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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.185 by root, Thu Jul 7 22:36:18 2011 UTC vs.
Revision 1.251 by root, Sat Jan 6 01:04:42 2018 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	#if !_POSIX_MAPPED_FILES
324	#define EIO_DESTROY(req) req_destroy (req)	177	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		178	# define munmap(addr,length) EIO_ENOSYS ()
		179	#endif
		180
		181	#if !_POSIX_MEMORY_PROTECTION
		182	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		183	#endif
		184
		185	#define FOREIGN_MAGIC PERL_MAGIC_ext
		186
		187	static int ecb_cold
		188	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		189	{
		190	int old_errno = errno;
		191	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		192	errno = old_errno;
		193
		194	mg->mg_obj = 0; /* just in case */
		195
		196	SvREADONLY_off (sv);
		197
		198	if (SvPVX (sv) != mg->mg_ptr)
		199	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		200
		201	SvCUR_set (sv, 0);
		202	SvPVX (sv) = 0;
		203	SvOK_off (sv);
		204
		205	return 0;
		206	}
		207
		208	static MGVTBL mmap_vtbl = {
		209	0, 0, 0, 0, mmap_free
		210	};
		211
		212	static int ecb_cold
		213	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		214	{
		215	free (mg->mg_ptr);
		216	mg->mg_obj = 0; /* just in case */
		217
		218	SvREADONLY_off (sv);
		219
		220	if (SvPVX (sv) != mg->mg_ptr)
		221	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		222
		223	SvCUR_set (sv, 0);
		224	SvPVX (sv) = 0;
		225	SvOK_off (sv);
		226
		227	return 0;
		228	}
		229
		230	static MGVTBL sysfree_vtbl = {
		231	0, 0, 0, 0, sysfree_free
		232	};
		233
		234	/*****************************************************************************/
		235
		236	/* helper: set scalar to foreign ptr with custom free */
		237	static void
		238	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		239	{
		240	sv_force_normal (sv);
		241
		242	/* we store the length in mg_obj, as namlen is I32 :/ */
		243	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		244	->mg_obj = (SV *)length;
		245
		246	SvUPGRADE (sv, SVt_PV); /* nop... */
		247
		248	if (SvLEN (sv))
		249	Safefree (SvPVX (sv));
		250
		251	SvPVX (sv) = (char *)addr;
		252	SvCUR_set (sv, length);
		253	SvLEN_set (sv, 0);
		254	SvPOK_only (sv);
		255	}
		256
		257	static void
		258	sv_clear_foreign (SV *sv)
		259	{
		260	/* todo: iterate over magic and only free ours, but of course */
		261	/* the perl5porters will call that (correct) behaviour buggy */
		262	sv_unmagic (sv, FOREIGN_MAGIC);
		263	}
		264
		265	/*****************************************************************************/
		266
		267	static void
		268	fiemap (eio_req *req)
		269	{
		270	req->result = -1;
		271
		272	#if HAVE_FIEMAP
		273	/* assume some c99 */
		274	struct fiemap *fiemap = 0;
		275	size_t end_offset;
		276	int count = req->int3;
		277
		278	req->flags |= EIO_FLAG_PTR1_FREE;
		279
		280	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		281	/* increase in 3.5kb steps */
		282	if (count < 0)
		283	count = 8;
		284
		285	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		286	errno = ENOMEM;
		287	if (!fiemap)
		288	return;
		289
		290	req->ptr1 = fiemap;
		291
		292	fiemap->fm_start = req->offs;
		293	fiemap->fm_length = req->size;
		294	fiemap->fm_flags = req->int2;
		295	fiemap->fm_extent_count = count;
		296
		297	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		298	return;
		299
		300	if (req->int3 >= 0 /* not autosizing */
		301	|| !fiemap->fm_mapped_extents /* no more extents */
		302	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		303	goto done;
		304
		305	/* else we have to loop -
		306	* it would be tempting (actually I tried that first) to just query the
		307	* number of extents needed, but linux often feels like not returning all
		308	* extents, without telling us it left any out. this complicates
		309	* this quite a bit.
		310	*/
		311
		312	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		313
		314	for (;;)
		315	{
		316	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		317	char scratch[3072];
		318	struct fiemap *incmap = (struct fiemap *)scratch;
		319
		320	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		321	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		322	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		323	incmap->fm_flags = fiemap->fm_flags;
		324	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		325
		326	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		327	return;
		328
		329	if (!incmap->fm_mapped_extents)
		330	goto done;
		331
		332	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		333	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		334	errno = ENOMEM;
		335	if (!fiemap)
		336	return;
		337
		338	req->ptr1 = fiemap;
		339
		340	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		341	{
		342	struct fiemap_extent *e = incmap->fm_extents + count;
		343
		344	if (e->fe_logical + e->fe_length >= end_offset)
		345	goto done;
		346
		347	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		348
		349	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		350	goto done;
		351
		352	}
		353	}
		354
		355	done:
		356	req->result = 0;
		357
		358	#else
		359	errno = ENOSYS;
		360	#endif
		361	}
		362
		363	/*****************************************************************************/
325		364
326	enum {	365	enum {
327	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	366	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
328	};	367	};
329		368
330	#include "libeio/eio.c"
331
332	typedef eio_req *aio_req;	369	typedef eio_req *aio_req;
333	typedef eio_req *aio_req_ornot;	370	typedef eio_req *aio_req_ornot;
		371	typedef eio_wd aio_wd;
334		372
335	static SV *on_next_submit;	373	static SV *on_next_submit;
336	static int next_pri = EIO_PRI_DEFAULT;	374	static int next_pri = EIO_PRI_DEFAULT;
337	static int max_outstanding;	375	static int max_outstanding;
338		376
339	static s_epipe respipe;	377	static s_epipe respipe;
340		378
341	static void req_destroy (aio_req req);	379	static void req_destroy (aio_req req);
342	static void req_cancel (aio_req req);	380	static void req_cancel (aio_req req);
343		381
344	static void want_poll (void)	382	static void
		383	want_poll (void)
345	{	384	{
346	/* write a dummy byte to the pipe so fh becomes ready */	385	/* write a dummy byte to the pipe so fh becomes ready */
347	s_epipe_signal (&respipe);	386	s_epipe_signal (&respipe);
348	}	387	}
349		388
350	static void done_poll (void)	389	static void
		390	done_poll (void)
351	{	391	{
352	/* read any signals sent by the worker threads */	392	/* read any signals sent by the worker threads */
353	s_epipe_drain (&respipe);	393	s_epipe_drain (&respipe);
354	}	394	}
355		395
356	/* must be called at most once */	396	/* must be called at most once */
		397	static SV *
357	static SV *req_sv (aio_req req, HV *stash)	398	req_sv (aio_req req, HV *stash)
358	{	399	{
359	if (!req->self)	400	if (!req->self)
360	{	401	{
361	req->self = (SV *)newHV ();	402	req->self = (SV *)newHV ();
362	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	403	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
363	}	404	}
364		405
365	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	406	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
366	}	407	}
367		408
368	static aio_req SvAIO_REQ (SV *sv)	409	static SV *
		410	newSVaio_wd (aio_wd wd)
		411	{
		412	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		413	}
		414
		415	static aio_req
		416	SvAIO_REQ (SV *sv)
369	{	417	{
370	MAGIC *mg;	418	MAGIC *mg;
371		419
372	if (!SvROK (sv)	420	if (!SvROK (sv)
		421	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
373	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	422	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
374	&& SvSTASH (SvRV (sv)) != aio_req_stash	423	&& SvSTASH (SvRV (sv)) != aio_req_stash
375	&& !sv_derived_from (sv, "IO::AIO::REQ")))	424	&& !sv_derived_from (sv, "IO::AIO::REQ")))
376	croak ("object of class IO::AIO::REQ expected");	425	croak ("object of class IO::AIO::REQ expected");
377		426
378	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	427	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
379		428
380	return mg ? (aio_req)mg->mg_ptr : 0;	429	return mg ? (aio_req)mg->mg_ptr : 0;
381	}	430	}
382		431
		432	static aio_wd
		433	SvAIO_WD (SV *sv)
		434	{
		435	if (!SvROK (sv)
		436	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		437	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		438	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		439
		440	return (aio_wd)(long)SvIVX (SvRV (sv));
		441	}
		442
		443	static SV *
		444	newmortalFH (int fd, int flags)
		445	{
		446	if (fd < 0)
		447	return &PL_sv_undef;
		448
		449	GV *gv = (GV *)sv_newmortal ();
		450	char sym[64];
		451	int symlen;
		452
		453	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		454	gv_init (gv, aio_stash, sym, symlen, 0);
		455
		456	symlen = snprintf (
		457	sym,
		458	sizeof (sym),
		459	"%s&=%d",
		460	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		461	fd
		462	);
		463
		464	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		465	? (SV *)gv : &PL_sv_undef;
		466	}
		467
		468	static void
383	static void aio_grp_feed (aio_req grp)	469	aio_grp_feed (aio_req grp)
384	{	470	{
385	if (grp->sv2 && SvOK (grp->sv2))	471	if (grp->sv2 && SvOK (grp->sv2))
386	{	472	{
387	dSP;	473	dSP;
388		474
…		…
396	FREETMPS;	482	FREETMPS;
397	LEAVE;	483	LEAVE;
398	}	484	}
399	}	485	}
400		486
		487	static void
401	static void req_submit (eio_req *req)	488	req_submit (eio_req *req)
402	{	489	{
403	eio_submit (req);	490	eio_submit (req);
404		491
405	if (expect_false (on_next_submit))	492	if (expect_false (on_next_submit))
406	{	493	{
…		…
413	PUTBACK;	500	PUTBACK;
414	call_sv (cb, G_DISCARD | G_EVAL);	501	call_sv (cb, G_DISCARD | G_EVAL);
415	}	502	}
416	}	503	}
417		504
		505	static int
418	static int req_invoke (eio_req *req)	506	req_invoke (eio_req *req)
419	{	507	{
420	if (req->flags & FLAG_SV2_RO_OFF)	508	if (req->flags & FLAG_SV2_RO_OFF)
421	SvREADONLY_off (req->sv2);	509	SvREADONLY_off (req->sv2);
422		510
423	if (!EIO_CANCELLED (req) && req->callback)	511	if (!EIO_CANCELLED (req) && req->callback)
…		…
444	SvREADONLY_on (sv_result);	532	SvREADONLY_on (sv_result);
445	}	533	}
446		534
447	switch (req->type)	535	switch (req->type)
448	{	536	{
		537	case EIO_WD_OPEN:
		538	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		539	break;
		540
449	case EIO_READDIR:	541	case EIO_READDIR:
450	{	542	{
451	SV *rv = &PL_sv_undef;	543	SV *rv = &PL_sv_undef;
452		544
453	if (req->result >= 0)	545	if (req->result >= 0)
…		…
506	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	598	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
507	}	599	}
508	break;	600	break;
509		601
510	case EIO_OPEN:	602	case EIO_OPEN:
511	{	603	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;	604	break;
540		605
541	case EIO_STATVFS:	606	case EIO_STATVFS:
542	case EIO_FSTATVFS:	607	case EIO_FSTATVFS:
543	{	608	{
544	SV *rv = &PL_sv_undef;	609	SV *rv = &PL_sv_undef;
545		610
		611	#ifndef _WIN32
546	if (req->result >= 0)	612	if (req->result >= 0)
547	{	613	{
548	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	614	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
549	HV *hv = newHV ();	615	HV *hv = newHV ();
		616	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		617	* chooses to make it a struct.
		618	*/
		619	unsigned long fsid = 0;
		620	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
550		621
551	rv = sv_2mortal (newRV_noinc ((SV *)hv));	622	rv = sv_2mortal (newRV_noinc ((SV *)hv));
552		623
553	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	624	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);	625	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);	627	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);	628	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);	629	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);	630	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);	631	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);	632	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
562	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	633	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);	634	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
564	}	635	}
		636	#endif
565		637
566	PUSHs (rv);	638	PUSHs (rv);
567	}	639	}
568		640
569	break;	641	break;
…		…
593	break;	665	break;
594		666
595	case EIO_STAT:	667	case EIO_STAT:
596	case EIO_LSTAT:	668	case EIO_LSTAT:
597	case EIO_FSTAT:	669	case EIO_FSTAT:
598	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	670	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		671
599	PL_laststatval = req->result;	672	if (!(PL_laststatval = req->result))
		673	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
600	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	674	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		675
601	PUSHs (sv_result);	676	PUSHs (sv_result);
		677	break;
		678
		679	case EIO_SEEK:
		680	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
602	break;	681	break;
603		682
604	case EIO_READ:	683	case EIO_READ:
605	{	684	{
606	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	685	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
609	SvSETMAGIC (req->sv2);	688	SvSETMAGIC (req->sv2);
610	PUSHs (sv_result);	689	PUSHs (sv_result);
611	}	690	}
612	break;	691	break;
613		692
		693	case EIO_SLURP:
		694	{
		695	if (req->result >= 0)
		696	{
		697	/* if length was originally not known, we steal the malloc'ed memory */
		698	if (req->flags & EIO_FLAG_PTR2_FREE)
		699	{
		700	req->flags &= ~EIO_FLAG_PTR2_FREE;
		701	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		702	}
		703	else
		704	SvCUR_set (req->sv2, req->result);
		705	}
		706
		707	PUSHs (sv_result);
		708	}
		709	break;
		710
		711	case EIO_CUSTOM:
		712	if (req->feed == fiemap)
		713	{
		714	#if HAVE_FIEMAP
		715	if (!req->result)
		716	{
		717	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		718
		719	if (fiemap->fm_extent_count)
		720	{
		721	AV *av = newAV ();
		722	int i;
		723
		724	while (fiemap->fm_mapped_extents)
		725	{
		726	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		727	AV *ext_av = newAV ();
		728
		729	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		730	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		731	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		732	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		733
		734	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		735	}
		736
		737	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		738	}
		739	else
		740	{
		741	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		742	PUSHs (sv_result);
		743	}
		744	}
		745	#endif
		746	}
		747	else
		748	PUSHs (sv_result);
		749	break;
		750
614	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	751	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
615	if (req->result > 0)	752	if (req->result > 0)
616	SvIV_set (sv_result, 0);	753	SvIV_set (sv_result, 0);
617	/* FALLTHROUGH */	754	/* FALLTHROUGH */
618		755
…		…
639	}	776	}
640		777
641	return !!SvTRUE (ERRSV);	778	return !!SvTRUE (ERRSV);
642	}	779	}
643		780
		781	static void
644	static void req_destroy (aio_req req)	782	req_destroy (aio_req req)
645	{	783	{
646	if (req->self)	784	if (req->self)
647	{	785	{
648	sv_unmagic (req->self, PERL_MAGIC_ext);	786	sv_unmagic (req->self, PERL_MAGIC_ext);
649	SvREFCNT_dec (req->self);	787	SvREFCNT_dec (req->self);
650	}	788	}
651		789
652	SvREFCNT_dec (req->sv1);	790	SvREFCNT_dec (req->sv1);
653	SvREFCNT_dec (req->sv2);	791	SvREFCNT_dec (req->sv2);
		792	SvREFCNT_dec (req->sv3);
		793	SvREFCNT_dec (req->sv4);
654	SvREFCNT_dec (req->callback);	794	SvREFCNT_dec (req->callback);
655		795
656	Safefree (req);	796	free (req);
657	}	797	}
658		798
		799	static void
659	static void req_cancel_subs (aio_req grp)	800	req_cancel_subs (aio_req grp)
660	{	801	{
661	aio_req sub;
662
663	if (grp->type != EIO_GROUP)	802	if (grp->type != EIO_GROUP)
664	return;	803	return;
665		804
666	SvREFCNT_dec (grp->sv2);	805	SvREFCNT_dec (grp->sv2);
667	grp->sv2 = 0;	806	grp->sv2 = 0;
668		807
669	eio_grp_cancel (grp);	808	eio_grp_cancel (grp);
670	}	809	}
671		810
		811	static void ecb_cold
672	static void create_respipe (void)	812	create_respipe (void)
673	{	813	{
674	if (s_epipe_renew (&respipe))	814	if (s_epipe_renew (&respipe))
675	croak ("IO::AIO: unable to initialize result pipe");	815	croak ("IO::AIO: unable to initialize result pipe");
676	}	816	}
677		817
678	static void poll_wait (void)	818	static void
		819	poll_wait (void)
679	{	820	{
680	while (eio_nreqs ())	821	while (eio_nreqs ())
681	{	822	{
682	int size;	823	int size;
683		824
684	X_LOCK (reslock);	825	X_LOCK (EIO_POOL->reslock);
685	size = res_queue.size;	826	size = EIO_POOL->res_queue.size;
686	X_UNLOCK (reslock);	827	X_UNLOCK (EIO_POOL->reslock);
687		828
688	if (size)	829	if (size)
689	return;	830	return;
690		831
691	etp_maybe_start_thread ();	832	etp_maybe_start_thread (EIO_POOL);
692		833
693	s_epipe_wait (&respipe);	834	s_epipe_wait (&respipe);
694	}	835	}
695	}	836	}
696		837
697	static int poll_cb (void)	838	static int
		839	poll_cb (void)
698	{	840	{
699	for (;;)	841	for (;;)
700	{	842	{
701	int res = eio_poll ();	843	int res = eio_poll ();
702		844
…		…
708		850
709	poll_wait ();	851	poll_wait ();
710	}	852	}
711	}	853	}
712		854
713	static void atfork_child (void)	855	static void ecb_cold
		856	reinit (void)
714	{	857	{
715	create_respipe ();	858	create_respipe ();
		859
		860	if (eio_init (want_poll, done_poll) < 0)
		861	croak ("IO::AIO: unable to initialise eio library");
716	}	862	}
717		863
718	/*****************************************************************************/	864	/*****************************************************************************/
719		865
720	#if !_POSIX_MAPPED_FILES	866	static SV *
721	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
722	# define munmap(addr,length) (errno = ENOSYS, -1)
723	#endif
724
725	#if !_POSIX_MEMORY_PROTECTION
726	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
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
733
734	#define MMAP_MAGIC PERL_MAGIC_ext
735
736	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
737	{
738	int old_errno = errno;
739	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
740	errno = old_errno;
741
742	mg->mg_obj = 0; /* just in case */
743
744	SvREADONLY_off (sv);
745
746	if (SvPVX (sv) != mg->mg_ptr)
747	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
748
749	SvCUR_set (sv, 0);
750	SvPVX (sv) = 0;
751	SvOK_off (sv);
752
753	return 0;
754	}
755
756	static MGVTBL mmap_vtbl = {
757	0, 0, 0, 0, mmap_free
758	};
759
760	/*****************************************************************************/
761
762	static SV * get_cb (SV *cb_sv)	867	get_cb (SV *cb_sv)
763	{	868	{
764	SvGETMAGIC (cb_sv);	869	SvGETMAGIC (cb_sv);
765	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	870	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
766	}	871	}
767		872
		873	static aio_req ecb_noinline
		874	dreq (SV *callback)
		875	{
		876	SV *cb_cv;
		877	aio_req req;
		878	int req_pri = next_pri;
		879	next_pri = EIO_PRI_DEFAULT;
		880
		881	cb_cv = get_cb (callback);
		882
		883	req = calloc (sizeof (*req), 1);
		884	if (!req)
		885	croak ("out of memory during eio_req allocation");
		886
		887	req->callback = SvREFCNT_inc (cb_cv);
		888	req->pri = req_pri;
		889
		890	return req;
		891	}
		892
768	#define dREQ \	893	#define dREQ \
769	SV *cb_cv; \	894	aio_req req = dreq (callback); \
770	aio_req req; \
771	int req_pri = next_pri; \
772	next_pri = EIO_PRI_DEFAULT; \
773	\
774	cb_cv = get_cb (callback); \
775	\
776	Newz (0, req, 1, eio_req); \
777	if (!req) \
778	croak ("out of memory during eio_req allocation"); \
779	\
780	req->callback = SvREFCNT_inc (cb_cv); \
781	req->pri = req_pri
782		895
783	#define REQ_SEND \	896	#define REQ_SEND \
784	PUTBACK; \	897	PUTBACK; \
785	req_submit (req); \	898	req_submit (req); \
786	SPAGAIN; \	899	SPAGAIN; \
787	\	900	\
788	if (GIMME_V != G_VOID) \	901	if (GIMME_V != G_VOID) \
789	XPUSHs (req_sv (req, aio_req_stash));	902	XPUSHs (req_sv (req, aio_req_stash));
790		903
		904	ecb_inline void
		905	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		906	{
		907	if (expect_false (SvROK (path)))
		908	{
		909	SV *rv = SvRV (path);
		910	SV *wdob;
		911
		912	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		913	{
		914	path = AvARRAY (rv)[1];
		915	wdob = AvARRAY (rv)[0];
		916
		917	if (SvOK (wdob))
		918	{
		919	*wd = SvAIO_WD (wdob);
		920	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		921	}
		922	else
		923	*wd = EIO_INVALID_WD;
		924	}
		925	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		926	{
		927	*wd = (aio_wd)(long)SvIVX (rv);
		928	*wdsv = SvREFCNT_inc_NN (rv);
		929	*ptr = ".";
		930	return; /* path set to "." */
		931	}
		932	else
		933	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		934	}
		935
		936	*pathsv = newSVsv (path);
		937	*ptr = SvPVbyte_nolen (*pathsv);
		938	}
		939
		940	static void ecb_noinline
		941	req_set_path1 (aio_req req, SV *path)
		942	{
		943	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		944	}
		945
		946	static void ecb_noinline
		947	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		948	{
		949	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		950
		951	switch (SvTYPE (rv))
		952	{
		953	case SVt_PVIO:
		954	case SVt_PVLV:
		955	case SVt_PVGV:
		956	req->type = type_fh;
		957	req->sv1 = newSVsv (fh_or_path);
		958	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		959	break;
		960
		961	default:
		962	req->type = type_path;
		963	req_set_path1 (req, fh_or_path);
		964	break;
		965	}
		966	}
		967
		968	XS(boot_IO__AIO) ecb_cold;
		969
791	MODULE = IO::AIO PACKAGE = IO::AIO	970	MODULE = IO::AIO PACKAGE = IO::AIO
792		971
793	PROTOTYPES: ENABLE	972	PROTOTYPES: ENABLE
794		973
795	BOOT:	974	BOOT:
…		…
799	IV iv;	978	IV iv;
800	} *civ, const_iv[] = {	979	} *civ, const_iv[] = {
801	# define const_niv(name, value) { # name, (IV) value },	980	# define const_niv(name, value) { # name, (IV) value },
802	# define const_iv(name) { # name, (IV) name },	981	# define const_iv(name) { # name, (IV) name },
803	# define const_eio(name) { # name, (IV) EIO_ ## name },	982	# define const_eio(name) { # name, (IV) EIO_ ## name },
		983
		984	/* you have to re-run ./gendef0 after adding/removing any constants here */
		985	/* the first block can be undef if missing */
		986	const_iv (ENOSYS)
804	const_iv (EXDEV)	987	const_iv (EXDEV)
805	const_iv (ENOSYS)	988	const_iv (EBADR)
		989
		990	/* for lseek */
		991	const_iv (SEEK_DATA)
		992	const_iv (SEEK_HOLE)
		993
		994	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		995	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		996	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		997	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		998	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		999	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1000
		1001	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1002	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1003	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1004	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1005	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1006
		1007	/* the second block will be 0 when missing */
806	const_iv (O_RDONLY)	1008	const_iv (O_RDONLY)
807	const_iv (O_WRONLY)	1009	const_iv (O_WRONLY)
808	const_iv (O_RDWR)	1010	const_iv (O_RDWR)
809	const_iv (O_CREAT)	1011	const_iv (O_CREAT)
810	const_iv (O_TRUNC)	1012	const_iv (O_TRUNC)
…		…
823	const_iv (O_SEARCH)	1025	const_iv (O_SEARCH)
824	const_iv (O_DIRECTORY)	1026	const_iv (O_DIRECTORY)
825	const_iv (O_DSYNC)	1027	const_iv (O_DSYNC)
826	const_iv (O_RSYNC)	1028	const_iv (O_RSYNC)
827	const_iv (O_SYNC)	1029	const_iv (O_SYNC)
		1030	const_iv (O_PATH)
		1031	const_iv (O_TMPFILE)
828	const_iv (O_TTY_INIT)	1032	const_iv (O_TTY_INIT)
829		1033
830	const_iv (S_IFIFO)	1034	const_iv (S_IFIFO)
831	const_iv (S_IFCHR)	1035	const_iv (S_IFCHR)
832	const_iv (S_IFBLK)	1036	const_iv (S_IFBLK)
…		…
834	const_iv (S_IFREG)	1038	const_iv (S_IFREG)
835	const_iv (S_IFDIR)	1039	const_iv (S_IFDIR)
836	const_iv (S_IFWHT)	1040	const_iv (S_IFWHT)
837	const_iv (S_IFSOCK)	1041	const_iv (S_IFSOCK)
838	const_iv (S_IFMT)	1042	const_iv (S_IFMT)
839
840	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
841	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
842	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
843	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
844	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
845	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
846
847	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
848	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
849	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
850	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
851	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
852		1043
853	const_iv (ST_RDONLY)	1044	const_iv (ST_RDONLY)
854	const_iv (ST_NOSUID)	1045	const_iv (ST_NOSUID)
855	const_iv (ST_NODEV)	1046	const_iv (ST_NODEV)
856	const_iv (ST_NOEXEC)	1047	const_iv (ST_NOEXEC)
…		…
866	const_iv (PROT_NONE)	1057	const_iv (PROT_NONE)
867	const_iv (PROT_EXEC)	1058	const_iv (PROT_EXEC)
868	const_iv (PROT_READ)	1059	const_iv (PROT_READ)
869	const_iv (PROT_WRITE)	1060	const_iv (PROT_WRITE)
870		1061
871	/*const_iv (MAP_FIXED)*/
872	const_iv (MAP_PRIVATE)	1062	const_iv (MAP_PRIVATE)
873	const_iv (MAP_SHARED)	1063	const_iv (MAP_SHARED)
		1064	const_iv (MAP_FIXED)
874	const_iv (MAP_ANONYMOUS)	1065	const_iv (MAP_ANONYMOUS)
875		1066
876	/* linuxish */	1067	/* linuxish */
877	const_iv (MAP_HUGETLB)
878	const_iv (MAP_LOCKED)	1068	const_iv (MAP_LOCKED)
879	const_iv (MAP_NORESERVE)	1069	const_iv (MAP_NORESERVE)
880	const_iv (MAP_POPULATE)	1070	const_iv (MAP_POPULATE)
881	const_iv (MAP_NONBLOCK)	1071	const_iv (MAP_NONBLOCK)
		1072	const_iv (MAP_GROWSDOWN)
		1073	const_iv (MAP_32BIT)
		1074	const_iv (MAP_HUGETLB)
		1075	const_iv (MAP_STACK)
		1076
		1077	const_iv (F_DUPFD_CLOEXEC)
		1078
		1079	const_iv (F_OFD_GETLK)
		1080	const_iv (F_OFD_SETLK)
		1081	const_iv (F_OFD_GETLKW)
		1082
		1083	const_iv (FIFREEZE)
		1084	const_iv (FITHAW)
		1085	const_iv (FITRIM)
		1086	const_iv (FICLONE)
		1087	const_iv (FICLONERANGE)
		1088	const_iv (FIDEDUPERANGE)
		1089
		1090	const_iv (FS_IOC_GETFLAGS)
		1091	const_iv (FS_IOC_SETFLAGS)
		1092	const_iv (FS_IOC_GETVERSION)
		1093	const_iv (FS_IOC_SETVERSION)
		1094	const_iv (FS_IOC_FIEMAP)
		1095	const_iv (FS_IOC_FSGETXATTR)
		1096	const_iv (FS_IOC_FSSETXATTR)
		1097	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1098	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1099	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1100
		1101	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1102
		1103	const_iv (FS_SECRM_FL)
		1104	const_iv (FS_UNRM_FL)
		1105	const_iv (FS_COMPR_FL)
		1106	const_iv (FS_SYNC_FL)
		1107	const_iv (FS_IMMUTABLE_FL)
		1108	const_iv (FS_APPEND_FL)
		1109	const_iv (FS_NODUMP_FL)
		1110	const_iv (FS_NOATIME_FL)
		1111	const_iv (FS_DIRTY_FL)
		1112	const_iv (FS_COMPRBLK_FL)
		1113	const_iv (FS_NOCOMP_FL)
		1114	const_iv (FS_ENCRYPT_FL)
		1115	const_iv (FS_BTREE_FL)
		1116	const_iv (FS_INDEX_FL)
		1117	const_iv (FS_JOURNAL_DATA_FL)
		1118	const_iv (FS_NOTAIL_FL)
		1119	const_iv (FS_DIRSYNC_FL)
		1120	const_iv (FS_TOPDIR_FL)
		1121	const_iv (FS_FL_USER_MODIFIABLE)
		1122
		1123	const_iv (FS_XFLAG_REALTIME)
		1124	const_iv (FS_XFLAG_PREALLOC)
		1125	const_iv (FS_XFLAG_IMMUTABLE)
		1126	const_iv (FS_XFLAG_APPEND)
		1127	const_iv (FS_XFLAG_SYNC)
		1128	const_iv (FS_XFLAG_NOATIME)
		1129	const_iv (FS_XFLAG_NODUMP)
		1130	const_iv (FS_XFLAG_RTINHERIT)
		1131	const_iv (FS_XFLAG_PROJINHERIT)
		1132	const_iv (FS_XFLAG_NOSYMLINKS)
		1133	const_iv (FS_XFLAG_EXTSIZE)
		1134	const_iv (FS_XFLAG_EXTSZINHERIT)
		1135	const_iv (FS_XFLAG_NODEFRAG)
		1136	const_iv (FS_XFLAG_FILESTREAM)
		1137	const_iv (FS_XFLAG_DAX)
		1138	const_iv (FS_XFLAG_HASATTR)
		1139
		1140	const_iv (FIEMAP_FLAG_SYNC)
		1141	const_iv (FIEMAP_FLAG_XATTR)
		1142	const_iv (FIEMAP_FLAGS_COMPAT)
		1143	const_iv (FIEMAP_EXTENT_LAST)
		1144	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1145	const_iv (FIEMAP_EXTENT_DELALLOC)
		1146	const_iv (FIEMAP_EXTENT_ENCODED)
		1147	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1148	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1149	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1150	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1151	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1152	const_iv (FIEMAP_EXTENT_MERGED)
		1153	const_iv (FIEMAP_EXTENT_SHARED)
		1154
		1155	const_iv (SPLICE_F_MOVE)
		1156	const_iv (SPLICE_F_NONBLOCK)
		1157	const_iv (SPLICE_F_MORE)
		1158	const_iv (SPLICE_F_GIFT)
		1159
		1160	/* these are libeio constants, and are independent of gendef0 */
		1161	const_eio (SEEK_SET)
		1162	const_eio (SEEK_CUR)
		1163	const_eio (SEEK_END)
882		1164
883	const_eio (MCL_FUTURE)	1165	const_eio (MCL_FUTURE)
884	const_eio (MCL_CURRENT)	1166	const_eio (MCL_CURRENT)
885		1167
886	const_eio (MS_ASYNC)	1168	const_eio (MS_ASYNC)
…		…
892	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1174	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
893	const_eio (SYNC_FILE_RANGE_WRITE)	1175	const_eio (SYNC_FILE_RANGE_WRITE)
894	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1176	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
895		1177
896	const_eio (FALLOC_FL_KEEP_SIZE)	1178	const_eio (FALLOC_FL_KEEP_SIZE)
		1179	const_eio (FALLOC_FL_PUNCH_HOLE)
		1180	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1181	const_eio (FALLOC_FL_ZERO_RANGE)
		1182	const_eio (FALLOC_FL_INSERT_RANGE)
		1183	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1184
		1185	const_eio (RENAME_NOREPLACE)
		1186	const_eio (RENAME_EXCHANGE)
		1187	const_eio (RENAME_WHITEOUT)
897		1188
898	const_eio (READDIR_DENTS)	1189	const_eio (READDIR_DENTS)
899	const_eio (READDIR_DIRS_FIRST)	1190	const_eio (READDIR_DIRS_FIRST)
900	const_eio (READDIR_STAT_ORDER)	1191	const_eio (READDIR_STAT_ORDER)
901	const_eio (READDIR_FOUND_UNKNOWN)	1192	const_eio (READDIR_FOUND_UNKNOWN)
…		…
912	};	1203	};
913		1204
914	aio_stash = gv_stashpv ("IO::AIO" , 1);	1205	aio_stash = gv_stashpv ("IO::AIO" , 1);
915	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1206	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
916	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1207	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1208	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
917		1209
918	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1210	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));	1211	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
920		1212
921	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1213	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
922		1214
923	create_respipe ();	1215	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	}	1216	}
		1217
		1218	void
		1219	reinit ()
		1220	PROTOTYPE:
931		1221
932	void	1222	void
933	max_poll_reqs (unsigned int nreqs)	1223	max_poll_reqs (unsigned int nreqs)
934	PROTOTYPE: $	1224	PROTOTYPE: $
935	CODE:	1225	CODE:
…		…
970	PROTOTYPE: $	1260	PROTOTYPE: $
971	CODE:	1261	CODE:
972	max_outstanding = maxreqs;	1262	max_outstanding = maxreqs;
973		1263
974	void	1264	void
975	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1265	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
976	PPCODE:	1266	PPCODE:
977	{	1267	{
978	dREQ;	1268	dREQ;
979		1269
		1270	req->type = EIO_WD_OPEN;
		1271	req_set_path1 (req, pathname);
		1272
		1273	REQ_SEND;
		1274	}
		1275
		1276	void
		1277	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1278	PPCODE:
		1279	{
		1280	dREQ;
		1281
980	req->type = EIO_OPEN;	1282	req->type = EIO_OPEN;
981	req->sv1 = newSVsv (pathname);	1283	req_set_path1 (req, pathname);
982	req->ptr1 = SvPVbyte_nolen (req->sv1);
983	req->int1 = flags;	1284	req->int1 = flags;
984	req->int2 = mode;	1285	req->int2 = mode;
985		1286
986	REQ_SEND;	1287	REQ_SEND;
987	}	1288	}
988		1289
989	void	1290	void
990	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1291	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
991	ALIAS:	1292	ALIAS:
992	aio_fsync = EIO_FSYNC	1293	aio_fsync = EIO_FSYNC
993	aio_fdatasync = EIO_FDATASYNC	1294	aio_fdatasync = EIO_FDATASYNC
		1295	aio_syncfs = EIO_SYNCFS
994	PPCODE:	1296	PPCODE:
995	{	1297	{
996	int fd = s_fileno_croak (fh, 0);	1298	int fd = s_fileno_croak (fh, 0);
997	dREQ;	1299	dREQ;
998		1300
999	req->type = ix;	1301	req->type = ix;
1000	req->sv1 = newSVsv (fh);	1302	req->sv1 = newSVsv (fh);
1001	req->int1 = fd;	1303	req->int1 = fd;
1002		1304
1003	REQ_SEND (req);	1305	REQ_SEND;
1004	}	1306	}
1005		1307
1006	void	1308	void
1007	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1309	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1008	PPCODE:	1310	PPCODE:
1009	{	1311	{
1010	int fd = s_fileno_croak (fh, 0);	1312	int fd = s_fileno_croak (fh, 0);
1011	dREQ;	1313	dREQ;
1012		1314
1013	req->type = EIO_SYNC_FILE_RANGE;	1315	req->type = EIO_SYNC_FILE_RANGE;
1014	req->sv1 = newSVsv (fh);	1316	req->sv1 = newSVsv (fh);
1015	req->int1 = fd;	1317	req->int1 = fd;
1016	req->offs = offset;	1318	req->offs = offset;
1017	req->size = nbytes;	1319	req->size = nbytes;
1018	req->int2 = flags;	1320	req->int2 = flags;
1019		1321
1020	REQ_SEND (req);	1322	REQ_SEND;
1021	}	1323	}
1022		1324
1023	void	1325	void
1024	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1326	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1025	PPCODE:	1327	PPCODE:
1026	{	1328	{
1027	int fd = s_fileno_croak (fh, 0);	1329	int fd = s_fileno_croak (fh, 0);
1028	dREQ;	1330	dREQ;
1029		1331
1030	req->type = EIO_FALLOCATE;	1332	req->type = EIO_FALLOCATE;
1031	req->sv1 = newSVsv (fh);	1333	req->sv1 = newSVsv (fh);
1032	req->int1 = fd;	1334	req->int1 = fd;
1033	req->int2 = mode;	1335	req->int2 = mode;
1034	req->offs = offset;	1336	req->offs = offset;
1035	req->size = len;	1337	req->size = len;
1036		1338
1037	REQ_SEND (req);	1339	REQ_SEND;
1038	}	1340	}
1039		1341
1040	void	1342	void
1041	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1343	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1042	PPCODE:	1344	PPCODE:
1043	{	1345	{
1044	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1346	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1045	int fd = s_fileno_croak (fh, 0);	1347	int fd = s_fileno_croak (fh, 0);
1046	dREQ;	1348	dREQ;
1047		1349
1048	if (close_pipe < 0)	1350	if (expect_false (close_fd < 0))
1049	{	1351	{
1050	int pipefd [2];	1352	int pipefd [2];
1051		1353
		1354	if (
		1355	#ifdef _WIN32
		1356	_pipe (pipefd, 1, _O_BINARY) < 0
		1357	#else
1052	if (pipe (pipefd) < 0	1358	pipe (pipefd) < 0
1053	|| close (pipefd [1]) < 0
1054	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1359	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1360	#endif
		1361	|| close (pipefd [1]) < 0
		1362	)
1055	abort (); /*D*/	1363	abort (); /*D*/
1056		1364
1057	close_pipe = pipefd [0];	1365	close_fd = pipefd [0];
1058	}	1366	}
1059		1367
1060	req->type = EIO_DUP2;	1368	req->type = EIO_DUP2;
1061	req->int1 = close_pipe;	1369	req->int1 = close_fd;
1062	req->sv2 = newSVsv (fh);	1370	req->sv2 = newSVsv (fh);
1063	req->int2 = fd;	1371	req->int2 = fd;
1064		1372
1065	REQ_SEND (req);	1373	REQ_SEND;
1066	}	1374	}
1067		1375
1068	void	1376	void
		1377	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1378	PPCODE:
		1379	{
		1380	int fd = s_fileno_croak (fh, 0);
		1381	dREQ;
		1382
		1383	req->type = EIO_SEEK;
		1384	req->sv1 = newSVsv (fh);
		1385	req->int1 = fd;
		1386	req->offs = SvVAL64 (offset);
		1387	req->int2 = whence;
		1388
		1389	REQ_SEND;
		1390	}
		1391
		1392	void
1069	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1393	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1070	ALIAS:	1394	ALIAS:
1071	aio_read = EIO_READ	1395	aio_read = EIO_READ
1072	aio_write = EIO_WRITE	1396	aio_write = EIO_WRITE
1073	PPCODE:	1397	PPCODE:
1074	{	1398	{
…		…
1090	len = svlen - dataoffset;	1414	len = svlen - dataoffset;
1091	}	1415	}
1092	else	1416	else
1093	{	1417	{
1094	/* read: check type and grow scalar as necessary */	1418	/* read: check type and grow scalar as necessary */
1095	SvUPGRADE (data, SVt_PV);	1419	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1096	svptr = SvGROW (data, len + dataoffset + 1);	1420	svptr = sv_grow (data, len + dataoffset);
		1421	else if (SvCUR (data) < len + dataoffset)
		1422	croak ("length + dataoffset outside of scalar, and cannot grow");
1097	}	1423	}
1098		1424
1099	{	1425	{
1100	dREQ;	1426	dREQ;
1101		1427
…		…
1117	REQ_SEND;	1443	REQ_SEND;
1118	}	1444	}
1119	}	1445	}
1120		1446
1121	void	1447	void
		1448	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1449	ALIAS:
		1450	aio_ioctl = EIO_IOCTL
		1451	aio_fcntl = EIO_FCNTL
		1452	PPCODE:
		1453	{
		1454	int fd = s_fileno_croak (fh, 0);
		1455	char *svptr;
		1456
		1457	if (SvPOK (arg) || !SvNIOK (arg))
		1458	{
		1459	STRLEN svlen;
		1460	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1461	#ifdef IOCPARM_LEN
		1462	STRLEN need = IOCPARM_LEN (request);
		1463	#else
		1464	STRLEN need = 256;
		1465	#endif
		1466
		1467	if (svlen < need)
		1468	svptr = SvGROW (arg, need);
		1469	}
		1470	else
		1471	svptr = (char *)SvIV (arg);
		1472
		1473	{
		1474	dREQ;
		1475
		1476	req->type = ix;
		1477	req->sv1 = newSVsv (fh);
		1478	req->int1 = fd;
		1479	req->int2 = (long)request;
		1480	req->sv2 = SvREFCNT_inc (arg);
		1481	req->ptr2 = svptr;
		1482
		1483	REQ_SEND;
		1484	}
		1485	}
		1486
		1487	void
1122	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1488	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1123	ALIAS:	1489	ALIAS:
1124	aio_readlink = EIO_READLINK	1490	aio_readlink = EIO_READLINK
1125	aio_realpath = EIO_REALPATH	1491	aio_realpath = EIO_REALPATH
1126	PPCODE:	1492	PPCODE:
1127	{	1493	{
1128	SV *data;
1129	dREQ;	1494	dREQ;
1130		1495
1131	req->type = ix;	1496	req->type = ix;
1132	req->sv1 = newSVsv (path);	1497	req_set_path1 (req, pathname);
1133	req->ptr1 = SvPVbyte_nolen (req->sv1);
1134		1498
1135	REQ_SEND;	1499	REQ_SEND;
1136	}	1500	}
1137		1501
1138	void	1502	void
1139	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1503	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1140	PPCODE:	1504	PPCODE:
1141	{	1505	{
1142	int ifd = s_fileno_croak (in_fh , 0);	1506	int ifd = s_fileno_croak (in_fh , 0);
1143	int ofd = s_fileno_croak (out_fh, 1);	1507	int ofd = s_fileno_croak (out_fh, 1);
1144	dREQ;	1508	dREQ;
1145		1509
1146	req->type = EIO_SENDFILE;	1510	req->type = EIO_SENDFILE;
1147	req->sv1 = newSVsv (out_fh);	1511	req->sv1 = newSVsv (out_fh);
1148	req->int1 = ofd;	1512	req->int1 = ofd;
…		…
1153		1517
1154	REQ_SEND;	1518	REQ_SEND;
1155	}	1519	}
1156		1520
1157	void	1521	void
1158	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1522	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1159	PPCODE:	1523	PPCODE:
1160	{	1524	{
1161	int fd = s_fileno_croak (fh, 0);	1525	int fd = s_fileno_croak (fh, 0);
1162	dREQ;	1526	dREQ;
1163		1527
1164	req->type = EIO_READAHEAD;	1528	req->type = EIO_READAHEAD;
1165	req->sv1 = newSVsv (fh);	1529	req->sv1 = newSVsv (fh);
1166	req->int1 = fd;	1530	req->int1 = fd;
…		…
1169		1533
1170	REQ_SEND;	1534	REQ_SEND;
1171	}	1535	}
1172		1536
1173	void	1537	void
1174	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1538	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1175	ALIAS:	1539	ALIAS:
1176	aio_stat = EIO_STAT	1540	aio_stat = EIO_STAT
1177	aio_lstat = EIO_LSTAT	1541	aio_lstat = EIO_LSTAT
1178	aio_statvfs = EIO_STATVFS	1542	aio_statvfs = EIO_STATVFS
1179	PPCODE:	1543	PPCODE:
1180	{	1544	{
1181	dREQ;	1545	dREQ;
1182		1546
1183	req->sv1 = newSVsv (fh_or_path);	1547	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1184
1185	if (SvPOK (req->sv1))
1186	{
1187	req->type = ix;
1188	req->ptr1 = SvPVbyte_nolen (req->sv1);
1189	}
1190	else
1191	{
1192	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1193	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1194	}
1195		1548
1196	REQ_SEND;	1549	REQ_SEND;
1197	}	1550	}
1198		1551
1199	UV	1552	UV
1200	major (UV dev)	1553	major (UV dev)
1201	ALIAS:	1554	ALIAS:
1202	minor = 1	1555	minor = 1
1203	CODE:	1556	CODE:
1204	RETVAL = ix ? major (dev) : minor (dev);	1557	RETVAL = ix ? minor (dev) : major (dev);
1205	OUTPUT:	1558	OUTPUT:
1206	RETVAL	1559	RETVAL
1207		1560
1208	UV	1561	UV
1209	makedev (UV maj, UV min)	1562	makedev (UV maj, UV min)
…		…
1211	RETVAL = makedev (maj, min);	1564	RETVAL = makedev (maj, min);
1212	OUTPUT:	1565	OUTPUT:
1213	RETVAL	1566	RETVAL
1214		1567
1215	void	1568	void
1216	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1569	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1217	PPCODE:	1570	PPCODE:
1218	{	1571	{
1219	dREQ;	1572	dREQ;
1220		1573
1221	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1574	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1222	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1575	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1223	req->sv1 = newSVsv (fh_or_path);	1576	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1224
1225	if (SvPOK (req->sv1))
1226	{
1227	req->type = EIO_UTIME;
1228	req->ptr1 = SvPVbyte_nolen (req->sv1);
1229	}
1230	else
1231	{
1232	req->type = EIO_FUTIME;
1233	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1234	}
1235		1577
1236	REQ_SEND;	1578	REQ_SEND;
1237	}	1579	}
1238		1580
1239	void	1581	void
1240	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1582	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1241	PPCODE:	1583	PPCODE:
1242	{	1584	{
1243	dREQ;	1585	dREQ;
1244		1586
1245	req->sv1 = newSVsv (fh_or_path);
1246	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1587	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1247		1588	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1248	if (SvPOK (req->sv1))
1249	{
1250	req->type = EIO_TRUNCATE;
1251	req->ptr1 = SvPVbyte_nolen (req->sv1);
1252	}
1253	else
1254	{
1255	req->type = EIO_FTRUNCATE;
1256	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1257	}
1258		1589
1259	REQ_SEND;	1590	REQ_SEND;
1260	}	1591	}
1261		1592
1262	void	1593	void
1263	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1594	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1264	ALIAS:
1265	aio_chmod = EIO_CHMOD
1266	aio_mkdir = EIO_MKDIR
1267	PPCODE:	1595	PPCODE:
1268	{	1596	{
1269	dREQ;	1597	dREQ;
1270		1598
1271	req->int2 = mode;	1599	req->int2 = mode;
1272	req->sv1 = newSVsv (fh_or_path);	1600	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1273
1274	if (SvPOK (req->sv1))
1275	{
1276	req->type = ix;
1277	req->ptr1 = SvPVbyte_nolen (req->sv1);
1278	}
1279	else
1280	{
1281	req->type = EIO_FCHMOD;
1282	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1283	}
1284		1601
1285	REQ_SEND;	1602	REQ_SEND;
1286	}	1603	}
1287		1604
1288	void	1605	void
1289	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1606	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1290	PPCODE:	1607	PPCODE:
1291	{	1608	{
1292	dREQ;	1609	dREQ;
1293		1610
1294	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1611	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1295	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1612	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1296	req->sv1 = newSVsv (fh_or_path);	1613	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1297
1298	if (SvPOK (req->sv1))
1299	{
1300	req->type = EIO_CHOWN;
1301	req->ptr1 = SvPVbyte_nolen (req->sv1);
1302	}
1303	else
1304	{
1305	req->type = EIO_FCHOWN;
1306	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1307	}
1308		1614
1309	REQ_SEND;	1615	REQ_SEND;
1310	}	1616	}
1311		1617
1312	void	1618	void
1313	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1619	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1314	PPCODE:	1620	PPCODE:
1315	{	1621	{
1316	dREQ;	1622	dREQ;
1317		1623
1318	req->type = EIO_READDIR;	1624	req->type = EIO_READDIR;
1319	req->sv1 = newSVsv (pathname);
1320	req->ptr1 = SvPVbyte_nolen (req->sv1);
1321	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1625	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1322		1626
1323	if (flags & EIO_READDIR_DENTS)	1627	if (flags & EIO_READDIR_DENTS)
1324	req->int1 |= EIO_READDIR_CUSTOM2;	1628	req->int1 |= EIO_READDIR_CUSTOM2;
1325		1629
		1630	req_set_path1 (req, pathname);
		1631
1326	REQ_SEND;	1632	REQ_SEND;
1327	}	1633	}
1328		1634
1329	void	1635	void
		1636	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1637	PPCODE:
		1638	{
		1639	dREQ;
		1640
		1641	req->type = EIO_MKDIR;
		1642	req->int2 = mode;
		1643	req_set_path1 (req, pathname);
		1644
		1645	REQ_SEND;
		1646	}
		1647
		1648	void
1330	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1649	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1331	ALIAS:	1650	ALIAS:
1332	aio_unlink = EIO_UNLINK	1651	aio_unlink = EIO_UNLINK
1333	aio_rmdir = EIO_RMDIR	1652	aio_rmdir = EIO_RMDIR
1334	aio_readdir = EIO_READDIR	1653	aio_readdir = EIO_READDIR
1335	PPCODE:	1654	PPCODE:
1336	{	1655	{
1337	dREQ;	1656	dREQ;
1338		1657
1339	req->type = ix;	1658	req->type = ix;
1340	req->sv1 = newSVsv (pathname);	1659	req_set_path1 (req, pathname);
1341	req->ptr1 = SvPVbyte_nolen (req->sv1);
1342		1660
1343	REQ_SEND;	1661	REQ_SEND;
1344	}	1662	}
1345		1663
1346	void	1664	void
1347	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1665	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1348	ALIAS:	1666	ALIAS:
1349	aio_link = EIO_LINK	1667	aio_link = EIO_LINK
1350	aio_symlink = EIO_SYMLINK	1668	aio_symlink = EIO_SYMLINK
1351	aio_rename = EIO_RENAME	1669	aio_rename = EIO_RENAME
1352	PPCODE:	1670	PPCODE:
1353	{	1671	{
		1672	eio_wd wd2 = 0;
1354	dREQ;	1673	dREQ;
1355		1674
1356	req->type = ix;	1675	req->type = ix;
1357	req->sv1 = newSVsv (oldpath);	1676	req_set_path1 (req, oldpath);
1358	req->ptr1 = SvPVbyte_nolen (req->sv1);	1677	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1359	req->sv2 = newSVsv (newpath);	1678	req->int3 = (long)wd2;
1360	req->ptr2 = SvPVbyte_nolen (req->sv2);
1361		1679
1362	REQ_SEND;	1680	REQ_SEND;
1363	}	1681	}
1364		1682
1365	void	1683	void
		1684	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1685	PPCODE:
		1686	{
		1687	eio_wd wd2 = 0;
		1688	dREQ;
		1689
		1690	req->type = EIO_RENAME;
		1691	req_set_path1 (req, oldpath);
		1692	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1693	req->int2 = flags;
		1694	req->int3 = (long)wd2;
		1695
		1696	REQ_SEND;
		1697	}
		1698
		1699	void
1366	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1700	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1367	PPCODE:	1701	PPCODE:
1368	{	1702	{
1369	dREQ;	1703	dREQ;
1370		1704
1371	req->type = EIO_MKNOD;	1705	req->type = EIO_MKNOD;
1372	req->sv1 = newSVsv (pathname);
1373	req->ptr1 = SvPVbyte_nolen (req->sv1);
1374	req->int2 = (mode_t)mode;	1706	req->int2 = (mode_t)mode;
1375	req->offs = dev;	1707	req->offs = dev;
		1708	req_set_path1 (req, pathname);
1376		1709
1377	REQ_SEND;	1710	REQ_SEND;
1378	}	1711	}
1379		1712
1380	void	1713	void
1381	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1714	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1382	ALIAS:	1715	ALIAS:
1383	aio_mtouch = EIO_MTOUCH	1716	aio_mtouch = EIO_MTOUCH
1384	aio_msync = EIO_MSYNC	1717	aio_msync = EIO_MSYNC
1385	PPCODE:	1718	PPCODE:
1386	{	1719	{
1387	STRLEN svlen;	1720	STRLEN svlen;
1388	char *svptr = SvPVbyte (data, svlen);	1721	char *svptr = SvPVbyte (data, svlen);
1389	UV len = SvUV (length);	1722	UV len = SvUV (length);
		1723
		1724	if (flags < 0)
		1725	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1390		1726
1391	if (offset < 0)	1727	if (offset < 0)
1392	offset += svlen;	1728	offset += svlen;
1393		1729
1394	if (offset < 0 || offset > svlen)	1730	if (offset < 0 || offset > svlen)
…		…
1409	REQ_SEND;	1745	REQ_SEND;
1410	}	1746	}
1411	}	1747	}
1412		1748
1413	void	1749	void
1414	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1750	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1415	PPCODE:	1751	PPCODE:
1416	{	1752	{
1417	STRLEN svlen;	1753	STRLEN svlen;
1418	char *svptr = SvPVbyte (data, svlen);	1754	char *svptr = SvPVbyte (data, svlen);
1419	UV len = SvUV (length);	1755	UV len = SvUV (length);
…		…
1438	REQ_SEND;	1774	REQ_SEND;
1439	}	1775	}
1440	}	1776	}
1441		1777
1442	void	1778	void
1443	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1779	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1444	PPCODE:	1780	PPCODE:
1445	{	1781	{
1446	dREQ;	1782	dREQ;
1447		1783
1448	req->type = EIO_MLOCKALL;	1784	req->type = EIO_MLOCKALL;
…		…
1450		1786
1451	REQ_SEND;	1787	REQ_SEND;
1452	}	1788	}
1453		1789
1454	void	1790	void
		1791	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1792	PPCODE:
		1793	{
		1794	int fd = s_fileno_croak (fh, 0);
		1795	dREQ;
		1796
		1797	req->type = EIO_CUSTOM;
		1798	req->sv1 = newSVsv (fh);
		1799	req->int1 = fd;
		1800
		1801	req->feed = fiemap;
		1802	#if HAVE_FIEMAP
		1803	/* keep our fingers crossed that the next two types are 64 bit */
		1804	req->offs = start;
		1805	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1806	req->int2 = flags;
		1807	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1808	#endif
		1809
		1810	REQ_SEND;
		1811	}
		1812
		1813	void
		1814	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1815	PPCODE:
		1816	{
		1817	char *svptr = 0;
		1818
		1819	sv_clear_foreign (data);
		1820
		1821	if (length) /* known length, directly read into scalar */
		1822	{
		1823	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1824	svptr = sv_grow (data, length);
		1825	else if (SvCUR (data) < length)
		1826	croak ("length outside of scalar, and cannot grow");
		1827	else
		1828	svptr = SvPVbyte_nolen (data);
		1829	}
		1830
		1831	{
		1832	dREQ;
		1833
		1834	req->type = EIO_SLURP;
		1835	req_set_path1 (req, pathname);
		1836	req->offs = offset;
		1837	req->size = length;
		1838	req->sv2 = SvREFCNT_inc (data);
		1839	req->ptr2 = svptr;
		1840
		1841	if (!SvREADONLY (data))
		1842	{
		1843	SvREADONLY_on (data);
		1844	req->flags |= FLAG_SV2_RO_OFF;
		1845	}
		1846
		1847	REQ_SEND;
		1848	}
		1849	}
		1850
		1851	void
1455	aio_busy (double delay, SV *callback=&PL_sv_undef)	1852	aio_busy (double delay, SV *callback = &PL_sv_undef)
1456	PPCODE:	1853	PPCODE:
1457	{	1854	{
1458	dREQ;	1855	dREQ;
1459		1856
1460	req->type = EIO_BUSY;	1857	req->type = EIO_BUSY;
…		…
1462		1859
1463	REQ_SEND;	1860	REQ_SEND;
1464	}	1861	}
1465		1862
1466	void	1863	void
1467	aio_group (SV *callback=&PL_sv_undef)	1864	aio_group (SV *callback = &PL_sv_undef)
1468	PPCODE:	1865	PPCODE:
1469	{	1866	{
1470	dREQ;	1867	dREQ;
1471		1868
1472	req->type = EIO_GROUP;	1869	req->type = EIO_GROUP;
1473		1870
		1871	PUTBACK;
1474	req_submit (req);	1872	req_submit (req);
		1873	SPAGAIN;
		1874
1475	XPUSHs (req_sv (req, aio_grp_stash));	1875	XPUSHs (req_sv (req, aio_grp_stash));
1476	}	1876	}
1477		1877
1478	void	1878	void
1479	aio_nop (SV *callback=&PL_sv_undef)	1879	aio_nop (SV *callback = &PL_sv_undef)
1480	ALIAS:	1880	ALIAS:
1481	aio_nop = EIO_NOP	1881	aio_nop = EIO_NOP
1482	aio_sync = EIO_SYNC	1882	aio_sync = EIO_SYNC
1483	PPCODE:	1883	PPCODE:
1484	{	1884	{
…		…
1488		1888
1489	REQ_SEND;	1889	REQ_SEND;
1490	}	1890	}
1491		1891
1492	int	1892	int
1493	aioreq_pri (int pri = 0)	1893	aioreq_pri (int pri = NO_INIT)
1494	CODE:	1894	CODE:
1495	RETVAL = next_pri;	1895	RETVAL = next_pri;
1496	if (items > 0)	1896	if (items > 0)
1497	{	1897	{
1498	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1898	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1580	CODE:	1980	CODE:
1581	RETVAL = posix_fadvise (fh, offset, length, advice);	1981	RETVAL = posix_fadvise (fh, offset, length, advice);
1582	OUTPUT:	1982	OUTPUT:
1583	RETVAL	1983	RETVAL
1584		1984
1585	ssize_t	1985	IV
1586	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1986	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1587	CODE:	1987	CODE:
1588	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1988	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1589	OUTPUT:	1989	OUTPUT:
1590	RETVAL	1990	RETVAL
1591		1991
1592	void	1992	void
1593	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1993	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1594	PPCODE:	1994	PPCODE:
1595	sv_unmagic (scalar, MMAP_MAGIC);	1995	sv_clear_foreign (scalar);
1596	{	1996	{
1597	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1997	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1598	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1998	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1599	if (addr == (void *)-1)	1999	if (addr == (void *)-1)
1600	XSRETURN_NO;	2000	XSRETURN_NO;
1601		2001
1602	sv_force_normal (scalar);	2002	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1603
1604	/* we store the length in mg_obj, as namlen is I32 :/ */
1605	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1606	->mg_obj = (SV *)length;
1607
1608	SvUPGRADE (scalar, SVt_PV); /* nop... */
1609		2003
1610	if (!(prot & PROT_WRITE))	2004	if (!(prot & PROT_WRITE))
1611	SvREADONLY_on (scalar);	2005	SvREADONLY_on (scalar);
1612		2006
1613	if (SvLEN (scalar))
1614	Safefree (SvPVX (scalar));
1615
1616	SvPVX (scalar) = (char *)addr;
1617	SvCUR_set (scalar, length);
1618	SvLEN_set (scalar, 0);
1619	SvPOK_only (scalar);
1620
1621	XSRETURN_YES;	2007	XSRETURN_YES;
1622	}	2008	}
1623		2009
1624	void	2010	void
1625	munmap (SV *scalar)	2011	munmap (SV *scalar)
1626	CODE:	2012	CODE:
1627	sv_unmagic (scalar, MMAP_MAGIC);	2013	sv_clear_foreign (scalar);
1628		2014
1629	int	2015	int
1630	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2016	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1631	ALIAS:	2017	ALIAS:
1632	mprotect = 1	2018	mprotect = 1
1633	CODE:	2019	CODE:
1634	{	2020	{
1635	STRLEN svlen;	2021	STRLEN svlen;
1636	void *addr = SvPVbyte (scalar, svlen);	2022	void *addr = SvPVbyte (scalar, svlen);
1637	size_t len = SvUV (length);	2023	STRLEN len = SvUV (length);
1638		2024
1639	if (offset < 0)	2025	if (offset < 0)
1640	offset += svlen;	2026	offset += svlen;
1641		2027
1642	if (offset < 0 || offset > svlen)	2028	if (offset < 0 || offset > svlen)
…		…
1656	}	2042	}
1657	OUTPUT:	2043	OUTPUT:
1658	RETVAL	2044	RETVAL
1659		2045
1660	int	2046	int
1661	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2047	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1662	CODE:	2048	CODE:
1663	{	2049	{
1664	STRLEN svlen;	2050	STRLEN svlen;
1665	void *addr = SvPVbyte (scalar, svlen);	2051	void *addr = SvPVbyte (scalar, svlen);
1666	size_t len = SvUV (length);	2052	size_t len = SvUV (length);
1667		2053
1668	if (offset < 0)	2054	if (offset < 0)
1669	offset += svlen;	2055	offset += svlen;
1670		2056
…		…
1677	addr = (void *)(((intptr_t)addr) + offset);	2063	addr = (void *)(((intptr_t)addr) + offset);
1678	eio_page_align (&addr, &len);	2064	eio_page_align (&addr, &len);
1679	#if _POSIX_MEMLOCK_RANGE	2065	#if _POSIX_MEMLOCK_RANGE
1680	RETVAL = munlock (addr, len);	2066	RETVAL = munlock (addr, len);
1681	#else	2067	#else
1682	RETVAL = ((errno = ENOSYS), -1);	2068	RETVAL = EIO_ENOSYS ();
1683	#endif	2069	#endif
1684	}	2070	}
1685	OUTPUT:	2071	OUTPUT:
1686	RETVAL	2072	RETVAL
1687		2073
…		…
1689	munlockall ()	2075	munlockall ()
1690	CODE:	2076	CODE:
1691	#if _POSIX_MEMLOCK	2077	#if _POSIX_MEMLOCK
1692	munlockall ();	2078	munlockall ();
1693	#else	2079	#else
1694	RETVAL = -1;	2080	RETVAL = EIO_ENOSYS ();
1695	errno = ENOSYS;
1696	#endif	2081	#endif
1697	OUTPUT:	2082	OUTPUT:
1698	RETVAL	2083	RETVAL
		2084
		2085	int
		2086	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2087	CODE:
		2088	{
		2089	#if HAVE_LINUX_SPLICE
		2090	loff_t off_in_, off_out_;
		2091	RETVAL = splice (
		2092	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2093	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2094	length, flags
		2095	);
		2096	#else
		2097	RETVAL = EIO_ENOSYS ();
		2098	#endif
		2099	}
		2100	OUTPUT:
		2101	RETVAL
		2102
		2103	int
		2104	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2105	CODE:
		2106	#if HAVE_LINUX_SPLICE
		2107	RETVAL = tee (rfh, wfh, length, flags);
		2108	#else
		2109	RETVAL = EIO_ENOSYS ();
		2110	#endif
		2111	OUTPUT:
		2112	RETVAL
		2113
		2114	int
		2115	pipesize (aio_rfd rfh, int new_size = -1)
		2116	PROTOTYPE: $;$
		2117	CODE:
		2118	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2119	if (new_size >= 0)
		2120	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2121	else
		2122	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2123	#else
		2124	errno = ENOSYS;
		2125	RETVAL = -1;
		2126	#endif
		2127	OUTPUT:
		2128	RETVAL
		2129
		2130	void
		2131	pipe2 (int flags = 0)
		2132	PROTOTYPE: ;$
		2133	PPCODE:
		2134	{
		2135	int fd[2];
		2136	int res;
		2137
		2138	if (flags)
		2139	#if HAVE_PIPE2
		2140	res = pipe2 (fd, flags);
		2141	#else
		2142	res = (errno = ENOSYS, -1);
		2143	#endif
		2144	else
		2145	res = pipe (fd);
		2146
		2147	if (!res)
		2148	{
		2149	EXTEND (SP, 2);
		2150	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2151	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2152	}
		2153	}
		2154
		2155	UV
		2156	get_fdlimit ()
		2157	CODE:
		2158	#if HAVE_RLIMITS
		2159	struct rlimit rl;
		2160	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2161	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2162	#endif
		2163	XSRETURN_UNDEF;
		2164	OUTPUT:
		2165	RETVAL
		2166
		2167	void
		2168	min_fdlimit (UV limit = 0x7fffffffU)
		2169	CODE:
		2170	{
		2171	#if HAVE_RLIMITS
		2172	struct rlimit rl;
		2173	rlim_t orig_rlim_max;
		2174	UV bit;
		2175
		2176	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2177	goto fail;
		2178
		2179	if (rl.rlim_cur == RLIM_INFINITY)
		2180	XSRETURN_YES;
		2181
		2182	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2183
		2184	if (rl.rlim_cur < limit)
		2185	{
		2186	rl.rlim_cur = limit;
		2187
		2188	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2189	rl.rlim_max = rl.rlim_cur;
		2190	}
		2191
		2192	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2193	XSRETURN_YES;
		2194
		2195	if (errno == EPERM)
		2196	{
		2197	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2198	/* our limit overflows a system-wide limit */
		2199	/* try an adaptive algorithm, but do not lower the hardlimit */
		2200	rl.rlim_max = 0;
		2201	for (bit = 0x40000000U; bit; bit >>= 1)
		2202	{
		2203	rl.rlim_max |= bit;
		2204	rl.rlim_cur = rl.rlim_max;
		2205
		2206	/* nevr decrease the hard limit */
		2207	if (rl.rlim_max < orig_rlim_max)
		2208	break;
		2209
		2210	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2211	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2212	}
		2213
		2214	/* now, raise the soft limit to the max permitted */
		2215	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2216	{
		2217	rl.rlim_cur = rl.rlim_max;
		2218	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2219	errno = EPERM;
		2220	}
		2221	}
		2222	#endif
		2223	fail:
		2224	XSRETURN_UNDEF;
		2225	}
1699		2226
1700	void _on_next_submit (SV *cb)	2227	void _on_next_submit (SV *cb)
1701	CODE:	2228	CODE:
1702	SvREFCNT_dec (on_next_submit);	2229	SvREFCNT_dec (on_next_submit);
1703	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2230	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1704		2231
1705	PROTOTYPES: DISABLE	2232	PROTOTYPES: DISABLE
1706		2233
		2234	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2235
		2236	BOOT:
		2237	{
		2238	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2239	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2240	}
		2241
		2242	void
		2243	DESTROY (SV *self)
		2244	CODE:
		2245	{
		2246	aio_wd wd = SvAIO_WD (self);
		2247	#if HAVE_AT
		2248	{
		2249	SV *callback = &PL_sv_undef;
		2250	dREQ; /* clobbers next_pri :/ */
		2251	next_pri = req->pri; /* restore next_pri */
		2252	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2253	req->type = EIO_WD_CLOSE;
		2254	req->wd = wd;
		2255	REQ_SEND;
		2256	}
		2257	#else
		2258	eio_wd_close_sync (wd);
		2259	#endif
		2260	}
		2261
1707	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2262	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1708		2263
1709	void	2264	void
1710	cancel (aio_req_ornot req)	2265	cancel (aio_req_ornot req)
1711	CODE:	2266	CODE:
1712	eio_cancel (req);	2267	eio_cancel (req);
1713		2268
1714	void	2269	void
1715	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2270	cb (aio_req_ornot req, SV *callback = NO_INIT)
1716	PPCODE:	2271	PPCODE:
1717	{	2272	{
1718	if (GIMME_V != G_VOID)	2273	if (GIMME_V != G_VOID)
1719	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2274	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1720		2275
1721	if (items > 1)	2276	if (items > 1)
1722	{	2277	{
1723	SV *cb_cv =get_cb (callback);	2278	SV *cb_cv = get_cb (callback);
1724		2279
1725	SvREFCNT_dec (req->callback);	2280	SvREFCNT_dec (req->callback);
1726	req->callback = SvREFCNT_inc (cb_cv);	2281	req->callback = SvREFCNT_inc (cb_cv);
1727	}	2282	}
1728	}	2283	}
…		…
1785	limit (aio_req grp, int limit)	2340	limit (aio_req grp, int limit)
1786	CODE:	2341	CODE:
1787	eio_grp_limit (grp, limit);	2342	eio_grp_limit (grp, limit);
1788		2343
1789	void	2344	void
1790	feed (aio_req grp, SV *callback=&PL_sv_undef)	2345	feed (aio_req grp, SV *callback = &PL_sv_undef)
1791	CODE:	2346	CODE:
1792	{	2347	{
1793	SvREFCNT_dec (grp->sv2);	2348	SvREFCNT_dec (grp->sv2);
1794	grp->sv2 = newSVsv (callback);	2349	grp->sv2 = newSVsv (callback);
1795	grp->feed = aio_grp_feed;	2350	grp->feed = aio_grp_feed;

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