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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.170 by root, Wed Aug 4 16:09:36 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);
128	#endif	124	#define EIO_DESTROY(req) req_destroy (req)
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		125
145	#if _XOPEN_SOURCE < 600 || NO_FADVISE	126	#include "libeio/eio.c"
		127
		128	#if !HAVE_POSIX_FADVISE
146	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	129	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
147	#endif	130	#endif
148		131
149	#ifndef POSIX_MADV_NORMAL	132	#if !HAVE_POSIX_MADVISE
150	# define POSIX_MADV_NORMAL 0
151	# define NO_MADVISE 1
152	#endif
153	#ifndef POSIX_MADV_SEQUENTIAL
154	# define POSIX_MADV_SEQUENTIAL 0
155	#endif
156	#ifndef POSIX_MADV_RANDOM
157	# define POSIX_MADV_RANDOM 0
158	#endif
159	#ifndef POSIX_MADV_WILLNEED
160	# define POSIX_MADV_WILLNEED 0
161	#endif
162	#ifndef POSIX_MADV_DONTNEED
163	# define POSIX_MADV_DONTNEED 0
164	#endif
165
166	#if _XOPEN_SOURCE < 600 || NO_MADVISE
167	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	133	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
168	#endif
169
170	#ifndef ST_NODEV
171	# define ST_NODEV 0
172	#endif
173	#ifndef ST_NOEXEC
174	# define ST_NOEXEC 0
175	#endif
176	#ifndef ST_SYNCHRONOUS
177	# define ST_SYNCHRONOUS 0
178	#endif
179	#ifndef ST_MANDLOCK
180	# define ST_MANDLOCK 0
181	#endif
182	#ifndef ST_WRITE
183	# define ST_WRITE 0
184	#endif
185	#ifndef ST_APPEND
186	# define ST_APPEND 0
187	#endif
188	#ifndef ST_IMMUTABLE
189	# define ST_IMMUTABLE 0
190	#endif
191	#ifndef ST_NOATIME
192	# define ST_NOATIME 0
193	#endif
194	#ifndef ST_NODIRATIME
195	# define ST_NODIRATIME 0
196	#endif
197	#ifndef ST_RELATIME
198	# define ST_RELATIME 0
199	#endif
200
201	#ifndef MCL_CURRENT
202	# define MCL_CURRENT 0
203	#endif
204	#ifndef MCL_FUTURE
205	# define MCL_FUTURE 0
206	#endif	134	#endif
207		135
208	#ifndef MAP_ANONYMOUS	136	#ifndef MAP_ANONYMOUS
209	# ifdef MAP_ANON	137	# ifdef MAP_ANON
210	# define MAP_ANONYMOUS MAP_ANON	138	# define MAP_ANONYMOUS MAP_ANON
211	# else	139	# else
212	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	140	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
213	# endif	141	# endif
214	#endif	142	#endif
215	#ifndef MAP_HUGETLB	143
216	# 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))
217	#endif	149	#endif
218	#ifndef MAP_LOCKED	150	#ifndef major
219	# define MAP_LOCKED 0	151	# define major(dev) ((dev) >> 8)
220	#endif	152	#endif
221	#ifndef MAP_NORESERVE	153	#ifndef minor
222	# define MAP_NORESERVE 0	154	# define minor(dev) ((dev) & 0xff)
223	#endif
224	#ifndef MAP_POPULATE
225	# define MAP_POPULATE 0
226	#endif
227	#ifndef MAP_NONBLOCK
228	# define MAP_NONBLOCK 0
229	#endif	155	#endif
230		156
231	#ifndef PAGESIZE	157	#ifndef PAGESIZE
232	# define PAGESIZE sysconf (_SC_PAGESIZE)	158	# define PAGESIZE sysconf (_SC_PAGESIZE)
233	#endif	159	#endif
234		160
235	static int req_invoke (eio_req *req);	161	/*****************************************************************************/
236	#define EIO_FINISH(req) req_invoke (req)	162
237	static void req_destroy (eio_req *grp);	163	static void
238	#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	/*****************************************************************************/
239		221
240	enum {	222	enum {
241	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	223	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
242	};	224	};
243		225
244	#include "libeio/eio.c"
245
246	typedef eio_req *aio_req;	226	typedef eio_req *aio_req;
247	typedef eio_req *aio_req_ornot;	227	typedef eio_req *aio_req_ornot;
		228	typedef eio_wd aio_wd;
248		229
249	static SV *on_next_submit;	230	static SV *on_next_submit;
250	static int next_pri = EIO_PRI_DEFAULT;	231	static int next_pri = EIO_PRI_DEFAULT;
251	static int max_outstanding;	232	static int max_outstanding;
252		233
253	static s_epipe respipe;	234	static s_epipe respipe;
254		235
255	static void req_destroy (aio_req req);	236	static void req_destroy (aio_req req);
256	static void req_cancel (aio_req req);	237	static void req_cancel (aio_req req);
257		238
258	static void want_poll (void)	239	static void
		240	want_poll (void)
259	{	241	{
260	/* write a dummy byte to the pipe so fh becomes ready */	242	/* write a dummy byte to the pipe so fh becomes ready */
261	s_epipe_signal (&respipe);	243	s_epipe_signal (&respipe);
262	}	244	}
263		245
264	static void done_poll (void)	246	static void
		247	done_poll (void)
265	{	248	{
266	/* read any signals sent by the worker threads */	249	/* read any signals sent by the worker threads */
267	s_epipe_drain (&respipe);	250	s_epipe_drain (&respipe);
268	}	251	}
269		252
270	/* must be called at most once */	253	/* must be called at most once */
		254	static SV *
271	static SV *req_sv (aio_req req, HV *stash)	255	req_sv (aio_req req, HV *stash)
272	{	256	{
273	if (!req->self)	257	if (!req->self)
274	{	258	{
275	req->self = (SV *)newHV ();	259	req->self = (SV *)newHV ();
276	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	260	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
277	}	261	}
278		262
279	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	263	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
280	}	264	}
281		265
282	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)
283	{	274	{
284	MAGIC *mg;	275	MAGIC *mg;
285		276
286	if (!SvROK (sv)	277	if (!SvROK (sv)
		278	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
287	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	279	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
288	&& SvSTASH (SvRV (sv)) != aio_req_stash	280	&& SvSTASH (SvRV (sv)) != aio_req_stash
289	&& !sv_derived_from (sv, "IO::AIO::REQ")))	281	&& !sv_derived_from (sv, "IO::AIO::REQ")))
290	croak ("object of class IO::AIO::REQ expected");	282	croak ("object of class IO::AIO::REQ expected");
291		283
292	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	284	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
293		285
294	return mg ? (aio_req)mg->mg_ptr : 0;	286	return mg ? (aio_req)mg->mg_ptr : 0;
295	}	287	}
296		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
297	static void aio_grp_feed (aio_req grp)	301	aio_grp_feed (aio_req grp)
298	{	302	{
299	if (grp->sv2 && SvOK (grp->sv2))	303	if (grp->sv2 && SvOK (grp->sv2))
300	{	304	{
301	dSP;	305	dSP;
302		306
…		…
310	FREETMPS;	314	FREETMPS;
311	LEAVE;	315	LEAVE;
312	}	316	}
313	}	317	}
314		318
		319	static void
315	static void req_submit (eio_req *req)	320	req_submit (eio_req *req)
316	{	321	{
317	eio_submit (req);	322	eio_submit (req);
318		323
319	if (expect_false (on_next_submit))	324	if (expect_false (on_next_submit))
320	{	325	{
…		…
327	PUTBACK;	332	PUTBACK;
328	call_sv (cb, G_DISCARD | G_EVAL);	333	call_sv (cb, G_DISCARD | G_EVAL);
329	}	334	}
330	}	335	}
331		336
		337	static int
332	static int req_invoke (eio_req *req)	338	req_invoke (eio_req *req)
333	{	339	{
334	if (req->flags & FLAG_SV2_RO_OFF)	340	if (req->flags & FLAG_SV2_RO_OFF)
335	SvREADONLY_off (req->sv2);	341	SvREADONLY_off (req->sv2);
336		342
337	if (!EIO_CANCELLED (req) && req->callback)	343	if (!EIO_CANCELLED (req) && req->callback)
…		…
348	/* do not recreate the result IV from scratch each time */	354	/* do not recreate the result IV from scratch each time */
349	if (expect_true (sv_result_cache))	355	if (expect_true (sv_result_cache))
350	{	356	{
351	sv_result = sv_result_cache; sv_result_cache = 0;	357	sv_result = sv_result_cache; sv_result_cache = 0;
352	SvIV_set (sv_result, req->result);	358	SvIV_set (sv_result, req->result);
		359	SvIOK_only (sv_result);
353	}	360	}
354	else	361	else
355	{	362	{
356	sv_result = newSViv (req->result);	363	sv_result = newSViv (req->result);
357	SvREADONLY_on (sv_result);	364	SvREADONLY_on (sv_result);
358	}	365	}
359		366
360	switch (req->type)	367	switch (req->type)
361	{	368	{
		369	case EIO_WD_OPEN:
		370	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		371	break;
		372
362	case EIO_READDIR:	373	case EIO_READDIR:
363	{	374	{
364	SV *rv = &PL_sv_undef;	375	SV *rv = &PL_sv_undef;
365		376
366	if (req->result >= 0)	377	if (req->result >= 0)
…		…
454	case EIO_STATVFS:	465	case EIO_STATVFS:
455	case EIO_FSTATVFS:	466	case EIO_FSTATVFS:
456	{	467	{
457	SV *rv = &PL_sv_undef;	468	SV *rv = &PL_sv_undef;
458		469
		470	#ifndef _WIN32
459	if (req->result >= 0)	471	if (req->result >= 0)
460	{	472	{
461	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	473	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
462	HV *hv = newHV ();	474	HV *hv = newHV ();
463		475
…		…
473	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);
474	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);
475	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);
476	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);
477	}	489	}
		490	#endif
478		491
479	PUSHs (rv);	492	PUSHs (rv);
480	}	493	}
481		494
482	break;	495	break;
…		…
498	case EIO_NOP:	511	case EIO_NOP:
499	case EIO_BUSY:	512	case EIO_BUSY:
500	break;	513	break;
501		514
502	case EIO_READLINK:	515	case EIO_READLINK:
		516	case EIO_REALPATH:
503	if (req->result > 0)	517	if (req->result > 0)
504	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	518	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
505	break;	519	break;
506		520
507	case EIO_STAT:	521	case EIO_STAT:
508	case EIO_LSTAT:	522	case EIO_LSTAT:
509	case EIO_FSTAT:	523	case EIO_FSTAT:
510	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	524	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		525
511	PL_laststatval = req->result;	526	if (!(PL_laststatval = req->result))
		527	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
512	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	528	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		529
513	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)));
514	break;	535	break;
515		536
516	case EIO_READ:	537	case EIO_READ:
517	{	538	{
518	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));
…		…
521	SvSETMAGIC (req->sv2);	542	SvSETMAGIC (req->sv2);
522	PUSHs (sv_result);	543	PUSHs (sv_result);
523	}	544	}
524	break;	545	break;
525		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
526	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 */
527	if (req->result > 0)	586	if (req->result > 0)
528	SvIV_set (sv_result, 0);	587	SvIV_set (sv_result, 0);
529	/* FALLTHROUGH */	588	/* FALLTHROUGH */
530		589
531	default:	590	default:
…		…
551	}	610	}
552		611
553	return !!SvTRUE (ERRSV);	612	return !!SvTRUE (ERRSV);
554	}	613	}
555		614
		615	static void
556	static void req_destroy (aio_req req)	616	req_destroy (aio_req req)
557	{	617	{
558	if (req->self)	618	if (req->self)
559	{	619	{
560	sv_unmagic (req->self, PERL_MAGIC_ext);	620	sv_unmagic (req->self, PERL_MAGIC_ext);
561	SvREFCNT_dec (req->self);	621	SvREFCNT_dec (req->self);
562	}	622	}
563		623
564	SvREFCNT_dec (req->sv1);	624	SvREFCNT_dec (req->sv1);
565	SvREFCNT_dec (req->sv2);	625	SvREFCNT_dec (req->sv2);
		626	SvREFCNT_dec (req->sv3);
		627	SvREFCNT_dec (req->sv4);
566	SvREFCNT_dec (req->callback);	628	SvREFCNT_dec (req->callback);
567		629
568	Safefree (req);	630	free (req);
569	}	631	}
570		632
		633	static void
571	static void req_cancel_subs (aio_req grp)	634	req_cancel_subs (aio_req grp)
572	{	635	{
573	aio_req sub;
574
575	if (grp->type != EIO_GROUP)	636	if (grp->type != EIO_GROUP)
576	return;	637	return;
577		638
578	SvREFCNT_dec (grp->sv2);	639	SvREFCNT_dec (grp->sv2);
579	grp->sv2 = 0;	640	grp->sv2 = 0;
580		641
581	eio_grp_cancel (grp);	642	eio_grp_cancel (grp);
582	}	643	}
583		644
584	static void	645	static void ecb_cold
585	create_respipe (void)	646	create_respipe (void)
586	{	647	{
587	if (s_epipe_renew (&respipe))	648	if (s_epipe_renew (&respipe))
588	croak ("IO::AIO: unable to initialize result pipe");	649	croak ("IO::AIO: unable to initialize result pipe");
589	}	650	}
590		651
591	static void poll_wait (void)	652	static void
		653	poll_wait (void)
592	{	654	{
593	while (eio_nreqs ())	655	while (eio_nreqs ())
594	{	656	{
595	int size;	657	int size;
596		658
…		…
605		667
606	s_epipe_wait (&respipe);	668	s_epipe_wait (&respipe);
607	}	669	}
608	}	670	}
609		671
610	static int poll_cb (void)	672	static int
		673	poll_cb (void)
611	{	674	{
612	for (;;)	675	for (;;)
613	{	676	{
614	int res = eio_poll ();	677	int res = eio_poll ();
615		678
…		…
621		684
622	poll_wait ();	685	poll_wait ();
623	}	686	}
624	}	687	}
625		688
626	static void atfork_child (void)	689	static void ecb_cold
		690	reinit (void)
627	{	691	{
628	create_respipe ();	692	create_respipe ();
		693
		694	if (eio_init (want_poll, done_poll) < 0)
		695	croak ("IO::AIO: unable to initialise eio library");
629	}	696	}
630		697
631	/*****************************************************************************/	698	/*****************************************************************************/
632		699
633	#if !_POSIX_MAPPED_FILES	700	#if !_POSIX_MAPPED_FILES
634	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	701	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
635	# define munmap(addr,length) (errno = ENOSYS, -1)	702	# define munmap(addr,length) (errno = ENOSYS, -1)
636	#endif	703	#endif
637		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
638	#define MMAP_MAGIC PERL_MAGIC_ext	714	#define MMAP_MAGIC PERL_MAGIC_ext
639		715
640	static int	716	static int ecb_cold
641	mmap_free (pTHX_ SV *sv, MAGIC *mg)	717	mmap_free (pTHX_ SV *sv, MAGIC *mg)
642	{	718	{
643	int old_errno = errno;	719	int old_errno = errno;
644	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	720	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
645	errno = old_errno;	721	errno = old_errno;
…		…
669	{	745	{
670	SvGETMAGIC (cb_sv);	746	SvGETMAGIC (cb_sv);
671	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	747	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
672	}	748	}
673		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
674	#define dREQ \	770	#define dREQ \
675	SV *cb_cv; \	771	aio_req req = dreq (callback); \
676	aio_req req; \
677	int req_pri = next_pri; \
678	next_pri = EIO_PRI_DEFAULT; \
679	\
680	cb_cv = get_cb (callback); \
681	\
682	Newz (0, req, 1, eio_req); \
683	if (!req) \
684	croak ("out of memory during eio_req allocation"); \
685	\
686	req->callback = SvREFCNT_inc (cb_cv); \
687	req->pri = req_pri
688		772
689	#define REQ_SEND \	773	#define REQ_SEND \
690	PUTBACK; \	774	PUTBACK; \
691	req_submit (req); \	775	req_submit (req); \
692	SPAGAIN; \	776	SPAGAIN; \
693	\	777	\
694	if (GIMME_V != G_VOID) \	778	if (GIMME_V != G_VOID) \
695	XPUSHs (req_sv (req, aio_req_stash));	779	XPUSHs (req_sv (req, aio_req_stash));
696		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
697	MODULE = IO::AIO PACKAGE = IO::AIO	847	MODULE = IO::AIO PACKAGE = IO::AIO
698		848
699	PROTOTYPES: ENABLE	849	PROTOTYPES: ENABLE
700		850
701	BOOT:	851	BOOT:
…		…
705	IV iv;	855	IV iv;
706	} *civ, const_iv[] = {	856	} *civ, const_iv[] = {
707	# define const_niv(name, value) { # name, (IV) value },	857	# define const_niv(name, value) { # name, (IV) value },
708	# define const_iv(name) { # name, (IV) name },	858	# define const_iv(name) { # name, (IV) name },
709	# 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)
710	const_iv (EXDEV)	864	const_iv (EXDEV)
711	const_iv (ENOSYS)	865	const_iv (EBADR)
		866
712	const_iv (O_RDONLY)	867	const_iv (O_RDONLY)
713	const_iv (O_WRONLY)	868	const_iv (O_WRONLY)
714	const_iv (O_RDWR)	869	const_iv (O_RDWR)
715	const_iv (O_CREAT)	870	const_iv (O_CREAT)
716	const_iv (O_TRUNC)	871	const_iv (O_TRUNC)
717	const_iv (O_EXCL)	872	const_iv (O_EXCL)
718	const_iv (O_APPEND)	873	const_iv (O_APPEND)
719	#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
720	const_iv (S_IFIFO)	891	const_iv (S_IFIFO)
721	#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
722	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	901	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
723	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	902	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
724	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	903	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
725	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	904	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
726	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	905	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
…		…
743	const_iv (ST_IMMUTABLE)	922	const_iv (ST_IMMUTABLE)
744	const_iv (ST_NOATIME)	923	const_iv (ST_NOATIME)
745	const_iv (ST_NODIRATIME)	924	const_iv (ST_NODIRATIME)
746	const_iv (ST_RELATIME)	925	const_iv (ST_RELATIME)
747		926
		927	const_iv (PROT_NONE)
748	const_iv (PROT_EXEC)	928	const_iv (PROT_EXEC)
749	const_iv (PROT_NONE)
750	const_iv (PROT_READ)	929	const_iv (PROT_READ)
751	const_iv (PROT_WRITE)	930	const_iv (PROT_WRITE)
752		931
753	/*const_iv (MAP_FIXED)*/	932	/*const_iv (MAP_FIXED)*/
754	const_iv (MAP_PRIVATE)	933	const_iv (MAP_PRIVATE)
…		…
760	const_iv (MAP_LOCKED)	939	const_iv (MAP_LOCKED)
761	const_iv (MAP_NORESERVE)	940	const_iv (MAP_NORESERVE)
762	const_iv (MAP_POPULATE)	941	const_iv (MAP_POPULATE)
763	const_iv (MAP_NONBLOCK)	942	const_iv (MAP_NONBLOCK)
764		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
765	const_iv (MCL_FUTURE)	963	const_eio (MCL_FUTURE)
766	const_iv (MCL_CURRENT)	964	const_eio (MCL_CURRENT)
767		965
768	const_eio (MS_ASYNC)	966	const_eio (MS_ASYNC)
769	const_eio (MS_INVALIDATE)	967	const_eio (MS_INVALIDATE)
770	const_eio (MS_SYNC)	968	const_eio (MS_SYNC)
771		969
772	const_eio (MT_MODIFY)	970	const_eio (MT_MODIFY)
773		971
774	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	972	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
775	const_eio (SYNC_FILE_RANGE_WRITE)	973	const_eio (SYNC_FILE_RANGE_WRITE)
776	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	974	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		975
		976	const_eio (FALLOC_FL_KEEP_SIZE)
777		977
778	const_eio (READDIR_DENTS)	978	const_eio (READDIR_DENTS)
779	const_eio (READDIR_DIRS_FIRST)	979	const_eio (READDIR_DIRS_FIRST)
780	const_eio (READDIR_STAT_ORDER)	980	const_eio (READDIR_STAT_ORDER)
781	const_eio (READDIR_FOUND_UNKNOWN)	981	const_eio (READDIR_FOUND_UNKNOWN)
…		…
792	};	992	};
793		993
794	aio_stash = gv_stashpv ("IO::AIO" , 1);	994	aio_stash = gv_stashpv ("IO::AIO" , 1);
795	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	995	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
796	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);
797		998
798	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--)
799	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1000	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
800		1001
801	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1002	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
802		1003
803	create_respipe ();	1004	reinit ();
804
805	if (eio_init (want_poll, done_poll) < 0)
806	croak ("IO::AIO: unable to initialise eio library");
807
808	/* atfork child called in fifo order, so before eio's handler */
809	X_THREAD_ATFORK (0, 0, atfork_child);
810	}	1005	}
811		1006
812	void	1007	void
		1008	reinit ()
		1009	PROTOTYPE:
		1010
		1011	void
813	max_poll_reqs (int nreqs)	1012	max_poll_reqs (unsigned int nreqs)
814	PROTOTYPE: $	1013	PROTOTYPE: $
815	CODE:	1014	CODE:
816	eio_set_max_poll_reqs (nreqs);	1015	eio_set_max_poll_reqs (nreqs);
817		1016
818	void	1017	void
…		…
820	PROTOTYPE: $	1019	PROTOTYPE: $
821	CODE:	1020	CODE:
822	eio_set_max_poll_time (nseconds);	1021	eio_set_max_poll_time (nseconds);
823		1022
824	void	1023	void
825	min_parallel (int nthreads)	1024	min_parallel (unsigned int nthreads)
826	PROTOTYPE: $	1025	PROTOTYPE: $
827	CODE:	1026	CODE:
828	eio_set_min_parallel (nthreads);	1027	eio_set_min_parallel (nthreads);
829		1028
830	void	1029	void
831	max_parallel (int nthreads)	1030	max_parallel (unsigned int nthreads)
832	PROTOTYPE: $	1031	PROTOTYPE: $
833	CODE:	1032	CODE:
834	eio_set_max_parallel (nthreads);	1033	eio_set_max_parallel (nthreads);
835		1034
836	void	1035	void
837	max_idle (int nthreads)	1036	max_idle (unsigned int nthreads)
838	PROTOTYPE: $	1037	PROTOTYPE: $
839	CODE:	1038	CODE:
840	eio_set_max_idle (nthreads);	1039	eio_set_max_idle (nthreads);
841		1040
842	void	1041	void
		1042	idle_timeout (unsigned int seconds)
		1043	PROTOTYPE: $
		1044	CODE:
		1045	eio_set_idle_timeout (seconds);
		1046
		1047	void
843	max_outstanding (int maxreqs)	1048	max_outstanding (unsigned int maxreqs)
844	PROTOTYPE: $	1049	PROTOTYPE: $
845	CODE:	1050	CODE:
846	max_outstanding = maxreqs;	1051	max_outstanding = maxreqs;
847		1052
848	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
849	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)
850	PROTOTYPE: $$$;$
851	PPCODE:	1067	PPCODE:
852	{	1068	{
853	dREQ;	1069	dREQ;
854		1070
855	req->type = EIO_OPEN;	1071	req->type = EIO_OPEN;
856	req->sv1 = newSVsv (pathname);	1072	req_set_path1 (req, pathname);
857	req->ptr1 = SvPVbyte_nolen (req->sv1);
858	req->int1 = flags;	1073	req->int1 = flags;
859	req->int2 = mode;	1074	req->int2 = mode;
860		1075
861	REQ_SEND;	1076	REQ_SEND;
862	}	1077	}
863		1078
864	void	1079	void
865	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1080	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
866	PROTOTYPE: $;$
867	ALIAS:	1081	ALIAS:
868	aio_fsync = EIO_FSYNC	1082	aio_fsync = EIO_FSYNC
869	aio_fdatasync = EIO_FDATASYNC	1083	aio_fdatasync = EIO_FDATASYNC
		1084	aio_syncfs = EIO_SYNCFS
870	PPCODE:	1085	PPCODE:
871	{	1086	{
872	int fd = s_fileno_croak (fh, 0);	1087	int fd = s_fileno_croak (fh, 0);
873	dREQ;	1088	dREQ;
874		1089
875	req->type = ix;	1090	req->type = ix;
876	req->sv1 = newSVsv (fh);	1091	req->sv1 = newSVsv (fh);
877	req->int1 = fd;	1092	req->int1 = fd;
878		1093
879	REQ_SEND (req);	1094	REQ_SEND;
880	}	1095	}
881		1096
882	void	1097	void
883	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1098	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
884	PROTOTYPE: $$$$;$
885	PPCODE:	1099	PPCODE:
886	{	1100	{
887	int fd = s_fileno_croak (fh, 0);	1101	int fd = s_fileno_croak (fh, 0);
888	dREQ;	1102	dREQ;
889		1103
…		…
892	req->int1 = fd;	1106	req->int1 = fd;
893	req->offs = offset;	1107	req->offs = offset;
894	req->size = nbytes;	1108	req->size = nbytes;
895	req->int2 = flags;	1109	req->int2 = flags;
896		1110
897	REQ_SEND (req);	1111	REQ_SEND;
898	}	1112	}
899		1113
900	void	1114	void
901	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)
902	PROTOTYPE: $;$
903	PPCODE:	1116	PPCODE:
904	{	1117	{
905	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
906	int fd = s_fileno_croak (fh, 0);	1118	int fd = s_fileno_croak (fh, 0);
907	dREQ;	1119	dREQ;
908		1120
909	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))
910	{	1140	{
911	int pipefd [2];	1141	int pipefd [2];
912		1142
		1143	if (
		1144	#ifdef _WIN32
		1145	_pipe (pipefd, 1, _O_BINARY) < 0
		1146	#else
913	if (pipe (pipefd) < 0	1147	pipe (pipefd) < 0
914	|| close (pipefd [1]) < 0
915	|| 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	)
916	abort (); /*D*/	1152	abort (); /*D*/
917		1153
918	close_pipe = pipefd [0];	1154	close_fd = pipefd [0];
919	}	1155	}
920		1156
921	req->type = EIO_DUP2;	1157	req->type = EIO_DUP2;
922	req->int1 = close_pipe;	1158	req->int1 = close_fd;
923	req->sv2 = newSVsv (fh);	1159	req->sv2 = newSVsv (fh);
924	req->int2 = fd;	1160	req->int2 = fd;
925		1161
926	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;
927	}	1180	}
928		1181
929	void	1182	void
930	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)
931	ALIAS:	1184	ALIAS:
932	aio_read = EIO_READ	1185	aio_read = EIO_READ
933	aio_write = EIO_WRITE	1186	aio_write = EIO_WRITE
934	PROTOTYPE: $$$$$;$
935	PPCODE:	1187	PPCODE:
936	{	1188	{
937	STRLEN svlen;	1189	STRLEN svlen;
938	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1190	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
939	char *svptr = SvPVbyte (data, svlen);	1191	char *svptr = SvPVbyte (data, svlen);
…		…
979	REQ_SEND;	1231	REQ_SEND;
980	}	1232	}
981	}	1233	}
982		1234
983	void	1235	void
984	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1236	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
985	PROTOTYPE: $$;$	1237	ALIAS:
		1238	aio_readlink = EIO_READLINK
		1239	aio_realpath = EIO_REALPATH
986	PPCODE:	1240	PPCODE:
987	{	1241	{
988	SV *data;
989	dREQ;	1242	dREQ;
990		1243
991	req->type = EIO_READLINK;	1244	req->type = ix;
992	req->sv1 = newSVsv (path);	1245	req_set_path1 (req, pathname);
993	req->ptr1 = SvPVbyte_nolen (req->sv1);
994		1246
995	REQ_SEND;	1247	REQ_SEND;
996	}	1248	}
997		1249
998	void	1250	void
999	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)
1000	PROTOTYPE: $$$$;$
1001	PPCODE:	1252	PPCODE:
1002	{	1253	{
1003	int ifd = s_fileno_croak (in_fh , 0);	1254	int ifd = s_fileno_croak (in_fh , 0);
1004	int ofd = s_fileno_croak (out_fh, 1);	1255	int ofd = s_fileno_croak (out_fh, 1);
1005	dREQ;	1256	dREQ;
…		…
1015	REQ_SEND;	1266	REQ_SEND;
1016	}	1267	}
1017		1268
1018	void	1269	void
1019	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1270	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
1020	PROTOTYPE: $$$;$
1021	PPCODE:	1271	PPCODE:
1022	{	1272	{
1023	int fd = s_fileno_croak (fh, 0);	1273	int fd = s_fileno_croak (fh, 0);
1024	dREQ;	1274	dREQ;
1025		1275
…		…
1040	aio_statvfs = EIO_STATVFS	1290	aio_statvfs = EIO_STATVFS
1041	PPCODE:	1291	PPCODE:
1042	{	1292	{
1043	dREQ;	1293	dREQ;
1044		1294
1045	req->sv1 = newSVsv (fh_or_path);	1295	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1046
1047	if (SvPOK (req->sv1))
1048	{
1049	req->type = ix;
1050	req->ptr1 = SvPVbyte_nolen (req->sv1);
1051	}
1052	else
1053	{
1054	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1055	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1056	}
1057		1296
1058	REQ_SEND;	1297	REQ_SEND;
1059	}	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
1060		1315
1061	void	1316	void
1062	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)
1063	PPCODE:	1318	PPCODE:
1064	{	1319	{
1065	dREQ;	1320	dREQ;
1066		1321
1067	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1322	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1068	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1323	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1069	req->sv1 = newSVsv (fh_or_path);	1324	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1070
1071	if (SvPOK (req->sv1))
1072	{
1073	req->type = EIO_UTIME;
1074	req->ptr1 = SvPVbyte_nolen (req->sv1);
1075	}
1076	else
1077	{
1078	req->type = EIO_FUTIME;
1079	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1080	}
1081		1325
1082	REQ_SEND;	1326	REQ_SEND;
1083	}	1327	}
1084		1328
1085	void	1329	void
1086	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)
1087	PPCODE:	1331	PPCODE:
1088	{	1332	{
1089	dREQ;	1333	dREQ;
1090		1334
1091	req->sv1 = newSVsv (fh_or_path);
1092	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1335	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1093		1336	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1094	if (SvPOK (req->sv1))
1095	{
1096	req->type = EIO_TRUNCATE;
1097	req->ptr1 = SvPVbyte_nolen (req->sv1);
1098	}
1099	else
1100	{
1101	req->type = EIO_FTRUNCATE;
1102	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1103	}
1104		1337
1105	REQ_SEND;	1338	REQ_SEND;
1106	}	1339	}
1107		1340
1108	void	1341	void
1109	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)
1110	ALIAS:
1111	aio_chmod = EIO_CHMOD
1112	aio_mkdir = EIO_MKDIR
1113	PPCODE:	1343	PPCODE:
1114	{	1344	{
1115	dREQ;	1345	dREQ;
1116		1346
1117	req->int2 = mode;	1347	req->int2 = mode;
1118	req->sv1 = newSVsv (fh_or_path);	1348	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1119
1120	if (SvPOK (req->sv1))
1121	{
1122	req->type = ix;
1123	req->ptr1 = SvPVbyte_nolen (req->sv1);
1124	}
1125	else
1126	{
1127	req->type = EIO_FCHMOD;
1128	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1129	}
1130		1349
1131	REQ_SEND;	1350	REQ_SEND;
1132	}	1351	}
1133		1352
1134	void	1353	void
…		…
1137	{	1356	{
1138	dREQ;	1357	dREQ;
1139		1358
1140	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1359	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1141	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1360	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1142	req->sv1 = newSVsv (fh_or_path);	1361	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1143
1144	if (SvPOK (req->sv1))
1145	{
1146	req->type = EIO_CHOWN;
1147	req->ptr1 = SvPVbyte_nolen (req->sv1);
1148	}
1149	else
1150	{
1151	req->type = EIO_FCHOWN;
1152	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1153	}
1154		1362
1155	REQ_SEND;	1363	REQ_SEND;
1156	}	1364	}
1157		1365
1158	void	1366	void
…		…
1160	PPCODE:	1368	PPCODE:
1161	{	1369	{
1162	dREQ;	1370	dREQ;
1163		1371
1164	req->type = EIO_READDIR;	1372	req->type = EIO_READDIR;
1165	req->sv1 = newSVsv (pathname);
1166	req->ptr1 = SvPVbyte_nolen (req->sv1);
1167	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1373	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1168		1374
1169	if (flags & EIO_READDIR_DENTS)	1375	if (flags & EIO_READDIR_DENTS)
1170	req->int1 |= EIO_READDIR_CUSTOM2;	1376	req->int1 |= EIO_READDIR_CUSTOM2;
1171		1377
		1378	req_set_path1 (req, pathname);
		1379
1172	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;
1173	}	1394	}
1174		1395
1175	void	1396	void
1176	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1397	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1177	ALIAS:	1398	ALIAS:
…		…
1181	PPCODE:	1402	PPCODE:
1182	{	1403	{
1183	dREQ;	1404	dREQ;
1184		1405
1185	req->type = ix;	1406	req->type = ix;
1186	req->sv1 = newSVsv (pathname);	1407	req_set_path1 (req, pathname);
1187	req->ptr1 = SvPVbyte_nolen (req->sv1);
1188		1408
1189	REQ_SEND;	1409	REQ_SEND;
1190	}	1410	}
1191		1411
1192	void	1412	void
…		…
1195	aio_link = EIO_LINK	1415	aio_link = EIO_LINK
1196	aio_symlink = EIO_SYMLINK	1416	aio_symlink = EIO_SYMLINK
1197	aio_rename = EIO_RENAME	1417	aio_rename = EIO_RENAME
1198	PPCODE:	1418	PPCODE:
1199	{	1419	{
		1420	eio_wd wd2 = 0;
1200	dREQ;	1421	dREQ;
1201		1422
1202	req->type = ix;	1423	req->type = ix;
1203	req->sv1 = newSVsv (oldpath);	1424	req_set_path1 (req, oldpath);
1204	req->ptr1 = SvPVbyte_nolen (req->sv1);	1425	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1205	req->sv2 = newSVsv (newpath);	1426	req->int3 = (long)wd2;
1206	req->ptr2 = SvPVbyte_nolen (req->sv2);
1207		1427
1208	REQ_SEND;	1428	REQ_SEND;
1209	}	1429	}
1210		1430
1211	void	1431	void
…		…
1213	PPCODE:	1433	PPCODE:
1214	{	1434	{
1215	dREQ;	1435	dREQ;
1216		1436
1217	req->type = EIO_MKNOD;	1437	req->type = EIO_MKNOD;
1218	req->sv1 = newSVsv (pathname);
1219	req->ptr1 = SvPVbyte_nolen (req->sv1);
1220	req->int2 = (mode_t)mode;	1438	req->int2 = (mode_t)mode;
1221	req->offs = dev;	1439	req->offs = dev;
		1440	req_set_path1 (req, pathname);
1222		1441
1223	REQ_SEND;	1442	REQ_SEND;
1224	}	1443	}
1225		1444
1226	void	1445	void
1227	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)
1228	ALIAS:	1447	ALIAS:
1229	aio_mtouch = EIO_MTOUCH	1448	aio_mtouch = EIO_MTOUCH
1230	aio_msync = EIO_MSYNC	1449	aio_msync = EIO_MSYNC
1231	PROTOTYPE: $$$$;$
1232	PPCODE:	1450	PPCODE:
1233	{	1451	{
1234	STRLEN svlen;	1452	STRLEN svlen;
		1453	char *svptr = SvPVbyte (data, svlen);
1235	UV len = SvUV (length);	1454	UV len = SvUV (length);
1236	char *svptr = SvPVbyte (data, svlen);
1237		1455
1238	if (offset < 0)	1456	if (offset < 0)
1239	offset += svlen;	1457	offset += svlen;
1240		1458
1241	if (offset < 0 || offset > svlen)	1459	if (offset < 0 || offset > svlen)
…		…
1246		1464
1247	{	1465	{
1248	dREQ;	1466	dREQ;
1249		1467
1250	req->type = ix;	1468	req->type = ix;
1251	req->size = len;
1252	req->sv2 = SvREFCNT_inc (data);	1469	req->sv2 = SvREFCNT_inc (data);
1253	req->ptr2 = (char *)svptr + offset;	1470	req->ptr2 = (char *)svptr + offset;
		1471	req->size = len;
1254	req->int1 = flags;	1472	req->int1 = flags;
1255		1473
1256	REQ_SEND;	1474	REQ_SEND;
1257	}	1475	}
1258	}	1476	}
1259		1477
1260	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
1261	aio_busy (double delay, SV *callback=&PL_sv_undef)	1541	aio_busy (double delay, SV *callback=&PL_sv_undef)
1262	PPCODE:	1542	PPCODE:
1263	{	1543	{
1264	dREQ;	1544	dREQ;
1265		1545
…		…
1269	REQ_SEND;	1549	REQ_SEND;
1270	}	1550	}
1271		1551
1272	void	1552	void
1273	aio_group (SV *callback=&PL_sv_undef)	1553	aio_group (SV *callback=&PL_sv_undef)
1274	PROTOTYPE: ;$
1275	PPCODE:	1554	PPCODE:
1276	{	1555	{
1277	dREQ;	1556	dREQ;
1278		1557
1279	req->type = EIO_GROUP;	1558	req->type = EIO_GROUP;
…		…
1296	REQ_SEND;	1575	REQ_SEND;
1297	}	1576	}
1298		1577
1299	int	1578	int
1300	aioreq_pri (int pri = 0)	1579	aioreq_pri (int pri = 0)
1301	PROTOTYPE: ;$
1302	CODE:	1580	CODE:
1303	RETVAL = next_pri;	1581	RETVAL = next_pri;
1304	if (items > 0)	1582	if (items > 0)
1305	{	1583	{
1306	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1584	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1318	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1596	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1319	next_pri = nice;	1597	next_pri = nice;
1320		1598
1321	void	1599	void
1322	flush ()	1600	flush ()
1323	PROTOTYPE:
1324	CODE:	1601	CODE:
1325	while (eio_nreqs ())	1602	while (eio_nreqs ())
1326	{	1603	{
1327	poll_wait ();	1604	poll_wait ();
1328	poll_cb ();	1605	poll_cb ();
1329	}	1606	}
1330		1607
1331	int	1608	int
1332	poll()	1609	poll ()
1333	PROTOTYPE:
1334	CODE:	1610	CODE:
1335	poll_wait ();	1611	poll_wait ();
1336	RETVAL = poll_cb ();	1612	RETVAL = poll_cb ();
1337	OUTPUT:	1613	OUTPUT:
1338	RETVAL	1614	RETVAL
1339		1615
1340	int	1616	int
1341	poll_fileno()	1617	poll_fileno ()
1342	PROTOTYPE:
1343	CODE:	1618	CODE:
1344	RETVAL = s_epipe_fd (&respipe);	1619	RETVAL = s_epipe_fd (&respipe);
1345	OUTPUT:	1620	OUTPUT:
1346	RETVAL	1621	RETVAL
1347		1622
1348	int	1623	int
1349	poll_cb(...)	1624	poll_cb (...)
1350	PROTOTYPE:	1625	PROTOTYPE:
1351	CODE:	1626	CODE:
1352	RETVAL = poll_cb ();	1627	RETVAL = poll_cb ();
1353	OUTPUT:	1628	OUTPUT:
1354	RETVAL	1629	RETVAL
1355		1630
1356	void	1631	void
1357	poll_wait()	1632	poll_wait ()
1358	PROTOTYPE:
1359	CODE:	1633	CODE:
1360	poll_wait ();	1634	poll_wait ();
1361		1635
1362	int	1636	int
1363	nreqs()	1637	nreqs ()
1364	PROTOTYPE:
1365	CODE:	1638	CODE:
1366	RETVAL = eio_nreqs ();	1639	RETVAL = eio_nreqs ();
1367	OUTPUT:	1640	OUTPUT:
1368	RETVAL	1641	RETVAL
1369		1642
1370	int	1643	int
1371	nready()	1644	nready ()
1372	PROTOTYPE:
1373	CODE:	1645	CODE:
1374	RETVAL = eio_nready ();	1646	RETVAL = eio_nready ();
1375	OUTPUT:	1647	OUTPUT:
1376	RETVAL	1648	RETVAL
1377		1649
1378	int	1650	int
1379	npending()	1651	npending ()
1380	PROTOTYPE:
1381	CODE:	1652	CODE:
1382	RETVAL = eio_npending ();	1653	RETVAL = eio_npending ();
1383	OUTPUT:	1654	OUTPUT:
1384	RETVAL	1655	RETVAL
1385		1656
1386	int	1657	int
1387	nthreads()	1658	nthreads ()
1388	PROTOTYPE:
1389	CODE:	1659	CODE:
1390	RETVAL = eio_nthreads ();	1660	RETVAL = eio_nthreads ();
1391	OUTPUT:	1661	OUTPUT:
1392	RETVAL	1662	RETVAL
1393		1663
1394	int	1664	int
1395	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)
1396	PROTOTYPE: $$$$
1397	CODE:	1666	CODE:
1398	RETVAL = posix_fadvise (fh, offset, length, advice);	1667	RETVAL = posix_fadvise (fh, offset, length, advice);
1399	OUTPUT:	1668	OUTPUT:
1400	RETVAL	1669	RETVAL
1401		1670
1402	ssize_t	1671	IV
1403	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1672	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1404	PROTOTYPE: $$$$
1405	CODE:	1673	CODE:
1406	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1674	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1407	OUTPUT:	1675	OUTPUT:
1408	RETVAL	1676	RETVAL
1409		1677
1410	void	1678	void
1411	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1679	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
1412	PROTOTYPE: $$$$$;$
1413	PPCODE:	1680	PPCODE:
1414	sv_unmagic (scalar, MMAP_MAGIC);	1681	sv_unmagic (scalar, MMAP_MAGIC);
1415	{	1682	{
1416	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1683	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1417	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1684	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
…		…
1440	XSRETURN_YES;	1707	XSRETURN_YES;
1441	}	1708	}
1442		1709
1443	void	1710	void
1444	munmap (SV *scalar)	1711	munmap (SV *scalar)
1445	PROTOTYPE: $
1446	CODE:	1712	CODE:
1447	sv_unmagic (scalar, MMAP_MAGIC);	1713	sv_unmagic (scalar, MMAP_MAGIC);
1448		1714
1449	int	1715	int
1450	madvise (SV *scalar, off_t offset, off_t length, IV advice)	1716	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1451	PROTOTYPE: $$$$	1717	ALIAS:
		1718	mprotect = 1
1452	CODE:	1719	CODE:
1453	{	1720	{
1454	char *addr = SvPV_nolen (scalar) + offset;	1721	STRLEN svlen;
		1722	void *addr = SvPVbyte (scalar, svlen);
		1723	size_t len = SvUV (length);
1455		1724
1456	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)
1457	length = SvCUR (scalar) - offset;	1732	len = svlen - offset;
1458		1733
1459	if (addr >= SvEND (scalar) || length <= 0)	1734	addr = (void *)(((intptr_t)addr) + offset);
1460	XSRETURN_EMPTY;	1735	eio_page_align (&addr, &len);
1461		1736
		1737	switch (ix)
		1738	{
1462	RETVAL = posix_madvise (addr, length, advice);	1739	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1740	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1741	}
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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