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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 1.260 by root, Tue Jul 24 04:58:59 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
292	# define MAP_HUGETLB 0
293	#endif
294	#ifndef MAP_LOCKED
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) (errno = ENOSYS, (void *)-1)
		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	#if !MREMAP_MAYMOVE
		194	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		195	#endif
		196
		197	#define FOREIGN_MAGIC PERL_MAGIC_ext
		198
		199	static int ecb_cold
		200	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		201	{
		202	int old_errno = errno;
		203	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		204	errno = old_errno;
		205
		206	mg->mg_obj = 0; /* just in case */
		207
		208	SvREADONLY_off (sv);
		209
		210	if (SvPVX (sv) != mg->mg_ptr)
		211	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		212
		213	SvCUR_set (sv, 0);
		214	SvPVX (sv) = 0;
		215	SvOK_off (sv);
		216
		217	return 0;
		218	}
		219
		220	static MGVTBL mmap_vtbl = {
		221	0, 0, 0, 0, mmap_free
		222	};
		223
		224	static int ecb_cold
		225	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		226	{
		227	free (mg->mg_ptr);
		228	mg->mg_obj = 0; /* just in case */
		229
		230	SvREADONLY_off (sv);
		231
		232	if (SvPVX (sv) != mg->mg_ptr)
		233	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		234
		235	SvCUR_set (sv, 0);
		236	SvPVX (sv) = 0;
		237	SvOK_off (sv);
		238
		239	return 0;
		240	}
		241
		242	static MGVTBL sysfree_vtbl = {
		243	0, 0, 0, 0, sysfree_free
		244	};
		245
		246	/*****************************************************************************/
		247
		248	/* helper: set scalar to foreign ptr with custom free */
		249	static void
		250	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		251	{
		252	sv_force_normal (sv);
		253
		254	/* we store the length in mg_obj, as namlen is I32 :/ */
		255	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		256	->mg_obj = (SV *)length;
		257
		258	SvUPGRADE (sv, SVt_PV); /* nop... */
		259
		260	if (SvLEN (sv))
		261	Safefree (SvPVX (sv));
		262
		263	SvPVX (sv) = (char *)addr;
		264	SvCUR_set (sv, length);
		265	SvLEN_set (sv, 0);
		266	SvPOK_only (sv);
		267	}
		268
		269	static void
		270	sv_clear_foreign (SV *sv)
		271	{
		272	/* todo: iterate over magic and only free ours, but of course */
		273	/* the perl5porters will call that (correct) behaviour buggy */
		274	sv_unmagic (sv, FOREIGN_MAGIC);
		275	}
		276
		277	/*****************************************************************************/
		278
		279	/* defines all sorts of constants to 0 unless they are already defined */
		280	/* also provides const_iv_ and const_niv_ macros for them */
		281	#include "def0.h"
		282
		283	/*****************************************************************************/
		284
		285	static void
		286	fiemap (eio_req *req)
		287	{
		288	req->result = -1;
		289
		290	#if HAVE_FIEMAP
		291	/* assume some c99 */
		292	struct fiemap *fiemap = 0;
		293	size_t end_offset;
		294	int count = req->int3;
		295
		296	req->flags |= EIO_FLAG_PTR1_FREE;
		297
		298	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		299	/* increase in 3.5kb steps */
		300	if (count < 0)
		301	count = 8;
		302
		303	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		304	errno = ENOMEM;
		305	if (!fiemap)
		306	return;
		307
		308	req->ptr1 = fiemap;
		309
		310	fiemap->fm_start = req->offs;
		311	fiemap->fm_length = req->size;
		312	fiemap->fm_flags = req->int2;
		313	fiemap->fm_extent_count = count;
		314
		315	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		316	return;
		317
		318	if (req->int3 >= 0 /* not autosizing */
		319	|| !fiemap->fm_mapped_extents /* no more extents */
		320	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		321	goto done;
		322
		323	/* else we have to loop -
		324	* it would be tempting (actually I tried that first) to just query the
		325	* number of extents needed, but linux often feels like not returning all
		326	* extents, without telling us it left any out. this complicates
		327	* this quite a bit.
		328	*/
		329
		330	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		331
		332	for (;;)
		333	{
		334	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		335	char scratch[3072];
		336	struct fiemap *incmap = (struct fiemap *)scratch;
		337
		338	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		339	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		340	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		341	incmap->fm_flags = fiemap->fm_flags;
		342	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		343
		344	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		345	return;
		346
		347	if (!incmap->fm_mapped_extents)
		348	goto done;
		349
		350	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		351	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		352	errno = ENOMEM;
		353	if (!fiemap)
		354	return;
		355
		356	req->ptr1 = fiemap;
		357
		358	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		359	{
		360	struct fiemap_extent *e = incmap->fm_extents + count;
		361
		362	if (e->fe_logical + e->fe_length >= end_offset)
		363	goto done;
		364
		365	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		366
		367	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		368	goto done;
		369
		370	}
		371	}
		372
		373	done:
		374	req->result = 0;
		375
		376	#else
		377	errno = ENOSYS;
		378	#endif
		379	}
		380
		381	/*****************************************************************************/
325		382
326	enum {	383	enum {
327	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	384	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
328	};	385	};
329		386
330	#include "libeio/eio.c"
331
332	typedef eio_req *aio_req;	387	typedef eio_req *aio_req;
333	typedef eio_req *aio_req_ornot;	388	typedef eio_req *aio_req_ornot;
		389	typedef eio_wd aio_wd;
334		390
335	static SV *on_next_submit;	391	static SV *on_next_submit;
336	static int next_pri = EIO_PRI_DEFAULT;	392	static int next_pri = EIO_PRI_DEFAULT;
337	static int max_outstanding;	393	static int max_outstanding;
338		394
339	static s_epipe respipe;	395	static s_epipe respipe;
340		396
341	static void req_destroy (aio_req req);	397	static void req_destroy (aio_req req);
342	static void req_cancel (aio_req req);	398	static void req_cancel (aio_req req);
343		399
344	static void want_poll (void)	400	static void
		401	want_poll (void)
345	{	402	{
346	/* write a dummy byte to the pipe so fh becomes ready */	403	/* write a dummy byte to the pipe so fh becomes ready */
347	s_epipe_signal (&respipe);	404	s_epipe_signal (&respipe);
348	}	405	}
349		406
350	static void done_poll (void)	407	static void
		408	done_poll (void)
351	{	409	{
352	/* read any signals sent by the worker threads */	410	/* read any signals sent by the worker threads */
353	s_epipe_drain (&respipe);	411	s_epipe_drain (&respipe);
354	}	412	}
355		413
356	/* must be called at most once */	414	/* must be called at most once */
		415	static SV *
357	static SV *req_sv (aio_req req, HV *stash)	416	req_sv (aio_req req, HV *stash)
358	{	417	{
359	if (!req->self)	418	if (!req->self)
360	{	419	{
361	req->self = (SV *)newHV ();	420	req->self = (SV *)newHV ();
362	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	421	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
363	}	422	}
364		423
365	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	424	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
366	}	425	}
367		426
368	static aio_req SvAIO_REQ (SV *sv)	427	static SV *
		428	newSVaio_wd (aio_wd wd)
		429	{
		430	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		431	}
		432
		433	static aio_req
		434	SvAIO_REQ (SV *sv)
369	{	435	{
370	MAGIC *mg;	436	MAGIC *mg;
371		437
372	if (!SvROK (sv)	438	if (!SvROK (sv)
		439	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
373	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	440	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
374	&& SvSTASH (SvRV (sv)) != aio_req_stash	441	&& SvSTASH (SvRV (sv)) != aio_req_stash
375	&& !sv_derived_from (sv, "IO::AIO::REQ")))	442	&& !sv_derived_from (sv, "IO::AIO::REQ")))
376	croak ("object of class IO::AIO::REQ expected");	443	croak ("object of class IO::AIO::REQ expected");
377		444
378	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	445	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
379		446
380	return mg ? (aio_req)mg->mg_ptr : 0;	447	return mg ? (aio_req)mg->mg_ptr : 0;
381	}	448	}
382		449
		450	static aio_wd
		451	SvAIO_WD (SV *sv)
		452	{
		453	if (!SvROK (sv)
		454	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		455	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		456	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		457
		458	return (aio_wd)(long)SvIVX (SvRV (sv));
		459	}
		460
		461	static SV *
		462	newmortalFH (int fd, int flags)
		463	{
		464	if (fd < 0)
		465	return &PL_sv_undef;
		466
		467	GV *gv = (GV *)sv_newmortal ();
		468	char sym[64];
		469	int symlen;
		470
		471	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		472	gv_init (gv, aio_stash, sym, symlen, 0);
		473
		474	symlen = snprintf (
		475	sym,
		476	sizeof (sym),
		477	"%s&=%d",
		478	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		479	fd
		480	);
		481
		482	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		483	? (SV *)gv : &PL_sv_undef;
		484	}
		485
		486	static void
383	static void aio_grp_feed (aio_req grp)	487	aio_grp_feed (aio_req grp)
384	{	488	{
385	if (grp->sv2 && SvOK (grp->sv2))	489	if (grp->sv2 && SvOK (grp->sv2))
386	{	490	{
387	dSP;	491	dSP;
388		492
…		…
396	FREETMPS;	500	FREETMPS;
397	LEAVE;	501	LEAVE;
398	}	502	}
399	}	503	}
400		504
		505	static void
401	static void req_submit (eio_req *req)	506	req_submit (eio_req *req)
402	{	507	{
403	eio_submit (req);	508	eio_submit (req);
404		509
405	if (expect_false (on_next_submit))	510	if (expect_false (on_next_submit))
406	{	511	{
…		…
413	PUTBACK;	518	PUTBACK;
414	call_sv (cb, G_DISCARD | G_EVAL);	519	call_sv (cb, G_DISCARD | G_EVAL);
415	}	520	}
416	}	521	}
417		522
		523	static int
418	static int req_invoke (eio_req *req)	524	req_invoke (eio_req *req)
419	{	525	{
420	if (req->flags & FLAG_SV2_RO_OFF)	526	if (req->flags & FLAG_SV2_RO_OFF)
421	SvREADONLY_off (req->sv2);	527	SvREADONLY_off (req->sv2);
422		528
423	if (!EIO_CANCELLED (req) && req->callback)	529	if (!EIO_CANCELLED (req) && req->callback)
…		…
444	SvREADONLY_on (sv_result);	550	SvREADONLY_on (sv_result);
445	}	551	}
446		552
447	switch (req->type)	553	switch (req->type)
448	{	554	{
		555	case EIO_WD_OPEN:
		556	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		557	break;
		558
449	case EIO_READDIR:	559	case EIO_READDIR:
450	{	560	{
451	SV *rv = &PL_sv_undef;	561	SV *rv = &PL_sv_undef;
452		562
453	if (req->result >= 0)	563	if (req->result >= 0)
…		…
506	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	616	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
507	}	617	}
508	break;	618	break;
509		619
510	case EIO_OPEN:	620	case EIO_OPEN:
511	{	621	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;	622	break;
540		623
541	case EIO_STATVFS:	624	case EIO_STATVFS:
542	case EIO_FSTATVFS:	625	case EIO_FSTATVFS:
543	{	626	{
544	SV *rv = &PL_sv_undef;	627	SV *rv = &PL_sv_undef;
545		628
		629	#ifndef _WIN32
546	if (req->result >= 0)	630	if (req->result >= 0)
547	{	631	{
548	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	632	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
549	HV *hv = newHV ();	633	HV *hv = newHV ();
		634	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		635	* chooses to make it a struct.
		636	*/
		637	unsigned long fsid = 0;
		638	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
550		639
551	rv = sv_2mortal (newRV_noinc ((SV *)hv));	640	rv = sv_2mortal (newRV_noinc ((SV *)hv));
552		641
553	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	642	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);	643	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);	645	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);	646	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);	647	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);	648	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);	649	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);	650	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
562	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	651	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);	652	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
564	}	653	}
		654	#endif
565		655
566	PUSHs (rv);	656	PUSHs (rv);
567	}	657	}
568		658
569	break;	659	break;
…		…
593	break;	683	break;
594		684
595	case EIO_STAT:	685	case EIO_STAT:
596	case EIO_LSTAT:	686	case EIO_LSTAT:
597	case EIO_FSTAT:	687	case EIO_FSTAT:
598	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	688	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		689
599	PL_laststatval = req->result;	690	if (!(PL_laststatval = req->result))
		691	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
600	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	692	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		693
601	PUSHs (sv_result);	694	PUSHs (sv_result);
		695	break;
		696
		697	case EIO_SEEK:
		698	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
602	break;	699	break;
603		700
604	case EIO_READ:	701	case EIO_READ:
605	{	702	{
606	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	703	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
609	SvSETMAGIC (req->sv2);	706	SvSETMAGIC (req->sv2);
610	PUSHs (sv_result);	707	PUSHs (sv_result);
611	}	708	}
612	break;	709	break;
613		710
		711	case EIO_SLURP:
		712	{
		713	if (req->result >= 0)
		714	{
		715	/* if length was originally not known, we steal the malloc'ed memory */
		716	if (req->flags & EIO_FLAG_PTR2_FREE)
		717	{
		718	req->flags &= ~EIO_FLAG_PTR2_FREE;
		719	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		720	}
		721	else
		722	{
		723	SvCUR_set (req->sv2, req->result);
		724	*SvEND (req->sv2) = 0;
		725	SvPOK_only (req->sv2);
		726	}
		727
		728	SvSETMAGIC (req->sv2);
		729	}
		730
		731	PUSHs (sv_result);
		732	}
		733	break;
		734
		735	case EIO_CUSTOM:
		736	if (req->feed == fiemap)
		737	{
		738	#if HAVE_FIEMAP
		739	if (!req->result)
		740	{
		741	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		742
		743	if (fiemap->fm_extent_count)
		744	{
		745	AV *av = newAV ();
		746	int i;
		747
		748	while (fiemap->fm_mapped_extents)
		749	{
		750	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		751	AV *ext_av = newAV ();
		752
		753	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		754	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		755	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		756	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		757
		758	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		759	}
		760
		761	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		762	}
		763	else
		764	{
		765	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		766	PUSHs (sv_result);
		767	}
		768	}
		769	#endif
		770	}
		771	else
		772	PUSHs (sv_result);
		773	break;
		774
614	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	775	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
615	if (req->result > 0)	776	if (req->result > 0)
616	SvIV_set (sv_result, 0);	777	SvIV_set (sv_result, 0);
617	/* FALLTHROUGH */	778	/* FALLTHROUGH */
618		779
…		…
639	}	800	}
640		801
641	return !!SvTRUE (ERRSV);	802	return !!SvTRUE (ERRSV);
642	}	803	}
643		804
		805	static void
644	static void req_destroy (aio_req req)	806	req_destroy (aio_req req)
645	{	807	{
646	if (req->self)	808	if (req->self)
647	{	809	{
648	sv_unmagic (req->self, PERL_MAGIC_ext);	810	sv_unmagic (req->self, PERL_MAGIC_ext);
649	SvREFCNT_dec (req->self);	811	SvREFCNT_dec (req->self);
650	}	812	}
651		813
652	SvREFCNT_dec (req->sv1);	814	SvREFCNT_dec (req->sv1);
653	SvREFCNT_dec (req->sv2);	815	SvREFCNT_dec (req->sv2);
		816	SvREFCNT_dec (req->sv3);
		817	SvREFCNT_dec (req->sv4);
654	SvREFCNT_dec (req->callback);	818	SvREFCNT_dec (req->callback);
655		819
656	Safefree (req);	820	free (req);
657	}	821	}
658		822
		823	static void
659	static void req_cancel_subs (aio_req grp)	824	req_cancel_subs (aio_req grp)
660	{	825	{
661	aio_req sub;
662
663	if (grp->type != EIO_GROUP)	826	if (grp->type != EIO_GROUP)
664	return;	827	return;
665		828
666	SvREFCNT_dec (grp->sv2);	829	SvREFCNT_dec (grp->sv2);
667	grp->sv2 = 0;	830	grp->sv2 = 0;
668		831
669	eio_grp_cancel (grp);	832	eio_grp_cancel (grp);
670	}	833	}
671		834
		835	static void ecb_cold
672	static void create_respipe (void)	836	create_respipe (void)
673	{	837	{
674	if (s_epipe_renew (&respipe))	838	if (s_epipe_renew (&respipe))
675	croak ("IO::AIO: unable to initialize result pipe");	839	croak ("IO::AIO: unable to initialize result pipe");
676	}	840	}
677		841
678	static void poll_wait (void)	842	static void
		843	poll_wait (void)
679	{	844	{
680	while (eio_nreqs ())	845	while (eio_nreqs ())
681	{	846	{
682	int size;	847	int size;
683		848
684	X_LOCK (reslock);	849	X_LOCK (EIO_POOL->reslock);
685	size = res_queue.size;	850	size = EIO_POOL->res_queue.size;
686	X_UNLOCK (reslock);	851	X_UNLOCK (EIO_POOL->reslock);
687		852
688	if (size)	853	if (size)
689	return;	854	return;
690		855
691	etp_maybe_start_thread ();	856	etp_maybe_start_thread (EIO_POOL);
692		857
693	s_epipe_wait (&respipe);	858	s_epipe_wait (&respipe);
694	}	859	}
695	}	860	}
696		861
697	static int poll_cb (void)	862	static int
		863	poll_cb (void)
698	{	864	{
699	for (;;)	865	for (;;)
700	{	866	{
701	int res = eio_poll ();	867	int res = eio_poll ();
702		868
…		…
708		874
709	poll_wait ();	875	poll_wait ();
710	}	876	}
711	}	877	}
712		878
713	static void atfork_child (void)	879	static void ecb_cold
		880	reinit (void)
714	{	881	{
715	create_respipe ();	882	create_respipe ();
		883
		884	if (eio_init (want_poll, done_poll) < 0)
		885	croak ("IO::AIO: unable to initialise eio library");
716	}	886	}
717		887
718	/*****************************************************************************/	888	/*****************************************************************************/
719		889
720	#if !_POSIX_MAPPED_FILES	890	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)	891	get_cb (SV *cb_sv)
763	{	892	{
764	SvGETMAGIC (cb_sv);	893	SvGETMAGIC (cb_sv);
765	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	894	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
766	}	895	}
767		896
		897	static aio_req ecb_noinline
		898	dreq (SV *callback)
		899	{
		900	SV *cb_cv;
		901	aio_req req;
		902	int req_pri = next_pri;
		903	next_pri = EIO_PRI_DEFAULT;
		904
		905	cb_cv = get_cb (callback);
		906
		907	req = calloc (sizeof (*req), 1);
		908	if (!req)
		909	croak ("out of memory during eio_req allocation");
		910
		911	req->callback = SvREFCNT_inc (cb_cv);
		912	req->pri = req_pri;
		913
		914	return req;
		915	}
		916
768	#define dREQ \	917	#define dREQ \
769	SV *cb_cv; \	918	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		919
783	#define REQ_SEND \	920	#define REQ_SEND \
784	PUTBACK; \	921	PUTBACK; \
785	req_submit (req); \	922	req_submit (req); \
786	SPAGAIN; \	923	SPAGAIN; \
787	\	924	\
788	if (GIMME_V != G_VOID) \	925	if (GIMME_V != G_VOID) \
789	XPUSHs (req_sv (req, aio_req_stash));	926	XPUSHs (req_sv (req, aio_req_stash));
790		927
		928	ecb_inline void
		929	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		930	{
		931	if (expect_false (SvROK (path)))
		932	{
		933	SV *rv = SvRV (path);
		934	SV *wdob;
		935
		936	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		937	{
		938	path = AvARRAY (rv)[1];
		939	wdob = AvARRAY (rv)[0];
		940
		941	if (SvOK (wdob))
		942	{
		943	*wd = SvAIO_WD (wdob);
		944	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		945	}
		946	else
		947	*wd = EIO_INVALID_WD;
		948	}
		949	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		950	{
		951	*wd = (aio_wd)(long)SvIVX (rv);
		952	*wdsv = SvREFCNT_inc_NN (rv);
		953	*ptr = ".";
		954	return; /* path set to "." */
		955	}
		956	else
		957	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		958	}
		959
		960	*pathsv = newSVsv (path);
		961	*ptr = SvPVbyte_nolen (*pathsv);
		962	}
		963
		964	static void ecb_noinline
		965	req_set_path1 (aio_req req, SV *path)
		966	{
		967	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		968	}
		969
		970	static void ecb_noinline
		971	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		972	{
		973	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		974
		975	switch (SvTYPE (rv))
		976	{
		977	case SVt_PVIO:
		978	case SVt_PVLV:
		979	case SVt_PVGV:
		980	req->type = type_fh;
		981	req->sv1 = newSVsv (fh_or_path);
		982	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		983	break;
		984
		985	default:
		986	req->type = type_path;
		987	req_set_path1 (req, fh_or_path);
		988	break;
		989	}
		990	}
		991
		992	/*****************************************************************************/
		993
		994	static void
		995	ts_set (struct timespec *ts, NV value)
		996	{
		997	ts->tv_sec = value;
		998	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		999	}
		1000
		1001	static NV
		1002	ts_get (const struct timespec *ts)
		1003	{
		1004	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1005	}
		1006
		1007	/*****************************************************************************/
		1008
		1009	XS(boot_IO__AIO) ecb_cold;
		1010
791	MODULE = IO::AIO PACKAGE = IO::AIO	1011	MODULE = IO::AIO PACKAGE = IO::AIO
792		1012
793	PROTOTYPES: ENABLE	1013	PROTOTYPES: ENABLE
794		1014
795	BOOT:	1015	BOOT:
…		…
799	IV iv;	1019	IV iv;
800	} *civ, const_iv[] = {	1020	} *civ, const_iv[] = {
801	# define const_niv(name, value) { # name, (IV) value },	1021	# define const_niv(name, value) { # name, (IV) value },
802	# define const_iv(name) { # name, (IV) name },	1022	# define const_iv(name) { # name, (IV) name },
803	# define const_eio(name) { # name, (IV) EIO_ ## name },	1023	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1024
		1025	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1026	/* the first block can be undef if missing */
		1027	const_iv (ENOSYS)
804	const_iv (EXDEV)	1028	const_iv (EXDEV)
805	const_iv (ENOSYS)	1029	const_iv (EBADR)
		1030
		1031	/* for lseek */
		1032	const_iv (SEEK_DATA)
		1033	const_iv (SEEK_HOLE)
		1034
		1035	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1036	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1037	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1038	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1039	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1040	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1041
		1042	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1043	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1044	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1045	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1046	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1047
		1048	/* the second block will be 0 when missing */
		1049	const_iv (O_ACCMODE)
		1050
806	const_iv (O_RDONLY)	1051	const_iv (O_RDONLY)
807	const_iv (O_WRONLY)	1052	const_iv (O_WRONLY)
808	const_iv (O_RDWR)	1053	const_iv (O_RDWR)
809	const_iv (O_CREAT)	1054	const_iv (O_CREAT)
810	const_iv (O_TRUNC)	1055	const_iv (O_TRUNC)
…		…
823	const_iv (O_SEARCH)	1068	const_iv (O_SEARCH)
824	const_iv (O_DIRECTORY)	1069	const_iv (O_DIRECTORY)
825	const_iv (O_DSYNC)	1070	const_iv (O_DSYNC)
826	const_iv (O_RSYNC)	1071	const_iv (O_RSYNC)
827	const_iv (O_SYNC)	1072	const_iv (O_SYNC)
		1073	const_iv (O_PATH)
		1074	const_iv (O_TMPFILE)
828	const_iv (O_TTY_INIT)	1075	const_iv (O_TTY_INIT)
829		1076
830	const_iv (S_IFIFO)	1077	const_iv (S_IFIFO)
831	const_iv (S_IFCHR)	1078	const_iv (S_IFCHR)
832	const_iv (S_IFBLK)	1079	const_iv (S_IFBLK)
…		…
834	const_iv (S_IFREG)	1081	const_iv (S_IFREG)
835	const_iv (S_IFDIR)	1082	const_iv (S_IFDIR)
836	const_iv (S_IFWHT)	1083	const_iv (S_IFWHT)
837	const_iv (S_IFSOCK)	1084	const_iv (S_IFSOCK)
838	const_iv (S_IFMT)	1085	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		1086
853	const_iv (ST_RDONLY)	1087	const_iv (ST_RDONLY)
854	const_iv (ST_NOSUID)	1088	const_iv (ST_NOSUID)
855	const_iv (ST_NODEV)	1089	const_iv (ST_NODEV)
856	const_iv (ST_NOEXEC)	1090	const_iv (ST_NOEXEC)
…		…
866	const_iv (PROT_NONE)	1100	const_iv (PROT_NONE)
867	const_iv (PROT_EXEC)	1101	const_iv (PROT_EXEC)
868	const_iv (PROT_READ)	1102	const_iv (PROT_READ)
869	const_iv (PROT_WRITE)	1103	const_iv (PROT_WRITE)
870		1104
871	/*const_iv (MAP_FIXED)*/
872	const_iv (MAP_PRIVATE)	1105	const_iv (MAP_PRIVATE)
873	const_iv (MAP_SHARED)	1106	const_iv (MAP_SHARED)
		1107	const_iv (MAP_FIXED)
874	const_iv (MAP_ANONYMOUS)	1108	const_iv (MAP_ANONYMOUS)
875		1109
876	/* linuxish */	1110	/* linuxish */
877	const_iv (MAP_HUGETLB)
878	const_iv (MAP_LOCKED)	1111	const_iv (MAP_LOCKED)
879	const_iv (MAP_NORESERVE)	1112	const_iv (MAP_NORESERVE)
880	const_iv (MAP_POPULATE)	1113	const_iv (MAP_POPULATE)
881	const_iv (MAP_NONBLOCK)	1114	const_iv (MAP_NONBLOCK)
		1115	const_iv (MAP_GROWSDOWN)
		1116	const_iv (MAP_32BIT)
		1117	const_iv (MAP_HUGETLB)
		1118	const_iv (MAP_STACK)
		1119
		1120	const_iv (MREMAP_MAYMOVE)
		1121	const_iv (MREMAP_FIXED)
		1122
		1123	const_iv (F_DUPFD_CLOEXEC)
		1124
		1125	const_iv (F_OFD_GETLK)
		1126	const_iv (F_OFD_SETLK)
		1127	const_iv (F_OFD_GETLKW)
		1128
		1129	const_iv (FIFREEZE)
		1130	const_iv (FITHAW)
		1131	const_iv (FITRIM)
		1132	const_iv (FICLONE)
		1133	const_iv (FICLONERANGE)
		1134	const_iv (FIDEDUPERANGE)
		1135
		1136	const_iv (FS_IOC_GETFLAGS)
		1137	const_iv (FS_IOC_SETFLAGS)
		1138	const_iv (FS_IOC_GETVERSION)
		1139	const_iv (FS_IOC_SETVERSION)
		1140	const_iv (FS_IOC_FIEMAP)
		1141	const_iv (FS_IOC_FSGETXATTR)
		1142	const_iv (FS_IOC_FSSETXATTR)
		1143	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1144	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1145	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1146
		1147	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1148
		1149	const_iv (FS_SECRM_FL)
		1150	const_iv (FS_UNRM_FL)
		1151	const_iv (FS_COMPR_FL)
		1152	const_iv (FS_SYNC_FL)
		1153	const_iv (FS_IMMUTABLE_FL)
		1154	const_iv (FS_APPEND_FL)
		1155	const_iv (FS_NODUMP_FL)
		1156	const_iv (FS_NOATIME_FL)
		1157	const_iv (FS_DIRTY_FL)
		1158	const_iv (FS_COMPRBLK_FL)
		1159	const_iv (FS_NOCOMP_FL)
		1160	const_iv (FS_ENCRYPT_FL)
		1161	const_iv (FS_BTREE_FL)
		1162	const_iv (FS_INDEX_FL)
		1163	const_iv (FS_JOURNAL_DATA_FL)
		1164	const_iv (FS_NOTAIL_FL)
		1165	const_iv (FS_DIRSYNC_FL)
		1166	const_iv (FS_TOPDIR_FL)
		1167	const_iv (FS_FL_USER_MODIFIABLE)
		1168
		1169	const_iv (FS_XFLAG_REALTIME)
		1170	const_iv (FS_XFLAG_PREALLOC)
		1171	const_iv (FS_XFLAG_IMMUTABLE)
		1172	const_iv (FS_XFLAG_APPEND)
		1173	const_iv (FS_XFLAG_SYNC)
		1174	const_iv (FS_XFLAG_NOATIME)
		1175	const_iv (FS_XFLAG_NODUMP)
		1176	const_iv (FS_XFLAG_RTINHERIT)
		1177	const_iv (FS_XFLAG_PROJINHERIT)
		1178	const_iv (FS_XFLAG_NOSYMLINKS)
		1179	const_iv (FS_XFLAG_EXTSIZE)
		1180	const_iv (FS_XFLAG_EXTSZINHERIT)
		1181	const_iv (FS_XFLAG_NODEFRAG)
		1182	const_iv (FS_XFLAG_FILESTREAM)
		1183	const_iv (FS_XFLAG_DAX)
		1184	const_iv (FS_XFLAG_HASATTR)
		1185
		1186	const_iv (FIEMAP_FLAG_SYNC)
		1187	const_iv (FIEMAP_FLAG_XATTR)
		1188	const_iv (FIEMAP_FLAGS_COMPAT)
		1189	const_iv (FIEMAP_EXTENT_LAST)
		1190	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1191	const_iv (FIEMAP_EXTENT_DELALLOC)
		1192	const_iv (FIEMAP_EXTENT_ENCODED)
		1193	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1194	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1195	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1196	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1197	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1198	const_iv (FIEMAP_EXTENT_MERGED)
		1199	const_iv (FIEMAP_EXTENT_SHARED)
		1200
		1201	const_iv (SPLICE_F_MOVE)
		1202	const_iv (SPLICE_F_NONBLOCK)
		1203	const_iv (SPLICE_F_MORE)
		1204	const_iv (SPLICE_F_GIFT)
		1205
		1206	const_iv (EFD_CLOEXEC)
		1207	const_iv (EFD_NONBLOCK)
		1208	const_iv (EFD_SEMAPHORE)
		1209
		1210	const_iv (CLOCK_REALTIME)
		1211	const_iv (CLOCK_MONOTONIC)
		1212	const_iv (CLOCK_BOOTTIME)
		1213	const_iv (CLOCK_REALTIME_ALARM)
		1214	const_iv (CLOCK_BOOTTIME_ALARM)
		1215
		1216	const_iv (TFD_NONBLOCK)
		1217	const_iv (TFD_CLOEXEC)
		1218
		1219	const_iv (TFD_TIMER_ABSTIME)
		1220	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1221
		1222	/* these are libeio constants, and are independent of gendef0 */
		1223	const_eio (SEEK_SET)
		1224	const_eio (SEEK_CUR)
		1225	const_eio (SEEK_END)
882		1226
883	const_eio (MCL_FUTURE)	1227	const_eio (MCL_FUTURE)
884	const_eio (MCL_CURRENT)	1228	const_eio (MCL_CURRENT)
885		1229
886	const_eio (MS_ASYNC)	1230	const_eio (MS_ASYNC)
…		…
890	const_eio (MT_MODIFY)	1234	const_eio (MT_MODIFY)
891		1235
892	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1236	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
893	const_eio (SYNC_FILE_RANGE_WRITE)	1237	const_eio (SYNC_FILE_RANGE_WRITE)
894	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1238	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1239
		1240	const_eio (FALLOC_FL_KEEP_SIZE)
		1241	const_eio (FALLOC_FL_PUNCH_HOLE)
		1242	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1243	const_eio (FALLOC_FL_ZERO_RANGE)
		1244	const_eio (FALLOC_FL_INSERT_RANGE)
		1245	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1246
		1247	const_eio (RENAME_NOREPLACE)
		1248	const_eio (RENAME_EXCHANGE)
		1249	const_eio (RENAME_WHITEOUT)
895		1250
896	const_eio (READDIR_DENTS)	1251	const_eio (READDIR_DENTS)
897	const_eio (READDIR_DIRS_FIRST)	1252	const_eio (READDIR_DIRS_FIRST)
898	const_eio (READDIR_STAT_ORDER)	1253	const_eio (READDIR_STAT_ORDER)
899	const_eio (READDIR_FOUND_UNKNOWN)	1254	const_eio (READDIR_FOUND_UNKNOWN)
…		…
910	};	1265	};
911		1266
912	aio_stash = gv_stashpv ("IO::AIO" , 1);	1267	aio_stash = gv_stashpv ("IO::AIO" , 1);
913	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1268	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
914	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1269	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1270	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
915		1271
916	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1272	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));	1273	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
918		1274
919	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1275	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
920		1276
921	create_respipe ();	1277	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	}	1278	}
		1279
		1280	void
		1281	reinit ()
		1282	PROTOTYPE:
929		1283
930	void	1284	void
931	max_poll_reqs (unsigned int nreqs)	1285	max_poll_reqs (unsigned int nreqs)
932	PROTOTYPE: $	1286	PROTOTYPE: $
933	CODE:	1287	CODE:
…		…
968	PROTOTYPE: $	1322	PROTOTYPE: $
969	CODE:	1323	CODE:
970	max_outstanding = maxreqs;	1324	max_outstanding = maxreqs;
971		1325
972	void	1326	void
973	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1327	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
974	PPCODE:	1328	PPCODE:
975	{	1329	{
976	dREQ;	1330	dREQ;
977		1331
		1332	req->type = EIO_WD_OPEN;
		1333	req_set_path1 (req, pathname);
		1334
		1335	REQ_SEND;
		1336	}
		1337
		1338	void
		1339	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1340	PPCODE:
		1341	{
		1342	dREQ;
		1343
978	req->type = EIO_OPEN;	1344	req->type = EIO_OPEN;
979	req->sv1 = newSVsv (pathname);	1345	req_set_path1 (req, pathname);
980	req->ptr1 = SvPVbyte_nolen (req->sv1);
981	req->int1 = flags;	1346	req->int1 = flags;
982	req->int2 = mode;	1347	req->int2 = mode;
983		1348
984	REQ_SEND;	1349	REQ_SEND;
985	}	1350	}
986		1351
987	void	1352	void
988	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1353	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
989	ALIAS:	1354	ALIAS:
990	aio_fsync = EIO_FSYNC	1355	aio_fsync = EIO_FSYNC
991	aio_fdatasync = EIO_FDATASYNC	1356	aio_fdatasync = EIO_FDATASYNC
		1357	aio_syncfs = EIO_SYNCFS
992	PPCODE:	1358	PPCODE:
993	{	1359	{
994	int fd = s_fileno_croak (fh, 0);	1360	int fd = s_fileno_croak (fh, 0);
995	dREQ;	1361	dREQ;
996		1362
997	req->type = ix;	1363	req->type = ix;
998	req->sv1 = newSVsv (fh);	1364	req->sv1 = newSVsv (fh);
999	req->int1 = fd;	1365	req->int1 = fd;
1000		1366
1001	REQ_SEND (req);	1367	REQ_SEND;
1002	}	1368	}
1003		1369
1004	void	1370	void
1005	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1371	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1006	PPCODE:	1372	PPCODE:
1007	{	1373	{
1008	int fd = s_fileno_croak (fh, 0);	1374	int fd = s_fileno_croak (fh, 0);
1009	dREQ;	1375	dREQ;
1010		1376
1011	req->type = EIO_SYNC_FILE_RANGE;	1377	req->type = EIO_SYNC_FILE_RANGE;
1012	req->sv1 = newSVsv (fh);	1378	req->sv1 = newSVsv (fh);
1013	req->int1 = fd;	1379	req->int1 = fd;
1014	req->offs = offset;	1380	req->offs = offset;
1015	req->size = nbytes;	1381	req->size = nbytes;
1016	req->int2 = flags;	1382	req->int2 = flags;
1017		1383
1018	REQ_SEND (req);	1384	REQ_SEND;
1019	}	1385	}
1020		1386
1021	void	1387	void
1022	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1388	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1023	PPCODE:	1389	PPCODE:
1024	{	1390	{
1025	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
1026	int fd = s_fileno_croak (fh, 0);	1391	int fd = s_fileno_croak (fh, 0);
1027	dREQ;	1392	dREQ;
1028		1393
1029	if (close_pipe < 0)	1394	req->type = EIO_FALLOCATE;
		1395	req->sv1 = newSVsv (fh);
		1396	req->int1 = fd;
		1397	req->int2 = mode;
		1398	req->offs = offset;
		1399	req->size = len;
		1400
		1401	REQ_SEND;
		1402	}
		1403
		1404	void
		1405	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1406	PPCODE:
		1407	{
		1408	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1409	int fd = s_fileno_croak (fh, 0);
		1410	dREQ;
		1411
		1412	if (expect_false (close_fd < 0))
1030	{	1413	{
1031	int pipefd [2];	1414	int pipefd [2];
1032		1415
		1416	if (
		1417	#ifdef _WIN32
		1418	_pipe (pipefd, 1, _O_BINARY) < 0
		1419	#else
1033	if (pipe (pipefd) < 0	1420	pipe (pipefd) < 0
1034	|| close (pipefd [1]) < 0
1035	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1421	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1422	#endif
		1423	|| close (pipefd [1]) < 0
		1424	)
1036	abort (); /*D*/	1425	abort (); /*D*/
1037		1426
1038	close_pipe = pipefd [0];	1427	close_fd = pipefd [0];
1039	}	1428	}
1040		1429
1041	req->type = EIO_DUP2;	1430	req->type = EIO_DUP2;
1042	req->int1 = close_pipe;	1431	req->int1 = close_fd;
1043	req->sv2 = newSVsv (fh);	1432	req->sv2 = newSVsv (fh);
1044	req->int2 = fd;	1433	req->int2 = fd;
1045		1434
1046	REQ_SEND (req);	1435	REQ_SEND;
1047	}	1436	}
1048		1437
1049	void	1438	void
		1439	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1440	PPCODE:
		1441	{
		1442	int fd = s_fileno_croak (fh, 0);
		1443	dREQ;
		1444
		1445	req->type = EIO_SEEK;
		1446	req->sv1 = newSVsv (fh);
		1447	req->int1 = fd;
		1448	req->offs = SvVAL64 (offset);
		1449	req->int2 = whence;
		1450
		1451	REQ_SEND;
		1452	}
		1453
		1454	void
1050	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1455	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1051	ALIAS:	1456	ALIAS:
1052	aio_read = EIO_READ	1457	aio_read = EIO_READ
1053	aio_write = EIO_WRITE	1458	aio_write = EIO_WRITE
1054	PPCODE:	1459	PPCODE:
1055	{	1460	{
…		…
1071	len = svlen - dataoffset;	1476	len = svlen - dataoffset;
1072	}	1477	}
1073	else	1478	else
1074	{	1479	{
1075	/* read: check type and grow scalar as necessary */	1480	/* read: check type and grow scalar as necessary */
1076	SvUPGRADE (data, SVt_PV);	1481	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1077	svptr = SvGROW (data, len + dataoffset + 1);	1482	svptr = sv_grow (data, len + dataoffset + 1);
		1483	else if (SvCUR (data) < len + dataoffset)
		1484	croak ("length + dataoffset outside of scalar, and cannot grow");
1078	}	1485	}
1079		1486
1080	{	1487	{
1081	dREQ;	1488	dREQ;
1082		1489
…		…
1098	REQ_SEND;	1505	REQ_SEND;
1099	}	1506	}
1100	}	1507	}
1101		1508
1102	void	1509	void
		1510	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1511	ALIAS:
		1512	aio_ioctl = EIO_IOCTL
		1513	aio_fcntl = EIO_FCNTL
		1514	PPCODE:
		1515	{
		1516	int fd = s_fileno_croak (fh, 0);
		1517	char *svptr;
		1518
		1519	if (SvPOK (arg) || !SvNIOK (arg))
		1520	{
		1521	STRLEN svlen;
		1522	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1523	#ifdef IOCPARM_LEN
		1524	STRLEN need = IOCPARM_LEN (request);
		1525	#else
		1526	STRLEN need = 256;
		1527	#endif
		1528
		1529	if (svlen < need)
		1530	svptr = SvGROW (arg, need);
		1531	}
		1532	else
		1533	svptr = (char *)SvIV (arg);
		1534
		1535	{
		1536	dREQ;
		1537
		1538	req->type = ix;
		1539	req->sv1 = newSVsv (fh);
		1540	req->int1 = fd;
		1541	req->int2 = (long)request;
		1542	req->sv2 = SvREFCNT_inc (arg);
		1543	req->ptr2 = svptr;
		1544
		1545	REQ_SEND;
		1546	}
		1547	}
		1548
		1549	void
1103	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1550	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1104	ALIAS:	1551	ALIAS:
1105	aio_readlink = EIO_READLINK	1552	aio_readlink = EIO_READLINK
1106	aio_realpath = EIO_REALPATH	1553	aio_realpath = EIO_REALPATH
1107	PPCODE:	1554	PPCODE:
1108	{	1555	{
1109	SV *data;
1110	dREQ;	1556	dREQ;
1111		1557
1112	req->type = ix;	1558	req->type = ix;
1113	req->sv1 = newSVsv (path);	1559	req_set_path1 (req, pathname);
1114	req->ptr1 = SvPVbyte_nolen (req->sv1);
1115		1560
1116	REQ_SEND;	1561	REQ_SEND;
1117	}	1562	}
1118		1563
1119	void	1564	void
1120	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1565	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1121	PPCODE:	1566	PPCODE:
1122	{	1567	{
1123	int ifd = s_fileno_croak (in_fh , 0);	1568	int ifd = s_fileno_croak (in_fh , 0);
1124	int ofd = s_fileno_croak (out_fh, 1);	1569	int ofd = s_fileno_croak (out_fh, 1);
1125	dREQ;	1570	dREQ;
1126		1571
1127	req->type = EIO_SENDFILE;	1572	req->type = EIO_SENDFILE;
1128	req->sv1 = newSVsv (out_fh);	1573	req->sv1 = newSVsv (out_fh);
1129	req->int1 = ofd;	1574	req->int1 = ofd;
…		…
1134		1579
1135	REQ_SEND;	1580	REQ_SEND;
1136	}	1581	}
1137		1582
1138	void	1583	void
1139	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1584	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1140	PPCODE:	1585	PPCODE:
1141	{	1586	{
1142	int fd = s_fileno_croak (fh, 0);	1587	int fd = s_fileno_croak (fh, 0);
1143	dREQ;	1588	dREQ;
1144		1589
1145	req->type = EIO_READAHEAD;	1590	req->type = EIO_READAHEAD;
1146	req->sv1 = newSVsv (fh);	1591	req->sv1 = newSVsv (fh);
1147	req->int1 = fd;	1592	req->int1 = fd;
…		…
1150		1595
1151	REQ_SEND;	1596	REQ_SEND;
1152	}	1597	}
1153		1598
1154	void	1599	void
1155	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1600	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1156	ALIAS:	1601	ALIAS:
1157	aio_stat = EIO_STAT	1602	aio_stat = EIO_STAT
1158	aio_lstat = EIO_LSTAT	1603	aio_lstat = EIO_LSTAT
1159	aio_statvfs = EIO_STATVFS	1604	aio_statvfs = EIO_STATVFS
1160	PPCODE:	1605	PPCODE:
1161	{	1606	{
1162	dREQ;	1607	dREQ;
1163		1608
1164	req->sv1 = newSVsv (fh_or_path);	1609	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		1610
1177	REQ_SEND;	1611	REQ_SEND;
1178	}	1612	}
1179		1613
1180	UV	1614	UV
1181	major (UV dev)	1615	major (UV dev)
1182	ALIAS:	1616	ALIAS:
1183	minor = 1	1617	minor = 1
1184	CODE:	1618	CODE:
1185	RETVAL = ix ? major (dev) : minor (dev);	1619	RETVAL = ix ? minor (dev) : major (dev);
1186	OUTPUT:	1620	OUTPUT:
1187	RETVAL	1621	RETVAL
1188		1622
1189	UV	1623	UV
1190	makedev (UV maj, UV min)	1624	makedev (UV maj, UV min)
…		…
1192	RETVAL = makedev (maj, min);	1626	RETVAL = makedev (maj, min);
1193	OUTPUT:	1627	OUTPUT:
1194	RETVAL	1628	RETVAL
1195		1629
1196	void	1630	void
1197	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1631	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1198	PPCODE:	1632	PPCODE:
1199	{	1633	{
1200	dREQ;	1634	dREQ;
1201		1635
1202	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1636	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1203	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1637	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1204	req->sv1 = newSVsv (fh_or_path);	1638	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		1639
1217	REQ_SEND;	1640	REQ_SEND;
1218	}	1641	}
1219		1642
1220	void	1643	void
1221	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1644	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1222	PPCODE:	1645	PPCODE:
1223	{	1646	{
1224	dREQ;	1647	dREQ;
1225		1648
1226	req->sv1 = newSVsv (fh_or_path);
1227	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1649	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1228		1650	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		1651
1240	REQ_SEND;	1652	REQ_SEND;
1241	}	1653	}
1242		1654
1243	void	1655	void
1244	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1656	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:	1657	PPCODE:
1249	{	1658	{
1250	dREQ;	1659	dREQ;
1251		1660
1252	req->int2 = mode;	1661	req->int2 = mode;
1253	req->sv1 = newSVsv (fh_or_path);	1662	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		1663
1266	REQ_SEND;	1664	REQ_SEND;
1267	}	1665	}
1268		1666
1269	void	1667	void
1270	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1668	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1271	PPCODE:	1669	PPCODE:
1272	{	1670	{
1273	dREQ;	1671	dREQ;
1274		1672
1275	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1673	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1276	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1674	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1277	req->sv1 = newSVsv (fh_or_path);	1675	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		1676
1290	REQ_SEND;	1677	REQ_SEND;
1291	}	1678	}
1292		1679
1293	void	1680	void
1294	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1681	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1295	PPCODE:	1682	PPCODE:
1296	{	1683	{
1297	dREQ;	1684	dREQ;
1298		1685
1299	req->type = EIO_READDIR;	1686	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;	1687	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1303		1688
1304	if (flags & EIO_READDIR_DENTS)	1689	if (flags & EIO_READDIR_DENTS)
1305	req->int1 |= EIO_READDIR_CUSTOM2;	1690	req->int1 |= EIO_READDIR_CUSTOM2;
1306		1691
		1692	req_set_path1 (req, pathname);
		1693
1307	REQ_SEND;	1694	REQ_SEND;
1308	}	1695	}
1309		1696
1310	void	1697	void
		1698	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1699	PPCODE:
		1700	{
		1701	dREQ;
		1702
		1703	req->type = EIO_MKDIR;
		1704	req->int2 = mode;
		1705	req_set_path1 (req, pathname);
		1706
		1707	REQ_SEND;
		1708	}
		1709
		1710	void
1311	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1711	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1312	ALIAS:	1712	ALIAS:
1313	aio_unlink = EIO_UNLINK	1713	aio_unlink = EIO_UNLINK
1314	aio_rmdir = EIO_RMDIR	1714	aio_rmdir = EIO_RMDIR
1315	aio_readdir = EIO_READDIR	1715	aio_readdir = EIO_READDIR
1316	PPCODE:	1716	PPCODE:
1317	{	1717	{
1318	dREQ;	1718	dREQ;
1319		1719
1320	req->type = ix;	1720	req->type = ix;
1321	req->sv1 = newSVsv (pathname);	1721	req_set_path1 (req, pathname);
1322	req->ptr1 = SvPVbyte_nolen (req->sv1);
1323		1722
1324	REQ_SEND;	1723	REQ_SEND;
1325	}	1724	}
1326		1725
1327	void	1726	void
1328	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1727	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1329	ALIAS:	1728	ALIAS:
1330	aio_link = EIO_LINK	1729	aio_link = EIO_LINK
1331	aio_symlink = EIO_SYMLINK	1730	aio_symlink = EIO_SYMLINK
1332	aio_rename = EIO_RENAME	1731	aio_rename = EIO_RENAME
1333	PPCODE:	1732	PPCODE:
1334	{	1733	{
		1734	eio_wd wd2 = 0;
1335	dREQ;	1735	dREQ;
1336		1736
1337	req->type = ix;	1737	req->type = ix;
1338	req->sv1 = newSVsv (oldpath);	1738	req_set_path1 (req, oldpath);
1339	req->ptr1 = SvPVbyte_nolen (req->sv1);	1739	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1340	req->sv2 = newSVsv (newpath);	1740	req->int3 = (long)wd2;
1341	req->ptr2 = SvPVbyte_nolen (req->sv2);
1342		1741
1343	REQ_SEND;	1742	REQ_SEND;
1344	}	1743	}
1345		1744
1346	void	1745	void
		1746	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1747	PPCODE:
		1748	{
		1749	eio_wd wd2 = 0;
		1750	dREQ;
		1751
		1752	req->type = EIO_RENAME;
		1753	req_set_path1 (req, oldpath);
		1754	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1755	req->int2 = flags;
		1756	req->int3 = (long)wd2;
		1757
		1758	REQ_SEND;
		1759	}
		1760
		1761	void
1347	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1762	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1348	PPCODE:	1763	PPCODE:
1349	{	1764	{
1350	dREQ;	1765	dREQ;
1351		1766
1352	req->type = EIO_MKNOD;	1767	req->type = EIO_MKNOD;
1353	req->sv1 = newSVsv (pathname);
1354	req->ptr1 = SvPVbyte_nolen (req->sv1);
1355	req->int2 = (mode_t)mode;	1768	req->int2 = (mode_t)mode;
1356	req->offs = dev;	1769	req->offs = dev;
		1770	req_set_path1 (req, pathname);
1357		1771
1358	REQ_SEND;	1772	REQ_SEND;
1359	}	1773	}
1360		1774
1361	void	1775	void
1362	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1776	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1363	ALIAS:	1777	ALIAS:
1364	aio_mtouch = EIO_MTOUCH	1778	aio_mtouch = EIO_MTOUCH
1365	aio_msync = EIO_MSYNC	1779	aio_msync = EIO_MSYNC
1366	PPCODE:	1780	PPCODE:
1367	{	1781	{
1368	STRLEN svlen;	1782	STRLEN svlen;
1369	char *svptr = SvPVbyte (data, svlen);	1783	char *svptr = SvPVbyte (data, svlen);
1370	UV len = SvUV (length);	1784	UV len = SvUV (length);
		1785
		1786	if (flags < 0)
		1787	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1371		1788
1372	if (offset < 0)	1789	if (offset < 0)
1373	offset += svlen;	1790	offset += svlen;
1374		1791
1375	if (offset < 0 || offset > svlen)	1792	if (offset < 0 || offset > svlen)
…		…
1390	REQ_SEND;	1807	REQ_SEND;
1391	}	1808	}
1392	}	1809	}
1393		1810
1394	void	1811	void
1395	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1812	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1396	PPCODE:	1813	PPCODE:
1397	{	1814	{
1398	STRLEN svlen;	1815	STRLEN svlen;
1399	char *svptr = SvPVbyte (data, svlen);	1816	char *svptr = SvPVbyte (data, svlen);
1400	UV len = SvUV (length);	1817	UV len = SvUV (length);
…		…
1419	REQ_SEND;	1836	REQ_SEND;
1420	}	1837	}
1421	}	1838	}
1422		1839
1423	void	1840	void
1424	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1841	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1425	PPCODE:	1842	PPCODE:
1426	{	1843	{
1427	dREQ;	1844	dREQ;
1428		1845
1429	req->type = EIO_MLOCKALL;	1846	req->type = EIO_MLOCKALL;
…		…
1431		1848
1432	REQ_SEND;	1849	REQ_SEND;
1433	}	1850	}
1434		1851
1435	void	1852	void
		1853	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1854	PPCODE:
		1855	{
		1856	int fd = s_fileno_croak (fh, 0);
		1857	dREQ;
		1858
		1859	req->type = EIO_CUSTOM;
		1860	req->sv1 = newSVsv (fh);
		1861	req->int1 = fd;
		1862
		1863	req->feed = fiemap;
		1864	#if HAVE_FIEMAP
		1865	/* keep our fingers crossed that the next two types are 64 bit */
		1866	req->offs = start;
		1867	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1868	req->int2 = flags;
		1869	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1870	#endif
		1871
		1872	REQ_SEND;
		1873	}
		1874
		1875	void
		1876	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1877	PPCODE:
		1878	{
		1879	char *svptr = 0;
		1880
		1881	sv_clear_foreign (data);
		1882
		1883	if (length) /* known length, directly read into scalar */
		1884	{
		1885	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1886	svptr = sv_grow (data, length + 1);
		1887	else if (SvCUR (data) < length)
		1888	croak ("length outside of scalar, and cannot grow");
		1889	else
		1890	svptr = SvPVbyte_nolen (data);
		1891	}
		1892
		1893	{
		1894	dREQ;
		1895
		1896	req->type = EIO_SLURP;
		1897	req_set_path1 (req, pathname);
		1898	req->offs = offset;
		1899	req->size = length;
		1900	req->sv2 = SvREFCNT_inc (data);
		1901	req->ptr2 = svptr;
		1902
		1903	if (!SvREADONLY (data))
		1904	{
		1905	SvREADONLY_on (data);
		1906	req->flags |= FLAG_SV2_RO_OFF;
		1907	}
		1908
		1909	REQ_SEND;
		1910	}
		1911	}
		1912
		1913	void
1436	aio_busy (double delay, SV *callback=&PL_sv_undef)	1914	aio_busy (double delay, SV *callback = &PL_sv_undef)
1437	PPCODE:	1915	PPCODE:
1438	{	1916	{
1439	dREQ;	1917	dREQ;
1440		1918
1441	req->type = EIO_BUSY;	1919	req->type = EIO_BUSY;
…		…
1443		1921
1444	REQ_SEND;	1922	REQ_SEND;
1445	}	1923	}
1446		1924
1447	void	1925	void
1448	aio_group (SV *callback=&PL_sv_undef)	1926	aio_group (SV *callback = &PL_sv_undef)
1449	PPCODE:	1927	PPCODE:
1450	{	1928	{
1451	dREQ;	1929	dREQ;
1452		1930
1453	req->type = EIO_GROUP;	1931	req->type = EIO_GROUP;
1454		1932
		1933	PUTBACK;
1455	req_submit (req);	1934	req_submit (req);
		1935	SPAGAIN;
		1936
1456	XPUSHs (req_sv (req, aio_grp_stash));	1937	XPUSHs (req_sv (req, aio_grp_stash));
1457	}	1938	}
1458		1939
1459	void	1940	void
1460	aio_nop (SV *callback=&PL_sv_undef)	1941	aio_nop (SV *callback = &PL_sv_undef)
1461	ALIAS:	1942	ALIAS:
1462	aio_nop = EIO_NOP	1943	aio_nop = EIO_NOP
1463	aio_sync = EIO_SYNC	1944	aio_sync = EIO_SYNC
1464	PPCODE:	1945	PPCODE:
1465	{	1946	{
…		…
1469		1950
1470	REQ_SEND;	1951	REQ_SEND;
1471	}	1952	}
1472		1953
1473	int	1954	int
1474	aioreq_pri (int pri = 0)	1955	aioreq_pri (int pri = NO_INIT)
1475	CODE:	1956	CODE:
1476	RETVAL = next_pri;	1957	RETVAL = next_pri;
1477	if (items > 0)	1958	if (items > 0)
1478	{	1959	{
1479	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1960	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1561	CODE:	2042	CODE:
1562	RETVAL = posix_fadvise (fh, offset, length, advice);	2043	RETVAL = posix_fadvise (fh, offset, length, advice);
1563	OUTPUT:	2044	OUTPUT:
1564	RETVAL	2045	RETVAL
1565		2046
1566	ssize_t	2047	IV
1567	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	2048	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1568	CODE:	2049	CODE:
1569	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2050	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1570	OUTPUT:	2051	OUTPUT:
1571	RETVAL	2052	RETVAL
1572		2053
1573	void	2054	void
1574	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2055	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1575	PPCODE:	2056	PPCODE:
1576	sv_unmagic (scalar, MMAP_MAGIC);	2057	sv_clear_foreign (scalar);
1577	{	2058	{
1578	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2059	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1579	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2060	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1580	if (addr == (void *)-1)	2061	if (addr == (void *)-1)
1581	XSRETURN_NO;	2062	XSRETURN_NO;
1582		2063
1583	sv_force_normal (scalar);	2064	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		2065
1591	if (!(prot & PROT_WRITE))	2066	if (!(prot & PROT_WRITE))
1592	SvREADONLY_on (scalar);	2067	SvREADONLY_on (scalar);
1593		2068
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;	2069	XSRETURN_YES;
1603	}	2070	}
1604		2071
1605	void	2072	void
1606	munmap (SV *scalar)	2073	munmap (SV *scalar)
1607	CODE:	2074	CODE:
1608	sv_unmagic (scalar, MMAP_MAGIC);	2075	sv_clear_foreign (scalar);
		2076
		2077	SV *
		2078	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2079	CODE:
		2080	{
		2081	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2082	void *new;
		2083
		2084	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2085	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2086
		2087	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2088
		2089	RETVAL = &PL_sv_no;
		2090
		2091	if (new != (void *)-1)
		2092	{
		2093	RETVAL = new == (void *)mg->mg_ptr
		2094	? newSVpvn ("0 but true", 10)
		2095	: &PL_sv_yes;
		2096
		2097	mg->mg_ptr = (char *)new;
		2098	mg->mg_obj = (SV *)new_length;
		2099
		2100	SvPVX (scalar) = mg->mg_ptr;
		2101	SvCUR_set (scalar, new_length);
		2102	}
		2103	}
		2104	OUTPUT:
		2105	RETVAL
1609		2106
1610	int	2107	int
1611	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2108	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1612	ALIAS:	2109	ALIAS:
1613	mprotect = 1	2110	mprotect = 1
1614	CODE:	2111	CODE:
1615	{	2112	{
1616	STRLEN svlen;	2113	STRLEN svlen;
1617	void *addr = SvPVbyte (scalar, svlen);	2114	void *addr = SvPVbyte (scalar, svlen);
1618	size_t len = SvUV (length);	2115	STRLEN len = SvUV (length);
1619		2116
1620	if (offset < 0)	2117	if (offset < 0)
1621	offset += svlen;	2118	offset += svlen;
1622		2119
1623	if (offset < 0 || offset > svlen)	2120	if (offset < 0 || offset > svlen)
…		…
1637	}	2134	}
1638	OUTPUT:	2135	OUTPUT:
1639	RETVAL	2136	RETVAL
1640		2137
1641	int	2138	int
1642	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2139	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1643	CODE:	2140	CODE:
1644	{	2141	{
1645	STRLEN svlen;	2142	STRLEN svlen;
1646	void *addr = SvPVbyte (scalar, svlen);	2143	void *addr = SvPVbyte (scalar, svlen);
1647	size_t len = SvUV (length);	2144	size_t len = SvUV (length);
1648		2145
1649	if (offset < 0)	2146	if (offset < 0)
1650	offset += svlen;	2147	offset += svlen;
1651		2148
…		…
1658	addr = (void *)(((intptr_t)addr) + offset);	2155	addr = (void *)(((intptr_t)addr) + offset);
1659	eio_page_align (&addr, &len);	2156	eio_page_align (&addr, &len);
1660	#if _POSIX_MEMLOCK_RANGE	2157	#if _POSIX_MEMLOCK_RANGE
1661	RETVAL = munlock (addr, len);	2158	RETVAL = munlock (addr, len);
1662	#else	2159	#else
1663	RETVAL = ((errno = ENOSYS), -1);	2160	RETVAL = EIO_ENOSYS ();
1664	#endif	2161	#endif
1665	}	2162	}
1666	OUTPUT:	2163	OUTPUT:
1667	RETVAL	2164	RETVAL
1668		2165
…		…
1670	munlockall ()	2167	munlockall ()
1671	CODE:	2168	CODE:
1672	#if _POSIX_MEMLOCK	2169	#if _POSIX_MEMLOCK
1673	munlockall ();	2170	munlockall ();
1674	#else	2171	#else
1675	RETVAL = -1;	2172	RETVAL = EIO_ENOSYS ();
1676	errno = ENOSYS;
1677	#endif	2173	#endif
1678	OUTPUT:	2174	OUTPUT:
1679	RETVAL	2175	RETVAL
		2176
		2177	int
		2178	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2179	CODE:
		2180	{
		2181	#if HAVE_LINUX_SPLICE
		2182	loff_t off_in_, off_out_;
		2183	RETVAL = splice (
		2184	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2185	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2186	length, flags
		2187	);
		2188	#else
		2189	RETVAL = EIO_ENOSYS ();
		2190	#endif
		2191	}
		2192	OUTPUT:
		2193	RETVAL
		2194
		2195	int
		2196	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2197	CODE:
		2198	#if HAVE_LINUX_SPLICE
		2199	RETVAL = tee (rfh, wfh, length, flags);
		2200	#else
		2201	RETVAL = EIO_ENOSYS ();
		2202	#endif
		2203	OUTPUT:
		2204	RETVAL
		2205
		2206	int
		2207	pipesize (aio_rfd rfh, int new_size = -1)
		2208	PROTOTYPE: $;$
		2209	CODE:
		2210	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2211	if (new_size >= 0)
		2212	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2213	else
		2214	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2215	#else
		2216	errno = ENOSYS;
		2217	RETVAL = -1;
		2218	#endif
		2219	OUTPUT:
		2220	RETVAL
		2221
		2222	void
		2223	pipe2 (int flags = 0)
		2224	PROTOTYPE: ;$
		2225	PPCODE:
		2226	{
		2227	int fd[2];
		2228	int res;
		2229
		2230	if (flags)
		2231	#if HAVE_PIPE2
		2232	res = pipe2 (fd, flags);
		2233	#else
		2234	res = (errno = ENOSYS, -1);
		2235	#endif
		2236	else
		2237	res = pipe (fd);
		2238
		2239	if (!res)
		2240	{
		2241	EXTEND (SP, 2);
		2242	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2243	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2244	}
		2245	}
		2246
		2247	void
		2248	eventfd (unsigned int initval = 0, int flags = 0)
		2249	PPCODE:
		2250	{
		2251	int fd;
		2252	#if HAVE_EVENTFD
		2253	fd = eventfd (initval, flags);
		2254	#else
		2255	fd = (errno = ENOSYS, -1);
		2256	#endif
		2257
		2258	XPUSHs (newmortalFH (fd, O_RDWR));
		2259	}
		2260
		2261	void
		2262	timerfd_create (int clockid, int flags = 0)
		2263	PPCODE:
		2264	{
		2265	int fd;
		2266	#if HAVE_TIMERFD
		2267	fd = timerfd_create (clockid, flags);
		2268	#else
		2269	fd = (errno = ENOSYS, -1);
		2270	#endif
		2271
		2272	XPUSHs (newmortalFH (fd, O_RDWR));
		2273	}
		2274
		2275	void
		2276	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2277	PPCODE:
		2278	{
		2279	int fd = s_fileno_croak (fh, 0);
		2280	#if HAVE_TIMERFD
		2281	int res;
		2282	struct itimerspec its, ots;
		2283
		2284	ts_set (&its.it_interval, interval);
		2285	ts_set (&its.it_value , value);
		2286	res = timerfd_settime (fd, flags, &its, &ots);
		2287
		2288	if (!res)
		2289	{
		2290	EXTEND (SP, 2);
		2291	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2292	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2293	}
		2294	#else
		2295	errno = ENOSYS;
		2296	#endif
		2297	}
		2298
		2299	void
		2300	timerfd_gettime (SV *fh)
		2301	PPCODE:
		2302	{
		2303	int fd = s_fileno_croak (fh, 0);
		2304	#if HAVE_TIMERFD
		2305	int res;
		2306	struct itimerspec ots;
		2307	res = timerfd_gettime (fd, &ots);
		2308
		2309	if (!res)
		2310	{
		2311	EXTEND (SP, 2);
		2312	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2313	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2314	}
		2315	#else
		2316	errno = ENOSYS;
		2317	#endif
		2318	}
		2319
		2320	UV
		2321	get_fdlimit ()
		2322	CODE:
		2323	#if HAVE_RLIMITS
		2324	struct rlimit rl;
		2325	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2326	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2327	#endif
		2328	XSRETURN_UNDEF;
		2329	OUTPUT:
		2330	RETVAL
		2331
		2332	void
		2333	min_fdlimit (UV limit = 0x7fffffffU)
		2334	CODE:
		2335	{
		2336	#if HAVE_RLIMITS
		2337	struct rlimit rl;
		2338	rlim_t orig_rlim_max;
		2339	UV bit;
		2340
		2341	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2342	goto fail;
		2343
		2344	if (rl.rlim_cur == RLIM_INFINITY)
		2345	XSRETURN_YES;
		2346
		2347	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2348
		2349	if (rl.rlim_cur < limit)
		2350	{
		2351	rl.rlim_cur = limit;
		2352
		2353	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2354	rl.rlim_max = rl.rlim_cur;
		2355	}
		2356
		2357	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2358	XSRETURN_YES;
		2359
		2360	if (errno == EPERM)
		2361	{
		2362	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2363	/* our limit overflows a system-wide limit */
		2364	/* try an adaptive algorithm, but do not lower the hardlimit */
		2365	rl.rlim_max = 0;
		2366	for (bit = 0x40000000U; bit; bit >>= 1)
		2367	{
		2368	rl.rlim_max |= bit;
		2369	rl.rlim_cur = rl.rlim_max;
		2370
		2371	/* nevr decrease the hard limit */
		2372	if (rl.rlim_max < orig_rlim_max)
		2373	break;
		2374
		2375	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2376	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2377	}
		2378
		2379	/* now, raise the soft limit to the max permitted */
		2380	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2381	{
		2382	rl.rlim_cur = rl.rlim_max;
		2383	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2384	errno = EPERM;
		2385	}
		2386	}
		2387	#endif
		2388	fail:
		2389	XSRETURN_UNDEF;
		2390	}
1680		2391
1681	void _on_next_submit (SV *cb)	2392	void _on_next_submit (SV *cb)
1682	CODE:	2393	CODE:
1683	SvREFCNT_dec (on_next_submit);	2394	SvREFCNT_dec (on_next_submit);
1684	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2395	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1685		2396
1686	PROTOTYPES: DISABLE	2397	PROTOTYPES: DISABLE
1687		2398
		2399	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2400
		2401	BOOT:
		2402	{
		2403	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2404	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2405	}
		2406
		2407	void
		2408	DESTROY (SV *self)
		2409	CODE:
		2410	{
		2411	aio_wd wd = SvAIO_WD (self);
		2412	#if HAVE_AT
		2413	{
		2414	SV *callback = &PL_sv_undef;
		2415	dREQ; /* clobbers next_pri :/ */
		2416	next_pri = req->pri; /* restore next_pri */
		2417	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2418	req->type = EIO_WD_CLOSE;
		2419	req->wd = wd;
		2420	REQ_SEND;
		2421	}
		2422	#else
		2423	eio_wd_close_sync (wd);
		2424	#endif
		2425	}
		2426
1688	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2427	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1689		2428
1690	void	2429	void
1691	cancel (aio_req_ornot req)	2430	cancel (aio_req_ornot req)
1692	CODE:	2431	CODE:
1693	eio_cancel (req);	2432	eio_cancel (req);
1694		2433
1695	void	2434	void
1696	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2435	cb (aio_req_ornot req, SV *callback = NO_INIT)
1697	PPCODE:	2436	PPCODE:
1698	{	2437	{
1699	if (GIMME_V != G_VOID)	2438	if (GIMME_V != G_VOID)
1700	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2439	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1701		2440
1702	if (items > 1)	2441	if (items > 1)
1703	{	2442	{
1704	SV *cb_cv =get_cb (callback);	2443	SV *cb_cv = get_cb (callback);
1705		2444
1706	SvREFCNT_dec (req->callback);	2445	SvREFCNT_dec (req->callback);
1707	req->callback = SvREFCNT_inc (cb_cv);	2446	req->callback = SvREFCNT_inc (cb_cv);
1708	}	2447	}
1709	}	2448	}
…		…
1766	limit (aio_req grp, int limit)	2505	limit (aio_req grp, int limit)
1767	CODE:	2506	CODE:
1768	eio_grp_limit (grp, limit);	2507	eio_grp_limit (grp, limit);
1769		2508
1770	void	2509	void
1771	feed (aio_req grp, SV *callback=&PL_sv_undef)	2510	feed (aio_req grp, SV *callback = &PL_sv_undef)
1772	CODE:	2511	CODE:
1773	{	2512	{
1774	SvREFCNT_dec (grp->sv2);	2513	SvREFCNT_dec (grp->sv2);
1775	grp->sv2 = newSVsv (callback);	2514	grp->sv2 = newSVsv (callback);
1776	grp->feed = aio_grp_feed;	2515	grp->feed = aio_grp_feed;

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