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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.148 by root, Wed Jun 17 01:14:48 2009 UTC vs.
Revision 1.257 by root, Tue Jul 17 23:20:09 2018 UTC

…		…
13	#include <sys/stat.h>	13	#include <sys/stat.h>
14	#include <limits.h>	14	#include <limits.h>
15	#include <fcntl.h>	15	#include <fcntl.h>
16	#include <sched.h>	16	#include <sched.h>
17		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
18	/* perl namespace pollution */	36	/* perl namespace pollution */
19	#undef VERSION	37	#undef VERSION
20
21	#ifdef _WIN32
22
23	# define EIO_STRUCT_DIRENT Direntry_t
24	# undef malloc
25	# undef free
26
27	// perl overrides all those nice win32 functions
28	# undef open
29	# undef read
30	# undef write
31	# undef send
32	# undef recv
33	# undef stat
34	# undef fstat
35	# define lstat stat
36	# undef truncate
37	# undef ftruncate
38	# undef open
39	# undef close
40	# undef unlink
41	# undef rmdir
42	# undef rename
43	# undef lseek
44
45	# define chown(a,b,c) (errno = ENOSYS, -1)
46	# define fchown(a,b,c) (errno = ENOSYS, -1)
47	# define fchmod(a,b) (errno = ENOSYS, -1)
48	# define symlink(a,b) (errno = ENOSYS, -1)
49	# define readlink(a,b,c) (errno = ENOSYS, -1)
50	# define mknod(a,b,c) (errno = ENOSYS, -1)
51	# define truncate(a,b) (errno = ENOSYS, -1)
52	# define ftruncate(fd,o) chsize ((fd), (o))
53	# define fsync(fd) _commit (fd)
54	# define opendir(fd) (errno = ENOSYS, 0)
55	# define readdir(fd) (errno = ENOSYS, -1)
56	# define closedir(fd) (errno = ENOSYS, -1)
57	# define mkdir(a,b) mkdir (a)
58
59	#else
60
61	# include <sys/time.h>
62	# include <sys/select.h>
63	# include <unistd.h>
64	# include <utime.h>
65	# include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent
67
68	#endif
69		38
70	/* perl stupidly overrides readdir and maybe others */	39	/* perl stupidly overrides readdir and maybe others */
71	/* with thread-unsafe versions, imagine that :( */	40	/* with thread-unsafe versions, imagine that :( */
72	#undef readdir	41	#undef readdir
73	#undef opendir	42	#undef opendir
74	#undef closedir	43	#undef closedir
75		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
76	#define EIO_STRUCT_STAT Stat_t	80	#define EIO_STRUCT_STATI64
77		81
78	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8
80	# define VAL64 IV
81	# define SvVAL64 SvIV
82	# define newSVval64 newSViv
83	#else	82	#else
84	# define VAL64 NV	83
85	# define SvVAL64 SvNV	84	#include <sys/time.h>
86	# 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
87	#endif	92	#endif
88		93
89	/*****************************************************************************/	94	/*****************************************************************************/
90		95
91	#if __GNUC__ >= 3	96	#if __GNUC__ >= 3
…		…
97	#define expect_false(expr) expect ((expr) != 0, 0)	102	#define expect_false(expr) expect ((expr) != 0, 0)
98	#define expect_true(expr) expect ((expr) != 0, 1)	103	#define expect_true(expr) expect ((expr) != 0, 1)
99		104
100	/*****************************************************************************/	105	/*****************************************************************************/
101		106
102	static HV *stash;	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
103	typedef SV SV8; /* byte-sv, used for argument-checking */	124	typedef SV SV8; /* byte-sv, used for argument-checking */
104	typedef int aio_rfd; /* read file desriptor */	125	typedef int aio_rfd; /* read file desriptor */
105	typedef int aio_wfd; /* write file descriptor */	126	typedef int aio_wfd; /* write file descriptor */
106		127
107	#define AIO_REQ_KLASS "IO::AIO::REQ"	128	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
108	#define AIO_GRP_KLASS "IO::AIO::GRP"
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	#endif
123
124	#ifndef POSIX_FADV_SEQUENTIAL
125	# define POSIX_FADV_SEQUENTIAL 0
126	#endif
127
128	#ifndef POSIX_FADV_RANDOM
129	# define POSIX_FADV_RANDOM 0
130	#endif
131
132	#ifndef POSIX_FADV_NOREUSE
133	# define POSIX_FADV_NOREUSE 0
134	#endif
135
136	#ifndef POSIX_FADV_WILLNEED
137	# define POSIX_FADV_WILLNEED 0
138	#endif
139
140	#ifndef POSIX_FADV_DONTNEED
141	# define POSIX_FADV_DONTNEED 0
142	#endif
143		140
144	static int req_invoke (eio_req *req);	141	static int req_invoke (eio_req *req);
145	#define EIO_FINISH(req) req_invoke (req)	142	#define EIO_FINISH(req) req_invoke (req)
146	static void req_destroy (eio_req *grp);	143	static void req_destroy (eio_req *grp);
147	#define EIO_DESTROY(req) req_destroy (req)	144	#define EIO_DESTROY(req) req_destroy (req)
148		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
149	enum {	377	enum {
150	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	378	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
151	};	379	};
152		380
153	#include "libeio/eio.c"
154
155	typedef eio_req *aio_req;	381	typedef eio_req *aio_req;
156	typedef eio_req *aio_req_ornot;	382	typedef eio_req *aio_req_ornot;
		383	typedef eio_wd aio_wd;
157		384
158	static SV *on_next_submit;	385	static SV *on_next_submit;
159	static int next_pri = EIO_PRI_DEFAULT;	386	static int next_pri = EIO_PRI_DEFAULT;
160	static int max_outstanding;	387	static int max_outstanding;
161		388
162	static int respipe_osf [2], respipe [2] = { -1, -1 };	389	static s_epipe respipe;
163		390
164	static void req_destroy (aio_req req);	391	static void req_destroy (aio_req req);
165	static void req_cancel (aio_req req);	392	static void req_cancel (aio_req req);
166		393
167	static void want_poll (void)	394	static void
		395	want_poll (void)
168	{	396	{
169	/* write a dummy byte to the pipe so fh becomes ready */	397	/* write a dummy byte to the pipe so fh becomes ready */
170	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	398	s_epipe_signal (&respipe);
171	}	399	}
172		400
173	static void done_poll (void)	401	static void
		402	done_poll (void)
174	{	403	{
175	/* read any signals sent by the worker threads */	404	/* read any signals sent by the worker threads */
176	char buf [4];	405	s_epipe_drain (&respipe);
177	while (respipe_read (respipe [0], buf, 4) == 4)
178	;
179	}	406	}
180		407
181	/* must be called at most once */	408	/* must be called at most once */
182	static SV *req_sv (aio_req req, const char *klass)	409	static SV *
		410	req_sv (aio_req req, HV *stash)
183	{	411	{
184	if (!req->self)	412	if (!req->self)
185	{	413	{
186	req->self = (SV *)newHV ();	414	req->self = (SV *)newHV ();
187	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	415	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
188	}	416	}
189		417
190	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	418	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
191	}	419	}
192		420
193	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)
194	{	429	{
195	MAGIC *mg;	430	MAGIC *mg;
196		431
197	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	432	if (!SvROK (sv)
		433	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		434	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		435	&& SvSTASH (SvRV (sv)) != aio_req_stash
		436	&& !sv_derived_from (sv, "IO::AIO::REQ")))
198	croak ("object of class " AIO_REQ_KLASS " expected");	437	croak ("object of class IO::AIO::REQ expected");
199		438
200	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	439	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
201		440
202	return mg ? (aio_req)mg->mg_ptr : 0;	441	return mg ? (aio_req)mg->mg_ptr : 0;
203	}	442	}
204		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
205	static void aio_grp_feed (aio_req grp)	481	aio_grp_feed (aio_req grp)
206	{	482	{
207	if (grp->sv2 && SvOK (grp->sv2))	483	if (grp->sv2 && SvOK (grp->sv2))
208	{	484	{
209	dSP;	485	dSP;
210		486
211	ENTER;	487	ENTER;
212	SAVETMPS;	488	SAVETMPS;
213	PUSHMARK (SP);	489	PUSHMARK (SP);
214	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	490	XPUSHs (req_sv (grp, aio_grp_stash));
215	PUTBACK;	491	PUTBACK;
216	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	492	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
217	SPAGAIN;	493	SPAGAIN;
218	FREETMPS;	494	FREETMPS;
219	LEAVE;	495	LEAVE;
220	}	496	}
221	}	497	}
222		498
		499	static void
223	static void req_submit (eio_req *req)	500	req_submit (eio_req *req)
224	{	501	{
225	eio_submit (req);	502	eio_submit (req);
226		503
227	if (expect_false (on_next_submit))	504	if (expect_false (on_next_submit))
228	{	505	{
…		…
235	PUTBACK;	512	PUTBACK;
236	call_sv (cb, G_DISCARD | G_EVAL);	513	call_sv (cb, G_DISCARD | G_EVAL);
237	}	514	}
238	}	515	}
239		516
		517	static int
240	static int req_invoke (eio_req *req)	518	req_invoke (eio_req *req)
241	{	519	{
242	dSP;
243
244	if (req->flags & FLAG_SV2_RO_OFF)	520	if (req->flags & FLAG_SV2_RO_OFF)
245	SvREADONLY_off (req->sv2);	521	SvREADONLY_off (req->sv2);
246		522
247	if (!EIO_CANCELLED (req) && req->callback)	523	if (!EIO_CANCELLED (req) && req->callback)
248	{	524	{
		525	dSP;
		526	static SV *sv_result_cache; /* caches the result integer SV */
		527	SV *sv_result;
		528
249	ENTER;	529	ENTER;
250	SAVETMPS;	530	SAVETMPS;
251	PUSHMARK (SP);	531	PUSHMARK (SP);
252	EXTEND (SP, 1);	532	EXTEND (SP, 1);
253		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
254	switch (req->type)	547	switch (req->type)
255	{	548	{
		549	case EIO_WD_OPEN:
		550	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		551	break;
		552
256	case EIO_READDIR:	553	case EIO_READDIR:
257	{	554	{
258	SV *rv = &PL_sv_undef;	555	SV *rv = &PL_sv_undef;
259		556
260	if (req->result >= 0)	557	if (req->result >= 0)
…		…
313	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))));
314	}	611	}
315	break;	612	break;
316		613
317	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:
318	{	620	{
319	/* convert fd to fh */
320	SV *fh = &PL_sv_undef;	621	SV *rv = &PL_sv_undef;
321		622
		623	#ifndef _WIN32
322	if (req->result >= 0)	624	if (req->result >= 0)
323	{	625	{
		626	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
324	GV *gv = (GV *)sv_newmortal ();	627	HV *hv = newHV ();
325	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	628	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
326	char sym [64];	629	* chooses to make it a struct.
327	int symlen;
328		630	*/
329	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);	631	unsigned long fsid = 0;
330	gv_init (gv, stash, sym, symlen, 0);	632	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
331		633
332	symlen = snprintf (	634	rv = sv_2mortal (newRV_noinc ((SV *)hv));
333	sym,
334	sizeof (sym),
335	"%s&=%d",
336	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
337	(int)req->result
338	);
339		635
340	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	636	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
341	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);
342	}	647	}
		648	#endif
343		649
344	PUSHs (fh);	650	PUSHs (rv);
345	}	651	}
		652
346	break;	653	break;
347		654
348	case EIO_GROUP:	655	case EIO_GROUP:
349	req->int1 = 2; /* mark group as finished */	656	req->int1 = 2; /* mark group as finished */
350		657
…		…
362	case EIO_NOP:	669	case EIO_NOP:
363	case EIO_BUSY:	670	case EIO_BUSY:
364	break;	671	break;
365		672
366	case EIO_READLINK:	673	case EIO_READLINK:
		674	case EIO_REALPATH:
367	if (req->result > 0)	675	if (req->result > 0)
368	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	676	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
369	break;	677	break;
370		678
371	case EIO_STAT:	679	case EIO_STAT:
372	case EIO_LSTAT:	680	case EIO_LSTAT:
373	case EIO_FSTAT:	681	case EIO_FSTAT:
374	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	682	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		683
375	PL_laststatval = req->result;	684	if (!(PL_laststatval = req->result))
		685	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
376	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	686	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
377	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)));
378	break;	693	break;
379		694
380	case EIO_READ:	695	case EIO_READ:
381	{	696	{
382	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));
383	*SvEND (req->sv2) = 0;	698	*SvEND (req->sv2) = 0;
384	SvPOK_only (req->sv2);	699	SvPOK_only (req->sv2);
385	SvSETMAGIC (req->sv2);	700	SvSETMAGIC (req->sv2);
386	PUSHs (sv_2mortal (newSViv (req->result)));	701	PUSHs (sv_result);
387	}	702	}
388	break;	703	break;
389		704
390	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 */
391	if (req->result > 0)	770	if (req->result > 0)
392	req->result = 0;	771	SvIV_set (sv_result, 0);
393	/* FALLTHROUGH */	772	/* FALLTHROUGH */
394		773
395	default:	774	default:
396	PUSHs (sv_2mortal (newSViv (req->result)));	775	PUSHs (sv_result);
397	break;	776	break;
398	}	777	}
399		778
400	errno = req->errorno;	779	errno = req->errorno;
401		780
402	PUTBACK;	781	PUTBACK;
403	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	782	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
404	SPAGAIN;	783	SPAGAIN;
405		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
406	FREETMPS;	790	FREETMPS;
407	LEAVE;	791	LEAVE;
408		792
409	PUTBACK;	793	PUTBACK;
410	}	794	}
411		795
412	return !!SvTRUE (ERRSV);	796	return !!SvTRUE (ERRSV);
413	}	797	}
414		798
		799	static void
415	static void req_destroy (aio_req req)	800	req_destroy (aio_req req)
416	{	801	{
417	if (req->self)	802	if (req->self)
418	{	803	{
419	sv_unmagic (req->self, PERL_MAGIC_ext);	804	sv_unmagic (req->self, PERL_MAGIC_ext);
420	SvREFCNT_dec (req->self);	805	SvREFCNT_dec (req->self);
421	}	806	}
422		807
423	SvREFCNT_dec (req->sv1);	808	SvREFCNT_dec (req->sv1);
424	SvREFCNT_dec (req->sv2);	809	SvREFCNT_dec (req->sv2);
		810	SvREFCNT_dec (req->sv3);
		811	SvREFCNT_dec (req->sv4);
425	SvREFCNT_dec (req->callback);	812	SvREFCNT_dec (req->callback);
426		813
427	Safefree (req);	814	free (req);
428	}	815	}
429		816
		817	static void
430	static void req_cancel_subs (aio_req grp)	818	req_cancel_subs (aio_req grp)
431	{	819	{
432	aio_req sub;
433
434	if (grp->type != EIO_GROUP)	820	if (grp->type != EIO_GROUP)
435	return;	821	return;
436		822
437	SvREFCNT_dec (grp->sv2);	823	SvREFCNT_dec (grp->sv2);
438	grp->sv2 = 0;	824	grp->sv2 = 0;
439		825
440	eio_grp_cancel (grp);	826	eio_grp_cancel (grp);
441	}	827	}
442		828
443	#ifdef USE_SOCKETS_AS_HANDLES	829	static void ecb_cold
444	# define TO_SOCKET(x) (win32_get_osfhandle (x))	830	create_respipe (void)
445	#else	831	{
446	# define TO_SOCKET(x) (x)	832	if (s_epipe_renew (&respipe))
447	#endif	833	croak ("IO::AIO: unable to initialize result pipe");
		834	}
448		835
449	static void	836	static void
450	create_respipe (void)	837	poll_wait (void)
451	{	838	{
452	int old_readfd = respipe [0];
453
454	if (respipe [1] >= 0)
455	respipe_close (TO_SOCKET (respipe [1]));
456
457	#ifdef _WIN32
458	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
459	#else
460	if (pipe (respipe))
461	#endif
462	croak ("unable to initialize result pipe");
463
464	if (old_readfd >= 0)
465	{
466	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
467	croak ("unable to initialize result pipe(2)");
468
469	respipe_close (respipe [0]);
470	respipe [0] = old_readfd;
471	}
472
473	#ifdef _WIN32
474	int arg = 1;
475	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
476	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
477	#else
478	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
479	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
480	#endif
481	croak ("unable to initialize result pipe(3)");
482
483	respipe_osf [0] = TO_SOCKET (respipe [0]);
484	respipe_osf [1] = TO_SOCKET (respipe [1]);
485	}
486
487	static void poll_wait (void)
488	{
489	fd_set rfd;
490
491	while (eio_nreqs ())	839	while (eio_nreqs ())
492	{	840	{
493	int size;	841	int size;
494		842
495	X_LOCK (reslock);	843	X_LOCK (EIO_POOL->reslock);
496	size = res_queue.size;	844	size = EIO_POOL->res_queue.size;
497	X_UNLOCK (reslock);	845	X_UNLOCK (EIO_POOL->reslock);
498		846
499	if (size)	847	if (size)
500	return;	848	return;
501		849
502	etp_maybe_start_thread ();	850	etp_maybe_start_thread (EIO_POOL);
503		851
504	FD_ZERO (&rfd);	852	s_epipe_wait (&respipe);
505	FD_SET (respipe [0], &rfd);
506
507	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
508	}	853	}
509	}	854	}
510		855
511	static int poll_cb (void)	856	static int
		857	poll_cb (void)
512	{	858	{
513	for (;;)	859	for (;;)
514	{	860	{
515	int res = eio_poll ();	861	int res = eio_poll ();
516		862
…		…
522		868
523	poll_wait ();	869	poll_wait ();
524	}	870	}
525	}	871	}
526		872
527	static void atfork_child (void)	873	static void ecb_cold
		874	reinit (void)
528	{	875	{
529	create_respipe ();	876	create_respipe ();
		877
		878	if (eio_init (want_poll, done_poll) < 0)
		879	croak ("IO::AIO: unable to initialise eio library");
530	}	880	}
		881
		882	/*****************************************************************************/
531		883
532	static SV *	884	static SV *
533	get_cb (SV *cb_sv)	885	get_cb (SV *cb_sv)
534	{	886	{
535	HV *st;	887	SvGETMAGIC (cb_sv);
536	GV *gvp;	888	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		889	}
		890
		891	static aio_req ecb_noinline
		892	dreq (SV *callback)
		893	{
537	CV *cv;	894	SV *cb_cv;
		895	aio_req req;
		896	int req_pri = next_pri;
		897	next_pri = EIO_PRI_DEFAULT;
538		898
539	if (!SvOK (cb_sv))	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
540	return 0;	908	return req;
541
542	cv = sv_2cv (cb_sv, &st, &gvp, 0);
543
544	if (!cv)
545	croak ("IO::AIO callback must be undef or a CODE reference");
546
547	return (SV *)cv;
548	}	909	}
549		910
550	#define dREQ \	911	#define dREQ \
551	SV *cb_cv; \	912	aio_req req = dreq (callback); \
552	aio_req req; \
553	int req_pri = next_pri; \
554	next_pri = EIO_PRI_DEFAULT; \
555	\
556	cb_cv = get_cb (callback); \
557	\
558	Newz (0, req, 1, eio_req); \
559	if (!req) \
560	croak ("out of memory during eio_req allocation"); \
561	\
562	req->callback = SvREFCNT_inc (cb_cv); \
563	req->pri = req_pri
564		913
565	#define REQ_SEND \	914	#define REQ_SEND \
566	PUTBACK; \	915	PUTBACK; \
567	req_submit (req); \	916	req_submit (req); \
568	SPAGAIN; \	917	SPAGAIN; \
569	\	918	\
570	if (GIMME_V != G_VOID) \	919	if (GIMME_V != G_VOID) \
571	XPUSHs (req_sv (req, AIO_REQ_KLASS));	920	XPUSHs (req_sv (req, aio_req_stash));
572		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
573	static int	988	static void
574	extract_fd (SV *fh, int wr)	989	ts_set (struct timespec *ts, NV value)
575	{	990	{
576	int fd = PerlIO_fileno (wr ? IoOFP (sv_2io (fh)) : IoIFP (sv_2io (fh)));	991	ts->tv_sec = value;
577		992	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
578	if (fd < 0)
579	croak ("illegal fh argument, either not an OS file or read/write mode mismatch");
580
581	return fd;
582	}	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;
583		1004
584	MODULE = IO::AIO PACKAGE = IO::AIO	1005	MODULE = IO::AIO PACKAGE = IO::AIO
585		1006
586	PROTOTYPES: ENABLE	1007	PROTOTYPES: ENABLE
587		1008
…		…
589	{	1010	{
590	static const struct {	1011	static const struct {
591	const char *name;	1012	const char *name;
592	IV iv;	1013	IV iv;
593	} *civ, const_iv[] = {	1014	} *civ, const_iv[] = {
594	# 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 },
595	# define const_eio(name) { # name, (IV) EIO_ ## name },	1017	# define const_eio(name) { # name, (IV) EIO_ ## name },
596	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 */
597	const_iv (ENOSYS , ENOSYS)	1021	const_iv (ENOSYS)
598	const_iv (O_RDONLY, O_RDONLY)	1022	const_iv (EXDEV)
599	const_iv (O_WRONLY, O_WRONLY)	1023	const_iv (EBADR)
600	const_iv (O_CREAT , O_CREAT)	1024
601	const_iv (O_TRUNC , O_TRUNC)	1025	/* for lseek */
602	#ifndef _WIN32	1026	const_iv (SEEK_DATA)
603	const_iv (S_IFIFO , S_IFIFO)	1027	const_iv (SEEK_HOLE)
604	#endif	1028
605	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	1029	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
606	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	1030	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
607	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	1031	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
608	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	1032	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
609	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	1033	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
610	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)
611		1227
612	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1228	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
613	const_eio (SYNC_FILE_RANGE_WRITE)	1229	const_eio (SYNC_FILE_RANGE_WRITE)
614	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)
615		1242
616	const_eio (READDIR_DENTS)	1243	const_eio (READDIR_DENTS)
617	const_eio (READDIR_DIRS_FIRST)	1244	const_eio (READDIR_DIRS_FIRST)
618	const_eio (READDIR_STAT_ORDER)	1245	const_eio (READDIR_STAT_ORDER)
619	const_eio (READDIR_FOUND_UNKNOWN)	1246	const_eio (READDIR_FOUND_UNKNOWN)
…		…
627	const_eio (DT_LNK)	1254	const_eio (DT_LNK)
628	const_eio (DT_SOCK)	1255	const_eio (DT_SOCK)
629	const_eio (DT_WHT)	1256	const_eio (DT_WHT)
630	};	1257	};
631		1258
632	stash = gv_stashpv ("IO::AIO", 1);	1259	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1260	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1261	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1262	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
633		1263
634	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--)
635	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1265	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
636		1266
637	create_respipe ();	1267	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
638		1268
639	if (eio_init (want_poll, done_poll) < 0)	1269	reinit ();
640	croak ("IO::AIO: unable to initialise eio library");
641
642	/* atfork child called in fifo order, so before eio's handler */
643	X_THREAD_ATFORK (0, 0, atfork_child);
644	}	1270	}
645		1271
646	void	1272	void
		1273	reinit ()
		1274	PROTOTYPE:
		1275
		1276	void
647	max_poll_reqs (int nreqs)	1277	max_poll_reqs (unsigned int nreqs)
648	PROTOTYPE: $	1278	PROTOTYPE: $
649	CODE:	1279	CODE:
650	eio_set_max_poll_reqs (nreqs);	1280	eio_set_max_poll_reqs (nreqs);
651		1281
652	void	1282	void
…		…
654	PROTOTYPE: $	1284	PROTOTYPE: $
655	CODE:	1285	CODE:
656	eio_set_max_poll_time (nseconds);	1286	eio_set_max_poll_time (nseconds);
657		1287
658	void	1288	void
659	min_parallel (int nthreads)	1289	min_parallel (unsigned int nthreads)
660	PROTOTYPE: $	1290	PROTOTYPE: $
661	CODE:	1291	CODE:
662	eio_set_min_parallel (nthreads);	1292	eio_set_min_parallel (nthreads);
663		1293
664	void	1294	void
665	max_parallel (int nthreads)	1295	max_parallel (unsigned int nthreads)
666	PROTOTYPE: $	1296	PROTOTYPE: $
667	CODE:	1297	CODE:
668	eio_set_max_parallel (nthreads);	1298	eio_set_max_parallel (nthreads);
669		1299
670	void	1300	void
671	max_idle (int nthreads)	1301	max_idle (unsigned int nthreads)
672	PROTOTYPE: $	1302	PROTOTYPE: $
673	CODE:	1303	CODE:
674	eio_set_max_idle (nthreads);	1304	eio_set_max_idle (nthreads);
675		1305
676	void	1306	void
		1307	idle_timeout (unsigned int seconds)
		1308	PROTOTYPE: $
		1309	CODE:
		1310	eio_set_idle_timeout (seconds);
		1311
		1312	void
677	max_outstanding (int maxreqs)	1313	max_outstanding (unsigned int maxreqs)
678	PROTOTYPE: $	1314	PROTOTYPE: $
679	CODE:	1315	CODE:
680	max_outstanding = maxreqs;	1316	max_outstanding = maxreqs;
681		1317
682	void	1318	void
683	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1319	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
684	PROTOTYPE: $$$;$
685	PPCODE:	1320	PPCODE:
686	{	1321	{
687	dREQ;	1322	dREQ;
688		1323
		1324	req->type = EIO_WD_OPEN;
		1325	req_set_path1 (req, pathname);
		1326
		1327	REQ_SEND;
		1328	}
		1329
		1330	void
		1331	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1332	PPCODE:
		1333	{
		1334	dREQ;
		1335
689	req->type = EIO_OPEN;	1336	req->type = EIO_OPEN;
690	req->sv1 = newSVsv (pathname);	1337	req_set_path1 (req, pathname);
691	req->ptr1 = SvPVbyte_nolen (req->sv1);
692	req->int1 = flags;	1338	req->int1 = flags;
693	req->int2 = mode;	1339	req->int2 = mode;
694		1340
695	REQ_SEND;	1341	REQ_SEND;
696	}	1342	}
697		1343
698	void	1344	void
699	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1345	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
700	PROTOTYPE: $;$
701	ALIAS:	1346	ALIAS:
702	aio_fsync = EIO_FSYNC	1347	aio_fsync = EIO_FSYNC
703	aio_fdatasync = EIO_FDATASYNC	1348	aio_fdatasync = EIO_FDATASYNC
		1349	aio_syncfs = EIO_SYNCFS
704	PPCODE:	1350	PPCODE:
705	{	1351	{
706	int fd = extract_fd (fh, 0);	1352	int fd = s_fileno_croak (fh, 0);
707	dREQ;	1353	dREQ;
708		1354
709	req->type = ix;	1355	req->type = ix;
710	req->sv1 = newSVsv (fh);	1356	req->sv1 = newSVsv (fh);
711	req->int1 = fd;	1357	req->int1 = fd;
712		1358
713	REQ_SEND (req);	1359	REQ_SEND;
714	}	1360	}
715		1361
716	void	1362	void
717	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1363	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
718	PROTOTYPE: $$$$;$
719	PPCODE:	1364	PPCODE:
720	{	1365	{
721	int fd = extract_fd (fh, 0);	1366	int fd = s_fileno_croak (fh, 0);
722	dREQ;	1367	dREQ;
723		1368
724	req->type = EIO_SYNC_FILE_RANGE;	1369	req->type = EIO_SYNC_FILE_RANGE;
725	req->sv1 = newSVsv (fh);	1370	req->sv1 = newSVsv (fh);
726	req->int1 = fd;	1371	req->int1 = fd;
727	req->offs = offset;	1372	req->offs = offset;
728	req->size = nbytes;	1373	req->size = nbytes;
729	req->int2 = flags;	1374	req->int2 = flags;
730		1375
731	REQ_SEND (req);	1376	REQ_SEND;
732	}	1377	}
733		1378
734	void	1379	void
735	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)
736	PROTOTYPE: $;$
737	PPCODE:	1381	PPCODE:
738	{	1382	{
739	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1383	int fd = s_fileno_croak (fh, 0);
740	int fd = extract_fd (fh, 0);
741	dREQ;	1384	dREQ;
742		1385
743	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))
744	{	1405	{
745	int pipefd [2];	1406	int pipefd [2];
746		1407
		1408	if (
		1409	#ifdef _WIN32
		1410	_pipe (pipefd, 1, _O_BINARY) < 0
		1411	#else
747	if (pipe (pipefd) < 0	1412	pipe (pipefd) < 0
748	|| close (pipefd [1]) < 0
749	|| 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	)
750	abort (); /*D*/	1417	abort (); /*D*/
751		1418
752	close_pipe = pipefd [0];	1419	close_fd = pipefd [0];
753	}	1420	}
754		1421
755	req->type = EIO_DUP2;	1422	req->type = EIO_DUP2;
756	req->int1 = close_pipe;	1423	req->int1 = close_fd;
757	req->sv2 = newSVsv (fh);	1424	req->sv2 = newSVsv (fh);
758	req->int2 = fd;	1425	req->int2 = fd;
759		1426
760	REQ_SEND (req);	1427	REQ_SEND;
761	}	1428	}
762		1429
763	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
764	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)
765	ALIAS:	1448	ALIAS:
766	aio_read = EIO_READ	1449	aio_read = EIO_READ
767	aio_write = EIO_WRITE	1450	aio_write = EIO_WRITE
768	PROTOTYPE: $$$$$;$
769	PPCODE:	1451	PPCODE:
770	{	1452	{
771	STRLEN svlen;	1453	STRLEN svlen;
772	int fd = extract_fd (fh, ix == EIO_WRITE);	1454	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
773	char *svptr = SvPVbyte (data, svlen);	1455	char *svptr = SvPVbyte (data, svlen);
774	UV len = SvUV (length);	1456	UV len = SvUV (length);
775		1457
776	if (dataoffset < 0)	1458	if (dataoffset < 0)
777	dataoffset += svlen;	1459	dataoffset += svlen;
…		…
786	len = svlen - dataoffset;	1468	len = svlen - dataoffset;
787	}	1469	}
788	else	1470	else
789	{	1471	{
790	/* read: check type and grow scalar as necessary */	1472	/* read: check type and grow scalar as necessary */
791	SvUPGRADE (data, SVt_PV);	1473	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
792	svptr = SvGROW (data, len + dataoffset + 1);	1474	svptr = sv_grow (data, len + dataoffset + 1);
		1475	else if (SvCUR (data) < len + dataoffset)
		1476	croak ("length + dataoffset outside of scalar, and cannot grow");
793	}	1477	}
794		1478
795	{	1479	{
796	dREQ;	1480	dREQ;
797		1481
…		…
813	REQ_SEND;	1497	REQ_SEND;
814	}	1498	}
815	}	1499	}
816		1500
817	void	1501	void
818	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1502	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
819	PROTOTYPE: $$;$	1503	ALIAS:
		1504	aio_ioctl = EIO_IOCTL
		1505	aio_fcntl = EIO_FCNTL
820	PPCODE:	1506	PPCODE:
821	{	1507	{
822	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	{
823	dREQ;	1548	dREQ;
824		1549
825	req->type = EIO_READLINK;	1550	req->type = ix;
826	req->sv1 = newSVsv (path);	1551	req_set_path1 (req, pathname);
827	req->ptr1 = SvPVbyte_nolen (req->sv1);
828		1552
829	REQ_SEND;	1553	REQ_SEND;
830	}	1554	}
831		1555
832	void	1556	void
833	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)
834	PROTOTYPE: $$$$;$
835	PPCODE:	1558	PPCODE:
836	{	1559	{
837	int ifd = extract_fd (in_fh , 0);	1560	int ifd = s_fileno_croak (in_fh , 0);
838	int ofd = extract_fd (out_fh, 0);	1561	int ofd = s_fileno_croak (out_fh, 1);
839	dREQ;	1562	dREQ;
840		1563
841	req->type = EIO_SENDFILE;	1564	req->type = EIO_SENDFILE;
842	req->sv1 = newSVsv (out_fh);	1565	req->sv1 = newSVsv (out_fh);
843	req->int1 = ofd;	1566	req->int1 = ofd;
…		…
848		1571
849	REQ_SEND;	1572	REQ_SEND;
850	}	1573	}
851		1574
852	void	1575	void
853	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1576	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
854	PROTOTYPE: $$$;$
855	PPCODE:	1577	PPCODE:
856	{	1578	{
857	int fd = extract_fd (fh, 0);	1579	int fd = s_fileno_croak (fh, 0);
858	dREQ;	1580	dREQ;
859		1581
860	req->type = EIO_READAHEAD;	1582	req->type = EIO_READAHEAD;
861	req->sv1 = newSVsv (fh);	1583	req->sv1 = newSVsv (fh);
862	req->int1 = fd;	1584	req->int1 = fd;
…		…
865		1587
866	REQ_SEND;	1588	REQ_SEND;
867	}	1589	}
868		1590
869	void	1591	void
870	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1592	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
871	ALIAS:	1593	ALIAS:
872	aio_stat = EIO_STAT	1594	aio_stat = EIO_STAT
873	aio_lstat = EIO_LSTAT	1595	aio_lstat = EIO_LSTAT
		1596	aio_statvfs = EIO_STATVFS
874	PPCODE:	1597	PPCODE:
875	{	1598	{
876	dREQ;	1599	dREQ;
877		1600
878	req->sv1 = newSVsv (fh_or_path);	1601	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
879
880	if (SvPOK (req->sv1))
881	{
882	req->type = ix;
883	req->ptr1 = SvPVbyte_nolen (req->sv1);
884	}
885	else
886	{
887	req->type = EIO_FSTAT;
888	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
889	}
890		1602
891	REQ_SEND;	1603	REQ_SEND;
892	}	1604	}
893		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
894	void	1622	void
895	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)
896	PPCODE:	1624	PPCODE:
897	{	1625	{
898	dREQ;	1626	dREQ;
899		1627
900	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1628	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
901	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1629	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
902	req->sv1 = newSVsv (fh_or_path);	1630	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
903
904	if (SvPOK (req->sv1))
905	{
906	req->type = EIO_UTIME;
907	req->ptr1 = SvPVbyte_nolen (req->sv1);
908	}
909	else
910	{
911	req->type = EIO_FUTIME;
912	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
913	}
914		1631
915	REQ_SEND;	1632	REQ_SEND;
916	}	1633	}
917		1634
918	void	1635	void
919	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)
920	PPCODE:	1637	PPCODE:
921	{	1638	{
922	dREQ;	1639	dREQ;
923		1640
924	req->sv1 = newSVsv (fh_or_path);
925	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1641	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
926		1642	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
927	if (SvPOK (req->sv1))
928	{
929	req->type = EIO_TRUNCATE;
930	req->ptr1 = SvPVbyte_nolen (req->sv1);
931	}
932	else
933	{
934	req->type = EIO_FTRUNCATE;
935	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
936	}
937		1643
938	REQ_SEND;	1644	REQ_SEND;
939	}	1645	}
940		1646
941	void	1647	void
942	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)
943	ALIAS:
944	aio_chmod = EIO_CHMOD
945	aio_mkdir = EIO_MKDIR
946	PPCODE:	1649	PPCODE:
947	{	1650	{
948	dREQ;	1651	dREQ;
949		1652
950	req->int2 = mode;	1653	req->int2 = mode;
951	req->sv1 = newSVsv (fh_or_path);	1654	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
952
953	if (SvPOK (req->sv1))
954	{
955	req->type = ix;
956	req->ptr1 = SvPVbyte_nolen (req->sv1);
957	}
958	else
959	{
960	req->type = EIO_FCHMOD;
961	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
962	}
963		1655
964	REQ_SEND;	1656	REQ_SEND;
965	}	1657	}
966		1658
967	void	1659	void
968	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)
969	PPCODE:	1661	PPCODE:
970	{	1662	{
971	dREQ;	1663	dREQ;
972		1664
973	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1665	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
974	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1666	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
975	req->sv1 = newSVsv (fh_or_path);	1667	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
976
977	if (SvPOK (req->sv1))
978	{
979	req->type = EIO_CHOWN;
980	req->ptr1 = SvPVbyte_nolen (req->sv1);
981	}
982	else
983	{
984	req->type = EIO_FCHOWN;
985	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
986	}
987		1668
988	REQ_SEND;	1669	REQ_SEND;
989	}	1670	}
990		1671
991	void	1672	void
992	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1673	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
993	PPCODE:	1674	PPCODE:
994	{	1675	{
995	dREQ;	1676	dREQ;
996		1677
997	req->type = EIO_READDIR;	1678	req->type = EIO_READDIR;
998	req->sv1 = newSVsv (pathname);
999	req->ptr1 = SvPVbyte_nolen (req->sv1);
1000	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1679	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1001		1680
1002	if (flags & EIO_READDIR_DENTS)	1681	if (flags & EIO_READDIR_DENTS)
1003	req->int1 |= EIO_READDIR_CUSTOM2;	1682	req->int1 |= EIO_READDIR_CUSTOM2;
1004		1683
		1684	req_set_path1 (req, pathname);
		1685
1005	REQ_SEND;	1686	REQ_SEND;
1006	}	1687	}
1007		1688
1008	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
1009	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1703	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1010	ALIAS:	1704	ALIAS:
1011	aio_unlink = EIO_UNLINK	1705	aio_unlink = EIO_UNLINK
1012	aio_rmdir = EIO_RMDIR	1706	aio_rmdir = EIO_RMDIR
1013	aio_readdir = EIO_READDIR	1707	aio_readdir = EIO_READDIR
1014	PPCODE:	1708	PPCODE:
1015	{	1709	{
1016	dREQ;	1710	dREQ;
1017		1711
1018	req->type = ix;	1712	req->type = ix;
1019	req->sv1 = newSVsv (pathname);	1713	req_set_path1 (req, pathname);
1020	req->ptr1 = SvPVbyte_nolen (req->sv1);
1021		1714
1022	REQ_SEND;	1715	REQ_SEND;
1023	}	1716	}
1024		1717
1025	void	1718	void
1026	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1719	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1027	ALIAS:	1720	ALIAS:
1028	aio_link = EIO_LINK	1721	aio_link = EIO_LINK
1029	aio_symlink = EIO_SYMLINK	1722	aio_symlink = EIO_SYMLINK
1030	aio_rename = EIO_RENAME	1723	aio_rename = EIO_RENAME
1031	PPCODE:	1724	PPCODE:
1032	{	1725	{
		1726	eio_wd wd2 = 0;
1033	dREQ;	1727	dREQ;
1034		1728
1035	req->type = ix;	1729	req->type = ix;
1036	req->sv1 = newSVsv (oldpath);	1730	req_set_path1 (req, oldpath);
1037	req->ptr1 = SvPVbyte_nolen (req->sv1);	1731	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1038	req->sv2 = newSVsv (newpath);	1732	req->int3 = (long)wd2;
1039	req->ptr2 = SvPVbyte_nolen (req->sv2);
1040		1733
1041	REQ_SEND;	1734	REQ_SEND;
1042	}	1735	}
1043		1736
1044	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
1045	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)
1046	PPCODE:	1755	PPCODE:
1047	{	1756	{
1048	dREQ;	1757	dREQ;
1049		1758
1050	req->type = EIO_MKNOD;	1759	req->type = EIO_MKNOD;
1051	req->sv1 = newSVsv (pathname);
1052	req->ptr1 = SvPVbyte_nolen (req->sv1);
1053	req->int2 = (mode_t)mode;	1760	req->int2 = (mode_t)mode;
1054	req->offs = dev;	1761	req->offs = dev;
		1762	req_set_path1 (req, pathname);
1055		1763
1056	REQ_SEND;	1764	REQ_SEND;
1057	}	1765	}
1058		1766
1059	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
1060	aio_busy (double delay, SV *callback=&PL_sv_undef)	1906	aio_busy (double delay, SV *callback = &PL_sv_undef)
1061	PPCODE:	1907	PPCODE:
1062	{	1908	{
1063	dREQ;	1909	dREQ;
1064		1910
1065	req->type = EIO_BUSY;	1911	req->type = EIO_BUSY;
…		…
1067		1913
1068	REQ_SEND;	1914	REQ_SEND;
1069	}	1915	}
1070		1916
1071	void	1917	void
1072	aio_group (SV *callback=&PL_sv_undef)	1918	aio_group (SV *callback = &PL_sv_undef)
1073	PROTOTYPE: ;$
1074	PPCODE:	1919	PPCODE:
1075	{	1920	{
1076	dREQ;	1921	dREQ;
1077		1922
1078	req->type = EIO_GROUP;	1923	req->type = EIO_GROUP;
1079		1924
		1925	PUTBACK;
1080	req_submit (req);	1926	req_submit (req);
		1927	SPAGAIN;
		1928
1081	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1929	XPUSHs (req_sv (req, aio_grp_stash));
1082	}	1930	}
1083		1931
1084	void	1932	void
1085	aio_nop (SV *callback=&PL_sv_undef)	1933	aio_nop (SV *callback = &PL_sv_undef)
1086	ALIAS:	1934	ALIAS:
1087	aio_nop = EIO_NOP	1935	aio_nop = EIO_NOP
1088	aio_sync = EIO_SYNC	1936	aio_sync = EIO_SYNC
1089	PPCODE:	1937	PPCODE:
1090	{	1938	{
…		…
1094		1942
1095	REQ_SEND;	1943	REQ_SEND;
1096	}	1944	}
1097		1945
1098	int	1946	int
1099	aioreq_pri (int pri = 0)	1947	aioreq_pri (int pri = NO_INIT)
1100	PROTOTYPE: ;$
1101	CODE:	1948	CODE:
1102	RETVAL = next_pri;	1949	RETVAL = next_pri;
1103	if (items > 0)	1950	if (items > 0)
1104	{	1951	{
1105	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1952	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1117	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1964	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1118	next_pri = nice;	1965	next_pri = nice;
1119		1966
1120	void	1967	void
1121	flush ()	1968	flush ()
1122	PROTOTYPE:
1123	CODE:	1969	CODE:
1124	while (eio_nreqs ())	1970	while (eio_nreqs ())
1125	{	1971	{
1126	poll_wait ();	1972	poll_wait ();
1127	poll_cb ();	1973	poll_cb ();
1128	}	1974	}
1129		1975
1130	int	1976	int
1131	poll()	1977	poll ()
1132	PROTOTYPE:
1133	CODE:	1978	CODE:
1134	poll_wait ();	1979	poll_wait ();
1135	RETVAL = poll_cb ();	1980	RETVAL = poll_cb ();
1136	OUTPUT:	1981	OUTPUT:
1137	RETVAL	1982	RETVAL
1138		1983
1139	int	1984	int
1140	poll_fileno()	1985	poll_fileno ()
1141	PROTOTYPE:
1142	CODE:	1986	CODE:
1143	RETVAL = respipe [0];	1987	RETVAL = s_epipe_fd (&respipe);
1144	OUTPUT:	1988	OUTPUT:
1145	RETVAL	1989	RETVAL
1146		1990
1147	int	1991	int
1148	poll_cb(...)	1992	poll_cb (...)
1149	PROTOTYPE:	1993	PROTOTYPE:
1150	CODE:	1994	CODE:
1151	RETVAL = poll_cb ();	1995	RETVAL = poll_cb ();
1152	OUTPUT:	1996	OUTPUT:
1153	RETVAL	1997	RETVAL
1154		1998
1155	void	1999	void
1156	poll_wait()	2000	poll_wait ()
1157	PROTOTYPE:
1158	CODE:	2001	CODE:
1159	poll_wait ();	2002	poll_wait ();
1160		2003
1161	int	2004	int
1162	nreqs()	2005	nreqs ()
1163	PROTOTYPE:
1164	CODE:	2006	CODE:
1165	RETVAL = eio_nreqs ();	2007	RETVAL = eio_nreqs ();
1166	OUTPUT:	2008	OUTPUT:
1167	RETVAL	2009	RETVAL
1168		2010
1169	int	2011	int
1170	nready()	2012	nready ()
1171	PROTOTYPE:
1172	CODE:	2013	CODE:
1173	RETVAL = eio_nready ();	2014	RETVAL = eio_nready ();
1174	OUTPUT:	2015	OUTPUT:
1175	RETVAL	2016	RETVAL
1176		2017
1177	int	2018	int
1178	npending()	2019	npending ()
1179	PROTOTYPE:
1180	CODE:	2020	CODE:
1181	RETVAL = eio_npending ();	2021	RETVAL = eio_npending ();
1182	OUTPUT:	2022	OUTPUT:
1183	RETVAL	2023	RETVAL
1184		2024
1185	int	2025	int
1186	nthreads()	2026	nthreads ()
1187	PROTOTYPE:
1188	CODE:	2027	CODE:
1189	RETVAL = eio_nthreads ();	2028	RETVAL = eio_nthreads ();
1190	OUTPUT:	2029	OUTPUT:
1191	RETVAL	2030	RETVAL
1192		2031
1193	int	2032	int
1194	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)
1195	PROTOTYPE: $$$$
1196	CODE:	2034	CODE:
1197	{
1198	#if _XOPEN_SOURCE >= 600
1199	RETVAL = posix_fadvise (fh, offset, length, advice);	2035	RETVAL = posix_fadvise (fh, offset, length, advice);
1200	#else
1201	RETVAL = errno = ENOSYS;
1202	#endif
1203	}
1204	OUTPUT:	2036	OUTPUT:
1205	RETVAL	2037	RETVAL
1206		2038
1207	ssize_t	2039	IV
1208	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	2040	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1209	PROTOTYPE: $$$$
1210	CODE:	2041	CODE:
1211	eio_sendfile_sync (ofh, ifh, offset, count);	2042	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		2043	OUTPUT:
		2044	RETVAL
		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	}
1212		2383
1213	void _on_next_submit (SV *cb)	2384	void _on_next_submit (SV *cb)
1214	CODE:	2385	CODE:
1215	SvREFCNT_dec (on_next_submit);	2386	SvREFCNT_dec (on_next_submit);
1216	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2387	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1217		2388
1218	PROTOTYPES: DISABLE	2389	PROTOTYPES: DISABLE
1219		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
1220	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2419	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1221		2420
1222	void	2421	void
1223	cancel (aio_req_ornot req)	2422	cancel (aio_req_ornot req)
1224	CODE:	2423	CODE:
1225	eio_cancel (req);	2424	eio_cancel (req);
1226		2425
1227	void	2426	void
1228	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2427	cb (aio_req_ornot req, SV *callback = NO_INIT)
1229	PPCODE:	2428	PPCODE:
1230	{	2429	{
1231	if (GIMME_V != G_VOID)	2430	if (GIMME_V != G_VOID)
1232	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);
1233		2432
…		…
1298	limit (aio_req grp, int limit)	2497	limit (aio_req grp, int limit)
1299	CODE:	2498	CODE:
1300	eio_grp_limit (grp, limit);	2499	eio_grp_limit (grp, limit);
1301		2500
1302	void	2501	void
1303	feed (aio_req grp, SV *callback=&PL_sv_undef)	2502	feed (aio_req grp, SV *callback = &PL_sv_undef)
1304	CODE:	2503	CODE:
1305	{	2504	{
1306	SvREFCNT_dec (grp->sv2);	2505	SvREFCNT_dec (grp->sv2);
1307	grp->sv2 = newSVsv (callback);	2506	grp->sv2 = newSVsv (callback);
1308	grp->feed = aio_grp_feed;	2507	grp->feed = aio_grp_feed;

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