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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.155 by root, Fri Jul 17 00:56:54 2009 UTC vs.
Revision 1.215 by root, Sun Jun 17 17:07:25 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
…		…
99	#define expect_false(expr) expect ((expr) != 0, 0)	99	#define expect_false(expr) expect ((expr) != 0, 0)
100	#define expect_true(expr) expect ((expr) != 0, 1)	100	#define expect_true(expr) expect ((expr) != 0, 1)
101		101
102	/*****************************************************************************/	102	/*****************************************************************************/
103		103
104	static HV *stash;
105	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
106	typedef int aio_rfd; /* read file desriptor */	105	typedef int aio_rfd; /* read file desriptor */
107	typedef int aio_wfd; /* write file descriptor */	106	typedef int aio_wfd; /* write file descriptor */
108		107
109	#define AIO_REQ_KLASS "IO::AIO::REQ"	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
110	#define AIO_GRP_KLASS "IO::AIO::GRP"
111		109
112	#define EIO_REQ_MEMBERS \	110	#define EIO_REQ_MEMBERS \
113	SV *callback; \	111	SV *callback; \
114	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
115	STRLEN stroffset; \	114	STRLEN stroffset; \
116	SV *self;	115	SV *self;
117		116
118	#define EIO_NO_WRAPPERS 1	117	#define EIO_NO_WRAPPERS 1
119		118
		119	#include "libeio/config.h"
120	#include "libeio/eio.h"	120	#include "libeio/eio.h"
121
122	#ifndef POSIX_FADV_NORMAL
123	# define POSIX_FADV_NORMAL 0
124	# define NO_FADVISE 1
125	#endif
126
127	#ifndef POSIX_FADV_SEQUENTIAL
128	# define POSIX_FADV_SEQUENTIAL 0
129	#endif
130
131	#ifndef POSIX_FADV_RANDOM
132	# define POSIX_FADV_RANDOM 0
133	#endif
134
135	#ifndef POSIX_FADV_NOREUSE
136	# define POSIX_FADV_NOREUSE 0
137	#endif
138
139	#ifndef POSIX_FADV_WILLNEED
140	# define POSIX_FADV_WILLNEED 0
141	#endif
142
143	#ifndef POSIX_FADV_DONTNEED
144	# define POSIX_FADV_DONTNEED 0
145	#endif
146		121
147	static int req_invoke (eio_req *req);	122	static int req_invoke (eio_req *req);
148	#define EIO_FINISH(req) req_invoke (req)	123	#define EIO_FINISH(req) req_invoke (req)
149	static void req_destroy (eio_req *grp);	124	static void req_destroy (eio_req *grp);
150	#define EIO_DESTROY(req) req_destroy (req)	125	#define EIO_DESTROY(req) req_destroy (req)
151		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 64 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 maybe 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_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
		200	break; /* autosizing successful, we are done */
		201
		202	fiemap->fm_flags = req->int2;
		203	fiemap->fm_extent_count = 0;
		204
		205	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		206	return;
		207
		208	count = fiemap->fm_mapped_extents;
		209
		210	free (fiemap);
		211	}
		212
		213	req->result = 0;
		214
		215	#else
		216	errno = ENOSYS;
		217	#endif
		218	}
		219
		220	/*****************************************************************************/
		221
152	enum {	222	enum {
153	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	223	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
154	};	224	};
155		225
156	#include "libeio/eio.c"
157
158	typedef eio_req *aio_req;	226	typedef eio_req *aio_req;
159	typedef eio_req *aio_req_ornot;	227	typedef eio_req *aio_req_ornot;
		228	typedef eio_wd aio_wd;
160		229
161	static SV *on_next_submit;	230	static SV *on_next_submit;
162	static int next_pri = EIO_PRI_DEFAULT;	231	static int next_pri = EIO_PRI_DEFAULT;
163	static int max_outstanding;	232	static int max_outstanding;
164		233
165	static s_epipe respipe;	234	static s_epipe respipe;
166		235
167	static void req_destroy (aio_req req);	236	static void req_destroy (aio_req req);
168	static void req_cancel (aio_req req);	237	static void req_cancel (aio_req req);
169		238
170	static void want_poll (void)	239	static void
		240	want_poll (void)
171	{	241	{
172	/* write a dummy byte to the pipe so fh becomes ready */	242	/* write a dummy byte to the pipe so fh becomes ready */
173	s_epipe_signal (&respipe);	243	s_epipe_signal (&respipe);
174	}	244	}
175		245
176	static void done_poll (void)	246	static void
		247	done_poll (void)
177	{	248	{
178	/* read any signals sent by the worker threads */	249	/* read any signals sent by the worker threads */
179	s_epipe_drain (&respipe);	250	s_epipe_drain (&respipe);
180	}	251	}
181		252
182	/* must be called at most once */	253	/* must be called at most once */
183	static SV *req_sv (aio_req req, const char *klass)	254	static SV *
		255	req_sv (aio_req req, HV *stash)
184	{	256	{
185	if (!req->self)	257	if (!req->self)
186	{	258	{
187	req->self = (SV *)newHV ();	259	req->self = (SV *)newHV ();
188	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	260	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
189	}	261	}
190		262
191	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	263	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
192	}	264	}
193		265
194	static aio_req SvAIO_REQ (SV *sv)	266	static SV *
		267	newSVaio_wd (aio_wd wd)
		268	{
		269	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		270	}
		271
		272	static aio_req
		273	SvAIO_REQ (SV *sv)
195	{	274	{
196	MAGIC *mg;	275	MAGIC *mg;
197		276
198	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	277	if (!SvROK (sv)
		278	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		279	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		280	&& SvSTASH (SvRV (sv)) != aio_req_stash
		281	&& !sv_derived_from (sv, "IO::AIO::REQ")))
199	croak ("object of class " AIO_REQ_KLASS " expected");	282	croak ("object of class IO::AIO::REQ expected");
200		283
201	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	284	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
202		285
203	return mg ? (aio_req)mg->mg_ptr : 0;	286	return mg ? (aio_req)mg->mg_ptr : 0;
204	}	287	}
205		288
		289	static aio_wd
		290	SvAIO_WD (SV *sv)
		291	{
		292	if (!SvROK (sv)
		293	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		294	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		295	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		296
		297	return (aio_wd)(long)SvIVX (SvRV (sv));
		298	}
		299
		300	static void
206	static void aio_grp_feed (aio_req grp)	301	aio_grp_feed (aio_req grp)
207	{	302	{
208	if (grp->sv2 && SvOK (grp->sv2))	303	if (grp->sv2 && SvOK (grp->sv2))
209	{	304	{
210	dSP;	305	dSP;
211		306
212	ENTER;	307	ENTER;
213	SAVETMPS;	308	SAVETMPS;
214	PUSHMARK (SP);	309	PUSHMARK (SP);
215	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	310	XPUSHs (req_sv (grp, aio_grp_stash));
216	PUTBACK;	311	PUTBACK;
217	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	312	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
218	SPAGAIN;	313	SPAGAIN;
219	FREETMPS;	314	FREETMPS;
220	LEAVE;	315	LEAVE;
221	}	316	}
222	}	317	}
223		318
		319	static void
224	static void req_submit (eio_req *req)	320	req_submit (eio_req *req)
225	{	321	{
226	eio_submit (req);	322	eio_submit (req);
227		323
228	if (expect_false (on_next_submit))	324	if (expect_false (on_next_submit))
229	{	325	{
…		…
236	PUTBACK;	332	PUTBACK;
237	call_sv (cb, G_DISCARD | G_EVAL);	333	call_sv (cb, G_DISCARD | G_EVAL);
238	}	334	}
239	}	335	}
240		336
		337	static int
241	static int req_invoke (eio_req *req)	338	req_invoke (eio_req *req)
242	{	339	{
243	dSP;
244
245	if (req->flags & FLAG_SV2_RO_OFF)	340	if (req->flags & FLAG_SV2_RO_OFF)
246	SvREADONLY_off (req->sv2);	341	SvREADONLY_off (req->sv2);
247		342
248	if (!EIO_CANCELLED (req) && req->callback)	343	if (!EIO_CANCELLED (req) && req->callback)
249	{	344	{
		345	dSP;
		346	static SV *sv_result_cache; /* caches the result integer SV */
		347	SV *sv_result;
		348
250	ENTER;	349	ENTER;
251	SAVETMPS;	350	SAVETMPS;
252	PUSHMARK (SP);	351	PUSHMARK (SP);
253	EXTEND (SP, 1);	352	EXTEND (SP, 1);
254		353
		354	/* do not recreate the result IV from scratch each time */
		355	if (expect_true (sv_result_cache))
		356	{
		357	sv_result = sv_result_cache; sv_result_cache = 0;
		358	SvIV_set (sv_result, req->result);
		359	SvIOK_only (sv_result);
		360	}
		361	else
		362	{
		363	sv_result = newSViv (req->result);
		364	SvREADONLY_on (sv_result);
		365	}
		366
255	switch (req->type)	367	switch (req->type)
256	{	368	{
		369	case EIO_WD_OPEN:
		370	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		371	break;
		372
257	case EIO_READDIR:	373	case EIO_READDIR:
258	{	374	{
259	SV *rv = &PL_sv_undef;	375	SV *rv = &PL_sv_undef;
260		376
261	if (req->result >= 0)	377	if (req->result >= 0)
…		…
326	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	442	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
327	char sym [64];	443	char sym [64];
328	int symlen;	444	int symlen;
329		445
330	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);	446	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
331	gv_init (gv, stash, sym, symlen, 0);	447	gv_init (gv, aio_stash, sym, symlen, 0);
332		448
333	symlen = snprintf (	449	symlen = snprintf (
334	sym,	450	sym,
335	sizeof (sym),	451	sizeof (sym),
336	"%s&=%d",	452	"%s&=%d",
…		…
344		460
345	PUSHs (fh);	461	PUSHs (fh);
346	}	462	}
347	break;	463	break;
348		464
		465	case EIO_STATVFS:
		466	case EIO_FSTATVFS:
		467	{
		468	SV *rv = &PL_sv_undef;
		469
		470	#ifndef _WIN32
		471	if (req->result >= 0)
		472	{
		473	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		474	HV *hv = newHV ();
		475
		476	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		477
		478	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		479	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		480	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		481	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		482	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		483	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		484	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		485	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		486	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		487	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		488	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		489	}
		490	#endif
		491
		492	PUSHs (rv);
		493	}
		494
		495	break;
		496
349	case EIO_GROUP:	497	case EIO_GROUP:
350	req->int1 = 2; /* mark group as finished */	498	req->int1 = 2; /* mark group as finished */
351		499
352	if (req->sv1)	500	if (req->sv1)
353	{	501	{
…		…
363	case EIO_NOP:	511	case EIO_NOP:
364	case EIO_BUSY:	512	case EIO_BUSY:
365	break;	513	break;
366		514
367	case EIO_READLINK:	515	case EIO_READLINK:
		516	case EIO_REALPATH:
368	if (req->result > 0)	517	if (req->result > 0)
369	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	518	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
370	break;	519	break;
371		520
372	case EIO_STAT:	521	case EIO_STAT:
373	case EIO_LSTAT:	522	case EIO_LSTAT:
374	case EIO_FSTAT:	523	case EIO_FSTAT:
375	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	524	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		525
376	PL_laststatval = req->result;	526	if (!(PL_laststatval = req->result))
		527	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
377	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	528	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
378	PUSHs (sv_2mortal (newSViv (req->result)));	529
		530	PUSHs (sv_result);
		531	break;
		532
		533	case EIO_SEEK:
		534	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
379	break;	535	break;
380		536
381	case EIO_READ:	537	case EIO_READ:
382	{	538	{
383	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	539	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
384	*SvEND (req->sv2) = 0;	540	*SvEND (req->sv2) = 0;
385	SvPOK_only (req->sv2);	541	SvPOK_only (req->sv2);
386	SvSETMAGIC (req->sv2);	542	SvSETMAGIC (req->sv2);
387	PUSHs (sv_2mortal (newSViv (req->result)));	543	PUSHs (sv_result);
388	}	544	}
389	break;	545	break;
390		546
391	case EIO_DUP2:	547	case EIO_CUSTOM:
		548	if (req->feed == fiemap)
		549	{
		550	#if HAVE_FIEMAP
		551	if (!req->result)
		552	{
		553	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		554
		555	if (fiemap->fm_extent_count)
		556	{
		557	AV *av = newAV ();
		558	int i;
		559
		560	while (fiemap->fm_mapped_extents)
		561	{
		562	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		563	AV *ext_av = newAV ();
		564
		565	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		566	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		567	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		568	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		569
		570	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		571	}
		572
		573	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		574	}
		575	else
		576	{
		577	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		578	PUSHs (sv_result);
		579	}
		580	}
		581	#endif
		582	}
		583	else
		584	PUSHs (sv_result);
		585	break;
		586
		587	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
392	if (req->result > 0)	588	if (req->result > 0)
393	req->result = 0;	589	SvIV_set (sv_result, 0);
394	/* FALLTHROUGH */	590	/* FALLTHROUGH */
395		591
396	default:	592	default:
397	PUSHs (sv_2mortal (newSViv (req->result)));	593	PUSHs (sv_result);
398	break;	594	break;
399	}	595	}
400		596
401	errno = req->errorno;	597	errno = req->errorno;
402		598
403	PUTBACK;	599	PUTBACK;
404	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	600	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
405	SPAGAIN;	601	SPAGAIN;
406		602
		603	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		604	SvREFCNT_dec (sv_result);
		605	else
		606	sv_result_cache = sv_result;
		607
407	FREETMPS;	608	FREETMPS;
408	LEAVE;	609	LEAVE;
409		610
410	PUTBACK;	611	PUTBACK;
411	}	612	}
412		613
413	return !!SvTRUE (ERRSV);	614	return !!SvTRUE (ERRSV);
414	}	615	}
415		616
		617	static void
416	static void req_destroy (aio_req req)	618	req_destroy (aio_req req)
417	{	619	{
418	if (req->self)	620	if (req->self)
419	{	621	{
420	sv_unmagic (req->self, PERL_MAGIC_ext);	622	sv_unmagic (req->self, PERL_MAGIC_ext);
421	SvREFCNT_dec (req->self);	623	SvREFCNT_dec (req->self);
422	}	624	}
423		625
424	SvREFCNT_dec (req->sv1);	626	SvREFCNT_dec (req->sv1);
425	SvREFCNT_dec (req->sv2);	627	SvREFCNT_dec (req->sv2);
		628	SvREFCNT_dec (req->sv3);
		629	SvREFCNT_dec (req->sv4);
426	SvREFCNT_dec (req->callback);	630	SvREFCNT_dec (req->callback);
427		631
428	Safefree (req);	632	free (req);
429	}	633	}
430		634
		635	static void
431	static void req_cancel_subs (aio_req grp)	636	req_cancel_subs (aio_req grp)
432	{	637	{
433	aio_req sub;
434
435	if (grp->type != EIO_GROUP)	638	if (grp->type != EIO_GROUP)
436	return;	639	return;
437		640
438	SvREFCNT_dec (grp->sv2);	641	SvREFCNT_dec (grp->sv2);
439	grp->sv2 = 0;	642	grp->sv2 = 0;
440		643
441	eio_grp_cancel (grp);	644	eio_grp_cancel (grp);
442	}	645	}
443		646
444	static void	647	static void ecb_cold
445	create_respipe (void)	648	create_respipe (void)
446	{	649	{
447	if (s_epipe_renew (&respipe))	650	if (s_epipe_renew (&respipe))
448	croak ("IO::AIO: unable to initialize result pipe");	651	croak ("IO::AIO: unable to initialize result pipe");
449	}	652	}
450		653
451	static void poll_wait (void)	654	static void
		655	poll_wait (void)
452	{	656	{
453	while (eio_nreqs ())	657	while (eio_nreqs ())
454	{	658	{
455	int size;	659	int size;
456		660
…		…
465		669
466	s_epipe_wait (&respipe);	670	s_epipe_wait (&respipe);
467	}	671	}
468	}	672	}
469		673
470	static int poll_cb (void)	674	static int
		675	poll_cb (void)
471	{	676	{
472	for (;;)	677	for (;;)
473	{	678	{
474	int res = eio_poll ();	679	int res = eio_poll ();
475		680
…		…
481		686
482	poll_wait ();	687	poll_wait ();
483	}	688	}
484	}	689	}
485		690
486	static void atfork_child (void)	691	static void ecb_cold
		692	reinit (void)
487	{	693	{
488	create_respipe ();	694	create_respipe ();
		695
		696	if (eio_init (want_poll, done_poll) < 0)
		697	croak ("IO::AIO: unable to initialise eio library");
489	}	698	}
		699
		700	/*****************************************************************************/
		701
		702	#if !_POSIX_MAPPED_FILES
		703	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		704	# define munmap(addr,length) EIO_ENOSYS ()
		705	#endif
		706
		707	#if !_POSIX_MEMORY_PROTECTION
		708	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		709	# define PROT_NONE 0
		710	# define PROT_WRITE 0
		711	# define MAP_PRIVATE 0
		712	# define MAP_SHARED 0
		713	# define MAP_FIXED 0
		714	#endif
		715
		716	#define MMAP_MAGIC PERL_MAGIC_ext
		717
		718	static int ecb_cold
		719	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		720	{
		721	int old_errno = errno;
		722	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		723	errno = old_errno;
		724
		725	mg->mg_obj = 0; /* just in case */
		726
		727	SvREADONLY_off (sv);
		728
		729	if (SvPVX (sv) != mg->mg_ptr)
		730	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		731
		732	SvCUR_set (sv, 0);
		733	SvPVX (sv) = 0;
		734	SvOK_off (sv);
		735
		736	return 0;
		737	}
		738
		739	static MGVTBL mmap_vtbl = {
		740	0, 0, 0, 0, mmap_free
		741	};
		742
		743	/*****************************************************************************/
490		744
491	static SV *	745	static SV *
492	get_cb (SV *cb_sv)	746	get_cb (SV *cb_sv)
493	{	747	{
494	SvGETMAGIC (cb_sv);	748	SvGETMAGIC (cb_sv);
495	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	749	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
496	}	750	}
497		751
		752	static aio_req ecb_noinline
		753	dreq (SV *callback)
		754	{
		755	SV *cb_cv;
		756	aio_req req;
		757	int req_pri = next_pri;
		758	next_pri = EIO_PRI_DEFAULT;
		759
		760	cb_cv = get_cb (callback);
		761
		762	req = calloc (sizeof (*req), 1);
		763	if (!req)
		764	croak ("out of memory during eio_req allocation");
		765
		766	req->callback = SvREFCNT_inc (cb_cv);
		767	req->pri = req_pri;
		768
		769	return req;
		770	}
		771
498	#define dREQ \	772	#define dREQ \
499	SV *cb_cv; \	773	aio_req req = dreq (callback); \
500	aio_req req; \
501	int req_pri = next_pri; \
502	next_pri = EIO_PRI_DEFAULT; \
503	\
504	cb_cv = get_cb (callback); \
505	\
506	Newz (0, req, 1, eio_req); \
507	if (!req) \
508	croak ("out of memory during eio_req allocation"); \
509	\
510	req->callback = SvREFCNT_inc (cb_cv); \
511	req->pri = req_pri
512		774
513	#define REQ_SEND \	775	#define REQ_SEND \
514	PUTBACK; \	776	PUTBACK; \
515	req_submit (req); \	777	req_submit (req); \
516	SPAGAIN; \	778	SPAGAIN; \
517	\	779	\
518	if (GIMME_V != G_VOID) \	780	if (GIMME_V != G_VOID) \
519	XPUSHs (req_sv (req, AIO_REQ_KLASS));	781	XPUSHs (req_sv (req, aio_req_stash));
		782
		783	ecb_inline void
		784	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		785	{
		786	if (expect_false (SvROK (path)))
		787	{
		788	SV *rv = SvRV (path);
		789	SV *wdob;
		790
		791	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		792	{
		793	path = AvARRAY (rv)[1];
		794	wdob = AvARRAY (rv)[0];
		795
		796	if (SvOK (wdob))
		797	{
		798	*wd = SvAIO_WD (wdob);
		799	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		800	}
		801	else
		802	*wd = EIO_INVALID_WD;
		803	}
		804	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		805	{
		806	*wd = (aio_wd)(long)SvIVX (rv);
		807	*wdsv = SvREFCNT_inc_NN (rv);
		808	*ptr = ".";
		809	return; /* path set to "." */
		810	}
		811	else
		812	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		813	}
		814
		815	*pathsv = newSVsv (path);
		816	*ptr = SvPVbyte_nolen (*pathsv);
		817	}
		818
		819	static void ecb_noinline
		820	req_set_path1 (aio_req req, SV *path)
		821	{
		822	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		823	}
		824
		825	static void ecb_noinline
		826	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		827	{
		828	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		829
		830	switch (SvTYPE (rv))
		831	{
		832	case SVt_PVIO:
		833	case SVt_PVLV:
		834	case SVt_PVGV:
		835	req->type = type_fh;
		836	req->sv1 = newSVsv (fh_or_path);
		837	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		838	break;
		839
		840	default:
		841	req->type = type_path;
		842	req_set_path1 (req, fh_or_path);
		843	break;
		844	}
		845	}
		846
		847	XS(boot_IO__AIO) ecb_cold;
520		848
521	MODULE = IO::AIO PACKAGE = IO::AIO	849	MODULE = IO::AIO PACKAGE = IO::AIO
522		850
523	PROTOTYPES: ENABLE	851	PROTOTYPES: ENABLE
524		852
…		…
526	{	854	{
527	static const struct {	855	static const struct {
528	const char *name;	856	const char *name;
529	IV iv;	857	IV iv;
530	} *civ, const_iv[] = {	858	} *civ, const_iv[] = {
531	# define const_iv(name, value) { # name, (IV) value },	859	# define const_niv(name, value) { # name, (IV) value },
		860	# define const_iv(name) { # name, (IV) name },
532	# define const_eio(name) { # name, (IV) EIO_ ## name },	861	# define const_eio(name) { # name, (IV) EIO_ ## name },
533	const_iv (EXDEV , EXDEV)	862
		863	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		864
534	const_iv (ENOSYS , ENOSYS)	865	const_iv (ENOSYS)
		866	const_iv (EXDEV)
		867	const_iv (EBADR)
		868
535	const_iv (O_RDONLY, O_RDONLY)	869	const_iv (O_RDONLY)
536	const_iv (O_WRONLY, O_WRONLY)	870	const_iv (O_WRONLY)
		871	const_iv (O_RDWR)
537	const_iv (O_CREAT , O_CREAT)	872	const_iv (O_CREAT)
538	const_iv (O_TRUNC , O_TRUNC)	873	const_iv (O_TRUNC)
539	#ifndef _WIN32	874	const_iv (O_EXCL)
		875	const_iv (O_APPEND)
		876
		877	const_iv (O_ASYNC)
		878	const_iv (O_DIRECT)
		879	const_iv (O_NOATIME)
		880
		881	const_iv (O_CLOEXEC)
		882	const_iv (O_NOCTTY)
		883	const_iv (O_NOFOLLOW)
		884	const_iv (O_NONBLOCK)
		885	const_iv (O_EXEC)
		886	const_iv (O_SEARCH)
		887	const_iv (O_DIRECTORY)
		888	const_iv (O_DSYNC)
		889	const_iv (O_RSYNC)
		890	const_iv (O_SYNC)
		891	const_iv (O_TTY_INIT)
		892
540	const_iv (S_IFIFO , S_IFIFO)	893	const_iv (S_IFIFO)
541	#endif	894	const_iv (S_IFCHR)
		895	const_iv (S_IFBLK)
		896	const_iv (S_IFLNK)
		897	const_iv (S_IFREG)
		898	const_iv (S_IFDIR)
		899	const_iv (S_IFWHT)
		900	const_iv (S_IFSOCK)
		901	const_iv (S_IFMT)
		902
542	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	903	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
543	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	904	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
544	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	905	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
545	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	906	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
546	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	907	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
547	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	908	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		909
		910	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		911	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		912	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		913	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		914	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		915
		916	const_iv (ST_RDONLY)
		917	const_iv (ST_NOSUID)
		918	const_iv (ST_NODEV)
		919	const_iv (ST_NOEXEC)
		920	const_iv (ST_SYNCHRONOUS)
		921	const_iv (ST_MANDLOCK)
		922	const_iv (ST_WRITE)
		923	const_iv (ST_APPEND)
		924	const_iv (ST_IMMUTABLE)
		925	const_iv (ST_NOATIME)
		926	const_iv (ST_NODIRATIME)
		927	const_iv (ST_RELATIME)
		928
		929	const_iv (PROT_NONE)
		930	const_iv (PROT_EXEC)
		931	const_iv (PROT_READ)
		932	const_iv (PROT_WRITE)
		933
		934	/*const_iv (MAP_FIXED)*/
		935	const_iv (MAP_PRIVATE)
		936	const_iv (MAP_SHARED)
		937	const_iv (MAP_ANONYMOUS)
		938
		939	/* linuxish */
		940	const_iv (MAP_HUGETLB)
		941	const_iv (MAP_LOCKED)
		942	const_iv (MAP_NORESERVE)
		943	const_iv (MAP_POPULATE)
		944	const_iv (MAP_NONBLOCK)
		945
		946	const_iv (FIEMAP_FLAG_SYNC)
		947	const_iv (FIEMAP_FLAG_XATTR)
		948	const_iv (FIEMAP_FLAGS_COMPAT)
		949	const_iv (FIEMAP_EXTENT_LAST)
		950	const_iv (FIEMAP_EXTENT_UNKNOWN)
		951	const_iv (FIEMAP_EXTENT_DELALLOC)
		952	const_iv (FIEMAP_EXTENT_ENCODED)
		953	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		954	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		955	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		956	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		957	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		958	const_iv (FIEMAP_EXTENT_MERGED)
		959	const_iv (FIEMAP_EXTENT_SHARED)
		960
		961	const_iv (SPLICE_F_MOVE)
		962	const_iv (SPLICE_F_NONBLOCK)
		963	const_iv (SPLICE_F_MORE)
		964	const_iv (SPLICE_F_GIFT)
		965
		966	const_iv (SEEK_DATA)
		967	const_iv (SEEK_HOLE)
		968
		969	/* libeio constants */
		970	const_eio (SEEK_SET)
		971	const_eio (SEEK_CUR)
		972	const_eio (SEEK_END)
		973
		974	const_eio (MCL_FUTURE)
		975	const_eio (MCL_CURRENT)
		976
		977	const_eio (MS_ASYNC)
		978	const_eio (MS_INVALIDATE)
		979	const_eio (MS_SYNC)
		980
		981	const_eio (MT_MODIFY)
548		982
549	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	983	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
550	const_eio (SYNC_FILE_RANGE_WRITE)	984	const_eio (SYNC_FILE_RANGE_WRITE)
551	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	985	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		986
		987	const_eio (FALLOC_FL_KEEP_SIZE)
552		988
553	const_eio (READDIR_DENTS)	989	const_eio (READDIR_DENTS)
554	const_eio (READDIR_DIRS_FIRST)	990	const_eio (READDIR_DIRS_FIRST)
555	const_eio (READDIR_STAT_ORDER)	991	const_eio (READDIR_STAT_ORDER)
556	const_eio (READDIR_FOUND_UNKNOWN)	992	const_eio (READDIR_FOUND_UNKNOWN)
…		…
564	const_eio (DT_LNK)	1000	const_eio (DT_LNK)
565	const_eio (DT_SOCK)	1001	const_eio (DT_SOCK)
566	const_eio (DT_WHT)	1002	const_eio (DT_WHT)
567	};	1003	};
568		1004
569	stash = gv_stashpv ("IO::AIO", 1);	1005	aio_stash = gv_stashpv ("IO::AIO" , 1);
		1006	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		1007	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1008	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
570		1009
571	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1010	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
572	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1011	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
573		1012
574	create_respipe ();	1013	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
575		1014
576	if (eio_init (want_poll, done_poll) < 0)	1015	reinit ();
577	croak ("IO::AIO: unable to initialise eio library");
578
579	/* atfork child called in fifo order, so before eio's handler */
580	X_THREAD_ATFORK (0, 0, atfork_child);
581	}	1016	}
582		1017
583	void	1018	void
		1019	reinit ()
		1020	PROTOTYPE:
		1021
		1022	void
584	max_poll_reqs (int nreqs)	1023	max_poll_reqs (unsigned int nreqs)
585	PROTOTYPE: $	1024	PROTOTYPE: $
586	CODE:	1025	CODE:
587	eio_set_max_poll_reqs (nreqs);	1026	eio_set_max_poll_reqs (nreqs);
588		1027
589	void	1028	void
…		…
591	PROTOTYPE: $	1030	PROTOTYPE: $
592	CODE:	1031	CODE:
593	eio_set_max_poll_time (nseconds);	1032	eio_set_max_poll_time (nseconds);
594		1033
595	void	1034	void
596	min_parallel (int nthreads)	1035	min_parallel (unsigned int nthreads)
597	PROTOTYPE: $	1036	PROTOTYPE: $
598	CODE:	1037	CODE:
599	eio_set_min_parallel (nthreads);	1038	eio_set_min_parallel (nthreads);
600		1039
601	void	1040	void
602	max_parallel (int nthreads)	1041	max_parallel (unsigned int nthreads)
603	PROTOTYPE: $	1042	PROTOTYPE: $
604	CODE:	1043	CODE:
605	eio_set_max_parallel (nthreads);	1044	eio_set_max_parallel (nthreads);
606		1045
607	void	1046	void
608	max_idle (int nthreads)	1047	max_idle (unsigned int nthreads)
609	PROTOTYPE: $	1048	PROTOTYPE: $
610	CODE:	1049	CODE:
611	eio_set_max_idle (nthreads);	1050	eio_set_max_idle (nthreads);
612		1051
613	void	1052	void
		1053	idle_timeout (unsigned int seconds)
		1054	PROTOTYPE: $
		1055	CODE:
		1056	eio_set_idle_timeout (seconds);
		1057
		1058	void
614	max_outstanding (int maxreqs)	1059	max_outstanding (unsigned int maxreqs)
615	PROTOTYPE: $	1060	PROTOTYPE: $
616	CODE:	1061	CODE:
617	max_outstanding = maxreqs;	1062	max_outstanding = maxreqs;
618		1063
619	void	1064	void
		1065	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1066	PPCODE:
		1067	{
		1068	dREQ;
		1069
		1070	req->type = EIO_WD_OPEN;
		1071	req_set_path1 (req, pathname);
		1072
		1073	REQ_SEND;
		1074	}
		1075
		1076	void
620	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1077	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
621	PROTOTYPE: $$$;$
622	PPCODE:	1078	PPCODE:
623	{	1079	{
624	dREQ;	1080	dREQ;
625		1081
626	req->type = EIO_OPEN;	1082	req->type = EIO_OPEN;
627	req->sv1 = newSVsv (pathname);	1083	req_set_path1 (req, pathname);
628	req->ptr1 = SvPVbyte_nolen (req->sv1);
629	req->int1 = flags;	1084	req->int1 = flags;
630	req->int2 = mode;	1085	req->int2 = mode;
631		1086
632	REQ_SEND;	1087	REQ_SEND;
633	}	1088	}
634		1089
635	void	1090	void
636	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1091	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
637	PROTOTYPE: $;$
638	ALIAS:	1092	ALIAS:
639	aio_fsync = EIO_FSYNC	1093	aio_fsync = EIO_FSYNC
640	aio_fdatasync = EIO_FDATASYNC	1094	aio_fdatasync = EIO_FDATASYNC
		1095	aio_syncfs = EIO_SYNCFS
641	PPCODE:	1096	PPCODE:
642	{	1097	{
643	int fd = s_fileno_croak (fh, 0);	1098	int fd = s_fileno_croak (fh, 0);
644	dREQ;	1099	dREQ;
645		1100
646	req->type = ix;	1101	req->type = ix;
647	req->sv1 = newSVsv (fh);	1102	req->sv1 = newSVsv (fh);
648	req->int1 = fd;	1103	req->int1 = fd;
649		1104
650	REQ_SEND (req);	1105	REQ_SEND;
651	}	1106	}
652		1107
653	void	1108	void
654	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1109	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
655	PROTOTYPE: $$$$;$
656	PPCODE:	1110	PPCODE:
657	{	1111	{
658	int fd = s_fileno_croak (fh, 0);	1112	int fd = s_fileno_croak (fh, 0);
659	dREQ;	1113	dREQ;
660		1114
…		…
663	req->int1 = fd;	1117	req->int1 = fd;
664	req->offs = offset;	1118	req->offs = offset;
665	req->size = nbytes;	1119	req->size = nbytes;
666	req->int2 = flags;	1120	req->int2 = flags;
667		1121
668	REQ_SEND (req);	1122	REQ_SEND;
669	}	1123	}
670		1124
671	void	1125	void
672	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1126	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
673	PROTOTYPE: $;$
674	PPCODE:	1127	PPCODE:
675	{	1128	{
676	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
677	int fd = s_fileno_croak (fh, 0);	1129	int fd = s_fileno_croak (fh, 0);
678	dREQ;	1130	dREQ;
679		1131
680	if (close_pipe < 0)	1132	req->type = EIO_FALLOCATE;
		1133	req->sv1 = newSVsv (fh);
		1134	req->int1 = fd;
		1135	req->int2 = mode;
		1136	req->offs = offset;
		1137	req->size = len;
		1138
		1139	REQ_SEND;
		1140	}
		1141
		1142	void
		1143	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1144	PPCODE:
		1145	{
		1146	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1147	int fd = s_fileno_croak (fh, 0);
		1148	dREQ;
		1149
		1150	if (expect_false (close_fd < 0))
681	{	1151	{
682	int pipefd [2];	1152	int pipefd [2];
683		1153
		1154	if (
		1155	#ifdef _WIN32
		1156	_pipe (pipefd, 1, _O_BINARY) < 0
		1157	#else
684	if (pipe (pipefd) < 0	1158	pipe (pipefd) < 0
685	|| close (pipefd [1]) < 0
686	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1159	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1160	#endif
		1161	|| close (pipefd [1]) < 0
		1162	)
687	abort (); /*D*/	1163	abort (); /*D*/
688		1164
689	close_pipe = pipefd [0];	1165	close_fd = pipefd [0];
690	}	1166	}
691		1167
692	req->type = EIO_DUP2;	1168	req->type = EIO_DUP2;
693	req->int1 = close_pipe;	1169	req->int1 = close_fd;
694	req->sv2 = newSVsv (fh);	1170	req->sv2 = newSVsv (fh);
695	req->int2 = fd;	1171	req->int2 = fd;
696		1172
697	REQ_SEND (req);	1173	REQ_SEND;
		1174	}
		1175
		1176	void
		1177	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1178	PPCODE:
		1179	{
		1180	int fd = s_fileno_croak (fh, 0);
		1181	dREQ;
		1182
		1183	req->type = EIO_SEEK;
		1184	req->sv1 = newSVsv (fh);
		1185	req->int1 = fd;
		1186	req->offs = SvVAL64 (offset);
		1187	req->int2 = whence;
		1188
		1189	REQ_SEND;
698	}	1190	}
699		1191
700	void	1192	void
701	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1193	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
702	ALIAS:	1194	ALIAS:
703	aio_read = EIO_READ	1195	aio_read = EIO_READ
704	aio_write = EIO_WRITE	1196	aio_write = EIO_WRITE
705	PROTOTYPE: $$$$$;$
706	PPCODE:	1197	PPCODE:
707	{	1198	{
708	STRLEN svlen;	1199	STRLEN svlen;
709	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1200	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
710	char *svptr = SvPVbyte (data, svlen);	1201	char *svptr = SvPVbyte (data, svlen);
…		…
724	}	1215	}
725	else	1216	else
726	{	1217	{
727	/* read: check type and grow scalar as necessary */	1218	/* read: check type and grow scalar as necessary */
728	SvUPGRADE (data, SVt_PV);	1219	SvUPGRADE (data, SVt_PV);
		1220	if (SvLEN (data) >= SvCUR (data))
729	svptr = SvGROW (data, len + dataoffset + 1);	1221	svptr = SvGROW (data, len + dataoffset + 1);
		1222	else if (SvCUR (data) < len + dataoffset)
		1223	croak ("length + dataoffset outside of scalar, and cannot grow");
730	}	1224	}
731		1225
732	{	1226	{
733	dREQ;	1227	dREQ;
734		1228
…		…
750	REQ_SEND;	1244	REQ_SEND;
751	}	1245	}
752	}	1246	}
753		1247
754	void	1248	void
755	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1249	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
756	PROTOTYPE: $$;$	1250	ALIAS:
		1251	aio_readlink = EIO_READLINK
		1252	aio_realpath = EIO_REALPATH
757	PPCODE:	1253	PPCODE:
758	{	1254	{
759	SV *data;
760	dREQ;	1255	dREQ;
761		1256
762	req->type = EIO_READLINK;	1257	req->type = ix;
763	req->sv1 = newSVsv (path);	1258	req_set_path1 (req, pathname);
764	req->ptr1 = SvPVbyte_nolen (req->sv1);
765		1259
766	REQ_SEND;	1260	REQ_SEND;
767	}	1261	}
768		1262
769	void	1263	void
770	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1264	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
771	PROTOTYPE: $$$$;$
772	PPCODE:	1265	PPCODE:
773	{	1266	{
774	int ifd = s_fileno_croak (in_fh , 0);	1267	int ifd = s_fileno_croak (in_fh , 0);
775	int ofd = s_fileno_croak (out_fh, 1);	1268	int ofd = s_fileno_croak (out_fh, 1);
776	dREQ;	1269	dREQ;
…		…
786	REQ_SEND;	1279	REQ_SEND;
787	}	1280	}
788		1281
789	void	1282	void
790	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1283	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
791	PROTOTYPE: $$$;$
792	PPCODE:	1284	PPCODE:
793	{	1285	{
794	int fd = s_fileno_croak (fh, 0);	1286	int fd = s_fileno_croak (fh, 0);
795	dREQ;	1287	dREQ;
796		1288
…		…
804	}	1296	}
805		1297
806	void	1298	void
807	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1299	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
808	ALIAS:	1300	ALIAS:
809	aio_stat = EIO_STAT	1301	aio_stat = EIO_STAT
810	aio_lstat = EIO_LSTAT	1302	aio_lstat = EIO_LSTAT
		1303	aio_statvfs = EIO_STATVFS
811	PPCODE:	1304	PPCODE:
812	{	1305	{
813	dREQ;	1306	dREQ;
814		1307
815	req->sv1 = newSVsv (fh_or_path);	1308	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
816
817	if (SvPOK (req->sv1))
818	{
819	req->type = ix;
820	req->ptr1 = SvPVbyte_nolen (req->sv1);
821	}
822	else
823	{
824	req->type = EIO_FSTAT;
825	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
826	}
827		1309
828	REQ_SEND;	1310	REQ_SEND;
829	}	1311	}
		1312
		1313	UV
		1314	major (UV dev)
		1315	ALIAS:
		1316	minor = 1
		1317	CODE:
		1318	RETVAL = ix ? major (dev) : minor (dev);
		1319	OUTPUT:
		1320	RETVAL
		1321
		1322	UV
		1323	makedev (UV maj, UV min)
		1324	CODE:
		1325	RETVAL = makedev (maj, min);
		1326	OUTPUT:
		1327	RETVAL
830		1328
831	void	1329	void
832	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1330	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
833	PPCODE:	1331	PPCODE:
834	{	1332	{
835	dREQ;	1333	dREQ;
836		1334
837	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1335	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
838	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1336	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
839	req->sv1 = newSVsv (fh_or_path);	1337	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
840
841	if (SvPOK (req->sv1))
842	{
843	req->type = EIO_UTIME;
844	req->ptr1 = SvPVbyte_nolen (req->sv1);
845	}
846	else
847	{
848	req->type = EIO_FUTIME;
849	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
850	}
851		1338
852	REQ_SEND;	1339	REQ_SEND;
853	}	1340	}
854		1341
855	void	1342	void
856	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1343	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
857	PPCODE:	1344	PPCODE:
858	{	1345	{
859	dREQ;	1346	dREQ;
860		1347
861	req->sv1 = newSVsv (fh_or_path);
862	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1348	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
863		1349	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
864	if (SvPOK (req->sv1))
865	{
866	req->type = EIO_TRUNCATE;
867	req->ptr1 = SvPVbyte_nolen (req->sv1);
868	}
869	else
870	{
871	req->type = EIO_FTRUNCATE;
872	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
873	}
874		1350
875	REQ_SEND;	1351	REQ_SEND;
876	}	1352	}
877		1353
878	void	1354	void
879	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1355	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
880	ALIAS:
881	aio_chmod = EIO_CHMOD
882	aio_mkdir = EIO_MKDIR
883	PPCODE:	1356	PPCODE:
884	{	1357	{
885	dREQ;	1358	dREQ;
886		1359
887	req->int2 = mode;	1360	req->int2 = mode;
888	req->sv1 = newSVsv (fh_or_path);	1361	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
889
890	if (SvPOK (req->sv1))
891	{
892	req->type = ix;
893	req->ptr1 = SvPVbyte_nolen (req->sv1);
894	}
895	else
896	{
897	req->type = EIO_FCHMOD;
898	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
899	}
900		1362
901	REQ_SEND;	1363	REQ_SEND;
902	}	1364	}
903		1365
904	void	1366	void
…		…
907	{	1369	{
908	dREQ;	1370	dREQ;
909		1371
910	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1372	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
911	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1373	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
912	req->sv1 = newSVsv (fh_or_path);	1374	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
913
914	if (SvPOK (req->sv1))
915	{
916	req->type = EIO_CHOWN;
917	req->ptr1 = SvPVbyte_nolen (req->sv1);
918	}
919	else
920	{
921	req->type = EIO_FCHOWN;
922	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
923	}
924		1375
925	REQ_SEND;	1376	REQ_SEND;
926	}	1377	}
927		1378
928	void	1379	void
…		…
930	PPCODE:	1381	PPCODE:
931	{	1382	{
932	dREQ;	1383	dREQ;
933		1384
934	req->type = EIO_READDIR;	1385	req->type = EIO_READDIR;
935	req->sv1 = newSVsv (pathname);
936	req->ptr1 = SvPVbyte_nolen (req->sv1);
937	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1386	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
938		1387
939	if (flags & EIO_READDIR_DENTS)	1388	if (flags & EIO_READDIR_DENTS)
940	req->int1 |= EIO_READDIR_CUSTOM2;	1389	req->int1 |= EIO_READDIR_CUSTOM2;
941		1390
		1391	req_set_path1 (req, pathname);
		1392
942	REQ_SEND;	1393	REQ_SEND;
		1394	}
		1395
		1396	void
		1397	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1398	PPCODE:
		1399	{
		1400	dREQ;
		1401
		1402	req->type = EIO_MKDIR;
		1403	req->int2 = mode;
		1404	req_set_path1 (req, pathname);
		1405
		1406	REQ_SEND;
943	}	1407	}
944		1408
945	void	1409	void
946	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1410	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
947	ALIAS:	1411	ALIAS:
…		…
951	PPCODE:	1415	PPCODE:
952	{	1416	{
953	dREQ;	1417	dREQ;
954		1418
955	req->type = ix;	1419	req->type = ix;
956	req->sv1 = newSVsv (pathname);	1420	req_set_path1 (req, pathname);
957	req->ptr1 = SvPVbyte_nolen (req->sv1);
958		1421
959	REQ_SEND;	1422	REQ_SEND;
960	}	1423	}
961		1424
962	void	1425	void
…		…
965	aio_link = EIO_LINK	1428	aio_link = EIO_LINK
966	aio_symlink = EIO_SYMLINK	1429	aio_symlink = EIO_SYMLINK
967	aio_rename = EIO_RENAME	1430	aio_rename = EIO_RENAME
968	PPCODE:	1431	PPCODE:
969	{	1432	{
		1433	eio_wd wd2 = 0;
970	dREQ;	1434	dREQ;
971		1435
972	req->type = ix;	1436	req->type = ix;
973	req->sv1 = newSVsv (oldpath);	1437	req_set_path1 (req, oldpath);
974	req->ptr1 = SvPVbyte_nolen (req->sv1);	1438	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
975	req->sv2 = newSVsv (newpath);	1439	req->int3 = (long)wd2;
976	req->ptr2 = SvPVbyte_nolen (req->sv2);
977		1440
978	REQ_SEND;	1441	REQ_SEND;
979	}	1442	}
980		1443
981	void	1444	void
…		…
983	PPCODE:	1446	PPCODE:
984	{	1447	{
985	dREQ;	1448	dREQ;
986		1449
987	req->type = EIO_MKNOD;	1450	req->type = EIO_MKNOD;
988	req->sv1 = newSVsv (pathname);
989	req->ptr1 = SvPVbyte_nolen (req->sv1);
990	req->int2 = (mode_t)mode;	1451	req->int2 = (mode_t)mode;
991	req->offs = dev;	1452	req->offs = dev;
		1453	req_set_path1 (req, pathname);
992		1454
993	REQ_SEND;	1455	REQ_SEND;
994	}	1456	}
995		1457
996	void	1458	void
		1459	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1460	ALIAS:
		1461	aio_mtouch = EIO_MTOUCH
		1462	aio_msync = EIO_MSYNC
		1463	PPCODE:
		1464	{
		1465	STRLEN svlen;
		1466	char *svptr = SvPVbyte (data, svlen);
		1467	UV len = SvUV (length);
		1468
		1469	if (offset < 0)
		1470	offset += svlen;
		1471
		1472	if (offset < 0 || offset > svlen)
		1473	croak ("offset outside of scalar");
		1474
		1475	if (!SvOK (length) || len + offset > svlen)
		1476	len = svlen - offset;
		1477
		1478	{
		1479	dREQ;
		1480
		1481	req->type = ix;
		1482	req->sv2 = SvREFCNT_inc (data);
		1483	req->ptr2 = (char *)svptr + offset;
		1484	req->size = len;
		1485	req->int1 = flags;
		1486
		1487	REQ_SEND;
		1488	}
		1489	}
		1490
		1491	void
		1492	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1493	PPCODE:
		1494	{
		1495	STRLEN svlen;
		1496	char *svptr = SvPVbyte (data, svlen);
		1497	UV len = SvUV (length);
		1498
		1499	if (offset < 0)
		1500	offset += svlen;
		1501
		1502	if (offset < 0 || offset > svlen)
		1503	croak ("offset outside of scalar");
		1504
		1505	if (!SvOK (length) || len + offset > svlen)
		1506	len = svlen - offset;
		1507
		1508	{
		1509	dREQ;
		1510
		1511	req->type = EIO_MLOCK;
		1512	req->sv2 = SvREFCNT_inc (data);
		1513	req->ptr2 = (char *)svptr + offset;
		1514	req->size = len;
		1515
		1516	REQ_SEND;
		1517	}
		1518	}
		1519
		1520	void
		1521	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1522	PPCODE:
		1523	{
		1524	dREQ;
		1525
		1526	req->type = EIO_MLOCKALL;
		1527	req->int1 = flags;
		1528
		1529	REQ_SEND;
		1530	}
		1531
		1532	void
		1533	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1534	PPCODE:
		1535	{
		1536	int fd = s_fileno_croak (fh, 0);
		1537	dREQ;
		1538
		1539	req->type = EIO_CUSTOM;
		1540	req->sv1 = newSVsv (fh);
		1541	req->int1 = fd;
		1542
		1543	req->feed = fiemap;
		1544	#if HAVE_FIEMAP
		1545	/* keep our fingers crossed that the next two types are 64 bit */
		1546	req->offs = start;
		1547	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1548	req->int2 = flags;
		1549	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1550	#endif
		1551
		1552	REQ_SEND;
		1553	}
		1554
		1555	void
997	aio_busy (double delay, SV *callback=&PL_sv_undef)	1556	aio_busy (double delay, SV *callback=&PL_sv_undef)
998	PPCODE:	1557	PPCODE:
999	{	1558	{
1000	dREQ;	1559	dREQ;
1001		1560
…		…
1005	REQ_SEND;	1564	REQ_SEND;
1006	}	1565	}
1007		1566
1008	void	1567	void
1009	aio_group (SV *callback=&PL_sv_undef)	1568	aio_group (SV *callback=&PL_sv_undef)
1010	PROTOTYPE: ;$
1011	PPCODE:	1569	PPCODE:
1012	{	1570	{
1013	dREQ;	1571	dREQ;
1014		1572
1015	req->type = EIO_GROUP;	1573	req->type = EIO_GROUP;
1016		1574
1017	req_submit (req);	1575	req_submit (req);
1018	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1576	XPUSHs (req_sv (req, aio_grp_stash));
1019	}	1577	}
1020		1578
1021	void	1579	void
1022	aio_nop (SV *callback=&PL_sv_undef)	1580	aio_nop (SV *callback=&PL_sv_undef)
1023	ALIAS:	1581	ALIAS:
…		…
1032	REQ_SEND;	1590	REQ_SEND;
1033	}	1591	}
1034		1592
1035	int	1593	int
1036	aioreq_pri (int pri = 0)	1594	aioreq_pri (int pri = 0)
1037	PROTOTYPE: ;$
1038	CODE:	1595	CODE:
1039	RETVAL = next_pri;	1596	RETVAL = next_pri;
1040	if (items > 0)	1597	if (items > 0)
1041	{	1598	{
1042	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1599	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1054	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1611	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1055	next_pri = nice;	1612	next_pri = nice;
1056		1613
1057	void	1614	void
1058	flush ()	1615	flush ()
1059	PROTOTYPE:
1060	CODE:	1616	CODE:
1061	while (eio_nreqs ())	1617	while (eio_nreqs ())
1062	{	1618	{
1063	poll_wait ();	1619	poll_wait ();
1064	poll_cb ();	1620	poll_cb ();
1065	}	1621	}
1066		1622
1067	int	1623	int
1068	poll()	1624	poll ()
1069	PROTOTYPE:
1070	CODE:	1625	CODE:
1071	poll_wait ();	1626	poll_wait ();
1072	RETVAL = poll_cb ();	1627	RETVAL = poll_cb ();
1073	OUTPUT:	1628	OUTPUT:
1074	RETVAL	1629	RETVAL
1075		1630
1076	int	1631	int
1077	poll_fileno()	1632	poll_fileno ()
1078	PROTOTYPE:
1079	CODE:	1633	CODE:
1080	RETVAL = s_epipe_fd (&respipe);	1634	RETVAL = s_epipe_fd (&respipe);
1081	OUTPUT:	1635	OUTPUT:
1082	RETVAL	1636	RETVAL
1083		1637
1084	int	1638	int
1085	poll_cb(...)	1639	poll_cb (...)
1086	PROTOTYPE:	1640	PROTOTYPE:
1087	CODE:	1641	CODE:
1088	RETVAL = poll_cb ();	1642	RETVAL = poll_cb ();
1089	OUTPUT:	1643	OUTPUT:
1090	RETVAL	1644	RETVAL
1091		1645
1092	void	1646	void
1093	poll_wait()	1647	poll_wait ()
1094	PROTOTYPE:
1095	CODE:	1648	CODE:
1096	poll_wait ();	1649	poll_wait ();
1097		1650
1098	int	1651	int
1099	nreqs()	1652	nreqs ()
1100	PROTOTYPE:
1101	CODE:	1653	CODE:
1102	RETVAL = eio_nreqs ();	1654	RETVAL = eio_nreqs ();
1103	OUTPUT:	1655	OUTPUT:
1104	RETVAL	1656	RETVAL
1105		1657
1106	int	1658	int
1107	nready()	1659	nready ()
1108	PROTOTYPE:
1109	CODE:	1660	CODE:
1110	RETVAL = eio_nready ();	1661	RETVAL = eio_nready ();
1111	OUTPUT:	1662	OUTPUT:
1112	RETVAL	1663	RETVAL
1113		1664
1114	int	1665	int
1115	npending()	1666	npending ()
1116	PROTOTYPE:
1117	CODE:	1667	CODE:
1118	RETVAL = eio_npending ();	1668	RETVAL = eio_npending ();
1119	OUTPUT:	1669	OUTPUT:
1120	RETVAL	1670	RETVAL
1121		1671
1122	int	1672	int
1123	nthreads()	1673	nthreads ()
1124	PROTOTYPE:
1125	CODE:	1674	CODE:
1126	RETVAL = eio_nthreads ();	1675	RETVAL = eio_nthreads ();
1127	OUTPUT:	1676	OUTPUT:
1128	RETVAL	1677	RETVAL
1129		1678
1130	int	1679	int
1131	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1680	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1132	PROTOTYPE: $$$$
1133	CODE:	1681	CODE:
1134	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1135	RETVAL = posix_fadvise (fh, offset, length, advice);	1682	RETVAL = posix_fadvise (fh, offset, length, advice);
1136	#else
1137	RETVAL = errno = ENOSYS;
1138	#endif
1139	OUTPUT:	1683	OUTPUT:
1140	RETVAL	1684	RETVAL
1141		1685
1142	ssize_t	1686	IV
1143	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1687	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1144	PROTOTYPE: $$$$
1145	CODE:	1688	CODE:
1146	eio_sendfile_sync (ofh, ifh, offset, count);	1689	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1690	OUTPUT:
		1691	RETVAL
		1692
		1693	void
		1694	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1695	PPCODE:
		1696	sv_unmagic (scalar, MMAP_MAGIC);
		1697	{
		1698	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1699	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1700	if (addr == (void *)-1)
		1701	XSRETURN_NO;
		1702
		1703	sv_force_normal (scalar);
		1704
		1705	/* we store the length in mg_obj, as namlen is I32 :/ */
		1706	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1707	->mg_obj = (SV *)length;
		1708
		1709	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1710
		1711	if (!(prot & PROT_WRITE))
		1712	SvREADONLY_on (scalar);
		1713
		1714	if (SvLEN (scalar))
		1715	Safefree (SvPVX (scalar));
		1716
		1717	SvPVX (scalar) = (char *)addr;
		1718	SvCUR_set (scalar, length);
		1719	SvLEN_set (scalar, 0);
		1720	SvPOK_only (scalar);
		1721
		1722	XSRETURN_YES;
		1723	}
		1724
		1725	void
		1726	munmap (SV *scalar)
		1727	CODE:
		1728	sv_unmagic (scalar, MMAP_MAGIC);
		1729
		1730	int
		1731	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1732	ALIAS:
		1733	mprotect = 1
		1734	CODE:
		1735	{
		1736	STRLEN svlen;
		1737	void *addr = SvPVbyte (scalar, svlen);
		1738	size_t len = SvUV (length);
		1739
		1740	if (offset < 0)
		1741	offset += svlen;
		1742
		1743	if (offset < 0 || offset > svlen)
		1744	croak ("offset outside of scalar");
		1745
		1746	if (!SvOK (length) || len + offset > svlen)
		1747	len = svlen - offset;
		1748
		1749	addr = (void *)(((intptr_t)addr) + offset);
		1750	eio_page_align (&addr, &len);
		1751
		1752	switch (ix)
		1753	{
		1754	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1755	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1756	}
		1757	}
		1758	OUTPUT:
		1759	RETVAL
		1760
		1761	int
		1762	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1763	CODE:
		1764	{
		1765	STRLEN svlen;
		1766	void *addr = SvPVbyte (scalar, svlen);
		1767	size_t len = SvUV (length);
		1768
		1769	if (offset < 0)
		1770	offset += svlen;
		1771
		1772	if (offset < 0 || offset > svlen)
		1773	croak ("offset outside of scalar");
		1774
		1775	if (!SvOK (length) || len + offset > svlen)
		1776	len = svlen - offset;
		1777
		1778	addr = (void *)(((intptr_t)addr) + offset);
		1779	eio_page_align (&addr, &len);
		1780	#if _POSIX_MEMLOCK_RANGE
		1781	RETVAL = munlock (addr, len);
		1782	#else
		1783	RETVAL = EIO_ENOSYS ();
		1784	#endif
		1785	}
		1786	OUTPUT:
		1787	RETVAL
		1788
		1789	int
		1790	munlockall ()
		1791	CODE:
		1792	#if _POSIX_MEMLOCK
		1793	munlockall ();
		1794	#else
		1795	RETVAL = EIO_ENOSYS ();
		1796	#endif
		1797	OUTPUT:
		1798	RETVAL
		1799
		1800	int
		1801	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1802	CODE:
		1803	{
		1804	#if HAVE_LINUX_SPLICE
		1805	loff_t off_in_, off_out_;
		1806	RETVAL = splice (
		1807	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1808	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1809	length, flags
		1810	);
		1811	#else
		1812	RETVAL = EIO_ENOSYS ();
		1813	#endif
		1814	}
		1815	OUTPUT:
		1816	RETVAL
		1817
		1818	int
		1819	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1820	CODE:
		1821	#if HAVE_LINUX_SPLICE
		1822	RETVAL = tee (rfh, wfh, length, flags);
		1823	#else
		1824	RETVAL = EIO_ENOSYS ();
		1825	#endif
		1826	OUTPUT:
		1827	RETVAL
1147		1828
1148	void _on_next_submit (SV *cb)	1829	void _on_next_submit (SV *cb)
1149	CODE:	1830	CODE:
1150	SvREFCNT_dec (on_next_submit);	1831	SvREFCNT_dec (on_next_submit);
1151	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1832	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1152		1833
1153	PROTOTYPES: DISABLE	1834	PROTOTYPES: DISABLE
1154		1835
		1836	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1837
		1838	BOOT:
		1839	{
		1840	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1841	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1842	}
		1843
		1844	void
		1845	DESTROY (SV *self)
		1846	CODE:
		1847	{
		1848	aio_wd wd = SvAIO_WD (self);
		1849	#if HAVE_AT
		1850	{
		1851	SV *callback = &PL_sv_undef;
		1852	dREQ; /* clobbers next_pri :/ */
		1853	next_pri = req->pri; /* restore next_pri */
		1854	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1855	req->type = EIO_WD_CLOSE;
		1856	req->wd = wd;
		1857	REQ_SEND;
		1858	}
		1859	#else
		1860	eio_wd_close_sync (wd);
		1861	#endif
		1862	}
		1863
1155	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1864	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1156		1865
1157	void	1866	void
1158	cancel (aio_req_ornot req)	1867	cancel (aio_req_ornot req)
1159	CODE:	1868	CODE:

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