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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 1.211 by root, Sat Apr 7 00:50:33 2012 UTC

…		…
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <limits.h>	16	#include <limits.h>
17	#include <fcntl.h>	17	#include <fcntl.h>
18	#include <sched.h>	18	#include <sched.h>
19		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
		24	#if __linux__
		25	# include <linux/fs.h>
		26	# ifdef FS_IOC_FIEMAP
		27	# include <linux/fiemap.h>
		28	# define HAVE_FIEMAP 1
		29	# endif
		30	#endif
		31
20	/* perl namespace pollution */	32	/* perl namespace pollution */
21	#undef VERSION	33	#undef VERSION
22
23	#ifdef _WIN32
24
25	# define EIO_STRUCT_DIRENT Direntry_t
26	# undef malloc
27	# undef free
28
29	// perl overrides all those nice win32 functions
30	# undef open
31	# undef read
32	# undef write
33	# undef send
34	# undef recv
35	# undef stat
36	# undef fstat
37	# define lstat stat
38	# undef truncate
39	# undef ftruncate
40	# undef open
41	# undef close
42	# undef unlink
43	# undef rmdir
44	# undef rename
45	# undef lseek
46
47	# define chown(a,b,c) (errno = ENOSYS, -1)
48	# define fchown(a,b,c) (errno = ENOSYS, -1)
49	# define fchmod(a,b) (errno = ENOSYS, -1)
50	# define symlink(a,b) (errno = ENOSYS, -1)
51	# define readlink(a,b,c) (errno = ENOSYS, -1)
52	# define mknod(a,b,c) (errno = ENOSYS, -1)
53	# define truncate(a,b) (errno = ENOSYS, -1)
54	# define ftruncate(fd,o) chsize ((fd), (o))
55	# define fsync(fd) _commit (fd)
56	# define opendir(fd) (errno = ENOSYS, 0)
57	# define readdir(fd) (errno = ENOSYS, -1)
58	# define closedir(fd) (errno = ENOSYS, -1)
59	# define mkdir(a,b) mkdir (a)
60
61	#else
62
63	# include <sys/time.h>
64	# include <sys/select.h>
65	# include <unistd.h>
66	# include <utime.h>
67	# include <signal.h>
68	# define EIO_STRUCT_DIRENT struct dirent
69
70	#endif
71		34
72	/* perl stupidly overrides readdir and maybe others */	35	/* perl stupidly overrides readdir and maybe others */
73	/* with thread-unsafe versions, imagine that :( */	36	/* with thread-unsafe versions, imagine that :( */
74	#undef readdir	37	#undef readdir
75	#undef opendir	38	#undef opendir
76	#undef closedir	39	#undef closedir
77		40
		41	#ifdef _WIN32
		42
		43	// perl overrides all those nice libc functions
		44
		45	#undef malloc
		46	#undef free
		47	#undef open
		48	#undef read
		49	#undef write
		50	#undef send
		51	#undef recv
		52	#undef stat
		53	#undef lstat
		54	#undef fstat
		55	#undef truncate
		56	#undef ftruncate
		57	#undef open
		58	#undef link
		59	#undef close
		60	#undef unlink
		61	#undef mkdir
		62	#undef rmdir
		63	#undef rename
		64	#undef lseek
		65	#undef opendir
		66	#undef readdir
		67	#undef closedir
		68	#undef chmod
		69	#undef fchmod
		70	#undef dup
		71	#undef dup2
		72	#undef abort
		73	#undef pipe
		74
		75	#define EIO_STRUCT_STAT struct _stati64
78	#define EIO_STRUCT_STAT Stat_t	76	#define EIO_STRUCT_STATI64
79		77
80	/* use NV for 32 bit perls as it allows larger offsets */
81	#if IVSIZE >= 8
82	# define VAL64 IV
83	# define SvVAL64 SvIV
84	# define newSVval64 newSViv
85	#else	78	#else
86	# define VAL64 NV	79
87	# define SvVAL64 SvNV	80	#include <sys/time.h>
88	# define newSVval64 newSVnv	81	#include <sys/select.h>
		82	#include <unistd.h>
		83	#include <utime.h>
		84	#include <signal.h>
		85
		86	#define EIO_STRUCT_STAT Stat_t
		87
89	#endif	88	#endif
90		89
91	/*****************************************************************************/	90	/*****************************************************************************/
92		91
93	#if __GNUC__ >= 3	92	#if __GNUC__ >= 3
…		…
99	#define expect_false(expr) expect ((expr) != 0, 0)	98	#define expect_false(expr) expect ((expr) != 0, 0)
100	#define expect_true(expr) expect ((expr) != 0, 1)	99	#define expect_true(expr) expect ((expr) != 0, 1)
101		100
102	/*****************************************************************************/	101	/*****************************************************************************/
103		102
104	static HV *stash;
105	typedef SV SV8; /* byte-sv, used for argument-checking */	103	typedef SV SV8; /* byte-sv, used for argument-checking */
106	typedef int aio_rfd; /* read file desriptor */	104	typedef int aio_rfd; /* read file desriptor */
107	typedef int aio_wfd; /* write file descriptor */	105	typedef int aio_wfd; /* write file descriptor */
108		106
109	#define AIO_REQ_KLASS "IO::AIO::REQ"	107	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
110	#define AIO_GRP_KLASS "IO::AIO::GRP"
111		108
112	#define EIO_REQ_MEMBERS \	109	#define EIO_REQ_MEMBERS \
113	SV *callback; \	110	SV *callback; \
114	SV *sv1, *sv2; \	111	SV *sv1, *sv2; \
		112	SV *sv3, *sv4; \
115	STRLEN stroffset; \	113	STRLEN stroffset; \
116	SV *self;	114	SV *self;
117		115
118	#define EIO_NO_WRAPPERS 1	116	#define EIO_NO_WRAPPERS 1
119		117
		118	#include "libeio/config.h"
120	#include "libeio/eio.h"	119	#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		120
147	static int req_invoke (eio_req *req);	121	static int req_invoke (eio_req *req);
148	#define EIO_FINISH(req) req_invoke (req)	122	#define EIO_FINISH(req) req_invoke (req)
149	static void req_destroy (eio_req *grp);	123	static void req_destroy (eio_req *grp);
150	#define EIO_DESTROY(req) req_destroy (req)	124	#define EIO_DESTROY(req) req_destroy (req)
151		125
		126	#include "libeio/eio.c"
		127
		128	#if !HAVE_POSIX_FADVISE
		129	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		130	#endif
		131
		132	#if !HAVE_POSIX_MADVISE
		133	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		134	#endif
		135
		136	#ifndef MAP_ANONYMOUS
		137	# ifdef MAP_ANON
		138	# define MAP_ANONYMOUS MAP_ANON
		139	# else
		140	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		141	# endif
		142	#endif
		143
		144	/* defines all sorts of constants to 0 unless they are already defined */
		145	#include "def0.h"
		146
		147	#ifndef makedev
		148	# define makedev(maj,min) (((maj) << 8) | (min))
		149	#endif
		150	#ifndef major
		151	# define major(dev) ((dev) >> 8)
		152	#endif
		153	#ifndef minor
		154	# define minor(dev) ((dev) & 0xff)
		155	#endif
		156
		157	#ifndef PAGESIZE
		158	# define PAGESIZE sysconf (_SC_PAGESIZE)
		159	#endif
		160
		161	/*****************************************************************************/
		162
		163	static void
		164	fiemap (eio_req *req)
		165	{
		166	req->result = -1;
		167
		168	#if HAVE_FIEMAP
		169	int count = req->int3;
		170
		171	/* heuristic: first try with 64 extents if we don't know how many, */
		172	/* as most files have (hopefully) fewer than this many extents */
		173	/* in fact, most should have <= 2, so maybe the 72 below is probably overkill */
		174	if (count < 0)
		175	count = 72; /* for what it's worth, 72 extents fit nicely into 4kb */
		176
		177	for (;;)
		178	{
		179	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		180	errno = ENOMEM;
		181	if (!fiemap)
		182	return;
		183
		184	req->ptr1 = fiemap;
		185	req->flags |= EIO_FLAG_PTR1_FREE;
		186
		187	fiemap->fm_start = req->offs;
		188	fiemap->fm_length = req->size;
		189	fiemap->fm_flags = req->int2;
		190	fiemap->fm_extent_count = count;
		191
		192	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		193	return;
		194
		195	if (req->int3 >= 0)
		196	break; /* when not autosizing we are done */
		197
		198	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
		199	break; /* autosizing successful, we are done */
		200
		201	fiemap->fm_flags = req->int2;
		202	fiemap->fm_extent_count = 0;
		203
		204	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		205	return;
		206
		207	count = fiemap->fm_mapped_extents;
		208
		209	free (fiemap);
		210	}
		211
		212	req->result = 0;
		213
		214	#else
		215	errno = ENOSYS;
		216	#endif
		217	}
		218
		219	/*****************************************************************************/
		220
152	enum {	221	enum {
153	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	222	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
154	};	223	};
155		224
156	#include "libeio/eio.c"
157
158	typedef eio_req *aio_req;	225	typedef eio_req *aio_req;
159	typedef eio_req *aio_req_ornot;	226	typedef eio_req *aio_req_ornot;
		227	typedef eio_wd aio_wd;
160		228
161	static SV *on_next_submit;	229	static SV *on_next_submit;
162	static int next_pri = EIO_PRI_DEFAULT;	230	static int next_pri = EIO_PRI_DEFAULT;
163	static int max_outstanding;	231	static int max_outstanding;
164		232
165	static s_epipe respipe;	233	static s_epipe respipe;
166		234
167	static void req_destroy (aio_req req);	235	static void req_destroy (aio_req req);
168	static void req_cancel (aio_req req);	236	static void req_cancel (aio_req req);
169		237
170	static void want_poll (void)	238	static void
		239	want_poll (void)
171	{	240	{
172	/* write a dummy byte to the pipe so fh becomes ready */	241	/* write a dummy byte to the pipe so fh becomes ready */
173	s_epipe_signal (&respipe);	242	s_epipe_signal (&respipe);
174	}	243	}
175		244
176	static void done_poll (void)	245	static void
		246	done_poll (void)
177	{	247	{
178	/* read any signals sent by the worker threads */	248	/* read any signals sent by the worker threads */
179	s_epipe_drain (&respipe);	249	s_epipe_drain (&respipe);
180	}	250	}
181		251
182	/* must be called at most once */	252	/* must be called at most once */
183	static SV *req_sv (aio_req req, const char *klass)	253	static SV *
		254	req_sv (aio_req req, HV *stash)
184	{	255	{
185	if (!req->self)	256	if (!req->self)
186	{	257	{
187	req->self = (SV *)newHV ();	258	req->self = (SV *)newHV ();
188	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	259	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
189	}	260	}
190		261
191	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	262	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
192	}	263	}
193		264
194	static aio_req SvAIO_REQ (SV *sv)	265	static SV *
		266	newSVaio_wd (aio_wd wd)
		267	{
		268	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		269	}
		270
		271	static aio_req
		272	SvAIO_REQ (SV *sv)
195	{	273	{
196	MAGIC *mg;	274	MAGIC *mg;
197		275
198	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	276	if (!SvROK (sv)
		277	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
		278	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		279	&& SvSTASH (SvRV (sv)) != aio_req_stash
		280	&& !sv_derived_from (sv, "IO::AIO::REQ")))
199	croak ("object of class " AIO_REQ_KLASS " expected");	281	croak ("object of class IO::AIO::REQ expected");
200		282
201	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	283	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
202		284
203	return mg ? (aio_req)mg->mg_ptr : 0;	285	return mg ? (aio_req)mg->mg_ptr : 0;
204	}	286	}
205		287
		288	static aio_wd
		289	SvAIO_WD (SV *sv)
		290	{
		291	if (!SvROK (sv)
		292	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		293	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		294	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		295
		296	return (aio_wd)(long)SvIVX (SvRV (sv));
		297	}
		298
		299	static void
206	static void aio_grp_feed (aio_req grp)	300	aio_grp_feed (aio_req grp)
207	{	301	{
208	if (grp->sv2 && SvOK (grp->sv2))	302	if (grp->sv2 && SvOK (grp->sv2))
209	{	303	{
210	dSP;	304	dSP;
211		305
212	ENTER;	306	ENTER;
213	SAVETMPS;	307	SAVETMPS;
214	PUSHMARK (SP);	308	PUSHMARK (SP);
215	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	309	XPUSHs (req_sv (grp, aio_grp_stash));
216	PUTBACK;	310	PUTBACK;
217	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	311	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
218	SPAGAIN;	312	SPAGAIN;
219	FREETMPS;	313	FREETMPS;
220	LEAVE;	314	LEAVE;
221	}	315	}
222	}	316	}
223		317
		318	static void
224	static void req_submit (eio_req *req)	319	req_submit (eio_req *req)
225	{	320	{
226	eio_submit (req);	321	eio_submit (req);
227		322
228	if (expect_false (on_next_submit))	323	if (expect_false (on_next_submit))
229	{	324	{
…		…
236	PUTBACK;	331	PUTBACK;
237	call_sv (cb, G_DISCARD | G_EVAL);	332	call_sv (cb, G_DISCARD | G_EVAL);
238	}	333	}
239	}	334	}
240		335
		336	static int
241	static int req_invoke (eio_req *req)	337	req_invoke (eio_req *req)
242	{	338	{
243	dSP;
244
245	if (req->flags & FLAG_SV2_RO_OFF)	339	if (req->flags & FLAG_SV2_RO_OFF)
246	SvREADONLY_off (req->sv2);	340	SvREADONLY_off (req->sv2);
247		341
248	if (!EIO_CANCELLED (req) && req->callback)	342	if (!EIO_CANCELLED (req) && req->callback)
249	{	343	{
		344	dSP;
		345	static SV *sv_result_cache; /* caches the result integer SV */
		346	SV *sv_result;
		347
250	ENTER;	348	ENTER;
251	SAVETMPS;	349	SAVETMPS;
252	PUSHMARK (SP);	350	PUSHMARK (SP);
253	EXTEND (SP, 1);	351	EXTEND (SP, 1);
254		352
		353	/* do not recreate the result IV from scratch each time */
		354	if (expect_true (sv_result_cache))
		355	{
		356	sv_result = sv_result_cache; sv_result_cache = 0;
		357	SvIV_set (sv_result, req->result);
		358	SvIOK_only (sv_result);
		359	}
		360	else
		361	{
		362	sv_result = newSViv (req->result);
		363	SvREADONLY_on (sv_result);
		364	}
		365
255	switch (req->type)	366	switch (req->type)
256	{	367	{
		368	case EIO_WD_OPEN:
		369	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		370	break;
		371
257	case EIO_READDIR:	372	case EIO_READDIR:
258	{	373	{
259	SV *rv = &PL_sv_undef;	374	SV *rv = &PL_sv_undef;
260		375
261	if (req->result >= 0)	376	if (req->result >= 0)
…		…
326	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	441	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
327	char sym [64];	442	char sym [64];
328	int symlen;	443	int symlen;
329		444
330	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);	445	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
331	gv_init (gv, stash, sym, symlen, 0);	446	gv_init (gv, aio_stash, sym, symlen, 0);
332		447
333	symlen = snprintf (	448	symlen = snprintf (
334	sym,	449	sym,
335	sizeof (sym),	450	sizeof (sym),
336	"%s&=%d",	451	"%s&=%d",
…		…
344		459
345	PUSHs (fh);	460	PUSHs (fh);
346	}	461	}
347	break;	462	break;
348		463
		464	case EIO_STATVFS:
		465	case EIO_FSTATVFS:
		466	{
		467	SV *rv = &PL_sv_undef;
		468
		469	#ifndef _WIN32
		470	if (req->result >= 0)
		471	{
		472	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		473	HV *hv = newHV ();
		474
		475	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		476
		477	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		478	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		479	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		480	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		481	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		482	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		483	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		484	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		485	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		486	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		487	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		488	}
		489	#endif
		490
		491	PUSHs (rv);
		492	}
		493
		494	break;
		495
349	case EIO_GROUP:	496	case EIO_GROUP:
350	req->int1 = 2; /* mark group as finished */	497	req->int1 = 2; /* mark group as finished */
351		498
352	if (req->sv1)	499	if (req->sv1)
353	{	500	{
…		…
363	case EIO_NOP:	510	case EIO_NOP:
364	case EIO_BUSY:	511	case EIO_BUSY:
365	break;	512	break;
366		513
367	case EIO_READLINK:	514	case EIO_READLINK:
		515	case EIO_REALPATH:
368	if (req->result > 0)	516	if (req->result > 0)
369	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	517	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
370	break;	518	break;
371		519
372	case EIO_STAT:	520	case EIO_STAT:
373	case EIO_LSTAT:	521	case EIO_LSTAT:
374	case EIO_FSTAT:	522	case EIO_FSTAT:
375	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	523	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		524
376	PL_laststatval = req->result;	525	if (!(PL_laststatval = req->result))
		526	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
377	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	527	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
378	PUSHs (sv_2mortal (newSViv (req->result)));	528
		529	PUSHs (sv_result);
		530	break;
		531
		532	case EIO_SEEK:
		533	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
379	break;	534	break;
380		535
381	case EIO_READ:	536	case EIO_READ:
382	{	537	{
383	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	538	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
384	*SvEND (req->sv2) = 0;	539	*SvEND (req->sv2) = 0;
385	SvPOK_only (req->sv2);	540	SvPOK_only (req->sv2);
386	SvSETMAGIC (req->sv2);	541	SvSETMAGIC (req->sv2);
387	PUSHs (sv_2mortal (newSViv (req->result)));	542	PUSHs (sv_result);
388	}	543	}
389	break;	544	break;
390		545
391	case EIO_DUP2:	546	case EIO_CUSTOM:
		547	if (req->feed == fiemap)
		548	{
		549	#if HAVE_FIEMAP
		550	if (!req->result)
		551	{
		552	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		553
		554	if (fiemap->fm_extent_count)
		555	{
		556	AV *av = newAV ();
		557	int i;
		558
		559	while (fiemap->fm_mapped_extents)
		560	{
		561	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		562	AV *ext_av = newAV ();
		563
		564	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		565	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		566	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		567	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		568
		569	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		570	}
		571
		572	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		573	}
		574	else
		575	{
		576	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		577	PUSHs (sv_result);
		578	}
		579	}
		580	#endif
		581	}
		582	else
		583	PUSHs (sv_result);
		584	break;
		585
		586	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
392	if (req->result > 0)	587	if (req->result > 0)
393	req->result = 0;	588	SvIV_set (sv_result, 0);
394	/* FALLTHROUGH */	589	/* FALLTHROUGH */
395		590
396	default:	591	default:
397	PUSHs (sv_2mortal (newSViv (req->result)));	592	PUSHs (sv_result);
398	break;	593	break;
399	}	594	}
400		595
401	errno = req->errorno;	596	errno = req->errorno;
402		597
403	PUTBACK;	598	PUTBACK;
404	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	599	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
405	SPAGAIN;	600	SPAGAIN;
406		601
		602	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		603	SvREFCNT_dec (sv_result);
		604	else
		605	sv_result_cache = sv_result;
		606
407	FREETMPS;	607	FREETMPS;
408	LEAVE;	608	LEAVE;
409		609
410	PUTBACK;	610	PUTBACK;
411	}	611	}
412		612
413	return !!SvTRUE (ERRSV);	613	return !!SvTRUE (ERRSV);
414	}	614	}
415		615
		616	static void
416	static void req_destroy (aio_req req)	617	req_destroy (aio_req req)
417	{	618	{
418	if (req->self)	619	if (req->self)
419	{	620	{
420	sv_unmagic (req->self, PERL_MAGIC_ext);	621	sv_unmagic (req->self, PERL_MAGIC_ext);
421	SvREFCNT_dec (req->self);	622	SvREFCNT_dec (req->self);
422	}	623	}
423		624
424	SvREFCNT_dec (req->sv1);	625	SvREFCNT_dec (req->sv1);
425	SvREFCNT_dec (req->sv2);	626	SvREFCNT_dec (req->sv2);
		627	SvREFCNT_dec (req->sv3);
		628	SvREFCNT_dec (req->sv4);
426	SvREFCNT_dec (req->callback);	629	SvREFCNT_dec (req->callback);
427		630
428	Safefree (req);	631	free (req);
429	}	632	}
430		633
		634	static void
431	static void req_cancel_subs (aio_req grp)	635	req_cancel_subs (aio_req grp)
432	{	636	{
433	aio_req sub;
434
435	if (grp->type != EIO_GROUP)	637	if (grp->type != EIO_GROUP)
436	return;	638	return;
437		639
438	SvREFCNT_dec (grp->sv2);	640	SvREFCNT_dec (grp->sv2);
439	grp->sv2 = 0;	641	grp->sv2 = 0;
440		642
441	eio_grp_cancel (grp);	643	eio_grp_cancel (grp);
442	}	644	}
443		645
444	static void	646	static void ecb_cold
445	create_respipe (void)	647	create_respipe (void)
446	{	648	{
447	if (s_epipe_renew (&respipe))	649	if (s_epipe_renew (&respipe))
448	croak ("IO::AIO: unable to initialize result pipe");	650	croak ("IO::AIO: unable to initialize result pipe");
449	}	651	}
450		652
451	static void poll_wait (void)	653	static void
		654	poll_wait (void)
452	{	655	{
453	while (eio_nreqs ())	656	while (eio_nreqs ())
454	{	657	{
455	int size;	658	int size;
456		659
…		…
465		668
466	s_epipe_wait (&respipe);	669	s_epipe_wait (&respipe);
467	}	670	}
468	}	671	}
469		672
470	static int poll_cb (void)	673	static int
		674	poll_cb (void)
471	{	675	{
472	for (;;)	676	for (;;)
473	{	677	{
474	int res = eio_poll ();	678	int res = eio_poll ();
475		679
…		…
481		685
482	poll_wait ();	686	poll_wait ();
483	}	687	}
484	}	688	}
485		689
486	static void atfork_child (void)	690	static void ecb_cold
		691	reinit (void)
487	{	692	{
488	create_respipe ();	693	create_respipe ();
		694
		695	if (eio_init (want_poll, done_poll) < 0)
		696	croak ("IO::AIO: unable to initialise eio library");
489	}	697	}
		698
		699	/*****************************************************************************/
		700
		701	#if !_POSIX_MAPPED_FILES
		702	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		703	# define munmap(addr,length) (errno = ENOSYS, -1)
		704	#endif
		705
		706	#if !_POSIX_MEMORY_PROTECTION
		707	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		708	# define PROT_NONE 0
		709	# define PROT_WRITE 0
		710	# define MAP_PRIVATE 0
		711	# define MAP_SHARED 0
		712	# define MAP_FIXED 0
		713	#endif
		714
		715	#define MMAP_MAGIC PERL_MAGIC_ext
		716
		717	static int ecb_cold
		718	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		719	{
		720	int old_errno = errno;
		721	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		722	errno = old_errno;
		723
		724	mg->mg_obj = 0; /* just in case */
		725
		726	SvREADONLY_off (sv);
		727
		728	if (SvPVX (sv) != mg->mg_ptr)
		729	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		730
		731	SvCUR_set (sv, 0);
		732	SvPVX (sv) = 0;
		733	SvOK_off (sv);
		734
		735	return 0;
		736	}
		737
		738	static MGVTBL mmap_vtbl = {
		739	0, 0, 0, 0, mmap_free
		740	};
		741
		742	/*****************************************************************************/
490		743
491	static SV *	744	static SV *
492	get_cb (SV *cb_sv)	745	get_cb (SV *cb_sv)
493	{	746	{
494	SvGETMAGIC (cb_sv);	747	SvGETMAGIC (cb_sv);
495	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	748	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
496	}	749	}
497		750
		751	static aio_req ecb_noinline
		752	dreq (SV *callback)
		753	{
		754	SV *cb_cv;
		755	aio_req req;
		756	int req_pri = next_pri;
		757	next_pri = EIO_PRI_DEFAULT;
		758
		759	cb_cv = get_cb (callback);
		760
		761	req = calloc (sizeof (*req), 1);
		762	if (!req)
		763	croak ("out of memory during eio_req allocation");
		764
		765	req->callback = SvREFCNT_inc (cb_cv);
		766	req->pri = req_pri;
		767
		768	return req;
		769	}
		770
498	#define dREQ \	771	#define dREQ \
499	SV *cb_cv; \	772	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		773
513	#define REQ_SEND \	774	#define REQ_SEND \
514	PUTBACK; \	775	PUTBACK; \
515	req_submit (req); \	776	req_submit (req); \
516	SPAGAIN; \	777	SPAGAIN; \
517	\	778	\
518	if (GIMME_V != G_VOID) \	779	if (GIMME_V != G_VOID) \
519	XPUSHs (req_sv (req, AIO_REQ_KLASS));	780	XPUSHs (req_sv (req, aio_req_stash));
		781
		782	ecb_inline void
		783	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		784	{
		785	if (expect_false (SvROK (path)))
		786	{
		787	SV *rv = SvRV (path);
		788	SV *wdob;
		789
		790	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		791	{
		792	path = AvARRAY (rv)[1];
		793	wdob = AvARRAY (rv)[0];
		794
		795	if (SvOK (wdob))
		796	{
		797	*wd = SvAIO_WD (wdob);
		798	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		799	}
		800	else
		801	*wd = EIO_INVALID_WD;
		802	}
		803	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		804	{
		805	*wd = (aio_wd)(long)SvIVX (rv);
		806	*wdsv = SvREFCNT_inc_NN (rv);
		807	*ptr = ".";
		808	return; /* path set to "." */
		809	}
		810	else
		811	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		812	}
		813
		814	*pathsv = newSVsv (path);
		815	*ptr = SvPVbyte_nolen (*pathsv);
		816	}
		817
		818	static void ecb_noinline
		819	req_set_path1 (aio_req req, SV *path)
		820	{
		821	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		822	}
		823
		824	static void ecb_noinline
		825	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		826	{
		827	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		828
		829	switch (SvTYPE (rv))
		830	{
		831	case SVt_PVIO:
		832	case SVt_PVLV:
		833	case SVt_PVGV:
		834	req->type = type_fh;
		835	req->sv1 = newSVsv (fh_or_path);
		836	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		837	break;
		838
		839	default:
		840	req->type = type_path;
		841	req_set_path1 (req, fh_or_path);
		842	break;
		843	}
		844	}
		845
		846	XS(boot_IO__AIO) ecb_cold;
520		847
521	MODULE = IO::AIO PACKAGE = IO::AIO	848	MODULE = IO::AIO PACKAGE = IO::AIO
522		849
523	PROTOTYPES: ENABLE	850	PROTOTYPES: ENABLE
524		851
…		…
526	{	853	{
527	static const struct {	854	static const struct {
528	const char *name;	855	const char *name;
529	IV iv;	856	IV iv;
530	} *civ, const_iv[] = {	857	} *civ, const_iv[] = {
531	# define const_iv(name, value) { # name, (IV) value },	858	# define const_niv(name, value) { # name, (IV) value },
		859	# define const_iv(name) { # name, (IV) name },
532	# define const_eio(name) { # name, (IV) EIO_ ## name },	860	# define const_eio(name) { # name, (IV) EIO_ ## name },
533	const_iv (EXDEV , EXDEV)	861
		862	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		863
534	const_iv (ENOSYS , ENOSYS)	864	const_iv (ENOSYS)
		865	const_iv (EXDEV)
		866	const_iv (EBADR)
		867
535	const_iv (O_RDONLY, O_RDONLY)	868	const_iv (O_RDONLY)
536	const_iv (O_WRONLY, O_WRONLY)	869	const_iv (O_WRONLY)
		870	const_iv (O_RDWR)
537	const_iv (O_CREAT , O_CREAT)	871	const_iv (O_CREAT)
538	const_iv (O_TRUNC , O_TRUNC)	872	const_iv (O_TRUNC)
539	#ifndef _WIN32	873	const_iv (O_EXCL)
		874	const_iv (O_APPEND)
		875
		876	const_iv (O_ASYNC)
		877	const_iv (O_DIRECT)
		878	const_iv (O_NOATIME)
		879
		880	const_iv (O_CLOEXEC)
		881	const_iv (O_NOCTTY)
		882	const_iv (O_NOFOLLOW)
		883	const_iv (O_NONBLOCK)
		884	const_iv (O_EXEC)
		885	const_iv (O_SEARCH)
		886	const_iv (O_DIRECTORY)
		887	const_iv (O_DSYNC)
		888	const_iv (O_RSYNC)
		889	const_iv (O_SYNC)
		890	const_iv (O_TTY_INIT)
		891
540	const_iv (S_IFIFO , S_IFIFO)	892	const_iv (S_IFIFO)
541	#endif	893	const_iv (S_IFCHR)
		894	const_iv (S_IFBLK)
		895	const_iv (S_IFLNK)
		896	const_iv (S_IFREG)
		897	const_iv (S_IFDIR)
		898	const_iv (S_IFWHT)
		899	const_iv (S_IFSOCK)
		900	const_iv (S_IFMT)
		901
542	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	902	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
543	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	903	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
544	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	904	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
545	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	905	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
546	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	906	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
547	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	907	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		908
		909	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		910	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		911	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		912	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		913	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		914
		915	const_iv (ST_RDONLY)
		916	const_iv (ST_NOSUID)
		917	const_iv (ST_NODEV)
		918	const_iv (ST_NOEXEC)
		919	const_iv (ST_SYNCHRONOUS)
		920	const_iv (ST_MANDLOCK)
		921	const_iv (ST_WRITE)
		922	const_iv (ST_APPEND)
		923	const_iv (ST_IMMUTABLE)
		924	const_iv (ST_NOATIME)
		925	const_iv (ST_NODIRATIME)
		926	const_iv (ST_RELATIME)
		927
		928	const_iv (PROT_NONE)
		929	const_iv (PROT_EXEC)
		930	const_iv (PROT_READ)
		931	const_iv (PROT_WRITE)
		932
		933	/*const_iv (MAP_FIXED)*/
		934	const_iv (MAP_PRIVATE)
		935	const_iv (MAP_SHARED)
		936	const_iv (MAP_ANONYMOUS)
		937
		938	/* linuxish */
		939	const_iv (MAP_HUGETLB)
		940	const_iv (MAP_LOCKED)
		941	const_iv (MAP_NORESERVE)
		942	const_iv (MAP_POPULATE)
		943	const_iv (MAP_NONBLOCK)
		944
		945	const_iv (FIEMAP_FLAG_SYNC)
		946	const_iv (FIEMAP_FLAG_XATTR)
		947	const_iv (FIEMAP_FLAGS_COMPAT)
		948	const_iv (FIEMAP_EXTENT_LAST)
		949	const_iv (FIEMAP_EXTENT_UNKNOWN)
		950	const_iv (FIEMAP_EXTENT_DELALLOC)
		951	const_iv (FIEMAP_EXTENT_ENCODED)
		952	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		953	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		954	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		955	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		956	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		957	const_iv (FIEMAP_EXTENT_MERGED)
		958	const_iv (FIEMAP_EXTENT_SHARED)
		959
		960	const_eio (SEEK_SET)
		961	const_eio (SEEK_CUR)
		962	const_eio (SEEK_END)
		963
		964	const_eio (MCL_FUTURE)
		965	const_eio (MCL_CURRENT)
		966
		967	const_eio (MS_ASYNC)
		968	const_eio (MS_INVALIDATE)
		969	const_eio (MS_SYNC)
		970
		971	const_eio (MT_MODIFY)
548		972
549	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	973	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
550	const_eio (SYNC_FILE_RANGE_WRITE)	974	const_eio (SYNC_FILE_RANGE_WRITE)
551	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	975	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		976
		977	const_eio (FALLOC_FL_KEEP_SIZE)
552		978
553	const_eio (READDIR_DENTS)	979	const_eio (READDIR_DENTS)
554	const_eio (READDIR_DIRS_FIRST)	980	const_eio (READDIR_DIRS_FIRST)
555	const_eio (READDIR_STAT_ORDER)	981	const_eio (READDIR_STAT_ORDER)
556	const_eio (READDIR_FOUND_UNKNOWN)	982	const_eio (READDIR_FOUND_UNKNOWN)
…		…
564	const_eio (DT_LNK)	990	const_eio (DT_LNK)
565	const_eio (DT_SOCK)	991	const_eio (DT_SOCK)
566	const_eio (DT_WHT)	992	const_eio (DT_WHT)
567	};	993	};
568		994
569	stash = gv_stashpv ("IO::AIO", 1);	995	aio_stash = gv_stashpv ("IO::AIO" , 1);
		996	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		997	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		998	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
570		999
571	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1000	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
572	newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));	1001	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
573		1002
574	create_respipe ();	1003	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
575		1004
576	if (eio_init (want_poll, done_poll) < 0)	1005	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	}	1006	}
582		1007
583	void	1008	void
		1009	reinit ()
		1010	PROTOTYPE:
		1011
		1012	void
584	max_poll_reqs (int nreqs)	1013	max_poll_reqs (unsigned int nreqs)
585	PROTOTYPE: $	1014	PROTOTYPE: $
586	CODE:	1015	CODE:
587	eio_set_max_poll_reqs (nreqs);	1016	eio_set_max_poll_reqs (nreqs);
588		1017
589	void	1018	void
…		…
591	PROTOTYPE: $	1020	PROTOTYPE: $
592	CODE:	1021	CODE:
593	eio_set_max_poll_time (nseconds);	1022	eio_set_max_poll_time (nseconds);
594		1023
595	void	1024	void
596	min_parallel (int nthreads)	1025	min_parallel (unsigned int nthreads)
597	PROTOTYPE: $	1026	PROTOTYPE: $
598	CODE:	1027	CODE:
599	eio_set_min_parallel (nthreads);	1028	eio_set_min_parallel (nthreads);
600		1029
601	void	1030	void
602	max_parallel (int nthreads)	1031	max_parallel (unsigned int nthreads)
603	PROTOTYPE: $	1032	PROTOTYPE: $
604	CODE:	1033	CODE:
605	eio_set_max_parallel (nthreads);	1034	eio_set_max_parallel (nthreads);
606		1035
607	void	1036	void
608	max_idle (int nthreads)	1037	max_idle (unsigned int nthreads)
609	PROTOTYPE: $	1038	PROTOTYPE: $
610	CODE:	1039	CODE:
611	eio_set_max_idle (nthreads);	1040	eio_set_max_idle (nthreads);
612		1041
613	void	1042	void
		1043	idle_timeout (unsigned int seconds)
		1044	PROTOTYPE: $
		1045	CODE:
		1046	eio_set_idle_timeout (seconds);
		1047
		1048	void
614	max_outstanding (int maxreqs)	1049	max_outstanding (unsigned int maxreqs)
615	PROTOTYPE: $	1050	PROTOTYPE: $
616	CODE:	1051	CODE:
617	max_outstanding = maxreqs;	1052	max_outstanding = maxreqs;
618		1053
619	void	1054	void
		1055	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1056	PPCODE:
		1057	{
		1058	dREQ;
		1059
		1060	req->type = EIO_WD_OPEN;
		1061	req_set_path1 (req, pathname);
		1062
		1063	REQ_SEND;
		1064	}
		1065
		1066	void
620	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1067	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
621	PROTOTYPE: $$$;$
622	PPCODE:	1068	PPCODE:
623	{	1069	{
624	dREQ;	1070	dREQ;
625		1071
626	req->type = EIO_OPEN;	1072	req->type = EIO_OPEN;
627	req->sv1 = newSVsv (pathname);	1073	req_set_path1 (req, pathname);
628	req->ptr1 = SvPVbyte_nolen (req->sv1);
629	req->int1 = flags;	1074	req->int1 = flags;
630	req->int2 = mode;	1075	req->int2 = mode;
631		1076
632	REQ_SEND;	1077	REQ_SEND;
633	}	1078	}
634		1079
635	void	1080	void
636	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1081	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
637	PROTOTYPE: $;$
638	ALIAS:	1082	ALIAS:
639	aio_fsync = EIO_FSYNC	1083	aio_fsync = EIO_FSYNC
640	aio_fdatasync = EIO_FDATASYNC	1084	aio_fdatasync = EIO_FDATASYNC
		1085	aio_syncfs = EIO_SYNCFS
641	PPCODE:	1086	PPCODE:
642	{	1087	{
643	int fd = s_fileno_croak (fh, 0);	1088	int fd = s_fileno_croak (fh, 0);
644	dREQ;	1089	dREQ;
645		1090
646	req->type = ix;	1091	req->type = ix;
647	req->sv1 = newSVsv (fh);	1092	req->sv1 = newSVsv (fh);
648	req->int1 = fd;	1093	req->int1 = fd;
649		1094
650	REQ_SEND (req);	1095	REQ_SEND;
651	}	1096	}
652		1097
653	void	1098	void
654	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1099	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
655	PROTOTYPE: $$$$;$
656	PPCODE:	1100	PPCODE:
657	{	1101	{
658	int fd = s_fileno_croak (fh, 0);	1102	int fd = s_fileno_croak (fh, 0);
659	dREQ;	1103	dREQ;
660		1104
…		…
663	req->int1 = fd;	1107	req->int1 = fd;
664	req->offs = offset;	1108	req->offs = offset;
665	req->size = nbytes;	1109	req->size = nbytes;
666	req->int2 = flags;	1110	req->int2 = flags;
667		1111
668	REQ_SEND (req);	1112	REQ_SEND;
669	}	1113	}
670		1114
671	void	1115	void
672	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1116	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
673	PROTOTYPE: $;$
674	PPCODE:	1117	PPCODE:
675	{	1118	{
676	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
677	int fd = s_fileno_croak (fh, 0);	1119	int fd = s_fileno_croak (fh, 0);
678	dREQ;	1120	dREQ;
679		1121
680	if (close_pipe < 0)	1122	req->type = EIO_FALLOCATE;
		1123	req->sv1 = newSVsv (fh);
		1124	req->int1 = fd;
		1125	req->int2 = mode;
		1126	req->offs = offset;
		1127	req->size = len;
		1128
		1129	REQ_SEND;
		1130	}
		1131
		1132	void
		1133	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1134	PPCODE:
		1135	{
		1136	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1137	int fd = s_fileno_croak (fh, 0);
		1138	dREQ;
		1139
		1140	if (expect_false (close_fd < 0))
681	{	1141	{
682	int pipefd [2];	1142	int pipefd [2];
683		1143
		1144	if (
		1145	#ifdef _WIN32
		1146	_pipe (pipefd, 1, _O_BINARY) < 0
		1147	#else
684	if (pipe (pipefd) < 0	1148	pipe (pipefd) < 0
685	|| close (pipefd [1]) < 0
686	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1149	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1150	#endif
		1151	|| close (pipefd [1]) < 0
		1152	)
687	abort (); /*D*/	1153	abort (); /*D*/
688		1154
689	close_pipe = pipefd [0];	1155	close_fd = pipefd [0];
690	}	1156	}
691		1157
692	req->type = EIO_DUP2;	1158	req->type = EIO_DUP2;
693	req->int1 = close_pipe;	1159	req->int1 = close_fd;
694	req->sv2 = newSVsv (fh);	1160	req->sv2 = newSVsv (fh);
695	req->int2 = fd;	1161	req->int2 = fd;
696		1162
697	REQ_SEND (req);	1163	REQ_SEND;
		1164	}
		1165
		1166	void
		1167	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1168	PPCODE:
		1169	{
		1170	int fd = s_fileno_croak (fh, 0);
		1171	dREQ;
		1172
		1173	req->type = EIO_SEEK;
		1174	req->sv1 = newSVsv (fh);
		1175	req->int1 = fd;
		1176	req->offs = SvVAL64 (offset);
		1177	req->int2 = whence;
		1178
		1179	REQ_SEND;
698	}	1180	}
699		1181
700	void	1182	void
701	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1183	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
702	ALIAS:	1184	ALIAS:
703	aio_read = EIO_READ	1185	aio_read = EIO_READ
704	aio_write = EIO_WRITE	1186	aio_write = EIO_WRITE
705	PROTOTYPE: $$$$$;$
706	PPCODE:	1187	PPCODE:
707	{	1188	{
708	STRLEN svlen;	1189	STRLEN svlen;
709	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1190	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
710	char *svptr = SvPVbyte (data, svlen);	1191	char *svptr = SvPVbyte (data, svlen);
…		…
750	REQ_SEND;	1231	REQ_SEND;
751	}	1232	}
752	}	1233	}
753		1234
754	void	1235	void
755	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1236	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
756	PROTOTYPE: $$;$	1237	ALIAS:
		1238	aio_readlink = EIO_READLINK
		1239	aio_realpath = EIO_REALPATH
757	PPCODE:	1240	PPCODE:
758	{	1241	{
759	SV *data;
760	dREQ;	1242	dREQ;
761		1243
762	req->type = EIO_READLINK;	1244	req->type = ix;
763	req->sv1 = newSVsv (path);	1245	req_set_path1 (req, pathname);
764	req->ptr1 = SvPVbyte_nolen (req->sv1);
765		1246
766	REQ_SEND;	1247	REQ_SEND;
767	}	1248	}
768		1249
769	void	1250	void
770	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1251	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
771	PROTOTYPE: $$$$;$
772	PPCODE:	1252	PPCODE:
773	{	1253	{
774	int ifd = s_fileno_croak (in_fh , 0);	1254	int ifd = s_fileno_croak (in_fh , 0);
775	int ofd = s_fileno_croak (out_fh, 1);	1255	int ofd = s_fileno_croak (out_fh, 1);
776	dREQ;	1256	dREQ;
…		…
786	REQ_SEND;	1266	REQ_SEND;
787	}	1267	}
788		1268
789	void	1269	void
790	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1270	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
791	PROTOTYPE: $$$;$
792	PPCODE:	1271	PPCODE:
793	{	1272	{
794	int fd = s_fileno_croak (fh, 0);	1273	int fd = s_fileno_croak (fh, 0);
795	dREQ;	1274	dREQ;
796		1275
…		…
804	}	1283	}
805		1284
806	void	1285	void
807	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1286	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
808	ALIAS:	1287	ALIAS:
809	aio_stat = EIO_STAT	1288	aio_stat = EIO_STAT
810	aio_lstat = EIO_LSTAT	1289	aio_lstat = EIO_LSTAT
		1290	aio_statvfs = EIO_STATVFS
811	PPCODE:	1291	PPCODE:
812	{	1292	{
813	dREQ;	1293	dREQ;
814		1294
815	req->sv1 = newSVsv (fh_or_path);	1295	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		1296
828	REQ_SEND;	1297	REQ_SEND;
829	}	1298	}
		1299
		1300	UV
		1301	major (UV dev)
		1302	ALIAS:
		1303	minor = 1
		1304	CODE:
		1305	RETVAL = ix ? major (dev) : minor (dev);
		1306	OUTPUT:
		1307	RETVAL
		1308
		1309	UV
		1310	makedev (UV maj, UV min)
		1311	CODE:
		1312	RETVAL = makedev (maj, min);
		1313	OUTPUT:
		1314	RETVAL
830		1315
831	void	1316	void
832	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1317	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
833	PPCODE:	1318	PPCODE:
834	{	1319	{
835	dREQ;	1320	dREQ;
836		1321
837	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1322	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
838	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1323	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
839	req->sv1 = newSVsv (fh_or_path);	1324	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		1325
852	REQ_SEND;	1326	REQ_SEND;
853	}	1327	}
854		1328
855	void	1329	void
856	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1330	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
857	PPCODE:	1331	PPCODE:
858	{	1332	{
859	dREQ;	1333	dREQ;
860		1334
861	req->sv1 = newSVsv (fh_or_path);
862	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1335	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
863		1336	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		1337
875	REQ_SEND;	1338	REQ_SEND;
876	}	1339	}
877		1340
878	void	1341	void
879	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1342	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
880	ALIAS:
881	aio_chmod = EIO_CHMOD
882	aio_mkdir = EIO_MKDIR
883	PPCODE:	1343	PPCODE:
884	{	1344	{
885	dREQ;	1345	dREQ;
886		1346
887	req->int2 = mode;	1347	req->int2 = mode;
888	req->sv1 = newSVsv (fh_or_path);	1348	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		1349
901	REQ_SEND;	1350	REQ_SEND;
902	}	1351	}
903		1352
904	void	1353	void
…		…
907	{	1356	{
908	dREQ;	1357	dREQ;
909		1358
910	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1359	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
911	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1360	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
912	req->sv1 = newSVsv (fh_or_path);	1361	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		1362
925	REQ_SEND;	1363	REQ_SEND;
926	}	1364	}
927		1365
928	void	1366	void
…		…
930	PPCODE:	1368	PPCODE:
931	{	1369	{
932	dREQ;	1370	dREQ;
933		1371
934	req->type = EIO_READDIR;	1372	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;	1373	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
938		1374
939	if (flags & EIO_READDIR_DENTS)	1375	if (flags & EIO_READDIR_DENTS)
940	req->int1 |= EIO_READDIR_CUSTOM2;	1376	req->int1 |= EIO_READDIR_CUSTOM2;
941		1377
		1378	req_set_path1 (req, pathname);
		1379
942	REQ_SEND;	1380	REQ_SEND;
		1381	}
		1382
		1383	void
		1384	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1385	PPCODE:
		1386	{
		1387	dREQ;
		1388
		1389	req->type = EIO_MKDIR;
		1390	req->int2 = mode;
		1391	req_set_path1 (req, pathname);
		1392
		1393	REQ_SEND;
943	}	1394	}
944		1395
945	void	1396	void
946	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1397	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
947	ALIAS:	1398	ALIAS:
…		…
951	PPCODE:	1402	PPCODE:
952	{	1403	{
953	dREQ;	1404	dREQ;
954		1405
955	req->type = ix;	1406	req->type = ix;
956	req->sv1 = newSVsv (pathname);	1407	req_set_path1 (req, pathname);
957	req->ptr1 = SvPVbyte_nolen (req->sv1);
958		1408
959	REQ_SEND;	1409	REQ_SEND;
960	}	1410	}
961		1411
962	void	1412	void
…		…
965	aio_link = EIO_LINK	1415	aio_link = EIO_LINK
966	aio_symlink = EIO_SYMLINK	1416	aio_symlink = EIO_SYMLINK
967	aio_rename = EIO_RENAME	1417	aio_rename = EIO_RENAME
968	PPCODE:	1418	PPCODE:
969	{	1419	{
		1420	eio_wd wd2 = 0;
970	dREQ;	1421	dREQ;
971		1422
972	req->type = ix;	1423	req->type = ix;
973	req->sv1 = newSVsv (oldpath);	1424	req_set_path1 (req, oldpath);
974	req->ptr1 = SvPVbyte_nolen (req->sv1);	1425	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
975	req->sv2 = newSVsv (newpath);	1426	req->int3 = (long)wd2;
976	req->ptr2 = SvPVbyte_nolen (req->sv2);
977		1427
978	REQ_SEND;	1428	REQ_SEND;
979	}	1429	}
980		1430
981	void	1431	void
…		…
983	PPCODE:	1433	PPCODE:
984	{	1434	{
985	dREQ;	1435	dREQ;
986		1436
987	req->type = EIO_MKNOD;	1437	req->type = EIO_MKNOD;
988	req->sv1 = newSVsv (pathname);
989	req->ptr1 = SvPVbyte_nolen (req->sv1);
990	req->int2 = (mode_t)mode;	1438	req->int2 = (mode_t)mode;
991	req->offs = dev;	1439	req->offs = dev;
		1440	req_set_path1 (req, pathname);
992		1441
993	REQ_SEND;	1442	REQ_SEND;
994	}	1443	}
995		1444
996	void	1445	void
		1446	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1447	ALIAS:
		1448	aio_mtouch = EIO_MTOUCH
		1449	aio_msync = EIO_MSYNC
		1450	PPCODE:
		1451	{
		1452	STRLEN svlen;
		1453	char *svptr = SvPVbyte (data, svlen);
		1454	UV len = SvUV (length);
		1455
		1456	if (offset < 0)
		1457	offset += svlen;
		1458
		1459	if (offset < 0 || offset > svlen)
		1460	croak ("offset outside of scalar");
		1461
		1462	if (!SvOK (length) || len + offset > svlen)
		1463	len = svlen - offset;
		1464
		1465	{
		1466	dREQ;
		1467
		1468	req->type = ix;
		1469	req->sv2 = SvREFCNT_inc (data);
		1470	req->ptr2 = (char *)svptr + offset;
		1471	req->size = len;
		1472	req->int1 = flags;
		1473
		1474	REQ_SEND;
		1475	}
		1476	}
		1477
		1478	void
		1479	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1480	PPCODE:
		1481	{
		1482	STRLEN svlen;
		1483	char *svptr = SvPVbyte (data, svlen);
		1484	UV len = SvUV (length);
		1485
		1486	if (offset < 0)
		1487	offset += svlen;
		1488
		1489	if (offset < 0 || offset > svlen)
		1490	croak ("offset outside of scalar");
		1491
		1492	if (!SvOK (length) || len + offset > svlen)
		1493	len = svlen - offset;
		1494
		1495	{
		1496	dREQ;
		1497
		1498	req->type = EIO_MLOCK;
		1499	req->sv2 = SvREFCNT_inc (data);
		1500	req->ptr2 = (char *)svptr + offset;
		1501	req->size = len;
		1502
		1503	REQ_SEND;
		1504	}
		1505	}
		1506
		1507	void
		1508	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1509	PPCODE:
		1510	{
		1511	dREQ;
		1512
		1513	req->type = EIO_MLOCKALL;
		1514	req->int1 = flags;
		1515
		1516	REQ_SEND;
		1517	}
		1518
		1519	void
		1520	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1521	PPCODE:
		1522	{
		1523	int fd = s_fileno_croak (fh, 0);
		1524	dREQ;
		1525
		1526	req->type = EIO_CUSTOM;
		1527	req->sv1 = newSVsv (fh);
		1528	req->int1 = fd;
		1529
		1530	req->feed = fiemap;
		1531	#if HAVE_FIEMAP
		1532	/* keep our fingers crossed that the next two types are 64 bit */
		1533	req->offs = start;
		1534	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1535	req->int2 = flags;
		1536	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1537	#endif
		1538
		1539	REQ_SEND;
		1540	}
		1541
		1542	void
997	aio_busy (double delay, SV *callback=&PL_sv_undef)	1543	aio_busy (double delay, SV *callback=&PL_sv_undef)
998	PPCODE:	1544	PPCODE:
999	{	1545	{
1000	dREQ;	1546	dREQ;
1001		1547
…		…
1005	REQ_SEND;	1551	REQ_SEND;
1006	}	1552	}
1007		1553
1008	void	1554	void
1009	aio_group (SV *callback=&PL_sv_undef)	1555	aio_group (SV *callback=&PL_sv_undef)
1010	PROTOTYPE: ;$
1011	PPCODE:	1556	PPCODE:
1012	{	1557	{
1013	dREQ;	1558	dREQ;
1014		1559
1015	req->type = EIO_GROUP;	1560	req->type = EIO_GROUP;
1016		1561
1017	req_submit (req);	1562	req_submit (req);
1018	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1563	XPUSHs (req_sv (req, aio_grp_stash));
1019	}	1564	}
1020		1565
1021	void	1566	void
1022	aio_nop (SV *callback=&PL_sv_undef)	1567	aio_nop (SV *callback=&PL_sv_undef)
1023	ALIAS:	1568	ALIAS:
…		…
1032	REQ_SEND;	1577	REQ_SEND;
1033	}	1578	}
1034		1579
1035	int	1580	int
1036	aioreq_pri (int pri = 0)	1581	aioreq_pri (int pri = 0)
1037	PROTOTYPE: ;$
1038	CODE:	1582	CODE:
1039	RETVAL = next_pri;	1583	RETVAL = next_pri;
1040	if (items > 0)	1584	if (items > 0)
1041	{	1585	{
1042	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1586	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1054	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1598	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1055	next_pri = nice;	1599	next_pri = nice;
1056		1600
1057	void	1601	void
1058	flush ()	1602	flush ()
1059	PROTOTYPE:
1060	CODE:	1603	CODE:
1061	while (eio_nreqs ())	1604	while (eio_nreqs ())
1062	{	1605	{
1063	poll_wait ();	1606	poll_wait ();
1064	poll_cb ();	1607	poll_cb ();
1065	}	1608	}
1066		1609
1067	int	1610	int
1068	poll()	1611	poll ()
1069	PROTOTYPE:
1070	CODE:	1612	CODE:
1071	poll_wait ();	1613	poll_wait ();
1072	RETVAL = poll_cb ();	1614	RETVAL = poll_cb ();
1073	OUTPUT:	1615	OUTPUT:
1074	RETVAL	1616	RETVAL
1075		1617
1076	int	1618	int
1077	poll_fileno()	1619	poll_fileno ()
1078	PROTOTYPE:
1079	CODE:	1620	CODE:
1080	RETVAL = s_epipe_fd (&respipe);	1621	RETVAL = s_epipe_fd (&respipe);
1081	OUTPUT:	1622	OUTPUT:
1082	RETVAL	1623	RETVAL
1083		1624
1084	int	1625	int
1085	poll_cb(...)	1626	poll_cb (...)
1086	PROTOTYPE:	1627	PROTOTYPE:
1087	CODE:	1628	CODE:
1088	RETVAL = poll_cb ();	1629	RETVAL = poll_cb ();
1089	OUTPUT:	1630	OUTPUT:
1090	RETVAL	1631	RETVAL
1091		1632
1092	void	1633	void
1093	poll_wait()	1634	poll_wait ()
1094	PROTOTYPE:
1095	CODE:	1635	CODE:
1096	poll_wait ();	1636	poll_wait ();
1097		1637
1098	int	1638	int
1099	nreqs()	1639	nreqs ()
1100	PROTOTYPE:
1101	CODE:	1640	CODE:
1102	RETVAL = eio_nreqs ();	1641	RETVAL = eio_nreqs ();
1103	OUTPUT:	1642	OUTPUT:
1104	RETVAL	1643	RETVAL
1105		1644
1106	int	1645	int
1107	nready()	1646	nready ()
1108	PROTOTYPE:
1109	CODE:	1647	CODE:
1110	RETVAL = eio_nready ();	1648	RETVAL = eio_nready ();
1111	OUTPUT:	1649	OUTPUT:
1112	RETVAL	1650	RETVAL
1113		1651
1114	int	1652	int
1115	npending()	1653	npending ()
1116	PROTOTYPE:
1117	CODE:	1654	CODE:
1118	RETVAL = eio_npending ();	1655	RETVAL = eio_npending ();
1119	OUTPUT:	1656	OUTPUT:
1120	RETVAL	1657	RETVAL
1121		1658
1122	int	1659	int
1123	nthreads()	1660	nthreads ()
1124	PROTOTYPE:
1125	CODE:	1661	CODE:
1126	RETVAL = eio_nthreads ();	1662	RETVAL = eio_nthreads ();
1127	OUTPUT:	1663	OUTPUT:
1128	RETVAL	1664	RETVAL
1129		1665
1130	int	1666	int
1131	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1667	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1132	PROTOTYPE: $$$$
1133	CODE:	1668	CODE:
1134	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1135	RETVAL = posix_fadvise (fh, offset, length, advice);	1669	RETVAL = posix_fadvise (fh, offset, length, advice);
1136	#else
1137	RETVAL = errno = ENOSYS;
1138	#endif
1139	OUTPUT:	1670	OUTPUT:
1140	RETVAL	1671	RETVAL
1141		1672
1142	ssize_t	1673	IV
1143	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1674	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1144	PROTOTYPE: $$$$
1145	CODE:	1675	CODE:
1146	eio_sendfile_sync (ofh, ifh, offset, count);	1676	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1677	OUTPUT:
		1678	RETVAL
		1679
		1680	void
		1681	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1682	PPCODE:
		1683	sv_unmagic (scalar, MMAP_MAGIC);
		1684	{
		1685	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1686	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1687	if (addr == (void *)-1)
		1688	XSRETURN_NO;
		1689
		1690	sv_force_normal (scalar);
		1691
		1692	/* we store the length in mg_obj, as namlen is I32 :/ */
		1693	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1694	->mg_obj = (SV *)length;
		1695
		1696	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1697
		1698	if (!(prot & PROT_WRITE))
		1699	SvREADONLY_on (scalar);
		1700
		1701	if (SvLEN (scalar))
		1702	Safefree (SvPVX (scalar));
		1703
		1704	SvPVX (scalar) = (char *)addr;
		1705	SvCUR_set (scalar, length);
		1706	SvLEN_set (scalar, 0);
		1707	SvPOK_only (scalar);
		1708
		1709	XSRETURN_YES;
		1710	}
		1711
		1712	void
		1713	munmap (SV *scalar)
		1714	CODE:
		1715	sv_unmagic (scalar, MMAP_MAGIC);
		1716
		1717	int
		1718	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1719	ALIAS:
		1720	mprotect = 1
		1721	CODE:
		1722	{
		1723	STRLEN svlen;
		1724	void *addr = SvPVbyte (scalar, svlen);
		1725	size_t len = SvUV (length);
		1726
		1727	if (offset < 0)
		1728	offset += svlen;
		1729
		1730	if (offset < 0 || offset > svlen)
		1731	croak ("offset outside of scalar");
		1732
		1733	if (!SvOK (length) || len + offset > svlen)
		1734	len = svlen - offset;
		1735
		1736	addr = (void *)(((intptr_t)addr) + offset);
		1737	eio_page_align (&addr, &len);
		1738
		1739	switch (ix)
		1740	{
		1741	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1742	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1743	}
		1744	}
		1745	OUTPUT:
		1746	RETVAL
		1747
		1748	int
		1749	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1750	CODE:
		1751	{
		1752	STRLEN svlen;
		1753	void *addr = SvPVbyte (scalar, svlen);
		1754	size_t len = SvUV (length);
		1755
		1756	if (offset < 0)
		1757	offset += svlen;
		1758
		1759	if (offset < 0 || offset > svlen)
		1760	croak ("offset outside of scalar");
		1761
		1762	if (!SvOK (length) || len + offset > svlen)
		1763	len = svlen - offset;
		1764
		1765	addr = (void *)(((intptr_t)addr) + offset);
		1766	eio_page_align (&addr, &len);
		1767	#if _POSIX_MEMLOCK_RANGE
		1768	RETVAL = munlock (addr, len);
		1769	#else
		1770	RETVAL = ((errno = ENOSYS), -1);
		1771	#endif
		1772	}
		1773	OUTPUT:
		1774	RETVAL
		1775
		1776	int
		1777	munlockall ()
		1778	CODE:
		1779	#if _POSIX_MEMLOCK
		1780	munlockall ();
		1781	#else
		1782	RETVAL = -1;
		1783	errno = ENOSYS;
		1784	#endif
		1785	OUTPUT:
		1786	RETVAL
1147		1787
1148	void _on_next_submit (SV *cb)	1788	void _on_next_submit (SV *cb)
1149	CODE:	1789	CODE:
1150	SvREFCNT_dec (on_next_submit);	1790	SvREFCNT_dec (on_next_submit);
1151	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1791	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1152		1792
1153	PROTOTYPES: DISABLE	1793	PROTOTYPES: DISABLE
1154		1794
		1795	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1796
		1797	BOOT:
		1798	{
		1799	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1800	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1801	}
		1802
		1803	void
		1804	DESTROY (SV *self)
		1805	CODE:
		1806	{
		1807	aio_wd wd = SvAIO_WD (self);
		1808	#if HAVE_AT
		1809	{
		1810	SV *callback = &PL_sv_undef;
		1811	dREQ; /* clobbers next_pri :/ */
		1812	next_pri = req->pri; /* restore next_pri */
		1813	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1814	req->type = EIO_WD_CLOSE;
		1815	req->wd = wd;
		1816	REQ_SEND;
		1817	}
		1818	#else
		1819	eio_wd_close_sync (wd);
		1820	#endif
		1821	}
		1822
1155	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1823	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1156		1824
1157	void	1825	void
1158	cancel (aio_req_ornot req)	1826	cancel (aio_req_ornot req)
1159	CODE:	1827	CODE:

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