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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.182 by root, Thu May 19 22:57:04 2011 UTC vs.
Revision 1.250 by root, Fri Sep 22 05:20:39 2017 UTC

…		…
11	#include <stddef.h>	11	#include <stddef.h>
12	#include <stdlib.h>	12	#include <stdlib.h>
13	#include <errno.h>	13	#include <errno.h>
14	#include <sys/types.h>	14	#include <sys/types.h>
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <sys/statvfs.h>
17	#include <limits.h>	16	#include <limits.h>
18	#include <fcntl.h>	17	#include <fcntl.h>
19	#include <sched.h>	18	#include <sched.h>
20		19
21	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22	# include <sys/mman.h>	21	# include <sys/mman.h>
23	#endif	22	#endif
24		23
		24	/* the incompetent fool that created musl keeps __linux__, refuses
		25	* to implement any linux standard apis, and also has no way to test
		26	* for his broken iplementation. 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
		36	#endif
		37
25	/* perl namespace pollution */	38	/* perl namespace pollution */
26	#undef VERSION	39	#undef VERSION
27
28	#ifdef _WIN32
29
30	# define EIO_STRUCT_DIRENT Direntry_t
31	# undef malloc
32	# undef free
33
34	// perl overrides all those nice win32 functions
35	# undef open
36	# undef read
37	# undef write
38	# undef send
39	# undef recv
40	# undef stat
41	# undef fstat
42	# define lstat stat
43	# undef truncate
44	# undef ftruncate
45	# undef open
46	# undef close
47	# undef unlink
48	# undef rmdir
49	# undef rename
50	# undef lseek
51
52	# define chown(a,b,c) (errno = ENOSYS, -1)
53	# define fchown(a,b,c) (errno = ENOSYS, -1)
54	# define fchmod(a,b) (errno = ENOSYS, -1)
55	# define symlink(a,b) (errno = ENOSYS, -1)
56	# define readlink(a,b,c) (errno = ENOSYS, -1)
57	# define mknod(a,b,c) (errno = ENOSYS, -1)
58	# define truncate(a,b) (errno = ENOSYS, -1)
59	# define ftruncate(fd,o) chsize ((fd), (o))
60	# define fsync(fd) _commit (fd)
61	# define opendir(fd) (errno = ENOSYS, 0)
62	# define readdir(fd) (errno = ENOSYS, -1)
63	# define closedir(fd) (errno = ENOSYS, -1)
64	# define mkdir(a,b) mkdir (a)
65
66	#else
67
68	# include <sys/time.h>
69	# include <sys/select.h>
70	# include <unistd.h>
71	# include <utime.h>
72	# include <signal.h>
73	# define EIO_STRUCT_DIRENT struct dirent
74
75	#endif
76		40
77	/* perl stupidly overrides readdir and maybe others */	41	/* perl stupidly overrides readdir and maybe others */
78	/* with thread-unsafe versions, imagine that :( */	42	/* with thread-unsafe versions, imagine that :( */
79	#undef readdir	43	#undef readdir
80	#undef opendir	44	#undef opendir
81	#undef closedir	45	#undef closedir
82		46
		47	#ifdef _WIN32
		48
		49	// perl overrides all those nice libc functions
		50
		51	#undef malloc
		52	#undef free
		53	#undef open
		54	#undef read
		55	#undef write
		56	#undef send
		57	#undef recv
		58	#undef stat
		59	#undef lstat
		60	#undef fstat
		61	#undef truncate
		62	#undef ftruncate
		63	#undef open
		64	#undef link
		65	#undef close
		66	#undef unlink
		67	#undef mkdir
		68	#undef rmdir
		69	#undef rename
		70	#undef lseek
		71	#undef opendir
		72	#undef readdir
		73	#undef closedir
		74	#undef chmod
		75	#undef fchmod
		76	#undef dup
		77	#undef dup2
		78	#undef abort
		79	#undef pipe
		80
		81	#define EIO_STRUCT_STAT struct _stati64
83	#define EIO_STRUCT_STAT Stat_t	82	#define EIO_STRUCT_STATI64
84		83
85	/* use NV for 32 bit perls as it allows larger offsets */
86	#if IVSIZE >= 8
87	# define VAL64 IV
88	# define SvVAL64 SvIV
89	# define newSVval64 newSViv
90	#else	84	#else
91	# define VAL64 NV	85
92	# define SvVAL64 SvNV	86	#include <sys/time.h>
93	# define newSVval64 newSVnv	87	#include <sys/select.h>
		88	#include <unistd.h>
		89	#include <utime.h>
		90	#include <signal.h>
		91
		92	#define EIO_STRUCT_STAT Stat_t
		93
94	#endif	94	#endif
95		95
96	/*****************************************************************************/	96	/*****************************************************************************/
97		97
98	#if __GNUC__ >= 3	98	#if __GNUC__ >= 3
…		…
104	#define expect_false(expr) expect ((expr) != 0, 0)	104	#define expect_false(expr) expect ((expr) != 0, 0)
105	#define expect_true(expr) expect ((expr) != 0, 1)	105	#define expect_true(expr) expect ((expr) != 0, 1)
106		106
107	/*****************************************************************************/	107	/*****************************************************************************/
108		108
		109	#include "libeio/config.h"
		110
		111	#if HAVE_RLIMITS
		112	#include <sys/time.h>
		113	#include <sys/resource.h>
		114	#endif
		115
109	typedef SV SV8; /* byte-sv, used for argument-checking */	116	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	117	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	118	typedef int aio_wfd; /* write file descriptor */
112		119
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	120	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		121
115	#define EIO_REQ_MEMBERS \	122	#define EIO_REQ_MEMBERS \
116	SV *callback; \	123	SV *callback; \
117	SV *sv1, *sv2; \	124	SV *sv1, *sv2; \
		125	SV *sv3, *sv4; \
118	STRLEN stroffset; \	126	STRLEN stroffset; \
119	SV *self;	127	SV *self;
120		128
121	#define EIO_NO_WRAPPERS 1	129	#define EIO_NO_WRAPPERS 1
122		130
123	#include "libeio/config.h"
124	#include "libeio/eio.h"	131	#include "libeio/eio.h"
125		132
126	/* Linux/others */	133	static int req_invoke (eio_req *req);
127	#ifndef O_ASYNC	134	#define EIO_FINISH(req) req_invoke (req)
128	# define O_ASYNC 0	135	static void req_destroy (eio_req *grp);
129	#endif	136	#define EIO_DESTROY(req) req_destroy (req)
130	#ifndef O_DIRECT
131	# define O_DIRECT 0
132	#endif
133	#ifndef O_NOATIME
134	# define O_NOATIME 0
135	#endif
136		137
137	/* POSIX */	138	#include "libeio/eio.c"
138	#ifndef O_CLOEXEC
139	# define O_CLOEXEC 0
140	#endif
141	#ifndef O_NOFOLLOW
142	# define O_NOFOLLOW 0
143	#endif
144	#ifndef O_NOCTTY
145	# define O_NOCTTY 0
146	#endif
147	#ifndef O_NONBLOCK
148	# define O_NONBLOCK 0
149	#endif
150	#ifndef O_EXEC
151	# define O_EXEC 0
152	#endif
153	#ifndef O_SEARCH
154	# define O_SEARCH 0
155	#endif
156	#ifndef O_DIRECTORY
157	# define O_DIRECTORY 0
158	#endif
159	#ifndef O_DSYNC
160	# define O_DSYNC 0
161	#endif
162	#ifndef O_RSYNC
163	# define O_RSYNC 0
164	#endif
165	#ifndef O_SYNC
166	# define O_SYNC 0
167	#endif
168	#ifndef O_TTY_INIT
169	# define O_TTY_INIT 0
170	#endif
171
172	#ifndef POSIX_FADV_NORMAL
173	# define POSIX_FADV_NORMAL 0
174	#endif
175	#ifndef POSIX_FADV_SEQUENTIAL
176	# define POSIX_FADV_SEQUENTIAL 0
177	#endif
178	#ifndef POSIX_FADV_RANDOM
179	# define POSIX_FADV_RANDOM 0
180	#endif
181	#ifndef POSIX_FADV_NOREUSE
182	# define POSIX_FADV_NOREUSE 0
183	#endif
184	#ifndef POSIX_FADV_WILLNEED
185	# define POSIX_FADV_WILLNEED 0
186	#endif
187	#ifndef POSIX_FADV_DONTNEED
188	# define POSIX_FADV_DONTNEED 0
189	#endif
190		139
191	#if !HAVE_POSIX_FADVISE	140	#if !HAVE_POSIX_FADVISE
192	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	141	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
193	#endif	142	#endif
194		143
195	#ifndef POSIX_MADV_NORMAL
196	# define POSIX_MADV_NORMAL 0
197	#endif
198	#ifndef POSIX_MADV_SEQUENTIAL
199	# define POSIX_MADV_SEQUENTIAL 0
200	#endif
201	#ifndef POSIX_MADV_RANDOM
202	# define POSIX_MADV_RANDOM 0
203	#endif
204	#ifndef POSIX_MADV_WILLNEED
205	# define POSIX_MADV_WILLNEED 0
206	#endif
207	#ifndef POSIX_MADV_DONTNEED
208	# define POSIX_MADV_DONTNEED 0
209	#endif
210
211	#if !HAVE_POSIX_MADVISE	144	#if !HAVE_POSIX_MADVISE
212	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	145	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
213	#endif
214
215	#ifndef PROT_NONE
216	# define PROT_NONE 0
217	#endif
218	#ifndef PROT_READ
219	# define PROT_READ 0
220	#endif
221	#ifndef PROT_WRITE
222	# define PROT_READ 0
223	#endif
224	#ifndef PROT_EXEC
225	# define PROT_EXEC 0
226	#endif
227
228	#ifndef ST_NODEV
229	# define ST_NODEV 0
230	#endif
231	#ifndef ST_NOEXEC
232	# define ST_NOEXEC 0
233	#endif
234	#ifndef ST_SYNCHRONOUS
235	# define ST_SYNCHRONOUS 0
236	#endif
237	#ifndef ST_MANDLOCK
238	# define ST_MANDLOCK 0
239	#endif
240	#ifndef ST_WRITE
241	# define ST_WRITE 0
242	#endif
243	#ifndef ST_APPEND
244	# define ST_APPEND 0
245	#endif
246	#ifndef ST_IMMUTABLE
247	# define ST_IMMUTABLE 0
248	#endif
249	#ifndef ST_NOATIME
250	# define ST_NOATIME 0
251	#endif
252	#ifndef ST_NODIRATIME
253	# define ST_NODIRATIME 0
254	#endif
255	#ifndef ST_RELATIME
256	# define ST_RELATIME 0
257	#endif
258
259	#ifndef S_IFIFO
260	# define S_IFIFO 0
261	#endif
262	#ifndef S_IFCHR
263	# define S_IFCHR 0
264	#endif
265	#ifndef S_IFBLK
266	# define S_IFBLK 0
267	#endif
268	#ifndef S_IFLNK
269	# define S_IFLNK 0
270	#endif
271	#ifndef S_IFREG
272	# define S_IFREG 0
273	#endif
274	#ifndef S_IFDIR
275	# define S_IFDIR 0
276	#endif
277	#ifndef S_IFWHT
278	# define S_IFWHT 0
279	#endif
280	#ifndef S_IFSOCK
281	# define S_IFSOCK 0
282	#endif	146	#endif
283		147
284	#ifndef MAP_ANONYMOUS	148	#ifndef MAP_ANONYMOUS
285	# ifdef MAP_ANON	149	# ifdef MAP_ANON
286	# define MAP_ANONYMOUS MAP_ANON	150	# define MAP_ANONYMOUS MAP_ANON
287	# else	151	# else
288	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	152	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
289	# endif	153	# endif
290	#endif	154	#endif
291	#ifndef MAP_HUGETLB	155
292	# define MAP_HUGETLB 0	156	/* defines all sorts of constants to 0 unless they are already defined */
293	#endif	157	/* also provides const_iv_ and const_niv_ macros for them */
294	#ifndef MAP_LOCKED	158	#include "def0.h"
295	# define MAP_LOCKED 0
296	#endif
297	#ifndef MAP_NORESERVE
298	# define MAP_NORESERVE 0
299	#endif
300	#ifndef MAP_POPULATE
301	# define MAP_POPULATE 0
302	#endif
303	#ifndef MAP_NONBLOCK
304	# define MAP_NONBLOCK 0
305	#endif
306		159
307	#ifndef makedev	160	#ifndef makedev
308	# define makedev(maj,min) (((maj) << 8) | (min))	161	# define makedev(maj,min) (((maj) << 8) | (min))
309	#endif	162	#endif
310	#ifndef major	163	#ifndef major
…		…
312	#endif	165	#endif
313	#ifndef minor	166	#ifndef minor
314	# define minor(dev) ((dev) & 0xff)	167	# define minor(dev) ((dev) & 0xff)
315	#endif	168	#endif
316		169
317	#ifndef PAGESIZE	170	#if PAGESIZE <= 0
318	# define PAGESIZE sysconf (_SC_PAGESIZE)	171	# define PAGESIZE sysconf (_SC_PAGESIZE)
319	#endif	172	#endif
320		173
321	static int req_invoke (eio_req *req);	174	/*****************************************************************************/
322	#define EIO_FINISH(req) req_invoke (req)	175
323	static void req_destroy (eio_req *grp);	176	static void
324	#define EIO_DESTROY(req) req_destroy (req)	177	fiemap (eio_req *req)
		178	{
		179	req->result = -1;
		180
		181	#if HAVE_FIEMAP
		182	/* assume some c99 */
		183	struct fiemap *fiemap = 0;
		184	size_t end_offset;
		185	int count = req->int3;
		186
		187	req->flags |= EIO_FLAG_PTR1_FREE;
		188
		189	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		190	/* increase in 3.5kb steps */
		191	if (count < 0)
		192	count = 8;
		193
		194	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		195	errno = ENOMEM;
		196	if (!fiemap)
		197	return;
		198
		199	req->ptr1 = fiemap;
		200
		201	fiemap->fm_start = req->offs;
		202	fiemap->fm_length = req->size;
		203	fiemap->fm_flags = req->int2;
		204	fiemap->fm_extent_count = count;
		205
		206	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		207	return;
		208
		209	if (req->int3 >= 0 /* not autosizing */
		210	|| !fiemap->fm_mapped_extents /* no more extents */
		211	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		212	goto done;
		213
		214	/* else we have to loop -
		215	* it would be tempting (actually I tried that first) to just query the
		216	* number of extents needed, but linux often feels like not returning all
		217	* extents, without telling us it left any out. this complicates
		218	* this quite a bit.
		219	*/
		220
		221	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		222
		223	for (;;)
		224	{
		225	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		226	char scratch[3072];
		227	struct fiemap *incmap = (struct fiemap *)scratch;
		228
		229	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		230	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		231	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		232	incmap->fm_flags = fiemap->fm_flags;
		233	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		234
		235	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		236	return;
		237
		238	if (!incmap->fm_mapped_extents)
		239	goto done;
		240
		241	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		242	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		243	errno = ENOMEM;
		244	if (!fiemap)
		245	return;
		246
		247	req->ptr1 = fiemap;
		248
		249	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		250	{
		251	struct fiemap_extent *e = incmap->fm_extents + count;
		252
		253	if (e->fe_logical + e->fe_length >= end_offset)
		254	goto done;
		255
		256	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		257
		258	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		259	goto done;
		260
		261	}
		262	}
		263
		264	done:
		265	req->result = 0;
		266
		267	#else
		268	errno = ENOSYS;
		269	#endif
		270	}
		271
		272	/*****************************************************************************/
325		273
326	enum {	274	enum {
327	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	275	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
328	};	276	};
329		277
330	#include "libeio/eio.c"
331
332	typedef eio_req *aio_req;	278	typedef eio_req *aio_req;
333	typedef eio_req *aio_req_ornot;	279	typedef eio_req *aio_req_ornot;
		280	typedef eio_wd aio_wd;
334		281
335	static SV *on_next_submit;	282	static SV *on_next_submit;
336	static int next_pri = EIO_PRI_DEFAULT;	283	static int next_pri = EIO_PRI_DEFAULT;
337	static int max_outstanding;	284	static int max_outstanding;
338		285
339	static s_epipe respipe;	286	static s_epipe respipe;
340		287
341	static void req_destroy (aio_req req);	288	static void req_destroy (aio_req req);
342	static void req_cancel (aio_req req);	289	static void req_cancel (aio_req req);
343		290
344	static void want_poll (void)	291	static void
		292	want_poll (void)
345	{	293	{
346	/* write a dummy byte to the pipe so fh becomes ready */	294	/* write a dummy byte to the pipe so fh becomes ready */
347	s_epipe_signal (&respipe);	295	s_epipe_signal (&respipe);
348	}	296	}
349		297
350	static void done_poll (void)	298	static void
		299	done_poll (void)
351	{	300	{
352	/* read any signals sent by the worker threads */	301	/* read any signals sent by the worker threads */
353	s_epipe_drain (&respipe);	302	s_epipe_drain (&respipe);
354	}	303	}
355		304
356	/* must be called at most once */	305	/* must be called at most once */
		306	static SV *
357	static SV *req_sv (aio_req req, HV *stash)	307	req_sv (aio_req req, HV *stash)
358	{	308	{
359	if (!req->self)	309	if (!req->self)
360	{	310	{
361	req->self = (SV *)newHV ();	311	req->self = (SV *)newHV ();
362	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	312	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
363	}	313	}
364		314
365	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	315	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
366	}	316	}
367		317
368	static aio_req SvAIO_REQ (SV *sv)	318	static SV *
		319	newSVaio_wd (aio_wd wd)
		320	{
		321	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		322	}
		323
		324	static aio_req
		325	SvAIO_REQ (SV *sv)
369	{	326	{
370	MAGIC *mg;	327	MAGIC *mg;
371		328
372	if (!SvROK (sv)	329	if (!SvROK (sv)
		330	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
373	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	331	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
374	&& SvSTASH (SvRV (sv)) != aio_req_stash	332	&& SvSTASH (SvRV (sv)) != aio_req_stash
375	&& !sv_derived_from (sv, "IO::AIO::REQ")))	333	&& !sv_derived_from (sv, "IO::AIO::REQ")))
376	croak ("object of class IO::AIO::REQ expected");	334	croak ("object of class IO::AIO::REQ expected");
377		335
378	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	336	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
379		337
380	return mg ? (aio_req)mg->mg_ptr : 0;	338	return mg ? (aio_req)mg->mg_ptr : 0;
381	}	339	}
382		340
		341	static aio_wd
		342	SvAIO_WD (SV *sv)
		343	{
		344	if (!SvROK (sv)
		345	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		346	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		347	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		348
		349	return (aio_wd)(long)SvIVX (SvRV (sv));
		350	}
		351
		352	static SV *
		353	newmortalFH (int fd, int flags)
		354	{
		355	if (fd < 0)
		356	return &PL_sv_undef;
		357
		358	GV *gv = (GV *)sv_newmortal ();
		359	char sym[64];
		360	int symlen;
		361
		362	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		363	gv_init (gv, aio_stash, sym, symlen, 0);
		364
		365	symlen = snprintf (
		366	sym,
		367	sizeof (sym),
		368	"%s&=%d",
		369	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		370	fd
		371	);
		372
		373	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		374	? (SV *)gv : &PL_sv_undef;
		375	}
		376
		377	static void
383	static void aio_grp_feed (aio_req grp)	378	aio_grp_feed (aio_req grp)
384	{	379	{
385	if (grp->sv2 && SvOK (grp->sv2))	380	if (grp->sv2 && SvOK (grp->sv2))
386	{	381	{
387	dSP;	382	dSP;
388		383
…		…
396	FREETMPS;	391	FREETMPS;
397	LEAVE;	392	LEAVE;
398	}	393	}
399	}	394	}
400		395
		396	static void
401	static void req_submit (eio_req *req)	397	req_submit (eio_req *req)
402	{	398	{
403	eio_submit (req);	399	eio_submit (req);
404		400
405	if (expect_false (on_next_submit))	401	if (expect_false (on_next_submit))
406	{	402	{
…		…
413	PUTBACK;	409	PUTBACK;
414	call_sv (cb, G_DISCARD | G_EVAL);	410	call_sv (cb, G_DISCARD | G_EVAL);
415	}	411	}
416	}	412	}
417		413
		414	static int
418	static int req_invoke (eio_req *req)	415	req_invoke (eio_req *req)
419	{	416	{
420	if (req->flags & FLAG_SV2_RO_OFF)	417	if (req->flags & FLAG_SV2_RO_OFF)
421	SvREADONLY_off (req->sv2);	418	SvREADONLY_off (req->sv2);
422		419
423	if (!EIO_CANCELLED (req) && req->callback)	420	if (!EIO_CANCELLED (req) && req->callback)
…		…
444	SvREADONLY_on (sv_result);	441	SvREADONLY_on (sv_result);
445	}	442	}
446		443
447	switch (req->type)	444	switch (req->type)
448	{	445	{
		446	case EIO_WD_OPEN:
		447	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		448	break;
		449
449	case EIO_READDIR:	450	case EIO_READDIR:
450	{	451	{
451	SV *rv = &PL_sv_undef;	452	SV *rv = &PL_sv_undef;
452		453
453	if (req->result >= 0)	454	if (req->result >= 0)
…		…
506	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	507	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
507	}	508	}
508	break;	509	break;
509		510
510	case EIO_OPEN:	511	case EIO_OPEN:
511	{	512	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
512	/* convert fd to fh */
513	SV *fh = &PL_sv_undef;
514
515	if (req->result >= 0)
516	{
517	GV *gv = (GV *)sv_newmortal ();
518	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
519	char sym [64];
520	int symlen;
521
522	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
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	(int)req->result
531	);
532
533	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
534	fh = (SV *)gv;
535	}
536
537	PUSHs (fh);
538	}
539	break;	513	break;
540		514
541	case EIO_STATVFS:	515	case EIO_STATVFS:
542	case EIO_FSTATVFS:	516	case EIO_FSTATVFS:
543	{	517	{
544	SV *rv = &PL_sv_undef;	518	SV *rv = &PL_sv_undef;
545		519
		520	#ifndef _WIN32
546	if (req->result >= 0)	521	if (req->result >= 0)
547	{	522	{
548	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	523	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
549	HV *hv = newHV ();	524	HV *hv = newHV ();
		525	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		526	* chooses to make it a struct.
		527	*/
		528	unsigned long fsid = 0;
		529	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
550		530
551	rv = sv_2mortal (newRV_noinc ((SV *)hv));	531	rv = sv_2mortal (newRV_noinc ((SV *)hv));
552		532
553	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	533	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
554	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	534	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
556	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	536	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
557	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	537	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
558	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	538	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
559	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	539	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
560	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	540	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
561	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	541	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
562	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	542	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
563	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	543	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
564	}	544	}
		545	#endif
565		546
566	PUSHs (rv);	547	PUSHs (rv);
567	}	548	}
568		549
569	break;	550	break;
…		…
585	case EIO_NOP:	566	case EIO_NOP:
586	case EIO_BUSY:	567	case EIO_BUSY:
587	break;	568	break;
588		569
589	case EIO_READLINK:	570	case EIO_READLINK:
		571	case EIO_REALPATH:
590	if (req->result > 0)	572	if (req->result > 0)
591	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	573	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
592	break;	574	break;
593		575
594	case EIO_STAT:	576	case EIO_STAT:
595	case EIO_LSTAT:	577	case EIO_LSTAT:
596	case EIO_FSTAT:	578	case EIO_FSTAT:
597	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	579	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		580
598	PL_laststatval = req->result;	581	if (!(PL_laststatval = req->result))
		582	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
599	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	583	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		584
600	PUSHs (sv_result);	585	PUSHs (sv_result);
		586	break;
		587
		588	case EIO_SEEK:
		589	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
601	break;	590	break;
602		591
603	case EIO_READ:	592	case EIO_READ:
604	{	593	{
605	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	594	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
608	SvSETMAGIC (req->sv2);	597	SvSETMAGIC (req->sv2);
609	PUSHs (sv_result);	598	PUSHs (sv_result);
610	}	599	}
611	break;	600	break;
612		601
		602	case EIO_CUSTOM:
		603	if (req->feed == fiemap)
		604	{
		605	#if HAVE_FIEMAP
		606	if (!req->result)
		607	{
		608	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		609
		610	if (fiemap->fm_extent_count)
		611	{
		612	AV *av = newAV ();
		613	int i;
		614
		615	while (fiemap->fm_mapped_extents)
		616	{
		617	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		618	AV *ext_av = newAV ();
		619
		620	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		621	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		622	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		623	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		624
		625	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		626	}
		627
		628	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		629	}
		630	else
		631	{
		632	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		633	PUSHs (sv_result);
		634	}
		635	}
		636	#endif
		637	}
		638	else
		639	PUSHs (sv_result);
		640	break;
		641
613	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	642	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
614	if (req->result > 0)	643	if (req->result > 0)
615	SvIV_set (sv_result, 0);	644	SvIV_set (sv_result, 0);
616	/* FALLTHROUGH */	645	/* FALLTHROUGH */
617		646
…		…
638	}	667	}
639		668
640	return !!SvTRUE (ERRSV);	669	return !!SvTRUE (ERRSV);
641	}	670	}
642		671
		672	static void
643	static void req_destroy (aio_req req)	673	req_destroy (aio_req req)
644	{	674	{
645	if (req->self)	675	if (req->self)
646	{	676	{
647	sv_unmagic (req->self, PERL_MAGIC_ext);	677	sv_unmagic (req->self, PERL_MAGIC_ext);
648	SvREFCNT_dec (req->self);	678	SvREFCNT_dec (req->self);
649	}	679	}
650		680
651	SvREFCNT_dec (req->sv1);	681	SvREFCNT_dec (req->sv1);
652	SvREFCNT_dec (req->sv2);	682	SvREFCNT_dec (req->sv2);
		683	SvREFCNT_dec (req->sv3);
		684	SvREFCNT_dec (req->sv4);
653	SvREFCNT_dec (req->callback);	685	SvREFCNT_dec (req->callback);
654		686
655	Safefree (req);	687	free (req);
656	}	688	}
657		689
		690	static void
658	static void req_cancel_subs (aio_req grp)	691	req_cancel_subs (aio_req grp)
659	{	692	{
660	aio_req sub;
661
662	if (grp->type != EIO_GROUP)	693	if (grp->type != EIO_GROUP)
663	return;	694	return;
664		695
665	SvREFCNT_dec (grp->sv2);	696	SvREFCNT_dec (grp->sv2);
666	grp->sv2 = 0;	697	grp->sv2 = 0;
667		698
668	eio_grp_cancel (grp);	699	eio_grp_cancel (grp);
669	}	700	}
670		701
671	static void	702	static void ecb_cold
672	create_respipe (void)	703	create_respipe (void)
673	{	704	{
674	if (s_epipe_renew (&respipe))	705	if (s_epipe_renew (&respipe))
675	croak ("IO::AIO: unable to initialize result pipe");	706	croak ("IO::AIO: unable to initialize result pipe");
676	}	707	}
677		708
678	static void poll_wait (void)	709	static void
		710	poll_wait (void)
679	{	711	{
680	while (eio_nreqs ())	712	while (eio_nreqs ())
681	{	713	{
682	int size;	714	int size;
683		715
684	X_LOCK (reslock);	716	X_LOCK (EIO_POOL->reslock);
685	size = res_queue.size;	717	size = EIO_POOL->res_queue.size;
686	X_UNLOCK (reslock);	718	X_UNLOCK (EIO_POOL->reslock);
687		719
688	if (size)	720	if (size)
689	return;	721	return;
690		722
691	etp_maybe_start_thread ();	723	etp_maybe_start_thread (EIO_POOL);
692		724
693	s_epipe_wait (&respipe);	725	s_epipe_wait (&respipe);
694	}	726	}
695	}	727	}
696		728
697	static int poll_cb (void)	729	static int
		730	poll_cb (void)
698	{	731	{
699	for (;;)	732	for (;;)
700	{	733	{
701	int res = eio_poll ();	734	int res = eio_poll ();
702		735
…		…
708		741
709	poll_wait ();	742	poll_wait ();
710	}	743	}
711	}	744	}
712		745
713	static void atfork_child (void)	746	static void ecb_cold
		747	reinit (void)
714	{	748	{
715	create_respipe ();	749	create_respipe ();
		750
		751	if (eio_init (want_poll, done_poll) < 0)
		752	croak ("IO::AIO: unable to initialise eio library");
716	}	753	}
717		754
718	/*****************************************************************************/	755	/*****************************************************************************/
719		756
720	#if !_POSIX_MAPPED_FILES	757	#if !_POSIX_MAPPED_FILES
721	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	758	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
722	# define munmap(addr,length) (errno = ENOSYS, -1)	759	# define munmap(addr,length) EIO_ENOSYS ()
723	#endif	760	#endif
724		761
725	#if !_POSIX_MEMORY_PROTECTION	762	#if !_POSIX_MEMORY_PROTECTION
726	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)	763	# define mprotect(addr,len,prot) EIO_ENOSYS ()
727	# define PROT_NONE 0
728	# define PROT_WRITE 0
729	# define MAP_PRIVATE 0
730	# define MAP_SHARED 0
731	# define MAP_FIXED 0
732	#endif	764	#endif
733		765
734	#define MMAP_MAGIC PERL_MAGIC_ext	766	#define MMAP_MAGIC PERL_MAGIC_ext
735		767
736	static int	768	static int ecb_cold
737	mmap_free (pTHX_ SV *sv, MAGIC *mg)	769	mmap_free (pTHX_ SV *sv, MAGIC *mg)
738	{	770	{
739	int old_errno = errno;	771	int old_errno = errno;
740	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	772	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
741	errno = old_errno;	773	errno = old_errno;
…		…
765	{	797	{
766	SvGETMAGIC (cb_sv);	798	SvGETMAGIC (cb_sv);
767	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	799	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
768	}	800	}
769		801
		802	static aio_req ecb_noinline
		803	dreq (SV *callback)
		804	{
		805	SV *cb_cv;
		806	aio_req req;
		807	int req_pri = next_pri;
		808	next_pri = EIO_PRI_DEFAULT;
		809
		810	cb_cv = get_cb (callback);
		811
		812	req = calloc (sizeof (*req), 1);
		813	if (!req)
		814	croak ("out of memory during eio_req allocation");
		815
		816	req->callback = SvREFCNT_inc (cb_cv);
		817	req->pri = req_pri;
		818
		819	return req;
		820	}
		821
770	#define dREQ \	822	#define dREQ \
771	SV *cb_cv; \	823	aio_req req = dreq (callback); \
772	aio_req req; \
773	int req_pri = next_pri; \
774	next_pri = EIO_PRI_DEFAULT; \
775	\
776	cb_cv = get_cb (callback); \
777	\
778	Newz (0, req, 1, eio_req); \
779	if (!req) \
780	croak ("out of memory during eio_req allocation"); \
781	\
782	req->callback = SvREFCNT_inc (cb_cv); \
783	req->pri = req_pri
784		824
785	#define REQ_SEND \	825	#define REQ_SEND \
786	PUTBACK; \	826	PUTBACK; \
787	req_submit (req); \	827	req_submit (req); \
788	SPAGAIN; \	828	SPAGAIN; \
789	\	829	\
790	if (GIMME_V != G_VOID) \	830	if (GIMME_V != G_VOID) \
791	XPUSHs (req_sv (req, aio_req_stash));	831	XPUSHs (req_sv (req, aio_req_stash));
792		832
		833	ecb_inline void
		834	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		835	{
		836	if (expect_false (SvROK (path)))
		837	{
		838	SV *rv = SvRV (path);
		839	SV *wdob;
		840
		841	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		842	{
		843	path = AvARRAY (rv)[1];
		844	wdob = AvARRAY (rv)[0];
		845
		846	if (SvOK (wdob))
		847	{
		848	*wd = SvAIO_WD (wdob);
		849	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		850	}
		851	else
		852	*wd = EIO_INVALID_WD;
		853	}
		854	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		855	{
		856	*wd = (aio_wd)(long)SvIVX (rv);
		857	*wdsv = SvREFCNT_inc_NN (rv);
		858	*ptr = ".";
		859	return; /* path set to "." */
		860	}
		861	else
		862	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		863	}
		864
		865	*pathsv = newSVsv (path);
		866	*ptr = SvPVbyte_nolen (*pathsv);
		867	}
		868
		869	static void ecb_noinline
		870	req_set_path1 (aio_req req, SV *path)
		871	{
		872	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		873	}
		874
		875	static void ecb_noinline
		876	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		877	{
		878	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		879
		880	switch (SvTYPE (rv))
		881	{
		882	case SVt_PVIO:
		883	case SVt_PVLV:
		884	case SVt_PVGV:
		885	req->type = type_fh;
		886	req->sv1 = newSVsv (fh_or_path);
		887	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		888	break;
		889
		890	default:
		891	req->type = type_path;
		892	req_set_path1 (req, fh_or_path);
		893	break;
		894	}
		895	}
		896
		897	XS(boot_IO__AIO) ecb_cold;
		898
793	MODULE = IO::AIO PACKAGE = IO::AIO	899	MODULE = IO::AIO PACKAGE = IO::AIO
794		900
795	PROTOTYPES: ENABLE	901	PROTOTYPES: ENABLE
796		902
797	BOOT:	903	BOOT:
…		…
801	IV iv;	907	IV iv;
802	} *civ, const_iv[] = {	908	} *civ, const_iv[] = {
803	# define const_niv(name, value) { # name, (IV) value },	909	# define const_niv(name, value) { # name, (IV) value },
804	# define const_iv(name) { # name, (IV) name },	910	# define const_iv(name) { # name, (IV) name },
805	# define const_eio(name) { # name, (IV) EIO_ ## name },	911	# define const_eio(name) { # name, (IV) EIO_ ## name },
		912
		913	/* you have to re-run ./gendef0 after adding/removing any constants here */
		914	/* the first block can be undef if missing */
		915	const_iv (ENOSYS)
806	const_iv (EXDEV)	916	const_iv (EXDEV)
807	const_iv (ENOSYS)	917	const_iv (EBADR)
		918
		919	/* for lseek */
		920	const_iv (SEEK_DATA)
		921	const_iv (SEEK_HOLE)
		922
		923	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		924	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		925	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		926	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		927	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		928	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		929
		930	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		931	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		932	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		933	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		934	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		935
		936	/* the second block will be 0 when missing */
808	const_iv (O_RDONLY)	937	const_iv (O_RDONLY)
809	const_iv (O_WRONLY)	938	const_iv (O_WRONLY)
810	const_iv (O_RDWR)	939	const_iv (O_RDWR)
811	const_iv (O_CREAT)	940	const_iv (O_CREAT)
812	const_iv (O_TRUNC)	941	const_iv (O_TRUNC)
…		…
825	const_iv (O_SEARCH)	954	const_iv (O_SEARCH)
826	const_iv (O_DIRECTORY)	955	const_iv (O_DIRECTORY)
827	const_iv (O_DSYNC)	956	const_iv (O_DSYNC)
828	const_iv (O_RSYNC)	957	const_iv (O_RSYNC)
829	const_iv (O_SYNC)	958	const_iv (O_SYNC)
		959	const_iv (O_PATH)
		960	const_iv (O_TMPFILE)
830	const_iv (O_TTY_INIT)	961	const_iv (O_TTY_INIT)
831		962
832	const_iv (S_IFIFO)	963	const_iv (S_IFIFO)
833	const_iv (S_IFCHR)	964	const_iv (S_IFCHR)
834	const_iv (S_IFBLK)	965	const_iv (S_IFBLK)
…		…
836	const_iv (S_IFREG)	967	const_iv (S_IFREG)
837	const_iv (S_IFDIR)	968	const_iv (S_IFDIR)
838	const_iv (S_IFWHT)	969	const_iv (S_IFWHT)
839	const_iv (S_IFSOCK)	970	const_iv (S_IFSOCK)
840	const_iv (S_IFMT)	971	const_iv (S_IFMT)
841
842	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
843	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
844	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
845	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
846	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
847	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
848
849	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
850	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
851	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
852	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
853	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
854		972
855	const_iv (ST_RDONLY)	973	const_iv (ST_RDONLY)
856	const_iv (ST_NOSUID)	974	const_iv (ST_NOSUID)
857	const_iv (ST_NODEV)	975	const_iv (ST_NODEV)
858	const_iv (ST_NOEXEC)	976	const_iv (ST_NOEXEC)
…		…
868	const_iv (PROT_NONE)	986	const_iv (PROT_NONE)
869	const_iv (PROT_EXEC)	987	const_iv (PROT_EXEC)
870	const_iv (PROT_READ)	988	const_iv (PROT_READ)
871	const_iv (PROT_WRITE)	989	const_iv (PROT_WRITE)
872		990
873	/*const_iv (MAP_FIXED)*/
874	const_iv (MAP_PRIVATE)	991	const_iv (MAP_PRIVATE)
875	const_iv (MAP_SHARED)	992	const_iv (MAP_SHARED)
		993	const_iv (MAP_FIXED)
876	const_iv (MAP_ANONYMOUS)	994	const_iv (MAP_ANONYMOUS)
877		995
878	/* linuxish */	996	/* linuxish */
879	const_iv (MAP_HUGETLB)
880	const_iv (MAP_LOCKED)	997	const_iv (MAP_LOCKED)
881	const_iv (MAP_NORESERVE)	998	const_iv (MAP_NORESERVE)
882	const_iv (MAP_POPULATE)	999	const_iv (MAP_POPULATE)
883	const_iv (MAP_NONBLOCK)	1000	const_iv (MAP_NONBLOCK)
		1001	const_iv (MAP_GROWSDOWN)
		1002	const_iv (MAP_32BIT)
		1003	const_iv (MAP_HUGETLB)
		1004	const_iv (MAP_STACK)
		1005
		1006	const_iv (F_DUPFD_CLOEXEC)
		1007
		1008	const_iv (F_OFD_GETLK)
		1009	const_iv (F_OFD_SETLK)
		1010	const_iv (F_OFD_GETLKW)
		1011
		1012	const_iv (FIFREEZE)
		1013	const_iv (FITHAW)
		1014	const_iv (FITRIM)
		1015	const_iv (FICLONE)
		1016	const_iv (FICLONERANGE)
		1017	const_iv (FIDEDUPERANGE)
		1018
		1019	const_iv (FS_IOC_GETFLAGS)
		1020	const_iv (FS_IOC_SETFLAGS)
		1021	const_iv (FS_IOC_GETVERSION)
		1022	const_iv (FS_IOC_SETVERSION)
		1023	const_iv (FS_IOC_FIEMAP)
		1024	const_iv (FS_IOC_FSGETXATTR)
		1025	const_iv (FS_IOC_FSSETXATTR)
		1026	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1027	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1028	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1029
		1030	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1031
		1032	const_iv (FS_SECRM_FL)
		1033	const_iv (FS_UNRM_FL)
		1034	const_iv (FS_COMPR_FL)
		1035	const_iv (FS_SYNC_FL)
		1036	const_iv (FS_IMMUTABLE_FL)
		1037	const_iv (FS_APPEND_FL)
		1038	const_iv (FS_NODUMP_FL)
		1039	const_iv (FS_NOATIME_FL)
		1040	const_iv (FS_DIRTY_FL)
		1041	const_iv (FS_COMPRBLK_FL)
		1042	const_iv (FS_NOCOMP_FL)
		1043	const_iv (FS_ENCRYPT_FL)
		1044	const_iv (FS_BTREE_FL)
		1045	const_iv (FS_INDEX_FL)
		1046	const_iv (FS_JOURNAL_DATA_FL)
		1047	const_iv (FS_NOTAIL_FL)
		1048	const_iv (FS_DIRSYNC_FL)
		1049	const_iv (FS_TOPDIR_FL)
		1050	const_iv (FS_FL_USER_MODIFIABLE)
		1051
		1052	const_iv (FS_XFLAG_REALTIME)
		1053	const_iv (FS_XFLAG_PREALLOC)
		1054	const_iv (FS_XFLAG_IMMUTABLE)
		1055	const_iv (FS_XFLAG_APPEND)
		1056	const_iv (FS_XFLAG_SYNC)
		1057	const_iv (FS_XFLAG_NOATIME)
		1058	const_iv (FS_XFLAG_NODUMP)
		1059	const_iv (FS_XFLAG_RTINHERIT)
		1060	const_iv (FS_XFLAG_PROJINHERIT)
		1061	const_iv (FS_XFLAG_NOSYMLINKS)
		1062	const_iv (FS_XFLAG_EXTSIZE)
		1063	const_iv (FS_XFLAG_EXTSZINHERIT)
		1064	const_iv (FS_XFLAG_NODEFRAG)
		1065	const_iv (FS_XFLAG_FILESTREAM)
		1066	const_iv (FS_XFLAG_DAX)
		1067	const_iv (FS_XFLAG_HASATTR)
		1068
		1069	const_iv (FIEMAP_FLAG_SYNC)
		1070	const_iv (FIEMAP_FLAG_XATTR)
		1071	const_iv (FIEMAP_FLAGS_COMPAT)
		1072	const_iv (FIEMAP_EXTENT_LAST)
		1073	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1074	const_iv (FIEMAP_EXTENT_DELALLOC)
		1075	const_iv (FIEMAP_EXTENT_ENCODED)
		1076	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1077	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1078	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1079	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1080	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1081	const_iv (FIEMAP_EXTENT_MERGED)
		1082	const_iv (FIEMAP_EXTENT_SHARED)
		1083
		1084	const_iv (SPLICE_F_MOVE)
		1085	const_iv (SPLICE_F_NONBLOCK)
		1086	const_iv (SPLICE_F_MORE)
		1087	const_iv (SPLICE_F_GIFT)
		1088
		1089	/* these are libeio constants, and are independent of gendef0 */
		1090	const_eio (SEEK_SET)
		1091	const_eio (SEEK_CUR)
		1092	const_eio (SEEK_END)
884		1093
885	const_eio (MCL_FUTURE)	1094	const_eio (MCL_FUTURE)
886	const_eio (MCL_CURRENT)	1095	const_eio (MCL_CURRENT)
887		1096
888	const_eio (MS_ASYNC)	1097	const_eio (MS_ASYNC)
…		…
892	const_eio (MT_MODIFY)	1101	const_eio (MT_MODIFY)
893		1102
894	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1103	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
895	const_eio (SYNC_FILE_RANGE_WRITE)	1104	const_eio (SYNC_FILE_RANGE_WRITE)
896	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1105	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1106
		1107	const_eio (FALLOC_FL_KEEP_SIZE)
		1108	const_eio (FALLOC_FL_PUNCH_HOLE)
		1109	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1110	const_eio (FALLOC_FL_ZERO_RANGE)
		1111	const_eio (FALLOC_FL_INSERT_RANGE)
		1112	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1113
		1114	const_eio (RENAME_NOREPLACE)
		1115	const_eio (RENAME_EXCHANGE)
		1116	const_eio (RENAME_WHITEOUT)
897		1117
898	const_eio (READDIR_DENTS)	1118	const_eio (READDIR_DENTS)
899	const_eio (READDIR_DIRS_FIRST)	1119	const_eio (READDIR_DIRS_FIRST)
900	const_eio (READDIR_STAT_ORDER)	1120	const_eio (READDIR_STAT_ORDER)
901	const_eio (READDIR_FOUND_UNKNOWN)	1121	const_eio (READDIR_FOUND_UNKNOWN)
…		…
912	};	1132	};
913		1133
914	aio_stash = gv_stashpv ("IO::AIO" , 1);	1134	aio_stash = gv_stashpv ("IO::AIO" , 1);
915	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1135	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
916	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1136	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1137	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
917		1138
918	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1139	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
919	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1140	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
920		1141
921	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1142	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
922		1143
923	create_respipe ();	1144	reinit ();
924
925	if (eio_init (want_poll, done_poll) < 0)
926	croak ("IO::AIO: unable to initialise eio library");
927
928	/* atfork child called in fifo order, so before eio's handler */
929	X_THREAD_ATFORK (0, 0, atfork_child);
930	}	1145	}
		1146
		1147	void
		1148	reinit ()
		1149	PROTOTYPE:
931		1150
932	void	1151	void
933	max_poll_reqs (unsigned int nreqs)	1152	max_poll_reqs (unsigned int nreqs)
934	PROTOTYPE: $	1153	PROTOTYPE: $
935	CODE:	1154	CODE:
…		…
970	PROTOTYPE: $	1189	PROTOTYPE: $
971	CODE:	1190	CODE:
972	max_outstanding = maxreqs;	1191	max_outstanding = maxreqs;
973		1192
974	void	1193	void
975	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1194	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
976	PPCODE:	1195	PPCODE:
977	{	1196	{
978	dREQ;	1197	dREQ;
979		1198
		1199	req->type = EIO_WD_OPEN;
		1200	req_set_path1 (req, pathname);
		1201
		1202	REQ_SEND;
		1203	}
		1204
		1205	void
		1206	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1207	PPCODE:
		1208	{
		1209	dREQ;
		1210
980	req->type = EIO_OPEN;	1211	req->type = EIO_OPEN;
981	req->sv1 = newSVsv (pathname);	1212	req_set_path1 (req, pathname);
982	req->ptr1 = SvPVbyte_nolen (req->sv1);
983	req->int1 = flags;	1213	req->int1 = flags;
984	req->int2 = mode;	1214	req->int2 = mode;
985		1215
986	REQ_SEND;	1216	REQ_SEND;
987	}	1217	}
988		1218
989	void	1219	void
990	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1220	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
991	ALIAS:	1221	ALIAS:
992	aio_fsync = EIO_FSYNC	1222	aio_fsync = EIO_FSYNC
993	aio_fdatasync = EIO_FDATASYNC	1223	aio_fdatasync = EIO_FDATASYNC
		1224	aio_syncfs = EIO_SYNCFS
994	PPCODE:	1225	PPCODE:
995	{	1226	{
996	int fd = s_fileno_croak (fh, 0);	1227	int fd = s_fileno_croak (fh, 0);
997	dREQ;	1228	dREQ;
998		1229
999	req->type = ix;	1230	req->type = ix;
1000	req->sv1 = newSVsv (fh);	1231	req->sv1 = newSVsv (fh);
1001	req->int1 = fd;	1232	req->int1 = fd;
1002		1233
1003	REQ_SEND (req);	1234	REQ_SEND;
1004	}	1235	}
1005		1236
1006	void	1237	void
1007	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1238	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1008	PPCODE:	1239	PPCODE:
1009	{	1240	{
1010	int fd = s_fileno_croak (fh, 0);	1241	int fd = s_fileno_croak (fh, 0);
1011	dREQ;	1242	dREQ;
1012		1243
1013	req->type = EIO_SYNC_FILE_RANGE;	1244	req->type = EIO_SYNC_FILE_RANGE;
1014	req->sv1 = newSVsv (fh);	1245	req->sv1 = newSVsv (fh);
1015	req->int1 = fd;	1246	req->int1 = fd;
1016	req->offs = offset;	1247	req->offs = offset;
1017	req->size = nbytes;	1248	req->size = nbytes;
1018	req->int2 = flags;	1249	req->int2 = flags;
1019		1250
1020	REQ_SEND (req);	1251	REQ_SEND;
1021	}	1252	}
1022		1253
1023	void	1254	void
1024	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1255	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1025	PPCODE:	1256	PPCODE:
1026	{	1257	{
1027	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
1028	int fd = s_fileno_croak (fh, 0);	1258	int fd = s_fileno_croak (fh, 0);
1029	dREQ;	1259	dREQ;
1030		1260
1031	if (close_pipe < 0)	1261	req->type = EIO_FALLOCATE;
		1262	req->sv1 = newSVsv (fh);
		1263	req->int1 = fd;
		1264	req->int2 = mode;
		1265	req->offs = offset;
		1266	req->size = len;
		1267
		1268	REQ_SEND;
		1269	}
		1270
		1271	void
		1272	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1273	PPCODE:
		1274	{
		1275	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1276	int fd = s_fileno_croak (fh, 0);
		1277	dREQ;
		1278
		1279	if (expect_false (close_fd < 0))
1032	{	1280	{
1033	int pipefd [2];	1281	int pipefd [2];
1034		1282
		1283	if (
		1284	#ifdef _WIN32
		1285	_pipe (pipefd, 1, _O_BINARY) < 0
		1286	#else
1035	if (pipe (pipefd) < 0	1287	pipe (pipefd) < 0
1036	|| close (pipefd [1]) < 0
1037	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1288	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1289	#endif
		1290	|| close (pipefd [1]) < 0
		1291	)
1038	abort (); /*D*/	1292	abort (); /*D*/
1039		1293
1040	close_pipe = pipefd [0];	1294	close_fd = pipefd [0];
1041	}	1295	}
1042		1296
1043	req->type = EIO_DUP2;	1297	req->type = EIO_DUP2;
1044	req->int1 = close_pipe;	1298	req->int1 = close_fd;
1045	req->sv2 = newSVsv (fh);	1299	req->sv2 = newSVsv (fh);
1046	req->int2 = fd;	1300	req->int2 = fd;
1047		1301
1048	REQ_SEND (req);	1302	REQ_SEND;
1049	}	1303	}
1050		1304
1051	void	1305	void
		1306	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1307	PPCODE:
		1308	{
		1309	int fd = s_fileno_croak (fh, 0);
		1310	dREQ;
		1311
		1312	req->type = EIO_SEEK;
		1313	req->sv1 = newSVsv (fh);
		1314	req->int1 = fd;
		1315	req->offs = SvVAL64 (offset);
		1316	req->int2 = whence;
		1317
		1318	REQ_SEND;
		1319	}
		1320
		1321	void
1052	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1322	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1053	ALIAS:	1323	ALIAS:
1054	aio_read = EIO_READ	1324	aio_read = EIO_READ
1055	aio_write = EIO_WRITE	1325	aio_write = EIO_WRITE
1056	PPCODE:	1326	PPCODE:
1057	{	1327	{
…		…
1073	len = svlen - dataoffset;	1343	len = svlen - dataoffset;
1074	}	1344	}
1075	else	1345	else
1076	{	1346	{
1077	/* read: check type and grow scalar as necessary */	1347	/* read: check type and grow scalar as necessary */
1078	SvUPGRADE (data, SVt_PV);	1348	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1079	svptr = SvGROW (data, len + dataoffset + 1);	1349	svptr = sv_grow (data, len + dataoffset + 1);
		1350	else if (SvCUR (data) < len + dataoffset)
		1351	croak ("length + dataoffset outside of scalar, and cannot grow");
1080	}	1352	}
1081		1353
1082	{	1354	{
1083	dREQ;	1355	dREQ;
1084		1356
…		…
1100	REQ_SEND;	1372	REQ_SEND;
1101	}	1373	}
1102	}	1374	}
1103		1375
1104	void	1376	void
1105	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1377	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1378	ALIAS:
		1379	aio_ioctl = EIO_IOCTL
		1380	aio_fcntl = EIO_FCNTL
1106	PPCODE:	1381	PPCODE:
1107	{	1382	{
1108	SV *data;	1383	int fd = s_fileno_croak (fh, 0);
		1384	char *svptr;
		1385
		1386	if (SvPOK (arg) || !SvNIOK (arg))
		1387	{
		1388	STRLEN svlen;
		1389	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1390	#ifdef IOCPARM_LEN
		1391	STRLEN need = IOCPARM_LEN (request);
		1392	#else
		1393	STRLEN need = 256;
		1394	#endif
		1395
		1396	if (svlen < need)
		1397	svptr = SvGROW (arg, need);
		1398	}
		1399	else
		1400	svptr = (char *)SvIV (arg);
		1401
		1402	{
		1403	dREQ;
		1404
		1405	req->type = ix;
		1406	req->sv1 = newSVsv (fh);
		1407	req->int1 = fd;
		1408	req->int2 = (long)request;
		1409	req->sv2 = SvREFCNT_inc (arg);
		1410	req->ptr2 = svptr;
		1411
		1412	REQ_SEND;
		1413	}
		1414	}
		1415
		1416	void
		1417	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1418	ALIAS:
		1419	aio_readlink = EIO_READLINK
		1420	aio_realpath = EIO_REALPATH
		1421	PPCODE:
		1422	{
1109	dREQ;	1423	dREQ;
1110		1424
1111	req->type = EIO_READLINK;	1425	req->type = ix;
1112	req->sv1 = newSVsv (path);	1426	req_set_path1 (req, pathname);
1113	req->ptr1 = SvPVbyte_nolen (req->sv1);
1114		1427
1115	REQ_SEND;	1428	REQ_SEND;
1116	}	1429	}
1117		1430
1118	void	1431	void
1119	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1432	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1120	PPCODE:	1433	PPCODE:
1121	{	1434	{
1122	int ifd = s_fileno_croak (in_fh , 0);	1435	int ifd = s_fileno_croak (in_fh , 0);
1123	int ofd = s_fileno_croak (out_fh, 1);	1436	int ofd = s_fileno_croak (out_fh, 1);
1124	dREQ;	1437	dREQ;
1125		1438
1126	req->type = EIO_SENDFILE;	1439	req->type = EIO_SENDFILE;
1127	req->sv1 = newSVsv (out_fh);	1440	req->sv1 = newSVsv (out_fh);
1128	req->int1 = ofd;	1441	req->int1 = ofd;
…		…
1133		1446
1134	REQ_SEND;	1447	REQ_SEND;
1135	}	1448	}
1136		1449
1137	void	1450	void
1138	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1451	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1139	PPCODE:	1452	PPCODE:
1140	{	1453	{
1141	int fd = s_fileno_croak (fh, 0);	1454	int fd = s_fileno_croak (fh, 0);
1142	dREQ;	1455	dREQ;
1143		1456
1144	req->type = EIO_READAHEAD;	1457	req->type = EIO_READAHEAD;
1145	req->sv1 = newSVsv (fh);	1458	req->sv1 = newSVsv (fh);
1146	req->int1 = fd;	1459	req->int1 = fd;
…		…
1149		1462
1150	REQ_SEND;	1463	REQ_SEND;
1151	}	1464	}
1152		1465
1153	void	1466	void
1154	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1467	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1155	ALIAS:	1468	ALIAS:
1156	aio_stat = EIO_STAT	1469	aio_stat = EIO_STAT
1157	aio_lstat = EIO_LSTAT	1470	aio_lstat = EIO_LSTAT
1158	aio_statvfs = EIO_STATVFS	1471	aio_statvfs = EIO_STATVFS
1159	PPCODE:	1472	PPCODE:
1160	{	1473	{
1161	dREQ;	1474	dREQ;
1162		1475
1163	req->sv1 = newSVsv (fh_or_path);	1476	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1164
1165	if (SvPOK (req->sv1))
1166	{
1167	req->type = ix;
1168	req->ptr1 = SvPVbyte_nolen (req->sv1);
1169	}
1170	else
1171	{
1172	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1173	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1174	}
1175		1477
1176	REQ_SEND;	1478	REQ_SEND;
1177	}	1479	}
1178		1480
1179	UV	1481	UV
1180	major (UV dev)	1482	major (UV dev)
1181	ALIAS:	1483	ALIAS:
1182	minor = 1	1484	minor = 1
1183	CODE:	1485	CODE:
1184	RETVAL = ix ? major (dev) : minor (dev);	1486	RETVAL = ix ? minor (dev) : major (dev);
1185	OUTPUT:	1487	OUTPUT:
1186	RETVAL	1488	RETVAL
1187		1489
1188	UV	1490	UV
1189	makedev (UV maj, UV min)	1491	makedev (UV maj, UV min)
…		…
1191	RETVAL = makedev (maj, min);	1493	RETVAL = makedev (maj, min);
1192	OUTPUT:	1494	OUTPUT:
1193	RETVAL	1495	RETVAL
1194		1496
1195	void	1497	void
1196	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1498	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1197	PPCODE:	1499	PPCODE:
1198	{	1500	{
1199	dREQ;	1501	dREQ;
1200		1502
1201	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1503	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1202	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1504	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1203	req->sv1 = newSVsv (fh_or_path);	1505	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1204
1205	if (SvPOK (req->sv1))
1206	{
1207	req->type = EIO_UTIME;
1208	req->ptr1 = SvPVbyte_nolen (req->sv1);
1209	}
1210	else
1211	{
1212	req->type = EIO_FUTIME;
1213	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1214	}
1215		1506
1216	REQ_SEND;	1507	REQ_SEND;
1217	}	1508	}
1218		1509
1219	void	1510	void
1220	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1511	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1221	PPCODE:	1512	PPCODE:
1222	{	1513	{
1223	dREQ;	1514	dREQ;
1224		1515
1225	req->sv1 = newSVsv (fh_or_path);
1226	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1516	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1227		1517	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1228	if (SvPOK (req->sv1))
1229	{
1230	req->type = EIO_TRUNCATE;
1231	req->ptr1 = SvPVbyte_nolen (req->sv1);
1232	}
1233	else
1234	{
1235	req->type = EIO_FTRUNCATE;
1236	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1237	}
1238		1518
1239	REQ_SEND;	1519	REQ_SEND;
1240	}	1520	}
1241		1521
1242	void	1522	void
1243	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1523	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1244	ALIAS:
1245	aio_chmod = EIO_CHMOD
1246	aio_mkdir = EIO_MKDIR
1247	PPCODE:	1524	PPCODE:
1248	{	1525	{
1249	dREQ;	1526	dREQ;
1250		1527
1251	req->int2 = mode;	1528	req->int2 = mode;
1252	req->sv1 = newSVsv (fh_or_path);	1529	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1253
1254	if (SvPOK (req->sv1))
1255	{
1256	req->type = ix;
1257	req->ptr1 = SvPVbyte_nolen (req->sv1);
1258	}
1259	else
1260	{
1261	req->type = EIO_FCHMOD;
1262	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1263	}
1264		1530
1265	REQ_SEND;	1531	REQ_SEND;
1266	}	1532	}
1267		1533
1268	void	1534	void
1269	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1535	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1270	PPCODE:	1536	PPCODE:
1271	{	1537	{
1272	dREQ;	1538	dREQ;
1273		1539
1274	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1540	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1275	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1541	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1276	req->sv1 = newSVsv (fh_or_path);	1542	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1277
1278	if (SvPOK (req->sv1))
1279	{
1280	req->type = EIO_CHOWN;
1281	req->ptr1 = SvPVbyte_nolen (req->sv1);
1282	}
1283	else
1284	{
1285	req->type = EIO_FCHOWN;
1286	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1287	}
1288		1543
1289	REQ_SEND;	1544	REQ_SEND;
1290	}	1545	}
1291		1546
1292	void	1547	void
1293	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1548	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1294	PPCODE:	1549	PPCODE:
1295	{	1550	{
1296	dREQ;	1551	dREQ;
1297		1552
1298	req->type = EIO_READDIR;	1553	req->type = EIO_READDIR;
1299	req->sv1 = newSVsv (pathname);
1300	req->ptr1 = SvPVbyte_nolen (req->sv1);
1301	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1554	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1302		1555
1303	if (flags & EIO_READDIR_DENTS)	1556	if (flags & EIO_READDIR_DENTS)
1304	req->int1 |= EIO_READDIR_CUSTOM2;	1557	req->int1 |= EIO_READDIR_CUSTOM2;
1305		1558
		1559	req_set_path1 (req, pathname);
		1560
1306	REQ_SEND;	1561	REQ_SEND;
1307	}	1562	}
1308		1563
1309	void	1564	void
		1565	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1566	PPCODE:
		1567	{
		1568	dREQ;
		1569
		1570	req->type = EIO_MKDIR;
		1571	req->int2 = mode;
		1572	req_set_path1 (req, pathname);
		1573
		1574	REQ_SEND;
		1575	}
		1576
		1577	void
1310	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1578	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1311	ALIAS:	1579	ALIAS:
1312	aio_unlink = EIO_UNLINK	1580	aio_unlink = EIO_UNLINK
1313	aio_rmdir = EIO_RMDIR	1581	aio_rmdir = EIO_RMDIR
1314	aio_readdir = EIO_READDIR	1582	aio_readdir = EIO_READDIR
1315	PPCODE:	1583	PPCODE:
1316	{	1584	{
1317	dREQ;	1585	dREQ;
1318		1586
1319	req->type = ix;	1587	req->type = ix;
1320	req->sv1 = newSVsv (pathname);	1588	req_set_path1 (req, pathname);
1321	req->ptr1 = SvPVbyte_nolen (req->sv1);
1322		1589
1323	REQ_SEND;	1590	REQ_SEND;
1324	}	1591	}
1325		1592
1326	void	1593	void
1327	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1594	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1328	ALIAS:	1595	ALIAS:
1329	aio_link = EIO_LINK	1596	aio_link = EIO_LINK
1330	aio_symlink = EIO_SYMLINK	1597	aio_symlink = EIO_SYMLINK
1331	aio_rename = EIO_RENAME	1598	aio_rename = EIO_RENAME
1332	PPCODE:	1599	PPCODE:
1333	{	1600	{
		1601	eio_wd wd2 = 0;
1334	dREQ;	1602	dREQ;
1335		1603
1336	req->type = ix;	1604	req->type = ix;
1337	req->sv1 = newSVsv (oldpath);	1605	req_set_path1 (req, oldpath);
1338	req->ptr1 = SvPVbyte_nolen (req->sv1);	1606	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1339	req->sv2 = newSVsv (newpath);	1607	req->int3 = (long)wd2;
1340	req->ptr2 = SvPVbyte_nolen (req->sv2);
1341		1608
1342	REQ_SEND;	1609	REQ_SEND;
1343	}	1610	}
1344		1611
1345	void	1612	void
		1613	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1614	PPCODE:
		1615	{
		1616	eio_wd wd2 = 0;
		1617	dREQ;
		1618
		1619	req->type = EIO_RENAME;
		1620	req_set_path1 (req, oldpath);
		1621	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1622	req->int2 = flags;
		1623	req->int3 = (long)wd2;
		1624
		1625	REQ_SEND;
		1626	}
		1627
		1628	void
1346	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1629	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1347	PPCODE:	1630	PPCODE:
1348	{	1631	{
1349	dREQ;	1632	dREQ;
1350		1633
1351	req->type = EIO_MKNOD;	1634	req->type = EIO_MKNOD;
1352	req->sv1 = newSVsv (pathname);
1353	req->ptr1 = SvPVbyte_nolen (req->sv1);
1354	req->int2 = (mode_t)mode;	1635	req->int2 = (mode_t)mode;
1355	req->offs = dev;	1636	req->offs = dev;
		1637	req_set_path1 (req, pathname);
1356		1638
1357	REQ_SEND;	1639	REQ_SEND;
1358	}	1640	}
1359		1641
1360	void	1642	void
1361	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1643	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1362	ALIAS:	1644	ALIAS:
1363	aio_mtouch = EIO_MTOUCH	1645	aio_mtouch = EIO_MTOUCH
1364	aio_msync = EIO_MSYNC	1646	aio_msync = EIO_MSYNC
1365	PPCODE:	1647	PPCODE:
1366	{	1648	{
1367	STRLEN svlen;	1649	STRLEN svlen;
1368	char *svptr = SvPVbyte (data, svlen);	1650	char *svptr = SvPVbyte (data, svlen);
1369	UV len = SvUV (length);	1651	UV len = SvUV (length);
		1652
		1653	if (flags < 0)
		1654	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1370		1655
1371	if (offset < 0)	1656	if (offset < 0)
1372	offset += svlen;	1657	offset += svlen;
1373		1658
1374	if (offset < 0 || offset > svlen)	1659	if (offset < 0 || offset > svlen)
…		…
1389	REQ_SEND;	1674	REQ_SEND;
1390	}	1675	}
1391	}	1676	}
1392		1677
1393	void	1678	void
1394	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1679	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1395	PPCODE:	1680	PPCODE:
1396	{	1681	{
1397	STRLEN svlen;	1682	STRLEN svlen;
1398	char *svptr = SvPVbyte (data, svlen);	1683	char *svptr = SvPVbyte (data, svlen);
1399	UV len = SvUV (length);	1684	UV len = SvUV (length);
…		…
1418	REQ_SEND;	1703	REQ_SEND;
1419	}	1704	}
1420	}	1705	}
1421		1706
1422	void	1707	void
1423	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1708	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1424	PPCODE:	1709	PPCODE:
1425	{	1710	{
1426	dREQ;	1711	dREQ;
1427		1712
1428	req->type = EIO_MLOCKALL;	1713	req->type = EIO_MLOCKALL;
…		…
1430		1715
1431	REQ_SEND;	1716	REQ_SEND;
1432	}	1717	}
1433		1718
1434	void	1719	void
		1720	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1721	PPCODE:
		1722	{
		1723	int fd = s_fileno_croak (fh, 0);
		1724	dREQ;
		1725
		1726	req->type = EIO_CUSTOM;
		1727	req->sv1 = newSVsv (fh);
		1728	req->int1 = fd;
		1729
		1730	req->feed = fiemap;
		1731	#if HAVE_FIEMAP
		1732	/* keep our fingers crossed that the next two types are 64 bit */
		1733	req->offs = start;
		1734	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1735	req->int2 = flags;
		1736	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1737	#endif
		1738
		1739	REQ_SEND;
		1740	}
		1741
		1742	void
1435	aio_busy (double delay, SV *callback=&PL_sv_undef)	1743	aio_busy (double delay, SV *callback = &PL_sv_undef)
1436	PPCODE:	1744	PPCODE:
1437	{	1745	{
1438	dREQ;	1746	dREQ;
1439		1747
1440	req->type = EIO_BUSY;	1748	req->type = EIO_BUSY;
…		…
1442		1750
1443	REQ_SEND;	1751	REQ_SEND;
1444	}	1752	}
1445		1753
1446	void	1754	void
1447	aio_group (SV *callback=&PL_sv_undef)	1755	aio_group (SV *callback = &PL_sv_undef)
1448	PPCODE:	1756	PPCODE:
1449	{	1757	{
1450	dREQ;	1758	dREQ;
1451		1759
1452	req->type = EIO_GROUP;	1760	req->type = EIO_GROUP;
1453		1761
		1762	PUTBACK;
1454	req_submit (req);	1763	req_submit (req);
		1764	SPAGAIN;
		1765
1455	XPUSHs (req_sv (req, aio_grp_stash));	1766	XPUSHs (req_sv (req, aio_grp_stash));
1456	}	1767	}
1457		1768
1458	void	1769	void
1459	aio_nop (SV *callback=&PL_sv_undef)	1770	aio_nop (SV *callback = &PL_sv_undef)
1460	ALIAS:	1771	ALIAS:
1461	aio_nop = EIO_NOP	1772	aio_nop = EIO_NOP
1462	aio_sync = EIO_SYNC	1773	aio_sync = EIO_SYNC
1463	PPCODE:	1774	PPCODE:
1464	{	1775	{
…		…
1468		1779
1469	REQ_SEND;	1780	REQ_SEND;
1470	}	1781	}
1471		1782
1472	int	1783	int
1473	aioreq_pri (int pri = 0)	1784	aioreq_pri (int pri = NO_INIT)
1474	CODE:	1785	CODE:
1475	RETVAL = next_pri;	1786	RETVAL = next_pri;
1476	if (items > 0)	1787	if (items > 0)
1477	{	1788	{
1478	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1789	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1560	CODE:	1871	CODE:
1561	RETVAL = posix_fadvise (fh, offset, length, advice);	1872	RETVAL = posix_fadvise (fh, offset, length, advice);
1562	OUTPUT:	1873	OUTPUT:
1563	RETVAL	1874	RETVAL
1564		1875
1565	ssize_t	1876	IV
1566	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1877	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1567	CODE:	1878	CODE:
1568	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1879	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1569	OUTPUT:	1880	OUTPUT:
1570	RETVAL	1881	RETVAL
1571		1882
1572	void	1883	void
1573	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1884	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1574	PPCODE:	1885	PPCODE:
1575	sv_unmagic (scalar, MMAP_MAGIC);	1886	sv_unmagic (scalar, MMAP_MAGIC);
1576	{	1887	{
1577	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1888	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1578	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1889	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
…		…
1605	munmap (SV *scalar)	1916	munmap (SV *scalar)
1606	CODE:	1917	CODE:
1607	sv_unmagic (scalar, MMAP_MAGIC);	1918	sv_unmagic (scalar, MMAP_MAGIC);
1608		1919
1609	int	1920	int
1610	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	1921	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1611	ALIAS:	1922	ALIAS:
1612	mprotect = 1	1923	mprotect = 1
1613	CODE:	1924	CODE:
1614	{	1925	{
1615	STRLEN svlen;	1926	STRLEN svlen;
1616	void *addr = SvPVbyte (scalar, svlen);	1927	void *addr = SvPVbyte (scalar, svlen);
1617	size_t len = SvUV (length);	1928	STRLEN len = SvUV (length);
1618		1929
1619	if (offset < 0)	1930	if (offset < 0)
1620	offset += svlen;	1931	offset += svlen;
1621		1932
1622	if (offset < 0 || offset > svlen)	1933	if (offset < 0 || offset > svlen)
…		…
1636	}	1947	}
1637	OUTPUT:	1948	OUTPUT:
1638	RETVAL	1949	RETVAL
1639		1950
1640	int	1951	int
1641	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	1952	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1642	CODE:	1953	CODE:
1643	{	1954	{
1644	STRLEN svlen;	1955	STRLEN svlen;
1645	void *addr = SvPVbyte (scalar, svlen);	1956	void *addr = SvPVbyte (scalar, svlen);
1646	size_t len = SvUV (length);	1957	size_t len = SvUV (length);
1647		1958
1648	if (offset < 0)	1959	if (offset < 0)
1649	offset += svlen;	1960	offset += svlen;
1650		1961
…		…
1657	addr = (void *)(((intptr_t)addr) + offset);	1968	addr = (void *)(((intptr_t)addr) + offset);
1658	eio_page_align (&addr, &len);	1969	eio_page_align (&addr, &len);
1659	#if _POSIX_MEMLOCK_RANGE	1970	#if _POSIX_MEMLOCK_RANGE
1660	RETVAL = munlock (addr, len);	1971	RETVAL = munlock (addr, len);
1661	#else	1972	#else
1662	RETVAL = ((errno = ENOSYS), -1);	1973	RETVAL = EIO_ENOSYS ();
1663	#endif	1974	#endif
1664	}	1975	}
1665	OUTPUT:	1976	OUTPUT:
1666	RETVAL	1977	RETVAL
1667		1978
…		…
1669	munlockall ()	1980	munlockall ()
1670	CODE:	1981	CODE:
1671	#if _POSIX_MEMLOCK	1982	#if _POSIX_MEMLOCK
1672	munlockall ();	1983	munlockall ();
1673	#else	1984	#else
1674	RETVAL = -1;	1985	RETVAL = EIO_ENOSYS ();
1675	errno = ENOSYS;
1676	#endif	1986	#endif
1677	OUTPUT:	1987	OUTPUT:
1678	RETVAL	1988	RETVAL
		1989
		1990	int
		1991	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1992	CODE:
		1993	{
		1994	#if HAVE_LINUX_SPLICE
		1995	loff_t off_in_, off_out_;
		1996	RETVAL = splice (
		1997	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1998	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1999	length, flags
		2000	);
		2001	#else
		2002	RETVAL = EIO_ENOSYS ();
		2003	#endif
		2004	}
		2005	OUTPUT:
		2006	RETVAL
		2007
		2008	int
		2009	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2010	CODE:
		2011	#if HAVE_LINUX_SPLICE
		2012	RETVAL = tee (rfh, wfh, length, flags);
		2013	#else
		2014	RETVAL = EIO_ENOSYS ();
		2015	#endif
		2016	OUTPUT:
		2017	RETVAL
		2018
		2019	int
		2020	pipesize (aio_rfd rfh, int new_size = -1)
		2021	PROTOTYPE: $;$
		2022	CODE:
		2023	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2024	if (new_size >= 0)
		2025	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2026	else
		2027	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2028	#else
		2029	errno = ENOSYS;
		2030	RETVAL = -1;
		2031	#endif
		2032	OUTPUT:
		2033	RETVAL
		2034
		2035	void
		2036	pipe2 (int flags = 0)
		2037	PROTOTYPE: ;$
		2038	PPCODE:
		2039	{
		2040	int fd[2];
		2041	int res;
		2042
		2043	if (flags)
		2044	#if HAVE_PIPE2
		2045	res = pipe2 (fd, flags);
		2046	#else
		2047	res = (errno = ENOSYS, -1);
		2048	#endif
		2049	else
		2050	res = pipe (fd);
		2051
		2052	if (!res)
		2053	{
		2054	EXTEND (SP, 2);
		2055	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2056	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2057	}
		2058	}
		2059
		2060	UV
		2061	get_fdlimit ()
		2062	CODE:
		2063	#if HAVE_RLIMITS
		2064	struct rlimit rl;
		2065	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2066	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2067	#endif
		2068	XSRETURN_UNDEF;
		2069	OUTPUT:
		2070	RETVAL
		2071
		2072	void
		2073	min_fdlimit (UV limit = 0x7fffffffU)
		2074	CODE:
		2075	{
		2076	#if HAVE_RLIMITS
		2077	struct rlimit rl;
		2078	rlim_t orig_rlim_max;
		2079	UV bit;
		2080
		2081	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2082	goto fail;
		2083
		2084	if (rl.rlim_cur == RLIM_INFINITY)
		2085	XSRETURN_YES;
		2086
		2087	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2088
		2089	if (rl.rlim_cur < limit)
		2090	{
		2091	rl.rlim_cur = limit;
		2092
		2093	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2094	rl.rlim_max = rl.rlim_cur;
		2095	}
		2096
		2097	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2098	XSRETURN_YES;
		2099
		2100	if (errno == EPERM)
		2101	{
		2102	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2103	/* our limit overflows a system-wide limit */
		2104	/* try an adaptive algorithm, but do not lower the hardlimit */
		2105	rl.rlim_max = 0;
		2106	for (bit = 0x40000000U; bit; bit >>= 1)
		2107	{
		2108	rl.rlim_max |= bit;
		2109	rl.rlim_cur = rl.rlim_max;
		2110
		2111	/* nevr decrease the hard limit */
		2112	if (rl.rlim_max < orig_rlim_max)
		2113	break;
		2114
		2115	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2116	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2117	}
		2118
		2119	/* now, raise the soft limit to the max permitted */
		2120	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2121	{
		2122	rl.rlim_cur = rl.rlim_max;
		2123	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2124	errno = EPERM;
		2125	}
		2126	}
		2127	#endif
		2128	fail:
		2129	XSRETURN_UNDEF;
		2130	}
1679		2131
1680	void _on_next_submit (SV *cb)	2132	void _on_next_submit (SV *cb)
1681	CODE:	2133	CODE:
1682	SvREFCNT_dec (on_next_submit);	2134	SvREFCNT_dec (on_next_submit);
1683	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2135	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1684		2136
1685	PROTOTYPES: DISABLE	2137	PROTOTYPES: DISABLE
1686		2138
		2139	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2140
		2141	BOOT:
		2142	{
		2143	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2144	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2145	}
		2146
		2147	void
		2148	DESTROY (SV *self)
		2149	CODE:
		2150	{
		2151	aio_wd wd = SvAIO_WD (self);
		2152	#if HAVE_AT
		2153	{
		2154	SV *callback = &PL_sv_undef;
		2155	dREQ; /* clobbers next_pri :/ */
		2156	next_pri = req->pri; /* restore next_pri */
		2157	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2158	req->type = EIO_WD_CLOSE;
		2159	req->wd = wd;
		2160	REQ_SEND;
		2161	}
		2162	#else
		2163	eio_wd_close_sync (wd);
		2164	#endif
		2165	}
		2166
1687	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2167	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1688		2168
1689	void	2169	void
1690	cancel (aio_req_ornot req)	2170	cancel (aio_req_ornot req)
1691	CODE:	2171	CODE:
1692	eio_cancel (req);	2172	eio_cancel (req);
1693		2173
1694	void	2174	void
1695	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2175	cb (aio_req_ornot req, SV *callback = NO_INIT)
1696	PPCODE:	2176	PPCODE:
1697	{	2177	{
1698	if (GIMME_V != G_VOID)	2178	if (GIMME_V != G_VOID)
1699	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2179	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1700		2180
1701	if (items > 1)	2181	if (items > 1)
1702	{	2182	{
1703	SV *cb_cv =get_cb (callback);	2183	SV *cb_cv = get_cb (callback);
1704		2184
1705	SvREFCNT_dec (req->callback);	2185	SvREFCNT_dec (req->callback);
1706	req->callback = SvREFCNT_inc (cb_cv);	2186	req->callback = SvREFCNT_inc (cb_cv);
1707	}	2187	}
1708	}	2188	}
…		…
1765	limit (aio_req grp, int limit)	2245	limit (aio_req grp, int limit)
1766	CODE:	2246	CODE:
1767	eio_grp_limit (grp, limit);	2247	eio_grp_limit (grp, limit);
1768		2248
1769	void	2249	void
1770	feed (aio_req grp, SV *callback=&PL_sv_undef)	2250	feed (aio_req grp, SV *callback = &PL_sv_undef)
1771	CODE:	2251	CODE:
1772	{	2252	{
1773	SvREFCNT_dec (grp->sv2);	2253	SvREFCNT_dec (grp->sv2);
1774	grp->sv2 = newSVsv (callback);	2254	grp->sv2 = newSVsv (callback);
1775	grp->feed = aio_grp_feed;	2255	grp->feed = aio_grp_feed;

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