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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.188 by root, Sun Jul 17 04:20:04 2011 UTC vs.
Revision 1.258 by root, Wed Jul 18 00:57:55 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>
…		…
19		21
20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES	22	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	23	# include <sys/mman.h>
22	#endif	24	#endif
23		25
		26	/* the incompetent fool that created musl keeps __linux__, refuses
		27	* to implement any linux standard apis, and also has no way to test
		28	* for his broken iplementation. don't complain to me if this fails
		29	* for you.
		30	*/
		31	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		32	# include <linux/fs.h>
		33	# ifdef FS_IOC_FIEMAP
		34	# include <linux/types.h>
		35	# include <linux/fiemap.h>
		36	# define HAVE_FIEMAP 1
		37	# endif
		38	#endif
		39
24	/* perl namespace pollution */	40	/* perl namespace pollution */
25	#undef VERSION	41	#undef VERSION
26		42
27	/* perl stupidly overrides readdir and maybe others */	43	/* perl stupidly overrides readdir and maybe others */
28	/* with thread-unsafe versions, imagine that :( */	44	/* with thread-unsafe versions, imagine that :( */
…		…
30	#undef opendir	46	#undef opendir
31	#undef closedir	47	#undef closedir
32		48
33	#ifdef _WIN32	49	#ifdef _WIN32
34		50
35	#define EIO_STRUCT_DIRENT Direntry_t	51	// perl overrides all those nice libc functions
		52
36	#undef malloc	53	#undef malloc
37	#undef free	54	#undef free
38
39	// perl overrides all those nice libc functions
40	#undef open	55	#undef open
41	#undef read	56	#undef read
42	#undef write	57	#undef write
43	#undef send	58	#undef send
44	#undef recv	59	#undef recv
…		…
63	#undef dup	78	#undef dup
64	#undef dup2	79	#undef dup2
65	#undef abort	80	#undef abort
66	#undef pipe	81	#undef pipe
67		82
		83	#define EIO_STRUCT_STAT struct _stati64
		84	#define EIO_STRUCT_STATI64
		85
68	#else	86	#else
69		87
70	#include <sys/time.h>	88	#include <sys/time.h>
71	#include <sys/select.h>	89	#include <sys/select.h>
72	#include <unistd.h>	90	#include <unistd.h>
73	#include <utime.h>	91	#include <utime.h>
74	#include <signal.h>	92	#include <signal.h>
75		93
76	#endif
77
78	#define EIO_STRUCT_STAT Stat_t	94	#define EIO_STRUCT_STAT Stat_t
79		95
80	/* use NV for 32 bit perls as it allows larger offsets */
81	#if IVSIZE >= 8
82	# define VAL64 IV
83	# define SvVAL64 SvIV
84	# define newSVval64 newSViv
85	#else
86	# define VAL64 NV
87	# define SvVAL64 SvNV
88	# define newSVval64 newSVnv
89	#endif	96	#endif
90		97
91	/*****************************************************************************/	98	/*****************************************************************************/
92		99
93	#if __GNUC__ >= 3	100	#if __GNUC__ >= 3
…		…
99	#define expect_false(expr) expect ((expr) != 0, 0)	106	#define expect_false(expr) expect ((expr) != 0, 0)
100	#define expect_true(expr) expect ((expr) != 0, 1)	107	#define expect_true(expr) expect ((expr) != 0, 1)
101		108
102	/*****************************************************************************/	109	/*****************************************************************************/
103		110
		111	#include "libeio/config.h"
		112
		113	#include "schmorp.h"
		114
		115	#if HAVE_EVENTFD
		116	# include <sys/eventfd.h>
		117	#endif
		118
		119	#if HAVE_TIMERFD
		120	# include <sys/timerfd.h>
		121	#endif
		122
		123	#if HAVE_RLIMITS
		124	#include <sys/time.h>
		125	#include <sys/resource.h>
		126	#endif
		127
104	typedef SV SV8; /* byte-sv, used for argument-checking */	128	typedef SV SV8; /* byte-sv, used for argument-checking */
105	typedef int aio_rfd; /* read file desriptor */	129	typedef int aio_rfd; /* read file desriptor */
106	typedef int aio_wfd; /* write file descriptor */	130	typedef int aio_wfd; /* write file descriptor */
107		131
108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	132	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
109		133
110	#define EIO_REQ_MEMBERS \	134	#define EIO_REQ_MEMBERS \
111	SV *callback; \	135	SV *callback; \
112	SV *sv1, *sv2; \	136	SV *sv1, *sv2; \
		137	SV *sv3, *sv4; \
113	STRLEN stroffset; \	138	STRLEN stroffset; \
114	SV *self;	139	SV *self;
115		140
116	#define EIO_NO_WRAPPERS 1	141	#define EIO_NO_WRAPPERS 1
117		142
118	#include "libeio/config.h"
119	#include "libeio/eio.h"	143	#include "libeio/eio.h"
120		144
121	static int req_invoke (eio_req *req);	145	static int req_invoke (eio_req *req);
122	#define EIO_FINISH(req) req_invoke (req)	146	#define EIO_FINISH(req) req_invoke (req)
123	static void req_destroy (eio_req *grp);	147	static void req_destroy (eio_req *grp);
124	#define EIO_DESTROY(req) req_destroy (req)	148	#define EIO_DESTROY(req) req_destroy (req)
125		149
126	#include "libeio/eio.c"	150	#include "libeio/eio.c"
127		151
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	152	#if !HAVE_POSIX_FADVISE
194	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	153	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
195	#endif	154	#endif
196		155
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	156	#if !HAVE_POSIX_MADVISE
214	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	157	# 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	158	#endif
291		159
292	#ifndef MAP_ANONYMOUS	160	#ifndef MAP_ANONYMOUS
293	# ifdef MAP_ANON	161	# ifdef MAP_ANON
294	# define MAP_ANONYMOUS MAP_ANON	162	# define MAP_ANONYMOUS MAP_ANON
295	# else	163	# else
296	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	164	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
297	# endif	165	# endif
298	#endif	166	#endif
299	#ifndef MAP_HUGETLB	167
300	# define MAP_HUGETLB 0	168	/* defines all sorts of constants to 0 unless they are already defined */
301	#endif	169	/* also provides const_iv_ and const_niv_ macros for them */
302	#ifndef MAP_LOCKED	170	#include "def0.h"
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		171
315	#ifndef makedev	172	#ifndef makedev
316	# define makedev(maj,min) (((maj) << 8) | (min))	173	# define makedev(maj,min) (((maj) << 8) | (min))
317	#endif	174	#endif
318	#ifndef major	175	#ifndef major
…		…
320	#endif	177	#endif
321	#ifndef minor	178	#ifndef minor
322	# define minor(dev) ((dev) & 0xff)	179	# define minor(dev) ((dev) & 0xff)
323	#endif	180	#endif
324		181
325	#ifndef PAGESIZE	182	#if PAGESIZE <= 0
326	# define PAGESIZE sysconf (_SC_PAGESIZE)	183	# define PAGESIZE sysconf (_SC_PAGESIZE)
327	#endif	184	#endif
		185
		186	/*****************************************************************************/
		187
		188	#if !_POSIX_MAPPED_FILES
		189	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		190	# define munmap(addr,length) EIO_ENOSYS ()
		191	#endif
		192
		193	#if !_POSIX_MEMORY_PROTECTION
		194	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		195	#endif
		196
		197	#if !MREMAP_MAYMOVE
		198	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		199	#endif
		200
		201	#define FOREIGN_MAGIC PERL_MAGIC_ext
		202
		203	static int ecb_cold
		204	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		205	{
		206	int old_errno = errno;
		207	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		208	errno = old_errno;
		209
		210	mg->mg_obj = 0; /* just in case */
		211
		212	SvREADONLY_off (sv);
		213
		214	if (SvPVX (sv) != mg->mg_ptr)
		215	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		216
		217	SvCUR_set (sv, 0);
		218	SvPVX (sv) = 0;
		219	SvOK_off (sv);
		220
		221	return 0;
		222	}
		223
		224	static MGVTBL mmap_vtbl = {
		225	0, 0, 0, 0, mmap_free
		226	};
		227
		228	static int ecb_cold
		229	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		230	{
		231	free (mg->mg_ptr);
		232	mg->mg_obj = 0; /* just in case */
		233
		234	SvREADONLY_off (sv);
		235
		236	if (SvPVX (sv) != mg->mg_ptr)
		237	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		238
		239	SvCUR_set (sv, 0);
		240	SvPVX (sv) = 0;
		241	SvOK_off (sv);
		242
		243	return 0;
		244	}
		245
		246	static MGVTBL sysfree_vtbl = {
		247	0, 0, 0, 0, sysfree_free
		248	};
		249
		250	/*****************************************************************************/
		251
		252	/* helper: set scalar to foreign ptr with custom free */
		253	static void
		254	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		255	{
		256	sv_force_normal (sv);
		257
		258	/* we store the length in mg_obj, as namlen is I32 :/ */
		259	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		260	->mg_obj = (SV *)length;
		261
		262	SvUPGRADE (sv, SVt_PV); /* nop... */
		263
		264	if (SvLEN (sv))
		265	Safefree (SvPVX (sv));
		266
		267	SvPVX (sv) = (char *)addr;
		268	SvCUR_set (sv, length);
		269	SvLEN_set (sv, 0);
		270	SvPOK_only (sv);
		271	}
		272
		273	static void
		274	sv_clear_foreign (SV *sv)
		275	{
		276	/* todo: iterate over magic and only free ours, but of course */
		277	/* the perl5porters will call that (correct) behaviour buggy */
		278	sv_unmagic (sv, FOREIGN_MAGIC);
		279	}
		280
		281	/*****************************************************************************/
		282
		283	static void
		284	fiemap (eio_req *req)
		285	{
		286	req->result = -1;
		287
		288	#if HAVE_FIEMAP
		289	/* assume some c99 */
		290	struct fiemap *fiemap = 0;
		291	size_t end_offset;
		292	int count = req->int3;
		293
		294	req->flags |= EIO_FLAG_PTR1_FREE;
		295
		296	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		297	/* increase in 3.5kb steps */
		298	if (count < 0)
		299	count = 8;
		300
		301	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		302	errno = ENOMEM;
		303	if (!fiemap)
		304	return;
		305
		306	req->ptr1 = fiemap;
		307
		308	fiemap->fm_start = req->offs;
		309	fiemap->fm_length = req->size;
		310	fiemap->fm_flags = req->int2;
		311	fiemap->fm_extent_count = count;
		312
		313	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		314	return;
		315
		316	if (req->int3 >= 0 /* not autosizing */
		317	|| !fiemap->fm_mapped_extents /* no more extents */
		318	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		319	goto done;
		320
		321	/* else we have to loop -
		322	* it would be tempting (actually I tried that first) to just query the
		323	* number of extents needed, but linux often feels like not returning all
		324	* extents, without telling us it left any out. this complicates
		325	* this quite a bit.
		326	*/
		327
		328	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		329
		330	for (;;)
		331	{
		332	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		333	char scratch[3072];
		334	struct fiemap *incmap = (struct fiemap *)scratch;
		335
		336	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		337	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		338	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		339	incmap->fm_flags = fiemap->fm_flags;
		340	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		341
		342	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		343	return;
		344
		345	if (!incmap->fm_mapped_extents)
		346	goto done;
		347
		348	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		349	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		350	errno = ENOMEM;
		351	if (!fiemap)
		352	return;
		353
		354	req->ptr1 = fiemap;
		355
		356	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		357	{
		358	struct fiemap_extent *e = incmap->fm_extents + count;
		359
		360	if (e->fe_logical + e->fe_length >= end_offset)
		361	goto done;
		362
		363	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		364
		365	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		366	goto done;
		367
		368	}
		369	}
		370
		371	done:
		372	req->result = 0;
		373
		374	#else
		375	errno = ENOSYS;
		376	#endif
		377	}
		378
		379	/*****************************************************************************/
328		380
329	enum {	381	enum {
330	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	382	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
331	};	383	};
332		384
333	typedef eio_req *aio_req;	385	typedef eio_req *aio_req;
334	typedef eio_req *aio_req_ornot;	386	typedef eio_req *aio_req_ornot;
		387	typedef eio_wd aio_wd;
335		388
336	static SV *on_next_submit;	389	static SV *on_next_submit;
337	static int next_pri = EIO_PRI_DEFAULT;	390	static int next_pri = EIO_PRI_DEFAULT;
338	static int max_outstanding;	391	static int max_outstanding;
339		392
340	static s_epipe respipe;	393	static s_epipe respipe;
341		394
342	static void req_destroy (aio_req req);	395	static void req_destroy (aio_req req);
343	static void req_cancel (aio_req req);	396	static void req_cancel (aio_req req);
344		397
345	static void want_poll (void)	398	static void
		399	want_poll (void)
346	{	400	{
347	/* write a dummy byte to the pipe so fh becomes ready */	401	/* write a dummy byte to the pipe so fh becomes ready */
348	s_epipe_signal (&respipe);	402	s_epipe_signal (&respipe);
349	}	403	}
350		404
351	static void done_poll (void)	405	static void
		406	done_poll (void)
352	{	407	{
353	/* read any signals sent by the worker threads */	408	/* read any signals sent by the worker threads */
354	s_epipe_drain (&respipe);	409	s_epipe_drain (&respipe);
355	}	410	}
356		411
357	/* must be called at most once */	412	/* must be called at most once */
		413	static SV *
358	static SV *req_sv (aio_req req, HV *stash)	414	req_sv (aio_req req, HV *stash)
359	{	415	{
360	if (!req->self)	416	if (!req->self)
361	{	417	{
362	req->self = (SV *)newHV ();	418	req->self = (SV *)newHV ();
363	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	419	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
364	}	420	}
365		421
366	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	422	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
367	}	423	}
368		424
369	static aio_req SvAIO_REQ (SV *sv)	425	static SV *
		426	newSVaio_wd (aio_wd wd)
		427	{
		428	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		429	}
		430
		431	static aio_req
		432	SvAIO_REQ (SV *sv)
370	{	433	{
371	MAGIC *mg;	434	MAGIC *mg;
372		435
373	if (!SvROK (sv)	436	if (!SvROK (sv)
		437	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
374	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	438	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
375	&& SvSTASH (SvRV (sv)) != aio_req_stash	439	&& SvSTASH (SvRV (sv)) != aio_req_stash
376	&& !sv_derived_from (sv, "IO::AIO::REQ")))	440	&& !sv_derived_from (sv, "IO::AIO::REQ")))
377	croak ("object of class IO::AIO::REQ expected");	441	croak ("object of class IO::AIO::REQ expected");
378		442
379	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	443	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
380		444
381	return mg ? (aio_req)mg->mg_ptr : 0;	445	return mg ? (aio_req)mg->mg_ptr : 0;
382	}	446	}
383		447
		448	static aio_wd
		449	SvAIO_WD (SV *sv)
		450	{
		451	if (!SvROK (sv)
		452	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		453	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		454	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		455
		456	return (aio_wd)(long)SvIVX (SvRV (sv));
		457	}
		458
		459	static SV *
		460	newmortalFH (int fd, int flags)
		461	{
		462	if (fd < 0)
		463	return &PL_sv_undef;
		464
		465	GV *gv = (GV *)sv_newmortal ();
		466	char sym[64];
		467	int symlen;
		468
		469	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		470	gv_init (gv, aio_stash, sym, symlen, 0);
		471
		472	symlen = snprintf (
		473	sym,
		474	sizeof (sym),
		475	"%s&=%d",
		476	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		477	fd
		478	);
		479
		480	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		481	? (SV *)gv : &PL_sv_undef;
		482	}
		483
		484	static void
384	static void aio_grp_feed (aio_req grp)	485	aio_grp_feed (aio_req grp)
385	{	486	{
386	if (grp->sv2 && SvOK (grp->sv2))	487	if (grp->sv2 && SvOK (grp->sv2))
387	{	488	{
388	dSP;	489	dSP;
389		490
…		…
397	FREETMPS;	498	FREETMPS;
398	LEAVE;	499	LEAVE;
399	}	500	}
400	}	501	}
401		502
		503	static void
402	static void req_submit (eio_req *req)	504	req_submit (eio_req *req)
403	{	505	{
404	eio_submit (req);	506	eio_submit (req);
405		507
406	if (expect_false (on_next_submit))	508	if (expect_false (on_next_submit))
407	{	509	{
…		…
414	PUTBACK;	516	PUTBACK;
415	call_sv (cb, G_DISCARD | G_EVAL);	517	call_sv (cb, G_DISCARD | G_EVAL);
416	}	518	}
417	}	519	}
418		520
		521	static int
419	static int req_invoke (eio_req *req)	522	req_invoke (eio_req *req)
420	{	523	{
421	if (req->flags & FLAG_SV2_RO_OFF)	524	if (req->flags & FLAG_SV2_RO_OFF)
422	SvREADONLY_off (req->sv2);	525	SvREADONLY_off (req->sv2);
423		526
424	if (!EIO_CANCELLED (req) && req->callback)	527	if (!EIO_CANCELLED (req) && req->callback)
…		…
445	SvREADONLY_on (sv_result);	548	SvREADONLY_on (sv_result);
446	}	549	}
447		550
448	switch (req->type)	551	switch (req->type)
449	{	552	{
		553	case EIO_WD_OPEN:
		554	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		555	break;
		556
450	case EIO_READDIR:	557	case EIO_READDIR:
451	{	558	{
452	SV *rv = &PL_sv_undef;	559	SV *rv = &PL_sv_undef;
453		560
454	if (req->result >= 0)	561	if (req->result >= 0)
…		…
507	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	614	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
508	}	615	}
509	break;	616	break;
510		617
511	case EIO_OPEN:	618	case EIO_OPEN:
512	{	619	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
513	/* convert fd to fh */
514	SV *fh = &PL_sv_undef;
515
516	if (req->result >= 0)
517	{
518	GV *gv = (GV *)sv_newmortal ();
519	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
520	char sym [64];
521	int symlen;
522
523	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
524	gv_init (gv, aio_stash, sym, symlen, 0);
525
526	symlen = snprintf (
527	sym,
528	sizeof (sym),
529	"%s&=%d",
530	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
531	(int)req->result
532	);
533
534	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
535	fh = (SV *)gv;
536	}
537
538	PUSHs (fh);
539	}
540	break;	620	break;
541		621
542	case EIO_STATVFS:	622	case EIO_STATVFS:
543	case EIO_FSTATVFS:	623	case EIO_FSTATVFS:
544	{	624	{
…		…
547	#ifndef _WIN32	627	#ifndef _WIN32
548	if (req->result >= 0)	628	if (req->result >= 0)
549	{	629	{
550	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	630	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
551	HV *hv = newHV ();	631	HV *hv = newHV ();
		632	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		633	* chooses to make it a struct.
		634	*/
		635	unsigned long fsid = 0;
		636	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
552		637
553	rv = sv_2mortal (newRV_noinc ((SV *)hv));	638	rv = sv_2mortal (newRV_noinc ((SV *)hv));
554		639
555	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	640	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
556	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	641	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
558	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	643	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
559	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	644	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
560	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	645	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
561	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	646	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
562	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	647	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
563	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	648	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
564	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	649	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
565	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	650	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
566	}	651	}
567	#endif	652	#endif
568		653
…		…
596	break;	681	break;
597		682
598	case EIO_STAT:	683	case EIO_STAT:
599	case EIO_LSTAT:	684	case EIO_LSTAT:
600	case EIO_FSTAT:	685	case EIO_FSTAT:
601	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	686	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		687
602	PL_laststatval = req->result;	688	if (!(PL_laststatval = req->result))
603	/* if compilation fails here then perl's Stat_t is not struct _stati64 */	689	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
604	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	690	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		691
605	PUSHs (sv_result);	692	PUSHs (sv_result);
		693	break;
		694
		695	case EIO_SEEK:
		696	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
606	break;	697	break;
607		698
608	case EIO_READ:	699	case EIO_READ:
609	{	700	{
610	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	701	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
613	SvSETMAGIC (req->sv2);	704	SvSETMAGIC (req->sv2);
614	PUSHs (sv_result);	705	PUSHs (sv_result);
615	}	706	}
616	break;	707	break;
617		708
		709	case EIO_SLURP:
		710	{
		711	if (req->result >= 0)
		712	{
		713	/* if length was originally not known, we steal the malloc'ed memory */
		714	if (req->flags & EIO_FLAG_PTR2_FREE)
		715	{
		716	req->flags &= ~EIO_FLAG_PTR2_FREE;
		717	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		718	}
		719	else
		720	{
		721	SvCUR_set (req->sv2, req->result);
		722	*SvEND (req->sv2) = 0;
		723	SvPOK_only (req->sv2);
		724	}
		725
		726	SvSETMAGIC (req->sv2);
		727	}
		728
		729	PUSHs (sv_result);
		730	}
		731	break;
		732
		733	case EIO_CUSTOM:
		734	if (req->feed == fiemap)
		735	{
		736	#if HAVE_FIEMAP
		737	if (!req->result)
		738	{
		739	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		740
		741	if (fiemap->fm_extent_count)
		742	{
		743	AV *av = newAV ();
		744	int i;
		745
		746	while (fiemap->fm_mapped_extents)
		747	{
		748	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		749	AV *ext_av = newAV ();
		750
		751	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		752	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		753	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		754	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		755
		756	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		757	}
		758
		759	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		760	}
		761	else
		762	{
		763	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		764	PUSHs (sv_result);
		765	}
		766	}
		767	#endif
		768	}
		769	else
		770	PUSHs (sv_result);
		771	break;
		772
618	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	773	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
619	if (req->result > 0)	774	if (req->result > 0)
620	SvIV_set (sv_result, 0);	775	SvIV_set (sv_result, 0);
621	/* FALLTHROUGH */	776	/* FALLTHROUGH */
622		777
…		…
643	}	798	}
644		799
645	return !!SvTRUE (ERRSV);	800	return !!SvTRUE (ERRSV);
646	}	801	}
647		802
		803	static void
648	static void req_destroy (aio_req req)	804	req_destroy (aio_req req)
649	{	805	{
650	if (req->self)	806	if (req->self)
651	{	807	{
652	sv_unmagic (req->self, PERL_MAGIC_ext);	808	sv_unmagic (req->self, PERL_MAGIC_ext);
653	SvREFCNT_dec (req->self);	809	SvREFCNT_dec (req->self);
654	}	810	}
655		811
656	SvREFCNT_dec (req->sv1);	812	SvREFCNT_dec (req->sv1);
657	SvREFCNT_dec (req->sv2);	813	SvREFCNT_dec (req->sv2);
		814	SvREFCNT_dec (req->sv3);
		815	SvREFCNT_dec (req->sv4);
658	SvREFCNT_dec (req->callback);	816	SvREFCNT_dec (req->callback);
659		817
660	Safefree (req);	818	free (req);
661	}	819	}
662		820
		821	static void
663	static void req_cancel_subs (aio_req grp)	822	req_cancel_subs (aio_req grp)
664	{	823	{
665	if (grp->type != EIO_GROUP)	824	if (grp->type != EIO_GROUP)
666	return;	825	return;
667		826
668	SvREFCNT_dec (grp->sv2);	827	SvREFCNT_dec (grp->sv2);
669	grp->sv2 = 0;	828	grp->sv2 = 0;
670		829
671	eio_grp_cancel (grp);	830	eio_grp_cancel (grp);
672	}	831	}
673		832
		833	static void ecb_cold
674	static void create_respipe (void)	834	create_respipe (void)
675	{	835	{
676	if (s_epipe_renew (&respipe))	836	if (s_epipe_renew (&respipe))
677	croak ("IO::AIO: unable to initialize result pipe");	837	croak ("IO::AIO: unable to initialize result pipe");
678	}	838	}
679		839
680	static void poll_wait (void)	840	static void
		841	poll_wait (void)
681	{	842	{
682	while (eio_nreqs ())	843	while (eio_nreqs ())
683	{	844	{
684	int size;	845	int size;
685		846
686	X_LOCK (reslock);	847	X_LOCK (EIO_POOL->reslock);
687	size = res_queue.size;	848	size = EIO_POOL->res_queue.size;
688	X_UNLOCK (reslock);	849	X_UNLOCK (EIO_POOL->reslock);
689		850
690	if (size)	851	if (size)
691	return;	852	return;
692		853
693	etp_maybe_start_thread ();	854	etp_maybe_start_thread (EIO_POOL);
694		855
695	s_epipe_wait (&respipe);	856	s_epipe_wait (&respipe);
696	}	857	}
697	}	858	}
698		859
699	static int poll_cb (void)	860	static int
		861	poll_cb (void)
700	{	862	{
701	for (;;)	863	for (;;)
702	{	864	{
703	int res = eio_poll ();	865	int res = eio_poll ();
704		866
…		…
710		872
711	poll_wait ();	873	poll_wait ();
712	}	874	}
713	}	875	}
714		876
715	static void atfork_child (void)	877	static void ecb_cold
		878	reinit (void)
716	{	879	{
717	create_respipe ();	880	create_respipe ();
		881
		882	if (eio_init (want_poll, done_poll) < 0)
		883	croak ("IO::AIO: unable to initialise eio library");
718	}	884	}
719		885
720	/*****************************************************************************/	886	/*****************************************************************************/
721		887
722	#if !_POSIX_MAPPED_FILES	888	static SV *
723	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
724	# define munmap(addr,length) (errno = ENOSYS, -1)
725	#endif
726
727	#if !_POSIX_MEMORY_PROTECTION
728	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
729	# define PROT_NONE 0
730	# define PROT_WRITE 0
731	# define MAP_PRIVATE 0
732	# define MAP_SHARED 0
733	# define MAP_FIXED 0
734	#endif
735
736	#define MMAP_MAGIC PERL_MAGIC_ext
737
738	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
739	{
740	int old_errno = errno;
741	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
742	errno = old_errno;
743
744	mg->mg_obj = 0; /* just in case */
745
746	SvREADONLY_off (sv);
747
748	if (SvPVX (sv) != mg->mg_ptr)
749	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
750
751	SvCUR_set (sv, 0);
752	SvPVX (sv) = 0;
753	SvOK_off (sv);
754
755	return 0;
756	}
757
758	static MGVTBL mmap_vtbl = {
759	0, 0, 0, 0, mmap_free
760	};
761
762	/*****************************************************************************/
763
764	static SV * get_cb (SV *cb_sv)	889	get_cb (SV *cb_sv)
765	{	890	{
766	SvGETMAGIC (cb_sv);	891	SvGETMAGIC (cb_sv);
767	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	892	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
768	}	893	}
769		894
		895	static aio_req ecb_noinline
		896	dreq (SV *callback)
		897	{
		898	SV *cb_cv;
		899	aio_req req;
		900	int req_pri = next_pri;
		901	next_pri = EIO_PRI_DEFAULT;
		902
		903	cb_cv = get_cb (callback);
		904
		905	req = calloc (sizeof (*req), 1);
		906	if (!req)
		907	croak ("out of memory during eio_req allocation");
		908
		909	req->callback = SvREFCNT_inc (cb_cv);
		910	req->pri = req_pri;
		911
		912	return req;
		913	}
		914
770	#define dREQ \	915	#define dREQ \
771	SV *cb_cv; \	916	aio_req req = dreq (callback); \
772	aio_req req; \
773	int req_pri = next_pri; \
774	next_pri = EIO_PRI_DEFAULT; \
775	\
776	cb_cv = get_cb (callback); \
777	\
778	Newz (0, req, 1, eio_req); \
779	if (!req) \
780	croak ("out of memory during eio_req allocation"); \
781	\
782	req->callback = SvREFCNT_inc (cb_cv); \
783	req->pri = req_pri
784		917
785	#define REQ_SEND \	918	#define REQ_SEND \
786	PUTBACK; \	919	PUTBACK; \
787	req_submit (req); \	920	req_submit (req); \
788	SPAGAIN; \	921	SPAGAIN; \
789	\	922	\
790	if (GIMME_V != G_VOID) \	923	if (GIMME_V != G_VOID) \
791	XPUSHs (req_sv (req, aio_req_stash));	924	XPUSHs (req_sv (req, aio_req_stash));
792		925
		926	ecb_inline void
		927	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		928	{
		929	if (expect_false (SvROK (path)))
		930	{
		931	SV *rv = SvRV (path);
		932	SV *wdob;
		933
		934	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		935	{
		936	path = AvARRAY (rv)[1];
		937	wdob = AvARRAY (rv)[0];
		938
		939	if (SvOK (wdob))
		940	{
		941	*wd = SvAIO_WD (wdob);
		942	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		943	}
		944	else
		945	*wd = EIO_INVALID_WD;
		946	}
		947	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		948	{
		949	*wd = (aio_wd)(long)SvIVX (rv);
		950	*wdsv = SvREFCNT_inc_NN (rv);
		951	*ptr = ".";
		952	return; /* path set to "." */
		953	}
		954	else
		955	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		956	}
		957
		958	*pathsv = newSVsv (path);
		959	*ptr = SvPVbyte_nolen (*pathsv);
		960	}
		961
		962	static void ecb_noinline
		963	req_set_path1 (aio_req req, SV *path)
		964	{
		965	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		966	}
		967
		968	static void ecb_noinline
		969	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		970	{
		971	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		972
		973	switch (SvTYPE (rv))
		974	{
		975	case SVt_PVIO:
		976	case SVt_PVLV:
		977	case SVt_PVGV:
		978	req->type = type_fh;
		979	req->sv1 = newSVsv (fh_or_path);
		980	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		981	break;
		982
		983	default:
		984	req->type = type_path;
		985	req_set_path1 (req, fh_or_path);
		986	break;
		987	}
		988	}
		989
		990	/*****************************************************************************/
		991
		992	static void
		993	ts_set (struct timespec *ts, NV value)
		994	{
		995	ts->tv_sec = value;
		996	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		997	}
		998
		999	static NV
		1000	ts_get (const struct timespec *ts)
		1001	{
		1002	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1003	}
		1004
		1005	/*****************************************************************************/
		1006
		1007	XS(boot_IO__AIO) ecb_cold;
		1008
793	MODULE = IO::AIO PACKAGE = IO::AIO	1009	MODULE = IO::AIO PACKAGE = IO::AIO
794		1010
795	PROTOTYPES: ENABLE	1011	PROTOTYPES: ENABLE
796		1012
797	BOOT:	1013	BOOT:
…		…
801	IV iv;	1017	IV iv;
802	} *civ, const_iv[] = {	1018	} *civ, const_iv[] = {
803	# define const_niv(name, value) { # name, (IV) value },	1019	# define const_niv(name, value) { # name, (IV) value },
804	# define const_iv(name) { # name, (IV) name },	1020	# define const_iv(name) { # name, (IV) name },
805	# define const_eio(name) { # name, (IV) EIO_ ## name },	1021	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1022
		1023	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1024	/* the first block can be undef if missing */
		1025	const_iv (ENOSYS)
806	const_iv (EXDEV)	1026	const_iv (EXDEV)
807	const_iv (ENOSYS)	1027	const_iv (EBADR)
		1028
		1029	/* for lseek */
		1030	const_iv (SEEK_DATA)
		1031	const_iv (SEEK_HOLE)
		1032
		1033	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1034	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1035	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1036	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1037	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1038	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1039
		1040	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1041	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1042	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1043	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1044	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1045
		1046	/* the second block will be 0 when missing */
808	const_iv (O_RDONLY)	1047	const_iv (O_RDONLY)
809	const_iv (O_WRONLY)	1048	const_iv (O_WRONLY)
810	const_iv (O_RDWR)	1049	const_iv (O_RDWR)
811	const_iv (O_CREAT)	1050	const_iv (O_CREAT)
812	const_iv (O_TRUNC)	1051	const_iv (O_TRUNC)
…		…
825	const_iv (O_SEARCH)	1064	const_iv (O_SEARCH)
826	const_iv (O_DIRECTORY)	1065	const_iv (O_DIRECTORY)
827	const_iv (O_DSYNC)	1066	const_iv (O_DSYNC)
828	const_iv (O_RSYNC)	1067	const_iv (O_RSYNC)
829	const_iv (O_SYNC)	1068	const_iv (O_SYNC)
		1069	const_iv (O_PATH)
		1070	const_iv (O_TMPFILE)
830	const_iv (O_TTY_INIT)	1071	const_iv (O_TTY_INIT)
831		1072
832	const_iv (S_IFIFO)	1073	const_iv (S_IFIFO)
833	const_iv (S_IFCHR)	1074	const_iv (S_IFCHR)
834	const_iv (S_IFBLK)	1075	const_iv (S_IFBLK)
…		…
836	const_iv (S_IFREG)	1077	const_iv (S_IFREG)
837	const_iv (S_IFDIR)	1078	const_iv (S_IFDIR)
838	const_iv (S_IFWHT)	1079	const_iv (S_IFWHT)
839	const_iv (S_IFSOCK)	1080	const_iv (S_IFSOCK)
840	const_iv (S_IFMT)	1081	const_iv (S_IFMT)
841
842	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
843	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
844	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
845	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
846	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
847	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
848
849	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
850	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
851	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
852	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
853	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
854		1082
855	const_iv (ST_RDONLY)	1083	const_iv (ST_RDONLY)
856	const_iv (ST_NOSUID)	1084	const_iv (ST_NOSUID)
857	const_iv (ST_NODEV)	1085	const_iv (ST_NODEV)
858	const_iv (ST_NOEXEC)	1086	const_iv (ST_NOEXEC)
…		…
868	const_iv (PROT_NONE)	1096	const_iv (PROT_NONE)
869	const_iv (PROT_EXEC)	1097	const_iv (PROT_EXEC)
870	const_iv (PROT_READ)	1098	const_iv (PROT_READ)
871	const_iv (PROT_WRITE)	1099	const_iv (PROT_WRITE)
872		1100
873	/*const_iv (MAP_FIXED)*/
874	const_iv (MAP_PRIVATE)	1101	const_iv (MAP_PRIVATE)
875	const_iv (MAP_SHARED)	1102	const_iv (MAP_SHARED)
		1103	const_iv (MAP_FIXED)
876	const_iv (MAP_ANONYMOUS)	1104	const_iv (MAP_ANONYMOUS)
877		1105
878	/* linuxish */	1106	/* linuxish */
879	const_iv (MAP_HUGETLB)
880	const_iv (MAP_LOCKED)	1107	const_iv (MAP_LOCKED)
881	const_iv (MAP_NORESERVE)	1108	const_iv (MAP_NORESERVE)
882	const_iv (MAP_POPULATE)	1109	const_iv (MAP_POPULATE)
883	const_iv (MAP_NONBLOCK)	1110	const_iv (MAP_NONBLOCK)
		1111	const_iv (MAP_GROWSDOWN)
		1112	const_iv (MAP_32BIT)
		1113	const_iv (MAP_HUGETLB)
		1114	const_iv (MAP_STACK)
		1115
		1116	const_iv (MREMAP_MAYMOVE)
		1117	const_iv (MREMAP_FIXED)
		1118
		1119	const_iv (F_DUPFD_CLOEXEC)
		1120
		1121	const_iv (F_OFD_GETLK)
		1122	const_iv (F_OFD_SETLK)
		1123	const_iv (F_OFD_GETLKW)
		1124
		1125	const_iv (FIFREEZE)
		1126	const_iv (FITHAW)
		1127	const_iv (FITRIM)
		1128	const_iv (FICLONE)
		1129	const_iv (FICLONERANGE)
		1130	const_iv (FIDEDUPERANGE)
		1131
		1132	const_iv (FS_IOC_GETFLAGS)
		1133	const_iv (FS_IOC_SETFLAGS)
		1134	const_iv (FS_IOC_GETVERSION)
		1135	const_iv (FS_IOC_SETVERSION)
		1136	const_iv (FS_IOC_FIEMAP)
		1137	const_iv (FS_IOC_FSGETXATTR)
		1138	const_iv (FS_IOC_FSSETXATTR)
		1139	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1140	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1141	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1142
		1143	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1144
		1145	const_iv (FS_SECRM_FL)
		1146	const_iv (FS_UNRM_FL)
		1147	const_iv (FS_COMPR_FL)
		1148	const_iv (FS_SYNC_FL)
		1149	const_iv (FS_IMMUTABLE_FL)
		1150	const_iv (FS_APPEND_FL)
		1151	const_iv (FS_NODUMP_FL)
		1152	const_iv (FS_NOATIME_FL)
		1153	const_iv (FS_DIRTY_FL)
		1154	const_iv (FS_COMPRBLK_FL)
		1155	const_iv (FS_NOCOMP_FL)
		1156	const_iv (FS_ENCRYPT_FL)
		1157	const_iv (FS_BTREE_FL)
		1158	const_iv (FS_INDEX_FL)
		1159	const_iv (FS_JOURNAL_DATA_FL)
		1160	const_iv (FS_NOTAIL_FL)
		1161	const_iv (FS_DIRSYNC_FL)
		1162	const_iv (FS_TOPDIR_FL)
		1163	const_iv (FS_FL_USER_MODIFIABLE)
		1164
		1165	const_iv (FS_XFLAG_REALTIME)
		1166	const_iv (FS_XFLAG_PREALLOC)
		1167	const_iv (FS_XFLAG_IMMUTABLE)
		1168	const_iv (FS_XFLAG_APPEND)
		1169	const_iv (FS_XFLAG_SYNC)
		1170	const_iv (FS_XFLAG_NOATIME)
		1171	const_iv (FS_XFLAG_NODUMP)
		1172	const_iv (FS_XFLAG_RTINHERIT)
		1173	const_iv (FS_XFLAG_PROJINHERIT)
		1174	const_iv (FS_XFLAG_NOSYMLINKS)
		1175	const_iv (FS_XFLAG_EXTSIZE)
		1176	const_iv (FS_XFLAG_EXTSZINHERIT)
		1177	const_iv (FS_XFLAG_NODEFRAG)
		1178	const_iv (FS_XFLAG_FILESTREAM)
		1179	const_iv (FS_XFLAG_DAX)
		1180	const_iv (FS_XFLAG_HASATTR)
		1181
		1182	const_iv (FIEMAP_FLAG_SYNC)
		1183	const_iv (FIEMAP_FLAG_XATTR)
		1184	const_iv (FIEMAP_FLAGS_COMPAT)
		1185	const_iv (FIEMAP_EXTENT_LAST)
		1186	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1187	const_iv (FIEMAP_EXTENT_DELALLOC)
		1188	const_iv (FIEMAP_EXTENT_ENCODED)
		1189	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1190	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1191	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1192	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1193	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1194	const_iv (FIEMAP_EXTENT_MERGED)
		1195	const_iv (FIEMAP_EXTENT_SHARED)
		1196
		1197	const_iv (SPLICE_F_MOVE)
		1198	const_iv (SPLICE_F_NONBLOCK)
		1199	const_iv (SPLICE_F_MORE)
		1200	const_iv (SPLICE_F_GIFT)
		1201
		1202	const_iv (EFD_CLOEXEC)
		1203	const_iv (EFD_NONBLOCK)
		1204	const_iv (EFD_SEMAPHORE)
		1205
		1206	const_iv (CLOCK_REALTIME)
		1207	const_iv (CLOCK_MONOTONIC)
		1208	const_iv (CLOCK_BOOTTIME)
		1209	const_iv (CLOCK_REALTIME_ALARM)
		1210	const_iv (CLOCK_BOOTTIME_ALARM)
		1211
		1212	const_iv (TFD_NONBLOCK)
		1213	const_iv (TFD_CLOEXEC)
		1214
		1215	const_iv (TFD_TIMER_ABSTIME)
		1216	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1217
		1218	/* these are libeio constants, and are independent of gendef0 */
		1219	const_eio (SEEK_SET)
		1220	const_eio (SEEK_CUR)
		1221	const_eio (SEEK_END)
884		1222
885	const_eio (MCL_FUTURE)	1223	const_eio (MCL_FUTURE)
886	const_eio (MCL_CURRENT)	1224	const_eio (MCL_CURRENT)
887		1225
888	const_eio (MS_ASYNC)	1226	const_eio (MS_ASYNC)
…		…
894	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1232	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
895	const_eio (SYNC_FILE_RANGE_WRITE)	1233	const_eio (SYNC_FILE_RANGE_WRITE)
896	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1234	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
897		1235
898	const_eio (FALLOC_FL_KEEP_SIZE)	1236	const_eio (FALLOC_FL_KEEP_SIZE)
		1237	const_eio (FALLOC_FL_PUNCH_HOLE)
		1238	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1239	const_eio (FALLOC_FL_ZERO_RANGE)
		1240	const_eio (FALLOC_FL_INSERT_RANGE)
		1241	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1242
		1243	const_eio (RENAME_NOREPLACE)
		1244	const_eio (RENAME_EXCHANGE)
		1245	const_eio (RENAME_WHITEOUT)
899		1246
900	const_eio (READDIR_DENTS)	1247	const_eio (READDIR_DENTS)
901	const_eio (READDIR_DIRS_FIRST)	1248	const_eio (READDIR_DIRS_FIRST)
902	const_eio (READDIR_STAT_ORDER)	1249	const_eio (READDIR_STAT_ORDER)
903	const_eio (READDIR_FOUND_UNKNOWN)	1250	const_eio (READDIR_FOUND_UNKNOWN)
…		…
914	};	1261	};
915		1262
916	aio_stash = gv_stashpv ("IO::AIO" , 1);	1263	aio_stash = gv_stashpv ("IO::AIO" , 1);
917	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1264	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
918	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1265	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1266	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
919		1267
920	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1268	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
921	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1269	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
922		1270
923	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1271	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
924		1272
925	create_respipe ();	1273	reinit ();
926
927	if (eio_init (want_poll, done_poll) < 0)
928	croak ("IO::AIO: unable to initialise eio library");
929
930	/* atfork child called in fifo order, so before eio's handler */
931	X_THREAD_ATFORK (0, 0, atfork_child);
932	}	1274	}
		1275
		1276	void
		1277	reinit ()
		1278	PROTOTYPE:
933		1279
934	void	1280	void
935	max_poll_reqs (unsigned int nreqs)	1281	max_poll_reqs (unsigned int nreqs)
936	PROTOTYPE: $	1282	PROTOTYPE: $
937	CODE:	1283	CODE:
…		…
972	PROTOTYPE: $	1318	PROTOTYPE: $
973	CODE:	1319	CODE:
974	max_outstanding = maxreqs;	1320	max_outstanding = maxreqs;
975		1321
976	void	1322	void
977	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1323	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
978	PPCODE:	1324	PPCODE:
979	{	1325	{
980	dREQ;	1326	dREQ;
981		1327
		1328	req->type = EIO_WD_OPEN;
		1329	req_set_path1 (req, pathname);
		1330
		1331	REQ_SEND;
		1332	}
		1333
		1334	void
		1335	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1336	PPCODE:
		1337	{
		1338	dREQ;
		1339
982	req->type = EIO_OPEN;	1340	req->type = EIO_OPEN;
983	req->sv1 = newSVsv (pathname);	1341	req_set_path1 (req, pathname);
984	req->ptr1 = SvPVbyte_nolen (req->sv1);
985	req->int1 = flags;	1342	req->int1 = flags;
986	req->int2 = mode;	1343	req->int2 = mode;
987		1344
988	REQ_SEND;	1345	REQ_SEND;
989	}	1346	}
990		1347
991	void	1348	void
992	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1349	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
993	ALIAS:	1350	ALIAS:
994	aio_fsync = EIO_FSYNC	1351	aio_fsync = EIO_FSYNC
995	aio_fdatasync = EIO_FDATASYNC	1352	aio_fdatasync = EIO_FDATASYNC
		1353	aio_syncfs = EIO_SYNCFS
996	PPCODE:	1354	PPCODE:
997	{	1355	{
998	int fd = s_fileno_croak (fh, 0);	1356	int fd = s_fileno_croak (fh, 0);
999	dREQ;	1357	dREQ;
1000		1358
1001	req->type = ix;	1359	req->type = ix;
1002	req->sv1 = newSVsv (fh);	1360	req->sv1 = newSVsv (fh);
1003	req->int1 = fd;	1361	req->int1 = fd;
1004		1362
1005	REQ_SEND (req);	1363	REQ_SEND;
1006	}	1364	}
1007		1365
1008	void	1366	void
1009	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1367	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
1010	PPCODE:	1368	PPCODE:
1011	{	1369	{
1012	int fd = s_fileno_croak (fh, 0);	1370	int fd = s_fileno_croak (fh, 0);
1013	dREQ;	1371	dREQ;
1014		1372
1015	req->type = EIO_SYNC_FILE_RANGE;	1373	req->type = EIO_SYNC_FILE_RANGE;
1016	req->sv1 = newSVsv (fh);	1374	req->sv1 = newSVsv (fh);
1017	req->int1 = fd;	1375	req->int1 = fd;
1018	req->offs = offset;	1376	req->offs = offset;
1019	req->size = nbytes;	1377	req->size = nbytes;
1020	req->int2 = flags;	1378	req->int2 = flags;
1021		1379
1022	REQ_SEND (req);	1380	REQ_SEND;
1023	}	1381	}
1024		1382
1025	void	1383	void
1026	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1384	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1027	PPCODE:	1385	PPCODE:
1028	{	1386	{
1029	int fd = s_fileno_croak (fh, 0);	1387	int fd = s_fileno_croak (fh, 0);
1030	dREQ;	1388	dREQ;
1031		1389
1032	req->type = EIO_FALLOCATE;	1390	req->type = EIO_FALLOCATE;
1033	req->sv1 = newSVsv (fh);	1391	req->sv1 = newSVsv (fh);
1034	req->int1 = fd;	1392	req->int1 = fd;
1035	req->int2 = mode;	1393	req->int2 = mode;
1036	req->offs = offset;	1394	req->offs = offset;
1037	req->size = len;	1395	req->size = len;
1038		1396
1039	REQ_SEND (req);	1397	REQ_SEND;
1040	}	1398	}
1041		1399
1042	void	1400	void
1043	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1401	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1044	PPCODE:	1402	PPCODE:
1045	{	1403	{
1046	static int close_fd = -1; /* dummy fd to close fds via dup2 */	1404	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1047	int fd = s_fileno_croak (fh, 0);	1405	int fd = s_fileno_croak (fh, 0);
1048	dREQ;	1406	dREQ;
1049		1407
1050	if (expect_false (close_fd < 0))	1408	if (expect_false (close_fd < 0))
1051	{	1409	{
1052	int pipefd [2];	1410	int pipefd [2];
…		…
1068	req->type = EIO_DUP2;	1426	req->type = EIO_DUP2;
1069	req->int1 = close_fd;	1427	req->int1 = close_fd;
1070	req->sv2 = newSVsv (fh);	1428	req->sv2 = newSVsv (fh);
1071	req->int2 = fd;	1429	req->int2 = fd;
1072		1430
1073	REQ_SEND (req);	1431	REQ_SEND;
1074	}	1432	}
1075		1433
1076	void	1434	void
		1435	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1436	PPCODE:
		1437	{
		1438	int fd = s_fileno_croak (fh, 0);
		1439	dREQ;
		1440
		1441	req->type = EIO_SEEK;
		1442	req->sv1 = newSVsv (fh);
		1443	req->int1 = fd;
		1444	req->offs = SvVAL64 (offset);
		1445	req->int2 = whence;
		1446
		1447	REQ_SEND;
		1448	}
		1449
		1450	void
1077	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1451	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1078	ALIAS:	1452	ALIAS:
1079	aio_read = EIO_READ	1453	aio_read = EIO_READ
1080	aio_write = EIO_WRITE	1454	aio_write = EIO_WRITE
1081	PPCODE:	1455	PPCODE:
1082	{	1456	{
…		…
1098	len = svlen - dataoffset;	1472	len = svlen - dataoffset;
1099	}	1473	}
1100	else	1474	else
1101	{	1475	{
1102	/* read: check type and grow scalar as necessary */	1476	/* read: check type and grow scalar as necessary */
1103	SvUPGRADE (data, SVt_PV);	1477	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1104	svptr = SvGROW (data, len + dataoffset + 1);	1478	svptr = sv_grow (data, len + dataoffset + 1);
		1479	else if (SvCUR (data) < len + dataoffset)
		1480	croak ("length + dataoffset outside of scalar, and cannot grow");
1105	}	1481	}
1106		1482
1107	{	1483	{
1108	dREQ;	1484	dREQ;
1109		1485
…		…
1125	REQ_SEND;	1501	REQ_SEND;
1126	}	1502	}
1127	}	1503	}
1128		1504
1129	void	1505	void
		1506	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1507	ALIAS:
		1508	aio_ioctl = EIO_IOCTL
		1509	aio_fcntl = EIO_FCNTL
		1510	PPCODE:
		1511	{
		1512	int fd = s_fileno_croak (fh, 0);
		1513	char *svptr;
		1514
		1515	if (SvPOK (arg) || !SvNIOK (arg))
		1516	{
		1517	STRLEN svlen;
		1518	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1519	#ifdef IOCPARM_LEN
		1520	STRLEN need = IOCPARM_LEN (request);
		1521	#else
		1522	STRLEN need = 256;
		1523	#endif
		1524
		1525	if (svlen < need)
		1526	svptr = SvGROW (arg, need);
		1527	}
		1528	else
		1529	svptr = (char *)SvIV (arg);
		1530
		1531	{
		1532	dREQ;
		1533
		1534	req->type = ix;
		1535	req->sv1 = newSVsv (fh);
		1536	req->int1 = fd;
		1537	req->int2 = (long)request;
		1538	req->sv2 = SvREFCNT_inc (arg);
		1539	req->ptr2 = svptr;
		1540
		1541	REQ_SEND;
		1542	}
		1543	}
		1544
		1545	void
1130	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1546	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1131	ALIAS:	1547	ALIAS:
1132	aio_readlink = EIO_READLINK	1548	aio_readlink = EIO_READLINK
1133	aio_realpath = EIO_REALPATH	1549	aio_realpath = EIO_REALPATH
1134	PPCODE:	1550	PPCODE:
1135	{	1551	{
1136	dREQ;	1552	dREQ;
1137		1553
1138	req->type = ix;	1554	req->type = ix;
1139	req->sv1 = newSVsv (path);	1555	req_set_path1 (req, pathname);
1140	req->ptr1 = SvPVbyte_nolen (req->sv1);
1141		1556
1142	REQ_SEND;	1557	REQ_SEND;
1143	}	1558	}
1144		1559
1145	void	1560	void
1146	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1561	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1147	PPCODE:	1562	PPCODE:
1148	{	1563	{
1149	int ifd = s_fileno_croak (in_fh , 0);	1564	int ifd = s_fileno_croak (in_fh , 0);
1150	int ofd = s_fileno_croak (out_fh, 1);	1565	int ofd = s_fileno_croak (out_fh, 1);
1151	dREQ;	1566	dREQ;
1152		1567
1153	req->type = EIO_SENDFILE;	1568	req->type = EIO_SENDFILE;
1154	req->sv1 = newSVsv (out_fh);	1569	req->sv1 = newSVsv (out_fh);
1155	req->int1 = ofd;	1570	req->int1 = ofd;
…		…
1160		1575
1161	REQ_SEND;	1576	REQ_SEND;
1162	}	1577	}
1163		1578
1164	void	1579	void
1165	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1580	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1166	PPCODE:	1581	PPCODE:
1167	{	1582	{
1168	int fd = s_fileno_croak (fh, 0);	1583	int fd = s_fileno_croak (fh, 0);
1169	dREQ;	1584	dREQ;
1170		1585
1171	req->type = EIO_READAHEAD;	1586	req->type = EIO_READAHEAD;
1172	req->sv1 = newSVsv (fh);	1587	req->sv1 = newSVsv (fh);
1173	req->int1 = fd;	1588	req->int1 = fd;
…		…
1176		1591
1177	REQ_SEND;	1592	REQ_SEND;
1178	}	1593	}
1179		1594
1180	void	1595	void
1181	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1596	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1182	ALIAS:	1597	ALIAS:
1183	aio_stat = EIO_STAT	1598	aio_stat = EIO_STAT
1184	aio_lstat = EIO_LSTAT	1599	aio_lstat = EIO_LSTAT
1185	aio_statvfs = EIO_STATVFS	1600	aio_statvfs = EIO_STATVFS
1186	PPCODE:	1601	PPCODE:
1187	{	1602	{
1188	dREQ;	1603	dREQ;
1189		1604
1190	req->sv1 = newSVsv (fh_or_path);	1605	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1191
1192	if (SvPOK (req->sv1))
1193	{
1194	req->type = ix;
1195	req->ptr1 = SvPVbyte_nolen (req->sv1);
1196	}
1197	else
1198	{
1199	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1200	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1201	}
1202		1606
1203	REQ_SEND;	1607	REQ_SEND;
1204	}	1608	}
1205		1609
1206	UV	1610	UV
1207	major (UV dev)	1611	major (UV dev)
1208	ALIAS:	1612	ALIAS:
1209	minor = 1	1613	minor = 1
1210	CODE:	1614	CODE:
1211	RETVAL = ix ? major (dev) : minor (dev);	1615	RETVAL = ix ? minor (dev) : major (dev);
1212	OUTPUT:	1616	OUTPUT:
1213	RETVAL	1617	RETVAL
1214		1618
1215	UV	1619	UV
1216	makedev (UV maj, UV min)	1620	makedev (UV maj, UV min)
…		…
1218	RETVAL = makedev (maj, min);	1622	RETVAL = makedev (maj, min);
1219	OUTPUT:	1623	OUTPUT:
1220	RETVAL	1624	RETVAL
1221		1625
1222	void	1626	void
1223	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1627	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1224	PPCODE:	1628	PPCODE:
1225	{	1629	{
1226	dREQ;	1630	dREQ;
1227		1631
1228	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1632	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1229	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1633	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1230	req->sv1 = newSVsv (fh_or_path);	1634	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1231
1232	if (SvPOK (req->sv1))
1233	{
1234	req->type = EIO_UTIME;
1235	req->ptr1 = SvPVbyte_nolen (req->sv1);
1236	}
1237	else
1238	{
1239	req->type = EIO_FUTIME;
1240	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1241	}
1242		1635
1243	REQ_SEND;	1636	REQ_SEND;
1244	}	1637	}
1245		1638
1246	void	1639	void
1247	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1640	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1248	PPCODE:	1641	PPCODE:
1249	{	1642	{
1250	dREQ;	1643	dREQ;
1251		1644
1252	req->sv1 = newSVsv (fh_or_path);
1253	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1645	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1254		1646	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1255	if (SvPOK (req->sv1))
1256	{
1257	req->type = EIO_TRUNCATE;
1258	req->ptr1 = SvPVbyte_nolen (req->sv1);
1259	}
1260	else
1261	{
1262	req->type = EIO_FTRUNCATE;
1263	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1264	}
1265		1647
1266	REQ_SEND;	1648	REQ_SEND;
1267	}	1649	}
1268		1650
1269	void	1651	void
1270	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1652	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1271	ALIAS:
1272	aio_chmod = EIO_CHMOD
1273	aio_mkdir = EIO_MKDIR
1274	PPCODE:	1653	PPCODE:
1275	{	1654	{
1276	dREQ;	1655	dREQ;
1277		1656
1278	req->int2 = mode;	1657	req->int2 = mode;
1279	req->sv1 = newSVsv (fh_or_path);	1658	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1280
1281	if (SvPOK (req->sv1))
1282	{
1283	req->type = ix;
1284	req->ptr1 = SvPVbyte_nolen (req->sv1);
1285	}
1286	else
1287	{
1288	req->type = EIO_FCHMOD;
1289	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1290	}
1291		1659
1292	REQ_SEND;	1660	REQ_SEND;
1293	}	1661	}
1294		1662
1295	void	1663	void
1296	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1664	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1297	PPCODE:	1665	PPCODE:
1298	{	1666	{
1299	dREQ;	1667	dREQ;
1300		1668
1301	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1669	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1302	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1670	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1303	req->sv1 = newSVsv (fh_or_path);	1671	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1304
1305	if (SvPOK (req->sv1))
1306	{
1307	req->type = EIO_CHOWN;
1308	req->ptr1 = SvPVbyte_nolen (req->sv1);
1309	}
1310	else
1311	{
1312	req->type = EIO_FCHOWN;
1313	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1314	}
1315		1672
1316	REQ_SEND;	1673	REQ_SEND;
1317	}	1674	}
1318		1675
1319	void	1676	void
1320	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1677	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1321	PPCODE:	1678	PPCODE:
1322	{	1679	{
1323	dREQ;	1680	dREQ;
1324		1681
1325	req->type = EIO_READDIR;	1682	req->type = EIO_READDIR;
1326	req->sv1 = newSVsv (pathname);
1327	req->ptr1 = SvPVbyte_nolen (req->sv1);
1328	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1683	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1329		1684
1330	if (flags & EIO_READDIR_DENTS)	1685	if (flags & EIO_READDIR_DENTS)
1331	req->int1 |= EIO_READDIR_CUSTOM2;	1686	req->int1 |= EIO_READDIR_CUSTOM2;
1332		1687
		1688	req_set_path1 (req, pathname);
		1689
1333	REQ_SEND;	1690	REQ_SEND;
1334	}	1691	}
1335		1692
1336	void	1693	void
		1694	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1695	PPCODE:
		1696	{
		1697	dREQ;
		1698
		1699	req->type = EIO_MKDIR;
		1700	req->int2 = mode;
		1701	req_set_path1 (req, pathname);
		1702
		1703	REQ_SEND;
		1704	}
		1705
		1706	void
1337	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1707	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1338	ALIAS:	1708	ALIAS:
1339	aio_unlink = EIO_UNLINK	1709	aio_unlink = EIO_UNLINK
1340	aio_rmdir = EIO_RMDIR	1710	aio_rmdir = EIO_RMDIR
1341	aio_readdir = EIO_READDIR	1711	aio_readdir = EIO_READDIR
1342	PPCODE:	1712	PPCODE:
1343	{	1713	{
1344	dREQ;	1714	dREQ;
1345		1715
1346	req->type = ix;	1716	req->type = ix;
1347	req->sv1 = newSVsv (pathname);	1717	req_set_path1 (req, pathname);
1348	req->ptr1 = SvPVbyte_nolen (req->sv1);
1349		1718
1350	REQ_SEND;	1719	REQ_SEND;
1351	}	1720	}
1352		1721
1353	void	1722	void
1354	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1723	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1355	ALIAS:	1724	ALIAS:
1356	aio_link = EIO_LINK	1725	aio_link = EIO_LINK
1357	aio_symlink = EIO_SYMLINK	1726	aio_symlink = EIO_SYMLINK
1358	aio_rename = EIO_RENAME	1727	aio_rename = EIO_RENAME
1359	PPCODE:	1728	PPCODE:
1360	{	1729	{
		1730	eio_wd wd2 = 0;
1361	dREQ;	1731	dREQ;
1362		1732
1363	req->type = ix;	1733	req->type = ix;
1364	req->sv1 = newSVsv (oldpath);	1734	req_set_path1 (req, oldpath);
1365	req->ptr1 = SvPVbyte_nolen (req->sv1);	1735	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1366	req->sv2 = newSVsv (newpath);	1736	req->int3 = (long)wd2;
1367	req->ptr2 = SvPVbyte_nolen (req->sv2);
1368		1737
1369	REQ_SEND;	1738	REQ_SEND;
1370	}	1739	}
1371		1740
1372	void	1741	void
		1742	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1743	PPCODE:
		1744	{
		1745	eio_wd wd2 = 0;
		1746	dREQ;
		1747
		1748	req->type = EIO_RENAME;
		1749	req_set_path1 (req, oldpath);
		1750	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1751	req->int2 = flags;
		1752	req->int3 = (long)wd2;
		1753
		1754	REQ_SEND;
		1755	}
		1756
		1757	void
1373	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1758	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1374	PPCODE:	1759	PPCODE:
1375	{	1760	{
1376	dREQ;	1761	dREQ;
1377		1762
1378	req->type = EIO_MKNOD;	1763	req->type = EIO_MKNOD;
1379	req->sv1 = newSVsv (pathname);
1380	req->ptr1 = SvPVbyte_nolen (req->sv1);
1381	req->int2 = (mode_t)mode;	1764	req->int2 = (mode_t)mode;
1382	req->offs = dev;	1765	req->offs = dev;
		1766	req_set_path1 (req, pathname);
1383		1767
1384	REQ_SEND;	1768	REQ_SEND;
1385	}	1769	}
1386		1770
1387	void	1771	void
1388	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1772	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1389	ALIAS:	1773	ALIAS:
1390	aio_mtouch = EIO_MTOUCH	1774	aio_mtouch = EIO_MTOUCH
1391	aio_msync = EIO_MSYNC	1775	aio_msync = EIO_MSYNC
1392	PPCODE:	1776	PPCODE:
1393	{	1777	{
1394	STRLEN svlen;	1778	STRLEN svlen;
1395	char *svptr = SvPVbyte (data, svlen);	1779	char *svptr = SvPVbyte (data, svlen);
1396	UV len = SvUV (length);	1780	UV len = SvUV (length);
		1781
		1782	if (flags < 0)
		1783	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1397		1784
1398	if (offset < 0)	1785	if (offset < 0)
1399	offset += svlen;	1786	offset += svlen;
1400		1787
1401	if (offset < 0 || offset > svlen)	1788	if (offset < 0 || offset > svlen)
…		…
1416	REQ_SEND;	1803	REQ_SEND;
1417	}	1804	}
1418	}	1805	}
1419		1806
1420	void	1807	void
1421	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1808	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1422	PPCODE:	1809	PPCODE:
1423	{	1810	{
1424	STRLEN svlen;	1811	STRLEN svlen;
1425	char *svptr = SvPVbyte (data, svlen);	1812	char *svptr = SvPVbyte (data, svlen);
1426	UV len = SvUV (length);	1813	UV len = SvUV (length);
…		…
1445	REQ_SEND;	1832	REQ_SEND;
1446	}	1833	}
1447	}	1834	}
1448		1835
1449	void	1836	void
1450	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1837	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1451	PPCODE:	1838	PPCODE:
1452	{	1839	{
1453	dREQ;	1840	dREQ;
1454		1841
1455	req->type = EIO_MLOCKALL;	1842	req->type = EIO_MLOCKALL;
…		…
1457		1844
1458	REQ_SEND;	1845	REQ_SEND;
1459	}	1846	}
1460		1847
1461	void	1848	void
		1849	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1850	PPCODE:
		1851	{
		1852	int fd = s_fileno_croak (fh, 0);
		1853	dREQ;
		1854
		1855	req->type = EIO_CUSTOM;
		1856	req->sv1 = newSVsv (fh);
		1857	req->int1 = fd;
		1858
		1859	req->feed = fiemap;
		1860	#if HAVE_FIEMAP
		1861	/* keep our fingers crossed that the next two types are 64 bit */
		1862	req->offs = start;
		1863	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1864	req->int2 = flags;
		1865	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1866	#endif
		1867
		1868	REQ_SEND;
		1869	}
		1870
		1871	void
		1872	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1873	PPCODE:
		1874	{
		1875	char *svptr = 0;
		1876
		1877	sv_clear_foreign (data);
		1878
		1879	if (length) /* known length, directly read into scalar */
		1880	{
		1881	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1882	svptr = sv_grow (data, length + 1);
		1883	else if (SvCUR (data) < length)
		1884	croak ("length outside of scalar, and cannot grow");
		1885	else
		1886	svptr = SvPVbyte_nolen (data);
		1887	}
		1888
		1889	{
		1890	dREQ;
		1891
		1892	req->type = EIO_SLURP;
		1893	req_set_path1 (req, pathname);
		1894	req->offs = offset;
		1895	req->size = length;
		1896	req->sv2 = SvREFCNT_inc (data);
		1897	req->ptr2 = svptr;
		1898
		1899	if (!SvREADONLY (data))
		1900	{
		1901	SvREADONLY_on (data);
		1902	req->flags |= FLAG_SV2_RO_OFF;
		1903	}
		1904
		1905	REQ_SEND;
		1906	}
		1907	}
		1908
		1909	void
1462	aio_busy (double delay, SV *callback=&PL_sv_undef)	1910	aio_busy (double delay, SV *callback = &PL_sv_undef)
1463	PPCODE:	1911	PPCODE:
1464	{	1912	{
1465	dREQ;	1913	dREQ;
1466		1914
1467	req->type = EIO_BUSY;	1915	req->type = EIO_BUSY;
…		…
1469		1917
1470	REQ_SEND;	1918	REQ_SEND;
1471	}	1919	}
1472		1920
1473	void	1921	void
1474	aio_group (SV *callback=&PL_sv_undef)	1922	aio_group (SV *callback = &PL_sv_undef)
1475	PPCODE:	1923	PPCODE:
1476	{	1924	{
1477	dREQ;	1925	dREQ;
1478		1926
1479	req->type = EIO_GROUP;	1927	req->type = EIO_GROUP;
1480		1928
		1929	PUTBACK;
1481	req_submit (req);	1930	req_submit (req);
		1931	SPAGAIN;
		1932
1482	XPUSHs (req_sv (req, aio_grp_stash));	1933	XPUSHs (req_sv (req, aio_grp_stash));
1483	}	1934	}
1484		1935
1485	void	1936	void
1486	aio_nop (SV *callback=&PL_sv_undef)	1937	aio_nop (SV *callback = &PL_sv_undef)
1487	ALIAS:	1938	ALIAS:
1488	aio_nop = EIO_NOP	1939	aio_nop = EIO_NOP
1489	aio_sync = EIO_SYNC	1940	aio_sync = EIO_SYNC
1490	PPCODE:	1941	PPCODE:
1491	{	1942	{
…		…
1495		1946
1496	REQ_SEND;	1947	REQ_SEND;
1497	}	1948	}
1498		1949
1499	int	1950	int
1500	aioreq_pri (int pri = 0)	1951	aioreq_pri (int pri = NO_INIT)
1501	CODE:	1952	CODE:
1502	RETVAL = next_pri;	1953	RETVAL = next_pri;
1503	if (items > 0)	1954	if (items > 0)
1504	{	1955	{
1505	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1956	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1587	CODE:	2038	CODE:
1588	RETVAL = posix_fadvise (fh, offset, length, advice);	2039	RETVAL = posix_fadvise (fh, offset, length, advice);
1589	OUTPUT:	2040	OUTPUT:
1590	RETVAL	2041	RETVAL
1591		2042
1592	ssize_t	2043	IV
1593	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	2044	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1594	CODE:	2045	CODE:
1595	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2046	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1596	OUTPUT:	2047	OUTPUT:
1597	RETVAL	2048	RETVAL
1598		2049
1599	void	2050	void
1600	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2051	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1601	PPCODE:	2052	PPCODE:
1602	sv_unmagic (scalar, MMAP_MAGIC);	2053	sv_clear_foreign (scalar);
1603	{	2054	{
1604	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2055	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1605	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2056	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1606	if (addr == (void *)-1)	2057	if (addr == (void *)-1)
1607	XSRETURN_NO;	2058	XSRETURN_NO;
1608		2059
1609	sv_force_normal (scalar);	2060	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1610
1611	/* we store the length in mg_obj, as namlen is I32 :/ */
1612	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1613	->mg_obj = (SV *)length;
1614
1615	SvUPGRADE (scalar, SVt_PV); /* nop... */
1616		2061
1617	if (!(prot & PROT_WRITE))	2062	if (!(prot & PROT_WRITE))
1618	SvREADONLY_on (scalar);	2063	SvREADONLY_on (scalar);
1619		2064
1620	if (SvLEN (scalar))
1621	Safefree (SvPVX (scalar));
1622
1623	SvPVX (scalar) = (char *)addr;
1624	SvCUR_set (scalar, length);
1625	SvLEN_set (scalar, 0);
1626	SvPOK_only (scalar);
1627
1628	XSRETURN_YES;	2065	XSRETURN_YES;
1629	}	2066	}
1630		2067
1631	void	2068	void
1632	munmap (SV *scalar)	2069	munmap (SV *scalar)
1633	CODE:	2070	CODE:
1634	sv_unmagic (scalar, MMAP_MAGIC);	2071	sv_clear_foreign (scalar);
		2072
		2073	SV *
		2074	mremap (SV *scalar, STRLEN new_length, int flags = 0, IV new_address = 0)
		2075	CODE:
		2076	{
		2077	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2078	void *new;
		2079
		2080	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2081	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2082
		2083	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2084
		2085	RETVAL = &PL_sv_no;
		2086
		2087	if (new != (void *)-1)
		2088	{
		2089	RETVAL = new == (void *)mg->mg_ptr
		2090	? newSVpvn ("0 but true", 10)
		2091	: &PL_sv_yes;
		2092
		2093	mg->mg_ptr = (char *)new;
		2094	mg->mg_obj = (SV *)new_length;
		2095
		2096	SvPVX (scalar) = mg->mg_ptr;
		2097	SvCUR_set (scalar, new_length);
		2098	}
		2099	}
		2100	OUTPUT:
		2101	RETVAL
1635		2102
1636	int	2103	int
1637	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2104	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1638	ALIAS:	2105	ALIAS:
1639	mprotect = 1	2106	mprotect = 1
1640	CODE:	2107	CODE:
1641	{	2108	{
1642	STRLEN svlen;	2109	STRLEN svlen;
1643	void *addr = SvPVbyte (scalar, svlen);	2110	void *addr = SvPVbyte (scalar, svlen);
1644	size_t len = SvUV (length);	2111	STRLEN len = SvUV (length);
1645		2112
1646	if (offset < 0)	2113	if (offset < 0)
1647	offset += svlen;	2114	offset += svlen;
1648		2115
1649	if (offset < 0 || offset > svlen)	2116	if (offset < 0 || offset > svlen)
…		…
1663	}	2130	}
1664	OUTPUT:	2131	OUTPUT:
1665	RETVAL	2132	RETVAL
1666		2133
1667	int	2134	int
1668	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2135	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1669	CODE:	2136	CODE:
1670	{	2137	{
1671	STRLEN svlen;	2138	STRLEN svlen;
1672	void *addr = SvPVbyte (scalar, svlen);	2139	void *addr = SvPVbyte (scalar, svlen);
1673	size_t len = SvUV (length);	2140	size_t len = SvUV (length);
1674		2141
1675	if (offset < 0)	2142	if (offset < 0)
1676	offset += svlen;	2143	offset += svlen;
1677		2144
…		…
1684	addr = (void *)(((intptr_t)addr) + offset);	2151	addr = (void *)(((intptr_t)addr) + offset);
1685	eio_page_align (&addr, &len);	2152	eio_page_align (&addr, &len);
1686	#if _POSIX_MEMLOCK_RANGE	2153	#if _POSIX_MEMLOCK_RANGE
1687	RETVAL = munlock (addr, len);	2154	RETVAL = munlock (addr, len);
1688	#else	2155	#else
1689	RETVAL = ((errno = ENOSYS), -1);	2156	RETVAL = EIO_ENOSYS ();
1690	#endif	2157	#endif
1691	}	2158	}
1692	OUTPUT:	2159	OUTPUT:
1693	RETVAL	2160	RETVAL
1694		2161
…		…
1696	munlockall ()	2163	munlockall ()
1697	CODE:	2164	CODE:
1698	#if _POSIX_MEMLOCK	2165	#if _POSIX_MEMLOCK
1699	munlockall ();	2166	munlockall ();
1700	#else	2167	#else
1701	RETVAL = -1;	2168	RETVAL = EIO_ENOSYS ();
1702	errno = ENOSYS;
1703	#endif	2169	#endif
1704	OUTPUT:	2170	OUTPUT:
1705	RETVAL	2171	RETVAL
		2172
		2173	int
		2174	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2175	CODE:
		2176	{
		2177	#if HAVE_LINUX_SPLICE
		2178	loff_t off_in_, off_out_;
		2179	RETVAL = splice (
		2180	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2181	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2182	length, flags
		2183	);
		2184	#else
		2185	RETVAL = EIO_ENOSYS ();
		2186	#endif
		2187	}
		2188	OUTPUT:
		2189	RETVAL
		2190
		2191	int
		2192	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2193	CODE:
		2194	#if HAVE_LINUX_SPLICE
		2195	RETVAL = tee (rfh, wfh, length, flags);
		2196	#else
		2197	RETVAL = EIO_ENOSYS ();
		2198	#endif
		2199	OUTPUT:
		2200	RETVAL
		2201
		2202	int
		2203	pipesize (aio_rfd rfh, int new_size = -1)
		2204	PROTOTYPE: $;$
		2205	CODE:
		2206	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2207	if (new_size >= 0)
		2208	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2209	else
		2210	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2211	#else
		2212	errno = ENOSYS;
		2213	RETVAL = -1;
		2214	#endif
		2215	OUTPUT:
		2216	RETVAL
		2217
		2218	void
		2219	pipe2 (int flags = 0)
		2220	PROTOTYPE: ;$
		2221	PPCODE:
		2222	{
		2223	int fd[2];
		2224	int res;
		2225
		2226	if (flags)
		2227	#if HAVE_PIPE2
		2228	res = pipe2 (fd, flags);
		2229	#else
		2230	res = (errno = ENOSYS, -1);
		2231	#endif
		2232	else
		2233	res = pipe (fd);
		2234
		2235	if (!res)
		2236	{
		2237	EXTEND (SP, 2);
		2238	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2239	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2240	}
		2241	}
		2242
		2243	void
		2244	eventfd (unsigned int initval = 0, int flags = 0)
		2245	PPCODE:
		2246	{
		2247	int fd;
		2248	#if HAVE_EVENTFD
		2249	fd = eventfd (initval, flags);
		2250	#else
		2251	fd = (errno = ENOSYS, -1);
		2252	#endif
		2253
		2254	XPUSHs (newmortalFH (fd, O_RDWR));
		2255	}
		2256
		2257	void
		2258	timerfd_create (int clockid, int flags = 0)
		2259	PPCODE:
		2260	{
		2261	int fd;
		2262	#if HAVE_TIMERFD
		2263	fd = timerfd_create (clockid, flags);
		2264	#else
		2265	fd = (errno = ENOSYS, -1);
		2266	#endif
		2267
		2268	XPUSHs (newmortalFH (fd, O_RDWR));
		2269	}
		2270
		2271	void
		2272	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2273	PPCODE:
		2274	{
		2275	int fd = s_fileno_croak (fh, 0);
		2276	#if HAVE_TIMERFD
		2277	int res;
		2278	struct itimerspec its, ots;
		2279
		2280	ts_set (&its.it_interval, interval);
		2281	ts_set (&its.it_value , value);
		2282	res = timerfd_settime (fd, flags, &its, &ots);
		2283
		2284	if (!res)
		2285	{
		2286	EXTEND (SP, 2);
		2287	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2288	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2289	}
		2290	#else
		2291	errno = ENOSYS;
		2292	#endif
		2293	}
		2294
		2295	void
		2296	timerfd_gettime (SV *fh)
		2297	PPCODE:
		2298	{
		2299	int fd = s_fileno_croak (fh, 0);
		2300	#if HAVE_TIMERFD
		2301	int res;
		2302	struct itimerspec ots;
		2303	res = timerfd_gettime (fd, &ots);
		2304
		2305	if (!res)
		2306	{
		2307	EXTEND (SP, 2);
		2308	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2309	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2310	}
		2311	#else
		2312	errno = ENOSYS;
		2313	#endif
		2314	}
		2315
		2316	UV
		2317	get_fdlimit ()
		2318	CODE:
		2319	#if HAVE_RLIMITS
		2320	struct rlimit rl;
		2321	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2322	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2323	#endif
		2324	XSRETURN_UNDEF;
		2325	OUTPUT:
		2326	RETVAL
		2327
		2328	void
		2329	min_fdlimit (UV limit = 0x7fffffffU)
		2330	CODE:
		2331	{
		2332	#if HAVE_RLIMITS
		2333	struct rlimit rl;
		2334	rlim_t orig_rlim_max;
		2335	UV bit;
		2336
		2337	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2338	goto fail;
		2339
		2340	if (rl.rlim_cur == RLIM_INFINITY)
		2341	XSRETURN_YES;
		2342
		2343	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2344
		2345	if (rl.rlim_cur < limit)
		2346	{
		2347	rl.rlim_cur = limit;
		2348
		2349	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2350	rl.rlim_max = rl.rlim_cur;
		2351	}
		2352
		2353	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2354	XSRETURN_YES;
		2355
		2356	if (errno == EPERM)
		2357	{
		2358	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2359	/* our limit overflows a system-wide limit */
		2360	/* try an adaptive algorithm, but do not lower the hardlimit */
		2361	rl.rlim_max = 0;
		2362	for (bit = 0x40000000U; bit; bit >>= 1)
		2363	{
		2364	rl.rlim_max |= bit;
		2365	rl.rlim_cur = rl.rlim_max;
		2366
		2367	/* nevr decrease the hard limit */
		2368	if (rl.rlim_max < orig_rlim_max)
		2369	break;
		2370
		2371	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2372	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2373	}
		2374
		2375	/* now, raise the soft limit to the max permitted */
		2376	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2377	{
		2378	rl.rlim_cur = rl.rlim_max;
		2379	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2380	errno = EPERM;
		2381	}
		2382	}
		2383	#endif
		2384	fail:
		2385	XSRETURN_UNDEF;
		2386	}
1706		2387
1707	void _on_next_submit (SV *cb)	2388	void _on_next_submit (SV *cb)
1708	CODE:	2389	CODE:
1709	SvREFCNT_dec (on_next_submit);	2390	SvREFCNT_dec (on_next_submit);
1710	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2391	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1711		2392
1712	PROTOTYPES: DISABLE	2393	PROTOTYPES: DISABLE
1713		2394
		2395	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2396
		2397	BOOT:
		2398	{
		2399	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2400	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2401	}
		2402
		2403	void
		2404	DESTROY (SV *self)
		2405	CODE:
		2406	{
		2407	aio_wd wd = SvAIO_WD (self);
		2408	#if HAVE_AT
		2409	{
		2410	SV *callback = &PL_sv_undef;
		2411	dREQ; /* clobbers next_pri :/ */
		2412	next_pri = req->pri; /* restore next_pri */
		2413	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2414	req->type = EIO_WD_CLOSE;
		2415	req->wd = wd;
		2416	REQ_SEND;
		2417	}
		2418	#else
		2419	eio_wd_close_sync (wd);
		2420	#endif
		2421	}
		2422
1714	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2423	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1715		2424
1716	void	2425	void
1717	cancel (aio_req_ornot req)	2426	cancel (aio_req_ornot req)
1718	CODE:	2427	CODE:
1719	eio_cancel (req);	2428	eio_cancel (req);
1720		2429
1721	void	2430	void
1722	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2431	cb (aio_req_ornot req, SV *callback = NO_INIT)
1723	PPCODE:	2432	PPCODE:
1724	{	2433	{
1725	if (GIMME_V != G_VOID)	2434	if (GIMME_V != G_VOID)
1726	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2435	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1727		2436
1728	if (items > 1)	2437	if (items > 1)
1729	{	2438	{
1730	SV *cb_cv =get_cb (callback);	2439	SV *cb_cv = get_cb (callback);
1731		2440
1732	SvREFCNT_dec (req->callback);	2441	SvREFCNT_dec (req->callback);
1733	req->callback = SvREFCNT_inc (cb_cv);	2442	req->callback = SvREFCNT_inc (cb_cv);
1734	}	2443	}
1735	}	2444	}
…		…
1792	limit (aio_req grp, int limit)	2501	limit (aio_req grp, int limit)
1793	CODE:	2502	CODE:
1794	eio_grp_limit (grp, limit);	2503	eio_grp_limit (grp, limit);
1795		2504
1796	void	2505	void
1797	feed (aio_req grp, SV *callback=&PL_sv_undef)	2506	feed (aio_req grp, SV *callback = &PL_sv_undef)
1798	CODE:	2507	CODE:
1799	{	2508	{
1800	SvREFCNT_dec (grp->sv2);	2509	SvREFCNT_dec (grp->sv2);
1801	grp->sv2 = newSVsv (callback);	2510	grp->sv2 = newSVsv (callback);
1802	grp->feed = aio_grp_feed;	2511	grp->feed = aio_grp_feed;

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