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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 1.261 by root, Tue Jul 24 19:32:20 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
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	23	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	24	# include <sys/mman.h>
		25	#endif
		26
		27	/* the incompetent fool that created musl keeps __linux__, refuses
		28	* to implement any linux standard apis, and also has no way to test
		29	* for his broken iplementation. don't complain to me if this fails
		30	* for you.
		31	*/
		32	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		33	# include <linux/fs.h>
		34	# ifdef FS_IOC_FIEMAP
		35	# include <linux/types.h>
		36	# include <linux/fiemap.h>
		37	# define HAVE_FIEMAP 1
		38	# endif
22	#endif	39	#endif
23		40
24	/* perl namespace pollution */	41	/* perl namespace pollution */
25	#undef VERSION	42	#undef VERSION
26		43
…		…
62	#undef dup	79	#undef dup
63	#undef dup2	80	#undef dup2
64	#undef abort	81	#undef abort
65	#undef pipe	82	#undef pipe
66		83
		84	#define EIO_STRUCT_STAT struct _stati64
		85	#define EIO_STRUCT_STATI64
		86
67	#else	87	#else
68		88
69	#include <sys/time.h>	89	#include <sys/time.h>
70	#include <sys/select.h>	90	#include <sys/select.h>
71	#include <unistd.h>	91	#include <unistd.h>
72	#include <utime.h>	92	#include <utime.h>
73	#include <signal.h>	93	#include <signal.h>
74		94
75	#endif
76
77	#define EIO_STRUCT_STAT Stat_t	95	#define EIO_STRUCT_STAT Stat_t
78		96
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	97	#endif
89		98
90	/*****************************************************************************/	99	/*****************************************************************************/
91		100
92	#if __GNUC__ >= 3	101	#if __GNUC__ >= 3
…		…
97		106
98	#define expect_false(expr) expect ((expr) != 0, 0)	107	#define expect_false(expr) expect ((expr) != 0, 0)
99	#define expect_true(expr) expect ((expr) != 0, 1)	108	#define expect_true(expr) expect ((expr) != 0, 1)
100		109
101	/*****************************************************************************/	110	/*****************************************************************************/
		111
		112	#include "libeio/config.h"
		113
		114	#include "schmorp.h"
		115
		116	#if HAVE_EVENTFD
		117	# include <sys/eventfd.h>
		118	#endif
		119
		120	#if HAVE_TIMERFD
		121	# include <sys/timerfd.h>
		122	#endif
		123
		124	#if HAVE_RLIMITS
		125	#include <sys/time.h>
		126	#include <sys/resource.h>
		127	#endif
102		128
103	typedef SV SV8; /* byte-sv, used for argument-checking */	129	typedef SV SV8; /* byte-sv, used for argument-checking */
104	typedef int aio_rfd; /* read file desriptor */	130	typedef int aio_rfd; /* read file desriptor */
105	typedef int aio_wfd; /* write file descriptor */	131	typedef int aio_wfd; /* write file descriptor */
106		132
…		…
113	STRLEN stroffset; \	139	STRLEN stroffset; \
114	SV *self;	140	SV *self;
115		141
116	#define EIO_NO_WRAPPERS 1	142	#define EIO_NO_WRAPPERS 1
117		143
118	#include "libeio/config.h"
119	#include "libeio/eio.h"	144	#include "libeio/eio.h"
120		145
121	static int req_invoke (eio_req *req);	146	static int req_invoke (eio_req *req);
122	#define EIO_FINISH(req) req_invoke (req)	147	#define EIO_FINISH(req) req_invoke (req)
123	static void req_destroy (eio_req *grp);	148	static void req_destroy (eio_req *grp);
124	#define EIO_DESTROY(req) req_destroy (req)	149	#define EIO_DESTROY(req) req_destroy (req)
125		150
126	#include "libeio/eio.c"	151	#include "libeio/eio.c"
127		152
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	153	#if !HAVE_POSIX_FADVISE
194	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	154	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
195	#endif	155	#endif
196		156
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	157	#if !HAVE_POSIX_MADVISE
214	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	158	# 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	159	#endif
291		160
292	#ifndef MAP_ANONYMOUS	161	#ifndef MAP_ANONYMOUS
293	# ifdef MAP_ANON	162	# ifdef MAP_ANON
294	# define MAP_ANONYMOUS MAP_ANON	163	# define MAP_ANONYMOUS MAP_ANON
295	# else	164	# else
296	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	165	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
297	# endif	166	# endif
298	#endif	167	#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		168
315	#ifndef makedev	169	#ifndef makedev
316	# define makedev(maj,min) (((maj) << 8) | (min))	170	# define makedev(maj,min) (((maj) << 8) | (min))
317	#endif	171	#endif
318	#ifndef major	172	#ifndef major
…		…
320	#endif	174	#endif
321	#ifndef minor	175	#ifndef minor
322	# define minor(dev) ((dev) & 0xff)	176	# define minor(dev) ((dev) & 0xff)
323	#endif	177	#endif
324		178
325	#ifndef PAGESIZE	179	#if PAGESIZE <= 0
326	# define PAGESIZE sysconf (_SC_PAGESIZE)	180	# define PAGESIZE sysconf (_SC_PAGESIZE)
327	#endif	181	#endif
		182
		183	/*****************************************************************************/
		184
		185	#if !_POSIX_MAPPED_FILES
		186	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		187	# define munmap(addr,length) EIO_ENOSYS ()
		188	#endif
		189
		190	#if !_POSIX_MEMORY_PROTECTION
		191	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		192	#endif
		193
		194	#if !MREMAP_MAYMOVE
		195	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		196	#endif
		197
		198	#define FOREIGN_MAGIC PERL_MAGIC_ext
		199
		200	static int ecb_cold
		201	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		202	{
		203	int old_errno = errno;
		204	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		205	errno = old_errno;
		206
		207	mg->mg_obj = 0; /* just in case */
		208
		209	SvREADONLY_off (sv);
		210
		211	if (SvPVX (sv) != mg->mg_ptr)
		212	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		213
		214	SvCUR_set (sv, 0);
		215	SvPVX (sv) = 0;
		216	SvOK_off (sv);
		217
		218	return 0;
		219	}
		220
		221	static MGVTBL mmap_vtbl = {
		222	0, 0, 0, 0, mmap_free
		223	};
		224
		225	static int ecb_cold
		226	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		227	{
		228	free (mg->mg_ptr);
		229	mg->mg_obj = 0; /* just in case */
		230
		231	SvREADONLY_off (sv);
		232
		233	if (SvPVX (sv) != mg->mg_ptr)
		234	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		235
		236	SvCUR_set (sv, 0);
		237	SvPVX (sv) = 0;
		238	SvOK_off (sv);
		239
		240	return 0;
		241	}
		242
		243	static MGVTBL sysfree_vtbl = {
		244	0, 0, 0, 0, sysfree_free
		245	};
		246
		247	/*****************************************************************************/
		248
		249	/* helper: set scalar to foreign ptr with custom free */
		250	static void
		251	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		252	{
		253	sv_force_normal (sv);
		254
		255	/* we store the length in mg_obj, as namlen is I32 :/ */
		256	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		257	->mg_obj = (SV *)length;
		258
		259	SvUPGRADE (sv, SVt_PV); /* nop... */
		260
		261	if (SvLEN (sv))
		262	Safefree (SvPVX (sv));
		263
		264	SvPVX (sv) = (char *)addr;
		265	SvCUR_set (sv, length);
		266	SvLEN_set (sv, 0);
		267	SvPOK_only (sv);
		268	}
		269
		270	static void
		271	sv_clear_foreign (SV *sv)
		272	{
		273	/* todo: iterate over magic and only free ours, but of course */
		274	/* the perl5porters will call that (correct) behaviour buggy */
		275	sv_unmagic (sv, FOREIGN_MAGIC);
		276	}
		277
		278	/*****************************************************************************/
		279
		280	/* defines all sorts of constants to 0 unless they are already defined */
		281	/* also provides const_iv_ and const_niv_ macros for them */
		282	#include "def0.h"
		283
		284	/*****************************************************************************/
		285
		286	static void
		287	fiemap (eio_req *req)
		288	{
		289	req->result = -1;
		290
		291	#if HAVE_FIEMAP
		292	/* assume some c99 */
		293	struct fiemap *fiemap = 0;
		294	size_t end_offset;
		295	int count = req->int3;
		296
		297	req->flags |= EIO_FLAG_PTR1_FREE;
		298
		299	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		300	/* increase in 3.5kb steps */
		301	if (count < 0)
		302	count = 8;
		303
		304	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		305	errno = ENOMEM;
		306	if (!fiemap)
		307	return;
		308
		309	req->ptr1 = fiemap;
		310
		311	fiemap->fm_start = req->offs;
		312	fiemap->fm_length = req->size;
		313	fiemap->fm_flags = req->int2;
		314	fiemap->fm_extent_count = count;
		315
		316	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		317	return;
		318
		319	if (req->int3 >= 0 /* not autosizing */
		320	|| !fiemap->fm_mapped_extents /* no more extents */
		321	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		322	goto done;
		323
		324	/* else we have to loop -
		325	* it would be tempting (actually I tried that first) to just query the
		326	* number of extents needed, but linux often feels like not returning all
		327	* extents, without telling us it left any out. this complicates
		328	* this quite a bit.
		329	*/
		330
		331	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		332
		333	for (;;)
		334	{
		335	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		336	char scratch[3072];
		337	struct fiemap *incmap = (struct fiemap *)scratch;
		338
		339	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		340	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		341	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		342	incmap->fm_flags = fiemap->fm_flags;
		343	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		344
		345	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		346	return;
		347
		348	if (!incmap->fm_mapped_extents)
		349	goto done;
		350
		351	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		352	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		353	errno = ENOMEM;
		354	if (!fiemap)
		355	return;
		356
		357	req->ptr1 = fiemap;
		358
		359	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		360	{
		361	struct fiemap_extent *e = incmap->fm_extents + count;
		362
		363	if (e->fe_logical + e->fe_length >= end_offset)
		364	goto done;
		365
		366	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		367
		368	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		369	goto done;
		370
		371	}
		372	}
		373
		374	done:
		375	req->result = 0;
		376
		377	#else
		378	errno = ENOSYS;
		379	#endif
		380	}
		381
		382	/*****************************************************************************/
328		383
329	enum {	384	enum {
330	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	385	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
331	};	386	};
332		387
333	typedef eio_req *aio_req;	388	typedef eio_req *aio_req;
334	typedef eio_req *aio_req_ornot;	389	typedef eio_req *aio_req_ornot;
335	typedef eio_wd *aio_wd;	390	typedef eio_wd aio_wd;
336		391
337	static SV *on_next_submit;	392	static SV *on_next_submit;
338	static int next_pri = EIO_PRI_DEFAULT;	393	static int next_pri = EIO_PRI_DEFAULT;
339	static int max_outstanding;	394	static int max_outstanding;
340		395
341	static s_epipe respipe;	396	static s_epipe respipe;
342		397
343	static void req_destroy (aio_req req);	398	static void req_destroy (aio_req req);
344	static void req_cancel (aio_req req);	399	static void req_cancel (aio_req req);
345		400
346	static void want_poll (void)	401	static void
		402	want_poll (void)
347	{	403	{
348	/* write a dummy byte to the pipe so fh becomes ready */	404	/* write a dummy byte to the pipe so fh becomes ready */
349	s_epipe_signal (&respipe);	405	s_epipe_signal (&respipe);
350	}	406	}
351		407
352	static void done_poll (void)	408	static void
		409	done_poll (void)
353	{	410	{
354	/* read any signals sent by the worker threads */	411	/* read any signals sent by the worker threads */
355	s_epipe_drain (&respipe);	412	s_epipe_drain (&respipe);
356	}	413	}
357		414
358	/* must be called at most once */	415	/* must be called at most once */
		416	static SV *
359	static SV *req_sv (aio_req req, HV *stash)	417	req_sv (aio_req req, HV *stash)
360	{	418	{
361	if (!req->self)	419	if (!req->self)
362	{	420	{
363	req->self = (SV *)newHV ();	421	req->self = (SV *)newHV ();
364	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	422	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
365	}	423	}
366		424
367	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	425	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
368	}	426	}
369		427
370	static aio_req SvAIO_REQ (SV *sv)	428	static SV *
		429	newSVaio_wd (aio_wd wd)
		430	{
		431	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		432	}
		433
		434	static aio_req
		435	SvAIO_REQ (SV *sv)
371	{	436	{
372	MAGIC *mg;	437	MAGIC *mg;
373		438
374	if (!SvROK (sv)	439	if (!SvROK (sv)
		440	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
375	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	441	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
376	&& SvSTASH (SvRV (sv)) != aio_req_stash	442	&& SvSTASH (SvRV (sv)) != aio_req_stash
377	&& !sv_derived_from (sv, "IO::AIO::REQ")))	443	&& !sv_derived_from (sv, "IO::AIO::REQ")))
378	croak ("object of class IO::AIO::REQ expected");	444	croak ("object of class IO::AIO::REQ expected");
379		445
380	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	446	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
381		447
382	return mg ? (aio_req)mg->mg_ptr : 0;	448	return mg ? (aio_req)mg->mg_ptr : 0;
383	}	449	}
384		450
385	static aio_wd SvAIO_WD (SV *sv)	451	static aio_wd
		452	SvAIO_WD (SV *sv)
386	{	453	{
387	if (!SvROK (sv)	454	if (!SvROK (sv)
		455	|| SvTYPE (SvRV (sv)) != SVt_PVMG
388	|| SvSTASH (SvRV (sv)) != aio_wd_stash	456	|| 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");	457	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
391		458
392	return (aio_wd)(long)SvIVX (SvRV (sv));	459	return (aio_wd)(long)SvIVX (SvRV (sv));
393	}	460	}
394		461
		462	static SV *
		463	newmortalFH (int fd, int flags)
		464	{
		465	if (fd < 0)
		466	return &PL_sv_undef;
		467
		468	GV *gv = (GV *)sv_newmortal ();
		469	char sym[64];
		470	int symlen;
		471
		472	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		473	gv_init (gv, aio_stash, sym, symlen, 0);
		474
		475	symlen = snprintf (
		476	sym,
		477	sizeof (sym),
		478	"%s&=%d",
		479	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		480	fd
		481	);
		482
		483	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		484	? (SV *)gv : &PL_sv_undef;
		485	}
		486
		487	static void
395	static void aio_grp_feed (aio_req grp)	488	aio_grp_feed (aio_req grp)
396	{	489	{
397	if (grp->sv2 && SvOK (grp->sv2))	490	if (grp->sv2 && SvOK (grp->sv2))
398	{	491	{
399	dSP;	492	dSP;
400		493
…		…
408	FREETMPS;	501	FREETMPS;
409	LEAVE;	502	LEAVE;
410	}	503	}
411	}	504	}
412		505
		506	static void
413	static void req_submit (eio_req *req)	507	req_submit (eio_req *req)
414	{	508	{
415	eio_submit (req);	509	eio_submit (req);
416		510
417	if (expect_false (on_next_submit))	511	if (expect_false (on_next_submit))
418	{	512	{
…		…
425	PUTBACK;	519	PUTBACK;
426	call_sv (cb, G_DISCARD | G_EVAL);	520	call_sv (cb, G_DISCARD | G_EVAL);
427	}	521	}
428	}	522	}
429		523
		524	static int
430	static int req_invoke (eio_req *req)	525	req_invoke (eio_req *req)
431	{	526	{
432	if (req->flags & FLAG_SV2_RO_OFF)	527	if (req->flags & FLAG_SV2_RO_OFF)
433	SvREADONLY_off (req->sv2);	528	SvREADONLY_off (req->sv2);
434		529
435	if (!EIO_CANCELLED (req) && req->callback)	530	if (!EIO_CANCELLED (req) && req->callback)
…		…
457	}	552	}
458		553
459	switch (req->type)	554	switch (req->type)
460	{	555	{
461	case EIO_WD_OPEN:	556	case EIO_WD_OPEN:
462	PUSHs (sv_2mortal (sv_bless (newRV_noinc (newSViv (((long)req->wd))), aio_wd_stash)));	557	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
463	break;	558	break;
464		559
465	case EIO_READDIR:	560	case EIO_READDIR:
466	{	561	{
467	SV *rv = &PL_sv_undef;	562	SV *rv = &PL_sv_undef;
…		…
522	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	617	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
523	}	618	}
524	break;	619	break;
525		620
526	case EIO_OPEN:	621	case EIO_OPEN:
527	{	622	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;	623	break;
556		624
557	case EIO_STATVFS:	625	case EIO_STATVFS:
558	case EIO_FSTATVFS:	626	case EIO_FSTATVFS:
559	{	627	{
…		…
562	#ifndef _WIN32	630	#ifndef _WIN32
563	if (req->result >= 0)	631	if (req->result >= 0)
564	{	632	{
565	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	633	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
566	HV *hv = newHV ();	634	HV *hv = newHV ();
		635	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		636	* chooses to make it a struct.
		637	*/
		638	unsigned long fsid = 0;
		639	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
567		640
568	rv = sv_2mortal (newRV_noinc ((SV *)hv));	641	rv = sv_2mortal (newRV_noinc ((SV *)hv));
569		642
570	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	643	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);	644	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);	646	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);	647	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);	648	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);	649	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);	650	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);	651	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
579	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	652	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);	653	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
581	}	654	}
582	#endif	655	#endif
583		656
…		…
611	break;	684	break;
612		685
613	case EIO_STAT:	686	case EIO_STAT:
614	case EIO_LSTAT:	687	case EIO_LSTAT:
615	case EIO_FSTAT:	688	case EIO_FSTAT:
616	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	689	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		690
617	PL_laststatval = req->result;	691	if (!(PL_laststatval = req->result))
618	/* if compilation fails here then perl's Stat_t is not struct _stati64 */	692	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
619	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	693	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		694
620	PUSHs (sv_result);	695	PUSHs (sv_result);
		696	break;
		697
		698	case EIO_SEEK:
		699	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
621	break;	700	break;
622		701
623	case EIO_READ:	702	case EIO_READ:
624	{	703	{
625	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	704	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
628	SvSETMAGIC (req->sv2);	707	SvSETMAGIC (req->sv2);
629	PUSHs (sv_result);	708	PUSHs (sv_result);
630	}	709	}
631	break;	710	break;
632		711
		712	case EIO_SLURP:
		713	{
		714	if (req->result >= 0)
		715	{
		716	/* if length was originally not known, we steal the malloc'ed memory */
		717	if (req->flags & EIO_FLAG_PTR2_FREE)
		718	{
		719	req->flags &= ~EIO_FLAG_PTR2_FREE;
		720	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		721	}
		722	else
		723	{
		724	SvCUR_set (req->sv2, req->result);
		725	*SvEND (req->sv2) = 0;
		726	SvPOK_only (req->sv2);
		727	}
		728
		729	SvSETMAGIC (req->sv2);
		730	}
		731
		732	PUSHs (sv_result);
		733	}
		734	break;
		735
		736	case EIO_CUSTOM:
		737	if (req->feed == fiemap)
		738	{
		739	#if HAVE_FIEMAP
		740	if (!req->result)
		741	{
		742	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		743
		744	if (fiemap->fm_extent_count)
		745	{
		746	AV *av = newAV ();
		747	int i;
		748
		749	while (fiemap->fm_mapped_extents)
		750	{
		751	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		752	AV *ext_av = newAV ();
		753
		754	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		755	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		756	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		757	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		758
		759	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		760	}
		761
		762	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		763	}
		764	else
		765	{
		766	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		767	PUSHs (sv_result);
		768	}
		769	}
		770	#endif
		771	}
		772	else
		773	PUSHs (sv_result);
		774	break;
		775
633	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	776	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
634	if (req->result > 0)	777	if (req->result > 0)
635	SvIV_set (sv_result, 0);	778	SvIV_set (sv_result, 0);
636	/* FALLTHROUGH */	779	/* FALLTHROUGH */
637		780
…		…
658	}	801	}
659		802
660	return !!SvTRUE (ERRSV);	803	return !!SvTRUE (ERRSV);
661	}	804	}
662		805
		806	static void
663	static void req_destroy (aio_req req)	807	req_destroy (aio_req req)
664	{	808	{
665	if (req->self)	809	if (req->self)
666	{	810	{
667	sv_unmagic (req->self, PERL_MAGIC_ext);	811	sv_unmagic (req->self, PERL_MAGIC_ext);
668	SvREFCNT_dec (req->self);	812	SvREFCNT_dec (req->self);
…		…
672	SvREFCNT_dec (req->sv2);	816	SvREFCNT_dec (req->sv2);
673	SvREFCNT_dec (req->sv3);	817	SvREFCNT_dec (req->sv3);
674	SvREFCNT_dec (req->sv4);	818	SvREFCNT_dec (req->sv4);
675	SvREFCNT_dec (req->callback);	819	SvREFCNT_dec (req->callback);
676		820
677	Safefree (req);	821	free (req);
678	}	822	}
679		823
		824	static void
680	static void req_cancel_subs (aio_req grp)	825	req_cancel_subs (aio_req grp)
681	{	826	{
682	if (grp->type != EIO_GROUP)	827	if (grp->type != EIO_GROUP)
683	return;	828	return;
684		829
685	SvREFCNT_dec (grp->sv2);	830	SvREFCNT_dec (grp->sv2);
686	grp->sv2 = 0;	831	grp->sv2 = 0;
687		832
688	eio_grp_cancel (grp);	833	eio_grp_cancel (grp);
689	}	834	}
690		835
		836	static void ecb_cold
691	static void create_respipe (void)	837	create_respipe (void)
692	{	838	{
693	if (s_epipe_renew (&respipe))	839	if (s_epipe_renew (&respipe))
694	croak ("IO::AIO: unable to initialize result pipe");	840	croak ("IO::AIO: unable to initialize result pipe");
695	}	841	}
696		842
697	static void poll_wait (void)	843	static void
		844	poll_wait (void)
698	{	845	{
699	while (eio_nreqs ())	846	while (eio_nreqs ())
700	{	847	{
701	int size;	848	int size;
702		849
703	X_LOCK (reslock);	850	X_LOCK (EIO_POOL->reslock);
704	size = res_queue.size;	851	size = EIO_POOL->res_queue.size;
705	X_UNLOCK (reslock);	852	X_UNLOCK (EIO_POOL->reslock);
706		853
707	if (size)	854	if (size)
708	return;	855	return;
709		856
710	etp_maybe_start_thread ();	857	etp_maybe_start_thread (EIO_POOL);
711		858
712	s_epipe_wait (&respipe);	859	s_epipe_wait (&respipe);
713	}	860	}
714	}	861	}
715		862
716	static int poll_cb (void)	863	static int
		864	poll_cb (void)
717	{	865	{
718	for (;;)	866	for (;;)
719	{	867	{
720	int res = eio_poll ();	868	int res = eio_poll ();
721		869
…		…
738	croak ("IO::AIO: unable to initialise eio library");	886	croak ("IO::AIO: unable to initialise eio library");
739	}	887	}
740		888
741	/*****************************************************************************/	889	/*****************************************************************************/
742		890
743	#if !_POSIX_MAPPED_FILES	891	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)	892	get_cb (SV *cb_sv)
786	{	893	{
787	SvGETMAGIC (cb_sv);	894	SvGETMAGIC (cb_sv);
788	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	895	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
789	}	896	}
790		897
		898	static aio_req ecb_noinline
		899	dreq (SV *callback)
		900	{
		901	SV *cb_cv;
		902	aio_req req;
		903	int req_pri = next_pri;
		904	next_pri = EIO_PRI_DEFAULT;
		905
		906	cb_cv = get_cb (callback);
		907
		908	req = calloc (sizeof (*req), 1);
		909	if (!req)
		910	croak ("out of memory during eio_req allocation");
		911
		912	req->callback = SvREFCNT_inc (cb_cv);
		913	req->pri = req_pri;
		914
		915	return req;
		916	}
		917
791	#define dREQ \	918	#define dREQ \
792	SV *cb_cv; \	919	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		920
806	#define REQ_SEND \	921	#define REQ_SEND \
807	PUTBACK; \	922	PUTBACK; \
808	req_submit (req); \	923	req_submit (req); \
809	SPAGAIN; \	924	SPAGAIN; \
810	\	925	\
811	if (GIMME_V != G_VOID) \	926	if (GIMME_V != G_VOID) \
812	XPUSHs (req_sv (req, aio_req_stash));	927	XPUSHs (req_sv (req, aio_req_stash));
813		928
814	static void	929	ecb_inline void
815	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)	930	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
816	{	931	{
817	if (SvROK (path))	932	if (expect_false (SvROK (path)))
818	{	933	{
819	AV *av = (AV *)SvRV (path);	934	SV *rv = SvRV (path);
820	SV *wdob;	935	SV *wdob;
821		936
822	if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)	937	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
823	croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");	938	{
824
825	path = AvARRAY (av)[1];	939	path = AvARRAY (rv)[1];
826	wdob = AvARRAY (av)[0];	940	wdob = AvARRAY (rv)[0];
827		941
		942	if (SvOK (wdob))
		943	{
828	*wd = SvAIO_WD (wdob);	944	*wd = SvAIO_WD (wdob);
829	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));	945	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		946	}
		947	else
		948	*wd = EIO_INVALID_WD;
		949	}
		950	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		951	{
		952	*wd = (aio_wd)(long)SvIVX (rv);
		953	*wdsv = SvREFCNT_inc_NN (rv);
		954	*ptr = ".";
		955	return; /* path set to "." */
		956	}
		957	else
		958	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
830	}	959	}
831		960
832	*pathsv = newSVsv (path);	961	*pathsv = newSVsv (path);
833	*ptr = SvPVbyte_nolen (*pathsv);	962	*ptr = SvPVbyte_nolen (*pathsv);
834	}	963	}
835		964
836	static void	965	static void ecb_noinline
837	req_set_path1 (aio_req req, SV *path)	966	req_set_path1 (aio_req req, SV *path)
838	{	967	{
839	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);	968	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
840	}	969	}
841		970
842	static void	971	static void ecb_noinline
843	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)	972	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
844	{	973	{
845	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;	974	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
846		975
847	switch (SvTYPE (rv))	976	switch (SvTYPE (rv))
…		…
857	default:	986	default:
858	req->type = type_path;	987	req->type = type_path;
859	req_set_path1 (req, fh_or_path);	988	req_set_path1 (req, fh_or_path);
860	break;	989	break;
861	}	990	}
862
863	}	991	}
		992
		993	/*****************************************************************************/
		994
		995	static void
		996	ts_set (struct timespec *ts, NV value)
		997	{
		998	ts->tv_sec = value;
		999	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1000	}
		1001
		1002	static NV
		1003	ts_get (const struct timespec *ts)
		1004	{
		1005	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1006	}
		1007
		1008	/*****************************************************************************/
		1009
		1010	XS(boot_IO__AIO) ecb_cold;
864		1011
865	MODULE = IO::AIO PACKAGE = IO::AIO	1012	MODULE = IO::AIO PACKAGE = IO::AIO
866		1013
867	PROTOTYPES: ENABLE	1014	PROTOTYPES: ENABLE
868		1015
…		…
873	IV iv;	1020	IV iv;
874	} *civ, const_iv[] = {	1021	} *civ, const_iv[] = {
875	# define const_niv(name, value) { # name, (IV) value },	1022	# define const_niv(name, value) { # name, (IV) value },
876	# define const_iv(name) { # name, (IV) name },	1023	# define const_iv(name) { # name, (IV) name },
877	# define const_eio(name) { # name, (IV) EIO_ ## name },	1024	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1025
		1026	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1027	/* the first block can be undef if missing */
		1028	const_iv (ENOSYS)
878	const_iv (EXDEV)	1029	const_iv (EXDEV)
879	const_iv (ENOSYS)	1030	const_iv (EBADR)
		1031
		1032	/* for lseek */
		1033	const_iv (SEEK_DATA)
		1034	const_iv (SEEK_HOLE)
		1035
		1036	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1037	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1038	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1039	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1040	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1041	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1042
		1043	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1044	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1045	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1046	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1047	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1048
		1049	/* the second block will be 0 when missing */
		1050	const_iv (O_ACCMODE)
		1051
880	const_iv (O_RDONLY)	1052	const_iv (O_RDONLY)
881	const_iv (O_WRONLY)	1053	const_iv (O_WRONLY)
882	const_iv (O_RDWR)	1054	const_iv (O_RDWR)
883	const_iv (O_CREAT)	1055	const_iv (O_CREAT)
884	const_iv (O_TRUNC)	1056	const_iv (O_TRUNC)
…		…
897	const_iv (O_SEARCH)	1069	const_iv (O_SEARCH)
898	const_iv (O_DIRECTORY)	1070	const_iv (O_DIRECTORY)
899	const_iv (O_DSYNC)	1071	const_iv (O_DSYNC)
900	const_iv (O_RSYNC)	1072	const_iv (O_RSYNC)
901	const_iv (O_SYNC)	1073	const_iv (O_SYNC)
		1074	const_iv (O_PATH)
		1075	const_iv (O_TMPFILE)
902	const_iv (O_TTY_INIT)	1076	const_iv (O_TTY_INIT)
903		1077
904	const_iv (S_IFIFO)	1078	const_iv (S_IFIFO)
905	const_iv (S_IFCHR)	1079	const_iv (S_IFCHR)
906	const_iv (S_IFBLK)	1080	const_iv (S_IFBLK)
…		…
908	const_iv (S_IFREG)	1082	const_iv (S_IFREG)
909	const_iv (S_IFDIR)	1083	const_iv (S_IFDIR)
910	const_iv (S_IFWHT)	1084	const_iv (S_IFWHT)
911	const_iv (S_IFSOCK)	1085	const_iv (S_IFSOCK)
912	const_iv (S_IFMT)	1086	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		1087
927	const_iv (ST_RDONLY)	1088	const_iv (ST_RDONLY)
928	const_iv (ST_NOSUID)	1089	const_iv (ST_NOSUID)
929	const_iv (ST_NODEV)	1090	const_iv (ST_NODEV)
930	const_iv (ST_NOEXEC)	1091	const_iv (ST_NOEXEC)
…		…
940	const_iv (PROT_NONE)	1101	const_iv (PROT_NONE)
941	const_iv (PROT_EXEC)	1102	const_iv (PROT_EXEC)
942	const_iv (PROT_READ)	1103	const_iv (PROT_READ)
943	const_iv (PROT_WRITE)	1104	const_iv (PROT_WRITE)
944		1105
945	/*const_iv (MAP_FIXED)*/
946	const_iv (MAP_PRIVATE)	1106	const_iv (MAP_PRIVATE)
947	const_iv (MAP_SHARED)	1107	const_iv (MAP_SHARED)
		1108	const_iv (MAP_FIXED)
948	const_iv (MAP_ANONYMOUS)	1109	const_iv (MAP_ANONYMOUS)
949		1110
950	/* linuxish */	1111	/* linuxish */
951	const_iv (MAP_HUGETLB)
952	const_iv (MAP_LOCKED)	1112	const_iv (MAP_LOCKED)
953	const_iv (MAP_NORESERVE)	1113	const_iv (MAP_NORESERVE)
954	const_iv (MAP_POPULATE)	1114	const_iv (MAP_POPULATE)
955	const_iv (MAP_NONBLOCK)	1115	const_iv (MAP_NONBLOCK)
		1116	const_iv (MAP_GROWSDOWN)
		1117	const_iv (MAP_32BIT)
		1118	const_iv (MAP_HUGETLB)
		1119	const_iv (MAP_STACK)
		1120
		1121	const_iv (MREMAP_MAYMOVE)
		1122	const_iv (MREMAP_FIXED)
		1123
		1124	const_iv (F_DUPFD_CLOEXEC)
		1125
		1126	const_iv (MSG_CMSG_CLOEXEC)
		1127	const_iv (SOCK_CLOEXEC)
		1128
		1129	const_iv (F_OFD_GETLK)
		1130	const_iv (F_OFD_SETLK)
		1131	const_iv (F_OFD_GETLKW)
		1132
		1133	const_iv (FIFREEZE)
		1134	const_iv (FITHAW)
		1135	const_iv (FITRIM)
		1136	const_iv (FICLONE)
		1137	const_iv (FICLONERANGE)
		1138	const_iv (FIDEDUPERANGE)
		1139
		1140	const_iv (FS_IOC_GETFLAGS)
		1141	const_iv (FS_IOC_SETFLAGS)
		1142	const_iv (FS_IOC_GETVERSION)
		1143	const_iv (FS_IOC_SETVERSION)
		1144	const_iv (FS_IOC_FIEMAP)
		1145	const_iv (FS_IOC_FSGETXATTR)
		1146	const_iv (FS_IOC_FSSETXATTR)
		1147	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1148	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1149	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1150
		1151	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1152
		1153	const_iv (FS_SECRM_FL)
		1154	const_iv (FS_UNRM_FL)
		1155	const_iv (FS_COMPR_FL)
		1156	const_iv (FS_SYNC_FL)
		1157	const_iv (FS_IMMUTABLE_FL)
		1158	const_iv (FS_APPEND_FL)
		1159	const_iv (FS_NODUMP_FL)
		1160	const_iv (FS_NOATIME_FL)
		1161	const_iv (FS_DIRTY_FL)
		1162	const_iv (FS_COMPRBLK_FL)
		1163	const_iv (FS_NOCOMP_FL)
		1164	const_iv (FS_ENCRYPT_FL)
		1165	const_iv (FS_BTREE_FL)
		1166	const_iv (FS_INDEX_FL)
		1167	const_iv (FS_JOURNAL_DATA_FL)
		1168	const_iv (FS_NOTAIL_FL)
		1169	const_iv (FS_DIRSYNC_FL)
		1170	const_iv (FS_TOPDIR_FL)
		1171	const_iv (FS_FL_USER_MODIFIABLE)
		1172
		1173	const_iv (FS_XFLAG_REALTIME)
		1174	const_iv (FS_XFLAG_PREALLOC)
		1175	const_iv (FS_XFLAG_IMMUTABLE)
		1176	const_iv (FS_XFLAG_APPEND)
		1177	const_iv (FS_XFLAG_SYNC)
		1178	const_iv (FS_XFLAG_NOATIME)
		1179	const_iv (FS_XFLAG_NODUMP)
		1180	const_iv (FS_XFLAG_RTINHERIT)
		1181	const_iv (FS_XFLAG_PROJINHERIT)
		1182	const_iv (FS_XFLAG_NOSYMLINKS)
		1183	const_iv (FS_XFLAG_EXTSIZE)
		1184	const_iv (FS_XFLAG_EXTSZINHERIT)
		1185	const_iv (FS_XFLAG_NODEFRAG)
		1186	const_iv (FS_XFLAG_FILESTREAM)
		1187	const_iv (FS_XFLAG_DAX)
		1188	const_iv (FS_XFLAG_HASATTR)
		1189
		1190	const_iv (FIEMAP_FLAG_SYNC)
		1191	const_iv (FIEMAP_FLAG_XATTR)
		1192	const_iv (FIEMAP_FLAGS_COMPAT)
		1193	const_iv (FIEMAP_EXTENT_LAST)
		1194	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1195	const_iv (FIEMAP_EXTENT_DELALLOC)
		1196	const_iv (FIEMAP_EXTENT_ENCODED)
		1197	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1198	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1199	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1200	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1201	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1202	const_iv (FIEMAP_EXTENT_MERGED)
		1203	const_iv (FIEMAP_EXTENT_SHARED)
		1204
		1205	const_iv (SPLICE_F_MOVE)
		1206	const_iv (SPLICE_F_NONBLOCK)
		1207	const_iv (SPLICE_F_MORE)
		1208	const_iv (SPLICE_F_GIFT)
		1209
		1210	const_iv (EFD_CLOEXEC)
		1211	const_iv (EFD_NONBLOCK)
		1212	const_iv (EFD_SEMAPHORE)
		1213
		1214	const_iv (CLOCK_REALTIME)
		1215	const_iv (CLOCK_MONOTONIC)
		1216	const_iv (CLOCK_BOOTTIME)
		1217	const_iv (CLOCK_REALTIME_ALARM)
		1218	const_iv (CLOCK_BOOTTIME_ALARM)
		1219
		1220	const_iv (TFD_NONBLOCK)
		1221	const_iv (TFD_CLOEXEC)
		1222
		1223	const_iv (TFD_TIMER_ABSTIME)
		1224	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1225
		1226	/* these are libeio constants, and are independent of gendef0 */
		1227	const_eio (SEEK_SET)
		1228	const_eio (SEEK_CUR)
		1229	const_eio (SEEK_END)
956		1230
957	const_eio (MCL_FUTURE)	1231	const_eio (MCL_FUTURE)
958	const_eio (MCL_CURRENT)	1232	const_eio (MCL_CURRENT)
959		1233
960	const_eio (MS_ASYNC)	1234	const_eio (MS_ASYNC)
…		…
966	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1240	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
967	const_eio (SYNC_FILE_RANGE_WRITE)	1241	const_eio (SYNC_FILE_RANGE_WRITE)
968	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1242	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
969		1243
970	const_eio (FALLOC_FL_KEEP_SIZE)	1244	const_eio (FALLOC_FL_KEEP_SIZE)
		1245	const_eio (FALLOC_FL_PUNCH_HOLE)
		1246	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1247	const_eio (FALLOC_FL_ZERO_RANGE)
		1248	const_eio (FALLOC_FL_INSERT_RANGE)
		1249	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1250
		1251	const_eio (RENAME_NOREPLACE)
		1252	const_eio (RENAME_EXCHANGE)
		1253	const_eio (RENAME_WHITEOUT)
971		1254
972	const_eio (READDIR_DENTS)	1255	const_eio (READDIR_DENTS)
973	const_eio (READDIR_DIRS_FIRST)	1256	const_eio (READDIR_DIRS_FIRST)
974	const_eio (READDIR_STAT_ORDER)	1257	const_eio (READDIR_STAT_ORDER)
975	const_eio (READDIR_FOUND_UNKNOWN)	1258	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1043	PROTOTYPE: $	1326	PROTOTYPE: $
1044	CODE:	1327	CODE:
1045	max_outstanding = maxreqs;	1328	max_outstanding = maxreqs;
1046		1329
1047	void	1330	void
1048	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1331	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1049	PPCODE:	1332	PPCODE:
1050	{	1333	{
1051	dREQ;	1334	dREQ;
1052		1335
1053	req->type = EIO_WD_OPEN;	1336	req->type = EIO_WD_OPEN;
…		…
1055		1338
1056	REQ_SEND;	1339	REQ_SEND;
1057	}	1340	}
1058		1341
1059	void	1342	void
1060	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1343	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1061	PPCODE:	1344	PPCODE:
1062	{	1345	{
1063	dREQ;	1346	dREQ;
1064		1347
1065	req->type = EIO_OPEN;	1348	req->type = EIO_OPEN;
…		…
1069		1352
1070	REQ_SEND;	1353	REQ_SEND;
1071	}	1354	}
1072		1355
1073	void	1356	void
1074	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1357	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1075	ALIAS:	1358	ALIAS:
1076	aio_fsync = EIO_FSYNC	1359	aio_fsync = EIO_FSYNC
1077	aio_fdatasync = EIO_FDATASYNC	1360	aio_fdatasync = EIO_FDATASYNC
1078	aio_syncfs = EIO_SYNCFS	1361	aio_syncfs = EIO_SYNCFS
1079	PPCODE:	1362	PPCODE:
1080	{	1363	{
1081	int fd = s_fileno_croak (fh, 0);	1364	int fd = s_fileno_croak (fh, 0);
1082	dREQ;	1365	dREQ;
1083		1366
1084	req->type = ix;	1367	req->type = ix;
1085	req->sv1 = newSVsv (fh);	1368	req->sv1 = newSVsv (fh);
1086	req->int1 = fd;	1369	req->int1 = fd;
1087		1370
1088	REQ_SEND (req);	1371	REQ_SEND;
1089	}	1372	}
1090		1373
1091	void	1374	void
1092	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1375	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1093	PPCODE:	1376	PPCODE:
1094	{	1377	{
1095	int fd = s_fileno_croak (fh, 0);	1378	int fd = s_fileno_croak (fh, 0);
1096	dREQ;	1379	dREQ;
1097		1380
1098	req->type = EIO_SYNC_FILE_RANGE;	1381	req->type = EIO_SYNC_FILE_RANGE;
1099	req->sv1 = newSVsv (fh);	1382	req->sv1 = newSVsv (fh);
1100	req->int1 = fd;	1383	req->int1 = fd;
1101	req->offs = offset;	1384	req->offs = offset;
1102	req->size = nbytes;	1385	req->size = nbytes;
1103	req->int2 = flags;	1386	req->int2 = flags;
1104		1387
1105	REQ_SEND (req);	1388	REQ_SEND;
1106	}	1389	}
1107		1390
1108	void	1391	void
1109	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1392	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1110	PPCODE:	1393	PPCODE:
1111	{	1394	{
1112	int fd = s_fileno_croak (fh, 0);	1395	int fd = s_fileno_croak (fh, 0);
1113	dREQ;	1396	dREQ;
1114		1397
1115	req->type = EIO_FALLOCATE;	1398	req->type = EIO_FALLOCATE;
1116	req->sv1 = newSVsv (fh);	1399	req->sv1 = newSVsv (fh);
1117	req->int1 = fd;	1400	req->int1 = fd;
1118	req->int2 = mode;	1401	req->int2 = mode;
1119	req->offs = offset;	1402	req->offs = offset;
1120	req->size = len;	1403	req->size = len;
1121		1404
1122	REQ_SEND (req);	1405	REQ_SEND;
1123	}	1406	}
1124		1407
1125	void	1408	void
1126	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1409	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1127	PPCODE:	1410	PPCODE:
1128	{	1411	{
1129	static int close_fd = -1; /* dummy fd to close fds via dup2 */	1412	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1130	int fd = s_fileno_croak (fh, 0);	1413	int fd = s_fileno_croak (fh, 0);
1131	dREQ;	1414	dREQ;
1132		1415
1133	if (expect_false (close_fd < 0))	1416	if (expect_false (close_fd < 0))
1134	{	1417	{
1135	int pipefd [2];	1418	int pipefd [2];
…		…
1151	req->type = EIO_DUP2;	1434	req->type = EIO_DUP2;
1152	req->int1 = close_fd;	1435	req->int1 = close_fd;
1153	req->sv2 = newSVsv (fh);	1436	req->sv2 = newSVsv (fh);
1154	req->int2 = fd;	1437	req->int2 = fd;
1155		1438
1156	REQ_SEND (req);	1439	REQ_SEND;
1157	}	1440	}
1158		1441
1159	void	1442	void
		1443	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1444	PPCODE:
		1445	{
		1446	int fd = s_fileno_croak (fh, 0);
		1447	dREQ;
		1448
		1449	req->type = EIO_SEEK;
		1450	req->sv1 = newSVsv (fh);
		1451	req->int1 = fd;
		1452	req->offs = SvVAL64 (offset);
		1453	req->int2 = whence;
		1454
		1455	REQ_SEND;
		1456	}
		1457
		1458	void
1160	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1459	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1161	ALIAS:	1460	ALIAS:
1162	aio_read = EIO_READ	1461	aio_read = EIO_READ
1163	aio_write = EIO_WRITE	1462	aio_write = EIO_WRITE
1164	PPCODE:	1463	PPCODE:
1165	{	1464	{
…		…
1181	len = svlen - dataoffset;	1480	len = svlen - dataoffset;
1182	}	1481	}
1183	else	1482	else
1184	{	1483	{
1185	/* read: check type and grow scalar as necessary */	1484	/* read: check type and grow scalar as necessary */
1186	SvUPGRADE (data, SVt_PV);	1485	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1187	svptr = SvGROW (data, len + dataoffset + 1);	1486	svptr = sv_grow (data, len + dataoffset + 1);
		1487	else if (SvCUR (data) < len + dataoffset)
		1488	croak ("length + dataoffset outside of scalar, and cannot grow");
1188	}	1489	}
1189		1490
1190	{	1491	{
1191	dREQ;	1492	dREQ;
1192		1493
…		…
1208	REQ_SEND;	1509	REQ_SEND;
1209	}	1510	}
1210	}	1511	}
1211		1512
1212	void	1513	void
		1514	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1515	ALIAS:
		1516	aio_ioctl = EIO_IOCTL
		1517	aio_fcntl = EIO_FCNTL
		1518	PPCODE:
		1519	{
		1520	int fd = s_fileno_croak (fh, 0);
		1521	char *svptr;
		1522
		1523	if (SvPOK (arg) || !SvNIOK (arg))
		1524	{
		1525	STRLEN svlen;
		1526	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1527	#ifdef IOCPARM_LEN
		1528	STRLEN need = IOCPARM_LEN (request);
		1529	#else
		1530	STRLEN need = 256;
		1531	#endif
		1532
		1533	if (svlen < need)
		1534	svptr = SvGROW (arg, need);
		1535	}
		1536	else
		1537	svptr = (char *)SvIV (arg);
		1538
		1539	{
		1540	dREQ;
		1541
		1542	req->type = ix;
		1543	req->sv1 = newSVsv (fh);
		1544	req->int1 = fd;
		1545	req->int2 = (long)request;
		1546	req->sv2 = SvREFCNT_inc (arg);
		1547	req->ptr2 = svptr;
		1548
		1549	REQ_SEND;
		1550	}
		1551	}
		1552
		1553	void
1213	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1554	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1214	ALIAS:	1555	ALIAS:
1215	aio_readlink = EIO_READLINK	1556	aio_readlink = EIO_READLINK
1216	aio_realpath = EIO_REALPATH	1557	aio_realpath = EIO_REALPATH
1217	PPCODE:	1558	PPCODE:
1218	{	1559	{
…		…
1223		1564
1224	REQ_SEND;	1565	REQ_SEND;
1225	}	1566	}
1226		1567
1227	void	1568	void
1228	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1569	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1229	PPCODE:	1570	PPCODE:
1230	{	1571	{
1231	int ifd = s_fileno_croak (in_fh , 0);	1572	int ifd = s_fileno_croak (in_fh , 0);
1232	int ofd = s_fileno_croak (out_fh, 1);	1573	int ofd = s_fileno_croak (out_fh, 1);
1233	dREQ;	1574	dREQ;
1234		1575
1235	req->type = EIO_SENDFILE;	1576	req->type = EIO_SENDFILE;
1236	req->sv1 = newSVsv (out_fh);	1577	req->sv1 = newSVsv (out_fh);
1237	req->int1 = ofd;	1578	req->int1 = ofd;
…		…
1242		1583
1243	REQ_SEND;	1584	REQ_SEND;
1244	}	1585	}
1245		1586
1246	void	1587	void
1247	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1588	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1248	PPCODE:	1589	PPCODE:
1249	{	1590	{
1250	int fd = s_fileno_croak (fh, 0);	1591	int fd = s_fileno_croak (fh, 0);
1251	dREQ;	1592	dREQ;
1252		1593
1253	req->type = EIO_READAHEAD;	1594	req->type = EIO_READAHEAD;
1254	req->sv1 = newSVsv (fh);	1595	req->sv1 = newSVsv (fh);
1255	req->int1 = fd;	1596	req->int1 = fd;
…		…
1258		1599
1259	REQ_SEND;	1600	REQ_SEND;
1260	}	1601	}
1261		1602
1262	void	1603	void
1263	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1604	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1264	ALIAS:	1605	ALIAS:
1265	aio_stat = EIO_STAT	1606	aio_stat = EIO_STAT
1266	aio_lstat = EIO_LSTAT	1607	aio_lstat = EIO_LSTAT
1267	aio_statvfs = EIO_STATVFS	1608	aio_statvfs = EIO_STATVFS
1268	PPCODE:	1609	PPCODE:
1269	{	1610	{
1270	dREQ;	1611	dREQ;
1271		1612
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);	1613	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
		1614
1274	REQ_SEND;	1615	REQ_SEND;
1275	}	1616	}
1276		1617
1277	UV	1618	UV
1278	major (UV dev)	1619	major (UV dev)
1279	ALIAS:	1620	ALIAS:
1280	minor = 1	1621	minor = 1
1281	CODE:	1622	CODE:
1282	RETVAL = ix ? major (dev) : minor (dev);	1623	RETVAL = ix ? minor (dev) : major (dev);
1283	OUTPUT:	1624	OUTPUT:
1284	RETVAL	1625	RETVAL
1285		1626
1286	UV	1627	UV
1287	makedev (UV maj, UV min)	1628	makedev (UV maj, UV min)
…		…
1289	RETVAL = makedev (maj, min);	1630	RETVAL = makedev (maj, min);
1290	OUTPUT:	1631	OUTPUT:
1291	RETVAL	1632	RETVAL
1292		1633
1293	void	1634	void
1294	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1635	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1295	PPCODE:	1636	PPCODE:
1296	{	1637	{
1297	dREQ;	1638	dREQ;
1298		1639
1299	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1640	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1302		1643
1303	REQ_SEND;	1644	REQ_SEND;
1304	}	1645	}
1305		1646
1306	void	1647	void
1307	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1648	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1308	PPCODE:	1649	PPCODE:
1309	{	1650	{
1310	dREQ;	1651	dREQ;
1311		1652
1312	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1653	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1314		1655
1315	REQ_SEND;	1656	REQ_SEND;
1316	}	1657	}
1317		1658
1318	void	1659	void
1319	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1660	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:	1661	PPCODE:
1324	{	1662	{
1325	dREQ;	1663	dREQ;
1326		1664
1327	req->int2 = mode;	1665	req->int2 = mode;
…		…
1329		1667
1330	REQ_SEND;	1668	REQ_SEND;
1331	}	1669	}
1332		1670
1333	void	1671	void
1334	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1672	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1335	PPCODE:	1673	PPCODE:
1336	{	1674	{
1337	dREQ;	1675	dREQ;
1338		1676
1339	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1677	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1342		1680
1343	REQ_SEND;	1681	REQ_SEND;
1344	}	1682	}
1345		1683
1346	void	1684	void
1347	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1685	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1348	PPCODE:	1686	PPCODE:
1349	{	1687	{
1350	dREQ;	1688	dREQ;
1351		1689
1352	req->type = EIO_READDIR;	1690	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;	1691	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1356		1692
1357	if (flags & EIO_READDIR_DENTS)	1693	if (flags & EIO_READDIR_DENTS)
1358	req->int1 |= EIO_READDIR_CUSTOM2;	1694	req->int1 |= EIO_READDIR_CUSTOM2;
1359		1695
		1696	req_set_path1 (req, pathname);
		1697
1360	REQ_SEND;	1698	REQ_SEND;
1361	}	1699	}
1362		1700
1363	void	1701	void
		1702	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1703	PPCODE:
		1704	{
		1705	dREQ;
		1706
		1707	req->type = EIO_MKDIR;
		1708	req->int2 = mode;
		1709	req_set_path1 (req, pathname);
		1710
		1711	REQ_SEND;
		1712	}
		1713
		1714	void
1364	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1715	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1365	ALIAS:	1716	ALIAS:
1366	aio_unlink = EIO_UNLINK	1717	aio_unlink = EIO_UNLINK
1367	aio_rmdir = EIO_RMDIR	1718	aio_rmdir = EIO_RMDIR
1368	aio_readdir = EIO_READDIR	1719	aio_readdir = EIO_READDIR
1369	PPCODE:	1720	PPCODE:
…		…
1375		1726
1376	REQ_SEND;	1727	REQ_SEND;
1377	}	1728	}
1378		1729
1379	void	1730	void
1380	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1731	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1381	ALIAS:	1732	ALIAS:
1382	aio_link = EIO_LINK	1733	aio_link = EIO_LINK
1383	aio_symlink = EIO_SYMLINK	1734	aio_symlink = EIO_SYMLINK
1384	aio_rename = EIO_RENAME	1735	aio_rename = EIO_RENAME
1385	PPCODE:	1736	PPCODE:
1386	{	1737	{
		1738	eio_wd wd2 = 0;
1387	dREQ;	1739	dREQ;
1388	eio_wd wd2;
1389		1740
1390	req->type = ix;	1741	req->type = ix;
1391	req_set_path1 (req, oldpath);	1742	req_set_path1 (req, oldpath);
1392	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);	1743	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1393	req->int3 = (long)wd2;	1744	req->int3 = (long)wd2;
1394		1745
1395	REQ_SEND;	1746	REQ_SEND;
1396	}	1747	}
1397		1748
1398	void	1749	void
		1750	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1751	PPCODE:
		1752	{
		1753	eio_wd wd2 = 0;
		1754	dREQ;
		1755
		1756	req->type = EIO_RENAME;
		1757	req_set_path1 (req, oldpath);
		1758	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1759	req->int2 = flags;
		1760	req->int3 = (long)wd2;
		1761
		1762	REQ_SEND;
		1763	}
		1764
		1765	void
1399	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1766	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1400	PPCODE:	1767	PPCODE:
1401	{	1768	{
1402	dREQ;	1769	dREQ;
1403		1770
1404	req->type = EIO_MKNOD;	1771	req->type = EIO_MKNOD;
…		…
1408		1775
1409	REQ_SEND;	1776	REQ_SEND;
1410	}	1777	}
1411		1778
1412	void	1779	void
1413	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1780	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1414	ALIAS:	1781	ALIAS:
1415	aio_mtouch = EIO_MTOUCH	1782	aio_mtouch = EIO_MTOUCH
1416	aio_msync = EIO_MSYNC	1783	aio_msync = EIO_MSYNC
1417	PPCODE:	1784	PPCODE:
1418	{	1785	{
1419	STRLEN svlen;	1786	STRLEN svlen;
1420	char *svptr = SvPVbyte (data, svlen);	1787	char *svptr = SvPVbyte (data, svlen);
1421	UV len = SvUV (length);	1788	UV len = SvUV (length);
		1789
		1790	if (flags < 0)
		1791	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1422		1792
1423	if (offset < 0)	1793	if (offset < 0)
1424	offset += svlen;	1794	offset += svlen;
1425		1795
1426	if (offset < 0 || offset > svlen)	1796	if (offset < 0 || offset > svlen)
…		…
1441	REQ_SEND;	1811	REQ_SEND;
1442	}	1812	}
1443	}	1813	}
1444		1814
1445	void	1815	void
1446	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1816	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1447	PPCODE:	1817	PPCODE:
1448	{	1818	{
1449	STRLEN svlen;	1819	STRLEN svlen;
1450	char *svptr = SvPVbyte (data, svlen);	1820	char *svptr = SvPVbyte (data, svlen);
1451	UV len = SvUV (length);	1821	UV len = SvUV (length);
…		…
1470	REQ_SEND;	1840	REQ_SEND;
1471	}	1841	}
1472	}	1842	}
1473		1843
1474	void	1844	void
1475	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1845	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1476	PPCODE:	1846	PPCODE:
1477	{	1847	{
1478	dREQ;	1848	dREQ;
1479		1849
1480	req->type = EIO_MLOCKALL;	1850	req->type = EIO_MLOCKALL;
…		…
1482		1852
1483	REQ_SEND;	1853	REQ_SEND;
1484	}	1854	}
1485		1855
1486	void	1856	void
		1857	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1858	PPCODE:
		1859	{
		1860	int fd = s_fileno_croak (fh, 0);
		1861	dREQ;
		1862
		1863	req->type = EIO_CUSTOM;
		1864	req->sv1 = newSVsv (fh);
		1865	req->int1 = fd;
		1866
		1867	req->feed = fiemap;
		1868	#if HAVE_FIEMAP
		1869	/* keep our fingers crossed that the next two types are 64 bit */
		1870	req->offs = start;
		1871	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1872	req->int2 = flags;
		1873	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1874	#endif
		1875
		1876	REQ_SEND;
		1877	}
		1878
		1879	void
		1880	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1881	PPCODE:
		1882	{
		1883	char *svptr = 0;
		1884
		1885	sv_clear_foreign (data);
		1886
		1887	if (length) /* known length, directly read into scalar */
		1888	{
		1889	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1890	svptr = sv_grow (data, length + 1);
		1891	else if (SvCUR (data) < length)
		1892	croak ("length outside of scalar, and cannot grow");
		1893	else
		1894	svptr = SvPVbyte_nolen (data);
		1895	}
		1896
		1897	{
		1898	dREQ;
		1899
		1900	req->type = EIO_SLURP;
		1901	req_set_path1 (req, pathname);
		1902	req->offs = offset;
		1903	req->size = length;
		1904	req->sv2 = SvREFCNT_inc (data);
		1905	req->ptr2 = svptr;
		1906
		1907	if (!SvREADONLY (data))
		1908	{
		1909	SvREADONLY_on (data);
		1910	req->flags |= FLAG_SV2_RO_OFF;
		1911	}
		1912
		1913	REQ_SEND;
		1914	}
		1915	}
		1916
		1917	void
1487	aio_busy (double delay, SV *callback=&PL_sv_undef)	1918	aio_busy (double delay, SV *callback = &PL_sv_undef)
1488	PPCODE:	1919	PPCODE:
1489	{	1920	{
1490	dREQ;	1921	dREQ;
1491		1922
1492	req->type = EIO_BUSY;	1923	req->type = EIO_BUSY;
…		…
1494		1925
1495	REQ_SEND;	1926	REQ_SEND;
1496	}	1927	}
1497		1928
1498	void	1929	void
1499	aio_group (SV *callback=&PL_sv_undef)	1930	aio_group (SV *callback = &PL_sv_undef)
1500	PPCODE:	1931	PPCODE:
1501	{	1932	{
1502	dREQ;	1933	dREQ;
1503		1934
1504	req->type = EIO_GROUP;	1935	req->type = EIO_GROUP;
1505		1936
		1937	PUTBACK;
1506	req_submit (req);	1938	req_submit (req);
		1939	SPAGAIN;
		1940
1507	XPUSHs (req_sv (req, aio_grp_stash));	1941	XPUSHs (req_sv (req, aio_grp_stash));
1508	}	1942	}
1509		1943
1510	void	1944	void
1511	aio_nop (SV *callback=&PL_sv_undef)	1945	aio_nop (SV *callback = &PL_sv_undef)
1512	ALIAS:	1946	ALIAS:
1513	aio_nop = EIO_NOP	1947	aio_nop = EIO_NOP
1514	aio_sync = EIO_SYNC	1948	aio_sync = EIO_SYNC
1515	PPCODE:	1949	PPCODE:
1516	{	1950	{
…		…
1520		1954
1521	REQ_SEND;	1955	REQ_SEND;
1522	}	1956	}
1523		1957
1524	int	1958	int
1525	aioreq_pri (int pri = 0)	1959	aioreq_pri (int pri = NO_INIT)
1526	CODE:	1960	CODE:
1527	RETVAL = next_pri;	1961	RETVAL = next_pri;
1528	if (items > 0)	1962	if (items > 0)
1529	{	1963	{
1530	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1964	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1620	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2054	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1621	OUTPUT:	2055	OUTPUT:
1622	RETVAL	2056	RETVAL
1623		2057
1624	void	2058	void
1625	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2059	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1626	PPCODE:	2060	PPCODE:
1627	sv_unmagic (scalar, MMAP_MAGIC);	2061	sv_clear_foreign (scalar);
1628	{	2062	{
1629	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2063	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1630	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2064	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1631	if (addr == (void *)-1)	2065	if (addr == (void *)-1)
1632	XSRETURN_NO;	2066	XSRETURN_NO;
1633		2067
1634	sv_force_normal (scalar);	2068	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		2069
1642	if (!(prot & PROT_WRITE))	2070	if (!(prot & PROT_WRITE))
1643	SvREADONLY_on (scalar);	2071	SvREADONLY_on (scalar);
1644		2072
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;	2073	XSRETURN_YES;
1654	}	2074	}
1655		2075
1656	void	2076	void
1657	munmap (SV *scalar)	2077	munmap (SV *scalar)
1658	CODE:	2078	CODE:
1659	sv_unmagic (scalar, MMAP_MAGIC);	2079	sv_clear_foreign (scalar);
		2080
		2081	SV *
		2082	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2083	CODE:
		2084	{
		2085	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2086	void *new;
		2087
		2088	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2089	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2090
		2091	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2092
		2093	RETVAL = &PL_sv_no;
		2094
		2095	if (new != (void *)-1)
		2096	{
		2097	RETVAL = new == (void *)mg->mg_ptr
		2098	? newSVpvn ("0 but true", 10)
		2099	: &PL_sv_yes;
		2100
		2101	mg->mg_ptr = (char *)new;
		2102	mg->mg_obj = (SV *)new_length;
		2103
		2104	SvPVX (scalar) = mg->mg_ptr;
		2105	SvCUR_set (scalar, new_length);
		2106	}
		2107	}
		2108	OUTPUT:
		2109	RETVAL
1660		2110
1661	int	2111	int
1662	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2112	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1663	ALIAS:	2113	ALIAS:
1664	mprotect = 1	2114	mprotect = 1
1665	CODE:	2115	CODE:
1666	{	2116	{
1667	STRLEN svlen;	2117	STRLEN svlen;
1668	void *addr = SvPVbyte (scalar, svlen);	2118	void *addr = SvPVbyte (scalar, svlen);
1669	size_t len = SvUV (length);	2119	STRLEN len = SvUV (length);
1670		2120
1671	if (offset < 0)	2121	if (offset < 0)
1672	offset += svlen;	2122	offset += svlen;
1673		2123
1674	if (offset < 0 || offset > svlen)	2124	if (offset < 0 || offset > svlen)
…		…
1688	}	2138	}
1689	OUTPUT:	2139	OUTPUT:
1690	RETVAL	2140	RETVAL
1691		2141
1692	int	2142	int
1693	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2143	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1694	CODE:	2144	CODE:
1695	{	2145	{
1696	STRLEN svlen;	2146	STRLEN svlen;
1697	void *addr = SvPVbyte (scalar, svlen);	2147	void *addr = SvPVbyte (scalar, svlen);
1698	size_t len = SvUV (length);	2148	size_t len = SvUV (length);
1699		2149
1700	if (offset < 0)	2150	if (offset < 0)
1701	offset += svlen;	2151	offset += svlen;
1702		2152
…		…
1709	addr = (void *)(((intptr_t)addr) + offset);	2159	addr = (void *)(((intptr_t)addr) + offset);
1710	eio_page_align (&addr, &len);	2160	eio_page_align (&addr, &len);
1711	#if _POSIX_MEMLOCK_RANGE	2161	#if _POSIX_MEMLOCK_RANGE
1712	RETVAL = munlock (addr, len);	2162	RETVAL = munlock (addr, len);
1713	#else	2163	#else
1714	RETVAL = ((errno = ENOSYS), -1);	2164	RETVAL = EIO_ENOSYS ();
1715	#endif	2165	#endif
1716	}	2166	}
1717	OUTPUT:	2167	OUTPUT:
1718	RETVAL	2168	RETVAL
1719		2169
…		…
1721	munlockall ()	2171	munlockall ()
1722	CODE:	2172	CODE:
1723	#if _POSIX_MEMLOCK	2173	#if _POSIX_MEMLOCK
1724	munlockall ();	2174	munlockall ();
1725	#else	2175	#else
1726	RETVAL = -1;	2176	RETVAL = EIO_ENOSYS ();
1727	errno = ENOSYS;
1728	#endif	2177	#endif
1729	OUTPUT:	2178	OUTPUT:
1730	RETVAL	2179	RETVAL
		2180
		2181	int
		2182	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2183	CODE:
		2184	{
		2185	#if HAVE_LINUX_SPLICE
		2186	loff_t off_in_, off_out_;
		2187	RETVAL = splice (
		2188	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2189	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2190	length, flags
		2191	);
		2192	#else
		2193	RETVAL = EIO_ENOSYS ();
		2194	#endif
		2195	}
		2196	OUTPUT:
		2197	RETVAL
		2198
		2199	int
		2200	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2201	CODE:
		2202	#if HAVE_LINUX_SPLICE
		2203	RETVAL = tee (rfh, wfh, length, flags);
		2204	#else
		2205	RETVAL = EIO_ENOSYS ();
		2206	#endif
		2207	OUTPUT:
		2208	RETVAL
		2209
		2210	int
		2211	pipesize (aio_rfd rfh, int new_size = -1)
		2212	PROTOTYPE: $;$
		2213	CODE:
		2214	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2215	if (new_size >= 0)
		2216	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2217	else
		2218	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2219	#else
		2220	errno = ENOSYS;
		2221	RETVAL = -1;
		2222	#endif
		2223	OUTPUT:
		2224	RETVAL
		2225
		2226	void
		2227	pipe2 (int flags = 0)
		2228	PROTOTYPE: ;$
		2229	PPCODE:
		2230	{
		2231	int fd[2];
		2232	int res;
		2233
		2234	if (flags)
		2235	#if HAVE_PIPE2
		2236	res = pipe2 (fd, flags);
		2237	#else
		2238	res = (errno = ENOSYS, -1);
		2239	#endif
		2240	else
		2241	res = pipe (fd);
		2242
		2243	if (!res)
		2244	{
		2245	EXTEND (SP, 2);
		2246	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2247	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2248	}
		2249	}
		2250
		2251	void
		2252	eventfd (unsigned int initval = 0, int flags = 0)
		2253	PPCODE:
		2254	{
		2255	int fd;
		2256	#if HAVE_EVENTFD
		2257	fd = eventfd (initval, flags);
		2258	#else
		2259	fd = (errno = ENOSYS, -1);
		2260	#endif
		2261
		2262	XPUSHs (newmortalFH (fd, O_RDWR));
		2263	}
		2264
		2265	void
		2266	timerfd_create (int clockid, int flags = 0)
		2267	PPCODE:
		2268	{
		2269	int fd;
		2270	#if HAVE_TIMERFD
		2271	fd = timerfd_create (clockid, flags);
		2272	#else
		2273	fd = (errno = ENOSYS, -1);
		2274	#endif
		2275
		2276	XPUSHs (newmortalFH (fd, O_RDWR));
		2277	}
		2278
		2279	void
		2280	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2281	PPCODE:
		2282	{
		2283	int fd = s_fileno_croak (fh, 0);
		2284	#if HAVE_TIMERFD
		2285	int res;
		2286	struct itimerspec its, ots;
		2287
		2288	ts_set (&its.it_interval, interval);
		2289	ts_set (&its.it_value , value);
		2290	res = timerfd_settime (fd, flags, &its, &ots);
		2291
		2292	if (!res)
		2293	{
		2294	EXTEND (SP, 2);
		2295	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2296	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2297	}
		2298	#else
		2299	errno = ENOSYS;
		2300	#endif
		2301	}
		2302
		2303	void
		2304	timerfd_gettime (SV *fh)
		2305	PPCODE:
		2306	{
		2307	int fd = s_fileno_croak (fh, 0);
		2308	#if HAVE_TIMERFD
		2309	int res;
		2310	struct itimerspec ots;
		2311	res = timerfd_gettime (fd, &ots);
		2312
		2313	if (!res)
		2314	{
		2315	EXTEND (SP, 2);
		2316	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2317	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2318	}
		2319	#else
		2320	errno = ENOSYS;
		2321	#endif
		2322	}
		2323
		2324	UV
		2325	get_fdlimit ()
		2326	CODE:
		2327	#if HAVE_RLIMITS
		2328	struct rlimit rl;
		2329	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2330	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2331	#endif
		2332	XSRETURN_UNDEF;
		2333	OUTPUT:
		2334	RETVAL
		2335
		2336	void
		2337	min_fdlimit (UV limit = 0x7fffffffU)
		2338	CODE:
		2339	{
		2340	#if HAVE_RLIMITS
		2341	struct rlimit rl;
		2342	rlim_t orig_rlim_max;
		2343	UV bit;
		2344
		2345	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2346	goto fail;
		2347
		2348	if (rl.rlim_cur == RLIM_INFINITY)
		2349	XSRETURN_YES;
		2350
		2351	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2352
		2353	if (rl.rlim_cur < limit)
		2354	{
		2355	rl.rlim_cur = limit;
		2356
		2357	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2358	rl.rlim_max = rl.rlim_cur;
		2359	}
		2360
		2361	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2362	XSRETURN_YES;
		2363
		2364	if (errno == EPERM)
		2365	{
		2366	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2367	/* our limit overflows a system-wide limit */
		2368	/* try an adaptive algorithm, but do not lower the hardlimit */
		2369	rl.rlim_max = 0;
		2370	for (bit = 0x40000000U; bit; bit >>= 1)
		2371	{
		2372	rl.rlim_max |= bit;
		2373	rl.rlim_cur = rl.rlim_max;
		2374
		2375	/* nevr decrease the hard limit */
		2376	if (rl.rlim_max < orig_rlim_max)
		2377	break;
		2378
		2379	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2380	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2381	}
		2382
		2383	/* now, raise the soft limit to the max permitted */
		2384	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2385	{
		2386	rl.rlim_cur = rl.rlim_max;
		2387	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2388	errno = EPERM;
		2389	}
		2390	}
		2391	#endif
		2392	fail:
		2393	XSRETURN_UNDEF;
		2394	}
1731		2395
1732	void _on_next_submit (SV *cb)	2396	void _on_next_submit (SV *cb)
1733	CODE:	2397	CODE:
1734	SvREFCNT_dec (on_next_submit);	2398	SvREFCNT_dec (on_next_submit);
1735	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2399	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1736		2400
1737	PROTOTYPES: DISABLE	2401	PROTOTYPES: DISABLE
1738		2402
1739	MODULE = IO::AIO PACKAGE = IO::AIO::WD	2403	MODULE = IO::AIO PACKAGE = IO::AIO::WD
1740		2404
		2405	BOOT:
		2406	{
		2407	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2408	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2409	}
		2410
1741	void	2411	void
1742	DESTROY (SV *self)	2412	DESTROY (SV *self)
1743	CODE:	2413	CODE:
1744	{	2414	{
1745	aio_wd wd = SvAIO_WD (self);	2415	aio_wd wd = SvAIO_WD (self);
1746	#if HAVE_AT	2416	#if HAVE_AT
		2417	{
1747	SV *callback = &PL_sv_undef;	2418	SV *callback = &PL_sv_undef;
1748	dREQ; /* clobbers next_pri :/ */	2419	dREQ; /* clobbers next_pri :/ */
		2420	next_pri = req->pri; /* restore next_pri */
		2421	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1749	req->type = EIO_WD_CLOSE;	2422	req->type = EIO_WD_CLOSE;
1750	req->wd = wd;	2423	req->wd = wd;
1751	REQ_SEND;	2424	REQ_SEND;
		2425	}
1752	#else	2426	#else
1753	eio_wd_close_sync (wd);	2427	eio_wd_close_sync (wd);
1754	#endif	2428	#endif
1755	}	2429	}
1756		2430
…		…
1760	cancel (aio_req_ornot req)	2434	cancel (aio_req_ornot req)
1761	CODE:	2435	CODE:
1762	eio_cancel (req);	2436	eio_cancel (req);
1763		2437
1764	void	2438	void
1765	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2439	cb (aio_req_ornot req, SV *callback = NO_INIT)
1766	PPCODE:	2440	PPCODE:
1767	{	2441	{
1768	if (GIMME_V != G_VOID)	2442	if (GIMME_V != G_VOID)
1769	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2443	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1770		2444
1771	if (items > 1)	2445	if (items > 1)
1772	{	2446	{
1773	SV *cb_cv =get_cb (callback);	2447	SV *cb_cv = get_cb (callback);
1774		2448
1775	SvREFCNT_dec (req->callback);	2449	SvREFCNT_dec (req->callback);
1776	req->callback = SvREFCNT_inc (cb_cv);	2450	req->callback = SvREFCNT_inc (cb_cv);
1777	}	2451	}
1778	}	2452	}
…		…
1835	limit (aio_req grp, int limit)	2509	limit (aio_req grp, int limit)
1836	CODE:	2510	CODE:
1837	eio_grp_limit (grp, limit);	2511	eio_grp_limit (grp, limit);
1838		2512
1839	void	2513	void
1840	feed (aio_req grp, SV *callback=&PL_sv_undef)	2514	feed (aio_req grp, SV *callback = &PL_sv_undef)
1841	CODE:	2515	CODE:
1842	{	2516	{
1843	SvREFCNT_dec (grp->sv2);	2517	SvREFCNT_dec (grp->sv2);
1844	grp->sv2 = newSVsv (callback);	2518	grp->sv2 = newSVsv (callback);
1845	grp->feed = aio_grp_feed;	2519	grp->feed = aio_grp_feed;

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