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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.176 by root, Thu Dec 2 10:04:47 2010 UTC vs.
Revision 1.265 by root, Tue Aug 14 11:50:43 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/config.h"
124	#include "libeio/eio.h"	164	#include "libeio/eio.h"
125		165
126	#ifndef POSIX_FADV_NORMAL	166	static int req_invoke (eio_req *req);
127	# define POSIX_FADV_NORMAL 0	167	#define EIO_FINISH(req) req_invoke (req)
128	#endif	168	static void req_destroy (eio_req *grp);
129	#ifndef POSIX_FADV_SEQUENTIAL	169	#define EIO_DESTROY(req) req_destroy (req)
130	# define POSIX_FADV_SEQUENTIAL 0	170
131	#endif	171	#include "libeio/eio.c"
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		172
145	#if !HAVE_POSIX_FADVISE	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
150	# define POSIX_MADV_NORMAL 0
151	#endif
152	#ifndef POSIX_MADV_SEQUENTIAL
153	# define POSIX_MADV_SEQUENTIAL 0
154	#endif
155	#ifndef POSIX_MADV_RANDOM
156	# define POSIX_MADV_RANDOM 0
157	#endif
158	#ifndef POSIX_MADV_WILLNEED
159	# define POSIX_MADV_WILLNEED 0
160	#endif
161	#ifndef POSIX_MADV_DONTNEED
162	# define POSIX_MADV_DONTNEED 0
163	#endif
164
165	#if !HAVE_POSIX_MADVISE	177	#if !HAVE_POSIX_MADVISE
166	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */	178	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
167	#endif
168
169	#ifndef PROT_NONE
170	# define PROT_NONE 0
171	#endif
172	#ifndef PROT_READ
173	# define PROT_READ 0
174	#endif
175	#ifndef PROT_WRITE
176	# define PROT_READ 0
177	#endif
178	#ifndef PROT_EXEC
179	# define PROT_EXEC 0
180	#endif
181
182	#ifndef ST_NODEV
183	# define ST_NODEV 0
184	#endif
185	#ifndef ST_NOEXEC
186	# define ST_NOEXEC 0
187	#endif
188	#ifndef ST_SYNCHRONOUS
189	# define ST_SYNCHRONOUS 0
190	#endif
191	#ifndef ST_MANDLOCK
192	# define ST_MANDLOCK 0
193	#endif
194	#ifndef ST_WRITE
195	# define ST_WRITE 0
196	#endif
197	#ifndef ST_APPEND
198	# define ST_APPEND 0
199	#endif
200	#ifndef ST_IMMUTABLE
201	# define ST_IMMUTABLE 0
202	#endif
203	#ifndef ST_NOATIME
204	# define ST_NOATIME 0
205	#endif
206	#ifndef ST_NODIRATIME
207	# define ST_NODIRATIME 0
208	#endif
209	#ifndef ST_RELATIME
210	# define ST_RELATIME 0
211	#endif	179	#endif
212		180
213	#ifndef MAP_ANONYMOUS	181	#ifndef MAP_ANONYMOUS
214	# ifdef MAP_ANON	182	# ifdef MAP_ANON
215	# define MAP_ANONYMOUS MAP_ANON	183	# define MAP_ANONYMOUS MAP_ANON
216	# else	184	# else
217	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	185	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
218	# endif	186	# endif
219	#endif	187	#endif
220	#ifndef MAP_HUGETLB
221	# define MAP_HUGETLB 0
222	#endif
223	#ifndef MAP_LOCKED
224	# define MAP_LOCKED 0
225	#endif
226	#ifndef MAP_NORESERVE
227	# define MAP_NORESERVE 0
228	#endif
229	#ifndef MAP_POPULATE
230	# define MAP_POPULATE 0
231	#endif
232	#ifndef MAP_NONBLOCK
233	# define MAP_NONBLOCK 0
234	#endif
235		188
236	#ifndef PAGESIZE	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	#if PAGESIZE <= 0
237	# define PAGESIZE sysconf (_SC_PAGESIZE)	200	# define PAGESIZE sysconf (_SC_PAGESIZE)
238	#endif	201	#endif
239		202
240	static int req_invoke (eio_req *req);	203	/*****************************************************************************/
241	#define EIO_FINISH(req) req_invoke (req)	204
242	static void req_destroy (eio_req *grp);	205	#if !_POSIX_MAPPED_FILES
243	#define EIO_DESTROY(req) req_destroy (req)	206	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, (void *)-1)
		207	# define munmap(addr,length) EIO_ENOSYS ()
		208	#endif
		209
		210	#if !_POSIX_MEMORY_PROTECTION
		211	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		212	#endif
		213
		214	#if !MREMAP_MAYMOVE
		215	# define mremap(old_address,old_size,new_size,flags,new_address) (errno = ENOSYS, (void *)-1)
		216	#endif
		217
		218	#define FOREIGN_MAGIC PERL_MAGIC_ext
		219
		220	static int ecb_cold
		221	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		222	{
		223	int old_errno = errno;
		224	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		225	errno = old_errno;
		226
		227	mg->mg_obj = 0; /* just in case */
		228
		229	SvREADONLY_off (sv);
		230
		231	if (SvPVX (sv) != mg->mg_ptr)
		232	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		233
		234	SvCUR_set (sv, 0);
		235	SvPVX (sv) = 0;
		236	SvOK_off (sv);
		237
		238	return 0;
		239	}
		240
		241	static MGVTBL mmap_vtbl = {
		242	0, 0, 0, 0, mmap_free
		243	};
		244
		245	static int ecb_cold
		246	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		247	{
		248	free (mg->mg_ptr);
		249	mg->mg_obj = 0; /* just in case */
		250
		251	SvREADONLY_off (sv);
		252
		253	if (SvPVX (sv) != mg->mg_ptr)
		254	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		255
		256	SvCUR_set (sv, 0);
		257	SvPVX (sv) = 0;
		258	SvOK_off (sv);
		259
		260	return 0;
		261	}
		262
		263	static MGVTBL sysfree_vtbl = {
		264	0, 0, 0, 0, sysfree_free
		265	};
		266
		267	/*****************************************************************************/
		268
		269	/* helper: set scalar to foreign ptr with custom free */
		270	static void
		271	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		272	{
		273	sv_force_normal (sv);
		274
		275	/* we store the length in mg_obj, as namlen is I32 :/ */
		276	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		277	->mg_obj = (SV *)length;
		278
		279	SvUPGRADE (sv, SVt_PV); /* nop... */
		280
		281	if (SvLEN (sv))
		282	Safefree (SvPVX (sv));
		283
		284	SvPVX (sv) = (char *)addr;
		285	SvCUR_set (sv, length);
		286	SvLEN_set (sv, 0);
		287	SvPOK_only (sv);
		288	}
		289
		290	static void
		291	sv_clear_foreign (SV *sv)
		292	{
		293	/* todo: iterate over magic and only free ours, but of course */
		294	/* the perl5porters will call that (correct) behaviour buggy */
		295	sv_unmagic (sv, FOREIGN_MAGIC);
		296	}
		297
		298	/*****************************************************************************/
		299
		300	/* defines all sorts of constants to 0 unless they are already defined */
		301	/* also provides const_iv_ and const_niv_ macros for them */
		302	#include "def0.h"
		303
		304	/*****************************************************************************/
		305
		306	static void
		307	fiemap (eio_req *req)
		308	{
		309	req->result = -1;
		310
		311	#if HAVE_FIEMAP
		312	/* assume some c99 */
		313	struct fiemap *fiemap = 0;
		314	size_t end_offset;
		315	int count = req->int3;
		316
		317	req->flags |= EIO_FLAG_PTR1_FREE;
		318
		319	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		320	/* increase in 3.5kb steps */
		321	if (count < 0)
		322	count = 8;
		323
		324	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		325	errno = ENOMEM;
		326	if (!fiemap)
		327	return;
		328
		329	req->ptr1 = fiemap;
		330
		331	fiemap->fm_start = req->offs;
		332	fiemap->fm_length = req->size;
		333	fiemap->fm_flags = req->int2;
		334	fiemap->fm_extent_count = count;
		335
		336	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		337	return;
		338
		339	if (req->int3 >= 0 /* not autosizing */
		340	|| !fiemap->fm_mapped_extents /* no more extents */
		341	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		342	goto done;
		343
		344	/* else we have to loop -
		345	* it would be tempting (actually I tried that first) to just query the
		346	* number of extents needed, but linux often feels like not returning all
		347	* extents, without telling us it left any out. this complicates
		348	* this quite a bit.
		349	*/
		350
		351	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		352
		353	for (;;)
		354	{
		355	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		356	char scratch[3072];
		357	struct fiemap *incmap = (struct fiemap *)scratch;
		358
		359	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		360	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		361	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		362	incmap->fm_flags = fiemap->fm_flags;
		363	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		364
		365	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		366	return;
		367
		368	if (!incmap->fm_mapped_extents)
		369	goto done;
		370
		371	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		372	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		373	errno = ENOMEM;
		374	if (!fiemap)
		375	return;
		376
		377	req->ptr1 = fiemap;
		378
		379	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		380	{
		381	struct fiemap_extent *e = incmap->fm_extents + count;
		382
		383	if (e->fe_logical + e->fe_length >= end_offset)
		384	goto done;
		385
		386	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		387
		388	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		389	goto done;
		390
		391	}
		392	}
		393
		394	done:
		395	req->result = 0;
		396
		397	#else
		398	errno = ENOSYS;
		399	#endif
		400	}
		401
		402	/*****************************************************************************/
244		403
245	enum {	404	enum {
246	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	405	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
247	};	406	};
248		407
249	#include "libeio/eio.c"
250
251	typedef eio_req *aio_req;	408	typedef eio_req *aio_req;
252	typedef eio_req *aio_req_ornot;	409	typedef eio_req *aio_req_ornot;
		410	typedef eio_wd aio_wd;
253		411
254	static SV *on_next_submit;	412	static SV *on_next_submit;
255	static int next_pri = EIO_PRI_DEFAULT;	413	static int next_pri = EIO_PRI_DEFAULT;
256	static int max_outstanding;	414	static int max_outstanding;
257		415
258	static s_epipe respipe;	416	static s_epipe respipe;
259		417
260	static void req_destroy (aio_req req);	418	static void req_destroy (aio_req req);
261	static void req_cancel (aio_req req);	419	static void req_cancel (aio_req req);
262		420
263	static void want_poll (void)	421	static void
		422	want_poll (void)
264	{	423	{
265	/* write a dummy byte to the pipe so fh becomes ready */	424	/* write a dummy byte to the pipe so fh becomes ready */
266	s_epipe_signal (&respipe);	425	s_epipe_signal (&respipe);
267	}	426	}
268		427
269	static void done_poll (void)	428	static void
		429	done_poll (void)
270	{	430	{
271	/* read any signals sent by the worker threads */	431	/* read any signals sent by the worker threads */
272	s_epipe_drain (&respipe);	432	s_epipe_drain (&respipe);
273	}	433	}
274		434
275	/* must be called at most once */	435	/* must be called at most once */
		436	static SV *
276	static SV *req_sv (aio_req req, HV *stash)	437	req_sv (aio_req req, HV *stash)
277	{	438	{
278	if (!req->self)	439	if (!req->self)
279	{	440	{
280	req->self = (SV *)newHV ();	441	req->self = (SV *)newHV ();
281	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	442	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
282	}	443	}
283		444
284	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	445	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
285	}	446	}
286		447
287	static aio_req SvAIO_REQ (SV *sv)	448	static SV *
		449	newSVaio_wd (aio_wd wd)
		450	{
		451	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		452	}
		453
		454	static aio_req
		455	SvAIO_REQ (SV *sv)
288	{	456	{
289	MAGIC *mg;	457	MAGIC *mg;
290		458
291	if (!SvROK (sv)	459	if (!SvROK (sv)
		460	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
292	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	461	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
293	&& SvSTASH (SvRV (sv)) != aio_req_stash	462	&& SvSTASH (SvRV (sv)) != aio_req_stash
294	&& !sv_derived_from (sv, "IO::AIO::REQ")))	463	&& !sv_derived_from (sv, "IO::AIO::REQ")))
295	croak ("object of class IO::AIO::REQ expected");	464	croak ("object of class IO::AIO::REQ expected");
296		465
297	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	466	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
298		467
299	return mg ? (aio_req)mg->mg_ptr : 0;	468	return mg ? (aio_req)mg->mg_ptr : 0;
300	}	469	}
301		470
		471	static aio_wd
		472	SvAIO_WD (SV *sv)
		473	{
		474	if (!SvROK (sv)
		475	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		476	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		477	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		478
		479	return (aio_wd)(long)SvIVX (SvRV (sv));
		480	}
		481
		482	static SV *
		483	newmortalFH (int fd, int flags)
		484	{
		485	if (fd < 0)
		486	return &PL_sv_undef;
		487
		488	GV *gv = (GV *)sv_newmortal ();
		489	char sym[64];
		490	int symlen;
		491
		492	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		493	gv_init (gv, aio_stash, sym, symlen, 0);
		494
		495	symlen = snprintf (
		496	sym,
		497	sizeof (sym),
		498	"%s&=%d",
		499	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		500	fd
		501	);
		502
		503	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		504	? (SV *)gv : &PL_sv_undef;
		505	}
		506
		507	static void
302	static void aio_grp_feed (aio_req grp)	508	aio_grp_feed (aio_req grp)
303	{	509	{
304	if (grp->sv2 && SvOK (grp->sv2))	510	if (grp->sv2 && SvOK (grp->sv2))
305	{	511	{
306	dSP;	512	dSP;
307		513
…		…
315	FREETMPS;	521	FREETMPS;
316	LEAVE;	522	LEAVE;
317	}	523	}
318	}	524	}
319		525
		526	static void
320	static void req_submit (eio_req *req)	527	req_submit (eio_req *req)
321	{	528	{
322	eio_submit (req);	529	eio_submit (req);
323		530
324	if (expect_false (on_next_submit))	531	if (expect_false (on_next_submit))
325	{	532	{
…		…
332	PUTBACK;	539	PUTBACK;
333	call_sv (cb, G_DISCARD | G_EVAL);	540	call_sv (cb, G_DISCARD | G_EVAL);
334	}	541	}
335	}	542	}
336		543
		544	static int
337	static int req_invoke (eio_req *req)	545	req_invoke (eio_req *req)
338	{	546	{
339	if (req->flags & FLAG_SV2_RO_OFF)	547	if (req->flags & FLAG_SV2_RO_OFF)
340	SvREADONLY_off (req->sv2);	548	SvREADONLY_off (req->sv2);
341		549
342	if (!EIO_CANCELLED (req) && req->callback)	550	if (!EIO_CANCELLED (req) && req->callback)
…		…
353	/* do not recreate the result IV from scratch each time */	561	/* do not recreate the result IV from scratch each time */
354	if (expect_true (sv_result_cache))	562	if (expect_true (sv_result_cache))
355	{	563	{
356	sv_result = sv_result_cache; sv_result_cache = 0;	564	sv_result = sv_result_cache; sv_result_cache = 0;
357	SvIV_set (sv_result, req->result);	565	SvIV_set (sv_result, req->result);
		566	SvIOK_only (sv_result);
358	}	567	}
359	else	568	else
360	{	569	{
361	sv_result = newSViv (req->result);	570	sv_result = newSViv (req->result);
362	SvREADONLY_on (sv_result);	571	SvREADONLY_on (sv_result);
363	}	572	}
364		573
365	switch (req->type)	574	switch (req->type)
366	{	575	{
		576	case EIO_WD_OPEN:
		577	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		578	break;
		579
367	case EIO_READDIR:	580	case EIO_READDIR:
368	{	581	{
369	SV *rv = &PL_sv_undef;	582	SV *rv = &PL_sv_undef;
370		583
371	if (req->result >= 0)	584	if (req->result >= 0)
…		…
424	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	637	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
425	}	638	}
426	break;	639	break;
427		640
428	case EIO_OPEN:	641	case EIO_OPEN:
429	{	642	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
430	/* convert fd to fh */
431	SV *fh = &PL_sv_undef;
432
433	if (req->result >= 0)
434	{
435	GV *gv = (GV *)sv_newmortal ();
436	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
437	char sym [64];
438	int symlen;
439
440	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
441	gv_init (gv, aio_stash, sym, symlen, 0);
442
443	symlen = snprintf (
444	sym,
445	sizeof (sym),
446	"%s&=%d",
447	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
448	(int)req->result
449	);
450
451	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
452	fh = (SV *)gv;
453	}
454
455	PUSHs (fh);
456	}
457	break;	643	break;
458		644
459	case EIO_STATVFS:	645	case EIO_STATVFS:
460	case EIO_FSTATVFS:	646	case EIO_FSTATVFS:
461	{	647	{
462	SV *rv = &PL_sv_undef;	648	SV *rv = &PL_sv_undef;
463		649
		650	#ifndef _WIN32
464	if (req->result >= 0)	651	if (req->result >= 0)
465	{	652	{
466	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	653	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
467	HV *hv = newHV ();	654	HV *hv = newHV ();
		655	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		656	* chooses to make it a struct.
		657	*/
		658	unsigned long fsid = 0;
		659	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
468		660
469	rv = sv_2mortal (newRV_noinc ((SV *)hv));	661	rv = sv_2mortal (newRV_noinc ((SV *)hv));
470		662
471	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	663	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
472	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	664	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
474	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	666	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
475	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	667	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
476	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	668	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
477	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	669	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
478	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	670	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
479	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	671	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
480	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	672	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
481	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	673	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
482	}	674	}
		675	#endif
483		676
484	PUSHs (rv);	677	PUSHs (rv);
485	}	678	}
486		679
487	break;	680	break;
…		…
503	case EIO_NOP:	696	case EIO_NOP:
504	case EIO_BUSY:	697	case EIO_BUSY:
505	break;	698	break;
506		699
507	case EIO_READLINK:	700	case EIO_READLINK:
		701	case EIO_REALPATH:
508	if (req->result > 0)	702	if (req->result > 0)
509	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	703	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
510	break;	704	break;
511		705
512	case EIO_STAT:	706	case EIO_STAT:
513	case EIO_LSTAT:	707	case EIO_LSTAT:
514	case EIO_FSTAT:	708	case EIO_FSTAT:
515	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	709	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		710
516	PL_laststatval = req->result;	711	if (!(PL_laststatval = req->result))
		712	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
517	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	713	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
		714
518	PUSHs (sv_result);	715	PUSHs (sv_result);
		716	break;
		717
		718	case EIO_SEEK:
		719	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
519	break;	720	break;
520		721
521	case EIO_READ:	722	case EIO_READ:
522	{	723	{
523	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	724	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
…		…
526	SvSETMAGIC (req->sv2);	727	SvSETMAGIC (req->sv2);
527	PUSHs (sv_result);	728	PUSHs (sv_result);
528	}	729	}
529	break;	730	break;
530		731
		732	case EIO_SLURP:
		733	{
		734	if (req->result >= 0)
		735	{
		736	/* if length was originally not known, we steal the malloc'ed memory */
		737	if (req->flags & EIO_FLAG_PTR2_FREE)
		738	{
		739	req->flags &= ~EIO_FLAG_PTR2_FREE;
		740	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		741	}
		742	else
		743	{
		744	SvCUR_set (req->sv2, req->result);
		745	*SvEND (req->sv2) = 0;
		746	SvPOK_only (req->sv2);
		747	}
		748
		749	SvSETMAGIC (req->sv2);
		750	}
		751
		752	PUSHs (sv_result);
		753	}
		754	break;
		755
		756	case EIO_CUSTOM:
		757	if (req->feed == fiemap)
		758	{
		759	#if HAVE_FIEMAP
		760	if (!req->result)
		761	{
		762	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		763
		764	if (fiemap->fm_extent_count)
		765	{
		766	AV *av = newAV ();
		767	int i;
		768
		769	while (fiemap->fm_mapped_extents)
		770	{
		771	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		772	AV *ext_av = newAV ();
		773
		774	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		775	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		776	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		777	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		778
		779	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		780	}
		781
		782	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		783	}
		784	else
		785	{
		786	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		787	PUSHs (sv_result);
		788	}
		789	}
		790	#endif
		791	}
		792	else
		793	PUSHs (sv_result);
		794	break;
		795
531	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), su fudge result value */	796	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
532	if (req->result > 0)	797	if (req->result > 0)
533	SvIV_set (sv_result, 0);	798	SvIV_set (sv_result, 0);
534	/* FALLTHROUGH */	799	/* FALLTHROUGH */
535		800
536	default:	801	default:
…		…
556	}	821	}
557		822
558	return !!SvTRUE (ERRSV);	823	return !!SvTRUE (ERRSV);
559	}	824	}
560		825
		826	static void
561	static void req_destroy (aio_req req)	827	req_destroy (aio_req req)
562	{	828	{
563	if (req->self)	829	if (req->self)
564	{	830	{
565	sv_unmagic (req->self, PERL_MAGIC_ext);	831	sv_unmagic (req->self, PERL_MAGIC_ext);
566	SvREFCNT_dec (req->self);	832	SvREFCNT_dec (req->self);
567	}	833	}
568		834
569	SvREFCNT_dec (req->sv1);	835	SvREFCNT_dec (req->sv1);
570	SvREFCNT_dec (req->sv2);	836	SvREFCNT_dec (req->sv2);
		837	SvREFCNT_dec (req->sv3);
		838	SvREFCNT_dec (req->sv4);
571	SvREFCNT_dec (req->callback);	839	SvREFCNT_dec (req->callback);
572		840
573	Safefree (req);	841	free (req);
574	}	842	}
575		843
		844	static void
576	static void req_cancel_subs (aio_req grp)	845	req_cancel_subs (aio_req grp)
577	{	846	{
578	aio_req sub;
579
580	if (grp->type != EIO_GROUP)	847	if (grp->type != EIO_GROUP)
581	return;	848	return;
582		849
583	SvREFCNT_dec (grp->sv2);	850	SvREFCNT_dec (grp->sv2);
584	grp->sv2 = 0;	851	grp->sv2 = 0;
585		852
586	eio_grp_cancel (grp);	853	eio_grp_cancel (grp);
587	}	854	}
588		855
589	static void	856	static void ecb_cold
590	create_respipe (void)	857	create_respipe (void)
591	{	858	{
592	if (s_epipe_renew (&respipe))	859	if (s_epipe_renew (&respipe))
593	croak ("IO::AIO: unable to initialize result pipe");	860	croak ("IO::AIO: unable to initialize result pipe");
594	}	861	}
595		862
596	static void poll_wait (void)	863	static void
		864	poll_wait (void)
597	{	865	{
598	while (eio_nreqs ())	866	while (eio_nreqs ())
599	{	867	{
600	int size;	868	int size;
601		869
602	X_LOCK (reslock);	870	X_LOCK (EIO_POOL->reslock);
603	size = res_queue.size;	871	size = EIO_POOL->res_queue.size;
604	X_UNLOCK (reslock);	872	X_UNLOCK (EIO_POOL->reslock);
605		873
606	if (size)	874	if (size)
607	return;	875	return;
608		876
609	etp_maybe_start_thread ();	877	etp_maybe_start_thread (EIO_POOL);
610		878
611	s_epipe_wait (&respipe);	879	s_epipe_wait (&respipe);
612	}	880	}
613	}	881	}
614		882
615	static int poll_cb (void)	883	static int
		884	poll_cb (void)
616	{	885	{
617	for (;;)	886	for (;;)
618	{	887	{
619	int res = eio_poll ();	888	int res = eio_poll ();
620		889
…		…
626		895
627	poll_wait ();	896	poll_wait ();
628	}	897	}
629	}	898	}
630		899
631	static void atfork_child (void)	900	static void ecb_cold
		901	reinit (void)
632	{	902	{
633	create_respipe ();	903	create_respipe ();
634	}
635		904
636	/*****************************************************************************/	905	if (eio_init (want_poll, done_poll) < 0)
637		906	croak ("IO::AIO: unable to initialise eio library");
638	#if !_POSIX_MAPPED_FILES
639	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
640	# define munmap(addr,length) (errno = ENOSYS, -1)
641	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
642	# define PROT_NONE 0
643	# define PROT_WRITE 0
644	# define MAP_PRIVATE 0
645	# define MAP_SHARED 0
646	# define MAP_FIXED 0
647	#endif
648
649	#define MMAP_MAGIC PERL_MAGIC_ext
650
651	static int
652	mmap_free (pTHX_ SV *sv, MAGIC *mg)
653	{
654	int old_errno = errno;
655	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
656	errno = old_errno;
657
658	mg->mg_obj = 0; /* just in case */
659
660	SvREADONLY_off (sv);
661
662	if (SvPVX (sv) != mg->mg_ptr)
663	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
664
665	SvCUR_set (sv, 0);
666	SvPVX (sv) = 0;
667	SvOK_off (sv);
668
669	return 0;
670	}	907	}
671
672	static MGVTBL mmap_vtbl = {
673	0, 0, 0, 0, mmap_free
674	};
675		908
676	/*****************************************************************************/	909	/*****************************************************************************/
677		910
678	static SV *	911	static SV *
679	get_cb (SV *cb_sv)	912	get_cb (SV *cb_sv)
680	{	913	{
681	SvGETMAGIC (cb_sv);	914	SvGETMAGIC (cb_sv);
682	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	915	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
683	}	916	}
684		917
		918	static aio_req ecb_noinline
		919	dreq (SV *callback)
		920	{
		921	SV *cb_cv;
		922	aio_req req;
		923	int req_pri = next_pri;
		924	next_pri = EIO_PRI_DEFAULT;
		925
		926	cb_cv = get_cb (callback);
		927
		928	req = calloc (sizeof (*req), 1);
		929	if (!req)
		930	croak ("out of memory during eio_req allocation");
		931
		932	req->callback = SvREFCNT_inc (cb_cv);
		933	req->pri = req_pri;
		934
		935	return req;
		936	}
		937
685	#define dREQ \	938	#define dREQ \
686	SV *cb_cv; \	939	aio_req req = dreq (callback); \
687	aio_req req; \
688	int req_pri = next_pri; \
689	next_pri = EIO_PRI_DEFAULT; \
690	\
691	cb_cv = get_cb (callback); \
692	\
693	Newz (0, req, 1, eio_req); \
694	if (!req) \
695	croak ("out of memory during eio_req allocation"); \
696	\
697	req->callback = SvREFCNT_inc (cb_cv); \
698	req->pri = req_pri
699		940
700	#define REQ_SEND \	941	#define REQ_SEND \
701	PUTBACK; \	942	PUTBACK; \
702	req_submit (req); \	943	req_submit (req); \
703	SPAGAIN; \	944	SPAGAIN; \
704	\	945	\
705	if (GIMME_V != G_VOID) \	946	if (GIMME_V != G_VOID) \
706	XPUSHs (req_sv (req, aio_req_stash));	947	XPUSHs (req_sv (req, aio_req_stash));
707		948
		949	ecb_inline void
		950	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		951	{
		952	if (expect_false (SvROK (path)))
		953	{
		954	SV *rv = SvRV (path);
		955	SV *wdob;
		956
		957	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		958	{
		959	path = AvARRAY (rv)[1];
		960	wdob = AvARRAY (rv)[0];
		961
		962	if (SvOK (wdob))
		963	{
		964	*wd = SvAIO_WD (wdob);
		965	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		966	}
		967	else
		968	*wd = EIO_INVALID_WD;
		969	}
		970	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		971	{
		972	*wd = (aio_wd)(long)SvIVX (rv);
		973	*wdsv = SvREFCNT_inc_NN (rv);
		974	*ptr = ".";
		975	return; /* path set to "." */
		976	}
		977	else
		978	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		979	}
		980
		981	*pathsv = newSVsv (path);
		982	*ptr = SvPVbyte_nolen (*pathsv);
		983	}
		984
		985	static void ecb_noinline
		986	req_set_path1 (aio_req req, SV *path)
		987	{
		988	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		989	}
		990
		991	static void ecb_noinline
		992	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		993	{
		994	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		995
		996	switch (SvTYPE (rv))
		997	{
		998	case SVt_PVIO:
		999	case SVt_PVLV:
		1000	case SVt_PVGV:
		1001	req->type = type_fh;
		1002	req->sv1 = newSVsv (fh_or_path);
		1003	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1004	break;
		1005
		1006	default:
		1007	req->type = type_path;
		1008	req_set_path1 (req, fh_or_path);
		1009	break;
		1010	}
		1011	}
		1012
		1013	/*****************************************************************************/
		1014
		1015	static void
		1016	ts_set (struct timespec *ts, NV value)
		1017	{
		1018	ts->tv_sec = value;
		1019	ts->tv_nsec = (value - ts->tv_sec) * 1e9;
		1020	}
		1021
		1022	static NV
		1023	ts_get (const struct timespec *ts)
		1024	{
		1025	return ts->tv_sec + ts->tv_nsec * 1e-9;
		1026	}
		1027
		1028	/*****************************************************************************/
		1029
		1030	XS(boot_IO__AIO) ecb_cold;
		1031
708	MODULE = IO::AIO PACKAGE = IO::AIO	1032	MODULE = IO::AIO PACKAGE = IO::AIO
709		1033
710	PROTOTYPES: ENABLE	1034	PROTOTYPES: ENABLE
711		1035
712	BOOT:	1036	BOOT:
…		…
716	IV iv;	1040	IV iv;
717	} *civ, const_iv[] = {	1041	} *civ, const_iv[] = {
718	# define const_niv(name, value) { # name, (IV) value },	1042	# define const_niv(name, value) { # name, (IV) value },
719	# define const_iv(name) { # name, (IV) name },	1043	# define const_iv(name) { # name, (IV) name },
720	# define const_eio(name) { # name, (IV) EIO_ ## name },	1044	# define const_eio(name) { # name, (IV) EIO_ ## name },
		1045
		1046	/* you have to re-run ./gendef0 after adding/removing any constants here */
		1047	/* the first block can be undef if missing */
		1048	const_iv (ENOSYS)
721	const_iv (EXDEV)	1049	const_iv (EXDEV)
722	const_iv (ENOSYS)	1050	const_iv (EBADR)
		1051
		1052	/* for lseek */
		1053	const_iv (SEEK_DATA)
		1054	const_iv (SEEK_HOLE)
		1055
		1056	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		1057	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		1058	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		1059	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		1060	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		1061	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1062
		1063	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1064	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1065	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1066	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1067	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1068
		1069	/* the second block will be 0 when missing */
		1070	const_iv (O_ACCMODE)
		1071
723	const_iv (O_RDONLY)	1072	const_iv (O_RDONLY)
724	const_iv (O_WRONLY)	1073	const_iv (O_WRONLY)
725	const_iv (O_RDWR)	1074	const_iv (O_RDWR)
726	const_iv (O_CREAT)	1075	const_iv (O_CREAT)
727	const_iv (O_TRUNC)	1076	const_iv (O_TRUNC)
728	const_iv (O_EXCL)	1077	const_iv (O_EXCL)
729	const_iv (O_APPEND)	1078	const_iv (O_APPEND)
730	#ifndef _WIN32	1079
		1080	const_iv (O_ASYNC)
		1081	const_iv (O_DIRECT)
		1082	const_iv (O_NOATIME)
		1083
		1084	const_iv (O_CLOEXEC)
		1085	const_iv (O_NOCTTY)
		1086	const_iv (O_NOFOLLOW)
		1087	const_iv (O_NONBLOCK)
		1088	const_iv (O_EXEC)
		1089	const_iv (O_SEARCH)
		1090	const_iv (O_DIRECTORY)
		1091	const_iv (O_DSYNC)
		1092	const_iv (O_RSYNC)
		1093	const_iv (O_SYNC)
		1094	const_iv (O_PATH)
		1095	const_iv (O_TMPFILE)
		1096	const_iv (O_TTY_INIT)
		1097
731	const_iv (S_IFIFO)	1098	const_iv (S_IFIFO)
732	#endif	1099	const_iv (S_IFCHR)
733	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	1100	const_iv (S_IFBLK)
734	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	1101	const_iv (S_IFLNK)
735	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	1102	const_iv (S_IFREG)
736	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	1103	const_iv (S_IFDIR)
737	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	1104	const_iv (S_IFWHT)
738	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	1105	const_iv (S_IFSOCK)
739		1106	const_iv (S_IFMT)
740	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
741	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
742	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
743	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
744	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
745		1107
746	const_iv (ST_RDONLY)	1108	const_iv (ST_RDONLY)
747	const_iv (ST_NOSUID)	1109	const_iv (ST_NOSUID)
748	const_iv (ST_NODEV)	1110	const_iv (ST_NODEV)
749	const_iv (ST_NOEXEC)	1111	const_iv (ST_NOEXEC)
…		…
759	const_iv (PROT_NONE)	1121	const_iv (PROT_NONE)
760	const_iv (PROT_EXEC)	1122	const_iv (PROT_EXEC)
761	const_iv (PROT_READ)	1123	const_iv (PROT_READ)
762	const_iv (PROT_WRITE)	1124	const_iv (PROT_WRITE)
763		1125
764	/*const_iv (MAP_FIXED)*/
765	const_iv (MAP_PRIVATE)	1126	const_iv (MAP_PRIVATE)
766	const_iv (MAP_SHARED)	1127	const_iv (MAP_SHARED)
		1128	const_iv (MAP_FIXED)
767	const_iv (MAP_ANONYMOUS)	1129	const_iv (MAP_ANONYMOUS)
768		1130
769	/* linuxish */	1131	/* linuxish */
770	const_iv (MAP_HUGETLB)
771	const_iv (MAP_LOCKED)	1132	const_iv (MAP_LOCKED)
772	const_iv (MAP_NORESERVE)	1133	const_iv (MAP_NORESERVE)
773	const_iv (MAP_POPULATE)	1134	const_iv (MAP_POPULATE)
774	const_iv (MAP_NONBLOCK)	1135	const_iv (MAP_NONBLOCK)
		1136	const_iv (MAP_GROWSDOWN)
		1137	const_iv (MAP_32BIT)
		1138	const_iv (MAP_HUGETLB)
		1139	const_iv (MAP_STACK)
		1140
		1141	const_iv (MREMAP_MAYMOVE)
		1142	const_iv (MREMAP_FIXED)
		1143
		1144	const_iv (F_DUPFD_CLOEXEC)
		1145
		1146	const_iv (MSG_CMSG_CLOEXEC)
		1147	const_iv (SOCK_CLOEXEC)
		1148
		1149	const_iv (F_OFD_GETLK)
		1150	const_iv (F_OFD_SETLK)
		1151	const_iv (F_OFD_GETLKW)
		1152
		1153	const_iv (FIFREEZE)
		1154	const_iv (FITHAW)
		1155	const_iv (FITRIM)
		1156	const_iv (FICLONE)
		1157	const_iv (FICLONERANGE)
		1158	const_iv (FIDEDUPERANGE)
		1159
		1160	const_iv (FS_IOC_GETFLAGS)
		1161	const_iv (FS_IOC_SETFLAGS)
		1162	const_iv (FS_IOC_GETVERSION)
		1163	const_iv (FS_IOC_SETVERSION)
		1164	const_iv (FS_IOC_FIEMAP)
		1165	const_iv (FS_IOC_FSGETXATTR)
		1166	const_iv (FS_IOC_FSSETXATTR)
		1167	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1168	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1169	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1170
		1171	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1172
		1173	const_iv (FS_SECRM_FL)
		1174	const_iv (FS_UNRM_FL)
		1175	const_iv (FS_COMPR_FL)
		1176	const_iv (FS_SYNC_FL)
		1177	const_iv (FS_IMMUTABLE_FL)
		1178	const_iv (FS_APPEND_FL)
		1179	const_iv (FS_NODUMP_FL)
		1180	const_iv (FS_NOATIME_FL)
		1181	const_iv (FS_DIRTY_FL)
		1182	const_iv (FS_COMPRBLK_FL)
		1183	const_iv (FS_NOCOMP_FL)
		1184	const_iv (FS_ENCRYPT_FL)
		1185	const_iv (FS_BTREE_FL)
		1186	const_iv (FS_INDEX_FL)
		1187	const_iv (FS_JOURNAL_DATA_FL)
		1188	const_iv (FS_NOTAIL_FL)
		1189	const_iv (FS_DIRSYNC_FL)
		1190	const_iv (FS_TOPDIR_FL)
		1191	const_iv (FS_FL_USER_MODIFIABLE)
		1192
		1193	const_iv (FS_XFLAG_REALTIME)
		1194	const_iv (FS_XFLAG_PREALLOC)
		1195	const_iv (FS_XFLAG_IMMUTABLE)
		1196	const_iv (FS_XFLAG_APPEND)
		1197	const_iv (FS_XFLAG_SYNC)
		1198	const_iv (FS_XFLAG_NOATIME)
		1199	const_iv (FS_XFLAG_NODUMP)
		1200	const_iv (FS_XFLAG_RTINHERIT)
		1201	const_iv (FS_XFLAG_PROJINHERIT)
		1202	const_iv (FS_XFLAG_NOSYMLINKS)
		1203	const_iv (FS_XFLAG_EXTSIZE)
		1204	const_iv (FS_XFLAG_EXTSZINHERIT)
		1205	const_iv (FS_XFLAG_NODEFRAG)
		1206	const_iv (FS_XFLAG_FILESTREAM)
		1207	const_iv (FS_XFLAG_DAX)
		1208	const_iv (FS_XFLAG_HASATTR)
		1209
		1210	const_iv (FIEMAP_FLAG_SYNC)
		1211	const_iv (FIEMAP_FLAG_XATTR)
		1212	const_iv (FIEMAP_FLAGS_COMPAT)
		1213	const_iv (FIEMAP_EXTENT_LAST)
		1214	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1215	const_iv (FIEMAP_EXTENT_DELALLOC)
		1216	const_iv (FIEMAP_EXTENT_ENCODED)
		1217	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1218	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1219	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1220	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1221	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1222	const_iv (FIEMAP_EXTENT_MERGED)
		1223	const_iv (FIEMAP_EXTENT_SHARED)
		1224
		1225	const_iv (SPLICE_F_MOVE)
		1226	const_iv (SPLICE_F_NONBLOCK)
		1227	const_iv (SPLICE_F_MORE)
		1228	const_iv (SPLICE_F_GIFT)
		1229
		1230	const_iv (EFD_CLOEXEC)
		1231	const_iv (EFD_NONBLOCK)
		1232	const_iv (EFD_SEMAPHORE)
		1233
		1234	const_iv (CLOCK_REALTIME)
		1235	const_iv (CLOCK_MONOTONIC)
		1236	const_iv (CLOCK_BOOTTIME)
		1237	const_iv (CLOCK_REALTIME_ALARM)
		1238	const_iv (CLOCK_BOOTTIME_ALARM)
		1239
		1240	const_iv (TFD_NONBLOCK)
		1241	const_iv (TFD_CLOEXEC)
		1242
		1243	const_iv (TFD_TIMER_ABSTIME)
		1244	const_iv (TFD_TIMER_CANCEL_ON_SET)
		1245
		1246	/* these are libeio constants, and are independent of gendef0 */
		1247	const_eio (SEEK_SET)
		1248	const_eio (SEEK_CUR)
		1249	const_eio (SEEK_END)
775		1250
776	const_eio (MCL_FUTURE)	1251	const_eio (MCL_FUTURE)
777	const_eio (MCL_CURRENT)	1252	const_eio (MCL_CURRENT)
778		1253
779	const_eio (MS_ASYNC)	1254	const_eio (MS_ASYNC)
…		…
783	const_eio (MT_MODIFY)	1258	const_eio (MT_MODIFY)
784		1259
785	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1260	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
786	const_eio (SYNC_FILE_RANGE_WRITE)	1261	const_eio (SYNC_FILE_RANGE_WRITE)
787	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1262	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1263
		1264	const_eio (FALLOC_FL_KEEP_SIZE)
		1265	const_eio (FALLOC_FL_PUNCH_HOLE)
		1266	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1267	const_eio (FALLOC_FL_ZERO_RANGE)
		1268	const_eio (FALLOC_FL_INSERT_RANGE)
		1269	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1270
		1271	const_eio (RENAME_NOREPLACE)
		1272	const_eio (RENAME_EXCHANGE)
		1273	const_eio (RENAME_WHITEOUT)
788		1274
789	const_eio (READDIR_DENTS)	1275	const_eio (READDIR_DENTS)
790	const_eio (READDIR_DIRS_FIRST)	1276	const_eio (READDIR_DIRS_FIRST)
791	const_eio (READDIR_STAT_ORDER)	1277	const_eio (READDIR_STAT_ORDER)
792	const_eio (READDIR_FOUND_UNKNOWN)	1278	const_eio (READDIR_FOUND_UNKNOWN)
…		…
803	};	1289	};
804		1290
805	aio_stash = gv_stashpv ("IO::AIO" , 1);	1291	aio_stash = gv_stashpv ("IO::AIO" , 1);
806	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1292	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
807	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1293	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1294	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
808		1295
809	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1296	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
810	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1297	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
811		1298
812	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1299	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
813		1300
814	create_respipe ();	1301	reinit ();
815
816	if (eio_init (want_poll, done_poll) < 0)
817	croak ("IO::AIO: unable to initialise eio library");
818
819	/* atfork child called in fifo order, so before eio's handler */
820	X_THREAD_ATFORK (0, 0, atfork_child);
821	}	1302	}
822		1303
823	void	1304	void
		1305	reinit ()
		1306	PROTOTYPE:
		1307
		1308	void
824	max_poll_reqs (int nreqs)	1309	max_poll_reqs (unsigned int nreqs)
825	PROTOTYPE: $	1310	PROTOTYPE: $
826	CODE:	1311	CODE:
827	eio_set_max_poll_reqs (nreqs);	1312	eio_set_max_poll_reqs (nreqs);
828		1313
829	void	1314	void
…		…
831	PROTOTYPE: $	1316	PROTOTYPE: $
832	CODE:	1317	CODE:
833	eio_set_max_poll_time (nseconds);	1318	eio_set_max_poll_time (nseconds);
834		1319
835	void	1320	void
836	min_parallel (int nthreads)	1321	min_parallel (unsigned int nthreads)
837	PROTOTYPE: $	1322	PROTOTYPE: $
838	CODE:	1323	CODE:
839	eio_set_min_parallel (nthreads);	1324	eio_set_min_parallel (nthreads);
840		1325
841	void	1326	void
842	max_parallel (int nthreads)	1327	max_parallel (unsigned int nthreads)
843	PROTOTYPE: $	1328	PROTOTYPE: $
844	CODE:	1329	CODE:
845	eio_set_max_parallel (nthreads);	1330	eio_set_max_parallel (nthreads);
846		1331
847	void	1332	void
848	max_idle (int nthreads)	1333	max_idle (unsigned int nthreads)
849	PROTOTYPE: $	1334	PROTOTYPE: $
850	CODE:	1335	CODE:
851	eio_set_max_idle (nthreads);	1336	eio_set_max_idle (nthreads);
852		1337
853	void	1338	void
		1339	idle_timeout (unsigned int seconds)
		1340	PROTOTYPE: $
		1341	CODE:
		1342	eio_set_idle_timeout (seconds);
		1343
		1344	void
854	max_outstanding (int maxreqs)	1345	max_outstanding (unsigned int maxreqs)
855	PROTOTYPE: $	1346	PROTOTYPE: $
856	CODE:	1347	CODE:
857	max_outstanding = maxreqs;	1348	max_outstanding = maxreqs;
858		1349
859	void	1350	void
860	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1351	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
861	PPCODE:	1352	PPCODE:
862	{	1353	{
863	dREQ;	1354	dREQ;
864		1355
		1356	req->type = EIO_WD_OPEN;
		1357	req_set_path1 (req, pathname);
		1358
		1359	REQ_SEND;
		1360	}
		1361
		1362	void
		1363	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1364	PPCODE:
		1365	{
		1366	dREQ;
		1367
865	req->type = EIO_OPEN;	1368	req->type = EIO_OPEN;
866	req->sv1 = newSVsv (pathname);	1369	req_set_path1 (req, pathname);
867	req->ptr1 = SvPVbyte_nolen (req->sv1);
868	req->int1 = flags;	1370	req->int1 = flags;
869	req->int2 = mode;	1371	req->int2 = mode;
870		1372
871	REQ_SEND;	1373	REQ_SEND;
872	}	1374	}
873		1375
874	void	1376	void
875	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1377	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
876	ALIAS:	1378	ALIAS:
877	aio_fsync = EIO_FSYNC	1379	aio_fsync = EIO_FSYNC
878	aio_fdatasync = EIO_FDATASYNC	1380	aio_fdatasync = EIO_FDATASYNC
		1381	aio_syncfs = EIO_SYNCFS
879	PPCODE:	1382	PPCODE:
880	{	1383	{
881	int fd = s_fileno_croak (fh, 0);	1384	int fd = s_fileno_croak (fh, 0);
882	dREQ;	1385	dREQ;
883		1386
884	req->type = ix;	1387	req->type = ix;
885	req->sv1 = newSVsv (fh);	1388	req->sv1 = newSVsv (fh);
886	req->int1 = fd;	1389	req->int1 = fd;
887		1390
888	REQ_SEND (req);	1391	REQ_SEND;
889	}	1392	}
890		1393
891	void	1394	void
892	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1395	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
893	PPCODE:	1396	PPCODE:
894	{	1397	{
895	int fd = s_fileno_croak (fh, 0);	1398	int fd = s_fileno_croak (fh, 0);
896	dREQ;	1399	dREQ;
897		1400
898	req->type = EIO_SYNC_FILE_RANGE;	1401	req->type = EIO_SYNC_FILE_RANGE;
899	req->sv1 = newSVsv (fh);	1402	req->sv1 = newSVsv (fh);
900	req->int1 = fd;	1403	req->int1 = fd;
901	req->offs = offset;	1404	req->offs = offset;
902	req->size = nbytes;	1405	req->size = nbytes;
903	req->int2 = flags;	1406	req->int2 = flags;
904		1407
905	REQ_SEND (req);	1408	REQ_SEND;
906	}	1409	}
907		1410
908	void	1411	void
909	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1412	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
910	PPCODE:	1413	PPCODE:
911	{	1414	{
912	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
913	int fd = s_fileno_croak (fh, 0);	1415	int fd = s_fileno_croak (fh, 0);
914	dREQ;	1416	dREQ;
915		1417
916	if (close_pipe < 0)	1418	req->type = EIO_FALLOCATE;
		1419	req->sv1 = newSVsv (fh);
		1420	req->int1 = fd;
		1421	req->int2 = mode;
		1422	req->offs = offset;
		1423	req->size = len;
		1424
		1425	REQ_SEND;
		1426	}
		1427
		1428	void
		1429	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1430	PPCODE:
		1431	{
		1432	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1433	int fd = s_fileno_croak (fh, 0);
		1434	dREQ;
		1435
		1436	if (expect_false (close_fd < 0))
917	{	1437	{
918	int pipefd [2];	1438	int pipefd [2];
919		1439
		1440	if (
		1441	#ifdef _WIN32
		1442	_pipe (pipefd, 1, _O_BINARY) < 0
		1443	#else
920	if (pipe (pipefd) < 0	1444	pipe (pipefd) < 0
921	|| close (pipefd [1]) < 0
922	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1445	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1446	#endif
		1447	|| close (pipefd [1]) < 0
		1448	)
923	abort (); /*D*/	1449	abort (); /*D*/
924		1450
925	close_pipe = pipefd [0];	1451	close_fd = pipefd [0];
926	}	1452	}
927		1453
928	req->type = EIO_DUP2;	1454	req->type = EIO_DUP2;
929	req->int1 = close_pipe;	1455	req->int1 = close_fd;
930	req->sv2 = newSVsv (fh);	1456	req->sv2 = newSVsv (fh);
931	req->int2 = fd;	1457	req->int2 = fd;
932		1458
933	REQ_SEND (req);	1459	REQ_SEND;
934	}	1460	}
935		1461
936	void	1462	void
		1463	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1464	PPCODE:
		1465	{
		1466	int fd = s_fileno_croak (fh, 0);
		1467	dREQ;
		1468
		1469	req->type = EIO_SEEK;
		1470	req->sv1 = newSVsv (fh);
		1471	req->int1 = fd;
		1472	req->offs = SvVAL64 (offset);
		1473	req->int2 = whence;
		1474
		1475	REQ_SEND;
		1476	}
		1477
		1478	void
937	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1479	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
938	ALIAS:	1480	ALIAS:
939	aio_read = EIO_READ	1481	aio_read = EIO_READ
940	aio_write = EIO_WRITE	1482	aio_write = EIO_WRITE
941	PPCODE:	1483	PPCODE:
942	{	1484	{
…		…
958	len = svlen - dataoffset;	1500	len = svlen - dataoffset;
959	}	1501	}
960	else	1502	else
961	{	1503	{
962	/* read: check type and grow scalar as necessary */	1504	/* read: check type and grow scalar as necessary */
963	SvUPGRADE (data, SVt_PV);	1505	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
964	svptr = SvGROW (data, len + dataoffset + 1);	1506	svptr = sv_grow (data, len + dataoffset + 1);
		1507	else if (SvCUR (data) < len + dataoffset)
		1508	croak ("length + dataoffset outside of scalar, and cannot grow");
965	}	1509	}
966		1510
967	{	1511	{
968	dREQ;	1512	dREQ;
969		1513
…		…
985	REQ_SEND;	1529	REQ_SEND;
986	}	1530	}
987	}	1531	}
988		1532
989	void	1533	void
990	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1534	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
		1535	ALIAS:
		1536	aio_ioctl = EIO_IOCTL
		1537	aio_fcntl = EIO_FCNTL
991	PPCODE:	1538	PPCODE:
992	{	1539	{
993	SV *data;	1540	int fd = s_fileno_croak (fh, 0);
		1541	char *svptr;
		1542
		1543	if (SvPOK (arg) || !SvNIOK (arg))
		1544	{
		1545	STRLEN svlen;
		1546	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1547	#ifdef IOCPARM_LEN
		1548	STRLEN need = IOCPARM_LEN (request);
		1549	#else
		1550	STRLEN need = 256;
		1551	#endif
		1552
		1553	if (svlen < need)
		1554	svptr = SvGROW (arg, need);
		1555	}
		1556	else
		1557	svptr = (char *)SvIV (arg);
		1558
		1559	{
		1560	dREQ;
		1561
		1562	req->type = ix;
		1563	req->sv1 = newSVsv (fh);
		1564	req->int1 = fd;
		1565	req->int2 = (long)request;
		1566	req->sv2 = SvREFCNT_inc (arg);
		1567	req->ptr2 = svptr;
		1568
		1569	REQ_SEND;
		1570	}
		1571	}
		1572
		1573	void
		1574	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1575	ALIAS:
		1576	aio_readlink = EIO_READLINK
		1577	aio_realpath = EIO_REALPATH
		1578	PPCODE:
		1579	{
994	dREQ;	1580	dREQ;
995		1581
996	req->type = EIO_READLINK;	1582	req->type = ix;
997	req->sv1 = newSVsv (path);	1583	req_set_path1 (req, pathname);
998	req->ptr1 = SvPVbyte_nolen (req->sv1);
999		1584
1000	REQ_SEND;	1585	REQ_SEND;
1001	}	1586	}
1002		1587
1003	void	1588	void
1004	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1589	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
1005	PPCODE:	1590	PPCODE:
1006	{	1591	{
1007	int ifd = s_fileno_croak (in_fh , 0);	1592	int ifd = s_fileno_croak (in_fh , 0);
1008	int ofd = s_fileno_croak (out_fh, 1);	1593	int ofd = s_fileno_croak (out_fh, 1);
1009	dREQ;	1594	dREQ;
1010		1595
1011	req->type = EIO_SENDFILE;	1596	req->type = EIO_SENDFILE;
1012	req->sv1 = newSVsv (out_fh);	1597	req->sv1 = newSVsv (out_fh);
1013	req->int1 = ofd;	1598	req->int1 = ofd;
…		…
1018		1603
1019	REQ_SEND;	1604	REQ_SEND;
1020	}	1605	}
1021		1606
1022	void	1607	void
1023	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1608	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
1024	PPCODE:	1609	PPCODE:
1025	{	1610	{
1026	int fd = s_fileno_croak (fh, 0);	1611	int fd = s_fileno_croak (fh, 0);
1027	dREQ;	1612	dREQ;
1028		1613
1029	req->type = EIO_READAHEAD;	1614	req->type = EIO_READAHEAD;
1030	req->sv1 = newSVsv (fh);	1615	req->sv1 = newSVsv (fh);
1031	req->int1 = fd;	1616	req->int1 = fd;
…		…
1034		1619
1035	REQ_SEND;	1620	REQ_SEND;
1036	}	1621	}
1037		1622
1038	void	1623	void
1039	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1624	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
1040	ALIAS:	1625	ALIAS:
1041	aio_stat = EIO_STAT	1626	aio_stat = EIO_STAT
1042	aio_lstat = EIO_LSTAT	1627	aio_lstat = EIO_LSTAT
1043	aio_statvfs = EIO_STATVFS	1628	aio_statvfs = EIO_STATVFS
1044	PPCODE:	1629	PPCODE:
1045	{	1630	{
1046	dREQ;	1631	dREQ;
1047		1632
1048	req->sv1 = newSVsv (fh_or_path);	1633	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
1049
1050	if (SvPOK (req->sv1))
1051	{
1052	req->type = ix;
1053	req->ptr1 = SvPVbyte_nolen (req->sv1);
1054	}
1055	else
1056	{
1057	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1058	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1059	}
1060		1634
1061	REQ_SEND;	1635	REQ_SEND;
1062	}	1636	}
1063		1637
1064	void	1638	void
		1639	st_xtime ()
		1640	ALIAS:
		1641	st_atime = 1
		1642	st_mtime = 2
		1643	st_ctime = 4
		1644	st_xtime = 7
		1645	PPCODE:
		1646	EXTEND (SP, 3);
		1647	if (ix & 1) PUSHs (newSVnv (PL_statcache.st_atime + 1e-9 * ATIMENSEC));
		1648	if (ix & 2) PUSHs (newSVnv (PL_statcache.st_mtime + 1e-9 * MTIMENSEC));
		1649	if (ix & 4) PUSHs (newSVnv (PL_statcache.st_ctime + 1e-9 * CTIMENSEC));
		1650
		1651	void
		1652	st_xtimensec ()
		1653	ALIAS:
		1654	st_atimensec = 1
		1655	st_mtimensec = 2
		1656	st_ctimensec = 4
		1657	st_xtimensec = 7
		1658	PPCODE:
		1659	EXTEND (SP, 3);
		1660	if (ix & 1) PUSHs (newSViv (ATIMENSEC));
		1661	if (ix & 2) PUSHs (newSViv (MTIMENSEC));
		1662	if (ix & 4) PUSHs (newSViv (CTIMENSEC));
		1663
		1664	UV
		1665	major (UV dev)
		1666	ALIAS:
		1667	minor = 1
		1668	CODE:
		1669	RETVAL = ix ? minor (dev) : major (dev);
		1670	OUTPUT:
		1671	RETVAL
		1672
		1673	UV
		1674	makedev (UV maj, UV min)
		1675	CODE:
		1676	RETVAL = makedev (maj, min);
		1677	OUTPUT:
		1678	RETVAL
		1679
		1680	void
1065	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1681	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1066	PPCODE:	1682	PPCODE:
1067	{	1683	{
1068	dREQ;	1684	dREQ;
1069		1685
1070	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1686	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1071	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1687	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1072	req->sv1 = newSVsv (fh_or_path);	1688	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1073
1074	if (SvPOK (req->sv1))
1075	{
1076	req->type = EIO_UTIME;
1077	req->ptr1 = SvPVbyte_nolen (req->sv1);
1078	}
1079	else
1080	{
1081	req->type = EIO_FUTIME;
1082	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1083	}
1084		1689
1085	REQ_SEND;	1690	REQ_SEND;
1086	}	1691	}
1087		1692
1088	void	1693	void
1089	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1694	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1090	PPCODE:	1695	PPCODE:
1091	{	1696	{
1092	dREQ;	1697	dREQ;
1093		1698
1094	req->sv1 = newSVsv (fh_or_path);
1095	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1699	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1096		1700	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1097	if (SvPOK (req->sv1))
1098	{
1099	req->type = EIO_TRUNCATE;
1100	req->ptr1 = SvPVbyte_nolen (req->sv1);
1101	}
1102	else
1103	{
1104	req->type = EIO_FTRUNCATE;
1105	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1106	}
1107		1701
1108	REQ_SEND;	1702	REQ_SEND;
1109	}	1703	}
1110		1704
1111	void	1705	void
1112	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1706	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1113	ALIAS:
1114	aio_chmod = EIO_CHMOD
1115	aio_mkdir = EIO_MKDIR
1116	PPCODE:	1707	PPCODE:
1117	{	1708	{
1118	dREQ;	1709	dREQ;
1119		1710
1120	req->int2 = mode;	1711	req->int2 = mode;
1121	req->sv1 = newSVsv (fh_or_path);	1712	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1122
1123	if (SvPOK (req->sv1))
1124	{
1125	req->type = ix;
1126	req->ptr1 = SvPVbyte_nolen (req->sv1);
1127	}
1128	else
1129	{
1130	req->type = EIO_FCHMOD;
1131	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1132	}
1133		1713
1134	REQ_SEND;	1714	REQ_SEND;
1135	}	1715	}
1136		1716
1137	void	1717	void
1138	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1718	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1139	PPCODE:	1719	PPCODE:
1140	{	1720	{
1141	dREQ;	1721	dREQ;
1142		1722
1143	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1723	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1144	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1724	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1145	req->sv1 = newSVsv (fh_or_path);	1725	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1146
1147	if (SvPOK (req->sv1))
1148	{
1149	req->type = EIO_CHOWN;
1150	req->ptr1 = SvPVbyte_nolen (req->sv1);
1151	}
1152	else
1153	{
1154	req->type = EIO_FCHOWN;
1155	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1156	}
1157		1726
1158	REQ_SEND;	1727	REQ_SEND;
1159	}	1728	}
1160		1729
1161	void	1730	void
1162	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1731	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1163	PPCODE:	1732	PPCODE:
1164	{	1733	{
1165	dREQ;	1734	dREQ;
1166		1735
1167	req->type = EIO_READDIR;	1736	req->type = EIO_READDIR;
1168	req->sv1 = newSVsv (pathname);
1169	req->ptr1 = SvPVbyte_nolen (req->sv1);
1170	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1737	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1171		1738
1172	if (flags & EIO_READDIR_DENTS)	1739	if (flags & EIO_READDIR_DENTS)
1173	req->int1 |= EIO_READDIR_CUSTOM2;	1740	req->int1 |= EIO_READDIR_CUSTOM2;
1174		1741
		1742	req_set_path1 (req, pathname);
		1743
1175	REQ_SEND;	1744	REQ_SEND;
1176	}	1745	}
1177		1746
1178	void	1747	void
		1748	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1749	PPCODE:
		1750	{
		1751	dREQ;
		1752
		1753	req->type = EIO_MKDIR;
		1754	req->int2 = mode;
		1755	req_set_path1 (req, pathname);
		1756
		1757	REQ_SEND;
		1758	}
		1759
		1760	void
1179	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1761	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1180	ALIAS:	1762	ALIAS:
1181	aio_unlink = EIO_UNLINK	1763	aio_unlink = EIO_UNLINK
1182	aio_rmdir = EIO_RMDIR	1764	aio_rmdir = EIO_RMDIR
1183	aio_readdir = EIO_READDIR	1765	aio_readdir = EIO_READDIR
1184	PPCODE:	1766	PPCODE:
1185	{	1767	{
1186	dREQ;	1768	dREQ;
1187		1769
1188	req->type = ix;	1770	req->type = ix;
1189	req->sv1 = newSVsv (pathname);	1771	req_set_path1 (req, pathname);
1190	req->ptr1 = SvPVbyte_nolen (req->sv1);
1191		1772
1192	REQ_SEND;	1773	REQ_SEND;
1193	}	1774	}
1194		1775
1195	void	1776	void
1196	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1777	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1197	ALIAS:	1778	ALIAS:
1198	aio_link = EIO_LINK	1779	aio_link = EIO_LINK
1199	aio_symlink = EIO_SYMLINK	1780	aio_symlink = EIO_SYMLINK
1200	aio_rename = EIO_RENAME	1781	aio_rename = EIO_RENAME
1201	PPCODE:	1782	PPCODE:
1202	{	1783	{
		1784	eio_wd wd2 = 0;
1203	dREQ;	1785	dREQ;
1204		1786
1205	req->type = ix;	1787	req->type = ix;
1206	req->sv1 = newSVsv (oldpath);	1788	req_set_path1 (req, oldpath);
1207	req->ptr1 = SvPVbyte_nolen (req->sv1);	1789	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1208	req->sv2 = newSVsv (newpath);	1790	req->int3 = (long)wd2;
1209	req->ptr2 = SvPVbyte_nolen (req->sv2);
1210		1791
1211	REQ_SEND;	1792	REQ_SEND;
1212	}	1793	}
1213		1794
1214	void	1795	void
		1796	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1797	PPCODE:
		1798	{
		1799	eio_wd wd2 = 0;
		1800	dREQ;
		1801
		1802	req->type = EIO_RENAME;
		1803	req_set_path1 (req, oldpath);
		1804	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1805	req->int2 = flags;
		1806	req->int3 = (long)wd2;
		1807
		1808	REQ_SEND;
		1809	}
		1810
		1811	void
1215	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1812	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1216	PPCODE:	1813	PPCODE:
1217	{	1814	{
1218	dREQ;	1815	dREQ;
1219		1816
1220	req->type = EIO_MKNOD;	1817	req->type = EIO_MKNOD;
1221	req->sv1 = newSVsv (pathname);
1222	req->ptr1 = SvPVbyte_nolen (req->sv1);
1223	req->int2 = (mode_t)mode;	1818	req->int2 = (mode_t)mode;
1224	req->offs = dev;	1819	req->offs = dev;
		1820	req_set_path1 (req, pathname);
1225		1821
1226	REQ_SEND;	1822	REQ_SEND;
1227	}	1823	}
1228		1824
1229	void	1825	void
1230	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1826	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1231	ALIAS:	1827	ALIAS:
1232	aio_mtouch = EIO_MTOUCH	1828	aio_mtouch = EIO_MTOUCH
1233	aio_msync = EIO_MSYNC	1829	aio_msync = EIO_MSYNC
1234	PPCODE:	1830	PPCODE:
1235	{	1831	{
1236	STRLEN svlen;	1832	STRLEN svlen;
1237	char *svptr = SvPVbyte (data, svlen);	1833	char *svptr = SvPVbyte (data, svlen);
1238	UV len = SvUV (length);	1834	UV len = SvUV (length);
		1835
		1836	if (flags < 0)
		1837	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1239		1838
1240	if (offset < 0)	1839	if (offset < 0)
1241	offset += svlen;	1840	offset += svlen;
1242		1841
1243	if (offset < 0 || offset > svlen)	1842	if (offset < 0 || offset > svlen)
…		…
1258	REQ_SEND;	1857	REQ_SEND;
1259	}	1858	}
1260	}	1859	}
1261		1860
1262	void	1861	void
1263	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)	1862	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
1264	PPCODE:	1863	PPCODE:
1265	{	1864	{
1266	STRLEN svlen;	1865	STRLEN svlen;
1267	char *svptr = SvPVbyte (data, svlen);	1866	char *svptr = SvPVbyte (data, svlen);
1268	UV len = SvUV (length);	1867	UV len = SvUV (length);
…		…
1287	REQ_SEND;	1886	REQ_SEND;
1288	}	1887	}
1289	}	1888	}
1290		1889
1291	void	1890	void
1292	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)	1891	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
1293	PPCODE:	1892	PPCODE:
1294	{	1893	{
1295	dREQ;	1894	dREQ;
1296		1895
1297	req->type = EIO_MLOCKALL;	1896	req->type = EIO_MLOCKALL;
…		…
1299		1898
1300	REQ_SEND;	1899	REQ_SEND;
1301	}	1900	}
1302		1901
1303	void	1902	void
		1903	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1904	PPCODE:
		1905	{
		1906	int fd = s_fileno_croak (fh, 0);
		1907	dREQ;
		1908
		1909	req->type = EIO_CUSTOM;
		1910	req->sv1 = newSVsv (fh);
		1911	req->int1 = fd;
		1912
		1913	req->feed = fiemap;
		1914	#if HAVE_FIEMAP
		1915	/* keep our fingers crossed that the next two types are 64 bit */
		1916	req->offs = start;
		1917	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1918	req->int2 = flags;
		1919	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1920	#endif
		1921
		1922	REQ_SEND;
		1923	}
		1924
		1925	void
		1926	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1927	PPCODE:
		1928	{
		1929	char *svptr = 0;
		1930
		1931	sv_clear_foreign (data);
		1932
		1933	if (length) /* known length, directly read into scalar */
		1934	{
		1935	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1936	svptr = sv_grow (data, length + 1);
		1937	else if (SvCUR (data) < length)
		1938	croak ("length outside of scalar, and cannot grow");
		1939	else
		1940	svptr = SvPVbyte_nolen (data);
		1941	}
		1942
		1943	{
		1944	dREQ;
		1945
		1946	req->type = EIO_SLURP;
		1947	req_set_path1 (req, pathname);
		1948	req->offs = offset;
		1949	req->size = length;
		1950	req->sv2 = SvREFCNT_inc (data);
		1951	req->ptr2 = svptr;
		1952
		1953	if (!SvREADONLY (data))
		1954	{
		1955	SvREADONLY_on (data);
		1956	req->flags |= FLAG_SV2_RO_OFF;
		1957	}
		1958
		1959	REQ_SEND;
		1960	}
		1961	}
		1962
		1963	void
1304	aio_busy (double delay, SV *callback=&PL_sv_undef)	1964	aio_busy (double delay, SV *callback = &PL_sv_undef)
1305	PPCODE:	1965	PPCODE:
1306	{	1966	{
1307	dREQ;	1967	dREQ;
1308		1968
1309	req->type = EIO_BUSY;	1969	req->type = EIO_BUSY;
…		…
1311		1971
1312	REQ_SEND;	1972	REQ_SEND;
1313	}	1973	}
1314		1974
1315	void	1975	void
1316	aio_group (SV *callback=&PL_sv_undef)	1976	aio_group (SV *callback = &PL_sv_undef)
1317	PPCODE:	1977	PPCODE:
1318	{	1978	{
1319	dREQ;	1979	dREQ;
1320		1980
1321	req->type = EIO_GROUP;	1981	req->type = EIO_GROUP;
1322		1982
		1983	PUTBACK;
1323	req_submit (req);	1984	req_submit (req);
		1985	SPAGAIN;
		1986
1324	XPUSHs (req_sv (req, aio_grp_stash));	1987	XPUSHs (req_sv (req, aio_grp_stash));
1325	}	1988	}
1326		1989
1327	void	1990	void
1328	aio_nop (SV *callback=&PL_sv_undef)	1991	aio_nop (SV *callback = &PL_sv_undef)
1329	ALIAS:	1992	ALIAS:
1330	aio_nop = EIO_NOP	1993	aio_nop = EIO_NOP
1331	aio_sync = EIO_SYNC	1994	aio_sync = EIO_SYNC
1332	PPCODE:	1995	PPCODE:
1333	{	1996	{
…		…
1337		2000
1338	REQ_SEND;	2001	REQ_SEND;
1339	}	2002	}
1340		2003
1341	int	2004	int
1342	aioreq_pri (int pri = 0)	2005	aioreq_pri (int pri = NO_INIT)
1343	CODE:	2006	CODE:
1344	RETVAL = next_pri;	2007	RETVAL = next_pri;
1345	if (items > 0)	2008	if (items > 0)
1346	{	2009	{
1347	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	2010	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1429	CODE:	2092	CODE:
1430	RETVAL = posix_fadvise (fh, offset, length, advice);	2093	RETVAL = posix_fadvise (fh, offset, length, advice);
1431	OUTPUT:	2094	OUTPUT:
1432	RETVAL	2095	RETVAL
1433		2096
1434	ssize_t	2097	IV
1435	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	2098	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1436	CODE:	2099	CODE:
1437	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	2100	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1438	OUTPUT:	2101	OUTPUT:
1439	RETVAL	2102	RETVAL
1440		2103
1441	void	2104	void
1442	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	2105	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1443	PPCODE:	2106	PPCODE:
1444	sv_unmagic (scalar, MMAP_MAGIC);	2107	sv_clear_foreign (scalar);
1445	{	2108	{
1446	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	2109	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1447	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	2110	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1448	if (addr == (void *)-1)	2111	if (addr == (void *)-1)
1449	XSRETURN_NO;	2112	XSRETURN_NO;
1450		2113
1451	sv_force_normal (scalar);	2114	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1452
1453	/* we store the length in mg_obj, as namlen is I32 :/ */
1454	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1455	->mg_obj = (SV *)length;
1456
1457	SvUPGRADE (scalar, SVt_PV); /* nop... */
1458		2115
1459	if (!(prot & PROT_WRITE))	2116	if (!(prot & PROT_WRITE))
1460	SvREADONLY_on (scalar);	2117	SvREADONLY_on (scalar);
1461		2118
1462	if (SvLEN (scalar))
1463	Safefree (SvPVX (scalar));
1464
1465	SvPVX (scalar) = (char *)addr;
1466	SvCUR_set (scalar, length);
1467	SvLEN_set (scalar, 0);
1468	SvPOK_only (scalar);
1469
1470	XSRETURN_YES;	2119	XSRETURN_YES;
1471	}	2120	}
1472		2121
1473	void	2122	void
1474	munmap (SV *scalar)	2123	munmap (SV *scalar)
1475	CODE:	2124	CODE:
1476	sv_unmagic (scalar, MMAP_MAGIC);	2125	sv_clear_foreign (scalar);
		2126
		2127	SV *
		2128	mremap (SV *scalar, STRLEN new_length, int flags = MREMAP_MAYMOVE, IV new_address = 0)
		2129	CODE:
		2130	{
		2131	MAGIC *mg = mg_findext (scalar, FOREIGN_MAGIC, &mmap_vtbl);
		2132	void *new;
		2133
		2134	if (!mg || SvPVX (scalar) != mg->mg_ptr)
		2135	croak ("IO::AIO::mremap: scalar not mapped by IO::AIO::mmap or improperly modified");
		2136
		2137	new = mremap (mg->mg_ptr, (size_t)mg->mg_obj, new_length, flags, (void *)new_address);
		2138
		2139	RETVAL = &PL_sv_no;
		2140
		2141	if (new != (void *)-1)
		2142	{
		2143	RETVAL = new == (void *)mg->mg_ptr
		2144	? newSVpvn ("0 but true", 10)
		2145	: &PL_sv_yes;
		2146
		2147	mg->mg_ptr = (char *)new;
		2148	mg->mg_obj = (SV *)new_length;
		2149
		2150	SvPVX (scalar) = mg->mg_ptr;
		2151	SvCUR_set (scalar, new_length);
		2152	}
		2153	}
		2154	OUTPUT:
		2155	RETVAL
1477		2156
1478	int	2157	int
1479	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)	2158	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1480	ALIAS:	2159	ALIAS:
1481	mprotect = 1	2160	mprotect = 1
1482	CODE:	2161	CODE:
1483	{	2162	{
1484	STRLEN svlen;	2163	STRLEN svlen;
1485	void *addr = SvPVbyte (scalar, svlen);	2164	void *addr = SvPVbyte (scalar, svlen);
1486	size_t len = SvUV (length);	2165	STRLEN len = SvUV (length);
1487		2166
1488	if (offset < 0)	2167	if (offset < 0)
1489	offset += svlen;	2168	offset += svlen;
1490		2169
1491	if (offset < 0 || offset > svlen)	2170	if (offset < 0 || offset > svlen)
…		…
1505	}	2184	}
1506	OUTPUT:	2185	OUTPUT:
1507	RETVAL	2186	RETVAL
1508		2187
1509	int	2188	int
1510	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)	2189	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
1511	CODE:	2190	CODE:
1512	{	2191	{
1513	STRLEN svlen;	2192	STRLEN svlen;
1514	void *addr = SvPVbyte (scalar, svlen);	2193	void *addr = SvPVbyte (scalar, svlen);
1515	size_t len = SvUV (length);	2194	size_t len = SvUV (length);
1516		2195
1517	if (offset < 0)	2196	if (offset < 0)
1518	offset += svlen;	2197	offset += svlen;
1519		2198
…		…
1523	if (!SvOK (length) || len + offset > svlen)	2202	if (!SvOK (length) || len + offset > svlen)
1524	len = svlen - offset;	2203	len = svlen - offset;
1525		2204
1526	addr = (void *)(((intptr_t)addr) + offset);	2205	addr = (void *)(((intptr_t)addr) + offset);
1527	eio_page_align (&addr, &len);	2206	eio_page_align (&addr, &len);
1528	#if _POSIX_MEMLOCK	2207	#if _POSIX_MEMLOCK_RANGE
1529	RETVAL = munlock (addr, len);	2208	RETVAL = munlock (addr, len);
1530	#else	2209	#else
1531	RETVAL = ((errno = ENOSYS), -1);	2210	RETVAL = EIO_ENOSYS ();
1532	#endif	2211	#endif
1533	}	2212	}
1534	OUTPUT:	2213	OUTPUT:
1535	RETVAL	2214	RETVAL
1536		2215
…		…
1538	munlockall ()	2217	munlockall ()
1539	CODE:	2218	CODE:
1540	#if _POSIX_MEMLOCK	2219	#if _POSIX_MEMLOCK
1541	munlockall ();	2220	munlockall ();
1542	#else	2221	#else
1543	RETVAL = -1;	2222	RETVAL = EIO_ENOSYS ();
1544	errno = ENOSYS;
1545	#endif	2223	#endif
1546	OUTPUT:	2224	OUTPUT:
1547	RETVAL	2225	RETVAL
		2226
		2227	int
		2228	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2229	CODE:
		2230	{
		2231	#if HAVE_LINUX_SPLICE
		2232	loff_t off_in_, off_out_;
		2233	RETVAL = splice (
		2234	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2235	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2236	length, flags
		2237	);
		2238	#else
		2239	RETVAL = EIO_ENOSYS ();
		2240	#endif
		2241	}
		2242	OUTPUT:
		2243	RETVAL
		2244
		2245	int
		2246	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2247	CODE:
		2248	#if HAVE_LINUX_SPLICE
		2249	RETVAL = tee (rfh, wfh, length, flags);
		2250	#else
		2251	RETVAL = EIO_ENOSYS ();
		2252	#endif
		2253	OUTPUT:
		2254	RETVAL
		2255
		2256	int
		2257	pipesize (aio_rfd rfh, int new_size = -1)
		2258	PROTOTYPE: $;$
		2259	CODE:
		2260	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2261	if (new_size >= 0)
		2262	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2263	else
		2264	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2265	#else
		2266	errno = ENOSYS;
		2267	RETVAL = -1;
		2268	#endif
		2269	OUTPUT:
		2270	RETVAL
		2271
		2272	void
		2273	pipe2 (int flags = 0)
		2274	PROTOTYPE: ;$
		2275	PPCODE:
		2276	{
		2277	int fd[2];
		2278	int res;
		2279
		2280	if (flags)
		2281	#if HAVE_PIPE2
		2282	res = pipe2 (fd, flags);
		2283	#else
		2284	res = (errno = ENOSYS, -1);
		2285	#endif
		2286	else
		2287	res = pipe (fd);
		2288
		2289	if (!res)
		2290	{
		2291	EXTEND (SP, 2);
		2292	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2293	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2294	}
		2295	}
		2296
		2297	void
		2298	eventfd (unsigned int initval = 0, int flags = 0)
		2299	PPCODE:
		2300	{
		2301	int fd;
		2302	#if HAVE_EVENTFD
		2303	fd = eventfd (initval, flags);
		2304	#else
		2305	fd = (errno = ENOSYS, -1);
		2306	#endif
		2307
		2308	XPUSHs (newmortalFH (fd, O_RDWR));
		2309	}
		2310
		2311	void
		2312	timerfd_create (int clockid, int flags = 0)
		2313	PPCODE:
		2314	{
		2315	int fd;
		2316	#if HAVE_TIMERFD
		2317	fd = timerfd_create (clockid, flags);
		2318	#else
		2319	fd = (errno = ENOSYS, -1);
		2320	#endif
		2321
		2322	XPUSHs (newmortalFH (fd, O_RDWR));
		2323	}
		2324
		2325	void
		2326	timerfd_settime (SV *fh, int flags, NV interval, NV value)
		2327	PPCODE:
		2328	{
		2329	int fd = s_fileno_croak (fh, 0);
		2330	#if HAVE_TIMERFD
		2331	int res;
		2332	struct itimerspec its, ots;
		2333
		2334	ts_set (&its.it_interval, interval);
		2335	ts_set (&its.it_value , value);
		2336	res = timerfd_settime (fd, flags, &its, &ots);
		2337
		2338	if (!res)
		2339	{
		2340	EXTEND (SP, 2);
		2341	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2342	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2343	}
		2344	#else
		2345	errno = ENOSYS;
		2346	#endif
		2347	}
		2348
		2349	void
		2350	timerfd_gettime (SV *fh)
		2351	PPCODE:
		2352	{
		2353	int fd = s_fileno_croak (fh, 0);
		2354	#if HAVE_TIMERFD
		2355	int res;
		2356	struct itimerspec ots;
		2357	res = timerfd_gettime (fd, &ots);
		2358
		2359	if (!res)
		2360	{
		2361	EXTEND (SP, 2);
		2362	PUSHs (newSVnv (ts_get (&ots.it_interval)));
		2363	PUSHs (newSVnv (ts_get (&ots.it_value)));
		2364	}
		2365	#else
		2366	errno = ENOSYS;
		2367	#endif
		2368	}
		2369
		2370	UV
		2371	get_fdlimit ()
		2372	CODE:
		2373	#if HAVE_RLIMITS
		2374	struct rlimit rl;
		2375	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2376	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2377	#endif
		2378	XSRETURN_UNDEF;
		2379	OUTPUT:
		2380	RETVAL
		2381
		2382	void
		2383	min_fdlimit (UV limit = 0x7fffffffU)
		2384	CODE:
		2385	{
		2386	#if HAVE_RLIMITS
		2387	struct rlimit rl;
		2388	rlim_t orig_rlim_max;
		2389	UV bit;
		2390
		2391	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2392	goto fail;
		2393
		2394	if (rl.rlim_cur == RLIM_INFINITY)
		2395	XSRETURN_YES;
		2396
		2397	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2398
		2399	if (rl.rlim_cur < limit)
		2400	{
		2401	rl.rlim_cur = limit;
		2402
		2403	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2404	rl.rlim_max = rl.rlim_cur;
		2405	}
		2406
		2407	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2408	XSRETURN_YES;
		2409
		2410	if (errno == EPERM)
		2411	{
		2412	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2413	/* our limit overflows a system-wide limit */
		2414	/* try an adaptive algorithm, but do not lower the hardlimit */
		2415	rl.rlim_max = 0;
		2416	for (bit = 0x40000000U; bit; bit >>= 1)
		2417	{
		2418	rl.rlim_max |= bit;
		2419	rl.rlim_cur = rl.rlim_max;
		2420
		2421	/* nevr decrease the hard limit */
		2422	if (rl.rlim_max < orig_rlim_max)
		2423	break;
		2424
		2425	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2426	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2427	}
		2428
		2429	/* now, raise the soft limit to the max permitted */
		2430	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2431	{
		2432	rl.rlim_cur = rl.rlim_max;
		2433	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2434	errno = EPERM;
		2435	}
		2436	}
		2437	#endif
		2438	fail:
		2439	XSRETURN_UNDEF;
		2440	}
1548		2441
1549	void _on_next_submit (SV *cb)	2442	void _on_next_submit (SV *cb)
1550	CODE:	2443	CODE:
1551	SvREFCNT_dec (on_next_submit);	2444	SvREFCNT_dec (on_next_submit);
1552	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2445	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1553		2446
1554	PROTOTYPES: DISABLE	2447	PROTOTYPES: DISABLE
1555		2448
		2449	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2450
		2451	BOOT:
		2452	{
		2453	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2454	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2455	}
		2456
		2457	void
		2458	DESTROY (SV *self)
		2459	CODE:
		2460	{
		2461	aio_wd wd = SvAIO_WD (self);
		2462	#if HAVE_AT
		2463	{
		2464	SV *callback = &PL_sv_undef;
		2465	dREQ; /* clobbers next_pri :/ */
		2466	next_pri = req->pri; /* restore next_pri */
		2467	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2468	req->type = EIO_WD_CLOSE;
		2469	req->wd = wd;
		2470	REQ_SEND;
		2471	}
		2472	#else
		2473	eio_wd_close_sync (wd);
		2474	#endif
		2475	}
		2476
1556	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2477	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1557		2478
1558	void	2479	void
1559	cancel (aio_req_ornot req)	2480	cancel (aio_req_ornot req)
1560	CODE:	2481	CODE:
1561	eio_cancel (req);	2482	eio_cancel (req);
1562		2483
1563	void	2484	void
1564	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2485	cb (aio_req_ornot req, SV *callback = NO_INIT)
1565	PPCODE:	2486	PPCODE:
1566	{	2487	{
1567	if (GIMME_V != G_VOID)	2488	if (GIMME_V != G_VOID)
1568	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2489	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1569		2490
1570	if (items > 1)	2491	if (items > 1)
1571	{	2492	{
1572	SV *cb_cv =get_cb (callback);	2493	SV *cb_cv = get_cb (callback);
1573		2494
1574	SvREFCNT_dec (req->callback);	2495	SvREFCNT_dec (req->callback);
1575	req->callback = SvREFCNT_inc (cb_cv);	2496	req->callback = SvREFCNT_inc (cb_cv);
1576	}	2497	}
1577	}	2498	}
…		…
1634	limit (aio_req grp, int limit)	2555	limit (aio_req grp, int limit)
1635	CODE:	2556	CODE:
1636	eio_grp_limit (grp, limit);	2557	eio_grp_limit (grp, limit);
1637		2558
1638	void	2559	void
1639	feed (aio_req grp, SV *callback=&PL_sv_undef)	2560	feed (aio_req grp, SV *callback = &PL_sv_undef)
1640	CODE:	2561	CODE:
1641	{	2562	{
1642	SvREFCNT_dec (grp->sv2);	2563	SvREFCNT_dec (grp->sv2);
1643	grp->sv2 = newSVsv (callback);	2564	grp->sv2 = newSVsv (callback);
1644	grp->feed = aio_grp_feed;	2565	grp->feed = aio_grp_feed;

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