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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.186 by root, Thu Jul 14 22:36:17 2011 UTC vs.
Revision 1.261 by root, Tue Jul 24 19:32:20 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	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
21	# include <sys/mman.h>	24	# include <sys/mman.h>
22	#endif	25	#endif
23		26
		27	/* the incompetent fool that created musl keeps __linux__, refuses
		28	* to implement any linux standard apis, and also has no way to test
		29	* for his broken iplementation. don't complain to me if this fails
		30	* for you.
		31	*/
		32	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		33	# include <linux/fs.h>
		34	# ifdef FS_IOC_FIEMAP
		35	# include <linux/types.h>
		36	# include <linux/fiemap.h>
		37	# define HAVE_FIEMAP 1
		38	# endif
		39	#endif
		40
24	/* perl namespace pollution */	41	/* perl namespace pollution */
25	#undef VERSION	42	#undef VERSION
26
27	#ifdef _WIN32
28
29	# define EIO_STRUCT_DIRENT Direntry_t
30	# undef malloc
31	# undef free
32
33	// perl overrides all those nice win32 functions
34	# undef open
35	# undef read
36	# undef write
37	# undef send
38	# undef recv
39	# undef stat
40	# undef fstat
41	# define lstat stat
42	# undef truncate
43	# undef ftruncate
44	# undef open
45	# undef close
46	# undef unlink
47	# undef rmdir
48	# undef rename
49	# undef lseek
50
51	# define opendir(fd) (errno = ENOSYS, 0)
52	# define readdir(fd) (errno = ENOSYS, -1)
53	# define closedir(fd) (errno = ENOSYS, -1)
54
55	#else
56
57	# include <sys/time.h>
58	# include <sys/select.h>
59	# include <unistd.h>
60	# include <utime.h>
61	# include <signal.h>
62	# define EIO_STRUCT_DIRENT struct dirent
63
64	#endif
65		43
66	/* perl stupidly overrides readdir and maybe others */	44	/* perl stupidly overrides readdir and maybe others */
67	/* with thread-unsafe versions, imagine that :( */	45	/* with thread-unsafe versions, imagine that :( */
68	#undef readdir	46	#undef readdir
69	#undef opendir	47	#undef opendir
70	#undef closedir	48	#undef closedir
71		49
		50	#ifdef _WIN32
		51
		52	// perl overrides all those nice libc functions
		53
		54	#undef malloc
		55	#undef free
		56	#undef open
		57	#undef read
		58	#undef write
		59	#undef send
		60	#undef recv
		61	#undef stat
		62	#undef lstat
		63	#undef fstat
		64	#undef truncate
		65	#undef ftruncate
		66	#undef open
		67	#undef link
		68	#undef close
		69	#undef unlink
		70	#undef mkdir
		71	#undef rmdir
		72	#undef rename
		73	#undef lseek
		74	#undef opendir
		75	#undef readdir
		76	#undef closedir
		77	#undef chmod
		78	#undef fchmod
		79	#undef dup
		80	#undef dup2
		81	#undef abort
		82	#undef pipe
		83
		84	#define EIO_STRUCT_STAT struct _stati64
72	#define EIO_STRUCT_STAT Stat_t	85	#define EIO_STRUCT_STATI64
73		86
74	/* use NV for 32 bit perls as it allows larger offsets */
75	#if IVSIZE >= 8
76	# define VAL64 IV
77	# define SvVAL64 SvIV
78	# define newSVval64 newSViv
79	#else	87	#else
80	# define VAL64 NV	88
81	# define SvVAL64 SvNV	89	#include <sys/time.h>
82	# define newSVval64 newSVnv	90	#include <sys/select.h>
		91	#include <unistd.h>
		92	#include <utime.h>
		93	#include <signal.h>
		94
		95	#define EIO_STRUCT_STAT Stat_t
		96
83	#endif	97	#endif
84		98
85	/*****************************************************************************/	99	/*****************************************************************************/
86		100
87	#if __GNUC__ >= 3	101	#if __GNUC__ >= 3
…		…
93	#define expect_false(expr) expect ((expr) != 0, 0)	107	#define expect_false(expr) expect ((expr) != 0, 0)
94	#define expect_true(expr) expect ((expr) != 0, 1)	108	#define expect_true(expr) expect ((expr) != 0, 1)
95		109
96	/*****************************************************************************/	110	/*****************************************************************************/
97		111
		112	#include "libeio/config.h"
		113
		114	#include "schmorp.h"
		115
		116	#if HAVE_EVENTFD
		117	# include <sys/eventfd.h>
		118	#endif
		119
		120	#if HAVE_TIMERFD
		121	# include <sys/timerfd.h>
		122	#endif
		123
		124	#if HAVE_RLIMITS
		125	#include <sys/time.h>
		126	#include <sys/resource.h>
		127	#endif
		128
98	typedef SV SV8; /* byte-sv, used for argument-checking */	129	typedef SV SV8; /* byte-sv, used for argument-checking */
99	typedef int aio_rfd; /* read file desriptor */	130	typedef int aio_rfd; /* read file desriptor */
100	typedef int aio_wfd; /* write file descriptor */	131	typedef int aio_wfd; /* write file descriptor */
101		132
102	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	133	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
103		134
104	#define EIO_REQ_MEMBERS \	135	#define EIO_REQ_MEMBERS \
105	SV *callback; \	136	SV *callback; \
106	SV *sv1, *sv2; \	137	SV *sv1, *sv2; \
		138	SV *sv3, *sv4; \
107	STRLEN stroffset; \	139	STRLEN stroffset; \
108	SV *self;	140	SV *self;
109		141
110	#define EIO_NO_WRAPPERS 1	142	#define EIO_NO_WRAPPERS 1
111		143
112	#include "libeio/config.h"
113	#include "libeio/eio.h"	144	#include "libeio/eio.h"
114		145
115	/* Linux/others */	146	static int req_invoke (eio_req *req);
116	#ifndef O_ASYNC	147	#define EIO_FINISH(req) req_invoke (req)
117	# define O_ASYNC 0	148	static void req_destroy (eio_req *grp);
118	#endif	149	#define EIO_DESTROY(req) req_destroy (req)
119	#ifndef O_DIRECT
120	# define O_DIRECT 0
121	#endif
122	#ifndef O_NOATIME
123	# define O_NOATIME 0
124	#endif
125		150
126	/* POSIX */	151	#include "libeio/eio.c"
127	#ifndef O_CLOEXEC
128	# define O_CLOEXEC 0
129	#endif
130	#ifndef O_NOFOLLOW
131	# define O_NOFOLLOW 0
132	#endif
133	#ifndef O_NOCTTY
134	# define O_NOCTTY 0
135	#endif
136	#ifndef O_NONBLOCK
137	# define O_NONBLOCK 0
138	#endif
139	#ifndef O_EXEC
140	# define O_EXEC 0
141	#endif
142	#ifndef O_SEARCH
143	# define O_SEARCH 0
144	#endif
145	#ifndef O_DIRECTORY
146	# define O_DIRECTORY 0
147	#endif
148	#ifndef O_DSYNC
149	# define O_DSYNC 0
150	#endif
151	#ifndef O_RSYNC
152	# define O_RSYNC 0
153	#endif
154	#ifndef O_SYNC
155	# define O_SYNC 0
156	#endif
157	#ifndef O_TTY_INIT
158	# define O_TTY_INIT 0
159	#endif
160
161	#ifndef POSIX_FADV_NORMAL
162	# define POSIX_FADV_NORMAL 0
163	#endif
164	#ifndef POSIX_FADV_SEQUENTIAL
165	# define POSIX_FADV_SEQUENTIAL 0
166	#endif
167	#ifndef POSIX_FADV_RANDOM
168	# define POSIX_FADV_RANDOM 0
169	#endif
170	#ifndef POSIX_FADV_NOREUSE
171	# define POSIX_FADV_NOREUSE 0
172	#endif
173	#ifndef POSIX_FADV_WILLNEED
174	# define POSIX_FADV_WILLNEED 0
175	#endif
176	#ifndef POSIX_FADV_DONTNEED
177	# define POSIX_FADV_DONTNEED 0
178	#endif
179		152
180	#if !HAVE_POSIX_FADVISE	153	#if !HAVE_POSIX_FADVISE
181	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	154	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
182	#endif	155	#endif
183		156
184	#ifndef POSIX_MADV_NORMAL
185	# define POSIX_MADV_NORMAL 0
186	#endif
187	#ifndef POSIX_MADV_SEQUENTIAL
188	# define POSIX_MADV_SEQUENTIAL 0
189	#endif
190	#ifndef POSIX_MADV_RANDOM
191	# define POSIX_MADV_RANDOM 0
192	#endif
193	#ifndef POSIX_MADV_WILLNEED
194	# define POSIX_MADV_WILLNEED 0
195	#endif
196	#ifndef POSIX_MADV_DONTNEED
197	# define POSIX_MADV_DONTNEED 0
198	#endif
199
200	#if !HAVE_POSIX_MADVISE	157	#if !HAVE_POSIX_MADVISE
201	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	158	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
202	#endif
203
204	#ifndef PROT_NONE
205	# define PROT_NONE 0
206	#endif
207	#ifndef PROT_READ
208	# define PROT_READ 0
209	#endif
210	#ifndef PROT_WRITE
211	# define PROT_READ 0
212	#endif
213	#ifndef PROT_EXEC
214	# define PROT_EXEC 0
215	#endif
216
217	#ifndef ST_NODEV
218	# define ST_NODEV 0
219	#endif
220	#ifndef ST_NOEXEC
221	# define ST_NOEXEC 0
222	#endif
223	#ifndef ST_SYNCHRONOUS
224	# define ST_SYNCHRONOUS 0
225	#endif
226	#ifndef ST_MANDLOCK
227	# define ST_MANDLOCK 0
228	#endif
229	#ifndef ST_WRITE
230	# define ST_WRITE 0
231	#endif
232	#ifndef ST_APPEND
233	# define ST_APPEND 0
234	#endif
235	#ifndef ST_IMMUTABLE
236	# define ST_IMMUTABLE 0
237	#endif
238	#ifndef ST_NOATIME
239	# define ST_NOATIME 0
240	#endif
241	#ifndef ST_NODIRATIME
242	# define ST_NODIRATIME 0
243	#endif
244	#ifndef ST_RELATIME
245	# define ST_RELATIME 0
246	#endif
247
248	#ifndef S_IFIFO
249	# define S_IFIFO 0
250	#endif
251	#ifndef S_IFCHR
252	# define S_IFCHR 0
253	#endif
254	#ifndef S_IFBLK
255	# define S_IFBLK 0
256	#endif
257	#ifndef S_IFLNK
258	# define S_IFLNK 0
259	#endif
260	#ifndef S_IFREG
261	# define S_IFREG 0
262	#endif
263	#ifndef S_IFDIR
264	# define S_IFDIR 0
265	#endif
266	#ifndef S_IFWHT
267	# define S_IFWHT 0
268	#endif
269	#ifndef S_IFSOCK
270	# define S_IFSOCK 0
271	#endif	159	#endif
272		160
273	#ifndef MAP_ANONYMOUS	161	#ifndef MAP_ANONYMOUS
274	# ifdef MAP_ANON	162	# ifdef MAP_ANON
275	# define MAP_ANONYMOUS MAP_ANON	163	# define MAP_ANONYMOUS MAP_ANON
276	# else	164	# else
277	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	165	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
278	# endif	166	# endif
279	#endif	167	#endif
280	#ifndef MAP_HUGETLB
281	# define MAP_HUGETLB 0
282	#endif
283	#ifndef MAP_LOCKED
284	# define MAP_LOCKED 0
285	#endif
286	#ifndef MAP_NORESERVE
287	# define MAP_NORESERVE 0
288	#endif
289	#ifndef MAP_POPULATE
290	# define MAP_POPULATE 0
291	#endif
292	#ifndef MAP_NONBLOCK
293	# define MAP_NONBLOCK 0
294	#endif
295		168
296	#ifndef makedev	169	#ifndef makedev
297	# define makedev(maj,min) (((maj) << 8) | (min))	170	# define makedev(maj,min) (((maj) << 8) | (min))
298	#endif	171	#endif
299	#ifndef major	172	#ifndef major
…		…
301	#endif	174	#endif
302	#ifndef minor	175	#ifndef minor
303	# define minor(dev) ((dev) & 0xff)	176	# define minor(dev) ((dev) & 0xff)
304	#endif	177	#endif
305		178
306	#ifndef PAGESIZE	179	#if PAGESIZE <= 0
307	# define PAGESIZE sysconf (_SC_PAGESIZE)	180	# define PAGESIZE sysconf (_SC_PAGESIZE)
308	#endif	181	#endif
309		182
310	static int req_invoke (eio_req *req);	183	/*****************************************************************************/
311	#define EIO_FINISH(req) req_invoke (req)	184
312	static void req_destroy (eio_req *grp);	185	#if !_POSIX_MAPPED_FILES
313	#define EIO_DESTROY(req) req_destroy (req)	186	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		187	# define munmap(addr,length) EIO_ENOSYS ()
		188	#endif
		189
		190	#if !_POSIX_MEMORY_PROTECTION
		191	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		192	#endif
		193
		194	#if !MREMAP_MAYMOVE
		195	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		196	#endif
		197
		198	#define FOREIGN_MAGIC PERL_MAGIC_ext
		199
		200	static int ecb_cold
		201	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		202	{
		203	int old_errno = errno;
		204	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		205	errno = old_errno;
		206
		207	mg->mg_obj = 0; /* just in case */
		208
		209	SvREADONLY_off (sv);
		210
		211	if (SvPVX (sv) != mg->mg_ptr)
		212	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		213
		214	SvCUR_set (sv, 0);
		215	SvPVX (sv) = 0;
		216	SvOK_off (sv);
		217
		218	return 0;
		219	}
		220
		221	static MGVTBL mmap_vtbl = {
		222	0, 0, 0, 0, mmap_free
		223	};
		224
		225	static int ecb_cold
		226	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		227	{
		228	free (mg->mg_ptr);
		229	mg->mg_obj = 0; /* just in case */
		230
		231	SvREADONLY_off (sv);
		232
		233	if (SvPVX (sv) != mg->mg_ptr)
		234	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		235
		236	SvCUR_set (sv, 0);
		237	SvPVX (sv) = 0;
		238	SvOK_off (sv);
		239
		240	return 0;
		241	}
		242
		243	static MGVTBL sysfree_vtbl = {
		244	0, 0, 0, 0, sysfree_free
		245	};
		246
		247	/*****************************************************************************/
		248
		249	/* helper: set scalar to foreign ptr with custom free */
		250	static void
		251	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		252	{
		253	sv_force_normal (sv);
		254
		255	/* we store the length in mg_obj, as namlen is I32 :/ */
		256	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		257	->mg_obj = (SV *)length;
		258
		259	SvUPGRADE (sv, SVt_PV); /* nop... */
		260
		261	if (SvLEN (sv))
		262	Safefree (SvPVX (sv));
		263
		264	SvPVX (sv) = (char *)addr;
		265	SvCUR_set (sv, length);
		266	SvLEN_set (sv, 0);
		267	SvPOK_only (sv);
		268	}
		269
		270	static void
		271	sv_clear_foreign (SV *sv)
		272	{
		273	/* todo: iterate over magic and only free ours, but of course */
		274	/* the perl5porters will call that (correct) behaviour buggy */
		275	sv_unmagic (sv, FOREIGN_MAGIC);
		276	}
		277
		278	/*****************************************************************************/
		279
		280	/* defines all sorts of constants to 0 unless they are already defined */
		281	/* also provides const_iv_ and const_niv_ macros for them */
		282	#include "def0.h"
		283
		284	/*****************************************************************************/
		285
		286	static void
		287	fiemap (eio_req *req)
		288	{
		289	req->result = -1;
		290
		291	#if HAVE_FIEMAP
		292	/* assume some c99 */
		293	struct fiemap *fiemap = 0;
		294	size_t end_offset;
		295	int count = req->int3;
		296
		297	req->flags |= EIO_FLAG_PTR1_FREE;
		298
		299	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		300	/* increase in 3.5kb steps */
		301	if (count < 0)
		302	count = 8;
		303
		304	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		305	errno = ENOMEM;
		306	if (!fiemap)
		307	return;
		308
		309	req->ptr1 = fiemap;
		310
		311	fiemap->fm_start = req->offs;
		312	fiemap->fm_length = req->size;
		313	fiemap->fm_flags = req->int2;
		314	fiemap->fm_extent_count = count;
		315
		316	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		317	return;
		318
		319	if (req->int3 >= 0 /* not autosizing */
		320	|| !fiemap->fm_mapped_extents /* no more extents */
		321	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		322	goto done;
		323
		324	/* else we have to loop -
		325	* it would be tempting (actually I tried that first) to just query the
		326	* number of extents needed, but linux often feels like not returning all
		327	* extents, without telling us it left any out. this complicates
		328	* this quite a bit.
		329	*/
		330
		331	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		332
		333	for (;;)
		334	{
		335	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		336	char scratch[3072];
		337	struct fiemap *incmap = (struct fiemap *)scratch;
		338
		339	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		340	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		341	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		342	incmap->fm_flags = fiemap->fm_flags;
		343	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		344
		345	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		346	return;
		347
		348	if (!incmap->fm_mapped_extents)
		349	goto done;
		350
		351	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		352	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		353	errno = ENOMEM;
		354	if (!fiemap)
		355	return;
		356
		357	req->ptr1 = fiemap;
		358
		359	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		360	{
		361	struct fiemap_extent *e = incmap->fm_extents + count;
		362
		363	if (e->fe_logical + e->fe_length >= end_offset)
		364	goto done;
		365
		366	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		367
		368	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		369	goto done;
		370
		371	}
		372	}
		373
		374	done:
		375	req->result = 0;
		376
		377	#else
		378	errno = ENOSYS;
		379	#endif
		380	}
		381
		382	/*****************************************************************************/
314		383
315	enum {	384	enum {
316	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	385	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
317	};	386	};
318		387
319	#include "libeio/eio.c"
320
321	typedef eio_req *aio_req;	388	typedef eio_req *aio_req;
322	typedef eio_req *aio_req_ornot;	389	typedef eio_req *aio_req_ornot;
		390	typedef eio_wd aio_wd;
323		391
324	static SV *on_next_submit;	392	static SV *on_next_submit;
325	static int next_pri = EIO_PRI_DEFAULT;	393	static int next_pri = EIO_PRI_DEFAULT;
326	static int max_outstanding;	394	static int max_outstanding;
327		395
328	static s_epipe respipe;	396	static s_epipe respipe;
329		397
330	static void req_destroy (aio_req req);	398	static void req_destroy (aio_req req);
331	static void req_cancel (aio_req req);	399	static void req_cancel (aio_req req);
332		400
333	static void want_poll (void)	401	static void
		402	want_poll (void)
334	{	403	{
335	/* write a dummy byte to the pipe so fh becomes ready */	404	/* write a dummy byte to the pipe so fh becomes ready */
336	s_epipe_signal (&respipe);	405	s_epipe_signal (&respipe);
337	}	406	}
338		407
339	static void done_poll (void)	408	static void
		409	done_poll (void)
340	{	410	{
341	/* read any signals sent by the worker threads */	411	/* read any signals sent by the worker threads */
342	s_epipe_drain (&respipe);	412	s_epipe_drain (&respipe);
343	}	413	}
344		414
345	/* must be called at most once */	415	/* must be called at most once */
		416	static SV *
346	static SV *req_sv (aio_req req, HV *stash)	417	req_sv (aio_req req, HV *stash)
347	{	418	{
348	if (!req->self)	419	if (!req->self)
349	{	420	{
350	req->self = (SV *)newHV ();	421	req->self = (SV *)newHV ();
351	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	422	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
352	}	423	}
353		424
354	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	425	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
355	}	426	}
356		427
357	static aio_req SvAIO_REQ (SV *sv)	428	static SV *
		429	newSVaio_wd (aio_wd wd)
		430	{
		431	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		432	}
		433
		434	static aio_req
		435	SvAIO_REQ (SV *sv)
358	{	436	{
359	MAGIC *mg;	437	MAGIC *mg;
360		438
361	if (!SvROK (sv)	439	if (!SvROK (sv)
		440	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
362	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	441	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
363	&& SvSTASH (SvRV (sv)) != aio_req_stash	442	&& SvSTASH (SvRV (sv)) != aio_req_stash
364	&& !sv_derived_from (sv, "IO::AIO::REQ")))	443	&& !sv_derived_from (sv, "IO::AIO::REQ")))
365	croak ("object of class IO::AIO::REQ expected");	444	croak ("object of class IO::AIO::REQ expected");
366		445
367	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	446	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
368		447
369	return mg ? (aio_req)mg->mg_ptr : 0;	448	return mg ? (aio_req)mg->mg_ptr : 0;
370	}	449	}
371		450
		451	static aio_wd
		452	SvAIO_WD (SV *sv)
		453	{
		454	if (!SvROK (sv)
		455	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		456	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		457	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		458
		459	return (aio_wd)(long)SvIVX (SvRV (sv));
		460	}
		461
		462	static SV *
		463	newmortalFH (int fd, int flags)
		464	{
		465	if (fd < 0)
		466	return &PL_sv_undef;
		467
		468	GV *gv = (GV *)sv_newmortal ();
		469	char sym[64];
		470	int symlen;
		471
		472	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		473	gv_init (gv, aio_stash, sym, symlen, 0);
		474
		475	symlen = snprintf (
		476	sym,
		477	sizeof (sym),
		478	"%s&=%d",
		479	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		480	fd
		481	);
		482
		483	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		484	? (SV *)gv : &PL_sv_undef;
		485	}
		486
		487	static void
372	static void aio_grp_feed (aio_req grp)	488	aio_grp_feed (aio_req grp)
373	{	489	{
374	if (grp->sv2 && SvOK (grp->sv2))	490	if (grp->sv2 && SvOK (grp->sv2))
375	{	491	{
376	dSP;	492	dSP;
377		493
…		…
385	FREETMPS;	501	FREETMPS;
386	LEAVE;	502	LEAVE;
387	}	503	}
388	}	504	}
389		505
		506	static void
390	static void req_submit (eio_req *req)	507	req_submit (eio_req *req)
391	{	508	{
392	eio_submit (req);	509	eio_submit (req);
393		510
394	if (expect_false (on_next_submit))	511	if (expect_false (on_next_submit))
395	{	512	{
…		…
402	PUTBACK;	519	PUTBACK;
403	call_sv (cb, G_DISCARD | G_EVAL);	520	call_sv (cb, G_DISCARD | G_EVAL);
404	}	521	}
405	}	522	}
406		523
		524	static int
407	static int req_invoke (eio_req *req)	525	req_invoke (eio_req *req)
408	{	526	{
409	if (req->flags & FLAG_SV2_RO_OFF)	527	if (req->flags & FLAG_SV2_RO_OFF)
410	SvREADONLY_off (req->sv2);	528	SvREADONLY_off (req->sv2);
411		529
412	if (!EIO_CANCELLED (req) && req->callback)	530	if (!EIO_CANCELLED (req) && req->callback)
…		…
433	SvREADONLY_on (sv_result);	551	SvREADONLY_on (sv_result);
434	}	552	}
435		553
436	switch (req->type)	554	switch (req->type)
437	{	555	{
		556	case EIO_WD_OPEN:
		557	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		558	break;
		559
438	case EIO_READDIR:	560	case EIO_READDIR:
439	{	561	{
440	SV *rv = &PL_sv_undef;	562	SV *rv = &PL_sv_undef;
441		563
442	if (req->result >= 0)	564	if (req->result >= 0)
…		…
495	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	617	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
496	}	618	}
497	break;	619	break;
498		620
499	case EIO_OPEN:	621	case EIO_OPEN:
500	{	622	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
501	/* convert fd to fh */
502	SV *fh = &PL_sv_undef;
503
504	if (req->result >= 0)
505	{
506	GV *gv = (GV *)sv_newmortal ();
507	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
508	char sym [64];
509	int symlen;
510
511	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
512	gv_init (gv, aio_stash, sym, symlen, 0);
513
514	symlen = snprintf (
515	sym,
516	sizeof (sym),
517	"%s&=%d",
518	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
519	(int)req->result
520	);
521
522	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
523	fh = (SV *)gv;
524	}
525
526	PUSHs (fh);
527	}
528	break;	623	break;
529		624
530	case EIO_STATVFS:	625	case EIO_STATVFS:
531	case EIO_FSTATVFS:	626	case EIO_FSTATVFS:
532	{	627	{
533	SV *rv = &PL_sv_undef;	628	SV *rv = &PL_sv_undef;
534		629
		630	#ifndef _WIN32
535	if (req->result >= 0)	631	if (req->result >= 0)
536	{	632	{
537	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	633	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
538	HV *hv = newHV ();	634	HV *hv = newHV ();
		635	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		636	* chooses to make it a struct.
		637	*/
		638	unsigned long fsid = 0;
		639	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
539		640
540	rv = sv_2mortal (newRV_noinc ((SV *)hv));	641	rv = sv_2mortal (newRV_noinc ((SV *)hv));
541		642
542	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	643	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
543	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	644	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
545	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	646	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
546	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	647	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
547	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	648	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
548	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	649	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
549	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	650	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
550	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	651	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
551	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	652	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
552	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	653	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
553	}	654	}
		655	#endif
554		656
555	PUSHs (rv);	657	PUSHs (rv);
556	}	658	}
557		659
558	break;	660	break;
…		…
582	break;	684	break;
583		685
584	case EIO_STAT:	686	case EIO_STAT:
585	case EIO_LSTAT:	687	case EIO_LSTAT:
586	case EIO_FSTAT:	688	case EIO_FSTAT:
587	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	689	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		690
588	PL_laststatval = req->result;	691	if (!(PL_laststatval = req->result))
		692	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
589	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	693	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		694
590	PUSHs (sv_result);	695	PUSHs (sv_result);
		696	break;
		697
		698	case EIO_SEEK:
		699	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
591	break;	700	break;
592		701
593	case EIO_READ:	702	case EIO_READ:
594	{	703	{
595	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	704	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
598	SvSETMAGIC (req->sv2);	707	SvSETMAGIC (req->sv2);
599	PUSHs (sv_result);	708	PUSHs (sv_result);
600	}	709	}
601	break;	710	break;
602		711
		712	case EIO_SLURP:
		713	{
		714	if (req->result >= 0)
		715	{
		716	/* if length was originally not known, we steal the malloc'ed memory */
		717	if (req->flags & EIO_FLAG_PTR2_FREE)
		718	{
		719	req->flags &= ~EIO_FLAG_PTR2_FREE;
		720	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		721	}
		722	else
		723	{
		724	SvCUR_set (req->sv2, req->result);
		725	*SvEND (req->sv2) = 0;
		726	SvPOK_only (req->sv2);
		727	}
		728
		729	SvSETMAGIC (req->sv2);
		730	}
		731
		732	PUSHs (sv_result);
		733	}
		734	break;
		735
		736	case EIO_CUSTOM:
		737	if (req->feed == fiemap)
		738	{
		739	#if HAVE_FIEMAP
		740	if (!req->result)
		741	{
		742	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		743
		744	if (fiemap->fm_extent_count)
		745	{
		746	AV *av = newAV ();
		747	int i;
		748
		749	while (fiemap->fm_mapped_extents)
		750	{
		751	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		752	AV *ext_av = newAV ();
		753
		754	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		755	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		756	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		757	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		758
		759	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		760	}
		761
		762	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		763	}
		764	else
		765	{
		766	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		767	PUSHs (sv_result);
		768	}
		769	}
		770	#endif
		771	}
		772	else
		773	PUSHs (sv_result);
		774	break;
		775
603	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */	776	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
604	if (req->result > 0)	777	if (req->result > 0)
605	SvIV_set (sv_result, 0);	778	SvIV_set (sv_result, 0);
606	/* FALLTHROUGH */	779	/* FALLTHROUGH */
607		780
…		…
628	}	801	}
629		802
630	return !!SvTRUE (ERRSV);	803	return !!SvTRUE (ERRSV);
631	}	804	}
632		805
		806	static void
633	static void req_destroy (aio_req req)	807	req_destroy (aio_req req)
634	{	808	{
635	if (req->self)	809	if (req->self)
636	{	810	{
637	sv_unmagic (req->self, PERL_MAGIC_ext);	811	sv_unmagic (req->self, PERL_MAGIC_ext);
638	SvREFCNT_dec (req->self);	812	SvREFCNT_dec (req->self);
639	}	813	}
640		814
641	SvREFCNT_dec (req->sv1);	815	SvREFCNT_dec (req->sv1);
642	SvREFCNT_dec (req->sv2);	816	SvREFCNT_dec (req->sv2);
		817	SvREFCNT_dec (req->sv3);
		818	SvREFCNT_dec (req->sv4);
643	SvREFCNT_dec (req->callback);	819	SvREFCNT_dec (req->callback);
644		820
645	Safefree (req);	821	free (req);
646	}	822	}
647		823
		824	static void
648	static void req_cancel_subs (aio_req grp)	825	req_cancel_subs (aio_req grp)
649	{	826	{
650	aio_req sub;
651
652	if (grp->type != EIO_GROUP)	827	if (grp->type != EIO_GROUP)
653	return;	828	return;
654		829
655	SvREFCNT_dec (grp->sv2);	830	SvREFCNT_dec (grp->sv2);
656	grp->sv2 = 0;	831	grp->sv2 = 0;
657		832
658	eio_grp_cancel (grp);	833	eio_grp_cancel (grp);
659	}	834	}
660		835
		836	static void ecb_cold
661	static void create_respipe (void)	837	create_respipe (void)
662	{	838	{
663	if (s_epipe_renew (&respipe))	839	if (s_epipe_renew (&respipe))
664	croak ("IO::AIO: unable to initialize result pipe");	840	croak ("IO::AIO: unable to initialize result pipe");
665	}	841	}
666		842
667	static void poll_wait (void)	843	static void
		844	poll_wait (void)
668	{	845	{
669	while (eio_nreqs ())	846	while (eio_nreqs ())
670	{	847	{
671	int size;	848	int size;
672		849
673	X_LOCK (reslock);	850	X_LOCK (EIO_POOL->reslock);
674	size = res_queue.size;	851	size = EIO_POOL->res_queue.size;
675	X_UNLOCK (reslock);	852	X_UNLOCK (EIO_POOL->reslock);
676		853
677	if (size)	854	if (size)
678	return;	855	return;
679		856
680	etp_maybe_start_thread ();	857	etp_maybe_start_thread (EIO_POOL);
681		858
682	s_epipe_wait (&respipe);	859	s_epipe_wait (&respipe);
683	}	860	}
684	}	861	}
685		862
686	static int poll_cb (void)	863	static int
		864	poll_cb (void)
687	{	865	{
688	for (;;)	866	for (;;)
689	{	867	{
690	int res = eio_poll ();	868	int res = eio_poll ();
691		869
…		…
697		875
698	poll_wait ();	876	poll_wait ();
699	}	877	}
700	}	878	}
701		879
702	static void atfork_child (void)	880	static void ecb_cold
		881	reinit (void)
703	{	882	{
704	create_respipe ();	883	create_respipe ();
		884
		885	if (eio_init (want_poll, done_poll) < 0)
		886	croak ("IO::AIO: unable to initialise eio library");
705	}	887	}
706		888
707	/*****************************************************************************/	889	/*****************************************************************************/
708		890
709	#if !_POSIX_MAPPED_FILES	891	static SV *
710	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
711	# define munmap(addr,length) (errno = ENOSYS, -1)
712	#endif
713
714	#if !_POSIX_MEMORY_PROTECTION
715	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
716	# define PROT_NONE 0
717	# define PROT_WRITE 0
718	# define MAP_PRIVATE 0
719	# define MAP_SHARED 0
720	# define MAP_FIXED 0
721	#endif
722
723	#define MMAP_MAGIC PERL_MAGIC_ext
724
725	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
726	{
727	int old_errno = errno;
728	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
729	errno = old_errno;
730
731	mg->mg_obj = 0; /* just in case */
732
733	SvREADONLY_off (sv);
734
735	if (SvPVX (sv) != mg->mg_ptr)
736	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
737
738	SvCUR_set (sv, 0);
739	SvPVX (sv) = 0;
740	SvOK_off (sv);
741
742	return 0;
743	}
744
745	static MGVTBL mmap_vtbl = {
746	0, 0, 0, 0, mmap_free
747	};
748
749	/*****************************************************************************/
750
751	static SV * get_cb (SV *cb_sv)	892	get_cb (SV *cb_sv)
752	{	893	{
753	SvGETMAGIC (cb_sv);	894	SvGETMAGIC (cb_sv);
754	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	895	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
755	}	896	}
756		897
		898	static aio_req ecb_noinline
		899	dreq (SV *callback)
		900	{
		901	SV *cb_cv;
		902	aio_req req;
		903	int req_pri = next_pri;
		904	next_pri = EIO_PRI_DEFAULT;
		905
		906	cb_cv = get_cb (callback);
		907
		908	req = calloc (sizeof (*req), 1);
		909	if (!req)
		910	croak ("out of memory during eio_req allocation");
		911
		912	req->callback = SvREFCNT_inc (cb_cv);
		913	req->pri = req_pri;
		914
		915	return req;
		916	}
		917
757	#define dREQ \	918	#define dREQ \
758	SV *cb_cv; \	919	aio_req req = dreq (callback); \
759	aio_req req; \
760	int req_pri = next_pri; \
761	next_pri = EIO_PRI_DEFAULT; \
762	\
763	cb_cv = get_cb (callback); \
764	\
765	Newz (0, req, 1, eio_req); \
766	if (!req) \
767	croak ("out of memory during eio_req allocation"); \
768	\
769	req->callback = SvREFCNT_inc (cb_cv); \
770	req->pri = req_pri
771		920
772	#define REQ_SEND \	921	#define REQ_SEND \
773	PUTBACK; \	922	PUTBACK; \
774	req_submit (req); \	923	req_submit (req); \
775	SPAGAIN; \	924	SPAGAIN; \
776	\	925	\
777	if (GIMME_V != G_VOID) \	926	if (GIMME_V != G_VOID) \
778	XPUSHs (req_sv (req, aio_req_stash));	927	XPUSHs (req_sv (req, aio_req_stash));
779		928
		929	ecb_inline void
		930	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		931	{
		932	if (expect_false (SvROK (path)))
		933	{
		934	SV *rv = SvRV (path);
		935	SV *wdob;
		936
		937	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		938	{
		939	path = AvARRAY (rv)[1];
		940	wdob = AvARRAY (rv)[0];
		941
		942	if (SvOK (wdob))
		943	{
		944	*wd = SvAIO_WD (wdob);
		945	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		946	}
		947	else
		948	*wd = EIO_INVALID_WD;
		949	}
		950	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		951	{
		952	*wd = (aio_wd)(long)SvIVX (rv);
		953	*wdsv = SvREFCNT_inc_NN (rv);
		954	*ptr = ".";
		955	return; /* path set to "." */
		956	}
		957	else
		958	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		959	}
		960
		961	*pathsv = newSVsv (path);
		962	*ptr = SvPVbyte_nolen (*pathsv);
		963	}
		964
		965	static void ecb_noinline
		966	req_set_path1 (aio_req req, SV *path)
		967	{
		968	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		969	}
		970
		971	static void ecb_noinline
		972	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		973	{
		974	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		975
		976	switch (SvTYPE (rv))
		977	{
		978	case SVt_PVIO:
		979	case SVt_PVLV:
		980	case SVt_PVGV:
		981	req->type = type_fh;
		982	req->sv1 = newSVsv (fh_or_path);
		983	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		984	break;
		985
		986	default:
		987	req->type = type_path;
		988	req_set_path1 (req, fh_or_path);
		989	break;
		990	}
		991	}
		992
		993	/*****************************************************************************/
		994
		995	static void
		996	ts_set (struct timespec *ts, NV value)
		997	{
		998	ts->tv_sec = value;
		999	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1000	}
		1001
		1002	static NV
		1003	ts_get (const struct timespec *ts)
		1004	{
		1005	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1006	}
		1007
		1008	/*****************************************************************************/
		1009
		1010	XS(boot_IO__AIO) ecb_cold;
		1011
780	MODULE = IO::AIO PACKAGE = IO::AIO	1012	MODULE = IO::AIO PACKAGE = IO::AIO
781		1013
782	PROTOTYPES: ENABLE	1014	PROTOTYPES: ENABLE
783		1015
784	BOOT:	1016	BOOT:
…		…
788	IV iv;	1020	IV iv;
789	} *civ, const_iv[] = {	1021	} *civ, const_iv[] = {
790	# define const_niv(name, value) { # name, (IV) value },	1022	# define const_niv(name, value) { # name, (IV) value },
791	# define const_iv(name) { # name, (IV) name },	1023	# define const_iv(name) { # name, (IV) name },
792	# define const_eio(name) { # name, (IV) EIO_ ## name },	1024	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1025
		1026	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1027	/* the first block can be undef if missing */
		1028	const_iv (ENOSYS)
793	const_iv (EXDEV)	1029	const_iv (EXDEV)
794	const_iv (ENOSYS)	1030	const_iv (EBADR)
		1031
		1032	/* for lseek */
		1033	const_iv (SEEK_DATA)
		1034	const_iv (SEEK_HOLE)
		1035
		1036	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1037	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1038	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1039	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1040	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1041	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1042
		1043	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1044	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1045	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1046	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1047	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1048
		1049	/* the second block will be 0 when missing */
		1050	const_iv (O_ACCMODE)
		1051
795	const_iv (O_RDONLY)	1052	const_iv (O_RDONLY)
796	const_iv (O_WRONLY)	1053	const_iv (O_WRONLY)
797	const_iv (O_RDWR)	1054	const_iv (O_RDWR)
798	const_iv (O_CREAT)	1055	const_iv (O_CREAT)
799	const_iv (O_TRUNC)	1056	const_iv (O_TRUNC)
…		…
812	const_iv (O_SEARCH)	1069	const_iv (O_SEARCH)
813	const_iv (O_DIRECTORY)	1070	const_iv (O_DIRECTORY)
814	const_iv (O_DSYNC)	1071	const_iv (O_DSYNC)
815	const_iv (O_RSYNC)	1072	const_iv (O_RSYNC)
816	const_iv (O_SYNC)	1073	const_iv (O_SYNC)
		1074	const_iv (O_PATH)
		1075	const_iv (O_TMPFILE)
817	const_iv (O_TTY_INIT)	1076	const_iv (O_TTY_INIT)
818		1077
819	const_iv (S_IFIFO)	1078	const_iv (S_IFIFO)
820	const_iv (S_IFCHR)	1079	const_iv (S_IFCHR)
821	const_iv (S_IFBLK)	1080	const_iv (S_IFBLK)
…		…
823	const_iv (S_IFREG)	1082	const_iv (S_IFREG)
824	const_iv (S_IFDIR)	1083	const_iv (S_IFDIR)
825	const_iv (S_IFWHT)	1084	const_iv (S_IFWHT)
826	const_iv (S_IFSOCK)	1085	const_iv (S_IFSOCK)
827	const_iv (S_IFMT)	1086	const_iv (S_IFMT)
828
829	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
830	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
831	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
832	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
833	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
834	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
835
836	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
837	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
838	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
839	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
840	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
841		1087
842	const_iv (ST_RDONLY)	1088	const_iv (ST_RDONLY)
843	const_iv (ST_NOSUID)	1089	const_iv (ST_NOSUID)
844	const_iv (ST_NODEV)	1090	const_iv (ST_NODEV)
845	const_iv (ST_NOEXEC)	1091	const_iv (ST_NOEXEC)
…		…
855	const_iv (PROT_NONE)	1101	const_iv (PROT_NONE)
856	const_iv (PROT_EXEC)	1102	const_iv (PROT_EXEC)
857	const_iv (PROT_READ)	1103	const_iv (PROT_READ)
858	const_iv (PROT_WRITE)	1104	const_iv (PROT_WRITE)
859		1105
860	/*const_iv (MAP_FIXED)*/
861	const_iv (MAP_PRIVATE)	1106	const_iv (MAP_PRIVATE)
862	const_iv (MAP_SHARED)	1107	const_iv (MAP_SHARED)
		1108	const_iv (MAP_FIXED)
863	const_iv (MAP_ANONYMOUS)	1109	const_iv (MAP_ANONYMOUS)
864		1110
865	/* linuxish */	1111	/* linuxish */
866	const_iv (MAP_HUGETLB)
867	const_iv (MAP_LOCKED)	1112	const_iv (MAP_LOCKED)
868	const_iv (MAP_NORESERVE)	1113	const_iv (MAP_NORESERVE)
869	const_iv (MAP_POPULATE)	1114	const_iv (MAP_POPULATE)
870	const_iv (MAP_NONBLOCK)	1115	const_iv (MAP_NONBLOCK)
		1116	const_iv (MAP_GROWSDOWN)
		1117	const_iv (MAP_32BIT)
		1118	const_iv (MAP_HUGETLB)
		1119	const_iv (MAP_STACK)
		1120
		1121	const_iv (MREMAP_MAYMOVE)
		1122	const_iv (MREMAP_FIXED)
		1123
		1124	const_iv (F_DUPFD_CLOEXEC)
		1125
		1126	const_iv (MSG_CMSG_CLOEXEC)
		1127	const_iv (SOCK_CLOEXEC)
		1128
		1129	const_iv (F_OFD_GETLK)
		1130	const_iv (F_OFD_SETLK)
		1131	const_iv (F_OFD_GETLKW)
		1132
		1133	const_iv (FIFREEZE)
		1134	const_iv (FITHAW)
		1135	const_iv (FITRIM)
		1136	const_iv (FICLONE)
		1137	const_iv (FICLONERANGE)
		1138	const_iv (FIDEDUPERANGE)
		1139
		1140	const_iv (FS_IOC_GETFLAGS)
		1141	const_iv (FS_IOC_SETFLAGS)
		1142	const_iv (FS_IOC_GETVERSION)
		1143	const_iv (FS_IOC_SETVERSION)
		1144	const_iv (FS_IOC_FIEMAP)
		1145	const_iv (FS_IOC_FSGETXATTR)
		1146	const_iv (FS_IOC_FSSETXATTR)
		1147	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1148	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1149	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1150
		1151	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1152
		1153	const_iv (FS_SECRM_FL)
		1154	const_iv (FS_UNRM_FL)
		1155	const_iv (FS_COMPR_FL)
		1156	const_iv (FS_SYNC_FL)
		1157	const_iv (FS_IMMUTABLE_FL)
		1158	const_iv (FS_APPEND_FL)
		1159	const_iv (FS_NODUMP_FL)
		1160	const_iv (FS_NOATIME_FL)
		1161	const_iv (FS_DIRTY_FL)
		1162	const_iv (FS_COMPRBLK_FL)
		1163	const_iv (FS_NOCOMP_FL)
		1164	const_iv (FS_ENCRYPT_FL)
		1165	const_iv (FS_BTREE_FL)
		1166	const_iv (FS_INDEX_FL)
		1167	const_iv (FS_JOURNAL_DATA_FL)
		1168	const_iv (FS_NOTAIL_FL)
		1169	const_iv (FS_DIRSYNC_FL)
		1170	const_iv (FS_TOPDIR_FL)
		1171	const_iv (FS_FL_USER_MODIFIABLE)
		1172
		1173	const_iv (FS_XFLAG_REALTIME)
		1174	const_iv (FS_XFLAG_PREALLOC)
		1175	const_iv (FS_XFLAG_IMMUTABLE)
		1176	const_iv (FS_XFLAG_APPEND)
		1177	const_iv (FS_XFLAG_SYNC)
		1178	const_iv (FS_XFLAG_NOATIME)
		1179	const_iv (FS_XFLAG_NODUMP)
		1180	const_iv (FS_XFLAG_RTINHERIT)
		1181	const_iv (FS_XFLAG_PROJINHERIT)
		1182	const_iv (FS_XFLAG_NOSYMLINKS)
		1183	const_iv (FS_XFLAG_EXTSIZE)
		1184	const_iv (FS_XFLAG_EXTSZINHERIT)
		1185	const_iv (FS_XFLAG_NODEFRAG)
		1186	const_iv (FS_XFLAG_FILESTREAM)
		1187	const_iv (FS_XFLAG_DAX)
		1188	const_iv (FS_XFLAG_HASATTR)
		1189
		1190	const_iv (FIEMAP_FLAG_SYNC)
		1191	const_iv (FIEMAP_FLAG_XATTR)
		1192	const_iv (FIEMAP_FLAGS_COMPAT)
		1193	const_iv (FIEMAP_EXTENT_LAST)
		1194	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1195	const_iv (FIEMAP_EXTENT_DELALLOC)
		1196	const_iv (FIEMAP_EXTENT_ENCODED)
		1197	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1198	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1199	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1200	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1201	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1202	const_iv (FIEMAP_EXTENT_MERGED)
		1203	const_iv (FIEMAP_EXTENT_SHARED)
		1204
		1205	const_iv (SPLICE_F_MOVE)
		1206	const_iv (SPLICE_F_NONBLOCK)
		1207	const_iv (SPLICE_F_MORE)
		1208	const_iv (SPLICE_F_GIFT)
		1209
		1210	const_iv (EFD_CLOEXEC)
		1211	const_iv (EFD_NONBLOCK)
		1212	const_iv (EFD_SEMAPHORE)
		1213
		1214	const_iv (CLOCK_REALTIME)
		1215	const_iv (CLOCK_MONOTONIC)
		1216	const_iv (CLOCK_BOOTTIME)
		1217	const_iv (CLOCK_REALTIME_ALARM)
		1218	const_iv (CLOCK_BOOTTIME_ALARM)
		1219
		1220	const_iv (TFD_NONBLOCK)
		1221	const_iv (TFD_CLOEXEC)
		1222
		1223	const_iv (TFD_TIMER_ABSTIME)
		1224	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1225
		1226	/* these are libeio constants, and are independent of gendef0 */
		1227	const_eio (SEEK_SET)
		1228	const_eio (SEEK_CUR)
		1229	const_eio (SEEK_END)
871		1230
872	const_eio (MCL_FUTURE)	1231	const_eio (MCL_FUTURE)
873	const_eio (MCL_CURRENT)	1232	const_eio (MCL_CURRENT)
874		1233
875	const_eio (MS_ASYNC)	1234	const_eio (MS_ASYNC)
…		…
881	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1240	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
882	const_eio (SYNC_FILE_RANGE_WRITE)	1241	const_eio (SYNC_FILE_RANGE_WRITE)
883	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1242	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
884		1243
885	const_eio (FALLOC_FL_KEEP_SIZE)	1244	const_eio (FALLOC_FL_KEEP_SIZE)
		1245	const_eio (FALLOC_FL_PUNCH_HOLE)
		1246	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1247	const_eio (FALLOC_FL_ZERO_RANGE)
		1248	const_eio (FALLOC_FL_INSERT_RANGE)
		1249	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1250
		1251	const_eio (RENAME_NOREPLACE)
		1252	const_eio (RENAME_EXCHANGE)
		1253	const_eio (RENAME_WHITEOUT)
886		1254
887	const_eio (READDIR_DENTS)	1255	const_eio (READDIR_DENTS)
888	const_eio (READDIR_DIRS_FIRST)	1256	const_eio (READDIR_DIRS_FIRST)
889	const_eio (READDIR_STAT_ORDER)	1257	const_eio (READDIR_STAT_ORDER)
890	const_eio (READDIR_FOUND_UNKNOWN)	1258	const_eio (READDIR_FOUND_UNKNOWN)
…		…
901	};	1269	};
902		1270
903	aio_stash = gv_stashpv ("IO::AIO" , 1);	1271	aio_stash = gv_stashpv ("IO::AIO" , 1);
904	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1272	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
905	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1273	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1274	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
906		1275
907	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1276	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
908	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1277	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
909		1278
910	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1279	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
911		1280
912	create_respipe ();	1281	reinit ();
913
914	if (eio_init (want_poll, done_poll) < 0)
915	croak ("IO::AIO: unable to initialise eio library");
916
917	/* atfork child called in fifo order, so before eio's handler */
918	X_THREAD_ATFORK (0, 0, atfork_child);
919	}	1282	}
		1283
		1284	void
		1285	reinit ()
		1286	PROTOTYPE:
920		1287
921	void	1288	void
922	max_poll_reqs (unsigned int nreqs)	1289	max_poll_reqs (unsigned int nreqs)
923	PROTOTYPE: $	1290	PROTOTYPE: $
924	CODE:	1291	CODE:
…		…
959	PROTOTYPE: $	1326	PROTOTYPE: $
960	CODE:	1327	CODE:
961	max_outstanding = maxreqs;	1328	max_outstanding = maxreqs;
962		1329
963	void	1330	void
964	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1331	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
965	PPCODE:	1332	PPCODE:
966	{	1333	{
967	dREQ;	1334	dREQ;
968		1335
		1336	req->type = EIO_WD_OPEN;
		1337	req_set_path1 (req, pathname);
		1338
		1339	REQ_SEND;
		1340	}
		1341
		1342	void
		1343	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1344	PPCODE:
		1345	{
		1346	dREQ;
		1347
969	req->type = EIO_OPEN;	1348	req->type = EIO_OPEN;
970	req->sv1 = newSVsv (pathname);	1349	req_set_path1 (req, pathname);
971	req->ptr1 = SvPVbyte_nolen (req->sv1);
972	req->int1 = flags;	1350	req->int1 = flags;
973	req->int2 = mode;	1351	req->int2 = mode;
974		1352
975	REQ_SEND;	1353	REQ_SEND;
976	}	1354	}
977		1355
978	void	1356	void
979	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1357	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
980	ALIAS:	1358	ALIAS:
981	aio_fsync = EIO_FSYNC	1359	aio_fsync = EIO_FSYNC
982	aio_fdatasync = EIO_FDATASYNC	1360	aio_fdatasync = EIO_FDATASYNC
		1361	aio_syncfs = EIO_SYNCFS
983	PPCODE:	1362	PPCODE:
984	{	1363	{
985	int fd = s_fileno_croak (fh, 0);	1364	int fd = s_fileno_croak (fh, 0);
986	dREQ;	1365	dREQ;
987		1366
988	req->type = ix;	1367	req->type = ix;
989	req->sv1 = newSVsv (fh);	1368	req->sv1 = newSVsv (fh);
990	req->int1 = fd;	1369	req->int1 = fd;
991		1370
992	REQ_SEND (req);	1371	REQ_SEND;
993	}	1372	}
994		1373
995	void	1374	void
996	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1375	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
997	PPCODE:	1376	PPCODE:
998	{	1377	{
999	int fd = s_fileno_croak (fh, 0);	1378	int fd = s_fileno_croak (fh, 0);
1000	dREQ;	1379	dREQ;
1001		1380
1002	req->type = EIO_SYNC_FILE_RANGE;	1381	req->type = EIO_SYNC_FILE_RANGE;
1003	req->sv1 = newSVsv (fh);	1382	req->sv1 = newSVsv (fh);
1004	req->int1 = fd;	1383	req->int1 = fd;
1005	req->offs = offset;	1384	req->offs = offset;
1006	req->size = nbytes;	1385	req->size = nbytes;
1007	req->int2 = flags;	1386	req->int2 = flags;
1008		1387
1009	REQ_SEND (req);	1388	REQ_SEND;
1010	}	1389	}
1011		1390
1012	void	1391	void
1013	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)	1392	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
1014	PPCODE:	1393	PPCODE:
1015	{	1394	{
1016	int fd = s_fileno_croak (fh, 0);	1395	int fd = s_fileno_croak (fh, 0);
1017	dREQ;	1396	dREQ;
1018		1397
1019	req->type = EIO_FALLOCATE;	1398	req->type = EIO_FALLOCATE;
1020	req->sv1 = newSVsv (fh);	1399	req->sv1 = newSVsv (fh);
1021	req->int1 = fd;	1400	req->int1 = fd;
1022	req->int2 = mode;	1401	req->int2 = mode;
1023	req->offs = offset;	1402	req->offs = offset;
1024	req->size = len;	1403	req->size = len;
1025		1404
1026	REQ_SEND (req);	1405	REQ_SEND;
1027	}	1406	}
1028		1407
1029	void	1408	void
1030	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1409	aio_close (SV *fh, SV *callback = &PL_sv_undef)
1031	PPCODE:	1410	PPCODE:
1032	{	1411	{
1033	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1412	static int close_fd = -1; /* dummy fd to close fds via dup2 */
1034	int fd = s_fileno_croak (fh, 0);	1413	int fd = s_fileno_croak (fh, 0);
1035	dREQ;	1414	dREQ;
1036		1415
1037	if (close_pipe < 0)	1416	if (expect_false (close_fd < 0))
1038	{	1417	{
1039	int pipefd [2];	1418	int pipefd [2];
1040		1419
		1420	if (
		1421	#ifdef _WIN32
		1422	_pipe (pipefd, 1, _O_BINARY) < 0
		1423	#else
1041	if (pipe (pipefd) < 0	1424	pipe (pipefd) < 0
1042	|| close (pipefd [1]) < 0
1043	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1425	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1426	#endif
		1427	|| close (pipefd [1]) < 0
		1428	)
1044	abort (); /*D*/	1429	abort (); /*D*/
1045		1430
1046	close_pipe = pipefd [0];	1431	close_fd = pipefd [0];
1047	}	1432	}
1048		1433
1049	req->type = EIO_DUP2;	1434	req->type = EIO_DUP2;
1050	req->int1 = close_pipe;	1435	req->int1 = close_fd;
1051	req->sv2 = newSVsv (fh);	1436	req->sv2 = newSVsv (fh);
1052	req->int2 = fd;	1437	req->int2 = fd;
1053		1438
1054	REQ_SEND (req);	1439	REQ_SEND;
1055	}	1440	}
1056		1441
1057	void	1442	void
		1443	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1444	PPCODE:
		1445	{
		1446	int fd = s_fileno_croak (fh, 0);
		1447	dREQ;
		1448
		1449	req->type = EIO_SEEK;
		1450	req->sv1 = newSVsv (fh);
		1451	req->int1 = fd;
		1452	req->offs = SvVAL64 (offset);
		1453	req->int2 = whence;
		1454
		1455	REQ_SEND;
		1456	}
		1457
		1458	void
1058	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1459	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
1059	ALIAS:	1460	ALIAS:
1060	aio_read = EIO_READ	1461	aio_read = EIO_READ
1061	aio_write = EIO_WRITE	1462	aio_write = EIO_WRITE
1062	PPCODE:	1463	PPCODE:
1063	{	1464	{
…		…
1079	len = svlen - dataoffset;	1480	len = svlen - dataoffset;
1080	}	1481	}
1081	else	1482	else
1082	{	1483	{
1083	/* read: check type and grow scalar as necessary */	1484	/* read: check type and grow scalar as necessary */
1084	SvUPGRADE (data, SVt_PV);	1485	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
1085	svptr = SvGROW (data, len + dataoffset + 1);	1486	svptr = sv_grow (data, len + dataoffset + 1);
		1487	else if (SvCUR (data) < len + dataoffset)
		1488	croak ("length + dataoffset outside of scalar, and cannot grow");
1086	}	1489	}
1087		1490
1088	{	1491	{
1089	dREQ;	1492	dREQ;
1090		1493
…		…
1106	REQ_SEND;	1509	REQ_SEND;
1107	}	1510	}
1108	}	1511	}
1109		1512
1110	void	1513	void
		1514	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1515	ALIAS:
		1516	aio_ioctl = EIO_IOCTL
		1517	aio_fcntl = EIO_FCNTL
		1518	PPCODE:
		1519	{
		1520	int fd = s_fileno_croak (fh, 0);
		1521	char *svptr;
		1522
		1523	if (SvPOK (arg) || !SvNIOK (arg))
		1524	{
		1525	STRLEN svlen;
		1526	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1527	#ifdef IOCPARM_LEN
		1528	STRLEN need = IOCPARM_LEN (request);
		1529	#else
		1530	STRLEN need = 256;
		1531	#endif
		1532
		1533	if (svlen < need)
		1534	svptr = SvGROW (arg, need);
		1535	}
		1536	else
		1537	svptr = (char *)SvIV (arg);
		1538
		1539	{
		1540	dREQ;
		1541
		1542	req->type = ix;
		1543	req->sv1 = newSVsv (fh);
		1544	req->int1 = fd;
		1545	req->int2 = (long)request;
		1546	req->sv2 = SvREFCNT_inc (arg);
		1547	req->ptr2 = svptr;
		1548
		1549	REQ_SEND;
		1550	}
		1551	}
		1552
		1553	void
1111	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1554	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1112	ALIAS:	1555	ALIAS:
1113	aio_readlink = EIO_READLINK	1556	aio_readlink = EIO_READLINK
1114	aio_realpath = EIO_REALPATH	1557	aio_realpath = EIO_REALPATH
1115	PPCODE:	1558	PPCODE:
1116	{	1559	{
1117	SV *data;
1118	dREQ;	1560	dREQ;
1119		1561
1120	req->type = ix;	1562	req->type = ix;
1121	req->sv1 = newSVsv (path);	1563	req_set_path1 (req, pathname);
1122	req->ptr1 = SvPVbyte_nolen (req->sv1);
1123		1564
1124	REQ_SEND;	1565	REQ_SEND;
1125	}	1566	}
1126		1567
1127	void	1568	void
1128	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1569	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1129	PPCODE:	1570	PPCODE:
1130	{	1571	{
1131	int ifd = s_fileno_croak (in_fh , 0);	1572	int ifd = s_fileno_croak (in_fh , 0);
1132	int ofd = s_fileno_croak (out_fh, 1);	1573	int ofd = s_fileno_croak (out_fh, 1);
1133	dREQ;	1574	dREQ;
1134		1575
1135	req->type = EIO_SENDFILE;	1576	req->type = EIO_SENDFILE;
1136	req->sv1 = newSVsv (out_fh);	1577	req->sv1 = newSVsv (out_fh);
1137	req->int1 = ofd;	1578	req->int1 = ofd;
…		…
1142		1583
1143	REQ_SEND;	1584	REQ_SEND;
1144	}	1585	}
1145		1586
1146	void	1587	void
1147	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1588	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1148	PPCODE:	1589	PPCODE:
1149	{	1590	{
1150	int fd = s_fileno_croak (fh, 0);	1591	int fd = s_fileno_croak (fh, 0);
1151	dREQ;	1592	dREQ;
1152		1593
1153	req->type = EIO_READAHEAD;	1594	req->type = EIO_READAHEAD;
1154	req->sv1 = newSVsv (fh);	1595	req->sv1 = newSVsv (fh);
1155	req->int1 = fd;	1596	req->int1 = fd;
…		…
1158		1599
1159	REQ_SEND;	1600	REQ_SEND;
1160	}	1601	}
1161		1602
1162	void	1603	void
1163	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1604	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1164	ALIAS:	1605	ALIAS:
1165	aio_stat = EIO_STAT	1606	aio_stat = EIO_STAT
1166	aio_lstat = EIO_LSTAT	1607	aio_lstat = EIO_LSTAT
1167	aio_statvfs = EIO_STATVFS	1608	aio_statvfs = EIO_STATVFS
1168	PPCODE:	1609	PPCODE:
1169	{	1610	{
1170	dREQ;	1611	dREQ;
1171		1612
1172	req->sv1 = newSVsv (fh_or_path);	1613	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1173
1174	if (SvPOK (req->sv1))
1175	{
1176	req->type = ix;
1177	req->ptr1 = SvPVbyte_nolen (req->sv1);
1178	}
1179	else
1180	{
1181	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1182	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1183	}
1184		1614
1185	REQ_SEND;	1615	REQ_SEND;
1186	}	1616	}
1187		1617
1188	UV	1618	UV
1189	major (UV dev)	1619	major (UV dev)
1190	ALIAS:	1620	ALIAS:
1191	minor = 1	1621	minor = 1
1192	CODE:	1622	CODE:
1193	RETVAL = ix ? major (dev) : minor (dev);	1623	RETVAL = ix ? minor (dev) : major (dev);
1194	OUTPUT:	1624	OUTPUT:
1195	RETVAL	1625	RETVAL
1196		1626
1197	UV	1627	UV
1198	makedev (UV maj, UV min)	1628	makedev (UV maj, UV min)
…		…
1200	RETVAL = makedev (maj, min);	1630	RETVAL = makedev (maj, min);
1201	OUTPUT:	1631	OUTPUT:
1202	RETVAL	1632	RETVAL
1203		1633
1204	void	1634	void
1205	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1635	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1206	PPCODE:	1636	PPCODE:
1207	{	1637	{
1208	dREQ;	1638	dREQ;
1209		1639
1210	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1640	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1211	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1641	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1212	req->sv1 = newSVsv (fh_or_path);	1642	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1213
1214	if (SvPOK (req->sv1))
1215	{
1216	req->type = EIO_UTIME;
1217	req->ptr1 = SvPVbyte_nolen (req->sv1);
1218	}
1219	else
1220	{
1221	req->type = EIO_FUTIME;
1222	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1223	}
1224		1643
1225	REQ_SEND;	1644	REQ_SEND;
1226	}	1645	}
1227		1646
1228	void	1647	void
1229	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1648	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1230	PPCODE:	1649	PPCODE:
1231	{	1650	{
1232	dREQ;	1651	dREQ;
1233		1652
1234	req->sv1 = newSVsv (fh_or_path);
1235	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1653	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1236		1654	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1237	if (SvPOK (req->sv1))
1238	{
1239	req->type = EIO_TRUNCATE;
1240	req->ptr1 = SvPVbyte_nolen (req->sv1);
1241	}
1242	else
1243	{
1244	req->type = EIO_FTRUNCATE;
1245	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1246	}
1247		1655
1248	REQ_SEND;	1656	REQ_SEND;
1249	}	1657	}
1250		1658
1251	void	1659	void
1252	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1660	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1253	ALIAS:
1254	aio_chmod = EIO_CHMOD
1255	aio_mkdir = EIO_MKDIR
1256	PPCODE:	1661	PPCODE:
1257	{	1662	{
1258	dREQ;	1663	dREQ;
1259		1664
1260	req->int2 = mode;	1665	req->int2 = mode;
1261	req->sv1 = newSVsv (fh_or_path);	1666	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1262
1263	if (SvPOK (req->sv1))
1264	{
1265	req->type = ix;
1266	req->ptr1 = SvPVbyte_nolen (req->sv1);
1267	}
1268	else
1269	{
1270	req->type = EIO_FCHMOD;
1271	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1272	}
1273		1667
1274	REQ_SEND;	1668	REQ_SEND;
1275	}	1669	}
1276		1670
1277	void	1671	void
1278	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1672	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1279	PPCODE:	1673	PPCODE:
1280	{	1674	{
1281	dREQ;	1675	dREQ;
1282		1676
1283	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1677	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1284	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1678	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1285	req->sv1 = newSVsv (fh_or_path);	1679	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1286
1287	if (SvPOK (req->sv1))
1288	{
1289	req->type = EIO_CHOWN;
1290	req->ptr1 = SvPVbyte_nolen (req->sv1);
1291	}
1292	else
1293	{
1294	req->type = EIO_FCHOWN;
1295	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1296	}
1297		1680
1298	REQ_SEND;	1681	REQ_SEND;
1299	}	1682	}
1300		1683
1301	void	1684	void
1302	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1685	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1303	PPCODE:	1686	PPCODE:
1304	{	1687	{
1305	dREQ;	1688	dREQ;
1306		1689
1307	req->type = EIO_READDIR;	1690	req->type = EIO_READDIR;
1308	req->sv1 = newSVsv (pathname);
1309	req->ptr1 = SvPVbyte_nolen (req->sv1);
1310	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1691	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1311		1692
1312	if (flags & EIO_READDIR_DENTS)	1693	if (flags & EIO_READDIR_DENTS)
1313	req->int1 |= EIO_READDIR_CUSTOM2;	1694	req->int1 |= EIO_READDIR_CUSTOM2;
1314		1695
		1696	req_set_path1 (req, pathname);
		1697
1315	REQ_SEND;	1698	REQ_SEND;
1316	}	1699	}
1317		1700
1318	void	1701	void
		1702	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1703	PPCODE:
		1704	{
		1705	dREQ;
		1706
		1707	req->type = EIO_MKDIR;
		1708	req->int2 = mode;
		1709	req_set_path1 (req, pathname);
		1710
		1711	REQ_SEND;
		1712	}
		1713
		1714	void
1319	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1715	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1320	ALIAS:	1716	ALIAS:
1321	aio_unlink = EIO_UNLINK	1717	aio_unlink = EIO_UNLINK
1322	aio_rmdir = EIO_RMDIR	1718	aio_rmdir = EIO_RMDIR
1323	aio_readdir = EIO_READDIR	1719	aio_readdir = EIO_READDIR
1324	PPCODE:	1720	PPCODE:
1325	{	1721	{
1326	dREQ;	1722	dREQ;
1327		1723
1328	req->type = ix;	1724	req->type = ix;
1329	req->sv1 = newSVsv (pathname);	1725	req_set_path1 (req, pathname);
1330	req->ptr1 = SvPVbyte_nolen (req->sv1);
1331		1726
1332	REQ_SEND;	1727	REQ_SEND;
1333	}	1728	}
1334		1729
1335	void	1730	void
1336	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1731	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1337	ALIAS:	1732	ALIAS:
1338	aio_link = EIO_LINK	1733	aio_link = EIO_LINK
1339	aio_symlink = EIO_SYMLINK	1734	aio_symlink = EIO_SYMLINK
1340	aio_rename = EIO_RENAME	1735	aio_rename = EIO_RENAME
1341	PPCODE:	1736	PPCODE:
1342	{	1737	{
		1738	eio_wd wd2 = 0;
1343	dREQ;	1739	dREQ;
1344		1740
1345	req->type = ix;	1741	req->type = ix;
1346	req->sv1 = newSVsv (oldpath);	1742	req_set_path1 (req, oldpath);
1347	req->ptr1 = SvPVbyte_nolen (req->sv1);	1743	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1348	req->sv2 = newSVsv (newpath);	1744	req->int3 = (long)wd2;
1349	req->ptr2 = SvPVbyte_nolen (req->sv2);
1350		1745
1351	REQ_SEND;	1746	REQ_SEND;
1352	}	1747	}
1353		1748
1354	void	1749	void
		1750	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1751	PPCODE:
		1752	{
		1753	eio_wd wd2 = 0;
		1754	dREQ;
		1755
		1756	req->type = EIO_RENAME;
		1757	req_set_path1 (req, oldpath);
		1758	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1759	req->int2 = flags;
		1760	req->int3 = (long)wd2;
		1761
		1762	REQ_SEND;
		1763	}
		1764
		1765	void
1355	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1766	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1356	PPCODE:	1767	PPCODE:
1357	{	1768	{
1358	dREQ;	1769	dREQ;
1359		1770
1360	req->type = EIO_MKNOD;	1771	req->type = EIO_MKNOD;
1361	req->sv1 = newSVsv (pathname);
1362	req->ptr1 = SvPVbyte_nolen (req->sv1);
1363	req->int2 = (mode_t)mode;	1772	req->int2 = (mode_t)mode;
1364	req->offs = dev;	1773	req->offs = dev;
		1774	req_set_path1 (req, pathname);
1365		1775
1366	REQ_SEND;	1776	REQ_SEND;
1367	}	1777	}
1368		1778
1369	void	1779	void
1370	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1780	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1371	ALIAS:	1781	ALIAS:
1372	aio_mtouch = EIO_MTOUCH	1782	aio_mtouch = EIO_MTOUCH
1373	aio_msync = EIO_MSYNC	1783	aio_msync = EIO_MSYNC
1374	PPCODE:	1784	PPCODE:
1375	{	1785	{
1376	STRLEN svlen;	1786	STRLEN svlen;
1377	char *svptr = SvPVbyte (data, svlen);	1787	char *svptr = SvPVbyte (data, svlen);
1378	UV len = SvUV (length);	1788	UV len = SvUV (length);
		1789
		1790	if (flags < 0)
		1791	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1379		1792
1380	if (offset < 0)	1793	if (offset < 0)
1381	offset += svlen;	1794	offset += svlen;
1382		1795
1383	if (offset < 0 || offset > svlen)	1796	if (offset < 0 || offset > svlen)
…		…
1398	REQ_SEND;	1811	REQ_SEND;
1399	}	1812	}
1400	}	1813	}
1401		1814
1402	void	1815	void
1403	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1816	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1404	PPCODE:	1817	PPCODE:
1405	{	1818	{
1406	STRLEN svlen;	1819	STRLEN svlen;
1407	char *svptr = SvPVbyte (data, svlen);	1820	char *svptr = SvPVbyte (data, svlen);
1408	UV len = SvUV (length);	1821	UV len = SvUV (length);
…		…
1427	REQ_SEND;	1840	REQ_SEND;
1428	}	1841	}
1429	}	1842	}
1430		1843
1431	void	1844	void
1432	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1845	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1433	PPCODE:	1846	PPCODE:
1434	{	1847	{
1435	dREQ;	1848	dREQ;
1436		1849
1437	req->type = EIO_MLOCKALL;	1850	req->type = EIO_MLOCKALL;
…		…
1439		1852
1440	REQ_SEND;	1853	REQ_SEND;
1441	}	1854	}
1442		1855
1443	void	1856	void
		1857	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1858	PPCODE:
		1859	{
		1860	int fd = s_fileno_croak (fh, 0);
		1861	dREQ;
		1862
		1863	req->type = EIO_CUSTOM;
		1864	req->sv1 = newSVsv (fh);
		1865	req->int1 = fd;
		1866
		1867	req->feed = fiemap;
		1868	#if HAVE_FIEMAP
		1869	/* keep our fingers crossed that the next two types are 64 bit */
		1870	req->offs = start;
		1871	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1872	req->int2 = flags;
		1873	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1874	#endif
		1875
		1876	REQ_SEND;
		1877	}
		1878
		1879	void
		1880	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1881	PPCODE:
		1882	{
		1883	char *svptr = 0;
		1884
		1885	sv_clear_foreign (data);
		1886
		1887	if (length) /* known length, directly read into scalar */
		1888	{
		1889	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1890	svptr = sv_grow (data, length + 1);
		1891	else if (SvCUR (data) < length)
		1892	croak ("length outside of scalar, and cannot grow");
		1893	else
		1894	svptr = SvPVbyte_nolen (data);
		1895	}
		1896
		1897	{
		1898	dREQ;
		1899
		1900	req->type = EIO_SLURP;
		1901	req_set_path1 (req, pathname);
		1902	req->offs = offset;
		1903	req->size = length;
		1904	req->sv2 = SvREFCNT_inc (data);
		1905	req->ptr2 = svptr;
		1906
		1907	if (!SvREADONLY (data))
		1908	{
		1909	SvREADONLY_on (data);
		1910	req->flags |= FLAG_SV2_RO_OFF;
		1911	}
		1912
		1913	REQ_SEND;
		1914	}
		1915	}
		1916
		1917	void
1444	aio_busy (double delay, SV *callback=&PL_sv_undef)	1918	aio_busy (double delay, SV *callback = &PL_sv_undef)
1445	PPCODE:	1919	PPCODE:
1446	{	1920	{
1447	dREQ;	1921	dREQ;
1448		1922
1449	req->type = EIO_BUSY;	1923	req->type = EIO_BUSY;
…		…
1451		1925
1452	REQ_SEND;	1926	REQ_SEND;
1453	}	1927	}
1454		1928
1455	void	1929	void
1456	aio_group (SV *callback=&PL_sv_undef)	1930	aio_group (SV *callback = &PL_sv_undef)
1457	PPCODE:	1931	PPCODE:
1458	{	1932	{
1459	dREQ;	1933	dREQ;
1460		1934
1461	req->type = EIO_GROUP;	1935	req->type = EIO_GROUP;
1462		1936
		1937	PUTBACK;
1463	req_submit (req);	1938	req_submit (req);
		1939	SPAGAIN;
		1940
1464	XPUSHs (req_sv (req, aio_grp_stash));	1941	XPUSHs (req_sv (req, aio_grp_stash));
1465	}	1942	}
1466		1943
1467	void	1944	void
1468	aio_nop (SV *callback=&PL_sv_undef)	1945	aio_nop (SV *callback = &PL_sv_undef)
1469	ALIAS:	1946	ALIAS:
1470	aio_nop = EIO_NOP	1947	aio_nop = EIO_NOP
1471	aio_sync = EIO_SYNC	1948	aio_sync = EIO_SYNC
1472	PPCODE:	1949	PPCODE:
1473	{	1950	{
…		…
1477		1954
1478	REQ_SEND;	1955	REQ_SEND;
1479	}	1956	}
1480		1957
1481	int	1958	int
1482	aioreq_pri (int pri = 0)	1959	aioreq_pri (int pri = NO_INIT)
1483	CODE:	1960	CODE:
1484	RETVAL = next_pri;	1961	RETVAL = next_pri;
1485	if (items > 0)	1962	if (items > 0)
1486	{	1963	{
1487	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1964	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1569	CODE:	2046	CODE:
1570	RETVAL = posix_fadvise (fh, offset, length, advice);	2047	RETVAL = posix_fadvise (fh, offset, length, advice);
1571	OUTPUT:	2048	OUTPUT:
1572	RETVAL	2049	RETVAL
1573		2050
1574	ssize_t	2051	IV
1575	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	2052	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1576	CODE:	2053	CODE:
1577	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2054	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1578	OUTPUT:	2055	OUTPUT:
1579	RETVAL	2056	RETVAL
1580		2057
1581	void	2058	void
1582	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2059	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1583	PPCODE:	2060	PPCODE:
1584	sv_unmagic (scalar, MMAP_MAGIC);	2061	sv_clear_foreign (scalar);
1585	{	2062	{
1586	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2063	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1587	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2064	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1588	if (addr == (void *)-1)	2065	if (addr == (void *)-1)
1589	XSRETURN_NO;	2066	XSRETURN_NO;
1590		2067
1591	sv_force_normal (scalar);	2068	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1592
1593	/* we store the length in mg_obj, as namlen is I32 :/ */
1594	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1595	->mg_obj = (SV *)length;
1596
1597	SvUPGRADE (scalar, SVt_PV); /* nop... */
1598		2069
1599	if (!(prot & PROT_WRITE))	2070	if (!(prot & PROT_WRITE))
1600	SvREADONLY_on (scalar);	2071	SvREADONLY_on (scalar);
1601		2072
1602	if (SvLEN (scalar))
1603	Safefree (SvPVX (scalar));
1604
1605	SvPVX (scalar) = (char *)addr;
1606	SvCUR_set (scalar, length);
1607	SvLEN_set (scalar, 0);
1608	SvPOK_only (scalar);
1609
1610	XSRETURN_YES;	2073	XSRETURN_YES;
1611	}	2074	}
1612		2075
1613	void	2076	void
1614	munmap (SV *scalar)	2077	munmap (SV *scalar)
1615	CODE:	2078	CODE:
1616	sv_unmagic (scalar, MMAP_MAGIC);	2079	sv_clear_foreign (scalar);
		2080
		2081	SV *
		2082	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2083	CODE:
		2084	{
		2085	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2086	void *new;
		2087
		2088	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2089	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2090
		2091	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2092
		2093	RETVAL = &PL_sv_no;
		2094
		2095	if (new != (void *)-1)
		2096	{
		2097	RETVAL = new == (void *)mg->mg_ptr
		2098	? newSVpvn ("0 but true", 10)
		2099	: &PL_sv_yes;
		2100
		2101	mg->mg_ptr = (char *)new;
		2102	mg->mg_obj = (SV *)new_length;
		2103
		2104	SvPVX (scalar) = mg->mg_ptr;
		2105	SvCUR_set (scalar, new_length);
		2106	}
		2107	}
		2108	OUTPUT:
		2109	RETVAL
1617		2110
1618	int	2111	int
1619	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2112	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1620	ALIAS:	2113	ALIAS:
1621	mprotect = 1	2114	mprotect = 1
1622	CODE:	2115	CODE:
1623	{	2116	{
1624	STRLEN svlen;	2117	STRLEN svlen;
1625	void *addr = SvPVbyte (scalar, svlen);	2118	void *addr = SvPVbyte (scalar, svlen);
1626	size_t len = SvUV (length);	2119	STRLEN len = SvUV (length);
1627		2120
1628	if (offset < 0)	2121	if (offset < 0)
1629	offset += svlen;	2122	offset += svlen;
1630		2123
1631	if (offset < 0 || offset > svlen)	2124	if (offset < 0 || offset > svlen)
…		…
1645	}	2138	}
1646	OUTPUT:	2139	OUTPUT:
1647	RETVAL	2140	RETVAL
1648		2141
1649	int	2142	int
1650	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2143	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1651	CODE:	2144	CODE:
1652	{	2145	{
1653	STRLEN svlen;	2146	STRLEN svlen;
1654	void *addr = SvPVbyte (scalar, svlen);	2147	void *addr = SvPVbyte (scalar, svlen);
1655	size_t len = SvUV (length);	2148	size_t len = SvUV (length);
1656		2149
1657	if (offset < 0)	2150	if (offset < 0)
1658	offset += svlen;	2151	offset += svlen;
1659		2152
…		…
1666	addr = (void *)(((intptr_t)addr) + offset);	2159	addr = (void *)(((intptr_t)addr) + offset);
1667	eio_page_align (&addr, &len);	2160	eio_page_align (&addr, &len);
1668	#if _POSIX_MEMLOCK_RANGE	2161	#if _POSIX_MEMLOCK_RANGE
1669	RETVAL = munlock (addr, len);	2162	RETVAL = munlock (addr, len);
1670	#else	2163	#else
1671	RETVAL = ((errno = ENOSYS), -1);	2164	RETVAL = EIO_ENOSYS ();
1672	#endif	2165	#endif
1673	}	2166	}
1674	OUTPUT:	2167	OUTPUT:
1675	RETVAL	2168	RETVAL
1676		2169
…		…
1678	munlockall ()	2171	munlockall ()
1679	CODE:	2172	CODE:
1680	#if _POSIX_MEMLOCK	2173	#if _POSIX_MEMLOCK
1681	munlockall ();	2174	munlockall ();
1682	#else	2175	#else
1683	RETVAL = -1;	2176	RETVAL = EIO_ENOSYS ();
1684	errno = ENOSYS;
1685	#endif	2177	#endif
1686	OUTPUT:	2178	OUTPUT:
1687	RETVAL	2179	RETVAL
		2180
		2181	int
		2182	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2183	CODE:
		2184	{
		2185	#if HAVE_LINUX_SPLICE
		2186	loff_t off_in_, off_out_;
		2187	RETVAL = splice (
		2188	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2189	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2190	length, flags
		2191	);
		2192	#else
		2193	RETVAL = EIO_ENOSYS ();
		2194	#endif
		2195	}
		2196	OUTPUT:
		2197	RETVAL
		2198
		2199	int
		2200	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2201	CODE:
		2202	#if HAVE_LINUX_SPLICE
		2203	RETVAL = tee (rfh, wfh, length, flags);
		2204	#else
		2205	RETVAL = EIO_ENOSYS ();
		2206	#endif
		2207	OUTPUT:
		2208	RETVAL
		2209
		2210	int
		2211	pipesize (aio_rfd rfh, int new_size = -1)
		2212	PROTOTYPE: $;$
		2213	CODE:
		2214	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2215	if (new_size >= 0)
		2216	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2217	else
		2218	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2219	#else
		2220	errno = ENOSYS;
		2221	RETVAL = -1;
		2222	#endif
		2223	OUTPUT:
		2224	RETVAL
		2225
		2226	void
		2227	pipe2 (int flags = 0)
		2228	PROTOTYPE: ;$
		2229	PPCODE:
		2230	{
		2231	int fd[2];
		2232	int res;
		2233
		2234	if (flags)
		2235	#if HAVE_PIPE2
		2236	res = pipe2 (fd, flags);
		2237	#else
		2238	res = (errno = ENOSYS, -1);
		2239	#endif
		2240	else
		2241	res = pipe (fd);
		2242
		2243	if (!res)
		2244	{
		2245	EXTEND (SP, 2);
		2246	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2247	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2248	}
		2249	}
		2250
		2251	void
		2252	eventfd (unsigned int initval = 0, int flags = 0)
		2253	PPCODE:
		2254	{
		2255	int fd;
		2256	#if HAVE_EVENTFD
		2257	fd = eventfd (initval, flags);
		2258	#else
		2259	fd = (errno = ENOSYS, -1);
		2260	#endif
		2261
		2262	XPUSHs (newmortalFH (fd, O_RDWR));
		2263	}
		2264
		2265	void
		2266	timerfd_create (int clockid, int flags = 0)
		2267	PPCODE:
		2268	{
		2269	int fd;
		2270	#if HAVE_TIMERFD
		2271	fd = timerfd_create (clockid, flags);
		2272	#else
		2273	fd = (errno = ENOSYS, -1);
		2274	#endif
		2275
		2276	XPUSHs (newmortalFH (fd, O_RDWR));
		2277	}
		2278
		2279	void
		2280	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2281	PPCODE:
		2282	{
		2283	int fd = s_fileno_croak (fh, 0);
		2284	#if HAVE_TIMERFD
		2285	int res;
		2286	struct itimerspec its, ots;
		2287
		2288	ts_set (&its.it_interval, interval);
		2289	ts_set (&its.it_value , value);
		2290	res = timerfd_settime (fd, flags, &its, &ots);
		2291
		2292	if (!res)
		2293	{
		2294	EXTEND (SP, 2);
		2295	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2296	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2297	}
		2298	#else
		2299	errno = ENOSYS;
		2300	#endif
		2301	}
		2302
		2303	void
		2304	timerfd_gettime (SV *fh)
		2305	PPCODE:
		2306	{
		2307	int fd = s_fileno_croak (fh, 0);
		2308	#if HAVE_TIMERFD
		2309	int res;
		2310	struct itimerspec ots;
		2311	res = timerfd_gettime (fd, &ots);
		2312
		2313	if (!res)
		2314	{
		2315	EXTEND (SP, 2);
		2316	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2317	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2318	}
		2319	#else
		2320	errno = ENOSYS;
		2321	#endif
		2322	}
		2323
		2324	UV
		2325	get_fdlimit ()
		2326	CODE:
		2327	#if HAVE_RLIMITS
		2328	struct rlimit rl;
		2329	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2330	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2331	#endif
		2332	XSRETURN_UNDEF;
		2333	OUTPUT:
		2334	RETVAL
		2335
		2336	void
		2337	min_fdlimit (UV limit = 0x7fffffffU)
		2338	CODE:
		2339	{
		2340	#if HAVE_RLIMITS
		2341	struct rlimit rl;
		2342	rlim_t orig_rlim_max;
		2343	UV bit;
		2344
		2345	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2346	goto fail;
		2347
		2348	if (rl.rlim_cur == RLIM_INFINITY)
		2349	XSRETURN_YES;
		2350
		2351	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2352
		2353	if (rl.rlim_cur < limit)
		2354	{
		2355	rl.rlim_cur = limit;
		2356
		2357	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2358	rl.rlim_max = rl.rlim_cur;
		2359	}
		2360
		2361	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2362	XSRETURN_YES;
		2363
		2364	if (errno == EPERM)
		2365	{
		2366	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2367	/* our limit overflows a system-wide limit */
		2368	/* try an adaptive algorithm, but do not lower the hardlimit */
		2369	rl.rlim_max = 0;
		2370	for (bit = 0x40000000U; bit; bit >>= 1)
		2371	{
		2372	rl.rlim_max |= bit;
		2373	rl.rlim_cur = rl.rlim_max;
		2374
		2375	/* nevr decrease the hard limit */
		2376	if (rl.rlim_max < orig_rlim_max)
		2377	break;
		2378
		2379	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2380	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2381	}
		2382
		2383	/* now, raise the soft limit to the max permitted */
		2384	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2385	{
		2386	rl.rlim_cur = rl.rlim_max;
		2387	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2388	errno = EPERM;
		2389	}
		2390	}
		2391	#endif
		2392	fail:
		2393	XSRETURN_UNDEF;
		2394	}
1688		2395
1689	void _on_next_submit (SV *cb)	2396	void _on_next_submit (SV *cb)
1690	CODE:	2397	CODE:
1691	SvREFCNT_dec (on_next_submit);	2398	SvREFCNT_dec (on_next_submit);
1692	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2399	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1693		2400
1694	PROTOTYPES: DISABLE	2401	PROTOTYPES: DISABLE
1695		2402
		2403	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2404
		2405	BOOT:
		2406	{
		2407	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2408	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2409	}
		2410
		2411	void
		2412	DESTROY (SV *self)
		2413	CODE:
		2414	{
		2415	aio_wd wd = SvAIO_WD (self);
		2416	#if HAVE_AT
		2417	{
		2418	SV *callback = &PL_sv_undef;
		2419	dREQ; /* clobbers next_pri :/ */
		2420	next_pri = req->pri; /* restore next_pri */
		2421	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2422	req->type = EIO_WD_CLOSE;
		2423	req->wd = wd;
		2424	REQ_SEND;
		2425	}
		2426	#else
		2427	eio_wd_close_sync (wd);
		2428	#endif
		2429	}
		2430
1696	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2431	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1697		2432
1698	void	2433	void
1699	cancel (aio_req_ornot req)	2434	cancel (aio_req_ornot req)
1700	CODE:	2435	CODE:
1701	eio_cancel (req);	2436	eio_cancel (req);
1702		2437
1703	void	2438	void
1704	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2439	cb (aio_req_ornot req, SV *callback = NO_INIT)
1705	PPCODE:	2440	PPCODE:
1706	{	2441	{
1707	if (GIMME_V != G_VOID)	2442	if (GIMME_V != G_VOID)
1708	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2443	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1709		2444
1710	if (items > 1)	2445	if (items > 1)
1711	{	2446	{
1712	SV *cb_cv =get_cb (callback);	2447	SV *cb_cv = get_cb (callback);
1713		2448
1714	SvREFCNT_dec (req->callback);	2449	SvREFCNT_dec (req->callback);
1715	req->callback = SvREFCNT_inc (cb_cv);	2450	req->callback = SvREFCNT_inc (cb_cv);
1716	}	2451	}
1717	}	2452	}
…		…
1774	limit (aio_req grp, int limit)	2509	limit (aio_req grp, int limit)
1775	CODE:	2510	CODE:
1776	eio_grp_limit (grp, limit);	2511	eio_grp_limit (grp, limit);
1777		2512
1778	void	2513	void
1779	feed (aio_req grp, SV *callback=&PL_sv_undef)	2514	feed (aio_req grp, SV *callback = &PL_sv_undef)
1780	CODE:	2515	CODE:
1781	{	2516	{
1782	SvREFCNT_dec (grp->sv2);	2517	SvREFCNT_dec (grp->sv2);
1783	grp->sv2 = newSVsv (callback);	2518	grp->sv2 = newSVsv (callback);
1784	grp->feed = aio_grp_feed;	2519	grp->feed = aio_grp_feed;

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