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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.180 by root, Fri Feb 11 00:05:17 2011 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_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_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/config.h"
124	#include "libeio/eio.h"	135	#include "libeio/eio.h"
125		136
126	#ifndef POSIX_FADV_NORMAL	137	static int req_invoke (eio_req *req);
127	# define POSIX_FADV_NORMAL 0	138	#define EIO_FINISH(req) req_invoke (req)
128	#endif	139	static void req_destroy (eio_req *grp);
129	#ifndef POSIX_FADV_SEQUENTIAL	140	#define EIO_DESTROY(req) req_destroy (req)
130	# define POSIX_FADV_SEQUENTIAL 0	141
131	#endif	142	#include "libeio/eio.c"
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		143
145	#if !HAVE_POSIX_FADVISE	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
150	# define POSIX_MADV_NORMAL 0
151	#endif
152	#ifndef POSIX_MADV_SEQUENTIAL
153	# define POSIX_MADV_SEQUENTIAL 0
154	#endif
155	#ifndef POSIX_MADV_RANDOM
156	# define POSIX_MADV_RANDOM 0
157	#endif
158	#ifndef POSIX_MADV_WILLNEED
159	# define POSIX_MADV_WILLNEED 0
160	#endif
161	#ifndef POSIX_MADV_DONTNEED
162	# define POSIX_MADV_DONTNEED 0
163	#endif
164
165	#if !HAVE_POSIX_MADVISE	148	#if !HAVE_POSIX_MADVISE
166	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	149	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
167	#endif
168
169	#ifndef PROT_NONE
170	# define PROT_NONE 0
171	#endif
172	#ifndef PROT_READ
173	# define PROT_READ 0
174	#endif
175	#ifndef PROT_WRITE
176	# define PROT_READ 0
177	#endif
178	#ifndef PROT_EXEC
179	# define PROT_EXEC 0
180	#endif
181
182	#ifndef ST_NODEV
183	# define ST_NODEV 0
184	#endif
185	#ifndef ST_NOEXEC
186	# define ST_NOEXEC 0
187	#endif
188	#ifndef ST_SYNCHRONOUS
189	# define ST_SYNCHRONOUS 0
190	#endif
191	#ifndef ST_MANDLOCK
192	# define ST_MANDLOCK 0
193	#endif
194	#ifndef ST_WRITE
195	# define ST_WRITE 0
196	#endif
197	#ifndef ST_APPEND
198	# define ST_APPEND 0
199	#endif
200	#ifndef ST_IMMUTABLE
201	# define ST_IMMUTABLE 0
202	#endif
203	#ifndef ST_NOATIME
204	# define ST_NOATIME 0
205	#endif
206	#ifndef ST_NODIRATIME
207	# define ST_NODIRATIME 0
208	#endif
209	#ifndef ST_RELATIME
210	# define ST_RELATIME 0
211	#endif
212
213	#ifndef S_IFIFO
214	# define S_IFIFO 0
215	#endif
216	#ifndef S_IFCHR
217	# define S_IFCHR 0
218	#endif
219	#ifndef S_IFBLK
220	# define S_IFBLK 0
221	#endif
222	#ifndef S_IFLNK
223	# define S_IFLNK 0
224	#endif
225	#ifndef S_IFREG
226	# define S_IFREG 0
227	#endif
228	#ifndef S_IFDIR
229	# define S_IFDIR 0
230	#endif
231	#ifndef S_IFWHT
232	# define S_IFWHT 0
233	#endif
234	#ifndef S_IFSOCK
235	# define S_IFSOCK 0
236	#endif	150	#endif
237		151
238	#ifndef MAP_ANONYMOUS	152	#ifndef MAP_ANONYMOUS
239	# ifdef MAP_ANON	153	# ifdef MAP_ANON
240	# define MAP_ANONYMOUS MAP_ANON	154	# define MAP_ANONYMOUS MAP_ANON
241	# else	155	# else
242	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	156	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
243	# endif	157	# endif
244	#endif	158	#endif
245	#ifndef MAP_HUGETLB	159
246	# define MAP_HUGETLB 0	160	/* defines all sorts of constants to 0 unless they are already defined */
247	#endif	161	/* also provides const_iv_ and const_niv_ macros for them */
248	#ifndef MAP_LOCKED	162	#include "def0.h"
249	# define MAP_LOCKED 0
250	#endif
251	#ifndef MAP_NORESERVE
252	# define MAP_NORESERVE 0
253	#endif
254	#ifndef MAP_POPULATE
255	# define MAP_POPULATE 0
256	#endif
257	#ifndef MAP_NONBLOCK
258	# define MAP_NONBLOCK 0
259	#endif
260		163
261	#ifndef makedev	164	#ifndef makedev
262	# define makedev(maj,min) (((maj) << 8) | (min))	165	# define makedev(maj,min) (((maj) << 8) | (min))
263	#endif	166	#endif
264	#ifndef major	167	#ifndef major
…		…
266	#endif	169	#endif
267	#ifndef minor	170	#ifndef minor
268	# define minor(dev) ((dev) & 0xff)	171	# define minor(dev) ((dev) & 0xff)
269	#endif	172	#endif
270		173
271	#ifndef PAGESIZE	174	#if PAGESIZE <= 0
272	# define PAGESIZE sysconf (_SC_PAGESIZE)	175	# define PAGESIZE sysconf (_SC_PAGESIZE)
273	#endif	176	#endif
274		177
275	static int req_invoke (eio_req *req);	178	/*****************************************************************************/
276	#define EIO_FINISH(req) req_invoke (req)	179
277	static void req_destroy (eio_req *grp);	180	#if !_POSIX_MAPPED_FILES
278	#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	/*****************************************************************************/
279		368
280	enum {	369	enum {
281	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	370	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
282	};	371	};
283		372
284	#include "libeio/eio.c"
285
286	typedef eio_req *aio_req;	373	typedef eio_req *aio_req;
287	typedef eio_req *aio_req_ornot;	374	typedef eio_req *aio_req_ornot;
		375	typedef eio_wd aio_wd;
288		376
289	static SV *on_next_submit;	377	static SV *on_next_submit;
290	static int next_pri = EIO_PRI_DEFAULT;	378	static int next_pri = EIO_PRI_DEFAULT;
291	static int max_outstanding;	379	static int max_outstanding;
292		380
293	static s_epipe respipe;	381	static s_epipe respipe;
294		382
295	static void req_destroy (aio_req req);	383	static void req_destroy (aio_req req);
296	static void req_cancel (aio_req req);	384	static void req_cancel (aio_req req);
297		385
298	static void want_poll (void)	386	static void
		387	want_poll (void)
299	{	388	{
300	/* write a dummy byte to the pipe so fh becomes ready */	389	/* write a dummy byte to the pipe so fh becomes ready */
301	s_epipe_signal (&respipe);	390	s_epipe_signal (&respipe);
302	}	391	}
303		392
304	static void done_poll (void)	393	static void
		394	done_poll (void)
305	{	395	{
306	/* read any signals sent by the worker threads */	396	/* read any signals sent by the worker threads */
307	s_epipe_drain (&respipe);	397	s_epipe_drain (&respipe);
308	}	398	}
309		399
310	/* must be called at most once */	400	/* must be called at most once */
		401	static SV *
311	static SV *req_sv (aio_req req, HV *stash)	402	req_sv (aio_req req, HV *stash)
312	{	403	{
313	if (!req->self)	404	if (!req->self)
314	{	405	{
315	req->self = (SV *)newHV ();	406	req->self = (SV *)newHV ();
316	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	407	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
317	}	408	}
318		409
319	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	410	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
320	}	411	}
321		412
322	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)
323	{	421	{
324	MAGIC *mg;	422	MAGIC *mg;
325		423
326	if (!SvROK (sv)	424	if (!SvROK (sv)
		425	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
327	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	426	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
328	&& SvSTASH (SvRV (sv)) != aio_req_stash	427	&& SvSTASH (SvRV (sv)) != aio_req_stash
329	&& !sv_derived_from (sv, "IO::AIO::REQ")))	428	&& !sv_derived_from (sv, "IO::AIO::REQ")))
330	croak ("object of class IO::AIO::REQ expected");	429	croak ("object of class IO::AIO::REQ expected");
331		430
332	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	431	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
333		432
334	return mg ? (aio_req)mg->mg_ptr : 0;	433	return mg ? (aio_req)mg->mg_ptr : 0;
335	}	434	}
336		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
337	static void aio_grp_feed (aio_req grp)	473	aio_grp_feed (aio_req grp)
338	{	474	{
339	if (grp->sv2 && SvOK (grp->sv2))	475	if (grp->sv2 && SvOK (grp->sv2))
340	{	476	{
341	dSP;	477	dSP;
342		478
…		…
350	FREETMPS;	486	FREETMPS;
351	LEAVE;	487	LEAVE;
352	}	488	}
353	}	489	}
354		490
		491	static void
355	static void req_submit (eio_req *req)	492	req_submit (eio_req *req)
356	{	493	{
357	eio_submit (req);	494	eio_submit (req);
358		495
359	if (expect_false (on_next_submit))	496	if (expect_false (on_next_submit))
360	{	497	{
…		…
367	PUTBACK;	504	PUTBACK;
368	call_sv (cb, G_DISCARD | G_EVAL);	505	call_sv (cb, G_DISCARD | G_EVAL);
369	}	506	}
370	}	507	}
371		508
		509	static int
372	static int req_invoke (eio_req *req)	510	req_invoke (eio_req *req)
373	{	511	{
374	if (req->flags & FLAG_SV2_RO_OFF)	512	if (req->flags & FLAG_SV2_RO_OFF)
375	SvREADONLY_off (req->sv2);	513	SvREADONLY_off (req->sv2);
376		514
377	if (!EIO_CANCELLED (req) && req->callback)	515	if (!EIO_CANCELLED (req) && req->callback)
…		…
398	SvREADONLY_on (sv_result);	536	SvREADONLY_on (sv_result);
399	}	537	}
400		538
401	switch (req->type)	539	switch (req->type)
402	{	540	{
		541	case EIO_WD_OPEN:
		542	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		543	break;
		544
403	case EIO_READDIR:	545	case EIO_READDIR:
404	{	546	{
405	SV *rv = &PL_sv_undef;	547	SV *rv = &PL_sv_undef;
406		548
407	if (req->result >= 0)	549	if (req->result >= 0)
…		…
460	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))));
461	}	603	}
462	break;	604	break;
463		605
464	case EIO_OPEN:	606	case EIO_OPEN:
465	{	607	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
466	/* convert fd to fh */
467	SV *fh = &PL_sv_undef;
468
469	if (req->result >= 0)
470	{
471	GV *gv = (GV *)sv_newmortal ();
472	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
473	char sym [64];
474	int symlen;
475
476	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
477	gv_init (gv, aio_stash, sym, symlen, 0);
478
479	symlen = snprintf (
480	sym,
481	sizeof (sym),
482	"%s&=%d",
483	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
484	(int)req->result
485	);
486
487	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
488	fh = (SV *)gv;
489	}
490
491	PUSHs (fh);
492	}
493	break;	608	break;
494		609
495	case EIO_STATVFS:	610	case EIO_STATVFS:
496	case EIO_FSTATVFS:	611	case EIO_FSTATVFS:
497	{	612	{
498	SV *rv = &PL_sv_undef;	613	SV *rv = &PL_sv_undef;
499		614
		615	#ifndef _WIN32
500	if (req->result >= 0)	616	if (req->result >= 0)
501	{	617	{
502	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	618	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
503	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));
504		625
505	rv = sv_2mortal (newRV_noinc ((SV *)hv));	626	rv = sv_2mortal (newRV_noinc ((SV *)hv));
506		627
507	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);
508	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);
…		…
510	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);
511	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);
512	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);
513	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);
514	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);
515	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	636	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
516	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);
517	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);
518	}	639	}
		640	#endif
519		641
520	PUSHs (rv);	642	PUSHs (rv);
521	}	643	}
522		644
523	break;	645	break;
…		…
539	case EIO_NOP:	661	case EIO_NOP:
540	case EIO_BUSY:	662	case EIO_BUSY:
541	break;	663	break;
542		664
543	case EIO_READLINK:	665	case EIO_READLINK:
		666	case EIO_REALPATH:
544	if (req->result > 0)	667	if (req->result > 0)
545	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	668	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
546	break;	669	break;
547		670
548	case EIO_STAT:	671	case EIO_STAT:
549	case EIO_LSTAT:	672	case EIO_LSTAT:
550	case EIO_FSTAT:	673	case EIO_FSTAT:
551	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	674	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		675
552	PL_laststatval = req->result;	676	if (!(PL_laststatval = req->result))
		677	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
553	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	678	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		679
554	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)));
555	break;	685	break;
556		686
557	case EIO_READ:	687	case EIO_READ:
558	{	688	{
559	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));
…		…
562	SvSETMAGIC (req->sv2);	692	SvSETMAGIC (req->sv2);
563	PUSHs (sv_result);	693	PUSHs (sv_result);
564	}	694	}
565	break;	695	break;
566		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
567	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	761	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
568	if (req->result > 0)	762	if (req->result > 0)
569	SvIV_set (sv_result, 0);	763	SvIV_set (sv_result, 0);
570	/* FALLTHROUGH */	764	/* FALLTHROUGH */
571		765
…		…
592	}	786	}
593		787
594	return !!SvTRUE (ERRSV);	788	return !!SvTRUE (ERRSV);
595	}	789	}
596		790
		791	static void
597	static void req_destroy (aio_req req)	792	req_destroy (aio_req req)
598	{	793	{
599	if (req->self)	794	if (req->self)
600	{	795	{
601	sv_unmagic (req->self, PERL_MAGIC_ext);	796	sv_unmagic (req->self, PERL_MAGIC_ext);
602	SvREFCNT_dec (req->self);	797	SvREFCNT_dec (req->self);
603	}	798	}
604		799
605	SvREFCNT_dec (req->sv1);	800	SvREFCNT_dec (req->sv1);
606	SvREFCNT_dec (req->sv2);	801	SvREFCNT_dec (req->sv2);
		802	SvREFCNT_dec (req->sv3);
		803	SvREFCNT_dec (req->sv4);
607	SvREFCNT_dec (req->callback);	804	SvREFCNT_dec (req->callback);
608		805
609	Safefree (req);	806	free (req);
610	}	807	}
611		808
		809	static void
612	static void req_cancel_subs (aio_req grp)	810	req_cancel_subs (aio_req grp)
613	{	811	{
614	aio_req sub;
615
616	if (grp->type != EIO_GROUP)	812	if (grp->type != EIO_GROUP)
617	return;	813	return;
618		814
619	SvREFCNT_dec (grp->sv2);	815	SvREFCNT_dec (grp->sv2);
620	grp->sv2 = 0;	816	grp->sv2 = 0;
621		817
622	eio_grp_cancel (grp);	818	eio_grp_cancel (grp);
623	}	819	}
624		820
625	static void	821	static void ecb_cold
626	create_respipe (void)	822	create_respipe (void)
627	{	823	{
628	if (s_epipe_renew (&respipe))	824	if (s_epipe_renew (&respipe))
629	croak ("IO::AIO: unable to initialize result pipe");	825	croak ("IO::AIO: unable to initialize result pipe");
630	}	826	}
631		827
632	static void poll_wait (void)	828	static void
		829	poll_wait (void)
633	{	830	{
634	while (eio_nreqs ())	831	while (eio_nreqs ())
635	{	832	{
636	int size;	833	int size;
637		834
638	X_LOCK (reslock);	835	X_LOCK (EIO_POOL->reslock);
639	size = res_queue.size;	836	size = EIO_POOL->res_queue.size;
640	X_UNLOCK (reslock);	837	X_UNLOCK (EIO_POOL->reslock);
641		838
642	if (size)	839	if (size)
643	return;	840	return;
644		841
645	etp_maybe_start_thread ();	842	etp_maybe_start_thread (EIO_POOL);
646		843
647	s_epipe_wait (&respipe);	844	s_epipe_wait (&respipe);
648	}	845	}
649	}	846	}
650		847
651	static int poll_cb (void)	848	static int
		849	poll_cb (void)
652	{	850	{
653	for (;;)	851	for (;;)
654	{	852	{
655	int res = eio_poll ();	853	int res = eio_poll ();
656		854
…		…
662		860
663	poll_wait ();	861	poll_wait ();
664	}	862	}
665	}	863	}
666		864
667	static void atfork_child (void)	865	static void ecb_cold
		866	reinit (void)
668	{	867	{
669	create_respipe ();	868	create_respipe ();
670	}
671		869
672	/*****************************************************************************/	870	if (eio_init (want_poll, done_poll) < 0)
673		871	croak ("IO::AIO: unable to initialise eio library");
674	#if !_POSIX_MAPPED_FILES
675	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
676	# define munmap(addr,length) (errno = ENOSYS, -1)
677	#endif
678
679	#if !_POSIX_MEMORY_PROTECTION
680	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
681	# define PROT_NONE 0
682	# define PROT_WRITE 0
683	# define MAP_PRIVATE 0
684	# define MAP_SHARED 0
685	# define MAP_FIXED 0
686	#endif
687
688	#define MMAP_MAGIC PERL_MAGIC_ext
689
690	static int
691	mmap_free (pTHX_ SV *sv, MAGIC *mg)
692	{
693	int old_errno = errno;
694	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
695	errno = old_errno;
696
697	mg->mg_obj = 0; /* just in case */
698
699	SvREADONLY_off (sv);
700
701	if (SvPVX (sv) != mg->mg_ptr)
702	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
703
704	SvCUR_set (sv, 0);
705	SvPVX (sv) = 0;
706	SvOK_off (sv);
707
708	return 0;
709	}	872	}
710
711	static MGVTBL mmap_vtbl = {
712	0, 0, 0, 0, mmap_free
713	};
714		873
715	/*****************************************************************************/	874	/*****************************************************************************/
716		875
717	static SV *	876	static SV *
718	get_cb (SV *cb_sv)	877	get_cb (SV *cb_sv)
719	{	878	{
720	SvGETMAGIC (cb_sv);	879	SvGETMAGIC (cb_sv);
721	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	880	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
722	}	881	}
723		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
724	#define dREQ \	903	#define dREQ \
725	SV *cb_cv; \	904	aio_req req = dreq (callback); \
726	aio_req req; \
727	int req_pri = next_pri; \
728	next_pri = EIO_PRI_DEFAULT; \
729	\
730	cb_cv = get_cb (callback); \
731	\
732	Newz (0, req, 1, eio_req); \
733	if (!req) \
734	croak ("out of memory during eio_req allocation"); \
735	\
736	req->callback = SvREFCNT_inc (cb_cv); \
737	req->pri = req_pri
738		905
739	#define REQ_SEND \	906	#define REQ_SEND \
740	PUTBACK; \	907	PUTBACK; \
741	req_submit (req); \	908	req_submit (req); \
742	SPAGAIN; \	909	SPAGAIN; \
743	\	910	\
744	if (GIMME_V != G_VOID) \	911	if (GIMME_V != G_VOID) \
745	XPUSHs (req_sv (req, aio_req_stash));	912	XPUSHs (req_sv (req, aio_req_stash));
746		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
747	MODULE = IO::AIO PACKAGE = IO::AIO	980	MODULE = IO::AIO PACKAGE = IO::AIO
748		981
749	PROTOTYPES: ENABLE	982	PROTOTYPES: ENABLE
750		983
751	BOOT:	984	BOOT:
…		…
755	IV iv;	988	IV iv;
756	} *civ, const_iv[] = {	989	} *civ, const_iv[] = {
757	# define const_niv(name, value) { # name, (IV) value },	990	# define const_niv(name, value) { # name, (IV) value },
758	# define const_iv(name) { # name, (IV) name },	991	# define const_iv(name) { # name, (IV) name },
759	# 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)
760	const_iv (EXDEV)	997	const_iv (EXDEV)
761	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 */
762	const_iv (O_RDONLY)	1018	const_iv (O_RDONLY)
763	const_iv (O_WRONLY)	1019	const_iv (O_WRONLY)
764	const_iv (O_RDWR)	1020	const_iv (O_RDWR)
765	const_iv (O_CREAT)	1021	const_iv (O_CREAT)
766	const_iv (O_TRUNC)	1022	const_iv (O_TRUNC)
767	const_iv (O_EXCL)	1023	const_iv (O_EXCL)
768	const_iv (O_APPEND)	1024	const_iv (O_APPEND)
		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)
769		1043
770	const_iv (S_IFIFO)	1044	const_iv (S_IFIFO)
771	const_iv (S_IFCHR)	1045	const_iv (S_IFCHR)
772	const_iv (S_IFBLK)	1046	const_iv (S_IFBLK)
773	const_iv (S_IFLNK)	1047	const_iv (S_IFLNK)
774	const_iv (S_IFREG)	1048	const_iv (S_IFREG)
775	const_iv (S_IFDIR)	1049	const_iv (S_IFDIR)
776	const_iv (S_IFWHT)	1050	const_iv (S_IFWHT)
777	const_iv (S_IFSOCK)	1051	const_iv (S_IFSOCK)
778	const_iv (S_IFMT)	1052	const_iv (S_IFMT)
779
780	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
781	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
782	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
783	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
784	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
785	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
786
787	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
788	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
789	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
790	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
791	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
792		1053
793	const_iv (ST_RDONLY)	1054	const_iv (ST_RDONLY)
794	const_iv (ST_NOSUID)	1055	const_iv (ST_NOSUID)
795	const_iv (ST_NODEV)	1056	const_iv (ST_NODEV)
796	const_iv (ST_NOEXEC)	1057	const_iv (ST_NOEXEC)
…		…
806	const_iv (PROT_NONE)	1067	const_iv (PROT_NONE)
807	const_iv (PROT_EXEC)	1068	const_iv (PROT_EXEC)
808	const_iv (PROT_READ)	1069	const_iv (PROT_READ)
809	const_iv (PROT_WRITE)	1070	const_iv (PROT_WRITE)
810		1071
811	/*const_iv (MAP_FIXED)*/
812	const_iv (MAP_PRIVATE)	1072	const_iv (MAP_PRIVATE)
813	const_iv (MAP_SHARED)	1073	const_iv (MAP_SHARED)
		1074	const_iv (MAP_FIXED)
814	const_iv (MAP_ANONYMOUS)	1075	const_iv (MAP_ANONYMOUS)
815		1076
816	/* linuxish */	1077	/* linuxish */
817	const_iv (MAP_HUGETLB)
818	const_iv (MAP_LOCKED)	1078	const_iv (MAP_LOCKED)
819	const_iv (MAP_NORESERVE)	1079	const_iv (MAP_NORESERVE)
820	const_iv (MAP_POPULATE)	1080	const_iv (MAP_POPULATE)
821	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)
		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)
822		1178
823	const_eio (MCL_FUTURE)	1179	const_eio (MCL_FUTURE)
824	const_eio (MCL_CURRENT)	1180	const_eio (MCL_CURRENT)
825		1181
826	const_eio (MS_ASYNC)	1182	const_eio (MS_ASYNC)
…		…
830	const_eio (MT_MODIFY)	1186	const_eio (MT_MODIFY)
831		1187
832	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1188	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
833	const_eio (SYNC_FILE_RANGE_WRITE)	1189	const_eio (SYNC_FILE_RANGE_WRITE)
834	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)
835		1202
836	const_eio (READDIR_DENTS)	1203	const_eio (READDIR_DENTS)
837	const_eio (READDIR_DIRS_FIRST)	1204	const_eio (READDIR_DIRS_FIRST)
838	const_eio (READDIR_STAT_ORDER)	1205	const_eio (READDIR_STAT_ORDER)
839	const_eio (READDIR_FOUND_UNKNOWN)	1206	const_eio (READDIR_FOUND_UNKNOWN)
…		…
850	};	1217	};
851		1218
852	aio_stash = gv_stashpv ("IO::AIO" , 1);	1219	aio_stash = gv_stashpv ("IO::AIO" , 1);
853	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1220	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
854	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);
855		1223
856	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--)
857	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1225	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
858		1226
859	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1227	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
860		1228
861	create_respipe ();	1229	reinit ();
862
863	if (eio_init (want_poll, done_poll) < 0)
864	croak ("IO::AIO: unable to initialise eio library");
865
866	/* atfork child called in fifo order, so before eio's handler */
867	X_THREAD_ATFORK (0, 0, atfork_child);
868	}	1230	}
869		1231
870	void	1232	void
		1233	reinit ()
		1234	PROTOTYPE:
		1235
		1236	void
871	max_poll_reqs (int nreqs)	1237	max_poll_reqs (unsigned int nreqs)
872	PROTOTYPE: $	1238	PROTOTYPE: $
873	CODE:	1239	CODE:
874	eio_set_max_poll_reqs (nreqs);	1240	eio_set_max_poll_reqs (nreqs);
875		1241
876	void	1242	void
…		…
878	PROTOTYPE: $	1244	PROTOTYPE: $
879	CODE:	1245	CODE:
880	eio_set_max_poll_time (nseconds);	1246	eio_set_max_poll_time (nseconds);
881		1247
882	void	1248	void
883	min_parallel (int nthreads)	1249	min_parallel (unsigned int nthreads)
884	PROTOTYPE: $	1250	PROTOTYPE: $
885	CODE:	1251	CODE:
886	eio_set_min_parallel (nthreads);	1252	eio_set_min_parallel (nthreads);
887		1253
888	void	1254	void
889	max_parallel (int nthreads)	1255	max_parallel (unsigned int nthreads)
890	PROTOTYPE: $	1256	PROTOTYPE: $
891	CODE:	1257	CODE:
892	eio_set_max_parallel (nthreads);	1258	eio_set_max_parallel (nthreads);
893		1259
894	void	1260	void
895	max_idle (int nthreads)	1261	max_idle (unsigned int nthreads)
896	PROTOTYPE: $	1262	PROTOTYPE: $
897	CODE:	1263	CODE:
898	eio_set_max_idle (nthreads);	1264	eio_set_max_idle (nthreads);
899		1265
900	void	1266	void
		1267	idle_timeout (unsigned int seconds)
		1268	PROTOTYPE: $
		1269	CODE:
		1270	eio_set_idle_timeout (seconds);
		1271
		1272	void
901	max_outstanding (int maxreqs)	1273	max_outstanding (unsigned int maxreqs)
902	PROTOTYPE: $	1274	PROTOTYPE: $
903	CODE:	1275	CODE:
904	max_outstanding = maxreqs;	1276	max_outstanding = maxreqs;
905		1277
906	void	1278	void
907	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1279	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
908	PPCODE:	1280	PPCODE:
909	{	1281	{
910	dREQ;	1282	dREQ;
911		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
912	req->type = EIO_OPEN;	1296	req->type = EIO_OPEN;
913	req->sv1 = newSVsv (pathname);	1297	req_set_path1 (req, pathname);
914	req->ptr1 = SvPVbyte_nolen (req->sv1);
915	req->int1 = flags;	1298	req->int1 = flags;
916	req->int2 = mode;	1299	req->int2 = mode;
917		1300
918	REQ_SEND;	1301	REQ_SEND;
919	}	1302	}
920		1303
921	void	1304	void
922	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1305	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
923	ALIAS:	1306	ALIAS:
924	aio_fsync = EIO_FSYNC	1307	aio_fsync = EIO_FSYNC
925	aio_fdatasync = EIO_FDATASYNC	1308	aio_fdatasync = EIO_FDATASYNC
		1309	aio_syncfs = EIO_SYNCFS
926	PPCODE:	1310	PPCODE:
927	{	1311	{
928	int fd = s_fileno_croak (fh, 0);	1312	int fd = s_fileno_croak (fh, 0);
929	dREQ;	1313	dREQ;
930		1314
931	req->type = ix;	1315	req->type = ix;
932	req->sv1 = newSVsv (fh);	1316	req->sv1 = newSVsv (fh);
933	req->int1 = fd;	1317	req->int1 = fd;
934		1318
935	REQ_SEND (req);	1319	REQ_SEND;
936	}	1320	}
937		1321
938	void	1322	void
939	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)
940	PPCODE:	1324	PPCODE:
941	{	1325	{
942	int fd = s_fileno_croak (fh, 0);	1326	int fd = s_fileno_croak (fh, 0);
943	dREQ;	1327	dREQ;
944		1328
945	req->type = EIO_SYNC_FILE_RANGE;	1329	req->type = EIO_SYNC_FILE_RANGE;
946	req->sv1 = newSVsv (fh);	1330	req->sv1 = newSVsv (fh);
947	req->int1 = fd;	1331	req->int1 = fd;
948	req->offs = offset;	1332	req->offs = offset;
949	req->size = nbytes;	1333	req->size = nbytes;
950	req->int2 = flags;	1334	req->int2 = flags;
951		1335
952	REQ_SEND (req);	1336	REQ_SEND;
953	}	1337	}
954		1338
955	void	1339	void
956	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)
957	PPCODE:	1341	PPCODE:
958	{	1342	{
959	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
960	int fd = s_fileno_croak (fh, 0);	1343	int fd = s_fileno_croak (fh, 0);
961	dREQ;	1344	dREQ;
962		1345
963	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))
964	{	1365	{
965	int pipefd [2];	1366	int pipefd [2];
966		1367
		1368	if (
		1369	#ifdef _WIN32
		1370	_pipe (pipefd, 1, _O_BINARY) < 0
		1371	#else
967	if (pipe (pipefd) < 0	1372	pipe (pipefd) < 0
968	|| close (pipefd [1]) < 0
969	|| 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	)
970	abort (); /*D*/	1377	abort (); /*D*/
971		1378
972	close_pipe = pipefd [0];	1379	close_fd = pipefd [0];
973	}	1380	}
974		1381
975	req->type = EIO_DUP2;	1382	req->type = EIO_DUP2;
976	req->int1 = close_pipe;	1383	req->int1 = close_fd;
977	req->sv2 = newSVsv (fh);	1384	req->sv2 = newSVsv (fh);
978	req->int2 = fd;	1385	req->int2 = fd;
979		1386
980	REQ_SEND (req);	1387	REQ_SEND;
981	}	1388	}
982		1389
983	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
984	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)
985	ALIAS:	1408	ALIAS:
986	aio_read = EIO_READ	1409	aio_read = EIO_READ
987	aio_write = EIO_WRITE	1410	aio_write = EIO_WRITE
988	PPCODE:	1411	PPCODE:
989	{	1412	{
…		…
1005	len = svlen - dataoffset;	1428	len = svlen - dataoffset;
1006	}	1429	}
1007	else	1430	else
1008	{	1431	{
1009	/* read: check type and grow scalar as necessary */	1432	/* read: check type and grow scalar as necessary */
1010	SvUPGRADE (data, SVt_PV);	1433	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1011	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");
1012	}	1437	}
1013		1438
1014	{	1439	{
1015	dREQ;	1440	dREQ;
1016		1441
…		…
1032	REQ_SEND;	1457	REQ_SEND;
1033	}	1458	}
1034	}	1459	}
1035		1460
1036	void	1461	void
1037	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1462	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1463	ALIAS:
		1464	aio_ioctl = EIO_IOCTL
		1465	aio_fcntl = EIO_FCNTL
1038	PPCODE:	1466	PPCODE:
1039	{	1467	{
1040	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	{
1041	dREQ;	1508	dREQ;
1042		1509
1043	req->type = EIO_READLINK;	1510	req->type = ix;
1044	req->sv1 = newSVsv (path);	1511	req_set_path1 (req, pathname);
1045	req->ptr1 = SvPVbyte_nolen (req->sv1);
1046		1512
1047	REQ_SEND;	1513	REQ_SEND;
1048	}	1514	}
1049		1515
1050	void	1516	void
1051	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)
1052	PPCODE:	1518	PPCODE:
1053	{	1519	{
1054	int ifd = s_fileno_croak (in_fh , 0);	1520	int ifd = s_fileno_croak (in_fh , 0);
1055	int ofd = s_fileno_croak (out_fh, 1);	1521	int ofd = s_fileno_croak (out_fh, 1);
1056	dREQ;	1522	dREQ;
1057		1523
1058	req->type = EIO_SENDFILE;	1524	req->type = EIO_SENDFILE;
1059	req->sv1 = newSVsv (out_fh);	1525	req->sv1 = newSVsv (out_fh);
1060	req->int1 = ofd;	1526	req->int1 = ofd;
…		…
1065		1531
1066	REQ_SEND;	1532	REQ_SEND;
1067	}	1533	}
1068		1534
1069	void	1535	void
1070	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)
1071	PPCODE:	1537	PPCODE:
1072	{	1538	{
1073	int fd = s_fileno_croak (fh, 0);	1539	int fd = s_fileno_croak (fh, 0);
1074	dREQ;	1540	dREQ;
1075		1541
1076	req->type = EIO_READAHEAD;	1542	req->type = EIO_READAHEAD;
1077	req->sv1 = newSVsv (fh);	1543	req->sv1 = newSVsv (fh);
1078	req->int1 = fd;	1544	req->int1 = fd;
…		…
1081		1547
1082	REQ_SEND;	1548	REQ_SEND;
1083	}	1549	}
1084		1550
1085	void	1551	void
1086	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1552	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1087	ALIAS:	1553	ALIAS:
1088	aio_stat = EIO_STAT	1554	aio_stat = EIO_STAT
1089	aio_lstat = EIO_LSTAT	1555	aio_lstat = EIO_LSTAT
1090	aio_statvfs = EIO_STATVFS	1556	aio_statvfs = EIO_STATVFS
1091	PPCODE:	1557	PPCODE:
1092	{	1558	{
1093	dREQ;	1559	dREQ;
1094		1560
1095	req->sv1 = newSVsv (fh_or_path);	1561	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1096
1097	if (SvPOK (req->sv1))
1098	{
1099	req->type = ix;
1100	req->ptr1 = SvPVbyte_nolen (req->sv1);
1101	}
1102	else
1103	{
1104	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1105	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1106	}
1107		1562
1108	REQ_SEND;	1563	REQ_SEND;
1109	}	1564	}
1110		1565
1111	UV	1566	UV
1112	major (UV dev)	1567	major (UV dev)
1113	ALIAS:	1568	ALIAS:
1114	minor = 1	1569	minor = 1
1115	CODE:	1570	CODE:
1116	RETVAL = ix ? major (dev) : minor (dev);	1571	RETVAL = ix ? minor (dev) : major (dev);
1117	OUTPUT:	1572	OUTPUT:
1118	RETVAL	1573	RETVAL
1119		1574
1120	UV	1575	UV
1121	makedev (UV maj, UV min)	1576	makedev (UV maj, UV min)
…		…
1123	RETVAL = makedev (maj, min);	1578	RETVAL = makedev (maj, min);
1124	OUTPUT:	1579	OUTPUT:
1125	RETVAL	1580	RETVAL
1126		1581
1127	void	1582	void
1128	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)
1129	PPCODE:	1584	PPCODE:
1130	{	1585	{
1131	dREQ;	1586	dREQ;
1132		1587
1133	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1588	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1134	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1589	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1135	req->sv1 = newSVsv (fh_or_path);	1590	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1136
1137	if (SvPOK (req->sv1))
1138	{
1139	req->type = EIO_UTIME;
1140	req->ptr1 = SvPVbyte_nolen (req->sv1);
1141	}
1142	else
1143	{
1144	req->type = EIO_FUTIME;
1145	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1146	}
1147		1591
1148	REQ_SEND;	1592	REQ_SEND;
1149	}	1593	}
1150		1594
1151	void	1595	void
1152	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)
1153	PPCODE:	1597	PPCODE:
1154	{	1598	{
1155	dREQ;	1599	dREQ;
1156		1600
1157	req->sv1 = newSVsv (fh_or_path);
1158	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1601	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1159		1602	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1160	if (SvPOK (req->sv1))
1161	{
1162	req->type = EIO_TRUNCATE;
1163	req->ptr1 = SvPVbyte_nolen (req->sv1);
1164	}
1165	else
1166	{
1167	req->type = EIO_FTRUNCATE;
1168	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1169	}
1170		1603
1171	REQ_SEND;	1604	REQ_SEND;
1172	}	1605	}
1173		1606
1174	void	1607	void
1175	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)
1176	ALIAS:
1177	aio_chmod = EIO_CHMOD
1178	aio_mkdir = EIO_MKDIR
1179	PPCODE:	1609	PPCODE:
1180	{	1610	{
1181	dREQ;	1611	dREQ;
1182		1612
1183	req->int2 = mode;	1613	req->int2 = mode;
1184	req->sv1 = newSVsv (fh_or_path);	1614	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1185
1186	if (SvPOK (req->sv1))
1187	{
1188	req->type = ix;
1189	req->ptr1 = SvPVbyte_nolen (req->sv1);
1190	}
1191	else
1192	{
1193	req->type = EIO_FCHMOD;
1194	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1195	}
1196		1615
1197	REQ_SEND;	1616	REQ_SEND;
1198	}	1617	}
1199		1618
1200	void	1619	void
1201	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)
1202	PPCODE:	1621	PPCODE:
1203	{	1622	{
1204	dREQ;	1623	dREQ;
1205		1624
1206	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1625	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1207	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1626	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1208	req->sv1 = newSVsv (fh_or_path);	1627	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1209
1210	if (SvPOK (req->sv1))
1211	{
1212	req->type = EIO_CHOWN;
1213	req->ptr1 = SvPVbyte_nolen (req->sv1);
1214	}
1215	else
1216	{
1217	req->type = EIO_FCHOWN;
1218	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1219	}
1220		1628
1221	REQ_SEND;	1629	REQ_SEND;
1222	}	1630	}
1223		1631
1224	void	1632	void
1225	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1633	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1226	PPCODE:	1634	PPCODE:
1227	{	1635	{
1228	dREQ;	1636	dREQ;
1229		1637
1230	req->type = EIO_READDIR;	1638	req->type = EIO_READDIR;
1231	req->sv1 = newSVsv (pathname);
1232	req->ptr1 = SvPVbyte_nolen (req->sv1);
1233	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1639	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1234		1640
1235	if (flags & EIO_READDIR_DENTS)	1641	if (flags & EIO_READDIR_DENTS)
1236	req->int1 |= EIO_READDIR_CUSTOM2;	1642	req->int1 |= EIO_READDIR_CUSTOM2;
1237		1643
		1644	req_set_path1 (req, pathname);
		1645
1238	REQ_SEND;	1646	REQ_SEND;
1239	}	1647	}
1240		1648
1241	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
1242	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1663	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1243	ALIAS:	1664	ALIAS:
1244	aio_unlink = EIO_UNLINK	1665	aio_unlink = EIO_UNLINK
1245	aio_rmdir = EIO_RMDIR	1666	aio_rmdir = EIO_RMDIR
1246	aio_readdir = EIO_READDIR	1667	aio_readdir = EIO_READDIR
1247	PPCODE:	1668	PPCODE:
1248	{	1669	{
1249	dREQ;	1670	dREQ;
1250		1671
1251	req->type = ix;	1672	req->type = ix;
1252	req->sv1 = newSVsv (pathname);	1673	req_set_path1 (req, pathname);
1253	req->ptr1 = SvPVbyte_nolen (req->sv1);
1254		1674
1255	REQ_SEND;	1675	REQ_SEND;
1256	}	1676	}
1257		1677
1258	void	1678	void
1259	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1679	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1260	ALIAS:	1680	ALIAS:
1261	aio_link = EIO_LINK	1681	aio_link = EIO_LINK
1262	aio_symlink = EIO_SYMLINK	1682	aio_symlink = EIO_SYMLINK
1263	aio_rename = EIO_RENAME	1683	aio_rename = EIO_RENAME
1264	PPCODE:	1684	PPCODE:
1265	{	1685	{
		1686	eio_wd wd2 = 0;
1266	dREQ;	1687	dREQ;
1267		1688
1268	req->type = ix;	1689	req->type = ix;
1269	req->sv1 = newSVsv (oldpath);	1690	req_set_path1 (req, oldpath);
1270	req->ptr1 = SvPVbyte_nolen (req->sv1);	1691	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1271	req->sv2 = newSVsv (newpath);	1692	req->int3 = (long)wd2;
1272	req->ptr2 = SvPVbyte_nolen (req->sv2);
1273		1693
1274	REQ_SEND;	1694	REQ_SEND;
1275	}	1695	}
1276		1696
1277	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
1278	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)
1279	PPCODE:	1715	PPCODE:
1280	{	1716	{
1281	dREQ;	1717	dREQ;
1282		1718
1283	req->type = EIO_MKNOD;	1719	req->type = EIO_MKNOD;
1284	req->sv1 = newSVsv (pathname);
1285	req->ptr1 = SvPVbyte_nolen (req->sv1);
1286	req->int2 = (mode_t)mode;	1720	req->int2 = (mode_t)mode;
1287	req->offs = dev;	1721	req->offs = dev;
		1722	req_set_path1 (req, pathname);
1288		1723
1289	REQ_SEND;	1724	REQ_SEND;
1290	}	1725	}
1291		1726
1292	void	1727	void
1293	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)
1294	ALIAS:	1729	ALIAS:
1295	aio_mtouch = EIO_MTOUCH	1730	aio_mtouch = EIO_MTOUCH
1296	aio_msync = EIO_MSYNC	1731	aio_msync = EIO_MSYNC
1297	PPCODE:	1732	PPCODE:
1298	{	1733	{
1299	STRLEN svlen;	1734	STRLEN svlen;
1300	char *svptr = SvPVbyte (data, svlen);	1735	char *svptr = SvPVbyte (data, svlen);
1301	UV len = SvUV (length);	1736	UV len = SvUV (length);
		1737
		1738	if (flags < 0)
		1739	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1302		1740
1303	if (offset < 0)	1741	if (offset < 0)
1304	offset += svlen;	1742	offset += svlen;
1305		1743
1306	if (offset < 0 || offset > svlen)	1744	if (offset < 0 || offset > svlen)
…		…
1321	REQ_SEND;	1759	REQ_SEND;
1322	}	1760	}
1323	}	1761	}
1324		1762
1325	void	1763	void
1326	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1764	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1327	PPCODE:	1765	PPCODE:
1328	{	1766	{
1329	STRLEN svlen;	1767	STRLEN svlen;
1330	char *svptr = SvPVbyte (data, svlen);	1768	char *svptr = SvPVbyte (data, svlen);
1331	UV len = SvUV (length);	1769	UV len = SvUV (length);
…		…
1350	REQ_SEND;	1788	REQ_SEND;
1351	}	1789	}
1352	}	1790	}
1353		1791
1354	void	1792	void
1355	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1793	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1356	PPCODE:	1794	PPCODE:
1357	{	1795	{
1358	dREQ;	1796	dREQ;
1359		1797
1360	req->type = EIO_MLOCKALL;	1798	req->type = EIO_MLOCKALL;
…		…
1362		1800
1363	REQ_SEND;	1801	REQ_SEND;
1364	}	1802	}
1365		1803
1366	void	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
1367	aio_busy (double delay, SV *callback=&PL_sv_undef)	1866	aio_busy (double delay, SV *callback = &PL_sv_undef)
1368	PPCODE:	1867	PPCODE:
1369	{	1868	{
1370	dREQ;	1869	dREQ;
1371		1870
1372	req->type = EIO_BUSY;	1871	req->type = EIO_BUSY;
…		…
1374		1873
1375	REQ_SEND;	1874	REQ_SEND;
1376	}	1875	}
1377		1876
1378	void	1877	void
1379	aio_group (SV *callback=&PL_sv_undef)	1878	aio_group (SV *callback = &PL_sv_undef)
1380	PPCODE:	1879	PPCODE:
1381	{	1880	{
1382	dREQ;	1881	dREQ;
1383		1882
1384	req->type = EIO_GROUP;	1883	req->type = EIO_GROUP;
1385		1884
		1885	PUTBACK;
1386	req_submit (req);	1886	req_submit (req);
		1887	SPAGAIN;
		1888
1387	XPUSHs (req_sv (req, aio_grp_stash));	1889	XPUSHs (req_sv (req, aio_grp_stash));
1388	}	1890	}
1389		1891
1390	void	1892	void
1391	aio_nop (SV *callback=&PL_sv_undef)	1893	aio_nop (SV *callback = &PL_sv_undef)
1392	ALIAS:	1894	ALIAS:
1393	aio_nop = EIO_NOP	1895	aio_nop = EIO_NOP
1394	aio_sync = EIO_SYNC	1896	aio_sync = EIO_SYNC
1395	PPCODE:	1897	PPCODE:
1396	{	1898	{
…		…
1400		1902
1401	REQ_SEND;	1903	REQ_SEND;
1402	}	1904	}
1403		1905
1404	int	1906	int
1405	aioreq_pri (int pri = 0)	1907	aioreq_pri (int pri = NO_INIT)
1406	CODE:	1908	CODE:
1407	RETVAL = next_pri;	1909	RETVAL = next_pri;
1408	if (items > 0)	1910	if (items > 0)
1409	{	1911	{
1410	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1912	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1492	CODE:	1994	CODE:
1493	RETVAL = posix_fadvise (fh, offset, length, advice);	1995	RETVAL = posix_fadvise (fh, offset, length, advice);
1494	OUTPUT:	1996	OUTPUT:
1495	RETVAL	1997	RETVAL
1496		1998
1497	ssize_t	1999	IV
1498	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)
1499	CODE:	2001	CODE:
1500	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2002	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1501	OUTPUT:	2003	OUTPUT:
1502	RETVAL	2004	RETVAL
1503		2005
1504	void	2006	void
1505	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)
1506	PPCODE:	2008	PPCODE:
1507	sv_unmagic (scalar, MMAP_MAGIC);	2009	sv_clear_foreign (scalar);
1508	{	2010	{
1509	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;
1510	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2012	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1511	if (addr == (void *)-1)	2013	if (addr == (void *)-1)
1512	XSRETURN_NO;	2014	XSRETURN_NO;
1513		2015
1514	sv_force_normal (scalar);	2016	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1515
1516	/* we store the length in mg_obj, as namlen is I32 :/ */
1517	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1518	->mg_obj = (SV *)length;
1519
1520	SvUPGRADE (scalar, SVt_PV); /* nop... */
1521		2017
1522	if (!(prot & PROT_WRITE))	2018	if (!(prot & PROT_WRITE))
1523	SvREADONLY_on (scalar);	2019	SvREADONLY_on (scalar);
1524		2020
1525	if (SvLEN (scalar))
1526	Safefree (SvPVX (scalar));
1527
1528	SvPVX (scalar) = (char *)addr;
1529	SvCUR_set (scalar, length);
1530	SvLEN_set (scalar, 0);
1531	SvPOK_only (scalar);
1532
1533	XSRETURN_YES;	2021	XSRETURN_YES;
1534	}	2022	}
1535		2023
1536	void	2024	void
1537	munmap (SV *scalar)	2025	munmap (SV *scalar)
1538	CODE:	2026	CODE:
1539	sv_unmagic (scalar, MMAP_MAGIC);	2027	sv_clear_foreign (scalar);
1540		2028
1541	int	2029	int
1542	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2030	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1543	ALIAS:	2031	ALIAS:
1544	mprotect = 1	2032	mprotect = 1
1545	CODE:	2033	CODE:
1546	{	2034	{
1547	STRLEN svlen;	2035	STRLEN svlen;
1548	void *addr = SvPVbyte (scalar, svlen);	2036	void *addr = SvPVbyte (scalar, svlen);
1549	size_t len = SvUV (length);	2037	STRLEN len = SvUV (length);
1550		2038
1551	if (offset < 0)	2039	if (offset < 0)
1552	offset += svlen;	2040	offset += svlen;
1553		2041
1554	if (offset < 0 || offset > svlen)	2042	if (offset < 0 || offset > svlen)
…		…
1568	}	2056	}
1569	OUTPUT:	2057	OUTPUT:
1570	RETVAL	2058	RETVAL
1571		2059
1572	int	2060	int
1573	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2061	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1574	CODE:	2062	CODE:
1575	{	2063	{
1576	STRLEN svlen;	2064	STRLEN svlen;
1577	void *addr = SvPVbyte (scalar, svlen);	2065	void *addr = SvPVbyte (scalar, svlen);
1578	size_t len = SvUV (length);	2066	size_t len = SvUV (length);
1579		2067
1580	if (offset < 0)	2068	if (offset < 0)
1581	offset += svlen;	2069	offset += svlen;
1582		2070
…		…
1589	addr = (void *)(((intptr_t)addr) + offset);	2077	addr = (void *)(((intptr_t)addr) + offset);
1590	eio_page_align (&addr, &len);	2078	eio_page_align (&addr, &len);
1591	#if _POSIX_MEMLOCK_RANGE	2079	#if _POSIX_MEMLOCK_RANGE
1592	RETVAL = munlock (addr, len);	2080	RETVAL = munlock (addr, len);
1593	#else	2081	#else
1594	RETVAL = ((errno = ENOSYS), -1);	2082	RETVAL = EIO_ENOSYS ();
1595	#endif	2083	#endif
1596	}	2084	}
1597	OUTPUT:	2085	OUTPUT:
1598	RETVAL	2086	RETVAL
1599		2087
…		…
1601	munlockall ()	2089	munlockall ()
1602	CODE:	2090	CODE:
1603	#if _POSIX_MEMLOCK	2091	#if _POSIX_MEMLOCK
1604	munlockall ();	2092	munlockall ();
1605	#else	2093	#else
1606	RETVAL = -1;	2094	RETVAL = EIO_ENOSYS ();
1607	errno = ENOSYS;
1608	#endif	2095	#endif
1609	OUTPUT:	2096	OUTPUT:
1610	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	}
1611		2254
1612	void _on_next_submit (SV *cb)	2255	void _on_next_submit (SV *cb)
1613	CODE:	2256	CODE:
1614	SvREFCNT_dec (on_next_submit);	2257	SvREFCNT_dec (on_next_submit);
1615	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2258	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1616		2259
1617	PROTOTYPES: DISABLE	2260	PROTOTYPES: DISABLE
1618		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
1619	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2290	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1620		2291
1621	void	2292	void
1622	cancel (aio_req_ornot req)	2293	cancel (aio_req_ornot req)
1623	CODE:	2294	CODE:
1624	eio_cancel (req);	2295	eio_cancel (req);
1625		2296
1626	void	2297	void
1627	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2298	cb (aio_req_ornot req, SV *callback = NO_INIT)
1628	PPCODE:	2299	PPCODE:
1629	{	2300	{
1630	if (GIMME_V != G_VOID)	2301	if (GIMME_V != G_VOID)
1631	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);
1632		2303
1633	if (items > 1)	2304	if (items > 1)
1634	{	2305	{
1635	SV *cb_cv =get_cb (callback);	2306	SV *cb_cv = get_cb (callback);
1636		2307
1637	SvREFCNT_dec (req->callback);	2308	SvREFCNT_dec (req->callback);
1638	req->callback = SvREFCNT_inc (cb_cv);	2309	req->callback = SvREFCNT_inc (cb_cv);
1639	}	2310	}
1640	}	2311	}
…		…
1697	limit (aio_req grp, int limit)	2368	limit (aio_req grp, int limit)
1698	CODE:	2369	CODE:
1699	eio_grp_limit (grp, limit);	2370	eio_grp_limit (grp, limit);
1700		2371
1701	void	2372	void
1702	feed (aio_req grp, SV *callback=&PL_sv_undef)	2373	feed (aio_req grp, SV *callback = &PL_sv_undef)
1703	CODE:	2374	CODE:
1704	{	2375	{
1705	SvREFCNT_dec (grp->sv2);	2376	SvREFCNT_dec (grp->sv2);
1706	grp->sv2 = newSVsv (callback);	2377	grp->sv2 = newSVsv (callback);
1707	grp->feed = aio_grp_feed;	2378	grp->feed = aio_grp_feed;

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