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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.150 by root, Wed Jul 1 08:11:24 2009 UTC vs.
Revision 1.258 by root, Wed Jul 18 00:57:55 2018 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8
		9	#if !defined mg_findext
		10	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		11	#endif
8		12
9	#include <stddef.h>	13	#include <stddef.h>
10	#include <stdlib.h>	14	#include <stdlib.h>
11	#include <errno.h>	15	#include <errno.h>
12	#include <sys/types.h>	16	#include <sys/types.h>
13	#include <sys/stat.h>	17	#include <sys/stat.h>
14	#include <limits.h>	18	#include <limits.h>
15	#include <fcntl.h>	19	#include <fcntl.h>
16	#include <sched.h>	20	#include <sched.h>
17		21
		22	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		23	# include <sys/mman.h>
		24	#endif
		25
		26	/* the incompetent fool that created musl keeps __linux__, refuses
		27	* to implement any linux standard apis, and also has no way to test
		28	* for his broken iplementation. don't complain to me if this fails
		29	* for you.
		30	*/
		31	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		32	# include <linux/fs.h>
		33	# ifdef FS_IOC_FIEMAP
		34	# include <linux/types.h>
		35	# include <linux/fiemap.h>
		36	# define HAVE_FIEMAP 1
		37	# endif
		38	#endif
		39
18	/* perl namespace pollution */	40	/* perl namespace pollution */
19	#undef VERSION	41	#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		42
70	/* perl stupidly overrides readdir and maybe others */	43	/* perl stupidly overrides readdir and maybe others */
71	/* with thread-unsafe versions, imagine that :( */	44	/* with thread-unsafe versions, imagine that :( */
72	#undef readdir	45	#undef readdir
73	#undef opendir	46	#undef opendir
74	#undef closedir	47	#undef closedir
75		48
		49	#ifdef _WIN32
		50
		51	// perl overrides all those nice libc functions
		52
		53	#undef malloc
		54	#undef free
		55	#undef open
		56	#undef read
		57	#undef write
		58	#undef send
		59	#undef recv
		60	#undef stat
		61	#undef lstat
		62	#undef fstat
		63	#undef truncate
		64	#undef ftruncate
		65	#undef open
		66	#undef link
		67	#undef close
		68	#undef unlink
		69	#undef mkdir
		70	#undef rmdir
		71	#undef rename
		72	#undef lseek
		73	#undef opendir
		74	#undef readdir
		75	#undef closedir
		76	#undef chmod
		77	#undef fchmod
		78	#undef dup
		79	#undef dup2
		80	#undef abort
		81	#undef pipe
		82
		83	#define EIO_STRUCT_STAT struct _stati64
76	#define EIO_STRUCT_STAT Stat_t	84	#define EIO_STRUCT_STATI64
77		85
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	86	#else
84	# define VAL64 NV	87
85	# define SvVAL64 SvNV	88	#include <sys/time.h>
86	# define newSVval64 newSVnv	89	#include <sys/select.h>
		90	#include <unistd.h>
		91	#include <utime.h>
		92	#include <signal.h>
		93
		94	#define EIO_STRUCT_STAT Stat_t
		95
87	#endif	96	#endif
88		97
89	/*****************************************************************************/	98	/*****************************************************************************/
90		99
91	#if __GNUC__ >= 3	100	#if __GNUC__ >= 3
…		…
97	#define expect_false(expr) expect ((expr) != 0, 0)	106	#define expect_false(expr) expect ((expr) != 0, 0)
98	#define expect_true(expr) expect ((expr) != 0, 1)	107	#define expect_true(expr) expect ((expr) != 0, 1)
99		108
100	/*****************************************************************************/	109	/*****************************************************************************/
101		110
102	static HV *stash;	111	#include "libeio/config.h"
		112
		113	#include "schmorp.h"
		114
		115	#if HAVE_EVENTFD
		116	# include <sys/eventfd.h>
		117	#endif
		118
		119	#if HAVE_TIMERFD
		120	# include <sys/timerfd.h>
		121	#endif
		122
		123	#if HAVE_RLIMITS
		124	#include <sys/time.h>
		125	#include <sys/resource.h>
		126	#endif
		127
103	typedef SV SV8; /* byte-sv, used for argument-checking */	128	typedef SV SV8; /* byte-sv, used for argument-checking */
104	typedef int aio_rfd; /* read file desriptor */	129	typedef int aio_rfd; /* read file desriptor */
105	typedef int aio_wfd; /* write file descriptor */	130	typedef int aio_wfd; /* write file descriptor */
106		131
107	#define AIO_REQ_KLASS "IO::AIO::REQ"	132	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
108	#define AIO_GRP_KLASS "IO::AIO::GRP"
109		133
110	#define EIO_REQ_MEMBERS \	134	#define EIO_REQ_MEMBERS \
111	SV *callback; \	135	SV *callback; \
112	SV *sv1, *sv2; \	136	SV *sv1, *sv2; \
		137	SV *sv3, *sv4; \
113	STRLEN stroffset; \	138	STRLEN stroffset; \
114	SV *self;	139	SV *self;
115		140
116	#define EIO_NO_WRAPPERS 1	141	#define EIO_NO_WRAPPERS 1
117		142
118	#include "libeio/eio.h"	143	#include "libeio/eio.h"
119
120	#ifndef POSIX_FADV_NORMAL
121	# define POSIX_FADV_NORMAL 0
122	# define NO_FADVISE 1
123	#endif
124
125	#ifndef POSIX_FADV_SEQUENTIAL
126	# define POSIX_FADV_SEQUENTIAL 0
127	#endif
128
129	#ifndef POSIX_FADV_RANDOM
130	# define POSIX_FADV_RANDOM 0
131	#endif
132
133	#ifndef POSIX_FADV_NOREUSE
134	# define POSIX_FADV_NOREUSE 0
135	#endif
136
137	#ifndef POSIX_FADV_WILLNEED
138	# define POSIX_FADV_WILLNEED 0
139	#endif
140
141	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0
143	#endif
144		144
145	static int req_invoke (eio_req *req);	145	static int req_invoke (eio_req *req);
146	#define EIO_FINISH(req) req_invoke (req)	146	#define EIO_FINISH(req) req_invoke (req)
147	static void req_destroy (eio_req *grp);	147	static void req_destroy (eio_req *grp);
148	#define EIO_DESTROY(req) req_destroy (req)	148	#define EIO_DESTROY(req) req_destroy (req)
149		149
		150	#include "libeio/eio.c"
		151
		152	#if !HAVE_POSIX_FADVISE
		153	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		154	#endif
		155
		156	#if !HAVE_POSIX_MADVISE
		157	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		158	#endif
		159
		160	#ifndef MAP_ANONYMOUS
		161	# ifdef MAP_ANON
		162	# define MAP_ANONYMOUS MAP_ANON
		163	# else
		164	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		165	# endif
		166	#endif
		167
		168	/* defines all sorts of constants to 0 unless they are already defined */
		169	/* also provides const_iv_ and const_niv_ macros for them */
		170	#include "def0.h"
		171
		172	#ifndef makedev
		173	# define makedev(maj,min) (((maj) << 8) | (min))
		174	#endif
		175	#ifndef major
		176	# define major(dev) ((dev) >> 8)
		177	#endif
		178	#ifndef minor
		179	# define minor(dev) ((dev) & 0xff)
		180	#endif
		181
		182	#if PAGESIZE <= 0
		183	# define PAGESIZE sysconf (_SC_PAGESIZE)
		184	#endif
		185
		186	/*****************************************************************************/
		187
		188	#if !_POSIX_MAPPED_FILES
		189	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		190	# define munmap(addr,length) EIO_ENOSYS ()
		191	#endif
		192
		193	#if !_POSIX_MEMORY_PROTECTION
		194	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		195	#endif
		196
		197	#if !MREMAP_MAYMOVE
		198	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		199	#endif
		200
		201	#define FOREIGN_MAGIC PERL_MAGIC_ext
		202
		203	static int ecb_cold
		204	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		205	{
		206	int old_errno = errno;
		207	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		208	errno = old_errno;
		209
		210	mg->mg_obj = 0; /* just in case */
		211
		212	SvREADONLY_off (sv);
		213
		214	if (SvPVX (sv) != mg->mg_ptr)
		215	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		216
		217	SvCUR_set (sv, 0);
		218	SvPVX (sv) = 0;
		219	SvOK_off (sv);
		220
		221	return 0;
		222	}
		223
		224	static MGVTBL mmap_vtbl = {
		225	0, 0, 0, 0, mmap_free
		226	};
		227
		228	static int ecb_cold
		229	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		230	{
		231	free (mg->mg_ptr);
		232	mg->mg_obj = 0; /* just in case */
		233
		234	SvREADONLY_off (sv);
		235
		236	if (SvPVX (sv) != mg->mg_ptr)
		237	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		238
		239	SvCUR_set (sv, 0);
		240	SvPVX (sv) = 0;
		241	SvOK_off (sv);
		242
		243	return 0;
		244	}
		245
		246	static MGVTBL sysfree_vtbl = {
		247	0, 0, 0, 0, sysfree_free
		248	};
		249
		250	/*****************************************************************************/
		251
		252	/* helper: set scalar to foreign ptr with custom free */
		253	static void
		254	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		255	{
		256	sv_force_normal (sv);
		257
		258	/* we store the length in mg_obj, as namlen is I32 :/ */
		259	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		260	->mg_obj = (SV *)length;
		261
		262	SvUPGRADE (sv, SVt_PV); /* nop... */
		263
		264	if (SvLEN (sv))
		265	Safefree (SvPVX (sv));
		266
		267	SvPVX (sv) = (char *)addr;
		268	SvCUR_set (sv, length);
		269	SvLEN_set (sv, 0);
		270	SvPOK_only (sv);
		271	}
		272
		273	static void
		274	sv_clear_foreign (SV *sv)
		275	{
		276	/* todo: iterate over magic and only free ours, but of course */
		277	/* the perl5porters will call that (correct) behaviour buggy */
		278	sv_unmagic (sv, FOREIGN_MAGIC);
		279	}
		280
		281	/*****************************************************************************/
		282
		283	static void
		284	fiemap (eio_req *req)
		285	{
		286	req->result = -1;
		287
		288	#if HAVE_FIEMAP
		289	/* assume some c99 */
		290	struct fiemap *fiemap = 0;
		291	size_t end_offset;
		292	int count = req->int3;
		293
		294	req->flags |= EIO_FLAG_PTR1_FREE;
		295
		296	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		297	/* increase in 3.5kb steps */
		298	if (count < 0)
		299	count = 8;
		300
		301	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		302	errno = ENOMEM;
		303	if (!fiemap)
		304	return;
		305
		306	req->ptr1 = fiemap;
		307
		308	fiemap->fm_start = req->offs;
		309	fiemap->fm_length = req->size;
		310	fiemap->fm_flags = req->int2;
		311	fiemap->fm_extent_count = count;
		312
		313	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		314	return;
		315
		316	if (req->int3 >= 0 /* not autosizing */
		317	|| !fiemap->fm_mapped_extents /* no more extents */
		318	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		319	goto done;
		320
		321	/* else we have to loop -
		322	* it would be tempting (actually I tried that first) to just query the
		323	* number of extents needed, but linux often feels like not returning all
		324	* extents, without telling us it left any out. this complicates
		325	* this quite a bit.
		326	*/
		327
		328	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		329
		330	for (;;)
		331	{
		332	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		333	char scratch[3072];
		334	struct fiemap *incmap = (struct fiemap *)scratch;
		335
		336	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		337	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		338	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		339	incmap->fm_flags = fiemap->fm_flags;
		340	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		341
		342	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		343	return;
		344
		345	if (!incmap->fm_mapped_extents)
		346	goto done;
		347
		348	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		349	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		350	errno = ENOMEM;
		351	if (!fiemap)
		352	return;
		353
		354	req->ptr1 = fiemap;
		355
		356	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		357	{
		358	struct fiemap_extent *e = incmap->fm_extents + count;
		359
		360	if (e->fe_logical + e->fe_length >= end_offset)
		361	goto done;
		362
		363	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		364
		365	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		366	goto done;
		367
		368	}
		369	}
		370
		371	done:
		372	req->result = 0;
		373
		374	#else
		375	errno = ENOSYS;
		376	#endif
		377	}
		378
		379	/*****************************************************************************/
		380
150	enum {	381	enum {
151	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	382	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
152	};	383	};
153		384
154	#include "libeio/eio.c"
155
156	typedef eio_req *aio_req;	385	typedef eio_req *aio_req;
157	typedef eio_req *aio_req_ornot;	386	typedef eio_req *aio_req_ornot;
		387	typedef eio_wd aio_wd;
158		388
159	static SV *on_next_submit;	389	static SV *on_next_submit;
160	static int next_pri = EIO_PRI_DEFAULT;	390	static int next_pri = EIO_PRI_DEFAULT;
161	static int max_outstanding;	391	static int max_outstanding;
162		392
163	static int respipe_osf [2], respipe [2] = { -1, -1 };	393	static s_epipe respipe;
164		394
165	static void req_destroy (aio_req req);	395	static void req_destroy (aio_req req);
166	static void req_cancel (aio_req req);	396	static void req_cancel (aio_req req);
167		397
168	static void want_poll (void)	398	static void
		399	want_poll (void)
169	{	400	{
170	/* write a dummy byte to the pipe so fh becomes ready */	401	/* write a dummy byte to the pipe so fh becomes ready */
171	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	402	s_epipe_signal (&respipe);
172	}	403	}
173		404
174	static void done_poll (void)	405	static void
		406	done_poll (void)
175	{	407	{
176	/* read any signals sent by the worker threads */	408	/* read any signals sent by the worker threads */
177	char buf [4];	409	s_epipe_drain (&respipe);
178	while (respipe_read (respipe [0], buf, 4) == 4)
179	;
180	}	410	}
181		411
182	/* must be called at most once */	412	/* must be called at most once */
183	static SV *req_sv (aio_req req, const char *klass)	413	static SV *
		414	req_sv (aio_req req, HV *stash)
184	{	415	{
185	if (!req->self)	416	if (!req->self)
186	{	417	{
187	req->self = (SV *)newHV ();	418	req->self = (SV *)newHV ();
188	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	419	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
189	}	420	}
190		421
191	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	422	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
192	}	423	}
193		424
194	static aio_req SvAIO_REQ (SV *sv)	425	static SV *
		426	newSVaio_wd (aio_wd wd)
		427	{
		428	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		429	}
		430
		431	static aio_req
		432	SvAIO_REQ (SV *sv)
195	{	433	{
196	MAGIC *mg;	434	MAGIC *mg;
197		435
198	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	436	if (!SvROK (sv)
		437	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		438	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		439	&& SvSTASH (SvRV (sv)) != aio_req_stash
		440	&& !sv_derived_from (sv, "IO::AIO::REQ")))
199	croak ("object of class " AIO_REQ_KLASS " expected");	441	croak ("object of class IO::AIO::REQ expected");
200		442
201	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	443	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
202		444
203	return mg ? (aio_req)mg->mg_ptr : 0;	445	return mg ? (aio_req)mg->mg_ptr : 0;
204	}	446	}
205		447
		448	static aio_wd
		449	SvAIO_WD (SV *sv)
		450	{
		451	if (!SvROK (sv)
		452	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		453	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		454	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		455
		456	return (aio_wd)(long)SvIVX (SvRV (sv));
		457	}
		458
		459	static SV *
		460	newmortalFH (int fd, int flags)
		461	{
		462	if (fd < 0)
		463	return &PL_sv_undef;
		464
		465	GV *gv = (GV *)sv_newmortal ();
		466	char sym[64];
		467	int symlen;
		468
		469	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		470	gv_init (gv, aio_stash, sym, symlen, 0);
		471
		472	symlen = snprintf (
		473	sym,
		474	sizeof (sym),
		475	"%s&=%d",
		476	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		477	fd
		478	);
		479
		480	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		481	? (SV *)gv : &PL_sv_undef;
		482	}
		483
		484	static void
206	static void aio_grp_feed (aio_req grp)	485	aio_grp_feed (aio_req grp)
207	{	486	{
208	if (grp->sv2 && SvOK (grp->sv2))	487	if (grp->sv2 && SvOK (grp->sv2))
209	{	488	{
210	dSP;	489	dSP;
211		490
212	ENTER;	491	ENTER;
213	SAVETMPS;	492	SAVETMPS;
214	PUSHMARK (SP);	493	PUSHMARK (SP);
215	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	494	XPUSHs (req_sv (grp, aio_grp_stash));
216	PUTBACK;	495	PUTBACK;
217	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	496	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
218	SPAGAIN;	497	SPAGAIN;
219	FREETMPS;	498	FREETMPS;
220	LEAVE;	499	LEAVE;
221	}	500	}
222	}	501	}
223		502
		503	static void
224	static void req_submit (eio_req *req)	504	req_submit (eio_req *req)
225	{	505	{
226	eio_submit (req);	506	eio_submit (req);
227		507
228	if (expect_false (on_next_submit))	508	if (expect_false (on_next_submit))
229	{	509	{
…		…
236	PUTBACK;	516	PUTBACK;
237	call_sv (cb, G_DISCARD | G_EVAL);	517	call_sv (cb, G_DISCARD | G_EVAL);
238	}	518	}
239	}	519	}
240		520
		521	static int
241	static int req_invoke (eio_req *req)	522	req_invoke (eio_req *req)
242	{	523	{
243	dSP;
244
245	if (req->flags & FLAG_SV2_RO_OFF)	524	if (req->flags & FLAG_SV2_RO_OFF)
246	SvREADONLY_off (req->sv2);	525	SvREADONLY_off (req->sv2);
247		526
248	if (!EIO_CANCELLED (req) && req->callback)	527	if (!EIO_CANCELLED (req) && req->callback)
249	{	528	{
		529	dSP;
		530	static SV *sv_result_cache; /* caches the result integer SV */
		531	SV *sv_result;
		532
250	ENTER;	533	ENTER;
251	SAVETMPS;	534	SAVETMPS;
252	PUSHMARK (SP);	535	PUSHMARK (SP);
253	EXTEND (SP, 1);	536	EXTEND (SP, 1);
254		537
		538	/* do not recreate the result IV from scratch each time */
		539	if (expect_true (sv_result_cache))
		540	{
		541	sv_result = sv_result_cache; sv_result_cache = 0;
		542	SvIV_set (sv_result, req->result);
		543	SvIOK_only (sv_result);
		544	}
		545	else
		546	{
		547	sv_result = newSViv (req->result);
		548	SvREADONLY_on (sv_result);
		549	}
		550
255	switch (req->type)	551	switch (req->type)
256	{	552	{
		553	case EIO_WD_OPEN:
		554	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		555	break;
		556
257	case EIO_READDIR:	557	case EIO_READDIR:
258	{	558	{
259	SV *rv = &PL_sv_undef;	559	SV *rv = &PL_sv_undef;
260		560
261	if (req->result >= 0)	561	if (req->result >= 0)
…		…
314	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	614	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
315	}	615	}
316	break;	616	break;
317		617
318	case EIO_OPEN:	618	case EIO_OPEN:
		619	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
		620	break;
		621
		622	case EIO_STATVFS:
		623	case EIO_FSTATVFS:
319	{	624	{
320	/* convert fd to fh */
321	SV *fh = &PL_sv_undef;	625	SV *rv = &PL_sv_undef;
322		626
		627	#ifndef _WIN32
323	if (req->result >= 0)	628	if (req->result >= 0)
324	{	629	{
		630	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
325	GV *gv = (GV *)sv_newmortal ();	631	HV *hv = newHV ();
326	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	632	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
327	char sym [64];	633	* chooses to make it a struct.
328	int symlen;
329		634	*/
330	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);	635	unsigned long fsid = 0;
331	gv_init (gv, stash, sym, symlen, 0);	636	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
332		637
333	symlen = snprintf (	638	rv = sv_2mortal (newRV_noinc ((SV *)hv));
334	sym,
335	sizeof (sym),
336	"%s&=%d",
337	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
338	(int)req->result
339	);
340		639
341	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	640	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
342	fh = (SV *)gv;	641	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		642	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		643	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		644	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		645	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		646	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		647	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		648	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		649	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		650	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
343	}	651	}
		652	#endif
344		653
345	PUSHs (fh);	654	PUSHs (rv);
346	}	655	}
		656
347	break;	657	break;
348		658
349	case EIO_GROUP:	659	case EIO_GROUP:
350	req->int1 = 2; /* mark group as finished */	660	req->int1 = 2; /* mark group as finished */
351		661
…		…
363	case EIO_NOP:	673	case EIO_NOP:
364	case EIO_BUSY:	674	case EIO_BUSY:
365	break;	675	break;
366		676
367	case EIO_READLINK:	677	case EIO_READLINK:
		678	case EIO_REALPATH:
368	if (req->result > 0)	679	if (req->result > 0)
369	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	680	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
370	break;	681	break;
371		682
372	case EIO_STAT:	683	case EIO_STAT:
373	case EIO_LSTAT:	684	case EIO_LSTAT:
374	case EIO_FSTAT:	685	case EIO_FSTAT:
375	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	686	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		687
376	PL_laststatval = req->result;	688	if (!(PL_laststatval = req->result))
		689	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
377	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	690	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
378	PUSHs (sv_2mortal (newSViv (req->result)));	691
		692	PUSHs (sv_result);
		693	break;
		694
		695	case EIO_SEEK:
		696	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
379	break;	697	break;
380		698
381	case EIO_READ:	699	case EIO_READ:
382	{	700	{
383	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	701	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
384	*SvEND (req->sv2) = 0;	702	*SvEND (req->sv2) = 0;
385	SvPOK_only (req->sv2);	703	SvPOK_only (req->sv2);
386	SvSETMAGIC (req->sv2);	704	SvSETMAGIC (req->sv2);
387	PUSHs (sv_2mortal (newSViv (req->result)));	705	PUSHs (sv_result);
388	}	706	}
389	break;	707	break;
390		708
391	case EIO_DUP2:	709	case EIO_SLURP:
		710	{
		711	if (req->result >= 0)
		712	{
		713	/* if length was originally not known, we steal the malloc'ed memory */
		714	if (req->flags & EIO_FLAG_PTR2_FREE)
		715	{
		716	req->flags &= ~EIO_FLAG_PTR2_FREE;
		717	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		718	}
		719	else
		720	{
		721	SvCUR_set (req->sv2, req->result);
		722	*SvEND (req->sv2) = 0;
		723	SvPOK_only (req->sv2);
		724	}
		725
		726	SvSETMAGIC (req->sv2);
		727	}
		728
		729	PUSHs (sv_result);
		730	}
		731	break;
		732
		733	case EIO_CUSTOM:
		734	if (req->feed == fiemap)
		735	{
		736	#if HAVE_FIEMAP
		737	if (!req->result)
		738	{
		739	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		740
		741	if (fiemap->fm_extent_count)
		742	{
		743	AV *av = newAV ();
		744	int i;
		745
		746	while (fiemap->fm_mapped_extents)
		747	{
		748	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		749	AV *ext_av = newAV ();
		750
		751	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		752	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		753	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		754	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		755
		756	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		757	}
		758
		759	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		760	}
		761	else
		762	{
		763	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		764	PUSHs (sv_result);
		765	}
		766	}
		767	#endif
		768	}
		769	else
		770	PUSHs (sv_result);
		771	break;
		772
		773	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
392	if (req->result > 0)	774	if (req->result > 0)
393	req->result = 0;	775	SvIV_set (sv_result, 0);
394	/* FALLTHROUGH */	776	/* FALLTHROUGH */
395		777
396	default:	778	default:
397	PUSHs (sv_2mortal (newSViv (req->result)));	779	PUSHs (sv_result);
398	break;	780	break;
399	}	781	}
400		782
401	errno = req->errorno;	783	errno = req->errorno;
402		784
403	PUTBACK;	785	PUTBACK;
404	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	786	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
405	SPAGAIN;	787	SPAGAIN;
406		788
		789	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		790	SvREFCNT_dec (sv_result);
		791	else
		792	sv_result_cache = sv_result;
		793
407	FREETMPS;	794	FREETMPS;
408	LEAVE;	795	LEAVE;
409		796
410	PUTBACK;	797	PUTBACK;
411	}	798	}
412		799
413	return !!SvTRUE (ERRSV);	800	return !!SvTRUE (ERRSV);
414	}	801	}
415		802
		803	static void
416	static void req_destroy (aio_req req)	804	req_destroy (aio_req req)
417	{	805	{
418	if (req->self)	806	if (req->self)
419	{	807	{
420	sv_unmagic (req->self, PERL_MAGIC_ext);	808	sv_unmagic (req->self, PERL_MAGIC_ext);
421	SvREFCNT_dec (req->self);	809	SvREFCNT_dec (req->self);
422	}	810	}
423		811
424	SvREFCNT_dec (req->sv1);	812	SvREFCNT_dec (req->sv1);
425	SvREFCNT_dec (req->sv2);	813	SvREFCNT_dec (req->sv2);
		814	SvREFCNT_dec (req->sv3);
		815	SvREFCNT_dec (req->sv4);
426	SvREFCNT_dec (req->callback);	816	SvREFCNT_dec (req->callback);
427		817
428	Safefree (req);	818	free (req);
429	}	819	}
430		820
		821	static void
431	static void req_cancel_subs (aio_req grp)	822	req_cancel_subs (aio_req grp)
432	{	823	{
433	aio_req sub;
434
435	if (grp->type != EIO_GROUP)	824	if (grp->type != EIO_GROUP)
436	return;	825	return;
437		826
438	SvREFCNT_dec (grp->sv2);	827	SvREFCNT_dec (grp->sv2);
439	grp->sv2 = 0;	828	grp->sv2 = 0;
440		829
441	eio_grp_cancel (grp);	830	eio_grp_cancel (grp);
442	}	831	}
443		832
444	#ifdef USE_SOCKETS_AS_HANDLES	833	static void ecb_cold
445	# define TO_SOCKET(x) (win32_get_osfhandle (x))	834	create_respipe (void)
446	#else	835	{
447	# define TO_SOCKET(x) (x)	836	if (s_epipe_renew (&respipe))
448	#endif	837	croak ("IO::AIO: unable to initialize result pipe");
		838	}
449		839
450	static void	840	static void
451	create_respipe (void)	841	poll_wait (void)
452	{	842	{
453	int old_readfd = respipe [0];
454
455	if (respipe [1] >= 0)
456	respipe_close (TO_SOCKET (respipe [1]));
457
458	#ifdef _WIN32
459	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
460	#else
461	if (pipe (respipe))
462	#endif
463	croak ("unable to initialize result pipe");
464
465	if (old_readfd >= 0)
466	{
467	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
468	croak ("unable to initialize result pipe(2)");
469
470	respipe_close (respipe [0]);
471	respipe [0] = old_readfd;
472	}
473
474	#ifdef _WIN32
475	int arg = 1;
476	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
477	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
478	#else
479	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
480	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
481	#endif
482	croak ("unable to initialize result pipe(3)");
483
484	respipe_osf [0] = TO_SOCKET (respipe [0]);
485	respipe_osf [1] = TO_SOCKET (respipe [1]);
486	}
487
488	static void poll_wait (void)
489	{
490	fd_set rfd;
491
492	while (eio_nreqs ())	843	while (eio_nreqs ())
493	{	844	{
494	int size;	845	int size;
495		846
496	X_LOCK (reslock);	847	X_LOCK (EIO_POOL->reslock);
497	size = res_queue.size;	848	size = EIO_POOL->res_queue.size;
498	X_UNLOCK (reslock);	849	X_UNLOCK (EIO_POOL->reslock);
499		850
500	if (size)	851	if (size)
501	return;	852	return;
502		853
503	etp_maybe_start_thread ();	854	etp_maybe_start_thread (EIO_POOL);
504		855
505	FD_ZERO (&rfd);	856	s_epipe_wait (&respipe);
506	FD_SET (respipe [0], &rfd);
507
508	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
509	}	857	}
510	}	858	}
511		859
512	static int poll_cb (void)	860	static int
		861	poll_cb (void)
513	{	862	{
514	for (;;)	863	for (;;)
515	{	864	{
516	int res = eio_poll ();	865	int res = eio_poll ();
517		866
…		…
523		872
524	poll_wait ();	873	poll_wait ();
525	}	874	}
526	}	875	}
527		876
528	static void atfork_child (void)	877	static void ecb_cold
		878	reinit (void)
529	{	879	{
530	create_respipe ();	880	create_respipe ();
		881
		882	if (eio_init (want_poll, done_poll) < 0)
		883	croak ("IO::AIO: unable to initialise eio library");
531	}	884	}
		885
		886	/*****************************************************************************/
532		887
533	static SV *	888	static SV *
534	get_cb (SV *cb_sv)	889	get_cb (SV *cb_sv)
535	{	890	{
536	HV *st;	891	SvGETMAGIC (cb_sv);
537	GV *gvp;	892	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		893	}
		894
		895	static aio_req ecb_noinline
		896	dreq (SV *callback)
		897	{
538	CV *cv;	898	SV *cb_cv;
		899	aio_req req;
		900	int req_pri = next_pri;
		901	next_pri = EIO_PRI_DEFAULT;
539		902
540	if (!SvOK (cb_sv))	903	cb_cv = get_cb (callback);
		904
		905	req = calloc (sizeof (*req), 1);
		906	if (!req)
		907	croak ("out of memory during eio_req allocation");
		908
		909	req->callback = SvREFCNT_inc (cb_cv);
		910	req->pri = req_pri;
		911
541	return 0;	912	return req;
542
543	cv = sv_2cv (cb_sv, &st, &gvp, 0);
544
545	if (!cv)
546	croak ("IO::AIO callback must be undef or a CODE reference");
547
548	return (SV *)cv;
549	}	913	}
550		914
551	#define dREQ \	915	#define dREQ \
552	SV *cb_cv; \	916	aio_req req = dreq (callback); \
553	aio_req req; \
554	int req_pri = next_pri; \
555	next_pri = EIO_PRI_DEFAULT; \
556	\
557	cb_cv = get_cb (callback); \
558	\
559	Newz (0, req, 1, eio_req); \
560	if (!req) \
561	croak ("out of memory during eio_req allocation"); \
562	\
563	req->callback = SvREFCNT_inc (cb_cv); \
564	req->pri = req_pri
565		917
566	#define REQ_SEND \	918	#define REQ_SEND \
567	PUTBACK; \	919	PUTBACK; \
568	req_submit (req); \	920	req_submit (req); \
569	SPAGAIN; \	921	SPAGAIN; \
570	\	922	\
571	if (GIMME_V != G_VOID) \	923	if (GIMME_V != G_VOID) \
572	XPUSHs (req_sv (req, AIO_REQ_KLASS));	924	XPUSHs (req_sv (req, aio_req_stash));
573		925
		926	ecb_inline void
		927	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		928	{
		929	if (expect_false (SvROK (path)))
		930	{
		931	SV *rv = SvRV (path);
		932	SV *wdob;
		933
		934	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		935	{
		936	path = AvARRAY (rv)[1];
		937	wdob = AvARRAY (rv)[0];
		938
		939	if (SvOK (wdob))
		940	{
		941	*wd = SvAIO_WD (wdob);
		942	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		943	}
		944	else
		945	*wd = EIO_INVALID_WD;
		946	}
		947	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		948	{
		949	*wd = (aio_wd)(long)SvIVX (rv);
		950	*wdsv = SvREFCNT_inc_NN (rv);
		951	*ptr = ".";
		952	return; /* path set to "." */
		953	}
		954	else
		955	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		956	}
		957
		958	*pathsv = newSVsv (path);
		959	*ptr = SvPVbyte_nolen (*pathsv);
		960	}
		961
		962	static void ecb_noinline
		963	req_set_path1 (aio_req req, SV *path)
		964	{
		965	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		966	}
		967
		968	static void ecb_noinline
		969	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		970	{
		971	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		972
		973	switch (SvTYPE (rv))
		974	{
		975	case SVt_PVIO:
		976	case SVt_PVLV:
		977	case SVt_PVGV:
		978	req->type = type_fh;
		979	req->sv1 = newSVsv (fh_or_path);
		980	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		981	break;
		982
		983	default:
		984	req->type = type_path;
		985	req_set_path1 (req, fh_or_path);
		986	break;
		987	}
		988	}
		989
		990	/*****************************************************************************/
		991
574	static int	992	static void
575	extract_fd (SV *fh, int wr)	993	ts_set (struct timespec *ts, NV value)
576	{	994	{
577	int fd = PerlIO_fileno (wr ? IoOFP (sv_2io (fh)) : IoIFP (sv_2io (fh)));	995	ts->tv_sec = value;
578		996	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
579	if (fd < 0)
580	croak ("illegal fh argument, either not an OS file or read/write mode mismatch");
581
582	return fd;
583	}	997	}
		998
		999	static NV
		1000	ts_get (const struct timespec *ts)
		1001	{
		1002	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1003	}
		1004
		1005	/*****************************************************************************/
		1006
		1007	XS(boot_IO__AIO) ecb_cold;
584		1008
585	MODULE = IO::AIO PACKAGE = IO::AIO	1009	MODULE = IO::AIO PACKAGE = IO::AIO
586		1010
587	PROTOTYPES: ENABLE	1011	PROTOTYPES: ENABLE
588		1012
…		…
590	{	1014	{
591	static const struct {	1015	static const struct {
592	const char *name;	1016	const char *name;
593	IV iv;	1017	IV iv;
594	} *civ, const_iv[] = {	1018	} *civ, const_iv[] = {
595	# define const_iv(name, value) { # name, (IV) value },	1019	# define const_niv(name, value) { # name, (IV) value },
		1020	# define const_iv(name) { # name, (IV) name },
596	# define const_eio(name) { # name, (IV) EIO_ ## name },	1021	# define const_eio(name) { # name, (IV) EIO_ ## name },
597	const_iv (EXDEV , EXDEV)	1022
		1023	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1024	/* the first block can be undef if missing */
598	const_iv (ENOSYS , ENOSYS)	1025	const_iv (ENOSYS)
599	const_iv (O_RDONLY, O_RDONLY)	1026	const_iv (EXDEV)
600	const_iv (O_WRONLY, O_WRONLY)	1027	const_iv (EBADR)
601	const_iv (O_CREAT , O_CREAT)	1028
602	const_iv (O_TRUNC , O_TRUNC)	1029	/* for lseek */
603	#ifndef _WIN32	1030	const_iv (SEEK_DATA)
604	const_iv (S_IFIFO , S_IFIFO)	1031	const_iv (SEEK_HOLE)
605	#endif	1032
606	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	1033	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
607	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	1034	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
608	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	1035	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
609	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	1036	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
610	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	1037	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
611	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	1038	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1039
		1040	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1041	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1042	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1043	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1044	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1045
		1046	/* the second block will be 0 when missing */
		1047	const_iv (O_RDONLY)
		1048	const_iv (O_WRONLY)
		1049	const_iv (O_RDWR)
		1050	const_iv (O_CREAT)
		1051	const_iv (O_TRUNC)
		1052	const_iv (O_EXCL)
		1053	const_iv (O_APPEND)
		1054
		1055	const_iv (O_ASYNC)
		1056	const_iv (O_DIRECT)
		1057	const_iv (O_NOATIME)
		1058
		1059	const_iv (O_CLOEXEC)
		1060	const_iv (O_NOCTTY)
		1061	const_iv (O_NOFOLLOW)
		1062	const_iv (O_NONBLOCK)
		1063	const_iv (O_EXEC)
		1064	const_iv (O_SEARCH)
		1065	const_iv (O_DIRECTORY)
		1066	const_iv (O_DSYNC)
		1067	const_iv (O_RSYNC)
		1068	const_iv (O_SYNC)
		1069	const_iv (O_PATH)
		1070	const_iv (O_TMPFILE)
		1071	const_iv (O_TTY_INIT)
		1072
		1073	const_iv (S_IFIFO)
		1074	const_iv (S_IFCHR)
		1075	const_iv (S_IFBLK)
		1076	const_iv (S_IFLNK)
		1077	const_iv (S_IFREG)
		1078	const_iv (S_IFDIR)
		1079	const_iv (S_IFWHT)
		1080	const_iv (S_IFSOCK)
		1081	const_iv (S_IFMT)
		1082
		1083	const_iv (ST_RDONLY)
		1084	const_iv (ST_NOSUID)
		1085	const_iv (ST_NODEV)
		1086	const_iv (ST_NOEXEC)
		1087	const_iv (ST_SYNCHRONOUS)
		1088	const_iv (ST_MANDLOCK)
		1089	const_iv (ST_WRITE)
		1090	const_iv (ST_APPEND)
		1091	const_iv (ST_IMMUTABLE)
		1092	const_iv (ST_NOATIME)
		1093	const_iv (ST_NODIRATIME)
		1094	const_iv (ST_RELATIME)
		1095
		1096	const_iv (PROT_NONE)
		1097	const_iv (PROT_EXEC)
		1098	const_iv (PROT_READ)
		1099	const_iv (PROT_WRITE)
		1100
		1101	const_iv (MAP_PRIVATE)
		1102	const_iv (MAP_SHARED)
		1103	const_iv (MAP_FIXED)
		1104	const_iv (MAP_ANONYMOUS)
		1105
		1106	/* linuxish */
		1107	const_iv (MAP_LOCKED)
		1108	const_iv (MAP_NORESERVE)
		1109	const_iv (MAP_POPULATE)
		1110	const_iv (MAP_NONBLOCK)
		1111	const_iv (MAP_GROWSDOWN)
		1112	const_iv (MAP_32BIT)
		1113	const_iv (MAP_HUGETLB)
		1114	const_iv (MAP_STACK)
		1115
		1116	const_iv (MREMAP_MAYMOVE)
		1117	const_iv (MREMAP_FIXED)
		1118
		1119	const_iv (F_DUPFD_CLOEXEC)
		1120
		1121	const_iv (F_OFD_GETLK)
		1122	const_iv (F_OFD_SETLK)
		1123	const_iv (F_OFD_GETLKW)
		1124
		1125	const_iv (FIFREEZE)
		1126	const_iv (FITHAW)
		1127	const_iv (FITRIM)
		1128	const_iv (FICLONE)
		1129	const_iv (FICLONERANGE)
		1130	const_iv (FIDEDUPERANGE)
		1131
		1132	const_iv (FS_IOC_GETFLAGS)
		1133	const_iv (FS_IOC_SETFLAGS)
		1134	const_iv (FS_IOC_GETVERSION)
		1135	const_iv (FS_IOC_SETVERSION)
		1136	const_iv (FS_IOC_FIEMAP)
		1137	const_iv (FS_IOC_FSGETXATTR)
		1138	const_iv (FS_IOC_FSSETXATTR)
		1139	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1140	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1141	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1142
		1143	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1144
		1145	const_iv (FS_SECRM_FL)
		1146	const_iv (FS_UNRM_FL)
		1147	const_iv (FS_COMPR_FL)
		1148	const_iv (FS_SYNC_FL)
		1149	const_iv (FS_IMMUTABLE_FL)
		1150	const_iv (FS_APPEND_FL)
		1151	const_iv (FS_NODUMP_FL)
		1152	const_iv (FS_NOATIME_FL)
		1153	const_iv (FS_DIRTY_FL)
		1154	const_iv (FS_COMPRBLK_FL)
		1155	const_iv (FS_NOCOMP_FL)
		1156	const_iv (FS_ENCRYPT_FL)
		1157	const_iv (FS_BTREE_FL)
		1158	const_iv (FS_INDEX_FL)
		1159	const_iv (FS_JOURNAL_DATA_FL)
		1160	const_iv (FS_NOTAIL_FL)
		1161	const_iv (FS_DIRSYNC_FL)
		1162	const_iv (FS_TOPDIR_FL)
		1163	const_iv (FS_FL_USER_MODIFIABLE)
		1164
		1165	const_iv (FS_XFLAG_REALTIME)
		1166	const_iv (FS_XFLAG_PREALLOC)
		1167	const_iv (FS_XFLAG_IMMUTABLE)
		1168	const_iv (FS_XFLAG_APPEND)
		1169	const_iv (FS_XFLAG_SYNC)
		1170	const_iv (FS_XFLAG_NOATIME)
		1171	const_iv (FS_XFLAG_NODUMP)
		1172	const_iv (FS_XFLAG_RTINHERIT)
		1173	const_iv (FS_XFLAG_PROJINHERIT)
		1174	const_iv (FS_XFLAG_NOSYMLINKS)
		1175	const_iv (FS_XFLAG_EXTSIZE)
		1176	const_iv (FS_XFLAG_EXTSZINHERIT)
		1177	const_iv (FS_XFLAG_NODEFRAG)
		1178	const_iv (FS_XFLAG_FILESTREAM)
		1179	const_iv (FS_XFLAG_DAX)
		1180	const_iv (FS_XFLAG_HASATTR)
		1181
		1182	const_iv (FIEMAP_FLAG_SYNC)
		1183	const_iv (FIEMAP_FLAG_XATTR)
		1184	const_iv (FIEMAP_FLAGS_COMPAT)
		1185	const_iv (FIEMAP_EXTENT_LAST)
		1186	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1187	const_iv (FIEMAP_EXTENT_DELALLOC)
		1188	const_iv (FIEMAP_EXTENT_ENCODED)
		1189	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1190	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1191	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1192	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1193	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1194	const_iv (FIEMAP_EXTENT_MERGED)
		1195	const_iv (FIEMAP_EXTENT_SHARED)
		1196
		1197	const_iv (SPLICE_F_MOVE)
		1198	const_iv (SPLICE_F_NONBLOCK)
		1199	const_iv (SPLICE_F_MORE)
		1200	const_iv (SPLICE_F_GIFT)
		1201
		1202	const_iv (EFD_CLOEXEC)
		1203	const_iv (EFD_NONBLOCK)
		1204	const_iv (EFD_SEMAPHORE)
		1205
		1206	const_iv (CLOCK_REALTIME)
		1207	const_iv (CLOCK_MONOTONIC)
		1208	const_iv (CLOCK_BOOTTIME)
		1209	const_iv (CLOCK_REALTIME_ALARM)
		1210	const_iv (CLOCK_BOOTTIME_ALARM)
		1211
		1212	const_iv (TFD_NONBLOCK)
		1213	const_iv (TFD_CLOEXEC)
		1214
		1215	const_iv (TFD_TIMER_ABSTIME)
		1216	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1217
		1218	/* these are libeio constants, and are independent of gendef0 */
		1219	const_eio (SEEK_SET)
		1220	const_eio (SEEK_CUR)
		1221	const_eio (SEEK_END)
		1222
		1223	const_eio (MCL_FUTURE)
		1224	const_eio (MCL_CURRENT)
		1225
		1226	const_eio (MS_ASYNC)
		1227	const_eio (MS_INVALIDATE)
		1228	const_eio (MS_SYNC)
		1229
		1230	const_eio (MT_MODIFY)
612		1231
613	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1232	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
614	const_eio (SYNC_FILE_RANGE_WRITE)	1233	const_eio (SYNC_FILE_RANGE_WRITE)
615	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1234	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1235
		1236	const_eio (FALLOC_FL_KEEP_SIZE)
		1237	const_eio (FALLOC_FL_PUNCH_HOLE)
		1238	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1239	const_eio (FALLOC_FL_ZERO_RANGE)
		1240	const_eio (FALLOC_FL_INSERT_RANGE)
		1241	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1242
		1243	const_eio (RENAME_NOREPLACE)
		1244	const_eio (RENAME_EXCHANGE)
		1245	const_eio (RENAME_WHITEOUT)
616		1246
617	const_eio (READDIR_DENTS)	1247	const_eio (READDIR_DENTS)
618	const_eio (READDIR_DIRS_FIRST)	1248	const_eio (READDIR_DIRS_FIRST)
619	const_eio (READDIR_STAT_ORDER)	1249	const_eio (READDIR_STAT_ORDER)
620	const_eio (READDIR_FOUND_UNKNOWN)	1250	const_eio (READDIR_FOUND_UNKNOWN)
…		…
628	const_eio (DT_LNK)	1258	const_eio (DT_LNK)
629	const_eio (DT_SOCK)	1259	const_eio (DT_SOCK)
630	const_eio (DT_WHT)	1260	const_eio (DT_WHT)
631	};	1261	};
632		1262
633	stash = gv_stashpv ("IO::AIO", 1);	1263	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1264	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1265	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1266	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
634		1267
635	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1268	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
636	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1269	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
637		1270
638	create_respipe ();	1271	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
639		1272
640	if (eio_init (want_poll, done_poll) < 0)	1273	reinit ();
641	croak ("IO::AIO: unable to initialise eio library");
642
643	/* atfork child called in fifo order, so before eio's handler */
644	X_THREAD_ATFORK (0, 0, atfork_child);
645	}	1274	}
646		1275
647	void	1276	void
		1277	reinit ()
		1278	PROTOTYPE:
		1279
		1280	void
648	max_poll_reqs (int nreqs)	1281	max_poll_reqs (unsigned int nreqs)
649	PROTOTYPE: $	1282	PROTOTYPE: $
650	CODE:	1283	CODE:
651	eio_set_max_poll_reqs (nreqs);	1284	eio_set_max_poll_reqs (nreqs);
652		1285
653	void	1286	void
…		…
655	PROTOTYPE: $	1288	PROTOTYPE: $
656	CODE:	1289	CODE:
657	eio_set_max_poll_time (nseconds);	1290	eio_set_max_poll_time (nseconds);
658		1291
659	void	1292	void
660	min_parallel (int nthreads)	1293	min_parallel (unsigned int nthreads)
661	PROTOTYPE: $	1294	PROTOTYPE: $
662	CODE:	1295	CODE:
663	eio_set_min_parallel (nthreads);	1296	eio_set_min_parallel (nthreads);
664		1297
665	void	1298	void
666	max_parallel (int nthreads)	1299	max_parallel (unsigned int nthreads)
667	PROTOTYPE: $	1300	PROTOTYPE: $
668	CODE:	1301	CODE:
669	eio_set_max_parallel (nthreads);	1302	eio_set_max_parallel (nthreads);
670		1303
671	void	1304	void
672	max_idle (int nthreads)	1305	max_idle (unsigned int nthreads)
673	PROTOTYPE: $	1306	PROTOTYPE: $
674	CODE:	1307	CODE:
675	eio_set_max_idle (nthreads);	1308	eio_set_max_idle (nthreads);
676		1309
677	void	1310	void
		1311	idle_timeout (unsigned int seconds)
		1312	PROTOTYPE: $
		1313	CODE:
		1314	eio_set_idle_timeout (seconds);
		1315
		1316	void
678	max_outstanding (int maxreqs)	1317	max_outstanding (unsigned int maxreqs)
679	PROTOTYPE: $	1318	PROTOTYPE: $
680	CODE:	1319	CODE:
681	max_outstanding = maxreqs;	1320	max_outstanding = maxreqs;
682		1321
683	void	1322	void
684	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1323	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
685	PROTOTYPE: $$$;$
686	PPCODE:	1324	PPCODE:
687	{	1325	{
688	dREQ;	1326	dREQ;
689		1327
		1328	req->type = EIO_WD_OPEN;
		1329	req_set_path1 (req, pathname);
		1330
		1331	REQ_SEND;
		1332	}
		1333
		1334	void
		1335	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1336	PPCODE:
		1337	{
		1338	dREQ;
		1339
690	req->type = EIO_OPEN;	1340	req->type = EIO_OPEN;
691	req->sv1 = newSVsv (pathname);	1341	req_set_path1 (req, pathname);
692	req->ptr1 = SvPVbyte_nolen (req->sv1);
693	req->int1 = flags;	1342	req->int1 = flags;
694	req->int2 = mode;	1343	req->int2 = mode;
695		1344
696	REQ_SEND;	1345	REQ_SEND;
697	}	1346	}
698		1347
699	void	1348	void
700	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1349	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
701	PROTOTYPE: $;$
702	ALIAS:	1350	ALIAS:
703	aio_fsync = EIO_FSYNC	1351	aio_fsync = EIO_FSYNC
704	aio_fdatasync = EIO_FDATASYNC	1352	aio_fdatasync = EIO_FDATASYNC
		1353	aio_syncfs = EIO_SYNCFS
705	PPCODE:	1354	PPCODE:
706	{	1355	{
707	int fd = extract_fd (fh, 0);	1356	int fd = s_fileno_croak (fh, 0);
708	dREQ;	1357	dREQ;
709		1358
710	req->type = ix;	1359	req->type = ix;
711	req->sv1 = newSVsv (fh);	1360	req->sv1 = newSVsv (fh);
712	req->int1 = fd;	1361	req->int1 = fd;
713		1362
714	REQ_SEND (req);	1363	REQ_SEND;
715	}	1364	}
716		1365
717	void	1366	void
718	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1367	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
719	PROTOTYPE: $$$$;$
720	PPCODE:	1368	PPCODE:
721	{	1369	{
722	int fd = extract_fd (fh, 0);	1370	int fd = s_fileno_croak (fh, 0);
723	dREQ;	1371	dREQ;
724		1372
725	req->type = EIO_SYNC_FILE_RANGE;	1373	req->type = EIO_SYNC_FILE_RANGE;
726	req->sv1 = newSVsv (fh);	1374	req->sv1 = newSVsv (fh);
727	req->int1 = fd;	1375	req->int1 = fd;
728	req->offs = offset;	1376	req->offs = offset;
729	req->size = nbytes;	1377	req->size = nbytes;
730	req->int2 = flags;	1378	req->int2 = flags;
731		1379
732	REQ_SEND (req);	1380	REQ_SEND;
733	}	1381	}
734		1382
735	void	1383	void
736	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1384	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
737	PROTOTYPE: $;$
738	PPCODE:	1385	PPCODE:
739	{	1386	{
740	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1387	int fd = s_fileno_croak (fh, 0);
741	int fd = extract_fd (fh, 0);
742	dREQ;	1388	dREQ;
743		1389
744	if (close_pipe < 0)	1390	req->type = EIO_FALLOCATE;
		1391	req->sv1 = newSVsv (fh);
		1392	req->int1 = fd;
		1393	req->int2 = mode;
		1394	req->offs = offset;
		1395	req->size = len;
		1396
		1397	REQ_SEND;
		1398	}
		1399
		1400	void
		1401	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1402	PPCODE:
		1403	{
		1404	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1405	int fd = s_fileno_croak (fh, 0);
		1406	dREQ;
		1407
		1408	if (expect_false (close_fd < 0))
745	{	1409	{
746	int pipefd [2];	1410	int pipefd [2];
747		1411
		1412	if (
		1413	#ifdef _WIN32
		1414	_pipe (pipefd, 1, _O_BINARY) < 0
		1415	#else
748	if (pipe (pipefd) < 0	1416	pipe (pipefd) < 0
749	|| close (pipefd [1]) < 0
750	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1417	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1418	#endif
		1419	|| close (pipefd [1]) < 0
		1420	)
751	abort (); /*D*/	1421	abort (); /*D*/
752		1422
753	close_pipe = pipefd [0];	1423	close_fd = pipefd [0];
754	}	1424	}
755		1425
756	req->type = EIO_DUP2;	1426	req->type = EIO_DUP2;
757	req->int1 = close_pipe;	1427	req->int1 = close_fd;
758	req->sv2 = newSVsv (fh);	1428	req->sv2 = newSVsv (fh);
759	req->int2 = fd;	1429	req->int2 = fd;
760		1430
761	REQ_SEND (req);	1431	REQ_SEND;
762	}	1432	}
763		1433
764	void	1434	void
		1435	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1436	PPCODE:
		1437	{
		1438	int fd = s_fileno_croak (fh, 0);
		1439	dREQ;
		1440
		1441	req->type = EIO_SEEK;
		1442	req->sv1 = newSVsv (fh);
		1443	req->int1 = fd;
		1444	req->offs = SvVAL64 (offset);
		1445	req->int2 = whence;
		1446
		1447	REQ_SEND;
		1448	}
		1449
		1450	void
765	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1451	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
766	ALIAS:	1452	ALIAS:
767	aio_read = EIO_READ	1453	aio_read = EIO_READ
768	aio_write = EIO_WRITE	1454	aio_write = EIO_WRITE
769	PROTOTYPE: $$$$$;$
770	PPCODE:	1455	PPCODE:
771	{	1456	{
772	STRLEN svlen;	1457	STRLEN svlen;
773	int fd = extract_fd (fh, ix == EIO_WRITE);	1458	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
774	char *svptr = SvPVbyte (data, svlen);	1459	char *svptr = SvPVbyte (data, svlen);
775	UV len = SvUV (length);	1460	UV len = SvUV (length);
776		1461
777	if (dataoffset < 0)	1462	if (dataoffset < 0)
778	dataoffset += svlen;	1463	dataoffset += svlen;
…		…
787	len = svlen - dataoffset;	1472	len = svlen - dataoffset;
788	}	1473	}
789	else	1474	else
790	{	1475	{
791	/* read: check type and grow scalar as necessary */	1476	/* read: check type and grow scalar as necessary */
792	SvUPGRADE (data, SVt_PV);	1477	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
793	svptr = SvGROW (data, len + dataoffset + 1);	1478	svptr = sv_grow (data, len + dataoffset + 1);
		1479	else if (SvCUR (data) < len + dataoffset)
		1480	croak ("length + dataoffset outside of scalar, and cannot grow");
794	}	1481	}
795		1482
796	{	1483	{
797	dREQ;	1484	dREQ;
798		1485
…		…
814	REQ_SEND;	1501	REQ_SEND;
815	}	1502	}
816	}	1503	}
817		1504
818	void	1505	void
819	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1506	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
820	PROTOTYPE: $$;$	1507	ALIAS:
		1508	aio_ioctl = EIO_IOCTL
		1509	aio_fcntl = EIO_FCNTL
821	PPCODE:	1510	PPCODE:
822	{	1511	{
823	SV *data;	1512	int fd = s_fileno_croak (fh, 0);
		1513	char *svptr;
		1514
		1515	if (SvPOK (arg) || !SvNIOK (arg))
		1516	{
		1517	STRLEN svlen;
		1518	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1519	#ifdef IOCPARM_LEN
		1520	STRLEN need = IOCPARM_LEN (request);
		1521	#else
		1522	STRLEN need = 256;
		1523	#endif
		1524
		1525	if (svlen < need)
		1526	svptr = SvGROW (arg, need);
		1527	}
		1528	else
		1529	svptr = (char *)SvIV (arg);
		1530
		1531	{
		1532	dREQ;
		1533
		1534	req->type = ix;
		1535	req->sv1 = newSVsv (fh);
		1536	req->int1 = fd;
		1537	req->int2 = (long)request;
		1538	req->sv2 = SvREFCNT_inc (arg);
		1539	req->ptr2 = svptr;
		1540
		1541	REQ_SEND;
		1542	}
		1543	}
		1544
		1545	void
		1546	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1547	ALIAS:
		1548	aio_readlink = EIO_READLINK
		1549	aio_realpath = EIO_REALPATH
		1550	PPCODE:
		1551	{
824	dREQ;	1552	dREQ;
825		1553
826	req->type = EIO_READLINK;	1554	req->type = ix;
827	req->sv1 = newSVsv (path);	1555	req_set_path1 (req, pathname);
828	req->ptr1 = SvPVbyte_nolen (req->sv1);
829		1556
830	REQ_SEND;	1557	REQ_SEND;
831	}	1558	}
832		1559
833	void	1560	void
834	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1561	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
835	PROTOTYPE: $$$$;$
836	PPCODE:	1562	PPCODE:
837	{	1563	{
838	int ifd = extract_fd (in_fh , 0);	1564	int ifd = s_fileno_croak (in_fh , 0);
839	int ofd = extract_fd (out_fh, 0);	1565	int ofd = s_fileno_croak (out_fh, 1);
840	dREQ;	1566	dREQ;
841		1567
842	req->type = EIO_SENDFILE;	1568	req->type = EIO_SENDFILE;
843	req->sv1 = newSVsv (out_fh);	1569	req->sv1 = newSVsv (out_fh);
844	req->int1 = ofd;	1570	req->int1 = ofd;
…		…
849		1575
850	REQ_SEND;	1576	REQ_SEND;
851	}	1577	}
852		1578
853	void	1579	void
854	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1580	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
855	PROTOTYPE: $$$;$
856	PPCODE:	1581	PPCODE:
857	{	1582	{
858	int fd = extract_fd (fh, 0);	1583	int fd = s_fileno_croak (fh, 0);
859	dREQ;	1584	dREQ;
860		1585
861	req->type = EIO_READAHEAD;	1586	req->type = EIO_READAHEAD;
862	req->sv1 = newSVsv (fh);	1587	req->sv1 = newSVsv (fh);
863	req->int1 = fd;	1588	req->int1 = fd;
…		…
866		1591
867	REQ_SEND;	1592	REQ_SEND;
868	}	1593	}
869		1594
870	void	1595	void
871	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1596	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
872	ALIAS:	1597	ALIAS:
873	aio_stat = EIO_STAT	1598	aio_stat = EIO_STAT
874	aio_lstat = EIO_LSTAT	1599	aio_lstat = EIO_LSTAT
		1600	aio_statvfs = EIO_STATVFS
875	PPCODE:	1601	PPCODE:
876	{	1602	{
877	dREQ;	1603	dREQ;
878		1604
879	req->sv1 = newSVsv (fh_or_path);	1605	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
880
881	if (SvPOK (req->sv1))
882	{
883	req->type = ix;
884	req->ptr1 = SvPVbyte_nolen (req->sv1);
885	}
886	else
887	{
888	req->type = EIO_FSTAT;
889	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
890	}
891		1606
892	REQ_SEND;	1607	REQ_SEND;
893	}	1608	}
894		1609
		1610	UV
		1611	major (UV dev)
		1612	ALIAS:
		1613	minor = 1
		1614	CODE:
		1615	RETVAL = ix ? minor (dev) : major (dev);
		1616	OUTPUT:
		1617	RETVAL
		1618
		1619	UV
		1620	makedev (UV maj, UV min)
		1621	CODE:
		1622	RETVAL = makedev (maj, min);
		1623	OUTPUT:
		1624	RETVAL
		1625
895	void	1626	void
896	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1627	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
897	PPCODE:	1628	PPCODE:
898	{	1629	{
899	dREQ;	1630	dREQ;
900		1631
901	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1632	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
902	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1633	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
903	req->sv1 = newSVsv (fh_or_path);	1634	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
904
905	if (SvPOK (req->sv1))
906	{
907	req->type = EIO_UTIME;
908	req->ptr1 = SvPVbyte_nolen (req->sv1);
909	}
910	else
911	{
912	req->type = EIO_FUTIME;
913	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
914	}
915		1635
916	REQ_SEND;	1636	REQ_SEND;
917	}	1637	}
918		1638
919	void	1639	void
920	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1640	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
921	PPCODE:	1641	PPCODE:
922	{	1642	{
923	dREQ;	1643	dREQ;
924		1644
925	req->sv1 = newSVsv (fh_or_path);
926	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1645	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
927		1646	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
928	if (SvPOK (req->sv1))
929	{
930	req->type = EIO_TRUNCATE;
931	req->ptr1 = SvPVbyte_nolen (req->sv1);
932	}
933	else
934	{
935	req->type = EIO_FTRUNCATE;
936	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
937	}
938		1647
939	REQ_SEND;	1648	REQ_SEND;
940	}	1649	}
941		1650
942	void	1651	void
943	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1652	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
944	ALIAS:
945	aio_chmod = EIO_CHMOD
946	aio_mkdir = EIO_MKDIR
947	PPCODE:	1653	PPCODE:
948	{	1654	{
949	dREQ;	1655	dREQ;
950		1656
951	req->int2 = mode;	1657	req->int2 = mode;
952	req->sv1 = newSVsv (fh_or_path);	1658	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
953
954	if (SvPOK (req->sv1))
955	{
956	req->type = ix;
957	req->ptr1 = SvPVbyte_nolen (req->sv1);
958	}
959	else
960	{
961	req->type = EIO_FCHMOD;
962	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
963	}
964		1659
965	REQ_SEND;	1660	REQ_SEND;
966	}	1661	}
967		1662
968	void	1663	void
969	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1664	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
970	PPCODE:	1665	PPCODE:
971	{	1666	{
972	dREQ;	1667	dREQ;
973		1668
974	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1669	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
975	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1670	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
976	req->sv1 = newSVsv (fh_or_path);	1671	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
977
978	if (SvPOK (req->sv1))
979	{
980	req->type = EIO_CHOWN;
981	req->ptr1 = SvPVbyte_nolen (req->sv1);
982	}
983	else
984	{
985	req->type = EIO_FCHOWN;
986	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
987	}
988		1672
989	REQ_SEND;	1673	REQ_SEND;
990	}	1674	}
991		1675
992	void	1676	void
993	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1677	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
994	PPCODE:	1678	PPCODE:
995	{	1679	{
996	dREQ;	1680	dREQ;
997		1681
998	req->type = EIO_READDIR;	1682	req->type = EIO_READDIR;
999	req->sv1 = newSVsv (pathname);
1000	req->ptr1 = SvPVbyte_nolen (req->sv1);
1001	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1683	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1002		1684
1003	if (flags & EIO_READDIR_DENTS)	1685	if (flags & EIO_READDIR_DENTS)
1004	req->int1 |= EIO_READDIR_CUSTOM2;	1686	req->int1 |= EIO_READDIR_CUSTOM2;
1005		1687
		1688	req_set_path1 (req, pathname);
		1689
1006	REQ_SEND;	1690	REQ_SEND;
1007	}	1691	}
1008		1692
1009	void	1693	void
		1694	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1695	PPCODE:
		1696	{
		1697	dREQ;
		1698
		1699	req->type = EIO_MKDIR;
		1700	req->int2 = mode;
		1701	req_set_path1 (req, pathname);
		1702
		1703	REQ_SEND;
		1704	}
		1705
		1706	void
1010	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1707	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1011	ALIAS:	1708	ALIAS:
1012	aio_unlink = EIO_UNLINK	1709	aio_unlink = EIO_UNLINK
1013	aio_rmdir = EIO_RMDIR	1710	aio_rmdir = EIO_RMDIR
1014	aio_readdir = EIO_READDIR	1711	aio_readdir = EIO_READDIR
1015	PPCODE:	1712	PPCODE:
1016	{	1713	{
1017	dREQ;	1714	dREQ;
1018		1715
1019	req->type = ix;	1716	req->type = ix;
1020	req->sv1 = newSVsv (pathname);	1717	req_set_path1 (req, pathname);
1021	req->ptr1 = SvPVbyte_nolen (req->sv1);
1022		1718
1023	REQ_SEND;	1719	REQ_SEND;
1024	}	1720	}
1025		1721
1026	void	1722	void
1027	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1723	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1028	ALIAS:	1724	ALIAS:
1029	aio_link = EIO_LINK	1725	aio_link = EIO_LINK
1030	aio_symlink = EIO_SYMLINK	1726	aio_symlink = EIO_SYMLINK
1031	aio_rename = EIO_RENAME	1727	aio_rename = EIO_RENAME
1032	PPCODE:	1728	PPCODE:
1033	{	1729	{
		1730	eio_wd wd2 = 0;
1034	dREQ;	1731	dREQ;
1035		1732
1036	req->type = ix;	1733	req->type = ix;
1037	req->sv1 = newSVsv (oldpath);	1734	req_set_path1 (req, oldpath);
1038	req->ptr1 = SvPVbyte_nolen (req->sv1);	1735	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1039	req->sv2 = newSVsv (newpath);	1736	req->int3 = (long)wd2;
1040	req->ptr2 = SvPVbyte_nolen (req->sv2);
1041		1737
1042	REQ_SEND;	1738	REQ_SEND;
1043	}	1739	}
1044		1740
1045	void	1741	void
		1742	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1743	PPCODE:
		1744	{
		1745	eio_wd wd2 = 0;
		1746	dREQ;
		1747
		1748	req->type = EIO_RENAME;
		1749	req_set_path1 (req, oldpath);
		1750	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1751	req->int2 = flags;
		1752	req->int3 = (long)wd2;
		1753
		1754	REQ_SEND;
		1755	}
		1756
		1757	void
1046	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1758	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1047	PPCODE:	1759	PPCODE:
1048	{	1760	{
1049	dREQ;	1761	dREQ;
1050		1762
1051	req->type = EIO_MKNOD;	1763	req->type = EIO_MKNOD;
1052	req->sv1 = newSVsv (pathname);
1053	req->ptr1 = SvPVbyte_nolen (req->sv1);
1054	req->int2 = (mode_t)mode;	1764	req->int2 = (mode_t)mode;
1055	req->offs = dev;	1765	req->offs = dev;
		1766	req_set_path1 (req, pathname);
1056		1767
1057	REQ_SEND;	1768	REQ_SEND;
1058	}	1769	}
1059		1770
1060	void	1771	void
		1772	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
		1773	ALIAS:
		1774	aio_mtouch = EIO_MTOUCH
		1775	aio_msync = EIO_MSYNC
		1776	PPCODE:
		1777	{
		1778	STRLEN svlen;
		1779	char *svptr = SvPVbyte (data, svlen);
		1780	UV len = SvUV (length);
		1781
		1782	if (flags < 0)
		1783	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
		1784
		1785	if (offset < 0)
		1786	offset += svlen;
		1787
		1788	if (offset < 0 || offset > svlen)
		1789	croak ("offset outside of scalar");
		1790
		1791	if (!SvOK (length) || len + offset > svlen)
		1792	len = svlen - offset;
		1793
		1794	{
		1795	dREQ;
		1796
		1797	req->type = ix;
		1798	req->sv2 = SvREFCNT_inc (data);
		1799	req->ptr2 = (char *)svptr + offset;
		1800	req->size = len;
		1801	req->int1 = flags;
		1802
		1803	REQ_SEND;
		1804	}
		1805	}
		1806
		1807	void
		1808	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1809	PPCODE:
		1810	{
		1811	STRLEN svlen;
		1812	char *svptr = SvPVbyte (data, svlen);
		1813	UV len = SvUV (length);
		1814
		1815	if (offset < 0)
		1816	offset += svlen;
		1817
		1818	if (offset < 0 || offset > svlen)
		1819	croak ("offset outside of scalar");
		1820
		1821	if (!SvOK (length) || len + offset > svlen)
		1822	len = svlen - offset;
		1823
		1824	{
		1825	dREQ;
		1826
		1827	req->type = EIO_MLOCK;
		1828	req->sv2 = SvREFCNT_inc (data);
		1829	req->ptr2 = (char *)svptr + offset;
		1830	req->size = len;
		1831
		1832	REQ_SEND;
		1833	}
		1834	}
		1835
		1836	void
		1837	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1838	PPCODE:
		1839	{
		1840	dREQ;
		1841
		1842	req->type = EIO_MLOCKALL;
		1843	req->int1 = flags;
		1844
		1845	REQ_SEND;
		1846	}
		1847
		1848	void
		1849	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1850	PPCODE:
		1851	{
		1852	int fd = s_fileno_croak (fh, 0);
		1853	dREQ;
		1854
		1855	req->type = EIO_CUSTOM;
		1856	req->sv1 = newSVsv (fh);
		1857	req->int1 = fd;
		1858
		1859	req->feed = fiemap;
		1860	#if HAVE_FIEMAP
		1861	/* keep our fingers crossed that the next two types are 64 bit */
		1862	req->offs = start;
		1863	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1864	req->int2 = flags;
		1865	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1866	#endif
		1867
		1868	REQ_SEND;
		1869	}
		1870
		1871	void
		1872	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1873	PPCODE:
		1874	{
		1875	char *svptr = 0;
		1876
		1877	sv_clear_foreign (data);
		1878
		1879	if (length) /* known length, directly read into scalar */
		1880	{
		1881	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1882	svptr = sv_grow (data, length + 1);
		1883	else if (SvCUR (data) < length)
		1884	croak ("length outside of scalar, and cannot grow");
		1885	else
		1886	svptr = SvPVbyte_nolen (data);
		1887	}
		1888
		1889	{
		1890	dREQ;
		1891
		1892	req->type = EIO_SLURP;
		1893	req_set_path1 (req, pathname);
		1894	req->offs = offset;
		1895	req->size = length;
		1896	req->sv2 = SvREFCNT_inc (data);
		1897	req->ptr2 = svptr;
		1898
		1899	if (!SvREADONLY (data))
		1900	{
		1901	SvREADONLY_on (data);
		1902	req->flags |= FLAG_SV2_RO_OFF;
		1903	}
		1904
		1905	REQ_SEND;
		1906	}
		1907	}
		1908
		1909	void
1061	aio_busy (double delay, SV *callback=&PL_sv_undef)	1910	aio_busy (double delay, SV *callback = &PL_sv_undef)
1062	PPCODE:	1911	PPCODE:
1063	{	1912	{
1064	dREQ;	1913	dREQ;
1065		1914
1066	req->type = EIO_BUSY;	1915	req->type = EIO_BUSY;
…		…
1068		1917
1069	REQ_SEND;	1918	REQ_SEND;
1070	}	1919	}
1071		1920
1072	void	1921	void
1073	aio_group (SV *callback=&PL_sv_undef)	1922	aio_group (SV *callback = &PL_sv_undef)
1074	PROTOTYPE: ;$
1075	PPCODE:	1923	PPCODE:
1076	{	1924	{
1077	dREQ;	1925	dREQ;
1078		1926
1079	req->type = EIO_GROUP;	1927	req->type = EIO_GROUP;
1080		1928
		1929	PUTBACK;
1081	req_submit (req);	1930	req_submit (req);
		1931	SPAGAIN;
		1932
1082	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1933	XPUSHs (req_sv (req, aio_grp_stash));
1083	}	1934	}
1084		1935
1085	void	1936	void
1086	aio_nop (SV *callback=&PL_sv_undef)	1937	aio_nop (SV *callback = &PL_sv_undef)
1087	ALIAS:	1938	ALIAS:
1088	aio_nop = EIO_NOP	1939	aio_nop = EIO_NOP
1089	aio_sync = EIO_SYNC	1940	aio_sync = EIO_SYNC
1090	PPCODE:	1941	PPCODE:
1091	{	1942	{
…		…
1095		1946
1096	REQ_SEND;	1947	REQ_SEND;
1097	}	1948	}
1098		1949
1099	int	1950	int
1100	aioreq_pri (int pri = 0)	1951	aioreq_pri (int pri = NO_INIT)
1101	PROTOTYPE: ;$
1102	CODE:	1952	CODE:
1103	RETVAL = next_pri;	1953	RETVAL = next_pri;
1104	if (items > 0)	1954	if (items > 0)
1105	{	1955	{
1106	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1956	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1118	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1968	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1119	next_pri = nice;	1969	next_pri = nice;
1120		1970
1121	void	1971	void
1122	flush ()	1972	flush ()
1123	PROTOTYPE:
1124	CODE:	1973	CODE:
1125	while (eio_nreqs ())	1974	while (eio_nreqs ())
1126	{	1975	{
1127	poll_wait ();	1976	poll_wait ();
1128	poll_cb ();	1977	poll_cb ();
1129	}	1978	}
1130		1979
1131	int	1980	int
1132	poll()	1981	poll ()
1133	PROTOTYPE:
1134	CODE:	1982	CODE:
1135	poll_wait ();	1983	poll_wait ();
1136	RETVAL = poll_cb ();	1984	RETVAL = poll_cb ();
1137	OUTPUT:	1985	OUTPUT:
1138	RETVAL	1986	RETVAL
1139		1987
1140	int	1988	int
1141	poll_fileno()	1989	poll_fileno ()
1142	PROTOTYPE:
1143	CODE:	1990	CODE:
1144	RETVAL = respipe [0];	1991	RETVAL = s_epipe_fd (&respipe);
1145	OUTPUT:	1992	OUTPUT:
1146	RETVAL	1993	RETVAL
1147		1994
1148	int	1995	int
1149	poll_cb(...)	1996	poll_cb (...)
1150	PROTOTYPE:	1997	PROTOTYPE:
1151	CODE:	1998	CODE:
1152	RETVAL = poll_cb ();	1999	RETVAL = poll_cb ();
1153	OUTPUT:	2000	OUTPUT:
1154	RETVAL	2001	RETVAL
1155		2002
1156	void	2003	void
1157	poll_wait()	2004	poll_wait ()
1158	PROTOTYPE:
1159	CODE:	2005	CODE:
1160	poll_wait ();	2006	poll_wait ();
1161		2007
1162	int	2008	int
1163	nreqs()	2009	nreqs ()
1164	PROTOTYPE:
1165	CODE:	2010	CODE:
1166	RETVAL = eio_nreqs ();	2011	RETVAL = eio_nreqs ();
1167	OUTPUT:	2012	OUTPUT:
1168	RETVAL	2013	RETVAL
1169		2014
1170	int	2015	int
1171	nready()	2016	nready ()
1172	PROTOTYPE:
1173	CODE:	2017	CODE:
1174	RETVAL = eio_nready ();	2018	RETVAL = eio_nready ();
1175	OUTPUT:	2019	OUTPUT:
1176	RETVAL	2020	RETVAL
1177		2021
1178	int	2022	int
1179	npending()	2023	npending ()
1180	PROTOTYPE:
1181	CODE:	2024	CODE:
1182	RETVAL = eio_npending ();	2025	RETVAL = eio_npending ();
1183	OUTPUT:	2026	OUTPUT:
1184	RETVAL	2027	RETVAL
1185		2028
1186	int	2029	int
1187	nthreads()	2030	nthreads ()
1188	PROTOTYPE:
1189	CODE:	2031	CODE:
1190	RETVAL = eio_nthreads ();	2032	RETVAL = eio_nthreads ();
1191	OUTPUT:	2033	OUTPUT:
1192	RETVAL	2034	RETVAL
1193		2035
1194	int	2036	int
1195	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	2037	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1196	PROTOTYPE: $$$$
1197	CODE:	2038	CODE:
1198	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1199	RETVAL = posix_fadvise (fh, offset, length, advice);	2039	RETVAL = posix_fadvise (fh, offset, length, advice);
1200	#else
1201	RETVAL = errno = ENOSYS;
1202	#endif
1203	OUTPUT:	2040	OUTPUT:
1204	RETVAL	2041	RETVAL
1205		2042
1206	ssize_t	2043	IV
1207	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	2044	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1208	PROTOTYPE: $$$$
1209	CODE:	2045	CODE:
1210	eio_sendfile_sync (ofh, ifh, offset, count);	2046	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		2047	OUTPUT:
		2048	RETVAL
		2049
		2050	void
		2051	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		2052	PPCODE:
		2053	sv_clear_foreign (scalar);
		2054	{
		2055	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		2056	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		2057	if (addr == (void *)-1)
		2058	XSRETURN_NO;
		2059
		2060	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
		2061
		2062	if (!(prot & PROT_WRITE))
		2063	SvREADONLY_on (scalar);
		2064
		2065	XSRETURN_YES;
		2066	}
		2067
		2068	void
		2069	munmap (SV *scalar)
		2070	CODE:
		2071	sv_clear_foreign (scalar);
		2072
		2073	SV *
		2074	mremap (SV *scalar, STRLEN new_length, int flags = 0, IV new_address = 0)
		2075	CODE:
		2076	{
		2077	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2078	void *new;
		2079
		2080	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2081	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2082
		2083	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2084
		2085	RETVAL = &PL_sv_no;
		2086
		2087	if (new != (void *)-1)
		2088	{
		2089	RETVAL = new == (void *)mg->mg_ptr
		2090	? newSVpvn ("0 but true", 10)
		2091	: &PL_sv_yes;
		2092
		2093	mg->mg_ptr = (char *)new;
		2094	mg->mg_obj = (SV *)new_length;
		2095
		2096	SvPVX (scalar) = mg->mg_ptr;
		2097	SvCUR_set (scalar, new_length);
		2098	}
		2099	}
		2100	OUTPUT:
		2101	RETVAL
		2102
		2103	int
		2104	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		2105	ALIAS:
		2106	mprotect = 1
		2107	CODE:
		2108	{
		2109	STRLEN svlen;
		2110	void *addr = SvPVbyte (scalar, svlen);
		2111	STRLEN len = SvUV (length);
		2112
		2113	if (offset < 0)
		2114	offset += svlen;
		2115
		2116	if (offset < 0 || offset > svlen)
		2117	croak ("offset outside of scalar");
		2118
		2119	if (!SvOK (length) || len + offset > svlen)
		2120	len = svlen - offset;
		2121
		2122	addr = (void *)(((intptr_t)addr) + offset);
		2123	eio_page_align (&addr, &len);
		2124
		2125	switch (ix)
		2126	{
		2127	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		2128	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		2129	}
		2130	}
		2131	OUTPUT:
		2132	RETVAL
		2133
		2134	int
		2135	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		2136	CODE:
		2137	{
		2138	STRLEN svlen;
		2139	void *addr = SvPVbyte (scalar, svlen);
		2140	size_t len = SvUV (length);
		2141
		2142	if (offset < 0)
		2143	offset += svlen;
		2144
		2145	if (offset < 0 || offset > svlen)
		2146	croak ("offset outside of scalar");
		2147
		2148	if (!SvOK (length) || len + offset > svlen)
		2149	len = svlen - offset;
		2150
		2151	addr = (void *)(((intptr_t)addr) + offset);
		2152	eio_page_align (&addr, &len);
		2153	#if _POSIX_MEMLOCK_RANGE
		2154	RETVAL = munlock (addr, len);
		2155	#else
		2156	RETVAL = EIO_ENOSYS ();
		2157	#endif
		2158	}
		2159	OUTPUT:
		2160	RETVAL
		2161
		2162	int
		2163	munlockall ()
		2164	CODE:
		2165	#if _POSIX_MEMLOCK
		2166	munlockall ();
		2167	#else
		2168	RETVAL = EIO_ENOSYS ();
		2169	#endif
		2170	OUTPUT:
		2171	RETVAL
		2172
		2173	int
		2174	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2175	CODE:
		2176	{
		2177	#if HAVE_LINUX_SPLICE
		2178	loff_t off_in_, off_out_;
		2179	RETVAL = splice (
		2180	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2181	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2182	length, flags
		2183	);
		2184	#else
		2185	RETVAL = EIO_ENOSYS ();
		2186	#endif
		2187	}
		2188	OUTPUT:
		2189	RETVAL
		2190
		2191	int
		2192	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2193	CODE:
		2194	#if HAVE_LINUX_SPLICE
		2195	RETVAL = tee (rfh, wfh, length, flags);
		2196	#else
		2197	RETVAL = EIO_ENOSYS ();
		2198	#endif
		2199	OUTPUT:
		2200	RETVAL
		2201
		2202	int
		2203	pipesize (aio_rfd rfh, int new_size = -1)
		2204	PROTOTYPE: $;$
		2205	CODE:
		2206	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2207	if (new_size >= 0)
		2208	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2209	else
		2210	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2211	#else
		2212	errno = ENOSYS;
		2213	RETVAL = -1;
		2214	#endif
		2215	OUTPUT:
		2216	RETVAL
		2217
		2218	void
		2219	pipe2 (int flags = 0)
		2220	PROTOTYPE: ;$
		2221	PPCODE:
		2222	{
		2223	int fd[2];
		2224	int res;
		2225
		2226	if (flags)
		2227	#if HAVE_PIPE2
		2228	res = pipe2 (fd, flags);
		2229	#else
		2230	res = (errno = ENOSYS, -1);
		2231	#endif
		2232	else
		2233	res = pipe (fd);
		2234
		2235	if (!res)
		2236	{
		2237	EXTEND (SP, 2);
		2238	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2239	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2240	}
		2241	}
		2242
		2243	void
		2244	eventfd (unsigned int initval = 0, int flags = 0)
		2245	PPCODE:
		2246	{
		2247	int fd;
		2248	#if HAVE_EVENTFD
		2249	fd = eventfd (initval, flags);
		2250	#else
		2251	fd = (errno = ENOSYS, -1);
		2252	#endif
		2253
		2254	XPUSHs (newmortalFH (fd, O_RDWR));
		2255	}
		2256
		2257	void
		2258	timerfd_create (int clockid, int flags = 0)
		2259	PPCODE:
		2260	{
		2261	int fd;
		2262	#if HAVE_TIMERFD
		2263	fd = timerfd_create (clockid, flags);
		2264	#else
		2265	fd = (errno = ENOSYS, -1);
		2266	#endif
		2267
		2268	XPUSHs (newmortalFH (fd, O_RDWR));
		2269	}
		2270
		2271	void
		2272	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2273	PPCODE:
		2274	{
		2275	int fd = s_fileno_croak (fh, 0);
		2276	#if HAVE_TIMERFD
		2277	int res;
		2278	struct itimerspec its, ots;
		2279
		2280	ts_set (&its.it_interval, interval);
		2281	ts_set (&its.it_value , value);
		2282	res = timerfd_settime (fd, flags, &its, &ots);
		2283
		2284	if (!res)
		2285	{
		2286	EXTEND (SP, 2);
		2287	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2288	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2289	}
		2290	#else
		2291	errno = ENOSYS;
		2292	#endif
		2293	}
		2294
		2295	void
		2296	timerfd_gettime (SV *fh)
		2297	PPCODE:
		2298	{
		2299	int fd = s_fileno_croak (fh, 0);
		2300	#if HAVE_TIMERFD
		2301	int res;
		2302	struct itimerspec ots;
		2303	res = timerfd_gettime (fd, &ots);
		2304
		2305	if (!res)
		2306	{
		2307	EXTEND (SP, 2);
		2308	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2309	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2310	}
		2311	#else
		2312	errno = ENOSYS;
		2313	#endif
		2314	}
		2315
		2316	UV
		2317	get_fdlimit ()
		2318	CODE:
		2319	#if HAVE_RLIMITS
		2320	struct rlimit rl;
		2321	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2322	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2323	#endif
		2324	XSRETURN_UNDEF;
		2325	OUTPUT:
		2326	RETVAL
		2327
		2328	void
		2329	min_fdlimit (UV limit = 0x7fffffffU)
		2330	CODE:
		2331	{
		2332	#if HAVE_RLIMITS
		2333	struct rlimit rl;
		2334	rlim_t orig_rlim_max;
		2335	UV bit;
		2336
		2337	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2338	goto fail;
		2339
		2340	if (rl.rlim_cur == RLIM_INFINITY)
		2341	XSRETURN_YES;
		2342
		2343	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2344
		2345	if (rl.rlim_cur < limit)
		2346	{
		2347	rl.rlim_cur = limit;
		2348
		2349	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2350	rl.rlim_max = rl.rlim_cur;
		2351	}
		2352
		2353	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2354	XSRETURN_YES;
		2355
		2356	if (errno == EPERM)
		2357	{
		2358	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2359	/* our limit overflows a system-wide limit */
		2360	/* try an adaptive algorithm, but do not lower the hardlimit */
		2361	rl.rlim_max = 0;
		2362	for (bit = 0x40000000U; bit; bit >>= 1)
		2363	{
		2364	rl.rlim_max |= bit;
		2365	rl.rlim_cur = rl.rlim_max;
		2366
		2367	/* nevr decrease the hard limit */
		2368	if (rl.rlim_max < orig_rlim_max)
		2369	break;
		2370
		2371	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2372	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2373	}
		2374
		2375	/* now, raise the soft limit to the max permitted */
		2376	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2377	{
		2378	rl.rlim_cur = rl.rlim_max;
		2379	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2380	errno = EPERM;
		2381	}
		2382	}
		2383	#endif
		2384	fail:
		2385	XSRETURN_UNDEF;
		2386	}
1211		2387
1212	void _on_next_submit (SV *cb)	2388	void _on_next_submit (SV *cb)
1213	CODE:	2389	CODE:
1214	SvREFCNT_dec (on_next_submit);	2390	SvREFCNT_dec (on_next_submit);
1215	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2391	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1216		2392
1217	PROTOTYPES: DISABLE	2393	PROTOTYPES: DISABLE
1218		2394
		2395	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2396
		2397	BOOT:
		2398	{
		2399	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2400	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2401	}
		2402
		2403	void
		2404	DESTROY (SV *self)
		2405	CODE:
		2406	{
		2407	aio_wd wd = SvAIO_WD (self);
		2408	#if HAVE_AT
		2409	{
		2410	SV *callback = &PL_sv_undef;
		2411	dREQ; /* clobbers next_pri :/ */
		2412	next_pri = req->pri; /* restore next_pri */
		2413	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2414	req->type = EIO_WD_CLOSE;
		2415	req->wd = wd;
		2416	REQ_SEND;
		2417	}
		2418	#else
		2419	eio_wd_close_sync (wd);
		2420	#endif
		2421	}
		2422
1219	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2423	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1220		2424
1221	void	2425	void
1222	cancel (aio_req_ornot req)	2426	cancel (aio_req_ornot req)
1223	CODE:	2427	CODE:
1224	eio_cancel (req);	2428	eio_cancel (req);
1225		2429
1226	void	2430	void
1227	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2431	cb (aio_req_ornot req, SV *callback = NO_INIT)
1228	PPCODE:	2432	PPCODE:
1229	{	2433	{
1230	if (GIMME_V != G_VOID)	2434	if (GIMME_V != G_VOID)
1231	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2435	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1232		2436
…		…
1297	limit (aio_req grp, int limit)	2501	limit (aio_req grp, int limit)
1298	CODE:	2502	CODE:
1299	eio_grp_limit (grp, limit);	2503	eio_grp_limit (grp, limit);
1300		2504
1301	void	2505	void
1302	feed (aio_req grp, SV *callback=&PL_sv_undef)	2506	feed (aio_req grp, SV *callback = &PL_sv_undef)
1303	CODE:	2507	CODE:
1304	{	2508	{
1305	SvREFCNT_dec (grp->sv2);	2509	SvREFCNT_dec (grp->sv2);
1306	grp->sv2 = newSVsv (callback);	2510	grp->sv2 = newSVsv (callback);
1307	grp->feed = aio_grp_feed;	2511	grp->feed = aio_grp_feed;

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