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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.156 by root, Thu Nov 12 00:01:52 2009 UTC vs.
Revision 1.210 by root, Fri Apr 6 11:39:25 2012 UTC

…		…
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <limits.h>	16	#include <limits.h>
17	#include <fcntl.h>	17	#include <fcntl.h>
18	#include <sched.h>	18	#include <sched.h>
19		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/fiemap.h>
		28	# define HAVE_FIEMAP 1
		29	# endif
		30	#endif
		31
20	/* perl namespace pollution */	32	/* perl namespace pollution */
21	#undef VERSION	33	#undef VERSION
22
23	#ifdef _WIN32
24
25	# define EIO_STRUCT_DIRENT Direntry_t
26	# undef malloc
27	# undef free
28
29	// perl overrides all those nice win32 functions
30	# undef open
31	# undef read
32	# undef write
33	# undef send
34	# undef recv
35	# undef stat
36	# undef fstat
37	# define lstat stat
38	# undef truncate
39	# undef ftruncate
40	# undef open
41	# undef close
42	# undef unlink
43	# undef rmdir
44	# undef rename
45	# undef lseek
46
47	# define chown(a,b,c) (errno = ENOSYS, -1)
48	# define fchown(a,b,c) (errno = ENOSYS, -1)
49	# define fchmod(a,b) (errno = ENOSYS, -1)
50	# define symlink(a,b) (errno = ENOSYS, -1)
51	# define readlink(a,b,c) (errno = ENOSYS, -1)
52	# define mknod(a,b,c) (errno = ENOSYS, -1)
53	# define truncate(a,b) (errno = ENOSYS, -1)
54	# define ftruncate(fd,o) chsize ((fd), (o))
55	# define fsync(fd) _commit (fd)
56	# define opendir(fd) (errno = ENOSYS, 0)
57	# define readdir(fd) (errno = ENOSYS, -1)
58	# define closedir(fd) (errno = ENOSYS, -1)
59	# define mkdir(a,b) mkdir (a)
60
61	#else
62
63	# include <sys/time.h>
64	# include <sys/select.h>
65	# include <unistd.h>
66	# include <utime.h>
67	# include <signal.h>
68	# define EIO_STRUCT_DIRENT struct dirent
69
70	#endif
71		34
72	/* perl stupidly overrides readdir and maybe others */	35	/* perl stupidly overrides readdir and maybe others */
73	/* with thread-unsafe versions, imagine that :( */	36	/* with thread-unsafe versions, imagine that :( */
74	#undef readdir	37	#undef readdir
75	#undef opendir	38	#undef opendir
76	#undef closedir	39	#undef closedir
77		40
		41	#ifdef _WIN32
		42
		43	// perl overrides all those nice libc functions
		44
		45	#undef malloc
		46	#undef free
		47	#undef open
		48	#undef read
		49	#undef write
		50	#undef send
		51	#undef recv
		52	#undef stat
		53	#undef lstat
		54	#undef fstat
		55	#undef truncate
		56	#undef ftruncate
		57	#undef open
		58	#undef link
		59	#undef close
		60	#undef unlink
		61	#undef mkdir
		62	#undef rmdir
		63	#undef rename
		64	#undef lseek
		65	#undef opendir
		66	#undef readdir
		67	#undef closedir
		68	#undef chmod
		69	#undef fchmod
		70	#undef dup
		71	#undef dup2
		72	#undef abort
		73	#undef pipe
		74
		75	#define EIO_STRUCT_STAT struct _stati64
78	#define EIO_STRUCT_STAT Stat_t	76	#define EIO_STRUCT_STATI64
79		77
80	/* use NV for 32 bit perls as it allows larger offsets */
81	#if IVSIZE >= 8
82	# define VAL64 IV
83	# define SvVAL64 SvIV
84	# define newSVval64 newSViv
85	#else	78	#else
86	# define VAL64 NV	79
87	# define SvVAL64 SvNV	80	#include <sys/time.h>
88	# define newSVval64 newSVnv	81	#include <sys/select.h>
		82	#include <unistd.h>
		83	#include <utime.h>
		84	#include <signal.h>
		85
		86	#define EIO_STRUCT_STAT Stat_t
		87
89	#endif	88	#endif
90		89
91	/*****************************************************************************/	90	/*****************************************************************************/
92		91
93	#if __GNUC__ >= 3	92	#if __GNUC__ >= 3
…		…
103		102
104	typedef SV SV8; /* byte-sv, used for argument-checking */	103	typedef SV SV8; /* byte-sv, used for argument-checking */
105	typedef int aio_rfd; /* read file desriptor */	104	typedef int aio_rfd; /* read file desriptor */
106	typedef int aio_wfd; /* write file descriptor */	105	typedef int aio_wfd; /* write file descriptor */
107		106
108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	107	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
109		108
110	#define EIO_REQ_MEMBERS \	109	#define EIO_REQ_MEMBERS \
111	SV *callback; \	110	SV *callback; \
112	SV *sv1, *sv2; \	111	SV *sv1, *sv2; \
		112	SV *sv3, *sv4; \
113	STRLEN stroffset; \	113	STRLEN stroffset; \
114	SV *self;	114	SV *self;
115		115
116	#define EIO_NO_WRAPPERS 1	116	#define EIO_NO_WRAPPERS 1
117		117
		118	#include "libeio/config.h"
118	#include "libeio/eio.h"	119	#include "libeio/eio.h"
119
120	#ifndef POSIX_FADV_NORMAL
121	# define POSIX_FADV_NORMAL 0
122	# define NO_FADVISE 1
123	#endif
124
125	#ifndef POSIX_FADV_SEQUENTIAL
126	# define POSIX_FADV_SEQUENTIAL 0
127	#endif
128
129	#ifndef POSIX_FADV_RANDOM
130	# define POSIX_FADV_RANDOM 0
131	#endif
132
133	#ifndef POSIX_FADV_NOREUSE
134	# define POSIX_FADV_NOREUSE 0
135	#endif
136
137	#ifndef POSIX_FADV_WILLNEED
138	# define POSIX_FADV_WILLNEED 0
139	#endif
140
141	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0
143	#endif
144		120
145	static int req_invoke (eio_req *req);	121	static int req_invoke (eio_req *req);
146	#define EIO_FINISH(req) req_invoke (req)	122	#define EIO_FINISH(req) req_invoke (req)
147	static void req_destroy (eio_req *grp);	123	static void req_destroy (eio_req *grp);
148	#define EIO_DESTROY(req) req_destroy (req)	124	#define EIO_DESTROY(req) req_destroy (req)
149		125
		126	#include "libeio/eio.c"
		127
		128	#if !HAVE_POSIX_FADVISE
		129	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		130	#endif
		131
		132	#if !HAVE_POSIX_MADVISE
		133	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		134	#endif
		135
		136	#ifndef MAP_ANONYMOUS
		137	# ifdef MAP_ANON
		138	# define MAP_ANONYMOUS MAP_ANON
		139	# else
		140	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		141	# endif
		142	#endif
		143
		144	/* defines all sorts of constants to 0 unless they are already defined */
		145	#include "def0.h"
		146
		147	#ifndef makedev
		148	# define makedev(maj,min) (((maj) << 8) | (min))
		149	#endif
		150	#ifndef major
		151	# define major(dev) ((dev) >> 8)
		152	#endif
		153	#ifndef minor
		154	# define minor(dev) ((dev) & 0xff)
		155	#endif
		156
		157	#ifndef PAGESIZE
		158	# define PAGESIZE sysconf (_SC_PAGESIZE)
		159	#endif
		160
		161	/*****************************************************************************/
		162
		163	static void
		164	fiemap (eio_req *req)
		165	{
		166	req->result = -1;
		167
		168	#if HAVE_FIEMAP
		169	for (;;)
		170	{
		171	int count = req->int3;
		172
		173	if (count < 0)
		174	{
		175	struct fiemap fiemap;
		176
		177	fiemap.fm_start = req->offs;
		178	fiemap.fm_length = req->size;
		179	fiemap.fm_flags = req->int2;
		180	fiemap.fm_extent_count = 0;
		181
		182	if (ioctl (req->int1, FS_IOC_FIEMAP, &fiemap))
		183	return;
		184
		185	count = fiemap.fm_mapped_extents;
		186	}
		187
		188	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		189	errno = ENOMEM;
		190	if (!fiemap)
		191	return;
		192
		193	req->ptr1 = fiemap;
		194	req->flags |= EIO_FLAG_PTR1_FREE;
		195
		196	fiemap->fm_start = req->offs;
		197	fiemap->fm_length = req->size;
		198	fiemap->fm_flags = req->int2;
		199	fiemap->fm_extent_count = count;
		200
		201	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		202	return;
		203
		204	if (req->int3 >= 0)
		205	break; /* when not autosizing we are done */
		206
		207	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
		208	break; /* autosizing successful, we are done */
		209
		210	free (fiemap);
		211	}
		212
		213	req->result = 0;
		214
		215	#else
		216	errno = ENOSYS;
		217	#endif
		218	}
		219
		220	/*****************************************************************************/
		221
150	enum {	222	enum {
151	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	223	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
152	};	224	};
153		225
154	#include "libeio/eio.c"
155
156	typedef eio_req *aio_req;	226	typedef eio_req *aio_req;
157	typedef eio_req *aio_req_ornot;	227	typedef eio_req *aio_req_ornot;
		228	typedef eio_wd aio_wd;
158		229
159	static SV *on_next_submit;	230	static SV *on_next_submit;
160	static int next_pri = EIO_PRI_DEFAULT;	231	static int next_pri = EIO_PRI_DEFAULT;
161	static int max_outstanding;	232	static int max_outstanding;
162		233
163	static s_epipe respipe;	234	static s_epipe respipe;
164		235
165	static void req_destroy (aio_req req);	236	static void req_destroy (aio_req req);
166	static void req_cancel (aio_req req);	237	static void req_cancel (aio_req req);
167		238
168	static void want_poll (void)	239	static void
		240	want_poll (void)
169	{	241	{
170	/* write a dummy byte to the pipe so fh becomes ready */	242	/* write a dummy byte to the pipe so fh becomes ready */
171	s_epipe_signal (&respipe);	243	s_epipe_signal (&respipe);
172	}	244	}
173		245
174	static void done_poll (void)	246	static void
		247	done_poll (void)
175	{	248	{
176	/* read any signals sent by the worker threads */	249	/* read any signals sent by the worker threads */
177	s_epipe_drain (&respipe);	250	s_epipe_drain (&respipe);
178	}	251	}
179		252
180	/* must be called at most once */	253	/* must be called at most once */
		254	static SV *
181	static SV *req_sv (aio_req req, HV *stash)	255	req_sv (aio_req req, HV *stash)
182	{	256	{
183	if (!req->self)	257	if (!req->self)
184	{	258	{
185	req->self = (SV *)newHV ();	259	req->self = (SV *)newHV ();
186	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	260	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
187	}	261	}
188		262
189	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	263	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
190	}	264	}
191		265
192	static aio_req SvAIO_REQ (SV *sv)	266	static SV *
		267	newSVaio_wd (aio_wd wd)
		268	{
		269	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		270	}
		271
		272	static aio_req
		273	SvAIO_REQ (SV *sv)
193	{	274	{
194	MAGIC *mg;	275	MAGIC *mg;
195		276
196	if (!SvROK (sv)	277	if (!SvROK (sv)
		278	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
197	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	279	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
198	&& SvSTASH (SvRV (sv)) != aio_req_stash	280	&& SvSTASH (SvRV (sv)) != aio_req_stash
199	&& !sv_derived_from (sv, "IO::AIO::REQ")))	281	&& !sv_derived_from (sv, "IO::AIO::REQ")))
200	croak ("object of class IO::AIO::REQ expected");	282	croak ("object of class IO::AIO::REQ expected");
201		283
202	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	284	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
203		285
204	return mg ? (aio_req)mg->mg_ptr : 0;	286	return mg ? (aio_req)mg->mg_ptr : 0;
205	}	287	}
206		288
		289	static aio_wd
		290	SvAIO_WD (SV *sv)
		291	{
		292	if (!SvROK (sv)
		293	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		294	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		295	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		296
		297	return (aio_wd)(long)SvIVX (SvRV (sv));
		298	}
		299
		300	static void
207	static void aio_grp_feed (aio_req grp)	301	aio_grp_feed (aio_req grp)
208	{	302	{
209	if (grp->sv2 && SvOK (grp->sv2))	303	if (grp->sv2 && SvOK (grp->sv2))
210	{	304	{
211	dSP;	305	dSP;
212		306
…		…
220	FREETMPS;	314	FREETMPS;
221	LEAVE;	315	LEAVE;
222	}	316	}
223	}	317	}
224		318
		319	static void
225	static void req_submit (eio_req *req)	320	req_submit (eio_req *req)
226	{	321	{
227	eio_submit (req);	322	eio_submit (req);
228		323
229	if (expect_false (on_next_submit))	324	if (expect_false (on_next_submit))
230	{	325	{
…		…
237	PUTBACK;	332	PUTBACK;
238	call_sv (cb, G_DISCARD | G_EVAL);	333	call_sv (cb, G_DISCARD | G_EVAL);
239	}	334	}
240	}	335	}
241		336
		337	static int
242	static int req_invoke (eio_req *req)	338	req_invoke (eio_req *req)
243	{	339	{
244	dSP;
245
246	if (req->flags & FLAG_SV2_RO_OFF)	340	if (req->flags & FLAG_SV2_RO_OFF)
247	SvREADONLY_off (req->sv2);	341	SvREADONLY_off (req->sv2);
248		342
249	if (!EIO_CANCELLED (req) && req->callback)	343	if (!EIO_CANCELLED (req) && req->callback)
250	{	344	{
		345	dSP;
		346	static SV *sv_result_cache; /* caches the result integer SV */
		347	SV *sv_result;
		348
251	ENTER;	349	ENTER;
252	SAVETMPS;	350	SAVETMPS;
253	PUSHMARK (SP);	351	PUSHMARK (SP);
254	EXTEND (SP, 1);	352	EXTEND (SP, 1);
255		353
		354	/* do not recreate the result IV from scratch each time */
		355	if (expect_true (sv_result_cache))
		356	{
		357	sv_result = sv_result_cache; sv_result_cache = 0;
		358	SvIV_set (sv_result, req->result);
		359	SvIOK_only (sv_result);
		360	}
		361	else
		362	{
		363	sv_result = newSViv (req->result);
		364	SvREADONLY_on (sv_result);
		365	}
		366
256	switch (req->type)	367	switch (req->type)
257	{	368	{
		369	case EIO_WD_OPEN:
		370	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		371	break;
		372
258	case EIO_READDIR:	373	case EIO_READDIR:
259	{	374	{
260	SV *rv = &PL_sv_undef;	375	SV *rv = &PL_sv_undef;
261		376
262	if (req->result >= 0)	377	if (req->result >= 0)
…		…
345		460
346	PUSHs (fh);	461	PUSHs (fh);
347	}	462	}
348	break;	463	break;
349		464
		465	case EIO_STATVFS:
		466	case EIO_FSTATVFS:
		467	{
		468	SV *rv = &PL_sv_undef;
		469
		470	#ifndef _WIN32
		471	if (req->result >= 0)
		472	{
		473	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		474	HV *hv = newHV ();
		475
		476	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		477
		478	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		479	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		480	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		481	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		482	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		483	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		484	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		485	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		486	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		487	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		488	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		489	}
		490	#endif
		491
		492	PUSHs (rv);
		493	}
		494
		495	break;
		496
350	case EIO_GROUP:	497	case EIO_GROUP:
351	req->int1 = 2; /* mark group as finished */	498	req->int1 = 2; /* mark group as finished */
352		499
353	if (req->sv1)	500	if (req->sv1)
354	{	501	{
…		…
364	case EIO_NOP:	511	case EIO_NOP:
365	case EIO_BUSY:	512	case EIO_BUSY:
366	break;	513	break;
367		514
368	case EIO_READLINK:	515	case EIO_READLINK:
		516	case EIO_REALPATH:
369	if (req->result > 0)	517	if (req->result > 0)
370	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	518	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
371	break;	519	break;
372		520
373	case EIO_STAT:	521	case EIO_STAT:
374	case EIO_LSTAT:	522	case EIO_LSTAT:
375	case EIO_FSTAT:	523	case EIO_FSTAT:
376	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	524	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		525
377	PL_laststatval = req->result;	526	if (!(PL_laststatval = req->result))
		527	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
378	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	528	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
379	PUSHs (sv_2mortal (newSViv (req->result)));	529
		530	PUSHs (sv_result);
		531	break;
		532
		533	case EIO_SEEK:
		534	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
380	break;	535	break;
381		536
382	case EIO_READ:	537	case EIO_READ:
383	{	538	{
384	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	539	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
385	*SvEND (req->sv2) = 0;	540	*SvEND (req->sv2) = 0;
386	SvPOK_only (req->sv2);	541	SvPOK_only (req->sv2);
387	SvSETMAGIC (req->sv2);	542	SvSETMAGIC (req->sv2);
388	PUSHs (sv_2mortal (newSViv (req->result)));	543	PUSHs (sv_result);
389	}	544	}
390	break;	545	break;
391		546
392	case EIO_DUP2:	547	case EIO_CUSTOM:
		548	if (req->feed == fiemap)
		549	{
		550	if (!req->result)
		551	{
		552	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		553
		554	if (fiemap->fm_extent_count)
		555	{
		556	AV *av = newAV ();
		557	int i;
		558
		559	while (fiemap->fm_mapped_extents)
		560	{
		561	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		562	AV *ext_av = newAV ();
		563
		564	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		565	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		566	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		567	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		568
		569	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		570	}
		571
		572	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		573	}
		574	else
		575	{
		576	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		577	PUSHs (sv_result);
		578	}
		579	}
		580	}
		581	else
		582	PUSHs (sv_result);
		583	break;
		584
		585	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
393	if (req->result > 0)	586	if (req->result > 0)
394	req->result = 0;	587	SvIV_set (sv_result, 0);
395	/* FALLTHROUGH */	588	/* FALLTHROUGH */
396		589
397	default:	590	default:
398	PUSHs (sv_2mortal (newSViv (req->result)));	591	PUSHs (sv_result);
399	break;	592	break;
400	}	593	}
401		594
402	errno = req->errorno;	595	errno = req->errorno;
403		596
404	PUTBACK;	597	PUTBACK;
405	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	598	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
406	SPAGAIN;	599	SPAGAIN;
407		600
		601	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		602	SvREFCNT_dec (sv_result);
		603	else
		604	sv_result_cache = sv_result;
		605
408	FREETMPS;	606	FREETMPS;
409	LEAVE;	607	LEAVE;
410		608
411	PUTBACK;	609	PUTBACK;
412	}	610	}
413		611
414	return !!SvTRUE (ERRSV);	612	return !!SvTRUE (ERRSV);
415	}	613	}
416		614
		615	static void
417	static void req_destroy (aio_req req)	616	req_destroy (aio_req req)
418	{	617	{
419	if (req->self)	618	if (req->self)
420	{	619	{
421	sv_unmagic (req->self, PERL_MAGIC_ext);	620	sv_unmagic (req->self, PERL_MAGIC_ext);
422	SvREFCNT_dec (req->self);	621	SvREFCNT_dec (req->self);
423	}	622	}
424		623
425	SvREFCNT_dec (req->sv1);	624	SvREFCNT_dec (req->sv1);
426	SvREFCNT_dec (req->sv2);	625	SvREFCNT_dec (req->sv2);
		626	SvREFCNT_dec (req->sv3);
		627	SvREFCNT_dec (req->sv4);
427	SvREFCNT_dec (req->callback);	628	SvREFCNT_dec (req->callback);
428		629
429	Safefree (req);	630	free (req);
430	}	631	}
431		632
		633	static void
432	static void req_cancel_subs (aio_req grp)	634	req_cancel_subs (aio_req grp)
433	{	635	{
434	aio_req sub;
435
436	if (grp->type != EIO_GROUP)	636	if (grp->type != EIO_GROUP)
437	return;	637	return;
438		638
439	SvREFCNT_dec (grp->sv2);	639	SvREFCNT_dec (grp->sv2);
440	grp->sv2 = 0;	640	grp->sv2 = 0;
441		641
442	eio_grp_cancel (grp);	642	eio_grp_cancel (grp);
443	}	643	}
444		644
445	static void	645	static void ecb_cold
446	create_respipe (void)	646	create_respipe (void)
447	{	647	{
448	if (s_epipe_renew (&respipe))	648	if (s_epipe_renew (&respipe))
449	croak ("IO::AIO: unable to initialize result pipe");	649	croak ("IO::AIO: unable to initialize result pipe");
450	}	650	}
451		651
452	static void poll_wait (void)	652	static void
		653	poll_wait (void)
453	{	654	{
454	while (eio_nreqs ())	655	while (eio_nreqs ())
455	{	656	{
456	int size;	657	int size;
457		658
…		…
466		667
467	s_epipe_wait (&respipe);	668	s_epipe_wait (&respipe);
468	}	669	}
469	}	670	}
470		671
471	static int poll_cb (void)	672	static int
		673	poll_cb (void)
472	{	674	{
473	for (;;)	675	for (;;)
474	{	676	{
475	int res = eio_poll ();	677	int res = eio_poll ();
476		678
…		…
482		684
483	poll_wait ();	685	poll_wait ();
484	}	686	}
485	}	687	}
486		688
487	static void atfork_child (void)	689	static void ecb_cold
		690	reinit (void)
488	{	691	{
489	create_respipe ();	692	create_respipe ();
		693
		694	if (eio_init (want_poll, done_poll) < 0)
		695	croak ("IO::AIO: unable to initialise eio library");
490	}	696	}
		697
		698	/*****************************************************************************/
		699
		700	#if !_POSIX_MAPPED_FILES
		701	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		702	# define munmap(addr,length) (errno = ENOSYS, -1)
		703	#endif
		704
		705	#if !_POSIX_MEMORY_PROTECTION
		706	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		707	# define PROT_NONE 0
		708	# define PROT_WRITE 0
		709	# define MAP_PRIVATE 0
		710	# define MAP_SHARED 0
		711	# define MAP_FIXED 0
		712	#endif
		713
		714	#define MMAP_MAGIC PERL_MAGIC_ext
		715
		716	static int ecb_cold
		717	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		718	{
		719	int old_errno = errno;
		720	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		721	errno = old_errno;
		722
		723	mg->mg_obj = 0; /* just in case */
		724
		725	SvREADONLY_off (sv);
		726
		727	if (SvPVX (sv) != mg->mg_ptr)
		728	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		729
		730	SvCUR_set (sv, 0);
		731	SvPVX (sv) = 0;
		732	SvOK_off (sv);
		733
		734	return 0;
		735	}
		736
		737	static MGVTBL mmap_vtbl = {
		738	0, 0, 0, 0, mmap_free
		739	};
		740
		741	/*****************************************************************************/
491		742
492	static SV *	743	static SV *
493	get_cb (SV *cb_sv)	744	get_cb (SV *cb_sv)
494	{	745	{
495	SvGETMAGIC (cb_sv);	746	SvGETMAGIC (cb_sv);
496	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	747	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
497	}	748	}
498		749
		750	static aio_req ecb_noinline
		751	dreq (SV *callback)
		752	{
		753	SV *cb_cv;
		754	aio_req req;
		755	int req_pri = next_pri;
		756	next_pri = EIO_PRI_DEFAULT;
		757
		758	cb_cv = get_cb (callback);
		759
		760	req = calloc (sizeof (*req), 1);
		761	if (!req)
		762	croak ("out of memory during eio_req allocation");
		763
		764	req->callback = SvREFCNT_inc (cb_cv);
		765	req->pri = req_pri;
		766
		767	return req;
		768	}
		769
499	#define dREQ \	770	#define dREQ \
500	SV *cb_cv; \	771	aio_req req = dreq (callback); \
501	aio_req req; \
502	int req_pri = next_pri; \
503	next_pri = EIO_PRI_DEFAULT; \
504	\
505	cb_cv = get_cb (callback); \
506	\
507	Newz (0, req, 1, eio_req); \
508	if (!req) \
509	croak ("out of memory during eio_req allocation"); \
510	\
511	req->callback = SvREFCNT_inc (cb_cv); \
512	req->pri = req_pri
513		772
514	#define REQ_SEND \	773	#define REQ_SEND \
515	PUTBACK; \	774	PUTBACK; \
516	req_submit (req); \	775	req_submit (req); \
517	SPAGAIN; \	776	SPAGAIN; \
518	\	777	\
519	if (GIMME_V != G_VOID) \	778	if (GIMME_V != G_VOID) \
520	XPUSHs (req_sv (req, aio_req_stash));	779	XPUSHs (req_sv (req, aio_req_stash));
521		780
		781	ecb_inline void
		782	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		783	{
		784	if (expect_false (SvROK (path)))
		785	{
		786	SV *rv = SvRV (path);
		787	SV *wdob;
		788
		789	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		790	{
		791	path = AvARRAY (rv)[1];
		792	wdob = AvARRAY (rv)[0];
		793
		794	if (SvOK (wdob))
		795	{
		796	*wd = SvAIO_WD (wdob);
		797	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		798	}
		799	else
		800	*wd = EIO_INVALID_WD;
		801	}
		802	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		803	{
		804	*wd = (aio_wd)(long)SvIVX (rv);
		805	*wdsv = SvREFCNT_inc_NN (rv);
		806	*ptr = ".";
		807	return; /* path set to "." */
		808	}
		809	else
		810	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		811	}
		812
		813	*pathsv = newSVsv (path);
		814	*ptr = SvPVbyte_nolen (*pathsv);
		815	}
		816
		817	static void ecb_noinline
		818	req_set_path1 (aio_req req, SV *path)
		819	{
		820	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		821	}
		822
		823	static void ecb_noinline
		824	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		825	{
		826	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		827
		828	switch (SvTYPE (rv))
		829	{
		830	case SVt_PVIO:
		831	case SVt_PVLV:
		832	case SVt_PVGV:
		833	req->type = type_fh;
		834	req->sv1 = newSVsv (fh_or_path);
		835	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		836	break;
		837
		838	default:
		839	req->type = type_path;
		840	req_set_path1 (req, fh_or_path);
		841	break;
		842	}
		843	}
		844
		845	XS(boot_IO__AIO) ecb_cold;
		846
522	MODULE = IO::AIO PACKAGE = IO::AIO	847	MODULE = IO::AIO PACKAGE = IO::AIO
523		848
524	PROTOTYPES: ENABLE	849	PROTOTYPES: ENABLE
525		850
526	BOOT:	851	BOOT:
527	{	852	{
528	static const struct {	853	static const struct {
529	const char *name;	854	const char *name;
530	IV iv;	855	IV iv;
531	} *civ, const_iv[] = {	856	} *civ, const_iv[] = {
532	# define const_iv(name, value) { # name, (IV) value },	857	# define const_niv(name, value) { # name, (IV) value },
		858	# define const_iv(name) { # name, (IV) name },
533	# define const_eio(name) { # name, (IV) EIO_ ## name },	859	# define const_eio(name) { # name, (IV) EIO_ ## name },
534	const_iv (EXDEV , EXDEV)	860
		861	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		862
535	const_iv (ENOSYS , ENOSYS)	863	const_iv (ENOSYS)
		864	const_iv (EXDEV)
		865	const_iv (EBADR)
		866
536	const_iv (O_RDONLY, O_RDONLY)	867	const_iv (O_RDONLY)
537	const_iv (O_WRONLY, O_WRONLY)	868	const_iv (O_WRONLY)
		869	const_iv (O_RDWR)
538	const_iv (O_CREAT , O_CREAT)	870	const_iv (O_CREAT)
539	const_iv (O_TRUNC , O_TRUNC)	871	const_iv (O_TRUNC)
540	#ifndef _WIN32	872	const_iv (O_EXCL)
		873	const_iv (O_APPEND)
		874
		875	const_iv (O_ASYNC)
		876	const_iv (O_DIRECT)
		877	const_iv (O_NOATIME)
		878
		879	const_iv (O_CLOEXEC)
		880	const_iv (O_NOCTTY)
		881	const_iv (O_NOFOLLOW)
		882	const_iv (O_NONBLOCK)
		883	const_iv (O_EXEC)
		884	const_iv (O_SEARCH)
		885	const_iv (O_DIRECTORY)
		886	const_iv (O_DSYNC)
		887	const_iv (O_RSYNC)
		888	const_iv (O_SYNC)
		889	const_iv (O_TTY_INIT)
		890
541	const_iv (S_IFIFO , S_IFIFO)	891	const_iv (S_IFIFO)
542	#endif	892	const_iv (S_IFCHR)
		893	const_iv (S_IFBLK)
		894	const_iv (S_IFLNK)
		895	const_iv (S_IFREG)
		896	const_iv (S_IFDIR)
		897	const_iv (S_IFWHT)
		898	const_iv (S_IFSOCK)
		899	const_iv (S_IFMT)
		900
543	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	901	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
544	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	902	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
545	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	903	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
546	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	904	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
547	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	905	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
548	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	906	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		907
		908	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		909	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		910	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		911	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		912	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		913
		914	const_iv (ST_RDONLY)
		915	const_iv (ST_NOSUID)
		916	const_iv (ST_NODEV)
		917	const_iv (ST_NOEXEC)
		918	const_iv (ST_SYNCHRONOUS)
		919	const_iv (ST_MANDLOCK)
		920	const_iv (ST_WRITE)
		921	const_iv (ST_APPEND)
		922	const_iv (ST_IMMUTABLE)
		923	const_iv (ST_NOATIME)
		924	const_iv (ST_NODIRATIME)
		925	const_iv (ST_RELATIME)
		926
		927	const_iv (PROT_NONE)
		928	const_iv (PROT_EXEC)
		929	const_iv (PROT_READ)
		930	const_iv (PROT_WRITE)
		931
		932	/*const_iv (MAP_FIXED)*/
		933	const_iv (MAP_PRIVATE)
		934	const_iv (MAP_SHARED)
		935	const_iv (MAP_ANONYMOUS)
		936
		937	/* linuxish */
		938	const_iv (MAP_HUGETLB)
		939	const_iv (MAP_LOCKED)
		940	const_iv (MAP_NORESERVE)
		941	const_iv (MAP_POPULATE)
		942	const_iv (MAP_NONBLOCK)
		943
		944	const_iv (FIEMAP_FLAG_SYNC)
		945	const_iv (FIEMAP_FLAG_XATTR)
		946	const_iv (FIEMAP_FLAGS_COMPAT)
		947	const_iv (FIEMAP_EXTENT_LAST)
		948	const_iv (FIEMAP_EXTENT_UNKNOWN)
		949	const_iv (FIEMAP_EXTENT_DELALLOC)
		950	const_iv (FIEMAP_EXTENT_ENCODED)
		951	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		952	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		953	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		954	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		955	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		956	const_iv (FIEMAP_EXTENT_MERGED)
		957	const_iv (FIEMAP_EXTENT_SHARED)
		958
		959	const_eio (SEEK_SET)
		960	const_eio (SEEK_CUR)
		961	const_eio (SEEK_END)
		962
		963	const_eio (MCL_FUTURE)
		964	const_eio (MCL_CURRENT)
		965
		966	const_eio (MS_ASYNC)
		967	const_eio (MS_INVALIDATE)
		968	const_eio (MS_SYNC)
		969
		970	const_eio (MT_MODIFY)
549		971
550	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	972	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
551	const_eio (SYNC_FILE_RANGE_WRITE)	973	const_eio (SYNC_FILE_RANGE_WRITE)
552	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	974	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		975
		976	const_eio (FALLOC_FL_KEEP_SIZE)
553		977
554	const_eio (READDIR_DENTS)	978	const_eio (READDIR_DENTS)
555	const_eio (READDIR_DIRS_FIRST)	979	const_eio (READDIR_DIRS_FIRST)
556	const_eio (READDIR_STAT_ORDER)	980	const_eio (READDIR_STAT_ORDER)
557	const_eio (READDIR_FOUND_UNKNOWN)	981	const_eio (READDIR_FOUND_UNKNOWN)
…		…
568	};	992	};
569		993
570	aio_stash = gv_stashpv ("IO::AIO" , 1);	994	aio_stash = gv_stashpv ("IO::AIO" , 1);
571	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	995	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
572	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	996	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		997	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
573		998
574	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	999	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
575	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1000	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
576		1001
577	create_respipe ();	1002	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
578		1003
579	if (eio_init (want_poll, done_poll) < 0)	1004	reinit ();
580	croak ("IO::AIO: unable to initialise eio library");
581
582	/* atfork child called in fifo order, so before eio's handler */
583	X_THREAD_ATFORK (0, 0, atfork_child);
584	}	1005	}
585		1006
586	void	1007	void
		1008	reinit ()
		1009	PROTOTYPE:
		1010
		1011	void
587	max_poll_reqs (int nreqs)	1012	max_poll_reqs (unsigned int nreqs)
588	PROTOTYPE: $	1013	PROTOTYPE: $
589	CODE:	1014	CODE:
590	eio_set_max_poll_reqs (nreqs);	1015	eio_set_max_poll_reqs (nreqs);
591		1016
592	void	1017	void
…		…
594	PROTOTYPE: $	1019	PROTOTYPE: $
595	CODE:	1020	CODE:
596	eio_set_max_poll_time (nseconds);	1021	eio_set_max_poll_time (nseconds);
597		1022
598	void	1023	void
599	min_parallel (int nthreads)	1024	min_parallel (unsigned int nthreads)
600	PROTOTYPE: $	1025	PROTOTYPE: $
601	CODE:	1026	CODE:
602	eio_set_min_parallel (nthreads);	1027	eio_set_min_parallel (nthreads);
603		1028
604	void	1029	void
605	max_parallel (int nthreads)	1030	max_parallel (unsigned int nthreads)
606	PROTOTYPE: $	1031	PROTOTYPE: $
607	CODE:	1032	CODE:
608	eio_set_max_parallel (nthreads);	1033	eio_set_max_parallel (nthreads);
609		1034
610	void	1035	void
611	max_idle (int nthreads)	1036	max_idle (unsigned int nthreads)
612	PROTOTYPE: $	1037	PROTOTYPE: $
613	CODE:	1038	CODE:
614	eio_set_max_idle (nthreads);	1039	eio_set_max_idle (nthreads);
615		1040
616	void	1041	void
		1042	idle_timeout (unsigned int seconds)
		1043	PROTOTYPE: $
		1044	CODE:
		1045	eio_set_idle_timeout (seconds);
		1046
		1047	void
617	max_outstanding (int maxreqs)	1048	max_outstanding (unsigned int maxreqs)
618	PROTOTYPE: $	1049	PROTOTYPE: $
619	CODE:	1050	CODE:
620	max_outstanding = maxreqs;	1051	max_outstanding = maxreqs;
621		1052
622	void	1053	void
		1054	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1055	PPCODE:
		1056	{
		1057	dREQ;
		1058
		1059	req->type = EIO_WD_OPEN;
		1060	req_set_path1 (req, pathname);
		1061
		1062	REQ_SEND;
		1063	}
		1064
		1065	void
623	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1066	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
624	PROTOTYPE: $$$;$
625	PPCODE:	1067	PPCODE:
626	{	1068	{
627	dREQ;	1069	dREQ;
628		1070
629	req->type = EIO_OPEN;	1071	req->type = EIO_OPEN;
630	req->sv1 = newSVsv (pathname);	1072	req_set_path1 (req, pathname);
631	req->ptr1 = SvPVbyte_nolen (req->sv1);
632	req->int1 = flags;	1073	req->int1 = flags;
633	req->int2 = mode;	1074	req->int2 = mode;
634		1075
635	REQ_SEND;	1076	REQ_SEND;
636	}	1077	}
637		1078
638	void	1079	void
639	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1080	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
640	PROTOTYPE: $;$
641	ALIAS:	1081	ALIAS:
642	aio_fsync = EIO_FSYNC	1082	aio_fsync = EIO_FSYNC
643	aio_fdatasync = EIO_FDATASYNC	1083	aio_fdatasync = EIO_FDATASYNC
		1084	aio_syncfs = EIO_SYNCFS
644	PPCODE:	1085	PPCODE:
645	{	1086	{
646	int fd = s_fileno_croak (fh, 0);	1087	int fd = s_fileno_croak (fh, 0);
647	dREQ;	1088	dREQ;
648		1089
649	req->type = ix;	1090	req->type = ix;
650	req->sv1 = newSVsv (fh);	1091	req->sv1 = newSVsv (fh);
651	req->int1 = fd;	1092	req->int1 = fd;
652		1093
653	REQ_SEND (req);	1094	REQ_SEND;
654	}	1095	}
655		1096
656	void	1097	void
657	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1098	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
658	PROTOTYPE: $$$$;$
659	PPCODE:	1099	PPCODE:
660	{	1100	{
661	int fd = s_fileno_croak (fh, 0);	1101	int fd = s_fileno_croak (fh, 0);
662	dREQ;	1102	dREQ;
663		1103
…		…
666	req->int1 = fd;	1106	req->int1 = fd;
667	req->offs = offset;	1107	req->offs = offset;
668	req->size = nbytes;	1108	req->size = nbytes;
669	req->int2 = flags;	1109	req->int2 = flags;
670		1110
671	REQ_SEND (req);	1111	REQ_SEND;
672	}	1112	}
673		1113
674	void	1114	void
675	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1115	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
676	PROTOTYPE: $;$
677	PPCODE:	1116	PPCODE:
678	{	1117	{
679	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
680	int fd = s_fileno_croak (fh, 0);	1118	int fd = s_fileno_croak (fh, 0);
681	dREQ;	1119	dREQ;
682		1120
683	if (close_pipe < 0)	1121	req->type = EIO_FALLOCATE;
		1122	req->sv1 = newSVsv (fh);
		1123	req->int1 = fd;
		1124	req->int2 = mode;
		1125	req->offs = offset;
		1126	req->size = len;
		1127
		1128	REQ_SEND;
		1129	}
		1130
		1131	void
		1132	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1133	PPCODE:
		1134	{
		1135	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1136	int fd = s_fileno_croak (fh, 0);
		1137	dREQ;
		1138
		1139	if (expect_false (close_fd < 0))
684	{	1140	{
685	int pipefd [2];	1141	int pipefd [2];
686		1142
		1143	if (
		1144	#ifdef _WIN32
		1145	_pipe (pipefd, 1, _O_BINARY) < 0
		1146	#else
687	if (pipe (pipefd) < 0	1147	pipe (pipefd) < 0
688	|| close (pipefd [1]) < 0
689	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1148	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1149	#endif
		1150	|| close (pipefd [1]) < 0
		1151	)
690	abort (); /*D*/	1152	abort (); /*D*/
691		1153
692	close_pipe = pipefd [0];	1154	close_fd = pipefd [0];
693	}	1155	}
694		1156
695	req->type = EIO_DUP2;	1157	req->type = EIO_DUP2;
696	req->int1 = close_pipe;	1158	req->int1 = close_fd;
697	req->sv2 = newSVsv (fh);	1159	req->sv2 = newSVsv (fh);
698	req->int2 = fd;	1160	req->int2 = fd;
699		1161
700	REQ_SEND (req);	1162	REQ_SEND;
		1163	}
		1164
		1165	void
		1166	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1167	PPCODE:
		1168	{
		1169	STRLEN svlen;
		1170	int fd = s_fileno_croak (fh, 0);
		1171	dREQ;
		1172
		1173	req->type = EIO_SEEK;
		1174	req->sv1 = newSVsv (fh);
		1175	req->int1 = fd;
		1176	req->offs = SvVAL64 (offset);
		1177	req->int2 = whence;
		1178
		1179	REQ_SEND;
701	}	1180	}
702		1181
703	void	1182	void
704	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1183	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
705	ALIAS:	1184	ALIAS:
706	aio_read = EIO_READ	1185	aio_read = EIO_READ
707	aio_write = EIO_WRITE	1186	aio_write = EIO_WRITE
708	PROTOTYPE: $$$$$;$
709	PPCODE:	1187	PPCODE:
710	{	1188	{
711	STRLEN svlen;	1189	STRLEN svlen;
712	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1190	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
713	char *svptr = SvPVbyte (data, svlen);	1191	char *svptr = SvPVbyte (data, svlen);
…		…
753	REQ_SEND;	1231	REQ_SEND;
754	}	1232	}
755	}	1233	}
756		1234
757	void	1235	void
758	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1236	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
759	PROTOTYPE: $$;$	1237	ALIAS:
		1238	aio_readlink = EIO_READLINK
		1239	aio_realpath = EIO_REALPATH
760	PPCODE:	1240	PPCODE:
761	{	1241	{
762	SV *data;
763	dREQ;	1242	dREQ;
764		1243
765	req->type = EIO_READLINK;	1244	req->type = ix;
766	req->sv1 = newSVsv (path);	1245	req_set_path1 (req, pathname);
767	req->ptr1 = SvPVbyte_nolen (req->sv1);
768		1246
769	REQ_SEND;	1247	REQ_SEND;
770	}	1248	}
771		1249
772	void	1250	void
773	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1251	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
774	PROTOTYPE: $$$$;$
775	PPCODE:	1252	PPCODE:
776	{	1253	{
777	int ifd = s_fileno_croak (in_fh , 0);	1254	int ifd = s_fileno_croak (in_fh , 0);
778	int ofd = s_fileno_croak (out_fh, 1);	1255	int ofd = s_fileno_croak (out_fh, 1);
779	dREQ;	1256	dREQ;
…		…
789	REQ_SEND;	1266	REQ_SEND;
790	}	1267	}
791		1268
792	void	1269	void
793	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1270	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
794	PROTOTYPE: $$$;$
795	PPCODE:	1271	PPCODE:
796	{	1272	{
797	int fd = s_fileno_croak (fh, 0);	1273	int fd = s_fileno_croak (fh, 0);
798	dREQ;	1274	dREQ;
799		1275
…		…
807	}	1283	}
808		1284
809	void	1285	void
810	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1286	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
811	ALIAS:	1287	ALIAS:
812	aio_stat = EIO_STAT	1288	aio_stat = EIO_STAT
813	aio_lstat = EIO_LSTAT	1289	aio_lstat = EIO_LSTAT
		1290	aio_statvfs = EIO_STATVFS
814	PPCODE:	1291	PPCODE:
815	{	1292	{
816	dREQ;	1293	dREQ;
817		1294
818	req->sv1 = newSVsv (fh_or_path);	1295	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
819
820	if (SvPOK (req->sv1))
821	{
822	req->type = ix;
823	req->ptr1 = SvPVbyte_nolen (req->sv1);
824	}
825	else
826	{
827	req->type = EIO_FSTAT;
828	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
829	}
830		1296
831	REQ_SEND;	1297	REQ_SEND;
832	}	1298	}
		1299
		1300	UV
		1301	major (UV dev)
		1302	ALIAS:
		1303	minor = 1
		1304	CODE:
		1305	RETVAL = ix ? major (dev) : minor (dev);
		1306	OUTPUT:
		1307	RETVAL
		1308
		1309	UV
		1310	makedev (UV maj, UV min)
		1311	CODE:
		1312	RETVAL = makedev (maj, min);
		1313	OUTPUT:
		1314	RETVAL
833		1315
834	void	1316	void
835	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1317	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
836	PPCODE:	1318	PPCODE:
837	{	1319	{
838	dREQ;	1320	dREQ;
839		1321
840	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1322	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
841	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1323	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
842	req->sv1 = newSVsv (fh_or_path);	1324	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
843
844	if (SvPOK (req->sv1))
845	{
846	req->type = EIO_UTIME;
847	req->ptr1 = SvPVbyte_nolen (req->sv1);
848	}
849	else
850	{
851	req->type = EIO_FUTIME;
852	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
853	}
854		1325
855	REQ_SEND;	1326	REQ_SEND;
856	}	1327	}
857		1328
858	void	1329	void
859	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1330	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
860	PPCODE:	1331	PPCODE:
861	{	1332	{
862	dREQ;	1333	dREQ;
863		1334
864	req->sv1 = newSVsv (fh_or_path);
865	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1335	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
866		1336	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
867	if (SvPOK (req->sv1))
868	{
869	req->type = EIO_TRUNCATE;
870	req->ptr1 = SvPVbyte_nolen (req->sv1);
871	}
872	else
873	{
874	req->type = EIO_FTRUNCATE;
875	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
876	}
877		1337
878	REQ_SEND;	1338	REQ_SEND;
879	}	1339	}
880		1340
881	void	1341	void
882	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1342	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
883	ALIAS:
884	aio_chmod = EIO_CHMOD
885	aio_mkdir = EIO_MKDIR
886	PPCODE:	1343	PPCODE:
887	{	1344	{
888	dREQ;	1345	dREQ;
889		1346
890	req->int2 = mode;	1347	req->int2 = mode;
891	req->sv1 = newSVsv (fh_or_path);	1348	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
892
893	if (SvPOK (req->sv1))
894	{
895	req->type = ix;
896	req->ptr1 = SvPVbyte_nolen (req->sv1);
897	}
898	else
899	{
900	req->type = EIO_FCHMOD;
901	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
902	}
903		1349
904	REQ_SEND;	1350	REQ_SEND;
905	}	1351	}
906		1352
907	void	1353	void
…		…
910	{	1356	{
911	dREQ;	1357	dREQ;
912		1358
913	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1359	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
914	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1360	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
915	req->sv1 = newSVsv (fh_or_path);	1361	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
916
917	if (SvPOK (req->sv1))
918	{
919	req->type = EIO_CHOWN;
920	req->ptr1 = SvPVbyte_nolen (req->sv1);
921	}
922	else
923	{
924	req->type = EIO_FCHOWN;
925	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
926	}
927		1362
928	REQ_SEND;	1363	REQ_SEND;
929	}	1364	}
930		1365
931	void	1366	void
…		…
933	PPCODE:	1368	PPCODE:
934	{	1369	{
935	dREQ;	1370	dREQ;
936		1371
937	req->type = EIO_READDIR;	1372	req->type = EIO_READDIR;
938	req->sv1 = newSVsv (pathname);
939	req->ptr1 = SvPVbyte_nolen (req->sv1);
940	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1373	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
941		1374
942	if (flags & EIO_READDIR_DENTS)	1375	if (flags & EIO_READDIR_DENTS)
943	req->int1 |= EIO_READDIR_CUSTOM2;	1376	req->int1 |= EIO_READDIR_CUSTOM2;
944		1377
		1378	req_set_path1 (req, pathname);
		1379
945	REQ_SEND;	1380	REQ_SEND;
		1381	}
		1382
		1383	void
		1384	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1385	PPCODE:
		1386	{
		1387	dREQ;
		1388
		1389	req->type = EIO_MKDIR;
		1390	req->int2 = mode;
		1391	req_set_path1 (req, pathname);
		1392
		1393	REQ_SEND;
946	}	1394	}
947		1395
948	void	1396	void
949	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1397	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
950	ALIAS:	1398	ALIAS:
…		…
954	PPCODE:	1402	PPCODE:
955	{	1403	{
956	dREQ;	1404	dREQ;
957		1405
958	req->type = ix;	1406	req->type = ix;
959	req->sv1 = newSVsv (pathname);	1407	req_set_path1 (req, pathname);
960	req->ptr1 = SvPVbyte_nolen (req->sv1);
961		1408
962	REQ_SEND;	1409	REQ_SEND;
963	}	1410	}
964		1411
965	void	1412	void
…		…
968	aio_link = EIO_LINK	1415	aio_link = EIO_LINK
969	aio_symlink = EIO_SYMLINK	1416	aio_symlink = EIO_SYMLINK
970	aio_rename = EIO_RENAME	1417	aio_rename = EIO_RENAME
971	PPCODE:	1418	PPCODE:
972	{	1419	{
		1420	eio_wd wd2 = 0;
973	dREQ;	1421	dREQ;
974		1422
975	req->type = ix;	1423	req->type = ix;
976	req->sv1 = newSVsv (oldpath);	1424	req_set_path1 (req, oldpath);
977	req->ptr1 = SvPVbyte_nolen (req->sv1);	1425	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
978	req->sv2 = newSVsv (newpath);	1426	req->int3 = (long)wd2;
979	req->ptr2 = SvPVbyte_nolen (req->sv2);
980		1427
981	REQ_SEND;	1428	REQ_SEND;
982	}	1429	}
983		1430
984	void	1431	void
…		…
986	PPCODE:	1433	PPCODE:
987	{	1434	{
988	dREQ;	1435	dREQ;
989		1436
990	req->type = EIO_MKNOD;	1437	req->type = EIO_MKNOD;
991	req->sv1 = newSVsv (pathname);
992	req->ptr1 = SvPVbyte_nolen (req->sv1);
993	req->int2 = (mode_t)mode;	1438	req->int2 = (mode_t)mode;
994	req->offs = dev;	1439	req->offs = dev;
		1440	req_set_path1 (req, pathname);
995		1441
996	REQ_SEND;	1442	REQ_SEND;
997	}	1443	}
998		1444
999	void	1445	void
		1446	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1447	ALIAS:
		1448	aio_mtouch = EIO_MTOUCH
		1449	aio_msync = EIO_MSYNC
		1450	PPCODE:
		1451	{
		1452	STRLEN svlen;
		1453	char *svptr = SvPVbyte (data, svlen);
		1454	UV len = SvUV (length);
		1455
		1456	if (offset < 0)
		1457	offset += svlen;
		1458
		1459	if (offset < 0 || offset > svlen)
		1460	croak ("offset outside of scalar");
		1461
		1462	if (!SvOK (length) || len + offset > svlen)
		1463	len = svlen - offset;
		1464
		1465	{
		1466	dREQ;
		1467
		1468	req->type = ix;
		1469	req->sv2 = SvREFCNT_inc (data);
		1470	req->ptr2 = (char *)svptr + offset;
		1471	req->size = len;
		1472	req->int1 = flags;
		1473
		1474	REQ_SEND;
		1475	}
		1476	}
		1477
		1478	void
		1479	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1480	PPCODE:
		1481	{
		1482	STRLEN svlen;
		1483	char *svptr = SvPVbyte (data, svlen);
		1484	UV len = SvUV (length);
		1485
		1486	if (offset < 0)
		1487	offset += svlen;
		1488
		1489	if (offset < 0 || offset > svlen)
		1490	croak ("offset outside of scalar");
		1491
		1492	if (!SvOK (length) || len + offset > svlen)
		1493	len = svlen - offset;
		1494
		1495	{
		1496	dREQ;
		1497
		1498	req->type = EIO_MLOCK;
		1499	req->sv2 = SvREFCNT_inc (data);
		1500	req->ptr2 = (char *)svptr + offset;
		1501	req->size = len;
		1502
		1503	REQ_SEND;
		1504	}
		1505	}
		1506
		1507	void
		1508	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1509	PPCODE:
		1510	{
		1511	dREQ;
		1512
		1513	req->type = EIO_MLOCKALL;
		1514	req->int1 = flags;
		1515
		1516	REQ_SEND;
		1517	}
		1518
		1519	void
		1520	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1521	PPCODE:
		1522	{
		1523	int fd = s_fileno_croak (fh, 0);
		1524	dREQ;
		1525
		1526	req->type = EIO_CUSTOM;
		1527	req->sv1 = newSVsv (fh);
		1528	req->int1 = fd;
		1529
		1530	req->feed = fiemap;
		1531	/* keep our fingers crossed that the next two types are 64 bit */
		1532	req->offs = start;
		1533	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1534	req->int2 = flags;
		1535	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1536
		1537	REQ_SEND;
		1538	}
		1539
		1540	void
1000	aio_busy (double delay, SV *callback=&PL_sv_undef)	1541	aio_busy (double delay, SV *callback=&PL_sv_undef)
1001	PPCODE:	1542	PPCODE:
1002	{	1543	{
1003	dREQ;	1544	dREQ;
1004		1545
…		…
1008	REQ_SEND;	1549	REQ_SEND;
1009	}	1550	}
1010		1551
1011	void	1552	void
1012	aio_group (SV *callback=&PL_sv_undef)	1553	aio_group (SV *callback=&PL_sv_undef)
1013	PROTOTYPE: ;$
1014	PPCODE:	1554	PPCODE:
1015	{	1555	{
1016	dREQ;	1556	dREQ;
1017		1557
1018	req->type = EIO_GROUP;	1558	req->type = EIO_GROUP;
…		…
1035	REQ_SEND;	1575	REQ_SEND;
1036	}	1576	}
1037		1577
1038	int	1578	int
1039	aioreq_pri (int pri = 0)	1579	aioreq_pri (int pri = 0)
1040	PROTOTYPE: ;$
1041	CODE:	1580	CODE:
1042	RETVAL = next_pri;	1581	RETVAL = next_pri;
1043	if (items > 0)	1582	if (items > 0)
1044	{	1583	{
1045	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1584	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1057	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1596	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1058	next_pri = nice;	1597	next_pri = nice;
1059		1598
1060	void	1599	void
1061	flush ()	1600	flush ()
1062	PROTOTYPE:
1063	CODE:	1601	CODE:
1064	while (eio_nreqs ())	1602	while (eio_nreqs ())
1065	{	1603	{
1066	poll_wait ();	1604	poll_wait ();
1067	poll_cb ();	1605	poll_cb ();
1068	}	1606	}
1069		1607
1070	int	1608	int
1071	poll()	1609	poll ()
1072	PROTOTYPE:
1073	CODE:	1610	CODE:
1074	poll_wait ();	1611	poll_wait ();
1075	RETVAL = poll_cb ();	1612	RETVAL = poll_cb ();
1076	OUTPUT:	1613	OUTPUT:
1077	RETVAL	1614	RETVAL
1078		1615
1079	int	1616	int
1080	poll_fileno()	1617	poll_fileno ()
1081	PROTOTYPE:
1082	CODE:	1618	CODE:
1083	RETVAL = s_epipe_fd (&respipe);	1619	RETVAL = s_epipe_fd (&respipe);
1084	OUTPUT:	1620	OUTPUT:
1085	RETVAL	1621	RETVAL
1086		1622
1087	int	1623	int
1088	poll_cb(...)	1624	poll_cb (...)
1089	PROTOTYPE:	1625	PROTOTYPE:
1090	CODE:	1626	CODE:
1091	RETVAL = poll_cb ();	1627	RETVAL = poll_cb ();
1092	OUTPUT:	1628	OUTPUT:
1093	RETVAL	1629	RETVAL
1094		1630
1095	void	1631	void
1096	poll_wait()	1632	poll_wait ()
1097	PROTOTYPE:
1098	CODE:	1633	CODE:
1099	poll_wait ();	1634	poll_wait ();
1100		1635
1101	int	1636	int
1102	nreqs()	1637	nreqs ()
1103	PROTOTYPE:
1104	CODE:	1638	CODE:
1105	RETVAL = eio_nreqs ();	1639	RETVAL = eio_nreqs ();
1106	OUTPUT:	1640	OUTPUT:
1107	RETVAL	1641	RETVAL
1108		1642
1109	int	1643	int
1110	nready()	1644	nready ()
1111	PROTOTYPE:
1112	CODE:	1645	CODE:
1113	RETVAL = eio_nready ();	1646	RETVAL = eio_nready ();
1114	OUTPUT:	1647	OUTPUT:
1115	RETVAL	1648	RETVAL
1116		1649
1117	int	1650	int
1118	npending()	1651	npending ()
1119	PROTOTYPE:
1120	CODE:	1652	CODE:
1121	RETVAL = eio_npending ();	1653	RETVAL = eio_npending ();
1122	OUTPUT:	1654	OUTPUT:
1123	RETVAL	1655	RETVAL
1124		1656
1125	int	1657	int
1126	nthreads()	1658	nthreads ()
1127	PROTOTYPE:
1128	CODE:	1659	CODE:
1129	RETVAL = eio_nthreads ();	1660	RETVAL = eio_nthreads ();
1130	OUTPUT:	1661	OUTPUT:
1131	RETVAL	1662	RETVAL
1132		1663
1133	int	1664	int
1134	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1665	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1135	PROTOTYPE: $$$$
1136	CODE:	1666	CODE:
1137	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1138	RETVAL = posix_fadvise (fh, offset, length, advice);	1667	RETVAL = posix_fadvise (fh, offset, length, advice);
1139	#else
1140	RETVAL = errno = ENOSYS;
1141	#endif
1142	OUTPUT:	1668	OUTPUT:
1143	RETVAL	1669	RETVAL
1144		1670
1145	ssize_t	1671	IV
1146	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1672	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1147	PROTOTYPE: $$$$
1148	CODE:	1673	CODE:
1149	eio_sendfile_sync (ofh, ifh, offset, count);	1674	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1675	OUTPUT:
		1676	RETVAL
		1677
		1678	void
		1679	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1680	PPCODE:
		1681	sv_unmagic (scalar, MMAP_MAGIC);
		1682	{
		1683	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1684	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1685	if (addr == (void *)-1)
		1686	XSRETURN_NO;
		1687
		1688	sv_force_normal (scalar);
		1689
		1690	/* we store the length in mg_obj, as namlen is I32 :/ */
		1691	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1692	->mg_obj = (SV *)length;
		1693
		1694	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1695
		1696	if (!(prot & PROT_WRITE))
		1697	SvREADONLY_on (scalar);
		1698
		1699	if (SvLEN (scalar))
		1700	Safefree (SvPVX (scalar));
		1701
		1702	SvPVX (scalar) = (char *)addr;
		1703	SvCUR_set (scalar, length);
		1704	SvLEN_set (scalar, 0);
		1705	SvPOK_only (scalar);
		1706
		1707	XSRETURN_YES;
		1708	}
		1709
		1710	void
		1711	munmap (SV *scalar)
		1712	CODE:
		1713	sv_unmagic (scalar, MMAP_MAGIC);
		1714
		1715	int
		1716	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1717	ALIAS:
		1718	mprotect = 1
		1719	CODE:
		1720	{
		1721	STRLEN svlen;
		1722	void *addr = SvPVbyte (scalar, svlen);
		1723	size_t len = SvUV (length);
		1724
		1725	if (offset < 0)
		1726	offset += svlen;
		1727
		1728	if (offset < 0 || offset > svlen)
		1729	croak ("offset outside of scalar");
		1730
		1731	if (!SvOK (length) || len + offset > svlen)
		1732	len = svlen - offset;
		1733
		1734	addr = (void *)(((intptr_t)addr) + offset);
		1735	eio_page_align (&addr, &len);
		1736
		1737	switch (ix)
		1738	{
		1739	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1740	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1741	}
		1742	}
		1743	OUTPUT:
		1744	RETVAL
		1745
		1746	int
		1747	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1748	CODE:
		1749	{
		1750	STRLEN svlen;
		1751	void *addr = SvPVbyte (scalar, svlen);
		1752	size_t len = SvUV (length);
		1753
		1754	if (offset < 0)
		1755	offset += svlen;
		1756
		1757	if (offset < 0 || offset > svlen)
		1758	croak ("offset outside of scalar");
		1759
		1760	if (!SvOK (length) || len + offset > svlen)
		1761	len = svlen - offset;
		1762
		1763	addr = (void *)(((intptr_t)addr) + offset);
		1764	eio_page_align (&addr, &len);
		1765	#if _POSIX_MEMLOCK_RANGE
		1766	RETVAL = munlock (addr, len);
		1767	#else
		1768	RETVAL = ((errno = ENOSYS), -1);
		1769	#endif
		1770	}
		1771	OUTPUT:
		1772	RETVAL
		1773
		1774	int
		1775	munlockall ()
		1776	CODE:
		1777	#if _POSIX_MEMLOCK
		1778	munlockall ();
		1779	#else
		1780	RETVAL = -1;
		1781	errno = ENOSYS;
		1782	#endif
		1783	OUTPUT:
		1784	RETVAL
1150		1785
1151	void _on_next_submit (SV *cb)	1786	void _on_next_submit (SV *cb)
1152	CODE:	1787	CODE:
1153	SvREFCNT_dec (on_next_submit);	1788	SvREFCNT_dec (on_next_submit);
1154	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1789	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1155		1790
1156	PROTOTYPES: DISABLE	1791	PROTOTYPES: DISABLE
1157		1792
		1793	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1794
		1795	BOOT:
		1796	{
		1797	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1798	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1799	}
		1800
		1801	void
		1802	DESTROY (SV *self)
		1803	CODE:
		1804	{
		1805	aio_wd wd = SvAIO_WD (self);
		1806	#if HAVE_AT
		1807	{
		1808	SV *callback = &PL_sv_undef;
		1809	dREQ; /* clobbers next_pri :/ */
		1810	next_pri = req->pri; /* restore next_pri */
		1811	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1812	req->type = EIO_WD_CLOSE;
		1813	req->wd = wd;
		1814	REQ_SEND;
		1815	}
		1816	#else
		1817	eio_wd_close_sync (wd);
		1818	#endif
		1819	}
		1820
1158	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1821	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1159		1822
1160	void	1823	void
1161	cancel (aio_req_ornot req)	1824	cancel (aio_req_ornot req)
1162	CODE:	1825	CODE:

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