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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.129 by root, Tue Sep 30 17:03:53 2008 UTC vs.
Revision 1.220 by root, Mon Jul 30 16:44:12 2012 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	#if __linux__
		25	# include <linux/fs.h>
		26	# ifdef FS_IOC_FIEMAP
		27	# include <linux/types.h>
		28	# include <linux/fiemap.h>
		29	# define HAVE_FIEMAP 1
		30	# endif
		31	#endif
		32
18	/* perl namespace pollution */	33	/* perl namespace pollution */
19	#undef VERSION	34	#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		35
70	/* perl stupidly overrides readdir and maybe others */	36	/* perl stupidly overrides readdir and maybe others */
71	/* with thread-unsafe versions, imagine that :( */	37	/* with thread-unsafe versions, imagine that :( */
72	#undef readdir	38	#undef readdir
73	#undef opendir	39	#undef opendir
74	#undef closedir	40	#undef closedir
75		41
		42	#ifdef _WIN32
		43
		44	// perl overrides all those nice libc functions
		45
		46	#undef malloc
		47	#undef free
		48	#undef open
		49	#undef read
		50	#undef write
		51	#undef send
		52	#undef recv
		53	#undef stat
		54	#undef lstat
		55	#undef fstat
		56	#undef truncate
		57	#undef ftruncate
		58	#undef open
		59	#undef link
		60	#undef close
		61	#undef unlink
		62	#undef mkdir
		63	#undef rmdir
		64	#undef rename
		65	#undef lseek
		66	#undef opendir
		67	#undef readdir
		68	#undef closedir
		69	#undef chmod
		70	#undef fchmod
		71	#undef dup
		72	#undef dup2
		73	#undef abort
		74	#undef pipe
		75
		76	#define EIO_STRUCT_STAT struct _stati64
76	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STATI64
77		78
78	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8
80	# define SvVAL64 SvIV
81	#else	79	#else
82	# define SvVAL64 SvNV	80
		81	#include <sys/time.h>
		82	#include <sys/select.h>
		83	#include <unistd.h>
		84	#include <utime.h>
		85	#include <signal.h>
		86
		87	#define EIO_STRUCT_STAT Stat_t
		88
83	#endif	89	#endif
84		90
85	/*****************************************************************************/	91	/*****************************************************************************/
86		92
87	#if __GNUC__ >= 3	93	#if __GNUC__ >= 3
…		…
93	#define expect_false(expr) expect ((expr) != 0, 0)	99	#define expect_false(expr) expect ((expr) != 0, 0)
94	#define expect_true(expr) expect ((expr) != 0, 1)	100	#define expect_true(expr) expect ((expr) != 0, 1)
95		101
96	/*****************************************************************************/	102	/*****************************************************************************/
97		103
98	static HV *stash;
99	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
		105	typedef int aio_rfd; /* read file desriptor */
		106	typedef int aio_wfd; /* write file descriptor */
100		107
101	#define AIO_REQ_KLASS "IO::AIO::REQ"	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
102	#define AIO_GRP_KLASS "IO::AIO::GRP"
103		109
104	#define EIO_REQ_MEMBERS \	110	#define EIO_REQ_MEMBERS \
105	SV *callback; \	111	SV *callback; \
106	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
107	STRLEN stroffset; \	114	STRLEN stroffset; \
108	SV *self;	115	SV *self;
109		116
110	#define EIO_NO_WRAPPERS 1	117	#define EIO_NO_WRAPPERS 1
111		118
		119	#include "libeio/config.h"
112	#include "libeio/eio.h"	120	#include "libeio/eio.h"
113		121
114	static int req_invoke (eio_req *req);	122	static int req_invoke (eio_req *req);
115	#define EIO_FINISH(req) req_invoke (req)	123	#define EIO_FINISH(req) req_invoke (req)
116	static void aio_grp_feed (eio_req *grp);
117	#define EIO_FEED(req) aio_grp_feed (req)
118	static void req_destroy (eio_req *grp);	124	static void req_destroy (eio_req *grp);
119	#define EIO_DESTROY(req) req_destroy (req)	125	#define EIO_DESTROY(req) req_destroy (req)
		126
		127	#include "libeio/eio.c"
		128
		129	#if !HAVE_POSIX_FADVISE
		130	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		131	#endif
		132
		133	#if !HAVE_POSIX_MADVISE
		134	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		135	#endif
		136
		137	#ifndef MAP_ANONYMOUS
		138	# ifdef MAP_ANON
		139	# define MAP_ANONYMOUS MAP_ANON
		140	# else
		141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		142	# endif
		143	#endif
		144
		145	/* defines all sorts of constants to 0 unless they are already defined */
		146	#include "def0.h"
		147
		148	#ifndef makedev
		149	# define makedev(maj,min) (((maj) << 8) | (min))
		150	#endif
		151	#ifndef major
		152	# define major(dev) ((dev) >> 8)
		153	#endif
		154	#ifndef minor
		155	# define minor(dev) ((dev) & 0xff)
		156	#endif
		157
		158	#ifndef PAGESIZE
		159	# define PAGESIZE sysconf (_SC_PAGESIZE)
		160	#endif
		161
		162	/*****************************************************************************/
		163
		164	static void
		165	fiemap (eio_req *req)
		166	{
		167	req->result = -1;
		168
		169	#if HAVE_FIEMAP
		170	/* assume some c99 */
		171	struct fiemap *fiemap = 0;
		172	size_t end_offset;
		173	int count = req->int3;
		174
		175	req->flags |= EIO_FLAG_PTR1_FREE;
		176
		177	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		178	/* increase in 3.5kb steps */
		179	if (count < 0)
		180	count = 8;
		181
		182	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		183	errno = ENOMEM;
		184	if (!fiemap)
		185	return;
		186
		187	req->ptr1 = fiemap;
		188
		189	fiemap->fm_start = req->offs;
		190	fiemap->fm_length = req->size;
		191	fiemap->fm_flags = req->int2;
		192	fiemap->fm_extent_count = count;
		193
		194	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		195	return;
		196
		197	if (req->int3 >= 0 /* not autosizing */
		198	|| !fiemap->fm_mapped_extents /* no more extents */
		199	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		200	goto done;
		201
		202	/* else we have to loop -
		203	* it would be tempting (atcually I tried that first) to just query the
		204	* number of extents needed, but linux often feels like not returning all
		205	* extents, without telling us it left any out. this complicates
		206	* this quite a bit.
		207	*/
		208
		209	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		210
		211	for (;;)
		212	{
		213	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		214	char scratch[3072];
		215	struct fiemap *incmap = (struct fiemap *)scratch;
		216
		217	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		218	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		219	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		220	incmap->fm_flags = fiemap->fm_flags;
		221	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		222
		223	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap))
		224	return;
		225
		226	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		227	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		228	errno = ENOMEM;
		229	if (!fiemap)
		230	return;
		231
		232	req->ptr1 = fiemap;
		233
		234	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		235	{
		236	struct fiemap_extent *e = incmap->fm_extents + count;
		237
		238	if (e->fe_logical + e->fe_length >= end_offset)
		239	goto done;
		240
		241	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		242
		243	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		244	goto done;
		245
		246	}
		247	}
		248
		249	done:
		250	req->result = 0;
		251
		252	#else
		253	errno = ENOSYS;
		254	#endif
		255	}
		256
		257	/*****************************************************************************/
120		258
121	enum {	259	enum {
122	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	260	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
123	};	261	};
124		262
125	#include "libeio/eio.c"
126
127	typedef eio_req *aio_req;	263	typedef eio_req *aio_req;
128	typedef eio_req *aio_req_ornot;	264	typedef eio_req *aio_req_ornot;
		265	typedef eio_wd aio_wd;
129		266
130	static SV *on_next_submit;	267	static SV *on_next_submit;
131	static int next_pri = EIO_PRI_DEFAULT;	268	static int next_pri = EIO_PRI_DEFAULT;
132	static int max_outstanding;	269	static int max_outstanding;
133		270
134	static int respipe_osf [2], respipe [2] = { -1, -1 };	271	static s_epipe respipe;
135		272
136	static void req_destroy (aio_req req);	273	static void req_destroy (aio_req req);
137	static void req_cancel (aio_req req);	274	static void req_cancel (aio_req req);
138		275
139	static void want_poll (void)	276	static void
		277	want_poll (void)
140	{	278	{
141	/* write a dummy byte to the pipe so fh becomes ready */	279	/* write a dummy byte to the pipe so fh becomes ready */
142	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	280	s_epipe_signal (&respipe);
143	}	281	}
144		282
145	static void done_poll (void)	283	static void
		284	done_poll (void)
146	{	285	{
147	/* read any signals sent by the worker threads */	286	/* read any signals sent by the worker threads */
148	char buf [4];	287	s_epipe_drain (&respipe);
149	while (respipe_read (respipe [0], buf, 4) == 4)
150	;
151	}	288	}
152		289
153	/* must be called at most once */	290	/* must be called at most once */
154	static SV *req_sv (aio_req req, const char *klass)	291	static SV *
		292	req_sv (aio_req req, HV *stash)
155	{	293	{
156	if (!req->self)	294	if (!req->self)
157	{	295	{
158	req->self = (SV *)newHV ();	296	req->self = (SV *)newHV ();
159	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	297	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
160	}	298	}
161		299
162	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	300	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
163	}	301	}
164		302
165	static aio_req SvAIO_REQ (SV *sv)	303	static SV *
		304	newSVaio_wd (aio_wd wd)
		305	{
		306	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		307	}
		308
		309	static aio_req
		310	SvAIO_REQ (SV *sv)
166	{	311	{
167	MAGIC *mg;	312	MAGIC *mg;
168		313
169	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	314	if (!SvROK (sv)
		315	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		316	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		317	&& SvSTASH (SvRV (sv)) != aio_req_stash
		318	&& !sv_derived_from (sv, "IO::AIO::REQ")))
170	croak ("object of class " AIO_REQ_KLASS " expected");	319	croak ("object of class IO::AIO::REQ expected");
171		320
172	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	321	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
173		322
174	return mg ? (aio_req)mg->mg_ptr : 0;	323	return mg ? (aio_req)mg->mg_ptr : 0;
175	}	324	}
176		325
		326	static aio_wd
		327	SvAIO_WD (SV *sv)
		328	{
		329	if (!SvROK (sv)
		330	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		331	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		332	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		333
		334	return (aio_wd)(long)SvIVX (SvRV (sv));
		335	}
		336
		337	static void
177	static void aio_grp_feed (aio_req grp)	338	aio_grp_feed (aio_req grp)
178	{	339	{
179	if (grp->sv2 && SvOK (grp->sv2))	340	if (grp->sv2 && SvOK (grp->sv2))
180	{	341	{
181	dSP;	342	dSP;
182		343
183	ENTER;	344	ENTER;
184	SAVETMPS;	345	SAVETMPS;
185	PUSHMARK (SP);	346	PUSHMARK (SP);
186	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	347	XPUSHs (req_sv (grp, aio_grp_stash));
187	PUTBACK;	348	PUTBACK;
188	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	349	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
189	SPAGAIN;	350	SPAGAIN;
190	FREETMPS;	351	FREETMPS;
191	LEAVE;	352	LEAVE;
192	}	353	}
193	}	354	}
194		355
		356	static void
195	static void req_submit (eio_req *req)	357	req_submit (eio_req *req)
196	{	358	{
197	eio_submit (req);	359	eio_submit (req);
198		360
199	if (expect_false (on_next_submit))	361	if (expect_false (on_next_submit))
200	{	362	{
…		…
207	PUTBACK;	369	PUTBACK;
208	call_sv (cb, G_DISCARD | G_EVAL);	370	call_sv (cb, G_DISCARD | G_EVAL);
209	}	371	}
210	}	372	}
211		373
		374	static int
212	static int req_invoke (eio_req *req)	375	req_invoke (eio_req *req)
213	{	376	{
214	dSP;
215
216	if (req->flags & FLAG_SV2_RO_OFF)	377	if (req->flags & FLAG_SV2_RO_OFF)
217	SvREADONLY_off (req->sv2);	378	SvREADONLY_off (req->sv2);
218		379
219	if (!EIO_CANCELLED (req) && req->callback)	380	if (!EIO_CANCELLED (req) && req->callback)
220	{	381	{
		382	dSP;
		383	static SV *sv_result_cache; /* caches the result integer SV */
		384	SV *sv_result;
		385
221	ENTER;	386	ENTER;
222	SAVETMPS;	387	SAVETMPS;
223	PUSHMARK (SP);	388	PUSHMARK (SP);
224	EXTEND (SP, 1);	389	EXTEND (SP, 1);
225		390
		391	/* do not recreate the result IV from scratch each time */
		392	if (expect_true (sv_result_cache))
		393	{
		394	sv_result = sv_result_cache; sv_result_cache = 0;
		395	SvIV_set (sv_result, req->result);
		396	SvIOK_only (sv_result);
		397	}
		398	else
		399	{
		400	sv_result = newSViv (req->result);
		401	SvREADONLY_on (sv_result);
		402	}
		403
226	switch (req->type)	404	switch (req->type)
227	{	405	{
		406	case EIO_WD_OPEN:
		407	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		408	break;
		409
228	case EIO_READDIR:	410	case EIO_READDIR:
229	{	411	{
230	SV *rv = &PL_sv_undef;	412	SV *rv = &PL_sv_undef;
231		413
232	if (req->result >= 0)	414	if (req->result >= 0)
233	{	415	{
234	int i;	416	int i;
235	char *buf = req->ptr2;	417	char *names = (char *)req->ptr2;
		418	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
236	AV *av = newAV ();	419	AV *av = newAV ();
237		420
238	av_extend (av, req->result - 1);	421	av_extend (av, req->result - 1);
239		422
240	for (i = 0; i < req->result; ++i)	423	for (i = 0; i < req->result; ++i)
241	{	424	{
242	SV *sv = newSVpv (buf, 0);	425	if (req->int1 & EIO_READDIR_DENTS)
		426	{
		427	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
243		428
		429	if (req->int1 & EIO_READDIR_CUSTOM2)
		430	{
		431	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		432	AV *avent = newAV ();
		433
		434	av_extend (avent, 2);
		435
		436	if (!sv_type [ent->type])
		437	{
		438	sv_type [ent->type] = newSViv (ent->type);
		439	SvREADONLY_on (sv_type [ent->type]);
		440	}
		441
		442	av_store (avent, 0, namesv);
		443	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		444	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		445
		446	av_store (av, i, newRV_noinc ((SV *)avent));
		447	}
		448	else
244	av_store (av, i, sv);	449	av_store (av, i, namesv);
		450
		451	++ent;
		452	}
		453	else
		454	{
		455	SV *name = newSVpv (names, 0);
		456	av_store (av, i, name);
245	buf += SvCUR (sv) + 1;	457	names += SvCUR (name) + 1;
		458	}
246	}	459	}
247		460
248	rv = sv_2mortal (newRV_noinc ((SV *)av));	461	rv = sv_2mortal (newRV_noinc ((SV *)av));
249	}	462	}
250		463
251	PUSHs (rv);	464	PUSHs (rv);
		465
		466	if (req->int1 & EIO_READDIR_CUSTOM1)
		467	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
252	}	468	}
253	break;	469	break;
254		470
255	case EIO_OPEN:	471	case EIO_OPEN:
256	{	472	{
…		…
262	GV *gv = (GV *)sv_newmortal ();	478	GV *gv = (GV *)sv_newmortal ();
263	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	479	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
264	char sym [64];	480	char sym [64];
265	int symlen;	481	int symlen;
266		482
267	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	483	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
268	gv_init (gv, stash, sym, symlen, 0);	484	gv_init (gv, aio_stash, sym, symlen, 0);
269		485
270	symlen = snprintf (	486	symlen = snprintf (
271	sym,	487	sym,
272	sizeof (sym),	488	sizeof (sym),
273	"%s&=%d",	489	"%s&=%d",
274	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	490	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
275	req->result	491	(int)req->result
276	);	492	);
277		493
278	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	494	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
279	fh = (SV *)gv;	495	fh = (SV *)gv;
280	}	496	}
281		497
282	PUSHs (fh);	498	PUSHs (fh);
283	}	499	}
		500	break;
		501
		502	case EIO_STATVFS:
		503	case EIO_FSTATVFS:
		504	{
		505	SV *rv = &PL_sv_undef;
		506
		507	#ifndef _WIN32
		508	if (req->result >= 0)
		509	{
		510	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		511	HV *hv = newHV ();
		512
		513	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		514
		515	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		516	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		517	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		518	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		519	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		520	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		521	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		522	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		523	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		524	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		525	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		526	}
		527	#endif
		528
		529	PUSHs (rv);
		530	}
		531
284	break;	532	break;
285		533
286	case EIO_GROUP:	534	case EIO_GROUP:
287	req->int1 = 2; /* mark group as finished */	535	req->int1 = 2; /* mark group as finished */
288		536
…		…
300	case EIO_NOP:	548	case EIO_NOP:
301	case EIO_BUSY:	549	case EIO_BUSY:
302	break;	550	break;
303		551
304	case EIO_READLINK:	552	case EIO_READLINK:
		553	case EIO_REALPATH:
305	if (req->result > 0)	554	if (req->result > 0)
306	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	555	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
307	break;	556	break;
308		557
309	case EIO_STAT:	558	case EIO_STAT:
310	case EIO_LSTAT:	559	case EIO_LSTAT:
311	case EIO_FSTAT:	560	case EIO_FSTAT:
312	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	561	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		562
313	PL_laststatval = req->result;	563	if (!(PL_laststatval = req->result))
		564	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
314	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	565	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
315	PUSHs (sv_2mortal (newSViv (req->result)));	566
		567	PUSHs (sv_result);
316	break;	568	break;
317		569
		570	case EIO_SEEK:
		571	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		572	break;
		573
318	case EIO_READ:	574	case EIO_READ:
		575	{
319	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	576	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
320	*SvEND (req->sv2) = 0;	577	*SvEND (req->sv2) = 0;
321	PUSHs (sv_2mortal (newSViv (req->result)));	578	SvPOK_only (req->sv2);
		579	SvSETMAGIC (req->sv2);
		580	PUSHs (sv_result);
		581	}
322	break;	582	break;
323		583
324	case EIO_DUP2:	584	case EIO_CUSTOM:
		585	if (req->feed == fiemap)
		586	{
		587	#if HAVE_FIEMAP
		588	if (!req->result)
		589	{
		590	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		591
		592	if (fiemap->fm_extent_count)
		593	{
		594	AV *av = newAV ();
		595	int i;
		596
		597	while (fiemap->fm_mapped_extents)
		598	{
		599	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		600	AV *ext_av = newAV ();
		601
		602	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		603	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		604	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		605	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		606
		607	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		608	}
		609
		610	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		611	}
		612	else
		613	{
		614	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		615	PUSHs (sv_result);
		616	}
		617	}
		618	#endif
		619	}
		620	else
		621	PUSHs (sv_result);
		622	break;
		623
		624	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
325	if (req->result > 0)	625	if (req->result > 0)
326	req->result = 0;	626	SvIV_set (sv_result, 0);
327	/* FALLTHROUGH */	627	/* FALLTHROUGH */
328		628
329	default:	629	default:
330	PUSHs (sv_2mortal (newSViv (req->result)));	630	PUSHs (sv_result);
331	break;	631	break;
332	}	632	}
333		633
334	errno = req->errorno;	634	errno = req->errorno;
335		635
336	PUTBACK;	636	PUTBACK;
337	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	637	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
338	SPAGAIN;	638	SPAGAIN;
339		639
		640	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		641	SvREFCNT_dec (sv_result);
		642	else
		643	sv_result_cache = sv_result;
		644
340	FREETMPS;	645	FREETMPS;
341	LEAVE;	646	LEAVE;
342		647
343	PUTBACK;	648	PUTBACK;
344	}	649	}
345		650
346	return !!SvTRUE (ERRSV);	651	return !!SvTRUE (ERRSV);
347	}	652	}
348		653
		654	static void
349	static void req_destroy (aio_req req)	655	req_destroy (aio_req req)
350	{	656	{
351	if (req->self)	657	if (req->self)
352	{	658	{
353	sv_unmagic (req->self, PERL_MAGIC_ext);	659	sv_unmagic (req->self, PERL_MAGIC_ext);
354	SvREFCNT_dec (req->self);	660	SvREFCNT_dec (req->self);
355	}	661	}
356		662
357	SvREFCNT_dec (req->sv1);	663	SvREFCNT_dec (req->sv1);
358	SvREFCNT_dec (req->sv2);	664	SvREFCNT_dec (req->sv2);
		665	SvREFCNT_dec (req->sv3);
		666	SvREFCNT_dec (req->sv4);
359	SvREFCNT_dec (req->callback);	667	SvREFCNT_dec (req->callback);
360		668
361	Safefree (req);	669	free (req);
362	}	670	}
363		671
		672	static void
364	static void req_cancel_subs (aio_req grp)	673	req_cancel_subs (aio_req grp)
365	{	674	{
366	aio_req sub;
367
368	if (grp->type != EIO_GROUP)	675	if (grp->type != EIO_GROUP)
369	return;	676	return;
370		677
371	SvREFCNT_dec (grp->sv2);	678	SvREFCNT_dec (grp->sv2);
372	grp->sv2 = 0;	679	grp->sv2 = 0;
373		680
374	eio_grp_cancel (grp);	681	eio_grp_cancel (grp);
375	}	682	}
376		683
377	#ifdef USE_SOCKETS_AS_HANDLES	684	static void ecb_cold
378	# define TO_SOCKET(x) (win32_get_osfhandle (x))	685	create_respipe (void)
379	#else	686	{
380	# define TO_SOCKET(x) (x)	687	if (s_epipe_renew (&respipe))
381	#endif	688	croak ("IO::AIO: unable to initialize result pipe");
		689	}
382		690
383	static void	691	static void
384	create_respipe (void)	692	poll_wait (void)
385	{	693	{
386	int old_readfd = respipe [0];
387
388	if (respipe [1] >= 0)
389	respipe_close (TO_SOCKET (respipe [1]));
390
391	#ifdef _WIN32
392	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
393	#else
394	if (pipe (respipe))
395	#endif
396	croak ("unable to initialize result pipe");
397
398	if (old_readfd >= 0)
399	{
400	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
401	croak ("unable to initialize result pipe(2)");
402
403	respipe_close (respipe [0]);
404	respipe [0] = old_readfd;
405	}
406
407	#ifdef _WIN32
408	int arg = 1;
409	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
410	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
411	#else
412	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
413	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
414	#endif
415	croak ("unable to initialize result pipe(3)");
416
417	respipe_osf [0] = TO_SOCKET (respipe [0]);
418	respipe_osf [1] = TO_SOCKET (respipe [1]);
419	}
420
421	static void poll_wait (void)
422	{
423	fd_set rfd;
424
425	while (eio_nreqs ())	694	while (eio_nreqs ())
426	{	695	{
427	int size;	696	int size;
428		697
429	X_LOCK (reslock);	698	X_LOCK (reslock);
…		…
433	if (size)	702	if (size)
434	return;	703	return;
435		704
436	etp_maybe_start_thread ();	705	etp_maybe_start_thread ();
437		706
438	FD_ZERO (&rfd);	707	s_epipe_wait (&respipe);
439	FD_SET (respipe [0], &rfd);
440
441	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
442	}	708	}
443	}	709	}
444		710
445	static int poll_cb (void)	711	static int
		712	poll_cb (void)
446	{	713	{
447	for (;;)	714	for (;;)
448	{	715	{
449	int res = eio_poll ();	716	int res = eio_poll ();
450		717
…		…
456		723
457	poll_wait ();	724	poll_wait ();
458	}	725	}
459	}	726	}
460		727
461	static void atfork_child (void)	728	static void ecb_cold
		729	reinit (void)
462	{	730	{
463	create_respipe ();	731	create_respipe ();
		732
		733	if (eio_init (want_poll, done_poll) < 0)
		734	croak ("IO::AIO: unable to initialise eio library");
464	}	735	}
		736
		737	/*****************************************************************************/
		738
		739	#if !_POSIX_MAPPED_FILES
		740	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		741	# define munmap(addr,length) EIO_ENOSYS ()
		742	#endif
		743
		744	#if !_POSIX_MEMORY_PROTECTION
		745	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		746	# define PROT_NONE 0
		747	# define PROT_WRITE 0
		748	# define MAP_PRIVATE 0
		749	# define MAP_SHARED 0
		750	# define MAP_FIXED 0
		751	#endif
		752
		753	#define MMAP_MAGIC PERL_MAGIC_ext
		754
		755	static int ecb_cold
		756	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		757	{
		758	int old_errno = errno;
		759	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		760	errno = old_errno;
		761
		762	mg->mg_obj = 0; /* just in case */
		763
		764	SvREADONLY_off (sv);
		765
		766	if (SvPVX (sv) != mg->mg_ptr)
		767	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		768
		769	SvCUR_set (sv, 0);
		770	SvPVX (sv) = 0;
		771	SvOK_off (sv);
		772
		773	return 0;
		774	}
		775
		776	static MGVTBL mmap_vtbl = {
		777	0, 0, 0, 0, mmap_free
		778	};
		779
		780	/*****************************************************************************/
465		781
466	static SV *	782	static SV *
467	get_cb (SV *cb_sv)	783	get_cb (SV *cb_sv)
468	{	784	{
469	HV *st;	785	SvGETMAGIC (cb_sv);
470	GV *gvp;	786	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		787	}
		788
		789	static aio_req ecb_noinline
		790	dreq (SV *callback)
		791	{
471	CV *cv;	792	SV *cb_cv;
		793	aio_req req;
		794	int req_pri = next_pri;
		795	next_pri = EIO_PRI_DEFAULT;
472		796
473	if (!SvOK (cb_sv))	797	cb_cv = get_cb (callback);
		798
		799	req = calloc (sizeof (*req), 1);
		800	if (!req)
		801	croak ("out of memory during eio_req allocation");
		802
		803	req->callback = SvREFCNT_inc (cb_cv);
		804	req->pri = req_pri;
		805
474	return 0;	806	return req;
475
476	cv = sv_2cv (cb_sv, &st, &gvp, 0);
477
478	if (!cv)
479	croak ("IO::AIO callback must be undef or a CODE reference");
480
481	return (SV *)cv;
482	}	807	}
483		808
484	#define dREQ \	809	#define dREQ \
485	SV *cb_cv; \	810	aio_req req = dreq (callback); \
486	aio_req req; \
487	int req_pri = next_pri; \
488	next_pri = EIO_PRI_DEFAULT; \
489	\
490	cb_cv = get_cb (callback); \
491	\
492	Newz (0, req, 1, eio_req); \
493	if (!req) \
494	croak ("out of memory during eio_req allocation"); \
495	\
496	req->callback = SvREFCNT_inc (cb_cv); \
497	req->pri = req_pri
498		811
499	#define REQ_SEND \	812	#define REQ_SEND \
500	PUTBACK; \	813	PUTBACK; \
501	req_submit (req); \	814	req_submit (req); \
502	SPAGAIN; \	815	SPAGAIN; \
503	\	816	\
504	if (GIMME_V != G_VOID) \	817	if (GIMME_V != G_VOID) \
505	XPUSHs (req_sv (req, AIO_REQ_KLASS));	818	XPUSHs (req_sv (req, aio_req_stash));
506		819
		820	ecb_inline void
		821	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		822	{
		823	if (expect_false (SvROK (path)))
		824	{
		825	SV *rv = SvRV (path);
		826	SV *wdob;
		827
		828	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		829	{
		830	path = AvARRAY (rv)[1];
		831	wdob = AvARRAY (rv)[0];
		832
		833	if (SvOK (wdob))
		834	{
		835	*wd = SvAIO_WD (wdob);
		836	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		837	}
		838	else
		839	*wd = EIO_INVALID_WD;
		840	}
		841	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		842	{
		843	*wd = (aio_wd)(long)SvIVX (rv);
		844	*wdsv = SvREFCNT_inc_NN (rv);
		845	*ptr = ".";
		846	return; /* path set to "." */
		847	}
		848	else
		849	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		850	}
		851
		852	*pathsv = newSVsv (path);
		853	*ptr = SvPVbyte_nolen (*pathsv);
		854	}
		855
		856	static void ecb_noinline
		857	req_set_path1 (aio_req req, SV *path)
		858	{
		859	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		860	}
		861
		862	static void ecb_noinline
		863	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		864	{
		865	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		866
		867	switch (SvTYPE (rv))
		868	{
		869	case SVt_PVIO:
		870	case SVt_PVLV:
		871	case SVt_PVGV:
		872	req->type = type_fh;
		873	req->sv1 = newSVsv (fh_or_path);
		874	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		875	break;
		876
		877	default:
		878	req->type = type_path;
		879	req_set_path1 (req, fh_or_path);
		880	break;
		881	}
		882	}
		883
		884	XS(boot_IO__AIO) ecb_cold;
		885
507	MODULE = IO::AIO PACKAGE = IO::AIO	886	MODULE = IO::AIO PACKAGE = IO::AIO
508		887
509	PROTOTYPES: ENABLE	888	PROTOTYPES: ENABLE
510		889
511	BOOT:	890	BOOT:
512	{	891	{
		892	static const struct {
		893	const char *name;
		894	IV iv;
		895	} *civ, const_iv[] = {
		896	# define const_niv(name, value) { # name, (IV) value },
		897	# define const_iv(name) { # name, (IV) name },
		898	# define const_eio(name) { # name, (IV) EIO_ ## name },
		899
		900	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		901
		902	const_iv (ENOSYS)
		903	const_iv (EXDEV)
		904	const_iv (EBADR)
		905
		906	const_iv (O_RDONLY)
		907	const_iv (O_WRONLY)
		908	const_iv (O_RDWR)
		909	const_iv (O_CREAT)
		910	const_iv (O_TRUNC)
		911	const_iv (O_EXCL)
		912	const_iv (O_APPEND)
		913
		914	const_iv (O_ASYNC)
		915	const_iv (O_DIRECT)
		916	const_iv (O_NOATIME)
		917
		918	const_iv (O_CLOEXEC)
		919	const_iv (O_NOCTTY)
		920	const_iv (O_NOFOLLOW)
		921	const_iv (O_NONBLOCK)
		922	const_iv (O_EXEC)
		923	const_iv (O_SEARCH)
		924	const_iv (O_DIRECTORY)
		925	const_iv (O_DSYNC)
		926	const_iv (O_RSYNC)
		927	const_iv (O_SYNC)
		928	const_iv (O_TTY_INIT)
		929
		930	const_iv (S_IFIFO)
		931	const_iv (S_IFCHR)
		932	const_iv (S_IFBLK)
		933	const_iv (S_IFLNK)
		934	const_iv (S_IFREG)
		935	const_iv (S_IFDIR)
		936	const_iv (S_IFWHT)
		937	const_iv (S_IFSOCK)
		938	const_iv (S_IFMT)
		939
		940	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		941	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		942	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		943	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		944	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		945	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		946
		947	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		948	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		949	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		950	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		951	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		952
		953	const_iv (ST_RDONLY)
		954	const_iv (ST_NOSUID)
		955	const_iv (ST_NODEV)
		956	const_iv (ST_NOEXEC)
		957	const_iv (ST_SYNCHRONOUS)
		958	const_iv (ST_MANDLOCK)
		959	const_iv (ST_WRITE)
		960	const_iv (ST_APPEND)
		961	const_iv (ST_IMMUTABLE)
		962	const_iv (ST_NOATIME)
		963	const_iv (ST_NODIRATIME)
		964	const_iv (ST_RELATIME)
		965
		966	const_iv (PROT_NONE)
		967	const_iv (PROT_EXEC)
		968	const_iv (PROT_READ)
		969	const_iv (PROT_WRITE)
		970
		971	/*const_iv (MAP_FIXED)*/
		972	const_iv (MAP_PRIVATE)
		973	const_iv (MAP_SHARED)
		974	const_iv (MAP_ANONYMOUS)
		975
		976	/* linuxish */
		977	const_iv (MAP_HUGETLB)
		978	const_iv (MAP_LOCKED)
		979	const_iv (MAP_NORESERVE)
		980	const_iv (MAP_POPULATE)
		981	const_iv (MAP_NONBLOCK)
		982
		983	const_iv (FIEMAP_FLAG_SYNC)
		984	const_iv (FIEMAP_FLAG_XATTR)
		985	const_iv (FIEMAP_FLAGS_COMPAT)
		986	const_iv (FIEMAP_EXTENT_LAST)
		987	const_iv (FIEMAP_EXTENT_UNKNOWN)
		988	const_iv (FIEMAP_EXTENT_DELALLOC)
		989	const_iv (FIEMAP_EXTENT_ENCODED)
		990	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		991	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		992	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		993	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		994	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		995	const_iv (FIEMAP_EXTENT_MERGED)
		996	const_iv (FIEMAP_EXTENT_SHARED)
		997
		998	const_iv (SPLICE_F_MOVE)
		999	const_iv (SPLICE_F_NONBLOCK)
		1000	const_iv (SPLICE_F_MORE)
		1001	const_iv (SPLICE_F_GIFT)
		1002
		1003	const_iv (SEEK_DATA)
		1004	const_iv (SEEK_HOLE)
		1005
		1006	/* libeio constants */
		1007	const_eio (SEEK_SET)
		1008	const_eio (SEEK_CUR)
		1009	const_eio (SEEK_END)
		1010
		1011	const_eio (MCL_FUTURE)
		1012	const_eio (MCL_CURRENT)
		1013
		1014	const_eio (MS_ASYNC)
		1015	const_eio (MS_INVALIDATE)
		1016	const_eio (MS_SYNC)
		1017
		1018	const_eio (MT_MODIFY)
		1019
		1020	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		1021	const_eio (SYNC_FILE_RANGE_WRITE)
		1022	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1023
		1024	const_eio (FALLOC_FL_KEEP_SIZE)
		1025	const_eio (FALLOC_FL_PUNCH_HOLE)
		1026
		1027	const_eio (READDIR_DENTS)
		1028	const_eio (READDIR_DIRS_FIRST)
		1029	const_eio (READDIR_STAT_ORDER)
		1030	const_eio (READDIR_FOUND_UNKNOWN)
		1031
		1032	const_eio (DT_UNKNOWN)
		1033	const_eio (DT_FIFO)
		1034	const_eio (DT_CHR)
		1035	const_eio (DT_DIR)
		1036	const_eio (DT_BLK)
		1037	const_eio (DT_REG)
		1038	const_eio (DT_LNK)
		1039	const_eio (DT_SOCK)
		1040	const_eio (DT_WHT)
		1041	};
		1042
513	stash = gv_stashpv ("IO::AIO", 1);	1043	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1044	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1045	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1046	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
514		1047
515	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1048	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
516	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1049	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
517	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
518	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
519	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
520	#ifndef _WIN32
521	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
522	#endif
523		1050
524	create_respipe ();	1051	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
525		1052
526	if (eio_init (want_poll, done_poll) < 0)	1053	reinit ();
527	croak ("IO::AIO: unable to initialise eio library");
528
529	/* atfork child called in fifo order, so before eio's handler */
530	X_THREAD_ATFORK (0, 0, atfork_child);
531	}	1054	}
532		1055
533	void	1056	void
		1057	reinit ()
		1058	PROTOTYPE:
		1059
		1060	void
534	max_poll_reqs (int nreqs)	1061	max_poll_reqs (unsigned int nreqs)
535	PROTOTYPE: $	1062	PROTOTYPE: $
536	CODE:	1063	CODE:
537	eio_set_max_poll_reqs (nreqs);	1064	eio_set_max_poll_reqs (nreqs);
538		1065
539	void	1066	void
…		…
541	PROTOTYPE: $	1068	PROTOTYPE: $
542	CODE:	1069	CODE:
543	eio_set_max_poll_time (nseconds);	1070	eio_set_max_poll_time (nseconds);
544		1071
545	void	1072	void
546	min_parallel (int nthreads)	1073	min_parallel (unsigned int nthreads)
547	PROTOTYPE: $	1074	PROTOTYPE: $
548	CODE:	1075	CODE:
549	eio_set_min_parallel (nthreads);	1076	eio_set_min_parallel (nthreads);
550		1077
551	void	1078	void
552	max_parallel (int nthreads)	1079	max_parallel (unsigned int nthreads)
553	PROTOTYPE: $	1080	PROTOTYPE: $
554	CODE:	1081	CODE:
555	eio_set_max_parallel (nthreads);	1082	eio_set_max_parallel (nthreads);
556		1083
557	void	1084	void
558	max_idle (int nthreads)	1085	max_idle (unsigned int nthreads)
559	PROTOTYPE: $	1086	PROTOTYPE: $
560	CODE:	1087	CODE:
561	eio_set_max_idle (nthreads);	1088	eio_set_max_idle (nthreads);
562		1089
563	void	1090	void
		1091	idle_timeout (unsigned int seconds)
		1092	PROTOTYPE: $
		1093	CODE:
		1094	eio_set_idle_timeout (seconds);
		1095
		1096	void
564	max_outstanding (int maxreqs)	1097	max_outstanding (unsigned int maxreqs)
565	PROTOTYPE: $	1098	PROTOTYPE: $
566	CODE:	1099	CODE:
567	max_outstanding = maxreqs;	1100	max_outstanding = maxreqs;
568		1101
569	void	1102	void
		1103	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1104	PPCODE:
		1105	{
		1106	dREQ;
		1107
		1108	req->type = EIO_WD_OPEN;
		1109	req_set_path1 (req, pathname);
		1110
		1111	REQ_SEND;
		1112	}
		1113
		1114	void
570	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1115	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
571	PROTOTYPE: $$$;$
572	PPCODE:	1116	PPCODE:
573	{	1117	{
574	dREQ;	1118	dREQ;
575		1119
576	req->type = EIO_OPEN;	1120	req->type = EIO_OPEN;
577	req->sv1 = newSVsv (pathname);	1121	req_set_path1 (req, pathname);
578	req->ptr1 = SvPVbyte_nolen (req->sv1);
579	req->int1 = flags;	1122	req->int1 = flags;
580	req->int2 = mode;	1123	req->int2 = mode;
581		1124
582	REQ_SEND;	1125	REQ_SEND;
583	}	1126	}
584		1127
585	void	1128	void
586	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1129	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
587	PROTOTYPE: $;$
588	ALIAS:	1130	ALIAS:
589	aio_fsync = EIO_FSYNC	1131	aio_fsync = EIO_FSYNC
590	aio_fdatasync = EIO_FDATASYNC	1132	aio_fdatasync = EIO_FDATASYNC
		1133	aio_syncfs = EIO_SYNCFS
591	PPCODE:	1134	PPCODE:
592	{	1135	{
		1136	int fd = s_fileno_croak (fh, 0);
593	dREQ;	1137	dREQ;
594		1138
595	req->type = ix;	1139	req->type = ix;
596	req->sv1 = newSVsv (fh);	1140	req->sv1 = newSVsv (fh);
597	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1141	req->int1 = fd;
598		1142
599	REQ_SEND (req);	1143	REQ_SEND;
		1144	}
		1145
		1146	void
		1147	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		1148	PPCODE:
		1149	{
		1150	int fd = s_fileno_croak (fh, 0);
		1151	dREQ;
		1152
		1153	req->type = EIO_SYNC_FILE_RANGE;
		1154	req->sv1 = newSVsv (fh);
		1155	req->int1 = fd;
		1156	req->offs = offset;
		1157	req->size = nbytes;
		1158	req->int2 = flags;
		1159
		1160	REQ_SEND;
		1161	}
		1162
		1163	void
		1164	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1165	PPCODE:
		1166	{
		1167	int fd = s_fileno_croak (fh, 0);
		1168	dREQ;
		1169
		1170	req->type = EIO_FALLOCATE;
		1171	req->sv1 = newSVsv (fh);
		1172	req->int1 = fd;
		1173	req->int2 = mode;
		1174	req->offs = offset;
		1175	req->size = len;
		1176
		1177	REQ_SEND;
600	}	1178	}
601		1179
602	void	1180	void
603	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1181	aio_close (SV *fh, SV *callback=&PL_sv_undef)
604	PROTOTYPE: $;$
605	PPCODE:	1182	PPCODE:
606	{	1183	{
607	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1184	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1185	int fd = s_fileno_croak (fh, 0);
608	dREQ;	1186	dREQ;
609		1187
610	if (close_pipe < 0)	1188	if (expect_false (close_fd < 0))
611	{	1189	{
612	int pipefd [2];	1190	int pipefd [2];
613		1191
		1192	if (
		1193	#ifdef _WIN32
		1194	_pipe (pipefd, 1, _O_BINARY) < 0
		1195	#else
614	if (pipe (pipefd) < 0	1196	pipe (pipefd) < 0
615	|| close (pipefd [1]) < 0
616	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1197	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1198	#endif
		1199	|| close (pipefd [1]) < 0
		1200	)
617	abort (); /*D*/	1201	abort (); /*D*/
618		1202
619	close_pipe = pipefd [0];	1203	close_fd = pipefd [0];
620	}	1204	}
621		1205
622	req->type = EIO_DUP2;	1206	req->type = EIO_DUP2;
623	req->int1 = close_pipe;	1207	req->int1 = close_fd;
624	req->sv2 = newSVsv (fh);	1208	req->sv2 = newSVsv (fh);
625	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1209	req->int2 = fd;
626		1210
627	REQ_SEND (req);	1211	REQ_SEND;
		1212	}
		1213
		1214	void
		1215	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1216	PPCODE:
		1217	{
		1218	int fd = s_fileno_croak (fh, 0);
		1219	dREQ;
		1220
		1221	req->type = EIO_SEEK;
		1222	req->sv1 = newSVsv (fh);
		1223	req->int1 = fd;
		1224	req->offs = SvVAL64 (offset);
		1225	req->int2 = whence;
		1226
		1227	REQ_SEND;
628	}	1228	}
629		1229
630	void	1230	void
631	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1231	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
632	ALIAS:	1232	ALIAS:
633	aio_read = EIO_READ	1233	aio_read = EIO_READ
634	aio_write = EIO_WRITE	1234	aio_write = EIO_WRITE
635	PROTOTYPE: $$$$$;$
636	PPCODE:	1235	PPCODE:
637	{	1236	{
638	STRLEN svlen;	1237	STRLEN svlen;
		1238	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
639	char *svptr = SvPVbyte (data, svlen);	1239	char *svptr = SvPVbyte (data, svlen);
640	UV len = SvUV (length);	1240	UV len = SvUV (length);
641
642	SvUPGRADE (data, SVt_PV);
643	SvPOK_on (data);
644		1241
645	if (dataoffset < 0)	1242	if (dataoffset < 0)
646	dataoffset += svlen;	1243	dataoffset += svlen;
647		1244
648	if (dataoffset < 0 || dataoffset > svlen)	1245	if (dataoffset < 0 || dataoffset > svlen)
…		…
654	if (!SvOK (length) || len + dataoffset > svlen)	1251	if (!SvOK (length) || len + dataoffset > svlen)
655	len = svlen - dataoffset;	1252	len = svlen - dataoffset;
656	}	1253	}
657	else	1254	else
658	{	1255	{
659	/* read: grow scalar as necessary */	1256	/* read: check type and grow scalar as necessary */
		1257	SvUPGRADE (data, SVt_PV);
		1258	if (SvLEN (data) >= SvCUR (data))
660	svptr = SvGROW (data, len + dataoffset + 1);	1259	svptr = SvGROW (data, len + dataoffset + 1);
		1260	else if (SvCUR (data) < len + dataoffset)
		1261	croak ("length + dataoffset outside of scalar, and cannot grow");
661	}	1262	}
662
663	if (len < 0)
664	croak ("length must not be negative");
665		1263
666	{	1264	{
667	dREQ;	1265	dREQ;
668		1266
669	req->type = ix;	1267	req->type = ix;
670	req->sv1 = newSVsv (fh);	1268	req->sv1 = newSVsv (fh);
671	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1269	req->int1 = fd;
672	: IoOFP (sv_2io (fh)));
673	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1270	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
674	req->size = len;	1271	req->size = len;
675	req->sv2 = SvREFCNT_inc (data);	1272	req->sv2 = SvREFCNT_inc (data);
676	req->ptr2 = (char *)svptr + dataoffset;	1273	req->ptr2 = (char *)svptr + dataoffset;
677	req->stroffset = dataoffset;	1274	req->stroffset = dataoffset;
…		…
685	REQ_SEND;	1282	REQ_SEND;
686	}	1283	}
687	}	1284	}
688		1285
689	void	1286	void
690	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1287	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
691	PROTOTYPE: $$;$	1288	ALIAS:
		1289	aio_readlink = EIO_READLINK
		1290	aio_realpath = EIO_REALPATH
692	PPCODE:	1291	PPCODE:
693	{	1292	{
694	SV *data;
695	dREQ;	1293	dREQ;
696		1294
697	req->type = EIO_READLINK;	1295	req->type = ix;
698	req->sv1 = newSVsv (path);	1296	req_set_path1 (req, pathname);
699	req->ptr1 = SvPVbyte_nolen (req->sv1);
700		1297
701	REQ_SEND;	1298	REQ_SEND;
702	}	1299	}
703		1300
704	void	1301	void
705	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1302	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
706	PROTOTYPE: $$$$;$
707	PPCODE:	1303	PPCODE:
708	{	1304	{
		1305	int ifd = s_fileno_croak (in_fh , 0);
		1306	int ofd = s_fileno_croak (out_fh, 1);
709	dREQ;	1307	dREQ;
710		1308
711	req->type = EIO_SENDFILE;	1309	req->type = EIO_SENDFILE;
712	req->sv1 = newSVsv (out_fh);	1310	req->sv1 = newSVsv (out_fh);
713	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1311	req->int1 = ofd;
714	req->sv2 = newSVsv (in_fh);	1312	req->sv2 = newSVsv (in_fh);
715	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1313	req->int2 = ifd;
716	req->offs = SvVAL64 (in_offset);	1314	req->offs = in_offset;
717	req->size = length;	1315	req->size = length;
718		1316
719	REQ_SEND;	1317	REQ_SEND;
720	}	1318	}
721		1319
722	void	1320	void
723	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1321	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
724	PROTOTYPE: $$$;$
725	PPCODE:	1322	PPCODE:
726	{	1323	{
		1324	int fd = s_fileno_croak (fh, 0);
727	dREQ;	1325	dREQ;
728		1326
729	req->type = EIO_READAHEAD;	1327	req->type = EIO_READAHEAD;
730	req->sv1 = newSVsv (fh);	1328	req->sv1 = newSVsv (fh);
731	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1329	req->int1 = fd;
732	req->offs = SvVAL64 (offset);	1330	req->offs = offset;
733	req->size = length;	1331	req->size = length;
734		1332
735	REQ_SEND;	1333	REQ_SEND;
736	}	1334	}
737		1335
738	void	1336	void
739	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1337	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
740	ALIAS:	1338	ALIAS:
741	aio_stat = EIO_STAT	1339	aio_stat = EIO_STAT
742	aio_lstat = EIO_LSTAT	1340	aio_lstat = EIO_LSTAT
		1341	aio_statvfs = EIO_STATVFS
743	PPCODE:	1342	PPCODE:
744	{	1343	{
745	dREQ;	1344	dREQ;
746		1345
747	req->sv1 = newSVsv (fh_or_path);	1346	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
748
749	if (SvPOK (req->sv1))
750	{
751	req->type = ix;
752	req->ptr1 = SvPVbyte_nolen (req->sv1);
753	}
754	else
755	{
756	req->type = EIO_FSTAT;
757	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
758	}
759		1347
760	REQ_SEND;	1348	REQ_SEND;
761	}	1349	}
		1350
		1351	UV
		1352	major (UV dev)
		1353	ALIAS:
		1354	minor = 1
		1355	CODE:
		1356	RETVAL = ix ? major (dev) : minor (dev);
		1357	OUTPUT:
		1358	RETVAL
		1359
		1360	UV
		1361	makedev (UV maj, UV min)
		1362	CODE:
		1363	RETVAL = makedev (maj, min);
		1364	OUTPUT:
		1365	RETVAL
762		1366
763	void	1367	void
764	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1368	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
765	PPCODE:	1369	PPCODE:
766	{	1370	{
767	dREQ;	1371	dREQ;
768		1372
769	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1373	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
770	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1374	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
771	req->sv1 = newSVsv (fh_or_path);	1375	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
772
773	if (SvPOK (req->sv1))
774	{
775	req->type = EIO_UTIME;
776	req->ptr1 = SvPVbyte_nolen (req->sv1);
777	}
778	else
779	{
780	req->type = EIO_FUTIME;
781	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
782	}
783		1376
784	REQ_SEND;	1377	REQ_SEND;
785	}	1378	}
786		1379
787	void	1380	void
788	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1381	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
789	PPCODE:	1382	PPCODE:
790	{	1383	{
791	dREQ;	1384	dREQ;
792		1385
793	req->sv1 = newSVsv (fh_or_path);
794	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1386	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
795		1387	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
796	if (SvPOK (req->sv1))
797	{
798	req->type = EIO_TRUNCATE;
799	req->ptr1 = SvPVbyte_nolen (req->sv1);
800	}
801	else
802	{
803	req->type = EIO_FTRUNCATE;
804	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
805	}
806		1388
807	REQ_SEND;	1389	REQ_SEND;
808	}	1390	}
809		1391
810	void	1392	void
811	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1393	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
812	ALIAS:
813	aio_chmod = EIO_CHMOD
814	aio_mkdir = EIO_MKDIR
815	PPCODE:	1394	PPCODE:
816	{	1395	{
817	dREQ;	1396	dREQ;
818		1397
819	req->int2 = mode;	1398	req->int2 = mode;
820	req->sv1 = newSVsv (fh_or_path);	1399	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
821
822	if (SvPOK (req->sv1))
823	{
824	req->type = ix;
825	req->ptr1 = SvPVbyte_nolen (req->sv1);
826	}
827	else
828	{
829	req->type = EIO_FCHMOD;
830	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
831	}
832		1400
833	REQ_SEND;	1401	REQ_SEND;
834	}	1402	}
835		1403
836	void	1404	void
…		…
839	{	1407	{
840	dREQ;	1408	dREQ;
841		1409
842	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1410	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
843	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1411	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
844	req->sv1 = newSVsv (fh_or_path);	1412	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
845		1413
846	if (SvPOK (req->sv1))	1414	REQ_SEND;
847	{	1415	}
		1416
		1417	void
		1418	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1419	PPCODE:
		1420	{
		1421	dREQ;
		1422
		1423	req->type = EIO_READDIR;
		1424	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1425
		1426	if (flags & EIO_READDIR_DENTS)
		1427	req->int1 |= EIO_READDIR_CUSTOM2;
		1428
		1429	req_set_path1 (req, pathname);
		1430
		1431	REQ_SEND;
		1432	}
		1433
		1434	void
		1435	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1436	PPCODE:
		1437	{
		1438	dREQ;
		1439
848	req->type = EIO_CHOWN;	1440	req->type = EIO_MKDIR;
849	req->ptr1 = SvPVbyte_nolen (req->sv1);	1441	req->int2 = mode;
850	}	1442	req_set_path1 (req, pathname);
851	else
852	{
853	req->type = EIO_FCHOWN;
854	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
855	}
856		1443
857	REQ_SEND;	1444	REQ_SEND;
858	}	1445	}
859		1446
860	void	1447	void
…		…
866	PPCODE:	1453	PPCODE:
867	{	1454	{
868	dREQ;	1455	dREQ;
869		1456
870	req->type = ix;	1457	req->type = ix;
871	req->sv1 = newSVsv (pathname);	1458	req_set_path1 (req, pathname);
872	req->ptr1 = SvPVbyte_nolen (req->sv1);
873		1459
874	REQ_SEND;	1460	REQ_SEND;
875	}	1461	}
876		1462
877	void	1463	void
…		…
880	aio_link = EIO_LINK	1466	aio_link = EIO_LINK
881	aio_symlink = EIO_SYMLINK	1467	aio_symlink = EIO_SYMLINK
882	aio_rename = EIO_RENAME	1468	aio_rename = EIO_RENAME
883	PPCODE:	1469	PPCODE:
884	{	1470	{
		1471	eio_wd wd2 = 0;
885	dREQ;	1472	dREQ;
886		1473
887	req->type = ix;	1474	req->type = ix;
888	req->sv1 = newSVsv (oldpath);	1475	req_set_path1 (req, oldpath);
889	req->ptr1 = SvPVbyte_nolen (req->sv1);	1476	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
890	req->sv2 = newSVsv (newpath);	1477	req->int3 = (long)wd2;
891	req->ptr2 = SvPVbyte_nolen (req->sv2);
892		1478
893	REQ_SEND;	1479	REQ_SEND;
894	}	1480	}
895		1481
896	void	1482	void
…		…
898	PPCODE:	1484	PPCODE:
899	{	1485	{
900	dREQ;	1486	dREQ;
901		1487
902	req->type = EIO_MKNOD;	1488	req->type = EIO_MKNOD;
903	req->sv1 = newSVsv (pathname);
904	req->ptr1 = SvPVbyte_nolen (req->sv1);
905	req->int2 = (mode_t)mode;	1489	req->int2 = (mode_t)mode;
906	req->offs = dev;	1490	req->offs = dev;
		1491	req_set_path1 (req, pathname);
907		1492
908	REQ_SEND;	1493	REQ_SEND;
909	}	1494	}
910		1495
911	void	1496	void
		1497	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1498	ALIAS:
		1499	aio_mtouch = EIO_MTOUCH
		1500	aio_msync = EIO_MSYNC
		1501	PPCODE:
		1502	{
		1503	STRLEN svlen;
		1504	char *svptr = SvPVbyte (data, svlen);
		1505	UV len = SvUV (length);
		1506
		1507	if (offset < 0)
		1508	offset += svlen;
		1509
		1510	if (offset < 0 || offset > svlen)
		1511	croak ("offset outside of scalar");
		1512
		1513	if (!SvOK (length) || len + offset > svlen)
		1514	len = svlen - offset;
		1515
		1516	{
		1517	dREQ;
		1518
		1519	req->type = ix;
		1520	req->sv2 = SvREFCNT_inc (data);
		1521	req->ptr2 = (char *)svptr + offset;
		1522	req->size = len;
		1523	req->int1 = flags;
		1524
		1525	REQ_SEND;
		1526	}
		1527	}
		1528
		1529	void
		1530	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1531	PPCODE:
		1532	{
		1533	STRLEN svlen;
		1534	char *svptr = SvPVbyte (data, svlen);
		1535	UV len = SvUV (length);
		1536
		1537	if (offset < 0)
		1538	offset += svlen;
		1539
		1540	if (offset < 0 || offset > svlen)
		1541	croak ("offset outside of scalar");
		1542
		1543	if (!SvOK (length) || len + offset > svlen)
		1544	len = svlen - offset;
		1545
		1546	{
		1547	dREQ;
		1548
		1549	req->type = EIO_MLOCK;
		1550	req->sv2 = SvREFCNT_inc (data);
		1551	req->ptr2 = (char *)svptr + offset;
		1552	req->size = len;
		1553
		1554	REQ_SEND;
		1555	}
		1556	}
		1557
		1558	void
		1559	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1560	PPCODE:
		1561	{
		1562	dREQ;
		1563
		1564	req->type = EIO_MLOCKALL;
		1565	req->int1 = flags;
		1566
		1567	REQ_SEND;
		1568	}
		1569
		1570	void
		1571	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1572	PPCODE:
		1573	{
		1574	int fd = s_fileno_croak (fh, 0);
		1575	dREQ;
		1576
		1577	req->type = EIO_CUSTOM;
		1578	req->sv1 = newSVsv (fh);
		1579	req->int1 = fd;
		1580
		1581	req->feed = fiemap;
		1582	#if HAVE_FIEMAP
		1583	/* keep our fingers crossed that the next two types are 64 bit */
		1584	req->offs = start;
		1585	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1586	req->int2 = flags;
		1587	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1588	#endif
		1589
		1590	REQ_SEND;
		1591	}
		1592
		1593	void
912	aio_busy (double delay, SV *callback=&PL_sv_undef)	1594	aio_busy (double delay, SV *callback=&PL_sv_undef)
913	PPCODE:	1595	PPCODE:
914	{	1596	{
915	dREQ;	1597	dREQ;
916		1598
…		…
920	REQ_SEND;	1602	REQ_SEND;
921	}	1603	}
922		1604
923	void	1605	void
924	aio_group (SV *callback=&PL_sv_undef)	1606	aio_group (SV *callback=&PL_sv_undef)
925	PROTOTYPE: ;$
926	PPCODE:	1607	PPCODE:
927	{	1608	{
928	dREQ;	1609	dREQ;
929		1610
930	req->type = EIO_GROUP;	1611	req->type = EIO_GROUP;
931		1612
932	req_submit (req);	1613	req_submit (req);
933	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1614	XPUSHs (req_sv (req, aio_grp_stash));
934	}	1615	}
935		1616
936	void	1617	void
937	aio_nop (SV *callback=&PL_sv_undef)	1618	aio_nop (SV *callback=&PL_sv_undef)
938	ALIAS:	1619	ALIAS:
…		…
947	REQ_SEND;	1628	REQ_SEND;
948	}	1629	}
949		1630
950	int	1631	int
951	aioreq_pri (int pri = 0)	1632	aioreq_pri (int pri = 0)
952	PROTOTYPE: ;$
953	CODE:	1633	CODE:
954	RETVAL = next_pri;	1634	RETVAL = next_pri;
955	if (items > 0)	1635	if (items > 0)
956	{	1636	{
957	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1637	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
969	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1649	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
970	next_pri = nice;	1650	next_pri = nice;
971		1651
972	void	1652	void
973	flush ()	1653	flush ()
974	PROTOTYPE:
975	CODE:	1654	CODE:
976	while (eio_nreqs ())	1655	while (eio_nreqs ())
977	{	1656	{
978	poll_wait ();	1657	poll_wait ();
979	poll_cb ();	1658	poll_cb ();
980	}	1659	}
981		1660
982	int	1661	int
983	poll()	1662	poll ()
984	PROTOTYPE:
985	CODE:	1663	CODE:
986	poll_wait ();	1664	poll_wait ();
987	RETVAL = poll_cb ();	1665	RETVAL = poll_cb ();
988	OUTPUT:	1666	OUTPUT:
989	RETVAL	1667	RETVAL
990		1668
991	int	1669	int
992	poll_fileno()	1670	poll_fileno ()
993	PROTOTYPE:
994	CODE:	1671	CODE:
995	RETVAL = respipe [0];	1672	RETVAL = s_epipe_fd (&respipe);
996	OUTPUT:	1673	OUTPUT:
997	RETVAL	1674	RETVAL
998		1675
999	int	1676	int
1000	poll_cb(...)	1677	poll_cb (...)
1001	PROTOTYPE:	1678	PROTOTYPE:
1002	CODE:	1679	CODE:
1003	RETVAL = poll_cb ();	1680	RETVAL = poll_cb ();
1004	OUTPUT:	1681	OUTPUT:
1005	RETVAL	1682	RETVAL
1006		1683
1007	void	1684	void
1008	poll_wait()	1685	poll_wait ()
1009	PROTOTYPE:
1010	CODE:	1686	CODE:
1011	poll_wait ();	1687	poll_wait ();
1012		1688
1013	int	1689	int
1014	nreqs()	1690	nreqs ()
1015	PROTOTYPE:
1016	CODE:	1691	CODE:
1017	RETVAL = eio_nreqs ();	1692	RETVAL = eio_nreqs ();
1018	OUTPUT:	1693	OUTPUT:
1019	RETVAL	1694	RETVAL
1020		1695
1021	int	1696	int
1022	nready()	1697	nready ()
1023	PROTOTYPE:
1024	CODE:	1698	CODE:
1025	RETVAL = eio_nready ();	1699	RETVAL = eio_nready ();
1026	OUTPUT:	1700	OUTPUT:
1027	RETVAL	1701	RETVAL
1028		1702
1029	int	1703	int
1030	npending()	1704	npending ()
1031	PROTOTYPE:
1032	CODE:	1705	CODE:
1033	RETVAL = eio_npending ();	1706	RETVAL = eio_npending ();
1034	OUTPUT:	1707	OUTPUT:
1035	RETVAL	1708	RETVAL
1036		1709
1037	int	1710	int
1038	nthreads()	1711	nthreads ()
1039	PROTOTYPE:
1040	CODE:	1712	CODE:
1041	RETVAL = eio_nthreads ();	1713	RETVAL = eio_nthreads ();
1042	OUTPUT:	1714	OUTPUT:
1043	RETVAL	1715	RETVAL
1044		1716
		1717	int
		1718	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1719	CODE:
		1720	RETVAL = posix_fadvise (fh, offset, length, advice);
		1721	OUTPUT:
		1722	RETVAL
		1723
		1724	IV
		1725	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1726	CODE:
		1727	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1728	OUTPUT:
		1729	RETVAL
		1730
		1731	void
		1732	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1733	PPCODE:
		1734	sv_unmagic (scalar, MMAP_MAGIC);
		1735	{
		1736	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1737	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1738	if (addr == (void *)-1)
		1739	XSRETURN_NO;
		1740
		1741	sv_force_normal (scalar);
		1742
		1743	/* we store the length in mg_obj, as namlen is I32 :/ */
		1744	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1745	->mg_obj = (SV *)length;
		1746
		1747	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1748
		1749	if (!(prot & PROT_WRITE))
		1750	SvREADONLY_on (scalar);
		1751
		1752	if (SvLEN (scalar))
		1753	Safefree (SvPVX (scalar));
		1754
		1755	SvPVX (scalar) = (char *)addr;
		1756	SvCUR_set (scalar, length);
		1757	SvLEN_set (scalar, 0);
		1758	SvPOK_only (scalar);
		1759
		1760	XSRETURN_YES;
		1761	}
		1762
		1763	void
		1764	munmap (SV *scalar)
		1765	CODE:
		1766	sv_unmagic (scalar, MMAP_MAGIC);
		1767
		1768	int
		1769	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1770	ALIAS:
		1771	mprotect = 1
		1772	CODE:
		1773	{
		1774	STRLEN svlen;
		1775	void *addr = SvPVbyte (scalar, svlen);
		1776	size_t len = SvUV (length);
		1777
		1778	if (offset < 0)
		1779	offset += svlen;
		1780
		1781	if (offset < 0 || offset > svlen)
		1782	croak ("offset outside of scalar");
		1783
		1784	if (!SvOK (length) || len + offset > svlen)
		1785	len = svlen - offset;
		1786
		1787	addr = (void *)(((intptr_t)addr) + offset);
		1788	eio_page_align (&addr, &len);
		1789
		1790	switch (ix)
		1791	{
		1792	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1793	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1794	}
		1795	}
		1796	OUTPUT:
		1797	RETVAL
		1798
		1799	int
		1800	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1801	CODE:
		1802	{
		1803	STRLEN svlen;
		1804	void *addr = SvPVbyte (scalar, svlen);
		1805	size_t len = SvUV (length);
		1806
		1807	if (offset < 0)
		1808	offset += svlen;
		1809
		1810	if (offset < 0 || offset > svlen)
		1811	croak ("offset outside of scalar");
		1812
		1813	if (!SvOK (length) || len + offset > svlen)
		1814	len = svlen - offset;
		1815
		1816	addr = (void *)(((intptr_t)addr) + offset);
		1817	eio_page_align (&addr, &len);
		1818	#if _POSIX_MEMLOCK_RANGE
		1819	RETVAL = munlock (addr, len);
		1820	#else
		1821	RETVAL = EIO_ENOSYS ();
		1822	#endif
		1823	}
		1824	OUTPUT:
		1825	RETVAL
		1826
		1827	int
		1828	munlockall ()
		1829	CODE:
		1830	#if _POSIX_MEMLOCK
		1831	munlockall ();
		1832	#else
		1833	RETVAL = EIO_ENOSYS ();
		1834	#endif
		1835	OUTPUT:
		1836	RETVAL
		1837
		1838	int
		1839	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1840	CODE:
		1841	{
		1842	#if HAVE_LINUX_SPLICE
		1843	loff_t off_in_, off_out_;
		1844	RETVAL = splice (
		1845	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1846	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1847	length, flags
		1848	);
		1849	#else
		1850	RETVAL = EIO_ENOSYS ();
		1851	#endif
		1852	}
		1853	OUTPUT:
		1854	RETVAL
		1855
		1856	int
		1857	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1858	CODE:
		1859	#if HAVE_LINUX_SPLICE
		1860	RETVAL = tee (rfh, wfh, length, flags);
		1861	#else
		1862	RETVAL = EIO_ENOSYS ();
		1863	#endif
		1864	OUTPUT:
		1865	RETVAL
		1866
1045	void _on_next_submit (SV *cb)	1867	void _on_next_submit (SV *cb)
1046	CODE:	1868	CODE:
1047	SvREFCNT_dec (on_next_submit);	1869	SvREFCNT_dec (on_next_submit);
1048	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1870	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1049		1871
1050	PROTOTYPES: DISABLE	1872	PROTOTYPES: DISABLE
1051		1873
		1874	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1875
		1876	BOOT:
		1877	{
		1878	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1879	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1880	}
		1881
		1882	void
		1883	DESTROY (SV *self)
		1884	CODE:
		1885	{
		1886	aio_wd wd = SvAIO_WD (self);
		1887	#if HAVE_AT
		1888	{
		1889	SV *callback = &PL_sv_undef;
		1890	dREQ; /* clobbers next_pri :/ */
		1891	next_pri = req->pri; /* restore next_pri */
		1892	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1893	req->type = EIO_WD_CLOSE;
		1894	req->wd = wd;
		1895	REQ_SEND;
		1896	}
		1897	#else
		1898	eio_wd_close_sync (wd);
		1899	#endif
		1900	}
		1901
1052	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1902	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1053		1903
1054	void	1904	void
1055	cancel (aio_req_ornot req)	1905	cancel (aio_req_ornot req)
1056	CODE:	1906	CODE:
…		…
1063	if (GIMME_V != G_VOID)	1913	if (GIMME_V != G_VOID)
1064	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	1914	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1065		1915
1066	if (items > 1)	1916	if (items > 1)
1067	{	1917	{
1068	SV *cb_cv = get_cb (callback);	1918	SV *cb_cv =get_cb (callback);
1069		1919
1070	SvREFCNT_dec (req->callback);	1920	SvREFCNT_dec (req->callback);
1071	req->callback = SvREFCNT_inc (cb_cv);	1921	req->callback = SvREFCNT_inc (cb_cv);
1072	}	1922	}
1073	}	1923	}
…		…
1110	AV *av;	1960	AV *av;
1111		1961
1112	grp->errorno = errno;	1962	grp->errorno = errno;
1113		1963
1114	av = newAV ();	1964	av = newAV ();
		1965	av_extend (av, items - 1);
1115		1966
1116	for (i = 1; i < items; ++i )	1967	for (i = 1; i < items; ++i )
1117	av_push (av, newSVsv (ST (i)));	1968	av_push (av, newSVsv (ST (i)));
1118		1969
1119	SvREFCNT_dec (grp->sv1);	1970	SvREFCNT_dec (grp->sv1);
…		…
1133	void	1984	void
1134	feed (aio_req grp, SV *callback=&PL_sv_undef)	1985	feed (aio_req grp, SV *callback=&PL_sv_undef)
1135	CODE:	1986	CODE:
1136	{	1987	{
1137	SvREFCNT_dec (grp->sv2);	1988	SvREFCNT_dec (grp->sv2);
1138	grp->sv2 = newSVsv (callback);	1989	grp->sv2 = newSVsv (callback);
		1990	grp->feed = aio_grp_feed;
1139		1991
1140	if (grp->int2 <= 0)	1992	if (grp->int2 <= 0)
1141	grp->int2 = 2;	1993	grp->int2 = 2;
1142		1994
1143	eio_grp_limit (grp, grp->int2);	1995	eio_grp_limit (grp, grp->int2);

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