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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.116 by root, Sat May 10 19:25:33 2008 UTC vs.
Revision 1.225 by root, Sat Dec 29 09:35:39 2012 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8
		9	#include "schmorp.h"
8		10
9	#include <stddef.h>	11	#include <stddef.h>
10	#include <stdlib.h>	12	#include <stdlib.h>
11	#include <errno.h>	13	#include <errno.h>
12	#include <sys/types.h>	14	#include <sys/types.h>
13	#include <sys/stat.h>	15	#include <sys/stat.h>
14	#include <limits.h>	16	#include <limits.h>
15	#include <fcntl.h>	17	#include <fcntl.h>
16	#include <sched.h>	18	#include <sched.h>
17		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
		24	#if __linux__
		25	# include <linux/fs.h>
		26	# ifdef FS_IOC_FIEMAP
		27	# include <linux/types.h>
		28	# include <linux/fiemap.h>
		29	# define HAVE_FIEMAP 1
		30	# endif
		31	#endif
		32
		33	/* perl namespace pollution */
		34	#undef VERSION
		35
		36	/* perl stupidly overrides readdir and maybe others */
		37	/* with thread-unsafe versions, imagine that :( */
		38	#undef readdir
		39	#undef opendir
		40	#undef closedir
		41
18	#ifdef _WIN32	42	#ifdef _WIN32
19		43
20	# define EIO_STRUCT_DIRENT Direntry_t
21	# undef malloc
22	# undef free
23
24	// perl overrides all those nice win32 functions	44	// perl overrides all those nice libc functions
		45
		46	#undef malloc
		47	#undef free
25	# undef open	48	#undef open
26	# undef read	49	#undef read
27	# undef write	50	#undef write
28	# undef send	51	#undef send
29	# undef recv	52	#undef recv
30	# undef stat	53	#undef stat
		54	#undef lstat
31	# undef fstat	55	#undef fstat
32	# define lstat stat
33	# undef truncate	56	#undef truncate
34	# undef ftruncate	57	#undef ftruncate
35	# undef open	58	#undef open
		59	#undef link
36	# undef close	60	#undef close
37	# undef unlink	61	#undef unlink
		62	#undef mkdir
38	# undef rmdir	63	#undef rmdir
39	# undef rename	64	#undef rename
40	# undef lseek	65	#undef lseek
		66	#undef opendir
		67	#undef readdir
		68	#undef closedir
		69	#undef chmod
		70	#undef fchmod
		71	#undef dup
		72	#undef dup2
		73	#undef abort
		74	#undef pipe
41		75
42	# define chown(a,b,c) (errno = ENOSYS, -1)	76	#define EIO_STRUCT_STAT struct _stati64
43	# define fchown(a,b,c) (errno = ENOSYS, -1)	77	#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		78
56	#else	79	#else
57		80
58	# include <sys/time.h>	81	#include <sys/time.h>
59	# include <sys/select.h>	82	#include <sys/select.h>
60	# include <unistd.h>	83	#include <unistd.h>
61	# include <utime.h>	84	#include <utime.h>
62	# include <signal.h>	85	#include <signal.h>
63	# define EIO_STRUCT_DIRENT struct dirent
64		86
65	#endif
66
67	#define EIO_STRUCT_STAT Stat_t	87	#define EIO_STRUCT_STAT Stat_t
68		88
69	/* use NV for 32 bit perls as it allows larger offsets */	89	#endif
70	#if IVSIZE >= 8	90
71	# define SvVAL64 SvIV	91	/*****************************************************************************/
		92
		93	#if __GNUC__ >= 3
		94	# define expect(expr,value) __builtin_expect ((expr),(value))
72	#else	95	#else
73	# define SvVAL64 SvNV	96	# define expect(expr,value) (expr)
74	#endif	97	#endif
75		98
76	static HV *stash;	99	#define expect_false(expr) expect ((expr) != 0, 0)
		100	#define expect_true(expr) expect ((expr) != 0, 1)
		101
		102	/*****************************************************************************/
		103
77	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
		105	typedef int aio_rfd; /* read file desriptor */
		106	typedef int aio_wfd; /* write file descriptor */
78		107
79	#define AIO_REQ_KLASS "IO::AIO::REQ"	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
80	#define AIO_GRP_KLASS "IO::AIO::GRP"
81		109
82	#define EIO_COMMON \	110	#define EIO_REQ_MEMBERS \
83	SV *callback; \	111	SV *callback; \
84	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
85	STRLEN stroffset; \	114	STRLEN stroffset; \
86	SV *self	115	SV *self;
87		116
		117	#define EIO_NO_WRAPPERS 1
		118
		119	#include "libeio/config.h"
88	#include "libeio/eio.h"	120	#include "libeio/eio.h"
89		121
90	static int req_invoke (eio_req *req);	122	static int req_invoke (eio_req *req);
91	#define EIO_FINISH(req) req_invoke (req)	123	#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);	124	static void req_destroy (eio_req *grp);
95	#define EIO_DESTROY(req) req_destroy (req)	125	#define EIO_DESTROY(req) req_destroy (req)
		126
		127	#include "libeio/eio.c"
		128
		129	#if !HAVE_POSIX_FADVISE
		130	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		131	#endif
		132
		133	#if !HAVE_POSIX_MADVISE
		134	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		135	#endif
		136
		137	#ifndef MAP_ANONYMOUS
		138	# ifdef MAP_ANON
		139	# define MAP_ANONYMOUS MAP_ANON
		140	# else
		141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		142	# endif
		143	#endif
		144
		145	/* defines all sorts of constants to 0 unless they are already defined */
		146	#include "def0.h"
		147
		148	#ifndef makedev
		149	# define makedev(maj,min) (((maj) << 8) | (min))
		150	#endif
		151	#ifndef major
		152	# define major(dev) ((dev) >> 8)
		153	#endif
		154	#ifndef minor
		155	# define minor(dev) ((dev) & 0xff)
		156	#endif
		157
		158	#if PAGESIZE <= 0
		159	# define PAGESIZE sysconf (_SC_PAGESIZE)
		160	#endif
		161
		162	/*****************************************************************************/
		163
		164	static void
		165	fiemap (eio_req *req)
		166	{
		167	req->result = -1;
		168
		169	#if HAVE_FIEMAP
		170	/* assume some c99 */
		171	struct fiemap *fiemap = 0;
		172	size_t end_offset;
		173	int count = req->int3;
		174
		175	req->flags |= EIO_FLAG_PTR1_FREE;
		176
		177	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		178	/* increase in 3.5kb steps */
		179	if (count < 0)
		180	count = 8;
		181
		182	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		183	errno = ENOMEM;
		184	if (!fiemap)
		185	return;
		186
		187	req->ptr1 = fiemap;
		188
		189	fiemap->fm_start = req->offs;
		190	fiemap->fm_length = req->size;
		191	fiemap->fm_flags = req->int2;
		192	fiemap->fm_extent_count = count;
		193
		194	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		195	return;
		196
		197	if (req->int3 >= 0 /* not autosizing */
		198	|| !fiemap->fm_mapped_extents /* no more extents */
		199	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		200	goto done;
		201
		202	/* else we have to loop -
		203	* it would be tempting (atcually I tried that first) to just query the
		204	* number of extents needed, but linux often feels like not returning all
		205	* extents, without telling us it left any out. this complicates
		206	* this quite a bit.
		207	*/
		208
		209	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		210
		211	for (;;)
		212	{
		213	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		214	char scratch[3072];
		215	struct fiemap *incmap = (struct fiemap *)scratch;
		216
		217	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		218	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		219	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		220	incmap->fm_flags = fiemap->fm_flags;
		221	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		222
		223	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		224	return;
		225
		226	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		227	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		228	errno = ENOMEM;
		229	if (!fiemap)
		230	return;
		231
		232	req->ptr1 = fiemap;
		233
		234	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		235	{
		236	struct fiemap_extent *e = incmap->fm_extents + count;
		237
		238	if (e->fe_logical + e->fe_length >= end_offset)
		239	goto done;
		240
		241	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		242
		243	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		244	goto done;
		245
		246	}
		247	}
		248
		249	done:
		250	req->result = 0;
		251
		252	#else
		253	errno = ENOSYS;
		254	#endif
		255	}
		256
		257	/*****************************************************************************/
96		258
97	enum {	259	enum {
98	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	260	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
99	};	261	};
100		262
101	#include "libeio/eio.c"
102
103	typedef eio_req *aio_req;	263	typedef eio_req *aio_req;
104	typedef eio_req *aio_req_ornot;	264	typedef eio_req *aio_req_ornot;
		265	typedef eio_wd aio_wd;
105		266
		267	static SV *on_next_submit;
		268	static int next_pri = EIO_PRI_DEFAULT;
106	static int max_outstanding = 0;	269	static int max_outstanding;
107		270
108	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	271	static s_epipe respipe;
109
110	static int respipe_osf [2], respipe [2] = { -1, -1 };
111		272
112	static void req_destroy (aio_req req);	273	static void req_destroy (aio_req req);
113	static void req_cancel (aio_req req);	274	static void req_cancel (aio_req req);
114		275
115	static void want_poll (void)	276	static void
		277	want_poll (void)
116	{	278	{
117	/* write a dummy byte to the pipe so fh becomes ready */	279	/* write a dummy byte to the pipe so fh becomes ready */
118	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	280	s_epipe_signal (&respipe);
119	}	281	}
120		282
121	static void done_poll (void)	283	static void
		284	done_poll (void)
122	{	285	{
123	/* read any signals sent by the worker threads */	286	/* read any signals sent by the worker threads */
124	char buf [4];	287	s_epipe_drain (&respipe);
125	while (respipe_read (respipe [0], buf, 4) == 4)
126	;
127	}	288	}
128		289
129	/* must be called at most once */	290	/* must be called at most once */
130	static SV *req_sv (aio_req req, const char *klass)	291	static SV *
		292	req_sv (aio_req req, HV *stash)
131	{	293	{
132	if (!req->self)	294	if (!req->self)
133	{	295	{
134	req->self = (SV *)newHV ();	296	req->self = (SV *)newHV ();
135	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	297	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
136	}	298	}
137		299
138	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	300	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
139	}	301	}
140		302
141	static aio_req SvAIO_REQ (SV *sv)	303	static SV *
		304	newSVaio_wd (aio_wd wd)
		305	{
		306	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		307	}
		308
		309	static aio_req
		310	SvAIO_REQ (SV *sv)
142	{	311	{
143	MAGIC *mg;	312	MAGIC *mg;
144		313
145	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	314	if (!SvROK (sv)
		315	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		316	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		317	&& SvSTASH (SvRV (sv)) != aio_req_stash
		318	&& !sv_derived_from (sv, "IO::AIO::REQ")))
146	croak ("object of class " AIO_REQ_KLASS " expected");	319	croak ("object of class IO::AIO::REQ expected");
147		320
148	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	321	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
149		322
150	return mg ? (aio_req)mg->mg_ptr : 0;	323	return mg ? (aio_req)mg->mg_ptr : 0;
151	}	324	}
152		325
		326	static aio_wd
		327	SvAIO_WD (SV *sv)
		328	{
		329	if (!SvROK (sv)
		330	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		331	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		332	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		333
		334	return (aio_wd)(long)SvIVX (SvRV (sv));
		335	}
		336
		337	static void
153	static void aio_grp_feed (aio_req grp)	338	aio_grp_feed (aio_req grp)
154	{	339	{
155	if (grp->sv2 && SvOK (grp->sv2))	340	if (grp->sv2 && SvOK (grp->sv2))
156	{	341	{
157	dSP;	342	dSP;
158		343
159	ENTER;	344	ENTER;
160	SAVETMPS;	345	SAVETMPS;
161	PUSHMARK (SP);	346	PUSHMARK (SP);
162	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	347	XPUSHs (req_sv (grp, aio_grp_stash));
163	PUTBACK;	348	PUTBACK;
164	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	349	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
165	SPAGAIN;	350	SPAGAIN;
166	FREETMPS;	351	FREETMPS;
167	LEAVE;	352	LEAVE;
168	}	353	}
169	}	354	}
170		355
		356	static void
		357	req_submit (eio_req *req)
		358	{
		359	eio_submit (req);
		360
		361	if (expect_false (on_next_submit))
		362	{
		363	dSP;
		364	SV *cb = sv_2mortal (on_next_submit);
		365
		366	on_next_submit = 0;
		367
		368	PUSHMARK (SP);
		369	PUTBACK;
		370	call_sv (cb, G_DISCARD | G_EVAL);
		371	}
		372	}
		373
		374	static int
171	static int req_invoke (eio_req *req)	375	req_invoke (eio_req *req)
172	{	376	{
173	dSP;
174
175	if (req->flags & FLAG_SV2_RO_OFF)	377	if (req->flags & FLAG_SV2_RO_OFF)
176	SvREADONLY_off (req->sv2);	378	SvREADONLY_off (req->sv2);
177		379
178	if (!EIO_CANCELLED (req) && SvOK (req->callback))	380	if (!EIO_CANCELLED (req) && req->callback)
179	{	381	{
		382	dSP;
		383	static SV *sv_result_cache; /* caches the result integer SV */
		384	SV *sv_result;
		385
180	ENTER;	386	ENTER;
181	SAVETMPS;	387	SAVETMPS;
182	PUSHMARK (SP);	388	PUSHMARK (SP);
183	EXTEND (SP, 1);	389	EXTEND (SP, 1);
184		390
		391	/* do not recreate the result IV from scratch each time */
		392	if (expect_true (sv_result_cache))
		393	{
		394	sv_result = sv_result_cache; sv_result_cache = 0;
		395	SvIV_set (sv_result, req->result);
		396	SvIOK_only (sv_result);
		397	}
		398	else
		399	{
		400	sv_result = newSViv (req->result);
		401	SvREADONLY_on (sv_result);
		402	}
		403
185	switch (req->type)	404	switch (req->type)
186	{	405	{
		406	case EIO_WD_OPEN:
		407	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		408	break;
		409
187	case EIO_READDIR:	410	case EIO_READDIR:
188	{	411	{
189	SV *rv = &PL_sv_undef;	412	SV *rv = &PL_sv_undef;
190		413
191	if (req->result >= 0)	414	if (req->result >= 0)
192	{	415	{
193	int i;	416	int i;
194	char *buf = req->ptr2;	417	char *names = (char *)req->ptr2;
		418	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
195	AV *av = newAV ();	419	AV *av = newAV ();
196		420
197	av_extend (av, req->result - 1);	421	av_extend (av, req->result - 1);
198		422
199	for (i = 0; i < req->result; ++i)	423	for (i = 0; i < req->result; ++i)
200	{	424	{
201	SV *sv = newSVpv (buf, 0);	425	if (req->int1 & EIO_READDIR_DENTS)
		426	{
		427	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
202		428
		429	if (req->int1 & EIO_READDIR_CUSTOM2)
		430	{
		431	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		432	AV *avent = newAV ();
		433
		434	av_extend (avent, 2);
		435
		436	if (!sv_type [ent->type])
		437	{
		438	sv_type [ent->type] = newSViv (ent->type);
		439	SvREADONLY_on (sv_type [ent->type]);
		440	}
		441
		442	av_store (avent, 0, namesv);
		443	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		444	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		445
		446	av_store (av, i, newRV_noinc ((SV *)avent));
		447	}
		448	else
203	av_store (av, i, sv);	449	av_store (av, i, namesv);
		450
		451	++ent;
		452	}
		453	else
		454	{
		455	SV *name = newSVpv (names, 0);
		456	av_store (av, i, name);
204	buf += SvCUR (sv) + 1;	457	names += SvCUR (name) + 1;
		458	}
205	}	459	}
206		460
207	rv = sv_2mortal (newRV_noinc ((SV *)av));	461	rv = sv_2mortal (newRV_noinc ((SV *)av));
208	}	462	}
209		463
210	PUSHs (rv);	464	PUSHs (rv);
		465
		466	if (req->int1 & EIO_READDIR_CUSTOM1)
		467	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
211	}	468	}
212	break;	469	break;
213		470
214	case EIO_OPEN:	471	case EIO_OPEN:
215	{	472	{
…		…
221	GV *gv = (GV *)sv_newmortal ();	478	GV *gv = (GV *)sv_newmortal ();
222	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	479	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
223	char sym [64];	480	char sym [64];
224	int symlen;	481	int symlen;
225		482
226	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	483	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
227	gv_init (gv, stash, sym, symlen, 0);	484	gv_init (gv, aio_stash, sym, symlen, 0);
228		485
229	symlen = snprintf (	486	symlen = snprintf (
230	sym,	487	sym,
231	sizeof (sym),	488	sizeof (sym),
232	"%s&=%d",	489	"%s&=%d",
233	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	490	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
234	req->result	491	(int)req->result
235	);	492	);
236		493
237	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	494	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
238	fh = (SV *)gv;	495	fh = (SV *)gv;
239	}	496	}
240		497
241	PUSHs (fh);	498	PUSHs (fh);
242	}	499	}
		500	break;
		501
		502	case EIO_STATVFS:
		503	case EIO_FSTATVFS:
		504	{
		505	SV *rv = &PL_sv_undef;
		506
		507	#ifndef _WIN32
		508	if (req->result >= 0)
		509	{
		510	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		511	HV *hv = newHV ();
		512	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		513	* chooses to make it a struct.
		514	*/
		515	unsigned long fsid = 0;
		516	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
		517
		518	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		519
		520	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		521	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		522	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		523	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		524	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		525	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		526	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		527	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		528	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		529	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		530	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		531	}
		532	#endif
		533
		534	PUSHs (rv);
		535	}
		536
243	break;	537	break;
244		538
245	case EIO_GROUP:	539	case EIO_GROUP:
246	req->int1 = 2; /* mark group as finished */	540	req->int1 = 2; /* mark group as finished */
247		541
…		…
259	case EIO_NOP:	553	case EIO_NOP:
260	case EIO_BUSY:	554	case EIO_BUSY:
261	break;	555	break;
262		556
263	case EIO_READLINK:	557	case EIO_READLINK:
		558	case EIO_REALPATH:
264	if (req->result > 0)	559	if (req->result > 0)
265	{	560	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;	561	break;
271		562
272	case EIO_STAT:	563	case EIO_STAT:
273	case EIO_LSTAT:	564	case EIO_LSTAT:
274	case EIO_FSTAT:	565	case EIO_FSTAT:
275	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	566	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		567
276	PL_laststatval = req->result;	568	if (!(PL_laststatval = req->result))
		569	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
277	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	570	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
278	PUSHs (sv_2mortal (newSViv (req->result)));	571
		572	PUSHs (sv_result);
279	break;	573	break;
280		574
		575	case EIO_SEEK:
		576	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		577	break;
		578
281	case EIO_READ:	579	case EIO_READ:
		580	{
282	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	581	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
283	*SvEND (req->sv2) = 0;	582	*SvEND (req->sv2) = 0;
284	PUSHs (sv_2mortal (newSViv (req->result)));	583	SvPOK_only (req->sv2);
		584	SvSETMAGIC (req->sv2);
		585	PUSHs (sv_result);
		586	}
285	break;	587	break;
286		588
287	case EIO_DUP2:	589	case EIO_CUSTOM:
		590	if (req->feed == fiemap)
		591	{
		592	#if HAVE_FIEMAP
		593	if (!req->result)
		594	{
		595	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		596
		597	if (fiemap->fm_extent_count)
		598	{
		599	AV *av = newAV ();
		600	int i;
		601
		602	while (fiemap->fm_mapped_extents)
		603	{
		604	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		605	AV *ext_av = newAV ();
		606
		607	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		608	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		609	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		610	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		611
		612	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		613	}
		614
		615	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		616	}
		617	else
		618	{
		619	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		620	PUSHs (sv_result);
		621	}
		622	}
		623	#endif
		624	}
		625	else
		626	PUSHs (sv_result);
		627	break;
		628
		629	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
288	if (req->result > 0)	630	if (req->result > 0)
289	req->result = 0;	631	SvIV_set (sv_result, 0);
290	/* FALLTHROUGH */	632	/* FALLTHROUGH */
291		633
292	default:	634	default:
293	PUSHs (sv_2mortal (newSViv (req->result)));	635	PUSHs (sv_result);
294	break;	636	break;
295	}	637	}
296		638
297	errno = req->errorno;	639	errno = req->errorno;
298		640
299	PUTBACK;	641	PUTBACK;
300	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	642	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
301	SPAGAIN;	643	SPAGAIN;
302		644
		645	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		646	SvREFCNT_dec (sv_result);
		647	else
		648	sv_result_cache = sv_result;
		649
303	FREETMPS;	650	FREETMPS;
304	LEAVE;	651	LEAVE;
305		652
306	PUTBACK;	653	PUTBACK;
307	}	654	}
308		655
309	return !!SvTRUE (ERRSV);	656	return !!SvTRUE (ERRSV);
310	}	657	}
311		658
		659	static void
312	static void req_destroy (aio_req req)	660	req_destroy (aio_req req)
313	{	661	{
314	if (req->self)	662	if (req->self)
315	{	663	{
316	sv_unmagic (req->self, PERL_MAGIC_ext);	664	sv_unmagic (req->self, PERL_MAGIC_ext);
317	SvREFCNT_dec (req->self);	665	SvREFCNT_dec (req->self);
318	}	666	}
319		667
320	SvREFCNT_dec (req->sv1);	668	SvREFCNT_dec (req->sv1);
321	SvREFCNT_dec (req->sv2);	669	SvREFCNT_dec (req->sv2);
		670	SvREFCNT_dec (req->sv3);
		671	SvREFCNT_dec (req->sv4);
322	SvREFCNT_dec (req->callback);	672	SvREFCNT_dec (req->callback);
323		673
324	Safefree (req);	674	free (req);
325	}	675	}
326		676
		677	static void
327	static void req_cancel_subs (aio_req grp)	678	req_cancel_subs (aio_req grp)
328	{	679	{
329	aio_req sub;
330
331	if (grp->type != EIO_GROUP)	680	if (grp->type != EIO_GROUP)
332	return;	681	return;
333		682
334	SvREFCNT_dec (grp->sv2);	683	SvREFCNT_dec (grp->sv2);
335	grp->sv2 = 0;	684	grp->sv2 = 0;
336		685
337	eio_grp_cancel (grp);	686	eio_grp_cancel (grp);
338	}	687	}
339		688
340	#ifdef USE_SOCKETS_AS_HANDLES	689	static void ecb_cold
341	# define TO_SOCKET(x) (win32_get_osfhandle (x))	690	create_respipe (void)
342	#else	691	{
343	# define TO_SOCKET(x) (x)	692	if (s_epipe_renew (&respipe))
344	#endif	693	croak ("IO::AIO: unable to initialize result pipe");
		694	}
345		695
346	static void	696	static void
347	create_respipe (void)	697	poll_wait (void)
348	{	698	{
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 ())	699	while (eio_nreqs ())
389	{	700	{
390	int size;	701	int size;
391		702
392	X_LOCK (reslock);	703	X_LOCK (reslock);
…		…
394	X_UNLOCK (reslock);	705	X_UNLOCK (reslock);
395		706
396	if (size)	707	if (size)
397	return;	708	return;
398		709
399	maybe_start_thread ();	710	etp_maybe_start_thread ();
400		711
401	FD_ZERO (&rfd);	712	s_epipe_wait (&respipe);
402	FD_SET (respipe [0], &rfd);
403
404	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
405	}	713	}
406	}	714	}
407		715
408	static int poll_cb (void)	716	static int
		717	poll_cb (void)
409	{	718	{
410	int res;	719	for (;;)
411
412	do
413	{	720	{
414	res = eio_poll ();	721	int res = eio_poll ();
415		722
416	if (res > 0)	723	if (res > 0)
417	croak (0);	724	croak (0);
		725
		726	if (!max_outstanding || max_outstanding > eio_nreqs ())
		727	return res;
		728
		729	poll_wait ();
418	}	730	}
419	while (max_outstanding && max_outstanding <= eio_nreqs ());
420
421	return res;
422	}	731	}
423		732
424	static void atfork_child (void)	733	static void ecb_cold
		734	reinit (void)
425	{	735	{
426	create_respipe ();	736	create_respipe ();
		737
		738	if (eio_init (want_poll, done_poll) < 0)
		739	croak ("IO::AIO: unable to initialise eio library");
		740	}
		741
		742	/*****************************************************************************/
		743
		744	#if !_POSIX_MAPPED_FILES
		745	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		746	# define munmap(addr,length) EIO_ENOSYS ()
		747	#endif
		748
		749	#if !_POSIX_MEMORY_PROTECTION
		750	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		751	# define PROT_NONE 0
		752	# define PROT_WRITE 0
		753	# define MAP_PRIVATE 0
		754	# define MAP_SHARED 0
		755	# define MAP_FIXED 0
		756	#endif
		757
		758	#define MMAP_MAGIC PERL_MAGIC_ext
		759
		760	static int ecb_cold
		761	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		762	{
		763	int old_errno = errno;
		764	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		765	errno = old_errno;
		766
		767	mg->mg_obj = 0; /* just in case */
		768
		769	SvREADONLY_off (sv);
		770
		771	if (SvPVX (sv) != mg->mg_ptr)
		772	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		773
		774	SvCUR_set (sv, 0);
		775	SvPVX (sv) = 0;
		776	SvOK_off (sv);
		777
		778	return 0;
		779	}
		780
		781	static MGVTBL mmap_vtbl = {
		782	0, 0, 0, 0, mmap_free
		783	};
		784
		785	/*****************************************************************************/
		786
		787	static SV *
		788	get_cb (SV *cb_sv)
		789	{
		790	SvGETMAGIC (cb_sv);
		791	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		792	}
		793
		794	static aio_req ecb_noinline
		795	dreq (SV *callback)
		796	{
		797	SV *cb_cv;
		798	aio_req req;
		799	int req_pri = next_pri;
		800	next_pri = EIO_PRI_DEFAULT;
		801
		802	cb_cv = get_cb (callback);
		803
		804	req = calloc (sizeof (*req), 1);
		805	if (!req)
		806	croak ("out of memory during eio_req allocation");
		807
		808	req->callback = SvREFCNT_inc (cb_cv);
		809	req->pri = req_pri;
		810
		811	return req;
427	}	812	}
428		813
429	#define dREQ \	814	#define dREQ \
430	aio_req req; \	815	aio_req req = dreq (callback); \
431	int req_pri = next_pri; \
432	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \
433	\
434	if (SvOK (callback) && !SvROK (callback)) \
435	croak ("callback must be undef or of reference type"); \
436	\
437	Newz (0, req, 1, eio_req); \
438	if (!req) \
439	croak ("out of memory during eio_req allocation"); \
440	\
441	req->callback = newSVsv (callback); \
442	req->pri = req_pri
443		816
444	#define REQ_SEND \	817	#define REQ_SEND \
		818	PUTBACK; \
445	eio_submit (req); \	819	req_submit (req); \
		820	SPAGAIN; \
446	\	821	\
447	if (GIMME_V != G_VOID) \	822	if (GIMME_V != G_VOID) \
448	XPUSHs (req_sv (req, AIO_REQ_KLASS));	823	XPUSHs (req_sv (req, aio_req_stash));
449		824
		825	ecb_inline void
		826	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		827	{
		828	if (expect_false (SvROK (path)))
		829	{
		830	SV *rv = SvRV (path);
		831	SV *wdob;
		832
		833	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		834	{
		835	path = AvARRAY (rv)[1];
		836	wdob = AvARRAY (rv)[0];
		837
		838	if (SvOK (wdob))
		839	{
		840	*wd = SvAIO_WD (wdob);
		841	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		842	}
		843	else
		844	*wd = EIO_INVALID_WD;
		845	}
		846	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		847	{
		848	*wd = (aio_wd)(long)SvIVX (rv);
		849	*wdsv = SvREFCNT_inc_NN (rv);
		850	*ptr = ".";
		851	return; /* path set to "." */
		852	}
		853	else
		854	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		855	}
		856
		857	*pathsv = newSVsv (path);
		858	*ptr = SvPVbyte_nolen (*pathsv);
		859	}
		860
		861	static void ecb_noinline
		862	req_set_path1 (aio_req req, SV *path)
		863	{
		864	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		865	}
		866
		867	static void ecb_noinline
		868	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		869	{
		870	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		871
		872	switch (SvTYPE (rv))
		873	{
		874	case SVt_PVIO:
		875	case SVt_PVLV:
		876	case SVt_PVGV:
		877	req->type = type_fh;
		878	req->sv1 = newSVsv (fh_or_path);
		879	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		880	break;
		881
		882	default:
		883	req->type = type_path;
		884	req_set_path1 (req, fh_or_path);
		885	break;
		886	}
		887	}
		888
		889	XS(boot_IO__AIO) ecb_cold;
		890
450	MODULE = IO::AIO PACKAGE = IO::AIO	891	MODULE = IO::AIO PACKAGE = IO::AIO
451		892
452	PROTOTYPES: ENABLE	893	PROTOTYPES: ENABLE
453		894
454	BOOT:	895	BOOT:
455	{	896	{
		897	static const struct {
		898	const char *name;
		899	IV iv;
		900	} *civ, const_iv[] = {
		901	# define const_niv(name, value) { # name, (IV) value },
		902	# define const_iv(name) { # name, (IV) name },
		903	# define const_eio(name) { # name, (IV) EIO_ ## name },
		904
		905	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		906
		907	const_iv (ENOSYS)
		908	const_iv (EXDEV)
		909	const_iv (EBADR)
		910
		911	const_iv (O_RDONLY)
		912	const_iv (O_WRONLY)
		913	const_iv (O_RDWR)
		914	const_iv (O_CREAT)
		915	const_iv (O_TRUNC)
		916	const_iv (O_EXCL)
		917	const_iv (O_APPEND)
		918
		919	const_iv (O_ASYNC)
		920	const_iv (O_DIRECT)
		921	const_iv (O_NOATIME)
		922
		923	const_iv (O_CLOEXEC)
		924	const_iv (O_NOCTTY)
		925	const_iv (O_NOFOLLOW)
		926	const_iv (O_NONBLOCK)
		927	const_iv (O_EXEC)
		928	const_iv (O_SEARCH)
		929	const_iv (O_DIRECTORY)
		930	const_iv (O_DSYNC)
		931	const_iv (O_RSYNC)
		932	const_iv (O_SYNC)
		933	const_iv (O_TTY_INIT)
		934
		935	const_iv (S_IFIFO)
		936	const_iv (S_IFCHR)
		937	const_iv (S_IFBLK)
		938	const_iv (S_IFLNK)
		939	const_iv (S_IFREG)
		940	const_iv (S_IFDIR)
		941	const_iv (S_IFWHT)
		942	const_iv (S_IFSOCK)
		943	const_iv (S_IFMT)
		944
		945	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		946	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		947	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		948	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		949	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		950	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		951
		952	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		953	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		954	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		955	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		956	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		957
		958	const_iv (ST_RDONLY)
		959	const_iv (ST_NOSUID)
		960	const_iv (ST_NODEV)
		961	const_iv (ST_NOEXEC)
		962	const_iv (ST_SYNCHRONOUS)
		963	const_iv (ST_MANDLOCK)
		964	const_iv (ST_WRITE)
		965	const_iv (ST_APPEND)
		966	const_iv (ST_IMMUTABLE)
		967	const_iv (ST_NOATIME)
		968	const_iv (ST_NODIRATIME)
		969	const_iv (ST_RELATIME)
		970
		971	const_iv (PROT_NONE)
		972	const_iv (PROT_EXEC)
		973	const_iv (PROT_READ)
		974	const_iv (PROT_WRITE)
		975
		976	/*const_iv (MAP_FIXED)*/
		977	const_iv (MAP_PRIVATE)
		978	const_iv (MAP_SHARED)
		979	const_iv (MAP_ANONYMOUS)
		980
		981	/* linuxish */
		982	const_iv (MAP_HUGETLB)
		983	const_iv (MAP_LOCKED)
		984	const_iv (MAP_NORESERVE)
		985	const_iv (MAP_POPULATE)
		986	const_iv (MAP_NONBLOCK)
		987
		988	const_iv (FIEMAP_FLAG_SYNC)
		989	const_iv (FIEMAP_FLAG_XATTR)
		990	const_iv (FIEMAP_FLAGS_COMPAT)
		991	const_iv (FIEMAP_EXTENT_LAST)
		992	const_iv (FIEMAP_EXTENT_UNKNOWN)
		993	const_iv (FIEMAP_EXTENT_DELALLOC)
		994	const_iv (FIEMAP_EXTENT_ENCODED)
		995	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		996	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		997	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		998	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		999	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1000	const_iv (FIEMAP_EXTENT_MERGED)
		1001	const_iv (FIEMAP_EXTENT_SHARED)
		1002
		1003	const_iv (SPLICE_F_MOVE)
		1004	const_iv (SPLICE_F_NONBLOCK)
		1005	const_iv (SPLICE_F_MORE)
		1006	const_iv (SPLICE_F_GIFT)
		1007
		1008	const_iv (SEEK_DATA)
		1009	const_iv (SEEK_HOLE)
		1010
		1011	/* libeio constants */
		1012	const_eio (SEEK_SET)
		1013	const_eio (SEEK_CUR)
		1014	const_eio (SEEK_END)
		1015
		1016	const_eio (MCL_FUTURE)
		1017	const_eio (MCL_CURRENT)
		1018
		1019	const_eio (MS_ASYNC)
		1020	const_eio (MS_INVALIDATE)
		1021	const_eio (MS_SYNC)
		1022
		1023	const_eio (MT_MODIFY)
		1024
		1025	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		1026	const_eio (SYNC_FILE_RANGE_WRITE)
		1027	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1028
		1029	const_eio (FALLOC_FL_KEEP_SIZE)
		1030	const_eio (FALLOC_FL_PUNCH_HOLE)
		1031
		1032	const_eio (READDIR_DENTS)
		1033	const_eio (READDIR_DIRS_FIRST)
		1034	const_eio (READDIR_STAT_ORDER)
		1035	const_eio (READDIR_FOUND_UNKNOWN)
		1036
		1037	const_eio (DT_UNKNOWN)
		1038	const_eio (DT_FIFO)
		1039	const_eio (DT_CHR)
		1040	const_eio (DT_DIR)
		1041	const_eio (DT_BLK)
		1042	const_eio (DT_REG)
		1043	const_eio (DT_LNK)
		1044	const_eio (DT_SOCK)
		1045	const_eio (DT_WHT)
		1046	};
		1047
456	stash = gv_stashpv ("IO::AIO", 1);	1048	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1049	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1050	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1051	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
457		1052
458	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1053	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
459	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1054	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
460	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
461	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
462	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
463	#ifdef _WIN32
464	X_MUTEX_CHECK (wrklock);
465	X_MUTEX_CHECK (reslock);
466	X_MUTEX_CHECK (reqlock);
467	X_MUTEX_CHECK (reqwait);
468	X_MUTEX_CHECK (preadwritelock);
469	X_MUTEX_CHECK (readdirlock);
470		1055
471	X_COND_CHECK (reqwait);	1056	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
472	#else
473	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
474	#endif
475		1057
476	create_respipe ();	1058	reinit ();
477
478	if (eio_init (want_poll, done_poll) < 0)
479	croak ("IO::AIO: unable to initialise eio library");
480
481	/* atfork child called in fifo order, so before eio's handler */
482	X_THREAD_ATFORK (0, 0, atfork_child);
483	}	1059	}
484		1060
485	void	1061	void
		1062	reinit ()
		1063	PROTOTYPE:
		1064
		1065	void
486	max_poll_reqs (int nreqs)	1066	max_poll_reqs (unsigned int nreqs)
487	PROTOTYPE: $	1067	PROTOTYPE: $
488	CODE:	1068	CODE:
489	eio_set_max_poll_reqs (nreqs);	1069	eio_set_max_poll_reqs (nreqs);
490		1070
491	void	1071	void
…		…
493	PROTOTYPE: $	1073	PROTOTYPE: $
494	CODE:	1074	CODE:
495	eio_set_max_poll_time (nseconds);	1075	eio_set_max_poll_time (nseconds);
496		1076
497	void	1077	void
498	min_parallel (int nthreads)	1078	min_parallel (unsigned int nthreads)
499	PROTOTYPE: $	1079	PROTOTYPE: $
500	CODE:	1080	CODE:
501	eio_set_min_parallel (nthreads);	1081	eio_set_min_parallel (nthreads);
502		1082
503	void	1083	void
504	max_parallel (int nthreads)	1084	max_parallel (unsigned int nthreads)
505	PROTOTYPE: $	1085	PROTOTYPE: $
506	CODE:	1086	CODE:
507	eio_set_max_parallel (nthreads);	1087	eio_set_max_parallel (nthreads);
508		1088
509	void	1089	void
510	max_idle (int nthreads)	1090	max_idle (unsigned int nthreads)
511	PROTOTYPE: $	1091	PROTOTYPE: $
512	CODE:	1092	CODE:
513	eio_set_max_idle (nthreads);	1093	eio_set_max_idle (nthreads);
514		1094
515	void	1095	void
		1096	idle_timeout (unsigned int seconds)
		1097	PROTOTYPE: $
		1098	CODE:
		1099	eio_set_idle_timeout (seconds);
		1100
		1101	void
516	max_outstanding (int maxreqs)	1102	max_outstanding (unsigned int maxreqs)
517	PROTOTYPE: $	1103	PROTOTYPE: $
518	CODE:	1104	CODE:
519	max_outstanding = maxreqs;	1105	max_outstanding = maxreqs;
520		1106
521	void	1107	void
		1108	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1109	PPCODE:
		1110	{
		1111	dREQ;
		1112
		1113	req->type = EIO_WD_OPEN;
		1114	req_set_path1 (req, pathname);
		1115
		1116	REQ_SEND;
		1117	}
		1118
		1119	void
522	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1120	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
523	PROTOTYPE: $$$;$
524	PPCODE:	1121	PPCODE:
525	{	1122	{
526	dREQ;	1123	dREQ;
527		1124
528	req->type = EIO_OPEN;	1125	req->type = EIO_OPEN;
529	req->sv1 = newSVsv (pathname);	1126	req_set_path1 (req, pathname);
530	req->ptr1 = SvPVbyte_nolen (req->sv1);
531	req->int1 = flags;	1127	req->int1 = flags;
532	req->int2 = mode;	1128	req->int2 = mode;
533		1129
534	REQ_SEND;	1130	REQ_SEND;
535	}	1131	}
536		1132
537	void	1133	void
538	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1134	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
539	PROTOTYPE: $;$
540	ALIAS:	1135	ALIAS:
541	aio_fsync = EIO_FSYNC	1136	aio_fsync = EIO_FSYNC
542	aio_fdatasync = EIO_FDATASYNC	1137	aio_fdatasync = EIO_FDATASYNC
		1138	aio_syncfs = EIO_SYNCFS
543	PPCODE:	1139	PPCODE:
544	{	1140	{
		1141	int fd = s_fileno_croak (fh, 0);
545	dREQ;	1142	dREQ;
546		1143
547	req->type = ix;	1144	req->type = ix;
548	req->sv1 = newSVsv (fh);	1145	req->sv1 = newSVsv (fh);
549	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1146	req->int1 = fd;
550		1147
551	REQ_SEND (req);	1148	REQ_SEND;
		1149	}
		1150
		1151	void
		1152	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		1153	PPCODE:
		1154	{
		1155	int fd = s_fileno_croak (fh, 0);
		1156	dREQ;
		1157
		1158	req->type = EIO_SYNC_FILE_RANGE;
		1159	req->sv1 = newSVsv (fh);
		1160	req->int1 = fd;
		1161	req->offs = offset;
		1162	req->size = nbytes;
		1163	req->int2 = flags;
		1164
		1165	REQ_SEND;
		1166	}
		1167
		1168	void
		1169	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1170	PPCODE:
		1171	{
		1172	int fd = s_fileno_croak (fh, 0);
		1173	dREQ;
		1174
		1175	req->type = EIO_FALLOCATE;
		1176	req->sv1 = newSVsv (fh);
		1177	req->int1 = fd;
		1178	req->int2 = mode;
		1179	req->offs = offset;
		1180	req->size = len;
		1181
		1182	REQ_SEND;
552	}	1183	}
553		1184
554	void	1185	void
555	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1186	aio_close (SV *fh, SV *callback=&PL_sv_undef)
556	PROTOTYPE: $;$
557	PPCODE:	1187	PPCODE:
558	{	1188	{
559	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1189	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1190	int fd = s_fileno_croak (fh, 0);
560	dREQ;	1191	dREQ;
561		1192
562	if (close_pipe < 0)	1193	if (expect_false (close_fd < 0))
563	{	1194	{
564	int pipefd [2];	1195	int pipefd [2];
565		1196
		1197	if (
		1198	#ifdef _WIN32
		1199	_pipe (pipefd, 1, _O_BINARY) < 0
		1200	#else
566	if (pipe (pipefd) < 0	1201	pipe (pipefd) < 0
567	|| close (pipefd [1]) < 0
568	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1202	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1203	#endif
		1204	|| close (pipefd [1]) < 0
		1205	)
569	abort (); /*D*/	1206	abort (); /*D*/
570		1207
571	close_pipe = pipefd [0];	1208	close_fd = pipefd [0];
572	}	1209	}
573		1210
574	req->type = EIO_DUP2;	1211	req->type = EIO_DUP2;
575	req->int1 = close_pipe;	1212	req->int1 = close_fd;
576	req->sv2 = newSVsv (fh);	1213	req->sv2 = newSVsv (fh);
577	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1214	req->int2 = fd;
578		1215
579	REQ_SEND (req);	1216	REQ_SEND;
		1217	}
		1218
		1219	void
		1220	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1221	PPCODE:
		1222	{
		1223	int fd = s_fileno_croak (fh, 0);
		1224	dREQ;
		1225
		1226	req->type = EIO_SEEK;
		1227	req->sv1 = newSVsv (fh);
		1228	req->int1 = fd;
		1229	req->offs = SvVAL64 (offset);
		1230	req->int2 = whence;
		1231
		1232	REQ_SEND;
580	}	1233	}
581		1234
582	void	1235	void
583	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1236	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
584	ALIAS:	1237	ALIAS:
585	aio_read = EIO_READ	1238	aio_read = EIO_READ
586	aio_write = EIO_WRITE	1239	aio_write = EIO_WRITE
587	PROTOTYPE: $$$$$;$
588	PPCODE:	1240	PPCODE:
589	{	1241	{
590	STRLEN svlen;	1242	STRLEN svlen;
		1243	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
591	char *svptr = SvPVbyte (data, svlen);	1244	char *svptr = SvPVbyte (data, svlen);
592	UV len = SvUV (length);	1245	UV len = SvUV (length);
593
594	SvUPGRADE (data, SVt_PV);
595	SvPOK_on (data);
596		1246
597	if (dataoffset < 0)	1247	if (dataoffset < 0)
598	dataoffset += svlen;	1248	dataoffset += svlen;
599		1249
600	if (dataoffset < 0 || dataoffset > svlen)	1250	if (dataoffset < 0 || dataoffset > svlen)
…		…
606	if (!SvOK (length) || len + dataoffset > svlen)	1256	if (!SvOK (length) || len + dataoffset > svlen)
607	len = svlen - dataoffset;	1257	len = svlen - dataoffset;
608	}	1258	}
609	else	1259	else
610	{	1260	{
611	/* read: grow scalar as necessary */	1261	/* read: check type and grow scalar as necessary */
		1262	SvUPGRADE (data, SVt_PV);
		1263	if (SvLEN (data) >= SvCUR (data))
612	svptr = SvGROW (data, len + dataoffset + 1);	1264	svptr = SvGROW (data, len + dataoffset + 1);
		1265	else if (SvCUR (data) < len + dataoffset)
		1266	croak ("length + dataoffset outside of scalar, and cannot grow");
613	}	1267	}
614
615	if (len < 0)
616	croak ("length must not be negative");
617		1268
618	{	1269	{
619	dREQ;	1270	dREQ;
620		1271
621	req->type = ix;	1272	req->type = ix;
622	req->sv1 = newSVsv (fh);	1273	req->sv1 = newSVsv (fh);
623	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1274	req->int1 = fd;
624	: IoOFP (sv_2io (fh)));
625	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1275	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
626	req->size = len;	1276	req->size = len;
627	req->sv2 = SvREFCNT_inc (data);	1277	req->sv2 = SvREFCNT_inc (data);
628	req->ptr2 = (char *)svptr + dataoffset;	1278	req->ptr2 = (char *)svptr + dataoffset;
629	req->stroffset = dataoffset;	1279	req->stroffset = dataoffset;
…		…
637	REQ_SEND;	1287	REQ_SEND;
638	}	1288	}
639	}	1289	}
640		1290
641	void	1291	void
642	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1292	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
643	PROTOTYPE: $$;$	1293	ALIAS:
		1294	aio_readlink = EIO_READLINK
		1295	aio_realpath = EIO_REALPATH
644	PPCODE:	1296	PPCODE:
645	{	1297	{
646	SV *data;
647	dREQ;	1298	dREQ;
648		1299
649	data = newSV (NAME_MAX);
650	SvPOK_on (data);
651
652	req->type = EIO_READLINK;	1300	req->type = ix;
653	req->sv1 = newSVsv (path);	1301	req_set_path1 (req, pathname);
654	req->ptr1 = SvPVbyte_nolen (req->sv1);
655	req->sv2 = data;
656	req->ptr2 = SvPVbyte_nolen (data);
657		1302
658	REQ_SEND;	1303	REQ_SEND;
659	}	1304	}
660		1305
661	void	1306	void
662	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1307	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
663	PROTOTYPE: $$$$;$
664	PPCODE:	1308	PPCODE:
665	{	1309	{
		1310	int ifd = s_fileno_croak (in_fh , 0);
		1311	int ofd = s_fileno_croak (out_fh, 1);
666	dREQ;	1312	dREQ;
667		1313
668	req->type = EIO_SENDFILE;	1314	req->type = EIO_SENDFILE;
669	req->sv1 = newSVsv (out_fh);	1315	req->sv1 = newSVsv (out_fh);
670	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1316	req->int1 = ofd;
671	req->sv2 = newSVsv (in_fh);	1317	req->sv2 = newSVsv (in_fh);
672	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1318	req->int2 = ifd;
673	req->offs = SvVAL64 (in_offset);	1319	req->offs = in_offset;
674	req->size = length;	1320	req->size = length;
675		1321
676	REQ_SEND;	1322	REQ_SEND;
677	}	1323	}
678		1324
679	void	1325	void
680	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1326	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
681	PROTOTYPE: $$$;$
682	PPCODE:	1327	PPCODE:
683	{	1328	{
		1329	int fd = s_fileno_croak (fh, 0);
684	dREQ;	1330	dREQ;
685		1331
686	req->type = EIO_READAHEAD;	1332	req->type = EIO_READAHEAD;
687	req->sv1 = newSVsv (fh);	1333	req->sv1 = newSVsv (fh);
688	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1334	req->int1 = fd;
689	req->offs = SvVAL64 (offset);	1335	req->offs = offset;
690	req->size = length;	1336	req->size = length;
691		1337
692	REQ_SEND;	1338	REQ_SEND;
693	}	1339	}
694		1340
695	void	1341	void
696	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1342	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
697	ALIAS:	1343	ALIAS:
698	aio_stat = EIO_STAT	1344	aio_stat = EIO_STAT
699	aio_lstat = EIO_LSTAT	1345	aio_lstat = EIO_LSTAT
		1346	aio_statvfs = EIO_STATVFS
700	PPCODE:	1347	PPCODE:
701	{	1348	{
702	dREQ;	1349	dREQ;
703		1350
704	req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));	1351	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
705	if (!req->ptr2)
706	{
707	req_destroy (req);
708	croak ("out of memory during aio_stat statdata allocation");
709	}
710
711	req->flags |= EIO_FLAG_PTR2_FREE;
712	req->sv1 = newSVsv (fh_or_path);
713
714	if (SvPOK (fh_or_path))
715	{
716	req->type = ix;
717	req->ptr1 = SvPVbyte_nolen (req->sv1);
718	}
719	else
720	{
721	req->type = EIO_FSTAT;
722	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
723	}
724		1352
725	REQ_SEND;	1353	REQ_SEND;
726	}	1354	}
		1355
		1356	UV
		1357	major (UV dev)
		1358	ALIAS:
		1359	minor = 1
		1360	CODE:
		1361	RETVAL = ix ? major (dev) : minor (dev);
		1362	OUTPUT:
		1363	RETVAL
		1364
		1365	UV
		1366	makedev (UV maj, UV min)
		1367	CODE:
		1368	RETVAL = makedev (maj, min);
		1369	OUTPUT:
		1370	RETVAL
727		1371
728	void	1372	void
729	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1373	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
730	PPCODE:	1374	PPCODE:
731	{	1375	{
732	dREQ;	1376	dREQ;
733		1377
734	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1378	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
735	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1379	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
736	req->sv1 = newSVsv (fh_or_path);	1380	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
737
738	if (SvPOK (fh_or_path))
739	{
740	req->type = EIO_UTIME;
741	req->ptr1 = SvPVbyte_nolen (req->sv1);
742	}
743	else
744	{
745	req->type = EIO_FUTIME;
746	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
747	}
748		1381
749	REQ_SEND;	1382	REQ_SEND;
750	}	1383	}
751		1384
752	void	1385	void
753	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1386	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
754	PPCODE:	1387	PPCODE:
755	{	1388	{
756	dREQ;	1389	dREQ;
757		1390
758	req->sv1 = newSVsv (fh_or_path);
759	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1391	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
760		1392	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
761	if (SvPOK (fh_or_path))
762	{
763	req->type = EIO_TRUNCATE;
764	req->ptr1 = SvPVbyte_nolen (req->sv1);
765	}
766	else
767	{
768	req->type = EIO_FTRUNCATE;
769	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
770	}
771		1393
772	REQ_SEND;	1394	REQ_SEND;
773	}	1395	}
774		1396
775	void	1397	void
776	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1398	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
777	ALIAS:
778	aio_chmod = EIO_CHMOD
779	aio_fchmod = EIO_FCHMOD
780	aio_mkdir = EIO_MKDIR
781	PPCODE:	1399	PPCODE:
782	{	1400	{
783	dREQ;	1401	dREQ;
784		1402
785	req->type = ix;
786	req->int2 = mode;	1403	req->int2 = mode;
787	req->sv1 = newSVsv (fh_or_path);	1404	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
788
789	if (ix == EIO_FCHMOD)
790	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
791	else
792	req->ptr1 = SvPVbyte_nolen (req->sv1);
793		1405
794	REQ_SEND;	1406	REQ_SEND;
795	}	1407	}
796		1408
797	void	1409	void
…		…
800	{	1412	{
801	dREQ;	1413	dREQ;
802		1414
803	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1415	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
804	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1416	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
805	req->sv1 = newSVsv (fh_or_path);	1417	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
806		1418
807	if (SvPOK (fh_or_path))	1419	REQ_SEND;
808	{	1420	}
		1421
		1422	void
		1423	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1424	PPCODE:
		1425	{
		1426	dREQ;
		1427
		1428	req->type = EIO_READDIR;
		1429	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1430
		1431	if (flags & EIO_READDIR_DENTS)
		1432	req->int1 |= EIO_READDIR_CUSTOM2;
		1433
		1434	req_set_path1 (req, pathname);
		1435
		1436	REQ_SEND;
		1437	}
		1438
		1439	void
		1440	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1441	PPCODE:
		1442	{
		1443	dREQ;
		1444
809	req->type = EIO_CHOWN;	1445	req->type = EIO_MKDIR;
810	req->ptr1 = SvPVbyte_nolen (req->sv1);	1446	req->int2 = mode;
811	}	1447	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		1448
818	REQ_SEND;	1449	REQ_SEND;
819	}	1450	}
820		1451
821	void	1452	void
…		…
827	PPCODE:	1458	PPCODE:
828	{	1459	{
829	dREQ;	1460	dREQ;
830		1461
831	req->type = ix;	1462	req->type = ix;
832	req->sv1 = newSVsv (pathname);	1463	req_set_path1 (req, pathname);
833	req->ptr1 = SvPVbyte_nolen (req->sv1);
834		1464
835	REQ_SEND;	1465	REQ_SEND;
836	}	1466	}
837		1467
838	void	1468	void
…		…
841	aio_link = EIO_LINK	1471	aio_link = EIO_LINK
842	aio_symlink = EIO_SYMLINK	1472	aio_symlink = EIO_SYMLINK
843	aio_rename = EIO_RENAME	1473	aio_rename = EIO_RENAME
844	PPCODE:	1474	PPCODE:
845	{	1475	{
		1476	eio_wd wd2 = 0;
846	dREQ;	1477	dREQ;
847		1478
848	req->type = ix;	1479	req->type = ix;
849	req->sv1 = newSVsv (oldpath);	1480	req_set_path1 (req, oldpath);
850	req->ptr1 = SvPVbyte_nolen (req->sv1);	1481	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
851	req->sv2 = newSVsv (newpath);	1482	req->int3 = (long)wd2;
852	req->ptr2 = SvPVbyte_nolen (req->sv2);
853		1483
854	REQ_SEND;	1484	REQ_SEND;
855	}	1485	}
856		1486
857	void	1487	void
…		…
859	PPCODE:	1489	PPCODE:
860	{	1490	{
861	dREQ;	1491	dREQ;
862		1492
863	req->type = EIO_MKNOD;	1493	req->type = EIO_MKNOD;
864	req->sv1 = newSVsv (pathname);
865	req->ptr1 = SvPVbyte_nolen (req->sv1);
866	req->int2 = (mode_t)mode;	1494	req->int2 = (mode_t)mode;
867	req->offs = dev;	1495	req->offs = dev;
		1496	req_set_path1 (req, pathname);
868		1497
869	REQ_SEND;	1498	REQ_SEND;
870	}	1499	}
871		1500
872	void	1501	void
		1502	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1503	ALIAS:
		1504	aio_mtouch = EIO_MTOUCH
		1505	aio_msync = EIO_MSYNC
		1506	PPCODE:
		1507	{
		1508	STRLEN svlen;
		1509	char *svptr = SvPVbyte (data, svlen);
		1510	UV len = SvUV (length);
		1511
		1512	if (offset < 0)
		1513	offset += svlen;
		1514
		1515	if (offset < 0 || offset > svlen)
		1516	croak ("offset outside of scalar");
		1517
		1518	if (!SvOK (length) || len + offset > svlen)
		1519	len = svlen - offset;
		1520
		1521	{
		1522	dREQ;
		1523
		1524	req->type = ix;
		1525	req->sv2 = SvREFCNT_inc (data);
		1526	req->ptr2 = (char *)svptr + offset;
		1527	req->size = len;
		1528	req->int1 = flags;
		1529
		1530	REQ_SEND;
		1531	}
		1532	}
		1533
		1534	void
		1535	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1536	PPCODE:
		1537	{
		1538	STRLEN svlen;
		1539	char *svptr = SvPVbyte (data, svlen);
		1540	UV len = SvUV (length);
		1541
		1542	if (offset < 0)
		1543	offset += svlen;
		1544
		1545	if (offset < 0 || offset > svlen)
		1546	croak ("offset outside of scalar");
		1547
		1548	if (!SvOK (length) || len + offset > svlen)
		1549	len = svlen - offset;
		1550
		1551	{
		1552	dREQ;
		1553
		1554	req->type = EIO_MLOCK;
		1555	req->sv2 = SvREFCNT_inc (data);
		1556	req->ptr2 = (char *)svptr + offset;
		1557	req->size = len;
		1558
		1559	REQ_SEND;
		1560	}
		1561	}
		1562
		1563	void
		1564	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1565	PPCODE:
		1566	{
		1567	dREQ;
		1568
		1569	req->type = EIO_MLOCKALL;
		1570	req->int1 = flags;
		1571
		1572	REQ_SEND;
		1573	}
		1574
		1575	void
		1576	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1577	PPCODE:
		1578	{
		1579	int fd = s_fileno_croak (fh, 0);
		1580	dREQ;
		1581
		1582	req->type = EIO_CUSTOM;
		1583	req->sv1 = newSVsv (fh);
		1584	req->int1 = fd;
		1585
		1586	req->feed = fiemap;
		1587	#if HAVE_FIEMAP
		1588	/* keep our fingers crossed that the next two types are 64 bit */
		1589	req->offs = start;
		1590	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1591	req->int2 = flags;
		1592	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1593	#endif
		1594
		1595	REQ_SEND;
		1596	}
		1597
		1598	void
873	aio_busy (double delay, SV *callback=&PL_sv_undef)	1599	aio_busy (double delay, SV *callback=&PL_sv_undef)
874	PPCODE:	1600	PPCODE:
875	{	1601	{
876	dREQ;	1602	dREQ;
877		1603
…		…
881	REQ_SEND;	1607	REQ_SEND;
882	}	1608	}
883		1609
884	void	1610	void
885	aio_group (SV *callback=&PL_sv_undef)	1611	aio_group (SV *callback=&PL_sv_undef)
886	PROTOTYPE: ;$
887	PPCODE:	1612	PPCODE:
888	{	1613	{
889	dREQ;	1614	dREQ;
890		1615
891	req->type = EIO_GROUP;	1616	req->type = EIO_GROUP;
892		1617
893	eio_submit (req);	1618	req_submit (req);
894	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1619	XPUSHs (req_sv (req, aio_grp_stash));
895	}	1620	}
896		1621
897	void	1622	void
898	aio_nop (SV *callback=&PL_sv_undef)	1623	aio_nop (SV *callback=&PL_sv_undef)
899	ALIAS:	1624	ALIAS:
…		…
908	REQ_SEND;	1633	REQ_SEND;
909	}	1634	}
910		1635
911	int	1636	int
912	aioreq_pri (int pri = 0)	1637	aioreq_pri (int pri = 0)
913	PROTOTYPE: ;$
914	CODE:	1638	CODE:
915	RETVAL = next_pri - EIO_PRI_BIAS;	1639	RETVAL = next_pri;
916	if (items > 0)	1640	if (items > 0)
917	{	1641	{
918	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1642	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
919	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1643	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
920	next_pri = pri + EIO_PRI_BIAS;	1644	next_pri = pri;
921	}	1645	}
922	OUTPUT:	1646	OUTPUT:
923	RETVAL	1647	RETVAL
924		1648
925	void	1649	void
926	aioreq_nice (int nice = 0)	1650	aioreq_nice (int nice = 0)
927	CODE:	1651	CODE:
928	nice = next_pri - nice;	1652	nice = next_pri - nice;
929	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1653	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
930	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1654	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
931	next_pri = nice + EIO_PRI_BIAS;	1655	next_pri = nice;
932		1656
933	void	1657	void
934	flush ()	1658	flush ()
935	PROTOTYPE:
936	CODE:	1659	CODE:
937	while (eio_nreqs ())	1660	while (eio_nreqs ())
938	{	1661	{
939	poll_wait ();	1662	poll_wait ();
940	poll_cb ();	1663	poll_cb ();
941	}	1664	}
942		1665
943	int	1666	int
944	poll()	1667	poll ()
945	PROTOTYPE:
946	CODE:	1668	CODE:
947	poll_wait ();	1669	poll_wait ();
948	RETVAL = poll_cb ();	1670	RETVAL = poll_cb ();
949	OUTPUT:	1671	OUTPUT:
950	RETVAL	1672	RETVAL
951		1673
952	int	1674	int
953	poll_fileno()	1675	poll_fileno ()
954	PROTOTYPE:
955	CODE:	1676	CODE:
956	RETVAL = respipe [0];	1677	RETVAL = s_epipe_fd (&respipe);
957	OUTPUT:	1678	OUTPUT:
958	RETVAL	1679	RETVAL
959		1680
960	int	1681	int
961	poll_cb(...)	1682	poll_cb (...)
962	PROTOTYPE:	1683	PROTOTYPE:
963	CODE:	1684	CODE:
964	RETVAL = poll_cb ();	1685	RETVAL = poll_cb ();
965	OUTPUT:	1686	OUTPUT:
966	RETVAL	1687	RETVAL
967		1688
968	void	1689	void
969	poll_wait()	1690	poll_wait ()
970	PROTOTYPE:
971	CODE:	1691	CODE:
972	poll_wait ();	1692	poll_wait ();
973		1693
974	int	1694	int
975	nreqs()	1695	nreqs ()
976	PROTOTYPE:
977	CODE:	1696	CODE:
978	RETVAL = eio_nreqs ();	1697	RETVAL = eio_nreqs ();
979	OUTPUT:	1698	OUTPUT:
980	RETVAL	1699	RETVAL
981		1700
982	int	1701	int
983	nready()	1702	nready ()
984	PROTOTYPE:
985	CODE:	1703	CODE:
986	RETVAL = eio_nready ();	1704	RETVAL = eio_nready ();
987	OUTPUT:	1705	OUTPUT:
988	RETVAL	1706	RETVAL
989		1707
990	int	1708	int
991	npending()	1709	npending ()
992	PROTOTYPE:
993	CODE:	1710	CODE:
994	RETVAL = eio_npending ();	1711	RETVAL = eio_npending ();
995	OUTPUT:	1712	OUTPUT:
996	RETVAL	1713	RETVAL
997		1714
998	int	1715	int
999	nthreads()	1716	nthreads ()
1000	PROTOTYPE:
1001	CODE:	1717	CODE:
1002	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1718	RETVAL = eio_nthreads ();
1003	RETVAL = started;
1004	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1005	OUTPUT:	1719	OUTPUT:
1006	RETVAL	1720	RETVAL
1007		1721
		1722	int
		1723	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1724	CODE:
		1725	RETVAL = posix_fadvise (fh, offset, length, advice);
		1726	OUTPUT:
		1727	RETVAL
		1728
		1729	IV
		1730	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1731	CODE:
		1732	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1733	OUTPUT:
		1734	RETVAL
		1735
		1736	void
		1737	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1738	PPCODE:
		1739	sv_unmagic (scalar, MMAP_MAGIC);
		1740	{
		1741	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1742	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1743	if (addr == (void *)-1)
		1744	XSRETURN_NO;
		1745
		1746	sv_force_normal (scalar);
		1747
		1748	/* we store the length in mg_obj, as namlen is I32 :/ */
		1749	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1750	->mg_obj = (SV *)length;
		1751
		1752	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1753
		1754	if (!(prot & PROT_WRITE))
		1755	SvREADONLY_on (scalar);
		1756
		1757	if (SvLEN (scalar))
		1758	Safefree (SvPVX (scalar));
		1759
		1760	SvPVX (scalar) = (char *)addr;
		1761	SvCUR_set (scalar, length);
		1762	SvLEN_set (scalar, 0);
		1763	SvPOK_only (scalar);
		1764
		1765	XSRETURN_YES;
		1766	}
		1767
		1768	void
		1769	munmap (SV *scalar)
		1770	CODE:
		1771	sv_unmagic (scalar, MMAP_MAGIC);
		1772
		1773	int
		1774	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1775	ALIAS:
		1776	mprotect = 1
		1777	CODE:
		1778	{
		1779	STRLEN svlen;
		1780	void *addr = SvPVbyte (scalar, svlen);
		1781	size_t len = SvUV (length);
		1782
		1783	if (offset < 0)
		1784	offset += svlen;
		1785
		1786	if (offset < 0 || offset > svlen)
		1787	croak ("offset outside of scalar");
		1788
		1789	if (!SvOK (length) || len + offset > svlen)
		1790	len = svlen - offset;
		1791
		1792	addr = (void *)(((intptr_t)addr) + offset);
		1793	eio_page_align (&addr, &len);
		1794
		1795	switch (ix)
		1796	{
		1797	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1798	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1799	}
		1800	}
		1801	OUTPUT:
		1802	RETVAL
		1803
		1804	int
		1805	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1806	CODE:
		1807	{
		1808	STRLEN svlen;
		1809	void *addr = SvPVbyte (scalar, svlen);
		1810	size_t len = SvUV (length);
		1811
		1812	if (offset < 0)
		1813	offset += svlen;
		1814
		1815	if (offset < 0 || offset > svlen)
		1816	croak ("offset outside of scalar");
		1817
		1818	if (!SvOK (length) || len + offset > svlen)
		1819	len = svlen - offset;
		1820
		1821	addr = (void *)(((intptr_t)addr) + offset);
		1822	eio_page_align (&addr, &len);
		1823	#if _POSIX_MEMLOCK_RANGE
		1824	RETVAL = munlock (addr, len);
		1825	#else
		1826	RETVAL = EIO_ENOSYS ();
		1827	#endif
		1828	}
		1829	OUTPUT:
		1830	RETVAL
		1831
		1832	int
		1833	munlockall ()
		1834	CODE:
		1835	#if _POSIX_MEMLOCK
		1836	munlockall ();
		1837	#else
		1838	RETVAL = EIO_ENOSYS ();
		1839	#endif
		1840	OUTPUT:
		1841	RETVAL
		1842
		1843	int
		1844	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1845	CODE:
		1846	{
		1847	#if HAVE_LINUX_SPLICE
		1848	loff_t off_in_, off_out_;
		1849	RETVAL = splice (
		1850	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1851	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1852	length, flags
		1853	);
		1854	#else
		1855	RETVAL = EIO_ENOSYS ();
		1856	#endif
		1857	}
		1858	OUTPUT:
		1859	RETVAL
		1860
		1861	int
		1862	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1863	CODE:
		1864	#if HAVE_LINUX_SPLICE
		1865	RETVAL = tee (rfh, wfh, length, flags);
		1866	#else
		1867	RETVAL = EIO_ENOSYS ();
		1868	#endif
		1869	OUTPUT:
		1870	RETVAL
		1871
		1872	void _on_next_submit (SV *cb)
		1873	CODE:
		1874	SvREFCNT_dec (on_next_submit);
		1875	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		1876
1008	PROTOTYPES: DISABLE	1877	PROTOTYPES: DISABLE
		1878
		1879	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1880
		1881	BOOT:
		1882	{
		1883	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1884	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1885	}
		1886
		1887	void
		1888	DESTROY (SV *self)
		1889	CODE:
		1890	{
		1891	aio_wd wd = SvAIO_WD (self);
		1892	#if HAVE_AT
		1893	{
		1894	SV *callback = &PL_sv_undef;
		1895	dREQ; /* clobbers next_pri :/ */
		1896	next_pri = req->pri; /* restore next_pri */
		1897	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1898	req->type = EIO_WD_CLOSE;
		1899	req->wd = wd;
		1900	REQ_SEND;
		1901	}
		1902	#else
		1903	eio_wd_close_sync (wd);
		1904	#endif
		1905	}
1009		1906
1010	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1907	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1011		1908
1012	void	1909	void
1013	cancel (aio_req_ornot req)	1910	cancel (aio_req_ornot req)
1014	CODE:	1911	CODE:
1015	eio_cancel (req);	1912	eio_cancel (req);
1016		1913
1017	void	1914	void
1018	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1915	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1019	CODE:	1916	PPCODE:
		1917	{
		1918	if (GIMME_V != G_VOID)
		1919	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1920
		1921	if (items > 1)
		1922	{
		1923	SV *cb_cv =get_cb (callback);
		1924
1020	SvREFCNT_dec (req->callback);	1925	SvREFCNT_dec (req->callback);
1021	req->callback = newSVsv (callback);	1926	req->callback = SvREFCNT_inc (cb_cv);
		1927	}
		1928	}
1022		1929
1023	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1930	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1024		1931
1025	void	1932	void
1026	add (aio_req grp, ...)	1933	add (aio_req grp, ...)
…		…
1058	AV *av;	1965	AV *av;
1059		1966
1060	grp->errorno = errno;	1967	grp->errorno = errno;
1061		1968
1062	av = newAV ();	1969	av = newAV ();
		1970	av_extend (av, items - 1);
1063		1971
1064	for (i = 1; i < items; ++i )	1972	for (i = 1; i < items; ++i )
1065	av_push (av, newSVsv (ST (i)));	1973	av_push (av, newSVsv (ST (i)));
1066		1974
1067	SvREFCNT_dec (grp->sv1);	1975	SvREFCNT_dec (grp->sv1);
…		…
1081	void	1989	void
1082	feed (aio_req grp, SV *callback=&PL_sv_undef)	1990	feed (aio_req grp, SV *callback=&PL_sv_undef)
1083	CODE:	1991	CODE:
1084	{	1992	{
1085	SvREFCNT_dec (grp->sv2);	1993	SvREFCNT_dec (grp->sv2);
1086	grp->sv2 = newSVsv (callback);	1994	grp->sv2 = newSVsv (callback);
		1995	grp->feed = aio_grp_feed;
1087		1996
1088	if (grp->int2 <= 0)	1997	if (grp->int2 <= 0)
1089	grp->int2 = 2;	1998	grp->int2 = 2;
1090		1999
1091	eio_grp_limit (grp, grp->int2);	2000	eio_grp_limit (grp, grp->int2);

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