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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.159 by root, Thu Jan 7 18:08:21 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
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
		24	#if __linux__
		25	# include <linux/fs.h>
		26	# ifdef FS_IOC_FIEMAP
		27	# include <linux/fiemap.h>
		28	# define HAVE_FIEMAP 1
		29	# endif
		30	#endif
		31
21	/* perl namespace pollution */	32	/* perl namespace pollution */
22	#undef VERSION	33	#undef VERSION
23
24	#ifdef _WIN32
25
26	# define EIO_STRUCT_DIRENT Direntry_t
27	# undef malloc
28	# undef free
29
30	// perl overrides all those nice win32 functions
31	# undef open
32	# undef read
33	# undef write
34	# undef send
35	# undef recv
36	# undef stat
37	# undef fstat
38	# define lstat stat
39	# undef truncate
40	# undef ftruncate
41	# undef open
42	# undef close
43	# undef unlink
44	# undef rmdir
45	# undef rename
46	# undef lseek
47
48	# define chown(a,b,c) (errno = ENOSYS, -1)
49	# define fchown(a,b,c) (errno = ENOSYS, -1)
50	# define fchmod(a,b) (errno = ENOSYS, -1)
51	# define symlink(a,b) (errno = ENOSYS, -1)
52	# define readlink(a,b,c) (errno = ENOSYS, -1)
53	# define mknod(a,b,c) (errno = ENOSYS, -1)
54	# define truncate(a,b) (errno = ENOSYS, -1)
55	# define ftruncate(fd,o) chsize ((fd), (o))
56	# define fsync(fd) _commit (fd)
57	# define opendir(fd) (errno = ENOSYS, 0)
58	# define readdir(fd) (errno = ENOSYS, -1)
59	# define closedir(fd) (errno = ENOSYS, -1)
60	# define mkdir(a,b) mkdir (a)
61
62	#else
63
64	# include <sys/time.h>
65	# include <sys/select.h>
66	# include <unistd.h>
67	# include <utime.h>
68	# include <signal.h>
69	# define EIO_STRUCT_DIRENT struct dirent
70
71	#endif
72		34
73	/* perl stupidly overrides readdir and maybe others */	35	/* perl stupidly overrides readdir and maybe others */
74	/* with thread-unsafe versions, imagine that :( */	36	/* with thread-unsafe versions, imagine that :( */
75	#undef readdir	37	#undef readdir
76	#undef opendir	38	#undef opendir
77	#undef closedir	39	#undef closedir
78		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
79	#define EIO_STRUCT_STAT Stat_t	76	#define EIO_STRUCT_STATI64
80		77
81	/* use NV for 32 bit perls as it allows larger offsets */
82	#if IVSIZE >= 8
83	# define VAL64 IV
84	# define SvVAL64 SvIV
85	# define newSVval64 newSViv
86	#else	78	#else
87	# define VAL64 NV	79
88	# define SvVAL64 SvNV	80	#include <sys/time.h>
89	# 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
90	#endif	88	#endif
91		89
92	/*****************************************************************************/	90	/*****************************************************************************/
93		91
94	#if __GNUC__ >= 3	92	#if __GNUC__ >= 3
…		…
104		102
105	typedef SV SV8; /* byte-sv, used for argument-checking */	103	typedef SV SV8; /* byte-sv, used for argument-checking */
106	typedef int aio_rfd; /* read file desriptor */	104	typedef int aio_rfd; /* read file desriptor */
107	typedef int aio_wfd; /* write file descriptor */	105	typedef int aio_wfd; /* write file descriptor */
108		106
109	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	107	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
110		108
111	#define EIO_REQ_MEMBERS \	109	#define EIO_REQ_MEMBERS \
112	SV *callback; \	110	SV *callback; \
113	SV *sv1, *sv2; \	111	SV *sv1, *sv2; \
		112	SV *sv3, *sv4; \
114	STRLEN stroffset; \	113	STRLEN stroffset; \
115	SV *self;	114	SV *self;
116		115
117	#define EIO_NO_WRAPPERS 1	116	#define EIO_NO_WRAPPERS 1
118		117
		118	#include "libeio/config.h"
119	#include "libeio/eio.h"	119	#include "libeio/eio.h"
120
121	#ifndef POSIX_FADV_NORMAL
122	# define POSIX_FADV_NORMAL 0
123	# define NO_FADVISE 1
124	#endif
125
126	#ifndef POSIX_FADV_SEQUENTIAL
127	# define POSIX_FADV_SEQUENTIAL 0
128	#endif
129
130	#ifndef POSIX_FADV_RANDOM
131	# define POSIX_FADV_RANDOM 0
132	#endif
133
134	#ifndef POSIX_FADV_NOREUSE
135	# define POSIX_FADV_NOREUSE 0
136	#endif
137
138	#ifndef POSIX_FADV_WILLNEED
139	# define POSIX_FADV_WILLNEED 0
140	#endif
141
142	#ifndef POSIX_FADV_DONTNEED
143	# define POSIX_FADV_DONTNEED 0
144	#endif
145
146	#ifndef ST_NODEV
147	# define ST_NODEV 0
148	#endif
149
150	#ifndef ST_NOEXEC
151	# define ST_NOEXEC 0
152	#endif
153
154	#ifndef ST_SYNCHRONOUS
155	# define ST_SYNCHRONOUS 0
156	#endif
157
158	#ifndef ST_MANDLOCK
159	# define ST_MANDLOCK 0
160	#endif
161
162	#ifndef ST_WRITE
163	# define ST_WRITE 0
164	#endif
165
166	#ifndef ST_APPEND
167	# define ST_APPEND 0
168	#endif
169
170	#ifndef ST_IMMUTABLE
171	# define ST_IMMUTABLE 0
172	#endif
173
174	#ifndef ST_NOATIME
175	# define ST_NOATIME 0
176	#endif
177
178	#ifndef ST_NODIRATIME
179	# define ST_NODIRATIME 0
180	#endif
181
182	#ifndef ST_RELATIME
183	# define ST_RELATIME 0
184	#endif
185		120
186	static int req_invoke (eio_req *req);	121	static int req_invoke (eio_req *req);
187	#define EIO_FINISH(req) req_invoke (req)	122	#define EIO_FINISH(req) req_invoke (req)
188	static void req_destroy (eio_req *grp);	123	static void req_destroy (eio_req *grp);
189	#define EIO_DESTROY(req) req_destroy (req)	124	#define EIO_DESTROY(req) req_destroy (req)
190		125
		126	#include "libeio/eio.c"
		127
		128	#if !HAVE_POSIX_FADVISE
		129	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		130	#endif
		131
		132	#if !HAVE_POSIX_MADVISE
		133	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		134	#endif
		135
		136	#ifndef MAP_ANONYMOUS
		137	# ifdef MAP_ANON
		138	# define MAP_ANONYMOUS MAP_ANON
		139	# else
		140	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		141	# endif
		142	#endif
		143
		144	/* defines all sorts of constants to 0 unless they are already defined */
		145	#include "def0.h"
		146
		147	#ifndef makedev
		148	# define makedev(maj,min) (((maj) << 8) | (min))
		149	#endif
		150	#ifndef major
		151	# define major(dev) ((dev) >> 8)
		152	#endif
		153	#ifndef minor
		154	# define minor(dev) ((dev) & 0xff)
		155	#endif
		156
		157	#ifndef PAGESIZE
		158	# define PAGESIZE sysconf (_SC_PAGESIZE)
		159	#endif
		160
		161	/*****************************************************************************/
		162
		163	static void
		164	fiemap (eio_req *req)
		165	{
		166	req->result = -1;
		167
		168	#if HAVE_FIEMAP
		169	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	/*****************************************************************************/
		221
191	enum {	222	enum {
192	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	223	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
193	};	224	};
194		225
195	#include "libeio/eio.c"
196
197	typedef eio_req *aio_req;	226	typedef eio_req *aio_req;
198	typedef eio_req *aio_req_ornot;	227	typedef eio_req *aio_req_ornot;
		228	typedef eio_wd aio_wd;
199		229
200	static SV *on_next_submit;	230	static SV *on_next_submit;
201	static int next_pri = EIO_PRI_DEFAULT;	231	static int next_pri = EIO_PRI_DEFAULT;
202	static int max_outstanding;	232	static int max_outstanding;
203		233
204	static s_epipe respipe;	234	static s_epipe respipe;
205		235
206	static void req_destroy (aio_req req);	236	static void req_destroy (aio_req req);
207	static void req_cancel (aio_req req);	237	static void req_cancel (aio_req req);
208		238
209	static void want_poll (void)	239	static void
		240	want_poll (void)
210	{	241	{
211	/* write a dummy byte to the pipe so fh becomes ready */	242	/* write a dummy byte to the pipe so fh becomes ready */
212	s_epipe_signal (&respipe);	243	s_epipe_signal (&respipe);
213	}	244	}
214		245
215	static void done_poll (void)	246	static void
		247	done_poll (void)
216	{	248	{
217	/* read any signals sent by the worker threads */	249	/* read any signals sent by the worker threads */
218	s_epipe_drain (&respipe);	250	s_epipe_drain (&respipe);
219	}	251	}
220		252
221	/* must be called at most once */	253	/* must be called at most once */
		254	static SV *
222	static SV *req_sv (aio_req req, HV *stash)	255	req_sv (aio_req req, HV *stash)
223	{	256	{
224	if (!req->self)	257	if (!req->self)
225	{	258	{
226	req->self = (SV *)newHV ();	259	req->self = (SV *)newHV ();
227	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	260	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
228	}	261	}
229		262
230	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	263	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
231	}	264	}
232		265
233	static aio_req SvAIO_REQ (SV *sv)	266	static SV *
		267	newSVaio_wd (aio_wd wd)
		268	{
		269	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);
		270	}
		271
		272	static aio_req
		273	SvAIO_REQ (SV *sv)
234	{	274	{
235	MAGIC *mg;	275	MAGIC *mg;
236		276
237	if (!SvROK (sv)	277	if (!SvROK (sv)
		278	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
238	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	279	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
239	&& SvSTASH (SvRV (sv)) != aio_req_stash	280	&& SvSTASH (SvRV (sv)) != aio_req_stash
240	&& !sv_derived_from (sv, "IO::AIO::REQ")))	281	&& !sv_derived_from (sv, "IO::AIO::REQ")))
241	croak ("object of class IO::AIO::REQ expected");	282	croak ("object of class IO::AIO::REQ expected");
242		283
243	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	284	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
244		285
245	return mg ? (aio_req)mg->mg_ptr : 0;	286	return mg ? (aio_req)mg->mg_ptr : 0;
246	}	287	}
247		288
		289	static aio_wd
		290	SvAIO_WD (SV *sv)
		291	{
		292	if (!SvROK (sv)
		293	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		294	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		295	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		296
		297	return (aio_wd)(long)SvIVX (SvRV (sv));
		298	}
		299
		300	static void
248	static void aio_grp_feed (aio_req grp)	301	aio_grp_feed (aio_req grp)
249	{	302	{
250	if (grp->sv2 && SvOK (grp->sv2))	303	if (grp->sv2 && SvOK (grp->sv2))
251	{	304	{
252	dSP;	305	dSP;
253		306
…		…
261	FREETMPS;	314	FREETMPS;
262	LEAVE;	315	LEAVE;
263	}	316	}
264	}	317	}
265		318
		319	static void
266	static void req_submit (eio_req *req)	320	req_submit (eio_req *req)
267	{	321	{
268	eio_submit (req);	322	eio_submit (req);
269		323
270	if (expect_false (on_next_submit))	324	if (expect_false (on_next_submit))
271	{	325	{
…		…
278	PUTBACK;	332	PUTBACK;
279	call_sv (cb, G_DISCARD | G_EVAL);	333	call_sv (cb, G_DISCARD | G_EVAL);
280	}	334	}
281	}	335	}
282		336
		337	static int
283	static int req_invoke (eio_req *req)	338	req_invoke (eio_req *req)
284	{	339	{
285	dSP;
286
287	if (req->flags & FLAG_SV2_RO_OFF)	340	if (req->flags & FLAG_SV2_RO_OFF)
288	SvREADONLY_off (req->sv2);	341	SvREADONLY_off (req->sv2);
289		342
290	if (!EIO_CANCELLED (req) && req->callback)	343	if (!EIO_CANCELLED (req) && req->callback)
291	{	344	{
		345	dSP;
		346	static SV *sv_result_cache; /* caches the result integer SV */
		347	SV *sv_result;
		348
292	ENTER;	349	ENTER;
293	SAVETMPS;	350	SAVETMPS;
294	PUSHMARK (SP);	351	PUSHMARK (SP);
295	EXTEND (SP, 1);	352	EXTEND (SP, 1);
296		353
		354	/* do not recreate the result IV from scratch each time */
		355	if (expect_true (sv_result_cache))
		356	{
		357	sv_result = sv_result_cache; sv_result_cache = 0;
		358	SvIV_set (sv_result, req->result);
		359	SvIOK_only (sv_result);
		360	}
		361	else
		362	{
		363	sv_result = newSViv (req->result);
		364	SvREADONLY_on (sv_result);
		365	}
		366
297	switch (req->type)	367	switch (req->type)
298	{	368	{
		369	case EIO_WD_OPEN:
		370	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		371	break;
		372
299	case EIO_READDIR:	373	case EIO_READDIR:
300	{	374	{
301	SV *rv = &PL_sv_undef;	375	SV *rv = &PL_sv_undef;
302		376
303	if (req->result >= 0)	377	if (req->result >= 0)
…		…
391	case EIO_STATVFS:	465	case EIO_STATVFS:
392	case EIO_FSTATVFS:	466	case EIO_FSTATVFS:
393	{	467	{
394	SV *rv = &PL_sv_undef;	468	SV *rv = &PL_sv_undef;
395		469
		470	#ifndef _WIN32
396	if (req->result >= 0)	471	if (req->result >= 0)
397	{	472	{
398	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	473	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
399	HV *hv = newHV ();	474	HV *hv = newHV ();
400		475
401	rv = sv_2mortal (newRV_noinc (hv));	476	rv = sv_2mortal (newRV_noinc ((SV *)hv));
402		477
403	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	478	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
404	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	479	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
405	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);	480	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
406	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	481	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
…		…
410	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	485	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
411	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	486	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
412	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	487	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
413	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	488	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
414	}	489	}
		490	#endif
415		491
416	PUSHs (rv);	492	PUSHs (rv);
417	}	493	}
418		494
419	break;	495	break;
…		…
435	case EIO_NOP:	511	case EIO_NOP:
436	case EIO_BUSY:	512	case EIO_BUSY:
437	break;	513	break;
438		514
439	case EIO_READLINK:	515	case EIO_READLINK:
		516	case EIO_REALPATH:
440	if (req->result > 0)	517	if (req->result > 0)
441	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	518	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
442	break;	519	break;
443		520
444	case EIO_STAT:	521	case EIO_STAT:
445	case EIO_LSTAT:	522	case EIO_LSTAT:
446	case EIO_FSTAT:	523	case EIO_FSTAT:
447	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	524	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		525
448	PL_laststatval = req->result;	526	if (!(PL_laststatval = req->result))
		527	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
449	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	528	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
450	PUSHs (sv_2mortal (newSViv (req->result)));	529
		530	PUSHs (sv_result);
		531	break;
		532
		533	case EIO_SEEK:
		534	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
451	break;	535	break;
452		536
453	case EIO_READ:	537	case EIO_READ:
454	{	538	{
455	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	539	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
456	*SvEND (req->sv2) = 0;	540	*SvEND (req->sv2) = 0;
457	SvPOK_only (req->sv2);	541	SvPOK_only (req->sv2);
458	SvSETMAGIC (req->sv2);	542	SvSETMAGIC (req->sv2);
459	PUSHs (sv_2mortal (newSViv (req->result)));	543	PUSHs (sv_result);
460	}	544	}
461	break;	545	break;
462		546
463	case EIO_DUP2:	547	case EIO_CUSTOM:
		548	if (req->feed == fiemap)
		549	{
		550	if (!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
		585	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
464	if (req->result > 0)	586	if (req->result > 0)
465	req->result = 0;	587	SvIV_set (sv_result, 0);
466	/* FALLTHROUGH */	588	/* FALLTHROUGH */
467		589
468	default:	590	default:
469	PUSHs (sv_2mortal (newSViv (req->result)));	591	PUSHs (sv_result);
470	break;	592	break;
471	}	593	}
472		594
473	errno = req->errorno;	595	errno = req->errorno;
474		596
475	PUTBACK;	597	PUTBACK;
476	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	598	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
477	SPAGAIN;	599	SPAGAIN;
478		600
		601	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		602	SvREFCNT_dec (sv_result);
		603	else
		604	sv_result_cache = sv_result;
		605
479	FREETMPS;	606	FREETMPS;
480	LEAVE;	607	LEAVE;
481		608
482	PUTBACK;	609	PUTBACK;
483	}	610	}
484		611
485	return !!SvTRUE (ERRSV);	612	return !!SvTRUE (ERRSV);
486	}	613	}
487		614
		615	static void
488	static void req_destroy (aio_req req)	616	req_destroy (aio_req req)
489	{	617	{
490	if (req->self)	618	if (req->self)
491	{	619	{
492	sv_unmagic (req->self, PERL_MAGIC_ext);	620	sv_unmagic (req->self, PERL_MAGIC_ext);
493	SvREFCNT_dec (req->self);	621	SvREFCNT_dec (req->self);
494	}	622	}
495		623
496	SvREFCNT_dec (req->sv1);	624	SvREFCNT_dec (req->sv1);
497	SvREFCNT_dec (req->sv2);	625	SvREFCNT_dec (req->sv2);
		626	SvREFCNT_dec (req->sv3);
		627	SvREFCNT_dec (req->sv4);
498	SvREFCNT_dec (req->callback);	628	SvREFCNT_dec (req->callback);
499		629
500	Safefree (req);	630	free (req);
501	}	631	}
502		632
		633	static void
503	static void req_cancel_subs (aio_req grp)	634	req_cancel_subs (aio_req grp)
504	{	635	{
505	aio_req sub;
506
507	if (grp->type != EIO_GROUP)	636	if (grp->type != EIO_GROUP)
508	return;	637	return;
509		638
510	SvREFCNT_dec (grp->sv2);	639	SvREFCNT_dec (grp->sv2);
511	grp->sv2 = 0;	640	grp->sv2 = 0;
512		641
513	eio_grp_cancel (grp);	642	eio_grp_cancel (grp);
514	}	643	}
515		644
516	static void	645	static void ecb_cold
517	create_respipe (void)	646	create_respipe (void)
518	{	647	{
519	if (s_epipe_renew (&respipe))	648	if (s_epipe_renew (&respipe))
520	croak ("IO::AIO: unable to initialize result pipe");	649	croak ("IO::AIO: unable to initialize result pipe");
521	}	650	}
522		651
523	static void poll_wait (void)	652	static void
		653	poll_wait (void)
524	{	654	{
525	while (eio_nreqs ())	655	while (eio_nreqs ())
526	{	656	{
527	int size;	657	int size;
528		658
…		…
537		667
538	s_epipe_wait (&respipe);	668	s_epipe_wait (&respipe);
539	}	669	}
540	}	670	}
541		671
542	static int poll_cb (void)	672	static int
		673	poll_cb (void)
543	{	674	{
544	for (;;)	675	for (;;)
545	{	676	{
546	int res = eio_poll ();	677	int res = eio_poll ();
547		678
…		…
553		684
554	poll_wait ();	685	poll_wait ();
555	}	686	}
556	}	687	}
557		688
558	static void atfork_child (void)	689	static void ecb_cold
		690	reinit (void)
559	{	691	{
560	create_respipe ();	692	create_respipe ();
		693
		694	if (eio_init (want_poll, done_poll) < 0)
		695	croak ("IO::AIO: unable to initialise eio library");
561	}	696	}
		697
		698	/*****************************************************************************/
		699
		700	#if !_POSIX_MAPPED_FILES
		701	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		702	# define munmap(addr,length) (errno = ENOSYS, -1)
		703	#endif
		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
		714	#define MMAP_MAGIC PERL_MAGIC_ext
		715
		716	static int ecb_cold
		717	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		718	{
		719	int old_errno = errno;
		720	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		721	errno = old_errno;
		722
		723	mg->mg_obj = 0; /* just in case */
		724
		725	SvREADONLY_off (sv);
		726
		727	if (SvPVX (sv) != mg->mg_ptr)
		728	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		729
		730	SvCUR_set (sv, 0);
		731	SvPVX (sv) = 0;
		732	SvOK_off (sv);
		733
		734	return 0;
		735	}
		736
		737	static MGVTBL mmap_vtbl = {
		738	0, 0, 0, 0, mmap_free
		739	};
		740
		741	/*****************************************************************************/
562		742
563	static SV *	743	static SV *
564	get_cb (SV *cb_sv)	744	get_cb (SV *cb_sv)
565	{	745	{
566	SvGETMAGIC (cb_sv);	746	SvGETMAGIC (cb_sv);
567	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	747	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
568	}	748	}
569		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
570	#define dREQ \	770	#define dREQ \
571	SV *cb_cv; \	771	aio_req req = dreq (callback); \
572	aio_req req; \
573	int req_pri = next_pri; \
574	next_pri = EIO_PRI_DEFAULT; \
575	\
576	cb_cv = get_cb (callback); \
577	\
578	Newz (0, req, 1, eio_req); \
579	if (!req) \
580	croak ("out of memory during eio_req allocation"); \
581	\
582	req->callback = SvREFCNT_inc (cb_cv); \
583	req->pri = req_pri
584		772
585	#define REQ_SEND \	773	#define REQ_SEND \
586	PUTBACK; \	774	PUTBACK; \
587	req_submit (req); \	775	req_submit (req); \
588	SPAGAIN; \	776	SPAGAIN; \
589	\	777	\
590	if (GIMME_V != G_VOID) \	778	if (GIMME_V != G_VOID) \
591	XPUSHs (req_sv (req, aio_req_stash));	779	XPUSHs (req_sv (req, aio_req_stash));
592		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
593	MODULE = IO::AIO PACKAGE = IO::AIO	847	MODULE = IO::AIO PACKAGE = IO::AIO
594		848
595	PROTOTYPES: ENABLE	849	PROTOTYPES: ENABLE
596		850
597	BOOT:	851	BOOT:
598	{	852	{
599	static const struct {	853	static const struct {
600	const char *name;	854	const char *name;
601	IV iv;	855	IV iv;
602	} *civ, const_iv[] = {	856	} *civ, const_iv[] = {
603	# define const_iv(name, value) { # name, (IV) value },	857	# define const_niv(name, value) { # name, (IV) value },
		858	# define const_iv(name) { # name, (IV) name },
604	# define const_eio(name) { # name, (IV) EIO_ ## name },	859	# define const_eio(name) { # name, (IV) EIO_ ## name },
605	const_iv (EXDEV , EXDEV)	860
		861	/* you have to re-run ./gendef0 after adding/Removing any constants here */
		862
606	const_iv (ENOSYS , ENOSYS)	863	const_iv (ENOSYS)
		864	const_iv (EXDEV)
		865	const_iv (EBADR)
		866
607	const_iv (O_RDONLY, O_RDONLY)	867	const_iv (O_RDONLY)
608	const_iv (O_WRONLY, O_WRONLY)	868	const_iv (O_WRONLY)
		869	const_iv (O_RDWR)
609	const_iv (O_CREAT , O_CREAT)	870	const_iv (O_CREAT)
610	const_iv (O_TRUNC , O_TRUNC)	871	const_iv (O_TRUNC)
611	#ifndef _WIN32	872	const_iv (O_EXCL)
		873	const_iv (O_APPEND)
		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
612	const_iv (S_IFIFO , S_IFIFO)	891	const_iv (S_IFIFO)
613	#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
614	const_iv (FADV_NORMAL , POSIX_FADV_NORMAL)	901	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
615	const_iv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	902	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
616	const_iv (FADV_RANDOM , POSIX_FADV_RANDOM)	903	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
617	const_iv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	904	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
618	const_iv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	905	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
619	const_iv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	906	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
620		907
621	const_iv (ST_RDONLY , ST_RDONLY)	908	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
622	const_iv (ST_NOSUID , ST_NOSUID)	909	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
623	const_iv (ST_NODEV , ST_NODEV)	910	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
624	const_iv (ST_NOEXEC , ST_NOEXEC)	911	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		912	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		913
		914	const_iv (ST_RDONLY)
		915	const_iv (ST_NOSUID)
		916	const_iv (ST_NODEV)
		917	const_iv (ST_NOEXEC)
625	const_iv (ST_SYNCHRONOUS , ST_SYNCHRONOUS)	918	const_iv (ST_SYNCHRONOUS)
626	const_iv (ST_MANDLOCK , ST_MANDLOCK)	919	const_iv (ST_MANDLOCK)
627	const_iv (ST_WRITE , ST_WRITE)	920	const_iv (ST_WRITE)
628	const_iv (ST_APPEND , ST_APPEND)	921	const_iv (ST_APPEND)
629	const_iv (ST_IMMUTABLE , ST_IMMUTABLE)	922	const_iv (ST_IMMUTABLE)
630	const_iv (ST_NOATIME , ST_NOATIME)	923	const_iv (ST_NOATIME)
631	const_iv (ST_NODIRATIME , ST_NODIRATIME)	924	const_iv (ST_NODIRATIME)
632	const_iv (ST_RELATIME , ST_RELATIME)	925	const_iv (ST_RELATIME)
		926
		927	const_iv (PROT_NONE)
		928	const_iv (PROT_EXEC)
		929	const_iv (PROT_READ)
		930	const_iv (PROT_WRITE)
		931
		932	/*const_iv (MAP_FIXED)*/
		933	const_iv (MAP_PRIVATE)
		934	const_iv (MAP_SHARED)
		935	const_iv (MAP_ANONYMOUS)
		936
		937	/* linuxish */
		938	const_iv (MAP_HUGETLB)
		939	const_iv (MAP_LOCKED)
		940	const_iv (MAP_NORESERVE)
		941	const_iv (MAP_POPULATE)
		942	const_iv (MAP_NONBLOCK)
		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
		963	const_eio (MCL_FUTURE)
		964	const_eio (MCL_CURRENT)
633		965
634	const_eio (MS_ASYNC)	966	const_eio (MS_ASYNC)
635	const_eio (MS_INVALIDATE)	967	const_eio (MS_INVALIDATE)
636	const_eio (MS_SYNC)	968	const_eio (MS_SYNC)
637		969
638	const_eio (MT_MODIFY)	970	const_eio (MT_MODIFY)
639		971
640	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	972	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
641	const_eio (SYNC_FILE_RANGE_WRITE)	973	const_eio (SYNC_FILE_RANGE_WRITE)
642	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	974	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		975
		976	const_eio (FALLOC_FL_KEEP_SIZE)
643		977
644	const_eio (READDIR_DENTS)	978	const_eio (READDIR_DENTS)
645	const_eio (READDIR_DIRS_FIRST)	979	const_eio (READDIR_DIRS_FIRST)
646	const_eio (READDIR_STAT_ORDER)	980	const_eio (READDIR_STAT_ORDER)
647	const_eio (READDIR_FOUND_UNKNOWN)	981	const_eio (READDIR_FOUND_UNKNOWN)
…		…
658	};	992	};
659		993
660	aio_stash = gv_stashpv ("IO::AIO" , 1);	994	aio_stash = gv_stashpv ("IO::AIO" , 1);
661	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	995	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
662	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);
663		998
664	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--)
665	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1000	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
666		1001
667	create_respipe ();	1002	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
668		1003
669	if (eio_init (want_poll, done_poll) < 0)	1004	reinit ();
670	croak ("IO::AIO: unable to initialise eio library");
671
672	/* atfork child called in fifo order, so before eio's handler */
673	X_THREAD_ATFORK (0, 0, atfork_child);
674	}	1005	}
675		1006
676	void	1007	void
		1008	reinit ()
		1009	PROTOTYPE:
		1010
		1011	void
677	max_poll_reqs (int nreqs)	1012	max_poll_reqs (unsigned int nreqs)
678	PROTOTYPE: $	1013	PROTOTYPE: $
679	CODE:	1014	CODE:
680	eio_set_max_poll_reqs (nreqs);	1015	eio_set_max_poll_reqs (nreqs);
681		1016
682	void	1017	void
…		…
684	PROTOTYPE: $	1019	PROTOTYPE: $
685	CODE:	1020	CODE:
686	eio_set_max_poll_time (nseconds);	1021	eio_set_max_poll_time (nseconds);
687		1022
688	void	1023	void
689	min_parallel (int nthreads)	1024	min_parallel (unsigned int nthreads)
690	PROTOTYPE: $	1025	PROTOTYPE: $
691	CODE:	1026	CODE:
692	eio_set_min_parallel (nthreads);	1027	eio_set_min_parallel (nthreads);
693		1028
694	void	1029	void
695	max_parallel (int nthreads)	1030	max_parallel (unsigned int nthreads)
696	PROTOTYPE: $	1031	PROTOTYPE: $
697	CODE:	1032	CODE:
698	eio_set_max_parallel (nthreads);	1033	eio_set_max_parallel (nthreads);
699		1034
700	void	1035	void
701	max_idle (int nthreads)	1036	max_idle (unsigned int nthreads)
702	PROTOTYPE: $	1037	PROTOTYPE: $
703	CODE:	1038	CODE:
704	eio_set_max_idle (nthreads);	1039	eio_set_max_idle (nthreads);
705		1040
706	void	1041	void
		1042	idle_timeout (unsigned int seconds)
		1043	PROTOTYPE: $
		1044	CODE:
		1045	eio_set_idle_timeout (seconds);
		1046
		1047	void
707	max_outstanding (int maxreqs)	1048	max_outstanding (unsigned int maxreqs)
708	PROTOTYPE: $	1049	PROTOTYPE: $
709	CODE:	1050	CODE:
710	max_outstanding = maxreqs;	1051	max_outstanding = maxreqs;
711		1052
712	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
713	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)
714	PROTOTYPE: $$$;$
715	PPCODE:	1067	PPCODE:
716	{	1068	{
717	dREQ;	1069	dREQ;
718		1070
719	req->type = EIO_OPEN;	1071	req->type = EIO_OPEN;
720	req->sv1 = newSVsv (pathname);	1072	req_set_path1 (req, pathname);
721	req->ptr1 = SvPVbyte_nolen (req->sv1);
722	req->int1 = flags;	1073	req->int1 = flags;
723	req->int2 = mode;	1074	req->int2 = mode;
724		1075
725	REQ_SEND;	1076	REQ_SEND;
726	}	1077	}
727		1078
728	void	1079	void
729	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1080	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
730	PROTOTYPE: $;$
731	ALIAS:	1081	ALIAS:
732	aio_fsync = EIO_FSYNC	1082	aio_fsync = EIO_FSYNC
733	aio_fdatasync = EIO_FDATASYNC	1083	aio_fdatasync = EIO_FDATASYNC
		1084	aio_syncfs = EIO_SYNCFS
734	PPCODE:	1085	PPCODE:
735	{	1086	{
736	int fd = s_fileno_croak (fh, 0);	1087	int fd = s_fileno_croak (fh, 0);
737	dREQ;	1088	dREQ;
738		1089
739	req->type = ix;	1090	req->type = ix;
740	req->sv1 = newSVsv (fh);	1091	req->sv1 = newSVsv (fh);
741	req->int1 = fd;	1092	req->int1 = fd;
742		1093
743	REQ_SEND (req);	1094	REQ_SEND;
744	}	1095	}
745		1096
746	void	1097	void
747	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1098	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
748	PROTOTYPE: $$$$;$
749	PPCODE:	1099	PPCODE:
750	{	1100	{
751	int fd = s_fileno_croak (fh, 0);	1101	int fd = s_fileno_croak (fh, 0);
752	dREQ;	1102	dREQ;
753		1103
…		…
756	req->int1 = fd;	1106	req->int1 = fd;
757	req->offs = offset;	1107	req->offs = offset;
758	req->size = nbytes;	1108	req->size = nbytes;
759	req->int2 = flags;	1109	req->int2 = flags;
760		1110
761	REQ_SEND (req);	1111	REQ_SEND;
762	}	1112	}
763		1113
764	void	1114	void
765	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)
766	PROTOTYPE: $;$
767	PPCODE:	1116	PPCODE:
768	{	1117	{
769	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
770	int fd = s_fileno_croak (fh, 0);	1118	int fd = s_fileno_croak (fh, 0);
771	dREQ;	1119	dREQ;
772		1120
773	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))
774	{	1140	{
775	int pipefd [2];	1141	int pipefd [2];
776		1142
		1143	if (
		1144	#ifdef _WIN32
		1145	_pipe (pipefd, 1, _O_BINARY) < 0
		1146	#else
777	if (pipe (pipefd) < 0	1147	pipe (pipefd) < 0
778	|| close (pipefd [1]) < 0
779	|| 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	)
780	abort (); /*D*/	1152	abort (); /*D*/
781		1153
782	close_pipe = pipefd [0];	1154	close_fd = pipefd [0];
783	}	1155	}
784		1156
785	req->type = EIO_DUP2;	1157	req->type = EIO_DUP2;
786	req->int1 = close_pipe;	1158	req->int1 = close_fd;
787	req->sv2 = newSVsv (fh);	1159	req->sv2 = newSVsv (fh);
788	req->int2 = fd;	1160	req->int2 = fd;
789		1161
790	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;
791	}	1180	}
792		1181
793	void	1182	void
794	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)
795	ALIAS:	1184	ALIAS:
796	aio_read = EIO_READ	1185	aio_read = EIO_READ
797	aio_write = EIO_WRITE	1186	aio_write = EIO_WRITE
798	PROTOTYPE: $$$$$;$
799	PPCODE:	1187	PPCODE:
800	{	1188	{
801	STRLEN svlen;	1189	STRLEN svlen;
802	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1190	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
803	char *svptr = SvPVbyte (data, svlen);	1191	char *svptr = SvPVbyte (data, svlen);
…		…
843	REQ_SEND;	1231	REQ_SEND;
844	}	1232	}
845	}	1233	}
846		1234
847	void	1235	void
848	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1236	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)
849	PROTOTYPE: $$;$	1237	ALIAS:
		1238	aio_readlink = EIO_READLINK
		1239	aio_realpath = EIO_REALPATH
850	PPCODE:	1240	PPCODE:
851	{	1241	{
852	SV *data;
853	dREQ;	1242	dREQ;
854		1243
855	req->type = EIO_READLINK;	1244	req->type = ix;
856	req->sv1 = newSVsv (path);	1245	req_set_path1 (req, pathname);
857	req->ptr1 = SvPVbyte_nolen (req->sv1);
858		1246
859	REQ_SEND;	1247	REQ_SEND;
860	}	1248	}
861		1249
862	void	1250	void
863	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)
864	PROTOTYPE: $$$$;$
865	PPCODE:	1252	PPCODE:
866	{	1253	{
867	int ifd = s_fileno_croak (in_fh , 0);	1254	int ifd = s_fileno_croak (in_fh , 0);
868	int ofd = s_fileno_croak (out_fh, 1);	1255	int ofd = s_fileno_croak (out_fh, 1);
869	dREQ;	1256	dREQ;
…		…
879	REQ_SEND;	1266	REQ_SEND;
880	}	1267	}
881		1268
882	void	1269	void
883	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1270	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
884	PROTOTYPE: $$$;$
885	PPCODE:	1271	PPCODE:
886	{	1272	{
887	int fd = s_fileno_croak (fh, 0);	1273	int fd = s_fileno_croak (fh, 0);
888	dREQ;	1274	dREQ;
889		1275
…		…
904	aio_statvfs = EIO_STATVFS	1290	aio_statvfs = EIO_STATVFS
905	PPCODE:	1291	PPCODE:
906	{	1292	{
907	dREQ;	1293	dREQ;
908		1294
909	req->sv1 = newSVsv (fh_or_path);	1295	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
910
911	if (SvPOK (req->sv1))
912	{
913	req->type = ix;
914	req->ptr1 = SvPVbyte_nolen (req->sv1);
915	}
916	else
917	{
918	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
919	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
920	}
921		1296
922	REQ_SEND;	1297	REQ_SEND;
923	}	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
924		1315
925	void	1316	void
926	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)
927	PPCODE:	1318	PPCODE:
928	{	1319	{
929	dREQ;	1320	dREQ;
930		1321
931	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1322	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
932	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1323	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
933	req->sv1 = newSVsv (fh_or_path);	1324	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
934
935	if (SvPOK (req->sv1))
936	{
937	req->type = EIO_UTIME;
938	req->ptr1 = SvPVbyte_nolen (req->sv1);
939	}
940	else
941	{
942	req->type = EIO_FUTIME;
943	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
944	}
945		1325
946	REQ_SEND;	1326	REQ_SEND;
947	}	1327	}
948		1328
949	void	1329	void
950	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)
951	PPCODE:	1331	PPCODE:
952	{	1332	{
953	dREQ;	1333	dREQ;
954		1334
955	req->sv1 = newSVsv (fh_or_path);
956	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1335	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
957		1336	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
958	if (SvPOK (req->sv1))
959	{
960	req->type = EIO_TRUNCATE;
961	req->ptr1 = SvPVbyte_nolen (req->sv1);
962	}
963	else
964	{
965	req->type = EIO_FTRUNCATE;
966	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
967	}
968		1337
969	REQ_SEND;	1338	REQ_SEND;
970	}	1339	}
971		1340
972	void	1341	void
973	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)
974	ALIAS:
975	aio_chmod = EIO_CHMOD
976	aio_mkdir = EIO_MKDIR
977	PPCODE:	1343	PPCODE:
978	{	1344	{
979	dREQ;	1345	dREQ;
980		1346
981	req->int2 = mode;	1347	req->int2 = mode;
982	req->sv1 = newSVsv (fh_or_path);	1348	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
983
984	if (SvPOK (req->sv1))
985	{
986	req->type = ix;
987	req->ptr1 = SvPVbyte_nolen (req->sv1);
988	}
989	else
990	{
991	req->type = EIO_FCHMOD;
992	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
993	}
994		1349
995	REQ_SEND;	1350	REQ_SEND;
996	}	1351	}
997		1352
998	void	1353	void
…		…
1001	{	1356	{
1002	dREQ;	1357	dREQ;
1003		1358
1004	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1359	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1005	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1360	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1006	req->sv1 = newSVsv (fh_or_path);	1361	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1007
1008	if (SvPOK (req->sv1))
1009	{
1010	req->type = EIO_CHOWN;
1011	req->ptr1 = SvPVbyte_nolen (req->sv1);
1012	}
1013	else
1014	{
1015	req->type = EIO_FCHOWN;
1016	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1017	}
1018		1362
1019	REQ_SEND;	1363	REQ_SEND;
1020	}	1364	}
1021		1365
1022	void	1366	void
…		…
1024	PPCODE:	1368	PPCODE:
1025	{	1369	{
1026	dREQ;	1370	dREQ;
1027		1371
1028	req->type = EIO_READDIR;	1372	req->type = EIO_READDIR;
1029	req->sv1 = newSVsv (pathname);
1030	req->ptr1 = SvPVbyte_nolen (req->sv1);
1031	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1373	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1032		1374
1033	if (flags & EIO_READDIR_DENTS)	1375	if (flags & EIO_READDIR_DENTS)
1034	req->int1 |= EIO_READDIR_CUSTOM2;	1376	req->int1 |= EIO_READDIR_CUSTOM2;
1035		1377
		1378	req_set_path1 (req, pathname);
		1379
1036	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;
1037	}	1394	}
1038		1395
1039	void	1396	void
1040	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1397	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
1041	ALIAS:	1398	ALIAS:
…		…
1045	PPCODE:	1402	PPCODE:
1046	{	1403	{
1047	dREQ;	1404	dREQ;
1048		1405
1049	req->type = ix;	1406	req->type = ix;
1050	req->sv1 = newSVsv (pathname);	1407	req_set_path1 (req, pathname);
1051	req->ptr1 = SvPVbyte_nolen (req->sv1);
1052		1408
1053	REQ_SEND;	1409	REQ_SEND;
1054	}	1410	}
1055		1411
1056	void	1412	void
…		…
1059	aio_link = EIO_LINK	1415	aio_link = EIO_LINK
1060	aio_symlink = EIO_SYMLINK	1416	aio_symlink = EIO_SYMLINK
1061	aio_rename = EIO_RENAME	1417	aio_rename = EIO_RENAME
1062	PPCODE:	1418	PPCODE:
1063	{	1419	{
		1420	eio_wd wd2 = 0;
1064	dREQ;	1421	dREQ;
1065		1422
1066	req->type = ix;	1423	req->type = ix;
1067	req->sv1 = newSVsv (oldpath);	1424	req_set_path1 (req, oldpath);
1068	req->ptr1 = SvPVbyte_nolen (req->sv1);	1425	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1069	req->sv2 = newSVsv (newpath);	1426	req->int3 = (long)wd2;
1070	req->ptr2 = SvPVbyte_nolen (req->sv2);
1071		1427
1072	REQ_SEND;	1428	REQ_SEND;
1073	}	1429	}
1074		1430
1075	void	1431	void
…		…
1077	PPCODE:	1433	PPCODE:
1078	{	1434	{
1079	dREQ;	1435	dREQ;
1080		1436
1081	req->type = EIO_MKNOD;	1437	req->type = EIO_MKNOD;
1082	req->sv1 = newSVsv (pathname);
1083	req->ptr1 = SvPVbyte_nolen (req->sv1);
1084	req->int2 = (mode_t)mode;	1438	req->int2 = (mode_t)mode;
1085	req->offs = dev;	1439	req->offs = dev;
		1440	req_set_path1 (req, pathname);
1086		1441
1087	REQ_SEND;	1442	REQ_SEND;
1088	}	1443	}
1089		1444
1090	void	1445	void
1091	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)
1092	ALIAS:	1447	ALIAS:
1093	aio_mtouch = EIO_MTOUCH	1448	aio_mtouch = EIO_MTOUCH
1094	aio_msync = EIO_MSYNC	1449	aio_msync = EIO_MSYNC
1095	PROTOTYPE: $$$$;$
1096	PPCODE:	1450	PPCODE:
1097	{	1451	{
1098	STRLEN svlen;	1452	STRLEN svlen;
		1453	char *svptr = SvPVbyte (data, svlen);
1099	UV len = SvUV (length);	1454	UV len = SvUV (length);
1100	char *svptr = SvPVbyte (data, svlen);
1101		1455
1102	if (offset < 0)	1456	if (offset < 0)
1103	offset += svlen;	1457	offset += svlen;
1104		1458
1105	if (offset < 0 || offset > svlen)	1459	if (offset < 0 || offset > svlen)
…		…
1110		1464
1111	{	1465	{
1112	dREQ;	1466	dREQ;
1113		1467
1114	req->type = ix;	1468	req->type = ix;
1115	req->size = len;
1116	req->sv2 = SvREFCNT_inc (data);	1469	req->sv2 = SvREFCNT_inc (data);
1117	req->ptr2 = (char *)svptr + offset;	1470	req->ptr2 = (char *)svptr + offset;
		1471	req->size = len;
1118	req->int1 = flags;	1472	req->int1 = flags;
1119		1473
1120	REQ_SEND;	1474	REQ_SEND;
1121	}	1475	}
1122	}	1476	}
1123		1477
1124	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
1125	aio_busy (double delay, SV *callback=&PL_sv_undef)	1541	aio_busy (double delay, SV *callback=&PL_sv_undef)
1126	PPCODE:	1542	PPCODE:
1127	{	1543	{
1128	dREQ;	1544	dREQ;
1129		1545
…		…
1133	REQ_SEND;	1549	REQ_SEND;
1134	}	1550	}
1135		1551
1136	void	1552	void
1137	aio_group (SV *callback=&PL_sv_undef)	1553	aio_group (SV *callback=&PL_sv_undef)
1138	PROTOTYPE: ;$
1139	PPCODE:	1554	PPCODE:
1140	{	1555	{
1141	dREQ;	1556	dREQ;
1142		1557
1143	req->type = EIO_GROUP;	1558	req->type = EIO_GROUP;
…		…
1160	REQ_SEND;	1575	REQ_SEND;
1161	}	1576	}
1162		1577
1163	int	1578	int
1164	aioreq_pri (int pri = 0)	1579	aioreq_pri (int pri = 0)
1165	PROTOTYPE: ;$
1166	CODE:	1580	CODE:
1167	RETVAL = next_pri;	1581	RETVAL = next_pri;
1168	if (items > 0)	1582	if (items > 0)
1169	{	1583	{
1170	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1584	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1182	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1596	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1183	next_pri = nice;	1597	next_pri = nice;
1184		1598
1185	void	1599	void
1186	flush ()	1600	flush ()
1187	PROTOTYPE:
1188	CODE:	1601	CODE:
1189	while (eio_nreqs ())	1602	while (eio_nreqs ())
1190	{	1603	{
1191	poll_wait ();	1604	poll_wait ();
1192	poll_cb ();	1605	poll_cb ();
1193	}	1606	}
1194		1607
1195	int	1608	int
1196	poll()	1609	poll ()
1197	PROTOTYPE:
1198	CODE:	1610	CODE:
1199	poll_wait ();	1611	poll_wait ();
1200	RETVAL = poll_cb ();	1612	RETVAL = poll_cb ();
1201	OUTPUT:	1613	OUTPUT:
1202	RETVAL	1614	RETVAL
1203		1615
1204	int	1616	int
1205	poll_fileno()	1617	poll_fileno ()
1206	PROTOTYPE:
1207	CODE:	1618	CODE:
1208	RETVAL = s_epipe_fd (&respipe);	1619	RETVAL = s_epipe_fd (&respipe);
1209	OUTPUT:	1620	OUTPUT:
1210	RETVAL	1621	RETVAL
1211		1622
1212	int	1623	int
1213	poll_cb(...)	1624	poll_cb (...)
1214	PROTOTYPE:	1625	PROTOTYPE:
1215	CODE:	1626	CODE:
1216	RETVAL = poll_cb ();	1627	RETVAL = poll_cb ();
1217	OUTPUT:	1628	OUTPUT:
1218	RETVAL	1629	RETVAL
1219		1630
1220	void	1631	void
1221	poll_wait()	1632	poll_wait ()
1222	PROTOTYPE:
1223	CODE:	1633	CODE:
1224	poll_wait ();	1634	poll_wait ();
1225		1635
1226	int	1636	int
1227	nreqs()	1637	nreqs ()
1228	PROTOTYPE:
1229	CODE:	1638	CODE:
1230	RETVAL = eio_nreqs ();	1639	RETVAL = eio_nreqs ();
1231	OUTPUT:	1640	OUTPUT:
1232	RETVAL	1641	RETVAL
1233		1642
1234	int	1643	int
1235	nready()	1644	nready ()
1236	PROTOTYPE:
1237	CODE:	1645	CODE:
1238	RETVAL = eio_nready ();	1646	RETVAL = eio_nready ();
1239	OUTPUT:	1647	OUTPUT:
1240	RETVAL	1648	RETVAL
1241		1649
1242	int	1650	int
1243	npending()	1651	npending ()
1244	PROTOTYPE:
1245	CODE:	1652	CODE:
1246	RETVAL = eio_npending ();	1653	RETVAL = eio_npending ();
1247	OUTPUT:	1654	OUTPUT:
1248	RETVAL	1655	RETVAL
1249		1656
1250	int	1657	int
1251	nthreads()	1658	nthreads ()
1252	PROTOTYPE:
1253	CODE:	1659	CODE:
1254	RETVAL = eio_nthreads ();	1660	RETVAL = eio_nthreads ();
1255	OUTPUT:	1661	OUTPUT:
1256	RETVAL	1662	RETVAL
1257		1663
1258	int	1664	int
1259	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)
1260	PROTOTYPE: $$$$
1261	CODE:	1666	CODE:
1262	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1263	RETVAL = posix_fadvise (fh, offset, length, advice);	1667	RETVAL = posix_fadvise (fh, offset, length, advice);
1264	#else
1265	RETVAL = errno = ENOSYS;
1266	#endif
1267	OUTPUT:	1668	OUTPUT:
1268	RETVAL	1669	RETVAL
1269		1670
1270	ssize_t	1671	IV
1271	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1672	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1272	PROTOTYPE: $$$$
1273	CODE:	1673	CODE:
1274	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1674	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1275	OUTPUT:	1675	OUTPUT:
1276	RETVAL	1676	RETVAL
1277		1677
		1678	void
		1679	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1680	PPCODE:
		1681	sv_unmagic (scalar, MMAP_MAGIC);
		1682	{
		1683	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1684	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1685	if (addr == (void *)-1)
		1686	XSRETURN_NO;
		1687
		1688	sv_force_normal (scalar);
		1689
		1690	/* we store the length in mg_obj, as namlen is I32 :/ */
		1691	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1692	->mg_obj = (SV *)length;
		1693
		1694	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1695
		1696	if (!(prot & PROT_WRITE))
		1697	SvREADONLY_on (scalar);
		1698
		1699	if (SvLEN (scalar))
		1700	Safefree (SvPVX (scalar));
		1701
		1702	SvPVX (scalar) = (char *)addr;
		1703	SvCUR_set (scalar, length);
		1704	SvLEN_set (scalar, 0);
		1705	SvPOK_only (scalar);
		1706
		1707	XSRETURN_YES;
		1708	}
		1709
		1710	void
		1711	munmap (SV *scalar)
		1712	CODE:
		1713	sv_unmagic (scalar, MMAP_MAGIC);
		1714
		1715	int
		1716	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1717	ALIAS:
		1718	mprotect = 1
		1719	CODE:
		1720	{
		1721	STRLEN svlen;
		1722	void *addr = SvPVbyte (scalar, svlen);
		1723	size_t len = SvUV (length);
		1724
		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)
		1732	len = svlen - offset;
		1733
		1734	addr = (void *)(((intptr_t)addr) + offset);
		1735	eio_page_align (&addr, &len);
		1736
		1737	switch (ix)
		1738	{
		1739	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1740	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1741	}
		1742	}
		1743	OUTPUT:
		1744	RETVAL
		1745
		1746	int
		1747	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		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);
		1765	#if _POSIX_MEMLOCK_RANGE
		1766	RETVAL = munlock (addr, len);
		1767	#else
		1768	RETVAL = ((errno = ENOSYS), -1);
		1769	#endif
		1770	}
		1771	OUTPUT:
		1772	RETVAL
		1773
		1774	int
		1775	munlockall ()
		1776	CODE:
		1777	#if _POSIX_MEMLOCK
		1778	munlockall ();
		1779	#else
		1780	RETVAL = -1;
		1781	errno = ENOSYS;
		1782	#endif
		1783	OUTPUT:
		1784	RETVAL
		1785
1278	void _on_next_submit (SV *cb)	1786	void _on_next_submit (SV *cb)
1279	CODE:	1787	CODE:
1280	SvREFCNT_dec (on_next_submit);	1788	SvREFCNT_dec (on_next_submit);
1281	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1789	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1282		1790
1283	PROTOTYPES: DISABLE	1791	PROTOTYPES: DISABLE
1284		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
1285	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	1821	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1286		1822
1287	void	1823	void
1288	cancel (aio_req_ornot req)	1824	cancel (aio_req_ornot req)
1289	CODE:	1825	CODE:

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