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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.176 by root, Thu Dec 2 10:04:47 2010 UTC vs.
Revision 1.252 by root, Sat Jan 6 02:11:10 2018 UTC

…		…
11	#include <stddef.h>	11	#include <stddef.h>
12	#include <stdlib.h>	12	#include <stdlib.h>
13	#include <errno.h>	13	#include <errno.h>
14	#include <sys/types.h>	14	#include <sys/types.h>
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <sys/statvfs.h>
17	#include <limits.h>	16	#include <limits.h>
18	#include <fcntl.h>	17	#include <fcntl.h>
19	#include <sched.h>	18	#include <sched.h>
20		19
21	#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22	# include <sys/mman.h>	21	# include <sys/mman.h>
		22	#endif
		23
		24	/* the incompetent fool that created musl keeps __linux__, refuses
		25	* to implement any linux standard apis, and also has no way to test
		26	* for his broken iplementation. don't complain to me if this fails
		27	* for you.
		28	*/
		29	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		30	# include <linux/fs.h>
		31	# ifdef FS_IOC_FIEMAP
		32	# include <linux/types.h>
		33	# include <linux/fiemap.h>
		34	# define HAVE_FIEMAP 1
		35	# endif
23	#endif	36	#endif
24		37
25	/* perl namespace pollution */	38	/* perl namespace pollution */
26	#undef VERSION	39	#undef VERSION
27
28	#ifdef _WIN32
29
30	# define EIO_STRUCT_DIRENT Direntry_t
31	# undef malloc
32	# undef free
33
34	// perl overrides all those nice win32 functions
35	# undef open
36	# undef read
37	# undef write
38	# undef send
39	# undef recv
40	# undef stat
41	# undef fstat
42	# define lstat stat
43	# undef truncate
44	# undef ftruncate
45	# undef open
46	# undef close
47	# undef unlink
48	# undef rmdir
49	# undef rename
50	# undef lseek
51
52	# define chown(a,b,c) (errno = ENOSYS, -1)
53	# define fchown(a,b,c) (errno = ENOSYS, -1)
54	# define fchmod(a,b) (errno = ENOSYS, -1)
55	# define symlink(a,b) (errno = ENOSYS, -1)
56	# define readlink(a,b,c) (errno = ENOSYS, -1)
57	# define mknod(a,b,c) (errno = ENOSYS, -1)
58	# define truncate(a,b) (errno = ENOSYS, -1)
59	# define ftruncate(fd,o) chsize ((fd), (o))
60	# define fsync(fd) _commit (fd)
61	# define opendir(fd) (errno = ENOSYS, 0)
62	# define readdir(fd) (errno = ENOSYS, -1)
63	# define closedir(fd) (errno = ENOSYS, -1)
64	# define mkdir(a,b) mkdir (a)
65
66	#else
67
68	# include <sys/time.h>
69	# include <sys/select.h>
70	# include <unistd.h>
71	# include <utime.h>
72	# include <signal.h>
73	# define EIO_STRUCT_DIRENT struct dirent
74
75	#endif
76		40
77	/* perl stupidly overrides readdir and maybe others */	41	/* perl stupidly overrides readdir and maybe others */
78	/* with thread-unsafe versions, imagine that :( */	42	/* with thread-unsafe versions, imagine that :( */
79	#undef readdir	43	#undef readdir
80	#undef opendir	44	#undef opendir
81	#undef closedir	45	#undef closedir
82		46
		47	#ifdef _WIN32
		48
		49	// perl overrides all those nice libc functions
		50
		51	#undef malloc
		52	#undef free
		53	#undef open
		54	#undef read
		55	#undef write
		56	#undef send
		57	#undef recv
		58	#undef stat
		59	#undef lstat
		60	#undef fstat
		61	#undef truncate
		62	#undef ftruncate
		63	#undef open
		64	#undef link
		65	#undef close
		66	#undef unlink
		67	#undef mkdir
		68	#undef rmdir
		69	#undef rename
		70	#undef lseek
		71	#undef opendir
		72	#undef readdir
		73	#undef closedir
		74	#undef chmod
		75	#undef fchmod
		76	#undef dup
		77	#undef dup2
		78	#undef abort
		79	#undef pipe
		80
		81	#define EIO_STRUCT_STAT struct _stati64
83	#define EIO_STRUCT_STAT Stat_t	82	#define EIO_STRUCT_STATI64
84		83
85	/* use NV for 32 bit perls as it allows larger offsets */
86	#if IVSIZE >= 8
87	# define VAL64 IV
88	# define SvVAL64 SvIV
89	# define newSVval64 newSViv
90	#else	84	#else
91	# define VAL64 NV	85
92	# define SvVAL64 SvNV	86	#include <sys/time.h>
93	# define newSVval64 newSVnv	87	#include <sys/select.h>
		88	#include <unistd.h>
		89	#include <utime.h>
		90	#include <signal.h>
		91
		92	#define EIO_STRUCT_STAT Stat_t
		93
94	#endif	94	#endif
95		95
96	/*****************************************************************************/	96	/*****************************************************************************/
97		97
98	#if __GNUC__ >= 3	98	#if __GNUC__ >= 3
…		…
104	#define expect_false(expr) expect ((expr) != 0, 0)	104	#define expect_false(expr) expect ((expr) != 0, 0)
105	#define expect_true(expr) expect ((expr) != 0, 1)	105	#define expect_true(expr) expect ((expr) != 0, 1)
106		106
107	/*****************************************************************************/	107	/*****************************************************************************/
108		108
		109	#include "libeio/config.h"
		110
		111	#if HAVE_RLIMITS
		112	#include <sys/time.h>
		113	#include <sys/resource.h>
		114	#endif
		115
109	typedef SV SV8; /* byte-sv, used for argument-checking */	116	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	117	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	118	typedef int aio_wfd; /* write file descriptor */
112		119
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	120	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		121
115	#define EIO_REQ_MEMBERS \	122	#define EIO_REQ_MEMBERS \
116	SV *callback; \	123	SV *callback; \
117	SV *sv1, *sv2; \	124	SV *sv1, *sv2; \
		125	SV *sv3, *sv4; \
118	STRLEN stroffset; \	126	STRLEN stroffset; \
119	SV *self;	127	SV *self;
120		128
121	#define EIO_NO_WRAPPERS 1	129	#define EIO_NO_WRAPPERS 1
122		130
123	#include "libeio/config.h"
124	#include "libeio/eio.h"	131	#include "libeio/eio.h"
125		132
126	#ifndef POSIX_FADV_NORMAL	133	static int req_invoke (eio_req *req);
127	# define POSIX_FADV_NORMAL 0	134	#define EIO_FINISH(req) req_invoke (req)
128	#endif	135	static void req_destroy (eio_req *grp);
129	#ifndef POSIX_FADV_SEQUENTIAL	136	#define EIO_DESTROY(req) req_destroy (req)
130	# define POSIX_FADV_SEQUENTIAL 0	137
131	#endif	138	#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		139
145	#if !HAVE_POSIX_FADVISE	140	#if !HAVE_POSIX_FADVISE
146	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	141	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
147	#endif	142	#endif
148		143
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	144	#if !HAVE_POSIX_MADVISE
166	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	145	# 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	146	#endif
212		147
213	#ifndef MAP_ANONYMOUS	148	#ifndef MAP_ANONYMOUS
214	# ifdef MAP_ANON	149	# ifdef MAP_ANON
215	# define MAP_ANONYMOUS MAP_ANON	150	# define MAP_ANONYMOUS MAP_ANON
216	# else	151	# else
217	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	152	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
218	# endif	153	# endif
219	#endif	154	#endif
220	#ifndef MAP_HUGETLB
221	# define MAP_HUGETLB 0
222	#endif
223	#ifndef MAP_LOCKED
224	# define MAP_LOCKED 0
225	#endif
226	#ifndef MAP_NORESERVE
227	# define MAP_NORESERVE 0
228	#endif
229	#ifndef MAP_POPULATE
230	# define MAP_POPULATE 0
231	#endif
232	#ifndef MAP_NONBLOCK
233	# define MAP_NONBLOCK 0
234	#endif
235		155
236	#ifndef PAGESIZE	156	/* defines all sorts of constants to 0 unless they are already defined */
		157	/* also provides const_iv_ and const_niv_ macros for them */
		158	#include "def0.h"
		159
		160	#ifndef makedev
		161	# define makedev(maj,min) (((maj) << 8) | (min))
		162	#endif
		163	#ifndef major
		164	# define major(dev) ((dev) >> 8)
		165	#endif
		166	#ifndef minor
		167	# define minor(dev) ((dev) & 0xff)
		168	#endif
		169
		170	#if PAGESIZE <= 0
237	# define PAGESIZE sysconf (_SC_PAGESIZE)	171	# define PAGESIZE sysconf (_SC_PAGESIZE)
238	#endif	172	#endif
239		173
240	static int req_invoke (eio_req *req);	174	/*****************************************************************************/
241	#define EIO_FINISH(req) req_invoke (req)	175
242	static void req_destroy (eio_req *grp);	176	#if !_POSIX_MAPPED_FILES
243	#define EIO_DESTROY(req) req_destroy (req)	177	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		178	# define munmap(addr,length) EIO_ENOSYS ()
		179	#endif
		180
		181	#if !_POSIX_MEMORY_PROTECTION
		182	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		183	#endif
		184
		185	#define FOREIGN_MAGIC PERL_MAGIC_ext
		186
		187	static int ecb_cold
		188	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		189	{
		190	int old_errno = errno;
		191	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		192	errno = old_errno;
		193
		194	mg->mg_obj = 0; /* just in case */
		195
		196	SvREADONLY_off (sv);
		197
		198	if (SvPVX (sv) != mg->mg_ptr)
		199	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		200
		201	SvCUR_set (sv, 0);
		202	SvPVX (sv) = 0;
		203	SvOK_off (sv);
		204
		205	return 0;
		206	}
		207
		208	static MGVTBL mmap_vtbl = {
		209	0, 0, 0, 0, mmap_free
		210	};
		211
		212	static int ecb_cold
		213	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		214	{
		215	free (mg->mg_ptr);
		216	mg->mg_obj = 0; /* just in case */
		217
		218	SvREADONLY_off (sv);
		219
		220	if (SvPVX (sv) != mg->mg_ptr)
		221	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		222
		223	SvCUR_set (sv, 0);
		224	SvPVX (sv) = 0;
		225	SvOK_off (sv);
		226
		227	return 0;
		228	}
		229
		230	static MGVTBL sysfree_vtbl = {
		231	0, 0, 0, 0, sysfree_free
		232	};
		233
		234	/*****************************************************************************/
		235
		236	/* helper: set scalar to foreign ptr with custom free */
		237	static void
		238	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		239	{
		240	sv_force_normal (sv);
		241
		242	/* we store the length in mg_obj, as namlen is I32 :/ */
		243	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		244	->mg_obj = (SV *)length;
		245
		246	SvUPGRADE (sv, SVt_PV); /* nop... */
		247
		248	if (SvLEN (sv))
		249	Safefree (SvPVX (sv));
		250
		251	SvPVX (sv) = (char *)addr;
		252	SvCUR_set (sv, length);
		253	SvLEN_set (sv, 0);
		254	SvPOK_only (sv);
		255	}
		256
		257	static void
		258	sv_clear_foreign (SV *sv)
		259	{
		260	/* todo: iterate over magic and only free ours, but of course */
		261	/* the perl5porters will call that (correct) behaviour buggy */
		262	sv_unmagic (sv, FOREIGN_MAGIC);
		263	}
		264
		265	/*****************************************************************************/
		266
		267	static void
		268	fiemap (eio_req *req)
		269	{
		270	req->result = -1;
		271
		272	#if HAVE_FIEMAP
		273	/* assume some c99 */
		274	struct fiemap *fiemap = 0;
		275	size_t end_offset;
		276	int count = req->int3;
		277
		278	req->flags |= EIO_FLAG_PTR1_FREE;
		279
		280	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		281	/* increase in 3.5kb steps */
		282	if (count < 0)
		283	count = 8;
		284
		285	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		286	errno = ENOMEM;
		287	if (!fiemap)
		288	return;
		289
		290	req->ptr1 = fiemap;
		291
		292	fiemap->fm_start = req->offs;
		293	fiemap->fm_length = req->size;
		294	fiemap->fm_flags = req->int2;
		295	fiemap->fm_extent_count = count;
		296
		297	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		298	return;
		299
		300	if (req->int3 >= 0 /* not autosizing */
		301	|| !fiemap->fm_mapped_extents /* no more extents */
		302	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		303	goto done;
		304
		305	/* else we have to loop -
		306	* it would be tempting (actually I tried that first) to just query the
		307	* number of extents needed, but linux often feels like not returning all
		308	* extents, without telling us it left any out. this complicates
		309	* this quite a bit.
		310	*/
		311
		312	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		313
		314	for (;;)
		315	{
		316	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		317	char scratch[3072];
		318	struct fiemap *incmap = (struct fiemap *)scratch;
		319
		320	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		321	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		322	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		323	incmap->fm_flags = fiemap->fm_flags;
		324	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		325
		326	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		327	return;
		328
		329	if (!incmap->fm_mapped_extents)
		330	goto done;
		331
		332	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		333	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		334	errno = ENOMEM;
		335	if (!fiemap)
		336	return;
		337
		338	req->ptr1 = fiemap;
		339
		340	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		341	{
		342	struct fiemap_extent *e = incmap->fm_extents + count;
		343
		344	if (e->fe_logical + e->fe_length >= end_offset)
		345	goto done;
		346
		347	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		348
		349	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		350	goto done;
		351
		352	}
		353	}
		354
		355	done:
		356	req->result = 0;
		357
		358	#else
		359	errno = ENOSYS;
		360	#endif
		361	}
		362
		363	/*****************************************************************************/
244		364
245	enum {	365	enum {
246	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	366	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
247	};	367	};
248		368
249	#include "libeio/eio.c"
250
251	typedef eio_req *aio_req;	369	typedef eio_req *aio_req;
252	typedef eio_req *aio_req_ornot;	370	typedef eio_req *aio_req_ornot;
		371	typedef eio_wd aio_wd;
253		372
254	static SV *on_next_submit;	373	static SV *on_next_submit;
255	static int next_pri = EIO_PRI_DEFAULT;	374	static int next_pri = EIO_PRI_DEFAULT;
256	static int max_outstanding;	375	static int max_outstanding;
257		376
258	static s_epipe respipe;	377	static s_epipe respipe;
259		378
260	static void req_destroy (aio_req req);	379	static void req_destroy (aio_req req);
261	static void req_cancel (aio_req req);	380	static void req_cancel (aio_req req);
262		381
263	static void want_poll (void)	382	static void
		383	want_poll (void)
264	{	384	{
265	/* write a dummy byte to the pipe so fh becomes ready */	385	/* write a dummy byte to the pipe so fh becomes ready */
266	s_epipe_signal (&respipe);	386	s_epipe_signal (&respipe);
267	}	387	}
268		388
269	static void done_poll (void)	389	static void
		390	done_poll (void)
270	{	391	{
271	/* read any signals sent by the worker threads */	392	/* read any signals sent by the worker threads */
272	s_epipe_drain (&respipe);	393	s_epipe_drain (&respipe);
273	}	394	}
274		395
275	/* must be called at most once */	396	/* must be called at most once */
		397	static SV *
276	static SV *req_sv (aio_req req, HV *stash)	398	req_sv (aio_req req, HV *stash)
277	{	399	{
278	if (!req->self)	400	if (!req->self)
279	{	401	{
280	req->self = (SV *)newHV ();	402	req->self = (SV *)newHV ();
281	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	403	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
282	}	404	}
283		405
284	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	406	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
285	}	407	}
286		408
287	static aio_req SvAIO_REQ (SV *sv)	409	static SV *
		410	newSVaio_wd (aio_wd wd)
		411	{
		412	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		413	}
		414
		415	static aio_req
		416	SvAIO_REQ (SV *sv)
288	{	417	{
289	MAGIC *mg;	418	MAGIC *mg;
290		419
291	if (!SvROK (sv)	420	if (!SvROK (sv)
		421	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
292	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	422	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
293	&& SvSTASH (SvRV (sv)) != aio_req_stash	423	&& SvSTASH (SvRV (sv)) != aio_req_stash
294	&& !sv_derived_from (sv, "IO::AIO::REQ")))	424	&& !sv_derived_from (sv, "IO::AIO::REQ")))
295	croak ("object of class IO::AIO::REQ expected");	425	croak ("object of class IO::AIO::REQ expected");
296		426
297	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	427	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
298		428
299	return mg ? (aio_req)mg->mg_ptr : 0;	429	return mg ? (aio_req)mg->mg_ptr : 0;
300	}	430	}
301		431
		432	static aio_wd
		433	SvAIO_WD (SV *sv)
		434	{
		435	if (!SvROK (sv)
		436	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		437	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		438	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		439
		440	return (aio_wd)(long)SvIVX (SvRV (sv));
		441	}
		442
		443	static SV *
		444	newmortalFH (int fd, int flags)
		445	{
		446	if (fd < 0)
		447	return &PL_sv_undef;
		448
		449	GV *gv = (GV *)sv_newmortal ();
		450	char sym[64];
		451	int symlen;
		452
		453	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		454	gv_init (gv, aio_stash, sym, symlen, 0);
		455
		456	symlen = snprintf (
		457	sym,
		458	sizeof (sym),
		459	"%s&=%d",
		460	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		461	fd
		462	);
		463
		464	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		465	? (SV *)gv : &PL_sv_undef;
		466	}
		467
		468	static void
302	static void aio_grp_feed (aio_req grp)	469	aio_grp_feed (aio_req grp)
303	{	470	{
304	if (grp->sv2 && SvOK (grp->sv2))	471	if (grp->sv2 && SvOK (grp->sv2))
305	{	472	{
306	dSP;	473	dSP;
307		474
…		…
315	FREETMPS;	482	FREETMPS;
316	LEAVE;	483	LEAVE;
317	}	484	}
318	}	485	}
319		486
		487	static void
320	static void req_submit (eio_req *req)	488	req_submit (eio_req *req)
321	{	489	{
322	eio_submit (req);	490	eio_submit (req);
323		491
324	if (expect_false (on_next_submit))	492	if (expect_false (on_next_submit))
325	{	493	{
…		…
332	PUTBACK;	500	PUTBACK;
333	call_sv (cb, G_DISCARD | G_EVAL);	501	call_sv (cb, G_DISCARD | G_EVAL);
334	}	502	}
335	}	503	}
336		504
		505	static int
337	static int req_invoke (eio_req *req)	506	req_invoke (eio_req *req)
338	{	507	{
339	if (req->flags & FLAG_SV2_RO_OFF)	508	if (req->flags & FLAG_SV2_RO_OFF)
340	SvREADONLY_off (req->sv2);	509	SvREADONLY_off (req->sv2);
341		510
342	if (!EIO_CANCELLED (req) && req->callback)	511	if (!EIO_CANCELLED (req) && req->callback)
…		…
353	/* do not recreate the result IV from scratch each time */	522	/* do not recreate the result IV from scratch each time */
354	if (expect_true (sv_result_cache))	523	if (expect_true (sv_result_cache))
355	{	524	{
356	sv_result = sv_result_cache; sv_result_cache = 0;	525	sv_result = sv_result_cache; sv_result_cache = 0;
357	SvIV_set (sv_result, req->result);	526	SvIV_set (sv_result, req->result);
		527	SvIOK_only (sv_result);
358	}	528	}
359	else	529	else
360	{	530	{
361	sv_result = newSViv (req->result);	531	sv_result = newSViv (req->result);
362	SvREADONLY_on (sv_result);	532	SvREADONLY_on (sv_result);
363	}	533	}
364		534
365	switch (req->type)	535	switch (req->type)
366	{	536	{
		537	case EIO_WD_OPEN:
		538	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		539	break;
		540
367	case EIO_READDIR:	541	case EIO_READDIR:
368	{	542	{
369	SV *rv = &PL_sv_undef;	543	SV *rv = &PL_sv_undef;
370		544
371	if (req->result >= 0)	545	if (req->result >= 0)
…		…
424	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	598	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
425	}	599	}
426	break;	600	break;
427		601
428	case EIO_OPEN:	602	case EIO_OPEN:
429	{	603	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
430	/* convert fd to fh */
431	SV *fh = &PL_sv_undef;
432
433	if (req->result >= 0)
434	{
435	GV *gv = (GV *)sv_newmortal ();
436	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
437	char sym [64];
438	int symlen;
439
440	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
441	gv_init (gv, aio_stash, sym, symlen, 0);
442
443	symlen = snprintf (
444	sym,
445	sizeof (sym),
446	"%s&=%d",
447	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
448	(int)req->result
449	);
450
451	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
452	fh = (SV *)gv;
453	}
454
455	PUSHs (fh);
456	}
457	break;	604	break;
458		605
459	case EIO_STATVFS:	606	case EIO_STATVFS:
460	case EIO_FSTATVFS:	607	case EIO_FSTATVFS:
461	{	608	{
462	SV *rv = &PL_sv_undef;	609	SV *rv = &PL_sv_undef;
463		610
		611	#ifndef _WIN32
464	if (req->result >= 0)	612	if (req->result >= 0)
465	{	613	{
466	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	614	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
467	HV *hv = newHV ();	615	HV *hv = newHV ();
		616	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		617	* chooses to make it a struct.
		618	*/
		619	unsigned long fsid = 0;
		620	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
468		621
469	rv = sv_2mortal (newRV_noinc ((SV *)hv));	622	rv = sv_2mortal (newRV_noinc ((SV *)hv));
470		623
471	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	624	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
472	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	625	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
474	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	627	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
475	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	628	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
476	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	629	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
477	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	630	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
478	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	631	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
479	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	632	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
480	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	633	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
481	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	634	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
482	}	635	}
		636	#endif
483		637
484	PUSHs (rv);	638	PUSHs (rv);
485	}	639	}
486		640
487	break;	641	break;
…		…
503	case EIO_NOP:	657	case EIO_NOP:
504	case EIO_BUSY:	658	case EIO_BUSY:
505	break;	659	break;
506		660
507	case EIO_READLINK:	661	case EIO_READLINK:
		662	case EIO_REALPATH:
508	if (req->result > 0)	663	if (req->result > 0)
509	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	664	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
510	break;	665	break;
511		666
512	case EIO_STAT:	667	case EIO_STAT:
513	case EIO_LSTAT:	668	case EIO_LSTAT:
514	case EIO_FSTAT:	669	case EIO_FSTAT:
515	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	670	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		671
516	PL_laststatval = req->result;	672	if (!(PL_laststatval = req->result))
		673	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
517	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	674	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		675
518	PUSHs (sv_result);	676	PUSHs (sv_result);
		677	break;
		678
		679	case EIO_SEEK:
		680	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
519	break;	681	break;
520		682
521	case EIO_READ:	683	case EIO_READ:
522	{	684	{
523	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	685	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
526	SvSETMAGIC (req->sv2);	688	SvSETMAGIC (req->sv2);
527	PUSHs (sv_result);	689	PUSHs (sv_result);
528	}	690	}
529	break;	691	break;
530		692
		693	case EIO_SLURP:
		694	{
		695	if (req->result >= 0)
		696	{
		697	/* if length was originally not known, we steal the malloc'ed memory */
		698	if (req->flags & EIO_FLAG_PTR2_FREE)
		699	{
		700	req->flags &= ~EIO_FLAG_PTR2_FREE;
		701	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		702	}
		703	else
		704	{
		705	SvCUR_set (req->sv2, req->result);
		706	*SvEND (req->sv2) = 0;
		707	SvPOK_only (req->sv2);
		708	}
		709
		710	SvSETMAGIC (req->sv2);
		711	}
		712
		713	PUSHs (sv_result);
		714	}
		715	break;
		716
		717	case EIO_CUSTOM:
		718	if (req->feed == fiemap)
		719	{
		720	#if HAVE_FIEMAP
		721	if (!req->result)
		722	{
		723	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		724
		725	if (fiemap->fm_extent_count)
		726	{
		727	AV *av = newAV ();
		728	int i;
		729
		730	while (fiemap->fm_mapped_extents)
		731	{
		732	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		733	AV *ext_av = newAV ();
		734
		735	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		736	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		737	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		738	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		739
		740	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		741	}
		742
		743	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		744	}
		745	else
		746	{
		747	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		748	PUSHs (sv_result);
		749	}
		750	}
		751	#endif
		752	}
		753	else
		754	PUSHs (sv_result);
		755	break;
		756
531	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */	757	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
532	if (req->result > 0)	758	if (req->result > 0)
533	SvIV_set (sv_result, 0);	759	SvIV_set (sv_result, 0);
534	/* FALLTHROUGH */	760	/* FALLTHROUGH */
535		761
536	default:	762	default:
…		…
556	}	782	}
557		783
558	return !!SvTRUE (ERRSV);	784	return !!SvTRUE (ERRSV);
559	}	785	}
560		786
		787	static void
561	static void req_destroy (aio_req req)	788	req_destroy (aio_req req)
562	{	789	{
563	if (req->self)	790	if (req->self)
564	{	791	{
565	sv_unmagic (req->self, PERL_MAGIC_ext);	792	sv_unmagic (req->self, PERL_MAGIC_ext);
566	SvREFCNT_dec (req->self);	793	SvREFCNT_dec (req->self);
567	}	794	}
568		795
569	SvREFCNT_dec (req->sv1);	796	SvREFCNT_dec (req->sv1);
570	SvREFCNT_dec (req->sv2);	797	SvREFCNT_dec (req->sv2);
		798	SvREFCNT_dec (req->sv3);
		799	SvREFCNT_dec (req->sv4);
571	SvREFCNT_dec (req->callback);	800	SvREFCNT_dec (req->callback);
572		801
573	Safefree (req);	802	free (req);
574	}	803	}
575		804
		805	static void
576	static void req_cancel_subs (aio_req grp)	806	req_cancel_subs (aio_req grp)
577	{	807	{
578	aio_req sub;
579
580	if (grp->type != EIO_GROUP)	808	if (grp->type != EIO_GROUP)
581	return;	809	return;
582		810
583	SvREFCNT_dec (grp->sv2);	811	SvREFCNT_dec (grp->sv2);
584	grp->sv2 = 0;	812	grp->sv2 = 0;
585		813
586	eio_grp_cancel (grp);	814	eio_grp_cancel (grp);
587	}	815	}
588		816
589	static void	817	static void ecb_cold
590	create_respipe (void)	818	create_respipe (void)
591	{	819	{
592	if (s_epipe_renew (&respipe))	820	if (s_epipe_renew (&respipe))
593	croak ("IO::AIO: unable to initialize result pipe");	821	croak ("IO::AIO: unable to initialize result pipe");
594	}	822	}
595		823
596	static void poll_wait (void)	824	static void
		825	poll_wait (void)
597	{	826	{
598	while (eio_nreqs ())	827	while (eio_nreqs ())
599	{	828	{
600	int size;	829	int size;
601		830
602	X_LOCK (reslock);	831	X_LOCK (EIO_POOL->reslock);
603	size = res_queue.size;	832	size = EIO_POOL->res_queue.size;
604	X_UNLOCK (reslock);	833	X_UNLOCK (EIO_POOL->reslock);
605		834
606	if (size)	835	if (size)
607	return;	836	return;
608		837
609	etp_maybe_start_thread ();	838	etp_maybe_start_thread (EIO_POOL);
610		839
611	s_epipe_wait (&respipe);	840	s_epipe_wait (&respipe);
612	}	841	}
613	}	842	}
614		843
615	static int poll_cb (void)	844	static int
		845	poll_cb (void)
616	{	846	{
617	for (;;)	847	for (;;)
618	{	848	{
619	int res = eio_poll ();	849	int res = eio_poll ();
620		850
…		…
626		856
627	poll_wait ();	857	poll_wait ();
628	}	858	}
629	}	859	}
630		860
631	static void atfork_child (void)	861	static void ecb_cold
		862	reinit (void)
632	{	863	{
633	create_respipe ();	864	create_respipe ();
634	}
635		865
636	/*****************************************************************************/	866	if (eio_init (want_poll, done_poll) < 0)
637		867	croak ("IO::AIO: unable to initialise eio library");
638	#if !_POSIX_MAPPED_FILES
639	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
640	# define munmap(addr,length) (errno = ENOSYS, -1)
641	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
642	# define PROT_NONE 0
643	# define PROT_WRITE 0
644	# define MAP_PRIVATE 0
645	# define MAP_SHARED 0
646	# define MAP_FIXED 0
647	#endif
648
649	#define MMAP_MAGIC PERL_MAGIC_ext
650
651	static int
652	mmap_free (pTHX_ SV *sv, MAGIC *mg)
653	{
654	int old_errno = errno;
655	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
656	errno = old_errno;
657
658	mg->mg_obj = 0; /* just in case */
659
660	SvREADONLY_off (sv);
661
662	if (SvPVX (sv) != mg->mg_ptr)
663	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
664
665	SvCUR_set (sv, 0);
666	SvPVX (sv) = 0;
667	SvOK_off (sv);
668
669	return 0;
670	}	868	}
671
672	static MGVTBL mmap_vtbl = {
673	0, 0, 0, 0, mmap_free
674	};
675		869
676	/*****************************************************************************/	870	/*****************************************************************************/
677		871
678	static SV *	872	static SV *
679	get_cb (SV *cb_sv)	873	get_cb (SV *cb_sv)
680	{	874	{
681	SvGETMAGIC (cb_sv);	875	SvGETMAGIC (cb_sv);
682	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	876	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
683	}	877	}
684		878
		879	static aio_req ecb_noinline
		880	dreq (SV *callback)
		881	{
		882	SV *cb_cv;
		883	aio_req req;
		884	int req_pri = next_pri;
		885	next_pri = EIO_PRI_DEFAULT;
		886
		887	cb_cv = get_cb (callback);
		888
		889	req = calloc (sizeof (*req), 1);
		890	if (!req)
		891	croak ("out of memory during eio_req allocation");
		892
		893	req->callback = SvREFCNT_inc (cb_cv);
		894	req->pri = req_pri;
		895
		896	return req;
		897	}
		898
685	#define dREQ \	899	#define dREQ \
686	SV *cb_cv; \	900	aio_req req = dreq (callback); \
687	aio_req req; \
688	int req_pri = next_pri; \
689	next_pri = EIO_PRI_DEFAULT; \
690	\
691	cb_cv = get_cb (callback); \
692	\
693	Newz (0, req, 1, eio_req); \
694	if (!req) \
695	croak ("out of memory during eio_req allocation"); \
696	\
697	req->callback = SvREFCNT_inc (cb_cv); \
698	req->pri = req_pri
699		901
700	#define REQ_SEND \	902	#define REQ_SEND \
701	PUTBACK; \	903	PUTBACK; \
702	req_submit (req); \	904	req_submit (req); \
703	SPAGAIN; \	905	SPAGAIN; \
704	\	906	\
705	if (GIMME_V != G_VOID) \	907	if (GIMME_V != G_VOID) \
706	XPUSHs (req_sv (req, aio_req_stash));	908	XPUSHs (req_sv (req, aio_req_stash));
707		909
		910	ecb_inline void
		911	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		912	{
		913	if (expect_false (SvROK (path)))
		914	{
		915	SV *rv = SvRV (path);
		916	SV *wdob;
		917
		918	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		919	{
		920	path = AvARRAY (rv)[1];
		921	wdob = AvARRAY (rv)[0];
		922
		923	if (SvOK (wdob))
		924	{
		925	*wd = SvAIO_WD (wdob);
		926	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		927	}
		928	else
		929	*wd = EIO_INVALID_WD;
		930	}
		931	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		932	{
		933	*wd = (aio_wd)(long)SvIVX (rv);
		934	*wdsv = SvREFCNT_inc_NN (rv);
		935	*ptr = ".";
		936	return; /* path set to "." */
		937	}
		938	else
		939	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		940	}
		941
		942	*pathsv = newSVsv (path);
		943	*ptr = SvPVbyte_nolen (*pathsv);
		944	}
		945
		946	static void ecb_noinline
		947	req_set_path1 (aio_req req, SV *path)
		948	{
		949	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		950	}
		951
		952	static void ecb_noinline
		953	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		954	{
		955	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		956
		957	switch (SvTYPE (rv))
		958	{
		959	case SVt_PVIO:
		960	case SVt_PVLV:
		961	case SVt_PVGV:
		962	req->type = type_fh;
		963	req->sv1 = newSVsv (fh_or_path);
		964	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		965	break;
		966
		967	default:
		968	req->type = type_path;
		969	req_set_path1 (req, fh_or_path);
		970	break;
		971	}
		972	}
		973
		974	XS(boot_IO__AIO) ecb_cold;
		975
708	MODULE = IO::AIO PACKAGE = IO::AIO	976	MODULE = IO::AIO PACKAGE = IO::AIO
709		977
710	PROTOTYPES: ENABLE	978	PROTOTYPES: ENABLE
711		979
712	BOOT:	980	BOOT:
…		…
716	IV iv;	984	IV iv;
717	} *civ, const_iv[] = {	985	} *civ, const_iv[] = {
718	# define const_niv(name, value) { # name, (IV) value },	986	# define const_niv(name, value) { # name, (IV) value },
719	# define const_iv(name) { # name, (IV) name },	987	# define const_iv(name) { # name, (IV) name },
720	# define const_eio(name) { # name, (IV) EIO_ ## name },	988	# define const_eio(name) { # name, (IV) EIO_ ## name },
		989
		990	/* you have to re-run ./gendef0 after adding/removing any constants here */
		991	/* the first block can be undef if missing */
		992	const_iv (ENOSYS)
721	const_iv (EXDEV)	993	const_iv (EXDEV)
722	const_iv (ENOSYS)	994	const_iv (EBADR)
		995
		996	/* for lseek */
		997	const_iv (SEEK_DATA)
		998	const_iv (SEEK_HOLE)
		999
		1000	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1001	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1002	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1003	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1004	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1005	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1006
		1007	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1008	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1009	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1010	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1011	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1012
		1013	/* the second block will be 0 when missing */
723	const_iv (O_RDONLY)	1014	const_iv (O_RDONLY)
724	const_iv (O_WRONLY)	1015	const_iv (O_WRONLY)
725	const_iv (O_RDWR)	1016	const_iv (O_RDWR)
726	const_iv (O_CREAT)	1017	const_iv (O_CREAT)
727	const_iv (O_TRUNC)	1018	const_iv (O_TRUNC)
728	const_iv (O_EXCL)	1019	const_iv (O_EXCL)
729	const_iv (O_APPEND)	1020	const_iv (O_APPEND)
730	#ifndef _WIN32	1021
		1022	const_iv (O_ASYNC)
		1023	const_iv (O_DIRECT)
		1024	const_iv (O_NOATIME)
		1025
		1026	const_iv (O_CLOEXEC)
		1027	const_iv (O_NOCTTY)
		1028	const_iv (O_NOFOLLOW)
		1029	const_iv (O_NONBLOCK)
		1030	const_iv (O_EXEC)
		1031	const_iv (O_SEARCH)
		1032	const_iv (O_DIRECTORY)
		1033	const_iv (O_DSYNC)
		1034	const_iv (O_RSYNC)
		1035	const_iv (O_SYNC)
		1036	const_iv (O_PATH)
		1037	const_iv (O_TMPFILE)
		1038	const_iv (O_TTY_INIT)
		1039
731	const_iv (S_IFIFO)	1040	const_iv (S_IFIFO)
732	#endif	1041	const_iv (S_IFCHR)
733	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	1042	const_iv (S_IFBLK)
734	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	1043	const_iv (S_IFLNK)
735	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	1044	const_iv (S_IFREG)
736	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	1045	const_iv (S_IFDIR)
737	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	1046	const_iv (S_IFWHT)
738	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	1047	const_iv (S_IFSOCK)
739		1048	const_iv (S_IFMT)
740	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
741	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
742	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
743	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
744	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
745		1049
746	const_iv (ST_RDONLY)	1050	const_iv (ST_RDONLY)
747	const_iv (ST_NOSUID)	1051	const_iv (ST_NOSUID)
748	const_iv (ST_NODEV)	1052	const_iv (ST_NODEV)
749	const_iv (ST_NOEXEC)	1053	const_iv (ST_NOEXEC)
…		…
759	const_iv (PROT_NONE)	1063	const_iv (PROT_NONE)
760	const_iv (PROT_EXEC)	1064	const_iv (PROT_EXEC)
761	const_iv (PROT_READ)	1065	const_iv (PROT_READ)
762	const_iv (PROT_WRITE)	1066	const_iv (PROT_WRITE)
763		1067
764	/*const_iv (MAP_FIXED)*/
765	const_iv (MAP_PRIVATE)	1068	const_iv (MAP_PRIVATE)
766	const_iv (MAP_SHARED)	1069	const_iv (MAP_SHARED)
		1070	const_iv (MAP_FIXED)
767	const_iv (MAP_ANONYMOUS)	1071	const_iv (MAP_ANONYMOUS)
768		1072
769	/* linuxish */	1073	/* linuxish */
770	const_iv (MAP_HUGETLB)
771	const_iv (MAP_LOCKED)	1074	const_iv (MAP_LOCKED)
772	const_iv (MAP_NORESERVE)	1075	const_iv (MAP_NORESERVE)
773	const_iv (MAP_POPULATE)	1076	const_iv (MAP_POPULATE)
774	const_iv (MAP_NONBLOCK)	1077	const_iv (MAP_NONBLOCK)
		1078	const_iv (MAP_GROWSDOWN)
		1079	const_iv (MAP_32BIT)
		1080	const_iv (MAP_HUGETLB)
		1081	const_iv (MAP_STACK)
		1082
		1083	const_iv (F_DUPFD_CLOEXEC)
		1084
		1085	const_iv (F_OFD_GETLK)
		1086	const_iv (F_OFD_SETLK)
		1087	const_iv (F_OFD_GETLKW)
		1088
		1089	const_iv (FIFREEZE)
		1090	const_iv (FITHAW)
		1091	const_iv (FITRIM)
		1092	const_iv (FICLONE)
		1093	const_iv (FICLONERANGE)
		1094	const_iv (FIDEDUPERANGE)
		1095
		1096	const_iv (FS_IOC_GETFLAGS)
		1097	const_iv (FS_IOC_SETFLAGS)
		1098	const_iv (FS_IOC_GETVERSION)
		1099	const_iv (FS_IOC_SETVERSION)
		1100	const_iv (FS_IOC_FIEMAP)
		1101	const_iv (FS_IOC_FSGETXATTR)
		1102	const_iv (FS_IOC_FSSETXATTR)
		1103	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1104	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1105	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1106
		1107	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1108
		1109	const_iv (FS_SECRM_FL)
		1110	const_iv (FS_UNRM_FL)
		1111	const_iv (FS_COMPR_FL)
		1112	const_iv (FS_SYNC_FL)
		1113	const_iv (FS_IMMUTABLE_FL)
		1114	const_iv (FS_APPEND_FL)
		1115	const_iv (FS_NODUMP_FL)
		1116	const_iv (FS_NOATIME_FL)
		1117	const_iv (FS_DIRTY_FL)
		1118	const_iv (FS_COMPRBLK_FL)
		1119	const_iv (FS_NOCOMP_FL)
		1120	const_iv (FS_ENCRYPT_FL)
		1121	const_iv (FS_BTREE_FL)
		1122	const_iv (FS_INDEX_FL)
		1123	const_iv (FS_JOURNAL_DATA_FL)
		1124	const_iv (FS_NOTAIL_FL)
		1125	const_iv (FS_DIRSYNC_FL)
		1126	const_iv (FS_TOPDIR_FL)
		1127	const_iv (FS_FL_USER_MODIFIABLE)
		1128
		1129	const_iv (FS_XFLAG_REALTIME)
		1130	const_iv (FS_XFLAG_PREALLOC)
		1131	const_iv (FS_XFLAG_IMMUTABLE)
		1132	const_iv (FS_XFLAG_APPEND)
		1133	const_iv (FS_XFLAG_SYNC)
		1134	const_iv (FS_XFLAG_NOATIME)
		1135	const_iv (FS_XFLAG_NODUMP)
		1136	const_iv (FS_XFLAG_RTINHERIT)
		1137	const_iv (FS_XFLAG_PROJINHERIT)
		1138	const_iv (FS_XFLAG_NOSYMLINKS)
		1139	const_iv (FS_XFLAG_EXTSIZE)
		1140	const_iv (FS_XFLAG_EXTSZINHERIT)
		1141	const_iv (FS_XFLAG_NODEFRAG)
		1142	const_iv (FS_XFLAG_FILESTREAM)
		1143	const_iv (FS_XFLAG_DAX)
		1144	const_iv (FS_XFLAG_HASATTR)
		1145
		1146	const_iv (FIEMAP_FLAG_SYNC)
		1147	const_iv (FIEMAP_FLAG_XATTR)
		1148	const_iv (FIEMAP_FLAGS_COMPAT)
		1149	const_iv (FIEMAP_EXTENT_LAST)
		1150	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1151	const_iv (FIEMAP_EXTENT_DELALLOC)
		1152	const_iv (FIEMAP_EXTENT_ENCODED)
		1153	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1154	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1155	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1156	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1157	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1158	const_iv (FIEMAP_EXTENT_MERGED)
		1159	const_iv (FIEMAP_EXTENT_SHARED)
		1160
		1161	const_iv (SPLICE_F_MOVE)
		1162	const_iv (SPLICE_F_NONBLOCK)
		1163	const_iv (SPLICE_F_MORE)
		1164	const_iv (SPLICE_F_GIFT)
		1165
		1166	/* these are libeio constants, and are independent of gendef0 */
		1167	const_eio (SEEK_SET)
		1168	const_eio (SEEK_CUR)
		1169	const_eio (SEEK_END)
775		1170
776	const_eio (MCL_FUTURE)	1171	const_eio (MCL_FUTURE)
777	const_eio (MCL_CURRENT)	1172	const_eio (MCL_CURRENT)
778		1173
779	const_eio (MS_ASYNC)	1174	const_eio (MS_ASYNC)
…		…
783	const_eio (MT_MODIFY)	1178	const_eio (MT_MODIFY)
784		1179
785	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1180	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
786	const_eio (SYNC_FILE_RANGE_WRITE)	1181	const_eio (SYNC_FILE_RANGE_WRITE)
787	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1182	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1183
		1184	const_eio (FALLOC_FL_KEEP_SIZE)
		1185	const_eio (FALLOC_FL_PUNCH_HOLE)
		1186	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1187	const_eio (FALLOC_FL_ZERO_RANGE)
		1188	const_eio (FALLOC_FL_INSERT_RANGE)
		1189	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1190
		1191	const_eio (RENAME_NOREPLACE)
		1192	const_eio (RENAME_EXCHANGE)
		1193	const_eio (RENAME_WHITEOUT)
788		1194
789	const_eio (READDIR_DENTS)	1195	const_eio (READDIR_DENTS)
790	const_eio (READDIR_DIRS_FIRST)	1196	const_eio (READDIR_DIRS_FIRST)
791	const_eio (READDIR_STAT_ORDER)	1197	const_eio (READDIR_STAT_ORDER)
792	const_eio (READDIR_FOUND_UNKNOWN)	1198	const_eio (READDIR_FOUND_UNKNOWN)
…		…
803	};	1209	};
804		1210
805	aio_stash = gv_stashpv ("IO::AIO" , 1);	1211	aio_stash = gv_stashpv ("IO::AIO" , 1);
806	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1212	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
807	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1213	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1214	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
808		1215
809	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1216	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
810	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1217	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
811		1218
812	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1219	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
813		1220
814	create_respipe ();	1221	reinit ();
815
816	if (eio_init (want_poll, done_poll) < 0)
817	croak ("IO::AIO: unable to initialise eio library");
818
819	/* atfork child called in fifo order, so before eio's handler */
820	X_THREAD_ATFORK (0, 0, atfork_child);
821	}	1222	}
822		1223
823	void	1224	void
		1225	reinit ()
		1226	PROTOTYPE:
		1227
		1228	void
824	max_poll_reqs (int nreqs)	1229	max_poll_reqs (unsigned int nreqs)
825	PROTOTYPE: $	1230	PROTOTYPE: $
826	CODE:	1231	CODE:
827	eio_set_max_poll_reqs (nreqs);	1232	eio_set_max_poll_reqs (nreqs);
828		1233
829	void	1234	void
…		…
831	PROTOTYPE: $	1236	PROTOTYPE: $
832	CODE:	1237	CODE:
833	eio_set_max_poll_time (nseconds);	1238	eio_set_max_poll_time (nseconds);
834		1239
835	void	1240	void
836	min_parallel (int nthreads)	1241	min_parallel (unsigned int nthreads)
837	PROTOTYPE: $	1242	PROTOTYPE: $
838	CODE:	1243	CODE:
839	eio_set_min_parallel (nthreads);	1244	eio_set_min_parallel (nthreads);
840		1245
841	void	1246	void
842	max_parallel (int nthreads)	1247	max_parallel (unsigned int nthreads)
843	PROTOTYPE: $	1248	PROTOTYPE: $
844	CODE:	1249	CODE:
845	eio_set_max_parallel (nthreads);	1250	eio_set_max_parallel (nthreads);
846		1251
847	void	1252	void
848	max_idle (int nthreads)	1253	max_idle (unsigned int nthreads)
849	PROTOTYPE: $	1254	PROTOTYPE: $
850	CODE:	1255	CODE:
851	eio_set_max_idle (nthreads);	1256	eio_set_max_idle (nthreads);
852		1257
853	void	1258	void
		1259	idle_timeout (unsigned int seconds)
		1260	PROTOTYPE: $
		1261	CODE:
		1262	eio_set_idle_timeout (seconds);
		1263
		1264	void
854	max_outstanding (int maxreqs)	1265	max_outstanding (unsigned int maxreqs)
855	PROTOTYPE: $	1266	PROTOTYPE: $
856	CODE:	1267	CODE:
857	max_outstanding = maxreqs;	1268	max_outstanding = maxreqs;
858		1269
859	void	1270	void
860	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1271	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
861	PPCODE:	1272	PPCODE:
862	{	1273	{
863	dREQ;	1274	dREQ;
864		1275
		1276	req->type = EIO_WD_OPEN;
		1277	req_set_path1 (req, pathname);
		1278
		1279	REQ_SEND;
		1280	}
		1281
		1282	void
		1283	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1284	PPCODE:
		1285	{
		1286	dREQ;
		1287
865	req->type = EIO_OPEN;	1288	req->type = EIO_OPEN;
866	req->sv1 = newSVsv (pathname);	1289	req_set_path1 (req, pathname);
867	req->ptr1 = SvPVbyte_nolen (req->sv1);
868	req->int1 = flags;	1290	req->int1 = flags;
869	req->int2 = mode;	1291	req->int2 = mode;
870		1292
871	REQ_SEND;	1293	REQ_SEND;
872	}	1294	}
873		1295
874	void	1296	void
875	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1297	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
876	ALIAS:	1298	ALIAS:
877	aio_fsync = EIO_FSYNC	1299	aio_fsync = EIO_FSYNC
878	aio_fdatasync = EIO_FDATASYNC	1300	aio_fdatasync = EIO_FDATASYNC
		1301	aio_syncfs = EIO_SYNCFS
879	PPCODE:	1302	PPCODE:
880	{	1303	{
881	int fd = s_fileno_croak (fh, 0);	1304	int fd = s_fileno_croak (fh, 0);
882	dREQ;	1305	dREQ;
883		1306
884	req->type = ix;	1307	req->type = ix;
885	req->sv1 = newSVsv (fh);	1308	req->sv1 = newSVsv (fh);
886	req->int1 = fd;	1309	req->int1 = fd;
887		1310
888	REQ_SEND (req);	1311	REQ_SEND;
889	}	1312	}
890		1313
891	void	1314	void
892	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1315	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
893	PPCODE:	1316	PPCODE:
894	{	1317	{
895	int fd = s_fileno_croak (fh, 0);	1318	int fd = s_fileno_croak (fh, 0);
896	dREQ;	1319	dREQ;
897		1320
898	req->type = EIO_SYNC_FILE_RANGE;	1321	req->type = EIO_SYNC_FILE_RANGE;
899	req->sv1 = newSVsv (fh);	1322	req->sv1 = newSVsv (fh);
900	req->int1 = fd;	1323	req->int1 = fd;
901	req->offs = offset;	1324	req->offs = offset;
902	req->size = nbytes;	1325	req->size = nbytes;
903	req->int2 = flags;	1326	req->int2 = flags;
904		1327
905	REQ_SEND (req);	1328	REQ_SEND;
906	}	1329	}
907		1330
908	void	1331	void
909	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1332	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
910	PPCODE:	1333	PPCODE:
911	{	1334	{
912	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
913	int fd = s_fileno_croak (fh, 0);	1335	int fd = s_fileno_croak (fh, 0);
914	dREQ;	1336	dREQ;
915		1337
916	if (close_pipe < 0)	1338	req->type = EIO_FALLOCATE;
		1339	req->sv1 = newSVsv (fh);
		1340	req->int1 = fd;
		1341	req->int2 = mode;
		1342	req->offs = offset;
		1343	req->size = len;
		1344
		1345	REQ_SEND;
		1346	}
		1347
		1348	void
		1349	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1350	PPCODE:
		1351	{
		1352	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1353	int fd = s_fileno_croak (fh, 0);
		1354	dREQ;
		1355
		1356	if (expect_false (close_fd < 0))
917	{	1357	{
918	int pipefd [2];	1358	int pipefd [2];
919		1359
		1360	if (
		1361	#ifdef _WIN32
		1362	_pipe (pipefd, 1, _O_BINARY) < 0
		1363	#else
920	if (pipe (pipefd) < 0	1364	pipe (pipefd) < 0
921	|| close (pipefd [1]) < 0
922	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1365	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1366	#endif
		1367	|| close (pipefd [1]) < 0
		1368	)
923	abort (); /*D*/	1369	abort (); /*D*/
924		1370
925	close_pipe = pipefd [0];	1371	close_fd = pipefd [0];
926	}	1372	}
927		1373
928	req->type = EIO_DUP2;	1374	req->type = EIO_DUP2;
929	req->int1 = close_pipe;	1375	req->int1 = close_fd;
930	req->sv2 = newSVsv (fh);	1376	req->sv2 = newSVsv (fh);
931	req->int2 = fd;	1377	req->int2 = fd;
932		1378
933	REQ_SEND (req);	1379	REQ_SEND;
934	}	1380	}
935		1381
936	void	1382	void
		1383	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1384	PPCODE:
		1385	{
		1386	int fd = s_fileno_croak (fh, 0);
		1387	dREQ;
		1388
		1389	req->type = EIO_SEEK;
		1390	req->sv1 = newSVsv (fh);
		1391	req->int1 = fd;
		1392	req->offs = SvVAL64 (offset);
		1393	req->int2 = whence;
		1394
		1395	REQ_SEND;
		1396	}
		1397
		1398	void
937	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1399	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
938	ALIAS:	1400	ALIAS:
939	aio_read = EIO_READ	1401	aio_read = EIO_READ
940	aio_write = EIO_WRITE	1402	aio_write = EIO_WRITE
941	PPCODE:	1403	PPCODE:
942	{	1404	{
…		…
958	len = svlen - dataoffset;	1420	len = svlen - dataoffset;
959	}	1421	}
960	else	1422	else
961	{	1423	{
962	/* read: check type and grow scalar as necessary */	1424	/* read: check type and grow scalar as necessary */
963	SvUPGRADE (data, SVt_PV);	1425	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
964	svptr = SvGROW (data, len + dataoffset + 1);	1426	svptr = sv_grow (data, len + dataoffset + 1);
		1427	else if (SvCUR (data) < len + dataoffset)
		1428	croak ("length + dataoffset outside of scalar, and cannot grow");
965	}	1429	}
966		1430
967	{	1431	{
968	dREQ;	1432	dREQ;
969		1433
…		…
985	REQ_SEND;	1449	REQ_SEND;
986	}	1450	}
987	}	1451	}
988		1452
989	void	1453	void
990	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1454	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1455	ALIAS:
		1456	aio_ioctl = EIO_IOCTL
		1457	aio_fcntl = EIO_FCNTL
991	PPCODE:	1458	PPCODE:
992	{	1459	{
993	SV *data;	1460	int fd = s_fileno_croak (fh, 0);
		1461	char *svptr;
		1462
		1463	if (SvPOK (arg) || !SvNIOK (arg))
		1464	{
		1465	STRLEN svlen;
		1466	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1467	#ifdef IOCPARM_LEN
		1468	STRLEN need = IOCPARM_LEN (request);
		1469	#else
		1470	STRLEN need = 256;
		1471	#endif
		1472
		1473	if (svlen < need)
		1474	svptr = SvGROW (arg, need);
		1475	}
		1476	else
		1477	svptr = (char *)SvIV (arg);
		1478
		1479	{
		1480	dREQ;
		1481
		1482	req->type = ix;
		1483	req->sv1 = newSVsv (fh);
		1484	req->int1 = fd;
		1485	req->int2 = (long)request;
		1486	req->sv2 = SvREFCNT_inc (arg);
		1487	req->ptr2 = svptr;
		1488
		1489	REQ_SEND;
		1490	}
		1491	}
		1492
		1493	void
		1494	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1495	ALIAS:
		1496	aio_readlink = EIO_READLINK
		1497	aio_realpath = EIO_REALPATH
		1498	PPCODE:
		1499	{
994	dREQ;	1500	dREQ;
995		1501
996	req->type = EIO_READLINK;	1502	req->type = ix;
997	req->sv1 = newSVsv (path);	1503	req_set_path1 (req, pathname);
998	req->ptr1 = SvPVbyte_nolen (req->sv1);
999		1504
1000	REQ_SEND;	1505	REQ_SEND;
1001	}	1506	}
1002		1507
1003	void	1508	void
1004	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1509	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1005	PPCODE:	1510	PPCODE:
1006	{	1511	{
1007	int ifd = s_fileno_croak (in_fh , 0);	1512	int ifd = s_fileno_croak (in_fh , 0);
1008	int ofd = s_fileno_croak (out_fh, 1);	1513	int ofd = s_fileno_croak (out_fh, 1);
1009	dREQ;	1514	dREQ;
1010		1515
1011	req->type = EIO_SENDFILE;	1516	req->type = EIO_SENDFILE;
1012	req->sv1 = newSVsv (out_fh);	1517	req->sv1 = newSVsv (out_fh);
1013	req->int1 = ofd;	1518	req->int1 = ofd;
…		…
1018		1523
1019	REQ_SEND;	1524	REQ_SEND;
1020	}	1525	}
1021		1526
1022	void	1527	void
1023	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1528	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1024	PPCODE:	1529	PPCODE:
1025	{	1530	{
1026	int fd = s_fileno_croak (fh, 0);	1531	int fd = s_fileno_croak (fh, 0);
1027	dREQ;	1532	dREQ;
1028		1533
1029	req->type = EIO_READAHEAD;	1534	req->type = EIO_READAHEAD;
1030	req->sv1 = newSVsv (fh);	1535	req->sv1 = newSVsv (fh);
1031	req->int1 = fd;	1536	req->int1 = fd;
…		…
1034		1539
1035	REQ_SEND;	1540	REQ_SEND;
1036	}	1541	}
1037		1542
1038	void	1543	void
1039	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1544	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1040	ALIAS:	1545	ALIAS:
1041	aio_stat = EIO_STAT	1546	aio_stat = EIO_STAT
1042	aio_lstat = EIO_LSTAT	1547	aio_lstat = EIO_LSTAT
1043	aio_statvfs = EIO_STATVFS	1548	aio_statvfs = EIO_STATVFS
1044	PPCODE:	1549	PPCODE:
1045	{	1550	{
1046	dREQ;	1551	dREQ;
1047		1552
1048	req->sv1 = newSVsv (fh_or_path);	1553	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1049
1050	if (SvPOK (req->sv1))
1051	{
1052	req->type = ix;
1053	req->ptr1 = SvPVbyte_nolen (req->sv1);
1054	}
1055	else
1056	{
1057	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1058	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1059	}
1060		1554
1061	REQ_SEND;	1555	REQ_SEND;
1062	}	1556	}
1063		1557
		1558	UV
		1559	major (UV dev)
		1560	ALIAS:
		1561	minor = 1
		1562	CODE:
		1563	RETVAL = ix ? minor (dev) : major (dev);
		1564	OUTPUT:
		1565	RETVAL
		1566
		1567	UV
		1568	makedev (UV maj, UV min)
		1569	CODE:
		1570	RETVAL = makedev (maj, min);
		1571	OUTPUT:
		1572	RETVAL
		1573
1064	void	1574	void
1065	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1575	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1066	PPCODE:	1576	PPCODE:
1067	{	1577	{
1068	dREQ;	1578	dREQ;
1069		1579
1070	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1580	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1071	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1581	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1072	req->sv1 = newSVsv (fh_or_path);	1582	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1073
1074	if (SvPOK (req->sv1))
1075	{
1076	req->type = EIO_UTIME;
1077	req->ptr1 = SvPVbyte_nolen (req->sv1);
1078	}
1079	else
1080	{
1081	req->type = EIO_FUTIME;
1082	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1083	}
1084		1583
1085	REQ_SEND;	1584	REQ_SEND;
1086	}	1585	}
1087		1586
1088	void	1587	void
1089	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1588	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1090	PPCODE:	1589	PPCODE:
1091	{	1590	{
1092	dREQ;	1591	dREQ;
1093		1592
1094	req->sv1 = newSVsv (fh_or_path);
1095	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1593	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1096		1594	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1097	if (SvPOK (req->sv1))
1098	{
1099	req->type = EIO_TRUNCATE;
1100	req->ptr1 = SvPVbyte_nolen (req->sv1);
1101	}
1102	else
1103	{
1104	req->type = EIO_FTRUNCATE;
1105	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1106	}
1107		1595
1108	REQ_SEND;	1596	REQ_SEND;
1109	}	1597	}
1110		1598
1111	void	1599	void
1112	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1600	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1113	ALIAS:
1114	aio_chmod = EIO_CHMOD
1115	aio_mkdir = EIO_MKDIR
1116	PPCODE:	1601	PPCODE:
1117	{	1602	{
1118	dREQ;	1603	dREQ;
1119		1604
1120	req->int2 = mode;	1605	req->int2 = mode;
1121	req->sv1 = newSVsv (fh_or_path);	1606	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1122
1123	if (SvPOK (req->sv1))
1124	{
1125	req->type = ix;
1126	req->ptr1 = SvPVbyte_nolen (req->sv1);
1127	}
1128	else
1129	{
1130	req->type = EIO_FCHMOD;
1131	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1132	}
1133		1607
1134	REQ_SEND;	1608	REQ_SEND;
1135	}	1609	}
1136		1610
1137	void	1611	void
1138	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1612	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1139	PPCODE:	1613	PPCODE:
1140	{	1614	{
1141	dREQ;	1615	dREQ;
1142		1616
1143	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1617	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1144	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1618	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1145	req->sv1 = newSVsv (fh_or_path);	1619	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1146
1147	if (SvPOK (req->sv1))
1148	{
1149	req->type = EIO_CHOWN;
1150	req->ptr1 = SvPVbyte_nolen (req->sv1);
1151	}
1152	else
1153	{
1154	req->type = EIO_FCHOWN;
1155	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1156	}
1157		1620
1158	REQ_SEND;	1621	REQ_SEND;
1159	}	1622	}
1160		1623
1161	void	1624	void
1162	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1625	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1163	PPCODE:	1626	PPCODE:
1164	{	1627	{
1165	dREQ;	1628	dREQ;
1166		1629
1167	req->type = EIO_READDIR;	1630	req->type = EIO_READDIR;
1168	req->sv1 = newSVsv (pathname);
1169	req->ptr1 = SvPVbyte_nolen (req->sv1);
1170	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1631	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1171		1632
1172	if (flags & EIO_READDIR_DENTS)	1633	if (flags & EIO_READDIR_DENTS)
1173	req->int1 |= EIO_READDIR_CUSTOM2;	1634	req->int1 |= EIO_READDIR_CUSTOM2;
1174		1635
		1636	req_set_path1 (req, pathname);
		1637
1175	REQ_SEND;	1638	REQ_SEND;
1176	}	1639	}
1177		1640
1178	void	1641	void
		1642	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1643	PPCODE:
		1644	{
		1645	dREQ;
		1646
		1647	req->type = EIO_MKDIR;
		1648	req->int2 = mode;
		1649	req_set_path1 (req, pathname);
		1650
		1651	REQ_SEND;
		1652	}
		1653
		1654	void
1179	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1655	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1180	ALIAS:	1656	ALIAS:
1181	aio_unlink = EIO_UNLINK	1657	aio_unlink = EIO_UNLINK
1182	aio_rmdir = EIO_RMDIR	1658	aio_rmdir = EIO_RMDIR
1183	aio_readdir = EIO_READDIR	1659	aio_readdir = EIO_READDIR
1184	PPCODE:	1660	PPCODE:
1185	{	1661	{
1186	dREQ;	1662	dREQ;
1187		1663
1188	req->type = ix;	1664	req->type = ix;
1189	req->sv1 = newSVsv (pathname);	1665	req_set_path1 (req, pathname);
1190	req->ptr1 = SvPVbyte_nolen (req->sv1);
1191		1666
1192	REQ_SEND;	1667	REQ_SEND;
1193	}	1668	}
1194		1669
1195	void	1670	void
1196	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1671	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1197	ALIAS:	1672	ALIAS:
1198	aio_link = EIO_LINK	1673	aio_link = EIO_LINK
1199	aio_symlink = EIO_SYMLINK	1674	aio_symlink = EIO_SYMLINK
1200	aio_rename = EIO_RENAME	1675	aio_rename = EIO_RENAME
1201	PPCODE:	1676	PPCODE:
1202	{	1677	{
		1678	eio_wd wd2 = 0;
1203	dREQ;	1679	dREQ;
1204		1680
1205	req->type = ix;	1681	req->type = ix;
1206	req->sv1 = newSVsv (oldpath);	1682	req_set_path1 (req, oldpath);
1207	req->ptr1 = SvPVbyte_nolen (req->sv1);	1683	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1208	req->sv2 = newSVsv (newpath);	1684	req->int3 = (long)wd2;
1209	req->ptr2 = SvPVbyte_nolen (req->sv2);
1210		1685
1211	REQ_SEND;	1686	REQ_SEND;
1212	}	1687	}
1213		1688
1214	void	1689	void
		1690	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1691	PPCODE:
		1692	{
		1693	eio_wd wd2 = 0;
		1694	dREQ;
		1695
		1696	req->type = EIO_RENAME;
		1697	req_set_path1 (req, oldpath);
		1698	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1699	req->int2 = flags;
		1700	req->int3 = (long)wd2;
		1701
		1702	REQ_SEND;
		1703	}
		1704
		1705	void
1215	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1706	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1216	PPCODE:	1707	PPCODE:
1217	{	1708	{
1218	dREQ;	1709	dREQ;
1219		1710
1220	req->type = EIO_MKNOD;	1711	req->type = EIO_MKNOD;
1221	req->sv1 = newSVsv (pathname);
1222	req->ptr1 = SvPVbyte_nolen (req->sv1);
1223	req->int2 = (mode_t)mode;	1712	req->int2 = (mode_t)mode;
1224	req->offs = dev;	1713	req->offs = dev;
		1714	req_set_path1 (req, pathname);
1225		1715
1226	REQ_SEND;	1716	REQ_SEND;
1227	}	1717	}
1228		1718
1229	void	1719	void
1230	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1720	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1231	ALIAS:	1721	ALIAS:
1232	aio_mtouch = EIO_MTOUCH	1722	aio_mtouch = EIO_MTOUCH
1233	aio_msync = EIO_MSYNC	1723	aio_msync = EIO_MSYNC
1234	PPCODE:	1724	PPCODE:
1235	{	1725	{
1236	STRLEN svlen;	1726	STRLEN svlen;
1237	char *svptr = SvPVbyte (data, svlen);	1727	char *svptr = SvPVbyte (data, svlen);
1238	UV len = SvUV (length);	1728	UV len = SvUV (length);
		1729
		1730	if (flags < 0)
		1731	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1239		1732
1240	if (offset < 0)	1733	if (offset < 0)
1241	offset += svlen;	1734	offset += svlen;
1242		1735
1243	if (offset < 0 || offset > svlen)	1736	if (offset < 0 || offset > svlen)
…		…
1258	REQ_SEND;	1751	REQ_SEND;
1259	}	1752	}
1260	}	1753	}
1261		1754
1262	void	1755	void
1263	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1756	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1264	PPCODE:	1757	PPCODE:
1265	{	1758	{
1266	STRLEN svlen;	1759	STRLEN svlen;
1267	char *svptr = SvPVbyte (data, svlen);	1760	char *svptr = SvPVbyte (data, svlen);
1268	UV len = SvUV (length);	1761	UV len = SvUV (length);
…		…
1287	REQ_SEND;	1780	REQ_SEND;
1288	}	1781	}
1289	}	1782	}
1290		1783
1291	void	1784	void
1292	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1785	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1293	PPCODE:	1786	PPCODE:
1294	{	1787	{
1295	dREQ;	1788	dREQ;
1296		1789
1297	req->type = EIO_MLOCKALL;	1790	req->type = EIO_MLOCKALL;
…		…
1299		1792
1300	REQ_SEND;	1793	REQ_SEND;
1301	}	1794	}
1302		1795
1303	void	1796	void
		1797	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1798	PPCODE:
		1799	{
		1800	int fd = s_fileno_croak (fh, 0);
		1801	dREQ;
		1802
		1803	req->type = EIO_CUSTOM;
		1804	req->sv1 = newSVsv (fh);
		1805	req->int1 = fd;
		1806
		1807	req->feed = fiemap;
		1808	#if HAVE_FIEMAP
		1809	/* keep our fingers crossed that the next two types are 64 bit */
		1810	req->offs = start;
		1811	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1812	req->int2 = flags;
		1813	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1814	#endif
		1815
		1816	REQ_SEND;
		1817	}
		1818
		1819	void
		1820	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1821	PPCODE:
		1822	{
		1823	char *svptr = 0;
		1824
		1825	sv_clear_foreign (data);
		1826
		1827	if (length) /* known length, directly read into scalar */
		1828	{
		1829	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1830	svptr = sv_grow (data, length + 1);
		1831	else if (SvCUR (data) < length)
		1832	croak ("length outside of scalar, and cannot grow");
		1833	else
		1834	svptr = SvPVbyte_nolen (data);
		1835	}
		1836
		1837	{
		1838	dREQ;
		1839
		1840	req->type = EIO_SLURP;
		1841	req_set_path1 (req, pathname);
		1842	req->offs = offset;
		1843	req->size = length;
		1844	req->sv2 = SvREFCNT_inc (data);
		1845	req->ptr2 = svptr;
		1846
		1847	if (!SvREADONLY (data))
		1848	{
		1849	SvREADONLY_on (data);
		1850	req->flags |= FLAG_SV2_RO_OFF;
		1851	}
		1852
		1853	REQ_SEND;
		1854	}
		1855	}
		1856
		1857	void
1304	aio_busy (double delay, SV *callback=&PL_sv_undef)	1858	aio_busy (double delay, SV *callback = &PL_sv_undef)
1305	PPCODE:	1859	PPCODE:
1306	{	1860	{
1307	dREQ;	1861	dREQ;
1308		1862
1309	req->type = EIO_BUSY;	1863	req->type = EIO_BUSY;
…		…
1311		1865
1312	REQ_SEND;	1866	REQ_SEND;
1313	}	1867	}
1314		1868
1315	void	1869	void
1316	aio_group (SV *callback=&PL_sv_undef)	1870	aio_group (SV *callback = &PL_sv_undef)
1317	PPCODE:	1871	PPCODE:
1318	{	1872	{
1319	dREQ;	1873	dREQ;
1320		1874
1321	req->type = EIO_GROUP;	1875	req->type = EIO_GROUP;
1322		1876
		1877	PUTBACK;
1323	req_submit (req);	1878	req_submit (req);
		1879	SPAGAIN;
		1880
1324	XPUSHs (req_sv (req, aio_grp_stash));	1881	XPUSHs (req_sv (req, aio_grp_stash));
1325	}	1882	}
1326		1883
1327	void	1884	void
1328	aio_nop (SV *callback=&PL_sv_undef)	1885	aio_nop (SV *callback = &PL_sv_undef)
1329	ALIAS:	1886	ALIAS:
1330	aio_nop = EIO_NOP	1887	aio_nop = EIO_NOP
1331	aio_sync = EIO_SYNC	1888	aio_sync = EIO_SYNC
1332	PPCODE:	1889	PPCODE:
1333	{	1890	{
…		…
1337		1894
1338	REQ_SEND;	1895	REQ_SEND;
1339	}	1896	}
1340		1897
1341	int	1898	int
1342	aioreq_pri (int pri = 0)	1899	aioreq_pri (int pri = NO_INIT)
1343	CODE:	1900	CODE:
1344	RETVAL = next_pri;	1901	RETVAL = next_pri;
1345	if (items > 0)	1902	if (items > 0)
1346	{	1903	{
1347	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1904	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1429	CODE:	1986	CODE:
1430	RETVAL = posix_fadvise (fh, offset, length, advice);	1987	RETVAL = posix_fadvise (fh, offset, length, advice);
1431	OUTPUT:	1988	OUTPUT:
1432	RETVAL	1989	RETVAL
1433		1990
1434	ssize_t	1991	IV
1435	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1992	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1436	CODE:	1993	CODE:
1437	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1994	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1438	OUTPUT:	1995	OUTPUT:
1439	RETVAL	1996	RETVAL
1440		1997
1441	void	1998	void
1442	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1999	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1443	PPCODE:	2000	PPCODE:
1444	sv_unmagic (scalar, MMAP_MAGIC);	2001	sv_clear_foreign (scalar);
1445	{	2002	{
1446	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2003	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1447	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2004	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1448	if (addr == (void *)-1)	2005	if (addr == (void *)-1)
1449	XSRETURN_NO;	2006	XSRETURN_NO;
1450		2007
1451	sv_force_normal (scalar);	2008	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1452
1453	/* we store the length in mg_obj, as namlen is I32 :/ */
1454	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1455	->mg_obj = (SV *)length;
1456
1457	SvUPGRADE (scalar, SVt_PV); /* nop... */
1458		2009
1459	if (!(prot & PROT_WRITE))	2010	if (!(prot & PROT_WRITE))
1460	SvREADONLY_on (scalar);	2011	SvREADONLY_on (scalar);
1461		2012
1462	if (SvLEN (scalar))
1463	Safefree (SvPVX (scalar));
1464
1465	SvPVX (scalar) = (char *)addr;
1466	SvCUR_set (scalar, length);
1467	SvLEN_set (scalar, 0);
1468	SvPOK_only (scalar);
1469
1470	XSRETURN_YES;	2013	XSRETURN_YES;
1471	}	2014	}
1472		2015
1473	void	2016	void
1474	munmap (SV *scalar)	2017	munmap (SV *scalar)
1475	CODE:	2018	CODE:
1476	sv_unmagic (scalar, MMAP_MAGIC);	2019	sv_clear_foreign (scalar);
1477		2020
1478	int	2021	int
1479	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2022	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1480	ALIAS:	2023	ALIAS:
1481	mprotect = 1	2024	mprotect = 1
1482	CODE:	2025	CODE:
1483	{	2026	{
1484	STRLEN svlen;	2027	STRLEN svlen;
1485	void *addr = SvPVbyte (scalar, svlen);	2028	void *addr = SvPVbyte (scalar, svlen);
1486	size_t len = SvUV (length);	2029	STRLEN len = SvUV (length);
1487		2030
1488	if (offset < 0)	2031	if (offset < 0)
1489	offset += svlen;	2032	offset += svlen;
1490		2033
1491	if (offset < 0 || offset > svlen)	2034	if (offset < 0 || offset > svlen)
…		…
1505	}	2048	}
1506	OUTPUT:	2049	OUTPUT:
1507	RETVAL	2050	RETVAL
1508		2051
1509	int	2052	int
1510	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2053	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1511	CODE:	2054	CODE:
1512	{	2055	{
1513	STRLEN svlen;	2056	STRLEN svlen;
1514	void *addr = SvPVbyte (scalar, svlen);	2057	void *addr = SvPVbyte (scalar, svlen);
1515	size_t len = SvUV (length);	2058	size_t len = SvUV (length);
1516		2059
1517	if (offset < 0)	2060	if (offset < 0)
1518	offset += svlen;	2061	offset += svlen;
1519		2062
…		…
1523	if (!SvOK (length) || len + offset > svlen)	2066	if (!SvOK (length) || len + offset > svlen)
1524	len = svlen - offset;	2067	len = svlen - offset;
1525		2068
1526	addr = (void *)(((intptr_t)addr) + offset);	2069	addr = (void *)(((intptr_t)addr) + offset);
1527	eio_page_align (&addr, &len);	2070	eio_page_align (&addr, &len);
1528	#if _POSIX_MEMLOCK	2071	#if _POSIX_MEMLOCK_RANGE
1529	RETVAL = munlock (addr, len);	2072	RETVAL = munlock (addr, len);
1530	#else	2073	#else
1531	RETVAL = ((errno = ENOSYS), -1);	2074	RETVAL = EIO_ENOSYS ();
1532	#endif	2075	#endif
1533	}	2076	}
1534	OUTPUT:	2077	OUTPUT:
1535	RETVAL	2078	RETVAL
1536		2079
…		…
1538	munlockall ()	2081	munlockall ()
1539	CODE:	2082	CODE:
1540	#if _POSIX_MEMLOCK	2083	#if _POSIX_MEMLOCK
1541	munlockall ();	2084	munlockall ();
1542	#else	2085	#else
1543	RETVAL = -1;	2086	RETVAL = EIO_ENOSYS ();
1544	errno = ENOSYS;
1545	#endif	2087	#endif
1546	OUTPUT:	2088	OUTPUT:
1547	RETVAL	2089	RETVAL
		2090
		2091	int
		2092	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2093	CODE:
		2094	{
		2095	#if HAVE_LINUX_SPLICE
		2096	loff_t off_in_, off_out_;
		2097	RETVAL = splice (
		2098	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2099	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2100	length, flags
		2101	);
		2102	#else
		2103	RETVAL = EIO_ENOSYS ();
		2104	#endif
		2105	}
		2106	OUTPUT:
		2107	RETVAL
		2108
		2109	int
		2110	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2111	CODE:
		2112	#if HAVE_LINUX_SPLICE
		2113	RETVAL = tee (rfh, wfh, length, flags);
		2114	#else
		2115	RETVAL = EIO_ENOSYS ();
		2116	#endif
		2117	OUTPUT:
		2118	RETVAL
		2119
		2120	int
		2121	pipesize (aio_rfd rfh, int new_size = -1)
		2122	PROTOTYPE: $;$
		2123	CODE:
		2124	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2125	if (new_size >= 0)
		2126	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2127	else
		2128	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2129	#else
		2130	errno = ENOSYS;
		2131	RETVAL = -1;
		2132	#endif
		2133	OUTPUT:
		2134	RETVAL
		2135
		2136	void
		2137	pipe2 (int flags = 0)
		2138	PROTOTYPE: ;$
		2139	PPCODE:
		2140	{
		2141	int fd[2];
		2142	int res;
		2143
		2144	if (flags)
		2145	#if HAVE_PIPE2
		2146	res = pipe2 (fd, flags);
		2147	#else
		2148	res = (errno = ENOSYS, -1);
		2149	#endif
		2150	else
		2151	res = pipe (fd);
		2152
		2153	if (!res)
		2154	{
		2155	EXTEND (SP, 2);
		2156	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2157	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2158	}
		2159	}
		2160
		2161	UV
		2162	get_fdlimit ()
		2163	CODE:
		2164	#if HAVE_RLIMITS
		2165	struct rlimit rl;
		2166	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2167	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2168	#endif
		2169	XSRETURN_UNDEF;
		2170	OUTPUT:
		2171	RETVAL
		2172
		2173	void
		2174	min_fdlimit (UV limit = 0x7fffffffU)
		2175	CODE:
		2176	{
		2177	#if HAVE_RLIMITS
		2178	struct rlimit rl;
		2179	rlim_t orig_rlim_max;
		2180	UV bit;
		2181
		2182	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2183	goto fail;
		2184
		2185	if (rl.rlim_cur == RLIM_INFINITY)
		2186	XSRETURN_YES;
		2187
		2188	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2189
		2190	if (rl.rlim_cur < limit)
		2191	{
		2192	rl.rlim_cur = limit;
		2193
		2194	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2195	rl.rlim_max = rl.rlim_cur;
		2196	}
		2197
		2198	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2199	XSRETURN_YES;
		2200
		2201	if (errno == EPERM)
		2202	{
		2203	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2204	/* our limit overflows a system-wide limit */
		2205	/* try an adaptive algorithm, but do not lower the hardlimit */
		2206	rl.rlim_max = 0;
		2207	for (bit = 0x40000000U; bit; bit >>= 1)
		2208	{
		2209	rl.rlim_max |= bit;
		2210	rl.rlim_cur = rl.rlim_max;
		2211
		2212	/* nevr decrease the hard limit */
		2213	if (rl.rlim_max < orig_rlim_max)
		2214	break;
		2215
		2216	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2217	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2218	}
		2219
		2220	/* now, raise the soft limit to the max permitted */
		2221	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2222	{
		2223	rl.rlim_cur = rl.rlim_max;
		2224	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2225	errno = EPERM;
		2226	}
		2227	}
		2228	#endif
		2229	fail:
		2230	XSRETURN_UNDEF;
		2231	}
1548		2232
1549	void _on_next_submit (SV *cb)	2233	void _on_next_submit (SV *cb)
1550	CODE:	2234	CODE:
1551	SvREFCNT_dec (on_next_submit);	2235	SvREFCNT_dec (on_next_submit);
1552	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2236	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1553		2237
1554	PROTOTYPES: DISABLE	2238	PROTOTYPES: DISABLE
1555		2239
		2240	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2241
		2242	BOOT:
		2243	{
		2244	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2245	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2246	}
		2247
		2248	void
		2249	DESTROY (SV *self)
		2250	CODE:
		2251	{
		2252	aio_wd wd = SvAIO_WD (self);
		2253	#if HAVE_AT
		2254	{
		2255	SV *callback = &PL_sv_undef;
		2256	dREQ; /* clobbers next_pri :/ */
		2257	next_pri = req->pri; /* restore next_pri */
		2258	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2259	req->type = EIO_WD_CLOSE;
		2260	req->wd = wd;
		2261	REQ_SEND;
		2262	}
		2263	#else
		2264	eio_wd_close_sync (wd);
		2265	#endif
		2266	}
		2267
1556	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2268	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1557		2269
1558	void	2270	void
1559	cancel (aio_req_ornot req)	2271	cancel (aio_req_ornot req)
1560	CODE:	2272	CODE:
1561	eio_cancel (req);	2273	eio_cancel (req);
1562		2274
1563	void	2275	void
1564	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2276	cb (aio_req_ornot req, SV *callback = NO_INIT)
1565	PPCODE:	2277	PPCODE:
1566	{	2278	{
1567	if (GIMME_V != G_VOID)	2279	if (GIMME_V != G_VOID)
1568	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2280	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1569		2281
1570	if (items > 1)	2282	if (items > 1)
1571	{	2283	{
1572	SV *cb_cv =get_cb (callback);	2284	SV *cb_cv = get_cb (callback);
1573		2285
1574	SvREFCNT_dec (req->callback);	2286	SvREFCNT_dec (req->callback);
1575	req->callback = SvREFCNT_inc (cb_cv);	2287	req->callback = SvREFCNT_inc (cb_cv);
1576	}	2288	}
1577	}	2289	}
…		…
1634	limit (aio_req grp, int limit)	2346	limit (aio_req grp, int limit)
1635	CODE:	2347	CODE:
1636	eio_grp_limit (grp, limit);	2348	eio_grp_limit (grp, limit);
1637		2349
1638	void	2350	void
1639	feed (aio_req grp, SV *callback=&PL_sv_undef)	2351	feed (aio_req grp, SV *callback = &PL_sv_undef)
1640	CODE:	2352	CODE:
1641	{	2353	{
1642	SvREFCNT_dec (grp->sv2);	2354	SvREFCNT_dec (grp->sv2);
1643	grp->sv2 = newSVsv (callback);	2355	grp->sv2 = newSVsv (callback);
1644	grp->feed = aio_grp_feed;	2356	grp->feed = aio_grp_feed;

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