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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.125 by root, Thu Jun 19 09:05:43 2008 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 SvVAL64 SvIV
81	#else	82	#else
82	# define SvVAL64 SvNV
83	#endif
84		83
85	static HV *stash;	84	#include <sys/time.h>
		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
		92	#endif
		93
		94	/*****************************************************************************/
		95
		96	#if __GNUC__ >= 3
		97	# define expect(expr,value) __builtin_expect ((expr),(value))
		98	#else
		99	# define expect(expr,value) (expr)
		100	#endif
		101
		102	#define expect_false(expr) expect ((expr) != 0, 0)
		103	#define expect_true(expr) expect ((expr) != 0, 1)
		104
		105	/*****************************************************************************/
		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
86	typedef SV SV8; /* byte-sv, used for argument-checking */	124	typedef SV SV8; /* byte-sv, used for argument-checking */
		125	typedef int aio_rfd; /* read file desriptor */
		126	typedef int aio_wfd; /* write file descriptor */
87		127
88	#define AIO_REQ_KLASS "IO::AIO::REQ"	128	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
89	#define AIO_GRP_KLASS "IO::AIO::GRP"
90		129
91	#define EIO_REQ_MEMBERS \	130	#define EIO_REQ_MEMBERS \
92	SV *callback; \	131	SV *callback; \
93	SV *sv1, *sv2; \	132	SV *sv1, *sv2; \
		133	SV *sv3, *sv4; \
94	STRLEN stroffset; \	134	STRLEN stroffset; \
95	SV *self;	135	SV *self;
96		136
97	#define EIO_NO_WRAPPERS 1	137	#define EIO_NO_WRAPPERS 1
98		138
99	#include "libeio/eio.h"	139	#include "libeio/eio.h"
100		140
101	static int req_invoke (eio_req *req);	141	static int req_invoke (eio_req *req);
102	#define EIO_FINISH(req) req_invoke (req)	142	#define EIO_FINISH(req) req_invoke (req)
103	static void aio_grp_feed (eio_req *grp);
104	#define EIO_FEED(req) aio_grp_feed (req)
105	static void req_destroy (eio_req *grp);	143	static void req_destroy (eio_req *grp);
106	#define EIO_DESTROY(req) req_destroy (req)	144	#define EIO_DESTROY(req) req_destroy (req)
		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	/*****************************************************************************/
107		376
108	enum {	377	enum {
109	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	378	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
110	};	379	};
111		380
112	#include "libeio/eio.c"
113
114	typedef eio_req *aio_req;	381	typedef eio_req *aio_req;
115	typedef eio_req *aio_req_ornot;	382	typedef eio_req *aio_req_ornot;
		383	typedef eio_wd aio_wd;
116		384
117	static SV *on_next_submit;	385	static SV *on_next_submit;
118	static int next_pri = EIO_PRI_DEFAULT;	386	static int next_pri = EIO_PRI_DEFAULT;
119	static int max_outstanding;	387	static int max_outstanding;
120		388
121	static int respipe_osf [2], respipe [2] = { -1, -1 };	389	static s_epipe respipe;
122		390
123	static void req_destroy (aio_req req);	391	static void req_destroy (aio_req req);
124	static void req_cancel (aio_req req);	392	static void req_cancel (aio_req req);
125		393
126	static void want_poll (void)	394	static void
		395	want_poll (void)
127	{	396	{
128	/* write a dummy byte to the pipe so fh becomes ready */	397	/* write a dummy byte to the pipe so fh becomes ready */
129	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	398	s_epipe_signal (&respipe);
130	}	399	}
131		400
132	static void done_poll (void)	401	static void
		402	done_poll (void)
133	{	403	{
134	/* read any signals sent by the worker threads */	404	/* read any signals sent by the worker threads */
135	char buf [4];	405	s_epipe_drain (&respipe);
136	while (respipe_read (respipe [0], buf, 4) == 4)
137	;
138	}	406	}
139		407
140	/* must be called at most once */	408	/* must be called at most once */
141	static SV *req_sv (aio_req req, const char *klass)	409	static SV *
		410	req_sv (aio_req req, HV *stash)
142	{	411	{
143	if (!req->self)	412	if (!req->self)
144	{	413	{
145	req->self = (SV *)newHV ();	414	req->self = (SV *)newHV ();
146	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	415	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
147	}	416	}
148		417
149	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	418	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
150	}	419	}
151		420
152	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)
153	{	429	{
154	MAGIC *mg;	430	MAGIC *mg;
155		431
156	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")))
157	croak ("object of class " AIO_REQ_KLASS " expected");	437	croak ("object of class IO::AIO::REQ expected");
158		438
159	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	439	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
160		440
161	return mg ? (aio_req)mg->mg_ptr : 0;	441	return mg ? (aio_req)mg->mg_ptr : 0;
162	}	442	}
163		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
164	static void aio_grp_feed (aio_req grp)	481	aio_grp_feed (aio_req grp)
165	{	482	{
166	if (grp->sv2 && SvOK (grp->sv2))	483	if (grp->sv2 && SvOK (grp->sv2))
167	{	484	{
168	dSP;	485	dSP;
169		486
170	ENTER;	487	ENTER;
171	SAVETMPS;	488	SAVETMPS;
172	PUSHMARK (SP);	489	PUSHMARK (SP);
173	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	490	XPUSHs (req_sv (grp, aio_grp_stash));
174	PUTBACK;	491	PUTBACK;
175	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	492	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
176	SPAGAIN;	493	SPAGAIN;
177	FREETMPS;	494	FREETMPS;
178	LEAVE;	495	LEAVE;
179	}	496	}
180	}	497	}
181		498
		499	static void
182	static void req_submit (eio_req *req)	500	req_submit (eio_req *req)
183	{	501	{
184	eio_submit (req);	502	eio_submit (req);
185		503
186	if (on_next_submit)	504	if (expect_false (on_next_submit))
187	{	505	{
188	dSP;	506	dSP;
189	SV *cb = sv_2mortal (on_next_submit);	507	SV *cb = sv_2mortal (on_next_submit);
190		508
191	on_next_submit = 0;	509	on_next_submit = 0;
…		…
194	PUTBACK;	512	PUTBACK;
195	call_sv (cb, G_DISCARD | G_EVAL);	513	call_sv (cb, G_DISCARD | G_EVAL);
196	}	514	}
197	}	515	}
198		516
		517	static int
199	static int req_invoke (eio_req *req)	518	req_invoke (eio_req *req)
200	{	519	{
201	dSP;
202
203	if (req->flags & FLAG_SV2_RO_OFF)	520	if (req->flags & FLAG_SV2_RO_OFF)
204	SvREADONLY_off (req->sv2);	521	SvREADONLY_off (req->sv2);
205		522
206	if (!EIO_CANCELLED (req) && SvOK (req->callback))	523	if (!EIO_CANCELLED (req) && req->callback)
207	{	524	{
		525	dSP;
		526	static SV *sv_result_cache; /* caches the result integer SV */
		527	SV *sv_result;
		528
208	ENTER;	529	ENTER;
209	SAVETMPS;	530	SAVETMPS;
210	PUSHMARK (SP);	531	PUSHMARK (SP);
211	EXTEND (SP, 1);	532	EXTEND (SP, 1);
212		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
213	switch (req->type)	547	switch (req->type)
214	{	548	{
		549	case EIO_WD_OPEN:
		550	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		551	break;
		552
215	case EIO_READDIR:	553	case EIO_READDIR:
216	{	554	{
217	SV *rv = &PL_sv_undef;	555	SV *rv = &PL_sv_undef;
218		556
219	if (req->result >= 0)	557	if (req->result >= 0)
220	{	558	{
221	int i;	559	int i;
222	char *buf = req->ptr2;	560	char *names = (char *)req->ptr2;
		561	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
223	AV *av = newAV ();	562	AV *av = newAV ();
224		563
225	av_extend (av, req->result - 1);	564	av_extend (av, req->result - 1);
226		565
227	for (i = 0; i < req->result; ++i)	566	for (i = 0; i < req->result; ++i)
228	{	567	{
229	SV *sv = newSVpv (buf, 0);	568	if (req->int1 & EIO_READDIR_DENTS)
		569	{
		570	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
230		571
		572	if (req->int1 & EIO_READDIR_CUSTOM2)
		573	{
		574	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		575	AV *avent = newAV ();
		576
		577	av_extend (avent, 2);
		578
		579	if (!sv_type [ent->type])
		580	{
		581	sv_type [ent->type] = newSViv (ent->type);
		582	SvREADONLY_on (sv_type [ent->type]);
		583	}
		584
		585	av_store (avent, 0, namesv);
		586	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		587	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		588
		589	av_store (av, i, newRV_noinc ((SV *)avent));
		590	}
		591	else
231	av_store (av, i, sv);	592	av_store (av, i, namesv);
		593
		594	++ent;
		595	}
		596	else
		597	{
		598	SV *name = newSVpv (names, 0);
		599	av_store (av, i, name);
232	buf += SvCUR (sv) + 1;	600	names += SvCUR (name) + 1;
		601	}
233	}	602	}
234		603
235	rv = sv_2mortal (newRV_noinc ((SV *)av));	604	rv = sv_2mortal (newRV_noinc ((SV *)av));
236	}	605	}
237		606
238	PUSHs (rv);	607	PUSHs (rv);
		608
		609	if (req->int1 & EIO_READDIR_CUSTOM1)
		610	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
239	}	611	}
240	break;	612	break;
241		613
242	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:
243	{	620	{
244	/* convert fd to fh */
245	SV *fh = &PL_sv_undef;	621	SV *rv = &PL_sv_undef;
246		622
		623	#ifndef _WIN32
247	if (req->result >= 0)	624	if (req->result >= 0)
248	{	625	{
		626	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
249	GV *gv = (GV *)sv_newmortal ();	627	HV *hv = newHV ();
250	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	628	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
251	char sym [64];	629	* chooses to make it a struct.
252	int symlen;
253		630	*/
254	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	631	unsigned long fsid = 0;
255	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));
256		633
257	symlen = snprintf (	634	rv = sv_2mortal (newRV_noinc ((SV *)hv));
258	sym,
259	sizeof (sym),
260	"%s&=%d",
261	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
262	req->result
263	);
264		635
265	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	636	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
266	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);
267	}	647	}
		648	#endif
268		649
269	PUSHs (fh);	650	PUSHs (rv);
270	}	651	}
		652
271	break;	653	break;
272		654
273	case EIO_GROUP:	655	case EIO_GROUP:
274	req->int1 = 2; /* mark group as finished */	656	req->int1 = 2; /* mark group as finished */
275		657
…		…
287	case EIO_NOP:	669	case EIO_NOP:
288	case EIO_BUSY:	670	case EIO_BUSY:
289	break;	671	break;
290		672
291	case EIO_READLINK:	673	case EIO_READLINK:
		674	case EIO_REALPATH:
292	if (req->result > 0)	675	if (req->result > 0)
293	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	676	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
294	break;	677	break;
295		678
296	case EIO_STAT:	679	case EIO_STAT:
297	case EIO_LSTAT:	680	case EIO_LSTAT:
298	case EIO_FSTAT:	681	case EIO_FSTAT:
299	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	682	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		683
300	PL_laststatval = req->result;	684	if (!(PL_laststatval = req->result))
		685	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
301	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	686	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
302	PUSHs (sv_2mortal (newSViv (req->result)));	687
		688	PUSHs (sv_result);
303	break;	689	break;
304		690
		691	case EIO_SEEK:
		692	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		693	break;
		694
305	case EIO_READ:	695	case EIO_READ:
		696	{
306	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));
307	*SvEND (req->sv2) = 0;	698	*SvEND (req->sv2) = 0;
308	PUSHs (sv_2mortal (newSViv (req->result)));	699	SvPOK_only (req->sv2);
		700	SvSETMAGIC (req->sv2);
		701	PUSHs (sv_result);
		702	}
309	break;	703	break;
310		704
311	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 */
312	if (req->result > 0)	770	if (req->result > 0)
313	req->result = 0;	771	SvIV_set (sv_result, 0);
314	/* FALLTHROUGH */	772	/* FALLTHROUGH */
315		773
316	default:	774	default:
317	PUSHs (sv_2mortal (newSViv (req->result)));	775	PUSHs (sv_result);
318	break;	776	break;
319	}	777	}
320		778
321	errno = req->errorno;	779	errno = req->errorno;
322		780
323	PUTBACK;	781	PUTBACK;
324	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	782	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
325	SPAGAIN;	783	SPAGAIN;
326		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
327	FREETMPS;	790	FREETMPS;
328	LEAVE;	791	LEAVE;
329		792
330	PUTBACK;	793	PUTBACK;
331	}	794	}
332		795
333	return !!SvTRUE (ERRSV);	796	return !!SvTRUE (ERRSV);
334	}	797	}
335		798
		799	static void
336	static void req_destroy (aio_req req)	800	req_destroy (aio_req req)
337	{	801	{
338	if (req->self)	802	if (req->self)
339	{	803	{
340	sv_unmagic (req->self, PERL_MAGIC_ext);	804	sv_unmagic (req->self, PERL_MAGIC_ext);
341	SvREFCNT_dec (req->self);	805	SvREFCNT_dec (req->self);
342	}	806	}
343		807
344	SvREFCNT_dec (req->sv1);	808	SvREFCNT_dec (req->sv1);
345	SvREFCNT_dec (req->sv2);	809	SvREFCNT_dec (req->sv2);
		810	SvREFCNT_dec (req->sv3);
		811	SvREFCNT_dec (req->sv4);
346	SvREFCNT_dec (req->callback);	812	SvREFCNT_dec (req->callback);
347		813
348	Safefree (req);	814	free (req);
349	}	815	}
350		816
		817	static void
351	static void req_cancel_subs (aio_req grp)	818	req_cancel_subs (aio_req grp)
352	{	819	{
353	aio_req sub;
354
355	if (grp->type != EIO_GROUP)	820	if (grp->type != EIO_GROUP)
356	return;	821	return;
357		822
358	SvREFCNT_dec (grp->sv2);	823	SvREFCNT_dec (grp->sv2);
359	grp->sv2 = 0;	824	grp->sv2 = 0;
360		825
361	eio_grp_cancel (grp);	826	eio_grp_cancel (grp);
362	}	827	}
363		828
364	#ifdef USE_SOCKETS_AS_HANDLES	829	static void ecb_cold
365	# define TO_SOCKET(x) (win32_get_osfhandle (x))	830	create_respipe (void)
366	#else	831	{
367	# define TO_SOCKET(x) (x)	832	if (s_epipe_renew (&respipe))
368	#endif	833	croak ("IO::AIO: unable to initialize result pipe");
		834	}
369		835
370	static void	836	static void
371	create_respipe (void)	837	poll_wait (void)
372	{	838	{
373	int old_readfd = respipe [0];
374
375	if (respipe [1] >= 0)
376	respipe_close (TO_SOCKET (respipe [1]));
377
378	#ifdef _WIN32
379	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
380	#else
381	if (pipe (respipe))
382	#endif
383	croak ("unable to initialize result pipe");
384
385	if (old_readfd >= 0)
386	{
387	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
388	croak ("unable to initialize result pipe(2)");
389
390	respipe_close (respipe [0]);
391	respipe [0] = old_readfd;
392	}
393
394	#ifdef _WIN32
395	int arg = 1;
396	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
397	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
398	#else
399	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
400	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
401	#endif
402	croak ("unable to initialize result pipe(3)");
403
404	respipe_osf [0] = TO_SOCKET (respipe [0]);
405	respipe_osf [1] = TO_SOCKET (respipe [1]);
406	}
407
408	static void poll_wait (void)
409	{
410	fd_set rfd;
411
412	while (eio_nreqs ())	839	while (eio_nreqs ())
413	{	840	{
414	int size;	841	int size;
415		842
416	X_LOCK (reslock);	843	X_LOCK (EIO_POOL->reslock);
417	size = res_queue.size;	844	size = EIO_POOL->res_queue.size;
418	X_UNLOCK (reslock);	845	X_UNLOCK (EIO_POOL->reslock);
419		846
420	if (size)	847	if (size)
421	return;	848	return;
422		849
423	etp_maybe_start_thread ();	850	etp_maybe_start_thread (EIO_POOL);
424		851
425	FD_ZERO (&rfd);	852	s_epipe_wait (&respipe);
426	FD_SET (respipe [0], &rfd);
427
428	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
429	}	853	}
430	}	854	}
431		855
432	static int poll_cb (void)	856	static int
		857	poll_cb (void)
433	{	858	{
434	for (;;)	859	for (;;)
435	{	860	{
436	int res = eio_poll ();	861	int res = eio_poll ();
437		862
…		…
443		868
444	poll_wait ();	869	poll_wait ();
445	}	870	}
446	}	871	}
447		872
448	static void atfork_child (void)	873	static void ecb_cold
		874	reinit (void)
449	{	875	{
450	create_respipe ();	876	create_respipe ();
		877
		878	if (eio_init (want_poll, done_poll) < 0)
		879	croak ("IO::AIO: unable to initialise eio library");
		880	}
		881
		882	/*****************************************************************************/
		883
		884	static SV *
		885	get_cb (SV *cb_sv)
		886	{
		887	SvGETMAGIC (cb_sv);
		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	{
		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;
451	}	909	}
452		910
453	#define dREQ \	911	#define dREQ \
454	aio_req req; \	912	aio_req req = dreq (callback); \
455	int req_pri = next_pri; \
456	next_pri = EIO_PRI_DEFAULT; \
457	\
458	if (SvOK (callback) && !SvROK (callback)) \
459	croak ("callback must be undef or of reference type"); \
460	\
461	Newz (0, req, 1, eio_req); \
462	if (!req) \
463	croak ("out of memory during eio_req allocation"); \
464	\
465	req->callback = newSVsv (callback); \
466	req->pri = req_pri
467		913
468	#define REQ_SEND \	914	#define REQ_SEND \
		915	PUTBACK; \
469	req_submit (req); \	916	req_submit (req); \
		917	SPAGAIN; \
470	\	918	\
471	if (GIMME_V != G_VOID) \	919	if (GIMME_V != G_VOID) \
472	XPUSHs (req_sv (req, AIO_REQ_KLASS));	920	XPUSHs (req_sv (req, aio_req_stash));
473		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
474	MODULE = IO::AIO PACKAGE = IO::AIO	1005	MODULE = IO::AIO PACKAGE = IO::AIO
475		1006
476	PROTOTYPES: ENABLE	1007	PROTOTYPES: ENABLE
477		1008
478	BOOT:	1009	BOOT:
479	{	1010	{
		1011	static const struct {
		1012	const char *name;
		1013	IV iv;
		1014	} *civ, const_iv[] = {
		1015	# define const_niv(name, value) { # name, (IV) value },
		1016	# define const_iv(name) { # name, (IV) name },
		1017	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1018
		1019	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1020	/* the first block can be undef if missing */
		1021	const_iv (ENOSYS)
		1022	const_iv (EXDEV)
		1023	const_iv (EBADR)
		1024
		1025	/* for lseek */
		1026	const_iv (SEEK_DATA)
		1027	const_iv (SEEK_HOLE)
		1028
		1029	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1030	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1031	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1032	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1033	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		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)
		1227
		1228	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		1229	const_eio (SYNC_FILE_RANGE_WRITE)
		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)
		1242
		1243	const_eio (READDIR_DENTS)
		1244	const_eio (READDIR_DIRS_FIRST)
		1245	const_eio (READDIR_STAT_ORDER)
		1246	const_eio (READDIR_FOUND_UNKNOWN)
		1247
		1248	const_eio (DT_UNKNOWN)
		1249	const_eio (DT_FIFO)
		1250	const_eio (DT_CHR)
		1251	const_eio (DT_DIR)
		1252	const_eio (DT_BLK)
		1253	const_eio (DT_REG)
		1254	const_eio (DT_LNK)
		1255	const_eio (DT_SOCK)
		1256	const_eio (DT_WHT)
		1257	};
		1258
480	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);
481		1263
482	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1264	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
483	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1265	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
484	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
485	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
486	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
487	#ifndef _WIN32
488	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
489	#endif
490		1266
491	create_respipe ();	1267	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
492		1268
493	if (eio_init (want_poll, done_poll) < 0)	1269	reinit ();
494	croak ("IO::AIO: unable to initialise eio library");
495
496	/* atfork child called in fifo order, so before eio's handler */
497	X_THREAD_ATFORK (0, 0, atfork_child);
498	}	1270	}
499		1271
500	void	1272	void
		1273	reinit ()
		1274	PROTOTYPE:
		1275
		1276	void
501	max_poll_reqs (int nreqs)	1277	max_poll_reqs (unsigned int nreqs)
502	PROTOTYPE: $	1278	PROTOTYPE: $
503	CODE:	1279	CODE:
504	eio_set_max_poll_reqs (nreqs);	1280	eio_set_max_poll_reqs (nreqs);
505		1281
506	void	1282	void
…		…
508	PROTOTYPE: $	1284	PROTOTYPE: $
509	CODE:	1285	CODE:
510	eio_set_max_poll_time (nseconds);	1286	eio_set_max_poll_time (nseconds);
511		1287
512	void	1288	void
513	min_parallel (int nthreads)	1289	min_parallel (unsigned int nthreads)
514	PROTOTYPE: $	1290	PROTOTYPE: $
515	CODE:	1291	CODE:
516	eio_set_min_parallel (nthreads);	1292	eio_set_min_parallel (nthreads);
517		1293
518	void	1294	void
519	max_parallel (int nthreads)	1295	max_parallel (unsigned int nthreads)
520	PROTOTYPE: $	1296	PROTOTYPE: $
521	CODE:	1297	CODE:
522	eio_set_max_parallel (nthreads);	1298	eio_set_max_parallel (nthreads);
523		1299
524	void	1300	void
525	max_idle (int nthreads)	1301	max_idle (unsigned int nthreads)
526	PROTOTYPE: $	1302	PROTOTYPE: $
527	CODE:	1303	CODE:
528	eio_set_max_idle (nthreads);	1304	eio_set_max_idle (nthreads);
529		1305
530	void	1306	void
		1307	idle_timeout (unsigned int seconds)
		1308	PROTOTYPE: $
		1309	CODE:
		1310	eio_set_idle_timeout (seconds);
		1311
		1312	void
531	max_outstanding (int maxreqs)	1313	max_outstanding (unsigned int maxreqs)
532	PROTOTYPE: $	1314	PROTOTYPE: $
533	CODE:	1315	CODE:
534	max_outstanding = maxreqs;	1316	max_outstanding = maxreqs;
535		1317
536	void	1318	void
537	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1319	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
538	PROTOTYPE: $$$;$
539	PPCODE:	1320	PPCODE:
540	{	1321	{
541	dREQ;	1322	dREQ;
542		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
543	req->type = EIO_OPEN;	1336	req->type = EIO_OPEN;
544	req->sv1 = newSVsv (pathname);	1337	req_set_path1 (req, pathname);
545	req->ptr1 = SvPVbyte_nolen (req->sv1);
546	req->int1 = flags;	1338	req->int1 = flags;
547	req->int2 = mode;	1339	req->int2 = mode;
548		1340
549	REQ_SEND;	1341	REQ_SEND;
550	}	1342	}
551		1343
552	void	1344	void
553	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1345	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
554	PROTOTYPE: $;$
555	ALIAS:	1346	ALIAS:
556	aio_fsync = EIO_FSYNC	1347	aio_fsync = EIO_FSYNC
557	aio_fdatasync = EIO_FDATASYNC	1348	aio_fdatasync = EIO_FDATASYNC
		1349	aio_syncfs = EIO_SYNCFS
558	PPCODE:	1350	PPCODE:
559	{	1351	{
		1352	int fd = s_fileno_croak (fh, 0);
560	dREQ;	1353	dREQ;
561		1354
562	req->type = ix;	1355	req->type = ix;
563	req->sv1 = newSVsv (fh);	1356	req->sv1 = newSVsv (fh);
564	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1357	req->int1 = fd;
565		1358
566	REQ_SEND (req);	1359	REQ_SEND;
567	}	1360	}
568		1361
569	void	1362	void
570	aio_close (SV *fh, 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)
571	PROTOTYPE: $;$
572	PPCODE:	1364	PPCODE:
573	{	1365	{
574	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1366	int fd = s_fileno_croak (fh, 0);
575	dREQ;	1367	dREQ;
576		1368
577	if (close_pipe < 0)	1369	req->type = EIO_SYNC_FILE_RANGE;
		1370	req->sv1 = newSVsv (fh);
		1371	req->int1 = fd;
		1372	req->offs = offset;
		1373	req->size = nbytes;
		1374	req->int2 = flags;
		1375
		1376	REQ_SEND;
		1377	}
		1378
		1379	void
		1380	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
		1381	PPCODE:
		1382	{
		1383	int fd = s_fileno_croak (fh, 0);
		1384	dREQ;
		1385
		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))
578	{	1405	{
579	int pipefd [2];	1406	int pipefd [2];
580		1407
		1408	if (
		1409	#ifdef _WIN32
		1410	_pipe (pipefd, 1, _O_BINARY) < 0
		1411	#else
581	if (pipe (pipefd) < 0	1412	pipe (pipefd) < 0
582	|| close (pipefd [1]) < 0
583	|| 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	)
584	abort (); /*D*/	1417	abort (); /*D*/
585		1418
586	close_pipe = pipefd [0];	1419	close_fd = pipefd [0];
587	}	1420	}
588		1421
589	req->type = EIO_DUP2;	1422	req->type = EIO_DUP2;
590	req->int1 = close_pipe;	1423	req->int1 = close_fd;
591	req->sv2 = newSVsv (fh);	1424	req->sv2 = newSVsv (fh);
592	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1425	req->int2 = fd;
593		1426
594	REQ_SEND (req);	1427	REQ_SEND;
595	}	1428	}
596		1429
597	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
598	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)
599	ALIAS:	1448	ALIAS:
600	aio_read = EIO_READ	1449	aio_read = EIO_READ
601	aio_write = EIO_WRITE	1450	aio_write = EIO_WRITE
602	PROTOTYPE: $$$$$;$
603	PPCODE:	1451	PPCODE:
604	{	1452	{
605	STRLEN svlen;	1453	STRLEN svlen;
		1454	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
606	char *svptr = SvPVbyte (data, svlen);	1455	char *svptr = SvPVbyte (data, svlen);
607	UV len = SvUV (length);	1456	UV len = SvUV (length);
608
609	SvUPGRADE (data, SVt_PV);
610	SvPOK_on (data);
611		1457
612	if (dataoffset < 0)	1458	if (dataoffset < 0)
613	dataoffset += svlen;	1459	dataoffset += svlen;
614		1460
615	if (dataoffset < 0 || dataoffset > svlen)	1461	if (dataoffset < 0 || dataoffset > svlen)
…		…
621	if (!SvOK (length) || len + dataoffset > svlen)	1467	if (!SvOK (length) || len + dataoffset > svlen)
622	len = svlen - dataoffset;	1468	len = svlen - dataoffset;
623	}	1469	}
624	else	1470	else
625	{	1471	{
626	/* read: grow scalar as necessary */	1472	/* read: check type and grow scalar as necessary */
		1473	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
627	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");
628	}	1477	}
629
630	if (len < 0)
631	croak ("length must not be negative");
632		1478
633	{	1479	{
634	dREQ;	1480	dREQ;
635		1481
636	req->type = ix;	1482	req->type = ix;
637	req->sv1 = newSVsv (fh);	1483	req->sv1 = newSVsv (fh);
638	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1484	req->int1 = fd;
639	: IoOFP (sv_2io (fh)));
640	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1485	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
641	req->size = len;	1486	req->size = len;
642	req->sv2 = SvREFCNT_inc (data);	1487	req->sv2 = SvREFCNT_inc (data);
643	req->ptr2 = (char *)svptr + dataoffset;	1488	req->ptr2 = (char *)svptr + dataoffset;
644	req->stroffset = dataoffset;	1489	req->stroffset = dataoffset;
…		…
652	REQ_SEND;	1497	REQ_SEND;
653	}	1498	}
654	}	1499	}
655		1500
656	void	1501	void
657	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1502	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
658	PROTOTYPE: $$;$	1503	ALIAS:
		1504	aio_ioctl = EIO_IOCTL
		1505	aio_fcntl = EIO_FCNTL
659	PPCODE:	1506	PPCODE:
660	{	1507	{
661	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	{
662	dREQ;	1548	dREQ;
663		1549
664	req->type = EIO_READLINK;	1550	req->type = ix;
665	req->sv1 = newSVsv (path);	1551	req_set_path1 (req, pathname);
666	req->ptr1 = SvPVbyte_nolen (req->sv1);
667		1552
668	REQ_SEND;	1553	REQ_SEND;
669	}	1554	}
670		1555
671	void	1556	void
672	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV 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)
673	PROTOTYPE: $$$$;$
674	PPCODE:	1558	PPCODE:
675	{	1559	{
		1560	int ifd = s_fileno_croak (in_fh , 0);
		1561	int ofd = s_fileno_croak (out_fh, 1);
676	dREQ;	1562	dREQ;
677		1563
678	req->type = EIO_SENDFILE;	1564	req->type = EIO_SENDFILE;
679	req->sv1 = newSVsv (out_fh);	1565	req->sv1 = newSVsv (out_fh);
680	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1566	req->int1 = ofd;
681	req->sv2 = newSVsv (in_fh);	1567	req->sv2 = newSVsv (in_fh);
682	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1568	req->int2 = ifd;
683	req->offs = SvVAL64 (in_offset);	1569	req->offs = in_offset;
684	req->size = length;	1570	req->size = length;
685		1571
686	REQ_SEND;	1572	REQ_SEND;
687	}	1573	}
688		1574
689	void	1575	void
690	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1576	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
691	PROTOTYPE: $$$;$
692	PPCODE:	1577	PPCODE:
693	{	1578	{
		1579	int fd = s_fileno_croak (fh, 0);
694	dREQ;	1580	dREQ;
695		1581
696	req->type = EIO_READAHEAD;	1582	req->type = EIO_READAHEAD;
697	req->sv1 = newSVsv (fh);	1583	req->sv1 = newSVsv (fh);
698	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1584	req->int1 = fd;
699	req->offs = SvVAL64 (offset);	1585	req->offs = offset;
700	req->size = length;	1586	req->size = length;
701		1587
702	REQ_SEND;	1588	REQ_SEND;
703	}	1589	}
704		1590
705	void	1591	void
706	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1592	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
707	ALIAS:	1593	ALIAS:
708	aio_stat = EIO_STAT	1594	aio_stat = EIO_STAT
709	aio_lstat = EIO_LSTAT	1595	aio_lstat = EIO_LSTAT
		1596	aio_statvfs = EIO_STATVFS
710	PPCODE:	1597	PPCODE:
711	{	1598	{
712	dREQ;	1599	dREQ;
713		1600
714	req->sv1 = newSVsv (fh_or_path);	1601	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
715
716	if (SvPOK (req->sv1))
717	{
718	req->type = ix;
719	req->ptr1 = SvPVbyte_nolen (req->sv1);
720	}
721	else
722	{
723	req->type = EIO_FSTAT;
724	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
725	}
726		1602
727	REQ_SEND;	1603	REQ_SEND;
728	}	1604	}
729		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
730	void	1622	void
731	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)
732	PPCODE:	1624	PPCODE:
733	{	1625	{
734	dREQ;	1626	dREQ;
735		1627
736	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1628	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
737	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1629	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
738	req->sv1 = newSVsv (fh_or_path);	1630	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
739
740	if (SvPOK (req->sv1))
741	{
742	req->type = EIO_UTIME;
743	req->ptr1 = SvPVbyte_nolen (req->sv1);
744	}
745	else
746	{
747	req->type = EIO_FUTIME;
748	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
749	}
750		1631
751	REQ_SEND;	1632	REQ_SEND;
752	}	1633	}
753		1634
754	void	1635	void
755	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)
756	PPCODE:	1637	PPCODE:
757	{	1638	{
758	dREQ;	1639	dREQ;
759		1640
760	req->sv1 = newSVsv (fh_or_path);
761	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1641	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
762		1642	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
763	if (SvPOK (req->sv1))
764	{
765	req->type = EIO_TRUNCATE;
766	req->ptr1 = SvPVbyte_nolen (req->sv1);
767	}
768	else
769	{
770	req->type = EIO_FTRUNCATE;
771	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
772	}
773		1643
774	REQ_SEND;	1644	REQ_SEND;
775	}	1645	}
776		1646
777	void	1647	void
778	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)
779	ALIAS:
780	aio_chmod = EIO_CHMOD
781	aio_mkdir = EIO_MKDIR
782	PPCODE:	1649	PPCODE:
783	{	1650	{
784	dREQ;	1651	dREQ;
785		1652
786	req->int2 = mode;	1653	req->int2 = mode;
787	req->sv1 = newSVsv (fh_or_path);	1654	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
788
789	if (SvPOK (req->sv1))
790	{
791	req->type = ix;
792	req->ptr1 = SvPVbyte_nolen (req->sv1);
793	}
794	else
795	{
796	req->type = EIO_FCHMOD;
797	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
798	}
799		1655
800	REQ_SEND;	1656	REQ_SEND;
801	}	1657	}
802		1658
803	void	1659	void
804	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)
805	PPCODE:	1661	PPCODE:
806	{	1662	{
807	dREQ;	1663	dREQ;
808		1664
809	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1665	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
810	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1666	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
811	req->sv1 = newSVsv (fh_or_path);	1667	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
812
813	if (SvPOK (req->sv1))
814	{
815	req->type = EIO_CHOWN;
816	req->ptr1 = SvPVbyte_nolen (req->sv1);
817	}
818	else
819	{
820	req->type = EIO_FCHOWN;
821	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
822	}
823		1668
824	REQ_SEND;	1669	REQ_SEND;
825	}	1670	}
826		1671
827	void	1672	void
		1673	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
		1674	PPCODE:
		1675	{
		1676	dREQ;
		1677
		1678	req->type = EIO_READDIR;
		1679	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1680
		1681	if (flags & EIO_READDIR_DENTS)
		1682	req->int1 |= EIO_READDIR_CUSTOM2;
		1683
		1684	req_set_path1 (req, pathname);
		1685
		1686	REQ_SEND;
		1687	}
		1688
		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
828	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1703	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
829	ALIAS:	1704	ALIAS:
830	aio_unlink = EIO_UNLINK	1705	aio_unlink = EIO_UNLINK
831	aio_rmdir = EIO_RMDIR	1706	aio_rmdir = EIO_RMDIR
832	aio_readdir = EIO_READDIR	1707	aio_readdir = EIO_READDIR
833	PPCODE:	1708	PPCODE:
834	{	1709	{
835	dREQ;	1710	dREQ;
836		1711
837	req->type = ix;	1712	req->type = ix;
838	req->sv1 = newSVsv (pathname);	1713	req_set_path1 (req, pathname);
839	req->ptr1 = SvPVbyte_nolen (req->sv1);
840		1714
841	REQ_SEND;	1715	REQ_SEND;
842	}	1716	}
843		1717
844	void	1718	void
845	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1719	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
846	ALIAS:	1720	ALIAS:
847	aio_link = EIO_LINK	1721	aio_link = EIO_LINK
848	aio_symlink = EIO_SYMLINK	1722	aio_symlink = EIO_SYMLINK
849	aio_rename = EIO_RENAME	1723	aio_rename = EIO_RENAME
850	PPCODE:	1724	PPCODE:
851	{	1725	{
		1726	eio_wd wd2 = 0;
852	dREQ;	1727	dREQ;
853		1728
854	req->type = ix;	1729	req->type = ix;
855	req->sv1 = newSVsv (oldpath);	1730	req_set_path1 (req, oldpath);
856	req->ptr1 = SvPVbyte_nolen (req->sv1);	1731	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
857	req->sv2 = newSVsv (newpath);	1732	req->int3 = (long)wd2;
858	req->ptr2 = SvPVbyte_nolen (req->sv2);
859		1733
860	REQ_SEND;	1734	REQ_SEND;
861	}	1735	}
862		1736
863	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
864	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)
865	PPCODE:	1755	PPCODE:
866	{	1756	{
867	dREQ;	1757	dREQ;
868		1758
869	req->type = EIO_MKNOD;	1759	req->type = EIO_MKNOD;
870	req->sv1 = newSVsv (pathname);
871	req->ptr1 = SvPVbyte_nolen (req->sv1);
872	req->int2 = (mode_t)mode;	1760	req->int2 = (mode_t)mode;
873	req->offs = dev;	1761	req->offs = dev;
		1762	req_set_path1 (req, pathname);
874		1763
875	REQ_SEND;	1764	REQ_SEND;
876	}	1765	}
877		1766
878	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
879	aio_busy (double delay, SV *callback=&PL_sv_undef)	1906	aio_busy (double delay, SV *callback = &PL_sv_undef)
880	PPCODE:	1907	PPCODE:
881	{	1908	{
882	dREQ;	1909	dREQ;
883		1910
884	req->type = EIO_BUSY;	1911	req->type = EIO_BUSY;
…		…
886		1913
887	REQ_SEND;	1914	REQ_SEND;
888	}	1915	}
889		1916
890	void	1917	void
891	aio_group (SV *callback=&PL_sv_undef)	1918	aio_group (SV *callback = &PL_sv_undef)
892	PROTOTYPE: ;$
893	PPCODE:	1919	PPCODE:
894	{	1920	{
895	dREQ;	1921	dREQ;
896		1922
897	req->type = EIO_GROUP;	1923	req->type = EIO_GROUP;
898		1924
		1925	PUTBACK;
899	eio_submit (req);	1926	req_submit (req);
		1927	SPAGAIN;
		1928
900	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1929	XPUSHs (req_sv (req, aio_grp_stash));
901	}	1930	}
902		1931
903	void	1932	void
904	aio_nop (SV *callback=&PL_sv_undef)	1933	aio_nop (SV *callback = &PL_sv_undef)
905	ALIAS:	1934	ALIAS:
906	aio_nop = EIO_NOP	1935	aio_nop = EIO_NOP
907	aio_sync = EIO_SYNC	1936	aio_sync = EIO_SYNC
908	PPCODE:	1937	PPCODE:
909	{	1938	{
…		…
913		1942
914	REQ_SEND;	1943	REQ_SEND;
915	}	1944	}
916		1945
917	int	1946	int
918	aioreq_pri (int pri = 0)	1947	aioreq_pri (int pri = NO_INIT)
919	PROTOTYPE: ;$
920	CODE:	1948	CODE:
921	RETVAL = next_pri;	1949	RETVAL = next_pri;
922	if (items > 0)	1950	if (items > 0)
923	{	1951	{
924	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1952	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
936	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1964	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
937	next_pri = nice;	1965	next_pri = nice;
938		1966
939	void	1967	void
940	flush ()	1968	flush ()
941	PROTOTYPE:
942	CODE:	1969	CODE:
943	while (eio_nreqs ())	1970	while (eio_nreqs ())
944	{	1971	{
945	poll_wait ();	1972	poll_wait ();
946	poll_cb ();	1973	poll_cb ();
947	}	1974	}
948		1975
949	int	1976	int
950	poll()	1977	poll ()
951	PROTOTYPE:
952	CODE:	1978	CODE:
953	poll_wait ();	1979	poll_wait ();
954	RETVAL = poll_cb ();	1980	RETVAL = poll_cb ();
955	OUTPUT:	1981	OUTPUT:
956	RETVAL	1982	RETVAL
957		1983
958	int	1984	int
959	poll_fileno()	1985	poll_fileno ()
960	PROTOTYPE:
961	CODE:	1986	CODE:
962	RETVAL = respipe [0];	1987	RETVAL = s_epipe_fd (&respipe);
963	OUTPUT:	1988	OUTPUT:
964	RETVAL	1989	RETVAL
965		1990
966	int	1991	int
967	poll_cb(...)	1992	poll_cb (...)
968	PROTOTYPE:	1993	PROTOTYPE:
969	CODE:	1994	CODE:
970	RETVAL = poll_cb ();	1995	RETVAL = poll_cb ();
971	OUTPUT:	1996	OUTPUT:
972	RETVAL	1997	RETVAL
973		1998
974	void	1999	void
975	poll_wait()	2000	poll_wait ()
976	PROTOTYPE:
977	CODE:	2001	CODE:
978	poll_wait ();	2002	poll_wait ();
979		2003
980	int	2004	int
981	nreqs()	2005	nreqs ()
982	PROTOTYPE:
983	CODE:	2006	CODE:
984	RETVAL = eio_nreqs ();	2007	RETVAL = eio_nreqs ();
985	OUTPUT:	2008	OUTPUT:
986	RETVAL	2009	RETVAL
987		2010
988	int	2011	int
989	nready()	2012	nready ()
990	PROTOTYPE:
991	CODE:	2013	CODE:
992	RETVAL = eio_nready ();	2014	RETVAL = eio_nready ();
993	OUTPUT:	2015	OUTPUT:
994	RETVAL	2016	RETVAL
995		2017
996	int	2018	int
997	npending()	2019	npending ()
998	PROTOTYPE:
999	CODE:	2020	CODE:
1000	RETVAL = eio_npending ();	2021	RETVAL = eio_npending ();
1001	OUTPUT:	2022	OUTPUT:
1002	RETVAL	2023	RETVAL
1003		2024
1004	int	2025	int
1005	nthreads()	2026	nthreads ()
1006	PROTOTYPE:
1007	CODE:	2027	CODE:
1008	RETVAL = eio_nthreads ();	2028	RETVAL = eio_nthreads ();
1009	OUTPUT:	2029	OUTPUT:
1010	RETVAL	2030	RETVAL
1011		2031
		2032	int
		2033	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		2034	CODE:
		2035	RETVAL = posix_fadvise (fh, offset, length, advice);
		2036	OUTPUT:
		2037	RETVAL
		2038
		2039	IV
		2040	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		2041	CODE:
		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	}
		2383
1012	void _on_next_submit (SV *cb)	2384	void _on_next_submit (SV *cb)
1013	CODE:	2385	CODE:
1014	SvREFCNT_dec (on_next_submit);	2386	SvREFCNT_dec (on_next_submit);
1015	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2387	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1016		2388
1017	PROTOTYPES: DISABLE	2389	PROTOTYPES: DISABLE
1018		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
1019	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2419	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1020		2420
1021	void	2421	void
1022	cancel (aio_req_ornot req)	2422	cancel (aio_req_ornot req)
1023	CODE:	2423	CODE:
1024	eio_cancel (req);	2424	eio_cancel (req);
1025		2425
1026	void	2426	void
1027	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2427	cb (aio_req_ornot req, SV *callback = NO_INIT)
1028	CODE:	2428	PPCODE:
		2429	{
		2430	if (GIMME_V != G_VOID)
		2431	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		2432
		2433	if (items > 1)
		2434	{
		2435	SV *cb_cv = get_cb (callback);
		2436
1029	SvREFCNT_dec (req->callback);	2437	SvREFCNT_dec (req->callback);
1030	req->callback = newSVsv (callback);	2438	req->callback = SvREFCNT_inc (cb_cv);
		2439	}
		2440	}
1031		2441
1032	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	2442	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1033		2443
1034	void	2444	void
1035	add (aio_req grp, ...)	2445	add (aio_req grp, ...)
…		…
1067	AV *av;	2477	AV *av;
1068		2478
1069	grp->errorno = errno;	2479	grp->errorno = errno;
1070		2480
1071	av = newAV ();	2481	av = newAV ();
		2482	av_extend (av, items - 1);
1072		2483
1073	for (i = 1; i < items; ++i )	2484	for (i = 1; i < items; ++i )
1074	av_push (av, newSVsv (ST (i)));	2485	av_push (av, newSVsv (ST (i)));
1075		2486
1076	SvREFCNT_dec (grp->sv1);	2487	SvREFCNT_dec (grp->sv1);
…		…
1086	limit (aio_req grp, int limit)	2497	limit (aio_req grp, int limit)
1087	CODE:	2498	CODE:
1088	eio_grp_limit (grp, limit);	2499	eio_grp_limit (grp, limit);
1089		2500
1090	void	2501	void
1091	feed (aio_req grp, SV *callback=&PL_sv_undef)	2502	feed (aio_req grp, SV *callback = &PL_sv_undef)
1092	CODE:	2503	CODE:
1093	{	2504	{
1094	SvREFCNT_dec (grp->sv2);	2505	SvREFCNT_dec (grp->sv2);
1095	grp->sv2 = newSVsv (callback);	2506	grp->sv2 = newSVsv (callback);
		2507	grp->feed = aio_grp_feed;
1096		2508
1097	if (grp->int2 <= 0)	2509	if (grp->int2 <= 0)
1098	grp->int2 = 2;	2510	grp->int2 = 2;
1099		2511
1100	eio_grp_limit (grp, grp->int2);	2512	eio_grp_limit (grp, grp->int2);

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