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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.158 by root, Sat Jan 2 14:11:32 2010 UTC vs.
Revision 1.219 by root, Fri Jul 27 18:43:25 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/types.h>
		28	# include <linux/fiemap.h>
		29	# define HAVE_FIEMAP 1
		30	# endif
		31	#endif
		32
20	/* perl namespace pollution */	33	/* perl namespace pollution */
21	#undef VERSION	34	#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		35
72	/* perl stupidly overrides readdir and maybe others */	36	/* perl stupidly overrides readdir and maybe others */
73	/* with thread-unsafe versions, imagine that :( */	37	/* with thread-unsafe versions, imagine that :( */
74	#undef readdir	38	#undef readdir
75	#undef opendir	39	#undef opendir
76	#undef closedir	40	#undef closedir
77		41
		42	#ifdef _WIN32
		43
		44	// perl overrides all those nice libc functions
		45
		46	#undef malloc
		47	#undef free
		48	#undef open
		49	#undef read
		50	#undef write
		51	#undef send
		52	#undef recv
		53	#undef stat
		54	#undef lstat
		55	#undef fstat
		56	#undef truncate
		57	#undef ftruncate
		58	#undef open
		59	#undef link
		60	#undef close
		61	#undef unlink
		62	#undef mkdir
		63	#undef rmdir
		64	#undef rename
		65	#undef lseek
		66	#undef opendir
		67	#undef readdir
		68	#undef closedir
		69	#undef chmod
		70	#undef fchmod
		71	#undef dup
		72	#undef dup2
		73	#undef abort
		74	#undef pipe
		75
		76	#define EIO_STRUCT_STAT struct _stati64
78	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STATI64
79		78
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	79	#else
86	# define VAL64 NV	80
87	# define SvVAL64 SvNV	81	#include <sys/time.h>
88	# define newSVval64 newSVnv	82	#include <sys/select.h>
		83	#include <unistd.h>
		84	#include <utime.h>
		85	#include <signal.h>
		86
		87	#define EIO_STRUCT_STAT Stat_t
		88
89	#endif	89	#endif
90		90
91	/*****************************************************************************/	91	/*****************************************************************************/
92		92
93	#if __GNUC__ >= 3	93	#if __GNUC__ >= 3
…		…
103		103
104	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
105	typedef int aio_rfd; /* read file desriptor */	105	typedef int aio_rfd; /* read file desriptor */
106	typedef int aio_wfd; /* write file descriptor */	106	typedef int aio_wfd; /* write file descriptor */
107		107
108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
109		109
110	#define EIO_REQ_MEMBERS \	110	#define EIO_REQ_MEMBERS \
111	SV *callback; \	111	SV *callback; \
112	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
113	STRLEN stroffset; \	114	STRLEN stroffset; \
114	SV *self;	115	SV *self;
115		116
116	#define EIO_NO_WRAPPERS 1	117	#define EIO_NO_WRAPPERS 1
117		118
		119	#include "libeio/config.h"
118	#include "libeio/eio.h"	120	#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		121
145	static int req_invoke (eio_req *req);	122	static int req_invoke (eio_req *req);
146	#define EIO_FINISH(req) req_invoke (req)	123	#define EIO_FINISH(req) req_invoke (req)
147	static void req_destroy (eio_req *grp);	124	static void req_destroy (eio_req *grp);
148	#define EIO_DESTROY(req) req_destroy (req)	125	#define EIO_DESTROY(req) req_destroy (req)
149		126
		127	#include "libeio/eio.c"
		128
		129	#if !HAVE_POSIX_FADVISE
		130	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		131	#endif
		132
		133	#if !HAVE_POSIX_MADVISE
		134	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		135	#endif
		136
		137	#ifndef MAP_ANONYMOUS
		138	# ifdef MAP_ANON
		139	# define MAP_ANONYMOUS MAP_ANON
		140	# else
		141	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		142	# endif
		143	#endif
		144
		145	/* defines all sorts of constants to 0 unless they are already defined */
		146	#include "def0.h"
		147
		148	#ifndef makedev
		149	# define makedev(maj,min) (((maj) << 8) | (min))
		150	#endif
		151	#ifndef major
		152	# define major(dev) ((dev) >> 8)
		153	#endif
		154	#ifndef minor
		155	# define minor(dev) ((dev) & 0xff)
		156	#endif
		157
		158	#ifndef PAGESIZE
		159	# define PAGESIZE sysconf (_SC_PAGESIZE)
		160	#endif
		161
		162	/*****************************************************************************/
		163
		164	static void
		165	fiemap (eio_req *req)
		166	{
		167	req->result = -1;
		168
		169	#if HAVE_FIEMAP
		170	int count = req->int3;
		171
		172	/* heuristic: first try with 72 extents if we don't know how many, */
		173	/* as most files have (hopefully) fewer than this many extents */
		174	/* in fact, most should have <= 2, so the 72 below is probably overkill */
		175	if (count < 0)
		176	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
		177
		178	for (;;)
		179	{
		180	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		181	errno = ENOMEM;
		182	if (!fiemap)
		183	return;
		184
		185	req->ptr1 = fiemap;
		186	req->flags |= EIO_FLAG_PTR1_FREE;
		187
		188	fiemap->fm_start = req->offs;
		189	fiemap->fm_length = req->size;
		190	fiemap->fm_flags = req->int2;
		191	fiemap->fm_extent_count = count;
		192
		193	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		194	return;
		195
		196	if (req->int3 >= 0)
		197	break; /* when not autosizing we are done */
		198
		199	if (fiemap->fm_mapped_extents < count)
		200	/* either autosizing succeeded,
		201	* or the file had no extents
		202	* or we luckily had enough space */
		203	break;
		204
		205	/* some kernels overwrite fm_length, so just reset everything */
		206	fiemap->fm_start = req->offs;
		207	fiemap->fm_length = req->size;
		208	fiemap->fm_flags = req->int2;
		209	fiemap->fm_extent_count = 0;
		210
		211	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		212	return;
		213
		214	/* to work around a kernel bug, we allocate one more */
		215	count = fiemap->fm_mapped_extents + 1;
		216
		217	free (fiemap);
		218	}
		219
		220	req->result = 0;
		221
		222	#else
		223	errno = ENOSYS;
		224	#endif
		225	}
		226
		227	/*****************************************************************************/
		228
150	enum {	229	enum {
151	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	230	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
152	};	231	};
153		232
154	#include "libeio/eio.c"
155
156	typedef eio_req *aio_req;	233	typedef eio_req *aio_req;
157	typedef eio_req *aio_req_ornot;	234	typedef eio_req *aio_req_ornot;
		235	typedef eio_wd aio_wd;
158		236
159	static SV *on_next_submit;	237	static SV *on_next_submit;
160	static int next_pri = EIO_PRI_DEFAULT;	238	static int next_pri = EIO_PRI_DEFAULT;
161	static int max_outstanding;	239	static int max_outstanding;
162		240
163	static s_epipe respipe;	241	static s_epipe respipe;
164		242
165	static void req_destroy (aio_req req);	243	static void req_destroy (aio_req req);
166	static void req_cancel (aio_req req);	244	static void req_cancel (aio_req req);
167		245
168	static void want_poll (void)	246	static void
		247	want_poll (void)
169	{	248	{
170	/* write a dummy byte to the pipe so fh becomes ready */	249	/* write a dummy byte to the pipe so fh becomes ready */
171	s_epipe_signal (&respipe);	250	s_epipe_signal (&respipe);
172	}	251	}
173		252
174	static void done_poll (void)	253	static void
		254	done_poll (void)
175	{	255	{
176	/* read any signals sent by the worker threads */	256	/* read any signals sent by the worker threads */
177	s_epipe_drain (&respipe);	257	s_epipe_drain (&respipe);
178	}	258	}
179		259
180	/* must be called at most once */	260	/* must be called at most once */
		261	static SV *
181	static SV *req_sv (aio_req req, HV *stash)	262	req_sv (aio_req req, HV *stash)
182	{	263	{
183	if (!req->self)	264	if (!req->self)
184	{	265	{
185	req->self = (SV *)newHV ();	266	req->self = (SV *)newHV ();
186	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	267	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
187	}	268	}
188		269
189	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	270	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
190	}	271	}
191		272
192	static aio_req SvAIO_REQ (SV *sv)	273	static SV *
		274	newSVaio_wd (aio_wd wd)
		275	{
		276	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		277	}
		278
		279	static aio_req
		280	SvAIO_REQ (SV *sv)
193	{	281	{
194	MAGIC *mg;	282	MAGIC *mg;
195		283
196	if (!SvROK (sv)	284	if (!SvROK (sv)
		285	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
197	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	286	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
198	&& SvSTASH (SvRV (sv)) != aio_req_stash	287	&& SvSTASH (SvRV (sv)) != aio_req_stash
199	&& !sv_derived_from (sv, "IO::AIO::REQ")))	288	&& !sv_derived_from (sv, "IO::AIO::REQ")))
200	croak ("object of class IO::AIO::REQ expected");	289	croak ("object of class IO::AIO::REQ expected");
201		290
202	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	291	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
203		292
204	return mg ? (aio_req)mg->mg_ptr : 0;	293	return mg ? (aio_req)mg->mg_ptr : 0;
205	}	294	}
206		295
		296	static aio_wd
		297	SvAIO_WD (SV *sv)
		298	{
		299	if (!SvROK (sv)
		300	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		301	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		302	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		303
		304	return (aio_wd)(long)SvIVX (SvRV (sv));
		305	}
		306
		307	static void
207	static void aio_grp_feed (aio_req grp)	308	aio_grp_feed (aio_req grp)
208	{	309	{
209	if (grp->sv2 && SvOK (grp->sv2))	310	if (grp->sv2 && SvOK (grp->sv2))
210	{	311	{
211	dSP;	312	dSP;
212		313
…		…
220	FREETMPS;	321	FREETMPS;
221	LEAVE;	322	LEAVE;
222	}	323	}
223	}	324	}
224		325
		326	static void
225	static void req_submit (eio_req *req)	327	req_submit (eio_req *req)
226	{	328	{
227	eio_submit (req);	329	eio_submit (req);
228		330
229	if (expect_false (on_next_submit))	331	if (expect_false (on_next_submit))
230	{	332	{
…		…
237	PUTBACK;	339	PUTBACK;
238	call_sv (cb, G_DISCARD | G_EVAL);	340	call_sv (cb, G_DISCARD | G_EVAL);
239	}	341	}
240	}	342	}
241		343
		344	static int
242	static int req_invoke (eio_req *req)	345	req_invoke (eio_req *req)
243	{	346	{
244	dSP;
245
246	if (req->flags & FLAG_SV2_RO_OFF)	347	if (req->flags & FLAG_SV2_RO_OFF)
247	SvREADONLY_off (req->sv2);	348	SvREADONLY_off (req->sv2);
248		349
249	if (!EIO_CANCELLED (req) && req->callback)	350	if (!EIO_CANCELLED (req) && req->callback)
250	{	351	{
		352	dSP;
		353	static SV *sv_result_cache; /* caches the result integer SV */
		354	SV *sv_result;
		355
251	ENTER;	356	ENTER;
252	SAVETMPS;	357	SAVETMPS;
253	PUSHMARK (SP);	358	PUSHMARK (SP);
254	EXTEND (SP, 1);	359	EXTEND (SP, 1);
255		360
		361	/* do not recreate the result IV from scratch each time */
		362	if (expect_true (sv_result_cache))
		363	{
		364	sv_result = sv_result_cache; sv_result_cache = 0;
		365	SvIV_set (sv_result, req->result);
		366	SvIOK_only (sv_result);
		367	}
		368	else
		369	{
		370	sv_result = newSViv (req->result);
		371	SvREADONLY_on (sv_result);
		372	}
		373
256	switch (req->type)	374	switch (req->type)
257	{	375	{
		376	case EIO_WD_OPEN:
		377	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		378	break;
		379
258	case EIO_READDIR:	380	case EIO_READDIR:
259	{	381	{
260	SV *rv = &PL_sv_undef;	382	SV *rv = &PL_sv_undef;
261		383
262	if (req->result >= 0)	384	if (req->result >= 0)
…		…
345		467
346	PUSHs (fh);	468	PUSHs (fh);
347	}	469	}
348	break;	470	break;
349		471
		472	case EIO_STATVFS:
		473	case EIO_FSTATVFS:
		474	{
		475	SV *rv = &PL_sv_undef;
		476
		477	#ifndef _WIN32
		478	if (req->result >= 0)
		479	{
		480	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		481	HV *hv = newHV ();
		482
		483	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		484
		485	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		486	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		487	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		488	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		489	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		490	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		491	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		492	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		493	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		494	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		495	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		496	}
		497	#endif
		498
		499	PUSHs (rv);
		500	}
		501
		502	break;
		503
350	case EIO_GROUP:	504	case EIO_GROUP:
351	req->int1 = 2; /* mark group as finished */	505	req->int1 = 2; /* mark group as finished */
352		506
353	if (req->sv1)	507	if (req->sv1)
354	{	508	{
…		…
364	case EIO_NOP:	518	case EIO_NOP:
365	case EIO_BUSY:	519	case EIO_BUSY:
366	break;	520	break;
367		521
368	case EIO_READLINK:	522	case EIO_READLINK:
		523	case EIO_REALPATH:
369	if (req->result > 0)	524	if (req->result > 0)
370	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	525	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
371	break;	526	break;
372		527
373	case EIO_STAT:	528	case EIO_STAT:
374	case EIO_LSTAT:	529	case EIO_LSTAT:
375	case EIO_FSTAT:	530	case EIO_FSTAT:
376	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	531	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		532
377	PL_laststatval = req->result;	533	if (!(PL_laststatval = req->result))
		534	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
378	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	535	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
379	PUSHs (sv_2mortal (newSViv (req->result)));	536
		537	PUSHs (sv_result);
		538	break;
		539
		540	case EIO_SEEK:
		541	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
380	break;	542	break;
381		543
382	case EIO_READ:	544	case EIO_READ:
383	{	545	{
384	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	546	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
385	*SvEND (req->sv2) = 0;	547	*SvEND (req->sv2) = 0;
386	SvPOK_only (req->sv2);	548	SvPOK_only (req->sv2);
387	SvSETMAGIC (req->sv2);	549	SvSETMAGIC (req->sv2);
388	PUSHs (sv_2mortal (newSViv (req->result)));	550	PUSHs (sv_result);
389	}	551	}
390	break;	552	break;
391		553
392	case EIO_DUP2:	554	case EIO_CUSTOM:
		555	if (req->feed == fiemap)
		556	{
		557	#if HAVE_FIEMAP
		558	if (!req->result)
		559	{
		560	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		561
		562	if (fiemap->fm_extent_count)
		563	{
		564	AV *av = newAV ();
		565	int i;
		566
		567	while (fiemap->fm_mapped_extents)
		568	{
		569	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		570	AV *ext_av = newAV ();
		571
		572	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		573	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		574	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		575	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		576
		577	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		578	}
		579
		580	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		581	}
		582	else
		583	{
		584	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		585	PUSHs (sv_result);
		586	}
		587	}
		588	#endif
		589	}
		590	else
		591	PUSHs (sv_result);
		592	break;
		593
		594	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
393	if (req->result > 0)	595	if (req->result > 0)
394	req->result = 0;	596	SvIV_set (sv_result, 0);
395	/* FALLTHROUGH */	597	/* FALLTHROUGH */
396		598
397	default:	599	default:
398	PUSHs (sv_2mortal (newSViv (req->result)));	600	PUSHs (sv_result);
399	break;	601	break;
400	}	602	}
401		603
402	errno = req->errorno;	604	errno = req->errorno;
403		605
404	PUTBACK;	606	PUTBACK;
405	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	607	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
406	SPAGAIN;	608	SPAGAIN;
407		609
		610	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		611	SvREFCNT_dec (sv_result);
		612	else
		613	sv_result_cache = sv_result;
		614
408	FREETMPS;	615	FREETMPS;
409	LEAVE;	616	LEAVE;
410		617
411	PUTBACK;	618	PUTBACK;
412	}	619	}
413		620
414	return !!SvTRUE (ERRSV);	621	return !!SvTRUE (ERRSV);
415	}	622	}
416		623
		624	static void
417	static void req_destroy (aio_req req)	625	req_destroy (aio_req req)
418	{	626	{
419	if (req->self)	627	if (req->self)
420	{	628	{
421	sv_unmagic (req->self, PERL_MAGIC_ext);	629	sv_unmagic (req->self, PERL_MAGIC_ext);
422	SvREFCNT_dec (req->self);	630	SvREFCNT_dec (req->self);
423	}	631	}
424		632
425	SvREFCNT_dec (req->sv1);	633	SvREFCNT_dec (req->sv1);
426	SvREFCNT_dec (req->sv2);	634	SvREFCNT_dec (req->sv2);
		635	SvREFCNT_dec (req->sv3);
		636	SvREFCNT_dec (req->sv4);
427	SvREFCNT_dec (req->callback);	637	SvREFCNT_dec (req->callback);
428		638
429	Safefree (req);	639	free (req);
430	}	640	}
431		641
		642	static void
432	static void req_cancel_subs (aio_req grp)	643	req_cancel_subs (aio_req grp)
433	{	644	{
434	aio_req sub;
435
436	if (grp->type != EIO_GROUP)	645	if (grp->type != EIO_GROUP)
437	return;	646	return;
438		647
439	SvREFCNT_dec (grp->sv2);	648	SvREFCNT_dec (grp->sv2);
440	grp->sv2 = 0;	649	grp->sv2 = 0;
441		650
442	eio_grp_cancel (grp);	651	eio_grp_cancel (grp);
443	}	652	}
444		653
445	static void	654	static void ecb_cold
446	create_respipe (void)	655	create_respipe (void)
447	{	656	{
448	if (s_epipe_renew (&respipe))	657	if (s_epipe_renew (&respipe))
449	croak ("IO::AIO: unable to initialize result pipe");	658	croak ("IO::AIO: unable to initialize result pipe");
450	}	659	}
451		660
452	static void poll_wait (void)	661	static void
		662	poll_wait (void)
453	{	663	{
454	while (eio_nreqs ())	664	while (eio_nreqs ())
455	{	665	{
456	int size;	666	int size;
457		667
…		…
466		676
467	s_epipe_wait (&respipe);	677	s_epipe_wait (&respipe);
468	}	678	}
469	}	679	}
470		680
471	static int poll_cb (void)	681	static int
		682	poll_cb (void)
472	{	683	{
473	for (;;)	684	for (;;)
474	{	685	{
475	int res = eio_poll ();	686	int res = eio_poll ();
476		687
…		…
482		693
483	poll_wait ();	694	poll_wait ();
484	}	695	}
485	}	696	}
486		697
487	static void atfork_child (void)	698	static void ecb_cold
		699	reinit (void)
488	{	700	{
489	create_respipe ();	701	create_respipe ();
		702
		703	if (eio_init (want_poll, done_poll) < 0)
		704	croak ("IO::AIO: unable to initialise eio library");
490	}	705	}
		706
		707	/*****************************************************************************/
		708
		709	#if !_POSIX_MAPPED_FILES
		710	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		711	# define munmap(addr,length) EIO_ENOSYS ()
		712	#endif
		713
		714	#if !_POSIX_MEMORY_PROTECTION
		715	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		716	# define PROT_NONE 0
		717	# define PROT_WRITE 0
		718	# define MAP_PRIVATE 0
		719	# define MAP_SHARED 0
		720	# define MAP_FIXED 0
		721	#endif
		722
		723	#define MMAP_MAGIC PERL_MAGIC_ext
		724
		725	static int ecb_cold
		726	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		727	{
		728	int old_errno = errno;
		729	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		730	errno = old_errno;
		731
		732	mg->mg_obj = 0; /* just in case */
		733
		734	SvREADONLY_off (sv);
		735
		736	if (SvPVX (sv) != mg->mg_ptr)
		737	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		738
		739	SvCUR_set (sv, 0);
		740	SvPVX (sv) = 0;
		741	SvOK_off (sv);
		742
		743	return 0;
		744	}
		745
		746	static MGVTBL mmap_vtbl = {
		747	0, 0, 0, 0, mmap_free
		748	};
		749
		750	/*****************************************************************************/
491		751
492	static SV *	752	static SV *
493	get_cb (SV *cb_sv)	753	get_cb (SV *cb_sv)
494	{	754	{
495	SvGETMAGIC (cb_sv);	755	SvGETMAGIC (cb_sv);
496	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	756	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
497	}	757	}
498		758
		759	static aio_req ecb_noinline
		760	dreq (SV *callback)
		761	{
		762	SV *cb_cv;
		763	aio_req req;
		764	int req_pri = next_pri;
		765	next_pri = EIO_PRI_DEFAULT;
		766
		767	cb_cv = get_cb (callback);
		768
		769	req = calloc (sizeof (*req), 1);
		770	if (!req)
		771	croak ("out of memory during eio_req allocation");
		772
		773	req->callback = SvREFCNT_inc (cb_cv);
		774	req->pri = req_pri;
		775
		776	return req;
		777	}
		778
499	#define dREQ \	779	#define dREQ \
500	SV *cb_cv; \	780	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		781
514	#define REQ_SEND \	782	#define REQ_SEND \
515	PUTBACK; \	783	PUTBACK; \
516	req_submit (req); \	784	req_submit (req); \
517	SPAGAIN; \	785	SPAGAIN; \
518	\	786	\
519	if (GIMME_V != G_VOID) \	787	if (GIMME_V != G_VOID) \
520	XPUSHs (req_sv (req, aio_req_stash));	788	XPUSHs (req_sv (req, aio_req_stash));
521		789
		790	ecb_inline void
		791	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		792	{
		793	if (expect_false (SvROK (path)))
		794	{
		795	SV *rv = SvRV (path);
		796	SV *wdob;
		797
		798	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		799	{
		800	path = AvARRAY (rv)[1];
		801	wdob = AvARRAY (rv)[0];
		802
		803	if (SvOK (wdob))
		804	{
		805	*wd = SvAIO_WD (wdob);
		806	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		807	}
		808	else
		809	*wd = EIO_INVALID_WD;
		810	}
		811	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		812	{
		813	*wd = (aio_wd)(long)SvIVX (rv);
		814	*wdsv = SvREFCNT_inc_NN (rv);
		815	*ptr = ".";
		816	return; /* path set to "." */
		817	}
		818	else
		819	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		820	}
		821
		822	*pathsv = newSVsv (path);
		823	*ptr = SvPVbyte_nolen (*pathsv);
		824	}
		825
		826	static void ecb_noinline
		827	req_set_path1 (aio_req req, SV *path)
		828	{
		829	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		830	}
		831
		832	static void ecb_noinline
		833	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		834	{
		835	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		836
		837	switch (SvTYPE (rv))
		838	{
		839	case SVt_PVIO:
		840	case SVt_PVLV:
		841	case SVt_PVGV:
		842	req->type = type_fh;
		843	req->sv1 = newSVsv (fh_or_path);
		844	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		845	break;
		846
		847	default:
		848	req->type = type_path;
		849	req_set_path1 (req, fh_or_path);
		850	break;
		851	}
		852	}
		853
		854	XS(boot_IO__AIO) ecb_cold;
		855
522	MODULE = IO::AIO PACKAGE = IO::AIO	856	MODULE = IO::AIO PACKAGE = IO::AIO
523		857
524	PROTOTYPES: ENABLE	858	PROTOTYPES: ENABLE
525		859
526	BOOT:	860	BOOT:
527	{	861	{
528	static const struct {	862	static const struct {
529	const char *name;	863	const char *name;
530	IV iv;	864	IV iv;
531	} *civ, const_iv[] = {	865	} *civ, const_iv[] = {
532	# define const_iv(name, value) { # name, (IV) value },	866	# define const_niv(name, value) { # name, (IV) value },
		867	# define const_iv(name) { # name, (IV) name },
533	# define const_eio(name) { # name, (IV) EIO_ ## name },	868	# define const_eio(name) { # name, (IV) EIO_ ## name },
534	const_iv (EXDEV , EXDEV)	869
		870	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		871
535	const_iv (ENOSYS , ENOSYS)	872	const_iv (ENOSYS)
		873	const_iv (EXDEV)
		874	const_iv (EBADR)
		875
536	const_iv (O_RDONLY, O_RDONLY)	876	const_iv (O_RDONLY)
537	const_iv (O_WRONLY, O_WRONLY)	877	const_iv (O_WRONLY)
		878	const_iv (O_RDWR)
538	const_iv (O_CREAT , O_CREAT)	879	const_iv (O_CREAT)
539	const_iv (O_TRUNC , O_TRUNC)	880	const_iv (O_TRUNC)
540	#ifndef _WIN32	881	const_iv (O_EXCL)
		882	const_iv (O_APPEND)
		883
		884	const_iv (O_ASYNC)
		885	const_iv (O_DIRECT)
		886	const_iv (O_NOATIME)
		887
		888	const_iv (O_CLOEXEC)
		889	const_iv (O_NOCTTY)
		890	const_iv (O_NOFOLLOW)
		891	const_iv (O_NONBLOCK)
		892	const_iv (O_EXEC)
		893	const_iv (O_SEARCH)
		894	const_iv (O_DIRECTORY)
		895	const_iv (O_DSYNC)
		896	const_iv (O_RSYNC)
		897	const_iv (O_SYNC)
		898	const_iv (O_TTY_INIT)
		899
541	const_iv (S_IFIFO , S_IFIFO)	900	const_iv (S_IFIFO)
542	#endif	901	const_iv (S_IFCHR)
		902	const_iv (S_IFBLK)
		903	const_iv (S_IFLNK)
		904	const_iv (S_IFREG)
		905	const_iv (S_IFDIR)
		906	const_iv (S_IFWHT)
		907	const_iv (S_IFSOCK)
		908	const_iv (S_IFMT)
		909
543	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	910	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
544	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	911	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
545	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	912	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
546	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	913	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
547	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	914	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
548	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	915	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		916
		917	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		918	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		919	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		920	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		921	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		922
		923	const_iv (ST_RDONLY)
		924	const_iv (ST_NOSUID)
		925	const_iv (ST_NODEV)
		926	const_iv (ST_NOEXEC)
		927	const_iv (ST_SYNCHRONOUS)
		928	const_iv (ST_MANDLOCK)
		929	const_iv (ST_WRITE)
		930	const_iv (ST_APPEND)
		931	const_iv (ST_IMMUTABLE)
		932	const_iv (ST_NOATIME)
		933	const_iv (ST_NODIRATIME)
		934	const_iv (ST_RELATIME)
		935
		936	const_iv (PROT_NONE)
		937	const_iv (PROT_EXEC)
		938	const_iv (PROT_READ)
		939	const_iv (PROT_WRITE)
		940
		941	/*const_iv (MAP_FIXED)*/
		942	const_iv (MAP_PRIVATE)
		943	const_iv (MAP_SHARED)
		944	const_iv (MAP_ANONYMOUS)
		945
		946	/* linuxish */
		947	const_iv (MAP_HUGETLB)
		948	const_iv (MAP_LOCKED)
		949	const_iv (MAP_NORESERVE)
		950	const_iv (MAP_POPULATE)
		951	const_iv (MAP_NONBLOCK)
		952
		953	const_iv (FIEMAP_FLAG_SYNC)
		954	const_iv (FIEMAP_FLAG_XATTR)
		955	const_iv (FIEMAP_FLAGS_COMPAT)
		956	const_iv (FIEMAP_EXTENT_LAST)
		957	const_iv (FIEMAP_EXTENT_UNKNOWN)
		958	const_iv (FIEMAP_EXTENT_DELALLOC)
		959	const_iv (FIEMAP_EXTENT_ENCODED)
		960	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		961	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		962	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		963	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		964	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		965	const_iv (FIEMAP_EXTENT_MERGED)
		966	const_iv (FIEMAP_EXTENT_SHARED)
		967
		968	const_iv (SPLICE_F_MOVE)
		969	const_iv (SPLICE_F_NONBLOCK)
		970	const_iv (SPLICE_F_MORE)
		971	const_iv (SPLICE_F_GIFT)
		972
		973	const_iv (SEEK_DATA)
		974	const_iv (SEEK_HOLE)
		975
		976	/* libeio constants */
		977	const_eio (SEEK_SET)
		978	const_eio (SEEK_CUR)
		979	const_eio (SEEK_END)
		980
		981	const_eio (MCL_FUTURE)
		982	const_eio (MCL_CURRENT)
549		983
550	const_eio (MS_ASYNC)	984	const_eio (MS_ASYNC)
551	const_eio (MS_INVALIDATE)	985	const_eio (MS_INVALIDATE)
552	const_eio (MS_SYNC)	986	const_eio (MS_SYNC)
553		987
554	const_eio (MT_MODIFY)	988	const_eio (MT_MODIFY)
555		989
556	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	990	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
557	const_eio (SYNC_FILE_RANGE_WRITE)	991	const_eio (SYNC_FILE_RANGE_WRITE)
558	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	992	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		993
		994	const_eio (FALLOC_FL_KEEP_SIZE)
		995	const_eio (FALLOC_FL_PUNCH_HOLE)
559		996
560	const_eio (READDIR_DENTS)	997	const_eio (READDIR_DENTS)
561	const_eio (READDIR_DIRS_FIRST)	998	const_eio (READDIR_DIRS_FIRST)
562	const_eio (READDIR_STAT_ORDER)	999	const_eio (READDIR_STAT_ORDER)
563	const_eio (READDIR_FOUND_UNKNOWN)	1000	const_eio (READDIR_FOUND_UNKNOWN)
…		…
574	};	1011	};
575		1012
576	aio_stash = gv_stashpv ("IO::AIO" , 1);	1013	aio_stash = gv_stashpv ("IO::AIO" , 1);
577	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1014	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
578	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1015	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1016	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
579		1017
580	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1018	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
581	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1019	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
582		1020
583	create_respipe ();	1021	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
584		1022
585	if (eio_init (want_poll, done_poll) < 0)	1023	reinit ();
586	croak ("IO::AIO: unable to initialise eio library");
587
588	/* atfork child called in fifo order, so before eio's handler */
589	X_THREAD_ATFORK (0, 0, atfork_child);
590	}	1024	}
591		1025
592	void	1026	void
		1027	reinit ()
		1028	PROTOTYPE:
		1029
		1030	void
593	max_poll_reqs (int nreqs)	1031	max_poll_reqs (unsigned int nreqs)
594	PROTOTYPE: $	1032	PROTOTYPE: $
595	CODE:	1033	CODE:
596	eio_set_max_poll_reqs (nreqs);	1034	eio_set_max_poll_reqs (nreqs);
597		1035
598	void	1036	void
…		…
600	PROTOTYPE: $	1038	PROTOTYPE: $
601	CODE:	1039	CODE:
602	eio_set_max_poll_time (nseconds);	1040	eio_set_max_poll_time (nseconds);
603		1041
604	void	1042	void
605	min_parallel (int nthreads)	1043	min_parallel (unsigned int nthreads)
606	PROTOTYPE: $	1044	PROTOTYPE: $
607	CODE:	1045	CODE:
608	eio_set_min_parallel (nthreads);	1046	eio_set_min_parallel (nthreads);
609		1047
610	void	1048	void
611	max_parallel (int nthreads)	1049	max_parallel (unsigned int nthreads)
612	PROTOTYPE: $	1050	PROTOTYPE: $
613	CODE:	1051	CODE:
614	eio_set_max_parallel (nthreads);	1052	eio_set_max_parallel (nthreads);
615		1053
616	void	1054	void
617	max_idle (int nthreads)	1055	max_idle (unsigned int nthreads)
618	PROTOTYPE: $	1056	PROTOTYPE: $
619	CODE:	1057	CODE:
620	eio_set_max_idle (nthreads);	1058	eio_set_max_idle (nthreads);
621		1059
622	void	1060	void
		1061	idle_timeout (unsigned int seconds)
		1062	PROTOTYPE: $
		1063	CODE:
		1064	eio_set_idle_timeout (seconds);
		1065
		1066	void
623	max_outstanding (int maxreqs)	1067	max_outstanding (unsigned int maxreqs)
624	PROTOTYPE: $	1068	PROTOTYPE: $
625	CODE:	1069	CODE:
626	max_outstanding = maxreqs;	1070	max_outstanding = maxreqs;
627		1071
628	void	1072	void
		1073	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1074	PPCODE:
		1075	{
		1076	dREQ;
		1077
		1078	req->type = EIO_WD_OPEN;
		1079	req_set_path1 (req, pathname);
		1080
		1081	REQ_SEND;
		1082	}
		1083
		1084	void
629	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1085	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
630	PROTOTYPE: $$$;$
631	PPCODE:	1086	PPCODE:
632	{	1087	{
633	dREQ;	1088	dREQ;
634		1089
635	req->type = EIO_OPEN;	1090	req->type = EIO_OPEN;
636	req->sv1 = newSVsv (pathname);	1091	req_set_path1 (req, pathname);
637	req->ptr1 = SvPVbyte_nolen (req->sv1);
638	req->int1 = flags;	1092	req->int1 = flags;
639	req->int2 = mode;	1093	req->int2 = mode;
640		1094
641	REQ_SEND;	1095	REQ_SEND;
642	}	1096	}
643		1097
644	void	1098	void
645	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1099	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
646	PROTOTYPE: $;$
647	ALIAS:	1100	ALIAS:
648	aio_fsync = EIO_FSYNC	1101	aio_fsync = EIO_FSYNC
649	aio_fdatasync = EIO_FDATASYNC	1102	aio_fdatasync = EIO_FDATASYNC
		1103	aio_syncfs = EIO_SYNCFS
650	PPCODE:	1104	PPCODE:
651	{	1105	{
652	int fd = s_fileno_croak (fh, 0);	1106	int fd = s_fileno_croak (fh, 0);
653	dREQ;	1107	dREQ;
654		1108
655	req->type = ix;	1109	req->type = ix;
656	req->sv1 = newSVsv (fh);	1110	req->sv1 = newSVsv (fh);
657	req->int1 = fd;	1111	req->int1 = fd;
658		1112
659	REQ_SEND (req);	1113	REQ_SEND;
660	}	1114	}
661		1115
662	void	1116	void
663	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1117	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
664	PROTOTYPE: $$$$;$
665	PPCODE:	1118	PPCODE:
666	{	1119	{
667	int fd = s_fileno_croak (fh, 0);	1120	int fd = s_fileno_croak (fh, 0);
668	dREQ;	1121	dREQ;
669		1122
…		…
672	req->int1 = fd;	1125	req->int1 = fd;
673	req->offs = offset;	1126	req->offs = offset;
674	req->size = nbytes;	1127	req->size = nbytes;
675	req->int2 = flags;	1128	req->int2 = flags;
676		1129
677	REQ_SEND (req);	1130	REQ_SEND;
678	}	1131	}
679		1132
680	void	1133	void
681	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1134	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
682	PROTOTYPE: $;$
683	PPCODE:	1135	PPCODE:
684	{	1136	{
685	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
686	int fd = s_fileno_croak (fh, 0);	1137	int fd = s_fileno_croak (fh, 0);
687	dREQ;	1138	dREQ;
688		1139
689	if (close_pipe < 0)	1140	req->type = EIO_FALLOCATE;
		1141	req->sv1 = newSVsv (fh);
		1142	req->int1 = fd;
		1143	req->int2 = mode;
		1144	req->offs = offset;
		1145	req->size = len;
		1146
		1147	REQ_SEND;
		1148	}
		1149
		1150	void
		1151	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1152	PPCODE:
		1153	{
		1154	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1155	int fd = s_fileno_croak (fh, 0);
		1156	dREQ;
		1157
		1158	if (expect_false (close_fd < 0))
690	{	1159	{
691	int pipefd [2];	1160	int pipefd [2];
692		1161
		1162	if (
		1163	#ifdef _WIN32
		1164	_pipe (pipefd, 1, _O_BINARY) < 0
		1165	#else
693	if (pipe (pipefd) < 0	1166	pipe (pipefd) < 0
694	|| close (pipefd [1]) < 0
695	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1167	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1168	#endif
		1169	|| close (pipefd [1]) < 0
		1170	)
696	abort (); /*D*/	1171	abort (); /*D*/
697		1172
698	close_pipe = pipefd [0];	1173	close_fd = pipefd [0];
699	}	1174	}
700		1175
701	req->type = EIO_DUP2;	1176	req->type = EIO_DUP2;
702	req->int1 = close_pipe;	1177	req->int1 = close_fd;
703	req->sv2 = newSVsv (fh);	1178	req->sv2 = newSVsv (fh);
704	req->int2 = fd;	1179	req->int2 = fd;
705		1180
706	REQ_SEND (req);	1181	REQ_SEND;
		1182	}
		1183
		1184	void
		1185	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1186	PPCODE:
		1187	{
		1188	int fd = s_fileno_croak (fh, 0);
		1189	dREQ;
		1190
		1191	req->type = EIO_SEEK;
		1192	req->sv1 = newSVsv (fh);
		1193	req->int1 = fd;
		1194	req->offs = SvVAL64 (offset);
		1195	req->int2 = whence;
		1196
		1197	REQ_SEND;
707	}	1198	}
708		1199
709	void	1200	void
710	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1201	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
711	ALIAS:	1202	ALIAS:
712	aio_read = EIO_READ	1203	aio_read = EIO_READ
713	aio_write = EIO_WRITE	1204	aio_write = EIO_WRITE
714	PROTOTYPE: $$$$$;$
715	PPCODE:	1205	PPCODE:
716	{	1206	{
717	STRLEN svlen;	1207	STRLEN svlen;
718	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1208	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
719	char *svptr = SvPVbyte (data, svlen);	1209	char *svptr = SvPVbyte (data, svlen);
…		…
733	}	1223	}
734	else	1224	else
735	{	1225	{
736	/* read: check type and grow scalar as necessary */	1226	/* read: check type and grow scalar as necessary */
737	SvUPGRADE (data, SVt_PV);	1227	SvUPGRADE (data, SVt_PV);
		1228	if (SvLEN (data) >= SvCUR (data))
738	svptr = SvGROW (data, len + dataoffset + 1);	1229	svptr = SvGROW (data, len + dataoffset + 1);
		1230	else if (SvCUR (data) < len + dataoffset)
		1231	croak ("length + dataoffset outside of scalar, and cannot grow");
739	}	1232	}
740		1233
741	{	1234	{
742	dREQ;	1235	dREQ;
743		1236
…		…
759	REQ_SEND;	1252	REQ_SEND;
760	}	1253	}
761	}	1254	}
762		1255
763	void	1256	void
764	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1257	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
765	PROTOTYPE: $$;$	1258	ALIAS:
		1259	aio_readlink = EIO_READLINK
		1260	aio_realpath = EIO_REALPATH
766	PPCODE:	1261	PPCODE:
767	{	1262	{
768	SV *data;
769	dREQ;	1263	dREQ;
770		1264
771	req->type = EIO_READLINK;	1265	req->type = ix;
772	req->sv1 = newSVsv (path);	1266	req_set_path1 (req, pathname);
773	req->ptr1 = SvPVbyte_nolen (req->sv1);
774		1267
775	REQ_SEND;	1268	REQ_SEND;
776	}	1269	}
777		1270
778	void	1271	void
779	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1272	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
780	PROTOTYPE: $$$$;$
781	PPCODE:	1273	PPCODE:
782	{	1274	{
783	int ifd = s_fileno_croak (in_fh , 0);	1275	int ifd = s_fileno_croak (in_fh , 0);
784	int ofd = s_fileno_croak (out_fh, 1);	1276	int ofd = s_fileno_croak (out_fh, 1);
785	dREQ;	1277	dREQ;
…		…
795	REQ_SEND;	1287	REQ_SEND;
796	}	1288	}
797		1289
798	void	1290	void
799	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1291	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
800	PROTOTYPE: $$$;$
801	PPCODE:	1292	PPCODE:
802	{	1293	{
803	int fd = s_fileno_croak (fh, 0);	1294	int fd = s_fileno_croak (fh, 0);
804	dREQ;	1295	dREQ;
805		1296
…		…
813	}	1304	}
814		1305
815	void	1306	void
816	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1307	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
817	ALIAS:	1308	ALIAS:
818	aio_stat = EIO_STAT	1309	aio_stat = EIO_STAT
819	aio_lstat = EIO_LSTAT	1310	aio_lstat = EIO_LSTAT
		1311	aio_statvfs = EIO_STATVFS
820	PPCODE:	1312	PPCODE:
821	{	1313	{
822	dREQ;	1314	dREQ;
823		1315
824	req->sv1 = newSVsv (fh_or_path);	1316	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
825
826	if (SvPOK (req->sv1))
827	{
828	req->type = ix;
829	req->ptr1 = SvPVbyte_nolen (req->sv1);
830	}
831	else
832	{
833	req->type = EIO_FSTAT;
834	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
835	}
836		1317
837	REQ_SEND;	1318	REQ_SEND;
838	}	1319	}
		1320
		1321	UV
		1322	major (UV dev)
		1323	ALIAS:
		1324	minor = 1
		1325	CODE:
		1326	RETVAL = ix ? major (dev) : minor (dev);
		1327	OUTPUT:
		1328	RETVAL
		1329
		1330	UV
		1331	makedev (UV maj, UV min)
		1332	CODE:
		1333	RETVAL = makedev (maj, min);
		1334	OUTPUT:
		1335	RETVAL
839		1336
840	void	1337	void
841	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1338	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
842	PPCODE:	1339	PPCODE:
843	{	1340	{
844	dREQ;	1341	dREQ;
845		1342
846	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1343	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
847	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1344	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
848	req->sv1 = newSVsv (fh_or_path);	1345	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
849
850	if (SvPOK (req->sv1))
851	{
852	req->type = EIO_UTIME;
853	req->ptr1 = SvPVbyte_nolen (req->sv1);
854	}
855	else
856	{
857	req->type = EIO_FUTIME;
858	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
859	}
860		1346
861	REQ_SEND;	1347	REQ_SEND;
862	}	1348	}
863		1349
864	void	1350	void
865	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1351	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
866	PPCODE:	1352	PPCODE:
867	{	1353	{
868	dREQ;	1354	dREQ;
869		1355
870	req->sv1 = newSVsv (fh_or_path);
871	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1356	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
872		1357	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
873	if (SvPOK (req->sv1))
874	{
875	req->type = EIO_TRUNCATE;
876	req->ptr1 = SvPVbyte_nolen (req->sv1);
877	}
878	else
879	{
880	req->type = EIO_FTRUNCATE;
881	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
882	}
883		1358
884	REQ_SEND;	1359	REQ_SEND;
885	}	1360	}
886		1361
887	void	1362	void
888	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1363	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
889	ALIAS:
890	aio_chmod = EIO_CHMOD
891	aio_mkdir = EIO_MKDIR
892	PPCODE:	1364	PPCODE:
893	{	1365	{
894	dREQ;	1366	dREQ;
895		1367
896	req->int2 = mode;	1368	req->int2 = mode;
897	req->sv1 = newSVsv (fh_or_path);	1369	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
898
899	if (SvPOK (req->sv1))
900	{
901	req->type = ix;
902	req->ptr1 = SvPVbyte_nolen (req->sv1);
903	}
904	else
905	{
906	req->type = EIO_FCHMOD;
907	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
908	}
909		1370
910	REQ_SEND;	1371	REQ_SEND;
911	}	1372	}
912		1373
913	void	1374	void
…		…
916	{	1377	{
917	dREQ;	1378	dREQ;
918		1379
919	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1380	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
920	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1381	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
921	req->sv1 = newSVsv (fh_or_path);	1382	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
922
923	if (SvPOK (req->sv1))
924	{
925	req->type = EIO_CHOWN;
926	req->ptr1 = SvPVbyte_nolen (req->sv1);
927	}
928	else
929	{
930	req->type = EIO_FCHOWN;
931	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
932	}
933		1383
934	REQ_SEND;	1384	REQ_SEND;
935	}	1385	}
936		1386
937	void	1387	void
…		…
939	PPCODE:	1389	PPCODE:
940	{	1390	{
941	dREQ;	1391	dREQ;
942		1392
943	req->type = EIO_READDIR;	1393	req->type = EIO_READDIR;
944	req->sv1 = newSVsv (pathname);
945	req->ptr1 = SvPVbyte_nolen (req->sv1);
946	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1394	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
947		1395
948	if (flags & EIO_READDIR_DENTS)	1396	if (flags & EIO_READDIR_DENTS)
949	req->int1 |= EIO_READDIR_CUSTOM2;	1397	req->int1 |= EIO_READDIR_CUSTOM2;
950		1398
		1399	req_set_path1 (req, pathname);
		1400
951	REQ_SEND;	1401	REQ_SEND;
		1402	}
		1403
		1404	void
		1405	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1406	PPCODE:
		1407	{
		1408	dREQ;
		1409
		1410	req->type = EIO_MKDIR;
		1411	req->int2 = mode;
		1412	req_set_path1 (req, pathname);
		1413
		1414	REQ_SEND;
952	}	1415	}
953		1416
954	void	1417	void
955	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1418	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
956	ALIAS:	1419	ALIAS:
…		…
960	PPCODE:	1423	PPCODE:
961	{	1424	{
962	dREQ;	1425	dREQ;
963		1426
964	req->type = ix;	1427	req->type = ix;
965	req->sv1 = newSVsv (pathname);	1428	req_set_path1 (req, pathname);
966	req->ptr1 = SvPVbyte_nolen (req->sv1);
967		1429
968	REQ_SEND;	1430	REQ_SEND;
969	}	1431	}
970		1432
971	void	1433	void
…		…
974	aio_link = EIO_LINK	1436	aio_link = EIO_LINK
975	aio_symlink = EIO_SYMLINK	1437	aio_symlink = EIO_SYMLINK
976	aio_rename = EIO_RENAME	1438	aio_rename = EIO_RENAME
977	PPCODE:	1439	PPCODE:
978	{	1440	{
		1441	eio_wd wd2 = 0;
979	dREQ;	1442	dREQ;
980		1443
981	req->type = ix;	1444	req->type = ix;
982	req->sv1 = newSVsv (oldpath);	1445	req_set_path1 (req, oldpath);
983	req->ptr1 = SvPVbyte_nolen (req->sv1);	1446	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
984	req->sv2 = newSVsv (newpath);	1447	req->int3 = (long)wd2;
985	req->ptr2 = SvPVbyte_nolen (req->sv2);
986		1448
987	REQ_SEND;	1449	REQ_SEND;
988	}	1450	}
989		1451
990	void	1452	void
…		…
992	PPCODE:	1454	PPCODE:
993	{	1455	{
994	dREQ;	1456	dREQ;
995		1457
996	req->type = EIO_MKNOD;	1458	req->type = EIO_MKNOD;
997	req->sv1 = newSVsv (pathname);
998	req->ptr1 = SvPVbyte_nolen (req->sv1);
999	req->int2 = (mode_t)mode;	1459	req->int2 = (mode_t)mode;
1000	req->offs = dev;	1460	req->offs = dev;
		1461	req_set_path1 (req, pathname);
1001		1462
1002	REQ_SEND;	1463	REQ_SEND;
1003	}	1464	}
1004		1465
1005	void	1466	void
1006	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1467	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1007	ALIAS:	1468	ALIAS:
1008	aio_mtouch = EIO_MTOUCH	1469	aio_mtouch = EIO_MTOUCH
1009	aio_msync = EIO_MSYNC	1470	aio_msync = EIO_MSYNC
1010	PROTOTYPE: $$$$;$
1011	PPCODE:	1471	PPCODE:
1012	{	1472	{
1013	STRLEN svlen;	1473	STRLEN svlen;
		1474	char *svptr = SvPVbyte (data, svlen);
1014	UV len = SvUV (length);	1475	UV len = SvUV (length);
1015	char *svptr = SvPVbyte (data, svlen);
1016		1476
1017	if (offset < 0)	1477	if (offset < 0)
1018	offset += svlen;	1478	offset += svlen;
1019		1479
1020	if (offset < 0 || offset > svlen)	1480	if (offset < 0 || offset > svlen)
…		…
1025		1485
1026	{	1486	{
1027	dREQ;	1487	dREQ;
1028		1488
1029	req->type = ix;	1489	req->type = ix;
1030	req->size = len;
1031	req->sv2 = SvREFCNT_inc (data);	1490	req->sv2 = SvREFCNT_inc (data);
1032	req->ptr2 = (char *)svptr + offset;	1491	req->ptr2 = (char *)svptr + offset;
		1492	req->size = len;
1033	req->int1 = flags;	1493	req->int1 = flags;
1034		1494
1035	REQ_SEND;	1495	REQ_SEND;
1036	}	1496	}
1037	}	1497	}
1038		1498
1039	void	1499	void
		1500	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1501	PPCODE:
		1502	{
		1503	STRLEN svlen;
		1504	char *svptr = SvPVbyte (data, svlen);
		1505	UV len = SvUV (length);
		1506
		1507	if (offset < 0)
		1508	offset += svlen;
		1509
		1510	if (offset < 0 || offset > svlen)
		1511	croak ("offset outside of scalar");
		1512
		1513	if (!SvOK (length) || len + offset > svlen)
		1514	len = svlen - offset;
		1515
		1516	{
		1517	dREQ;
		1518
		1519	req->type = EIO_MLOCK;
		1520	req->sv2 = SvREFCNT_inc (data);
		1521	req->ptr2 = (char *)svptr + offset;
		1522	req->size = len;
		1523
		1524	REQ_SEND;
		1525	}
		1526	}
		1527
		1528	void
		1529	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1530	PPCODE:
		1531	{
		1532	dREQ;
		1533
		1534	req->type = EIO_MLOCKALL;
		1535	req->int1 = flags;
		1536
		1537	REQ_SEND;
		1538	}
		1539
		1540	void
		1541	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1542	PPCODE:
		1543	{
		1544	int fd = s_fileno_croak (fh, 0);
		1545	dREQ;
		1546
		1547	req->type = EIO_CUSTOM;
		1548	req->sv1 = newSVsv (fh);
		1549	req->int1 = fd;
		1550
		1551	req->feed = fiemap;
		1552	#if HAVE_FIEMAP
		1553	/* keep our fingers crossed that the next two types are 64 bit */
		1554	req->offs = start;
		1555	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1556	req->int2 = flags;
		1557	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1558	#endif
		1559
		1560	REQ_SEND;
		1561	}
		1562
		1563	void
1040	aio_busy (double delay, SV *callback=&PL_sv_undef)	1564	aio_busy (double delay, SV *callback=&PL_sv_undef)
1041	PPCODE:	1565	PPCODE:
1042	{	1566	{
1043	dREQ;	1567	dREQ;
1044		1568
…		…
1048	REQ_SEND;	1572	REQ_SEND;
1049	}	1573	}
1050		1574
1051	void	1575	void
1052	aio_group (SV *callback=&PL_sv_undef)	1576	aio_group (SV *callback=&PL_sv_undef)
1053	PROTOTYPE: ;$
1054	PPCODE:	1577	PPCODE:
1055	{	1578	{
1056	dREQ;	1579	dREQ;
1057		1580
1058	req->type = EIO_GROUP;	1581	req->type = EIO_GROUP;
…		…
1075	REQ_SEND;	1598	REQ_SEND;
1076	}	1599	}
1077		1600
1078	int	1601	int
1079	aioreq_pri (int pri = 0)	1602	aioreq_pri (int pri = 0)
1080	PROTOTYPE: ;$
1081	CODE:	1603	CODE:
1082	RETVAL = next_pri;	1604	RETVAL = next_pri;
1083	if (items > 0)	1605	if (items > 0)
1084	{	1606	{
1085	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1607	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1097	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1619	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1098	next_pri = nice;	1620	next_pri = nice;
1099		1621
1100	void	1622	void
1101	flush ()	1623	flush ()
1102	PROTOTYPE:
1103	CODE:	1624	CODE:
1104	while (eio_nreqs ())	1625	while (eio_nreqs ())
1105	{	1626	{
1106	poll_wait ();	1627	poll_wait ();
1107	poll_cb ();	1628	poll_cb ();
1108	}	1629	}
1109		1630
1110	int	1631	int
1111	poll()	1632	poll ()
1112	PROTOTYPE:
1113	CODE:	1633	CODE:
1114	poll_wait ();	1634	poll_wait ();
1115	RETVAL = poll_cb ();	1635	RETVAL = poll_cb ();
1116	OUTPUT:	1636	OUTPUT:
1117	RETVAL	1637	RETVAL
1118		1638
1119	int	1639	int
1120	poll_fileno()	1640	poll_fileno ()
1121	PROTOTYPE:
1122	CODE:	1641	CODE:
1123	RETVAL = s_epipe_fd (&respipe);	1642	RETVAL = s_epipe_fd (&respipe);
1124	OUTPUT:	1643	OUTPUT:
1125	RETVAL	1644	RETVAL
1126		1645
1127	int	1646	int
1128	poll_cb(...)	1647	poll_cb (...)
1129	PROTOTYPE:	1648	PROTOTYPE:
1130	CODE:	1649	CODE:
1131	RETVAL = poll_cb ();	1650	RETVAL = poll_cb ();
1132	OUTPUT:	1651	OUTPUT:
1133	RETVAL	1652	RETVAL
1134		1653
1135	void	1654	void
1136	poll_wait()	1655	poll_wait ()
1137	PROTOTYPE:
1138	CODE:	1656	CODE:
1139	poll_wait ();	1657	poll_wait ();
1140		1658
1141	int	1659	int
1142	nreqs()	1660	nreqs ()
1143	PROTOTYPE:
1144	CODE:	1661	CODE:
1145	RETVAL = eio_nreqs ();	1662	RETVAL = eio_nreqs ();
1146	OUTPUT:	1663	OUTPUT:
1147	RETVAL	1664	RETVAL
1148		1665
1149	int	1666	int
1150	nready()	1667	nready ()
1151	PROTOTYPE:
1152	CODE:	1668	CODE:
1153	RETVAL = eio_nready ();	1669	RETVAL = eio_nready ();
1154	OUTPUT:	1670	OUTPUT:
1155	RETVAL	1671	RETVAL
1156		1672
1157	int	1673	int
1158	npending()	1674	npending ()
1159	PROTOTYPE:
1160	CODE:	1675	CODE:
1161	RETVAL = eio_npending ();	1676	RETVAL = eio_npending ();
1162	OUTPUT:	1677	OUTPUT:
1163	RETVAL	1678	RETVAL
1164		1679
1165	int	1680	int
1166	nthreads()	1681	nthreads ()
1167	PROTOTYPE:
1168	CODE:	1682	CODE:
1169	RETVAL = eio_nthreads ();	1683	RETVAL = eio_nthreads ();
1170	OUTPUT:	1684	OUTPUT:
1171	RETVAL	1685	RETVAL
1172		1686
1173	int	1687	int
1174	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1688	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1175	PROTOTYPE: $$$$
1176	CODE:	1689	CODE:
1177	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1178	RETVAL = posix_fadvise (fh, offset, length, advice);	1690	RETVAL = posix_fadvise (fh, offset, length, advice);
1179	#else
1180	RETVAL = errno = ENOSYS;
1181	#endif
1182	OUTPUT:	1691	OUTPUT:
1183	RETVAL	1692	RETVAL
1184		1693
1185	ssize_t	1694	IV
1186	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1695	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1187	PROTOTYPE: $$$$
1188	CODE:	1696	CODE:
1189	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1697	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1190	OUTPUT:	1698	OUTPUT:
1191	RETVAL	1699	RETVAL
1192		1700
		1701	void
		1702	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1703	PPCODE:
		1704	sv_unmagic (scalar, MMAP_MAGIC);
		1705	{
		1706	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1707	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1708	if (addr == (void *)-1)
		1709	XSRETURN_NO;
		1710
		1711	sv_force_normal (scalar);
		1712
		1713	/* we store the length in mg_obj, as namlen is I32 :/ */
		1714	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1715	->mg_obj = (SV *)length;
		1716
		1717	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1718
		1719	if (!(prot & PROT_WRITE))
		1720	SvREADONLY_on (scalar);
		1721
		1722	if (SvLEN (scalar))
		1723	Safefree (SvPVX (scalar));
		1724
		1725	SvPVX (scalar) = (char *)addr;
		1726	SvCUR_set (scalar, length);
		1727	SvLEN_set (scalar, 0);
		1728	SvPOK_only (scalar);
		1729
		1730	XSRETURN_YES;
		1731	}
		1732
		1733	void
		1734	munmap (SV *scalar)
		1735	CODE:
		1736	sv_unmagic (scalar, MMAP_MAGIC);
		1737
		1738	int
		1739	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1740	ALIAS:
		1741	mprotect = 1
		1742	CODE:
		1743	{
		1744	STRLEN svlen;
		1745	void *addr = SvPVbyte (scalar, svlen);
		1746	size_t len = SvUV (length);
		1747
		1748	if (offset < 0)
		1749	offset += svlen;
		1750
		1751	if (offset < 0 || offset > svlen)
		1752	croak ("offset outside of scalar");
		1753
		1754	if (!SvOK (length) || len + offset > svlen)
		1755	len = svlen - offset;
		1756
		1757	addr = (void *)(((intptr_t)addr) + offset);
		1758	eio_page_align (&addr, &len);
		1759
		1760	switch (ix)
		1761	{
		1762	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1763	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1764	}
		1765	}
		1766	OUTPUT:
		1767	RETVAL
		1768
		1769	int
		1770	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1771	CODE:
		1772	{
		1773	STRLEN svlen;
		1774	void *addr = SvPVbyte (scalar, svlen);
		1775	size_t len = SvUV (length);
		1776
		1777	if (offset < 0)
		1778	offset += svlen;
		1779
		1780	if (offset < 0 || offset > svlen)
		1781	croak ("offset outside of scalar");
		1782
		1783	if (!SvOK (length) || len + offset > svlen)
		1784	len = svlen - offset;
		1785
		1786	addr = (void *)(((intptr_t)addr) + offset);
		1787	eio_page_align (&addr, &len);
		1788	#if _POSIX_MEMLOCK_RANGE
		1789	RETVAL = munlock (addr, len);
		1790	#else
		1791	RETVAL = EIO_ENOSYS ();
		1792	#endif
		1793	}
		1794	OUTPUT:
		1795	RETVAL
		1796
		1797	int
		1798	munlockall ()
		1799	CODE:
		1800	#if _POSIX_MEMLOCK
		1801	munlockall ();
		1802	#else
		1803	RETVAL = EIO_ENOSYS ();
		1804	#endif
		1805	OUTPUT:
		1806	RETVAL
		1807
		1808	int
		1809	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1810	CODE:
		1811	{
		1812	#if HAVE_LINUX_SPLICE
		1813	loff_t off_in_, off_out_;
		1814	RETVAL = splice (
		1815	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1816	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1817	length, flags
		1818	);
		1819	#else
		1820	RETVAL = EIO_ENOSYS ();
		1821	#endif
		1822	}
		1823	OUTPUT:
		1824	RETVAL
		1825
		1826	int
		1827	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1828	CODE:
		1829	#if HAVE_LINUX_SPLICE
		1830	RETVAL = tee (rfh, wfh, length, flags);
		1831	#else
		1832	RETVAL = EIO_ENOSYS ();
		1833	#endif
		1834	OUTPUT:
		1835	RETVAL
		1836
1193	void _on_next_submit (SV *cb)	1837	void _on_next_submit (SV *cb)
1194	CODE:	1838	CODE:
1195	SvREFCNT_dec (on_next_submit);	1839	SvREFCNT_dec (on_next_submit);
1196	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1840	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1197		1841
1198	PROTOTYPES: DISABLE	1842	PROTOTYPES: DISABLE
1199		1843
		1844	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1845
		1846	BOOT:
		1847	{
		1848	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1849	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1850	}
		1851
		1852	void
		1853	DESTROY (SV *self)
		1854	CODE:
		1855	{
		1856	aio_wd wd = SvAIO_WD (self);
		1857	#if HAVE_AT
		1858	{
		1859	SV *callback = &PL_sv_undef;
		1860	dREQ; /* clobbers next_pri :/ */
		1861	next_pri = req->pri; /* restore next_pri */
		1862	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1863	req->type = EIO_WD_CLOSE;
		1864	req->wd = wd;
		1865	REQ_SEND;
		1866	}
		1867	#else
		1868	eio_wd_close_sync (wd);
		1869	#endif
		1870	}
		1871
1200	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1872	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1201		1873
1202	void	1874	void
1203	cancel (aio_req_ornot req)	1875	cancel (aio_req_ornot req)
1204	CODE:	1876	CODE:

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