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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.164 by root, Tue May 4 21:14:01 2010 UTC vs.
Revision 1.261 by root, Tue Jul 24 19:32:20 2018 UTC

…		…
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
8		8
9	#include "schmorp.h"	9	#if !defined mg_findext
		10	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		11	#endif
10		12
11	#include <stddef.h>	13	#include <stddef.h>
12	#include <stdlib.h>	14	#include <stdlib.h>
13	#include <errno.h>	15	#include <errno.h>
14	#include <sys/types.h>	16	#include <sys/types.h>
		17	#include <sys/socket.h>
15	#include <sys/stat.h>	18	#include <sys/stat.h>
16	#include <sys/statvfs.h>
17	#include <limits.h>	19	#include <limits.h>
18	#include <fcntl.h>	20	#include <fcntl.h>
19	#include <sched.h>	21	#include <sched.h>
20		22
21	#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES	23	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22	# include <sys/mman.h>	24	# include <sys/mman.h>
		25	#endif
		26
		27	/* the incompetent fool that created musl keeps __linux__, refuses
		28	* to implement any linux standard apis, and also has no way to test
		29	* for his broken iplementation. don't complain to me if this fails
		30	* for you.
		31	*/
		32	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		33	# include <linux/fs.h>
		34	# ifdef FS_IOC_FIEMAP
		35	# include <linux/types.h>
		36	# include <linux/fiemap.h>
		37	# define HAVE_FIEMAP 1
		38	# endif
23	#endif	39	#endif
24		40
25	/* perl namespace pollution */	41	/* perl namespace pollution */
26	#undef VERSION	42	#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		43
77	/* perl stupidly overrides readdir and maybe others */	44	/* perl stupidly overrides readdir and maybe others */
78	/* with thread-unsafe versions, imagine that :( */	45	/* with thread-unsafe versions, imagine that :( */
79	#undef readdir	46	#undef readdir
80	#undef opendir	47	#undef opendir
81	#undef closedir	48	#undef closedir
82		49
		50	#ifdef _WIN32
		51
		52	// perl overrides all those nice libc functions
		53
		54	#undef malloc
		55	#undef free
		56	#undef open
		57	#undef read
		58	#undef write
		59	#undef send
		60	#undef recv
		61	#undef stat
		62	#undef lstat
		63	#undef fstat
		64	#undef truncate
		65	#undef ftruncate
		66	#undef open
		67	#undef link
		68	#undef close
		69	#undef unlink
		70	#undef mkdir
		71	#undef rmdir
		72	#undef rename
		73	#undef lseek
		74	#undef opendir
		75	#undef readdir
		76	#undef closedir
		77	#undef chmod
		78	#undef fchmod
		79	#undef dup
		80	#undef dup2
		81	#undef abort
		82	#undef pipe
		83
		84	#define EIO_STRUCT_STAT struct _stati64
83	#define EIO_STRUCT_STAT Stat_t	85	#define EIO_STRUCT_STATI64
84		86
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	87	#else
91	# define VAL64 NV	88
92	# define SvVAL64 SvNV	89	#include <sys/time.h>
93	# define newSVval64 newSVnv	90	#include <sys/select.h>
		91	#include <unistd.h>
		92	#include <utime.h>
		93	#include <signal.h>
		94
		95	#define EIO_STRUCT_STAT Stat_t
		96
94	#endif	97	#endif
95		98
96	/*****************************************************************************/	99	/*****************************************************************************/
97		100
98	#if __GNUC__ >= 3	101	#if __GNUC__ >= 3
…		…
104	#define expect_false(expr) expect ((expr) != 0, 0)	107	#define expect_false(expr) expect ((expr) != 0, 0)
105	#define expect_true(expr) expect ((expr) != 0, 1)	108	#define expect_true(expr) expect ((expr) != 0, 1)
106		109
107	/*****************************************************************************/	110	/*****************************************************************************/
108		111
		112	#include "libeio/config.h"
		113
		114	#include "schmorp.h"
		115
		116	#if HAVE_EVENTFD
		117	# include <sys/eventfd.h>
		118	#endif
		119
		120	#if HAVE_TIMERFD
		121	# include <sys/timerfd.h>
		122	#endif
		123
		124	#if HAVE_RLIMITS
		125	#include <sys/time.h>
		126	#include <sys/resource.h>
		127	#endif
		128
109	typedef SV SV8; /* byte-sv, used for argument-checking */	129	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	130	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	131	typedef int aio_wfd; /* write file descriptor */
112		132
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	133	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		134
115	#define EIO_REQ_MEMBERS \	135	#define EIO_REQ_MEMBERS \
116	SV *callback; \	136	SV *callback; \
117	SV *sv1, *sv2; \	137	SV *sv1, *sv2; \
		138	SV *sv3, *sv4; \
118	STRLEN stroffset; \	139	STRLEN stroffset; \
119	SV *self;	140	SV *self;
120		141
121	#define EIO_NO_WRAPPERS 1	142	#define EIO_NO_WRAPPERS 1
122		143
123	#include "libeio/eio.h"	144	#include "libeio/eio.h"
124		145
125	#ifndef POSIX_FADV_NORMAL	146	static int req_invoke (eio_req *req);
126	# define POSIX_FADV_NORMAL 0	147	#define EIO_FINISH(req) req_invoke (req)
127	# define NO_FADVISE 1	148	static void req_destroy (eio_req *grp);
128	#endif	149	#define EIO_DESTROY(req) req_destroy (req)
129	#ifndef POSIX_FADV_SEQUENTIAL
130	# define POSIX_FADV_SEQUENTIAL 0
131	#endif
132	#ifndef POSIX_FADV_RANDOM
133	# define POSIX_FADV_RANDOM 0
134	#endif
135	#ifndef POSIX_FADV_NOREUSE
136	# define POSIX_FADV_NOREUSE 0
137	#endif
138	#ifndef POSIX_FADV_WILLNEED
139	# define POSIX_FADV_WILLNEED 0
140	#endif
141	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0
143	#endif
144		150
145	#ifndef ST_NODEV	151	#include "libeio/eio.c"
146	# define ST_NODEV 0
147	#endif
148	#ifndef ST_NOEXEC
149	# define ST_NOEXEC 0
150	#endif
151	#ifndef ST_SYNCHRONOUS
152	# define ST_SYNCHRONOUS 0
153	#endif
154	#ifndef ST_MANDLOCK
155	# define ST_MANDLOCK 0
156	#endif
157	#ifndef ST_WRITE
158	# define ST_WRITE 0
159	#endif
160	#ifndef ST_APPEND
161	# define ST_APPEND 0
162	#endif
163	#ifndef ST_IMMUTABLE
164	# define ST_IMMUTABLE 0
165	#endif
166	#ifndef ST_NOATIME
167	# define ST_NOATIME 0
168	#endif
169	#ifndef ST_NODIRATIME
170	# define ST_NODIRATIME 0
171	#endif
172	#ifndef ST_RELATIME
173	# define ST_RELATIME 0
174	#endif
175		152
176	#ifndef MCL_CURRENT	153	#if !HAVE_POSIX_FADVISE
177	# define MCL_CURRENT 0	154	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
178	#endif	155	#endif
179	#ifndef MCL_FUTURE	156
180	# define MCL_FUTURE 0	157	#if !HAVE_POSIX_MADVISE
		158	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
181	#endif	159	#endif
182		160
183	#ifndef MAP_ANONYMOUS	161	#ifndef MAP_ANONYMOUS
184	# ifdef MAP_ANON	162	# ifdef MAP_ANON
185	# define MAP_ANONYMOUS MAP_ANON	163	# define MAP_ANONYMOUS MAP_ANON
186	# else	164	# else
187	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	165	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
188	# endif	166	# endif
189	#endif	167	#endif
190	#ifndef MAP_HUGETLB
191	# define MAP_HUGETLB 0
192	#endif
193	#ifndef MAP_LOCKED
194	# define MAP_LOCKED 0
195	#endif
196	#ifndef MAP_NORESERVE
197	# define MAP_NORESERVE 0
198	#endif
199	#ifndef MAP_POPULATE
200	# define MAP_POPULATE 0
201	#endif
202	#ifndef MAP_NONBLOCK
203	# define MAP_NONBLOCK 0
204	#endif
205		168
206	#ifndef PAGESIZE	169	#ifndef makedev
		170	# define makedev(maj,min) (((maj) << 8) | (min))
		171	#endif
		172	#ifndef major
		173	# define major(dev) ((dev) >> 8)
		174	#endif
		175	#ifndef minor
		176	# define minor(dev) ((dev) & 0xff)
		177	#endif
		178
		179	#if PAGESIZE <= 0
207	# define PAGESIZE sysconf (_SC_PAGESIZE)	180	# define PAGESIZE sysconf (_SC_PAGESIZE)
208	#endif	181	#endif
209		182
210	static int req_invoke (eio_req *req);	183	/*****************************************************************************/
211	#define EIO_FINISH(req) req_invoke (req)	184
212	static void req_destroy (eio_req *grp);	185	#if !_POSIX_MAPPED_FILES
213	#define EIO_DESTROY(req) req_destroy (req)	186	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		187	# define munmap(addr,length) EIO_ENOSYS ()
		188	#endif
		189
		190	#if !_POSIX_MEMORY_PROTECTION
		191	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		192	#endif
		193
		194	#if !MREMAP_MAYMOVE
		195	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		196	#endif
		197
		198	#define FOREIGN_MAGIC PERL_MAGIC_ext
		199
		200	static int ecb_cold
		201	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		202	{
		203	int old_errno = errno;
		204	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		205	errno = old_errno;
		206
		207	mg->mg_obj = 0; /* just in case */
		208
		209	SvREADONLY_off (sv);
		210
		211	if (SvPVX (sv) != mg->mg_ptr)
		212	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		213
		214	SvCUR_set (sv, 0);
		215	SvPVX (sv) = 0;
		216	SvOK_off (sv);
		217
		218	return 0;
		219	}
		220
		221	static MGVTBL mmap_vtbl = {
		222	0, 0, 0, 0, mmap_free
		223	};
		224
		225	static int ecb_cold
		226	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		227	{
		228	free (mg->mg_ptr);
		229	mg->mg_obj = 0; /* just in case */
		230
		231	SvREADONLY_off (sv);
		232
		233	if (SvPVX (sv) != mg->mg_ptr)
		234	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		235
		236	SvCUR_set (sv, 0);
		237	SvPVX (sv) = 0;
		238	SvOK_off (sv);
		239
		240	return 0;
		241	}
		242
		243	static MGVTBL sysfree_vtbl = {
		244	0, 0, 0, 0, sysfree_free
		245	};
		246
		247	/*****************************************************************************/
		248
		249	/* helper: set scalar to foreign ptr with custom free */
		250	static void
		251	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		252	{
		253	sv_force_normal (sv);
		254
		255	/* we store the length in mg_obj, as namlen is I32 :/ */
		256	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		257	->mg_obj = (SV *)length;
		258
		259	SvUPGRADE (sv, SVt_PV); /* nop... */
		260
		261	if (SvLEN (sv))
		262	Safefree (SvPVX (sv));
		263
		264	SvPVX (sv) = (char *)addr;
		265	SvCUR_set (sv, length);
		266	SvLEN_set (sv, 0);
		267	SvPOK_only (sv);
		268	}
		269
		270	static void
		271	sv_clear_foreign (SV *sv)
		272	{
		273	/* todo: iterate over magic and only free ours, but of course */
		274	/* the perl5porters will call that (correct) behaviour buggy */
		275	sv_unmagic (sv, FOREIGN_MAGIC);
		276	}
		277
		278	/*****************************************************************************/
		279
		280	/* defines all sorts of constants to 0 unless they are already defined */
		281	/* also provides const_iv_ and const_niv_ macros for them */
		282	#include "def0.h"
		283
		284	/*****************************************************************************/
		285
		286	static void
		287	fiemap (eio_req *req)
		288	{
		289	req->result = -1;
		290
		291	#if HAVE_FIEMAP
		292	/* assume some c99 */
		293	struct fiemap *fiemap = 0;
		294	size_t end_offset;
		295	int count = req->int3;
		296
		297	req->flags |= EIO_FLAG_PTR1_FREE;
		298
		299	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		300	/* increase in 3.5kb steps */
		301	if (count < 0)
		302	count = 8;
		303
		304	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		305	errno = ENOMEM;
		306	if (!fiemap)
		307	return;
		308
		309	req->ptr1 = fiemap;
		310
		311	fiemap->fm_start = req->offs;
		312	fiemap->fm_length = req->size;
		313	fiemap->fm_flags = req->int2;
		314	fiemap->fm_extent_count = count;
		315
		316	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		317	return;
		318
		319	if (req->int3 >= 0 /* not autosizing */
		320	|| !fiemap->fm_mapped_extents /* no more extents */
		321	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		322	goto done;
		323
		324	/* else we have to loop -
		325	* it would be tempting (actually I tried that first) to just query the
		326	* number of extents needed, but linux often feels like not returning all
		327	* extents, without telling us it left any out. this complicates
		328	* this quite a bit.
		329	*/
		330
		331	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		332
		333	for (;;)
		334	{
		335	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		336	char scratch[3072];
		337	struct fiemap *incmap = (struct fiemap *)scratch;
		338
		339	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		340	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		341	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		342	incmap->fm_flags = fiemap->fm_flags;
		343	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		344
		345	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		346	return;
		347
		348	if (!incmap->fm_mapped_extents)
		349	goto done;
		350
		351	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		352	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		353	errno = ENOMEM;
		354	if (!fiemap)
		355	return;
		356
		357	req->ptr1 = fiemap;
		358
		359	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		360	{
		361	struct fiemap_extent *e = incmap->fm_extents + count;
		362
		363	if (e->fe_logical + e->fe_length >= end_offset)
		364	goto done;
		365
		366	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		367
		368	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		369	goto done;
		370
		371	}
		372	}
		373
		374	done:
		375	req->result = 0;
		376
		377	#else
		378	errno = ENOSYS;
		379	#endif
		380	}
		381
		382	/*****************************************************************************/
214		383
215	enum {	384	enum {
216	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	385	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
217	};	386	};
218		387
219	#include "libeio/eio.c"
220
221	typedef eio_req *aio_req;	388	typedef eio_req *aio_req;
222	typedef eio_req *aio_req_ornot;	389	typedef eio_req *aio_req_ornot;
		390	typedef eio_wd aio_wd;
223		391
224	static SV *on_next_submit;	392	static SV *on_next_submit;
225	static int next_pri = EIO_PRI_DEFAULT;	393	static int next_pri = EIO_PRI_DEFAULT;
226	static int max_outstanding;	394	static int max_outstanding;
227		395
228	static s_epipe respipe;	396	static s_epipe respipe;
229		397
230	static void req_destroy (aio_req req);	398	static void req_destroy (aio_req req);
231	static void req_cancel (aio_req req);	399	static void req_cancel (aio_req req);
232		400
233	static void want_poll (void)	401	static void
		402	want_poll (void)
234	{	403	{
235	/* write a dummy byte to the pipe so fh becomes ready */	404	/* write a dummy byte to the pipe so fh becomes ready */
236	s_epipe_signal (&respipe);	405	s_epipe_signal (&respipe);
237	}	406	}
238		407
239	static void done_poll (void)	408	static void
		409	done_poll (void)
240	{	410	{
241	/* read any signals sent by the worker threads */	411	/* read any signals sent by the worker threads */
242	s_epipe_drain (&respipe);	412	s_epipe_drain (&respipe);
243	}	413	}
244		414
245	/* must be called at most once */	415	/* must be called at most once */
		416	static SV *
246	static SV *req_sv (aio_req req, HV *stash)	417	req_sv (aio_req req, HV *stash)
247	{	418	{
248	if (!req->self)	419	if (!req->self)
249	{	420	{
250	req->self = (SV *)newHV ();	421	req->self = (SV *)newHV ();
251	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	422	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
252	}	423	}
253		424
254	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	425	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
255	}	426	}
256		427
257	static aio_req SvAIO_REQ (SV *sv)	428	static SV *
		429	newSVaio_wd (aio_wd wd)
		430	{
		431	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		432	}
		433
		434	static aio_req
		435	SvAIO_REQ (SV *sv)
258	{	436	{
259	MAGIC *mg;	437	MAGIC *mg;
260		438
261	if (!SvROK (sv)	439	if (!SvROK (sv)
		440	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
262	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	441	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
263	&& SvSTASH (SvRV (sv)) != aio_req_stash	442	&& SvSTASH (SvRV (sv)) != aio_req_stash
264	&& !sv_derived_from (sv, "IO::AIO::REQ")))	443	&& !sv_derived_from (sv, "IO::AIO::REQ")))
265	croak ("object of class IO::AIO::REQ expected");	444	croak ("object of class IO::AIO::REQ expected");
266		445
267	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	446	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
268		447
269	return mg ? (aio_req)mg->mg_ptr : 0;	448	return mg ? (aio_req)mg->mg_ptr : 0;
270	}	449	}
271		450
		451	static aio_wd
		452	SvAIO_WD (SV *sv)
		453	{
		454	if (!SvROK (sv)
		455	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		456	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		457	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		458
		459	return (aio_wd)(long)SvIVX (SvRV (sv));
		460	}
		461
		462	static SV *
		463	newmortalFH (int fd, int flags)
		464	{
		465	if (fd < 0)
		466	return &PL_sv_undef;
		467
		468	GV *gv = (GV *)sv_newmortal ();
		469	char sym[64];
		470	int symlen;
		471
		472	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		473	gv_init (gv, aio_stash, sym, symlen, 0);
		474
		475	symlen = snprintf (
		476	sym,
		477	sizeof (sym),
		478	"%s&=%d",
		479	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		480	fd
		481	);
		482
		483	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		484	? (SV *)gv : &PL_sv_undef;
		485	}
		486
		487	static void
272	static void aio_grp_feed (aio_req grp)	488	aio_grp_feed (aio_req grp)
273	{	489	{
274	if (grp->sv2 && SvOK (grp->sv2))	490	if (grp->sv2 && SvOK (grp->sv2))
275	{	491	{
276	dSP;	492	dSP;
277		493
…		…
285	FREETMPS;	501	FREETMPS;
286	LEAVE;	502	LEAVE;
287	}	503	}
288	}	504	}
289		505
		506	static void
290	static void req_submit (eio_req *req)	507	req_submit (eio_req *req)
291	{	508	{
292	eio_submit (req);	509	eio_submit (req);
293		510
294	if (expect_false (on_next_submit))	511	if (expect_false (on_next_submit))
295	{	512	{
…		…
302	PUTBACK;	519	PUTBACK;
303	call_sv (cb, G_DISCARD | G_EVAL);	520	call_sv (cb, G_DISCARD | G_EVAL);
304	}	521	}
305	}	522	}
306		523
		524	static int
307	static int req_invoke (eio_req *req)	525	req_invoke (eio_req *req)
308	{	526	{
309	dSP;
310
311	if (req->flags & FLAG_SV2_RO_OFF)	527	if (req->flags & FLAG_SV2_RO_OFF)
312	SvREADONLY_off (req->sv2);	528	SvREADONLY_off (req->sv2);
313		529
314	if (!EIO_CANCELLED (req) && req->callback)	530	if (!EIO_CANCELLED (req) && req->callback)
315	{	531	{
		532	dSP;
		533	static SV *sv_result_cache; /* caches the result integer SV */
		534	SV *sv_result;
		535
316	ENTER;	536	ENTER;
317	SAVETMPS;	537	SAVETMPS;
318	PUSHMARK (SP);	538	PUSHMARK (SP);
319	EXTEND (SP, 1);	539	EXTEND (SP, 1);
320		540
		541	/* do not recreate the result IV from scratch each time */
		542	if (expect_true (sv_result_cache))
		543	{
		544	sv_result = sv_result_cache; sv_result_cache = 0;
		545	SvIV_set (sv_result, req->result);
		546	SvIOK_only (sv_result);
		547	}
		548	else
		549	{
		550	sv_result = newSViv (req->result);
		551	SvREADONLY_on (sv_result);
		552	}
		553
321	switch (req->type)	554	switch (req->type)
322	{	555	{
		556	case EIO_WD_OPEN:
		557	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		558	break;
		559
323	case EIO_READDIR:	560	case EIO_READDIR:
324	{	561	{
325	SV *rv = &PL_sv_undef;	562	SV *rv = &PL_sv_undef;
326		563
327	if (req->result >= 0)	564	if (req->result >= 0)
…		…
380	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	617	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
381	}	618	}
382	break;	619	break;
383		620
384	case EIO_OPEN:	621	case EIO_OPEN:
385	{	622	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
386	/* convert fd to fh */
387	SV *fh = &PL_sv_undef;
388
389	if (req->result >= 0)
390	{
391	GV *gv = (GV *)sv_newmortal ();
392	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
393	char sym [64];
394	int symlen;
395
396	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
397	gv_init (gv, aio_stash, sym, symlen, 0);
398
399	symlen = snprintf (
400	sym,
401	sizeof (sym),
402	"%s&=%d",
403	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
404	(int)req->result
405	);
406
407	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
408	fh = (SV *)gv;
409	}
410
411	PUSHs (fh);
412	}
413	break;	623	break;
414		624
415	case EIO_STATVFS:	625	case EIO_STATVFS:
416	case EIO_FSTATVFS:	626	case EIO_FSTATVFS:
417	{	627	{
418	SV *rv = &PL_sv_undef;	628	SV *rv = &PL_sv_undef;
419		629
		630	#ifndef _WIN32
420	if (req->result >= 0)	631	if (req->result >= 0)
421	{	632	{
422	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	633	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
423	HV *hv = newHV ();	634	HV *hv = newHV ();
		635	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		636	* chooses to make it a struct.
		637	*/
		638	unsigned long fsid = 0;
		639	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
424		640
425	rv = sv_2mortal (newRV_noinc ((SV *)hv));	641	rv = sv_2mortal (newRV_noinc ((SV *)hv));
426		642
427	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	643	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
428	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	644	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
430	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	646	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
431	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	647	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
432	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	648	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
433	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	649	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
434	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	650	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
435	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	651	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
436	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	652	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
437	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	653	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
438	}	654	}
		655	#endif
439		656
440	PUSHs (rv);	657	PUSHs (rv);
441	}	658	}
442		659
443	break;	660	break;
…		…
459	case EIO_NOP:	676	case EIO_NOP:
460	case EIO_BUSY:	677	case EIO_BUSY:
461	break;	678	break;
462		679
463	case EIO_READLINK:	680	case EIO_READLINK:
		681	case EIO_REALPATH:
464	if (req->result > 0)	682	if (req->result > 0)
465	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	683	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
466	break;	684	break;
467		685
468	case EIO_STAT:	686	case EIO_STAT:
469	case EIO_LSTAT:	687	case EIO_LSTAT:
470	case EIO_FSTAT:	688	case EIO_FSTAT:
471	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	689	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		690
472	PL_laststatval = req->result;	691	if (!(PL_laststatval = req->result))
		692	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
473	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	693	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
474	PUSHs (sv_2mortal (newSViv (req->result)));	694
		695	PUSHs (sv_result);
		696	break;
		697
		698	case EIO_SEEK:
		699	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
475	break;	700	break;
476		701
477	case EIO_READ:	702	case EIO_READ:
478	{	703	{
479	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	704	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
480	*SvEND (req->sv2) = 0;	705	*SvEND (req->sv2) = 0;
481	SvPOK_only (req->sv2);	706	SvPOK_only (req->sv2);
482	SvSETMAGIC (req->sv2);	707	SvSETMAGIC (req->sv2);
483	PUSHs (sv_2mortal (newSViv (req->result)));	708	PUSHs (sv_result);
484	}	709	}
485	break;	710	break;
486		711
487	case EIO_DUP2:	712	case EIO_SLURP:
		713	{
		714	if (req->result >= 0)
		715	{
		716	/* if length was originally not known, we steal the malloc'ed memory */
		717	if (req->flags & EIO_FLAG_PTR2_FREE)
		718	{
		719	req->flags &= ~EIO_FLAG_PTR2_FREE;
		720	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		721	}
		722	else
		723	{
		724	SvCUR_set (req->sv2, req->result);
		725	*SvEND (req->sv2) = 0;
		726	SvPOK_only (req->sv2);
		727	}
		728
		729	SvSETMAGIC (req->sv2);
		730	}
		731
		732	PUSHs (sv_result);
		733	}
		734	break;
		735
		736	case EIO_CUSTOM:
		737	if (req->feed == fiemap)
		738	{
		739	#if HAVE_FIEMAP
		740	if (!req->result)
		741	{
		742	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		743
		744	if (fiemap->fm_extent_count)
		745	{
		746	AV *av = newAV ();
		747	int i;
		748
		749	while (fiemap->fm_mapped_extents)
		750	{
		751	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		752	AV *ext_av = newAV ();
		753
		754	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		755	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		756	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		757	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		758
		759	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		760	}
		761
		762	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		763	}
		764	else
		765	{
		766	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		767	PUSHs (sv_result);
		768	}
		769	}
		770	#endif
		771	}
		772	else
		773	PUSHs (sv_result);
		774	break;
		775
		776	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
488	if (req->result > 0)	777	if (req->result > 0)
489	req->result = 0;	778	SvIV_set (sv_result, 0);
490	/* FALLTHROUGH */	779	/* FALLTHROUGH */
491		780
492	default:	781	default:
493	PUSHs (sv_2mortal (newSViv (req->result)));	782	PUSHs (sv_result);
494	break;	783	break;
495	}	784	}
496		785
497	errno = req->errorno;	786	errno = req->errorno;
498		787
499	PUTBACK;	788	PUTBACK;
500	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	789	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
501	SPAGAIN;	790	SPAGAIN;
502		791
		792	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		793	SvREFCNT_dec (sv_result);
		794	else
		795	sv_result_cache = sv_result;
		796
503	FREETMPS;	797	FREETMPS;
504	LEAVE;	798	LEAVE;
505		799
506	PUTBACK;	800	PUTBACK;
507	}	801	}
508		802
509	return !!SvTRUE (ERRSV);	803	return !!SvTRUE (ERRSV);
510	}	804	}
511		805
		806	static void
512	static void req_destroy (aio_req req)	807	req_destroy (aio_req req)
513	{	808	{
514	if (req->self)	809	if (req->self)
515	{	810	{
516	sv_unmagic (req->self, PERL_MAGIC_ext);	811	sv_unmagic (req->self, PERL_MAGIC_ext);
517	SvREFCNT_dec (req->self);	812	SvREFCNT_dec (req->self);
518	}	813	}
519		814
520	SvREFCNT_dec (req->sv1);	815	SvREFCNT_dec (req->sv1);
521	SvREFCNT_dec (req->sv2);	816	SvREFCNT_dec (req->sv2);
		817	SvREFCNT_dec (req->sv3);
		818	SvREFCNT_dec (req->sv4);
522	SvREFCNT_dec (req->callback);	819	SvREFCNT_dec (req->callback);
523		820
524	Safefree (req);	821	free (req);
525	}	822	}
526		823
		824	static void
527	static void req_cancel_subs (aio_req grp)	825	req_cancel_subs (aio_req grp)
528	{	826	{
529	aio_req sub;
530
531	if (grp->type != EIO_GROUP)	827	if (grp->type != EIO_GROUP)
532	return;	828	return;
533		829
534	SvREFCNT_dec (grp->sv2);	830	SvREFCNT_dec (grp->sv2);
535	grp->sv2 = 0;	831	grp->sv2 = 0;
536		832
537	eio_grp_cancel (grp);	833	eio_grp_cancel (grp);
538	}	834	}
539		835
540	static void	836	static void ecb_cold
541	create_respipe (void)	837	create_respipe (void)
542	{	838	{
543	if (s_epipe_renew (&respipe))	839	if (s_epipe_renew (&respipe))
544	croak ("IO::AIO: unable to initialize result pipe");	840	croak ("IO::AIO: unable to initialize result pipe");
545	}	841	}
546		842
547	static void poll_wait (void)	843	static void
		844	poll_wait (void)
548	{	845	{
549	while (eio_nreqs ())	846	while (eio_nreqs ())
550	{	847	{
551	int size;	848	int size;
552		849
553	X_LOCK (reslock);	850	X_LOCK (EIO_POOL->reslock);
554	size = res_queue.size;	851	size = EIO_POOL->res_queue.size;
555	X_UNLOCK (reslock);	852	X_UNLOCK (EIO_POOL->reslock);
556		853
557	if (size)	854	if (size)
558	return;	855	return;
559		856
560	etp_maybe_start_thread ();	857	etp_maybe_start_thread (EIO_POOL);
561		858
562	s_epipe_wait (&respipe);	859	s_epipe_wait (&respipe);
563	}	860	}
564	}	861	}
565		862
566	static int poll_cb (void)	863	static int
		864	poll_cb (void)
567	{	865	{
568	for (;;)	866	for (;;)
569	{	867	{
570	int res = eio_poll ();	868	int res = eio_poll ();
571		869
…		…
577		875
578	poll_wait ();	876	poll_wait ();
579	}	877	}
580	}	878	}
581		879
582	static void atfork_child (void)	880	static void ecb_cold
		881	reinit (void)
583	{	882	{
584	create_respipe ();	883	create_respipe ();
585	}
586		884
587	/*****************************************************************************/	885	if (eio_init (want_poll, done_poll) < 0)
588		886	croak ("IO::AIO: unable to initialise eio library");
589	#if !_POSIX_MAPPED_FILES
590	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
591	# define munmap(addr,length) (errno = ENOSYS, -1)
592	#endif
593
594	#define MMAP_MAGIC PERL_MAGIC_ext
595
596	static int
597	mmap_free (pTHX_ SV *sv, MAGIC *mg)
598	{
599	int old_errno = errno;
600	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
601	errno = old_errno;
602
603	mg->mg_obj = 0; /* just in case */
604
605	SvREADONLY_off (sv);
606	SvCUR_set (sv, 0);
607	SvLEN_set (sv, 0);
608	SvPVX (sv) = 0;
609	SvOK_off (sv);
610
611	return 0;
612	}	887	}
613
614	static MGVTBL mmap_vtbl = {
615	0, 0, 0, 0, mmap_free
616	};
617		888
618	/*****************************************************************************/	889	/*****************************************************************************/
619		890
620	static SV *	891	static SV *
621	get_cb (SV *cb_sv)	892	get_cb (SV *cb_sv)
622	{	893	{
623	SvGETMAGIC (cb_sv);	894	SvGETMAGIC (cb_sv);
624	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	895	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
625	}	896	}
626		897
		898	static aio_req ecb_noinline
		899	dreq (SV *callback)
		900	{
		901	SV *cb_cv;
		902	aio_req req;
		903	int req_pri = next_pri;
		904	next_pri = EIO_PRI_DEFAULT;
		905
		906	cb_cv = get_cb (callback);
		907
		908	req = calloc (sizeof (*req), 1);
		909	if (!req)
		910	croak ("out of memory during eio_req allocation");
		911
		912	req->callback = SvREFCNT_inc (cb_cv);
		913	req->pri = req_pri;
		914
		915	return req;
		916	}
		917
627	#define dREQ \	918	#define dREQ \
628	SV *cb_cv; \	919	aio_req req = dreq (callback); \
629	aio_req req; \
630	int req_pri = next_pri; \
631	next_pri = EIO_PRI_DEFAULT; \
632	\
633	cb_cv = get_cb (callback); \
634	\
635	Newz (0, req, 1, eio_req); \
636	if (!req) \
637	croak ("out of memory during eio_req allocation"); \
638	\
639	req->callback = SvREFCNT_inc (cb_cv); \
640	req->pri = req_pri
641		920
642	#define REQ_SEND \	921	#define REQ_SEND \
643	PUTBACK; \	922	PUTBACK; \
644	req_submit (req); \	923	req_submit (req); \
645	SPAGAIN; \	924	SPAGAIN; \
646	\	925	\
647	if (GIMME_V != G_VOID) \	926	if (GIMME_V != G_VOID) \
648	XPUSHs (req_sv (req, aio_req_stash));	927	XPUSHs (req_sv (req, aio_req_stash));
649		928
		929	ecb_inline void
		930	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		931	{
		932	if (expect_false (SvROK (path)))
		933	{
		934	SV *rv = SvRV (path);
		935	SV *wdob;
		936
		937	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		938	{
		939	path = AvARRAY (rv)[1];
		940	wdob = AvARRAY (rv)[0];
		941
		942	if (SvOK (wdob))
		943	{
		944	*wd = SvAIO_WD (wdob);
		945	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		946	}
		947	else
		948	*wd = EIO_INVALID_WD;
		949	}
		950	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		951	{
		952	*wd = (aio_wd)(long)SvIVX (rv);
		953	*wdsv = SvREFCNT_inc_NN (rv);
		954	*ptr = ".";
		955	return; /* path set to "." */
		956	}
		957	else
		958	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		959	}
		960
		961	*pathsv = newSVsv (path);
		962	*ptr = SvPVbyte_nolen (*pathsv);
		963	}
		964
		965	static void ecb_noinline
		966	req_set_path1 (aio_req req, SV *path)
		967	{
		968	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		969	}
		970
		971	static void ecb_noinline
		972	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		973	{
		974	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		975
		976	switch (SvTYPE (rv))
		977	{
		978	case SVt_PVIO:
		979	case SVt_PVLV:
		980	case SVt_PVGV:
		981	req->type = type_fh;
		982	req->sv1 = newSVsv (fh_or_path);
		983	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		984	break;
		985
		986	default:
		987	req->type = type_path;
		988	req_set_path1 (req, fh_or_path);
		989	break;
		990	}
		991	}
		992
		993	/*****************************************************************************/
		994
		995	static void
		996	ts_set (struct timespec *ts, NV value)
		997	{
		998	ts->tv_sec = value;
		999	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1000	}
		1001
		1002	static NV
		1003	ts_get (const struct timespec *ts)
		1004	{
		1005	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1006	}
		1007
		1008	/*****************************************************************************/
		1009
		1010	XS(boot_IO__AIO) ecb_cold;
		1011
650	MODULE = IO::AIO PACKAGE = IO::AIO	1012	MODULE = IO::AIO PACKAGE = IO::AIO
651		1013
652	PROTOTYPES: ENABLE	1014	PROTOTYPES: ENABLE
653		1015
654	BOOT:	1016	BOOT:
…		…
658	IV iv;	1020	IV iv;
659	} *civ, const_iv[] = {	1021	} *civ, const_iv[] = {
660	# define const_niv(name, value) { # name, (IV) value },	1022	# define const_niv(name, value) { # name, (IV) value },
661	# define const_iv(name) { # name, (IV) name },	1023	# define const_iv(name) { # name, (IV) name },
662	# define const_eio(name) { # name, (IV) EIO_ ## name },	1024	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1025
		1026	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1027	/* the first block can be undef if missing */
		1028	const_iv (ENOSYS)
663	const_iv (EXDEV)	1029	const_iv (EXDEV)
664	const_iv (ENOSYS)	1030	const_iv (EBADR)
		1031
		1032	/* for lseek */
		1033	const_iv (SEEK_DATA)
		1034	const_iv (SEEK_HOLE)
		1035
		1036	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1037	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1038	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1039	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1040	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1041	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1042
		1043	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1044	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1045	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1046	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1047	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1048
		1049	/* the second block will be 0 when missing */
		1050	const_iv (O_ACCMODE)
		1051
665	const_iv (O_RDONLY)	1052	const_iv (O_RDONLY)
666	const_iv (O_WRONLY)	1053	const_iv (O_WRONLY)
667	const_iv (O_RDWR)	1054	const_iv (O_RDWR)
668	const_iv (O_CREAT)	1055	const_iv (O_CREAT)
669	const_iv (O_TRUNC)	1056	const_iv (O_TRUNC)
670	const_iv (O_EXCL)	1057	const_iv (O_EXCL)
671	const_iv (O_APPEND)	1058	const_iv (O_APPEND)
672	#ifndef _WIN32	1059
		1060	const_iv (O_ASYNC)
		1061	const_iv (O_DIRECT)
		1062	const_iv (O_NOATIME)
		1063
		1064	const_iv (O_CLOEXEC)
		1065	const_iv (O_NOCTTY)
		1066	const_iv (O_NOFOLLOW)
		1067	const_iv (O_NONBLOCK)
		1068	const_iv (O_EXEC)
		1069	const_iv (O_SEARCH)
		1070	const_iv (O_DIRECTORY)
		1071	const_iv (O_DSYNC)
		1072	const_iv (O_RSYNC)
		1073	const_iv (O_SYNC)
		1074	const_iv (O_PATH)
		1075	const_iv (O_TMPFILE)
		1076	const_iv (O_TTY_INIT)
		1077
673	const_iv (S_IFIFO)	1078	const_iv (S_IFIFO)
674	#endif	1079	const_iv (S_IFCHR)
675	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	1080	const_iv (S_IFBLK)
676	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	1081	const_iv (S_IFLNK)
677	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	1082	const_iv (S_IFREG)
678	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	1083	const_iv (S_IFDIR)
679	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	1084	const_iv (S_IFWHT)
680	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	1085	const_iv (S_IFSOCK)
		1086	const_iv (S_IFMT)
681		1087
682	const_iv (ST_RDONLY)	1088	const_iv (ST_RDONLY)
683	const_iv (ST_NOSUID)	1089	const_iv (ST_NOSUID)
684	const_iv (ST_NODEV)	1090	const_iv (ST_NODEV)
685	const_iv (ST_NOEXEC)	1091	const_iv (ST_NOEXEC)
…		…
690	const_iv (ST_IMMUTABLE)	1096	const_iv (ST_IMMUTABLE)
691	const_iv (ST_NOATIME)	1097	const_iv (ST_NOATIME)
692	const_iv (ST_NODIRATIME)	1098	const_iv (ST_NODIRATIME)
693	const_iv (ST_RELATIME)	1099	const_iv (ST_RELATIME)
694		1100
		1101	const_iv (PROT_NONE)
695	const_iv (PROT_EXEC)	1102	const_iv (PROT_EXEC)
696	const_iv (PROT_NONE)
697	const_iv (PROT_READ)	1103	const_iv (PROT_READ)
698	const_iv (PROT_WRITE)	1104	const_iv (PROT_WRITE)
699		1105
700	/*const_iv (MAP_FIXED)*/
701	const_iv (MAP_PRIVATE)	1106	const_iv (MAP_PRIVATE)
702	const_iv (MAP_SHARED)	1107	const_iv (MAP_SHARED)
		1108	const_iv (MAP_FIXED)
703	const_iv (MAP_ANONYMOUS)	1109	const_iv (MAP_ANONYMOUS)
704		1110
705	/* linuxish */	1111	/* linuxish */
706	const_iv (MAP_HUGETLB)
707	const_iv (MAP_LOCKED)	1112	const_iv (MAP_LOCKED)
708	const_iv (MAP_NORESERVE)	1113	const_iv (MAP_NORESERVE)
709	const_iv (MAP_POPULATE)	1114	const_iv (MAP_POPULATE)
710	const_iv (MAP_NONBLOCK)	1115	const_iv (MAP_NONBLOCK)
		1116	const_iv (MAP_GROWSDOWN)
		1117	const_iv (MAP_32BIT)
		1118	const_iv (MAP_HUGETLB)
		1119	const_iv (MAP_STACK)
711		1120
		1121	const_iv (MREMAP_MAYMOVE)
		1122	const_iv (MREMAP_FIXED)
		1123
		1124	const_iv (F_DUPFD_CLOEXEC)
		1125
		1126	const_iv (MSG_CMSG_CLOEXEC)
		1127	const_iv (SOCK_CLOEXEC)
		1128
		1129	const_iv (F_OFD_GETLK)
		1130	const_iv (F_OFD_SETLK)
		1131	const_iv (F_OFD_GETLKW)
		1132
		1133	const_iv (FIFREEZE)
		1134	const_iv (FITHAW)
		1135	const_iv (FITRIM)
		1136	const_iv (FICLONE)
		1137	const_iv (FICLONERANGE)
		1138	const_iv (FIDEDUPERANGE)
		1139
		1140	const_iv (FS_IOC_GETFLAGS)
		1141	const_iv (FS_IOC_SETFLAGS)
		1142	const_iv (FS_IOC_GETVERSION)
		1143	const_iv (FS_IOC_SETVERSION)
		1144	const_iv (FS_IOC_FIEMAP)
		1145	const_iv (FS_IOC_FSGETXATTR)
		1146	const_iv (FS_IOC_FSSETXATTR)
		1147	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1148	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1149	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1150
		1151	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1152
		1153	const_iv (FS_SECRM_FL)
		1154	const_iv (FS_UNRM_FL)
		1155	const_iv (FS_COMPR_FL)
		1156	const_iv (FS_SYNC_FL)
		1157	const_iv (FS_IMMUTABLE_FL)
		1158	const_iv (FS_APPEND_FL)
		1159	const_iv (FS_NODUMP_FL)
		1160	const_iv (FS_NOATIME_FL)
		1161	const_iv (FS_DIRTY_FL)
		1162	const_iv (FS_COMPRBLK_FL)
		1163	const_iv (FS_NOCOMP_FL)
		1164	const_iv (FS_ENCRYPT_FL)
		1165	const_iv (FS_BTREE_FL)
		1166	const_iv (FS_INDEX_FL)
		1167	const_iv (FS_JOURNAL_DATA_FL)
		1168	const_iv (FS_NOTAIL_FL)
		1169	const_iv (FS_DIRSYNC_FL)
		1170	const_iv (FS_TOPDIR_FL)
		1171	const_iv (FS_FL_USER_MODIFIABLE)
		1172
		1173	const_iv (FS_XFLAG_REALTIME)
		1174	const_iv (FS_XFLAG_PREALLOC)
		1175	const_iv (FS_XFLAG_IMMUTABLE)
		1176	const_iv (FS_XFLAG_APPEND)
		1177	const_iv (FS_XFLAG_SYNC)
		1178	const_iv (FS_XFLAG_NOATIME)
		1179	const_iv (FS_XFLAG_NODUMP)
		1180	const_iv (FS_XFLAG_RTINHERIT)
		1181	const_iv (FS_XFLAG_PROJINHERIT)
		1182	const_iv (FS_XFLAG_NOSYMLINKS)
		1183	const_iv (FS_XFLAG_EXTSIZE)
		1184	const_iv (FS_XFLAG_EXTSZINHERIT)
		1185	const_iv (FS_XFLAG_NODEFRAG)
		1186	const_iv (FS_XFLAG_FILESTREAM)
		1187	const_iv (FS_XFLAG_DAX)
		1188	const_iv (FS_XFLAG_HASATTR)
		1189
		1190	const_iv (FIEMAP_FLAG_SYNC)
		1191	const_iv (FIEMAP_FLAG_XATTR)
		1192	const_iv (FIEMAP_FLAGS_COMPAT)
		1193	const_iv (FIEMAP_EXTENT_LAST)
		1194	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1195	const_iv (FIEMAP_EXTENT_DELALLOC)
		1196	const_iv (FIEMAP_EXTENT_ENCODED)
		1197	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1198	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1199	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1200	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1201	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1202	const_iv (FIEMAP_EXTENT_MERGED)
		1203	const_iv (FIEMAP_EXTENT_SHARED)
		1204
		1205	const_iv (SPLICE_F_MOVE)
		1206	const_iv (SPLICE_F_NONBLOCK)
		1207	const_iv (SPLICE_F_MORE)
		1208	const_iv (SPLICE_F_GIFT)
		1209
		1210	const_iv (EFD_CLOEXEC)
		1211	const_iv (EFD_NONBLOCK)
		1212	const_iv (EFD_SEMAPHORE)
		1213
		1214	const_iv (CLOCK_REALTIME)
		1215	const_iv (CLOCK_MONOTONIC)
		1216	const_iv (CLOCK_BOOTTIME)
		1217	const_iv (CLOCK_REALTIME_ALARM)
		1218	const_iv (CLOCK_BOOTTIME_ALARM)
		1219
		1220	const_iv (TFD_NONBLOCK)
		1221	const_iv (TFD_CLOEXEC)
		1222
		1223	const_iv (TFD_TIMER_ABSTIME)
		1224	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1225
		1226	/* these are libeio constants, and are independent of gendef0 */
		1227	const_eio (SEEK_SET)
		1228	const_eio (SEEK_CUR)
		1229	const_eio (SEEK_END)
		1230
712	const_iv (MCL_FUTURE)	1231	const_eio (MCL_FUTURE)
713	const_iv (MCL_CURRENT)	1232	const_eio (MCL_CURRENT)
714		1233
715	const_eio (MS_ASYNC)	1234	const_eio (MS_ASYNC)
716	const_eio (MS_INVALIDATE)	1235	const_eio (MS_INVALIDATE)
717	const_eio (MS_SYNC)	1236	const_eio (MS_SYNC)
718		1237
719	const_eio (MT_MODIFY)	1238	const_eio (MT_MODIFY)
720		1239
721	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1240	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
722	const_eio (SYNC_FILE_RANGE_WRITE)	1241	const_eio (SYNC_FILE_RANGE_WRITE)
723	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1242	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1243
		1244	const_eio (FALLOC_FL_KEEP_SIZE)
		1245	const_eio (FALLOC_FL_PUNCH_HOLE)
		1246	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1247	const_eio (FALLOC_FL_ZERO_RANGE)
		1248	const_eio (FALLOC_FL_INSERT_RANGE)
		1249	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1250
		1251	const_eio (RENAME_NOREPLACE)
		1252	const_eio (RENAME_EXCHANGE)
		1253	const_eio (RENAME_WHITEOUT)
724		1254
725	const_eio (READDIR_DENTS)	1255	const_eio (READDIR_DENTS)
726	const_eio (READDIR_DIRS_FIRST)	1256	const_eio (READDIR_DIRS_FIRST)
727	const_eio (READDIR_STAT_ORDER)	1257	const_eio (READDIR_STAT_ORDER)
728	const_eio (READDIR_FOUND_UNKNOWN)	1258	const_eio (READDIR_FOUND_UNKNOWN)
…		…
739	};	1269	};
740		1270
741	aio_stash = gv_stashpv ("IO::AIO" , 1);	1271	aio_stash = gv_stashpv ("IO::AIO" , 1);
742	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1272	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
743	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1273	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1274	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
744		1275
745	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1276	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
746	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1277	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
747		1278
748	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1279	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
749		1280
750	create_respipe ();	1281	reinit ();
751
752	if (eio_init (want_poll, done_poll) < 0)
753	croak ("IO::AIO: unable to initialise eio library");
754
755	/* atfork child called in fifo order, so before eio's handler */
756	X_THREAD_ATFORK (0, 0, atfork_child);
757	}	1282	}
758		1283
759	void	1284	void
		1285	reinit ()
		1286	PROTOTYPE:
		1287
		1288	void
760	max_poll_reqs (int nreqs)	1289	max_poll_reqs (unsigned int nreqs)
761	PROTOTYPE: $	1290	PROTOTYPE: $
762	CODE:	1291	CODE:
763	eio_set_max_poll_reqs (nreqs);	1292	eio_set_max_poll_reqs (nreqs);
764		1293
765	void	1294	void
…		…
767	PROTOTYPE: $	1296	PROTOTYPE: $
768	CODE:	1297	CODE:
769	eio_set_max_poll_time (nseconds);	1298	eio_set_max_poll_time (nseconds);
770		1299
771	void	1300	void
772	min_parallel (int nthreads)	1301	min_parallel (unsigned int nthreads)
773	PROTOTYPE: $	1302	PROTOTYPE: $
774	CODE:	1303	CODE:
775	eio_set_min_parallel (nthreads);	1304	eio_set_min_parallel (nthreads);
776		1305
777	void	1306	void
778	max_parallel (int nthreads)	1307	max_parallel (unsigned int nthreads)
779	PROTOTYPE: $	1308	PROTOTYPE: $
780	CODE:	1309	CODE:
781	eio_set_max_parallel (nthreads);	1310	eio_set_max_parallel (nthreads);
782		1311
783	void	1312	void
784	max_idle (int nthreads)	1313	max_idle (unsigned int nthreads)
785	PROTOTYPE: $	1314	PROTOTYPE: $
786	CODE:	1315	CODE:
787	eio_set_max_idle (nthreads);	1316	eio_set_max_idle (nthreads);
788		1317
789	void	1318	void
		1319	idle_timeout (unsigned int seconds)
		1320	PROTOTYPE: $
		1321	CODE:
		1322	eio_set_idle_timeout (seconds);
		1323
		1324	void
790	max_outstanding (int maxreqs)	1325	max_outstanding (unsigned int maxreqs)
791	PROTOTYPE: $	1326	PROTOTYPE: $
792	CODE:	1327	CODE:
793	max_outstanding = maxreqs;	1328	max_outstanding = maxreqs;
794		1329
795	void	1330	void
796	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1331	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
797	PROTOTYPE: $$$;$
798	PPCODE:	1332	PPCODE:
799	{	1333	{
800	dREQ;	1334	dREQ;
801		1335
		1336	req->type = EIO_WD_OPEN;
		1337	req_set_path1 (req, pathname);
		1338
		1339	REQ_SEND;
		1340	}
		1341
		1342	void
		1343	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1344	PPCODE:
		1345	{
		1346	dREQ;
		1347
802	req->type = EIO_OPEN;	1348	req->type = EIO_OPEN;
803	req->sv1 = newSVsv (pathname);	1349	req_set_path1 (req, pathname);
804	req->ptr1 = SvPVbyte_nolen (req->sv1);
805	req->int1 = flags;	1350	req->int1 = flags;
806	req->int2 = mode;	1351	req->int2 = mode;
807		1352
808	REQ_SEND;	1353	REQ_SEND;
809	}	1354	}
810		1355
811	void	1356	void
812	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1357	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
813	PROTOTYPE: $;$
814	ALIAS:	1358	ALIAS:
815	aio_fsync = EIO_FSYNC	1359	aio_fsync = EIO_FSYNC
816	aio_fdatasync = EIO_FDATASYNC	1360	aio_fdatasync = EIO_FDATASYNC
		1361	aio_syncfs = EIO_SYNCFS
817	PPCODE:	1362	PPCODE:
818	{	1363	{
819	int fd = s_fileno_croak (fh, 0);	1364	int fd = s_fileno_croak (fh, 0);
820	dREQ;	1365	dREQ;
821		1366
822	req->type = ix;	1367	req->type = ix;
823	req->sv1 = newSVsv (fh);	1368	req->sv1 = newSVsv (fh);
824	req->int1 = fd;	1369	req->int1 = fd;
825		1370
826	REQ_SEND (req);	1371	REQ_SEND;
827	}	1372	}
828		1373
829	void	1374	void
830	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1375	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
831	PROTOTYPE: $$$$;$
832	PPCODE:	1376	PPCODE:
833	{	1377	{
834	int fd = s_fileno_croak (fh, 0);	1378	int fd = s_fileno_croak (fh, 0);
835	dREQ;	1379	dREQ;
836		1380
837	req->type = EIO_SYNC_FILE_RANGE;	1381	req->type = EIO_SYNC_FILE_RANGE;
838	req->sv1 = newSVsv (fh);	1382	req->sv1 = newSVsv (fh);
839	req->int1 = fd;	1383	req->int1 = fd;
840	req->offs = offset;	1384	req->offs = offset;
841	req->size = nbytes;	1385	req->size = nbytes;
842	req->int2 = flags;	1386	req->int2 = flags;
843		1387
844	REQ_SEND (req);	1388	REQ_SEND;
845	}	1389	}
846		1390
847	void	1391	void
848	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1392	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
849	PROTOTYPE: $;$
850	PPCODE:	1393	PPCODE:
851	{	1394	{
852	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
853	int fd = s_fileno_croak (fh, 0);	1395	int fd = s_fileno_croak (fh, 0);
854	dREQ;	1396	dREQ;
855		1397
856	if (close_pipe < 0)	1398	req->type = EIO_FALLOCATE;
		1399	req->sv1 = newSVsv (fh);
		1400	req->int1 = fd;
		1401	req->int2 = mode;
		1402	req->offs = offset;
		1403	req->size = len;
		1404
		1405	REQ_SEND;
		1406	}
		1407
		1408	void
		1409	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1410	PPCODE:
		1411	{
		1412	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1413	int fd = s_fileno_croak (fh, 0);
		1414	dREQ;
		1415
		1416	if (expect_false (close_fd < 0))
857	{	1417	{
858	int pipefd [2];	1418	int pipefd [2];
859		1419
		1420	if (
		1421	#ifdef _WIN32
		1422	_pipe (pipefd, 1, _O_BINARY) < 0
		1423	#else
860	if (pipe (pipefd) < 0	1424	pipe (pipefd) < 0
861	|| close (pipefd [1]) < 0
862	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1425	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1426	#endif
		1427	|| close (pipefd [1]) < 0
		1428	)
863	abort (); /*D*/	1429	abort (); /*D*/
864		1430
865	close_pipe = pipefd [0];	1431	close_fd = pipefd [0];
866	}	1432	}
867		1433
868	req->type = EIO_DUP2;	1434	req->type = EIO_DUP2;
869	req->int1 = close_pipe;	1435	req->int1 = close_fd;
870	req->sv2 = newSVsv (fh);	1436	req->sv2 = newSVsv (fh);
871	req->int2 = fd;	1437	req->int2 = fd;
872		1438
873	REQ_SEND (req);	1439	REQ_SEND;
874	}	1440	}
875		1441
876	void	1442	void
		1443	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1444	PPCODE:
		1445	{
		1446	int fd = s_fileno_croak (fh, 0);
		1447	dREQ;
		1448
		1449	req->type = EIO_SEEK;
		1450	req->sv1 = newSVsv (fh);
		1451	req->int1 = fd;
		1452	req->offs = SvVAL64 (offset);
		1453	req->int2 = whence;
		1454
		1455	REQ_SEND;
		1456	}
		1457
		1458	void
877	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1459	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
878	ALIAS:	1460	ALIAS:
879	aio_read = EIO_READ	1461	aio_read = EIO_READ
880	aio_write = EIO_WRITE	1462	aio_write = EIO_WRITE
881	PROTOTYPE: $$$$$;$
882	PPCODE:	1463	PPCODE:
883	{	1464	{
884	STRLEN svlen;	1465	STRLEN svlen;
885	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1466	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
886	char *svptr = SvPVbyte (data, svlen);	1467	char *svptr = SvPVbyte (data, svlen);
…		…
899	len = svlen - dataoffset;	1480	len = svlen - dataoffset;
900	}	1481	}
901	else	1482	else
902	{	1483	{
903	/* read: check type and grow scalar as necessary */	1484	/* read: check type and grow scalar as necessary */
904	SvUPGRADE (data, SVt_PV);	1485	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
905	svptr = SvGROW (data, len + dataoffset + 1);	1486	svptr = sv_grow (data, len + dataoffset + 1);
		1487	else if (SvCUR (data) < len + dataoffset)
		1488	croak ("length + dataoffset outside of scalar, and cannot grow");
906	}	1489	}
907		1490
908	{	1491	{
909	dREQ;	1492	dREQ;
910		1493
…		…
926	REQ_SEND;	1509	REQ_SEND;
927	}	1510	}
928	}	1511	}
929		1512
930	void	1513	void
931	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1514	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
932	PROTOTYPE: $$;$	1515	ALIAS:
		1516	aio_ioctl = EIO_IOCTL
		1517	aio_fcntl = EIO_FCNTL
933	PPCODE:	1518	PPCODE:
934	{	1519	{
935	SV *data;	1520	int fd = s_fileno_croak (fh, 0);
		1521	char *svptr;
		1522
		1523	if (SvPOK (arg) || !SvNIOK (arg))
		1524	{
		1525	STRLEN svlen;
		1526	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1527	#ifdef IOCPARM_LEN
		1528	STRLEN need = IOCPARM_LEN (request);
		1529	#else
		1530	STRLEN need = 256;
		1531	#endif
		1532
		1533	if (svlen < need)
		1534	svptr = SvGROW (arg, need);
		1535	}
		1536	else
		1537	svptr = (char *)SvIV (arg);
		1538
		1539	{
		1540	dREQ;
		1541
		1542	req->type = ix;
		1543	req->sv1 = newSVsv (fh);
		1544	req->int1 = fd;
		1545	req->int2 = (long)request;
		1546	req->sv2 = SvREFCNT_inc (arg);
		1547	req->ptr2 = svptr;
		1548
		1549	REQ_SEND;
		1550	}
		1551	}
		1552
		1553	void
		1554	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1555	ALIAS:
		1556	aio_readlink = EIO_READLINK
		1557	aio_realpath = EIO_REALPATH
		1558	PPCODE:
		1559	{
936	dREQ;	1560	dREQ;
937		1561
938	req->type = EIO_READLINK;	1562	req->type = ix;
939	req->sv1 = newSVsv (path);	1563	req_set_path1 (req, pathname);
940	req->ptr1 = SvPVbyte_nolen (req->sv1);
941		1564
942	REQ_SEND;	1565	REQ_SEND;
943	}	1566	}
944		1567
945	void	1568	void
946	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1569	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
947	PROTOTYPE: $$$$;$
948	PPCODE:	1570	PPCODE:
949	{	1571	{
950	int ifd = s_fileno_croak (in_fh , 0);	1572	int ifd = s_fileno_croak (in_fh , 0);
951	int ofd = s_fileno_croak (out_fh, 1);	1573	int ofd = s_fileno_croak (out_fh, 1);
952	dREQ;	1574	dREQ;
953		1575
954	req->type = EIO_SENDFILE;	1576	req->type = EIO_SENDFILE;
955	req->sv1 = newSVsv (out_fh);	1577	req->sv1 = newSVsv (out_fh);
956	req->int1 = ofd;	1578	req->int1 = ofd;
…		…
961		1583
962	REQ_SEND;	1584	REQ_SEND;
963	}	1585	}
964		1586
965	void	1587	void
966	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1588	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
967	PROTOTYPE: $$$;$
968	PPCODE:	1589	PPCODE:
969	{	1590	{
970	int fd = s_fileno_croak (fh, 0);	1591	int fd = s_fileno_croak (fh, 0);
971	dREQ;	1592	dREQ;
972		1593
973	req->type = EIO_READAHEAD;	1594	req->type = EIO_READAHEAD;
974	req->sv1 = newSVsv (fh);	1595	req->sv1 = newSVsv (fh);
975	req->int1 = fd;	1596	req->int1 = fd;
…		…
978		1599
979	REQ_SEND;	1600	REQ_SEND;
980	}	1601	}
981		1602
982	void	1603	void
983	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1604	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
984	ALIAS:	1605	ALIAS:
985	aio_stat = EIO_STAT	1606	aio_stat = EIO_STAT
986	aio_lstat = EIO_LSTAT	1607	aio_lstat = EIO_LSTAT
987	aio_statvfs = EIO_STATVFS	1608	aio_statvfs = EIO_STATVFS
988	PPCODE:	1609	PPCODE:
989	{	1610	{
990	dREQ;	1611	dREQ;
991		1612
992	req->sv1 = newSVsv (fh_or_path);	1613	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
993
994	if (SvPOK (req->sv1))
995	{
996	req->type = ix;
997	req->ptr1 = SvPVbyte_nolen (req->sv1);
998	}
999	else
1000	{
1001	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1002	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1003	}
1004		1614
1005	REQ_SEND;	1615	REQ_SEND;
1006	}	1616	}
1007		1617
		1618	UV
		1619	major (UV dev)
		1620	ALIAS:
		1621	minor = 1
		1622	CODE:
		1623	RETVAL = ix ? minor (dev) : major (dev);
		1624	OUTPUT:
		1625	RETVAL
		1626
		1627	UV
		1628	makedev (UV maj, UV min)
		1629	CODE:
		1630	RETVAL = makedev (maj, min);
		1631	OUTPUT:
		1632	RETVAL
		1633
1008	void	1634	void
1009	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1635	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1010	PPCODE:	1636	PPCODE:
1011	{	1637	{
1012	dREQ;	1638	dREQ;
1013		1639
1014	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1640	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1015	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1641	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1016	req->sv1 = newSVsv (fh_or_path);	1642	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1017
1018	if (SvPOK (req->sv1))
1019	{
1020	req->type = EIO_UTIME;
1021	req->ptr1 = SvPVbyte_nolen (req->sv1);
1022	}
1023	else
1024	{
1025	req->type = EIO_FUTIME;
1026	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1027	}
1028		1643
1029	REQ_SEND;	1644	REQ_SEND;
1030	}	1645	}
1031		1646
1032	void	1647	void
1033	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1648	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1034	PPCODE:	1649	PPCODE:
1035	{	1650	{
1036	dREQ;	1651	dREQ;
1037		1652
1038	req->sv1 = newSVsv (fh_or_path);
1039	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1653	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1040		1654	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1041	if (SvPOK (req->sv1))
1042	{
1043	req->type = EIO_TRUNCATE;
1044	req->ptr1 = SvPVbyte_nolen (req->sv1);
1045	}
1046	else
1047	{
1048	req->type = EIO_FTRUNCATE;
1049	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1050	}
1051		1655
1052	REQ_SEND;	1656	REQ_SEND;
1053	}	1657	}
1054		1658
1055	void	1659	void
1056	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1660	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1057	ALIAS:
1058	aio_chmod = EIO_CHMOD
1059	aio_mkdir = EIO_MKDIR
1060	PPCODE:	1661	PPCODE:
1061	{	1662	{
1062	dREQ;	1663	dREQ;
1063		1664
1064	req->int2 = mode;	1665	req->int2 = mode;
1065	req->sv1 = newSVsv (fh_or_path);	1666	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1066
1067	if (SvPOK (req->sv1))
1068	{
1069	req->type = ix;
1070	req->ptr1 = SvPVbyte_nolen (req->sv1);
1071	}
1072	else
1073	{
1074	req->type = EIO_FCHMOD;
1075	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1076	}
1077		1667
1078	REQ_SEND;	1668	REQ_SEND;
1079	}	1669	}
1080		1670
1081	void	1671	void
1082	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1672	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1083	PPCODE:	1673	PPCODE:
1084	{	1674	{
1085	dREQ;	1675	dREQ;
1086		1676
1087	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1677	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1088	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1678	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1089	req->sv1 = newSVsv (fh_or_path);	1679	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1090
1091	if (SvPOK (req->sv1))
1092	{
1093	req->type = EIO_CHOWN;
1094	req->ptr1 = SvPVbyte_nolen (req->sv1);
1095	}
1096	else
1097	{
1098	req->type = EIO_FCHOWN;
1099	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1100	}
1101		1680
1102	REQ_SEND;	1681	REQ_SEND;
1103	}	1682	}
1104		1683
1105	void	1684	void
1106	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1685	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1107	PPCODE:	1686	PPCODE:
1108	{	1687	{
1109	dREQ;	1688	dREQ;
1110		1689
1111	req->type = EIO_READDIR;	1690	req->type = EIO_READDIR;
1112	req->sv1 = newSVsv (pathname);
1113	req->ptr1 = SvPVbyte_nolen (req->sv1);
1114	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1691	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1115		1692
1116	if (flags & EIO_READDIR_DENTS)	1693	if (flags & EIO_READDIR_DENTS)
1117	req->int1 |= EIO_READDIR_CUSTOM2;	1694	req->int1 |= EIO_READDIR_CUSTOM2;
1118		1695
		1696	req_set_path1 (req, pathname);
		1697
1119	REQ_SEND;	1698	REQ_SEND;
1120	}	1699	}
1121		1700
1122	void	1701	void
		1702	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1703	PPCODE:
		1704	{
		1705	dREQ;
		1706
		1707	req->type = EIO_MKDIR;
		1708	req->int2 = mode;
		1709	req_set_path1 (req, pathname);
		1710
		1711	REQ_SEND;
		1712	}
		1713
		1714	void
1123	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1715	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1124	ALIAS:	1716	ALIAS:
1125	aio_unlink = EIO_UNLINK	1717	aio_unlink = EIO_UNLINK
1126	aio_rmdir = EIO_RMDIR	1718	aio_rmdir = EIO_RMDIR
1127	aio_readdir = EIO_READDIR	1719	aio_readdir = EIO_READDIR
1128	PPCODE:	1720	PPCODE:
1129	{	1721	{
1130	dREQ;	1722	dREQ;
1131		1723
1132	req->type = ix;	1724	req->type = ix;
1133	req->sv1 = newSVsv (pathname);	1725	req_set_path1 (req, pathname);
1134	req->ptr1 = SvPVbyte_nolen (req->sv1);
1135		1726
1136	REQ_SEND;	1727	REQ_SEND;
1137	}	1728	}
1138		1729
1139	void	1730	void
1140	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1731	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1141	ALIAS:	1732	ALIAS:
1142	aio_link = EIO_LINK	1733	aio_link = EIO_LINK
1143	aio_symlink = EIO_SYMLINK	1734	aio_symlink = EIO_SYMLINK
1144	aio_rename = EIO_RENAME	1735	aio_rename = EIO_RENAME
1145	PPCODE:	1736	PPCODE:
1146	{	1737	{
		1738	eio_wd wd2 = 0;
1147	dREQ;	1739	dREQ;
1148		1740
1149	req->type = ix;	1741	req->type = ix;
1150	req->sv1 = newSVsv (oldpath);	1742	req_set_path1 (req, oldpath);
1151	req->ptr1 = SvPVbyte_nolen (req->sv1);	1743	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1152	req->sv2 = newSVsv (newpath);	1744	req->int3 = (long)wd2;
1153	req->ptr2 = SvPVbyte_nolen (req->sv2);
1154		1745
1155	REQ_SEND;	1746	REQ_SEND;
1156	}	1747	}
1157		1748
1158	void	1749	void
		1750	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1751	PPCODE:
		1752	{
		1753	eio_wd wd2 = 0;
		1754	dREQ;
		1755
		1756	req->type = EIO_RENAME;
		1757	req_set_path1 (req, oldpath);
		1758	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1759	req->int2 = flags;
		1760	req->int3 = (long)wd2;
		1761
		1762	REQ_SEND;
		1763	}
		1764
		1765	void
1159	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1766	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1160	PPCODE:	1767	PPCODE:
1161	{	1768	{
1162	dREQ;	1769	dREQ;
1163		1770
1164	req->type = EIO_MKNOD;	1771	req->type = EIO_MKNOD;
1165	req->sv1 = newSVsv (pathname);
1166	req->ptr1 = SvPVbyte_nolen (req->sv1);
1167	req->int2 = (mode_t)mode;	1772	req->int2 = (mode_t)mode;
1168	req->offs = dev;	1773	req->offs = dev;
		1774	req_set_path1 (req, pathname);
1169		1775
1170	REQ_SEND;	1776	REQ_SEND;
1171	}	1777	}
1172		1778
1173	void	1779	void
1174	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1780	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1175	ALIAS:	1781	ALIAS:
1176	aio_mtouch = EIO_MTOUCH	1782	aio_mtouch = EIO_MTOUCH
1177	aio_msync = EIO_MSYNC	1783	aio_msync = EIO_MSYNC
1178	PROTOTYPE: $$$$;$
1179	PPCODE:	1784	PPCODE:
1180	{	1785	{
1181	STRLEN svlen;	1786	STRLEN svlen;
		1787	char *svptr = SvPVbyte (data, svlen);
1182	UV len = SvUV (length);	1788	UV len = SvUV (length);
1183	char *svptr = SvPVbyte (data, svlen);	1789
		1790	if (flags < 0)
		1791	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1184		1792
1185	if (offset < 0)	1793	if (offset < 0)
1186	offset += svlen;	1794	offset += svlen;
1187		1795
1188	if (offset < 0 || offset > svlen)	1796	if (offset < 0 || offset > svlen)
…		…
1193		1801
1194	{	1802	{
1195	dREQ;	1803	dREQ;
1196		1804
1197	req->type = ix;	1805	req->type = ix;
1198	req->size = len;
1199	req->sv2 = SvREFCNT_inc (data);	1806	req->sv2 = SvREFCNT_inc (data);
1200	req->ptr2 = (char *)svptr + offset;	1807	req->ptr2 = (char *)svptr + offset;
		1808	req->size = len;
1201	req->int1 = flags;	1809	req->int1 = flags;
1202		1810
1203	REQ_SEND;	1811	REQ_SEND;
1204	}	1812	}
1205	}	1813	}
1206		1814
1207	void	1815	void
		1816	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1817	PPCODE:
		1818	{
		1819	STRLEN svlen;
		1820	char *svptr = SvPVbyte (data, svlen);
		1821	UV len = SvUV (length);
		1822
		1823	if (offset < 0)
		1824	offset += svlen;
		1825
		1826	if (offset < 0 || offset > svlen)
		1827	croak ("offset outside of scalar");
		1828
		1829	if (!SvOK (length) || len + offset > svlen)
		1830	len = svlen - offset;
		1831
		1832	{
		1833	dREQ;
		1834
		1835	req->type = EIO_MLOCK;
		1836	req->sv2 = SvREFCNT_inc (data);
		1837	req->ptr2 = (char *)svptr + offset;
		1838	req->size = len;
		1839
		1840	REQ_SEND;
		1841	}
		1842	}
		1843
		1844	void
		1845	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1846	PPCODE:
		1847	{
		1848	dREQ;
		1849
		1850	req->type = EIO_MLOCKALL;
		1851	req->int1 = flags;
		1852
		1853	REQ_SEND;
		1854	}
		1855
		1856	void
		1857	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1858	PPCODE:
		1859	{
		1860	int fd = s_fileno_croak (fh, 0);
		1861	dREQ;
		1862
		1863	req->type = EIO_CUSTOM;
		1864	req->sv1 = newSVsv (fh);
		1865	req->int1 = fd;
		1866
		1867	req->feed = fiemap;
		1868	#if HAVE_FIEMAP
		1869	/* keep our fingers crossed that the next two types are 64 bit */
		1870	req->offs = start;
		1871	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1872	req->int2 = flags;
		1873	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1874	#endif
		1875
		1876	REQ_SEND;
		1877	}
		1878
		1879	void
		1880	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1881	PPCODE:
		1882	{
		1883	char *svptr = 0;
		1884
		1885	sv_clear_foreign (data);
		1886
		1887	if (length) /* known length, directly read into scalar */
		1888	{
		1889	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1890	svptr = sv_grow (data, length + 1);
		1891	else if (SvCUR (data) < length)
		1892	croak ("length outside of scalar, and cannot grow");
		1893	else
		1894	svptr = SvPVbyte_nolen (data);
		1895	}
		1896
		1897	{
		1898	dREQ;
		1899
		1900	req->type = EIO_SLURP;
		1901	req_set_path1 (req, pathname);
		1902	req->offs = offset;
		1903	req->size = length;
		1904	req->sv2 = SvREFCNT_inc (data);
		1905	req->ptr2 = svptr;
		1906
		1907	if (!SvREADONLY (data))
		1908	{
		1909	SvREADONLY_on (data);
		1910	req->flags |= FLAG_SV2_RO_OFF;
		1911	}
		1912
		1913	REQ_SEND;
		1914	}
		1915	}
		1916
		1917	void
1208	aio_busy (double delay, SV *callback=&PL_sv_undef)	1918	aio_busy (double delay, SV *callback = &PL_sv_undef)
1209	PPCODE:	1919	PPCODE:
1210	{	1920	{
1211	dREQ;	1921	dREQ;
1212		1922
1213	req->type = EIO_BUSY;	1923	req->type = EIO_BUSY;
…		…
1215		1925
1216	REQ_SEND;	1926	REQ_SEND;
1217	}	1927	}
1218		1928
1219	void	1929	void
1220	aio_group (SV *callback=&PL_sv_undef)	1930	aio_group (SV *callback = &PL_sv_undef)
1221	PROTOTYPE: ;$
1222	PPCODE:	1931	PPCODE:
1223	{	1932	{
1224	dREQ;	1933	dREQ;
1225		1934
1226	req->type = EIO_GROUP;	1935	req->type = EIO_GROUP;
1227		1936
		1937	PUTBACK;
1228	req_submit (req);	1938	req_submit (req);
		1939	SPAGAIN;
		1940
1229	XPUSHs (req_sv (req, aio_grp_stash));	1941	XPUSHs (req_sv (req, aio_grp_stash));
1230	}	1942	}
1231		1943
1232	void	1944	void
1233	aio_nop (SV *callback=&PL_sv_undef)	1945	aio_nop (SV *callback = &PL_sv_undef)
1234	ALIAS:	1946	ALIAS:
1235	aio_nop = EIO_NOP	1947	aio_nop = EIO_NOP
1236	aio_sync = EIO_SYNC	1948	aio_sync = EIO_SYNC
1237	PPCODE:	1949	PPCODE:
1238	{	1950	{
…		…
1242		1954
1243	REQ_SEND;	1955	REQ_SEND;
1244	}	1956	}
1245		1957
1246	int	1958	int
1247	aioreq_pri (int pri = 0)	1959	aioreq_pri (int pri = NO_INIT)
1248	PROTOTYPE: ;$
1249	CODE:	1960	CODE:
1250	RETVAL = next_pri;	1961	RETVAL = next_pri;
1251	if (items > 0)	1962	if (items > 0)
1252	{	1963	{
1253	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1964	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1265	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1976	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1266	next_pri = nice;	1977	next_pri = nice;
1267		1978
1268	void	1979	void
1269	flush ()	1980	flush ()
1270	PROTOTYPE:
1271	CODE:	1981	CODE:
1272	while (eio_nreqs ())	1982	while (eio_nreqs ())
1273	{	1983	{
1274	poll_wait ();	1984	poll_wait ();
1275	poll_cb ();	1985	poll_cb ();
1276	}	1986	}
1277		1987
1278	int	1988	int
1279	poll()	1989	poll ()
1280	PROTOTYPE:
1281	CODE:	1990	CODE:
1282	poll_wait ();	1991	poll_wait ();
1283	RETVAL = poll_cb ();	1992	RETVAL = poll_cb ();
1284	OUTPUT:	1993	OUTPUT:
1285	RETVAL	1994	RETVAL
1286		1995
1287	int	1996	int
1288	poll_fileno()	1997	poll_fileno ()
1289	PROTOTYPE:
1290	CODE:	1998	CODE:
1291	RETVAL = s_epipe_fd (&respipe);	1999	RETVAL = s_epipe_fd (&respipe);
1292	OUTPUT:	2000	OUTPUT:
1293	RETVAL	2001	RETVAL
1294		2002
1295	int	2003	int
1296	poll_cb(...)	2004	poll_cb (...)
1297	PROTOTYPE:	2005	PROTOTYPE:
1298	CODE:	2006	CODE:
1299	RETVAL = poll_cb ();	2007	RETVAL = poll_cb ();
1300	OUTPUT:	2008	OUTPUT:
1301	RETVAL	2009	RETVAL
1302		2010
1303	void	2011	void
1304	poll_wait()	2012	poll_wait ()
1305	PROTOTYPE:
1306	CODE:	2013	CODE:
1307	poll_wait ();	2014	poll_wait ();
1308		2015
1309	int	2016	int
1310	nreqs()	2017	nreqs ()
1311	PROTOTYPE:
1312	CODE:	2018	CODE:
1313	RETVAL = eio_nreqs ();	2019	RETVAL = eio_nreqs ();
1314	OUTPUT:	2020	OUTPUT:
1315	RETVAL	2021	RETVAL
1316		2022
1317	int	2023	int
1318	nready()	2024	nready ()
1319	PROTOTYPE:
1320	CODE:	2025	CODE:
1321	RETVAL = eio_nready ();	2026	RETVAL = eio_nready ();
1322	OUTPUT:	2027	OUTPUT:
1323	RETVAL	2028	RETVAL
1324		2029
1325	int	2030	int
1326	npending()	2031	npending ()
1327	PROTOTYPE:
1328	CODE:	2032	CODE:
1329	RETVAL = eio_npending ();	2033	RETVAL = eio_npending ();
1330	OUTPUT:	2034	OUTPUT:
1331	RETVAL	2035	RETVAL
1332		2036
1333	int	2037	int
1334	nthreads()	2038	nthreads ()
1335	PROTOTYPE:
1336	CODE:	2039	CODE:
1337	RETVAL = eio_nthreads ();	2040	RETVAL = eio_nthreads ();
1338	OUTPUT:	2041	OUTPUT:
1339	RETVAL	2042	RETVAL
1340		2043
1341	int	2044	int
1342	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	2045	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1343	PROTOTYPE: $$$$
1344	CODE:	2046	CODE:
1345	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1346	RETVAL = posix_fadvise (fh, offset, length, advice);	2047	RETVAL = posix_fadvise (fh, offset, length, advice);
1347	#else
1348	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1349	#endif
1350	OUTPUT:	2048	OUTPUT:
1351	RETVAL	2049	RETVAL
1352		2050
1353	ssize_t	2051	IV
1354	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	2052	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1355	PROTOTYPE: $$$$
1356	CODE:	2053	CODE:
1357	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2054	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1358	OUTPUT:	2055	OUTPUT:
1359	RETVAL	2056	RETVAL
1360		2057
1361	void	2058	void
1362	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2059	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1363	PROTOTYPE: $$$$$;$
1364	PPCODE:	2060	PPCODE:
1365	sv_unmagic (scalar, MMAP_MAGIC);	2061	sv_clear_foreign (scalar);
1366	{	2062	{
1367	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2063	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1368	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2064	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1369	if (addr == (void *)-1)	2065	if (addr == (void *)-1)
1370	XSRETURN_NO;	2066	XSRETURN_NO;
1371		2067
1372	/* we store the length in mg_obj, as namlen is I32 :/ */	2068	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1373	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1374	->mg_obj = (SV *)length;
1375		2069
1376	SvUPGRADE (scalar, SVt_PV); /* nop... */
1377	if (!(prot & PROT_WRITE))	2070	if (!(prot & PROT_WRITE))
1378	SvREADONLY_on (scalar);	2071	SvREADONLY_on (scalar);
1379		2072
1380	SvPVX (scalar) = (char *)addr;
1381	SvCUR_set (scalar, length);
1382	SvLEN_set (scalar, 0);
1383	SvPOK_only (scalar);
1384
1385	XSRETURN_YES;	2073	XSRETURN_YES;
1386	}	2074	}
1387		2075
1388	void	2076	void
1389	munmap (SV *scalar)	2077	munmap (SV *scalar)
1390	PROTOTYPE: $
1391	CODE:	2078	CODE:
1392	sv_unmagic (scalar, MMAP_MAGIC);	2079	sv_clear_foreign (scalar);
		2080
		2081	SV *
		2082	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2083	CODE:
		2084	{
		2085	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2086	void *new;
		2087
		2088	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2089	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2090
		2091	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2092
		2093	RETVAL = &PL_sv_no;
		2094
		2095	if (new != (void *)-1)
		2096	{
		2097	RETVAL = new == (void *)mg->mg_ptr
		2098	? newSVpvn ("0 but true", 10)
		2099	: &PL_sv_yes;
		2100
		2101	mg->mg_ptr = (char *)new;
		2102	mg->mg_obj = (SV *)new_length;
		2103
		2104	SvPVX (scalar) = mg->mg_ptr;
		2105	SvCUR_set (scalar, new_length);
		2106	}
		2107	}
		2108	OUTPUT:
		2109	RETVAL
1393		2110
1394	int	2111	int
1395	mlockall (int flags)	2112	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1396	PROTOTYPE: $	2113	ALIAS:
		2114	mprotect = 1
1397	CODE:	2115	CODE:
		2116	{
		2117	STRLEN svlen;
		2118	void *addr = SvPVbyte (scalar, svlen);
		2119	STRLEN len = SvUV (length);
		2120
		2121	if (offset < 0)
		2122	offset += svlen;
		2123
		2124	if (offset < 0 || offset > svlen)
		2125	croak ("offset outside of scalar");
		2126
		2127	if (!SvOK (length) || len + offset > svlen)
		2128	len = svlen - offset;
		2129
		2130	addr = (void *)(((intptr_t)addr) + offset);
		2131	eio_page_align (&addr, &len);
		2132
		2133	switch (ix)
		2134	{
		2135	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		2136	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		2137	}
		2138	}
		2139	OUTPUT:
		2140	RETVAL
		2141
		2142	int
		2143	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		2144	CODE:
		2145	{
		2146	STRLEN svlen;
		2147	void *addr = SvPVbyte (scalar, svlen);
		2148	size_t len = SvUV (length);
		2149
		2150	if (offset < 0)
		2151	offset += svlen;
		2152
		2153	if (offset < 0 || offset > svlen)
		2154	croak ("offset outside of scalar");
		2155
		2156	if (!SvOK (length) || len + offset > svlen)
		2157	len = svlen - offset;
		2158
		2159	addr = (void *)(((intptr_t)addr) + offset);
		2160	eio_page_align (&addr, &len);
1398	#if _POSIX_MEMLOCK	2161	#if _POSIX_MEMLOCK_RANGE
1399	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	2162	RETVAL = munlock (addr, len);
1400	extern int mallopt (int, int);
1401	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1402	#endif
1403	mlockall (flags);
1404	#else	2163	#else
1405	RETVAL = -1;	2164	RETVAL = EIO_ENOSYS ();
1406	errno = ENOSYS;
1407	#endif	2165	#endif
		2166	}
1408	OUTPUT:	2167	OUTPUT:
1409	RETVAL	2168	RETVAL
1410		2169
1411	int	2170	int
1412	munlockall ()	2171	munlockall ()
1413	PROTOTYPE:
1414	CODE:	2172	CODE:
1415	#if _POSIX_MEMLOCK	2173	#if _POSIX_MEMLOCK
1416	munlockall ();	2174	munlockall ();
1417	#else	2175	#else
1418	RETVAL = -1;	2176	RETVAL = EIO_ENOSYS ();
1419	errno = ENOSYS;
1420	#endif	2177	#endif
1421	OUTPUT:	2178	OUTPUT:
1422	RETVAL	2179	RETVAL
		2180
		2181	int
		2182	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2183	CODE:
		2184	{
		2185	#if HAVE_LINUX_SPLICE
		2186	loff_t off_in_, off_out_;
		2187	RETVAL = splice (
		2188	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2189	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2190	length, flags
		2191	);
		2192	#else
		2193	RETVAL = EIO_ENOSYS ();
		2194	#endif
		2195	}
		2196	OUTPUT:
		2197	RETVAL
		2198
		2199	int
		2200	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2201	CODE:
		2202	#if HAVE_LINUX_SPLICE
		2203	RETVAL = tee (rfh, wfh, length, flags);
		2204	#else
		2205	RETVAL = EIO_ENOSYS ();
		2206	#endif
		2207	OUTPUT:
		2208	RETVAL
		2209
		2210	int
		2211	pipesize (aio_rfd rfh, int new_size = -1)
		2212	PROTOTYPE: $;$
		2213	CODE:
		2214	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2215	if (new_size >= 0)
		2216	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2217	else
		2218	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2219	#else
		2220	errno = ENOSYS;
		2221	RETVAL = -1;
		2222	#endif
		2223	OUTPUT:
		2224	RETVAL
		2225
		2226	void
		2227	pipe2 (int flags = 0)
		2228	PROTOTYPE: ;$
		2229	PPCODE:
		2230	{
		2231	int fd[2];
		2232	int res;
		2233
		2234	if (flags)
		2235	#if HAVE_PIPE2
		2236	res = pipe2 (fd, flags);
		2237	#else
		2238	res = (errno = ENOSYS, -1);
		2239	#endif
		2240	else
		2241	res = pipe (fd);
		2242
		2243	if (!res)
		2244	{
		2245	EXTEND (SP, 2);
		2246	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2247	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2248	}
		2249	}
		2250
		2251	void
		2252	eventfd (unsigned int initval = 0, int flags = 0)
		2253	PPCODE:
		2254	{
		2255	int fd;
		2256	#if HAVE_EVENTFD
		2257	fd = eventfd (initval, flags);
		2258	#else
		2259	fd = (errno = ENOSYS, -1);
		2260	#endif
		2261
		2262	XPUSHs (newmortalFH (fd, O_RDWR));
		2263	}
		2264
		2265	void
		2266	timerfd_create (int clockid, int flags = 0)
		2267	PPCODE:
		2268	{
		2269	int fd;
		2270	#if HAVE_TIMERFD
		2271	fd = timerfd_create (clockid, flags);
		2272	#else
		2273	fd = (errno = ENOSYS, -1);
		2274	#endif
		2275
		2276	XPUSHs (newmortalFH (fd, O_RDWR));
		2277	}
		2278
		2279	void
		2280	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2281	PPCODE:
		2282	{
		2283	int fd = s_fileno_croak (fh, 0);
		2284	#if HAVE_TIMERFD
		2285	int res;
		2286	struct itimerspec its, ots;
		2287
		2288	ts_set (&its.it_interval, interval);
		2289	ts_set (&its.it_value , value);
		2290	res = timerfd_settime (fd, flags, &its, &ots);
		2291
		2292	if (!res)
		2293	{
		2294	EXTEND (SP, 2);
		2295	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2296	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2297	}
		2298	#else
		2299	errno = ENOSYS;
		2300	#endif
		2301	}
		2302
		2303	void
		2304	timerfd_gettime (SV *fh)
		2305	PPCODE:
		2306	{
		2307	int fd = s_fileno_croak (fh, 0);
		2308	#if HAVE_TIMERFD
		2309	int res;
		2310	struct itimerspec ots;
		2311	res = timerfd_gettime (fd, &ots);
		2312
		2313	if (!res)
		2314	{
		2315	EXTEND (SP, 2);
		2316	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2317	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2318	}
		2319	#else
		2320	errno = ENOSYS;
		2321	#endif
		2322	}
		2323
		2324	UV
		2325	get_fdlimit ()
		2326	CODE:
		2327	#if HAVE_RLIMITS
		2328	struct rlimit rl;
		2329	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2330	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2331	#endif
		2332	XSRETURN_UNDEF;
		2333	OUTPUT:
		2334	RETVAL
		2335
		2336	void
		2337	min_fdlimit (UV limit = 0x7fffffffU)
		2338	CODE:
		2339	{
		2340	#if HAVE_RLIMITS
		2341	struct rlimit rl;
		2342	rlim_t orig_rlim_max;
		2343	UV bit;
		2344
		2345	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2346	goto fail;
		2347
		2348	if (rl.rlim_cur == RLIM_INFINITY)
		2349	XSRETURN_YES;
		2350
		2351	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2352
		2353	if (rl.rlim_cur < limit)
		2354	{
		2355	rl.rlim_cur = limit;
		2356
		2357	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2358	rl.rlim_max = rl.rlim_cur;
		2359	}
		2360
		2361	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2362	XSRETURN_YES;
		2363
		2364	if (errno == EPERM)
		2365	{
		2366	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2367	/* our limit overflows a system-wide limit */
		2368	/* try an adaptive algorithm, but do not lower the hardlimit */
		2369	rl.rlim_max = 0;
		2370	for (bit = 0x40000000U; bit; bit >>= 1)
		2371	{
		2372	rl.rlim_max |= bit;
		2373	rl.rlim_cur = rl.rlim_max;
		2374
		2375	/* nevr decrease the hard limit */
		2376	if (rl.rlim_max < orig_rlim_max)
		2377	break;
		2378
		2379	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2380	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2381	}
		2382
		2383	/* now, raise the soft limit to the max permitted */
		2384	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2385	{
		2386	rl.rlim_cur = rl.rlim_max;
		2387	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2388	errno = EPERM;
		2389	}
		2390	}
		2391	#endif
		2392	fail:
		2393	XSRETURN_UNDEF;
		2394	}
1423		2395
1424	void _on_next_submit (SV *cb)	2396	void _on_next_submit (SV *cb)
1425	CODE:	2397	CODE:
1426	SvREFCNT_dec (on_next_submit);	2398	SvREFCNT_dec (on_next_submit);
1427	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2399	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1428		2400
1429	PROTOTYPES: DISABLE	2401	PROTOTYPES: DISABLE
1430		2402
		2403	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2404
		2405	BOOT:
		2406	{
		2407	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2408	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2409	}
		2410
		2411	void
		2412	DESTROY (SV *self)
		2413	CODE:
		2414	{
		2415	aio_wd wd = SvAIO_WD (self);
		2416	#if HAVE_AT
		2417	{
		2418	SV *callback = &PL_sv_undef;
		2419	dREQ; /* clobbers next_pri :/ */
		2420	next_pri = req->pri; /* restore next_pri */
		2421	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2422	req->type = EIO_WD_CLOSE;
		2423	req->wd = wd;
		2424	REQ_SEND;
		2425	}
		2426	#else
		2427	eio_wd_close_sync (wd);
		2428	#endif
		2429	}
		2430
1431	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2431	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1432		2432
1433	void	2433	void
1434	cancel (aio_req_ornot req)	2434	cancel (aio_req_ornot req)
1435	CODE:	2435	CODE:
1436	eio_cancel (req);	2436	eio_cancel (req);
1437		2437
1438	void	2438	void
1439	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2439	cb (aio_req_ornot req, SV *callback = NO_INIT)
1440	PPCODE:	2440	PPCODE:
1441	{	2441	{
1442	if (GIMME_V != G_VOID)	2442	if (GIMME_V != G_VOID)
1443	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2443	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1444		2444
1445	if (items > 1)	2445	if (items > 1)
1446	{	2446	{
1447	SV *cb_cv =get_cb (callback);	2447	SV *cb_cv = get_cb (callback);
1448		2448
1449	SvREFCNT_dec (req->callback);	2449	SvREFCNT_dec (req->callback);
1450	req->callback = SvREFCNT_inc (cb_cv);	2450	req->callback = SvREFCNT_inc (cb_cv);
1451	}	2451	}
1452	}	2452	}
…		…
1509	limit (aio_req grp, int limit)	2509	limit (aio_req grp, int limit)
1510	CODE:	2510	CODE:
1511	eio_grp_limit (grp, limit);	2511	eio_grp_limit (grp, limit);
1512		2512
1513	void	2513	void
1514	feed (aio_req grp, SV *callback=&PL_sv_undef)	2514	feed (aio_req grp, SV *callback = &PL_sv_undef)
1515	CODE:	2515	CODE:
1516	{	2516	{
1517	SvREFCNT_dec (grp->sv2);	2517	SvREFCNT_dec (grp->sv2);
1518	grp->sv2 = newSVsv (callback);	2518	grp->sv2 = newSVsv (callback);
1519	grp->feed = aio_grp_feed;	2519	grp->feed = aio_grp_feed;

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