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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.184 by root, Tue Jul 5 20:34:42 2011 UTC vs.
Revision 1.258 by root, Wed Jul 18 00:57:55 2018 UTC

…		…
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
8		8
9	#include "schmorp.h"	9	#if !defined mg_findext
		10	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		11	#endif
10		12
11	#include <stddef.h>	13	#include <stddef.h>
12	#include <stdlib.h>	14	#include <stdlib.h>
13	#include <errno.h>	15	#include <errno.h>
14	#include <sys/types.h>	16	#include <sys/types.h>
15	#include <sys/stat.h>	17	#include <sys/stat.h>
16	#include <sys/statvfs.h>
17	#include <limits.h>	18	#include <limits.h>
18	#include <fcntl.h>	19	#include <fcntl.h>
19	#include <sched.h>	20	#include <sched.h>
20		21
21	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	22	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22	# include <sys/mman.h>	23	# include <sys/mman.h>
23	#endif	24	#endif
24		25
		26	/* the incompetent fool that created musl keeps __linux__, refuses
		27	* to implement any linux standard apis, and also has no way to test
		28	* for his broken iplementation. don't complain to me if this fails
		29	* for you.
		30	*/
		31	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		32	# include <linux/fs.h>
		33	# ifdef FS_IOC_FIEMAP
		34	# include <linux/types.h>
		35	# include <linux/fiemap.h>
		36	# define HAVE_FIEMAP 1
		37	# endif
		38	#endif
		39
25	/* perl namespace pollution */	40	/* perl namespace pollution */
26	#undef VERSION	41	#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		42
77	/* perl stupidly overrides readdir and maybe others */	43	/* perl stupidly overrides readdir and maybe others */
78	/* with thread-unsafe versions, imagine that :( */	44	/* with thread-unsafe versions, imagine that :( */
79	#undef readdir	45	#undef readdir
80	#undef opendir	46	#undef opendir
81	#undef closedir	47	#undef closedir
82		48
		49	#ifdef _WIN32
		50
		51	// perl overrides all those nice libc functions
		52
		53	#undef malloc
		54	#undef free
		55	#undef open
		56	#undef read
		57	#undef write
		58	#undef send
		59	#undef recv
		60	#undef stat
		61	#undef lstat
		62	#undef fstat
		63	#undef truncate
		64	#undef ftruncate
		65	#undef open
		66	#undef link
		67	#undef close
		68	#undef unlink
		69	#undef mkdir
		70	#undef rmdir
		71	#undef rename
		72	#undef lseek
		73	#undef opendir
		74	#undef readdir
		75	#undef closedir
		76	#undef chmod
		77	#undef fchmod
		78	#undef dup
		79	#undef dup2
		80	#undef abort
		81	#undef pipe
		82
		83	#define EIO_STRUCT_STAT struct _stati64
83	#define EIO_STRUCT_STAT Stat_t	84	#define EIO_STRUCT_STATI64
84		85
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	86	#else
91	# define VAL64 NV	87
92	# define SvVAL64 SvNV	88	#include <sys/time.h>
93	# define newSVval64 newSVnv	89	#include <sys/select.h>
		90	#include <unistd.h>
		91	#include <utime.h>
		92	#include <signal.h>
		93
		94	#define EIO_STRUCT_STAT Stat_t
		95
94	#endif	96	#endif
95		97
96	/*****************************************************************************/	98	/*****************************************************************************/
97		99
98	#if __GNUC__ >= 3	100	#if __GNUC__ >= 3
…		…
104	#define expect_false(expr) expect ((expr) != 0, 0)	106	#define expect_false(expr) expect ((expr) != 0, 0)
105	#define expect_true(expr) expect ((expr) != 0, 1)	107	#define expect_true(expr) expect ((expr) != 0, 1)
106		108
107	/*****************************************************************************/	109	/*****************************************************************************/
108		110
		111	#include "libeio/config.h"
		112
		113	#include "schmorp.h"
		114
		115	#if HAVE_EVENTFD
		116	# include <sys/eventfd.h>
		117	#endif
		118
		119	#if HAVE_TIMERFD
		120	# include <sys/timerfd.h>
		121	#endif
		122
		123	#if HAVE_RLIMITS
		124	#include <sys/time.h>
		125	#include <sys/resource.h>
		126	#endif
		127
109	typedef SV SV8; /* byte-sv, used for argument-checking */	128	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	129	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	130	typedef int aio_wfd; /* write file descriptor */
112		131
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	132	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		133
115	#define EIO_REQ_MEMBERS \	134	#define EIO_REQ_MEMBERS \
116	SV *callback; \	135	SV *callback; \
117	SV *sv1, *sv2; \	136	SV *sv1, *sv2; \
		137	SV *sv3, *sv4; \
118	STRLEN stroffset; \	138	STRLEN stroffset; \
119	SV *self;	139	SV *self;
120		140
121	#define EIO_NO_WRAPPERS 1	141	#define EIO_NO_WRAPPERS 1
122		142
123	#include "libeio/config.h"
124	#include "libeio/eio.h"	143	#include "libeio/eio.h"
125		144
126	/* Linux/others */	145	static int req_invoke (eio_req *req);
127	#ifndef O_ASYNC	146	#define EIO_FINISH(req) req_invoke (req)
128	# define O_ASYNC 0	147	static void req_destroy (eio_req *grp);
129	#endif	148	#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		149
137	/* POSIX */	150	#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		151
191	#if !HAVE_POSIX_FADVISE	152	#if !HAVE_POSIX_FADVISE
192	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	153	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
193	#endif	154	#endif
194		155
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	156	#if !HAVE_POSIX_MADVISE
212	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	157	# 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	158	#endif
283		159
284	#ifndef MAP_ANONYMOUS	160	#ifndef MAP_ANONYMOUS
285	# ifdef MAP_ANON	161	# ifdef MAP_ANON
286	# define MAP_ANONYMOUS MAP_ANON	162	# define MAP_ANONYMOUS MAP_ANON
287	# else	163	# else
288	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	164	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
289	# endif	165	# endif
290	#endif	166	#endif
291	#ifndef MAP_HUGETLB	167
292	# define MAP_HUGETLB 0	168	/* defines all sorts of constants to 0 unless they are already defined */
293	#endif	169	/* also provides const_iv_ and const_niv_ macros for them */
294	#ifndef MAP_LOCKED	170	#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		171
307	#ifndef makedev	172	#ifndef makedev
308	# define makedev(maj,min) (((maj) << 8) | (min))	173	# define makedev(maj,min) (((maj) << 8) | (min))
309	#endif	174	#endif
310	#ifndef major	175	#ifndef major
…		…
312	#endif	177	#endif
313	#ifndef minor	178	#ifndef minor
314	# define minor(dev) ((dev) & 0xff)	179	# define minor(dev) ((dev) & 0xff)
315	#endif	180	#endif
316		181
317	#ifndef PAGESIZE	182	#if PAGESIZE <= 0
318	# define PAGESIZE sysconf (_SC_PAGESIZE)	183	# define PAGESIZE sysconf (_SC_PAGESIZE)
319	#endif	184	#endif
320		185
321	static int req_invoke (eio_req *req);	186	/*****************************************************************************/
322	#define EIO_FINISH(req) req_invoke (req)	187
323	static void req_destroy (eio_req *grp);	188	#if !_POSIX_MAPPED_FILES
324	#define EIO_DESTROY(req) req_destroy (req)	189	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		190	# define munmap(addr,length) EIO_ENOSYS ()
		191	#endif
		192
		193	#if !_POSIX_MEMORY_PROTECTION
		194	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		195	#endif
		196
		197	#if !MREMAP_MAYMOVE
		198	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		199	#endif
		200
		201	#define FOREIGN_MAGIC PERL_MAGIC_ext
		202
		203	static int ecb_cold
		204	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		205	{
		206	int old_errno = errno;
		207	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		208	errno = old_errno;
		209
		210	mg->mg_obj = 0; /* just in case */
		211
		212	SvREADONLY_off (sv);
		213
		214	if (SvPVX (sv) != mg->mg_ptr)
		215	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		216
		217	SvCUR_set (sv, 0);
		218	SvPVX (sv) = 0;
		219	SvOK_off (sv);
		220
		221	return 0;
		222	}
		223
		224	static MGVTBL mmap_vtbl = {
		225	0, 0, 0, 0, mmap_free
		226	};
		227
		228	static int ecb_cold
		229	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		230	{
		231	free (mg->mg_ptr);
		232	mg->mg_obj = 0; /* just in case */
		233
		234	SvREADONLY_off (sv);
		235
		236	if (SvPVX (sv) != mg->mg_ptr)
		237	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		238
		239	SvCUR_set (sv, 0);
		240	SvPVX (sv) = 0;
		241	SvOK_off (sv);
		242
		243	return 0;
		244	}
		245
		246	static MGVTBL sysfree_vtbl = {
		247	0, 0, 0, 0, sysfree_free
		248	};
		249
		250	/*****************************************************************************/
		251
		252	/* helper: set scalar to foreign ptr with custom free */
		253	static void
		254	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		255	{
		256	sv_force_normal (sv);
		257
		258	/* we store the length in mg_obj, as namlen is I32 :/ */
		259	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		260	->mg_obj = (SV *)length;
		261
		262	SvUPGRADE (sv, SVt_PV); /* nop... */
		263
		264	if (SvLEN (sv))
		265	Safefree (SvPVX (sv));
		266
		267	SvPVX (sv) = (char *)addr;
		268	SvCUR_set (sv, length);
		269	SvLEN_set (sv, 0);
		270	SvPOK_only (sv);
		271	}
		272
		273	static void
		274	sv_clear_foreign (SV *sv)
		275	{
		276	/* todo: iterate over magic and only free ours, but of course */
		277	/* the perl5porters will call that (correct) behaviour buggy */
		278	sv_unmagic (sv, FOREIGN_MAGIC);
		279	}
		280
		281	/*****************************************************************************/
		282
		283	static void
		284	fiemap (eio_req *req)
		285	{
		286	req->result = -1;
		287
		288	#if HAVE_FIEMAP
		289	/* assume some c99 */
		290	struct fiemap *fiemap = 0;
		291	size_t end_offset;
		292	int count = req->int3;
		293
		294	req->flags |= EIO_FLAG_PTR1_FREE;
		295
		296	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		297	/* increase in 3.5kb steps */
		298	if (count < 0)
		299	count = 8;
		300
		301	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		302	errno = ENOMEM;
		303	if (!fiemap)
		304	return;
		305
		306	req->ptr1 = fiemap;
		307
		308	fiemap->fm_start = req->offs;
		309	fiemap->fm_length = req->size;
		310	fiemap->fm_flags = req->int2;
		311	fiemap->fm_extent_count = count;
		312
		313	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		314	return;
		315
		316	if (req->int3 >= 0 /* not autosizing */
		317	|| !fiemap->fm_mapped_extents /* no more extents */
		318	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		319	goto done;
		320
		321	/* else we have to loop -
		322	* it would be tempting (actually I tried that first) to just query the
		323	* number of extents needed, but linux often feels like not returning all
		324	* extents, without telling us it left any out. this complicates
		325	* this quite a bit.
		326	*/
		327
		328	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		329
		330	for (;;)
		331	{
		332	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		333	char scratch[3072];
		334	struct fiemap *incmap = (struct fiemap *)scratch;
		335
		336	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		337	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		338	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		339	incmap->fm_flags = fiemap->fm_flags;
		340	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		341
		342	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		343	return;
		344
		345	if (!incmap->fm_mapped_extents)
		346	goto done;
		347
		348	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		349	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		350	errno = ENOMEM;
		351	if (!fiemap)
		352	return;
		353
		354	req->ptr1 = fiemap;
		355
		356	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		357	{
		358	struct fiemap_extent *e = incmap->fm_extents + count;
		359
		360	if (e->fe_logical + e->fe_length >= end_offset)
		361	goto done;
		362
		363	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		364
		365	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		366	goto done;
		367
		368	}
		369	}
		370
		371	done:
		372	req->result = 0;
		373
		374	#else
		375	errno = ENOSYS;
		376	#endif
		377	}
		378
		379	/*****************************************************************************/
325		380
326	enum {	381	enum {
327	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	382	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
328	};	383	};
329		384
330	#include "libeio/eio.c"
331
332	typedef eio_req *aio_req;	385	typedef eio_req *aio_req;
333	typedef eio_req *aio_req_ornot;	386	typedef eio_req *aio_req_ornot;
		387	typedef eio_wd aio_wd;
334		388
335	static SV *on_next_submit;	389	static SV *on_next_submit;
336	static int next_pri = EIO_PRI_DEFAULT;	390	static int next_pri = EIO_PRI_DEFAULT;
337	static int max_outstanding;	391	static int max_outstanding;
338		392
339	static s_epipe respipe;	393	static s_epipe respipe;
340		394
341	static void req_destroy (aio_req req);	395	static void req_destroy (aio_req req);
342	static void req_cancel (aio_req req);	396	static void req_cancel (aio_req req);
343		397
344	static void want_poll (void)	398	static void
		399	want_poll (void)
345	{	400	{
346	/* write a dummy byte to the pipe so fh becomes ready */	401	/* write a dummy byte to the pipe so fh becomes ready */
347	s_epipe_signal (&respipe);	402	s_epipe_signal (&respipe);
348	}	403	}
349		404
350	static void done_poll (void)	405	static void
		406	done_poll (void)
351	{	407	{
352	/* read any signals sent by the worker threads */	408	/* read any signals sent by the worker threads */
353	s_epipe_drain (&respipe);	409	s_epipe_drain (&respipe);
354	}	410	}
355		411
356	/* must be called at most once */	412	/* must be called at most once */
		413	static SV *
357	static SV *req_sv (aio_req req, HV *stash)	414	req_sv (aio_req req, HV *stash)
358	{	415	{
359	if (!req->self)	416	if (!req->self)
360	{	417	{
361	req->self = (SV *)newHV ();	418	req->self = (SV *)newHV ();
362	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	419	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
363	}	420	}
364		421
365	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	422	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
366	}	423	}
367		424
368	static aio_req SvAIO_REQ (SV *sv)	425	static SV *
		426	newSVaio_wd (aio_wd wd)
		427	{
		428	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		429	}
		430
		431	static aio_req
		432	SvAIO_REQ (SV *sv)
369	{	433	{
370	MAGIC *mg;	434	MAGIC *mg;
371		435
372	if (!SvROK (sv)	436	if (!SvROK (sv)
		437	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
373	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	438	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
374	&& SvSTASH (SvRV (sv)) != aio_req_stash	439	&& SvSTASH (SvRV (sv)) != aio_req_stash
375	&& !sv_derived_from (sv, "IO::AIO::REQ")))	440	&& !sv_derived_from (sv, "IO::AIO::REQ")))
376	croak ("object of class IO::AIO::REQ expected");	441	croak ("object of class IO::AIO::REQ expected");
377		442
378	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	443	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
379		444
380	return mg ? (aio_req)mg->mg_ptr : 0;	445	return mg ? (aio_req)mg->mg_ptr : 0;
381	}	446	}
382		447
		448	static aio_wd
		449	SvAIO_WD (SV *sv)
		450	{
		451	if (!SvROK (sv)
		452	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		453	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		454	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		455
		456	return (aio_wd)(long)SvIVX (SvRV (sv));
		457	}
		458
		459	static SV *
		460	newmortalFH (int fd, int flags)
		461	{
		462	if (fd < 0)
		463	return &PL_sv_undef;
		464
		465	GV *gv = (GV *)sv_newmortal ();
		466	char sym[64];
		467	int symlen;
		468
		469	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		470	gv_init (gv, aio_stash, sym, symlen, 0);
		471
		472	symlen = snprintf (
		473	sym,
		474	sizeof (sym),
		475	"%s&=%d",
		476	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		477	fd
		478	);
		479
		480	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		481	? (SV *)gv : &PL_sv_undef;
		482	}
		483
		484	static void
383	static void aio_grp_feed (aio_req grp)	485	aio_grp_feed (aio_req grp)
384	{	486	{
385	if (grp->sv2 && SvOK (grp->sv2))	487	if (grp->sv2 && SvOK (grp->sv2))
386	{	488	{
387	dSP;	489	dSP;
388		490
…		…
396	FREETMPS;	498	FREETMPS;
397	LEAVE;	499	LEAVE;
398	}	500	}
399	}	501	}
400		502
		503	static void
401	static void req_submit (eio_req *req)	504	req_submit (eio_req *req)
402	{	505	{
403	eio_submit (req);	506	eio_submit (req);
404		507
405	if (expect_false (on_next_submit))	508	if (expect_false (on_next_submit))
406	{	509	{
…		…
413	PUTBACK;	516	PUTBACK;
414	call_sv (cb, G_DISCARD | G_EVAL);	517	call_sv (cb, G_DISCARD | G_EVAL);
415	}	518	}
416	}	519	}
417		520
		521	static int
418	static int req_invoke (eio_req *req)	522	req_invoke (eio_req *req)
419	{	523	{
420	if (req->flags & FLAG_SV2_RO_OFF)	524	if (req->flags & FLAG_SV2_RO_OFF)
421	SvREADONLY_off (req->sv2);	525	SvREADONLY_off (req->sv2);
422		526
423	if (!EIO_CANCELLED (req) && req->callback)	527	if (!EIO_CANCELLED (req) && req->callback)
…		…
444	SvREADONLY_on (sv_result);	548	SvREADONLY_on (sv_result);
445	}	549	}
446		550
447	switch (req->type)	551	switch (req->type)
448	{	552	{
		553	case EIO_WD_OPEN:
		554	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		555	break;
		556
449	case EIO_READDIR:	557	case EIO_READDIR:
450	{	558	{
451	SV *rv = &PL_sv_undef;	559	SV *rv = &PL_sv_undef;
452		560
453	if (req->result >= 0)	561	if (req->result >= 0)
…		…
506	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	614	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
507	}	615	}
508	break;	616	break;
509		617
510	case EIO_OPEN:	618	case EIO_OPEN:
511	{	619	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;	620	break;
540		621
541	case EIO_STATVFS:	622	case EIO_STATVFS:
542	case EIO_FSTATVFS:	623	case EIO_FSTATVFS:
543	{	624	{
544	SV *rv = &PL_sv_undef;	625	SV *rv = &PL_sv_undef;
545		626
		627	#ifndef _WIN32
546	if (req->result >= 0)	628	if (req->result >= 0)
547	{	629	{
548	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	630	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
549	HV *hv = newHV ();	631	HV *hv = newHV ();
		632	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		633	* chooses to make it a struct.
		634	*/
		635	unsigned long fsid = 0;
		636	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
550		637
551	rv = sv_2mortal (newRV_noinc ((SV *)hv));	638	rv = sv_2mortal (newRV_noinc ((SV *)hv));
552		639
553	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	640	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);	641	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);	643	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);	644	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);	645	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);	646	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);	647	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);	648	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
562	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	649	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);	650	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
564	}	651	}
		652	#endif
565		653
566	PUSHs (rv);	654	PUSHs (rv);
567	}	655	}
568		656
569	break;	657	break;
…		…
593	break;	681	break;
594		682
595	case EIO_STAT:	683	case EIO_STAT:
596	case EIO_LSTAT:	684	case EIO_LSTAT:
597	case EIO_FSTAT:	685	case EIO_FSTAT:
598	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	686	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		687
599	PL_laststatval = req->result;	688	if (!(PL_laststatval = req->result))
		689	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
600	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	690	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		691
601	PUSHs (sv_result);	692	PUSHs (sv_result);
		693	break;
		694
		695	case EIO_SEEK:
		696	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
602	break;	697	break;
603		698
604	case EIO_READ:	699	case EIO_READ:
605	{	700	{
606	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	701	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
609	SvSETMAGIC (req->sv2);	704	SvSETMAGIC (req->sv2);
610	PUSHs (sv_result);	705	PUSHs (sv_result);
611	}	706	}
612	break;	707	break;
613		708
		709	case EIO_SLURP:
		710	{
		711	if (req->result >= 0)
		712	{
		713	/* if length was originally not known, we steal the malloc'ed memory */
		714	if (req->flags & EIO_FLAG_PTR2_FREE)
		715	{
		716	req->flags &= ~EIO_FLAG_PTR2_FREE;
		717	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		718	}
		719	else
		720	{
		721	SvCUR_set (req->sv2, req->result);
		722	*SvEND (req->sv2) = 0;
		723	SvPOK_only (req->sv2);
		724	}
		725
		726	SvSETMAGIC (req->sv2);
		727	}
		728
		729	PUSHs (sv_result);
		730	}
		731	break;
		732
		733	case EIO_CUSTOM:
		734	if (req->feed == fiemap)
		735	{
		736	#if HAVE_FIEMAP
		737	if (!req->result)
		738	{
		739	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		740
		741	if (fiemap->fm_extent_count)
		742	{
		743	AV *av = newAV ();
		744	int i;
		745
		746	while (fiemap->fm_mapped_extents)
		747	{
		748	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		749	AV *ext_av = newAV ();
		750
		751	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		752	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		753	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		754	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		755
		756	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		757	}
		758
		759	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		760	}
		761	else
		762	{
		763	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		764	PUSHs (sv_result);
		765	}
		766	}
		767	#endif
		768	}
		769	else
		770	PUSHs (sv_result);
		771	break;
		772
614	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	773	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
615	if (req->result > 0)	774	if (req->result > 0)
616	SvIV_set (sv_result, 0);	775	SvIV_set (sv_result, 0);
617	/* FALLTHROUGH */	776	/* FALLTHROUGH */
618		777
…		…
639	}	798	}
640		799
641	return !!SvTRUE (ERRSV);	800	return !!SvTRUE (ERRSV);
642	}	801	}
643		802
		803	static void
644	static void req_destroy (aio_req req)	804	req_destroy (aio_req req)
645	{	805	{
646	if (req->self)	806	if (req->self)
647	{	807	{
648	sv_unmagic (req->self, PERL_MAGIC_ext);	808	sv_unmagic (req->self, PERL_MAGIC_ext);
649	SvREFCNT_dec (req->self);	809	SvREFCNT_dec (req->self);
650	}	810	}
651		811
652	SvREFCNT_dec (req->sv1);	812	SvREFCNT_dec (req->sv1);
653	SvREFCNT_dec (req->sv2);	813	SvREFCNT_dec (req->sv2);
		814	SvREFCNT_dec (req->sv3);
		815	SvREFCNT_dec (req->sv4);
654	SvREFCNT_dec (req->callback);	816	SvREFCNT_dec (req->callback);
655		817
656	Safefree (req);	818	free (req);
657	}	819	}
658		820
		821	static void
659	static void req_cancel_subs (aio_req grp)	822	req_cancel_subs (aio_req grp)
660	{	823	{
661	aio_req sub;
662
663	if (grp->type != EIO_GROUP)	824	if (grp->type != EIO_GROUP)
664	return;	825	return;
665		826
666	SvREFCNT_dec (grp->sv2);	827	SvREFCNT_dec (grp->sv2);
667	grp->sv2 = 0;	828	grp->sv2 = 0;
668		829
669	eio_grp_cancel (grp);	830	eio_grp_cancel (grp);
670	}	831	}
671		832
		833	static void ecb_cold
672	static void create_respipe (void)	834	create_respipe (void)
673	{	835	{
674	if (s_epipe_renew (&respipe))	836	if (s_epipe_renew (&respipe))
675	croak ("IO::AIO: unable to initialize result pipe");	837	croak ("IO::AIO: unable to initialize result pipe");
676	}	838	}
677		839
678	static void poll_wait (void)	840	static void
		841	poll_wait (void)
679	{	842	{
680	while (eio_nreqs ())	843	while (eio_nreqs ())
681	{	844	{
682	int size;	845	int size;
683		846
684	X_LOCK (reslock);	847	X_LOCK (EIO_POOL->reslock);
685	size = res_queue.size;	848	size = EIO_POOL->res_queue.size;
686	X_UNLOCK (reslock);	849	X_UNLOCK (EIO_POOL->reslock);
687		850
688	if (size)	851	if (size)
689	return;	852	return;
690		853
691	etp_maybe_start_thread ();	854	etp_maybe_start_thread (EIO_POOL);
692		855
693	s_epipe_wait (&respipe);	856	s_epipe_wait (&respipe);
694	}	857	}
695	}	858	}
696		859
697	static int poll_cb (void)	860	static int
		861	poll_cb (void)
698	{	862	{
699	for (;;)	863	for (;;)
700	{	864	{
701	int res = eio_poll ();	865	int res = eio_poll ();
702		866
…		…
708		872
709	poll_wait ();	873	poll_wait ();
710	}	874	}
711	}	875	}
712		876
713	static void atfork_child (void)	877	static void ecb_cold
		878	reinit (void)
714	{	879	{
715	create_respipe ();	880	create_respipe ();
		881
		882	if (eio_init (want_poll, done_poll) < 0)
		883	croak ("IO::AIO: unable to initialise eio library");
716	}	884	}
717		885
718	/*****************************************************************************/	886	/*****************************************************************************/
719		887
720	#if !_POSIX_MAPPED_FILES	888	static SV *
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 mmap_free (pTHX_ SV *sv, MAGIC *mg)
737	{
738	int old_errno = errno;
739	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
740	errno = old_errno;
741
742	mg->mg_obj = 0; /* just in case */
743
744	SvREADONLY_off (sv);
745
746	if (SvPVX (sv) != mg->mg_ptr)
747	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
748
749	SvCUR_set (sv, 0);
750	SvPVX (sv) = 0;
751	SvOK_off (sv);
752
753	return 0;
754	}
755
756	static MGVTBL mmap_vtbl = {
757	0, 0, 0, 0, mmap_free
758	};
759
760	/*****************************************************************************/
761
762	static SV * get_cb (SV *cb_sv)	889	get_cb (SV *cb_sv)
763	{	890	{
764	SvGETMAGIC (cb_sv);	891	SvGETMAGIC (cb_sv);
765	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	892	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
766	}	893	}
767		894
		895	static aio_req ecb_noinline
		896	dreq (SV *callback)
		897	{
		898	SV *cb_cv;
		899	aio_req req;
		900	int req_pri = next_pri;
		901	next_pri = EIO_PRI_DEFAULT;
		902
		903	cb_cv = get_cb (callback);
		904
		905	req = calloc (sizeof (*req), 1);
		906	if (!req)
		907	croak ("out of memory during eio_req allocation");
		908
		909	req->callback = SvREFCNT_inc (cb_cv);
		910	req->pri = req_pri;
		911
		912	return req;
		913	}
		914
768	#define dREQ \	915	#define dREQ \
769	SV *cb_cv; \	916	aio_req req = dreq (callback); \
770	aio_req req; \
771	int req_pri = next_pri; \
772	next_pri = EIO_PRI_DEFAULT; \
773	\
774	cb_cv = get_cb (callback); \
775	\
776	Newz (0, req, 1, eio_req); \
777	if (!req) \
778	croak ("out of memory during eio_req allocation"); \
779	\
780	req->callback = SvREFCNT_inc (cb_cv); \
781	req->pri = req_pri
782		917
783	#define REQ_SEND \	918	#define REQ_SEND \
784	PUTBACK; \	919	PUTBACK; \
785	req_submit (req); \	920	req_submit (req); \
786	SPAGAIN; \	921	SPAGAIN; \
787	\	922	\
788	if (GIMME_V != G_VOID) \	923	if (GIMME_V != G_VOID) \
789	XPUSHs (req_sv (req, aio_req_stash));	924	XPUSHs (req_sv (req, aio_req_stash));
790		925
		926	ecb_inline void
		927	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		928	{
		929	if (expect_false (SvROK (path)))
		930	{
		931	SV *rv = SvRV (path);
		932	SV *wdob;
		933
		934	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		935	{
		936	path = AvARRAY (rv)[1];
		937	wdob = AvARRAY (rv)[0];
		938
		939	if (SvOK (wdob))
		940	{
		941	*wd = SvAIO_WD (wdob);
		942	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		943	}
		944	else
		945	*wd = EIO_INVALID_WD;
		946	}
		947	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		948	{
		949	*wd = (aio_wd)(long)SvIVX (rv);
		950	*wdsv = SvREFCNT_inc_NN (rv);
		951	*ptr = ".";
		952	return; /* path set to "." */
		953	}
		954	else
		955	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		956	}
		957
		958	*pathsv = newSVsv (path);
		959	*ptr = SvPVbyte_nolen (*pathsv);
		960	}
		961
		962	static void ecb_noinline
		963	req_set_path1 (aio_req req, SV *path)
		964	{
		965	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		966	}
		967
		968	static void ecb_noinline
		969	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		970	{
		971	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		972
		973	switch (SvTYPE (rv))
		974	{
		975	case SVt_PVIO:
		976	case SVt_PVLV:
		977	case SVt_PVGV:
		978	req->type = type_fh;
		979	req->sv1 = newSVsv (fh_or_path);
		980	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		981	break;
		982
		983	default:
		984	req->type = type_path;
		985	req_set_path1 (req, fh_or_path);
		986	break;
		987	}
		988	}
		989
		990	/*****************************************************************************/
		991
		992	static void
		993	ts_set (struct timespec *ts, NV value)
		994	{
		995	ts->tv_sec = value;
		996	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		997	}
		998
		999	static NV
		1000	ts_get (const struct timespec *ts)
		1001	{
		1002	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1003	}
		1004
		1005	/*****************************************************************************/
		1006
		1007	XS(boot_IO__AIO) ecb_cold;
		1008
791	MODULE = IO::AIO PACKAGE = IO::AIO	1009	MODULE = IO::AIO PACKAGE = IO::AIO
792		1010
793	PROTOTYPES: ENABLE	1011	PROTOTYPES: ENABLE
794		1012
795	BOOT:	1013	BOOT:
…		…
799	IV iv;	1017	IV iv;
800	} *civ, const_iv[] = {	1018	} *civ, const_iv[] = {
801	# define const_niv(name, value) { # name, (IV) value },	1019	# define const_niv(name, value) { # name, (IV) value },
802	# define const_iv(name) { # name, (IV) name },	1020	# define const_iv(name) { # name, (IV) name },
803	# define const_eio(name) { # name, (IV) EIO_ ## name },	1021	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1022
		1023	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1024	/* the first block can be undef if missing */
		1025	const_iv (ENOSYS)
804	const_iv (EXDEV)	1026	const_iv (EXDEV)
805	const_iv (ENOSYS)	1027	const_iv (EBADR)
		1028
		1029	/* for lseek */
		1030	const_iv (SEEK_DATA)
		1031	const_iv (SEEK_HOLE)
		1032
		1033	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1034	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1035	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1036	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1037	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1038	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1039
		1040	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1041	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1042	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1043	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1044	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1045
		1046	/* the second block will be 0 when missing */
806	const_iv (O_RDONLY)	1047	const_iv (O_RDONLY)
807	const_iv (O_WRONLY)	1048	const_iv (O_WRONLY)
808	const_iv (O_RDWR)	1049	const_iv (O_RDWR)
809	const_iv (O_CREAT)	1050	const_iv (O_CREAT)
810	const_iv (O_TRUNC)	1051	const_iv (O_TRUNC)
…		…
823	const_iv (O_SEARCH)	1064	const_iv (O_SEARCH)
824	const_iv (O_DIRECTORY)	1065	const_iv (O_DIRECTORY)
825	const_iv (O_DSYNC)	1066	const_iv (O_DSYNC)
826	const_iv (O_RSYNC)	1067	const_iv (O_RSYNC)
827	const_iv (O_SYNC)	1068	const_iv (O_SYNC)
		1069	const_iv (O_PATH)
		1070	const_iv (O_TMPFILE)
828	const_iv (O_TTY_INIT)	1071	const_iv (O_TTY_INIT)
829		1072
830	const_iv (S_IFIFO)	1073	const_iv (S_IFIFO)
831	const_iv (S_IFCHR)	1074	const_iv (S_IFCHR)
832	const_iv (S_IFBLK)	1075	const_iv (S_IFBLK)
…		…
834	const_iv (S_IFREG)	1077	const_iv (S_IFREG)
835	const_iv (S_IFDIR)	1078	const_iv (S_IFDIR)
836	const_iv (S_IFWHT)	1079	const_iv (S_IFWHT)
837	const_iv (S_IFSOCK)	1080	const_iv (S_IFSOCK)
838	const_iv (S_IFMT)	1081	const_iv (S_IFMT)
839
840	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
841	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
842	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
843	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
844	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
845	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
846
847	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
848	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
849	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
850	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
851	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
852		1082
853	const_iv (ST_RDONLY)	1083	const_iv (ST_RDONLY)
854	const_iv (ST_NOSUID)	1084	const_iv (ST_NOSUID)
855	const_iv (ST_NODEV)	1085	const_iv (ST_NODEV)
856	const_iv (ST_NOEXEC)	1086	const_iv (ST_NOEXEC)
…		…
866	const_iv (PROT_NONE)	1096	const_iv (PROT_NONE)
867	const_iv (PROT_EXEC)	1097	const_iv (PROT_EXEC)
868	const_iv (PROT_READ)	1098	const_iv (PROT_READ)
869	const_iv (PROT_WRITE)	1099	const_iv (PROT_WRITE)
870		1100
871	/*const_iv (MAP_FIXED)*/
872	const_iv (MAP_PRIVATE)	1101	const_iv (MAP_PRIVATE)
873	const_iv (MAP_SHARED)	1102	const_iv (MAP_SHARED)
		1103	const_iv (MAP_FIXED)
874	const_iv (MAP_ANONYMOUS)	1104	const_iv (MAP_ANONYMOUS)
875		1105
876	/* linuxish */	1106	/* linuxish */
877	const_iv (MAP_HUGETLB)
878	const_iv (MAP_LOCKED)	1107	const_iv (MAP_LOCKED)
879	const_iv (MAP_NORESERVE)	1108	const_iv (MAP_NORESERVE)
880	const_iv (MAP_POPULATE)	1109	const_iv (MAP_POPULATE)
881	const_iv (MAP_NONBLOCK)	1110	const_iv (MAP_NONBLOCK)
		1111	const_iv (MAP_GROWSDOWN)
		1112	const_iv (MAP_32BIT)
		1113	const_iv (MAP_HUGETLB)
		1114	const_iv (MAP_STACK)
		1115
		1116	const_iv (MREMAP_MAYMOVE)
		1117	const_iv (MREMAP_FIXED)
		1118
		1119	const_iv (F_DUPFD_CLOEXEC)
		1120
		1121	const_iv (F_OFD_GETLK)
		1122	const_iv (F_OFD_SETLK)
		1123	const_iv (F_OFD_GETLKW)
		1124
		1125	const_iv (FIFREEZE)
		1126	const_iv (FITHAW)
		1127	const_iv (FITRIM)
		1128	const_iv (FICLONE)
		1129	const_iv (FICLONERANGE)
		1130	const_iv (FIDEDUPERANGE)
		1131
		1132	const_iv (FS_IOC_GETFLAGS)
		1133	const_iv (FS_IOC_SETFLAGS)
		1134	const_iv (FS_IOC_GETVERSION)
		1135	const_iv (FS_IOC_SETVERSION)
		1136	const_iv (FS_IOC_FIEMAP)
		1137	const_iv (FS_IOC_FSGETXATTR)
		1138	const_iv (FS_IOC_FSSETXATTR)
		1139	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1140	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1141	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1142
		1143	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1144
		1145	const_iv (FS_SECRM_FL)
		1146	const_iv (FS_UNRM_FL)
		1147	const_iv (FS_COMPR_FL)
		1148	const_iv (FS_SYNC_FL)
		1149	const_iv (FS_IMMUTABLE_FL)
		1150	const_iv (FS_APPEND_FL)
		1151	const_iv (FS_NODUMP_FL)
		1152	const_iv (FS_NOATIME_FL)
		1153	const_iv (FS_DIRTY_FL)
		1154	const_iv (FS_COMPRBLK_FL)
		1155	const_iv (FS_NOCOMP_FL)
		1156	const_iv (FS_ENCRYPT_FL)
		1157	const_iv (FS_BTREE_FL)
		1158	const_iv (FS_INDEX_FL)
		1159	const_iv (FS_JOURNAL_DATA_FL)
		1160	const_iv (FS_NOTAIL_FL)
		1161	const_iv (FS_DIRSYNC_FL)
		1162	const_iv (FS_TOPDIR_FL)
		1163	const_iv (FS_FL_USER_MODIFIABLE)
		1164
		1165	const_iv (FS_XFLAG_REALTIME)
		1166	const_iv (FS_XFLAG_PREALLOC)
		1167	const_iv (FS_XFLAG_IMMUTABLE)
		1168	const_iv (FS_XFLAG_APPEND)
		1169	const_iv (FS_XFLAG_SYNC)
		1170	const_iv (FS_XFLAG_NOATIME)
		1171	const_iv (FS_XFLAG_NODUMP)
		1172	const_iv (FS_XFLAG_RTINHERIT)
		1173	const_iv (FS_XFLAG_PROJINHERIT)
		1174	const_iv (FS_XFLAG_NOSYMLINKS)
		1175	const_iv (FS_XFLAG_EXTSIZE)
		1176	const_iv (FS_XFLAG_EXTSZINHERIT)
		1177	const_iv (FS_XFLAG_NODEFRAG)
		1178	const_iv (FS_XFLAG_FILESTREAM)
		1179	const_iv (FS_XFLAG_DAX)
		1180	const_iv (FS_XFLAG_HASATTR)
		1181
		1182	const_iv (FIEMAP_FLAG_SYNC)
		1183	const_iv (FIEMAP_FLAG_XATTR)
		1184	const_iv (FIEMAP_FLAGS_COMPAT)
		1185	const_iv (FIEMAP_EXTENT_LAST)
		1186	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1187	const_iv (FIEMAP_EXTENT_DELALLOC)
		1188	const_iv (FIEMAP_EXTENT_ENCODED)
		1189	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1190	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1191	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1192	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1193	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1194	const_iv (FIEMAP_EXTENT_MERGED)
		1195	const_iv (FIEMAP_EXTENT_SHARED)
		1196
		1197	const_iv (SPLICE_F_MOVE)
		1198	const_iv (SPLICE_F_NONBLOCK)
		1199	const_iv (SPLICE_F_MORE)
		1200	const_iv (SPLICE_F_GIFT)
		1201
		1202	const_iv (EFD_CLOEXEC)
		1203	const_iv (EFD_NONBLOCK)
		1204	const_iv (EFD_SEMAPHORE)
		1205
		1206	const_iv (CLOCK_REALTIME)
		1207	const_iv (CLOCK_MONOTONIC)
		1208	const_iv (CLOCK_BOOTTIME)
		1209	const_iv (CLOCK_REALTIME_ALARM)
		1210	const_iv (CLOCK_BOOTTIME_ALARM)
		1211
		1212	const_iv (TFD_NONBLOCK)
		1213	const_iv (TFD_CLOEXEC)
		1214
		1215	const_iv (TFD_TIMER_ABSTIME)
		1216	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1217
		1218	/* these are libeio constants, and are independent of gendef0 */
		1219	const_eio (SEEK_SET)
		1220	const_eio (SEEK_CUR)
		1221	const_eio (SEEK_END)
882		1222
883	const_eio (MCL_FUTURE)	1223	const_eio (MCL_FUTURE)
884	const_eio (MCL_CURRENT)	1224	const_eio (MCL_CURRENT)
885		1225
886	const_eio (MS_ASYNC)	1226	const_eio (MS_ASYNC)
…		…
890	const_eio (MT_MODIFY)	1230	const_eio (MT_MODIFY)
891		1231
892	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1232	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
893	const_eio (SYNC_FILE_RANGE_WRITE)	1233	const_eio (SYNC_FILE_RANGE_WRITE)
894	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1234	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1235
		1236	const_eio (FALLOC_FL_KEEP_SIZE)
		1237	const_eio (FALLOC_FL_PUNCH_HOLE)
		1238	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1239	const_eio (FALLOC_FL_ZERO_RANGE)
		1240	const_eio (FALLOC_FL_INSERT_RANGE)
		1241	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1242
		1243	const_eio (RENAME_NOREPLACE)
		1244	const_eio (RENAME_EXCHANGE)
		1245	const_eio (RENAME_WHITEOUT)
895		1246
896	const_eio (READDIR_DENTS)	1247	const_eio (READDIR_DENTS)
897	const_eio (READDIR_DIRS_FIRST)	1248	const_eio (READDIR_DIRS_FIRST)
898	const_eio (READDIR_STAT_ORDER)	1249	const_eio (READDIR_STAT_ORDER)
899	const_eio (READDIR_FOUND_UNKNOWN)	1250	const_eio (READDIR_FOUND_UNKNOWN)
…		…
910	};	1261	};
911		1262
912	aio_stash = gv_stashpv ("IO::AIO" , 1);	1263	aio_stash = gv_stashpv ("IO::AIO" , 1);
913	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1264	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
914	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1265	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1266	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
915		1267
916	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1268	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
917	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1269	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
918		1270
919	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1271	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
920		1272
921	create_respipe ();	1273	reinit ();
922
923	if (eio_init (want_poll, done_poll) < 0)
924	croak ("IO::AIO: unable to initialise eio library");
925
926	/* atfork child called in fifo order, so before eio's handler */
927	X_THREAD_ATFORK (0, 0, atfork_child);
928	}	1274	}
		1275
		1276	void
		1277	reinit ()
		1278	PROTOTYPE:
929		1279
930	void	1280	void
931	max_poll_reqs (unsigned int nreqs)	1281	max_poll_reqs (unsigned int nreqs)
932	PROTOTYPE: $	1282	PROTOTYPE: $
933	CODE:	1283	CODE:
…		…
968	PROTOTYPE: $	1318	PROTOTYPE: $
969	CODE:	1319	CODE:
970	max_outstanding = maxreqs;	1320	max_outstanding = maxreqs;
971		1321
972	void	1322	void
973	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1323	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
974	PPCODE:	1324	PPCODE:
975	{	1325	{
976	dREQ;	1326	dREQ;
977		1327
		1328	req->type = EIO_WD_OPEN;
		1329	req_set_path1 (req, pathname);
		1330
		1331	REQ_SEND;
		1332	}
		1333
		1334	void
		1335	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1336	PPCODE:
		1337	{
		1338	dREQ;
		1339
978	req->type = EIO_OPEN;	1340	req->type = EIO_OPEN;
979	req->sv1 = newSVsv (pathname);	1341	req_set_path1 (req, pathname);
980	req->ptr1 = SvPVbyte_nolen (req->sv1);
981	req->int1 = flags;	1342	req->int1 = flags;
982	req->int2 = mode;	1343	req->int2 = mode;
983		1344
984	REQ_SEND;	1345	REQ_SEND;
985	}	1346	}
986		1347
987	void	1348	void
988	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1349	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
989	ALIAS:	1350	ALIAS:
990	aio_fsync = EIO_FSYNC	1351	aio_fsync = EIO_FSYNC
991	aio_fdatasync = EIO_FDATASYNC	1352	aio_fdatasync = EIO_FDATASYNC
		1353	aio_syncfs = EIO_SYNCFS
992	PPCODE:	1354	PPCODE:
993	{	1355	{
994	int fd = s_fileno_croak (fh, 0);	1356	int fd = s_fileno_croak (fh, 0);
995	dREQ;	1357	dREQ;
996		1358
997	req->type = ix;	1359	req->type = ix;
998	req->sv1 = newSVsv (fh);	1360	req->sv1 = newSVsv (fh);
999	req->int1 = fd;	1361	req->int1 = fd;
1000		1362
1001	REQ_SEND (req);	1363	REQ_SEND;
1002	}	1364	}
1003		1365
1004	void	1366	void
1005	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1367	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1006	PPCODE:	1368	PPCODE:
1007	{	1369	{
1008	int fd = s_fileno_croak (fh, 0);	1370	int fd = s_fileno_croak (fh, 0);
1009	dREQ;	1371	dREQ;
1010		1372
1011	req->type = EIO_SYNC_FILE_RANGE;	1373	req->type = EIO_SYNC_FILE_RANGE;
1012	req->sv1 = newSVsv (fh);	1374	req->sv1 = newSVsv (fh);
1013	req->int1 = fd;	1375	req->int1 = fd;
1014	req->offs = offset;	1376	req->offs = offset;
1015	req->size = nbytes;	1377	req->size = nbytes;
1016	req->int2 = flags;	1378	req->int2 = flags;
1017		1379
1018	REQ_SEND (req);	1380	REQ_SEND;
1019	}	1381	}
1020		1382
1021	void	1383	void
1022	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1384	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1023	PPCODE:	1385	PPCODE:
1024	{	1386	{
1025	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
1026	int fd = s_fileno_croak (fh, 0);	1387	int fd = s_fileno_croak (fh, 0);
1027	dREQ;	1388	dREQ;
1028		1389
1029	if (close_pipe < 0)	1390	req->type = EIO_FALLOCATE;
		1391	req->sv1 = newSVsv (fh);
		1392	req->int1 = fd;
		1393	req->int2 = mode;
		1394	req->offs = offset;
		1395	req->size = len;
		1396
		1397	REQ_SEND;
		1398	}
		1399
		1400	void
		1401	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1402	PPCODE:
		1403	{
		1404	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1405	int fd = s_fileno_croak (fh, 0);
		1406	dREQ;
		1407
		1408	if (expect_false (close_fd < 0))
1030	{	1409	{
1031	int pipefd [2];	1410	int pipefd [2];
1032		1411
		1412	if (
		1413	#ifdef _WIN32
		1414	_pipe (pipefd, 1, _O_BINARY) < 0
		1415	#else
1033	if (pipe (pipefd) < 0	1416	pipe (pipefd) < 0
1034	|| close (pipefd [1]) < 0
1035	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1417	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1418	#endif
		1419	|| close (pipefd [1]) < 0
		1420	)
1036	abort (); /*D*/	1421	abort (); /*D*/
1037		1422
1038	close_pipe = pipefd [0];	1423	close_fd = pipefd [0];
1039	}	1424	}
1040		1425
1041	req->type = EIO_DUP2;	1426	req->type = EIO_DUP2;
1042	req->int1 = close_pipe;	1427	req->int1 = close_fd;
1043	req->sv2 = newSVsv (fh);	1428	req->sv2 = newSVsv (fh);
1044	req->int2 = fd;	1429	req->int2 = fd;
1045		1430
1046	REQ_SEND (req);	1431	REQ_SEND;
1047	}	1432	}
1048		1433
1049	void	1434	void
		1435	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1436	PPCODE:
		1437	{
		1438	int fd = s_fileno_croak (fh, 0);
		1439	dREQ;
		1440
		1441	req->type = EIO_SEEK;
		1442	req->sv1 = newSVsv (fh);
		1443	req->int1 = fd;
		1444	req->offs = SvVAL64 (offset);
		1445	req->int2 = whence;
		1446
		1447	REQ_SEND;
		1448	}
		1449
		1450	void
1050	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1451	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1051	ALIAS:	1452	ALIAS:
1052	aio_read = EIO_READ	1453	aio_read = EIO_READ
1053	aio_write = EIO_WRITE	1454	aio_write = EIO_WRITE
1054	PPCODE:	1455	PPCODE:
1055	{	1456	{
…		…
1071	len = svlen - dataoffset;	1472	len = svlen - dataoffset;
1072	}	1473	}
1073	else	1474	else
1074	{	1475	{
1075	/* read: check type and grow scalar as necessary */	1476	/* read: check type and grow scalar as necessary */
1076	SvUPGRADE (data, SVt_PV);	1477	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1077	svptr = SvGROW (data, len + dataoffset + 1);	1478	svptr = sv_grow (data, len + dataoffset + 1);
		1479	else if (SvCUR (data) < len + dataoffset)
		1480	croak ("length + dataoffset outside of scalar, and cannot grow");
1078	}	1481	}
1079		1482
1080	{	1483	{
1081	dREQ;	1484	dREQ;
1082		1485
…		…
1098	REQ_SEND;	1501	REQ_SEND;
1099	}	1502	}
1100	}	1503	}
1101		1504
1102	void	1505	void
		1506	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1507	ALIAS:
		1508	aio_ioctl = EIO_IOCTL
		1509	aio_fcntl = EIO_FCNTL
		1510	PPCODE:
		1511	{
		1512	int fd = s_fileno_croak (fh, 0);
		1513	char *svptr;
		1514
		1515	if (SvPOK (arg) || !SvNIOK (arg))
		1516	{
		1517	STRLEN svlen;
		1518	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1519	#ifdef IOCPARM_LEN
		1520	STRLEN need = IOCPARM_LEN (request);
		1521	#else
		1522	STRLEN need = 256;
		1523	#endif
		1524
		1525	if (svlen < need)
		1526	svptr = SvGROW (arg, need);
		1527	}
		1528	else
		1529	svptr = (char *)SvIV (arg);
		1530
		1531	{
		1532	dREQ;
		1533
		1534	req->type = ix;
		1535	req->sv1 = newSVsv (fh);
		1536	req->int1 = fd;
		1537	req->int2 = (long)request;
		1538	req->sv2 = SvREFCNT_inc (arg);
		1539	req->ptr2 = svptr;
		1540
		1541	REQ_SEND;
		1542	}
		1543	}
		1544
		1545	void
1103	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1546	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1104	ALIAS:	1547	ALIAS:
1105	aio_readlink = EIO_READLINK	1548	aio_readlink = EIO_READLINK
1106	aio_realpath = EIO_REALPATH	1549	aio_realpath = EIO_REALPATH
1107	PPCODE:	1550	PPCODE:
1108	{	1551	{
1109	SV *data;
1110	dREQ;	1552	dREQ;
1111		1553
1112	req->type = ix;	1554	req->type = ix;
1113	req->sv1 = newSVsv (path);	1555	req_set_path1 (req, pathname);
1114	req->ptr1 = SvPVbyte_nolen (req->sv1);
1115		1556
1116	REQ_SEND;	1557	REQ_SEND;
1117	}	1558	}
1118		1559
1119	void	1560	void
1120	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1561	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1121	PPCODE:	1562	PPCODE:
1122	{	1563	{
1123	int ifd = s_fileno_croak (in_fh , 0);	1564	int ifd = s_fileno_croak (in_fh , 0);
1124	int ofd = s_fileno_croak (out_fh, 1);	1565	int ofd = s_fileno_croak (out_fh, 1);
1125	dREQ;	1566	dREQ;
1126		1567
1127	req->type = EIO_SENDFILE;	1568	req->type = EIO_SENDFILE;
1128	req->sv1 = newSVsv (out_fh);	1569	req->sv1 = newSVsv (out_fh);
1129	req->int1 = ofd;	1570	req->int1 = ofd;
…		…
1134		1575
1135	REQ_SEND;	1576	REQ_SEND;
1136	}	1577	}
1137		1578
1138	void	1579	void
1139	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1580	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1140	PPCODE:	1581	PPCODE:
1141	{	1582	{
1142	int fd = s_fileno_croak (fh, 0);	1583	int fd = s_fileno_croak (fh, 0);
1143	dREQ;	1584	dREQ;
1144		1585
1145	req->type = EIO_READAHEAD;	1586	req->type = EIO_READAHEAD;
1146	req->sv1 = newSVsv (fh);	1587	req->sv1 = newSVsv (fh);
1147	req->int1 = fd;	1588	req->int1 = fd;
…		…
1150		1591
1151	REQ_SEND;	1592	REQ_SEND;
1152	}	1593	}
1153		1594
1154	void	1595	void
1155	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1596	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1156	ALIAS:	1597	ALIAS:
1157	aio_stat = EIO_STAT	1598	aio_stat = EIO_STAT
1158	aio_lstat = EIO_LSTAT	1599	aio_lstat = EIO_LSTAT
1159	aio_statvfs = EIO_STATVFS	1600	aio_statvfs = EIO_STATVFS
1160	PPCODE:	1601	PPCODE:
1161	{	1602	{
1162	dREQ;	1603	dREQ;
1163		1604
1164	req->sv1 = newSVsv (fh_or_path);	1605	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1165
1166	if (SvPOK (req->sv1))
1167	{
1168	req->type = ix;
1169	req->ptr1 = SvPVbyte_nolen (req->sv1);
1170	}
1171	else
1172	{
1173	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1174	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1175	}
1176		1606
1177	REQ_SEND;	1607	REQ_SEND;
1178	}	1608	}
1179		1609
1180	UV	1610	UV
1181	major (UV dev)	1611	major (UV dev)
1182	ALIAS:	1612	ALIAS:
1183	minor = 1	1613	minor = 1
1184	CODE:	1614	CODE:
1185	RETVAL = ix ? major (dev) : minor (dev);	1615	RETVAL = ix ? minor (dev) : major (dev);
1186	OUTPUT:	1616	OUTPUT:
1187	RETVAL	1617	RETVAL
1188		1618
1189	UV	1619	UV
1190	makedev (UV maj, UV min)	1620	makedev (UV maj, UV min)
…		…
1192	RETVAL = makedev (maj, min);	1622	RETVAL = makedev (maj, min);
1193	OUTPUT:	1623	OUTPUT:
1194	RETVAL	1624	RETVAL
1195		1625
1196	void	1626	void
1197	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1627	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1198	PPCODE:	1628	PPCODE:
1199	{	1629	{
1200	dREQ;	1630	dREQ;
1201		1631
1202	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1632	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1203	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1633	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1204	req->sv1 = newSVsv (fh_or_path);	1634	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1205
1206	if (SvPOK (req->sv1))
1207	{
1208	req->type = EIO_UTIME;
1209	req->ptr1 = SvPVbyte_nolen (req->sv1);
1210	}
1211	else
1212	{
1213	req->type = EIO_FUTIME;
1214	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1215	}
1216		1635
1217	REQ_SEND;	1636	REQ_SEND;
1218	}	1637	}
1219		1638
1220	void	1639	void
1221	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1640	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1222	PPCODE:	1641	PPCODE:
1223	{	1642	{
1224	dREQ;	1643	dREQ;
1225		1644
1226	req->sv1 = newSVsv (fh_or_path);
1227	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1645	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1228		1646	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1229	if (SvPOK (req->sv1))
1230	{
1231	req->type = EIO_TRUNCATE;
1232	req->ptr1 = SvPVbyte_nolen (req->sv1);
1233	}
1234	else
1235	{
1236	req->type = EIO_FTRUNCATE;
1237	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1238	}
1239		1647
1240	REQ_SEND;	1648	REQ_SEND;
1241	}	1649	}
1242		1650
1243	void	1651	void
1244	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1652	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1245	ALIAS:
1246	aio_chmod = EIO_CHMOD
1247	aio_mkdir = EIO_MKDIR
1248	PPCODE:	1653	PPCODE:
1249	{	1654	{
1250	dREQ;	1655	dREQ;
1251		1656
1252	req->int2 = mode;	1657	req->int2 = mode;
1253	req->sv1 = newSVsv (fh_or_path);	1658	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1254
1255	if (SvPOK (req->sv1))
1256	{
1257	req->type = ix;
1258	req->ptr1 = SvPVbyte_nolen (req->sv1);
1259	}
1260	else
1261	{
1262	req->type = EIO_FCHMOD;
1263	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1264	}
1265		1659
1266	REQ_SEND;	1660	REQ_SEND;
1267	}	1661	}
1268		1662
1269	void	1663	void
1270	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1664	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1271	PPCODE:	1665	PPCODE:
1272	{	1666	{
1273	dREQ;	1667	dREQ;
1274		1668
1275	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1669	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1276	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1670	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1277	req->sv1 = newSVsv (fh_or_path);	1671	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1278
1279	if (SvPOK (req->sv1))
1280	{
1281	req->type = EIO_CHOWN;
1282	req->ptr1 = SvPVbyte_nolen (req->sv1);
1283	}
1284	else
1285	{
1286	req->type = EIO_FCHOWN;
1287	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1288	}
1289		1672
1290	REQ_SEND;	1673	REQ_SEND;
1291	}	1674	}
1292		1675
1293	void	1676	void
1294	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1677	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1295	PPCODE:	1678	PPCODE:
1296	{	1679	{
1297	dREQ;	1680	dREQ;
1298		1681
1299	req->type = EIO_READDIR;	1682	req->type = EIO_READDIR;
1300	req->sv1 = newSVsv (pathname);
1301	req->ptr1 = SvPVbyte_nolen (req->sv1);
1302	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1683	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1303		1684
1304	if (flags & EIO_READDIR_DENTS)	1685	if (flags & EIO_READDIR_DENTS)
1305	req->int1 |= EIO_READDIR_CUSTOM2;	1686	req->int1 |= EIO_READDIR_CUSTOM2;
1306		1687
		1688	req_set_path1 (req, pathname);
		1689
1307	REQ_SEND;	1690	REQ_SEND;
1308	}	1691	}
1309		1692
1310	void	1693	void
		1694	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1695	PPCODE:
		1696	{
		1697	dREQ;
		1698
		1699	req->type = EIO_MKDIR;
		1700	req->int2 = mode;
		1701	req_set_path1 (req, pathname);
		1702
		1703	REQ_SEND;
		1704	}
		1705
		1706	void
1311	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1707	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1312	ALIAS:	1708	ALIAS:
1313	aio_unlink = EIO_UNLINK	1709	aio_unlink = EIO_UNLINK
1314	aio_rmdir = EIO_RMDIR	1710	aio_rmdir = EIO_RMDIR
1315	aio_readdir = EIO_READDIR	1711	aio_readdir = EIO_READDIR
1316	PPCODE:	1712	PPCODE:
1317	{	1713	{
1318	dREQ;	1714	dREQ;
1319		1715
1320	req->type = ix;	1716	req->type = ix;
1321	req->sv1 = newSVsv (pathname);	1717	req_set_path1 (req, pathname);
1322	req->ptr1 = SvPVbyte_nolen (req->sv1);
1323		1718
1324	REQ_SEND;	1719	REQ_SEND;
1325	}	1720	}
1326		1721
1327	void	1722	void
1328	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1723	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1329	ALIAS:	1724	ALIAS:
1330	aio_link = EIO_LINK	1725	aio_link = EIO_LINK
1331	aio_symlink = EIO_SYMLINK	1726	aio_symlink = EIO_SYMLINK
1332	aio_rename = EIO_RENAME	1727	aio_rename = EIO_RENAME
1333	PPCODE:	1728	PPCODE:
1334	{	1729	{
		1730	eio_wd wd2 = 0;
1335	dREQ;	1731	dREQ;
1336		1732
1337	req->type = ix;	1733	req->type = ix;
1338	req->sv1 = newSVsv (oldpath);	1734	req_set_path1 (req, oldpath);
1339	req->ptr1 = SvPVbyte_nolen (req->sv1);	1735	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1340	req->sv2 = newSVsv (newpath);	1736	req->int3 = (long)wd2;
1341	req->ptr2 = SvPVbyte_nolen (req->sv2);
1342		1737
1343	REQ_SEND;	1738	REQ_SEND;
1344	}	1739	}
1345		1740
1346	void	1741	void
		1742	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1743	PPCODE:
		1744	{
		1745	eio_wd wd2 = 0;
		1746	dREQ;
		1747
		1748	req->type = EIO_RENAME;
		1749	req_set_path1 (req, oldpath);
		1750	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1751	req->int2 = flags;
		1752	req->int3 = (long)wd2;
		1753
		1754	REQ_SEND;
		1755	}
		1756
		1757	void
1347	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1758	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1348	PPCODE:	1759	PPCODE:
1349	{	1760	{
1350	dREQ;	1761	dREQ;
1351		1762
1352	req->type = EIO_MKNOD;	1763	req->type = EIO_MKNOD;
1353	req->sv1 = newSVsv (pathname);
1354	req->ptr1 = SvPVbyte_nolen (req->sv1);
1355	req->int2 = (mode_t)mode;	1764	req->int2 = (mode_t)mode;
1356	req->offs = dev;	1765	req->offs = dev;
		1766	req_set_path1 (req, pathname);
1357		1767
1358	REQ_SEND;	1768	REQ_SEND;
1359	}	1769	}
1360		1770
1361	void	1771	void
1362	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1772	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1363	ALIAS:	1773	ALIAS:
1364	aio_mtouch = EIO_MTOUCH	1774	aio_mtouch = EIO_MTOUCH
1365	aio_msync = EIO_MSYNC	1775	aio_msync = EIO_MSYNC
1366	PPCODE:	1776	PPCODE:
1367	{	1777	{
1368	STRLEN svlen;	1778	STRLEN svlen;
1369	char *svptr = SvPVbyte (data, svlen);	1779	char *svptr = SvPVbyte (data, svlen);
1370	UV len = SvUV (length);	1780	UV len = SvUV (length);
		1781
		1782	if (flags < 0)
		1783	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1371		1784
1372	if (offset < 0)	1785	if (offset < 0)
1373	offset += svlen;	1786	offset += svlen;
1374		1787
1375	if (offset < 0 || offset > svlen)	1788	if (offset < 0 || offset > svlen)
…		…
1390	REQ_SEND;	1803	REQ_SEND;
1391	}	1804	}
1392	}	1805	}
1393		1806
1394	void	1807	void
1395	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1808	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1396	PPCODE:	1809	PPCODE:
1397	{	1810	{
1398	STRLEN svlen;	1811	STRLEN svlen;
1399	char *svptr = SvPVbyte (data, svlen);	1812	char *svptr = SvPVbyte (data, svlen);
1400	UV len = SvUV (length);	1813	UV len = SvUV (length);
…		…
1419	REQ_SEND;	1832	REQ_SEND;
1420	}	1833	}
1421	}	1834	}
1422		1835
1423	void	1836	void
1424	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1837	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1425	PPCODE:	1838	PPCODE:
1426	{	1839	{
1427	dREQ;	1840	dREQ;
1428		1841
1429	req->type = EIO_MLOCKALL;	1842	req->type = EIO_MLOCKALL;
…		…
1431		1844
1432	REQ_SEND;	1845	REQ_SEND;
1433	}	1846	}
1434		1847
1435	void	1848	void
		1849	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1850	PPCODE:
		1851	{
		1852	int fd = s_fileno_croak (fh, 0);
		1853	dREQ;
		1854
		1855	req->type = EIO_CUSTOM;
		1856	req->sv1 = newSVsv (fh);
		1857	req->int1 = fd;
		1858
		1859	req->feed = fiemap;
		1860	#if HAVE_FIEMAP
		1861	/* keep our fingers crossed that the next two types are 64 bit */
		1862	req->offs = start;
		1863	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1864	req->int2 = flags;
		1865	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1866	#endif
		1867
		1868	REQ_SEND;
		1869	}
		1870
		1871	void
		1872	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1873	PPCODE:
		1874	{
		1875	char *svptr = 0;
		1876
		1877	sv_clear_foreign (data);
		1878
		1879	if (length) /* known length, directly read into scalar */
		1880	{
		1881	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1882	svptr = sv_grow (data, length + 1);
		1883	else if (SvCUR (data) < length)
		1884	croak ("length outside of scalar, and cannot grow");
		1885	else
		1886	svptr = SvPVbyte_nolen (data);
		1887	}
		1888
		1889	{
		1890	dREQ;
		1891
		1892	req->type = EIO_SLURP;
		1893	req_set_path1 (req, pathname);
		1894	req->offs = offset;
		1895	req->size = length;
		1896	req->sv2 = SvREFCNT_inc (data);
		1897	req->ptr2 = svptr;
		1898
		1899	if (!SvREADONLY (data))
		1900	{
		1901	SvREADONLY_on (data);
		1902	req->flags |= FLAG_SV2_RO_OFF;
		1903	}
		1904
		1905	REQ_SEND;
		1906	}
		1907	}
		1908
		1909	void
1436	aio_busy (double delay, SV *callback=&PL_sv_undef)	1910	aio_busy (double delay, SV *callback = &PL_sv_undef)
1437	PPCODE:	1911	PPCODE:
1438	{	1912	{
1439	dREQ;	1913	dREQ;
1440		1914
1441	req->type = EIO_BUSY;	1915	req->type = EIO_BUSY;
…		…
1443		1917
1444	REQ_SEND;	1918	REQ_SEND;
1445	}	1919	}
1446		1920
1447	void	1921	void
1448	aio_group (SV *callback=&PL_sv_undef)	1922	aio_group (SV *callback = &PL_sv_undef)
1449	PPCODE:	1923	PPCODE:
1450	{	1924	{
1451	dREQ;	1925	dREQ;
1452		1926
1453	req->type = EIO_GROUP;	1927	req->type = EIO_GROUP;
1454		1928
		1929	PUTBACK;
1455	req_submit (req);	1930	req_submit (req);
		1931	SPAGAIN;
		1932
1456	XPUSHs (req_sv (req, aio_grp_stash));	1933	XPUSHs (req_sv (req, aio_grp_stash));
1457	}	1934	}
1458		1935
1459	void	1936	void
1460	aio_nop (SV *callback=&PL_sv_undef)	1937	aio_nop (SV *callback = &PL_sv_undef)
1461	ALIAS:	1938	ALIAS:
1462	aio_nop = EIO_NOP	1939	aio_nop = EIO_NOP
1463	aio_sync = EIO_SYNC	1940	aio_sync = EIO_SYNC
1464	PPCODE:	1941	PPCODE:
1465	{	1942	{
…		…
1469		1946
1470	REQ_SEND;	1947	REQ_SEND;
1471	}	1948	}
1472		1949
1473	int	1950	int
1474	aioreq_pri (int pri = 0)	1951	aioreq_pri (int pri = NO_INIT)
1475	CODE:	1952	CODE:
1476	RETVAL = next_pri;	1953	RETVAL = next_pri;
1477	if (items > 0)	1954	if (items > 0)
1478	{	1955	{
1479	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1956	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1561	CODE:	2038	CODE:
1562	RETVAL = posix_fadvise (fh, offset, length, advice);	2039	RETVAL = posix_fadvise (fh, offset, length, advice);
1563	OUTPUT:	2040	OUTPUT:
1564	RETVAL	2041	RETVAL
1565		2042
1566	ssize_t	2043	IV
1567	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	2044	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1568	CODE:	2045	CODE:
1569	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2046	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1570	OUTPUT:	2047	OUTPUT:
1571	RETVAL	2048	RETVAL
1572		2049
1573	void	2050	void
1574	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2051	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1575	PPCODE:	2052	PPCODE:
1576	sv_unmagic (scalar, MMAP_MAGIC);	2053	sv_clear_foreign (scalar);
1577	{	2054	{
1578	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2055	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1579	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2056	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1580	if (addr == (void *)-1)	2057	if (addr == (void *)-1)
1581	XSRETURN_NO;	2058	XSRETURN_NO;
1582		2059
1583	sv_force_normal (scalar);	2060	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1584
1585	/* we store the length in mg_obj, as namlen is I32 :/ */
1586	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1587	->mg_obj = (SV *)length;
1588
1589	SvUPGRADE (scalar, SVt_PV); /* nop... */
1590		2061
1591	if (!(prot & PROT_WRITE))	2062	if (!(prot & PROT_WRITE))
1592	SvREADONLY_on (scalar);	2063	SvREADONLY_on (scalar);
1593		2064
1594	if (SvLEN (scalar))
1595	Safefree (SvPVX (scalar));
1596
1597	SvPVX (scalar) = (char *)addr;
1598	SvCUR_set (scalar, length);
1599	SvLEN_set (scalar, 0);
1600	SvPOK_only (scalar);
1601
1602	XSRETURN_YES;	2065	XSRETURN_YES;
1603	}	2066	}
1604		2067
1605	void	2068	void
1606	munmap (SV *scalar)	2069	munmap (SV *scalar)
1607	CODE:	2070	CODE:
1608	sv_unmagic (scalar, MMAP_MAGIC);	2071	sv_clear_foreign (scalar);
		2072
		2073	SV *
		2074	mremap (SV *scalar, STRLEN new_length, int flags = 0, IV new_address = 0)
		2075	CODE:
		2076	{
		2077	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2078	void *new;
		2079
		2080	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2081	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2082
		2083	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2084
		2085	RETVAL = &PL_sv_no;
		2086
		2087	if (new != (void *)-1)
		2088	{
		2089	RETVAL = new == (void *)mg->mg_ptr
		2090	? newSVpvn ("0 but true", 10)
		2091	: &PL_sv_yes;
		2092
		2093	mg->mg_ptr = (char *)new;
		2094	mg->mg_obj = (SV *)new_length;
		2095
		2096	SvPVX (scalar) = mg->mg_ptr;
		2097	SvCUR_set (scalar, new_length);
		2098	}
		2099	}
		2100	OUTPUT:
		2101	RETVAL
1609		2102
1610	int	2103	int
1611	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2104	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1612	ALIAS:	2105	ALIAS:
1613	mprotect = 1	2106	mprotect = 1
1614	CODE:	2107	CODE:
1615	{	2108	{
1616	STRLEN svlen;	2109	STRLEN svlen;
1617	void *addr = SvPVbyte (scalar, svlen);	2110	void *addr = SvPVbyte (scalar, svlen);
1618	size_t len = SvUV (length);	2111	STRLEN len = SvUV (length);
1619		2112
1620	if (offset < 0)	2113	if (offset < 0)
1621	offset += svlen;	2114	offset += svlen;
1622		2115
1623	if (offset < 0 || offset > svlen)	2116	if (offset < 0 || offset > svlen)
…		…
1637	}	2130	}
1638	OUTPUT:	2131	OUTPUT:
1639	RETVAL	2132	RETVAL
1640		2133
1641	int	2134	int
1642	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2135	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1643	CODE:	2136	CODE:
1644	{	2137	{
1645	STRLEN svlen;	2138	STRLEN svlen;
1646	void *addr = SvPVbyte (scalar, svlen);	2139	void *addr = SvPVbyte (scalar, svlen);
1647	size_t len = SvUV (length);	2140	size_t len = SvUV (length);
1648		2141
1649	if (offset < 0)	2142	if (offset < 0)
1650	offset += svlen;	2143	offset += svlen;
1651		2144
…		…
1658	addr = (void *)(((intptr_t)addr) + offset);	2151	addr = (void *)(((intptr_t)addr) + offset);
1659	eio_page_align (&addr, &len);	2152	eio_page_align (&addr, &len);
1660	#if _POSIX_MEMLOCK_RANGE	2153	#if _POSIX_MEMLOCK_RANGE
1661	RETVAL = munlock (addr, len);	2154	RETVAL = munlock (addr, len);
1662	#else	2155	#else
1663	RETVAL = ((errno = ENOSYS), -1);	2156	RETVAL = EIO_ENOSYS ();
1664	#endif	2157	#endif
1665	}	2158	}
1666	OUTPUT:	2159	OUTPUT:
1667	RETVAL	2160	RETVAL
1668		2161
…		…
1670	munlockall ()	2163	munlockall ()
1671	CODE:	2164	CODE:
1672	#if _POSIX_MEMLOCK	2165	#if _POSIX_MEMLOCK
1673	munlockall ();	2166	munlockall ();
1674	#else	2167	#else
1675	RETVAL = -1;	2168	RETVAL = EIO_ENOSYS ();
1676	errno = ENOSYS;
1677	#endif	2169	#endif
1678	OUTPUT:	2170	OUTPUT:
1679	RETVAL	2171	RETVAL
		2172
		2173	int
		2174	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2175	CODE:
		2176	{
		2177	#if HAVE_LINUX_SPLICE
		2178	loff_t off_in_, off_out_;
		2179	RETVAL = splice (
		2180	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2181	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2182	length, flags
		2183	);
		2184	#else
		2185	RETVAL = EIO_ENOSYS ();
		2186	#endif
		2187	}
		2188	OUTPUT:
		2189	RETVAL
		2190
		2191	int
		2192	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2193	CODE:
		2194	#if HAVE_LINUX_SPLICE
		2195	RETVAL = tee (rfh, wfh, length, flags);
		2196	#else
		2197	RETVAL = EIO_ENOSYS ();
		2198	#endif
		2199	OUTPUT:
		2200	RETVAL
		2201
		2202	int
		2203	pipesize (aio_rfd rfh, int new_size = -1)
		2204	PROTOTYPE: $;$
		2205	CODE:
		2206	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2207	if (new_size >= 0)
		2208	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2209	else
		2210	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2211	#else
		2212	errno = ENOSYS;
		2213	RETVAL = -1;
		2214	#endif
		2215	OUTPUT:
		2216	RETVAL
		2217
		2218	void
		2219	pipe2 (int flags = 0)
		2220	PROTOTYPE: ;$
		2221	PPCODE:
		2222	{
		2223	int fd[2];
		2224	int res;
		2225
		2226	if (flags)
		2227	#if HAVE_PIPE2
		2228	res = pipe2 (fd, flags);
		2229	#else
		2230	res = (errno = ENOSYS, -1);
		2231	#endif
		2232	else
		2233	res = pipe (fd);
		2234
		2235	if (!res)
		2236	{
		2237	EXTEND (SP, 2);
		2238	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2239	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2240	}
		2241	}
		2242
		2243	void
		2244	eventfd (unsigned int initval = 0, int flags = 0)
		2245	PPCODE:
		2246	{
		2247	int fd;
		2248	#if HAVE_EVENTFD
		2249	fd = eventfd (initval, flags);
		2250	#else
		2251	fd = (errno = ENOSYS, -1);
		2252	#endif
		2253
		2254	XPUSHs (newmortalFH (fd, O_RDWR));
		2255	}
		2256
		2257	void
		2258	timerfd_create (int clockid, int flags = 0)
		2259	PPCODE:
		2260	{
		2261	int fd;
		2262	#if HAVE_TIMERFD
		2263	fd = timerfd_create (clockid, flags);
		2264	#else
		2265	fd = (errno = ENOSYS, -1);
		2266	#endif
		2267
		2268	XPUSHs (newmortalFH (fd, O_RDWR));
		2269	}
		2270
		2271	void
		2272	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2273	PPCODE:
		2274	{
		2275	int fd = s_fileno_croak (fh, 0);
		2276	#if HAVE_TIMERFD
		2277	int res;
		2278	struct itimerspec its, ots;
		2279
		2280	ts_set (&its.it_interval, interval);
		2281	ts_set (&its.it_value , value);
		2282	res = timerfd_settime (fd, flags, &its, &ots);
		2283
		2284	if (!res)
		2285	{
		2286	EXTEND (SP, 2);
		2287	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2288	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2289	}
		2290	#else
		2291	errno = ENOSYS;
		2292	#endif
		2293	}
		2294
		2295	void
		2296	timerfd_gettime (SV *fh)
		2297	PPCODE:
		2298	{
		2299	int fd = s_fileno_croak (fh, 0);
		2300	#if HAVE_TIMERFD
		2301	int res;
		2302	struct itimerspec ots;
		2303	res = timerfd_gettime (fd, &ots);
		2304
		2305	if (!res)
		2306	{
		2307	EXTEND (SP, 2);
		2308	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2309	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2310	}
		2311	#else
		2312	errno = ENOSYS;
		2313	#endif
		2314	}
		2315
		2316	UV
		2317	get_fdlimit ()
		2318	CODE:
		2319	#if HAVE_RLIMITS
		2320	struct rlimit rl;
		2321	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2322	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2323	#endif
		2324	XSRETURN_UNDEF;
		2325	OUTPUT:
		2326	RETVAL
		2327
		2328	void
		2329	min_fdlimit (UV limit = 0x7fffffffU)
		2330	CODE:
		2331	{
		2332	#if HAVE_RLIMITS
		2333	struct rlimit rl;
		2334	rlim_t orig_rlim_max;
		2335	UV bit;
		2336
		2337	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2338	goto fail;
		2339
		2340	if (rl.rlim_cur == RLIM_INFINITY)
		2341	XSRETURN_YES;
		2342
		2343	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2344
		2345	if (rl.rlim_cur < limit)
		2346	{
		2347	rl.rlim_cur = limit;
		2348
		2349	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2350	rl.rlim_max = rl.rlim_cur;
		2351	}
		2352
		2353	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2354	XSRETURN_YES;
		2355
		2356	if (errno == EPERM)
		2357	{
		2358	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2359	/* our limit overflows a system-wide limit */
		2360	/* try an adaptive algorithm, but do not lower the hardlimit */
		2361	rl.rlim_max = 0;
		2362	for (bit = 0x40000000U; bit; bit >>= 1)
		2363	{
		2364	rl.rlim_max |= bit;
		2365	rl.rlim_cur = rl.rlim_max;
		2366
		2367	/* nevr decrease the hard limit */
		2368	if (rl.rlim_max < orig_rlim_max)
		2369	break;
		2370
		2371	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2372	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2373	}
		2374
		2375	/* now, raise the soft limit to the max permitted */
		2376	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2377	{
		2378	rl.rlim_cur = rl.rlim_max;
		2379	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2380	errno = EPERM;
		2381	}
		2382	}
		2383	#endif
		2384	fail:
		2385	XSRETURN_UNDEF;
		2386	}
1680		2387
1681	void _on_next_submit (SV *cb)	2388	void _on_next_submit (SV *cb)
1682	CODE:	2389	CODE:
1683	SvREFCNT_dec (on_next_submit);	2390	SvREFCNT_dec (on_next_submit);
1684	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2391	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1685		2392
1686	PROTOTYPES: DISABLE	2393	PROTOTYPES: DISABLE
1687		2394
		2395	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2396
		2397	BOOT:
		2398	{
		2399	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2400	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2401	}
		2402
		2403	void
		2404	DESTROY (SV *self)
		2405	CODE:
		2406	{
		2407	aio_wd wd = SvAIO_WD (self);
		2408	#if HAVE_AT
		2409	{
		2410	SV *callback = &PL_sv_undef;
		2411	dREQ; /* clobbers next_pri :/ */
		2412	next_pri = req->pri; /* restore next_pri */
		2413	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2414	req->type = EIO_WD_CLOSE;
		2415	req->wd = wd;
		2416	REQ_SEND;
		2417	}
		2418	#else
		2419	eio_wd_close_sync (wd);
		2420	#endif
		2421	}
		2422
1688	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2423	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1689		2424
1690	void	2425	void
1691	cancel (aio_req_ornot req)	2426	cancel (aio_req_ornot req)
1692	CODE:	2427	CODE:
1693	eio_cancel (req);	2428	eio_cancel (req);
1694		2429
1695	void	2430	void
1696	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2431	cb (aio_req_ornot req, SV *callback = NO_INIT)
1697	PPCODE:	2432	PPCODE:
1698	{	2433	{
1699	if (GIMME_V != G_VOID)	2434	if (GIMME_V != G_VOID)
1700	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2435	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1701		2436
1702	if (items > 1)	2437	if (items > 1)
1703	{	2438	{
1704	SV *cb_cv =get_cb (callback);	2439	SV *cb_cv = get_cb (callback);
1705		2440
1706	SvREFCNT_dec (req->callback);	2441	SvREFCNT_dec (req->callback);
1707	req->callback = SvREFCNT_inc (cb_cv);	2442	req->callback = SvREFCNT_inc (cb_cv);
1708	}	2443	}
1709	}	2444	}
…		…
1766	limit (aio_req grp, int limit)	2501	limit (aio_req grp, int limit)
1767	CODE:	2502	CODE:
1768	eio_grp_limit (grp, limit);	2503	eio_grp_limit (grp, limit);
1769		2504
1770	void	2505	void
1771	feed (aio_req grp, SV *callback=&PL_sv_undef)	2506	feed (aio_req grp, SV *callback = &PL_sv_undef)
1772	CODE:	2507	CODE:
1773	{	2508	{
1774	SvREFCNT_dec (grp->sv2);	2509	SvREFCNT_dec (grp->sv2);
1775	grp->sv2 = newSVsv (callback);	2510	grp->sv2 = newSVsv (callback);
1776	grp->feed = aio_grp_feed;	2511	grp->feed = aio_grp_feed;

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