SV *callback = &PL_sv_undef)
1886	CODE:	2637	CODE:
1887	{	2638	{
1888	SvREFCNT_dec (grp->sv2);	2639	SvREFCNT_dec (grp->sv2);
1889	grp->sv2 = newSVsv (callback);	2640	grp->sv2 = newSVsv (callback);
1890	grp->feed = aio_grp_feed;	2641	grp->feed = aio_grp_feed;

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