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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.122 by root, Tue May 13 19:35:16 2008 UTC vs.
Revision 1.230 by root, Tue Jun 3 01:30:33 2014 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8
		9	#include "schmorp.h"
8		10
9	#include <stddef.h>	11	#include <stddef.h>
10	#include <stdlib.h>	12	#include <stdlib.h>
11	#include <errno.h>	13	#include <errno.h>
12	#include <sys/types.h>	14	#include <sys/types.h>
13	#include <sys/stat.h>	15	#include <sys/stat.h>
14	#include <limits.h>	16	#include <limits.h>
15	#include <fcntl.h>	17	#include <fcntl.h>
16	#include <sched.h>	18	#include <sched.h>
17		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
		24	/* the incompetent fool that created musl keeps __linux__, refuses
		25	* to implement any linux standard apis, and also has no way to test
		26	* for his broken iplementation. on't complain if this fails for you.
		27	*/
		28	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		29	# include <linux/fs.h>
		30	# ifdef FS_IOC_FIEMAP
		31	# include <linux/types.h>
		32	# include <linux/fiemap.h>
		33	# define HAVE_FIEMAP 1
		34	# endif
		35	#endif
		36
18	/* perl namespace pollution */	37	/* perl namespace pollution */
19	#undef VERSION	38	#undef VERSION
20		39
		40	/* perl stupidly overrides readdir and maybe others */
		41	/* with thread-unsafe versions, imagine that :( */
		42	#undef readdir
		43	#undef opendir
		44	#undef closedir
		45
21	#ifdef _WIN32	46	#ifdef _WIN32
22		47
23	# define EIO_STRUCT_DIRENT Direntry_t
24	# undef malloc
25	# undef free
26
27	// perl overrides all those nice win32 functions	48	// perl overrides all those nice libc functions
		49
		50	#undef malloc
		51	#undef free
28	# undef open	52	#undef open
29	# undef read	53	#undef read
30	# undef write	54	#undef write
31	# undef send	55	#undef send
32	# undef recv	56	#undef recv
33	# undef stat	57	#undef stat
		58	#undef lstat
34	# undef fstat	59	#undef fstat
35	# define lstat stat
36	# undef truncate	60	#undef truncate
37	# undef ftruncate	61	#undef ftruncate
38	# undef open	62	#undef open
		63	#undef link
39	# undef close	64	#undef close
40	# undef unlink	65	#undef unlink
		66	#undef mkdir
41	# undef rmdir	67	#undef rmdir
42	# undef rename	68	#undef rename
43	# undef lseek	69	#undef lseek
		70	#undef opendir
		71	#undef readdir
		72	#undef closedir
		73	#undef chmod
		74	#undef fchmod
		75	#undef dup
		76	#undef dup2
		77	#undef abort
		78	#undef pipe
44		79
45	# define chown(a,b,c) (errno = ENOSYS, -1)	80	#define EIO_STRUCT_STAT struct _stati64
46	# define fchown(a,b,c) (errno = ENOSYS, -1)	81	#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		82
59	#else	83	#else
60		84
61	# include <sys/time.h>	85	#include <sys/time.h>
62	# include <sys/select.h>	86	#include <sys/select.h>
63	# include <unistd.h>	87	#include <unistd.h>
64	# include <utime.h>	88	#include <utime.h>
65	# include <signal.h>	89	#include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent
67		90
68	#endif
69
70	#define EIO_STRUCT_STAT Stat_t	91	#define EIO_STRUCT_STAT Stat_t
71		92
72	/* use NV for 32 bit perls as it allows larger offsets */	93	#endif
73	#if IVSIZE >= 8	94
74	# define SvVAL64 SvIV	95	/*****************************************************************************/
		96
		97	#if __GNUC__ >= 3
		98	# define expect(expr,value) __builtin_expect ((expr),(value))
75	#else	99	#else
76	# define SvVAL64 SvNV	100	# define expect(expr,value) (expr)
77	#endif	101	#endif
78		102
79	static HV *stash;	103	#define expect_false(expr) expect ((expr) != 0, 0)
		104	#define expect_true(expr) expect ((expr) != 0, 1)
		105
		106	/*****************************************************************************/
		107
80	typedef SV SV8; /* byte-sv, used for argument-checking */	108	typedef SV SV8; /* byte-sv, used for argument-checking */
		109	typedef int aio_rfd; /* read file desriptor */
		110	typedef int aio_wfd; /* write file descriptor */
81		111
82	#define AIO_REQ_KLASS "IO::AIO::REQ"	112	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
83	#define AIO_GRP_KLASS "IO::AIO::GRP"
84		113
85	#define EIO_REQ_MEMBERS \	114	#define EIO_REQ_MEMBERS \
86	SV *callback; \	115	SV *callback; \
87	SV *sv1, *sv2; \	116	SV *sv1, *sv2; \
		117	SV *sv3, *sv4; \
88	STRLEN stroffset; \	118	STRLEN stroffset; \
89	SV *self;	119	SV *self;
90		120
91	#define EIO_NO_WRAPPERS 1	121	#define EIO_NO_WRAPPERS 1
92		122
		123	#include "libeio/config.h"
93	#include "libeio/eio.h"	124	#include "libeio/eio.h"
94		125
95	static int req_invoke (eio_req *req);	126	static int req_invoke (eio_req *req);
96	#define EIO_FINISH(req) req_invoke (req)	127	#define EIO_FINISH(req) req_invoke (req)
97	static void aio_grp_feed (eio_req *grp);
98	#define EIO_FEED(req) aio_grp_feed (req)
99	static void req_destroy (eio_req *grp);	128	static void req_destroy (eio_req *grp);
100	#define EIO_DESTROY(req) req_destroy (req)	129	#define EIO_DESTROY(req) req_destroy (req)
		130
		131	#include "libeio/eio.c"
		132
		133	#if !HAVE_POSIX_FADVISE
		134	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		135	#endif
		136
		137	#if !HAVE_POSIX_MADVISE
		138	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		139	#endif
		140
		141	#ifndef MAP_ANONYMOUS
		142	# ifdef MAP_ANON
		143	# define MAP_ANONYMOUS MAP_ANON
		144	# else
		145	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		146	# endif
		147	#endif
		148
		149	/* defines all sorts of constants to 0 unless they are already defined */
		150	#include "def0.h"
		151
		152	#ifndef makedev
		153	# define makedev(maj,min) (((maj) << 8) | (min))
		154	#endif
		155	#ifndef major
		156	# define major(dev) ((dev) >> 8)
		157	#endif
		158	#ifndef minor
		159	# define minor(dev) ((dev) & 0xff)
		160	#endif
		161
		162	#if PAGESIZE <= 0
		163	# define PAGESIZE sysconf (_SC_PAGESIZE)
		164	#endif
		165
		166	/*****************************************************************************/
		167
		168	static void
		169	fiemap (eio_req *req)
		170	{
		171	req->result = -1;
		172
		173	#if HAVE_FIEMAP
		174	/* assume some c99 */
		175	struct fiemap *fiemap = 0;
		176	size_t end_offset;
		177	int count = req->int3;
		178
		179	req->flags |= EIO_FLAG_PTR1_FREE;
		180
		181	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		182	/* increase in 3.5kb steps */
		183	if (count < 0)
		184	count = 8;
		185
		186	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		187	errno = ENOMEM;
		188	if (!fiemap)
		189	return;
		190
		191	req->ptr1 = fiemap;
		192
		193	fiemap->fm_start = req->offs;
		194	fiemap->fm_length = req->size;
		195	fiemap->fm_flags = req->int2;
		196	fiemap->fm_extent_count = count;
		197
		198	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		199	return;
		200
		201	if (req->int3 >= 0 /* not autosizing */
		202	|| !fiemap->fm_mapped_extents /* no more extents */
		203	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		204	goto done;
		205
		206	/* else we have to loop -
		207	* it would be tempting (actually I tried that first) to just query the
		208	* number of extents needed, but linux often feels like not returning all
		209	* extents, without telling us it left any out. this complicates
		210	* this quite a bit.
		211	*/
		212
		213	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		214
		215	for (;;)
		216	{
		217	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		218	char scratch[3072];
		219	struct fiemap *incmap = (struct fiemap *)scratch;
		220
		221	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		222	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		223	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		224	incmap->fm_flags = fiemap->fm_flags;
		225	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		226
		227	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		228	return;
		229
		230	if (!incmap->fm_mapped_extents)
		231	goto done;
		232
		233	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		234	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		235	errno = ENOMEM;
		236	if (!fiemap)
		237	return;
		238
		239	req->ptr1 = fiemap;
		240
		241	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		242	{
		243	struct fiemap_extent *e = incmap->fm_extents + count;
		244
		245	if (e->fe_logical + e->fe_length >= end_offset)
		246	goto done;
		247
		248	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		249
		250	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		251	goto done;
		252
		253	}
		254	}
		255
		256	done:
		257	req->result = 0;
		258
		259	#else
		260	errno = ENOSYS;
		261	#endif
		262	}
		263
		264	/*****************************************************************************/
101		265
102	enum {	266	enum {
103	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	267	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
104	};	268	};
105		269
106	#include "libeio/eio.c"
107
108	typedef eio_req *aio_req;	270	typedef eio_req *aio_req;
109	typedef eio_req *aio_req_ornot;	271	typedef eio_req *aio_req_ornot;
		272	typedef eio_wd aio_wd;
110		273
111	static SV *on_next_submit;	274	static SV *on_next_submit;
112	static int next_pri = EIO_PRI_DEFAULT;	275	static int next_pri = EIO_PRI_DEFAULT;
113	static int max_outstanding;	276	static int max_outstanding;
114		277
115	static int respipe_osf [2], respipe [2] = { -1, -1 };	278	static s_epipe respipe;
116		279
117	static void req_destroy (aio_req req);	280	static void req_destroy (aio_req req);
118	static void req_cancel (aio_req req);	281	static void req_cancel (aio_req req);
119		282
120	static void want_poll (void)	283	static void
		284	want_poll (void)
121	{	285	{
122	/* write a dummy byte to the pipe so fh becomes ready */	286	/* write a dummy byte to the pipe so fh becomes ready */
123	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	287	s_epipe_signal (&respipe);
124	}	288	}
125		289
126	static void done_poll (void)	290	static void
		291	done_poll (void)
127	{	292	{
128	/* read any signals sent by the worker threads */	293	/* read any signals sent by the worker threads */
129	char buf [4];	294	s_epipe_drain (&respipe);
130	while (respipe_read (respipe [0], buf, 4) == 4)
131	;
132	}	295	}
133		296
134	/* must be called at most once */	297	/* must be called at most once */
135	static SV *req_sv (aio_req req, const char *klass)	298	static SV *
		299	req_sv (aio_req req, HV *stash)
136	{	300	{
137	if (!req->self)	301	if (!req->self)
138	{	302	{
139	req->self = (SV *)newHV ();	303	req->self = (SV *)newHV ();
140	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	304	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
141	}	305	}
142		306
143	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	307	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
144	}	308	}
145		309
146	static aio_req SvAIO_REQ (SV *sv)	310	static SV *
		311	newSVaio_wd (aio_wd wd)
		312	{
		313	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		314	}
		315
		316	static aio_req
		317	SvAIO_REQ (SV *sv)
147	{	318	{
148	MAGIC *mg;	319	MAGIC *mg;
149		320
150	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	321	if (!SvROK (sv)
		322	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		323	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		324	&& SvSTASH (SvRV (sv)) != aio_req_stash
		325	&& !sv_derived_from (sv, "IO::AIO::REQ")))
151	croak ("object of class " AIO_REQ_KLASS " expected");	326	croak ("object of class IO::AIO::REQ expected");
152		327
153	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	328	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
154		329
155	return mg ? (aio_req)mg->mg_ptr : 0;	330	return mg ? (aio_req)mg->mg_ptr : 0;
156	}	331	}
157		332
		333	static aio_wd
		334	SvAIO_WD (SV *sv)
		335	{
		336	if (!SvROK (sv)
		337	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		338	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		339	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		340
		341	return (aio_wd)(long)SvIVX (SvRV (sv));
		342	}
		343
		344	static void
158	static void aio_grp_feed (aio_req grp)	345	aio_grp_feed (aio_req grp)
159	{	346	{
160	if (grp->sv2 && SvOK (grp->sv2))	347	if (grp->sv2 && SvOK (grp->sv2))
161	{	348	{
162	dSP;	349	dSP;
163		350
164	ENTER;	351	ENTER;
165	SAVETMPS;	352	SAVETMPS;
166	PUSHMARK (SP);	353	PUSHMARK (SP);
167	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	354	XPUSHs (req_sv (grp, aio_grp_stash));
168	PUTBACK;	355	PUTBACK;
169	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	356	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
170	SPAGAIN;	357	SPAGAIN;
171	FREETMPS;	358	FREETMPS;
172	LEAVE;	359	LEAVE;
173	}	360	}
174	}	361	}
175		362
		363	static void
176	static void req_submit (eio_req *req)	364	req_submit (eio_req *req)
177	{	365	{
178	eio_submit (req);	366	eio_submit (req);
179		367
180	if (on_next_submit)	368	if (expect_false (on_next_submit))
181	{	369	{
182	dSP;	370	dSP;
183	SV *cb = sv_2mortal (on_next_submit);	371	SV *cb = sv_2mortal (on_next_submit);
184		372
185	on_next_submit = 0;	373	on_next_submit = 0;
…		…
188	PUTBACK;	376	PUTBACK;
189	call_sv (cb, G_DISCARD | G_EVAL);	377	call_sv (cb, G_DISCARD | G_EVAL);
190	}	378	}
191	}	379	}
192		380
		381	static int
193	static int req_invoke (eio_req *req)	382	req_invoke (eio_req *req)
194	{	383	{
195	dSP;
196
197	if (req->flags & FLAG_SV2_RO_OFF)	384	if (req->flags & FLAG_SV2_RO_OFF)
198	SvREADONLY_off (req->sv2);	385	SvREADONLY_off (req->sv2);
199		386
200	if (!EIO_CANCELLED (req) && SvOK (req->callback))	387	if (!EIO_CANCELLED (req) && req->callback)
201	{	388	{
		389	dSP;
		390	static SV *sv_result_cache; /* caches the result integer SV */
		391	SV *sv_result;
		392
202	ENTER;	393	ENTER;
203	SAVETMPS;	394	SAVETMPS;
204	PUSHMARK (SP);	395	PUSHMARK (SP);
205	EXTEND (SP, 1);	396	EXTEND (SP, 1);
206		397
		398	/* do not recreate the result IV from scratch each time */
		399	if (expect_true (sv_result_cache))
		400	{
		401	sv_result = sv_result_cache; sv_result_cache = 0;
		402	SvIV_set (sv_result, req->result);
		403	SvIOK_only (sv_result);
		404	}
		405	else
		406	{
		407	sv_result = newSViv (req->result);
		408	SvREADONLY_on (sv_result);
		409	}
		410
207	switch (req->type)	411	switch (req->type)
208	{	412	{
		413	case EIO_WD_OPEN:
		414	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		415	break;
		416
209	case EIO_READDIR:	417	case EIO_READDIR:
210	{	418	{
211	SV *rv = &PL_sv_undef;	419	SV *rv = &PL_sv_undef;
212		420
213	if (req->result >= 0)	421	if (req->result >= 0)
214	{	422	{
215	int i;	423	int i;
216	char *buf = req->ptr2;	424	char *names = (char *)req->ptr2;
		425	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
217	AV *av = newAV ();	426	AV *av = newAV ();
218		427
219	av_extend (av, req->result - 1);	428	av_extend (av, req->result - 1);
220		429
221	for (i = 0; i < req->result; ++i)	430	for (i = 0; i < req->result; ++i)
222	{	431	{
223	SV *sv = newSVpv (buf, 0);	432	if (req->int1 & EIO_READDIR_DENTS)
		433	{
		434	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
224		435
		436	if (req->int1 & EIO_READDIR_CUSTOM2)
		437	{
		438	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		439	AV *avent = newAV ();
		440
		441	av_extend (avent, 2);
		442
		443	if (!sv_type [ent->type])
		444	{
		445	sv_type [ent->type] = newSViv (ent->type);
		446	SvREADONLY_on (sv_type [ent->type]);
		447	}
		448
		449	av_store (avent, 0, namesv);
		450	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		451	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		452
		453	av_store (av, i, newRV_noinc ((SV *)avent));
		454	}
		455	else
225	av_store (av, i, sv);	456	av_store (av, i, namesv);
		457
		458	++ent;
		459	}
		460	else
		461	{
		462	SV *name = newSVpv (names, 0);
		463	av_store (av, i, name);
226	buf += SvCUR (sv) + 1;	464	names += SvCUR (name) + 1;
		465	}
227	}	466	}
228		467
229	rv = sv_2mortal (newRV_noinc ((SV *)av));	468	rv = sv_2mortal (newRV_noinc ((SV *)av));
230	}	469	}
231		470
232	PUSHs (rv);	471	PUSHs (rv);
		472
		473	if (req->int1 & EIO_READDIR_CUSTOM1)
		474	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
233	}	475	}
234	break;	476	break;
235		477
236	case EIO_OPEN:	478	case EIO_OPEN:
237	{	479	{
…		…
243	GV *gv = (GV *)sv_newmortal ();	485	GV *gv = (GV *)sv_newmortal ();
244	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	486	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
245	char sym [64];	487	char sym [64];
246	int symlen;	488	int symlen;
247		489
248	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	490	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
249	gv_init (gv, stash, sym, symlen, 0);	491	gv_init (gv, aio_stash, sym, symlen, 0);
250		492
251	symlen = snprintf (	493	symlen = snprintf (
252	sym,	494	sym,
253	sizeof (sym),	495	sizeof (sym),
254	"%s&=%d",	496	"%s&=%d",
255	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	497	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
256	req->result	498	(int)req->result
257	);	499	);
258		500
259	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	501	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
260	fh = (SV *)gv;	502	fh = (SV *)gv;
261	}	503	}
262		504
263	PUSHs (fh);	505	PUSHs (fh);
264	}	506	}
		507	break;
		508
		509	case EIO_STATVFS:
		510	case EIO_FSTATVFS:
		511	{
		512	SV *rv = &PL_sv_undef;
		513
		514	#ifndef _WIN32
		515	if (req->result >= 0)
		516	{
		517	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		518	HV *hv = newHV ();
		519	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		520	* chooses to make it a struct.
		521	*/
		522	unsigned long fsid = 0;
		523	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
		524
		525	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		526
		527	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		528	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		529	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		530	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		531	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		532	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		533	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		534	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		535	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		536	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		537	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		538	}
		539	#endif
		540
		541	PUSHs (rv);
		542	}
		543
265	break;	544	break;
266		545
267	case EIO_GROUP:	546	case EIO_GROUP:
268	req->int1 = 2; /* mark group as finished */	547	req->int1 = 2; /* mark group as finished */
269		548
…		…
281	case EIO_NOP:	560	case EIO_NOP:
282	case EIO_BUSY:	561	case EIO_BUSY:
283	break;	562	break;
284		563
285	case EIO_READLINK:	564	case EIO_READLINK:
		565	case EIO_REALPATH:
286	if (req->result > 0)	566	if (req->result > 0)
287	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	567	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
288	break;	568	break;
289		569
290	case EIO_STAT:	570	case EIO_STAT:
291	case EIO_LSTAT:	571	case EIO_LSTAT:
292	case EIO_FSTAT:	572	case EIO_FSTAT:
293	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	573	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		574
294	PL_laststatval = req->result;	575	if (!(PL_laststatval = req->result))
		576	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
295	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	577	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
296	PUSHs (sv_2mortal (newSViv (req->result)));	578
		579	PUSHs (sv_result);
297	break;	580	break;
298		581
		582	case EIO_SEEK:
		583	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		584	break;
		585
299	case EIO_READ:	586	case EIO_READ:
		587	{
300	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	588	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
301	*SvEND (req->sv2) = 0;	589	*SvEND (req->sv2) = 0;
302	PUSHs (sv_2mortal (newSViv (req->result)));	590	SvPOK_only (req->sv2);
		591	SvSETMAGIC (req->sv2);
		592	PUSHs (sv_result);
		593	}
303	break;	594	break;
304		595
305	case EIO_DUP2:	596	case EIO_CUSTOM:
		597	if (req->feed == fiemap)
		598	{
		599	#if HAVE_FIEMAP
		600	if (!req->result)
		601	{
		602	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		603
		604	if (fiemap->fm_extent_count)
		605	{
		606	AV *av = newAV ();
		607	int i;
		608
		609	while (fiemap->fm_mapped_extents)
		610	{
		611	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		612	AV *ext_av = newAV ();
		613
		614	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		615	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		616	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		617	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		618
		619	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		620	}
		621
		622	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		623	}
		624	else
		625	{
		626	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		627	PUSHs (sv_result);
		628	}
		629	}
		630	#endif
		631	}
		632	else
		633	PUSHs (sv_result);
		634	break;
		635
		636	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
306	if (req->result > 0)	637	if (req->result > 0)
307	req->result = 0;	638	SvIV_set (sv_result, 0);
308	/* FALLTHROUGH */	639	/* FALLTHROUGH */
309		640
310	default:	641	default:
311	PUSHs (sv_2mortal (newSViv (req->result)));	642	PUSHs (sv_result);
312	break;	643	break;
313	}	644	}
314		645
315	errno = req->errorno;	646	errno = req->errorno;
316		647
317	PUTBACK;	648	PUTBACK;
318	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	649	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
319	SPAGAIN;	650	SPAGAIN;
320		651
		652	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		653	SvREFCNT_dec (sv_result);
		654	else
		655	sv_result_cache = sv_result;
		656
321	FREETMPS;	657	FREETMPS;
322	LEAVE;	658	LEAVE;
323		659
324	PUTBACK;	660	PUTBACK;
325	}	661	}
326		662
327	return !!SvTRUE (ERRSV);	663	return !!SvTRUE (ERRSV);
328	}	664	}
329		665
		666	static void
330	static void req_destroy (aio_req req)	667	req_destroy (aio_req req)
331	{	668	{
332	if (req->self)	669	if (req->self)
333	{	670	{
334	sv_unmagic (req->self, PERL_MAGIC_ext);	671	sv_unmagic (req->self, PERL_MAGIC_ext);
335	SvREFCNT_dec (req->self);	672	SvREFCNT_dec (req->self);
336	}	673	}
337		674
338	SvREFCNT_dec (req->sv1);	675	SvREFCNT_dec (req->sv1);
339	SvREFCNT_dec (req->sv2);	676	SvREFCNT_dec (req->sv2);
		677	SvREFCNT_dec (req->sv3);
		678	SvREFCNT_dec (req->sv4);
340	SvREFCNT_dec (req->callback);	679	SvREFCNT_dec (req->callback);
341		680
342	Safefree (req);	681	free (req);
343	}	682	}
344		683
		684	static void
345	static void req_cancel_subs (aio_req grp)	685	req_cancel_subs (aio_req grp)
346	{	686	{
347	aio_req sub;
348
349	if (grp->type != EIO_GROUP)	687	if (grp->type != EIO_GROUP)
350	return;	688	return;
351		689
352	SvREFCNT_dec (grp->sv2);	690	SvREFCNT_dec (grp->sv2);
353	grp->sv2 = 0;	691	grp->sv2 = 0;
354		692
355	eio_grp_cancel (grp);	693	eio_grp_cancel (grp);
356	}	694	}
357		695
358	#ifdef USE_SOCKETS_AS_HANDLES	696	static void ecb_cold
359	# define TO_SOCKET(x) (win32_get_osfhandle (x))	697	create_respipe (void)
360	#else	698	{
361	# define TO_SOCKET(x) (x)	699	if (s_epipe_renew (&respipe))
362	#endif	700	croak ("IO::AIO: unable to initialize result pipe");
		701	}
363		702
364	static void	703	static void
365	create_respipe (void)	704	poll_wait (void)
366	{	705	{
367	int old_readfd = respipe [0];
368
369	if (respipe [1] >= 0)
370	respipe_close (TO_SOCKET (respipe [1]));
371
372	#ifdef _WIN32
373	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
374	#else
375	if (pipe (respipe))
376	#endif
377	croak ("unable to initialize result pipe");
378
379	if (old_readfd >= 0)
380	{
381	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
382	croak ("unable to initialize result pipe(2)");
383
384	respipe_close (respipe [0]);
385	respipe [0] = old_readfd;
386	}
387
388	#ifdef _WIN32
389	int arg = 1;
390	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
391	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
392	#else
393	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
394	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
395	#endif
396	croak ("unable to initialize result pipe(3)");
397
398	respipe_osf [0] = TO_SOCKET (respipe [0]);
399	respipe_osf [1] = TO_SOCKET (respipe [1]);
400	}
401
402	static void poll_wait (void)
403	{
404	fd_set rfd;
405
406	while (eio_nreqs ())	706	while (eio_nreqs ())
407	{	707	{
408	int size;	708	int size;
409		709
410	X_LOCK (reslock);	710	X_LOCK (reslock);
…		…
412	X_UNLOCK (reslock);	712	X_UNLOCK (reslock);
413		713
414	if (size)	714	if (size)
415	return;	715	return;
416		716
417	maybe_start_thread ();	717	etp_maybe_start_thread ();
418		718
419	FD_ZERO (&rfd);	719	s_epipe_wait (&respipe);
420	FD_SET (respipe [0], &rfd);
421
422	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
423	}	720	}
424	}	721	}
425		722
426	static int poll_cb (void)	723	static int
		724	poll_cb (void)
427	{	725	{
428	int res;	726	for (;;)
429
430	do
431	{	727	{
432	res = eio_poll ();	728	int res = eio_poll ();
433		729
434	if (res > 0)	730	if (res > 0)
435	croak (0);	731	croak (0);
		732
		733	if (!max_outstanding || max_outstanding > eio_nreqs ())
		734	return res;
		735
		736	poll_wait ();
436	}	737	}
437	while (max_outstanding && max_outstanding <= eio_nreqs ());
438
439	return res;
440	}	738	}
441		739
442	static void atfork_child (void)	740	static void ecb_cold
		741	reinit (void)
443	{	742	{
444	create_respipe ();	743	create_respipe ();
		744
		745	if (eio_init (want_poll, done_poll) < 0)
		746	croak ("IO::AIO: unable to initialise eio library");
		747	}
		748
		749	/*****************************************************************************/
		750
		751	#if !_POSIX_MAPPED_FILES
		752	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		753	# define munmap(addr,length) EIO_ENOSYS ()
		754	#endif
		755
		756	#if !_POSIX_MEMORY_PROTECTION
		757	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		758	# define PROT_NONE 0
		759	# define PROT_WRITE 0
		760	# define MAP_PRIVATE 0
		761	# define MAP_SHARED 0
		762	# define MAP_FIXED 0
		763	#endif
		764
		765	#define MMAP_MAGIC PERL_MAGIC_ext
		766
		767	static int ecb_cold
		768	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		769	{
		770	int old_errno = errno;
		771	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		772	errno = old_errno;
		773
		774	mg->mg_obj = 0; /* just in case */
		775
		776	SvREADONLY_off (sv);
		777
		778	if (SvPVX (sv) != mg->mg_ptr)
		779	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		780
		781	SvCUR_set (sv, 0);
		782	SvPVX (sv) = 0;
		783	SvOK_off (sv);
		784
		785	return 0;
		786	}
		787
		788	static MGVTBL mmap_vtbl = {
		789	0, 0, 0, 0, mmap_free
		790	};
		791
		792	/*****************************************************************************/
		793
		794	static SV *
		795	get_cb (SV *cb_sv)
		796	{
		797	SvGETMAGIC (cb_sv);
		798	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		799	}
		800
		801	static aio_req ecb_noinline
		802	dreq (SV *callback)
		803	{
		804	SV *cb_cv;
		805	aio_req req;
		806	int req_pri = next_pri;
		807	next_pri = EIO_PRI_DEFAULT;
		808
		809	cb_cv = get_cb (callback);
		810
		811	req = calloc (sizeof (*req), 1);
		812	if (!req)
		813	croak ("out of memory during eio_req allocation");
		814
		815	req->callback = SvREFCNT_inc (cb_cv);
		816	req->pri = req_pri;
		817
		818	return req;
445	}	819	}
446		820
447	#define dREQ \	821	#define dREQ \
448	aio_req req; \	822	aio_req req = dreq (callback); \
449	int req_pri = next_pri; \
450	next_pri = EIO_PRI_DEFAULT; \
451	\
452	if (SvOK (callback) && !SvROK (callback)) \
453	croak ("callback must be undef or of reference type"); \
454	\
455	Newz (0, req, 1, eio_req); \
456	if (!req) \
457	croak ("out of memory during eio_req allocation"); \
458	\
459	req->callback = newSVsv (callback); \
460	req->pri = req_pri
461		823
462	#define REQ_SEND \	824	#define REQ_SEND \
		825	PUTBACK; \
463	req_submit (req); \	826	req_submit (req); \
		827	SPAGAIN; \
464	\	828	\
465	if (GIMME_V != G_VOID) \	829	if (GIMME_V != G_VOID) \
466	XPUSHs (req_sv (req, AIO_REQ_KLASS));	830	XPUSHs (req_sv (req, aio_req_stash));
467		831
		832	ecb_inline void
		833	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		834	{
		835	if (expect_false (SvROK (path)))
		836	{
		837	SV *rv = SvRV (path);
		838	SV *wdob;
		839
		840	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		841	{
		842	path = AvARRAY (rv)[1];
		843	wdob = AvARRAY (rv)[0];
		844
		845	if (SvOK (wdob))
		846	{
		847	*wd = SvAIO_WD (wdob);
		848	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		849	}
		850	else
		851	*wd = EIO_INVALID_WD;
		852	}
		853	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		854	{
		855	*wd = (aio_wd)(long)SvIVX (rv);
		856	*wdsv = SvREFCNT_inc_NN (rv);
		857	*ptr = ".";
		858	return; /* path set to "." */
		859	}
		860	else
		861	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		862	}
		863
		864	*pathsv = newSVsv (path);
		865	*ptr = SvPVbyte_nolen (*pathsv);
		866	}
		867
		868	static void ecb_noinline
		869	req_set_path1 (aio_req req, SV *path)
		870	{
		871	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		872	}
		873
		874	static void ecb_noinline
		875	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		876	{
		877	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		878
		879	switch (SvTYPE (rv))
		880	{
		881	case SVt_PVIO:
		882	case SVt_PVLV:
		883	case SVt_PVGV:
		884	req->type = type_fh;
		885	req->sv1 = newSVsv (fh_or_path);
		886	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		887	break;
		888
		889	default:
		890	req->type = type_path;
		891	req_set_path1 (req, fh_or_path);
		892	break;
		893	}
		894	}
		895
		896	XS(boot_IO__AIO) ecb_cold;
		897
468	MODULE = IO::AIO PACKAGE = IO::AIO	898	MODULE = IO::AIO PACKAGE = IO::AIO
469		899
470	PROTOTYPES: ENABLE	900	PROTOTYPES: ENABLE
471		901
472	BOOT:	902	BOOT:
473	{	903	{
		904	static const struct {
		905	const char *name;
		906	IV iv;
		907	} *civ, const_iv[] = {
		908	# define const_niv(name, value) { # name, (IV) value },
		909	# define const_iv(name) { # name, (IV) name },
		910	# define const_eio(name) { # name, (IV) EIO_ ## name },
		911
		912	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		913
		914	const_iv (ENOSYS)
		915	const_iv (EXDEV)
		916	const_iv (EBADR)
		917
		918	const_iv (O_RDONLY)
		919	const_iv (O_WRONLY)
		920	const_iv (O_RDWR)
		921	const_iv (O_CREAT)
		922	const_iv (O_TRUNC)
		923	const_iv (O_EXCL)
		924	const_iv (O_APPEND)
		925
		926	const_iv (O_ASYNC)
		927	const_iv (O_DIRECT)
		928	const_iv (O_NOATIME)
		929
		930	const_iv (O_CLOEXEC)
		931	const_iv (O_NOCTTY)
		932	const_iv (O_NOFOLLOW)
		933	const_iv (O_NONBLOCK)
		934	const_iv (O_EXEC)
		935	const_iv (O_SEARCH)
		936	const_iv (O_DIRECTORY)
		937	const_iv (O_DSYNC)
		938	const_iv (O_RSYNC)
		939	const_iv (O_SYNC)
		940	const_iv (O_TTY_INIT)
		941
		942	const_iv (S_IFIFO)
		943	const_iv (S_IFCHR)
		944	const_iv (S_IFBLK)
		945	const_iv (S_IFLNK)
		946	const_iv (S_IFREG)
		947	const_iv (S_IFDIR)
		948	const_iv (S_IFWHT)
		949	const_iv (S_IFSOCK)
		950	const_iv (S_IFMT)
		951
		952	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		953	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		954	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		955	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		956	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		957	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		958
		959	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		960	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		961	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		962	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		963	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		964
		965	const_iv (ST_RDONLY)
		966	const_iv (ST_NOSUID)
		967	const_iv (ST_NODEV)
		968	const_iv (ST_NOEXEC)
		969	const_iv (ST_SYNCHRONOUS)
		970	const_iv (ST_MANDLOCK)
		971	const_iv (ST_WRITE)
		972	const_iv (ST_APPEND)
		973	const_iv (ST_IMMUTABLE)
		974	const_iv (ST_NOATIME)
		975	const_iv (ST_NODIRATIME)
		976	const_iv (ST_RELATIME)
		977
		978	const_iv (PROT_NONE)
		979	const_iv (PROT_EXEC)
		980	const_iv (PROT_READ)
		981	const_iv (PROT_WRITE)
		982
		983	/*const_iv (MAP_FIXED)*/
		984	const_iv (MAP_PRIVATE)
		985	const_iv (MAP_SHARED)
		986	const_iv (MAP_ANONYMOUS)
		987
		988	/* linuxish */
		989	const_iv (MAP_HUGETLB)
		990	const_iv (MAP_LOCKED)
		991	const_iv (MAP_NORESERVE)
		992	const_iv (MAP_POPULATE)
		993	const_iv (MAP_NONBLOCK)
		994
		995	const_iv (FIEMAP_FLAG_SYNC)
		996	const_iv (FIEMAP_FLAG_XATTR)
		997	const_iv (FIEMAP_FLAGS_COMPAT)
		998	const_iv (FIEMAP_EXTENT_LAST)
		999	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1000	const_iv (FIEMAP_EXTENT_DELALLOC)
		1001	const_iv (FIEMAP_EXTENT_ENCODED)
		1002	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1003	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1004	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1005	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1006	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1007	const_iv (FIEMAP_EXTENT_MERGED)
		1008	const_iv (FIEMAP_EXTENT_SHARED)
		1009
		1010	const_iv (SPLICE_F_MOVE)
		1011	const_iv (SPLICE_F_NONBLOCK)
		1012	const_iv (SPLICE_F_MORE)
		1013	const_iv (SPLICE_F_GIFT)
		1014
		1015	const_iv (SEEK_DATA)
		1016	const_iv (SEEK_HOLE)
		1017
		1018	/* libeio constants */
		1019	const_eio (SEEK_SET)
		1020	const_eio (SEEK_CUR)
		1021	const_eio (SEEK_END)
		1022
		1023	const_eio (MCL_FUTURE)
		1024	const_eio (MCL_CURRENT)
		1025
		1026	const_eio (MS_ASYNC)
		1027	const_eio (MS_INVALIDATE)
		1028	const_eio (MS_SYNC)
		1029
		1030	const_eio (MT_MODIFY)
		1031
		1032	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		1033	const_eio (SYNC_FILE_RANGE_WRITE)
		1034	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1035
		1036	const_eio (FALLOC_FL_KEEP_SIZE)
		1037	const_eio (FALLOC_FL_PUNCH_HOLE)
		1038
		1039	const_eio (READDIR_DENTS)
		1040	const_eio (READDIR_DIRS_FIRST)
		1041	const_eio (READDIR_STAT_ORDER)
		1042	const_eio (READDIR_FOUND_UNKNOWN)
		1043
		1044	const_eio (DT_UNKNOWN)
		1045	const_eio (DT_FIFO)
		1046	const_eio (DT_CHR)
		1047	const_eio (DT_DIR)
		1048	const_eio (DT_BLK)
		1049	const_eio (DT_REG)
		1050	const_eio (DT_LNK)
		1051	const_eio (DT_SOCK)
		1052	const_eio (DT_WHT)
		1053	};
		1054
474	stash = gv_stashpv ("IO::AIO", 1);	1055	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1056	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1057	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1058	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
475		1059
476	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1060	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
477	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1061	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
478	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
479	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
480	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
481	#ifndef _WIN32
482	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
483	#endif
484		1062
485	create_respipe ();	1063	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
486		1064
487	if (eio_init (want_poll, done_poll) < 0)	1065	reinit ();
488	croak ("IO::AIO: unable to initialise eio library");
489
490	/* atfork child called in fifo order, so before eio's handler */
491	X_THREAD_ATFORK (0, 0, atfork_child);
492	}	1066	}
493		1067
494	void	1068	void
		1069	reinit ()
		1070	PROTOTYPE:
		1071
		1072	void
495	max_poll_reqs (int nreqs)	1073	max_poll_reqs (unsigned int nreqs)
496	PROTOTYPE: $	1074	PROTOTYPE: $
497	CODE:	1075	CODE:
498	eio_set_max_poll_reqs (nreqs);	1076	eio_set_max_poll_reqs (nreqs);
499		1077
500	void	1078	void
…		…
502	PROTOTYPE: $	1080	PROTOTYPE: $
503	CODE:	1081	CODE:
504	eio_set_max_poll_time (nseconds);	1082	eio_set_max_poll_time (nseconds);
505		1083
506	void	1084	void
507	min_parallel (int nthreads)	1085	min_parallel (unsigned int nthreads)
508	PROTOTYPE: $	1086	PROTOTYPE: $
509	CODE:	1087	CODE:
510	eio_set_min_parallel (nthreads);	1088	eio_set_min_parallel (nthreads);
511		1089
512	void	1090	void
513	max_parallel (int nthreads)	1091	max_parallel (unsigned int nthreads)
514	PROTOTYPE: $	1092	PROTOTYPE: $
515	CODE:	1093	CODE:
516	eio_set_max_parallel (nthreads);	1094	eio_set_max_parallel (nthreads);
517		1095
518	void	1096	void
519	max_idle (int nthreads)	1097	max_idle (unsigned int nthreads)
520	PROTOTYPE: $	1098	PROTOTYPE: $
521	CODE:	1099	CODE:
522	eio_set_max_idle (nthreads);	1100	eio_set_max_idle (nthreads);
523		1101
524	void	1102	void
		1103	idle_timeout (unsigned int seconds)
		1104	PROTOTYPE: $
		1105	CODE:
		1106	eio_set_idle_timeout (seconds);
		1107
		1108	void
525	max_outstanding (int maxreqs)	1109	max_outstanding (unsigned int maxreqs)
526	PROTOTYPE: $	1110	PROTOTYPE: $
527	CODE:	1111	CODE:
528	max_outstanding = maxreqs;	1112	max_outstanding = maxreqs;
529		1113
530	void	1114	void
		1115	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1116	PPCODE:
		1117	{
		1118	dREQ;
		1119
		1120	req->type = EIO_WD_OPEN;
		1121	req_set_path1 (req, pathname);
		1122
		1123	REQ_SEND;
		1124	}
		1125
		1126	void
531	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1127	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
532	PROTOTYPE: $$$;$
533	PPCODE:	1128	PPCODE:
534	{	1129	{
535	dREQ;	1130	dREQ;
536		1131
537	req->type = EIO_OPEN;	1132	req->type = EIO_OPEN;
538	req->sv1 = newSVsv (pathname);	1133	req_set_path1 (req, pathname);
539	req->ptr1 = SvPVbyte_nolen (req->sv1);
540	req->int1 = flags;	1134	req->int1 = flags;
541	req->int2 = mode;	1135	req->int2 = mode;
542		1136
543	REQ_SEND;	1137	REQ_SEND;
544	}	1138	}
545		1139
546	void	1140	void
547	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1141	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
548	PROTOTYPE: $;$
549	ALIAS:	1142	ALIAS:
550	aio_fsync = EIO_FSYNC	1143	aio_fsync = EIO_FSYNC
551	aio_fdatasync = EIO_FDATASYNC	1144	aio_fdatasync = EIO_FDATASYNC
		1145	aio_syncfs = EIO_SYNCFS
552	PPCODE:	1146	PPCODE:
553	{	1147	{
		1148	int fd = s_fileno_croak (fh, 0);
554	dREQ;	1149	dREQ;
555		1150
556	req->type = ix;	1151	req->type = ix;
557	req->sv1 = newSVsv (fh);	1152	req->sv1 = newSVsv (fh);
558	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1153	req->int1 = fd;
559		1154
560	REQ_SEND (req);	1155	REQ_SEND;
		1156	}
		1157
		1158	void
		1159	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		1160	PPCODE:
		1161	{
		1162	int fd = s_fileno_croak (fh, 0);
		1163	dREQ;
		1164
		1165	req->type = EIO_SYNC_FILE_RANGE;
		1166	req->sv1 = newSVsv (fh);
		1167	req->int1 = fd;
		1168	req->offs = offset;
		1169	req->size = nbytes;
		1170	req->int2 = flags;
		1171
		1172	REQ_SEND;
		1173	}
		1174
		1175	void
		1176	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1177	PPCODE:
		1178	{
		1179	int fd = s_fileno_croak (fh, 0);
		1180	dREQ;
		1181
		1182	req->type = EIO_FALLOCATE;
		1183	req->sv1 = newSVsv (fh);
		1184	req->int1 = fd;
		1185	req->int2 = mode;
		1186	req->offs = offset;
		1187	req->size = len;
		1188
		1189	REQ_SEND;
561	}	1190	}
562		1191
563	void	1192	void
564	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1193	aio_close (SV *fh, SV *callback=&PL_sv_undef)
565	PROTOTYPE: $;$
566	PPCODE:	1194	PPCODE:
567	{	1195	{
568	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1196	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1197	int fd = s_fileno_croak (fh, 0);
569	dREQ;	1198	dREQ;
570		1199
571	if (close_pipe < 0)	1200	if (expect_false (close_fd < 0))
572	{	1201	{
573	int pipefd [2];	1202	int pipefd [2];
574		1203
		1204	if (
		1205	#ifdef _WIN32
		1206	_pipe (pipefd, 1, _O_BINARY) < 0
		1207	#else
575	if (pipe (pipefd) < 0	1208	pipe (pipefd) < 0
576	|| close (pipefd [1]) < 0
577	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1209	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1210	#endif
		1211	|| close (pipefd [1]) < 0
		1212	)
578	abort (); /*D*/	1213	abort (); /*D*/
579		1214
580	close_pipe = pipefd [0];	1215	close_fd = pipefd [0];
581	}	1216	}
582		1217
583	req->type = EIO_DUP2;	1218	req->type = EIO_DUP2;
584	req->int1 = close_pipe;	1219	req->int1 = close_fd;
585	req->sv2 = newSVsv (fh);	1220	req->sv2 = newSVsv (fh);
586	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1221	req->int2 = fd;
587		1222
588	REQ_SEND (req);	1223	REQ_SEND;
		1224	}
		1225
		1226	void
		1227	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1228	PPCODE:
		1229	{
		1230	int fd = s_fileno_croak (fh, 0);
		1231	dREQ;
		1232
		1233	req->type = EIO_SEEK;
		1234	req->sv1 = newSVsv (fh);
		1235	req->int1 = fd;
		1236	req->offs = SvVAL64 (offset);
		1237	req->int2 = whence;
		1238
		1239	REQ_SEND;
589	}	1240	}
590		1241
591	void	1242	void
592	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1243	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
593	ALIAS:	1244	ALIAS:
594	aio_read = EIO_READ	1245	aio_read = EIO_READ
595	aio_write = EIO_WRITE	1246	aio_write = EIO_WRITE
596	PROTOTYPE: $$$$$;$
597	PPCODE:	1247	PPCODE:
598	{	1248	{
599	STRLEN svlen;	1249	STRLEN svlen;
		1250	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
600	char *svptr = SvPVbyte (data, svlen);	1251	char *svptr = SvPVbyte (data, svlen);
601	UV len = SvUV (length);	1252	UV len = SvUV (length);
602
603	SvUPGRADE (data, SVt_PV);
604	SvPOK_on (data);
605		1253
606	if (dataoffset < 0)	1254	if (dataoffset < 0)
607	dataoffset += svlen;	1255	dataoffset += svlen;
608		1256
609	if (dataoffset < 0 || dataoffset > svlen)	1257	if (dataoffset < 0 || dataoffset > svlen)
…		…
615	if (!SvOK (length) || len + dataoffset > svlen)	1263	if (!SvOK (length) || len + dataoffset > svlen)
616	len = svlen - dataoffset;	1264	len = svlen - dataoffset;
617	}	1265	}
618	else	1266	else
619	{	1267	{
620	/* read: grow scalar as necessary */	1268	/* read: check type and grow scalar as necessary */
		1269	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
621	svptr = SvGROW (data, len + dataoffset + 1);	1270	svptr = sv_grow (data, len + dataoffset + 1);
		1271	else if (SvCUR (data) < len + dataoffset)
		1272	croak ("length + dataoffset outside of scalar, and cannot grow");
622	}	1273	}
623
624	if (len < 0)
625	croak ("length must not be negative");
626		1274
627	{	1275	{
628	dREQ;	1276	dREQ;
629		1277
630	req->type = ix;	1278	req->type = ix;
631	req->sv1 = newSVsv (fh);	1279	req->sv1 = newSVsv (fh);
632	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1280	req->int1 = fd;
633	: IoOFP (sv_2io (fh)));
634	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1281	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
635	req->size = len;	1282	req->size = len;
636	req->sv2 = SvREFCNT_inc (data);	1283	req->sv2 = SvREFCNT_inc (data);
637	req->ptr2 = (char *)svptr + dataoffset;	1284	req->ptr2 = (char *)svptr + dataoffset;
638	req->stroffset = dataoffset;	1285	req->stroffset = dataoffset;
…		…
646	REQ_SEND;	1293	REQ_SEND;
647	}	1294	}
648	}	1295	}
649		1296
650	void	1297	void
651	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1298	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
652	PROTOTYPE: $$;$	1299	ALIAS:
		1300	aio_readlink = EIO_READLINK
		1301	aio_realpath = EIO_REALPATH
653	PPCODE:	1302	PPCODE:
654	{	1303	{
655	SV *data;
656	dREQ;	1304	dREQ;
657		1305
658	req->type = EIO_READLINK;	1306	req->type = ix;
659	req->sv1 = newSVsv (path);	1307	req_set_path1 (req, pathname);
660	req->ptr1 = SvPVbyte_nolen (req->sv1);
661		1308
662	REQ_SEND;	1309	REQ_SEND;
663	}	1310	}
664		1311
665	void	1312	void
666	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1313	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
667	PROTOTYPE: $$$$;$
668	PPCODE:	1314	PPCODE:
669	{	1315	{
		1316	int ifd = s_fileno_croak (in_fh , 0);
		1317	int ofd = s_fileno_croak (out_fh, 1);
670	dREQ;	1318	dREQ;
671		1319
672	req->type = EIO_SENDFILE;	1320	req->type = EIO_SENDFILE;
673	req->sv1 = newSVsv (out_fh);	1321	req->sv1 = newSVsv (out_fh);
674	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1322	req->int1 = ofd;
675	req->sv2 = newSVsv (in_fh);	1323	req->sv2 = newSVsv (in_fh);
676	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1324	req->int2 = ifd;
677	req->offs = SvVAL64 (in_offset);	1325	req->offs = in_offset;
678	req->size = length;	1326	req->size = length;
679		1327
680	REQ_SEND;	1328	REQ_SEND;
681	}	1329	}
682		1330
683	void	1331	void
684	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1332	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
685	PROTOTYPE: $$$;$
686	PPCODE:	1333	PPCODE:
687	{	1334	{
		1335	int fd = s_fileno_croak (fh, 0);
688	dREQ;	1336	dREQ;
689		1337
690	req->type = EIO_READAHEAD;	1338	req->type = EIO_READAHEAD;
691	req->sv1 = newSVsv (fh);	1339	req->sv1 = newSVsv (fh);
692	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1340	req->int1 = fd;
693	req->offs = SvVAL64 (offset);	1341	req->offs = offset;
694	req->size = length;	1342	req->size = length;
695		1343
696	REQ_SEND;	1344	REQ_SEND;
697	}	1345	}
698		1346
699	void	1347	void
700	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1348	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
701	ALIAS:	1349	ALIAS:
702	aio_stat = EIO_STAT	1350	aio_stat = EIO_STAT
703	aio_lstat = EIO_LSTAT	1351	aio_lstat = EIO_LSTAT
		1352	aio_statvfs = EIO_STATVFS
704	PPCODE:	1353	PPCODE:
705	{	1354	{
706	dREQ;	1355	dREQ;
707		1356
708	req->sv1 = newSVsv (fh_or_path);	1357	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
709
710	if (SvPOK (req->sv1))
711	{
712	req->type = ix;
713	req->ptr1 = SvPVbyte_nolen (req->sv1);
714	}
715	else
716	{
717	req->type = EIO_FSTAT;
718	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
719	}
720		1358
721	REQ_SEND;	1359	REQ_SEND;
722	}	1360	}
		1361
		1362	UV
		1363	major (UV dev)
		1364	ALIAS:
		1365	minor = 1
		1366	CODE:
		1367	RETVAL = ix ? major (dev) : minor (dev);
		1368	OUTPUT:
		1369	RETVAL
		1370
		1371	UV
		1372	makedev (UV maj, UV min)
		1373	CODE:
		1374	RETVAL = makedev (maj, min);
		1375	OUTPUT:
		1376	RETVAL
723		1377
724	void	1378	void
725	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1379	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
726	PPCODE:	1380	PPCODE:
727	{	1381	{
728	dREQ;	1382	dREQ;
729		1383
730	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1384	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
731	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1385	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
732	req->sv1 = newSVsv (fh_or_path);	1386	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
733
734	if (SvPOK (req->sv1))
735	{
736	req->type = EIO_UTIME;
737	req->ptr1 = SvPVbyte_nolen (req->sv1);
738	}
739	else
740	{
741	req->type = EIO_FUTIME;
742	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
743	}
744		1387
745	REQ_SEND;	1388	REQ_SEND;
746	}	1389	}
747		1390
748	void	1391	void
749	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1392	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
750	PPCODE:	1393	PPCODE:
751	{	1394	{
752	dREQ;	1395	dREQ;
753		1396
754	req->sv1 = newSVsv (fh_or_path);
755	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1397	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
756		1398	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
757	if (SvPOK (req->sv1))
758	{
759	req->type = EIO_TRUNCATE;
760	req->ptr1 = SvPVbyte_nolen (req->sv1);
761	}
762	else
763	{
764	req->type = EIO_FTRUNCATE;
765	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
766	}
767		1399
768	REQ_SEND;	1400	REQ_SEND;
769	}	1401	}
770		1402
771	void	1403	void
772	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1404	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
773	ALIAS:
774	aio_chmod = EIO_CHMOD
775	aio_mkdir = EIO_MKDIR
776	PPCODE:	1405	PPCODE:
777	{	1406	{
778	dREQ;	1407	dREQ;
779		1408
780	req->int2 = mode;	1409	req->int2 = mode;
781	req->sv1 = newSVsv (fh_or_path);	1410	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
782
783	if (SvPOK (req->sv1))
784	{
785	req->type = ix;
786	req->ptr1 = SvPVbyte_nolen (req->sv1);
787	}
788	else
789	{
790	req->type = EIO_FCHMOD;
791	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
792	}
793		1411
794	REQ_SEND;	1412	REQ_SEND;
795	}	1413	}
796		1414
797	void	1415	void
…		…
800	{	1418	{
801	dREQ;	1419	dREQ;
802		1420
803	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1421	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
804	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1422	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
805	req->sv1 = newSVsv (fh_or_path);	1423	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
806		1424
807	if (SvPOK (req->sv1))	1425	REQ_SEND;
808	{	1426	}
		1427
		1428	void
		1429	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1430	PPCODE:
		1431	{
		1432	dREQ;
		1433
		1434	req->type = EIO_READDIR;
		1435	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1436
		1437	if (flags & EIO_READDIR_DENTS)
		1438	req->int1 |= EIO_READDIR_CUSTOM2;
		1439
		1440	req_set_path1 (req, pathname);
		1441
		1442	REQ_SEND;
		1443	}
		1444
		1445	void
		1446	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1447	PPCODE:
		1448	{
		1449	dREQ;
		1450
809	req->type = EIO_CHOWN;	1451	req->type = EIO_MKDIR;
810	req->ptr1 = SvPVbyte_nolen (req->sv1);	1452	req->int2 = mode;
811	}	1453	req_set_path1 (req, pathname);
812	else
813	{
814	req->type = EIO_FCHOWN;
815	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
816	}
817		1454
818	REQ_SEND;	1455	REQ_SEND;
819	}	1456	}
820		1457
821	void	1458	void
…		…
827	PPCODE:	1464	PPCODE:
828	{	1465	{
829	dREQ;	1466	dREQ;
830		1467
831	req->type = ix;	1468	req->type = ix;
832	req->sv1 = newSVsv (pathname);	1469	req_set_path1 (req, pathname);
833	req->ptr1 = SvPVbyte_nolen (req->sv1);
834		1470
835	REQ_SEND;	1471	REQ_SEND;
836	}	1472	}
837		1473
838	void	1474	void
…		…
841	aio_link = EIO_LINK	1477	aio_link = EIO_LINK
842	aio_symlink = EIO_SYMLINK	1478	aio_symlink = EIO_SYMLINK
843	aio_rename = EIO_RENAME	1479	aio_rename = EIO_RENAME
844	PPCODE:	1480	PPCODE:
845	{	1481	{
		1482	eio_wd wd2 = 0;
846	dREQ;	1483	dREQ;
847		1484
848	req->type = ix;	1485	req->type = ix;
849	req->sv1 = newSVsv (oldpath);	1486	req_set_path1 (req, oldpath);
850	req->ptr1 = SvPVbyte_nolen (req->sv1);	1487	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
851	req->sv2 = newSVsv (newpath);	1488	req->int3 = (long)wd2;
852	req->ptr2 = SvPVbyte_nolen (req->sv2);
853		1489
854	REQ_SEND;	1490	REQ_SEND;
855	}	1491	}
856		1492
857	void	1493	void
…		…
859	PPCODE:	1495	PPCODE:
860	{	1496	{
861	dREQ;	1497	dREQ;
862		1498
863	req->type = EIO_MKNOD;	1499	req->type = EIO_MKNOD;
864	req->sv1 = newSVsv (pathname);
865	req->ptr1 = SvPVbyte_nolen (req->sv1);
866	req->int2 = (mode_t)mode;	1500	req->int2 = (mode_t)mode;
867	req->offs = dev;	1501	req->offs = dev;
		1502	req_set_path1 (req, pathname);
868		1503
869	REQ_SEND;	1504	REQ_SEND;
870	}	1505	}
871		1506
872	void	1507	void
		1508	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1509	ALIAS:
		1510	aio_mtouch = EIO_MTOUCH
		1511	aio_msync = EIO_MSYNC
		1512	PPCODE:
		1513	{
		1514	STRLEN svlen;
		1515	char *svptr = SvPVbyte (data, svlen);
		1516	UV len = SvUV (length);
		1517
		1518	if (offset < 0)
		1519	offset += svlen;
		1520
		1521	if (offset < 0 || offset > svlen)
		1522	croak ("offset outside of scalar");
		1523
		1524	if (!SvOK (length) || len + offset > svlen)
		1525	len = svlen - offset;
		1526
		1527	{
		1528	dREQ;
		1529
		1530	req->type = ix;
		1531	req->sv2 = SvREFCNT_inc (data);
		1532	req->ptr2 = (char *)svptr + offset;
		1533	req->size = len;
		1534	req->int1 = flags;
		1535
		1536	REQ_SEND;
		1537	}
		1538	}
		1539
		1540	void
		1541	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1542	PPCODE:
		1543	{
		1544	STRLEN svlen;
		1545	char *svptr = SvPVbyte (data, svlen);
		1546	UV len = SvUV (length);
		1547
		1548	if (offset < 0)
		1549	offset += svlen;
		1550
		1551	if (offset < 0 || offset > svlen)
		1552	croak ("offset outside of scalar");
		1553
		1554	if (!SvOK (length) || len + offset > svlen)
		1555	len = svlen - offset;
		1556
		1557	{
		1558	dREQ;
		1559
		1560	req->type = EIO_MLOCK;
		1561	req->sv2 = SvREFCNT_inc (data);
		1562	req->ptr2 = (char *)svptr + offset;
		1563	req->size = len;
		1564
		1565	REQ_SEND;
		1566	}
		1567	}
		1568
		1569	void
		1570	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1571	PPCODE:
		1572	{
		1573	dREQ;
		1574
		1575	req->type = EIO_MLOCKALL;
		1576	req->int1 = flags;
		1577
		1578	REQ_SEND;
		1579	}
		1580
		1581	void
		1582	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1583	PPCODE:
		1584	{
		1585	int fd = s_fileno_croak (fh, 0);
		1586	dREQ;
		1587
		1588	req->type = EIO_CUSTOM;
		1589	req->sv1 = newSVsv (fh);
		1590	req->int1 = fd;
		1591
		1592	req->feed = fiemap;
		1593	#if HAVE_FIEMAP
		1594	/* keep our fingers crossed that the next two types are 64 bit */
		1595	req->offs = start;
		1596	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1597	req->int2 = flags;
		1598	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1599	#endif
		1600
		1601	REQ_SEND;
		1602	}
		1603
		1604	void
873	aio_busy (double delay, SV *callback=&PL_sv_undef)	1605	aio_busy (double delay, SV *callback=&PL_sv_undef)
874	PPCODE:	1606	PPCODE:
875	{	1607	{
876	dREQ;	1608	dREQ;
877		1609
…		…
881	REQ_SEND;	1613	REQ_SEND;
882	}	1614	}
883		1615
884	void	1616	void
885	aio_group (SV *callback=&PL_sv_undef)	1617	aio_group (SV *callback=&PL_sv_undef)
886	PROTOTYPE: ;$
887	PPCODE:	1618	PPCODE:
888	{	1619	{
889	dREQ;	1620	dREQ;
890		1621
891	req->type = EIO_GROUP;	1622	req->type = EIO_GROUP;
892		1623
		1624	PUTBACK;
893	eio_submit (req);	1625	req_submit (req);
		1626	SPAGAIN;
		1627
894	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1628	XPUSHs (req_sv (req, aio_grp_stash));
895	}	1629	}
896		1630
897	void	1631	void
898	aio_nop (SV *callback=&PL_sv_undef)	1632	aio_nop (SV *callback=&PL_sv_undef)
899	ALIAS:	1633	ALIAS:
…		…
908	REQ_SEND;	1642	REQ_SEND;
909	}	1643	}
910		1644
911	int	1645	int
912	aioreq_pri (int pri = 0)	1646	aioreq_pri (int pri = 0)
913	PROTOTYPE: ;$
914	CODE:	1647	CODE:
915	RETVAL = next_pri;	1648	RETVAL = next_pri;
916	if (items > 0)	1649	if (items > 0)
917	{	1650	{
918	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1651	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
930	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1663	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
931	next_pri = nice;	1664	next_pri = nice;
932		1665
933	void	1666	void
934	flush ()	1667	flush ()
935	PROTOTYPE:
936	CODE:	1668	CODE:
937	while (eio_nreqs ())	1669	while (eio_nreqs ())
938	{	1670	{
939	poll_wait ();	1671	poll_wait ();
940	poll_cb ();	1672	poll_cb ();
941	}	1673	}
942		1674
943	int	1675	int
944	poll()	1676	poll ()
945	PROTOTYPE:
946	CODE:	1677	CODE:
947	poll_wait ();	1678	poll_wait ();
948	RETVAL = poll_cb ();	1679	RETVAL = poll_cb ();
949	OUTPUT:	1680	OUTPUT:
950	RETVAL	1681	RETVAL
951		1682
952	int	1683	int
953	poll_fileno()	1684	poll_fileno ()
954	PROTOTYPE:
955	CODE:	1685	CODE:
956	RETVAL = respipe [0];	1686	RETVAL = s_epipe_fd (&respipe);
957	OUTPUT:	1687	OUTPUT:
958	RETVAL	1688	RETVAL
959		1689
960	int	1690	int
961	poll_cb(...)	1691	poll_cb (...)
962	PROTOTYPE:	1692	PROTOTYPE:
963	CODE:	1693	CODE:
964	RETVAL = poll_cb ();	1694	RETVAL = poll_cb ();
965	OUTPUT:	1695	OUTPUT:
966	RETVAL	1696	RETVAL
967		1697
968	void	1698	void
969	poll_wait()	1699	poll_wait ()
970	PROTOTYPE:
971	CODE:	1700	CODE:
972	poll_wait ();	1701	poll_wait ();
973		1702
974	int	1703	int
975	nreqs()	1704	nreqs ()
976	PROTOTYPE:
977	CODE:	1705	CODE:
978	RETVAL = eio_nreqs ();	1706	RETVAL = eio_nreqs ();
979	OUTPUT:	1707	OUTPUT:
980	RETVAL	1708	RETVAL
981		1709
982	int	1710	int
983	nready()	1711	nready ()
984	PROTOTYPE:
985	CODE:	1712	CODE:
986	RETVAL = eio_nready ();	1713	RETVAL = eio_nready ();
987	OUTPUT:	1714	OUTPUT:
988	RETVAL	1715	RETVAL
989		1716
990	int	1717	int
991	npending()	1718	npending ()
992	PROTOTYPE:
993	CODE:	1719	CODE:
994	RETVAL = eio_npending ();	1720	RETVAL = eio_npending ();
995	OUTPUT:	1721	OUTPUT:
996	RETVAL	1722	RETVAL
997		1723
998	int	1724	int
999	nthreads()	1725	nthreads ()
1000	PROTOTYPE:
1001	CODE:	1726	CODE:
1002	RETVAL = eio_nthreads ();	1727	RETVAL = eio_nthreads ();
1003	OUTPUT:	1728	OUTPUT:
1004	RETVAL	1729	RETVAL
1005		1730
		1731	int
		1732	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1733	CODE:
		1734	RETVAL = posix_fadvise (fh, offset, length, advice);
		1735	OUTPUT:
		1736	RETVAL
		1737
		1738	IV
		1739	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1740	CODE:
		1741	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1742	OUTPUT:
		1743	RETVAL
		1744
		1745	void
		1746	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1747	PPCODE:
		1748	sv_unmagic (scalar, MMAP_MAGIC);
		1749	{
		1750	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1751	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1752	if (addr == (void *)-1)
		1753	XSRETURN_NO;
		1754
		1755	sv_force_normal (scalar);
		1756
		1757	/* we store the length in mg_obj, as namlen is I32 :/ */
		1758	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1759	->mg_obj = (SV *)length;
		1760
		1761	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1762
		1763	if (!(prot & PROT_WRITE))
		1764	SvREADONLY_on (scalar);
		1765
		1766	if (SvLEN (scalar))
		1767	Safefree (SvPVX (scalar));
		1768
		1769	SvPVX (scalar) = (char *)addr;
		1770	SvCUR_set (scalar, length);
		1771	SvLEN_set (scalar, 0);
		1772	SvPOK_only (scalar);
		1773
		1774	XSRETURN_YES;
		1775	}
		1776
		1777	void
		1778	munmap (SV *scalar)
		1779	CODE:
		1780	sv_unmagic (scalar, MMAP_MAGIC);
		1781
		1782	int
		1783	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1784	ALIAS:
		1785	mprotect = 1
		1786	CODE:
		1787	{
		1788	STRLEN svlen;
		1789	void *addr = SvPVbyte (scalar, svlen);
		1790	size_t len = SvUV (length);
		1791
		1792	if (offset < 0)
		1793	offset += svlen;
		1794
		1795	if (offset < 0 || offset > svlen)
		1796	croak ("offset outside of scalar");
		1797
		1798	if (!SvOK (length) || len + offset > svlen)
		1799	len = svlen - offset;
		1800
		1801	addr = (void *)(((intptr_t)addr) + offset);
		1802	eio_page_align (&addr, &len);
		1803
		1804	switch (ix)
		1805	{
		1806	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1807	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1808	}
		1809	}
		1810	OUTPUT:
		1811	RETVAL
		1812
		1813	int
		1814	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1815	CODE:
		1816	{
		1817	STRLEN svlen;
		1818	void *addr = SvPVbyte (scalar, svlen);
		1819	size_t len = SvUV (length);
		1820
		1821	if (offset < 0)
		1822	offset += svlen;
		1823
		1824	if (offset < 0 || offset > svlen)
		1825	croak ("offset outside of scalar");
		1826
		1827	if (!SvOK (length) || len + offset > svlen)
		1828	len = svlen - offset;
		1829
		1830	addr = (void *)(((intptr_t)addr) + offset);
		1831	eio_page_align (&addr, &len);
		1832	#if _POSIX_MEMLOCK_RANGE
		1833	RETVAL = munlock (addr, len);
		1834	#else
		1835	RETVAL = EIO_ENOSYS ();
		1836	#endif
		1837	}
		1838	OUTPUT:
		1839	RETVAL
		1840
		1841	int
		1842	munlockall ()
		1843	CODE:
		1844	#if _POSIX_MEMLOCK
		1845	munlockall ();
		1846	#else
		1847	RETVAL = EIO_ENOSYS ();
		1848	#endif
		1849	OUTPUT:
		1850	RETVAL
		1851
		1852	int
		1853	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1854	CODE:
		1855	{
		1856	#if HAVE_LINUX_SPLICE
		1857	loff_t off_in_, off_out_;
		1858	RETVAL = splice (
		1859	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1860	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1861	length, flags
		1862	);
		1863	#else
		1864	RETVAL = EIO_ENOSYS ();
		1865	#endif
		1866	}
		1867	OUTPUT:
		1868	RETVAL
		1869
		1870	int
		1871	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1872	CODE:
		1873	#if HAVE_LINUX_SPLICE
		1874	RETVAL = tee (rfh, wfh, length, flags);
		1875	#else
		1876	RETVAL = EIO_ENOSYS ();
		1877	#endif
		1878	OUTPUT:
		1879	RETVAL
		1880
		1881	int
		1882	pipesize (aio_rfd rfh, int new_size = -1)
		1883	PROTOTYPE: $;$
		1884	CODE:
		1885	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		1886	if (new_size >= 0)
		1887	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		1888	else
		1889	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		1890	#else
		1891	errno = ENOSYS;
		1892	RETVAL = -1;
		1893	#endif
		1894	OUTPUT:
		1895	RETVAL
		1896
1006	void _on_next_submit (SV *cb)	1897	void _on_next_submit (SV *cb)
1007	CODE:	1898	CODE:
1008	SvREFCNT_dec (on_next_submit);	1899	SvREFCNT_dec (on_next_submit);
1009	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1900	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1010		1901
1011	PROTOTYPES: DISABLE	1902	PROTOTYPES: DISABLE
1012		1903
		1904	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1905
		1906	BOOT:
		1907	{
		1908	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1909	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1910	}
		1911
		1912	void
		1913	DESTROY (SV *self)
		1914	CODE:
		1915	{
		1916	aio_wd wd = SvAIO_WD (self);
		1917	#if HAVE_AT
		1918	{
		1919	SV *callback = &PL_sv_undef;
		1920	dREQ; /* clobbers next_pri :/ */
		1921	next_pri = req->pri; /* restore next_pri */
		1922	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1923	req->type = EIO_WD_CLOSE;
		1924	req->wd = wd;
		1925	REQ_SEND;
		1926	}
		1927	#else
		1928	eio_wd_close_sync (wd);
		1929	#endif
		1930	}
		1931
1013	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1932	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1014		1933
1015	void	1934	void
1016	cancel (aio_req_ornot req)	1935	cancel (aio_req_ornot req)
1017	CODE:	1936	CODE:
1018	eio_cancel (req);	1937	eio_cancel (req);
1019		1938
1020	void	1939	void
1021	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1940	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1022	CODE:	1941	PPCODE:
		1942	{
		1943	if (GIMME_V != G_VOID)
		1944	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1945
		1946	if (items > 1)
		1947	{
		1948	SV *cb_cv =get_cb (callback);
		1949
1023	SvREFCNT_dec (req->callback);	1950	SvREFCNT_dec (req->callback);
1024	req->callback = newSVsv (callback);	1951	req->callback = SvREFCNT_inc (cb_cv);
		1952	}
		1953	}
1025		1954
1026	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1955	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1027		1956
1028	void	1957	void
1029	add (aio_req grp, ...)	1958	add (aio_req grp, ...)
…		…
1061	AV *av;	1990	AV *av;
1062		1991
1063	grp->errorno = errno;	1992	grp->errorno = errno;
1064		1993
1065	av = newAV ();	1994	av = newAV ();
		1995	av_extend (av, items - 1);
1066		1996
1067	for (i = 1; i < items; ++i )	1997	for (i = 1; i < items; ++i )
1068	av_push (av, newSVsv (ST (i)));	1998	av_push (av, newSVsv (ST (i)));
1069		1999
1070	SvREFCNT_dec (grp->sv1);	2000	SvREFCNT_dec (grp->sv1);
…		…
1084	void	2014	void
1085	feed (aio_req grp, SV *callback=&PL_sv_undef)	2015	feed (aio_req grp, SV *callback=&PL_sv_undef)
1086	CODE:	2016	CODE:
1087	{	2017	{
1088	SvREFCNT_dec (grp->sv2);	2018	SvREFCNT_dec (grp->sv2);
1089	grp->sv2 = newSVsv (callback);	2019	grp->sv2 = newSVsv (callback);
		2020	grp->feed = aio_grp_feed;
1090		2021
1091	if (grp->int2 <= 0)	2022	if (grp->int2 <= 0)
1092	grp->int2 = 2;	2023	grp->int2 = 2;
1093		2024
1094	eio_grp_limit (grp, grp->int2);	2025	eio_grp_limit (grp, grp->int2);

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