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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.171 by root, Wed Aug 4 17:16:19 2010 UTC vs.
Revision 1.253 by root, Tue Feb 20 04:32:59 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_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22	# include <sys/mman.h>	21	# include <sys/mman.h>
		22	#endif
		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
23	#endif	36	#endif
24		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_EVENTFD
		112	# include <sys/eventfd.h>
		113	#endif
		114
		115	#if HAVE_RLIMITS
		116	#include <sys/time.h>
		117	#include <sys/resource.h>
		118	#endif
		119
109	typedef SV SV8; /* byte-sv, used for argument-checking */	120	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	121	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	122	typedef int aio_wfd; /* write file descriptor */
112		123
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	124	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		125
115	#define EIO_REQ_MEMBERS \	126	#define EIO_REQ_MEMBERS \
116	SV *callback; \	127	SV *callback; \
117	SV *sv1, *sv2; \	128	SV *sv1, *sv2; \
		129	SV *sv3, *sv4; \
118	STRLEN stroffset; \	130	STRLEN stroffset; \
119	SV *self;	131	SV *self;
120		132
121	#define EIO_NO_WRAPPERS 1	133	#define EIO_NO_WRAPPERS 1
122		134
123	#include "libeio/eio.h"	135	#include "libeio/eio.h"
124		136
125	#ifndef POSIX_FADV_NORMAL	137	static int req_invoke (eio_req *req);
126	# define POSIX_FADV_NORMAL 0	138	#define EIO_FINISH(req) req_invoke (req)
127	# define NO_FADVISE 1	139	static void req_destroy (eio_req *grp);
128	#endif	140	#define EIO_DESTROY(req) req_destroy (req)
129	#ifndef POSIX_FADV_SEQUENTIAL
130	# define POSIX_FADV_SEQUENTIAL 0
131	#endif
132	#ifndef POSIX_FADV_RANDOM
133	# define POSIX_FADV_RANDOM 0
134	#endif
135	#ifndef POSIX_FADV_NOREUSE
136	# define POSIX_FADV_NOREUSE 0
137	#endif
138	#ifndef POSIX_FADV_WILLNEED
139	# define POSIX_FADV_WILLNEED 0
140	#endif
141	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0
143	#endif
144		141
145	#if _XOPEN_SOURCE < 600 || NO_FADVISE	142	#include "libeio/eio.c"
		143
		144	#if !HAVE_POSIX_FADVISE
146	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	145	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
147	#endif	146	#endif
148		147
149	#ifndef POSIX_MADV_NORMAL	148	#if !HAVE_POSIX_MADVISE
150	# define POSIX_MADV_NORMAL 0
151	# define NO_MADVISE 1
152	#endif
153	#ifndef POSIX_MADV_SEQUENTIAL
154	# define POSIX_MADV_SEQUENTIAL 0
155	#endif
156	#ifndef POSIX_MADV_RANDOM
157	# define POSIX_MADV_RANDOM 0
158	#endif
159	#ifndef POSIX_MADV_WILLNEED
160	# define POSIX_MADV_WILLNEED 0
161	#endif
162	#ifndef POSIX_MADV_DONTNEED
163	# define POSIX_MADV_DONTNEED 0
164	#endif
165
166	#if _XOPEN_SOURCE < 600 || NO_MADVISE
167	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	149	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
168	#endif
169
170	#ifndef PROT_NONE
171	# define PROT_NONE 0
172	#endif
173	#ifndef PROT_READ
174	# define PROT_READ 0
175	#endif
176	#ifndef PROT_WRITE
177	# define PROT_READ 0
178	#endif
179	#ifndef PROT_EXEC
180	# define PROT_EXEC 0
181	#endif
182
183	#ifndef ST_NODEV
184	# define ST_NODEV 0
185	#endif
186	#ifndef ST_NOEXEC
187	# define ST_NOEXEC 0
188	#endif
189	#ifndef ST_SYNCHRONOUS
190	# define ST_SYNCHRONOUS 0
191	#endif
192	#ifndef ST_MANDLOCK
193	# define ST_MANDLOCK 0
194	#endif
195	#ifndef ST_WRITE
196	# define ST_WRITE 0
197	#endif
198	#ifndef ST_APPEND
199	# define ST_APPEND 0
200	#endif
201	#ifndef ST_IMMUTABLE
202	# define ST_IMMUTABLE 0
203	#endif
204	#ifndef ST_NOATIME
205	# define ST_NOATIME 0
206	#endif
207	#ifndef ST_NODIRATIME
208	# define ST_NODIRATIME 0
209	#endif
210	#ifndef ST_RELATIME
211	# define ST_RELATIME 0
212	#endif
213
214	#ifndef MCL_CURRENT
215	# define MCL_CURRENT 0
216	#endif
217	#ifndef MCL_FUTURE
218	# define MCL_FUTURE 0
219	#endif	150	#endif
220		151
221	#ifndef MAP_ANONYMOUS	152	#ifndef MAP_ANONYMOUS
222	# ifdef MAP_ANON	153	# ifdef MAP_ANON
223	# define MAP_ANONYMOUS MAP_ANON	154	# define MAP_ANONYMOUS MAP_ANON
224	# else	155	# else
225	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	156	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
226	# endif	157	# endif
227	#endif	158	#endif
228	#ifndef MAP_HUGETLB
229	# define MAP_HUGETLB 0
230	#endif
231	#ifndef MAP_LOCKED
232	# define MAP_LOCKED 0
233	#endif
234	#ifndef MAP_NORESERVE
235	# define MAP_NORESERVE 0
236	#endif
237	#ifndef MAP_POPULATE
238	# define MAP_POPULATE 0
239	#endif
240	#ifndef MAP_NONBLOCK
241	# define MAP_NONBLOCK 0
242	#endif
243		159
244	#ifndef PAGESIZE	160	/* defines all sorts of constants to 0 unless they are already defined */
		161	/* also provides const_iv_ and const_niv_ macros for them */
		162	#include "def0.h"
		163
		164	#ifndef makedev
		165	# define makedev(maj,min) (((maj) << 8) | (min))
		166	#endif
		167	#ifndef major
		168	# define major(dev) ((dev) >> 8)
		169	#endif
		170	#ifndef minor
		171	# define minor(dev) ((dev) & 0xff)
		172	#endif
		173
		174	#if PAGESIZE <= 0
245	# define PAGESIZE sysconf (_SC_PAGESIZE)	175	# define PAGESIZE sysconf (_SC_PAGESIZE)
246	#endif	176	#endif
247		177
248	static int req_invoke (eio_req *req);	178	/*****************************************************************************/
249	#define EIO_FINISH(req) req_invoke (req)	179
250	static void req_destroy (eio_req *grp);	180	#if !_POSIX_MAPPED_FILES
251	#define EIO_DESTROY(req) req_destroy (req)	181	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		182	# define munmap(addr,length) EIO_ENOSYS ()
		183	#endif
		184
		185	#if !_POSIX_MEMORY_PROTECTION
		186	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		187	#endif
		188
		189	#define FOREIGN_MAGIC PERL_MAGIC_ext
		190
		191	static int ecb_cold
		192	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		193	{
		194	int old_errno = errno;
		195	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		196	errno = old_errno;
		197
		198	mg->mg_obj = 0; /* just in case */
		199
		200	SvREADONLY_off (sv);
		201
		202	if (SvPVX (sv) != mg->mg_ptr)
		203	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		204
		205	SvCUR_set (sv, 0);
		206	SvPVX (sv) = 0;
		207	SvOK_off (sv);
		208
		209	return 0;
		210	}
		211
		212	static MGVTBL mmap_vtbl = {
		213	0, 0, 0, 0, mmap_free
		214	};
		215
		216	static int ecb_cold
		217	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		218	{
		219	free (mg->mg_ptr);
		220	mg->mg_obj = 0; /* just in case */
		221
		222	SvREADONLY_off (sv);
		223
		224	if (SvPVX (sv) != mg->mg_ptr)
		225	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		226
		227	SvCUR_set (sv, 0);
		228	SvPVX (sv) = 0;
		229	SvOK_off (sv);
		230
		231	return 0;
		232	}
		233
		234	static MGVTBL sysfree_vtbl = {
		235	0, 0, 0, 0, sysfree_free
		236	};
		237
		238	/*****************************************************************************/
		239
		240	/* helper: set scalar to foreign ptr with custom free */
		241	static void
		242	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		243	{
		244	sv_force_normal (sv);
		245
		246	/* we store the length in mg_obj, as namlen is I32 :/ */
		247	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		248	->mg_obj = (SV *)length;
		249
		250	SvUPGRADE (sv, SVt_PV); /* nop... */
		251
		252	if (SvLEN (sv))
		253	Safefree (SvPVX (sv));
		254
		255	SvPVX (sv) = (char *)addr;
		256	SvCUR_set (sv, length);
		257	SvLEN_set (sv, 0);
		258	SvPOK_only (sv);
		259	}
		260
		261	static void
		262	sv_clear_foreign (SV *sv)
		263	{
		264	/* todo: iterate over magic and only free ours, but of course */
		265	/* the perl5porters will call that (correct) behaviour buggy */
		266	sv_unmagic (sv, FOREIGN_MAGIC);
		267	}
		268
		269	/*****************************************************************************/
		270
		271	static void
		272	fiemap (eio_req *req)
		273	{
		274	req->result = -1;
		275
		276	#if HAVE_FIEMAP
		277	/* assume some c99 */
		278	struct fiemap *fiemap = 0;
		279	size_t end_offset;
		280	int count = req->int3;
		281
		282	req->flags |= EIO_FLAG_PTR1_FREE;
		283
		284	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		285	/* increase in 3.5kb steps */
		286	if (count < 0)
		287	count = 8;
		288
		289	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		290	errno = ENOMEM;
		291	if (!fiemap)
		292	return;
		293
		294	req->ptr1 = fiemap;
		295
		296	fiemap->fm_start = req->offs;
		297	fiemap->fm_length = req->size;
		298	fiemap->fm_flags = req->int2;
		299	fiemap->fm_extent_count = count;
		300
		301	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		302	return;
		303
		304	if (req->int3 >= 0 /* not autosizing */
		305	|| !fiemap->fm_mapped_extents /* no more extents */
		306	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		307	goto done;
		308
		309	/* else we have to loop -
		310	* it would be tempting (actually I tried that first) to just query the
		311	* number of extents needed, but linux often feels like not returning all
		312	* extents, without telling us it left any out. this complicates
		313	* this quite a bit.
		314	*/
		315
		316	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		317
		318	for (;;)
		319	{
		320	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		321	char scratch[3072];
		322	struct fiemap *incmap = (struct fiemap *)scratch;
		323
		324	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		325	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		326	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		327	incmap->fm_flags = fiemap->fm_flags;
		328	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		329
		330	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		331	return;
		332
		333	if (!incmap->fm_mapped_extents)
		334	goto done;
		335
		336	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		337	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		338	errno = ENOMEM;
		339	if (!fiemap)
		340	return;
		341
		342	req->ptr1 = fiemap;
		343
		344	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		345	{
		346	struct fiemap_extent *e = incmap->fm_extents + count;
		347
		348	if (e->fe_logical + e->fe_length >= end_offset)
		349	goto done;
		350
		351	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		352
		353	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		354	goto done;
		355
		356	}
		357	}
		358
		359	done:
		360	req->result = 0;
		361
		362	#else
		363	errno = ENOSYS;
		364	#endif
		365	}
		366
		367	/*****************************************************************************/
252		368
253	enum {	369	enum {
254	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	370	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
255	};	371	};
256		372
257	#include "libeio/eio.c"
258
259	typedef eio_req *aio_req;	373	typedef eio_req *aio_req;
260	typedef eio_req *aio_req_ornot;	374	typedef eio_req *aio_req_ornot;
		375	typedef eio_wd aio_wd;
261		376
262	static SV *on_next_submit;	377	static SV *on_next_submit;
263	static int next_pri = EIO_PRI_DEFAULT;	378	static int next_pri = EIO_PRI_DEFAULT;
264	static int max_outstanding;	379	static int max_outstanding;
265		380
266	static s_epipe respipe;	381	static s_epipe respipe;
267		382
268	static void req_destroy (aio_req req);	383	static void req_destroy (aio_req req);
269	static void req_cancel (aio_req req);	384	static void req_cancel (aio_req req);
270		385
271	static void want_poll (void)	386	static void
		387	want_poll (void)
272	{	388	{
273	/* write a dummy byte to the pipe so fh becomes ready */	389	/* write a dummy byte to the pipe so fh becomes ready */
274	s_epipe_signal (&respipe);	390	s_epipe_signal (&respipe);
275	}	391	}
276		392
277	static void done_poll (void)	393	static void
		394	done_poll (void)
278	{	395	{
279	/* read any signals sent by the worker threads */	396	/* read any signals sent by the worker threads */
280	s_epipe_drain (&respipe);	397	s_epipe_drain (&respipe);
281	}	398	}
282		399
283	/* must be called at most once */	400	/* must be called at most once */
		401	static SV *
284	static SV *req_sv (aio_req req, HV *stash)	402	req_sv (aio_req req, HV *stash)
285	{	403	{
286	if (!req->self)	404	if (!req->self)
287	{	405	{
288	req->self = (SV *)newHV ();	406	req->self = (SV *)newHV ();
289	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	407	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
290	}	408	}
291		409
292	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	410	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
293	}	411	}
294		412
295	static aio_req SvAIO_REQ (SV *sv)	413	static SV *
		414	newSVaio_wd (aio_wd wd)
		415	{
		416	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		417	}
		418
		419	static aio_req
		420	SvAIO_REQ (SV *sv)
296	{	421	{
297	MAGIC *mg;	422	MAGIC *mg;
298		423
299	if (!SvROK (sv)	424	if (!SvROK (sv)
		425	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
300	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	426	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
301	&& SvSTASH (SvRV (sv)) != aio_req_stash	427	&& SvSTASH (SvRV (sv)) != aio_req_stash
302	&& !sv_derived_from (sv, "IO::AIO::REQ")))	428	&& !sv_derived_from (sv, "IO::AIO::REQ")))
303	croak ("object of class IO::AIO::REQ expected");	429	croak ("object of class IO::AIO::REQ expected");
304		430
305	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	431	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
306		432
307	return mg ? (aio_req)mg->mg_ptr : 0;	433	return mg ? (aio_req)mg->mg_ptr : 0;
308	}	434	}
309		435
		436	static aio_wd
		437	SvAIO_WD (SV *sv)
		438	{
		439	if (!SvROK (sv)
		440	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		441	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		442	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		443
		444	return (aio_wd)(long)SvIVX (SvRV (sv));
		445	}
		446
		447	static SV *
		448	newmortalFH (int fd, int flags)
		449	{
		450	if (fd < 0)
		451	return &PL_sv_undef;
		452
		453	GV *gv = (GV *)sv_newmortal ();
		454	char sym[64];
		455	int symlen;
		456
		457	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		458	gv_init (gv, aio_stash, sym, symlen, 0);
		459
		460	symlen = snprintf (
		461	sym,
		462	sizeof (sym),
		463	"%s&=%d",
		464	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		465	fd
		466	);
		467
		468	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		469	? (SV *)gv : &PL_sv_undef;
		470	}
		471
		472	static void
310	static void aio_grp_feed (aio_req grp)	473	aio_grp_feed (aio_req grp)
311	{	474	{
312	if (grp->sv2 && SvOK (grp->sv2))	475	if (grp->sv2 && SvOK (grp->sv2))
313	{	476	{
314	dSP;	477	dSP;
315		478
…		…
323	FREETMPS;	486	FREETMPS;
324	LEAVE;	487	LEAVE;
325	}	488	}
326	}	489	}
327		490
		491	static void
328	static void req_submit (eio_req *req)	492	req_submit (eio_req *req)
329	{	493	{
330	eio_submit (req);	494	eio_submit (req);
331		495
332	if (expect_false (on_next_submit))	496	if (expect_false (on_next_submit))
333	{	497	{
…		…
340	PUTBACK;	504	PUTBACK;
341	call_sv (cb, G_DISCARD | G_EVAL);	505	call_sv (cb, G_DISCARD | G_EVAL);
342	}	506	}
343	}	507	}
344		508
		509	static int
345	static int req_invoke (eio_req *req)	510	req_invoke (eio_req *req)
346	{	511	{
347	if (req->flags & FLAG_SV2_RO_OFF)	512	if (req->flags & FLAG_SV2_RO_OFF)
348	SvREADONLY_off (req->sv2);	513	SvREADONLY_off (req->sv2);
349		514
350	if (!EIO_CANCELLED (req) && req->callback)	515	if (!EIO_CANCELLED (req) && req->callback)
…		…
361	/* do not recreate the result IV from scratch each time */	526	/* do not recreate the result IV from scratch each time */
362	if (expect_true (sv_result_cache))	527	if (expect_true (sv_result_cache))
363	{	528	{
364	sv_result = sv_result_cache; sv_result_cache = 0;	529	sv_result = sv_result_cache; sv_result_cache = 0;
365	SvIV_set (sv_result, req->result);	530	SvIV_set (sv_result, req->result);
		531	SvIOK_only (sv_result);
366	}	532	}
367	else	533	else
368	{	534	{
369	sv_result = newSViv (req->result);	535	sv_result = newSViv (req->result);
370	SvREADONLY_on (sv_result);	536	SvREADONLY_on (sv_result);
371	}	537	}
372		538
373	switch (req->type)	539	switch (req->type)
374	{	540	{
		541	case EIO_WD_OPEN:
		542	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		543	break;
		544
375	case EIO_READDIR:	545	case EIO_READDIR:
376	{	546	{
377	SV *rv = &PL_sv_undef;	547	SV *rv = &PL_sv_undef;
378		548
379	if (req->result >= 0)	549	if (req->result >= 0)
…		…
432	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	602	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
433	}	603	}
434	break;	604	break;
435		605
436	case EIO_OPEN:	606	case EIO_OPEN:
437	{	607	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
438	/* convert fd to fh */
439	SV *fh = &PL_sv_undef;
440
441	if (req->result >= 0)
442	{
443	GV *gv = (GV *)sv_newmortal ();
444	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
445	char sym [64];
446	int symlen;
447
448	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
449	gv_init (gv, aio_stash, sym, symlen, 0);
450
451	symlen = snprintf (
452	sym,
453	sizeof (sym),
454	"%s&=%d",
455	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
456	(int)req->result
457	);
458
459	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
460	fh = (SV *)gv;
461	}
462
463	PUSHs (fh);
464	}
465	break;	608	break;
466		609
467	case EIO_STATVFS:	610	case EIO_STATVFS:
468	case EIO_FSTATVFS:	611	case EIO_FSTATVFS:
469	{	612	{
470	SV *rv = &PL_sv_undef;	613	SV *rv = &PL_sv_undef;
471		614
		615	#ifndef _WIN32
472	if (req->result >= 0)	616	if (req->result >= 0)
473	{	617	{
474	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	618	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
475	HV *hv = newHV ();	619	HV *hv = newHV ();
		620	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		621	* chooses to make it a struct.
		622	*/
		623	unsigned long fsid = 0;
		624	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
476		625
477	rv = sv_2mortal (newRV_noinc ((SV *)hv));	626	rv = sv_2mortal (newRV_noinc ((SV *)hv));
478		627
479	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	628	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
480	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	629	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
482	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	631	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
483	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	632	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
484	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	633	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
485	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	634	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
486	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	635	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
487	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	636	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
488	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	637	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
489	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	638	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
490	}	639	}
		640	#endif
491		641
492	PUSHs (rv);	642	PUSHs (rv);
493	}	643	}
494		644
495	break;	645	break;
…		…
511	case EIO_NOP:	661	case EIO_NOP:
512	case EIO_BUSY:	662	case EIO_BUSY:
513	break;	663	break;
514		664
515	case EIO_READLINK:	665	case EIO_READLINK:
		666	case EIO_REALPATH:
516	if (req->result > 0)	667	if (req->result > 0)
517	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	668	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
518	break;	669	break;
519		670
520	case EIO_STAT:	671	case EIO_STAT:
521	case EIO_LSTAT:	672	case EIO_LSTAT:
522	case EIO_FSTAT:	673	case EIO_FSTAT:
523	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	674	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		675
524	PL_laststatval = req->result;	676	if (!(PL_laststatval = req->result))
		677	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
525	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	678	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		679
526	PUSHs (sv_result);	680	PUSHs (sv_result);
		681	break;
		682
		683	case EIO_SEEK:
		684	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
527	break;	685	break;
528		686
529	case EIO_READ:	687	case EIO_READ:
530	{	688	{
531	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	689	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
534	SvSETMAGIC (req->sv2);	692	SvSETMAGIC (req->sv2);
535	PUSHs (sv_result);	693	PUSHs (sv_result);
536	}	694	}
537	break;	695	break;
538		696
		697	case EIO_SLURP:
		698	{
		699	if (req->result >= 0)
		700	{
		701	/* if length was originally not known, we steal the malloc'ed memory */
		702	if (req->flags & EIO_FLAG_PTR2_FREE)
		703	{
		704	req->flags &= ~EIO_FLAG_PTR2_FREE;
		705	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		706	}
		707	else
		708	{
		709	SvCUR_set (req->sv2, req->result);
		710	*SvEND (req->sv2) = 0;
		711	SvPOK_only (req->sv2);
		712	}
		713
		714	SvSETMAGIC (req->sv2);
		715	}
		716
		717	PUSHs (sv_result);
		718	}
		719	break;
		720
		721	case EIO_CUSTOM:
		722	if (req->feed == fiemap)
		723	{
		724	#if HAVE_FIEMAP
		725	if (!req->result)
		726	{
		727	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		728
		729	if (fiemap->fm_extent_count)
		730	{
		731	AV *av = newAV ();
		732	int i;
		733
		734	while (fiemap->fm_mapped_extents)
		735	{
		736	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		737	AV *ext_av = newAV ();
		738
		739	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		740	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		741	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		742	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		743
		744	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		745	}
		746
		747	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		748	}
		749	else
		750	{
		751	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		752	PUSHs (sv_result);
		753	}
		754	}
		755	#endif
		756	}
		757	else
		758	PUSHs (sv_result);
		759	break;
		760
539	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */	761	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
540	if (req->result > 0)	762	if (req->result > 0)
541	SvIV_set (sv_result, 0);	763	SvIV_set (sv_result, 0);
542	/* FALLTHROUGH */	764	/* FALLTHROUGH */
543		765
544	default:	766	default:
…		…
564	}	786	}
565		787
566	return !!SvTRUE (ERRSV);	788	return !!SvTRUE (ERRSV);
567	}	789	}
568		790
		791	static void
569	static void req_destroy (aio_req req)	792	req_destroy (aio_req req)
570	{	793	{
571	if (req->self)	794	if (req->self)
572	{	795	{
573	sv_unmagic (req->self, PERL_MAGIC_ext);	796	sv_unmagic (req->self, PERL_MAGIC_ext);
574	SvREFCNT_dec (req->self);	797	SvREFCNT_dec (req->self);
575	}	798	}
576		799
577	SvREFCNT_dec (req->sv1);	800	SvREFCNT_dec (req->sv1);
578	SvREFCNT_dec (req->sv2);	801	SvREFCNT_dec (req->sv2);
		802	SvREFCNT_dec (req->sv3);
		803	SvREFCNT_dec (req->sv4);
579	SvREFCNT_dec (req->callback);	804	SvREFCNT_dec (req->callback);
580		805
581	Safefree (req);	806	free (req);
582	}	807	}
583		808
		809	static void
584	static void req_cancel_subs (aio_req grp)	810	req_cancel_subs (aio_req grp)
585	{	811	{
586	aio_req sub;
587
588	if (grp->type != EIO_GROUP)	812	if (grp->type != EIO_GROUP)
589	return;	813	return;
590		814
591	SvREFCNT_dec (grp->sv2);	815	SvREFCNT_dec (grp->sv2);
592	grp->sv2 = 0;	816	grp->sv2 = 0;
593		817
594	eio_grp_cancel (grp);	818	eio_grp_cancel (grp);
595	}	819	}
596		820
597	static void	821	static void ecb_cold
598	create_respipe (void)	822	create_respipe (void)
599	{	823	{
600	if (s_epipe_renew (&respipe))	824	if (s_epipe_renew (&respipe))
601	croak ("IO::AIO: unable to initialize result pipe");	825	croak ("IO::AIO: unable to initialize result pipe");
602	}	826	}
603		827
604	static void poll_wait (void)	828	static void
		829	poll_wait (void)
605	{	830	{
606	while (eio_nreqs ())	831	while (eio_nreqs ())
607	{	832	{
608	int size;	833	int size;
609		834
610	X_LOCK (reslock);	835	X_LOCK (EIO_POOL->reslock);
611	size = res_queue.size;	836	size = EIO_POOL->res_queue.size;
612	X_UNLOCK (reslock);	837	X_UNLOCK (EIO_POOL->reslock);
613		838
614	if (size)	839	if (size)
615	return;	840	return;
616		841
617	etp_maybe_start_thread ();	842	etp_maybe_start_thread (EIO_POOL);
618		843
619	s_epipe_wait (&respipe);	844	s_epipe_wait (&respipe);
620	}	845	}
621	}	846	}
622		847
623	static int poll_cb (void)	848	static int
		849	poll_cb (void)
624	{	850	{
625	for (;;)	851	for (;;)
626	{	852	{
627	int res = eio_poll ();	853	int res = eio_poll ();
628		854
…		…
634		860
635	poll_wait ();	861	poll_wait ();
636	}	862	}
637	}	863	}
638		864
639	static void atfork_child (void)	865	static void ecb_cold
		866	reinit (void)
640	{	867	{
641	create_respipe ();	868	create_respipe ();
642	}
643		869
644	/*****************************************************************************/	870	if (eio_init (want_poll, done_poll) < 0)
645		871	croak ("IO::AIO: unable to initialise eio library");
646	#if !_POSIX_MAPPED_FILES
647	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
648	# define munmap(addr,length) (errno = ENOSYS, -1)
649	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
650	#endif
651
652	#define MMAP_MAGIC PERL_MAGIC_ext
653
654	static int
655	mmap_free (pTHX_ SV *sv, MAGIC *mg)
656	{
657	int old_errno = errno;
658	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
659	errno = old_errno;
660
661	mg->mg_obj = 0; /* just in case */
662
663	SvREADONLY_off (sv);
664
665	if (SvPVX (sv) != mg->mg_ptr)
666	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
667
668	SvCUR_set (sv, 0);
669	SvPVX (sv) = 0;
670	SvOK_off (sv);
671
672	return 0;
673	}	872	}
674
675	static MGVTBL mmap_vtbl = {
676	0, 0, 0, 0, mmap_free
677	};
678		873
679	/*****************************************************************************/	874	/*****************************************************************************/
680		875
681	static SV *	876	static SV *
682	get_cb (SV *cb_sv)	877	get_cb (SV *cb_sv)
683	{	878	{
684	SvGETMAGIC (cb_sv);	879	SvGETMAGIC (cb_sv);
685	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	880	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
686	}	881	}
687		882
		883	static aio_req ecb_noinline
		884	dreq (SV *callback)
		885	{
		886	SV *cb_cv;
		887	aio_req req;
		888	int req_pri = next_pri;
		889	next_pri = EIO_PRI_DEFAULT;
		890
		891	cb_cv = get_cb (callback);
		892
		893	req = calloc (sizeof (*req), 1);
		894	if (!req)
		895	croak ("out of memory during eio_req allocation");
		896
		897	req->callback = SvREFCNT_inc (cb_cv);
		898	req->pri = req_pri;
		899
		900	return req;
		901	}
		902
688	#define dREQ \	903	#define dREQ \
689	SV *cb_cv; \	904	aio_req req = dreq (callback); \
690	aio_req req; \
691	int req_pri = next_pri; \
692	next_pri = EIO_PRI_DEFAULT; \
693	\
694	cb_cv = get_cb (callback); \
695	\
696	Newz (0, req, 1, eio_req); \
697	if (!req) \
698	croak ("out of memory during eio_req allocation"); \
699	\
700	req->callback = SvREFCNT_inc (cb_cv); \
701	req->pri = req_pri
702		905
703	#define REQ_SEND \	906	#define REQ_SEND \
704	PUTBACK; \	907	PUTBACK; \
705	req_submit (req); \	908	req_submit (req); \
706	SPAGAIN; \	909	SPAGAIN; \
707	\	910	\
708	if (GIMME_V != G_VOID) \	911	if (GIMME_V != G_VOID) \
709	XPUSHs (req_sv (req, aio_req_stash));	912	XPUSHs (req_sv (req, aio_req_stash));
710		913
		914	ecb_inline void
		915	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		916	{
		917	if (expect_false (SvROK (path)))
		918	{
		919	SV *rv = SvRV (path);
		920	SV *wdob;
		921
		922	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		923	{
		924	path = AvARRAY (rv)[1];
		925	wdob = AvARRAY (rv)[0];
		926
		927	if (SvOK (wdob))
		928	{
		929	*wd = SvAIO_WD (wdob);
		930	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		931	}
		932	else
		933	*wd = EIO_INVALID_WD;
		934	}
		935	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		936	{
		937	*wd = (aio_wd)(long)SvIVX (rv);
		938	*wdsv = SvREFCNT_inc_NN (rv);
		939	*ptr = ".";
		940	return; /* path set to "." */
		941	}
		942	else
		943	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		944	}
		945
		946	*pathsv = newSVsv (path);
		947	*ptr = SvPVbyte_nolen (*pathsv);
		948	}
		949
		950	static void ecb_noinline
		951	req_set_path1 (aio_req req, SV *path)
		952	{
		953	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		954	}
		955
		956	static void ecb_noinline
		957	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		958	{
		959	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		960
		961	switch (SvTYPE (rv))
		962	{
		963	case SVt_PVIO:
		964	case SVt_PVLV:
		965	case SVt_PVGV:
		966	req->type = type_fh;
		967	req->sv1 = newSVsv (fh_or_path);
		968	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		969	break;
		970
		971	default:
		972	req->type = type_path;
		973	req_set_path1 (req, fh_or_path);
		974	break;
		975	}
		976	}
		977
		978	XS(boot_IO__AIO) ecb_cold;
		979
711	MODULE = IO::AIO PACKAGE = IO::AIO	980	MODULE = IO::AIO PACKAGE = IO::AIO
712		981
713	PROTOTYPES: ENABLE	982	PROTOTYPES: ENABLE
714		983
715	BOOT:	984	BOOT:
…		…
719	IV iv;	988	IV iv;
720	} *civ, const_iv[] = {	989	} *civ, const_iv[] = {
721	# define const_niv(name, value) { # name, (IV) value },	990	# define const_niv(name, value) { # name, (IV) value },
722	# define const_iv(name) { # name, (IV) name },	991	# define const_iv(name) { # name, (IV) name },
723	# define const_eio(name) { # name, (IV) EIO_ ## name },	992	# define const_eio(name) { # name, (IV) EIO_ ## name },
		993
		994	/* you have to re-run ./gendef0 after adding/removing any constants here */
		995	/* the first block can be undef if missing */
		996	const_iv (ENOSYS)
724	const_iv (EXDEV)	997	const_iv (EXDEV)
725	const_iv (ENOSYS)	998	const_iv (EBADR)
		999
		1000	/* for lseek */
		1001	const_iv (SEEK_DATA)
		1002	const_iv (SEEK_HOLE)
		1003
		1004	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1005	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1006	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1007	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1008	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1009	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1010
		1011	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1012	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1013	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1014	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1015	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1016
		1017	/* the second block will be 0 when missing */
726	const_iv (O_RDONLY)	1018	const_iv (O_RDONLY)
727	const_iv (O_WRONLY)	1019	const_iv (O_WRONLY)
728	const_iv (O_RDWR)	1020	const_iv (O_RDWR)
729	const_iv (O_CREAT)	1021	const_iv (O_CREAT)
730	const_iv (O_TRUNC)	1022	const_iv (O_TRUNC)
731	const_iv (O_EXCL)	1023	const_iv (O_EXCL)
732	const_iv (O_APPEND)	1024	const_iv (O_APPEND)
733	#ifndef _WIN32	1025
		1026	const_iv (O_ASYNC)
		1027	const_iv (O_DIRECT)
		1028	const_iv (O_NOATIME)
		1029
		1030	const_iv (O_CLOEXEC)
		1031	const_iv (O_NOCTTY)
		1032	const_iv (O_NOFOLLOW)
		1033	const_iv (O_NONBLOCK)
		1034	const_iv (O_EXEC)
		1035	const_iv (O_SEARCH)
		1036	const_iv (O_DIRECTORY)
		1037	const_iv (O_DSYNC)
		1038	const_iv (O_RSYNC)
		1039	const_iv (O_SYNC)
		1040	const_iv (O_PATH)
		1041	const_iv (O_TMPFILE)
		1042	const_iv (O_TTY_INIT)
		1043
734	const_iv (S_IFIFO)	1044	const_iv (S_IFIFO)
735	#endif	1045	const_iv (S_IFCHR)
736	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	1046	const_iv (S_IFBLK)
737	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	1047	const_iv (S_IFLNK)
738	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	1048	const_iv (S_IFREG)
739	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	1049	const_iv (S_IFDIR)
740	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	1050	const_iv (S_IFWHT)
741	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	1051	const_iv (S_IFSOCK)
742		1052	const_iv (S_IFMT)
743	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
744	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
745	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
746	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
747	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
748		1053
749	const_iv (ST_RDONLY)	1054	const_iv (ST_RDONLY)
750	const_iv (ST_NOSUID)	1055	const_iv (ST_NOSUID)
751	const_iv (ST_NODEV)	1056	const_iv (ST_NODEV)
752	const_iv (ST_NOEXEC)	1057	const_iv (ST_NOEXEC)
…		…
762	const_iv (PROT_NONE)	1067	const_iv (PROT_NONE)
763	const_iv (PROT_EXEC)	1068	const_iv (PROT_EXEC)
764	const_iv (PROT_READ)	1069	const_iv (PROT_READ)
765	const_iv (PROT_WRITE)	1070	const_iv (PROT_WRITE)
766		1071
767	/*const_iv (MAP_FIXED)*/
768	const_iv (MAP_PRIVATE)	1072	const_iv (MAP_PRIVATE)
769	const_iv (MAP_SHARED)	1073	const_iv (MAP_SHARED)
		1074	const_iv (MAP_FIXED)
770	const_iv (MAP_ANONYMOUS)	1075	const_iv (MAP_ANONYMOUS)
771		1076
772	/* linuxish */	1077	/* linuxish */
773	const_iv (MAP_HUGETLB)
774	const_iv (MAP_LOCKED)	1078	const_iv (MAP_LOCKED)
775	const_iv (MAP_NORESERVE)	1079	const_iv (MAP_NORESERVE)
776	const_iv (MAP_POPULATE)	1080	const_iv (MAP_POPULATE)
777	const_iv (MAP_NONBLOCK)	1081	const_iv (MAP_NONBLOCK)
		1082	const_iv (MAP_GROWSDOWN)
		1083	const_iv (MAP_32BIT)
		1084	const_iv (MAP_HUGETLB)
		1085	const_iv (MAP_STACK)
778		1086
		1087	const_iv (F_DUPFD_CLOEXEC)
		1088
		1089	const_iv (F_OFD_GETLK)
		1090	const_iv (F_OFD_SETLK)
		1091	const_iv (F_OFD_GETLKW)
		1092
		1093	const_iv (FIFREEZE)
		1094	const_iv (FITHAW)
		1095	const_iv (FITRIM)
		1096	const_iv (FICLONE)
		1097	const_iv (FICLONERANGE)
		1098	const_iv (FIDEDUPERANGE)
		1099
		1100	const_iv (FS_IOC_GETFLAGS)
		1101	const_iv (FS_IOC_SETFLAGS)
		1102	const_iv (FS_IOC_GETVERSION)
		1103	const_iv (FS_IOC_SETVERSION)
		1104	const_iv (FS_IOC_FIEMAP)
		1105	const_iv (FS_IOC_FSGETXATTR)
		1106	const_iv (FS_IOC_FSSETXATTR)
		1107	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1108	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1109	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1110
		1111	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1112
		1113	const_iv (FS_SECRM_FL)
		1114	const_iv (FS_UNRM_FL)
		1115	const_iv (FS_COMPR_FL)
		1116	const_iv (FS_SYNC_FL)
		1117	const_iv (FS_IMMUTABLE_FL)
		1118	const_iv (FS_APPEND_FL)
		1119	const_iv (FS_NODUMP_FL)
		1120	const_iv (FS_NOATIME_FL)
		1121	const_iv (FS_DIRTY_FL)
		1122	const_iv (FS_COMPRBLK_FL)
		1123	const_iv (FS_NOCOMP_FL)
		1124	const_iv (FS_ENCRYPT_FL)
		1125	const_iv (FS_BTREE_FL)
		1126	const_iv (FS_INDEX_FL)
		1127	const_iv (FS_JOURNAL_DATA_FL)
		1128	const_iv (FS_NOTAIL_FL)
		1129	const_iv (FS_DIRSYNC_FL)
		1130	const_iv (FS_TOPDIR_FL)
		1131	const_iv (FS_FL_USER_MODIFIABLE)
		1132
		1133	const_iv (FS_XFLAG_REALTIME)
		1134	const_iv (FS_XFLAG_PREALLOC)
		1135	const_iv (FS_XFLAG_IMMUTABLE)
		1136	const_iv (FS_XFLAG_APPEND)
		1137	const_iv (FS_XFLAG_SYNC)
		1138	const_iv (FS_XFLAG_NOATIME)
		1139	const_iv (FS_XFLAG_NODUMP)
		1140	const_iv (FS_XFLAG_RTINHERIT)
		1141	const_iv (FS_XFLAG_PROJINHERIT)
		1142	const_iv (FS_XFLAG_NOSYMLINKS)
		1143	const_iv (FS_XFLAG_EXTSIZE)
		1144	const_iv (FS_XFLAG_EXTSZINHERIT)
		1145	const_iv (FS_XFLAG_NODEFRAG)
		1146	const_iv (FS_XFLAG_FILESTREAM)
		1147	const_iv (FS_XFLAG_DAX)
		1148	const_iv (FS_XFLAG_HASATTR)
		1149
		1150	const_iv (FIEMAP_FLAG_SYNC)
		1151	const_iv (FIEMAP_FLAG_XATTR)
		1152	const_iv (FIEMAP_FLAGS_COMPAT)
		1153	const_iv (FIEMAP_EXTENT_LAST)
		1154	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1155	const_iv (FIEMAP_EXTENT_DELALLOC)
		1156	const_iv (FIEMAP_EXTENT_ENCODED)
		1157	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1158	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1159	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1160	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1161	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1162	const_iv (FIEMAP_EXTENT_MERGED)
		1163	const_iv (FIEMAP_EXTENT_SHARED)
		1164
		1165	const_iv (SPLICE_F_MOVE)
		1166	const_iv (SPLICE_F_NONBLOCK)
		1167	const_iv (SPLICE_F_MORE)
		1168	const_iv (SPLICE_F_GIFT)
		1169
		1170	const_iv (EFD_CLOEXEC)
		1171	const_iv (EFD_NONBLOCK)
		1172	const_iv (EFD_SEMAPHORE)
		1173
		1174	/* these are libeio constants, and are independent of gendef0 */
		1175	const_eio (SEEK_SET)
		1176	const_eio (SEEK_CUR)
		1177	const_eio (SEEK_END)
		1178
779	const_iv (MCL_FUTURE)	1179	const_eio (MCL_FUTURE)
780	const_iv (MCL_CURRENT)	1180	const_eio (MCL_CURRENT)
781		1181
782	const_eio (MS_ASYNC)	1182	const_eio (MS_ASYNC)
783	const_eio (MS_INVALIDATE)	1183	const_eio (MS_INVALIDATE)
784	const_eio (MS_SYNC)	1184	const_eio (MS_SYNC)
785		1185
786	const_eio (MT_MODIFY)	1186	const_eio (MT_MODIFY)
787		1187
788	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1188	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
789	const_eio (SYNC_FILE_RANGE_WRITE)	1189	const_eio (SYNC_FILE_RANGE_WRITE)
790	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1190	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1191
		1192	const_eio (FALLOC_FL_KEEP_SIZE)
		1193	const_eio (FALLOC_FL_PUNCH_HOLE)
		1194	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1195	const_eio (FALLOC_FL_ZERO_RANGE)
		1196	const_eio (FALLOC_FL_INSERT_RANGE)
		1197	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1198
		1199	const_eio (RENAME_NOREPLACE)
		1200	const_eio (RENAME_EXCHANGE)
		1201	const_eio (RENAME_WHITEOUT)
791		1202
792	const_eio (READDIR_DENTS)	1203	const_eio (READDIR_DENTS)
793	const_eio (READDIR_DIRS_FIRST)	1204	const_eio (READDIR_DIRS_FIRST)
794	const_eio (READDIR_STAT_ORDER)	1205	const_eio (READDIR_STAT_ORDER)
795	const_eio (READDIR_FOUND_UNKNOWN)	1206	const_eio (READDIR_FOUND_UNKNOWN)
…		…
806	};	1217	};
807		1218
808	aio_stash = gv_stashpv ("IO::AIO" , 1);	1219	aio_stash = gv_stashpv ("IO::AIO" , 1);
809	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1220	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
810	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1221	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1222	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
811		1223
812	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1224	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
813	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1225	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
814		1226
815	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1227	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
816		1228
817	create_respipe ();	1229	reinit ();
818
819	if (eio_init (want_poll, done_poll) < 0)
820	croak ("IO::AIO: unable to initialise eio library");
821
822	/* atfork child called in fifo order, so before eio's handler */
823	X_THREAD_ATFORK (0, 0, atfork_child);
824	}	1230	}
825		1231
826	void	1232	void
		1233	reinit ()
		1234	PROTOTYPE:
		1235
		1236	void
827	max_poll_reqs (int nreqs)	1237	max_poll_reqs (unsigned int nreqs)
828	PROTOTYPE: $	1238	PROTOTYPE: $
829	CODE:	1239	CODE:
830	eio_set_max_poll_reqs (nreqs);	1240	eio_set_max_poll_reqs (nreqs);
831		1241
832	void	1242	void
…		…
834	PROTOTYPE: $	1244	PROTOTYPE: $
835	CODE:	1245	CODE:
836	eio_set_max_poll_time (nseconds);	1246	eio_set_max_poll_time (nseconds);
837		1247
838	void	1248	void
839	min_parallel (int nthreads)	1249	min_parallel (unsigned int nthreads)
840	PROTOTYPE: $	1250	PROTOTYPE: $
841	CODE:	1251	CODE:
842	eio_set_min_parallel (nthreads);	1252	eio_set_min_parallel (nthreads);
843		1253
844	void	1254	void
845	max_parallel (int nthreads)	1255	max_parallel (unsigned int nthreads)
846	PROTOTYPE: $	1256	PROTOTYPE: $
847	CODE:	1257	CODE:
848	eio_set_max_parallel (nthreads);	1258	eio_set_max_parallel (nthreads);
849		1259
850	void	1260	void
851	max_idle (int nthreads)	1261	max_idle (unsigned int nthreads)
852	PROTOTYPE: $	1262	PROTOTYPE: $
853	CODE:	1263	CODE:
854	eio_set_max_idle (nthreads);	1264	eio_set_max_idle (nthreads);
855		1265
856	void	1266	void
		1267	idle_timeout (unsigned int seconds)
		1268	PROTOTYPE: $
		1269	CODE:
		1270	eio_set_idle_timeout (seconds);
		1271
		1272	void
857	max_outstanding (int maxreqs)	1273	max_outstanding (unsigned int maxreqs)
858	PROTOTYPE: $	1274	PROTOTYPE: $
859	CODE:	1275	CODE:
860	max_outstanding = maxreqs;	1276	max_outstanding = maxreqs;
861		1277
862	void	1278	void
863	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1279	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
864	PROTOTYPE: $$$;$
865	PPCODE:	1280	PPCODE:
866	{	1281	{
867	dREQ;	1282	dREQ;
868		1283
		1284	req->type = EIO_WD_OPEN;
		1285	req_set_path1 (req, pathname);
		1286
		1287	REQ_SEND;
		1288	}
		1289
		1290	void
		1291	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1292	PPCODE:
		1293	{
		1294	dREQ;
		1295
869	req->type = EIO_OPEN;	1296	req->type = EIO_OPEN;
870	req->sv1 = newSVsv (pathname);	1297	req_set_path1 (req, pathname);
871	req->ptr1 = SvPVbyte_nolen (req->sv1);
872	req->int1 = flags;	1298	req->int1 = flags;
873	req->int2 = mode;	1299	req->int2 = mode;
874		1300
875	REQ_SEND;	1301	REQ_SEND;
876	}	1302	}
877		1303
878	void	1304	void
879	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1305	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
880	PROTOTYPE: $;$
881	ALIAS:	1306	ALIAS:
882	aio_fsync = EIO_FSYNC	1307	aio_fsync = EIO_FSYNC
883	aio_fdatasync = EIO_FDATASYNC	1308	aio_fdatasync = EIO_FDATASYNC
		1309	aio_syncfs = EIO_SYNCFS
884	PPCODE:	1310	PPCODE:
885	{	1311	{
886	int fd = s_fileno_croak (fh, 0);	1312	int fd = s_fileno_croak (fh, 0);
887	dREQ;	1313	dREQ;
888		1314
889	req->type = ix;	1315	req->type = ix;
890	req->sv1 = newSVsv (fh);	1316	req->sv1 = newSVsv (fh);
891	req->int1 = fd;	1317	req->int1 = fd;
892		1318
893	REQ_SEND (req);	1319	REQ_SEND;
894	}	1320	}
895		1321
896	void	1322	void
897	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1323	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
898	PROTOTYPE: $$$$;$
899	PPCODE:	1324	PPCODE:
900	{	1325	{
901	int fd = s_fileno_croak (fh, 0);	1326	int fd = s_fileno_croak (fh, 0);
902	dREQ;	1327	dREQ;
903		1328
904	req->type = EIO_SYNC_FILE_RANGE;	1329	req->type = EIO_SYNC_FILE_RANGE;
905	req->sv1 = newSVsv (fh);	1330	req->sv1 = newSVsv (fh);
906	req->int1 = fd;	1331	req->int1 = fd;
907	req->offs = offset;	1332	req->offs = offset;
908	req->size = nbytes;	1333	req->size = nbytes;
909	req->int2 = flags;	1334	req->int2 = flags;
910		1335
911	REQ_SEND (req);	1336	REQ_SEND;
912	}	1337	}
913		1338
914	void	1339	void
915	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1340	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
916	PROTOTYPE: $;$
917	PPCODE:	1341	PPCODE:
918	{	1342	{
919	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
920	int fd = s_fileno_croak (fh, 0);	1343	int fd = s_fileno_croak (fh, 0);
921	dREQ;	1344	dREQ;
922		1345
923	if (close_pipe < 0)	1346	req->type = EIO_FALLOCATE;
		1347	req->sv1 = newSVsv (fh);
		1348	req->int1 = fd;
		1349	req->int2 = mode;
		1350	req->offs = offset;
		1351	req->size = len;
		1352
		1353	REQ_SEND;
		1354	}
		1355
		1356	void
		1357	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1358	PPCODE:
		1359	{
		1360	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1361	int fd = s_fileno_croak (fh, 0);
		1362	dREQ;
		1363
		1364	if (expect_false (close_fd < 0))
924	{	1365	{
925	int pipefd [2];	1366	int pipefd [2];
926		1367
		1368	if (
		1369	#ifdef _WIN32
		1370	_pipe (pipefd, 1, _O_BINARY) < 0
		1371	#else
927	if (pipe (pipefd) < 0	1372	pipe (pipefd) < 0
928	|| close (pipefd [1]) < 0
929	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1373	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1374	#endif
		1375	|| close (pipefd [1]) < 0
		1376	)
930	abort (); /*D*/	1377	abort (); /*D*/
931		1378
932	close_pipe = pipefd [0];	1379	close_fd = pipefd [0];
933	}	1380	}
934		1381
935	req->type = EIO_DUP2;	1382	req->type = EIO_DUP2;
936	req->int1 = close_pipe;	1383	req->int1 = close_fd;
937	req->sv2 = newSVsv (fh);	1384	req->sv2 = newSVsv (fh);
938	req->int2 = fd;	1385	req->int2 = fd;
939		1386
940	REQ_SEND (req);	1387	REQ_SEND;
941	}	1388	}
942		1389
943	void	1390	void
		1391	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1392	PPCODE:
		1393	{
		1394	int fd = s_fileno_croak (fh, 0);
		1395	dREQ;
		1396
		1397	req->type = EIO_SEEK;
		1398	req->sv1 = newSVsv (fh);
		1399	req->int1 = fd;
		1400	req->offs = SvVAL64 (offset);
		1401	req->int2 = whence;
		1402
		1403	REQ_SEND;
		1404	}
		1405
		1406	void
944	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1407	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
945	ALIAS:	1408	ALIAS:
946	aio_read = EIO_READ	1409	aio_read = EIO_READ
947	aio_write = EIO_WRITE	1410	aio_write = EIO_WRITE
948	PROTOTYPE: $$$$$;$
949	PPCODE:	1411	PPCODE:
950	{	1412	{
951	STRLEN svlen;	1413	STRLEN svlen;
952	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1414	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
953	char *svptr = SvPVbyte (data, svlen);	1415	char *svptr = SvPVbyte (data, svlen);
…		…
966	len = svlen - dataoffset;	1428	len = svlen - dataoffset;
967	}	1429	}
968	else	1430	else
969	{	1431	{
970	/* read: check type and grow scalar as necessary */	1432	/* read: check type and grow scalar as necessary */
971	SvUPGRADE (data, SVt_PV);	1433	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
972	svptr = SvGROW (data, len + dataoffset + 1);	1434	svptr = sv_grow (data, len + dataoffset + 1);
		1435	else if (SvCUR (data) < len + dataoffset)
		1436	croak ("length + dataoffset outside of scalar, and cannot grow");
973	}	1437	}
974		1438
975	{	1439	{
976	dREQ;	1440	dREQ;
977		1441
…		…
993	REQ_SEND;	1457	REQ_SEND;
994	}	1458	}
995	}	1459	}
996		1460
997	void	1461	void
998	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1462	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
999	PROTOTYPE: $$;$	1463	ALIAS:
		1464	aio_ioctl = EIO_IOCTL
		1465	aio_fcntl = EIO_FCNTL
1000	PPCODE:	1466	PPCODE:
1001	{	1467	{
1002	SV *data;	1468	int fd = s_fileno_croak (fh, 0);
		1469	char *svptr;
		1470
		1471	if (SvPOK (arg) || !SvNIOK (arg))
		1472	{
		1473	STRLEN svlen;
		1474	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1475	#ifdef IOCPARM_LEN
		1476	STRLEN need = IOCPARM_LEN (request);
		1477	#else
		1478	STRLEN need = 256;
		1479	#endif
		1480
		1481	if (svlen < need)
		1482	svptr = SvGROW (arg, need);
		1483	}
		1484	else
		1485	svptr = (char *)SvIV (arg);
		1486
		1487	{
		1488	dREQ;
		1489
		1490	req->type = ix;
		1491	req->sv1 = newSVsv (fh);
		1492	req->int1 = fd;
		1493	req->int2 = (long)request;
		1494	req->sv2 = SvREFCNT_inc (arg);
		1495	req->ptr2 = svptr;
		1496
		1497	REQ_SEND;
		1498	}
		1499	}
		1500
		1501	void
		1502	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1503	ALIAS:
		1504	aio_readlink = EIO_READLINK
		1505	aio_realpath = EIO_REALPATH
		1506	PPCODE:
		1507	{
1003	dREQ;	1508	dREQ;
1004		1509
1005	req->type = EIO_READLINK;	1510	req->type = ix;
1006	req->sv1 = newSVsv (path);	1511	req_set_path1 (req, pathname);
1007	req->ptr1 = SvPVbyte_nolen (req->sv1);
1008		1512
1009	REQ_SEND;	1513	REQ_SEND;
1010	}	1514	}
1011		1515
1012	void	1516	void
1013	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1517	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1014	PROTOTYPE: $$$$;$
1015	PPCODE:	1518	PPCODE:
1016	{	1519	{
1017	int ifd = s_fileno_croak (in_fh , 0);	1520	int ifd = s_fileno_croak (in_fh , 0);
1018	int ofd = s_fileno_croak (out_fh, 1);	1521	int ofd = s_fileno_croak (out_fh, 1);
1019	dREQ;	1522	dREQ;
1020		1523
1021	req->type = EIO_SENDFILE;	1524	req->type = EIO_SENDFILE;
1022	req->sv1 = newSVsv (out_fh);	1525	req->sv1 = newSVsv (out_fh);
1023	req->int1 = ofd;	1526	req->int1 = ofd;
…		…
1028		1531
1029	REQ_SEND;	1532	REQ_SEND;
1030	}	1533	}
1031		1534
1032	void	1535	void
1033	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1536	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1034	PROTOTYPE: $$$;$
1035	PPCODE:	1537	PPCODE:
1036	{	1538	{
1037	int fd = s_fileno_croak (fh, 0);	1539	int fd = s_fileno_croak (fh, 0);
1038	dREQ;	1540	dREQ;
1039		1541
1040	req->type = EIO_READAHEAD;	1542	req->type = EIO_READAHEAD;
1041	req->sv1 = newSVsv (fh);	1543	req->sv1 = newSVsv (fh);
1042	req->int1 = fd;	1544	req->int1 = fd;
…		…
1045		1547
1046	REQ_SEND;	1548	REQ_SEND;
1047	}	1549	}
1048		1550
1049	void	1551	void
1050	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1552	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1051	ALIAS:	1553	ALIAS:
1052	aio_stat = EIO_STAT	1554	aio_stat = EIO_STAT
1053	aio_lstat = EIO_LSTAT	1555	aio_lstat = EIO_LSTAT
1054	aio_statvfs = EIO_STATVFS	1556	aio_statvfs = EIO_STATVFS
1055	PPCODE:	1557	PPCODE:
1056	{	1558	{
1057	dREQ;	1559	dREQ;
1058		1560
1059	req->sv1 = newSVsv (fh_or_path);	1561	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1060
1061	if (SvPOK (req->sv1))
1062	{
1063	req->type = ix;
1064	req->ptr1 = SvPVbyte_nolen (req->sv1);
1065	}
1066	else
1067	{
1068	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1069	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1070	}
1071		1562
1072	REQ_SEND;	1563	REQ_SEND;
1073	}	1564	}
1074		1565
		1566	UV
		1567	major (UV dev)
		1568	ALIAS:
		1569	minor = 1
		1570	CODE:
		1571	RETVAL = ix ? minor (dev) : major (dev);
		1572	OUTPUT:
		1573	RETVAL
		1574
		1575	UV
		1576	makedev (UV maj, UV min)
		1577	CODE:
		1578	RETVAL = makedev (maj, min);
		1579	OUTPUT:
		1580	RETVAL
		1581
1075	void	1582	void
1076	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1583	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1077	PPCODE:	1584	PPCODE:
1078	{	1585	{
1079	dREQ;	1586	dREQ;
1080		1587
1081	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1588	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1082	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1589	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1083	req->sv1 = newSVsv (fh_or_path);	1590	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1084
1085	if (SvPOK (req->sv1))
1086	{
1087	req->type = EIO_UTIME;
1088	req->ptr1 = SvPVbyte_nolen (req->sv1);
1089	}
1090	else
1091	{
1092	req->type = EIO_FUTIME;
1093	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1094	}
1095		1591
1096	REQ_SEND;	1592	REQ_SEND;
1097	}	1593	}
1098		1594
1099	void	1595	void
1100	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1596	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1101	PPCODE:	1597	PPCODE:
1102	{	1598	{
1103	dREQ;	1599	dREQ;
1104		1600
1105	req->sv1 = newSVsv (fh_or_path);
1106	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1601	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1107		1602	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1108	if (SvPOK (req->sv1))
1109	{
1110	req->type = EIO_TRUNCATE;
1111	req->ptr1 = SvPVbyte_nolen (req->sv1);
1112	}
1113	else
1114	{
1115	req->type = EIO_FTRUNCATE;
1116	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1117	}
1118		1603
1119	REQ_SEND;	1604	REQ_SEND;
1120	}	1605	}
1121		1606
1122	void	1607	void
1123	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1608	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1124	ALIAS:
1125	aio_chmod = EIO_CHMOD
1126	aio_mkdir = EIO_MKDIR
1127	PPCODE:	1609	PPCODE:
1128	{	1610	{
1129	dREQ;	1611	dREQ;
1130		1612
1131	req->int2 = mode;	1613	req->int2 = mode;
1132	req->sv1 = newSVsv (fh_or_path);	1614	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1133
1134	if (SvPOK (req->sv1))
1135	{
1136	req->type = ix;
1137	req->ptr1 = SvPVbyte_nolen (req->sv1);
1138	}
1139	else
1140	{
1141	req->type = EIO_FCHMOD;
1142	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1143	}
1144		1615
1145	REQ_SEND;	1616	REQ_SEND;
1146	}	1617	}
1147		1618
1148	void	1619	void
1149	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1620	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1150	PPCODE:	1621	PPCODE:
1151	{	1622	{
1152	dREQ;	1623	dREQ;
1153		1624
1154	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1625	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1155	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1626	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1156	req->sv1 = newSVsv (fh_or_path);	1627	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1157
1158	if (SvPOK (req->sv1))
1159	{
1160	req->type = EIO_CHOWN;
1161	req->ptr1 = SvPVbyte_nolen (req->sv1);
1162	}
1163	else
1164	{
1165	req->type = EIO_FCHOWN;
1166	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1167	}
1168		1628
1169	REQ_SEND;	1629	REQ_SEND;
1170	}	1630	}
1171		1631
1172	void	1632	void
1173	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1633	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1174	PPCODE:	1634	PPCODE:
1175	{	1635	{
1176	dREQ;	1636	dREQ;
1177		1637
1178	req->type = EIO_READDIR;	1638	req->type = EIO_READDIR;
1179	req->sv1 = newSVsv (pathname);
1180	req->ptr1 = SvPVbyte_nolen (req->sv1);
1181	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1639	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1182		1640
1183	if (flags & EIO_READDIR_DENTS)	1641	if (flags & EIO_READDIR_DENTS)
1184	req->int1 |= EIO_READDIR_CUSTOM2;	1642	req->int1 |= EIO_READDIR_CUSTOM2;
1185		1643
		1644	req_set_path1 (req, pathname);
		1645
1186	REQ_SEND;	1646	REQ_SEND;
1187	}	1647	}
1188		1648
1189	void	1649	void
		1650	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1651	PPCODE:
		1652	{
		1653	dREQ;
		1654
		1655	req->type = EIO_MKDIR;
		1656	req->int2 = mode;
		1657	req_set_path1 (req, pathname);
		1658
		1659	REQ_SEND;
		1660	}
		1661
		1662	void
1190	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1663	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1191	ALIAS:	1664	ALIAS:
1192	aio_unlink = EIO_UNLINK	1665	aio_unlink = EIO_UNLINK
1193	aio_rmdir = EIO_RMDIR	1666	aio_rmdir = EIO_RMDIR
1194	aio_readdir = EIO_READDIR	1667	aio_readdir = EIO_READDIR
1195	PPCODE:	1668	PPCODE:
1196	{	1669	{
1197	dREQ;	1670	dREQ;
1198		1671
1199	req->type = ix;	1672	req->type = ix;
1200	req->sv1 = newSVsv (pathname);	1673	req_set_path1 (req, pathname);
1201	req->ptr1 = SvPVbyte_nolen (req->sv1);
1202		1674
1203	REQ_SEND;	1675	REQ_SEND;
1204	}	1676	}
1205		1677
1206	void	1678	void
1207	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1679	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1208	ALIAS:	1680	ALIAS:
1209	aio_link = EIO_LINK	1681	aio_link = EIO_LINK
1210	aio_symlink = EIO_SYMLINK	1682	aio_symlink = EIO_SYMLINK
1211	aio_rename = EIO_RENAME	1683	aio_rename = EIO_RENAME
1212	PPCODE:	1684	PPCODE:
1213	{	1685	{
		1686	eio_wd wd2 = 0;
1214	dREQ;	1687	dREQ;
1215		1688
1216	req->type = ix;	1689	req->type = ix;
1217	req->sv1 = newSVsv (oldpath);	1690	req_set_path1 (req, oldpath);
1218	req->ptr1 = SvPVbyte_nolen (req->sv1);	1691	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1219	req->sv2 = newSVsv (newpath);	1692	req->int3 = (long)wd2;
1220	req->ptr2 = SvPVbyte_nolen (req->sv2);
1221		1693
1222	REQ_SEND;	1694	REQ_SEND;
1223	}	1695	}
1224		1696
1225	void	1697	void
		1698	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1699	PPCODE:
		1700	{
		1701	eio_wd wd2 = 0;
		1702	dREQ;
		1703
		1704	req->type = EIO_RENAME;
		1705	req_set_path1 (req, oldpath);
		1706	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1707	req->int2 = flags;
		1708	req->int3 = (long)wd2;
		1709
		1710	REQ_SEND;
		1711	}
		1712
		1713	void
1226	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1714	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1227	PPCODE:	1715	PPCODE:
1228	{	1716	{
1229	dREQ;	1717	dREQ;
1230		1718
1231	req->type = EIO_MKNOD;	1719	req->type = EIO_MKNOD;
1232	req->sv1 = newSVsv (pathname);
1233	req->ptr1 = SvPVbyte_nolen (req->sv1);
1234	req->int2 = (mode_t)mode;	1720	req->int2 = (mode_t)mode;
1235	req->offs = dev;	1721	req->offs = dev;
		1722	req_set_path1 (req, pathname);
1236		1723
1237	REQ_SEND;	1724	REQ_SEND;
1238	}	1725	}
1239		1726
1240	void	1727	void
1241	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1728	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1242	ALIAS:	1729	ALIAS:
1243	aio_mtouch = EIO_MTOUCH	1730	aio_mtouch = EIO_MTOUCH
1244	aio_msync = EIO_MSYNC	1731	aio_msync = EIO_MSYNC
1245	PROTOTYPE: $$$$;$
1246	PPCODE:	1732	PPCODE:
1247	{	1733	{
1248	STRLEN svlen;	1734	STRLEN svlen;
		1735	char *svptr = SvPVbyte (data, svlen);
1249	UV len = SvUV (length);	1736	UV len = SvUV (length);
1250	char *svptr = SvPVbyte (data, svlen);	1737
		1738	if (flags < 0)
		1739	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1251		1740
1252	if (offset < 0)	1741	if (offset < 0)
1253	offset += svlen;	1742	offset += svlen;
1254		1743
1255	if (offset < 0 || offset > svlen)	1744	if (offset < 0 || offset > svlen)
…		…
1260		1749
1261	{	1750	{
1262	dREQ;	1751	dREQ;
1263		1752
1264	req->type = ix;	1753	req->type = ix;
1265	req->size = len;
1266	req->sv2 = SvREFCNT_inc (data);	1754	req->sv2 = SvREFCNT_inc (data);
1267	req->ptr2 = (char *)svptr + offset;	1755	req->ptr2 = (char *)svptr + offset;
		1756	req->size = len;
1268	req->int1 = flags;	1757	req->int1 = flags;
1269		1758
1270	REQ_SEND;	1759	REQ_SEND;
1271	}	1760	}
1272	}	1761	}
1273		1762
1274	void	1763	void
		1764	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1765	PPCODE:
		1766	{
		1767	STRLEN svlen;
		1768	char *svptr = SvPVbyte (data, svlen);
		1769	UV len = SvUV (length);
		1770
		1771	if (offset < 0)
		1772	offset += svlen;
		1773
		1774	if (offset < 0 || offset > svlen)
		1775	croak ("offset outside of scalar");
		1776
		1777	if (!SvOK (length) || len + offset > svlen)
		1778	len = svlen - offset;
		1779
		1780	{
		1781	dREQ;
		1782
		1783	req->type = EIO_MLOCK;
		1784	req->sv2 = SvREFCNT_inc (data);
		1785	req->ptr2 = (char *)svptr + offset;
		1786	req->size = len;
		1787
		1788	REQ_SEND;
		1789	}
		1790	}
		1791
		1792	void
		1793	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1794	PPCODE:
		1795	{
		1796	dREQ;
		1797
		1798	req->type = EIO_MLOCKALL;
		1799	req->int1 = flags;
		1800
		1801	REQ_SEND;
		1802	}
		1803
		1804	void
		1805	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1806	PPCODE:
		1807	{
		1808	int fd = s_fileno_croak (fh, 0);
		1809	dREQ;
		1810
		1811	req->type = EIO_CUSTOM;
		1812	req->sv1 = newSVsv (fh);
		1813	req->int1 = fd;
		1814
		1815	req->feed = fiemap;
		1816	#if HAVE_FIEMAP
		1817	/* keep our fingers crossed that the next two types are 64 bit */
		1818	req->offs = start;
		1819	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1820	req->int2 = flags;
		1821	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1822	#endif
		1823
		1824	REQ_SEND;
		1825	}
		1826
		1827	void
		1828	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1829	PPCODE:
		1830	{
		1831	char *svptr = 0;
		1832
		1833	sv_clear_foreign (data);
		1834
		1835	if (length) /* known length, directly read into scalar */
		1836	{
		1837	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1838	svptr = sv_grow (data, length + 1);
		1839	else if (SvCUR (data) < length)
		1840	croak ("length outside of scalar, and cannot grow");
		1841	else
		1842	svptr = SvPVbyte_nolen (data);
		1843	}
		1844
		1845	{
		1846	dREQ;
		1847
		1848	req->type = EIO_SLURP;
		1849	req_set_path1 (req, pathname);
		1850	req->offs = offset;
		1851	req->size = length;
		1852	req->sv2 = SvREFCNT_inc (data);
		1853	req->ptr2 = svptr;
		1854
		1855	if (!SvREADONLY (data))
		1856	{
		1857	SvREADONLY_on (data);
		1858	req->flags |= FLAG_SV2_RO_OFF;
		1859	}
		1860
		1861	REQ_SEND;
		1862	}
		1863	}
		1864
		1865	void
1275	aio_busy (double delay, SV *callback=&PL_sv_undef)	1866	aio_busy (double delay, SV *callback = &PL_sv_undef)
1276	PPCODE:	1867	PPCODE:
1277	{	1868	{
1278	dREQ;	1869	dREQ;
1279		1870
1280	req->type = EIO_BUSY;	1871	req->type = EIO_BUSY;
…		…
1282		1873
1283	REQ_SEND;	1874	REQ_SEND;
1284	}	1875	}
1285		1876
1286	void	1877	void
1287	aio_group (SV *callback=&PL_sv_undef)	1878	aio_group (SV *callback = &PL_sv_undef)
1288	PROTOTYPE: ;$
1289	PPCODE:	1879	PPCODE:
1290	{	1880	{
1291	dREQ;	1881	dREQ;
1292		1882
1293	req->type = EIO_GROUP;	1883	req->type = EIO_GROUP;
1294		1884
		1885	PUTBACK;
1295	req_submit (req);	1886	req_submit (req);
		1887	SPAGAIN;
		1888
1296	XPUSHs (req_sv (req, aio_grp_stash));	1889	XPUSHs (req_sv (req, aio_grp_stash));
1297	}	1890	}
1298		1891
1299	void	1892	void
1300	aio_nop (SV *callback=&PL_sv_undef)	1893	aio_nop (SV *callback = &PL_sv_undef)
1301	ALIAS:	1894	ALIAS:
1302	aio_nop = EIO_NOP	1895	aio_nop = EIO_NOP
1303	aio_sync = EIO_SYNC	1896	aio_sync = EIO_SYNC
1304	PPCODE:	1897	PPCODE:
1305	{	1898	{
…		…
1309		1902
1310	REQ_SEND;	1903	REQ_SEND;
1311	}	1904	}
1312		1905
1313	int	1906	int
1314	aioreq_pri (int pri = 0)	1907	aioreq_pri (int pri = NO_INIT)
1315	PROTOTYPE: ;$
1316	CODE:	1908	CODE:
1317	RETVAL = next_pri;	1909	RETVAL = next_pri;
1318	if (items > 0)	1910	if (items > 0)
1319	{	1911	{
1320	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1912	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1332	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1924	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1333	next_pri = nice;	1925	next_pri = nice;
1334		1926
1335	void	1927	void
1336	flush ()	1928	flush ()
1337	PROTOTYPE:
1338	CODE:	1929	CODE:
1339	while (eio_nreqs ())	1930	while (eio_nreqs ())
1340	{	1931	{
1341	poll_wait ();	1932	poll_wait ();
1342	poll_cb ();	1933	poll_cb ();
1343	}	1934	}
1344		1935
1345	int	1936	int
1346	poll()	1937	poll ()
1347	PROTOTYPE:
1348	CODE:	1938	CODE:
1349	poll_wait ();	1939	poll_wait ();
1350	RETVAL = poll_cb ();	1940	RETVAL = poll_cb ();
1351	OUTPUT:	1941	OUTPUT:
1352	RETVAL	1942	RETVAL
1353		1943
1354	int	1944	int
1355	poll_fileno()	1945	poll_fileno ()
1356	PROTOTYPE:
1357	CODE:	1946	CODE:
1358	RETVAL = s_epipe_fd (&respipe);	1947	RETVAL = s_epipe_fd (&respipe);
1359	OUTPUT:	1948	OUTPUT:
1360	RETVAL	1949	RETVAL
1361		1950
1362	int	1951	int
1363	poll_cb(...)	1952	poll_cb (...)
1364	PROTOTYPE:	1953	PROTOTYPE:
1365	CODE:	1954	CODE:
1366	RETVAL = poll_cb ();	1955	RETVAL = poll_cb ();
1367	OUTPUT:	1956	OUTPUT:
1368	RETVAL	1957	RETVAL
1369		1958
1370	void	1959	void
1371	poll_wait()	1960	poll_wait ()
1372	PROTOTYPE:
1373	CODE:	1961	CODE:
1374	poll_wait ();	1962	poll_wait ();
1375		1963
1376	int	1964	int
1377	nreqs()	1965	nreqs ()
1378	PROTOTYPE:
1379	CODE:	1966	CODE:
1380	RETVAL = eio_nreqs ();	1967	RETVAL = eio_nreqs ();
1381	OUTPUT:	1968	OUTPUT:
1382	RETVAL	1969	RETVAL
1383		1970
1384	int	1971	int
1385	nready()	1972	nready ()
1386	PROTOTYPE:
1387	CODE:	1973	CODE:
1388	RETVAL = eio_nready ();	1974	RETVAL = eio_nready ();
1389	OUTPUT:	1975	OUTPUT:
1390	RETVAL	1976	RETVAL
1391		1977
1392	int	1978	int
1393	npending()	1979	npending ()
1394	PROTOTYPE:
1395	CODE:	1980	CODE:
1396	RETVAL = eio_npending ();	1981	RETVAL = eio_npending ();
1397	OUTPUT:	1982	OUTPUT:
1398	RETVAL	1983	RETVAL
1399		1984
1400	int	1985	int
1401	nthreads()	1986	nthreads ()
1402	PROTOTYPE:
1403	CODE:	1987	CODE:
1404	RETVAL = eio_nthreads ();	1988	RETVAL = eio_nthreads ();
1405	OUTPUT:	1989	OUTPUT:
1406	RETVAL	1990	RETVAL
1407		1991
1408	int	1992	int
1409	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1993	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1410	PROTOTYPE: $$$$
1411	CODE:	1994	CODE:
1412	RETVAL = posix_fadvise (fh, offset, length, advice);	1995	RETVAL = posix_fadvise (fh, offset, length, advice);
1413	OUTPUT:	1996	OUTPUT:
1414	RETVAL	1997	RETVAL
1415		1998
1416	ssize_t	1999	IV
1417	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	2000	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1418	PROTOTYPE: $$$$
1419	CODE:	2001	CODE:
1420	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2002	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1421	OUTPUT:	2003	OUTPUT:
1422	RETVAL	2004	RETVAL
1423		2005
1424	void	2006	void
1425	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2007	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1426	PROTOTYPE: $$$$$;$
1427	PPCODE:	2008	PPCODE:
1428	sv_unmagic (scalar, MMAP_MAGIC);	2009	sv_clear_foreign (scalar);
1429	{	2010	{
1430	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2011	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1431	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2012	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1432	if (addr == (void *)-1)	2013	if (addr == (void *)-1)
1433	XSRETURN_NO;	2014	XSRETURN_NO;
1434		2015
1435	sv_force_normal (scalar);	2016	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1436
1437	/* we store the length in mg_obj, as namlen is I32 :/ */
1438	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1439	->mg_obj = (SV *)length;
1440
1441	SvUPGRADE (scalar, SVt_PV); /* nop... */
1442		2017
1443	if (!(prot & PROT_WRITE))	2018	if (!(prot & PROT_WRITE))
1444	SvREADONLY_on (scalar);	2019	SvREADONLY_on (scalar);
1445		2020
1446	if (SvLEN (scalar))
1447	Safefree (SvPVX (scalar));
1448
1449	SvPVX (scalar) = (char *)addr;
1450	SvCUR_set (scalar, length);
1451	SvLEN_set (scalar, 0);
1452	SvPOK_only (scalar);
1453
1454	XSRETURN_YES;	2021	XSRETURN_YES;
1455	}	2022	}
1456		2023
1457	void	2024	void
1458	munmap (SV *scalar)	2025	munmap (SV *scalar)
1459	PROTOTYPE: $
1460	CODE:	2026	CODE:
1461	sv_unmagic (scalar, MMAP_MAGIC);	2027	sv_clear_foreign (scalar);
1462		2028
1463	int	2029	int
1464	madvise (SV *scalar, off_t offset, off_t length, IV advice_or_prot)	2030	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1465	ALIAS:	2031	ALIAS:
1466	mprotect = 1	2032	mprotect = 1
1467	PROTOTYPE: $$$$
1468	CODE:	2033	CODE:
1469	{	2034	{
1470	STRLEN cur;	2035	STRLEN svlen;
1471	char *addr = SvPVbyte (scalar, cur);	2036	void *addr = SvPVbyte (scalar, svlen);
		2037	STRLEN len = SvUV (length);
1472		2038
1473	if (offset > cur)	2039	if (offset < 0)
1474	RETVAL = errno = EFAULT;	2040	offset += svlen;
1475	else	2041
		2042	if (offset < 0 || offset > svlen)
		2043	croak ("offset outside of scalar");
		2044
		2045	if (!SvOK (length) || len + offset > svlen)
		2046	len = svlen - offset;
		2047
		2048	addr = (void *)(((intptr_t)addr) + offset);
		2049	eio_page_align (&addr, &len);
		2050
		2051	switch (ix)
1476	{	2052	{
1477	if (!SvOK (ST (2)))
1478	length = cur - offset;
1479
1480	if (offset + length > cur)
1481	RETVAL = errno = EFAULT;
1482	else
1483	switch (ix)
1484	{
1485	case 0: RETVAL = posix_madvise (addr + offset, length, advice_or_prot); break;	2053	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1486	case 1: RETVAL = mprotect (addr + offset, length, advice_or_prot); break;	2054	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1487	}
1488	}	2055	}
1489	}	2056	}
1490	OUTPUT:	2057	OUTPUT:
1491	RETVAL	2058	RETVAL
1492		2059
1493	int	2060	int
1494	mlockall (int flags)	2061	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1495	PROTOTYPE: $
1496	CODE:	2062	CODE:
		2063	{
		2064	STRLEN svlen;
		2065	void *addr = SvPVbyte (scalar, svlen);
		2066	size_t len = SvUV (length);
		2067
		2068	if (offset < 0)
		2069	offset += svlen;
		2070
		2071	if (offset < 0 || offset > svlen)
		2072	croak ("offset outside of scalar");
		2073
		2074	if (!SvOK (length) || len + offset > svlen)
		2075	len = svlen - offset;
		2076
		2077	addr = (void *)(((intptr_t)addr) + offset);
		2078	eio_page_align (&addr, &len);
1497	#if _POSIX_MEMLOCK	2079	#if _POSIX_MEMLOCK_RANGE
1498	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	2080	RETVAL = munlock (addr, len);
1499	extern int mallopt (int, int);
1500	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1501	#endif
1502	mlockall (flags);
1503	#else	2081	#else
1504	RETVAL = -1;	2082	RETVAL = EIO_ENOSYS ();
1505	errno = ENOSYS;
1506	#endif	2083	#endif
		2084	}
1507	OUTPUT:	2085	OUTPUT:
1508	RETVAL	2086	RETVAL
1509		2087
1510	int	2088	int
1511	munlockall ()	2089	munlockall ()
1512	PROTOTYPE:
1513	CODE:	2090	CODE:
1514	#if _POSIX_MEMLOCK	2091	#if _POSIX_MEMLOCK
1515	munlockall ();	2092	munlockall ();
1516	#else	2093	#else
1517	RETVAL = -1;	2094	RETVAL = EIO_ENOSYS ();
1518	errno = ENOSYS;
1519	#endif	2095	#endif
1520	OUTPUT:	2096	OUTPUT:
1521	RETVAL	2097	RETVAL
		2098
		2099	int
		2100	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2101	CODE:
		2102	{
		2103	#if HAVE_LINUX_SPLICE
		2104	loff_t off_in_, off_out_;
		2105	RETVAL = splice (
		2106	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2107	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2108	length, flags
		2109	);
		2110	#else
		2111	RETVAL = EIO_ENOSYS ();
		2112	#endif
		2113	}
		2114	OUTPUT:
		2115	RETVAL
		2116
		2117	int
		2118	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2119	CODE:
		2120	#if HAVE_LINUX_SPLICE
		2121	RETVAL = tee (rfh, wfh, length, flags);
		2122	#else
		2123	RETVAL = EIO_ENOSYS ();
		2124	#endif
		2125	OUTPUT:
		2126	RETVAL
		2127
		2128	int
		2129	pipesize (aio_rfd rfh, int new_size = -1)
		2130	PROTOTYPE: $;$
		2131	CODE:
		2132	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2133	if (new_size >= 0)
		2134	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2135	else
		2136	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2137	#else
		2138	errno = ENOSYS;
		2139	RETVAL = -1;
		2140	#endif
		2141	OUTPUT:
		2142	RETVAL
		2143
		2144	void
		2145	pipe2 (int flags = 0)
		2146	PROTOTYPE: ;$
		2147	PPCODE:
		2148	{
		2149	int fd[2];
		2150	int res;
		2151
		2152	if (flags)
		2153	#if HAVE_PIPE2
		2154	res = pipe2 (fd, flags);
		2155	#else
		2156	res = (errno = ENOSYS, -1);
		2157	#endif
		2158	else
		2159	res = pipe (fd);
		2160
		2161	if (!res)
		2162	{
		2163	EXTEND (SP, 2);
		2164	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2165	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2166	}
		2167	}
		2168
		2169	void
		2170	eventfd (unsigned int initval = 0, int flags = 0)
		2171	PPCODE:
		2172	{
		2173	int fd;
		2174	#if HAVE_EVENTFD
		2175	fd = eventfd (initval, flags);
		2176	#else
		2177	fd = (errno = ENOSYS, -1);
		2178	#endif
		2179
		2180	XPUSHs (newmortalFH (fd, O_RDWR));
		2181	}
		2182
		2183	UV
		2184	get_fdlimit ()
		2185	CODE:
		2186	#if HAVE_RLIMITS
		2187	struct rlimit rl;
		2188	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2189	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2190	#endif
		2191	XSRETURN_UNDEF;
		2192	OUTPUT:
		2193	RETVAL
		2194
		2195	void
		2196	min_fdlimit (UV limit = 0x7fffffffU)
		2197	CODE:
		2198	{
		2199	#if HAVE_RLIMITS
		2200	struct rlimit rl;
		2201	rlim_t orig_rlim_max;
		2202	UV bit;
		2203
		2204	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2205	goto fail;
		2206
		2207	if (rl.rlim_cur == RLIM_INFINITY)
		2208	XSRETURN_YES;
		2209
		2210	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2211
		2212	if (rl.rlim_cur < limit)
		2213	{
		2214	rl.rlim_cur = limit;
		2215
		2216	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2217	rl.rlim_max = rl.rlim_cur;
		2218	}
		2219
		2220	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2221	XSRETURN_YES;
		2222
		2223	if (errno == EPERM)
		2224	{
		2225	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2226	/* our limit overflows a system-wide limit */
		2227	/* try an adaptive algorithm, but do not lower the hardlimit */
		2228	rl.rlim_max = 0;
		2229	for (bit = 0x40000000U; bit; bit >>= 1)
		2230	{
		2231	rl.rlim_max |= bit;
		2232	rl.rlim_cur = rl.rlim_max;
		2233
		2234	/* nevr decrease the hard limit */
		2235	if (rl.rlim_max < orig_rlim_max)
		2236	break;
		2237
		2238	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2239	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2240	}
		2241
		2242	/* now, raise the soft limit to the max permitted */
		2243	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2244	{
		2245	rl.rlim_cur = rl.rlim_max;
		2246	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2247	errno = EPERM;
		2248	}
		2249	}
		2250	#endif
		2251	fail:
		2252	XSRETURN_UNDEF;
		2253	}
1522		2254
1523	void _on_next_submit (SV *cb)	2255	void _on_next_submit (SV *cb)
1524	CODE:	2256	CODE:
1525	SvREFCNT_dec (on_next_submit);	2257	SvREFCNT_dec (on_next_submit);
1526	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2258	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1527		2259
1528	PROTOTYPES: DISABLE	2260	PROTOTYPES: DISABLE
1529		2261
		2262	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2263
		2264	BOOT:
		2265	{
		2266	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2267	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2268	}
		2269
		2270	void
		2271	DESTROY (SV *self)
		2272	CODE:
		2273	{
		2274	aio_wd wd = SvAIO_WD (self);
		2275	#if HAVE_AT
		2276	{
		2277	SV *callback = &PL_sv_undef;
		2278	dREQ; /* clobbers next_pri :/ */
		2279	next_pri = req->pri; /* restore next_pri */
		2280	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2281	req->type = EIO_WD_CLOSE;
		2282	req->wd = wd;
		2283	REQ_SEND;
		2284	}
		2285	#else
		2286	eio_wd_close_sync (wd);
		2287	#endif
		2288	}
		2289
1530	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2290	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1531		2291
1532	void	2292	void
1533	cancel (aio_req_ornot req)	2293	cancel (aio_req_ornot req)
1534	CODE:	2294	CODE:
1535	eio_cancel (req);	2295	eio_cancel (req);
1536		2296
1537	void	2297	void
1538	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2298	cb (aio_req_ornot req, SV *callback = NO_INIT)
1539	PPCODE:	2299	PPCODE:
1540	{	2300	{
1541	if (GIMME_V != G_VOID)	2301	if (GIMME_V != G_VOID)
1542	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2302	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1543		2303
1544	if (items > 1)	2304	if (items > 1)
1545	{	2305	{
1546	SV *cb_cv =get_cb (callback);	2306	SV *cb_cv = get_cb (callback);
1547		2307
1548	SvREFCNT_dec (req->callback);	2308	SvREFCNT_dec (req->callback);
1549	req->callback = SvREFCNT_inc (cb_cv);	2309	req->callback = SvREFCNT_inc (cb_cv);
1550	}	2310	}
1551	}	2311	}
…		…
1608	limit (aio_req grp, int limit)	2368	limit (aio_req grp, int limit)
1609	CODE:	2369	CODE:
1610	eio_grp_limit (grp, limit);	2370	eio_grp_limit (grp, limit);
1611		2371
1612	void	2372	void
1613	feed (aio_req grp, SV *callback=&PL_sv_undef)	2373	feed (aio_req grp, SV *callback = &PL_sv_undef)
1614	CODE:	2374	CODE:
1615	{	2375	{
1616	SvREFCNT_dec (grp->sv2);	2376	SvREFCNT_dec (grp->sv2);
1617	grp->sv2 = newSVsv (callback);	2377	grp->sv2 = newSVsv (callback);
1618	grp->feed = aio_grp_feed;	2378	grp->feed = aio_grp_feed;

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