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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.148 by root, Wed Jun 17 01:14:48 2009 UTC vs.
Revision 1.259 by root, Sun Jul 22 20:39:19 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	#endif
123
124	#ifndef POSIX_FADV_SEQUENTIAL
125	# define POSIX_FADV_SEQUENTIAL 0
126	#endif
127
128	#ifndef POSIX_FADV_RANDOM
129	# define POSIX_FADV_RANDOM 0
130	#endif
131
132	#ifndef POSIX_FADV_NOREUSE
133	# define POSIX_FADV_NOREUSE 0
134	#endif
135
136	#ifndef POSIX_FADV_WILLNEED
137	# define POSIX_FADV_WILLNEED 0
138	#endif
139
140	#ifndef POSIX_FADV_DONTNEED
141	# define POSIX_FADV_DONTNEED 0
142	#endif
143		144
144	static int req_invoke (eio_req *req);	145	static int req_invoke (eio_req *req);
145	#define EIO_FINISH(req) req_invoke (req)	146	#define EIO_FINISH(req) req_invoke (req)
146	static void req_destroy (eio_req *grp);	147	static void req_destroy (eio_req *grp);
147	#define EIO_DESTROY(req) req_destroy (req)	148	#define EIO_DESTROY(req) req_destroy (req)
148		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
149	enum {	381	enum {
150	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	382	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
151	};	383	};
152		384
153	#include "libeio/eio.c"
154
155	typedef eio_req *aio_req;	385	typedef eio_req *aio_req;
156	typedef eio_req *aio_req_ornot;	386	typedef eio_req *aio_req_ornot;
		387	typedef eio_wd aio_wd;
157		388
158	static SV *on_next_submit;	389	static SV *on_next_submit;
159	static int next_pri = EIO_PRI_DEFAULT;	390	static int next_pri = EIO_PRI_DEFAULT;
160	static int max_outstanding;	391	static int max_outstanding;
161		392
162	static int respipe_osf [2], respipe [2] = { -1, -1 };	393	static s_epipe respipe;
163		394
164	static void req_destroy (aio_req req);	395	static void req_destroy (aio_req req);
165	static void req_cancel (aio_req req);	396	static void req_cancel (aio_req req);
166		397
167	static void want_poll (void)	398	static void
		399	want_poll (void)
168	{	400	{
169	/* write a dummy byte to the pipe so fh becomes ready */	401	/* write a dummy byte to the pipe so fh becomes ready */
170	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	402	s_epipe_signal (&respipe);
171	}	403	}
172		404
173	static void done_poll (void)	405	static void
		406	done_poll (void)
174	{	407	{
175	/* read any signals sent by the worker threads */	408	/* read any signals sent by the worker threads */
176	char buf [4];	409	s_epipe_drain (&respipe);
177	while (respipe_read (respipe [0], buf, 4) == 4)
178	;
179	}	410	}
180		411
181	/* must be called at most once */	412	/* must be called at most once */
182	static SV *req_sv (aio_req req, const char *klass)	413	static SV *
		414	req_sv (aio_req req, HV *stash)
183	{	415	{
184	if (!req->self)	416	if (!req->self)
185	{	417	{
186	req->self = (SV *)newHV ();	418	req->self = (SV *)newHV ();
187	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	419	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
188	}	420	}
189		421
190	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	422	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
191	}	423	}
192		424
193	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)
194	{	433	{
195	MAGIC *mg;	434	MAGIC *mg;
196		435
197	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")))
198	croak ("object of class " AIO_REQ_KLASS " expected");	441	croak ("object of class IO::AIO::REQ expected");
199		442
200	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	443	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
201		444
202	return mg ? (aio_req)mg->mg_ptr : 0;	445	return mg ? (aio_req)mg->mg_ptr : 0;
203	}	446	}
204		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
205	static void aio_grp_feed (aio_req grp)	485	aio_grp_feed (aio_req grp)
206	{	486	{
207	if (grp->sv2 && SvOK (grp->sv2))	487	if (grp->sv2 && SvOK (grp->sv2))
208	{	488	{
209	dSP;	489	dSP;
210		490
211	ENTER;	491	ENTER;
212	SAVETMPS;	492	SAVETMPS;
213	PUSHMARK (SP);	493	PUSHMARK (SP);
214	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	494	XPUSHs (req_sv (grp, aio_grp_stash));
215	PUTBACK;	495	PUTBACK;
216	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	496	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
217	SPAGAIN;	497	SPAGAIN;
218	FREETMPS;	498	FREETMPS;
219	LEAVE;	499	LEAVE;
220	}	500	}
221	}	501	}
222		502
		503	static void
223	static void req_submit (eio_req *req)	504	req_submit (eio_req *req)
224	{	505	{
225	eio_submit (req);	506	eio_submit (req);
226		507
227	if (expect_false (on_next_submit))	508	if (expect_false (on_next_submit))
228	{	509	{
…		…
235	PUTBACK;	516	PUTBACK;
236	call_sv (cb, G_DISCARD | G_EVAL);	517	call_sv (cb, G_DISCARD | G_EVAL);
237	}	518	}
238	}	519	}
239		520
		521	static int
240	static int req_invoke (eio_req *req)	522	req_invoke (eio_req *req)
241	{	523	{
242	dSP;
243
244	if (req->flags & FLAG_SV2_RO_OFF)	524	if (req->flags & FLAG_SV2_RO_OFF)
245	SvREADONLY_off (req->sv2);	525	SvREADONLY_off (req->sv2);
246		526
247	if (!EIO_CANCELLED (req) && req->callback)	527	if (!EIO_CANCELLED (req) && req->callback)
248	{	528	{
		529	dSP;
		530	static SV *sv_result_cache; /* caches the result integer SV */
		531	SV *sv_result;
		532
249	ENTER;	533	ENTER;
250	SAVETMPS;	534	SAVETMPS;
251	PUSHMARK (SP);	535	PUSHMARK (SP);
252	EXTEND (SP, 1);	536	EXTEND (SP, 1);
253		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
254	switch (req->type)	551	switch (req->type)
255	{	552	{
		553	case EIO_WD_OPEN:
		554	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		555	break;
		556
256	case EIO_READDIR:	557	case EIO_READDIR:
257	{	558	{
258	SV *rv = &PL_sv_undef;	559	SV *rv = &PL_sv_undef;
259		560
260	if (req->result >= 0)	561	if (req->result >= 0)
…		…
313	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))));
314	}	615	}
315	break;	616	break;
316		617
317	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:
318	{	624	{
319	/* convert fd to fh */
320	SV *fh = &PL_sv_undef;	625	SV *rv = &PL_sv_undef;
321		626
		627	#ifndef _WIN32
322	if (req->result >= 0)	628	if (req->result >= 0)
323	{	629	{
		630	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
324	GV *gv = (GV *)sv_newmortal ();	631	HV *hv = newHV ();
325	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	632	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
326	char sym [64];	633	* chooses to make it a struct.
327	int symlen;
328		634	*/
329	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);	635	unsigned long fsid = 0;
330	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));
331		637
332	symlen = snprintf (	638	rv = sv_2mortal (newRV_noinc ((SV *)hv));
333	sym,
334	sizeof (sym),
335	"%s&=%d",
336	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
337	(int)req->result
338	);
339		639
340	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	640	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
341	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);
342	}	651	}
		652	#endif
343		653
344	PUSHs (fh);	654	PUSHs (rv);
345	}	655	}
		656
346	break;	657	break;
347		658
348	case EIO_GROUP:	659	case EIO_GROUP:
349	req->int1 = 2; /* mark group as finished */	660	req->int1 = 2; /* mark group as finished */
350		661
…		…
362	case EIO_NOP:	673	case EIO_NOP:
363	case EIO_BUSY:	674	case EIO_BUSY:
364	break;	675	break;
365		676
366	case EIO_READLINK:	677	case EIO_READLINK:
		678	case EIO_REALPATH:
367	if (req->result > 0)	679	if (req->result > 0)
368	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	680	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
369	break;	681	break;
370		682
371	case EIO_STAT:	683	case EIO_STAT:
372	case EIO_LSTAT:	684	case EIO_LSTAT:
373	case EIO_FSTAT:	685	case EIO_FSTAT:
374	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	686	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		687
375	PL_laststatval = req->result;	688	if (!(PL_laststatval = req->result))
		689	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
376	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	690	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
377	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)));
378	break;	697	break;
379		698
380	case EIO_READ:	699	case EIO_READ:
381	{	700	{
382	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));
383	*SvEND (req->sv2) = 0;	702	*SvEND (req->sv2) = 0;
384	SvPOK_only (req->sv2);	703	SvPOK_only (req->sv2);
385	SvSETMAGIC (req->sv2);	704	SvSETMAGIC (req->sv2);
386	PUSHs (sv_2mortal (newSViv (req->result)));	705	PUSHs (sv_result);
387	}	706	}
388	break;	707	break;
389		708
390	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 */
391	if (req->result > 0)	774	if (req->result > 0)
392	req->result = 0;	775	SvIV_set (sv_result, 0);
393	/* FALLTHROUGH */	776	/* FALLTHROUGH */
394		777
395	default:	778	default:
396	PUSHs (sv_2mortal (newSViv (req->result)));	779	PUSHs (sv_result);
397	break;	780	break;
398	}	781	}
399		782
400	errno = req->errorno;	783	errno = req->errorno;
401		784
402	PUTBACK;	785	PUTBACK;
403	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	786	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
404	SPAGAIN;	787	SPAGAIN;
405		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
406	FREETMPS;	794	FREETMPS;
407	LEAVE;	795	LEAVE;
408		796
409	PUTBACK;	797	PUTBACK;
410	}	798	}
411		799
412	return !!SvTRUE (ERRSV);	800	return !!SvTRUE (ERRSV);
413	}	801	}
414		802
		803	static void
415	static void req_destroy (aio_req req)	804	req_destroy (aio_req req)
416	{	805	{
417	if (req->self)	806	if (req->self)
418	{	807	{
419	sv_unmagic (req->self, PERL_MAGIC_ext);	808	sv_unmagic (req->self, PERL_MAGIC_ext);
420	SvREFCNT_dec (req->self);	809	SvREFCNT_dec (req->self);
421	}	810	}
422		811
423	SvREFCNT_dec (req->sv1);	812	SvREFCNT_dec (req->sv1);
424	SvREFCNT_dec (req->sv2);	813	SvREFCNT_dec (req->sv2);
		814	SvREFCNT_dec (req->sv3);
		815	SvREFCNT_dec (req->sv4);
425	SvREFCNT_dec (req->callback);	816	SvREFCNT_dec (req->callback);
426		817
427	Safefree (req);	818	free (req);
428	}	819	}
429		820
		821	static void
430	static void req_cancel_subs (aio_req grp)	822	req_cancel_subs (aio_req grp)
431	{	823	{
432	aio_req sub;
433
434	if (grp->type != EIO_GROUP)	824	if (grp->type != EIO_GROUP)
435	return;	825	return;
436		826
437	SvREFCNT_dec (grp->sv2);	827	SvREFCNT_dec (grp->sv2);
438	grp->sv2 = 0;	828	grp->sv2 = 0;
439		829
440	eio_grp_cancel (grp);	830	eio_grp_cancel (grp);
441	}	831	}
442		832
443	#ifdef USE_SOCKETS_AS_HANDLES	833	static void ecb_cold
444	# define TO_SOCKET(x) (win32_get_osfhandle (x))	834	create_respipe (void)
445	#else	835	{
446	# define TO_SOCKET(x) (x)	836	if (s_epipe_renew (&respipe))
447	#endif	837	croak ("IO::AIO: unable to initialize result pipe");
		838	}
448		839
449	static void	840	static void
450	create_respipe (void)	841	poll_wait (void)
451	{	842	{
452	int old_readfd = respipe [0];
453
454	if (respipe [1] >= 0)
455	respipe_close (TO_SOCKET (respipe [1]));
456
457	#ifdef _WIN32
458	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
459	#else
460	if (pipe (respipe))
461	#endif
462	croak ("unable to initialize result pipe");
463
464	if (old_readfd >= 0)
465	{
466	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
467	croak ("unable to initialize result pipe(2)");
468
469	respipe_close (respipe [0]);
470	respipe [0] = old_readfd;
471	}
472
473	#ifdef _WIN32
474	int arg = 1;
475	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
476	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
477	#else
478	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
479	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
480	#endif
481	croak ("unable to initialize result pipe(3)");
482
483	respipe_osf [0] = TO_SOCKET (respipe [0]);
484	respipe_osf [1] = TO_SOCKET (respipe [1]);
485	}
486
487	static void poll_wait (void)
488	{
489	fd_set rfd;
490
491	while (eio_nreqs ())	843	while (eio_nreqs ())
492	{	844	{
493	int size;	845	int size;
494		846
495	X_LOCK (reslock);	847	X_LOCK (EIO_POOL->reslock);
496	size = res_queue.size;	848	size = EIO_POOL->res_queue.size;
497	X_UNLOCK (reslock);	849	X_UNLOCK (EIO_POOL->reslock);
498		850
499	if (size)	851	if (size)
500	return;	852	return;
501		853
502	etp_maybe_start_thread ();	854	etp_maybe_start_thread (EIO_POOL);
503		855
504	FD_ZERO (&rfd);	856	s_epipe_wait (&respipe);
505	FD_SET (respipe [0], &rfd);
506
507	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
508	}	857	}
509	}	858	}
510		859
511	static int poll_cb (void)	860	static int
		861	poll_cb (void)
512	{	862	{
513	for (;;)	863	for (;;)
514	{	864	{
515	int res = eio_poll ();	865	int res = eio_poll ();
516		866
…		…
522		872
523	poll_wait ();	873	poll_wait ();
524	}	874	}
525	}	875	}
526		876
527	static void atfork_child (void)	877	static void ecb_cold
		878	reinit (void)
528	{	879	{
529	create_respipe ();	880	create_respipe ();
		881
		882	if (eio_init (want_poll, done_poll) < 0)
		883	croak ("IO::AIO: unable to initialise eio library");
530	}	884	}
		885
		886	/*****************************************************************************/
531		887
532	static SV *	888	static SV *
533	get_cb (SV *cb_sv)	889	get_cb (SV *cb_sv)
534	{	890	{
535	HV *st;	891	SvGETMAGIC (cb_sv);
536	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	{
537	CV *cv;	898	SV *cb_cv;
		899	aio_req req;
		900	int req_pri = next_pri;
		901	next_pri = EIO_PRI_DEFAULT;
538		902
539	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
540	return 0;	912	return req;
541
542	cv = sv_2cv (cb_sv, &st, &gvp, 0);
543
544	if (!cv)
545	croak ("IO::AIO callback must be undef or a CODE reference");
546
547	return (SV *)cv;
548	}	913	}
549		914
550	#define dREQ \	915	#define dREQ \
551	SV *cb_cv; \	916	aio_req req = dreq (callback); \
552	aio_req req; \
553	int req_pri = next_pri; \
554	next_pri = EIO_PRI_DEFAULT; \
555	\
556	cb_cv = get_cb (callback); \
557	\
558	Newz (0, req, 1, eio_req); \
559	if (!req) \
560	croak ("out of memory during eio_req allocation"); \
561	\
562	req->callback = SvREFCNT_inc (cb_cv); \
563	req->pri = req_pri
564		917
565	#define REQ_SEND \	918	#define REQ_SEND \
566	PUTBACK; \	919	PUTBACK; \
567	req_submit (req); \	920	req_submit (req); \
568	SPAGAIN; \	921	SPAGAIN; \
569	\	922	\
570	if (GIMME_V != G_VOID) \	923	if (GIMME_V != G_VOID) \
571	XPUSHs (req_sv (req, AIO_REQ_KLASS));	924	XPUSHs (req_sv (req, aio_req_stash));
572		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
573	static int	992	static void
574	extract_fd (SV *fh, int wr)	993	ts_set (struct timespec *ts, NV value)
575	{	994	{
576	int fd = PerlIO_fileno (wr ? IoOFP (sv_2io (fh)) : IoIFP (sv_2io (fh)));	995	ts->tv_sec = value;
577		996	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
578	if (fd < 0)
579	croak ("illegal fh argument, either not an OS file or read/write mode mismatch");
580
581	return fd;
582	}	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;
583		1008
584	MODULE = IO::AIO PACKAGE = IO::AIO	1009	MODULE = IO::AIO PACKAGE = IO::AIO
585		1010
586	PROTOTYPES: ENABLE	1011	PROTOTYPES: ENABLE
587		1012
…		…
589	{	1014	{
590	static const struct {	1015	static const struct {
591	const char *name;	1016	const char *name;
592	IV iv;	1017	IV iv;
593	} *civ, const_iv[] = {	1018	} *civ, const_iv[] = {
594	# 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 },
595	# define const_eio(name) { # name, (IV) EIO_ ## name },	1021	# define const_eio(name) { # name, (IV) EIO_ ## name },
596	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 */
597	const_iv (ENOSYS , ENOSYS)	1025	const_iv (ENOSYS)
598	const_iv (O_RDONLY, O_RDONLY)	1026	const_iv (EXDEV)
599	const_iv (O_WRONLY, O_WRONLY)	1027	const_iv (EBADR)
600	const_iv (O_CREAT , O_CREAT)	1028
601	const_iv (O_TRUNC , O_TRUNC)	1029	/* for lseek */
602	#ifndef _WIN32	1030	const_iv (SEEK_DATA)
603	const_iv (S_IFIFO , S_IFIFO)	1031	const_iv (SEEK_HOLE)
604	#endif	1032
605	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	1033	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
606	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	1034	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
607	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	1035	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
608	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	1036	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
609	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	1037	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
610	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_ACCMODE)
		1048
		1049	const_iv (O_RDONLY)
		1050	const_iv (O_WRONLY)
		1051	const_iv (O_RDWR)
		1052	const_iv (O_CREAT)
		1053	const_iv (O_TRUNC)
		1054	const_iv (O_EXCL)
		1055	const_iv (O_APPEND)
		1056
		1057	const_iv (O_ASYNC)
		1058	const_iv (O_DIRECT)
		1059	const_iv (O_NOATIME)
		1060
		1061	const_iv (O_CLOEXEC)
		1062	const_iv (O_NOCTTY)
		1063	const_iv (O_NOFOLLOW)
		1064	const_iv (O_NONBLOCK)
		1065	const_iv (O_EXEC)
		1066	const_iv (O_SEARCH)
		1067	const_iv (O_DIRECTORY)
		1068	const_iv (O_DSYNC)
		1069	const_iv (O_RSYNC)
		1070	const_iv (O_SYNC)
		1071	const_iv (O_PATH)
		1072	const_iv (O_TMPFILE)
		1073	const_iv (O_TTY_INIT)
		1074
		1075	const_iv (S_IFIFO)
		1076	const_iv (S_IFCHR)
		1077	const_iv (S_IFBLK)
		1078	const_iv (S_IFLNK)
		1079	const_iv (S_IFREG)
		1080	const_iv (S_IFDIR)
		1081	const_iv (S_IFWHT)
		1082	const_iv (S_IFSOCK)
		1083	const_iv (S_IFMT)
		1084
		1085	const_iv (ST_RDONLY)
		1086	const_iv (ST_NOSUID)
		1087	const_iv (ST_NODEV)
		1088	const_iv (ST_NOEXEC)
		1089	const_iv (ST_SYNCHRONOUS)
		1090	const_iv (ST_MANDLOCK)
		1091	const_iv (ST_WRITE)
		1092	const_iv (ST_APPEND)
		1093	const_iv (ST_IMMUTABLE)
		1094	const_iv (ST_NOATIME)
		1095	const_iv (ST_NODIRATIME)
		1096	const_iv (ST_RELATIME)
		1097
		1098	const_iv (PROT_NONE)
		1099	const_iv (PROT_EXEC)
		1100	const_iv (PROT_READ)
		1101	const_iv (PROT_WRITE)
		1102
		1103	const_iv (MAP_PRIVATE)
		1104	const_iv (MAP_SHARED)
		1105	const_iv (MAP_FIXED)
		1106	const_iv (MAP_ANONYMOUS)
		1107
		1108	/* linuxish */
		1109	const_iv (MAP_LOCKED)
		1110	const_iv (MAP_NORESERVE)
		1111	const_iv (MAP_POPULATE)
		1112	const_iv (MAP_NONBLOCK)
		1113	const_iv (MAP_GROWSDOWN)
		1114	const_iv (MAP_32BIT)
		1115	const_iv (MAP_HUGETLB)
		1116	const_iv (MAP_STACK)
		1117
		1118	const_iv (MREMAP_MAYMOVE)
		1119	const_iv (MREMAP_FIXED)
		1120
		1121	const_iv (F_DUPFD_CLOEXEC)
		1122
		1123	const_iv (F_OFD_GETLK)
		1124	const_iv (F_OFD_SETLK)
		1125	const_iv (F_OFD_GETLKW)
		1126
		1127	const_iv (FIFREEZE)
		1128	const_iv (FITHAW)
		1129	const_iv (FITRIM)
		1130	const_iv (FICLONE)
		1131	const_iv (FICLONERANGE)
		1132	const_iv (FIDEDUPERANGE)
		1133
		1134	const_iv (FS_IOC_GETFLAGS)
		1135	const_iv (FS_IOC_SETFLAGS)
		1136	const_iv (FS_IOC_GETVERSION)
		1137	const_iv (FS_IOC_SETVERSION)
		1138	const_iv (FS_IOC_FIEMAP)
		1139	const_iv (FS_IOC_FSGETXATTR)
		1140	const_iv (FS_IOC_FSSETXATTR)
		1141	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1142	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1143	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1144
		1145	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1146
		1147	const_iv (FS_SECRM_FL)
		1148	const_iv (FS_UNRM_FL)
		1149	const_iv (FS_COMPR_FL)
		1150	const_iv (FS_SYNC_FL)
		1151	const_iv (FS_IMMUTABLE_FL)
		1152	const_iv (FS_APPEND_FL)
		1153	const_iv (FS_NODUMP_FL)
		1154	const_iv (FS_NOATIME_FL)
		1155	const_iv (FS_DIRTY_FL)
		1156	const_iv (FS_COMPRBLK_FL)
		1157	const_iv (FS_NOCOMP_FL)
		1158	const_iv (FS_ENCRYPT_FL)
		1159	const_iv (FS_BTREE_FL)
		1160	const_iv (FS_INDEX_FL)
		1161	const_iv (FS_JOURNAL_DATA_FL)
		1162	const_iv (FS_NOTAIL_FL)
		1163	const_iv (FS_DIRSYNC_FL)
		1164	const_iv (FS_TOPDIR_FL)
		1165	const_iv (FS_FL_USER_MODIFIABLE)
		1166
		1167	const_iv (FS_XFLAG_REALTIME)
		1168	const_iv (FS_XFLAG_PREALLOC)
		1169	const_iv (FS_XFLAG_IMMUTABLE)
		1170	const_iv (FS_XFLAG_APPEND)
		1171	const_iv (FS_XFLAG_SYNC)
		1172	const_iv (FS_XFLAG_NOATIME)
		1173	const_iv (FS_XFLAG_NODUMP)
		1174	const_iv (FS_XFLAG_RTINHERIT)
		1175	const_iv (FS_XFLAG_PROJINHERIT)
		1176	const_iv (FS_XFLAG_NOSYMLINKS)
		1177	const_iv (FS_XFLAG_EXTSIZE)
		1178	const_iv (FS_XFLAG_EXTSZINHERIT)
		1179	const_iv (FS_XFLAG_NODEFRAG)
		1180	const_iv (FS_XFLAG_FILESTREAM)
		1181	const_iv (FS_XFLAG_DAX)
		1182	const_iv (FS_XFLAG_HASATTR)
		1183
		1184	const_iv (FIEMAP_FLAG_SYNC)
		1185	const_iv (FIEMAP_FLAG_XATTR)
		1186	const_iv (FIEMAP_FLAGS_COMPAT)
		1187	const_iv (FIEMAP_EXTENT_LAST)
		1188	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1189	const_iv (FIEMAP_EXTENT_DELALLOC)
		1190	const_iv (FIEMAP_EXTENT_ENCODED)
		1191	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1192	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1193	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1194	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1195	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1196	const_iv (FIEMAP_EXTENT_MERGED)
		1197	const_iv (FIEMAP_EXTENT_SHARED)
		1198
		1199	const_iv (SPLICE_F_MOVE)
		1200	const_iv (SPLICE_F_NONBLOCK)
		1201	const_iv (SPLICE_F_MORE)
		1202	const_iv (SPLICE_F_GIFT)
		1203
		1204	const_iv (EFD_CLOEXEC)
		1205	const_iv (EFD_NONBLOCK)
		1206	const_iv (EFD_SEMAPHORE)
		1207
		1208	const_iv (CLOCK_REALTIME)
		1209	const_iv (CLOCK_MONOTONIC)
		1210	const_iv (CLOCK_BOOTTIME)
		1211	const_iv (CLOCK_REALTIME_ALARM)
		1212	const_iv (CLOCK_BOOTTIME_ALARM)
		1213
		1214	const_iv (TFD_NONBLOCK)
		1215	const_iv (TFD_CLOEXEC)
		1216
		1217	const_iv (TFD_TIMER_ABSTIME)
		1218	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1219
		1220	/* these are libeio constants, and are independent of gendef0 */
		1221	const_eio (SEEK_SET)
		1222	const_eio (SEEK_CUR)
		1223	const_eio (SEEK_END)
		1224
		1225	const_eio (MCL_FUTURE)
		1226	const_eio (MCL_CURRENT)
		1227
		1228	const_eio (MS_ASYNC)
		1229	const_eio (MS_INVALIDATE)
		1230	const_eio (MS_SYNC)
		1231
		1232	const_eio (MT_MODIFY)
611		1233
612	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1234	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
613	const_eio (SYNC_FILE_RANGE_WRITE)	1235	const_eio (SYNC_FILE_RANGE_WRITE)
614	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1236	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1237
		1238	const_eio (FALLOC_FL_KEEP_SIZE)
		1239	const_eio (FALLOC_FL_PUNCH_HOLE)
		1240	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1241	const_eio (FALLOC_FL_ZERO_RANGE)
		1242	const_eio (FALLOC_FL_INSERT_RANGE)
		1243	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1244
		1245	const_eio (RENAME_NOREPLACE)
		1246	const_eio (RENAME_EXCHANGE)
		1247	const_eio (RENAME_WHITEOUT)
615		1248
616	const_eio (READDIR_DENTS)	1249	const_eio (READDIR_DENTS)
617	const_eio (READDIR_DIRS_FIRST)	1250	const_eio (READDIR_DIRS_FIRST)
618	const_eio (READDIR_STAT_ORDER)	1251	const_eio (READDIR_STAT_ORDER)
619	const_eio (READDIR_FOUND_UNKNOWN)	1252	const_eio (READDIR_FOUND_UNKNOWN)
…		…
627	const_eio (DT_LNK)	1260	const_eio (DT_LNK)
628	const_eio (DT_SOCK)	1261	const_eio (DT_SOCK)
629	const_eio (DT_WHT)	1262	const_eio (DT_WHT)
630	};	1263	};
631		1264
632	stash = gv_stashpv ("IO::AIO", 1);	1265	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1266	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1267	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1268	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
633		1269
634	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1270	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
635	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1271	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
636		1272
637	create_respipe ();	1273	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
638		1274
639	if (eio_init (want_poll, done_poll) < 0)	1275	reinit ();
640	croak ("IO::AIO: unable to initialise eio library");
641
642	/* atfork child called in fifo order, so before eio's handler */
643	X_THREAD_ATFORK (0, 0, atfork_child);
644	}	1276	}
645		1277
646	void	1278	void
		1279	reinit ()
		1280	PROTOTYPE:
		1281
		1282	void
647	max_poll_reqs (int nreqs)	1283	max_poll_reqs (unsigned int nreqs)
648	PROTOTYPE: $	1284	PROTOTYPE: $
649	CODE:	1285	CODE:
650	eio_set_max_poll_reqs (nreqs);	1286	eio_set_max_poll_reqs (nreqs);
651		1287
652	void	1288	void
…		…
654	PROTOTYPE: $	1290	PROTOTYPE: $
655	CODE:	1291	CODE:
656	eio_set_max_poll_time (nseconds);	1292	eio_set_max_poll_time (nseconds);
657		1293
658	void	1294	void
659	min_parallel (int nthreads)	1295	min_parallel (unsigned int nthreads)
660	PROTOTYPE: $	1296	PROTOTYPE: $
661	CODE:	1297	CODE:
662	eio_set_min_parallel (nthreads);	1298	eio_set_min_parallel (nthreads);
663		1299
664	void	1300	void
665	max_parallel (int nthreads)	1301	max_parallel (unsigned int nthreads)
666	PROTOTYPE: $	1302	PROTOTYPE: $
667	CODE:	1303	CODE:
668	eio_set_max_parallel (nthreads);	1304	eio_set_max_parallel (nthreads);
669		1305
670	void	1306	void
671	max_idle (int nthreads)	1307	max_idle (unsigned int nthreads)
672	PROTOTYPE: $	1308	PROTOTYPE: $
673	CODE:	1309	CODE:
674	eio_set_max_idle (nthreads);	1310	eio_set_max_idle (nthreads);
675		1311
676	void	1312	void
		1313	idle_timeout (unsigned int seconds)
		1314	PROTOTYPE: $
		1315	CODE:
		1316	eio_set_idle_timeout (seconds);
		1317
		1318	void
677	max_outstanding (int maxreqs)	1319	max_outstanding (unsigned int maxreqs)
678	PROTOTYPE: $	1320	PROTOTYPE: $
679	CODE:	1321	CODE:
680	max_outstanding = maxreqs;	1322	max_outstanding = maxreqs;
681		1323
682	void	1324	void
683	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1325	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
684	PROTOTYPE: $$$;$
685	PPCODE:	1326	PPCODE:
686	{	1327	{
687	dREQ;	1328	dREQ;
688		1329
		1330	req->type = EIO_WD_OPEN;
		1331	req_set_path1 (req, pathname);
		1332
		1333	REQ_SEND;
		1334	}
		1335
		1336	void
		1337	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1338	PPCODE:
		1339	{
		1340	dREQ;
		1341
689	req->type = EIO_OPEN;	1342	req->type = EIO_OPEN;
690	req->sv1 = newSVsv (pathname);	1343	req_set_path1 (req, pathname);
691	req->ptr1 = SvPVbyte_nolen (req->sv1);
692	req->int1 = flags;	1344	req->int1 = flags;
693	req->int2 = mode;	1345	req->int2 = mode;
694		1346
695	REQ_SEND;	1347	REQ_SEND;
696	}	1348	}
697		1349
698	void	1350	void
699	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1351	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
700	PROTOTYPE: $;$
701	ALIAS:	1352	ALIAS:
702	aio_fsync = EIO_FSYNC	1353	aio_fsync = EIO_FSYNC
703	aio_fdatasync = EIO_FDATASYNC	1354	aio_fdatasync = EIO_FDATASYNC
		1355	aio_syncfs = EIO_SYNCFS
704	PPCODE:	1356	PPCODE:
705	{	1357	{
706	int fd = extract_fd (fh, 0);	1358	int fd = s_fileno_croak (fh, 0);
707	dREQ;	1359	dREQ;
708		1360
709	req->type = ix;	1361	req->type = ix;
710	req->sv1 = newSVsv (fh);	1362	req->sv1 = newSVsv (fh);
711	req->int1 = fd;	1363	req->int1 = fd;
712		1364
713	REQ_SEND (req);	1365	REQ_SEND;
714	}	1366	}
715		1367
716	void	1368	void
717	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1369	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
718	PROTOTYPE: $$$$;$
719	PPCODE:	1370	PPCODE:
720	{	1371	{
721	int fd = extract_fd (fh, 0);	1372	int fd = s_fileno_croak (fh, 0);
722	dREQ;	1373	dREQ;
723		1374
724	req->type = EIO_SYNC_FILE_RANGE;	1375	req->type = EIO_SYNC_FILE_RANGE;
725	req->sv1 = newSVsv (fh);	1376	req->sv1 = newSVsv (fh);
726	req->int1 = fd;	1377	req->int1 = fd;
727	req->offs = offset;	1378	req->offs = offset;
728	req->size = nbytes;	1379	req->size = nbytes;
729	req->int2 = flags;	1380	req->int2 = flags;
730		1381
731	REQ_SEND (req);	1382	REQ_SEND;
732	}	1383	}
733		1384
734	void	1385	void
735	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1386	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
736	PROTOTYPE: $;$
737	PPCODE:	1387	PPCODE:
738	{	1388	{
739	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1389	int fd = s_fileno_croak (fh, 0);
740	int fd = extract_fd (fh, 0);
741	dREQ;	1390	dREQ;
742		1391
743	if (close_pipe < 0)	1392	req->type = EIO_FALLOCATE;
		1393	req->sv1 = newSVsv (fh);
		1394	req->int1 = fd;
		1395	req->int2 = mode;
		1396	req->offs = offset;
		1397	req->size = len;
		1398
		1399	REQ_SEND;
		1400	}
		1401
		1402	void
		1403	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1404	PPCODE:
		1405	{
		1406	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1407	int fd = s_fileno_croak (fh, 0);
		1408	dREQ;
		1409
		1410	if (expect_false (close_fd < 0))
744	{	1411	{
745	int pipefd [2];	1412	int pipefd [2];
746		1413
		1414	if (
		1415	#ifdef _WIN32
		1416	_pipe (pipefd, 1, _O_BINARY) < 0
		1417	#else
747	if (pipe (pipefd) < 0	1418	pipe (pipefd) < 0
748	|| close (pipefd [1]) < 0
749	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1419	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1420	#endif
		1421	|| close (pipefd [1]) < 0
		1422	)
750	abort (); /*D*/	1423	abort (); /*D*/
751		1424
752	close_pipe = pipefd [0];	1425	close_fd = pipefd [0];
753	}	1426	}
754		1427
755	req->type = EIO_DUP2;	1428	req->type = EIO_DUP2;
756	req->int1 = close_pipe;	1429	req->int1 = close_fd;
757	req->sv2 = newSVsv (fh);	1430	req->sv2 = newSVsv (fh);
758	req->int2 = fd;	1431	req->int2 = fd;
759		1432
760	REQ_SEND (req);	1433	REQ_SEND;
761	}	1434	}
762		1435
763	void	1436	void
		1437	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1438	PPCODE:
		1439	{
		1440	int fd = s_fileno_croak (fh, 0);
		1441	dREQ;
		1442
		1443	req->type = EIO_SEEK;
		1444	req->sv1 = newSVsv (fh);
		1445	req->int1 = fd;
		1446	req->offs = SvVAL64 (offset);
		1447	req->int2 = whence;
		1448
		1449	REQ_SEND;
		1450	}
		1451
		1452	void
764	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1453	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
765	ALIAS:	1454	ALIAS:
766	aio_read = EIO_READ	1455	aio_read = EIO_READ
767	aio_write = EIO_WRITE	1456	aio_write = EIO_WRITE
768	PROTOTYPE: $$$$$;$
769	PPCODE:	1457	PPCODE:
770	{	1458	{
771	STRLEN svlen;	1459	STRLEN svlen;
772	int fd = extract_fd (fh, ix == EIO_WRITE);	1460	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
773	char *svptr = SvPVbyte (data, svlen);	1461	char *svptr = SvPVbyte (data, svlen);
774	UV len = SvUV (length);	1462	UV len = SvUV (length);
775		1463
776	if (dataoffset < 0)	1464	if (dataoffset < 0)
777	dataoffset += svlen;	1465	dataoffset += svlen;
…		…
786	len = svlen - dataoffset;	1474	len = svlen - dataoffset;
787	}	1475	}
788	else	1476	else
789	{	1477	{
790	/* read: check type and grow scalar as necessary */	1478	/* read: check type and grow scalar as necessary */
791	SvUPGRADE (data, SVt_PV);	1479	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
792	svptr = SvGROW (data, len + dataoffset + 1);	1480	svptr = sv_grow (data, len + dataoffset + 1);
		1481	else if (SvCUR (data) < len + dataoffset)
		1482	croak ("length + dataoffset outside of scalar, and cannot grow");
793	}	1483	}
794		1484
795	{	1485	{
796	dREQ;	1486	dREQ;
797		1487
…		…
813	REQ_SEND;	1503	REQ_SEND;
814	}	1504	}
815	}	1505	}
816		1506
817	void	1507	void
818	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1508	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
819	PROTOTYPE: $$;$	1509	ALIAS:
		1510	aio_ioctl = EIO_IOCTL
		1511	aio_fcntl = EIO_FCNTL
820	PPCODE:	1512	PPCODE:
821	{	1513	{
822	SV *data;	1514	int fd = s_fileno_croak (fh, 0);
		1515	char *svptr;
		1516
		1517	if (SvPOK (arg) || !SvNIOK (arg))
		1518	{
		1519	STRLEN svlen;
		1520	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1521	#ifdef IOCPARM_LEN
		1522	STRLEN need = IOCPARM_LEN (request);
		1523	#else
		1524	STRLEN need = 256;
		1525	#endif
		1526
		1527	if (svlen < need)
		1528	svptr = SvGROW (arg, need);
		1529	}
		1530	else
		1531	svptr = (char *)SvIV (arg);
		1532
		1533	{
		1534	dREQ;
		1535
		1536	req->type = ix;
		1537	req->sv1 = newSVsv (fh);
		1538	req->int1 = fd;
		1539	req->int2 = (long)request;
		1540	req->sv2 = SvREFCNT_inc (arg);
		1541	req->ptr2 = svptr;
		1542
		1543	REQ_SEND;
		1544	}
		1545	}
		1546
		1547	void
		1548	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1549	ALIAS:
		1550	aio_readlink = EIO_READLINK
		1551	aio_realpath = EIO_REALPATH
		1552	PPCODE:
		1553	{
823	dREQ;	1554	dREQ;
824		1555
825	req->type = EIO_READLINK;	1556	req->type = ix;
826	req->sv1 = newSVsv (path);	1557	req_set_path1 (req, pathname);
827	req->ptr1 = SvPVbyte_nolen (req->sv1);
828		1558
829	REQ_SEND;	1559	REQ_SEND;
830	}	1560	}
831		1561
832	void	1562	void
833	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1563	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
834	PROTOTYPE: $$$$;$
835	PPCODE:	1564	PPCODE:
836	{	1565	{
837	int ifd = extract_fd (in_fh , 0);	1566	int ifd = s_fileno_croak (in_fh , 0);
838	int ofd = extract_fd (out_fh, 0);	1567	int ofd = s_fileno_croak (out_fh, 1);
839	dREQ;	1568	dREQ;
840		1569
841	req->type = EIO_SENDFILE;	1570	req->type = EIO_SENDFILE;
842	req->sv1 = newSVsv (out_fh);	1571	req->sv1 = newSVsv (out_fh);
843	req->int1 = ofd;	1572	req->int1 = ofd;
…		…
848		1577
849	REQ_SEND;	1578	REQ_SEND;
850	}	1579	}
851		1580
852	void	1581	void
853	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1582	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
854	PROTOTYPE: $$$;$
855	PPCODE:	1583	PPCODE:
856	{	1584	{
857	int fd = extract_fd (fh, 0);	1585	int fd = s_fileno_croak (fh, 0);
858	dREQ;	1586	dREQ;
859		1587
860	req->type = EIO_READAHEAD;	1588	req->type = EIO_READAHEAD;
861	req->sv1 = newSVsv (fh);	1589	req->sv1 = newSVsv (fh);
862	req->int1 = fd;	1590	req->int1 = fd;
…		…
865		1593
866	REQ_SEND;	1594	REQ_SEND;
867	}	1595	}
868		1596
869	void	1597	void
870	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1598	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
871	ALIAS:	1599	ALIAS:
872	aio_stat = EIO_STAT	1600	aio_stat = EIO_STAT
873	aio_lstat = EIO_LSTAT	1601	aio_lstat = EIO_LSTAT
		1602	aio_statvfs = EIO_STATVFS
874	PPCODE:	1603	PPCODE:
875	{	1604	{
876	dREQ;	1605	dREQ;
877		1606
878	req->sv1 = newSVsv (fh_or_path);	1607	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
879
880	if (SvPOK (req->sv1))
881	{
882	req->type = ix;
883	req->ptr1 = SvPVbyte_nolen (req->sv1);
884	}
885	else
886	{
887	req->type = EIO_FSTAT;
888	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
889	}
890		1608
891	REQ_SEND;	1609	REQ_SEND;
892	}	1610	}
893		1611
		1612	UV
		1613	major (UV dev)
		1614	ALIAS:
		1615	minor = 1
		1616	CODE:
		1617	RETVAL = ix ? minor (dev) : major (dev);
		1618	OUTPUT:
		1619	RETVAL
		1620
		1621	UV
		1622	makedev (UV maj, UV min)
		1623	CODE:
		1624	RETVAL = makedev (maj, min);
		1625	OUTPUT:
		1626	RETVAL
		1627
894	void	1628	void
895	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1629	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
896	PPCODE:	1630	PPCODE:
897	{	1631	{
898	dREQ;	1632	dREQ;
899		1633
900	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1634	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
901	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1635	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
902	req->sv1 = newSVsv (fh_or_path);	1636	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
903
904	if (SvPOK (req->sv1))
905	{
906	req->type = EIO_UTIME;
907	req->ptr1 = SvPVbyte_nolen (req->sv1);
908	}
909	else
910	{
911	req->type = EIO_FUTIME;
912	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
913	}
914		1637
915	REQ_SEND;	1638	REQ_SEND;
916	}	1639	}
917		1640
918	void	1641	void
919	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1642	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
920	PPCODE:	1643	PPCODE:
921	{	1644	{
922	dREQ;	1645	dREQ;
923		1646
924	req->sv1 = newSVsv (fh_or_path);
925	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1647	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
926		1648	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
927	if (SvPOK (req->sv1))
928	{
929	req->type = EIO_TRUNCATE;
930	req->ptr1 = SvPVbyte_nolen (req->sv1);
931	}
932	else
933	{
934	req->type = EIO_FTRUNCATE;
935	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
936	}
937		1649
938	REQ_SEND;	1650	REQ_SEND;
939	}	1651	}
940		1652
941	void	1653	void
942	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1654	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
943	ALIAS:
944	aio_chmod = EIO_CHMOD
945	aio_mkdir = EIO_MKDIR
946	PPCODE:	1655	PPCODE:
947	{	1656	{
948	dREQ;	1657	dREQ;
949		1658
950	req->int2 = mode;	1659	req->int2 = mode;
951	req->sv1 = newSVsv (fh_or_path);	1660	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
952
953	if (SvPOK (req->sv1))
954	{
955	req->type = ix;
956	req->ptr1 = SvPVbyte_nolen (req->sv1);
957	}
958	else
959	{
960	req->type = EIO_FCHMOD;
961	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
962	}
963		1661
964	REQ_SEND;	1662	REQ_SEND;
965	}	1663	}
966		1664
967	void	1665	void
968	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1666	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
969	PPCODE:	1667	PPCODE:
970	{	1668	{
971	dREQ;	1669	dREQ;
972		1670
973	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1671	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
974	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1672	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
975	req->sv1 = newSVsv (fh_or_path);	1673	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
976
977	if (SvPOK (req->sv1))
978	{
979	req->type = EIO_CHOWN;
980	req->ptr1 = SvPVbyte_nolen (req->sv1);
981	}
982	else
983	{
984	req->type = EIO_FCHOWN;
985	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
986	}
987		1674
988	REQ_SEND;	1675	REQ_SEND;
989	}	1676	}
990		1677
991	void	1678	void
992	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1679	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
993	PPCODE:	1680	PPCODE:
994	{	1681	{
995	dREQ;	1682	dREQ;
996		1683
997	req->type = EIO_READDIR;	1684	req->type = EIO_READDIR;
998	req->sv1 = newSVsv (pathname);
999	req->ptr1 = SvPVbyte_nolen (req->sv1);
1000	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1685	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1001		1686
1002	if (flags & EIO_READDIR_DENTS)	1687	if (flags & EIO_READDIR_DENTS)
1003	req->int1 |= EIO_READDIR_CUSTOM2;	1688	req->int1 |= EIO_READDIR_CUSTOM2;
1004		1689
		1690	req_set_path1 (req, pathname);
		1691
1005	REQ_SEND;	1692	REQ_SEND;
1006	}	1693	}
1007		1694
1008	void	1695	void
		1696	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1697	PPCODE:
		1698	{
		1699	dREQ;
		1700
		1701	req->type = EIO_MKDIR;
		1702	req->int2 = mode;
		1703	req_set_path1 (req, pathname);
		1704
		1705	REQ_SEND;
		1706	}
		1707
		1708	void
1009	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1709	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1010	ALIAS:	1710	ALIAS:
1011	aio_unlink = EIO_UNLINK	1711	aio_unlink = EIO_UNLINK
1012	aio_rmdir = EIO_RMDIR	1712	aio_rmdir = EIO_RMDIR
1013	aio_readdir = EIO_READDIR	1713	aio_readdir = EIO_READDIR
1014	PPCODE:	1714	PPCODE:
1015	{	1715	{
1016	dREQ;	1716	dREQ;
1017		1717
1018	req->type = ix;	1718	req->type = ix;
1019	req->sv1 = newSVsv (pathname);	1719	req_set_path1 (req, pathname);
1020	req->ptr1 = SvPVbyte_nolen (req->sv1);
1021		1720
1022	REQ_SEND;	1721	REQ_SEND;
1023	}	1722	}
1024		1723
1025	void	1724	void
1026	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1725	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1027	ALIAS:	1726	ALIAS:
1028	aio_link = EIO_LINK	1727	aio_link = EIO_LINK
1029	aio_symlink = EIO_SYMLINK	1728	aio_symlink = EIO_SYMLINK
1030	aio_rename = EIO_RENAME	1729	aio_rename = EIO_RENAME
1031	PPCODE:	1730	PPCODE:
1032	{	1731	{
		1732	eio_wd wd2 = 0;
1033	dREQ;	1733	dREQ;
1034		1734
1035	req->type = ix;	1735	req->type = ix;
1036	req->sv1 = newSVsv (oldpath);	1736	req_set_path1 (req, oldpath);
1037	req->ptr1 = SvPVbyte_nolen (req->sv1);	1737	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1038	req->sv2 = newSVsv (newpath);	1738	req->int3 = (long)wd2;
1039	req->ptr2 = SvPVbyte_nolen (req->sv2);
1040		1739
1041	REQ_SEND;	1740	REQ_SEND;
1042	}	1741	}
1043		1742
1044	void	1743	void
		1744	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1745	PPCODE:
		1746	{
		1747	eio_wd wd2 = 0;
		1748	dREQ;
		1749
		1750	req->type = EIO_RENAME;
		1751	req_set_path1 (req, oldpath);
		1752	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1753	req->int2 = flags;
		1754	req->int3 = (long)wd2;
		1755
		1756	REQ_SEND;
		1757	}
		1758
		1759	void
1045	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1760	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1046	PPCODE:	1761	PPCODE:
1047	{	1762	{
1048	dREQ;	1763	dREQ;
1049		1764
1050	req->type = EIO_MKNOD;	1765	req->type = EIO_MKNOD;
1051	req->sv1 = newSVsv (pathname);
1052	req->ptr1 = SvPVbyte_nolen (req->sv1);
1053	req->int2 = (mode_t)mode;	1766	req->int2 = (mode_t)mode;
1054	req->offs = dev;	1767	req->offs = dev;
		1768	req_set_path1 (req, pathname);
1055		1769
1056	REQ_SEND;	1770	REQ_SEND;
1057	}	1771	}
1058		1772
1059	void	1773	void
		1774	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
		1775	ALIAS:
		1776	aio_mtouch = EIO_MTOUCH
		1777	aio_msync = EIO_MSYNC
		1778	PPCODE:
		1779	{
		1780	STRLEN svlen;
		1781	char *svptr = SvPVbyte (data, svlen);
		1782	UV len = SvUV (length);
		1783
		1784	if (flags < 0)
		1785	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
		1786
		1787	if (offset < 0)
		1788	offset += svlen;
		1789
		1790	if (offset < 0 || offset > svlen)
		1791	croak ("offset outside of scalar");
		1792
		1793	if (!SvOK (length) || len + offset > svlen)
		1794	len = svlen - offset;
		1795
		1796	{
		1797	dREQ;
		1798
		1799	req->type = ix;
		1800	req->sv2 = SvREFCNT_inc (data);
		1801	req->ptr2 = (char *)svptr + offset;
		1802	req->size = len;
		1803	req->int1 = flags;
		1804
		1805	REQ_SEND;
		1806	}
		1807	}
		1808
		1809	void
		1810	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1811	PPCODE:
		1812	{
		1813	STRLEN svlen;
		1814	char *svptr = SvPVbyte (data, svlen);
		1815	UV len = SvUV (length);
		1816
		1817	if (offset < 0)
		1818	offset += svlen;
		1819
		1820	if (offset < 0 || offset > svlen)
		1821	croak ("offset outside of scalar");
		1822
		1823	if (!SvOK (length) || len + offset > svlen)
		1824	len = svlen - offset;
		1825
		1826	{
		1827	dREQ;
		1828
		1829	req->type = EIO_MLOCK;
		1830	req->sv2 = SvREFCNT_inc (data);
		1831	req->ptr2 = (char *)svptr + offset;
		1832	req->size = len;
		1833
		1834	REQ_SEND;
		1835	}
		1836	}
		1837
		1838	void
		1839	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1840	PPCODE:
		1841	{
		1842	dREQ;
		1843
		1844	req->type = EIO_MLOCKALL;
		1845	req->int1 = flags;
		1846
		1847	REQ_SEND;
		1848	}
		1849
		1850	void
		1851	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1852	PPCODE:
		1853	{
		1854	int fd = s_fileno_croak (fh, 0);
		1855	dREQ;
		1856
		1857	req->type = EIO_CUSTOM;
		1858	req->sv1 = newSVsv (fh);
		1859	req->int1 = fd;
		1860
		1861	req->feed = fiemap;
		1862	#if HAVE_FIEMAP
		1863	/* keep our fingers crossed that the next two types are 64 bit */
		1864	req->offs = start;
		1865	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1866	req->int2 = flags;
		1867	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1868	#endif
		1869
		1870	REQ_SEND;
		1871	}
		1872
		1873	void
		1874	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1875	PPCODE:
		1876	{
		1877	char *svptr = 0;
		1878
		1879	sv_clear_foreign (data);
		1880
		1881	if (length) /* known length, directly read into scalar */
		1882	{
		1883	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1884	svptr = sv_grow (data, length + 1);
		1885	else if (SvCUR (data) < length)
		1886	croak ("length outside of scalar, and cannot grow");
		1887	else
		1888	svptr = SvPVbyte_nolen (data);
		1889	}
		1890
		1891	{
		1892	dREQ;
		1893
		1894	req->type = EIO_SLURP;
		1895	req_set_path1 (req, pathname);
		1896	req->offs = offset;
		1897	req->size = length;
		1898	req->sv2 = SvREFCNT_inc (data);
		1899	req->ptr2 = svptr;
		1900
		1901	if (!SvREADONLY (data))
		1902	{
		1903	SvREADONLY_on (data);
		1904	req->flags |= FLAG_SV2_RO_OFF;
		1905	}
		1906
		1907	REQ_SEND;
		1908	}
		1909	}
		1910
		1911	void
1060	aio_busy (double delay, SV *callback=&PL_sv_undef)	1912	aio_busy (double delay, SV *callback = &PL_sv_undef)
1061	PPCODE:	1913	PPCODE:
1062	{	1914	{
1063	dREQ;	1915	dREQ;
1064		1916
1065	req->type = EIO_BUSY;	1917	req->type = EIO_BUSY;
…		…
1067		1919
1068	REQ_SEND;	1920	REQ_SEND;
1069	}	1921	}
1070		1922
1071	void	1923	void
1072	aio_group (SV *callback=&PL_sv_undef)	1924	aio_group (SV *callback = &PL_sv_undef)
1073	PROTOTYPE: ;$
1074	PPCODE:	1925	PPCODE:
1075	{	1926	{
1076	dREQ;	1927	dREQ;
1077		1928
1078	req->type = EIO_GROUP;	1929	req->type = EIO_GROUP;
1079		1930
		1931	PUTBACK;
1080	req_submit (req);	1932	req_submit (req);
		1933	SPAGAIN;
		1934
1081	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1935	XPUSHs (req_sv (req, aio_grp_stash));
1082	}	1936	}
1083		1937
1084	void	1938	void
1085	aio_nop (SV *callback=&PL_sv_undef)	1939	aio_nop (SV *callback = &PL_sv_undef)
1086	ALIAS:	1940	ALIAS:
1087	aio_nop = EIO_NOP	1941	aio_nop = EIO_NOP
1088	aio_sync = EIO_SYNC	1942	aio_sync = EIO_SYNC
1089	PPCODE:	1943	PPCODE:
1090	{	1944	{
…		…
1094		1948
1095	REQ_SEND;	1949	REQ_SEND;
1096	}	1950	}
1097		1951
1098	int	1952	int
1099	aioreq_pri (int pri = 0)	1953	aioreq_pri (int pri = NO_INIT)
1100	PROTOTYPE: ;$
1101	CODE:	1954	CODE:
1102	RETVAL = next_pri;	1955	RETVAL = next_pri;
1103	if (items > 0)	1956	if (items > 0)
1104	{	1957	{
1105	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1958	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1117	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1970	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1118	next_pri = nice;	1971	next_pri = nice;
1119		1972
1120	void	1973	void
1121	flush ()	1974	flush ()
1122	PROTOTYPE:
1123	CODE:	1975	CODE:
1124	while (eio_nreqs ())	1976	while (eio_nreqs ())
1125	{	1977	{
1126	poll_wait ();	1978	poll_wait ();
1127	poll_cb ();	1979	poll_cb ();
1128	}	1980	}
1129		1981
1130	int	1982	int
1131	poll()	1983	poll ()
1132	PROTOTYPE:
1133	CODE:	1984	CODE:
1134	poll_wait ();	1985	poll_wait ();
1135	RETVAL = poll_cb ();	1986	RETVAL = poll_cb ();
1136	OUTPUT:	1987	OUTPUT:
1137	RETVAL	1988	RETVAL
1138		1989
1139	int	1990	int
1140	poll_fileno()	1991	poll_fileno ()
1141	PROTOTYPE:
1142	CODE:	1992	CODE:
1143	RETVAL = respipe [0];	1993	RETVAL = s_epipe_fd (&respipe);
1144	OUTPUT:	1994	OUTPUT:
1145	RETVAL	1995	RETVAL
1146		1996
1147	int	1997	int
1148	poll_cb(...)	1998	poll_cb (...)
1149	PROTOTYPE:	1999	PROTOTYPE:
1150	CODE:	2000	CODE:
1151	RETVAL = poll_cb ();	2001	RETVAL = poll_cb ();
1152	OUTPUT:	2002	OUTPUT:
1153	RETVAL	2003	RETVAL
1154		2004
1155	void	2005	void
1156	poll_wait()	2006	poll_wait ()
1157	PROTOTYPE:
1158	CODE:	2007	CODE:
1159	poll_wait ();	2008	poll_wait ();
1160		2009
1161	int	2010	int
1162	nreqs()	2011	nreqs ()
1163	PROTOTYPE:
1164	CODE:	2012	CODE:
1165	RETVAL = eio_nreqs ();	2013	RETVAL = eio_nreqs ();
1166	OUTPUT:	2014	OUTPUT:
1167	RETVAL	2015	RETVAL
1168		2016
1169	int	2017	int
1170	nready()	2018	nready ()
1171	PROTOTYPE:
1172	CODE:	2019	CODE:
1173	RETVAL = eio_nready ();	2020	RETVAL = eio_nready ();
1174	OUTPUT:	2021	OUTPUT:
1175	RETVAL	2022	RETVAL
1176		2023
1177	int	2024	int
1178	npending()	2025	npending ()
1179	PROTOTYPE:
1180	CODE:	2026	CODE:
1181	RETVAL = eio_npending ();	2027	RETVAL = eio_npending ();
1182	OUTPUT:	2028	OUTPUT:
1183	RETVAL	2029	RETVAL
1184		2030
1185	int	2031	int
1186	nthreads()	2032	nthreads ()
1187	PROTOTYPE:
1188	CODE:	2033	CODE:
1189	RETVAL = eio_nthreads ();	2034	RETVAL = eio_nthreads ();
1190	OUTPUT:	2035	OUTPUT:
1191	RETVAL	2036	RETVAL
1192		2037
1193	int	2038	int
1194	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	2039	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1195	PROTOTYPE: $$$$
1196	CODE:	2040	CODE:
1197	{
1198	#if _XOPEN_SOURCE >= 600
1199	RETVAL = posix_fadvise (fh, offset, length, advice);	2041	RETVAL = posix_fadvise (fh, offset, length, advice);
1200	#else
1201	RETVAL = errno = ENOSYS;
1202	#endif
1203	}
1204	OUTPUT:	2042	OUTPUT:
1205	RETVAL	2043	RETVAL
1206		2044
1207	ssize_t	2045	IV
1208	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	2046	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1209	PROTOTYPE: $$$$
1210	CODE:	2047	CODE:
1211	eio_sendfile_sync (ofh, ifh, offset, count);	2048	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		2049	OUTPUT:
		2050	RETVAL
		2051
		2052	void
		2053	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		2054	PPCODE:
		2055	sv_clear_foreign (scalar);
		2056	{
		2057	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		2058	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		2059	if (addr == (void *)-1)
		2060	XSRETURN_NO;
		2061
		2062	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
		2063
		2064	if (!(prot & PROT_WRITE))
		2065	SvREADONLY_on (scalar);
		2066
		2067	XSRETURN_YES;
		2068	}
		2069
		2070	void
		2071	munmap (SV *scalar)
		2072	CODE:
		2073	sv_clear_foreign (scalar);
		2074
		2075	SV *
		2076	mremap (SV *scalar, STRLEN new_length, int flags = 0, IV new_address = 0)
		2077	CODE:
		2078	{
		2079	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2080	void *new;
		2081
		2082	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2083	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2084
		2085	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2086
		2087	RETVAL = &PL_sv_no;
		2088
		2089	if (new != (void *)-1)
		2090	{
		2091	RETVAL = new == (void *)mg->mg_ptr
		2092	? newSVpvn ("0 but true", 10)
		2093	: &PL_sv_yes;
		2094
		2095	mg->mg_ptr = (char *)new;
		2096	mg->mg_obj = (SV *)new_length;
		2097
		2098	SvPVX (scalar) = mg->mg_ptr;
		2099	SvCUR_set (scalar, new_length);
		2100	}
		2101	}
		2102	OUTPUT:
		2103	RETVAL
		2104
		2105	int
		2106	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		2107	ALIAS:
		2108	mprotect = 1
		2109	CODE:
		2110	{
		2111	STRLEN svlen;
		2112	void *addr = SvPVbyte (scalar, svlen);
		2113	STRLEN len = SvUV (length);
		2114
		2115	if (offset < 0)
		2116	offset += svlen;
		2117
		2118	if (offset < 0 || offset > svlen)
		2119	croak ("offset outside of scalar");
		2120
		2121	if (!SvOK (length) || len + offset > svlen)
		2122	len = svlen - offset;
		2123
		2124	addr = (void *)(((intptr_t)addr) + offset);
		2125	eio_page_align (&addr, &len);
		2126
		2127	switch (ix)
		2128	{
		2129	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		2130	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		2131	}
		2132	}
		2133	OUTPUT:
		2134	RETVAL
		2135
		2136	int
		2137	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		2138	CODE:
		2139	{
		2140	STRLEN svlen;
		2141	void *addr = SvPVbyte (scalar, svlen);
		2142	size_t len = SvUV (length);
		2143
		2144	if (offset < 0)
		2145	offset += svlen;
		2146
		2147	if (offset < 0 || offset > svlen)
		2148	croak ("offset outside of scalar");
		2149
		2150	if (!SvOK (length) || len + offset > svlen)
		2151	len = svlen - offset;
		2152
		2153	addr = (void *)(((intptr_t)addr) + offset);
		2154	eio_page_align (&addr, &len);
		2155	#if _POSIX_MEMLOCK_RANGE
		2156	RETVAL = munlock (addr, len);
		2157	#else
		2158	RETVAL = EIO_ENOSYS ();
		2159	#endif
		2160	}
		2161	OUTPUT:
		2162	RETVAL
		2163
		2164	int
		2165	munlockall ()
		2166	CODE:
		2167	#if _POSIX_MEMLOCK
		2168	munlockall ();
		2169	#else
		2170	RETVAL = EIO_ENOSYS ();
		2171	#endif
		2172	OUTPUT:
		2173	RETVAL
		2174
		2175	int
		2176	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2177	CODE:
		2178	{
		2179	#if HAVE_LINUX_SPLICE
		2180	loff_t off_in_, off_out_;
		2181	RETVAL = splice (
		2182	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2183	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2184	length, flags
		2185	);
		2186	#else
		2187	RETVAL = EIO_ENOSYS ();
		2188	#endif
		2189	}
		2190	OUTPUT:
		2191	RETVAL
		2192
		2193	int
		2194	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2195	CODE:
		2196	#if HAVE_LINUX_SPLICE
		2197	RETVAL = tee (rfh, wfh, length, flags);
		2198	#else
		2199	RETVAL = EIO_ENOSYS ();
		2200	#endif
		2201	OUTPUT:
		2202	RETVAL
		2203
		2204	int
		2205	pipesize (aio_rfd rfh, int new_size = -1)
		2206	PROTOTYPE: $;$
		2207	CODE:
		2208	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2209	if (new_size >= 0)
		2210	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2211	else
		2212	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2213	#else
		2214	errno = ENOSYS;
		2215	RETVAL = -1;
		2216	#endif
		2217	OUTPUT:
		2218	RETVAL
		2219
		2220	void
		2221	pipe2 (int flags = 0)
		2222	PROTOTYPE: ;$
		2223	PPCODE:
		2224	{
		2225	int fd[2];
		2226	int res;
		2227
		2228	if (flags)
		2229	#if HAVE_PIPE2
		2230	res = pipe2 (fd, flags);
		2231	#else
		2232	res = (errno = ENOSYS, -1);
		2233	#endif
		2234	else
		2235	res = pipe (fd);
		2236
		2237	if (!res)
		2238	{
		2239	EXTEND (SP, 2);
		2240	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2241	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2242	}
		2243	}
		2244
		2245	void
		2246	eventfd (unsigned int initval = 0, int flags = 0)
		2247	PPCODE:
		2248	{
		2249	int fd;
		2250	#if HAVE_EVENTFD
		2251	fd = eventfd (initval, flags);
		2252	#else
		2253	fd = (errno = ENOSYS, -1);
		2254	#endif
		2255
		2256	XPUSHs (newmortalFH (fd, O_RDWR));
		2257	}
		2258
		2259	void
		2260	timerfd_create (int clockid, int flags = 0)
		2261	PPCODE:
		2262	{
		2263	int fd;
		2264	#if HAVE_TIMERFD
		2265	fd = timerfd_create (clockid, flags);
		2266	#else
		2267	fd = (errno = ENOSYS, -1);
		2268	#endif
		2269
		2270	XPUSHs (newmortalFH (fd, O_RDWR));
		2271	}
		2272
		2273	void
		2274	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2275	PPCODE:
		2276	{
		2277	int fd = s_fileno_croak (fh, 0);
		2278	#if HAVE_TIMERFD
		2279	int res;
		2280	struct itimerspec its, ots;
		2281
		2282	ts_set (&its.it_interval, interval);
		2283	ts_set (&its.it_value , value);
		2284	res = timerfd_settime (fd, flags, &its, &ots);
		2285
		2286	if (!res)
		2287	{
		2288	EXTEND (SP, 2);
		2289	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2290	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2291	}
		2292	#else
		2293	errno = ENOSYS;
		2294	#endif
		2295	}
		2296
		2297	void
		2298	timerfd_gettime (SV *fh)
		2299	PPCODE:
		2300	{
		2301	int fd = s_fileno_croak (fh, 0);
		2302	#if HAVE_TIMERFD
		2303	int res;
		2304	struct itimerspec ots;
		2305	res = timerfd_gettime (fd, &ots);
		2306
		2307	if (!res)
		2308	{
		2309	EXTEND (SP, 2);
		2310	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2311	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2312	}
		2313	#else
		2314	errno = ENOSYS;
		2315	#endif
		2316	}
		2317
		2318	UV
		2319	get_fdlimit ()
		2320	CODE:
		2321	#if HAVE_RLIMITS
		2322	struct rlimit rl;
		2323	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2324	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2325	#endif
		2326	XSRETURN_UNDEF;
		2327	OUTPUT:
		2328	RETVAL
		2329
		2330	void
		2331	min_fdlimit (UV limit = 0x7fffffffU)
		2332	CODE:
		2333	{
		2334	#if HAVE_RLIMITS
		2335	struct rlimit rl;
		2336	rlim_t orig_rlim_max;
		2337	UV bit;
		2338
		2339	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2340	goto fail;
		2341
		2342	if (rl.rlim_cur == RLIM_INFINITY)
		2343	XSRETURN_YES;
		2344
		2345	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2346
		2347	if (rl.rlim_cur < limit)
		2348	{
		2349	rl.rlim_cur = limit;
		2350
		2351	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2352	rl.rlim_max = rl.rlim_cur;
		2353	}
		2354
		2355	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2356	XSRETURN_YES;
		2357
		2358	if (errno == EPERM)
		2359	{
		2360	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2361	/* our limit overflows a system-wide limit */
		2362	/* try an adaptive algorithm, but do not lower the hardlimit */
		2363	rl.rlim_max = 0;
		2364	for (bit = 0x40000000U; bit; bit >>= 1)
		2365	{
		2366	rl.rlim_max |= bit;
		2367	rl.rlim_cur = rl.rlim_max;
		2368
		2369	/* nevr decrease the hard limit */
		2370	if (rl.rlim_max < orig_rlim_max)
		2371	break;
		2372
		2373	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2374	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2375	}
		2376
		2377	/* now, raise the soft limit to the max permitted */
		2378	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2379	{
		2380	rl.rlim_cur = rl.rlim_max;
		2381	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2382	errno = EPERM;
		2383	}
		2384	}
		2385	#endif
		2386	fail:
		2387	XSRETURN_UNDEF;
		2388	}
1212		2389
1213	void _on_next_submit (SV *cb)	2390	void _on_next_submit (SV *cb)
1214	CODE:	2391	CODE:
1215	SvREFCNT_dec (on_next_submit);	2392	SvREFCNT_dec (on_next_submit);
1216	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2393	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1217		2394
1218	PROTOTYPES: DISABLE	2395	PROTOTYPES: DISABLE
1219		2396
		2397	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2398
		2399	BOOT:
		2400	{
		2401	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2402	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2403	}
		2404
		2405	void
		2406	DESTROY (SV *self)
		2407	CODE:
		2408	{
		2409	aio_wd wd = SvAIO_WD (self);
		2410	#if HAVE_AT
		2411	{
		2412	SV *callback = &PL_sv_undef;
		2413	dREQ; /* clobbers next_pri :/ */
		2414	next_pri = req->pri; /* restore next_pri */
		2415	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2416	req->type = EIO_WD_CLOSE;
		2417	req->wd = wd;
		2418	REQ_SEND;
		2419	}
		2420	#else
		2421	eio_wd_close_sync (wd);
		2422	#endif
		2423	}
		2424
1220	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2425	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1221		2426
1222	void	2427	void
1223	cancel (aio_req_ornot req)	2428	cancel (aio_req_ornot req)
1224	CODE:	2429	CODE:
1225	eio_cancel (req);	2430	eio_cancel (req);
1226		2431
1227	void	2432	void
1228	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2433	cb (aio_req_ornot req, SV *callback = NO_INIT)
1229	PPCODE:	2434	PPCODE:
1230	{	2435	{
1231	if (GIMME_V != G_VOID)	2436	if (GIMME_V != G_VOID)
1232	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2437	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1233		2438
…		…
1298	limit (aio_req grp, int limit)	2503	limit (aio_req grp, int limit)
1299	CODE:	2504	CODE:
1300	eio_grp_limit (grp, limit);	2505	eio_grp_limit (grp, limit);
1301		2506
1302	void	2507	void
1303	feed (aio_req grp, SV *callback=&PL_sv_undef)	2508	feed (aio_req grp, SV *callback = &PL_sv_undef)
1304	CODE:	2509	CODE:
1305	{	2510	{
1306	SvREFCNT_dec (grp->sv2);	2511	SvREFCNT_dec (grp->sv2);
1307	grp->sv2 = newSVsv (callback);	2512	grp->sv2 = newSVsv (callback);
1308	grp->feed = aio_grp_feed;	2513	grp->feed = aio_grp_feed;

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