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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.157 by root, Sat Jan 2 12:58:37 2010 UTC vs.
Revision 1.257 by root, Tue Jul 17 23:20:09 2018 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
8
9	#include "schmorp.h"
10		8
11	#include <stddef.h>	9	#include <stddef.h>
12	#include <stdlib.h>	10	#include <stdlib.h>
13	#include <errno.h>	11	#include <errno.h>
14	#include <sys/types.h>	12	#include <sys/types.h>
15	#include <sys/stat.h>	13	#include <sys/stat.h>
16	#include <limits.h>	14	#include <limits.h>
17	#include <fcntl.h>	15	#include <fcntl.h>
18	#include <sched.h>	16	#include <sched.h>
19		17
		18	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		19	# include <sys/mman.h>
		20	#endif
		21
		22	/* the incompetent fool that created musl keeps __linux__, refuses
		23	* to implement any linux standard apis, and also has no way to test
		24	* for his broken iplementation. don't complain to me if this fails
		25	* for you.
		26	*/
		27	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		28	# include <linux/fs.h>
		29	# ifdef FS_IOC_FIEMAP
		30	# include <linux/types.h>
		31	# include <linux/fiemap.h>
		32	# define HAVE_FIEMAP 1
		33	# endif
		34	#endif
		35
20	/* perl namespace pollution */	36	/* perl namespace pollution */
21	#undef VERSION	37	#undef VERSION
22
23	#ifdef _WIN32
24
25	# define EIO_STRUCT_DIRENT Direntry_t
26	# undef malloc
27	# undef free
28
29	// perl overrides all those nice win32 functions
30	# undef open
31	# undef read
32	# undef write
33	# undef send
34	# undef recv
35	# undef stat
36	# undef fstat
37	# define lstat stat
38	# undef truncate
39	# undef ftruncate
40	# undef open
41	# undef close
42	# undef unlink
43	# undef rmdir
44	# undef rename
45	# undef lseek
46
47	# define chown(a,b,c) (errno = ENOSYS, -1)
48	# define fchown(a,b,c) (errno = ENOSYS, -1)
49	# define fchmod(a,b) (errno = ENOSYS, -1)
50	# define symlink(a,b) (errno = ENOSYS, -1)
51	# define readlink(a,b,c) (errno = ENOSYS, -1)
52	# define mknod(a,b,c) (errno = ENOSYS, -1)
53	# define truncate(a,b) (errno = ENOSYS, -1)
54	# define ftruncate(fd,o) chsize ((fd), (o))
55	# define fsync(fd) _commit (fd)
56	# define opendir(fd) (errno = ENOSYS, 0)
57	# define readdir(fd) (errno = ENOSYS, -1)
58	# define closedir(fd) (errno = ENOSYS, -1)
59	# define mkdir(a,b) mkdir (a)
60
61	#else
62
63	# include <sys/time.h>
64	# include <sys/select.h>
65	# include <unistd.h>
66	# include <utime.h>
67	# include <signal.h>
68	# define EIO_STRUCT_DIRENT struct dirent
69
70	#endif
71		38
72	/* perl stupidly overrides readdir and maybe others */	39	/* perl stupidly overrides readdir and maybe others */
73	/* with thread-unsafe versions, imagine that :( */	40	/* with thread-unsafe versions, imagine that :( */
74	#undef readdir	41	#undef readdir
75	#undef opendir	42	#undef opendir
76	#undef closedir	43	#undef closedir
77		44
		45	#ifdef _WIN32
		46
		47	// perl overrides all those nice libc functions
		48
		49	#undef malloc
		50	#undef free
		51	#undef open
		52	#undef read
		53	#undef write
		54	#undef send
		55	#undef recv
		56	#undef stat
		57	#undef lstat
		58	#undef fstat
		59	#undef truncate
		60	#undef ftruncate
		61	#undef open
		62	#undef link
		63	#undef close
		64	#undef unlink
		65	#undef mkdir
		66	#undef rmdir
		67	#undef rename
		68	#undef lseek
		69	#undef opendir
		70	#undef readdir
		71	#undef closedir
		72	#undef chmod
		73	#undef fchmod
		74	#undef dup
		75	#undef dup2
		76	#undef abort
		77	#undef pipe
		78
		79	#define EIO_STRUCT_STAT struct _stati64
78	#define EIO_STRUCT_STAT Stat_t	80	#define EIO_STRUCT_STATI64
79		81
80	/* use NV for 32 bit perls as it allows larger offsets */
81	#if IVSIZE >= 8
82	# define VAL64 IV
83	# define SvVAL64 SvIV
84	# define newSVval64 newSViv
85	#else	82	#else
86	# define VAL64 NV	83
87	# define SvVAL64 SvNV	84	#include <sys/time.h>
88	# define newSVval64 newSVnv	85	#include <sys/select.h>
		86	#include <unistd.h>
		87	#include <utime.h>
		88	#include <signal.h>
		89
		90	#define EIO_STRUCT_STAT Stat_t
		91
89	#endif	92	#endif
90		93
91	/*****************************************************************************/	94	/*****************************************************************************/
92		95
93	#if __GNUC__ >= 3	96	#if __GNUC__ >= 3
…		…
99	#define expect_false(expr) expect ((expr) != 0, 0)	102	#define expect_false(expr) expect ((expr) != 0, 0)
100	#define expect_true(expr) expect ((expr) != 0, 1)	103	#define expect_true(expr) expect ((expr) != 0, 1)
101		104
102	/*****************************************************************************/	105	/*****************************************************************************/
103		106
		107	#include "libeio/config.h"
		108
		109	#include "schmorp.h"
		110
		111	#if HAVE_EVENTFD
		112	# include <sys/eventfd.h>
		113	#endif
		114
		115	#if HAVE_TIMERFD
		116	# include <sys/timerfd.h>
		117	#endif
		118
		119	#if HAVE_RLIMITS
		120	#include <sys/time.h>
		121	#include <sys/resource.h>
		122	#endif
		123
104	typedef SV SV8; /* byte-sv, used for argument-checking */	124	typedef SV SV8; /* byte-sv, used for argument-checking */
105	typedef int aio_rfd; /* read file desriptor */	125	typedef int aio_rfd; /* read file desriptor */
106	typedef int aio_wfd; /* write file descriptor */	126	typedef int aio_wfd; /* write file descriptor */
107		127
108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	128	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
109		129
110	#define EIO_REQ_MEMBERS \	130	#define EIO_REQ_MEMBERS \
111	SV *callback; \	131	SV *callback; \
112	SV *sv1, *sv2; \	132	SV *sv1, *sv2; \
		133	SV *sv3, *sv4; \
113	STRLEN stroffset; \	134	STRLEN stroffset; \
114	SV *self;	135	SV *self;
115		136
116	#define EIO_NO_WRAPPERS 1	137	#define EIO_NO_WRAPPERS 1
117		138
118	#include "libeio/eio.h"	139	#include "libeio/eio.h"
119
120	#ifndef POSIX_FADV_NORMAL
121	# define POSIX_FADV_NORMAL 0
122	# define NO_FADVISE 1
123	#endif
124
125	#ifndef POSIX_FADV_SEQUENTIAL
126	# define POSIX_FADV_SEQUENTIAL 0
127	#endif
128
129	#ifndef POSIX_FADV_RANDOM
130	# define POSIX_FADV_RANDOM 0
131	#endif
132
133	#ifndef POSIX_FADV_NOREUSE
134	# define POSIX_FADV_NOREUSE 0
135	#endif
136
137	#ifndef POSIX_FADV_WILLNEED
138	# define POSIX_FADV_WILLNEED 0
139	#endif
140
141	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0
143	#endif
144		140
145	static int req_invoke (eio_req *req);	141	static int req_invoke (eio_req *req);
146	#define EIO_FINISH(req) req_invoke (req)	142	#define EIO_FINISH(req) req_invoke (req)
147	static void req_destroy (eio_req *grp);	143	static void req_destroy (eio_req *grp);
148	#define EIO_DESTROY(req) req_destroy (req)	144	#define EIO_DESTROY(req) req_destroy (req)
149		145
		146	#include "libeio/eio.c"
		147
		148	#if !HAVE_POSIX_FADVISE
		149	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		150	#endif
		151
		152	#if !HAVE_POSIX_MADVISE
		153	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		154	#endif
		155
		156	#ifndef MAP_ANONYMOUS
		157	# ifdef MAP_ANON
		158	# define MAP_ANONYMOUS MAP_ANON
		159	# else
		160	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		161	# endif
		162	#endif
		163
		164	/* defines all sorts of constants to 0 unless they are already defined */
		165	/* also provides const_iv_ and const_niv_ macros for them */
		166	#include "def0.h"
		167
		168	#ifndef makedev
		169	# define makedev(maj,min) (((maj) << 8) | (min))
		170	#endif
		171	#ifndef major
		172	# define major(dev) ((dev) >> 8)
		173	#endif
		174	#ifndef minor
		175	# define minor(dev) ((dev) & 0xff)
		176	#endif
		177
		178	#if PAGESIZE <= 0
		179	# define PAGESIZE sysconf (_SC_PAGESIZE)
		180	#endif
		181
		182	/*****************************************************************************/
		183
		184	#if !_POSIX_MAPPED_FILES
		185	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		186	# define munmap(addr,length) EIO_ENOSYS ()
		187	#endif
		188
		189	#if !_POSIX_MEMORY_PROTECTION
		190	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		191	#endif
		192
		193	#if !MREMAP_MAYMOVE
		194	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		195	#endif
		196
		197	#define FOREIGN_MAGIC PERL_MAGIC_ext
		198
		199	static int ecb_cold
		200	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		201	{
		202	int old_errno = errno;
		203	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		204	errno = old_errno;
		205
		206	mg->mg_obj = 0; /* just in case */
		207
		208	SvREADONLY_off (sv);
		209
		210	if (SvPVX (sv) != mg->mg_ptr)
		211	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		212
		213	SvCUR_set (sv, 0);
		214	SvPVX (sv) = 0;
		215	SvOK_off (sv);
		216
		217	return 0;
		218	}
		219
		220	static MGVTBL mmap_vtbl = {
		221	0, 0, 0, 0, mmap_free
		222	};
		223
		224	static int ecb_cold
		225	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		226	{
		227	free (mg->mg_ptr);
		228	mg->mg_obj = 0; /* just in case */
		229
		230	SvREADONLY_off (sv);
		231
		232	if (SvPVX (sv) != mg->mg_ptr)
		233	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		234
		235	SvCUR_set (sv, 0);
		236	SvPVX (sv) = 0;
		237	SvOK_off (sv);
		238
		239	return 0;
		240	}
		241
		242	static MGVTBL sysfree_vtbl = {
		243	0, 0, 0, 0, sysfree_free
		244	};
		245
		246	/*****************************************************************************/
		247
		248	/* helper: set scalar to foreign ptr with custom free */
		249	static void
		250	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		251	{
		252	sv_force_normal (sv);
		253
		254	/* we store the length in mg_obj, as namlen is I32 :/ */
		255	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		256	->mg_obj = (SV *)length;
		257
		258	SvUPGRADE (sv, SVt_PV); /* nop... */
		259
		260	if (SvLEN (sv))
		261	Safefree (SvPVX (sv));
		262
		263	SvPVX (sv) = (char *)addr;
		264	SvCUR_set (sv, length);
		265	SvLEN_set (sv, 0);
		266	SvPOK_only (sv);
		267	}
		268
		269	static void
		270	sv_clear_foreign (SV *sv)
		271	{
		272	/* todo: iterate over magic and only free ours, but of course */
		273	/* the perl5porters will call that (correct) behaviour buggy */
		274	sv_unmagic (sv, FOREIGN_MAGIC);
		275	}
		276
		277	/*****************************************************************************/
		278
		279	static void
		280	fiemap (eio_req *req)
		281	{
		282	req->result = -1;
		283
		284	#if HAVE_FIEMAP
		285	/* assume some c99 */
		286	struct fiemap *fiemap = 0;
		287	size_t end_offset;
		288	int count = req->int3;
		289
		290	req->flags |= EIO_FLAG_PTR1_FREE;
		291
		292	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		293	/* increase in 3.5kb steps */
		294	if (count < 0)
		295	count = 8;
		296
		297	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		298	errno = ENOMEM;
		299	if (!fiemap)
		300	return;
		301
		302	req->ptr1 = fiemap;
		303
		304	fiemap->fm_start = req->offs;
		305	fiemap->fm_length = req->size;
		306	fiemap->fm_flags = req->int2;
		307	fiemap->fm_extent_count = count;
		308
		309	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		310	return;
		311
		312	if (req->int3 >= 0 /* not autosizing */
		313	|| !fiemap->fm_mapped_extents /* no more extents */
		314	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		315	goto done;
		316
		317	/* else we have to loop -
		318	* it would be tempting (actually I tried that first) to just query the
		319	* number of extents needed, but linux often feels like not returning all
		320	* extents, without telling us it left any out. this complicates
		321	* this quite a bit.
		322	*/
		323
		324	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		325
		326	for (;;)
		327	{
		328	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		329	char scratch[3072];
		330	struct fiemap *incmap = (struct fiemap *)scratch;
		331
		332	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		333	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		334	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		335	incmap->fm_flags = fiemap->fm_flags;
		336	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		337
		338	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		339	return;
		340
		341	if (!incmap->fm_mapped_extents)
		342	goto done;
		343
		344	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		345	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		346	errno = ENOMEM;
		347	if (!fiemap)
		348	return;
		349
		350	req->ptr1 = fiemap;
		351
		352	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		353	{
		354	struct fiemap_extent *e = incmap->fm_extents + count;
		355
		356	if (e->fe_logical + e->fe_length >= end_offset)
		357	goto done;
		358
		359	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		360
		361	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		362	goto done;
		363
		364	}
		365	}
		366
		367	done:
		368	req->result = 0;
		369
		370	#else
		371	errno = ENOSYS;
		372	#endif
		373	}
		374
		375	/*****************************************************************************/
		376
150	enum {	377	enum {
151	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	378	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
152	};	379	};
153		380
154	#include "libeio/eio.c"
155
156	typedef eio_req *aio_req;	381	typedef eio_req *aio_req;
157	typedef eio_req *aio_req_ornot;	382	typedef eio_req *aio_req_ornot;
		383	typedef eio_wd aio_wd;
158		384
159	static SV *on_next_submit;	385	static SV *on_next_submit;
160	static int next_pri = EIO_PRI_DEFAULT;	386	static int next_pri = EIO_PRI_DEFAULT;
161	static int max_outstanding;	387	static int max_outstanding;
162		388
163	static s_epipe respipe;	389	static s_epipe respipe;
164		390
165	static void req_destroy (aio_req req);	391	static void req_destroy (aio_req req);
166	static void req_cancel (aio_req req);	392	static void req_cancel (aio_req req);
167		393
168	static void want_poll (void)	394	static void
		395	want_poll (void)
169	{	396	{
170	/* write a dummy byte to the pipe so fh becomes ready */	397	/* write a dummy byte to the pipe so fh becomes ready */
171	s_epipe_signal (&respipe);	398	s_epipe_signal (&respipe);
172	}	399	}
173		400
174	static void done_poll (void)	401	static void
		402	done_poll (void)
175	{	403	{
176	/* read any signals sent by the worker threads */	404	/* read any signals sent by the worker threads */
177	s_epipe_drain (&respipe);	405	s_epipe_drain (&respipe);
178	}	406	}
179		407
180	/* must be called at most once */	408	/* must be called at most once */
		409	static SV *
181	static SV *req_sv (aio_req req, HV *stash)	410	req_sv (aio_req req, HV *stash)
182	{	411	{
183	if (!req->self)	412	if (!req->self)
184	{	413	{
185	req->self = (SV *)newHV ();	414	req->self = (SV *)newHV ();
186	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	415	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
187	}	416	}
188		417
189	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	418	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
190	}	419	}
191		420
192	static aio_req SvAIO_REQ (SV *sv)	421	static SV *
		422	newSVaio_wd (aio_wd wd)
		423	{
		424	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		425	}
		426
		427	static aio_req
		428	SvAIO_REQ (SV *sv)
193	{	429	{
194	MAGIC *mg;	430	MAGIC *mg;
195		431
196	if (!SvROK (sv)	432	if (!SvROK (sv)
		433	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
197	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	434	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
198	&& SvSTASH (SvRV (sv)) != aio_req_stash	435	&& SvSTASH (SvRV (sv)) != aio_req_stash
199	&& !sv_derived_from (sv, "IO::AIO::REQ")))	436	&& !sv_derived_from (sv, "IO::AIO::REQ")))
200	croak ("object of class IO::AIO::REQ expected");	437	croak ("object of class IO::AIO::REQ expected");
201		438
202	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	439	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
203		440
204	return mg ? (aio_req)mg->mg_ptr : 0;	441	return mg ? (aio_req)mg->mg_ptr : 0;
205	}	442	}
206		443
		444	static aio_wd
		445	SvAIO_WD (SV *sv)
		446	{
		447	if (!SvROK (sv)
		448	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		449	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		450	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		451
		452	return (aio_wd)(long)SvIVX (SvRV (sv));
		453	}
		454
		455	static SV *
		456	newmortalFH (int fd, int flags)
		457	{
		458	if (fd < 0)
		459	return &PL_sv_undef;
		460
		461	GV *gv = (GV *)sv_newmortal ();
		462	char sym[64];
		463	int symlen;
		464
		465	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		466	gv_init (gv, aio_stash, sym, symlen, 0);
		467
		468	symlen = snprintf (
		469	sym,
		470	sizeof (sym),
		471	"%s&=%d",
		472	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		473	fd
		474	);
		475
		476	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		477	? (SV *)gv : &PL_sv_undef;
		478	}
		479
		480	static void
207	static void aio_grp_feed (aio_req grp)	481	aio_grp_feed (aio_req grp)
208	{	482	{
209	if (grp->sv2 && SvOK (grp->sv2))	483	if (grp->sv2 && SvOK (grp->sv2))
210	{	484	{
211	dSP;	485	dSP;
212		486
…		…
220	FREETMPS;	494	FREETMPS;
221	LEAVE;	495	LEAVE;
222	}	496	}
223	}	497	}
224		498
		499	static void
225	static void req_submit (eio_req *req)	500	req_submit (eio_req *req)
226	{	501	{
227	eio_submit (req);	502	eio_submit (req);
228		503
229	if (expect_false (on_next_submit))	504	if (expect_false (on_next_submit))
230	{	505	{
…		…
237	PUTBACK;	512	PUTBACK;
238	call_sv (cb, G_DISCARD | G_EVAL);	513	call_sv (cb, G_DISCARD | G_EVAL);
239	}	514	}
240	}	515	}
241		516
		517	static int
242	static int req_invoke (eio_req *req)	518	req_invoke (eio_req *req)
243	{	519	{
244	dSP;
245
246	if (req->flags & FLAG_SV2_RO_OFF)	520	if (req->flags & FLAG_SV2_RO_OFF)
247	SvREADONLY_off (req->sv2);	521	SvREADONLY_off (req->sv2);
248		522
249	if (!EIO_CANCELLED (req) && req->callback)	523	if (!EIO_CANCELLED (req) && req->callback)
250	{	524	{
		525	dSP;
		526	static SV *sv_result_cache; /* caches the result integer SV */
		527	SV *sv_result;
		528
251	ENTER;	529	ENTER;
252	SAVETMPS;	530	SAVETMPS;
253	PUSHMARK (SP);	531	PUSHMARK (SP);
254	EXTEND (SP, 1);	532	EXTEND (SP, 1);
255		533
		534	/* do not recreate the result IV from scratch each time */
		535	if (expect_true (sv_result_cache))
		536	{
		537	sv_result = sv_result_cache; sv_result_cache = 0;
		538	SvIV_set (sv_result, req->result);
		539	SvIOK_only (sv_result);
		540	}
		541	else
		542	{
		543	sv_result = newSViv (req->result);
		544	SvREADONLY_on (sv_result);
		545	}
		546
256	switch (req->type)	547	switch (req->type)
257	{	548	{
		549	case EIO_WD_OPEN:
		550	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		551	break;
		552
258	case EIO_READDIR:	553	case EIO_READDIR:
259	{	554	{
260	SV *rv = &PL_sv_undef;	555	SV *rv = &PL_sv_undef;
261		556
262	if (req->result >= 0)	557	if (req->result >= 0)
…		…
315	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	610	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
316	}	611	}
317	break;	612	break;
318		613
319	case EIO_OPEN:	614	case EIO_OPEN:
		615	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
		616	break;
		617
		618	case EIO_STATVFS:
		619	case EIO_FSTATVFS:
320	{	620	{
321	/* convert fd to fh */
322	SV *fh = &PL_sv_undef;	621	SV *rv = &PL_sv_undef;
323		622
		623	#ifndef _WIN32
324	if (req->result >= 0)	624	if (req->result >= 0)
325	{	625	{
		626	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
326	GV *gv = (GV *)sv_newmortal ();	627	HV *hv = newHV ();
327	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	628	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
328	char sym [64];	629	* chooses to make it a struct.
329	int symlen;
330		630	*/
331	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);	631	unsigned long fsid = 0;
332	gv_init (gv, aio_stash, sym, symlen, 0);	632	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
333		633
334	symlen = snprintf (	634	rv = sv_2mortal (newRV_noinc ((SV *)hv));
335	sym,
336	sizeof (sym),
337	"%s&=%d",
338	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
339	(int)req->result
340	);
341		635
342	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	636	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
343	fh = (SV *)gv;	637	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		638	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		639	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		640	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		641	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		642	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		643	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		644	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		645	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		646	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
344	}	647	}
		648	#endif
345		649
346	PUSHs (fh);	650	PUSHs (rv);
347	}	651	}
		652
348	break;	653	break;
349		654
350	case EIO_GROUP:	655	case EIO_GROUP:
351	req->int1 = 2; /* mark group as finished */	656	req->int1 = 2; /* mark group as finished */
352		657
…		…
364	case EIO_NOP:	669	case EIO_NOP:
365	case EIO_BUSY:	670	case EIO_BUSY:
366	break;	671	break;
367		672
368	case EIO_READLINK:	673	case EIO_READLINK:
		674	case EIO_REALPATH:
369	if (req->result > 0)	675	if (req->result > 0)
370	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	676	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
371	break;	677	break;
372		678
373	case EIO_STAT:	679	case EIO_STAT:
374	case EIO_LSTAT:	680	case EIO_LSTAT:
375	case EIO_FSTAT:	681	case EIO_FSTAT:
376	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	682	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		683
377	PL_laststatval = req->result;	684	if (!(PL_laststatval = req->result))
		685	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
378	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	686	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
379	PUSHs (sv_2mortal (newSViv (req->result)));	687
		688	PUSHs (sv_result);
		689	break;
		690
		691	case EIO_SEEK:
		692	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
380	break;	693	break;
381		694
382	case EIO_READ:	695	case EIO_READ:
383	{	696	{
384	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	697	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
385	*SvEND (req->sv2) = 0;	698	*SvEND (req->sv2) = 0;
386	SvPOK_only (req->sv2);	699	SvPOK_only (req->sv2);
387	SvSETMAGIC (req->sv2);	700	SvSETMAGIC (req->sv2);
388	PUSHs (sv_2mortal (newSViv (req->result)));	701	PUSHs (sv_result);
389	}	702	}
390	break;	703	break;
391		704
392	case EIO_DUP2:	705	case EIO_SLURP:
		706	{
		707	if (req->result >= 0)
		708	{
		709	/* if length was originally not known, we steal the malloc'ed memory */
		710	if (req->flags & EIO_FLAG_PTR2_FREE)
		711	{
		712	req->flags &= ~EIO_FLAG_PTR2_FREE;
		713	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		714	}
		715	else
		716	{
		717	SvCUR_set (req->sv2, req->result);
		718	*SvEND (req->sv2) = 0;
		719	SvPOK_only (req->sv2);
		720	}
		721
		722	SvSETMAGIC (req->sv2);
		723	}
		724
		725	PUSHs (sv_result);
		726	}
		727	break;
		728
		729	case EIO_CUSTOM:
		730	if (req->feed == fiemap)
		731	{
		732	#if HAVE_FIEMAP
		733	if (!req->result)
		734	{
		735	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		736
		737	if (fiemap->fm_extent_count)
		738	{
		739	AV *av = newAV ();
		740	int i;
		741
		742	while (fiemap->fm_mapped_extents)
		743	{
		744	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		745	AV *ext_av = newAV ();
		746
		747	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		748	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		749	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		750	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		751
		752	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		753	}
		754
		755	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		756	}
		757	else
		758	{
		759	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		760	PUSHs (sv_result);
		761	}
		762	}
		763	#endif
		764	}
		765	else
		766	PUSHs (sv_result);
		767	break;
		768
		769	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
393	if (req->result > 0)	770	if (req->result > 0)
394	req->result = 0;	771	SvIV_set (sv_result, 0);
395	/* FALLTHROUGH */	772	/* FALLTHROUGH */
396		773
397	default:	774	default:
398	PUSHs (sv_2mortal (newSViv (req->result)));	775	PUSHs (sv_result);
399	break;	776	break;
400	}	777	}
401		778
402	errno = req->errorno;	779	errno = req->errorno;
403		780
404	PUTBACK;	781	PUTBACK;
405	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	782	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
406	SPAGAIN;	783	SPAGAIN;
407		784
		785	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		786	SvREFCNT_dec (sv_result);
		787	else
		788	sv_result_cache = sv_result;
		789
408	FREETMPS;	790	FREETMPS;
409	LEAVE;	791	LEAVE;
410		792
411	PUTBACK;	793	PUTBACK;
412	}	794	}
413		795
414	return !!SvTRUE (ERRSV);	796	return !!SvTRUE (ERRSV);
415	}	797	}
416		798
		799	static void
417	static void req_destroy (aio_req req)	800	req_destroy (aio_req req)
418	{	801	{
419	if (req->self)	802	if (req->self)
420	{	803	{
421	sv_unmagic (req->self, PERL_MAGIC_ext);	804	sv_unmagic (req->self, PERL_MAGIC_ext);
422	SvREFCNT_dec (req->self);	805	SvREFCNT_dec (req->self);
423	}	806	}
424		807
425	SvREFCNT_dec (req->sv1);	808	SvREFCNT_dec (req->sv1);
426	SvREFCNT_dec (req->sv2);	809	SvREFCNT_dec (req->sv2);
		810	SvREFCNT_dec (req->sv3);
		811	SvREFCNT_dec (req->sv4);
427	SvREFCNT_dec (req->callback);	812	SvREFCNT_dec (req->callback);
428		813
429	Safefree (req);	814	free (req);
430	}	815	}
431		816
		817	static void
432	static void req_cancel_subs (aio_req grp)	818	req_cancel_subs (aio_req grp)
433	{	819	{
434	aio_req sub;
435
436	if (grp->type != EIO_GROUP)	820	if (grp->type != EIO_GROUP)
437	return;	821	return;
438		822
439	SvREFCNT_dec (grp->sv2);	823	SvREFCNT_dec (grp->sv2);
440	grp->sv2 = 0;	824	grp->sv2 = 0;
441		825
442	eio_grp_cancel (grp);	826	eio_grp_cancel (grp);
443	}	827	}
444		828
445	static void	829	static void ecb_cold
446	create_respipe (void)	830	create_respipe (void)
447	{	831	{
448	if (s_epipe_renew (&respipe))	832	if (s_epipe_renew (&respipe))
449	croak ("IO::AIO: unable to initialize result pipe");	833	croak ("IO::AIO: unable to initialize result pipe");
450	}	834	}
451		835
452	static void poll_wait (void)	836	static void
		837	poll_wait (void)
453	{	838	{
454	while (eio_nreqs ())	839	while (eio_nreqs ())
455	{	840	{
456	int size;	841	int size;
457		842
458	X_LOCK (reslock);	843	X_LOCK (EIO_POOL->reslock);
459	size = res_queue.size;	844	size = EIO_POOL->res_queue.size;
460	X_UNLOCK (reslock);	845	X_UNLOCK (EIO_POOL->reslock);
461		846
462	if (size)	847	if (size)
463	return;	848	return;
464		849
465	etp_maybe_start_thread ();	850	etp_maybe_start_thread (EIO_POOL);
466		851
467	s_epipe_wait (&respipe);	852	s_epipe_wait (&respipe);
468	}	853	}
469	}	854	}
470		855
471	static int poll_cb (void)	856	static int
		857	poll_cb (void)
472	{	858	{
473	for (;;)	859	for (;;)
474	{	860	{
475	int res = eio_poll ();	861	int res = eio_poll ();
476		862
…		…
482		868
483	poll_wait ();	869	poll_wait ();
484	}	870	}
485	}	871	}
486		872
487	static void atfork_child (void)	873	static void ecb_cold
		874	reinit (void)
488	{	875	{
489	create_respipe ();	876	create_respipe ();
		877
		878	if (eio_init (want_poll, done_poll) < 0)
		879	croak ("IO::AIO: unable to initialise eio library");
490	}	880	}
		881
		882	/*****************************************************************************/
491		883
492	static SV *	884	static SV *
493	get_cb (SV *cb_sv)	885	get_cb (SV *cb_sv)
494	{	886	{
495	SvGETMAGIC (cb_sv);	887	SvGETMAGIC (cb_sv);
496	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	888	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
497	}	889	}
498		890
		891	static aio_req ecb_noinline
		892	dreq (SV *callback)
		893	{
		894	SV *cb_cv;
		895	aio_req req;
		896	int req_pri = next_pri;
		897	next_pri = EIO_PRI_DEFAULT;
		898
		899	cb_cv = get_cb (callback);
		900
		901	req = calloc (sizeof (*req), 1);
		902	if (!req)
		903	croak ("out of memory during eio_req allocation");
		904
		905	req->callback = SvREFCNT_inc (cb_cv);
		906	req->pri = req_pri;
		907
		908	return req;
		909	}
		910
499	#define dREQ \	911	#define dREQ \
500	SV *cb_cv; \	912	aio_req req = dreq (callback); \
501	aio_req req; \
502	int req_pri = next_pri; \
503	next_pri = EIO_PRI_DEFAULT; \
504	\
505	cb_cv = get_cb (callback); \
506	\
507	Newz (0, req, 1, eio_req); \
508	if (!req) \
509	croak ("out of memory during eio_req allocation"); \
510	\
511	req->callback = SvREFCNT_inc (cb_cv); \
512	req->pri = req_pri
513		913
514	#define REQ_SEND \	914	#define REQ_SEND \
515	PUTBACK; \	915	PUTBACK; \
516	req_submit (req); \	916	req_submit (req); \
517	SPAGAIN; \	917	SPAGAIN; \
518	\	918	\
519	if (GIMME_V != G_VOID) \	919	if (GIMME_V != G_VOID) \
520	XPUSHs (req_sv (req, aio_req_stash));	920	XPUSHs (req_sv (req, aio_req_stash));
521		921
		922	ecb_inline void
		923	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		924	{
		925	if (expect_false (SvROK (path)))
		926	{
		927	SV *rv = SvRV (path);
		928	SV *wdob;
		929
		930	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		931	{
		932	path = AvARRAY (rv)[1];
		933	wdob = AvARRAY (rv)[0];
		934
		935	if (SvOK (wdob))
		936	{
		937	*wd = SvAIO_WD (wdob);
		938	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		939	}
		940	else
		941	*wd = EIO_INVALID_WD;
		942	}
		943	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		944	{
		945	*wd = (aio_wd)(long)SvIVX (rv);
		946	*wdsv = SvREFCNT_inc_NN (rv);
		947	*ptr = ".";
		948	return; /* path set to "." */
		949	}
		950	else
		951	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		952	}
		953
		954	*pathsv = newSVsv (path);
		955	*ptr = SvPVbyte_nolen (*pathsv);
		956	}
		957
		958	static void ecb_noinline
		959	req_set_path1 (aio_req req, SV *path)
		960	{
		961	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		962	}
		963
		964	static void ecb_noinline
		965	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		966	{
		967	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		968
		969	switch (SvTYPE (rv))
		970	{
		971	case SVt_PVIO:
		972	case SVt_PVLV:
		973	case SVt_PVGV:
		974	req->type = type_fh;
		975	req->sv1 = newSVsv (fh_or_path);
		976	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		977	break;
		978
		979	default:
		980	req->type = type_path;
		981	req_set_path1 (req, fh_or_path);
		982	break;
		983	}
		984	}
		985
		986	/*****************************************************************************/
		987
		988	static void
		989	ts_set (struct timespec *ts, NV value)
		990	{
		991	ts->tv_sec = value;
		992	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		993	}
		994
		995	static NV
		996	ts_get (const struct timespec *ts)
		997	{
		998	return ts->tv_sec + ts->tv_nsec * 1e-9;
		999	}
		1000
		1001	/*****************************************************************************/
		1002
		1003	XS(boot_IO__AIO) ecb_cold;
		1004
522	MODULE = IO::AIO PACKAGE = IO::AIO	1005	MODULE = IO::AIO PACKAGE = IO::AIO
523		1006
524	PROTOTYPES: ENABLE	1007	PROTOTYPES: ENABLE
525		1008
526	BOOT:	1009	BOOT:
527	{	1010	{
528	static const struct {	1011	static const struct {
529	const char *name;	1012	const char *name;
530	IV iv;	1013	IV iv;
531	} *civ, const_iv[] = {	1014	} *civ, const_iv[] = {
532	# define const_iv(name, value) { # name, (IV) value },	1015	# define const_niv(name, value) { # name, (IV) value },
		1016	# define const_iv(name) { # name, (IV) name },
533	# define const_eio(name) { # name, (IV) EIO_ ## name },	1017	# define const_eio(name) { # name, (IV) EIO_ ## name },
534	const_iv (EXDEV , EXDEV)	1018
		1019	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1020	/* the first block can be undef if missing */
535	const_iv (ENOSYS , ENOSYS)	1021	const_iv (ENOSYS)
536	const_iv (O_RDONLY, O_RDONLY)	1022	const_iv (EXDEV)
537	const_iv (O_WRONLY, O_WRONLY)	1023	const_iv (EBADR)
538	const_iv (O_CREAT , O_CREAT)	1024
539	const_iv (O_TRUNC , O_TRUNC)	1025	/* for lseek */
540	#ifndef _WIN32	1026	const_iv (SEEK_DATA)
541	const_iv (S_IFIFO , S_IFIFO)	1027	const_iv (SEEK_HOLE)
542	#endif	1028
543	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	1029	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
544	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	1030	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
545	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	1031	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
546	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	1032	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
547	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	1033	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
548	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	1034	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1035
		1036	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1037	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1038	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1039	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1040	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1041
		1042	/* the second block will be 0 when missing */
		1043	const_iv (O_RDONLY)
		1044	const_iv (O_WRONLY)
		1045	const_iv (O_RDWR)
		1046	const_iv (O_CREAT)
		1047	const_iv (O_TRUNC)
		1048	const_iv (O_EXCL)
		1049	const_iv (O_APPEND)
		1050
		1051	const_iv (O_ASYNC)
		1052	const_iv (O_DIRECT)
		1053	const_iv (O_NOATIME)
		1054
		1055	const_iv (O_CLOEXEC)
		1056	const_iv (O_NOCTTY)
		1057	const_iv (O_NOFOLLOW)
		1058	const_iv (O_NONBLOCK)
		1059	const_iv (O_EXEC)
		1060	const_iv (O_SEARCH)
		1061	const_iv (O_DIRECTORY)
		1062	const_iv (O_DSYNC)
		1063	const_iv (O_RSYNC)
		1064	const_iv (O_SYNC)
		1065	const_iv (O_PATH)
		1066	const_iv (O_TMPFILE)
		1067	const_iv (O_TTY_INIT)
		1068
		1069	const_iv (S_IFIFO)
		1070	const_iv (S_IFCHR)
		1071	const_iv (S_IFBLK)
		1072	const_iv (S_IFLNK)
		1073	const_iv (S_IFREG)
		1074	const_iv (S_IFDIR)
		1075	const_iv (S_IFWHT)
		1076	const_iv (S_IFSOCK)
		1077	const_iv (S_IFMT)
		1078
		1079	const_iv (ST_RDONLY)
		1080	const_iv (ST_NOSUID)
		1081	const_iv (ST_NODEV)
		1082	const_iv (ST_NOEXEC)
		1083	const_iv (ST_SYNCHRONOUS)
		1084	const_iv (ST_MANDLOCK)
		1085	const_iv (ST_WRITE)
		1086	const_iv (ST_APPEND)
		1087	const_iv (ST_IMMUTABLE)
		1088	const_iv (ST_NOATIME)
		1089	const_iv (ST_NODIRATIME)
		1090	const_iv (ST_RELATIME)
		1091
		1092	const_iv (PROT_NONE)
		1093	const_iv (PROT_EXEC)
		1094	const_iv (PROT_READ)
		1095	const_iv (PROT_WRITE)
		1096
		1097	const_iv (MAP_PRIVATE)
		1098	const_iv (MAP_SHARED)
		1099	const_iv (MAP_FIXED)
		1100	const_iv (MAP_ANONYMOUS)
		1101
		1102	/* linuxish */
		1103	const_iv (MAP_LOCKED)
		1104	const_iv (MAP_NORESERVE)
		1105	const_iv (MAP_POPULATE)
		1106	const_iv (MAP_NONBLOCK)
		1107	const_iv (MAP_GROWSDOWN)
		1108	const_iv (MAP_32BIT)
		1109	const_iv (MAP_HUGETLB)
		1110	const_iv (MAP_STACK)
		1111
		1112	const_iv (MREMAP_MAYMOVE)
		1113	const_iv (MREMAP_FIXED)
		1114
		1115	const_iv (F_DUPFD_CLOEXEC)
		1116
		1117	const_iv (F_OFD_GETLK)
		1118	const_iv (F_OFD_SETLK)
		1119	const_iv (F_OFD_GETLKW)
		1120
		1121	const_iv (FIFREEZE)
		1122	const_iv (FITHAW)
		1123	const_iv (FITRIM)
		1124	const_iv (FICLONE)
		1125	const_iv (FICLONERANGE)
		1126	const_iv (FIDEDUPERANGE)
		1127
		1128	const_iv (FS_IOC_GETFLAGS)
		1129	const_iv (FS_IOC_SETFLAGS)
		1130	const_iv (FS_IOC_GETVERSION)
		1131	const_iv (FS_IOC_SETVERSION)
		1132	const_iv (FS_IOC_FIEMAP)
		1133	const_iv (FS_IOC_FSGETXATTR)
		1134	const_iv (FS_IOC_FSSETXATTR)
		1135	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1136	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1137	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1138
		1139	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1140
		1141	const_iv (FS_SECRM_FL)
		1142	const_iv (FS_UNRM_FL)
		1143	const_iv (FS_COMPR_FL)
		1144	const_iv (FS_SYNC_FL)
		1145	const_iv (FS_IMMUTABLE_FL)
		1146	const_iv (FS_APPEND_FL)
		1147	const_iv (FS_NODUMP_FL)
		1148	const_iv (FS_NOATIME_FL)
		1149	const_iv (FS_DIRTY_FL)
		1150	const_iv (FS_COMPRBLK_FL)
		1151	const_iv (FS_NOCOMP_FL)
		1152	const_iv (FS_ENCRYPT_FL)
		1153	const_iv (FS_BTREE_FL)
		1154	const_iv (FS_INDEX_FL)
		1155	const_iv (FS_JOURNAL_DATA_FL)
		1156	const_iv (FS_NOTAIL_FL)
		1157	const_iv (FS_DIRSYNC_FL)
		1158	const_iv (FS_TOPDIR_FL)
		1159	const_iv (FS_FL_USER_MODIFIABLE)
		1160
		1161	const_iv (FS_XFLAG_REALTIME)
		1162	const_iv (FS_XFLAG_PREALLOC)
		1163	const_iv (FS_XFLAG_IMMUTABLE)
		1164	const_iv (FS_XFLAG_APPEND)
		1165	const_iv (FS_XFLAG_SYNC)
		1166	const_iv (FS_XFLAG_NOATIME)
		1167	const_iv (FS_XFLAG_NODUMP)
		1168	const_iv (FS_XFLAG_RTINHERIT)
		1169	const_iv (FS_XFLAG_PROJINHERIT)
		1170	const_iv (FS_XFLAG_NOSYMLINKS)
		1171	const_iv (FS_XFLAG_EXTSIZE)
		1172	const_iv (FS_XFLAG_EXTSZINHERIT)
		1173	const_iv (FS_XFLAG_NODEFRAG)
		1174	const_iv (FS_XFLAG_FILESTREAM)
		1175	const_iv (FS_XFLAG_DAX)
		1176	const_iv (FS_XFLAG_HASATTR)
		1177
		1178	const_iv (FIEMAP_FLAG_SYNC)
		1179	const_iv (FIEMAP_FLAG_XATTR)
		1180	const_iv (FIEMAP_FLAGS_COMPAT)
		1181	const_iv (FIEMAP_EXTENT_LAST)
		1182	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1183	const_iv (FIEMAP_EXTENT_DELALLOC)
		1184	const_iv (FIEMAP_EXTENT_ENCODED)
		1185	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1186	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1187	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1188	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1189	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1190	const_iv (FIEMAP_EXTENT_MERGED)
		1191	const_iv (FIEMAP_EXTENT_SHARED)
		1192
		1193	const_iv (SPLICE_F_MOVE)
		1194	const_iv (SPLICE_F_NONBLOCK)
		1195	const_iv (SPLICE_F_MORE)
		1196	const_iv (SPLICE_F_GIFT)
		1197
		1198	const_iv (EFD_CLOEXEC)
		1199	const_iv (EFD_NONBLOCK)
		1200	const_iv (EFD_SEMAPHORE)
		1201
		1202	const_iv (CLOCK_REALTIME)
		1203	const_iv (CLOCK_MONOTONIC)
		1204	const_iv (CLOCK_BOOTTIME)
		1205	const_iv (CLOCK_REALTIME_ALARM)
		1206	const_iv (CLOCK_BOOTTIME_ALARM)
		1207
		1208	const_iv (TFD_NONBLOCK)
		1209	const_iv (TFD_CLOEXEC)
		1210
		1211	const_iv (TFD_TIMER_ABSTIME)
		1212	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1213
		1214	/* these are libeio constants, and are independent of gendef0 */
		1215	const_eio (SEEK_SET)
		1216	const_eio (SEEK_CUR)
		1217	const_eio (SEEK_END)
		1218
		1219	const_eio (MCL_FUTURE)
		1220	const_eio (MCL_CURRENT)
		1221
		1222	const_eio (MS_ASYNC)
		1223	const_eio (MS_INVALIDATE)
		1224	const_eio (MS_SYNC)
		1225
		1226	const_eio (MT_MODIFY)
549		1227
550	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1228	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
551	const_eio (SYNC_FILE_RANGE_WRITE)	1229	const_eio (SYNC_FILE_RANGE_WRITE)
552	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1230	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1231
		1232	const_eio (FALLOC_FL_KEEP_SIZE)
		1233	const_eio (FALLOC_FL_PUNCH_HOLE)
		1234	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1235	const_eio (FALLOC_FL_ZERO_RANGE)
		1236	const_eio (FALLOC_FL_INSERT_RANGE)
		1237	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1238
		1239	const_eio (RENAME_NOREPLACE)
		1240	const_eio (RENAME_EXCHANGE)
		1241	const_eio (RENAME_WHITEOUT)
553		1242
554	const_eio (READDIR_DENTS)	1243	const_eio (READDIR_DENTS)
555	const_eio (READDIR_DIRS_FIRST)	1244	const_eio (READDIR_DIRS_FIRST)
556	const_eio (READDIR_STAT_ORDER)	1245	const_eio (READDIR_STAT_ORDER)
557	const_eio (READDIR_FOUND_UNKNOWN)	1246	const_eio (READDIR_FOUND_UNKNOWN)
…		…
568	};	1257	};
569		1258
570	aio_stash = gv_stashpv ("IO::AIO" , 1);	1259	aio_stash = gv_stashpv ("IO::AIO" , 1);
571	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1260	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
572	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1261	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1262	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
573		1263
574	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1264	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
575	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1265	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
576		1266
577	create_respipe ();	1267	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
578		1268
579	if (eio_init (want_poll, done_poll) < 0)	1269	reinit ();
580	croak ("IO::AIO: unable to initialise eio library");
581
582	/* atfork child called in fifo order, so before eio's handler */
583	X_THREAD_ATFORK (0, 0, atfork_child);
584	}	1270	}
585		1271
586	void	1272	void
		1273	reinit ()
		1274	PROTOTYPE:
		1275
		1276	void
587	max_poll_reqs (int nreqs)	1277	max_poll_reqs (unsigned int nreqs)
588	PROTOTYPE: $	1278	PROTOTYPE: $
589	CODE:	1279	CODE:
590	eio_set_max_poll_reqs (nreqs);	1280	eio_set_max_poll_reqs (nreqs);
591		1281
592	void	1282	void
…		…
594	PROTOTYPE: $	1284	PROTOTYPE: $
595	CODE:	1285	CODE:
596	eio_set_max_poll_time (nseconds);	1286	eio_set_max_poll_time (nseconds);
597		1287
598	void	1288	void
599	min_parallel (int nthreads)	1289	min_parallel (unsigned int nthreads)
600	PROTOTYPE: $	1290	PROTOTYPE: $
601	CODE:	1291	CODE:
602	eio_set_min_parallel (nthreads);	1292	eio_set_min_parallel (nthreads);
603		1293
604	void	1294	void
605	max_parallel (int nthreads)	1295	max_parallel (unsigned int nthreads)
606	PROTOTYPE: $	1296	PROTOTYPE: $
607	CODE:	1297	CODE:
608	eio_set_max_parallel (nthreads);	1298	eio_set_max_parallel (nthreads);
609		1299
610	void	1300	void
611	max_idle (int nthreads)	1301	max_idle (unsigned int nthreads)
612	PROTOTYPE: $	1302	PROTOTYPE: $
613	CODE:	1303	CODE:
614	eio_set_max_idle (nthreads);	1304	eio_set_max_idle (nthreads);
615		1305
616	void	1306	void
		1307	idle_timeout (unsigned int seconds)
		1308	PROTOTYPE: $
		1309	CODE:
		1310	eio_set_idle_timeout (seconds);
		1311
		1312	void
617	max_outstanding (int maxreqs)	1313	max_outstanding (unsigned int maxreqs)
618	PROTOTYPE: $	1314	PROTOTYPE: $
619	CODE:	1315	CODE:
620	max_outstanding = maxreqs;	1316	max_outstanding = maxreqs;
621		1317
622	void	1318	void
623	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1319	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
624	PROTOTYPE: $$$;$
625	PPCODE:	1320	PPCODE:
626	{	1321	{
627	dREQ;	1322	dREQ;
628		1323
		1324	req->type = EIO_WD_OPEN;
		1325	req_set_path1 (req, pathname);
		1326
		1327	REQ_SEND;
		1328	}
		1329
		1330	void
		1331	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1332	PPCODE:
		1333	{
		1334	dREQ;
		1335
629	req->type = EIO_OPEN;	1336	req->type = EIO_OPEN;
630	req->sv1 = newSVsv (pathname);	1337	req_set_path1 (req, pathname);
631	req->ptr1 = SvPVbyte_nolen (req->sv1);
632	req->int1 = flags;	1338	req->int1 = flags;
633	req->int2 = mode;	1339	req->int2 = mode;
634		1340
635	REQ_SEND;	1341	REQ_SEND;
636	}	1342	}
637		1343
638	void	1344	void
639	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1345	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
640	PROTOTYPE: $;$
641	ALIAS:	1346	ALIAS:
642	aio_fsync = EIO_FSYNC	1347	aio_fsync = EIO_FSYNC
643	aio_fdatasync = EIO_FDATASYNC	1348	aio_fdatasync = EIO_FDATASYNC
		1349	aio_syncfs = EIO_SYNCFS
644	PPCODE:	1350	PPCODE:
645	{	1351	{
646	int fd = s_fileno_croak (fh, 0);	1352	int fd = s_fileno_croak (fh, 0);
647	dREQ;	1353	dREQ;
648		1354
649	req->type = ix;	1355	req->type = ix;
650	req->sv1 = newSVsv (fh);	1356	req->sv1 = newSVsv (fh);
651	req->int1 = fd;	1357	req->int1 = fd;
652		1358
653	REQ_SEND (req);	1359	REQ_SEND;
654	}	1360	}
655		1361
656	void	1362	void
657	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1363	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
658	PROTOTYPE: $$$$;$
659	PPCODE:	1364	PPCODE:
660	{	1365	{
661	int fd = s_fileno_croak (fh, 0);	1366	int fd = s_fileno_croak (fh, 0);
662	dREQ;	1367	dREQ;
663		1368
664	req->type = EIO_SYNC_FILE_RANGE;	1369	req->type = EIO_SYNC_FILE_RANGE;
665	req->sv1 = newSVsv (fh);	1370	req->sv1 = newSVsv (fh);
666	req->int1 = fd;	1371	req->int1 = fd;
667	req->offs = offset;	1372	req->offs = offset;
668	req->size = nbytes;	1373	req->size = nbytes;
669	req->int2 = flags;	1374	req->int2 = flags;
670		1375
671	REQ_SEND (req);	1376	REQ_SEND;
672	}	1377	}
673		1378
674	void	1379	void
675	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1380	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
676	PROTOTYPE: $;$
677	PPCODE:	1381	PPCODE:
678	{	1382	{
679	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
680	int fd = s_fileno_croak (fh, 0);	1383	int fd = s_fileno_croak (fh, 0);
681	dREQ;	1384	dREQ;
682		1385
683	if (close_pipe < 0)	1386	req->type = EIO_FALLOCATE;
		1387	req->sv1 = newSVsv (fh);
		1388	req->int1 = fd;
		1389	req->int2 = mode;
		1390	req->offs = offset;
		1391	req->size = len;
		1392
		1393	REQ_SEND;
		1394	}
		1395
		1396	void
		1397	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1398	PPCODE:
		1399	{
		1400	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1401	int fd = s_fileno_croak (fh, 0);
		1402	dREQ;
		1403
		1404	if (expect_false (close_fd < 0))
684	{	1405	{
685	int pipefd [2];	1406	int pipefd [2];
686		1407
		1408	if (
		1409	#ifdef _WIN32
		1410	_pipe (pipefd, 1, _O_BINARY) < 0
		1411	#else
687	if (pipe (pipefd) < 0	1412	pipe (pipefd) < 0
688	|| close (pipefd [1]) < 0
689	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1413	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1414	#endif
		1415	|| close (pipefd [1]) < 0
		1416	)
690	abort (); /*D*/	1417	abort (); /*D*/
691		1418
692	close_pipe = pipefd [0];	1419	close_fd = pipefd [0];
693	}	1420	}
694		1421
695	req->type = EIO_DUP2;	1422	req->type = EIO_DUP2;
696	req->int1 = close_pipe;	1423	req->int1 = close_fd;
697	req->sv2 = newSVsv (fh);	1424	req->sv2 = newSVsv (fh);
698	req->int2 = fd;	1425	req->int2 = fd;
699		1426
700	REQ_SEND (req);	1427	REQ_SEND;
701	}	1428	}
702		1429
703	void	1430	void
		1431	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1432	PPCODE:
		1433	{
		1434	int fd = s_fileno_croak (fh, 0);
		1435	dREQ;
		1436
		1437	req->type = EIO_SEEK;
		1438	req->sv1 = newSVsv (fh);
		1439	req->int1 = fd;
		1440	req->offs = SvVAL64 (offset);
		1441	req->int2 = whence;
		1442
		1443	REQ_SEND;
		1444	}
		1445
		1446	void
704	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1447	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
705	ALIAS:	1448	ALIAS:
706	aio_read = EIO_READ	1449	aio_read = EIO_READ
707	aio_write = EIO_WRITE	1450	aio_write = EIO_WRITE
708	PROTOTYPE: $$$$$;$
709	PPCODE:	1451	PPCODE:
710	{	1452	{
711	STRLEN svlen;	1453	STRLEN svlen;
712	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1454	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
713	char *svptr = SvPVbyte (data, svlen);	1455	char *svptr = SvPVbyte (data, svlen);
…		…
726	len = svlen - dataoffset;	1468	len = svlen - dataoffset;
727	}	1469	}
728	else	1470	else
729	{	1471	{
730	/* read: check type and grow scalar as necessary */	1472	/* read: check type and grow scalar as necessary */
731	SvUPGRADE (data, SVt_PV);	1473	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
732	svptr = SvGROW (data, len + dataoffset + 1);	1474	svptr = sv_grow (data, len + dataoffset + 1);
		1475	else if (SvCUR (data) < len + dataoffset)
		1476	croak ("length + dataoffset outside of scalar, and cannot grow");
733	}	1477	}
734		1478
735	{	1479	{
736	dREQ;	1480	dREQ;
737		1481
…		…
753	REQ_SEND;	1497	REQ_SEND;
754	}	1498	}
755	}	1499	}
756		1500
757	void	1501	void
758	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1502	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
759	PROTOTYPE: $$;$	1503	ALIAS:
		1504	aio_ioctl = EIO_IOCTL
		1505	aio_fcntl = EIO_FCNTL
760	PPCODE:	1506	PPCODE:
761	{	1507	{
762	SV *data;	1508	int fd = s_fileno_croak (fh, 0);
		1509	char *svptr;
		1510
		1511	if (SvPOK (arg) || !SvNIOK (arg))
		1512	{
		1513	STRLEN svlen;
		1514	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1515	#ifdef IOCPARM_LEN
		1516	STRLEN need = IOCPARM_LEN (request);
		1517	#else
		1518	STRLEN need = 256;
		1519	#endif
		1520
		1521	if (svlen < need)
		1522	svptr = SvGROW (arg, need);
		1523	}
		1524	else
		1525	svptr = (char *)SvIV (arg);
		1526
		1527	{
		1528	dREQ;
		1529
		1530	req->type = ix;
		1531	req->sv1 = newSVsv (fh);
		1532	req->int1 = fd;
		1533	req->int2 = (long)request;
		1534	req->sv2 = SvREFCNT_inc (arg);
		1535	req->ptr2 = svptr;
		1536
		1537	REQ_SEND;
		1538	}
		1539	}
		1540
		1541	void
		1542	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1543	ALIAS:
		1544	aio_readlink = EIO_READLINK
		1545	aio_realpath = EIO_REALPATH
		1546	PPCODE:
		1547	{
763	dREQ;	1548	dREQ;
764		1549
765	req->type = EIO_READLINK;	1550	req->type = ix;
766	req->sv1 = newSVsv (path);	1551	req_set_path1 (req, pathname);
767	req->ptr1 = SvPVbyte_nolen (req->sv1);
768		1552
769	REQ_SEND;	1553	REQ_SEND;
770	}	1554	}
771		1555
772	void	1556	void
773	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1557	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
774	PROTOTYPE: $$$$;$
775	PPCODE:	1558	PPCODE:
776	{	1559	{
777	int ifd = s_fileno_croak (in_fh , 0);	1560	int ifd = s_fileno_croak (in_fh , 0);
778	int ofd = s_fileno_croak (out_fh, 1);	1561	int ofd = s_fileno_croak (out_fh, 1);
779	dREQ;	1562	dREQ;
780		1563
781	req->type = EIO_SENDFILE;	1564	req->type = EIO_SENDFILE;
782	req->sv1 = newSVsv (out_fh);	1565	req->sv1 = newSVsv (out_fh);
783	req->int1 = ofd;	1566	req->int1 = ofd;
…		…
788		1571
789	REQ_SEND;	1572	REQ_SEND;
790	}	1573	}
791		1574
792	void	1575	void
793	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1576	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
794	PROTOTYPE: $$$;$
795	PPCODE:	1577	PPCODE:
796	{	1578	{
797	int fd = s_fileno_croak (fh, 0);	1579	int fd = s_fileno_croak (fh, 0);
798	dREQ;	1580	dREQ;
799		1581
800	req->type = EIO_READAHEAD;	1582	req->type = EIO_READAHEAD;
801	req->sv1 = newSVsv (fh);	1583	req->sv1 = newSVsv (fh);
802	req->int1 = fd;	1584	req->int1 = fd;
…		…
805		1587
806	REQ_SEND;	1588	REQ_SEND;
807	}	1589	}
808		1590
809	void	1591	void
810	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1592	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
811	ALIAS:	1593	ALIAS:
812	aio_stat = EIO_STAT	1594	aio_stat = EIO_STAT
813	aio_lstat = EIO_LSTAT	1595	aio_lstat = EIO_LSTAT
		1596	aio_statvfs = EIO_STATVFS
814	PPCODE:	1597	PPCODE:
815	{	1598	{
816	dREQ;	1599	dREQ;
817		1600
818	req->sv1 = newSVsv (fh_or_path);	1601	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
819
820	if (SvPOK (req->sv1))
821	{
822	req->type = ix;
823	req->ptr1 = SvPVbyte_nolen (req->sv1);
824	}
825	else
826	{
827	req->type = EIO_FSTAT;
828	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
829	}
830		1602
831	REQ_SEND;	1603	REQ_SEND;
832	}	1604	}
833		1605
		1606	UV
		1607	major (UV dev)
		1608	ALIAS:
		1609	minor = 1
		1610	CODE:
		1611	RETVAL = ix ? minor (dev) : major (dev);
		1612	OUTPUT:
		1613	RETVAL
		1614
		1615	UV
		1616	makedev (UV maj, UV min)
		1617	CODE:
		1618	RETVAL = makedev (maj, min);
		1619	OUTPUT:
		1620	RETVAL
		1621
834	void	1622	void
835	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1623	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
836	PPCODE:	1624	PPCODE:
837	{	1625	{
838	dREQ;	1626	dREQ;
839		1627
840	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1628	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
841	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1629	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
842	req->sv1 = newSVsv (fh_or_path);	1630	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
843
844	if (SvPOK (req->sv1))
845	{
846	req->type = EIO_UTIME;
847	req->ptr1 = SvPVbyte_nolen (req->sv1);
848	}
849	else
850	{
851	req->type = EIO_FUTIME;
852	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
853	}
854		1631
855	REQ_SEND;	1632	REQ_SEND;
856	}	1633	}
857		1634
858	void	1635	void
859	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1636	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
860	PPCODE:	1637	PPCODE:
861	{	1638	{
862	dREQ;	1639	dREQ;
863		1640
864	req->sv1 = newSVsv (fh_or_path);
865	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1641	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
866		1642	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
867	if (SvPOK (req->sv1))
868	{
869	req->type = EIO_TRUNCATE;
870	req->ptr1 = SvPVbyte_nolen (req->sv1);
871	}
872	else
873	{
874	req->type = EIO_FTRUNCATE;
875	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
876	}
877		1643
878	REQ_SEND;	1644	REQ_SEND;
879	}	1645	}
880		1646
881	void	1647	void
882	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1648	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
883	ALIAS:
884	aio_chmod = EIO_CHMOD
885	aio_mkdir = EIO_MKDIR
886	PPCODE:	1649	PPCODE:
887	{	1650	{
888	dREQ;	1651	dREQ;
889		1652
890	req->int2 = mode;	1653	req->int2 = mode;
891	req->sv1 = newSVsv (fh_or_path);	1654	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
892
893	if (SvPOK (req->sv1))
894	{
895	req->type = ix;
896	req->ptr1 = SvPVbyte_nolen (req->sv1);
897	}
898	else
899	{
900	req->type = EIO_FCHMOD;
901	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
902	}
903		1655
904	REQ_SEND;	1656	REQ_SEND;
905	}	1657	}
906		1658
907	void	1659	void
908	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1660	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
909	PPCODE:	1661	PPCODE:
910	{	1662	{
911	dREQ;	1663	dREQ;
912		1664
913	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1665	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
914	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1666	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
915	req->sv1 = newSVsv (fh_or_path);	1667	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
916
917	if (SvPOK (req->sv1))
918	{
919	req->type = EIO_CHOWN;
920	req->ptr1 = SvPVbyte_nolen (req->sv1);
921	}
922	else
923	{
924	req->type = EIO_FCHOWN;
925	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
926	}
927		1668
928	REQ_SEND;	1669	REQ_SEND;
929	}	1670	}
930		1671
931	void	1672	void
932	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1673	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
933	PPCODE:	1674	PPCODE:
934	{	1675	{
935	dREQ;	1676	dREQ;
936		1677
937	req->type = EIO_READDIR;	1678	req->type = EIO_READDIR;
938	req->sv1 = newSVsv (pathname);
939	req->ptr1 = SvPVbyte_nolen (req->sv1);
940	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1679	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
941		1680
942	if (flags & EIO_READDIR_DENTS)	1681	if (flags & EIO_READDIR_DENTS)
943	req->int1 |= EIO_READDIR_CUSTOM2;	1682	req->int1 |= EIO_READDIR_CUSTOM2;
944		1683
		1684	req_set_path1 (req, pathname);
		1685
945	REQ_SEND;	1686	REQ_SEND;
946	}	1687	}
947		1688
948	void	1689	void
		1690	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1691	PPCODE:
		1692	{
		1693	dREQ;
		1694
		1695	req->type = EIO_MKDIR;
		1696	req->int2 = mode;
		1697	req_set_path1 (req, pathname);
		1698
		1699	REQ_SEND;
		1700	}
		1701
		1702	void
949	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1703	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
950	ALIAS:	1704	ALIAS:
951	aio_unlink = EIO_UNLINK	1705	aio_unlink = EIO_UNLINK
952	aio_rmdir = EIO_RMDIR	1706	aio_rmdir = EIO_RMDIR
953	aio_readdir = EIO_READDIR	1707	aio_readdir = EIO_READDIR
954	PPCODE:	1708	PPCODE:
955	{	1709	{
956	dREQ;	1710	dREQ;
957		1711
958	req->type = ix;	1712	req->type = ix;
959	req->sv1 = newSVsv (pathname);	1713	req_set_path1 (req, pathname);
960	req->ptr1 = SvPVbyte_nolen (req->sv1);
961		1714
962	REQ_SEND;	1715	REQ_SEND;
963	}	1716	}
964		1717
965	void	1718	void
966	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1719	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
967	ALIAS:	1720	ALIAS:
968	aio_link = EIO_LINK	1721	aio_link = EIO_LINK
969	aio_symlink = EIO_SYMLINK	1722	aio_symlink = EIO_SYMLINK
970	aio_rename = EIO_RENAME	1723	aio_rename = EIO_RENAME
971	PPCODE:	1724	PPCODE:
972	{	1725	{
		1726	eio_wd wd2 = 0;
973	dREQ;	1727	dREQ;
974		1728
975	req->type = ix;	1729	req->type = ix;
976	req->sv1 = newSVsv (oldpath);	1730	req_set_path1 (req, oldpath);
977	req->ptr1 = SvPVbyte_nolen (req->sv1);	1731	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
978	req->sv2 = newSVsv (newpath);	1732	req->int3 = (long)wd2;
979	req->ptr2 = SvPVbyte_nolen (req->sv2);
980		1733
981	REQ_SEND;	1734	REQ_SEND;
982	}	1735	}
983		1736
984	void	1737	void
		1738	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1739	PPCODE:
		1740	{
		1741	eio_wd wd2 = 0;
		1742	dREQ;
		1743
		1744	req->type = EIO_RENAME;
		1745	req_set_path1 (req, oldpath);
		1746	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1747	req->int2 = flags;
		1748	req->int3 = (long)wd2;
		1749
		1750	REQ_SEND;
		1751	}
		1752
		1753	void
985	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1754	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
986	PPCODE:	1755	PPCODE:
987	{	1756	{
988	dREQ;	1757	dREQ;
989		1758
990	req->type = EIO_MKNOD;	1759	req->type = EIO_MKNOD;
991	req->sv1 = newSVsv (pathname);
992	req->ptr1 = SvPVbyte_nolen (req->sv1);
993	req->int2 = (mode_t)mode;	1760	req->int2 = (mode_t)mode;
994	req->offs = dev;	1761	req->offs = dev;
		1762	req_set_path1 (req, pathname);
995		1763
996	REQ_SEND;	1764	REQ_SEND;
997	}	1765	}
998		1766
999	void	1767	void
		1768	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
		1769	ALIAS:
		1770	aio_mtouch = EIO_MTOUCH
		1771	aio_msync = EIO_MSYNC
		1772	PPCODE:
		1773	{
		1774	STRLEN svlen;
		1775	char *svptr = SvPVbyte (data, svlen);
		1776	UV len = SvUV (length);
		1777
		1778	if (flags < 0)
		1779	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
		1780
		1781	if (offset < 0)
		1782	offset += svlen;
		1783
		1784	if (offset < 0 || offset > svlen)
		1785	croak ("offset outside of scalar");
		1786
		1787	if (!SvOK (length) || len + offset > svlen)
		1788	len = svlen - offset;
		1789
		1790	{
		1791	dREQ;
		1792
		1793	req->type = ix;
		1794	req->sv2 = SvREFCNT_inc (data);
		1795	req->ptr2 = (char *)svptr + offset;
		1796	req->size = len;
		1797	req->int1 = flags;
		1798
		1799	REQ_SEND;
		1800	}
		1801	}
		1802
		1803	void
		1804	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1805	PPCODE:
		1806	{
		1807	STRLEN svlen;
		1808	char *svptr = SvPVbyte (data, svlen);
		1809	UV len = SvUV (length);
		1810
		1811	if (offset < 0)
		1812	offset += svlen;
		1813
		1814	if (offset < 0 || offset > svlen)
		1815	croak ("offset outside of scalar");
		1816
		1817	if (!SvOK (length) || len + offset > svlen)
		1818	len = svlen - offset;
		1819
		1820	{
		1821	dREQ;
		1822
		1823	req->type = EIO_MLOCK;
		1824	req->sv2 = SvREFCNT_inc (data);
		1825	req->ptr2 = (char *)svptr + offset;
		1826	req->size = len;
		1827
		1828	REQ_SEND;
		1829	}
		1830	}
		1831
		1832	void
		1833	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1834	PPCODE:
		1835	{
		1836	dREQ;
		1837
		1838	req->type = EIO_MLOCKALL;
		1839	req->int1 = flags;
		1840
		1841	REQ_SEND;
		1842	}
		1843
		1844	void
		1845	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1846	PPCODE:
		1847	{
		1848	int fd = s_fileno_croak (fh, 0);
		1849	dREQ;
		1850
		1851	req->type = EIO_CUSTOM;
		1852	req->sv1 = newSVsv (fh);
		1853	req->int1 = fd;
		1854
		1855	req->feed = fiemap;
		1856	#if HAVE_FIEMAP
		1857	/* keep our fingers crossed that the next two types are 64 bit */
		1858	req->offs = start;
		1859	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1860	req->int2 = flags;
		1861	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1862	#endif
		1863
		1864	REQ_SEND;
		1865	}
		1866
		1867	void
		1868	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1869	PPCODE:
		1870	{
		1871	char *svptr = 0;
		1872
		1873	sv_clear_foreign (data);
		1874
		1875	if (length) /* known length, directly read into scalar */
		1876	{
		1877	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1878	svptr = sv_grow (data, length + 1);
		1879	else if (SvCUR (data) < length)
		1880	croak ("length outside of scalar, and cannot grow");
		1881	else
		1882	svptr = SvPVbyte_nolen (data);
		1883	}
		1884
		1885	{
		1886	dREQ;
		1887
		1888	req->type = EIO_SLURP;
		1889	req_set_path1 (req, pathname);
		1890	req->offs = offset;
		1891	req->size = length;
		1892	req->sv2 = SvREFCNT_inc (data);
		1893	req->ptr2 = svptr;
		1894
		1895	if (!SvREADONLY (data))
		1896	{
		1897	SvREADONLY_on (data);
		1898	req->flags |= FLAG_SV2_RO_OFF;
		1899	}
		1900
		1901	REQ_SEND;
		1902	}
		1903	}
		1904
		1905	void
1000	aio_busy (double delay, SV *callback=&PL_sv_undef)	1906	aio_busy (double delay, SV *callback = &PL_sv_undef)
1001	PPCODE:	1907	PPCODE:
1002	{	1908	{
1003	dREQ;	1909	dREQ;
1004		1910
1005	req->type = EIO_BUSY;	1911	req->type = EIO_BUSY;
…		…
1007		1913
1008	REQ_SEND;	1914	REQ_SEND;
1009	}	1915	}
1010		1916
1011	void	1917	void
1012	aio_group (SV *callback=&PL_sv_undef)	1918	aio_group (SV *callback = &PL_sv_undef)
1013	PROTOTYPE: ;$
1014	PPCODE:	1919	PPCODE:
1015	{	1920	{
1016	dREQ;	1921	dREQ;
1017		1922
1018	req->type = EIO_GROUP;	1923	req->type = EIO_GROUP;
1019		1924
		1925	PUTBACK;
1020	req_submit (req);	1926	req_submit (req);
		1927	SPAGAIN;
		1928
1021	XPUSHs (req_sv (req, aio_grp_stash));	1929	XPUSHs (req_sv (req, aio_grp_stash));
1022	}	1930	}
1023		1931
1024	void	1932	void
1025	aio_nop (SV *callback=&PL_sv_undef)	1933	aio_nop (SV *callback = &PL_sv_undef)
1026	ALIAS:	1934	ALIAS:
1027	aio_nop = EIO_NOP	1935	aio_nop = EIO_NOP
1028	aio_sync = EIO_SYNC	1936	aio_sync = EIO_SYNC
1029	PPCODE:	1937	PPCODE:
1030	{	1938	{
…		…
1034		1942
1035	REQ_SEND;	1943	REQ_SEND;
1036	}	1944	}
1037		1945
1038	int	1946	int
1039	aioreq_pri (int pri = 0)	1947	aioreq_pri (int pri = NO_INIT)
1040	PROTOTYPE: ;$
1041	CODE:	1948	CODE:
1042	RETVAL = next_pri;	1949	RETVAL = next_pri;
1043	if (items > 0)	1950	if (items > 0)
1044	{	1951	{
1045	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1952	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1057	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1964	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1058	next_pri = nice;	1965	next_pri = nice;
1059		1966
1060	void	1967	void
1061	flush ()	1968	flush ()
1062	PROTOTYPE:
1063	CODE:	1969	CODE:
1064	while (eio_nreqs ())	1970	while (eio_nreqs ())
1065	{	1971	{
1066	poll_wait ();	1972	poll_wait ();
1067	poll_cb ();	1973	poll_cb ();
1068	}	1974	}
1069		1975
1070	int	1976	int
1071	poll()	1977	poll ()
1072	PROTOTYPE:
1073	CODE:	1978	CODE:
1074	poll_wait ();	1979	poll_wait ();
1075	RETVAL = poll_cb ();	1980	RETVAL = poll_cb ();
1076	OUTPUT:	1981	OUTPUT:
1077	RETVAL	1982	RETVAL
1078		1983
1079	int	1984	int
1080	poll_fileno()	1985	poll_fileno ()
1081	PROTOTYPE:
1082	CODE:	1986	CODE:
1083	RETVAL = s_epipe_fd (&respipe);	1987	RETVAL = s_epipe_fd (&respipe);
1084	OUTPUT:	1988	OUTPUT:
1085	RETVAL	1989	RETVAL
1086		1990
1087	int	1991	int
1088	poll_cb(...)	1992	poll_cb (...)
1089	PROTOTYPE:	1993	PROTOTYPE:
1090	CODE:	1994	CODE:
1091	RETVAL = poll_cb ();	1995	RETVAL = poll_cb ();
1092	OUTPUT:	1996	OUTPUT:
1093	RETVAL	1997	RETVAL
1094		1998
1095	void	1999	void
1096	poll_wait()	2000	poll_wait ()
1097	PROTOTYPE:
1098	CODE:	2001	CODE:
1099	poll_wait ();	2002	poll_wait ();
1100		2003
1101	int	2004	int
1102	nreqs()	2005	nreqs ()
1103	PROTOTYPE:
1104	CODE:	2006	CODE:
1105	RETVAL = eio_nreqs ();	2007	RETVAL = eio_nreqs ();
1106	OUTPUT:	2008	OUTPUT:
1107	RETVAL	2009	RETVAL
1108		2010
1109	int	2011	int
1110	nready()	2012	nready ()
1111	PROTOTYPE:
1112	CODE:	2013	CODE:
1113	RETVAL = eio_nready ();	2014	RETVAL = eio_nready ();
1114	OUTPUT:	2015	OUTPUT:
1115	RETVAL	2016	RETVAL
1116		2017
1117	int	2018	int
1118	npending()	2019	npending ()
1119	PROTOTYPE:
1120	CODE:	2020	CODE:
1121	RETVAL = eio_npending ();	2021	RETVAL = eio_npending ();
1122	OUTPUT:	2022	OUTPUT:
1123	RETVAL	2023	RETVAL
1124		2024
1125	int	2025	int
1126	nthreads()	2026	nthreads ()
1127	PROTOTYPE:
1128	CODE:	2027	CODE:
1129	RETVAL = eio_nthreads ();	2028	RETVAL = eio_nthreads ();
1130	OUTPUT:	2029	OUTPUT:
1131	RETVAL	2030	RETVAL
1132		2031
1133	int	2032	int
1134	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	2033	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1135	PROTOTYPE: $$$$
1136	CODE:	2034	CODE:
1137	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1138	RETVAL = posix_fadvise (fh, offset, length, advice);	2035	RETVAL = posix_fadvise (fh, offset, length, advice);
1139	#else
1140	RETVAL = errno = ENOSYS;
1141	#endif
1142	OUTPUT:	2036	OUTPUT:
1143	RETVAL	2037	RETVAL
1144		2038
1145	ssize_t	2039	IV
1146	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	2040	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1147	PROTOTYPE: $$$$
1148	CODE:	2041	CODE:
1149	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2042	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1150	OUTPUT:	2043	OUTPUT:
1151	RETVAL	2044	RETVAL
1152		2045
		2046	void
		2047	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		2048	PPCODE:
		2049	sv_clear_foreign (scalar);
		2050	{
		2051	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		2052	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		2053	if (addr == (void *)-1)
		2054	XSRETURN_NO;
		2055
		2056	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
		2057
		2058	if (!(prot & PROT_WRITE))
		2059	SvREADONLY_on (scalar);
		2060
		2061	XSRETURN_YES;
		2062	}
		2063
		2064	void
		2065	munmap (SV *scalar)
		2066	CODE:
		2067	sv_clear_foreign (scalar);
		2068
		2069	SV *
		2070	mremap (SV *scalar, STRLEN new_length, int flags = 0, IV new_address = 0)
		2071	CODE:
		2072	{
		2073	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2074	void *new;
		2075
		2076	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2077	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2078
		2079	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2080
		2081	RETVAL = &PL_sv_no;
		2082
		2083	if (new != (void *)-1)
		2084	{
		2085	RETVAL = new == (void *)mg->mg_ptr
		2086	? newSVpvn ("0 but true", 10)
		2087	: &PL_sv_yes;
		2088
		2089	mg->mg_ptr = (char *)new;
		2090	mg->mg_obj = (SV *)new_length;
		2091
		2092	SvPVX (scalar) = mg->mg_ptr;
		2093	SvCUR_set (scalar, new_length);
		2094	}
		2095	}
		2096	OUTPUT:
		2097	RETVAL
		2098
		2099	int
		2100	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		2101	ALIAS:
		2102	mprotect = 1
		2103	CODE:
		2104	{
		2105	STRLEN svlen;
		2106	void *addr = SvPVbyte (scalar, svlen);
		2107	STRLEN len = SvUV (length);
		2108
		2109	if (offset < 0)
		2110	offset += svlen;
		2111
		2112	if (offset < 0 || offset > svlen)
		2113	croak ("offset outside of scalar");
		2114
		2115	if (!SvOK (length) || len + offset > svlen)
		2116	len = svlen - offset;
		2117
		2118	addr = (void *)(((intptr_t)addr) + offset);
		2119	eio_page_align (&addr, &len);
		2120
		2121	switch (ix)
		2122	{
		2123	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		2124	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		2125	}
		2126	}
		2127	OUTPUT:
		2128	RETVAL
		2129
		2130	int
		2131	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		2132	CODE:
		2133	{
		2134	STRLEN svlen;
		2135	void *addr = SvPVbyte (scalar, svlen);
		2136	size_t len = SvUV (length);
		2137
		2138	if (offset < 0)
		2139	offset += svlen;
		2140
		2141	if (offset < 0 || offset > svlen)
		2142	croak ("offset outside of scalar");
		2143
		2144	if (!SvOK (length) || len + offset > svlen)
		2145	len = svlen - offset;
		2146
		2147	addr = (void *)(((intptr_t)addr) + offset);
		2148	eio_page_align (&addr, &len);
		2149	#if _POSIX_MEMLOCK_RANGE
		2150	RETVAL = munlock (addr, len);
		2151	#else
		2152	RETVAL = EIO_ENOSYS ();
		2153	#endif
		2154	}
		2155	OUTPUT:
		2156	RETVAL
		2157
		2158	int
		2159	munlockall ()
		2160	CODE:
		2161	#if _POSIX_MEMLOCK
		2162	munlockall ();
		2163	#else
		2164	RETVAL = EIO_ENOSYS ();
		2165	#endif
		2166	OUTPUT:
		2167	RETVAL
		2168
		2169	int
		2170	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2171	CODE:
		2172	{
		2173	#if HAVE_LINUX_SPLICE
		2174	loff_t off_in_, off_out_;
		2175	RETVAL = splice (
		2176	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2177	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2178	length, flags
		2179	);
		2180	#else
		2181	RETVAL = EIO_ENOSYS ();
		2182	#endif
		2183	}
		2184	OUTPUT:
		2185	RETVAL
		2186
		2187	int
		2188	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2189	CODE:
		2190	#if HAVE_LINUX_SPLICE
		2191	RETVAL = tee (rfh, wfh, length, flags);
		2192	#else
		2193	RETVAL = EIO_ENOSYS ();
		2194	#endif
		2195	OUTPUT:
		2196	RETVAL
		2197
		2198	int
		2199	pipesize (aio_rfd rfh, int new_size = -1)
		2200	PROTOTYPE: $;$
		2201	CODE:
		2202	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2203	if (new_size >= 0)
		2204	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2205	else
		2206	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2207	#else
		2208	errno = ENOSYS;
		2209	RETVAL = -1;
		2210	#endif
		2211	OUTPUT:
		2212	RETVAL
		2213
		2214	void
		2215	pipe2 (int flags = 0)
		2216	PROTOTYPE: ;$
		2217	PPCODE:
		2218	{
		2219	int fd[2];
		2220	int res;
		2221
		2222	if (flags)
		2223	#if HAVE_PIPE2
		2224	res = pipe2 (fd, flags);
		2225	#else
		2226	res = (errno = ENOSYS, -1);
		2227	#endif
		2228	else
		2229	res = pipe (fd);
		2230
		2231	if (!res)
		2232	{
		2233	EXTEND (SP, 2);
		2234	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2235	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2236	}
		2237	}
		2238
		2239	void
		2240	eventfd (unsigned int initval = 0, int flags = 0)
		2241	PPCODE:
		2242	{
		2243	int fd;
		2244	#if HAVE_EVENTFD
		2245	fd = eventfd (initval, flags);
		2246	#else
		2247	fd = (errno = ENOSYS, -1);
		2248	#endif
		2249
		2250	XPUSHs (newmortalFH (fd, O_RDWR));
		2251	}
		2252
		2253	void
		2254	timerfd_create (int clockid, int flags = 0)
		2255	PPCODE:
		2256	{
		2257	int fd;
		2258	#if HAVE_TIMERFD
		2259	fd = timerfd_create (clockid, flags);
		2260	#else
		2261	fd = (errno = ENOSYS, -1);
		2262	#endif
		2263
		2264	XPUSHs (newmortalFH (fd, O_RDWR));
		2265	}
		2266
		2267	void
		2268	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2269	PPCODE:
		2270	{
		2271	int fd = s_fileno_croak (fh, 0);
		2272	#if HAVE_TIMERFD
		2273	int res;
		2274	struct itimerspec its, ots;
		2275
		2276	ts_set (&its.it_interval, interval);
		2277	ts_set (&its.it_value , value);
		2278	res = timerfd_settime (fd, flags, &its, &ots);
		2279
		2280	if (!res)
		2281	{
		2282	EXTEND (SP, 2);
		2283	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2284	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2285	}
		2286	#else
		2287	errno = ENOSYS;
		2288	#endif
		2289	}
		2290
		2291	void
		2292	timerfd_gettime (SV *fh)
		2293	PPCODE:
		2294	{
		2295	int fd = s_fileno_croak (fh, 0);
		2296	#if HAVE_TIMERFD
		2297	int res;
		2298	struct itimerspec ots;
		2299	res = timerfd_gettime (fd, &ots);
		2300
		2301	if (!res)
		2302	{
		2303	EXTEND (SP, 2);
		2304	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2305	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2306	}
		2307	#else
		2308	errno = ENOSYS;
		2309	#endif
		2310	}
		2311
		2312	UV
		2313	get_fdlimit ()
		2314	CODE:
		2315	#if HAVE_RLIMITS
		2316	struct rlimit rl;
		2317	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2318	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2319	#endif
		2320	XSRETURN_UNDEF;
		2321	OUTPUT:
		2322	RETVAL
		2323
		2324	void
		2325	min_fdlimit (UV limit = 0x7fffffffU)
		2326	CODE:
		2327	{
		2328	#if HAVE_RLIMITS
		2329	struct rlimit rl;
		2330	rlim_t orig_rlim_max;
		2331	UV bit;
		2332
		2333	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2334	goto fail;
		2335
		2336	if (rl.rlim_cur == RLIM_INFINITY)
		2337	XSRETURN_YES;
		2338
		2339	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2340
		2341	if (rl.rlim_cur < limit)
		2342	{
		2343	rl.rlim_cur = limit;
		2344
		2345	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2346	rl.rlim_max = rl.rlim_cur;
		2347	}
		2348
		2349	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2350	XSRETURN_YES;
		2351
		2352	if (errno == EPERM)
		2353	{
		2354	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2355	/* our limit overflows a system-wide limit */
		2356	/* try an adaptive algorithm, but do not lower the hardlimit */
		2357	rl.rlim_max = 0;
		2358	for (bit = 0x40000000U; bit; bit >>= 1)
		2359	{
		2360	rl.rlim_max |= bit;
		2361	rl.rlim_cur = rl.rlim_max;
		2362
		2363	/* nevr decrease the hard limit */
		2364	if (rl.rlim_max < orig_rlim_max)
		2365	break;
		2366
		2367	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2368	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2369	}
		2370
		2371	/* now, raise the soft limit to the max permitted */
		2372	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2373	{
		2374	rl.rlim_cur = rl.rlim_max;
		2375	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2376	errno = EPERM;
		2377	}
		2378	}
		2379	#endif
		2380	fail:
		2381	XSRETURN_UNDEF;
		2382	}
		2383
1153	void _on_next_submit (SV *cb)	2384	void _on_next_submit (SV *cb)
1154	CODE:	2385	CODE:
1155	SvREFCNT_dec (on_next_submit);	2386	SvREFCNT_dec (on_next_submit);
1156	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2387	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1157		2388
1158	PROTOTYPES: DISABLE	2389	PROTOTYPES: DISABLE
1159		2390
		2391	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2392
		2393	BOOT:
		2394	{
		2395	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2396	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2397	}
		2398
		2399	void
		2400	DESTROY (SV *self)
		2401	CODE:
		2402	{
		2403	aio_wd wd = SvAIO_WD (self);
		2404	#if HAVE_AT
		2405	{
		2406	SV *callback = &PL_sv_undef;
		2407	dREQ; /* clobbers next_pri :/ */
		2408	next_pri = req->pri; /* restore next_pri */
		2409	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2410	req->type = EIO_WD_CLOSE;
		2411	req->wd = wd;
		2412	REQ_SEND;
		2413	}
		2414	#else
		2415	eio_wd_close_sync (wd);
		2416	#endif
		2417	}
		2418
1160	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2419	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1161		2420
1162	void	2421	void
1163	cancel (aio_req_ornot req)	2422	cancel (aio_req_ornot req)
1164	CODE:	2423	CODE:
1165	eio_cancel (req);	2424	eio_cancel (req);
1166		2425
1167	void	2426	void
1168	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2427	cb (aio_req_ornot req, SV *callback = NO_INIT)
1169	PPCODE:	2428	PPCODE:
1170	{	2429	{
1171	if (GIMME_V != G_VOID)	2430	if (GIMME_V != G_VOID)
1172	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2431	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1173		2432
1174	if (items > 1)	2433	if (items > 1)
1175	{	2434	{
1176	SV *cb_cv =get_cb (callback);	2435	SV *cb_cv = get_cb (callback);
1177		2436
1178	SvREFCNT_dec (req->callback);	2437	SvREFCNT_dec (req->callback);
1179	req->callback = SvREFCNT_inc (cb_cv);	2438	req->callback = SvREFCNT_inc (cb_cv);
1180	}	2439	}
1181	}	2440	}
…		…
1238	limit (aio_req grp, int limit)	2497	limit (aio_req grp, int limit)
1239	CODE:	2498	CODE:
1240	eio_grp_limit (grp, limit);	2499	eio_grp_limit (grp, limit);
1241		2500
1242	void	2501	void
1243	feed (aio_req grp, SV *callback=&PL_sv_undef)	2502	feed (aio_req grp, SV *callback = &PL_sv_undef)
1244	CODE:	2503	CODE:
1245	{	2504	{
1246	SvREFCNT_dec (grp->sv2);	2505	SvREFCNT_dec (grp->sv2);
1247	grp->sv2 = newSVsv (callback);	2506	grp->sv2 = newSVsv (callback);
1248	grp->feed = aio_grp_feed;	2507	grp->feed = aio_grp_feed;

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