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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.117 by root, Sat May 10 20:02:09 2008 UTC vs.
Revision 1.247 by root, Fri Jun 23 22:09:50 2017 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8
		9	#include "schmorp.h"
8		10
9	#include <stddef.h>	11	#include <stddef.h>
10	#include <stdlib.h>	12	#include <stdlib.h>
11	#include <errno.h>	13	#include <errno.h>
12	#include <sys/types.h>	14	#include <sys/types.h>
13	#include <sys/stat.h>	15	#include <sys/stat.h>
14	#include <limits.h>	16	#include <limits.h>
15	#include <fcntl.h>	17	#include <fcntl.h>
16	#include <sched.h>	18	#include <sched.h>
17		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
		24	/* the incompetent fool that created musl keeps __linux__, refuses
		25	* to implement any linux standard apis, and also has no way to test
		26	* for his broken iplementation. don't complain to me if this fails
		27	* for you.
		28	*/
		29	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		30	# include <linux/fs.h>
		31	# ifdef FS_IOC_FIEMAP
		32	# include <linux/types.h>
		33	# include <linux/fiemap.h>
		34	# define HAVE_FIEMAP 1
		35	# endif
		36	#endif
		37
		38	/* perl namespace pollution */
		39	#undef VERSION
		40
		41	/* perl stupidly overrides readdir and maybe others */
		42	/* with thread-unsafe versions, imagine that :( */
		43	#undef readdir
		44	#undef opendir
		45	#undef closedir
		46
18	#ifdef _WIN32	47	#ifdef _WIN32
19		48
20	# define EIO_STRUCT_DIRENT Direntry_t
21	# undef malloc
22	# undef free
23
24	// perl overrides all those nice win32 functions	49	// perl overrides all those nice libc functions
		50
		51	#undef malloc
		52	#undef free
25	# undef open	53	#undef open
26	# undef read	54	#undef read
27	# undef write	55	#undef write
28	# undef send	56	#undef send
29	# undef recv	57	#undef recv
30	# undef stat	58	#undef stat
		59	#undef lstat
31	# undef fstat	60	#undef fstat
32	# define lstat stat
33	# undef truncate	61	#undef truncate
34	# undef ftruncate	62	#undef ftruncate
35	# undef open	63	#undef open
		64	#undef link
36	# undef close	65	#undef close
37	# undef unlink	66	#undef unlink
		67	#undef mkdir
38	# undef rmdir	68	#undef rmdir
39	# undef rename	69	#undef rename
40	# undef lseek	70	#undef lseek
		71	#undef opendir
		72	#undef readdir
		73	#undef closedir
		74	#undef chmod
		75	#undef fchmod
		76	#undef dup
		77	#undef dup2
		78	#undef abort
		79	#undef pipe
41		80
42	# define chown(a,b,c) (errno = ENOSYS, -1)	81	#define EIO_STRUCT_STAT struct _stati64
43	# define fchown(a,b,c) (errno = ENOSYS, -1)	82	#define EIO_STRUCT_STATI64
44	# define fchmod(a,b) (errno = ENOSYS, -1)
45	# define symlink(a,b) (errno = ENOSYS, -1)
46	# define readlink(a,b,c) (errno = ENOSYS, -1)
47	# define mknod(a,b,c) (errno = ENOSYS, -1)
48	# define truncate(a,b) (errno = ENOSYS, -1)
49	# define ftruncate(fd,o) chsize ((fd), (o))
50	# define fsync(fd) _commit (fd)
51	# define opendir(fd) (errno = ENOSYS, 0)
52	# define readdir(fd) (errno = ENOSYS, -1)
53	# define closedir(fd) (errno = ENOSYS, -1)
54	# define mkdir(a,b) mkdir (a)
55		83
56	#else	84	#else
57		85
58	# include <sys/time.h>	86	#include <sys/time.h>
59	# include <sys/select.h>	87	#include <sys/select.h>
60	# include <unistd.h>	88	#include <unistd.h>
61	# include <utime.h>	89	#include <utime.h>
62	# include <signal.h>	90	#include <signal.h>
63	# define EIO_STRUCT_DIRENT struct dirent
64		91
65	#endif
66
67	#define EIO_STRUCT_STAT Stat_t	92	#define EIO_STRUCT_STAT Stat_t
68		93
69	/* use NV for 32 bit perls as it allows larger offsets */	94	#endif
70	#if IVSIZE >= 8	95
71	# define SvVAL64 SvIV	96	/*****************************************************************************/
		97
		98	#if __GNUC__ >= 3
		99	# define expect(expr,value) __builtin_expect ((expr),(value))
72	#else	100	#else
73	# define SvVAL64 SvNV	101	# define expect(expr,value) (expr)
74	#endif	102	#endif
75		103
76	static HV *stash;	104	#define expect_false(expr) expect ((expr) != 0, 0)
		105	#define expect_true(expr) expect ((expr) != 0, 1)
		106
		107	/*****************************************************************************/
		108
77	typedef SV SV8; /* byte-sv, used for argument-checking */	109	typedef SV SV8; /* byte-sv, used for argument-checking */
		110	typedef int aio_rfd; /* read file desriptor */
		111	typedef int aio_wfd; /* write file descriptor */
78		112
79	#define AIO_REQ_KLASS "IO::AIO::REQ"	113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
80	#define AIO_GRP_KLASS "IO::AIO::GRP"
81		114
82	#define EIO_COMMON \	115	#define EIO_REQ_MEMBERS \
83	SV *callback; \	116	SV *callback; \
84	SV *sv1, *sv2; \	117	SV *sv1, *sv2; \
		118	SV *sv3, *sv4; \
85	STRLEN stroffset; \	119	STRLEN stroffset; \
86	SV *self	120	SV *self;
87		121
		122	#define EIO_NO_WRAPPERS 1
		123
		124	#include "libeio/config.h"
88	#include "libeio/eio.h"	125	#include "libeio/eio.h"
89		126
90	static int req_invoke (eio_req *req);	127	static int req_invoke (eio_req *req);
91	#define EIO_FINISH(req) req_invoke (req)	128	#define EIO_FINISH(req) req_invoke (req)
92	static void aio_grp_feed (eio_req *grp);
93	#define EIO_FEED(req) aio_grp_feed (req)
94	static void req_destroy (eio_req *grp);	129	static void req_destroy (eio_req *grp);
95	#define EIO_DESTROY(req) req_destroy (req)	130	#define EIO_DESTROY(req) req_destroy (req)
		131
		132	#include "libeio/eio.c"
		133
		134	#if !HAVE_POSIX_FADVISE
		135	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		136	#endif
		137
		138	#if !HAVE_POSIX_MADVISE
		139	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		140	#endif
		141
		142	#ifndef MAP_ANONYMOUS
		143	# ifdef MAP_ANON
		144	# define MAP_ANONYMOUS MAP_ANON
		145	# else
		146	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		147	# endif
		148	#endif
		149
		150	/* defines all sorts of constants to 0 unless they are already defined */
		151	/* also provides const_iv_ and const_niv_ macros for them */
		152	#include "def0.h"
		153
		154	#ifndef makedev
		155	# define makedev(maj,min) (((maj) << 8) | (min))
		156	#endif
		157	#ifndef major
		158	# define major(dev) ((dev) >> 8)
		159	#endif
		160	#ifndef minor
		161	# define minor(dev) ((dev) & 0xff)
		162	#endif
		163
		164	#if PAGESIZE <= 0
		165	# define PAGESIZE sysconf (_SC_PAGESIZE)
		166	#endif
		167
		168	/*****************************************************************************/
		169
		170	static void
		171	fiemap (eio_req *req)
		172	{
		173	req->result = -1;
		174
		175	#if HAVE_FIEMAP
		176	/* assume some c99 */
		177	struct fiemap *fiemap = 0;
		178	size_t end_offset;
		179	int count = req->int3;
		180
		181	req->flags |= EIO_FLAG_PTR1_FREE;
		182
		183	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		184	/* increase in 3.5kb steps */
		185	if (count < 0)
		186	count = 8;
		187
		188	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		189	errno = ENOMEM;
		190	if (!fiemap)
		191	return;
		192
		193	req->ptr1 = fiemap;
		194
		195	fiemap->fm_start = req->offs;
		196	fiemap->fm_length = req->size;
		197	fiemap->fm_flags = req->int2;
		198	fiemap->fm_extent_count = count;
		199
		200	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		201	return;
		202
		203	if (req->int3 >= 0 /* not autosizing */
		204	|| !fiemap->fm_mapped_extents /* no more extents */
		205	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		206	goto done;
		207
		208	/* else we have to loop -
		209	* it would be tempting (actually I tried that first) to just query the
		210	* number of extents needed, but linux often feels like not returning all
		211	* extents, without telling us it left any out. this complicates
		212	* this quite a bit.
		213	*/
		214
		215	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		216
		217	for (;;)
		218	{
		219	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		220	char scratch[3072];
		221	struct fiemap *incmap = (struct fiemap *)scratch;
		222
		223	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		224	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		225	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		226	incmap->fm_flags = fiemap->fm_flags;
		227	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		228
		229	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		230	return;
		231
		232	if (!incmap->fm_mapped_extents)
		233	goto done;
		234
		235	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		236	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		237	errno = ENOMEM;
		238	if (!fiemap)
		239	return;
		240
		241	req->ptr1 = fiemap;
		242
		243	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		244	{
		245	struct fiemap_extent *e = incmap->fm_extents + count;
		246
		247	if (e->fe_logical + e->fe_length >= end_offset)
		248	goto done;
		249
		250	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		251
		252	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		253	goto done;
		254
		255	}
		256	}
		257
		258	done:
		259	req->result = 0;
		260
		261	#else
		262	errno = ENOSYS;
		263	#endif
		264	}
		265
		266	/*****************************************************************************/
96		267
97	enum {	268	enum {
98	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	269	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
99	};	270	};
100		271
101	#include "libeio/eio.c"
102
103	typedef eio_req *aio_req;	272	typedef eio_req *aio_req;
104	typedef eio_req *aio_req_ornot;	273	typedef eio_req *aio_req_ornot;
		274	typedef eio_wd aio_wd;
105		275
106	static SV *on_next_submit;	276	static SV *on_next_submit;
107	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	277	static int next_pri = EIO_PRI_DEFAULT;
108	static int max_outstanding;	278	static int max_outstanding;
109		279
110	static int respipe_osf [2], respipe [2] = { -1, -1 };	280	static s_epipe respipe;
111		281
112	static void req_destroy (aio_req req);	282	static void req_destroy (aio_req req);
113	static void req_cancel (aio_req req);	283	static void req_cancel (aio_req req);
114		284
115	static void want_poll (void)	285	static void
		286	want_poll (void)
116	{	287	{
117	/* write a dummy byte to the pipe so fh becomes ready */	288	/* write a dummy byte to the pipe so fh becomes ready */
118	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	289	s_epipe_signal (&respipe);
119	}	290	}
120		291
121	static void done_poll (void)	292	static void
		293	done_poll (void)
122	{	294	{
123	/* read any signals sent by the worker threads */	295	/* read any signals sent by the worker threads */
124	char buf [4];	296	s_epipe_drain (&respipe);
125	while (respipe_read (respipe [0], buf, 4) == 4)
126	;
127	}	297	}
128		298
129	/* must be called at most once */	299	/* must be called at most once */
130	static SV *req_sv (aio_req req, const char *klass)	300	static SV *
		301	req_sv (aio_req req, HV *stash)
131	{	302	{
132	if (!req->self)	303	if (!req->self)
133	{	304	{
134	req->self = (SV *)newHV ();	305	req->self = (SV *)newHV ();
135	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	306	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
136	}	307	}
137		308
138	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	309	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
139	}	310	}
140		311
141	static aio_req SvAIO_REQ (SV *sv)	312	static SV *
		313	newSVaio_wd (aio_wd wd)
		314	{
		315	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		316	}
		317
		318	static aio_req
		319	SvAIO_REQ (SV *sv)
142	{	320	{
143	MAGIC *mg;	321	MAGIC *mg;
144		322
145	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	323	if (!SvROK (sv)
		324	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		325	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		326	&& SvSTASH (SvRV (sv)) != aio_req_stash
		327	&& !sv_derived_from (sv, "IO::AIO::REQ")))
146	croak ("object of class " AIO_REQ_KLASS " expected");	328	croak ("object of class IO::AIO::REQ expected");
147		329
148	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	330	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
149		331
150	return mg ? (aio_req)mg->mg_ptr : 0;	332	return mg ? (aio_req)mg->mg_ptr : 0;
151	}	333	}
152		334
		335	static aio_wd
		336	SvAIO_WD (SV *sv)
		337	{
		338	if (!SvROK (sv)
		339	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		340	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		341	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		342
		343	return (aio_wd)(long)SvIVX (SvRV (sv));
		344	}
		345
		346	static SV *
		347	newmortalFH (int fd, int flags)
		348	{
		349	if (fd < 0)
		350	return &PL_sv_undef;
		351
		352	GV *gv = (GV *)sv_newmortal ();
		353	char sym[64];
		354	int symlen;
		355
		356	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		357	gv_init (gv, aio_stash, sym, symlen, 0);
		358
		359	symlen = snprintf (
		360	sym,
		361	sizeof (sym),
		362	"%s&=%d",
		363	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		364	fd
		365	);
		366
		367	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		368	? (SV *)gv : &PL_sv_undef;
		369	}
		370
		371	static void
153	static void aio_grp_feed (aio_req grp)	372	aio_grp_feed (aio_req grp)
154	{	373	{
155	if (grp->sv2 && SvOK (grp->sv2))	374	if (grp->sv2 && SvOK (grp->sv2))
156	{	375	{
157	dSP;	376	dSP;
158		377
159	ENTER;	378	ENTER;
160	SAVETMPS;	379	SAVETMPS;
161	PUSHMARK (SP);	380	PUSHMARK (SP);
162	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	381	XPUSHs (req_sv (grp, aio_grp_stash));
163	PUTBACK;	382	PUTBACK;
164	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	383	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
165	SPAGAIN;	384	SPAGAIN;
166	FREETMPS;	385	FREETMPS;
167	LEAVE;	386	LEAVE;
168	}	387	}
169	}	388	}
170		389
		390	static void
171	static void req_submit (eio_req *req)	391	req_submit (eio_req *req)
172	{	392	{
173	eio_submit (req);	393	eio_submit (req);
174		394
175	if (on_next_submit)	395	if (expect_false (on_next_submit))
176	{	396	{
177	dSP;	397	dSP;
178	SV *cb = sv_2mortal (on_next_submit);	398	SV *cb = sv_2mortal (on_next_submit);
179		399
180	on_next_submit = 0;	400	on_next_submit = 0;
…		…
183	PUTBACK;	403	PUTBACK;
184	call_sv (cb, G_DISCARD | G_EVAL);	404	call_sv (cb, G_DISCARD | G_EVAL);
185	}	405	}
186	}	406	}
187		407
		408	static int
188	static int req_invoke (eio_req *req)	409	req_invoke (eio_req *req)
189	{	410	{
190	dSP;
191
192	if (req->flags & FLAG_SV2_RO_OFF)	411	if (req->flags & FLAG_SV2_RO_OFF)
193	SvREADONLY_off (req->sv2);	412	SvREADONLY_off (req->sv2);
194		413
195	if (!EIO_CANCELLED (req) && SvOK (req->callback))	414	if (!EIO_CANCELLED (req) && req->callback)
196	{	415	{
		416	dSP;
		417	static SV *sv_result_cache; /* caches the result integer SV */
		418	SV *sv_result;
		419
197	ENTER;	420	ENTER;
198	SAVETMPS;	421	SAVETMPS;
199	PUSHMARK (SP);	422	PUSHMARK (SP);
200	EXTEND (SP, 1);	423	EXTEND (SP, 1);
201		424
		425	/* do not recreate the result IV from scratch each time */
		426	if (expect_true (sv_result_cache))
		427	{
		428	sv_result = sv_result_cache; sv_result_cache = 0;
		429	SvIV_set (sv_result, req->result);
		430	SvIOK_only (sv_result);
		431	}
		432	else
		433	{
		434	sv_result = newSViv (req->result);
		435	SvREADONLY_on (sv_result);
		436	}
		437
202	switch (req->type)	438	switch (req->type)
203	{	439	{
		440	case EIO_WD_OPEN:
		441	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		442	break;
		443
204	case EIO_READDIR:	444	case EIO_READDIR:
205	{	445	{
206	SV *rv = &PL_sv_undef;	446	SV *rv = &PL_sv_undef;
207		447
208	if (req->result >= 0)	448	if (req->result >= 0)
209	{	449	{
210	int i;	450	int i;
211	char *buf = req->ptr2;	451	char *names = (char *)req->ptr2;
		452	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
212	AV *av = newAV ();	453	AV *av = newAV ();
213		454
214	av_extend (av, req->result - 1);	455	av_extend (av, req->result - 1);
215		456
216	for (i = 0; i < req->result; ++i)	457	for (i = 0; i < req->result; ++i)
217	{	458	{
218	SV *sv = newSVpv (buf, 0);	459	if (req->int1 & EIO_READDIR_DENTS)
		460	{
		461	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
219		462
		463	if (req->int1 & EIO_READDIR_CUSTOM2)
		464	{
		465	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		466	AV *avent = newAV ();
		467
		468	av_extend (avent, 2);
		469
		470	if (!sv_type [ent->type])
		471	{
		472	sv_type [ent->type] = newSViv (ent->type);
		473	SvREADONLY_on (sv_type [ent->type]);
		474	}
		475
		476	av_store (avent, 0, namesv);
		477	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		478	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		479
		480	av_store (av, i, newRV_noinc ((SV *)avent));
		481	}
		482	else
220	av_store (av, i, sv);	483	av_store (av, i, namesv);
		484
		485	++ent;
		486	}
		487	else
		488	{
		489	SV *name = newSVpv (names, 0);
		490	av_store (av, i, name);
221	buf += SvCUR (sv) + 1;	491	names += SvCUR (name) + 1;
		492	}
222	}	493	}
223		494
224	rv = sv_2mortal (newRV_noinc ((SV *)av));	495	rv = sv_2mortal (newRV_noinc ((SV *)av));
225	}	496	}
226		497
227	PUSHs (rv);	498	PUSHs (rv);
		499
		500	if (req->int1 & EIO_READDIR_CUSTOM1)
		501	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
228	}	502	}
229	break;	503	break;
230		504
231	case EIO_OPEN:	505	case EIO_OPEN:
		506	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
		507	break;
		508
		509	case EIO_STATVFS:
		510	case EIO_FSTATVFS:
232	{	511	{
233	/* convert fd to fh */
234	SV *fh = &PL_sv_undef;	512	SV *rv = &PL_sv_undef;
235		513
		514	#ifndef _WIN32
236	if (req->result >= 0)	515	if (req->result >= 0)
237	{	516	{
		517	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
238	GV *gv = (GV *)sv_newmortal ();	518	HV *hv = newHV ();
239	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	519	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
240	char sym [64];	520	* chooses to make it a struct.
241	int symlen;
242		521	*/
243	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	522	unsigned long fsid = 0;
244	gv_init (gv, stash, sym, symlen, 0);	523	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
245		524
246	symlen = snprintf (	525	rv = sv_2mortal (newRV_noinc ((SV *)hv));
247	sym,
248	sizeof (sym),
249	"%s&=%d",
250	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
251	req->result
252	);
253		526
254	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	527	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
255	fh = (SV *)gv;	528	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		529	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		530	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		531	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		532	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		533	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		534	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		535	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		536	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		537	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
256	}	538	}
		539	#endif
257		540
258	PUSHs (fh);	541	PUSHs (rv);
259	}	542	}
		543
260	break;	544	break;
261		545
262	case EIO_GROUP:	546	case EIO_GROUP:
263	req->int1 = 2; /* mark group as finished */	547	req->int1 = 2; /* mark group as finished */
264		548
…		…
276	case EIO_NOP:	560	case EIO_NOP:
277	case EIO_BUSY:	561	case EIO_BUSY:
278	break;	562	break;
279		563
280	case EIO_READLINK:	564	case EIO_READLINK:
		565	case EIO_REALPATH:
281	if (req->result > 0)	566	if (req->result > 0)
282	{	567	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
283	SvCUR_set (req->sv2, req->result);
284	*SvEND (req->sv2) = 0;
285	PUSHs (req->sv2);
286	}
287	break;	568	break;
288		569
289	case EIO_STAT:	570	case EIO_STAT:
290	case EIO_LSTAT:	571	case EIO_LSTAT:
291	case EIO_FSTAT:	572	case EIO_FSTAT:
292	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	573	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		574
293	PL_laststatval = req->result;	575	if (!(PL_laststatval = req->result))
		576	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
294	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	577	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
295	PUSHs (sv_2mortal (newSViv (req->result)));	578
		579	PUSHs (sv_result);
296	break;	580	break;
297		581
		582	case EIO_SEEK:
		583	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		584	break;
		585
298	case EIO_READ:	586	case EIO_READ:
		587	{
299	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	588	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
300	*SvEND (req->sv2) = 0;	589	*SvEND (req->sv2) = 0;
301	PUSHs (sv_2mortal (newSViv (req->result)));	590	SvPOK_only (req->sv2);
		591	SvSETMAGIC (req->sv2);
		592	PUSHs (sv_result);
		593	}
302	break;	594	break;
303		595
304	case EIO_DUP2:	596	case EIO_CUSTOM:
		597	if (req->feed == fiemap)
		598	{
		599	#if HAVE_FIEMAP
		600	if (!req->result)
		601	{
		602	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		603
		604	if (fiemap->fm_extent_count)
		605	{
		606	AV *av = newAV ();
		607	int i;
		608
		609	while (fiemap->fm_mapped_extents)
		610	{
		611	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		612	AV *ext_av = newAV ();
		613
		614	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		615	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		616	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		617	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		618
		619	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		620	}
		621
		622	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		623	}
		624	else
		625	{
		626	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		627	PUSHs (sv_result);
		628	}
		629	}
		630	#endif
		631	}
		632	else
		633	PUSHs (sv_result);
		634	break;
		635
		636	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
305	if (req->result > 0)	637	if (req->result > 0)
306	req->result = 0;	638	SvIV_set (sv_result, 0);
307	/* FALLTHROUGH */	639	/* FALLTHROUGH */
308		640
309	default:	641	default:
310	PUSHs (sv_2mortal (newSViv (req->result)));	642	PUSHs (sv_result);
311	break;	643	break;
312	}	644	}
313		645
314	errno = req->errorno;	646	errno = req->errorno;
315		647
316	PUTBACK;	648	PUTBACK;
317	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	649	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
318	SPAGAIN;	650	SPAGAIN;
319		651
		652	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		653	SvREFCNT_dec (sv_result);
		654	else
		655	sv_result_cache = sv_result;
		656
320	FREETMPS;	657	FREETMPS;
321	LEAVE;	658	LEAVE;
322		659
323	PUTBACK;	660	PUTBACK;
324	}	661	}
325		662
326	return !!SvTRUE (ERRSV);	663	return !!SvTRUE (ERRSV);
327	}	664	}
328		665
		666	static void
329	static void req_destroy (aio_req req)	667	req_destroy (aio_req req)
330	{	668	{
331	if (req->self)	669	if (req->self)
332	{	670	{
333	sv_unmagic (req->self, PERL_MAGIC_ext);	671	sv_unmagic (req->self, PERL_MAGIC_ext);
334	SvREFCNT_dec (req->self);	672	SvREFCNT_dec (req->self);
335	}	673	}
336		674
337	SvREFCNT_dec (req->sv1);	675	SvREFCNT_dec (req->sv1);
338	SvREFCNT_dec (req->sv2);	676	SvREFCNT_dec (req->sv2);
		677	SvREFCNT_dec (req->sv3);
		678	SvREFCNT_dec (req->sv4);
339	SvREFCNT_dec (req->callback);	679	SvREFCNT_dec (req->callback);
340		680
341	Safefree (req);	681	free (req);
342	}	682	}
343		683
		684	static void
344	static void req_cancel_subs (aio_req grp)	685	req_cancel_subs (aio_req grp)
345	{	686	{
346	aio_req sub;
347
348	if (grp->type != EIO_GROUP)	687	if (grp->type != EIO_GROUP)
349	return;	688	return;
350		689
351	SvREFCNT_dec (grp->sv2);	690	SvREFCNT_dec (grp->sv2);
352	grp->sv2 = 0;	691	grp->sv2 = 0;
353		692
354	eio_grp_cancel (grp);	693	eio_grp_cancel (grp);
355	}	694	}
356		695
357	#ifdef USE_SOCKETS_AS_HANDLES	696	static void ecb_cold
358	# define TO_SOCKET(x) (win32_get_osfhandle (x))	697	create_respipe (void)
359	#else	698	{
360	# define TO_SOCKET(x) (x)	699	if (s_epipe_renew (&respipe))
361	#endif	700	croak ("IO::AIO: unable to initialize result pipe");
		701	}
362		702
363	static void	703	static void
364	create_respipe (void)	704	poll_wait (void)
365	{	705	{
366	int old_readfd = respipe [0];
367
368	if (respipe [1] >= 0)
369	respipe_close (TO_SOCKET (respipe [1]));
370
371	#ifdef _WIN32
372	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
373	#else
374	if (pipe (respipe))
375	#endif
376	croak ("unable to initialize result pipe");
377
378	if (old_readfd >= 0)
379	{
380	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
381	croak ("unable to initialize result pipe(2)");
382
383	respipe_close (respipe [0]);
384	respipe [0] = old_readfd;
385	}
386
387	#ifdef _WIN32
388	int arg = 1;
389	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
390	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
391	#else
392	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
393	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
394	#endif
395	croak ("unable to initialize result pipe(3)");
396
397	respipe_osf [0] = TO_SOCKET (respipe [0]);
398	respipe_osf [1] = TO_SOCKET (respipe [1]);
399	}
400
401	static void poll_wait (void)
402	{
403	fd_set rfd;
404
405	while (eio_nreqs ())	706	while (eio_nreqs ())
406	{	707	{
407	int size;	708	int size;
408		709
409	X_LOCK (reslock);	710	X_LOCK (EIO_POOL->reslock);
410	size = res_queue.size;	711	size = EIO_POOL->res_queue.size;
411	X_UNLOCK (reslock);	712	X_UNLOCK (EIO_POOL->reslock);
412		713
413	if (size)	714	if (size)
414	return;	715	return;
415		716
416	maybe_start_thread ();	717	etp_maybe_start_thread (EIO_POOL);
417		718
418	FD_ZERO (&rfd);	719	s_epipe_wait (&respipe);
419	FD_SET (respipe [0], &rfd);
420
421	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
422	}	720	}
423	}	721	}
424		722
425	static int poll_cb (void)	723	static int
		724	poll_cb (void)
426	{	725	{
427	int res;	726	for (;;)
428
429	do
430	{	727	{
431	res = eio_poll ();	728	int res = eio_poll ();
432		729
433	if (res > 0)	730	if (res > 0)
434	croak (0);	731	croak (0);
		732
		733	if (!max_outstanding || max_outstanding > eio_nreqs ())
		734	return res;
		735
		736	poll_wait ();
435	}	737	}
436	while (max_outstanding && max_outstanding <= eio_nreqs ());
437
438	return res;
439	}	738	}
440		739
441	static void atfork_child (void)	740	static void ecb_cold
		741	reinit (void)
442	{	742	{
443	create_respipe ();	743	create_respipe ();
		744
		745	if (eio_init (want_poll, done_poll) < 0)
		746	croak ("IO::AIO: unable to initialise eio library");
		747	}
		748
		749	/*****************************************************************************/
		750
		751	#if !_POSIX_MAPPED_FILES
		752	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		753	# define munmap(addr,length) EIO_ENOSYS ()
		754	#endif
		755
		756	#if !_POSIX_MEMORY_PROTECTION
		757	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		758	#endif
		759
		760	#define MMAP_MAGIC PERL_MAGIC_ext
		761
		762	static int ecb_cold
		763	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		764	{
		765	int old_errno = errno;
		766	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		767	errno = old_errno;
		768
		769	mg->mg_obj = 0; /* just in case */
		770
		771	SvREADONLY_off (sv);
		772
		773	if (SvPVX (sv) != mg->mg_ptr)
		774	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		775
		776	SvCUR_set (sv, 0);
		777	SvPVX (sv) = 0;
		778	SvOK_off (sv);
		779
		780	return 0;
		781	}
		782
		783	static MGVTBL mmap_vtbl = {
		784	0, 0, 0, 0, mmap_free
		785	};
		786
		787	/*****************************************************************************/
		788
		789	static SV *
		790	get_cb (SV *cb_sv)
		791	{
		792	SvGETMAGIC (cb_sv);
		793	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		794	}
		795
		796	static aio_req ecb_noinline
		797	dreq (SV *callback)
		798	{
		799	SV *cb_cv;
		800	aio_req req;
		801	int req_pri = next_pri;
		802	next_pri = EIO_PRI_DEFAULT;
		803
		804	cb_cv = get_cb (callback);
		805
		806	req = calloc (sizeof (*req), 1);
		807	if (!req)
		808	croak ("out of memory during eio_req allocation");
		809
		810	req->callback = SvREFCNT_inc (cb_cv);
		811	req->pri = req_pri;
		812
		813	return req;
444	}	814	}
445		815
446	#define dREQ \	816	#define dREQ \
447	aio_req req; \	817	aio_req req = dreq (callback); \
448	int req_pri = next_pri; \
449	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \
450	\
451	if (SvOK (callback) && !SvROK (callback)) \
452	croak ("callback must be undef or of reference type"); \
453	\
454	Newz (0, req, 1, eio_req); \
455	if (!req) \
456	croak ("out of memory during eio_req allocation"); \
457	\
458	req->callback = newSVsv (callback); \
459	req->pri = req_pri
460		818
461	#define REQ_SEND \	819	#define REQ_SEND \
		820	PUTBACK; \
462	req_submit (req); \	821	req_submit (req); \
		822	SPAGAIN; \
463	\	823	\
464	if (GIMME_V != G_VOID) \	824	if (GIMME_V != G_VOID) \
465	XPUSHs (req_sv (req, AIO_REQ_KLASS));	825	XPUSHs (req_sv (req, aio_req_stash));
466		826
		827	ecb_inline void
		828	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		829	{
		830	if (expect_false (SvROK (path)))
		831	{
		832	SV *rv = SvRV (path);
		833	SV *wdob;
		834
		835	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		836	{
		837	path = AvARRAY (rv)[1];
		838	wdob = AvARRAY (rv)[0];
		839
		840	if (SvOK (wdob))
		841	{
		842	*wd = SvAIO_WD (wdob);
		843	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		844	}
		845	else
		846	*wd = EIO_INVALID_WD;
		847	}
		848	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		849	{
		850	*wd = (aio_wd)(long)SvIVX (rv);
		851	*wdsv = SvREFCNT_inc_NN (rv);
		852	*ptr = ".";
		853	return; /* path set to "." */
		854	}
		855	else
		856	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		857	}
		858
		859	*pathsv = newSVsv (path);
		860	*ptr = SvPVbyte_nolen (*pathsv);
		861	}
		862
		863	static void ecb_noinline
		864	req_set_path1 (aio_req req, SV *path)
		865	{
		866	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		867	}
		868
		869	static void ecb_noinline
		870	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		871	{
		872	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		873
		874	switch (SvTYPE (rv))
		875	{
		876	case SVt_PVIO:
		877	case SVt_PVLV:
		878	case SVt_PVGV:
		879	req->type = type_fh;
		880	req->sv1 = newSVsv (fh_or_path);
		881	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		882	break;
		883
		884	default:
		885	req->type = type_path;
		886	req_set_path1 (req, fh_or_path);
		887	break;
		888	}
		889	}
		890
		891	XS(boot_IO__AIO) ecb_cold;
		892
467	MODULE = IO::AIO PACKAGE = IO::AIO	893	MODULE = IO::AIO PACKAGE = IO::AIO
468		894
469	PROTOTYPES: ENABLE	895	PROTOTYPES: ENABLE
470		896
471	BOOT:	897	BOOT:
472	{	898	{
		899	static const struct {
		900	const char *name;
		901	IV iv;
		902	} *civ, const_iv[] = {
		903	# define const_niv(name, value) { # name, (IV) value },
		904	# define const_iv(name) { # name, (IV) name },
		905	# define const_eio(name) { # name, (IV) EIO_ ## name },
		906
		907	/* you have to re-run ./gendef0 after adding/removing any constants here */
		908	/* the first block can be undef if missing */
		909	const_iv (ENOSYS)
		910	const_iv (EXDEV)
		911	const_iv (EBADR)
		912
		913	/* for lseek */
		914	const_iv (SEEK_DATA)
		915	const_iv (SEEK_HOLE)
		916
		917	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		918	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		919	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		920	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		921	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		922	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		923
		924	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		925	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		926	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		927	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		928	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		929
		930	/* the second block will be 0 when missing */
		931	const_iv (O_RDONLY)
		932	const_iv (O_WRONLY)
		933	const_iv (O_RDWR)
		934	const_iv (O_CREAT)
		935	const_iv (O_TRUNC)
		936	const_iv (O_EXCL)
		937	const_iv (O_APPEND)
		938
		939	const_iv (O_ASYNC)
		940	const_iv (O_DIRECT)
		941	const_iv (O_NOATIME)
		942
		943	const_iv (O_CLOEXEC)
		944	const_iv (O_NOCTTY)
		945	const_iv (O_NOFOLLOW)
		946	const_iv (O_NONBLOCK)
		947	const_iv (O_EXEC)
		948	const_iv (O_SEARCH)
		949	const_iv (O_DIRECTORY)
		950	const_iv (O_DSYNC)
		951	const_iv (O_RSYNC)
		952	const_iv (O_SYNC)
		953	const_iv (O_PATH)
		954	const_iv (O_TMPFILE)
		955	const_iv (O_TTY_INIT)
		956
		957	const_iv (S_IFIFO)
		958	const_iv (S_IFCHR)
		959	const_iv (S_IFBLK)
		960	const_iv (S_IFLNK)
		961	const_iv (S_IFREG)
		962	const_iv (S_IFDIR)
		963	const_iv (S_IFWHT)
		964	const_iv (S_IFSOCK)
		965	const_iv (S_IFMT)
		966
		967	const_iv (ST_RDONLY)
		968	const_iv (ST_NOSUID)
		969	const_iv (ST_NODEV)
		970	const_iv (ST_NOEXEC)
		971	const_iv (ST_SYNCHRONOUS)
		972	const_iv (ST_MANDLOCK)
		973	const_iv (ST_WRITE)
		974	const_iv (ST_APPEND)
		975	const_iv (ST_IMMUTABLE)
		976	const_iv (ST_NOATIME)
		977	const_iv (ST_NODIRATIME)
		978	const_iv (ST_RELATIME)
		979
		980	const_iv (PROT_NONE)
		981	const_iv (PROT_EXEC)
		982	const_iv (PROT_READ)
		983	const_iv (PROT_WRITE)
		984
		985	const_iv (MAP_PRIVATE)
		986	const_iv (MAP_SHARED)
		987	const_iv (MAP_FIXED)
		988	const_iv (MAP_ANONYMOUS)
		989
		990	/* linuxish */
		991	const_iv (MAP_LOCKED)
		992	const_iv (MAP_NORESERVE)
		993	const_iv (MAP_POPULATE)
		994	const_iv (MAP_NONBLOCK)
		995	const_iv (MAP_GROWSDOWN)
		996	const_iv (MAP_32BIT)
		997	const_iv (MAP_HUGETLB)
		998	const_iv (MAP_STACK)
		999
		1000	const_iv (F_DUPFD_CLOEXEC)
		1001
		1002	const_iv (F_OFD_GETLK)
		1003	const_iv (F_OFD_SETLK)
		1004	const_iv (F_OFD_GETLKW)
		1005
		1006	const_iv (FIFREEZE)
		1007	const_iv (FITHAW)
		1008	const_iv (FITRIM)
		1009	const_iv (FICLONE)
		1010	const_iv (FICLONERANGE)
		1011	const_iv (FIDEDUPERANGE)
		1012
		1013	const_iv (FS_IOC_GETFLAGS)
		1014	const_iv (FS_IOC_SETFLAGS)
		1015	const_iv (FS_IOC_GETVERSION)
		1016	const_iv (FS_IOC_SETVERSION)
		1017	const_iv (FS_IOC_FIEMAP)
		1018	const_iv (FS_IOC_FSGETXATTR)
		1019	const_iv (FS_IOC_FSSETXATTR)
		1020	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1021	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1022	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1023
		1024	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1025
		1026	const_iv (FS_SECRM_FL)
		1027	const_iv (FS_UNRM_FL)
		1028	const_iv (FS_COMPR_FL)
		1029	const_iv (FS_SYNC_FL)
		1030	const_iv (FS_IMMUTABLE_FL)
		1031	const_iv (FS_APPEND_FL)
		1032	const_iv (FS_NODUMP_FL)
		1033	const_iv (FS_NOATIME_FL)
		1034	const_iv (FS_DIRTY_FL)
		1035	const_iv (FS_COMPRBLK_FL)
		1036	const_iv (FS_NOCOMP_FL)
		1037	const_iv (FS_ENCRYPT_FL)
		1038	const_iv (FS_BTREE_FL)
		1039	const_iv (FS_INDEX_FL)
		1040	const_iv (FS_JOURNAL_DATA_FL)
		1041	const_iv (FS_NOTAIL_FL)
		1042	const_iv (FS_DIRSYNC_FL)
		1043	const_iv (FS_TOPDIR_FL)
		1044	const_iv (FS_FL_USER_MODIFIABLE)
		1045
		1046	const_iv (FS_XFLAG_REALTIME)
		1047	const_iv (FS_XFLAG_PREALLOC)
		1048	const_iv (FS_XFLAG_IMMUTABLE)
		1049	const_iv (FS_XFLAG_APPEND)
		1050	const_iv (FS_XFLAG_SYNC)
		1051	const_iv (FS_XFLAG_NOATIME)
		1052	const_iv (FS_XFLAG_NODUMP)
		1053	const_iv (FS_XFLAG_RTINHERIT)
		1054	const_iv (FS_XFLAG_PROJINHERIT)
		1055	const_iv (FS_XFLAG_NOSYMLINKS)
		1056	const_iv (FS_XFLAG_EXTSIZE)
		1057	const_iv (FS_XFLAG_EXTSZINHERIT)
		1058	const_iv (FS_XFLAG_NODEFRAG)
		1059	const_iv (FS_XFLAG_FILESTREAM)
		1060	const_iv (FS_XFLAG_DAX)
		1061	const_iv (FS_XFLAG_HASATTR)
		1062
		1063	const_iv (FIEMAP_FLAG_SYNC)
		1064	const_iv (FIEMAP_FLAG_XATTR)
		1065	const_iv (FIEMAP_FLAGS_COMPAT)
		1066	const_iv (FIEMAP_EXTENT_LAST)
		1067	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1068	const_iv (FIEMAP_EXTENT_DELALLOC)
		1069	const_iv (FIEMAP_EXTENT_ENCODED)
		1070	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1071	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1072	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1073	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1074	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1075	const_iv (FIEMAP_EXTENT_MERGED)
		1076	const_iv (FIEMAP_EXTENT_SHARED)
		1077
		1078	const_iv (SPLICE_F_MOVE)
		1079	const_iv (SPLICE_F_NONBLOCK)
		1080	const_iv (SPLICE_F_MORE)
		1081	const_iv (SPLICE_F_GIFT)
		1082
		1083	/* these are libeio constants, and are independent of gendef0 */
		1084	const_eio (SEEK_SET)
		1085	const_eio (SEEK_CUR)
		1086	const_eio (SEEK_END)
		1087
		1088	const_eio (MCL_FUTURE)
		1089	const_eio (MCL_CURRENT)
		1090
		1091	const_eio (MS_ASYNC)
		1092	const_eio (MS_INVALIDATE)
		1093	const_eio (MS_SYNC)
		1094
		1095	const_eio (MT_MODIFY)
		1096
		1097	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		1098	const_eio (SYNC_FILE_RANGE_WRITE)
		1099	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1100
		1101	const_eio (FALLOC_FL_KEEP_SIZE)
		1102	const_eio (FALLOC_FL_PUNCH_HOLE)
		1103	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1104	const_eio (FALLOC_FL_ZERO_RANGE)
		1105
		1106	const_eio (RENAME_NOREPLACE)
		1107	const_eio (RENAME_EXCHANGE)
		1108	const_eio (RENAME_WHITEOUT)
		1109
		1110	const_eio (READDIR_DENTS)
		1111	const_eio (READDIR_DIRS_FIRST)
		1112	const_eio (READDIR_STAT_ORDER)
		1113	const_eio (READDIR_FOUND_UNKNOWN)
		1114
		1115	const_eio (DT_UNKNOWN)
		1116	const_eio (DT_FIFO)
		1117	const_eio (DT_CHR)
		1118	const_eio (DT_DIR)
		1119	const_eio (DT_BLK)
		1120	const_eio (DT_REG)
		1121	const_eio (DT_LNK)
		1122	const_eio (DT_SOCK)
		1123	const_eio (DT_WHT)
		1124	};
		1125
473	stash = gv_stashpv ("IO::AIO", 1);	1126	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1127	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1128	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1129	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
474		1130
475	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1131	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
476	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1132	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
477	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
478	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
479	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
480	#ifdef _WIN32
481	X_MUTEX_CHECK (wrklock);
482	X_MUTEX_CHECK (reslock);
483	X_MUTEX_CHECK (reqlock);
484	X_MUTEX_CHECK (reqwait);
485	X_MUTEX_CHECK (preadwritelock);
486	X_MUTEX_CHECK (readdirlock);
487		1133
488	X_COND_CHECK (reqwait);	1134	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
489	#else
490	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
491	#endif
492		1135
493	create_respipe ();	1136	reinit ();
494
495	if (eio_init (want_poll, done_poll) < 0)
496	croak ("IO::AIO: unable to initialise eio library");
497
498	/* atfork child called in fifo order, so before eio's handler */
499	X_THREAD_ATFORK (0, 0, atfork_child);
500	}	1137	}
501		1138
502	void	1139	void
		1140	reinit ()
		1141	PROTOTYPE:
		1142
		1143	void
503	max_poll_reqs (int nreqs)	1144	max_poll_reqs (unsigned int nreqs)
504	PROTOTYPE: $	1145	PROTOTYPE: $
505	CODE:	1146	CODE:
506	eio_set_max_poll_reqs (nreqs);	1147	eio_set_max_poll_reqs (nreqs);
507		1148
508	void	1149	void
…		…
510	PROTOTYPE: $	1151	PROTOTYPE: $
511	CODE:	1152	CODE:
512	eio_set_max_poll_time (nseconds);	1153	eio_set_max_poll_time (nseconds);
513		1154
514	void	1155	void
515	min_parallel (int nthreads)	1156	min_parallel (unsigned int nthreads)
516	PROTOTYPE: $	1157	PROTOTYPE: $
517	CODE:	1158	CODE:
518	eio_set_min_parallel (nthreads);	1159	eio_set_min_parallel (nthreads);
519		1160
520	void	1161	void
521	max_parallel (int nthreads)	1162	max_parallel (unsigned int nthreads)
522	PROTOTYPE: $	1163	PROTOTYPE: $
523	CODE:	1164	CODE:
524	eio_set_max_parallel (nthreads);	1165	eio_set_max_parallel (nthreads);
525		1166
526	void	1167	void
527	max_idle (int nthreads)	1168	max_idle (unsigned int nthreads)
528	PROTOTYPE: $	1169	PROTOTYPE: $
529	CODE:	1170	CODE:
530	eio_set_max_idle (nthreads);	1171	eio_set_max_idle (nthreads);
531		1172
532	void	1173	void
		1174	idle_timeout (unsigned int seconds)
		1175	PROTOTYPE: $
		1176	CODE:
		1177	eio_set_idle_timeout (seconds);
		1178
		1179	void
533	max_outstanding (int maxreqs)	1180	max_outstanding (unsigned int maxreqs)
534	PROTOTYPE: $	1181	PROTOTYPE: $
535	CODE:	1182	CODE:
536	max_outstanding = maxreqs;	1183	max_outstanding = maxreqs;
537		1184
538	void	1185	void
539	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1186	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
540	PROTOTYPE: $$$;$
541	PPCODE:	1187	PPCODE:
542	{	1188	{
543	dREQ;	1189	dREQ;
544		1190
		1191	req->type = EIO_WD_OPEN;
		1192	req_set_path1 (req, pathname);
		1193
		1194	REQ_SEND;
		1195	}
		1196
		1197	void
		1198	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1199	PPCODE:
		1200	{
		1201	dREQ;
		1202
545	req->type = EIO_OPEN;	1203	req->type = EIO_OPEN;
546	req->sv1 = newSVsv (pathname);	1204	req_set_path1 (req, pathname);
547	req->ptr1 = SvPVbyte_nolen (req->sv1);
548	req->int1 = flags;	1205	req->int1 = flags;
549	req->int2 = mode;	1206	req->int2 = mode;
550		1207
551	REQ_SEND;	1208	REQ_SEND;
552	}	1209	}
553		1210
554	void	1211	void
555	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1212	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
556	PROTOTYPE: $;$
557	ALIAS:	1213	ALIAS:
558	aio_fsync = EIO_FSYNC	1214	aio_fsync = EIO_FSYNC
559	aio_fdatasync = EIO_FDATASYNC	1215	aio_fdatasync = EIO_FDATASYNC
		1216	aio_syncfs = EIO_SYNCFS
560	PPCODE:	1217	PPCODE:
561	{	1218	{
		1219	int fd = s_fileno_croak (fh, 0);
562	dREQ;	1220	dREQ;
563		1221
564	req->type = ix;	1222	req->type = ix;
565	req->sv1 = newSVsv (fh);	1223	req->sv1 = newSVsv (fh);
566	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1224	req->int1 = fd;
567		1225
568	REQ_SEND (req);	1226	REQ_SEND;
569	}	1227	}
570		1228
571	void	1229	void
572	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1230	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
573	PROTOTYPE: $;$
574	PPCODE:	1231	PPCODE:
575	{	1232	{
576	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1233	int fd = s_fileno_croak (fh, 0);
577	dREQ;	1234	dREQ;
578		1235
579	if (close_pipe < 0)	1236	req->type = EIO_SYNC_FILE_RANGE;
		1237	req->sv1 = newSVsv (fh);
		1238	req->int1 = fd;
		1239	req->offs = offset;
		1240	req->size = nbytes;
		1241	req->int2 = flags;
		1242
		1243	REQ_SEND;
		1244	}
		1245
		1246	void
		1247	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
		1248	PPCODE:
		1249	{
		1250	int fd = s_fileno_croak (fh, 0);
		1251	dREQ;
		1252
		1253	req->type = EIO_FALLOCATE;
		1254	req->sv1 = newSVsv (fh);
		1255	req->int1 = fd;
		1256	req->int2 = mode;
		1257	req->offs = offset;
		1258	req->size = len;
		1259
		1260	REQ_SEND;
		1261	}
		1262
		1263	void
		1264	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1265	PPCODE:
		1266	{
		1267	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1268	int fd = s_fileno_croak (fh, 0);
		1269	dREQ;
		1270
		1271	if (expect_false (close_fd < 0))
580	{	1272	{
581	int pipefd [2];	1273	int pipefd [2];
582		1274
		1275	if (
		1276	#ifdef _WIN32
		1277	_pipe (pipefd, 1, _O_BINARY) < 0
		1278	#else
583	if (pipe (pipefd) < 0	1279	pipe (pipefd) < 0
584	|| close (pipefd [1]) < 0
585	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1280	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1281	#endif
		1282	|| close (pipefd [1]) < 0
		1283	)
586	abort (); /*D*/	1284	abort (); /*D*/
587		1285
588	close_pipe = pipefd [0];	1286	close_fd = pipefd [0];
589	}	1287	}
590		1288
591	req->type = EIO_DUP2;	1289	req->type = EIO_DUP2;
592	req->int1 = close_pipe;	1290	req->int1 = close_fd;
593	req->sv2 = newSVsv (fh);	1291	req->sv2 = newSVsv (fh);
594	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1292	req->int2 = fd;
595		1293
596	REQ_SEND (req);	1294	REQ_SEND;
597	}	1295	}
598		1296
599	void	1297	void
		1298	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1299	PPCODE:
		1300	{
		1301	int fd = s_fileno_croak (fh, 0);
		1302	dREQ;
		1303
		1304	req->type = EIO_SEEK;
		1305	req->sv1 = newSVsv (fh);
		1306	req->int1 = fd;
		1307	req->offs = SvVAL64 (offset);
		1308	req->int2 = whence;
		1309
		1310	REQ_SEND;
		1311	}
		1312
		1313	void
600	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1314	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
601	ALIAS:	1315	ALIAS:
602	aio_read = EIO_READ	1316	aio_read = EIO_READ
603	aio_write = EIO_WRITE	1317	aio_write = EIO_WRITE
604	PROTOTYPE: $$$$$;$
605	PPCODE:	1318	PPCODE:
606	{	1319	{
607	STRLEN svlen;	1320	STRLEN svlen;
		1321	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
608	char *svptr = SvPVbyte (data, svlen);	1322	char *svptr = SvPVbyte (data, svlen);
609	UV len = SvUV (length);	1323	UV len = SvUV (length);
610
611	SvUPGRADE (data, SVt_PV);
612	SvPOK_on (data);
613		1324
614	if (dataoffset < 0)	1325	if (dataoffset < 0)
615	dataoffset += svlen;	1326	dataoffset += svlen;
616		1327
617	if (dataoffset < 0 || dataoffset > svlen)	1328	if (dataoffset < 0 || dataoffset > svlen)
…		…
623	if (!SvOK (length) || len + dataoffset > svlen)	1334	if (!SvOK (length) || len + dataoffset > svlen)
624	len = svlen - dataoffset;	1335	len = svlen - dataoffset;
625	}	1336	}
626	else	1337	else
627	{	1338	{
628	/* read: grow scalar as necessary */	1339	/* read: check type and grow scalar as necessary */
		1340	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
629	svptr = SvGROW (data, len + dataoffset + 1);	1341	svptr = sv_grow (data, len + dataoffset + 1);
		1342	else if (SvCUR (data) < len + dataoffset)
		1343	croak ("length + dataoffset outside of scalar, and cannot grow");
630	}	1344	}
631
632	if (len < 0)
633	croak ("length must not be negative");
634		1345
635	{	1346	{
636	dREQ;	1347	dREQ;
637		1348
638	req->type = ix;	1349	req->type = ix;
639	req->sv1 = newSVsv (fh);	1350	req->sv1 = newSVsv (fh);
640	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1351	req->int1 = fd;
641	: IoOFP (sv_2io (fh)));
642	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1352	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
643	req->size = len;	1353	req->size = len;
644	req->sv2 = SvREFCNT_inc (data);	1354	req->sv2 = SvREFCNT_inc (data);
645	req->ptr2 = (char *)svptr + dataoffset;	1355	req->ptr2 = (char *)svptr + dataoffset;
646	req->stroffset = dataoffset;	1356	req->stroffset = dataoffset;
…		…
654	REQ_SEND;	1364	REQ_SEND;
655	}	1365	}
656	}	1366	}
657		1367
658	void	1368	void
659	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1369	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
660	PROTOTYPE: $$;$	1370	ALIAS:
		1371	aio_ioctl = EIO_IOCTL
		1372	aio_fcntl = EIO_FCNTL
661	PPCODE:	1373	PPCODE:
662	{	1374	{
663	SV *data;	1375	int fd = s_fileno_croak (fh, 0);
		1376	char *svptr;
		1377
		1378	if (SvPOK (arg) || !SvNIOK (arg))
		1379	{
		1380	STRLEN svlen;
		1381	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1382	#ifdef IOCPARM_LEN
		1383	STRLEN need = IOCPARM_LEN (request);
		1384	#else
		1385	STRLEN need = 256;
		1386	#endif
		1387
		1388	if (svlen < need)
		1389	svptr = SvGROW (arg, need);
		1390	}
		1391	else
		1392	svptr = (char *)SvIV (arg);
		1393
		1394	{
		1395	dREQ;
		1396
		1397	req->type = ix;
		1398	req->sv1 = newSVsv (fh);
		1399	req->int1 = fd;
		1400	req->int2 = (long)request;
		1401	req->sv2 = SvREFCNT_inc (arg);
		1402	req->ptr2 = svptr;
		1403
		1404	REQ_SEND;
		1405	}
		1406	}
		1407
		1408	void
		1409	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1410	ALIAS:
		1411	aio_readlink = EIO_READLINK
		1412	aio_realpath = EIO_REALPATH
		1413	PPCODE:
		1414	{
664	dREQ;	1415	dREQ;
665		1416
666	data = newSV (NAME_MAX);
667	SvPOK_on (data);
668
669	req->type = EIO_READLINK;	1417	req->type = ix;
670	req->sv1 = newSVsv (path);	1418	req_set_path1 (req, pathname);
671	req->ptr1 = SvPVbyte_nolen (req->sv1);
672	req->sv2 = data;
673	req->ptr2 = SvPVbyte_nolen (data);
674		1419
675	REQ_SEND;	1420	REQ_SEND;
676	}	1421	}
677		1422
678	void	1423	void
679	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1424	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
680	PROTOTYPE: $$$$;$
681	PPCODE:	1425	PPCODE:
682	{	1426	{
		1427	int ifd = s_fileno_croak (in_fh , 0);
		1428	int ofd = s_fileno_croak (out_fh, 1);
683	dREQ;	1429	dREQ;
684		1430
685	req->type = EIO_SENDFILE;	1431	req->type = EIO_SENDFILE;
686	req->sv1 = newSVsv (out_fh);	1432	req->sv1 = newSVsv (out_fh);
687	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1433	req->int1 = ofd;
688	req->sv2 = newSVsv (in_fh);	1434	req->sv2 = newSVsv (in_fh);
689	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1435	req->int2 = ifd;
690	req->offs = SvVAL64 (in_offset);	1436	req->offs = in_offset;
691	req->size = length;	1437	req->size = length;
692		1438
693	REQ_SEND;	1439	REQ_SEND;
694	}	1440	}
695		1441
696	void	1442	void
697	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1443	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
698	PROTOTYPE: $$$;$
699	PPCODE:	1444	PPCODE:
700	{	1445	{
		1446	int fd = s_fileno_croak (fh, 0);
701	dREQ;	1447	dREQ;
702		1448
703	req->type = EIO_READAHEAD;	1449	req->type = EIO_READAHEAD;
704	req->sv1 = newSVsv (fh);	1450	req->sv1 = newSVsv (fh);
705	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1451	req->int1 = fd;
706	req->offs = SvVAL64 (offset);	1452	req->offs = offset;
707	req->size = length;	1453	req->size = length;
708		1454
709	REQ_SEND;	1455	REQ_SEND;
710	}	1456	}
711		1457
712	void	1458	void
713	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1459	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
714	ALIAS:	1460	ALIAS:
715	aio_stat = EIO_STAT	1461	aio_stat = EIO_STAT
716	aio_lstat = EIO_LSTAT	1462	aio_lstat = EIO_LSTAT
		1463	aio_statvfs = EIO_STATVFS
717	PPCODE:	1464	PPCODE:
718	{	1465	{
719	dREQ;	1466	dREQ;
720		1467
721	req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));	1468	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
722	if (!req->ptr2)
723	{
724	req_destroy (req);
725	croak ("out of memory during aio_stat statdata allocation");
726	}
727
728	req->flags |= EIO_FLAG_PTR2_FREE;
729	req->sv1 = newSVsv (fh_or_path);
730
731	if (SvPOK (fh_or_path))
732	{
733	req->type = ix;
734	req->ptr1 = SvPVbyte_nolen (req->sv1);
735	}
736	else
737	{
738	req->type = EIO_FSTAT;
739	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
740	}
741		1469
742	REQ_SEND;	1470	REQ_SEND;
743	}	1471	}
744		1472
		1473	UV
		1474	major (UV dev)
		1475	ALIAS:
		1476	minor = 1
		1477	CODE:
		1478	RETVAL = ix ? minor (dev) : major (dev);
		1479	OUTPUT:
		1480	RETVAL
		1481
		1482	UV
		1483	makedev (UV maj, UV min)
		1484	CODE:
		1485	RETVAL = makedev (maj, min);
		1486	OUTPUT:
		1487	RETVAL
		1488
745	void	1489	void
746	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1490	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
747	PPCODE:	1491	PPCODE:
748	{	1492	{
749	dREQ;	1493	dREQ;
750		1494
751	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1495	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
752	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1496	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
753	req->sv1 = newSVsv (fh_or_path);	1497	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
754
755	if (SvPOK (fh_or_path))
756	{
757	req->type = EIO_UTIME;
758	req->ptr1 = SvPVbyte_nolen (req->sv1);
759	}
760	else
761	{
762	req->type = EIO_FUTIME;
763	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
764	}
765		1498
766	REQ_SEND;	1499	REQ_SEND;
767	}	1500	}
768		1501
769	void	1502	void
770	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1503	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
771	PPCODE:	1504	PPCODE:
772	{	1505	{
773	dREQ;	1506	dREQ;
774		1507
775	req->sv1 = newSVsv (fh_or_path);
776	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1508	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
777		1509	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
778	if (SvPOK (fh_or_path))
779	{
780	req->type = EIO_TRUNCATE;
781	req->ptr1 = SvPVbyte_nolen (req->sv1);
782	}
783	else
784	{
785	req->type = EIO_FTRUNCATE;
786	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
787	}
788		1510
789	REQ_SEND;	1511	REQ_SEND;
790	}	1512	}
791		1513
792	void	1514	void
793	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1515	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
794	ALIAS:
795	aio_chmod = EIO_CHMOD
796	aio_fchmod = EIO_FCHMOD
797	aio_mkdir = EIO_MKDIR
798	PPCODE:	1516	PPCODE:
799	{	1517	{
800	dREQ;	1518	dREQ;
801		1519
802	req->type = ix;
803	req->int2 = mode;	1520	req->int2 = mode;
804	req->sv1 = newSVsv (fh_or_path);	1521	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
805
806	if (ix == EIO_FCHMOD)
807	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
808	else
809	req->ptr1 = SvPVbyte_nolen (req->sv1);
810		1522
811	REQ_SEND;	1523	REQ_SEND;
812	}	1524	}
813		1525
814	void	1526	void
815	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1527	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
816	PPCODE:	1528	PPCODE:
817	{	1529	{
818	dREQ;	1530	dREQ;
819		1531
820	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1532	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
821	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1533	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
822	req->sv1 = newSVsv (fh_or_path);	1534	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
823
824	if (SvPOK (fh_or_path))
825	{
826	req->type = EIO_CHOWN;
827	req->ptr1 = SvPVbyte_nolen (req->sv1);
828	}
829	else
830	{
831	req->type = EIO_FCHOWN;
832	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
833	}
834		1535
835	REQ_SEND;	1536	REQ_SEND;
836	}	1537	}
837		1538
838	void	1539	void
		1540	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
		1541	PPCODE:
		1542	{
		1543	dREQ;
		1544
		1545	req->type = EIO_READDIR;
		1546	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1547
		1548	if (flags & EIO_READDIR_DENTS)
		1549	req->int1 |= EIO_READDIR_CUSTOM2;
		1550
		1551	req_set_path1 (req, pathname);
		1552
		1553	REQ_SEND;
		1554	}
		1555
		1556	void
		1557	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1558	PPCODE:
		1559	{
		1560	dREQ;
		1561
		1562	req->type = EIO_MKDIR;
		1563	req->int2 = mode;
		1564	req_set_path1 (req, pathname);
		1565
		1566	REQ_SEND;
		1567	}
		1568
		1569	void
839	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1570	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
840	ALIAS:	1571	ALIAS:
841	aio_unlink = EIO_UNLINK	1572	aio_unlink = EIO_UNLINK
842	aio_rmdir = EIO_RMDIR	1573	aio_rmdir = EIO_RMDIR
843	aio_readdir = EIO_READDIR	1574	aio_readdir = EIO_READDIR
844	PPCODE:	1575	PPCODE:
845	{	1576	{
846	dREQ;	1577	dREQ;
847		1578
848	req->type = ix;	1579	req->type = ix;
849	req->sv1 = newSVsv (pathname);	1580	req_set_path1 (req, pathname);
850	req->ptr1 = SvPVbyte_nolen (req->sv1);
851		1581
852	REQ_SEND;	1582	REQ_SEND;
853	}	1583	}
854		1584
855	void	1585	void
856	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1586	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
857	ALIAS:	1587	ALIAS:
858	aio_link = EIO_LINK	1588	aio_link = EIO_LINK
859	aio_symlink = EIO_SYMLINK	1589	aio_symlink = EIO_SYMLINK
860	aio_rename = EIO_RENAME	1590	aio_rename = EIO_RENAME
861	PPCODE:	1591	PPCODE:
862	{	1592	{
		1593	eio_wd wd2 = 0;
863	dREQ;	1594	dREQ;
864		1595
865	req->type = ix;	1596	req->type = ix;
866	req->sv1 = newSVsv (oldpath);	1597	req_set_path1 (req, oldpath);
867	req->ptr1 = SvPVbyte_nolen (req->sv1);	1598	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
868	req->sv2 = newSVsv (newpath);	1599	req->int3 = (long)wd2;
869	req->ptr2 = SvPVbyte_nolen (req->sv2);
870		1600
871	REQ_SEND;	1601	REQ_SEND;
872	}	1602	}
873		1603
874	void	1604	void
		1605	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1606	PPCODE:
		1607	{
		1608	eio_wd wd2 = 0;
		1609	dREQ;
		1610
		1611	req->type = EIO_RENAME;
		1612	req_set_path1 (req, oldpath);
		1613	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1614	req->int2 = flags;
		1615	req->int3 = (long)wd2;
		1616
		1617	REQ_SEND;
		1618	}
		1619
		1620	void
875	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1621	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
876	PPCODE:	1622	PPCODE:
877	{	1623	{
878	dREQ;	1624	dREQ;
879		1625
880	req->type = EIO_MKNOD;	1626	req->type = EIO_MKNOD;
881	req->sv1 = newSVsv (pathname);
882	req->ptr1 = SvPVbyte_nolen (req->sv1);
883	req->int2 = (mode_t)mode;	1627	req->int2 = (mode_t)mode;
884	req->offs = dev;	1628	req->offs = dev;
		1629	req_set_path1 (req, pathname);
885		1630
886	REQ_SEND;	1631	REQ_SEND;
887	}	1632	}
888		1633
889	void	1634	void
		1635	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
		1636	ALIAS:
		1637	aio_mtouch = EIO_MTOUCH
		1638	aio_msync = EIO_MSYNC
		1639	PPCODE:
		1640	{
		1641	STRLEN svlen;
		1642	char *svptr = SvPVbyte (data, svlen);
		1643	UV len = SvUV (length);
		1644
		1645	if (flags < 0)
		1646	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
		1647
		1648	if (offset < 0)
		1649	offset += svlen;
		1650
		1651	if (offset < 0 || offset > svlen)
		1652	croak ("offset outside of scalar");
		1653
		1654	if (!SvOK (length) || len + offset > svlen)
		1655	len = svlen - offset;
		1656
		1657	{
		1658	dREQ;
		1659
		1660	req->type = ix;
		1661	req->sv2 = SvREFCNT_inc (data);
		1662	req->ptr2 = (char *)svptr + offset;
		1663	req->size = len;
		1664	req->int1 = flags;
		1665
		1666	REQ_SEND;
		1667	}
		1668	}
		1669
		1670	void
		1671	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1672	PPCODE:
		1673	{
		1674	STRLEN svlen;
		1675	char *svptr = SvPVbyte (data, svlen);
		1676	UV len = SvUV (length);
		1677
		1678	if (offset < 0)
		1679	offset += svlen;
		1680
		1681	if (offset < 0 || offset > svlen)
		1682	croak ("offset outside of scalar");
		1683
		1684	if (!SvOK (length) || len + offset > svlen)
		1685	len = svlen - offset;
		1686
		1687	{
		1688	dREQ;
		1689
		1690	req->type = EIO_MLOCK;
		1691	req->sv2 = SvREFCNT_inc (data);
		1692	req->ptr2 = (char *)svptr + offset;
		1693	req->size = len;
		1694
		1695	REQ_SEND;
		1696	}
		1697	}
		1698
		1699	void
		1700	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1701	PPCODE:
		1702	{
		1703	dREQ;
		1704
		1705	req->type = EIO_MLOCKALL;
		1706	req->int1 = flags;
		1707
		1708	REQ_SEND;
		1709	}
		1710
		1711	void
		1712	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1713	PPCODE:
		1714	{
		1715	int fd = s_fileno_croak (fh, 0);
		1716	dREQ;
		1717
		1718	req->type = EIO_CUSTOM;
		1719	req->sv1 = newSVsv (fh);
		1720	req->int1 = fd;
		1721
		1722	req->feed = fiemap;
		1723	#if HAVE_FIEMAP
		1724	/* keep our fingers crossed that the next two types are 64 bit */
		1725	req->offs = start;
		1726	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1727	req->int2 = flags;
		1728	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1729	#endif
		1730
		1731	REQ_SEND;
		1732	}
		1733
		1734	void
890	aio_busy (double delay, SV *callback=&PL_sv_undef)	1735	aio_busy (double delay, SV *callback = &PL_sv_undef)
891	PPCODE:	1736	PPCODE:
892	{	1737	{
893	dREQ;	1738	dREQ;
894		1739
895	req->type = EIO_BUSY;	1740	req->type = EIO_BUSY;
…		…
897		1742
898	REQ_SEND;	1743	REQ_SEND;
899	}	1744	}
900		1745
901	void	1746	void
902	aio_group (SV *callback=&PL_sv_undef)	1747	aio_group (SV *callback = &PL_sv_undef)
903	PROTOTYPE: ;$
904	PPCODE:	1748	PPCODE:
905	{	1749	{
906	dREQ;	1750	dREQ;
907		1751
908	req->type = EIO_GROUP;	1752	req->type = EIO_GROUP;
909		1753
		1754	PUTBACK;
910	eio_submit (req);	1755	req_submit (req);
		1756	SPAGAIN;
		1757
911	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1758	XPUSHs (req_sv (req, aio_grp_stash));
912	}	1759	}
913		1760
914	void	1761	void
915	aio_nop (SV *callback=&PL_sv_undef)	1762	aio_nop (SV *callback = &PL_sv_undef)
916	ALIAS:	1763	ALIAS:
917	aio_nop = EIO_NOP	1764	aio_nop = EIO_NOP
918	aio_sync = EIO_SYNC	1765	aio_sync = EIO_SYNC
919	PPCODE:	1766	PPCODE:
920	{	1767	{
…		…
924		1771
925	REQ_SEND;	1772	REQ_SEND;
926	}	1773	}
927		1774
928	int	1775	int
929	aioreq_pri (int pri = 0)	1776	aioreq_pri (int pri = NO_INIT)
930	PROTOTYPE: ;$
931	CODE:	1777	CODE:
932	RETVAL = next_pri - EIO_PRI_BIAS;	1778	RETVAL = next_pri;
933	if (items > 0)	1779	if (items > 0)
934	{	1780	{
935	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1781	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
936	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1782	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
937	next_pri = pri + EIO_PRI_BIAS;	1783	next_pri = pri;
938	}	1784	}
939	OUTPUT:	1785	OUTPUT:
940	RETVAL	1786	RETVAL
941		1787
942	void	1788	void
943	aioreq_nice (int nice = 0)	1789	aioreq_nice (int nice = 0)
944	CODE:	1790	CODE:
945	nice = next_pri - nice;	1791	nice = next_pri - nice;
946	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1792	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
947	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1793	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
948	next_pri = nice + EIO_PRI_BIAS;	1794	next_pri = nice;
949		1795
950	void	1796	void
951	flush ()	1797	flush ()
952	PROTOTYPE:
953	CODE:	1798	CODE:
954	while (eio_nreqs ())	1799	while (eio_nreqs ())
955	{	1800	{
956	poll_wait ();	1801	poll_wait ();
957	poll_cb ();	1802	poll_cb ();
958	}	1803	}
959		1804
960	int	1805	int
961	poll()	1806	poll ()
962	PROTOTYPE:
963	CODE:	1807	CODE:
964	poll_wait ();	1808	poll_wait ();
965	RETVAL = poll_cb ();	1809	RETVAL = poll_cb ();
966	OUTPUT:	1810	OUTPUT:
967	RETVAL	1811	RETVAL
968		1812
969	int	1813	int
970	poll_fileno()	1814	poll_fileno ()
971	PROTOTYPE:
972	CODE:	1815	CODE:
973	RETVAL = respipe [0];	1816	RETVAL = s_epipe_fd (&respipe);
974	OUTPUT:	1817	OUTPUT:
975	RETVAL	1818	RETVAL
976		1819
977	int	1820	int
978	poll_cb(...)	1821	poll_cb (...)
979	PROTOTYPE:	1822	PROTOTYPE:
980	CODE:	1823	CODE:
981	RETVAL = poll_cb ();	1824	RETVAL = poll_cb ();
982	OUTPUT:	1825	OUTPUT:
983	RETVAL	1826	RETVAL
984		1827
985	void	1828	void
986	poll_wait()	1829	poll_wait ()
987	PROTOTYPE:
988	CODE:	1830	CODE:
989	poll_wait ();	1831	poll_wait ();
990		1832
991	int	1833	int
992	nreqs()	1834	nreqs ()
993	PROTOTYPE:
994	CODE:	1835	CODE:
995	RETVAL = eio_nreqs ();	1836	RETVAL = eio_nreqs ();
996	OUTPUT:	1837	OUTPUT:
997	RETVAL	1838	RETVAL
998		1839
999	int	1840	int
1000	nready()	1841	nready ()
1001	PROTOTYPE:
1002	CODE:	1842	CODE:
1003	RETVAL = eio_nready ();	1843	RETVAL = eio_nready ();
1004	OUTPUT:	1844	OUTPUT:
1005	RETVAL	1845	RETVAL
1006		1846
1007	int	1847	int
1008	npending()	1848	npending ()
1009	PROTOTYPE:
1010	CODE:	1849	CODE:
1011	RETVAL = eio_npending ();	1850	RETVAL = eio_npending ();
1012	OUTPUT:	1851	OUTPUT:
1013	RETVAL	1852	RETVAL
1014		1853
1015	int	1854	int
1016	nthreads()	1855	nthreads ()
1017	PROTOTYPE:
1018	CODE:	1856	CODE:
1019	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1857	RETVAL = eio_nthreads ();
1020	RETVAL = started;
1021	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1022	OUTPUT:	1858	OUTPUT:
1023	RETVAL	1859	RETVAL
		1860
		1861	int
		1862	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1863	CODE:
		1864	RETVAL = posix_fadvise (fh, offset, length, advice);
		1865	OUTPUT:
		1866	RETVAL
		1867
		1868	IV
		1869	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1870	CODE:
		1871	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1872	OUTPUT:
		1873	RETVAL
		1874
		1875	void
		1876	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1877	PPCODE:
		1878	sv_unmagic (scalar, MMAP_MAGIC);
		1879	{
		1880	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1881	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1882	if (addr == (void *)-1)
		1883	XSRETURN_NO;
		1884
		1885	sv_force_normal (scalar);
		1886
		1887	/* we store the length in mg_obj, as namlen is I32 :/ */
		1888	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1889	->mg_obj = (SV *)length;
		1890
		1891	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1892
		1893	if (!(prot & PROT_WRITE))
		1894	SvREADONLY_on (scalar);
		1895
		1896	if (SvLEN (scalar))
		1897	Safefree (SvPVX (scalar));
		1898
		1899	SvPVX (scalar) = (char *)addr;
		1900	SvCUR_set (scalar, length);
		1901	SvLEN_set (scalar, 0);
		1902	SvPOK_only (scalar);
		1903
		1904	XSRETURN_YES;
		1905	}
		1906
		1907	void
		1908	munmap (SV *scalar)
		1909	CODE:
		1910	sv_unmagic (scalar, MMAP_MAGIC);
		1911
		1912	int
		1913	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1914	ALIAS:
		1915	mprotect = 1
		1916	CODE:
		1917	{
		1918	STRLEN svlen;
		1919	void *addr = SvPVbyte (scalar, svlen);
		1920	STRLEN len = SvUV (length);
		1921
		1922	if (offset < 0)
		1923	offset += svlen;
		1924
		1925	if (offset < 0 || offset > svlen)
		1926	croak ("offset outside of scalar");
		1927
		1928	if (!SvOK (length) || len + offset > svlen)
		1929	len = svlen - offset;
		1930
		1931	addr = (void *)(((intptr_t)addr) + offset);
		1932	eio_page_align (&addr, &len);
		1933
		1934	switch (ix)
		1935	{
		1936	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1937	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1938	}
		1939	}
		1940	OUTPUT:
		1941	RETVAL
		1942
		1943	int
		1944	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		1945	CODE:
		1946	{
		1947	STRLEN svlen;
		1948	void *addr = SvPVbyte (scalar, svlen);
		1949	size_t len = SvUV (length);
		1950
		1951	if (offset < 0)
		1952	offset += svlen;
		1953
		1954	if (offset < 0 || offset > svlen)
		1955	croak ("offset outside of scalar");
		1956
		1957	if (!SvOK (length) || len + offset > svlen)
		1958	len = svlen - offset;
		1959
		1960	addr = (void *)(((intptr_t)addr) + offset);
		1961	eio_page_align (&addr, &len);
		1962	#if _POSIX_MEMLOCK_RANGE
		1963	RETVAL = munlock (addr, len);
		1964	#else
		1965	RETVAL = EIO_ENOSYS ();
		1966	#endif
		1967	}
		1968	OUTPUT:
		1969	RETVAL
		1970
		1971	int
		1972	munlockall ()
		1973	CODE:
		1974	#if _POSIX_MEMLOCK
		1975	munlockall ();
		1976	#else
		1977	RETVAL = EIO_ENOSYS ();
		1978	#endif
		1979	OUTPUT:
		1980	RETVAL
		1981
		1982	int
		1983	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1984	CODE:
		1985	{
		1986	#if HAVE_LINUX_SPLICE
		1987	loff_t off_in_, off_out_;
		1988	RETVAL = splice (
		1989	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1990	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1991	length, flags
		1992	);
		1993	#else
		1994	RETVAL = EIO_ENOSYS ();
		1995	#endif
		1996	}
		1997	OUTPUT:
		1998	RETVAL
		1999
		2000	int
		2001	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2002	CODE:
		2003	#if HAVE_LINUX_SPLICE
		2004	RETVAL = tee (rfh, wfh, length, flags);
		2005	#else
		2006	RETVAL = EIO_ENOSYS ();
		2007	#endif
		2008	OUTPUT:
		2009	RETVAL
		2010
		2011	int
		2012	pipesize (aio_rfd rfh, int new_size = -1)
		2013	PROTOTYPE: $;$
		2014	CODE:
		2015	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2016	if (new_size >= 0)
		2017	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2018	else
		2019	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2020	#else
		2021	errno = ENOSYS;
		2022	RETVAL = -1;
		2023	#endif
		2024	OUTPUT:
		2025	RETVAL
		2026
		2027	void
		2028	pipe2 (int flags = 0)
		2029	PROTOTYPE: ;$
		2030	PPCODE:
		2031	{
		2032	int fd[2];
		2033	int res;
		2034
		2035	if (flags)
		2036	#if HAVE_PIPE2
		2037	res = pipe2 (fd, flags);
		2038	#else
		2039	res = (errno = ENOSYS, -1);
		2040	#endif
		2041	else
		2042	res = pipe (fd);
		2043
		2044	if (!res)
		2045	{
		2046	EXTEND (SP, 2);
		2047	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2048	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2049	}
		2050	}
1024		2051
1025	void _on_next_submit (SV *cb)	2052	void _on_next_submit (SV *cb)
1026	CODE:	2053	CODE:
1027	SvREFCNT_dec (on_next_submit);	2054	SvREFCNT_dec (on_next_submit);
1028	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2055	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1029		2056
1030	PROTOTYPES: DISABLE	2057	PROTOTYPES: DISABLE
1031		2058
		2059	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2060
		2061	BOOT:
		2062	{
		2063	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2064	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2065	}
		2066
		2067	void
		2068	DESTROY (SV *self)
		2069	CODE:
		2070	{
		2071	aio_wd wd = SvAIO_WD (self);
		2072	#if HAVE_AT
		2073	{
		2074	SV *callback = &PL_sv_undef;
		2075	dREQ; /* clobbers next_pri :/ */
		2076	next_pri = req->pri; /* restore next_pri */
		2077	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2078	req->type = EIO_WD_CLOSE;
		2079	req->wd = wd;
		2080	REQ_SEND;
		2081	}
		2082	#else
		2083	eio_wd_close_sync (wd);
		2084	#endif
		2085	}
		2086
1032	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2087	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1033		2088
1034	void	2089	void
1035	cancel (aio_req_ornot req)	2090	cancel (aio_req_ornot req)
1036	CODE:	2091	CODE:
1037	eio_cancel (req);	2092	eio_cancel (req);
1038		2093
1039	void	2094	void
1040	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2095	cb (aio_req_ornot req, SV *callback = NO_INIT)
1041	CODE:	2096	PPCODE:
		2097	{
		2098	if (GIMME_V != G_VOID)
		2099	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		2100
		2101	if (items > 1)
		2102	{
		2103	SV *cb_cv = get_cb (callback);
		2104
1042	SvREFCNT_dec (req->callback);	2105	SvREFCNT_dec (req->callback);
1043	req->callback = newSVsv (callback);	2106	req->callback = SvREFCNT_inc (cb_cv);
		2107	}
		2108	}
1044		2109
1045	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	2110	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1046		2111
1047	void	2112	void
1048	add (aio_req grp, ...)	2113	add (aio_req grp, ...)
…		…
1080	AV *av;	2145	AV *av;
1081		2146
1082	grp->errorno = errno;	2147	grp->errorno = errno;
1083		2148
1084	av = newAV ();	2149	av = newAV ();
		2150	av_extend (av, items - 1);
1085		2151
1086	for (i = 1; i < items; ++i )	2152	for (i = 1; i < items; ++i )
1087	av_push (av, newSVsv (ST (i)));	2153	av_push (av, newSVsv (ST (i)));
1088		2154
1089	SvREFCNT_dec (grp->sv1);	2155	SvREFCNT_dec (grp->sv1);
…		…
1099	limit (aio_req grp, int limit)	2165	limit (aio_req grp, int limit)
1100	CODE:	2166	CODE:
1101	eio_grp_limit (grp, limit);	2167	eio_grp_limit (grp, limit);
1102		2168
1103	void	2169	void
1104	feed (aio_req grp, SV *callback=&PL_sv_undef)	2170	feed (aio_req grp, SV *callback = &PL_sv_undef)
1105	CODE:	2171	CODE:
1106	{	2172	{
1107	SvREFCNT_dec (grp->sv2);	2173	SvREFCNT_dec (grp->sv2);
1108	grp->sv2 = newSVsv (callback);	2174	grp->sv2 = newSVsv (callback);
		2175	grp->feed = aio_grp_feed;
1109		2176
1110	if (grp->int2 <= 0)	2177	if (grp->int2 <= 0)
1111	grp->int2 = 2;	2178	grp->int2 = 2;
1112		2179
1113	eio_grp_limit (grp, grp->int2);	2180	eio_grp_limit (grp, grp->int2);

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