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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.157 by root, Sat Jan 2 12:58:37 2010 UTC vs.
Revision 1.211 by root, Sat Apr 7 00:50:33 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	int count = req->int3;
		170
		171	/* heuristic: first try with 64 extents if we don't know how many, */
		172	/* as most files have (hopefully) fewer than this many extents */
		173	/* in fact, most should have <= 2, so maybe the 72 below is probably overkill */
		174	if (count < 0)
		175	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
		176
		177	for (;;)
		178	{
		179	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		180	errno = ENOMEM;
		181	if (!fiemap)
		182	return;
		183
		184	req->ptr1 = fiemap;
		185	req->flags |= EIO_FLAG_PTR1_FREE;
		186
		187	fiemap->fm_start = req->offs;
		188	fiemap->fm_length = req->size;
		189	fiemap->fm_flags = req->int2;
		190	fiemap->fm_extent_count = count;
		191
		192	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		193	return;
		194
		195	if (req->int3 >= 0)
		196	break; /* when not autosizing we are done */
		197
		198	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
		199	break; /* autosizing successful, we are done */
		200
		201	fiemap->fm_flags = req->int2;
		202	fiemap->fm_extent_count = 0;
		203
		204	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		205	return;
		206
		207	count = fiemap->fm_mapped_extents;
		208
		209	free (fiemap);
		210	}
		211
		212	req->result = 0;
		213
		214	#else
		215	errno = ENOSYS;
		216	#endif
		217	}
		218
		219	/*****************************************************************************/
		220
150	enum {	221	enum {
151	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	222	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
152	};	223	};
153		224
154	#include "libeio/eio.c"
155
156	typedef eio_req *aio_req;	225	typedef eio_req *aio_req;
157	typedef eio_req *aio_req_ornot;	226	typedef eio_req *aio_req_ornot;
		227	typedef eio_wd aio_wd;
158		228
159	static SV *on_next_submit;	229	static SV *on_next_submit;
160	static int next_pri = EIO_PRI_DEFAULT;	230	static int next_pri = EIO_PRI_DEFAULT;
161	static int max_outstanding;	231	static int max_outstanding;
162		232
163	static s_epipe respipe;	233	static s_epipe respipe;
164		234
165	static void req_destroy (aio_req req);	235	static void req_destroy (aio_req req);
166	static void req_cancel (aio_req req);	236	static void req_cancel (aio_req req);
167		237
168	static void want_poll (void)	238	static void
		239	want_poll (void)
169	{	240	{
170	/* write a dummy byte to the pipe so fh becomes ready */	241	/* write a dummy byte to the pipe so fh becomes ready */
171	s_epipe_signal (&respipe);	242	s_epipe_signal (&respipe);
172	}	243	}
173		244
174	static void done_poll (void)	245	static void
		246	done_poll (void)
175	{	247	{
176	/* read any signals sent by the worker threads */	248	/* read any signals sent by the worker threads */
177	s_epipe_drain (&respipe);	249	s_epipe_drain (&respipe);
178	}	250	}
179		251
180	/* must be called at most once */	252	/* must be called at most once */
		253	static SV *
181	static SV *req_sv (aio_req req, HV *stash)	254	req_sv (aio_req req, HV *stash)
182	{	255	{
183	if (!req->self)	256	if (!req->self)
184	{	257	{
185	req->self = (SV *)newHV ();	258	req->self = (SV *)newHV ();
186	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	259	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
187	}	260	}
188		261
189	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	262	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
190	}	263	}
191		264
192	static aio_req SvAIO_REQ (SV *sv)	265	static SV *
		266	newSVaio_wd (aio_wd wd)
		267	{
		268	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		269	}
		270
		271	static aio_req
		272	SvAIO_REQ (SV *sv)
193	{	273	{
194	MAGIC *mg;	274	MAGIC *mg;
195		275
196	if (!SvROK (sv)	276	if (!SvROK (sv)
		277	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
197	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	278	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
198	&& SvSTASH (SvRV (sv)) != aio_req_stash	279	&& SvSTASH (SvRV (sv)) != aio_req_stash
199	&& !sv_derived_from (sv, "IO::AIO::REQ")))	280	&& !sv_derived_from (sv, "IO::AIO::REQ")))
200	croak ("object of class IO::AIO::REQ expected");	281	croak ("object of class IO::AIO::REQ expected");
201		282
202	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	283	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
203		284
204	return mg ? (aio_req)mg->mg_ptr : 0;	285	return mg ? (aio_req)mg->mg_ptr : 0;
205	}	286	}
206		287
		288	static aio_wd
		289	SvAIO_WD (SV *sv)
		290	{
		291	if (!SvROK (sv)
		292	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		293	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		294	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		295
		296	return (aio_wd)(long)SvIVX (SvRV (sv));
		297	}
		298
		299	static void
207	static void aio_grp_feed (aio_req grp)	300	aio_grp_feed (aio_req grp)
208	{	301	{
209	if (grp->sv2 && SvOK (grp->sv2))	302	if (grp->sv2 && SvOK (grp->sv2))
210	{	303	{
211	dSP;	304	dSP;
212		305
…		…
220	FREETMPS;	313	FREETMPS;
221	LEAVE;	314	LEAVE;
222	}	315	}
223	}	316	}
224		317
		318	static void
225	static void req_submit (eio_req *req)	319	req_submit (eio_req *req)
226	{	320	{
227	eio_submit (req);	321	eio_submit (req);
228		322
229	if (expect_false (on_next_submit))	323	if (expect_false (on_next_submit))
230	{	324	{
…		…
237	PUTBACK;	331	PUTBACK;
238	call_sv (cb, G_DISCARD | G_EVAL);	332	call_sv (cb, G_DISCARD | G_EVAL);
239	}	333	}
240	}	334	}
241		335
		336	static int
242	static int req_invoke (eio_req *req)	337	req_invoke (eio_req *req)
243	{	338	{
244	dSP;
245
246	if (req->flags & FLAG_SV2_RO_OFF)	339	if (req->flags & FLAG_SV2_RO_OFF)
247	SvREADONLY_off (req->sv2);	340	SvREADONLY_off (req->sv2);
248		341
249	if (!EIO_CANCELLED (req) && req->callback)	342	if (!EIO_CANCELLED (req) && req->callback)
250	{	343	{
		344	dSP;
		345	static SV *sv_result_cache; /* caches the result integer SV */
		346	SV *sv_result;
		347
251	ENTER;	348	ENTER;
252	SAVETMPS;	349	SAVETMPS;
253	PUSHMARK (SP);	350	PUSHMARK (SP);
254	EXTEND (SP, 1);	351	EXTEND (SP, 1);
255		352
		353	/* do not recreate the result IV from scratch each time */
		354	if (expect_true (sv_result_cache))
		355	{
		356	sv_result = sv_result_cache; sv_result_cache = 0;
		357	SvIV_set (sv_result, req->result);
		358	SvIOK_only (sv_result);
		359	}
		360	else
		361	{
		362	sv_result = newSViv (req->result);
		363	SvREADONLY_on (sv_result);
		364	}
		365
256	switch (req->type)	366	switch (req->type)
257	{	367	{
		368	case EIO_WD_OPEN:
		369	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		370	break;
		371
258	case EIO_READDIR:	372	case EIO_READDIR:
259	{	373	{
260	SV *rv = &PL_sv_undef;	374	SV *rv = &PL_sv_undef;
261		375
262	if (req->result >= 0)	376	if (req->result >= 0)
…		…
345		459
346	PUSHs (fh);	460	PUSHs (fh);
347	}	461	}
348	break;	462	break;
349		463
		464	case EIO_STATVFS:
		465	case EIO_FSTATVFS:
		466	{
		467	SV *rv = &PL_sv_undef;
		468
		469	#ifndef _WIN32
		470	if (req->result >= 0)
		471	{
		472	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		473	HV *hv = newHV ();
		474
		475	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		476
		477	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		478	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		479	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		480	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		481	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		482	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		483	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		484	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		485	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		486	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		487	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		488	}
		489	#endif
		490
		491	PUSHs (rv);
		492	}
		493
		494	break;
		495
350	case EIO_GROUP:	496	case EIO_GROUP:
351	req->int1 = 2; /* mark group as finished */	497	req->int1 = 2; /* mark group as finished */
352		498
353	if (req->sv1)	499	if (req->sv1)
354	{	500	{
…		…
364	case EIO_NOP:	510	case EIO_NOP:
365	case EIO_BUSY:	511	case EIO_BUSY:
366	break;	512	break;
367		513
368	case EIO_READLINK:	514	case EIO_READLINK:
		515	case EIO_REALPATH:
369	if (req->result > 0)	516	if (req->result > 0)
370	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	517	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
371	break;	518	break;
372		519
373	case EIO_STAT:	520	case EIO_STAT:
374	case EIO_LSTAT:	521	case EIO_LSTAT:
375	case EIO_FSTAT:	522	case EIO_FSTAT:
376	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	523	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		524
377	PL_laststatval = req->result;	525	if (!(PL_laststatval = req->result))
		526	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
378	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	527	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
379	PUSHs (sv_2mortal (newSViv (req->result)));	528
		529	PUSHs (sv_result);
		530	break;
		531
		532	case EIO_SEEK:
		533	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
380	break;	534	break;
381		535
382	case EIO_READ:	536	case EIO_READ:
383	{	537	{
384	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	538	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
385	*SvEND (req->sv2) = 0;	539	*SvEND (req->sv2) = 0;
386	SvPOK_only (req->sv2);	540	SvPOK_only (req->sv2);
387	SvSETMAGIC (req->sv2);	541	SvSETMAGIC (req->sv2);
388	PUSHs (sv_2mortal (newSViv (req->result)));	542	PUSHs (sv_result);
389	}	543	}
390	break;	544	break;
391		545
392	case EIO_DUP2:	546	case EIO_CUSTOM:
		547	if (req->feed == fiemap)
		548	{
		549	#if HAVE_FIEMAP
		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	#endif
		581	}
		582	else
		583	PUSHs (sv_result);
		584	break;
		585
		586	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
393	if (req->result > 0)	587	if (req->result > 0)
394	req->result = 0;	588	SvIV_set (sv_result, 0);
395	/* FALLTHROUGH */	589	/* FALLTHROUGH */
396		590
397	default:	591	default:
398	PUSHs (sv_2mortal (newSViv (req->result)));	592	PUSHs (sv_result);
399	break;	593	break;
400	}	594	}
401		595
402	errno = req->errorno;	596	errno = req->errorno;
403		597
404	PUTBACK;	598	PUTBACK;
405	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	599	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
406	SPAGAIN;	600	SPAGAIN;
407		601
		602	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		603	SvREFCNT_dec (sv_result);
		604	else
		605	sv_result_cache = sv_result;
		606
408	FREETMPS;	607	FREETMPS;
409	LEAVE;	608	LEAVE;
410		609
411	PUTBACK;	610	PUTBACK;
412	}	611	}
413		612
414	return !!SvTRUE (ERRSV);	613	return !!SvTRUE (ERRSV);
415	}	614	}
416		615
		616	static void
417	static void req_destroy (aio_req req)	617	req_destroy (aio_req req)
418	{	618	{
419	if (req->self)	619	if (req->self)
420	{	620	{
421	sv_unmagic (req->self, PERL_MAGIC_ext);	621	sv_unmagic (req->self, PERL_MAGIC_ext);
422	SvREFCNT_dec (req->self);	622	SvREFCNT_dec (req->self);
423	}	623	}
424		624
425	SvREFCNT_dec (req->sv1);	625	SvREFCNT_dec (req->sv1);
426	SvREFCNT_dec (req->sv2);	626	SvREFCNT_dec (req->sv2);
		627	SvREFCNT_dec (req->sv3);
		628	SvREFCNT_dec (req->sv4);
427	SvREFCNT_dec (req->callback);	629	SvREFCNT_dec (req->callback);
428		630
429	Safefree (req);	631	free (req);
430	}	632	}
431		633
		634	static void
432	static void req_cancel_subs (aio_req grp)	635	req_cancel_subs (aio_req grp)
433	{	636	{
434	aio_req sub;
435
436	if (grp->type != EIO_GROUP)	637	if (grp->type != EIO_GROUP)
437	return;	638	return;
438		639
439	SvREFCNT_dec (grp->sv2);	640	SvREFCNT_dec (grp->sv2);
440	grp->sv2 = 0;	641	grp->sv2 = 0;
441		642
442	eio_grp_cancel (grp);	643	eio_grp_cancel (grp);
443	}	644	}
444		645
445	static void	646	static void ecb_cold
446	create_respipe (void)	647	create_respipe (void)
447	{	648	{
448	if (s_epipe_renew (&respipe))	649	if (s_epipe_renew (&respipe))
449	croak ("IO::AIO: unable to initialize result pipe");	650	croak ("IO::AIO: unable to initialize result pipe");
450	}	651	}
451		652
452	static void poll_wait (void)	653	static void
		654	poll_wait (void)
453	{	655	{
454	while (eio_nreqs ())	656	while (eio_nreqs ())
455	{	657	{
456	int size;	658	int size;
457		659
…		…
466		668
467	s_epipe_wait (&respipe);	669	s_epipe_wait (&respipe);
468	}	670	}
469	}	671	}
470		672
471	static int poll_cb (void)	673	static int
		674	poll_cb (void)
472	{	675	{
473	for (;;)	676	for (;;)
474	{	677	{
475	int res = eio_poll ();	678	int res = eio_poll ();
476		679
…		…
482		685
483	poll_wait ();	686	poll_wait ();
484	}	687	}
485	}	688	}
486		689
487	static void atfork_child (void)	690	static void ecb_cold
		691	reinit (void)
488	{	692	{
489	create_respipe ();	693	create_respipe ();
		694
		695	if (eio_init (want_poll, done_poll) < 0)
		696	croak ("IO::AIO: unable to initialise eio library");
490	}	697	}
		698
		699	/*****************************************************************************/
		700
		701	#if !_POSIX_MAPPED_FILES
		702	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		703	# define munmap(addr,length) (errno = ENOSYS, -1)
		704	#endif
		705
		706	#if !_POSIX_MEMORY_PROTECTION
		707	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		708	# define PROT_NONE 0
		709	# define PROT_WRITE 0
		710	# define MAP_PRIVATE 0
		711	# define MAP_SHARED 0
		712	# define MAP_FIXED 0
		713	#endif
		714
		715	#define MMAP_MAGIC PERL_MAGIC_ext
		716
		717	static int ecb_cold
		718	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		719	{
		720	int old_errno = errno;
		721	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		722	errno = old_errno;
		723
		724	mg->mg_obj = 0; /* just in case */
		725
		726	SvREADONLY_off (sv);
		727
		728	if (SvPVX (sv) != mg->mg_ptr)
		729	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		730
		731	SvCUR_set (sv, 0);
		732	SvPVX (sv) = 0;
		733	SvOK_off (sv);
		734
		735	return 0;
		736	}
		737
		738	static MGVTBL mmap_vtbl = {
		739	0, 0, 0, 0, mmap_free
		740	};
		741
		742	/*****************************************************************************/
491		743
492	static SV *	744	static SV *
493	get_cb (SV *cb_sv)	745	get_cb (SV *cb_sv)
494	{	746	{
495	SvGETMAGIC (cb_sv);	747	SvGETMAGIC (cb_sv);
496	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	748	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
497	}	749	}
498		750
		751	static aio_req ecb_noinline
		752	dreq (SV *callback)
		753	{
		754	SV *cb_cv;
		755	aio_req req;
		756	int req_pri = next_pri;
		757	next_pri = EIO_PRI_DEFAULT;
		758
		759	cb_cv = get_cb (callback);
		760
		761	req = calloc (sizeof (*req), 1);
		762	if (!req)
		763	croak ("out of memory during eio_req allocation");
		764
		765	req->callback = SvREFCNT_inc (cb_cv);
		766	req->pri = req_pri;
		767
		768	return req;
		769	}
		770
499	#define dREQ \	771	#define dREQ \
500	SV *cb_cv; \	772	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		773
514	#define REQ_SEND \	774	#define REQ_SEND \
515	PUTBACK; \	775	PUTBACK; \
516	req_submit (req); \	776	req_submit (req); \
517	SPAGAIN; \	777	SPAGAIN; \
518	\	778	\
519	if (GIMME_V != G_VOID) \	779	if (GIMME_V != G_VOID) \
520	XPUSHs (req_sv (req, aio_req_stash));	780	XPUSHs (req_sv (req, aio_req_stash));
521		781
		782	ecb_inline void
		783	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		784	{
		785	if (expect_false (SvROK (path)))
		786	{
		787	SV *rv = SvRV (path);
		788	SV *wdob;
		789
		790	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		791	{
		792	path = AvARRAY (rv)[1];
		793	wdob = AvARRAY (rv)[0];
		794
		795	if (SvOK (wdob))
		796	{
		797	*wd = SvAIO_WD (wdob);
		798	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		799	}
		800	else
		801	*wd = EIO_INVALID_WD;
		802	}
		803	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		804	{
		805	*wd = (aio_wd)(long)SvIVX (rv);
		806	*wdsv = SvREFCNT_inc_NN (rv);
		807	*ptr = ".";
		808	return; /* path set to "." */
		809	}
		810	else
		811	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		812	}
		813
		814	*pathsv = newSVsv (path);
		815	*ptr = SvPVbyte_nolen (*pathsv);
		816	}
		817
		818	static void ecb_noinline
		819	req_set_path1 (aio_req req, SV *path)
		820	{
		821	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		822	}
		823
		824	static void ecb_noinline
		825	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		826	{
		827	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		828
		829	switch (SvTYPE (rv))
		830	{
		831	case SVt_PVIO:
		832	case SVt_PVLV:
		833	case SVt_PVGV:
		834	req->type = type_fh;
		835	req->sv1 = newSVsv (fh_or_path);
		836	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		837	break;
		838
		839	default:
		840	req->type = type_path;
		841	req_set_path1 (req, fh_or_path);
		842	break;
		843	}
		844	}
		845
		846	XS(boot_IO__AIO) ecb_cold;
		847
522	MODULE = IO::AIO PACKAGE = IO::AIO	848	MODULE = IO::AIO PACKAGE = IO::AIO
523		849
524	PROTOTYPES: ENABLE	850	PROTOTYPES: ENABLE
525		851
526	BOOT:	852	BOOT:
527	{	853	{
528	static const struct {	854	static const struct {
529	const char *name;	855	const char *name;
530	IV iv;	856	IV iv;
531	} *civ, const_iv[] = {	857	} *civ, const_iv[] = {
532	# define const_iv(name, value) { # name, (IV) value },	858	# define const_niv(name, value) { # name, (IV) value },
		859	# define const_iv(name) { # name, (IV) name },
533	# define const_eio(name) { # name, (IV) EIO_ ## name },	860	# define const_eio(name) { # name, (IV) EIO_ ## name },
534	const_iv (EXDEV , EXDEV)	861
		862	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		863
535	const_iv (ENOSYS , ENOSYS)	864	const_iv (ENOSYS)
		865	const_iv (EXDEV)
		866	const_iv (EBADR)
		867
536	const_iv (O_RDONLY, O_RDONLY)	868	const_iv (O_RDONLY)
537	const_iv (O_WRONLY, O_WRONLY)	869	const_iv (O_WRONLY)
		870	const_iv (O_RDWR)
538	const_iv (O_CREAT , O_CREAT)	871	const_iv (O_CREAT)
539	const_iv (O_TRUNC , O_TRUNC)	872	const_iv (O_TRUNC)
540	#ifndef _WIN32	873	const_iv (O_EXCL)
		874	const_iv (O_APPEND)
		875
		876	const_iv (O_ASYNC)
		877	const_iv (O_DIRECT)
		878	const_iv (O_NOATIME)
		879
		880	const_iv (O_CLOEXEC)
		881	const_iv (O_NOCTTY)
		882	const_iv (O_NOFOLLOW)
		883	const_iv (O_NONBLOCK)
		884	const_iv (O_EXEC)
		885	const_iv (O_SEARCH)
		886	const_iv (O_DIRECTORY)
		887	const_iv (O_DSYNC)
		888	const_iv (O_RSYNC)
		889	const_iv (O_SYNC)
		890	const_iv (O_TTY_INIT)
		891
541	const_iv (S_IFIFO , S_IFIFO)	892	const_iv (S_IFIFO)
542	#endif	893	const_iv (S_IFCHR)
		894	const_iv (S_IFBLK)
		895	const_iv (S_IFLNK)
		896	const_iv (S_IFREG)
		897	const_iv (S_IFDIR)
		898	const_iv (S_IFWHT)
		899	const_iv (S_IFSOCK)
		900	const_iv (S_IFMT)
		901
543	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	902	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
544	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	903	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
545	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	904	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
546	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	905	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
547	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	906	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
548	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	907	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		908
		909	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		910	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		911	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		912	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		913	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		914
		915	const_iv (ST_RDONLY)
		916	const_iv (ST_NOSUID)
		917	const_iv (ST_NODEV)
		918	const_iv (ST_NOEXEC)
		919	const_iv (ST_SYNCHRONOUS)
		920	const_iv (ST_MANDLOCK)
		921	const_iv (ST_WRITE)
		922	const_iv (ST_APPEND)
		923	const_iv (ST_IMMUTABLE)
		924	const_iv (ST_NOATIME)
		925	const_iv (ST_NODIRATIME)
		926	const_iv (ST_RELATIME)
		927
		928	const_iv (PROT_NONE)
		929	const_iv (PROT_EXEC)
		930	const_iv (PROT_READ)
		931	const_iv (PROT_WRITE)
		932
		933	/*const_iv (MAP_FIXED)*/
		934	const_iv (MAP_PRIVATE)
		935	const_iv (MAP_SHARED)
		936	const_iv (MAP_ANONYMOUS)
		937
		938	/* linuxish */
		939	const_iv (MAP_HUGETLB)
		940	const_iv (MAP_LOCKED)
		941	const_iv (MAP_NORESERVE)
		942	const_iv (MAP_POPULATE)
		943	const_iv (MAP_NONBLOCK)
		944
		945	const_iv (FIEMAP_FLAG_SYNC)
		946	const_iv (FIEMAP_FLAG_XATTR)
		947	const_iv (FIEMAP_FLAGS_COMPAT)
		948	const_iv (FIEMAP_EXTENT_LAST)
		949	const_iv (FIEMAP_EXTENT_UNKNOWN)
		950	const_iv (FIEMAP_EXTENT_DELALLOC)
		951	const_iv (FIEMAP_EXTENT_ENCODED)
		952	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		953	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		954	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		955	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		956	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		957	const_iv (FIEMAP_EXTENT_MERGED)
		958	const_iv (FIEMAP_EXTENT_SHARED)
		959
		960	const_eio (SEEK_SET)
		961	const_eio (SEEK_CUR)
		962	const_eio (SEEK_END)
		963
		964	const_eio (MCL_FUTURE)
		965	const_eio (MCL_CURRENT)
		966
		967	const_eio (MS_ASYNC)
		968	const_eio (MS_INVALIDATE)
		969	const_eio (MS_SYNC)
		970
		971	const_eio (MT_MODIFY)
549		972
550	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	973	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
551	const_eio (SYNC_FILE_RANGE_WRITE)	974	const_eio (SYNC_FILE_RANGE_WRITE)
552	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	975	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		976
		977	const_eio (FALLOC_FL_KEEP_SIZE)
553		978
554	const_eio (READDIR_DENTS)	979	const_eio (READDIR_DENTS)
555	const_eio (READDIR_DIRS_FIRST)	980	const_eio (READDIR_DIRS_FIRST)
556	const_eio (READDIR_STAT_ORDER)	981	const_eio (READDIR_STAT_ORDER)
557	const_eio (READDIR_FOUND_UNKNOWN)	982	const_eio (READDIR_FOUND_UNKNOWN)
…		…
568	};	993	};
569		994
570	aio_stash = gv_stashpv ("IO::AIO" , 1);	995	aio_stash = gv_stashpv ("IO::AIO" , 1);
571	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	996	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
572	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	997	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		998	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
573		999
574	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1000	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));	1001	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
576		1002
577	create_respipe ();	1003	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
578		1004
579	if (eio_init (want_poll, done_poll) < 0)	1005	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	}	1006	}
585		1007
586	void	1008	void
		1009	reinit ()
		1010	PROTOTYPE:
		1011
		1012	void
587	max_poll_reqs (int nreqs)	1013	max_poll_reqs (unsigned int nreqs)
588	PROTOTYPE: $	1014	PROTOTYPE: $
589	CODE:	1015	CODE:
590	eio_set_max_poll_reqs (nreqs);	1016	eio_set_max_poll_reqs (nreqs);
591		1017
592	void	1018	void
…		…
594	PROTOTYPE: $	1020	PROTOTYPE: $
595	CODE:	1021	CODE:
596	eio_set_max_poll_time (nseconds);	1022	eio_set_max_poll_time (nseconds);
597		1023
598	void	1024	void
599	min_parallel (int nthreads)	1025	min_parallel (unsigned int nthreads)
600	PROTOTYPE: $	1026	PROTOTYPE: $
601	CODE:	1027	CODE:
602	eio_set_min_parallel (nthreads);	1028	eio_set_min_parallel (nthreads);
603		1029
604	void	1030	void
605	max_parallel (int nthreads)	1031	max_parallel (unsigned int nthreads)
606	PROTOTYPE: $	1032	PROTOTYPE: $
607	CODE:	1033	CODE:
608	eio_set_max_parallel (nthreads);	1034	eio_set_max_parallel (nthreads);
609		1035
610	void	1036	void
611	max_idle (int nthreads)	1037	max_idle (unsigned int nthreads)
612	PROTOTYPE: $	1038	PROTOTYPE: $
613	CODE:	1039	CODE:
614	eio_set_max_idle (nthreads);	1040	eio_set_max_idle (nthreads);
615		1041
616	void	1042	void
		1043	idle_timeout (unsigned int seconds)
		1044	PROTOTYPE: $
		1045	CODE:
		1046	eio_set_idle_timeout (seconds);
		1047
		1048	void
617	max_outstanding (int maxreqs)	1049	max_outstanding (unsigned int maxreqs)
618	PROTOTYPE: $	1050	PROTOTYPE: $
619	CODE:	1051	CODE:
620	max_outstanding = maxreqs;	1052	max_outstanding = maxreqs;
621		1053
622	void	1054	void
		1055	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1056	PPCODE:
		1057	{
		1058	dREQ;
		1059
		1060	req->type = EIO_WD_OPEN;
		1061	req_set_path1 (req, pathname);
		1062
		1063	REQ_SEND;
		1064	}
		1065
		1066	void
623	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1067	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
624	PROTOTYPE: $$$;$
625	PPCODE:	1068	PPCODE:
626	{	1069	{
627	dREQ;	1070	dREQ;
628		1071
629	req->type = EIO_OPEN;	1072	req->type = EIO_OPEN;
630	req->sv1 = newSVsv (pathname);	1073	req_set_path1 (req, pathname);
631	req->ptr1 = SvPVbyte_nolen (req->sv1);
632	req->int1 = flags;	1074	req->int1 = flags;
633	req->int2 = mode;	1075	req->int2 = mode;
634		1076
635	REQ_SEND;	1077	REQ_SEND;
636	}	1078	}
637		1079
638	void	1080	void
639	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1081	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
640	PROTOTYPE: $;$
641	ALIAS:	1082	ALIAS:
642	aio_fsync = EIO_FSYNC	1083	aio_fsync = EIO_FSYNC
643	aio_fdatasync = EIO_FDATASYNC	1084	aio_fdatasync = EIO_FDATASYNC
		1085	aio_syncfs = EIO_SYNCFS
644	PPCODE:	1086	PPCODE:
645	{	1087	{
646	int fd = s_fileno_croak (fh, 0);	1088	int fd = s_fileno_croak (fh, 0);
647	dREQ;	1089	dREQ;
648		1090
649	req->type = ix;	1091	req->type = ix;
650	req->sv1 = newSVsv (fh);	1092	req->sv1 = newSVsv (fh);
651	req->int1 = fd;	1093	req->int1 = fd;
652		1094
653	REQ_SEND (req);	1095	REQ_SEND;
654	}	1096	}
655		1097
656	void	1098	void
657	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1099	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
658	PROTOTYPE: $$$$;$
659	PPCODE:	1100	PPCODE:
660	{	1101	{
661	int fd = s_fileno_croak (fh, 0);	1102	int fd = s_fileno_croak (fh, 0);
662	dREQ;	1103	dREQ;
663		1104
…		…
666	req->int1 = fd;	1107	req->int1 = fd;
667	req->offs = offset;	1108	req->offs = offset;
668	req->size = nbytes;	1109	req->size = nbytes;
669	req->int2 = flags;	1110	req->int2 = flags;
670		1111
671	REQ_SEND (req);	1112	REQ_SEND;
672	}	1113	}
673		1114
674	void	1115	void
675	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1116	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
676	PROTOTYPE: $;$
677	PPCODE:	1117	PPCODE:
678	{	1118	{
679	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
680	int fd = s_fileno_croak (fh, 0);	1119	int fd = s_fileno_croak (fh, 0);
681	dREQ;	1120	dREQ;
682		1121
683	if (close_pipe < 0)	1122	req->type = EIO_FALLOCATE;
		1123	req->sv1 = newSVsv (fh);
		1124	req->int1 = fd;
		1125	req->int2 = mode;
		1126	req->offs = offset;
		1127	req->size = len;
		1128
		1129	REQ_SEND;
		1130	}
		1131
		1132	void
		1133	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1134	PPCODE:
		1135	{
		1136	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1137	int fd = s_fileno_croak (fh, 0);
		1138	dREQ;
		1139
		1140	if (expect_false (close_fd < 0))
684	{	1141	{
685	int pipefd [2];	1142	int pipefd [2];
686		1143
		1144	if (
		1145	#ifdef _WIN32
		1146	_pipe (pipefd, 1, _O_BINARY) < 0
		1147	#else
687	if (pipe (pipefd) < 0	1148	pipe (pipefd) < 0
688	|| close (pipefd [1]) < 0
689	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1149	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1150	#endif
		1151	|| close (pipefd [1]) < 0
		1152	)
690	abort (); /*D*/	1153	abort (); /*D*/
691		1154
692	close_pipe = pipefd [0];	1155	close_fd = pipefd [0];
693	}	1156	}
694		1157
695	req->type = EIO_DUP2;	1158	req->type = EIO_DUP2;
696	req->int1 = close_pipe;	1159	req->int1 = close_fd;
697	req->sv2 = newSVsv (fh);	1160	req->sv2 = newSVsv (fh);
698	req->int2 = fd;	1161	req->int2 = fd;
699		1162
700	REQ_SEND (req);	1163	REQ_SEND;
		1164	}
		1165
		1166	void
		1167	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1168	PPCODE:
		1169	{
		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	#if HAVE_FIEMAP
		1532	/* keep our fingers crossed that the next two types are 64 bit */
		1533	req->offs = start;
		1534	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1535	req->int2 = flags;
		1536	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1537	#endif
		1538
		1539	REQ_SEND;
		1540	}
		1541
		1542	void
1000	aio_busy (double delay, SV *callback=&PL_sv_undef)	1543	aio_busy (double delay, SV *callback=&PL_sv_undef)
1001	PPCODE:	1544	PPCODE:
1002	{	1545	{
1003	dREQ;	1546	dREQ;
1004		1547
…		…
1008	REQ_SEND;	1551	REQ_SEND;
1009	}	1552	}
1010		1553
1011	void	1554	void
1012	aio_group (SV *callback=&PL_sv_undef)	1555	aio_group (SV *callback=&PL_sv_undef)
1013	PROTOTYPE: ;$
1014	PPCODE:	1556	PPCODE:
1015	{	1557	{
1016	dREQ;	1558	dREQ;
1017		1559
1018	req->type = EIO_GROUP;	1560	req->type = EIO_GROUP;
…		…
1035	REQ_SEND;	1577	REQ_SEND;
1036	}	1578	}
1037		1579
1038	int	1580	int
1039	aioreq_pri (int pri = 0)	1581	aioreq_pri (int pri = 0)
1040	PROTOTYPE: ;$
1041	CODE:	1582	CODE:
1042	RETVAL = next_pri;	1583	RETVAL = next_pri;
1043	if (items > 0)	1584	if (items > 0)
1044	{	1585	{
1045	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1586	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1057	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1598	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1058	next_pri = nice;	1599	next_pri = nice;
1059		1600
1060	void	1601	void
1061	flush ()	1602	flush ()
1062	PROTOTYPE:
1063	CODE:	1603	CODE:
1064	while (eio_nreqs ())	1604	while (eio_nreqs ())
1065	{	1605	{
1066	poll_wait ();	1606	poll_wait ();
1067	poll_cb ();	1607	poll_cb ();
1068	}	1608	}
1069		1609
1070	int	1610	int
1071	poll()	1611	poll ()
1072	PROTOTYPE:
1073	CODE:	1612	CODE:
1074	poll_wait ();	1613	poll_wait ();
1075	RETVAL = poll_cb ();	1614	RETVAL = poll_cb ();
1076	OUTPUT:	1615	OUTPUT:
1077	RETVAL	1616	RETVAL
1078		1617
1079	int	1618	int
1080	poll_fileno()	1619	poll_fileno ()
1081	PROTOTYPE:
1082	CODE:	1620	CODE:
1083	RETVAL = s_epipe_fd (&respipe);	1621	RETVAL = s_epipe_fd (&respipe);
1084	OUTPUT:	1622	OUTPUT:
1085	RETVAL	1623	RETVAL
1086		1624
1087	int	1625	int
1088	poll_cb(...)	1626	poll_cb (...)
1089	PROTOTYPE:	1627	PROTOTYPE:
1090	CODE:	1628	CODE:
1091	RETVAL = poll_cb ();	1629	RETVAL = poll_cb ();
1092	OUTPUT:	1630	OUTPUT:
1093	RETVAL	1631	RETVAL
1094		1632
1095	void	1633	void
1096	poll_wait()	1634	poll_wait ()
1097	PROTOTYPE:
1098	CODE:	1635	CODE:
1099	poll_wait ();	1636	poll_wait ();
1100		1637
1101	int	1638	int
1102	nreqs()	1639	nreqs ()
1103	PROTOTYPE:
1104	CODE:	1640	CODE:
1105	RETVAL = eio_nreqs ();	1641	RETVAL = eio_nreqs ();
1106	OUTPUT:	1642	OUTPUT:
1107	RETVAL	1643	RETVAL
1108		1644
1109	int	1645	int
1110	nready()	1646	nready ()
1111	PROTOTYPE:
1112	CODE:	1647	CODE:
1113	RETVAL = eio_nready ();	1648	RETVAL = eio_nready ();
1114	OUTPUT:	1649	OUTPUT:
1115	RETVAL	1650	RETVAL
1116		1651
1117	int	1652	int
1118	npending()	1653	npending ()
1119	PROTOTYPE:
1120	CODE:	1654	CODE:
1121	RETVAL = eio_npending ();	1655	RETVAL = eio_npending ();
1122	OUTPUT:	1656	OUTPUT:
1123	RETVAL	1657	RETVAL
1124		1658
1125	int	1659	int
1126	nthreads()	1660	nthreads ()
1127	PROTOTYPE:
1128	CODE:	1661	CODE:
1129	RETVAL = eio_nthreads ();	1662	RETVAL = eio_nthreads ();
1130	OUTPUT:	1663	OUTPUT:
1131	RETVAL	1664	RETVAL
1132		1665
1133	int	1666	int
1134	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1667	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1135	PROTOTYPE: $$$$
1136	CODE:	1668	CODE:
1137	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1138	RETVAL = posix_fadvise (fh, offset, length, advice);	1669	RETVAL = posix_fadvise (fh, offset, length, advice);
1139	#else
1140	RETVAL = errno = ENOSYS;
1141	#endif
1142	OUTPUT:	1670	OUTPUT:
1143	RETVAL	1671	RETVAL
1144		1672
1145	ssize_t	1673	IV
1146	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1674	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1147	PROTOTYPE: $$$$
1148	CODE:	1675	CODE:
1149	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1676	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1150	OUTPUT:	1677	OUTPUT:
1151	RETVAL	1678	RETVAL
1152		1679
		1680	void
		1681	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1682	PPCODE:
		1683	sv_unmagic (scalar, MMAP_MAGIC);
		1684	{
		1685	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1686	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1687	if (addr == (void *)-1)
		1688	XSRETURN_NO;
		1689
		1690	sv_force_normal (scalar);
		1691
		1692	/* we store the length in mg_obj, as namlen is I32 :/ */
		1693	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1694	->mg_obj = (SV *)length;
		1695
		1696	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1697
		1698	if (!(prot & PROT_WRITE))
		1699	SvREADONLY_on (scalar);
		1700
		1701	if (SvLEN (scalar))
		1702	Safefree (SvPVX (scalar));
		1703
		1704	SvPVX (scalar) = (char *)addr;
		1705	SvCUR_set (scalar, length);
		1706	SvLEN_set (scalar, 0);
		1707	SvPOK_only (scalar);
		1708
		1709	XSRETURN_YES;
		1710	}
		1711
		1712	void
		1713	munmap (SV *scalar)
		1714	CODE:
		1715	sv_unmagic (scalar, MMAP_MAGIC);
		1716
		1717	int
		1718	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1719	ALIAS:
		1720	mprotect = 1
		1721	CODE:
		1722	{
		1723	STRLEN svlen;
		1724	void *addr = SvPVbyte (scalar, svlen);
		1725	size_t len = SvUV (length);
		1726
		1727	if (offset < 0)
		1728	offset += svlen;
		1729
		1730	if (offset < 0 || offset > svlen)
		1731	croak ("offset outside of scalar");
		1732
		1733	if (!SvOK (length) || len + offset > svlen)
		1734	len = svlen - offset;
		1735
		1736	addr = (void *)(((intptr_t)addr) + offset);
		1737	eio_page_align (&addr, &len);
		1738
		1739	switch (ix)
		1740	{
		1741	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1742	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1743	}
		1744	}
		1745	OUTPUT:
		1746	RETVAL
		1747
		1748	int
		1749	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1750	CODE:
		1751	{
		1752	STRLEN svlen;
		1753	void *addr = SvPVbyte (scalar, svlen);
		1754	size_t len = SvUV (length);
		1755
		1756	if (offset < 0)
		1757	offset += svlen;
		1758
		1759	if (offset < 0 || offset > svlen)
		1760	croak ("offset outside of scalar");
		1761
		1762	if (!SvOK (length) || len + offset > svlen)
		1763	len = svlen - offset;
		1764
		1765	addr = (void *)(((intptr_t)addr) + offset);
		1766	eio_page_align (&addr, &len);
		1767	#if _POSIX_MEMLOCK_RANGE
		1768	RETVAL = munlock (addr, len);
		1769	#else
		1770	RETVAL = ((errno = ENOSYS), -1);
		1771	#endif
		1772	}
		1773	OUTPUT:
		1774	RETVAL
		1775
		1776	int
		1777	munlockall ()
		1778	CODE:
		1779	#if _POSIX_MEMLOCK
		1780	munlockall ();
		1781	#else
		1782	RETVAL = -1;
		1783	errno = ENOSYS;
		1784	#endif
		1785	OUTPUT:
		1786	RETVAL
		1787
1153	void _on_next_submit (SV *cb)	1788	void _on_next_submit (SV *cb)
1154	CODE:	1789	CODE:
1155	SvREFCNT_dec (on_next_submit);	1790	SvREFCNT_dec (on_next_submit);
1156	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1791	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1157		1792
1158	PROTOTYPES: DISABLE	1793	PROTOTYPES: DISABLE
1159		1794
		1795	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1796
		1797	BOOT:
		1798	{
		1799	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1800	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1801	}
		1802
		1803	void
		1804	DESTROY (SV *self)
		1805	CODE:
		1806	{
		1807	aio_wd wd = SvAIO_WD (self);
		1808	#if HAVE_AT
		1809	{
		1810	SV *callback = &PL_sv_undef;
		1811	dREQ; /* clobbers next_pri :/ */
		1812	next_pri = req->pri; /* restore next_pri */
		1813	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1814	req->type = EIO_WD_CLOSE;
		1815	req->wd = wd;
		1816	REQ_SEND;
		1817	}
		1818	#else
		1819	eio_wd_close_sync (wd);
		1820	#endif
		1821	}
		1822
1160	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1823	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1161		1824
1162	void	1825	void
1163	cancel (aio_req_ornot req)	1826	cancel (aio_req_ornot req)
1164	CODE:	1827	CODE:

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