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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.204 by root, Sat Oct 1 10:48:04 2011 UTC vs.
Revision 1.273 by root, Mon Mar 4 10:28:38 2019 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
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	#include "perliol.h"
8		9
9	#include "schmorp.h"	10	#if !defined mg_findext
		11	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		12	#endif
10		13
11	#include <stddef.h>	14	#include <stddef.h>
12	#include <stdlib.h>	15	#include <stdlib.h>
13	#include <errno.h>	16	#include <errno.h>
14	#include <sys/types.h>	17	#include <sys/types.h>
		18	#include <sys/socket.h>
15	#include <sys/stat.h>	19	#include <sys/stat.h>
16	#include <limits.h>	20	#include <limits.h>
17	#include <fcntl.h>	21	#include <fcntl.h>
18	#include <sched.h>	22	#include <sched.h>
19		23
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	24	/* the incompetent fool that created musl keeps __linux__, refuses
21	# include <sys/mman.h>	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
22	#endif	36	#endif
23		37
24	/* perl namespace pollution */	38	/* perl namespace pollution */
25	#undef VERSION	39	#undef VERSION
26		40
…		…
61	#undef fchmod	75	#undef fchmod
62	#undef dup	76	#undef dup
63	#undef dup2	77	#undef dup2
64	#undef abort	78	#undef abort
65	#undef pipe	79	#undef pipe
		80	#undef utime
		81
		82	#define EIO_STRUCT_STAT struct _stati64
		83	#define EIO_STRUCT_STATI64
66		84
67	#else	85	#else
68		86
69	#include <sys/time.h>	87	#include <sys/time.h>
70	#include <sys/select.h>	88	#include <sys/select.h>
71	#include <unistd.h>	89	#include <unistd.h>
72	#include <utime.h>	90	#include <utime.h>
73	#include <signal.h>	91	#include <signal.h>
74		92
75	#endif
76
77	#define EIO_STRUCT_STAT Stat_t	93	#define EIO_STRUCT_STAT Stat_t
78		94
79	/* use NV for 32 bit perls as it allows larger offsets */
80	#if IVSIZE >= 8
81	# define VAL64 IV
82	# define SvVAL64 SvIV
83	# define newSVval64 newSViv
84	#else
85	# define VAL64 NV
86	# define SvVAL64 SvNV
87	# define newSVval64 newSVnv
88	#endif	95	#endif
89		96
90	/*****************************************************************************/	97	/*****************************************************************************/
91		98
92	#if __GNUC__ >= 3	99	#if __GNUC__ >= 3
…		…
97		104
98	#define expect_false(expr) expect ((expr) != 0, 0)	105	#define expect_false(expr) expect ((expr) != 0, 0)
99	#define expect_true(expr) expect ((expr) != 0, 1)	106	#define expect_true(expr) expect ((expr) != 0, 1)
100		107
101	/*****************************************************************************/	108	/*****************************************************************************/
		109
		110	#include "config.h"
		111
		112	#if HAVE_SYS_MKDEV_H
		113	# include <sys/mkdev.h>
		114	#elif HAVE_SYS_SYSMACROS_H
		115	# include <sys/sysmacros.h>
		116	#endif
		117
		118	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		119	# include <sys/mman.h>
		120	#endif
		121
		122	#if HAVE_ST_XTIMENSEC
		123	# define ATIMENSEC PL_statcache.st_atimensec
		124	# define MTIMENSEC PL_statcache.st_mtimensec
		125	# define CTIMENSEC PL_statcache.st_ctimensec
		126	#elif HAVE_ST_XTIMESPEC
		127	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		128	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		129	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		130	#else
		131	# define ATIMENSEC 0
		132	# define MTIMENSEC 0
		133	# define CTIMENSEC 0
		134	#endif
		135
		136	#if HAVE_ST_BIRTHTIMENSEC
		137	# define BTIMESEC PL_statcache.st_birthtime
		138	# define BTIMENSEC PL_statcache.st_birthtimensec
		139	#elif HAVE_ST_BIRTHTIMESPEC
		140	# define BTIMESEC PL_statcache.st_birthtim.tv_sec
		141	# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
		142	#else
		143	# define BTIMESEC 0
		144	# define BTIMENSEC 0
		145	#endif
		146
		147	#if HAVE_ST_GEN
		148	# define ST_GEN PL_statcache.st_gen
		149	#else
		150	# define ST_GEN 0
		151	#endif
		152
		153	#include "schmorp.h"
		154
		155	#if HAVE_EVENTFD
		156	# include <sys/eventfd.h>
		157	#endif
		158
		159	#if HAVE_TIMERFD
		160	# include <sys/timerfd.h>
		161	#endif
		162
		163	#if HAVE_RLIMITS
		164	#include <sys/time.h>
		165	#include <sys/resource.h>
		166	#endif
102		167
103	typedef SV SV8; /* byte-sv, used for argument-checking */	168	typedef SV SV8; /* byte-sv, used for argument-checking */
104	typedef int aio_rfd; /* read file desriptor */	169	typedef int aio_rfd; /* read file desriptor */
105	typedef int aio_wfd; /* write file descriptor */	170	typedef int aio_wfd; /* write file descriptor */
106		171
…		…
113	STRLEN stroffset; \	178	STRLEN stroffset; \
114	SV *self;	179	SV *self;
115		180
116	#define EIO_NO_WRAPPERS 1	181	#define EIO_NO_WRAPPERS 1
117		182
118	#include "libeio/config.h"
119	#include "libeio/eio.h"	183	#include "libeio/eio.h"
120		184
121	static int req_invoke (eio_req *req);	185	static int req_invoke (eio_req *req);
122	#define EIO_FINISH(req) req_invoke (req)	186	#define EIO_FINISH(req) req_invoke (req)
123	static void req_destroy (eio_req *grp);	187	static void req_destroy (eio_req *grp);
124	#define EIO_DESTROY(req) req_destroy (req)	188	#define EIO_DESTROY(req) req_destroy (req)
125		189
126	#include "libeio/eio.c"	190	#include "libeio/eio.c"
127		191
128	/* Linux/others */
129	#ifndef O_ASYNC
130	# define O_ASYNC 0
131	#endif
132	#ifndef O_DIRECT
133	# define O_DIRECT 0
134	#endif
135	#ifndef O_NOATIME
136	# define O_NOATIME 0
137	#endif
138
139	/* POSIX */
140	#ifndef O_CLOEXEC
141	# define O_CLOEXEC 0
142	#endif
143	#ifndef O_NOFOLLOW
144	# define O_NOFOLLOW 0
145	#endif
146	#ifndef O_NOCTTY
147	# define O_NOCTTY 0
148	#endif
149	#ifndef O_NONBLOCK
150	# define O_NONBLOCK 0
151	#endif
152	#ifndef O_EXEC
153	# define O_EXEC 0
154	#endif
155	#ifndef O_SEARCH
156	# define O_SEARCH 0
157	#endif
158	#ifndef O_DIRECTORY
159	# define O_DIRECTORY 0
160	#endif
161	#ifndef O_DSYNC
162	# define O_DSYNC 0
163	#endif
164	#ifndef O_RSYNC
165	# define O_RSYNC 0
166	#endif
167	#ifndef O_SYNC
168	# define O_SYNC 0
169	#endif
170	#ifndef O_TTY_INIT
171	# define O_TTY_INIT 0
172	#endif
173
174	#ifndef POSIX_FADV_NORMAL
175	# define POSIX_FADV_NORMAL 0
176	#endif
177	#ifndef POSIX_FADV_SEQUENTIAL
178	# define POSIX_FADV_SEQUENTIAL 0
179	#endif
180	#ifndef POSIX_FADV_RANDOM
181	# define POSIX_FADV_RANDOM 0
182	#endif
183	#ifndef POSIX_FADV_NOREUSE
184	# define POSIX_FADV_NOREUSE 0
185	#endif
186	#ifndef POSIX_FADV_WILLNEED
187	# define POSIX_FADV_WILLNEED 0
188	#endif
189	#ifndef POSIX_FADV_DONTNEED
190	# define POSIX_FADV_DONTNEED 0
191	#endif
192
193	#if !HAVE_POSIX_FADVISE	192	#if !HAVE_POSIX_FADVISE
194	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	193	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
195	#endif	194	#endif
196		195
197	#ifndef POSIX_MADV_NORMAL
198	# define POSIX_MADV_NORMAL 0
199	#endif
200	#ifndef POSIX_MADV_SEQUENTIAL
201	# define POSIX_MADV_SEQUENTIAL 0
202	#endif
203	#ifndef POSIX_MADV_RANDOM
204	# define POSIX_MADV_RANDOM 0
205	#endif
206	#ifndef POSIX_MADV_WILLNEED
207	# define POSIX_MADV_WILLNEED 0
208	#endif
209	#ifndef POSIX_MADV_DONTNEED
210	# define POSIX_MADV_DONTNEED 0
211	#endif
212
213	#if !HAVE_POSIX_MADVISE	196	#if !HAVE_POSIX_MADVISE
214	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	197	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
215	#endif
216
217	#ifndef PROT_NONE
218	# define PROT_NONE 0
219	#endif
220	#ifndef PROT_READ
221	# define PROT_READ 0
222	#endif
223	#ifndef PROT_WRITE
224	# define PROT_READ 0
225	#endif
226	#ifndef PROT_EXEC
227	# define PROT_EXEC 0
228	#endif
229
230	#ifndef ST_RDONLY
231	# define ST_RDONLY 0
232	#endif
233	#ifndef ST_NOSUID
234	# define ST_NOSUID 0
235	#endif
236	#ifndef ST_NODEV
237	# define ST_NODEV 0
238	#endif
239	#ifndef ST_NOEXEC
240	# define ST_NOEXEC 0
241	#endif
242	#ifndef ST_SYNCHRONOUS
243	# define ST_SYNCHRONOUS 0
244	#endif
245	#ifndef ST_MANDLOCK
246	# define ST_MANDLOCK 0
247	#endif
248	#ifndef ST_WRITE
249	# define ST_WRITE 0
250	#endif
251	#ifndef ST_APPEND
252	# define ST_APPEND 0
253	#endif
254	#ifndef ST_IMMUTABLE
255	# define ST_IMMUTABLE 0
256	#endif
257	#ifndef ST_NOATIME
258	# define ST_NOATIME 0
259	#endif
260	#ifndef ST_NODIRATIME
261	# define ST_NODIRATIME 0
262	#endif
263	#ifndef ST_RELATIME
264	# define ST_RELATIME 0
265	#endif
266
267	#ifndef S_IFIFO
268	# define S_IFIFO 0
269	#endif
270	#ifndef S_IFCHR
271	# define S_IFCHR 0
272	#endif
273	#ifndef S_IFBLK
274	# define S_IFBLK 0
275	#endif
276	#ifndef S_IFLNK
277	# define S_IFLNK 0
278	#endif
279	#ifndef S_IFREG
280	# define S_IFREG 0
281	#endif
282	#ifndef S_IFDIR
283	# define S_IFDIR 0
284	#endif
285	#ifndef S_IFWHT
286	# define S_IFWHT 0
287	#endif
288	#ifndef S_IFSOCK
289	# define S_IFSOCK 0
290	#endif	198	#endif
291		199
292	#ifndef MAP_ANONYMOUS	200	#ifndef MAP_ANONYMOUS
293	# ifdef MAP_ANON	201	# ifdef MAP_ANON
294	# define MAP_ANONYMOUS MAP_ANON	202	# define MAP_ANONYMOUS MAP_ANON
295	# else	203	# else
296	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	204	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
297	# endif	205	# endif
298	#endif	206	#endif
299	#ifndef MAP_HUGETLB
300	# define MAP_HUGETLB 0
301	#endif
302	#ifndef MAP_LOCKED
303	# define MAP_LOCKED 0
304	#endif
305	#ifndef MAP_NORESERVE
306	# define MAP_NORESERVE 0
307	#endif
308	#ifndef MAP_POPULATE
309	# define MAP_POPULATE 0
310	#endif
311	#ifndef MAP_NONBLOCK
312	# define MAP_NONBLOCK 0
313	#endif
314		207
315	#ifndef makedev	208	#ifndef makedev
316	# define makedev(maj,min) (((maj) << 8) | (min))	209	# define makedev(maj,min) (((maj) << 8) | (min))
317	#endif	210	#endif
318	#ifndef major	211	#ifndef major
…		…
320	#endif	213	#endif
321	#ifndef minor	214	#ifndef minor
322	# define minor(dev) ((dev) & 0xff)	215	# define minor(dev) ((dev) & 0xff)
323	#endif	216	#endif
324		217
		218	/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
		219	#ifdef __sun
325	#ifndef PAGESIZE	220	# undef PAGESIZE
		221	#endif
		222
		223	#if PAGESIZE <= 0
326	# define PAGESIZE sysconf (_SC_PAGESIZE)	224	# define PAGESIZE sysconf (_SC_PAGESIZE)
327	#endif	225	#endif
		226
		227	/*****************************************************************************/
		228
		229	#if !_POSIX_MAPPED_FILES
		230	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		231	# define munmap(addr,length) EIO_ENOSYS ()
		232	#endif
		233
		234	#if !_POSIX_MEMORY_PROTECTION
		235	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		236	#endif
		237
		238	#if !MREMAP_MAYMOVE
		239	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		240	#endif
		241
		242	#define FOREIGN_MAGIC PERL_MAGIC_ext
		243
		244	static int ecb_cold
		245	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		246	{
		247	int old_errno = errno;
		248	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		249	errno = old_errno;
		250
		251	mg->mg_obj = 0; /* just in case */
		252
		253	SvREADONLY_off (sv);
		254
		255	if (SvPVX (sv) != mg->mg_ptr)
		256	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		257
		258	SvCUR_set (sv, 0);
		259	SvPVX (sv) = 0;
		260	SvOK_off (sv);
		261
		262	return 0;
		263	}
		264
		265	static MGVTBL mmap_vtbl = {
		266	0, 0, 0, 0, mmap_free
		267	};
		268
		269	static int ecb_cold
		270	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		271	{
		272	free (mg->mg_ptr);
		273	mg->mg_obj = 0; /* just in case */
		274
		275	SvREADONLY_off (sv);
		276
		277	if (SvPVX (sv) != mg->mg_ptr)
		278	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		279
		280	SvCUR_set (sv, 0);
		281	SvPVX (sv) = 0;
		282	SvOK_off (sv);
		283
		284	return 0;
		285	}
		286
		287	static MGVTBL sysfree_vtbl = {
		288	0, 0, 0, 0, sysfree_free
		289	};
		290
		291	/*****************************************************************************/
		292
		293	/* helper: set scalar to foreign ptr with custom free */
		294	static void
		295	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		296	{
		297	sv_force_normal (sv);
		298
		299	/* we store the length in mg_obj, as namlen is I32 :/ */
		300	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		301	->mg_obj = (SV *)length;
		302
		303	SvUPGRADE (sv, SVt_PV); /* nop... */
		304
		305	if (SvLEN (sv))
		306	Safefree (SvPVX (sv));
		307
		308	SvPVX (sv) = (char *)addr;
		309	SvCUR_set (sv, length);
		310	SvLEN_set (sv, 0);
		311	SvPOK_only (sv);
		312	}
		313
		314	static void
		315	sv_clear_foreign (SV *sv)
		316	{
		317	/* todo: iterate over magic and only free ours, but of course */
		318	/* the perl5porters will call that (correct) behaviour buggy */
		319	sv_unmagic (sv, FOREIGN_MAGIC);
		320	}
		321
		322	/*****************************************************************************/
		323
		324	/* defines all sorts of constants to 0 unless they are already defined */
		325	/* also provides const_iv_ and const_niv_ macros for them */
		326	#include "def0.h"
		327
		328	/*****************************************************************************/
		329
		330	static void
		331	fiemap (eio_req *req)
		332	{
		333	req->result = -1;
		334
		335	#if HAVE_FIEMAP
		336	/* assume some c99 */
		337	struct fiemap *fiemap = 0;
		338	size_t end_offset;
		339	int count = req->int3;
		340
		341	req->flags |= EIO_FLAG_PTR1_FREE;
		342
		343	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		344	/* increase in 3.5kb steps */
		345	if (count < 0)
		346	count = 8;
		347
		348	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		349	errno = ENOMEM;
		350	if (!fiemap)
		351	return;
		352
		353	req->ptr1 = fiemap;
		354
		355	fiemap->fm_start = req->offs;
		356	fiemap->fm_length = req->size;
		357	fiemap->fm_flags = req->int2;
		358	fiemap->fm_extent_count = count;
		359
		360	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		361	return;
		362
		363	if (req->int3 >= 0 /* not autosizing */
		364	|| !fiemap->fm_mapped_extents /* no more extents */
		365	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		366	goto done;
		367
		368	/* else we have to loop -
		369	* it would be tempting (actually I tried that first) to just query the
		370	* number of extents needed, but linux often feels like not returning all
		371	* extents, without telling us it left any out. this complicates
		372	* this quite a bit.
		373	*/
		374
		375	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		376
		377	for (;;)
		378	{
		379	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		380	char scratch[3072];
		381	struct fiemap *incmap = (struct fiemap *)scratch;
		382
		383	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		384	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		385	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		386	incmap->fm_flags = fiemap->fm_flags;
		387	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		388
		389	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		390	return;
		391
		392	if (!incmap->fm_mapped_extents)
		393	goto done;
		394
		395	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		396	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		397	errno = ENOMEM;
		398	if (!fiemap)
		399	return;
		400
		401	req->ptr1 = fiemap;
		402
		403	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		404	{
		405	struct fiemap_extent *e = incmap->fm_extents + count;
		406
		407	if (e->fe_logical + e->fe_length >= end_offset)
		408	goto done;
		409
		410	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		411
		412	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		413	goto done;
		414
		415	}
		416	}
		417
		418	done:
		419	req->result = 0;
		420
		421	#else
		422	errno = ENOSYS;
		423	#endif
		424	}
		425
		426	/*****************************************************************************/
		427
		428	static int close_fd; /* dummy fd to close fds via dup2 */
328		429
329	enum {	430	enum {
330	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	431	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
331	};	432	};
332		433
…		…
371	}	472	}
372		473
373	static SV *	474	static SV *
374	newSVaio_wd (aio_wd wd)	475	newSVaio_wd (aio_wd wd)
375	{	476	{
376	return sv_bless (newRV_noinc (newSViv ((IV)wd)), aio_wd_stash);	477	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
377	}	478	}
378		479
379	static aio_req	480	static aio_req
380	SvAIO_REQ (SV *sv)	481	SvAIO_REQ (SV *sv)
381	{	482	{
…		…
400	|| SvTYPE (SvRV (sv)) != SVt_PVMG	501	|| SvTYPE (SvRV (sv)) != SVt_PVMG
401	|| SvSTASH (SvRV (sv)) != aio_wd_stash)	502	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
402	croak ("IO::AIO: expected a working directory object as returned by aio_wd");	503	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
403		504
404	return (aio_wd)(long)SvIVX (SvRV (sv));	505	return (aio_wd)(long)SvIVX (SvRV (sv));
		506	}
		507
		508	static SV *
		509	newmortalFH (int fd, int flags)
		510	{
		511	if (fd < 0)
		512	return &PL_sv_undef;
		513
		514	GV *gv = (GV *)sv_newmortal ();
		515	char sym[64];
		516	int symlen;
		517
		518	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		519	gv_init (gv, aio_stash, sym, symlen, 0);
		520
		521	symlen = snprintf (
		522	sym,
		523	sizeof (sym),
		524	"%s&=%d",
		525	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		526	fd
		527	);
		528
		529	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		530	? (SV *)gv : &PL_sv_undef;
405	}	531	}
406		532
407	static void	533	static void
408	aio_grp_feed (aio_req grp)	534	aio_grp_feed (aio_req grp)
409	{	535	{
…		…
537	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	663	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
538	}	664	}
539	break;	665	break;
540		666
541	case EIO_OPEN:	667	case EIO_OPEN:
542	{	668	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
543	/* convert fd to fh */
544	SV *fh = &PL_sv_undef;
545
546	if (req->result >= 0)
547	{
548	GV *gv = (GV *)sv_newmortal ();
549	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
550	char sym [64];
551	int symlen;
552
553	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
554	gv_init (gv, aio_stash, sym, symlen, 0);
555
556	symlen = snprintf (
557	sym,
558	sizeof (sym),
559	"%s&=%d",
560	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
561	(int)req->result
562	);
563
564	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
565	fh = (SV *)gv;
566	}
567
568	PUSHs (fh);
569	}
570	break;	669	break;
571		670
572	case EIO_STATVFS:	671	case EIO_STATVFS:
573	case EIO_FSTATVFS:	672	case EIO_FSTATVFS:
574	{	673	{
…		…
577	#ifndef _WIN32	676	#ifndef _WIN32
578	if (req->result >= 0)	677	if (req->result >= 0)
579	{	678	{
580	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	679	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
581	HV *hv = newHV ();	680	HV *hv = newHV ();
		681	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		682	* chooses to make it a struct.
		683	*/
		684	unsigned long fsid = 0;
		685	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
582		686
583	rv = sv_2mortal (newRV_noinc ((SV *)hv));	687	rv = sv_2mortal (newRV_noinc ((SV *)hv));
584		688
585	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	689	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
586	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	690	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
588	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	692	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
589	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	693	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
590	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	694	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
591	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	695	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
592	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	696	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
593	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	697	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
594	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	698	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
595	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	699	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
596	}	700	}
597	#endif	701	#endif
598		702
…		…
633	if (!(PL_laststatval = req->result))	737	if (!(PL_laststatval = req->result))
634	/* if compilation fails here then perl's Stat_t is not struct _stati64 */	738	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
635	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	739	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
636		740
637	PUSHs (sv_result);	741	PUSHs (sv_result);
		742	break;
		743
		744	case EIO_SEEK:
		745	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
638	break;	746	break;
639		747
640	case EIO_READ:	748	case EIO_READ:
641	{	749	{
642	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	750	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
645	SvSETMAGIC (req->sv2);	753	SvSETMAGIC (req->sv2);
646	PUSHs (sv_result);	754	PUSHs (sv_result);
647	}	755	}
648	break;	756	break;
649		757
		758	case EIO_SLURP:
		759	{
		760	if (req->result >= 0)
		761	{
		762	/* if length was originally not known, we steal the malloc'ed memory */
		763	if (req->flags & EIO_FLAG_PTR2_FREE)
		764	{
		765	req->flags &= ~EIO_FLAG_PTR2_FREE;
		766	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		767	}
		768	else
		769	{
		770	SvCUR_set (req->sv2, req->result);
		771	*SvEND (req->sv2) = 0;
		772	SvPOK_only (req->sv2);
		773	}
		774
		775	SvSETMAGIC (req->sv2);
		776	}
		777
		778	PUSHs (sv_result);
		779	}
		780	break;
		781
		782	case EIO_CUSTOM:
		783	if (req->feed == fiemap)
		784	{
		785	#if HAVE_FIEMAP
		786	if (!req->result)
		787	{
		788	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		789
		790	if (fiemap->fm_extent_count)
		791	{
		792	AV *av = newAV ();
		793	int i;
		794
		795	while (fiemap->fm_mapped_extents)
		796	{
		797	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		798	AV *ext_av = newAV ();
		799
		800	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		801	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		802	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		803	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		804
		805	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		806	}
		807
		808	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		809	}
		810	else
		811	{
		812	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		813	PUSHs (sv_result);
		814	}
		815	}
		816	#endif
		817	}
		818	else
		819	PUSHs (sv_result);
		820	break;
		821
		822	#if 0
		823	case EIO_CLOSE:
		824	PerlIOUnix_refcnt_dec (req->int1);
		825	break;
		826	#endif
		827
650	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	828	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
651	if (req->result > 0)	829	if (req->result > 0)
652	SvIV_set (sv_result, 0);	830	SvIV_set (sv_result, 0);
653	/* FALLTHROUGH */	831	/* FALLTHROUGH */
654		832
…		…
719	{	897	{
720	while (eio_nreqs ())	898	while (eio_nreqs ())
721	{	899	{
722	int size;	900	int size;
723		901
724	X_LOCK (reslock);	902	X_LOCK (EIO_POOL->reslock);
725	size = res_queue.size;	903	size = EIO_POOL->res_queue.size;
726	X_UNLOCK (reslock);	904	X_UNLOCK (EIO_POOL->reslock);
727		905
728	if (size)	906	if (size)
729	return;	907	return;
730		908
731	etp_maybe_start_thread ();	909	etp_maybe_start_thread (EIO_POOL);
732		910
733	s_epipe_wait (&respipe);	911	s_epipe_wait (&respipe);
734	}	912	}
735	}	913	}
736		914
…		…
757	create_respipe ();	935	create_respipe ();
758		936
759	if (eio_init (want_poll, done_poll) < 0)	937	if (eio_init (want_poll, done_poll) < 0)
760	croak ("IO::AIO: unable to initialise eio library");	938	croak ("IO::AIO: unable to initialise eio library");
761	}	939	}
762
763	/*****************************************************************************/
764
765	#if !_POSIX_MAPPED_FILES
766	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
767	# define munmap(addr,length) (errno = ENOSYS, -1)
768	#endif
769
770	#if !_POSIX_MEMORY_PROTECTION
771	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
772	# define PROT_NONE 0
773	# define PROT_WRITE 0
774	# define MAP_PRIVATE 0
775	# define MAP_SHARED 0
776	# define MAP_FIXED 0
777	#endif
778
779	#define MMAP_MAGIC PERL_MAGIC_ext
780
781	static int ecb_cold
782	mmap_free (pTHX_ SV *sv, MAGIC *mg)
783	{
784	int old_errno = errno;
785	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
786	errno = old_errno;
787
788	mg->mg_obj = 0; /* just in case */
789
790	SvREADONLY_off (sv);
791
792	if (SvPVX (sv) != mg->mg_ptr)
793	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
794
795	SvCUR_set (sv, 0);
796	SvPVX (sv) = 0;
797	SvOK_off (sv);
798
799	return 0;
800	}
801
802	static MGVTBL mmap_vtbl = {
803	0, 0, 0, 0, mmap_free
804	};
805		940
806	/*****************************************************************************/	941	/*****************************************************************************/
807		942
808	static SV *	943	static SV *
809	get_cb (SV *cb_sv)	944	get_cb (SV *cb_sv)
…		…
864	else	999	else
865	*wd = EIO_INVALID_WD;	1000	*wd = EIO_INVALID_WD;
866	}	1001	}
867	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)	1002	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
868	{	1003	{
869	*wd = SvIVX (rv);	1004	*wd = (aio_wd)(long)SvIVX (rv);
870	*wdsv = SvREFCNT_inc_NN (rv);	1005	*wdsv = SvREFCNT_inc_NN (rv);
871	*ptr = ".";	1006	*ptr = ".";
872	return; /* path set to "." */	1007	return; /* path set to "." */
873	}	1008	}
874	else	1009	else
875	croak ("IO::AIO: pathname arguments must be specified as strings, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");	1010	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
876	}	1011	}
877		1012
878	*pathsv = newSVsv (path);	1013	*pathsv = newSVsv (path);
879	*ptr = SvPVbyte_nolen (*pathsv);	1014	*ptr = SvPVbyte_nolen (*pathsv);
880	}	1015	}
…		…
905	req_set_path1 (req, fh_or_path);	1040	req_set_path1 (req, fh_or_path);
906	break;	1041	break;
907	}	1042	}
908	}	1043	}
909		1044
		1045	/*****************************************************************************/
		1046
		1047	static void
		1048	ts_set (struct timespec *ts, NV value)
		1049	{
		1050	ts->tv_sec = value;
		1051	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1052	}
		1053
		1054	static NV
		1055	ts_get (const struct timespec *ts)
		1056	{
		1057	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1058	}
		1059
		1060	/*****************************************************************************/
		1061
910	XS(boot_IO__AIO) ecb_cold;	1062	XS(boot_IO__AIO) ecb_cold;
911		1063
912	MODULE = IO::AIO PACKAGE = IO::AIO	1064	MODULE = IO::AIO PACKAGE = IO::AIO
913		1065
914	PROTOTYPES: ENABLE	1066	PROTOTYPES: ENABLE
…		…
920	IV iv;	1072	IV iv;
921	} *civ, const_iv[] = {	1073	} *civ, const_iv[] = {
922	# define const_niv(name, value) { # name, (IV) value },	1074	# define const_niv(name, value) { # name, (IV) value },
923	# define const_iv(name) { # name, (IV) name },	1075	# define const_iv(name) { # name, (IV) name },
924	# define const_eio(name) { # name, (IV) EIO_ ## name },	1076	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1077
		1078	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1079	/* the first block can be undef if missing */
		1080	const_iv (ENOSYS)
925	const_iv (EXDEV)	1081	const_iv (EXDEV)
926	const_iv (ENOSYS)	1082	const_iv (EBADR)
		1083
		1084	/* for lseek */
		1085	const_iv (SEEK_DATA)
		1086	const_iv (SEEK_HOLE)
		1087
		1088	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1089	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1090	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1091	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1092	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1093	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1094
		1095	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1096	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1097	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1098	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1099	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1100
		1101	/* the second block will be 0 when missing */
		1102	const_iv (O_ACCMODE)
		1103
927	const_iv (O_RDONLY)	1104	const_iv (O_RDONLY)
928	const_iv (O_WRONLY)	1105	const_iv (O_WRONLY)
929	const_iv (O_RDWR)	1106	const_iv (O_RDWR)
930	const_iv (O_CREAT)	1107	const_iv (O_CREAT)
931	const_iv (O_TRUNC)	1108	const_iv (O_TRUNC)
…		…
944	const_iv (O_SEARCH)	1121	const_iv (O_SEARCH)
945	const_iv (O_DIRECTORY)	1122	const_iv (O_DIRECTORY)
946	const_iv (O_DSYNC)	1123	const_iv (O_DSYNC)
947	const_iv (O_RSYNC)	1124	const_iv (O_RSYNC)
948	const_iv (O_SYNC)	1125	const_iv (O_SYNC)
		1126	const_iv (O_PATH)
		1127	const_iv (O_TMPFILE)
949	const_iv (O_TTY_INIT)	1128	const_iv (O_TTY_INIT)
950		1129
951	const_iv (S_IFIFO)	1130	const_iv (S_IFIFO)
952	const_iv (S_IFCHR)	1131	const_iv (S_IFCHR)
953	const_iv (S_IFBLK)	1132	const_iv (S_IFBLK)
…		…
955	const_iv (S_IFREG)	1134	const_iv (S_IFREG)
956	const_iv (S_IFDIR)	1135	const_iv (S_IFDIR)
957	const_iv (S_IFWHT)	1136	const_iv (S_IFWHT)
958	const_iv (S_IFSOCK)	1137	const_iv (S_IFSOCK)
959	const_iv (S_IFMT)	1138	const_iv (S_IFMT)
960
961	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
962	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
963	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
964	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
965	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
966	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
967
968	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
969	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
970	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
971	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
972	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
973		1139
974	const_iv (ST_RDONLY)	1140	const_iv (ST_RDONLY)
975	const_iv (ST_NOSUID)	1141	const_iv (ST_NOSUID)
976	const_iv (ST_NODEV)	1142	const_iv (ST_NODEV)
977	const_iv (ST_NOEXEC)	1143	const_iv (ST_NOEXEC)
…		…
987	const_iv (PROT_NONE)	1153	const_iv (PROT_NONE)
988	const_iv (PROT_EXEC)	1154	const_iv (PROT_EXEC)
989	const_iv (PROT_READ)	1155	const_iv (PROT_READ)
990	const_iv (PROT_WRITE)	1156	const_iv (PROT_WRITE)
991		1157
992	/*const_iv (MAP_FIXED)*/
993	const_iv (MAP_PRIVATE)	1158	const_iv (MAP_PRIVATE)
994	const_iv (MAP_SHARED)	1159	const_iv (MAP_SHARED)
		1160	const_iv (MAP_FIXED)
995	const_iv (MAP_ANONYMOUS)	1161	const_iv (MAP_ANONYMOUS)
996		1162
997	/* linuxish */	1163	/* linuxish */
998	const_iv (MAP_HUGETLB)
999	const_iv (MAP_LOCKED)	1164	const_iv (MAP_LOCKED)
1000	const_iv (MAP_NORESERVE)	1165	const_iv (MAP_NORESERVE)
1001	const_iv (MAP_POPULATE)	1166	const_iv (MAP_POPULATE)
1002	const_iv (MAP_NONBLOCK)	1167	const_iv (MAP_NONBLOCK)
		1168	const_iv (MAP_GROWSDOWN)
		1169	const_iv (MAP_32BIT)
		1170	const_iv (MAP_HUGETLB)
		1171	const_iv (MAP_STACK)
		1172
		1173	const_iv (MREMAP_MAYMOVE)
		1174	const_iv (MREMAP_FIXED)
		1175
		1176	const_iv (F_DUPFD_CLOEXEC)
		1177
		1178	const_iv (MSG_CMSG_CLOEXEC)
		1179	const_iv (SOCK_CLOEXEC)
		1180
		1181	const_iv (F_OFD_GETLK)
		1182	const_iv (F_OFD_SETLK)
		1183	const_iv (F_OFD_GETLKW)
		1184
		1185	const_iv (FIFREEZE)
		1186	const_iv (FITHAW)
		1187	const_iv (FITRIM)
		1188	const_iv (FICLONE)
		1189	const_iv (FICLONERANGE)
		1190	const_iv (FIDEDUPERANGE)
		1191
		1192	const_iv (FS_IOC_GETFLAGS)
		1193	const_iv (FS_IOC_SETFLAGS)
		1194	const_iv (FS_IOC_GETVERSION)
		1195	const_iv (FS_IOC_SETVERSION)
		1196	const_iv (FS_IOC_FIEMAP)
		1197	const_iv (FS_IOC_FSGETXATTR)
		1198	const_iv (FS_IOC_FSSETXATTR)
		1199	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1200	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1201	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1202
		1203	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1204
		1205	const_iv (FS_SECRM_FL)
		1206	const_iv (FS_UNRM_FL)
		1207	const_iv (FS_COMPR_FL)
		1208	const_iv (FS_SYNC_FL)
		1209	const_iv (FS_IMMUTABLE_FL)
		1210	const_iv (FS_APPEND_FL)
		1211	const_iv (FS_NODUMP_FL)
		1212	const_iv (FS_NOATIME_FL)
		1213	const_iv (FS_DIRTY_FL)
		1214	const_iv (FS_COMPRBLK_FL)
		1215	const_iv (FS_NOCOMP_FL)
		1216	const_iv (FS_ENCRYPT_FL)
		1217	const_iv (FS_BTREE_FL)
		1218	const_iv (FS_INDEX_FL)
		1219	const_iv (FS_JOURNAL_DATA_FL)
		1220	const_iv (FS_NOTAIL_FL)
		1221	const_iv (FS_DIRSYNC_FL)
		1222	const_iv (FS_TOPDIR_FL)
		1223	const_iv (FS_FL_USER_MODIFIABLE)
		1224
		1225	const_iv (FS_XFLAG_REALTIME)
		1226	const_iv (FS_XFLAG_PREALLOC)
		1227	const_iv (FS_XFLAG_IMMUTABLE)
		1228	const_iv (FS_XFLAG_APPEND)
		1229	const_iv (FS_XFLAG_SYNC)
		1230	const_iv (FS_XFLAG_NOATIME)
		1231	const_iv (FS_XFLAG_NODUMP)
		1232	const_iv (FS_XFLAG_RTINHERIT)
		1233	const_iv (FS_XFLAG_PROJINHERIT)
		1234	const_iv (FS_XFLAG_NOSYMLINKS)
		1235	const_iv (FS_XFLAG_EXTSIZE)
		1236	const_iv (FS_XFLAG_EXTSZINHERIT)
		1237	const_iv (FS_XFLAG_NODEFRAG)
		1238	const_iv (FS_XFLAG_FILESTREAM)
		1239	const_iv (FS_XFLAG_DAX)
		1240	const_iv (FS_XFLAG_HASATTR)
		1241
		1242	const_iv (FIEMAP_FLAG_SYNC)
		1243	const_iv (FIEMAP_FLAG_XATTR)
		1244	const_iv (FIEMAP_FLAGS_COMPAT)
		1245	const_iv (FIEMAP_EXTENT_LAST)
		1246	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1247	const_iv (FIEMAP_EXTENT_DELALLOC)
		1248	const_iv (FIEMAP_EXTENT_ENCODED)
		1249	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1250	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1251	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1252	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1253	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1254	const_iv (FIEMAP_EXTENT_MERGED)
		1255	const_iv (FIEMAP_EXTENT_SHARED)
		1256
		1257	const_iv (SPLICE_F_MOVE)
		1258	const_iv (SPLICE_F_NONBLOCK)
		1259	const_iv (SPLICE_F_MORE)
		1260	const_iv (SPLICE_F_GIFT)
		1261
		1262	const_iv (EFD_CLOEXEC)
		1263	const_iv (EFD_NONBLOCK)
		1264	const_iv (EFD_SEMAPHORE)
		1265
		1266	const_iv (CLOCK_REALTIME)
		1267	const_iv (CLOCK_MONOTONIC)
		1268	const_iv (CLOCK_BOOTTIME)
		1269	const_iv (CLOCK_REALTIME_ALARM)
		1270	const_iv (CLOCK_BOOTTIME_ALARM)
		1271
		1272	const_iv (TFD_NONBLOCK)
		1273	const_iv (TFD_CLOEXEC)
		1274
		1275	const_iv (TFD_TIMER_ABSTIME)
		1276	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1277
		1278	/* these are libeio constants, and are independent of gendef0 */
		1279	const_eio (SEEK_SET)
		1280	const_eio (SEEK_CUR)
		1281	const_eio (SEEK_END)
1003		1282
1004	const_eio (MCL_FUTURE)	1283	const_eio (MCL_FUTURE)
1005	const_eio (MCL_CURRENT)	1284	const_eio (MCL_CURRENT)
		1285	const_eio (MCL_ONFAULT)
1006		1286
1007	const_eio (MS_ASYNC)	1287	const_eio (MS_ASYNC)
1008	const_eio (MS_INVALIDATE)	1288	const_eio (MS_INVALIDATE)
1009	const_eio (MS_SYNC)	1289	const_eio (MS_SYNC)
1010		1290
…		…
1013	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1293	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
1014	const_eio (SYNC_FILE_RANGE_WRITE)	1294	const_eio (SYNC_FILE_RANGE_WRITE)
1015	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1295	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
1016		1296
1017	const_eio (FALLOC_FL_KEEP_SIZE)	1297	const_eio (FALLOC_FL_KEEP_SIZE)
		1298	const_eio (FALLOC_FL_PUNCH_HOLE)
		1299	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1300	const_eio (FALLOC_FL_ZERO_RANGE)
		1301	const_eio (FALLOC_FL_INSERT_RANGE)
		1302	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1303
		1304	const_eio (RENAME_NOREPLACE)
		1305	const_eio (RENAME_EXCHANGE)
		1306	const_eio (RENAME_WHITEOUT)
1018		1307
1019	const_eio (READDIR_DENTS)	1308	const_eio (READDIR_DENTS)
1020	const_eio (READDIR_DIRS_FIRST)	1309	const_eio (READDIR_DIRS_FIRST)
1021	const_eio (READDIR_STAT_ORDER)	1310	const_eio (READDIR_STAT_ORDER)
1022	const_eio (READDIR_FOUND_UNKNOWN)	1311	const_eio (READDIR_FOUND_UNKNOWN)
…		…
1040	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1329	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1041	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));	1330	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1042		1331
1043	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1332	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
1044		1333
		1334	/* allocate dummy pipe fd for aio_close */
		1335	{
		1336	int pipefd [2];
		1337
		1338	if (
		1339	#ifdef _WIN32
		1340	_pipe (pipefd, 1, _O_BINARY) < 0
		1341	#else
		1342	pipe (pipefd) < 0
		1343	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1344	#endif
		1345	|| close (pipefd [1]) < 0
		1346	)
		1347	croak ("IO::AIO: unable to create dummy pipe for aio_close");
		1348
		1349	close_fd = pipefd [0];
		1350	}
		1351
1045	reinit ();	1352	reinit ();
1046	}	1353	}
1047		1354
1048	void	1355	void
1049	reinit ()	1356	reinit ()
…		…
1090	PROTOTYPE: $	1397	PROTOTYPE: $
1091	CODE:	1398	CODE:
1092	max_outstanding = maxreqs;	1399	max_outstanding = maxreqs;
1093		1400
1094	void	1401	void
1095	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1402	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1096	PPCODE:	1403	PPCODE:
1097	{	1404	{
1098	dREQ;	1405	dREQ;
1099		1406
1100	req->type = EIO_WD_OPEN;	1407	req->type = EIO_WD_OPEN;
…		…
1102		1409
1103	REQ_SEND;	1410	REQ_SEND;
1104	}	1411	}
1105		1412
1106	void	1413	void
1107	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1414	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1108	PPCODE:	1415	PPCODE:
1109	{	1416	{
1110	dREQ;	1417	dREQ;
1111		1418
1112	req->type = EIO_OPEN;	1419	req->type = EIO_OPEN;
…		…
1116		1423
1117	REQ_SEND;	1424	REQ_SEND;
1118	}	1425	}
1119		1426
1120	void	1427	void
1121	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1428	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1122	ALIAS:	1429	ALIAS:
1123	aio_fsync = EIO_FSYNC	1430	aio_fsync = EIO_FSYNC
1124	aio_fdatasync = EIO_FDATASYNC	1431	aio_fdatasync = EIO_FDATASYNC
1125	aio_syncfs = EIO_SYNCFS	1432	aio_syncfs = EIO_SYNCFS
1126	PPCODE:	1433	PPCODE:
1127	{	1434	{
1128	int fd = s_fileno_croak (fh, 0);	1435	int fd = s_fileno_croak (fh, 0);
1129	dREQ;	1436	dREQ;
1130		1437
1131	req->type = ix;	1438	req->type = ix;
1132	req->sv1 = newSVsv (fh);	1439	req->sv1 = newSVsv (fh);
1133	req->int1 = fd;	1440	req->int1 = fd;
1134		1441
1135	REQ_SEND (req);	1442	REQ_SEND;
1136	}	1443	}
1137		1444
1138	void	1445	void
1139	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1446	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1140	PPCODE:	1447	PPCODE:
1141	{	1448	{
1142	int fd = s_fileno_croak (fh, 0);	1449	int fd = s_fileno_croak (fh, 0);
1143	dREQ;	1450	dREQ;
1144		1451
1145	req->type = EIO_SYNC_FILE_RANGE;	1452	req->type = EIO_SYNC_FILE_RANGE;
1146	req->sv1 = newSVsv (fh);	1453	req->sv1 = newSVsv (fh);
1147	req->int1 = fd;	1454	req->int1 = fd;
1148	req->offs = offset;	1455	req->offs = offset;
1149	req->size = nbytes;	1456	req->size = nbytes;
1150	req->int2 = flags;	1457	req->int2 = flags;
1151		1458
1152	REQ_SEND (req);	1459	REQ_SEND;
1153	}	1460	}
1154		1461
1155	void	1462	void
1156	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1463	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1157	PPCODE:	1464	PPCODE:
1158	{	1465	{
1159	int fd = s_fileno_croak (fh, 0);	1466	int fd = s_fileno_croak (fh, 0);
1160	dREQ;	1467	dREQ;
1161		1468
1162	req->type = EIO_FALLOCATE;	1469	req->type = EIO_FALLOCATE;
1163	req->sv1 = newSVsv (fh);	1470	req->sv1 = newSVsv (fh);
1164	req->int1 = fd;	1471	req->int1 = fd;
1165	req->int2 = mode;	1472	req->int2 = mode;
1166	req->offs = offset;	1473	req->offs = offset;
1167	req->size = len;	1474	req->size = len;
1168		1475
1169	REQ_SEND (req);	1476	REQ_SEND;
1170	}	1477	}
1171		1478
1172	void	1479	void
1173	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1480	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1174	PPCODE:	1481	PPCODE:
1175	{	1482	{
1176	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1177	int fd = s_fileno_croak (fh, 0);	1483	int fd = s_fileno_croak (fh, 0);
1178	dREQ;	1484	dREQ;
		1485	#if 0
		1486	/* partially duplicate logic in s_fileno */
		1487	SvGETMAGIC (fh);
1179		1488
1180	if (expect_false (close_fd < 0))	1489	if (SvROK (fh))
		1490	{
		1491	fh = SvRV (fh);
		1492	SvGETMAGIC (fh);
		1493	}
		1494
		1495	if (SvTYPE (fh) == SVt_PVGV)
1181	{	1496	{
1182	int pipefd [2];	1497	/* perl filehandle */
		1498	PerlIOUnix_refcnt_inc (fd);
		1499	do_close ((GV *)fh, 1);
1183		1500
1184	if (	1501	req->type = EIO_CLOSE;
1185	#ifdef _WIN32	1502	req->int1 = fd;
1186	_pipe (pipefd, 1, _O_BINARY) < 0	1503	/*req->sv2 = newSVsv (fh);*/ /* since we stole the fd, no need to keep the fh */
1187	#else
1188	pipe (pipefd) < 0
1189	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1190	#endif
1191	|| close (pipefd [1]) < 0
1192	)
1193	abort (); /*D*/
1194
1195	close_fd = pipefd [0];
1196	}	1504	}
1197		1505	else
		1506	#endif
		1507	{
		1508	/* fd number */
1198	req->type = EIO_DUP2;	1509	req->type = EIO_DUP2;
1199	req->int1 = close_fd;	1510	req->int1 = close_fd;
		1511	req->sv2 = newSVsv (fh);
		1512	req->int2 = fd;
		1513	}
		1514
		1515	REQ_SEND;
		1516	}
		1517
		1518	void
		1519	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1520	PPCODE:
		1521	{
		1522	int fd = s_fileno_croak (fh, 0);
		1523	dREQ;
		1524
		1525	req->type = EIO_SEEK;
1200	req->sv2 = newSVsv (fh);	1526	req->sv1 = newSVsv (fh);
1201	req->int2 = fd;	1527	req->int1 = fd;
		1528	req->offs = SvVAL64 (offset);
		1529	req->int2 = whence;
1202		1530
1203	REQ_SEND (req);	1531	REQ_SEND;
1204	}	1532	}
1205		1533
1206	void	1534	void
1207	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1535	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1208	ALIAS:	1536	ALIAS:
1209	aio_read = EIO_READ	1537	aio_read = EIO_READ
1210	aio_write = EIO_WRITE	1538	aio_write = EIO_WRITE
1211	PPCODE:	1539	PPCODE:
1212	{	1540	{
…		…
1228	len = svlen - dataoffset;	1556	len = svlen - dataoffset;
1229	}	1557	}
1230	else	1558	else
1231	{	1559	{
1232	/* read: check type and grow scalar as necessary */	1560	/* read: check type and grow scalar as necessary */
1233	SvUPGRADE (data, SVt_PV);	1561	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1234	svptr = SvGROW (data, len + dataoffset + 1);	1562	svptr = sv_grow (data, len + dataoffset + 1);
		1563	else if (SvCUR (data) < len + dataoffset)
		1564	croak ("length + dataoffset outside of scalar, and cannot grow");
1235	}	1565	}
1236		1566
1237	{	1567	{
1238	dREQ;	1568	dREQ;
1239		1569
…		…
1255	REQ_SEND;	1585	REQ_SEND;
1256	}	1586	}
1257	}	1587	}
1258		1588
1259	void	1589	void
		1590	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1591	ALIAS:
		1592	aio_ioctl = EIO_IOCTL
		1593	aio_fcntl = EIO_FCNTL
		1594	PPCODE:
		1595	{
		1596	int fd = s_fileno_croak (fh, 0);
		1597	char *svptr;
		1598
		1599	if (SvPOK (arg) || !SvNIOK (arg))
		1600	{
		1601	STRLEN svlen;
		1602	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1603	#ifdef IOCPARM_LEN
		1604	STRLEN need = IOCPARM_LEN (request);
		1605	#else
		1606	STRLEN need = 256;
		1607	#endif
		1608
		1609	if (svlen < need)
		1610	svptr = SvGROW (arg, need);
		1611	}
		1612	else
		1613	svptr = (char *)SvIV (arg);
		1614
		1615	{
		1616	dREQ;
		1617
		1618	req->type = ix;
		1619	req->sv1 = newSVsv (fh);
		1620	req->int1 = fd;
		1621	req->int2 = (long)request;
		1622	req->sv2 = SvREFCNT_inc (arg);
		1623	req->ptr2 = svptr;
		1624
		1625	REQ_SEND;
		1626	}
		1627	}
		1628
		1629	void
1260	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1630	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1261	ALIAS:	1631	ALIAS:
1262	aio_readlink = EIO_READLINK	1632	aio_readlink = EIO_READLINK
1263	aio_realpath = EIO_REALPATH	1633	aio_realpath = EIO_REALPATH
1264	PPCODE:	1634	PPCODE:
1265	{	1635	{
…		…
1270		1640
1271	REQ_SEND;	1641	REQ_SEND;
1272	}	1642	}
1273		1643
1274	void	1644	void
1275	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1645	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1276	PPCODE:	1646	PPCODE:
1277	{	1647	{
1278	int ifd = s_fileno_croak (in_fh , 0);	1648	int ifd = s_fileno_croak (in_fh , 0);
1279	int ofd = s_fileno_croak (out_fh, 1);	1649	int ofd = s_fileno_croak (out_fh, 1);
1280	dREQ;	1650	dREQ;
1281		1651
1282	req->type = EIO_SENDFILE;	1652	req->type = EIO_SENDFILE;
1283	req->sv1 = newSVsv (out_fh);	1653	req->sv1 = newSVsv (out_fh);
1284	req->int1 = ofd;	1654	req->int1 = ofd;
…		…
1289		1659
1290	REQ_SEND;	1660	REQ_SEND;
1291	}	1661	}
1292		1662
1293	void	1663	void
1294	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1664	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1295	PPCODE:	1665	PPCODE:
1296	{	1666	{
1297	int fd = s_fileno_croak (fh, 0);	1667	int fd = s_fileno_croak (fh, 0);
1298	dREQ;	1668	dREQ;
1299		1669
1300	req->type = EIO_READAHEAD;	1670	req->type = EIO_READAHEAD;
1301	req->sv1 = newSVsv (fh);	1671	req->sv1 = newSVsv (fh);
1302	req->int1 = fd;	1672	req->int1 = fd;
…		…
1305		1675
1306	REQ_SEND;	1676	REQ_SEND;
1307	}	1677	}
1308		1678
1309	void	1679	void
1310	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1680	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1311	ALIAS:	1681	ALIAS:
1312	aio_stat = EIO_STAT	1682	aio_stat = EIO_STAT
1313	aio_lstat = EIO_LSTAT	1683	aio_lstat = EIO_LSTAT
1314	aio_statvfs = EIO_STATVFS	1684	aio_statvfs = EIO_STATVFS
1315	PPCODE:	1685	PPCODE:
…		…
1319	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1689	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1320		1690
1321	REQ_SEND;	1691	REQ_SEND;
1322	}	1692	}
1323		1693
		1694	void
		1695	st_xtime ()
		1696	ALIAS:
		1697	st_atime = 0x01
		1698	st_mtime = 0x02
		1699	st_ctime = 0x04
		1700	st_btime = 0x08
		1701	st_xtime = 0x0f
		1702	PPCODE:
		1703	EXTEND (SP, 4);
		1704	if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1705	if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1706	if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1707	if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
		1708
		1709	void
		1710	st_xtimensec ()
		1711	ALIAS:
		1712	st_atimensec = 0x01
		1713	st_mtimensec = 0x02
		1714	st_ctimensec = 0x04
		1715	st_btimensec = 0x08
		1716	st_xtimensec = 0x0f
		1717	st_btimesec = 0x10
		1718	st_gen = 0x20
		1719	PPCODE:
		1720	EXTEND (SP, 4);
		1721	if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
		1722	if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
		1723	if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
		1724	if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
		1725	if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
		1726	if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
		1727
1324	UV	1728	UV
1325	major (UV dev)	1729	major (UV dev)
1326	ALIAS:	1730	ALIAS:
1327	minor = 1	1731	minor = 1
1328	CODE:	1732	CODE:
1329	RETVAL = ix ? major (dev) : minor (dev);	1733	RETVAL = ix ? minor (dev) : major (dev);
1330	OUTPUT:	1734	OUTPUT:
1331	RETVAL	1735	RETVAL
1332		1736
1333	UV	1737	UV
1334	makedev (UV maj, UV min)	1738	makedev (UV maj, UV min)
…		…
1336	RETVAL = makedev (maj, min);	1740	RETVAL = makedev (maj, min);
1337	OUTPUT:	1741	OUTPUT:
1338	RETVAL	1742	RETVAL
1339		1743
1340	void	1744	void
1341	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1745	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1342	PPCODE:	1746	PPCODE:
1343	{	1747	{
1344	dREQ;	1748	dREQ;
1345		1749
1346	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1750	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1349		1753
1350	REQ_SEND;	1754	REQ_SEND;
1351	}	1755	}
1352		1756
1353	void	1757	void
1354	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1758	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1355	PPCODE:	1759	PPCODE:
1356	{	1760	{
1357	dREQ;	1761	dREQ;
1358		1762
1359	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1763	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1361		1765
1362	REQ_SEND;	1766	REQ_SEND;
1363	}	1767	}
1364		1768
1365	void	1769	void
1366	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1770	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1367	PPCODE:	1771	PPCODE:
1368	{	1772	{
1369	dREQ;	1773	dREQ;
1370		1774
1371	req->int2 = mode;	1775	req->int2 = mode;
…		…
1373		1777
1374	REQ_SEND;	1778	REQ_SEND;
1375	}	1779	}
1376		1780
1377	void	1781	void
1378	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1782	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1379	PPCODE:	1783	PPCODE:
1380	{	1784	{
1381	dREQ;	1785	dREQ;
1382		1786
1383	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1787	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1386		1790
1387	REQ_SEND;	1791	REQ_SEND;
1388	}	1792	}
1389		1793
1390	void	1794	void
1391	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1795	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1392	PPCODE:	1796	PPCODE:
1393	{	1797	{
1394	dREQ;	1798	dREQ;
1395		1799
1396	req->type = EIO_READDIR;	1800	req->type = EIO_READDIR;
…		…
1403		1807
1404	REQ_SEND;	1808	REQ_SEND;
1405	}	1809	}
1406		1810
1407	void	1811	void
1408	aio_mkdir (SV8 *pathname, int mode, SV *callback=&PL_sv_undef)	1812	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
1409	PPCODE:	1813	PPCODE:
1410	{	1814	{
1411	dREQ;	1815	dREQ;
1412		1816
1413	req->type = EIO_MKDIR;	1817	req->type = EIO_MKDIR;
…		…
1416		1820
1417	REQ_SEND;	1821	REQ_SEND;
1418	}	1822	}
1419		1823
1420	void	1824	void
1421	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1825	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1422	ALIAS:	1826	ALIAS:
1423	aio_unlink = EIO_UNLINK	1827	aio_unlink = EIO_UNLINK
1424	aio_rmdir = EIO_RMDIR	1828	aio_rmdir = EIO_RMDIR
1425	aio_readdir = EIO_READDIR	1829	aio_readdir = EIO_READDIR
1426	PPCODE:	1830	PPCODE:
…		…
1432		1836
1433	REQ_SEND;	1837	REQ_SEND;
1434	}	1838	}
1435		1839
1436	void	1840	void
1437	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1841	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1438	ALIAS:	1842	ALIAS:
1439	aio_link = EIO_LINK	1843	aio_link = EIO_LINK
1440	aio_symlink = EIO_SYMLINK	1844	aio_symlink = EIO_SYMLINK
1441	aio_rename = EIO_RENAME	1845	aio_rename = EIO_RENAME
1442	PPCODE:	1846	PPCODE:
1443	{	1847	{
		1848	eio_wd wd2 = 0;
1444	dREQ;	1849	dREQ;
1445	eio_wd wd2 = 0;
1446		1850
1447	req->type = ix;	1851	req->type = ix;
1448	req_set_path1 (req, oldpath);	1852	req_set_path1 (req, oldpath);
1449	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);	1853	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1450	req->int3 = (long)wd2;	1854	req->int3 = (long)wd2;
1451		1855
1452	REQ_SEND;	1856	REQ_SEND;
1453	}	1857	}
1454		1858
1455	void	1859	void
		1860	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1861	PPCODE:
		1862	{
		1863	eio_wd wd2 = 0;
		1864	dREQ;
		1865
		1866	req->type = EIO_RENAME;
		1867	req_set_path1 (req, oldpath);
		1868	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1869	req->int2 = flags;
		1870	req->int3 = (long)wd2;
		1871
		1872	REQ_SEND;
		1873	}
		1874
		1875	void
1456	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1876	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1457	PPCODE:	1877	PPCODE:
1458	{	1878	{
1459	dREQ;	1879	dREQ;
1460		1880
1461	req->type = EIO_MKNOD;	1881	req->type = EIO_MKNOD;
…		…
1465		1885
1466	REQ_SEND;	1886	REQ_SEND;
1467	}	1887	}
1468		1888
1469	void	1889	void
1470	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1890	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1471	ALIAS:	1891	ALIAS:
1472	aio_mtouch = EIO_MTOUCH	1892	aio_mtouch = EIO_MTOUCH
1473	aio_msync = EIO_MSYNC	1893	aio_msync = EIO_MSYNC
1474	PPCODE:	1894	PPCODE:
1475	{	1895	{
1476	STRLEN svlen;	1896	STRLEN svlen;
1477	char *svptr = SvPVbyte (data, svlen);	1897	char *svptr = SvPVbyte (data, svlen);
1478	UV len = SvUV (length);	1898	UV len = SvUV (length);
		1899
		1900	if (flags < 0)
		1901	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1479		1902
1480	if (offset < 0)	1903	if (offset < 0)
1481	offset += svlen;	1904	offset += svlen;
1482		1905
1483	if (offset < 0 || offset > svlen)	1906	if (offset < 0 || offset > svlen)
…		…
1498	REQ_SEND;	1921	REQ_SEND;
1499	}	1922	}
1500	}	1923	}
1501		1924
1502	void	1925	void
1503	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1926	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1504	PPCODE:	1927	PPCODE:
1505	{	1928	{
1506	STRLEN svlen;	1929	STRLEN svlen;
1507	char *svptr = SvPVbyte (data, svlen);	1930	char *svptr = SvPVbyte (data, svlen);
1508	UV len = SvUV (length);	1931	UV len = SvUV (length);
…		…
1527	REQ_SEND;	1950	REQ_SEND;
1528	}	1951	}
1529	}	1952	}
1530		1953
1531	void	1954	void
1532	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1955	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1533	PPCODE:	1956	PPCODE:
1534	{	1957	{
1535	dREQ;	1958	dREQ;
1536		1959
1537	req->type = EIO_MLOCKALL;	1960	req->type = EIO_MLOCKALL;
…		…
1539		1962
1540	REQ_SEND;	1963	REQ_SEND;
1541	}	1964	}
1542		1965
1543	void	1966	void
		1967	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1968	PPCODE:
		1969	{
		1970	int fd = s_fileno_croak (fh, 0);
		1971	dREQ;
		1972
		1973	req->type = EIO_CUSTOM;
		1974	req->sv1 = newSVsv (fh);
		1975	req->int1 = fd;
		1976
		1977	req->feed = fiemap;
		1978	#if HAVE_FIEMAP
		1979	/* keep our fingers crossed that the next two types are 64 bit */
		1980	req->offs = start;
		1981	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1982	req->int2 = flags;
		1983	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1984	#endif
		1985
		1986	REQ_SEND;
		1987	}
		1988
		1989	void
		1990	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1991	PPCODE:
		1992	{
		1993	char *svptr = 0;
		1994
		1995	sv_clear_foreign (data);
		1996
		1997	if (length) /* known length, directly read into scalar */
		1998	{
		1999	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		2000	svptr = sv_grow (data, length + 1);
		2001	else if (SvCUR (data) < length)
		2002	croak ("length outside of scalar, and cannot grow");
		2003	else
		2004	svptr = SvPVbyte_nolen (data);
		2005	}
		2006
		2007	{
		2008	dREQ;
		2009
		2010	req->type = EIO_SLURP;
		2011	req_set_path1 (req, pathname);
		2012	req->offs = offset;
		2013	req->size = length;
		2014	req->sv2 = SvREFCNT_inc (data);
		2015	req->ptr2 = svptr;
		2016
		2017	if (!SvREADONLY (data))
		2018	{
		2019	SvREADONLY_on (data);
		2020	req->flags |= FLAG_SV2_RO_OFF;
		2021	}
		2022
		2023	REQ_SEND;
		2024	}
		2025	}
		2026
		2027	void
1544	aio_busy (double delay, SV *callback=&PL_sv_undef)	2028	aio_busy (double delay, SV *callback = &PL_sv_undef)
1545	PPCODE:	2029	PPCODE:
1546	{	2030	{
1547	dREQ;	2031	dREQ;
1548		2032
1549	req->type = EIO_BUSY;	2033	req->type = EIO_BUSY;
…		…
1551		2035
1552	REQ_SEND;	2036	REQ_SEND;
1553	}	2037	}
1554		2038
1555	void	2039	void
1556	aio_group (SV *callback=&PL_sv_undef)	2040	aio_group (SV *callback = &PL_sv_undef)
1557	PPCODE:	2041	PPCODE:
1558	{	2042	{
1559	dREQ;	2043	dREQ;
1560		2044
1561	req->type = EIO_GROUP;	2045	req->type = EIO_GROUP;
1562		2046
		2047	PUTBACK;
1563	req_submit (req);	2048	req_submit (req);
		2049	SPAGAIN;
		2050
1564	XPUSHs (req_sv (req, aio_grp_stash));	2051	XPUSHs (req_sv (req, aio_grp_stash));
1565	}	2052	}
1566		2053
1567	void	2054	void
1568	aio_nop (SV *callback=&PL_sv_undef)	2055	aio_nop (SV *callback = &PL_sv_undef)
1569	ALIAS:	2056	ALIAS:
1570	aio_nop = EIO_NOP	2057	aio_nop = EIO_NOP
1571	aio_sync = EIO_SYNC	2058	aio_sync = EIO_SYNC
1572	PPCODE:	2059	PPCODE:
1573	{	2060	{
…		…
1577		2064
1578	REQ_SEND;	2065	REQ_SEND;
1579	}	2066	}
1580		2067
1581	int	2068	int
1582	aioreq_pri (int pri = 0)	2069	aioreq_pri (int pri = NO_INIT)
1583	CODE:	2070	CODE:
1584	RETVAL = next_pri;	2071	RETVAL = next_pri;
1585	if (items > 0)	2072	if (items > 0)
1586	{	2073	{
1587	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2074	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1677	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2164	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1678	OUTPUT:	2165	OUTPUT:
1679	RETVAL	2166	RETVAL
1680		2167
1681	void	2168	void
1682	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2169	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1683	PPCODE:	2170	PPCODE:
1684	sv_unmagic (scalar, MMAP_MAGIC);	2171	sv_clear_foreign (scalar);
1685	{	2172	{
1686	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2173	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1687	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2174	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1688	if (addr == (void *)-1)	2175	if (addr == (void *)-1)
1689	XSRETURN_NO;	2176	XSRETURN_NO;
1690		2177
1691	sv_force_normal (scalar);	2178	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1692
1693	/* we store the length in mg_obj, as namlen is I32 :/ */
1694	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1695	->mg_obj = (SV *)length;
1696
1697	SvUPGRADE (scalar, SVt_PV); /* nop... */
1698		2179
1699	if (!(prot & PROT_WRITE))	2180	if (!(prot & PROT_WRITE))
1700	SvREADONLY_on (scalar);	2181	SvREADONLY_on (scalar);
1701		2182
1702	if (SvLEN (scalar))
1703	Safefree (SvPVX (scalar));
1704
1705	SvPVX (scalar) = (char *)addr;
1706	SvCUR_set (scalar, length);
1707	SvLEN_set (scalar, 0);
1708	SvPOK_only (scalar);
1709
1710	XSRETURN_YES;	2183	XSRETURN_YES;
1711	}	2184	}
1712		2185
1713	void	2186	void
1714	munmap (SV *scalar)	2187	munmap (SV *scalar)
1715	CODE:	2188	CODE:
1716	sv_unmagic (scalar, MMAP_MAGIC);	2189	sv_clear_foreign (scalar);
		2190
		2191	SV *
		2192	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2193	CODE:
		2194	{
		2195	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2196	void *new;
		2197
		2198	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2199	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2200
		2201	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2202
		2203	RETVAL = &PL_sv_no;
		2204
		2205	if (new != (void *)-1)
		2206	{
		2207	RETVAL = new == (void *)mg->mg_ptr
		2208	? newSVpvn ("0 but true", 10)
		2209	: &PL_sv_yes;
		2210
		2211	mg->mg_ptr = (char *)new;
		2212	mg->mg_obj = (SV *)new_length;
		2213
		2214	SvPVX (scalar) = mg->mg_ptr;
		2215	SvCUR_set (scalar, new_length);
		2216	}
		2217	}
		2218	OUTPUT:
		2219	RETVAL
1717		2220
1718	int	2221	int
1719	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2222	madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1720	ALIAS:	2223	ALIAS:
1721	mprotect = 1	2224	mprotect = 1
1722	CODE:	2225	CODE:
1723	{	2226	{
1724	STRLEN svlen;	2227	STRLEN svlen;
1725	void *addr = SvPVbyte (scalar, svlen);	2228	void *addr = SvPVbyte (scalar, svlen);
1726	size_t len = SvUV (length);	2229	STRLEN len = SvUV (length);
1727		2230
1728	if (offset < 0)	2231	if (offset < 0)
1729	offset += svlen;	2232	offset += svlen;
1730		2233
1731	if (offset < 0 || offset > svlen)	2234	if (offset < 0 || offset > svlen)
…		…
1745	}	2248	}
1746	OUTPUT:	2249	OUTPUT:
1747	RETVAL	2250	RETVAL
1748		2251
1749	int	2252	int
1750	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2253	munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
1751	CODE:	2254	CODE:
1752	{	2255	{
1753	STRLEN svlen;	2256	STRLEN svlen;
1754	void *addr = SvPVbyte (scalar, svlen);	2257	void *addr = SvPVbyte (scalar, svlen);
1755	size_t len = SvUV (length);	2258	size_t len = SvUV (length);
1756		2259
1757	if (offset < 0)	2260	if (offset < 0)
1758	offset += svlen;	2261	offset += svlen;
1759		2262
…		…
1766	addr = (void *)(((intptr_t)addr) + offset);	2269	addr = (void *)(((intptr_t)addr) + offset);
1767	eio_page_align (&addr, &len);	2270	eio_page_align (&addr, &len);
1768	#if _POSIX_MEMLOCK_RANGE	2271	#if _POSIX_MEMLOCK_RANGE
1769	RETVAL = munlock (addr, len);	2272	RETVAL = munlock (addr, len);
1770	#else	2273	#else
1771	RETVAL = ((errno = ENOSYS), -1);	2274	RETVAL = EIO_ENOSYS ();
1772	#endif	2275	#endif
1773	}	2276	}
1774	OUTPUT:	2277	OUTPUT:
		2278	RETVAL
		2279
		2280	int
		2281	mlockall (int flags)
		2282	PROTOTYPE: $;
		2283	CODE:
		2284	RETVAL = eio_mlockall_sync (flags);
		2285	OUTPUT:
1775	RETVAL	2286	RETVAL
1776		2287
1777	int	2288	int
1778	munlockall ()	2289	munlockall ()
1779	CODE:	2290	CODE:
1780	#if _POSIX_MEMLOCK	2291	#if _POSIX_MEMLOCK
1781	munlockall ();	2292	munlockall ();
1782	#else	2293	#else
1783	RETVAL = -1;	2294	RETVAL = EIO_ENOSYS ();
1784	errno = ENOSYS;
1785	#endif	2295	#endif
1786	OUTPUT:	2296	OUTPUT:
1787	RETVAL	2297	RETVAL
		2298
		2299	int
		2300	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2301	CODE:
		2302	{
		2303	#if HAVE_LINUX_SPLICE
		2304	loff_t off_in_, off_out_;
		2305	RETVAL = splice (
		2306	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2307	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2308	length, flags
		2309	);
		2310	#else
		2311	RETVAL = EIO_ENOSYS ();
		2312	#endif
		2313	}
		2314	OUTPUT:
		2315	RETVAL
		2316
		2317	int
		2318	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2319	CODE:
		2320	#if HAVE_LINUX_SPLICE
		2321	RETVAL = tee (rfh, wfh, length, flags);
		2322	#else
		2323	RETVAL = EIO_ENOSYS ();
		2324	#endif
		2325	OUTPUT:
		2326	RETVAL
		2327
		2328	int
		2329	pipesize (aio_rfd rfh, int new_size = -1)
		2330	PROTOTYPE: $;$
		2331	CODE:
		2332	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2333	if (new_size >= 0)
		2334	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2335	else
		2336	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2337	#else
		2338	errno = ENOSYS;
		2339	RETVAL = -1;
		2340	#endif
		2341	OUTPUT:
		2342	RETVAL
		2343
		2344	void
		2345	pipe2 (int flags = 0)
		2346	PROTOTYPE: ;$
		2347	PPCODE:
		2348	{
		2349	int fd[2];
		2350	int res;
		2351
		2352	if (flags)
		2353	#if HAVE_PIPE2
		2354	res = pipe2 (fd, flags);
		2355	#else
		2356	res = (errno = ENOSYS, -1);
		2357	#endif
		2358	else
		2359	res = pipe (fd);
		2360
		2361	if (!res)
		2362	{
		2363	EXTEND (SP, 2);
		2364	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2365	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2366	}
		2367	}
		2368
		2369	void
		2370	eventfd (unsigned int initval = 0, int flags = 0)
		2371	PPCODE:
		2372	{
		2373	int fd;
		2374	#if HAVE_EVENTFD
		2375	fd = eventfd (initval, flags);
		2376	#else
		2377	fd = (errno = ENOSYS, -1);
		2378	#endif
		2379
		2380	XPUSHs (newmortalFH (fd, O_RDWR));
		2381	}
		2382
		2383	void
		2384	timerfd_create (int clockid, int flags = 0)
		2385	PPCODE:
		2386	{
		2387	int fd;
		2388	#if HAVE_TIMERFD
		2389	fd = timerfd_create (clockid, flags);
		2390	#else
		2391	fd = (errno = ENOSYS, -1);
		2392	#endif
		2393
		2394	XPUSHs (newmortalFH (fd, O_RDWR));
		2395	}
		2396
		2397	void
		2398	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2399	PPCODE:
		2400	{
		2401	int fd = s_fileno_croak (fh, 0);
		2402	#if HAVE_TIMERFD
		2403	int res;
		2404	struct itimerspec its, ots;
		2405
		2406	ts_set (&its.it_interval, interval);
		2407	ts_set (&its.it_value , value);
		2408	res = timerfd_settime (fd, flags, &its, &ots);
		2409
		2410	if (!res)
		2411	{
		2412	EXTEND (SP, 2);
		2413	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2414	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2415	}
		2416	#else
		2417	errno = ENOSYS;
		2418	#endif
		2419	}
		2420
		2421	void
		2422	timerfd_gettime (SV *fh)
		2423	PPCODE:
		2424	{
		2425	int fd = s_fileno_croak (fh, 0);
		2426	#if HAVE_TIMERFD
		2427	int res;
		2428	struct itimerspec ots;
		2429	res = timerfd_gettime (fd, &ots);
		2430
		2431	if (!res)
		2432	{
		2433	EXTEND (SP, 2);
		2434	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2435	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2436	}
		2437	#else
		2438	errno = ENOSYS;
		2439	#endif
		2440	}
		2441
		2442	UV
		2443	get_fdlimit ()
		2444	CODE:
		2445	#if HAVE_RLIMITS
		2446	struct rlimit rl;
		2447	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2448	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2449	#endif
		2450	XSRETURN_UNDEF;
		2451	OUTPUT:
		2452	RETVAL
		2453
		2454	void
		2455	min_fdlimit (UV limit = 0x7fffffffU)
		2456	CODE:
		2457	{
		2458	#if HAVE_RLIMITS
		2459	struct rlimit rl;
		2460	rlim_t orig_rlim_max;
		2461	UV bit;
		2462
		2463	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2464	goto fail;
		2465
		2466	if (rl.rlim_cur == RLIM_INFINITY)
		2467	XSRETURN_YES;
		2468
		2469	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2470
		2471	if (rl.rlim_cur < limit)
		2472	{
		2473	rl.rlim_cur = limit;
		2474
		2475	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2476	rl.rlim_max = rl.rlim_cur;
		2477	}
		2478
		2479	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2480	XSRETURN_YES;
		2481
		2482	if (errno == EPERM)
		2483	{
		2484	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2485	/* our limit overflows a system-wide limit */
		2486	/* try an adaptive algorithm, but do not lower the hardlimit */
		2487	rl.rlim_max = 0;
		2488	for (bit = 0x40000000U; bit; bit >>= 1)
		2489	{
		2490	rl.rlim_max |= bit;
		2491	rl.rlim_cur = rl.rlim_max;
		2492
		2493	/* nevr decrease the hard limit */
		2494	if (rl.rlim_max < orig_rlim_max)
		2495	break;
		2496
		2497	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2498	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2499	}
		2500
		2501	/* now, raise the soft limit to the max permitted */
		2502	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2503	{
		2504	rl.rlim_cur = rl.rlim_max;
		2505	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2506	errno = EPERM;
		2507	}
		2508	}
		2509	#endif
		2510	fail:
		2511	XSRETURN_UNDEF;
		2512	}
1788		2513
1789	void _on_next_submit (SV *cb)	2514	void _on_next_submit (SV *cb)
1790	CODE:	2515	CODE:
1791	SvREFCNT_dec (on_next_submit);	2516	SvREFCNT_dec (on_next_submit);
1792	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2517	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1827	cancel (aio_req_ornot req)	2552	cancel (aio_req_ornot req)
1828	CODE:	2553	CODE:
1829	eio_cancel (req);	2554	eio_cancel (req);
1830		2555
1831	void	2556	void
1832	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2557	cb (aio_req_ornot req, SV *callback = NO_INIT)
1833	PPCODE:	2558	PPCODE:
1834	{	2559	{
1835	if (GIMME_V != G_VOID)	2560	if (GIMME_V != G_VOID)
1836	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2561	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1837		2562
1838	if (items > 1)	2563	if (items > 1)
1839	{	2564	{
1840	SV *cb_cv =get_cb (callback);	2565	SV *cb_cv = get_cb (callback);
1841		2566
1842	SvREFCNT_dec (req->callback);	2567	SvREFCNT_dec (req->callback);
1843	req->callback = SvREFCNT_inc (cb_cv);	2568	req->callback = SvREFCNT_inc (cb_cv);
1844	}	2569	}
1845	}	2570	}
…		…
1902	limit (aio_req grp, int limit)	2627	limit (aio_req grp, int limit)
1903	CODE:	2628	CODE:
1904	eio_grp_limit (grp, limit);	2629	eio_grp_limit (grp, limit);
1905		2630
1906	void	2631	void
1907	feed (aio_req grp, SV *callback=&PL_sv_undef)	2632	feed (aio_req grp, SV *callback = &PL_sv_undef)
1908	CODE:	2633	CODE:
1909	{	2634	{
1910	SvREFCNT_dec (grp->sv2);	2635	SvREFCNT_dec (grp->sv2);
1911	grp->sv2 = newSVsv (callback);	2636	grp->sv2 = newSVsv (callback);
1912	grp->feed = aio_grp_feed;	2637	grp->feed = aio_grp_feed;

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