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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.120 by root, Sun May 11 19:17:09 2008 UTC vs.
Revision 1.228 by root, Fri Jan 24 23:46:16 2014 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
		8
		9	#include "schmorp.h"
8		10
9	#include <stddef.h>	11	#include <stddef.h>
10	#include <stdlib.h>	12	#include <stdlib.h>
11	#include <errno.h>	13	#include <errno.h>
12	#include <sys/types.h>	14	#include <sys/types.h>
13	#include <sys/stat.h>	15	#include <sys/stat.h>
14	#include <limits.h>	16	#include <limits.h>
15	#include <fcntl.h>	17	#include <fcntl.h>
16	#include <sched.h>	18	#include <sched.h>
17		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
		24	#if __linux__
		25	# include <linux/fs.h>
		26	# ifdef FS_IOC_FIEMAP
		27	# include <linux/types.h>
		28	# include <linux/fiemap.h>
		29	# define HAVE_FIEMAP 1
		30	# endif
		31	#endif
		32
18	/* perl namespace pollution */	33	/* perl namespace pollution */
19	#undef VERSION	34	#undef VERSION
20		35
		36	/* perl stupidly overrides readdir and maybe others */
		37	/* with thread-unsafe versions, imagine that :( */
		38	#undef readdir
		39	#undef opendir
		40	#undef closedir
		41
21	#ifdef _WIN32	42	#ifdef _WIN32
22		43
23	# define EIO_STRUCT_DIRENT Direntry_t
24	# undef malloc
25	# undef free
26
27	// perl overrides all those nice win32 functions	44	// perl overrides all those nice libc functions
		45
		46	#undef malloc
		47	#undef free
28	# undef open	48	#undef open
29	# undef read	49	#undef read
30	# undef write	50	#undef write
31	# undef send	51	#undef send
32	# undef recv	52	#undef recv
33	# undef stat	53	#undef stat
		54	#undef lstat
34	# undef fstat	55	#undef fstat
35	# define lstat stat
36	# undef truncate	56	#undef truncate
37	# undef ftruncate	57	#undef ftruncate
38	# undef open	58	#undef open
		59	#undef link
39	# undef close	60	#undef close
40	# undef unlink	61	#undef unlink
		62	#undef mkdir
41	# undef rmdir	63	#undef rmdir
42	# undef rename	64	#undef rename
43	# undef lseek	65	#undef lseek
		66	#undef opendir
		67	#undef readdir
		68	#undef closedir
		69	#undef chmod
		70	#undef fchmod
		71	#undef dup
		72	#undef dup2
		73	#undef abort
		74	#undef pipe
44		75
45	# define chown(a,b,c) (errno = ENOSYS, -1)	76	#define EIO_STRUCT_STAT struct _stati64
46	# define fchown(a,b,c) (errno = ENOSYS, -1)	77	#define EIO_STRUCT_STATI64
47	# define fchmod(a,b) (errno = ENOSYS, -1)
48	# define symlink(a,b) (errno = ENOSYS, -1)
49	# define readlink(a,b,c) (errno = ENOSYS, -1)
50	# define mknod(a,b,c) (errno = ENOSYS, -1)
51	# define truncate(a,b) (errno = ENOSYS, -1)
52	# define ftruncate(fd,o) chsize ((fd), (o))
53	# define fsync(fd) _commit (fd)
54	# define opendir(fd) (errno = ENOSYS, 0)
55	# define readdir(fd) (errno = ENOSYS, -1)
56	# define closedir(fd) (errno = ENOSYS, -1)
57	# define mkdir(a,b) mkdir (a)
58		78
59	#else	79	#else
60		80
61	# include <sys/time.h>	81	#include <sys/time.h>
62	# include <sys/select.h>	82	#include <sys/select.h>
63	# include <unistd.h>	83	#include <unistd.h>
64	# include <utime.h>	84	#include <utime.h>
65	# include <signal.h>	85	#include <signal.h>
66	# define EIO_STRUCT_DIRENT struct dirent
67		86
68	#endif
69
70	#define EIO_STRUCT_STAT Stat_t	87	#define EIO_STRUCT_STAT Stat_t
71		88
72	/* use NV for 32 bit perls as it allows larger offsets */	89	#endif
73	#if IVSIZE >= 8	90
74	# define SvVAL64 SvIV	91	/*****************************************************************************/
		92
		93	#if __GNUC__ >= 3
		94	# define expect(expr,value) __builtin_expect ((expr),(value))
75	#else	95	#else
76	# define SvVAL64 SvNV	96	# define expect(expr,value) (expr)
77	#endif	97	#endif
78		98
79	static HV *stash;	99	#define expect_false(expr) expect ((expr) != 0, 0)
		100	#define expect_true(expr) expect ((expr) != 0, 1)
		101
		102	/*****************************************************************************/
		103
80	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
		105	typedef int aio_rfd; /* read file desriptor */
		106	typedef int aio_wfd; /* write file descriptor */
81		107
82	#define AIO_REQ_KLASS "IO::AIO::REQ"	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
83	#define AIO_GRP_KLASS "IO::AIO::GRP"
84		109
85	#define EIO_COMMON \	110	#define EIO_REQ_MEMBERS \
86	SV *callback; \	111	SV *callback; \
87	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
88	STRLEN stroffset; \	114	STRLEN stroffset; \
89	SV *self	115	SV *self;
90		116
		117	#define EIO_NO_WRAPPERS 1
		118
		119	#include "libeio/config.h"
91	#include "libeio/eio.h"	120	#include "libeio/eio.h"
92		121
93	static int req_invoke (eio_req *req);	122	static int req_invoke (eio_req *req);
94	#define EIO_FINISH(req) req_invoke (req)	123	#define EIO_FINISH(req) req_invoke (req)
95	static void aio_grp_feed (eio_req *grp);
96	#define EIO_FEED(req) aio_grp_feed (req)
97	static void req_destroy (eio_req *grp);	124	static void req_destroy (eio_req *grp);
98	#define EIO_DESTROY(req) req_destroy (req)	125	#define EIO_DESTROY(req) req_destroy (req)
		126
		127	#include "libeio/eio.c"
		128
		129	#if !HAVE_POSIX_FADVISE
		130	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		131	#endif
		132
		133	#if !HAVE_POSIX_MADVISE
		134	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		135	#endif
		136
		137	#ifndef MAP_ANONYMOUS
		138	# ifdef MAP_ANON
		139	# define MAP_ANONYMOUS MAP_ANON
		140	# else
		141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		142	# endif
		143	#endif
		144
		145	/* defines all sorts of constants to 0 unless they are already defined */
		146	#include "def0.h"
		147
		148	#ifndef makedev
		149	# define makedev(maj,min) (((maj) << 8) | (min))
		150	#endif
		151	#ifndef major
		152	# define major(dev) ((dev) >> 8)
		153	#endif
		154	#ifndef minor
		155	# define minor(dev) ((dev) & 0xff)
		156	#endif
		157
		158	#if PAGESIZE <= 0
		159	# define PAGESIZE sysconf (_SC_PAGESIZE)
		160	#endif
		161
		162	/*****************************************************************************/
		163
		164	static void
		165	fiemap (eio_req *req)
		166	{
		167	req->result = -1;
		168
		169	#if HAVE_FIEMAP
		170	/* assume some c99 */
		171	struct fiemap *fiemap = 0;
		172	size_t end_offset;
		173	int count = req->int3;
		174
		175	req->flags |= EIO_FLAG_PTR1_FREE;
		176
		177	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		178	/* increase in 3.5kb steps */
		179	if (count < 0)
		180	count = 8;
		181
		182	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		183	errno = ENOMEM;
		184	if (!fiemap)
		185	return;
		186
		187	req->ptr1 = fiemap;
		188
		189	fiemap->fm_start = req->offs;
		190	fiemap->fm_length = req->size;
		191	fiemap->fm_flags = req->int2;
		192	fiemap->fm_extent_count = count;
		193
		194	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		195	return;
		196
		197	if (req->int3 >= 0 /* not autosizing */
		198	|| !fiemap->fm_mapped_extents /* no more extents */
		199	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		200	goto done;
		201
		202	/* else we have to loop -
		203	* it would be tempting (actually 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	if (!incmap->fm_mapped_extents)
		227	goto done;
		228
		229	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		230	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		231	errno = ENOMEM;
		232	if (!fiemap)
		233	return;
		234
		235	req->ptr1 = fiemap;
		236
		237	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		238	{
		239	struct fiemap_extent *e = incmap->fm_extents + count;
		240
		241	if (e->fe_logical + e->fe_length >= end_offset)
		242	goto done;
		243
		244	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		245
		246	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		247	goto done;
		248
		249	}
		250	}
		251
		252	done:
		253	req->result = 0;
		254
		255	#else
		256	errno = ENOSYS;
		257	#endif
		258	}
		259
		260	/*****************************************************************************/
99		261
100	enum {	262	enum {
101	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	263	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
102	};	264	};
103		265
104	#include "libeio/eio.c"
105
106	typedef eio_req *aio_req;	266	typedef eio_req *aio_req;
107	typedef eio_req *aio_req_ornot;	267	typedef eio_req *aio_req_ornot;
		268	typedef eio_wd aio_wd;
108		269
109	static SV *on_next_submit;	270	static SV *on_next_submit;
110	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	271	static int next_pri = EIO_PRI_DEFAULT;
111	static int max_outstanding;	272	static int max_outstanding;
112		273
113	static int respipe_osf [2], respipe [2] = { -1, -1 };	274	static s_epipe respipe;
114		275
115	static void req_destroy (aio_req req);	276	static void req_destroy (aio_req req);
116	static void req_cancel (aio_req req);	277	static void req_cancel (aio_req req);
117		278
118	static void want_poll (void)	279	static void
		280	want_poll (void)
119	{	281	{
120	/* write a dummy byte to the pipe so fh becomes ready */	282	/* write a dummy byte to the pipe so fh becomes ready */
121	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	283	s_epipe_signal (&respipe);
122	}	284	}
123		285
124	static void done_poll (void)	286	static void
		287	done_poll (void)
125	{	288	{
126	/* read any signals sent by the worker threads */	289	/* read any signals sent by the worker threads */
127	char buf [4];	290	s_epipe_drain (&respipe);
128	while (respipe_read (respipe [0], buf, 4) == 4)
129	;
130	}	291	}
131		292
132	/* must be called at most once */	293	/* must be called at most once */
133	static SV *req_sv (aio_req req, const char *klass)	294	static SV *
		295	req_sv (aio_req req, HV *stash)
134	{	296	{
135	if (!req->self)	297	if (!req->self)
136	{	298	{
137	req->self = (SV *)newHV ();	299	req->self = (SV *)newHV ();
138	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	300	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
139	}	301	}
140		302
141	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	303	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
142	}	304	}
143		305
144	static aio_req SvAIO_REQ (SV *sv)	306	static SV *
		307	newSVaio_wd (aio_wd wd)
		308	{
		309	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		310	}
		311
		312	static aio_req
		313	SvAIO_REQ (SV *sv)
145	{	314	{
146	MAGIC *mg;	315	MAGIC *mg;
147		316
148	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	317	if (!SvROK (sv)
		318	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		319	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		320	&& SvSTASH (SvRV (sv)) != aio_req_stash
		321	&& !sv_derived_from (sv, "IO::AIO::REQ")))
149	croak ("object of class " AIO_REQ_KLASS " expected");	322	croak ("object of class IO::AIO::REQ expected");
150		323
151	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	324	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
152		325
153	return mg ? (aio_req)mg->mg_ptr : 0;	326	return mg ? (aio_req)mg->mg_ptr : 0;
154	}	327	}
155		328
		329	static aio_wd
		330	SvAIO_WD (SV *sv)
		331	{
		332	if (!SvROK (sv)
		333	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		334	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		335	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		336
		337	return (aio_wd)(long)SvIVX (SvRV (sv));
		338	}
		339
		340	static void
156	static void aio_grp_feed (aio_req grp)	341	aio_grp_feed (aio_req grp)
157	{	342	{
158	if (grp->sv2 && SvOK (grp->sv2))	343	if (grp->sv2 && SvOK (grp->sv2))
159	{	344	{
160	dSP;	345	dSP;
161		346
162	ENTER;	347	ENTER;
163	SAVETMPS;	348	SAVETMPS;
164	PUSHMARK (SP);	349	PUSHMARK (SP);
165	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	350	XPUSHs (req_sv (grp, aio_grp_stash));
166	PUTBACK;	351	PUTBACK;
167	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	352	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
168	SPAGAIN;	353	SPAGAIN;
169	FREETMPS;	354	FREETMPS;
170	LEAVE;	355	LEAVE;
171	}	356	}
172	}	357	}
173		358
		359	static void
174	static void req_submit (eio_req *req)	360	req_submit (eio_req *req)
175	{	361	{
176	eio_submit (req);	362	eio_submit (req);
177		363
178	if (on_next_submit)	364	if (expect_false (on_next_submit))
179	{	365	{
180	dSP;	366	dSP;
181	SV *cb = sv_2mortal (on_next_submit);	367	SV *cb = sv_2mortal (on_next_submit);
182		368
183	on_next_submit = 0;	369	on_next_submit = 0;
…		…
186	PUTBACK;	372	PUTBACK;
187	call_sv (cb, G_DISCARD | G_EVAL);	373	call_sv (cb, G_DISCARD | G_EVAL);
188	}	374	}
189	}	375	}
190		376
		377	static int
191	static int req_invoke (eio_req *req)	378	req_invoke (eio_req *req)
192	{	379	{
193	dSP;
194
195	if (req->flags & FLAG_SV2_RO_OFF)	380	if (req->flags & FLAG_SV2_RO_OFF)
196	SvREADONLY_off (req->sv2);	381	SvREADONLY_off (req->sv2);
197		382
198	if (!EIO_CANCELLED (req) && SvOK (req->callback))	383	if (!EIO_CANCELLED (req) && req->callback)
199	{	384	{
		385	dSP;
		386	static SV *sv_result_cache; /* caches the result integer SV */
		387	SV *sv_result;
		388
200	ENTER;	389	ENTER;
201	SAVETMPS;	390	SAVETMPS;
202	PUSHMARK (SP);	391	PUSHMARK (SP);
203	EXTEND (SP, 1);	392	EXTEND (SP, 1);
204		393
		394	/* do not recreate the result IV from scratch each time */
		395	if (expect_true (sv_result_cache))
		396	{
		397	sv_result = sv_result_cache; sv_result_cache = 0;
		398	SvIV_set (sv_result, req->result);
		399	SvIOK_only (sv_result);
		400	}
		401	else
		402	{
		403	sv_result = newSViv (req->result);
		404	SvREADONLY_on (sv_result);
		405	}
		406
205	switch (req->type)	407	switch (req->type)
206	{	408	{
		409	case EIO_WD_OPEN:
		410	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		411	break;
		412
207	case EIO_READDIR:	413	case EIO_READDIR:
208	{	414	{
209	SV *rv = &PL_sv_undef;	415	SV *rv = &PL_sv_undef;
210		416
211	if (req->result >= 0)	417	if (req->result >= 0)
212	{	418	{
213	int i;	419	int i;
214	char *buf = req->ptr2;	420	char *names = (char *)req->ptr2;
		421	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
215	AV *av = newAV ();	422	AV *av = newAV ();
216		423
217	av_extend (av, req->result - 1);	424	av_extend (av, req->result - 1);
218		425
219	for (i = 0; i < req->result; ++i)	426	for (i = 0; i < req->result; ++i)
220	{	427	{
221	SV *sv = newSVpv (buf, 0);	428	if (req->int1 & EIO_READDIR_DENTS)
		429	{
		430	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
222		431
		432	if (req->int1 & EIO_READDIR_CUSTOM2)
		433	{
		434	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		435	AV *avent = newAV ();
		436
		437	av_extend (avent, 2);
		438
		439	if (!sv_type [ent->type])
		440	{
		441	sv_type [ent->type] = newSViv (ent->type);
		442	SvREADONLY_on (sv_type [ent->type]);
		443	}
		444
		445	av_store (avent, 0, namesv);
		446	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		447	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		448
		449	av_store (av, i, newRV_noinc ((SV *)avent));
		450	}
		451	else
223	av_store (av, i, sv);	452	av_store (av, i, namesv);
		453
		454	++ent;
		455	}
		456	else
		457	{
		458	SV *name = newSVpv (names, 0);
		459	av_store (av, i, name);
224	buf += SvCUR (sv) + 1;	460	names += SvCUR (name) + 1;
		461	}
225	}	462	}
226		463
227	rv = sv_2mortal (newRV_noinc ((SV *)av));	464	rv = sv_2mortal (newRV_noinc ((SV *)av));
228	}	465	}
229		466
230	PUSHs (rv);	467	PUSHs (rv);
		468
		469	if (req->int1 & EIO_READDIR_CUSTOM1)
		470	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
231	}	471	}
232	break;	472	break;
233		473
234	case EIO_OPEN:	474	case EIO_OPEN:
235	{	475	{
…		…
241	GV *gv = (GV *)sv_newmortal ();	481	GV *gv = (GV *)sv_newmortal ();
242	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	482	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
243	char sym [64];	483	char sym [64];
244	int symlen;	484	int symlen;
245		485
246	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	486	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
247	gv_init (gv, stash, sym, symlen, 0);	487	gv_init (gv, aio_stash, sym, symlen, 0);
248		488
249	symlen = snprintf (	489	symlen = snprintf (
250	sym,	490	sym,
251	sizeof (sym),	491	sizeof (sym),
252	"%s&=%d",	492	"%s&=%d",
253	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	493	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
254	req->result	494	(int)req->result
255	);	495	);
256		496
257	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	497	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
258	fh = (SV *)gv;	498	fh = (SV *)gv;
259	}	499	}
260		500
261	PUSHs (fh);	501	PUSHs (fh);
262	}	502	}
		503	break;
		504
		505	case EIO_STATVFS:
		506	case EIO_FSTATVFS:
		507	{
		508	SV *rv = &PL_sv_undef;
		509
		510	#ifndef _WIN32
		511	if (req->result >= 0)
		512	{
		513	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		514	HV *hv = newHV ();
		515	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		516	* chooses to make it a struct.
		517	*/
		518	unsigned long fsid = 0;
		519	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
		520
		521	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		522
		523	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		524	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		525	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		526	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		527	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		528	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		529	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		530	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		531	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
		532	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		533	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		534	}
		535	#endif
		536
		537	PUSHs (rv);
		538	}
		539
263	break;	540	break;
264		541
265	case EIO_GROUP:	542	case EIO_GROUP:
266	req->int1 = 2; /* mark group as finished */	543	req->int1 = 2; /* mark group as finished */
267		544
…		…
279	case EIO_NOP:	556	case EIO_NOP:
280	case EIO_BUSY:	557	case EIO_BUSY:
281	break;	558	break;
282		559
283	case EIO_READLINK:	560	case EIO_READLINK:
		561	case EIO_REALPATH:
284	if (req->result > 0)	562	if (req->result > 0)
285	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	563	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
286	break;	564	break;
287		565
288	case EIO_STAT:	566	case EIO_STAT:
289	case EIO_LSTAT:	567	case EIO_LSTAT:
290	case EIO_FSTAT:	568	case EIO_FSTAT:
291	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	569	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		570
292	PL_laststatval = req->result;	571	if (!(PL_laststatval = req->result))
		572	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
293	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	573	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
294	PUSHs (sv_2mortal (newSViv (req->result)));	574
		575	PUSHs (sv_result);
295	break;	576	break;
296		577
		578	case EIO_SEEK:
		579	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		580	break;
		581
297	case EIO_READ:	582	case EIO_READ:
		583	{
298	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	584	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
299	*SvEND (req->sv2) = 0;	585	*SvEND (req->sv2) = 0;
300	PUSHs (sv_2mortal (newSViv (req->result)));	586	SvPOK_only (req->sv2);
		587	SvSETMAGIC (req->sv2);
		588	PUSHs (sv_result);
		589	}
301	break;	590	break;
302		591
303	case EIO_DUP2:	592	case EIO_CUSTOM:
		593	if (req->feed == fiemap)
		594	{
		595	#if HAVE_FIEMAP
		596	if (!req->result)
		597	{
		598	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		599
		600	if (fiemap->fm_extent_count)
		601	{
		602	AV *av = newAV ();
		603	int i;
		604
		605	while (fiemap->fm_mapped_extents)
		606	{
		607	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		608	AV *ext_av = newAV ();
		609
		610	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		611	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		612	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		613	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		614
		615	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		616	}
		617
		618	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		619	}
		620	else
		621	{
		622	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		623	PUSHs (sv_result);
		624	}
		625	}
		626	#endif
		627	}
		628	else
		629	PUSHs (sv_result);
		630	break;
		631
		632	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
304	if (req->result > 0)	633	if (req->result > 0)
305	req->result = 0;	634	SvIV_set (sv_result, 0);
306	/* FALLTHROUGH */	635	/* FALLTHROUGH */
307		636
308	default:	637	default:
309	PUSHs (sv_2mortal (newSViv (req->result)));	638	PUSHs (sv_result);
310	break;	639	break;
311	}	640	}
312		641
313	errno = req->errorno;	642	errno = req->errorno;
314		643
315	PUTBACK;	644	PUTBACK;
316	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	645	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
317	SPAGAIN;	646	SPAGAIN;
318		647
		648	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		649	SvREFCNT_dec (sv_result);
		650	else
		651	sv_result_cache = sv_result;
		652
319	FREETMPS;	653	FREETMPS;
320	LEAVE;	654	LEAVE;
321		655
322	PUTBACK;	656	PUTBACK;
323	}	657	}
324		658
325	return !!SvTRUE (ERRSV);	659	return !!SvTRUE (ERRSV);
326	}	660	}
327		661
		662	static void
328	static void req_destroy (aio_req req)	663	req_destroy (aio_req req)
329	{	664	{
330	if (req->self)	665	if (req->self)
331	{	666	{
332	sv_unmagic (req->self, PERL_MAGIC_ext);	667	sv_unmagic (req->self, PERL_MAGIC_ext);
333	SvREFCNT_dec (req->self);	668	SvREFCNT_dec (req->self);
334	}	669	}
335		670
336	SvREFCNT_dec (req->sv1);	671	SvREFCNT_dec (req->sv1);
337	SvREFCNT_dec (req->sv2);	672	SvREFCNT_dec (req->sv2);
		673	SvREFCNT_dec (req->sv3);
		674	SvREFCNT_dec (req->sv4);
338	SvREFCNT_dec (req->callback);	675	SvREFCNT_dec (req->callback);
339		676
340	Safefree (req);	677	free (req);
341	}	678	}
342		679
		680	static void
343	static void req_cancel_subs (aio_req grp)	681	req_cancel_subs (aio_req grp)
344	{	682	{
345	aio_req sub;
346
347	if (grp->type != EIO_GROUP)	683	if (grp->type != EIO_GROUP)
348	return;	684	return;
349		685
350	SvREFCNT_dec (grp->sv2);	686	SvREFCNT_dec (grp->sv2);
351	grp->sv2 = 0;	687	grp->sv2 = 0;
352		688
353	eio_grp_cancel (grp);	689	eio_grp_cancel (grp);
354	}	690	}
355		691
356	#ifdef USE_SOCKETS_AS_HANDLES	692	static void ecb_cold
357	# define TO_SOCKET(x) (win32_get_osfhandle (x))	693	create_respipe (void)
358	#else	694	{
359	# define TO_SOCKET(x) (x)	695	if (s_epipe_renew (&respipe))
360	#endif	696	croak ("IO::AIO: unable to initialize result pipe");
		697	}
361		698
362	static void	699	static void
363	create_respipe (void)	700	poll_wait (void)
364	{	701	{
365	int old_readfd = respipe [0];
366
367	if (respipe [1] >= 0)
368	respipe_close (TO_SOCKET (respipe [1]));
369
370	#ifdef _WIN32
371	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
372	#else
373	if (pipe (respipe))
374	#endif
375	croak ("unable to initialize result pipe");
376
377	if (old_readfd >= 0)
378	{
379	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
380	croak ("unable to initialize result pipe(2)");
381
382	respipe_close (respipe [0]);
383	respipe [0] = old_readfd;
384	}
385
386	#ifdef _WIN32
387	int arg = 1;
388	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
389	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
390	#else
391	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
392	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
393	#endif
394	croak ("unable to initialize result pipe(3)");
395
396	respipe_osf [0] = TO_SOCKET (respipe [0]);
397	respipe_osf [1] = TO_SOCKET (respipe [1]);
398	}
399
400	static void poll_wait (void)
401	{
402	fd_set rfd;
403
404	while (eio_nreqs ())	702	while (eio_nreqs ())
405	{	703	{
406	int size;	704	int size;
407		705
408	X_LOCK (reslock);	706	X_LOCK (reslock);
…		…
410	X_UNLOCK (reslock);	708	X_UNLOCK (reslock);
411		709
412	if (size)	710	if (size)
413	return;	711	return;
414		712
415	maybe_start_thread ();	713	etp_maybe_start_thread ();
416		714
417	FD_ZERO (&rfd);	715	s_epipe_wait (&respipe);
418	FD_SET (respipe [0], &rfd);
419
420	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
421	}	716	}
422	}	717	}
423		718
424	static int poll_cb (void)	719	static int
		720	poll_cb (void)
425	{	721	{
426	int res;	722	for (;;)
427
428	do
429	{	723	{
430	res = eio_poll ();	724	int res = eio_poll ();
431		725
432	if (res > 0)	726	if (res > 0)
433	croak (0);	727	croak (0);
		728
		729	if (!max_outstanding || max_outstanding > eio_nreqs ())
		730	return res;
		731
		732	poll_wait ();
434	}	733	}
435	while (max_outstanding && max_outstanding <= eio_nreqs ());
436
437	return res;
438	}	734	}
439		735
440	static void atfork_child (void)	736	static void ecb_cold
		737	reinit (void)
441	{	738	{
442	create_respipe ();	739	create_respipe ();
		740
		741	if (eio_init (want_poll, done_poll) < 0)
		742	croak ("IO::AIO: unable to initialise eio library");
		743	}
		744
		745	/*****************************************************************************/
		746
		747	#if !_POSIX_MAPPED_FILES
		748	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		749	# define munmap(addr,length) EIO_ENOSYS ()
		750	#endif
		751
		752	#if !_POSIX_MEMORY_PROTECTION
		753	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		754	# define PROT_NONE 0
		755	# define PROT_WRITE 0
		756	# define MAP_PRIVATE 0
		757	# define MAP_SHARED 0
		758	# define MAP_FIXED 0
		759	#endif
		760
		761	#define MMAP_MAGIC PERL_MAGIC_ext
		762
		763	static int ecb_cold
		764	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		765	{
		766	int old_errno = errno;
		767	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		768	errno = old_errno;
		769
		770	mg->mg_obj = 0; /* just in case */
		771
		772	SvREADONLY_off (sv);
		773
		774	if (SvPVX (sv) != mg->mg_ptr)
		775	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		776
		777	SvCUR_set (sv, 0);
		778	SvPVX (sv) = 0;
		779	SvOK_off (sv);
		780
		781	return 0;
		782	}
		783
		784	static MGVTBL mmap_vtbl = {
		785	0, 0, 0, 0, mmap_free
		786	};
		787
		788	/*****************************************************************************/
		789
		790	static SV *
		791	get_cb (SV *cb_sv)
		792	{
		793	SvGETMAGIC (cb_sv);
		794	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		795	}
		796
		797	static aio_req ecb_noinline
		798	dreq (SV *callback)
		799	{
		800	SV *cb_cv;
		801	aio_req req;
		802	int req_pri = next_pri;
		803	next_pri = EIO_PRI_DEFAULT;
		804
		805	cb_cv = get_cb (callback);
		806
		807	req = calloc (sizeof (*req), 1);
		808	if (!req)
		809	croak ("out of memory during eio_req allocation");
		810
		811	req->callback = SvREFCNT_inc (cb_cv);
		812	req->pri = req_pri;
		813
		814	return req;
443	}	815	}
444		816
445	#define dREQ \	817	#define dREQ \
446	aio_req req; \	818	aio_req req = dreq (callback); \
447	int req_pri = next_pri; \
448	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \
449	\
450	if (SvOK (callback) && !SvROK (callback)) \
451	croak ("callback must be undef or of reference type"); \
452	\
453	Newz (0, req, 1, eio_req); \
454	if (!req) \
455	croak ("out of memory during eio_req allocation"); \
456	\
457	req->callback = newSVsv (callback); \
458	req->pri = req_pri
459		819
460	#define REQ_SEND \	820	#define REQ_SEND \
		821	PUTBACK; \
461	req_submit (req); \	822	req_submit (req); \
		823	SPAGAIN; \
462	\	824	\
463	if (GIMME_V != G_VOID) \	825	if (GIMME_V != G_VOID) \
464	XPUSHs (req_sv (req, AIO_REQ_KLASS));	826	XPUSHs (req_sv (req, aio_req_stash));
465		827
		828	ecb_inline void
		829	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		830	{
		831	if (expect_false (SvROK (path)))
		832	{
		833	SV *rv = SvRV (path);
		834	SV *wdob;
		835
		836	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		837	{
		838	path = AvARRAY (rv)[1];
		839	wdob = AvARRAY (rv)[0];
		840
		841	if (SvOK (wdob))
		842	{
		843	*wd = SvAIO_WD (wdob);
		844	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		845	}
		846	else
		847	*wd = EIO_INVALID_WD;
		848	}
		849	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		850	{
		851	*wd = (aio_wd)(long)SvIVX (rv);
		852	*wdsv = SvREFCNT_inc_NN (rv);
		853	*ptr = ".";
		854	return; /* path set to "." */
		855	}
		856	else
		857	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		858	}
		859
		860	*pathsv = newSVsv (path);
		861	*ptr = SvPVbyte_nolen (*pathsv);
		862	}
		863
		864	static void ecb_noinline
		865	req_set_path1 (aio_req req, SV *path)
		866	{
		867	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		868	}
		869
		870	static void ecb_noinline
		871	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		872	{
		873	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		874
		875	switch (SvTYPE (rv))
		876	{
		877	case SVt_PVIO:
		878	case SVt_PVLV:
		879	case SVt_PVGV:
		880	req->type = type_fh;
		881	req->sv1 = newSVsv (fh_or_path);
		882	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		883	break;
		884
		885	default:
		886	req->type = type_path;
		887	req_set_path1 (req, fh_or_path);
		888	break;
		889	}
		890	}
		891
		892	XS(boot_IO__AIO) ecb_cold;
		893
466	MODULE = IO::AIO PACKAGE = IO::AIO	894	MODULE = IO::AIO PACKAGE = IO::AIO
467		895
468	PROTOTYPES: ENABLE	896	PROTOTYPES: ENABLE
469		897
470	BOOT:	898	BOOT:
471	{	899	{
		900	static const struct {
		901	const char *name;
		902	IV iv;
		903	} *civ, const_iv[] = {
		904	# define const_niv(name, value) { # name, (IV) value },
		905	# define const_iv(name) { # name, (IV) name },
		906	# define const_eio(name) { # name, (IV) EIO_ ## name },
		907
		908	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		909
		910	const_iv (ENOSYS)
		911	const_iv (EXDEV)
		912	const_iv (EBADR)
		913
		914	const_iv (O_RDONLY)
		915	const_iv (O_WRONLY)
		916	const_iv (O_RDWR)
		917	const_iv (O_CREAT)
		918	const_iv (O_TRUNC)
		919	const_iv (O_EXCL)
		920	const_iv (O_APPEND)
		921
		922	const_iv (O_ASYNC)
		923	const_iv (O_DIRECT)
		924	const_iv (O_NOATIME)
		925
		926	const_iv (O_CLOEXEC)
		927	const_iv (O_NOCTTY)
		928	const_iv (O_NOFOLLOW)
		929	const_iv (O_NONBLOCK)
		930	const_iv (O_EXEC)
		931	const_iv (O_SEARCH)
		932	const_iv (O_DIRECTORY)
		933	const_iv (O_DSYNC)
		934	const_iv (O_RSYNC)
		935	const_iv (O_SYNC)
		936	const_iv (O_TTY_INIT)
		937
		938	const_iv (S_IFIFO)
		939	const_iv (S_IFCHR)
		940	const_iv (S_IFBLK)
		941	const_iv (S_IFLNK)
		942	const_iv (S_IFREG)
		943	const_iv (S_IFDIR)
		944	const_iv (S_IFWHT)
		945	const_iv (S_IFSOCK)
		946	const_iv (S_IFMT)
		947
		948	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		949	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		950	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		951	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		952	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		953	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		954
		955	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		956	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		957	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		958	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		959	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		960
		961	const_iv (ST_RDONLY)
		962	const_iv (ST_NOSUID)
		963	const_iv (ST_NODEV)
		964	const_iv (ST_NOEXEC)
		965	const_iv (ST_SYNCHRONOUS)
		966	const_iv (ST_MANDLOCK)
		967	const_iv (ST_WRITE)
		968	const_iv (ST_APPEND)
		969	const_iv (ST_IMMUTABLE)
		970	const_iv (ST_NOATIME)
		971	const_iv (ST_NODIRATIME)
		972	const_iv (ST_RELATIME)
		973
		974	const_iv (PROT_NONE)
		975	const_iv (PROT_EXEC)
		976	const_iv (PROT_READ)
		977	const_iv (PROT_WRITE)
		978
		979	/*const_iv (MAP_FIXED)*/
		980	const_iv (MAP_PRIVATE)
		981	const_iv (MAP_SHARED)
		982	const_iv (MAP_ANONYMOUS)
		983
		984	/* linuxish */
		985	const_iv (MAP_HUGETLB)
		986	const_iv (MAP_LOCKED)
		987	const_iv (MAP_NORESERVE)
		988	const_iv (MAP_POPULATE)
		989	const_iv (MAP_NONBLOCK)
		990
		991	const_iv (FIEMAP_FLAG_SYNC)
		992	const_iv (FIEMAP_FLAG_XATTR)
		993	const_iv (FIEMAP_FLAGS_COMPAT)
		994	const_iv (FIEMAP_EXTENT_LAST)
		995	const_iv (FIEMAP_EXTENT_UNKNOWN)
		996	const_iv (FIEMAP_EXTENT_DELALLOC)
		997	const_iv (FIEMAP_EXTENT_ENCODED)
		998	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		999	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1000	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1001	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1002	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1003	const_iv (FIEMAP_EXTENT_MERGED)
		1004	const_iv (FIEMAP_EXTENT_SHARED)
		1005
		1006	const_iv (SPLICE_F_MOVE)
		1007	const_iv (SPLICE_F_NONBLOCK)
		1008	const_iv (SPLICE_F_MORE)
		1009	const_iv (SPLICE_F_GIFT)
		1010
		1011	const_iv (SEEK_DATA)
		1012	const_iv (SEEK_HOLE)
		1013
		1014	/* libeio constants */
		1015	const_eio (SEEK_SET)
		1016	const_eio (SEEK_CUR)
		1017	const_eio (SEEK_END)
		1018
		1019	const_eio (MCL_FUTURE)
		1020	const_eio (MCL_CURRENT)
		1021
		1022	const_eio (MS_ASYNC)
		1023	const_eio (MS_INVALIDATE)
		1024	const_eio (MS_SYNC)
		1025
		1026	const_eio (MT_MODIFY)
		1027
		1028	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		1029	const_eio (SYNC_FILE_RANGE_WRITE)
		1030	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1031
		1032	const_eio (FALLOC_FL_KEEP_SIZE)
		1033	const_eio (FALLOC_FL_PUNCH_HOLE)
		1034
		1035	const_eio (READDIR_DENTS)
		1036	const_eio (READDIR_DIRS_FIRST)
		1037	const_eio (READDIR_STAT_ORDER)
		1038	const_eio (READDIR_FOUND_UNKNOWN)
		1039
		1040	const_eio (DT_UNKNOWN)
		1041	const_eio (DT_FIFO)
		1042	const_eio (DT_CHR)
		1043	const_eio (DT_DIR)
		1044	const_eio (DT_BLK)
		1045	const_eio (DT_REG)
		1046	const_eio (DT_LNK)
		1047	const_eio (DT_SOCK)
		1048	const_eio (DT_WHT)
		1049	};
		1050
472	stash = gv_stashpv ("IO::AIO", 1);	1051	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1052	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1053	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1054	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
473		1055
474	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1056	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
475	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1057	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
476	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
477	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
478	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
479	#ifdef _WIN32
480	X_MUTEX_CHECK (wrklock);
481	X_MUTEX_CHECK (reslock);
482	X_MUTEX_CHECK (reqlock);
483	X_MUTEX_CHECK (reqwait);
484	X_MUTEX_CHECK (preadwritelock);
485	X_MUTEX_CHECK (readdirlock);
486		1058
487	X_COND_CHECK (reqwait);	1059	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
488	#else
489	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
490	#endif
491		1060
492	create_respipe ();	1061	reinit ();
493
494	if (eio_init (want_poll, done_poll) < 0)
495	croak ("IO::AIO: unable to initialise eio library");
496
497	/* atfork child called in fifo order, so before eio's handler */
498	X_THREAD_ATFORK (0, 0, atfork_child);
499	}	1062	}
500		1063
501	void	1064	void
		1065	reinit ()
		1066	PROTOTYPE:
		1067
		1068	void
502	max_poll_reqs (int nreqs)	1069	max_poll_reqs (unsigned int nreqs)
503	PROTOTYPE: $	1070	PROTOTYPE: $
504	CODE:	1071	CODE:
505	eio_set_max_poll_reqs (nreqs);	1072	eio_set_max_poll_reqs (nreqs);
506		1073
507	void	1074	void
…		…
509	PROTOTYPE: $	1076	PROTOTYPE: $
510	CODE:	1077	CODE:
511	eio_set_max_poll_time (nseconds);	1078	eio_set_max_poll_time (nseconds);
512		1079
513	void	1080	void
514	min_parallel (int nthreads)	1081	min_parallel (unsigned int nthreads)
515	PROTOTYPE: $	1082	PROTOTYPE: $
516	CODE:	1083	CODE:
517	eio_set_min_parallel (nthreads);	1084	eio_set_min_parallel (nthreads);
518		1085
519	void	1086	void
520	max_parallel (int nthreads)	1087	max_parallel (unsigned int nthreads)
521	PROTOTYPE: $	1088	PROTOTYPE: $
522	CODE:	1089	CODE:
523	eio_set_max_parallel (nthreads);	1090	eio_set_max_parallel (nthreads);
524		1091
525	void	1092	void
526	max_idle (int nthreads)	1093	max_idle (unsigned int nthreads)
527	PROTOTYPE: $	1094	PROTOTYPE: $
528	CODE:	1095	CODE:
529	eio_set_max_idle (nthreads);	1096	eio_set_max_idle (nthreads);
530		1097
531	void	1098	void
		1099	idle_timeout (unsigned int seconds)
		1100	PROTOTYPE: $
		1101	CODE:
		1102	eio_set_idle_timeout (seconds);
		1103
		1104	void
532	max_outstanding (int maxreqs)	1105	max_outstanding (unsigned int maxreqs)
533	PROTOTYPE: $	1106	PROTOTYPE: $
534	CODE:	1107	CODE:
535	max_outstanding = maxreqs;	1108	max_outstanding = maxreqs;
536		1109
537	void	1110	void
		1111	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1112	PPCODE:
		1113	{
		1114	dREQ;
		1115
		1116	req->type = EIO_WD_OPEN;
		1117	req_set_path1 (req, pathname);
		1118
		1119	REQ_SEND;
		1120	}
		1121
		1122	void
538	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1123	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
539	PROTOTYPE: $$$;$
540	PPCODE:	1124	PPCODE:
541	{	1125	{
542	dREQ;	1126	dREQ;
543		1127
544	req->type = EIO_OPEN;	1128	req->type = EIO_OPEN;
545	req->sv1 = newSVsv (pathname);	1129	req_set_path1 (req, pathname);
546	req->ptr1 = SvPVbyte_nolen (req->sv1);
547	req->int1 = flags;	1130	req->int1 = flags;
548	req->int2 = mode;	1131	req->int2 = mode;
549		1132
550	REQ_SEND;	1133	REQ_SEND;
551	}	1134	}
552		1135
553	void	1136	void
554	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1137	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
555	PROTOTYPE: $;$
556	ALIAS:	1138	ALIAS:
557	aio_fsync = EIO_FSYNC	1139	aio_fsync = EIO_FSYNC
558	aio_fdatasync = EIO_FDATASYNC	1140	aio_fdatasync = EIO_FDATASYNC
		1141	aio_syncfs = EIO_SYNCFS
559	PPCODE:	1142	PPCODE:
560	{	1143	{
		1144	int fd = s_fileno_croak (fh, 0);
561	dREQ;	1145	dREQ;
562		1146
563	req->type = ix;	1147	req->type = ix;
564	req->sv1 = newSVsv (fh);	1148	req->sv1 = newSVsv (fh);
565	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1149	req->int1 = fd;
566		1150
567	REQ_SEND (req);	1151	REQ_SEND;
		1152	}
		1153
		1154	void
		1155	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		1156	PPCODE:
		1157	{
		1158	int fd = s_fileno_croak (fh, 0);
		1159	dREQ;
		1160
		1161	req->type = EIO_SYNC_FILE_RANGE;
		1162	req->sv1 = newSVsv (fh);
		1163	req->int1 = fd;
		1164	req->offs = offset;
		1165	req->size = nbytes;
		1166	req->int2 = flags;
		1167
		1168	REQ_SEND;
		1169	}
		1170
		1171	void
		1172	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1173	PPCODE:
		1174	{
		1175	int fd = s_fileno_croak (fh, 0);
		1176	dREQ;
		1177
		1178	req->type = EIO_FALLOCATE;
		1179	req->sv1 = newSVsv (fh);
		1180	req->int1 = fd;
		1181	req->int2 = mode;
		1182	req->offs = offset;
		1183	req->size = len;
		1184
		1185	REQ_SEND;
568	}	1186	}
569		1187
570	void	1188	void
571	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1189	aio_close (SV *fh, SV *callback=&PL_sv_undef)
572	PROTOTYPE: $;$
573	PPCODE:	1190	PPCODE:
574	{	1191	{
575	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1192	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1193	int fd = s_fileno_croak (fh, 0);
576	dREQ;	1194	dREQ;
577		1195
578	if (close_pipe < 0)	1196	if (expect_false (close_fd < 0))
579	{	1197	{
580	int pipefd [2];	1198	int pipefd [2];
581		1199
		1200	if (
		1201	#ifdef _WIN32
		1202	_pipe (pipefd, 1, _O_BINARY) < 0
		1203	#else
582	if (pipe (pipefd) < 0	1204	pipe (pipefd) < 0
583	|| close (pipefd [1]) < 0
584	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1205	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1206	#endif
		1207	|| close (pipefd [1]) < 0
		1208	)
585	abort (); /*D*/	1209	abort (); /*D*/
586		1210
587	close_pipe = pipefd [0];	1211	close_fd = pipefd [0];
588	}	1212	}
589		1213
590	req->type = EIO_DUP2;	1214	req->type = EIO_DUP2;
591	req->int1 = close_pipe;	1215	req->int1 = close_fd;
592	req->sv2 = newSVsv (fh);	1216	req->sv2 = newSVsv (fh);
593	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1217	req->int2 = fd;
594		1218
595	REQ_SEND (req);	1219	REQ_SEND;
		1220	}
		1221
		1222	void
		1223	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1224	PPCODE:
		1225	{
		1226	int fd = s_fileno_croak (fh, 0);
		1227	dREQ;
		1228
		1229	req->type = EIO_SEEK;
		1230	req->sv1 = newSVsv (fh);
		1231	req->int1 = fd;
		1232	req->offs = SvVAL64 (offset);
		1233	req->int2 = whence;
		1234
		1235	REQ_SEND;
596	}	1236	}
597		1237
598	void	1238	void
599	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1239	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
600	ALIAS:	1240	ALIAS:
601	aio_read = EIO_READ	1241	aio_read = EIO_READ
602	aio_write = EIO_WRITE	1242	aio_write = EIO_WRITE
603	PROTOTYPE: $$$$$;$
604	PPCODE:	1243	PPCODE:
605	{	1244	{
606	STRLEN svlen;	1245	STRLEN svlen;
		1246	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
607	char *svptr = SvPVbyte (data, svlen);	1247	char *svptr = SvPVbyte (data, svlen);
608	UV len = SvUV (length);	1248	UV len = SvUV (length);
609
610	SvUPGRADE (data, SVt_PV);
611	SvPOK_on (data);
612		1249
613	if (dataoffset < 0)	1250	if (dataoffset < 0)
614	dataoffset += svlen;	1251	dataoffset += svlen;
615		1252
616	if (dataoffset < 0 || dataoffset > svlen)	1253	if (dataoffset < 0 || dataoffset > svlen)
…		…
622	if (!SvOK (length) || len + dataoffset > svlen)	1259	if (!SvOK (length) || len + dataoffset > svlen)
623	len = svlen - dataoffset;	1260	len = svlen - dataoffset;
624	}	1261	}
625	else	1262	else
626	{	1263	{
627	/* read: grow scalar as necessary */	1264	/* read: check type and grow scalar as necessary */
		1265	SvUPGRADE (data, SVt_PV);
		1266	if (SvLEN (data) >= SvCUR (data))
628	svptr = SvGROW (data, len + dataoffset + 1);	1267	svptr = SvGROW (data, len + dataoffset + 1);
		1268	else if (SvCUR (data) < len + dataoffset)
		1269	croak ("length + dataoffset outside of scalar, and cannot grow");
629	}	1270	}
630
631	if (len < 0)
632	croak ("length must not be negative");
633		1271
634	{	1272	{
635	dREQ;	1273	dREQ;
636		1274
637	req->type = ix;	1275	req->type = ix;
638	req->sv1 = newSVsv (fh);	1276	req->sv1 = newSVsv (fh);
639	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1277	req->int1 = fd;
640	: IoOFP (sv_2io (fh)));
641	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1278	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
642	req->size = len;	1279	req->size = len;
643	req->sv2 = SvREFCNT_inc (data);	1280	req->sv2 = SvREFCNT_inc (data);
644	req->ptr2 = (char *)svptr + dataoffset;	1281	req->ptr2 = (char *)svptr + dataoffset;
645	req->stroffset = dataoffset;	1282	req->stroffset = dataoffset;
…		…
653	REQ_SEND;	1290	REQ_SEND;
654	}	1291	}
655	}	1292	}
656		1293
657	void	1294	void
658	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1295	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
659	PROTOTYPE: $$;$	1296	ALIAS:
		1297	aio_readlink = EIO_READLINK
		1298	aio_realpath = EIO_REALPATH
660	PPCODE:	1299	PPCODE:
661	{	1300	{
662	SV *data;
663	dREQ;	1301	dREQ;
664		1302
665	req->type = EIO_READLINK;	1303	req->type = ix;
666	req->sv1 = newSVsv (path);	1304	req_set_path1 (req, pathname);
667	req->ptr1 = SvPVbyte_nolen (req->sv1);
668		1305
669	REQ_SEND;	1306	REQ_SEND;
670	}	1307	}
671		1308
672	void	1309	void
673	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1310	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
674	PROTOTYPE: $$$$;$
675	PPCODE:	1311	PPCODE:
676	{	1312	{
		1313	int ifd = s_fileno_croak (in_fh , 0);
		1314	int ofd = s_fileno_croak (out_fh, 1);
677	dREQ;	1315	dREQ;
678		1316
679	req->type = EIO_SENDFILE;	1317	req->type = EIO_SENDFILE;
680	req->sv1 = newSVsv (out_fh);	1318	req->sv1 = newSVsv (out_fh);
681	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1319	req->int1 = ofd;
682	req->sv2 = newSVsv (in_fh);	1320	req->sv2 = newSVsv (in_fh);
683	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1321	req->int2 = ifd;
684	req->offs = SvVAL64 (in_offset);	1322	req->offs = in_offset;
685	req->size = length;	1323	req->size = length;
686		1324
687	REQ_SEND;	1325	REQ_SEND;
688	}	1326	}
689		1327
690	void	1328	void
691	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1329	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
692	PROTOTYPE: $$$;$
693	PPCODE:	1330	PPCODE:
694	{	1331	{
		1332	int fd = s_fileno_croak (fh, 0);
695	dREQ;	1333	dREQ;
696		1334
697	req->type = EIO_READAHEAD;	1335	req->type = EIO_READAHEAD;
698	req->sv1 = newSVsv (fh);	1336	req->sv1 = newSVsv (fh);
699	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1337	req->int1 = fd;
700	req->offs = SvVAL64 (offset);	1338	req->offs = offset;
701	req->size = length;	1339	req->size = length;
702		1340
703	REQ_SEND;	1341	REQ_SEND;
704	}	1342	}
705		1343
706	void	1344	void
707	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1345	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
708	ALIAS:	1346	ALIAS:
709	aio_stat = EIO_STAT	1347	aio_stat = EIO_STAT
710	aio_lstat = EIO_LSTAT	1348	aio_lstat = EIO_LSTAT
		1349	aio_statvfs = EIO_STATVFS
711	PPCODE:	1350	PPCODE:
712	{	1351	{
713	dREQ;	1352	dREQ;
714		1353
715	req->sv1 = newSVsv (fh_or_path);	1354	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
716
717	if (SvPOK (req->sv1))
718	{
719	req->type = ix;
720	req->ptr1 = SvPVbyte_nolen (req->sv1);
721	}
722	else
723	{
724	req->type = EIO_FSTAT;
725	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
726	}
727		1355
728	REQ_SEND;	1356	REQ_SEND;
729	}	1357	}
		1358
		1359	UV
		1360	major (UV dev)
		1361	ALIAS:
		1362	minor = 1
		1363	CODE:
		1364	RETVAL = ix ? major (dev) : minor (dev);
		1365	OUTPUT:
		1366	RETVAL
		1367
		1368	UV
		1369	makedev (UV maj, UV min)
		1370	CODE:
		1371	RETVAL = makedev (maj, min);
		1372	OUTPUT:
		1373	RETVAL
730		1374
731	void	1375	void
732	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1376	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
733	PPCODE:	1377	PPCODE:
734	{	1378	{
735	dREQ;	1379	dREQ;
736		1380
737	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1381	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
738	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1382	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
739	req->sv1 = newSVsv (fh_or_path);	1383	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
740
741	if (SvPOK (req->sv1))
742	{
743	req->type = EIO_UTIME;
744	req->ptr1 = SvPVbyte_nolen (req->sv1);
745	}
746	else
747	{
748	req->type = EIO_FUTIME;
749	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
750	}
751		1384
752	REQ_SEND;	1385	REQ_SEND;
753	}	1386	}
754		1387
755	void	1388	void
756	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1389	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
757	PPCODE:	1390	PPCODE:
758	{	1391	{
759	dREQ;	1392	dREQ;
760		1393
761	req->sv1 = newSVsv (fh_or_path);
762	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1394	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
763		1395	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
764	if (SvPOK (req->sv1))
765	{
766	req->type = EIO_TRUNCATE;
767	req->ptr1 = SvPVbyte_nolen (req->sv1);
768	}
769	else
770	{
771	req->type = EIO_FTRUNCATE;
772	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
773	}
774		1396
775	REQ_SEND;	1397	REQ_SEND;
776	}	1398	}
777		1399
778	void	1400	void
779	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1401	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
780	ALIAS:
781	aio_chmod = EIO_CHMOD
782	aio_mkdir = EIO_MKDIR
783	PPCODE:	1402	PPCODE:
784	{	1403	{
785	dREQ;	1404	dREQ;
786		1405
787	req->int2 = mode;	1406	req->int2 = mode;
788	req->sv1 = newSVsv (fh_or_path);	1407	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
789
790	if (SvPOK (req->sv1))
791	{
792	req->type = ix;
793	req->ptr1 = SvPVbyte_nolen (req->sv1);
794	}
795	else
796	{
797	req->type = EIO_FCHMOD;
798	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
799	}
800		1408
801	REQ_SEND;	1409	REQ_SEND;
802	}	1410	}
803		1411
804	void	1412	void
…		…
807	{	1415	{
808	dREQ;	1416	dREQ;
809		1417
810	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1418	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
811	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1419	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
812	req->sv1 = newSVsv (fh_or_path);	1420	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
813		1421
814	if (SvPOK (req->sv1))	1422	REQ_SEND;
815	{	1423	}
		1424
		1425	void
		1426	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1427	PPCODE:
		1428	{
		1429	dREQ;
		1430
		1431	req->type = EIO_READDIR;
		1432	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1433
		1434	if (flags & EIO_READDIR_DENTS)
		1435	req->int1 |= EIO_READDIR_CUSTOM2;
		1436
		1437	req_set_path1 (req, pathname);
		1438
		1439	REQ_SEND;
		1440	}
		1441
		1442	void
		1443	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1444	PPCODE:
		1445	{
		1446	dREQ;
		1447
816	req->type = EIO_CHOWN;	1448	req->type = EIO_MKDIR;
817	req->ptr1 = SvPVbyte_nolen (req->sv1);	1449	req->int2 = mode;
818	}	1450	req_set_path1 (req, pathname);
819	else
820	{
821	req->type = EIO_FCHOWN;
822	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
823	}
824		1451
825	REQ_SEND;	1452	REQ_SEND;
826	}	1453	}
827		1454
828	void	1455	void
…		…
834	PPCODE:	1461	PPCODE:
835	{	1462	{
836	dREQ;	1463	dREQ;
837		1464
838	req->type = ix;	1465	req->type = ix;
839	req->sv1 = newSVsv (pathname);	1466	req_set_path1 (req, pathname);
840	req->ptr1 = SvPVbyte_nolen (req->sv1);
841		1467
842	REQ_SEND;	1468	REQ_SEND;
843	}	1469	}
844		1470
845	void	1471	void
…		…
848	aio_link = EIO_LINK	1474	aio_link = EIO_LINK
849	aio_symlink = EIO_SYMLINK	1475	aio_symlink = EIO_SYMLINK
850	aio_rename = EIO_RENAME	1476	aio_rename = EIO_RENAME
851	PPCODE:	1477	PPCODE:
852	{	1478	{
		1479	eio_wd wd2 = 0;
853	dREQ;	1480	dREQ;
854		1481
855	req->type = ix;	1482	req->type = ix;
856	req->sv1 = newSVsv (oldpath);	1483	req_set_path1 (req, oldpath);
857	req->ptr1 = SvPVbyte_nolen (req->sv1);	1484	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
858	req->sv2 = newSVsv (newpath);	1485	req->int3 = (long)wd2;
859	req->ptr2 = SvPVbyte_nolen (req->sv2);
860		1486
861	REQ_SEND;	1487	REQ_SEND;
862	}	1488	}
863		1489
864	void	1490	void
…		…
866	PPCODE:	1492	PPCODE:
867	{	1493	{
868	dREQ;	1494	dREQ;
869		1495
870	req->type = EIO_MKNOD;	1496	req->type = EIO_MKNOD;
871	req->sv1 = newSVsv (pathname);
872	req->ptr1 = SvPVbyte_nolen (req->sv1);
873	req->int2 = (mode_t)mode;	1497	req->int2 = (mode_t)mode;
874	req->offs = dev;	1498	req->offs = dev;
		1499	req_set_path1 (req, pathname);
875		1500
876	REQ_SEND;	1501	REQ_SEND;
877	}	1502	}
878		1503
879	void	1504	void
		1505	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1506	ALIAS:
		1507	aio_mtouch = EIO_MTOUCH
		1508	aio_msync = EIO_MSYNC
		1509	PPCODE:
		1510	{
		1511	STRLEN svlen;
		1512	char *svptr = SvPVbyte (data, svlen);
		1513	UV len = SvUV (length);
		1514
		1515	if (offset < 0)
		1516	offset += svlen;
		1517
		1518	if (offset < 0 || offset > svlen)
		1519	croak ("offset outside of scalar");
		1520
		1521	if (!SvOK (length) || len + offset > svlen)
		1522	len = svlen - offset;
		1523
		1524	{
		1525	dREQ;
		1526
		1527	req->type = ix;
		1528	req->sv2 = SvREFCNT_inc (data);
		1529	req->ptr2 = (char *)svptr + offset;
		1530	req->size = len;
		1531	req->int1 = flags;
		1532
		1533	REQ_SEND;
		1534	}
		1535	}
		1536
		1537	void
		1538	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1539	PPCODE:
		1540	{
		1541	STRLEN svlen;
		1542	char *svptr = SvPVbyte (data, svlen);
		1543	UV len = SvUV (length);
		1544
		1545	if (offset < 0)
		1546	offset += svlen;
		1547
		1548	if (offset < 0 || offset > svlen)
		1549	croak ("offset outside of scalar");
		1550
		1551	if (!SvOK (length) || len + offset > svlen)
		1552	len = svlen - offset;
		1553
		1554	{
		1555	dREQ;
		1556
		1557	req->type = EIO_MLOCK;
		1558	req->sv2 = SvREFCNT_inc (data);
		1559	req->ptr2 = (char *)svptr + offset;
		1560	req->size = len;
		1561
		1562	REQ_SEND;
		1563	}
		1564	}
		1565
		1566	void
		1567	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1568	PPCODE:
		1569	{
		1570	dREQ;
		1571
		1572	req->type = EIO_MLOCKALL;
		1573	req->int1 = flags;
		1574
		1575	REQ_SEND;
		1576	}
		1577
		1578	void
		1579	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1580	PPCODE:
		1581	{
		1582	int fd = s_fileno_croak (fh, 0);
		1583	dREQ;
		1584
		1585	req->type = EIO_CUSTOM;
		1586	req->sv1 = newSVsv (fh);
		1587	req->int1 = fd;
		1588
		1589	req->feed = fiemap;
		1590	#if HAVE_FIEMAP
		1591	/* keep our fingers crossed that the next two types are 64 bit */
		1592	req->offs = start;
		1593	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1594	req->int2 = flags;
		1595	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1596	#endif
		1597
		1598	REQ_SEND;
		1599	}
		1600
		1601	void
880	aio_busy (double delay, SV *callback=&PL_sv_undef)	1602	aio_busy (double delay, SV *callback=&PL_sv_undef)
881	PPCODE:	1603	PPCODE:
882	{	1604	{
883	dREQ;	1605	dREQ;
884		1606
…		…
888	REQ_SEND;	1610	REQ_SEND;
889	}	1611	}
890		1612
891	void	1613	void
892	aio_group (SV *callback=&PL_sv_undef)	1614	aio_group (SV *callback=&PL_sv_undef)
893	PROTOTYPE: ;$
894	PPCODE:	1615	PPCODE:
895	{	1616	{
896	dREQ;	1617	dREQ;
897		1618
898	req->type = EIO_GROUP;	1619	req->type = EIO_GROUP;
899		1620
		1621	PUTBACK;
900	eio_submit (req);	1622	req_submit (req);
		1623	SPAGAIN;
		1624
901	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1625	XPUSHs (req_sv (req, aio_grp_stash));
902	}	1626	}
903		1627
904	void	1628	void
905	aio_nop (SV *callback=&PL_sv_undef)	1629	aio_nop (SV *callback=&PL_sv_undef)
906	ALIAS:	1630	ALIAS:
…		…
915	REQ_SEND;	1639	REQ_SEND;
916	}	1640	}
917		1641
918	int	1642	int
919	aioreq_pri (int pri = 0)	1643	aioreq_pri (int pri = 0)
920	PROTOTYPE: ;$
921	CODE:	1644	CODE:
922	RETVAL = next_pri - EIO_PRI_BIAS;	1645	RETVAL = next_pri;
923	if (items > 0)	1646	if (items > 0)
924	{	1647	{
925	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1648	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
926	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1649	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
927	next_pri = pri + EIO_PRI_BIAS;	1650	next_pri = pri;
928	}	1651	}
929	OUTPUT:	1652	OUTPUT:
930	RETVAL	1653	RETVAL
931		1654
932	void	1655	void
933	aioreq_nice (int nice = 0)	1656	aioreq_nice (int nice = 0)
934	CODE:	1657	CODE:
935	nice = next_pri - nice;	1658	nice = next_pri - nice;
936	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1659	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
937	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1660	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
938	next_pri = nice + EIO_PRI_BIAS;	1661	next_pri = nice;
939		1662
940	void	1663	void
941	flush ()	1664	flush ()
942	PROTOTYPE:
943	CODE:	1665	CODE:
944	while (eio_nreqs ())	1666	while (eio_nreqs ())
945	{	1667	{
946	poll_wait ();	1668	poll_wait ();
947	poll_cb ();	1669	poll_cb ();
948	}	1670	}
949		1671
950	int	1672	int
951	poll()	1673	poll ()
952	PROTOTYPE:
953	CODE:	1674	CODE:
954	poll_wait ();	1675	poll_wait ();
955	RETVAL = poll_cb ();	1676	RETVAL = poll_cb ();
956	OUTPUT:	1677	OUTPUT:
957	RETVAL	1678	RETVAL
958		1679
959	int	1680	int
960	poll_fileno()	1681	poll_fileno ()
961	PROTOTYPE:
962	CODE:	1682	CODE:
963	RETVAL = respipe [0];	1683	RETVAL = s_epipe_fd (&respipe);
964	OUTPUT:	1684	OUTPUT:
965	RETVAL	1685	RETVAL
966		1686
967	int	1687	int
968	poll_cb(...)	1688	poll_cb (...)
969	PROTOTYPE:	1689	PROTOTYPE:
970	CODE:	1690	CODE:
971	RETVAL = poll_cb ();	1691	RETVAL = poll_cb ();
972	OUTPUT:	1692	OUTPUT:
973	RETVAL	1693	RETVAL
974		1694
975	void	1695	void
976	poll_wait()	1696	poll_wait ()
977	PROTOTYPE:
978	CODE:	1697	CODE:
979	poll_wait ();	1698	poll_wait ();
980		1699
981	int	1700	int
982	nreqs()	1701	nreqs ()
983	PROTOTYPE:
984	CODE:	1702	CODE:
985	RETVAL = eio_nreqs ();	1703	RETVAL = eio_nreqs ();
986	OUTPUT:	1704	OUTPUT:
987	RETVAL	1705	RETVAL
988		1706
989	int	1707	int
990	nready()	1708	nready ()
991	PROTOTYPE:
992	CODE:	1709	CODE:
993	RETVAL = eio_nready ();	1710	RETVAL = eio_nready ();
994	OUTPUT:	1711	OUTPUT:
995	RETVAL	1712	RETVAL
996		1713
997	int	1714	int
998	npending()	1715	npending ()
999	PROTOTYPE:
1000	CODE:	1716	CODE:
1001	RETVAL = eio_npending ();	1717	RETVAL = eio_npending ();
1002	OUTPUT:	1718	OUTPUT:
1003	RETVAL	1719	RETVAL
1004		1720
1005	int	1721	int
1006	nthreads()	1722	nthreads ()
1007	PROTOTYPE:
1008	CODE:	1723	CODE:
1009	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1724	RETVAL = eio_nthreads ();
1010	RETVAL = started;
1011	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1012	OUTPUT:	1725	OUTPUT:
1013	RETVAL	1726	RETVAL
		1727
		1728	int
		1729	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1730	CODE:
		1731	RETVAL = posix_fadvise (fh, offset, length, advice);
		1732	OUTPUT:
		1733	RETVAL
		1734
		1735	IV
		1736	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1737	CODE:
		1738	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1739	OUTPUT:
		1740	RETVAL
		1741
		1742	void
		1743	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1744	PPCODE:
		1745	sv_unmagic (scalar, MMAP_MAGIC);
		1746	{
		1747	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1748	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1749	if (addr == (void *)-1)
		1750	XSRETURN_NO;
		1751
		1752	sv_force_normal (scalar);
		1753
		1754	/* we store the length in mg_obj, as namlen is I32 :/ */
		1755	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1756	->mg_obj = (SV *)length;
		1757
		1758	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1759
		1760	if (!(prot & PROT_WRITE))
		1761	SvREADONLY_on (scalar);
		1762
		1763	if (SvLEN (scalar))
		1764	Safefree (SvPVX (scalar));
		1765
		1766	SvPVX (scalar) = (char *)addr;
		1767	SvCUR_set (scalar, length);
		1768	SvLEN_set (scalar, 0);
		1769	SvPOK_only (scalar);
		1770
		1771	XSRETURN_YES;
		1772	}
		1773
		1774	void
		1775	munmap (SV *scalar)
		1776	CODE:
		1777	sv_unmagic (scalar, MMAP_MAGIC);
		1778
		1779	int
		1780	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1781	ALIAS:
		1782	mprotect = 1
		1783	CODE:
		1784	{
		1785	STRLEN svlen;
		1786	void *addr = SvPVbyte (scalar, svlen);
		1787	size_t len = SvUV (length);
		1788
		1789	if (offset < 0)
		1790	offset += svlen;
		1791
		1792	if (offset < 0 || offset > svlen)
		1793	croak ("offset outside of scalar");
		1794
		1795	if (!SvOK (length) || len + offset > svlen)
		1796	len = svlen - offset;
		1797
		1798	addr = (void *)(((intptr_t)addr) + offset);
		1799	eio_page_align (&addr, &len);
		1800
		1801	switch (ix)
		1802	{
		1803	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1804	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1805	}
		1806	}
		1807	OUTPUT:
		1808	RETVAL
		1809
		1810	int
		1811	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1812	CODE:
		1813	{
		1814	STRLEN svlen;
		1815	void *addr = SvPVbyte (scalar, svlen);
		1816	size_t len = SvUV (length);
		1817
		1818	if (offset < 0)
		1819	offset += svlen;
		1820
		1821	if (offset < 0 || offset > svlen)
		1822	croak ("offset outside of scalar");
		1823
		1824	if (!SvOK (length) || len + offset > svlen)
		1825	len = svlen - offset;
		1826
		1827	addr = (void *)(((intptr_t)addr) + offset);
		1828	eio_page_align (&addr, &len);
		1829	#if _POSIX_MEMLOCK_RANGE
		1830	RETVAL = munlock (addr, len);
		1831	#else
		1832	RETVAL = EIO_ENOSYS ();
		1833	#endif
		1834	}
		1835	OUTPUT:
		1836	RETVAL
		1837
		1838	int
		1839	munlockall ()
		1840	CODE:
		1841	#if _POSIX_MEMLOCK
		1842	munlockall ();
		1843	#else
		1844	RETVAL = EIO_ENOSYS ();
		1845	#endif
		1846	OUTPUT:
		1847	RETVAL
		1848
		1849	int
		1850	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1851	CODE:
		1852	{
		1853	#if HAVE_LINUX_SPLICE
		1854	loff_t off_in_, off_out_;
		1855	RETVAL = splice (
		1856	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1857	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1858	length, flags
		1859	);
		1860	#else
		1861	RETVAL = EIO_ENOSYS ();
		1862	#endif
		1863	}
		1864	OUTPUT:
		1865	RETVAL
		1866
		1867	int
		1868	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1869	CODE:
		1870	#if HAVE_LINUX_SPLICE
		1871	RETVAL = tee (rfh, wfh, length, flags);
		1872	#else
		1873	RETVAL = EIO_ENOSYS ();
		1874	#endif
		1875	OUTPUT:
		1876	RETVAL
		1877
		1878	int
		1879	pipesize (aio_rfd rfh, int new_size = -1)
		1880	PROTOTYPE: $;$
		1881	CODE:
		1882	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		1883	if (new_size >= 0)
		1884	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		1885	else
		1886	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		1887	#else
		1888	errno = ENOSYS;
		1889	RETVAL = -1;
		1890	#endif
		1891	OUTPUT:
		1892	RETVAL
1014		1893
1015	void _on_next_submit (SV *cb)	1894	void _on_next_submit (SV *cb)
1016	CODE:	1895	CODE:
1017	SvREFCNT_dec (on_next_submit);	1896	SvREFCNT_dec (on_next_submit);
1018	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1897	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1019		1898
1020	PROTOTYPES: DISABLE	1899	PROTOTYPES: DISABLE
1021		1900
		1901	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1902
		1903	BOOT:
		1904	{
		1905	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1906	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1907	}
		1908
		1909	void
		1910	DESTROY (SV *self)
		1911	CODE:
		1912	{
		1913	aio_wd wd = SvAIO_WD (self);
		1914	#if HAVE_AT
		1915	{
		1916	SV *callback = &PL_sv_undef;
		1917	dREQ; /* clobbers next_pri :/ */
		1918	next_pri = req->pri; /* restore next_pri */
		1919	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1920	req->type = EIO_WD_CLOSE;
		1921	req->wd = wd;
		1922	REQ_SEND;
		1923	}
		1924	#else
		1925	eio_wd_close_sync (wd);
		1926	#endif
		1927	}
		1928
1022	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1929	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1023		1930
1024	void	1931	void
1025	cancel (aio_req_ornot req)	1932	cancel (aio_req_ornot req)
1026	CODE:	1933	CODE:
1027	eio_cancel (req);	1934	eio_cancel (req);
1028		1935
1029	void	1936	void
1030	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1937	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1031	CODE:	1938	PPCODE:
		1939	{
		1940	if (GIMME_V != G_VOID)
		1941	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1942
		1943	if (items > 1)
		1944	{
		1945	SV *cb_cv =get_cb (callback);
		1946
1032	SvREFCNT_dec (req->callback);	1947	SvREFCNT_dec (req->callback);
1033	req->callback = newSVsv (callback);	1948	req->callback = SvREFCNT_inc (cb_cv);
		1949	}
		1950	}
1034		1951
1035	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1952	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1036		1953
1037	void	1954	void
1038	add (aio_req grp, ...)	1955	add (aio_req grp, ...)
…		…
1070	AV *av;	1987	AV *av;
1071		1988
1072	grp->errorno = errno;	1989	grp->errorno = errno;
1073		1990
1074	av = newAV ();	1991	av = newAV ();
		1992	av_extend (av, items - 1);
1075		1993
1076	for (i = 1; i < items; ++i )	1994	for (i = 1; i < items; ++i )
1077	av_push (av, newSVsv (ST (i)));	1995	av_push (av, newSVsv (ST (i)));
1078		1996
1079	SvREFCNT_dec (grp->sv1);	1997	SvREFCNT_dec (grp->sv1);
…		…
1093	void	2011	void
1094	feed (aio_req grp, SV *callback=&PL_sv_undef)	2012	feed (aio_req grp, SV *callback=&PL_sv_undef)
1095	CODE:	2013	CODE:
1096	{	2014	{
1097	SvREFCNT_dec (grp->sv2);	2015	SvREFCNT_dec (grp->sv2);
1098	grp->sv2 = newSVsv (callback);	2016	grp->sv2 = newSVsv (callback);
		2017	grp->feed = aio_grp_feed;
1099		2018
1100	if (grp->int2 <= 0)	2019	if (grp->int2 <= 0)
1101	grp->int2 = 2;	2020	grp->int2 = 2;
1102		2021
1103	eio_grp_limit (grp, grp->int2);	2022	eio_grp_limit (grp, grp->int2);

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