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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.162 by root, Sun Jan 10 23:05:12 2010 UTC vs.
Revision 1.246 by root, Fri Jun 23 21:43:51 2017 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
25	#if !_POSIX_MAPPED_FILES	24	/* the incompetent fool that created musl keeps __linux__, refuses
26	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	25	* to implement any linux standard apis, and also has no way to test
27	# define munmap(addr,length) (errno = ENOSYS, -1)	26	* for his broken iplementation. don't complain to me if this fails
		27	* for you.
		28	*/
		29	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		30	# include <linux/fs.h>
		31	# ifdef FS_IOC_FIEMAP
		32	# include <linux/types.h>
		33	# include <linux/fiemap.h>
		34	# define HAVE_FIEMAP 1
		35	# endif
28	#endif	36	#endif
29		37
30	/* perl namespace pollution */	38	/* perl namespace pollution */
31	#undef VERSION	39	#undef VERSION
32
33	#ifdef _WIN32
34
35	# define EIO_STRUCT_DIRENT Direntry_t
36	# undef malloc
37	# undef free
38
39	// perl overrides all those nice win32 functions
40	# undef open
41	# undef read
42	# undef write
43	# undef send
44	# undef recv
45	# undef stat
46	# undef fstat
47	# define lstat stat
48	# undef truncate
49	# undef ftruncate
50	# undef open
51	# undef close
52	# undef unlink
53	# undef rmdir
54	# undef rename
55	# undef lseek
56
57	# define chown(a,b,c) (errno = ENOSYS, -1)
58	# define fchown(a,b,c) (errno = ENOSYS, -1)
59	# define fchmod(a,b) (errno = ENOSYS, -1)
60	# define symlink(a,b) (errno = ENOSYS, -1)
61	# define readlink(a,b,c) (errno = ENOSYS, -1)
62	# define mknod(a,b,c) (errno = ENOSYS, -1)
63	# define truncate(a,b) (errno = ENOSYS, -1)
64	# define ftruncate(fd,o) chsize ((fd), (o))
65	# define fsync(fd) _commit (fd)
66	# define opendir(fd) (errno = ENOSYS, 0)
67	# define readdir(fd) (errno = ENOSYS, -1)
68	# define closedir(fd) (errno = ENOSYS, -1)
69	# define mkdir(a,b) mkdir (a)
70
71	#else
72
73	# include <sys/time.h>
74	# include <sys/select.h>
75	# include <unistd.h>
76	# include <utime.h>
77	# include <signal.h>
78	# define EIO_STRUCT_DIRENT struct dirent
79
80	#endif
81		40
82	/* perl stupidly overrides readdir and maybe others */	41	/* perl stupidly overrides readdir and maybe others */
83	/* with thread-unsafe versions, imagine that :( */	42	/* with thread-unsafe versions, imagine that :( */
84	#undef readdir	43	#undef readdir
85	#undef opendir	44	#undef opendir
86	#undef closedir	45	#undef closedir
87		46
		47	#ifdef _WIN32
		48
		49	// perl overrides all those nice libc functions
		50
		51	#undef malloc
		52	#undef free
		53	#undef open
		54	#undef read
		55	#undef write
		56	#undef send
		57	#undef recv
		58	#undef stat
		59	#undef lstat
		60	#undef fstat
		61	#undef truncate
		62	#undef ftruncate
		63	#undef open
		64	#undef link
		65	#undef close
		66	#undef unlink
		67	#undef mkdir
		68	#undef rmdir
		69	#undef rename
		70	#undef lseek
		71	#undef opendir
		72	#undef readdir
		73	#undef closedir
		74	#undef chmod
		75	#undef fchmod
		76	#undef dup
		77	#undef dup2
		78	#undef abort
		79	#undef pipe
		80
		81	#define EIO_STRUCT_STAT struct _stati64
88	#define EIO_STRUCT_STAT Stat_t	82	#define EIO_STRUCT_STATI64
89		83
90	/* use NV for 32 bit perls as it allows larger offsets */
91	#if IVSIZE >= 8
92	# define VAL64 IV
93	# define SvVAL64 SvIV
94	# define newSVval64 newSViv
95	#else	84	#else
96	# define VAL64 NV	85
97	# define SvVAL64 SvNV	86	#include <sys/time.h>
98	# define newSVval64 newSVnv	87	#include <sys/select.h>
		88	#include <unistd.h>
		89	#include <utime.h>
		90	#include <signal.h>
		91
		92	#define EIO_STRUCT_STAT Stat_t
		93
99	#endif	94	#endif
100		95
101	/*****************************************************************************/	96	/*****************************************************************************/
102		97
103	#if __GNUC__ >= 3	98	#if __GNUC__ >= 3
…		…
113		108
114	typedef SV SV8; /* byte-sv, used for argument-checking */	109	typedef SV SV8; /* byte-sv, used for argument-checking */
115	typedef int aio_rfd; /* read file desriptor */	110	typedef int aio_rfd; /* read file desriptor */
116	typedef int aio_wfd; /* write file descriptor */	111	typedef int aio_wfd; /* write file descriptor */
117		112
118	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
119		114
120	#define EIO_REQ_MEMBERS \	115	#define EIO_REQ_MEMBERS \
121	SV *callback; \	116	SV *callback; \
122	SV *sv1, *sv2; \	117	SV *sv1, *sv2; \
		118	SV *sv3, *sv4; \
123	STRLEN stroffset; \	119	STRLEN stroffset; \
124	SV *self;	120	SV *self;
125		121
126	#define EIO_NO_WRAPPERS 1	122	#define EIO_NO_WRAPPERS 1
127		123
		124	#include "libeio/config.h"
128	#include "libeio/eio.h"	125	#include "libeio/eio.h"
129		126
130	#ifndef POSIX_FADV_NORMAL	127	static int req_invoke (eio_req *req);
131	# define POSIX_FADV_NORMAL 0	128	#define EIO_FINISH(req) req_invoke (req)
132	# define NO_FADVISE 1	129	static void req_destroy (eio_req *grp);
133	#endif	130	#define EIO_DESTROY(req) req_destroy (req)
134	#ifndef POSIX_FADV_SEQUENTIAL
135	# define POSIX_FADV_SEQUENTIAL 0
136	#endif
137	#ifndef POSIX_FADV_RANDOM
138	# define POSIX_FADV_RANDOM 0
139	#endif
140	#ifndef POSIX_FADV_NOREUSE
141	# define POSIX_FADV_NOREUSE 0
142	#endif
143	#ifndef POSIX_FADV_WILLNEED
144	# define POSIX_FADV_WILLNEED 0
145	#endif
146	#ifndef POSIX_FADV_DONTNEED
147	# define POSIX_FADV_DONTNEED 0
148	#endif
149		131
150	#ifndef ST_NODEV	132	#include "libeio/eio.c"
151	# define ST_NODEV 0
152	#endif
153	#ifndef ST_NOEXEC
154	# define ST_NOEXEC 0
155	#endif
156	#ifndef ST_SYNCHRONOUS
157	# define ST_SYNCHRONOUS 0
158	#endif
159	#ifndef ST_MANDLOCK
160	# define ST_MANDLOCK 0
161	#endif
162	#ifndef ST_WRITE
163	# define ST_WRITE 0
164	#endif
165	#ifndef ST_APPEND
166	# define ST_APPEND 0
167	#endif
168	#ifndef ST_IMMUTABLE
169	# define ST_IMMUTABLE 0
170	#endif
171	#ifndef ST_NOATIME
172	# define ST_NOATIME 0
173	#endif
174	#ifndef ST_NODIRATIME
175	# define ST_NODIRATIME 0
176	#endif
177	#ifndef ST_RELATIME
178	# define ST_RELATIME 0
179	#endif
180		133
181	#ifndef MCL_CURRENT	134	#if !HAVE_POSIX_FADVISE
182	# define MCL_CURRENT 0	135	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
183	#endif	136	#endif
184	#ifndef MCL_FUTURE	137
185	# define MCL_FUTURE 0	138	#if !HAVE_POSIX_MADVISE
		139	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
186	#endif	140	#endif
187		141
188	#ifndef MAP_ANONYMOUS	142	#ifndef MAP_ANONYMOUS
189	# ifdef MAP_ANON	143	# ifdef MAP_ANON
190	# define MAP_ANONYMOUS MAP_ANON	144	# define MAP_ANONYMOUS MAP_ANON
191	# else	145	# else
192	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	146	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
193	# endif	147	# endif
194	#endif	148	#endif
195	#ifndef MAP_HUGETLB
196	# define MAP_HUGETLB 0
197	#endif
198	#ifndef MAP_LOCKED
199	# define MAP_LOCKED 0
200	#endif
201	#ifndef MAP_NORESERVE
202	# define MAP_NORESERVE 0
203	#endif
204	#ifndef MAP_POPULATE
205	# define MAP_POPULATE 0
206	#endif
207	#ifndef MAP_NONBLOCK
208	# define MAP_NONBLOCK 0
209	#endif
210		149
211	#ifndef PAGESIZE	150	/* defines all sorts of constants to 0 unless they are already defined */
		151	/* also provides const_iv_ and const_niv_ macros for them */
		152	#include "def0.h"
		153
		154	#ifndef makedev
		155	# define makedev(maj,min) (((maj) << 8) | (min))
		156	#endif
		157	#ifndef major
		158	# define major(dev) ((dev) >> 8)
		159	#endif
		160	#ifndef minor
		161	# define minor(dev) ((dev) & 0xff)
		162	#endif
		163
		164	#if PAGESIZE <= 0
212	# define PAGESIZE sysconf (_SC_PAGESIZE)	165	# define PAGESIZE sysconf (_SC_PAGESIZE)
213	#endif	166	#endif
214		167
215	static int req_invoke (eio_req *req);	168	/*****************************************************************************/
216	#define EIO_FINISH(req) req_invoke (req)	169
217	static void req_destroy (eio_req *grp);	170	static void
218	#define EIO_DESTROY(req) req_destroy (req)	171	fiemap (eio_req *req)
		172	{
		173	req->result = -1;
		174
		175	#if HAVE_FIEMAP
		176	/* assume some c99 */
		177	struct fiemap *fiemap = 0;
		178	size_t end_offset;
		179	int count = req->int3;
		180
		181	req->flags |= EIO_FLAG_PTR1_FREE;
		182
		183	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		184	/* increase in 3.5kb steps */
		185	if (count < 0)
		186	count = 8;
		187
		188	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		189	errno = ENOMEM;
		190	if (!fiemap)
		191	return;
		192
		193	req->ptr1 = fiemap;
		194
		195	fiemap->fm_start = req->offs;
		196	fiemap->fm_length = req->size;
		197	fiemap->fm_flags = req->int2;
		198	fiemap->fm_extent_count = count;
		199
		200	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		201	return;
		202
		203	if (req->int3 >= 0 /* not autosizing */
		204	|| !fiemap->fm_mapped_extents /* no more extents */
		205	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		206	goto done;
		207
		208	/* else we have to loop -
		209	* it would be tempting (actually I tried that first) to just query the
		210	* number of extents needed, but linux often feels like not returning all
		211	* extents, without telling us it left any out. this complicates
		212	* this quite a bit.
		213	*/
		214
		215	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		216
		217	for (;;)
		218	{
		219	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		220	char scratch[3072];
		221	struct fiemap *incmap = (struct fiemap *)scratch;
		222
		223	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		224	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		225	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		226	incmap->fm_flags = fiemap->fm_flags;
		227	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		228
		229	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		230	return;
		231
		232	if (!incmap->fm_mapped_extents)
		233	goto done;
		234
		235	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		236	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		237	errno = ENOMEM;
		238	if (!fiemap)
		239	return;
		240
		241	req->ptr1 = fiemap;
		242
		243	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		244	{
		245	struct fiemap_extent *e = incmap->fm_extents + count;
		246
		247	if (e->fe_logical + e->fe_length >= end_offset)
		248	goto done;
		249
		250	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		251
		252	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		253	goto done;
		254
		255	}
		256	}
		257
		258	done:
		259	req->result = 0;
		260
		261	#else
		262	errno = ENOSYS;
		263	#endif
		264	}
		265
		266	/*****************************************************************************/
219		267
220	enum {	268	enum {
221	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	269	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
222	};	270	};
223		271
224	#include "libeio/eio.c"
225
226	typedef eio_req *aio_req;	272	typedef eio_req *aio_req;
227	typedef eio_req *aio_req_ornot;	273	typedef eio_req *aio_req_ornot;
		274	typedef eio_wd aio_wd;
228		275
229	static SV *on_next_submit;	276	static SV *on_next_submit;
230	static int next_pri = EIO_PRI_DEFAULT;	277	static int next_pri = EIO_PRI_DEFAULT;
231	static int max_outstanding;	278	static int max_outstanding;
232		279
233	static s_epipe respipe;	280	static s_epipe respipe;
234		281
235	static void req_destroy (aio_req req);	282	static void req_destroy (aio_req req);
236	static void req_cancel (aio_req req);	283	static void req_cancel (aio_req req);
237		284
238	static void want_poll (void)	285	static void
		286	want_poll (void)
239	{	287	{
240	/* write a dummy byte to the pipe so fh becomes ready */	288	/* write a dummy byte to the pipe so fh becomes ready */
241	s_epipe_signal (&respipe);	289	s_epipe_signal (&respipe);
242	}	290	}
243		291
244	static void done_poll (void)	292	static void
		293	done_poll (void)
245	{	294	{
246	/* read any signals sent by the worker threads */	295	/* read any signals sent by the worker threads */
247	s_epipe_drain (&respipe);	296	s_epipe_drain (&respipe);
248	}	297	}
249		298
250	/* must be called at most once */	299	/* must be called at most once */
		300	static SV *
251	static SV *req_sv (aio_req req, HV *stash)	301	req_sv (aio_req req, HV *stash)
252	{	302	{
253	if (!req->self)	303	if (!req->self)
254	{	304	{
255	req->self = (SV *)newHV ();	305	req->self = (SV *)newHV ();
256	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	306	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
257	}	307	}
258		308
259	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	309	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
260	}	310	}
261		311
262	static aio_req SvAIO_REQ (SV *sv)	312	static SV *
		313	newSVaio_wd (aio_wd wd)
		314	{
		315	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		316	}
		317
		318	static aio_req
		319	SvAIO_REQ (SV *sv)
263	{	320	{
264	MAGIC *mg;	321	MAGIC *mg;
265		322
266	if (!SvROK (sv)	323	if (!SvROK (sv)
		324	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
267	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	325	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
268	&& SvSTASH (SvRV (sv)) != aio_req_stash	326	&& SvSTASH (SvRV (sv)) != aio_req_stash
269	&& !sv_derived_from (sv, "IO::AIO::REQ")))	327	&& !sv_derived_from (sv, "IO::AIO::REQ")))
270	croak ("object of class IO::AIO::REQ expected");	328	croak ("object of class IO::AIO::REQ expected");
271		329
272	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	330	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
273		331
274	return mg ? (aio_req)mg->mg_ptr : 0;	332	return mg ? (aio_req)mg->mg_ptr : 0;
275	}	333	}
276		334
		335	static aio_wd
		336	SvAIO_WD (SV *sv)
		337	{
		338	if (!SvROK (sv)
		339	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		340	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		341	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		342
		343	return (aio_wd)(long)SvIVX (SvRV (sv));
		344	}
		345
		346	static SV *
		347	newmortalFH (int fd, int flags)
		348	{
		349	if (fd < 0)
		350	return &PL_sv_undef;
		351
		352	GV *gv = (GV *)sv_newmortal ();
		353	char sym[64];
		354	int symlen;
		355
		356	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		357	gv_init (gv, aio_stash, sym, symlen, 0);
		358
		359	symlen = snprintf (
		360	sym,
		361	sizeof (sym),
		362	"%s&=%d",
		363	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		364	fd
		365	);
		366
		367	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		368	? (SV *)gv : &PL_sv_undef;
		369	}
		370
		371	static void
277	static void aio_grp_feed (aio_req grp)	372	aio_grp_feed (aio_req grp)
278	{	373	{
279	if (grp->sv2 && SvOK (grp->sv2))	374	if (grp->sv2 && SvOK (grp->sv2))
280	{	375	{
281	dSP;	376	dSP;
282		377
…		…
290	FREETMPS;	385	FREETMPS;
291	LEAVE;	386	LEAVE;
292	}	387	}
293	}	388	}
294		389
		390	static void
295	static void req_submit (eio_req *req)	391	req_submit (eio_req *req)
296	{	392	{
297	eio_submit (req);	393	eio_submit (req);
298		394
299	if (expect_false (on_next_submit))	395	if (expect_false (on_next_submit))
300	{	396	{
…		…
307	PUTBACK;	403	PUTBACK;
308	call_sv (cb, G_DISCARD | G_EVAL);	404	call_sv (cb, G_DISCARD | G_EVAL);
309	}	405	}
310	}	406	}
311		407
		408	static int
312	static int req_invoke (eio_req *req)	409	req_invoke (eio_req *req)
313	{	410	{
314	dSP;
315
316	if (req->flags & FLAG_SV2_RO_OFF)	411	if (req->flags & FLAG_SV2_RO_OFF)
317	SvREADONLY_off (req->sv2);	412	SvREADONLY_off (req->sv2);
318		413
319	if (!EIO_CANCELLED (req) && req->callback)	414	if (!EIO_CANCELLED (req) && req->callback)
320	{	415	{
		416	dSP;
		417	static SV *sv_result_cache; /* caches the result integer SV */
		418	SV *sv_result;
		419
321	ENTER;	420	ENTER;
322	SAVETMPS;	421	SAVETMPS;
323	PUSHMARK (SP);	422	PUSHMARK (SP);
324	EXTEND (SP, 1);	423	EXTEND (SP, 1);
325		424
		425	/* do not recreate the result IV from scratch each time */
		426	if (expect_true (sv_result_cache))
		427	{
		428	sv_result = sv_result_cache; sv_result_cache = 0;
		429	SvIV_set (sv_result, req->result);
		430	SvIOK_only (sv_result);
		431	}
		432	else
		433	{
		434	sv_result = newSViv (req->result);
		435	SvREADONLY_on (sv_result);
		436	}
		437
326	switch (req->type)	438	switch (req->type)
327	{	439	{
		440	case EIO_WD_OPEN:
		441	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		442	break;
		443
328	case EIO_READDIR:	444	case EIO_READDIR:
329	{	445	{
330	SV *rv = &PL_sv_undef;	446	SV *rv = &PL_sv_undef;
331		447
332	if (req->result >= 0)	448	if (req->result >= 0)
…		…
385	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	501	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
386	}	502	}
387	break;	503	break;
388		504
389	case EIO_OPEN:	505	case EIO_OPEN:
390	{	506	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
391	/* convert fd to fh */
392	SV *fh = &PL_sv_undef;
393
394	if (req->result >= 0)
395	{
396	GV *gv = (GV *)sv_newmortal ();
397	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
398	char sym [64];
399	int symlen;
400
401	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
402	gv_init (gv, aio_stash, sym, symlen, 0);
403
404	symlen = snprintf (
405	sym,
406	sizeof (sym),
407	"%s&=%d",
408	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
409	(int)req->result
410	);
411
412	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
413	fh = (SV *)gv;
414	}
415
416	PUSHs (fh);
417	}
418	break;	507	break;
419		508
420	case EIO_STATVFS:	509	case EIO_STATVFS:
421	case EIO_FSTATVFS:	510	case EIO_FSTATVFS:
422	{	511	{
423	SV *rv = &PL_sv_undef;	512	SV *rv = &PL_sv_undef;
424		513
		514	#ifndef _WIN32
425	if (req->result >= 0)	515	if (req->result >= 0)
426	{	516	{
427	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	517	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
428	HV *hv = newHV ();	518	HV *hv = newHV ();
		519	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		520	* chooses to make it a struct.
		521	*/
		522	unsigned long fsid = 0;
		523	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
429		524
430	rv = sv_2mortal (newRV_noinc ((SV *)hv));	525	rv = sv_2mortal (newRV_noinc ((SV *)hv));
431		526
432	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	527	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
433	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	528	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
435	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	530	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
436	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	531	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
437	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	532	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
438	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	533	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
439	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	534	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
440	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	535	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
441	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	536	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
442	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	537	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
443	}	538	}
		539	#endif
444		540
445	PUSHs (rv);	541	PUSHs (rv);
446	}	542	}
447		543
448	break;	544	break;
…		…
464	case EIO_NOP:	560	case EIO_NOP:
465	case EIO_BUSY:	561	case EIO_BUSY:
466	break;	562	break;
467		563
468	case EIO_READLINK:	564	case EIO_READLINK:
		565	case EIO_REALPATH:
469	if (req->result > 0)	566	if (req->result > 0)
470	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	567	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
471	break;	568	break;
472		569
473	case EIO_STAT:	570	case EIO_STAT:
474	case EIO_LSTAT:	571	case EIO_LSTAT:
475	case EIO_FSTAT:	572	case EIO_FSTAT:
476	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	573	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		574
477	PL_laststatval = req->result;	575	if (!(PL_laststatval = req->result))
		576	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
478	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	577	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
479	PUSHs (sv_2mortal (newSViv (req->result)));	578
		579	PUSHs (sv_result);
		580	break;
		581
		582	case EIO_SEEK:
		583	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
480	break;	584	break;
481		585
482	case EIO_READ:	586	case EIO_READ:
483	{	587	{
484	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	588	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
485	*SvEND (req->sv2) = 0;	589	*SvEND (req->sv2) = 0;
486	SvPOK_only (req->sv2);	590	SvPOK_only (req->sv2);
487	SvSETMAGIC (req->sv2);	591	SvSETMAGIC (req->sv2);
488	PUSHs (sv_2mortal (newSViv (req->result)));	592	PUSHs (sv_result);
489	}	593	}
490	break;	594	break;
491		595
492	case EIO_DUP2:	596	case EIO_CUSTOM:
		597	if (req->feed == fiemap)
		598	{
		599	#if HAVE_FIEMAP
		600	if (!req->result)
		601	{
		602	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		603
		604	if (fiemap->fm_extent_count)
		605	{
		606	AV *av = newAV ();
		607	int i;
		608
		609	while (fiemap->fm_mapped_extents)
		610	{
		611	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		612	AV *ext_av = newAV ();
		613
		614	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		615	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		616	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		617	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		618
		619	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		620	}
		621
		622	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		623	}
		624	else
		625	{
		626	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		627	PUSHs (sv_result);
		628	}
		629	}
		630	#endif
		631	}
		632	else
		633	PUSHs (sv_result);
		634	break;
		635
		636	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
493	if (req->result > 0)	637	if (req->result > 0)
494	req->result = 0;	638	SvIV_set (sv_result, 0);
495	/* FALLTHROUGH */	639	/* FALLTHROUGH */
496		640
497	default:	641	default:
498	PUSHs (sv_2mortal (newSViv (req->result)));	642	PUSHs (sv_result);
499	break;	643	break;
500	}	644	}
501		645
502	errno = req->errorno;	646	errno = req->errorno;
503		647
504	PUTBACK;	648	PUTBACK;
505	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	649	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
506	SPAGAIN;	650	SPAGAIN;
507		651
		652	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		653	SvREFCNT_dec (sv_result);
		654	else
		655	sv_result_cache = sv_result;
		656
508	FREETMPS;	657	FREETMPS;
509	LEAVE;	658	LEAVE;
510		659
511	PUTBACK;	660	PUTBACK;
512	}	661	}
513		662
514	return !!SvTRUE (ERRSV);	663	return !!SvTRUE (ERRSV);
515	}	664	}
516		665
		666	static void
517	static void req_destroy (aio_req req)	667	req_destroy (aio_req req)
518	{	668	{
519	if (req->self)	669	if (req->self)
520	{	670	{
521	sv_unmagic (req->self, PERL_MAGIC_ext);	671	sv_unmagic (req->self, PERL_MAGIC_ext);
522	SvREFCNT_dec (req->self);	672	SvREFCNT_dec (req->self);
523	}	673	}
524		674
525	SvREFCNT_dec (req->sv1);	675	SvREFCNT_dec (req->sv1);
526	SvREFCNT_dec (req->sv2);	676	SvREFCNT_dec (req->sv2);
		677	SvREFCNT_dec (req->sv3);
		678	SvREFCNT_dec (req->sv4);
527	SvREFCNT_dec (req->callback);	679	SvREFCNT_dec (req->callback);
528		680
529	Safefree (req);	681	free (req);
530	}	682	}
531		683
		684	static void
532	static void req_cancel_subs (aio_req grp)	685	req_cancel_subs (aio_req grp)
533	{	686	{
534	aio_req sub;
535
536	if (grp->type != EIO_GROUP)	687	if (grp->type != EIO_GROUP)
537	return;	688	return;
538		689
539	SvREFCNT_dec (grp->sv2);	690	SvREFCNT_dec (grp->sv2);
540	grp->sv2 = 0;	691	grp->sv2 = 0;
541		692
542	eio_grp_cancel (grp);	693	eio_grp_cancel (grp);
543	}	694	}
544		695
545	static void	696	static void ecb_cold
546	create_respipe (void)	697	create_respipe (void)
547	{	698	{
548	if (s_epipe_renew (&respipe))	699	if (s_epipe_renew (&respipe))
549	croak ("IO::AIO: unable to initialize result pipe");	700	croak ("IO::AIO: unable to initialize result pipe");
550	}	701	}
551		702
552	static void poll_wait (void)	703	static void
		704	poll_wait (void)
553	{	705	{
554	while (eio_nreqs ())	706	while (eio_nreqs ())
555	{	707	{
556	int size;	708	int size;
557		709
558	X_LOCK (reslock);	710	X_LOCK (EIO_POOL->reslock);
559	size = res_queue.size;	711	size = EIO_POOL->res_queue.size;
560	X_UNLOCK (reslock);	712	X_UNLOCK (EIO_POOL->reslock);
561		713
562	if (size)	714	if (size)
563	return;	715	return;
564		716
565	etp_maybe_start_thread ();	717	etp_maybe_start_thread (EIO_POOL);
566		718
567	s_epipe_wait (&respipe);	719	s_epipe_wait (&respipe);
568	}	720	}
569	}	721	}
570		722
571	static int poll_cb (void)	723	static int
		724	poll_cb (void)
572	{	725	{
573	for (;;)	726	for (;;)
574	{	727	{
575	int res = eio_poll ();	728	int res = eio_poll ();
576		729
…		…
582		735
583	poll_wait ();	736	poll_wait ();
584	}	737	}
585	}	738	}
586		739
587	static void atfork_child (void)	740	static void ecb_cold
		741	reinit (void)
588	{	742	{
589	create_respipe ();	743	create_respipe ();
		744
		745	if (eio_init (want_poll, done_poll) < 0)
		746	croak ("IO::AIO: unable to initialise eio library");
590	}	747	}
591		748
592	/*****************************************************************************/	749	/*****************************************************************************/
593		750
		751	#if !_POSIX_MAPPED_FILES
		752	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		753	# define munmap(addr,length) EIO_ENOSYS ()
		754	#endif
		755
		756	#if !_POSIX_MEMORY_PROTECTION
		757	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		758	#endif
		759
594	#define MMAP_MAGIC PERL_MAGIC_ext	760	#define MMAP_MAGIC PERL_MAGIC_ext
595		761
596	static int	762	static int ecb_cold
597	mmap_free (pTHX_ SV *sv, MAGIC *mg)	763	mmap_free (pTHX_ SV *sv, MAGIC *mg)
598	{	764	{
599	int old_errno = errno;	765	int old_errno = errno;
600	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	766	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
601	errno = old_errno;	767	errno = old_errno;
602		768
603	mg->mg_obj = 0; /* just in case */	769	mg->mg_obj = 0; /* just in case */
604		770
605	SvREADONLY_off (sv);	771	SvREADONLY_off (sv);
		772
		773	if (SvPVX (sv) != mg->mg_ptr)
		774	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		775
606	SvCUR_set (sv, 0);	776	SvCUR_set (sv, 0);
607	SvLEN_set (sv, 0);
608	SvPVX (sv) = 0;	777	SvPVX (sv) = 0;
609	SvOK_off (sv);	778	SvOK_off (sv);
610		779
611	return 0;	780	return 0;
612	}	781	}
…		…
622	{	791	{
623	SvGETMAGIC (cb_sv);	792	SvGETMAGIC (cb_sv);
624	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	793	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
625	}	794	}
626		795
		796	static aio_req ecb_noinline
		797	dreq (SV *callback)
		798	{
		799	SV *cb_cv;
		800	aio_req req;
		801	int req_pri = next_pri;
		802	next_pri = EIO_PRI_DEFAULT;
		803
		804	cb_cv = get_cb (callback);
		805
		806	req = calloc (sizeof (*req), 1);
		807	if (!req)
		808	croak ("out of memory during eio_req allocation");
		809
		810	req->callback = SvREFCNT_inc (cb_cv);
		811	req->pri = req_pri;
		812
		813	return req;
		814	}
		815
627	#define dREQ \	816	#define dREQ \
628	SV *cb_cv; \	817	aio_req req = dreq (callback); \
629	aio_req req; \
630	int req_pri = next_pri; \
631	next_pri = EIO_PRI_DEFAULT; \
632	\
633	cb_cv = get_cb (callback); \
634	\
635	Newz (0, req, 1, eio_req); \
636	if (!req) \
637	croak ("out of memory during eio_req allocation"); \
638	\
639	req->callback = SvREFCNT_inc (cb_cv); \
640	req->pri = req_pri
641		818
642	#define REQ_SEND \	819	#define REQ_SEND \
643	PUTBACK; \	820	PUTBACK; \
644	req_submit (req); \	821	req_submit (req); \
645	SPAGAIN; \	822	SPAGAIN; \
646	\	823	\
647	if (GIMME_V != G_VOID) \	824	if (GIMME_V != G_VOID) \
648	XPUSHs (req_sv (req, aio_req_stash));	825	XPUSHs (req_sv (req, aio_req_stash));
649		826
		827	ecb_inline void
		828	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		829	{
		830	if (expect_false (SvROK (path)))
		831	{
		832	SV *rv = SvRV (path);
		833	SV *wdob;
		834
		835	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		836	{
		837	path = AvARRAY (rv)[1];
		838	wdob = AvARRAY (rv)[0];
		839
		840	if (SvOK (wdob))
		841	{
		842	*wd = SvAIO_WD (wdob);
		843	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		844	}
		845	else
		846	*wd = EIO_INVALID_WD;
		847	}
		848	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		849	{
		850	*wd = (aio_wd)(long)SvIVX (rv);
		851	*wdsv = SvREFCNT_inc_NN (rv);
		852	*ptr = ".";
		853	return; /* path set to "." */
		854	}
		855	else
		856	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		857	}
		858
		859	*pathsv = newSVsv (path);
		860	*ptr = SvPVbyte_nolen (*pathsv);
		861	}
		862
		863	static void ecb_noinline
		864	req_set_path1 (aio_req req, SV *path)
		865	{
		866	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		867	}
		868
		869	static void ecb_noinline
		870	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		871	{
		872	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		873
		874	switch (SvTYPE (rv))
		875	{
		876	case SVt_PVIO:
		877	case SVt_PVLV:
		878	case SVt_PVGV:
		879	req->type = type_fh;
		880	req->sv1 = newSVsv (fh_or_path);
		881	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		882	break;
		883
		884	default:
		885	req->type = type_path;
		886	req_set_path1 (req, fh_or_path);
		887	break;
		888	}
		889	}
		890
		891	XS(boot_IO__AIO) ecb_cold;
		892
650	MODULE = IO::AIO PACKAGE = IO::AIO	893	MODULE = IO::AIO PACKAGE = IO::AIO
651		894
652	PROTOTYPES: ENABLE	895	PROTOTYPES: ENABLE
653		896
654	BOOT:	897	BOOT:
…		…
658	IV iv;	901	IV iv;
659	} *civ, const_iv[] = {	902	} *civ, const_iv[] = {
660	# define const_niv(name, value) { # name, (IV) value },	903	# define const_niv(name, value) { # name, (IV) value },
661	# define const_iv(name) { # name, (IV) name },	904	# define const_iv(name) { # name, (IV) name },
662	# define const_eio(name) { # name, (IV) EIO_ ## name },	905	# define const_eio(name) { # name, (IV) EIO_ ## name },
		906
		907	/* you have to re-run ./gendef0 after adding/removing any constants here */
		908	/* the first block can be undef if missing */
		909	const_iv (ENOSYS)
663	const_iv (EXDEV)	910	const_iv (EXDEV)
664	const_iv (ENOSYS)	911	const_iv (EBADR)
665	const_iv (O_RDONLY)	912
666	const_iv (O_WRONLY)	913	/* for lseek */
667	const_iv (O_CREAT)	914	const_iv (SEEK_DATA)
668	const_iv (O_TRUNC)
669	#ifndef _WIN32
670	const_iv (S_IFIFO)	915	const_iv (SEEK_HOLE)
671	#endif	916
672	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	917	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
673	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	918	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
674	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	919	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
675	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	920	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
676	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	921	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
677	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	922	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		923
		924	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		925	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		926	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		927	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		928	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		929	const_niv (MADV_FREE , POSIX_MADV_FREE)
		930
		931	/* the second block will be 0 when missing */
		932	const_iv (O_RDONLY)
		933	const_iv (O_WRONLY)
		934	const_iv (O_RDWR)
		935	const_iv (O_CREAT)
		936	const_iv (O_TRUNC)
		937	const_iv (O_EXCL)
		938	const_iv (O_APPEND)
		939
		940	const_iv (O_ASYNC)
		941	const_iv (O_DIRECT)
		942	const_iv (O_NOATIME)
		943
		944	const_iv (O_CLOEXEC)
		945	const_iv (O_NOCTTY)
		946	const_iv (O_NOFOLLOW)
		947	const_iv (O_NONBLOCK)
		948	const_iv (O_EXEC)
		949	const_iv (O_SEARCH)
		950	const_iv (O_DIRECTORY)
		951	const_iv (O_DSYNC)
		952	const_iv (O_RSYNC)
		953	const_iv (O_SYNC)
		954	const_iv (O_PATH)
		955	const_iv (O_TMPFILE)
		956	const_iv (O_TTY_INIT)
		957
		958	const_iv (S_IFIFO)
		959	const_iv (S_IFCHR)
		960	const_iv (S_IFBLK)
		961	const_iv (S_IFLNK)
		962	const_iv (S_IFREG)
		963	const_iv (S_IFDIR)
		964	const_iv (S_IFWHT)
		965	const_iv (S_IFSOCK)
		966	const_iv (S_IFMT)
678		967
679	const_iv (ST_RDONLY)	968	const_iv (ST_RDONLY)
680	const_iv (ST_NOSUID)	969	const_iv (ST_NOSUID)
681	const_iv (ST_NODEV)	970	const_iv (ST_NODEV)
682	const_iv (ST_NOEXEC)	971	const_iv (ST_NOEXEC)
…		…
687	const_iv (ST_IMMUTABLE)	976	const_iv (ST_IMMUTABLE)
688	const_iv (ST_NOATIME)	977	const_iv (ST_NOATIME)
689	const_iv (ST_NODIRATIME)	978	const_iv (ST_NODIRATIME)
690	const_iv (ST_RELATIME)	979	const_iv (ST_RELATIME)
691		980
		981	const_iv (PROT_NONE)
692	const_iv (PROT_EXEC)	982	const_iv (PROT_EXEC)
693	const_iv (PROT_NONE)
694	const_iv (PROT_READ)	983	const_iv (PROT_READ)
695	const_iv (PROT_WRITE)	984	const_iv (PROT_WRITE)
696		985
697	/*const_iv (MAP_FIXED)*/
698	const_iv (MAP_PRIVATE)	986	const_iv (MAP_PRIVATE)
699	const_iv (MAP_SHARED)	987	const_iv (MAP_SHARED)
		988	const_iv (MAP_FIXED)
700	const_iv (MAP_ANONYMOUS)	989	const_iv (MAP_ANONYMOUS)
701		990
702	/* linuxish */	991	/* linuxish */
703	const_iv (MAP_HUGETLB)
704	const_iv (MAP_LOCKED)	992	const_iv (MAP_LOCKED)
705	const_iv (MAP_NORESERVE)	993	const_iv (MAP_NORESERVE)
706	const_iv (MAP_POPULATE)	994	const_iv (MAP_POPULATE)
707	const_iv (MAP_NONBLOCK)	995	const_iv (MAP_NONBLOCK)
		996	const_iv (MAP_GROWSDOWN)
		997	const_iv (MAP_32BIT)
		998	const_iv (MAP_HUGETLB)
		999	const_iv (MAP_STACK)
708		1000
		1001	const_iv (F_DUPFD_CLOEXEC)
		1002
		1003	const_iv (F_OFD_GETLK)
		1004	const_iv (F_OFD_SETLK)
		1005	const_iv (F_OFD_GETLKW)
		1006
		1007	const_iv (FIFREEZE)
		1008	const_iv (FITHAW)
		1009	const_iv (FITRIM)
		1010	const_iv (FICLONE)
		1011	const_iv (FICLONERANGE)
		1012	const_iv (FIDEDUPERANGE)
		1013
		1014	const_iv (FS_IOC_GETFLAGS)
		1015	const_iv (FS_IOC_SETFLAGS)
		1016	const_iv (FS_IOC_GETVERSION)
		1017	const_iv (FS_IOC_SETVERSION)
		1018	const_iv (FS_IOC_FIEMAP)
		1019	const_iv (FS_IOC_FSGETXATTR)
		1020	const_iv (FS_IOC_FSSETXATTR)
		1021	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1022	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1023	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1024
		1025	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1026
		1027	const_iv (FS_SECRM_FL)
		1028	const_iv (FS_UNRM_FL)
		1029	const_iv (FS_COMPR_FL)
		1030	const_iv (FS_SYNC_FL)
		1031	const_iv (FS_IMMUTABLE_FL)
		1032	const_iv (FS_APPEND_FL)
		1033	const_iv (FS_NODUMP_FL)
		1034	const_iv (FS_NOATIME_FL)
		1035	const_iv (FS_DIRTY_FL)
		1036	const_iv (FS_COMPRBLK_FL)
		1037	const_iv (FS_NOCOMP_FL)
		1038	const_iv (FS_ENCRYPT_FL)
		1039	const_iv (FS_BTREE_FL)
		1040	const_iv (FS_INDEX_FL)
		1041	const_iv (FS_JOURNAL_DATA_FL)
		1042	const_iv (FS_NOTAIL_FL)
		1043	const_iv (FS_DIRSYNC_FL)
		1044	const_iv (FS_TOPDIR_FL)
		1045	const_iv (FS_FL_USER_MODIFIABLE)
		1046
		1047	const_iv (FS_XFLAG_REALTIME)
		1048	const_iv (FS_XFLAG_PREALLOC)
		1049	const_iv (FS_XFLAG_IMMUTABLE)
		1050	const_iv (FS_XFLAG_APPEND)
		1051	const_iv (FS_XFLAG_SYNC)
		1052	const_iv (FS_XFLAG_NOATIME)
		1053	const_iv (FS_XFLAG_NODUMP)
		1054	const_iv (FS_XFLAG_RTINHERIT)
		1055	const_iv (FS_XFLAG_PROJINHERIT)
		1056	const_iv (FS_XFLAG_NOSYMLINKS)
		1057	const_iv (FS_XFLAG_EXTSIZE)
		1058	const_iv (FS_XFLAG_EXTSZINHERIT)
		1059	const_iv (FS_XFLAG_NODEFRAG)
		1060	const_iv (FS_XFLAG_FILESTREAM)
		1061	const_iv (FS_XFLAG_DAX)
		1062	const_iv (FS_XFLAG_HASATTR)
		1063
		1064	const_iv (FIEMAP_FLAG_SYNC)
		1065	const_iv (FIEMAP_FLAG_XATTR)
		1066	const_iv (FIEMAP_FLAGS_COMPAT)
		1067	const_iv (FIEMAP_EXTENT_LAST)
		1068	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1069	const_iv (FIEMAP_EXTENT_DELALLOC)
		1070	const_iv (FIEMAP_EXTENT_ENCODED)
		1071	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1072	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1073	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1074	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1075	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1076	const_iv (FIEMAP_EXTENT_MERGED)
		1077	const_iv (FIEMAP_EXTENT_SHARED)
		1078
		1079	const_iv (SPLICE_F_MOVE)
		1080	const_iv (SPLICE_F_NONBLOCK)
		1081	const_iv (SPLICE_F_MORE)
		1082	const_iv (SPLICE_F_GIFT)
		1083
		1084	/* these are libeio constants, and are independent of gendef0 */
		1085	const_eio (SEEK_SET)
		1086	const_eio (SEEK_CUR)
		1087	const_eio (SEEK_END)
		1088
709	const_iv (MCL_FUTURE)	1089	const_eio (MCL_FUTURE)
710	const_iv (MCL_CURRENT)	1090	const_eio (MCL_CURRENT)
711		1091
712	const_eio (MS_ASYNC)	1092	const_eio (MS_ASYNC)
713	const_eio (MS_INVALIDATE)	1093	const_eio (MS_INVALIDATE)
714	const_eio (MS_SYNC)	1094	const_eio (MS_SYNC)
715		1095
716	const_eio (MT_MODIFY)	1096	const_eio (MT_MODIFY)
717		1097
718	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1098	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
719	const_eio (SYNC_FILE_RANGE_WRITE)	1099	const_eio (SYNC_FILE_RANGE_WRITE)
720	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1100	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1101
		1102	const_eio (FALLOC_FL_KEEP_SIZE)
		1103	const_eio (FALLOC_FL_PUNCH_HOLE)
		1104	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1105	const_eio (FALLOC_FL_ZERO_RANGE)
		1106
		1107	const_eio (RENAME_NOREPLACE)
		1108	const_eio (RENAME_EXCHANGE)
		1109	const_eio (RENAME_WHITEOUT)
721		1110
722	const_eio (READDIR_DENTS)	1111	const_eio (READDIR_DENTS)
723	const_eio (READDIR_DIRS_FIRST)	1112	const_eio (READDIR_DIRS_FIRST)
724	const_eio (READDIR_STAT_ORDER)	1113	const_eio (READDIR_STAT_ORDER)
725	const_eio (READDIR_FOUND_UNKNOWN)	1114	const_eio (READDIR_FOUND_UNKNOWN)
…		…
736	};	1125	};
737		1126
738	aio_stash = gv_stashpv ("IO::AIO" , 1);	1127	aio_stash = gv_stashpv ("IO::AIO" , 1);
739	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1128	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
740	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1129	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1130	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
741		1131
742	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1132	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
743	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1133	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
744		1134
745	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1135	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
746		1136
747	create_respipe ();	1137	reinit ();
748
749	if (eio_init (want_poll, done_poll) < 0)
750	croak ("IO::AIO: unable to initialise eio library");
751
752	/* atfork child called in fifo order, so before eio's handler */
753	X_THREAD_ATFORK (0, 0, atfork_child);
754	}	1138	}
755		1139
756	void	1140	void
		1141	reinit ()
		1142	PROTOTYPE:
		1143
		1144	void
757	max_poll_reqs (int nreqs)	1145	max_poll_reqs (unsigned int nreqs)
758	PROTOTYPE: $	1146	PROTOTYPE: $
759	CODE:	1147	CODE:
760	eio_set_max_poll_reqs (nreqs);	1148	eio_set_max_poll_reqs (nreqs);
761		1149
762	void	1150	void
…		…
764	PROTOTYPE: $	1152	PROTOTYPE: $
765	CODE:	1153	CODE:
766	eio_set_max_poll_time (nseconds);	1154	eio_set_max_poll_time (nseconds);
767		1155
768	void	1156	void
769	min_parallel (int nthreads)	1157	min_parallel (unsigned int nthreads)
770	PROTOTYPE: $	1158	PROTOTYPE: $
771	CODE:	1159	CODE:
772	eio_set_min_parallel (nthreads);	1160	eio_set_min_parallel (nthreads);
773		1161
774	void	1162	void
775	max_parallel (int nthreads)	1163	max_parallel (unsigned int nthreads)
776	PROTOTYPE: $	1164	PROTOTYPE: $
777	CODE:	1165	CODE:
778	eio_set_max_parallel (nthreads);	1166	eio_set_max_parallel (nthreads);
779		1167
780	void	1168	void
781	max_idle (int nthreads)	1169	max_idle (unsigned int nthreads)
782	PROTOTYPE: $	1170	PROTOTYPE: $
783	CODE:	1171	CODE:
784	eio_set_max_idle (nthreads);	1172	eio_set_max_idle (nthreads);
785		1173
786	void	1174	void
		1175	idle_timeout (unsigned int seconds)
		1176	PROTOTYPE: $
		1177	CODE:
		1178	eio_set_idle_timeout (seconds);
		1179
		1180	void
787	max_outstanding (int maxreqs)	1181	max_outstanding (unsigned int maxreqs)
788	PROTOTYPE: $	1182	PROTOTYPE: $
789	CODE:	1183	CODE:
790	max_outstanding = maxreqs;	1184	max_outstanding = maxreqs;
791		1185
792	void	1186	void
793	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1187	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
794	PROTOTYPE: $$$;$
795	PPCODE:	1188	PPCODE:
796	{	1189	{
797	dREQ;	1190	dREQ;
798		1191
		1192	req->type = EIO_WD_OPEN;
		1193	req_set_path1 (req, pathname);
		1194
		1195	REQ_SEND;
		1196	}
		1197
		1198	void
		1199	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1200	PPCODE:
		1201	{
		1202	dREQ;
		1203
799	req->type = EIO_OPEN;	1204	req->type = EIO_OPEN;
800	req->sv1 = newSVsv (pathname);	1205	req_set_path1 (req, pathname);
801	req->ptr1 = SvPVbyte_nolen (req->sv1);
802	req->int1 = flags;	1206	req->int1 = flags;
803	req->int2 = mode;	1207	req->int2 = mode;
804		1208
805	REQ_SEND;	1209	REQ_SEND;
806	}	1210	}
807		1211
808	void	1212	void
809	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1213	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
810	PROTOTYPE: $;$
811	ALIAS:	1214	ALIAS:
812	aio_fsync = EIO_FSYNC	1215	aio_fsync = EIO_FSYNC
813	aio_fdatasync = EIO_FDATASYNC	1216	aio_fdatasync = EIO_FDATASYNC
		1217	aio_syncfs = EIO_SYNCFS
814	PPCODE:	1218	PPCODE:
815	{	1219	{
816	int fd = s_fileno_croak (fh, 0);	1220	int fd = s_fileno_croak (fh, 0);
817	dREQ;	1221	dREQ;
818		1222
819	req->type = ix;	1223	req->type = ix;
820	req->sv1 = newSVsv (fh);	1224	req->sv1 = newSVsv (fh);
821	req->int1 = fd;	1225	req->int1 = fd;
822		1226
823	REQ_SEND (req);	1227	REQ_SEND;
824	}	1228	}
825		1229
826	void	1230	void
827	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1231	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
828	PROTOTYPE: $$$$;$
829	PPCODE:	1232	PPCODE:
830	{	1233	{
831	int fd = s_fileno_croak (fh, 0);	1234	int fd = s_fileno_croak (fh, 0);
832	dREQ;	1235	dREQ;
833		1236
834	req->type = EIO_SYNC_FILE_RANGE;	1237	req->type = EIO_SYNC_FILE_RANGE;
835	req->sv1 = newSVsv (fh);	1238	req->sv1 = newSVsv (fh);
836	req->int1 = fd;	1239	req->int1 = fd;
837	req->offs = offset;	1240	req->offs = offset;
838	req->size = nbytes;	1241	req->size = nbytes;
839	req->int2 = flags;	1242	req->int2 = flags;
840		1243
841	REQ_SEND (req);	1244	REQ_SEND;
842	}	1245	}
843		1246
844	void	1247	void
845	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1248	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
846	PROTOTYPE: $;$
847	PPCODE:	1249	PPCODE:
848	{	1250	{
849	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
850	int fd = s_fileno_croak (fh, 0);	1251	int fd = s_fileno_croak (fh, 0);
851	dREQ;	1252	dREQ;
852		1253
853	if (close_pipe < 0)	1254	req->type = EIO_FALLOCATE;
		1255	req->sv1 = newSVsv (fh);
		1256	req->int1 = fd;
		1257	req->int2 = mode;
		1258	req->offs = offset;
		1259	req->size = len;
		1260
		1261	REQ_SEND;
		1262	}
		1263
		1264	void
		1265	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1266	PPCODE:
		1267	{
		1268	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1269	int fd = s_fileno_croak (fh, 0);
		1270	dREQ;
		1271
		1272	if (expect_false (close_fd < 0))
854	{	1273	{
855	int pipefd [2];	1274	int pipefd [2];
856		1275
		1276	if (
		1277	#ifdef _WIN32
		1278	_pipe (pipefd, 1, _O_BINARY) < 0
		1279	#else
857	if (pipe (pipefd) < 0	1280	pipe (pipefd) < 0
858	|| close (pipefd [1]) < 0
859	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1281	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1282	#endif
		1283	|| close (pipefd [1]) < 0
		1284	)
860	abort (); /*D*/	1285	abort (); /*D*/
861		1286
862	close_pipe = pipefd [0];	1287	close_fd = pipefd [0];
863	}	1288	}
864		1289
865	req->type = EIO_DUP2;	1290	req->type = EIO_DUP2;
866	req->int1 = close_pipe;	1291	req->int1 = close_fd;
867	req->sv2 = newSVsv (fh);	1292	req->sv2 = newSVsv (fh);
868	req->int2 = fd;	1293	req->int2 = fd;
869		1294
870	REQ_SEND (req);	1295	REQ_SEND;
871	}	1296	}
872		1297
873	void	1298	void
		1299	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1300	PPCODE:
		1301	{
		1302	int fd = s_fileno_croak (fh, 0);
		1303	dREQ;
		1304
		1305	req->type = EIO_SEEK;
		1306	req->sv1 = newSVsv (fh);
		1307	req->int1 = fd;
		1308	req->offs = SvVAL64 (offset);
		1309	req->int2 = whence;
		1310
		1311	REQ_SEND;
		1312	}
		1313
		1314	void
874	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1315	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
875	ALIAS:	1316	ALIAS:
876	aio_read = EIO_READ	1317	aio_read = EIO_READ
877	aio_write = EIO_WRITE	1318	aio_write = EIO_WRITE
878	PROTOTYPE: $$$$$;$
879	PPCODE:	1319	PPCODE:
880	{	1320	{
881	STRLEN svlen;	1321	STRLEN svlen;
882	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1322	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
883	char *svptr = SvPVbyte (data, svlen);	1323	char *svptr = SvPVbyte (data, svlen);
…		…
896	len = svlen - dataoffset;	1336	len = svlen - dataoffset;
897	}	1337	}
898	else	1338	else
899	{	1339	{
900	/* read: check type and grow scalar as necessary */	1340	/* read: check type and grow scalar as necessary */
901	SvUPGRADE (data, SVt_PV);	1341	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
902	svptr = SvGROW (data, len + dataoffset + 1);	1342	svptr = sv_grow (data, len + dataoffset + 1);
		1343	else if (SvCUR (data) < len + dataoffset)
		1344	croak ("length + dataoffset outside of scalar, and cannot grow");
903	}	1345	}
904		1346
905	{	1347	{
906	dREQ;	1348	dREQ;
907		1349
…		…
923	REQ_SEND;	1365	REQ_SEND;
924	}	1366	}
925	}	1367	}
926		1368
927	void	1369	void
928	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1370	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
929	PROTOTYPE: $$;$	1371	ALIAS:
		1372	aio_ioctl = EIO_IOCTL
		1373	aio_fcntl = EIO_FCNTL
930	PPCODE:	1374	PPCODE:
931	{	1375	{
932	SV *data;	1376	int fd = s_fileno_croak (fh, 0);
		1377	char *svptr;
		1378
		1379	if (SvPOK (arg) || !SvNIOK (arg))
		1380	{
		1381	STRLEN svlen;
		1382	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1383	#ifdef IOCPARM_LEN
		1384	STRLEN need = IOCPARM_LEN (request);
		1385	#else
		1386	STRLEN need = 256;
		1387	#endif
		1388
		1389	if (svlen < need)
		1390	svptr = SvGROW (arg, need);
		1391	}
		1392	else
		1393	svptr = (char *)SvIV (arg);
		1394
		1395	{
		1396	dREQ;
		1397
		1398	req->type = ix;
		1399	req->sv1 = newSVsv (fh);
		1400	req->int1 = fd;
		1401	req->int2 = (long)request;
		1402	req->sv2 = SvREFCNT_inc (arg);
		1403	req->ptr2 = svptr;
		1404
		1405	REQ_SEND;
		1406	}
		1407	}
		1408
		1409	void
		1410	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1411	ALIAS:
		1412	aio_readlink = EIO_READLINK
		1413	aio_realpath = EIO_REALPATH
		1414	PPCODE:
		1415	{
933	dREQ;	1416	dREQ;
934		1417
935	req->type = EIO_READLINK;	1418	req->type = ix;
936	req->sv1 = newSVsv (path);	1419	req_set_path1 (req, pathname);
937	req->ptr1 = SvPVbyte_nolen (req->sv1);
938		1420
939	REQ_SEND;	1421	REQ_SEND;
940	}	1422	}
941		1423
942	void	1424	void
943	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1425	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
944	PROTOTYPE: $$$$;$
945	PPCODE:	1426	PPCODE:
946	{	1427	{
947	int ifd = s_fileno_croak (in_fh , 0);	1428	int ifd = s_fileno_croak (in_fh , 0);
948	int ofd = s_fileno_croak (out_fh, 1);	1429	int ofd = s_fileno_croak (out_fh, 1);
949	dREQ;	1430	dREQ;
950		1431
951	req->type = EIO_SENDFILE;	1432	req->type = EIO_SENDFILE;
952	req->sv1 = newSVsv (out_fh);	1433	req->sv1 = newSVsv (out_fh);
953	req->int1 = ofd;	1434	req->int1 = ofd;
…		…
958		1439
959	REQ_SEND;	1440	REQ_SEND;
960	}	1441	}
961		1442
962	void	1443	void
963	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1444	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
964	PROTOTYPE: $$$;$
965	PPCODE:	1445	PPCODE:
966	{	1446	{
967	int fd = s_fileno_croak (fh, 0);	1447	int fd = s_fileno_croak (fh, 0);
968	dREQ;	1448	dREQ;
969		1449
970	req->type = EIO_READAHEAD;	1450	req->type = EIO_READAHEAD;
971	req->sv1 = newSVsv (fh);	1451	req->sv1 = newSVsv (fh);
972	req->int1 = fd;	1452	req->int1 = fd;
…		…
975		1455
976	REQ_SEND;	1456	REQ_SEND;
977	}	1457	}
978		1458
979	void	1459	void
980	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1460	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
981	ALIAS:	1461	ALIAS:
982	aio_stat = EIO_STAT	1462	aio_stat = EIO_STAT
983	aio_lstat = EIO_LSTAT	1463	aio_lstat = EIO_LSTAT
984	aio_statvfs = EIO_STATVFS	1464	aio_statvfs = EIO_STATVFS
985	PPCODE:	1465	PPCODE:
986	{	1466	{
987	dREQ;	1467	dREQ;
988		1468
989	req->sv1 = newSVsv (fh_or_path);	1469	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
990
991	if (SvPOK (req->sv1))
992	{
993	req->type = ix;
994	req->ptr1 = SvPVbyte_nolen (req->sv1);
995	}
996	else
997	{
998	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
999	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1000	}
1001		1470
1002	REQ_SEND;	1471	REQ_SEND;
1003	}	1472	}
1004		1473
		1474	UV
		1475	major (UV dev)
		1476	ALIAS:
		1477	minor = 1
		1478	CODE:
		1479	RETVAL = ix ? minor (dev) : major (dev);
		1480	OUTPUT:
		1481	RETVAL
		1482
		1483	UV
		1484	makedev (UV maj, UV min)
		1485	CODE:
		1486	RETVAL = makedev (maj, min);
		1487	OUTPUT:
		1488	RETVAL
		1489
1005	void	1490	void
1006	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1491	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1007	PPCODE:	1492	PPCODE:
1008	{	1493	{
1009	dREQ;	1494	dREQ;
1010		1495
1011	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1496	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1012	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1497	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1013	req->sv1 = newSVsv (fh_or_path);	1498	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1014
1015	if (SvPOK (req->sv1))
1016	{
1017	req->type = EIO_UTIME;
1018	req->ptr1 = SvPVbyte_nolen (req->sv1);
1019	}
1020	else
1021	{
1022	req->type = EIO_FUTIME;
1023	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1024	}
1025		1499
1026	REQ_SEND;	1500	REQ_SEND;
1027	}	1501	}
1028		1502
1029	void	1503	void
1030	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1504	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1031	PPCODE:	1505	PPCODE:
1032	{	1506	{
1033	dREQ;	1507	dREQ;
1034		1508
1035	req->sv1 = newSVsv (fh_or_path);
1036	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1509	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1037		1510	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1038	if (SvPOK (req->sv1))
1039	{
1040	req->type = EIO_TRUNCATE;
1041	req->ptr1 = SvPVbyte_nolen (req->sv1);
1042	}
1043	else
1044	{
1045	req->type = EIO_FTRUNCATE;
1046	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1047	}
1048		1511
1049	REQ_SEND;	1512	REQ_SEND;
1050	}	1513	}
1051		1514
1052	void	1515	void
1053	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1516	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1054	ALIAS:
1055	aio_chmod = EIO_CHMOD
1056	aio_mkdir = EIO_MKDIR
1057	PPCODE:	1517	PPCODE:
1058	{	1518	{
1059	dREQ;	1519	dREQ;
1060		1520
1061	req->int2 = mode;	1521	req->int2 = mode;
1062	req->sv1 = newSVsv (fh_or_path);	1522	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1063
1064	if (SvPOK (req->sv1))
1065	{
1066	req->type = ix;
1067	req->ptr1 = SvPVbyte_nolen (req->sv1);
1068	}
1069	else
1070	{
1071	req->type = EIO_FCHMOD;
1072	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1073	}
1074		1523
1075	REQ_SEND;	1524	REQ_SEND;
1076	}	1525	}
1077		1526
1078	void	1527	void
1079	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1528	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1080	PPCODE:	1529	PPCODE:
1081	{	1530	{
1082	dREQ;	1531	dREQ;
1083		1532
1084	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1533	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1085	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1534	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1086	req->sv1 = newSVsv (fh_or_path);	1535	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1087
1088	if (SvPOK (req->sv1))
1089	{
1090	req->type = EIO_CHOWN;
1091	req->ptr1 = SvPVbyte_nolen (req->sv1);
1092	}
1093	else
1094	{
1095	req->type = EIO_FCHOWN;
1096	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1097	}
1098		1536
1099	REQ_SEND;	1537	REQ_SEND;
1100	}	1538	}
1101		1539
1102	void	1540	void
1103	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1541	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1104	PPCODE:	1542	PPCODE:
1105	{	1543	{
1106	dREQ;	1544	dREQ;
1107		1545
1108	req->type = EIO_READDIR;	1546	req->type = EIO_READDIR;
1109	req->sv1 = newSVsv (pathname);
1110	req->ptr1 = SvPVbyte_nolen (req->sv1);
1111	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1547	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1112		1548
1113	if (flags & EIO_READDIR_DENTS)	1549	if (flags & EIO_READDIR_DENTS)
1114	req->int1 |= EIO_READDIR_CUSTOM2;	1550	req->int1 |= EIO_READDIR_CUSTOM2;
1115		1551
		1552	req_set_path1 (req, pathname);
		1553
1116	REQ_SEND;	1554	REQ_SEND;
1117	}	1555	}
1118		1556
1119	void	1557	void
		1558	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1559	PPCODE:
		1560	{
		1561	dREQ;
		1562
		1563	req->type = EIO_MKDIR;
		1564	req->int2 = mode;
		1565	req_set_path1 (req, pathname);
		1566
		1567	REQ_SEND;
		1568	}
		1569
		1570	void
1120	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1571	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1121	ALIAS:	1572	ALIAS:
1122	aio_unlink = EIO_UNLINK	1573	aio_unlink = EIO_UNLINK
1123	aio_rmdir = EIO_RMDIR	1574	aio_rmdir = EIO_RMDIR
1124	aio_readdir = EIO_READDIR	1575	aio_readdir = EIO_READDIR
1125	PPCODE:	1576	PPCODE:
1126	{	1577	{
1127	dREQ;	1578	dREQ;
1128		1579
1129	req->type = ix;	1580	req->type = ix;
1130	req->sv1 = newSVsv (pathname);	1581	req_set_path1 (req, pathname);
1131	req->ptr1 = SvPVbyte_nolen (req->sv1);
1132		1582
1133	REQ_SEND;	1583	REQ_SEND;
1134	}	1584	}
1135		1585
1136	void	1586	void
1137	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1587	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1138	ALIAS:	1588	ALIAS:
1139	aio_link = EIO_LINK	1589	aio_link = EIO_LINK
1140	aio_symlink = EIO_SYMLINK	1590	aio_symlink = EIO_SYMLINK
1141	aio_rename = EIO_RENAME	1591	aio_rename = EIO_RENAME
1142	PPCODE:	1592	PPCODE:
1143	{	1593	{
		1594	eio_wd wd2 = 0;
1144	dREQ;	1595	dREQ;
1145		1596
1146	req->type = ix;	1597	req->type = ix;
1147	req->sv1 = newSVsv (oldpath);	1598	req_set_path1 (req, oldpath);
1148	req->ptr1 = SvPVbyte_nolen (req->sv1);	1599	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1149	req->sv2 = newSVsv (newpath);	1600	req->int3 = (long)wd2;
1150	req->ptr2 = SvPVbyte_nolen (req->sv2);
1151		1601
1152	REQ_SEND;	1602	REQ_SEND;
1153	}	1603	}
1154		1604
1155	void	1605	void
		1606	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1607	PPCODE:
		1608	{
		1609	eio_wd wd2 = 0;
		1610	dREQ;
		1611
		1612	req->type = EIO_RENAME;
		1613	req_set_path1 (req, oldpath);
		1614	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1615	req->int2 = flags;
		1616	req->int3 = (long)wd2;
		1617
		1618	REQ_SEND;
		1619	}
		1620
		1621	void
1156	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1622	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1157	PPCODE:	1623	PPCODE:
1158	{	1624	{
1159	dREQ;	1625	dREQ;
1160		1626
1161	req->type = EIO_MKNOD;	1627	req->type = EIO_MKNOD;
1162	req->sv1 = newSVsv (pathname);
1163	req->ptr1 = SvPVbyte_nolen (req->sv1);
1164	req->int2 = (mode_t)mode;	1628	req->int2 = (mode_t)mode;
1165	req->offs = dev;	1629	req->offs = dev;
		1630	req_set_path1 (req, pathname);
1166		1631
1167	REQ_SEND;	1632	REQ_SEND;
1168	}	1633	}
1169		1634
1170	void	1635	void
1171	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1636	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1172	ALIAS:	1637	ALIAS:
1173	aio_mtouch = EIO_MTOUCH	1638	aio_mtouch = EIO_MTOUCH
1174	aio_msync = EIO_MSYNC	1639	aio_msync = EIO_MSYNC
1175	PROTOTYPE: $$$$;$
1176	PPCODE:	1640	PPCODE:
1177	{	1641	{
1178	STRLEN svlen;	1642	STRLEN svlen;
		1643	char *svptr = SvPVbyte (data, svlen);
1179	UV len = SvUV (length);	1644	UV len = SvUV (length);
1180	char *svptr = SvPVbyte (data, svlen);	1645
		1646	if (flags < 0)
		1647	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1181		1648
1182	if (offset < 0)	1649	if (offset < 0)
1183	offset += svlen;	1650	offset += svlen;
1184		1651
1185	if (offset < 0 || offset > svlen)	1652	if (offset < 0 || offset > svlen)
…		…
1190		1657
1191	{	1658	{
1192	dREQ;	1659	dREQ;
1193		1660
1194	req->type = ix;	1661	req->type = ix;
1195	req->size = len;
1196	req->sv2 = SvREFCNT_inc (data);	1662	req->sv2 = SvREFCNT_inc (data);
1197	req->ptr2 = (char *)svptr + offset;	1663	req->ptr2 = (char *)svptr + offset;
		1664	req->size = len;
1198	req->int1 = flags;	1665	req->int1 = flags;
1199		1666
1200	REQ_SEND;	1667	REQ_SEND;
1201	}	1668	}
1202	}	1669	}
1203		1670
1204	void	1671	void
		1672	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1673	PPCODE:
		1674	{
		1675	STRLEN svlen;
		1676	char *svptr = SvPVbyte (data, svlen);
		1677	UV len = SvUV (length);
		1678
		1679	if (offset < 0)
		1680	offset += svlen;
		1681
		1682	if (offset < 0 || offset > svlen)
		1683	croak ("offset outside of scalar");
		1684
		1685	if (!SvOK (length) || len + offset > svlen)
		1686	len = svlen - offset;
		1687
		1688	{
		1689	dREQ;
		1690
		1691	req->type = EIO_MLOCK;
		1692	req->sv2 = SvREFCNT_inc (data);
		1693	req->ptr2 = (char *)svptr + offset;
		1694	req->size = len;
		1695
		1696	REQ_SEND;
		1697	}
		1698	}
		1699
		1700	void
		1701	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1702	PPCODE:
		1703	{
		1704	dREQ;
		1705
		1706	req->type = EIO_MLOCKALL;
		1707	req->int1 = flags;
		1708
		1709	REQ_SEND;
		1710	}
		1711
		1712	void
		1713	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1714	PPCODE:
		1715	{
		1716	int fd = s_fileno_croak (fh, 0);
		1717	dREQ;
		1718
		1719	req->type = EIO_CUSTOM;
		1720	req->sv1 = newSVsv (fh);
		1721	req->int1 = fd;
		1722
		1723	req->feed = fiemap;
		1724	#if HAVE_FIEMAP
		1725	/* keep our fingers crossed that the next two types are 64 bit */
		1726	req->offs = start;
		1727	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1728	req->int2 = flags;
		1729	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1730	#endif
		1731
		1732	REQ_SEND;
		1733	}
		1734
		1735	void
1205	aio_busy (double delay, SV *callback=&PL_sv_undef)	1736	aio_busy (double delay, SV *callback = &PL_sv_undef)
1206	PPCODE:	1737	PPCODE:
1207	{	1738	{
1208	dREQ;	1739	dREQ;
1209		1740
1210	req->type = EIO_BUSY;	1741	req->type = EIO_BUSY;
…		…
1212		1743
1213	REQ_SEND;	1744	REQ_SEND;
1214	}	1745	}
1215		1746
1216	void	1747	void
1217	aio_group (SV *callback=&PL_sv_undef)	1748	aio_group (SV *callback = &PL_sv_undef)
1218	PROTOTYPE: ;$
1219	PPCODE:	1749	PPCODE:
1220	{	1750	{
1221	dREQ;	1751	dREQ;
1222		1752
1223	req->type = EIO_GROUP;	1753	req->type = EIO_GROUP;
1224		1754
		1755	PUTBACK;
1225	req_submit (req);	1756	req_submit (req);
		1757	SPAGAIN;
		1758
1226	XPUSHs (req_sv (req, aio_grp_stash));	1759	XPUSHs (req_sv (req, aio_grp_stash));
1227	}	1760	}
1228		1761
1229	void	1762	void
1230	aio_nop (SV *callback=&PL_sv_undef)	1763	aio_nop (SV *callback = &PL_sv_undef)
1231	ALIAS:	1764	ALIAS:
1232	aio_nop = EIO_NOP	1765	aio_nop = EIO_NOP
1233	aio_sync = EIO_SYNC	1766	aio_sync = EIO_SYNC
1234	PPCODE:	1767	PPCODE:
1235	{	1768	{
…		…
1239		1772
1240	REQ_SEND;	1773	REQ_SEND;
1241	}	1774	}
1242		1775
1243	int	1776	int
1244	aioreq_pri (int pri = 0)	1777	aioreq_pri (int pri = NO_INIT)
1245	PROTOTYPE: ;$
1246	CODE:	1778	CODE:
1247	RETVAL = next_pri;	1779	RETVAL = next_pri;
1248	if (items > 0)	1780	if (items > 0)
1249	{	1781	{
1250	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1782	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1262	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1794	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1263	next_pri = nice;	1795	next_pri = nice;
1264		1796
1265	void	1797	void
1266	flush ()	1798	flush ()
1267	PROTOTYPE:
1268	CODE:	1799	CODE:
1269	while (eio_nreqs ())	1800	while (eio_nreqs ())
1270	{	1801	{
1271	poll_wait ();	1802	poll_wait ();
1272	poll_cb ();	1803	poll_cb ();
1273	}	1804	}
1274		1805
1275	int	1806	int
1276	poll()	1807	poll ()
1277	PROTOTYPE:
1278	CODE:	1808	CODE:
1279	poll_wait ();	1809	poll_wait ();
1280	RETVAL = poll_cb ();	1810	RETVAL = poll_cb ();
1281	OUTPUT:	1811	OUTPUT:
1282	RETVAL	1812	RETVAL
1283		1813
1284	int	1814	int
1285	poll_fileno()	1815	poll_fileno ()
1286	PROTOTYPE:
1287	CODE:	1816	CODE:
1288	RETVAL = s_epipe_fd (&respipe);	1817	RETVAL = s_epipe_fd (&respipe);
1289	OUTPUT:	1818	OUTPUT:
1290	RETVAL	1819	RETVAL
1291		1820
1292	int	1821	int
1293	poll_cb(...)	1822	poll_cb (...)
1294	PROTOTYPE:	1823	PROTOTYPE:
1295	CODE:	1824	CODE:
1296	RETVAL = poll_cb ();	1825	RETVAL = poll_cb ();
1297	OUTPUT:	1826	OUTPUT:
1298	RETVAL	1827	RETVAL
1299		1828
1300	void	1829	void
1301	poll_wait()	1830	poll_wait ()
1302	PROTOTYPE:
1303	CODE:	1831	CODE:
1304	poll_wait ();	1832	poll_wait ();
1305		1833
1306	int	1834	int
1307	nreqs()	1835	nreqs ()
1308	PROTOTYPE:
1309	CODE:	1836	CODE:
1310	RETVAL = eio_nreqs ();	1837	RETVAL = eio_nreqs ();
1311	OUTPUT:	1838	OUTPUT:
1312	RETVAL	1839	RETVAL
1313		1840
1314	int	1841	int
1315	nready()	1842	nready ()
1316	PROTOTYPE:
1317	CODE:	1843	CODE:
1318	RETVAL = eio_nready ();	1844	RETVAL = eio_nready ();
1319	OUTPUT:	1845	OUTPUT:
1320	RETVAL	1846	RETVAL
1321		1847
1322	int	1848	int
1323	npending()	1849	npending ()
1324	PROTOTYPE:
1325	CODE:	1850	CODE:
1326	RETVAL = eio_npending ();	1851	RETVAL = eio_npending ();
1327	OUTPUT:	1852	OUTPUT:
1328	RETVAL	1853	RETVAL
1329		1854
1330	int	1855	int
1331	nthreads()	1856	nthreads ()
1332	PROTOTYPE:
1333	CODE:	1857	CODE:
1334	RETVAL = eio_nthreads ();	1858	RETVAL = eio_nthreads ();
1335	OUTPUT:	1859	OUTPUT:
1336	RETVAL	1860	RETVAL
1337		1861
1338	int	1862	int
1339	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1863	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1340	PROTOTYPE: $$$$
1341	CODE:	1864	CODE:
1342	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1343	RETVAL = posix_fadvise (fh, offset, length, advice);	1865	RETVAL = posix_fadvise (fh, offset, length, advice);
1344	#else
1345	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1346	#endif
1347	OUTPUT:	1866	OUTPUT:
1348	RETVAL	1867	RETVAL
1349		1868
1350	ssize_t	1869	IV
1351	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1870	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1352	PROTOTYPE: $$$$
1353	CODE:	1871	CODE:
1354	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1872	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1355	OUTPUT:	1873	OUTPUT:
1356	RETVAL	1874	RETVAL
1357		1875
1358	void	1876	void
1359	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1877	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1360	PROTOTYPE: $$$$$;$
1361	PPCODE:	1878	PPCODE:
1362	sv_unmagic (scalar, MMAP_MAGIC);	1879	sv_unmagic (scalar, MMAP_MAGIC);
1363	{	1880	{
1364	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1881	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1365	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1882	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1366	if (addr == (void *)-1)	1883	if (addr == (void *)-1)
1367	XSRETURN_NO;	1884	XSRETURN_NO;
1368		1885
		1886	sv_force_normal (scalar);
		1887
1369	/* we store the length in mg_obj, as namlen is I32 :/ */	1888	/* we store the length in mg_obj, as namlen is I32 :/ */
1370	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)	1889	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1371	->mg_obj = (SV *)length;	1890	->mg_obj = (SV *)length;
1372		1891
1373	SvUPGRADE (scalar, SVt_PV); /* nop... */	1892	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1893
1374	if (!(prot & PROT_WRITE))	1894	if (!(prot & PROT_WRITE))
1375	SvREADONLY_on (scalar);	1895	SvREADONLY_on (scalar);
		1896
		1897	if (SvLEN (scalar))
		1898	Safefree (SvPVX (scalar));
1376		1899
1377	SvPVX (scalar) = (char *)addr;	1900	SvPVX (scalar) = (char *)addr;
1378	SvCUR_set (scalar, length);	1901	SvCUR_set (scalar, length);
1379	SvLEN_set (scalar, 0);	1902	SvLEN_set (scalar, 0);
1380	SvPOK_only (scalar);	1903	SvPOK_only (scalar);
…		…
1382	XSRETURN_YES;	1905	XSRETURN_YES;
1383	}	1906	}
1384		1907
1385	void	1908	void
1386	munmap (SV *scalar)	1909	munmap (SV *scalar)
1387	PROTOTYPE: $
1388	CODE:	1910	CODE:
1389	sv_unmagic (scalar, MMAP_MAGIC);	1911	sv_unmagic (scalar, MMAP_MAGIC);
1390		1912
1391	int	1913	int
1392	mlockall (int flags)	1914	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1393	PROTOTYPE: $	1915	ALIAS:
		1916	mprotect = 1
1394	CODE:	1917	CODE:
		1918	{
		1919	STRLEN svlen;
		1920	void *addr = SvPVbyte (scalar, svlen);
		1921	STRLEN len = SvUV (length);
		1922
		1923	if (offset < 0)
		1924	offset += svlen;
		1925
		1926	if (offset < 0 || offset > svlen)
		1927	croak ("offset outside of scalar");
		1928
		1929	if (!SvOK (length) || len + offset > svlen)
		1930	len = svlen - offset;
		1931
		1932	addr = (void *)(((intptr_t)addr) + offset);
		1933	eio_page_align (&addr, &len);
		1934
		1935	switch (ix)
		1936	{
		1937	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1938	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1939	}
		1940	}
		1941	OUTPUT:
		1942	RETVAL
		1943
		1944	int
		1945	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		1946	CODE:
		1947	{
		1948	STRLEN svlen;
		1949	void *addr = SvPVbyte (scalar, svlen);
		1950	size_t len = SvUV (length);
		1951
		1952	if (offset < 0)
		1953	offset += svlen;
		1954
		1955	if (offset < 0 || offset > svlen)
		1956	croak ("offset outside of scalar");
		1957
		1958	if (!SvOK (length) || len + offset > svlen)
		1959	len = svlen - offset;
		1960
		1961	addr = (void *)(((intptr_t)addr) + offset);
		1962	eio_page_align (&addr, &len);
1395	#if _POSIX_MEMLOCK	1963	#if _POSIX_MEMLOCK_RANGE
1396	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	1964	RETVAL = munlock (addr, len);
1397	extern int mallopt (int, int);
1398	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1399	#endif
1400	mlockall (flags);
1401	#else	1965	#else
1402	RETVAL = -1;	1966	RETVAL = EIO_ENOSYS ();
1403	errno = ENOSYS;
1404	#endif	1967	#endif
		1968	}
1405	OUTPUT:	1969	OUTPUT:
1406	RETVAL	1970	RETVAL
1407		1971
1408	int	1972	int
1409	munlockall ()	1973	munlockall ()
1410	PROTOTYPE:
1411	CODE:	1974	CODE:
1412	#if _POSIX_MEMLOCK	1975	#if _POSIX_MEMLOCK
1413	munlockall ();	1976	munlockall ();
1414	#else	1977	#else
1415	RETVAL = -1;	1978	RETVAL = EIO_ENOSYS ();
1416	errno = ENOSYS;
1417	#endif	1979	#endif
1418	OUTPUT:	1980	OUTPUT:
1419	RETVAL	1981	RETVAL
		1982
		1983	int
		1984	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1985	CODE:
		1986	{
		1987	#if HAVE_LINUX_SPLICE
		1988	loff_t off_in_, off_out_;
		1989	RETVAL = splice (
		1990	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1991	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1992	length, flags
		1993	);
		1994	#else
		1995	RETVAL = EIO_ENOSYS ();
		1996	#endif
		1997	}
		1998	OUTPUT:
		1999	RETVAL
		2000
		2001	int
		2002	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2003	CODE:
		2004	#if HAVE_LINUX_SPLICE
		2005	RETVAL = tee (rfh, wfh, length, flags);
		2006	#else
		2007	RETVAL = EIO_ENOSYS ();
		2008	#endif
		2009	OUTPUT:
		2010	RETVAL
		2011
		2012	int
		2013	pipesize (aio_rfd rfh, int new_size = -1)
		2014	PROTOTYPE: $;$
		2015	CODE:
		2016	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2017	if (new_size >= 0)
		2018	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2019	else
		2020	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2021	#else
		2022	errno = ENOSYS;
		2023	RETVAL = -1;
		2024	#endif
		2025	OUTPUT:
		2026	RETVAL
		2027
		2028	void
		2029	pipe2 (int flags = 0)
		2030	PROTOTYPE: ;$
		2031	PPCODE:
		2032	{
		2033	int fd[2];
		2034	int res;
		2035
		2036	if (flags)
		2037	#if HAVE_PIPE2
		2038	res = pipe2 (fd, flags);
		2039	#else
		2040	res = (errno = ENOSYS, -1);
		2041	#endif
		2042	else
		2043	res = pipe (fd);
		2044
		2045	if (!res)
		2046	{
		2047	EXTEND (SP, 2);
		2048	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2049	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2050	}
		2051	}
1420		2052
1421	void _on_next_submit (SV *cb)	2053	void _on_next_submit (SV *cb)
1422	CODE:	2054	CODE:
1423	SvREFCNT_dec (on_next_submit);	2055	SvREFCNT_dec (on_next_submit);
1424	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2056	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1425		2057
1426	PROTOTYPES: DISABLE	2058	PROTOTYPES: DISABLE
1427		2059
		2060	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2061
		2062	BOOT:
		2063	{
		2064	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2065	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2066	}
		2067
		2068	void
		2069	DESTROY (SV *self)
		2070	CODE:
		2071	{
		2072	aio_wd wd = SvAIO_WD (self);
		2073	#if HAVE_AT
		2074	{
		2075	SV *callback = &PL_sv_undef;
		2076	dREQ; /* clobbers next_pri :/ */
		2077	next_pri = req->pri; /* restore next_pri */
		2078	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2079	req->type = EIO_WD_CLOSE;
		2080	req->wd = wd;
		2081	REQ_SEND;
		2082	}
		2083	#else
		2084	eio_wd_close_sync (wd);
		2085	#endif
		2086	}
		2087
1428	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2088	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1429		2089
1430	void	2090	void
1431	cancel (aio_req_ornot req)	2091	cancel (aio_req_ornot req)
1432	CODE:	2092	CODE:
1433	eio_cancel (req);	2093	eio_cancel (req);
1434		2094
1435	void	2095	void
1436	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2096	cb (aio_req_ornot req, SV *callback = NO_INIT)
1437	PPCODE:	2097	PPCODE:
1438	{	2098	{
1439	if (GIMME_V != G_VOID)	2099	if (GIMME_V != G_VOID)
1440	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2100	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1441		2101
1442	if (items > 1)	2102	if (items > 1)
1443	{	2103	{
1444	SV *cb_cv =get_cb (callback);	2104	SV *cb_cv = get_cb (callback);
1445		2105
1446	SvREFCNT_dec (req->callback);	2106	SvREFCNT_dec (req->callback);
1447	req->callback = SvREFCNT_inc (cb_cv);	2107	req->callback = SvREFCNT_inc (cb_cv);
1448	}	2108	}
1449	}	2109	}
…		…
1506	limit (aio_req grp, int limit)	2166	limit (aio_req grp, int limit)
1507	CODE:	2167	CODE:
1508	eio_grp_limit (grp, limit);	2168	eio_grp_limit (grp, limit);
1509		2169
1510	void	2170	void
1511	feed (aio_req grp, SV *callback=&PL_sv_undef)	2171	feed (aio_req grp, SV *callback = &PL_sv_undef)
1512	CODE:	2172	CODE:
1513	{	2173	{
1514	SvREFCNT_dec (grp->sv2);	2174	SvREFCNT_dec (grp->sv2);
1515	grp->sv2 = newSVsv (callback);	2175	grp->sv2 = newSVsv (callback);
1516	grp->feed = aio_grp_feed;	2176	grp->feed = aio_grp_feed;

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