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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.160 by root, Thu Jan 7 18:25:51 2010 UTC vs.
Revision 1.214 by root, Mon May 28 17:00:19 2012 UTC

…		…
11	#include <stddef.h>	11	#include <stddef.h>
12	#include <stdlib.h>	12	#include <stdlib.h>
13	#include <errno.h>	13	#include <errno.h>
14	#include <sys/types.h>	14	#include <sys/types.h>
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <sys/statvfs.h>
17	#include <limits.h>	16	#include <limits.h>
18	#include <fcntl.h>	17	#include <fcntl.h>
19	#include <sched.h>	18	#include <sched.h>
20		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
21	/* perl namespace pollution */	33	/* perl namespace pollution */
22	#undef VERSION	34	#undef VERSION
23
24	#ifdef _WIN32
25
26	# define EIO_STRUCT_DIRENT Direntry_t
27	# undef malloc
28	# undef free
29
30	// perl overrides all those nice win32 functions
31	# undef open
32	# undef read
33	# undef write
34	# undef send
35	# undef recv
36	# undef stat
37	# undef fstat
38	# define lstat stat
39	# undef truncate
40	# undef ftruncate
41	# undef open
42	# undef close
43	# undef unlink
44	# undef rmdir
45	# undef rename
46	# undef lseek
47
48	# define chown(a,b,c) (errno = ENOSYS, -1)
49	# define fchown(a,b,c) (errno = ENOSYS, -1)
50	# define fchmod(a,b) (errno = ENOSYS, -1)
51	# define symlink(a,b) (errno = ENOSYS, -1)
52	# define readlink(a,b,c) (errno = ENOSYS, -1)
53	# define mknod(a,b,c) (errno = ENOSYS, -1)
54	# define truncate(a,b) (errno = ENOSYS, -1)
55	# define ftruncate(fd,o) chsize ((fd), (o))
56	# define fsync(fd) _commit (fd)
57	# define opendir(fd) (errno = ENOSYS, 0)
58	# define readdir(fd) (errno = ENOSYS, -1)
59	# define closedir(fd) (errno = ENOSYS, -1)
60	# define mkdir(a,b) mkdir (a)
61
62	#else
63
64	# include <sys/time.h>
65	# include <sys/select.h>
66	# include <unistd.h>
67	# include <utime.h>
68	# include <signal.h>
69	# define EIO_STRUCT_DIRENT struct dirent
70
71	#endif
72		35
73	/* perl stupidly overrides readdir and maybe others */	36	/* perl stupidly overrides readdir and maybe others */
74	/* with thread-unsafe versions, imagine that :( */	37	/* with thread-unsafe versions, imagine that :( */
75	#undef readdir	38	#undef readdir
76	#undef opendir	39	#undef opendir
77	#undef closedir	40	#undef closedir
78		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
79	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STATI64
80		78
81	/* use NV for 32 bit perls as it allows larger offsets */
82	#if IVSIZE >= 8
83	# define VAL64 IV
84	# define SvVAL64 SvIV
85	# define newSVval64 newSViv
86	#else	79	#else
87	# define VAL64 NV	80
88	# define SvVAL64 SvNV	81	#include <sys/time.h>
89	# 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
90	#endif	89	#endif
91		90
92	/*****************************************************************************/	91	/*****************************************************************************/
93		92
94	#if __GNUC__ >= 3	93	#if __GNUC__ >= 3
…		…
104		103
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	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
110		109
111	#define EIO_REQ_MEMBERS \	110	#define EIO_REQ_MEMBERS \
112	SV *callback; \	111	SV *callback; \
113	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
		113	SV *sv3, *sv4; \
114	STRLEN stroffset; \	114	STRLEN stroffset; \
115	SV *self;	115	SV *self;
116		116
117	#define EIO_NO_WRAPPERS 1	117	#define EIO_NO_WRAPPERS 1
118		118
		119	#include "libeio/config.h"
119	#include "libeio/eio.h"	120	#include "libeio/eio.h"
120
121	#ifndef POSIX_FADV_NORMAL
122	# define POSIX_FADV_NORMAL 0
123	# define NO_FADVISE 1
124	#endif
125
126	#ifndef POSIX_FADV_SEQUENTIAL
127	# define POSIX_FADV_SEQUENTIAL 0
128	#endif
129
130	#ifndef POSIX_FADV_RANDOM
131	# define POSIX_FADV_RANDOM 0
132	#endif
133
134	#ifndef POSIX_FADV_NOREUSE
135	# define POSIX_FADV_NOREUSE 0
136	#endif
137
138	#ifndef POSIX_FADV_WILLNEED
139	# define POSIX_FADV_WILLNEED 0
140	#endif
141
142	#ifndef POSIX_FADV_DONTNEED
143	# define POSIX_FADV_DONTNEED 0
144	#endif
145
146	#ifndef ST_NODEV
147	# define ST_NODEV 0
148	#endif
149
150	#ifndef ST_NOEXEC
151	# define ST_NOEXEC 0
152	#endif
153
154	#ifndef ST_SYNCHRONOUS
155	# define ST_SYNCHRONOUS 0
156	#endif
157
158	#ifndef ST_MANDLOCK
159	# define ST_MANDLOCK 0
160	#endif
161
162	#ifndef ST_WRITE
163	# define ST_WRITE 0
164	#endif
165
166	#ifndef ST_APPEND
167	# define ST_APPEND 0
168	#endif
169
170	#ifndef ST_IMMUTABLE
171	# define ST_IMMUTABLE 0
172	#endif
173
174	#ifndef ST_NOATIME
175	# define ST_NOATIME 0
176	#endif
177
178	#ifndef ST_NODIRATIME
179	# define ST_NODIRATIME 0
180	#endif
181
182	#ifndef ST_RELATIME
183	# define ST_RELATIME 0
184	#endif
185		121
186	static int req_invoke (eio_req *req);	122	static int req_invoke (eio_req *req);
187	#define EIO_FINISH(req) req_invoke (req)	123	#define EIO_FINISH(req) req_invoke (req)
188	static void req_destroy (eio_req *grp);	124	static void req_destroy (eio_req *grp);
189	#define EIO_DESTROY(req) req_destroy (req)	125	#define EIO_DESTROY(req) req_destroy (req)
190		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
191	enum {	222	enum {
192	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	223	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
193	};	224	};
194		225
195	#include "libeio/eio.c"
196
197	typedef eio_req *aio_req;	226	typedef eio_req *aio_req;
198	typedef eio_req *aio_req_ornot;	227	typedef eio_req *aio_req_ornot;
		228	typedef eio_wd aio_wd;
199		229
200	static SV *on_next_submit;	230	static SV *on_next_submit;
201	static int next_pri = EIO_PRI_DEFAULT;	231	static int next_pri = EIO_PRI_DEFAULT;
202	static int max_outstanding;	232	static int max_outstanding;
203		233
204	static s_epipe respipe;	234	static s_epipe respipe;
205		235
206	static void req_destroy (aio_req req);	236	static void req_destroy (aio_req req);
207	static void req_cancel (aio_req req);	237	static void req_cancel (aio_req req);
208		238
209	static void want_poll (void)	239	static void
		240	want_poll (void)
210	{	241	{
211	/* write a dummy byte to the pipe so fh becomes ready */	242	/* write a dummy byte to the pipe so fh becomes ready */
212	s_epipe_signal (&respipe);	243	s_epipe_signal (&respipe);
213	}	244	}
214		245
215	static void done_poll (void)	246	static void
		247	done_poll (void)
216	{	248	{
217	/* read any signals sent by the worker threads */	249	/* read any signals sent by the worker threads */
218	s_epipe_drain (&respipe);	250	s_epipe_drain (&respipe);
219	}	251	}
220		252
221	/* must be called at most once */	253	/* must be called at most once */
		254	static SV *
222	static SV *req_sv (aio_req req, HV *stash)	255	req_sv (aio_req req, HV *stash)
223	{	256	{
224	if (!req->self)	257	if (!req->self)
225	{	258	{
226	req->self = (SV *)newHV ();	259	req->self = (SV *)newHV ();
227	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	260	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
228	}	261	}
229		262
230	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	263	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
231	}	264	}
232		265
233	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)
234	{	274	{
235	MAGIC *mg;	275	MAGIC *mg;
236		276
237	if (!SvROK (sv)	277	if (!SvROK (sv)
		278	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
238	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	279	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
239	&& SvSTASH (SvRV (sv)) != aio_req_stash	280	&& SvSTASH (SvRV (sv)) != aio_req_stash
240	&& !sv_derived_from (sv, "IO::AIO::REQ")))	281	&& !sv_derived_from (sv, "IO::AIO::REQ")))
241	croak ("object of class IO::AIO::REQ expected");	282	croak ("object of class IO::AIO::REQ expected");
242		283
243	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	284	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
244		285
245	return mg ? (aio_req)mg->mg_ptr : 0;	286	return mg ? (aio_req)mg->mg_ptr : 0;
246	}	287	}
247		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
248	static void aio_grp_feed (aio_req grp)	301	aio_grp_feed (aio_req grp)
249	{	302	{
250	if (grp->sv2 && SvOK (grp->sv2))	303	if (grp->sv2 && SvOK (grp->sv2))
251	{	304	{
252	dSP;	305	dSP;
253		306
…		…
261	FREETMPS;	314	FREETMPS;
262	LEAVE;	315	LEAVE;
263	}	316	}
264	}	317	}
265		318
		319	static void
266	static void req_submit (eio_req *req)	320	req_submit (eio_req *req)
267	{	321	{
268	eio_submit (req);	322	eio_submit (req);
269		323
270	if (expect_false (on_next_submit))	324	if (expect_false (on_next_submit))
271	{	325	{
…		…
278	PUTBACK;	332	PUTBACK;
279	call_sv (cb, G_DISCARD | G_EVAL);	333	call_sv (cb, G_DISCARD | G_EVAL);
280	}	334	}
281	}	335	}
282		336
		337	static int
283	static int req_invoke (eio_req *req)	338	req_invoke (eio_req *req)
284	{	339	{
285	dSP;
286
287	if (req->flags & FLAG_SV2_RO_OFF)	340	if (req->flags & FLAG_SV2_RO_OFF)
288	SvREADONLY_off (req->sv2);	341	SvREADONLY_off (req->sv2);
289		342
290	if (!EIO_CANCELLED (req) && req->callback)	343	if (!EIO_CANCELLED (req) && req->callback)
291	{	344	{
		345	dSP;
		346	static SV *sv_result_cache; /* caches the result integer SV */
		347	SV *sv_result;
		348
292	ENTER;	349	ENTER;
293	SAVETMPS;	350	SAVETMPS;
294	PUSHMARK (SP);	351	PUSHMARK (SP);
295	EXTEND (SP, 1);	352	EXTEND (SP, 1);
296		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
297	switch (req->type)	367	switch (req->type)
298	{	368	{
		369	case EIO_WD_OPEN:
		370	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		371	break;
		372
299	case EIO_READDIR:	373	case EIO_READDIR:
300	{	374	{
301	SV *rv = &PL_sv_undef;	375	SV *rv = &PL_sv_undef;
302		376
303	if (req->result >= 0)	377	if (req->result >= 0)
…		…
391	case EIO_STATVFS:	465	case EIO_STATVFS:
392	case EIO_FSTATVFS:	466	case EIO_FSTATVFS:
393	{	467	{
394	SV *rv = &PL_sv_undef;	468	SV *rv = &PL_sv_undef;
395		469
		470	#ifndef _WIN32
396	if (req->result >= 0)	471	if (req->result >= 0)
397	{	472	{
398	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	473	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
399	HV *hv = newHV ();	474	HV *hv = newHV ();
400		475
…		…
410	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	485	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
411	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	486	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
412	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	487	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
413	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	488	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
414	}	489	}
		490	#endif
415		491
416	PUSHs (rv);	492	PUSHs (rv);
417	}	493	}
418		494
419	break;	495	break;
…		…
435	case EIO_NOP:	511	case EIO_NOP:
436	case EIO_BUSY:	512	case EIO_BUSY:
437	break;	513	break;
438		514
439	case EIO_READLINK:	515	case EIO_READLINK:
		516	case EIO_REALPATH:
440	if (req->result > 0)	517	if (req->result > 0)
441	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	518	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
442	break;	519	break;
443		520
444	case EIO_STAT:	521	case EIO_STAT:
445	case EIO_LSTAT:	522	case EIO_LSTAT:
446	case EIO_FSTAT:	523	case EIO_FSTAT:
447	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	524	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		525
448	PL_laststatval = req->result;	526	if (!(PL_laststatval = req->result))
		527	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
449	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	528	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
450	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)));
451	break;	535	break;
452		536
453	case EIO_READ:	537	case EIO_READ:
454	{	538	{
455	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));
456	*SvEND (req->sv2) = 0;	540	*SvEND (req->sv2) = 0;
457	SvPOK_only (req->sv2);	541	SvPOK_only (req->sv2);
458	SvSETMAGIC (req->sv2);	542	SvSETMAGIC (req->sv2);
459	PUSHs (sv_2mortal (newSViv (req->result)));	543	PUSHs (sv_result);
460	}	544	}
461	break;	545	break;
462		546
463	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 */
464	if (req->result > 0)	588	if (req->result > 0)
465	req->result = 0;	589	SvIV_set (sv_result, 0);
466	/* FALLTHROUGH */	590	/* FALLTHROUGH */
467		591
468	default:	592	default:
469	PUSHs (sv_2mortal (newSViv (req->result)));	593	PUSHs (sv_result);
470	break;	594	break;
471	}	595	}
472		596
473	errno = req->errorno;	597	errno = req->errorno;
474		598
475	PUTBACK;	599	PUTBACK;
476	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	600	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
477	SPAGAIN;	601	SPAGAIN;
478		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
479	FREETMPS;	608	FREETMPS;
480	LEAVE;	609	LEAVE;
481		610
482	PUTBACK;	611	PUTBACK;
483	}	612	}
484		613
485	return !!SvTRUE (ERRSV);	614	return !!SvTRUE (ERRSV);
486	}	615	}
487		616
		617	static void
488	static void req_destroy (aio_req req)	618	req_destroy (aio_req req)
489	{	619	{
490	if (req->self)	620	if (req->self)
491	{	621	{
492	sv_unmagic (req->self, PERL_MAGIC_ext);	622	sv_unmagic (req->self, PERL_MAGIC_ext);
493	SvREFCNT_dec (req->self);	623	SvREFCNT_dec (req->self);
494	}	624	}
495		625
496	SvREFCNT_dec (req->sv1);	626	SvREFCNT_dec (req->sv1);
497	SvREFCNT_dec (req->sv2);	627	SvREFCNT_dec (req->sv2);
		628	SvREFCNT_dec (req->sv3);
		629	SvREFCNT_dec (req->sv4);
498	SvREFCNT_dec (req->callback);	630	SvREFCNT_dec (req->callback);
499		631
500	Safefree (req);	632	free (req);
501	}	633	}
502		634
		635	static void
503	static void req_cancel_subs (aio_req grp)	636	req_cancel_subs (aio_req grp)
504	{	637	{
505	aio_req sub;
506
507	if (grp->type != EIO_GROUP)	638	if (grp->type != EIO_GROUP)
508	return;	639	return;
509		640
510	SvREFCNT_dec (grp->sv2);	641	SvREFCNT_dec (grp->sv2);
511	grp->sv2 = 0;	642	grp->sv2 = 0;
512		643
513	eio_grp_cancel (grp);	644	eio_grp_cancel (grp);
514	}	645	}
515		646
516	static void	647	static void ecb_cold
517	create_respipe (void)	648	create_respipe (void)
518	{	649	{
519	if (s_epipe_renew (&respipe))	650	if (s_epipe_renew (&respipe))
520	croak ("IO::AIO: unable to initialize result pipe");	651	croak ("IO::AIO: unable to initialize result pipe");
521	}	652	}
522		653
523	static void poll_wait (void)	654	static void
		655	poll_wait (void)
524	{	656	{
525	while (eio_nreqs ())	657	while (eio_nreqs ())
526	{	658	{
527	int size;	659	int size;
528		660
…		…
537		669
538	s_epipe_wait (&respipe);	670	s_epipe_wait (&respipe);
539	}	671	}
540	}	672	}
541		673
542	static int poll_cb (void)	674	static int
		675	poll_cb (void)
543	{	676	{
544	for (;;)	677	for (;;)
545	{	678	{
546	int res = eio_poll ();	679	int res = eio_poll ();
547		680
…		…
553		686
554	poll_wait ();	687	poll_wait ();
555	}	688	}
556	}	689	}
557		690
558	static void atfork_child (void)	691	static void ecb_cold
		692	reinit (void)
559	{	693	{
560	create_respipe ();	694	create_respipe ();
		695
		696	if (eio_init (want_poll, done_poll) < 0)
		697	croak ("IO::AIO: unable to initialise eio library");
561	}	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	/*****************************************************************************/
562		744
563	static SV *	745	static SV *
564	get_cb (SV *cb_sv)	746	get_cb (SV *cb_sv)
565	{	747	{
566	SvGETMAGIC (cb_sv);	748	SvGETMAGIC (cb_sv);
567	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	749	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
568	}	750	}
569		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
570	#define dREQ \	772	#define dREQ \
571	SV *cb_cv; \	773	aio_req req = dreq (callback); \
572	aio_req req; \
573	int req_pri = next_pri; \
574	next_pri = EIO_PRI_DEFAULT; \
575	\
576	cb_cv = get_cb (callback); \
577	\
578	Newz (0, req, 1, eio_req); \
579	if (!req) \
580	croak ("out of memory during eio_req allocation"); \
581	\
582	req->callback = SvREFCNT_inc (cb_cv); \
583	req->pri = req_pri
584		774
585	#define REQ_SEND \	775	#define REQ_SEND \
586	PUTBACK; \	776	PUTBACK; \
587	req_submit (req); \	777	req_submit (req); \
588	SPAGAIN; \	778	SPAGAIN; \
589	\	779	\
590	if (GIMME_V != G_VOID) \	780	if (GIMME_V != G_VOID) \
591	XPUSHs (req_sv (req, aio_req_stash));	781	XPUSHs (req_sv (req, aio_req_stash));
592		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;
		848
593	MODULE = IO::AIO PACKAGE = IO::AIO	849	MODULE = IO::AIO PACKAGE = IO::AIO
594		850
595	PROTOTYPES: ENABLE	851	PROTOTYPES: ENABLE
596		852
597	BOOT:	853	BOOT:
598	{	854	{
599	static const struct {	855	static const struct {
600	const char *name;	856	const char *name;
601	IV iv;	857	IV iv;
602	} *civ, const_iv[] = {	858	} *civ, const_iv[] = {
603	# 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 },
604	# define const_eio(name) { # name, (IV) EIO_ ## name },	861	# define const_eio(name) { # name, (IV) EIO_ ## name },
605	const_iv (EXDEV , EXDEV)	862
		863	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		864
606	const_iv (ENOSYS , ENOSYS)	865	const_iv (ENOSYS)
		866	const_iv (EXDEV)
		867	const_iv (EBADR)
		868
607	const_iv (O_RDONLY, O_RDONLY)	869	const_iv (O_RDONLY)
608	const_iv (O_WRONLY, O_WRONLY)	870	const_iv (O_WRONLY)
		871	const_iv (O_RDWR)
609	const_iv (O_CREAT , O_CREAT)	872	const_iv (O_CREAT)
610	const_iv (O_TRUNC , O_TRUNC)	873	const_iv (O_TRUNC)
611	#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
612	const_iv (S_IFIFO , S_IFIFO)	893	const_iv (S_IFIFO)
613	#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
614	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	903	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
615	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	904	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
616	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	905	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
617	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	906	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
618	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	907	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
619	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	908	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
620		909
621	const_iv (ST_RDONLY , ST_RDONLY)	910	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
622	const_iv (ST_NOSUID , ST_NOSUID)	911	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
623	const_iv (ST_NODEV , ST_NODEV)	912	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
624	const_iv (ST_NOEXEC , ST_NOEXEC)	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)
625	const_iv (ST_SYNCHRONOUS , ST_SYNCHRONOUS)	920	const_iv (ST_SYNCHRONOUS)
626	const_iv (ST_MANDLOCK , ST_MANDLOCK)	921	const_iv (ST_MANDLOCK)
627	const_iv (ST_WRITE , ST_WRITE)	922	const_iv (ST_WRITE)
628	const_iv (ST_APPEND , ST_APPEND)	923	const_iv (ST_APPEND)
629	const_iv (ST_IMMUTABLE , ST_IMMUTABLE)	924	const_iv (ST_IMMUTABLE)
630	const_iv (ST_NOATIME , ST_NOATIME)	925	const_iv (ST_NOATIME)
631	const_iv (ST_NODIRATIME , ST_NODIRATIME)	926	const_iv (ST_NODIRATIME)
632	const_iv (ST_RELATIME , ST_RELATIME)	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)
633		976
634	const_eio (MS_ASYNC)	977	const_eio (MS_ASYNC)
635	const_eio (MS_INVALIDATE)	978	const_eio (MS_INVALIDATE)
636	const_eio (MS_SYNC)	979	const_eio (MS_SYNC)
637		980
638	const_eio (MT_MODIFY)	981	const_eio (MT_MODIFY)
639		982
640	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	983	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
641	const_eio (SYNC_FILE_RANGE_WRITE)	984	const_eio (SYNC_FILE_RANGE_WRITE)
642	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	985	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		986
		987	const_eio (FALLOC_FL_KEEP_SIZE)
643		988
644	const_eio (READDIR_DENTS)	989	const_eio (READDIR_DENTS)
645	const_eio (READDIR_DIRS_FIRST)	990	const_eio (READDIR_DIRS_FIRST)
646	const_eio (READDIR_STAT_ORDER)	991	const_eio (READDIR_STAT_ORDER)
647	const_eio (READDIR_FOUND_UNKNOWN)	992	const_eio (READDIR_FOUND_UNKNOWN)
…		…
658	};	1003	};
659		1004
660	aio_stash = gv_stashpv ("IO::AIO" , 1);	1005	aio_stash = gv_stashpv ("IO::AIO" , 1);
661	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1006	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
662	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1007	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1008	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
663		1009
664	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--)
665	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1011	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
666		1012
667	create_respipe ();	1013	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
668		1014
669	if (eio_init (want_poll, done_poll) < 0)	1015	reinit ();
670	croak ("IO::AIO: unable to initialise eio library");
671
672	/* atfork child called in fifo order, so before eio's handler */
673	X_THREAD_ATFORK (0, 0, atfork_child);
674	}	1016	}
675		1017
676	void	1018	void
		1019	reinit ()
		1020	PROTOTYPE:
		1021
		1022	void
677	max_poll_reqs (int nreqs)	1023	max_poll_reqs (unsigned int nreqs)
678	PROTOTYPE: $	1024	PROTOTYPE: $
679	CODE:	1025	CODE:
680	eio_set_max_poll_reqs (nreqs);	1026	eio_set_max_poll_reqs (nreqs);
681		1027
682	void	1028	void
…		…
684	PROTOTYPE: $	1030	PROTOTYPE: $
685	CODE:	1031	CODE:
686	eio_set_max_poll_time (nseconds);	1032	eio_set_max_poll_time (nseconds);
687		1033
688	void	1034	void
689	min_parallel (int nthreads)	1035	min_parallel (unsigned int nthreads)
690	PROTOTYPE: $	1036	PROTOTYPE: $
691	CODE:	1037	CODE:
692	eio_set_min_parallel (nthreads);	1038	eio_set_min_parallel (nthreads);
693		1039
694	void	1040	void
695	max_parallel (int nthreads)	1041	max_parallel (unsigned int nthreads)
696	PROTOTYPE: $	1042	PROTOTYPE: $
697	CODE:	1043	CODE:
698	eio_set_max_parallel (nthreads);	1044	eio_set_max_parallel (nthreads);
699		1045
700	void	1046	void
701	max_idle (int nthreads)	1047	max_idle (unsigned int nthreads)
702	PROTOTYPE: $	1048	PROTOTYPE: $
703	CODE:	1049	CODE:
704	eio_set_max_idle (nthreads);	1050	eio_set_max_idle (nthreads);
705		1051
706	void	1052	void
		1053	idle_timeout (unsigned int seconds)
		1054	PROTOTYPE: $
		1055	CODE:
		1056	eio_set_idle_timeout (seconds);
		1057
		1058	void
707	max_outstanding (int maxreqs)	1059	max_outstanding (unsigned int maxreqs)
708	PROTOTYPE: $	1060	PROTOTYPE: $
709	CODE:	1061	CODE:
710	max_outstanding = maxreqs;	1062	max_outstanding = maxreqs;
711		1063
712	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
713	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)
714	PROTOTYPE: $$$;$
715	PPCODE:	1078	PPCODE:
716	{	1079	{
717	dREQ;	1080	dREQ;
718		1081
719	req->type = EIO_OPEN;	1082	req->type = EIO_OPEN;
720	req->sv1 = newSVsv (pathname);	1083	req_set_path1 (req, pathname);
721	req->ptr1 = SvPVbyte_nolen (req->sv1);
722	req->int1 = flags;	1084	req->int1 = flags;
723	req->int2 = mode;	1085	req->int2 = mode;
724		1086
725	REQ_SEND;	1087	REQ_SEND;
726	}	1088	}
727		1089
728	void	1090	void
729	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1091	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
730	PROTOTYPE: $;$
731	ALIAS:	1092	ALIAS:
732	aio_fsync = EIO_FSYNC	1093	aio_fsync = EIO_FSYNC
733	aio_fdatasync = EIO_FDATASYNC	1094	aio_fdatasync = EIO_FDATASYNC
		1095	aio_syncfs = EIO_SYNCFS
734	PPCODE:	1096	PPCODE:
735	{	1097	{
736	int fd = s_fileno_croak (fh, 0);	1098	int fd = s_fileno_croak (fh, 0);
737	dREQ;	1099	dREQ;
738		1100
739	req->type = ix;	1101	req->type = ix;
740	req->sv1 = newSVsv (fh);	1102	req->sv1 = newSVsv (fh);
741	req->int1 = fd;	1103	req->int1 = fd;
742		1104
743	REQ_SEND (req);	1105	REQ_SEND;
744	}	1106	}
745		1107
746	void	1108	void
747	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1109	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
748	PROTOTYPE: $$$$;$
749	PPCODE:	1110	PPCODE:
750	{	1111	{
751	int fd = s_fileno_croak (fh, 0);	1112	int fd = s_fileno_croak (fh, 0);
752	dREQ;	1113	dREQ;
753		1114
…		…
756	req->int1 = fd;	1117	req->int1 = fd;
757	req->offs = offset;	1118	req->offs = offset;
758	req->size = nbytes;	1119	req->size = nbytes;
759	req->int2 = flags;	1120	req->int2 = flags;
760		1121
761	REQ_SEND (req);	1122	REQ_SEND;
762	}	1123	}
763		1124
764	void	1125	void
765	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)
766	PROTOTYPE: $;$
767	PPCODE:	1127	PPCODE:
768	{	1128	{
769	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
770	int fd = s_fileno_croak (fh, 0);	1129	int fd = s_fileno_croak (fh, 0);
771	dREQ;	1130	dREQ;
772		1131
773	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))
774	{	1151	{
775	int pipefd [2];	1152	int pipefd [2];
776		1153
		1154	if (
		1155	#ifdef _WIN32
		1156	_pipe (pipefd, 1, _O_BINARY) < 0
		1157	#else
777	if (pipe (pipefd) < 0	1158	pipe (pipefd) < 0
778	|| close (pipefd [1]) < 0
779	|| 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	)
780	abort (); /*D*/	1163	abort (); /*D*/
781		1164
782	close_pipe = pipefd [0];	1165	close_fd = pipefd [0];
783	}	1166	}
784		1167
785	req->type = EIO_DUP2;	1168	req->type = EIO_DUP2;
786	req->int1 = close_pipe;	1169	req->int1 = close_fd;
787	req->sv2 = newSVsv (fh);	1170	req->sv2 = newSVsv (fh);
788	req->int2 = fd;	1171	req->int2 = fd;
789		1172
790	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;
791	}	1190	}
792		1191
793	void	1192	void
794	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)
795	ALIAS:	1194	ALIAS:
796	aio_read = EIO_READ	1195	aio_read = EIO_READ
797	aio_write = EIO_WRITE	1196	aio_write = EIO_WRITE
798	PROTOTYPE: $$$$$;$
799	PPCODE:	1197	PPCODE:
800	{	1198	{
801	STRLEN svlen;	1199	STRLEN svlen;
802	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1200	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
803	char *svptr = SvPVbyte (data, svlen);	1201	char *svptr = SvPVbyte (data, svlen);
…		…
843	REQ_SEND;	1241	REQ_SEND;
844	}	1242	}
845	}	1243	}
846		1244
847	void	1245	void
848	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1246	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
849	PROTOTYPE: $$;$	1247	ALIAS:
		1248	aio_readlink = EIO_READLINK
		1249	aio_realpath = EIO_REALPATH
850	PPCODE:	1250	PPCODE:
851	{	1251	{
852	SV *data;
853	dREQ;	1252	dREQ;
854		1253
855	req->type = EIO_READLINK;	1254	req->type = ix;
856	req->sv1 = newSVsv (path);	1255	req_set_path1 (req, pathname);
857	req->ptr1 = SvPVbyte_nolen (req->sv1);
858		1256
859	REQ_SEND;	1257	REQ_SEND;
860	}	1258	}
861		1259
862	void	1260	void
863	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1261	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
864	PROTOTYPE: $$$$;$
865	PPCODE:	1262	PPCODE:
866	{	1263	{
867	int ifd = s_fileno_croak (in_fh , 0);	1264	int ifd = s_fileno_croak (in_fh , 0);
868	int ofd = s_fileno_croak (out_fh, 1);	1265	int ofd = s_fileno_croak (out_fh, 1);
869	dREQ;	1266	dREQ;
…		…
879	REQ_SEND;	1276	REQ_SEND;
880	}	1277	}
881		1278
882	void	1279	void
883	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1280	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
884	PROTOTYPE: $$$;$
885	PPCODE:	1281	PPCODE:
886	{	1282	{
887	int fd = s_fileno_croak (fh, 0);	1283	int fd = s_fileno_croak (fh, 0);
888	dREQ;	1284	dREQ;
889		1285
…		…
904	aio_statvfs = EIO_STATVFS	1300	aio_statvfs = EIO_STATVFS
905	PPCODE:	1301	PPCODE:
906	{	1302	{
907	dREQ;	1303	dREQ;
908		1304
909	req->sv1 = newSVsv (fh_or_path);	1305	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
910
911	if (SvPOK (req->sv1))
912	{
913	req->type = ix;
914	req->ptr1 = SvPVbyte_nolen (req->sv1);
915	}
916	else
917	{
918	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
919	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
920	}
921		1306
922	REQ_SEND;	1307	REQ_SEND;
923	}	1308	}
		1309
		1310	UV
		1311	major (UV dev)
		1312	ALIAS:
		1313	minor = 1
		1314	CODE:
		1315	RETVAL = ix ? major (dev) : minor (dev);
		1316	OUTPUT:
		1317	RETVAL
		1318
		1319	UV
		1320	makedev (UV maj, UV min)
		1321	CODE:
		1322	RETVAL = makedev (maj, min);
		1323	OUTPUT:
		1324	RETVAL
924		1325
925	void	1326	void
926	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1327	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
927	PPCODE:	1328	PPCODE:
928	{	1329	{
929	dREQ;	1330	dREQ;
930		1331
931	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1332	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
932	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1333	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
933	req->sv1 = newSVsv (fh_or_path);	1334	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
934
935	if (SvPOK (req->sv1))
936	{
937	req->type = EIO_UTIME;
938	req->ptr1 = SvPVbyte_nolen (req->sv1);
939	}
940	else
941	{
942	req->type = EIO_FUTIME;
943	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
944	}
945		1335
946	REQ_SEND;	1336	REQ_SEND;
947	}	1337	}
948		1338
949	void	1339	void
950	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1340	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)
951	PPCODE:	1341	PPCODE:
952	{	1342	{
953	dREQ;	1343	dREQ;
954		1344
955	req->sv1 = newSVsv (fh_or_path);
956	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1345	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
957		1346	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
958	if (SvPOK (req->sv1))
959	{
960	req->type = EIO_TRUNCATE;
961	req->ptr1 = SvPVbyte_nolen (req->sv1);
962	}
963	else
964	{
965	req->type = EIO_FTRUNCATE;
966	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
967	}
968		1347
969	REQ_SEND;	1348	REQ_SEND;
970	}	1349	}
971		1350
972	void	1351	void
973	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1352	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
974	ALIAS:
975	aio_chmod = EIO_CHMOD
976	aio_mkdir = EIO_MKDIR
977	PPCODE:	1353	PPCODE:
978	{	1354	{
979	dREQ;	1355	dREQ;
980		1356
981	req->int2 = mode;	1357	req->int2 = mode;
982	req->sv1 = newSVsv (fh_or_path);	1358	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
983
984	if (SvPOK (req->sv1))
985	{
986	req->type = ix;
987	req->ptr1 = SvPVbyte_nolen (req->sv1);
988	}
989	else
990	{
991	req->type = EIO_FCHMOD;
992	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
993	}
994		1359
995	REQ_SEND;	1360	REQ_SEND;
996	}	1361	}
997		1362
998	void	1363	void
…		…
1001	{	1366	{
1002	dREQ;	1367	dREQ;
1003		1368
1004	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1369	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1005	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1370	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1006	req->sv1 = newSVsv (fh_or_path);	1371	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1007
1008	if (SvPOK (req->sv1))
1009	{
1010	req->type = EIO_CHOWN;
1011	req->ptr1 = SvPVbyte_nolen (req->sv1);
1012	}
1013	else
1014	{
1015	req->type = EIO_FCHOWN;
1016	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1017	}
1018		1372
1019	REQ_SEND;	1373	REQ_SEND;
1020	}	1374	}
1021		1375
1022	void	1376	void
…		…
1024	PPCODE:	1378	PPCODE:
1025	{	1379	{
1026	dREQ;	1380	dREQ;
1027		1381
1028	req->type = EIO_READDIR;	1382	req->type = EIO_READDIR;
1029	req->sv1 = newSVsv (pathname);
1030	req->ptr1 = SvPVbyte_nolen (req->sv1);
1031	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1383	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1032		1384
1033	if (flags & EIO_READDIR_DENTS)	1385	if (flags & EIO_READDIR_DENTS)
1034	req->int1 |= EIO_READDIR_CUSTOM2;	1386	req->int1 |= EIO_READDIR_CUSTOM2;
1035		1387
		1388	req_set_path1 (req, pathname);
		1389
1036	REQ_SEND;	1390	REQ_SEND;
		1391	}
		1392
		1393	void
		1394	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)
		1395	PPCODE:
		1396	{
		1397	dREQ;
		1398
		1399	req->type = EIO_MKDIR;
		1400	req->int2 = mode;
		1401	req_set_path1 (req, pathname);
		1402
		1403	REQ_SEND;
1037	}	1404	}
1038		1405
1039	void	1406	void
1040	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1407	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1041	ALIAS:	1408	ALIAS:
…		…
1045	PPCODE:	1412	PPCODE:
1046	{	1413	{
1047	dREQ;	1414	dREQ;
1048		1415
1049	req->type = ix;	1416	req->type = ix;
1050	req->sv1 = newSVsv (pathname);	1417	req_set_path1 (req, pathname);
1051	req->ptr1 = SvPVbyte_nolen (req->sv1);
1052		1418
1053	REQ_SEND;	1419	REQ_SEND;
1054	}	1420	}
1055		1421
1056	void	1422	void
…		…
1059	aio_link = EIO_LINK	1425	aio_link = EIO_LINK
1060	aio_symlink = EIO_SYMLINK	1426	aio_symlink = EIO_SYMLINK
1061	aio_rename = EIO_RENAME	1427	aio_rename = EIO_RENAME
1062	PPCODE:	1428	PPCODE:
1063	{	1429	{
		1430	eio_wd wd2 = 0;
1064	dREQ;	1431	dREQ;
1065		1432
1066	req->type = ix;	1433	req->type = ix;
1067	req->sv1 = newSVsv (oldpath);	1434	req_set_path1 (req, oldpath);
1068	req->ptr1 = SvPVbyte_nolen (req->sv1);	1435	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1069	req->sv2 = newSVsv (newpath);	1436	req->int3 = (long)wd2;
1070	req->ptr2 = SvPVbyte_nolen (req->sv2);
1071		1437
1072	REQ_SEND;	1438	REQ_SEND;
1073	}	1439	}
1074		1440
1075	void	1441	void
…		…
1077	PPCODE:	1443	PPCODE:
1078	{	1444	{
1079	dREQ;	1445	dREQ;
1080		1446
1081	req->type = EIO_MKNOD;	1447	req->type = EIO_MKNOD;
1082	req->sv1 = newSVsv (pathname);
1083	req->ptr1 = SvPVbyte_nolen (req->sv1);
1084	req->int2 = (mode_t)mode;	1448	req->int2 = (mode_t)mode;
1085	req->offs = dev;	1449	req->offs = dev;
		1450	req_set_path1 (req, pathname);
1086		1451
1087	REQ_SEND;	1452	REQ_SEND;
1088	}	1453	}
1089		1454
1090	void	1455	void
1091	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1456	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1092	ALIAS:	1457	ALIAS:
1093	aio_mtouch = EIO_MTOUCH	1458	aio_mtouch = EIO_MTOUCH
1094	aio_msync = EIO_MSYNC	1459	aio_msync = EIO_MSYNC
1095	PROTOTYPE: $$$$;$
1096	PPCODE:	1460	PPCODE:
1097	{	1461	{
1098	STRLEN svlen;	1462	STRLEN svlen;
		1463	char *svptr = SvPVbyte (data, svlen);
1099	UV len = SvUV (length);	1464	UV len = SvUV (length);
1100	char *svptr = SvPVbyte (data, svlen);
1101		1465
1102	if (offset < 0)	1466	if (offset < 0)
1103	offset += svlen;	1467	offset += svlen;
1104		1468
1105	if (offset < 0 || offset > svlen)	1469	if (offset < 0 || offset > svlen)
…		…
1110		1474
1111	{	1475	{
1112	dREQ;	1476	dREQ;
1113		1477
1114	req->type = ix;	1478	req->type = ix;
1115	req->size = len;
1116	req->sv2 = SvREFCNT_inc (data);	1479	req->sv2 = SvREFCNT_inc (data);
1117	req->ptr2 = (char *)svptr + offset;	1480	req->ptr2 = (char *)svptr + offset;
		1481	req->size = len;
1118	req->int1 = flags;	1482	req->int1 = flags;
1119		1483
1120	REQ_SEND;	1484	REQ_SEND;
1121	}	1485	}
1122	}	1486	}
1123		1487
1124	void	1488	void
		1489	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1490	PPCODE:
		1491	{
		1492	STRLEN svlen;
		1493	char *svptr = SvPVbyte (data, svlen);
		1494	UV len = SvUV (length);
		1495
		1496	if (offset < 0)
		1497	offset += svlen;
		1498
		1499	if (offset < 0 || offset > svlen)
		1500	croak ("offset outside of scalar");
		1501
		1502	if (!SvOK (length) || len + offset > svlen)
		1503	len = svlen - offset;
		1504
		1505	{
		1506	dREQ;
		1507
		1508	req->type = EIO_MLOCK;
		1509	req->sv2 = SvREFCNT_inc (data);
		1510	req->ptr2 = (char *)svptr + offset;
		1511	req->size = len;
		1512
		1513	REQ_SEND;
		1514	}
		1515	}
		1516
		1517	void
		1518	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1519	PPCODE:
		1520	{
		1521	dREQ;
		1522
		1523	req->type = EIO_MLOCKALL;
		1524	req->int1 = flags;
		1525
		1526	REQ_SEND;
		1527	}
		1528
		1529	void
		1530	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback=&PL_sv_undef)
		1531	PPCODE:
		1532	{
		1533	int fd = s_fileno_croak (fh, 0);
		1534	dREQ;
		1535
		1536	req->type = EIO_CUSTOM;
		1537	req->sv1 = newSVsv (fh);
		1538	req->int1 = fd;
		1539
		1540	req->feed = fiemap;
		1541	#if HAVE_FIEMAP
		1542	/* keep our fingers crossed that the next two types are 64 bit */
		1543	req->offs = start;
		1544	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1545	req->int2 = flags;
		1546	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1547	#endif
		1548
		1549	REQ_SEND;
		1550	}
		1551
		1552	void
1125	aio_busy (double delay, SV *callback=&PL_sv_undef)	1553	aio_busy (double delay, SV *callback=&PL_sv_undef)
1126	PPCODE:	1554	PPCODE:
1127	{	1555	{
1128	dREQ;	1556	dREQ;
1129		1557
…		…
1133	REQ_SEND;	1561	REQ_SEND;
1134	}	1562	}
1135		1563
1136	void	1564	void
1137	aio_group (SV *callback=&PL_sv_undef)	1565	aio_group (SV *callback=&PL_sv_undef)
1138	PROTOTYPE: ;$
1139	PPCODE:	1566	PPCODE:
1140	{	1567	{
1141	dREQ;	1568	dREQ;
1142		1569
1143	req->type = EIO_GROUP;	1570	req->type = EIO_GROUP;
…		…
1160	REQ_SEND;	1587	REQ_SEND;
1161	}	1588	}
1162		1589
1163	int	1590	int
1164	aioreq_pri (int pri = 0)	1591	aioreq_pri (int pri = 0)
1165	PROTOTYPE: ;$
1166	CODE:	1592	CODE:
1167	RETVAL = next_pri;	1593	RETVAL = next_pri;
1168	if (items > 0)	1594	if (items > 0)
1169	{	1595	{
1170	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1596	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1182	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1608	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1183	next_pri = nice;	1609	next_pri = nice;
1184		1610
1185	void	1611	void
1186	flush ()	1612	flush ()
1187	PROTOTYPE:
1188	CODE:	1613	CODE:
1189	while (eio_nreqs ())	1614	while (eio_nreqs ())
1190	{	1615	{
1191	poll_wait ();	1616	poll_wait ();
1192	poll_cb ();	1617	poll_cb ();
1193	}	1618	}
1194		1619
1195	int	1620	int
1196	poll()	1621	poll ()
1197	PROTOTYPE:
1198	CODE:	1622	CODE:
1199	poll_wait ();	1623	poll_wait ();
1200	RETVAL = poll_cb ();	1624	RETVAL = poll_cb ();
1201	OUTPUT:	1625	OUTPUT:
1202	RETVAL	1626	RETVAL
1203		1627
1204	int	1628	int
1205	poll_fileno()	1629	poll_fileno ()
1206	PROTOTYPE:
1207	CODE:	1630	CODE:
1208	RETVAL = s_epipe_fd (&respipe);	1631	RETVAL = s_epipe_fd (&respipe);
1209	OUTPUT:	1632	OUTPUT:
1210	RETVAL	1633	RETVAL
1211		1634
1212	int	1635	int
1213	poll_cb(...)	1636	poll_cb (...)
1214	PROTOTYPE:	1637	PROTOTYPE:
1215	CODE:	1638	CODE:
1216	RETVAL = poll_cb ();	1639	RETVAL = poll_cb ();
1217	OUTPUT:	1640	OUTPUT:
1218	RETVAL	1641	RETVAL
1219		1642
1220	void	1643	void
1221	poll_wait()	1644	poll_wait ()
1222	PROTOTYPE:
1223	CODE:	1645	CODE:
1224	poll_wait ();	1646	poll_wait ();
1225		1647
1226	int	1648	int
1227	nreqs()	1649	nreqs ()
1228	PROTOTYPE:
1229	CODE:	1650	CODE:
1230	RETVAL = eio_nreqs ();	1651	RETVAL = eio_nreqs ();
1231	OUTPUT:	1652	OUTPUT:
1232	RETVAL	1653	RETVAL
1233		1654
1234	int	1655	int
1235	nready()	1656	nready ()
1236	PROTOTYPE:
1237	CODE:	1657	CODE:
1238	RETVAL = eio_nready ();	1658	RETVAL = eio_nready ();
1239	OUTPUT:	1659	OUTPUT:
1240	RETVAL	1660	RETVAL
1241		1661
1242	int	1662	int
1243	npending()	1663	npending ()
1244	PROTOTYPE:
1245	CODE:	1664	CODE:
1246	RETVAL = eio_npending ();	1665	RETVAL = eio_npending ();
1247	OUTPUT:	1666	OUTPUT:
1248	RETVAL	1667	RETVAL
1249		1668
1250	int	1669	int
1251	nthreads()	1670	nthreads ()
1252	PROTOTYPE:
1253	CODE:	1671	CODE:
1254	RETVAL = eio_nthreads ();	1672	RETVAL = eio_nthreads ();
1255	OUTPUT:	1673	OUTPUT:
1256	RETVAL	1674	RETVAL
1257		1675
1258	int	1676	int
1259	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1677	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1260	PROTOTYPE: $$$$
1261	CODE:	1678	CODE:
1262	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1263	RETVAL = posix_fadvise (fh, offset, length, advice);	1679	RETVAL = posix_fadvise (fh, offset, length, advice);
1264	#else
1265	RETVAL = errno = ENOSYS;
1266	#endif
1267	OUTPUT:	1680	OUTPUT:
1268	RETVAL	1681	RETVAL
1269		1682
1270	ssize_t	1683	IV
1271	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1684	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1272	PROTOTYPE: $$$$
1273	CODE:	1685	CODE:
1274	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1686	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1275	OUTPUT:	1687	OUTPUT:
1276	RETVAL	1688	RETVAL
1277		1689
		1690	void
		1691	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
		1692	PPCODE:
		1693	sv_unmagic (scalar, MMAP_MAGIC);
		1694	{
		1695	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1696	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1697	if (addr == (void *)-1)
		1698	XSRETURN_NO;
		1699
		1700	sv_force_normal (scalar);
		1701
		1702	/* we store the length in mg_obj, as namlen is I32 :/ */
		1703	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1704	->mg_obj = (SV *)length;
		1705
		1706	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1707
		1708	if (!(prot & PROT_WRITE))
		1709	SvREADONLY_on (scalar);
		1710
		1711	if (SvLEN (scalar))
		1712	Safefree (SvPVX (scalar));
		1713
		1714	SvPVX (scalar) = (char *)addr;
		1715	SvCUR_set (scalar, length);
		1716	SvLEN_set (scalar, 0);
		1717	SvPOK_only (scalar);
		1718
		1719	XSRETURN_YES;
		1720	}
		1721
		1722	void
		1723	munmap (SV *scalar)
		1724	CODE:
		1725	sv_unmagic (scalar, MMAP_MAGIC);
		1726
		1727	int
		1728	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1729	ALIAS:
		1730	mprotect = 1
		1731	CODE:
		1732	{
		1733	STRLEN svlen;
		1734	void *addr = SvPVbyte (scalar, svlen);
		1735	size_t len = SvUV (length);
		1736
		1737	if (offset < 0)
		1738	offset += svlen;
		1739
		1740	if (offset < 0 || offset > svlen)
		1741	croak ("offset outside of scalar");
		1742
		1743	if (!SvOK (length) || len + offset > svlen)
		1744	len = svlen - offset;
		1745
		1746	addr = (void *)(((intptr_t)addr) + offset);
		1747	eio_page_align (&addr, &len);
		1748
		1749	switch (ix)
		1750	{
		1751	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1752	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1753	}
		1754	}
		1755	OUTPUT:
		1756	RETVAL
		1757
		1758	int
		1759	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1760	CODE:
		1761	{
		1762	STRLEN svlen;
		1763	void *addr = SvPVbyte (scalar, svlen);
		1764	size_t len = SvUV (length);
		1765
		1766	if (offset < 0)
		1767	offset += svlen;
		1768
		1769	if (offset < 0 || offset > svlen)
		1770	croak ("offset outside of scalar");
		1771
		1772	if (!SvOK (length) || len + offset > svlen)
		1773	len = svlen - offset;
		1774
		1775	addr = (void *)(((intptr_t)addr) + offset);
		1776	eio_page_align (&addr, &len);
		1777	#if _POSIX_MEMLOCK_RANGE
		1778	RETVAL = munlock (addr, len);
		1779	#else
		1780	RETVAL = EIO_ENOSYS ();
		1781	#endif
		1782	}
		1783	OUTPUT:
		1784	RETVAL
		1785
		1786	int
		1787	munlockall ()
		1788	CODE:
		1789	#if _POSIX_MEMLOCK
		1790	munlockall ();
		1791	#else
		1792	RETVAL = EIO_ENOSYS ();
		1793	#endif
		1794	OUTPUT:
		1795	RETVAL
		1796
		1797	int
		1798	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1799	CODE:
		1800	{
		1801	#if HAVE_LINUX_SPLICE
		1802	loff_t off_in_, off_out_;
		1803	RETVAL = splice (
		1804	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1805	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1806	length, flags
		1807	);
		1808	#else
		1809	RETVAL = EIO_ENOSYS ();
		1810	#endif
		1811	}
		1812	OUTPUT:
		1813	RETVAL
		1814
		1815	int
		1816	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		1817	CODE:
		1818	#if HAVE_LINUX_SPLICE
		1819	RETVAL = tee (rfh, wfh, length, flags);
		1820	#else
		1821	RETVAL = EIO_ENOSYS ();
		1822	#endif
		1823	OUTPUT:
		1824	RETVAL
		1825
1278	void _on_next_submit (SV *cb)	1826	void _on_next_submit (SV *cb)
1279	CODE:	1827	CODE:
1280	SvREFCNT_dec (on_next_submit);	1828	SvREFCNT_dec (on_next_submit);
1281	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1829	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1282		1830
1283	PROTOTYPES: DISABLE	1831	PROTOTYPES: DISABLE
1284		1832
		1833	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1834
		1835	BOOT:
		1836	{
		1837	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1838	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1839	}
		1840
		1841	void
		1842	DESTROY (SV *self)
		1843	CODE:
		1844	{
		1845	aio_wd wd = SvAIO_WD (self);
		1846	#if HAVE_AT
		1847	{
		1848	SV *callback = &PL_sv_undef;
		1849	dREQ; /* clobbers next_pri :/ */
		1850	next_pri = req->pri; /* restore next_pri */
		1851	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1852	req->type = EIO_WD_CLOSE;
		1853	req->wd = wd;
		1854	REQ_SEND;
		1855	}
		1856	#else
		1857	eio_wd_close_sync (wd);
		1858	#endif
		1859	}
		1860
1285	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1861	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1286		1862
1287	void	1863	void
1288	cancel (aio_req_ornot req)	1864	cancel (aio_req_ornot req)
1289	CODE:	1865	CODE:

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