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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.115 by root, Sat May 10 18:06:41 2008 UTC vs.
Revision 1.227 by root, Sat Sep 7 23:18:23 2013 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 (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	/*****************************************************************************/
96		261
97	enum {	262	enum {
98	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	263	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
99	};	264	};
100		265
101	#include "libeio/eio.c"
102
103	typedef eio_req *aio_req;	266	typedef eio_req *aio_req;
104	typedef eio_req *aio_req_ornot;	267	typedef eio_req *aio_req_ornot;
		268	typedef eio_wd aio_wd;
105		269
106	static unsigned int max_outstanding = 0x7fffffff;	270	static SV *on_next_submit;
		271	static int next_pri = EIO_PRI_DEFAULT;
		272	static int max_outstanding;
107		273
108	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	274	static s_epipe respipe;
109
110	static int respipe_osf [2], respipe [2] = { -1, -1 };
111		275
112	static void req_destroy (aio_req req);	276	static void req_destroy (aio_req req);
113	static void req_cancel (aio_req req);	277	static void req_cancel (aio_req req);
114		278
115	static void want_poll (void)	279	static void
		280	want_poll (void)
116	{	281	{
117	/* write a dummy byte to the pipe so fh becomes ready */	282	/* write a dummy byte to the pipe so fh becomes ready */
118	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	283	s_epipe_signal (&respipe);
119	}	284	}
120		285
121	static void done_poll (void)	286	static void
		287	done_poll (void)
122	{	288	{
123	/* read any signals sent by the worker threads */	289	/* read any signals sent by the worker threads */
124	char buf [4];	290	s_epipe_drain (&respipe);
125	while (respipe_read (respipe [0], buf, 4) == 4)
126	;
127	}	291	}
128		292
129	/* must be called at most once */	293	/* must be called at most once */
130	static SV *req_sv (aio_req req, const char *klass)	294	static SV *
		295	req_sv (aio_req req, HV *stash)
131	{	296	{
132	if (!req->self)	297	if (!req->self)
133	{	298	{
134	req->self = (SV *)newHV ();	299	req->self = (SV *)newHV ();
135	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	300	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
136	}	301	}
137		302
138	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	303	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
139	}	304	}
140		305
141	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)
142	{	314	{
143	MAGIC *mg;	315	MAGIC *mg;
144		316
145	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")))
146	croak ("object of class " AIO_REQ_KLASS " expected");	322	croak ("object of class IO::AIO::REQ expected");
147		323
148	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	324	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
149		325
150	return mg ? (aio_req)mg->mg_ptr : 0;	326	return mg ? (aio_req)mg->mg_ptr : 0;
151	}	327	}
152		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
153	static void aio_grp_feed (aio_req grp)	341	aio_grp_feed (aio_req grp)
154	{	342	{
155	if (grp->sv2 && SvOK (grp->sv2))	343	if (grp->sv2 && SvOK (grp->sv2))
156	{	344	{
157	dSP;	345	dSP;
158		346
159	ENTER;	347	ENTER;
160	SAVETMPS;	348	SAVETMPS;
161	PUSHMARK (SP);	349	PUSHMARK (SP);
162	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	350	XPUSHs (req_sv (grp, aio_grp_stash));
163	PUTBACK;	351	PUTBACK;
164	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	352	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
165	SPAGAIN;	353	SPAGAIN;
166	FREETMPS;	354	FREETMPS;
167	LEAVE;	355	LEAVE;
168	}	356	}
169	}	357	}
170		358
		359	static void
		360	req_submit (eio_req *req)
		361	{
		362	eio_submit (req);
		363
		364	if (expect_false (on_next_submit))
		365	{
		366	dSP;
		367	SV *cb = sv_2mortal (on_next_submit);
		368
		369	on_next_submit = 0;
		370
		371	PUSHMARK (SP);
		372	PUTBACK;
		373	call_sv (cb, G_DISCARD | G_EVAL);
		374	}
		375	}
		376
		377	static int
171	static int req_invoke (eio_req *req)	378	req_invoke (eio_req *req)
172	{	379	{
173	dSP;
174
175	if (req->flags & FLAG_SV2_RO_OFF)	380	if (req->flags & FLAG_SV2_RO_OFF)
176	SvREADONLY_off (req->sv2);	381	SvREADONLY_off (req->sv2);
177		382
178	if (!EIO_CANCELLED (req) && SvOK (req->callback))	383	if (!EIO_CANCELLED (req) && req->callback)
179	{	384	{
		385	dSP;
		386	static SV *sv_result_cache; /* caches the result integer SV */
		387	SV *sv_result;
		388
180	ENTER;	389	ENTER;
181	SAVETMPS;	390	SAVETMPS;
182	PUSHMARK (SP);	391	PUSHMARK (SP);
183	EXTEND (SP, 1);	392	EXTEND (SP, 1);
184		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
185	switch (req->type)	407	switch (req->type)
186	{	408	{
		409	case EIO_WD_OPEN:
		410	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		411	break;
		412
187	case EIO_READDIR:	413	case EIO_READDIR:
188	{	414	{
189	SV *rv = &PL_sv_undef;	415	SV *rv = &PL_sv_undef;
190		416
191	if (req->result >= 0)	417	if (req->result >= 0)
192	{	418	{
193	int i;	419	int i;
194	char *buf = req->ptr2;	420	char *names = (char *)req->ptr2;
		421	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
195	AV *av = newAV ();	422	AV *av = newAV ();
196		423
197	av_extend (av, req->result - 1);	424	av_extend (av, req->result - 1);
198		425
199	for (i = 0; i < req->result; ++i)	426	for (i = 0; i < req->result; ++i)
200	{	427	{
201	SV *sv = newSVpv (buf, 0);	428	if (req->int1 & EIO_READDIR_DENTS)
		429	{
		430	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
202		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
203	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);
204	buf += SvCUR (sv) + 1;	460	names += SvCUR (name) + 1;
		461	}
205	}	462	}
206		463
207	rv = sv_2mortal (newRV_noinc ((SV *)av));	464	rv = sv_2mortal (newRV_noinc ((SV *)av));
208	}	465	}
209		466
210	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))));
211	}	471	}
212	break;	472	break;
213		473
214	case EIO_OPEN:	474	case EIO_OPEN:
215	{	475	{
…		…
221	GV *gv = (GV *)sv_newmortal ();	481	GV *gv = (GV *)sv_newmortal ();
222	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	482	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
223	char sym [64];	483	char sym [64];
224	int symlen;	484	int symlen;
225		485
226	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	486	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
227	gv_init (gv, stash, sym, symlen, 0);	487	gv_init (gv, aio_stash, sym, symlen, 0);
228		488
229	symlen = snprintf (	489	symlen = snprintf (
230	sym,	490	sym,
231	sizeof (sym),	491	sizeof (sym),
232	"%s&=%d",	492	"%s&=%d",
233	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	493	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
234	req->result	494	(int)req->result
235	);	495	);
236		496
237	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	497	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
238	fh = (SV *)gv;	498	fh = (SV *)gv;
239	}	499	}
240		500
241	PUSHs (fh);	501	PUSHs (fh);
242	}	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
243	break;	540	break;
244		541
245	case EIO_GROUP:	542	case EIO_GROUP:
246	req->int1 = 2; /* mark group as finished */	543	req->int1 = 2; /* mark group as finished */
247		544
…		…
259	case EIO_NOP:	556	case EIO_NOP:
260	case EIO_BUSY:	557	case EIO_BUSY:
261	break;	558	break;
262		559
263	case EIO_READLINK:	560	case EIO_READLINK:
		561	case EIO_REALPATH:
264	if (req->result > 0)	562	if (req->result > 0)
265	{	563	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;	564	break;
271		565
272	case EIO_STAT:	566	case EIO_STAT:
273	case EIO_LSTAT:	567	case EIO_LSTAT:
274	case EIO_FSTAT:	568	case EIO_FSTAT:
275	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	569	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		570
276	PL_laststatval = req->result;	571	if (!(PL_laststatval = req->result))
		572	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
277	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	573	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
278	PUSHs (sv_2mortal (newSViv (req->result)));	574
		575	PUSHs (sv_result);
279	break;	576	break;
280		577
		578	case EIO_SEEK:
		579	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
		580	break;
		581
281	case EIO_READ:	582	case EIO_READ:
		583	{
282	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));
283	*SvEND (req->sv2) = 0;	585	*SvEND (req->sv2) = 0;
284	PUSHs (sv_2mortal (newSViv (req->result)));	586	SvPOK_only (req->sv2);
		587	SvSETMAGIC (req->sv2);
		588	PUSHs (sv_result);
		589	}
285	break;	590	break;
286		591
287	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 */
288	if (req->result > 0)	633	if (req->result > 0)
289	req->result = 0;	634	SvIV_set (sv_result, 0);
290	/* FALLTHROUGH */	635	/* FALLTHROUGH */
291		636
292	default:	637	default:
293	PUSHs (sv_2mortal (newSViv (req->result)));	638	PUSHs (sv_result);
294	break;	639	break;
295	}	640	}
296		641
297	errno = req->errorno;	642	errno = req->errorno;
298		643
299	PUTBACK;	644	PUTBACK;
300	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	645	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
301	SPAGAIN;	646	SPAGAIN;
302		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
303	FREETMPS;	653	FREETMPS;
304	LEAVE;	654	LEAVE;
305		655
306	PUTBACK;	656	PUTBACK;
307	}	657	}
308		658
309	return !!SvTRUE (ERRSV);	659	return !!SvTRUE (ERRSV);
310	}	660	}
311		661
		662	static void
312	static void req_destroy (aio_req req)	663	req_destroy (aio_req req)
313	{	664	{
314	if (req->self)	665	if (req->self)
315	{	666	{
316	sv_unmagic (req->self, PERL_MAGIC_ext);	667	sv_unmagic (req->self, PERL_MAGIC_ext);
317	SvREFCNT_dec (req->self);	668	SvREFCNT_dec (req->self);
318	}	669	}
319		670
320	SvREFCNT_dec (req->sv1);	671	SvREFCNT_dec (req->sv1);
321	SvREFCNT_dec (req->sv2);	672	SvREFCNT_dec (req->sv2);
		673	SvREFCNT_dec (req->sv3);
		674	SvREFCNT_dec (req->sv4);
322	SvREFCNT_dec (req->callback);	675	SvREFCNT_dec (req->callback);
323		676
324	Safefree (req);	677	free (req);
325	}	678	}
326		679
		680	static void
327	static void req_cancel_subs (aio_req grp)	681	req_cancel_subs (aio_req grp)
328	{	682	{
329	aio_req sub;
330
331	if (grp->type != EIO_GROUP)	683	if (grp->type != EIO_GROUP)
332	return;	684	return;
333		685
334	SvREFCNT_dec (grp->sv2);	686	SvREFCNT_dec (grp->sv2);
335	grp->sv2 = 0;	687	grp->sv2 = 0;
336		688
337	eio_grp_cancel (grp);	689	eio_grp_cancel (grp);
338	}	690	}
339		691
340	#ifdef USE_SOCKETS_AS_HANDLES	692	static void ecb_cold
341	# define TO_SOCKET(x) (win32_get_osfhandle (x))	693	create_respipe (void)
342	#else	694	{
343	# define TO_SOCKET(x) (x)	695	if (s_epipe_renew (&respipe))
344	#endif	696	croak ("IO::AIO: unable to initialize result pipe");
		697	}
345		698
346	static void	699	static void
347	create_respipe (void)	700	poll_wait (void)
348	{	701	{
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 ())	702	while (eio_nreqs ())
389	{	703	{
390	int size;	704	int size;
391		705
392	X_LOCK (reslock);	706	X_LOCK (reslock);
…		…
394	X_UNLOCK (reslock);	708	X_UNLOCK (reslock);
395		709
396	if (size)	710	if (size)
397	return;	711	return;
398		712
399	maybe_start_thread ();	713	etp_maybe_start_thread ();
400		714
401	FD_ZERO (&rfd);	715	s_epipe_wait (&respipe);
402	FD_SET (respipe [0], &rfd);
403
404	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
405	}	716	}
406	}	717	}
407		718
408	static int poll_cb (void)	719	static int
		720	poll_cb (void)
409	{	721	{
		722	for (;;)
		723	{
410	int res = eio_poll ();	724	int res = eio_poll ();
411		725
412	if (res > 0)	726	if (res > 0)
413	croak (0);	727	croak (0);
414		728
		729	if (!max_outstanding || max_outstanding > eio_nreqs ())
		730	return res;
		731
		732	poll_wait ();
		733	}
		734	}
		735
		736	static void ecb_cold
		737	reinit (void)
		738	{
		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
415	return res;	814	return req;
416	}	815	}
417		816
418	#define dREQ \	817	#define dREQ \
419	aio_req req; \	818	aio_req req = dreq (callback); \
420	int req_pri = next_pri; \
421	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \
422	\
423	if (SvOK (callback) && !SvROK (callback)) \
424	croak ("callback must be undef or of reference type"); \
425	\
426	Newz (0, req, 1, eio_req); \
427	if (!req) \
428	croak ("out of memory during eio_req allocation"); \
429	\
430	req->callback = newSVsv (callback); \
431	req->pri = req_pri
432		819
433	#define REQ_SEND \	820	#define REQ_SEND \
		821	PUTBACK; \
434	eio_submit (req); \	822	req_submit (req); \
		823	SPAGAIN; \
435	\	824	\
436	if (GIMME_V != G_VOID) \	825	if (GIMME_V != G_VOID) \
437	XPUSHs (req_sv (req, AIO_REQ_KLASS));	826	XPUSHs (req_sv (req, aio_req_stash));
438		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
439	MODULE = IO::AIO PACKAGE = IO::AIO	894	MODULE = IO::AIO PACKAGE = IO::AIO
440		895
441	PROTOTYPES: ENABLE	896	PROTOTYPES: ENABLE
442		897
443	BOOT:	898	BOOT:
444	{	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
445	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);
446		1055
447	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	1056	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
448	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	1057	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
449	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
450	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
451	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
452	#ifdef _WIN32
453	X_MUTEX_CHECK (wrklock);
454	X_MUTEX_CHECK (reslock);
455	X_MUTEX_CHECK (reqlock);
456	X_MUTEX_CHECK (reqwait);
457	X_MUTEX_CHECK (preadwritelock);
458	X_MUTEX_CHECK (readdirlock);
459		1058
460	X_COND_CHECK (reqwait);	1059	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
461	#else
462	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
463	#endif
464		1060
465	create_respipe ();	1061	reinit ();
466
467	if (eio_init (want_poll, done_poll) < 0)
468	croak ("IO::AIO: unable to initialise eio library");
469	}	1062	}
470		1063
471	void	1064	void
		1065	reinit ()
		1066	PROTOTYPE:
		1067
		1068	void
472	max_poll_reqs (int nreqs)	1069	max_poll_reqs (unsigned int nreqs)
473	PROTOTYPE: $	1070	PROTOTYPE: $
474	CODE:	1071	CODE:
475	eio_set_max_poll_reqs (nreqs);	1072	eio_set_max_poll_reqs (nreqs);
476		1073
477	void	1074	void
…		…
479	PROTOTYPE: $	1076	PROTOTYPE: $
480	CODE:	1077	CODE:
481	eio_set_max_poll_time (nseconds);	1078	eio_set_max_poll_time (nseconds);
482		1079
483	void	1080	void
484	min_parallel (int nthreads)	1081	min_parallel (unsigned int nthreads)
485	PROTOTYPE: $	1082	PROTOTYPE: $
486	CODE:	1083	CODE:
487	eio_set_min_parallel (nthreads);	1084	eio_set_min_parallel (nthreads);
488		1085
489	void	1086	void
490	max_parallel (int nthreads)	1087	max_parallel (unsigned int nthreads)
491	PROTOTYPE: $	1088	PROTOTYPE: $
492	CODE:	1089	CODE:
493	eio_set_max_parallel (nthreads);	1090	eio_set_max_parallel (nthreads);
494		1091
495	void	1092	void
496	max_idle (int nthreads)	1093	max_idle (unsigned int nthreads)
497	PROTOTYPE: $	1094	PROTOTYPE: $
498	CODE:	1095	CODE:
499	eio_set_max_idle (nthreads);	1096	eio_set_max_idle (nthreads);
500		1097
501	void	1098	void
		1099	idle_timeout (unsigned int seconds)
		1100	PROTOTYPE: $
		1101	CODE:
		1102	eio_set_idle_timeout (seconds);
		1103
		1104	void
502	max_outstanding (int maxreqs)	1105	max_outstanding (unsigned int maxreqs)
503	PROTOTYPE: $	1106	PROTOTYPE: $
504	CODE:	1107	CODE:
505	max_outstanding = maxreqs;	1108	max_outstanding = maxreqs;
506		1109
507	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
508	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)
509	PROTOTYPE: $$$;$
510	PPCODE:	1124	PPCODE:
511	{	1125	{
512	dREQ;	1126	dREQ;
513		1127
514	req->type = EIO_OPEN;	1128	req->type = EIO_OPEN;
515	req->sv1 = newSVsv (pathname);	1129	req_set_path1 (req, pathname);
516	req->ptr1 = SvPVbyte_nolen (req->sv1);
517	req->int1 = flags;	1130	req->int1 = flags;
518	req->int2 = mode;	1131	req->int2 = mode;
519		1132
520	REQ_SEND;	1133	REQ_SEND;
521	}	1134	}
522		1135
523	void	1136	void
524	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1137	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
525	PROTOTYPE: $;$
526	ALIAS:	1138	ALIAS:
527	aio_fsync = EIO_FSYNC	1139	aio_fsync = EIO_FSYNC
528	aio_fdatasync = EIO_FDATASYNC	1140	aio_fdatasync = EIO_FDATASYNC
		1141	aio_syncfs = EIO_SYNCFS
529	PPCODE:	1142	PPCODE:
530	{	1143	{
		1144	int fd = s_fileno_croak (fh, 0);
531	dREQ;	1145	dREQ;
532		1146
533	req->type = ix;	1147	req->type = ix;
534	req->sv1 = newSVsv (fh);	1148	req->sv1 = newSVsv (fh);
535	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1149	req->int1 = fd;
536		1150
537	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;
538	}	1186	}
539		1187
540	void	1188	void
541	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1189	aio_close (SV *fh, SV *callback=&PL_sv_undef)
542	PROTOTYPE: $;$
543	PPCODE:	1190	PPCODE:
544	{	1191	{
545	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);
546	dREQ;	1194	dREQ;
547		1195
548	if (close_pipe < 0)	1196	if (expect_false (close_fd < 0))
549	{	1197	{
550	int pipefd [2];	1198	int pipefd [2];
551		1199
		1200	if (
		1201	#ifdef _WIN32
		1202	_pipe (pipefd, 1, _O_BINARY) < 0
		1203	#else
552	if (pipe (pipefd) < 0	1204	pipe (pipefd) < 0
553	|| close (pipefd [1]) < 0
554	|| 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	)
555	abort (); /*D*/	1209	abort (); /*D*/
556		1210
557	close_pipe = pipefd [0];	1211	close_fd = pipefd [0];
558	}	1212	}
559		1213
560	req->type = EIO_DUP2;	1214	req->type = EIO_DUP2;
561	req->int1 = close_pipe;	1215	req->int1 = close_fd;
562	req->sv2 = newSVsv (fh);	1216	req->sv2 = newSVsv (fh);
563	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1217	req->int2 = fd;
564		1218
565	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;
566	}	1236	}
567		1237
568	void	1238	void
569	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)
570	ALIAS:	1240	ALIAS:
571	aio_read = EIO_READ	1241	aio_read = EIO_READ
572	aio_write = EIO_WRITE	1242	aio_write = EIO_WRITE
573	PROTOTYPE: $$$$$;$
574	PPCODE:	1243	PPCODE:
575	{	1244	{
576	STRLEN svlen;	1245	STRLEN svlen;
		1246	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
577	char *svptr = SvPVbyte (data, svlen);	1247	char *svptr = SvPVbyte (data, svlen);
578	UV len = SvUV (length);	1248	UV len = SvUV (length);
579
580	SvUPGRADE (data, SVt_PV);
581	SvPOK_on (data);
582		1249
583	if (dataoffset < 0)	1250	if (dataoffset < 0)
584	dataoffset += svlen;	1251	dataoffset += svlen;
585		1252
586	if (dataoffset < 0 || dataoffset > svlen)	1253	if (dataoffset < 0 || dataoffset > svlen)
…		…
592	if (!SvOK (length) || len + dataoffset > svlen)	1259	if (!SvOK (length) || len + dataoffset > svlen)
593	len = svlen - dataoffset;	1260	len = svlen - dataoffset;
594	}	1261	}
595	else	1262	else
596	{	1263	{
597	/* 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))
598	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");
599	}	1270	}
600
601	if (len < 0)
602	croak ("length must not be negative");
603		1271
604	{	1272	{
605	dREQ;	1273	dREQ;
606		1274
607	req->type = ix;	1275	req->type = ix;
608	req->sv1 = newSVsv (fh);	1276	req->sv1 = newSVsv (fh);
609	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1277	req->int1 = fd;
610	: IoOFP (sv_2io (fh)));
611	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1278	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
612	req->size = len;	1279	req->size = len;
613	req->sv2 = SvREFCNT_inc (data);	1280	req->sv2 = SvREFCNT_inc (data);
614	req->ptr2 = (char *)svptr + dataoffset;	1281	req->ptr2 = (char *)svptr + dataoffset;
615	req->stroffset = dataoffset;	1282	req->stroffset = dataoffset;
…		…
623	REQ_SEND;	1290	REQ_SEND;
624	}	1291	}
625	}	1292	}
626		1293
627	void	1294	void
628	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1295	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
629	PROTOTYPE: $$;$	1296	ALIAS:
		1297	aio_readlink = EIO_READLINK
		1298	aio_realpath = EIO_REALPATH
630	PPCODE:	1299	PPCODE:
631	{	1300	{
632	SV *data;
633	dREQ;	1301	dREQ;
634		1302
635	data = newSV (NAME_MAX);
636	SvPOK_on (data);
637
638	req->type = EIO_READLINK;	1303	req->type = ix;
639	req->sv1 = newSVsv (path);	1304	req_set_path1 (req, pathname);
640	req->ptr1 = SvPVbyte_nolen (req->sv1);
641	req->sv2 = data;
642	req->ptr2 = SvPVbyte_nolen (data);
643		1305
644	REQ_SEND;	1306	REQ_SEND;
645	}	1307	}
646		1308
647	void	1309	void
648	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)
649	PROTOTYPE: $$$$;$
650	PPCODE:	1311	PPCODE:
651	{	1312	{
		1313	int ifd = s_fileno_croak (in_fh , 0);
		1314	int ofd = s_fileno_croak (out_fh, 1);
652	dREQ;	1315	dREQ;
653		1316
654	req->type = EIO_SENDFILE;	1317	req->type = EIO_SENDFILE;
655	req->sv1 = newSVsv (out_fh);	1318	req->sv1 = newSVsv (out_fh);
656	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1319	req->int1 = ofd;
657	req->sv2 = newSVsv (in_fh);	1320	req->sv2 = newSVsv (in_fh);
658	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1321	req->int2 = ifd;
659	req->offs = SvVAL64 (in_offset);	1322	req->offs = in_offset;
660	req->size = length;	1323	req->size = length;
661		1324
662	REQ_SEND;	1325	REQ_SEND;
663	}	1326	}
664		1327
665	void	1328	void
666	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1329	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
667	PROTOTYPE: $$$;$
668	PPCODE:	1330	PPCODE:
669	{	1331	{
		1332	int fd = s_fileno_croak (fh, 0);
670	dREQ;	1333	dREQ;
671		1334
672	req->type = EIO_READAHEAD;	1335	req->type = EIO_READAHEAD;
673	req->sv1 = newSVsv (fh);	1336	req->sv1 = newSVsv (fh);
674	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1337	req->int1 = fd;
675	req->offs = SvVAL64 (offset);	1338	req->offs = offset;
676	req->size = length;	1339	req->size = length;
677		1340
678	REQ_SEND;	1341	REQ_SEND;
679	}	1342	}
680		1343
681	void	1344	void
682	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1345	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
683	ALIAS:	1346	ALIAS:
684	aio_stat = EIO_STAT	1347	aio_stat = EIO_STAT
685	aio_lstat = EIO_LSTAT	1348	aio_lstat = EIO_LSTAT
		1349	aio_statvfs = EIO_STATVFS
686	PPCODE:	1350	PPCODE:
687	{	1351	{
688	dREQ;	1352	dREQ;
689		1353
690	req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));	1354	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
691	if (!req->ptr2)
692	{
693	req_destroy (req);
694	croak ("out of memory during aio_stat statdata allocation");
695	}
696
697	req->flags |= EIO_FLAG_PTR2_FREE;
698	req->sv1 = newSVsv (fh_or_path);
699
700	if (SvPOK (fh_or_path))
701	{
702	req->type = ix;
703	req->ptr1 = SvPVbyte_nolen (req->sv1);
704	}
705	else
706	{
707	req->type = EIO_FSTAT;
708	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
709	}
710		1355
711	REQ_SEND;	1356	REQ_SEND;
712	}	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
713		1374
714	void	1375	void
715	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)
716	PPCODE:	1377	PPCODE:
717	{	1378	{
718	dREQ;	1379	dREQ;
719		1380
720	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1381	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
721	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1382	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
722	req->sv1 = newSVsv (fh_or_path);	1383	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
723
724	if (SvPOK (fh_or_path))
725	{
726	req->type = EIO_UTIME;
727	req->ptr1 = SvPVbyte_nolen (req->sv1);
728	}
729	else
730	{
731	req->type = EIO_FUTIME;
732	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
733	}
734		1384
735	REQ_SEND;	1385	REQ_SEND;
736	}	1386	}
737		1387
738	void	1388	void
739	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)
740	PPCODE:	1390	PPCODE:
741	{	1391	{
742	dREQ;	1392	dREQ;
743		1393
744	req->sv1 = newSVsv (fh_or_path);
745	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1394	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
746		1395	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
747	if (SvPOK (fh_or_path))
748	{
749	req->type = EIO_TRUNCATE;
750	req->ptr1 = SvPVbyte_nolen (req->sv1);
751	}
752	else
753	{
754	req->type = EIO_FTRUNCATE;
755	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
756	}
757		1396
758	REQ_SEND;	1397	REQ_SEND;
759	}	1398	}
760		1399
761	void	1400	void
762	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)
763	ALIAS:
764	aio_chmod = EIO_CHMOD
765	aio_fchmod = EIO_FCHMOD
766	aio_mkdir = EIO_MKDIR
767	PPCODE:	1402	PPCODE:
768	{	1403	{
769	dREQ;	1404	dREQ;
770		1405
771	req->type = ix;
772	req->int2 = mode;	1406	req->int2 = mode;
773	req->sv1 = newSVsv (fh_or_path);	1407	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
774
775	if (ix == EIO_FCHMOD)
776	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
777	else
778	req->ptr1 = SvPVbyte_nolen (req->sv1);
779		1408
780	REQ_SEND;	1409	REQ_SEND;
781	}	1410	}
782		1411
783	void	1412	void
…		…
786	{	1415	{
787	dREQ;	1416	dREQ;
788		1417
789	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1418	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
790	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1419	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
791	req->sv1 = newSVsv (fh_or_path);	1420	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
792		1421
793	if (SvPOK (fh_or_path))	1422	REQ_SEND;
794	{	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
795	req->type = EIO_CHOWN;	1448	req->type = EIO_MKDIR;
796	req->ptr1 = SvPVbyte_nolen (req->sv1);	1449	req->int2 = mode;
797	}	1450	req_set_path1 (req, pathname);
798	else
799	{
800	req->type = EIO_FCHOWN;
801	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
802	}
803		1451
804	REQ_SEND;	1452	REQ_SEND;
805	}	1453	}
806		1454
807	void	1455	void
…		…
813	PPCODE:	1461	PPCODE:
814	{	1462	{
815	dREQ;	1463	dREQ;
816		1464
817	req->type = ix;	1465	req->type = ix;
818	req->sv1 = newSVsv (pathname);	1466	req_set_path1 (req, pathname);
819	req->ptr1 = SvPVbyte_nolen (req->sv1);
820		1467
821	REQ_SEND;	1468	REQ_SEND;
822	}	1469	}
823		1470
824	void	1471	void
…		…
827	aio_link = EIO_LINK	1474	aio_link = EIO_LINK
828	aio_symlink = EIO_SYMLINK	1475	aio_symlink = EIO_SYMLINK
829	aio_rename = EIO_RENAME	1476	aio_rename = EIO_RENAME
830	PPCODE:	1477	PPCODE:
831	{	1478	{
		1479	eio_wd wd2 = 0;
832	dREQ;	1480	dREQ;
833		1481
834	req->type = ix;	1482	req->type = ix;
835	req->sv1 = newSVsv (oldpath);	1483	req_set_path1 (req, oldpath);
836	req->ptr1 = SvPVbyte_nolen (req->sv1);	1484	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
837	req->sv2 = newSVsv (newpath);	1485	req->int3 = (long)wd2;
838	req->ptr2 = SvPVbyte_nolen (req->sv2);
839		1486
840	REQ_SEND;	1487	REQ_SEND;
841	}	1488	}
842		1489
843	void	1490	void
…		…
845	PPCODE:	1492	PPCODE:
846	{	1493	{
847	dREQ;	1494	dREQ;
848		1495
849	req->type = EIO_MKNOD;	1496	req->type = EIO_MKNOD;
850	req->sv1 = newSVsv (pathname);
851	req->ptr1 = SvPVbyte_nolen (req->sv1);
852	req->int2 = (mode_t)mode;	1497	req->int2 = (mode_t)mode;
853	req->offs = dev;	1498	req->offs = dev;
		1499	req_set_path1 (req, pathname);
854		1500
855	REQ_SEND;	1501	REQ_SEND;
856	}	1502	}
857		1503
858	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
859	aio_busy (double delay, SV *callback=&PL_sv_undef)	1602	aio_busy (double delay, SV *callback=&PL_sv_undef)
860	PPCODE:	1603	PPCODE:
861	{	1604	{
862	dREQ;	1605	dREQ;
863		1606
…		…
867	REQ_SEND;	1610	REQ_SEND;
868	}	1611	}
869		1612
870	void	1613	void
871	aio_group (SV *callback=&PL_sv_undef)	1614	aio_group (SV *callback=&PL_sv_undef)
872	PROTOTYPE: ;$
873	PPCODE:	1615	PPCODE:
874	{	1616	{
875	dREQ;	1617	dREQ;
876		1618
877	req->type = EIO_GROUP;	1619	req->type = EIO_GROUP;
878		1620
879	eio_submit (req);	1621	req_submit (req);
880	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1622	XPUSHs (req_sv (req, aio_grp_stash));
881	}	1623	}
882		1624
883	void	1625	void
884	aio_nop (SV *callback=&PL_sv_undef)	1626	aio_nop (SV *callback=&PL_sv_undef)
885	ALIAS:	1627	ALIAS:
…		…
894	REQ_SEND;	1636	REQ_SEND;
895	}	1637	}
896		1638
897	int	1639	int
898	aioreq_pri (int pri = 0)	1640	aioreq_pri (int pri = 0)
899	PROTOTYPE: ;$
900	CODE:	1641	CODE:
901	RETVAL = next_pri - EIO_PRI_BIAS;	1642	RETVAL = next_pri;
902	if (items > 0)	1643	if (items > 0)
903	{	1644	{
904	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1645	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
905	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1646	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
906	next_pri = pri + EIO_PRI_BIAS;	1647	next_pri = pri;
907	}	1648	}
908	OUTPUT:	1649	OUTPUT:
909	RETVAL	1650	RETVAL
910		1651
911	void	1652	void
912	aioreq_nice (int nice = 0)	1653	aioreq_nice (int nice = 0)
913	CODE:	1654	CODE:
914	nice = next_pri - nice;	1655	nice = next_pri - nice;
915	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1656	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
916	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1657	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
917	next_pri = nice + EIO_PRI_BIAS;	1658	next_pri = nice;
918		1659
919	void	1660	void
920	flush ()	1661	flush ()
921	PROTOTYPE:
922	CODE:	1662	CODE:
923	while (nreqs)	1663	while (eio_nreqs ())
924	{	1664	{
925	poll_wait ();	1665	poll_wait ();
926	poll_cb ();	1666	poll_cb ();
927	}	1667	}
928		1668
929	int	1669	int
930	poll()	1670	poll ()
931	PROTOTYPE:
932	CODE:	1671	CODE:
933	poll_wait ();	1672	poll_wait ();
934	RETVAL = poll_cb ();	1673	RETVAL = poll_cb ();
935	OUTPUT:	1674	OUTPUT:
936	RETVAL	1675	RETVAL
937		1676
938	int	1677	int
939	poll_fileno()	1678	poll_fileno ()
940	PROTOTYPE:
941	CODE:	1679	CODE:
942	RETVAL = respipe [0];	1680	RETVAL = s_epipe_fd (&respipe);
943	OUTPUT:	1681	OUTPUT:
944	RETVAL	1682	RETVAL
945		1683
946	int	1684	int
947	poll_cb(...)	1685	poll_cb (...)
948	PROTOTYPE:	1686	PROTOTYPE:
949	CODE:	1687	CODE:
950	RETVAL = poll_cb ();	1688	RETVAL = poll_cb ();
951	OUTPUT:	1689	OUTPUT:
952	RETVAL	1690	RETVAL
953		1691
954	void	1692	void
955	poll_wait()	1693	poll_wait ()
956	PROTOTYPE:
957	CODE:	1694	CODE:
958	poll_wait ();	1695	poll_wait ();
959		1696
960	int	1697	int
961	nreqs()	1698	nreqs ()
962	PROTOTYPE:
963	CODE:	1699	CODE:
964	RETVAL = eio_nreqs ();	1700	RETVAL = eio_nreqs ();
965	OUTPUT:	1701	OUTPUT:
966	RETVAL	1702	RETVAL
967		1703
968	int	1704	int
969	nready()	1705	nready ()
970	PROTOTYPE:
971	CODE:	1706	CODE:
972	RETVAL = eio_nready ();	1707	RETVAL = eio_nready ();
973	OUTPUT:	1708	OUTPUT:
974	RETVAL	1709	RETVAL
975		1710
976	int	1711	int
977	npending()	1712	npending ()
978	PROTOTYPE:
979	CODE:	1713	CODE:
980	RETVAL = eio_npending ();	1714	RETVAL = eio_npending ();
981	OUTPUT:	1715	OUTPUT:
982	RETVAL	1716	RETVAL
983		1717
984	int	1718	int
985	nthreads()	1719	nthreads ()
986	PROTOTYPE:
987	CODE:	1720	CODE:
988	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1721	RETVAL = eio_nthreads ();
989	RETVAL = started;
990	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
991	OUTPUT:	1722	OUTPUT:
992	RETVAL	1723	RETVAL
993		1724
		1725	int
		1726	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1727	CODE:
		1728	RETVAL = posix_fadvise (fh, offset, length, advice);
		1729	OUTPUT:
		1730	RETVAL
		1731
		1732	IV
		1733	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1734	CODE:
		1735	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1736	OUTPUT:
		1737	RETVAL
		1738
		1739	void
		1740	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1741	PPCODE:
		1742	sv_unmagic (scalar, MMAP_MAGIC);
		1743	{
		1744	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1745	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1746	if (addr == (void *)-1)
		1747	XSRETURN_NO;
		1748
		1749	sv_force_normal (scalar);
		1750
		1751	/* we store the length in mg_obj, as namlen is I32 :/ */
		1752	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1753	->mg_obj = (SV *)length;
		1754
		1755	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1756
		1757	if (!(prot & PROT_WRITE))
		1758	SvREADONLY_on (scalar);
		1759
		1760	if (SvLEN (scalar))
		1761	Safefree (SvPVX (scalar));
		1762
		1763	SvPVX (scalar) = (char *)addr;
		1764	SvCUR_set (scalar, length);
		1765	SvLEN_set (scalar, 0);
		1766	SvPOK_only (scalar);
		1767
		1768	XSRETURN_YES;
		1769	}
		1770
		1771	void
		1772	munmap (SV *scalar)
		1773	CODE:
		1774	sv_unmagic (scalar, MMAP_MAGIC);
		1775
		1776	int
		1777	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1778	ALIAS:
		1779	mprotect = 1
		1780	CODE:
		1781	{
		1782	STRLEN svlen;
		1783	void *addr = SvPVbyte (scalar, svlen);
		1784	size_t len = SvUV (length);
		1785
		1786	if (offset < 0)
		1787	offset += svlen;
		1788
		1789	if (offset < 0 || offset > svlen)
		1790	croak ("offset outside of scalar");
		1791
		1792	if (!SvOK (length) || len + offset > svlen)
		1793	len = svlen - offset;
		1794
		1795	addr = (void *)(((intptr_t)addr) + offset);
		1796	eio_page_align (&addr, &len);
		1797
		1798	switch (ix)
		1799	{
		1800	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1801	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1802	}
		1803	}
		1804	OUTPUT:
		1805	RETVAL
		1806
		1807	int
		1808	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1809	CODE:
		1810	{
		1811	STRLEN svlen;
		1812	void *addr = SvPVbyte (scalar, svlen);
		1813	size_t len = SvUV (length);
		1814
		1815	if (offset < 0)
		1816	offset += svlen;
		1817
		1818	if (offset < 0 || offset > svlen)
		1819	croak ("offset outside of scalar");
		1820
		1821	if (!SvOK (length) || len + offset > svlen)
		1822	len = svlen - offset;
		1823
		1824	addr = (void *)(((intptr_t)addr) + offset);
		1825	eio_page_align (&addr, &len);
		1826	#if _POSIX_MEMLOCK_RANGE
		1827	RETVAL = munlock (addr, len);
		1828	#else
		1829	RETVAL = EIO_ENOSYS ();
		1830	#endif
		1831	}
		1832	OUTPUT:
		1833	RETVAL
		1834
		1835	int
		1836	munlockall ()
		1837	CODE:
		1838	#if _POSIX_MEMLOCK
		1839	munlockall ();
		1840	#else
		1841	RETVAL = EIO_ENOSYS ();
		1842	#endif
		1843	OUTPUT:
		1844	RETVAL
		1845
		1846	int
		1847	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1848	CODE:
		1849	{
		1850	#if HAVE_LINUX_SPLICE
		1851	loff_t off_in_, off_out_;
		1852	RETVAL = splice (
		1853	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1854	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1855	length, flags
		1856	);
		1857	#else
		1858	RETVAL = EIO_ENOSYS ();
		1859	#endif
		1860	}
		1861	OUTPUT:
		1862	RETVAL
		1863
		1864	int
		1865	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1866	CODE:
		1867	#if HAVE_LINUX_SPLICE
		1868	RETVAL = tee (rfh, wfh, length, flags);
		1869	#else
		1870	RETVAL = EIO_ENOSYS ();
		1871	#endif
		1872	OUTPUT:
		1873	RETVAL
		1874
		1875	int
		1876	pipesize (aio_rfd rfh, int new_size = -1)
		1877	PROTOTYPE: $;$
		1878	CODE:
		1879	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		1880	if (new_size >= 0)
		1881	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		1882	else
		1883	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		1884	#else
		1885	errno = ENOSYS;
		1886	RETVAL = -1;
		1887	#endif
		1888	OUTPUT:
		1889	RETVAL
		1890
		1891	void _on_next_submit (SV *cb)
		1892	CODE:
		1893	SvREFCNT_dec (on_next_submit);
		1894	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
		1895
994	PROTOTYPES: DISABLE	1896	PROTOTYPES: DISABLE
		1897
		1898	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1899
		1900	BOOT:
		1901	{
		1902	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1903	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1904	}
		1905
		1906	void
		1907	DESTROY (SV *self)
		1908	CODE:
		1909	{
		1910	aio_wd wd = SvAIO_WD (self);
		1911	#if HAVE_AT
		1912	{
		1913	SV *callback = &PL_sv_undef;
		1914	dREQ; /* clobbers next_pri :/ */
		1915	next_pri = req->pri; /* restore next_pri */
		1916	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1917	req->type = EIO_WD_CLOSE;
		1918	req->wd = wd;
		1919	REQ_SEND;
		1920	}
		1921	#else
		1922	eio_wd_close_sync (wd);
		1923	#endif
		1924	}
995		1925
996	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1926	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
997		1927
998	void	1928	void
999	cancel (aio_req_ornot req)	1929	cancel (aio_req_ornot req)
1000	CODE:	1930	CODE:
1001	eio_cancel (req);	1931	eio_cancel (req);
1002		1932
1003	void	1933	void
1004	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1934	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1005	CODE:	1935	PPCODE:
		1936	{
		1937	if (GIMME_V != G_VOID)
		1938	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1939
		1940	if (items > 1)
		1941	{
		1942	SV *cb_cv =get_cb (callback);
		1943
1006	SvREFCNT_dec (req->callback);	1944	SvREFCNT_dec (req->callback);
1007	req->callback = newSVsv (callback);	1945	req->callback = SvREFCNT_inc (cb_cv);
		1946	}
		1947	}
1008		1948
1009	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1949	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1010		1950
1011	void	1951	void
1012	add (aio_req grp, ...)	1952	add (aio_req grp, ...)
…		…
1044	AV *av;	1984	AV *av;
1045		1985
1046	grp->errorno = errno;	1986	grp->errorno = errno;
1047		1987
1048	av = newAV ();	1988	av = newAV ();
		1989	av_extend (av, items - 1);
1049		1990
1050	for (i = 1; i < items; ++i )	1991	for (i = 1; i < items; ++i )
1051	av_push (av, newSVsv (ST (i)));	1992	av_push (av, newSVsv (ST (i)));
1052		1993
1053	SvREFCNT_dec (grp->sv1);	1994	SvREFCNT_dec (grp->sv1);
…		…
1067	void	2008	void
1068	feed (aio_req grp, SV *callback=&PL_sv_undef)	2009	feed (aio_req grp, SV *callback=&PL_sv_undef)
1069	CODE:	2010	CODE:
1070	{	2011	{
1071	SvREFCNT_dec (grp->sv2);	2012	SvREFCNT_dec (grp->sv2);
1072	grp->sv2 = newSVsv (callback);	2013	grp->sv2 = newSVsv (callback);
		2014	grp->feed = aio_grp_feed;
1073		2015
1074	if (grp->int2 <= 0)	2016	if (grp->int2 <= 0)
1075	grp->int2 = 2;	2017	grp->int2 = 2;
1076		2018
1077	eio_grp_limit (grp, grp->int2);	2019	eio_grp_limit (grp, grp->int2);

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