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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.173 by root, Mon Sep 13 01:59:05 2010 UTC vs.
Revision 1.266 by root, Tue Aug 14 14:03:14 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 <sys/statvfs.h>
17	#include <limits.h>	19	#include <limits.h>
18	#include <fcntl.h>	20	#include <fcntl.h>
19	#include <sched.h>	21	#include <sched.h>
20		22
		23	#if HAVE_SYS_MKDEV_H
		24	# include <sys/mkdev.h>
		25	#elif HAVE_SYS_SYSMACROS_H
		26	# include <sys/sysmacros.h>
		27	#endif
		28
21	#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES	29	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22	# include <sys/mman.h>	30	# include <sys/mman.h>
		31	#endif
		32
		33	/* the incompetent fool that created musl keeps __linux__, refuses
		34	* to implement any linux standard apis, and also has no way to test
		35	* for his broken iplementation. don't complain to me if this fails
		36	* for you.
		37	*/
		38	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		39	# include <linux/fs.h>
		40	# ifdef FS_IOC_FIEMAP
		41	# include <linux/types.h>
		42	# include <linux/fiemap.h>
		43	# define HAVE_FIEMAP 1
		44	# endif
23	#endif	45	#endif
24		46
25	/* perl namespace pollution */	47	/* perl namespace pollution */
26	#undef VERSION	48	#undef VERSION
27
28	#ifdef _WIN32
29
30	# define EIO_STRUCT_DIRENT Direntry_t
31	# undef malloc
32	# undef free
33
34	// perl overrides all those nice win32 functions
35	# undef open
36	# undef read
37	# undef write
38	# undef send
39	# undef recv
40	# undef stat
41	# undef fstat
42	# define lstat stat
43	# undef truncate
44	# undef ftruncate
45	# undef open
46	# undef close
47	# undef unlink
48	# undef rmdir
49	# undef rename
50	# undef lseek
51
52	# define chown(a,b,c) (errno = ENOSYS, -1)
53	# define fchown(a,b,c) (errno = ENOSYS, -1)
54	# define fchmod(a,b) (errno = ENOSYS, -1)
55	# define symlink(a,b) (errno = ENOSYS, -1)
56	# define readlink(a,b,c) (errno = ENOSYS, -1)
57	# define mknod(a,b,c) (errno = ENOSYS, -1)
58	# define truncate(a,b) (errno = ENOSYS, -1)
59	# define ftruncate(fd,o) chsize ((fd), (o))
60	# define fsync(fd) _commit (fd)
61	# define opendir(fd) (errno = ENOSYS, 0)
62	# define readdir(fd) (errno = ENOSYS, -1)
63	# define closedir(fd) (errno = ENOSYS, -1)
64	# define mkdir(a,b) mkdir (a)
65
66	#else
67
68	# include <sys/time.h>
69	# include <sys/select.h>
70	# include <unistd.h>
71	# include <utime.h>
72	# include <signal.h>
73	# define EIO_STRUCT_DIRENT struct dirent
74
75	#endif
76		49
77	/* perl stupidly overrides readdir and maybe others */	50	/* perl stupidly overrides readdir and maybe others */
78	/* with thread-unsafe versions, imagine that :( */	51	/* with thread-unsafe versions, imagine that :( */
79	#undef readdir	52	#undef readdir
80	#undef opendir	53	#undef opendir
81	#undef closedir	54	#undef closedir
82		55
		56	#ifdef _WIN32
		57
		58	// perl overrides all those nice libc functions
		59
		60	#undef malloc
		61	#undef free
		62	#undef open
		63	#undef read
		64	#undef write
		65	#undef send
		66	#undef recv
		67	#undef stat
		68	#undef lstat
		69	#undef fstat
		70	#undef truncate
		71	#undef ftruncate
		72	#undef open
		73	#undef link
		74	#undef close
		75	#undef unlink
		76	#undef mkdir
		77	#undef rmdir
		78	#undef rename
		79	#undef lseek
		80	#undef opendir
		81	#undef readdir
		82	#undef closedir
		83	#undef chmod
		84	#undef fchmod
		85	#undef dup
		86	#undef dup2
		87	#undef abort
		88	#undef pipe
		89
		90	#define EIO_STRUCT_STAT struct _stati64
83	#define EIO_STRUCT_STAT Stat_t	91	#define EIO_STRUCT_STATI64
84		92
85	/* use NV for 32 bit perls as it allows larger offsets */
86	#if IVSIZE >= 8
87	# define VAL64 IV
88	# define SvVAL64 SvIV
89	# define newSVval64 newSViv
90	#else	93	#else
91	# define VAL64 NV	94
92	# define SvVAL64 SvNV	95	#include <sys/time.h>
93	# define newSVval64 newSVnv	96	#include <sys/select.h>
		97	#include <unistd.h>
		98	#include <utime.h>
		99	#include <signal.h>
		100
		101	#define EIO_STRUCT_STAT Stat_t
		102
94	#endif	103	#endif
95		104
96	/*****************************************************************************/	105	/*****************************************************************************/
97		106
98	#if __GNUC__ >= 3	107	#if __GNUC__ >= 3
…		…
104	#define expect_false(expr) expect ((expr) != 0, 0)	113	#define expect_false(expr) expect ((expr) != 0, 0)
105	#define expect_true(expr) expect ((expr) != 0, 1)	114	#define expect_true(expr) expect ((expr) != 0, 1)
106		115
107	/*****************************************************************************/	116	/*****************************************************************************/
108		117
		118	#include "config.h"
		119
		120	#if HAVE_ST_XTIMENSEC
		121	# define ATIMENSEC PL_statcache.st_atimensec
		122	# define MTIMENSEC PL_statcache.st_mtimensec
		123	# define CTIMENSEC PL_statcache.st_ctimensec
		124	#elif HAVE_ST_XTIMESPEC
		125	# define ATIMENSEC PL_statcache.st_atim.tv_nsec
		126	# define MTIMENSEC PL_statcache.st_mtim.tv_nsec
		127	# define CTIMENSEC PL_statcache.st_ctim.tv_nsec
		128	#else
		129	# define ATIMENSEC 0
		130	# define MTIMENSEC 0
		131	# define CTIMENSEC 0
		132	#endif
		133
		134	#include "schmorp.h"
		135
		136	#if HAVE_EVENTFD
		137	# include <sys/eventfd.h>
		138	#endif
		139
		140	#if HAVE_TIMERFD
		141	# include <sys/timerfd.h>
		142	#endif
		143
		144	#if HAVE_RLIMITS
		145	#include <sys/time.h>
		146	#include <sys/resource.h>
		147	#endif
		148
109	typedef SV SV8; /* byte-sv, used for argument-checking */	149	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	150	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	151	typedef int aio_wfd; /* write file descriptor */
112		152
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	153	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		154
115	#define EIO_REQ_MEMBERS \	155	#define EIO_REQ_MEMBERS \
116	SV *callback; \	156	SV *callback; \
117	SV *sv1, *sv2; \	157	SV *sv1, *sv2; \
		158	SV *sv3, *sv4; \
118	STRLEN stroffset; \	159	STRLEN stroffset; \
119	SV *self;	160	SV *self;
120		161
121	#define EIO_NO_WRAPPERS 1	162	#define EIO_NO_WRAPPERS 1
122		163
123	#include "libeio/eio.h"	164	#include "libeio/eio.h"
124		165
125	#ifndef POSIX_FADV_NORMAL	166	static int req_invoke (eio_req *req);
126	# define POSIX_FADV_NORMAL 0	167	#define EIO_FINISH(req) req_invoke (req)
127	# define NO_FADVISE 1	168	static void req_destroy (eio_req *grp);
128	#endif	169	#define EIO_DESTROY(req) req_destroy (req)
129	#ifndef POSIX_FADV_SEQUENTIAL
130	# define POSIX_FADV_SEQUENTIAL 0
131	#endif
132	#ifndef POSIX_FADV_RANDOM
133	# define POSIX_FADV_RANDOM 0
134	#endif
135	#ifndef POSIX_FADV_NOREUSE
136	# define POSIX_FADV_NOREUSE 0
137	#endif
138	#ifndef POSIX_FADV_WILLNEED
139	# define POSIX_FADV_WILLNEED 0
140	#endif
141	#ifndef POSIX_FADV_DONTNEED
142	# define POSIX_FADV_DONTNEED 0
143	#endif
144		170
145	#if _XOPEN_SOURCE < 600 || NO_FADVISE	171	#include "libeio/eio.c"
		172
		173	#if !HAVE_POSIX_FADVISE
146	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */	174	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
147	#endif	175	#endif
148		176
149	#ifndef POSIX_MADV_NORMAL	177	#if !HAVE_POSIX_MADVISE
150	# define POSIX_MADV_NORMAL 0
151	# define NO_MADVISE 1
152	#endif
153	#ifndef POSIX_MADV_SEQUENTIAL
154	# define POSIX_MADV_SEQUENTIAL 0
155	#endif
156	#ifndef POSIX_MADV_RANDOM
157	# define POSIX_MADV_RANDOM 0
158	#endif
159	#ifndef POSIX_MADV_WILLNEED
160	# define POSIX_MADV_WILLNEED 0
161	#endif
162	#ifndef POSIX_MADV_DONTNEED
163	# define POSIX_MADV_DONTNEED 0
164	#endif
165
166	#if _XOPEN_SOURCE < 600 || NO_MADVISE
167	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	178	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
168	#endif
169
170	#ifndef PROT_NONE
171	# define PROT_NONE 0
172	#endif
173	#ifndef PROT_READ
174	# define PROT_READ 0
175	#endif
176	#ifndef PROT_WRITE
177	# define PROT_READ 0
178	#endif
179	#ifndef PROT_EXEC
180	# define PROT_EXEC 0
181	#endif
182
183	#ifndef ST_NODEV
184	# define ST_NODEV 0
185	#endif
186	#ifndef ST_NOEXEC
187	# define ST_NOEXEC 0
188	#endif
189	#ifndef ST_SYNCHRONOUS
190	# define ST_SYNCHRONOUS 0
191	#endif
192	#ifndef ST_MANDLOCK
193	# define ST_MANDLOCK 0
194	#endif
195	#ifndef ST_WRITE
196	# define ST_WRITE 0
197	#endif
198	#ifndef ST_APPEND
199	# define ST_APPEND 0
200	#endif
201	#ifndef ST_IMMUTABLE
202	# define ST_IMMUTABLE 0
203	#endif
204	#ifndef ST_NOATIME
205	# define ST_NOATIME 0
206	#endif
207	#ifndef ST_NODIRATIME
208	# define ST_NODIRATIME 0
209	#endif
210	#ifndef ST_RELATIME
211	# define ST_RELATIME 0
212	#endif	179	#endif
213		180
214	#ifndef MAP_ANONYMOUS	181	#ifndef MAP_ANONYMOUS
215	# ifdef MAP_ANON	182	# ifdef MAP_ANON
216	# define MAP_ANONYMOUS MAP_ANON	183	# define MAP_ANONYMOUS MAP_ANON
217	# else	184	# else
218	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	185	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
219	# endif	186	# endif
220	#endif	187	#endif
221	#ifndef MAP_HUGETLB
222	# define MAP_HUGETLB 0
223	#endif
224	#ifndef MAP_LOCKED
225	# define MAP_LOCKED 0
226	#endif
227	#ifndef MAP_NORESERVE
228	# define MAP_NORESERVE 0
229	#endif
230	#ifndef MAP_POPULATE
231	# define MAP_POPULATE 0
232	#endif
233	#ifndef MAP_NONBLOCK
234	# define MAP_NONBLOCK 0
235	#endif
236		188
		189	#ifndef makedev
		190	# define makedev(maj,min) (((maj) << 8) | (min))
		191	#endif
		192	#ifndef major
		193	# define major(dev) ((dev) >> 8)
		194	#endif
		195	#ifndef minor
		196	# define minor(dev) ((dev) & 0xff)
		197	#endif
		198
		199	/* solaris has a non-posix/unix compliant PAGESIZE that breaks compilation */
		200	#ifdef __sun
237	#ifndef PAGESIZE	201	# undef PAGESIZE
		202	#endif
		203
		204	#if PAGESIZE <= 0
238	# define PAGESIZE sysconf (_SC_PAGESIZE)	205	# define PAGESIZE sysconf (_SC_PAGESIZE)
239	#endif	206	#endif
240		207
241	static int req_invoke (eio_req *req);	208	/*****************************************************************************/
242	#define EIO_FINISH(req) req_invoke (req)	209
243	static void req_destroy (eio_req *grp);	210	#if !_POSIX_MAPPED_FILES
244	#define EIO_DESTROY(req) req_destroy (req)	211	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		212	# define munmap(addr,length) EIO_ENOSYS ()
		213	#endif
		214
		215	#if !_POSIX_MEMORY_PROTECTION
		216	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		217	#endif
		218
		219	#if !MREMAP_MAYMOVE
		220	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		221	#endif
		222
		223	#define FOREIGN_MAGIC PERL_MAGIC_ext
		224
		225	static int ecb_cold
		226	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		227	{
		228	int old_errno = errno;
		229	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		230	errno = old_errno;
		231
		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::mmap-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 mmap_vtbl = {
		247	0, 0, 0, 0, mmap_free
		248	};
		249
		250	static int ecb_cold
		251	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		252	{
		253	free (mg->mg_ptr);
		254	mg->mg_obj = 0; /* just in case */
		255
		256	SvREADONLY_off (sv);
		257
		258	if (SvPVX (sv) != mg->mg_ptr)
		259	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		260
		261	SvCUR_set (sv, 0);
		262	SvPVX (sv) = 0;
		263	SvOK_off (sv);
		264
		265	return 0;
		266	}
		267
		268	static MGVTBL sysfree_vtbl = {
		269	0, 0, 0, 0, sysfree_free
		270	};
		271
		272	/*****************************************************************************/
		273
		274	/* helper: set scalar to foreign ptr with custom free */
		275	static void
		276	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		277	{
		278	sv_force_normal (sv);
		279
		280	/* we store the length in mg_obj, as namlen is I32 :/ */
		281	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		282	->mg_obj = (SV *)length;
		283
		284	SvUPGRADE (sv, SVt_PV); /* nop... */
		285
		286	if (SvLEN (sv))
		287	Safefree (SvPVX (sv));
		288
		289	SvPVX (sv) = (char *)addr;
		290	SvCUR_set (sv, length);
		291	SvLEN_set (sv, 0);
		292	SvPOK_only (sv);
		293	}
		294
		295	static void
		296	sv_clear_foreign (SV *sv)
		297	{
		298	/* todo: iterate over magic and only free ours, but of course */
		299	/* the perl5porters will call that (correct) behaviour buggy */
		300	sv_unmagic (sv, FOREIGN_MAGIC);
		301	}
		302
		303	/*****************************************************************************/
		304
		305	/* defines all sorts of constants to 0 unless they are already defined */
		306	/* also provides const_iv_ and const_niv_ macros for them */
		307	#include "def0.h"
		308
		309	/*****************************************************************************/
		310
		311	static void
		312	fiemap (eio_req *req)
		313	{
		314	req->result = -1;
		315
		316	#if HAVE_FIEMAP
		317	/* assume some c99 */
		318	struct fiemap *fiemap = 0;
		319	size_t end_offset;
		320	int count = req->int3;
		321
		322	req->flags |= EIO_FLAG_PTR1_FREE;
		323
		324	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		325	/* increase in 3.5kb steps */
		326	if (count < 0)
		327	count = 8;
		328
		329	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		330	errno = ENOMEM;
		331	if (!fiemap)
		332	return;
		333
		334	req->ptr1 = fiemap;
		335
		336	fiemap->fm_start = req->offs;
		337	fiemap->fm_length = req->size;
		338	fiemap->fm_flags = req->int2;
		339	fiemap->fm_extent_count = count;
		340
		341	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		342	return;
		343
		344	if (req->int3 >= 0 /* not autosizing */
		345	|| !fiemap->fm_mapped_extents /* no more extents */
		346	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		347	goto done;
		348
		349	/* else we have to loop -
		350	* it would be tempting (actually I tried that first) to just query the
		351	* number of extents needed, but linux often feels like not returning all
		352	* extents, without telling us it left any out. this complicates
		353	* this quite a bit.
		354	*/
		355
		356	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		357
		358	for (;;)
		359	{
		360	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		361	char scratch[3072];
		362	struct fiemap *incmap = (struct fiemap *)scratch;
		363
		364	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		365	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		366	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		367	incmap->fm_flags = fiemap->fm_flags;
		368	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		369
		370	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		371	return;
		372
		373	if (!incmap->fm_mapped_extents)
		374	goto done;
		375
		376	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		377	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		378	errno = ENOMEM;
		379	if (!fiemap)
		380	return;
		381
		382	req->ptr1 = fiemap;
		383
		384	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		385	{
		386	struct fiemap_extent *e = incmap->fm_extents + count;
		387
		388	if (e->fe_logical + e->fe_length >= end_offset)
		389	goto done;
		390
		391	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		392
		393	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		394	goto done;
		395
		396	}
		397	}
		398
		399	done:
		400	req->result = 0;
		401
		402	#else
		403	errno = ENOSYS;
		404	#endif
		405	}
		406
		407	/*****************************************************************************/
245		408
246	enum {	409	enum {
247	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	410	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
248	};	411	};
249		412
250	#include "libeio/eio.c"
251
252	typedef eio_req *aio_req;	413	typedef eio_req *aio_req;
253	typedef eio_req *aio_req_ornot;	414	typedef eio_req *aio_req_ornot;
		415	typedef eio_wd aio_wd;
254		416
255	static SV *on_next_submit;	417	static SV *on_next_submit;
256	static int next_pri = EIO_PRI_DEFAULT;	418	static int next_pri = EIO_PRI_DEFAULT;
257	static int max_outstanding;	419	static int max_outstanding;
258		420
259	static s_epipe respipe;	421	static s_epipe respipe;
260		422
261	static void req_destroy (aio_req req);	423	static void req_destroy (aio_req req);
262	static void req_cancel (aio_req req);	424	static void req_cancel (aio_req req);
263		425
264	static void want_poll (void)	426	static void
		427	want_poll (void)
265	{	428	{
266	/* write a dummy byte to the pipe so fh becomes ready */	429	/* write a dummy byte to the pipe so fh becomes ready */
267	s_epipe_signal (&respipe);	430	s_epipe_signal (&respipe);
268	}	431	}
269		432
270	static void done_poll (void)	433	static void
		434	done_poll (void)
271	{	435	{
272	/* read any signals sent by the worker threads */	436	/* read any signals sent by the worker threads */
273	s_epipe_drain (&respipe);	437	s_epipe_drain (&respipe);
274	}	438	}
275		439
276	/* must be called at most once */	440	/* must be called at most once */
		441	static SV *
277	static SV *req_sv (aio_req req, HV *stash)	442	req_sv (aio_req req, HV *stash)
278	{	443	{
279	if (!req->self)	444	if (!req->self)
280	{	445	{
281	req->self = (SV *)newHV ();	446	req->self = (SV *)newHV ();
282	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	447	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
283	}	448	}
284		449
285	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	450	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
286	}	451	}
287		452
288	static aio_req SvAIO_REQ (SV *sv)	453	static SV *
		454	newSVaio_wd (aio_wd wd)
		455	{
		456	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		457	}
		458
		459	static aio_req
		460	SvAIO_REQ (SV *sv)
289	{	461	{
290	MAGIC *mg;	462	MAGIC *mg;
291		463
292	if (!SvROK (sv)	464	if (!SvROK (sv)
		465	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
293	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	466	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
294	&& SvSTASH (SvRV (sv)) != aio_req_stash	467	&& SvSTASH (SvRV (sv)) != aio_req_stash
295	&& !sv_derived_from (sv, "IO::AIO::REQ")))	468	&& !sv_derived_from (sv, "IO::AIO::REQ")))
296	croak ("object of class IO::AIO::REQ expected");	469	croak ("object of class IO::AIO::REQ expected");
297		470
298	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	471	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
299		472
300	return mg ? (aio_req)mg->mg_ptr : 0;	473	return mg ? (aio_req)mg->mg_ptr : 0;
301	}	474	}
302		475
		476	static aio_wd
		477	SvAIO_WD (SV *sv)
		478	{
		479	if (!SvROK (sv)
		480	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		481	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		482	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		483
		484	return (aio_wd)(long)SvIVX (SvRV (sv));
		485	}
		486
		487	static SV *
		488	newmortalFH (int fd, int flags)
		489	{
		490	if (fd < 0)
		491	return &PL_sv_undef;
		492
		493	GV *gv = (GV *)sv_newmortal ();
		494	char sym[64];
		495	int symlen;
		496
		497	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		498	gv_init (gv, aio_stash, sym, symlen, 0);
		499
		500	symlen = snprintf (
		501	sym,
		502	sizeof (sym),
		503	"%s&=%d",
		504	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		505	fd
		506	);
		507
		508	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		509	? (SV *)gv : &PL_sv_undef;
		510	}
		511
		512	static void
303	static void aio_grp_feed (aio_req grp)	513	aio_grp_feed (aio_req grp)
304	{	514	{
305	if (grp->sv2 && SvOK (grp->sv2))	515	if (grp->sv2 && SvOK (grp->sv2))
306	{	516	{
307	dSP;	517	dSP;
308		518
…		…
316	FREETMPS;	526	FREETMPS;
317	LEAVE;	527	LEAVE;
318	}	528	}
319	}	529	}
320		530
		531	static void
321	static void req_submit (eio_req *req)	532	req_submit (eio_req *req)
322	{	533	{
323	eio_submit (req);	534	eio_submit (req);
324		535
325	if (expect_false (on_next_submit))	536	if (expect_false (on_next_submit))
326	{	537	{
…		…
333	PUTBACK;	544	PUTBACK;
334	call_sv (cb, G_DISCARD | G_EVAL);	545	call_sv (cb, G_DISCARD | G_EVAL);
335	}	546	}
336	}	547	}
337		548
		549	static int
338	static int req_invoke (eio_req *req)	550	req_invoke (eio_req *req)
339	{	551	{
340	if (req->flags & FLAG_SV2_RO_OFF)	552	if (req->flags & FLAG_SV2_RO_OFF)
341	SvREADONLY_off (req->sv2);	553	SvREADONLY_off (req->sv2);
342		554
343	if (!EIO_CANCELLED (req) && req->callback)	555	if (!EIO_CANCELLED (req) && req->callback)
…		…
354	/* do not recreate the result IV from scratch each time */	566	/* do not recreate the result IV from scratch each time */
355	if (expect_true (sv_result_cache))	567	if (expect_true (sv_result_cache))
356	{	568	{
357	sv_result = sv_result_cache; sv_result_cache = 0;	569	sv_result = sv_result_cache; sv_result_cache = 0;
358	SvIV_set (sv_result, req->result);	570	SvIV_set (sv_result, req->result);
		571	SvIOK_only (sv_result);
359	}	572	}
360	else	573	else
361	{	574	{
362	sv_result = newSViv (req->result);	575	sv_result = newSViv (req->result);
363	SvREADONLY_on (sv_result);	576	SvREADONLY_on (sv_result);
364	}	577	}
365		578
366	switch (req->type)	579	switch (req->type)
367	{	580	{
		581	case EIO_WD_OPEN:
		582	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		583	break;
		584
368	case EIO_READDIR:	585	case EIO_READDIR:
369	{	586	{
370	SV *rv = &PL_sv_undef;	587	SV *rv = &PL_sv_undef;
371		588
372	if (req->result >= 0)	589	if (req->result >= 0)
…		…
425	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	642	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
426	}	643	}
427	break;	644	break;
428		645
429	case EIO_OPEN:	646	case EIO_OPEN:
430	{	647	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
431	/* convert fd to fh */
432	SV *fh = &PL_sv_undef;
433
434	if (req->result >= 0)
435	{
436	GV *gv = (GV *)sv_newmortal ();
437	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
438	char sym [64];
439	int symlen;
440
441	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
442	gv_init (gv, aio_stash, sym, symlen, 0);
443
444	symlen = snprintf (
445	sym,
446	sizeof (sym),
447	"%s&=%d",
448	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
449	(int)req->result
450	);
451
452	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
453	fh = (SV *)gv;
454	}
455
456	PUSHs (fh);
457	}
458	break;	648	break;
459		649
460	case EIO_STATVFS:	650	case EIO_STATVFS:
461	case EIO_FSTATVFS:	651	case EIO_FSTATVFS:
462	{	652	{
463	SV *rv = &PL_sv_undef;	653	SV *rv = &PL_sv_undef;
464		654
		655	#ifndef _WIN32
465	if (req->result >= 0)	656	if (req->result >= 0)
466	{	657	{
467	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	658	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
468	HV *hv = newHV ();	659	HV *hv = newHV ();
		660	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		661	* chooses to make it a struct.
		662	*/
		663	unsigned long fsid = 0;
		664	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
469		665
470	rv = sv_2mortal (newRV_noinc ((SV *)hv));	666	rv = sv_2mortal (newRV_noinc ((SV *)hv));
471		667
472	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	668	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
473	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	669	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
475	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	671	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
476	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	672	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
477	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	673	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
478	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	674	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
479	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	675	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
480	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	676	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
481	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	677	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
482	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	678	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
483	}	679	}
		680	#endif
484		681
485	PUSHs (rv);	682	PUSHs (rv);
486	}	683	}
487		684
488	break;	685	break;
…		…
504	case EIO_NOP:	701	case EIO_NOP:
505	case EIO_BUSY:	702	case EIO_BUSY:
506	break;	703	break;
507		704
508	case EIO_READLINK:	705	case EIO_READLINK:
		706	case EIO_REALPATH:
509	if (req->result > 0)	707	if (req->result > 0)
510	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	708	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
511	break;	709	break;
512		710
513	case EIO_STAT:	711	case EIO_STAT:
514	case EIO_LSTAT:	712	case EIO_LSTAT:
515	case EIO_FSTAT:	713	case EIO_FSTAT:
516	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	714	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		715
517	PL_laststatval = req->result;	716	if (!(PL_laststatval = req->result))
		717	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
518	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	718	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		719
519	PUSHs (sv_result);	720	PUSHs (sv_result);
		721	break;
		722
		723	case EIO_SEEK:
		724	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
520	break;	725	break;
521		726
522	case EIO_READ:	727	case EIO_READ:
523	{	728	{
524	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	729	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
527	SvSETMAGIC (req->sv2);	732	SvSETMAGIC (req->sv2);
528	PUSHs (sv_result);	733	PUSHs (sv_result);
529	}	734	}
530	break;	735	break;
531		736
		737	case EIO_SLURP:
		738	{
		739	if (req->result >= 0)
		740	{
		741	/* if length was originally not known, we steal the malloc'ed memory */
		742	if (req->flags & EIO_FLAG_PTR2_FREE)
		743	{
		744	req->flags &= ~EIO_FLAG_PTR2_FREE;
		745	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		746	}
		747	else
		748	{
		749	SvCUR_set (req->sv2, req->result);
		750	*SvEND (req->sv2) = 0;
		751	SvPOK_only (req->sv2);
		752	}
		753
		754	SvSETMAGIC (req->sv2);
		755	}
		756
		757	PUSHs (sv_result);
		758	}
		759	break;
		760
		761	case EIO_CUSTOM:
		762	if (req->feed == fiemap)
		763	{
		764	#if HAVE_FIEMAP
		765	if (!req->result)
		766	{
		767	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		768
		769	if (fiemap->fm_extent_count)
		770	{
		771	AV *av = newAV ();
		772	int i;
		773
		774	while (fiemap->fm_mapped_extents)
		775	{
		776	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		777	AV *ext_av = newAV ();
		778
		779	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		780	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		781	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		782	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		783
		784	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		785	}
		786
		787	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		788	}
		789	else
		790	{
		791	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		792	PUSHs (sv_result);
		793	}
		794	}
		795	#endif
		796	}
		797	else
		798	PUSHs (sv_result);
		799	break;
		800
532	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */	801	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
533	if (req->result > 0)	802	if (req->result > 0)
534	SvIV_set (sv_result, 0);	803	SvIV_set (sv_result, 0);
535	/* FALLTHROUGH */	804	/* FALLTHROUGH */
536		805
537	default:	806	default:
…		…
557	}	826	}
558		827
559	return !!SvTRUE (ERRSV);	828	return !!SvTRUE (ERRSV);
560	}	829	}
561		830
		831	static void
562	static void req_destroy (aio_req req)	832	req_destroy (aio_req req)
563	{	833	{
564	if (req->self)	834	if (req->self)
565	{	835	{
566	sv_unmagic (req->self, PERL_MAGIC_ext);	836	sv_unmagic (req->self, PERL_MAGIC_ext);
567	SvREFCNT_dec (req->self);	837	SvREFCNT_dec (req->self);
568	}	838	}
569		839
570	SvREFCNT_dec (req->sv1);	840	SvREFCNT_dec (req->sv1);
571	SvREFCNT_dec (req->sv2);	841	SvREFCNT_dec (req->sv2);
		842	SvREFCNT_dec (req->sv3);
		843	SvREFCNT_dec (req->sv4);
572	SvREFCNT_dec (req->callback);	844	SvREFCNT_dec (req->callback);
573		845
574	Safefree (req);	846	free (req);
575	}	847	}
576		848
		849	static void
577	static void req_cancel_subs (aio_req grp)	850	req_cancel_subs (aio_req grp)
578	{	851	{
579	aio_req sub;
580
581	if (grp->type != EIO_GROUP)	852	if (grp->type != EIO_GROUP)
582	return;	853	return;
583		854
584	SvREFCNT_dec (grp->sv2);	855	SvREFCNT_dec (grp->sv2);
585	grp->sv2 = 0;	856	grp->sv2 = 0;
586		857
587	eio_grp_cancel (grp);	858	eio_grp_cancel (grp);
588	}	859	}
589		860
590	static void	861	static void ecb_cold
591	create_respipe (void)	862	create_respipe (void)
592	{	863	{
593	if (s_epipe_renew (&respipe))	864	if (s_epipe_renew (&respipe))
594	croak ("IO::AIO: unable to initialize result pipe");	865	croak ("IO::AIO: unable to initialize result pipe");
595	}	866	}
596		867
597	static void poll_wait (void)	868	static void
		869	poll_wait (void)
598	{	870	{
599	while (eio_nreqs ())	871	while (eio_nreqs ())
600	{	872	{
601	int size;	873	int size;
602		874
603	X_LOCK (reslock);	875	X_LOCK (EIO_POOL->reslock);
604	size = res_queue.size;	876	size = EIO_POOL->res_queue.size;
605	X_UNLOCK (reslock);	877	X_UNLOCK (EIO_POOL->reslock);
606		878
607	if (size)	879	if (size)
608	return;	880	return;
609		881
610	etp_maybe_start_thread ();	882	etp_maybe_start_thread (EIO_POOL);
611		883
612	s_epipe_wait (&respipe);	884	s_epipe_wait (&respipe);
613	}	885	}
614	}	886	}
615		887
616	static int poll_cb (void)	888	static int
		889	poll_cb (void)
617	{	890	{
618	for (;;)	891	for (;;)
619	{	892	{
620	int res = eio_poll ();	893	int res = eio_poll ();
621		894
…		…
627		900
628	poll_wait ();	901	poll_wait ();
629	}	902	}
630	}	903	}
631		904
632	static void atfork_child (void)	905	static void ecb_cold
		906	reinit (void)
633	{	907	{
634	create_respipe ();	908	create_respipe ();
635	}
636		909
637	/*****************************************************************************/	910	if (eio_init (want_poll, done_poll) < 0)
638		911	croak ("IO::AIO: unable to initialise eio library");
639	#if !_POSIX_MAPPED_FILES
640	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
641	# define munmap(addr,length) (errno = ENOSYS, -1)
642	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
643	#endif
644
645	#define MMAP_MAGIC PERL_MAGIC_ext
646
647	static int
648	mmap_free (pTHX_ SV *sv, MAGIC *mg)
649	{
650	int old_errno = errno;
651	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
652	errno = old_errno;
653
654	mg->mg_obj = 0; /* just in case */
655
656	SvREADONLY_off (sv);
657
658	if (SvPVX (sv) != mg->mg_ptr)
659	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
660
661	SvCUR_set (sv, 0);
662	SvPVX (sv) = 0;
663	SvOK_off (sv);
664
665	return 0;
666	}	912	}
667
668	static MGVTBL mmap_vtbl = {
669	0, 0, 0, 0, mmap_free
670	};
671		913
672	/*****************************************************************************/	914	/*****************************************************************************/
673		915
674	static SV *	916	static SV *
675	get_cb (SV *cb_sv)	917	get_cb (SV *cb_sv)
676	{	918	{
677	SvGETMAGIC (cb_sv);	919	SvGETMAGIC (cb_sv);
678	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	920	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
679	}	921	}
680		922
		923	static aio_req ecb_noinline
		924	dreq (SV *callback)
		925	{
		926	SV *cb_cv;
		927	aio_req req;
		928	int req_pri = next_pri;
		929	next_pri = EIO_PRI_DEFAULT;
		930
		931	cb_cv = get_cb (callback);
		932
		933	req = calloc (sizeof (*req), 1);
		934	if (!req)
		935	croak ("out of memory during eio_req allocation");
		936
		937	req->callback = SvREFCNT_inc (cb_cv);
		938	req->pri = req_pri;
		939
		940	return req;
		941	}
		942
681	#define dREQ \	943	#define dREQ \
682	SV *cb_cv; \	944	aio_req req = dreq (callback); \
683	aio_req req; \
684	int req_pri = next_pri; \
685	next_pri = EIO_PRI_DEFAULT; \
686	\
687	cb_cv = get_cb (callback); \
688	\
689	Newz (0, req, 1, eio_req); \
690	if (!req) \
691	croak ("out of memory during eio_req allocation"); \
692	\
693	req->callback = SvREFCNT_inc (cb_cv); \
694	req->pri = req_pri
695		945
696	#define REQ_SEND \	946	#define REQ_SEND \
697	PUTBACK; \	947	PUTBACK; \
698	req_submit (req); \	948	req_submit (req); \
699	SPAGAIN; \	949	SPAGAIN; \
700	\	950	\
701	if (GIMME_V != G_VOID) \	951	if (GIMME_V != G_VOID) \
702	XPUSHs (req_sv (req, aio_req_stash));	952	XPUSHs (req_sv (req, aio_req_stash));
703		953
		954	ecb_inline void
		955	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		956	{
		957	if (expect_false (SvROK (path)))
		958	{
		959	SV *rv = SvRV (path);
		960	SV *wdob;
		961
		962	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		963	{
		964	path = AvARRAY (rv)[1];
		965	wdob = AvARRAY (rv)[0];
		966
		967	if (SvOK (wdob))
		968	{
		969	*wd = SvAIO_WD (wdob);
		970	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		971	}
		972	else
		973	*wd = EIO_INVALID_WD;
		974	}
		975	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		976	{
		977	*wd = (aio_wd)(long)SvIVX (rv);
		978	*wdsv = SvREFCNT_inc_NN (rv);
		979	*ptr = ".";
		980	return; /* path set to "." */
		981	}
		982	else
		983	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		984	}
		985
		986	*pathsv = newSVsv (path);
		987	*ptr = SvPVbyte_nolen (*pathsv);
		988	}
		989
		990	static void ecb_noinline
		991	req_set_path1 (aio_req req, SV *path)
		992	{
		993	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		994	}
		995
		996	static void ecb_noinline
		997	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		998	{
		999	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		1000
		1001	switch (SvTYPE (rv))
		1002	{
		1003	case SVt_PVIO:
		1004	case SVt_PVLV:
		1005	case SVt_PVGV:
		1006	req->type = type_fh;
		1007	req->sv1 = newSVsv (fh_or_path);
		1008	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1009	break;
		1010
		1011	default:
		1012	req->type = type_path;
		1013	req_set_path1 (req, fh_or_path);
		1014	break;
		1015	}
		1016	}
		1017
		1018	/*****************************************************************************/
		1019
		1020	static void
		1021	ts_set (struct timespec *ts, NV value)
		1022	{
		1023	ts->tv_sec = value;
		1024	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1025	}
		1026
		1027	static NV
		1028	ts_get (const struct timespec *ts)
		1029	{
		1030	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1031	}
		1032
		1033	/*****************************************************************************/
		1034
		1035	XS(boot_IO__AIO) ecb_cold;
		1036
704	MODULE = IO::AIO PACKAGE = IO::AIO	1037	MODULE = IO::AIO PACKAGE = IO::AIO
705		1038
706	PROTOTYPES: ENABLE	1039	PROTOTYPES: ENABLE
707		1040
708	BOOT:	1041	BOOT:
…		…
712	IV iv;	1045	IV iv;
713	} *civ, const_iv[] = {	1046	} *civ, const_iv[] = {
714	# define const_niv(name, value) { # name, (IV) value },	1047	# define const_niv(name, value) { # name, (IV) value },
715	# define const_iv(name) { # name, (IV) name },	1048	# define const_iv(name) { # name, (IV) name },
716	# define const_eio(name) { # name, (IV) EIO_ ## name },	1049	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1050
		1051	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1052	/* the first block can be undef if missing */
		1053	const_iv (ENOSYS)
717	const_iv (EXDEV)	1054	const_iv (EXDEV)
718	const_iv (ENOSYS)	1055	const_iv (EBADR)
		1056
		1057	/* for lseek */
		1058	const_iv (SEEK_DATA)
		1059	const_iv (SEEK_HOLE)
		1060
		1061	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1062	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1063	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1064	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1065	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1066	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1067
		1068	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1069	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1070	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1071	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1072	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1073
		1074	/* the second block will be 0 when missing */
		1075	const_iv (O_ACCMODE)
		1076
719	const_iv (O_RDONLY)	1077	const_iv (O_RDONLY)
720	const_iv (O_WRONLY)	1078	const_iv (O_WRONLY)
721	const_iv (O_RDWR)	1079	const_iv (O_RDWR)
722	const_iv (O_CREAT)	1080	const_iv (O_CREAT)
723	const_iv (O_TRUNC)	1081	const_iv (O_TRUNC)
724	const_iv (O_EXCL)	1082	const_iv (O_EXCL)
725	const_iv (O_APPEND)	1083	const_iv (O_APPEND)
726	#ifndef _WIN32	1084
		1085	const_iv (O_ASYNC)
		1086	const_iv (O_DIRECT)
		1087	const_iv (O_NOATIME)
		1088
		1089	const_iv (O_CLOEXEC)
		1090	const_iv (O_NOCTTY)
		1091	const_iv (O_NOFOLLOW)
		1092	const_iv (O_NONBLOCK)
		1093	const_iv (O_EXEC)
		1094	const_iv (O_SEARCH)
		1095	const_iv (O_DIRECTORY)
		1096	const_iv (O_DSYNC)
		1097	const_iv (O_RSYNC)
		1098	const_iv (O_SYNC)
		1099	const_iv (O_PATH)
		1100	const_iv (O_TMPFILE)
		1101	const_iv (O_TTY_INIT)
		1102
727	const_iv (S_IFIFO)	1103	const_iv (S_IFIFO)
728	#endif	1104	const_iv (S_IFCHR)
729	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	1105	const_iv (S_IFBLK)
730	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	1106	const_iv (S_IFLNK)
731	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	1107	const_iv (S_IFREG)
732	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	1108	const_iv (S_IFDIR)
733	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	1109	const_iv (S_IFWHT)
734	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	1110	const_iv (S_IFSOCK)
735		1111	const_iv (S_IFMT)
736	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
737	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
738	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
739	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
740	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
741		1112
742	const_iv (ST_RDONLY)	1113	const_iv (ST_RDONLY)
743	const_iv (ST_NOSUID)	1114	const_iv (ST_NOSUID)
744	const_iv (ST_NODEV)	1115	const_iv (ST_NODEV)
745	const_iv (ST_NOEXEC)	1116	const_iv (ST_NOEXEC)
…		…
755	const_iv (PROT_NONE)	1126	const_iv (PROT_NONE)
756	const_iv (PROT_EXEC)	1127	const_iv (PROT_EXEC)
757	const_iv (PROT_READ)	1128	const_iv (PROT_READ)
758	const_iv (PROT_WRITE)	1129	const_iv (PROT_WRITE)
759		1130
760	/*const_iv (MAP_FIXED)*/
761	const_iv (MAP_PRIVATE)	1131	const_iv (MAP_PRIVATE)
762	const_iv (MAP_SHARED)	1132	const_iv (MAP_SHARED)
		1133	const_iv (MAP_FIXED)
763	const_iv (MAP_ANONYMOUS)	1134	const_iv (MAP_ANONYMOUS)
764		1135
765	/* linuxish */	1136	/* linuxish */
766	const_iv (MAP_HUGETLB)
767	const_iv (MAP_LOCKED)	1137	const_iv (MAP_LOCKED)
768	const_iv (MAP_NORESERVE)	1138	const_iv (MAP_NORESERVE)
769	const_iv (MAP_POPULATE)	1139	const_iv (MAP_POPULATE)
770	const_iv (MAP_NONBLOCK)	1140	const_iv (MAP_NONBLOCK)
		1141	const_iv (MAP_GROWSDOWN)
		1142	const_iv (MAP_32BIT)
		1143	const_iv (MAP_HUGETLB)
		1144	const_iv (MAP_STACK)
		1145
		1146	const_iv (MREMAP_MAYMOVE)
		1147	const_iv (MREMAP_FIXED)
		1148
		1149	const_iv (F_DUPFD_CLOEXEC)
		1150
		1151	const_iv (MSG_CMSG_CLOEXEC)
		1152	const_iv (SOCK_CLOEXEC)
		1153
		1154	const_iv (F_OFD_GETLK)
		1155	const_iv (F_OFD_SETLK)
		1156	const_iv (F_OFD_GETLKW)
		1157
		1158	const_iv (FIFREEZE)
		1159	const_iv (FITHAW)
		1160	const_iv (FITRIM)
		1161	const_iv (FICLONE)
		1162	const_iv (FICLONERANGE)
		1163	const_iv (FIDEDUPERANGE)
		1164
		1165	const_iv (FS_IOC_GETFLAGS)
		1166	const_iv (FS_IOC_SETFLAGS)
		1167	const_iv (FS_IOC_GETVERSION)
		1168	const_iv (FS_IOC_SETVERSION)
		1169	const_iv (FS_IOC_FIEMAP)
		1170	const_iv (FS_IOC_FSGETXATTR)
		1171	const_iv (FS_IOC_FSSETXATTR)
		1172	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1173	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1174	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1175
		1176	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1177
		1178	const_iv (FS_SECRM_FL)
		1179	const_iv (FS_UNRM_FL)
		1180	const_iv (FS_COMPR_FL)
		1181	const_iv (FS_SYNC_FL)
		1182	const_iv (FS_IMMUTABLE_FL)
		1183	const_iv (FS_APPEND_FL)
		1184	const_iv (FS_NODUMP_FL)
		1185	const_iv (FS_NOATIME_FL)
		1186	const_iv (FS_DIRTY_FL)
		1187	const_iv (FS_COMPRBLK_FL)
		1188	const_iv (FS_NOCOMP_FL)
		1189	const_iv (FS_ENCRYPT_FL)
		1190	const_iv (FS_BTREE_FL)
		1191	const_iv (FS_INDEX_FL)
		1192	const_iv (FS_JOURNAL_DATA_FL)
		1193	const_iv (FS_NOTAIL_FL)
		1194	const_iv (FS_DIRSYNC_FL)
		1195	const_iv (FS_TOPDIR_FL)
		1196	const_iv (FS_FL_USER_MODIFIABLE)
		1197
		1198	const_iv (FS_XFLAG_REALTIME)
		1199	const_iv (FS_XFLAG_PREALLOC)
		1200	const_iv (FS_XFLAG_IMMUTABLE)
		1201	const_iv (FS_XFLAG_APPEND)
		1202	const_iv (FS_XFLAG_SYNC)
		1203	const_iv (FS_XFLAG_NOATIME)
		1204	const_iv (FS_XFLAG_NODUMP)
		1205	const_iv (FS_XFLAG_RTINHERIT)
		1206	const_iv (FS_XFLAG_PROJINHERIT)
		1207	const_iv (FS_XFLAG_NOSYMLINKS)
		1208	const_iv (FS_XFLAG_EXTSIZE)
		1209	const_iv (FS_XFLAG_EXTSZINHERIT)
		1210	const_iv (FS_XFLAG_NODEFRAG)
		1211	const_iv (FS_XFLAG_FILESTREAM)
		1212	const_iv (FS_XFLAG_DAX)
		1213	const_iv (FS_XFLAG_HASATTR)
		1214
		1215	const_iv (FIEMAP_FLAG_SYNC)
		1216	const_iv (FIEMAP_FLAG_XATTR)
		1217	const_iv (FIEMAP_FLAGS_COMPAT)
		1218	const_iv (FIEMAP_EXTENT_LAST)
		1219	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1220	const_iv (FIEMAP_EXTENT_DELALLOC)
		1221	const_iv (FIEMAP_EXTENT_ENCODED)
		1222	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1223	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1224	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1225	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1226	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1227	const_iv (FIEMAP_EXTENT_MERGED)
		1228	const_iv (FIEMAP_EXTENT_SHARED)
		1229
		1230	const_iv (SPLICE_F_MOVE)
		1231	const_iv (SPLICE_F_NONBLOCK)
		1232	const_iv (SPLICE_F_MORE)
		1233	const_iv (SPLICE_F_GIFT)
		1234
		1235	const_iv (EFD_CLOEXEC)
		1236	const_iv (EFD_NONBLOCK)
		1237	const_iv (EFD_SEMAPHORE)
		1238
		1239	const_iv (CLOCK_REALTIME)
		1240	const_iv (CLOCK_MONOTONIC)
		1241	const_iv (CLOCK_BOOTTIME)
		1242	const_iv (CLOCK_REALTIME_ALARM)
		1243	const_iv (CLOCK_BOOTTIME_ALARM)
		1244
		1245	const_iv (TFD_NONBLOCK)
		1246	const_iv (TFD_CLOEXEC)
		1247
		1248	const_iv (TFD_TIMER_ABSTIME)
		1249	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1250
		1251	/* these are libeio constants, and are independent of gendef0 */
		1252	const_eio (SEEK_SET)
		1253	const_eio (SEEK_CUR)
		1254	const_eio (SEEK_END)
771		1255
772	const_eio (MCL_FUTURE)	1256	const_eio (MCL_FUTURE)
773	const_eio (MCL_CURRENT)	1257	const_eio (MCL_CURRENT)
774		1258
775	const_eio (MS_ASYNC)	1259	const_eio (MS_ASYNC)
…		…
779	const_eio (MT_MODIFY)	1263	const_eio (MT_MODIFY)
780		1264
781	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1265	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
782	const_eio (SYNC_FILE_RANGE_WRITE)	1266	const_eio (SYNC_FILE_RANGE_WRITE)
783	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1267	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1268
		1269	const_eio (FALLOC_FL_KEEP_SIZE)
		1270	const_eio (FALLOC_FL_PUNCH_HOLE)
		1271	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1272	const_eio (FALLOC_FL_ZERO_RANGE)
		1273	const_eio (FALLOC_FL_INSERT_RANGE)
		1274	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1275
		1276	const_eio (RENAME_NOREPLACE)
		1277	const_eio (RENAME_EXCHANGE)
		1278	const_eio (RENAME_WHITEOUT)
784		1279
785	const_eio (READDIR_DENTS)	1280	const_eio (READDIR_DENTS)
786	const_eio (READDIR_DIRS_FIRST)	1281	const_eio (READDIR_DIRS_FIRST)
787	const_eio (READDIR_STAT_ORDER)	1282	const_eio (READDIR_STAT_ORDER)
788	const_eio (READDIR_FOUND_UNKNOWN)	1283	const_eio (READDIR_FOUND_UNKNOWN)
…		…
799	};	1294	};
800		1295
801	aio_stash = gv_stashpv ("IO::AIO" , 1);	1296	aio_stash = gv_stashpv ("IO::AIO" , 1);
802	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1297	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
803	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1298	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1299	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
804		1300
805	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1301	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
806	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1302	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
807		1303
808	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1304	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
809		1305
810	create_respipe ();	1306	reinit ();
811
812	if (eio_init (want_poll, done_poll) < 0)
813	croak ("IO::AIO: unable to initialise eio library");
814
815	/* atfork child called in fifo order, so before eio's handler */
816	X_THREAD_ATFORK (0, 0, atfork_child);
817	}	1307	}
818		1308
819	void	1309	void
		1310	reinit ()
		1311	PROTOTYPE:
		1312
		1313	void
820	max_poll_reqs (int nreqs)	1314	max_poll_reqs (unsigned int nreqs)
821	PROTOTYPE: $	1315	PROTOTYPE: $
822	CODE:	1316	CODE:
823	eio_set_max_poll_reqs (nreqs);	1317	eio_set_max_poll_reqs (nreqs);
824		1318
825	void	1319	void
…		…
827	PROTOTYPE: $	1321	PROTOTYPE: $
828	CODE:	1322	CODE:
829	eio_set_max_poll_time (nseconds);	1323	eio_set_max_poll_time (nseconds);
830		1324
831	void	1325	void
832	min_parallel (int nthreads)	1326	min_parallel (unsigned int nthreads)
833	PROTOTYPE: $	1327	PROTOTYPE: $
834	CODE:	1328	CODE:
835	eio_set_min_parallel (nthreads);	1329	eio_set_min_parallel (nthreads);
836		1330
837	void	1331	void
838	max_parallel (int nthreads)	1332	max_parallel (unsigned int nthreads)
839	PROTOTYPE: $	1333	PROTOTYPE: $
840	CODE:	1334	CODE:
841	eio_set_max_parallel (nthreads);	1335	eio_set_max_parallel (nthreads);
842		1336
843	void	1337	void
844	max_idle (int nthreads)	1338	max_idle (unsigned int nthreads)
845	PROTOTYPE: $	1339	PROTOTYPE: $
846	CODE:	1340	CODE:
847	eio_set_max_idle (nthreads);	1341	eio_set_max_idle (nthreads);
848		1342
849	void	1343	void
		1344	idle_timeout (unsigned int seconds)
		1345	PROTOTYPE: $
		1346	CODE:
		1347	eio_set_idle_timeout (seconds);
		1348
		1349	void
850	max_outstanding (int maxreqs)	1350	max_outstanding (unsigned int maxreqs)
851	PROTOTYPE: $	1351	PROTOTYPE: $
852	CODE:	1352	CODE:
853	max_outstanding = maxreqs;	1353	max_outstanding = maxreqs;
854		1354
855	void	1355	void
856	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1356	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
857	PPCODE:	1357	PPCODE:
858	{	1358	{
859	dREQ;	1359	dREQ;
860		1360
		1361	req->type = EIO_WD_OPEN;
		1362	req_set_path1 (req, pathname);
		1363
		1364	REQ_SEND;
		1365	}
		1366
		1367	void
		1368	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1369	PPCODE:
		1370	{
		1371	dREQ;
		1372
861	req->type = EIO_OPEN;	1373	req->type = EIO_OPEN;
862	req->sv1 = newSVsv (pathname);	1374	req_set_path1 (req, pathname);
863	req->ptr1 = SvPVbyte_nolen (req->sv1);
864	req->int1 = flags;	1375	req->int1 = flags;
865	req->int2 = mode;	1376	req->int2 = mode;
866		1377
867	REQ_SEND;	1378	REQ_SEND;
868	}	1379	}
869		1380
870	void	1381	void
871	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1382	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
872	ALIAS:	1383	ALIAS:
873	aio_fsync = EIO_FSYNC	1384	aio_fsync = EIO_FSYNC
874	aio_fdatasync = EIO_FDATASYNC	1385	aio_fdatasync = EIO_FDATASYNC
		1386	aio_syncfs = EIO_SYNCFS
875	PPCODE:	1387	PPCODE:
876	{	1388	{
877	int fd = s_fileno_croak (fh, 0);	1389	int fd = s_fileno_croak (fh, 0);
878	dREQ;	1390	dREQ;
879		1391
880	req->type = ix;	1392	req->type = ix;
881	req->sv1 = newSVsv (fh);	1393	req->sv1 = newSVsv (fh);
882	req->int1 = fd;	1394	req->int1 = fd;
883		1395
884	REQ_SEND (req);	1396	REQ_SEND;
885	}	1397	}
886		1398
887	void	1399	void
888	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1400	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
889	PPCODE:	1401	PPCODE:
890	{	1402	{
891	int fd = s_fileno_croak (fh, 0);	1403	int fd = s_fileno_croak (fh, 0);
892	dREQ;	1404	dREQ;
893		1405
894	req->type = EIO_SYNC_FILE_RANGE;	1406	req->type = EIO_SYNC_FILE_RANGE;
895	req->sv1 = newSVsv (fh);	1407	req->sv1 = newSVsv (fh);
896	req->int1 = fd;	1408	req->int1 = fd;
897	req->offs = offset;	1409	req->offs = offset;
898	req->size = nbytes;	1410	req->size = nbytes;
899	req->int2 = flags;	1411	req->int2 = flags;
900		1412
901	REQ_SEND (req);	1413	REQ_SEND;
902	}	1414	}
903		1415
904	void	1416	void
905	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1417	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
906	PPCODE:	1418	PPCODE:
907	{	1419	{
908	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
909	int fd = s_fileno_croak (fh, 0);	1420	int fd = s_fileno_croak (fh, 0);
910	dREQ;	1421	dREQ;
911		1422
912	if (close_pipe < 0)	1423	req->type = EIO_FALLOCATE;
		1424	req->sv1 = newSVsv (fh);
		1425	req->int1 = fd;
		1426	req->int2 = mode;
		1427	req->offs = offset;
		1428	req->size = len;
		1429
		1430	REQ_SEND;
		1431	}
		1432
		1433	void
		1434	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1435	PPCODE:
		1436	{
		1437	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1438	int fd = s_fileno_croak (fh, 0);
		1439	dREQ;
		1440
		1441	if (expect_false (close_fd < 0))
913	{	1442	{
914	int pipefd [2];	1443	int pipefd [2];
915		1444
		1445	if (
		1446	#ifdef _WIN32
		1447	_pipe (pipefd, 1, _O_BINARY) < 0
		1448	#else
916	if (pipe (pipefd) < 0	1449	pipe (pipefd) < 0
917	|| close (pipefd [1]) < 0
918	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1450	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1451	#endif
		1452	|| close (pipefd [1]) < 0
		1453	)
919	abort (); /*D*/	1454	abort (); /*D*/
920		1455
921	close_pipe = pipefd [0];	1456	close_fd = pipefd [0];
922	}	1457	}
923		1458
924	req->type = EIO_DUP2;	1459	req->type = EIO_DUP2;
925	req->int1 = close_pipe;	1460	req->int1 = close_fd;
926	req->sv2 = newSVsv (fh);	1461	req->sv2 = newSVsv (fh);
927	req->int2 = fd;	1462	req->int2 = fd;
928		1463
929	REQ_SEND (req);	1464	REQ_SEND;
930	}	1465	}
931		1466
932	void	1467	void
		1468	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1469	PPCODE:
		1470	{
		1471	int fd = s_fileno_croak (fh, 0);
		1472	dREQ;
		1473
		1474	req->type = EIO_SEEK;
		1475	req->sv1 = newSVsv (fh);
		1476	req->int1 = fd;
		1477	req->offs = SvVAL64 (offset);
		1478	req->int2 = whence;
		1479
		1480	REQ_SEND;
		1481	}
		1482
		1483	void
933	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1484	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
934	ALIAS:	1485	ALIAS:
935	aio_read = EIO_READ	1486	aio_read = EIO_READ
936	aio_write = EIO_WRITE	1487	aio_write = EIO_WRITE
937	PPCODE:	1488	PPCODE:
938	{	1489	{
…		…
954	len = svlen - dataoffset;	1505	len = svlen - dataoffset;
955	}	1506	}
956	else	1507	else
957	{	1508	{
958	/* read: check type and grow scalar as necessary */	1509	/* read: check type and grow scalar as necessary */
959	SvUPGRADE (data, SVt_PV);	1510	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
960	svptr = SvGROW (data, len + dataoffset + 1);	1511	svptr = sv_grow (data, len + dataoffset + 1);
		1512	else if (SvCUR (data) < len + dataoffset)
		1513	croak ("length + dataoffset outside of scalar, and cannot grow");
961	}	1514	}
962		1515
963	{	1516	{
964	dREQ;	1517	dREQ;
965		1518
…		…
981	REQ_SEND;	1534	REQ_SEND;
982	}	1535	}
983	}	1536	}
984		1537
985	void	1538	void
986	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1539	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1540	ALIAS:
		1541	aio_ioctl = EIO_IOCTL
		1542	aio_fcntl = EIO_FCNTL
987	PPCODE:	1543	PPCODE:
988	{	1544	{
989	SV *data;	1545	int fd = s_fileno_croak (fh, 0);
		1546	char *svptr;
		1547
		1548	if (SvPOK (arg) || !SvNIOK (arg))
		1549	{
		1550	STRLEN svlen;
		1551	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1552	#ifdef IOCPARM_LEN
		1553	STRLEN need = IOCPARM_LEN (request);
		1554	#else
		1555	STRLEN need = 256;
		1556	#endif
		1557
		1558	if (svlen < need)
		1559	svptr = SvGROW (arg, need);
		1560	}
		1561	else
		1562	svptr = (char *)SvIV (arg);
		1563
		1564	{
		1565	dREQ;
		1566
		1567	req->type = ix;
		1568	req->sv1 = newSVsv (fh);
		1569	req->int1 = fd;
		1570	req->int2 = (long)request;
		1571	req->sv2 = SvREFCNT_inc (arg);
		1572	req->ptr2 = svptr;
		1573
		1574	REQ_SEND;
		1575	}
		1576	}
		1577
		1578	void
		1579	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1580	ALIAS:
		1581	aio_readlink = EIO_READLINK
		1582	aio_realpath = EIO_REALPATH
		1583	PPCODE:
		1584	{
990	dREQ;	1585	dREQ;
991		1586
992	req->type = EIO_READLINK;	1587	req->type = ix;
993	req->sv1 = newSVsv (path);	1588	req_set_path1 (req, pathname);
994	req->ptr1 = SvPVbyte_nolen (req->sv1);
995		1589
996	REQ_SEND;	1590	REQ_SEND;
997	}	1591	}
998		1592
999	void	1593	void
1000	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1594	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1001	PPCODE:	1595	PPCODE:
1002	{	1596	{
1003	int ifd = s_fileno_croak (in_fh , 0);	1597	int ifd = s_fileno_croak (in_fh , 0);
1004	int ofd = s_fileno_croak (out_fh, 1);	1598	int ofd = s_fileno_croak (out_fh, 1);
1005	dREQ;	1599	dREQ;
1006		1600
1007	req->type = EIO_SENDFILE;	1601	req->type = EIO_SENDFILE;
1008	req->sv1 = newSVsv (out_fh);	1602	req->sv1 = newSVsv (out_fh);
1009	req->int1 = ofd;	1603	req->int1 = ofd;
…		…
1014		1608
1015	REQ_SEND;	1609	REQ_SEND;
1016	}	1610	}
1017		1611
1018	void	1612	void
1019	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1613	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1020	PPCODE:	1614	PPCODE:
1021	{	1615	{
1022	int fd = s_fileno_croak (fh, 0);	1616	int fd = s_fileno_croak (fh, 0);
1023	dREQ;	1617	dREQ;
1024		1618
1025	req->type = EIO_READAHEAD;	1619	req->type = EIO_READAHEAD;
1026	req->sv1 = newSVsv (fh);	1620	req->sv1 = newSVsv (fh);
1027	req->int1 = fd;	1621	req->int1 = fd;
…		…
1030		1624
1031	REQ_SEND;	1625	REQ_SEND;
1032	}	1626	}
1033		1627
1034	void	1628	void
1035	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1629	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1036	ALIAS:	1630	ALIAS:
1037	aio_stat = EIO_STAT	1631	aio_stat = EIO_STAT
1038	aio_lstat = EIO_LSTAT	1632	aio_lstat = EIO_LSTAT
1039	aio_statvfs = EIO_STATVFS	1633	aio_statvfs = EIO_STATVFS
1040	PPCODE:	1634	PPCODE:
1041	{	1635	{
1042	dREQ;	1636	dREQ;
1043		1637
1044	req->sv1 = newSVsv (fh_or_path);	1638	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1045
1046	if (SvPOK (req->sv1))
1047	{
1048	req->type = ix;
1049	req->ptr1 = SvPVbyte_nolen (req->sv1);
1050	}
1051	else
1052	{
1053	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1054	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1055	}
1056		1639
1057	REQ_SEND;	1640	REQ_SEND;
1058	}	1641	}
1059		1642
1060	void	1643	void
		1644	st_xtime ()
		1645	ALIAS:
		1646	st_atime = 1
		1647	st_mtime = 2
		1648	st_ctime = 4
		1649	st_xtime = 7
		1650	PPCODE:
		1651	EXTEND (SP, 3);
		1652	if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1653	if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1654	if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1655
		1656	void
		1657	st_xtimensec ()
		1658	ALIAS:
		1659	st_atimensec = 1
		1660	st_mtimensec = 2
		1661	st_ctimensec = 4
		1662	st_xtimensec = 7
		1663	PPCODE:
		1664	EXTEND (SP, 3);
		1665	if (ix & 1) PUSHs (newSViv (ATIMENSEC));
		1666	if (ix & 2) PUSHs (newSViv (MTIMENSEC));
		1667	if (ix & 4) PUSHs (newSViv (CTIMENSEC));
		1668
		1669	UV
		1670	major (UV dev)
		1671	ALIAS:
		1672	minor = 1
		1673	CODE:
		1674	RETVAL = ix ? minor (dev) : major (dev);
		1675	OUTPUT:
		1676	RETVAL
		1677
		1678	UV
		1679	makedev (UV maj, UV min)
		1680	CODE:
		1681	RETVAL = makedev (maj, min);
		1682	OUTPUT:
		1683	RETVAL
		1684
		1685	void
1061	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1686	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1062	PPCODE:	1687	PPCODE:
1063	{	1688	{
1064	dREQ;	1689	dREQ;
1065		1690
1066	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1691	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1067	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1692	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1068	req->sv1 = newSVsv (fh_or_path);	1693	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1069
1070	if (SvPOK (req->sv1))
1071	{
1072	req->type = EIO_UTIME;
1073	req->ptr1 = SvPVbyte_nolen (req->sv1);
1074	}
1075	else
1076	{
1077	req->type = EIO_FUTIME;
1078	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1079	}
1080		1694
1081	REQ_SEND;	1695	REQ_SEND;
1082	}	1696	}
1083		1697
1084	void	1698	void
1085	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1699	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1086	PPCODE:	1700	PPCODE:
1087	{	1701	{
1088	dREQ;	1702	dREQ;
1089		1703
1090	req->sv1 = newSVsv (fh_or_path);
1091	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1704	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1092		1705	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1093	if (SvPOK (req->sv1))
1094	{
1095	req->type = EIO_TRUNCATE;
1096	req->ptr1 = SvPVbyte_nolen (req->sv1);
1097	}
1098	else
1099	{
1100	req->type = EIO_FTRUNCATE;
1101	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1102	}
1103		1706
1104	REQ_SEND;	1707	REQ_SEND;
1105	}	1708	}
1106		1709
1107	void	1710	void
1108	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1711	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1109	ALIAS:
1110	aio_chmod = EIO_CHMOD
1111	aio_mkdir = EIO_MKDIR
1112	PPCODE:	1712	PPCODE:
1113	{	1713	{
1114	dREQ;	1714	dREQ;
1115		1715
1116	req->int2 = mode;	1716	req->int2 = mode;
1117	req->sv1 = newSVsv (fh_or_path);	1717	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1118
1119	if (SvPOK (req->sv1))
1120	{
1121	req->type = ix;
1122	req->ptr1 = SvPVbyte_nolen (req->sv1);
1123	}
1124	else
1125	{
1126	req->type = EIO_FCHMOD;
1127	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1128	}
1129		1718
1130	REQ_SEND;	1719	REQ_SEND;
1131	}	1720	}
1132		1721
1133	void	1722	void
1134	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1723	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1135	PPCODE:	1724	PPCODE:
1136	{	1725	{
1137	dREQ;	1726	dREQ;
1138		1727
1139	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1728	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1140	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1729	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1141	req->sv1 = newSVsv (fh_or_path);	1730	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1142
1143	if (SvPOK (req->sv1))
1144	{
1145	req->type = EIO_CHOWN;
1146	req->ptr1 = SvPVbyte_nolen (req->sv1);
1147	}
1148	else
1149	{
1150	req->type = EIO_FCHOWN;
1151	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1152	}
1153		1731
1154	REQ_SEND;	1732	REQ_SEND;
1155	}	1733	}
1156		1734
1157	void	1735	void
1158	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1736	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1159	PPCODE:	1737	PPCODE:
1160	{	1738	{
1161	dREQ;	1739	dREQ;
1162		1740
1163	req->type = EIO_READDIR;	1741	req->type = EIO_READDIR;
1164	req->sv1 = newSVsv (pathname);
1165	req->ptr1 = SvPVbyte_nolen (req->sv1);
1166	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1742	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1167		1743
1168	if (flags & EIO_READDIR_DENTS)	1744	if (flags & EIO_READDIR_DENTS)
1169	req->int1 |= EIO_READDIR_CUSTOM2;	1745	req->int1 |= EIO_READDIR_CUSTOM2;
1170		1746
		1747	req_set_path1 (req, pathname);
		1748
1171	REQ_SEND;	1749	REQ_SEND;
1172	}	1750	}
1173		1751
1174	void	1752	void
		1753	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1754	PPCODE:
		1755	{
		1756	dREQ;
		1757
		1758	req->type = EIO_MKDIR;
		1759	req->int2 = mode;
		1760	req_set_path1 (req, pathname);
		1761
		1762	REQ_SEND;
		1763	}
		1764
		1765	void
1175	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1766	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1176	ALIAS:	1767	ALIAS:
1177	aio_unlink = EIO_UNLINK	1768	aio_unlink = EIO_UNLINK
1178	aio_rmdir = EIO_RMDIR	1769	aio_rmdir = EIO_RMDIR
1179	aio_readdir = EIO_READDIR	1770	aio_readdir = EIO_READDIR
1180	PPCODE:	1771	PPCODE:
1181	{	1772	{
1182	dREQ;	1773	dREQ;
1183		1774
1184	req->type = ix;	1775	req->type = ix;
1185	req->sv1 = newSVsv (pathname);	1776	req_set_path1 (req, pathname);
1186	req->ptr1 = SvPVbyte_nolen (req->sv1);
1187		1777
1188	REQ_SEND;	1778	REQ_SEND;
1189	}	1779	}
1190		1780
1191	void	1781	void
1192	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1782	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1193	ALIAS:	1783	ALIAS:
1194	aio_link = EIO_LINK	1784	aio_link = EIO_LINK
1195	aio_symlink = EIO_SYMLINK	1785	aio_symlink = EIO_SYMLINK
1196	aio_rename = EIO_RENAME	1786	aio_rename = EIO_RENAME
1197	PPCODE:	1787	PPCODE:
1198	{	1788	{
		1789	eio_wd wd2 = 0;
1199	dREQ;	1790	dREQ;
1200		1791
1201	req->type = ix;	1792	req->type = ix;
1202	req->sv1 = newSVsv (oldpath);	1793	req_set_path1 (req, oldpath);
1203	req->ptr1 = SvPVbyte_nolen (req->sv1);	1794	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1204	req->sv2 = newSVsv (newpath);	1795	req->int3 = (long)wd2;
1205	req->ptr2 = SvPVbyte_nolen (req->sv2);
1206		1796
1207	REQ_SEND;	1797	REQ_SEND;
1208	}	1798	}
1209		1799
1210	void	1800	void
		1801	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1802	PPCODE:
		1803	{
		1804	eio_wd wd2 = 0;
		1805	dREQ;
		1806
		1807	req->type = EIO_RENAME;
		1808	req_set_path1 (req, oldpath);
		1809	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1810	req->int2 = flags;
		1811	req->int3 = (long)wd2;
		1812
		1813	REQ_SEND;
		1814	}
		1815
		1816	void
1211	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1817	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1212	PPCODE:	1818	PPCODE:
1213	{	1819	{
1214	dREQ;	1820	dREQ;
1215		1821
1216	req->type = EIO_MKNOD;	1822	req->type = EIO_MKNOD;
1217	req->sv1 = newSVsv (pathname);
1218	req->ptr1 = SvPVbyte_nolen (req->sv1);
1219	req->int2 = (mode_t)mode;	1823	req->int2 = (mode_t)mode;
1220	req->offs = dev;	1824	req->offs = dev;
		1825	req_set_path1 (req, pathname);
1221		1826
1222	REQ_SEND;	1827	REQ_SEND;
1223	}	1828	}
1224		1829
1225	void	1830	void
1226	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1831	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1227	ALIAS:	1832	ALIAS:
1228	aio_mtouch = EIO_MTOUCH	1833	aio_mtouch = EIO_MTOUCH
1229	aio_msync = EIO_MSYNC	1834	aio_msync = EIO_MSYNC
1230	PPCODE:	1835	PPCODE:
1231	{	1836	{
1232	STRLEN svlen;	1837	STRLEN svlen;
1233	char *svptr = SvPVbyte (data, svlen);	1838	char *svptr = SvPVbyte (data, svlen);
1234	UV len = SvUV (length);	1839	UV len = SvUV (length);
		1840
		1841	if (flags < 0)
		1842	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1235		1843
1236	if (offset < 0)	1844	if (offset < 0)
1237	offset += svlen;	1845	offset += svlen;
1238		1846
1239	if (offset < 0 || offset > svlen)	1847	if (offset < 0 || offset > svlen)
…		…
1254	REQ_SEND;	1862	REQ_SEND;
1255	}	1863	}
1256	}	1864	}
1257		1865
1258	void	1866	void
1259	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1867	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1260	PPCODE:	1868	PPCODE:
1261	{	1869	{
1262	STRLEN svlen;	1870	STRLEN svlen;
1263	char *svptr = SvPVbyte (data, svlen);	1871	char *svptr = SvPVbyte (data, svlen);
1264	UV len = SvUV (length);	1872	UV len = SvUV (length);
…		…
1283	REQ_SEND;	1891	REQ_SEND;
1284	}	1892	}
1285	}	1893	}
1286		1894
1287	void	1895	void
1288	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1896	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1289	PPCODE:	1897	PPCODE:
1290	{	1898	{
1291	dREQ;	1899	dREQ;
1292		1900
1293	req->type = EIO_MLOCKALL;	1901	req->type = EIO_MLOCKALL;
…		…
1295		1903
1296	REQ_SEND;	1904	REQ_SEND;
1297	}	1905	}
1298		1906
1299	void	1907	void
		1908	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1909	PPCODE:
		1910	{
		1911	int fd = s_fileno_croak (fh, 0);
		1912	dREQ;
		1913
		1914	req->type = EIO_CUSTOM;
		1915	req->sv1 = newSVsv (fh);
		1916	req->int1 = fd;
		1917
		1918	req->feed = fiemap;
		1919	#if HAVE_FIEMAP
		1920	/* keep our fingers crossed that the next two types are 64 bit */
		1921	req->offs = start;
		1922	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1923	req->int2 = flags;
		1924	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1925	#endif
		1926
		1927	REQ_SEND;
		1928	}
		1929
		1930	void
		1931	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1932	PPCODE:
		1933	{
		1934	char *svptr = 0;
		1935
		1936	sv_clear_foreign (data);
		1937
		1938	if (length) /* known length, directly read into scalar */
		1939	{
		1940	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1941	svptr = sv_grow (data, length + 1);
		1942	else if (SvCUR (data) < length)
		1943	croak ("length outside of scalar, and cannot grow");
		1944	else
		1945	svptr = SvPVbyte_nolen (data);
		1946	}
		1947
		1948	{
		1949	dREQ;
		1950
		1951	req->type = EIO_SLURP;
		1952	req_set_path1 (req, pathname);
		1953	req->offs = offset;
		1954	req->size = length;
		1955	req->sv2 = SvREFCNT_inc (data);
		1956	req->ptr2 = svptr;
		1957
		1958	if (!SvREADONLY (data))
		1959	{
		1960	SvREADONLY_on (data);
		1961	req->flags |= FLAG_SV2_RO_OFF;
		1962	}
		1963
		1964	REQ_SEND;
		1965	}
		1966	}
		1967
		1968	void
1300	aio_busy (double delay, SV *callback=&PL_sv_undef)	1969	aio_busy (double delay, SV *callback = &PL_sv_undef)
1301	PPCODE:	1970	PPCODE:
1302	{	1971	{
1303	dREQ;	1972	dREQ;
1304		1973
1305	req->type = EIO_BUSY;	1974	req->type = EIO_BUSY;
…		…
1307		1976
1308	REQ_SEND;	1977	REQ_SEND;
1309	}	1978	}
1310		1979
1311	void	1980	void
1312	aio_group (SV *callback=&PL_sv_undef)	1981	aio_group (SV *callback = &PL_sv_undef)
1313	PPCODE:	1982	PPCODE:
1314	{	1983	{
1315	dREQ;	1984	dREQ;
1316		1985
1317	req->type = EIO_GROUP;	1986	req->type = EIO_GROUP;
1318		1987
		1988	PUTBACK;
1319	req_submit (req);	1989	req_submit (req);
		1990	SPAGAIN;
		1991
1320	XPUSHs (req_sv (req, aio_grp_stash));	1992	XPUSHs (req_sv (req, aio_grp_stash));
1321	}	1993	}
1322		1994
1323	void	1995	void
1324	aio_nop (SV *callback=&PL_sv_undef)	1996	aio_nop (SV *callback = &PL_sv_undef)
1325	ALIAS:	1997	ALIAS:
1326	aio_nop = EIO_NOP	1998	aio_nop = EIO_NOP
1327	aio_sync = EIO_SYNC	1999	aio_sync = EIO_SYNC
1328	PPCODE:	2000	PPCODE:
1329	{	2001	{
…		…
1333		2005
1334	REQ_SEND;	2006	REQ_SEND;
1335	}	2007	}
1336		2008
1337	int	2009	int
1338	aioreq_pri (int pri = 0)	2010	aioreq_pri (int pri = NO_INIT)
1339	CODE:	2011	CODE:
1340	RETVAL = next_pri;	2012	RETVAL = next_pri;
1341	if (items > 0)	2013	if (items > 0)
1342	{	2014	{
1343	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2015	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1425	CODE:	2097	CODE:
1426	RETVAL = posix_fadvise (fh, offset, length, advice);	2098	RETVAL = posix_fadvise (fh, offset, length, advice);
1427	OUTPUT:	2099	OUTPUT:
1428	RETVAL	2100	RETVAL
1429		2101
1430	ssize_t	2102	IV
1431	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	2103	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1432	CODE:	2104	CODE:
1433	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2105	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1434	OUTPUT:	2106	OUTPUT:
1435	RETVAL	2107	RETVAL
1436		2108
1437	void	2109	void
1438	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2110	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1439	PPCODE:	2111	PPCODE:
1440	sv_unmagic (scalar, MMAP_MAGIC);	2112	sv_clear_foreign (scalar);
1441	{	2113	{
1442	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2114	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1443	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2115	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1444	if (addr == (void *)-1)	2116	if (addr == (void *)-1)
1445	XSRETURN_NO;	2117	XSRETURN_NO;
1446		2118
1447	sv_force_normal (scalar);	2119	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1448
1449	/* we store the length in mg_obj, as namlen is I32 :/ */
1450	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1451	->mg_obj = (SV *)length;
1452
1453	SvUPGRADE (scalar, SVt_PV); /* nop... */
1454		2120
1455	if (!(prot & PROT_WRITE))	2121	if (!(prot & PROT_WRITE))
1456	SvREADONLY_on (scalar);	2122	SvREADONLY_on (scalar);
1457		2123
1458	if (SvLEN (scalar))
1459	Safefree (SvPVX (scalar));
1460
1461	SvPVX (scalar) = (char *)addr;
1462	SvCUR_set (scalar, length);
1463	SvLEN_set (scalar, 0);
1464	SvPOK_only (scalar);
1465
1466	XSRETURN_YES;	2124	XSRETURN_YES;
1467	}	2125	}
1468		2126
1469	void	2127	void
1470	munmap (SV *scalar)	2128	munmap (SV *scalar)
1471	CODE:	2129	CODE:
1472	sv_unmagic (scalar, MMAP_MAGIC);	2130	sv_clear_foreign (scalar);
		2131
		2132	SV *
		2133	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2134	CODE:
		2135	{
		2136	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2137	void *new;
		2138
		2139	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2140	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2141
		2142	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2143
		2144	RETVAL = &PL_sv_no;
		2145
		2146	if (new != (void *)-1)
		2147	{
		2148	RETVAL = new == (void *)mg->mg_ptr
		2149	? newSVpvn ("0 but true", 10)
		2150	: &PL_sv_yes;
		2151
		2152	mg->mg_ptr = (char *)new;
		2153	mg->mg_obj = (SV *)new_length;
		2154
		2155	SvPVX (scalar) = mg->mg_ptr;
		2156	SvCUR_set (scalar, new_length);
		2157	}
		2158	}
		2159	OUTPUT:
		2160	RETVAL
1473		2161
1474	int	2162	int
1475	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2163	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1476	ALIAS:	2164	ALIAS:
1477	mprotect = 1	2165	mprotect = 1
1478	CODE:	2166	CODE:
1479	{	2167	{
1480	STRLEN svlen;	2168	STRLEN svlen;
1481	void *addr = SvPVbyte (scalar, svlen);	2169	void *addr = SvPVbyte (scalar, svlen);
1482	size_t len = SvUV (length);	2170	STRLEN len = SvUV (length);
1483		2171
1484	if (offset < 0)	2172	if (offset < 0)
1485	offset += svlen;	2173	offset += svlen;
1486		2174
1487	if (offset < 0 || offset > svlen)	2175	if (offset < 0 || offset > svlen)
…		…
1501	}	2189	}
1502	OUTPUT:	2190	OUTPUT:
1503	RETVAL	2191	RETVAL
1504		2192
1505	int	2193	int
1506	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2194	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1507	CODE:	2195	CODE:
1508	{	2196	{
1509	STRLEN svlen;	2197	STRLEN svlen;
1510	void *addr = SvPVbyte (scalar, svlen);	2198	void *addr = SvPVbyte (scalar, svlen);
1511	size_t len = SvUV (length);	2199	size_t len = SvUV (length);
1512		2200
1513	if (offset < 0)	2201	if (offset < 0)
1514	offset += svlen;	2202	offset += svlen;
1515		2203
…		…
1519	if (!SvOK (length) || len + offset > svlen)	2207	if (!SvOK (length) || len + offset > svlen)
1520	len = svlen - offset;	2208	len = svlen - offset;
1521		2209
1522	addr = (void *)(((intptr_t)addr) + offset);	2210	addr = (void *)(((intptr_t)addr) + offset);
1523	eio_page_align (&addr, &len);	2211	eio_page_align (&addr, &len);
1524	#if _POSIX_MEMLOCK	2212	#if _POSIX_MEMLOCK_RANGE
1525	RETVAL = munlock (addr, len);	2213	RETVAL = munlock (addr, len);
1526	#else	2214	#else
1527	RETVAL = ((errno = ENOSYS), -1);	2215	RETVAL = EIO_ENOSYS ();
1528	#endif	2216	#endif
1529	}	2217	}
1530	OUTPUT:	2218	OUTPUT:
1531	RETVAL	2219	RETVAL
1532		2220
…		…
1534	munlockall ()	2222	munlockall ()
1535	CODE:	2223	CODE:
1536	#if _POSIX_MEMLOCK	2224	#if _POSIX_MEMLOCK
1537	munlockall ();	2225	munlockall ();
1538	#else	2226	#else
1539	RETVAL = -1;	2227	RETVAL = EIO_ENOSYS ();
1540	errno = ENOSYS;
1541	#endif	2228	#endif
1542	OUTPUT:	2229	OUTPUT:
1543	RETVAL	2230	RETVAL
		2231
		2232	int
		2233	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2234	CODE:
		2235	{
		2236	#if HAVE_LINUX_SPLICE
		2237	loff_t off_in_, off_out_;
		2238	RETVAL = splice (
		2239	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2240	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2241	length, flags
		2242	);
		2243	#else
		2244	RETVAL = EIO_ENOSYS ();
		2245	#endif
		2246	}
		2247	OUTPUT:
		2248	RETVAL
		2249
		2250	int
		2251	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2252	CODE:
		2253	#if HAVE_LINUX_SPLICE
		2254	RETVAL = tee (rfh, wfh, length, flags);
		2255	#else
		2256	RETVAL = EIO_ENOSYS ();
		2257	#endif
		2258	OUTPUT:
		2259	RETVAL
		2260
		2261	int
		2262	pipesize (aio_rfd rfh, int new_size = -1)
		2263	PROTOTYPE: $;$
		2264	CODE:
		2265	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2266	if (new_size >= 0)
		2267	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2268	else
		2269	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2270	#else
		2271	errno = ENOSYS;
		2272	RETVAL = -1;
		2273	#endif
		2274	OUTPUT:
		2275	RETVAL
		2276
		2277	void
		2278	pipe2 (int flags = 0)
		2279	PROTOTYPE: ;$
		2280	PPCODE:
		2281	{
		2282	int fd[2];
		2283	int res;
		2284
		2285	if (flags)
		2286	#if HAVE_PIPE2
		2287	res = pipe2 (fd, flags);
		2288	#else
		2289	res = (errno = ENOSYS, -1);
		2290	#endif
		2291	else
		2292	res = pipe (fd);
		2293
		2294	if (!res)
		2295	{
		2296	EXTEND (SP, 2);
		2297	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2298	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2299	}
		2300	}
		2301
		2302	void
		2303	eventfd (unsigned int initval = 0, int flags = 0)
		2304	PPCODE:
		2305	{
		2306	int fd;
		2307	#if HAVE_EVENTFD
		2308	fd = eventfd (initval, flags);
		2309	#else
		2310	fd = (errno = ENOSYS, -1);
		2311	#endif
		2312
		2313	XPUSHs (newmortalFH (fd, O_RDWR));
		2314	}
		2315
		2316	void
		2317	timerfd_create (int clockid, int flags = 0)
		2318	PPCODE:
		2319	{
		2320	int fd;
		2321	#if HAVE_TIMERFD
		2322	fd = timerfd_create (clockid, flags);
		2323	#else
		2324	fd = (errno = ENOSYS, -1);
		2325	#endif
		2326
		2327	XPUSHs (newmortalFH (fd, O_RDWR));
		2328	}
		2329
		2330	void
		2331	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2332	PPCODE:
		2333	{
		2334	int fd = s_fileno_croak (fh, 0);
		2335	#if HAVE_TIMERFD
		2336	int res;
		2337	struct itimerspec its, ots;
		2338
		2339	ts_set (&its.it_interval, interval);
		2340	ts_set (&its.it_value , value);
		2341	res = timerfd_settime (fd, flags, &its, &ots);
		2342
		2343	if (!res)
		2344	{
		2345	EXTEND (SP, 2);
		2346	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2347	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2348	}
		2349	#else
		2350	errno = ENOSYS;
		2351	#endif
		2352	}
		2353
		2354	void
		2355	timerfd_gettime (SV *fh)
		2356	PPCODE:
		2357	{
		2358	int fd = s_fileno_croak (fh, 0);
		2359	#if HAVE_TIMERFD
		2360	int res;
		2361	struct itimerspec ots;
		2362	res = timerfd_gettime (fd, &ots);
		2363
		2364	if (!res)
		2365	{
		2366	EXTEND (SP, 2);
		2367	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2368	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2369	}
		2370	#else
		2371	errno = ENOSYS;
		2372	#endif
		2373	}
		2374
		2375	UV
		2376	get_fdlimit ()
		2377	CODE:
		2378	#if HAVE_RLIMITS
		2379	struct rlimit rl;
		2380	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2381	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2382	#endif
		2383	XSRETURN_UNDEF;
		2384	OUTPUT:
		2385	RETVAL
		2386
		2387	void
		2388	min_fdlimit (UV limit = 0x7fffffffU)
		2389	CODE:
		2390	{
		2391	#if HAVE_RLIMITS
		2392	struct rlimit rl;
		2393	rlim_t orig_rlim_max;
		2394	UV bit;
		2395
		2396	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2397	goto fail;
		2398
		2399	if (rl.rlim_cur == RLIM_INFINITY)
		2400	XSRETURN_YES;
		2401
		2402	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2403
		2404	if (rl.rlim_cur < limit)
		2405	{
		2406	rl.rlim_cur = limit;
		2407
		2408	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2409	rl.rlim_max = rl.rlim_cur;
		2410	}
		2411
		2412	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2413	XSRETURN_YES;
		2414
		2415	if (errno == EPERM)
		2416	{
		2417	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2418	/* our limit overflows a system-wide limit */
		2419	/* try an adaptive algorithm, but do not lower the hardlimit */
		2420	rl.rlim_max = 0;
		2421	for (bit = 0x40000000U; bit; bit >>= 1)
		2422	{
		2423	rl.rlim_max |= bit;
		2424	rl.rlim_cur = rl.rlim_max;
		2425
		2426	/* nevr decrease the hard limit */
		2427	if (rl.rlim_max < orig_rlim_max)
		2428	break;
		2429
		2430	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2431	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2432	}
		2433
		2434	/* now, raise the soft limit to the max permitted */
		2435	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2436	{
		2437	rl.rlim_cur = rl.rlim_max;
		2438	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2439	errno = EPERM;
		2440	}
		2441	}
		2442	#endif
		2443	fail:
		2444	XSRETURN_UNDEF;
		2445	}
1544		2446
1545	void _on_next_submit (SV *cb)	2447	void _on_next_submit (SV *cb)
1546	CODE:	2448	CODE:
1547	SvREFCNT_dec (on_next_submit);	2449	SvREFCNT_dec (on_next_submit);
1548	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2450	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1549		2451
1550	PROTOTYPES: DISABLE	2452	PROTOTYPES: DISABLE
1551		2453
		2454	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2455
		2456	BOOT:
		2457	{
		2458	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2459	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2460	}
		2461
		2462	void
		2463	DESTROY (SV *self)
		2464	CODE:
		2465	{
		2466	aio_wd wd = SvAIO_WD (self);
		2467	#if HAVE_AT
		2468	{
		2469	SV *callback = &PL_sv_undef;
		2470	dREQ; /* clobbers next_pri :/ */
		2471	next_pri = req->pri; /* restore next_pri */
		2472	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2473	req->type = EIO_WD_CLOSE;
		2474	req->wd = wd;
		2475	REQ_SEND;
		2476	}
		2477	#else
		2478	eio_wd_close_sync (wd);
		2479	#endif
		2480	}
		2481
1552	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2482	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1553		2483
1554	void	2484	void
1555	cancel (aio_req_ornot req)	2485	cancel (aio_req_ornot req)
1556	CODE:	2486	CODE:
1557	eio_cancel (req);	2487	eio_cancel (req);
1558		2488
1559	void	2489	void
1560	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2490	cb (aio_req_ornot req, SV *callback = NO_INIT)
1561	PPCODE:	2491	PPCODE:
1562	{	2492	{
1563	if (GIMME_V != G_VOID)	2493	if (GIMME_V != G_VOID)
1564	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2494	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1565		2495
1566	if (items > 1)	2496	if (items > 1)
1567	{	2497	{
1568	SV *cb_cv =get_cb (callback);	2498	SV *cb_cv = get_cb (callback);
1569		2499
1570	SvREFCNT_dec (req->callback);	2500	SvREFCNT_dec (req->callback);
1571	req->callback = SvREFCNT_inc (cb_cv);	2501	req->callback = SvREFCNT_inc (cb_cv);
1572	}	2502	}
1573	}	2503	}
…		…
1630	limit (aio_req grp, int limit)	2560	limit (aio_req grp, int limit)
1631	CODE:	2561	CODE:
1632	eio_grp_limit (grp, limit);	2562	eio_grp_limit (grp, limit);
1633		2563
1634	void	2564	void
1635	feed (aio_req grp, SV *callback=&PL_sv_undef)	2565	feed (aio_req grp, SV *callback = &PL_sv_undef)
1636	CODE:	2566	CODE:
1637	{	2567	{
1638	SvREFCNT_dec (grp->sv2);	2568	SvREFCNT_dec (grp->sv2);
1639	grp->sv2 = newSVsv (callback);	2569	grp->sv2 = newSVsv (callback);
1640	grp->feed = aio_grp_feed;	2570	grp->feed = aio_grp_feed;

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