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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.169 by root, Wed Aug 4 16:06:54 2010 UTC vs.
Revision 1.210 by root, Fri Apr 6 11:39:25 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
21	#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22	# include <sys/mman.h>	21	# include <sys/mman.h>
23	#endif	22	#endif
24		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
25	/* perl namespace pollution */	32	/* perl namespace pollution */
26	#undef VERSION	33	#undef VERSION
27
28	#ifdef _WIN32
29
30	# define EIO_STRUCT_DIRENT Direntry_t
31	# undef malloc
32	# undef free
33
34	// perl overrides all those nice win32 functions
35	# undef open
36	# undef read
37	# undef write
38	# undef send
39	# undef recv
40	# undef stat
41	# undef fstat
42	# define lstat stat
43	# undef truncate
44	# undef ftruncate
45	# undef open
46	# undef close
47	# undef unlink
48	# undef rmdir
49	# undef rename
50	# undef lseek
51
52	# define chown(a,b,c) (errno = ENOSYS, -1)
53	# define fchown(a,b,c) (errno = ENOSYS, -1)
54	# define fchmod(a,b) (errno = ENOSYS, -1)
55	# define symlink(a,b) (errno = ENOSYS, -1)
56	# define readlink(a,b,c) (errno = ENOSYS, -1)
57	# define mknod(a,b,c) (errno = ENOSYS, -1)
58	# define truncate(a,b) (errno = ENOSYS, -1)
59	# define ftruncate(fd,o) chsize ((fd), (o))
60	# define fsync(fd) _commit (fd)
61	# define opendir(fd) (errno = ENOSYS, 0)
62	# define readdir(fd) (errno = ENOSYS, -1)
63	# define closedir(fd) (errno = ENOSYS, -1)
64	# define mkdir(a,b) mkdir (a)
65
66	#else
67
68	# include <sys/time.h>
69	# include <sys/select.h>
70	# include <unistd.h>
71	# include <utime.h>
72	# include <signal.h>
73	# define EIO_STRUCT_DIRENT struct dirent
74
75	#endif
76		34
77	/* perl stupidly overrides readdir and maybe others */	35	/* perl stupidly overrides readdir and maybe others */
78	/* with thread-unsafe versions, imagine that :( */	36	/* with thread-unsafe versions, imagine that :( */
79	#undef readdir	37	#undef readdir
80	#undef opendir	38	#undef opendir
81	#undef closedir	39	#undef closedir
82		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
83	#define EIO_STRUCT_STAT Stat_t	76	#define EIO_STRUCT_STATI64
84		77
85	/* use NV for 32 bit perls as it allows larger offsets */
86	#if IVSIZE >= 8
87	# define VAL64 IV
88	# define SvVAL64 SvIV
89	# define newSVval64 newSViv
90	#else	78	#else
91	# define VAL64 NV	79
92	# define SvVAL64 SvNV	80	#include <sys/time.h>
93	# 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
94	#endif	88	#endif
95		89
96	/*****************************************************************************/	90	/*****************************************************************************/
97		91
98	#if __GNUC__ >= 3	92	#if __GNUC__ >= 3
…		…
108		102
109	typedef SV SV8; /* byte-sv, used for argument-checking */	103	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	104	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	105	typedef int aio_wfd; /* write file descriptor */
112		106
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	107	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		108
115	#define EIO_REQ_MEMBERS \	109	#define EIO_REQ_MEMBERS \
116	SV *callback; \	110	SV *callback; \
117	SV *sv1, *sv2; \	111	SV *sv1, *sv2; \
		112	SV *sv3, *sv4; \
118	STRLEN stroffset; \	113	STRLEN stroffset; \
119	SV *self;	114	SV *self;
120		115
121	#define EIO_NO_WRAPPERS 1	116	#define EIO_NO_WRAPPERS 1
122		117
		118	#include "libeio/config.h"
123	#include "libeio/eio.h"	119	#include "libeio/eio.h"
124		120
125	#ifndef POSIX_FADV_NORMAL	121	static int req_invoke (eio_req *req);
126	# define POSIX_FADV_NORMAL 0	122	#define EIO_FINISH(req) req_invoke (req)
127	# define NO_FADVISE 1	123	static void req_destroy (eio_req *grp);
		124	#define EIO_DESTROY(req) req_destroy (req)
		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 */
128	#endif	130	#endif
129	#ifndef POSIX_FADV_SEQUENTIAL
130	# define POSIX_FADV_SEQUENTIAL 0
131	#endif
132	#ifndef POSIX_FADV_RANDOM
133	# define POSIX_FADV_RANDOM 0
134	#endif
135	#ifndef POSIX_FADV_NOREUSE
136	# define POSIX_FADV_NOREUSE 0
137	#endif
138	#ifndef POSIX_FADV_WILLNEED
139	# define POSIX_FADV_WILLNEED 0
140	#endif
141	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0
143	#endif
144		131
145	#ifndef POSIX_MADV_NORMAL	132	#if !HAVE_POSIX_MADVISE
146	# define POSIX_MADV_NORMAL 0	133	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
147	# define NO_MADVISE 1
148	#endif
149	#ifndef POSIX_MADV_SEQUENTIAL
150	# define POSIX_MADV_SEQUENTIAL 0
151	#endif
152	#ifndef POSIX_MADV_RANDOM
153	# define POSIX_MADV_RANDOM 0
154	#endif
155	#ifndef POSIX_MADV_WILLNEED
156	# define POSIX_MADV_WILLNEED 0
157	#endif
158	#ifndef POSIX_MADV_DONTNEED
159	# define POSIX_MADV_DONTNEED 0
160	#endif
161
162	#ifndef ST_NODEV
163	# define ST_NODEV 0
164	#endif
165	#ifndef ST_NOEXEC
166	# define ST_NOEXEC 0
167	#endif
168	#ifndef ST_SYNCHRONOUS
169	# define ST_SYNCHRONOUS 0
170	#endif
171	#ifndef ST_MANDLOCK
172	# define ST_MANDLOCK 0
173	#endif
174	#ifndef ST_WRITE
175	# define ST_WRITE 0
176	#endif
177	#ifndef ST_APPEND
178	# define ST_APPEND 0
179	#endif
180	#ifndef ST_IMMUTABLE
181	# define ST_IMMUTABLE 0
182	#endif
183	#ifndef ST_NOATIME
184	# define ST_NOATIME 0
185	#endif
186	#ifndef ST_NODIRATIME
187	# define ST_NODIRATIME 0
188	#endif
189	#ifndef ST_RELATIME
190	# define ST_RELATIME 0
191	#endif
192
193	#ifndef MCL_CURRENT
194	# define MCL_CURRENT 0
195	#endif
196	#ifndef MCL_FUTURE
197	# define MCL_FUTURE 0
198	#endif	134	#endif
199		135
200	#ifndef MAP_ANONYMOUS	136	#ifndef MAP_ANONYMOUS
201	# ifdef MAP_ANON	137	# ifdef MAP_ANON
202	# define MAP_ANONYMOUS MAP_ANON	138	# define MAP_ANONYMOUS MAP_ANON
203	# else	139	# else
204	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	140	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
205	# endif	141	# endif
206	#endif	142	#endif
207	#ifndef MAP_HUGETLB	143
208	# define MAP_HUGETLB 0	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))
209	#endif	149	#endif
210	#ifndef MAP_LOCKED	150	#ifndef major
211	# define MAP_LOCKED 0	151	# define major(dev) ((dev) >> 8)
212	#endif	152	#endif
213	#ifndef MAP_NORESERVE	153	#ifndef minor
214	# define MAP_NORESERVE 0	154	# define minor(dev) ((dev) & 0xff)
215	#endif
216	#ifndef MAP_POPULATE
217	# define MAP_POPULATE 0
218	#endif
219	#ifndef MAP_NONBLOCK
220	# define MAP_NONBLOCK 0
221	#endif	155	#endif
222		156
223	#ifndef PAGESIZE	157	#ifndef PAGESIZE
224	# define PAGESIZE sysconf (_SC_PAGESIZE)	158	# define PAGESIZE sysconf (_SC_PAGESIZE)
225	#endif	159	#endif
226		160
227	static int req_invoke (eio_req *req);	161	/*****************************************************************************/
228	#define EIO_FINISH(req) req_invoke (req)	162
229	static void req_destroy (eio_req *grp);	163	static void
230	#define EIO_DESTROY(req) req_destroy (req)	164	fiemap (eio_req *req)
		165	{
		166	req->result = -1;
		167
		168	#if HAVE_FIEMAP
		169	for (;;)
		170	{
		171	int count = req->int3;
		172
		173	if (count < 0)
		174	{
		175	struct fiemap fiemap;
		176
		177	fiemap.fm_start = req->offs;
		178	fiemap.fm_length = req->size;
		179	fiemap.fm_flags = req->int2;
		180	fiemap.fm_extent_count = 0;
		181
		182	if (ioctl (req->int1, FS_IOC_FIEMAP, &fiemap))
		183	return;
		184
		185	count = fiemap.fm_mapped_extents;
		186	}
		187
		188	struct fiemap *fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		189	errno = ENOMEM;
		190	if (!fiemap)
		191	return;
		192
		193	req->ptr1 = fiemap;
		194	req->flags |= EIO_FLAG_PTR1_FREE;
		195
		196	fiemap->fm_start = req->offs;
		197	fiemap->fm_length = req->size;
		198	fiemap->fm_flags = req->int2;
		199	fiemap->fm_extent_count = count;
		200
		201	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap))
		202	return;
		203
		204	if (req->int3 >= 0)
		205	break; /* when not autosizing we are done */
		206
		207	if (fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST)
		208	break; /* autosizing successful, we are done */
		209
		210	free (fiemap);
		211	}
		212
		213	req->result = 0;
		214
		215	#else
		216	errno = ENOSYS;
		217	#endif
		218	}
		219
		220	/*****************************************************************************/
231		221
232	enum {	222	enum {
233	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	223	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
234	};	224	};
235		225
236	#include "libeio/eio.c"
237
238	typedef eio_req *aio_req;	226	typedef eio_req *aio_req;
239	typedef eio_req *aio_req_ornot;	227	typedef eio_req *aio_req_ornot;
		228	typedef eio_wd aio_wd;
240		229
241	static SV *on_next_submit;	230	static SV *on_next_submit;
242	static int next_pri = EIO_PRI_DEFAULT;	231	static int next_pri = EIO_PRI_DEFAULT;
243	static int max_outstanding;	232	static int max_outstanding;
244		233
245	static s_epipe respipe;	234	static s_epipe respipe;
246		235
247	static void req_destroy (aio_req req);	236	static void req_destroy (aio_req req);
248	static void req_cancel (aio_req req);	237	static void req_cancel (aio_req req);
249		238
250	static void want_poll (void)	239	static void
		240	want_poll (void)
251	{	241	{
252	/* write a dummy byte to the pipe so fh becomes ready */	242	/* write a dummy byte to the pipe so fh becomes ready */
253	s_epipe_signal (&respipe);	243	s_epipe_signal (&respipe);
254	}	244	}
255		245
256	static void done_poll (void)	246	static void
		247	done_poll (void)
257	{	248	{
258	/* read any signals sent by the worker threads */	249	/* read any signals sent by the worker threads */
259	s_epipe_drain (&respipe);	250	s_epipe_drain (&respipe);
260	}	251	}
261		252
262	/* must be called at most once */	253	/* must be called at most once */
		254	static SV *
263	static SV *req_sv (aio_req req, HV *stash)	255	req_sv (aio_req req, HV *stash)
264	{	256	{
265	if (!req->self)	257	if (!req->self)
266	{	258	{
267	req->self = (SV *)newHV ();	259	req->self = (SV *)newHV ();
268	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	260	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
269	}	261	}
270		262
271	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	263	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
272	}	264	}
273		265
274	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)
275	{	274	{
276	MAGIC *mg;	275	MAGIC *mg;
277		276
278	if (!SvROK (sv)	277	if (!SvROK (sv)
		278	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
279	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	279	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
280	&& SvSTASH (SvRV (sv)) != aio_req_stash	280	&& SvSTASH (SvRV (sv)) != aio_req_stash
281	&& !sv_derived_from (sv, "IO::AIO::REQ")))	281	&& !sv_derived_from (sv, "IO::AIO::REQ")))
282	croak ("object of class IO::AIO::REQ expected");	282	croak ("object of class IO::AIO::REQ expected");
283		283
284	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	284	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
285		285
286	return mg ? (aio_req)mg->mg_ptr : 0;	286	return mg ? (aio_req)mg->mg_ptr : 0;
287	}	287	}
288		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
289	static void aio_grp_feed (aio_req grp)	301	aio_grp_feed (aio_req grp)
290	{	302	{
291	if (grp->sv2 && SvOK (grp->sv2))	303	if (grp->sv2 && SvOK (grp->sv2))
292	{	304	{
293	dSP;	305	dSP;
294		306
…		…
302	FREETMPS;	314	FREETMPS;
303	LEAVE;	315	LEAVE;
304	}	316	}
305	}	317	}
306		318
		319	static void
307	static void req_submit (eio_req *req)	320	req_submit (eio_req *req)
308	{	321	{
309	eio_submit (req);	322	eio_submit (req);
310		323
311	if (expect_false (on_next_submit))	324	if (expect_false (on_next_submit))
312	{	325	{
…		…
319	PUTBACK;	332	PUTBACK;
320	call_sv (cb, G_DISCARD | G_EVAL);	333	call_sv (cb, G_DISCARD | G_EVAL);
321	}	334	}
322	}	335	}
323		336
		337	static int
324	static int req_invoke (eio_req *req)	338	req_invoke (eio_req *req)
325	{	339	{
326	if (req->flags & FLAG_SV2_RO_OFF)	340	if (req->flags & FLAG_SV2_RO_OFF)
327	SvREADONLY_off (req->sv2);	341	SvREADONLY_off (req->sv2);
328		342
329	if (!EIO_CANCELLED (req) && req->callback)	343	if (!EIO_CANCELLED (req) && req->callback)
…		…
340	/* do not recreate the result IV from scratch each time */	354	/* do not recreate the result IV from scratch each time */
341	if (expect_true (sv_result_cache))	355	if (expect_true (sv_result_cache))
342	{	356	{
343	sv_result = sv_result_cache; sv_result_cache = 0;	357	sv_result = sv_result_cache; sv_result_cache = 0;
344	SvIV_set (sv_result, req->result);	358	SvIV_set (sv_result, req->result);
		359	SvIOK_only (sv_result);
345	}	360	}
346	else	361	else
347	{	362	{
348	sv_result = newSViv (req->result);	363	sv_result = newSViv (req->result);
349	SvREADONLY_on (sv_result);	364	SvREADONLY_on (sv_result);
350	}	365	}
351		366
352	switch (req->type)	367	switch (req->type)
353	{	368	{
		369	case EIO_WD_OPEN:
		370	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		371	break;
		372
354	case EIO_READDIR:	373	case EIO_READDIR:
355	{	374	{
356	SV *rv = &PL_sv_undef;	375	SV *rv = &PL_sv_undef;
357		376
358	if (req->result >= 0)	377	if (req->result >= 0)
…		…
446	case EIO_STATVFS:	465	case EIO_STATVFS:
447	case EIO_FSTATVFS:	466	case EIO_FSTATVFS:
448	{	467	{
449	SV *rv = &PL_sv_undef;	468	SV *rv = &PL_sv_undef;
450		469
		470	#ifndef _WIN32
451	if (req->result >= 0)	471	if (req->result >= 0)
452	{	472	{
453	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	473	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
454	HV *hv = newHV ();	474	HV *hv = newHV ();
455		475
…		…
465	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);
466	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);
467	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);
468	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);
469	}	489	}
		490	#endif
470		491
471	PUSHs (rv);	492	PUSHs (rv);
472	}	493	}
473		494
474	break;	495	break;
…		…
490	case EIO_NOP:	511	case EIO_NOP:
491	case EIO_BUSY:	512	case EIO_BUSY:
492	break;	513	break;
493		514
494	case EIO_READLINK:	515	case EIO_READLINK:
		516	case EIO_REALPATH:
495	if (req->result > 0)	517	if (req->result > 0)
496	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	518	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
497	break;	519	break;
498		520
499	case EIO_STAT:	521	case EIO_STAT:
500	case EIO_LSTAT:	522	case EIO_LSTAT:
501	case EIO_FSTAT:	523	case EIO_FSTAT:
502	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	524	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		525
503	PL_laststatval = req->result;	526	if (!(PL_laststatval = req->result))
		527	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
504	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	528	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		529
505	PUSHs (sv_result);	530	PUSHs (sv_result);
		531	break;
		532
		533	case EIO_SEEK:
		534	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
506	break;	535	break;
507		536
508	case EIO_READ:	537	case EIO_READ:
509	{	538	{
510	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));
…		…
513	SvSETMAGIC (req->sv2);	542	SvSETMAGIC (req->sv2);
514	PUSHs (sv_result);	543	PUSHs (sv_result);
515	}	544	}
516	break;	545	break;
517		546
		547	case EIO_CUSTOM:
		548	if (req->feed == fiemap)
		549	{
		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	}
		581	else
		582	PUSHs (sv_result);
		583	break;
		584
518	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */	585	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
519	if (req->result > 0)	586	if (req->result > 0)
520	SvIV_set (sv_result, 0);	587	SvIV_set (sv_result, 0);
521	/* FALLTHROUGH */	588	/* FALLTHROUGH */
522		589
523	default:	590	default:
…		…
543	}	610	}
544		611
545	return !!SvTRUE (ERRSV);	612	return !!SvTRUE (ERRSV);
546	}	613	}
547		614
		615	static void
548	static void req_destroy (aio_req req)	616	req_destroy (aio_req req)
549	{	617	{
550	if (req->self)	618	if (req->self)
551	{	619	{
552	sv_unmagic (req->self, PERL_MAGIC_ext);	620	sv_unmagic (req->self, PERL_MAGIC_ext);
553	SvREFCNT_dec (req->self);	621	SvREFCNT_dec (req->self);
554	}	622	}
555		623
556	SvREFCNT_dec (req->sv1);	624	SvREFCNT_dec (req->sv1);
557	SvREFCNT_dec (req->sv2);	625	SvREFCNT_dec (req->sv2);
		626	SvREFCNT_dec (req->sv3);
		627	SvREFCNT_dec (req->sv4);
558	SvREFCNT_dec (req->callback);	628	SvREFCNT_dec (req->callback);
559		629
560	Safefree (req);	630	free (req);
561	}	631	}
562		632
		633	static void
563	static void req_cancel_subs (aio_req grp)	634	req_cancel_subs (aio_req grp)
564	{	635	{
565	aio_req sub;
566
567	if (grp->type != EIO_GROUP)	636	if (grp->type != EIO_GROUP)
568	return;	637	return;
569		638
570	SvREFCNT_dec (grp->sv2);	639	SvREFCNT_dec (grp->sv2);
571	grp->sv2 = 0;	640	grp->sv2 = 0;
572		641
573	eio_grp_cancel (grp);	642	eio_grp_cancel (grp);
574	}	643	}
575		644
576	static void	645	static void ecb_cold
577	create_respipe (void)	646	create_respipe (void)
578	{	647	{
579	if (s_epipe_renew (&respipe))	648	if (s_epipe_renew (&respipe))
580	croak ("IO::AIO: unable to initialize result pipe");	649	croak ("IO::AIO: unable to initialize result pipe");
581	}	650	}
582		651
583	static void poll_wait (void)	652	static void
		653	poll_wait (void)
584	{	654	{
585	while (eio_nreqs ())	655	while (eio_nreqs ())
586	{	656	{
587	int size;	657	int size;
588		658
…		…
597		667
598	s_epipe_wait (&respipe);	668	s_epipe_wait (&respipe);
599	}	669	}
600	}	670	}
601		671
602	static int poll_cb (void)	672	static int
		673	poll_cb (void)
603	{	674	{
604	for (;;)	675	for (;;)
605	{	676	{
606	int res = eio_poll ();	677	int res = eio_poll ();
607		678
…		…
613		684
614	poll_wait ();	685	poll_wait ();
615	}	686	}
616	}	687	}
617		688
618	static void atfork_child (void)	689	static void ecb_cold
		690	reinit (void)
619	{	691	{
620	create_respipe ();	692	create_respipe ();
		693
		694	if (eio_init (want_poll, done_poll) < 0)
		695	croak ("IO::AIO: unable to initialise eio library");
621	}	696	}
622		697
623	/*****************************************************************************/	698	/*****************************************************************************/
624		699
625	#if !_POSIX_MAPPED_FILES	700	#if !_POSIX_MAPPED_FILES
626	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	701	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
627	# define munmap(addr,length) (errno = ENOSYS, -1)	702	# define munmap(addr,length) (errno = ENOSYS, -1)
628	#endif	703	#endif
629		704
		705	#if !_POSIX_MEMORY_PROTECTION
		706	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		707	# define PROT_NONE 0
		708	# define PROT_WRITE 0
		709	# define MAP_PRIVATE 0
		710	# define MAP_SHARED 0
		711	# define MAP_FIXED 0
		712	#endif
		713
630	#define MMAP_MAGIC PERL_MAGIC_ext	714	#define MMAP_MAGIC PERL_MAGIC_ext
631		715
632	static int	716	static int ecb_cold
633	mmap_free (pTHX_ SV *sv, MAGIC *mg)	717	mmap_free (pTHX_ SV *sv, MAGIC *mg)
634	{	718	{
635	int old_errno = errno;	719	int old_errno = errno;
636	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	720	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
637	errno = old_errno;	721	errno = old_errno;
…		…
661	{	745	{
662	SvGETMAGIC (cb_sv);	746	SvGETMAGIC (cb_sv);
663	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	747	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
664	}	748	}
665		749
		750	static aio_req ecb_noinline
		751	dreq (SV *callback)
		752	{
		753	SV *cb_cv;
		754	aio_req req;
		755	int req_pri = next_pri;
		756	next_pri = EIO_PRI_DEFAULT;
		757
		758	cb_cv = get_cb (callback);
		759
		760	req = calloc (sizeof (*req), 1);
		761	if (!req)
		762	croak ("out of memory during eio_req allocation");
		763
		764	req->callback = SvREFCNT_inc (cb_cv);
		765	req->pri = req_pri;
		766
		767	return req;
		768	}
		769
666	#define dREQ \	770	#define dREQ \
667	SV *cb_cv; \	771	aio_req req = dreq (callback); \
668	aio_req req; \
669	int req_pri = next_pri; \
670	next_pri = EIO_PRI_DEFAULT; \
671	\
672	cb_cv = get_cb (callback); \
673	\
674	Newz (0, req, 1, eio_req); \
675	if (!req) \
676	croak ("out of memory during eio_req allocation"); \
677	\
678	req->callback = SvREFCNT_inc (cb_cv); \
679	req->pri = req_pri
680		772
681	#define REQ_SEND \	773	#define REQ_SEND \
682	PUTBACK; \	774	PUTBACK; \
683	req_submit (req); \	775	req_submit (req); \
684	SPAGAIN; \	776	SPAGAIN; \
685	\	777	\
686	if (GIMME_V != G_VOID) \	778	if (GIMME_V != G_VOID) \
687	XPUSHs (req_sv (req, aio_req_stash));	779	XPUSHs (req_sv (req, aio_req_stash));
688		780
		781	ecb_inline void
		782	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		783	{
		784	if (expect_false (SvROK (path)))
		785	{
		786	SV *rv = SvRV (path);
		787	SV *wdob;
		788
		789	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		790	{
		791	path = AvARRAY (rv)[1];
		792	wdob = AvARRAY (rv)[0];
		793
		794	if (SvOK (wdob))
		795	{
		796	*wd = SvAIO_WD (wdob);
		797	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		798	}
		799	else
		800	*wd = EIO_INVALID_WD;
		801	}
		802	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		803	{
		804	*wd = (aio_wd)(long)SvIVX (rv);
		805	*wdsv = SvREFCNT_inc_NN (rv);
		806	*ptr = ".";
		807	return; /* path set to "." */
		808	}
		809	else
		810	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		811	}
		812
		813	*pathsv = newSVsv (path);
		814	*ptr = SvPVbyte_nolen (*pathsv);
		815	}
		816
		817	static void ecb_noinline
		818	req_set_path1 (aio_req req, SV *path)
		819	{
		820	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		821	}
		822
		823	static void ecb_noinline
		824	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		825	{
		826	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		827
		828	switch (SvTYPE (rv))
		829	{
		830	case SVt_PVIO:
		831	case SVt_PVLV:
		832	case SVt_PVGV:
		833	req->type = type_fh;
		834	req->sv1 = newSVsv (fh_or_path);
		835	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		836	break;
		837
		838	default:
		839	req->type = type_path;
		840	req_set_path1 (req, fh_or_path);
		841	break;
		842	}
		843	}
		844
		845	XS(boot_IO__AIO) ecb_cold;
		846
689	MODULE = IO::AIO PACKAGE = IO::AIO	847	MODULE = IO::AIO PACKAGE = IO::AIO
690		848
691	PROTOTYPES: ENABLE	849	PROTOTYPES: ENABLE
692		850
693	BOOT:	851	BOOT:
…		…
697	IV iv;	855	IV iv;
698	} *civ, const_iv[] = {	856	} *civ, const_iv[] = {
699	# define const_niv(name, value) { # name, (IV) value },	857	# define const_niv(name, value) { # name, (IV) value },
700	# define const_iv(name) { # name, (IV) name },	858	# define const_iv(name) { # name, (IV) name },
701	# define const_eio(name) { # name, (IV) EIO_ ## name },	859	# define const_eio(name) { # name, (IV) EIO_ ## name },
		860
		861	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		862
		863	const_iv (ENOSYS)
702	const_iv (EXDEV)	864	const_iv (EXDEV)
703	const_iv (ENOSYS)	865	const_iv (EBADR)
		866
704	const_iv (O_RDONLY)	867	const_iv (O_RDONLY)
705	const_iv (O_WRONLY)	868	const_iv (O_WRONLY)
706	const_iv (O_RDWR)	869	const_iv (O_RDWR)
707	const_iv (O_CREAT)	870	const_iv (O_CREAT)
708	const_iv (O_TRUNC)	871	const_iv (O_TRUNC)
709	const_iv (O_EXCL)	872	const_iv (O_EXCL)
710	const_iv (O_APPEND)	873	const_iv (O_APPEND)
711	#ifndef _WIN32	874
		875	const_iv (O_ASYNC)
		876	const_iv (O_DIRECT)
		877	const_iv (O_NOATIME)
		878
		879	const_iv (O_CLOEXEC)
		880	const_iv (O_NOCTTY)
		881	const_iv (O_NOFOLLOW)
		882	const_iv (O_NONBLOCK)
		883	const_iv (O_EXEC)
		884	const_iv (O_SEARCH)
		885	const_iv (O_DIRECTORY)
		886	const_iv (O_DSYNC)
		887	const_iv (O_RSYNC)
		888	const_iv (O_SYNC)
		889	const_iv (O_TTY_INIT)
		890
712	const_iv (S_IFIFO)	891	const_iv (S_IFIFO)
713	#endif	892	const_iv (S_IFCHR)
		893	const_iv (S_IFBLK)
		894	const_iv (S_IFLNK)
		895	const_iv (S_IFREG)
		896	const_iv (S_IFDIR)
		897	const_iv (S_IFWHT)
		898	const_iv (S_IFSOCK)
		899	const_iv (S_IFMT)
		900
714	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	901	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
715	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	902	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
716	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	903	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
717	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	904	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
718	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	905	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
…		…
735	const_iv (ST_IMMUTABLE)	922	const_iv (ST_IMMUTABLE)
736	const_iv (ST_NOATIME)	923	const_iv (ST_NOATIME)
737	const_iv (ST_NODIRATIME)	924	const_iv (ST_NODIRATIME)
738	const_iv (ST_RELATIME)	925	const_iv (ST_RELATIME)
739		926
		927	const_iv (PROT_NONE)
740	const_iv (PROT_EXEC)	928	const_iv (PROT_EXEC)
741	const_iv (PROT_NONE)
742	const_iv (PROT_READ)	929	const_iv (PROT_READ)
743	const_iv (PROT_WRITE)	930	const_iv (PROT_WRITE)
744		931
745	/*const_iv (MAP_FIXED)*/	932	/*const_iv (MAP_FIXED)*/
746	const_iv (MAP_PRIVATE)	933	const_iv (MAP_PRIVATE)
…		…
752	const_iv (MAP_LOCKED)	939	const_iv (MAP_LOCKED)
753	const_iv (MAP_NORESERVE)	940	const_iv (MAP_NORESERVE)
754	const_iv (MAP_POPULATE)	941	const_iv (MAP_POPULATE)
755	const_iv (MAP_NONBLOCK)	942	const_iv (MAP_NONBLOCK)
756		943
		944	const_iv (FIEMAP_FLAG_SYNC)
		945	const_iv (FIEMAP_FLAG_XATTR)
		946	const_iv (FIEMAP_FLAGS_COMPAT)
		947	const_iv (FIEMAP_EXTENT_LAST)
		948	const_iv (FIEMAP_EXTENT_UNKNOWN)
		949	const_iv (FIEMAP_EXTENT_DELALLOC)
		950	const_iv (FIEMAP_EXTENT_ENCODED)
		951	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		952	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		953	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		954	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		955	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		956	const_iv (FIEMAP_EXTENT_MERGED)
		957	const_iv (FIEMAP_EXTENT_SHARED)
		958
		959	const_eio (SEEK_SET)
		960	const_eio (SEEK_CUR)
		961	const_eio (SEEK_END)
		962
757	const_iv (MCL_FUTURE)	963	const_eio (MCL_FUTURE)
758	const_iv (MCL_CURRENT)	964	const_eio (MCL_CURRENT)
759		965
760	const_eio (MS_ASYNC)	966	const_eio (MS_ASYNC)
761	const_eio (MS_INVALIDATE)	967	const_eio (MS_INVALIDATE)
762	const_eio (MS_SYNC)	968	const_eio (MS_SYNC)
763		969
764	const_eio (MT_MODIFY)	970	const_eio (MT_MODIFY)
765		971
766	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	972	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
767	const_eio (SYNC_FILE_RANGE_WRITE)	973	const_eio (SYNC_FILE_RANGE_WRITE)
768	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	974	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		975
		976	const_eio (FALLOC_FL_KEEP_SIZE)
769		977
770	const_eio (READDIR_DENTS)	978	const_eio (READDIR_DENTS)
771	const_eio (READDIR_DIRS_FIRST)	979	const_eio (READDIR_DIRS_FIRST)
772	const_eio (READDIR_STAT_ORDER)	980	const_eio (READDIR_STAT_ORDER)
773	const_eio (READDIR_FOUND_UNKNOWN)	981	const_eio (READDIR_FOUND_UNKNOWN)
…		…
784	};	992	};
785		993
786	aio_stash = gv_stashpv ("IO::AIO" , 1);	994	aio_stash = gv_stashpv ("IO::AIO" , 1);
787	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	995	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
788	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	996	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		997	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
789		998
790	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	999	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
791	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1000	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
792		1001
793	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1002	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
794		1003
795	create_respipe ();	1004	reinit ();
796
797	if (eio_init (want_poll, done_poll) < 0)
798	croak ("IO::AIO: unable to initialise eio library");
799
800	/* atfork child called in fifo order, so before eio's handler */
801	X_THREAD_ATFORK (0, 0, atfork_child);
802	}	1005	}
803		1006
804	void	1007	void
		1008	reinit ()
		1009	PROTOTYPE:
		1010
		1011	void
805	max_poll_reqs (int nreqs)	1012	max_poll_reqs (unsigned int nreqs)
806	PROTOTYPE: $	1013	PROTOTYPE: $
807	CODE:	1014	CODE:
808	eio_set_max_poll_reqs (nreqs);	1015	eio_set_max_poll_reqs (nreqs);
809		1016
810	void	1017	void
…		…
812	PROTOTYPE: $	1019	PROTOTYPE: $
813	CODE:	1020	CODE:
814	eio_set_max_poll_time (nseconds);	1021	eio_set_max_poll_time (nseconds);
815		1022
816	void	1023	void
817	min_parallel (int nthreads)	1024	min_parallel (unsigned int nthreads)
818	PROTOTYPE: $	1025	PROTOTYPE: $
819	CODE:	1026	CODE:
820	eio_set_min_parallel (nthreads);	1027	eio_set_min_parallel (nthreads);
821		1028
822	void	1029	void
823	max_parallel (int nthreads)	1030	max_parallel (unsigned int nthreads)
824	PROTOTYPE: $	1031	PROTOTYPE: $
825	CODE:	1032	CODE:
826	eio_set_max_parallel (nthreads);	1033	eio_set_max_parallel (nthreads);
827		1034
828	void	1035	void
829	max_idle (int nthreads)	1036	max_idle (unsigned int nthreads)
830	PROTOTYPE: $	1037	PROTOTYPE: $
831	CODE:	1038	CODE:
832	eio_set_max_idle (nthreads);	1039	eio_set_max_idle (nthreads);
833		1040
834	void	1041	void
		1042	idle_timeout (unsigned int seconds)
		1043	PROTOTYPE: $
		1044	CODE:
		1045	eio_set_idle_timeout (seconds);
		1046
		1047	void
835	max_outstanding (int maxreqs)	1048	max_outstanding (unsigned int maxreqs)
836	PROTOTYPE: $	1049	PROTOTYPE: $
837	CODE:	1050	CODE:
838	max_outstanding = maxreqs;	1051	max_outstanding = maxreqs;
839		1052
840	void	1053	void
		1054	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)
		1055	PPCODE:
		1056	{
		1057	dREQ;
		1058
		1059	req->type = EIO_WD_OPEN;
		1060	req_set_path1 (req, pathname);
		1061
		1062	REQ_SEND;
		1063	}
		1064
		1065	void
841	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1066	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
842	PROTOTYPE: $$$;$
843	PPCODE:	1067	PPCODE:
844	{	1068	{
845	dREQ;	1069	dREQ;
846		1070
847	req->type = EIO_OPEN;	1071	req->type = EIO_OPEN;
848	req->sv1 = newSVsv (pathname);	1072	req_set_path1 (req, pathname);
849	req->ptr1 = SvPVbyte_nolen (req->sv1);
850	req->int1 = flags;	1073	req->int1 = flags;
851	req->int2 = mode;	1074	req->int2 = mode;
852		1075
853	REQ_SEND;	1076	REQ_SEND;
854	}	1077	}
855		1078
856	void	1079	void
857	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1080	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
858	PROTOTYPE: $;$
859	ALIAS:	1081	ALIAS:
860	aio_fsync = EIO_FSYNC	1082	aio_fsync = EIO_FSYNC
861	aio_fdatasync = EIO_FDATASYNC	1083	aio_fdatasync = EIO_FDATASYNC
		1084	aio_syncfs = EIO_SYNCFS
862	PPCODE:	1085	PPCODE:
863	{	1086	{
864	int fd = s_fileno_croak (fh, 0);	1087	int fd = s_fileno_croak (fh, 0);
865	dREQ;	1088	dREQ;
866		1089
867	req->type = ix;	1090	req->type = ix;
868	req->sv1 = newSVsv (fh);	1091	req->sv1 = newSVsv (fh);
869	req->int1 = fd;	1092	req->int1 = fd;
870		1093
871	REQ_SEND (req);	1094	REQ_SEND;
872	}	1095	}
873		1096
874	void	1097	void
875	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1098	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
876	PROTOTYPE: $$$$;$
877	PPCODE:	1099	PPCODE:
878	{	1100	{
879	int fd = s_fileno_croak (fh, 0);	1101	int fd = s_fileno_croak (fh, 0);
880	dREQ;	1102	dREQ;
881		1103
…		…
884	req->int1 = fd;	1106	req->int1 = fd;
885	req->offs = offset;	1107	req->offs = offset;
886	req->size = nbytes;	1108	req->size = nbytes;
887	req->int2 = flags;	1109	req->int2 = flags;
888		1110
889	REQ_SEND (req);	1111	REQ_SEND;
890	}	1112	}
891		1113
892	void	1114	void
893	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1115	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
894	PROTOTYPE: $;$
895	PPCODE:	1116	PPCODE:
896	{	1117	{
897	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
898	int fd = s_fileno_croak (fh, 0);	1118	int fd = s_fileno_croak (fh, 0);
899	dREQ;	1119	dREQ;
900		1120
901	if (close_pipe < 0)	1121	req->type = EIO_FALLOCATE;
		1122	req->sv1 = newSVsv (fh);
		1123	req->int1 = fd;
		1124	req->int2 = mode;
		1125	req->offs = offset;
		1126	req->size = len;
		1127
		1128	REQ_SEND;
		1129	}
		1130
		1131	void
		1132	aio_close (SV *fh, SV *callback=&PL_sv_undef)
		1133	PPCODE:
		1134	{
		1135	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1136	int fd = s_fileno_croak (fh, 0);
		1137	dREQ;
		1138
		1139	if (expect_false (close_fd < 0))
902	{	1140	{
903	int pipefd [2];	1141	int pipefd [2];
904		1142
		1143	if (
		1144	#ifdef _WIN32
		1145	_pipe (pipefd, 1, _O_BINARY) < 0
		1146	#else
905	if (pipe (pipefd) < 0	1147	pipe (pipefd) < 0
906	|| close (pipefd [1]) < 0
907	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1148	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1149	#endif
		1150	|| close (pipefd [1]) < 0
		1151	)
908	abort (); /*D*/	1152	abort (); /*D*/
909		1153
910	close_pipe = pipefd [0];	1154	close_fd = pipefd [0];
911	}	1155	}
912		1156
913	req->type = EIO_DUP2;	1157	req->type = EIO_DUP2;
914	req->int1 = close_pipe;	1158	req->int1 = close_fd;
915	req->sv2 = newSVsv (fh);	1159	req->sv2 = newSVsv (fh);
916	req->int2 = fd;	1160	req->int2 = fd;
917		1161
918	REQ_SEND (req);	1162	REQ_SEND;
		1163	}
		1164
		1165	void
		1166	aio_seek (SV *fh, SV *offset, int whence, SV *callback=&PL_sv_undef)
		1167	PPCODE:
		1168	{
		1169	STRLEN svlen;
		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;
919	}	1180	}
920		1181
921	void	1182	void
922	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)
923	ALIAS:	1184	ALIAS:
924	aio_read = EIO_READ	1185	aio_read = EIO_READ
925	aio_write = EIO_WRITE	1186	aio_write = EIO_WRITE
926	PROTOTYPE: $$$$$;$
927	PPCODE:	1187	PPCODE:
928	{	1188	{
929	STRLEN svlen;	1189	STRLEN svlen;
930	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1190	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
931	char *svptr = SvPVbyte (data, svlen);	1191	char *svptr = SvPVbyte (data, svlen);
…		…
971	REQ_SEND;	1231	REQ_SEND;
972	}	1232	}
973	}	1233	}
974		1234
975	void	1235	void
976	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1236	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
977	PROTOTYPE: $$;$	1237	ALIAS:
		1238	aio_readlink = EIO_READLINK
		1239	aio_realpath = EIO_REALPATH
978	PPCODE:	1240	PPCODE:
979	{	1241	{
980	SV *data;
981	dREQ;	1242	dREQ;
982		1243
983	req->type = EIO_READLINK;	1244	req->type = ix;
984	req->sv1 = newSVsv (path);	1245	req_set_path1 (req, pathname);
985	req->ptr1 = SvPVbyte_nolen (req->sv1);
986		1246
987	REQ_SEND;	1247	REQ_SEND;
988	}	1248	}
989		1249
990	void	1250	void
991	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)
992	PROTOTYPE: $$$$;$
993	PPCODE:	1252	PPCODE:
994	{	1253	{
995	int ifd = s_fileno_croak (in_fh , 0);	1254	int ifd = s_fileno_croak (in_fh , 0);
996	int ofd = s_fileno_croak (out_fh, 1);	1255	int ofd = s_fileno_croak (out_fh, 1);
997	dREQ;	1256	dREQ;
…		…
1007	REQ_SEND;	1266	REQ_SEND;
1008	}	1267	}
1009		1268
1010	void	1269	void
1011	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1270	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1012	PROTOTYPE: $$$;$
1013	PPCODE:	1271	PPCODE:
1014	{	1272	{
1015	int fd = s_fileno_croak (fh, 0);	1273	int fd = s_fileno_croak (fh, 0);
1016	dREQ;	1274	dREQ;
1017		1275
…		…
1032	aio_statvfs = EIO_STATVFS	1290	aio_statvfs = EIO_STATVFS
1033	PPCODE:	1291	PPCODE:
1034	{	1292	{
1035	dREQ;	1293	dREQ;
1036		1294
1037	req->sv1 = newSVsv (fh_or_path);	1295	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1038
1039	if (SvPOK (req->sv1))
1040	{
1041	req->type = ix;
1042	req->ptr1 = SvPVbyte_nolen (req->sv1);
1043	}
1044	else
1045	{
1046	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1047	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1048	}
1049		1296
1050	REQ_SEND;	1297	REQ_SEND;
1051	}	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
1052		1315
1053	void	1316	void
1054	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)
1055	PPCODE:	1318	PPCODE:
1056	{	1319	{
1057	dREQ;	1320	dREQ;
1058		1321
1059	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1322	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1060	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1323	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1061	req->sv1 = newSVsv (fh_or_path);	1324	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1062
1063	if (SvPOK (req->sv1))
1064	{
1065	req->type = EIO_UTIME;
1066	req->ptr1 = SvPVbyte_nolen (req->sv1);
1067	}
1068	else
1069	{
1070	req->type = EIO_FUTIME;
1071	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1072	}
1073		1325
1074	REQ_SEND;	1326	REQ_SEND;
1075	}	1327	}
1076		1328
1077	void	1329	void
1078	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)
1079	PPCODE:	1331	PPCODE:
1080	{	1332	{
1081	dREQ;	1333	dREQ;
1082		1334
1083	req->sv1 = newSVsv (fh_or_path);
1084	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1335	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1085		1336	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1086	if (SvPOK (req->sv1))
1087	{
1088	req->type = EIO_TRUNCATE;
1089	req->ptr1 = SvPVbyte_nolen (req->sv1);
1090	}
1091	else
1092	{
1093	req->type = EIO_FTRUNCATE;
1094	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1095	}
1096		1337
1097	REQ_SEND;	1338	REQ_SEND;
1098	}	1339	}
1099		1340
1100	void	1341	void
1101	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)
1102	ALIAS:
1103	aio_chmod = EIO_CHMOD
1104	aio_mkdir = EIO_MKDIR
1105	PPCODE:	1343	PPCODE:
1106	{	1344	{
1107	dREQ;	1345	dREQ;
1108		1346
1109	req->int2 = mode;	1347	req->int2 = mode;
1110	req->sv1 = newSVsv (fh_or_path);	1348	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1111
1112	if (SvPOK (req->sv1))
1113	{
1114	req->type = ix;
1115	req->ptr1 = SvPVbyte_nolen (req->sv1);
1116	}
1117	else
1118	{
1119	req->type = EIO_FCHMOD;
1120	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1121	}
1122		1349
1123	REQ_SEND;	1350	REQ_SEND;
1124	}	1351	}
1125		1352
1126	void	1353	void
…		…
1129	{	1356	{
1130	dREQ;	1357	dREQ;
1131		1358
1132	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1359	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1133	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1360	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1134	req->sv1 = newSVsv (fh_or_path);	1361	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1135
1136	if (SvPOK (req->sv1))
1137	{
1138	req->type = EIO_CHOWN;
1139	req->ptr1 = SvPVbyte_nolen (req->sv1);
1140	}
1141	else
1142	{
1143	req->type = EIO_FCHOWN;
1144	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1145	}
1146		1362
1147	REQ_SEND;	1363	REQ_SEND;
1148	}	1364	}
1149		1365
1150	void	1366	void
…		…
1152	PPCODE:	1368	PPCODE:
1153	{	1369	{
1154	dREQ;	1370	dREQ;
1155		1371
1156	req->type = EIO_READDIR;	1372	req->type = EIO_READDIR;
1157	req->sv1 = newSVsv (pathname);
1158	req->ptr1 = SvPVbyte_nolen (req->sv1);
1159	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1373	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1160		1374
1161	if (flags & EIO_READDIR_DENTS)	1375	if (flags & EIO_READDIR_DENTS)
1162	req->int1 |= EIO_READDIR_CUSTOM2;	1376	req->int1 |= EIO_READDIR_CUSTOM2;
1163		1377
		1378	req_set_path1 (req, pathname);
		1379
1164	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;
1165	}	1394	}
1166		1395
1167	void	1396	void
1168	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1397	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1169	ALIAS:	1398	ALIAS:
…		…
1173	PPCODE:	1402	PPCODE:
1174	{	1403	{
1175	dREQ;	1404	dREQ;
1176		1405
1177	req->type = ix;	1406	req->type = ix;
1178	req->sv1 = newSVsv (pathname);	1407	req_set_path1 (req, pathname);
1179	req->ptr1 = SvPVbyte_nolen (req->sv1);
1180		1408
1181	REQ_SEND;	1409	REQ_SEND;
1182	}	1410	}
1183		1411
1184	void	1412	void
…		…
1187	aio_link = EIO_LINK	1415	aio_link = EIO_LINK
1188	aio_symlink = EIO_SYMLINK	1416	aio_symlink = EIO_SYMLINK
1189	aio_rename = EIO_RENAME	1417	aio_rename = EIO_RENAME
1190	PPCODE:	1418	PPCODE:
1191	{	1419	{
		1420	eio_wd wd2 = 0;
1192	dREQ;	1421	dREQ;
1193		1422
1194	req->type = ix;	1423	req->type = ix;
1195	req->sv1 = newSVsv (oldpath);	1424	req_set_path1 (req, oldpath);
1196	req->ptr1 = SvPVbyte_nolen (req->sv1);	1425	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1197	req->sv2 = newSVsv (newpath);	1426	req->int3 = (long)wd2;
1198	req->ptr2 = SvPVbyte_nolen (req->sv2);
1199		1427
1200	REQ_SEND;	1428	REQ_SEND;
1201	}	1429	}
1202		1430
1203	void	1431	void
…		…
1205	PPCODE:	1433	PPCODE:
1206	{	1434	{
1207	dREQ;	1435	dREQ;
1208		1436
1209	req->type = EIO_MKNOD;	1437	req->type = EIO_MKNOD;
1210	req->sv1 = newSVsv (pathname);
1211	req->ptr1 = SvPVbyte_nolen (req->sv1);
1212	req->int2 = (mode_t)mode;	1438	req->int2 = (mode_t)mode;
1213	req->offs = dev;	1439	req->offs = dev;
		1440	req_set_path1 (req, pathname);
1214		1441
1215	REQ_SEND;	1442	REQ_SEND;
1216	}	1443	}
1217		1444
1218	void	1445	void
1219	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1446	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
1220	ALIAS:	1447	ALIAS:
1221	aio_mtouch = EIO_MTOUCH	1448	aio_mtouch = EIO_MTOUCH
1222	aio_msync = EIO_MSYNC	1449	aio_msync = EIO_MSYNC
1223	PROTOTYPE: $$$$;$
1224	PPCODE:	1450	PPCODE:
1225	{	1451	{
1226	STRLEN svlen;	1452	STRLEN svlen;
		1453	char *svptr = SvPVbyte (data, svlen);
1227	UV len = SvUV (length);	1454	UV len = SvUV (length);
1228	char *svptr = SvPVbyte (data, svlen);
1229		1455
1230	if (offset < 0)	1456	if (offset < 0)
1231	offset += svlen;	1457	offset += svlen;
1232		1458
1233	if (offset < 0 || offset > svlen)	1459	if (offset < 0 || offset > svlen)
…		…
1238		1464
1239	{	1465	{
1240	dREQ;	1466	dREQ;
1241		1467
1242	req->type = ix;	1468	req->type = ix;
1243	req->size = len;
1244	req->sv2 = SvREFCNT_inc (data);	1469	req->sv2 = SvREFCNT_inc (data);
1245	req->ptr2 = (char *)svptr + offset;	1470	req->ptr2 = (char *)svptr + offset;
		1471	req->size = len;
1246	req->int1 = flags;	1472	req->int1 = flags;
1247		1473
1248	REQ_SEND;	1474	REQ_SEND;
1249	}	1475	}
1250	}	1476	}
1251		1477
1252	void	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	/* keep our fingers crossed that the next two types are 64 bit */
		1532	req->offs = start;
		1533	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1534	req->int2 = flags;
		1535	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1536
		1537	REQ_SEND;
		1538	}
		1539
		1540	void
1253	aio_busy (double delay, SV *callback=&PL_sv_undef)	1541	aio_busy (double delay, SV *callback=&PL_sv_undef)
1254	PPCODE:	1542	PPCODE:
1255	{	1543	{
1256	dREQ;	1544	dREQ;
1257		1545
…		…
1261	REQ_SEND;	1549	REQ_SEND;
1262	}	1550	}
1263		1551
1264	void	1552	void
1265	aio_group (SV *callback=&PL_sv_undef)	1553	aio_group (SV *callback=&PL_sv_undef)
1266	PROTOTYPE: ;$
1267	PPCODE:	1554	PPCODE:
1268	{	1555	{
1269	dREQ;	1556	dREQ;
1270		1557
1271	req->type = EIO_GROUP;	1558	req->type = EIO_GROUP;
…		…
1288	REQ_SEND;	1575	REQ_SEND;
1289	}	1576	}
1290		1577
1291	int	1578	int
1292	aioreq_pri (int pri = 0)	1579	aioreq_pri (int pri = 0)
1293	PROTOTYPE: ;$
1294	CODE:	1580	CODE:
1295	RETVAL = next_pri;	1581	RETVAL = next_pri;
1296	if (items > 0)	1582	if (items > 0)
1297	{	1583	{
1298	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1584	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1310	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1596	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1311	next_pri = nice;	1597	next_pri = nice;
1312		1598
1313	void	1599	void
1314	flush ()	1600	flush ()
1315	PROTOTYPE:
1316	CODE:	1601	CODE:
1317	while (eio_nreqs ())	1602	while (eio_nreqs ())
1318	{	1603	{
1319	poll_wait ();	1604	poll_wait ();
1320	poll_cb ();	1605	poll_cb ();
1321	}	1606	}
1322		1607
1323	int	1608	int
1324	poll()	1609	poll ()
1325	PROTOTYPE:
1326	CODE:	1610	CODE:
1327	poll_wait ();	1611	poll_wait ();
1328	RETVAL = poll_cb ();	1612	RETVAL = poll_cb ();
1329	OUTPUT:	1613	OUTPUT:
1330	RETVAL	1614	RETVAL
1331		1615
1332	int	1616	int
1333	poll_fileno()	1617	poll_fileno ()
1334	PROTOTYPE:
1335	CODE:	1618	CODE:
1336	RETVAL = s_epipe_fd (&respipe);	1619	RETVAL = s_epipe_fd (&respipe);
1337	OUTPUT:	1620	OUTPUT:
1338	RETVAL	1621	RETVAL
1339		1622
1340	int	1623	int
1341	poll_cb(...)	1624	poll_cb (...)
1342	PROTOTYPE:	1625	PROTOTYPE:
1343	CODE:	1626	CODE:
1344	RETVAL = poll_cb ();	1627	RETVAL = poll_cb ();
1345	OUTPUT:	1628	OUTPUT:
1346	RETVAL	1629	RETVAL
1347		1630
1348	void	1631	void
1349	poll_wait()	1632	poll_wait ()
1350	PROTOTYPE:
1351	CODE:	1633	CODE:
1352	poll_wait ();	1634	poll_wait ();
1353		1635
1354	int	1636	int
1355	nreqs()	1637	nreqs ()
1356	PROTOTYPE:
1357	CODE:	1638	CODE:
1358	RETVAL = eio_nreqs ();	1639	RETVAL = eio_nreqs ();
1359	OUTPUT:	1640	OUTPUT:
1360	RETVAL	1641	RETVAL
1361		1642
1362	int	1643	int
1363	nready()	1644	nready ()
1364	PROTOTYPE:
1365	CODE:	1645	CODE:
1366	RETVAL = eio_nready ();	1646	RETVAL = eio_nready ();
1367	OUTPUT:	1647	OUTPUT:
1368	RETVAL	1648	RETVAL
1369		1649
1370	int	1650	int
1371	npending()	1651	npending ()
1372	PROTOTYPE:
1373	CODE:	1652	CODE:
1374	RETVAL = eio_npending ();	1653	RETVAL = eio_npending ();
1375	OUTPUT:	1654	OUTPUT:
1376	RETVAL	1655	RETVAL
1377		1656
1378	int	1657	int
1379	nthreads()	1658	nthreads ()
1380	PROTOTYPE:
1381	CODE:	1659	CODE:
1382	RETVAL = eio_nthreads ();	1660	RETVAL = eio_nthreads ();
1383	OUTPUT:	1661	OUTPUT:
1384	RETVAL	1662	RETVAL
1385		1663
1386	int	1664	int
1387	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1665	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1388	PROTOTYPE: $$$$
1389	CODE:	1666	CODE:
1390	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1391	RETVAL = posix_fadvise (fh, offset, length, advice);	1667	RETVAL = posix_fadvise (fh, offset, length, advice);
1392	#else
1393	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1394	#endif
1395	OUTPUT:	1668	OUTPUT:
1396	RETVAL	1669	RETVAL
1397		1670
1398	ssize_t	1671	IV
1399	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1672	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1400	PROTOTYPE: $$$$
1401	CODE:	1673	CODE:
1402	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1674	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1403	OUTPUT:	1675	OUTPUT:
1404	RETVAL	1676	RETVAL
1405		1677
1406	void	1678	void
1407	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1679	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1408	PROTOTYPE: $$$$$;$
1409	PPCODE:	1680	PPCODE:
1410	sv_unmagic (scalar, MMAP_MAGIC);	1681	sv_unmagic (scalar, MMAP_MAGIC);
1411	{	1682	{
1412	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1683	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1413	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1684	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
…		…
1436	XSRETURN_YES;	1707	XSRETURN_YES;
1437	}	1708	}
1438		1709
1439	void	1710	void
1440	munmap (SV *scalar)	1711	munmap (SV *scalar)
1441	PROTOTYPE: $
1442	CODE:	1712	CODE:
1443	sv_unmagic (scalar, MMAP_MAGIC);	1713	sv_unmagic (scalar, MMAP_MAGIC);
1444		1714
1445	int	1715	int
1446	madvise (SV *scalar, off_t offset, off_t length, IV advice)	1716	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1447	PROTOTYPE: $$$$	1717	ALIAS:
		1718	mprotect = 1
1448	CODE:	1719	CODE:
1449	{	1720	{
1450	char *addr = SvPV_nolen (scalar) + offset;	1721	STRLEN svlen;
		1722	void *addr = SvPVbyte (scalar, svlen);
		1723	size_t len = SvUV (length);
1451		1724
1452	if (!SvOK (ST (2)))	1725	if (offset < 0)
		1726	offset += svlen;
		1727
		1728	if (offset < 0 || offset > svlen)
		1729	croak ("offset outside of scalar");
		1730
		1731	if (!SvOK (length) || len + offset > svlen)
1453	length = SvCUR (scalar) - offset;	1732	len = svlen - offset;
1454		1733
1455	if (addr >= SvEND (scalar) || length <= 0)	1734	addr = (void *)(((intptr_t)addr) + offset);
1456	XSRETURN_EMPTY;	1735	eio_page_align (&addr, &len);
1457		1736
1458	#if _XOPEN_SOURCE >= 600 && !NO_MADVISE	1737	switch (ix)
		1738	{
1459	RETVAL = posix_madvise (addr, length, advice);	1739	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
1460	#else	1740	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
1461	RETVAL = errno = ENOSYS; /* yes, this is actually correct */	1741	}
1462	#endif
1463	}	1742	}
1464	OUTPUT:	1743	OUTPUT:
1465	RETVAL	1744	RETVAL
1466		1745
1467	int	1746	int
1468	mlockall (int flags)	1747	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
1469	PROTOTYPE: $
1470	CODE:	1748	CODE:
		1749	{
		1750	STRLEN svlen;
		1751	void *addr = SvPVbyte (scalar, svlen);
		1752	size_t len = SvUV (length);
		1753
		1754	if (offset < 0)
		1755	offset += svlen;
		1756
		1757	if (offset < 0 || offset > svlen)
		1758	croak ("offset outside of scalar");
		1759
		1760	if (!SvOK (length) || len + offset > svlen)
		1761	len = svlen - offset;
		1762
		1763	addr = (void *)(((intptr_t)addr) + offset);
		1764	eio_page_align (&addr, &len);
1471	#if _POSIX_MEMLOCK	1765	#if _POSIX_MEMLOCK_RANGE
1472	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	1766	RETVAL = munlock (addr, len);
1473	extern int mallopt (int, int);	1767	#else
1474	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */	1768	RETVAL = ((errno = ENOSYS), -1);
1475	#endif	1769	#endif
1476	mlockall (flags);	1770	}
1477	#else
1478	RETVAL = -1;
1479	errno = ENOSYS;
1480	#endif
1481	OUTPUT:	1771	OUTPUT:
1482	RETVAL	1772	RETVAL
1483		1773
1484	int	1774	int
1485	munlockall ()	1775	munlockall ()
1486	PROTOTYPE:
1487	CODE:	1776	CODE:
1488	#if _POSIX_MEMLOCK	1777	#if _POSIX_MEMLOCK
1489	munlockall ();	1778	munlockall ();
1490	#else	1779	#else
1491	RETVAL = -1;	1780	RETVAL = -1;
…		…
1499	SvREFCNT_dec (on_next_submit);	1788	SvREFCNT_dec (on_next_submit);
1500	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1789	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1501		1790
1502	PROTOTYPES: DISABLE	1791	PROTOTYPES: DISABLE
1503		1792
		1793	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		1794
		1795	BOOT:
		1796	{
		1797	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		1798	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		1799	}
		1800
		1801	void
		1802	DESTROY (SV *self)
		1803	CODE:
		1804	{
		1805	aio_wd wd = SvAIO_WD (self);
		1806	#if HAVE_AT
		1807	{
		1808	SV *callback = &PL_sv_undef;
		1809	dREQ; /* clobbers next_pri :/ */
		1810	next_pri = req->pri; /* restore next_pri */
		1811	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		1812	req->type = EIO_WD_CLOSE;
		1813	req->wd = wd;
		1814	REQ_SEND;
		1815	}
		1816	#else
		1817	eio_wd_close_sync (wd);
		1818	#endif
		1819	}
		1820
1504	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1821	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1505		1822
1506	void	1823	void
1507	cancel (aio_req_ornot req)	1824	cancel (aio_req_ornot req)
1508	CODE:	1825	CODE:

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