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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.187 by root, Sat Jul 16 16:46:10 2011 UTC vs.
Revision 1.253 by root, Tue Feb 20 04:32:59 2018 UTC

…		…
19		19
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	21	# include <sys/mman.h>
22	#endif	22	#endif
23		23
		24	/* the incompetent fool that created musl keeps __linux__, refuses
		25	* to implement any linux standard apis, and also has no way to test
		26	* for his broken iplementation. don't complain to me if this fails
		27	* for you.
		28	*/
		29	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		30	# include <linux/fs.h>
		31	# ifdef FS_IOC_FIEMAP
		32	# include <linux/types.h>
		33	# include <linux/fiemap.h>
		34	# define HAVE_FIEMAP 1
		35	# endif
		36	#endif
		37
24	/* perl namespace pollution */	38	/* perl namespace pollution */
25	#undef VERSION	39	#undef VERSION
26		40
27	/* perl stupidly overrides readdir and maybe others */	41	/* perl stupidly overrides readdir and maybe others */
28	/* with thread-unsafe versions, imagine that :( */	42	/* with thread-unsafe versions, imagine that :( */
…		…
30	#undef opendir	44	#undef opendir
31	#undef closedir	45	#undef closedir
32		46
33	#ifdef _WIN32	47	#ifdef _WIN32
34		48
35	# define EIO_STRUCT_DIRENT Direntry_t
36	# undef malloc
37	# undef free
38
39	// perl overrides all those nice win32 functions	49	// perl overrides all those nice libc functions
		50
		51	#undef malloc
		52	#undef free
40	# undef open	53	#undef open
41	# undef read	54	#undef read
42	# undef write	55	#undef write
43	# undef send	56	#undef send
44	# undef recv	57	#undef recv
		58	#undef stat
45	# undef lstat	59	#undef lstat
		60	#undef fstat
46	# undef truncate	61	#undef truncate
47	# undef ftruncate	62	#undef ftruncate
48	# undef open	63	#undef open
49	# undef link	64	#undef link
50	# undef close	65	#undef close
51	# undef unlink	66	#undef unlink
52	# undef mkdir	67	#undef mkdir
53	# undef rmdir	68	#undef rmdir
54	# undef rename	69	#undef rename
55	# undef lseek	70	#undef lseek
56	# undef opendir	71	#undef opendir
57	# undef readdir	72	#undef readdir
58	# undef closedir	73	#undef closedir
59	# undef chmod	74	#undef chmod
60	# undef fchmod	75	#undef fchmod
		76	#undef dup
		77	#undef dup2
		78	#undef abort
		79	#undef pipe
61		80
62	# define opendir(fd) EIO_ERRNO (ENOSYS, 0)	81	#define EIO_STRUCT_STAT struct _stati64
63	# define readdir(fd) EIO_ENOSYS ()	82	#define EIO_STRUCT_STATI64
64	# define closedir(fd) EIO_ENOSYS ()
65		83
66	#else	84	#else
67		85
68	# include <sys/time.h>	86	#include <sys/time.h>
69	# include <sys/select.h>	87	#include <sys/select.h>
70	# include <unistd.h>	88	#include <unistd.h>
71	# include <utime.h>	89	#include <utime.h>
72	# include <signal.h>	90	#include <signal.h>
73		91
74	#endif
75
76	#define EIO_STRUCT_STAT Stat_t	92	#define EIO_STRUCT_STAT Stat_t
77		93
78	/* use NV for 32 bit perls as it allows larger offsets */
79	#if IVSIZE >= 8
80	# define VAL64 IV
81	# define SvVAL64 SvIV
82	# define newSVval64 newSViv
83	#else
84	# define VAL64 NV
85	# define SvVAL64 SvNV
86	# define newSVval64 newSVnv
87	#endif	94	#endif
88		95
89	/*****************************************************************************/	96	/*****************************************************************************/
90		97
91	#if __GNUC__ >= 3	98	#if __GNUC__ >= 3
…		…
97	#define expect_false(expr) expect ((expr) != 0, 0)	104	#define expect_false(expr) expect ((expr) != 0, 0)
98	#define expect_true(expr) expect ((expr) != 0, 1)	105	#define expect_true(expr) expect ((expr) != 0, 1)
99		106
100	/*****************************************************************************/	107	/*****************************************************************************/
101		108
		109	#include "libeio/config.h"
		110
		111	#if HAVE_EVENTFD
		112	# include <sys/eventfd.h>
		113	#endif
		114
		115	#if HAVE_RLIMITS
		116	#include <sys/time.h>
		117	#include <sys/resource.h>
		118	#endif
		119
102	typedef SV SV8; /* byte-sv, used for argument-checking */	120	typedef SV SV8; /* byte-sv, used for argument-checking */
103	typedef int aio_rfd; /* read file desriptor */	121	typedef int aio_rfd; /* read file desriptor */
104	typedef int aio_wfd; /* write file descriptor */	122	typedef int aio_wfd; /* write file descriptor */
105		123
106	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	124	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
107		125
108	#define EIO_REQ_MEMBERS \	126	#define EIO_REQ_MEMBERS \
109	SV *callback; \	127	SV *callback; \
110	SV *sv1, *sv2; \	128	SV *sv1, *sv2; \
		129	SV *sv3, *sv4; \
111	STRLEN stroffset; \	130	STRLEN stroffset; \
112	SV *self;	131	SV *self;
113		132
114	#define EIO_NO_WRAPPERS 1	133	#define EIO_NO_WRAPPERS 1
115		134
116	#include "libeio/config.h"
117	#include "libeio/eio.h"	135	#include "libeio/eio.h"
118		136
119	/* Linux/others */	137	static int req_invoke (eio_req *req);
120	#ifndef O_ASYNC	138	#define EIO_FINISH(req) req_invoke (req)
121	# define O_ASYNC 0	139	static void req_destroy (eio_req *grp);
122	#endif	140	#define EIO_DESTROY(req) req_destroy (req)
123	#ifndef O_DIRECT
124	# define O_DIRECT 0
125	#endif
126	#ifndef O_NOATIME
127	# define O_NOATIME 0
128	#endif
129		141
130	/* POSIX */	142	#include "libeio/eio.c"
131	#ifndef O_CLOEXEC
132	# define O_CLOEXEC 0
133	#endif
134	#ifndef O_NOFOLLOW
135	# define O_NOFOLLOW 0
136	#endif
137	#ifndef O_NOCTTY
138	# define O_NOCTTY 0
139	#endif
140	#ifndef O_NONBLOCK
141	# define O_NONBLOCK 0
142	#endif
143	#ifndef O_EXEC
144	# define O_EXEC 0
145	#endif
146	#ifndef O_SEARCH
147	# define O_SEARCH 0
148	#endif
149	#ifndef O_DIRECTORY
150	# define O_DIRECTORY 0
151	#endif
152	#ifndef O_DSYNC
153	# define O_DSYNC 0
154	#endif
155	#ifndef O_RSYNC
156	# define O_RSYNC 0
157	#endif
158	#ifndef O_SYNC
159	# define O_SYNC 0
160	#endif
161	#ifndef O_TTY_INIT
162	# define O_TTY_INIT 0
163	#endif
164
165	#ifndef POSIX_FADV_NORMAL
166	# define POSIX_FADV_NORMAL 0
167	#endif
168	#ifndef POSIX_FADV_SEQUENTIAL
169	# define POSIX_FADV_SEQUENTIAL 0
170	#endif
171	#ifndef POSIX_FADV_RANDOM
172	# define POSIX_FADV_RANDOM 0
173	#endif
174	#ifndef POSIX_FADV_NOREUSE
175	# define POSIX_FADV_NOREUSE 0
176	#endif
177	#ifndef POSIX_FADV_WILLNEED
178	# define POSIX_FADV_WILLNEED 0
179	#endif
180	#ifndef POSIX_FADV_DONTNEED
181	# define POSIX_FADV_DONTNEED 0
182	#endif
183		143
184	#if !HAVE_POSIX_FADVISE	144	#if !HAVE_POSIX_FADVISE
185	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	145	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
186	#endif	146	#endif
187		147
188	#ifndef POSIX_MADV_NORMAL
189	# define POSIX_MADV_NORMAL 0
190	#endif
191	#ifndef POSIX_MADV_SEQUENTIAL
192	# define POSIX_MADV_SEQUENTIAL 0
193	#endif
194	#ifndef POSIX_MADV_RANDOM
195	# define POSIX_MADV_RANDOM 0
196	#endif
197	#ifndef POSIX_MADV_WILLNEED
198	# define POSIX_MADV_WILLNEED 0
199	#endif
200	#ifndef POSIX_MADV_DONTNEED
201	# define POSIX_MADV_DONTNEED 0
202	#endif
203
204	#if !HAVE_POSIX_MADVISE	148	#if !HAVE_POSIX_MADVISE
205	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	149	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
206	#endif
207
208	#ifndef PROT_NONE
209	# define PROT_NONE 0
210	#endif
211	#ifndef PROT_READ
212	# define PROT_READ 0
213	#endif
214	#ifndef PROT_WRITE
215	# define PROT_READ 0
216	#endif
217	#ifndef PROT_EXEC
218	# define PROT_EXEC 0
219	#endif
220
221	#ifndef ST_RDONLY
222	# define ST_RDONLY 0
223	#endif
224	#ifndef ST_NOSUID
225	# define ST_NOSUID 0
226	#endif
227	#ifndef ST_NODEV
228	# define ST_NODEV 0
229	#endif
230	#ifndef ST_NOEXEC
231	# define ST_NOEXEC 0
232	#endif
233	#ifndef ST_SYNCHRONOUS
234	# define ST_SYNCHRONOUS 0
235	#endif
236	#ifndef ST_MANDLOCK
237	# define ST_MANDLOCK 0
238	#endif
239	#ifndef ST_WRITE
240	# define ST_WRITE 0
241	#endif
242	#ifndef ST_APPEND
243	# define ST_APPEND 0
244	#endif
245	#ifndef ST_IMMUTABLE
246	# define ST_IMMUTABLE 0
247	#endif
248	#ifndef ST_NOATIME
249	# define ST_NOATIME 0
250	#endif
251	#ifndef ST_NODIRATIME
252	# define ST_NODIRATIME 0
253	#endif
254	#ifndef ST_RELATIME
255	# define ST_RELATIME 0
256	#endif
257
258	#ifndef S_IFIFO
259	# define S_IFIFO 0
260	#endif
261	#ifndef S_IFCHR
262	# define S_IFCHR 0
263	#endif
264	#ifndef S_IFBLK
265	# define S_IFBLK 0
266	#endif
267	#ifndef S_IFLNK
268	# define S_IFLNK 0
269	#endif
270	#ifndef S_IFREG
271	# define S_IFREG 0
272	#endif
273	#ifndef S_IFDIR
274	# define S_IFDIR 0
275	#endif
276	#ifndef S_IFWHT
277	# define S_IFWHT 0
278	#endif
279	#ifndef S_IFSOCK
280	# define S_IFSOCK 0
281	#endif	150	#endif
282		151
283	#ifndef MAP_ANONYMOUS	152	#ifndef MAP_ANONYMOUS
284	# ifdef MAP_ANON	153	# ifdef MAP_ANON
285	# define MAP_ANONYMOUS MAP_ANON	154	# define MAP_ANONYMOUS MAP_ANON
286	# else	155	# else
287	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	156	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
288	# endif	157	# endif
289	#endif	158	#endif
290	#ifndef MAP_HUGETLB	159
291	# define MAP_HUGETLB 0	160	/* defines all sorts of constants to 0 unless they are already defined */
292	#endif	161	/* also provides const_iv_ and const_niv_ macros for them */
293	#ifndef MAP_LOCKED	162	#include "def0.h"
294	# define MAP_LOCKED 0
295	#endif
296	#ifndef MAP_NORESERVE
297	# define MAP_NORESERVE 0
298	#endif
299	#ifndef MAP_POPULATE
300	# define MAP_POPULATE 0
301	#endif
302	#ifndef MAP_NONBLOCK
303	# define MAP_NONBLOCK 0
304	#endif
305		163
306	#ifndef makedev	164	#ifndef makedev
307	# define makedev(maj,min) (((maj) << 8) | (min))	165	# define makedev(maj,min) (((maj) << 8) | (min))
308	#endif	166	#endif
309	#ifndef major	167	#ifndef major
…		…
311	#endif	169	#endif
312	#ifndef minor	170	#ifndef minor
313	# define minor(dev) ((dev) & 0xff)	171	# define minor(dev) ((dev) & 0xff)
314	#endif	172	#endif
315		173
316	#ifndef PAGESIZE	174	#if PAGESIZE <= 0
317	# define PAGESIZE sysconf (_SC_PAGESIZE)	175	# define PAGESIZE sysconf (_SC_PAGESIZE)
318	#endif	176	#endif
319		177
320	static int req_invoke (eio_req *req);	178	/*****************************************************************************/
321	#define EIO_FINISH(req) req_invoke (req)	179
322	static void req_destroy (eio_req *grp);	180	#if !_POSIX_MAPPED_FILES
323	#define EIO_DESTROY(req) req_destroy (req)	181	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		182	# define munmap(addr,length) EIO_ENOSYS ()
		183	#endif
		184
		185	#if !_POSIX_MEMORY_PROTECTION
		186	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		187	#endif
		188
		189	#define FOREIGN_MAGIC PERL_MAGIC_ext
		190
		191	static int ecb_cold
		192	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		193	{
		194	int old_errno = errno;
		195	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		196	errno = old_errno;
		197
		198	mg->mg_obj = 0; /* just in case */
		199
		200	SvREADONLY_off (sv);
		201
		202	if (SvPVX (sv) != mg->mg_ptr)
		203	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		204
		205	SvCUR_set (sv, 0);
		206	SvPVX (sv) = 0;
		207	SvOK_off (sv);
		208
		209	return 0;
		210	}
		211
		212	static MGVTBL mmap_vtbl = {
		213	0, 0, 0, 0, mmap_free
		214	};
		215
		216	static int ecb_cold
		217	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		218	{
		219	free (mg->mg_ptr);
		220	mg->mg_obj = 0; /* just in case */
		221
		222	SvREADONLY_off (sv);
		223
		224	if (SvPVX (sv) != mg->mg_ptr)
		225	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		226
		227	SvCUR_set (sv, 0);
		228	SvPVX (sv) = 0;
		229	SvOK_off (sv);
		230
		231	return 0;
		232	}
		233
		234	static MGVTBL sysfree_vtbl = {
		235	0, 0, 0, 0, sysfree_free
		236	};
		237
		238	/*****************************************************************************/
		239
		240	/* helper: set scalar to foreign ptr with custom free */
		241	static void
		242	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		243	{
		244	sv_force_normal (sv);
		245
		246	/* we store the length in mg_obj, as namlen is I32 :/ */
		247	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		248	->mg_obj = (SV *)length;
		249
		250	SvUPGRADE (sv, SVt_PV); /* nop... */
		251
		252	if (SvLEN (sv))
		253	Safefree (SvPVX (sv));
		254
		255	SvPVX (sv) = (char *)addr;
		256	SvCUR_set (sv, length);
		257	SvLEN_set (sv, 0);
		258	SvPOK_only (sv);
		259	}
		260
		261	static void
		262	sv_clear_foreign (SV *sv)
		263	{
		264	/* todo: iterate over magic and only free ours, but of course */
		265	/* the perl5porters will call that (correct) behaviour buggy */
		266	sv_unmagic (sv, FOREIGN_MAGIC);
		267	}
		268
		269	/*****************************************************************************/
		270
		271	static void
		272	fiemap (eio_req *req)
		273	{
		274	req->result = -1;
		275
		276	#if HAVE_FIEMAP
		277	/* assume some c99 */
		278	struct fiemap *fiemap = 0;
		279	size_t end_offset;
		280	int count = req->int3;
		281
		282	req->flags |= EIO_FLAG_PTR1_FREE;
		283
		284	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		285	/* increase in 3.5kb steps */
		286	if (count < 0)
		287	count = 8;
		288
		289	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		290	errno = ENOMEM;
		291	if (!fiemap)
		292	return;
		293
		294	req->ptr1 = fiemap;
		295
		296	fiemap->fm_start = req->offs;
		297	fiemap->fm_length = req->size;
		298	fiemap->fm_flags = req->int2;
		299	fiemap->fm_extent_count = count;
		300
		301	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		302	return;
		303
		304	if (req->int3 >= 0 /* not autosizing */
		305	|| !fiemap->fm_mapped_extents /* no more extents */
		306	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		307	goto done;
		308
		309	/* else we have to loop -
		310	* it would be tempting (actually I tried that first) to just query the
		311	* number of extents needed, but linux often feels like not returning all
		312	* extents, without telling us it left any out. this complicates
		313	* this quite a bit.
		314	*/
		315
		316	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		317
		318	for (;;)
		319	{
		320	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		321	char scratch[3072];
		322	struct fiemap *incmap = (struct fiemap *)scratch;
		323
		324	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		325	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		326	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		327	incmap->fm_flags = fiemap->fm_flags;
		328	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		329
		330	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		331	return;
		332
		333	if (!incmap->fm_mapped_extents)
		334	goto done;
		335
		336	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		337	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		338	errno = ENOMEM;
		339	if (!fiemap)
		340	return;
		341
		342	req->ptr1 = fiemap;
		343
		344	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		345	{
		346	struct fiemap_extent *e = incmap->fm_extents + count;
		347
		348	if (e->fe_logical + e->fe_length >= end_offset)
		349	goto done;
		350
		351	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		352
		353	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		354	goto done;
		355
		356	}
		357	}
		358
		359	done:
		360	req->result = 0;
		361
		362	#else
		363	errno = ENOSYS;
		364	#endif
		365	}
		366
		367	/*****************************************************************************/
324		368
325	enum {	369	enum {
326	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	370	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
327	};	371	};
328		372
329	#include "libeio/eio.c"
330
331	typedef eio_req *aio_req;	373	typedef eio_req *aio_req;
332	typedef eio_req *aio_req_ornot;	374	typedef eio_req *aio_req_ornot;
		375	typedef eio_wd aio_wd;
333		376
334	static SV *on_next_submit;	377	static SV *on_next_submit;
335	static int next_pri = EIO_PRI_DEFAULT;	378	static int next_pri = EIO_PRI_DEFAULT;
336	static int max_outstanding;	379	static int max_outstanding;
337		380
338	static s_epipe respipe;	381	static s_epipe respipe;
339		382
340	static void req_destroy (aio_req req);	383	static void req_destroy (aio_req req);
341	static void req_cancel (aio_req req);	384	static void req_cancel (aio_req req);
342		385
343	static void want_poll (void)	386	static void
		387	want_poll (void)
344	{	388	{
345	/* write a dummy byte to the pipe so fh becomes ready */	389	/* write a dummy byte to the pipe so fh becomes ready */
346	s_epipe_signal (&respipe);	390	s_epipe_signal (&respipe);
347	}	391	}
348		392
349	static void done_poll (void)	393	static void
		394	done_poll (void)
350	{	395	{
351	/* read any signals sent by the worker threads */	396	/* read any signals sent by the worker threads */
352	s_epipe_drain (&respipe);	397	s_epipe_drain (&respipe);
353	}	398	}
354		399
355	/* must be called at most once */	400	/* must be called at most once */
		401	static SV *
356	static SV *req_sv (aio_req req, HV *stash)	402	req_sv (aio_req req, HV *stash)
357	{	403	{
358	if (!req->self)	404	if (!req->self)
359	{	405	{
360	req->self = (SV *)newHV ();	406	req->self = (SV *)newHV ();
361	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	407	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
362	}	408	}
363		409
364	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	410	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
365	}	411	}
366		412
367	static aio_req SvAIO_REQ (SV *sv)	413	static SV *
		414	newSVaio_wd (aio_wd wd)
		415	{
		416	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		417	}
		418
		419	static aio_req
		420	SvAIO_REQ (SV *sv)
368	{	421	{
369	MAGIC *mg;	422	MAGIC *mg;
370		423
371	if (!SvROK (sv)	424	if (!SvROK (sv)
		425	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
372	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	426	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
373	&& SvSTASH (SvRV (sv)) != aio_req_stash	427	&& SvSTASH (SvRV (sv)) != aio_req_stash
374	&& !sv_derived_from (sv, "IO::AIO::REQ")))	428	&& !sv_derived_from (sv, "IO::AIO::REQ")))
375	croak ("object of class IO::AIO::REQ expected");	429	croak ("object of class IO::AIO::REQ expected");
376		430
377	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	431	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
378		432
379	return mg ? (aio_req)mg->mg_ptr : 0;	433	return mg ? (aio_req)mg->mg_ptr : 0;
380	}	434	}
381		435
		436	static aio_wd
		437	SvAIO_WD (SV *sv)
		438	{
		439	if (!SvROK (sv)
		440	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		441	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		442	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		443
		444	return (aio_wd)(long)SvIVX (SvRV (sv));
		445	}
		446
		447	static SV *
		448	newmortalFH (int fd, int flags)
		449	{
		450	if (fd < 0)
		451	return &PL_sv_undef;
		452
		453	GV *gv = (GV *)sv_newmortal ();
		454	char sym[64];
		455	int symlen;
		456
		457	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		458	gv_init (gv, aio_stash, sym, symlen, 0);
		459
		460	symlen = snprintf (
		461	sym,
		462	sizeof (sym),
		463	"%s&=%d",
		464	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		465	fd
		466	);
		467
		468	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		469	? (SV *)gv : &PL_sv_undef;
		470	}
		471
		472	static void
382	static void aio_grp_feed (aio_req grp)	473	aio_grp_feed (aio_req grp)
383	{	474	{
384	if (grp->sv2 && SvOK (grp->sv2))	475	if (grp->sv2 && SvOK (grp->sv2))
385	{	476	{
386	dSP;	477	dSP;
387		478
…		…
395	FREETMPS;	486	FREETMPS;
396	LEAVE;	487	LEAVE;
397	}	488	}
398	}	489	}
399		490
		491	static void
400	static void req_submit (eio_req *req)	492	req_submit (eio_req *req)
401	{	493	{
402	eio_submit (req);	494	eio_submit (req);
403		495
404	if (expect_false (on_next_submit))	496	if (expect_false (on_next_submit))
405	{	497	{
…		…
412	PUTBACK;	504	PUTBACK;
413	call_sv (cb, G_DISCARD | G_EVAL);	505	call_sv (cb, G_DISCARD | G_EVAL);
414	}	506	}
415	}	507	}
416		508
		509	static int
417	static int req_invoke (eio_req *req)	510	req_invoke (eio_req *req)
418	{	511	{
419	if (req->flags & FLAG_SV2_RO_OFF)	512	if (req->flags & FLAG_SV2_RO_OFF)
420	SvREADONLY_off (req->sv2);	513	SvREADONLY_off (req->sv2);
421		514
422	if (!EIO_CANCELLED (req) && req->callback)	515	if (!EIO_CANCELLED (req) && req->callback)
…		…
443	SvREADONLY_on (sv_result);	536	SvREADONLY_on (sv_result);
444	}	537	}
445		538
446	switch (req->type)	539	switch (req->type)
447	{	540	{
		541	case EIO_WD_OPEN:
		542	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		543	break;
		544
448	case EIO_READDIR:	545	case EIO_READDIR:
449	{	546	{
450	SV *rv = &PL_sv_undef;	547	SV *rv = &PL_sv_undef;
451		548
452	if (req->result >= 0)	549	if (req->result >= 0)
…		…
505	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	602	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
506	}	603	}
507	break;	604	break;
508		605
509	case EIO_OPEN:	606	case EIO_OPEN:
510	{	607	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
511	/* convert fd to fh */
512	SV *fh = &PL_sv_undef;
513
514	if (req->result >= 0)
515	{
516	GV *gv = (GV *)sv_newmortal ();
517	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
518	char sym [64];
519	int symlen;
520
521	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
522	gv_init (gv, aio_stash, sym, symlen, 0);
523
524	symlen = snprintf (
525	sym,
526	sizeof (sym),
527	"%s&=%d",
528	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
529	(int)req->result
530	);
531
532	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
533	fh = (SV *)gv;
534	}
535
536	PUSHs (fh);
537	}
538	break;	608	break;
539		609
540	case EIO_STATVFS:	610	case EIO_STATVFS:
541	case EIO_FSTATVFS:	611	case EIO_FSTATVFS:
542	{	612	{
…		…
545	#ifndef _WIN32	615	#ifndef _WIN32
546	if (req->result >= 0)	616	if (req->result >= 0)
547	{	617	{
548	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	618	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
549	HV *hv = newHV ();	619	HV *hv = newHV ();
		620	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		621	* chooses to make it a struct.
		622	*/
		623	unsigned long fsid = 0;
		624	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
550		625
551	rv = sv_2mortal (newRV_noinc ((SV *)hv));	626	rv = sv_2mortal (newRV_noinc ((SV *)hv));
552		627
553	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	628	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);	629	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);	631	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);	632	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);	633	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);	634	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);	635	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);	636	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
562	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	637	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);	638	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
564	}	639	}
565	#endif	640	#endif
566		641
…		…
594	break;	669	break;
595		670
596	case EIO_STAT:	671	case EIO_STAT:
597	case EIO_LSTAT:	672	case EIO_LSTAT:
598	case EIO_FSTAT:	673	case EIO_FSTAT:
599	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	674	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		675
600	PL_laststatval = req->result;	676	if (!(PL_laststatval = req->result))
		677	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
601	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	678	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		679
602	PUSHs (sv_result);	680	PUSHs (sv_result);
		681	break;
		682
		683	case EIO_SEEK:
		684	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
603	break;	685	break;
604		686
605	case EIO_READ:	687	case EIO_READ:
606	{	688	{
607	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	689	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
610	SvSETMAGIC (req->sv2);	692	SvSETMAGIC (req->sv2);
611	PUSHs (sv_result);	693	PUSHs (sv_result);
612	}	694	}
613	break;	695	break;
614		696
		697	case EIO_SLURP:
		698	{
		699	if (req->result >= 0)
		700	{
		701	/* if length was originally not known, we steal the malloc'ed memory */
		702	if (req->flags & EIO_FLAG_PTR2_FREE)
		703	{
		704	req->flags &= ~EIO_FLAG_PTR2_FREE;
		705	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		706	}
		707	else
		708	{
		709	SvCUR_set (req->sv2, req->result);
		710	*SvEND (req->sv2) = 0;
		711	SvPOK_only (req->sv2);
		712	}
		713
		714	SvSETMAGIC (req->sv2);
		715	}
		716
		717	PUSHs (sv_result);
		718	}
		719	break;
		720
		721	case EIO_CUSTOM:
		722	if (req->feed == fiemap)
		723	{
		724	#if HAVE_FIEMAP
		725	if (!req->result)
		726	{
		727	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		728
		729	if (fiemap->fm_extent_count)
		730	{
		731	AV *av = newAV ();
		732	int i;
		733
		734	while (fiemap->fm_mapped_extents)
		735	{
		736	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		737	AV *ext_av = newAV ();
		738
		739	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		740	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		741	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		742	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		743
		744	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		745	}
		746
		747	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		748	}
		749	else
		750	{
		751	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		752	PUSHs (sv_result);
		753	}
		754	}
		755	#endif
		756	}
		757	else
		758	PUSHs (sv_result);
		759	break;
		760
615	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	761	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
616	if (req->result > 0)	762	if (req->result > 0)
617	SvIV_set (sv_result, 0);	763	SvIV_set (sv_result, 0);
618	/* FALLTHROUGH */	764	/* FALLTHROUGH */
619		765
…		…
640	}	786	}
641		787
642	return !!SvTRUE (ERRSV);	788	return !!SvTRUE (ERRSV);
643	}	789	}
644		790
		791	static void
645	static void req_destroy (aio_req req)	792	req_destroy (aio_req req)
646	{	793	{
647	if (req->self)	794	if (req->self)
648	{	795	{
649	sv_unmagic (req->self, PERL_MAGIC_ext);	796	sv_unmagic (req->self, PERL_MAGIC_ext);
650	SvREFCNT_dec (req->self);	797	SvREFCNT_dec (req->self);
651	}	798	}
652		799
653	SvREFCNT_dec (req->sv1);	800	SvREFCNT_dec (req->sv1);
654	SvREFCNT_dec (req->sv2);	801	SvREFCNT_dec (req->sv2);
		802	SvREFCNT_dec (req->sv3);
		803	SvREFCNT_dec (req->sv4);
655	SvREFCNT_dec (req->callback);	804	SvREFCNT_dec (req->callback);
656		805
657	Safefree (req);	806	free (req);
658	}	807	}
659		808
		809	static void
660	static void req_cancel_subs (aio_req grp)	810	req_cancel_subs (aio_req grp)
661	{	811	{
662	aio_req sub;
663
664	if (grp->type != EIO_GROUP)	812	if (grp->type != EIO_GROUP)
665	return;	813	return;
666		814
667	SvREFCNT_dec (grp->sv2);	815	SvREFCNT_dec (grp->sv2);
668	grp->sv2 = 0;	816	grp->sv2 = 0;
669		817
670	eio_grp_cancel (grp);	818	eio_grp_cancel (grp);
671	}	819	}
672		820
		821	static void ecb_cold
673	static void create_respipe (void)	822	create_respipe (void)
674	{	823	{
675	if (s_epipe_renew (&respipe))	824	if (s_epipe_renew (&respipe))
676	croak ("IO::AIO: unable to initialize result pipe");	825	croak ("IO::AIO: unable to initialize result pipe");
677	}	826	}
678		827
679	static void poll_wait (void)	828	static void
		829	poll_wait (void)
680	{	830	{
681	while (eio_nreqs ())	831	while (eio_nreqs ())
682	{	832	{
683	int size;	833	int size;
684		834
685	X_LOCK (reslock);	835	X_LOCK (EIO_POOL->reslock);
686	size = res_queue.size;	836	size = EIO_POOL->res_queue.size;
687	X_UNLOCK (reslock);	837	X_UNLOCK (EIO_POOL->reslock);
688		838
689	if (size)	839	if (size)
690	return;	840	return;
691		841
692	etp_maybe_start_thread ();	842	etp_maybe_start_thread (EIO_POOL);
693		843
694	s_epipe_wait (&respipe);	844	s_epipe_wait (&respipe);
695	}	845	}
696	}	846	}
697		847
698	static int poll_cb (void)	848	static int
		849	poll_cb (void)
699	{	850	{
700	for (;;)	851	for (;;)
701	{	852	{
702	int res = eio_poll ();	853	int res = eio_poll ();
703		854
…		…
709		860
710	poll_wait ();	861	poll_wait ();
711	}	862	}
712	}	863	}
713		864
714	static void atfork_child (void)	865	static void ecb_cold
		866	reinit (void)
715	{	867	{
716	create_respipe ();	868	create_respipe ();
		869
		870	if (eio_init (want_poll, done_poll) < 0)
		871	croak ("IO::AIO: unable to initialise eio library");
717	}	872	}
718		873
719	/*****************************************************************************/	874	/*****************************************************************************/
720		875
721	#if !_POSIX_MAPPED_FILES	876	static SV *
722	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
723	# define munmap(addr,length) (errno = ENOSYS, -1)
724	#endif
725
726	#if !_POSIX_MEMORY_PROTECTION
727	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
728	# define PROT_NONE 0
729	# define PROT_WRITE 0
730	# define MAP_PRIVATE 0
731	# define MAP_SHARED 0
732	# define MAP_FIXED 0
733	#endif
734
735	#define MMAP_MAGIC PERL_MAGIC_ext
736
737	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
738	{
739	int old_errno = errno;
740	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
741	errno = old_errno;
742
743	mg->mg_obj = 0; /* just in case */
744
745	SvREADONLY_off (sv);
746
747	if (SvPVX (sv) != mg->mg_ptr)
748	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
749
750	SvCUR_set (sv, 0);
751	SvPVX (sv) = 0;
752	SvOK_off (sv);
753
754	return 0;
755	}
756
757	static MGVTBL mmap_vtbl = {
758	0, 0, 0, 0, mmap_free
759	};
760
761	/*****************************************************************************/
762
763	static SV * get_cb (SV *cb_sv)	877	get_cb (SV *cb_sv)
764	{	878	{
765	SvGETMAGIC (cb_sv);	879	SvGETMAGIC (cb_sv);
766	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	880	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
767	}	881	}
768		882
		883	static aio_req ecb_noinline
		884	dreq (SV *callback)
		885	{
		886	SV *cb_cv;
		887	aio_req req;
		888	int req_pri = next_pri;
		889	next_pri = EIO_PRI_DEFAULT;
		890
		891	cb_cv = get_cb (callback);
		892
		893	req = calloc (sizeof (*req), 1);
		894	if (!req)
		895	croak ("out of memory during eio_req allocation");
		896
		897	req->callback = SvREFCNT_inc (cb_cv);
		898	req->pri = req_pri;
		899
		900	return req;
		901	}
		902
769	#define dREQ \	903	#define dREQ \
770	SV *cb_cv; \	904	aio_req req = dreq (callback); \
771	aio_req req; \
772	int req_pri = next_pri; \
773	next_pri = EIO_PRI_DEFAULT; \
774	\
775	cb_cv = get_cb (callback); \
776	\
777	Newz (0, req, 1, eio_req); \
778	if (!req) \
779	croak ("out of memory during eio_req allocation"); \
780	\
781	req->callback = SvREFCNT_inc (cb_cv); \
782	req->pri = req_pri
783		905
784	#define REQ_SEND \	906	#define REQ_SEND \
785	PUTBACK; \	907	PUTBACK; \
786	req_submit (req); \	908	req_submit (req); \
787	SPAGAIN; \	909	SPAGAIN; \
788	\	910	\
789	if (GIMME_V != G_VOID) \	911	if (GIMME_V != G_VOID) \
790	XPUSHs (req_sv (req, aio_req_stash));	912	XPUSHs (req_sv (req, aio_req_stash));
791		913
		914	ecb_inline void
		915	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		916	{
		917	if (expect_false (SvROK (path)))
		918	{
		919	SV *rv = SvRV (path);
		920	SV *wdob;
		921
		922	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		923	{
		924	path = AvARRAY (rv)[1];
		925	wdob = AvARRAY (rv)[0];
		926
		927	if (SvOK (wdob))
		928	{
		929	*wd = SvAIO_WD (wdob);
		930	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		931	}
		932	else
		933	*wd = EIO_INVALID_WD;
		934	}
		935	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		936	{
		937	*wd = (aio_wd)(long)SvIVX (rv);
		938	*wdsv = SvREFCNT_inc_NN (rv);
		939	*ptr = ".";
		940	return; /* path set to "." */
		941	}
		942	else
		943	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		944	}
		945
		946	*pathsv = newSVsv (path);
		947	*ptr = SvPVbyte_nolen (*pathsv);
		948	}
		949
		950	static void ecb_noinline
		951	req_set_path1 (aio_req req, SV *path)
		952	{
		953	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		954	}
		955
		956	static void ecb_noinline
		957	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		958	{
		959	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		960
		961	switch (SvTYPE (rv))
		962	{
		963	case SVt_PVIO:
		964	case SVt_PVLV:
		965	case SVt_PVGV:
		966	req->type = type_fh;
		967	req->sv1 = newSVsv (fh_or_path);
		968	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		969	break;
		970
		971	default:
		972	req->type = type_path;
		973	req_set_path1 (req, fh_or_path);
		974	break;
		975	}
		976	}
		977
		978	XS(boot_IO__AIO) ecb_cold;
		979
792	MODULE = IO::AIO PACKAGE = IO::AIO	980	MODULE = IO::AIO PACKAGE = IO::AIO
793		981
794	PROTOTYPES: ENABLE	982	PROTOTYPES: ENABLE
795		983
796	BOOT:	984	BOOT:
…		…
800	IV iv;	988	IV iv;
801	} *civ, const_iv[] = {	989	} *civ, const_iv[] = {
802	# define const_niv(name, value) { # name, (IV) value },	990	# define const_niv(name, value) { # name, (IV) value },
803	# define const_iv(name) { # name, (IV) name },	991	# define const_iv(name) { # name, (IV) name },
804	# define const_eio(name) { # name, (IV) EIO_ ## name },	992	# define const_eio(name) { # name, (IV) EIO_ ## name },
		993
		994	/* you have to re-run ./gendef0 after adding/removing any constants here */
		995	/* the first block can be undef if missing */
		996	const_iv (ENOSYS)
805	const_iv (EXDEV)	997	const_iv (EXDEV)
806	const_iv (ENOSYS)	998	const_iv (EBADR)
		999
		1000	/* for lseek */
		1001	const_iv (SEEK_DATA)
		1002	const_iv (SEEK_HOLE)
		1003
		1004	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1005	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1006	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1007	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1008	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1009	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1010
		1011	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1012	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1013	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1014	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1015	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1016
		1017	/* the second block will be 0 when missing */
807	const_iv (O_RDONLY)	1018	const_iv (O_RDONLY)
808	const_iv (O_WRONLY)	1019	const_iv (O_WRONLY)
809	const_iv (O_RDWR)	1020	const_iv (O_RDWR)
810	const_iv (O_CREAT)	1021	const_iv (O_CREAT)
811	const_iv (O_TRUNC)	1022	const_iv (O_TRUNC)
…		…
824	const_iv (O_SEARCH)	1035	const_iv (O_SEARCH)
825	const_iv (O_DIRECTORY)	1036	const_iv (O_DIRECTORY)
826	const_iv (O_DSYNC)	1037	const_iv (O_DSYNC)
827	const_iv (O_RSYNC)	1038	const_iv (O_RSYNC)
828	const_iv (O_SYNC)	1039	const_iv (O_SYNC)
		1040	const_iv (O_PATH)
		1041	const_iv (O_TMPFILE)
829	const_iv (O_TTY_INIT)	1042	const_iv (O_TTY_INIT)
830		1043
831	const_iv (S_IFIFO)	1044	const_iv (S_IFIFO)
832	const_iv (S_IFCHR)	1045	const_iv (S_IFCHR)
833	const_iv (S_IFBLK)	1046	const_iv (S_IFBLK)
…		…
835	const_iv (S_IFREG)	1048	const_iv (S_IFREG)
836	const_iv (S_IFDIR)	1049	const_iv (S_IFDIR)
837	const_iv (S_IFWHT)	1050	const_iv (S_IFWHT)
838	const_iv (S_IFSOCK)	1051	const_iv (S_IFSOCK)
839	const_iv (S_IFMT)	1052	const_iv (S_IFMT)
840
841	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
842	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
843	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
844	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
845	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
846	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
847
848	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
849	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
850	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
851	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
852	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
853		1053
854	const_iv (ST_RDONLY)	1054	const_iv (ST_RDONLY)
855	const_iv (ST_NOSUID)	1055	const_iv (ST_NOSUID)
856	const_iv (ST_NODEV)	1056	const_iv (ST_NODEV)
857	const_iv (ST_NOEXEC)	1057	const_iv (ST_NOEXEC)
…		…
867	const_iv (PROT_NONE)	1067	const_iv (PROT_NONE)
868	const_iv (PROT_EXEC)	1068	const_iv (PROT_EXEC)
869	const_iv (PROT_READ)	1069	const_iv (PROT_READ)
870	const_iv (PROT_WRITE)	1070	const_iv (PROT_WRITE)
871		1071
872	/*const_iv (MAP_FIXED)*/
873	const_iv (MAP_PRIVATE)	1072	const_iv (MAP_PRIVATE)
874	const_iv (MAP_SHARED)	1073	const_iv (MAP_SHARED)
		1074	const_iv (MAP_FIXED)
875	const_iv (MAP_ANONYMOUS)	1075	const_iv (MAP_ANONYMOUS)
876		1076
877	/* linuxish */	1077	/* linuxish */
878	const_iv (MAP_HUGETLB)
879	const_iv (MAP_LOCKED)	1078	const_iv (MAP_LOCKED)
880	const_iv (MAP_NORESERVE)	1079	const_iv (MAP_NORESERVE)
881	const_iv (MAP_POPULATE)	1080	const_iv (MAP_POPULATE)
882	const_iv (MAP_NONBLOCK)	1081	const_iv (MAP_NONBLOCK)
		1082	const_iv (MAP_GROWSDOWN)
		1083	const_iv (MAP_32BIT)
		1084	const_iv (MAP_HUGETLB)
		1085	const_iv (MAP_STACK)
		1086
		1087	const_iv (F_DUPFD_CLOEXEC)
		1088
		1089	const_iv (F_OFD_GETLK)
		1090	const_iv (F_OFD_SETLK)
		1091	const_iv (F_OFD_GETLKW)
		1092
		1093	const_iv (FIFREEZE)
		1094	const_iv (FITHAW)
		1095	const_iv (FITRIM)
		1096	const_iv (FICLONE)
		1097	const_iv (FICLONERANGE)
		1098	const_iv (FIDEDUPERANGE)
		1099
		1100	const_iv (FS_IOC_GETFLAGS)
		1101	const_iv (FS_IOC_SETFLAGS)
		1102	const_iv (FS_IOC_GETVERSION)
		1103	const_iv (FS_IOC_SETVERSION)
		1104	const_iv (FS_IOC_FIEMAP)
		1105	const_iv (FS_IOC_FSGETXATTR)
		1106	const_iv (FS_IOC_FSSETXATTR)
		1107	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1108	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1109	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1110
		1111	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1112
		1113	const_iv (FS_SECRM_FL)
		1114	const_iv (FS_UNRM_FL)
		1115	const_iv (FS_COMPR_FL)
		1116	const_iv (FS_SYNC_FL)
		1117	const_iv (FS_IMMUTABLE_FL)
		1118	const_iv (FS_APPEND_FL)
		1119	const_iv (FS_NODUMP_FL)
		1120	const_iv (FS_NOATIME_FL)
		1121	const_iv (FS_DIRTY_FL)
		1122	const_iv (FS_COMPRBLK_FL)
		1123	const_iv (FS_NOCOMP_FL)
		1124	const_iv (FS_ENCRYPT_FL)
		1125	const_iv (FS_BTREE_FL)
		1126	const_iv (FS_INDEX_FL)
		1127	const_iv (FS_JOURNAL_DATA_FL)
		1128	const_iv (FS_NOTAIL_FL)
		1129	const_iv (FS_DIRSYNC_FL)
		1130	const_iv (FS_TOPDIR_FL)
		1131	const_iv (FS_FL_USER_MODIFIABLE)
		1132
		1133	const_iv (FS_XFLAG_REALTIME)
		1134	const_iv (FS_XFLAG_PREALLOC)
		1135	const_iv (FS_XFLAG_IMMUTABLE)
		1136	const_iv (FS_XFLAG_APPEND)
		1137	const_iv (FS_XFLAG_SYNC)
		1138	const_iv (FS_XFLAG_NOATIME)
		1139	const_iv (FS_XFLAG_NODUMP)
		1140	const_iv (FS_XFLAG_RTINHERIT)
		1141	const_iv (FS_XFLAG_PROJINHERIT)
		1142	const_iv (FS_XFLAG_NOSYMLINKS)
		1143	const_iv (FS_XFLAG_EXTSIZE)
		1144	const_iv (FS_XFLAG_EXTSZINHERIT)
		1145	const_iv (FS_XFLAG_NODEFRAG)
		1146	const_iv (FS_XFLAG_FILESTREAM)
		1147	const_iv (FS_XFLAG_DAX)
		1148	const_iv (FS_XFLAG_HASATTR)
		1149
		1150	const_iv (FIEMAP_FLAG_SYNC)
		1151	const_iv (FIEMAP_FLAG_XATTR)
		1152	const_iv (FIEMAP_FLAGS_COMPAT)
		1153	const_iv (FIEMAP_EXTENT_LAST)
		1154	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1155	const_iv (FIEMAP_EXTENT_DELALLOC)
		1156	const_iv (FIEMAP_EXTENT_ENCODED)
		1157	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1158	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1159	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1160	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1161	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1162	const_iv (FIEMAP_EXTENT_MERGED)
		1163	const_iv (FIEMAP_EXTENT_SHARED)
		1164
		1165	const_iv (SPLICE_F_MOVE)
		1166	const_iv (SPLICE_F_NONBLOCK)
		1167	const_iv (SPLICE_F_MORE)
		1168	const_iv (SPLICE_F_GIFT)
		1169
		1170	const_iv (EFD_CLOEXEC)
		1171	const_iv (EFD_NONBLOCK)
		1172	const_iv (EFD_SEMAPHORE)
		1173
		1174	/* these are libeio constants, and are independent of gendef0 */
		1175	const_eio (SEEK_SET)
		1176	const_eio (SEEK_CUR)
		1177	const_eio (SEEK_END)
883		1178
884	const_eio (MCL_FUTURE)	1179	const_eio (MCL_FUTURE)
885	const_eio (MCL_CURRENT)	1180	const_eio (MCL_CURRENT)
886		1181
887	const_eio (MS_ASYNC)	1182	const_eio (MS_ASYNC)
…		…
893	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1188	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
894	const_eio (SYNC_FILE_RANGE_WRITE)	1189	const_eio (SYNC_FILE_RANGE_WRITE)
895	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1190	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
896		1191
897	const_eio (FALLOC_FL_KEEP_SIZE)	1192	const_eio (FALLOC_FL_KEEP_SIZE)
		1193	const_eio (FALLOC_FL_PUNCH_HOLE)
		1194	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1195	const_eio (FALLOC_FL_ZERO_RANGE)
		1196	const_eio (FALLOC_FL_INSERT_RANGE)
		1197	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1198
		1199	const_eio (RENAME_NOREPLACE)
		1200	const_eio (RENAME_EXCHANGE)
		1201	const_eio (RENAME_WHITEOUT)
898		1202
899	const_eio (READDIR_DENTS)	1203	const_eio (READDIR_DENTS)
900	const_eio (READDIR_DIRS_FIRST)	1204	const_eio (READDIR_DIRS_FIRST)
901	const_eio (READDIR_STAT_ORDER)	1205	const_eio (READDIR_STAT_ORDER)
902	const_eio (READDIR_FOUND_UNKNOWN)	1206	const_eio (READDIR_FOUND_UNKNOWN)
…		…
913	};	1217	};
914		1218
915	aio_stash = gv_stashpv ("IO::AIO" , 1);	1219	aio_stash = gv_stashpv ("IO::AIO" , 1);
916	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1220	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
917	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1221	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1222	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
918		1223
919	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1224	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
920	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1225	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
921		1226
922	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1227	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
923		1228
924	create_respipe ();	1229	reinit ();
925
926	if (eio_init (want_poll, done_poll) < 0)
927	croak ("IO::AIO: unable to initialise eio library");
928
929	/* atfork child called in fifo order, so before eio's handler */
930	X_THREAD_ATFORK (0, 0, atfork_child);
931	}	1230	}
		1231
		1232	void
		1233	reinit ()
		1234	PROTOTYPE:
932		1235
933	void	1236	void
934	max_poll_reqs (unsigned int nreqs)	1237	max_poll_reqs (unsigned int nreqs)
935	PROTOTYPE: $	1238	PROTOTYPE: $
936	CODE:	1239	CODE:
…		…
971	PROTOTYPE: $	1274	PROTOTYPE: $
972	CODE:	1275	CODE:
973	max_outstanding = maxreqs;	1276	max_outstanding = maxreqs;
974		1277
975	void	1278	void
976	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1279	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
977	PPCODE:	1280	PPCODE:
978	{	1281	{
979	dREQ;	1282	dREQ;
980		1283
		1284	req->type = EIO_WD_OPEN;
		1285	req_set_path1 (req, pathname);
		1286
		1287	REQ_SEND;
		1288	}
		1289
		1290	void
		1291	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1292	PPCODE:
		1293	{
		1294	dREQ;
		1295
981	req->type = EIO_OPEN;	1296	req->type = EIO_OPEN;
982	req->sv1 = newSVsv (pathname);	1297	req_set_path1 (req, pathname);
983	req->ptr1 = SvPVbyte_nolen (req->sv1);
984	req->int1 = flags;	1298	req->int1 = flags;
985	req->int2 = mode;	1299	req->int2 = mode;
986		1300
987	REQ_SEND;	1301	REQ_SEND;
988	}	1302	}
989		1303
990	void	1304	void
991	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1305	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
992	ALIAS:	1306	ALIAS:
993	aio_fsync = EIO_FSYNC	1307	aio_fsync = EIO_FSYNC
994	aio_fdatasync = EIO_FDATASYNC	1308	aio_fdatasync = EIO_FDATASYNC
		1309	aio_syncfs = EIO_SYNCFS
995	PPCODE:	1310	PPCODE:
996	{	1311	{
997	int fd = s_fileno_croak (fh, 0);	1312	int fd = s_fileno_croak (fh, 0);
998	dREQ;	1313	dREQ;
999		1314
1000	req->type = ix;	1315	req->type = ix;
1001	req->sv1 = newSVsv (fh);	1316	req->sv1 = newSVsv (fh);
1002	req->int1 = fd;	1317	req->int1 = fd;
1003		1318
1004	REQ_SEND (req);	1319	REQ_SEND;
1005	}	1320	}
1006		1321
1007	void	1322	void
1008	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1323	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1009	PPCODE:	1324	PPCODE:
1010	{	1325	{
1011	int fd = s_fileno_croak (fh, 0);	1326	int fd = s_fileno_croak (fh, 0);
1012	dREQ;	1327	dREQ;
1013		1328
1014	req->type = EIO_SYNC_FILE_RANGE;	1329	req->type = EIO_SYNC_FILE_RANGE;
1015	req->sv1 = newSVsv (fh);	1330	req->sv1 = newSVsv (fh);
1016	req->int1 = fd;	1331	req->int1 = fd;
1017	req->offs = offset;	1332	req->offs = offset;
1018	req->size = nbytes;	1333	req->size = nbytes;
1019	req->int2 = flags;	1334	req->int2 = flags;
1020		1335
1021	REQ_SEND (req);	1336	REQ_SEND;
1022	}	1337	}
1023		1338
1024	void	1339	void
1025	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1340	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1026	PPCODE:	1341	PPCODE:
1027	{	1342	{
1028	int fd = s_fileno_croak (fh, 0);	1343	int fd = s_fileno_croak (fh, 0);
1029	dREQ;	1344	dREQ;
1030		1345
1031	req->type = EIO_FALLOCATE;	1346	req->type = EIO_FALLOCATE;
1032	req->sv1 = newSVsv (fh);	1347	req->sv1 = newSVsv (fh);
1033	req->int1 = fd;	1348	req->int1 = fd;
1034	req->int2 = mode;	1349	req->int2 = mode;
1035	req->offs = offset;	1350	req->offs = offset;
1036	req->size = len;	1351	req->size = len;
1037		1352
1038	REQ_SEND (req);	1353	REQ_SEND;
1039	}	1354	}
1040		1355
1041	void	1356	void
1042	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1357	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1043	PPCODE:	1358	PPCODE:
1044	{	1359	{
1045	static int close_fd = -1; /* dummy fd to close fds via dup2 */	1360	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1046	int fd = s_fileno_croak (fh, 0);	1361	int fd = s_fileno_croak (fh, 0);
1047	dREQ;	1362	dREQ;
1048		1363
1049	if (expect_false (close_fd < 0))	1364	if (expect_false (close_fd < 0))
1050	{	1365	{
		1366	int pipefd [2];
		1367
		1368	if (
1051	#ifdef _WIN32	1369	#ifdef _WIN32
1052	close_fd = _open_osfhandle (socket (AF_INET, SOCK_STREAM, 0), 0);	1370	_pipe (pipefd, 1, _O_BINARY) < 0
1053	#else	1371	#else
1054	int pipefd [2];
1055
1056	if (pipe (pipefd) < 0	1372	pipe (pipefd) < 0
1057	|| close (pipefd [1]) < 0
1058	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1373	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1374	#endif
		1375	|| close (pipefd [1]) < 0
		1376	)
1059	abort (); /*D*/	1377	abort (); /*D*/
1060		1378
1061	close_fd = pipefd [0];	1379	close_fd = pipefd [0];
1062	#endif
1063	}	1380	}
1064		1381
1065	req->type = EIO_DUP2;	1382	req->type = EIO_DUP2;
1066	req->int1 = close_fd;	1383	req->int1 = close_fd;
1067	req->sv2 = newSVsv (fh);	1384	req->sv2 = newSVsv (fh);
1068	req->int2 = fd;	1385	req->int2 = fd;
1069		1386
1070	REQ_SEND (req);	1387	REQ_SEND;
1071	}	1388	}
1072		1389
1073	void	1390	void
		1391	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1392	PPCODE:
		1393	{
		1394	int fd = s_fileno_croak (fh, 0);
		1395	dREQ;
		1396
		1397	req->type = EIO_SEEK;
		1398	req->sv1 = newSVsv (fh);
		1399	req->int1 = fd;
		1400	req->offs = SvVAL64 (offset);
		1401	req->int2 = whence;
		1402
		1403	REQ_SEND;
		1404	}
		1405
		1406	void
1074	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1407	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1075	ALIAS:	1408	ALIAS:
1076	aio_read = EIO_READ	1409	aio_read = EIO_READ
1077	aio_write = EIO_WRITE	1410	aio_write = EIO_WRITE
1078	PPCODE:	1411	PPCODE:
1079	{	1412	{
…		…
1095	len = svlen - dataoffset;	1428	len = svlen - dataoffset;
1096	}	1429	}
1097	else	1430	else
1098	{	1431	{
1099	/* read: check type and grow scalar as necessary */	1432	/* read: check type and grow scalar as necessary */
1100	SvUPGRADE (data, SVt_PV);	1433	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1101	svptr = SvGROW (data, len + dataoffset + 1);	1434	svptr = sv_grow (data, len + dataoffset + 1);
		1435	else if (SvCUR (data) < len + dataoffset)
		1436	croak ("length + dataoffset outside of scalar, and cannot grow");
1102	}	1437	}
1103		1438
1104	{	1439	{
1105	dREQ;	1440	dREQ;
1106		1441
…		…
1122	REQ_SEND;	1457	REQ_SEND;
1123	}	1458	}
1124	}	1459	}
1125		1460
1126	void	1461	void
		1462	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1463	ALIAS:
		1464	aio_ioctl = EIO_IOCTL
		1465	aio_fcntl = EIO_FCNTL
		1466	PPCODE:
		1467	{
		1468	int fd = s_fileno_croak (fh, 0);
		1469	char *svptr;
		1470
		1471	if (SvPOK (arg) || !SvNIOK (arg))
		1472	{
		1473	STRLEN svlen;
		1474	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1475	#ifdef IOCPARM_LEN
		1476	STRLEN need = IOCPARM_LEN (request);
		1477	#else
		1478	STRLEN need = 256;
		1479	#endif
		1480
		1481	if (svlen < need)
		1482	svptr = SvGROW (arg, need);
		1483	}
		1484	else
		1485	svptr = (char *)SvIV (arg);
		1486
		1487	{
		1488	dREQ;
		1489
		1490	req->type = ix;
		1491	req->sv1 = newSVsv (fh);
		1492	req->int1 = fd;
		1493	req->int2 = (long)request;
		1494	req->sv2 = SvREFCNT_inc (arg);
		1495	req->ptr2 = svptr;
		1496
		1497	REQ_SEND;
		1498	}
		1499	}
		1500
		1501	void
1127	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1502	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1128	ALIAS:	1503	ALIAS:
1129	aio_readlink = EIO_READLINK	1504	aio_readlink = EIO_READLINK
1130	aio_realpath = EIO_REALPATH	1505	aio_realpath = EIO_REALPATH
1131	PPCODE:	1506	PPCODE:
1132	{	1507	{
1133	SV *data;
1134	dREQ;	1508	dREQ;
1135		1509
1136	req->type = ix;	1510	req->type = ix;
1137	req->sv1 = newSVsv (path);	1511	req_set_path1 (req, pathname);
1138	req->ptr1 = SvPVbyte_nolen (req->sv1);
1139		1512
1140	REQ_SEND;	1513	REQ_SEND;
1141	}	1514	}
1142		1515
1143	void	1516	void
1144	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1517	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1145	PPCODE:	1518	PPCODE:
1146	{	1519	{
1147	int ifd = s_fileno_croak (in_fh , 0);	1520	int ifd = s_fileno_croak (in_fh , 0);
1148	int ofd = s_fileno_croak (out_fh, 1);	1521	int ofd = s_fileno_croak (out_fh, 1);
1149	dREQ;	1522	dREQ;
1150		1523
1151	req->type = EIO_SENDFILE;	1524	req->type = EIO_SENDFILE;
1152	req->sv1 = newSVsv (out_fh);	1525	req->sv1 = newSVsv (out_fh);
1153	req->int1 = ofd;	1526	req->int1 = ofd;
…		…
1158		1531
1159	REQ_SEND;	1532	REQ_SEND;
1160	}	1533	}
1161		1534
1162	void	1535	void
1163	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1536	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1164	PPCODE:	1537	PPCODE:
1165	{	1538	{
1166	int fd = s_fileno_croak (fh, 0);	1539	int fd = s_fileno_croak (fh, 0);
1167	dREQ;	1540	dREQ;
1168		1541
1169	req->type = EIO_READAHEAD;	1542	req->type = EIO_READAHEAD;
1170	req->sv1 = newSVsv (fh);	1543	req->sv1 = newSVsv (fh);
1171	req->int1 = fd;	1544	req->int1 = fd;
…		…
1174		1547
1175	REQ_SEND;	1548	REQ_SEND;
1176	}	1549	}
1177		1550
1178	void	1551	void
1179	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1552	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1180	ALIAS:	1553	ALIAS:
1181	aio_stat = EIO_STAT	1554	aio_stat = EIO_STAT
1182	aio_lstat = EIO_LSTAT	1555	aio_lstat = EIO_LSTAT
1183	aio_statvfs = EIO_STATVFS	1556	aio_statvfs = EIO_STATVFS
1184	PPCODE:	1557	PPCODE:
1185	{	1558	{
1186	dREQ;	1559	dREQ;
1187		1560
1188	req->sv1 = newSVsv (fh_or_path);	1561	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1189
1190	if (SvPOK (req->sv1))
1191	{
1192	req->type = ix;
1193	req->ptr1 = SvPVbyte_nolen (req->sv1);
1194	}
1195	else
1196	{
1197	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1198	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1199	}
1200		1562
1201	REQ_SEND;	1563	REQ_SEND;
1202	}	1564	}
1203		1565
1204	UV	1566	UV
1205	major (UV dev)	1567	major (UV dev)
1206	ALIAS:	1568	ALIAS:
1207	minor = 1	1569	minor = 1
1208	CODE:	1570	CODE:
1209	RETVAL = ix ? major (dev) : minor (dev);	1571	RETVAL = ix ? minor (dev) : major (dev);
1210	OUTPUT:	1572	OUTPUT:
1211	RETVAL	1573	RETVAL
1212		1574
1213	UV	1575	UV
1214	makedev (UV maj, UV min)	1576	makedev (UV maj, UV min)
…		…
1216	RETVAL = makedev (maj, min);	1578	RETVAL = makedev (maj, min);
1217	OUTPUT:	1579	OUTPUT:
1218	RETVAL	1580	RETVAL
1219		1581
1220	void	1582	void
1221	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1583	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1222	PPCODE:	1584	PPCODE:
1223	{	1585	{
1224	dREQ;	1586	dREQ;
1225		1587
1226	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1588	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1227	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1589	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1228	req->sv1 = newSVsv (fh_or_path);	1590	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1229
1230	if (SvPOK (req->sv1))
1231	{
1232	req->type = EIO_UTIME;
1233	req->ptr1 = SvPVbyte_nolen (req->sv1);
1234	}
1235	else
1236	{
1237	req->type = EIO_FUTIME;
1238	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1239	}
1240		1591
1241	REQ_SEND;	1592	REQ_SEND;
1242	}	1593	}
1243		1594
1244	void	1595	void
1245	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1596	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1246	PPCODE:	1597	PPCODE:
1247	{	1598	{
1248	dREQ;	1599	dREQ;
1249		1600
1250	req->sv1 = newSVsv (fh_or_path);
1251	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1601	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1252		1602	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1253	if (SvPOK (req->sv1))
1254	{
1255	req->type = EIO_TRUNCATE;
1256	req->ptr1 = SvPVbyte_nolen (req->sv1);
1257	}
1258	else
1259	{
1260	req->type = EIO_FTRUNCATE;
1261	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1262	}
1263		1603
1264	REQ_SEND;	1604	REQ_SEND;
1265	}	1605	}
1266		1606
1267	void	1607	void
1268	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1608	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1269	ALIAS:
1270	aio_chmod = EIO_CHMOD
1271	aio_mkdir = EIO_MKDIR
1272	PPCODE:	1609	PPCODE:
1273	{	1610	{
1274	dREQ;	1611	dREQ;
1275		1612
1276	req->int2 = mode;	1613	req->int2 = mode;
1277	req->sv1 = newSVsv (fh_or_path);	1614	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1278
1279	if (SvPOK (req->sv1))
1280	{
1281	req->type = ix;
1282	req->ptr1 = SvPVbyte_nolen (req->sv1);
1283	}
1284	else
1285	{
1286	req->type = EIO_FCHMOD;
1287	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1288	}
1289		1615
1290	REQ_SEND;	1616	REQ_SEND;
1291	}	1617	}
1292		1618
1293	void	1619	void
1294	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1620	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1295	PPCODE:	1621	PPCODE:
1296	{	1622	{
1297	dREQ;	1623	dREQ;
1298		1624
1299	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1625	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1300	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1626	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1301	req->sv1 = newSVsv (fh_or_path);	1627	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1302
1303	if (SvPOK (req->sv1))
1304	{
1305	req->type = EIO_CHOWN;
1306	req->ptr1 = SvPVbyte_nolen (req->sv1);
1307	}
1308	else
1309	{
1310	req->type = EIO_FCHOWN;
1311	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1312	}
1313		1628
1314	REQ_SEND;	1629	REQ_SEND;
1315	}	1630	}
1316		1631
1317	void	1632	void
1318	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1633	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1319	PPCODE:	1634	PPCODE:
1320	{	1635	{
1321	dREQ;	1636	dREQ;
1322		1637
1323	req->type = EIO_READDIR;	1638	req->type = EIO_READDIR;
1324	req->sv1 = newSVsv (pathname);
1325	req->ptr1 = SvPVbyte_nolen (req->sv1);
1326	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1639	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1327		1640
1328	if (flags & EIO_READDIR_DENTS)	1641	if (flags & EIO_READDIR_DENTS)
1329	req->int1 |= EIO_READDIR_CUSTOM2;	1642	req->int1 |= EIO_READDIR_CUSTOM2;
1330		1643
		1644	req_set_path1 (req, pathname);
		1645
1331	REQ_SEND;	1646	REQ_SEND;
1332	}	1647	}
1333		1648
1334	void	1649	void
		1650	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1651	PPCODE:
		1652	{
		1653	dREQ;
		1654
		1655	req->type = EIO_MKDIR;
		1656	req->int2 = mode;
		1657	req_set_path1 (req, pathname);
		1658
		1659	REQ_SEND;
		1660	}
		1661
		1662	void
1335	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1663	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1336	ALIAS:	1664	ALIAS:
1337	aio_unlink = EIO_UNLINK	1665	aio_unlink = EIO_UNLINK
1338	aio_rmdir = EIO_RMDIR	1666	aio_rmdir = EIO_RMDIR
1339	aio_readdir = EIO_READDIR	1667	aio_readdir = EIO_READDIR
1340	PPCODE:	1668	PPCODE:
1341	{	1669	{
1342	dREQ;	1670	dREQ;
1343		1671
1344	req->type = ix;	1672	req->type = ix;
1345	req->sv1 = newSVsv (pathname);	1673	req_set_path1 (req, pathname);
1346	req->ptr1 = SvPVbyte_nolen (req->sv1);
1347		1674
1348	REQ_SEND;	1675	REQ_SEND;
1349	}	1676	}
1350		1677
1351	void	1678	void
1352	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1679	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1353	ALIAS:	1680	ALIAS:
1354	aio_link = EIO_LINK	1681	aio_link = EIO_LINK
1355	aio_symlink = EIO_SYMLINK	1682	aio_symlink = EIO_SYMLINK
1356	aio_rename = EIO_RENAME	1683	aio_rename = EIO_RENAME
1357	PPCODE:	1684	PPCODE:
1358	{	1685	{
		1686	eio_wd wd2 = 0;
1359	dREQ;	1687	dREQ;
1360		1688
1361	req->type = ix;	1689	req->type = ix;
1362	req->sv1 = newSVsv (oldpath);	1690	req_set_path1 (req, oldpath);
1363	req->ptr1 = SvPVbyte_nolen (req->sv1);	1691	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1364	req->sv2 = newSVsv (newpath);	1692	req->int3 = (long)wd2;
1365	req->ptr2 = SvPVbyte_nolen (req->sv2);
1366		1693
1367	REQ_SEND;	1694	REQ_SEND;
1368	}	1695	}
1369		1696
1370	void	1697	void
		1698	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1699	PPCODE:
		1700	{
		1701	eio_wd wd2 = 0;
		1702	dREQ;
		1703
		1704	req->type = EIO_RENAME;
		1705	req_set_path1 (req, oldpath);
		1706	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1707	req->int2 = flags;
		1708	req->int3 = (long)wd2;
		1709
		1710	REQ_SEND;
		1711	}
		1712
		1713	void
1371	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1714	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1372	PPCODE:	1715	PPCODE:
1373	{	1716	{
1374	dREQ;	1717	dREQ;
1375		1718
1376	req->type = EIO_MKNOD;	1719	req->type = EIO_MKNOD;
1377	req->sv1 = newSVsv (pathname);
1378	req->ptr1 = SvPVbyte_nolen (req->sv1);
1379	req->int2 = (mode_t)mode;	1720	req->int2 = (mode_t)mode;
1380	req->offs = dev;	1721	req->offs = dev;
		1722	req_set_path1 (req, pathname);
1381		1723
1382	REQ_SEND;	1724	REQ_SEND;
1383	}	1725	}
1384		1726
1385	void	1727	void
1386	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1728	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1387	ALIAS:	1729	ALIAS:
1388	aio_mtouch = EIO_MTOUCH	1730	aio_mtouch = EIO_MTOUCH
1389	aio_msync = EIO_MSYNC	1731	aio_msync = EIO_MSYNC
1390	PPCODE:	1732	PPCODE:
1391	{	1733	{
1392	STRLEN svlen;	1734	STRLEN svlen;
1393	char *svptr = SvPVbyte (data, svlen);	1735	char *svptr = SvPVbyte (data, svlen);
1394	UV len = SvUV (length);	1736	UV len = SvUV (length);
		1737
		1738	if (flags < 0)
		1739	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1395		1740
1396	if (offset < 0)	1741	if (offset < 0)
1397	offset += svlen;	1742	offset += svlen;
1398		1743
1399	if (offset < 0 || offset > svlen)	1744	if (offset < 0 || offset > svlen)
…		…
1414	REQ_SEND;	1759	REQ_SEND;
1415	}	1760	}
1416	}	1761	}
1417		1762
1418	void	1763	void
1419	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1764	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1420	PPCODE:	1765	PPCODE:
1421	{	1766	{
1422	STRLEN svlen;	1767	STRLEN svlen;
1423	char *svptr = SvPVbyte (data, svlen);	1768	char *svptr = SvPVbyte (data, svlen);
1424	UV len = SvUV (length);	1769	UV len = SvUV (length);
…		…
1443	REQ_SEND;	1788	REQ_SEND;
1444	}	1789	}
1445	}	1790	}
1446		1791
1447	void	1792	void
1448	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1793	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1449	PPCODE:	1794	PPCODE:
1450	{	1795	{
1451	dREQ;	1796	dREQ;
1452		1797
1453	req->type = EIO_MLOCKALL;	1798	req->type = EIO_MLOCKALL;
…		…
1455		1800
1456	REQ_SEND;	1801	REQ_SEND;
1457	}	1802	}
1458		1803
1459	void	1804	void
		1805	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1806	PPCODE:
		1807	{
		1808	int fd = s_fileno_croak (fh, 0);
		1809	dREQ;
		1810
		1811	req->type = EIO_CUSTOM;
		1812	req->sv1 = newSVsv (fh);
		1813	req->int1 = fd;
		1814
		1815	req->feed = fiemap;
		1816	#if HAVE_FIEMAP
		1817	/* keep our fingers crossed that the next two types are 64 bit */
		1818	req->offs = start;
		1819	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1820	req->int2 = flags;
		1821	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1822	#endif
		1823
		1824	REQ_SEND;
		1825	}
		1826
		1827	void
		1828	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1829	PPCODE:
		1830	{
		1831	char *svptr = 0;
		1832
		1833	sv_clear_foreign (data);
		1834
		1835	if (length) /* known length, directly read into scalar */
		1836	{
		1837	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1838	svptr = sv_grow (data, length + 1);
		1839	else if (SvCUR (data) < length)
		1840	croak ("length outside of scalar, and cannot grow");
		1841	else
		1842	svptr = SvPVbyte_nolen (data);
		1843	}
		1844
		1845	{
		1846	dREQ;
		1847
		1848	req->type = EIO_SLURP;
		1849	req_set_path1 (req, pathname);
		1850	req->offs = offset;
		1851	req->size = length;
		1852	req->sv2 = SvREFCNT_inc (data);
		1853	req->ptr2 = svptr;
		1854
		1855	if (!SvREADONLY (data))
		1856	{
		1857	SvREADONLY_on (data);
		1858	req->flags |= FLAG_SV2_RO_OFF;
		1859	}
		1860
		1861	REQ_SEND;
		1862	}
		1863	}
		1864
		1865	void
1460	aio_busy (double delay, SV *callback=&PL_sv_undef)	1866	aio_busy (double delay, SV *callback = &PL_sv_undef)
1461	PPCODE:	1867	PPCODE:
1462	{	1868	{
1463	dREQ;	1869	dREQ;
1464		1870
1465	req->type = EIO_BUSY;	1871	req->type = EIO_BUSY;
…		…
1467		1873
1468	REQ_SEND;	1874	REQ_SEND;
1469	}	1875	}
1470		1876
1471	void	1877	void
1472	aio_group (SV *callback=&PL_sv_undef)	1878	aio_group (SV *callback = &PL_sv_undef)
1473	PPCODE:	1879	PPCODE:
1474	{	1880	{
1475	dREQ;	1881	dREQ;
1476		1882
1477	req->type = EIO_GROUP;	1883	req->type = EIO_GROUP;
1478		1884
		1885	PUTBACK;
1479	req_submit (req);	1886	req_submit (req);
		1887	SPAGAIN;
		1888
1480	XPUSHs (req_sv (req, aio_grp_stash));	1889	XPUSHs (req_sv (req, aio_grp_stash));
1481	}	1890	}
1482		1891
1483	void	1892	void
1484	aio_nop (SV *callback=&PL_sv_undef)	1893	aio_nop (SV *callback = &PL_sv_undef)
1485	ALIAS:	1894	ALIAS:
1486	aio_nop = EIO_NOP	1895	aio_nop = EIO_NOP
1487	aio_sync = EIO_SYNC	1896	aio_sync = EIO_SYNC
1488	PPCODE:	1897	PPCODE:
1489	{	1898	{
…		…
1493		1902
1494	REQ_SEND;	1903	REQ_SEND;
1495	}	1904	}
1496		1905
1497	int	1906	int
1498	aioreq_pri (int pri = 0)	1907	aioreq_pri (int pri = NO_INIT)
1499	CODE:	1908	CODE:
1500	RETVAL = next_pri;	1909	RETVAL = next_pri;
1501	if (items > 0)	1910	if (items > 0)
1502	{	1911	{
1503	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1912	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1585	CODE:	1994	CODE:
1586	RETVAL = posix_fadvise (fh, offset, length, advice);	1995	RETVAL = posix_fadvise (fh, offset, length, advice);
1587	OUTPUT:	1996	OUTPUT:
1588	RETVAL	1997	RETVAL
1589		1998
1590	ssize_t	1999	IV
1591	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	2000	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1592	CODE:	2001	CODE:
1593	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2002	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1594	OUTPUT:	2003	OUTPUT:
1595	RETVAL	2004	RETVAL
1596		2005
1597	void	2006	void
1598	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2007	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1599	PPCODE:	2008	PPCODE:
1600	sv_unmagic (scalar, MMAP_MAGIC);	2009	sv_clear_foreign (scalar);
1601	{	2010	{
1602	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2011	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1603	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2012	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1604	if (addr == (void *)-1)	2013	if (addr == (void *)-1)
1605	XSRETURN_NO;	2014	XSRETURN_NO;
1606		2015
1607	sv_force_normal (scalar);	2016	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1608
1609	/* we store the length in mg_obj, as namlen is I32 :/ */
1610	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1611	->mg_obj = (SV *)length;
1612
1613	SvUPGRADE (scalar, SVt_PV); /* nop... */
1614		2017
1615	if (!(prot & PROT_WRITE))	2018	if (!(prot & PROT_WRITE))
1616	SvREADONLY_on (scalar);	2019	SvREADONLY_on (scalar);
1617		2020
1618	if (SvLEN (scalar))
1619	Safefree (SvPVX (scalar));
1620
1621	SvPVX (scalar) = (char *)addr;
1622	SvCUR_set (scalar, length);
1623	SvLEN_set (scalar, 0);
1624	SvPOK_only (scalar);
1625
1626	XSRETURN_YES;	2021	XSRETURN_YES;
1627	}	2022	}
1628		2023
1629	void	2024	void
1630	munmap (SV *scalar)	2025	munmap (SV *scalar)
1631	CODE:	2026	CODE:
1632	sv_unmagic (scalar, MMAP_MAGIC);	2027	sv_clear_foreign (scalar);
1633		2028
1634	int	2029	int
1635	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2030	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1636	ALIAS:	2031	ALIAS:
1637	mprotect = 1	2032	mprotect = 1
1638	CODE:	2033	CODE:
1639	{	2034	{
1640	STRLEN svlen;	2035	STRLEN svlen;
1641	void *addr = SvPVbyte (scalar, svlen);	2036	void *addr = SvPVbyte (scalar, svlen);
1642	size_t len = SvUV (length);	2037	STRLEN len = SvUV (length);
1643		2038
1644	if (offset < 0)	2039	if (offset < 0)
1645	offset += svlen;	2040	offset += svlen;
1646		2041
1647	if (offset < 0 || offset > svlen)	2042	if (offset < 0 || offset > svlen)
…		…
1661	}	2056	}
1662	OUTPUT:	2057	OUTPUT:
1663	RETVAL	2058	RETVAL
1664		2059
1665	int	2060	int
1666	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2061	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1667	CODE:	2062	CODE:
1668	{	2063	{
1669	STRLEN svlen;	2064	STRLEN svlen;
1670	void *addr = SvPVbyte (scalar, svlen);	2065	void *addr = SvPVbyte (scalar, svlen);
1671	size_t len = SvUV (length);	2066	size_t len = SvUV (length);
1672		2067
1673	if (offset < 0)	2068	if (offset < 0)
1674	offset += svlen;	2069	offset += svlen;
1675		2070
…		…
1682	addr = (void *)(((intptr_t)addr) + offset);	2077	addr = (void *)(((intptr_t)addr) + offset);
1683	eio_page_align (&addr, &len);	2078	eio_page_align (&addr, &len);
1684	#if _POSIX_MEMLOCK_RANGE	2079	#if _POSIX_MEMLOCK_RANGE
1685	RETVAL = munlock (addr, len);	2080	RETVAL = munlock (addr, len);
1686	#else	2081	#else
1687	RETVAL = ((errno = ENOSYS), -1);	2082	RETVAL = EIO_ENOSYS ();
1688	#endif	2083	#endif
1689	}	2084	}
1690	OUTPUT:	2085	OUTPUT:
1691	RETVAL	2086	RETVAL
1692		2087
…		…
1694	munlockall ()	2089	munlockall ()
1695	CODE:	2090	CODE:
1696	#if _POSIX_MEMLOCK	2091	#if _POSIX_MEMLOCK
1697	munlockall ();	2092	munlockall ();
1698	#else	2093	#else
1699	RETVAL = -1;	2094	RETVAL = EIO_ENOSYS ();
1700	errno = ENOSYS;
1701	#endif	2095	#endif
1702	OUTPUT:	2096	OUTPUT:
1703	RETVAL	2097	RETVAL
		2098
		2099	int
		2100	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2101	CODE:
		2102	{
		2103	#if HAVE_LINUX_SPLICE
		2104	loff_t off_in_, off_out_;
		2105	RETVAL = splice (
		2106	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2107	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2108	length, flags
		2109	);
		2110	#else
		2111	RETVAL = EIO_ENOSYS ();
		2112	#endif
		2113	}
		2114	OUTPUT:
		2115	RETVAL
		2116
		2117	int
		2118	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2119	CODE:
		2120	#if HAVE_LINUX_SPLICE
		2121	RETVAL = tee (rfh, wfh, length, flags);
		2122	#else
		2123	RETVAL = EIO_ENOSYS ();
		2124	#endif
		2125	OUTPUT:
		2126	RETVAL
		2127
		2128	int
		2129	pipesize (aio_rfd rfh, int new_size = -1)
		2130	PROTOTYPE: $;$
		2131	CODE:
		2132	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2133	if (new_size >= 0)
		2134	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2135	else
		2136	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2137	#else
		2138	errno = ENOSYS;
		2139	RETVAL = -1;
		2140	#endif
		2141	OUTPUT:
		2142	RETVAL
		2143
		2144	void
		2145	pipe2 (int flags = 0)
		2146	PROTOTYPE: ;$
		2147	PPCODE:
		2148	{
		2149	int fd[2];
		2150	int res;
		2151
		2152	if (flags)
		2153	#if HAVE_PIPE2
		2154	res = pipe2 (fd, flags);
		2155	#else
		2156	res = (errno = ENOSYS, -1);
		2157	#endif
		2158	else
		2159	res = pipe (fd);
		2160
		2161	if (!res)
		2162	{
		2163	EXTEND (SP, 2);
		2164	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2165	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2166	}
		2167	}
		2168
		2169	void
		2170	eventfd (unsigned int initval = 0, int flags = 0)
		2171	PPCODE:
		2172	{
		2173	int fd;
		2174	#if HAVE_EVENTFD
		2175	fd = eventfd (initval, flags);
		2176	#else
		2177	fd = (errno = ENOSYS, -1);
		2178	#endif
		2179
		2180	XPUSHs (newmortalFH (fd, O_RDWR));
		2181	}
		2182
		2183	UV
		2184	get_fdlimit ()
		2185	CODE:
		2186	#if HAVE_RLIMITS
		2187	struct rlimit rl;
		2188	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2189	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2190	#endif
		2191	XSRETURN_UNDEF;
		2192	OUTPUT:
		2193	RETVAL
		2194
		2195	void
		2196	min_fdlimit (UV limit = 0x7fffffffU)
		2197	CODE:
		2198	{
		2199	#if HAVE_RLIMITS
		2200	struct rlimit rl;
		2201	rlim_t orig_rlim_max;
		2202	UV bit;
		2203
		2204	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2205	goto fail;
		2206
		2207	if (rl.rlim_cur == RLIM_INFINITY)
		2208	XSRETURN_YES;
		2209
		2210	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2211
		2212	if (rl.rlim_cur < limit)
		2213	{
		2214	rl.rlim_cur = limit;
		2215
		2216	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2217	rl.rlim_max = rl.rlim_cur;
		2218	}
		2219
		2220	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2221	XSRETURN_YES;
		2222
		2223	if (errno == EPERM)
		2224	{
		2225	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2226	/* our limit overflows a system-wide limit */
		2227	/* try an adaptive algorithm, but do not lower the hardlimit */
		2228	rl.rlim_max = 0;
		2229	for (bit = 0x40000000U; bit; bit >>= 1)
		2230	{
		2231	rl.rlim_max |= bit;
		2232	rl.rlim_cur = rl.rlim_max;
		2233
		2234	/* nevr decrease the hard limit */
		2235	if (rl.rlim_max < orig_rlim_max)
		2236	break;
		2237
		2238	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2239	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2240	}
		2241
		2242	/* now, raise the soft limit to the max permitted */
		2243	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2244	{
		2245	rl.rlim_cur = rl.rlim_max;
		2246	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2247	errno = EPERM;
		2248	}
		2249	}
		2250	#endif
		2251	fail:
		2252	XSRETURN_UNDEF;
		2253	}
1704		2254
1705	void _on_next_submit (SV *cb)	2255	void _on_next_submit (SV *cb)
1706	CODE:	2256	CODE:
1707	SvREFCNT_dec (on_next_submit);	2257	SvREFCNT_dec (on_next_submit);
1708	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2258	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1709		2259
1710	PROTOTYPES: DISABLE	2260	PROTOTYPES: DISABLE
1711		2261
		2262	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2263
		2264	BOOT:
		2265	{
		2266	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2267	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2268	}
		2269
		2270	void
		2271	DESTROY (SV *self)
		2272	CODE:
		2273	{
		2274	aio_wd wd = SvAIO_WD (self);
		2275	#if HAVE_AT
		2276	{
		2277	SV *callback = &PL_sv_undef;
		2278	dREQ; /* clobbers next_pri :/ */
		2279	next_pri = req->pri; /* restore next_pri */
		2280	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2281	req->type = EIO_WD_CLOSE;
		2282	req->wd = wd;
		2283	REQ_SEND;
		2284	}
		2285	#else
		2286	eio_wd_close_sync (wd);
		2287	#endif
		2288	}
		2289
1712	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2290	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1713		2291
1714	void	2292	void
1715	cancel (aio_req_ornot req)	2293	cancel (aio_req_ornot req)
1716	CODE:	2294	CODE:
1717	eio_cancel (req);	2295	eio_cancel (req);
1718		2296
1719	void	2297	void
1720	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2298	cb (aio_req_ornot req, SV *callback = NO_INIT)
1721	PPCODE:	2299	PPCODE:
1722	{	2300	{
1723	if (GIMME_V != G_VOID)	2301	if (GIMME_V != G_VOID)
1724	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2302	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1725		2303
1726	if (items > 1)	2304	if (items > 1)
1727	{	2305	{
1728	SV *cb_cv =get_cb (callback);	2306	SV *cb_cv = get_cb (callback);
1729		2307
1730	SvREFCNT_dec (req->callback);	2308	SvREFCNT_dec (req->callback);
1731	req->callback = SvREFCNT_inc (cb_cv);	2309	req->callback = SvREFCNT_inc (cb_cv);
1732	}	2310	}
1733	}	2311	}
…		…
1790	limit (aio_req grp, int limit)	2368	limit (aio_req grp, int limit)
1791	CODE:	2369	CODE:
1792	eio_grp_limit (grp, limit);	2370	eio_grp_limit (grp, limit);
1793		2371
1794	void	2372	void
1795	feed (aio_req grp, SV *callback=&PL_sv_undef)	2373	feed (aio_req grp, SV *callback = &PL_sv_undef)
1796	CODE:	2374	CODE:
1797	{	2375	{
1798	SvREFCNT_dec (grp->sv2);	2376	SvREFCNT_dec (grp->sv2);
1799	grp->sv2 = newSVsv (callback);	2377	grp->sv2 = newSVsv (callback);
1800	grp->feed = aio_grp_feed;	2378	grp->feed = aio_grp_feed;

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