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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.126 by root, Thu Sep 25 07:56:07 2008 UTC vs.
Revision 1.248 by root, Fri Jun 23 22:33:06 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
18	/* perl namespace pollution */	38	/* perl namespace pollution */
19	#undef VERSION	39	#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		40
70	/* perl stupidly overrides readdir and maybe others */	41	/* perl stupidly overrides readdir and maybe others */
71	/* with thread-unsafe versions, imagine that :( */	42	/* with thread-unsafe versions, imagine that :( */
72	#undef readdir	43	#undef readdir
73	#undef opendir	44	#undef opendir
74	#undef closedir	45	#undef closedir
75		46
		47	#ifdef _WIN32
		48
		49	// perl overrides all those nice libc functions
		50
		51	#undef malloc
		52	#undef free
		53	#undef open
		54	#undef read
		55	#undef write
		56	#undef send
		57	#undef recv
		58	#undef stat
		59	#undef lstat
		60	#undef fstat
		61	#undef truncate
		62	#undef ftruncate
		63	#undef open
		64	#undef link
		65	#undef close
		66	#undef unlink
		67	#undef mkdir
		68	#undef rmdir
		69	#undef rename
		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
		80
		81	#define EIO_STRUCT_STAT struct _stati64
76	#define EIO_STRUCT_STAT Stat_t	82	#define EIO_STRUCT_STATI64
77		83
78	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8
80	# define SvVAL64 SvIV
81	#else	84	#else
82	# define SvVAL64 SvNV
83	#endif
84		85
85	static HV *stash;	86	#include <sys/time.h>
		87	#include <sys/select.h>
		88	#include <unistd.h>
		89	#include <utime.h>
		90	#include <signal.h>
		91
		92	#define EIO_STRUCT_STAT Stat_t
		93
		94	#endif
		95
		96	/*****************************************************************************/
		97
		98	#if __GNUC__ >= 3
		99	# define expect(expr,value) __builtin_expect ((expr),(value))
		100	#else
		101	# define expect(expr,value) (expr)
		102	#endif
		103
		104	#define expect_false(expr) expect ((expr) != 0, 0)
		105	#define expect_true(expr) expect ((expr) != 0, 1)
		106
		107	/*****************************************************************************/
		108
86	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 */
87		112
88	#define AIO_REQ_KLASS "IO::AIO::REQ"	113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
89	#define AIO_GRP_KLASS "IO::AIO::GRP"
90		114
91	#define EIO_REQ_MEMBERS \	115	#define EIO_REQ_MEMBERS \
92	SV *callback; \	116	SV *callback; \
93	SV *sv1, *sv2; \	117	SV *sv1, *sv2; \
		118	SV *sv3, *sv4; \
94	STRLEN stroffset; \	119	STRLEN stroffset; \
95	SV *self;	120	SV *self;
96		121
97	#define EIO_NO_WRAPPERS 1	122	#define EIO_NO_WRAPPERS 1
98		123
		124	#include "libeio/config.h"
99	#include "libeio/eio.h"	125	#include "libeio/eio.h"
100		126
101	static int req_invoke (eio_req *req);	127	static int req_invoke (eio_req *req);
102	#define EIO_FINISH(req) req_invoke (req)	128	#define EIO_FINISH(req) req_invoke (req)
103	static void aio_grp_feed (eio_req *grp);
104	#define EIO_FEED(req) aio_grp_feed (req)
105	static void req_destroy (eio_req *grp);	129	static void req_destroy (eio_req *grp);
106	#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	/*****************************************************************************/
107		267
108	enum {	268	enum {
109	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	269	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
110	};	270	};
111		271
112	#include "libeio/eio.c"
113
114	typedef eio_req *aio_req;	272	typedef eio_req *aio_req;
115	typedef eio_req *aio_req_ornot;	273	typedef eio_req *aio_req_ornot;
		274	typedef eio_wd aio_wd;
116		275
117	static SV *on_next_submit;	276	static SV *on_next_submit;
118	static int next_pri = EIO_PRI_DEFAULT;	277	static int next_pri = EIO_PRI_DEFAULT;
119	static int max_outstanding;	278	static int max_outstanding;
120		279
121	static int respipe_osf [2], respipe [2] = { -1, -1 };	280	static s_epipe respipe;
122		281
123	static void req_destroy (aio_req req);	282	static void req_destroy (aio_req req);
124	static void req_cancel (aio_req req);	283	static void req_cancel (aio_req req);
125		284
126	static void want_poll (void)	285	static void
		286	want_poll (void)
127	{	287	{
128	/* write a dummy byte to the pipe so fh becomes ready */	288	/* write a dummy byte to the pipe so fh becomes ready */
129	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	289	s_epipe_signal (&respipe);
130	}	290	}
131		291
132	static void done_poll (void)	292	static void
		293	done_poll (void)
133	{	294	{
134	/* read any signals sent by the worker threads */	295	/* read any signals sent by the worker threads */
135	char buf [4];	296	s_epipe_drain (&respipe);
136	while (respipe_read (respipe [0], buf, 4) == 4)
137	;
138	}	297	}
139		298
140	/* must be called at most once */	299	/* must be called at most once */
141	static SV *req_sv (aio_req req, const char *klass)	300	static SV *
		301	req_sv (aio_req req, HV *stash)
142	{	302	{
143	if (!req->self)	303	if (!req->self)
144	{	304	{
145	req->self = (SV *)newHV ();	305	req->self = (SV *)newHV ();
146	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	306	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
147	}	307	}
148		308
149	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	309	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
150	}	310	}
151		311
152	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)
153	{	320	{
154	MAGIC *mg;	321	MAGIC *mg;
155		322
156	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")))
157	croak ("object of class " AIO_REQ_KLASS " expected");	328	croak ("object of class IO::AIO::REQ expected");
158		329
159	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	330	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
160		331
161	return mg ? (aio_req)mg->mg_ptr : 0;	332	return mg ? (aio_req)mg->mg_ptr : 0;
162	}	333	}
163		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
164	static void aio_grp_feed (aio_req grp)	372	aio_grp_feed (aio_req grp)
165	{	373	{
166	if (grp->sv2 && SvOK (grp->sv2))	374	if (grp->sv2 && SvOK (grp->sv2))
167	{	375	{
168	dSP;	376	dSP;
169		377
170	ENTER;	378	ENTER;
171	SAVETMPS;	379	SAVETMPS;
172	PUSHMARK (SP);	380	PUSHMARK (SP);
173	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	381	XPUSHs (req_sv (grp, aio_grp_stash));
174	PUTBACK;	382	PUTBACK;
175	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	383	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
176	SPAGAIN;	384	SPAGAIN;
177	FREETMPS;	385	FREETMPS;
178	LEAVE;	386	LEAVE;
179	}	387	}
180	}	388	}
181		389
		390	static void
182	static void req_submit (eio_req *req)	391	req_submit (eio_req *req)
183	{	392	{
184	eio_submit (req);	393	eio_submit (req);
185		394
186	if (on_next_submit)	395	if (expect_false (on_next_submit))
187	{	396	{
188	dSP;	397	dSP;
189	SV *cb = sv_2mortal (on_next_submit);	398	SV *cb = sv_2mortal (on_next_submit);
190		399
191	on_next_submit = 0;	400	on_next_submit = 0;
…		…
194	PUTBACK;	403	PUTBACK;
195	call_sv (cb, G_DISCARD | G_EVAL);	404	call_sv (cb, G_DISCARD | G_EVAL);
196	}	405	}
197	}	406	}
198		407
		408	static int
199	static int req_invoke (eio_req *req)	409	req_invoke (eio_req *req)
200	{	410	{
201	dSP;
202
203	if (req->flags & FLAG_SV2_RO_OFF)	411	if (req->flags & FLAG_SV2_RO_OFF)
204	SvREADONLY_off (req->sv2);	412	SvREADONLY_off (req->sv2);
205		413
206	if (!EIO_CANCELLED (req) && SvOK (req->callback))	414	if (!EIO_CANCELLED (req) && req->callback)
207	{	415	{
		416	dSP;
		417	static SV *sv_result_cache; /* caches the result integer SV */
		418	SV *sv_result;
		419
208	ENTER;	420	ENTER;
209	SAVETMPS;	421	SAVETMPS;
210	PUSHMARK (SP);	422	PUSHMARK (SP);
211	EXTEND (SP, 1);	423	EXTEND (SP, 1);
212		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
213	switch (req->type)	438	switch (req->type)
214	{	439	{
		440	case EIO_WD_OPEN:
		441	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		442	break;
		443
215	case EIO_READDIR:	444	case EIO_READDIR:
216	{	445	{
217	SV *rv = &PL_sv_undef;	446	SV *rv = &PL_sv_undef;
218		447
219	if (req->result >= 0)	448	if (req->result >= 0)
220	{	449	{
221	int i;	450	int i;
222	char *buf = req->ptr2;	451	char *names = (char *)req->ptr2;
		452	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
223	AV *av = newAV ();	453	AV *av = newAV ();
224		454
225	av_extend (av, req->result - 1);	455	av_extend (av, req->result - 1);
226		456
227	for (i = 0; i < req->result; ++i)	457	for (i = 0; i < req->result; ++i)
228	{	458	{
229	SV *sv = newSVpv (buf, 0);	459	if (req->int1 & EIO_READDIR_DENTS)
		460	{
		461	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
230		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
231	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);
232	buf += SvCUR (sv) + 1;	491	names += SvCUR (name) + 1;
		492	}
233	}	493	}
234		494
235	rv = sv_2mortal (newRV_noinc ((SV *)av));	495	rv = sv_2mortal (newRV_noinc ((SV *)av));
236	}	496	}
237		497
238	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))));
239	}	502	}
240	break;	503	break;
241		504
242	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:
243	{	511	{
244	/* convert fd to fh */
245	SV *fh = &PL_sv_undef;	512	SV *rv = &PL_sv_undef;
246		513
		514	#ifndef _WIN32
247	if (req->result >= 0)	515	if (req->result >= 0)
248	{	516	{
		517	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
249	GV *gv = (GV *)sv_newmortal ();	518	HV *hv = newHV ();
250	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	519	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
251	char sym [64];	520	* chooses to make it a struct.
252	int symlen;
253		521	*/
254	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	522	unsigned long fsid = 0;
255	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));
256		524
257	symlen = snprintf (	525	rv = sv_2mortal (newRV_noinc ((SV *)hv));
258	sym,
259	sizeof (sym),
260	"%s&=%d",
261	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
262	req->result
263	);
264		526
265	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	527	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
266	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);
267	}	538	}
		539	#endif
268		540
269	PUSHs (fh);	541	PUSHs (rv);
270	}	542	}
		543
271	break;	544	break;
272		545
273	case EIO_GROUP:	546	case EIO_GROUP:
274	req->int1 = 2; /* mark group as finished */	547	req->int1 = 2; /* mark group as finished */
275		548
…		…
287	case EIO_NOP:	560	case EIO_NOP:
288	case EIO_BUSY:	561	case EIO_BUSY:
289	break;	562	break;
290		563
291	case EIO_READLINK:	564	case EIO_READLINK:
		565	case EIO_REALPATH:
292	if (req->result > 0)	566	if (req->result > 0)
293	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	567	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
294	break;	568	break;
295		569
296	case EIO_STAT:	570	case EIO_STAT:
297	case EIO_LSTAT:	571	case EIO_LSTAT:
298	case EIO_FSTAT:	572	case EIO_FSTAT:
299	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	573	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		574
300	PL_laststatval = req->result;	575	if (!(PL_laststatval = req->result))
		576	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
301	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	577	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
302	PUSHs (sv_2mortal (newSViv (req->result)));	578
		579	PUSHs (sv_result);
303	break;	580	break;
304		581
		582	case EIO_SEEK:
		583	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		584	break;
		585
305	case EIO_READ:	586	case EIO_READ:
		587	{
306	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));
307	*SvEND (req->sv2) = 0;	589	*SvEND (req->sv2) = 0;
308	PUSHs (sv_2mortal (newSViv (req->result)));	590	SvPOK_only (req->sv2);
		591	SvSETMAGIC (req->sv2);
		592	PUSHs (sv_result);
		593	}
309	break;	594	break;
310		595
311	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 */
312	if (req->result > 0)	637	if (req->result > 0)
313	req->result = 0;	638	SvIV_set (sv_result, 0);
314	/* FALLTHROUGH */	639	/* FALLTHROUGH */
315		640
316	default:	641	default:
317	PUSHs (sv_2mortal (newSViv (req->result)));	642	PUSHs (sv_result);
318	break;	643	break;
319	}	644	}
320		645
321	errno = req->errorno;	646	errno = req->errorno;
322		647
323	PUTBACK;	648	PUTBACK;
324	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	649	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
325	SPAGAIN;	650	SPAGAIN;
326		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
327	FREETMPS;	657	FREETMPS;
328	LEAVE;	658	LEAVE;
329		659
330	PUTBACK;	660	PUTBACK;
331	}	661	}
332		662
333	return !!SvTRUE (ERRSV);	663	return !!SvTRUE (ERRSV);
334	}	664	}
335		665
		666	static void
336	static void req_destroy (aio_req req)	667	req_destroy (aio_req req)
337	{	668	{
338	if (req->self)	669	if (req->self)
339	{	670	{
340	sv_unmagic (req->self, PERL_MAGIC_ext);	671	sv_unmagic (req->self, PERL_MAGIC_ext);
341	SvREFCNT_dec (req->self);	672	SvREFCNT_dec (req->self);
342	}	673	}
343		674
344	SvREFCNT_dec (req->sv1);	675	SvREFCNT_dec (req->sv1);
345	SvREFCNT_dec (req->sv2);	676	SvREFCNT_dec (req->sv2);
		677	SvREFCNT_dec (req->sv3);
		678	SvREFCNT_dec (req->sv4);
346	SvREFCNT_dec (req->callback);	679	SvREFCNT_dec (req->callback);
347		680
348	Safefree (req);	681	free (req);
349	}	682	}
350		683
		684	static void
351	static void req_cancel_subs (aio_req grp)	685	req_cancel_subs (aio_req grp)
352	{	686	{
353	aio_req sub;
354
355	if (grp->type != EIO_GROUP)	687	if (grp->type != EIO_GROUP)
356	return;	688	return;
357		689
358	SvREFCNT_dec (grp->sv2);	690	SvREFCNT_dec (grp->sv2);
359	grp->sv2 = 0;	691	grp->sv2 = 0;
360		692
361	eio_grp_cancel (grp);	693	eio_grp_cancel (grp);
362	}	694	}
363		695
364	#ifdef USE_SOCKETS_AS_HANDLES	696	static void ecb_cold
365	# define TO_SOCKET(x) (win32_get_osfhandle (x))	697	create_respipe (void)
366	#else	698	{
367	# define TO_SOCKET(x) (x)	699	if (s_epipe_renew (&respipe))
368	#endif	700	croak ("IO::AIO: unable to initialize result pipe");
		701	}
369		702
370	static void	703	static void
371	create_respipe (void)	704	poll_wait (void)
372	{	705	{
373	int old_readfd = respipe [0];
374
375	if (respipe [1] >= 0)
376	respipe_close (TO_SOCKET (respipe [1]));
377
378	#ifdef _WIN32
379	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
380	#else
381	if (pipe (respipe))
382	#endif
383	croak ("unable to initialize result pipe");
384
385	if (old_readfd >= 0)
386	{
387	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
388	croak ("unable to initialize result pipe(2)");
389
390	respipe_close (respipe [0]);
391	respipe [0] = old_readfd;
392	}
393
394	#ifdef _WIN32
395	int arg = 1;
396	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
397	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
398	#else
399	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
400	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
401	#endif
402	croak ("unable to initialize result pipe(3)");
403
404	respipe_osf [0] = TO_SOCKET (respipe [0]);
405	respipe_osf [1] = TO_SOCKET (respipe [1]);
406	}
407
408	static void poll_wait (void)
409	{
410	fd_set rfd;
411
412	while (eio_nreqs ())	706	while (eio_nreqs ())
413	{	707	{
414	int size;	708	int size;
415		709
416	X_LOCK (reslock);	710	X_LOCK (EIO_POOL->reslock);
417	size = res_queue.size;	711	size = EIO_POOL->res_queue.size;
418	X_UNLOCK (reslock);	712	X_UNLOCK (EIO_POOL->reslock);
419		713
420	if (size)	714	if (size)
421	return;	715	return;
422		716
423	etp_maybe_start_thread ();	717	etp_maybe_start_thread (EIO_POOL);
424		718
425	FD_ZERO (&rfd);	719	s_epipe_wait (&respipe);
426	FD_SET (respipe [0], &rfd);
427
428	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
429	}	720	}
430	}	721	}
431		722
432	static int poll_cb (void)	723	static int
		724	poll_cb (void)
433	{	725	{
434	for (;;)	726	for (;;)
435	{	727	{
436	int res = eio_poll ();	728	int res = eio_poll ();
437		729
…		…
443		735
444	poll_wait ();	736	poll_wait ();
445	}	737	}
446	}	738	}
447		739
448	static void atfork_child (void)	740	static void ecb_cold
		741	reinit (void)
449	{	742	{
450	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;
451	}	814	}
452		815
453	#define dREQ \	816	#define dREQ \
454	aio_req req; \	817	aio_req req = dreq (callback); \
455	int req_pri = next_pri; \
456	next_pri = EIO_PRI_DEFAULT; \
457	\
458	if (SvOK (callback) && !SvROK (callback)) \
459	croak ("callback must be undef or of reference type"); \
460	\
461	Newz (0, req, 1, eio_req); \
462	if (!req) \
463	croak ("out of memory during eio_req allocation"); \
464	\
465	req->callback = newSVsv (callback); \
466	req->pri = req_pri
467		818
468	#define REQ_SEND \	819	#define REQ_SEND \
469	PUTBACK; \	820	PUTBACK; \
470	req_submit (req); \	821	req_submit (req); \
471	SPAGAIN; \	822	SPAGAIN; \
472	\	823	\
473	if (GIMME_V != G_VOID) \	824	if (GIMME_V != G_VOID) \
474	XPUSHs (req_sv (req, AIO_REQ_KLASS));	825	XPUSHs (req_sv (req, aio_req_stash));
475		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
476	MODULE = IO::AIO PACKAGE = IO::AIO	893	MODULE = IO::AIO PACKAGE = IO::AIO
477		894
478	PROTOTYPES: ENABLE	895	PROTOTYPES: ENABLE
479		896
480	BOOT:	897	BOOT:
481	{	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	const_eio (FALLOC_FL_INSET_RANGE)
		1106	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1107
		1108	const_eio (RENAME_NOREPLACE)
		1109	const_eio (RENAME_EXCHANGE)
		1110	const_eio (RENAME_WHITEOUT)
		1111
		1112	const_eio (READDIR_DENTS)
		1113	const_eio (READDIR_DIRS_FIRST)
		1114	const_eio (READDIR_STAT_ORDER)
		1115	const_eio (READDIR_FOUND_UNKNOWN)
		1116
		1117	const_eio (DT_UNKNOWN)
		1118	const_eio (DT_FIFO)
		1119	const_eio (DT_CHR)
		1120	const_eio (DT_DIR)
		1121	const_eio (DT_BLK)
		1122	const_eio (DT_REG)
		1123	const_eio (DT_LNK)
		1124	const_eio (DT_SOCK)
		1125	const_eio (DT_WHT)
		1126	};
		1127
482	stash = gv_stashpv ("IO::AIO", 1);	1128	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1129	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1130	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1131	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
483		1132
484	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1133	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
485	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1134	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
486	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
487	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
488	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
489	#ifndef _WIN32
490	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
491	#endif
492		1135
493	create_respipe ();	1136	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
494		1137
495	if (eio_init (want_poll, done_poll) < 0)	1138	reinit ();
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	}	1139	}
501		1140
502	void	1141	void
		1142	reinit ()
		1143	PROTOTYPE:
		1144
		1145	void
503	max_poll_reqs (int nreqs)	1146	max_poll_reqs (unsigned int nreqs)
504	PROTOTYPE: $	1147	PROTOTYPE: $
505	CODE:	1148	CODE:
506	eio_set_max_poll_reqs (nreqs);	1149	eio_set_max_poll_reqs (nreqs);
507		1150
508	void	1151	void
…		…
510	PROTOTYPE: $	1153	PROTOTYPE: $
511	CODE:	1154	CODE:
512	eio_set_max_poll_time (nseconds);	1155	eio_set_max_poll_time (nseconds);
513		1156
514	void	1157	void
515	min_parallel (int nthreads)	1158	min_parallel (unsigned int nthreads)
516	PROTOTYPE: $	1159	PROTOTYPE: $
517	CODE:	1160	CODE:
518	eio_set_min_parallel (nthreads);	1161	eio_set_min_parallel (nthreads);
519		1162
520	void	1163	void
521	max_parallel (int nthreads)	1164	max_parallel (unsigned int nthreads)
522	PROTOTYPE: $	1165	PROTOTYPE: $
523	CODE:	1166	CODE:
524	eio_set_max_parallel (nthreads);	1167	eio_set_max_parallel (nthreads);
525		1168
526	void	1169	void
527	max_idle (int nthreads)	1170	max_idle (unsigned int nthreads)
528	PROTOTYPE: $	1171	PROTOTYPE: $
529	CODE:	1172	CODE:
530	eio_set_max_idle (nthreads);	1173	eio_set_max_idle (nthreads);
531		1174
532	void	1175	void
		1176	idle_timeout (unsigned int seconds)
		1177	PROTOTYPE: $
		1178	CODE:
		1179	eio_set_idle_timeout (seconds);
		1180
		1181	void
533	max_outstanding (int maxreqs)	1182	max_outstanding (unsigned int maxreqs)
534	PROTOTYPE: $	1183	PROTOTYPE: $
535	CODE:	1184	CODE:
536	max_outstanding = maxreqs;	1185	max_outstanding = maxreqs;
537		1186
538	void	1187	void
539	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1188	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
540	PROTOTYPE: $$$;$
541	PPCODE:	1189	PPCODE:
542	{	1190	{
543	dREQ;	1191	dREQ;
544		1192
		1193	req->type = EIO_WD_OPEN;
		1194	req_set_path1 (req, pathname);
		1195
		1196	REQ_SEND;
		1197	}
		1198
		1199	void
		1200	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1201	PPCODE:
		1202	{
		1203	dREQ;
		1204
545	req->type = EIO_OPEN;	1205	req->type = EIO_OPEN;
546	req->sv1 = newSVsv (pathname);	1206	req_set_path1 (req, pathname);
547	req->ptr1 = SvPVbyte_nolen (req->sv1);
548	req->int1 = flags;	1207	req->int1 = flags;
549	req->int2 = mode;	1208	req->int2 = mode;
550		1209
551	REQ_SEND;	1210	REQ_SEND;
552	}	1211	}
553		1212
554	void	1213	void
555	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1214	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
556	PROTOTYPE: $;$
557	ALIAS:	1215	ALIAS:
558	aio_fsync = EIO_FSYNC	1216	aio_fsync = EIO_FSYNC
559	aio_fdatasync = EIO_FDATASYNC	1217	aio_fdatasync = EIO_FDATASYNC
		1218	aio_syncfs = EIO_SYNCFS
560	PPCODE:	1219	PPCODE:
561	{	1220	{
		1221	int fd = s_fileno_croak (fh, 0);
562	dREQ;	1222	dREQ;
563		1223
564	req->type = ix;	1224	req->type = ix;
565	req->sv1 = newSVsv (fh);	1225	req->sv1 = newSVsv (fh);
566	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1226	req->int1 = fd;
567		1227
568	REQ_SEND (req);	1228	REQ_SEND;
569	}	1229	}
570		1230
571	void	1231	void
572	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1232	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
573	PROTOTYPE: $;$
574	PPCODE:	1233	PPCODE:
575	{	1234	{
576	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1235	int fd = s_fileno_croak (fh, 0);
577	dREQ;	1236	dREQ;
578		1237
579	if (close_pipe < 0)	1238	req->type = EIO_SYNC_FILE_RANGE;
		1239	req->sv1 = newSVsv (fh);
		1240	req->int1 = fd;
		1241	req->offs = offset;
		1242	req->size = nbytes;
		1243	req->int2 = flags;
		1244
		1245	REQ_SEND;
		1246	}
		1247
		1248	void
		1249	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
		1250	PPCODE:
		1251	{
		1252	int fd = s_fileno_croak (fh, 0);
		1253	dREQ;
		1254
		1255	req->type = EIO_FALLOCATE;
		1256	req->sv1 = newSVsv (fh);
		1257	req->int1 = fd;
		1258	req->int2 = mode;
		1259	req->offs = offset;
		1260	req->size = len;
		1261
		1262	REQ_SEND;
		1263	}
		1264
		1265	void
		1266	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1267	PPCODE:
		1268	{
		1269	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1270	int fd = s_fileno_croak (fh, 0);
		1271	dREQ;
		1272
		1273	if (expect_false (close_fd < 0))
580	{	1274	{
581	int pipefd [2];	1275	int pipefd [2];
582		1276
		1277	if (
		1278	#ifdef _WIN32
		1279	_pipe (pipefd, 1, _O_BINARY) < 0
		1280	#else
583	if (pipe (pipefd) < 0	1281	pipe (pipefd) < 0
584	|| close (pipefd [1]) < 0
585	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1282	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1283	#endif
		1284	|| close (pipefd [1]) < 0
		1285	)
586	abort (); /*D*/	1286	abort (); /*D*/
587		1287
588	close_pipe = pipefd [0];	1288	close_fd = pipefd [0];
589	}	1289	}
590		1290
591	req->type = EIO_DUP2;	1291	req->type = EIO_DUP2;
592	req->int1 = close_pipe;	1292	req->int1 = close_fd;
593	req->sv2 = newSVsv (fh);	1293	req->sv2 = newSVsv (fh);
594	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1294	req->int2 = fd;
595		1295
596	REQ_SEND (req);	1296	REQ_SEND;
597	}	1297	}
598		1298
599	void	1299	void
		1300	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1301	PPCODE:
		1302	{
		1303	int fd = s_fileno_croak (fh, 0);
		1304	dREQ;
		1305
		1306	req->type = EIO_SEEK;
		1307	req->sv1 = newSVsv (fh);
		1308	req->int1 = fd;
		1309	req->offs = SvVAL64 (offset);
		1310	req->int2 = whence;
		1311
		1312	REQ_SEND;
		1313	}
		1314
		1315	void
600	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1316	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
601	ALIAS:	1317	ALIAS:
602	aio_read = EIO_READ	1318	aio_read = EIO_READ
603	aio_write = EIO_WRITE	1319	aio_write = EIO_WRITE
604	PROTOTYPE: $$$$$;$
605	PPCODE:	1320	PPCODE:
606	{	1321	{
607	STRLEN svlen;	1322	STRLEN svlen;
		1323	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
608	char *svptr = SvPVbyte (data, svlen);	1324	char *svptr = SvPVbyte (data, svlen);
609	UV len = SvUV (length);	1325	UV len = SvUV (length);
610
611	SvUPGRADE (data, SVt_PV);
612	SvPOK_on (data);
613		1326
614	if (dataoffset < 0)	1327	if (dataoffset < 0)
615	dataoffset += svlen;	1328	dataoffset += svlen;
616		1329
617	if (dataoffset < 0 || dataoffset > svlen)	1330	if (dataoffset < 0 || dataoffset > svlen)
…		…
623	if (!SvOK (length) || len + dataoffset > svlen)	1336	if (!SvOK (length) || len + dataoffset > svlen)
624	len = svlen - dataoffset;	1337	len = svlen - dataoffset;
625	}	1338	}
626	else	1339	else
627	{	1340	{
628	/* read: grow scalar as necessary */	1341	/* read: check type and grow scalar as necessary */
		1342	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
629	svptr = SvGROW (data, len + dataoffset + 1);	1343	svptr = sv_grow (data, len + dataoffset + 1);
		1344	else if (SvCUR (data) < len + dataoffset)
		1345	croak ("length + dataoffset outside of scalar, and cannot grow");
630	}	1346	}
631
632	if (len < 0)
633	croak ("length must not be negative");
634		1347
635	{	1348	{
636	dREQ;	1349	dREQ;
637		1350
638	req->type = ix;	1351	req->type = ix;
639	req->sv1 = newSVsv (fh);	1352	req->sv1 = newSVsv (fh);
640	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1353	req->int1 = fd;
641	: IoOFP (sv_2io (fh)));
642	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1354	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
643	req->size = len;	1355	req->size = len;
644	req->sv2 = SvREFCNT_inc (data);	1356	req->sv2 = SvREFCNT_inc (data);
645	req->ptr2 = (char *)svptr + dataoffset;	1357	req->ptr2 = (char *)svptr + dataoffset;
646	req->stroffset = dataoffset;	1358	req->stroffset = dataoffset;
…		…
654	REQ_SEND;	1366	REQ_SEND;
655	}	1367	}
656	}	1368	}
657		1369
658	void	1370	void
659	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1371	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
660	PROTOTYPE: $$;$	1372	ALIAS:
		1373	aio_ioctl = EIO_IOCTL
		1374	aio_fcntl = EIO_FCNTL
661	PPCODE:	1375	PPCODE:
662	{	1376	{
663	SV *data;	1377	int fd = s_fileno_croak (fh, 0);
		1378	char *svptr;
		1379
		1380	if (SvPOK (arg) || !SvNIOK (arg))
		1381	{
		1382	STRLEN svlen;
		1383	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1384	#ifdef IOCPARM_LEN
		1385	STRLEN need = IOCPARM_LEN (request);
		1386	#else
		1387	STRLEN need = 256;
		1388	#endif
		1389
		1390	if (svlen < need)
		1391	svptr = SvGROW (arg, need);
		1392	}
		1393	else
		1394	svptr = (char *)SvIV (arg);
		1395
		1396	{
		1397	dREQ;
		1398
		1399	req->type = ix;
		1400	req->sv1 = newSVsv (fh);
		1401	req->int1 = fd;
		1402	req->int2 = (long)request;
		1403	req->sv2 = SvREFCNT_inc (arg);
		1404	req->ptr2 = svptr;
		1405
		1406	REQ_SEND;
		1407	}
		1408	}
		1409
		1410	void
		1411	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1412	ALIAS:
		1413	aio_readlink = EIO_READLINK
		1414	aio_realpath = EIO_REALPATH
		1415	PPCODE:
		1416	{
664	dREQ;	1417	dREQ;
665		1418
666	req->type = EIO_READLINK;	1419	req->type = ix;
667	req->sv1 = newSVsv (path);	1420	req_set_path1 (req, pathname);
668	req->ptr1 = SvPVbyte_nolen (req->sv1);
669		1421
670	REQ_SEND;	1422	REQ_SEND;
671	}	1423	}
672		1424
673	void	1425	void
674	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1426	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
675	PROTOTYPE: $$$$;$
676	PPCODE:	1427	PPCODE:
677	{	1428	{
		1429	int ifd = s_fileno_croak (in_fh , 0);
		1430	int ofd = s_fileno_croak (out_fh, 1);
678	dREQ;	1431	dREQ;
679		1432
680	req->type = EIO_SENDFILE;	1433	req->type = EIO_SENDFILE;
681	req->sv1 = newSVsv (out_fh);	1434	req->sv1 = newSVsv (out_fh);
682	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1435	req->int1 = ofd;
683	req->sv2 = newSVsv (in_fh);	1436	req->sv2 = newSVsv (in_fh);
684	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1437	req->int2 = ifd;
685	req->offs = SvVAL64 (in_offset);	1438	req->offs = in_offset;
686	req->size = length;	1439	req->size = length;
687		1440
688	REQ_SEND;	1441	REQ_SEND;
689	}	1442	}
690		1443
691	void	1444	void
692	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1445	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
693	PROTOTYPE: $$$;$
694	PPCODE:	1446	PPCODE:
695	{	1447	{
		1448	int fd = s_fileno_croak (fh, 0);
696	dREQ;	1449	dREQ;
697		1450
698	req->type = EIO_READAHEAD;	1451	req->type = EIO_READAHEAD;
699	req->sv1 = newSVsv (fh);	1452	req->sv1 = newSVsv (fh);
700	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1453	req->int1 = fd;
701	req->offs = SvVAL64 (offset);	1454	req->offs = offset;
702	req->size = length;	1455	req->size = length;
703		1456
704	REQ_SEND;	1457	REQ_SEND;
705	}	1458	}
706		1459
707	void	1460	void
708	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1461	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
709	ALIAS:	1462	ALIAS:
710	aio_stat = EIO_STAT	1463	aio_stat = EIO_STAT
711	aio_lstat = EIO_LSTAT	1464	aio_lstat = EIO_LSTAT
		1465	aio_statvfs = EIO_STATVFS
712	PPCODE:	1466	PPCODE:
713	{	1467	{
714	dREQ;	1468	dREQ;
715		1469
716	req->sv1 = newSVsv (fh_or_path);	1470	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
717
718	if (SvPOK (req->sv1))
719	{
720	req->type = ix;
721	req->ptr1 = SvPVbyte_nolen (req->sv1);
722	}
723	else
724	{
725	req->type = EIO_FSTAT;
726	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
727	}
728		1471
729	REQ_SEND;	1472	REQ_SEND;
730	}	1473	}
731		1474
		1475	UV
		1476	major (UV dev)
		1477	ALIAS:
		1478	minor = 1
		1479	CODE:
		1480	RETVAL = ix ? minor (dev) : major (dev);
		1481	OUTPUT:
		1482	RETVAL
		1483
		1484	UV
		1485	makedev (UV maj, UV min)
		1486	CODE:
		1487	RETVAL = makedev (maj, min);
		1488	OUTPUT:
		1489	RETVAL
		1490
732	void	1491	void
733	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1492	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
734	PPCODE:	1493	PPCODE:
735	{	1494	{
736	dREQ;	1495	dREQ;
737		1496
738	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1497	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
739	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1498	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
740	req->sv1 = newSVsv (fh_or_path);	1499	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
741
742	if (SvPOK (req->sv1))
743	{
744	req->type = EIO_UTIME;
745	req->ptr1 = SvPVbyte_nolen (req->sv1);
746	}
747	else
748	{
749	req->type = EIO_FUTIME;
750	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
751	}
752		1500
753	REQ_SEND;	1501	REQ_SEND;
754	}	1502	}
755		1503
756	void	1504	void
757	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1505	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
758	PPCODE:	1506	PPCODE:
759	{	1507	{
760	dREQ;	1508	dREQ;
761		1509
762	req->sv1 = newSVsv (fh_or_path);
763	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1510	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
764		1511	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
765	if (SvPOK (req->sv1))
766	{
767	req->type = EIO_TRUNCATE;
768	req->ptr1 = SvPVbyte_nolen (req->sv1);
769	}
770	else
771	{
772	req->type = EIO_FTRUNCATE;
773	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
774	}
775		1512
776	REQ_SEND;	1513	REQ_SEND;
777	}	1514	}
778		1515
779	void	1516	void
780	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1517	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
781	ALIAS:
782	aio_chmod = EIO_CHMOD
783	aio_mkdir = EIO_MKDIR
784	PPCODE:	1518	PPCODE:
785	{	1519	{
786	dREQ;	1520	dREQ;
787		1521
788	req->int2 = mode;	1522	req->int2 = mode;
789	req->sv1 = newSVsv (fh_or_path);	1523	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
790
791	if (SvPOK (req->sv1))
792	{
793	req->type = ix;
794	req->ptr1 = SvPVbyte_nolen (req->sv1);
795	}
796	else
797	{
798	req->type = EIO_FCHMOD;
799	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
800	}
801		1524
802	REQ_SEND;	1525	REQ_SEND;
803	}	1526	}
804		1527
805	void	1528	void
806	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1529	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
807	PPCODE:	1530	PPCODE:
808	{	1531	{
809	dREQ;	1532	dREQ;
810		1533
811	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1534	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
812	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1535	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
813	req->sv1 = newSVsv (fh_or_path);	1536	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
814
815	if (SvPOK (req->sv1))
816	{
817	req->type = EIO_CHOWN;
818	req->ptr1 = SvPVbyte_nolen (req->sv1);
819	}
820	else
821	{
822	req->type = EIO_FCHOWN;
823	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
824	}
825		1537
826	REQ_SEND;	1538	REQ_SEND;
827	}	1539	}
828		1540
829	void	1541	void
		1542	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
		1543	PPCODE:
		1544	{
		1545	dREQ;
		1546
		1547	req->type = EIO_READDIR;
		1548	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1549
		1550	if (flags & EIO_READDIR_DENTS)
		1551	req->int1 |= EIO_READDIR_CUSTOM2;
		1552
		1553	req_set_path1 (req, pathname);
		1554
		1555	REQ_SEND;
		1556	}
		1557
		1558	void
		1559	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1560	PPCODE:
		1561	{
		1562	dREQ;
		1563
		1564	req->type = EIO_MKDIR;
		1565	req->int2 = mode;
		1566	req_set_path1 (req, pathname);
		1567
		1568	REQ_SEND;
		1569	}
		1570
		1571	void
830	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1572	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
831	ALIAS:	1573	ALIAS:
832	aio_unlink = EIO_UNLINK	1574	aio_unlink = EIO_UNLINK
833	aio_rmdir = EIO_RMDIR	1575	aio_rmdir = EIO_RMDIR
834	aio_readdir = EIO_READDIR	1576	aio_readdir = EIO_READDIR
835	PPCODE:	1577	PPCODE:
836	{	1578	{
837	dREQ;	1579	dREQ;
838		1580
839	req->type = ix;	1581	req->type = ix;
840	req->sv1 = newSVsv (pathname);	1582	req_set_path1 (req, pathname);
841	req->ptr1 = SvPVbyte_nolen (req->sv1);
842		1583
843	REQ_SEND;	1584	REQ_SEND;
844	}	1585	}
845		1586
846	void	1587	void
847	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1588	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
848	ALIAS:	1589	ALIAS:
849	aio_link = EIO_LINK	1590	aio_link = EIO_LINK
850	aio_symlink = EIO_SYMLINK	1591	aio_symlink = EIO_SYMLINK
851	aio_rename = EIO_RENAME	1592	aio_rename = EIO_RENAME
852	PPCODE:	1593	PPCODE:
853	{	1594	{
		1595	eio_wd wd2 = 0;
854	dREQ;	1596	dREQ;
855		1597
856	req->type = ix;	1598	req->type = ix;
857	req->sv1 = newSVsv (oldpath);	1599	req_set_path1 (req, oldpath);
858	req->ptr1 = SvPVbyte_nolen (req->sv1);	1600	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
859	req->sv2 = newSVsv (newpath);	1601	req->int3 = (long)wd2;
860	req->ptr2 = SvPVbyte_nolen (req->sv2);
861		1602
862	REQ_SEND;	1603	REQ_SEND;
863	}	1604	}
864		1605
865	void	1606	void
		1607	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1608	PPCODE:
		1609	{
		1610	eio_wd wd2 = 0;
		1611	dREQ;
		1612
		1613	req->type = EIO_RENAME;
		1614	req_set_path1 (req, oldpath);
		1615	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1616	req->int2 = flags;
		1617	req->int3 = (long)wd2;
		1618
		1619	REQ_SEND;
		1620	}
		1621
		1622	void
866	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1623	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
867	PPCODE:	1624	PPCODE:
868	{	1625	{
869	dREQ;	1626	dREQ;
870		1627
871	req->type = EIO_MKNOD;	1628	req->type = EIO_MKNOD;
872	req->sv1 = newSVsv (pathname);
873	req->ptr1 = SvPVbyte_nolen (req->sv1);
874	req->int2 = (mode_t)mode;	1629	req->int2 = (mode_t)mode;
875	req->offs = dev;	1630	req->offs = dev;
		1631	req_set_path1 (req, pathname);
876		1632
877	REQ_SEND;	1633	REQ_SEND;
878	}	1634	}
879		1635
880	void	1636	void
		1637	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
		1638	ALIAS:
		1639	aio_mtouch = EIO_MTOUCH
		1640	aio_msync = EIO_MSYNC
		1641	PPCODE:
		1642	{
		1643	STRLEN svlen;
		1644	char *svptr = SvPVbyte (data, svlen);
		1645	UV len = SvUV (length);
		1646
		1647	if (flags < 0)
		1648	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
		1649
		1650	if (offset < 0)
		1651	offset += svlen;
		1652
		1653	if (offset < 0 || offset > svlen)
		1654	croak ("offset outside of scalar");
		1655
		1656	if (!SvOK (length) || len + offset > svlen)
		1657	len = svlen - offset;
		1658
		1659	{
		1660	dREQ;
		1661
		1662	req->type = ix;
		1663	req->sv2 = SvREFCNT_inc (data);
		1664	req->ptr2 = (char *)svptr + offset;
		1665	req->size = len;
		1666	req->int1 = flags;
		1667
		1668	REQ_SEND;
		1669	}
		1670	}
		1671
		1672	void
		1673	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1674	PPCODE:
		1675	{
		1676	STRLEN svlen;
		1677	char *svptr = SvPVbyte (data, svlen);
		1678	UV len = SvUV (length);
		1679
		1680	if (offset < 0)
		1681	offset += svlen;
		1682
		1683	if (offset < 0 || offset > svlen)
		1684	croak ("offset outside of scalar");
		1685
		1686	if (!SvOK (length) || len + offset > svlen)
		1687	len = svlen - offset;
		1688
		1689	{
		1690	dREQ;
		1691
		1692	req->type = EIO_MLOCK;
		1693	req->sv2 = SvREFCNT_inc (data);
		1694	req->ptr2 = (char *)svptr + offset;
		1695	req->size = len;
		1696
		1697	REQ_SEND;
		1698	}
		1699	}
		1700
		1701	void
		1702	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1703	PPCODE:
		1704	{
		1705	dREQ;
		1706
		1707	req->type = EIO_MLOCKALL;
		1708	req->int1 = flags;
		1709
		1710	REQ_SEND;
		1711	}
		1712
		1713	void
		1714	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1715	PPCODE:
		1716	{
		1717	int fd = s_fileno_croak (fh, 0);
		1718	dREQ;
		1719
		1720	req->type = EIO_CUSTOM;
		1721	req->sv1 = newSVsv (fh);
		1722	req->int1 = fd;
		1723
		1724	req->feed = fiemap;
		1725	#if HAVE_FIEMAP
		1726	/* keep our fingers crossed that the next two types are 64 bit */
		1727	req->offs = start;
		1728	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1729	req->int2 = flags;
		1730	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1731	#endif
		1732
		1733	REQ_SEND;
		1734	}
		1735
		1736	void
881	aio_busy (double delay, SV *callback=&PL_sv_undef)	1737	aio_busy (double delay, SV *callback = &PL_sv_undef)
882	PPCODE:	1738	PPCODE:
883	{	1739	{
884	dREQ;	1740	dREQ;
885		1741
886	req->type = EIO_BUSY;	1742	req->type = EIO_BUSY;
…		…
888		1744
889	REQ_SEND;	1745	REQ_SEND;
890	}	1746	}
891		1747
892	void	1748	void
893	aio_group (SV *callback=&PL_sv_undef)	1749	aio_group (SV *callback = &PL_sv_undef)
894	PROTOTYPE: ;$
895	PPCODE:	1750	PPCODE:
896	{	1751	{
897	dREQ;	1752	dREQ;
898		1753
899	req->type = EIO_GROUP;	1754	req->type = EIO_GROUP;
900		1755
		1756	PUTBACK;
901	eio_submit (req);	1757	req_submit (req);
		1758	SPAGAIN;
		1759
902	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1760	XPUSHs (req_sv (req, aio_grp_stash));
903	}	1761	}
904		1762
905	void	1763	void
906	aio_nop (SV *callback=&PL_sv_undef)	1764	aio_nop (SV *callback = &PL_sv_undef)
907	ALIAS:	1765	ALIAS:
908	aio_nop = EIO_NOP	1766	aio_nop = EIO_NOP
909	aio_sync = EIO_SYNC	1767	aio_sync = EIO_SYNC
910	PPCODE:	1768	PPCODE:
911	{	1769	{
…		…
915		1773
916	REQ_SEND;	1774	REQ_SEND;
917	}	1775	}
918		1776
919	int	1777	int
920	aioreq_pri (int pri = 0)	1778	aioreq_pri (int pri = NO_INIT)
921	PROTOTYPE: ;$
922	CODE:	1779	CODE:
923	RETVAL = next_pri;	1780	RETVAL = next_pri;
924	if (items > 0)	1781	if (items > 0)
925	{	1782	{
926	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1783	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
938	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1795	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
939	next_pri = nice;	1796	next_pri = nice;
940		1797
941	void	1798	void
942	flush ()	1799	flush ()
943	PROTOTYPE:
944	CODE:	1800	CODE:
945	while (eio_nreqs ())	1801	while (eio_nreqs ())
946	{	1802	{
947	poll_wait ();	1803	poll_wait ();
948	poll_cb ();	1804	poll_cb ();
949	}	1805	}
950		1806
951	int	1807	int
952	poll()	1808	poll ()
953	PROTOTYPE:
954	CODE:	1809	CODE:
955	poll_wait ();	1810	poll_wait ();
956	RETVAL = poll_cb ();	1811	RETVAL = poll_cb ();
957	OUTPUT:	1812	OUTPUT:
958	RETVAL	1813	RETVAL
959		1814
960	int	1815	int
961	poll_fileno()	1816	poll_fileno ()
962	PROTOTYPE:
963	CODE:	1817	CODE:
964	RETVAL = respipe [0];	1818	RETVAL = s_epipe_fd (&respipe);
965	OUTPUT:	1819	OUTPUT:
966	RETVAL	1820	RETVAL
967		1821
968	int	1822	int
969	poll_cb(...)	1823	poll_cb (...)
970	PROTOTYPE:	1824	PROTOTYPE:
971	CODE:	1825	CODE:
972	RETVAL = poll_cb ();	1826	RETVAL = poll_cb ();
973	OUTPUT:	1827	OUTPUT:
974	RETVAL	1828	RETVAL
975		1829
976	void	1830	void
977	poll_wait()	1831	poll_wait ()
978	PROTOTYPE:
979	CODE:	1832	CODE:
980	poll_wait ();	1833	poll_wait ();
981		1834
982	int	1835	int
983	nreqs()	1836	nreqs ()
984	PROTOTYPE:
985	CODE:	1837	CODE:
986	RETVAL = eio_nreqs ();	1838	RETVAL = eio_nreqs ();
987	OUTPUT:	1839	OUTPUT:
988	RETVAL	1840	RETVAL
989		1841
990	int	1842	int
991	nready()	1843	nready ()
992	PROTOTYPE:
993	CODE:	1844	CODE:
994	RETVAL = eio_nready ();	1845	RETVAL = eio_nready ();
995	OUTPUT:	1846	OUTPUT:
996	RETVAL	1847	RETVAL
997		1848
998	int	1849	int
999	npending()	1850	npending ()
1000	PROTOTYPE:
1001	CODE:	1851	CODE:
1002	RETVAL = eio_npending ();	1852	RETVAL = eio_npending ();
1003	OUTPUT:	1853	OUTPUT:
1004	RETVAL	1854	RETVAL
1005		1855
1006	int	1856	int
1007	nthreads()	1857	nthreads ()
1008	PROTOTYPE:
1009	CODE:	1858	CODE:
1010	RETVAL = eio_nthreads ();	1859	RETVAL = eio_nthreads ();
1011	OUTPUT:	1860	OUTPUT:
1012	RETVAL	1861	RETVAL
1013		1862
		1863	int
		1864	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1865	CODE:
		1866	RETVAL = posix_fadvise (fh, offset, length, advice);
		1867	OUTPUT:
		1868	RETVAL
		1869
		1870	IV
		1871	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1872	CODE:
		1873	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1874	OUTPUT:
		1875	RETVAL
		1876
		1877	void
		1878	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1879	PPCODE:
		1880	sv_unmagic (scalar, MMAP_MAGIC);
		1881	{
		1882	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1883	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1884	if (addr == (void *)-1)
		1885	XSRETURN_NO;
		1886
		1887	sv_force_normal (scalar);
		1888
		1889	/* we store the length in mg_obj, as namlen is I32 :/ */
		1890	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1891	->mg_obj = (SV *)length;
		1892
		1893	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1894
		1895	if (!(prot & PROT_WRITE))
		1896	SvREADONLY_on (scalar);
		1897
		1898	if (SvLEN (scalar))
		1899	Safefree (SvPVX (scalar));
		1900
		1901	SvPVX (scalar) = (char *)addr;
		1902	SvCUR_set (scalar, length);
		1903	SvLEN_set (scalar, 0);
		1904	SvPOK_only (scalar);
		1905
		1906	XSRETURN_YES;
		1907	}
		1908
		1909	void
		1910	munmap (SV *scalar)
		1911	CODE:
		1912	sv_unmagic (scalar, MMAP_MAGIC);
		1913
		1914	int
		1915	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1916	ALIAS:
		1917	mprotect = 1
		1918	CODE:
		1919	{
		1920	STRLEN svlen;
		1921	void *addr = SvPVbyte (scalar, svlen);
		1922	STRLEN len = SvUV (length);
		1923
		1924	if (offset < 0)
		1925	offset += svlen;
		1926
		1927	if (offset < 0 || offset > svlen)
		1928	croak ("offset outside of scalar");
		1929
		1930	if (!SvOK (length) || len + offset > svlen)
		1931	len = svlen - offset;
		1932
		1933	addr = (void *)(((intptr_t)addr) + offset);
		1934	eio_page_align (&addr, &len);
		1935
		1936	switch (ix)
		1937	{
		1938	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1939	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1940	}
		1941	}
		1942	OUTPUT:
		1943	RETVAL
		1944
		1945	int
		1946	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		1947	CODE:
		1948	{
		1949	STRLEN svlen;
		1950	void *addr = SvPVbyte (scalar, svlen);
		1951	size_t len = SvUV (length);
		1952
		1953	if (offset < 0)
		1954	offset += svlen;
		1955
		1956	if (offset < 0 || offset > svlen)
		1957	croak ("offset outside of scalar");
		1958
		1959	if (!SvOK (length) || len + offset > svlen)
		1960	len = svlen - offset;
		1961
		1962	addr = (void *)(((intptr_t)addr) + offset);
		1963	eio_page_align (&addr, &len);
		1964	#if _POSIX_MEMLOCK_RANGE
		1965	RETVAL = munlock (addr, len);
		1966	#else
		1967	RETVAL = EIO_ENOSYS ();
		1968	#endif
		1969	}
		1970	OUTPUT:
		1971	RETVAL
		1972
		1973	int
		1974	munlockall ()
		1975	CODE:
		1976	#if _POSIX_MEMLOCK
		1977	munlockall ();
		1978	#else
		1979	RETVAL = EIO_ENOSYS ();
		1980	#endif
		1981	OUTPUT:
		1982	RETVAL
		1983
		1984	int
		1985	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1986	CODE:
		1987	{
		1988	#if HAVE_LINUX_SPLICE
		1989	loff_t off_in_, off_out_;
		1990	RETVAL = splice (
		1991	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1992	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1993	length, flags
		1994	);
		1995	#else
		1996	RETVAL = EIO_ENOSYS ();
		1997	#endif
		1998	}
		1999	OUTPUT:
		2000	RETVAL
		2001
		2002	int
		2003	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2004	CODE:
		2005	#if HAVE_LINUX_SPLICE
		2006	RETVAL = tee (rfh, wfh, length, flags);
		2007	#else
		2008	RETVAL = EIO_ENOSYS ();
		2009	#endif
		2010	OUTPUT:
		2011	RETVAL
		2012
		2013	int
		2014	pipesize (aio_rfd rfh, int new_size = -1)
		2015	PROTOTYPE: $;$
		2016	CODE:
		2017	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2018	if (new_size >= 0)
		2019	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2020	else
		2021	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2022	#else
		2023	errno = ENOSYS;
		2024	RETVAL = -1;
		2025	#endif
		2026	OUTPUT:
		2027	RETVAL
		2028
		2029	void
		2030	pipe2 (int flags = 0)
		2031	PROTOTYPE: ;$
		2032	PPCODE:
		2033	{
		2034	int fd[2];
		2035	int res;
		2036
		2037	if (flags)
		2038	#if HAVE_PIPE2
		2039	res = pipe2 (fd, flags);
		2040	#else
		2041	res = (errno = ENOSYS, -1);
		2042	#endif
		2043	else
		2044	res = pipe (fd);
		2045
		2046	if (!res)
		2047	{
		2048	EXTEND (SP, 2);
		2049	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2050	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2051	}
		2052	}
		2053
1014	void _on_next_submit (SV *cb)	2054	void _on_next_submit (SV *cb)
1015	CODE:	2055	CODE:
1016	SvREFCNT_dec (on_next_submit);	2056	SvREFCNT_dec (on_next_submit);
1017	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2057	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1018		2058
1019	PROTOTYPES: DISABLE	2059	PROTOTYPES: DISABLE
1020		2060
		2061	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2062
		2063	BOOT:
		2064	{
		2065	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2066	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2067	}
		2068
		2069	void
		2070	DESTROY (SV *self)
		2071	CODE:
		2072	{
		2073	aio_wd wd = SvAIO_WD (self);
		2074	#if HAVE_AT
		2075	{
		2076	SV *callback = &PL_sv_undef;
		2077	dREQ; /* clobbers next_pri :/ */
		2078	next_pri = req->pri; /* restore next_pri */
		2079	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2080	req->type = EIO_WD_CLOSE;
		2081	req->wd = wd;
		2082	REQ_SEND;
		2083	}
		2084	#else
		2085	eio_wd_close_sync (wd);
		2086	#endif
		2087	}
		2088
1021	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2089	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1022		2090
1023	void	2091	void
1024	cancel (aio_req_ornot req)	2092	cancel (aio_req_ornot req)
1025	CODE:	2093	CODE:
1026	eio_cancel (req);	2094	eio_cancel (req);
1027		2095
1028	void	2096	void
1029	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2097	cb (aio_req_ornot req, SV *callback = NO_INIT)
1030	CODE:	2098	PPCODE:
		2099	{
		2100	if (GIMME_V != G_VOID)
		2101	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		2102
		2103	if (items > 1)
		2104	{
		2105	SV *cb_cv = get_cb (callback);
		2106
1031	SvREFCNT_dec (req->callback);	2107	SvREFCNT_dec (req->callback);
1032	req->callback = newSVsv (callback);	2108	req->callback = SvREFCNT_inc (cb_cv);
		2109	}
		2110	}
1033		2111
1034	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	2112	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1035		2113
1036	void	2114	void
1037	add (aio_req grp, ...)	2115	add (aio_req grp, ...)
…		…
1069	AV *av;	2147	AV *av;
1070		2148
1071	grp->errorno = errno;	2149	grp->errorno = errno;
1072		2150
1073	av = newAV ();	2151	av = newAV ();
		2152	av_extend (av, items - 1);
1074		2153
1075	for (i = 1; i < items; ++i )	2154	for (i = 1; i < items; ++i )
1076	av_push (av, newSVsv (ST (i)));	2155	av_push (av, newSVsv (ST (i)));
1077		2156
1078	SvREFCNT_dec (grp->sv1);	2157	SvREFCNT_dec (grp->sv1);
…		…
1088	limit (aio_req grp, int limit)	2167	limit (aio_req grp, int limit)
1089	CODE:	2168	CODE:
1090	eio_grp_limit (grp, limit);	2169	eio_grp_limit (grp, limit);
1091		2170
1092	void	2171	void
1093	feed (aio_req grp, SV *callback=&PL_sv_undef)	2172	feed (aio_req grp, SV *callback = &PL_sv_undef)
1094	CODE:	2173	CODE:
1095	{	2174	{
1096	SvREFCNT_dec (grp->sv2);	2175	SvREFCNT_dec (grp->sv2);
1097	grp->sv2 = newSVsv (callback);	2176	grp->sv2 = newSVsv (callback);
		2177	grp->feed = aio_grp_feed;
1098		2178
1099	if (grp->int2 <= 0)	2179	if (grp->int2 <= 0)
1100	grp->int2 = 2;	2180	grp->int2 = 2;
1101		2181
1102	eio_grp_limit (grp, grp->int2);	2182	eio_grp_limit (grp, grp->int2);

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