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Comparing IO-AIO/AIO.xs (file contents):
Revision 1.195 by root, Mon Sep 26 20:19:08 2011 UTC vs.
Revision 1.268 by root, Thu Nov 29 19:49:48 2018 UTC

…		…
4		4
5	#include "EXTERN.h"	5	#include "EXTERN.h"
6	#include "perl.h"	6	#include "perl.h"
7	#include "XSUB.h"	7	#include "XSUB.h"
8		8
9	#include "schmorp.h"	9	#if !defined mg_findext
		10	# define mg_findext(sv,type,vtbl) mg_find (sv, type)
		11	#endif
10		12
11	#include <stddef.h>	13	#include <stddef.h>
12	#include <stdlib.h>	14	#include <stdlib.h>
13	#include <errno.h>	15	#include <errno.h>
14	#include <sys/types.h>	16	#include <sys/types.h>
		17	#include <sys/socket.h>
15	#include <sys/stat.h>	18	#include <sys/stat.h>
16	#include <limits.h>	19	#include <limits.h>
17	#include <fcntl.h>	20	#include <fcntl.h>
18	#include <sched.h>	21	#include <sched.h>
19		22
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	23	/* the incompetent fool that created musl keeps __linux__, refuses
21	# include <sys/mman.h>	24	* to implement any linux standard apis, and also has no way to test
		25	* for his broken iplementation. don't complain to me if this fails
		26	* for you.
		27	*/
		28	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		29	# include <linux/fs.h>
		30	# ifdef FS_IOC_FIEMAP
		31	# include <linux/types.h>
		32	# include <linux/fiemap.h>
		33	# define HAVE_FIEMAP 1
		34	# endif
22	#endif	35	#endif
23		36
24	/* perl namespace pollution */	37	/* perl namespace pollution */
25	#undef VERSION	38	#undef VERSION
26		39
…		…
61	#undef fchmod	74	#undef fchmod
62	#undef dup	75	#undef dup
63	#undef dup2	76	#undef dup2
64	#undef abort	77	#undef abort
65	#undef pipe	78	#undef pipe
		79	#undef utime
		80
		81	#define EIO_STRUCT_STAT struct _stati64
		82	#define EIO_STRUCT_STATI64
66		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
…		…
97		103
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	/*****************************************************************************/
		108
		109	#include "config.h"
		110
		111	#if HAVE_SYS_MKDEV_H
		112	# include <sys/mkdev.h>
		113	#elif HAVE_SYS_SYSMACROS_H
		114	# include <sys/sysmacros.h>
		115	#endif
		116
		117	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		118	# include <sys/mman.h>
		119	#endif
		120
		121	#if HAVE_ST_XTIMENSEC
		122	# define ATIMENSEC PL_statcache.st_atimensec
		123	# define MTIMENSEC PL_statcache.st_mtimensec
		124	# define CTIMENSEC PL_statcache.st_ctimensec
		125	#elif HAVE_ST_XTIMESPEC
		126	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		127	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		128	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		129	#else
		130	# define ATIMENSEC 0
		131	# define MTIMENSEC 0
		132	# define CTIMENSEC 0
		133	#endif
		134
		135	#if HAVE_ST_BIRTHTIMENSEC
		136	# define BTIMESEC PL_statcache.st_birthtime
		137	# define BTIMENSEC PL_statcache.st_birthtimensec
		138	#elif HAVE_ST_BIRTHTIMESPEC
		139	# define BTIMESEC PL_statcache.st_birthtim.tv_sec
		140	# define BTIMENSEC PL_statcache.st_birthtim.tv_nsec
		141	#else
		142	# define BTIMESEC 0
		143	# define BTIMENSEC 0
		144	#endif
		145
		146	#if HAVE_ST_GEN
		147	# define ST_GEN PL_statcache.st_gen
		148	#else
		149	# define ST_GEN 0
		150	#endif
		151
		152	#include "schmorp.h"
		153
		154	#if HAVE_EVENTFD
		155	# include <sys/eventfd.h>
		156	#endif
		157
		158	#if HAVE_TIMERFD
		159	# include <sys/timerfd.h>
		160	#endif
		161
		162	#if HAVE_RLIMITS
		163	#include <sys/time.h>
		164	#include <sys/resource.h>
		165	#endif
102		166
103	typedef SV SV8; /* byte-sv, used for argument-checking */	167	typedef SV SV8; /* byte-sv, used for argument-checking */
104	typedef int aio_rfd; /* read file desriptor */	168	typedef int aio_rfd; /* read file desriptor */
105	typedef int aio_wfd; /* write file descriptor */	169	typedef int aio_wfd; /* write file descriptor */
106		170
…		…
113	STRLEN stroffset; \	177	STRLEN stroffset; \
114	SV *self;	178	SV *self;
115		179
116	#define EIO_NO_WRAPPERS 1	180	#define EIO_NO_WRAPPERS 1
117		181
118	#include "libeio/config.h"
119	#include "libeio/eio.h"	182	#include "libeio/eio.h"
120		183
121	static int req_invoke (eio_req *req);	184	static int req_invoke (eio_req *req);
122	#define EIO_FINISH(req) req_invoke (req)	185	#define EIO_FINISH(req) req_invoke (req)
123	static void req_destroy (eio_req *grp);	186	static void req_destroy (eio_req *grp);
124	#define EIO_DESTROY(req) req_destroy (req)	187	#define EIO_DESTROY(req) req_destroy (req)
125		188
126	#include "libeio/eio.c"	189	#include "libeio/eio.c"
127		190
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	191	#if !HAVE_POSIX_FADVISE
194	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	192	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
195	#endif	193	#endif
196		194
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	195	#if !HAVE_POSIX_MADVISE
214	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	196	# 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	197	#endif
291		198
292	#ifndef MAP_ANONYMOUS	199	#ifndef MAP_ANONYMOUS
293	# ifdef MAP_ANON	200	# ifdef MAP_ANON
294	# define MAP_ANONYMOUS MAP_ANON	201	# define MAP_ANONYMOUS MAP_ANON
295	# else	202	# else
296	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	203	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
297	# endif	204	# endif
298	#endif	205	#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		206
315	#ifndef makedev	207	#ifndef makedev
316	# define makedev(maj,min) (((maj) << 8) | (min))	208	# define makedev(maj,min) (((maj) << 8) | (min))
317	#endif	209	#endif
318	#ifndef major	210	#ifndef major
…		…
320	#endif	212	#endif
321	#ifndef minor	213	#ifndef minor
322	# define minor(dev) ((dev) & 0xff)	214	# define minor(dev) ((dev) & 0xff)
323	#endif	215	#endif
324		216
		217	/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
		218	#ifdef __sun
325	#ifndef PAGESIZE	219	# undef PAGESIZE
		220	#endif
		221
		222	#if PAGESIZE <= 0
326	# define PAGESIZE sysconf (_SC_PAGESIZE)	223	# define PAGESIZE sysconf (_SC_PAGESIZE)
327	#endif	224	#endif
		225
		226	/*****************************************************************************/
		227
		228	#if !_POSIX_MAPPED_FILES
		229	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		230	# define munmap(addr,length) EIO_ENOSYS ()
		231	#endif
		232
		233	#if !_POSIX_MEMORY_PROTECTION
		234	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		235	#endif
		236
		237	#if !MREMAP_MAYMOVE
		238	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		239	#endif
		240
		241	#define FOREIGN_MAGIC PERL_MAGIC_ext
		242
		243	static int ecb_cold
		244	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		245	{
		246	int old_errno = errno;
		247	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		248	errno = old_errno;
		249
		250	mg->mg_obj = 0; /* just in case */
		251
		252	SvREADONLY_off (sv);
		253
		254	if (SvPVX (sv) != mg->mg_ptr)
		255	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		256
		257	SvCUR_set (sv, 0);
		258	SvPVX (sv) = 0;
		259	SvOK_off (sv);
		260
		261	return 0;
		262	}
		263
		264	static MGVTBL mmap_vtbl = {
		265	0, 0, 0, 0, mmap_free
		266	};
		267
		268	static int ecb_cold
		269	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		270	{
		271	free (mg->mg_ptr);
		272	mg->mg_obj = 0; /* just in case */
		273
		274	SvREADONLY_off (sv);
		275
		276	if (SvPVX (sv) != mg->mg_ptr)
		277	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		278
		279	SvCUR_set (sv, 0);
		280	SvPVX (sv) = 0;
		281	SvOK_off (sv);
		282
		283	return 0;
		284	}
		285
		286	static MGVTBL sysfree_vtbl = {
		287	0, 0, 0, 0, sysfree_free
		288	};
		289
		290	/*****************************************************************************/
		291
		292	/* helper: set scalar to foreign ptr with custom free */
		293	static void
		294	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		295	{
		296	sv_force_normal (sv);
		297
		298	/* we store the length in mg_obj, as namlen is I32 :/ */
		299	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		300	->mg_obj = (SV *)length;
		301
		302	SvUPGRADE (sv, SVt_PV); /* nop... */
		303
		304	if (SvLEN (sv))
		305	Safefree (SvPVX (sv));
		306
		307	SvPVX (sv) = (char *)addr;
		308	SvCUR_set (sv, length);
		309	SvLEN_set (sv, 0);
		310	SvPOK_only (sv);
		311	}
		312
		313	static void
		314	sv_clear_foreign (SV *sv)
		315	{
		316	/* todo: iterate over magic and only free ours, but of course */
		317	/* the perl5porters will call that (correct) behaviour buggy */
		318	sv_unmagic (sv, FOREIGN_MAGIC);
		319	}
		320
		321	/*****************************************************************************/
		322
		323	/* defines all sorts of constants to 0 unless they are already defined */
		324	/* also provides const_iv_ and const_niv_ macros for them */
		325	#include "def0.h"
		326
		327	/*****************************************************************************/
		328
		329	static void
		330	fiemap (eio_req *req)
		331	{
		332	req->result = -1;
		333
		334	#if HAVE_FIEMAP
		335	/* assume some c99 */
		336	struct fiemap *fiemap = 0;
		337	size_t end_offset;
		338	int count = req->int3;
		339
		340	req->flags |= EIO_FLAG_PTR1_FREE;
		341
		342	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		343	/* increase in 3.5kb steps */
		344	if (count < 0)
		345	count = 8;
		346
		347	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		348	errno = ENOMEM;
		349	if (!fiemap)
		350	return;
		351
		352	req->ptr1 = fiemap;
		353
		354	fiemap->fm_start = req->offs;
		355	fiemap->fm_length = req->size;
		356	fiemap->fm_flags = req->int2;
		357	fiemap->fm_extent_count = count;
		358
		359	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		360	return;
		361
		362	if (req->int3 >= 0 /* not autosizing */
		363	|| !fiemap->fm_mapped_extents /* no more extents */
		364	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		365	goto done;
		366
		367	/* else we have to loop -
		368	* it would be tempting (actually I tried that first) to just query the
		369	* number of extents needed, but linux often feels like not returning all
		370	* extents, without telling us it left any out. this complicates
		371	* this quite a bit.
		372	*/
		373
		374	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		375
		376	for (;;)
		377	{
		378	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		379	char scratch[3072];
		380	struct fiemap *incmap = (struct fiemap *)scratch;
		381
		382	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		383	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		384	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		385	incmap->fm_flags = fiemap->fm_flags;
		386	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		387
		388	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		389	return;
		390
		391	if (!incmap->fm_mapped_extents)
		392	goto done;
		393
		394	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		395	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		396	errno = ENOMEM;
		397	if (!fiemap)
		398	return;
		399
		400	req->ptr1 = fiemap;
		401
		402	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		403	{
		404	struct fiemap_extent *e = incmap->fm_extents + count;
		405
		406	if (e->fe_logical + e->fe_length >= end_offset)
		407	goto done;
		408
		409	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		410
		411	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		412	goto done;
		413
		414	}
		415	}
		416
		417	done:
		418	req->result = 0;
		419
		420	#else
		421	errno = ENOSYS;
		422	#endif
		423	}
		424
		425	/*****************************************************************************/
		426
		427	static int close_fd; /* dummy fd to close fds via dup2 */
328		428
329	enum {	429	enum {
330	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	430	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
331	};	431	};
332		432
333	typedef eio_req *aio_req;	433	typedef eio_req *aio_req;
334	typedef eio_req *aio_req_ornot;	434	typedef eio_req *aio_req_ornot;
335	typedef eio_wd *aio_wd;	435	typedef eio_wd aio_wd;
336		436
337	static SV *on_next_submit;	437	static SV *on_next_submit;
338	static int next_pri = EIO_PRI_DEFAULT;	438	static int next_pri = EIO_PRI_DEFAULT;
339	static int max_outstanding;	439	static int max_outstanding;
340		440
341	static s_epipe respipe;	441	static s_epipe respipe;
342		442
343	static void req_destroy (aio_req req);	443	static void req_destroy (aio_req req);
344	static void req_cancel (aio_req req);	444	static void req_cancel (aio_req req);
345		445
346	static void want_poll (void)	446	static void
		447	want_poll (void)
347	{	448	{
348	/* write a dummy byte to the pipe so fh becomes ready */	449	/* write a dummy byte to the pipe so fh becomes ready */
349	s_epipe_signal (&respipe);	450	s_epipe_signal (&respipe);
350	}	451	}
351		452
352	static void done_poll (void)	453	static void
		454	done_poll (void)
353	{	455	{
354	/* read any signals sent by the worker threads */	456	/* read any signals sent by the worker threads */
355	s_epipe_drain (&respipe);	457	s_epipe_drain (&respipe);
356	}	458	}
357		459
358	/* must be called at most once */	460	/* must be called at most once */
		461	static SV *
359	static SV *req_sv (aio_req req, HV *stash)	462	req_sv (aio_req req, HV *stash)
360	{	463	{
361	if (!req->self)	464	if (!req->self)
362	{	465	{
363	req->self = (SV *)newHV ();	466	req->self = (SV *)newHV ();
364	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	467	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
365	}	468	}
366		469
367	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	470	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
368	}	471	}
369		472
370	static aio_req SvAIO_REQ (SV *sv)	473	static SV *
		474	newSVaio_wd (aio_wd wd)
		475	{
		476	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		477	}
		478
		479	static aio_req
		480	SvAIO_REQ (SV *sv)
371	{	481	{
372	MAGIC *mg;	482	MAGIC *mg;
373		483
374	if (!SvROK (sv)	484	if (!SvROK (sv)
		485	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
375	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	486	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
376	&& SvSTASH (SvRV (sv)) != aio_req_stash	487	&& SvSTASH (SvRV (sv)) != aio_req_stash
377	&& !sv_derived_from (sv, "IO::AIO::REQ")))	488	&& !sv_derived_from (sv, "IO::AIO::REQ")))
378	croak ("object of class IO::AIO::REQ expected");	489	croak ("object of class IO::AIO::REQ expected");
379		490
380	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	491	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
381		492
382	return mg ? (aio_req)mg->mg_ptr : 0;	493	return mg ? (aio_req)mg->mg_ptr : 0;
383	}	494	}
384		495
385	static aio_wd SvAIO_WD (SV *sv)	496	static aio_wd
		497	SvAIO_WD (SV *sv)
386	{	498	{
387	if (!SvROK (sv)	499	if (!SvROK (sv)
		500	|| SvTYPE (SvRV (sv)) != SVt_PVMG
388	|| SvSTASH (SvRV (sv)) != aio_wd_stash	501	|| 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");	502	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
391		503
392	return (aio_wd)(long)SvIVX (SvRV (sv));	504	return (aio_wd)(long)SvIVX (SvRV (sv));
393	}	505	}
394		506
		507	static SV *
		508	newmortalFH (int fd, int flags)
		509	{
		510	if (fd < 0)
		511	return &PL_sv_undef;
		512
		513	GV *gv = (GV *)sv_newmortal ();
		514	char sym[64];
		515	int symlen;
		516
		517	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		518	gv_init (gv, aio_stash, sym, symlen, 0);
		519
		520	symlen = snprintf (
		521	sym,
		522	sizeof (sym),
		523	"%s&=%d",
		524	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		525	fd
		526	);
		527
		528	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		529	? (SV *)gv : &PL_sv_undef;
		530	}
		531
		532	static void
395	static void aio_grp_feed (aio_req grp)	533	aio_grp_feed (aio_req grp)
396	{	534	{
397	if (grp->sv2 && SvOK (grp->sv2))	535	if (grp->sv2 && SvOK (grp->sv2))
398	{	536	{
399	dSP;	537	dSP;
400		538
…		…
408	FREETMPS;	546	FREETMPS;
409	LEAVE;	547	LEAVE;
410	}	548	}
411	}	549	}
412		550
		551	static void
413	static void req_submit (eio_req *req)	552	req_submit (eio_req *req)
414	{	553	{
415	eio_submit (req);	554	eio_submit (req);
416		555
417	if (expect_false (on_next_submit))	556	if (expect_false (on_next_submit))
418	{	557	{
…		…
425	PUTBACK;	564	PUTBACK;
426	call_sv (cb, G_DISCARD | G_EVAL);	565	call_sv (cb, G_DISCARD | G_EVAL);
427	}	566	}
428	}	567	}
429		568
		569	static int
430	static int req_invoke (eio_req *req)	570	req_invoke (eio_req *req)
431	{	571	{
432	if (req->flags & FLAG_SV2_RO_OFF)	572	if (req->flags & FLAG_SV2_RO_OFF)
433	SvREADONLY_off (req->sv2);	573	SvREADONLY_off (req->sv2);
434		574
435	if (!EIO_CANCELLED (req) && req->callback)	575	if (!EIO_CANCELLED (req) && req->callback)
…		…
457	}	597	}
458		598
459	switch (req->type)	599	switch (req->type)
460	{	600	{
461	case EIO_WD_OPEN:	601	case EIO_WD_OPEN:
462	PUSHs (sv_2mortal (sv_bless (newRV_noinc (newSViv (((long)req->wd))), aio_wd_stash)));	602	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
463	break;	603	break;
464		604
465	case EIO_READDIR:	605	case EIO_READDIR:
466	{	606	{
467	SV *rv = &PL_sv_undef;	607	SV *rv = &PL_sv_undef;
…		…
522	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	662	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
523	}	663	}
524	break;	664	break;
525		665
526	case EIO_OPEN:	666	case EIO_OPEN:
527	{	667	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;	668	break;
556		669
557	case EIO_STATVFS:	670	case EIO_STATVFS:
558	case EIO_FSTATVFS:	671	case EIO_FSTATVFS:
559	{	672	{
…		…
562	#ifndef _WIN32	675	#ifndef _WIN32
563	if (req->result >= 0)	676	if (req->result >= 0)
564	{	677	{
565	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	678	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
566	HV *hv = newHV ();	679	HV *hv = newHV ();
		680	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		681	* chooses to make it a struct.
		682	*/
		683	unsigned long fsid = 0;
		684	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
567		685
568	rv = sv_2mortal (newRV_noinc ((SV *)hv));	686	rv = sv_2mortal (newRV_noinc ((SV *)hv));
569		687
570	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	688	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);	689	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);	691	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);	692	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);	693	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);	694	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);	695	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);	696	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
579	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	697	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);	698	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
581	}	699	}
582	#endif	700	#endif
583		701
…		…
611	break;	729	break;
612		730
613	case EIO_STAT:	731	case EIO_STAT:
614	case EIO_LSTAT:	732	case EIO_LSTAT:
615	case EIO_FSTAT:	733	case EIO_FSTAT:
616	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	734	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		735
617	PL_laststatval = req->result;	736	if (!(PL_laststatval = req->result))
618	/* if compilation fails here then perl's Stat_t is not struct _stati64 */	737	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
619	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	738	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		739
620	PUSHs (sv_result);	740	PUSHs (sv_result);
		741	break;
		742
		743	case EIO_SEEK:
		744	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
621	break;	745	break;
622		746
623	case EIO_READ:	747	case EIO_READ:
624	{	748	{
625	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	749	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
628	SvSETMAGIC (req->sv2);	752	SvSETMAGIC (req->sv2);
629	PUSHs (sv_result);	753	PUSHs (sv_result);
630	}	754	}
631	break;	755	break;
632		756
		757	case EIO_SLURP:
		758	{
		759	if (req->result >= 0)
		760	{
		761	/* if length was originally not known, we steal the malloc'ed memory */
		762	if (req->flags & EIO_FLAG_PTR2_FREE)
		763	{
		764	req->flags &= ~EIO_FLAG_PTR2_FREE;
		765	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		766	}
		767	else
		768	{
		769	SvCUR_set (req->sv2, req->result);
		770	*SvEND (req->sv2) = 0;
		771	SvPOK_only (req->sv2);
		772	}
		773
		774	SvSETMAGIC (req->sv2);
		775	}
		776
		777	PUSHs (sv_result);
		778	}
		779	break;
		780
		781	case EIO_CUSTOM:
		782	if (req->feed == fiemap)
		783	{
		784	#if HAVE_FIEMAP
		785	if (!req->result)
		786	{
		787	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		788
		789	if (fiemap->fm_extent_count)
		790	{
		791	AV *av = newAV ();
		792	int i;
		793
		794	while (fiemap->fm_mapped_extents)
		795	{
		796	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		797	AV *ext_av = newAV ();
		798
		799	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		800	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		801	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		802	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		803
		804	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		805	}
		806
		807	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		808	}
		809	else
		810	{
		811	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		812	PUSHs (sv_result);
		813	}
		814	}
		815	#endif
		816	}
		817	else
		818	PUSHs (sv_result);
		819	break;
		820
633	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	821	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
634	if (req->result > 0)	822	if (req->result > 0)
635	SvIV_set (sv_result, 0);	823	SvIV_set (sv_result, 0);
636	/* FALLTHROUGH */	824	/* FALLTHROUGH */
637		825
…		…
658	}	846	}
659		847
660	return !!SvTRUE (ERRSV);	848	return !!SvTRUE (ERRSV);
661	}	849	}
662		850
		851	static void
663	static void req_destroy (aio_req req)	852	req_destroy (aio_req req)
664	{	853	{
665	if (req->self)	854	if (req->self)
666	{	855	{
667	sv_unmagic (req->self, PERL_MAGIC_ext);	856	sv_unmagic (req->self, PERL_MAGIC_ext);
668	SvREFCNT_dec (req->self);	857	SvREFCNT_dec (req->self);
…		…
672	SvREFCNT_dec (req->sv2);	861	SvREFCNT_dec (req->sv2);
673	SvREFCNT_dec (req->sv3);	862	SvREFCNT_dec (req->sv3);
674	SvREFCNT_dec (req->sv4);	863	SvREFCNT_dec (req->sv4);
675	SvREFCNT_dec (req->callback);	864	SvREFCNT_dec (req->callback);
676		865
677	Safefree (req);	866	free (req);
678	}	867	}
679		868
		869	static void
680	static void req_cancel_subs (aio_req grp)	870	req_cancel_subs (aio_req grp)
681	{	871	{
682	if (grp->type != EIO_GROUP)	872	if (grp->type != EIO_GROUP)
683	return;	873	return;
684		874
685	SvREFCNT_dec (grp->sv2);	875	SvREFCNT_dec (grp->sv2);
686	grp->sv2 = 0;	876	grp->sv2 = 0;
687		877
688	eio_grp_cancel (grp);	878	eio_grp_cancel (grp);
689	}	879	}
690		880
		881	static void ecb_cold
691	static void create_respipe (void)	882	create_respipe (void)
692	{	883	{
693	if (s_epipe_renew (&respipe))	884	if (s_epipe_renew (&respipe))
694	croak ("IO::AIO: unable to initialize result pipe");	885	croak ("IO::AIO: unable to initialize result pipe");
695	}	886	}
696		887
697	static void poll_wait (void)	888	static void
		889	poll_wait (void)
698	{	890	{
699	while (eio_nreqs ())	891	while (eio_nreqs ())
700	{	892	{
701	int size;	893	int size;
702		894
703	X_LOCK (reslock);	895	X_LOCK (EIO_POOL->reslock);
704	size = res_queue.size;	896	size = EIO_POOL->res_queue.size;
705	X_UNLOCK (reslock);	897	X_UNLOCK (EIO_POOL->reslock);
706		898
707	if (size)	899	if (size)
708	return;	900	return;
709		901
710	etp_maybe_start_thread ();	902	etp_maybe_start_thread (EIO_POOL);
711		903
712	s_epipe_wait (&respipe);	904	s_epipe_wait (&respipe);
713	}	905	}
714	}	906	}
715		907
716	static int poll_cb (void)	908	static int
		909	poll_cb (void)
717	{	910	{
718	for (;;)	911	for (;;)
719	{	912	{
720	int res = eio_poll ();	913	int res = eio_poll ();
721		914
…		…
738	croak ("IO::AIO: unable to initialise eio library");	931	croak ("IO::AIO: unable to initialise eio library");
739	}	932	}
740		933
741	/*****************************************************************************/	934	/*****************************************************************************/
742		935
743	#if !_POSIX_MAPPED_FILES	936	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)	937	get_cb (SV *cb_sv)
786	{	938	{
787	SvGETMAGIC (cb_sv);	939	SvGETMAGIC (cb_sv);
788	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	940	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
789	}	941	}
790		942
		943	static aio_req ecb_noinline
		944	dreq (SV *callback)
		945	{
		946	SV *cb_cv;
		947	aio_req req;
		948	int req_pri = next_pri;
		949	next_pri = EIO_PRI_DEFAULT;
		950
		951	cb_cv = get_cb (callback);
		952
		953	req = calloc (sizeof (*req), 1);
		954	if (!req)
		955	croak ("out of memory during eio_req allocation");
		956
		957	req->callback = SvREFCNT_inc (cb_cv);
		958	req->pri = req_pri;
		959
		960	return req;
		961	}
		962
791	#define dREQ \	963	#define dREQ \
792	SV *cb_cv; \	964	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		965
806	#define REQ_SEND \	966	#define REQ_SEND \
807	PUTBACK; \	967	PUTBACK; \
808	req_submit (req); \	968	req_submit (req); \
809	SPAGAIN; \	969	SPAGAIN; \
810	\	970	\
811	if (GIMME_V != G_VOID) \	971	if (GIMME_V != G_VOID) \
812	XPUSHs (req_sv (req, aio_req_stash));	972	XPUSHs (req_sv (req, aio_req_stash));
813		973
814	static void	974	ecb_inline void
815	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)	975	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
816	{	976	{
817	if (SvROK (path))	977	if (expect_false (SvROK (path)))
818	{	978	{
819	AV *av = (AV *)SvRV (path);	979	SV *rv = SvRV (path);
820	SV *wdob;	980	SV *wdob;
821		981
822	if (SvTYPE (av) != SVt_PVAV || AvFILLp (av) != 1)	982	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
823	croak ("IO::AIO: pathname arguments must be specified as strings or [wd, path] arrayrefs");	983	{
824
825	path = AvARRAY (av)[1];	984	path = AvARRAY (rv)[1];
826	wdob = AvARRAY (av)[0];	985	wdob = AvARRAY (rv)[0];
827		986
		987	if (SvOK (wdob))
		988	{
828	*wd = SvAIO_WD (wdob);	989	*wd = SvAIO_WD (wdob);
829	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));	990	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		991	}
		992	else
		993	*wd = EIO_INVALID_WD;
		994	}
		995	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		996	{
		997	*wd = (aio_wd)(long)SvIVX (rv);
		998	*wdsv = SvREFCNT_inc_NN (rv);
		999	*ptr = ".";
		1000	return; /* path set to "." */
		1001	}
		1002	else
		1003	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
830	}	1004	}
831		1005
832	*pathsv = newSVsv (path);	1006	*pathsv = newSVsv (path);
833	*ptr = SvPVbyte_nolen (*pathsv);	1007	*ptr = SvPVbyte_nolen (*pathsv);
834	}	1008	}
835		1009
836	static void	1010	static void ecb_noinline
837	req_set_path1 (aio_req req, SV *path)	1011	req_set_path1 (aio_req req, SV *path)
838	{	1012	{
839	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);	1013	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
840	}	1014	}
841		1015
842	static void	1016	static void ecb_noinline
843	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)	1017	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
844	{	1018	{
845	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;	1019	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
846		1020
847	switch (SvTYPE (rv))	1021	switch (SvTYPE (rv))
…		…
857	default:	1031	default:
858	req->type = type_path;	1032	req->type = type_path;
859	req_set_path1 (req, fh_or_path);	1033	req_set_path1 (req, fh_or_path);
860	break;	1034	break;
861	}	1035	}
862
863	}	1036	}
		1037
		1038	/*****************************************************************************/
		1039
		1040	static void
		1041	ts_set (struct timespec *ts, NV value)
		1042	{
		1043	ts->tv_sec = value;
		1044	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1045	}
		1046
		1047	static NV
		1048	ts_get (const struct timespec *ts)
		1049	{
		1050	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1051	}
		1052
		1053	/*****************************************************************************/
		1054
		1055	XS(boot_IO__AIO) ecb_cold;
864		1056
865	MODULE = IO::AIO PACKAGE = IO::AIO	1057	MODULE = IO::AIO PACKAGE = IO::AIO
866		1058
867	PROTOTYPES: ENABLE	1059	PROTOTYPES: ENABLE
868		1060
…		…
873	IV iv;	1065	IV iv;
874	} *civ, const_iv[] = {	1066	} *civ, const_iv[] = {
875	# define const_niv(name, value) { # name, (IV) value },	1067	# define const_niv(name, value) { # name, (IV) value },
876	# define const_iv(name) { # name, (IV) name },	1068	# define const_iv(name) { # name, (IV) name },
877	# define const_eio(name) { # name, (IV) EIO_ ## name },	1069	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1070
		1071	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1072	/* the first block can be undef if missing */
		1073	const_iv (ENOSYS)
878	const_iv (EXDEV)	1074	const_iv (EXDEV)
879	const_iv (ENOSYS)	1075	const_iv (EBADR)
		1076
		1077	/* for lseek */
		1078	const_iv (SEEK_DATA)
		1079	const_iv (SEEK_HOLE)
		1080
		1081	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1082	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1083	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1084	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1085	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1086	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1087
		1088	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1089	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1090	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1091	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1092	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1093
		1094	/* the second block will be 0 when missing */
		1095	const_iv (O_ACCMODE)
		1096
880	const_iv (O_RDONLY)	1097	const_iv (O_RDONLY)
881	const_iv (O_WRONLY)	1098	const_iv (O_WRONLY)
882	const_iv (O_RDWR)	1099	const_iv (O_RDWR)
883	const_iv (O_CREAT)	1100	const_iv (O_CREAT)
884	const_iv (O_TRUNC)	1101	const_iv (O_TRUNC)
…		…
897	const_iv (O_SEARCH)	1114	const_iv (O_SEARCH)
898	const_iv (O_DIRECTORY)	1115	const_iv (O_DIRECTORY)
899	const_iv (O_DSYNC)	1116	const_iv (O_DSYNC)
900	const_iv (O_RSYNC)	1117	const_iv (O_RSYNC)
901	const_iv (O_SYNC)	1118	const_iv (O_SYNC)
		1119	const_iv (O_PATH)
		1120	const_iv (O_TMPFILE)
902	const_iv (O_TTY_INIT)	1121	const_iv (O_TTY_INIT)
903		1122
904	const_iv (S_IFIFO)	1123	const_iv (S_IFIFO)
905	const_iv (S_IFCHR)	1124	const_iv (S_IFCHR)
906	const_iv (S_IFBLK)	1125	const_iv (S_IFBLK)
…		…
908	const_iv (S_IFREG)	1127	const_iv (S_IFREG)
909	const_iv (S_IFDIR)	1128	const_iv (S_IFDIR)
910	const_iv (S_IFWHT)	1129	const_iv (S_IFWHT)
911	const_iv (S_IFSOCK)	1130	const_iv (S_IFSOCK)
912	const_iv (S_IFMT)	1131	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		1132
927	const_iv (ST_RDONLY)	1133	const_iv (ST_RDONLY)
928	const_iv (ST_NOSUID)	1134	const_iv (ST_NOSUID)
929	const_iv (ST_NODEV)	1135	const_iv (ST_NODEV)
930	const_iv (ST_NOEXEC)	1136	const_iv (ST_NOEXEC)
…		…
940	const_iv (PROT_NONE)	1146	const_iv (PROT_NONE)
941	const_iv (PROT_EXEC)	1147	const_iv (PROT_EXEC)
942	const_iv (PROT_READ)	1148	const_iv (PROT_READ)
943	const_iv (PROT_WRITE)	1149	const_iv (PROT_WRITE)
944		1150
945	/*const_iv (MAP_FIXED)*/
946	const_iv (MAP_PRIVATE)	1151	const_iv (MAP_PRIVATE)
947	const_iv (MAP_SHARED)	1152	const_iv (MAP_SHARED)
		1153	const_iv (MAP_FIXED)
948	const_iv (MAP_ANONYMOUS)	1154	const_iv (MAP_ANONYMOUS)
949		1155
950	/* linuxish */	1156	/* linuxish */
951	const_iv (MAP_HUGETLB)
952	const_iv (MAP_LOCKED)	1157	const_iv (MAP_LOCKED)
953	const_iv (MAP_NORESERVE)	1158	const_iv (MAP_NORESERVE)
954	const_iv (MAP_POPULATE)	1159	const_iv (MAP_POPULATE)
955	const_iv (MAP_NONBLOCK)	1160	const_iv (MAP_NONBLOCK)
		1161	const_iv (MAP_GROWSDOWN)
		1162	const_iv (MAP_32BIT)
		1163	const_iv (MAP_HUGETLB)
		1164	const_iv (MAP_STACK)
		1165
		1166	const_iv (MREMAP_MAYMOVE)
		1167	const_iv (MREMAP_FIXED)
		1168
		1169	const_iv (F_DUPFD_CLOEXEC)
		1170
		1171	const_iv (MSG_CMSG_CLOEXEC)
		1172	const_iv (SOCK_CLOEXEC)
		1173
		1174	const_iv (F_OFD_GETLK)
		1175	const_iv (F_OFD_SETLK)
		1176	const_iv (F_OFD_GETLKW)
		1177
		1178	const_iv (FIFREEZE)
		1179	const_iv (FITHAW)
		1180	const_iv (FITRIM)
		1181	const_iv (FICLONE)
		1182	const_iv (FICLONERANGE)
		1183	const_iv (FIDEDUPERANGE)
		1184
		1185	const_iv (FS_IOC_GETFLAGS)
		1186	const_iv (FS_IOC_SETFLAGS)
		1187	const_iv (FS_IOC_GETVERSION)
		1188	const_iv (FS_IOC_SETVERSION)
		1189	const_iv (FS_IOC_FIEMAP)
		1190	const_iv (FS_IOC_FSGETXATTR)
		1191	const_iv (FS_IOC_FSSETXATTR)
		1192	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1193	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1194	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1195
		1196	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1197
		1198	const_iv (FS_SECRM_FL)
		1199	const_iv (FS_UNRM_FL)
		1200	const_iv (FS_COMPR_FL)
		1201	const_iv (FS_SYNC_FL)
		1202	const_iv (FS_IMMUTABLE_FL)
		1203	const_iv (FS_APPEND_FL)
		1204	const_iv (FS_NODUMP_FL)
		1205	const_iv (FS_NOATIME_FL)
		1206	const_iv (FS_DIRTY_FL)
		1207	const_iv (FS_COMPRBLK_FL)
		1208	const_iv (FS_NOCOMP_FL)
		1209	const_iv (FS_ENCRYPT_FL)
		1210	const_iv (FS_BTREE_FL)
		1211	const_iv (FS_INDEX_FL)
		1212	const_iv (FS_JOURNAL_DATA_FL)
		1213	const_iv (FS_NOTAIL_FL)
		1214	const_iv (FS_DIRSYNC_FL)
		1215	const_iv (FS_TOPDIR_FL)
		1216	const_iv (FS_FL_USER_MODIFIABLE)
		1217
		1218	const_iv (FS_XFLAG_REALTIME)
		1219	const_iv (FS_XFLAG_PREALLOC)
		1220	const_iv (FS_XFLAG_IMMUTABLE)
		1221	const_iv (FS_XFLAG_APPEND)
		1222	const_iv (FS_XFLAG_SYNC)
		1223	const_iv (FS_XFLAG_NOATIME)
		1224	const_iv (FS_XFLAG_NODUMP)
		1225	const_iv (FS_XFLAG_RTINHERIT)
		1226	const_iv (FS_XFLAG_PROJINHERIT)
		1227	const_iv (FS_XFLAG_NOSYMLINKS)
		1228	const_iv (FS_XFLAG_EXTSIZE)
		1229	const_iv (FS_XFLAG_EXTSZINHERIT)
		1230	const_iv (FS_XFLAG_NODEFRAG)
		1231	const_iv (FS_XFLAG_FILESTREAM)
		1232	const_iv (FS_XFLAG_DAX)
		1233	const_iv (FS_XFLAG_HASATTR)
		1234
		1235	const_iv (FIEMAP_FLAG_SYNC)
		1236	const_iv (FIEMAP_FLAG_XATTR)
		1237	const_iv (FIEMAP_FLAGS_COMPAT)
		1238	const_iv (FIEMAP_EXTENT_LAST)
		1239	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1240	const_iv (FIEMAP_EXTENT_DELALLOC)
		1241	const_iv (FIEMAP_EXTENT_ENCODED)
		1242	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1243	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1244	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1245	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1246	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1247	const_iv (FIEMAP_EXTENT_MERGED)
		1248	const_iv (FIEMAP_EXTENT_SHARED)
		1249
		1250	const_iv (SPLICE_F_MOVE)
		1251	const_iv (SPLICE_F_NONBLOCK)
		1252	const_iv (SPLICE_F_MORE)
		1253	const_iv (SPLICE_F_GIFT)
		1254
		1255	const_iv (EFD_CLOEXEC)
		1256	const_iv (EFD_NONBLOCK)
		1257	const_iv (EFD_SEMAPHORE)
		1258
		1259	const_iv (CLOCK_REALTIME)
		1260	const_iv (CLOCK_MONOTONIC)
		1261	const_iv (CLOCK_BOOTTIME)
		1262	const_iv (CLOCK_REALTIME_ALARM)
		1263	const_iv (CLOCK_BOOTTIME_ALARM)
		1264
		1265	const_iv (TFD_NONBLOCK)
		1266	const_iv (TFD_CLOEXEC)
		1267
		1268	const_iv (TFD_TIMER_ABSTIME)
		1269	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1270
		1271	/* these are libeio constants, and are independent of gendef0 */
		1272	const_eio (SEEK_SET)
		1273	const_eio (SEEK_CUR)
		1274	const_eio (SEEK_END)
956		1275
957	const_eio (MCL_FUTURE)	1276	const_eio (MCL_FUTURE)
958	const_eio (MCL_CURRENT)	1277	const_eio (MCL_CURRENT)
		1278	const_eio (MCL_ONFAULT)
959		1279
960	const_eio (MS_ASYNC)	1280	const_eio (MS_ASYNC)
961	const_eio (MS_INVALIDATE)	1281	const_eio (MS_INVALIDATE)
962	const_eio (MS_SYNC)	1282	const_eio (MS_SYNC)
963		1283
…		…
966	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1286	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
967	const_eio (SYNC_FILE_RANGE_WRITE)	1287	const_eio (SYNC_FILE_RANGE_WRITE)
968	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1288	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
969		1289
970	const_eio (FALLOC_FL_KEEP_SIZE)	1290	const_eio (FALLOC_FL_KEEP_SIZE)
		1291	const_eio (FALLOC_FL_PUNCH_HOLE)
		1292	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1293	const_eio (FALLOC_FL_ZERO_RANGE)
		1294	const_eio (FALLOC_FL_INSERT_RANGE)
		1295	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1296
		1297	const_eio (RENAME_NOREPLACE)
		1298	const_eio (RENAME_EXCHANGE)
		1299	const_eio (RENAME_WHITEOUT)
971		1300
972	const_eio (READDIR_DENTS)	1301	const_eio (READDIR_DENTS)
973	const_eio (READDIR_DIRS_FIRST)	1302	const_eio (READDIR_DIRS_FIRST)
974	const_eio (READDIR_STAT_ORDER)	1303	const_eio (READDIR_STAT_ORDER)
975	const_eio (READDIR_FOUND_UNKNOWN)	1304	const_eio (READDIR_FOUND_UNKNOWN)
…		…
993	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1322	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));	1323	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
995		1324
996	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1325	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
997		1326
		1327	/* allocate dummy pipe fd for aio_close */
		1328	{
		1329	int pipefd [2];
		1330
		1331	if (
		1332	#ifdef _WIN32
		1333	_pipe (pipefd, 1, _O_BINARY) < 0
		1334	#else
		1335	pipe (pipefd) < 0
		1336	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1337	#endif
		1338	|| close (pipefd [1]) < 0
		1339	)
		1340	croak ("IO::AIO: unable to create dummy pipe for aio_close");
		1341
		1342	close_fd = pipefd [0];
		1343	}
		1344
998	reinit ();	1345	reinit ();
999	}	1346	}
1000		1347
1001	void	1348	void
1002	reinit ()	1349	reinit ()
…		…
1043	PROTOTYPE: $	1390	PROTOTYPE: $
1044	CODE:	1391	CODE:
1045	max_outstanding = maxreqs;	1392	max_outstanding = maxreqs;
1046		1393
1047	void	1394	void
1048	aio_wd (SV8 *pathname, SV *callback=&PL_sv_undef)	1395	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
1049	PPCODE:	1396	PPCODE:
1050	{	1397	{
1051	dREQ;	1398	dREQ;
1052		1399
1053	req->type = EIO_WD_OPEN;	1400	req->type = EIO_WD_OPEN;
…		…
1055		1402
1056	REQ_SEND;	1403	REQ_SEND;
1057	}	1404	}
1058		1405
1059	void	1406	void
1060	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1407	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
1061	PPCODE:	1408	PPCODE:
1062	{	1409	{
1063	dREQ;	1410	dREQ;
1064		1411
1065	req->type = EIO_OPEN;	1412	req->type = EIO_OPEN;
…		…
1069		1416
1070	REQ_SEND;	1417	REQ_SEND;
1071	}	1418	}
1072		1419
1073	void	1420	void
1074	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1421	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
1075	ALIAS:	1422	ALIAS:
1076	aio_fsync = EIO_FSYNC	1423	aio_fsync = EIO_FSYNC
1077	aio_fdatasync = EIO_FDATASYNC	1424	aio_fdatasync = EIO_FDATASYNC
1078	aio_syncfs = EIO_SYNCFS	1425	aio_syncfs = EIO_SYNCFS
1079	PPCODE:	1426	PPCODE:
1080	{	1427	{
1081	int fd = s_fileno_croak (fh, 0);	1428	int fd = s_fileno_croak (fh, 0);
1082	dREQ;	1429	dREQ;
1083		1430
1084	req->type = ix;	1431	req->type = ix;
1085	req->sv1 = newSVsv (fh);	1432	req->sv1 = newSVsv (fh);
1086	req->int1 = fd;	1433	req->int1 = fd;
1087		1434
1088	REQ_SEND (req);	1435	REQ_SEND;
1089	}	1436	}
1090		1437
1091	void	1438	void
1092	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1439	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1093	PPCODE:	1440	PPCODE:
1094	{	1441	{
1095	int fd = s_fileno_croak (fh, 0);	1442	int fd = s_fileno_croak (fh, 0);
1096	dREQ;	1443	dREQ;
1097		1444
1098	req->type = EIO_SYNC_FILE_RANGE;	1445	req->type = EIO_SYNC_FILE_RANGE;
1099	req->sv1 = newSVsv (fh);	1446	req->sv1 = newSVsv (fh);
1100	req->int1 = fd;	1447	req->int1 = fd;
1101	req->offs = offset;	1448	req->offs = offset;
1102	req->size = nbytes;	1449	req->size = nbytes;
1103	req->int2 = flags;	1450	req->int2 = flags;
1104		1451
1105	REQ_SEND (req);	1452	REQ_SEND;
1106	}	1453	}
1107		1454
1108	void	1455	void
1109	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1456	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1110	PPCODE:	1457	PPCODE:
1111	{	1458	{
1112	int fd = s_fileno_croak (fh, 0);	1459	int fd = s_fileno_croak (fh, 0);
1113	dREQ;	1460	dREQ;
1114		1461
1115	req->type = EIO_FALLOCATE;	1462	req->type = EIO_FALLOCATE;
1116	req->sv1 = newSVsv (fh);	1463	req->sv1 = newSVsv (fh);
1117	req->int1 = fd;	1464	req->int1 = fd;
1118	req->int2 = mode;	1465	req->int2 = mode;
1119	req->offs = offset;	1466	req->offs = offset;
1120	req->size = len;	1467	req->size = len;
1121		1468
1122	REQ_SEND (req);	1469	REQ_SEND;
1123	}	1470	}
1124		1471
1125	void	1472	void
1126	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1473	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1127	PPCODE:	1474	PPCODE:
1128	{	1475	{
1129	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1130	int fd = s_fileno_croak (fh, 0);	1476	int fd = s_fileno_croak (fh, 0);
1131	dREQ;	1477	dREQ;
1132
1133	if (expect_false (close_fd < 0))
1134	{
1135	int pipefd [2];
1136
1137	if (
1138	#ifdef _WIN32
1139	_pipe (pipefd, 1, _O_BINARY) < 0
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	}
1150		1478
1151	req->type = EIO_DUP2;	1479	req->type = EIO_DUP2;
1152	req->int1 = close_fd;	1480	req->int1 = close_fd;
1153	req->sv2 = newSVsv (fh);	1481	req->sv2 = newSVsv (fh);
1154	req->int2 = fd;	1482	req->int2 = fd;
1155		1483
1156	REQ_SEND (req);	1484	REQ_SEND;
1157	}	1485	}
1158		1486
1159	void	1487	void
		1488	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1489	PPCODE:
		1490	{
		1491	int fd = s_fileno_croak (fh, 0);
		1492	dREQ;
		1493
		1494	req->type = EIO_SEEK;
		1495	req->sv1 = newSVsv (fh);
		1496	req->int1 = fd;
		1497	req->offs = SvVAL64 (offset);
		1498	req->int2 = whence;
		1499
		1500	REQ_SEND;
		1501	}
		1502
		1503	void
1160	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1504	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1161	ALIAS:	1505	ALIAS:
1162	aio_read = EIO_READ	1506	aio_read = EIO_READ
1163	aio_write = EIO_WRITE	1507	aio_write = EIO_WRITE
1164	PPCODE:	1508	PPCODE:
1165	{	1509	{
…		…
1181	len = svlen - dataoffset;	1525	len = svlen - dataoffset;
1182	}	1526	}
1183	else	1527	else
1184	{	1528	{
1185	/* read: check type and grow scalar as necessary */	1529	/* read: check type and grow scalar as necessary */
1186	SvUPGRADE (data, SVt_PV);	1530	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1187	svptr = SvGROW (data, len + dataoffset + 1);	1531	svptr = sv_grow (data, len + dataoffset + 1);
		1532	else if (SvCUR (data) < len + dataoffset)
		1533	croak ("length + dataoffset outside of scalar, and cannot grow");
1188	}	1534	}
1189		1535
1190	{	1536	{
1191	dREQ;	1537	dREQ;
1192		1538
…		…
1208	REQ_SEND;	1554	REQ_SEND;
1209	}	1555	}
1210	}	1556	}
1211		1557
1212	void	1558	void
		1559	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1560	ALIAS:
		1561	aio_ioctl = EIO_IOCTL
		1562	aio_fcntl = EIO_FCNTL
		1563	PPCODE:
		1564	{
		1565	int fd = s_fileno_croak (fh, 0);
		1566	char *svptr;
		1567
		1568	if (SvPOK (arg) || !SvNIOK (arg))
		1569	{
		1570	STRLEN svlen;
		1571	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1572	#ifdef IOCPARM_LEN
		1573	STRLEN need = IOCPARM_LEN (request);
		1574	#else
		1575	STRLEN need = 256;
		1576	#endif
		1577
		1578	if (svlen < need)
		1579	svptr = SvGROW (arg, need);
		1580	}
		1581	else
		1582	svptr = (char *)SvIV (arg);
		1583
		1584	{
		1585	dREQ;
		1586
		1587	req->type = ix;
		1588	req->sv1 = newSVsv (fh);
		1589	req->int1 = fd;
		1590	req->int2 = (long)request;
		1591	req->sv2 = SvREFCNT_inc (arg);
		1592	req->ptr2 = svptr;
		1593
		1594	REQ_SEND;
		1595	}
		1596	}
		1597
		1598	void
1213	aio_readlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1599	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1214	ALIAS:	1600	ALIAS:
1215	aio_readlink = EIO_READLINK	1601	aio_readlink = EIO_READLINK
1216	aio_realpath = EIO_REALPATH	1602	aio_realpath = EIO_REALPATH
1217	PPCODE:	1603	PPCODE:
1218	{	1604	{
…		…
1223		1609
1224	REQ_SEND;	1610	REQ_SEND;
1225	}	1611	}
1226		1612
1227	void	1613	void
1228	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1614	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1229	PPCODE:	1615	PPCODE:
1230	{	1616	{
1231	int ifd = s_fileno_croak (in_fh , 0);	1617	int ifd = s_fileno_croak (in_fh , 0);
1232	int ofd = s_fileno_croak (out_fh, 1);	1618	int ofd = s_fileno_croak (out_fh, 1);
1233	dREQ;	1619	dREQ;
1234		1620
1235	req->type = EIO_SENDFILE;	1621	req->type = EIO_SENDFILE;
1236	req->sv1 = newSVsv (out_fh);	1622	req->sv1 = newSVsv (out_fh);
1237	req->int1 = ofd;	1623	req->int1 = ofd;
…		…
1242		1628
1243	REQ_SEND;	1629	REQ_SEND;
1244	}	1630	}
1245		1631
1246	void	1632	void
1247	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1633	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1248	PPCODE:	1634	PPCODE:
1249	{	1635	{
1250	int fd = s_fileno_croak (fh, 0);	1636	int fd = s_fileno_croak (fh, 0);
1251	dREQ;	1637	dREQ;
1252		1638
1253	req->type = EIO_READAHEAD;	1639	req->type = EIO_READAHEAD;
1254	req->sv1 = newSVsv (fh);	1640	req->sv1 = newSVsv (fh);
1255	req->int1 = fd;	1641	req->int1 = fd;
…		…
1258		1644
1259	REQ_SEND;	1645	REQ_SEND;
1260	}	1646	}
1261		1647
1262	void	1648	void
1263	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1649	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1264	ALIAS:	1650	ALIAS:
1265	aio_stat = EIO_STAT	1651	aio_stat = EIO_STAT
1266	aio_lstat = EIO_LSTAT	1652	aio_lstat = EIO_LSTAT
1267	aio_statvfs = EIO_STATVFS	1653	aio_statvfs = EIO_STATVFS
1268	PPCODE:	1654	PPCODE:
1269	{	1655	{
1270	dREQ;	1656	dREQ;
1271		1657
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);	1658	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
		1659
1274	REQ_SEND;	1660	REQ_SEND;
1275	}	1661	}
		1662
		1663	void
		1664	st_xtime ()
		1665	ALIAS:
		1666	st_atime = 0x01
		1667	st_mtime = 0x02
		1668	st_ctime = 0x04
		1669	st_btime = 0x08
		1670	st_xtime = 0x0f
		1671	PPCODE:
		1672	EXTEND (SP, 4);
		1673	if (ix & 0x01) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1674	if (ix & 0x02) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1675	if (ix & 0x04) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1676	if (ix & 0x08) PUSHs (newSVnv (BTIMESEC + 1e-9 * BTIMENSEC));
		1677
		1678	void
		1679	st_xtimensec ()
		1680	ALIAS:
		1681	st_atimensec = 0x01
		1682	st_mtimensec = 0x02
		1683	st_ctimensec = 0x04
		1684	st_btimensec = 0x08
		1685	st_xtimensec = 0x0f
		1686	st_btimesec = 0x10
		1687	st_gen = 0x20
		1688	PPCODE:
		1689	EXTEND (SP, 4);
		1690	if (ix & 0x01) PUSHs (newSViv (ATIMENSEC));
		1691	if (ix & 0x02) PUSHs (newSViv (MTIMENSEC));
		1692	if (ix & 0x04) PUSHs (newSViv (CTIMENSEC));
		1693	if (ix & 0x08) PUSHs (newSViv (BTIMENSEC));
		1694	if (ix & 0x10) PUSHs (newSVuv (BTIMESEC));
		1695	if (ix & 0x20) PUSHs (newSVuv (ST_GEN));
1276		1696
1277	UV	1697	UV
1278	major (UV dev)	1698	major (UV dev)
1279	ALIAS:	1699	ALIAS:
1280	minor = 1	1700	minor = 1
1281	CODE:	1701	CODE:
1282	RETVAL = ix ? major (dev) : minor (dev);	1702	RETVAL = ix ? minor (dev) : major (dev);
1283	OUTPUT:	1703	OUTPUT:
1284	RETVAL	1704	RETVAL
1285		1705
1286	UV	1706	UV
1287	makedev (UV maj, UV min)	1707	makedev (UV maj, UV min)
…		…
1289	RETVAL = makedev (maj, min);	1709	RETVAL = makedev (maj, min);
1290	OUTPUT:	1710	OUTPUT:
1291	RETVAL	1711	RETVAL
1292		1712
1293	void	1713	void
1294	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1714	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1295	PPCODE:	1715	PPCODE:
1296	{	1716	{
1297	dREQ;	1717	dREQ;
1298		1718
1299	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1719	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
…		…
1302		1722
1303	REQ_SEND;	1723	REQ_SEND;
1304	}	1724	}
1305		1725
1306	void	1726	void
1307	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1727	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1308	PPCODE:	1728	PPCODE:
1309	{	1729	{
1310	dREQ;	1730	dREQ;
1311		1731
1312	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1732	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
…		…
1314		1734
1315	REQ_SEND;	1735	REQ_SEND;
1316	}	1736	}
1317		1737
1318	void	1738	void
1319	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1739	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:	1740	PPCODE:
1324	{	1741	{
1325	dREQ;	1742	dREQ;
1326		1743
1327	req->int2 = mode;	1744	req->int2 = mode;
…		…
1329		1746
1330	REQ_SEND;	1747	REQ_SEND;
1331	}	1748	}
1332		1749
1333	void	1750	void
1334	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1751	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1335	PPCODE:	1752	PPCODE:
1336	{	1753	{
1337	dREQ;	1754	dREQ;
1338		1755
1339	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1756	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
…		…
1342		1759
1343	REQ_SEND;	1760	REQ_SEND;
1344	}	1761	}
1345		1762
1346	void	1763	void
1347	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1764	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1348	PPCODE:	1765	PPCODE:
1349	{	1766	{
1350	dREQ;	1767	dREQ;
1351		1768
1352	req->type = EIO_READDIR;	1769	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;	1770	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1356		1771
1357	if (flags & EIO_READDIR_DENTS)	1772	if (flags & EIO_READDIR_DENTS)
1358	req->int1 |= EIO_READDIR_CUSTOM2;	1773	req->int1 |= EIO_READDIR_CUSTOM2;
1359		1774
		1775	req_set_path1 (req, pathname);
		1776
1360	REQ_SEND;	1777	REQ_SEND;
1361	}	1778	}
1362		1779
1363	void	1780	void
		1781	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1782	PPCODE:
		1783	{
		1784	dREQ;
		1785
		1786	req->type = EIO_MKDIR;
		1787	req->int2 = mode;
		1788	req_set_path1 (req, pathname);
		1789
		1790	REQ_SEND;
		1791	}
		1792
		1793	void
1364	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1794	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1365	ALIAS:	1795	ALIAS:
1366	aio_unlink = EIO_UNLINK	1796	aio_unlink = EIO_UNLINK
1367	aio_rmdir = EIO_RMDIR	1797	aio_rmdir = EIO_RMDIR
1368	aio_readdir = EIO_READDIR	1798	aio_readdir = EIO_READDIR
1369	PPCODE:	1799	PPCODE:
…		…
1375		1805
1376	REQ_SEND;	1806	REQ_SEND;
1377	}	1807	}
1378		1808
1379	void	1809	void
1380	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1810	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1381	ALIAS:	1811	ALIAS:
1382	aio_link = EIO_LINK	1812	aio_link = EIO_LINK
1383	aio_symlink = EIO_SYMLINK	1813	aio_symlink = EIO_SYMLINK
1384	aio_rename = EIO_RENAME	1814	aio_rename = EIO_RENAME
1385	PPCODE:	1815	PPCODE:
1386	{	1816	{
		1817	eio_wd wd2 = 0;
1387	dREQ;	1818	dREQ;
1388	eio_wd wd2;
1389		1819
1390	req->type = ix;	1820	req->type = ix;
1391	req_set_path1 (req, oldpath);	1821	req_set_path1 (req, oldpath);
1392	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);	1822	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1393	req->int3 = (long)wd2;	1823	req->int3 = (long)wd2;
1394		1824
1395	REQ_SEND;	1825	REQ_SEND;
1396	}	1826	}
1397		1827
1398	void	1828	void
		1829	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1830	PPCODE:
		1831	{
		1832	eio_wd wd2 = 0;
		1833	dREQ;
		1834
		1835	req->type = EIO_RENAME;
		1836	req_set_path1 (req, oldpath);
		1837	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1838	req->int2 = flags;
		1839	req->int3 = (long)wd2;
		1840
		1841	REQ_SEND;
		1842	}
		1843
		1844	void
1399	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1845	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1400	PPCODE:	1846	PPCODE:
1401	{	1847	{
1402	dREQ;	1848	dREQ;
1403		1849
1404	req->type = EIO_MKNOD;	1850	req->type = EIO_MKNOD;
…		…
1408		1854
1409	REQ_SEND;	1855	REQ_SEND;
1410	}	1856	}
1411		1857
1412	void	1858	void
1413	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1859	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1414	ALIAS:	1860	ALIAS:
1415	aio_mtouch = EIO_MTOUCH	1861	aio_mtouch = EIO_MTOUCH
1416	aio_msync = EIO_MSYNC	1862	aio_msync = EIO_MSYNC
1417	PPCODE:	1863	PPCODE:
1418	{	1864	{
1419	STRLEN svlen;	1865	STRLEN svlen;
1420	char *svptr = SvPVbyte (data, svlen);	1866	char *svptr = SvPVbyte (data, svlen);
1421	UV len = SvUV (length);	1867	UV len = SvUV (length);
		1868
		1869	if (flags < 0)
		1870	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1422		1871
1423	if (offset < 0)	1872	if (offset < 0)
1424	offset += svlen;	1873	offset += svlen;
1425		1874
1426	if (offset < 0 || offset > svlen)	1875	if (offset < 0 || offset > svlen)
…		…
1441	REQ_SEND;	1890	REQ_SEND;
1442	}	1891	}
1443	}	1892	}
1444		1893
1445	void	1894	void
1446	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1895	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1447	PPCODE:	1896	PPCODE:
1448	{	1897	{
1449	STRLEN svlen;	1898	STRLEN svlen;
1450	char *svptr = SvPVbyte (data, svlen);	1899	char *svptr = SvPVbyte (data, svlen);
1451	UV len = SvUV (length);	1900	UV len = SvUV (length);
…		…
1470	REQ_SEND;	1919	REQ_SEND;
1471	}	1920	}
1472	}	1921	}
1473		1922
1474	void	1923	void
1475	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1924	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1476	PPCODE:	1925	PPCODE:
1477	{	1926	{
1478	dREQ;	1927	dREQ;
1479		1928
1480	req->type = EIO_MLOCKALL;	1929	req->type = EIO_MLOCKALL;
…		…
1482		1931
1483	REQ_SEND;	1932	REQ_SEND;
1484	}	1933	}
1485		1934
1486	void	1935	void
		1936	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1937	PPCODE:
		1938	{
		1939	int fd = s_fileno_croak (fh, 0);
		1940	dREQ;
		1941
		1942	req->type = EIO_CUSTOM;
		1943	req->sv1 = newSVsv (fh);
		1944	req->int1 = fd;
		1945
		1946	req->feed = fiemap;
		1947	#if HAVE_FIEMAP
		1948	/* keep our fingers crossed that the next two types are 64 bit */
		1949	req->offs = start;
		1950	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1951	req->int2 = flags;
		1952	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1953	#endif
		1954
		1955	REQ_SEND;
		1956	}
		1957
		1958	void
		1959	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1960	PPCODE:
		1961	{
		1962	char *svptr = 0;
		1963
		1964	sv_clear_foreign (data);
		1965
		1966	if (length) /* known length, directly read into scalar */
		1967	{
		1968	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1969	svptr = sv_grow (data, length + 1);
		1970	else if (SvCUR (data) < length)
		1971	croak ("length outside of scalar, and cannot grow");
		1972	else
		1973	svptr = SvPVbyte_nolen (data);
		1974	}
		1975
		1976	{
		1977	dREQ;
		1978
		1979	req->type = EIO_SLURP;
		1980	req_set_path1 (req, pathname);
		1981	req->offs = offset;
		1982	req->size = length;
		1983	req->sv2 = SvREFCNT_inc (data);
		1984	req->ptr2 = svptr;
		1985
		1986	if (!SvREADONLY (data))
		1987	{
		1988	SvREADONLY_on (data);
		1989	req->flags |= FLAG_SV2_RO_OFF;
		1990	}
		1991
		1992	REQ_SEND;
		1993	}
		1994	}
		1995
		1996	void
1487	aio_busy (double delay, SV *callback=&PL_sv_undef)	1997	aio_busy (double delay, SV *callback = &PL_sv_undef)
1488	PPCODE:	1998	PPCODE:
1489	{	1999	{
1490	dREQ;	2000	dREQ;
1491		2001
1492	req->type = EIO_BUSY;	2002	req->type = EIO_BUSY;
…		…
1494		2004
1495	REQ_SEND;	2005	REQ_SEND;
1496	}	2006	}
1497		2007
1498	void	2008	void
1499	aio_group (SV *callback=&PL_sv_undef)	2009	aio_group (SV *callback = &PL_sv_undef)
1500	PPCODE:	2010	PPCODE:
1501	{	2011	{
1502	dREQ;	2012	dREQ;
1503		2013
1504	req->type = EIO_GROUP;	2014	req->type = EIO_GROUP;
1505		2015
		2016	PUTBACK;
1506	req_submit (req);	2017	req_submit (req);
		2018	SPAGAIN;
		2019
1507	XPUSHs (req_sv (req, aio_grp_stash));	2020	XPUSHs (req_sv (req, aio_grp_stash));
1508	}	2021	}
1509		2022
1510	void	2023	void
1511	aio_nop (SV *callback=&PL_sv_undef)	2024	aio_nop (SV *callback = &PL_sv_undef)
1512	ALIAS:	2025	ALIAS:
1513	aio_nop = EIO_NOP	2026	aio_nop = EIO_NOP
1514	aio_sync = EIO_SYNC	2027	aio_sync = EIO_SYNC
1515	PPCODE:	2028	PPCODE:
1516	{	2029	{
…		…
1520		2033
1521	REQ_SEND;	2034	REQ_SEND;
1522	}	2035	}
1523		2036
1524	int	2037	int
1525	aioreq_pri (int pri = 0)	2038	aioreq_pri (int pri = NO_INIT)
1526	CODE:	2039	CODE:
1527	RETVAL = next_pri;	2040	RETVAL = next_pri;
1528	if (items > 0)	2041	if (items > 0)
1529	{	2042	{
1530	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2043	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1620	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2133	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1621	OUTPUT:	2134	OUTPUT:
1622	RETVAL	2135	RETVAL
1623		2136
1624	void	2137	void
1625	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2138	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1626	PPCODE:	2139	PPCODE:
1627	sv_unmagic (scalar, MMAP_MAGIC);	2140	sv_clear_foreign (scalar);
1628	{	2141	{
1629	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2142	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1630	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2143	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1631	if (addr == (void *)-1)	2144	if (addr == (void *)-1)
1632	XSRETURN_NO;	2145	XSRETURN_NO;
1633		2146
1634	sv_force_normal (scalar);	2147	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		2148
1642	if (!(prot & PROT_WRITE))	2149	if (!(prot & PROT_WRITE))
1643	SvREADONLY_on (scalar);	2150	SvREADONLY_on (scalar);
1644		2151
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;	2152	XSRETURN_YES;
1654	}	2153	}
1655		2154
1656	void	2155	void
1657	munmap (SV *scalar)	2156	munmap (SV *scalar)
1658	CODE:	2157	CODE:
1659	sv_unmagic (scalar, MMAP_MAGIC);	2158	sv_clear_foreign (scalar);
		2159
		2160	SV *
		2161	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2162	CODE:
		2163	{
		2164	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2165	void *new;
		2166
		2167	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2168	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2169
		2170	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2171
		2172	RETVAL = &PL_sv_no;
		2173
		2174	if (new != (void *)-1)
		2175	{
		2176	RETVAL = new == (void *)mg->mg_ptr
		2177	? newSVpvn ("0 but true", 10)
		2178	: &PL_sv_yes;
		2179
		2180	mg->mg_ptr = (char *)new;
		2181	mg->mg_obj = (SV *)new_length;
		2182
		2183	SvPVX (scalar) = mg->mg_ptr;
		2184	SvCUR_set (scalar, new_length);
		2185	}
		2186	}
		2187	OUTPUT:
		2188	RETVAL
1660		2189
1661	int	2190	int
1662	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2191	madvise (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1663	ALIAS:	2192	ALIAS:
1664	mprotect = 1	2193	mprotect = 1
1665	CODE:	2194	CODE:
1666	{	2195	{
1667	STRLEN svlen;	2196	STRLEN svlen;
1668	void *addr = SvPVbyte (scalar, svlen);	2197	void *addr = SvPVbyte (scalar, svlen);
1669	size_t len = SvUV (length);	2198	STRLEN len = SvUV (length);
1670		2199
1671	if (offset < 0)	2200	if (offset < 0)
1672	offset += svlen;	2201	offset += svlen;
1673		2202
1674	if (offset < 0 || offset > svlen)	2203	if (offset < 0 || offset > svlen)
…		…
1688	}	2217	}
1689	OUTPUT:	2218	OUTPUT:
1690	RETVAL	2219	RETVAL
1691		2220
1692	int	2221	int
1693	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2222	munlock (SV *scalar, IV offset = 0, SV *length = &PL_sv_undef)
1694	CODE:	2223	CODE:
1695	{	2224	{
1696	STRLEN svlen;	2225	STRLEN svlen;
1697	void *addr = SvPVbyte (scalar, svlen);	2226	void *addr = SvPVbyte (scalar, svlen);
1698	size_t len = SvUV (length);	2227	size_t len = SvUV (length);
1699		2228
1700	if (offset < 0)	2229	if (offset < 0)
1701	offset += svlen;	2230	offset += svlen;
1702		2231
…		…
1709	addr = (void *)(((intptr_t)addr) + offset);	2238	addr = (void *)(((intptr_t)addr) + offset);
1710	eio_page_align (&addr, &len);	2239	eio_page_align (&addr, &len);
1711	#if _POSIX_MEMLOCK_RANGE	2240	#if _POSIX_MEMLOCK_RANGE
1712	RETVAL = munlock (addr, len);	2241	RETVAL = munlock (addr, len);
1713	#else	2242	#else
1714	RETVAL = ((errno = ENOSYS), -1);	2243	RETVAL = EIO_ENOSYS ();
1715	#endif	2244	#endif
1716	}	2245	}
1717	OUTPUT:	2246	OUTPUT:
1718	RETVAL	2247	RETVAL
1719		2248
…		…
1721	munlockall ()	2250	munlockall ()
1722	CODE:	2251	CODE:
1723	#if _POSIX_MEMLOCK	2252	#if _POSIX_MEMLOCK
1724	munlockall ();	2253	munlockall ();
1725	#else	2254	#else
1726	RETVAL = -1;	2255	RETVAL = EIO_ENOSYS ();
1727	errno = ENOSYS;
1728	#endif	2256	#endif
1729	OUTPUT:	2257	OUTPUT:
1730	RETVAL	2258	RETVAL
		2259
		2260	int
		2261	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2262	CODE:
		2263	{
		2264	#if HAVE_LINUX_SPLICE
		2265	loff_t off_in_, off_out_;
		2266	RETVAL = splice (
		2267	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2268	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2269	length, flags
		2270	);
		2271	#else
		2272	RETVAL = EIO_ENOSYS ();
		2273	#endif
		2274	}
		2275	OUTPUT:
		2276	RETVAL
		2277
		2278	int
		2279	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2280	CODE:
		2281	#if HAVE_LINUX_SPLICE
		2282	RETVAL = tee (rfh, wfh, length, flags);
		2283	#else
		2284	RETVAL = EIO_ENOSYS ();
		2285	#endif
		2286	OUTPUT:
		2287	RETVAL
		2288
		2289	int
		2290	pipesize (aio_rfd rfh, int new_size = -1)
		2291	PROTOTYPE: $;$
		2292	CODE:
		2293	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2294	if (new_size >= 0)
		2295	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2296	else
		2297	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2298	#else
		2299	errno = ENOSYS;
		2300	RETVAL = -1;
		2301	#endif
		2302	OUTPUT:
		2303	RETVAL
		2304
		2305	void
		2306	pipe2 (int flags = 0)
		2307	PROTOTYPE: ;$
		2308	PPCODE:
		2309	{
		2310	int fd[2];
		2311	int res;
		2312
		2313	if (flags)
		2314	#if HAVE_PIPE2
		2315	res = pipe2 (fd, flags);
		2316	#else
		2317	res = (errno = ENOSYS, -1);
		2318	#endif
		2319	else
		2320	res = pipe (fd);
		2321
		2322	if (!res)
		2323	{
		2324	EXTEND (SP, 2);
		2325	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2326	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2327	}
		2328	}
		2329
		2330	void
		2331	eventfd (unsigned int initval = 0, int flags = 0)
		2332	PPCODE:
		2333	{
		2334	int fd;
		2335	#if HAVE_EVENTFD
		2336	fd = eventfd (initval, flags);
		2337	#else
		2338	fd = (errno = ENOSYS, -1);
		2339	#endif
		2340
		2341	XPUSHs (newmortalFH (fd, O_RDWR));
		2342	}
		2343
		2344	void
		2345	timerfd_create (int clockid, int flags = 0)
		2346	PPCODE:
		2347	{
		2348	int fd;
		2349	#if HAVE_TIMERFD
		2350	fd = timerfd_create (clockid, flags);
		2351	#else
		2352	fd = (errno = ENOSYS, -1);
		2353	#endif
		2354
		2355	XPUSHs (newmortalFH (fd, O_RDWR));
		2356	}
		2357
		2358	void
		2359	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2360	PPCODE:
		2361	{
		2362	int fd = s_fileno_croak (fh, 0);
		2363	#if HAVE_TIMERFD
		2364	int res;
		2365	struct itimerspec its, ots;
		2366
		2367	ts_set (&its.it_interval, interval);
		2368	ts_set (&its.it_value , value);
		2369	res = timerfd_settime (fd, flags, &its, &ots);
		2370
		2371	if (!res)
		2372	{
		2373	EXTEND (SP, 2);
		2374	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2375	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2376	}
		2377	#else
		2378	errno = ENOSYS;
		2379	#endif
		2380	}
		2381
		2382	void
		2383	timerfd_gettime (SV *fh)
		2384	PPCODE:
		2385	{
		2386	int fd = s_fileno_croak (fh, 0);
		2387	#if HAVE_TIMERFD
		2388	int res;
		2389	struct itimerspec ots;
		2390	res = timerfd_gettime (fd, &ots);
		2391
		2392	if (!res)
		2393	{
		2394	EXTEND (SP, 2);
		2395	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2396	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2397	}
		2398	#else
		2399	errno = ENOSYS;
		2400	#endif
		2401	}
		2402
		2403	UV
		2404	get_fdlimit ()
		2405	CODE:
		2406	#if HAVE_RLIMITS
		2407	struct rlimit rl;
		2408	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2409	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2410	#endif
		2411	XSRETURN_UNDEF;
		2412	OUTPUT:
		2413	RETVAL
		2414
		2415	void
		2416	min_fdlimit (UV limit = 0x7fffffffU)
		2417	CODE:
		2418	{
		2419	#if HAVE_RLIMITS
		2420	struct rlimit rl;
		2421	rlim_t orig_rlim_max;
		2422	UV bit;
		2423
		2424	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2425	goto fail;
		2426
		2427	if (rl.rlim_cur == RLIM_INFINITY)
		2428	XSRETURN_YES;
		2429
		2430	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2431
		2432	if (rl.rlim_cur < limit)
		2433	{
		2434	rl.rlim_cur = limit;
		2435
		2436	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2437	rl.rlim_max = rl.rlim_cur;
		2438	}
		2439
		2440	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2441	XSRETURN_YES;
		2442
		2443	if (errno == EPERM)
		2444	{
		2445	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2446	/* our limit overflows a system-wide limit */
		2447	/* try an adaptive algorithm, but do not lower the hardlimit */
		2448	rl.rlim_max = 0;
		2449	for (bit = 0x40000000U; bit; bit >>= 1)
		2450	{
		2451	rl.rlim_max |= bit;
		2452	rl.rlim_cur = rl.rlim_max;
		2453
		2454	/* nevr decrease the hard limit */
		2455	if (rl.rlim_max < orig_rlim_max)
		2456	break;
		2457
		2458	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2459	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2460	}
		2461
		2462	/* now, raise the soft limit to the max permitted */
		2463	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2464	{
		2465	rl.rlim_cur = rl.rlim_max;
		2466	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2467	errno = EPERM;
		2468	}
		2469	}
		2470	#endif
		2471	fail:
		2472	XSRETURN_UNDEF;
		2473	}
1731		2474
1732	void _on_next_submit (SV *cb)	2475	void _on_next_submit (SV *cb)
1733	CODE:	2476	CODE:
1734	SvREFCNT_dec (on_next_submit);	2477	SvREFCNT_dec (on_next_submit);
1735	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2478	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1736		2479
1737	PROTOTYPES: DISABLE	2480	PROTOTYPES: DISABLE
1738		2481
1739	MODULE = IO::AIO PACKAGE = IO::AIO::WD	2482	MODULE = IO::AIO PACKAGE = IO::AIO::WD
1740		2483
		2484	BOOT:
		2485	{
		2486	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2487	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2488	}
		2489
1741	void	2490	void
1742	DESTROY (SV *self)	2491	DESTROY (SV *self)
1743	CODE:	2492	CODE:
1744	{	2493	{
1745	aio_wd wd = SvAIO_WD (self);	2494	aio_wd wd = SvAIO_WD (self);
1746	#if HAVE_AT	2495	#if HAVE_AT
		2496	{
1747	SV *callback = &PL_sv_undef;	2497	SV *callback = &PL_sv_undef;
1748	dREQ; /* clobbers next_pri :/ */	2498	dREQ; /* clobbers next_pri :/ */
		2499	next_pri = req->pri; /* restore next_pri */
		2500	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
1749	req->type = EIO_WD_CLOSE;	2501	req->type = EIO_WD_CLOSE;
1750	req->wd = wd;	2502	req->wd = wd;
1751	REQ_SEND;	2503	REQ_SEND;
		2504	}
1752	#else	2505	#else
1753	eio_wd_close_sync (wd);	2506	eio_wd_close_sync (wd);
1754	#endif	2507	#endif
1755	}	2508	}
1756		2509
…		…
1760	cancel (aio_req_ornot req)	2513	cancel (aio_req_ornot req)
1761	CODE:	2514	CODE:
1762	eio_cancel (req);	2515	eio_cancel (req);
1763		2516
1764	void	2517	void
1765	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2518	cb (aio_req_ornot req, SV *callback = NO_INIT)
1766	PPCODE:	2519	PPCODE:
1767	{	2520	{
1768	if (GIMME_V != G_VOID)	2521	if (GIMME_V != G_VOID)
1769	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2522	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1770		2523
1771	if (items > 1)	2524	if (items > 1)
1772	{	2525	{
1773	SV *cb_cv =get_cb (callback);	2526	SV *cb_cv = get_cb (callback);
1774		2527
1775	SvREFCNT_dec (req->callback);	2528	SvREFCNT_dec (req->callback);
1776	req->callback = SvREFCNT_inc (cb_cv);	2529	req->callback = SvREFCNT_inc (cb_cv);
1777	}	2530	}
1778	}	2531	}
…		…
1835	limit (aio_req grp, int limit)	2588	limit (aio_req grp, int limit)
1836	CODE:	2589	CODE:
1837	eio_grp_limit (grp, limit);	2590	eio_grp_limit (grp, limit);
1838		2591
1839	void	2592	void
1840	feed (aio_req grp, SV *callback=&PL_sv_undef)	2593	feed (aio_req grp, SV *callback = &PL_sv_undef)
1841	CODE:	2594	CODE:
1842	{	2595	{
1843	SvREFCNT_dec (grp->sv2);	2596	SvREFCNT_dec (grp->sv2);
1844	grp->sv2 = newSVsv (callback);	2597	grp->sv2 = newSVsv (callback);
1845	grp->feed = aio_grp_feed;	2598	grp->feed = aio_grp_feed;

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