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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.168 by root, Wed Aug 4 14:02:58 2010 UTC vs.
Revision 1.250 by root, Fri Sep 22 05:20:39 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>
		22	#endif
		23
		24	/* the incompetent fool that created musl keeps __linux__, refuses
		25	* to implement any linux standard apis, and also has no way to test
		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
23	#endif	36	#endif
24		37
25	/* perl namespace pollution */	38	/* perl namespace pollution */
26	#undef VERSION	39	#undef VERSION
27
28	#ifdef _WIN32
29
30	# define EIO_STRUCT_DIRENT Direntry_t
31	# undef malloc
32	# undef free
33
34	// perl overrides all those nice win32 functions
35	# undef open
36	# undef read
37	# undef write
38	# undef send
39	# undef recv
40	# undef stat
41	# undef fstat
42	# define lstat stat
43	# undef truncate
44	# undef ftruncate
45	# undef open
46	# undef close
47	# undef unlink
48	# undef rmdir
49	# undef rename
50	# undef lseek
51
52	# define chown(a,b,c) (errno = ENOSYS, -1)
53	# define fchown(a,b,c) (errno = ENOSYS, -1)
54	# define fchmod(a,b) (errno = ENOSYS, -1)
55	# define symlink(a,b) (errno = ENOSYS, -1)
56	# define readlink(a,b,c) (errno = ENOSYS, -1)
57	# define mknod(a,b,c) (errno = ENOSYS, -1)
58	# define truncate(a,b) (errno = ENOSYS, -1)
59	# define ftruncate(fd,o) chsize ((fd), (o))
60	# define fsync(fd) _commit (fd)
61	# define opendir(fd) (errno = ENOSYS, 0)
62	# define readdir(fd) (errno = ENOSYS, -1)
63	# define closedir(fd) (errno = ENOSYS, -1)
64	# define mkdir(a,b) mkdir (a)
65
66	#else
67
68	# include <sys/time.h>
69	# include <sys/select.h>
70	# include <unistd.h>
71	# include <utime.h>
72	# include <signal.h>
73	# define EIO_STRUCT_DIRENT struct dirent
74
75	#endif
76		40
77	/* perl stupidly overrides readdir and maybe others */	41	/* perl stupidly overrides readdir and maybe others */
78	/* with thread-unsafe versions, imagine that :( */	42	/* with thread-unsafe versions, imagine that :( */
79	#undef readdir	43	#undef readdir
80	#undef opendir	44	#undef opendir
81	#undef closedir	45	#undef closedir
82		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
83	#define EIO_STRUCT_STAT Stat_t	82	#define EIO_STRUCT_STATI64
84		83
85	/* use NV for 32 bit perls as it allows larger offsets */
86	#if IVSIZE >= 8
87	# define VAL64 IV
88	# define SvVAL64 SvIV
89	# define newSVval64 newSViv
90	#else	84	#else
91	# define VAL64 NV	85
92	# define SvVAL64 SvNV	86	#include <sys/time.h>
93	# 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
94	#endif	94	#endif
95		95
96	/*****************************************************************************/	96	/*****************************************************************************/
97		97
98	#if __GNUC__ >= 3	98	#if __GNUC__ >= 3
…		…
104	#define expect_false(expr) expect ((expr) != 0, 0)	104	#define expect_false(expr) expect ((expr) != 0, 0)
105	#define expect_true(expr) expect ((expr) != 0, 1)	105	#define expect_true(expr) expect ((expr) != 0, 1)
106		106
107	/*****************************************************************************/	107	/*****************************************************************************/
108		108
		109	#include "libeio/config.h"
		110
		111	#if HAVE_RLIMITS
		112	#include <sys/time.h>
		113	#include <sys/resource.h>
		114	#endif
		115
109	typedef SV SV8; /* byte-sv, used for argument-checking */	116	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	117	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	118	typedef int aio_wfd; /* write file descriptor */
112		119
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	120	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		121
115	#define EIO_REQ_MEMBERS \	122	#define EIO_REQ_MEMBERS \
116	SV *callback; \	123	SV *callback; \
117	SV *sv1, *sv2; \	124	SV *sv1, *sv2; \
		125	SV *sv3, *sv4; \
118	STRLEN stroffset; \	126	STRLEN stroffset; \
119	SV *self;	127	SV *self;
120		128
121	#define EIO_NO_WRAPPERS 1	129	#define EIO_NO_WRAPPERS 1
122		130
123	#include "libeio/eio.h"	131	#include "libeio/eio.h"
124		132
125	#ifndef POSIX_FADV_NORMAL	133	static int req_invoke (eio_req *req);
126	# define POSIX_FADV_NORMAL 0	134	#define EIO_FINISH(req) req_invoke (req)
127	# define NO_FADVISE 1	135	static void req_destroy (eio_req *grp);
128	#endif	136	#define EIO_DESTROY(req) req_destroy (req)
129	#ifndef POSIX_FADV_SEQUENTIAL
130	# define POSIX_FADV_SEQUENTIAL 0
131	#endif
132	#ifndef POSIX_FADV_RANDOM
133	# define POSIX_FADV_RANDOM 0
134	#endif
135	#ifndef POSIX_FADV_NOREUSE
136	# define POSIX_FADV_NOREUSE 0
137	#endif
138	#ifndef POSIX_FADV_WILLNEED
139	# define POSIX_FADV_WILLNEED 0
140	#endif
141	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0
143	#endif
144		137
145	#ifndef ST_NODEV	138	#include "libeio/eio.c"
146	# define ST_NODEV 0
147	#endif
148	#ifndef ST_NOEXEC
149	# define ST_NOEXEC 0
150	#endif
151	#ifndef ST_SYNCHRONOUS
152	# define ST_SYNCHRONOUS 0
153	#endif
154	#ifndef ST_MANDLOCK
155	# define ST_MANDLOCK 0
156	#endif
157	#ifndef ST_WRITE
158	# define ST_WRITE 0
159	#endif
160	#ifndef ST_APPEND
161	# define ST_APPEND 0
162	#endif
163	#ifndef ST_IMMUTABLE
164	# define ST_IMMUTABLE 0
165	#endif
166	#ifndef ST_NOATIME
167	# define ST_NOATIME 0
168	#endif
169	#ifndef ST_NODIRATIME
170	# define ST_NODIRATIME 0
171	#endif
172	#ifndef ST_RELATIME
173	# define ST_RELATIME 0
174	#endif
175		139
176	#ifndef MCL_CURRENT	140	#if !HAVE_POSIX_FADVISE
177	# define MCL_CURRENT 0	141	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
178	#endif	142	#endif
179	#ifndef MCL_FUTURE	143
180	# define MCL_FUTURE 0	144	#if !HAVE_POSIX_MADVISE
		145	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
181	#endif	146	#endif
182		147
183	#ifndef MAP_ANONYMOUS	148	#ifndef MAP_ANONYMOUS
184	# ifdef MAP_ANON	149	# ifdef MAP_ANON
185	# define MAP_ANONYMOUS MAP_ANON	150	# define MAP_ANONYMOUS MAP_ANON
186	# else	151	# else
187	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	152	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
188	# endif	153	# endif
189	#endif	154	#endif
190	#ifndef MAP_HUGETLB
191	# define MAP_HUGETLB 0
192	#endif
193	#ifndef MAP_LOCKED
194	# define MAP_LOCKED 0
195	#endif
196	#ifndef MAP_NORESERVE
197	# define MAP_NORESERVE 0
198	#endif
199	#ifndef MAP_POPULATE
200	# define MAP_POPULATE 0
201	#endif
202	#ifndef MAP_NONBLOCK
203	# define MAP_NONBLOCK 0
204	#endif
205		155
206	#ifndef PAGESIZE	156	/* defines all sorts of constants to 0 unless they are already defined */
		157	/* also provides const_iv_ and const_niv_ macros for them */
		158	#include "def0.h"
		159
		160	#ifndef makedev
		161	# define makedev(maj,min) (((maj) << 8) | (min))
		162	#endif
		163	#ifndef major
		164	# define major(dev) ((dev) >> 8)
		165	#endif
		166	#ifndef minor
		167	# define minor(dev) ((dev) & 0xff)
		168	#endif
		169
		170	#if PAGESIZE <= 0
207	# define PAGESIZE sysconf (_SC_PAGESIZE)	171	# define PAGESIZE sysconf (_SC_PAGESIZE)
208	#endif	172	#endif
209		173
210	static int req_invoke (eio_req *req);	174	/*****************************************************************************/
211	#define EIO_FINISH(req) req_invoke (req)	175
212	static void req_destroy (eio_req *grp);	176	static void
213	#define EIO_DESTROY(req) req_destroy (req)	177	fiemap (eio_req *req)
		178	{
		179	req->result = -1;
		180
		181	#if HAVE_FIEMAP
		182	/* assume some c99 */
		183	struct fiemap *fiemap = 0;
		184	size_t end_offset;
		185	int count = req->int3;
		186
		187	req->flags |= EIO_FLAG_PTR1_FREE;
		188
		189	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		190	/* increase in 3.5kb steps */
		191	if (count < 0)
		192	count = 8;
		193
		194	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		195	errno = ENOMEM;
		196	if (!fiemap)
		197	return;
		198
		199	req->ptr1 = fiemap;
		200
		201	fiemap->fm_start = req->offs;
		202	fiemap->fm_length = req->size;
		203	fiemap->fm_flags = req->int2;
		204	fiemap->fm_extent_count = count;
		205
		206	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		207	return;
		208
		209	if (req->int3 >= 0 /* not autosizing */
		210	|| !fiemap->fm_mapped_extents /* no more extents */
		211	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		212	goto done;
		213
		214	/* else we have to loop -
		215	* it would be tempting (actually I tried that first) to just query the
		216	* number of extents needed, but linux often feels like not returning all
		217	* extents, without telling us it left any out. this complicates
		218	* this quite a bit.
		219	*/
		220
		221	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		222
		223	for (;;)
		224	{
		225	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		226	char scratch[3072];
		227	struct fiemap *incmap = (struct fiemap *)scratch;
		228
		229	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		230	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		231	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		232	incmap->fm_flags = fiemap->fm_flags;
		233	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		234
		235	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		236	return;
		237
		238	if (!incmap->fm_mapped_extents)
		239	goto done;
		240
		241	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		242	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		243	errno = ENOMEM;
		244	if (!fiemap)
		245	return;
		246
		247	req->ptr1 = fiemap;
		248
		249	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		250	{
		251	struct fiemap_extent *e = incmap->fm_extents + count;
		252
		253	if (e->fe_logical + e->fe_length >= end_offset)
		254	goto done;
		255
		256	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		257
		258	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		259	goto done;
		260
		261	}
		262	}
		263
		264	done:
		265	req->result = 0;
		266
		267	#else
		268	errno = ENOSYS;
		269	#endif
		270	}
		271
		272	/*****************************************************************************/
214		273
215	enum {	274	enum {
216	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	275	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
217	};	276	};
218		277
219	#include "libeio/eio.c"
220
221	typedef eio_req *aio_req;	278	typedef eio_req *aio_req;
222	typedef eio_req *aio_req_ornot;	279	typedef eio_req *aio_req_ornot;
		280	typedef eio_wd aio_wd;
223		281
224	static SV *on_next_submit;	282	static SV *on_next_submit;
225	static int next_pri = EIO_PRI_DEFAULT;	283	static int next_pri = EIO_PRI_DEFAULT;
226	static int max_outstanding;	284	static int max_outstanding;
227		285
228	static s_epipe respipe;	286	static s_epipe respipe;
229		287
230	static void req_destroy (aio_req req);	288	static void req_destroy (aio_req req);
231	static void req_cancel (aio_req req);	289	static void req_cancel (aio_req req);
232		290
233	static void want_poll (void)	291	static void
		292	want_poll (void)
234	{	293	{
235	/* write a dummy byte to the pipe so fh becomes ready */	294	/* write a dummy byte to the pipe so fh becomes ready */
236	s_epipe_signal (&respipe);	295	s_epipe_signal (&respipe);
237	}	296	}
238		297
239	static void done_poll (void)	298	static void
		299	done_poll (void)
240	{	300	{
241	/* read any signals sent by the worker threads */	301	/* read any signals sent by the worker threads */
242	s_epipe_drain (&respipe);	302	s_epipe_drain (&respipe);
243	}	303	}
244		304
245	/* must be called at most once */	305	/* must be called at most once */
		306	static SV *
246	static SV *req_sv (aio_req req, HV *stash)	307	req_sv (aio_req req, HV *stash)
247	{	308	{
248	if (!req->self)	309	if (!req->self)
249	{	310	{
250	req->self = (SV *)newHV ();	311	req->self = (SV *)newHV ();
251	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	312	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
252	}	313	}
253		314
254	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	315	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
255	}	316	}
256		317
257	static aio_req SvAIO_REQ (SV *sv)	318	static SV *
		319	newSVaio_wd (aio_wd wd)
		320	{
		321	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		322	}
		323
		324	static aio_req
		325	SvAIO_REQ (SV *sv)
258	{	326	{
259	MAGIC *mg;	327	MAGIC *mg;
260		328
261	if (!SvROK (sv)	329	if (!SvROK (sv)
		330	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
262	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	331	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
263	&& SvSTASH (SvRV (sv)) != aio_req_stash	332	&& SvSTASH (SvRV (sv)) != aio_req_stash
264	&& !sv_derived_from (sv, "IO::AIO::REQ")))	333	&& !sv_derived_from (sv, "IO::AIO::REQ")))
265	croak ("object of class IO::AIO::REQ expected");	334	croak ("object of class IO::AIO::REQ expected");
266		335
267	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	336	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
268		337
269	return mg ? (aio_req)mg->mg_ptr : 0;	338	return mg ? (aio_req)mg->mg_ptr : 0;
270	}	339	}
271		340
		341	static aio_wd
		342	SvAIO_WD (SV *sv)
		343	{
		344	if (!SvROK (sv)
		345	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		346	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		347	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		348
		349	return (aio_wd)(long)SvIVX (SvRV (sv));
		350	}
		351
		352	static SV *
		353	newmortalFH (int fd, int flags)
		354	{
		355	if (fd < 0)
		356	return &PL_sv_undef;
		357
		358	GV *gv = (GV *)sv_newmortal ();
		359	char sym[64];
		360	int symlen;
		361
		362	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		363	gv_init (gv, aio_stash, sym, symlen, 0);
		364
		365	symlen = snprintf (
		366	sym,
		367	sizeof (sym),
		368	"%s&=%d",
		369	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		370	fd
		371	);
		372
		373	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		374	? (SV *)gv : &PL_sv_undef;
		375	}
		376
		377	static void
272	static void aio_grp_feed (aio_req grp)	378	aio_grp_feed (aio_req grp)
273	{	379	{
274	if (grp->sv2 && SvOK (grp->sv2))	380	if (grp->sv2 && SvOK (grp->sv2))
275	{	381	{
276	dSP;	382	dSP;
277		383
…		…
285	FREETMPS;	391	FREETMPS;
286	LEAVE;	392	LEAVE;
287	}	393	}
288	}	394	}
289		395
		396	static void
290	static void req_submit (eio_req *req)	397	req_submit (eio_req *req)
291	{	398	{
292	eio_submit (req);	399	eio_submit (req);
293		400
294	if (expect_false (on_next_submit))	401	if (expect_false (on_next_submit))
295	{	402	{
…		…
302	PUTBACK;	409	PUTBACK;
303	call_sv (cb, G_DISCARD | G_EVAL);	410	call_sv (cb, G_DISCARD | G_EVAL);
304	}	411	}
305	}	412	}
306		413
		414	static int
307	static int req_invoke (eio_req *req)	415	req_invoke (eio_req *req)
308	{	416	{
309	if (req->flags & FLAG_SV2_RO_OFF)	417	if (req->flags & FLAG_SV2_RO_OFF)
310	SvREADONLY_off (req->sv2);	418	SvREADONLY_off (req->sv2);
311		419
312	if (!EIO_CANCELLED (req) && req->callback)	420	if (!EIO_CANCELLED (req) && req->callback)
…		…
323	/* do not recreate the result IV from scratch each time */	431	/* do not recreate the result IV from scratch each time */
324	if (expect_true (sv_result_cache))	432	if (expect_true (sv_result_cache))
325	{	433	{
326	sv_result = sv_result_cache; sv_result_cache = 0;	434	sv_result = sv_result_cache; sv_result_cache = 0;
327	SvIV_set (sv_result, req->result);	435	SvIV_set (sv_result, req->result);
		436	SvIOK_only (sv_result);
328	}	437	}
329	else	438	else
330	{	439	{
331	sv_result = newSViv (req->result);	440	sv_result = newSViv (req->result);
332	SvREADONLY_on (sv_result);	441	SvREADONLY_on (sv_result);
333	}	442	}
334		443
335	switch (req->type)	444	switch (req->type)
336	{	445	{
		446	case EIO_WD_OPEN:
		447	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		448	break;
		449
337	case EIO_READDIR:	450	case EIO_READDIR:
338	{	451	{
339	SV *rv = &PL_sv_undef;	452	SV *rv = &PL_sv_undef;
340		453
341	if (req->result >= 0)	454	if (req->result >= 0)
…		…
394	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	507	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
395	}	508	}
396	break;	509	break;
397		510
398	case EIO_OPEN:	511	case EIO_OPEN:
399	{	512	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
400	/* convert fd to fh */
401	SV *fh = &PL_sv_undef;
402
403	if (req->result >= 0)
404	{
405	GV *gv = (GV *)sv_newmortal ();
406	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
407	char sym [64];
408	int symlen;
409
410	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
411	gv_init (gv, aio_stash, sym, symlen, 0);
412
413	symlen = snprintf (
414	sym,
415	sizeof (sym),
416	"%s&=%d",
417	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
418	(int)req->result
419	);
420
421	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
422	fh = (SV *)gv;
423	}
424
425	PUSHs (fh);
426	}
427	break;	513	break;
428		514
429	case EIO_STATVFS:	515	case EIO_STATVFS:
430	case EIO_FSTATVFS:	516	case EIO_FSTATVFS:
431	{	517	{
432	SV *rv = &PL_sv_undef;	518	SV *rv = &PL_sv_undef;
433		519
		520	#ifndef _WIN32
434	if (req->result >= 0)	521	if (req->result >= 0)
435	{	522	{
436	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	523	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
437	HV *hv = newHV ();	524	HV *hv = newHV ();
		525	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		526	* chooses to make it a struct.
		527	*/
		528	unsigned long fsid = 0;
		529	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
438		530
439	rv = sv_2mortal (newRV_noinc ((SV *)hv));	531	rv = sv_2mortal (newRV_noinc ((SV *)hv));
440		532
441	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	533	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
442	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	534	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
444	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	536	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
445	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	537	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
446	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	538	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
447	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	539	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
448	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	540	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
449	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	541	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
450	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	542	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
451	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	543	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
452	}	544	}
		545	#endif
453		546
454	PUSHs (rv);	547	PUSHs (rv);
455	}	548	}
456		549
457	break;	550	break;
…		…
473	case EIO_NOP:	566	case EIO_NOP:
474	case EIO_BUSY:	567	case EIO_BUSY:
475	break;	568	break;
476		569
477	case EIO_READLINK:	570	case EIO_READLINK:
		571	case EIO_REALPATH:
478	if (req->result > 0)	572	if (req->result > 0)
479	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	573	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
480	break;	574	break;
481		575
482	case EIO_STAT:	576	case EIO_STAT:
483	case EIO_LSTAT:	577	case EIO_LSTAT:
484	case EIO_FSTAT:	578	case EIO_FSTAT:
485	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	579	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		580
486	PL_laststatval = req->result;	581	if (!(PL_laststatval = req->result))
		582	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
487	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	583	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		584
488	PUSHs (sv_result);	585	PUSHs (sv_result);
		586	break;
		587
		588	case EIO_SEEK:
		589	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
489	break;	590	break;
490		591
491	case EIO_READ:	592	case EIO_READ:
492	{	593	{
493	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	594	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
496	SvSETMAGIC (req->sv2);	597	SvSETMAGIC (req->sv2);
497	PUSHs (sv_result);	598	PUSHs (sv_result);
498	}	599	}
499	break;	600	break;
500		601
		602	case EIO_CUSTOM:
		603	if (req->feed == fiemap)
		604	{
		605	#if HAVE_FIEMAP
		606	if (!req->result)
		607	{
		608	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		609
		610	if (fiemap->fm_extent_count)
		611	{
		612	AV *av = newAV ();
		613	int i;
		614
		615	while (fiemap->fm_mapped_extents)
		616	{
		617	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		618	AV *ext_av = newAV ();
		619
		620	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		621	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		622	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		623	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		624
		625	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		626	}
		627
		628	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		629	}
		630	else
		631	{
		632	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		633	PUSHs (sv_result);
		634	}
		635	}
		636	#endif
		637	}
		638	else
		639	PUSHs (sv_result);
		640	break;
		641
501	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */	642	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
502	if (req->result > 0)	643	if (req->result > 0)
503	SvIV_set (sv_result, 0);	644	SvIV_set (sv_result, 0);
504	/* FALLTHROUGH */	645	/* FALLTHROUGH */
505		646
506	default:	647	default:
…		…
526	}	667	}
527		668
528	return !!SvTRUE (ERRSV);	669	return !!SvTRUE (ERRSV);
529	}	670	}
530		671
		672	static void
531	static void req_destroy (aio_req req)	673	req_destroy (aio_req req)
532	{	674	{
533	if (req->self)	675	if (req->self)
534	{	676	{
535	sv_unmagic (req->self, PERL_MAGIC_ext);	677	sv_unmagic (req->self, PERL_MAGIC_ext);
536	SvREFCNT_dec (req->self);	678	SvREFCNT_dec (req->self);
537	}	679	}
538		680
539	SvREFCNT_dec (req->sv1);	681	SvREFCNT_dec (req->sv1);
540	SvREFCNT_dec (req->sv2);	682	SvREFCNT_dec (req->sv2);
		683	SvREFCNT_dec (req->sv3);
		684	SvREFCNT_dec (req->sv4);
541	SvREFCNT_dec (req->callback);	685	SvREFCNT_dec (req->callback);
542		686
543	Safefree (req);	687	free (req);
544	}	688	}
545		689
		690	static void
546	static void req_cancel_subs (aio_req grp)	691	req_cancel_subs (aio_req grp)
547	{	692	{
548	aio_req sub;
549
550	if (grp->type != EIO_GROUP)	693	if (grp->type != EIO_GROUP)
551	return;	694	return;
552		695
553	SvREFCNT_dec (grp->sv2);	696	SvREFCNT_dec (grp->sv2);
554	grp->sv2 = 0;	697	grp->sv2 = 0;
555		698
556	eio_grp_cancel (grp);	699	eio_grp_cancel (grp);
557	}	700	}
558		701
559	static void	702	static void ecb_cold
560	create_respipe (void)	703	create_respipe (void)
561	{	704	{
562	if (s_epipe_renew (&respipe))	705	if (s_epipe_renew (&respipe))
563	croak ("IO::AIO: unable to initialize result pipe");	706	croak ("IO::AIO: unable to initialize result pipe");
564	}	707	}
565		708
566	static void poll_wait (void)	709	static void
		710	poll_wait (void)
567	{	711	{
568	while (eio_nreqs ())	712	while (eio_nreqs ())
569	{	713	{
570	int size;	714	int size;
571		715
572	X_LOCK (reslock);	716	X_LOCK (EIO_POOL->reslock);
573	size = res_queue.size;	717	size = EIO_POOL->res_queue.size;
574	X_UNLOCK (reslock);	718	X_UNLOCK (EIO_POOL->reslock);
575		719
576	if (size)	720	if (size)
577	return;	721	return;
578		722
579	etp_maybe_start_thread ();	723	etp_maybe_start_thread (EIO_POOL);
580		724
581	s_epipe_wait (&respipe);	725	s_epipe_wait (&respipe);
582	}	726	}
583	}	727	}
584		728
585	static int poll_cb (void)	729	static int
		730	poll_cb (void)
586	{	731	{
587	for (;;)	732	for (;;)
588	{	733	{
589	int res = eio_poll ();	734	int res = eio_poll ();
590		735
…		…
596		741
597	poll_wait ();	742	poll_wait ();
598	}	743	}
599	}	744	}
600		745
601	static void atfork_child (void)	746	static void ecb_cold
		747	reinit (void)
602	{	748	{
603	create_respipe ();	749	create_respipe ();
		750
		751	if (eio_init (want_poll, done_poll) < 0)
		752	croak ("IO::AIO: unable to initialise eio library");
604	}	753	}
605		754
606	/*****************************************************************************/	755	/*****************************************************************************/
607		756
608	#if !_POSIX_MAPPED_FILES	757	#if !_POSIX_MAPPED_FILES
609	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)	758	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
610	# define munmap(addr,length) (errno = ENOSYS, -1)	759	# define munmap(addr,length) EIO_ENOSYS ()
		760	#endif
		761
		762	#if !_POSIX_MEMORY_PROTECTION
		763	# define mprotect(addr,len,prot) EIO_ENOSYS ()
611	#endif	764	#endif
612		765
613	#define MMAP_MAGIC PERL_MAGIC_ext	766	#define MMAP_MAGIC PERL_MAGIC_ext
614		767
615	static int	768	static int ecb_cold
616	mmap_free (pTHX_ SV *sv, MAGIC *mg)	769	mmap_free (pTHX_ SV *sv, MAGIC *mg)
617	{	770	{
618	int old_errno = errno;	771	int old_errno = errno;
619	munmap (mg->mg_ptr, (size_t)mg->mg_obj);	772	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
620	errno = old_errno;	773	errno = old_errno;
…		…
644	{	797	{
645	SvGETMAGIC (cb_sv);	798	SvGETMAGIC (cb_sv);
646	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	799	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
647	}	800	}
648		801
		802	static aio_req ecb_noinline
		803	dreq (SV *callback)
		804	{
		805	SV *cb_cv;
		806	aio_req req;
		807	int req_pri = next_pri;
		808	next_pri = EIO_PRI_DEFAULT;
		809
		810	cb_cv = get_cb (callback);
		811
		812	req = calloc (sizeof (*req), 1);
		813	if (!req)
		814	croak ("out of memory during eio_req allocation");
		815
		816	req->callback = SvREFCNT_inc (cb_cv);
		817	req->pri = req_pri;
		818
		819	return req;
		820	}
		821
649	#define dREQ \	822	#define dREQ \
650	SV *cb_cv; \	823	aio_req req = dreq (callback); \
651	aio_req req; \
652	int req_pri = next_pri; \
653	next_pri = EIO_PRI_DEFAULT; \
654	\
655	cb_cv = get_cb (callback); \
656	\
657	Newz (0, req, 1, eio_req); \
658	if (!req) \
659	croak ("out of memory during eio_req allocation"); \
660	\
661	req->callback = SvREFCNT_inc (cb_cv); \
662	req->pri = req_pri
663		824
664	#define REQ_SEND \	825	#define REQ_SEND \
665	PUTBACK; \	826	PUTBACK; \
666	req_submit (req); \	827	req_submit (req); \
667	SPAGAIN; \	828	SPAGAIN; \
668	\	829	\
669	if (GIMME_V != G_VOID) \	830	if (GIMME_V != G_VOID) \
670	XPUSHs (req_sv (req, aio_req_stash));	831	XPUSHs (req_sv (req, aio_req_stash));
671		832
		833	ecb_inline void
		834	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		835	{
		836	if (expect_false (SvROK (path)))
		837	{
		838	SV *rv = SvRV (path);
		839	SV *wdob;
		840
		841	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		842	{
		843	path = AvARRAY (rv)[1];
		844	wdob = AvARRAY (rv)[0];
		845
		846	if (SvOK (wdob))
		847	{
		848	*wd = SvAIO_WD (wdob);
		849	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		850	}
		851	else
		852	*wd = EIO_INVALID_WD;
		853	}
		854	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		855	{
		856	*wd = (aio_wd)(long)SvIVX (rv);
		857	*wdsv = SvREFCNT_inc_NN (rv);
		858	*ptr = ".";
		859	return; /* path set to "." */
		860	}
		861	else
		862	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		863	}
		864
		865	*pathsv = newSVsv (path);
		866	*ptr = SvPVbyte_nolen (*pathsv);
		867	}
		868
		869	static void ecb_noinline
		870	req_set_path1 (aio_req req, SV *path)
		871	{
		872	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		873	}
		874
		875	static void ecb_noinline
		876	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		877	{
		878	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		879
		880	switch (SvTYPE (rv))
		881	{
		882	case SVt_PVIO:
		883	case SVt_PVLV:
		884	case SVt_PVGV:
		885	req->type = type_fh;
		886	req->sv1 = newSVsv (fh_or_path);
		887	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		888	break;
		889
		890	default:
		891	req->type = type_path;
		892	req_set_path1 (req, fh_or_path);
		893	break;
		894	}
		895	}
		896
		897	XS(boot_IO__AIO) ecb_cold;
		898
672	MODULE = IO::AIO PACKAGE = IO::AIO	899	MODULE = IO::AIO PACKAGE = IO::AIO
673		900
674	PROTOTYPES: ENABLE	901	PROTOTYPES: ENABLE
675		902
676	BOOT:	903	BOOT:
…		…
680	IV iv;	907	IV iv;
681	} *civ, const_iv[] = {	908	} *civ, const_iv[] = {
682	# define const_niv(name, value) { # name, (IV) value },	909	# define const_niv(name, value) { # name, (IV) value },
683	# define const_iv(name) { # name, (IV) name },	910	# define const_iv(name) { # name, (IV) name },
684	# define const_eio(name) { # name, (IV) EIO_ ## name },	911	# define const_eio(name) { # name, (IV) EIO_ ## name },
		912
		913	/* you have to re-run ./gendef0 after adding/removing any constants here */
		914	/* the first block can be undef if missing */
		915	const_iv (ENOSYS)
685	const_iv (EXDEV)	916	const_iv (EXDEV)
686	const_iv (ENOSYS)	917	const_iv (EBADR)
		918
		919	/* for lseek */
		920	const_iv (SEEK_DATA)
		921	const_iv (SEEK_HOLE)
		922
		923	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		924	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		925	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		926	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		927	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		928	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		929
		930	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		931	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		932	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		933	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		934	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		935
		936	/* the second block will be 0 when missing */
687	const_iv (O_RDONLY)	937	const_iv (O_RDONLY)
688	const_iv (O_WRONLY)	938	const_iv (O_WRONLY)
689	const_iv (O_RDWR)	939	const_iv (O_RDWR)
690	const_iv (O_CREAT)	940	const_iv (O_CREAT)
691	const_iv (O_TRUNC)	941	const_iv (O_TRUNC)
692	const_iv (O_EXCL)	942	const_iv (O_EXCL)
693	const_iv (O_APPEND)	943	const_iv (O_APPEND)
694	#ifndef _WIN32	944
		945	const_iv (O_ASYNC)
		946	const_iv (O_DIRECT)
		947	const_iv (O_NOATIME)
		948
		949	const_iv (O_CLOEXEC)
		950	const_iv (O_NOCTTY)
		951	const_iv (O_NOFOLLOW)
		952	const_iv (O_NONBLOCK)
		953	const_iv (O_EXEC)
		954	const_iv (O_SEARCH)
		955	const_iv (O_DIRECTORY)
		956	const_iv (O_DSYNC)
		957	const_iv (O_RSYNC)
		958	const_iv (O_SYNC)
		959	const_iv (O_PATH)
		960	const_iv (O_TMPFILE)
		961	const_iv (O_TTY_INIT)
		962
695	const_iv (S_IFIFO)	963	const_iv (S_IFIFO)
696	#endif	964	const_iv (S_IFCHR)
697	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	965	const_iv (S_IFBLK)
698	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	966	const_iv (S_IFLNK)
699	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	967	const_iv (S_IFREG)
700	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	968	const_iv (S_IFDIR)
701	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	969	const_iv (S_IFWHT)
702	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	970	const_iv (S_IFSOCK)
		971	const_iv (S_IFMT)
703		972
704	const_iv (ST_RDONLY)	973	const_iv (ST_RDONLY)
705	const_iv (ST_NOSUID)	974	const_iv (ST_NOSUID)
706	const_iv (ST_NODEV)	975	const_iv (ST_NODEV)
707	const_iv (ST_NOEXEC)	976	const_iv (ST_NOEXEC)
…		…
712	const_iv (ST_IMMUTABLE)	981	const_iv (ST_IMMUTABLE)
713	const_iv (ST_NOATIME)	982	const_iv (ST_NOATIME)
714	const_iv (ST_NODIRATIME)	983	const_iv (ST_NODIRATIME)
715	const_iv (ST_RELATIME)	984	const_iv (ST_RELATIME)
716		985
		986	const_iv (PROT_NONE)
717	const_iv (PROT_EXEC)	987	const_iv (PROT_EXEC)
718	const_iv (PROT_NONE)
719	const_iv (PROT_READ)	988	const_iv (PROT_READ)
720	const_iv (PROT_WRITE)	989	const_iv (PROT_WRITE)
721		990
722	/*const_iv (MAP_FIXED)*/
723	const_iv (MAP_PRIVATE)	991	const_iv (MAP_PRIVATE)
724	const_iv (MAP_SHARED)	992	const_iv (MAP_SHARED)
		993	const_iv (MAP_FIXED)
725	const_iv (MAP_ANONYMOUS)	994	const_iv (MAP_ANONYMOUS)
726		995
727	/* linuxish */	996	/* linuxish */
728	const_iv (MAP_HUGETLB)
729	const_iv (MAP_LOCKED)	997	const_iv (MAP_LOCKED)
730	const_iv (MAP_NORESERVE)	998	const_iv (MAP_NORESERVE)
731	const_iv (MAP_POPULATE)	999	const_iv (MAP_POPULATE)
732	const_iv (MAP_NONBLOCK)	1000	const_iv (MAP_NONBLOCK)
		1001	const_iv (MAP_GROWSDOWN)
		1002	const_iv (MAP_32BIT)
		1003	const_iv (MAP_HUGETLB)
		1004	const_iv (MAP_STACK)
733		1005
		1006	const_iv (F_DUPFD_CLOEXEC)
		1007
		1008	const_iv (F_OFD_GETLK)
		1009	const_iv (F_OFD_SETLK)
		1010	const_iv (F_OFD_GETLKW)
		1011
		1012	const_iv (FIFREEZE)
		1013	const_iv (FITHAW)
		1014	const_iv (FITRIM)
		1015	const_iv (FICLONE)
		1016	const_iv (FICLONERANGE)
		1017	const_iv (FIDEDUPERANGE)
		1018
		1019	const_iv (FS_IOC_GETFLAGS)
		1020	const_iv (FS_IOC_SETFLAGS)
		1021	const_iv (FS_IOC_GETVERSION)
		1022	const_iv (FS_IOC_SETVERSION)
		1023	const_iv (FS_IOC_FIEMAP)
		1024	const_iv (FS_IOC_FSGETXATTR)
		1025	const_iv (FS_IOC_FSSETXATTR)
		1026	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1027	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1028	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1029
		1030	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1031
		1032	const_iv (FS_SECRM_FL)
		1033	const_iv (FS_UNRM_FL)
		1034	const_iv (FS_COMPR_FL)
		1035	const_iv (FS_SYNC_FL)
		1036	const_iv (FS_IMMUTABLE_FL)
		1037	const_iv (FS_APPEND_FL)
		1038	const_iv (FS_NODUMP_FL)
		1039	const_iv (FS_NOATIME_FL)
		1040	const_iv (FS_DIRTY_FL)
		1041	const_iv (FS_COMPRBLK_FL)
		1042	const_iv (FS_NOCOMP_FL)
		1043	const_iv (FS_ENCRYPT_FL)
		1044	const_iv (FS_BTREE_FL)
		1045	const_iv (FS_INDEX_FL)
		1046	const_iv (FS_JOURNAL_DATA_FL)
		1047	const_iv (FS_NOTAIL_FL)
		1048	const_iv (FS_DIRSYNC_FL)
		1049	const_iv (FS_TOPDIR_FL)
		1050	const_iv (FS_FL_USER_MODIFIABLE)
		1051
		1052	const_iv (FS_XFLAG_REALTIME)
		1053	const_iv (FS_XFLAG_PREALLOC)
		1054	const_iv (FS_XFLAG_IMMUTABLE)
		1055	const_iv (FS_XFLAG_APPEND)
		1056	const_iv (FS_XFLAG_SYNC)
		1057	const_iv (FS_XFLAG_NOATIME)
		1058	const_iv (FS_XFLAG_NODUMP)
		1059	const_iv (FS_XFLAG_RTINHERIT)
		1060	const_iv (FS_XFLAG_PROJINHERIT)
		1061	const_iv (FS_XFLAG_NOSYMLINKS)
		1062	const_iv (FS_XFLAG_EXTSIZE)
		1063	const_iv (FS_XFLAG_EXTSZINHERIT)
		1064	const_iv (FS_XFLAG_NODEFRAG)
		1065	const_iv (FS_XFLAG_FILESTREAM)
		1066	const_iv (FS_XFLAG_DAX)
		1067	const_iv (FS_XFLAG_HASATTR)
		1068
		1069	const_iv (FIEMAP_FLAG_SYNC)
		1070	const_iv (FIEMAP_FLAG_XATTR)
		1071	const_iv (FIEMAP_FLAGS_COMPAT)
		1072	const_iv (FIEMAP_EXTENT_LAST)
		1073	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1074	const_iv (FIEMAP_EXTENT_DELALLOC)
		1075	const_iv (FIEMAP_EXTENT_ENCODED)
		1076	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1077	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1078	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1079	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1080	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1081	const_iv (FIEMAP_EXTENT_MERGED)
		1082	const_iv (FIEMAP_EXTENT_SHARED)
		1083
		1084	const_iv (SPLICE_F_MOVE)
		1085	const_iv (SPLICE_F_NONBLOCK)
		1086	const_iv (SPLICE_F_MORE)
		1087	const_iv (SPLICE_F_GIFT)
		1088
		1089	/* these are libeio constants, and are independent of gendef0 */
		1090	const_eio (SEEK_SET)
		1091	const_eio (SEEK_CUR)
		1092	const_eio (SEEK_END)
		1093
734	const_iv (MCL_FUTURE)	1094	const_eio (MCL_FUTURE)
735	const_iv (MCL_CURRENT)	1095	const_eio (MCL_CURRENT)
736		1096
737	const_eio (MS_ASYNC)	1097	const_eio (MS_ASYNC)
738	const_eio (MS_INVALIDATE)	1098	const_eio (MS_INVALIDATE)
739	const_eio (MS_SYNC)	1099	const_eio (MS_SYNC)
740		1100
741	const_eio (MT_MODIFY)	1101	const_eio (MT_MODIFY)
742		1102
743	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1103	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
744	const_eio (SYNC_FILE_RANGE_WRITE)	1104	const_eio (SYNC_FILE_RANGE_WRITE)
745	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1105	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1106
		1107	const_eio (FALLOC_FL_KEEP_SIZE)
		1108	const_eio (FALLOC_FL_PUNCH_HOLE)
		1109	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1110	const_eio (FALLOC_FL_ZERO_RANGE)
		1111	const_eio (FALLOC_FL_INSERT_RANGE)
		1112	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1113
		1114	const_eio (RENAME_NOREPLACE)
		1115	const_eio (RENAME_EXCHANGE)
		1116	const_eio (RENAME_WHITEOUT)
746		1117
747	const_eio (READDIR_DENTS)	1118	const_eio (READDIR_DENTS)
748	const_eio (READDIR_DIRS_FIRST)	1119	const_eio (READDIR_DIRS_FIRST)
749	const_eio (READDIR_STAT_ORDER)	1120	const_eio (READDIR_STAT_ORDER)
750	const_eio (READDIR_FOUND_UNKNOWN)	1121	const_eio (READDIR_FOUND_UNKNOWN)
…		…
761	};	1132	};
762		1133
763	aio_stash = gv_stashpv ("IO::AIO" , 1);	1134	aio_stash = gv_stashpv ("IO::AIO" , 1);
764	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1135	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
765	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1136	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1137	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
766		1138
767	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1139	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
768	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1140	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
769		1141
770	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1142	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
771		1143
772	create_respipe ();	1144	reinit ();
773
774	if (eio_init (want_poll, done_poll) < 0)
775	croak ("IO::AIO: unable to initialise eio library");
776
777	/* atfork child called in fifo order, so before eio's handler */
778	X_THREAD_ATFORK (0, 0, atfork_child);
779	}	1145	}
780		1146
781	void	1147	void
		1148	reinit ()
		1149	PROTOTYPE:
		1150
		1151	void
782	max_poll_reqs (int nreqs)	1152	max_poll_reqs (unsigned int nreqs)
783	PROTOTYPE: $	1153	PROTOTYPE: $
784	CODE:	1154	CODE:
785	eio_set_max_poll_reqs (nreqs);	1155	eio_set_max_poll_reqs (nreqs);
786		1156
787	void	1157	void
…		…
789	PROTOTYPE: $	1159	PROTOTYPE: $
790	CODE:	1160	CODE:
791	eio_set_max_poll_time (nseconds);	1161	eio_set_max_poll_time (nseconds);
792		1162
793	void	1163	void
794	min_parallel (int nthreads)	1164	min_parallel (unsigned int nthreads)
795	PROTOTYPE: $	1165	PROTOTYPE: $
796	CODE:	1166	CODE:
797	eio_set_min_parallel (nthreads);	1167	eio_set_min_parallel (nthreads);
798		1168
799	void	1169	void
800	max_parallel (int nthreads)	1170	max_parallel (unsigned int nthreads)
801	PROTOTYPE: $	1171	PROTOTYPE: $
802	CODE:	1172	CODE:
803	eio_set_max_parallel (nthreads);	1173	eio_set_max_parallel (nthreads);
804		1174
805	void	1175	void
806	max_idle (int nthreads)	1176	max_idle (unsigned int nthreads)
807	PROTOTYPE: $	1177	PROTOTYPE: $
808	CODE:	1178	CODE:
809	eio_set_max_idle (nthreads);	1179	eio_set_max_idle (nthreads);
810		1180
811	void	1181	void
		1182	idle_timeout (unsigned int seconds)
		1183	PROTOTYPE: $
		1184	CODE:
		1185	eio_set_idle_timeout (seconds);
		1186
		1187	void
812	max_outstanding (int maxreqs)	1188	max_outstanding (unsigned int maxreqs)
813	PROTOTYPE: $	1189	PROTOTYPE: $
814	CODE:	1190	CODE:
815	max_outstanding = maxreqs;	1191	max_outstanding = maxreqs;
816		1192
817	void	1193	void
818	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1194	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
819	PROTOTYPE: $$$;$
820	PPCODE:	1195	PPCODE:
821	{	1196	{
822	dREQ;	1197	dREQ;
823		1198
		1199	req->type = EIO_WD_OPEN;
		1200	req_set_path1 (req, pathname);
		1201
		1202	REQ_SEND;
		1203	}
		1204
		1205	void
		1206	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1207	PPCODE:
		1208	{
		1209	dREQ;
		1210
824	req->type = EIO_OPEN;	1211	req->type = EIO_OPEN;
825	req->sv1 = newSVsv (pathname);	1212	req_set_path1 (req, pathname);
826	req->ptr1 = SvPVbyte_nolen (req->sv1);
827	req->int1 = flags;	1213	req->int1 = flags;
828	req->int2 = mode;	1214	req->int2 = mode;
829		1215
830	REQ_SEND;	1216	REQ_SEND;
831	}	1217	}
832		1218
833	void	1219	void
834	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1220	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
835	PROTOTYPE: $;$
836	ALIAS:	1221	ALIAS:
837	aio_fsync = EIO_FSYNC	1222	aio_fsync = EIO_FSYNC
838	aio_fdatasync = EIO_FDATASYNC	1223	aio_fdatasync = EIO_FDATASYNC
		1224	aio_syncfs = EIO_SYNCFS
839	PPCODE:	1225	PPCODE:
840	{	1226	{
841	int fd = s_fileno_croak (fh, 0);	1227	int fd = s_fileno_croak (fh, 0);
842	dREQ;	1228	dREQ;
843		1229
844	req->type = ix;	1230	req->type = ix;
845	req->sv1 = newSVsv (fh);	1231	req->sv1 = newSVsv (fh);
846	req->int1 = fd;	1232	req->int1 = fd;
847		1233
848	REQ_SEND (req);	1234	REQ_SEND;
849	}	1235	}
850		1236
851	void	1237	void
852	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1238	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
853	PROTOTYPE: $$$$;$
854	PPCODE:	1239	PPCODE:
855	{	1240	{
856	int fd = s_fileno_croak (fh, 0);	1241	int fd = s_fileno_croak (fh, 0);
857	dREQ;	1242	dREQ;
858		1243
859	req->type = EIO_SYNC_FILE_RANGE;	1244	req->type = EIO_SYNC_FILE_RANGE;
860	req->sv1 = newSVsv (fh);	1245	req->sv1 = newSVsv (fh);
861	req->int1 = fd;	1246	req->int1 = fd;
862	req->offs = offset;	1247	req->offs = offset;
863	req->size = nbytes;	1248	req->size = nbytes;
864	req->int2 = flags;	1249	req->int2 = flags;
865		1250
866	REQ_SEND (req);	1251	REQ_SEND;
867	}	1252	}
868		1253
869	void	1254	void
870	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1255	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
871	PROTOTYPE: $;$
872	PPCODE:	1256	PPCODE:
873	{	1257	{
874	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
875	int fd = s_fileno_croak (fh, 0);	1258	int fd = s_fileno_croak (fh, 0);
876	dREQ;	1259	dREQ;
877		1260
878	if (close_pipe < 0)	1261	req->type = EIO_FALLOCATE;
		1262	req->sv1 = newSVsv (fh);
		1263	req->int1 = fd;
		1264	req->int2 = mode;
		1265	req->offs = offset;
		1266	req->size = len;
		1267
		1268	REQ_SEND;
		1269	}
		1270
		1271	void
		1272	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1273	PPCODE:
		1274	{
		1275	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1276	int fd = s_fileno_croak (fh, 0);
		1277	dREQ;
		1278
		1279	if (expect_false (close_fd < 0))
879	{	1280	{
880	int pipefd [2];	1281	int pipefd [2];
881		1282
		1283	if (
		1284	#ifdef _WIN32
		1285	_pipe (pipefd, 1, _O_BINARY) < 0
		1286	#else
882	if (pipe (pipefd) < 0	1287	pipe (pipefd) < 0
883	|| close (pipefd [1]) < 0
884	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1288	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1289	#endif
		1290	|| close (pipefd [1]) < 0
		1291	)
885	abort (); /*D*/	1292	abort (); /*D*/
886		1293
887	close_pipe = pipefd [0];	1294	close_fd = pipefd [0];
888	}	1295	}
889		1296
890	req->type = EIO_DUP2;	1297	req->type = EIO_DUP2;
891	req->int1 = close_pipe;	1298	req->int1 = close_fd;
892	req->sv2 = newSVsv (fh);	1299	req->sv2 = newSVsv (fh);
893	req->int2 = fd;	1300	req->int2 = fd;
894		1301
895	REQ_SEND (req);	1302	REQ_SEND;
896	}	1303	}
897		1304
898	void	1305	void
		1306	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1307	PPCODE:
		1308	{
		1309	int fd = s_fileno_croak (fh, 0);
		1310	dREQ;
		1311
		1312	req->type = EIO_SEEK;
		1313	req->sv1 = newSVsv (fh);
		1314	req->int1 = fd;
		1315	req->offs = SvVAL64 (offset);
		1316	req->int2 = whence;
		1317
		1318	REQ_SEND;
		1319	}
		1320
		1321	void
899	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1322	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
900	ALIAS:	1323	ALIAS:
901	aio_read = EIO_READ	1324	aio_read = EIO_READ
902	aio_write = EIO_WRITE	1325	aio_write = EIO_WRITE
903	PROTOTYPE: $$$$$;$
904	PPCODE:	1326	PPCODE:
905	{	1327	{
906	STRLEN svlen;	1328	STRLEN svlen;
907	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1329	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
908	char *svptr = SvPVbyte (data, svlen);	1330	char *svptr = SvPVbyte (data, svlen);
…		…
921	len = svlen - dataoffset;	1343	len = svlen - dataoffset;
922	}	1344	}
923	else	1345	else
924	{	1346	{
925	/* read: check type and grow scalar as necessary */	1347	/* read: check type and grow scalar as necessary */
926	SvUPGRADE (data, SVt_PV);	1348	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
927	svptr = SvGROW (data, len + dataoffset + 1);	1349	svptr = sv_grow (data, len + dataoffset + 1);
		1350	else if (SvCUR (data) < len + dataoffset)
		1351	croak ("length + dataoffset outside of scalar, and cannot grow");
928	}	1352	}
929		1353
930	{	1354	{
931	dREQ;	1355	dREQ;
932		1356
…		…
948	REQ_SEND;	1372	REQ_SEND;
949	}	1373	}
950	}	1374	}
951		1375
952	void	1376	void
953	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1377	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
954	PROTOTYPE: $$;$	1378	ALIAS:
		1379	aio_ioctl = EIO_IOCTL
		1380	aio_fcntl = EIO_FCNTL
955	PPCODE:	1381	PPCODE:
956	{	1382	{
957	SV *data;	1383	int fd = s_fileno_croak (fh, 0);
		1384	char *svptr;
		1385
		1386	if (SvPOK (arg) || !SvNIOK (arg))
		1387	{
		1388	STRLEN svlen;
		1389	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1390	#ifdef IOCPARM_LEN
		1391	STRLEN need = IOCPARM_LEN (request);
		1392	#else
		1393	STRLEN need = 256;
		1394	#endif
		1395
		1396	if (svlen < need)
		1397	svptr = SvGROW (arg, need);
		1398	}
		1399	else
		1400	svptr = (char *)SvIV (arg);
		1401
		1402	{
		1403	dREQ;
		1404
		1405	req->type = ix;
		1406	req->sv1 = newSVsv (fh);
		1407	req->int1 = fd;
		1408	req->int2 = (long)request;
		1409	req->sv2 = SvREFCNT_inc (arg);
		1410	req->ptr2 = svptr;
		1411
		1412	REQ_SEND;
		1413	}
		1414	}
		1415
		1416	void
		1417	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1418	ALIAS:
		1419	aio_readlink = EIO_READLINK
		1420	aio_realpath = EIO_REALPATH
		1421	PPCODE:
		1422	{
958	dREQ;	1423	dREQ;
959		1424
960	req->type = EIO_READLINK;	1425	req->type = ix;
961	req->sv1 = newSVsv (path);	1426	req_set_path1 (req, pathname);
962	req->ptr1 = SvPVbyte_nolen (req->sv1);
963		1427
964	REQ_SEND;	1428	REQ_SEND;
965	}	1429	}
966		1430
967	void	1431	void
968	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1432	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
969	PROTOTYPE: $$$$;$
970	PPCODE:	1433	PPCODE:
971	{	1434	{
972	int ifd = s_fileno_croak (in_fh , 0);	1435	int ifd = s_fileno_croak (in_fh , 0);
973	int ofd = s_fileno_croak (out_fh, 1);	1436	int ofd = s_fileno_croak (out_fh, 1);
974	dREQ;	1437	dREQ;
975		1438
976	req->type = EIO_SENDFILE;	1439	req->type = EIO_SENDFILE;
977	req->sv1 = newSVsv (out_fh);	1440	req->sv1 = newSVsv (out_fh);
978	req->int1 = ofd;	1441	req->int1 = ofd;
…		…
983		1446
984	REQ_SEND;	1447	REQ_SEND;
985	}	1448	}
986		1449
987	void	1450	void
988	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1451	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
989	PROTOTYPE: $$$;$
990	PPCODE:	1452	PPCODE:
991	{	1453	{
992	int fd = s_fileno_croak (fh, 0);	1454	int fd = s_fileno_croak (fh, 0);
993	dREQ;	1455	dREQ;
994		1456
995	req->type = EIO_READAHEAD;	1457	req->type = EIO_READAHEAD;
996	req->sv1 = newSVsv (fh);	1458	req->sv1 = newSVsv (fh);
997	req->int1 = fd;	1459	req->int1 = fd;
…		…
1000		1462
1001	REQ_SEND;	1463	REQ_SEND;
1002	}	1464	}
1003		1465
1004	void	1466	void
1005	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1467	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1006	ALIAS:	1468	ALIAS:
1007	aio_stat = EIO_STAT	1469	aio_stat = EIO_STAT
1008	aio_lstat = EIO_LSTAT	1470	aio_lstat = EIO_LSTAT
1009	aio_statvfs = EIO_STATVFS	1471	aio_statvfs = EIO_STATVFS
1010	PPCODE:	1472	PPCODE:
1011	{	1473	{
1012	dREQ;	1474	dREQ;
1013		1475
1014	req->sv1 = newSVsv (fh_or_path);	1476	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1015
1016	if (SvPOK (req->sv1))
1017	{
1018	req->type = ix;
1019	req->ptr1 = SvPVbyte_nolen (req->sv1);
1020	}
1021	else
1022	{
1023	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1024	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1025	}
1026		1477
1027	REQ_SEND;	1478	REQ_SEND;
1028	}	1479	}
1029		1480
		1481	UV
		1482	major (UV dev)
		1483	ALIAS:
		1484	minor = 1
		1485	CODE:
		1486	RETVAL = ix ? minor (dev) : major (dev);
		1487	OUTPUT:
		1488	RETVAL
		1489
		1490	UV
		1491	makedev (UV maj, UV min)
		1492	CODE:
		1493	RETVAL = makedev (maj, min);
		1494	OUTPUT:
		1495	RETVAL
		1496
1030	void	1497	void
1031	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1498	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1032	PPCODE:	1499	PPCODE:
1033	{	1500	{
1034	dREQ;	1501	dREQ;
1035		1502
1036	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1503	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1037	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1504	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1038	req->sv1 = newSVsv (fh_or_path);	1505	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1039
1040	if (SvPOK (req->sv1))
1041	{
1042	req->type = EIO_UTIME;
1043	req->ptr1 = SvPVbyte_nolen (req->sv1);
1044	}
1045	else
1046	{
1047	req->type = EIO_FUTIME;
1048	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1049	}
1050		1506
1051	REQ_SEND;	1507	REQ_SEND;
1052	}	1508	}
1053		1509
1054	void	1510	void
1055	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1511	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1056	PPCODE:	1512	PPCODE:
1057	{	1513	{
1058	dREQ;	1514	dREQ;
1059		1515
1060	req->sv1 = newSVsv (fh_or_path);
1061	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1516	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1062		1517	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1063	if (SvPOK (req->sv1))
1064	{
1065	req->type = EIO_TRUNCATE;
1066	req->ptr1 = SvPVbyte_nolen (req->sv1);
1067	}
1068	else
1069	{
1070	req->type = EIO_FTRUNCATE;
1071	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1072	}
1073		1518
1074	REQ_SEND;	1519	REQ_SEND;
1075	}	1520	}
1076		1521
1077	void	1522	void
1078	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1523	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1079	ALIAS:
1080	aio_chmod = EIO_CHMOD
1081	aio_mkdir = EIO_MKDIR
1082	PPCODE:	1524	PPCODE:
1083	{	1525	{
1084	dREQ;	1526	dREQ;
1085		1527
1086	req->int2 = mode;	1528	req->int2 = mode;
1087	req->sv1 = newSVsv (fh_or_path);	1529	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1088
1089	if (SvPOK (req->sv1))
1090	{
1091	req->type = ix;
1092	req->ptr1 = SvPVbyte_nolen (req->sv1);
1093	}
1094	else
1095	{
1096	req->type = EIO_FCHMOD;
1097	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1098	}
1099		1530
1100	REQ_SEND;	1531	REQ_SEND;
1101	}	1532	}
1102		1533
1103	void	1534	void
1104	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1535	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1105	PPCODE:	1536	PPCODE:
1106	{	1537	{
1107	dREQ;	1538	dREQ;
1108		1539
1109	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1540	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1110	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1541	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1111	req->sv1 = newSVsv (fh_or_path);	1542	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1112
1113	if (SvPOK (req->sv1))
1114	{
1115	req->type = EIO_CHOWN;
1116	req->ptr1 = SvPVbyte_nolen (req->sv1);
1117	}
1118	else
1119	{
1120	req->type = EIO_FCHOWN;
1121	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1122	}
1123		1543
1124	REQ_SEND;	1544	REQ_SEND;
1125	}	1545	}
1126		1546
1127	void	1547	void
1128	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1548	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1129	PPCODE:	1549	PPCODE:
1130	{	1550	{
1131	dREQ;	1551	dREQ;
1132		1552
1133	req->type = EIO_READDIR;	1553	req->type = EIO_READDIR;
1134	req->sv1 = newSVsv (pathname);
1135	req->ptr1 = SvPVbyte_nolen (req->sv1);
1136	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1554	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1137		1555
1138	if (flags & EIO_READDIR_DENTS)	1556	if (flags & EIO_READDIR_DENTS)
1139	req->int1 |= EIO_READDIR_CUSTOM2;	1557	req->int1 |= EIO_READDIR_CUSTOM2;
1140		1558
		1559	req_set_path1 (req, pathname);
		1560
1141	REQ_SEND;	1561	REQ_SEND;
1142	}	1562	}
1143		1563
1144	void	1564	void
		1565	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1566	PPCODE:
		1567	{
		1568	dREQ;
		1569
		1570	req->type = EIO_MKDIR;
		1571	req->int2 = mode;
		1572	req_set_path1 (req, pathname);
		1573
		1574	REQ_SEND;
		1575	}
		1576
		1577	void
1145	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1578	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1146	ALIAS:	1579	ALIAS:
1147	aio_unlink = EIO_UNLINK	1580	aio_unlink = EIO_UNLINK
1148	aio_rmdir = EIO_RMDIR	1581	aio_rmdir = EIO_RMDIR
1149	aio_readdir = EIO_READDIR	1582	aio_readdir = EIO_READDIR
1150	PPCODE:	1583	PPCODE:
1151	{	1584	{
1152	dREQ;	1585	dREQ;
1153		1586
1154	req->type = ix;	1587	req->type = ix;
1155	req->sv1 = newSVsv (pathname);	1588	req_set_path1 (req, pathname);
1156	req->ptr1 = SvPVbyte_nolen (req->sv1);
1157		1589
1158	REQ_SEND;	1590	REQ_SEND;
1159	}	1591	}
1160		1592
1161	void	1593	void
1162	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1594	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1163	ALIAS:	1595	ALIAS:
1164	aio_link = EIO_LINK	1596	aio_link = EIO_LINK
1165	aio_symlink = EIO_SYMLINK	1597	aio_symlink = EIO_SYMLINK
1166	aio_rename = EIO_RENAME	1598	aio_rename = EIO_RENAME
1167	PPCODE:	1599	PPCODE:
1168	{	1600	{
		1601	eio_wd wd2 = 0;
1169	dREQ;	1602	dREQ;
1170		1603
1171	req->type = ix;	1604	req->type = ix;
1172	req->sv1 = newSVsv (oldpath);	1605	req_set_path1 (req, oldpath);
1173	req->ptr1 = SvPVbyte_nolen (req->sv1);	1606	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1174	req->sv2 = newSVsv (newpath);	1607	req->int3 = (long)wd2;
1175	req->ptr2 = SvPVbyte_nolen (req->sv2);
1176		1608
1177	REQ_SEND;	1609	REQ_SEND;
1178	}	1610	}
1179		1611
1180	void	1612	void
		1613	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1614	PPCODE:
		1615	{
		1616	eio_wd wd2 = 0;
		1617	dREQ;
		1618
		1619	req->type = EIO_RENAME;
		1620	req_set_path1 (req, oldpath);
		1621	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1622	req->int2 = flags;
		1623	req->int3 = (long)wd2;
		1624
		1625	REQ_SEND;
		1626	}
		1627
		1628	void
1181	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1629	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1182	PPCODE:	1630	PPCODE:
1183	{	1631	{
1184	dREQ;	1632	dREQ;
1185		1633
1186	req->type = EIO_MKNOD;	1634	req->type = EIO_MKNOD;
1187	req->sv1 = newSVsv (pathname);
1188	req->ptr1 = SvPVbyte_nolen (req->sv1);
1189	req->int2 = (mode_t)mode;	1635	req->int2 = (mode_t)mode;
1190	req->offs = dev;	1636	req->offs = dev;
		1637	req_set_path1 (req, pathname);
1191		1638
1192	REQ_SEND;	1639	REQ_SEND;
1193	}	1640	}
1194		1641
1195	void	1642	void
1196	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1643	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1197	ALIAS:	1644	ALIAS:
1198	aio_mtouch = EIO_MTOUCH	1645	aio_mtouch = EIO_MTOUCH
1199	aio_msync = EIO_MSYNC	1646	aio_msync = EIO_MSYNC
1200	PROTOTYPE: $$$$;$
1201	PPCODE:	1647	PPCODE:
1202	{	1648	{
1203	STRLEN svlen;	1649	STRLEN svlen;
		1650	char *svptr = SvPVbyte (data, svlen);
1204	UV len = SvUV (length);	1651	UV len = SvUV (length);
1205	char *svptr = SvPVbyte (data, svlen);	1652
		1653	if (flags < 0)
		1654	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1206		1655
1207	if (offset < 0)	1656	if (offset < 0)
1208	offset += svlen;	1657	offset += svlen;
1209		1658
1210	if (offset < 0 || offset > svlen)	1659	if (offset < 0 || offset > svlen)
…		…
1215		1664
1216	{	1665	{
1217	dREQ;	1666	dREQ;
1218		1667
1219	req->type = ix;	1668	req->type = ix;
1220	req->size = len;
1221	req->sv2 = SvREFCNT_inc (data);	1669	req->sv2 = SvREFCNT_inc (data);
1222	req->ptr2 = (char *)svptr + offset;	1670	req->ptr2 = (char *)svptr + offset;
		1671	req->size = len;
1223	req->int1 = flags;	1672	req->int1 = flags;
1224		1673
1225	REQ_SEND;	1674	REQ_SEND;
1226	}	1675	}
1227	}	1676	}
1228		1677
1229	void	1678	void
		1679	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1680	PPCODE:
		1681	{
		1682	STRLEN svlen;
		1683	char *svptr = SvPVbyte (data, svlen);
		1684	UV len = SvUV (length);
		1685
		1686	if (offset < 0)
		1687	offset += svlen;
		1688
		1689	if (offset < 0 || offset > svlen)
		1690	croak ("offset outside of scalar");
		1691
		1692	if (!SvOK (length) || len + offset > svlen)
		1693	len = svlen - offset;
		1694
		1695	{
		1696	dREQ;
		1697
		1698	req->type = EIO_MLOCK;
		1699	req->sv2 = SvREFCNT_inc (data);
		1700	req->ptr2 = (char *)svptr + offset;
		1701	req->size = len;
		1702
		1703	REQ_SEND;
		1704	}
		1705	}
		1706
		1707	void
		1708	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1709	PPCODE:
		1710	{
		1711	dREQ;
		1712
		1713	req->type = EIO_MLOCKALL;
		1714	req->int1 = flags;
		1715
		1716	REQ_SEND;
		1717	}
		1718
		1719	void
		1720	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1721	PPCODE:
		1722	{
		1723	int fd = s_fileno_croak (fh, 0);
		1724	dREQ;
		1725
		1726	req->type = EIO_CUSTOM;
		1727	req->sv1 = newSVsv (fh);
		1728	req->int1 = fd;
		1729
		1730	req->feed = fiemap;
		1731	#if HAVE_FIEMAP
		1732	/* keep our fingers crossed that the next two types are 64 bit */
		1733	req->offs = start;
		1734	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1735	req->int2 = flags;
		1736	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1737	#endif
		1738
		1739	REQ_SEND;
		1740	}
		1741
		1742	void
1230	aio_busy (double delay, SV *callback=&PL_sv_undef)	1743	aio_busy (double delay, SV *callback = &PL_sv_undef)
1231	PPCODE:	1744	PPCODE:
1232	{	1745	{
1233	dREQ;	1746	dREQ;
1234		1747
1235	req->type = EIO_BUSY;	1748	req->type = EIO_BUSY;
…		…
1237		1750
1238	REQ_SEND;	1751	REQ_SEND;
1239	}	1752	}
1240		1753
1241	void	1754	void
1242	aio_group (SV *callback=&PL_sv_undef)	1755	aio_group (SV *callback = &PL_sv_undef)
1243	PROTOTYPE: ;$
1244	PPCODE:	1756	PPCODE:
1245	{	1757	{
1246	dREQ;	1758	dREQ;
1247		1759
1248	req->type = EIO_GROUP;	1760	req->type = EIO_GROUP;
1249		1761
		1762	PUTBACK;
1250	req_submit (req);	1763	req_submit (req);
		1764	SPAGAIN;
		1765
1251	XPUSHs (req_sv (req, aio_grp_stash));	1766	XPUSHs (req_sv (req, aio_grp_stash));
1252	}	1767	}
1253		1768
1254	void	1769	void
1255	aio_nop (SV *callback=&PL_sv_undef)	1770	aio_nop (SV *callback = &PL_sv_undef)
1256	ALIAS:	1771	ALIAS:
1257	aio_nop = EIO_NOP	1772	aio_nop = EIO_NOP
1258	aio_sync = EIO_SYNC	1773	aio_sync = EIO_SYNC
1259	PPCODE:	1774	PPCODE:
1260	{	1775	{
…		…
1264		1779
1265	REQ_SEND;	1780	REQ_SEND;
1266	}	1781	}
1267		1782
1268	int	1783	int
1269	aioreq_pri (int pri = 0)	1784	aioreq_pri (int pri = NO_INIT)
1270	PROTOTYPE: ;$
1271	CODE:	1785	CODE:
1272	RETVAL = next_pri;	1786	RETVAL = next_pri;
1273	if (items > 0)	1787	if (items > 0)
1274	{	1788	{
1275	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1789	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1287	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1801	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1288	next_pri = nice;	1802	next_pri = nice;
1289		1803
1290	void	1804	void
1291	flush ()	1805	flush ()
1292	PROTOTYPE:
1293	CODE:	1806	CODE:
1294	while (eio_nreqs ())	1807	while (eio_nreqs ())
1295	{	1808	{
1296	poll_wait ();	1809	poll_wait ();
1297	poll_cb ();	1810	poll_cb ();
1298	}	1811	}
1299		1812
1300	int	1813	int
1301	poll()	1814	poll ()
1302	PROTOTYPE:
1303	CODE:	1815	CODE:
1304	poll_wait ();	1816	poll_wait ();
1305	RETVAL = poll_cb ();	1817	RETVAL = poll_cb ();
1306	OUTPUT:	1818	OUTPUT:
1307	RETVAL	1819	RETVAL
1308		1820
1309	int	1821	int
1310	poll_fileno()	1822	poll_fileno ()
1311	PROTOTYPE:
1312	CODE:	1823	CODE:
1313	RETVAL = s_epipe_fd (&respipe);	1824	RETVAL = s_epipe_fd (&respipe);
1314	OUTPUT:	1825	OUTPUT:
1315	RETVAL	1826	RETVAL
1316		1827
1317	int	1828	int
1318	poll_cb(...)	1829	poll_cb (...)
1319	PROTOTYPE:	1830	PROTOTYPE:
1320	CODE:	1831	CODE:
1321	RETVAL = poll_cb ();	1832	RETVAL = poll_cb ();
1322	OUTPUT:	1833	OUTPUT:
1323	RETVAL	1834	RETVAL
1324		1835
1325	void	1836	void
1326	poll_wait()	1837	poll_wait ()
1327	PROTOTYPE:
1328	CODE:	1838	CODE:
1329	poll_wait ();	1839	poll_wait ();
1330		1840
1331	int	1841	int
1332	nreqs()	1842	nreqs ()
1333	PROTOTYPE:
1334	CODE:	1843	CODE:
1335	RETVAL = eio_nreqs ();	1844	RETVAL = eio_nreqs ();
1336	OUTPUT:	1845	OUTPUT:
1337	RETVAL	1846	RETVAL
1338		1847
1339	int	1848	int
1340	nready()	1849	nready ()
1341	PROTOTYPE:
1342	CODE:	1850	CODE:
1343	RETVAL = eio_nready ();	1851	RETVAL = eio_nready ();
1344	OUTPUT:	1852	OUTPUT:
1345	RETVAL	1853	RETVAL
1346		1854
1347	int	1855	int
1348	npending()	1856	npending ()
1349	PROTOTYPE:
1350	CODE:	1857	CODE:
1351	RETVAL = eio_npending ();	1858	RETVAL = eio_npending ();
1352	OUTPUT:	1859	OUTPUT:
1353	RETVAL	1860	RETVAL
1354		1861
1355	int	1862	int
1356	nthreads()	1863	nthreads ()
1357	PROTOTYPE:
1358	CODE:	1864	CODE:
1359	RETVAL = eio_nthreads ();	1865	RETVAL = eio_nthreads ();
1360	OUTPUT:	1866	OUTPUT:
1361	RETVAL	1867	RETVAL
1362		1868
1363	int	1869	int
1364	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1870	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1365	PROTOTYPE: $$$$
1366	CODE:	1871	CODE:
1367	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1368	RETVAL = posix_fadvise (fh, offset, length, advice);	1872	RETVAL = posix_fadvise (fh, offset, length, advice);
1369	#else
1370	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1371	#endif
1372	OUTPUT:	1873	OUTPUT:
1373	RETVAL	1874	RETVAL
1374		1875
1375	ssize_t	1876	IV
1376	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1877	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1377	PROTOTYPE: $$$$
1378	CODE:	1878	CODE:
1379	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1879	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1380	OUTPUT:	1880	OUTPUT:
1381	RETVAL	1881	RETVAL
1382		1882
1383	void	1883	void
1384	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1884	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1385	PROTOTYPE: $$$$$;$
1386	PPCODE:	1885	PPCODE:
1387	sv_unmagic (scalar, MMAP_MAGIC);	1886	sv_unmagic (scalar, MMAP_MAGIC);
1388	{	1887	{
1389	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1888	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1390	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1889	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
…		…
1413	XSRETURN_YES;	1912	XSRETURN_YES;
1414	}	1913	}
1415		1914
1416	void	1915	void
1417	munmap (SV *scalar)	1916	munmap (SV *scalar)
1418	PROTOTYPE: $
1419	CODE:	1917	CODE:
1420	sv_unmagic (scalar, MMAP_MAGIC);	1918	sv_unmagic (scalar, MMAP_MAGIC);
1421		1919
1422	int	1920	int
1423	mlockall (int flags)	1921	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1424	PROTOTYPE: $	1922	ALIAS:
		1923	mprotect = 1
1425	CODE:	1924	CODE:
		1925	{
		1926	STRLEN svlen;
		1927	void *addr = SvPVbyte (scalar, svlen);
		1928	STRLEN len = SvUV (length);
		1929
		1930	if (offset < 0)
		1931	offset += svlen;
		1932
		1933	if (offset < 0 || offset > svlen)
		1934	croak ("offset outside of scalar");
		1935
		1936	if (!SvOK (length) || len + offset > svlen)
		1937	len = svlen - offset;
		1938
		1939	addr = (void *)(((intptr_t)addr) + offset);
		1940	eio_page_align (&addr, &len);
		1941
		1942	switch (ix)
		1943	{
		1944	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1945	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1946	}
		1947	}
		1948	OUTPUT:
		1949	RETVAL
		1950
		1951	int
		1952	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		1953	CODE:
		1954	{
		1955	STRLEN svlen;
		1956	void *addr = SvPVbyte (scalar, svlen);
		1957	size_t len = SvUV (length);
		1958
		1959	if (offset < 0)
		1960	offset += svlen;
		1961
		1962	if (offset < 0 || offset > svlen)
		1963	croak ("offset outside of scalar");
		1964
		1965	if (!SvOK (length) || len + offset > svlen)
		1966	len = svlen - offset;
		1967
		1968	addr = (void *)(((intptr_t)addr) + offset);
		1969	eio_page_align (&addr, &len);
1426	#if _POSIX_MEMLOCK	1970	#if _POSIX_MEMLOCK_RANGE
1427	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	1971	RETVAL = munlock (addr, len);
1428	extern int mallopt (int, int);
1429	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1430	#endif
1431	mlockall (flags);
1432	#else	1972	#else
1433	RETVAL = -1;	1973	RETVAL = EIO_ENOSYS ();
1434	errno = ENOSYS;
1435	#endif	1974	#endif
		1975	}
1436	OUTPUT:	1976	OUTPUT:
1437	RETVAL	1977	RETVAL
1438		1978
1439	int	1979	int
1440	munlockall ()	1980	munlockall ()
1441	PROTOTYPE:
1442	CODE:	1981	CODE:
1443	#if _POSIX_MEMLOCK	1982	#if _POSIX_MEMLOCK
1444	munlockall ();	1983	munlockall ();
1445	#else	1984	#else
1446	RETVAL = -1;	1985	RETVAL = EIO_ENOSYS ();
1447	errno = ENOSYS;
1448	#endif	1986	#endif
1449	OUTPUT:	1987	OUTPUT:
1450	RETVAL	1988	RETVAL
		1989
		1990	int
		1991	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		1992	CODE:
		1993	{
		1994	#if HAVE_LINUX_SPLICE
		1995	loff_t off_in_, off_out_;
		1996	RETVAL = splice (
		1997	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		1998	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		1999	length, flags
		2000	);
		2001	#else
		2002	RETVAL = EIO_ENOSYS ();
		2003	#endif
		2004	}
		2005	OUTPUT:
		2006	RETVAL
		2007
		2008	int
		2009	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2010	CODE:
		2011	#if HAVE_LINUX_SPLICE
		2012	RETVAL = tee (rfh, wfh, length, flags);
		2013	#else
		2014	RETVAL = EIO_ENOSYS ();
		2015	#endif
		2016	OUTPUT:
		2017	RETVAL
		2018
		2019	int
		2020	pipesize (aio_rfd rfh, int new_size = -1)
		2021	PROTOTYPE: $;$
		2022	CODE:
		2023	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2024	if (new_size >= 0)
		2025	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2026	else
		2027	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2028	#else
		2029	errno = ENOSYS;
		2030	RETVAL = -1;
		2031	#endif
		2032	OUTPUT:
		2033	RETVAL
		2034
		2035	void
		2036	pipe2 (int flags = 0)
		2037	PROTOTYPE: ;$
		2038	PPCODE:
		2039	{
		2040	int fd[2];
		2041	int res;
		2042
		2043	if (flags)
		2044	#if HAVE_PIPE2
		2045	res = pipe2 (fd, flags);
		2046	#else
		2047	res = (errno = ENOSYS, -1);
		2048	#endif
		2049	else
		2050	res = pipe (fd);
		2051
		2052	if (!res)
		2053	{
		2054	EXTEND (SP, 2);
		2055	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2056	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2057	}
		2058	}
		2059
		2060	UV
		2061	get_fdlimit ()
		2062	CODE:
		2063	#if HAVE_RLIMITS
		2064	struct rlimit rl;
		2065	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2066	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2067	#endif
		2068	XSRETURN_UNDEF;
		2069	OUTPUT:
		2070	RETVAL
		2071
		2072	void
		2073	min_fdlimit (UV limit = 0x7fffffffU)
		2074	CODE:
		2075	{
		2076	#if HAVE_RLIMITS
		2077	struct rlimit rl;
		2078	rlim_t orig_rlim_max;
		2079	UV bit;
		2080
		2081	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2082	goto fail;
		2083
		2084	if (rl.rlim_cur == RLIM_INFINITY)
		2085	XSRETURN_YES;
		2086
		2087	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2088
		2089	if (rl.rlim_cur < limit)
		2090	{
		2091	rl.rlim_cur = limit;
		2092
		2093	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2094	rl.rlim_max = rl.rlim_cur;
		2095	}
		2096
		2097	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2098	XSRETURN_YES;
		2099
		2100	if (errno == EPERM)
		2101	{
		2102	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2103	/* our limit overflows a system-wide limit */
		2104	/* try an adaptive algorithm, but do not lower the hardlimit */
		2105	rl.rlim_max = 0;
		2106	for (bit = 0x40000000U; bit; bit >>= 1)
		2107	{
		2108	rl.rlim_max |= bit;
		2109	rl.rlim_cur = rl.rlim_max;
		2110
		2111	/* nevr decrease the hard limit */
		2112	if (rl.rlim_max < orig_rlim_max)
		2113	break;
		2114
		2115	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2116	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2117	}
		2118
		2119	/* now, raise the soft limit to the max permitted */
		2120	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2121	{
		2122	rl.rlim_cur = rl.rlim_max;
		2123	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2124	errno = EPERM;
		2125	}
		2126	}
		2127	#endif
		2128	fail:
		2129	XSRETURN_UNDEF;
		2130	}
1451		2131
1452	void _on_next_submit (SV *cb)	2132	void _on_next_submit (SV *cb)
1453	CODE:	2133	CODE:
1454	SvREFCNT_dec (on_next_submit);	2134	SvREFCNT_dec (on_next_submit);
1455	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2135	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1456		2136
1457	PROTOTYPES: DISABLE	2137	PROTOTYPES: DISABLE
1458		2138
		2139	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2140
		2141	BOOT:
		2142	{
		2143	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2144	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2145	}
		2146
		2147	void
		2148	DESTROY (SV *self)
		2149	CODE:
		2150	{
		2151	aio_wd wd = SvAIO_WD (self);
		2152	#if HAVE_AT
		2153	{
		2154	SV *callback = &PL_sv_undef;
		2155	dREQ; /* clobbers next_pri :/ */
		2156	next_pri = req->pri; /* restore next_pri */
		2157	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2158	req->type = EIO_WD_CLOSE;
		2159	req->wd = wd;
		2160	REQ_SEND;
		2161	}
		2162	#else
		2163	eio_wd_close_sync (wd);
		2164	#endif
		2165	}
		2166
1459	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2167	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1460		2168
1461	void	2169	void
1462	cancel (aio_req_ornot req)	2170	cancel (aio_req_ornot req)
1463	CODE:	2171	CODE:
1464	eio_cancel (req);	2172	eio_cancel (req);
1465		2173
1466	void	2174	void
1467	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2175	cb (aio_req_ornot req, SV *callback = NO_INIT)
1468	PPCODE:	2176	PPCODE:
1469	{	2177	{
1470	if (GIMME_V != G_VOID)	2178	if (GIMME_V != G_VOID)
1471	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2179	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1472		2180
1473	if (items > 1)	2181	if (items > 1)
1474	{	2182	{
1475	SV *cb_cv =get_cb (callback);	2183	SV *cb_cv = get_cb (callback);
1476		2184
1477	SvREFCNT_dec (req->callback);	2185	SvREFCNT_dec (req->callback);
1478	req->callback = SvREFCNT_inc (cb_cv);	2186	req->callback = SvREFCNT_inc (cb_cv);
1479	}	2187	}
1480	}	2188	}
…		…
1537	limit (aio_req grp, int limit)	2245	limit (aio_req grp, int limit)
1538	CODE:	2246	CODE:
1539	eio_grp_limit (grp, limit);	2247	eio_grp_limit (grp, limit);
1540		2248
1541	void	2249	void
1542	feed (aio_req grp, SV *callback=&PL_sv_undef)	2250	feed (aio_req grp, SV *callback = &PL_sv_undef)
1543	CODE:	2251	CODE:
1544	{	2252	{
1545	SvREFCNT_dec (grp->sv2);	2253	SvREFCNT_dec (grp->sv2);
1546	grp->sv2 = newSVsv (callback);	2254	grp->sv2 = newSVsv (callback);
1547	grp->feed = aio_grp_feed;	2255	grp->feed = aio_grp_feed;

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