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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.119 by root, Sun May 11 19:11:05 2008 UTC vs.
Revision 1.225 by root, Sat Dec 29 09:35:39 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		35
		36	/* perl stupidly overrides readdir and maybe others */
		37	/* with thread-unsafe versions, imagine that :( */
		38	#undef readdir
		39	#undef opendir
		40	#undef closedir
		41
21	#ifdef _WIN32	42	#ifdef _WIN32
22		43
23	# define EIO_STRUCT_DIRENT Direntry_t
24	# undef malloc
25	# undef free
26
27	// perl overrides all those nice win32 functions	44	// perl overrides all those nice libc functions
		45
		46	#undef malloc
		47	#undef free
28	# undef open	48	#undef open
29	# undef read	49	#undef read
30	# undef write	50	#undef write
31	# undef send	51	#undef send
32	# undef recv	52	#undef recv
33	# undef stat	53	#undef stat
		54	#undef lstat
34	# undef fstat	55	#undef fstat
35	# define lstat stat
36	# undef truncate	56	#undef truncate
37	# undef ftruncate	57	#undef ftruncate
38	# undef open	58	#undef open
		59	#undef link
39	# undef close	60	#undef close
40	# undef unlink	61	#undef unlink
		62	#undef mkdir
41	# undef rmdir	63	#undef rmdir
42	# undef rename	64	#undef rename
43	# undef lseek	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
44		75
45	# define chown(a,b,c) (errno = ENOSYS, -1)	76	#define EIO_STRUCT_STAT struct _stati64
46	# define fchown(a,b,c) (errno = ENOSYS, -1)	77	#define EIO_STRUCT_STATI64
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		78
59	#else	79	#else
60		80
61	# include <sys/time.h>	81	#include <sys/time.h>
62	# include <sys/select.h>	82	#include <sys/select.h>
63	# include <unistd.h>	83	#include <unistd.h>
64	# include <utime.h>	84	#include <utime.h>
65	# include <signal.h>	85	#include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent
67		86
68	#endif
69
70	#define EIO_STRUCT_STAT Stat_t	87	#define EIO_STRUCT_STAT Stat_t
71		88
72	/* use NV for 32 bit perls as it allows larger offsets */	89	#endif
73	#if IVSIZE >= 8	90
74	# define SvVAL64 SvIV	91	/*****************************************************************************/
		92
		93	#if __GNUC__ >= 3
		94	# define expect(expr,value) __builtin_expect ((expr),(value))
75	#else	95	#else
76	# define SvVAL64 SvNV	96	# define expect(expr,value) (expr)
77	#endif	97	#endif
78		98
79	static HV *stash;	99	#define expect_false(expr) expect ((expr) != 0, 0)
		100	#define expect_true(expr) expect ((expr) != 0, 1)
		101
		102	/*****************************************************************************/
		103
80	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 */
81		107
82	#define AIO_REQ_KLASS "IO::AIO::REQ"	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
83	#define AIO_GRP_KLASS "IO::AIO::GRP"
84		109
85	#define EIO_COMMON \	110	#define EIO_REQ_MEMBERS \
86	SV *callback; \	111	SV *callback; \
87	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
88	STRLEN stroffset; \	114	STRLEN stroffset; \
89	SV *self	115	SV *self;
90		116
		117	#define EIO_NO_WRAPPERS 1
		118
		119	#include "libeio/config.h"
91	#include "libeio/eio.h"	120	#include "libeio/eio.h"
92		121
93	static int req_invoke (eio_req *req);	122	static int req_invoke (eio_req *req);
94	#define EIO_FINISH(req) req_invoke (req)	123	#define EIO_FINISH(req) req_invoke (req)
95	static void aio_grp_feed (eio_req *grp);
96	#define EIO_FEED(req) aio_grp_feed (req)
97	static void req_destroy (eio_req *grp);	124	static void req_destroy (eio_req *grp);
98	#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	#if PAGESIZE <= 0
		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) < 0)
		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) < 0)
		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	/*****************************************************************************/
99		258
100	enum {	259	enum {
101	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	260	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
102	};	261	};
103		262
104	#include "libeio/eio.c"
105
106	typedef eio_req *aio_req;	263	typedef eio_req *aio_req;
107	typedef eio_req *aio_req_ornot;	264	typedef eio_req *aio_req_ornot;
		265	typedef eio_wd aio_wd;
108		266
109	static SV *on_next_submit;	267	static SV *on_next_submit;
110	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	268	static int next_pri = EIO_PRI_DEFAULT;
111	static int max_outstanding;	269	static int max_outstanding;
112		270
113	static int respipe_osf [2], respipe [2] = { -1, -1 };	271	static s_epipe respipe;
114		272
115	static void req_destroy (aio_req req);	273	static void req_destroy (aio_req req);
116	static void req_cancel (aio_req req);	274	static void req_cancel (aio_req req);
117		275
118	static void want_poll (void)	276	static void
		277	want_poll (void)
119	{	278	{
120	/* write a dummy byte to the pipe so fh becomes ready */	279	/* write a dummy byte to the pipe so fh becomes ready */
121	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	280	s_epipe_signal (&respipe);
122	}	281	}
123		282
124	static void done_poll (void)	283	static void
		284	done_poll (void)
125	{	285	{
126	/* read any signals sent by the worker threads */	286	/* read any signals sent by the worker threads */
127	char buf [4];	287	s_epipe_drain (&respipe);
128	while (respipe_read (respipe [0], buf, 4) == 4)
129	;
130	}	288	}
131		289
132	/* must be called at most once */	290	/* must be called at most once */
133	static SV *req_sv (aio_req req, const char *klass)	291	static SV *
		292	req_sv (aio_req req, HV *stash)
134	{	293	{
135	if (!req->self)	294	if (!req->self)
136	{	295	{
137	req->self = (SV *)newHV ();	296	req->self = (SV *)newHV ();
138	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	297	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
139	}	298	}
140		299
141	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	300	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
142	}	301	}
143		302
144	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)
145	{	311	{
146	MAGIC *mg;	312	MAGIC *mg;
147		313
148	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")))
149	croak ("object of class " AIO_REQ_KLASS " expected");	319	croak ("object of class IO::AIO::REQ expected");
150		320
151	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	321	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
152		322
153	return mg ? (aio_req)mg->mg_ptr : 0;	323	return mg ? (aio_req)mg->mg_ptr : 0;
154	}	324	}
155		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
156	static void aio_grp_feed (aio_req grp)	338	aio_grp_feed (aio_req grp)
157	{	339	{
158	if (grp->sv2 && SvOK (grp->sv2))	340	if (grp->sv2 && SvOK (grp->sv2))
159	{	341	{
160	dSP;	342	dSP;
161		343
162	ENTER;	344	ENTER;
163	SAVETMPS;	345	SAVETMPS;
164	PUSHMARK (SP);	346	PUSHMARK (SP);
165	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	347	XPUSHs (req_sv (grp, aio_grp_stash));
166	PUTBACK;	348	PUTBACK;
167	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	349	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
168	SPAGAIN;	350	SPAGAIN;
169	FREETMPS;	351	FREETMPS;
170	LEAVE;	352	LEAVE;
171	}	353	}
172	}	354	}
173		355
		356	static void
174	static void req_submit (eio_req *req)	357	req_submit (eio_req *req)
175	{	358	{
176	eio_submit (req);	359	eio_submit (req);
177		360
178	if (on_next_submit)	361	if (expect_false (on_next_submit))
179	{	362	{
180	dSP;	363	dSP;
181	SV *cb = sv_2mortal (on_next_submit);	364	SV *cb = sv_2mortal (on_next_submit);
182		365
183	on_next_submit = 0;	366	on_next_submit = 0;
…		…
186	PUTBACK;	369	PUTBACK;
187	call_sv (cb, G_DISCARD | G_EVAL);	370	call_sv (cb, G_DISCARD | G_EVAL);
188	}	371	}
189	}	372	}
190		373
		374	static int
191	static int req_invoke (eio_req *req)	375	req_invoke (eio_req *req)
192	{	376	{
193	dSP;
194
195	if (req->flags & FLAG_SV2_RO_OFF)	377	if (req->flags & FLAG_SV2_RO_OFF)
196	SvREADONLY_off (req->sv2);	378	SvREADONLY_off (req->sv2);
197		379
198	if (!EIO_CANCELLED (req) && SvOK (req->callback))	380	if (!EIO_CANCELLED (req) && req->callback)
199	{	381	{
		382	dSP;
		383	static SV *sv_result_cache; /* caches the result integer SV */
		384	SV *sv_result;
		385
200	ENTER;	386	ENTER;
201	SAVETMPS;	387	SAVETMPS;
202	PUSHMARK (SP);	388	PUSHMARK (SP);
203	EXTEND (SP, 1);	389	EXTEND (SP, 1);
204		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
205	switch (req->type)	404	switch (req->type)
206	{	405	{
		406	case EIO_WD_OPEN:
		407	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		408	break;
		409
207	case EIO_READDIR:	410	case EIO_READDIR:
208	{	411	{
209	SV *rv = &PL_sv_undef;	412	SV *rv = &PL_sv_undef;
210		413
211	if (req->result >= 0)	414	if (req->result >= 0)
212	{	415	{
213	int i;	416	int i;
214	char *buf = req->ptr2;	417	char *names = (char *)req->ptr2;
		418	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
215	AV *av = newAV ();	419	AV *av = newAV ();
216		420
217	av_extend (av, req->result - 1);	421	av_extend (av, req->result - 1);
218		422
219	for (i = 0; i < req->result; ++i)	423	for (i = 0; i < req->result; ++i)
220	{	424	{
221	SV *sv = newSVpv (buf, 0);	425	if (req->int1 & EIO_READDIR_DENTS)
		426	{
		427	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
222		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
223	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);
224	buf += SvCUR (sv) + 1;	457	names += SvCUR (name) + 1;
		458	}
225	}	459	}
226		460
227	rv = sv_2mortal (newRV_noinc ((SV *)av));	461	rv = sv_2mortal (newRV_noinc ((SV *)av));
228	}	462	}
229		463
230	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))));
231	}	468	}
232	break;	469	break;
233		470
234	case EIO_OPEN:	471	case EIO_OPEN:
235	{	472	{
…		…
241	GV *gv = (GV *)sv_newmortal ();	478	GV *gv = (GV *)sv_newmortal ();
242	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	479	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
243	char sym [64];	480	char sym [64];
244	int symlen;	481	int symlen;
245		482
246	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	483	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
247	gv_init (gv, stash, sym, symlen, 0);	484	gv_init (gv, aio_stash, sym, symlen, 0);
248		485
249	symlen = snprintf (	486	symlen = snprintf (
250	sym,	487	sym,
251	sizeof (sym),	488	sizeof (sym),
252	"%s&=%d",	489	"%s&=%d",
253	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	490	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
254	req->result	491	(int)req->result
255	);	492	);
256		493
257	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	494	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
258	fh = (SV *)gv;	495	fh = (SV *)gv;
259	}	496	}
260		497
261	PUSHs (fh);	498	PUSHs (fh);
262	}	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	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		513	* chooses to make it a struct.
		514	*/
		515	unsigned long fsid = 0;
		516	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
		517
		518	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		519
		520	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		521	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		522	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		523	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		524	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		525	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		526	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		527	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		528	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		529	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		530	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		531	}
		532	#endif
		533
		534	PUSHs (rv);
		535	}
		536
263	break;	537	break;
264		538
265	case EIO_GROUP:	539	case EIO_GROUP:
266	req->int1 = 2; /* mark group as finished */	540	req->int1 = 2; /* mark group as finished */
267		541
…		…
279	case EIO_NOP:	553	case EIO_NOP:
280	case EIO_BUSY:	554	case EIO_BUSY:
281	break;	555	break;
282		556
283	case EIO_READLINK:	557	case EIO_READLINK:
		558	case EIO_REALPATH:
284	if (req->result > 0)	559	if (req->result > 0)
285	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	560	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
286	break;	561	break;
287		562
288	case EIO_STAT:	563	case EIO_STAT:
289	case EIO_LSTAT:	564	case EIO_LSTAT:
290	case EIO_FSTAT:	565	case EIO_FSTAT:
291	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	566	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		567
292	PL_laststatval = req->result;	568	if (!(PL_laststatval = req->result))
		569	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
293	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	570	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
294	PUSHs (sv_2mortal (newSViv (req->result)));	571
		572	PUSHs (sv_result);
295	break;	573	break;
296		574
		575	case EIO_SEEK:
		576	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		577	break;
		578
297	case EIO_READ:	579	case EIO_READ:
		580	{
298	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	581	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
299	*SvEND (req->sv2) = 0;	582	*SvEND (req->sv2) = 0;
300	PUSHs (sv_2mortal (newSViv (req->result)));	583	SvPOK_only (req->sv2);
		584	SvSETMAGIC (req->sv2);
		585	PUSHs (sv_result);
		586	}
301	break;	587	break;
302		588
303	case EIO_DUP2:	589	case EIO_CUSTOM:
		590	if (req->feed == fiemap)
		591	{
		592	#if HAVE_FIEMAP
		593	if (!req->result)
		594	{
		595	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		596
		597	if (fiemap->fm_extent_count)
		598	{
		599	AV *av = newAV ();
		600	int i;
		601
		602	while (fiemap->fm_mapped_extents)
		603	{
		604	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		605	AV *ext_av = newAV ();
		606
		607	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		608	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		609	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		610	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		611
		612	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		613	}
		614
		615	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		616	}
		617	else
		618	{
		619	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		620	PUSHs (sv_result);
		621	}
		622	}
		623	#endif
		624	}
		625	else
		626	PUSHs (sv_result);
		627	break;
		628
		629	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
304	if (req->result > 0)	630	if (req->result > 0)
305	req->result = 0;	631	SvIV_set (sv_result, 0);
306	/* FALLTHROUGH */	632	/* FALLTHROUGH */
307		633
308	default:	634	default:
309	PUSHs (sv_2mortal (newSViv (req->result)));	635	PUSHs (sv_result);
310	break;	636	break;
311	}	637	}
312		638
313	errno = req->errorno;	639	errno = req->errorno;
314		640
315	PUTBACK;	641	PUTBACK;
316	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	642	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
317	SPAGAIN;	643	SPAGAIN;
318		644
		645	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		646	SvREFCNT_dec (sv_result);
		647	else
		648	sv_result_cache = sv_result;
		649
319	FREETMPS;	650	FREETMPS;
320	LEAVE;	651	LEAVE;
321		652
322	PUTBACK;	653	PUTBACK;
323	}	654	}
324		655
325	return !!SvTRUE (ERRSV);	656	return !!SvTRUE (ERRSV);
326	}	657	}
327		658
		659	static void
328	static void req_destroy (aio_req req)	660	req_destroy (aio_req req)
329	{	661	{
330	if (req->self)	662	if (req->self)
331	{	663	{
332	sv_unmagic (req->self, PERL_MAGIC_ext);	664	sv_unmagic (req->self, PERL_MAGIC_ext);
333	SvREFCNT_dec (req->self);	665	SvREFCNT_dec (req->self);
334	}	666	}
335		667
336	SvREFCNT_dec (req->sv1);	668	SvREFCNT_dec (req->sv1);
337	SvREFCNT_dec (req->sv2);	669	SvREFCNT_dec (req->sv2);
		670	SvREFCNT_dec (req->sv3);
		671	SvREFCNT_dec (req->sv4);
338	SvREFCNT_dec (req->callback);	672	SvREFCNT_dec (req->callback);
339		673
340	Safefree (req);	674	free (req);
341	}	675	}
342		676
		677	static void
343	static void req_cancel_subs (aio_req grp)	678	req_cancel_subs (aio_req grp)
344	{	679	{
345	aio_req sub;
346
347	if (grp->type != EIO_GROUP)	680	if (grp->type != EIO_GROUP)
348	return;	681	return;
349		682
350	SvREFCNT_dec (grp->sv2);	683	SvREFCNT_dec (grp->sv2);
351	grp->sv2 = 0;	684	grp->sv2 = 0;
352		685
353	eio_grp_cancel (grp);	686	eio_grp_cancel (grp);
354	}	687	}
355		688
356	#ifdef USE_SOCKETS_AS_HANDLES	689	static void ecb_cold
357	# define TO_SOCKET(x) (win32_get_osfhandle (x))	690	create_respipe (void)
358	#else	691	{
359	# define TO_SOCKET(x) (x)	692	if (s_epipe_renew (&respipe))
360	#endif	693	croak ("IO::AIO: unable to initialize result pipe");
		694	}
361		695
362	static void	696	static void
363	create_respipe (void)	697	poll_wait (void)
364	{	698	{
365	int old_readfd = respipe [0];
366
367	if (respipe [1] >= 0)
368	respipe_close (TO_SOCKET (respipe [1]));
369
370	#ifdef _WIN32
371	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
372	#else
373	if (pipe (respipe))
374	#endif
375	croak ("unable to initialize result pipe");
376
377	if (old_readfd >= 0)
378	{
379	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
380	croak ("unable to initialize result pipe(2)");
381
382	respipe_close (respipe [0]);
383	respipe [0] = old_readfd;
384	}
385
386	#ifdef _WIN32
387	int arg = 1;
388	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
389	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
390	#else
391	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
392	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
393	#endif
394	croak ("unable to initialize result pipe(3)");
395
396	respipe_osf [0] = TO_SOCKET (respipe [0]);
397	respipe_osf [1] = TO_SOCKET (respipe [1]);
398	}
399
400	static void poll_wait (void)
401	{
402	fd_set rfd;
403
404	while (eio_nreqs ())	699	while (eio_nreqs ())
405	{	700	{
406	int size;	701	int size;
407		702
408	X_LOCK (reslock);	703	X_LOCK (reslock);
…		…
410	X_UNLOCK (reslock);	705	X_UNLOCK (reslock);
411		706
412	if (size)	707	if (size)
413	return;	708	return;
414		709
415	maybe_start_thread ();	710	etp_maybe_start_thread ();
416		711
417	FD_ZERO (&rfd);	712	s_epipe_wait (&respipe);
418	FD_SET (respipe [0], &rfd);
419
420	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
421	}	713	}
422	}	714	}
423		715
424	static int poll_cb (void)	716	static int
		717	poll_cb (void)
425	{	718	{
426	int res;	719	for (;;)
427
428	do
429	{	720	{
430	res = eio_poll ();	721	int res = eio_poll ();
431		722
432	if (res > 0)	723	if (res > 0)
433	croak (0);	724	croak (0);
		725
		726	if (!max_outstanding || max_outstanding > eio_nreqs ())
		727	return res;
		728
		729	poll_wait ();
434	}	730	}
435	while (max_outstanding && max_outstanding <= eio_nreqs ());
436
437	return res;
438	}	731	}
439		732
440	static void atfork_child (void)	733	static void ecb_cold
		734	reinit (void)
441	{	735	{
442	create_respipe ();	736	create_respipe ();
		737
		738	if (eio_init (want_poll, done_poll) < 0)
		739	croak ("IO::AIO: unable to initialise eio library");
		740	}
		741
		742	/*****************************************************************************/
		743
		744	#if !_POSIX_MAPPED_FILES
		745	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		746	# define munmap(addr,length) EIO_ENOSYS ()
		747	#endif
		748
		749	#if !_POSIX_MEMORY_PROTECTION
		750	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		751	# define PROT_NONE 0
		752	# define PROT_WRITE 0
		753	# define MAP_PRIVATE 0
		754	# define MAP_SHARED 0
		755	# define MAP_FIXED 0
		756	#endif
		757
		758	#define MMAP_MAGIC PERL_MAGIC_ext
		759
		760	static int ecb_cold
		761	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		762	{
		763	int old_errno = errno;
		764	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		765	errno = old_errno;
		766
		767	mg->mg_obj = 0; /* just in case */
		768
		769	SvREADONLY_off (sv);
		770
		771	if (SvPVX (sv) != mg->mg_ptr)
		772	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		773
		774	SvCUR_set (sv, 0);
		775	SvPVX (sv) = 0;
		776	SvOK_off (sv);
		777
		778	return 0;
		779	}
		780
		781	static MGVTBL mmap_vtbl = {
		782	0, 0, 0, 0, mmap_free
		783	};
		784
		785	/*****************************************************************************/
		786
		787	static SV *
		788	get_cb (SV *cb_sv)
		789	{
		790	SvGETMAGIC (cb_sv);
		791	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		792	}
		793
		794	static aio_req ecb_noinline
		795	dreq (SV *callback)
		796	{
		797	SV *cb_cv;
		798	aio_req req;
		799	int req_pri = next_pri;
		800	next_pri = EIO_PRI_DEFAULT;
		801
		802	cb_cv = get_cb (callback);
		803
		804	req = calloc (sizeof (*req), 1);
		805	if (!req)
		806	croak ("out of memory during eio_req allocation");
		807
		808	req->callback = SvREFCNT_inc (cb_cv);
		809	req->pri = req_pri;
		810
		811	return req;
443	}	812	}
444		813
445	#define dREQ \	814	#define dREQ \
446	aio_req req; \	815	aio_req req = dreq (callback); \
447	int req_pri = next_pri; \
448	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \
449	\
450	if (SvOK (callback) && !SvROK (callback)) \
451	croak ("callback must be undef or of reference type"); \
452	\
453	Newz (0, req, 1, eio_req); \
454	if (!req) \
455	croak ("out of memory during eio_req allocation"); \
456	\
457	req->callback = newSVsv (callback); \
458	req->pri = req_pri
459		816
460	#define REQ_SEND \	817	#define REQ_SEND \
		818	PUTBACK; \
461	req_submit (req); \	819	req_submit (req); \
		820	SPAGAIN; \
462	\	821	\
463	if (GIMME_V != G_VOID) \	822	if (GIMME_V != G_VOID) \
464	XPUSHs (req_sv (req, AIO_REQ_KLASS));	823	XPUSHs (req_sv (req, aio_req_stash));
465		824
		825	ecb_inline void
		826	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		827	{
		828	if (expect_false (SvROK (path)))
		829	{
		830	SV *rv = SvRV (path);
		831	SV *wdob;
		832
		833	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		834	{
		835	path = AvARRAY (rv)[1];
		836	wdob = AvARRAY (rv)[0];
		837
		838	if (SvOK (wdob))
		839	{
		840	*wd = SvAIO_WD (wdob);
		841	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		842	}
		843	else
		844	*wd = EIO_INVALID_WD;
		845	}
		846	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		847	{
		848	*wd = (aio_wd)(long)SvIVX (rv);
		849	*wdsv = SvREFCNT_inc_NN (rv);
		850	*ptr = ".";
		851	return; /* path set to "." */
		852	}
		853	else
		854	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		855	}
		856
		857	*pathsv = newSVsv (path);
		858	*ptr = SvPVbyte_nolen (*pathsv);
		859	}
		860
		861	static void ecb_noinline
		862	req_set_path1 (aio_req req, SV *path)
		863	{
		864	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		865	}
		866
		867	static void ecb_noinline
		868	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		869	{
		870	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		871
		872	switch (SvTYPE (rv))
		873	{
		874	case SVt_PVIO:
		875	case SVt_PVLV:
		876	case SVt_PVGV:
		877	req->type = type_fh;
		878	req->sv1 = newSVsv (fh_or_path);
		879	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		880	break;
		881
		882	default:
		883	req->type = type_path;
		884	req_set_path1 (req, fh_or_path);
		885	break;
		886	}
		887	}
		888
		889	XS(boot_IO__AIO) ecb_cold;
		890
466	MODULE = IO::AIO PACKAGE = IO::AIO	891	MODULE = IO::AIO PACKAGE = IO::AIO
467		892
468	PROTOTYPES: ENABLE	893	PROTOTYPES: ENABLE
469		894
470	BOOT:	895	BOOT:
471	{	896	{
		897	static const struct {
		898	const char *name;
		899	IV iv;
		900	} *civ, const_iv[] = {
		901	# define const_niv(name, value) { # name, (IV) value },
		902	# define const_iv(name) { # name, (IV) name },
		903	# define const_eio(name) { # name, (IV) EIO_ ## name },
		904
		905	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		906
		907	const_iv (ENOSYS)
		908	const_iv (EXDEV)
		909	const_iv (EBADR)
		910
		911	const_iv (O_RDONLY)
		912	const_iv (O_WRONLY)
		913	const_iv (O_RDWR)
		914	const_iv (O_CREAT)
		915	const_iv (O_TRUNC)
		916	const_iv (O_EXCL)
		917	const_iv (O_APPEND)
		918
		919	const_iv (O_ASYNC)
		920	const_iv (O_DIRECT)
		921	const_iv (O_NOATIME)
		922
		923	const_iv (O_CLOEXEC)
		924	const_iv (O_NOCTTY)
		925	const_iv (O_NOFOLLOW)
		926	const_iv (O_NONBLOCK)
		927	const_iv (O_EXEC)
		928	const_iv (O_SEARCH)
		929	const_iv (O_DIRECTORY)
		930	const_iv (O_DSYNC)
		931	const_iv (O_RSYNC)
		932	const_iv (O_SYNC)
		933	const_iv (O_TTY_INIT)
		934
		935	const_iv (S_IFIFO)
		936	const_iv (S_IFCHR)
		937	const_iv (S_IFBLK)
		938	const_iv (S_IFLNK)
		939	const_iv (S_IFREG)
		940	const_iv (S_IFDIR)
		941	const_iv (S_IFWHT)
		942	const_iv (S_IFSOCK)
		943	const_iv (S_IFMT)
		944
		945	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		946	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		947	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		948	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		949	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		950	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		951
		952	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		953	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		954	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		955	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		956	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		957
		958	const_iv (ST_RDONLY)
		959	const_iv (ST_NOSUID)
		960	const_iv (ST_NODEV)
		961	const_iv (ST_NOEXEC)
		962	const_iv (ST_SYNCHRONOUS)
		963	const_iv (ST_MANDLOCK)
		964	const_iv (ST_WRITE)
		965	const_iv (ST_APPEND)
		966	const_iv (ST_IMMUTABLE)
		967	const_iv (ST_NOATIME)
		968	const_iv (ST_NODIRATIME)
		969	const_iv (ST_RELATIME)
		970
		971	const_iv (PROT_NONE)
		972	const_iv (PROT_EXEC)
		973	const_iv (PROT_READ)
		974	const_iv (PROT_WRITE)
		975
		976	/*const_iv (MAP_FIXED)*/
		977	const_iv (MAP_PRIVATE)
		978	const_iv (MAP_SHARED)
		979	const_iv (MAP_ANONYMOUS)
		980
		981	/* linuxish */
		982	const_iv (MAP_HUGETLB)
		983	const_iv (MAP_LOCKED)
		984	const_iv (MAP_NORESERVE)
		985	const_iv (MAP_POPULATE)
		986	const_iv (MAP_NONBLOCK)
		987
		988	const_iv (FIEMAP_FLAG_SYNC)
		989	const_iv (FIEMAP_FLAG_XATTR)
		990	const_iv (FIEMAP_FLAGS_COMPAT)
		991	const_iv (FIEMAP_EXTENT_LAST)
		992	const_iv (FIEMAP_EXTENT_UNKNOWN)
		993	const_iv (FIEMAP_EXTENT_DELALLOC)
		994	const_iv (FIEMAP_EXTENT_ENCODED)
		995	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		996	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		997	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		998	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		999	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1000	const_iv (FIEMAP_EXTENT_MERGED)
		1001	const_iv (FIEMAP_EXTENT_SHARED)
		1002
		1003	const_iv (SPLICE_F_MOVE)
		1004	const_iv (SPLICE_F_NONBLOCK)
		1005	const_iv (SPLICE_F_MORE)
		1006	const_iv (SPLICE_F_GIFT)
		1007
		1008	const_iv (SEEK_DATA)
		1009	const_iv (SEEK_HOLE)
		1010
		1011	/* libeio constants */
		1012	const_eio (SEEK_SET)
		1013	const_eio (SEEK_CUR)
		1014	const_eio (SEEK_END)
		1015
		1016	const_eio (MCL_FUTURE)
		1017	const_eio (MCL_CURRENT)
		1018
		1019	const_eio (MS_ASYNC)
		1020	const_eio (MS_INVALIDATE)
		1021	const_eio (MS_SYNC)
		1022
		1023	const_eio (MT_MODIFY)
		1024
		1025	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		1026	const_eio (SYNC_FILE_RANGE_WRITE)
		1027	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1028
		1029	const_eio (FALLOC_FL_KEEP_SIZE)
		1030	const_eio (FALLOC_FL_PUNCH_HOLE)
		1031
		1032	const_eio (READDIR_DENTS)
		1033	const_eio (READDIR_DIRS_FIRST)
		1034	const_eio (READDIR_STAT_ORDER)
		1035	const_eio (READDIR_FOUND_UNKNOWN)
		1036
		1037	const_eio (DT_UNKNOWN)
		1038	const_eio (DT_FIFO)
		1039	const_eio (DT_CHR)
		1040	const_eio (DT_DIR)
		1041	const_eio (DT_BLK)
		1042	const_eio (DT_REG)
		1043	const_eio (DT_LNK)
		1044	const_eio (DT_SOCK)
		1045	const_eio (DT_WHT)
		1046	};
		1047
472	stash = gv_stashpv ("IO::AIO", 1);	1048	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1049	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1050	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1051	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
473		1052
474	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1053	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
475	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1054	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
476	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
477	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
478	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
479	#ifdef _WIN32
480	X_MUTEX_CHECK (wrklock);
481	X_MUTEX_CHECK (reslock);
482	X_MUTEX_CHECK (reqlock);
483	X_MUTEX_CHECK (reqwait);
484	X_MUTEX_CHECK (preadwritelock);
485	X_MUTEX_CHECK (readdirlock);
486		1055
487	X_COND_CHECK (reqwait);	1056	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
488	#else
489	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
490	#endif
491		1057
492	create_respipe ();	1058	reinit ();
493
494	if (eio_init (want_poll, done_poll) < 0)
495	croak ("IO::AIO: unable to initialise eio library");
496
497	/* atfork child called in fifo order, so before eio's handler */
498	X_THREAD_ATFORK (0, 0, atfork_child);
499	}	1059	}
500		1060
501	void	1061	void
		1062	reinit ()
		1063	PROTOTYPE:
		1064
		1065	void
502	max_poll_reqs (int nreqs)	1066	max_poll_reqs (unsigned int nreqs)
503	PROTOTYPE: $	1067	PROTOTYPE: $
504	CODE:	1068	CODE:
505	eio_set_max_poll_reqs (nreqs);	1069	eio_set_max_poll_reqs (nreqs);
506		1070
507	void	1071	void
…		…
509	PROTOTYPE: $	1073	PROTOTYPE: $
510	CODE:	1074	CODE:
511	eio_set_max_poll_time (nseconds);	1075	eio_set_max_poll_time (nseconds);
512		1076
513	void	1077	void
514	min_parallel (int nthreads)	1078	min_parallel (unsigned int nthreads)
515	PROTOTYPE: $	1079	PROTOTYPE: $
516	CODE:	1080	CODE:
517	eio_set_min_parallel (nthreads);	1081	eio_set_min_parallel (nthreads);
518		1082
519	void	1083	void
520	max_parallel (int nthreads)	1084	max_parallel (unsigned int nthreads)
521	PROTOTYPE: $	1085	PROTOTYPE: $
522	CODE:	1086	CODE:
523	eio_set_max_parallel (nthreads);	1087	eio_set_max_parallel (nthreads);
524		1088
525	void	1089	void
526	max_idle (int nthreads)	1090	max_idle (unsigned int nthreads)
527	PROTOTYPE: $	1091	PROTOTYPE: $
528	CODE:	1092	CODE:
529	eio_set_max_idle (nthreads);	1093	eio_set_max_idle (nthreads);
530		1094
531	void	1095	void
		1096	idle_timeout (unsigned int seconds)
		1097	PROTOTYPE: $
		1098	CODE:
		1099	eio_set_idle_timeout (seconds);
		1100
		1101	void
532	max_outstanding (int maxreqs)	1102	max_outstanding (unsigned int maxreqs)
533	PROTOTYPE: $	1103	PROTOTYPE: $
534	CODE:	1104	CODE:
535	max_outstanding = maxreqs;	1105	max_outstanding = maxreqs;
536		1106
537	void	1107	void
		1108	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1109	PPCODE:
		1110	{
		1111	dREQ;
		1112
		1113	req->type = EIO_WD_OPEN;
		1114	req_set_path1 (req, pathname);
		1115
		1116	REQ_SEND;
		1117	}
		1118
		1119	void
538	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1120	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
539	PROTOTYPE: $$$;$
540	PPCODE:	1121	PPCODE:
541	{	1122	{
542	dREQ;	1123	dREQ;
543		1124
544	req->type = EIO_OPEN;	1125	req->type = EIO_OPEN;
545	req->sv1 = newSVsv (pathname);	1126	req_set_path1 (req, pathname);
546	req->ptr1 = SvPVbyte_nolen (req->sv1);
547	req->int1 = flags;	1127	req->int1 = flags;
548	req->int2 = mode;	1128	req->int2 = mode;
549		1129
550	REQ_SEND;	1130	REQ_SEND;
551	}	1131	}
552		1132
553	void	1133	void
554	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1134	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
555	PROTOTYPE: $;$
556	ALIAS:	1135	ALIAS:
557	aio_fsync = EIO_FSYNC	1136	aio_fsync = EIO_FSYNC
558	aio_fdatasync = EIO_FDATASYNC	1137	aio_fdatasync = EIO_FDATASYNC
		1138	aio_syncfs = EIO_SYNCFS
559	PPCODE:	1139	PPCODE:
560	{	1140	{
		1141	int fd = s_fileno_croak (fh, 0);
561	dREQ;	1142	dREQ;
562		1143
563	req->type = ix;	1144	req->type = ix;
564	req->sv1 = newSVsv (fh);	1145	req->sv1 = newSVsv (fh);
565	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1146	req->int1 = fd;
566		1147
567	REQ_SEND (req);	1148	REQ_SEND;
		1149	}
		1150
		1151	void
		1152	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		1153	PPCODE:
		1154	{
		1155	int fd = s_fileno_croak (fh, 0);
		1156	dREQ;
		1157
		1158	req->type = EIO_SYNC_FILE_RANGE;
		1159	req->sv1 = newSVsv (fh);
		1160	req->int1 = fd;
		1161	req->offs = offset;
		1162	req->size = nbytes;
		1163	req->int2 = flags;
		1164
		1165	REQ_SEND;
		1166	}
		1167
		1168	void
		1169	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1170	PPCODE:
		1171	{
		1172	int fd = s_fileno_croak (fh, 0);
		1173	dREQ;
		1174
		1175	req->type = EIO_FALLOCATE;
		1176	req->sv1 = newSVsv (fh);
		1177	req->int1 = fd;
		1178	req->int2 = mode;
		1179	req->offs = offset;
		1180	req->size = len;
		1181
		1182	REQ_SEND;
568	}	1183	}
569		1184
570	void	1185	void
571	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1186	aio_close (SV *fh, SV *callback=&PL_sv_undef)
572	PROTOTYPE: $;$
573	PPCODE:	1187	PPCODE:
574	{	1188	{
575	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1189	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1190	int fd = s_fileno_croak (fh, 0);
576	dREQ;	1191	dREQ;
577		1192
578	if (close_pipe < 0)	1193	if (expect_false (close_fd < 0))
579	{	1194	{
580	int pipefd [2];	1195	int pipefd [2];
581		1196
		1197	if (
		1198	#ifdef _WIN32
		1199	_pipe (pipefd, 1, _O_BINARY) < 0
		1200	#else
582	if (pipe (pipefd) < 0	1201	pipe (pipefd) < 0
583	|| close (pipefd [1]) < 0
584	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1202	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1203	#endif
		1204	|| close (pipefd [1]) < 0
		1205	)
585	abort (); /*D*/	1206	abort (); /*D*/
586		1207
587	close_pipe = pipefd [0];	1208	close_fd = pipefd [0];
588	}	1209	}
589		1210
590	req->type = EIO_DUP2;	1211	req->type = EIO_DUP2;
591	req->int1 = close_pipe;	1212	req->int1 = close_fd;
592	req->sv2 = newSVsv (fh);	1213	req->sv2 = newSVsv (fh);
593	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1214	req->int2 = fd;
594		1215
595	REQ_SEND (req);	1216	REQ_SEND;
		1217	}
		1218
		1219	void
		1220	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1221	PPCODE:
		1222	{
		1223	int fd = s_fileno_croak (fh, 0);
		1224	dREQ;
		1225
		1226	req->type = EIO_SEEK;
		1227	req->sv1 = newSVsv (fh);
		1228	req->int1 = fd;
		1229	req->offs = SvVAL64 (offset);
		1230	req->int2 = whence;
		1231
		1232	REQ_SEND;
596	}	1233	}
597		1234
598	void	1235	void
599	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1236	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
600	ALIAS:	1237	ALIAS:
601	aio_read = EIO_READ	1238	aio_read = EIO_READ
602	aio_write = EIO_WRITE	1239	aio_write = EIO_WRITE
603	PROTOTYPE: $$$$$;$
604	PPCODE:	1240	PPCODE:
605	{	1241	{
606	STRLEN svlen;	1242	STRLEN svlen;
		1243	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
607	char *svptr = SvPVbyte (data, svlen);	1244	char *svptr = SvPVbyte (data, svlen);
608	UV len = SvUV (length);	1245	UV len = SvUV (length);
609
610	SvUPGRADE (data, SVt_PV);
611	SvPOK_on (data);
612		1246
613	if (dataoffset < 0)	1247	if (dataoffset < 0)
614	dataoffset += svlen;	1248	dataoffset += svlen;
615		1249
616	if (dataoffset < 0 || dataoffset > svlen)	1250	if (dataoffset < 0 || dataoffset > svlen)
…		…
622	if (!SvOK (length) || len + dataoffset > svlen)	1256	if (!SvOK (length) || len + dataoffset > svlen)
623	len = svlen - dataoffset;	1257	len = svlen - dataoffset;
624	}	1258	}
625	else	1259	else
626	{	1260	{
627	/* read: grow scalar as necessary */	1261	/* read: check type and grow scalar as necessary */
		1262	SvUPGRADE (data, SVt_PV);
		1263	if (SvLEN (data) >= SvCUR (data))
628	svptr = SvGROW (data, len + dataoffset + 1);	1264	svptr = SvGROW (data, len + dataoffset + 1);
		1265	else if (SvCUR (data) < len + dataoffset)
		1266	croak ("length + dataoffset outside of scalar, and cannot grow");
629	}	1267	}
630
631	if (len < 0)
632	croak ("length must not be negative");
633		1268
634	{	1269	{
635	dREQ;	1270	dREQ;
636		1271
637	req->type = ix;	1272	req->type = ix;
638	req->sv1 = newSVsv (fh);	1273	req->sv1 = newSVsv (fh);
639	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1274	req->int1 = fd;
640	: IoOFP (sv_2io (fh)));
641	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1275	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
642	req->size = len;	1276	req->size = len;
643	req->sv2 = SvREFCNT_inc (data);	1277	req->sv2 = SvREFCNT_inc (data);
644	req->ptr2 = (char *)svptr + dataoffset;	1278	req->ptr2 = (char *)svptr + dataoffset;
645	req->stroffset = dataoffset;	1279	req->stroffset = dataoffset;
…		…
653	REQ_SEND;	1287	REQ_SEND;
654	}	1288	}
655	}	1289	}
656		1290
657	void	1291	void
658	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1292	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
659	PROTOTYPE: $$;$	1293	ALIAS:
		1294	aio_readlink = EIO_READLINK
		1295	aio_realpath = EIO_REALPATH
660	PPCODE:	1296	PPCODE:
661	{	1297	{
662	SV *data;
663	dREQ;	1298	dREQ;
664		1299
665	req->type = EIO_READLINK;	1300	req->type = ix;
666	req->sv1 = newSVsv (path);	1301	req_set_path1 (req, pathname);
667	req->ptr1 = SvPVbyte_nolen (req->sv1);
668		1302
669	REQ_SEND;	1303	REQ_SEND;
670	}	1304	}
671		1305
672	void	1306	void
673	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1307	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
674	PROTOTYPE: $$$$;$
675	PPCODE:	1308	PPCODE:
676	{	1309	{
		1310	int ifd = s_fileno_croak (in_fh , 0);
		1311	int ofd = s_fileno_croak (out_fh, 1);
677	dREQ;	1312	dREQ;
678		1313
679	req->type = EIO_SENDFILE;	1314	req->type = EIO_SENDFILE;
680	req->sv1 = newSVsv (out_fh);	1315	req->sv1 = newSVsv (out_fh);
681	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1316	req->int1 = ofd;
682	req->sv2 = newSVsv (in_fh);	1317	req->sv2 = newSVsv (in_fh);
683	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1318	req->int2 = ifd;
684	req->offs = SvVAL64 (in_offset);	1319	req->offs = in_offset;
685	req->size = length;	1320	req->size = length;
686		1321
687	REQ_SEND;	1322	REQ_SEND;
688	}	1323	}
689		1324
690	void	1325	void
691	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1326	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
692	PROTOTYPE: $$$;$
693	PPCODE:	1327	PPCODE:
694	{	1328	{
		1329	int fd = s_fileno_croak (fh, 0);
695	dREQ;	1330	dREQ;
696		1331
697	req->type = EIO_READAHEAD;	1332	req->type = EIO_READAHEAD;
698	req->sv1 = newSVsv (fh);	1333	req->sv1 = newSVsv (fh);
699	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1334	req->int1 = fd;
700	req->offs = SvVAL64 (offset);	1335	req->offs = offset;
701	req->size = length;	1336	req->size = length;
702		1337
703	REQ_SEND;	1338	REQ_SEND;
704	}	1339	}
705		1340
706	void	1341	void
707	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1342	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
708	ALIAS:	1343	ALIAS:
709	aio_stat = EIO_STAT	1344	aio_stat = EIO_STAT
710	aio_lstat = EIO_LSTAT	1345	aio_lstat = EIO_LSTAT
		1346	aio_statvfs = EIO_STATVFS
711	PPCODE:	1347	PPCODE:
712	{	1348	{
713	dREQ;	1349	dREQ;
714		1350
715	req->sv1 = newSVsv (fh_or_path);	1351	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
716
717	if (SvPOK (req->sv1))
718	{
719	req->type = ix;
720	req->ptr1 = SvPVbyte_nolen (req->sv1);
721	}
722	else
723	{
724	req->type = EIO_FSTAT;
725	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
726	}
727		1352
728	REQ_SEND;	1353	REQ_SEND;
729	}	1354	}
		1355
		1356	UV
		1357	major (UV dev)
		1358	ALIAS:
		1359	minor = 1
		1360	CODE:
		1361	RETVAL = ix ? major (dev) : minor (dev);
		1362	OUTPUT:
		1363	RETVAL
		1364
		1365	UV
		1366	makedev (UV maj, UV min)
		1367	CODE:
		1368	RETVAL = makedev (maj, min);
		1369	OUTPUT:
		1370	RETVAL
730		1371
731	void	1372	void
732	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1373	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
733	PPCODE:	1374	PPCODE:
734	{	1375	{
735	dREQ;	1376	dREQ;
736		1377
737	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1378	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
738	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1379	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
739	req->sv1 = newSVsv (fh_or_path);	1380	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
740
741	if (SvPOK (req->sv1))
742	{
743	req->type = EIO_UTIME;
744	req->ptr1 = SvPVbyte_nolen (req->sv1);
745	}
746	else
747	{
748	req->type = EIO_FUTIME;
749	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
750	}
751		1381
752	REQ_SEND;	1382	REQ_SEND;
753	}	1383	}
754		1384
755	void	1385	void
756	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1386	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
757	PPCODE:	1387	PPCODE:
758	{	1388	{
759	dREQ;	1389	dREQ;
760		1390
761	req->sv1 = newSVsv (fh_or_path);
762	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1391	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
763		1392	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
764	if (SvPOK (req->sv1))
765	{
766	req->type = EIO_TRUNCATE;
767	req->ptr1 = SvPVbyte_nolen (req->sv1);
768	}
769	else
770	{
771	req->type = EIO_FTRUNCATE;
772	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
773	}
774		1393
775	REQ_SEND;	1394	REQ_SEND;
776	}	1395	}
777		1396
778	void	1397	void
779	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1398	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
780	ALIAS:
781	aio_chmod = EIO_CHMOD
782	aio_mkdir = EIO_MKDIR
783	PPCODE:	1399	PPCODE:
784	{	1400	{
785	dREQ;	1401	dREQ;
786		1402
787	req->int2 = mode;	1403	req->int2 = mode;
788	req->sv1 = newSVsv (fh_or_path);	1404	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
789
790	if (SvPOK (req->sv1))
791	{
792	req->type = EIO_FCHMOD;
793	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
794	}
795	else
796	{
797	req->type = ix;
798	req->ptr1 = SvPVbyte_nolen (req->sv1);
799	}
800		1405
801	REQ_SEND;	1406	REQ_SEND;
802	}	1407	}
803		1408
804	void	1409	void
…		…
807	{	1412	{
808	dREQ;	1413	dREQ;
809		1414
810	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1415	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
811	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1416	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
812	req->sv1 = newSVsv (fh_or_path);	1417	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
813		1418
814	if (SvPOK (req->sv1))	1419	REQ_SEND;
815	{	1420	}
		1421
		1422	void
		1423	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1424	PPCODE:
		1425	{
		1426	dREQ;
		1427
		1428	req->type = EIO_READDIR;
		1429	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1430
		1431	if (flags & EIO_READDIR_DENTS)
		1432	req->int1 |= EIO_READDIR_CUSTOM2;
		1433
		1434	req_set_path1 (req, pathname);
		1435
		1436	REQ_SEND;
		1437	}
		1438
		1439	void
		1440	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1441	PPCODE:
		1442	{
		1443	dREQ;
		1444
816	req->type = EIO_CHOWN;	1445	req->type = EIO_MKDIR;
817	req->ptr1 = SvPVbyte_nolen (req->sv1);	1446	req->int2 = mode;
818	}	1447	req_set_path1 (req, pathname);
819	else
820	{
821	req->type = EIO_FCHOWN;
822	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
823	}
824		1448
825	REQ_SEND;	1449	REQ_SEND;
826	}	1450	}
827		1451
828	void	1452	void
…		…
834	PPCODE:	1458	PPCODE:
835	{	1459	{
836	dREQ;	1460	dREQ;
837		1461
838	req->type = ix;	1462	req->type = ix;
839	req->sv1 = newSVsv (pathname);	1463	req_set_path1 (req, pathname);
840	req->ptr1 = SvPVbyte_nolen (req->sv1);
841		1464
842	REQ_SEND;	1465	REQ_SEND;
843	}	1466	}
844		1467
845	void	1468	void
…		…
848	aio_link = EIO_LINK	1471	aio_link = EIO_LINK
849	aio_symlink = EIO_SYMLINK	1472	aio_symlink = EIO_SYMLINK
850	aio_rename = EIO_RENAME	1473	aio_rename = EIO_RENAME
851	PPCODE:	1474	PPCODE:
852	{	1475	{
		1476	eio_wd wd2 = 0;
853	dREQ;	1477	dREQ;
854		1478
855	req->type = ix;	1479	req->type = ix;
856	req->sv1 = newSVsv (oldpath);	1480	req_set_path1 (req, oldpath);
857	req->ptr1 = SvPVbyte_nolen (req->sv1);	1481	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
858	req->sv2 = newSVsv (newpath);	1482	req->int3 = (long)wd2;
859	req->ptr2 = SvPVbyte_nolen (req->sv2);
860		1483
861	REQ_SEND;	1484	REQ_SEND;
862	}	1485	}
863		1486
864	void	1487	void
…		…
866	PPCODE:	1489	PPCODE:
867	{	1490	{
868	dREQ;	1491	dREQ;
869		1492
870	req->type = EIO_MKNOD;	1493	req->type = EIO_MKNOD;
871	req->sv1 = newSVsv (pathname);
872	req->ptr1 = SvPVbyte_nolen (req->sv1);
873	req->int2 = (mode_t)mode;	1494	req->int2 = (mode_t)mode;
874	req->offs = dev;	1495	req->offs = dev;
		1496	req_set_path1 (req, pathname);
875		1497
876	REQ_SEND;	1498	REQ_SEND;
877	}	1499	}
878		1500
879	void	1501	void
		1502	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1503	ALIAS:
		1504	aio_mtouch = EIO_MTOUCH
		1505	aio_msync = EIO_MSYNC
		1506	PPCODE:
		1507	{
		1508	STRLEN svlen;
		1509	char *svptr = SvPVbyte (data, svlen);
		1510	UV len = SvUV (length);
		1511
		1512	if (offset < 0)
		1513	offset += svlen;
		1514
		1515	if (offset < 0 || offset > svlen)
		1516	croak ("offset outside of scalar");
		1517
		1518	if (!SvOK (length) || len + offset > svlen)
		1519	len = svlen - offset;
		1520
		1521	{
		1522	dREQ;
		1523
		1524	req->type = ix;
		1525	req->sv2 = SvREFCNT_inc (data);
		1526	req->ptr2 = (char *)svptr + offset;
		1527	req->size = len;
		1528	req->int1 = flags;
		1529
		1530	REQ_SEND;
		1531	}
		1532	}
		1533
		1534	void
		1535	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1536	PPCODE:
		1537	{
		1538	STRLEN svlen;
		1539	char *svptr = SvPVbyte (data, svlen);
		1540	UV len = SvUV (length);
		1541
		1542	if (offset < 0)
		1543	offset += svlen;
		1544
		1545	if (offset < 0 || offset > svlen)
		1546	croak ("offset outside of scalar");
		1547
		1548	if (!SvOK (length) || len + offset > svlen)
		1549	len = svlen - offset;
		1550
		1551	{
		1552	dREQ;
		1553
		1554	req->type = EIO_MLOCK;
		1555	req->sv2 = SvREFCNT_inc (data);
		1556	req->ptr2 = (char *)svptr + offset;
		1557	req->size = len;
		1558
		1559	REQ_SEND;
		1560	}
		1561	}
		1562
		1563	void
		1564	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1565	PPCODE:
		1566	{
		1567	dREQ;
		1568
		1569	req->type = EIO_MLOCKALL;
		1570	req->int1 = flags;
		1571
		1572	REQ_SEND;
		1573	}
		1574
		1575	void
		1576	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1577	PPCODE:
		1578	{
		1579	int fd = s_fileno_croak (fh, 0);
		1580	dREQ;
		1581
		1582	req->type = EIO_CUSTOM;
		1583	req->sv1 = newSVsv (fh);
		1584	req->int1 = fd;
		1585
		1586	req->feed = fiemap;
		1587	#if HAVE_FIEMAP
		1588	/* keep our fingers crossed that the next two types are 64 bit */
		1589	req->offs = start;
		1590	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1591	req->int2 = flags;
		1592	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1593	#endif
		1594
		1595	REQ_SEND;
		1596	}
		1597
		1598	void
880	aio_busy (double delay, SV *callback=&PL_sv_undef)	1599	aio_busy (double delay, SV *callback=&PL_sv_undef)
881	PPCODE:	1600	PPCODE:
882	{	1601	{
883	dREQ;	1602	dREQ;
884		1603
…		…
888	REQ_SEND;	1607	REQ_SEND;
889	}	1608	}
890		1609
891	void	1610	void
892	aio_group (SV *callback=&PL_sv_undef)	1611	aio_group (SV *callback=&PL_sv_undef)
893	PROTOTYPE: ;$
894	PPCODE:	1612	PPCODE:
895	{	1613	{
896	dREQ;	1614	dREQ;
897		1615
898	req->type = EIO_GROUP;	1616	req->type = EIO_GROUP;
899		1617
900	eio_submit (req);	1618	req_submit (req);
901	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1619	XPUSHs (req_sv (req, aio_grp_stash));
902	}	1620	}
903		1621
904	void	1622	void
905	aio_nop (SV *callback=&PL_sv_undef)	1623	aio_nop (SV *callback=&PL_sv_undef)
906	ALIAS:	1624	ALIAS:
…		…
915	REQ_SEND;	1633	REQ_SEND;
916	}	1634	}
917		1635
918	int	1636	int
919	aioreq_pri (int pri = 0)	1637	aioreq_pri (int pri = 0)
920	PROTOTYPE: ;$
921	CODE:	1638	CODE:
922	RETVAL = next_pri - EIO_PRI_BIAS;	1639	RETVAL = next_pri;
923	if (items > 0)	1640	if (items > 0)
924	{	1641	{
925	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1642	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
926	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1643	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
927	next_pri = pri + EIO_PRI_BIAS;	1644	next_pri = pri;
928	}	1645	}
929	OUTPUT:	1646	OUTPUT:
930	RETVAL	1647	RETVAL
931		1648
932	void	1649	void
933	aioreq_nice (int nice = 0)	1650	aioreq_nice (int nice = 0)
934	CODE:	1651	CODE:
935	nice = next_pri - nice;	1652	nice = next_pri - nice;
936	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1653	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
937	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1654	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
938	next_pri = nice + EIO_PRI_BIAS;	1655	next_pri = nice;
939		1656
940	void	1657	void
941	flush ()	1658	flush ()
942	PROTOTYPE:
943	CODE:	1659	CODE:
944	while (eio_nreqs ())	1660	while (eio_nreqs ())
945	{	1661	{
946	poll_wait ();	1662	poll_wait ();
947	poll_cb ();	1663	poll_cb ();
948	}	1664	}
949		1665
950	int	1666	int
951	poll()	1667	poll ()
952	PROTOTYPE:
953	CODE:	1668	CODE:
954	poll_wait ();	1669	poll_wait ();
955	RETVAL = poll_cb ();	1670	RETVAL = poll_cb ();
956	OUTPUT:	1671	OUTPUT:
957	RETVAL	1672	RETVAL
958		1673
959	int	1674	int
960	poll_fileno()	1675	poll_fileno ()
961	PROTOTYPE:
962	CODE:	1676	CODE:
963	RETVAL = respipe [0];	1677	RETVAL = s_epipe_fd (&respipe);
964	OUTPUT:	1678	OUTPUT:
965	RETVAL	1679	RETVAL
966		1680
967	int	1681	int
968	poll_cb(...)	1682	poll_cb (...)
969	PROTOTYPE:	1683	PROTOTYPE:
970	CODE:	1684	CODE:
971	RETVAL = poll_cb ();	1685	RETVAL = poll_cb ();
972	OUTPUT:	1686	OUTPUT:
973	RETVAL	1687	RETVAL
974		1688
975	void	1689	void
976	poll_wait()	1690	poll_wait ()
977	PROTOTYPE:
978	CODE:	1691	CODE:
979	poll_wait ();	1692	poll_wait ();
980		1693
981	int	1694	int
982	nreqs()	1695	nreqs ()
983	PROTOTYPE:
984	CODE:	1696	CODE:
985	RETVAL = eio_nreqs ();	1697	RETVAL = eio_nreqs ();
986	OUTPUT:	1698	OUTPUT:
987	RETVAL	1699	RETVAL
988		1700
989	int	1701	int
990	nready()	1702	nready ()
991	PROTOTYPE:
992	CODE:	1703	CODE:
993	RETVAL = eio_nready ();	1704	RETVAL = eio_nready ();
994	OUTPUT:	1705	OUTPUT:
995	RETVAL	1706	RETVAL
996		1707
997	int	1708	int
998	npending()	1709	npending ()
999	PROTOTYPE:
1000	CODE:	1710	CODE:
1001	RETVAL = eio_npending ();	1711	RETVAL = eio_npending ();
1002	OUTPUT:	1712	OUTPUT:
1003	RETVAL	1713	RETVAL
1004		1714
1005	int	1715	int
1006	nthreads()	1716	nthreads ()
1007	PROTOTYPE:
1008	CODE:	1717	CODE:
1009	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1718	RETVAL = eio_nthreads ();
1010	RETVAL = started;
1011	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1012	OUTPUT:	1719	OUTPUT:
1013	RETVAL	1720	RETVAL
		1721
		1722	int
		1723	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1724	CODE:
		1725	RETVAL = posix_fadvise (fh, offset, length, advice);
		1726	OUTPUT:
		1727	RETVAL
		1728
		1729	IV
		1730	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1731	CODE:
		1732	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1733	OUTPUT:
		1734	RETVAL
		1735
		1736	void
		1737	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1738	PPCODE:
		1739	sv_unmagic (scalar, MMAP_MAGIC);
		1740	{
		1741	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1742	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1743	if (addr == (void *)-1)
		1744	XSRETURN_NO;
		1745
		1746	sv_force_normal (scalar);
		1747
		1748	/* we store the length in mg_obj, as namlen is I32 :/ */
		1749	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1750	->mg_obj = (SV *)length;
		1751
		1752	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1753
		1754	if (!(prot & PROT_WRITE))
		1755	SvREADONLY_on (scalar);
		1756
		1757	if (SvLEN (scalar))
		1758	Safefree (SvPVX (scalar));
		1759
		1760	SvPVX (scalar) = (char *)addr;
		1761	SvCUR_set (scalar, length);
		1762	SvLEN_set (scalar, 0);
		1763	SvPOK_only (scalar);
		1764
		1765	XSRETURN_YES;
		1766	}
		1767
		1768	void
		1769	munmap (SV *scalar)
		1770	CODE:
		1771	sv_unmagic (scalar, MMAP_MAGIC);
		1772
		1773	int
		1774	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1775	ALIAS:
		1776	mprotect = 1
		1777	CODE:
		1778	{
		1779	STRLEN svlen;
		1780	void *addr = SvPVbyte (scalar, svlen);
		1781	size_t len = SvUV (length);
		1782
		1783	if (offset < 0)
		1784	offset += svlen;
		1785
		1786	if (offset < 0 || offset > svlen)
		1787	croak ("offset outside of scalar");
		1788
		1789	if (!SvOK (length) || len + offset > svlen)
		1790	len = svlen - offset;
		1791
		1792	addr = (void *)(((intptr_t)addr) + offset);
		1793	eio_page_align (&addr, &len);
		1794
		1795	switch (ix)
		1796	{
		1797	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1798	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1799	}
		1800	}
		1801	OUTPUT:
		1802	RETVAL
		1803
		1804	int
		1805	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1806	CODE:
		1807	{
		1808	STRLEN svlen;
		1809	void *addr = SvPVbyte (scalar, svlen);
		1810	size_t len = SvUV (length);
		1811
		1812	if (offset < 0)
		1813	offset += svlen;
		1814
		1815	if (offset < 0 || offset > svlen)
		1816	croak ("offset outside of scalar");
		1817
		1818	if (!SvOK (length) || len + offset > svlen)
		1819	len = svlen - offset;
		1820
		1821	addr = (void *)(((intptr_t)addr) + offset);
		1822	eio_page_align (&addr, &len);
		1823	#if _POSIX_MEMLOCK_RANGE
		1824	RETVAL = munlock (addr, len);
		1825	#else
		1826	RETVAL = EIO_ENOSYS ();
		1827	#endif
		1828	}
		1829	OUTPUT:
		1830	RETVAL
		1831
		1832	int
		1833	munlockall ()
		1834	CODE:
		1835	#if _POSIX_MEMLOCK
		1836	munlockall ();
		1837	#else
		1838	RETVAL = EIO_ENOSYS ();
		1839	#endif
		1840	OUTPUT:
		1841	RETVAL
		1842
		1843	int
		1844	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1845	CODE:
		1846	{
		1847	#if HAVE_LINUX_SPLICE
		1848	loff_t off_in_, off_out_;
		1849	RETVAL = splice (
		1850	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1851	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1852	length, flags
		1853	);
		1854	#else
		1855	RETVAL = EIO_ENOSYS ();
		1856	#endif
		1857	}
		1858	OUTPUT:
		1859	RETVAL
		1860
		1861	int
		1862	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1863	CODE:
		1864	#if HAVE_LINUX_SPLICE
		1865	RETVAL = tee (rfh, wfh, length, flags);
		1866	#else
		1867	RETVAL = EIO_ENOSYS ();
		1868	#endif
		1869	OUTPUT:
		1870	RETVAL
1014		1871
1015	void _on_next_submit (SV *cb)	1872	void _on_next_submit (SV *cb)
1016	CODE:	1873	CODE:
1017	SvREFCNT_dec (on_next_submit);	1874	SvREFCNT_dec (on_next_submit);
1018	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1875	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1019		1876
1020	PROTOTYPES: DISABLE	1877	PROTOTYPES: DISABLE
1021		1878
		1879	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1880
		1881	BOOT:
		1882	{
		1883	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1884	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1885	}
		1886
		1887	void
		1888	DESTROY (SV *self)
		1889	CODE:
		1890	{
		1891	aio_wd wd = SvAIO_WD (self);
		1892	#if HAVE_AT
		1893	{
		1894	SV *callback = &PL_sv_undef;
		1895	dREQ; /* clobbers next_pri :/ */
		1896	next_pri = req->pri; /* restore next_pri */
		1897	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1898	req->type = EIO_WD_CLOSE;
		1899	req->wd = wd;
		1900	REQ_SEND;
		1901	}
		1902	#else
		1903	eio_wd_close_sync (wd);
		1904	#endif
		1905	}
		1906
1022	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1907	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1023		1908
1024	void	1909	void
1025	cancel (aio_req_ornot req)	1910	cancel (aio_req_ornot req)
1026	CODE:	1911	CODE:
1027	eio_cancel (req);	1912	eio_cancel (req);
1028		1913
1029	void	1914	void
1030	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1915	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1031	CODE:	1916	PPCODE:
		1917	{
		1918	if (GIMME_V != G_VOID)
		1919	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1920
		1921	if (items > 1)
		1922	{
		1923	SV *cb_cv =get_cb (callback);
		1924
1032	SvREFCNT_dec (req->callback);	1925	SvREFCNT_dec (req->callback);
1033	req->callback = newSVsv (callback);	1926	req->callback = SvREFCNT_inc (cb_cv);
		1927	}
		1928	}
1034		1929
1035	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1930	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1036		1931
1037	void	1932	void
1038	add (aio_req grp, ...)	1933	add (aio_req grp, ...)
…		…
1070	AV *av;	1965	AV *av;
1071		1966
1072	grp->errorno = errno;	1967	grp->errorno = errno;
1073		1968
1074	av = newAV ();	1969	av = newAV ();
		1970	av_extend (av, items - 1);
1075		1971
1076	for (i = 1; i < items; ++i )	1972	for (i = 1; i < items; ++i )
1077	av_push (av, newSVsv (ST (i)));	1973	av_push (av, newSVsv (ST (i)));
1078		1974
1079	SvREFCNT_dec (grp->sv1);	1975	SvREFCNT_dec (grp->sv1);
…		…
1093	void	1989	void
1094	feed (aio_req grp, SV *callback=&PL_sv_undef)	1990	feed (aio_req grp, SV *callback=&PL_sv_undef)
1095	CODE:	1991	CODE:
1096	{	1992	{
1097	SvREFCNT_dec (grp->sv2);	1993	SvREFCNT_dec (grp->sv2);
1098	grp->sv2 = newSVsv (callback);	1994	grp->sv2 = newSVsv (callback);
		1995	grp->feed = aio_grp_feed;
1099		1996
1100	if (grp->int2 <= 0)	1997	if (grp->int2 <= 0)
1101	grp->int2 = 2;	1998	grp->int2 = 2;
1102		1999
1103	eio_grp_limit (grp, grp->int2);	2000	eio_grp_limit (grp, grp->int2);

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