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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.182 by root, Thu May 19 22:57:04 2011 UTC vs.
Revision 1.254 by root, Tue Feb 20 05:23:47 2018 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_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22	# include <sys/mman.h>	21	# include <sys/mman.h>
23	#endif	22	#endif
24		23
		24	/* 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
		36	#endif
		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_EVENTFD
		112	# include <sys/eventfd.h>
		113	#endif
		114
		115	#if HAVE_TIMERFD
		116	# include <sys/timerfd.h>
		117	#endif
		118
		119	#if HAVE_RLIMITS
		120	#include <sys/time.h>
		121	#include <sys/resource.h>
		122	#endif
		123
109	typedef SV SV8; /* byte-sv, used for argument-checking */	124	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	125	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	126	typedef int aio_wfd; /* write file descriptor */
112		127
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	128	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		129
115	#define EIO_REQ_MEMBERS \	130	#define EIO_REQ_MEMBERS \
116	SV *callback; \	131	SV *callback; \
117	SV *sv1, *sv2; \	132	SV *sv1, *sv2; \
		133	SV *sv3, *sv4; \
118	STRLEN stroffset; \	134	STRLEN stroffset; \
119	SV *self;	135	SV *self;
120		136
121	#define EIO_NO_WRAPPERS 1	137	#define EIO_NO_WRAPPERS 1
122		138
123	#include "libeio/config.h"
124	#include "libeio/eio.h"	139	#include "libeio/eio.h"
125		140
126	/* Linux/others */	141	static int req_invoke (eio_req *req);
127	#ifndef O_ASYNC	142	#define EIO_FINISH(req) req_invoke (req)
128	# define O_ASYNC 0	143	static void req_destroy (eio_req *grp);
129	#endif	144	#define EIO_DESTROY(req) req_destroy (req)
130	#ifndef O_DIRECT
131	# define O_DIRECT 0
132	#endif
133	#ifndef O_NOATIME
134	# define O_NOATIME 0
135	#endif
136		145
137	/* POSIX */	146	#include "libeio/eio.c"
138	#ifndef O_CLOEXEC
139	# define O_CLOEXEC 0
140	#endif
141	#ifndef O_NOFOLLOW
142	# define O_NOFOLLOW 0
143	#endif
144	#ifndef O_NOCTTY
145	# define O_NOCTTY 0
146	#endif
147	#ifndef O_NONBLOCK
148	# define O_NONBLOCK 0
149	#endif
150	#ifndef O_EXEC
151	# define O_EXEC 0
152	#endif
153	#ifndef O_SEARCH
154	# define O_SEARCH 0
155	#endif
156	#ifndef O_DIRECTORY
157	# define O_DIRECTORY 0
158	#endif
159	#ifndef O_DSYNC
160	# define O_DSYNC 0
161	#endif
162	#ifndef O_RSYNC
163	# define O_RSYNC 0
164	#endif
165	#ifndef O_SYNC
166	# define O_SYNC 0
167	#endif
168	#ifndef O_TTY_INIT
169	# define O_TTY_INIT 0
170	#endif
171
172	#ifndef POSIX_FADV_NORMAL
173	# define POSIX_FADV_NORMAL 0
174	#endif
175	#ifndef POSIX_FADV_SEQUENTIAL
176	# define POSIX_FADV_SEQUENTIAL 0
177	#endif
178	#ifndef POSIX_FADV_RANDOM
179	# define POSIX_FADV_RANDOM 0
180	#endif
181	#ifndef POSIX_FADV_NOREUSE
182	# define POSIX_FADV_NOREUSE 0
183	#endif
184	#ifndef POSIX_FADV_WILLNEED
185	# define POSIX_FADV_WILLNEED 0
186	#endif
187	#ifndef POSIX_FADV_DONTNEED
188	# define POSIX_FADV_DONTNEED 0
189	#endif
190		147
191	#if !HAVE_POSIX_FADVISE	148	#if !HAVE_POSIX_FADVISE
192	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	149	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
193	#endif	150	#endif
194		151
195	#ifndef POSIX_MADV_NORMAL
196	# define POSIX_MADV_NORMAL 0
197	#endif
198	#ifndef POSIX_MADV_SEQUENTIAL
199	# define POSIX_MADV_SEQUENTIAL 0
200	#endif
201	#ifndef POSIX_MADV_RANDOM
202	# define POSIX_MADV_RANDOM 0
203	#endif
204	#ifndef POSIX_MADV_WILLNEED
205	# define POSIX_MADV_WILLNEED 0
206	#endif
207	#ifndef POSIX_MADV_DONTNEED
208	# define POSIX_MADV_DONTNEED 0
209	#endif
210
211	#if !HAVE_POSIX_MADVISE	152	#if !HAVE_POSIX_MADVISE
212	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	153	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
213	#endif
214
215	#ifndef PROT_NONE
216	# define PROT_NONE 0
217	#endif
218	#ifndef PROT_READ
219	# define PROT_READ 0
220	#endif
221	#ifndef PROT_WRITE
222	# define PROT_READ 0
223	#endif
224	#ifndef PROT_EXEC
225	# define PROT_EXEC 0
226	#endif
227
228	#ifndef ST_NODEV
229	# define ST_NODEV 0
230	#endif
231	#ifndef ST_NOEXEC
232	# define ST_NOEXEC 0
233	#endif
234	#ifndef ST_SYNCHRONOUS
235	# define ST_SYNCHRONOUS 0
236	#endif
237	#ifndef ST_MANDLOCK
238	# define ST_MANDLOCK 0
239	#endif
240	#ifndef ST_WRITE
241	# define ST_WRITE 0
242	#endif
243	#ifndef ST_APPEND
244	# define ST_APPEND 0
245	#endif
246	#ifndef ST_IMMUTABLE
247	# define ST_IMMUTABLE 0
248	#endif
249	#ifndef ST_NOATIME
250	# define ST_NOATIME 0
251	#endif
252	#ifndef ST_NODIRATIME
253	# define ST_NODIRATIME 0
254	#endif
255	#ifndef ST_RELATIME
256	# define ST_RELATIME 0
257	#endif
258
259	#ifndef S_IFIFO
260	# define S_IFIFO 0
261	#endif
262	#ifndef S_IFCHR
263	# define S_IFCHR 0
264	#endif
265	#ifndef S_IFBLK
266	# define S_IFBLK 0
267	#endif
268	#ifndef S_IFLNK
269	# define S_IFLNK 0
270	#endif
271	#ifndef S_IFREG
272	# define S_IFREG 0
273	#endif
274	#ifndef S_IFDIR
275	# define S_IFDIR 0
276	#endif
277	#ifndef S_IFWHT
278	# define S_IFWHT 0
279	#endif
280	#ifndef S_IFSOCK
281	# define S_IFSOCK 0
282	#endif	154	#endif
283		155
284	#ifndef MAP_ANONYMOUS	156	#ifndef MAP_ANONYMOUS
285	# ifdef MAP_ANON	157	# ifdef MAP_ANON
286	# define MAP_ANONYMOUS MAP_ANON	158	# define MAP_ANONYMOUS MAP_ANON
287	# else	159	# else
288	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	160	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
289	# endif	161	# endif
290	#endif	162	#endif
291	#ifndef MAP_HUGETLB	163
292	# define MAP_HUGETLB 0	164	/* defines all sorts of constants to 0 unless they are already defined */
293	#endif	165	/* also provides const_iv_ and const_niv_ macros for them */
294	#ifndef MAP_LOCKED	166	#include "def0.h"
295	# define MAP_LOCKED 0
296	#endif
297	#ifndef MAP_NORESERVE
298	# define MAP_NORESERVE 0
299	#endif
300	#ifndef MAP_POPULATE
301	# define MAP_POPULATE 0
302	#endif
303	#ifndef MAP_NONBLOCK
304	# define MAP_NONBLOCK 0
305	#endif
306		167
307	#ifndef makedev	168	#ifndef makedev
308	# define makedev(maj,min) (((maj) << 8) | (min))	169	# define makedev(maj,min) (((maj) << 8) | (min))
309	#endif	170	#endif
310	#ifndef major	171	#ifndef major
…		…
312	#endif	173	#endif
313	#ifndef minor	174	#ifndef minor
314	# define minor(dev) ((dev) & 0xff)	175	# define minor(dev) ((dev) & 0xff)
315	#endif	176	#endif
316		177
317	#ifndef PAGESIZE	178	#if PAGESIZE <= 0
318	# define PAGESIZE sysconf (_SC_PAGESIZE)	179	# define PAGESIZE sysconf (_SC_PAGESIZE)
319	#endif	180	#endif
320		181
321	static int req_invoke (eio_req *req);	182	/*****************************************************************************/
322	#define EIO_FINISH(req) req_invoke (req)	183
323	static void req_destroy (eio_req *grp);	184	#if !_POSIX_MAPPED_FILES
324	#define EIO_DESTROY(req) req_destroy (req)	185	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		186	# define munmap(addr,length) EIO_ENOSYS ()
		187	#endif
		188
		189	#if !_POSIX_MEMORY_PROTECTION
		190	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		191	#endif
		192
		193	#define FOREIGN_MAGIC PERL_MAGIC_ext
		194
		195	static int ecb_cold
		196	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		197	{
		198	int old_errno = errno;
		199	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		200	errno = old_errno;
		201
		202	mg->mg_obj = 0; /* just in case */
		203
		204	SvREADONLY_off (sv);
		205
		206	if (SvPVX (sv) != mg->mg_ptr)
		207	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		208
		209	SvCUR_set (sv, 0);
		210	SvPVX (sv) = 0;
		211	SvOK_off (sv);
		212
		213	return 0;
		214	}
		215
		216	static MGVTBL mmap_vtbl = {
		217	0, 0, 0, 0, mmap_free
		218	};
		219
		220	static int ecb_cold
		221	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		222	{
		223	free (mg->mg_ptr);
		224	mg->mg_obj = 0; /* just in case */
		225
		226	SvREADONLY_off (sv);
		227
		228	if (SvPVX (sv) != mg->mg_ptr)
		229	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		230
		231	SvCUR_set (sv, 0);
		232	SvPVX (sv) = 0;
		233	SvOK_off (sv);
		234
		235	return 0;
		236	}
		237
		238	static MGVTBL sysfree_vtbl = {
		239	0, 0, 0, 0, sysfree_free
		240	};
		241
		242	/*****************************************************************************/
		243
		244	/* helper: set scalar to foreign ptr with custom free */
		245	static void
		246	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		247	{
		248	sv_force_normal (sv);
		249
		250	/* we store the length in mg_obj, as namlen is I32 :/ */
		251	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		252	->mg_obj = (SV *)length;
		253
		254	SvUPGRADE (sv, SVt_PV); /* nop... */
		255
		256	if (SvLEN (sv))
		257	Safefree (SvPVX (sv));
		258
		259	SvPVX (sv) = (char *)addr;
		260	SvCUR_set (sv, length);
		261	SvLEN_set (sv, 0);
		262	SvPOK_only (sv);
		263	}
		264
		265	static void
		266	sv_clear_foreign (SV *sv)
		267	{
		268	/* todo: iterate over magic and only free ours, but of course */
		269	/* the perl5porters will call that (correct) behaviour buggy */
		270	sv_unmagic (sv, FOREIGN_MAGIC);
		271	}
		272
		273	/*****************************************************************************/
		274
		275	static void
		276	fiemap (eio_req *req)
		277	{
		278	req->result = -1;
		279
		280	#if HAVE_FIEMAP
		281	/* assume some c99 */
		282	struct fiemap *fiemap = 0;
		283	size_t end_offset;
		284	int count = req->int3;
		285
		286	req->flags |= EIO_FLAG_PTR1_FREE;
		287
		288	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		289	/* increase in 3.5kb steps */
		290	if (count < 0)
		291	count = 8;
		292
		293	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		294	errno = ENOMEM;
		295	if (!fiemap)
		296	return;
		297
		298	req->ptr1 = fiemap;
		299
		300	fiemap->fm_start = req->offs;
		301	fiemap->fm_length = req->size;
		302	fiemap->fm_flags = req->int2;
		303	fiemap->fm_extent_count = count;
		304
		305	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		306	return;
		307
		308	if (req->int3 >= 0 /* not autosizing */
		309	|| !fiemap->fm_mapped_extents /* no more extents */
		310	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		311	goto done;
		312
		313	/* else we have to loop -
		314	* it would be tempting (actually I tried that first) to just query the
		315	* number of extents needed, but linux often feels like not returning all
		316	* extents, without telling us it left any out. this complicates
		317	* this quite a bit.
		318	*/
		319
		320	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		321
		322	for (;;)
		323	{
		324	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		325	char scratch[3072];
		326	struct fiemap *incmap = (struct fiemap *)scratch;
		327
		328	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		329	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		330	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		331	incmap->fm_flags = fiemap->fm_flags;
		332	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		333
		334	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		335	return;
		336
		337	if (!incmap->fm_mapped_extents)
		338	goto done;
		339
		340	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		341	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		342	errno = ENOMEM;
		343	if (!fiemap)
		344	return;
		345
		346	req->ptr1 = fiemap;
		347
		348	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		349	{
		350	struct fiemap_extent *e = incmap->fm_extents + count;
		351
		352	if (e->fe_logical + e->fe_length >= end_offset)
		353	goto done;
		354
		355	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		356
		357	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		358	goto done;
		359
		360	}
		361	}
		362
		363	done:
		364	req->result = 0;
		365
		366	#else
		367	errno = ENOSYS;
		368	#endif
		369	}
		370
		371	/*****************************************************************************/
325		372
326	enum {	373	enum {
327	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	374	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
328	};	375	};
329		376
330	#include "libeio/eio.c"
331
332	typedef eio_req *aio_req;	377	typedef eio_req *aio_req;
333	typedef eio_req *aio_req_ornot;	378	typedef eio_req *aio_req_ornot;
		379	typedef eio_wd aio_wd;
334		380
335	static SV *on_next_submit;	381	static SV *on_next_submit;
336	static int next_pri = EIO_PRI_DEFAULT;	382	static int next_pri = EIO_PRI_DEFAULT;
337	static int max_outstanding;	383	static int max_outstanding;
338		384
339	static s_epipe respipe;	385	static s_epipe respipe;
340		386
341	static void req_destroy (aio_req req);	387	static void req_destroy (aio_req req);
342	static void req_cancel (aio_req req);	388	static void req_cancel (aio_req req);
343		389
344	static void want_poll (void)	390	static void
		391	want_poll (void)
345	{	392	{
346	/* write a dummy byte to the pipe so fh becomes ready */	393	/* write a dummy byte to the pipe so fh becomes ready */
347	s_epipe_signal (&respipe);	394	s_epipe_signal (&respipe);
348	}	395	}
349		396
350	static void done_poll (void)	397	static void
		398	done_poll (void)
351	{	399	{
352	/* read any signals sent by the worker threads */	400	/* read any signals sent by the worker threads */
353	s_epipe_drain (&respipe);	401	s_epipe_drain (&respipe);
354	}	402	}
355		403
356	/* must be called at most once */	404	/* must be called at most once */
		405	static SV *
357	static SV *req_sv (aio_req req, HV *stash)	406	req_sv (aio_req req, HV *stash)
358	{	407	{
359	if (!req->self)	408	if (!req->self)
360	{	409	{
361	req->self = (SV *)newHV ();	410	req->self = (SV *)newHV ();
362	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	411	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
363	}	412	}
364		413
365	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	414	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
366	}	415	}
367		416
368	static aio_req SvAIO_REQ (SV *sv)	417	static SV *
		418	newSVaio_wd (aio_wd wd)
		419	{
		420	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		421	}
		422
		423	static aio_req
		424	SvAIO_REQ (SV *sv)
369	{	425	{
370	MAGIC *mg;	426	MAGIC *mg;
371		427
372	if (!SvROK (sv)	428	if (!SvROK (sv)
		429	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
373	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	430	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
374	&& SvSTASH (SvRV (sv)) != aio_req_stash	431	&& SvSTASH (SvRV (sv)) != aio_req_stash
375	&& !sv_derived_from (sv, "IO::AIO::REQ")))	432	&& !sv_derived_from (sv, "IO::AIO::REQ")))
376	croak ("object of class IO::AIO::REQ expected");	433	croak ("object of class IO::AIO::REQ expected");
377		434
378	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	435	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
379		436
380	return mg ? (aio_req)mg->mg_ptr : 0;	437	return mg ? (aio_req)mg->mg_ptr : 0;
381	}	438	}
382		439
		440	static aio_wd
		441	SvAIO_WD (SV *sv)
		442	{
		443	if (!SvROK (sv)
		444	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		445	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		446	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		447
		448	return (aio_wd)(long)SvIVX (SvRV (sv));
		449	}
		450
		451	static SV *
		452	newmortalFH (int fd, int flags)
		453	{
		454	if (fd < 0)
		455	return &PL_sv_undef;
		456
		457	GV *gv = (GV *)sv_newmortal ();
		458	char sym[64];
		459	int symlen;
		460
		461	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		462	gv_init (gv, aio_stash, sym, symlen, 0);
		463
		464	symlen = snprintf (
		465	sym,
		466	sizeof (sym),
		467	"%s&=%d",
		468	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		469	fd
		470	);
		471
		472	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		473	? (SV *)gv : &PL_sv_undef;
		474	}
		475
		476	static void
383	static void aio_grp_feed (aio_req grp)	477	aio_grp_feed (aio_req grp)
384	{	478	{
385	if (grp->sv2 && SvOK (grp->sv2))	479	if (grp->sv2 && SvOK (grp->sv2))
386	{	480	{
387	dSP;	481	dSP;
388		482
…		…
396	FREETMPS;	490	FREETMPS;
397	LEAVE;	491	LEAVE;
398	}	492	}
399	}	493	}
400		494
		495	static void
401	static void req_submit (eio_req *req)	496	req_submit (eio_req *req)
402	{	497	{
403	eio_submit (req);	498	eio_submit (req);
404		499
405	if (expect_false (on_next_submit))	500	if (expect_false (on_next_submit))
406	{	501	{
…		…
413	PUTBACK;	508	PUTBACK;
414	call_sv (cb, G_DISCARD | G_EVAL);	509	call_sv (cb, G_DISCARD | G_EVAL);
415	}	510	}
416	}	511	}
417		512
		513	static int
418	static int req_invoke (eio_req *req)	514	req_invoke (eio_req *req)
419	{	515	{
420	if (req->flags & FLAG_SV2_RO_OFF)	516	if (req->flags & FLAG_SV2_RO_OFF)
421	SvREADONLY_off (req->sv2);	517	SvREADONLY_off (req->sv2);
422		518
423	if (!EIO_CANCELLED (req) && req->callback)	519	if (!EIO_CANCELLED (req) && req->callback)
…		…
444	SvREADONLY_on (sv_result);	540	SvREADONLY_on (sv_result);
445	}	541	}
446		542
447	switch (req->type)	543	switch (req->type)
448	{	544	{
		545	case EIO_WD_OPEN:
		546	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		547	break;
		548
449	case EIO_READDIR:	549	case EIO_READDIR:
450	{	550	{
451	SV *rv = &PL_sv_undef;	551	SV *rv = &PL_sv_undef;
452		552
453	if (req->result >= 0)	553	if (req->result >= 0)
…		…
506	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	606	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
507	}	607	}
508	break;	608	break;
509		609
510	case EIO_OPEN:	610	case EIO_OPEN:
511	{	611	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
512	/* convert fd to fh */
513	SV *fh = &PL_sv_undef;
514
515	if (req->result >= 0)
516	{
517	GV *gv = (GV *)sv_newmortal ();
518	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
519	char sym [64];
520	int symlen;
521
522	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
523	gv_init (gv, aio_stash, sym, symlen, 0);
524
525	symlen = snprintf (
526	sym,
527	sizeof (sym),
528	"%s&=%d",
529	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
530	(int)req->result
531	);
532
533	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
534	fh = (SV *)gv;
535	}
536
537	PUSHs (fh);
538	}
539	break;	612	break;
540		613
541	case EIO_STATVFS:	614	case EIO_STATVFS:
542	case EIO_FSTATVFS:	615	case EIO_FSTATVFS:
543	{	616	{
544	SV *rv = &PL_sv_undef;	617	SV *rv = &PL_sv_undef;
545		618
		619	#ifndef _WIN32
546	if (req->result >= 0)	620	if (req->result >= 0)
547	{	621	{
548	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	622	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
549	HV *hv = newHV ();	623	HV *hv = newHV ();
		624	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		625	* chooses to make it a struct.
		626	*/
		627	unsigned long fsid = 0;
		628	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
550		629
551	rv = sv_2mortal (newRV_noinc ((SV *)hv));	630	rv = sv_2mortal (newRV_noinc ((SV *)hv));
552		631
553	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	632	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
554	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	633	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
556	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	635	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
557	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	636	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
558	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	637	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
559	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	638	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
560	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	639	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
561	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	640	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
562	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	641	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
563	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	642	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
564	}	643	}
		644	#endif
565		645
566	PUSHs (rv);	646	PUSHs (rv);
567	}	647	}
568		648
569	break;	649	break;
…		…
585	case EIO_NOP:	665	case EIO_NOP:
586	case EIO_BUSY:	666	case EIO_BUSY:
587	break;	667	break;
588		668
589	case EIO_READLINK:	669	case EIO_READLINK:
		670	case EIO_REALPATH:
590	if (req->result > 0)	671	if (req->result > 0)
591	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	672	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
592	break;	673	break;
593		674
594	case EIO_STAT:	675	case EIO_STAT:
595	case EIO_LSTAT:	676	case EIO_LSTAT:
596	case EIO_FSTAT:	677	case EIO_FSTAT:
597	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	678	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		679
598	PL_laststatval = req->result;	680	if (!(PL_laststatval = req->result))
		681	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
599	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	682	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		683
600	PUSHs (sv_result);	684	PUSHs (sv_result);
		685	break;
		686
		687	case EIO_SEEK:
		688	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
601	break;	689	break;
602		690
603	case EIO_READ:	691	case EIO_READ:
604	{	692	{
605	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	693	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
608	SvSETMAGIC (req->sv2);	696	SvSETMAGIC (req->sv2);
609	PUSHs (sv_result);	697	PUSHs (sv_result);
610	}	698	}
611	break;	699	break;
612		700
		701	case EIO_SLURP:
		702	{
		703	if (req->result >= 0)
		704	{
		705	/* if length was originally not known, we steal the malloc'ed memory */
		706	if (req->flags & EIO_FLAG_PTR2_FREE)
		707	{
		708	req->flags &= ~EIO_FLAG_PTR2_FREE;
		709	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		710	}
		711	else
		712	{
		713	SvCUR_set (req->sv2, req->result);
		714	*SvEND (req->sv2) = 0;
		715	SvPOK_only (req->sv2);
		716	}
		717
		718	SvSETMAGIC (req->sv2);
		719	}
		720
		721	PUSHs (sv_result);
		722	}
		723	break;
		724
		725	case EIO_CUSTOM:
		726	if (req->feed == fiemap)
		727	{
		728	#if HAVE_FIEMAP
		729	if (!req->result)
		730	{
		731	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		732
		733	if (fiemap->fm_extent_count)
		734	{
		735	AV *av = newAV ();
		736	int i;
		737
		738	while (fiemap->fm_mapped_extents)
		739	{
		740	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		741	AV *ext_av = newAV ();
		742
		743	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		744	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		745	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		746	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		747
		748	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		749	}
		750
		751	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		752	}
		753	else
		754	{
		755	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		756	PUSHs (sv_result);
		757	}
		758	}
		759	#endif
		760	}
		761	else
		762	PUSHs (sv_result);
		763	break;
		764
613	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	765	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
614	if (req->result > 0)	766	if (req->result > 0)
615	SvIV_set (sv_result, 0);	767	SvIV_set (sv_result, 0);
616	/* FALLTHROUGH */	768	/* FALLTHROUGH */
617		769
…		…
638	}	790	}
639		791
640	return !!SvTRUE (ERRSV);	792	return !!SvTRUE (ERRSV);
641	}	793	}
642		794
		795	static void
643	static void req_destroy (aio_req req)	796	req_destroy (aio_req req)
644	{	797	{
645	if (req->self)	798	if (req->self)
646	{	799	{
647	sv_unmagic (req->self, PERL_MAGIC_ext);	800	sv_unmagic (req->self, PERL_MAGIC_ext);
648	SvREFCNT_dec (req->self);	801	SvREFCNT_dec (req->self);
649	}	802	}
650		803
651	SvREFCNT_dec (req->sv1);	804	SvREFCNT_dec (req->sv1);
652	SvREFCNT_dec (req->sv2);	805	SvREFCNT_dec (req->sv2);
		806	SvREFCNT_dec (req->sv3);
		807	SvREFCNT_dec (req->sv4);
653	SvREFCNT_dec (req->callback);	808	SvREFCNT_dec (req->callback);
654		809
655	Safefree (req);	810	free (req);
656	}	811	}
657		812
		813	static void
658	static void req_cancel_subs (aio_req grp)	814	req_cancel_subs (aio_req grp)
659	{	815	{
660	aio_req sub;
661
662	if (grp->type != EIO_GROUP)	816	if (grp->type != EIO_GROUP)
663	return;	817	return;
664		818
665	SvREFCNT_dec (grp->sv2);	819	SvREFCNT_dec (grp->sv2);
666	grp->sv2 = 0;	820	grp->sv2 = 0;
667		821
668	eio_grp_cancel (grp);	822	eio_grp_cancel (grp);
669	}	823	}
670		824
671	static void	825	static void ecb_cold
672	create_respipe (void)	826	create_respipe (void)
673	{	827	{
674	if (s_epipe_renew (&respipe))	828	if (s_epipe_renew (&respipe))
675	croak ("IO::AIO: unable to initialize result pipe");	829	croak ("IO::AIO: unable to initialize result pipe");
676	}	830	}
677		831
678	static void poll_wait (void)	832	static void
		833	poll_wait (void)
679	{	834	{
680	while (eio_nreqs ())	835	while (eio_nreqs ())
681	{	836	{
682	int size;	837	int size;
683		838
684	X_LOCK (reslock);	839	X_LOCK (EIO_POOL->reslock);
685	size = res_queue.size;	840	size = EIO_POOL->res_queue.size;
686	X_UNLOCK (reslock);	841	X_UNLOCK (EIO_POOL->reslock);
687		842
688	if (size)	843	if (size)
689	return;	844	return;
690		845
691	etp_maybe_start_thread ();	846	etp_maybe_start_thread (EIO_POOL);
692		847
693	s_epipe_wait (&respipe);	848	s_epipe_wait (&respipe);
694	}	849	}
695	}	850	}
696		851
697	static int poll_cb (void)	852	static int
		853	poll_cb (void)
698	{	854	{
699	for (;;)	855	for (;;)
700	{	856	{
701	int res = eio_poll ();	857	int res = eio_poll ();
702		858
…		…
708		864
709	poll_wait ();	865	poll_wait ();
710	}	866	}
711	}	867	}
712		868
713	static void atfork_child (void)	869	static void ecb_cold
		870	reinit (void)
714	{	871	{
715	create_respipe ();	872	create_respipe ();
716	}
717		873
718	/*****************************************************************************/	874	if (eio_init (want_poll, done_poll) < 0)
719		875	croak ("IO::AIO: unable to initialise eio library");
720	#if !_POSIX_MAPPED_FILES
721	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
722	# define munmap(addr,length) (errno = ENOSYS, -1)
723	#endif
724
725	#if !_POSIX_MEMORY_PROTECTION
726	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
727	# define PROT_NONE 0
728	# define PROT_WRITE 0
729	# define MAP_PRIVATE 0
730	# define MAP_SHARED 0
731	# define MAP_FIXED 0
732	#endif
733
734	#define MMAP_MAGIC PERL_MAGIC_ext
735
736	static int
737	mmap_free (pTHX_ SV *sv, MAGIC *mg)
738	{
739	int old_errno = errno;
740	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
741	errno = old_errno;
742
743	mg->mg_obj = 0; /* just in case */
744
745	SvREADONLY_off (sv);
746
747	if (SvPVX (sv) != mg->mg_ptr)
748	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
749
750	SvCUR_set (sv, 0);
751	SvPVX (sv) = 0;
752	SvOK_off (sv);
753
754	return 0;
755	}	876	}
756
757	static MGVTBL mmap_vtbl = {
758	0, 0, 0, 0, mmap_free
759	};
760		877
761	/*****************************************************************************/	878	/*****************************************************************************/
762		879
763	static SV *	880	static SV *
764	get_cb (SV *cb_sv)	881	get_cb (SV *cb_sv)
765	{	882	{
766	SvGETMAGIC (cb_sv);	883	SvGETMAGIC (cb_sv);
767	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	884	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
768	}	885	}
769		886
		887	static aio_req ecb_noinline
		888	dreq (SV *callback)
		889	{
		890	SV *cb_cv;
		891	aio_req req;
		892	int req_pri = next_pri;
		893	next_pri = EIO_PRI_DEFAULT;
		894
		895	cb_cv = get_cb (callback);
		896
		897	req = calloc (sizeof (*req), 1);
		898	if (!req)
		899	croak ("out of memory during eio_req allocation");
		900
		901	req->callback = SvREFCNT_inc (cb_cv);
		902	req->pri = req_pri;
		903
		904	return req;
		905	}
		906
770	#define dREQ \	907	#define dREQ \
771	SV *cb_cv; \	908	aio_req req = dreq (callback); \
772	aio_req req; \
773	int req_pri = next_pri; \
774	next_pri = EIO_PRI_DEFAULT; \
775	\
776	cb_cv = get_cb (callback); \
777	\
778	Newz (0, req, 1, eio_req); \
779	if (!req) \
780	croak ("out of memory during eio_req allocation"); \
781	\
782	req->callback = SvREFCNT_inc (cb_cv); \
783	req->pri = req_pri
784		909
785	#define REQ_SEND \	910	#define REQ_SEND \
786	PUTBACK; \	911	PUTBACK; \
787	req_submit (req); \	912	req_submit (req); \
788	SPAGAIN; \	913	SPAGAIN; \
789	\	914	\
790	if (GIMME_V != G_VOID) \	915	if (GIMME_V != G_VOID) \
791	XPUSHs (req_sv (req, aio_req_stash));	916	XPUSHs (req_sv (req, aio_req_stash));
792		917
		918	ecb_inline void
		919	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		920	{
		921	if (expect_false (SvROK (path)))
		922	{
		923	SV *rv = SvRV (path);
		924	SV *wdob;
		925
		926	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		927	{
		928	path = AvARRAY (rv)[1];
		929	wdob = AvARRAY (rv)[0];
		930
		931	if (SvOK (wdob))
		932	{
		933	*wd = SvAIO_WD (wdob);
		934	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		935	}
		936	else
		937	*wd = EIO_INVALID_WD;
		938	}
		939	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		940	{
		941	*wd = (aio_wd)(long)SvIVX (rv);
		942	*wdsv = SvREFCNT_inc_NN (rv);
		943	*ptr = ".";
		944	return; /* path set to "." */
		945	}
		946	else
		947	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		948	}
		949
		950	*pathsv = newSVsv (path);
		951	*ptr = SvPVbyte_nolen (*pathsv);
		952	}
		953
		954	static void ecb_noinline
		955	req_set_path1 (aio_req req, SV *path)
		956	{
		957	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		958	}
		959
		960	static void ecb_noinline
		961	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		962	{
		963	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		964
		965	switch (SvTYPE (rv))
		966	{
		967	case SVt_PVIO:
		968	case SVt_PVLV:
		969	case SVt_PVGV:
		970	req->type = type_fh;
		971	req->sv1 = newSVsv (fh_or_path);
		972	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		973	break;
		974
		975	default:
		976	req->type = type_path;
		977	req_set_path1 (req, fh_or_path);
		978	break;
		979	}
		980	}
		981
		982	/*****************************************************************************/
		983
		984	static void
		985	ts_set (struct timespec *ts, NV value)
		986	{
		987	ts->tv_sec = value;
		988	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		989	}
		990
		991	static NV
		992	ts_get (const struct timespec *ts)
		993	{
		994	return ts->tv_sec + ts->tv_nsec * 1e-9;
		995	}
		996
		997	/*****************************************************************************/
		998
		999	XS(boot_IO__AIO) ecb_cold;
		1000
793	MODULE = IO::AIO PACKAGE = IO::AIO	1001	MODULE = IO::AIO PACKAGE = IO::AIO
794		1002
795	PROTOTYPES: ENABLE	1003	PROTOTYPES: ENABLE
796		1004
797	BOOT:	1005	BOOT:
…		…
801	IV iv;	1009	IV iv;
802	} *civ, const_iv[] = {	1010	} *civ, const_iv[] = {
803	# define const_niv(name, value) { # name, (IV) value },	1011	# define const_niv(name, value) { # name, (IV) value },
804	# define const_iv(name) { # name, (IV) name },	1012	# define const_iv(name) { # name, (IV) name },
805	# define const_eio(name) { # name, (IV) EIO_ ## name },	1013	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1014
		1015	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1016	/* the first block can be undef if missing */
		1017	const_iv (ENOSYS)
806	const_iv (EXDEV)	1018	const_iv (EXDEV)
807	const_iv (ENOSYS)	1019	const_iv (EBADR)
		1020
		1021	/* for lseek */
		1022	const_iv (SEEK_DATA)
		1023	const_iv (SEEK_HOLE)
		1024
		1025	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1026	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1027	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1028	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1029	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1030	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1031
		1032	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1033	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1034	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1035	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1036	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1037
		1038	/* the second block will be 0 when missing */
808	const_iv (O_RDONLY)	1039	const_iv (O_RDONLY)
809	const_iv (O_WRONLY)	1040	const_iv (O_WRONLY)
810	const_iv (O_RDWR)	1041	const_iv (O_RDWR)
811	const_iv (O_CREAT)	1042	const_iv (O_CREAT)
812	const_iv (O_TRUNC)	1043	const_iv (O_TRUNC)
…		…
825	const_iv (O_SEARCH)	1056	const_iv (O_SEARCH)
826	const_iv (O_DIRECTORY)	1057	const_iv (O_DIRECTORY)
827	const_iv (O_DSYNC)	1058	const_iv (O_DSYNC)
828	const_iv (O_RSYNC)	1059	const_iv (O_RSYNC)
829	const_iv (O_SYNC)	1060	const_iv (O_SYNC)
		1061	const_iv (O_PATH)
		1062	const_iv (O_TMPFILE)
830	const_iv (O_TTY_INIT)	1063	const_iv (O_TTY_INIT)
831		1064
832	const_iv (S_IFIFO)	1065	const_iv (S_IFIFO)
833	const_iv (S_IFCHR)	1066	const_iv (S_IFCHR)
834	const_iv (S_IFBLK)	1067	const_iv (S_IFBLK)
…		…
836	const_iv (S_IFREG)	1069	const_iv (S_IFREG)
837	const_iv (S_IFDIR)	1070	const_iv (S_IFDIR)
838	const_iv (S_IFWHT)	1071	const_iv (S_IFWHT)
839	const_iv (S_IFSOCK)	1072	const_iv (S_IFSOCK)
840	const_iv (S_IFMT)	1073	const_iv (S_IFMT)
841
842	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
843	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
844	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
845	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
846	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
847	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
848
849	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
850	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
851	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
852	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
853	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
854		1074
855	const_iv (ST_RDONLY)	1075	const_iv (ST_RDONLY)
856	const_iv (ST_NOSUID)	1076	const_iv (ST_NOSUID)
857	const_iv (ST_NODEV)	1077	const_iv (ST_NODEV)
858	const_iv (ST_NOEXEC)	1078	const_iv (ST_NOEXEC)
…		…
868	const_iv (PROT_NONE)	1088	const_iv (PROT_NONE)
869	const_iv (PROT_EXEC)	1089	const_iv (PROT_EXEC)
870	const_iv (PROT_READ)	1090	const_iv (PROT_READ)
871	const_iv (PROT_WRITE)	1091	const_iv (PROT_WRITE)
872		1092
873	/*const_iv (MAP_FIXED)*/
874	const_iv (MAP_PRIVATE)	1093	const_iv (MAP_PRIVATE)
875	const_iv (MAP_SHARED)	1094	const_iv (MAP_SHARED)
		1095	const_iv (MAP_FIXED)
876	const_iv (MAP_ANONYMOUS)	1096	const_iv (MAP_ANONYMOUS)
877		1097
878	/* linuxish */	1098	/* linuxish */
879	const_iv (MAP_HUGETLB)
880	const_iv (MAP_LOCKED)	1099	const_iv (MAP_LOCKED)
881	const_iv (MAP_NORESERVE)	1100	const_iv (MAP_NORESERVE)
882	const_iv (MAP_POPULATE)	1101	const_iv (MAP_POPULATE)
883	const_iv (MAP_NONBLOCK)	1102	const_iv (MAP_NONBLOCK)
		1103	const_iv (MAP_GROWSDOWN)
		1104	const_iv (MAP_32BIT)
		1105	const_iv (MAP_HUGETLB)
		1106	const_iv (MAP_STACK)
		1107
		1108	const_iv (F_DUPFD_CLOEXEC)
		1109
		1110	const_iv (F_OFD_GETLK)
		1111	const_iv (F_OFD_SETLK)
		1112	const_iv (F_OFD_GETLKW)
		1113
		1114	const_iv (FIFREEZE)
		1115	const_iv (FITHAW)
		1116	const_iv (FITRIM)
		1117	const_iv (FICLONE)
		1118	const_iv (FICLONERANGE)
		1119	const_iv (FIDEDUPERANGE)
		1120
		1121	const_iv (FS_IOC_GETFLAGS)
		1122	const_iv (FS_IOC_SETFLAGS)
		1123	const_iv (FS_IOC_GETVERSION)
		1124	const_iv (FS_IOC_SETVERSION)
		1125	const_iv (FS_IOC_FIEMAP)
		1126	const_iv (FS_IOC_FSGETXATTR)
		1127	const_iv (FS_IOC_FSSETXATTR)
		1128	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1129	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1130	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1131
		1132	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1133
		1134	const_iv (FS_SECRM_FL)
		1135	const_iv (FS_UNRM_FL)
		1136	const_iv (FS_COMPR_FL)
		1137	const_iv (FS_SYNC_FL)
		1138	const_iv (FS_IMMUTABLE_FL)
		1139	const_iv (FS_APPEND_FL)
		1140	const_iv (FS_NODUMP_FL)
		1141	const_iv (FS_NOATIME_FL)
		1142	const_iv (FS_DIRTY_FL)
		1143	const_iv (FS_COMPRBLK_FL)
		1144	const_iv (FS_NOCOMP_FL)
		1145	const_iv (FS_ENCRYPT_FL)
		1146	const_iv (FS_BTREE_FL)
		1147	const_iv (FS_INDEX_FL)
		1148	const_iv (FS_JOURNAL_DATA_FL)
		1149	const_iv (FS_NOTAIL_FL)
		1150	const_iv (FS_DIRSYNC_FL)
		1151	const_iv (FS_TOPDIR_FL)
		1152	const_iv (FS_FL_USER_MODIFIABLE)
		1153
		1154	const_iv (FS_XFLAG_REALTIME)
		1155	const_iv (FS_XFLAG_PREALLOC)
		1156	const_iv (FS_XFLAG_IMMUTABLE)
		1157	const_iv (FS_XFLAG_APPEND)
		1158	const_iv (FS_XFLAG_SYNC)
		1159	const_iv (FS_XFLAG_NOATIME)
		1160	const_iv (FS_XFLAG_NODUMP)
		1161	const_iv (FS_XFLAG_RTINHERIT)
		1162	const_iv (FS_XFLAG_PROJINHERIT)
		1163	const_iv (FS_XFLAG_NOSYMLINKS)
		1164	const_iv (FS_XFLAG_EXTSIZE)
		1165	const_iv (FS_XFLAG_EXTSZINHERIT)
		1166	const_iv (FS_XFLAG_NODEFRAG)
		1167	const_iv (FS_XFLAG_FILESTREAM)
		1168	const_iv (FS_XFLAG_DAX)
		1169	const_iv (FS_XFLAG_HASATTR)
		1170
		1171	const_iv (FIEMAP_FLAG_SYNC)
		1172	const_iv (FIEMAP_FLAG_XATTR)
		1173	const_iv (FIEMAP_FLAGS_COMPAT)
		1174	const_iv (FIEMAP_EXTENT_LAST)
		1175	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1176	const_iv (FIEMAP_EXTENT_DELALLOC)
		1177	const_iv (FIEMAP_EXTENT_ENCODED)
		1178	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1179	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1180	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1181	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1182	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1183	const_iv (FIEMAP_EXTENT_MERGED)
		1184	const_iv (FIEMAP_EXTENT_SHARED)
		1185
		1186	const_iv (SPLICE_F_MOVE)
		1187	const_iv (SPLICE_F_NONBLOCK)
		1188	const_iv (SPLICE_F_MORE)
		1189	const_iv (SPLICE_F_GIFT)
		1190
		1191	const_iv (EFD_CLOEXEC)
		1192	const_iv (EFD_NONBLOCK)
		1193	const_iv (EFD_SEMAPHORE)
		1194
		1195	const_iv (CLOCK_REALTIME)
		1196	const_iv (CLOCK_MONOTONIC)
		1197	const_iv (CLOCK_BOOTTIME)
		1198	const_iv (CLOCK_REALTIME_ALARM)
		1199	const_iv (CLOCK_BOOTTIME_ALARM)
		1200
		1201	const_iv (TFD_NONBLOCK)
		1202	const_iv (TFD_CLOEXEC)
		1203
		1204	const_iv (TFD_TIMER_ABSTIME)
		1205	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1206
		1207	/* these are libeio constants, and are independent of gendef0 */
		1208	const_eio (SEEK_SET)
		1209	const_eio (SEEK_CUR)
		1210	const_eio (SEEK_END)
884		1211
885	const_eio (MCL_FUTURE)	1212	const_eio (MCL_FUTURE)
886	const_eio (MCL_CURRENT)	1213	const_eio (MCL_CURRENT)
887		1214
888	const_eio (MS_ASYNC)	1215	const_eio (MS_ASYNC)
…		…
892	const_eio (MT_MODIFY)	1219	const_eio (MT_MODIFY)
893		1220
894	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1221	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
895	const_eio (SYNC_FILE_RANGE_WRITE)	1222	const_eio (SYNC_FILE_RANGE_WRITE)
896	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1223	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1224
		1225	const_eio (FALLOC_FL_KEEP_SIZE)
		1226	const_eio (FALLOC_FL_PUNCH_HOLE)
		1227	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1228	const_eio (FALLOC_FL_ZERO_RANGE)
		1229	const_eio (FALLOC_FL_INSERT_RANGE)
		1230	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1231
		1232	const_eio (RENAME_NOREPLACE)
		1233	const_eio (RENAME_EXCHANGE)
		1234	const_eio (RENAME_WHITEOUT)
897		1235
898	const_eio (READDIR_DENTS)	1236	const_eio (READDIR_DENTS)
899	const_eio (READDIR_DIRS_FIRST)	1237	const_eio (READDIR_DIRS_FIRST)
900	const_eio (READDIR_STAT_ORDER)	1238	const_eio (READDIR_STAT_ORDER)
901	const_eio (READDIR_FOUND_UNKNOWN)	1239	const_eio (READDIR_FOUND_UNKNOWN)
…		…
912	};	1250	};
913		1251
914	aio_stash = gv_stashpv ("IO::AIO" , 1);	1252	aio_stash = gv_stashpv ("IO::AIO" , 1);
915	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1253	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
916	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1254	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1255	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
917		1256
918	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1257	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
919	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1258	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
920		1259
921	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1260	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
922		1261
923	create_respipe ();	1262	reinit ();
924
925	if (eio_init (want_poll, done_poll) < 0)
926	croak ("IO::AIO: unable to initialise eio library");
927
928	/* atfork child called in fifo order, so before eio's handler */
929	X_THREAD_ATFORK (0, 0, atfork_child);
930	}	1263	}
		1264
		1265	void
		1266	reinit ()
		1267	PROTOTYPE:
931		1268
932	void	1269	void
933	max_poll_reqs (unsigned int nreqs)	1270	max_poll_reqs (unsigned int nreqs)
934	PROTOTYPE: $	1271	PROTOTYPE: $
935	CODE:	1272	CODE:
…		…
970	PROTOTYPE: $	1307	PROTOTYPE: $
971	CODE:	1308	CODE:
972	max_outstanding = maxreqs;	1309	max_outstanding = maxreqs;
973		1310
974	void	1311	void
975	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1312	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
976	PPCODE:	1313	PPCODE:
977	{	1314	{
978	dREQ;	1315	dREQ;
979		1316
		1317	req->type = EIO_WD_OPEN;
		1318	req_set_path1 (req, pathname);
		1319
		1320	REQ_SEND;
		1321	}
		1322
		1323	void
		1324	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1325	PPCODE:
		1326	{
		1327	dREQ;
		1328
980	req->type = EIO_OPEN;	1329	req->type = EIO_OPEN;
981	req->sv1 = newSVsv (pathname);	1330	req_set_path1 (req, pathname);
982	req->ptr1 = SvPVbyte_nolen (req->sv1);
983	req->int1 = flags;	1331	req->int1 = flags;
984	req->int2 = mode;	1332	req->int2 = mode;
985		1333
986	REQ_SEND;	1334	REQ_SEND;
987	}	1335	}
988		1336
989	void	1337	void
990	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1338	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
991	ALIAS:	1339	ALIAS:
992	aio_fsync = EIO_FSYNC	1340	aio_fsync = EIO_FSYNC
993	aio_fdatasync = EIO_FDATASYNC	1341	aio_fdatasync = EIO_FDATASYNC
		1342	aio_syncfs = EIO_SYNCFS
994	PPCODE:	1343	PPCODE:
995	{	1344	{
996	int fd = s_fileno_croak (fh, 0);	1345	int fd = s_fileno_croak (fh, 0);
997	dREQ;	1346	dREQ;
998		1347
999	req->type = ix;	1348	req->type = ix;
1000	req->sv1 = newSVsv (fh);	1349	req->sv1 = newSVsv (fh);
1001	req->int1 = fd;	1350	req->int1 = fd;
1002		1351
1003	REQ_SEND (req);	1352	REQ_SEND;
1004	}	1353	}
1005		1354
1006	void	1355	void
1007	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1356	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1008	PPCODE:	1357	PPCODE:
1009	{	1358	{
1010	int fd = s_fileno_croak (fh, 0);	1359	int fd = s_fileno_croak (fh, 0);
1011	dREQ;	1360	dREQ;
1012		1361
1013	req->type = EIO_SYNC_FILE_RANGE;	1362	req->type = EIO_SYNC_FILE_RANGE;
1014	req->sv1 = newSVsv (fh);	1363	req->sv1 = newSVsv (fh);
1015	req->int1 = fd;	1364	req->int1 = fd;
1016	req->offs = offset;	1365	req->offs = offset;
1017	req->size = nbytes;	1366	req->size = nbytes;
1018	req->int2 = flags;	1367	req->int2 = flags;
1019		1368
1020	REQ_SEND (req);	1369	REQ_SEND;
1021	}	1370	}
1022		1371
1023	void	1372	void
1024	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1373	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1025	PPCODE:	1374	PPCODE:
1026	{	1375	{
1027	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
1028	int fd = s_fileno_croak (fh, 0);	1376	int fd = s_fileno_croak (fh, 0);
1029	dREQ;	1377	dREQ;
1030		1378
1031	if (close_pipe < 0)	1379	req->type = EIO_FALLOCATE;
		1380	req->sv1 = newSVsv (fh);
		1381	req->int1 = fd;
		1382	req->int2 = mode;
		1383	req->offs = offset;
		1384	req->size = len;
		1385
		1386	REQ_SEND;
		1387	}
		1388
		1389	void
		1390	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1391	PPCODE:
		1392	{
		1393	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1394	int fd = s_fileno_croak (fh, 0);
		1395	dREQ;
		1396
		1397	if (expect_false (close_fd < 0))
1032	{	1398	{
1033	int pipefd [2];	1399	int pipefd [2];
1034		1400
		1401	if (
		1402	#ifdef _WIN32
		1403	_pipe (pipefd, 1, _O_BINARY) < 0
		1404	#else
1035	if (pipe (pipefd) < 0	1405	pipe (pipefd) < 0
1036	|| close (pipefd [1]) < 0
1037	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1406	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1407	#endif
		1408	|| close (pipefd [1]) < 0
		1409	)
1038	abort (); /*D*/	1410	abort (); /*D*/
1039		1411
1040	close_pipe = pipefd [0];	1412	close_fd = pipefd [0];
1041	}	1413	}
1042		1414
1043	req->type = EIO_DUP2;	1415	req->type = EIO_DUP2;
1044	req->int1 = close_pipe;	1416	req->int1 = close_fd;
1045	req->sv2 = newSVsv (fh);	1417	req->sv2 = newSVsv (fh);
1046	req->int2 = fd;	1418	req->int2 = fd;
1047		1419
1048	REQ_SEND (req);	1420	REQ_SEND;
1049	}	1421	}
1050		1422
1051	void	1423	void
		1424	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1425	PPCODE:
		1426	{
		1427	int fd = s_fileno_croak (fh, 0);
		1428	dREQ;
		1429
		1430	req->type = EIO_SEEK;
		1431	req->sv1 = newSVsv (fh);
		1432	req->int1 = fd;
		1433	req->offs = SvVAL64 (offset);
		1434	req->int2 = whence;
		1435
		1436	REQ_SEND;
		1437	}
		1438
		1439	void
1052	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1440	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1053	ALIAS:	1441	ALIAS:
1054	aio_read = EIO_READ	1442	aio_read = EIO_READ
1055	aio_write = EIO_WRITE	1443	aio_write = EIO_WRITE
1056	PPCODE:	1444	PPCODE:
1057	{	1445	{
…		…
1073	len = svlen - dataoffset;	1461	len = svlen - dataoffset;
1074	}	1462	}
1075	else	1463	else
1076	{	1464	{
1077	/* read: check type and grow scalar as necessary */	1465	/* read: check type and grow scalar as necessary */
1078	SvUPGRADE (data, SVt_PV);	1466	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1079	svptr = SvGROW (data, len + dataoffset + 1);	1467	svptr = sv_grow (data, len + dataoffset + 1);
		1468	else if (SvCUR (data) < len + dataoffset)
		1469	croak ("length + dataoffset outside of scalar, and cannot grow");
1080	}	1470	}
1081		1471
1082	{	1472	{
1083	dREQ;	1473	dREQ;
1084		1474
…		…
1100	REQ_SEND;	1490	REQ_SEND;
1101	}	1491	}
1102	}	1492	}
1103		1493
1104	void	1494	void
1105	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1495	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1496	ALIAS:
		1497	aio_ioctl = EIO_IOCTL
		1498	aio_fcntl = EIO_FCNTL
1106	PPCODE:	1499	PPCODE:
1107	{	1500	{
1108	SV *data;	1501	int fd = s_fileno_croak (fh, 0);
		1502	char *svptr;
		1503
		1504	if (SvPOK (arg) || !SvNIOK (arg))
		1505	{
		1506	STRLEN svlen;
		1507	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1508	#ifdef IOCPARM_LEN
		1509	STRLEN need = IOCPARM_LEN (request);
		1510	#else
		1511	STRLEN need = 256;
		1512	#endif
		1513
		1514	if (svlen < need)
		1515	svptr = SvGROW (arg, need);
		1516	}
		1517	else
		1518	svptr = (char *)SvIV (arg);
		1519
		1520	{
		1521	dREQ;
		1522
		1523	req->type = ix;
		1524	req->sv1 = newSVsv (fh);
		1525	req->int1 = fd;
		1526	req->int2 = (long)request;
		1527	req->sv2 = SvREFCNT_inc (arg);
		1528	req->ptr2 = svptr;
		1529
		1530	REQ_SEND;
		1531	}
		1532	}
		1533
		1534	void
		1535	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1536	ALIAS:
		1537	aio_readlink = EIO_READLINK
		1538	aio_realpath = EIO_REALPATH
		1539	PPCODE:
		1540	{
1109	dREQ;	1541	dREQ;
1110		1542
1111	req->type = EIO_READLINK;	1543	req->type = ix;
1112	req->sv1 = newSVsv (path);	1544	req_set_path1 (req, pathname);
1113	req->ptr1 = SvPVbyte_nolen (req->sv1);
1114		1545
1115	REQ_SEND;	1546	REQ_SEND;
1116	}	1547	}
1117		1548
1118	void	1549	void
1119	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1550	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1120	PPCODE:	1551	PPCODE:
1121	{	1552	{
1122	int ifd = s_fileno_croak (in_fh , 0);	1553	int ifd = s_fileno_croak (in_fh , 0);
1123	int ofd = s_fileno_croak (out_fh, 1);	1554	int ofd = s_fileno_croak (out_fh, 1);
1124	dREQ;	1555	dREQ;
1125		1556
1126	req->type = EIO_SENDFILE;	1557	req->type = EIO_SENDFILE;
1127	req->sv1 = newSVsv (out_fh);	1558	req->sv1 = newSVsv (out_fh);
1128	req->int1 = ofd;	1559	req->int1 = ofd;
…		…
1133		1564
1134	REQ_SEND;	1565	REQ_SEND;
1135	}	1566	}
1136		1567
1137	void	1568	void
1138	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1569	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1139	PPCODE:	1570	PPCODE:
1140	{	1571	{
1141	int fd = s_fileno_croak (fh, 0);	1572	int fd = s_fileno_croak (fh, 0);
1142	dREQ;	1573	dREQ;
1143		1574
1144	req->type = EIO_READAHEAD;	1575	req->type = EIO_READAHEAD;
1145	req->sv1 = newSVsv (fh);	1576	req->sv1 = newSVsv (fh);
1146	req->int1 = fd;	1577	req->int1 = fd;
…		…
1149		1580
1150	REQ_SEND;	1581	REQ_SEND;
1151	}	1582	}
1152		1583
1153	void	1584	void
1154	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1585	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1155	ALIAS:	1586	ALIAS:
1156	aio_stat = EIO_STAT	1587	aio_stat = EIO_STAT
1157	aio_lstat = EIO_LSTAT	1588	aio_lstat = EIO_LSTAT
1158	aio_statvfs = EIO_STATVFS	1589	aio_statvfs = EIO_STATVFS
1159	PPCODE:	1590	PPCODE:
1160	{	1591	{
1161	dREQ;	1592	dREQ;
1162		1593
1163	req->sv1 = newSVsv (fh_or_path);	1594	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1164
1165	if (SvPOK (req->sv1))
1166	{
1167	req->type = ix;
1168	req->ptr1 = SvPVbyte_nolen (req->sv1);
1169	}
1170	else
1171	{
1172	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1173	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1174	}
1175		1595
1176	REQ_SEND;	1596	REQ_SEND;
1177	}	1597	}
1178		1598
1179	UV	1599	UV
1180	major (UV dev)	1600	major (UV dev)
1181	ALIAS:	1601	ALIAS:
1182	minor = 1	1602	minor = 1
1183	CODE:	1603	CODE:
1184	RETVAL = ix ? major (dev) : minor (dev);	1604	RETVAL = ix ? minor (dev) : major (dev);
1185	OUTPUT:	1605	OUTPUT:
1186	RETVAL	1606	RETVAL
1187		1607
1188	UV	1608	UV
1189	makedev (UV maj, UV min)	1609	makedev (UV maj, UV min)
…		…
1191	RETVAL = makedev (maj, min);	1611	RETVAL = makedev (maj, min);
1192	OUTPUT:	1612	OUTPUT:
1193	RETVAL	1613	RETVAL
1194		1614
1195	void	1615	void
1196	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1616	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1197	PPCODE:	1617	PPCODE:
1198	{	1618	{
1199	dREQ;	1619	dREQ;
1200		1620
1201	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1621	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1202	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1622	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1203	req->sv1 = newSVsv (fh_or_path);	1623	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1204
1205	if (SvPOK (req->sv1))
1206	{
1207	req->type = EIO_UTIME;
1208	req->ptr1 = SvPVbyte_nolen (req->sv1);
1209	}
1210	else
1211	{
1212	req->type = EIO_FUTIME;
1213	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1214	}
1215		1624
1216	REQ_SEND;	1625	REQ_SEND;
1217	}	1626	}
1218		1627
1219	void	1628	void
1220	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1629	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1221	PPCODE:	1630	PPCODE:
1222	{	1631	{
1223	dREQ;	1632	dREQ;
1224		1633
1225	req->sv1 = newSVsv (fh_or_path);
1226	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1634	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1227		1635	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1228	if (SvPOK (req->sv1))
1229	{
1230	req->type = EIO_TRUNCATE;
1231	req->ptr1 = SvPVbyte_nolen (req->sv1);
1232	}
1233	else
1234	{
1235	req->type = EIO_FTRUNCATE;
1236	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1237	}
1238		1636
1239	REQ_SEND;	1637	REQ_SEND;
1240	}	1638	}
1241		1639
1242	void	1640	void
1243	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1641	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1244	ALIAS:
1245	aio_chmod = EIO_CHMOD
1246	aio_mkdir = EIO_MKDIR
1247	PPCODE:	1642	PPCODE:
1248	{	1643	{
1249	dREQ;	1644	dREQ;
1250		1645
1251	req->int2 = mode;	1646	req->int2 = mode;
1252	req->sv1 = newSVsv (fh_or_path);	1647	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1253
1254	if (SvPOK (req->sv1))
1255	{
1256	req->type = ix;
1257	req->ptr1 = SvPVbyte_nolen (req->sv1);
1258	}
1259	else
1260	{
1261	req->type = EIO_FCHMOD;
1262	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1263	}
1264		1648
1265	REQ_SEND;	1649	REQ_SEND;
1266	}	1650	}
1267		1651
1268	void	1652	void
1269	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1653	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1270	PPCODE:	1654	PPCODE:
1271	{	1655	{
1272	dREQ;	1656	dREQ;
1273		1657
1274	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1658	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1275	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1659	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1276	req->sv1 = newSVsv (fh_or_path);	1660	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1277
1278	if (SvPOK (req->sv1))
1279	{
1280	req->type = EIO_CHOWN;
1281	req->ptr1 = SvPVbyte_nolen (req->sv1);
1282	}
1283	else
1284	{
1285	req->type = EIO_FCHOWN;
1286	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1287	}
1288		1661
1289	REQ_SEND;	1662	REQ_SEND;
1290	}	1663	}
1291		1664
1292	void	1665	void
1293	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1666	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1294	PPCODE:	1667	PPCODE:
1295	{	1668	{
1296	dREQ;	1669	dREQ;
1297		1670
1298	req->type = EIO_READDIR;	1671	req->type = EIO_READDIR;
1299	req->sv1 = newSVsv (pathname);
1300	req->ptr1 = SvPVbyte_nolen (req->sv1);
1301	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1672	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1302		1673
1303	if (flags & EIO_READDIR_DENTS)	1674	if (flags & EIO_READDIR_DENTS)
1304	req->int1 |= EIO_READDIR_CUSTOM2;	1675	req->int1 |= EIO_READDIR_CUSTOM2;
1305		1676
		1677	req_set_path1 (req, pathname);
		1678
1306	REQ_SEND;	1679	REQ_SEND;
1307	}	1680	}
1308		1681
1309	void	1682	void
		1683	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1684	PPCODE:
		1685	{
		1686	dREQ;
		1687
		1688	req->type = EIO_MKDIR;
		1689	req->int2 = mode;
		1690	req_set_path1 (req, pathname);
		1691
		1692	REQ_SEND;
		1693	}
		1694
		1695	void
1310	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1696	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1311	ALIAS:	1697	ALIAS:
1312	aio_unlink = EIO_UNLINK	1698	aio_unlink = EIO_UNLINK
1313	aio_rmdir = EIO_RMDIR	1699	aio_rmdir = EIO_RMDIR
1314	aio_readdir = EIO_READDIR	1700	aio_readdir = EIO_READDIR
1315	PPCODE:	1701	PPCODE:
1316	{	1702	{
1317	dREQ;	1703	dREQ;
1318		1704
1319	req->type = ix;	1705	req->type = ix;
1320	req->sv1 = newSVsv (pathname);	1706	req_set_path1 (req, pathname);
1321	req->ptr1 = SvPVbyte_nolen (req->sv1);
1322		1707
1323	REQ_SEND;	1708	REQ_SEND;
1324	}	1709	}
1325		1710
1326	void	1711	void
1327	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1712	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1328	ALIAS:	1713	ALIAS:
1329	aio_link = EIO_LINK	1714	aio_link = EIO_LINK
1330	aio_symlink = EIO_SYMLINK	1715	aio_symlink = EIO_SYMLINK
1331	aio_rename = EIO_RENAME	1716	aio_rename = EIO_RENAME
1332	PPCODE:	1717	PPCODE:
1333	{	1718	{
		1719	eio_wd wd2 = 0;
1334	dREQ;	1720	dREQ;
1335		1721
1336	req->type = ix;	1722	req->type = ix;
1337	req->sv1 = newSVsv (oldpath);	1723	req_set_path1 (req, oldpath);
1338	req->ptr1 = SvPVbyte_nolen (req->sv1);	1724	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1339	req->sv2 = newSVsv (newpath);	1725	req->int3 = (long)wd2;
1340	req->ptr2 = SvPVbyte_nolen (req->sv2);
1341		1726
1342	REQ_SEND;	1727	REQ_SEND;
1343	}	1728	}
1344		1729
1345	void	1730	void
		1731	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1732	PPCODE:
		1733	{
		1734	eio_wd wd2 = 0;
		1735	dREQ;
		1736
		1737	req->type = EIO_RENAME;
		1738	req_set_path1 (req, oldpath);
		1739	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1740	req->int2 = flags;
		1741	req->int3 = (long)wd2;
		1742
		1743	REQ_SEND;
		1744	}
		1745
		1746	void
1346	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1747	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1347	PPCODE:	1748	PPCODE:
1348	{	1749	{
1349	dREQ;	1750	dREQ;
1350		1751
1351	req->type = EIO_MKNOD;	1752	req->type = EIO_MKNOD;
1352	req->sv1 = newSVsv (pathname);
1353	req->ptr1 = SvPVbyte_nolen (req->sv1);
1354	req->int2 = (mode_t)mode;	1753	req->int2 = (mode_t)mode;
1355	req->offs = dev;	1754	req->offs = dev;
		1755	req_set_path1 (req, pathname);
1356		1756
1357	REQ_SEND;	1757	REQ_SEND;
1358	}	1758	}
1359		1759
1360	void	1760	void
1361	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1761	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1362	ALIAS:	1762	ALIAS:
1363	aio_mtouch = EIO_MTOUCH	1763	aio_mtouch = EIO_MTOUCH
1364	aio_msync = EIO_MSYNC	1764	aio_msync = EIO_MSYNC
1365	PPCODE:	1765	PPCODE:
1366	{	1766	{
1367	STRLEN svlen;	1767	STRLEN svlen;
1368	char *svptr = SvPVbyte (data, svlen);	1768	char *svptr = SvPVbyte (data, svlen);
1369	UV len = SvUV (length);	1769	UV len = SvUV (length);
		1770
		1771	if (flags < 0)
		1772	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1370		1773
1371	if (offset < 0)	1774	if (offset < 0)
1372	offset += svlen;	1775	offset += svlen;
1373		1776
1374	if (offset < 0 || offset > svlen)	1777	if (offset < 0 || offset > svlen)
…		…
1389	REQ_SEND;	1792	REQ_SEND;
1390	}	1793	}
1391	}	1794	}
1392		1795
1393	void	1796	void
1394	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1797	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1395	PPCODE:	1798	PPCODE:
1396	{	1799	{
1397	STRLEN svlen;	1800	STRLEN svlen;
1398	char *svptr = SvPVbyte (data, svlen);	1801	char *svptr = SvPVbyte (data, svlen);
1399	UV len = SvUV (length);	1802	UV len = SvUV (length);
…		…
1418	REQ_SEND;	1821	REQ_SEND;
1419	}	1822	}
1420	}	1823	}
1421		1824
1422	void	1825	void
1423	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1826	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1424	PPCODE:	1827	PPCODE:
1425	{	1828	{
1426	dREQ;	1829	dREQ;
1427		1830
1428	req->type = EIO_MLOCKALL;	1831	req->type = EIO_MLOCKALL;
…		…
1430		1833
1431	REQ_SEND;	1834	REQ_SEND;
1432	}	1835	}
1433		1836
1434	void	1837	void
		1838	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1839	PPCODE:
		1840	{
		1841	int fd = s_fileno_croak (fh, 0);
		1842	dREQ;
		1843
		1844	req->type = EIO_CUSTOM;
		1845	req->sv1 = newSVsv (fh);
		1846	req->int1 = fd;
		1847
		1848	req->feed = fiemap;
		1849	#if HAVE_FIEMAP
		1850	/* keep our fingers crossed that the next two types are 64 bit */
		1851	req->offs = start;
		1852	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1853	req->int2 = flags;
		1854	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1855	#endif
		1856
		1857	REQ_SEND;
		1858	}
		1859
		1860	void
		1861	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1862	PPCODE:
		1863	{
		1864	char *svptr = 0;
		1865
		1866	sv_clear_foreign (data);
		1867
		1868	if (length) /* known length, directly read into scalar */
		1869	{
		1870	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1871	svptr = sv_grow (data, length + 1);
		1872	else if (SvCUR (data) < length)
		1873	croak ("length outside of scalar, and cannot grow");
		1874	else
		1875	svptr = SvPVbyte_nolen (data);
		1876	}
		1877
		1878	{
		1879	dREQ;
		1880
		1881	req->type = EIO_SLURP;
		1882	req_set_path1 (req, pathname);
		1883	req->offs = offset;
		1884	req->size = length;
		1885	req->sv2 = SvREFCNT_inc (data);
		1886	req->ptr2 = svptr;
		1887
		1888	if (!SvREADONLY (data))
		1889	{
		1890	SvREADONLY_on (data);
		1891	req->flags |= FLAG_SV2_RO_OFF;
		1892	}
		1893
		1894	REQ_SEND;
		1895	}
		1896	}
		1897
		1898	void
1435	aio_busy (double delay, SV *callback=&PL_sv_undef)	1899	aio_busy (double delay, SV *callback = &PL_sv_undef)
1436	PPCODE:	1900	PPCODE:
1437	{	1901	{
1438	dREQ;	1902	dREQ;
1439		1903
1440	req->type = EIO_BUSY;	1904	req->type = EIO_BUSY;
…		…
1442		1906
1443	REQ_SEND;	1907	REQ_SEND;
1444	}	1908	}
1445		1909
1446	void	1910	void
1447	aio_group (SV *callback=&PL_sv_undef)	1911	aio_group (SV *callback = &PL_sv_undef)
1448	PPCODE:	1912	PPCODE:
1449	{	1913	{
1450	dREQ;	1914	dREQ;
1451		1915
1452	req->type = EIO_GROUP;	1916	req->type = EIO_GROUP;
1453		1917
		1918	PUTBACK;
1454	req_submit (req);	1919	req_submit (req);
		1920	SPAGAIN;
		1921
1455	XPUSHs (req_sv (req, aio_grp_stash));	1922	XPUSHs (req_sv (req, aio_grp_stash));
1456	}	1923	}
1457		1924
1458	void	1925	void
1459	aio_nop (SV *callback=&PL_sv_undef)	1926	aio_nop (SV *callback = &PL_sv_undef)
1460	ALIAS:	1927	ALIAS:
1461	aio_nop = EIO_NOP	1928	aio_nop = EIO_NOP
1462	aio_sync = EIO_SYNC	1929	aio_sync = EIO_SYNC
1463	PPCODE:	1930	PPCODE:
1464	{	1931	{
…		…
1468		1935
1469	REQ_SEND;	1936	REQ_SEND;
1470	}	1937	}
1471		1938
1472	int	1939	int
1473	aioreq_pri (int pri = 0)	1940	aioreq_pri (int pri = NO_INIT)
1474	CODE:	1941	CODE:
1475	RETVAL = next_pri;	1942	RETVAL = next_pri;
1476	if (items > 0)	1943	if (items > 0)
1477	{	1944	{
1478	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1945	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1560	CODE:	2027	CODE:
1561	RETVAL = posix_fadvise (fh, offset, length, advice);	2028	RETVAL = posix_fadvise (fh, offset, length, advice);
1562	OUTPUT:	2029	OUTPUT:
1563	RETVAL	2030	RETVAL
1564		2031
1565	ssize_t	2032	IV
1566	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	2033	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1567	CODE:	2034	CODE:
1568	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2035	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1569	OUTPUT:	2036	OUTPUT:
1570	RETVAL	2037	RETVAL
1571		2038
1572	void	2039	void
1573	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2040	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1574	PPCODE:	2041	PPCODE:
1575	sv_unmagic (scalar, MMAP_MAGIC);	2042	sv_clear_foreign (scalar);
1576	{	2043	{
1577	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2044	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1578	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2045	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1579	if (addr == (void *)-1)	2046	if (addr == (void *)-1)
1580	XSRETURN_NO;	2047	XSRETURN_NO;
1581		2048
1582	sv_force_normal (scalar);	2049	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1583
1584	/* we store the length in mg_obj, as namlen is I32 :/ */
1585	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1586	->mg_obj = (SV *)length;
1587
1588	SvUPGRADE (scalar, SVt_PV); /* nop... */
1589		2050
1590	if (!(prot & PROT_WRITE))	2051	if (!(prot & PROT_WRITE))
1591	SvREADONLY_on (scalar);	2052	SvREADONLY_on (scalar);
1592		2053
1593	if (SvLEN (scalar))
1594	Safefree (SvPVX (scalar));
1595
1596	SvPVX (scalar) = (char *)addr;
1597	SvCUR_set (scalar, length);
1598	SvLEN_set (scalar, 0);
1599	SvPOK_only (scalar);
1600
1601	XSRETURN_YES;	2054	XSRETURN_YES;
1602	}	2055	}
1603		2056
1604	void	2057	void
1605	munmap (SV *scalar)	2058	munmap (SV *scalar)
1606	CODE:	2059	CODE:
1607	sv_unmagic (scalar, MMAP_MAGIC);	2060	sv_clear_foreign (scalar);
1608		2061
1609	int	2062	int
1610	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2063	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1611	ALIAS:	2064	ALIAS:
1612	mprotect = 1	2065	mprotect = 1
1613	CODE:	2066	CODE:
1614	{	2067	{
1615	STRLEN svlen;	2068	STRLEN svlen;
1616	void *addr = SvPVbyte (scalar, svlen);	2069	void *addr = SvPVbyte (scalar, svlen);
1617	size_t len = SvUV (length);	2070	STRLEN len = SvUV (length);
1618		2071
1619	if (offset < 0)	2072	if (offset < 0)
1620	offset += svlen;	2073	offset += svlen;
1621		2074
1622	if (offset < 0 || offset > svlen)	2075	if (offset < 0 || offset > svlen)
…		…
1636	}	2089	}
1637	OUTPUT:	2090	OUTPUT:
1638	RETVAL	2091	RETVAL
1639		2092
1640	int	2093	int
1641	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2094	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1642	CODE:	2095	CODE:
1643	{	2096	{
1644	STRLEN svlen;	2097	STRLEN svlen;
1645	void *addr = SvPVbyte (scalar, svlen);	2098	void *addr = SvPVbyte (scalar, svlen);
1646	size_t len = SvUV (length);	2099	size_t len = SvUV (length);
1647		2100
1648	if (offset < 0)	2101	if (offset < 0)
1649	offset += svlen;	2102	offset += svlen;
1650		2103
…		…
1657	addr = (void *)(((intptr_t)addr) + offset);	2110	addr = (void *)(((intptr_t)addr) + offset);
1658	eio_page_align (&addr, &len);	2111	eio_page_align (&addr, &len);
1659	#if _POSIX_MEMLOCK_RANGE	2112	#if _POSIX_MEMLOCK_RANGE
1660	RETVAL = munlock (addr, len);	2113	RETVAL = munlock (addr, len);
1661	#else	2114	#else
1662	RETVAL = ((errno = ENOSYS), -1);	2115	RETVAL = EIO_ENOSYS ();
1663	#endif	2116	#endif
1664	}	2117	}
1665	OUTPUT:	2118	OUTPUT:
1666	RETVAL	2119	RETVAL
1667		2120
…		…
1669	munlockall ()	2122	munlockall ()
1670	CODE:	2123	CODE:
1671	#if _POSIX_MEMLOCK	2124	#if _POSIX_MEMLOCK
1672	munlockall ();	2125	munlockall ();
1673	#else	2126	#else
1674	RETVAL = -1;	2127	RETVAL = EIO_ENOSYS ();
1675	errno = ENOSYS;
1676	#endif	2128	#endif
1677	OUTPUT:	2129	OUTPUT:
1678	RETVAL	2130	RETVAL
		2131
		2132	int
		2133	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2134	CODE:
		2135	{
		2136	#if HAVE_LINUX_SPLICE
		2137	loff_t off_in_, off_out_;
		2138	RETVAL = splice (
		2139	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2140	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2141	length, flags
		2142	);
		2143	#else
		2144	RETVAL = EIO_ENOSYS ();
		2145	#endif
		2146	}
		2147	OUTPUT:
		2148	RETVAL
		2149
		2150	int
		2151	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2152	CODE:
		2153	#if HAVE_LINUX_SPLICE
		2154	RETVAL = tee (rfh, wfh, length, flags);
		2155	#else
		2156	RETVAL = EIO_ENOSYS ();
		2157	#endif
		2158	OUTPUT:
		2159	RETVAL
		2160
		2161	int
		2162	pipesize (aio_rfd rfh, int new_size = -1)
		2163	PROTOTYPE: $;$
		2164	CODE:
		2165	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2166	if (new_size >= 0)
		2167	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2168	else
		2169	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2170	#else
		2171	errno = ENOSYS;
		2172	RETVAL = -1;
		2173	#endif
		2174	OUTPUT:
		2175	RETVAL
		2176
		2177	void
		2178	pipe2 (int flags = 0)
		2179	PROTOTYPE: ;$
		2180	PPCODE:
		2181	{
		2182	int fd[2];
		2183	int res;
		2184
		2185	if (flags)
		2186	#if HAVE_PIPE2
		2187	res = pipe2 (fd, flags);
		2188	#else
		2189	res = (errno = ENOSYS, -1);
		2190	#endif
		2191	else
		2192	res = pipe (fd);
		2193
		2194	if (!res)
		2195	{
		2196	EXTEND (SP, 2);
		2197	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2198	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2199	}
		2200	}
		2201
		2202	void
		2203	eventfd (unsigned int initval = 0, int flags = 0)
		2204	PPCODE:
		2205	{
		2206	int fd;
		2207	#if HAVE_EVENTFD
		2208	fd = eventfd (initval, flags);
		2209	#else
		2210	fd = (errno = ENOSYS, -1);
		2211	#endif
		2212
		2213	XPUSHs (newmortalFH (fd, O_RDWR));
		2214	}
		2215
		2216	void
		2217	timerfd_create (int clockid, int flags = 0)
		2218	PPCODE:
		2219	{
		2220	int fd;
		2221	#if HAVE_TIMERFD
		2222	fd = timerfd_create (clockid, flags);
		2223	#else
		2224	fd = (errno = ENOSYS, -1);
		2225	#endif
		2226
		2227	XPUSHs (newmortalFH (fd, O_RDWR));
		2228	}
		2229
		2230	void
		2231	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2232	PPCODE:
		2233	{
		2234	int fd = s_fileno_croak (fh, 0);
		2235	int res;
		2236	struct itimerspec its, ots;
		2237
		2238	ts_set (&its.it_interval, interval);
		2239	ts_set (&its.it_value , value);
		2240	#if HAVE_TIMERFD
		2241	res = timerfd_settime (fd, flags, &its, &ots);
		2242	#else
		2243	res = (errno = ENOSYS, -1);
		2244	#endif
		2245
		2246	if (!res)
		2247	{
		2248	EXTEND (SP, 2);
		2249	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2250	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2251	}
		2252	}
		2253
		2254	void
		2255	timerfd_gettime (SV *fh)
		2256	PPCODE:
		2257	{
		2258	int fd = s_fileno_croak (fh, 0);
		2259	int res;
		2260	struct itimerspec ots;
		2261	#if HAVE_TIMERFD
		2262	res = timerfd_gettime (fd, &ots);
		2263	#else
		2264	res = (errno = ENOSYS, -1);
		2265	#endif
		2266
		2267	if (!res)
		2268	{
		2269	EXTEND (SP, 2);
		2270	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2271	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2272	}
		2273	}
		2274
		2275	UV
		2276	get_fdlimit ()
		2277	CODE:
		2278	#if HAVE_RLIMITS
		2279	struct rlimit rl;
		2280	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2281	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2282	#endif
		2283	XSRETURN_UNDEF;
		2284	OUTPUT:
		2285	RETVAL
		2286
		2287	void
		2288	min_fdlimit (UV limit = 0x7fffffffU)
		2289	CODE:
		2290	{
		2291	#if HAVE_RLIMITS
		2292	struct rlimit rl;
		2293	rlim_t orig_rlim_max;
		2294	UV bit;
		2295
		2296	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2297	goto fail;
		2298
		2299	if (rl.rlim_cur == RLIM_INFINITY)
		2300	XSRETURN_YES;
		2301
		2302	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2303
		2304	if (rl.rlim_cur < limit)
		2305	{
		2306	rl.rlim_cur = limit;
		2307
		2308	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2309	rl.rlim_max = rl.rlim_cur;
		2310	}
		2311
		2312	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2313	XSRETURN_YES;
		2314
		2315	if (errno == EPERM)
		2316	{
		2317	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2318	/* our limit overflows a system-wide limit */
		2319	/* try an adaptive algorithm, but do not lower the hardlimit */
		2320	rl.rlim_max = 0;
		2321	for (bit = 0x40000000U; bit; bit >>= 1)
		2322	{
		2323	rl.rlim_max |= bit;
		2324	rl.rlim_cur = rl.rlim_max;
		2325
		2326	/* nevr decrease the hard limit */
		2327	if (rl.rlim_max < orig_rlim_max)
		2328	break;
		2329
		2330	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2331	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2332	}
		2333
		2334	/* now, raise the soft limit to the max permitted */
		2335	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2336	{
		2337	rl.rlim_cur = rl.rlim_max;
		2338	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2339	errno = EPERM;
		2340	}
		2341	}
		2342	#endif
		2343	fail:
		2344	XSRETURN_UNDEF;
		2345	}
1679		2346
1680	void _on_next_submit (SV *cb)	2347	void _on_next_submit (SV *cb)
1681	CODE:	2348	CODE:
1682	SvREFCNT_dec (on_next_submit);	2349	SvREFCNT_dec (on_next_submit);
1683	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2350	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1684		2351
1685	PROTOTYPES: DISABLE	2352	PROTOTYPES: DISABLE
1686		2353
		2354	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2355
		2356	BOOT:
		2357	{
		2358	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2359	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2360	}
		2361
		2362	void
		2363	DESTROY (SV *self)
		2364	CODE:
		2365	{
		2366	aio_wd wd = SvAIO_WD (self);
		2367	#if HAVE_AT
		2368	{
		2369	SV *callback = &PL_sv_undef;
		2370	dREQ; /* clobbers next_pri :/ */
		2371	next_pri = req->pri; /* restore next_pri */
		2372	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2373	req->type = EIO_WD_CLOSE;
		2374	req->wd = wd;
		2375	REQ_SEND;
		2376	}
		2377	#else
		2378	eio_wd_close_sync (wd);
		2379	#endif
		2380	}
		2381
1687	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2382	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1688		2383
1689	void	2384	void
1690	cancel (aio_req_ornot req)	2385	cancel (aio_req_ornot req)
1691	CODE:	2386	CODE:
1692	eio_cancel (req);	2387	eio_cancel (req);
1693		2388
1694	void	2389	void
1695	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2390	cb (aio_req_ornot req, SV *callback = NO_INIT)
1696	PPCODE:	2391	PPCODE:
1697	{	2392	{
1698	if (GIMME_V != G_VOID)	2393	if (GIMME_V != G_VOID)
1699	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2394	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1700		2395
1701	if (items > 1)	2396	if (items > 1)
1702	{	2397	{
1703	SV *cb_cv =get_cb (callback);	2398	SV *cb_cv = get_cb (callback);
1704		2399
1705	SvREFCNT_dec (req->callback);	2400	SvREFCNT_dec (req->callback);
1706	req->callback = SvREFCNT_inc (cb_cv);	2401	req->callback = SvREFCNT_inc (cb_cv);
1707	}	2402	}
1708	}	2403	}
…		…
1765	limit (aio_req grp, int limit)	2460	limit (aio_req grp, int limit)
1766	CODE:	2461	CODE:
1767	eio_grp_limit (grp, limit);	2462	eio_grp_limit (grp, limit);
1768		2463
1769	void	2464	void
1770	feed (aio_req grp, SV *callback=&PL_sv_undef)	2465	feed (aio_req grp, SV *callback = &PL_sv_undef)
1771	CODE:	2466	CODE:
1772	{	2467	{
1773	SvREFCNT_dec (grp->sv2);	2468	SvREFCNT_dec (grp->sv2);
1774	grp->sv2 = newSVsv (callback);	2469	grp->sv2 = newSVsv (callback);
1775	grp->feed = aio_grp_feed;	2470	grp->feed = aio_grp_feed;

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