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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.195 by root, Mon Sep 26 20:19:08 2011 UTC vs.
Revision 1.271 by root, Fri Dec 28 12:43:00 2018 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
333	typedef eio_req *aio_req;	434	typedef eio_req *aio_req;
334	typedef eio_req *aio_req_ornot;	435	typedef eio_req *aio_req_ornot;
335	typedef eio_wd *aio_wd;	436	typedef eio_wd aio_wd;
336		437
337	static SV *on_next_submit;	438	static SV *on_next_submit;
338	static int next_pri = EIO_PRI_DEFAULT;	439	static int next_pri = EIO_PRI_DEFAULT;
339	static int max_outstanding;	440	static int max_outstanding;
340		441
341	static s_epipe respipe;	442	static s_epipe respipe;
342		443
343	static void req_destroy (aio_req req);	444	static void req_destroy (aio_req req);
344	static void req_cancel (aio_req req);	445	static void req_cancel (aio_req req);
345		446
346	static void want_poll (void)	447	static void
		448	want_poll (void)
347	{	449	{
348	/* write a dummy byte to the pipe so fh becomes ready */	450	/* write a dummy byte to the pipe so fh becomes ready */
349	s_epipe_signal (&respipe);	451	s_epipe_signal (&respipe);
350	}	452	}
351		453
352	static void done_poll (void)	454	static void
		455	done_poll (void)
353	{	456	{
354	/* read any signals sent by the worker threads */	457	/* read any signals sent by the worker threads */
355	s_epipe_drain (&respipe);	458	s_epipe_drain (&respipe);
356	}	459	}
357		460
358	/* must be called at most once */	461	/* must be called at most once */
		462	static SV *
359	static SV *req_sv (aio_req req, HV *stash)	463	req_sv (aio_req req, HV *stash)
360	{	464	{
361	if (!req->self)	465	if (!req->self)
362	{	466	{
363	req->self = (SV *)newHV ();	467	req->self = (SV *)newHV ();
364	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	468	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
365	}	469	}
366		470
367	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	471	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
368	}	472	}
369		473
370	static aio_req SvAIO_REQ (SV *sv)	474	static SV *
		475	newSVaio_wd (aio_wd wd)
		476	{
		477	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		478	}
		479
		480	static aio_req
		481	SvAIO_REQ (SV *sv)
371	{	482	{
372	MAGIC *mg;	483	MAGIC *mg;
373		484
374	if (!SvROK (sv)	485	if (!SvROK (sv)
		486	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
375	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	487	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
376	&& SvSTASH (SvRV (sv)) != aio_req_stash	488	&& SvSTASH (SvRV (sv)) != aio_req_stash
377	&& !sv_derived_from (sv, "IO::AIO::REQ")))	489	&& !sv_derived_from (sv, "IO::AIO::REQ")))
378	croak ("object of class IO::AIO::REQ expected");	490	croak ("object of class IO::AIO::REQ expected");
379		491
380	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	492	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
381		493
382	return mg ? (aio_req)mg->mg_ptr : 0;	494	return mg ? (aio_req)mg->mg_ptr : 0;
383	}	495	}
384		496
385	static aio_wd SvAIO_WD (SV *sv)	497	static aio_wd
		498	SvAIO_WD (SV *sv)
386	{	499	{
387	if (!SvROK (sv)	500	if (!SvROK (sv)
		501	|| SvTYPE (SvRV (sv)) != SVt_PVMG
388	|| SvSTASH (SvRV (sv)) != aio_wd_stash	502	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
389	|| SvTYPE (SvRV (sv)) != SVt_PVMG)
390	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");
391		504
392	return (aio_wd)(long)SvIVX (SvRV (sv));	505	return (aio_wd)(long)SvIVX (SvRV (sv));
393	}	506	}
394		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;
		531	}
		532
		533	static void
395	static void aio_grp_feed (aio_req grp)	534	aio_grp_feed (aio_req grp)
396	{	535	{
397	if (grp->sv2 && SvOK (grp->sv2))	536	if (grp->sv2 && SvOK (grp->sv2))
398	{	537	{
399	dSP;	538	dSP;
400		539
…		…
408	FREETMPS;	547	FREETMPS;
409	LEAVE;	548	LEAVE;
410	}	549	}
411	}	550	}
412		551
		552	static void
413	static void req_submit (eio_req *req)	553	req_submit (eio_req *req)
414	{	554	{
415	eio_submit (req);	555	eio_submit (req);
416		556
417	if (expect_false (on_next_submit))	557	if (expect_false (on_next_submit))
418	{	558	{
…		…
425	PUTBACK;	565	PUTBACK;
426	call_sv (cb, G_DISCARD | G_EVAL);	566	call_sv (cb, G_DISCARD | G_EVAL);
427	}	567	}
428	}	568	}
429		569
		570	static int
430	static int req_invoke (eio_req *req)	571	req_invoke (eio_req *req)
431	{	572	{
432	if (req->flags & FLAG_SV2_RO_OFF)	573	if (req->flags & FLAG_SV2_RO_OFF)
433	SvREADONLY_off (req->sv2);	574	SvREADONLY_off (req->sv2);
434		575
435	if (!EIO_CANCELLED (req) && req->callback)	576	if (!EIO_CANCELLED (req) && req->callback)
…		…
457	}	598	}
458		599
459	switch (req->type)	600	switch (req->type)
460	{	601	{
461	case EIO_WD_OPEN:	602	case EIO_WD_OPEN:
462	PUSHs (sv_2mortal (sv_bless (newRV_noinc (newSViv (((long)req->wd))), aio_wd_stash)));	603	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
463	break;	604	break;
464		605
465	case EIO_READDIR:	606	case EIO_READDIR:
466	{	607	{
467	SV *rv = &PL_sv_undef;	608	SV *rv = &PL_sv_undef;
…		…
522	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))));
523	}	664	}
524	break;	665	break;
525		666
526	case EIO_OPEN:	667	case EIO_OPEN:
527	{	668	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
528	/* convert fd to fh */
529	SV *fh = &PL_sv_undef;
530
531	if (req->result >= 0)
532	{
533	GV *gv = (GV *)sv_newmortal ();
534	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
535	char sym [64];
536	int symlen;
537
538	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
539	gv_init (gv, aio_stash, sym, symlen, 0);
540
541	symlen = snprintf (
542	sym,
543	sizeof (sym),
544	"%s&=%d",
545	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
546	(int)req->result
547	);
548
549	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
550	fh = (SV *)gv;
551	}
552
553	PUSHs (fh);
554	}
555	break;	669	break;
556		670
557	case EIO_STATVFS:	671	case EIO_STATVFS:
558	case EIO_FSTATVFS:	672	case EIO_FSTATVFS:
559	{	673	{
…		…
562	#ifndef _WIN32	676	#ifndef _WIN32
563	if (req->result >= 0)	677	if (req->result >= 0)
564	{	678	{
565	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	679	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
566	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));
567		686
568	rv = sv_2mortal (newRV_noinc ((SV *)hv));	687	rv = sv_2mortal (newRV_noinc ((SV *)hv));
569		688
570	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);
571	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);
…		…
573	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);
574	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);
575	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);
576	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);
577	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);
578	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	697	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
579	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);
580	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);
581	}	700	}
582	#endif	701	#endif
583		702
…		…
611	break;	730	break;
612		731
613	case EIO_STAT:	732	case EIO_STAT:
614	case EIO_LSTAT:	733	case EIO_LSTAT:
615	case EIO_FSTAT:	734	case EIO_FSTAT:
616	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	735	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		736
617	PL_laststatval = req->result;	737	if (!(PL_laststatval = req->result))
618	/* 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 */
619	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	739	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		740
620	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)));
621	break;	746	break;
622		747
623	case EIO_READ:	748	case EIO_READ:
624	{	749	{
625	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));
…		…
628	SvSETMAGIC (req->sv2);	753	SvSETMAGIC (req->sv2);
629	PUSHs (sv_result);	754	PUSHs (sv_result);
630	}	755	}
631	break;	756	break;
632		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
633	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	822	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
634	if (req->result > 0)	823	if (req->result > 0)
635	SvIV_set (sv_result, 0);	824	SvIV_set (sv_result, 0);
636	/* FALLTHROUGH */	825	/* FALLTHROUGH */
637		826
…		…
658	}	847	}
659		848
660	return !!SvTRUE (ERRSV);	849	return !!SvTRUE (ERRSV);
661	}	850	}
662		851
		852	static void
663	static void req_destroy (aio_req req)	853	req_destroy (aio_req req)
664	{	854	{
665	if (req->self)	855	if (req->self)
666	{	856	{
667	sv_unmagic (req->self, PERL_MAGIC_ext);	857	sv_unmagic (req->self, PERL_MAGIC_ext);
668	SvREFCNT_dec (req->self);	858	SvREFCNT_dec (req->self);
…		…
672	SvREFCNT_dec (req->sv2);	862	SvREFCNT_dec (req->sv2);
673	SvREFCNT_dec (req->sv3);	863	SvREFCNT_dec (req->sv3);
674	SvREFCNT_dec (req->sv4);	864	SvREFCNT_dec (req->sv4);
675	SvREFCNT_dec (req->callback);	865	SvREFCNT_dec (req->callback);
676		866
677	Safefree (req);	867	free (req);
678	}	868	}
679		869
		870	static void
680	static void req_cancel_subs (aio_req grp)	871	req_cancel_subs (aio_req grp)
681	{	872	{
682	if (grp->type != EIO_GROUP)	873	if (grp->type != EIO_GROUP)
683	return;	874	return;
684		875
685	SvREFCNT_dec (grp->sv2);	876	SvREFCNT_dec (grp->sv2);
686	grp->sv2 = 0;	877	grp->sv2 = 0;
687		878
688	eio_grp_cancel (grp);	879	eio_grp_cancel (grp);
689	}	880	}
690		881
		882	static void ecb_cold
691	static void create_respipe (void)	883	create_respipe (void)
692	{	884	{
693	if (s_epipe_renew (&respipe))	885	if (s_epipe_renew (&respipe))
694	croak ("IO::AIO: unable to initialize result pipe");	886	croak ("IO::AIO: unable to initialize result pipe");
695	}	887	}
696		888
697	static void poll_wait (void)	889	static void
		890	poll_wait (void)
698	{	891	{
699	while (eio_nreqs ())	892	while (eio_nreqs ())
700	{	893	{
701	int size;	894	int size;
702		895
703	X_LOCK (reslock);	896	X_LOCK (EIO_POOL->reslock);
704	size = res_queue.size;	897	size = EIO_POOL->res_queue.size;
705	X_UNLOCK (reslock);	898	X_UNLOCK (EIO_POOL->reslock);
706		899
707	if (size)	900	if (size)
708	return;	901	return;
709		902
710	etp_maybe_start_thread ();	903	etp_maybe_start_thread (EIO_POOL);
711		904
712	s_epipe_wait (&respipe);	905	s_epipe_wait (&respipe);
713	}	906	}
714	}	907	}
715		908
716	static int poll_cb (void)	909	static int
		910	poll_cb (void)
717	{	911	{
718	for (;;)	912	for (;;)
719	{	913	{
720	int res = eio_poll ();	914	int res = eio_poll ();
721		915
…		…
738	croak ("IO::AIO: unable to initialise eio library");	932	croak ("IO::AIO: unable to initialise eio library");
739	}	933	}
740		934
741	/*****************************************************************************/	935	/*****************************************************************************/
742		936
743	#if !_POSIX_MAPPED_FILES	937	static SV *
744	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
745	# define munmap(addr,length) (errno = ENOSYS, -1)
746	#endif
747
748	#if !_POSIX_MEMORY_PROTECTION
749	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
750	# define PROT_NONE 0
751	# define PROT_WRITE 0
752	# define MAP_PRIVATE 0
753	# define MAP_SHARED 0
754	# define MAP_FIXED 0
755	#endif
756
757	#define MMAP_MAGIC PERL_MAGIC_ext
758
759	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
760	{
761	int old_errno = errno;
762	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
763	errno = old_errno;
764
765	mg->mg_obj = 0; /* just in case */
766
767	SvREADONLY_off (sv);
768
769	if (SvPVX (sv) != mg->mg_ptr)
770	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
771
772	SvCUR_set (sv, 0);
773	SvPVX (sv) = 0;
774	SvOK_off (sv);
775
776	return 0;
777	}
778
779	static MGVTBL mmap_vtbl = {
780	0, 0, 0, 0, mmap_free
781	};
782
783	/*****************************************************************************/
784
785	static SV * get_cb (SV *cb_sv)	938	get_cb (SV *cb_sv)
786	{	939	{
787	SvGETMAGIC (cb_sv);	940	SvGETMAGIC (cb_sv);
788	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	941	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
789	}	942	}
790		943
		944	static aio_req ecb_noinline
		945	dreq (SV *callback)
		946	{
		947	SV *cb_cv;
		948	aio_req req;
		949	int req_pri = next_pri;
		950	next_pri = EIO_PRI_DEFAULT;
		951
		952	cb_cv = get_cb (callback);
		953
		954	req = calloc (sizeof (*req), 1);
		955	if (!req)
		956	croak ("out of memory during eio_req allocation");
		957
		958	req->callback = SvREFCNT_inc (cb_cv);
		959	req->pri = req_pri;
		960
		961	return req;
		962	}
		963
791	#define dREQ \	964	#define dREQ \
792	SV *cb_cv; \	965	aio_req req = dreq (callback); \
793	aio_req req; \
794	int req_pri = next_pri; \
795	next_pri = EIO_PRI_DEFAULT; \
796	\
797	cb_cv = get_cb (callback); \
798	\
799	Newz (0, req, 1, eio_req); \
800	if (!req) \
801	croak ("out of memory during eio_req allocation"); \
802	\
803	req->callback = SvREFCNT_inc (cb_cv); \
804	req->pri = req_pri
805		966
806	#define REQ_SEND \	967	#define REQ_SEND \
807	PUTBACK; \	968	PUTBACK; \
808	req_submit (req); \	969	req_submit (req); \
809	SPAGAIN; \	970	SPAGAIN; \
810	\	971	\
811	if (GIMME_V != G_VOID) \	972	if (GIMME_V != G_VOID) \
812	XPUSHs (req_sv (req, aio_req_stash));	973	XPUSHs (req_sv (req, aio_req_stash));
813		974
814	static void	975	ecb_inline void
815	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)	976	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
816	{	977	{
817	if (SvROK (path))	978	if (expect_false (SvROK (path)))
818	{	979	{
819	AV *av = (AV *)SvRV (path);	980	SV *rv = SvRV (path);
820	SV *wdob;	981	SV *wdob;
821		982
822	if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)	983	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
823	croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");	984	{
824
825	path = AvARRAY (av)[1];	985	path = AvARRAY (rv)[1];
826	wdob = AvARRAY (av)[0];	986	wdob = AvARRAY (rv)[0];
827		987
		988	if (SvOK (wdob))
		989	{
828	*wd = SvAIO_WD (wdob);	990	*wd = SvAIO_WD (wdob);
829	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));	991	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		992	}
		993	else
		994	*wd = EIO_INVALID_WD;
		995	}
		996	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		997	{
		998	*wd = (aio_wd)(long)SvIVX (rv);
		999	*wdsv = SvREFCNT_inc_NN (rv);
		1000	*ptr = ".";
		1001	return; /* path set to "." */
		1002	}
		1003	else
		1004	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
830	}	1005	}
831		1006
832	*pathsv = newSVsv (path);	1007	*pathsv = newSVsv (path);
833	*ptr = SvPVbyte_nolen (*pathsv);	1008	*ptr = SvPVbyte_nolen (*pathsv);
834	}	1009	}
835		1010
836	static void	1011	static void ecb_noinline
837	req_set_path1 (aio_req req, SV *path)	1012	req_set_path1 (aio_req req, SV *path)
838	{	1013	{
839	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);	1014	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
840	}	1015	}
841		1016
842	static void	1017	static void ecb_noinline
843	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)	1018	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
844	{	1019	{
845	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;	1020	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
846		1021
847	switch (SvTYPE (rv))	1022	switch (SvTYPE (rv))
…		…
857	default:	1032	default:
858	req->type = type_path;	1033	req->type = type_path;
859	req_set_path1 (req, fh_or_path);	1034	req_set_path1 (req, fh_or_path);
860	break;	1035	break;
861	}	1036	}
862
863	}	1037	}
		1038
		1039	/*****************************************************************************/
		1040
		1041	static void
		1042	ts_set (struct timespec *ts, NV value)
		1043	{
		1044	ts->tv_sec = value;
		1045	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1046	}
		1047
		1048	static NV
		1049	ts_get (const struct timespec *ts)
		1050	{
		1051	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1052	}
		1053
		1054	/*****************************************************************************/
		1055
		1056	XS(boot_IO__AIO) ecb_cold;
864		1057
865	MODULE = IO::AIO PACKAGE = IO::AIO	1058	MODULE = IO::AIO PACKAGE = IO::AIO
866		1059
867	PROTOTYPES: ENABLE	1060	PROTOTYPES: ENABLE
868		1061
…		…
873	IV iv;	1066	IV iv;
874	} *civ, const_iv[] = {	1067	} *civ, const_iv[] = {
875	# define const_niv(name, value) { # name, (IV) value },	1068	# define const_niv(name, value) { # name, (IV) value },
876	# define const_iv(name) { # name, (IV) name },	1069	# define const_iv(name) { # name, (IV) name },
877	# define const_eio(name) { # name, (IV) EIO_ ## name },	1070	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1071
		1072	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1073	/* the first block can be undef if missing */
		1074	const_iv (ENOSYS)
878	const_iv (EXDEV)	1075	const_iv (EXDEV)
879	const_iv (ENOSYS)	1076	const_iv (EBADR)
		1077
		1078	/* for lseek */
		1079	const_iv (SEEK_DATA)
		1080	const_iv (SEEK_HOLE)
		1081
		1082	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1083	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1084	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1085	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1086	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1087	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1088
		1089	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1090	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1091	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1092	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1093	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1094
		1095	/* the second block will be 0 when missing */
		1096	const_iv (O_ACCMODE)
		1097
880	const_iv (O_RDONLY)	1098	const_iv (O_RDONLY)
881	const_iv (O_WRONLY)	1099	const_iv (O_WRONLY)
882	const_iv (O_RDWR)	1100	const_iv (O_RDWR)
883	const_iv (O_CREAT)	1101	const_iv (O_CREAT)
884	const_iv (O_TRUNC)	1102	const_iv (O_TRUNC)
…		…
897	const_iv (O_SEARCH)	1115	const_iv (O_SEARCH)
898	const_iv (O_DIRECTORY)	1116	const_iv (O_DIRECTORY)
899	const_iv (O_DSYNC)	1117	const_iv (O_DSYNC)
900	const_iv (O_RSYNC)	1118	const_iv (O_RSYNC)
901	const_iv (O_SYNC)	1119	const_iv (O_SYNC)
		1120	const_iv (O_PATH)
		1121	const_iv (O_TMPFILE)
902	const_iv (O_TTY_INIT)	1122	const_iv (O_TTY_INIT)
903		1123
904	const_iv (S_IFIFO)	1124	const_iv (S_IFIFO)
905	const_iv (S_IFCHR)	1125	const_iv (S_IFCHR)
906	const_iv (S_IFBLK)	1126	const_iv (S_IFBLK)
…		…
908	const_iv (S_IFREG)	1128	const_iv (S_IFREG)
909	const_iv (S_IFDIR)	1129	const_iv (S_IFDIR)
910	const_iv (S_IFWHT)	1130	const_iv (S_IFWHT)
911	const_iv (S_IFSOCK)	1131	const_iv (S_IFSOCK)
912	const_iv (S_IFMT)	1132	const_iv (S_IFMT)
913
914	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
915	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
916	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
917	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
918	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
919	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
920
921	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
922	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
923	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
924	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
925	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
926		1133
927	const_iv (ST_RDONLY)	1134	const_iv (ST_RDONLY)
928	const_iv (ST_NOSUID)	1135	const_iv (ST_NOSUID)
929	const_iv (ST_NODEV)	1136	const_iv (ST_NODEV)
930	const_iv (ST_NOEXEC)	1137	const_iv (ST_NOEXEC)
…		…
940	const_iv (PROT_NONE)	1147	const_iv (PROT_NONE)
941	const_iv (PROT_EXEC)	1148	const_iv (PROT_EXEC)
942	const_iv (PROT_READ)	1149	const_iv (PROT_READ)
943	const_iv (PROT_WRITE)	1150	const_iv (PROT_WRITE)
944		1151
945	/*const_iv (MAP_FIXED)*/
946	const_iv (MAP_PRIVATE)	1152	const_iv (MAP_PRIVATE)
947	const_iv (MAP_SHARED)	1153	const_iv (MAP_SHARED)
		1154	const_iv (MAP_FIXED)
948	const_iv (MAP_ANONYMOUS)	1155	const_iv (MAP_ANONYMOUS)
949		1156
950	/* linuxish */	1157	/* linuxish */
951	const_iv (MAP_HUGETLB)
952	const_iv (MAP_LOCKED)	1158	const_iv (MAP_LOCKED)
953	const_iv (MAP_NORESERVE)	1159	const_iv (MAP_NORESERVE)
954	const_iv (MAP_POPULATE)	1160	const_iv (MAP_POPULATE)
955	const_iv (MAP_NONBLOCK)	1161	const_iv (MAP_NONBLOCK)
		1162	const_iv (MAP_GROWSDOWN)
		1163	const_iv (MAP_32BIT)
		1164	const_iv (MAP_HUGETLB)
		1165	const_iv (MAP_STACK)
		1166
		1167	const_iv (MREMAP_MAYMOVE)
		1168	const_iv (MREMAP_FIXED)
		1169
		1170	const_iv (F_DUPFD_CLOEXEC)
		1171
		1172	const_iv (MSG_CMSG_CLOEXEC)
		1173	const_iv (SOCK_CLOEXEC)
		1174
		1175	const_iv (F_OFD_GETLK)
		1176	const_iv (F_OFD_SETLK)
		1177	const_iv (F_OFD_GETLKW)
		1178
		1179	const_iv (FIFREEZE)
		1180	const_iv (FITHAW)
		1181	const_iv (FITRIM)
		1182	const_iv (FICLONE)
		1183	const_iv (FICLONERANGE)
		1184	const_iv (FIDEDUPERANGE)
		1185
		1186	const_iv (FS_IOC_GETFLAGS)
		1187	const_iv (FS_IOC_SETFLAGS)
		1188	const_iv (FS_IOC_GETVERSION)
		1189	const_iv (FS_IOC_SETVERSION)
		1190	const_iv (FS_IOC_FIEMAP)
		1191	const_iv (FS_IOC_FSGETXATTR)
		1192	const_iv (FS_IOC_FSSETXATTR)
		1193	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1194	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1195	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1196
		1197	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1198
		1199	const_iv (FS_SECRM_FL)
		1200	const_iv (FS_UNRM_FL)
		1201	const_iv (FS_COMPR_FL)
		1202	const_iv (FS_SYNC_FL)
		1203	const_iv (FS_IMMUTABLE_FL)
		1204	const_iv (FS_APPEND_FL)
		1205	const_iv (FS_NODUMP_FL)
		1206	const_iv (FS_NOATIME_FL)
		1207	const_iv (FS_DIRTY_FL)
		1208	const_iv (FS_COMPRBLK_FL)
		1209	const_iv (FS_NOCOMP_FL)
		1210	const_iv (FS_ENCRYPT_FL)
		1211	const_iv (FS_BTREE_FL)
		1212	const_iv (FS_INDEX_FL)
		1213	const_iv (FS_JOURNAL_DATA_FL)
		1214	const_iv (FS_NOTAIL_FL)
		1215	const_iv (FS_DIRSYNC_FL)
		1216	const_iv (FS_TOPDIR_FL)
		1217	const_iv (FS_FL_USER_MODIFIABLE)
		1218
		1219	const_iv (FS_XFLAG_REALTIME)
		1220	const_iv (FS_XFLAG_PREALLOC)
		1221	const_iv (FS_XFLAG_IMMUTABLE)
		1222	const_iv (FS_XFLAG_APPEND)
		1223	const_iv (FS_XFLAG_SYNC)
		1224	const_iv (FS_XFLAG_NOATIME)
		1225	const_iv (FS_XFLAG_NODUMP)
		1226	const_iv (FS_XFLAG_RTINHERIT)
		1227	const_iv (FS_XFLAG_PROJINHERIT)
		1228	const_iv (FS_XFLAG_NOSYMLINKS)
		1229	const_iv (FS_XFLAG_EXTSIZE)
		1230	const_iv (FS_XFLAG_EXTSZINHERIT)
		1231	const_iv (FS_XFLAG_NODEFRAG)
		1232	const_iv (FS_XFLAG_FILESTREAM)
		1233	const_iv (FS_XFLAG_DAX)
		1234	const_iv (FS_XFLAG_HASATTR)
		1235
		1236	const_iv (FIEMAP_FLAG_SYNC)
		1237	const_iv (FIEMAP_FLAG_XATTR)
		1238	const_iv (FIEMAP_FLAGS_COMPAT)
		1239	const_iv (FIEMAP_EXTENT_LAST)
		1240	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1241	const_iv (FIEMAP_EXTENT_DELALLOC)
		1242	const_iv (FIEMAP_EXTENT_ENCODED)
		1243	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1244	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1245	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1246	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1247	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1248	const_iv (FIEMAP_EXTENT_MERGED)
		1249	const_iv (FIEMAP_EXTENT_SHARED)
		1250
		1251	const_iv (SPLICE_F_MOVE)
		1252	const_iv (SPLICE_F_NONBLOCK)
		1253	const_iv (SPLICE_F_MORE)
		1254	const_iv (SPLICE_F_GIFT)
		1255
		1256	const_iv (EFD_CLOEXEC)
		1257	const_iv (EFD_NONBLOCK)
		1258	const_iv (EFD_SEMAPHORE)
		1259
		1260	const_iv (CLOCK_REALTIME)
		1261	const_iv (CLOCK_MONOTONIC)
		1262	const_iv (CLOCK_BOOTTIME)
		1263	const_iv (CLOCK_REALTIME_ALARM)
		1264	const_iv (CLOCK_BOOTTIME_ALARM)
		1265
		1266	const_iv (TFD_NONBLOCK)
		1267	const_iv (TFD_CLOEXEC)
		1268
		1269	const_iv (TFD_TIMER_ABSTIME)
		1270	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1271
		1272	/* these are libeio constants, and are independent of gendef0 */
		1273	const_eio (SEEK_SET)
		1274	const_eio (SEEK_CUR)
		1275	const_eio (SEEK_END)
956		1276
957	const_eio (MCL_FUTURE)	1277	const_eio (MCL_FUTURE)
958	const_eio (MCL_CURRENT)	1278	const_eio (MCL_CURRENT)
		1279	const_eio (MCL_ONFAULT)
959		1280
960	const_eio (MS_ASYNC)	1281	const_eio (MS_ASYNC)
961	const_eio (MS_INVALIDATE)	1282	const_eio (MS_INVALIDATE)
962	const_eio (MS_SYNC)	1283	const_eio (MS_SYNC)
963		1284
…		…
966	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1287	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
967	const_eio (SYNC_FILE_RANGE_WRITE)	1288	const_eio (SYNC_FILE_RANGE_WRITE)
968	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1289	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
969		1290
970	const_eio (FALLOC_FL_KEEP_SIZE)	1291	const_eio (FALLOC_FL_KEEP_SIZE)
		1292	const_eio (FALLOC_FL_PUNCH_HOLE)
		1293	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1294	const_eio (FALLOC_FL_ZERO_RANGE)
		1295	const_eio (FALLOC_FL_INSERT_RANGE)
		1296	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1297
		1298	const_eio (RENAME_NOREPLACE)
		1299	const_eio (RENAME_EXCHANGE)
		1300	const_eio (RENAME_WHITEOUT)
971		1301
972	const_eio (READDIR_DENTS)	1302	const_eio (READDIR_DENTS)
973	const_eio (READDIR_DIRS_FIRST)	1303	const_eio (READDIR_DIRS_FIRST)
974	const_eio (READDIR_STAT_ORDER)	1304	const_eio (READDIR_STAT_ORDER)
975	const_eio (READDIR_FOUND_UNKNOWN)	1305	const_eio (READDIR_FOUND_UNKNOWN)
…		…
993	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1323	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
994	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));	1324	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
995		1325
996	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1326	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
997		1327
		1328	/* allocate dummy pipe fd for aio_close */
		1329	{
		1330	int pipefd [2];
		1331
		1332	if (
		1333	#ifdef _WIN32
		1334	_pipe (pipefd, 1, _O_BINARY) < 0
		1335	#else
		1336	pipe (pipefd) < 0
		1337	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1338	#endif
		1339	|| close (pipefd [1]) < 0
		1340	)
		1341	croak ("IO::AIO: unable to create dummy pipe for aio_close");
		1342
		1343	close_fd = pipefd [0];
		1344	}
		1345
998	reinit ();	1346	reinit ();
999	}	1347	}
1000		1348
1001	void	1349	void
1002	reinit ()	1350	reinit ()
…		…
1043	PROTOTYPE: $	1391	PROTOTYPE: $
1044	CODE:	1392	CODE:
1045	max_outstanding = maxreqs;	1393	max_outstanding = maxreqs;
1046		1394
1047	void	1395	void
1048	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1396	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1049	PPCODE:	1397	PPCODE:
1050	{	1398	{
1051	dREQ;	1399	dREQ;
1052		1400
1053	req->type = EIO_WD_OPEN;	1401	req->type = EIO_WD_OPEN;
…		…
1055		1403
1056	REQ_SEND;	1404	REQ_SEND;
1057	}	1405	}
1058		1406
1059	void	1407	void
1060	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1408	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1061	PPCODE:	1409	PPCODE:
1062	{	1410	{
1063	dREQ;	1411	dREQ;
1064		1412
1065	req->type = EIO_OPEN;	1413	req->type = EIO_OPEN;
…		…
1069		1417
1070	REQ_SEND;	1418	REQ_SEND;
1071	}	1419	}
1072		1420
1073	void	1421	void
1074	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1422	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1075	ALIAS:	1423	ALIAS:
1076	aio_fsync = EIO_FSYNC	1424	aio_fsync = EIO_FSYNC
1077	aio_fdatasync = EIO_FDATASYNC	1425	aio_fdatasync = EIO_FDATASYNC
1078	aio_syncfs = EIO_SYNCFS	1426	aio_syncfs = EIO_SYNCFS
1079	PPCODE:	1427	PPCODE:
1080	{	1428	{
1081	int fd = s_fileno_croak (fh, 0);	1429	int fd = s_fileno_croak (fh, 0);
1082	dREQ;	1430	dREQ;
1083		1431
1084	req->type = ix;	1432	req->type = ix;
1085	req->sv1 = newSVsv (fh);	1433	req->sv1 = newSVsv (fh);
1086	req->int1 = fd;	1434	req->int1 = fd;
1087		1435
1088	REQ_SEND (req);	1436	REQ_SEND;
1089	}	1437	}
1090		1438
1091	void	1439	void
1092	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1440	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1093	PPCODE:	1441	PPCODE:
1094	{	1442	{
1095	int fd = s_fileno_croak (fh, 0);	1443	int fd = s_fileno_croak (fh, 0);
1096	dREQ;	1444	dREQ;
1097		1445
1098	req->type = EIO_SYNC_FILE_RANGE;	1446	req->type = EIO_SYNC_FILE_RANGE;
1099	req->sv1 = newSVsv (fh);	1447	req->sv1 = newSVsv (fh);
1100	req->int1 = fd;	1448	req->int1 = fd;
1101	req->offs = offset;	1449	req->offs = offset;
1102	req->size = nbytes;	1450	req->size = nbytes;
1103	req->int2 = flags;	1451	req->int2 = flags;
1104		1452
1105	REQ_SEND (req);	1453	REQ_SEND;
1106	}	1454	}
1107		1455
1108	void	1456	void
1109	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1457	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1110	PPCODE:	1458	PPCODE:
1111	{	1459	{
1112	int fd = s_fileno_croak (fh, 0);	1460	int fd = s_fileno_croak (fh, 0);
1113	dREQ;	1461	dREQ;
1114		1462
1115	req->type = EIO_FALLOCATE;	1463	req->type = EIO_FALLOCATE;
1116	req->sv1 = newSVsv (fh);	1464	req->sv1 = newSVsv (fh);
1117	req->int1 = fd;	1465	req->int1 = fd;
1118	req->int2 = mode;	1466	req->int2 = mode;
1119	req->offs = offset;	1467	req->offs = offset;
1120	req->size = len;	1468	req->size = len;
1121		1469
1122	REQ_SEND (req);	1470	REQ_SEND;
1123	}	1471	}
1124		1472
1125	void	1473	void
1126	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1474	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1127	PPCODE:	1475	PPCODE:
1128	{	1476	{
1129	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1130	int fd = s_fileno_croak (fh, 0);
1131	dREQ;	1477	dREQ;
		1478	int fd = s_fileno_croak (fh, 0);
1132		1479
1133	if (expect_false (close_fd < 0))	1480	/* partially duplicate logic in s_fileno */
		1481	SvGETMAGIC (fh);
		1482
		1483	if (SvROK (fh))
		1484	{
		1485	fh = SvRV (fh);
		1486	SvGETMAGIC (fh);
		1487	}
		1488
		1489	if (SvTYPE (fh) == SVt_PVGV)
1134	{	1490	{
1135	int pipefd [2];	1491	/* perl filehandle */
		1492	PerlIOUnix_refcnt_inc (fd);
		1493	do_close ((GV *)fh, 1);
1136		1494
1137	if (	1495	req->type = EIO_CLOSE;
1138	#ifdef _WIN32	1496	req->int1 = fd;
1139	_pipe (pipefd, 1, _O_BINARY) < 0	1497	req->sv2 = newSVsv (fh);
1140	#else
1141	pipe (pipefd) < 0
1142	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
1143	#endif
1144	|| close (pipefd [1]) < 0
1145	)
1146	abort (); /*D*/
1147
1148	close_fd = pipefd [0];
1149	}	1498	}
1150		1499	else
		1500	{
		1501	/* fd number */
1151	req->type = EIO_DUP2;	1502	req->type = EIO_DUP2;
1152	req->int1 = close_fd;	1503	req->int1 = close_fd;
		1504	req->sv2 = newSVsv (fh);
		1505	req->int2 = fd;
		1506	}
		1507
		1508	REQ_SEND;
		1509	}
		1510
		1511	void
		1512	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1513	PPCODE:
		1514	{
		1515	int fd = s_fileno_croak (fh, 0);
		1516	dREQ;
		1517
		1518	req->type = EIO_SEEK;
1153	req->sv2 = newSVsv (fh);	1519	req->sv1 = newSVsv (fh);
1154	req->int2 = fd;	1520	req->int1 = fd;
		1521	req->offs = SvVAL64 (offset);
		1522	req->int2 = whence;
1155		1523
1156	REQ_SEND (req);	1524	REQ_SEND;
1157	}	1525	}
1158		1526
1159	void	1527	void
1160	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1528	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1161	ALIAS:	1529	ALIAS:
1162	aio_read = EIO_READ	1530	aio_read = EIO_READ
1163	aio_write = EIO_WRITE	1531	aio_write = EIO_WRITE
1164	PPCODE:	1532	PPCODE:
1165	{	1533	{
…		…
1181	len = svlen - dataoffset;	1549	len = svlen - dataoffset;
1182	}	1550	}
1183	else	1551	else
1184	{	1552	{
1185	/* read: check type and grow scalar as necessary */	1553	/* read: check type and grow scalar as necessary */
1186	SvUPGRADE (data, SVt_PV);	1554	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1187	svptr = SvGROW (data, len + dataoffset + 1);	1555	svptr = sv_grow (data, len + dataoffset + 1);
		1556	else if (SvCUR (data) < len + dataoffset)
		1557	croak ("length + dataoffset outside of scalar, and cannot grow");
1188	}	1558	}
1189		1559
1190	{	1560	{
1191	dREQ;	1561	dREQ;
1192		1562
…		…
1208	REQ_SEND;	1578	REQ_SEND;
1209	}	1579	}
1210	}	1580	}
1211		1581
1212	void	1582	void
		1583	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1584	ALIAS:
		1585	aio_ioctl = EIO_IOCTL
		1586	aio_fcntl = EIO_FCNTL
		1587	PPCODE:
		1588	{
		1589	int fd = s_fileno_croak (fh, 0);
		1590	char *svptr;
		1591
		1592	if (SvPOK (arg) || !SvNIOK (arg))
		1593	{
		1594	STRLEN svlen;
		1595	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1596	#ifdef IOCPARM_LEN
		1597	STRLEN need = IOCPARM_LEN (request);
		1598	#else
		1599	STRLEN need = 256;
		1600	#endif
		1601
		1602	if (svlen < need)
		1603	svptr = SvGROW (arg, need);
		1604	}
		1605	else
		1606	svptr = (char *)SvIV (arg);
		1607
		1608	{
		1609	dREQ;
		1610
		1611	req->type = ix;
		1612	req->sv1 = newSVsv (fh);
		1613	req->int1 = fd;
		1614	req->int2 = (long)request;
		1615	req->sv2 = SvREFCNT_inc (arg);
		1616	req->ptr2 = svptr;
		1617
		1618	REQ_SEND;
		1619	}
		1620	}
		1621
		1622	void
1213	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1623	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1214	ALIAS:	1624	ALIAS:
1215	aio_readlink = EIO_READLINK	1625	aio_readlink = EIO_READLINK
1216	aio_realpath = EIO_REALPATH	1626	aio_realpath = EIO_REALPATH
1217	PPCODE:	1627	PPCODE:
1218	{	1628	{
…		…
1223		1633
1224	REQ_SEND;	1634	REQ_SEND;
1225	}	1635	}
1226		1636
1227	void	1637	void
1228	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1638	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1229	PPCODE:	1639	PPCODE:
1230	{	1640	{
1231	int ifd = s_fileno_croak (in_fh , 0);	1641	int ifd = s_fileno_croak (in_fh , 0);
1232	int ofd = s_fileno_croak (out_fh, 1);	1642	int ofd = s_fileno_croak (out_fh, 1);
1233	dREQ;	1643	dREQ;
1234		1644
1235	req->type = EIO_SENDFILE;	1645	req->type = EIO_SENDFILE;
1236	req->sv1 = newSVsv (out_fh);	1646	req->sv1 = newSVsv (out_fh);
1237	req->int1 = ofd;	1647	req->int1 = ofd;
…		…
1242		1652
1243	REQ_SEND;	1653	REQ_SEND;
1244	}	1654	}
1245		1655
1246	void	1656	void
1247	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1657	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1248	PPCODE:	1658	PPCODE:
1249	{	1659	{
1250	int fd = s_fileno_croak (fh, 0);	1660	int fd = s_fileno_croak (fh, 0);
1251	dREQ;	1661	dREQ;
1252		1662
1253	req->type = EIO_READAHEAD;	1663	req->type = EIO_READAHEAD;
1254	req->sv1 = newSVsv (fh);	1664	req->sv1 = newSVsv (fh);
1255	req->int1 = fd;	1665	req->int1 = fd;
…		…
1258		1668
1259	REQ_SEND;	1669	REQ_SEND;
1260	}	1670	}
1261		1671
1262	void	1672	void
1263	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1673	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1264	ALIAS:	1674	ALIAS:
1265	aio_stat = EIO_STAT	1675	aio_stat = EIO_STAT
1266	aio_lstat = EIO_LSTAT	1676	aio_lstat = EIO_LSTAT
1267	aio_statvfs = EIO_STATVFS	1677	aio_statvfs = EIO_STATVFS
1268	PPCODE:	1678	PPCODE:
1269	{	1679	{
1270	dREQ;	1680	dREQ;
1271		1681
1272	req->sv1 = newSVsv (fh_or_path);
1273	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);	1682	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
		1683
1274	REQ_SEND;	1684	REQ_SEND;
1275	}	1685	}
		1686
		1687	void
		1688	st_xtime ()
		1689	ALIAS:
		1690	st_atime = 0x01
		1691	st_mtime = 0x02
		1692	st_ctime = 0x04
		1693	st_btime = 0x08
		1694	st_xtime = 0x0f
		1695	PPCODE:
		1696	EXTEND (SP, 4);
		1697	if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1698	if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1699	if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1700	if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
		1701
		1702	void
		1703	st_xtimensec ()
		1704	ALIAS:
		1705	st_atimensec = 0x01
		1706	st_mtimensec = 0x02
		1707	st_ctimensec = 0x04
		1708	st_btimensec = 0x08
		1709	st_xtimensec = 0x0f
		1710	st_btimesec = 0x10
		1711	st_gen = 0x20
		1712	PPCODE:
		1713	EXTEND (SP, 4);
		1714	if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
		1715	if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
		1716	if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
		1717	if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
		1718	if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
		1719	if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1276		1720
1277	UV	1721	UV
1278	major (UV dev)	1722	major (UV dev)
1279	ALIAS:	1723	ALIAS:
1280	minor = 1	1724	minor = 1
1281	CODE:	1725	CODE:
1282	RETVAL = ix ? major (dev) : minor (dev);	1726	RETVAL = ix ? minor (dev) : major (dev);
1283	OUTPUT:	1727	OUTPUT:
1284	RETVAL	1728	RETVAL
1285		1729
1286	UV	1730	UV
1287	makedev (UV maj, UV min)	1731	makedev (UV maj, UV min)
…		…
1289	RETVAL = makedev (maj, min);	1733	RETVAL = makedev (maj, min);
1290	OUTPUT:	1734	OUTPUT:
1291	RETVAL	1735	RETVAL
1292		1736
1293	void	1737	void
1294	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1738	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1295	PPCODE:	1739	PPCODE:
1296	{	1740	{
1297	dREQ;	1741	dREQ;
1298		1742
1299	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1743	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1302		1746
1303	REQ_SEND;	1747	REQ_SEND;
1304	}	1748	}
1305		1749
1306	void	1750	void
1307	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1751	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1308	PPCODE:	1752	PPCODE:
1309	{	1753	{
1310	dREQ;	1754	dREQ;
1311		1755
1312	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1756	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1314		1758
1315	REQ_SEND;	1759	REQ_SEND;
1316	}	1760	}
1317		1761
1318	void	1762	void
1319	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1763	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1320	ALIAS:
1321	aio_chmod = EIO_CHMOD
1322	aio_mkdir = EIO_MKDIR
1323	PPCODE:	1764	PPCODE:
1324	{	1765	{
1325	dREQ;	1766	dREQ;
1326		1767
1327	req->int2 = mode;	1768	req->int2 = mode;
…		…
1329		1770
1330	REQ_SEND;	1771	REQ_SEND;
1331	}	1772	}
1332		1773
1333	void	1774	void
1334	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1775	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1335	PPCODE:	1776	PPCODE:
1336	{	1777	{
1337	dREQ;	1778	dREQ;
1338		1779
1339	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1780	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1342		1783
1343	REQ_SEND;	1784	REQ_SEND;
1344	}	1785	}
1345		1786
1346	void	1787	void
1347	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1788	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1348	PPCODE:	1789	PPCODE:
1349	{	1790	{
1350	dREQ;	1791	dREQ;
1351		1792
1352	req->type = EIO_READDIR;	1793	req->type = EIO_READDIR;
1353	req->sv1 = newSVsv (pathname);
1354	req->ptr1 = SvPVbyte_nolen (req->sv1);
1355	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1794	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1356		1795
1357	if (flags & EIO_READDIR_DENTS)	1796	if (flags & EIO_READDIR_DENTS)
1358	req->int1 |= EIO_READDIR_CUSTOM2;	1797	req->int1 |= EIO_READDIR_CUSTOM2;
1359		1798
		1799	req_set_path1 (req, pathname);
		1800
1360	REQ_SEND;	1801	REQ_SEND;
1361	}	1802	}
1362		1803
1363	void	1804	void
		1805	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1806	PPCODE:
		1807	{
		1808	dREQ;
		1809
		1810	req->type = EIO_MKDIR;
		1811	req->int2 = mode;
		1812	req_set_path1 (req, pathname);
		1813
		1814	REQ_SEND;
		1815	}
		1816
		1817	void
1364	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1818	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1365	ALIAS:	1819	ALIAS:
1366	aio_unlink = EIO_UNLINK	1820	aio_unlink = EIO_UNLINK
1367	aio_rmdir = EIO_RMDIR	1821	aio_rmdir = EIO_RMDIR
1368	aio_readdir = EIO_READDIR	1822	aio_readdir = EIO_READDIR
1369	PPCODE:	1823	PPCODE:
…		…
1375		1829
1376	REQ_SEND;	1830	REQ_SEND;
1377	}	1831	}
1378		1832
1379	void	1833	void
1380	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1834	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1381	ALIAS:	1835	ALIAS:
1382	aio_link = EIO_LINK	1836	aio_link = EIO_LINK
1383	aio_symlink = EIO_SYMLINK	1837	aio_symlink = EIO_SYMLINK
1384	aio_rename = EIO_RENAME	1838	aio_rename = EIO_RENAME
1385	PPCODE:	1839	PPCODE:
1386	{	1840	{
		1841	eio_wd wd2 = 0;
1387	dREQ;	1842	dREQ;
1388	eio_wd wd2;
1389		1843
1390	req->type = ix;	1844	req->type = ix;
1391	req_set_path1 (req, oldpath);	1845	req_set_path1 (req, oldpath);
1392	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);	1846	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1393	req->int3 = (long)wd2;	1847	req->int3 = (long)wd2;
1394		1848
1395	REQ_SEND;	1849	REQ_SEND;
1396	}	1850	}
1397		1851
1398	void	1852	void
		1853	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1854	PPCODE:
		1855	{
		1856	eio_wd wd2 = 0;
		1857	dREQ;
		1858
		1859	req->type = EIO_RENAME;
		1860	req_set_path1 (req, oldpath);
		1861	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1862	req->int2 = flags;
		1863	req->int3 = (long)wd2;
		1864
		1865	REQ_SEND;
		1866	}
		1867
		1868	void
1399	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1869	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1400	PPCODE:	1870	PPCODE:
1401	{	1871	{
1402	dREQ;	1872	dREQ;
1403		1873
1404	req->type = EIO_MKNOD;	1874	req->type = EIO_MKNOD;
…		…
1408		1878
1409	REQ_SEND;	1879	REQ_SEND;
1410	}	1880	}
1411		1881
1412	void	1882	void
1413	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1883	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1414	ALIAS:	1884	ALIAS:
1415	aio_mtouch = EIO_MTOUCH	1885	aio_mtouch = EIO_MTOUCH
1416	aio_msync = EIO_MSYNC	1886	aio_msync = EIO_MSYNC
1417	PPCODE:	1887	PPCODE:
1418	{	1888	{
1419	STRLEN svlen;	1889	STRLEN svlen;
1420	char *svptr = SvPVbyte (data, svlen);	1890	char *svptr = SvPVbyte (data, svlen);
1421	UV len = SvUV (length);	1891	UV len = SvUV (length);
		1892
		1893	if (flags < 0)
		1894	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1422		1895
1423	if (offset < 0)	1896	if (offset < 0)
1424	offset += svlen;	1897	offset += svlen;
1425		1898
1426	if (offset < 0 || offset > svlen)	1899	if (offset < 0 || offset > svlen)
…		…
1441	REQ_SEND;	1914	REQ_SEND;
1442	}	1915	}
1443	}	1916	}
1444		1917
1445	void	1918	void
1446	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1919	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1447	PPCODE:	1920	PPCODE:
1448	{	1921	{
1449	STRLEN svlen;	1922	STRLEN svlen;
1450	char *svptr = SvPVbyte (data, svlen);	1923	char *svptr = SvPVbyte (data, svlen);
1451	UV len = SvUV (length);	1924	UV len = SvUV (length);
…		…
1470	REQ_SEND;	1943	REQ_SEND;
1471	}	1944	}
1472	}	1945	}
1473		1946
1474	void	1947	void
1475	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1948	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1476	PPCODE:	1949	PPCODE:
1477	{	1950	{
1478	dREQ;	1951	dREQ;
1479		1952
1480	req->type = EIO_MLOCKALL;	1953	req->type = EIO_MLOCKALL;
…		…
1482		1955
1483	REQ_SEND;	1956	REQ_SEND;
1484	}	1957	}
1485		1958
1486	void	1959	void
		1960	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1961	PPCODE:
		1962	{
		1963	int fd = s_fileno_croak (fh, 0);
		1964	dREQ;
		1965
		1966	req->type = EIO_CUSTOM;
		1967	req->sv1 = newSVsv (fh);
		1968	req->int1 = fd;
		1969
		1970	req->feed = fiemap;
		1971	#if HAVE_FIEMAP
		1972	/* keep our fingers crossed that the next two types are 64 bit */
		1973	req->offs = start;
		1974	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1975	req->int2 = flags;
		1976	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1977	#endif
		1978
		1979	REQ_SEND;
		1980	}
		1981
		1982	void
		1983	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1984	PPCODE:
		1985	{
		1986	char *svptr = 0;
		1987
		1988	sv_clear_foreign (data);
		1989
		1990	if (length) /* known length, directly read into scalar */
		1991	{
		1992	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1993	svptr = sv_grow (data, length + 1);
		1994	else if (SvCUR (data) < length)
		1995	croak ("length outside of scalar, and cannot grow");
		1996	else
		1997	svptr = SvPVbyte_nolen (data);
		1998	}
		1999
		2000	{
		2001	dREQ;
		2002
		2003	req->type = EIO_SLURP;
		2004	req_set_path1 (req, pathname);
		2005	req->offs = offset;
		2006	req->size = length;
		2007	req->sv2 = SvREFCNT_inc (data);
		2008	req->ptr2 = svptr;
		2009
		2010	if (!SvREADONLY (data))
		2011	{
		2012	SvREADONLY_on (data);
		2013	req->flags |= FLAG_SV2_RO_OFF;
		2014	}
		2015
		2016	REQ_SEND;
		2017	}
		2018	}
		2019
		2020	void
1487	aio_busy (double delay, SV *callback=&PL_sv_undef)	2021	aio_busy (double delay, SV *callback = &PL_sv_undef)
1488	PPCODE:	2022	PPCODE:
1489	{	2023	{
1490	dREQ;	2024	dREQ;
1491		2025
1492	req->type = EIO_BUSY;	2026	req->type = EIO_BUSY;
…		…
1494		2028
1495	REQ_SEND;	2029	REQ_SEND;
1496	}	2030	}
1497		2031
1498	void	2032	void
1499	aio_group (SV *callback=&PL_sv_undef)	2033	aio_group (SV *callback = &PL_sv_undef)
1500	PPCODE:	2034	PPCODE:
1501	{	2035	{
1502	dREQ;	2036	dREQ;
1503		2037
1504	req->type = EIO_GROUP;	2038	req->type = EIO_GROUP;
1505		2039
		2040	PUTBACK;
1506	req_submit (req);	2041	req_submit (req);
		2042	SPAGAIN;
		2043
1507	XPUSHs (req_sv (req, aio_grp_stash));	2044	XPUSHs (req_sv (req, aio_grp_stash));
1508	}	2045	}
1509		2046
1510	void	2047	void
1511	aio_nop (SV *callback=&PL_sv_undef)	2048	aio_nop (SV *callback = &PL_sv_undef)
1512	ALIAS:	2049	ALIAS:
1513	aio_nop = EIO_NOP	2050	aio_nop = EIO_NOP
1514	aio_sync = EIO_SYNC	2051	aio_sync = EIO_SYNC
1515	PPCODE:	2052	PPCODE:
1516	{	2053	{
…		…
1520		2057
1521	REQ_SEND;	2058	REQ_SEND;
1522	}	2059	}
1523		2060
1524	int	2061	int
1525	aioreq_pri (int pri = 0)	2062	aioreq_pri (int pri = NO_INIT)
1526	CODE:	2063	CODE:
1527	RETVAL = next_pri;	2064	RETVAL = next_pri;
1528	if (items > 0)	2065	if (items > 0)
1529	{	2066	{
1530	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2067	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1620	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2157	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1621	OUTPUT:	2158	OUTPUT:
1622	RETVAL	2159	RETVAL
1623		2160
1624	void	2161	void
1625	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2162	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1626	PPCODE:	2163	PPCODE:
1627	sv_unmagic (scalar, MMAP_MAGIC);	2164	sv_clear_foreign (scalar);
1628	{	2165	{
1629	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2166	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1630	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2167	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1631	if (addr == (void *)-1)	2168	if (addr == (void *)-1)
1632	XSRETURN_NO;	2169	XSRETURN_NO;
1633		2170
1634	sv_force_normal (scalar);	2171	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1635
1636	/* we store the length in mg_obj, as namlen is I32 :/ */
1637	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1638	->mg_obj = (SV *)length;
1639
1640	SvUPGRADE (scalar, SVt_PV); /* nop... */
1641		2172
1642	if (!(prot & PROT_WRITE))	2173	if (!(prot & PROT_WRITE))
1643	SvREADONLY_on (scalar);	2174	SvREADONLY_on (scalar);
1644		2175
1645	if (SvLEN (scalar))
1646	Safefree (SvPVX (scalar));
1647
1648	SvPVX (scalar) = (char *)addr;
1649	SvCUR_set (scalar, length);
1650	SvLEN_set (scalar, 0);
1651	SvPOK_only (scalar);
1652
1653	XSRETURN_YES;	2176	XSRETURN_YES;
1654	}	2177	}
1655		2178
1656	void	2179	void
1657	munmap (SV *scalar)	2180	munmap (SV *scalar)
1658	CODE:	2181	CODE:
1659	sv_unmagic (scalar, MMAP_MAGIC);	2182	sv_clear_foreign (scalar);
		2183
		2184	SV *
		2185	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2186	CODE:
		2187	{
		2188	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2189	void *new;
		2190
		2191	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2192	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2193
		2194	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2195
		2196	RETVAL = &PL_sv_no;
		2197
		2198	if (new != (void *)-1)
		2199	{
		2200	RETVAL = new == (void *)mg->mg_ptr
		2201	? newSVpvn ("0 but true", 10)
		2202	: &PL_sv_yes;
		2203
		2204	mg->mg_ptr = (char *)new;
		2205	mg->mg_obj = (SV *)new_length;
		2206
		2207	SvPVX (scalar) = mg->mg_ptr;
		2208	SvCUR_set (scalar, new_length);
		2209	}
		2210	}
		2211	OUTPUT:
		2212	RETVAL
1660		2213
1661	int	2214	int
1662	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2215	madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1663	ALIAS:	2216	ALIAS:
1664	mprotect = 1	2217	mprotect = 1
1665	CODE:	2218	CODE:
1666	{	2219	{
1667	STRLEN svlen;	2220	STRLEN svlen;
1668	void *addr = SvPVbyte (scalar, svlen);	2221	void *addr = SvPVbyte (scalar, svlen);
1669	size_t len = SvUV (length);	2222	STRLEN len = SvUV (length);
1670		2223
1671	if (offset < 0)	2224	if (offset < 0)
1672	offset += svlen;	2225	offset += svlen;
1673		2226
1674	if (offset < 0 || offset > svlen)	2227	if (offset < 0 || offset > svlen)
…		…
1688	}	2241	}
1689	OUTPUT:	2242	OUTPUT:
1690	RETVAL	2243	RETVAL
1691		2244
1692	int	2245	int
1693	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2246	munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
1694	CODE:	2247	CODE:
1695	{	2248	{
1696	STRLEN svlen;	2249	STRLEN svlen;
1697	void *addr = SvPVbyte (scalar, svlen);	2250	void *addr = SvPVbyte (scalar, svlen);
1698	size_t len = SvUV (length);	2251	size_t len = SvUV (length);
1699		2252
1700	if (offset < 0)	2253	if (offset < 0)
1701	offset += svlen;	2254	offset += svlen;
1702		2255
…		…
1709	addr = (void *)(((intptr_t)addr) + offset);	2262	addr = (void *)(((intptr_t)addr) + offset);
1710	eio_page_align (&addr, &len);	2263	eio_page_align (&addr, &len);
1711	#if _POSIX_MEMLOCK_RANGE	2264	#if _POSIX_MEMLOCK_RANGE
1712	RETVAL = munlock (addr, len);	2265	RETVAL = munlock (addr, len);
1713	#else	2266	#else
1714	RETVAL = ((errno = ENOSYS), -1);	2267	RETVAL = EIO_ENOSYS ();
1715	#endif	2268	#endif
1716	}	2269	}
1717	OUTPUT:	2270	OUTPUT:
		2271	RETVAL
		2272
		2273	int
		2274	mlockall (int flags)
		2275	PROTOTYPE: $;
		2276	CODE:
		2277	RETVAL = eio_mlockall_sync (flags);
		2278	OUTPUT:
1718	RETVAL	2279	RETVAL
1719		2280
1720	int	2281	int
1721	munlockall ()	2282	munlockall ()
1722	CODE:	2283	CODE:
1723	#if _POSIX_MEMLOCK	2284	#if _POSIX_MEMLOCK
1724	munlockall ();	2285	munlockall ();
1725	#else	2286	#else
1726	RETVAL = -1;	2287	RETVAL = EIO_ENOSYS ();
1727	errno = ENOSYS;
1728	#endif	2288	#endif
1729	OUTPUT:	2289	OUTPUT:
1730	RETVAL	2290	RETVAL
		2291
		2292	int
		2293	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2294	CODE:
		2295	{
		2296	#if HAVE_LINUX_SPLICE
		2297	loff_t off_in_, off_out_;
		2298	RETVAL = splice (
		2299	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2300	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2301	length, flags
		2302	);
		2303	#else
		2304	RETVAL = EIO_ENOSYS ();
		2305	#endif
		2306	}
		2307	OUTPUT:
		2308	RETVAL
		2309
		2310	int
		2311	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2312	CODE:
		2313	#if HAVE_LINUX_SPLICE
		2314	RETVAL = tee (rfh, wfh, length, flags);
		2315	#else
		2316	RETVAL = EIO_ENOSYS ();
		2317	#endif
		2318	OUTPUT:
		2319	RETVAL
		2320
		2321	int
		2322	pipesize (aio_rfd rfh, int new_size = -1)
		2323	PROTOTYPE: $;$
		2324	CODE:
		2325	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2326	if (new_size >= 0)
		2327	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2328	else
		2329	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2330	#else
		2331	errno = ENOSYS;
		2332	RETVAL = -1;
		2333	#endif
		2334	OUTPUT:
		2335	RETVAL
		2336
		2337	void
		2338	pipe2 (int flags = 0)
		2339	PROTOTYPE: ;$
		2340	PPCODE:
		2341	{
		2342	int fd[2];
		2343	int res;
		2344
		2345	if (flags)
		2346	#if HAVE_PIPE2
		2347	res = pipe2 (fd, flags);
		2348	#else
		2349	res = (errno = ENOSYS, -1);
		2350	#endif
		2351	else
		2352	res = pipe (fd);
		2353
		2354	if (!res)
		2355	{
		2356	EXTEND (SP, 2);
		2357	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2358	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2359	}
		2360	}
		2361
		2362	void
		2363	eventfd (unsigned int initval = 0, int flags = 0)
		2364	PPCODE:
		2365	{
		2366	int fd;
		2367	#if HAVE_EVENTFD
		2368	fd = eventfd (initval, flags);
		2369	#else
		2370	fd = (errno = ENOSYS, -1);
		2371	#endif
		2372
		2373	XPUSHs (newmortalFH (fd, O_RDWR));
		2374	}
		2375
		2376	void
		2377	timerfd_create (int clockid, int flags = 0)
		2378	PPCODE:
		2379	{
		2380	int fd;
		2381	#if HAVE_TIMERFD
		2382	fd = timerfd_create (clockid, flags);
		2383	#else
		2384	fd = (errno = ENOSYS, -1);
		2385	#endif
		2386
		2387	XPUSHs (newmortalFH (fd, O_RDWR));
		2388	}
		2389
		2390	void
		2391	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2392	PPCODE:
		2393	{
		2394	int fd = s_fileno_croak (fh, 0);
		2395	#if HAVE_TIMERFD
		2396	int res;
		2397	struct itimerspec its, ots;
		2398
		2399	ts_set (&its.it_interval, interval);
		2400	ts_set (&its.it_value , value);
		2401	res = timerfd_settime (fd, flags, &its, &ots);
		2402
		2403	if (!res)
		2404	{
		2405	EXTEND (SP, 2);
		2406	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2407	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2408	}
		2409	#else
		2410	errno = ENOSYS;
		2411	#endif
		2412	}
		2413
		2414	void
		2415	timerfd_gettime (SV *fh)
		2416	PPCODE:
		2417	{
		2418	int fd = s_fileno_croak (fh, 0);
		2419	#if HAVE_TIMERFD
		2420	int res;
		2421	struct itimerspec ots;
		2422	res = timerfd_gettime (fd, &ots);
		2423
		2424	if (!res)
		2425	{
		2426	EXTEND (SP, 2);
		2427	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2428	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2429	}
		2430	#else
		2431	errno = ENOSYS;
		2432	#endif
		2433	}
		2434
		2435	UV
		2436	get_fdlimit ()
		2437	CODE:
		2438	#if HAVE_RLIMITS
		2439	struct rlimit rl;
		2440	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2441	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2442	#endif
		2443	XSRETURN_UNDEF;
		2444	OUTPUT:
		2445	RETVAL
		2446
		2447	void
		2448	min_fdlimit (UV limit = 0x7fffffffU)
		2449	CODE:
		2450	{
		2451	#if HAVE_RLIMITS
		2452	struct rlimit rl;
		2453	rlim_t orig_rlim_max;
		2454	UV bit;
		2455
		2456	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2457	goto fail;
		2458
		2459	if (rl.rlim_cur == RLIM_INFINITY)
		2460	XSRETURN_YES;
		2461
		2462	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2463
		2464	if (rl.rlim_cur < limit)
		2465	{
		2466	rl.rlim_cur = limit;
		2467
		2468	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2469	rl.rlim_max = rl.rlim_cur;
		2470	}
		2471
		2472	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2473	XSRETURN_YES;
		2474
		2475	if (errno == EPERM)
		2476	{
		2477	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2478	/* our limit overflows a system-wide limit */
		2479	/* try an adaptive algorithm, but do not lower the hardlimit */
		2480	rl.rlim_max = 0;
		2481	for (bit = 0x40000000U; bit; bit >>= 1)
		2482	{
		2483	rl.rlim_max |= bit;
		2484	rl.rlim_cur = rl.rlim_max;
		2485
		2486	/* nevr decrease the hard limit */
		2487	if (rl.rlim_max < orig_rlim_max)
		2488	break;
		2489
		2490	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2491	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2492	}
		2493
		2494	/* now, raise the soft limit to the max permitted */
		2495	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2496	{
		2497	rl.rlim_cur = rl.rlim_max;
		2498	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2499	errno = EPERM;
		2500	}
		2501	}
		2502	#endif
		2503	fail:
		2504	XSRETURN_UNDEF;
		2505	}
1731		2506
1732	void _on_next_submit (SV *cb)	2507	void _on_next_submit (SV *cb)
1733	CODE:	2508	CODE:
1734	SvREFCNT_dec (on_next_submit);	2509	SvREFCNT_dec (on_next_submit);
1735	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2510	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1736		2511
1737	PROTOTYPES: DISABLE	2512	PROTOTYPES: DISABLE
1738		2513
1739	MODULE = IO::AIO PACKAGE = IO::AIO::WD	2514	MODULE = IO::AIO PACKAGE = IO::AIO::WD
1740		2515
		2516	BOOT:
		2517	{
		2518	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2519	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2520	}
		2521
1741	void	2522	void
1742	DESTROY (SV *self)	2523	DESTROY (SV *self)
1743	CODE:	2524	CODE:
1744	{	2525	{
1745	aio_wd wd = SvAIO_WD (self);	2526	aio_wd wd = SvAIO_WD (self);
1746	#if HAVE_AT	2527	#if HAVE_AT
		2528	{
1747	SV *callback = &PL_sv_undef;	2529	SV *callback = &PL_sv_undef;
1748	dREQ; /* clobbers next_pri :/ */	2530	dREQ; /* clobbers next_pri :/ */
		2531	next_pri = req->pri; /* restore next_pri */
		2532	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1749	req->type = EIO_WD_CLOSE;	2533	req->type = EIO_WD_CLOSE;
1750	req->wd = wd;	2534	req->wd = wd;
1751	REQ_SEND;	2535	REQ_SEND;
		2536	}
1752	#else	2537	#else
1753	eio_wd_close_sync (wd);	2538	eio_wd_close_sync (wd);
1754	#endif	2539	#endif
1755	}	2540	}
1756		2541
…		…
1760	cancel (aio_req_ornot req)	2545	cancel (aio_req_ornot req)
1761	CODE:	2546	CODE:
1762	eio_cancel (req);	2547	eio_cancel (req);
1763		2548
1764	void	2549	void
1765	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2550	cb (aio_req_ornot req, SV *callback = NO_INIT)
1766	PPCODE:	2551	PPCODE:
1767	{	2552	{
1768	if (GIMME_V != G_VOID)	2553	if (GIMME_V != G_VOID)
1769	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2554	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1770		2555
1771	if (items > 1)	2556	if (items > 1)
1772	{	2557	{
1773	SV *cb_cv =get_cb (callback);	2558	SV *cb_cv = get_cb (callback);
1774		2559
1775	SvREFCNT_dec (req->callback);	2560	SvREFCNT_dec (req->callback);
1776	req->callback = SvREFCNT_inc (cb_cv);	2561	req->callback = SvREFCNT_inc (cb_cv);
1777	}	2562	}
1778	}	2563	}
…		…
1835	limit (aio_req grp, int limit)	2620	limit (aio_req grp, int limit)
1836	CODE:	2621	CODE:
1837	eio_grp_limit (grp, limit);	2622	eio_grp_limit (grp, limit);
1838		2623
1839	void	2624	void
1840	feed (aio_req grp, SV *callback=&PL_sv_undef)	2625	feed (aio_req grp, SV *callback = &PL_sv_undef)
1841	CODE:	2626	CODE:
1842	{	2627	{
1843	SvREFCNT_dec (grp->sv2);	2628	SvREFCNT_dec (grp->sv2);
1844	grp->sv2 = newSVsv (callback);	2629	grp->sv2 = newSVsv (callback);
1845	grp->feed = aio_grp_feed;	2630	grp->feed = aio_grp_feed;

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