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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.193 by root, Mon Jul 25 16:51:07 2011 UTC vs.
Revision 1.253 by root, Tue Feb 20 04:32:59 2018 UTC

…		…
17	#include <fcntl.h>	17	#include <fcntl.h>
18	#include <sched.h>	18	#include <sched.h>
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
		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
22	#endif	36	#endif
23		37
24	/* perl namespace pollution */	38	/* perl namespace pollution */
25	#undef VERSION	39	#undef VERSION
26		40
…		…
62	#undef dup	76	#undef dup
63	#undef dup2	77	#undef dup2
64	#undef abort	78	#undef abort
65	#undef pipe	79	#undef pipe
66		80
		81	#define EIO_STRUCT_STAT struct _stati64
		82	#define EIO_STRUCT_STATI64
		83
67	#else	84	#else
68		85
69	#include <sys/time.h>	86	#include <sys/time.h>
70	#include <sys/select.h>	87	#include <sys/select.h>
71	#include <unistd.h>	88	#include <unistd.h>
72	#include <utime.h>	89	#include <utime.h>
73	#include <signal.h>	90	#include <signal.h>
74		91
75	#endif
76
77	#define EIO_STRUCT_STAT Stat_t	92	#define EIO_STRUCT_STAT Stat_t
78		93
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	94	#endif
89		95
90	/*****************************************************************************/	96	/*****************************************************************************/
91		97
92	#if __GNUC__ >= 3	98	#if __GNUC__ >= 3
…		…
98	#define expect_false(expr) expect ((expr) != 0, 0)	104	#define expect_false(expr) expect ((expr) != 0, 0)
99	#define expect_true(expr) expect ((expr) != 0, 1)	105	#define expect_true(expr) expect ((expr) != 0, 1)
100		106
101	/*****************************************************************************/	107	/*****************************************************************************/
102		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
103	typedef SV SV8; /* byte-sv, used for argument-checking */	120	typedef SV SV8; /* byte-sv, used for argument-checking */
104	typedef int aio_rfd; /* read file desriptor */	121	typedef int aio_rfd; /* read file desriptor */
105	typedef int aio_wfd; /* write file descriptor */	122	typedef int aio_wfd; /* write file descriptor */
106		123
107	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	124	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
108		125
109	#define EIO_REQ_MEMBERS \	126	#define EIO_REQ_MEMBERS \
110	SV *callback; \	127	SV *callback; \
111	SV *sv1, *sv2; \	128	SV *sv1, *sv2; \
		129	SV *sv3, *sv4; \
112	STRLEN stroffset; \	130	STRLEN stroffset; \
113	SV *self;	131	SV *self;
114		132
115	#define EIO_NO_WRAPPERS 1	133	#define EIO_NO_WRAPPERS 1
116		134
117	#include "libeio/config.h"
118	#include "libeio/eio.h"	135	#include "libeio/eio.h"
119		136
120	static int req_invoke (eio_req *req);	137	static int req_invoke (eio_req *req);
121	#define EIO_FINISH(req) req_invoke (req)	138	#define EIO_FINISH(req) req_invoke (req)
122	static void req_destroy (eio_req *grp);	139	static void req_destroy (eio_req *grp);
123	#define EIO_DESTROY(req) req_destroy (req)	140	#define EIO_DESTROY(req) req_destroy (req)
124		141
125	#include "libeio/eio.c"	142	#include "libeio/eio.c"
126		143
127	/* Linux/others */
128	#ifndef O_ASYNC
129	# define O_ASYNC 0
130	#endif
131	#ifndef O_DIRECT
132	# define O_DIRECT 0
133	#endif
134	#ifndef O_NOATIME
135	# define O_NOATIME 0
136	#endif
137
138	/* POSIX */
139	#ifndef O_CLOEXEC
140	# define O_CLOEXEC 0
141	#endif
142	#ifndef O_NOFOLLOW
143	# define O_NOFOLLOW 0
144	#endif
145	#ifndef O_NOCTTY
146	# define O_NOCTTY 0
147	#endif
148	#ifndef O_NONBLOCK
149	# define O_NONBLOCK 0
150	#endif
151	#ifndef O_EXEC
152	# define O_EXEC 0
153	#endif
154	#ifndef O_SEARCH
155	# define O_SEARCH 0
156	#endif
157	#ifndef O_DIRECTORY
158	# define O_DIRECTORY 0
159	#endif
160	#ifndef O_DSYNC
161	# define O_DSYNC 0
162	#endif
163	#ifndef O_RSYNC
164	# define O_RSYNC 0
165	#endif
166	#ifndef O_SYNC
167	# define O_SYNC 0
168	#endif
169	#ifndef O_TTY_INIT
170	# define O_TTY_INIT 0
171	#endif
172
173	#ifndef POSIX_FADV_NORMAL
174	# define POSIX_FADV_NORMAL 0
175	#endif
176	#ifndef POSIX_FADV_SEQUENTIAL
177	# define POSIX_FADV_SEQUENTIAL 0
178	#endif
179	#ifndef POSIX_FADV_RANDOM
180	# define POSIX_FADV_RANDOM 0
181	#endif
182	#ifndef POSIX_FADV_NOREUSE
183	# define POSIX_FADV_NOREUSE 0
184	#endif
185	#ifndef POSIX_FADV_WILLNEED
186	# define POSIX_FADV_WILLNEED 0
187	#endif
188	#ifndef POSIX_FADV_DONTNEED
189	# define POSIX_FADV_DONTNEED 0
190	#endif
191
192	#if !HAVE_POSIX_FADVISE	144	#if !HAVE_POSIX_FADVISE
193	# 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 */
194	#endif	146	#endif
195		147
196	#ifndef POSIX_MADV_NORMAL
197	# define POSIX_MADV_NORMAL 0
198	#endif
199	#ifndef POSIX_MADV_SEQUENTIAL
200	# define POSIX_MADV_SEQUENTIAL 0
201	#endif
202	#ifndef POSIX_MADV_RANDOM
203	# define POSIX_MADV_RANDOM 0
204	#endif
205	#ifndef POSIX_MADV_WILLNEED
206	# define POSIX_MADV_WILLNEED 0
207	#endif
208	#ifndef POSIX_MADV_DONTNEED
209	# define POSIX_MADV_DONTNEED 0
210	#endif
211
212	#if !HAVE_POSIX_MADVISE	148	#if !HAVE_POSIX_MADVISE
213	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	149	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
214	#endif
215
216	#ifndef PROT_NONE
217	# define PROT_NONE 0
218	#endif
219	#ifndef PROT_READ
220	# define PROT_READ 0
221	#endif
222	#ifndef PROT_WRITE
223	# define PROT_READ 0
224	#endif
225	#ifndef PROT_EXEC
226	# define PROT_EXEC 0
227	#endif
228
229	#ifndef ST_RDONLY
230	# define ST_RDONLY 0
231	#endif
232	#ifndef ST_NOSUID
233	# define ST_NOSUID 0
234	#endif
235	#ifndef ST_NODEV
236	# define ST_NODEV 0
237	#endif
238	#ifndef ST_NOEXEC
239	# define ST_NOEXEC 0
240	#endif
241	#ifndef ST_SYNCHRONOUS
242	# define ST_SYNCHRONOUS 0
243	#endif
244	#ifndef ST_MANDLOCK
245	# define ST_MANDLOCK 0
246	#endif
247	#ifndef ST_WRITE
248	# define ST_WRITE 0
249	#endif
250	#ifndef ST_APPEND
251	# define ST_APPEND 0
252	#endif
253	#ifndef ST_IMMUTABLE
254	# define ST_IMMUTABLE 0
255	#endif
256	#ifndef ST_NOATIME
257	# define ST_NOATIME 0
258	#endif
259	#ifndef ST_NODIRATIME
260	# define ST_NODIRATIME 0
261	#endif
262	#ifndef ST_RELATIME
263	# define ST_RELATIME 0
264	#endif
265
266	#ifndef S_IFIFO
267	# define S_IFIFO 0
268	#endif
269	#ifndef S_IFCHR
270	# define S_IFCHR 0
271	#endif
272	#ifndef S_IFBLK
273	# define S_IFBLK 0
274	#endif
275	#ifndef S_IFLNK
276	# define S_IFLNK 0
277	#endif
278	#ifndef S_IFREG
279	# define S_IFREG 0
280	#endif
281	#ifndef S_IFDIR
282	# define S_IFDIR 0
283	#endif
284	#ifndef S_IFWHT
285	# define S_IFWHT 0
286	#endif
287	#ifndef S_IFSOCK
288	# define S_IFSOCK 0
289	#endif	150	#endif
290		151
291	#ifndef MAP_ANONYMOUS	152	#ifndef MAP_ANONYMOUS
292	# ifdef MAP_ANON	153	# ifdef MAP_ANON
293	# define MAP_ANONYMOUS MAP_ANON	154	# define MAP_ANONYMOUS MAP_ANON
294	# else	155	# else
295	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	156	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
296	# endif	157	# endif
297	#endif	158	#endif
298	#ifndef MAP_HUGETLB	159
299	# define MAP_HUGETLB 0	160	/* defines all sorts of constants to 0 unless they are already defined */
300	#endif	161	/* also provides const_iv_ and const_niv_ macros for them */
301	#ifndef MAP_LOCKED	162	#include "def0.h"
302	# define MAP_LOCKED 0
303	#endif
304	#ifndef MAP_NORESERVE
305	# define MAP_NORESERVE 0
306	#endif
307	#ifndef MAP_POPULATE
308	# define MAP_POPULATE 0
309	#endif
310	#ifndef MAP_NONBLOCK
311	# define MAP_NONBLOCK 0
312	#endif
313		163
314	#ifndef makedev	164	#ifndef makedev
315	# define makedev(maj,min) (((maj) << 8) | (min))	165	# define makedev(maj,min) (((maj) << 8) | (min))
316	#endif	166	#endif
317	#ifndef major	167	#ifndef major
…		…
319	#endif	169	#endif
320	#ifndef minor	170	#ifndef minor
321	# define minor(dev) ((dev) & 0xff)	171	# define minor(dev) ((dev) & 0xff)
322	#endif	172	#endif
323		173
324	#ifndef PAGESIZE	174	#if PAGESIZE <= 0
325	# define PAGESIZE sysconf (_SC_PAGESIZE)	175	# define PAGESIZE sysconf (_SC_PAGESIZE)
326	#endif	176	#endif
		177
		178	/*****************************************************************************/
		179
		180	#if !_POSIX_MAPPED_FILES
		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	/*****************************************************************************/
327		368
328	enum {	369	enum {
329	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	370	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
330	};	371	};
331		372
332	typedef eio_req *aio_req;	373	typedef eio_req *aio_req;
333	typedef eio_req *aio_req_ornot;	374	typedef eio_req *aio_req_ornot;
		375	typedef eio_wd aio_wd;
334		376
335	static SV *on_next_submit;	377	static SV *on_next_submit;
336	static int next_pri = EIO_PRI_DEFAULT;	378	static int next_pri = EIO_PRI_DEFAULT;
337	static int max_outstanding;	379	static int max_outstanding;
338		380
339	static s_epipe respipe;	381	static s_epipe respipe;
340		382
341	static void req_destroy (aio_req req);	383	static void req_destroy (aio_req req);
342	static void req_cancel (aio_req req);	384	static void req_cancel (aio_req req);
343		385
344	static void want_poll (void)	386	static void
		387	want_poll (void)
345	{	388	{
346	/* write a dummy byte to the pipe so fh becomes ready */	389	/* write a dummy byte to the pipe so fh becomes ready */
347	s_epipe_signal (&respipe);	390	s_epipe_signal (&respipe);
348	}	391	}
349		392
350	static void done_poll (void)	393	static void
		394	done_poll (void)
351	{	395	{
352	/* read any signals sent by the worker threads */	396	/* read any signals sent by the worker threads */
353	s_epipe_drain (&respipe);	397	s_epipe_drain (&respipe);
354	}	398	}
355		399
356	/* must be called at most once */	400	/* must be called at most once */
		401	static SV *
357	static SV *req_sv (aio_req req, HV *stash)	402	req_sv (aio_req req, HV *stash)
358	{	403	{
359	if (!req->self)	404	if (!req->self)
360	{	405	{
361	req->self = (SV *)newHV ();	406	req->self = (SV *)newHV ();
362	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	407	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
363	}	408	}
364		409
365	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	410	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
366	}	411	}
367		412
368	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)
369	{	421	{
370	MAGIC *mg;	422	MAGIC *mg;
371		423
372	if (!SvROK (sv)	424	if (!SvROK (sv)
		425	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
373	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	426	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
374	&& SvSTASH (SvRV (sv)) != aio_req_stash	427	&& SvSTASH (SvRV (sv)) != aio_req_stash
375	&& !sv_derived_from (sv, "IO::AIO::REQ")))	428	&& !sv_derived_from (sv, "IO::AIO::REQ")))
376	croak ("object of class IO::AIO::REQ expected");	429	croak ("object of class IO::AIO::REQ expected");
377		430
378	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	431	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
379		432
380	return mg ? (aio_req)mg->mg_ptr : 0;	433	return mg ? (aio_req)mg->mg_ptr : 0;
381	}	434	}
382		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
383	static void aio_grp_feed (aio_req grp)	473	aio_grp_feed (aio_req grp)
384	{	474	{
385	if (grp->sv2 && SvOK (grp->sv2))	475	if (grp->sv2 && SvOK (grp->sv2))
386	{	476	{
387	dSP;	477	dSP;
388		478
…		…
396	FREETMPS;	486	FREETMPS;
397	LEAVE;	487	LEAVE;
398	}	488	}
399	}	489	}
400		490
		491	static void
401	static void req_submit (eio_req *req)	492	req_submit (eio_req *req)
402	{	493	{
403	eio_submit (req);	494	eio_submit (req);
404		495
405	if (expect_false (on_next_submit))	496	if (expect_false (on_next_submit))
406	{	497	{
…		…
413	PUTBACK;	504	PUTBACK;
414	call_sv (cb, G_DISCARD | G_EVAL);	505	call_sv (cb, G_DISCARD | G_EVAL);
415	}	506	}
416	}	507	}
417		508
		509	static int
418	static int req_invoke (eio_req *req)	510	req_invoke (eio_req *req)
419	{	511	{
420	if (req->flags & FLAG_SV2_RO_OFF)	512	if (req->flags & FLAG_SV2_RO_OFF)
421	SvREADONLY_off (req->sv2);	513	SvREADONLY_off (req->sv2);
422		514
423	if (!EIO_CANCELLED (req) && req->callback)	515	if (!EIO_CANCELLED (req) && req->callback)
…		…
444	SvREADONLY_on (sv_result);	536	SvREADONLY_on (sv_result);
445	}	537	}
446		538
447	switch (req->type)	539	switch (req->type)
448	{	540	{
		541	case EIO_WD_OPEN:
		542	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		543	break;
		544
449	case EIO_READDIR:	545	case EIO_READDIR:
450	{	546	{
451	SV *rv = &PL_sv_undef;	547	SV *rv = &PL_sv_undef;
452		548
453	if (req->result >= 0)	549	if (req->result >= 0)
…		…
506	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))));
507	}	603	}
508	break;	604	break;
509		605
510	case EIO_OPEN:	606	case EIO_OPEN:
511	{	607	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
512	/* convert fd to fh */
513	SV *fh = &PL_sv_undef;
514
515	if (req->result >= 0)
516	{
517	GV *gv = (GV *)sv_newmortal ();
518	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
519	char sym [64];
520	int symlen;
521
522	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
523	gv_init (gv, aio_stash, sym, symlen, 0);
524
525	symlen = snprintf (
526	sym,
527	sizeof (sym),
528	"%s&=%d",
529	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
530	(int)req->result
531	);
532
533	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
534	fh = (SV *)gv;
535	}
536
537	PUSHs (fh);
538	}
539	break;	608	break;
540		609
541	case EIO_STATVFS:	610	case EIO_STATVFS:
542	case EIO_FSTATVFS:	611	case EIO_FSTATVFS:
543	{	612	{
…		…
546	#ifndef _WIN32	615	#ifndef _WIN32
547	if (req->result >= 0)	616	if (req->result >= 0)
548	{	617	{
549	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	618	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
550	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));
551		625
552	rv = sv_2mortal (newRV_noinc ((SV *)hv));	626	rv = sv_2mortal (newRV_noinc ((SV *)hv));
553		627
554	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);
555	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);
…		…
557	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);
558	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);
559	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);
560	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);
561	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);
562	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	636	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
563	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);
564	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);
565	}	639	}
566	#endif	640	#endif
567		641
…		…
595	break;	669	break;
596		670
597	case EIO_STAT:	671	case EIO_STAT:
598	case EIO_LSTAT:	672	case EIO_LSTAT:
599	case EIO_FSTAT:	673	case EIO_FSTAT:
600	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	674	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		675
601	PL_laststatval = req->result;	676	if (!(PL_laststatval = req->result))
602	/* if compilation fails here then perl's Stat_t is not struct _stati64 */	677	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
603	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	678	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		679
604	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)));
605	break;	685	break;
606		686
607	case EIO_READ:	687	case EIO_READ:
608	{	688	{
609	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));
…		…
612	SvSETMAGIC (req->sv2);	692	SvSETMAGIC (req->sv2);
613	PUSHs (sv_result);	693	PUSHs (sv_result);
614	}	694	}
615	break;	695	break;
616		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
617	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 */
618	if (req->result > 0)	762	if (req->result > 0)
619	SvIV_set (sv_result, 0);	763	SvIV_set (sv_result, 0);
620	/* FALLTHROUGH */	764	/* FALLTHROUGH */
621		765
…		…
642	}	786	}
643		787
644	return !!SvTRUE (ERRSV);	788	return !!SvTRUE (ERRSV);
645	}	789	}
646		790
		791	static void
647	static void req_destroy (aio_req req)	792	req_destroy (aio_req req)
648	{	793	{
649	if (req->self)	794	if (req->self)
650	{	795	{
651	sv_unmagic (req->self, PERL_MAGIC_ext);	796	sv_unmagic (req->self, PERL_MAGIC_ext);
652	SvREFCNT_dec (req->self);	797	SvREFCNT_dec (req->self);
653	}	798	}
654		799
655	SvREFCNT_dec (req->sv1);	800	SvREFCNT_dec (req->sv1);
656	SvREFCNT_dec (req->sv2);	801	SvREFCNT_dec (req->sv2);
		802	SvREFCNT_dec (req->sv3);
		803	SvREFCNT_dec (req->sv4);
657	SvREFCNT_dec (req->callback);	804	SvREFCNT_dec (req->callback);
658		805
659	Safefree (req);	806	free (req);
660	}	807	}
661		808
		809	static void
662	static void req_cancel_subs (aio_req grp)	810	req_cancel_subs (aio_req grp)
663	{	811	{
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
…		…
720	croak ("IO::AIO: unable to initialise eio library");	871	croak ("IO::AIO: unable to initialise eio library");
721	}	872	}
722		873
723	/*****************************************************************************/	874	/*****************************************************************************/
724		875
725	#if !_POSIX_MAPPED_FILES	876	static SV *
726	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
727	# define munmap(addr,length) (errno = ENOSYS, -1)
728	#endif
729
730	#if !_POSIX_MEMORY_PROTECTION
731	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
732	# define PROT_NONE 0
733	# define PROT_WRITE 0
734	# define MAP_PRIVATE 0
735	# define MAP_SHARED 0
736	# define MAP_FIXED 0
737	#endif
738
739	#define MMAP_MAGIC PERL_MAGIC_ext
740
741	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
742	{
743	int old_errno = errno;
744	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
745	errno = old_errno;
746
747	mg->mg_obj = 0; /* just in case */
748
749	SvREADONLY_off (sv);
750
751	if (SvPVX (sv) != mg->mg_ptr)
752	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
753
754	SvCUR_set (sv, 0);
755	SvPVX (sv) = 0;
756	SvOK_off (sv);
757
758	return 0;
759	}
760
761	static MGVTBL mmap_vtbl = {
762	0, 0, 0, 0, mmap_free
763	};
764
765	/*****************************************************************************/
766
767	static SV * get_cb (SV *cb_sv)	877	get_cb (SV *cb_sv)
768	{	878	{
769	SvGETMAGIC (cb_sv);	879	SvGETMAGIC (cb_sv);
770	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	880	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
771	}	881	}
772		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
773	#define dREQ \	903	#define dREQ \
774	SV *cb_cv; \	904	aio_req req = dreq (callback); \
775	aio_req req; \
776	int req_pri = next_pri; \
777	next_pri = EIO_PRI_DEFAULT; \
778	\
779	cb_cv = get_cb (callback); \
780	\
781	Newz (0, req, 1, eio_req); \
782	if (!req) \
783	croak ("out of memory during eio_req allocation"); \
784	\
785	req->callback = SvREFCNT_inc (cb_cv); \
786	req->pri = req_pri
787		905
788	#define REQ_SEND \	906	#define REQ_SEND \
789	PUTBACK; \	907	PUTBACK; \
790	req_submit (req); \	908	req_submit (req); \
791	SPAGAIN; \	909	SPAGAIN; \
792	\	910	\
793	if (GIMME_V != G_VOID) \	911	if (GIMME_V != G_VOID) \
794	XPUSHs (req_sv (req, aio_req_stash));	912	XPUSHs (req_sv (req, aio_req_stash));
795		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
796	MODULE = IO::AIO PACKAGE = IO::AIO	980	MODULE = IO::AIO PACKAGE = IO::AIO
797		981
798	PROTOTYPES: ENABLE	982	PROTOTYPES: ENABLE
799		983
800	BOOT:	984	BOOT:
…		…
804	IV iv;	988	IV iv;
805	} *civ, const_iv[] = {	989	} *civ, const_iv[] = {
806	# define const_niv(name, value) { # name, (IV) value },	990	# define const_niv(name, value) { # name, (IV) value },
807	# define const_iv(name) { # name, (IV) name },	991	# define const_iv(name) { # name, (IV) name },
808	# 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)
809	const_iv (EXDEV)	997	const_iv (EXDEV)
810	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 */
811	const_iv (O_RDONLY)	1018	const_iv (O_RDONLY)
812	const_iv (O_WRONLY)	1019	const_iv (O_WRONLY)
813	const_iv (O_RDWR)	1020	const_iv (O_RDWR)
814	const_iv (O_CREAT)	1021	const_iv (O_CREAT)
815	const_iv (O_TRUNC)	1022	const_iv (O_TRUNC)
…		…
828	const_iv (O_SEARCH)	1035	const_iv (O_SEARCH)
829	const_iv (O_DIRECTORY)	1036	const_iv (O_DIRECTORY)
830	const_iv (O_DSYNC)	1037	const_iv (O_DSYNC)
831	const_iv (O_RSYNC)	1038	const_iv (O_RSYNC)
832	const_iv (O_SYNC)	1039	const_iv (O_SYNC)
		1040	const_iv (O_PATH)
		1041	const_iv (O_TMPFILE)
833	const_iv (O_TTY_INIT)	1042	const_iv (O_TTY_INIT)
834		1043
835	const_iv (S_IFIFO)	1044	const_iv (S_IFIFO)
836	const_iv (S_IFCHR)	1045	const_iv (S_IFCHR)
837	const_iv (S_IFBLK)	1046	const_iv (S_IFBLK)
…		…
839	const_iv (S_IFREG)	1048	const_iv (S_IFREG)
840	const_iv (S_IFDIR)	1049	const_iv (S_IFDIR)
841	const_iv (S_IFWHT)	1050	const_iv (S_IFWHT)
842	const_iv (S_IFSOCK)	1051	const_iv (S_IFSOCK)
843	const_iv (S_IFMT)	1052	const_iv (S_IFMT)
844
845	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
846	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
847	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
848	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
849	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
850	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
851
852	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
853	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
854	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
855	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
856	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
857		1053
858	const_iv (ST_RDONLY)	1054	const_iv (ST_RDONLY)
859	const_iv (ST_NOSUID)	1055	const_iv (ST_NOSUID)
860	const_iv (ST_NODEV)	1056	const_iv (ST_NODEV)
861	const_iv (ST_NOEXEC)	1057	const_iv (ST_NOEXEC)
…		…
871	const_iv (PROT_NONE)	1067	const_iv (PROT_NONE)
872	const_iv (PROT_EXEC)	1068	const_iv (PROT_EXEC)
873	const_iv (PROT_READ)	1069	const_iv (PROT_READ)
874	const_iv (PROT_WRITE)	1070	const_iv (PROT_WRITE)
875		1071
876	/*const_iv (MAP_FIXED)*/
877	const_iv (MAP_PRIVATE)	1072	const_iv (MAP_PRIVATE)
878	const_iv (MAP_SHARED)	1073	const_iv (MAP_SHARED)
		1074	const_iv (MAP_FIXED)
879	const_iv (MAP_ANONYMOUS)	1075	const_iv (MAP_ANONYMOUS)
880		1076
881	/* linuxish */	1077	/* linuxish */
882	const_iv (MAP_HUGETLB)
883	const_iv (MAP_LOCKED)	1078	const_iv (MAP_LOCKED)
884	const_iv (MAP_NORESERVE)	1079	const_iv (MAP_NORESERVE)
885	const_iv (MAP_POPULATE)	1080	const_iv (MAP_POPULATE)
886	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)
887		1178
888	const_eio (MCL_FUTURE)	1179	const_eio (MCL_FUTURE)
889	const_eio (MCL_CURRENT)	1180	const_eio (MCL_CURRENT)
890		1181
891	const_eio (MS_ASYNC)	1182	const_eio (MS_ASYNC)
…		…
897	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1188	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
898	const_eio (SYNC_FILE_RANGE_WRITE)	1189	const_eio (SYNC_FILE_RANGE_WRITE)
899	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1190	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
900		1191
901	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)
902		1202
903	const_eio (READDIR_DENTS)	1203	const_eio (READDIR_DENTS)
904	const_eio (READDIR_DIRS_FIRST)	1204	const_eio (READDIR_DIRS_FIRST)
905	const_eio (READDIR_STAT_ORDER)	1205	const_eio (READDIR_STAT_ORDER)
906	const_eio (READDIR_FOUND_UNKNOWN)	1206	const_eio (READDIR_FOUND_UNKNOWN)
…		…
917	};	1217	};
918		1218
919	aio_stash = gv_stashpv ("IO::AIO" , 1);	1219	aio_stash = gv_stashpv ("IO::AIO" , 1);
920	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1220	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
921	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);
922		1223
923	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--)
924	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1225	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
925		1226
926	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1227	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
927		1228
928	reinit ();	1229	reinit ();
929	}	1230	}
…		…
973	PROTOTYPE: $	1274	PROTOTYPE: $
974	CODE:	1275	CODE:
975	max_outstanding = maxreqs;	1276	max_outstanding = maxreqs;
976		1277
977	void	1278	void
978	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1279	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
979	PPCODE:	1280	PPCODE:
980	{	1281	{
981	dREQ;	1282	dREQ;
982		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
983	req->type = EIO_OPEN;	1296	req->type = EIO_OPEN;
984	req->sv1 = newSVsv (pathname);	1297	req_set_path1 (req, pathname);
985	req->ptr1 = SvPVbyte_nolen (req->sv1);
986	req->int1 = flags;	1298	req->int1 = flags;
987	req->int2 = mode;	1299	req->int2 = mode;
988		1300
989	REQ_SEND;	1301	REQ_SEND;
990	}	1302	}
991		1303
992	void	1304	void
993	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1305	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
994	ALIAS:	1306	ALIAS:
995	aio_fsync = EIO_FSYNC	1307	aio_fsync = EIO_FSYNC
996	aio_fdatasync = EIO_FDATASYNC	1308	aio_fdatasync = EIO_FDATASYNC
997	aio_syncfs = EIO_SYNCFS	1309	aio_syncfs = EIO_SYNCFS
998	PPCODE:	1310	PPCODE:
999	{	1311	{
1000	int fd = s_fileno_croak (fh, 0);	1312	int fd = s_fileno_croak (fh, 0);
1001	dREQ;	1313	dREQ;
1002		1314
1003	req->type = ix;	1315	req->type = ix;
1004	req->sv1 = newSVsv (fh);	1316	req->sv1 = newSVsv (fh);
1005	req->int1 = fd;	1317	req->int1 = fd;
1006		1318
1007	REQ_SEND (req);	1319	REQ_SEND;
1008	}	1320	}
1009		1321
1010	void	1322	void
1011	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)
1012	PPCODE:	1324	PPCODE:
1013	{	1325	{
1014	int fd = s_fileno_croak (fh, 0);	1326	int fd = s_fileno_croak (fh, 0);
1015	dREQ;	1327	dREQ;
1016		1328
1017	req->type = EIO_SYNC_FILE_RANGE;	1329	req->type = EIO_SYNC_FILE_RANGE;
1018	req->sv1 = newSVsv (fh);	1330	req->sv1 = newSVsv (fh);
1019	req->int1 = fd;	1331	req->int1 = fd;
1020	req->offs = offset;	1332	req->offs = offset;
1021	req->size = nbytes;	1333	req->size = nbytes;
1022	req->int2 = flags;	1334	req->int2 = flags;
1023		1335
1024	REQ_SEND (req);	1336	REQ_SEND;
1025	}	1337	}
1026		1338
1027	void	1339	void
1028	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)
1029	PPCODE:	1341	PPCODE:
1030	{	1342	{
1031	int fd = s_fileno_croak (fh, 0);	1343	int fd = s_fileno_croak (fh, 0);
1032	dREQ;	1344	dREQ;
1033		1345
1034	req->type = EIO_FALLOCATE;	1346	req->type = EIO_FALLOCATE;
1035	req->sv1 = newSVsv (fh);	1347	req->sv1 = newSVsv (fh);
1036	req->int1 = fd;	1348	req->int1 = fd;
1037	req->int2 = mode;	1349	req->int2 = mode;
1038	req->offs = offset;	1350	req->offs = offset;
1039	req->size = len;	1351	req->size = len;
1040		1352
1041	REQ_SEND (req);	1353	REQ_SEND;
1042	}	1354	}
1043		1355
1044	void	1356	void
1045	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1357	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1046	PPCODE:	1358	PPCODE:
1047	{	1359	{
1048	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 */
1049	int fd = s_fileno_croak (fh, 0);	1361	int fd = s_fileno_croak (fh, 0);
1050	dREQ;	1362	dREQ;
1051		1363
1052	if (expect_false (close_fd < 0))	1364	if (expect_false (close_fd < 0))
1053	{	1365	{
1054	int pipefd [2];	1366	int pipefd [2];
…		…
1070	req->type = EIO_DUP2;	1382	req->type = EIO_DUP2;
1071	req->int1 = close_fd;	1383	req->int1 = close_fd;
1072	req->sv2 = newSVsv (fh);	1384	req->sv2 = newSVsv (fh);
1073	req->int2 = fd;	1385	req->int2 = fd;
1074		1386
1075	REQ_SEND (req);	1387	REQ_SEND;
1076	}	1388	}
1077		1389
1078	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
1079	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)
1080	ALIAS:	1408	ALIAS:
1081	aio_read = EIO_READ	1409	aio_read = EIO_READ
1082	aio_write = EIO_WRITE	1410	aio_write = EIO_WRITE
1083	PPCODE:	1411	PPCODE:
1084	{	1412	{
…		…
1100	len = svlen - dataoffset;	1428	len = svlen - dataoffset;
1101	}	1429	}
1102	else	1430	else
1103	{	1431	{
1104	/* read: check type and grow scalar as necessary */	1432	/* read: check type and grow scalar as necessary */
1105	SvUPGRADE (data, SVt_PV);	1433	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1106	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");
1107	}	1437	}
1108		1438
1109	{	1439	{
1110	dREQ;	1440	dREQ;
1111		1441
…		…
1127	REQ_SEND;	1457	REQ_SEND;
1128	}	1458	}
1129	}	1459	}
1130		1460
1131	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
1132	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1502	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1133	ALIAS:	1503	ALIAS:
1134	aio_readlink = EIO_READLINK	1504	aio_readlink = EIO_READLINK
1135	aio_realpath = EIO_REALPATH	1505	aio_realpath = EIO_REALPATH
1136	PPCODE:	1506	PPCODE:
1137	{	1507	{
1138	dREQ;	1508	dREQ;
1139		1509
1140	req->type = ix;	1510	req->type = ix;
1141	req->sv1 = newSVsv (path);	1511	req_set_path1 (req, pathname);
1142	req->ptr1 = SvPVbyte_nolen (req->sv1);
1143		1512
1144	REQ_SEND;	1513	REQ_SEND;
1145	}	1514	}
1146		1515
1147	void	1516	void
1148	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)
1149	PPCODE:	1518	PPCODE:
1150	{	1519	{
1151	int ifd = s_fileno_croak (in_fh , 0);	1520	int ifd = s_fileno_croak (in_fh , 0);
1152	int ofd = s_fileno_croak (out_fh, 1);	1521	int ofd = s_fileno_croak (out_fh, 1);
1153	dREQ;	1522	dREQ;
1154		1523
1155	req->type = EIO_SENDFILE;	1524	req->type = EIO_SENDFILE;
1156	req->sv1 = newSVsv (out_fh);	1525	req->sv1 = newSVsv (out_fh);
1157	req->int1 = ofd;	1526	req->int1 = ofd;
…		…
1162		1531
1163	REQ_SEND;	1532	REQ_SEND;
1164	}	1533	}
1165		1534
1166	void	1535	void
1167	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)
1168	PPCODE:	1537	PPCODE:
1169	{	1538	{
1170	int fd = s_fileno_croak (fh, 0);	1539	int fd = s_fileno_croak (fh, 0);
1171	dREQ;	1540	dREQ;
1172		1541
1173	req->type = EIO_READAHEAD;	1542	req->type = EIO_READAHEAD;
1174	req->sv1 = newSVsv (fh);	1543	req->sv1 = newSVsv (fh);
1175	req->int1 = fd;	1544	req->int1 = fd;
…		…
1178		1547
1179	REQ_SEND;	1548	REQ_SEND;
1180	}	1549	}
1181		1550
1182	void	1551	void
1183	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1552	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1184	ALIAS:	1553	ALIAS:
1185	aio_stat = EIO_STAT	1554	aio_stat = EIO_STAT
1186	aio_lstat = EIO_LSTAT	1555	aio_lstat = EIO_LSTAT
1187	aio_statvfs = EIO_STATVFS	1556	aio_statvfs = EIO_STATVFS
1188	PPCODE:	1557	PPCODE:
1189	{	1558	{
1190	dREQ;	1559	dREQ;
1191		1560
1192	req->sv1 = newSVsv (fh_or_path);	1561	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1193
1194	if (SvPOK (req->sv1))
1195	{
1196	req->type = ix;
1197	req->ptr1 = SvPVbyte_nolen (req->sv1);
1198	}
1199	else
1200	{
1201	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1202	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1203	}
1204		1562
1205	REQ_SEND;	1563	REQ_SEND;
1206	}	1564	}
1207		1565
1208	UV	1566	UV
1209	major (UV dev)	1567	major (UV dev)
1210	ALIAS:	1568	ALIAS:
1211	minor = 1	1569	minor = 1
1212	CODE:	1570	CODE:
1213	RETVAL = ix ? major (dev) : minor (dev);	1571	RETVAL = ix ? minor (dev) : major (dev);
1214	OUTPUT:	1572	OUTPUT:
1215	RETVAL	1573	RETVAL
1216		1574
1217	UV	1575	UV
1218	makedev (UV maj, UV min)	1576	makedev (UV maj, UV min)
…		…
1220	RETVAL = makedev (maj, min);	1578	RETVAL = makedev (maj, min);
1221	OUTPUT:	1579	OUTPUT:
1222	RETVAL	1580	RETVAL
1223		1581
1224	void	1582	void
1225	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)
1226	PPCODE:	1584	PPCODE:
1227	{	1585	{
1228	dREQ;	1586	dREQ;
1229		1587
1230	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1588	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1231	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1589	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1232	req->sv1 = newSVsv (fh_or_path);	1590	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1233
1234	if (SvPOK (req->sv1))
1235	{
1236	req->type = EIO_UTIME;
1237	req->ptr1 = SvPVbyte_nolen (req->sv1);
1238	}
1239	else
1240	{
1241	req->type = EIO_FUTIME;
1242	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1243	}
1244		1591
1245	REQ_SEND;	1592	REQ_SEND;
1246	}	1593	}
1247		1594
1248	void	1595	void
1249	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)
1250	PPCODE:	1597	PPCODE:
1251	{	1598	{
1252	dREQ;	1599	dREQ;
1253		1600
1254	req->sv1 = newSVsv (fh_or_path);
1255	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1601	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1256		1602	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1257	if (SvPOK (req->sv1))
1258	{
1259	req->type = EIO_TRUNCATE;
1260	req->ptr1 = SvPVbyte_nolen (req->sv1);
1261	}
1262	else
1263	{
1264	req->type = EIO_FTRUNCATE;
1265	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1266	}
1267		1603
1268	REQ_SEND;	1604	REQ_SEND;
1269	}	1605	}
1270		1606
1271	void	1607	void
1272	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)
1273	ALIAS:
1274	aio_chmod = EIO_CHMOD
1275	aio_mkdir = EIO_MKDIR
1276	PPCODE:	1609	PPCODE:
1277	{	1610	{
1278	dREQ;	1611	dREQ;
1279		1612
1280	req->int2 = mode;	1613	req->int2 = mode;
1281	req->sv1 = newSVsv (fh_or_path);	1614	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1282
1283	if (SvPOK (req->sv1))
1284	{
1285	req->type = ix;
1286	req->ptr1 = SvPVbyte_nolen (req->sv1);
1287	}
1288	else
1289	{
1290	req->type = EIO_FCHMOD;
1291	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1292	}
1293		1615
1294	REQ_SEND;	1616	REQ_SEND;
1295	}	1617	}
1296		1618
1297	void	1619	void
1298	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)
1299	PPCODE:	1621	PPCODE:
1300	{	1622	{
1301	dREQ;	1623	dREQ;
1302		1624
1303	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1625	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1304	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1626	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1305	req->sv1 = newSVsv (fh_or_path);	1627	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1306
1307	if (SvPOK (req->sv1))
1308	{
1309	req->type = EIO_CHOWN;
1310	req->ptr1 = SvPVbyte_nolen (req->sv1);
1311	}
1312	else
1313	{
1314	req->type = EIO_FCHOWN;
1315	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1316	}
1317		1628
1318	REQ_SEND;	1629	REQ_SEND;
1319	}	1630	}
1320		1631
1321	void	1632	void
1322	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1633	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1323	PPCODE:	1634	PPCODE:
1324	{	1635	{
1325	dREQ;	1636	dREQ;
1326		1637
1327	req->type = EIO_READDIR;	1638	req->type = EIO_READDIR;
1328	req->sv1 = newSVsv (pathname);
1329	req->ptr1 = SvPVbyte_nolen (req->sv1);
1330	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1639	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1331		1640
1332	if (flags & EIO_READDIR_DENTS)	1641	if (flags & EIO_READDIR_DENTS)
1333	req->int1 |= EIO_READDIR_CUSTOM2;	1642	req->int1 |= EIO_READDIR_CUSTOM2;
1334		1643
		1644	req_set_path1 (req, pathname);
		1645
1335	REQ_SEND;	1646	REQ_SEND;
1336	}	1647	}
1337		1648
1338	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
1339	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1663	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1340	ALIAS:	1664	ALIAS:
1341	aio_unlink = EIO_UNLINK	1665	aio_unlink = EIO_UNLINK
1342	aio_rmdir = EIO_RMDIR	1666	aio_rmdir = EIO_RMDIR
1343	aio_readdir = EIO_READDIR	1667	aio_readdir = EIO_READDIR
1344	PPCODE:	1668	PPCODE:
1345	{	1669	{
1346	dREQ;	1670	dREQ;
1347		1671
1348	req->type = ix;	1672	req->type = ix;
1349	req->sv1 = newSVsv (pathname);	1673	req_set_path1 (req, pathname);
1350	req->ptr1 = SvPVbyte_nolen (req->sv1);
1351		1674
1352	REQ_SEND;	1675	REQ_SEND;
1353	}	1676	}
1354		1677
1355	void	1678	void
1356	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1679	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1357	ALIAS:	1680	ALIAS:
1358	aio_link = EIO_LINK	1681	aio_link = EIO_LINK
1359	aio_symlink = EIO_SYMLINK	1682	aio_symlink = EIO_SYMLINK
1360	aio_rename = EIO_RENAME	1683	aio_rename = EIO_RENAME
1361	PPCODE:	1684	PPCODE:
1362	{	1685	{
		1686	eio_wd wd2 = 0;
1363	dREQ;	1687	dREQ;
1364		1688
1365	req->type = ix;	1689	req->type = ix;
1366	req->sv1 = newSVsv (oldpath);	1690	req_set_path1 (req, oldpath);
1367	req->ptr1 = SvPVbyte_nolen (req->sv1);	1691	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1368	req->sv2 = newSVsv (newpath);	1692	req->int3 = (long)wd2;
1369	req->ptr2 = SvPVbyte_nolen (req->sv2);
1370		1693
1371	REQ_SEND;	1694	REQ_SEND;
1372	}	1695	}
1373		1696
1374	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
1375	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)
1376	PPCODE:	1715	PPCODE:
1377	{	1716	{
1378	dREQ;	1717	dREQ;
1379		1718
1380	req->type = EIO_MKNOD;	1719	req->type = EIO_MKNOD;
1381	req->sv1 = newSVsv (pathname);
1382	req->ptr1 = SvPVbyte_nolen (req->sv1);
1383	req->int2 = (mode_t)mode;	1720	req->int2 = (mode_t)mode;
1384	req->offs = dev;	1721	req->offs = dev;
		1722	req_set_path1 (req, pathname);
1385		1723
1386	REQ_SEND;	1724	REQ_SEND;
1387	}	1725	}
1388		1726
1389	void	1727	void
1390	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)
1391	ALIAS:	1729	ALIAS:
1392	aio_mtouch = EIO_MTOUCH	1730	aio_mtouch = EIO_MTOUCH
1393	aio_msync = EIO_MSYNC	1731	aio_msync = EIO_MSYNC
1394	PPCODE:	1732	PPCODE:
1395	{	1733	{
1396	STRLEN svlen;	1734	STRLEN svlen;
1397	char *svptr = SvPVbyte (data, svlen);	1735	char *svptr = SvPVbyte (data, svlen);
1398	UV len = SvUV (length);	1736	UV len = SvUV (length);
		1737
		1738	if (flags < 0)
		1739	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1399		1740
1400	if (offset < 0)	1741	if (offset < 0)
1401	offset += svlen;	1742	offset += svlen;
1402		1743
1403	if (offset < 0 || offset > svlen)	1744	if (offset < 0 || offset > svlen)
…		…
1418	REQ_SEND;	1759	REQ_SEND;
1419	}	1760	}
1420	}	1761	}
1421		1762
1422	void	1763	void
1423	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)
1424	PPCODE:	1765	PPCODE:
1425	{	1766	{
1426	STRLEN svlen;	1767	STRLEN svlen;
1427	char *svptr = SvPVbyte (data, svlen);	1768	char *svptr = SvPVbyte (data, svlen);
1428	UV len = SvUV (length);	1769	UV len = SvUV (length);
…		…
1447	REQ_SEND;	1788	REQ_SEND;
1448	}	1789	}
1449	}	1790	}
1450		1791
1451	void	1792	void
1452	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1793	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1453	PPCODE:	1794	PPCODE:
1454	{	1795	{
1455	dREQ;	1796	dREQ;
1456		1797
1457	req->type = EIO_MLOCKALL;	1798	req->type = EIO_MLOCKALL;
…		…
1459		1800
1460	REQ_SEND;	1801	REQ_SEND;
1461	}	1802	}
1462		1803
1463	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
1464	aio_busy (double delay, SV *callback=&PL_sv_undef)	1866	aio_busy (double delay, SV *callback = &PL_sv_undef)
1465	PPCODE:	1867	PPCODE:
1466	{	1868	{
1467	dREQ;	1869	dREQ;
1468		1870
1469	req->type = EIO_BUSY;	1871	req->type = EIO_BUSY;
…		…
1471		1873
1472	REQ_SEND;	1874	REQ_SEND;
1473	}	1875	}
1474		1876
1475	void	1877	void
1476	aio_group (SV *callback=&PL_sv_undef)	1878	aio_group (SV *callback = &PL_sv_undef)
1477	PPCODE:	1879	PPCODE:
1478	{	1880	{
1479	dREQ;	1881	dREQ;
1480		1882
1481	req->type = EIO_GROUP;	1883	req->type = EIO_GROUP;
1482		1884
		1885	PUTBACK;
1483	req_submit (req);	1886	req_submit (req);
		1887	SPAGAIN;
		1888
1484	XPUSHs (req_sv (req, aio_grp_stash));	1889	XPUSHs (req_sv (req, aio_grp_stash));
1485	}	1890	}
1486		1891
1487	void	1892	void
1488	aio_nop (SV *callback=&PL_sv_undef)	1893	aio_nop (SV *callback = &PL_sv_undef)
1489	ALIAS:	1894	ALIAS:
1490	aio_nop = EIO_NOP	1895	aio_nop = EIO_NOP
1491	aio_sync = EIO_SYNC	1896	aio_sync = EIO_SYNC
1492	PPCODE:	1897	PPCODE:
1493	{	1898	{
…		…
1497		1902
1498	REQ_SEND;	1903	REQ_SEND;
1499	}	1904	}
1500		1905
1501	int	1906	int
1502	aioreq_pri (int pri = 0)	1907	aioreq_pri (int pri = NO_INIT)
1503	CODE:	1908	CODE:
1504	RETVAL = next_pri;	1909	RETVAL = next_pri;
1505	if (items > 0)	1910	if (items > 0)
1506	{	1911	{
1507	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1912	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1597	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2002	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1598	OUTPUT:	2003	OUTPUT:
1599	RETVAL	2004	RETVAL
1600		2005
1601	void	2006	void
1602	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)
1603	PPCODE:	2008	PPCODE:
1604	sv_unmagic (scalar, MMAP_MAGIC);	2009	sv_clear_foreign (scalar);
1605	{	2010	{
1606	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;
1607	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2012	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1608	if (addr == (void *)-1)	2013	if (addr == (void *)-1)
1609	XSRETURN_NO;	2014	XSRETURN_NO;
1610		2015
1611	sv_force_normal (scalar);	2016	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1612
1613	/* we store the length in mg_obj, as namlen is I32 :/ */
1614	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1615	->mg_obj = (SV *)length;
1616
1617	SvUPGRADE (scalar, SVt_PV); /* nop... */
1618		2017
1619	if (!(prot & PROT_WRITE))	2018	if (!(prot & PROT_WRITE))
1620	SvREADONLY_on (scalar);	2019	SvREADONLY_on (scalar);
1621		2020
1622	if (SvLEN (scalar))
1623	Safefree (SvPVX (scalar));
1624
1625	SvPVX (scalar) = (char *)addr;
1626	SvCUR_set (scalar, length);
1627	SvLEN_set (scalar, 0);
1628	SvPOK_only (scalar);
1629
1630	XSRETURN_YES;	2021	XSRETURN_YES;
1631	}	2022	}
1632		2023
1633	void	2024	void
1634	munmap (SV *scalar)	2025	munmap (SV *scalar)
1635	CODE:	2026	CODE:
1636	sv_unmagic (scalar, MMAP_MAGIC);	2027	sv_clear_foreign (scalar);
1637		2028
1638	int	2029	int
1639	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)
1640	ALIAS:	2031	ALIAS:
1641	mprotect = 1	2032	mprotect = 1
1642	CODE:	2033	CODE:
1643	{	2034	{
1644	STRLEN svlen;	2035	STRLEN svlen;
1645	void *addr = SvPVbyte (scalar, svlen);	2036	void *addr = SvPVbyte (scalar, svlen);
1646	size_t len = SvUV (length);	2037	STRLEN len = SvUV (length);
1647		2038
1648	if (offset < 0)	2039	if (offset < 0)
1649	offset += svlen;	2040	offset += svlen;
1650		2041
1651	if (offset < 0 || offset > svlen)	2042	if (offset < 0 || offset > svlen)
…		…
1665	}	2056	}
1666	OUTPUT:	2057	OUTPUT:
1667	RETVAL	2058	RETVAL
1668		2059
1669	int	2060	int
1670	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2061	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1671	CODE:	2062	CODE:
1672	{	2063	{
1673	STRLEN svlen;	2064	STRLEN svlen;
1674	void *addr = SvPVbyte (scalar, svlen);	2065	void *addr = SvPVbyte (scalar, svlen);
1675	size_t len = SvUV (length);	2066	size_t len = SvUV (length);
1676		2067
1677	if (offset < 0)	2068	if (offset < 0)
1678	offset += svlen;	2069	offset += svlen;
1679		2070
…		…
1686	addr = (void *)(((intptr_t)addr) + offset);	2077	addr = (void *)(((intptr_t)addr) + offset);
1687	eio_page_align (&addr, &len);	2078	eio_page_align (&addr, &len);
1688	#if _POSIX_MEMLOCK_RANGE	2079	#if _POSIX_MEMLOCK_RANGE
1689	RETVAL = munlock (addr, len);	2080	RETVAL = munlock (addr, len);
1690	#else	2081	#else
1691	RETVAL = ((errno = ENOSYS), -1);	2082	RETVAL = EIO_ENOSYS ();
1692	#endif	2083	#endif
1693	}	2084	}
1694	OUTPUT:	2085	OUTPUT:
1695	RETVAL	2086	RETVAL
1696		2087
…		…
1698	munlockall ()	2089	munlockall ()
1699	CODE:	2090	CODE:
1700	#if _POSIX_MEMLOCK	2091	#if _POSIX_MEMLOCK
1701	munlockall ();	2092	munlockall ();
1702	#else	2093	#else
1703	RETVAL = -1;	2094	RETVAL = EIO_ENOSYS ();
1704	errno = ENOSYS;
1705	#endif	2095	#endif
1706	OUTPUT:	2096	OUTPUT:
1707	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	}
1708		2254
1709	void _on_next_submit (SV *cb)	2255	void _on_next_submit (SV *cb)
1710	CODE:	2256	CODE:
1711	SvREFCNT_dec (on_next_submit);	2257	SvREFCNT_dec (on_next_submit);
1712	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2258	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1713		2259
1714	PROTOTYPES: DISABLE	2260	PROTOTYPES: DISABLE
1715		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
1716	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2290	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1717		2291
1718	void	2292	void
1719	cancel (aio_req_ornot req)	2293	cancel (aio_req_ornot req)
1720	CODE:	2294	CODE:
1721	eio_cancel (req);	2295	eio_cancel (req);
1722		2296
1723	void	2297	void
1724	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2298	cb (aio_req_ornot req, SV *callback = NO_INIT)
1725	PPCODE:	2299	PPCODE:
1726	{	2300	{
1727	if (GIMME_V != G_VOID)	2301	if (GIMME_V != G_VOID)
1728	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);
1729		2303
1730	if (items > 1)	2304	if (items > 1)
1731	{	2305	{
1732	SV *cb_cv =get_cb (callback);	2306	SV *cb_cv = get_cb (callback);
1733		2307
1734	SvREFCNT_dec (req->callback);	2308	SvREFCNT_dec (req->callback);
1735	req->callback = SvREFCNT_inc (cb_cv);	2309	req->callback = SvREFCNT_inc (cb_cv);
1736	}	2310	}
1737	}	2311	}
…		…
1794	limit (aio_req grp, int limit)	2368	limit (aio_req grp, int limit)
1795	CODE:	2369	CODE:
1796	eio_grp_limit (grp, limit);	2370	eio_grp_limit (grp, limit);
1797		2371
1798	void	2372	void
1799	feed (aio_req grp, SV *callback=&PL_sv_undef)	2373	feed (aio_req grp, SV *callback = &PL_sv_undef)
1800	CODE:	2374	CODE:
1801	{	2375	{
1802	SvREFCNT_dec (grp->sv2);	2376	SvREFCNT_dec (grp->sv2);
1803	grp->sv2 = newSVsv (callback);	2377	grp->sv2 = newSVsv (callback);
1804	grp->feed = aio_grp_feed;	2378	grp->feed = aio_grp_feed;

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