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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.175 by root, Wed Dec 1 04:43:12 2010 UTC vs.
Revision 1.256 by root, Tue Feb 20 06:54:46 2018 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
8
9	#include "schmorp.h"
10		8
11	#include <stddef.h>	9	#include <stddef.h>
12	#include <stdlib.h>	10	#include <stdlib.h>
13	#include <errno.h>	11	#include <errno.h>
14	#include <sys/types.h>	12	#include <sys/types.h>
15	#include <sys/stat.h>	13	#include <sys/stat.h>
16	#include <sys/statvfs.h>
17	#include <limits.h>	14	#include <limits.h>
18	#include <fcntl.h>	15	#include <fcntl.h>
19	#include <sched.h>	16	#include <sched.h>
20		17
21	#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES	18	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22	# include <sys/mman.h>	19	# include <sys/mman.h>
		20	#endif
		21
		22	/* the incompetent fool that created musl keeps __linux__, refuses
		23	* to implement any linux standard apis, and also has no way to test
		24	* for his broken iplementation. don't complain to me if this fails
		25	* for you.
		26	*/
		27	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		28	# include <linux/fs.h>
		29	# ifdef FS_IOC_FIEMAP
		30	# include <linux/types.h>
		31	# include <linux/fiemap.h>
		32	# define HAVE_FIEMAP 1
		33	# endif
23	#endif	34	#endif
24		35
25	/* perl namespace pollution */	36	/* perl namespace pollution */
26	#undef VERSION	37	#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		38
77	/* perl stupidly overrides readdir and maybe others */	39	/* perl stupidly overrides readdir and maybe others */
78	/* with thread-unsafe versions, imagine that :( */	40	/* with thread-unsafe versions, imagine that :( */
79	#undef readdir	41	#undef readdir
80	#undef opendir	42	#undef opendir
81	#undef closedir	43	#undef closedir
82		44
		45	#ifdef _WIN32
		46
		47	// perl overrides all those nice libc functions
		48
		49	#undef malloc
		50	#undef free
		51	#undef open
		52	#undef read
		53	#undef write
		54	#undef send
		55	#undef recv
		56	#undef stat
		57	#undef lstat
		58	#undef fstat
		59	#undef truncate
		60	#undef ftruncate
		61	#undef open
		62	#undef link
		63	#undef close
		64	#undef unlink
		65	#undef mkdir
		66	#undef rmdir
		67	#undef rename
		68	#undef lseek
		69	#undef opendir
		70	#undef readdir
		71	#undef closedir
		72	#undef chmod
		73	#undef fchmod
		74	#undef dup
		75	#undef dup2
		76	#undef abort
		77	#undef pipe
		78
		79	#define EIO_STRUCT_STAT struct _stati64
83	#define EIO_STRUCT_STAT Stat_t	80	#define EIO_STRUCT_STATI64
84		81
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	82	#else
91	# define VAL64 NV	83
92	# define SvVAL64 SvNV	84	#include <sys/time.h>
93	# define newSVval64 newSVnv	85	#include <sys/select.h>
		86	#include <unistd.h>
		87	#include <utime.h>
		88	#include <signal.h>
		89
		90	#define EIO_STRUCT_STAT Stat_t
		91
94	#endif	92	#endif
95		93
96	/*****************************************************************************/	94	/*****************************************************************************/
97		95
98	#if __GNUC__ >= 3	96	#if __GNUC__ >= 3
…		…
104	#define expect_false(expr) expect ((expr) != 0, 0)	102	#define expect_false(expr) expect ((expr) != 0, 0)
105	#define expect_true(expr) expect ((expr) != 0, 1)	103	#define expect_true(expr) expect ((expr) != 0, 1)
106		104
107	/*****************************************************************************/	105	/*****************************************************************************/
108		106
		107	#include "libeio/config.h"
		108
		109	#include "schmorp.h"
		110
		111	#if HAVE_EVENTFD
		112	# include <sys/eventfd.h>
		113	#endif
		114
		115	#if HAVE_TIMERFD
		116	# include <sys/timerfd.h>
		117	#endif
		118
		119	#if HAVE_RLIMITS
		120	#include <sys/time.h>
		121	#include <sys/resource.h>
		122	#endif
		123
109	typedef SV SV8; /* byte-sv, used for argument-checking */	124	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	125	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	126	typedef int aio_wfd; /* write file descriptor */
112		127
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	128	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		129
115	#define EIO_REQ_MEMBERS \	130	#define EIO_REQ_MEMBERS \
116	SV *callback; \	131	SV *callback; \
117	SV *sv1, *sv2; \	132	SV *sv1, *sv2; \
		133	SV *sv3, *sv4; \
118	STRLEN stroffset; \	134	STRLEN stroffset; \
119	SV *self;	135	SV *self;
120		136
121	#define EIO_NO_WRAPPERS 1	137	#define EIO_NO_WRAPPERS 1
122		138
123	#include "libeio/eio.h"	139	#include "libeio/eio.h"
124		140
125	#ifndef POSIX_FADV_NORMAL	141	static int req_invoke (eio_req *req);
126	# define POSIX_FADV_NORMAL 0	142	#define EIO_FINISH(req) req_invoke (req)
127	#endif	143	static void req_destroy (eio_req *grp);
128	#ifndef POSIX_FADV_SEQUENTIAL	144	#define EIO_DESTROY(req) req_destroy (req)
129	# define POSIX_FADV_SEQUENTIAL 0	145
130	#endif	146	#include "libeio/eio.c"
131	#ifndef POSIX_FADV_RANDOM
132	# define POSIX_FADV_RANDOM 0
133	#endif
134	#ifndef POSIX_FADV_NOREUSE
135	# define POSIX_FADV_NOREUSE 0
136	#endif
137	#ifndef POSIX_FADV_WILLNEED
138	# define POSIX_FADV_WILLNEED 0
139	#endif
140	#ifndef POSIX_FADV_DONTNEED
141	# define POSIX_FADV_DONTNEED 0
142	#endif
143		147
144	#if !HAVE_POSIX_FADVISE	148	#if !HAVE_POSIX_FADVISE
145	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	149	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
146	#endif	150	#endif
147		151
148	#ifndef POSIX_MADV_NORMAL
149	# define POSIX_MADV_NORMAL 0
150	#endif
151	#ifndef POSIX_MADV_SEQUENTIAL
152	# define POSIX_MADV_SEQUENTIAL 0
153	#endif
154	#ifndef POSIX_MADV_RANDOM
155	# define POSIX_MADV_RANDOM 0
156	#endif
157	#ifndef POSIX_MADV_WILLNEED
158	# define POSIX_MADV_WILLNEED 0
159	#endif
160	#ifndef POSIX_MADV_DONTNEED
161	# define POSIX_MADV_DONTNEED 0
162	#endif
163
164	#if !HAVE_POSIX_MADVISE	152	#if !HAVE_POSIX_MADVISE
165	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	153	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
166	#endif
167
168	#ifndef PROT_NONE
169	# define PROT_NONE 0
170	#endif
171	#ifndef PROT_READ
172	# define PROT_READ 0
173	#endif
174	#ifndef PROT_WRITE
175	# define PROT_READ 0
176	#endif
177	#ifndef PROT_EXEC
178	# define PROT_EXEC 0
179	#endif
180
181	#ifndef ST_NODEV
182	# define ST_NODEV 0
183	#endif
184	#ifndef ST_NOEXEC
185	# define ST_NOEXEC 0
186	#endif
187	#ifndef ST_SYNCHRONOUS
188	# define ST_SYNCHRONOUS 0
189	#endif
190	#ifndef ST_MANDLOCK
191	# define ST_MANDLOCK 0
192	#endif
193	#ifndef ST_WRITE
194	# define ST_WRITE 0
195	#endif
196	#ifndef ST_APPEND
197	# define ST_APPEND 0
198	#endif
199	#ifndef ST_IMMUTABLE
200	# define ST_IMMUTABLE 0
201	#endif
202	#ifndef ST_NOATIME
203	# define ST_NOATIME 0
204	#endif
205	#ifndef ST_NODIRATIME
206	# define ST_NODIRATIME 0
207	#endif
208	#ifndef ST_RELATIME
209	# define ST_RELATIME 0
210	#endif	154	#endif
211		155
212	#ifndef MAP_ANONYMOUS	156	#ifndef MAP_ANONYMOUS
213	# ifdef MAP_ANON	157	# ifdef MAP_ANON
214	# define MAP_ANONYMOUS MAP_ANON	158	# define MAP_ANONYMOUS MAP_ANON
215	# else	159	# else
216	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	160	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
217	# endif	161	# endif
218	#endif	162	#endif
219	#ifndef MAP_HUGETLB
220	# define MAP_HUGETLB 0
221	#endif
222	#ifndef MAP_LOCKED
223	# define MAP_LOCKED 0
224	#endif
225	#ifndef MAP_NORESERVE
226	# define MAP_NORESERVE 0
227	#endif
228	#ifndef MAP_POPULATE
229	# define MAP_POPULATE 0
230	#endif
231	#ifndef MAP_NONBLOCK
232	# define MAP_NONBLOCK 0
233	#endif
234		163
235	#ifndef PAGESIZE	164	/* defines all sorts of constants to 0 unless they are already defined */
		165	/* also provides const_iv_ and const_niv_ macros for them */
		166	#include "def0.h"
		167
		168	#ifndef makedev
		169	# define makedev(maj,min) (((maj) << 8) | (min))
		170	#endif
		171	#ifndef major
		172	# define major(dev) ((dev) >> 8)
		173	#endif
		174	#ifndef minor
		175	# define minor(dev) ((dev) & 0xff)
		176	#endif
		177
		178	#if PAGESIZE <= 0
236	# define PAGESIZE sysconf (_SC_PAGESIZE)	179	# define PAGESIZE sysconf (_SC_PAGESIZE)
237	#endif	180	#endif
238		181
239	static int req_invoke (eio_req *req);	182	/*****************************************************************************/
240	#define EIO_FINISH(req) req_invoke (req)	183
241	static void req_destroy (eio_req *grp);	184	#if !_POSIX_MAPPED_FILES
242	#define EIO_DESTROY(req) req_destroy (req)	185	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		186	# define munmap(addr,length) EIO_ENOSYS ()
		187	#endif
		188
		189	#if !_POSIX_MEMORY_PROTECTION
		190	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		191	#endif
		192
		193	#define FOREIGN_MAGIC PERL_MAGIC_ext
		194
		195	static int ecb_cold
		196	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		197	{
		198	int old_errno = errno;
		199	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		200	errno = old_errno;
		201
		202	mg->mg_obj = 0; /* just in case */
		203
		204	SvREADONLY_off (sv);
		205
		206	if (SvPVX (sv) != mg->mg_ptr)
		207	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		208
		209	SvCUR_set (sv, 0);
		210	SvPVX (sv) = 0;
		211	SvOK_off (sv);
		212
		213	return 0;
		214	}
		215
		216	static MGVTBL mmap_vtbl = {
		217	0, 0, 0, 0, mmap_free
		218	};
		219
		220	static int ecb_cold
		221	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		222	{
		223	free (mg->mg_ptr);
		224	mg->mg_obj = 0; /* just in case */
		225
		226	SvREADONLY_off (sv);
		227
		228	if (SvPVX (sv) != mg->mg_ptr)
		229	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		230
		231	SvCUR_set (sv, 0);
		232	SvPVX (sv) = 0;
		233	SvOK_off (sv);
		234
		235	return 0;
		236	}
		237
		238	static MGVTBL sysfree_vtbl = {
		239	0, 0, 0, 0, sysfree_free
		240	};
		241
		242	/*****************************************************************************/
		243
		244	/* helper: set scalar to foreign ptr with custom free */
		245	static void
		246	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		247	{
		248	sv_force_normal (sv);
		249
		250	/* we store the length in mg_obj, as namlen is I32 :/ */
		251	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		252	->mg_obj = (SV *)length;
		253
		254	SvUPGRADE (sv, SVt_PV); /* nop... */
		255
		256	if (SvLEN (sv))
		257	Safefree (SvPVX (sv));
		258
		259	SvPVX (sv) = (char *)addr;
		260	SvCUR_set (sv, length);
		261	SvLEN_set (sv, 0);
		262	SvPOK_only (sv);
		263	}
		264
		265	static void
		266	sv_clear_foreign (SV *sv)
		267	{
		268	/* todo: iterate over magic and only free ours, but of course */
		269	/* the perl5porters will call that (correct) behaviour buggy */
		270	sv_unmagic (sv, FOREIGN_MAGIC);
		271	}
		272
		273	/*****************************************************************************/
		274
		275	static void
		276	fiemap (eio_req *req)
		277	{
		278	req->result = -1;
		279
		280	#if HAVE_FIEMAP
		281	/* assume some c99 */
		282	struct fiemap *fiemap = 0;
		283	size_t end_offset;
		284	int count = req->int3;
		285
		286	req->flags |= EIO_FLAG_PTR1_FREE;
		287
		288	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		289	/* increase in 3.5kb steps */
		290	if (count < 0)
		291	count = 8;
		292
		293	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		294	errno = ENOMEM;
		295	if (!fiemap)
		296	return;
		297
		298	req->ptr1 = fiemap;
		299
		300	fiemap->fm_start = req->offs;
		301	fiemap->fm_length = req->size;
		302	fiemap->fm_flags = req->int2;
		303	fiemap->fm_extent_count = count;
		304
		305	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		306	return;
		307
		308	if (req->int3 >= 0 /* not autosizing */
		309	|| !fiemap->fm_mapped_extents /* no more extents */
		310	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		311	goto done;
		312
		313	/* else we have to loop -
		314	* it would be tempting (actually I tried that first) to just query the
		315	* number of extents needed, but linux often feels like not returning all
		316	* extents, without telling us it left any out. this complicates
		317	* this quite a bit.
		318	*/
		319
		320	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		321
		322	for (;;)
		323	{
		324	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		325	char scratch[3072];
		326	struct fiemap *incmap = (struct fiemap *)scratch;
		327
		328	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		329	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		330	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		331	incmap->fm_flags = fiemap->fm_flags;
		332	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		333
		334	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		335	return;
		336
		337	if (!incmap->fm_mapped_extents)
		338	goto done;
		339
		340	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		341	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		342	errno = ENOMEM;
		343	if (!fiemap)
		344	return;
		345
		346	req->ptr1 = fiemap;
		347
		348	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		349	{
		350	struct fiemap_extent *e = incmap->fm_extents + count;
		351
		352	if (e->fe_logical + e->fe_length >= end_offset)
		353	goto done;
		354
		355	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		356
		357	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		358	goto done;
		359
		360	}
		361	}
		362
		363	done:
		364	req->result = 0;
		365
		366	#else
		367	errno = ENOSYS;
		368	#endif
		369	}
		370
		371	/*****************************************************************************/
243		372
244	enum {	373	enum {
245	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	374	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
246	};	375	};
247		376
248	#include "libeio/eio.c"
249
250	typedef eio_req *aio_req;	377	typedef eio_req *aio_req;
251	typedef eio_req *aio_req_ornot;	378	typedef eio_req *aio_req_ornot;
		379	typedef eio_wd aio_wd;
252		380
253	static SV *on_next_submit;	381	static SV *on_next_submit;
254	static int next_pri = EIO_PRI_DEFAULT;	382	static int next_pri = EIO_PRI_DEFAULT;
255	static int max_outstanding;	383	static int max_outstanding;
256		384
257	static s_epipe respipe;	385	static s_epipe respipe;
258		386
259	static void req_destroy (aio_req req);	387	static void req_destroy (aio_req req);
260	static void req_cancel (aio_req req);	388	static void req_cancel (aio_req req);
261		389
262	static void want_poll (void)	390	static void
		391	want_poll (void)
263	{	392	{
264	/* write a dummy byte to the pipe so fh becomes ready */	393	/* write a dummy byte to the pipe so fh becomes ready */
265	s_epipe_signal (&respipe);	394	s_epipe_signal (&respipe);
266	}	395	}
267		396
268	static void done_poll (void)	397	static void
		398	done_poll (void)
269	{	399	{
270	/* read any signals sent by the worker threads */	400	/* read any signals sent by the worker threads */
271	s_epipe_drain (&respipe);	401	s_epipe_drain (&respipe);
272	}	402	}
273		403
274	/* must be called at most once */	404	/* must be called at most once */
		405	static SV *
275	static SV *req_sv (aio_req req, HV *stash)	406	req_sv (aio_req req, HV *stash)
276	{	407	{
277	if (!req->self)	408	if (!req->self)
278	{	409	{
279	req->self = (SV *)newHV ();	410	req->self = (SV *)newHV ();
280	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	411	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
281	}	412	}
282		413
283	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	414	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
284	}	415	}
285		416
286	static aio_req SvAIO_REQ (SV *sv)	417	static SV *
		418	newSVaio_wd (aio_wd wd)
		419	{
		420	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		421	}
		422
		423	static aio_req
		424	SvAIO_REQ (SV *sv)
287	{	425	{
288	MAGIC *mg;	426	MAGIC *mg;
289		427
290	if (!SvROK (sv)	428	if (!SvROK (sv)
		429	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
291	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	430	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
292	&& SvSTASH (SvRV (sv)) != aio_req_stash	431	&& SvSTASH (SvRV (sv)) != aio_req_stash
293	&& !sv_derived_from (sv, "IO::AIO::REQ")))	432	&& !sv_derived_from (sv, "IO::AIO::REQ")))
294	croak ("object of class IO::AIO::REQ expected");	433	croak ("object of class IO::AIO::REQ expected");
295		434
296	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	435	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
297		436
298	return mg ? (aio_req)mg->mg_ptr : 0;	437	return mg ? (aio_req)mg->mg_ptr : 0;
299	}	438	}
300		439
		440	static aio_wd
		441	SvAIO_WD (SV *sv)
		442	{
		443	if (!SvROK (sv)
		444	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		445	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		446	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		447
		448	return (aio_wd)(long)SvIVX (SvRV (sv));
		449	}
		450
		451	static SV *
		452	newmortalFH (int fd, int flags)
		453	{
		454	if (fd < 0)
		455	return &PL_sv_undef;
		456
		457	GV *gv = (GV *)sv_newmortal ();
		458	char sym[64];
		459	int symlen;
		460
		461	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		462	gv_init (gv, aio_stash, sym, symlen, 0);
		463
		464	symlen = snprintf (
		465	sym,
		466	sizeof (sym),
		467	"%s&=%d",
		468	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		469	fd
		470	);
		471
		472	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		473	? (SV *)gv : &PL_sv_undef;
		474	}
		475
		476	static void
301	static void aio_grp_feed (aio_req grp)	477	aio_grp_feed (aio_req grp)
302	{	478	{
303	if (grp->sv2 && SvOK (grp->sv2))	479	if (grp->sv2 && SvOK (grp->sv2))
304	{	480	{
305	dSP;	481	dSP;
306		482
…		…
314	FREETMPS;	490	FREETMPS;
315	LEAVE;	491	LEAVE;
316	}	492	}
317	}	493	}
318		494
		495	static void
319	static void req_submit (eio_req *req)	496	req_submit (eio_req *req)
320	{	497	{
321	eio_submit (req);	498	eio_submit (req);
322		499
323	if (expect_false (on_next_submit))	500	if (expect_false (on_next_submit))
324	{	501	{
…		…
331	PUTBACK;	508	PUTBACK;
332	call_sv (cb, G_DISCARD | G_EVAL);	509	call_sv (cb, G_DISCARD | G_EVAL);
333	}	510	}
334	}	511	}
335		512
		513	static int
336	static int req_invoke (eio_req *req)	514	req_invoke (eio_req *req)
337	{	515	{
338	if (req->flags & FLAG_SV2_RO_OFF)	516	if (req->flags & FLAG_SV2_RO_OFF)
339	SvREADONLY_off (req->sv2);	517	SvREADONLY_off (req->sv2);
340		518
341	if (!EIO_CANCELLED (req) && req->callback)	519	if (!EIO_CANCELLED (req) && req->callback)
…		…
352	/* do not recreate the result IV from scratch each time */	530	/* do not recreate the result IV from scratch each time */
353	if (expect_true (sv_result_cache))	531	if (expect_true (sv_result_cache))
354	{	532	{
355	sv_result = sv_result_cache; sv_result_cache = 0;	533	sv_result = sv_result_cache; sv_result_cache = 0;
356	SvIV_set (sv_result, req->result);	534	SvIV_set (sv_result, req->result);
		535	SvIOK_only (sv_result);
357	}	536	}
358	else	537	else
359	{	538	{
360	sv_result = newSViv (req->result);	539	sv_result = newSViv (req->result);
361	SvREADONLY_on (sv_result);	540	SvREADONLY_on (sv_result);
362	}	541	}
363		542
364	switch (req->type)	543	switch (req->type)
365	{	544	{
		545	case EIO_WD_OPEN:
		546	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		547	break;
		548
366	case EIO_READDIR:	549	case EIO_READDIR:
367	{	550	{
368	SV *rv = &PL_sv_undef;	551	SV *rv = &PL_sv_undef;
369		552
370	if (req->result >= 0)	553	if (req->result >= 0)
…		…
423	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	606	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
424	}	607	}
425	break;	608	break;
426		609
427	case EIO_OPEN:	610	case EIO_OPEN:
428	{	611	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
429	/* convert fd to fh */
430	SV *fh = &PL_sv_undef;
431
432	if (req->result >= 0)
433	{
434	GV *gv = (GV *)sv_newmortal ();
435	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
436	char sym [64];
437	int symlen;
438
439	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
440	gv_init (gv, aio_stash, sym, symlen, 0);
441
442	symlen = snprintf (
443	sym,
444	sizeof (sym),
445	"%s&=%d",
446	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
447	(int)req->result
448	);
449
450	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
451	fh = (SV *)gv;
452	}
453
454	PUSHs (fh);
455	}
456	break;	612	break;
457		613
458	case EIO_STATVFS:	614	case EIO_STATVFS:
459	case EIO_FSTATVFS:	615	case EIO_FSTATVFS:
460	{	616	{
461	SV *rv = &PL_sv_undef;	617	SV *rv = &PL_sv_undef;
462		618
		619	#ifndef _WIN32
463	if (req->result >= 0)	620	if (req->result >= 0)
464	{	621	{
465	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	622	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
466	HV *hv = newHV ();	623	HV *hv = newHV ();
		624	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		625	* chooses to make it a struct.
		626	*/
		627	unsigned long fsid = 0;
		628	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
467		629
468	rv = sv_2mortal (newRV_noinc ((SV *)hv));	630	rv = sv_2mortal (newRV_noinc ((SV *)hv));
469		631
470	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	632	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
471	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	633	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
473	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	635	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
474	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	636	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
475	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	637	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
476	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	638	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
477	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	639	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
478	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	640	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
479	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	641	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
480	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	642	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
481	}	643	}
		644	#endif
482		645
483	PUSHs (rv);	646	PUSHs (rv);
484	}	647	}
485		648
486	break;	649	break;
…		…
502	case EIO_NOP:	665	case EIO_NOP:
503	case EIO_BUSY:	666	case EIO_BUSY:
504	break;	667	break;
505		668
506	case EIO_READLINK:	669	case EIO_READLINK:
		670	case EIO_REALPATH:
507	if (req->result > 0)	671	if (req->result > 0)
508	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	672	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
509	break;	673	break;
510		674
511	case EIO_STAT:	675	case EIO_STAT:
512	case EIO_LSTAT:	676	case EIO_LSTAT:
513	case EIO_FSTAT:	677	case EIO_FSTAT:
514	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	678	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		679
515	PL_laststatval = req->result;	680	if (!(PL_laststatval = req->result))
		681	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
516	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	682	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		683
517	PUSHs (sv_result);	684	PUSHs (sv_result);
		685	break;
		686
		687	case EIO_SEEK:
		688	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
518	break;	689	break;
519		690
520	case EIO_READ:	691	case EIO_READ:
521	{	692	{
522	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	693	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
525	SvSETMAGIC (req->sv2);	696	SvSETMAGIC (req->sv2);
526	PUSHs (sv_result);	697	PUSHs (sv_result);
527	}	698	}
528	break;	699	break;
529		700
		701	case EIO_SLURP:
		702	{
		703	if (req->result >= 0)
		704	{
		705	/* if length was originally not known, we steal the malloc'ed memory */
		706	if (req->flags & EIO_FLAG_PTR2_FREE)
		707	{
		708	req->flags &= ~EIO_FLAG_PTR2_FREE;
		709	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		710	}
		711	else
		712	{
		713	SvCUR_set (req->sv2, req->result);
		714	*SvEND (req->sv2) = 0;
		715	SvPOK_only (req->sv2);
		716	}
		717
		718	SvSETMAGIC (req->sv2);
		719	}
		720
		721	PUSHs (sv_result);
		722	}
		723	break;
		724
		725	case EIO_CUSTOM:
		726	if (req->feed == fiemap)
		727	{
		728	#if HAVE_FIEMAP
		729	if (!req->result)
		730	{
		731	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		732
		733	if (fiemap->fm_extent_count)
		734	{
		735	AV *av = newAV ();
		736	int i;
		737
		738	while (fiemap->fm_mapped_extents)
		739	{
		740	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		741	AV *ext_av = newAV ();
		742
		743	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		744	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		745	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		746	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		747
		748	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		749	}
		750
		751	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		752	}
		753	else
		754	{
		755	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		756	PUSHs (sv_result);
		757	}
		758	}
		759	#endif
		760	}
		761	else
		762	PUSHs (sv_result);
		763	break;
		764
530	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */	765	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
531	if (req->result > 0)	766	if (req->result > 0)
532	SvIV_set (sv_result, 0);	767	SvIV_set (sv_result, 0);
533	/* FALLTHROUGH */	768	/* FALLTHROUGH */
534		769
535	default:	770	default:
…		…
555	}	790	}
556		791
557	return !!SvTRUE (ERRSV);	792	return !!SvTRUE (ERRSV);
558	}	793	}
559		794
		795	static void
560	static void req_destroy (aio_req req)	796	req_destroy (aio_req req)
561	{	797	{
562	if (req->self)	798	if (req->self)
563	{	799	{
564	sv_unmagic (req->self, PERL_MAGIC_ext);	800	sv_unmagic (req->self, PERL_MAGIC_ext);
565	SvREFCNT_dec (req->self);	801	SvREFCNT_dec (req->self);
566	}	802	}
567		803
568	SvREFCNT_dec (req->sv1);	804	SvREFCNT_dec (req->sv1);
569	SvREFCNT_dec (req->sv2);	805	SvREFCNT_dec (req->sv2);
		806	SvREFCNT_dec (req->sv3);
		807	SvREFCNT_dec (req->sv4);
570	SvREFCNT_dec (req->callback);	808	SvREFCNT_dec (req->callback);
571		809
572	Safefree (req);	810	free (req);
573	}	811	}
574		812
		813	static void
575	static void req_cancel_subs (aio_req grp)	814	req_cancel_subs (aio_req grp)
576	{	815	{
577	aio_req sub;
578
579	if (grp->type != EIO_GROUP)	816	if (grp->type != EIO_GROUP)
580	return;	817	return;
581		818
582	SvREFCNT_dec (grp->sv2);	819	SvREFCNT_dec (grp->sv2);
583	grp->sv2 = 0;	820	grp->sv2 = 0;
584		821
585	eio_grp_cancel (grp);	822	eio_grp_cancel (grp);
586	}	823	}
587		824
588	static void	825	static void ecb_cold
589	create_respipe (void)	826	create_respipe (void)
590	{	827	{
591	if (s_epipe_renew (&respipe))	828	if (s_epipe_renew (&respipe))
592	croak ("IO::AIO: unable to initialize result pipe");	829	croak ("IO::AIO: unable to initialize result pipe");
593	}	830	}
594		831
595	static void poll_wait (void)	832	static void
		833	poll_wait (void)
596	{	834	{
597	while (eio_nreqs ())	835	while (eio_nreqs ())
598	{	836	{
599	int size;	837	int size;
600		838
601	X_LOCK (reslock);	839	X_LOCK (EIO_POOL->reslock);
602	size = res_queue.size;	840	size = EIO_POOL->res_queue.size;
603	X_UNLOCK (reslock);	841	X_UNLOCK (EIO_POOL->reslock);
604		842
605	if (size)	843	if (size)
606	return;	844	return;
607		845
608	etp_maybe_start_thread ();	846	etp_maybe_start_thread (EIO_POOL);
609		847
610	s_epipe_wait (&respipe);	848	s_epipe_wait (&respipe);
611	}	849	}
612	}	850	}
613		851
614	static int poll_cb (void)	852	static int
		853	poll_cb (void)
615	{	854	{
616	for (;;)	855	for (;;)
617	{	856	{
618	int res = eio_poll ();	857	int res = eio_poll ();
619		858
…		…
625		864
626	poll_wait ();	865	poll_wait ();
627	}	866	}
628	}	867	}
629		868
630	static void atfork_child (void)	869	static void ecb_cold
		870	reinit (void)
631	{	871	{
632	create_respipe ();	872	create_respipe ();
633	}
634		873
635	/*****************************************************************************/	874	if (eio_init (want_poll, done_poll) < 0)
636		875	croak ("IO::AIO: unable to initialise eio library");
637	#if !_POSIX_MAPPED_FILES
638	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
639	# define munmap(addr,length) (errno = ENOSYS, -1)
640	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
641	# define PROT_NONE 0
642	# define PROT_WRITE 0
643	# define MAP_PRIVATE 0
644	# define MAP_SHARED 0
645	# define MAP_FIXED 0
646	#endif
647
648	#define MMAP_MAGIC PERL_MAGIC_ext
649
650	static int
651	mmap_free (pTHX_ SV *sv, MAGIC *mg)
652	{
653	int old_errno = errno;
654	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
655	errno = old_errno;
656
657	mg->mg_obj = 0; /* just in case */
658
659	SvREADONLY_off (sv);
660
661	if (SvPVX (sv) != mg->mg_ptr)
662	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
663
664	SvCUR_set (sv, 0);
665	SvPVX (sv) = 0;
666	SvOK_off (sv);
667
668	return 0;
669	}	876	}
670
671	static MGVTBL mmap_vtbl = {
672	0, 0, 0, 0, mmap_free
673	};
674		877
675	/*****************************************************************************/	878	/*****************************************************************************/
676		879
677	static SV *	880	static SV *
678	get_cb (SV *cb_sv)	881	get_cb (SV *cb_sv)
679	{	882	{
680	SvGETMAGIC (cb_sv);	883	SvGETMAGIC (cb_sv);
681	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	884	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
682	}	885	}
683		886
		887	static aio_req ecb_noinline
		888	dreq (SV *callback)
		889	{
		890	SV *cb_cv;
		891	aio_req req;
		892	int req_pri = next_pri;
		893	next_pri = EIO_PRI_DEFAULT;
		894
		895	cb_cv = get_cb (callback);
		896
		897	req = calloc (sizeof (*req), 1);
		898	if (!req)
		899	croak ("out of memory during eio_req allocation");
		900
		901	req->callback = SvREFCNT_inc (cb_cv);
		902	req->pri = req_pri;
		903
		904	return req;
		905	}
		906
684	#define dREQ \	907	#define dREQ \
685	SV *cb_cv; \	908	aio_req req = dreq (callback); \
686	aio_req req; \
687	int req_pri = next_pri; \
688	next_pri = EIO_PRI_DEFAULT; \
689	\
690	cb_cv = get_cb (callback); \
691	\
692	Newz (0, req, 1, eio_req); \
693	if (!req) \
694	croak ("out of memory during eio_req allocation"); \
695	\
696	req->callback = SvREFCNT_inc (cb_cv); \
697	req->pri = req_pri
698		909
699	#define REQ_SEND \	910	#define REQ_SEND \
700	PUTBACK; \	911	PUTBACK; \
701	req_submit (req); \	912	req_submit (req); \
702	SPAGAIN; \	913	SPAGAIN; \
703	\	914	\
704	if (GIMME_V != G_VOID) \	915	if (GIMME_V != G_VOID) \
705	XPUSHs (req_sv (req, aio_req_stash));	916	XPUSHs (req_sv (req, aio_req_stash));
706		917
		918	ecb_inline void
		919	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		920	{
		921	if (expect_false (SvROK (path)))
		922	{
		923	SV *rv = SvRV (path);
		924	SV *wdob;
		925
		926	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		927	{
		928	path = AvARRAY (rv)[1];
		929	wdob = AvARRAY (rv)[0];
		930
		931	if (SvOK (wdob))
		932	{
		933	*wd = SvAIO_WD (wdob);
		934	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		935	}
		936	else
		937	*wd = EIO_INVALID_WD;
		938	}
		939	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		940	{
		941	*wd = (aio_wd)(long)SvIVX (rv);
		942	*wdsv = SvREFCNT_inc_NN (rv);
		943	*ptr = ".";
		944	return; /* path set to "." */
		945	}
		946	else
		947	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		948	}
		949
		950	*pathsv = newSVsv (path);
		951	*ptr = SvPVbyte_nolen (*pathsv);
		952	}
		953
		954	static void ecb_noinline
		955	req_set_path1 (aio_req req, SV *path)
		956	{
		957	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		958	}
		959
		960	static void ecb_noinline
		961	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		962	{
		963	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		964
		965	switch (SvTYPE (rv))
		966	{
		967	case SVt_PVIO:
		968	case SVt_PVLV:
		969	case SVt_PVGV:
		970	req->type = type_fh;
		971	req->sv1 = newSVsv (fh_or_path);
		972	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		973	break;
		974
		975	default:
		976	req->type = type_path;
		977	req_set_path1 (req, fh_or_path);
		978	break;
		979	}
		980	}
		981
		982	/*****************************************************************************/
		983
		984	static void
		985	ts_set (struct timespec *ts, NV value)
		986	{
		987	ts->tv_sec = value;
		988	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		989	}
		990
		991	static NV
		992	ts_get (const struct timespec *ts)
		993	{
		994	return ts->tv_sec + ts->tv_nsec * 1e-9;
		995	}
		996
		997	/*****************************************************************************/
		998
		999	XS(boot_IO__AIO) ecb_cold;
		1000
707	MODULE = IO::AIO PACKAGE = IO::AIO	1001	MODULE = IO::AIO PACKAGE = IO::AIO
708		1002
709	PROTOTYPES: ENABLE	1003	PROTOTYPES: ENABLE
710		1004
711	BOOT:	1005	BOOT:
…		…
715	IV iv;	1009	IV iv;
716	} *civ, const_iv[] = {	1010	} *civ, const_iv[] = {
717	# define const_niv(name, value) { # name, (IV) value },	1011	# define const_niv(name, value) { # name, (IV) value },
718	# define const_iv(name) { # name, (IV) name },	1012	# define const_iv(name) { # name, (IV) name },
719	# define const_eio(name) { # name, (IV) EIO_ ## name },	1013	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1014
		1015	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1016	/* the first block can be undef if missing */
		1017	const_iv (ENOSYS)
720	const_iv (EXDEV)	1018	const_iv (EXDEV)
721	const_iv (ENOSYS)	1019	const_iv (EBADR)
		1020
		1021	/* for lseek */
		1022	const_iv (SEEK_DATA)
		1023	const_iv (SEEK_HOLE)
		1024
		1025	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1026	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1027	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1028	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1029	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1030	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1031
		1032	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1033	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1034	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1035	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1036	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1037
		1038	/* the second block will be 0 when missing */
722	const_iv (O_RDONLY)	1039	const_iv (O_RDONLY)
723	const_iv (O_WRONLY)	1040	const_iv (O_WRONLY)
724	const_iv (O_RDWR)	1041	const_iv (O_RDWR)
725	const_iv (O_CREAT)	1042	const_iv (O_CREAT)
726	const_iv (O_TRUNC)	1043	const_iv (O_TRUNC)
727	const_iv (O_EXCL)	1044	const_iv (O_EXCL)
728	const_iv (O_APPEND)	1045	const_iv (O_APPEND)
729	#ifndef _WIN32	1046
		1047	const_iv (O_ASYNC)
		1048	const_iv (O_DIRECT)
		1049	const_iv (O_NOATIME)
		1050
		1051	const_iv (O_CLOEXEC)
		1052	const_iv (O_NOCTTY)
		1053	const_iv (O_NOFOLLOW)
		1054	const_iv (O_NONBLOCK)
		1055	const_iv (O_EXEC)
		1056	const_iv (O_SEARCH)
		1057	const_iv (O_DIRECTORY)
		1058	const_iv (O_DSYNC)
		1059	const_iv (O_RSYNC)
		1060	const_iv (O_SYNC)
		1061	const_iv (O_PATH)
		1062	const_iv (O_TMPFILE)
		1063	const_iv (O_TTY_INIT)
		1064
730	const_iv (S_IFIFO)	1065	const_iv (S_IFIFO)
731	#endif	1066	const_iv (S_IFCHR)
732	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	1067	const_iv (S_IFBLK)
733	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	1068	const_iv (S_IFLNK)
734	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	1069	const_iv (S_IFREG)
735	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	1070	const_iv (S_IFDIR)
736	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	1071	const_iv (S_IFWHT)
737	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	1072	const_iv (S_IFSOCK)
738		1073	const_iv (S_IFMT)
739	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
740	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
741	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
742	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
743	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
744		1074
745	const_iv (ST_RDONLY)	1075	const_iv (ST_RDONLY)
746	const_iv (ST_NOSUID)	1076	const_iv (ST_NOSUID)
747	const_iv (ST_NODEV)	1077	const_iv (ST_NODEV)
748	const_iv (ST_NOEXEC)	1078	const_iv (ST_NOEXEC)
…		…
758	const_iv (PROT_NONE)	1088	const_iv (PROT_NONE)
759	const_iv (PROT_EXEC)	1089	const_iv (PROT_EXEC)
760	const_iv (PROT_READ)	1090	const_iv (PROT_READ)
761	const_iv (PROT_WRITE)	1091	const_iv (PROT_WRITE)
762		1092
763	/*const_iv (MAP_FIXED)*/
764	const_iv (MAP_PRIVATE)	1093	const_iv (MAP_PRIVATE)
765	const_iv (MAP_SHARED)	1094	const_iv (MAP_SHARED)
		1095	const_iv (MAP_FIXED)
766	const_iv (MAP_ANONYMOUS)	1096	const_iv (MAP_ANONYMOUS)
767		1097
768	/* linuxish */	1098	/* linuxish */
769	const_iv (MAP_HUGETLB)
770	const_iv (MAP_LOCKED)	1099	const_iv (MAP_LOCKED)
771	const_iv (MAP_NORESERVE)	1100	const_iv (MAP_NORESERVE)
772	const_iv (MAP_POPULATE)	1101	const_iv (MAP_POPULATE)
773	const_iv (MAP_NONBLOCK)	1102	const_iv (MAP_NONBLOCK)
		1103	const_iv (MAP_GROWSDOWN)
		1104	const_iv (MAP_32BIT)
		1105	const_iv (MAP_HUGETLB)
		1106	const_iv (MAP_STACK)
		1107
		1108	const_iv (F_DUPFD_CLOEXEC)
		1109
		1110	const_iv (F_OFD_GETLK)
		1111	const_iv (F_OFD_SETLK)
		1112	const_iv (F_OFD_GETLKW)
		1113
		1114	const_iv (FIFREEZE)
		1115	const_iv (FITHAW)
		1116	const_iv (FITRIM)
		1117	const_iv (FICLONE)
		1118	const_iv (FICLONERANGE)
		1119	const_iv (FIDEDUPERANGE)
		1120
		1121	const_iv (FS_IOC_GETFLAGS)
		1122	const_iv (FS_IOC_SETFLAGS)
		1123	const_iv (FS_IOC_GETVERSION)
		1124	const_iv (FS_IOC_SETVERSION)
		1125	const_iv (FS_IOC_FIEMAP)
		1126	const_iv (FS_IOC_FSGETXATTR)
		1127	const_iv (FS_IOC_FSSETXATTR)
		1128	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1129	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1130	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1131
		1132	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1133
		1134	const_iv (FS_SECRM_FL)
		1135	const_iv (FS_UNRM_FL)
		1136	const_iv (FS_COMPR_FL)
		1137	const_iv (FS_SYNC_FL)
		1138	const_iv (FS_IMMUTABLE_FL)
		1139	const_iv (FS_APPEND_FL)
		1140	const_iv (FS_NODUMP_FL)
		1141	const_iv (FS_NOATIME_FL)
		1142	const_iv (FS_DIRTY_FL)
		1143	const_iv (FS_COMPRBLK_FL)
		1144	const_iv (FS_NOCOMP_FL)
		1145	const_iv (FS_ENCRYPT_FL)
		1146	const_iv (FS_BTREE_FL)
		1147	const_iv (FS_INDEX_FL)
		1148	const_iv (FS_JOURNAL_DATA_FL)
		1149	const_iv (FS_NOTAIL_FL)
		1150	const_iv (FS_DIRSYNC_FL)
		1151	const_iv (FS_TOPDIR_FL)
		1152	const_iv (FS_FL_USER_MODIFIABLE)
		1153
		1154	const_iv (FS_XFLAG_REALTIME)
		1155	const_iv (FS_XFLAG_PREALLOC)
		1156	const_iv (FS_XFLAG_IMMUTABLE)
		1157	const_iv (FS_XFLAG_APPEND)
		1158	const_iv (FS_XFLAG_SYNC)
		1159	const_iv (FS_XFLAG_NOATIME)
		1160	const_iv (FS_XFLAG_NODUMP)
		1161	const_iv (FS_XFLAG_RTINHERIT)
		1162	const_iv (FS_XFLAG_PROJINHERIT)
		1163	const_iv (FS_XFLAG_NOSYMLINKS)
		1164	const_iv (FS_XFLAG_EXTSIZE)
		1165	const_iv (FS_XFLAG_EXTSZINHERIT)
		1166	const_iv (FS_XFLAG_NODEFRAG)
		1167	const_iv (FS_XFLAG_FILESTREAM)
		1168	const_iv (FS_XFLAG_DAX)
		1169	const_iv (FS_XFLAG_HASATTR)
		1170
		1171	const_iv (FIEMAP_FLAG_SYNC)
		1172	const_iv (FIEMAP_FLAG_XATTR)
		1173	const_iv (FIEMAP_FLAGS_COMPAT)
		1174	const_iv (FIEMAP_EXTENT_LAST)
		1175	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1176	const_iv (FIEMAP_EXTENT_DELALLOC)
		1177	const_iv (FIEMAP_EXTENT_ENCODED)
		1178	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1179	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1180	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1181	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1182	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1183	const_iv (FIEMAP_EXTENT_MERGED)
		1184	const_iv (FIEMAP_EXTENT_SHARED)
		1185
		1186	const_iv (SPLICE_F_MOVE)
		1187	const_iv (SPLICE_F_NONBLOCK)
		1188	const_iv (SPLICE_F_MORE)
		1189	const_iv (SPLICE_F_GIFT)
		1190
		1191	const_iv (EFD_CLOEXEC)
		1192	const_iv (EFD_NONBLOCK)
		1193	const_iv (EFD_SEMAPHORE)
		1194
		1195	const_iv (CLOCK_REALTIME)
		1196	const_iv (CLOCK_MONOTONIC)
		1197	const_iv (CLOCK_BOOTTIME)
		1198	const_iv (CLOCK_REALTIME_ALARM)
		1199	const_iv (CLOCK_BOOTTIME_ALARM)
		1200
		1201	const_iv (TFD_NONBLOCK)
		1202	const_iv (TFD_CLOEXEC)
		1203
		1204	const_iv (TFD_TIMER_ABSTIME)
		1205	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1206
		1207	/* these are libeio constants, and are independent of gendef0 */
		1208	const_eio (SEEK_SET)
		1209	const_eio (SEEK_CUR)
		1210	const_eio (SEEK_END)
774		1211
775	const_eio (MCL_FUTURE)	1212	const_eio (MCL_FUTURE)
776	const_eio (MCL_CURRENT)	1213	const_eio (MCL_CURRENT)
777		1214
778	const_eio (MS_ASYNC)	1215	const_eio (MS_ASYNC)
…		…
782	const_eio (MT_MODIFY)	1219	const_eio (MT_MODIFY)
783		1220
784	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1221	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
785	const_eio (SYNC_FILE_RANGE_WRITE)	1222	const_eio (SYNC_FILE_RANGE_WRITE)
786	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1223	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1224
		1225	const_eio (FALLOC_FL_KEEP_SIZE)
		1226	const_eio (FALLOC_FL_PUNCH_HOLE)
		1227	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1228	const_eio (FALLOC_FL_ZERO_RANGE)
		1229	const_eio (FALLOC_FL_INSERT_RANGE)
		1230	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1231
		1232	const_eio (RENAME_NOREPLACE)
		1233	const_eio (RENAME_EXCHANGE)
		1234	const_eio (RENAME_WHITEOUT)
787		1235
788	const_eio (READDIR_DENTS)	1236	const_eio (READDIR_DENTS)
789	const_eio (READDIR_DIRS_FIRST)	1237	const_eio (READDIR_DIRS_FIRST)
790	const_eio (READDIR_STAT_ORDER)	1238	const_eio (READDIR_STAT_ORDER)
791	const_eio (READDIR_FOUND_UNKNOWN)	1239	const_eio (READDIR_FOUND_UNKNOWN)
…		…
802	};	1250	};
803		1251
804	aio_stash = gv_stashpv ("IO::AIO" , 1);	1252	aio_stash = gv_stashpv ("IO::AIO" , 1);
805	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1253	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
806	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1254	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1255	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
807		1256
808	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1257	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
809	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1258	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
810		1259
811	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1260	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
812		1261
813	create_respipe ();	1262	reinit ();
814
815	if (eio_init (want_poll, done_poll) < 0)
816	croak ("IO::AIO: unable to initialise eio library");
817
818	/* atfork child called in fifo order, so before eio's handler */
819	X_THREAD_ATFORK (0, 0, atfork_child);
820	}	1263	}
821		1264
822	void	1265	void
		1266	reinit ()
		1267	PROTOTYPE:
		1268
		1269	void
823	max_poll_reqs (int nreqs)	1270	max_poll_reqs (unsigned int nreqs)
824	PROTOTYPE: $	1271	PROTOTYPE: $
825	CODE:	1272	CODE:
826	eio_set_max_poll_reqs (nreqs);	1273	eio_set_max_poll_reqs (nreqs);
827		1274
828	void	1275	void
…		…
830	PROTOTYPE: $	1277	PROTOTYPE: $
831	CODE:	1278	CODE:
832	eio_set_max_poll_time (nseconds);	1279	eio_set_max_poll_time (nseconds);
833		1280
834	void	1281	void
835	min_parallel (int nthreads)	1282	min_parallel (unsigned int nthreads)
836	PROTOTYPE: $	1283	PROTOTYPE: $
837	CODE:	1284	CODE:
838	eio_set_min_parallel (nthreads);	1285	eio_set_min_parallel (nthreads);
839		1286
840	void	1287	void
841	max_parallel (int nthreads)	1288	max_parallel (unsigned int nthreads)
842	PROTOTYPE: $	1289	PROTOTYPE: $
843	CODE:	1290	CODE:
844	eio_set_max_parallel (nthreads);	1291	eio_set_max_parallel (nthreads);
845		1292
846	void	1293	void
847	max_idle (int nthreads)	1294	max_idle (unsigned int nthreads)
848	PROTOTYPE: $	1295	PROTOTYPE: $
849	CODE:	1296	CODE:
850	eio_set_max_idle (nthreads);	1297	eio_set_max_idle (nthreads);
851		1298
852	void	1299	void
		1300	idle_timeout (unsigned int seconds)
		1301	PROTOTYPE: $
		1302	CODE:
		1303	eio_set_idle_timeout (seconds);
		1304
		1305	void
853	max_outstanding (int maxreqs)	1306	max_outstanding (unsigned int maxreqs)
854	PROTOTYPE: $	1307	PROTOTYPE: $
855	CODE:	1308	CODE:
856	max_outstanding = maxreqs;	1309	max_outstanding = maxreqs;
857		1310
858	void	1311	void
859	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1312	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
860	PPCODE:	1313	PPCODE:
861	{	1314	{
862	dREQ;	1315	dREQ;
863		1316
		1317	req->type = EIO_WD_OPEN;
		1318	req_set_path1 (req, pathname);
		1319
		1320	REQ_SEND;
		1321	}
		1322
		1323	void
		1324	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1325	PPCODE:
		1326	{
		1327	dREQ;
		1328
864	req->type = EIO_OPEN;	1329	req->type = EIO_OPEN;
865	req->sv1 = newSVsv (pathname);	1330	req_set_path1 (req, pathname);
866	req->ptr1 = SvPVbyte_nolen (req->sv1);
867	req->int1 = flags;	1331	req->int1 = flags;
868	req->int2 = mode;	1332	req->int2 = mode;
869		1333
870	REQ_SEND;	1334	REQ_SEND;
871	}	1335	}
872		1336
873	void	1337	void
874	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1338	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
875	ALIAS:	1339	ALIAS:
876	aio_fsync = EIO_FSYNC	1340	aio_fsync = EIO_FSYNC
877	aio_fdatasync = EIO_FDATASYNC	1341	aio_fdatasync = EIO_FDATASYNC
		1342	aio_syncfs = EIO_SYNCFS
878	PPCODE:	1343	PPCODE:
879	{	1344	{
880	int fd = s_fileno_croak (fh, 0);	1345	int fd = s_fileno_croak (fh, 0);
881	dREQ;	1346	dREQ;
882		1347
883	req->type = ix;	1348	req->type = ix;
884	req->sv1 = newSVsv (fh);	1349	req->sv1 = newSVsv (fh);
885	req->int1 = fd;	1350	req->int1 = fd;
886		1351
887	REQ_SEND (req);	1352	REQ_SEND;
888	}	1353	}
889		1354
890	void	1355	void
891	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1356	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
892	PPCODE:	1357	PPCODE:
893	{	1358	{
894	int fd = s_fileno_croak (fh, 0);	1359	int fd = s_fileno_croak (fh, 0);
895	dREQ;	1360	dREQ;
896		1361
897	req->type = EIO_SYNC_FILE_RANGE;	1362	req->type = EIO_SYNC_FILE_RANGE;
898	req->sv1 = newSVsv (fh);	1363	req->sv1 = newSVsv (fh);
899	req->int1 = fd;	1364	req->int1 = fd;
900	req->offs = offset;	1365	req->offs = offset;
901	req->size = nbytes;	1366	req->size = nbytes;
902	req->int2 = flags;	1367	req->int2 = flags;
903		1368
904	REQ_SEND (req);	1369	REQ_SEND;
905	}	1370	}
906		1371
907	void	1372	void
908	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1373	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
909	PPCODE:	1374	PPCODE:
910	{	1375	{
911	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
912	int fd = s_fileno_croak (fh, 0);	1376	int fd = s_fileno_croak (fh, 0);
913	dREQ;	1377	dREQ;
914		1378
915	if (close_pipe < 0)	1379	req->type = EIO_FALLOCATE;
		1380	req->sv1 = newSVsv (fh);
		1381	req->int1 = fd;
		1382	req->int2 = mode;
		1383	req->offs = offset;
		1384	req->size = len;
		1385
		1386	REQ_SEND;
		1387	}
		1388
		1389	void
		1390	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1391	PPCODE:
		1392	{
		1393	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1394	int fd = s_fileno_croak (fh, 0);
		1395	dREQ;
		1396
		1397	if (expect_false (close_fd < 0))
916	{	1398	{
917	int pipefd [2];	1399	int pipefd [2];
918		1400
		1401	if (
		1402	#ifdef _WIN32
		1403	_pipe (pipefd, 1, _O_BINARY) < 0
		1404	#else
919	if (pipe (pipefd) < 0	1405	pipe (pipefd) < 0
920	|| close (pipefd [1]) < 0
921	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1406	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1407	#endif
		1408	|| close (pipefd [1]) < 0
		1409	)
922	abort (); /*D*/	1410	abort (); /*D*/
923		1411
924	close_pipe = pipefd [0];	1412	close_fd = pipefd [0];
925	}	1413	}
926		1414
927	req->type = EIO_DUP2;	1415	req->type = EIO_DUP2;
928	req->int1 = close_pipe;	1416	req->int1 = close_fd;
929	req->sv2 = newSVsv (fh);	1417	req->sv2 = newSVsv (fh);
930	req->int2 = fd;	1418	req->int2 = fd;
931		1419
932	REQ_SEND (req);	1420	REQ_SEND;
933	}	1421	}
934		1422
935	void	1423	void
		1424	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1425	PPCODE:
		1426	{
		1427	int fd = s_fileno_croak (fh, 0);
		1428	dREQ;
		1429
		1430	req->type = EIO_SEEK;
		1431	req->sv1 = newSVsv (fh);
		1432	req->int1 = fd;
		1433	req->offs = SvVAL64 (offset);
		1434	req->int2 = whence;
		1435
		1436	REQ_SEND;
		1437	}
		1438
		1439	void
936	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1440	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
937	ALIAS:	1441	ALIAS:
938	aio_read = EIO_READ	1442	aio_read = EIO_READ
939	aio_write = EIO_WRITE	1443	aio_write = EIO_WRITE
940	PPCODE:	1444	PPCODE:
941	{	1445	{
…		…
957	len = svlen - dataoffset;	1461	len = svlen - dataoffset;
958	}	1462	}
959	else	1463	else
960	{	1464	{
961	/* read: check type and grow scalar as necessary */	1465	/* read: check type and grow scalar as necessary */
962	SvUPGRADE (data, SVt_PV);	1466	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
963	svptr = SvGROW (data, len + dataoffset + 1);	1467	svptr = sv_grow (data, len + dataoffset + 1);
		1468	else if (SvCUR (data) < len + dataoffset)
		1469	croak ("length + dataoffset outside of scalar, and cannot grow");
964	}	1470	}
965		1471
966	{	1472	{
967	dREQ;	1473	dREQ;
968		1474
…		…
984	REQ_SEND;	1490	REQ_SEND;
985	}	1491	}
986	}	1492	}
987		1493
988	void	1494	void
989	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1495	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1496	ALIAS:
		1497	aio_ioctl = EIO_IOCTL
		1498	aio_fcntl = EIO_FCNTL
990	PPCODE:	1499	PPCODE:
991	{	1500	{
992	SV *data;	1501	int fd = s_fileno_croak (fh, 0);
		1502	char *svptr;
		1503
		1504	if (SvPOK (arg) || !SvNIOK (arg))
		1505	{
		1506	STRLEN svlen;
		1507	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1508	#ifdef IOCPARM_LEN
		1509	STRLEN need = IOCPARM_LEN (request);
		1510	#else
		1511	STRLEN need = 256;
		1512	#endif
		1513
		1514	if (svlen < need)
		1515	svptr = SvGROW (arg, need);
		1516	}
		1517	else
		1518	svptr = (char *)SvIV (arg);
		1519
		1520	{
		1521	dREQ;
		1522
		1523	req->type = ix;
		1524	req->sv1 = newSVsv (fh);
		1525	req->int1 = fd;
		1526	req->int2 = (long)request;
		1527	req->sv2 = SvREFCNT_inc (arg);
		1528	req->ptr2 = svptr;
		1529
		1530	REQ_SEND;
		1531	}
		1532	}
		1533
		1534	void
		1535	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1536	ALIAS:
		1537	aio_readlink = EIO_READLINK
		1538	aio_realpath = EIO_REALPATH
		1539	PPCODE:
		1540	{
993	dREQ;	1541	dREQ;
994		1542
995	req->type = EIO_READLINK;	1543	req->type = ix;
996	req->sv1 = newSVsv (path);	1544	req_set_path1 (req, pathname);
997	req->ptr1 = SvPVbyte_nolen (req->sv1);
998		1545
999	REQ_SEND;	1546	REQ_SEND;
1000	}	1547	}
1001		1548
1002	void	1549	void
1003	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1550	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1004	PPCODE:	1551	PPCODE:
1005	{	1552	{
1006	int ifd = s_fileno_croak (in_fh , 0);	1553	int ifd = s_fileno_croak (in_fh , 0);
1007	int ofd = s_fileno_croak (out_fh, 1);	1554	int ofd = s_fileno_croak (out_fh, 1);
1008	dREQ;	1555	dREQ;
1009		1556
1010	req->type = EIO_SENDFILE;	1557	req->type = EIO_SENDFILE;
1011	req->sv1 = newSVsv (out_fh);	1558	req->sv1 = newSVsv (out_fh);
1012	req->int1 = ofd;	1559	req->int1 = ofd;
…		…
1017		1564
1018	REQ_SEND;	1565	REQ_SEND;
1019	}	1566	}
1020		1567
1021	void	1568	void
1022	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1569	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1023	PPCODE:	1570	PPCODE:
1024	{	1571	{
1025	int fd = s_fileno_croak (fh, 0);	1572	int fd = s_fileno_croak (fh, 0);
1026	dREQ;	1573	dREQ;
1027		1574
1028	req->type = EIO_READAHEAD;	1575	req->type = EIO_READAHEAD;
1029	req->sv1 = newSVsv (fh);	1576	req->sv1 = newSVsv (fh);
1030	req->int1 = fd;	1577	req->int1 = fd;
…		…
1033		1580
1034	REQ_SEND;	1581	REQ_SEND;
1035	}	1582	}
1036		1583
1037	void	1584	void
1038	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1585	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1039	ALIAS:	1586	ALIAS:
1040	aio_stat = EIO_STAT	1587	aio_stat = EIO_STAT
1041	aio_lstat = EIO_LSTAT	1588	aio_lstat = EIO_LSTAT
1042	aio_statvfs = EIO_STATVFS	1589	aio_statvfs = EIO_STATVFS
1043	PPCODE:	1590	PPCODE:
1044	{	1591	{
1045	dREQ;	1592	dREQ;
1046		1593
1047	req->sv1 = newSVsv (fh_or_path);	1594	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1048
1049	if (SvPOK (req->sv1))
1050	{
1051	req->type = ix;
1052	req->ptr1 = SvPVbyte_nolen (req->sv1);
1053	}
1054	else
1055	{
1056	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1057	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1058	}
1059		1595
1060	REQ_SEND;	1596	REQ_SEND;
1061	}	1597	}
1062		1598
		1599	UV
		1600	major (UV dev)
		1601	ALIAS:
		1602	minor = 1
		1603	CODE:
		1604	RETVAL = ix ? minor (dev) : major (dev);
		1605	OUTPUT:
		1606	RETVAL
		1607
		1608	UV
		1609	makedev (UV maj, UV min)
		1610	CODE:
		1611	RETVAL = makedev (maj, min);
		1612	OUTPUT:
		1613	RETVAL
		1614
1063	void	1615	void
1064	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1616	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1065	PPCODE:	1617	PPCODE:
1066	{	1618	{
1067	dREQ;	1619	dREQ;
1068		1620
1069	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1621	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1070	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1622	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1071	req->sv1 = newSVsv (fh_or_path);	1623	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1072
1073	if (SvPOK (req->sv1))
1074	{
1075	req->type = EIO_UTIME;
1076	req->ptr1 = SvPVbyte_nolen (req->sv1);
1077	}
1078	else
1079	{
1080	req->type = EIO_FUTIME;
1081	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1082	}
1083		1624
1084	REQ_SEND;	1625	REQ_SEND;
1085	}	1626	}
1086		1627
1087	void	1628	void
1088	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1629	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1089	PPCODE:	1630	PPCODE:
1090	{	1631	{
1091	dREQ;	1632	dREQ;
1092		1633
1093	req->sv1 = newSVsv (fh_or_path);
1094	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1634	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1095		1635	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1096	if (SvPOK (req->sv1))
1097	{
1098	req->type = EIO_TRUNCATE;
1099	req->ptr1 = SvPVbyte_nolen (req->sv1);
1100	}
1101	else
1102	{
1103	req->type = EIO_FTRUNCATE;
1104	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1105	}
1106		1636
1107	REQ_SEND;	1637	REQ_SEND;
1108	}	1638	}
1109		1639
1110	void	1640	void
1111	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1641	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1112	ALIAS:
1113	aio_chmod = EIO_CHMOD
1114	aio_mkdir = EIO_MKDIR
1115	PPCODE:	1642	PPCODE:
1116	{	1643	{
1117	dREQ;	1644	dREQ;
1118		1645
1119	req->int2 = mode;	1646	req->int2 = mode;
1120	req->sv1 = newSVsv (fh_or_path);	1647	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1121
1122	if (SvPOK (req->sv1))
1123	{
1124	req->type = ix;
1125	req->ptr1 = SvPVbyte_nolen (req->sv1);
1126	}
1127	else
1128	{
1129	req->type = EIO_FCHMOD;
1130	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1131	}
1132		1648
1133	REQ_SEND;	1649	REQ_SEND;
1134	}	1650	}
1135		1651
1136	void	1652	void
1137	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1653	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1138	PPCODE:	1654	PPCODE:
1139	{	1655	{
1140	dREQ;	1656	dREQ;
1141		1657
1142	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1658	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1143	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1659	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1144	req->sv1 = newSVsv (fh_or_path);	1660	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1145
1146	if (SvPOK (req->sv1))
1147	{
1148	req->type = EIO_CHOWN;
1149	req->ptr1 = SvPVbyte_nolen (req->sv1);
1150	}
1151	else
1152	{
1153	req->type = EIO_FCHOWN;
1154	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1155	}
1156		1661
1157	REQ_SEND;	1662	REQ_SEND;
1158	}	1663	}
1159		1664
1160	void	1665	void
1161	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1666	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1162	PPCODE:	1667	PPCODE:
1163	{	1668	{
1164	dREQ;	1669	dREQ;
1165		1670
1166	req->type = EIO_READDIR;	1671	req->type = EIO_READDIR;
1167	req->sv1 = newSVsv (pathname);
1168	req->ptr1 = SvPVbyte_nolen (req->sv1);
1169	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1672	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1170		1673
1171	if (flags & EIO_READDIR_DENTS)	1674	if (flags & EIO_READDIR_DENTS)
1172	req->int1 |= EIO_READDIR_CUSTOM2;	1675	req->int1 |= EIO_READDIR_CUSTOM2;
1173		1676
		1677	req_set_path1 (req, pathname);
		1678
1174	REQ_SEND;	1679	REQ_SEND;
1175	}	1680	}
1176		1681
1177	void	1682	void
		1683	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1684	PPCODE:
		1685	{
		1686	dREQ;
		1687
		1688	req->type = EIO_MKDIR;
		1689	req->int2 = mode;
		1690	req_set_path1 (req, pathname);
		1691
		1692	REQ_SEND;
		1693	}
		1694
		1695	void
1178	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1696	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1179	ALIAS:	1697	ALIAS:
1180	aio_unlink = EIO_UNLINK	1698	aio_unlink = EIO_UNLINK
1181	aio_rmdir = EIO_RMDIR	1699	aio_rmdir = EIO_RMDIR
1182	aio_readdir = EIO_READDIR	1700	aio_readdir = EIO_READDIR
1183	PPCODE:	1701	PPCODE:
1184	{	1702	{
1185	dREQ;	1703	dREQ;
1186		1704
1187	req->type = ix;	1705	req->type = ix;
1188	req->sv1 = newSVsv (pathname);	1706	req_set_path1 (req, pathname);
1189	req->ptr1 = SvPVbyte_nolen (req->sv1);
1190		1707
1191	REQ_SEND;	1708	REQ_SEND;
1192	}	1709	}
1193		1710
1194	void	1711	void
1195	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1712	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1196	ALIAS:	1713	ALIAS:
1197	aio_link = EIO_LINK	1714	aio_link = EIO_LINK
1198	aio_symlink = EIO_SYMLINK	1715	aio_symlink = EIO_SYMLINK
1199	aio_rename = EIO_RENAME	1716	aio_rename = EIO_RENAME
1200	PPCODE:	1717	PPCODE:
1201	{	1718	{
		1719	eio_wd wd2 = 0;
1202	dREQ;	1720	dREQ;
1203		1721
1204	req->type = ix;	1722	req->type = ix;
1205	req->sv1 = newSVsv (oldpath);	1723	req_set_path1 (req, oldpath);
1206	req->ptr1 = SvPVbyte_nolen (req->sv1);	1724	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1207	req->sv2 = newSVsv (newpath);	1725	req->int3 = (long)wd2;
1208	req->ptr2 = SvPVbyte_nolen (req->sv2);
1209		1726
1210	REQ_SEND;	1727	REQ_SEND;
1211	}	1728	}
1212		1729
1213	void	1730	void
		1731	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1732	PPCODE:
		1733	{
		1734	eio_wd wd2 = 0;
		1735	dREQ;
		1736
		1737	req->type = EIO_RENAME;
		1738	req_set_path1 (req, oldpath);
		1739	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1740	req->int2 = flags;
		1741	req->int3 = (long)wd2;
		1742
		1743	REQ_SEND;
		1744	}
		1745
		1746	void
1214	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1747	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1215	PPCODE:	1748	PPCODE:
1216	{	1749	{
1217	dREQ;	1750	dREQ;
1218		1751
1219	req->type = EIO_MKNOD;	1752	req->type = EIO_MKNOD;
1220	req->sv1 = newSVsv (pathname);
1221	req->ptr1 = SvPVbyte_nolen (req->sv1);
1222	req->int2 = (mode_t)mode;	1753	req->int2 = (mode_t)mode;
1223	req->offs = dev;	1754	req->offs = dev;
		1755	req_set_path1 (req, pathname);
1224		1756
1225	REQ_SEND;	1757	REQ_SEND;
1226	}	1758	}
1227		1759
1228	void	1760	void
1229	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1761	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1230	ALIAS:	1762	ALIAS:
1231	aio_mtouch = EIO_MTOUCH	1763	aio_mtouch = EIO_MTOUCH
1232	aio_msync = EIO_MSYNC	1764	aio_msync = EIO_MSYNC
1233	PPCODE:	1765	PPCODE:
1234	{	1766	{
1235	STRLEN svlen;	1767	STRLEN svlen;
1236	char *svptr = SvPVbyte (data, svlen);	1768	char *svptr = SvPVbyte (data, svlen);
1237	UV len = SvUV (length);	1769	UV len = SvUV (length);
		1770
		1771	if (flags < 0)
		1772	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1238		1773
1239	if (offset < 0)	1774	if (offset < 0)
1240	offset += svlen;	1775	offset += svlen;
1241		1776
1242	if (offset < 0 || offset > svlen)	1777	if (offset < 0 || offset > svlen)
…		…
1257	REQ_SEND;	1792	REQ_SEND;
1258	}	1793	}
1259	}	1794	}
1260		1795
1261	void	1796	void
1262	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1797	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1263	PPCODE:	1798	PPCODE:
1264	{	1799	{
1265	STRLEN svlen;	1800	STRLEN svlen;
1266	char *svptr = SvPVbyte (data, svlen);	1801	char *svptr = SvPVbyte (data, svlen);
1267	UV len = SvUV (length);	1802	UV len = SvUV (length);
…		…
1286	REQ_SEND;	1821	REQ_SEND;
1287	}	1822	}
1288	}	1823	}
1289		1824
1290	void	1825	void
1291	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1826	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1292	PPCODE:	1827	PPCODE:
1293	{	1828	{
1294	dREQ;	1829	dREQ;
1295		1830
1296	req->type = EIO_MLOCKALL;	1831	req->type = EIO_MLOCKALL;
…		…
1298		1833
1299	REQ_SEND;	1834	REQ_SEND;
1300	}	1835	}
1301		1836
1302	void	1837	void
		1838	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1839	PPCODE:
		1840	{
		1841	int fd = s_fileno_croak (fh, 0);
		1842	dREQ;
		1843
		1844	req->type = EIO_CUSTOM;
		1845	req->sv1 = newSVsv (fh);
		1846	req->int1 = fd;
		1847
		1848	req->feed = fiemap;
		1849	#if HAVE_FIEMAP
		1850	/* keep our fingers crossed that the next two types are 64 bit */
		1851	req->offs = start;
		1852	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1853	req->int2 = flags;
		1854	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1855	#endif
		1856
		1857	REQ_SEND;
		1858	}
		1859
		1860	void
		1861	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1862	PPCODE:
		1863	{
		1864	char *svptr = 0;
		1865
		1866	sv_clear_foreign (data);
		1867
		1868	if (length) /* known length, directly read into scalar */
		1869	{
		1870	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1871	svptr = sv_grow (data, length + 1);
		1872	else if (SvCUR (data) < length)
		1873	croak ("length outside of scalar, and cannot grow");
		1874	else
		1875	svptr = SvPVbyte_nolen (data);
		1876	}
		1877
		1878	{
		1879	dREQ;
		1880
		1881	req->type = EIO_SLURP;
		1882	req_set_path1 (req, pathname);
		1883	req->offs = offset;
		1884	req->size = length;
		1885	req->sv2 = SvREFCNT_inc (data);
		1886	req->ptr2 = svptr;
		1887
		1888	if (!SvREADONLY (data))
		1889	{
		1890	SvREADONLY_on (data);
		1891	req->flags |= FLAG_SV2_RO_OFF;
		1892	}
		1893
		1894	REQ_SEND;
		1895	}
		1896	}
		1897
		1898	void
1303	aio_busy (double delay, SV *callback=&PL_sv_undef)	1899	aio_busy (double delay, SV *callback = &PL_sv_undef)
1304	PPCODE:	1900	PPCODE:
1305	{	1901	{
1306	dREQ;	1902	dREQ;
1307		1903
1308	req->type = EIO_BUSY;	1904	req->type = EIO_BUSY;
…		…
1310		1906
1311	REQ_SEND;	1907	REQ_SEND;
1312	}	1908	}
1313		1909
1314	void	1910	void
1315	aio_group (SV *callback=&PL_sv_undef)	1911	aio_group (SV *callback = &PL_sv_undef)
1316	PPCODE:	1912	PPCODE:
1317	{	1913	{
1318	dREQ;	1914	dREQ;
1319		1915
1320	req->type = EIO_GROUP;	1916	req->type = EIO_GROUP;
1321		1917
		1918	PUTBACK;
1322	req_submit (req);	1919	req_submit (req);
		1920	SPAGAIN;
		1921
1323	XPUSHs (req_sv (req, aio_grp_stash));	1922	XPUSHs (req_sv (req, aio_grp_stash));
1324	}	1923	}
1325		1924
1326	void	1925	void
1327	aio_nop (SV *callback=&PL_sv_undef)	1926	aio_nop (SV *callback = &PL_sv_undef)
1328	ALIAS:	1927	ALIAS:
1329	aio_nop = EIO_NOP	1928	aio_nop = EIO_NOP
1330	aio_sync = EIO_SYNC	1929	aio_sync = EIO_SYNC
1331	PPCODE:	1930	PPCODE:
1332	{	1931	{
…		…
1336		1935
1337	REQ_SEND;	1936	REQ_SEND;
1338	}	1937	}
1339		1938
1340	int	1939	int
1341	aioreq_pri (int pri = 0)	1940	aioreq_pri (int pri = NO_INIT)
1342	CODE:	1941	CODE:
1343	RETVAL = next_pri;	1942	RETVAL = next_pri;
1344	if (items > 0)	1943	if (items > 0)
1345	{	1944	{
1346	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1945	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1428	CODE:	2027	CODE:
1429	RETVAL = posix_fadvise (fh, offset, length, advice);	2028	RETVAL = posix_fadvise (fh, offset, length, advice);
1430	OUTPUT:	2029	OUTPUT:
1431	RETVAL	2030	RETVAL
1432		2031
1433	ssize_t	2032	IV
1434	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	2033	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1435	CODE:	2034	CODE:
1436	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2035	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1437	OUTPUT:	2036	OUTPUT:
1438	RETVAL	2037	RETVAL
1439		2038
1440	void	2039	void
1441	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2040	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1442	PPCODE:	2041	PPCODE:
1443	sv_unmagic (scalar, MMAP_MAGIC);	2042	sv_clear_foreign (scalar);
1444	{	2043	{
1445	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2044	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1446	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2045	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1447	if (addr == (void *)-1)	2046	if (addr == (void *)-1)
1448	XSRETURN_NO;	2047	XSRETURN_NO;
1449		2048
1450	sv_force_normal (scalar);	2049	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1451
1452	/* we store the length in mg_obj, as namlen is I32 :/ */
1453	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1454	->mg_obj = (SV *)length;
1455
1456	SvUPGRADE (scalar, SVt_PV); /* nop... */
1457		2050
1458	if (!(prot & PROT_WRITE))	2051	if (!(prot & PROT_WRITE))
1459	SvREADONLY_on (scalar);	2052	SvREADONLY_on (scalar);
1460		2053
1461	if (SvLEN (scalar))
1462	Safefree (SvPVX (scalar));
1463
1464	SvPVX (scalar) = (char *)addr;
1465	SvCUR_set (scalar, length);
1466	SvLEN_set (scalar, 0);
1467	SvPOK_only (scalar);
1468
1469	XSRETURN_YES;	2054	XSRETURN_YES;
1470	}	2055	}
1471		2056
1472	void	2057	void
1473	munmap (SV *scalar)	2058	munmap (SV *scalar)
1474	CODE:	2059	CODE:
1475	sv_unmagic (scalar, MMAP_MAGIC);	2060	sv_clear_foreign (scalar);
1476		2061
1477	int	2062	int
1478	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2063	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1479	ALIAS:	2064	ALIAS:
1480	mprotect = 1	2065	mprotect = 1
1481	CODE:	2066	CODE:
1482	{	2067	{
1483	STRLEN svlen;	2068	STRLEN svlen;
1484	void *addr = SvPVbyte (scalar, svlen);	2069	void *addr = SvPVbyte (scalar, svlen);
1485	size_t len = SvUV (length);	2070	STRLEN len = SvUV (length);
1486		2071
1487	if (offset < 0)	2072	if (offset < 0)
1488	offset += svlen;	2073	offset += svlen;
1489		2074
1490	if (offset < 0 || offset > svlen)	2075	if (offset < 0 || offset > svlen)
…		…
1504	}	2089	}
1505	OUTPUT:	2090	OUTPUT:
1506	RETVAL	2091	RETVAL
1507		2092
1508	int	2093	int
1509	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2094	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1510	CODE:	2095	CODE:
1511	{	2096	{
1512	STRLEN svlen;	2097	STRLEN svlen;
1513	void *addr = SvPVbyte (scalar, svlen);	2098	void *addr = SvPVbyte (scalar, svlen);
1514	size_t len = SvUV (length);	2099	size_t len = SvUV (length);
1515		2100
1516	if (offset < 0)	2101	if (offset < 0)
1517	offset += svlen;	2102	offset += svlen;
1518		2103
…		…
1522	if (!SvOK (length) || len + offset > svlen)	2107	if (!SvOK (length) || len + offset > svlen)
1523	len = svlen - offset;	2108	len = svlen - offset;
1524		2109
1525	addr = (void *)(((intptr_t)addr) + offset);	2110	addr = (void *)(((intptr_t)addr) + offset);
1526	eio_page_align (&addr, &len);	2111	eio_page_align (&addr, &len);
1527	#if _POSIX_MEMLOCK	2112	#if _POSIX_MEMLOCK_RANGE
1528	RETVAL = munlock (addr, len);	2113	RETVAL = munlock (addr, len);
1529	#else	2114	#else
1530	RETVAL = ((errno = ENOSYS), -1);	2115	RETVAL = EIO_ENOSYS ();
1531	#endif	2116	#endif
1532	}	2117	}
1533	OUTPUT:	2118	OUTPUT:
1534	RETVAL	2119	RETVAL
1535		2120
…		…
1537	munlockall ()	2122	munlockall ()
1538	CODE:	2123	CODE:
1539	#if _POSIX_MEMLOCK	2124	#if _POSIX_MEMLOCK
1540	munlockall ();	2125	munlockall ();
1541	#else	2126	#else
1542	RETVAL = -1;	2127	RETVAL = EIO_ENOSYS ();
1543	errno = ENOSYS;
1544	#endif	2128	#endif
1545	OUTPUT:	2129	OUTPUT:
1546	RETVAL	2130	RETVAL
		2131
		2132	int
		2133	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2134	CODE:
		2135	{
		2136	#if HAVE_LINUX_SPLICE
		2137	loff_t off_in_, off_out_;
		2138	RETVAL = splice (
		2139	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2140	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2141	length, flags
		2142	);
		2143	#else
		2144	RETVAL = EIO_ENOSYS ();
		2145	#endif
		2146	}
		2147	OUTPUT:
		2148	RETVAL
		2149
		2150	int
		2151	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2152	CODE:
		2153	#if HAVE_LINUX_SPLICE
		2154	RETVAL = tee (rfh, wfh, length, flags);
		2155	#else
		2156	RETVAL = EIO_ENOSYS ();
		2157	#endif
		2158	OUTPUT:
		2159	RETVAL
		2160
		2161	int
		2162	pipesize (aio_rfd rfh, int new_size = -1)
		2163	PROTOTYPE: $;$
		2164	CODE:
		2165	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2166	if (new_size >= 0)
		2167	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2168	else
		2169	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2170	#else
		2171	errno = ENOSYS;
		2172	RETVAL = -1;
		2173	#endif
		2174	OUTPUT:
		2175	RETVAL
		2176
		2177	void
		2178	pipe2 (int flags = 0)
		2179	PROTOTYPE: ;$
		2180	PPCODE:
		2181	{
		2182	int fd[2];
		2183	int res;
		2184
		2185	if (flags)
		2186	#if HAVE_PIPE2
		2187	res = pipe2 (fd, flags);
		2188	#else
		2189	res = (errno = ENOSYS, -1);
		2190	#endif
		2191	else
		2192	res = pipe (fd);
		2193
		2194	if (!res)
		2195	{
		2196	EXTEND (SP, 2);
		2197	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2198	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2199	}
		2200	}
		2201
		2202	void
		2203	eventfd (unsigned int initval = 0, int flags = 0)
		2204	PPCODE:
		2205	{
		2206	int fd;
		2207	#if HAVE_EVENTFD
		2208	fd = eventfd (initval, flags);
		2209	#else
		2210	fd = (errno = ENOSYS, -1);
		2211	#endif
		2212
		2213	XPUSHs (newmortalFH (fd, O_RDWR));
		2214	}
		2215
		2216	void
		2217	timerfd_create (int clockid, int flags = 0)
		2218	PPCODE:
		2219	{
		2220	int fd;
		2221	#if HAVE_TIMERFD
		2222	fd = timerfd_create (clockid, flags);
		2223	#else
		2224	fd = (errno = ENOSYS, -1);
		2225	#endif
		2226
		2227	XPUSHs (newmortalFH (fd, O_RDWR));
		2228	}
		2229
		2230	void
		2231	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2232	PPCODE:
		2233	{
		2234	int fd = s_fileno_croak (fh, 0);
		2235	#if HAVE_TIMERFD
		2236	int res;
		2237	struct itimerspec its, ots;
		2238
		2239	ts_set (&its.it_interval, interval);
		2240	ts_set (&its.it_value , value);
		2241	res = timerfd_settime (fd, flags, &its, &ots);
		2242
		2243	if (!res)
		2244	{
		2245	EXTEND (SP, 2);
		2246	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2247	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2248	}
		2249	#else
		2250	errno = ENOSYS;
		2251	#endif
		2252	}
		2253
		2254	void
		2255	timerfd_gettime (SV *fh)
		2256	PPCODE:
		2257	{
		2258	int fd = s_fileno_croak (fh, 0);
		2259	#if HAVE_TIMERFD
		2260	int res;
		2261	struct itimerspec ots;
		2262	res = timerfd_gettime (fd, &ots);
		2263
		2264	if (!res)
		2265	{
		2266	EXTEND (SP, 2);
		2267	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2268	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2269	}
		2270	#else
		2271	errno = ENOSYS;
		2272	#endif
		2273	}
		2274
		2275	UV
		2276	get_fdlimit ()
		2277	CODE:
		2278	#if HAVE_RLIMITS
		2279	struct rlimit rl;
		2280	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2281	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2282	#endif
		2283	XSRETURN_UNDEF;
		2284	OUTPUT:
		2285	RETVAL
		2286
		2287	void
		2288	min_fdlimit (UV limit = 0x7fffffffU)
		2289	CODE:
		2290	{
		2291	#if HAVE_RLIMITS
		2292	struct rlimit rl;
		2293	rlim_t orig_rlim_max;
		2294	UV bit;
		2295
		2296	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2297	goto fail;
		2298
		2299	if (rl.rlim_cur == RLIM_INFINITY)
		2300	XSRETURN_YES;
		2301
		2302	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2303
		2304	if (rl.rlim_cur < limit)
		2305	{
		2306	rl.rlim_cur = limit;
		2307
		2308	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2309	rl.rlim_max = rl.rlim_cur;
		2310	}
		2311
		2312	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2313	XSRETURN_YES;
		2314
		2315	if (errno == EPERM)
		2316	{
		2317	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2318	/* our limit overflows a system-wide limit */
		2319	/* try an adaptive algorithm, but do not lower the hardlimit */
		2320	rl.rlim_max = 0;
		2321	for (bit = 0x40000000U; bit; bit >>= 1)
		2322	{
		2323	rl.rlim_max |= bit;
		2324	rl.rlim_cur = rl.rlim_max;
		2325
		2326	/* nevr decrease the hard limit */
		2327	if (rl.rlim_max < orig_rlim_max)
		2328	break;
		2329
		2330	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2331	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2332	}
		2333
		2334	/* now, raise the soft limit to the max permitted */
		2335	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2336	{
		2337	rl.rlim_cur = rl.rlim_max;
		2338	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2339	errno = EPERM;
		2340	}
		2341	}
		2342	#endif
		2343	fail:
		2344	XSRETURN_UNDEF;
		2345	}
1547		2346
1548	void _on_next_submit (SV *cb)	2347	void _on_next_submit (SV *cb)
1549	CODE:	2348	CODE:
1550	SvREFCNT_dec (on_next_submit);	2349	SvREFCNT_dec (on_next_submit);
1551	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2350	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1552		2351
1553	PROTOTYPES: DISABLE	2352	PROTOTYPES: DISABLE
1554		2353
		2354	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2355
		2356	BOOT:
		2357	{
		2358	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2359	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2360	}
		2361
		2362	void
		2363	DESTROY (SV *self)
		2364	CODE:
		2365	{
		2366	aio_wd wd = SvAIO_WD (self);
		2367	#if HAVE_AT
		2368	{
		2369	SV *callback = &PL_sv_undef;
		2370	dREQ; /* clobbers next_pri :/ */
		2371	next_pri = req->pri; /* restore next_pri */
		2372	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2373	req->type = EIO_WD_CLOSE;
		2374	req->wd = wd;
		2375	REQ_SEND;
		2376	}
		2377	#else
		2378	eio_wd_close_sync (wd);
		2379	#endif
		2380	}
		2381
1555	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2382	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1556		2383
1557	void	2384	void
1558	cancel (aio_req_ornot req)	2385	cancel (aio_req_ornot req)
1559	CODE:	2386	CODE:
1560	eio_cancel (req);	2387	eio_cancel (req);
1561		2388
1562	void	2389	void
1563	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2390	cb (aio_req_ornot req, SV *callback = NO_INIT)
1564	PPCODE:	2391	PPCODE:
1565	{	2392	{
1566	if (GIMME_V != G_VOID)	2393	if (GIMME_V != G_VOID)
1567	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2394	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1568		2395
1569	if (items > 1)	2396	if (items > 1)
1570	{	2397	{
1571	SV *cb_cv =get_cb (callback);	2398	SV *cb_cv = get_cb (callback);
1572		2399
1573	SvREFCNT_dec (req->callback);	2400	SvREFCNT_dec (req->callback);
1574	req->callback = SvREFCNT_inc (cb_cv);	2401	req->callback = SvREFCNT_inc (cb_cv);
1575	}	2402	}
1576	}	2403	}
…		…
1633	limit (aio_req grp, int limit)	2460	limit (aio_req grp, int limit)
1634	CODE:	2461	CODE:
1635	eio_grp_limit (grp, limit);	2462	eio_grp_limit (grp, limit);
1636		2463
1637	void	2464	void
1638	feed (aio_req grp, SV *callback=&PL_sv_undef)	2465	feed (aio_req grp, SV *callback = &PL_sv_undef)
1639	CODE:	2466	CODE:
1640	{	2467	{
1641	SvREFCNT_dec (grp->sv2);	2468	SvREFCNT_dec (grp->sv2);
1642	grp->sv2 = newSVsv (callback);	2469	grp->sv2 = newSVsv (callback);
1643	grp->feed = aio_grp_feed;	2470	grp->feed = aio_grp_feed;

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