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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.115 by root, Sat May 10 18:06:41 2008 UTC vs.
Revision 1.232 by root, Sat Jun 13 00:06:13 2015 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
		37	/* perl namespace pollution */
		38	#undef VERSION
		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
18	#ifdef _WIN32	46	#ifdef _WIN32
19		47
20	# define EIO_STRUCT_DIRENT Direntry_t
21	# undef malloc
22	# undef free
23
24	// perl overrides all those nice win32 functions	48	// perl overrides all those nice libc functions
		49
		50	#undef malloc
		51	#undef free
25	# undef open	52	#undef open
26	# undef read	53	#undef read
27	# undef write	54	#undef write
28	# undef send	55	#undef send
29	# undef recv	56	#undef recv
30	# undef stat	57	#undef stat
		58	#undef lstat
31	# undef fstat	59	#undef fstat
32	# define lstat stat
33	# undef truncate	60	#undef truncate
34	# undef ftruncate	61	#undef ftruncate
35	# undef open	62	#undef open
		63	#undef link
36	# undef close	64	#undef close
37	# undef unlink	65	#undef unlink
		66	#undef mkdir
38	# undef rmdir	67	#undef rmdir
39	# undef rename	68	#undef rename
40	# 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
41		79
42	# define chown(a,b,c) (errno = ENOSYS, -1)	80	#define EIO_STRUCT_STAT struct _stati64
43	# define fchown(a,b,c) (errno = ENOSYS, -1)	81	#define EIO_STRUCT_STATI64
44	# define fchmod(a,b) (errno = ENOSYS, -1)
45	# define symlink(a,b) (errno = ENOSYS, -1)
46	# define readlink(a,b,c) (errno = ENOSYS, -1)
47	# define mknod(a,b,c) (errno = ENOSYS, -1)
48	# define truncate(a,b) (errno = ENOSYS, -1)
49	# define ftruncate(fd,o) chsize ((fd), (o))
50	# define fsync(fd) _commit (fd)
51	# define opendir(fd) (errno = ENOSYS, 0)
52	# define readdir(fd) (errno = ENOSYS, -1)
53	# define closedir(fd) (errno = ENOSYS, -1)
54	# define mkdir(a,b) mkdir (a)
55		82
56	#else	83	#else
57		84
58	# include <sys/time.h>	85	#include <sys/time.h>
59	# include <sys/select.h>	86	#include <sys/select.h>
60	# include <unistd.h>	87	#include <unistd.h>
61	# include <utime.h>	88	#include <utime.h>
62	# include <signal.h>	89	#include <signal.h>
63	# define EIO_STRUCT_DIRENT struct dirent
64		90
65	#endif
66
67	#define EIO_STRUCT_STAT Stat_t	91	#define EIO_STRUCT_STAT Stat_t
68		92
69	/* use NV for 32 bit perls as it allows larger offsets */	93	#endif
70	#if IVSIZE >= 8	94
71	# define SvVAL64 SvIV	95	/*****************************************************************************/
		96
		97	#if __GNUC__ >= 3
		98	# define expect(expr,value) __builtin_expect ((expr),(value))
72	#else	99	#else
73	# define SvVAL64 SvNV	100	# define expect(expr,value) (expr)
74	#endif	101	#endif
75		102
76	static HV *stash;	103	#define expect_false(expr) expect ((expr) != 0, 0)
		104	#define expect_true(expr) expect ((expr) != 0, 1)
		105
		106	/*****************************************************************************/
		107
77	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 */
78		111
79	#define AIO_REQ_KLASS "IO::AIO::REQ"	112	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
80	#define AIO_GRP_KLASS "IO::AIO::GRP"
81		113
82	#define EIO_COMMON \	114	#define EIO_REQ_MEMBERS \
83	SV *callback; \	115	SV *callback; \
84	SV *sv1, *sv2; \	116	SV *sv1, *sv2; \
		117	SV *sv3, *sv4; \
85	STRLEN stroffset; \	118	STRLEN stroffset; \
86	SV *self	119	SV *self;
87		120
		121	#define EIO_NO_WRAPPERS 1
		122
		123	#include "libeio/config.h"
88	#include "libeio/eio.h"	124	#include "libeio/eio.h"
89		125
90	static int req_invoke (eio_req *req);	126	static int req_invoke (eio_req *req);
91	#define EIO_FINISH(req) req_invoke (req)	127	#define EIO_FINISH(req) req_invoke (req)
92	static void aio_grp_feed (eio_req *grp);
93	#define EIO_FEED(req) aio_grp_feed (req)
94	static void req_destroy (eio_req *grp);	128	static void req_destroy (eio_req *grp);
95	#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	/*****************************************************************************/
96		265
97	enum {	266	enum {
98	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	267	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
99	};	268	};
100		269
101	#include "libeio/eio.c"
102
103	typedef eio_req *aio_req;	270	typedef eio_req *aio_req;
104	typedef eio_req *aio_req_ornot;	271	typedef eio_req *aio_req_ornot;
		272	typedef eio_wd aio_wd;
105		273
106	static unsigned int max_outstanding = 0x7fffffff;	274	static SV *on_next_submit;
		275	static int next_pri = EIO_PRI_DEFAULT;
		276	static int max_outstanding;
107		277
108	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	278	static s_epipe respipe;
109
110	static int respipe_osf [2], respipe [2] = { -1, -1 };
111		279
112	static void req_destroy (aio_req req);	280	static void req_destroy (aio_req req);
113	static void req_cancel (aio_req req);	281	static void req_cancel (aio_req req);
114		282
115	static void want_poll (void)	283	static void
		284	want_poll (void)
116	{	285	{
117	/* write a dummy byte to the pipe so fh becomes ready */	286	/* write a dummy byte to the pipe so fh becomes ready */
118	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	287	s_epipe_signal (&respipe);
119	}	288	}
120		289
121	static void done_poll (void)	290	static void
		291	done_poll (void)
122	{	292	{
123	/* read any signals sent by the worker threads */	293	/* read any signals sent by the worker threads */
124	char buf [4];	294	s_epipe_drain (&respipe);
125	while (respipe_read (respipe [0], buf, 4) == 4)
126	;
127	}	295	}
128		296
129	/* must be called at most once */	297	/* must be called at most once */
130	static SV *req_sv (aio_req req, const char *klass)	298	static SV *
		299	req_sv (aio_req req, HV *stash)
131	{	300	{
132	if (!req->self)	301	if (!req->self)
133	{	302	{
134	req->self = (SV *)newHV ();	303	req->self = (SV *)newHV ();
135	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	304	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
136	}	305	}
137		306
138	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	307	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
139	}	308	}
140		309
141	static aio_req SvAIO_REQ (SV *sv)	310	static SV *
		311	newSVaio_wd (aio_wd wd)
		312	{
		313	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		314	}
		315
		316	static aio_req
		317	SvAIO_REQ (SV *sv)
142	{	318	{
143	MAGIC *mg;	319	MAGIC *mg;
144		320
145	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")))
146	croak ("object of class " AIO_REQ_KLASS " expected");	326	croak ("object of class IO::AIO::REQ expected");
147		327
148	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	328	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
149		329
150	return mg ? (aio_req)mg->mg_ptr : 0;	330	return mg ? (aio_req)mg->mg_ptr : 0;
151	}	331	}
152		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
153	static void aio_grp_feed (aio_req grp)	345	aio_grp_feed (aio_req grp)
154	{	346	{
155	if (grp->sv2 && SvOK (grp->sv2))	347	if (grp->sv2 && SvOK (grp->sv2))
156	{	348	{
157	dSP;	349	dSP;
158		350
159	ENTER;	351	ENTER;
160	SAVETMPS;	352	SAVETMPS;
161	PUSHMARK (SP);	353	PUSHMARK (SP);
162	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	354	XPUSHs (req_sv (grp, aio_grp_stash));
163	PUTBACK;	355	PUTBACK;
164	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	356	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
165	SPAGAIN;	357	SPAGAIN;
166	FREETMPS;	358	FREETMPS;
167	LEAVE;	359	LEAVE;
168	}	360	}
169	}	361	}
170		362
		363	static void
		364	req_submit (eio_req *req)
		365	{
		366	eio_submit (req);
		367
		368	if (expect_false (on_next_submit))
		369	{
		370	dSP;
		371	SV *cb = sv_2mortal (on_next_submit);
		372
		373	on_next_submit = 0;
		374
		375	PUSHMARK (SP);
		376	PUTBACK;
		377	call_sv (cb, G_DISCARD | G_EVAL);
		378	}
		379	}
		380
		381	static int
171	static int req_invoke (eio_req *req)	382	req_invoke (eio_req *req)
172	{	383	{
173	dSP;
174
175	if (req->flags & FLAG_SV2_RO_OFF)	384	if (req->flags & FLAG_SV2_RO_OFF)
176	SvREADONLY_off (req->sv2);	385	SvREADONLY_off (req->sv2);
177		386
178	if (!EIO_CANCELLED (req) && SvOK (req->callback))	387	if (!EIO_CANCELLED (req) && req->callback)
179	{	388	{
		389	dSP;
		390	static SV *sv_result_cache; /* caches the result integer SV */
		391	SV *sv_result;
		392
180	ENTER;	393	ENTER;
181	SAVETMPS;	394	SAVETMPS;
182	PUSHMARK (SP);	395	PUSHMARK (SP);
183	EXTEND (SP, 1);	396	EXTEND (SP, 1);
184		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
185	switch (req->type)	411	switch (req->type)
186	{	412	{
		413	case EIO_WD_OPEN:
		414	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		415	break;
		416
187	case EIO_READDIR:	417	case EIO_READDIR:
188	{	418	{
189	SV *rv = &PL_sv_undef;	419	SV *rv = &PL_sv_undef;
190		420
191	if (req->result >= 0)	421	if (req->result >= 0)
192	{	422	{
193	int i;	423	int i;
194	char *buf = req->ptr2;	424	char *names = (char *)req->ptr2;
		425	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
195	AV *av = newAV ();	426	AV *av = newAV ();
196		427
197	av_extend (av, req->result - 1);	428	av_extend (av, req->result - 1);
198		429
199	for (i = 0; i < req->result; ++i)	430	for (i = 0; i < req->result; ++i)
200	{	431	{
201	SV *sv = newSVpv (buf, 0);	432	if (req->int1 & EIO_READDIR_DENTS)
		433	{
		434	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
202		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
203	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);
204	buf += SvCUR (sv) + 1;	464	names += SvCUR (name) + 1;
		465	}
205	}	466	}
206		467
207	rv = sv_2mortal (newRV_noinc ((SV *)av));	468	rv = sv_2mortal (newRV_noinc ((SV *)av));
208	}	469	}
209		470
210	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))));
211	}	475	}
212	break;	476	break;
213		477
214	case EIO_OPEN:	478	case EIO_OPEN:
215	{	479	{
…		…
221	GV *gv = (GV *)sv_newmortal ();	485	GV *gv = (GV *)sv_newmortal ();
222	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	486	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
223	char sym [64];	487	char sym [64];
224	int symlen;	488	int symlen;
225		489
226	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	490	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
227	gv_init (gv, stash, sym, symlen, 0);	491	gv_init (gv, aio_stash, sym, symlen, 0);
228		492
229	symlen = snprintf (	493	symlen = snprintf (
230	sym,	494	sym,
231	sizeof (sym),	495	sizeof (sym),
232	"%s&=%d",	496	"%s&=%d",
233	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	497	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
234	req->result	498	(int)req->result
235	);	499	);
236		500
237	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	501	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
238	fh = (SV *)gv;	502	fh = (SV *)gv;
239	}	503	}
240		504
241	PUSHs (fh);	505	PUSHs (fh);
242	}	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
243	break;	544	break;
244		545
245	case EIO_GROUP:	546	case EIO_GROUP:
246	req->int1 = 2; /* mark group as finished */	547	req->int1 = 2; /* mark group as finished */
247		548
…		…
259	case EIO_NOP:	560	case EIO_NOP:
260	case EIO_BUSY:	561	case EIO_BUSY:
261	break;	562	break;
262		563
263	case EIO_READLINK:	564	case EIO_READLINK:
		565	case EIO_REALPATH:
264	if (req->result > 0)	566	if (req->result > 0)
265	{	567	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
266	SvCUR_set (req->sv2, req->result);
267	*SvEND (req->sv2) = 0;
268	PUSHs (req->sv2);
269	}
270	break;	568	break;
271		569
272	case EIO_STAT:	570	case EIO_STAT:
273	case EIO_LSTAT:	571	case EIO_LSTAT:
274	case EIO_FSTAT:	572	case EIO_FSTAT:
275	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	573	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		574
276	PL_laststatval = req->result;	575	if (!(PL_laststatval = req->result))
		576	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
277	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	577	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
278	PUSHs (sv_2mortal (newSViv (req->result)));	578
		579	PUSHs (sv_result);
279	break;	580	break;
280		581
		582	case EIO_SEEK:
		583	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		584	break;
		585
281	case EIO_READ:	586	case EIO_READ:
		587	{
282	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));
283	*SvEND (req->sv2) = 0;	589	*SvEND (req->sv2) = 0;
284	PUSHs (sv_2mortal (newSViv (req->result)));	590	SvPOK_only (req->sv2);
		591	SvSETMAGIC (req->sv2);
		592	PUSHs (sv_result);
		593	}
285	break;	594	break;
286		595
287	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 */
288	if (req->result > 0)	637	if (req->result > 0)
289	req->result = 0;	638	SvIV_set (sv_result, 0);
290	/* FALLTHROUGH */	639	/* FALLTHROUGH */
291		640
292	default:	641	default:
293	PUSHs (sv_2mortal (newSViv (req->result)));	642	PUSHs (sv_result);
294	break;	643	break;
295	}	644	}
296		645
297	errno = req->errorno;	646	errno = req->errorno;
298		647
299	PUTBACK;	648	PUTBACK;
300	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	649	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
301	SPAGAIN;	650	SPAGAIN;
302		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
303	FREETMPS;	657	FREETMPS;
304	LEAVE;	658	LEAVE;
305		659
306	PUTBACK;	660	PUTBACK;
307	}	661	}
308		662
309	return !!SvTRUE (ERRSV);	663	return !!SvTRUE (ERRSV);
310	}	664	}
311		665
		666	static void
312	static void req_destroy (aio_req req)	667	req_destroy (aio_req req)
313	{	668	{
314	if (req->self)	669	if (req->self)
315	{	670	{
316	sv_unmagic (req->self, PERL_MAGIC_ext);	671	sv_unmagic (req->self, PERL_MAGIC_ext);
317	SvREFCNT_dec (req->self);	672	SvREFCNT_dec (req->self);
318	}	673	}
319		674
320	SvREFCNT_dec (req->sv1);	675	SvREFCNT_dec (req->sv1);
321	SvREFCNT_dec (req->sv2);	676	SvREFCNT_dec (req->sv2);
		677	SvREFCNT_dec (req->sv3);
		678	SvREFCNT_dec (req->sv4);
322	SvREFCNT_dec (req->callback);	679	SvREFCNT_dec (req->callback);
323		680
324	Safefree (req);	681	free (req);
325	}	682	}
326		683
		684	static void
327	static void req_cancel_subs (aio_req grp)	685	req_cancel_subs (aio_req grp)
328	{	686	{
329	aio_req sub;
330
331	if (grp->type != EIO_GROUP)	687	if (grp->type != EIO_GROUP)
332	return;	688	return;
333		689
334	SvREFCNT_dec (grp->sv2);	690	SvREFCNT_dec (grp->sv2);
335	grp->sv2 = 0;	691	grp->sv2 = 0;
336		692
337	eio_grp_cancel (grp);	693	eio_grp_cancel (grp);
338	}	694	}
339		695
340	#ifdef USE_SOCKETS_AS_HANDLES	696	static void ecb_cold
341	# define TO_SOCKET(x) (win32_get_osfhandle (x))	697	create_respipe (void)
342	#else	698	{
343	# define TO_SOCKET(x) (x)	699	if (s_epipe_renew (&respipe))
344	#endif	700	croak ("IO::AIO: unable to initialize result pipe");
		701	}
345		702
346	static void	703	static void
347	create_respipe (void)	704	poll_wait (void)
348	{	705	{
349	int old_readfd = respipe [0];
350
351	if (respipe [1] >= 0)
352	respipe_close (TO_SOCKET (respipe [1]));
353
354	#ifdef _WIN32
355	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
356	#else
357	if (pipe (respipe))
358	#endif
359	croak ("unable to initialize result pipe");
360
361	if (old_readfd >= 0)
362	{
363	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
364	croak ("unable to initialize result pipe(2)");
365
366	respipe_close (respipe [0]);
367	respipe [0] = old_readfd;
368	}
369
370	#ifdef _WIN32
371	int arg = 1;
372	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
373	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
374	#else
375	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
376	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
377	#endif
378	croak ("unable to initialize result pipe(3)");
379
380	respipe_osf [0] = TO_SOCKET (respipe [0]);
381	respipe_osf [1] = TO_SOCKET (respipe [1]);
382	}
383
384	static void poll_wait (void)
385	{
386	fd_set rfd;
387
388	while (eio_nreqs ())	706	while (eio_nreqs ())
389	{	707	{
390	int size;	708	int size;
391		709
392	X_LOCK (reslock);	710	X_LOCK (reslock);
…		…
394	X_UNLOCK (reslock);	712	X_UNLOCK (reslock);
395		713
396	if (size)	714	if (size)
397	return;	715	return;
398		716
399	maybe_start_thread ();	717	etp_maybe_start_thread ();
400		718
401	FD_ZERO (&rfd);	719	s_epipe_wait (&respipe);
402	FD_SET (respipe [0], &rfd);
403
404	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
405	}	720	}
406	}	721	}
407		722
408	static int poll_cb (void)	723	static int
		724	poll_cb (void)
409	{	725	{
		726	for (;;)
		727	{
410	int res = eio_poll ();	728	int res = eio_poll ();
411		729
412	if (res > 0)	730	if (res > 0)
413	croak (0);	731	croak (0);
414		732
		733	if (!max_outstanding || max_outstanding > eio_nreqs ())
		734	return res;
		735
		736	poll_wait ();
		737	}
		738	}
		739
		740	static void ecb_cold
		741	reinit (void)
		742	{
		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
415	return res;	818	return req;
416	}	819	}
417		820
418	#define dREQ \	821	#define dREQ \
419	aio_req req; \	822	aio_req req = dreq (callback); \
420	int req_pri = next_pri; \
421	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \
422	\
423	if (SvOK (callback) && !SvROK (callback)) \
424	croak ("callback must be undef or of reference type"); \
425	\
426	Newz (0, req, 1, eio_req); \
427	if (!req) \
428	croak ("out of memory during eio_req allocation"); \
429	\
430	req->callback = newSVsv (callback); \
431	req->pri = req_pri
432		823
433	#define REQ_SEND \	824	#define REQ_SEND \
		825	PUTBACK; \
434	eio_submit (req); \	826	req_submit (req); \
		827	SPAGAIN; \
435	\	828	\
436	if (GIMME_V != G_VOID) \	829	if (GIMME_V != G_VOID) \
437	XPUSHs (req_sv (req, AIO_REQ_KLASS));	830	XPUSHs (req_sv (req, aio_req_stash));
438		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
439	MODULE = IO::AIO PACKAGE = IO::AIO	898	MODULE = IO::AIO PACKAGE = IO::AIO
440		899
441	PROTOTYPES: ENABLE	900	PROTOTYPES: ENABLE
442		901
443	BOOT:	902	BOOT:
444	{	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	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1039	const_eio (FALLOC_FL_ZERO_RANGE)
		1040
		1041	const_eio (READDIR_DENTS)
		1042	const_eio (READDIR_DIRS_FIRST)
		1043	const_eio (READDIR_STAT_ORDER)
		1044	const_eio (READDIR_FOUND_UNKNOWN)
		1045
		1046	const_eio (DT_UNKNOWN)
		1047	const_eio (DT_FIFO)
		1048	const_eio (DT_CHR)
		1049	const_eio (DT_DIR)
		1050	const_eio (DT_BLK)
		1051	const_eio (DT_REG)
		1052	const_eio (DT_LNK)
		1053	const_eio (DT_SOCK)
		1054	const_eio (DT_WHT)
		1055	};
		1056
445	stash = gv_stashpv ("IO::AIO", 1);	1057	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1058	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1059	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1060	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
446		1061
447	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1062	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
448	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1063	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
449	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
450	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
451	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
452	#ifdef _WIN32
453	X_MUTEX_CHECK (wrklock);
454	X_MUTEX_CHECK (reslock);
455	X_MUTEX_CHECK (reqlock);
456	X_MUTEX_CHECK (reqwait);
457	X_MUTEX_CHECK (preadwritelock);
458	X_MUTEX_CHECK (readdirlock);
459		1064
460	X_COND_CHECK (reqwait);	1065	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
461	#else
462	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
463	#endif
464		1066
465	create_respipe ();	1067	reinit ();
466
467	if (eio_init (want_poll, done_poll) < 0)
468	croak ("IO::AIO: unable to initialise eio library");
469	}	1068	}
470		1069
471	void	1070	void
		1071	reinit ()
		1072	PROTOTYPE:
		1073
		1074	void
472	max_poll_reqs (int nreqs)	1075	max_poll_reqs (unsigned int nreqs)
473	PROTOTYPE: $	1076	PROTOTYPE: $
474	CODE:	1077	CODE:
475	eio_set_max_poll_reqs (nreqs);	1078	eio_set_max_poll_reqs (nreqs);
476		1079
477	void	1080	void
…		…
479	PROTOTYPE: $	1082	PROTOTYPE: $
480	CODE:	1083	CODE:
481	eio_set_max_poll_time (nseconds);	1084	eio_set_max_poll_time (nseconds);
482		1085
483	void	1086	void
484	min_parallel (int nthreads)	1087	min_parallel (unsigned int nthreads)
485	PROTOTYPE: $	1088	PROTOTYPE: $
486	CODE:	1089	CODE:
487	eio_set_min_parallel (nthreads);	1090	eio_set_min_parallel (nthreads);
488		1091
489	void	1092	void
490	max_parallel (int nthreads)	1093	max_parallel (unsigned int nthreads)
491	PROTOTYPE: $	1094	PROTOTYPE: $
492	CODE:	1095	CODE:
493	eio_set_max_parallel (nthreads);	1096	eio_set_max_parallel (nthreads);
494		1097
495	void	1098	void
496	max_idle (int nthreads)	1099	max_idle (unsigned int nthreads)
497	PROTOTYPE: $	1100	PROTOTYPE: $
498	CODE:	1101	CODE:
499	eio_set_max_idle (nthreads);	1102	eio_set_max_idle (nthreads);
500		1103
501	void	1104	void
		1105	idle_timeout (unsigned int seconds)
		1106	PROTOTYPE: $
		1107	CODE:
		1108	eio_set_idle_timeout (seconds);
		1109
		1110	void
502	max_outstanding (int maxreqs)	1111	max_outstanding (unsigned int maxreqs)
503	PROTOTYPE: $	1112	PROTOTYPE: $
504	CODE:	1113	CODE:
505	max_outstanding = maxreqs;	1114	max_outstanding = maxreqs;
506		1115
507	void	1116	void
508	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1117	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
509	PROTOTYPE: $$$;$
510	PPCODE:	1118	PPCODE:
511	{	1119	{
512	dREQ;	1120	dREQ;
513		1121
		1122	req->type = EIO_WD_OPEN;
		1123	req_set_path1 (req, pathname);
		1124
		1125	REQ_SEND;
		1126	}
		1127
		1128	void
		1129	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1130	PPCODE:
		1131	{
		1132	dREQ;
		1133
514	req->type = EIO_OPEN;	1134	req->type = EIO_OPEN;
515	req->sv1 = newSVsv (pathname);	1135	req_set_path1 (req, pathname);
516	req->ptr1 = SvPVbyte_nolen (req->sv1);
517	req->int1 = flags;	1136	req->int1 = flags;
518	req->int2 = mode;	1137	req->int2 = mode;
519		1138
520	REQ_SEND;	1139	REQ_SEND;
521	}	1140	}
522		1141
523	void	1142	void
524	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1143	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
525	PROTOTYPE: $;$
526	ALIAS:	1144	ALIAS:
527	aio_fsync = EIO_FSYNC	1145	aio_fsync = EIO_FSYNC
528	aio_fdatasync = EIO_FDATASYNC	1146	aio_fdatasync = EIO_FDATASYNC
		1147	aio_syncfs = EIO_SYNCFS
529	PPCODE:	1148	PPCODE:
530	{	1149	{
		1150	int fd = s_fileno_croak (fh, 0);
531	dREQ;	1151	dREQ;
532		1152
533	req->type = ix;	1153	req->type = ix;
534	req->sv1 = newSVsv (fh);	1154	req->sv1 = newSVsv (fh);
535	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1155	req->int1 = fd;
536		1156
537	REQ_SEND (req);	1157	REQ_SEND;
538	}	1158	}
539		1159
540	void	1160	void
541	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1161	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
542	PROTOTYPE: $;$
543	PPCODE:	1162	PPCODE:
544	{	1163	{
545	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1164	int fd = s_fileno_croak (fh, 0);
546	dREQ;	1165	dREQ;
547		1166
548	if (close_pipe < 0)	1167	req->type = EIO_SYNC_FILE_RANGE;
		1168	req->sv1 = newSVsv (fh);
		1169	req->int1 = fd;
		1170	req->offs = offset;
		1171	req->size = nbytes;
		1172	req->int2 = flags;
		1173
		1174	REQ_SEND;
		1175	}
		1176
		1177	void
		1178	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
		1179	PPCODE:
		1180	{
		1181	int fd = s_fileno_croak (fh, 0);
		1182	dREQ;
		1183
		1184	req->type = EIO_FALLOCATE;
		1185	req->sv1 = newSVsv (fh);
		1186	req->int1 = fd;
		1187	req->int2 = mode;
		1188	req->offs = offset;
		1189	req->size = len;
		1190
		1191	REQ_SEND;
		1192	}
		1193
		1194	void
		1195	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1196	PPCODE:
		1197	{
		1198	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1199	int fd = s_fileno_croak (fh, 0);
		1200	dREQ;
		1201
		1202	if (expect_false (close_fd < 0))
549	{	1203	{
550	int pipefd [2];	1204	int pipefd [2];
551		1205
		1206	if (
		1207	#ifdef _WIN32
		1208	_pipe (pipefd, 1, _O_BINARY) < 0
		1209	#else
552	if (pipe (pipefd) < 0	1210	pipe (pipefd) < 0
553	|| close (pipefd [1]) < 0
554	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1211	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1212	#endif
		1213	|| close (pipefd [1]) < 0
		1214	)
555	abort (); /*D*/	1215	abort (); /*D*/
556		1216
557	close_pipe = pipefd [0];	1217	close_fd = pipefd [0];
558	}	1218	}
559		1219
560	req->type = EIO_DUP2;	1220	req->type = EIO_DUP2;
561	req->int1 = close_pipe;	1221	req->int1 = close_fd;
562	req->sv2 = newSVsv (fh);	1222	req->sv2 = newSVsv (fh);
563	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1223	req->int2 = fd;
564		1224
565	REQ_SEND (req);	1225	REQ_SEND;
566	}	1226	}
567		1227
568	void	1228	void
		1229	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1230	PPCODE:
		1231	{
		1232	int fd = s_fileno_croak (fh, 0);
		1233	dREQ;
		1234
		1235	req->type = EIO_SEEK;
		1236	req->sv1 = newSVsv (fh);
		1237	req->int1 = fd;
		1238	req->offs = SvVAL64 (offset);
		1239	req->int2 = whence;
		1240
		1241	REQ_SEND;
		1242	}
		1243
		1244	void
569	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1245	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
570	ALIAS:	1246	ALIAS:
571	aio_read = EIO_READ	1247	aio_read = EIO_READ
572	aio_write = EIO_WRITE	1248	aio_write = EIO_WRITE
573	PROTOTYPE: $$$$$;$
574	PPCODE:	1249	PPCODE:
575	{	1250	{
576	STRLEN svlen;	1251	STRLEN svlen;
		1252	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
577	char *svptr = SvPVbyte (data, svlen);	1253	char *svptr = SvPVbyte (data, svlen);
578	UV len = SvUV (length);	1254	UV len = SvUV (length);
579
580	SvUPGRADE (data, SVt_PV);
581	SvPOK_on (data);
582		1255
583	if (dataoffset < 0)	1256	if (dataoffset < 0)
584	dataoffset += svlen;	1257	dataoffset += svlen;
585		1258
586	if (dataoffset < 0 || dataoffset > svlen)	1259	if (dataoffset < 0 || dataoffset > svlen)
…		…
592	if (!SvOK (length) || len + dataoffset > svlen)	1265	if (!SvOK (length) || len + dataoffset > svlen)
593	len = svlen - dataoffset;	1266	len = svlen - dataoffset;
594	}	1267	}
595	else	1268	else
596	{	1269	{
597	/* read: grow scalar as necessary */	1270	/* read: check type and grow scalar as necessary */
		1271	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
598	svptr = SvGROW (data, len + dataoffset + 1);	1272	svptr = sv_grow (data, len + dataoffset + 1);
		1273	else if (SvCUR (data) < len + dataoffset)
		1274	croak ("length + dataoffset outside of scalar, and cannot grow");
599	}	1275	}
600
601	if (len < 0)
602	croak ("length must not be negative");
603		1276
604	{	1277	{
605	dREQ;	1278	dREQ;
606		1279
607	req->type = ix;	1280	req->type = ix;
608	req->sv1 = newSVsv (fh);	1281	req->sv1 = newSVsv (fh);
609	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1282	req->int1 = fd;
610	: IoOFP (sv_2io (fh)));
611	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1283	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
612	req->size = len;	1284	req->size = len;
613	req->sv2 = SvREFCNT_inc (data);	1285	req->sv2 = SvREFCNT_inc (data);
614	req->ptr2 = (char *)svptr + dataoffset;	1286	req->ptr2 = (char *)svptr + dataoffset;
615	req->stroffset = dataoffset;	1287	req->stroffset = dataoffset;
…		…
623	REQ_SEND;	1295	REQ_SEND;
624	}	1296	}
625	}	1297	}
626		1298
627	void	1299	void
628	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1300	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
629	PROTOTYPE: $$;$	1301	ALIAS:
		1302	aio_readlink = EIO_READLINK
		1303	aio_realpath = EIO_REALPATH
630	PPCODE:	1304	PPCODE:
631	{	1305	{
632	SV *data;
633	dREQ;	1306	dREQ;
634		1307
635	data = newSV (NAME_MAX);
636	SvPOK_on (data);
637
638	req->type = EIO_READLINK;	1308	req->type = ix;
639	req->sv1 = newSVsv (path);	1309	req_set_path1 (req, pathname);
640	req->ptr1 = SvPVbyte_nolen (req->sv1);
641	req->sv2 = data;
642	req->ptr2 = SvPVbyte_nolen (data);
643		1310
644	REQ_SEND;	1311	REQ_SEND;
645	}	1312	}
646		1313
647	void	1314	void
648	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1315	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
649	PROTOTYPE: $$$$;$
650	PPCODE:	1316	PPCODE:
651	{	1317	{
		1318	int ifd = s_fileno_croak (in_fh , 0);
		1319	int ofd = s_fileno_croak (out_fh, 1);
652	dREQ;	1320	dREQ;
653		1321
654	req->type = EIO_SENDFILE;	1322	req->type = EIO_SENDFILE;
655	req->sv1 = newSVsv (out_fh);	1323	req->sv1 = newSVsv (out_fh);
656	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1324	req->int1 = ofd;
657	req->sv2 = newSVsv (in_fh);	1325	req->sv2 = newSVsv (in_fh);
658	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1326	req->int2 = ifd;
659	req->offs = SvVAL64 (in_offset);	1327	req->offs = in_offset;
660	req->size = length;	1328	req->size = length;
661		1329
662	REQ_SEND;	1330	REQ_SEND;
663	}	1331	}
664		1332
665	void	1333	void
666	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1334	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
667	PROTOTYPE: $$$;$
668	PPCODE:	1335	PPCODE:
669	{	1336	{
		1337	int fd = s_fileno_croak (fh, 0);
670	dREQ;	1338	dREQ;
671		1339
672	req->type = EIO_READAHEAD;	1340	req->type = EIO_READAHEAD;
673	req->sv1 = newSVsv (fh);	1341	req->sv1 = newSVsv (fh);
674	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1342	req->int1 = fd;
675	req->offs = SvVAL64 (offset);	1343	req->offs = offset;
676	req->size = length;	1344	req->size = length;
677		1345
678	REQ_SEND;	1346	REQ_SEND;
679	}	1347	}
680		1348
681	void	1349	void
682	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1350	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
683	ALIAS:	1351	ALIAS:
684	aio_stat = EIO_STAT	1352	aio_stat = EIO_STAT
685	aio_lstat = EIO_LSTAT	1353	aio_lstat = EIO_LSTAT
		1354	aio_statvfs = EIO_STATVFS
686	PPCODE:	1355	PPCODE:
687	{	1356	{
688	dREQ;	1357	dREQ;
689		1358
690	req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));	1359	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
691	if (!req->ptr2)
692	{
693	req_destroy (req);
694	croak ("out of memory during aio_stat statdata allocation");
695	}
696
697	req->flags |= EIO_FLAG_PTR2_FREE;
698	req->sv1 = newSVsv (fh_or_path);
699
700	if (SvPOK (fh_or_path))
701	{
702	req->type = ix;
703	req->ptr1 = SvPVbyte_nolen (req->sv1);
704	}
705	else
706	{
707	req->type = EIO_FSTAT;
708	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
709	}
710		1360
711	REQ_SEND;	1361	REQ_SEND;
712	}	1362	}
713		1363
		1364	UV
		1365	major (UV dev)
		1366	ALIAS:
		1367	minor = 1
		1368	CODE:
		1369	RETVAL = ix ? major (dev) : minor (dev);
		1370	OUTPUT:
		1371	RETVAL
		1372
		1373	UV
		1374	makedev (UV maj, UV min)
		1375	CODE:
		1376	RETVAL = makedev (maj, min);
		1377	OUTPUT:
		1378	RETVAL
		1379
714	void	1380	void
715	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1381	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
716	PPCODE:	1382	PPCODE:
717	{	1383	{
718	dREQ;	1384	dREQ;
719		1385
720	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1386	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
721	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1387	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
722	req->sv1 = newSVsv (fh_or_path);	1388	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
723
724	if (SvPOK (fh_or_path))
725	{
726	req->type = EIO_UTIME;
727	req->ptr1 = SvPVbyte_nolen (req->sv1);
728	}
729	else
730	{
731	req->type = EIO_FUTIME;
732	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
733	}
734		1389
735	REQ_SEND;	1390	REQ_SEND;
736	}	1391	}
737		1392
738	void	1393	void
739	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1394	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
740	PPCODE:	1395	PPCODE:
741	{	1396	{
742	dREQ;	1397	dREQ;
743		1398
744	req->sv1 = newSVsv (fh_or_path);
745	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1399	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
746		1400	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
747	if (SvPOK (fh_or_path))
748	{
749	req->type = EIO_TRUNCATE;
750	req->ptr1 = SvPVbyte_nolen (req->sv1);
751	}
752	else
753	{
754	req->type = EIO_FTRUNCATE;
755	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
756	}
757		1401
758	REQ_SEND;	1402	REQ_SEND;
759	}	1403	}
760		1404
761	void	1405	void
762	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1406	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
763	ALIAS:
764	aio_chmod = EIO_CHMOD
765	aio_fchmod = EIO_FCHMOD
766	aio_mkdir = EIO_MKDIR
767	PPCODE:	1407	PPCODE:
768	{	1408	{
769	dREQ;	1409	dREQ;
770		1410
771	req->type = ix;
772	req->int2 = mode;	1411	req->int2 = mode;
773	req->sv1 = newSVsv (fh_or_path);	1412	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
774
775	if (ix == EIO_FCHMOD)
776	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
777	else
778	req->ptr1 = SvPVbyte_nolen (req->sv1);
779		1413
780	REQ_SEND;	1414	REQ_SEND;
781	}	1415	}
782		1416
783	void	1417	void
784	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1418	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
785	PPCODE:	1419	PPCODE:
786	{	1420	{
787	dREQ;	1421	dREQ;
788		1422
789	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1423	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
790	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1424	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
791	req->sv1 = newSVsv (fh_or_path);	1425	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
792
793	if (SvPOK (fh_or_path))
794	{
795	req->type = EIO_CHOWN;
796	req->ptr1 = SvPVbyte_nolen (req->sv1);
797	}
798	else
799	{
800	req->type = EIO_FCHOWN;
801	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
802	}
803		1426
804	REQ_SEND;	1427	REQ_SEND;
805	}	1428	}
806		1429
807	void	1430	void
		1431	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
		1432	PPCODE:
		1433	{
		1434	dREQ;
		1435
		1436	req->type = EIO_READDIR;
		1437	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1438
		1439	if (flags & EIO_READDIR_DENTS)
		1440	req->int1 |= EIO_READDIR_CUSTOM2;
		1441
		1442	req_set_path1 (req, pathname);
		1443
		1444	REQ_SEND;
		1445	}
		1446
		1447	void
		1448	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1449	PPCODE:
		1450	{
		1451	dREQ;
		1452
		1453	req->type = EIO_MKDIR;
		1454	req->int2 = mode;
		1455	req_set_path1 (req, pathname);
		1456
		1457	REQ_SEND;
		1458	}
		1459
		1460	void
808	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1461	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
809	ALIAS:	1462	ALIAS:
810	aio_unlink = EIO_UNLINK	1463	aio_unlink = EIO_UNLINK
811	aio_rmdir = EIO_RMDIR	1464	aio_rmdir = EIO_RMDIR
812	aio_readdir = EIO_READDIR	1465	aio_readdir = EIO_READDIR
813	PPCODE:	1466	PPCODE:
814	{	1467	{
815	dREQ;	1468	dREQ;
816		1469
817	req->type = ix;	1470	req->type = ix;
818	req->sv1 = newSVsv (pathname);	1471	req_set_path1 (req, pathname);
819	req->ptr1 = SvPVbyte_nolen (req->sv1);
820		1472
821	REQ_SEND;	1473	REQ_SEND;
822	}	1474	}
823		1475
824	void	1476	void
825	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1477	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
826	ALIAS:	1478	ALIAS:
827	aio_link = EIO_LINK	1479	aio_link = EIO_LINK
828	aio_symlink = EIO_SYMLINK	1480	aio_symlink = EIO_SYMLINK
829	aio_rename = EIO_RENAME	1481	aio_rename = EIO_RENAME
830	PPCODE:	1482	PPCODE:
831	{	1483	{
		1484	eio_wd wd2 = 0;
832	dREQ;	1485	dREQ;
833		1486
834	req->type = ix;	1487	req->type = ix;
835	req->sv1 = newSVsv (oldpath);	1488	req_set_path1 (req, oldpath);
836	req->ptr1 = SvPVbyte_nolen (req->sv1);	1489	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
837	req->sv2 = newSVsv (newpath);	1490	req->int3 = (long)wd2;
838	req->ptr2 = SvPVbyte_nolen (req->sv2);
839		1491
840	REQ_SEND;	1492	REQ_SEND;
841	}	1493	}
842		1494
843	void	1495	void
844	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1496	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
845	PPCODE:	1497	PPCODE:
846	{	1498	{
847	dREQ;	1499	dREQ;
848		1500
849	req->type = EIO_MKNOD;	1501	req->type = EIO_MKNOD;
850	req->sv1 = newSVsv (pathname);
851	req->ptr1 = SvPVbyte_nolen (req->sv1);
852	req->int2 = (mode_t)mode;	1502	req->int2 = (mode_t)mode;
853	req->offs = dev;	1503	req->offs = dev;
		1504	req_set_path1 (req, pathname);
854		1505
855	REQ_SEND;	1506	REQ_SEND;
856	}	1507	}
857		1508
858	void	1509	void
		1510	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback = &PL_sv_undef)
		1511	ALIAS:
		1512	aio_mtouch = EIO_MTOUCH
		1513	aio_msync = EIO_MSYNC
		1514	PPCODE:
		1515	{
		1516	STRLEN svlen;
		1517	char *svptr = SvPVbyte (data, svlen);
		1518	UV len = SvUV (length);
		1519
		1520	if (offset < 0)
		1521	offset += svlen;
		1522
		1523	if (offset < 0 || offset > svlen)
		1524	croak ("offset outside of scalar");
		1525
		1526	if (!SvOK (length) || len + offset > svlen)
		1527	len = svlen - offset;
		1528
		1529	{
		1530	dREQ;
		1531
		1532	req->type = ix;
		1533	req->sv2 = SvREFCNT_inc (data);
		1534	req->ptr2 = (char *)svptr + offset;
		1535	req->size = len;
		1536	req->int1 = flags;
		1537
		1538	REQ_SEND;
		1539	}
		1540	}
		1541
		1542	void
		1543	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1544	PPCODE:
		1545	{
		1546	STRLEN svlen;
		1547	char *svptr = SvPVbyte (data, svlen);
		1548	UV len = SvUV (length);
		1549
		1550	if (offset < 0)
		1551	offset += svlen;
		1552
		1553	if (offset < 0 || offset > svlen)
		1554	croak ("offset outside of scalar");
		1555
		1556	if (!SvOK (length) || len + offset > svlen)
		1557	len = svlen - offset;
		1558
		1559	{
		1560	dREQ;
		1561
		1562	req->type = EIO_MLOCK;
		1563	req->sv2 = SvREFCNT_inc (data);
		1564	req->ptr2 = (char *)svptr + offset;
		1565	req->size = len;
		1566
		1567	REQ_SEND;
		1568	}
		1569	}
		1570
		1571	void
		1572	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1573	PPCODE:
		1574	{
		1575	dREQ;
		1576
		1577	req->type = EIO_MLOCKALL;
		1578	req->int1 = flags;
		1579
		1580	REQ_SEND;
		1581	}
		1582
		1583	void
		1584	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1585	PPCODE:
		1586	{
		1587	int fd = s_fileno_croak (fh, 0);
		1588	dREQ;
		1589
		1590	req->type = EIO_CUSTOM;
		1591	req->sv1 = newSVsv (fh);
		1592	req->int1 = fd;
		1593
		1594	req->feed = fiemap;
		1595	#if HAVE_FIEMAP
		1596	/* keep our fingers crossed that the next two types are 64 bit */
		1597	req->offs = start;
		1598	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1599	req->int2 = flags;
		1600	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1601	#endif
		1602
		1603	REQ_SEND;
		1604	}
		1605
		1606	void
859	aio_busy (double delay, SV *callback=&PL_sv_undef)	1607	aio_busy (double delay, SV *callback = &PL_sv_undef)
860	PPCODE:	1608	PPCODE:
861	{	1609	{
862	dREQ;	1610	dREQ;
863		1611
864	req->type = EIO_BUSY;	1612	req->type = EIO_BUSY;
…		…
866		1614
867	REQ_SEND;	1615	REQ_SEND;
868	}	1616	}
869		1617
870	void	1618	void
871	aio_group (SV *callback=&PL_sv_undef)	1619	aio_group (SV *callback = &PL_sv_undef)
872	PROTOTYPE: ;$
873	PPCODE:	1620	PPCODE:
874	{	1621	{
875	dREQ;	1622	dREQ;
876		1623
877	req->type = EIO_GROUP;	1624	req->type = EIO_GROUP;
878		1625
		1626	PUTBACK;
879	eio_submit (req);	1627	req_submit (req);
		1628	SPAGAIN;
		1629
880	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1630	XPUSHs (req_sv (req, aio_grp_stash));
881	}	1631	}
882		1632
883	void	1633	void
884	aio_nop (SV *callback=&PL_sv_undef)	1634	aio_nop (SV *callback = &PL_sv_undef)
885	ALIAS:	1635	ALIAS:
886	aio_nop = EIO_NOP	1636	aio_nop = EIO_NOP
887	aio_sync = EIO_SYNC	1637	aio_sync = EIO_SYNC
888	PPCODE:	1638	PPCODE:
889	{	1639	{
…		…
893		1643
894	REQ_SEND;	1644	REQ_SEND;
895	}	1645	}
896		1646
897	int	1647	int
898	aioreq_pri (int pri = 0)	1648	aioreq_pri (int pri = NO_INIT)
899	PROTOTYPE: ;$
900	CODE:	1649	CODE:
901	RETVAL = next_pri - EIO_PRI_BIAS;	1650	RETVAL = next_pri;
902	if (items > 0)	1651	if (items > 0)
903	{	1652	{
904	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1653	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
905	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1654	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
906	next_pri = pri + EIO_PRI_BIAS;	1655	next_pri = pri;
907	}	1656	}
908	OUTPUT:	1657	OUTPUT:
909	RETVAL	1658	RETVAL
910		1659
911	void	1660	void
912	aioreq_nice (int nice = 0)	1661	aioreq_nice (int nice = 0)
913	CODE:	1662	CODE:
914	nice = next_pri - nice;	1663	nice = next_pri - nice;
915	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1664	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
916	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1665	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
917	next_pri = nice + EIO_PRI_BIAS;	1666	next_pri = nice;
918		1667
919	void	1668	void
920	flush ()	1669	flush ()
921	PROTOTYPE:
922	CODE:	1670	CODE:
923	while (nreqs)	1671	while (eio_nreqs ())
924	{	1672	{
925	poll_wait ();	1673	poll_wait ();
926	poll_cb ();	1674	poll_cb ();
927	}	1675	}
928		1676
929	int	1677	int
930	poll()	1678	poll ()
931	PROTOTYPE:
932	CODE:	1679	CODE:
933	poll_wait ();	1680	poll_wait ();
934	RETVAL = poll_cb ();	1681	RETVAL = poll_cb ();
935	OUTPUT:	1682	OUTPUT:
936	RETVAL	1683	RETVAL
937		1684
938	int	1685	int
939	poll_fileno()	1686	poll_fileno ()
940	PROTOTYPE:
941	CODE:	1687	CODE:
942	RETVAL = respipe [0];	1688	RETVAL = s_epipe_fd (&respipe);
943	OUTPUT:	1689	OUTPUT:
944	RETVAL	1690	RETVAL
945		1691
946	int	1692	int
947	poll_cb(...)	1693	poll_cb (...)
948	PROTOTYPE:	1694	PROTOTYPE:
949	CODE:	1695	CODE:
950	RETVAL = poll_cb ();	1696	RETVAL = poll_cb ();
951	OUTPUT:	1697	OUTPUT:
952	RETVAL	1698	RETVAL
953		1699
954	void	1700	void
955	poll_wait()	1701	poll_wait ()
956	PROTOTYPE:
957	CODE:	1702	CODE:
958	poll_wait ();	1703	poll_wait ();
959		1704
960	int	1705	int
961	nreqs()	1706	nreqs ()
962	PROTOTYPE:
963	CODE:	1707	CODE:
964	RETVAL = eio_nreqs ();	1708	RETVAL = eio_nreqs ();
965	OUTPUT:	1709	OUTPUT:
966	RETVAL	1710	RETVAL
967		1711
968	int	1712	int
969	nready()	1713	nready ()
970	PROTOTYPE:
971	CODE:	1714	CODE:
972	RETVAL = eio_nready ();	1715	RETVAL = eio_nready ();
973	OUTPUT:	1716	OUTPUT:
974	RETVAL	1717	RETVAL
975		1718
976	int	1719	int
977	npending()	1720	npending ()
978	PROTOTYPE:
979	CODE:	1721	CODE:
980	RETVAL = eio_npending ();	1722	RETVAL = eio_npending ();
981	OUTPUT:	1723	OUTPUT:
982	RETVAL	1724	RETVAL
983		1725
984	int	1726	int
985	nthreads()	1727	nthreads ()
986	PROTOTYPE:
987	CODE:	1728	CODE:
988	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1729	RETVAL = eio_nthreads ();
989	RETVAL = started;
990	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
991	OUTPUT:	1730	OUTPUT:
992	RETVAL	1731	RETVAL
993		1732
		1733	int
		1734	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1735	CODE:
		1736	RETVAL = posix_fadvise (fh, offset, length, advice);
		1737	OUTPUT:
		1738	RETVAL
		1739
		1740	IV
		1741	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1742	CODE:
		1743	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1744	OUTPUT:
		1745	RETVAL
		1746
		1747	void
		1748	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1749	PPCODE:
		1750	sv_unmagic (scalar, MMAP_MAGIC);
		1751	{
		1752	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1753	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1754	if (addr == (void *)-1)
		1755	XSRETURN_NO;
		1756
		1757	sv_force_normal (scalar);
		1758
		1759	/* we store the length in mg_obj, as namlen is I32 :/ */
		1760	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1761	->mg_obj = (SV *)length;
		1762
		1763	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1764
		1765	if (!(prot & PROT_WRITE))
		1766	SvREADONLY_on (scalar);
		1767
		1768	if (SvLEN (scalar))
		1769	Safefree (SvPVX (scalar));
		1770
		1771	SvPVX (scalar) = (char *)addr;
		1772	SvCUR_set (scalar, length);
		1773	SvLEN_set (scalar, 0);
		1774	SvPOK_only (scalar);
		1775
		1776	XSRETURN_YES;
		1777	}
		1778
		1779	void
		1780	munmap (SV *scalar)
		1781	CODE:
		1782	sv_unmagic (scalar, MMAP_MAGIC);
		1783
		1784	int
		1785	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1786	ALIAS:
		1787	mprotect = 1
		1788	CODE:
		1789	{
		1790	STRLEN svlen;
		1791	void *addr = SvPVbyte (scalar, svlen);
		1792	STRLEN len = SvUV (length);
		1793
		1794	if (offset < 0)
		1795	offset += svlen;
		1796
		1797	if (offset < 0 || offset > svlen)
		1798	croak ("offset outside of scalar");
		1799
		1800	if (!SvOK (length) || len + offset > svlen)
		1801	len = svlen - offset;
		1802
		1803	addr = (void *)(((intptr_t)addr) + offset);
		1804	eio_page_align (&addr, &len);
		1805
		1806	switch (ix)
		1807	{
		1808	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1809	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1810	}
		1811	}
		1812	OUTPUT:
		1813	RETVAL
		1814
		1815	int
		1816	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		1817	CODE:
		1818	{
		1819	STRLEN svlen;
		1820	void *addr = SvPVbyte (scalar, svlen);
		1821	size_t len = SvUV (length);
		1822
		1823	if (offset < 0)
		1824	offset += svlen;
		1825
		1826	if (offset < 0 || offset > svlen)
		1827	croak ("offset outside of scalar");
		1828
		1829	if (!SvOK (length) || len + offset > svlen)
		1830	len = svlen - offset;
		1831
		1832	addr = (void *)(((intptr_t)addr) + offset);
		1833	eio_page_align (&addr, &len);
		1834	#if _POSIX_MEMLOCK_RANGE
		1835	RETVAL = munlock (addr, len);
		1836	#else
		1837	RETVAL = EIO_ENOSYS ();
		1838	#endif
		1839	}
		1840	OUTPUT:
		1841	RETVAL
		1842
		1843	int
		1844	munlockall ()
		1845	CODE:
		1846	#if _POSIX_MEMLOCK
		1847	munlockall ();
		1848	#else
		1849	RETVAL = EIO_ENOSYS ();
		1850	#endif
		1851	OUTPUT:
		1852	RETVAL
		1853
		1854	int
		1855	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1856	CODE:
		1857	{
		1858	#if HAVE_LINUX_SPLICE
		1859	loff_t off_in_, off_out_;
		1860	RETVAL = splice (
		1861	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1862	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1863	length, flags
		1864	);
		1865	#else
		1866	RETVAL = EIO_ENOSYS ();
		1867	#endif
		1868	}
		1869	OUTPUT:
		1870	RETVAL
		1871
		1872	int
		1873	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1874	CODE:
		1875	#if HAVE_LINUX_SPLICE
		1876	RETVAL = tee (rfh, wfh, length, flags);
		1877	#else
		1878	RETVAL = EIO_ENOSYS ();
		1879	#endif
		1880	OUTPUT:
		1881	RETVAL
		1882
		1883	int
		1884	pipesize (aio_rfd rfh, int new_size = -1)
		1885	PROTOTYPE: $;$
		1886	CODE:
		1887	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		1888	if (new_size >= 0)
		1889	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		1890	else
		1891	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		1892	#else
		1893	errno = ENOSYS;
		1894	RETVAL = -1;
		1895	#endif
		1896	OUTPUT:
		1897	RETVAL
		1898
		1899	void _on_next_submit (SV *cb)
		1900	CODE:
		1901	SvREFCNT_dec (on_next_submit);
		1902	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		1903
994	PROTOTYPES: DISABLE	1904	PROTOTYPES: DISABLE
		1905
		1906	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1907
		1908	BOOT:
		1909	{
		1910	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1911	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1912	}
		1913
		1914	void
		1915	DESTROY (SV *self)
		1916	CODE:
		1917	{
		1918	aio_wd wd = SvAIO_WD (self);
		1919	#if HAVE_AT
		1920	{
		1921	SV *callback = &PL_sv_undef;
		1922	dREQ; /* clobbers next_pri :/ */
		1923	next_pri = req->pri; /* restore next_pri */
		1924	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1925	req->type = EIO_WD_CLOSE;
		1926	req->wd = wd;
		1927	REQ_SEND;
		1928	}
		1929	#else
		1930	eio_wd_close_sync (wd);
		1931	#endif
		1932	}
995		1933
996	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1934	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
997		1935
998	void	1936	void
999	cancel (aio_req_ornot req)	1937	cancel (aio_req_ornot req)
1000	CODE:	1938	CODE:
1001	eio_cancel (req);	1939	eio_cancel (req);
1002		1940
1003	void	1941	void
1004	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1942	cb (aio_req_ornot req, SV *callback = NO_INIT)
1005	CODE:	1943	PPCODE:
		1944	{
		1945	if (GIMME_V != G_VOID)
		1946	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1947
		1948	if (items > 1)
		1949	{
		1950	SV *cb_cv = get_cb (callback);
		1951
1006	SvREFCNT_dec (req->callback);	1952	SvREFCNT_dec (req->callback);
1007	req->callback = newSVsv (callback);	1953	req->callback = SvREFCNT_inc (cb_cv);
		1954	}
		1955	}
1008		1956
1009	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1957	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1010		1958
1011	void	1959	void
1012	add (aio_req grp, ...)	1960	add (aio_req grp, ...)
…		…
1044	AV *av;	1992	AV *av;
1045		1993
1046	grp->errorno = errno;	1994	grp->errorno = errno;
1047		1995
1048	av = newAV ();	1996	av = newAV ();
		1997	av_extend (av, items - 1);
1049		1998
1050	for (i = 1; i < items; ++i )	1999	for (i = 1; i < items; ++i )
1051	av_push (av, newSVsv (ST (i)));	2000	av_push (av, newSVsv (ST (i)));
1052		2001
1053	SvREFCNT_dec (grp->sv1);	2002	SvREFCNT_dec (grp->sv1);
…		…
1063	limit (aio_req grp, int limit)	2012	limit (aio_req grp, int limit)
1064	CODE:	2013	CODE:
1065	eio_grp_limit (grp, limit);	2014	eio_grp_limit (grp, limit);
1066		2015
1067	void	2016	void
1068	feed (aio_req grp, SV *callback=&PL_sv_undef)	2017	feed (aio_req grp, SV *callback = &PL_sv_undef)
1069	CODE:	2018	CODE:
1070	{	2019	{
1071	SvREFCNT_dec (grp->sv2);	2020	SvREFCNT_dec (grp->sv2);
1072	grp->sv2 = newSVsv (callback);	2021	grp->sv2 = newSVsv (callback);
		2022	grp->feed = aio_grp_feed;
1073		2023
1074	if (grp->int2 <= 0)	2024	if (grp->int2 <= 0)
1075	grp->int2 = 2;	2025	grp->int2 = 2;
1076		2026
1077	eio_grp_limit (grp, grp->int2);	2027	eio_grp_limit (grp, grp->int2);

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