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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 1.251 by root, Sat Jan 6 01:04:42 2018 UTC

…		…
11	#include <stddef.h>	11	#include <stddef.h>
12	#include <stdlib.h>	12	#include <stdlib.h>
13	#include <errno.h>	13	#include <errno.h>
14	#include <sys/types.h>	14	#include <sys/types.h>
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <sys/statvfs.h>
17	#include <limits.h>	16	#include <limits.h>
18	#include <fcntl.h>	17	#include <fcntl.h>
19	#include <sched.h>	18	#include <sched.h>
20		19
21	#if _POSIX_MEMLOCK || _POSIX_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/eio.h"	131	#include "libeio/eio.h"
124		132
125	#ifndef POSIX_FADV_NORMAL	133	static int req_invoke (eio_req *req);
126	# define POSIX_FADV_NORMAL 0	134	#define EIO_FINISH(req) req_invoke (req)
127	#endif	135	static void req_destroy (eio_req *grp);
128	#ifndef POSIX_FADV_SEQUENTIAL	136	#define EIO_DESTROY(req) req_destroy (req)
129	# define POSIX_FADV_SEQUENTIAL 0	137
130	#endif	138	#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		139
144	#if !HAVE_POSIX_FADVISE	140	#if !HAVE_POSIX_FADVISE
145	# 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 */
146	#endif	142	#endif
147		143
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	144	#if !HAVE_POSIX_MADVISE
165	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	145	# 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	146	#endif
211		147
212	#ifndef MAP_ANONYMOUS	148	#ifndef MAP_ANONYMOUS
213	# ifdef MAP_ANON	149	# ifdef MAP_ANON
214	# define MAP_ANONYMOUS MAP_ANON	150	# define MAP_ANONYMOUS MAP_ANON
215	# else	151	# else
216	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	152	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
217	# endif	153	# endif
218	#endif	154	#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		155
235	#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
236	# define PAGESIZE sysconf (_SC_PAGESIZE)	171	# define PAGESIZE sysconf (_SC_PAGESIZE)
237	#endif	172	#endif
238		173
239	static int req_invoke (eio_req *req);	174	/*****************************************************************************/
240	#define EIO_FINISH(req) req_invoke (req)	175
241	static void req_destroy (eio_req *grp);	176	#if !_POSIX_MAPPED_FILES
242	#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	/*****************************************************************************/
243		364
244	enum {	365	enum {
245	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	366	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
246	};	367	};
247		368
248	#include "libeio/eio.c"
249
250	typedef eio_req *aio_req;	369	typedef eio_req *aio_req;
251	typedef eio_req *aio_req_ornot;	370	typedef eio_req *aio_req_ornot;
		371	typedef eio_wd aio_wd;
252		372
253	static SV *on_next_submit;	373	static SV *on_next_submit;
254	static int next_pri = EIO_PRI_DEFAULT;	374	static int next_pri = EIO_PRI_DEFAULT;
255	static int max_outstanding;	375	static int max_outstanding;
256		376
257	static s_epipe respipe;	377	static s_epipe respipe;
258		378
259	static void req_destroy (aio_req req);	379	static void req_destroy (aio_req req);
260	static void req_cancel (aio_req req);	380	static void req_cancel (aio_req req);
261		381
262	static void want_poll (void)	382	static void
		383	want_poll (void)
263	{	384	{
264	/* write a dummy byte to the pipe so fh becomes ready */	385	/* write a dummy byte to the pipe so fh becomes ready */
265	s_epipe_signal (&respipe);	386	s_epipe_signal (&respipe);
266	}	387	}
267		388
268	static void done_poll (void)	389	static void
		390	done_poll (void)
269	{	391	{
270	/* read any signals sent by the worker threads */	392	/* read any signals sent by the worker threads */
271	s_epipe_drain (&respipe);	393	s_epipe_drain (&respipe);
272	}	394	}
273		395
274	/* must be called at most once */	396	/* must be called at most once */
		397	static SV *
275	static SV *req_sv (aio_req req, HV *stash)	398	req_sv (aio_req req, HV *stash)
276	{	399	{
277	if (!req->self)	400	if (!req->self)
278	{	401	{
279	req->self = (SV *)newHV ();	402	req->self = (SV *)newHV ();
280	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	403	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
281	}	404	}
282		405
283	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	406	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
284	}	407	}
285		408
286	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)
287	{	417	{
288	MAGIC *mg;	418	MAGIC *mg;
289		419
290	if (!SvROK (sv)	420	if (!SvROK (sv)
		421	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
291	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	422	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
292	&& SvSTASH (SvRV (sv)) != aio_req_stash	423	&& SvSTASH (SvRV (sv)) != aio_req_stash
293	&& !sv_derived_from (sv, "IO::AIO::REQ")))	424	&& !sv_derived_from (sv, "IO::AIO::REQ")))
294	croak ("object of class IO::AIO::REQ expected");	425	croak ("object of class IO::AIO::REQ expected");
295		426
296	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	427	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
297		428
298	return mg ? (aio_req)mg->mg_ptr : 0;	429	return mg ? (aio_req)mg->mg_ptr : 0;
299	}	430	}
300		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
301	static void aio_grp_feed (aio_req grp)	469	aio_grp_feed (aio_req grp)
302	{	470	{
303	if (grp->sv2 && SvOK (grp->sv2))	471	if (grp->sv2 && SvOK (grp->sv2))
304	{	472	{
305	dSP;	473	dSP;
306		474
…		…
314	FREETMPS;	482	FREETMPS;
315	LEAVE;	483	LEAVE;
316	}	484	}
317	}	485	}
318		486
		487	static void
319	static void req_submit (eio_req *req)	488	req_submit (eio_req *req)
320	{	489	{
321	eio_submit (req);	490	eio_submit (req);
322		491
323	if (expect_false (on_next_submit))	492	if (expect_false (on_next_submit))
324	{	493	{
…		…
331	PUTBACK;	500	PUTBACK;
332	call_sv (cb, G_DISCARD | G_EVAL);	501	call_sv (cb, G_DISCARD | G_EVAL);
333	}	502	}
334	}	503	}
335		504
		505	static int
336	static int req_invoke (eio_req *req)	506	req_invoke (eio_req *req)
337	{	507	{
338	if (req->flags & FLAG_SV2_RO_OFF)	508	if (req->flags & FLAG_SV2_RO_OFF)
339	SvREADONLY_off (req->sv2);	509	SvREADONLY_off (req->sv2);
340		510
341	if (!EIO_CANCELLED (req) && req->callback)	511	if (!EIO_CANCELLED (req) && req->callback)
…		…
352	/* do not recreate the result IV from scratch each time */	522	/* do not recreate the result IV from scratch each time */
353	if (expect_true (sv_result_cache))	523	if (expect_true (sv_result_cache))
354	{	524	{
355	sv_result = sv_result_cache; sv_result_cache = 0;	525	sv_result = sv_result_cache; sv_result_cache = 0;
356	SvIV_set (sv_result, req->result);	526	SvIV_set (sv_result, req->result);
		527	SvIOK_only (sv_result);
357	}	528	}
358	else	529	else
359	{	530	{
360	sv_result = newSViv (req->result);	531	sv_result = newSViv (req->result);
361	SvREADONLY_on (sv_result);	532	SvREADONLY_on (sv_result);
362	}	533	}
363		534
364	switch (req->type)	535	switch (req->type)
365	{	536	{
		537	case EIO_WD_OPEN:
		538	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		539	break;
		540
366	case EIO_READDIR:	541	case EIO_READDIR:
367	{	542	{
368	SV *rv = &PL_sv_undef;	543	SV *rv = &PL_sv_undef;
369		544
370	if (req->result >= 0)	545	if (req->result >= 0)
…		…
423	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))));
424	}	599	}
425	break;	600	break;
426		601
427	case EIO_OPEN:	602	case EIO_OPEN:
428	{	603	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;	604	break;
457		605
458	case EIO_STATVFS:	606	case EIO_STATVFS:
459	case EIO_FSTATVFS:	607	case EIO_FSTATVFS:
460	{	608	{
461	SV *rv = &PL_sv_undef;	609	SV *rv = &PL_sv_undef;
462		610
		611	#ifndef _WIN32
463	if (req->result >= 0)	612	if (req->result >= 0)
464	{	613	{
465	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	614	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
466	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));
467		621
468	rv = sv_2mortal (newRV_noinc ((SV *)hv));	622	rv = sv_2mortal (newRV_noinc ((SV *)hv));
469		623
470	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);
471	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);
…		…
473	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);
474	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);
475	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);
476	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);
477	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);
478	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	632	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
479	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);
480	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);
481	}	635	}
		636	#endif
482		637
483	PUSHs (rv);	638	PUSHs (rv);
484	}	639	}
485		640
486	break;	641	break;
…		…
502	case EIO_NOP:	657	case EIO_NOP:
503	case EIO_BUSY:	658	case EIO_BUSY:
504	break;	659	break;
505		660
506	case EIO_READLINK:	661	case EIO_READLINK:
		662	case EIO_REALPATH:
507	if (req->result > 0)	663	if (req->result > 0)
508	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	664	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
509	break;	665	break;
510		666
511	case EIO_STAT:	667	case EIO_STAT:
512	case EIO_LSTAT:	668	case EIO_LSTAT:
513	case EIO_FSTAT:	669	case EIO_FSTAT:
514	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	670	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		671
515	PL_laststatval = req->result;	672	if (!(PL_laststatval = req->result))
		673	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
516	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	674	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		675
517	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)));
518	break;	681	break;
519		682
520	case EIO_READ:	683	case EIO_READ:
521	{	684	{
522	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));
…		…
525	SvSETMAGIC (req->sv2);	688	SvSETMAGIC (req->sv2);
526	PUSHs (sv_result);	689	PUSHs (sv_result);
527	}	690	}
528	break;	691	break;
529		692
		693	case EIO_SLURP:
		694	{
		695	if (req->result >= 0)
		696	{
		697	/* if length was originally not known, we steal the malloc'ed memory */
		698	if (req->flags & EIO_FLAG_PTR2_FREE)
		699	{
		700	req->flags &= ~EIO_FLAG_PTR2_FREE;
		701	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		702	}
		703	else
		704	SvCUR_set (req->sv2, req->result);
		705	}
		706
		707	PUSHs (sv_result);
		708	}
		709	break;
		710
		711	case EIO_CUSTOM:
		712	if (req->feed == fiemap)
		713	{
		714	#if HAVE_FIEMAP
		715	if (!req->result)
		716	{
		717	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		718
		719	if (fiemap->fm_extent_count)
		720	{
		721	AV *av = newAV ();
		722	int i;
		723
		724	while (fiemap->fm_mapped_extents)
		725	{
		726	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		727	AV *ext_av = newAV ();
		728
		729	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		730	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		731	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		732	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		733
		734	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		735	}
		736
		737	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		738	}
		739	else
		740	{
		741	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		742	PUSHs (sv_result);
		743	}
		744	}
		745	#endif
		746	}
		747	else
		748	PUSHs (sv_result);
		749	break;
		750
530	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */	751	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
531	if (req->result > 0)	752	if (req->result > 0)
532	SvIV_set (sv_result, 0);	753	SvIV_set (sv_result, 0);
533	/* FALLTHROUGH */	754	/* FALLTHROUGH */
534		755
535	default:	756	default:
…		…
555	}	776	}
556		777
557	return !!SvTRUE (ERRSV);	778	return !!SvTRUE (ERRSV);
558	}	779	}
559		780
		781	static void
560	static void req_destroy (aio_req req)	782	req_destroy (aio_req req)
561	{	783	{
562	if (req->self)	784	if (req->self)
563	{	785	{
564	sv_unmagic (req->self, PERL_MAGIC_ext);	786	sv_unmagic (req->self, PERL_MAGIC_ext);
565	SvREFCNT_dec (req->self);	787	SvREFCNT_dec (req->self);
566	}	788	}
567		789
568	SvREFCNT_dec (req->sv1);	790	SvREFCNT_dec (req->sv1);
569	SvREFCNT_dec (req->sv2);	791	SvREFCNT_dec (req->sv2);
		792	SvREFCNT_dec (req->sv3);
		793	SvREFCNT_dec (req->sv4);
570	SvREFCNT_dec (req->callback);	794	SvREFCNT_dec (req->callback);
571		795
572	Safefree (req);	796	free (req);
573	}	797	}
574		798
		799	static void
575	static void req_cancel_subs (aio_req grp)	800	req_cancel_subs (aio_req grp)
576	{	801	{
577	aio_req sub;
578
579	if (grp->type != EIO_GROUP)	802	if (grp->type != EIO_GROUP)
580	return;	803	return;
581		804
582	SvREFCNT_dec (grp->sv2);	805	SvREFCNT_dec (grp->sv2);
583	grp->sv2 = 0;	806	grp->sv2 = 0;
584		807
585	eio_grp_cancel (grp);	808	eio_grp_cancel (grp);
586	}	809	}
587		810
588	static void	811	static void ecb_cold
589	create_respipe (void)	812	create_respipe (void)
590	{	813	{
591	if (s_epipe_renew (&respipe))	814	if (s_epipe_renew (&respipe))
592	croak ("IO::AIO: unable to initialize result pipe");	815	croak ("IO::AIO: unable to initialize result pipe");
593	}	816	}
594		817
595	static void poll_wait (void)	818	static void
		819	poll_wait (void)
596	{	820	{
597	while (eio_nreqs ())	821	while (eio_nreqs ())
598	{	822	{
599	int size;	823	int size;
600		824
601	X_LOCK (reslock);	825	X_LOCK (EIO_POOL->reslock);
602	size = res_queue.size;	826	size = EIO_POOL->res_queue.size;
603	X_UNLOCK (reslock);	827	X_UNLOCK (EIO_POOL->reslock);
604		828
605	if (size)	829	if (size)
606	return;	830	return;
607		831
608	etp_maybe_start_thread ();	832	etp_maybe_start_thread (EIO_POOL);
609		833
610	s_epipe_wait (&respipe);	834	s_epipe_wait (&respipe);
611	}	835	}
612	}	836	}
613		837
614	static int poll_cb (void)	838	static int
		839	poll_cb (void)
615	{	840	{
616	for (;;)	841	for (;;)
617	{	842	{
618	int res = eio_poll ();	843	int res = eio_poll ();
619		844
…		…
625		850
626	poll_wait ();	851	poll_wait ();
627	}	852	}
628	}	853	}
629		854
630	static void atfork_child (void)	855	static void ecb_cold
		856	reinit (void)
631	{	857	{
632	create_respipe ();	858	create_respipe ();
633	}
634		859
635	/*****************************************************************************/	860	if (eio_init (want_poll, done_poll) < 0)
636		861	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	}	862	}
670
671	static MGVTBL mmap_vtbl = {
672	0, 0, 0, 0, mmap_free
673	};
674		863
675	/*****************************************************************************/	864	/*****************************************************************************/
676		865
677	static SV *	866	static SV *
678	get_cb (SV *cb_sv)	867	get_cb (SV *cb_sv)
679	{	868	{
680	SvGETMAGIC (cb_sv);	869	SvGETMAGIC (cb_sv);
681	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	870	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
682	}	871	}
683		872
		873	static aio_req ecb_noinline
		874	dreq (SV *callback)
		875	{
		876	SV *cb_cv;
		877	aio_req req;
		878	int req_pri = next_pri;
		879	next_pri = EIO_PRI_DEFAULT;
		880
		881	cb_cv = get_cb (callback);
		882
		883	req = calloc (sizeof (*req), 1);
		884	if (!req)
		885	croak ("out of memory during eio_req allocation");
		886
		887	req->callback = SvREFCNT_inc (cb_cv);
		888	req->pri = req_pri;
		889
		890	return req;
		891	}
		892
684	#define dREQ \	893	#define dREQ \
685	SV *cb_cv; \	894	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		895
699	#define REQ_SEND \	896	#define REQ_SEND \
700	PUTBACK; \	897	PUTBACK; \
701	req_submit (req); \	898	req_submit (req); \
702	SPAGAIN; \	899	SPAGAIN; \
703	\	900	\
704	if (GIMME_V != G_VOID) \	901	if (GIMME_V != G_VOID) \
705	XPUSHs (req_sv (req, aio_req_stash));	902	XPUSHs (req_sv (req, aio_req_stash));
706		903
		904	ecb_inline void
		905	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		906	{
		907	if (expect_false (SvROK (path)))
		908	{
		909	SV *rv = SvRV (path);
		910	SV *wdob;
		911
		912	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		913	{
		914	path = AvARRAY (rv)[1];
		915	wdob = AvARRAY (rv)[0];
		916
		917	if (SvOK (wdob))
		918	{
		919	*wd = SvAIO_WD (wdob);
		920	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		921	}
		922	else
		923	*wd = EIO_INVALID_WD;
		924	}
		925	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		926	{
		927	*wd = (aio_wd)(long)SvIVX (rv);
		928	*wdsv = SvREFCNT_inc_NN (rv);
		929	*ptr = ".";
		930	return; /* path set to "." */
		931	}
		932	else
		933	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		934	}
		935
		936	*pathsv = newSVsv (path);
		937	*ptr = SvPVbyte_nolen (*pathsv);
		938	}
		939
		940	static void ecb_noinline
		941	req_set_path1 (aio_req req, SV *path)
		942	{
		943	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		944	}
		945
		946	static void ecb_noinline
		947	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		948	{
		949	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		950
		951	switch (SvTYPE (rv))
		952	{
		953	case SVt_PVIO:
		954	case SVt_PVLV:
		955	case SVt_PVGV:
		956	req->type = type_fh;
		957	req->sv1 = newSVsv (fh_or_path);
		958	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		959	break;
		960
		961	default:
		962	req->type = type_path;
		963	req_set_path1 (req, fh_or_path);
		964	break;
		965	}
		966	}
		967
		968	XS(boot_IO__AIO) ecb_cold;
		969
707	MODULE = IO::AIO PACKAGE = IO::AIO	970	MODULE = IO::AIO PACKAGE = IO::AIO
708		971
709	PROTOTYPES: ENABLE	972	PROTOTYPES: ENABLE
710		973
711	BOOT:	974	BOOT:
…		…
715	IV iv;	978	IV iv;
716	} *civ, const_iv[] = {	979	} *civ, const_iv[] = {
717	# define const_niv(name, value) { # name, (IV) value },	980	# define const_niv(name, value) { # name, (IV) value },
718	# define const_iv(name) { # name, (IV) name },	981	# define const_iv(name) { # name, (IV) name },
719	# define const_eio(name) { # name, (IV) EIO_ ## name },	982	# define const_eio(name) { # name, (IV) EIO_ ## name },
		983
		984	/* you have to re-run ./gendef0 after adding/removing any constants here */
		985	/* the first block can be undef if missing */
		986	const_iv (ENOSYS)
720	const_iv (EXDEV)	987	const_iv (EXDEV)
721	const_iv (ENOSYS)	988	const_iv (EBADR)
		989
		990	/* for lseek */
		991	const_iv (SEEK_DATA)
		992	const_iv (SEEK_HOLE)
		993
		994	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		995	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		996	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		997	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		998	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		999	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1000
		1001	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1002	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1003	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1004	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1005	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1006
		1007	/* the second block will be 0 when missing */
722	const_iv (O_RDONLY)	1008	const_iv (O_RDONLY)
723	const_iv (O_WRONLY)	1009	const_iv (O_WRONLY)
724	const_iv (O_RDWR)	1010	const_iv (O_RDWR)
725	const_iv (O_CREAT)	1011	const_iv (O_CREAT)
726	const_iv (O_TRUNC)	1012	const_iv (O_TRUNC)
727	const_iv (O_EXCL)	1013	const_iv (O_EXCL)
728	const_iv (O_APPEND)	1014	const_iv (O_APPEND)
729	#ifndef _WIN32	1015
		1016	const_iv (O_ASYNC)
		1017	const_iv (O_DIRECT)
		1018	const_iv (O_NOATIME)
		1019
		1020	const_iv (O_CLOEXEC)
		1021	const_iv (O_NOCTTY)
		1022	const_iv (O_NOFOLLOW)
		1023	const_iv (O_NONBLOCK)
		1024	const_iv (O_EXEC)
		1025	const_iv (O_SEARCH)
		1026	const_iv (O_DIRECTORY)
		1027	const_iv (O_DSYNC)
		1028	const_iv (O_RSYNC)
		1029	const_iv (O_SYNC)
		1030	const_iv (O_PATH)
		1031	const_iv (O_TMPFILE)
		1032	const_iv (O_TTY_INIT)
		1033
730	const_iv (S_IFIFO)	1034	const_iv (S_IFIFO)
731	#endif	1035	const_iv (S_IFCHR)
732	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	1036	const_iv (S_IFBLK)
733	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	1037	const_iv (S_IFLNK)
734	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	1038	const_iv (S_IFREG)
735	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	1039	const_iv (S_IFDIR)
736	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	1040	const_iv (S_IFWHT)
737	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	1041	const_iv (S_IFSOCK)
738		1042	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		1043
745	const_iv (ST_RDONLY)	1044	const_iv (ST_RDONLY)
746	const_iv (ST_NOSUID)	1045	const_iv (ST_NOSUID)
747	const_iv (ST_NODEV)	1046	const_iv (ST_NODEV)
748	const_iv (ST_NOEXEC)	1047	const_iv (ST_NOEXEC)
…		…
758	const_iv (PROT_NONE)	1057	const_iv (PROT_NONE)
759	const_iv (PROT_EXEC)	1058	const_iv (PROT_EXEC)
760	const_iv (PROT_READ)	1059	const_iv (PROT_READ)
761	const_iv (PROT_WRITE)	1060	const_iv (PROT_WRITE)
762		1061
763	/*const_iv (MAP_FIXED)*/
764	const_iv (MAP_PRIVATE)	1062	const_iv (MAP_PRIVATE)
765	const_iv (MAP_SHARED)	1063	const_iv (MAP_SHARED)
		1064	const_iv (MAP_FIXED)
766	const_iv (MAP_ANONYMOUS)	1065	const_iv (MAP_ANONYMOUS)
767		1066
768	/* linuxish */	1067	/* linuxish */
769	const_iv (MAP_HUGETLB)
770	const_iv (MAP_LOCKED)	1068	const_iv (MAP_LOCKED)
771	const_iv (MAP_NORESERVE)	1069	const_iv (MAP_NORESERVE)
772	const_iv (MAP_POPULATE)	1070	const_iv (MAP_POPULATE)
773	const_iv (MAP_NONBLOCK)	1071	const_iv (MAP_NONBLOCK)
		1072	const_iv (MAP_GROWSDOWN)
		1073	const_iv (MAP_32BIT)
		1074	const_iv (MAP_HUGETLB)
		1075	const_iv (MAP_STACK)
		1076
		1077	const_iv (F_DUPFD_CLOEXEC)
		1078
		1079	const_iv (F_OFD_GETLK)
		1080	const_iv (F_OFD_SETLK)
		1081	const_iv (F_OFD_GETLKW)
		1082
		1083	const_iv (FIFREEZE)
		1084	const_iv (FITHAW)
		1085	const_iv (FITRIM)
		1086	const_iv (FICLONE)
		1087	const_iv (FICLONERANGE)
		1088	const_iv (FIDEDUPERANGE)
		1089
		1090	const_iv (FS_IOC_GETFLAGS)
		1091	const_iv (FS_IOC_SETFLAGS)
		1092	const_iv (FS_IOC_GETVERSION)
		1093	const_iv (FS_IOC_SETVERSION)
		1094	const_iv (FS_IOC_FIEMAP)
		1095	const_iv (FS_IOC_FSGETXATTR)
		1096	const_iv (FS_IOC_FSSETXATTR)
		1097	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1098	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1099	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1100
		1101	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1102
		1103	const_iv (FS_SECRM_FL)
		1104	const_iv (FS_UNRM_FL)
		1105	const_iv (FS_COMPR_FL)
		1106	const_iv (FS_SYNC_FL)
		1107	const_iv (FS_IMMUTABLE_FL)
		1108	const_iv (FS_APPEND_FL)
		1109	const_iv (FS_NODUMP_FL)
		1110	const_iv (FS_NOATIME_FL)
		1111	const_iv (FS_DIRTY_FL)
		1112	const_iv (FS_COMPRBLK_FL)
		1113	const_iv (FS_NOCOMP_FL)
		1114	const_iv (FS_ENCRYPT_FL)
		1115	const_iv (FS_BTREE_FL)
		1116	const_iv (FS_INDEX_FL)
		1117	const_iv (FS_JOURNAL_DATA_FL)
		1118	const_iv (FS_NOTAIL_FL)
		1119	const_iv (FS_DIRSYNC_FL)
		1120	const_iv (FS_TOPDIR_FL)
		1121	const_iv (FS_FL_USER_MODIFIABLE)
		1122
		1123	const_iv (FS_XFLAG_REALTIME)
		1124	const_iv (FS_XFLAG_PREALLOC)
		1125	const_iv (FS_XFLAG_IMMUTABLE)
		1126	const_iv (FS_XFLAG_APPEND)
		1127	const_iv (FS_XFLAG_SYNC)
		1128	const_iv (FS_XFLAG_NOATIME)
		1129	const_iv (FS_XFLAG_NODUMP)
		1130	const_iv (FS_XFLAG_RTINHERIT)
		1131	const_iv (FS_XFLAG_PROJINHERIT)
		1132	const_iv (FS_XFLAG_NOSYMLINKS)
		1133	const_iv (FS_XFLAG_EXTSIZE)
		1134	const_iv (FS_XFLAG_EXTSZINHERIT)
		1135	const_iv (FS_XFLAG_NODEFRAG)
		1136	const_iv (FS_XFLAG_FILESTREAM)
		1137	const_iv (FS_XFLAG_DAX)
		1138	const_iv (FS_XFLAG_HASATTR)
		1139
		1140	const_iv (FIEMAP_FLAG_SYNC)
		1141	const_iv (FIEMAP_FLAG_XATTR)
		1142	const_iv (FIEMAP_FLAGS_COMPAT)
		1143	const_iv (FIEMAP_EXTENT_LAST)
		1144	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1145	const_iv (FIEMAP_EXTENT_DELALLOC)
		1146	const_iv (FIEMAP_EXTENT_ENCODED)
		1147	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1148	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1149	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1150	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1151	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1152	const_iv (FIEMAP_EXTENT_MERGED)
		1153	const_iv (FIEMAP_EXTENT_SHARED)
		1154
		1155	const_iv (SPLICE_F_MOVE)
		1156	const_iv (SPLICE_F_NONBLOCK)
		1157	const_iv (SPLICE_F_MORE)
		1158	const_iv (SPLICE_F_GIFT)
		1159
		1160	/* these are libeio constants, and are independent of gendef0 */
		1161	const_eio (SEEK_SET)
		1162	const_eio (SEEK_CUR)
		1163	const_eio (SEEK_END)
774		1164
775	const_eio (MCL_FUTURE)	1165	const_eio (MCL_FUTURE)
776	const_eio (MCL_CURRENT)	1166	const_eio (MCL_CURRENT)
777		1167
778	const_eio (MS_ASYNC)	1168	const_eio (MS_ASYNC)
…		…
782	const_eio (MT_MODIFY)	1172	const_eio (MT_MODIFY)
783		1173
784	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1174	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
785	const_eio (SYNC_FILE_RANGE_WRITE)	1175	const_eio (SYNC_FILE_RANGE_WRITE)
786	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1176	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1177
		1178	const_eio (FALLOC_FL_KEEP_SIZE)
		1179	const_eio (FALLOC_FL_PUNCH_HOLE)
		1180	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1181	const_eio (FALLOC_FL_ZERO_RANGE)
		1182	const_eio (FALLOC_FL_INSERT_RANGE)
		1183	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1184
		1185	const_eio (RENAME_NOREPLACE)
		1186	const_eio (RENAME_EXCHANGE)
		1187	const_eio (RENAME_WHITEOUT)
787		1188
788	const_eio (READDIR_DENTS)	1189	const_eio (READDIR_DENTS)
789	const_eio (READDIR_DIRS_FIRST)	1190	const_eio (READDIR_DIRS_FIRST)
790	const_eio (READDIR_STAT_ORDER)	1191	const_eio (READDIR_STAT_ORDER)
791	const_eio (READDIR_FOUND_UNKNOWN)	1192	const_eio (READDIR_FOUND_UNKNOWN)
…		…
802	};	1203	};
803		1204
804	aio_stash = gv_stashpv ("IO::AIO" , 1);	1205	aio_stash = gv_stashpv ("IO::AIO" , 1);
805	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1206	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
806	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1207	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1208	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
807		1209
808	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1210	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
809	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1211	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
810		1212
811	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1213	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
812		1214
813	create_respipe ();	1215	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	}	1216	}
821		1217
822	void	1218	void
		1219	reinit ()
		1220	PROTOTYPE:
		1221
		1222	void
823	max_poll_reqs (int nreqs)	1223	max_poll_reqs (unsigned int nreqs)
824	PROTOTYPE: $	1224	PROTOTYPE: $
825	CODE:	1225	CODE:
826	eio_set_max_poll_reqs (nreqs);	1226	eio_set_max_poll_reqs (nreqs);
827		1227
828	void	1228	void
…		…
830	PROTOTYPE: $	1230	PROTOTYPE: $
831	CODE:	1231	CODE:
832	eio_set_max_poll_time (nseconds);	1232	eio_set_max_poll_time (nseconds);
833		1233
834	void	1234	void
835	min_parallel (int nthreads)	1235	min_parallel (unsigned int nthreads)
836	PROTOTYPE: $	1236	PROTOTYPE: $
837	CODE:	1237	CODE:
838	eio_set_min_parallel (nthreads);	1238	eio_set_min_parallel (nthreads);
839		1239
840	void	1240	void
841	max_parallel (int nthreads)	1241	max_parallel (unsigned int nthreads)
842	PROTOTYPE: $	1242	PROTOTYPE: $
843	CODE:	1243	CODE:
844	eio_set_max_parallel (nthreads);	1244	eio_set_max_parallel (nthreads);
845		1245
846	void	1246	void
847	max_idle (int nthreads)	1247	max_idle (unsigned int nthreads)
848	PROTOTYPE: $	1248	PROTOTYPE: $
849	CODE:	1249	CODE:
850	eio_set_max_idle (nthreads);	1250	eio_set_max_idle (nthreads);
851		1251
852	void	1252	void
		1253	idle_timeout (unsigned int seconds)
		1254	PROTOTYPE: $
		1255	CODE:
		1256	eio_set_idle_timeout (seconds);
		1257
		1258	void
853	max_outstanding (int maxreqs)	1259	max_outstanding (unsigned int maxreqs)
854	PROTOTYPE: $	1260	PROTOTYPE: $
855	CODE:	1261	CODE:
856	max_outstanding = maxreqs;	1262	max_outstanding = maxreqs;
857		1263
858	void	1264	void
859	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1265	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
860	PPCODE:	1266	PPCODE:
861	{	1267	{
862	dREQ;	1268	dREQ;
863		1269
		1270	req->type = EIO_WD_OPEN;
		1271	req_set_path1 (req, pathname);
		1272
		1273	REQ_SEND;
		1274	}
		1275
		1276	void
		1277	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1278	PPCODE:
		1279	{
		1280	dREQ;
		1281
864	req->type = EIO_OPEN;	1282	req->type = EIO_OPEN;
865	req->sv1 = newSVsv (pathname);	1283	req_set_path1 (req, pathname);
866	req->ptr1 = SvPVbyte_nolen (req->sv1);
867	req->int1 = flags;	1284	req->int1 = flags;
868	req->int2 = mode;	1285	req->int2 = mode;
869		1286
870	REQ_SEND;	1287	REQ_SEND;
871	}	1288	}
872		1289
873	void	1290	void
874	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1291	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
875	ALIAS:	1292	ALIAS:
876	aio_fsync = EIO_FSYNC	1293	aio_fsync = EIO_FSYNC
877	aio_fdatasync = EIO_FDATASYNC	1294	aio_fdatasync = EIO_FDATASYNC
		1295	aio_syncfs = EIO_SYNCFS
878	PPCODE:	1296	PPCODE:
879	{	1297	{
880	int fd = s_fileno_croak (fh, 0);	1298	int fd = s_fileno_croak (fh, 0);
881	dREQ;	1299	dREQ;
882		1300
883	req->type = ix;	1301	req->type = ix;
884	req->sv1 = newSVsv (fh);	1302	req->sv1 = newSVsv (fh);
885	req->int1 = fd;	1303	req->int1 = fd;
886		1304
887	REQ_SEND (req);	1305	REQ_SEND;
888	}	1306	}
889		1307
890	void	1308	void
891	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1309	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
892	PPCODE:	1310	PPCODE:
893	{	1311	{
894	int fd = s_fileno_croak (fh, 0);	1312	int fd = s_fileno_croak (fh, 0);
895	dREQ;	1313	dREQ;
896		1314
897	req->type = EIO_SYNC_FILE_RANGE;	1315	req->type = EIO_SYNC_FILE_RANGE;
898	req->sv1 = newSVsv (fh);	1316	req->sv1 = newSVsv (fh);
899	req->int1 = fd;	1317	req->int1 = fd;
900	req->offs = offset;	1318	req->offs = offset;
901	req->size = nbytes;	1319	req->size = nbytes;
902	req->int2 = flags;	1320	req->int2 = flags;
903		1321
904	REQ_SEND (req);	1322	REQ_SEND;
905	}	1323	}
906		1324
907	void	1325	void
908	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1326	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
909	PPCODE:	1327	PPCODE:
910	{	1328	{
911	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
912	int fd = s_fileno_croak (fh, 0);	1329	int fd = s_fileno_croak (fh, 0);
913	dREQ;	1330	dREQ;
914		1331
915	if (close_pipe < 0)	1332	req->type = EIO_FALLOCATE;
		1333	req->sv1 = newSVsv (fh);
		1334	req->int1 = fd;
		1335	req->int2 = mode;
		1336	req->offs = offset;
		1337	req->size = len;
		1338
		1339	REQ_SEND;
		1340	}
		1341
		1342	void
		1343	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1344	PPCODE:
		1345	{
		1346	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1347	int fd = s_fileno_croak (fh, 0);
		1348	dREQ;
		1349
		1350	if (expect_false (close_fd < 0))
916	{	1351	{
917	int pipefd [2];	1352	int pipefd [2];
918		1353
		1354	if (
		1355	#ifdef _WIN32
		1356	_pipe (pipefd, 1, _O_BINARY) < 0
		1357	#else
919	if (pipe (pipefd) < 0	1358	pipe (pipefd) < 0
920	|| close (pipefd [1]) < 0
921	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1359	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1360	#endif
		1361	|| close (pipefd [1]) < 0
		1362	)
922	abort (); /*D*/	1363	abort (); /*D*/
923		1364
924	close_pipe = pipefd [0];	1365	close_fd = pipefd [0];
925	}	1366	}
926		1367
927	req->type = EIO_DUP2;	1368	req->type = EIO_DUP2;
928	req->int1 = close_pipe;	1369	req->int1 = close_fd;
929	req->sv2 = newSVsv (fh);	1370	req->sv2 = newSVsv (fh);
930	req->int2 = fd;	1371	req->int2 = fd;
931		1372
932	REQ_SEND (req);	1373	REQ_SEND;
933	}	1374	}
934		1375
935	void	1376	void
		1377	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1378	PPCODE:
		1379	{
		1380	int fd = s_fileno_croak (fh, 0);
		1381	dREQ;
		1382
		1383	req->type = EIO_SEEK;
		1384	req->sv1 = newSVsv (fh);
		1385	req->int1 = fd;
		1386	req->offs = SvVAL64 (offset);
		1387	req->int2 = whence;
		1388
		1389	REQ_SEND;
		1390	}
		1391
		1392	void
936	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1393	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
937	ALIAS:	1394	ALIAS:
938	aio_read = EIO_READ	1395	aio_read = EIO_READ
939	aio_write = EIO_WRITE	1396	aio_write = EIO_WRITE
940	PPCODE:	1397	PPCODE:
941	{	1398	{
…		…
957	len = svlen - dataoffset;	1414	len = svlen - dataoffset;
958	}	1415	}
959	else	1416	else
960	{	1417	{
961	/* read: check type and grow scalar as necessary */	1418	/* read: check type and grow scalar as necessary */
962	SvUPGRADE (data, SVt_PV);	1419	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
963	svptr = SvGROW (data, len + dataoffset + 1);	1420	svptr = sv_grow (data, len + dataoffset);
		1421	else if (SvCUR (data) < len + dataoffset)
		1422	croak ("length + dataoffset outside of scalar, and cannot grow");
964	}	1423	}
965		1424
966	{	1425	{
967	dREQ;	1426	dREQ;
968		1427
…		…
984	REQ_SEND;	1443	REQ_SEND;
985	}	1444	}
986	}	1445	}
987		1446
988	void	1447	void
989	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1448	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1449	ALIAS:
		1450	aio_ioctl = EIO_IOCTL
		1451	aio_fcntl = EIO_FCNTL
990	PPCODE:	1452	PPCODE:
991	{	1453	{
992	SV *data;	1454	int fd = s_fileno_croak (fh, 0);
		1455	char *svptr;
		1456
		1457	if (SvPOK (arg) || !SvNIOK (arg))
		1458	{
		1459	STRLEN svlen;
		1460	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1461	#ifdef IOCPARM_LEN
		1462	STRLEN need = IOCPARM_LEN (request);
		1463	#else
		1464	STRLEN need = 256;
		1465	#endif
		1466
		1467	if (svlen < need)
		1468	svptr = SvGROW (arg, need);
		1469	}
		1470	else
		1471	svptr = (char *)SvIV (arg);
		1472
		1473	{
		1474	dREQ;
		1475
		1476	req->type = ix;
		1477	req->sv1 = newSVsv (fh);
		1478	req->int1 = fd;
		1479	req->int2 = (long)request;
		1480	req->sv2 = SvREFCNT_inc (arg);
		1481	req->ptr2 = svptr;
		1482
		1483	REQ_SEND;
		1484	}
		1485	}
		1486
		1487	void
		1488	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1489	ALIAS:
		1490	aio_readlink = EIO_READLINK
		1491	aio_realpath = EIO_REALPATH
		1492	PPCODE:
		1493	{
993	dREQ;	1494	dREQ;
994		1495
995	req->type = EIO_READLINK;	1496	req->type = ix;
996	req->sv1 = newSVsv (path);	1497	req_set_path1 (req, pathname);
997	req->ptr1 = SvPVbyte_nolen (req->sv1);
998		1498
999	REQ_SEND;	1499	REQ_SEND;
1000	}	1500	}
1001		1501
1002	void	1502	void
1003	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1503	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1004	PPCODE:	1504	PPCODE:
1005	{	1505	{
1006	int ifd = s_fileno_croak (in_fh , 0);	1506	int ifd = s_fileno_croak (in_fh , 0);
1007	int ofd = s_fileno_croak (out_fh, 1);	1507	int ofd = s_fileno_croak (out_fh, 1);
1008	dREQ;	1508	dREQ;
1009		1509
1010	req->type = EIO_SENDFILE;	1510	req->type = EIO_SENDFILE;
1011	req->sv1 = newSVsv (out_fh);	1511	req->sv1 = newSVsv (out_fh);
1012	req->int1 = ofd;	1512	req->int1 = ofd;
…		…
1017		1517
1018	REQ_SEND;	1518	REQ_SEND;
1019	}	1519	}
1020		1520
1021	void	1521	void
1022	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1522	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1023	PPCODE:	1523	PPCODE:
1024	{	1524	{
1025	int fd = s_fileno_croak (fh, 0);	1525	int fd = s_fileno_croak (fh, 0);
1026	dREQ;	1526	dREQ;
1027		1527
1028	req->type = EIO_READAHEAD;	1528	req->type = EIO_READAHEAD;
1029	req->sv1 = newSVsv (fh);	1529	req->sv1 = newSVsv (fh);
1030	req->int1 = fd;	1530	req->int1 = fd;
…		…
1033		1533
1034	REQ_SEND;	1534	REQ_SEND;
1035	}	1535	}
1036		1536
1037	void	1537	void
1038	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1538	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1039	ALIAS:	1539	ALIAS:
1040	aio_stat = EIO_STAT	1540	aio_stat = EIO_STAT
1041	aio_lstat = EIO_LSTAT	1541	aio_lstat = EIO_LSTAT
1042	aio_statvfs = EIO_STATVFS	1542	aio_statvfs = EIO_STATVFS
1043	PPCODE:	1543	PPCODE:
1044	{	1544	{
1045	dREQ;	1545	dREQ;
1046		1546
1047	req->sv1 = newSVsv (fh_or_path);	1547	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		1548
1060	REQ_SEND;	1549	REQ_SEND;
1061	}	1550	}
1062		1551
		1552	UV
		1553	major (UV dev)
		1554	ALIAS:
		1555	minor = 1
		1556	CODE:
		1557	RETVAL = ix ? minor (dev) : major (dev);
		1558	OUTPUT:
		1559	RETVAL
		1560
		1561	UV
		1562	makedev (UV maj, UV min)
		1563	CODE:
		1564	RETVAL = makedev (maj, min);
		1565	OUTPUT:
		1566	RETVAL
		1567
1063	void	1568	void
1064	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1569	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1065	PPCODE:	1570	PPCODE:
1066	{	1571	{
1067	dREQ;	1572	dREQ;
1068		1573
1069	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1574	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1070	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1575	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1071	req->sv1 = newSVsv (fh_or_path);	1576	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		1577
1084	REQ_SEND;	1578	REQ_SEND;
1085	}	1579	}
1086		1580
1087	void	1581	void
1088	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1582	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1089	PPCODE:	1583	PPCODE:
1090	{	1584	{
1091	dREQ;	1585	dREQ;
1092		1586
1093	req->sv1 = newSVsv (fh_or_path);
1094	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1587	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1095		1588	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		1589
1107	REQ_SEND;	1590	REQ_SEND;
1108	}	1591	}
1109		1592
1110	void	1593	void
1111	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1594	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1112	ALIAS:
1113	aio_chmod = EIO_CHMOD
1114	aio_mkdir = EIO_MKDIR
1115	PPCODE:	1595	PPCODE:
1116	{	1596	{
1117	dREQ;	1597	dREQ;
1118		1598
1119	req->int2 = mode;	1599	req->int2 = mode;
1120	req->sv1 = newSVsv (fh_or_path);	1600	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		1601
1133	REQ_SEND;	1602	REQ_SEND;
1134	}	1603	}
1135		1604
1136	void	1605	void
1137	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1606	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1138	PPCODE:	1607	PPCODE:
1139	{	1608	{
1140	dREQ;	1609	dREQ;
1141		1610
1142	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1611	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1143	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1612	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1144	req->sv1 = newSVsv (fh_or_path);	1613	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		1614
1157	REQ_SEND;	1615	REQ_SEND;
1158	}	1616	}
1159		1617
1160	void	1618	void
1161	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1619	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1162	PPCODE:	1620	PPCODE:
1163	{	1621	{
1164	dREQ;	1622	dREQ;
1165		1623
1166	req->type = EIO_READDIR;	1624	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;	1625	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1170		1626
1171	if (flags & EIO_READDIR_DENTS)	1627	if (flags & EIO_READDIR_DENTS)
1172	req->int1 |= EIO_READDIR_CUSTOM2;	1628	req->int1 |= EIO_READDIR_CUSTOM2;
1173		1629
		1630	req_set_path1 (req, pathname);
		1631
1174	REQ_SEND;	1632	REQ_SEND;
1175	}	1633	}
1176		1634
1177	void	1635	void
		1636	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1637	PPCODE:
		1638	{
		1639	dREQ;
		1640
		1641	req->type = EIO_MKDIR;
		1642	req->int2 = mode;
		1643	req_set_path1 (req, pathname);
		1644
		1645	REQ_SEND;
		1646	}
		1647
		1648	void
1178	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1649	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1179	ALIAS:	1650	ALIAS:
1180	aio_unlink = EIO_UNLINK	1651	aio_unlink = EIO_UNLINK
1181	aio_rmdir = EIO_RMDIR	1652	aio_rmdir = EIO_RMDIR
1182	aio_readdir = EIO_READDIR	1653	aio_readdir = EIO_READDIR
1183	PPCODE:	1654	PPCODE:
1184	{	1655	{
1185	dREQ;	1656	dREQ;
1186		1657
1187	req->type = ix;	1658	req->type = ix;
1188	req->sv1 = newSVsv (pathname);	1659	req_set_path1 (req, pathname);
1189	req->ptr1 = SvPVbyte_nolen (req->sv1);
1190		1660
1191	REQ_SEND;	1661	REQ_SEND;
1192	}	1662	}
1193		1663
1194	void	1664	void
1195	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1665	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1196	ALIAS:	1666	ALIAS:
1197	aio_link = EIO_LINK	1667	aio_link = EIO_LINK
1198	aio_symlink = EIO_SYMLINK	1668	aio_symlink = EIO_SYMLINK
1199	aio_rename = EIO_RENAME	1669	aio_rename = EIO_RENAME
1200	PPCODE:	1670	PPCODE:
1201	{	1671	{
		1672	eio_wd wd2 = 0;
1202	dREQ;	1673	dREQ;
1203		1674
1204	req->type = ix;	1675	req->type = ix;
1205	req->sv1 = newSVsv (oldpath);	1676	req_set_path1 (req, oldpath);
1206	req->ptr1 = SvPVbyte_nolen (req->sv1);	1677	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1207	req->sv2 = newSVsv (newpath);	1678	req->int3 = (long)wd2;
1208	req->ptr2 = SvPVbyte_nolen (req->sv2);
1209		1679
1210	REQ_SEND;	1680	REQ_SEND;
1211	}	1681	}
1212		1682
1213	void	1683	void
		1684	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1685	PPCODE:
		1686	{
		1687	eio_wd wd2 = 0;
		1688	dREQ;
		1689
		1690	req->type = EIO_RENAME;
		1691	req_set_path1 (req, oldpath);
		1692	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1693	req->int2 = flags;
		1694	req->int3 = (long)wd2;
		1695
		1696	REQ_SEND;
		1697	}
		1698
		1699	void
1214	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1700	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1215	PPCODE:	1701	PPCODE:
1216	{	1702	{
1217	dREQ;	1703	dREQ;
1218		1704
1219	req->type = EIO_MKNOD;	1705	req->type = EIO_MKNOD;
1220	req->sv1 = newSVsv (pathname);
1221	req->ptr1 = SvPVbyte_nolen (req->sv1);
1222	req->int2 = (mode_t)mode;	1706	req->int2 = (mode_t)mode;
1223	req->offs = dev;	1707	req->offs = dev;
		1708	req_set_path1 (req, pathname);
1224		1709
1225	REQ_SEND;	1710	REQ_SEND;
1226	}	1711	}
1227		1712
1228	void	1713	void
1229	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1714	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1230	ALIAS:	1715	ALIAS:
1231	aio_mtouch = EIO_MTOUCH	1716	aio_mtouch = EIO_MTOUCH
1232	aio_msync = EIO_MSYNC	1717	aio_msync = EIO_MSYNC
1233	PPCODE:	1718	PPCODE:
1234	{	1719	{
1235	STRLEN svlen;	1720	STRLEN svlen;
1236	char *svptr = SvPVbyte (data, svlen);	1721	char *svptr = SvPVbyte (data, svlen);
1237	UV len = SvUV (length);	1722	UV len = SvUV (length);
		1723
		1724	if (flags < 0)
		1725	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1238		1726
1239	if (offset < 0)	1727	if (offset < 0)
1240	offset += svlen;	1728	offset += svlen;
1241		1729
1242	if (offset < 0 || offset > svlen)	1730	if (offset < 0 || offset > svlen)
…		…
1257	REQ_SEND;	1745	REQ_SEND;
1258	}	1746	}
1259	}	1747	}
1260		1748
1261	void	1749	void
1262	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1750	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1263	PPCODE:	1751	PPCODE:
1264	{	1752	{
1265	STRLEN svlen;	1753	STRLEN svlen;
1266	char *svptr = SvPVbyte (data, svlen);	1754	char *svptr = SvPVbyte (data, svlen);
1267	UV len = SvUV (length);	1755	UV len = SvUV (length);
…		…
1286	REQ_SEND;	1774	REQ_SEND;
1287	}	1775	}
1288	}	1776	}
1289		1777
1290	void	1778	void
1291	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1779	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1292	PPCODE:	1780	PPCODE:
1293	{	1781	{
1294	dREQ;	1782	dREQ;
1295		1783
1296	req->type = EIO_MLOCKALL;	1784	req->type = EIO_MLOCKALL;
…		…
1298		1786
1299	REQ_SEND;	1787	REQ_SEND;
1300	}	1788	}
1301		1789
1302	void	1790	void
		1791	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1792	PPCODE:
		1793	{
		1794	int fd = s_fileno_croak (fh, 0);
		1795	dREQ;
		1796
		1797	req->type = EIO_CUSTOM;
		1798	req->sv1 = newSVsv (fh);
		1799	req->int1 = fd;
		1800
		1801	req->feed = fiemap;
		1802	#if HAVE_FIEMAP
		1803	/* keep our fingers crossed that the next two types are 64 bit */
		1804	req->offs = start;
		1805	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1806	req->int2 = flags;
		1807	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1808	#endif
		1809
		1810	REQ_SEND;
		1811	}
		1812
		1813	void
		1814	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1815	PPCODE:
		1816	{
		1817	char *svptr = 0;
		1818
		1819	sv_clear_foreign (data);
		1820
		1821	if (length) /* known length, directly read into scalar */
		1822	{
		1823	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1824	svptr = sv_grow (data, length);
		1825	else if (SvCUR (data) < length)
		1826	croak ("length outside of scalar, and cannot grow");
		1827	else
		1828	svptr = SvPVbyte_nolen (data);
		1829	}
		1830
		1831	{
		1832	dREQ;
		1833
		1834	req->type = EIO_SLURP;
		1835	req_set_path1 (req, pathname);
		1836	req->offs = offset;
		1837	req->size = length;
		1838	req->sv2 = SvREFCNT_inc (data);
		1839	req->ptr2 = svptr;
		1840
		1841	if (!SvREADONLY (data))
		1842	{
		1843	SvREADONLY_on (data);
		1844	req->flags |= FLAG_SV2_RO_OFF;
		1845	}
		1846
		1847	REQ_SEND;
		1848	}
		1849	}
		1850
		1851	void
1303	aio_busy (double delay, SV *callback=&PL_sv_undef)	1852	aio_busy (double delay, SV *callback = &PL_sv_undef)
1304	PPCODE:	1853	PPCODE:
1305	{	1854	{
1306	dREQ;	1855	dREQ;
1307		1856
1308	req->type = EIO_BUSY;	1857	req->type = EIO_BUSY;
…		…
1310		1859
1311	REQ_SEND;	1860	REQ_SEND;
1312	}	1861	}
1313		1862
1314	void	1863	void
1315	aio_group (SV *callback=&PL_sv_undef)	1864	aio_group (SV *callback = &PL_sv_undef)
1316	PPCODE:	1865	PPCODE:
1317	{	1866	{
1318	dREQ;	1867	dREQ;
1319		1868
1320	req->type = EIO_GROUP;	1869	req->type = EIO_GROUP;
1321		1870
		1871	PUTBACK;
1322	req_submit (req);	1872	req_submit (req);
		1873	SPAGAIN;
		1874
1323	XPUSHs (req_sv (req, aio_grp_stash));	1875	XPUSHs (req_sv (req, aio_grp_stash));
1324	}	1876	}
1325		1877
1326	void	1878	void
1327	aio_nop (SV *callback=&PL_sv_undef)	1879	aio_nop (SV *callback = &PL_sv_undef)
1328	ALIAS:	1880	ALIAS:
1329	aio_nop = EIO_NOP	1881	aio_nop = EIO_NOP
1330	aio_sync = EIO_SYNC	1882	aio_sync = EIO_SYNC
1331	PPCODE:	1883	PPCODE:
1332	{	1884	{
…		…
1336		1888
1337	REQ_SEND;	1889	REQ_SEND;
1338	}	1890	}
1339		1891
1340	int	1892	int
1341	aioreq_pri (int pri = 0)	1893	aioreq_pri (int pri = NO_INIT)
1342	CODE:	1894	CODE:
1343	RETVAL = next_pri;	1895	RETVAL = next_pri;
1344	if (items > 0)	1896	if (items > 0)
1345	{	1897	{
1346	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1898	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1428	CODE:	1980	CODE:
1429	RETVAL = posix_fadvise (fh, offset, length, advice);	1981	RETVAL = posix_fadvise (fh, offset, length, advice);
1430	OUTPUT:	1982	OUTPUT:
1431	RETVAL	1983	RETVAL
1432		1984
1433	ssize_t	1985	IV
1434	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1986	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1435	CODE:	1987	CODE:
1436	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1988	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1437	OUTPUT:	1989	OUTPUT:
1438	RETVAL	1990	RETVAL
1439		1991
1440	void	1992	void
1441	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1993	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1442	PPCODE:	1994	PPCODE:
1443	sv_unmagic (scalar, MMAP_MAGIC);	1995	sv_clear_foreign (scalar);
1444	{	1996	{
1445	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1997	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1446	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1998	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1447	if (addr == (void *)-1)	1999	if (addr == (void *)-1)
1448	XSRETURN_NO;	2000	XSRETURN_NO;
1449		2001
1450	sv_force_normal (scalar);	2002	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		2003
1458	if (!(prot & PROT_WRITE))	2004	if (!(prot & PROT_WRITE))
1459	SvREADONLY_on (scalar);	2005	SvREADONLY_on (scalar);
1460		2006
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;	2007	XSRETURN_YES;
1470	}	2008	}
1471		2009
1472	void	2010	void
1473	munmap (SV *scalar)	2011	munmap (SV *scalar)
1474	CODE:	2012	CODE:
1475	sv_unmagic (scalar, MMAP_MAGIC);	2013	sv_clear_foreign (scalar);
1476		2014
1477	int	2015	int
1478	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2016	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1479	ALIAS:	2017	ALIAS:
1480	mprotect = 1	2018	mprotect = 1
1481	CODE:	2019	CODE:
1482	{	2020	{
1483	STRLEN svlen;	2021	STRLEN svlen;
1484	void *addr = SvPVbyte (scalar, svlen);	2022	void *addr = SvPVbyte (scalar, svlen);
1485	size_t len = SvUV (length);	2023	STRLEN len = SvUV (length);
1486		2024
1487	if (offset < 0)	2025	if (offset < 0)
1488	offset += svlen;	2026	offset += svlen;
1489		2027
1490	if (offset < 0 || offset > svlen)	2028	if (offset < 0 || offset > svlen)
…		…
1504	}	2042	}
1505	OUTPUT:	2043	OUTPUT:
1506	RETVAL	2044	RETVAL
1507		2045
1508	int	2046	int
1509	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2047	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1510	CODE:	2048	CODE:
1511	{	2049	{
1512	STRLEN svlen;	2050	STRLEN svlen;
1513	void *addr = SvPVbyte (scalar, svlen);	2051	void *addr = SvPVbyte (scalar, svlen);
1514	size_t len = SvUV (length);	2052	size_t len = SvUV (length);
1515		2053
1516	if (offset < 0)	2054	if (offset < 0)
1517	offset += svlen;	2055	offset += svlen;
1518		2056
…		…
1522	if (!SvOK (length) || len + offset > svlen)	2060	if (!SvOK (length) || len + offset > svlen)
1523	len = svlen - offset;	2061	len = svlen - offset;
1524		2062
1525	addr = (void *)(((intptr_t)addr) + offset);	2063	addr = (void *)(((intptr_t)addr) + offset);
1526	eio_page_align (&addr, &len);	2064	eio_page_align (&addr, &len);
1527	#if _POSIX_MEMLOCK	2065	#if _POSIX_MEMLOCK_RANGE
1528	RETVAL = munlock (addr, len);	2066	RETVAL = munlock (addr, len);
1529	#else	2067	#else
1530	RETVAL = ((errno = ENOSYS), -1);	2068	RETVAL = EIO_ENOSYS ();
1531	#endif	2069	#endif
1532	}	2070	}
1533	OUTPUT:	2071	OUTPUT:
1534	RETVAL	2072	RETVAL
1535		2073
…		…
1537	munlockall ()	2075	munlockall ()
1538	CODE:	2076	CODE:
1539	#if _POSIX_MEMLOCK	2077	#if _POSIX_MEMLOCK
1540	munlockall ();	2078	munlockall ();
1541	#else	2079	#else
1542	RETVAL = -1;	2080	RETVAL = EIO_ENOSYS ();
1543	errno = ENOSYS;
1544	#endif	2081	#endif
1545	OUTPUT:	2082	OUTPUT:
1546	RETVAL	2083	RETVAL
		2084
		2085	int
		2086	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2087	CODE:
		2088	{
		2089	#if HAVE_LINUX_SPLICE
		2090	loff_t off_in_, off_out_;
		2091	RETVAL = splice (
		2092	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2093	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2094	length, flags
		2095	);
		2096	#else
		2097	RETVAL = EIO_ENOSYS ();
		2098	#endif
		2099	}
		2100	OUTPUT:
		2101	RETVAL
		2102
		2103	int
		2104	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2105	CODE:
		2106	#if HAVE_LINUX_SPLICE
		2107	RETVAL = tee (rfh, wfh, length, flags);
		2108	#else
		2109	RETVAL = EIO_ENOSYS ();
		2110	#endif
		2111	OUTPUT:
		2112	RETVAL
		2113
		2114	int
		2115	pipesize (aio_rfd rfh, int new_size = -1)
		2116	PROTOTYPE: $;$
		2117	CODE:
		2118	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2119	if (new_size >= 0)
		2120	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2121	else
		2122	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2123	#else
		2124	errno = ENOSYS;
		2125	RETVAL = -1;
		2126	#endif
		2127	OUTPUT:
		2128	RETVAL
		2129
		2130	void
		2131	pipe2 (int flags = 0)
		2132	PROTOTYPE: ;$
		2133	PPCODE:
		2134	{
		2135	int fd[2];
		2136	int res;
		2137
		2138	if (flags)
		2139	#if HAVE_PIPE2
		2140	res = pipe2 (fd, flags);
		2141	#else
		2142	res = (errno = ENOSYS, -1);
		2143	#endif
		2144	else
		2145	res = pipe (fd);
		2146
		2147	if (!res)
		2148	{
		2149	EXTEND (SP, 2);
		2150	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2151	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2152	}
		2153	}
		2154
		2155	UV
		2156	get_fdlimit ()
		2157	CODE:
		2158	#if HAVE_RLIMITS
		2159	struct rlimit rl;
		2160	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2161	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2162	#endif
		2163	XSRETURN_UNDEF;
		2164	OUTPUT:
		2165	RETVAL
		2166
		2167	void
		2168	min_fdlimit (UV limit = 0x7fffffffU)
		2169	CODE:
		2170	{
		2171	#if HAVE_RLIMITS
		2172	struct rlimit rl;
		2173	rlim_t orig_rlim_max;
		2174	UV bit;
		2175
		2176	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2177	goto fail;
		2178
		2179	if (rl.rlim_cur == RLIM_INFINITY)
		2180	XSRETURN_YES;
		2181
		2182	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2183
		2184	if (rl.rlim_cur < limit)
		2185	{
		2186	rl.rlim_cur = limit;
		2187
		2188	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2189	rl.rlim_max = rl.rlim_cur;
		2190	}
		2191
		2192	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2193	XSRETURN_YES;
		2194
		2195	if (errno == EPERM)
		2196	{
		2197	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2198	/* our limit overflows a system-wide limit */
		2199	/* try an adaptive algorithm, but do not lower the hardlimit */
		2200	rl.rlim_max = 0;
		2201	for (bit = 0x40000000U; bit; bit >>= 1)
		2202	{
		2203	rl.rlim_max |= bit;
		2204	rl.rlim_cur = rl.rlim_max;
		2205
		2206	/* nevr decrease the hard limit */
		2207	if (rl.rlim_max < orig_rlim_max)
		2208	break;
		2209
		2210	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2211	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2212	}
		2213
		2214	/* now, raise the soft limit to the max permitted */
		2215	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2216	{
		2217	rl.rlim_cur = rl.rlim_max;
		2218	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2219	errno = EPERM;
		2220	}
		2221	}
		2222	#endif
		2223	fail:
		2224	XSRETURN_UNDEF;
		2225	}
1547		2226
1548	void _on_next_submit (SV *cb)	2227	void _on_next_submit (SV *cb)
1549	CODE:	2228	CODE:
1550	SvREFCNT_dec (on_next_submit);	2229	SvREFCNT_dec (on_next_submit);
1551	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2230	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1552		2231
1553	PROTOTYPES: DISABLE	2232	PROTOTYPES: DISABLE
1554		2233
		2234	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2235
		2236	BOOT:
		2237	{
		2238	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2239	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2240	}
		2241
		2242	void
		2243	DESTROY (SV *self)
		2244	CODE:
		2245	{
		2246	aio_wd wd = SvAIO_WD (self);
		2247	#if HAVE_AT
		2248	{
		2249	SV *callback = &PL_sv_undef;
		2250	dREQ; /* clobbers next_pri :/ */
		2251	next_pri = req->pri; /* restore next_pri */
		2252	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2253	req->type = EIO_WD_CLOSE;
		2254	req->wd = wd;
		2255	REQ_SEND;
		2256	}
		2257	#else
		2258	eio_wd_close_sync (wd);
		2259	#endif
		2260	}
		2261
1555	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2262	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1556		2263
1557	void	2264	void
1558	cancel (aio_req_ornot req)	2265	cancel (aio_req_ornot req)
1559	CODE:	2266	CODE:
1560	eio_cancel (req);	2267	eio_cancel (req);
1561		2268
1562	void	2269	void
1563	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2270	cb (aio_req_ornot req, SV *callback = NO_INIT)
1564	PPCODE:	2271	PPCODE:
1565	{	2272	{
1566	if (GIMME_V != G_VOID)	2273	if (GIMME_V != G_VOID)
1567	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2274	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1568		2275
1569	if (items > 1)	2276	if (items > 1)
1570	{	2277	{
1571	SV *cb_cv =get_cb (callback);	2278	SV *cb_cv = get_cb (callback);
1572		2279
1573	SvREFCNT_dec (req->callback);	2280	SvREFCNT_dec (req->callback);
1574	req->callback = SvREFCNT_inc (cb_cv);	2281	req->callback = SvREFCNT_inc (cb_cv);
1575	}	2282	}
1576	}	2283	}
…		…
1633	limit (aio_req grp, int limit)	2340	limit (aio_req grp, int limit)
1634	CODE:	2341	CODE:
1635	eio_grp_limit (grp, limit);	2342	eio_grp_limit (grp, limit);
1636		2343
1637	void	2344	void
1638	feed (aio_req grp, SV *callback=&PL_sv_undef)	2345	feed (aio_req grp, SV *callback = &PL_sv_undef)
1639	CODE:	2346	CODE:
1640	{	2347	{
1641	SvREFCNT_dec (grp->sv2);	2348	SvREFCNT_dec (grp->sv2);
1642	grp->sv2 = newSVsv (callback);	2349	grp->sv2 = newSVsv (callback);
1643	grp->feed = aio_grp_feed;	2350	grp->feed = aio_grp_feed;

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