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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.164 by root, Tue May 4 21:14:01 2010 UTC vs.
Revision 1.251 by root, Sat Jan 6 01:04:42 2018 UTC

…		…
11	#include <stddef.h>	11	#include <stddef.h>
12	#include <stdlib.h>	12	#include <stdlib.h>
13	#include <errno.h>	13	#include <errno.h>
14	#include <sys/types.h>	14	#include <sys/types.h>
15	#include <sys/stat.h>	15	#include <sys/stat.h>
16	#include <sys/statvfs.h>
17	#include <limits.h>	16	#include <limits.h>
18	#include <fcntl.h>	17	#include <fcntl.h>
19	#include <sched.h>	18	#include <sched.h>
20		19
21	#if _POSIX_MEMLOCK || _POSIX_MAPPED_FILES	20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
22	# include <sys/mman.h>	21	# include <sys/mman.h>
		22	#endif
		23
		24	/* the incompetent fool that created musl keeps __linux__, refuses
		25	* to implement any linux standard apis, and also has no way to test
		26	* for his broken iplementation. don't complain to me if this fails
		27	* for you.
		28	*/
		29	#if __linux__ && (defined __GLIBC__ || defined __UCLIBC__)
		30	# include <linux/fs.h>
		31	# ifdef FS_IOC_FIEMAP
		32	# include <linux/types.h>
		33	# include <linux/fiemap.h>
		34	# define HAVE_FIEMAP 1
		35	# endif
23	#endif	36	#endif
24		37
25	/* perl namespace pollution */	38	/* perl namespace pollution */
26	#undef VERSION	39	#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		40
77	/* perl stupidly overrides readdir and maybe others */	41	/* perl stupidly overrides readdir and maybe others */
78	/* with thread-unsafe versions, imagine that :( */	42	/* with thread-unsafe versions, imagine that :( */
79	#undef readdir	43	#undef readdir
80	#undef opendir	44	#undef opendir
81	#undef closedir	45	#undef closedir
82		46
		47	#ifdef _WIN32
		48
		49	// perl overrides all those nice libc functions
		50
		51	#undef malloc
		52	#undef free
		53	#undef open
		54	#undef read
		55	#undef write
		56	#undef send
		57	#undef recv
		58	#undef stat
		59	#undef lstat
		60	#undef fstat
		61	#undef truncate
		62	#undef ftruncate
		63	#undef open
		64	#undef link
		65	#undef close
		66	#undef unlink
		67	#undef mkdir
		68	#undef rmdir
		69	#undef rename
		70	#undef lseek
		71	#undef opendir
		72	#undef readdir
		73	#undef closedir
		74	#undef chmod
		75	#undef fchmod
		76	#undef dup
		77	#undef dup2
		78	#undef abort
		79	#undef pipe
		80
		81	#define EIO_STRUCT_STAT struct _stati64
83	#define EIO_STRUCT_STAT Stat_t	82	#define EIO_STRUCT_STATI64
84		83
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	84	#else
91	# define VAL64 NV	85
92	# define SvVAL64 SvNV	86	#include <sys/time.h>
93	# define newSVval64 newSVnv	87	#include <sys/select.h>
		88	#include <unistd.h>
		89	#include <utime.h>
		90	#include <signal.h>
		91
		92	#define EIO_STRUCT_STAT Stat_t
		93
94	#endif	94	#endif
95		95
96	/*****************************************************************************/	96	/*****************************************************************************/
97		97
98	#if __GNUC__ >= 3	98	#if __GNUC__ >= 3
…		…
104	#define expect_false(expr) expect ((expr) != 0, 0)	104	#define expect_false(expr) expect ((expr) != 0, 0)
105	#define expect_true(expr) expect ((expr) != 0, 1)	105	#define expect_true(expr) expect ((expr) != 0, 1)
106		106
107	/*****************************************************************************/	107	/*****************************************************************************/
108		108
		109	#include "libeio/config.h"
		110
		111	#if HAVE_RLIMITS
		112	#include <sys/time.h>
		113	#include <sys/resource.h>
		114	#endif
		115
109	typedef SV SV8; /* byte-sv, used for argument-checking */	116	typedef SV SV8; /* byte-sv, used for argument-checking */
110	typedef int aio_rfd; /* read file desriptor */	117	typedef int aio_rfd; /* read file desriptor */
111	typedef int aio_wfd; /* write file descriptor */	118	typedef int aio_wfd; /* write file descriptor */
112		119
113	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;	120	static HV *aio_stash, *aio_req_stash, *aio_grp_stash, *aio_wd_stash;
114		121
115	#define EIO_REQ_MEMBERS \	122	#define EIO_REQ_MEMBERS \
116	SV *callback; \	123	SV *callback; \
117	SV *sv1, *sv2; \	124	SV *sv1, *sv2; \
		125	SV *sv3, *sv4; \
118	STRLEN stroffset; \	126	STRLEN stroffset; \
119	SV *self;	127	SV *self;
120		128
121	#define EIO_NO_WRAPPERS 1	129	#define EIO_NO_WRAPPERS 1
122		130
123	#include "libeio/eio.h"	131	#include "libeio/eio.h"
124		132
125	#ifndef POSIX_FADV_NORMAL	133	static int req_invoke (eio_req *req);
126	# define POSIX_FADV_NORMAL 0	134	#define EIO_FINISH(req) req_invoke (req)
127	# define NO_FADVISE 1	135	static void req_destroy (eio_req *grp);
128	#endif	136	#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		137
145	#ifndef ST_NODEV	138	#include "libeio/eio.c"
146	# define ST_NODEV 0
147	#endif
148	#ifndef ST_NOEXEC
149	# define ST_NOEXEC 0
150	#endif
151	#ifndef ST_SYNCHRONOUS
152	# define ST_SYNCHRONOUS 0
153	#endif
154	#ifndef ST_MANDLOCK
155	# define ST_MANDLOCK 0
156	#endif
157	#ifndef ST_WRITE
158	# define ST_WRITE 0
159	#endif
160	#ifndef ST_APPEND
161	# define ST_APPEND 0
162	#endif
163	#ifndef ST_IMMUTABLE
164	# define ST_IMMUTABLE 0
165	#endif
166	#ifndef ST_NOATIME
167	# define ST_NOATIME 0
168	#endif
169	#ifndef ST_NODIRATIME
170	# define ST_NODIRATIME 0
171	#endif
172	#ifndef ST_RELATIME
173	# define ST_RELATIME 0
174	#endif
175		139
176	#ifndef MCL_CURRENT	140	#if !HAVE_POSIX_FADVISE
177	# define MCL_CURRENT 0	141	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
178	#endif	142	#endif
179	#ifndef MCL_FUTURE	143
180	# define MCL_FUTURE 0	144	#if !HAVE_POSIX_MADVISE
		145	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
181	#endif	146	#endif
182		147
183	#ifndef MAP_ANONYMOUS	148	#ifndef MAP_ANONYMOUS
184	# ifdef MAP_ANON	149	# ifdef MAP_ANON
185	# define MAP_ANONYMOUS MAP_ANON	150	# define MAP_ANONYMOUS MAP_ANON
186	# else	151	# else
187	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */	152	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
188	# endif	153	# endif
189	#endif	154	#endif
190	#ifndef MAP_HUGETLB
191	# define MAP_HUGETLB 0
192	#endif
193	#ifndef MAP_LOCKED
194	# define MAP_LOCKED 0
195	#endif
196	#ifndef MAP_NORESERVE
197	# define MAP_NORESERVE 0
198	#endif
199	#ifndef MAP_POPULATE
200	# define MAP_POPULATE 0
201	#endif
202	#ifndef MAP_NONBLOCK
203	# define MAP_NONBLOCK 0
204	#endif
205		155
206	#ifndef PAGESIZE	156	/* defines all sorts of constants to 0 unless they are already defined */
		157	/* also provides const_iv_ and const_niv_ macros for them */
		158	#include "def0.h"
		159
		160	#ifndef makedev
		161	# define makedev(maj,min) (((maj) << 8) | (min))
		162	#endif
		163	#ifndef major
		164	# define major(dev) ((dev) >> 8)
		165	#endif
		166	#ifndef minor
		167	# define minor(dev) ((dev) & 0xff)
		168	#endif
		169
		170	#if PAGESIZE <= 0
207	# define PAGESIZE sysconf (_SC_PAGESIZE)	171	# define PAGESIZE sysconf (_SC_PAGESIZE)
208	#endif	172	#endif
209		173
210	static int req_invoke (eio_req *req);	174	/*****************************************************************************/
211	#define EIO_FINISH(req) req_invoke (req)	175
212	static void req_destroy (eio_req *grp);	176	#if !_POSIX_MAPPED_FILES
213	#define EIO_DESTROY(req) req_destroy (req)	177	# define mmap(addr,length,prot,flags,fd,offs) EIO_ENOSYS ()
		178	# define munmap(addr,length) EIO_ENOSYS ()
		179	#endif
		180
		181	#if !_POSIX_MEMORY_PROTECTION
		182	# define mprotect(addr,len,prot) EIO_ENOSYS ()
		183	#endif
		184
		185	#define FOREIGN_MAGIC PERL_MAGIC_ext
		186
		187	static int ecb_cold
		188	mmap_free (pTHX_ SV *sv, MAGIC *mg)
		189	{
		190	int old_errno = errno;
		191	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		192	errno = old_errno;
		193
		194	mg->mg_obj = 0; /* just in case */
		195
		196	SvREADONLY_off (sv);
		197
		198	if (SvPVX (sv) != mg->mg_ptr)
		199	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		200
		201	SvCUR_set (sv, 0);
		202	SvPVX (sv) = 0;
		203	SvOK_off (sv);
		204
		205	return 0;
		206	}
		207
		208	static MGVTBL mmap_vtbl = {
		209	0, 0, 0, 0, mmap_free
		210	};
		211
		212	static int ecb_cold
		213	sysfree_free (pTHX_ SV *sv, MAGIC *mg)
		214	{
		215	free (mg->mg_ptr);
		216	mg->mg_obj = 0; /* just in case */
		217
		218	SvREADONLY_off (sv);
		219
		220	if (SvPVX (sv) != mg->mg_ptr)
		221	croak ("ERROR: IO::AIO mapped scalar changed location, detected");
		222
		223	SvCUR_set (sv, 0);
		224	SvPVX (sv) = 0;
		225	SvOK_off (sv);
		226
		227	return 0;
		228	}
		229
		230	static MGVTBL sysfree_vtbl = {
		231	0, 0, 0, 0, sysfree_free
		232	};
		233
		234	/*****************************************************************************/
		235
		236	/* helper: set scalar to foreign ptr with custom free */
		237	static void
		238	sv_set_foreign (SV *sv, const MGVTBL *const vtbl, void *addr, IV length)
		239	{
		240	sv_force_normal (sv);
		241
		242	/* we store the length in mg_obj, as namlen is I32 :/ */
		243	sv_magicext (sv, 0, FOREIGN_MAGIC, vtbl, (char *)addr, 0)
		244	->mg_obj = (SV *)length;
		245
		246	SvUPGRADE (sv, SVt_PV); /* nop... */
		247
		248	if (SvLEN (sv))
		249	Safefree (SvPVX (sv));
		250
		251	SvPVX (sv) = (char *)addr;
		252	SvCUR_set (sv, length);
		253	SvLEN_set (sv, 0);
		254	SvPOK_only (sv);
		255	}
		256
		257	static void
		258	sv_clear_foreign (SV *sv)
		259	{
		260	/* todo: iterate over magic and only free ours, but of course */
		261	/* the perl5porters will call that (correct) behaviour buggy */
		262	sv_unmagic (sv, FOREIGN_MAGIC);
		263	}
		264
		265	/*****************************************************************************/
		266
		267	static void
		268	fiemap (eio_req *req)
		269	{
		270	req->result = -1;
		271
		272	#if HAVE_FIEMAP
		273	/* assume some c99 */
		274	struct fiemap *fiemap = 0;
		275	size_t end_offset;
		276	int count = req->int3;
		277
		278	req->flags |= EIO_FLAG_PTR1_FREE;
		279
		280	/* heuristic: start with 512 bytes (8 extents), and if that isn't enough, */
		281	/* increase in 3.5kb steps */
		282	if (count < 0)
		283	count = 8;
		284
		285	fiemap = malloc (sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		286	errno = ENOMEM;
		287	if (!fiemap)
		288	return;
		289
		290	req->ptr1 = fiemap;
		291
		292	fiemap->fm_start = req->offs;
		293	fiemap->fm_length = req->size;
		294	fiemap->fm_flags = req->int2;
		295	fiemap->fm_extent_count = count;
		296
		297	if (ioctl (req->int1, FS_IOC_FIEMAP, fiemap) < 0)
		298	return;
		299
		300	if (req->int3 >= 0 /* not autosizing */
		301	|| !fiemap->fm_mapped_extents /* no more extents */
		302	|| fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_flags & FIEMAP_EXTENT_LAST /* hit eof */)
		303	goto done;
		304
		305	/* else we have to loop -
		306	* it would be tempting (actually I tried that first) to just query the
		307	* number of extents needed, but linux often feels like not returning all
		308	* extents, without telling us it left any out. this complicates
		309	* this quite a bit.
		310	*/
		311
		312	end_offset = fiemap->fm_length + (fiemap->fm_length == FIEMAP_MAX_OFFSET ? 0 : fiemap->fm_start);
		313
		314	for (;;)
		315	{
		316	/* we go in 54 extent steps - 3kb, in the hope that this fits nicely on the eio stack (normally 16+ kb) */
		317	char scratch[3072];
		318	struct fiemap *incmap = (struct fiemap *)scratch;
		319
		320	incmap->fm_start = fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_logical
		321	+ fiemap->fm_extents [fiemap->fm_mapped_extents - 1].fe_length;
		322	incmap->fm_length = fiemap->fm_length - (incmap->fm_start - fiemap->fm_start);
		323	incmap->fm_flags = fiemap->fm_flags;
		324	incmap->fm_extent_count = (sizeof (scratch) - sizeof (struct fiemap)) / sizeof (struct fiemap_extent);
		325
		326	if (ioctl (req->int1, FS_IOC_FIEMAP, incmap) < 0)
		327	return;
		328
		329	if (!incmap->fm_mapped_extents)
		330	goto done;
		331
		332	count = fiemap->fm_mapped_extents + incmap->fm_mapped_extents;
		333	fiemap = realloc (fiemap, sizeof (*fiemap) + sizeof (struct fiemap_extent) * count);
		334	errno = ENOMEM;
		335	if (!fiemap)
		336	return;
		337
		338	req->ptr1 = fiemap;
		339
		340	for (count = 0; count < incmap->fm_mapped_extents; ++count)
		341	{
		342	struct fiemap_extent *e = incmap->fm_extents + count;
		343
		344	if (e->fe_logical + e->fe_length >= end_offset)
		345	goto done;
		346
		347	fiemap->fm_extents [fiemap->fm_mapped_extents++] = *e;
		348
		349	if (e->fe_flags & FIEMAP_EXTENT_LAST)
		350	goto done;
		351
		352	}
		353	}
		354
		355	done:
		356	req->result = 0;
		357
		358	#else
		359	errno = ENOSYS;
		360	#endif
		361	}
		362
		363	/*****************************************************************************/
214		364
215	enum {	365	enum {
216	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	366	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
217	};	367	};
218		368
219	#include "libeio/eio.c"
220
221	typedef eio_req *aio_req;	369	typedef eio_req *aio_req;
222	typedef eio_req *aio_req_ornot;	370	typedef eio_req *aio_req_ornot;
		371	typedef eio_wd aio_wd;
223		372
224	static SV *on_next_submit;	373	static SV *on_next_submit;
225	static int next_pri = EIO_PRI_DEFAULT;	374	static int next_pri = EIO_PRI_DEFAULT;
226	static int max_outstanding;	375	static int max_outstanding;
227		376
228	static s_epipe respipe;	377	static s_epipe respipe;
229		378
230	static void req_destroy (aio_req req);	379	static void req_destroy (aio_req req);
231	static void req_cancel (aio_req req);	380	static void req_cancel (aio_req req);
232		381
233	static void want_poll (void)	382	static void
		383	want_poll (void)
234	{	384	{
235	/* write a dummy byte to the pipe so fh becomes ready */	385	/* write a dummy byte to the pipe so fh becomes ready */
236	s_epipe_signal (&respipe);	386	s_epipe_signal (&respipe);
237	}	387	}
238		388
239	static void done_poll (void)	389	static void
		390	done_poll (void)
240	{	391	{
241	/* read any signals sent by the worker threads */	392	/* read any signals sent by the worker threads */
242	s_epipe_drain (&respipe);	393	s_epipe_drain (&respipe);
243	}	394	}
244		395
245	/* must be called at most once */	396	/* must be called at most once */
		397	static SV *
246	static SV *req_sv (aio_req req, HV *stash)	398	req_sv (aio_req req, HV *stash)
247	{	399	{
248	if (!req->self)	400	if (!req->self)
249	{	401	{
250	req->self = (SV *)newHV ();	402	req->self = (SV *)newHV ();
251	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	403	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
252	}	404	}
253		405
254	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));	406	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
255	}	407	}
256		408
257	static aio_req SvAIO_REQ (SV *sv)	409	static SV *
		410	newSVaio_wd (aio_wd wd)
		411	{
		412	return sv_bless (newRV_noinc (newSViv ((intptr_t)wd)), aio_wd_stash);
		413	}
		414
		415	static aio_req
		416	SvAIO_REQ (SV *sv)
258	{	417	{
259	MAGIC *mg;	418	MAGIC *mg;
260		419
261	if (!SvROK (sv)	420	if (!SvROK (sv)
		421	/* for speed reasons, we do not verify that SvROK actually has a stash ptr */
262	|| (SvSTASH (SvRV (sv)) != aio_grp_stash	422	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
263	&& SvSTASH (SvRV (sv)) != aio_req_stash	423	&& SvSTASH (SvRV (sv)) != aio_req_stash
264	&& !sv_derived_from (sv, "IO::AIO::REQ")))	424	&& !sv_derived_from (sv, "IO::AIO::REQ")))
265	croak ("object of class IO::AIO::REQ expected");	425	croak ("object of class IO::AIO::REQ expected");
266		426
267	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	427	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
268		428
269	return mg ? (aio_req)mg->mg_ptr : 0;	429	return mg ? (aio_req)mg->mg_ptr : 0;
270	}	430	}
271		431
		432	static aio_wd
		433	SvAIO_WD (SV *sv)
		434	{
		435	if (!SvROK (sv)
		436	|| SvTYPE (SvRV (sv)) != SVt_PVMG
		437	|| SvSTASH (SvRV (sv)) != aio_wd_stash)
		438	croak ("IO::AIO: expected a working directory object as returned by aio_wd");
		439
		440	return (aio_wd)(long)SvIVX (SvRV (sv));
		441	}
		442
		443	static SV *
		444	newmortalFH (int fd, int flags)
		445	{
		446	if (fd < 0)
		447	return &PL_sv_undef;
		448
		449	GV *gv = (GV *)sv_newmortal ();
		450	char sym[64];
		451	int symlen;
		452
		453	symlen = snprintf (sym, sizeof (sym), "fd#%d", fd);
		454	gv_init (gv, aio_stash, sym, symlen, 0);
		455
		456	symlen = snprintf (
		457	sym,
		458	sizeof (sym),
		459	"%s&=%d",
		460	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
		461	fd
		462	);
		463
		464	return do_open (gv, sym, symlen, 0, 0, 0, 0)
		465	? (SV *)gv : &PL_sv_undef;
		466	}
		467
		468	static void
272	static void aio_grp_feed (aio_req grp)	469	aio_grp_feed (aio_req grp)
273	{	470	{
274	if (grp->sv2 && SvOK (grp->sv2))	471	if (grp->sv2 && SvOK (grp->sv2))
275	{	472	{
276	dSP;	473	dSP;
277		474
…		…
285	FREETMPS;	482	FREETMPS;
286	LEAVE;	483	LEAVE;
287	}	484	}
288	}	485	}
289		486
		487	static void
290	static void req_submit (eio_req *req)	488	req_submit (eio_req *req)
291	{	489	{
292	eio_submit (req);	490	eio_submit (req);
293		491
294	if (expect_false (on_next_submit))	492	if (expect_false (on_next_submit))
295	{	493	{
…		…
302	PUTBACK;	500	PUTBACK;
303	call_sv (cb, G_DISCARD | G_EVAL);	501	call_sv (cb, G_DISCARD | G_EVAL);
304	}	502	}
305	}	503	}
306		504
		505	static int
307	static int req_invoke (eio_req *req)	506	req_invoke (eio_req *req)
308	{	507	{
309	dSP;
310
311	if (req->flags & FLAG_SV2_RO_OFF)	508	if (req->flags & FLAG_SV2_RO_OFF)
312	SvREADONLY_off (req->sv2);	509	SvREADONLY_off (req->sv2);
313		510
314	if (!EIO_CANCELLED (req) && req->callback)	511	if (!EIO_CANCELLED (req) && req->callback)
315	{	512	{
		513	dSP;
		514	static SV *sv_result_cache; /* caches the result integer SV */
		515	SV *sv_result;
		516
316	ENTER;	517	ENTER;
317	SAVETMPS;	518	SAVETMPS;
318	PUSHMARK (SP);	519	PUSHMARK (SP);
319	EXTEND (SP, 1);	520	EXTEND (SP, 1);
320		521
		522	/* do not recreate the result IV from scratch each time */
		523	if (expect_true (sv_result_cache))
		524	{
		525	sv_result = sv_result_cache; sv_result_cache = 0;
		526	SvIV_set (sv_result, req->result);
		527	SvIOK_only (sv_result);
		528	}
		529	else
		530	{
		531	sv_result = newSViv (req->result);
		532	SvREADONLY_on (sv_result);
		533	}
		534
321	switch (req->type)	535	switch (req->type)
322	{	536	{
		537	case EIO_WD_OPEN:
		538	PUSHs (req->result ? &PL_sv_undef : sv_2mortal (newSVaio_wd (req->wd)));
		539	break;
		540
323	case EIO_READDIR:	541	case EIO_READDIR:
324	{	542	{
325	SV *rv = &PL_sv_undef;	543	SV *rv = &PL_sv_undef;
326		544
327	if (req->result >= 0)	545	if (req->result >= 0)
…		…
380	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));	598	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
381	}	599	}
382	break;	600	break;
383		601
384	case EIO_OPEN:	602	case EIO_OPEN:
385	{	603	PUSHs (newmortalFH (req->result, req->int1 & (O_RDONLY | O_WRONLY | O_RDWR)));
386	/* convert fd to fh */
387	SV *fh = &PL_sv_undef;
388
389	if (req->result >= 0)
390	{
391	GV *gv = (GV *)sv_newmortal ();
392	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
393	char sym [64];
394	int symlen;
395
396	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
397	gv_init (gv, aio_stash, sym, symlen, 0);
398
399	symlen = snprintf (
400	sym,
401	sizeof (sym),
402	"%s&=%d",
403	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
404	(int)req->result
405	);
406
407	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
408	fh = (SV *)gv;
409	}
410
411	PUSHs (fh);
412	}
413	break;	604	break;
414		605
415	case EIO_STATVFS:	606	case EIO_STATVFS:
416	case EIO_FSTATVFS:	607	case EIO_FSTATVFS:
417	{	608	{
418	SV *rv = &PL_sv_undef;	609	SV *rv = &PL_sv_undef;
419		610
		611	#ifndef _WIN32
420	if (req->result >= 0)	612	if (req->result >= 0)
421	{	613	{
422	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);	614	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
423	HV *hv = newHV ();	615	HV *hv = newHV ();
		616	/* POSIX requires fsid to be unsigned long, but AIX in its infinite wisdom
		617	* chooses to make it a struct.
		618	*/
		619	unsigned long fsid = 0;
		620	memcpy (&fsid, &f->f_fsid, sizeof (unsigned long) < sizeof (f->f_fsid) ? sizeof (unsigned long) : sizeof (f->f_fsid));
424		621
425	rv = sv_2mortal (newRV_noinc ((SV *)hv));	622	rv = sv_2mortal (newRV_noinc ((SV *)hv));
426		623
427	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);	624	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
428	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);	625	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
…		…
430	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);	627	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
431	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);	628	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
432	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);	629	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
433	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);	630	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
434	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);	631	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
435	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);	632	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (fsid ), 0);
436	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);	633	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
437	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);	634	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
438	}	635	}
		636	#endif
439		637
440	PUSHs (rv);	638	PUSHs (rv);
441	}	639	}
442		640
443	break;	641	break;
…		…
459	case EIO_NOP:	657	case EIO_NOP:
460	case EIO_BUSY:	658	case EIO_BUSY:
461	break;	659	break;
462		660
463	case EIO_READLINK:	661	case EIO_READLINK:
		662	case EIO_REALPATH:
464	if (req->result > 0)	663	if (req->result > 0)
465	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));	664	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
466	break;	665	break;
467		666
468	case EIO_STAT:	667	case EIO_STAT:
469	case EIO_LSTAT:	668	case EIO_LSTAT:
470	case EIO_FSTAT:	669	case EIO_FSTAT:
471	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	670	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
		671
472	PL_laststatval = req->result;	672	if (!(PL_laststatval = req->result))
		673	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
473	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	674	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
474	PUSHs (sv_2mortal (newSViv (req->result)));	675
		676	PUSHs (sv_result);
		677	break;
		678
		679	case EIO_SEEK:
		680	PUSHs (req->result ? sv_result : sv_2mortal (newSVval64 (req->offs)));
475	break;	681	break;
476		682
477	case EIO_READ:	683	case EIO_READ:
478	{	684	{
479	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	685	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
480	*SvEND (req->sv2) = 0;	686	*SvEND (req->sv2) = 0;
481	SvPOK_only (req->sv2);	687	SvPOK_only (req->sv2);
482	SvSETMAGIC (req->sv2);	688	SvSETMAGIC (req->sv2);
483	PUSHs (sv_2mortal (newSViv (req->result)));	689	PUSHs (sv_result);
484	}	690	}
485	break;	691	break;
486		692
487	case EIO_DUP2:	693	case EIO_SLURP:
		694	{
		695	if (req->result >= 0)
		696	{
		697	/* if length was originally not known, we steal the malloc'ed memory */
		698	if (req->flags & EIO_FLAG_PTR2_FREE)
		699	{
		700	req->flags &= ~EIO_FLAG_PTR2_FREE;
		701	sv_set_foreign (req->sv2, &sysfree_vtbl, req->ptr2, req->result);
		702	}
		703	else
		704	SvCUR_set (req->sv2, req->result);
		705	}
		706
		707	PUSHs (sv_result);
		708	}
		709	break;
		710
		711	case EIO_CUSTOM:
		712	if (req->feed == fiemap)
		713	{
		714	#if HAVE_FIEMAP
		715	if (!req->result)
		716	{
		717	struct fiemap *fiemap = (struct fiemap *)req->ptr1;
		718
		719	if (fiemap->fm_extent_count)
		720	{
		721	AV *av = newAV ();
		722	int i;
		723
		724	while (fiemap->fm_mapped_extents)
		725	{
		726	struct fiemap_extent *extent = &fiemap->fm_extents [--fiemap->fm_mapped_extents];
		727	AV *ext_av = newAV ();
		728
		729	av_store (ext_av, 3, newSVuv (extent->fe_flags));
		730	av_store (ext_av, 2, newSVval64 (extent->fe_length));
		731	av_store (ext_av, 1, newSVval64 (extent->fe_physical));
		732	av_store (ext_av, 0, newSVval64 (extent->fe_logical));
		733
		734	av_store (av, fiemap->fm_mapped_extents, newRV_noinc ((SV *)ext_av));
		735	}
		736
		737	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		738	}
		739	else
		740	{
		741	SvIV_set (sv_result, fiemap->fm_mapped_extents);
		742	PUSHs (sv_result);
		743	}
		744	}
		745	#endif
		746	}
		747	else
		748	PUSHs (sv_result);
		749	break;
		750
		751	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
488	if (req->result > 0)	752	if (req->result > 0)
489	req->result = 0;	753	SvIV_set (sv_result, 0);
490	/* FALLTHROUGH */	754	/* FALLTHROUGH */
491		755
492	default:	756	default:
493	PUSHs (sv_2mortal (newSViv (req->result)));	757	PUSHs (sv_result);
494	break;	758	break;
495	}	759	}
496		760
497	errno = req->errorno;	761	errno = req->errorno;
498		762
499	PUTBACK;	763	PUTBACK;
500	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	764	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
501	SPAGAIN;	765	SPAGAIN;
502		766
		767	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		768	SvREFCNT_dec (sv_result);
		769	else
		770	sv_result_cache = sv_result;
		771
503	FREETMPS;	772	FREETMPS;
504	LEAVE;	773	LEAVE;
505		774
506	PUTBACK;	775	PUTBACK;
507	}	776	}
508		777
509	return !!SvTRUE (ERRSV);	778	return !!SvTRUE (ERRSV);
510	}	779	}
511		780
		781	static void
512	static void req_destroy (aio_req req)	782	req_destroy (aio_req req)
513	{	783	{
514	if (req->self)	784	if (req->self)
515	{	785	{
516	sv_unmagic (req->self, PERL_MAGIC_ext);	786	sv_unmagic (req->self, PERL_MAGIC_ext);
517	SvREFCNT_dec (req->self);	787	SvREFCNT_dec (req->self);
518	}	788	}
519		789
520	SvREFCNT_dec (req->sv1);	790	SvREFCNT_dec (req->sv1);
521	SvREFCNT_dec (req->sv2);	791	SvREFCNT_dec (req->sv2);
		792	SvREFCNT_dec (req->sv3);
		793	SvREFCNT_dec (req->sv4);
522	SvREFCNT_dec (req->callback);	794	SvREFCNT_dec (req->callback);
523		795
524	Safefree (req);	796	free (req);
525	}	797	}
526		798
		799	static void
527	static void req_cancel_subs (aio_req grp)	800	req_cancel_subs (aio_req grp)
528	{	801	{
529	aio_req sub;
530
531	if (grp->type != EIO_GROUP)	802	if (grp->type != EIO_GROUP)
532	return;	803	return;
533		804
534	SvREFCNT_dec (grp->sv2);	805	SvREFCNT_dec (grp->sv2);
535	grp->sv2 = 0;	806	grp->sv2 = 0;
536		807
537	eio_grp_cancel (grp);	808	eio_grp_cancel (grp);
538	}	809	}
539		810
540	static void	811	static void ecb_cold
541	create_respipe (void)	812	create_respipe (void)
542	{	813	{
543	if (s_epipe_renew (&respipe))	814	if (s_epipe_renew (&respipe))
544	croak ("IO::AIO: unable to initialize result pipe");	815	croak ("IO::AIO: unable to initialize result pipe");
545	}	816	}
546		817
547	static void poll_wait (void)	818	static void
		819	poll_wait (void)
548	{	820	{
549	while (eio_nreqs ())	821	while (eio_nreqs ())
550	{	822	{
551	int size;	823	int size;
552		824
553	X_LOCK (reslock);	825	X_LOCK (EIO_POOL->reslock);
554	size = res_queue.size;	826	size = EIO_POOL->res_queue.size;
555	X_UNLOCK (reslock);	827	X_UNLOCK (EIO_POOL->reslock);
556		828
557	if (size)	829	if (size)
558	return;	830	return;
559		831
560	etp_maybe_start_thread ();	832	etp_maybe_start_thread (EIO_POOL);
561		833
562	s_epipe_wait (&respipe);	834	s_epipe_wait (&respipe);
563	}	835	}
564	}	836	}
565		837
566	static int poll_cb (void)	838	static int
		839	poll_cb (void)
567	{	840	{
568	for (;;)	841	for (;;)
569	{	842	{
570	int res = eio_poll ();	843	int res = eio_poll ();
571		844
…		…
577		850
578	poll_wait ();	851	poll_wait ();
579	}	852	}
580	}	853	}
581		854
582	static void atfork_child (void)	855	static void ecb_cold
		856	reinit (void)
583	{	857	{
584	create_respipe ();	858	create_respipe ();
585	}
586		859
587	/*****************************************************************************/	860	if (eio_init (want_poll, done_poll) < 0)
588		861	croak ("IO::AIO: unable to initialise eio library");
589	#if !_POSIX_MAPPED_FILES
590	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
591	# define munmap(addr,length) (errno = ENOSYS, -1)
592	#endif
593
594	#define MMAP_MAGIC PERL_MAGIC_ext
595
596	static int
597	mmap_free (pTHX_ SV *sv, MAGIC *mg)
598	{
599	int old_errno = errno;
600	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
601	errno = old_errno;
602
603	mg->mg_obj = 0; /* just in case */
604
605	SvREADONLY_off (sv);
606	SvCUR_set (sv, 0);
607	SvLEN_set (sv, 0);
608	SvPVX (sv) = 0;
609	SvOK_off (sv);
610
611	return 0;
612	}	862	}
613
614	static MGVTBL mmap_vtbl = {
615	0, 0, 0, 0, mmap_free
616	};
617		863
618	/*****************************************************************************/	864	/*****************************************************************************/
619		865
620	static SV *	866	static SV *
621	get_cb (SV *cb_sv)	867	get_cb (SV *cb_sv)
622	{	868	{
623	SvGETMAGIC (cb_sv);	869	SvGETMAGIC (cb_sv);
624	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;	870	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
625	}	871	}
626		872
		873	static aio_req ecb_noinline
		874	dreq (SV *callback)
		875	{
		876	SV *cb_cv;
		877	aio_req req;
		878	int req_pri = next_pri;
		879	next_pri = EIO_PRI_DEFAULT;
		880
		881	cb_cv = get_cb (callback);
		882
		883	req = calloc (sizeof (*req), 1);
		884	if (!req)
		885	croak ("out of memory during eio_req allocation");
		886
		887	req->callback = SvREFCNT_inc (cb_cv);
		888	req->pri = req_pri;
		889
		890	return req;
		891	}
		892
627	#define dREQ \	893	#define dREQ \
628	SV *cb_cv; \	894	aio_req req = dreq (callback); \
629	aio_req req; \
630	int req_pri = next_pri; \
631	next_pri = EIO_PRI_DEFAULT; \
632	\
633	cb_cv = get_cb (callback); \
634	\
635	Newz (0, req, 1, eio_req); \
636	if (!req) \
637	croak ("out of memory during eio_req allocation"); \
638	\
639	req->callback = SvREFCNT_inc (cb_cv); \
640	req->pri = req_pri
641		895
642	#define REQ_SEND \	896	#define REQ_SEND \
643	PUTBACK; \	897	PUTBACK; \
644	req_submit (req); \	898	req_submit (req); \
645	SPAGAIN; \	899	SPAGAIN; \
646	\	900	\
647	if (GIMME_V != G_VOID) \	901	if (GIMME_V != G_VOID) \
648	XPUSHs (req_sv (req, aio_req_stash));	902	XPUSHs (req_sv (req, aio_req_stash));
649		903
		904	ecb_inline void
		905	req_set_path (aio_req req, SV *path, SV **wdsv, SV **pathsv, eio_wd *wd, void **ptr)
		906	{
		907	if (expect_false (SvROK (path)))
		908	{
		909	SV *rv = SvRV (path);
		910	SV *wdob;
		911
		912	if (SvTYPE (rv) == SVt_PVAV && AvFILLp (rv) == 1)
		913	{
		914	path = AvARRAY (rv)[1];
		915	wdob = AvARRAY (rv)[0];
		916
		917	if (SvOK (wdob))
		918	{
		919	*wd = SvAIO_WD (wdob);
		920	*wdsv = SvREFCNT_inc_NN (SvRV (wdob));
		921	}
		922	else
		923	*wd = EIO_INVALID_WD;
		924	}
		925	else if (SvTYPE (rv) == SVt_PVMG && SvSTASH (rv) == aio_wd_stash)
		926	{
		927	*wd = (aio_wd)(long)SvIVX (rv);
		928	*wdsv = SvREFCNT_inc_NN (rv);
		929	*ptr = ".";
		930	return; /* path set to "." */
		931	}
		932	else
		933	croak ("IO::AIO: pathname arguments must be specified as a string, an IO::AIO::WD object or a [IO::AIO::WD, path] pair");
		934	}
		935
		936	*pathsv = newSVsv (path);
		937	*ptr = SvPVbyte_nolen (*pathsv);
		938	}
		939
		940	static void ecb_noinline
		941	req_set_path1 (aio_req req, SV *path)
		942	{
		943	req_set_path (req, path, &req->sv1, &req->sv3, &req->wd, &req->ptr1);
		944	}
		945
		946	static void ecb_noinline
		947	req_set_fh_or_path (aio_req req, int type_path, int type_fh, SV *fh_or_path)
		948	{
		949	SV *rv = SvROK (fh_or_path) ? SvRV (fh_or_path) : fh_or_path;
		950
		951	switch (SvTYPE (rv))
		952	{
		953	case SVt_PVIO:
		954	case SVt_PVLV:
		955	case SVt_PVGV:
		956	req->type = type_fh;
		957	req->sv1 = newSVsv (fh_or_path);
		958	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		959	break;
		960
		961	default:
		962	req->type = type_path;
		963	req_set_path1 (req, fh_or_path);
		964	break;
		965	}
		966	}
		967
		968	XS(boot_IO__AIO) ecb_cold;
		969
650	MODULE = IO::AIO PACKAGE = IO::AIO	970	MODULE = IO::AIO PACKAGE = IO::AIO
651		971
652	PROTOTYPES: ENABLE	972	PROTOTYPES: ENABLE
653		973
654	BOOT:	974	BOOT:
…		…
658	IV iv;	978	IV iv;
659	} *civ, const_iv[] = {	979	} *civ, const_iv[] = {
660	# define const_niv(name, value) { # name, (IV) value },	980	# define const_niv(name, value) { # name, (IV) value },
661	# define const_iv(name) { # name, (IV) name },	981	# define const_iv(name) { # name, (IV) name },
662	# define const_eio(name) { # name, (IV) EIO_ ## name },	982	# define const_eio(name) { # name, (IV) EIO_ ## name },
		983
		984	/* you have to re-run ./gendef0 after adding/removing any constants here */
		985	/* the first block can be undef if missing */
		986	const_iv (ENOSYS)
663	const_iv (EXDEV)	987	const_iv (EXDEV)
664	const_iv (ENOSYS)	988	const_iv (EBADR)
		989
		990	/* for lseek */
		991	const_iv (SEEK_DATA)
		992	const_iv (SEEK_HOLE)
		993
		994	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		995	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		996	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		997	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		998	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		999	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		1000
		1001	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		1002	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		1003	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		1004	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		1005	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		1006
		1007	/* the second block will be 0 when missing */
665	const_iv (O_RDONLY)	1008	const_iv (O_RDONLY)
666	const_iv (O_WRONLY)	1009	const_iv (O_WRONLY)
667	const_iv (O_RDWR)	1010	const_iv (O_RDWR)
668	const_iv (O_CREAT)	1011	const_iv (O_CREAT)
669	const_iv (O_TRUNC)	1012	const_iv (O_TRUNC)
670	const_iv (O_EXCL)	1013	const_iv (O_EXCL)
671	const_iv (O_APPEND)	1014	const_iv (O_APPEND)
672	#ifndef _WIN32	1015
		1016	const_iv (O_ASYNC)
		1017	const_iv (O_DIRECT)
		1018	const_iv (O_NOATIME)
		1019
		1020	const_iv (O_CLOEXEC)
		1021	const_iv (O_NOCTTY)
		1022	const_iv (O_NOFOLLOW)
		1023	const_iv (O_NONBLOCK)
		1024	const_iv (O_EXEC)
		1025	const_iv (O_SEARCH)
		1026	const_iv (O_DIRECTORY)
		1027	const_iv (O_DSYNC)
		1028	const_iv (O_RSYNC)
		1029	const_iv (O_SYNC)
		1030	const_iv (O_PATH)
		1031	const_iv (O_TMPFILE)
		1032	const_iv (O_TTY_INIT)
		1033
673	const_iv (S_IFIFO)	1034	const_iv (S_IFIFO)
674	#endif	1035	const_iv (S_IFCHR)
675	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)	1036	const_iv (S_IFBLK)
676	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)	1037	const_iv (S_IFLNK)
677	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)	1038	const_iv (S_IFREG)
678	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)	1039	const_iv (S_IFDIR)
679	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)	1040	const_iv (S_IFWHT)
680	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)	1041	const_iv (S_IFSOCK)
		1042	const_iv (S_IFMT)
681		1043
682	const_iv (ST_RDONLY)	1044	const_iv (ST_RDONLY)
683	const_iv (ST_NOSUID)	1045	const_iv (ST_NOSUID)
684	const_iv (ST_NODEV)	1046	const_iv (ST_NODEV)
685	const_iv (ST_NOEXEC)	1047	const_iv (ST_NOEXEC)
…		…
690	const_iv (ST_IMMUTABLE)	1052	const_iv (ST_IMMUTABLE)
691	const_iv (ST_NOATIME)	1053	const_iv (ST_NOATIME)
692	const_iv (ST_NODIRATIME)	1054	const_iv (ST_NODIRATIME)
693	const_iv (ST_RELATIME)	1055	const_iv (ST_RELATIME)
694		1056
		1057	const_iv (PROT_NONE)
695	const_iv (PROT_EXEC)	1058	const_iv (PROT_EXEC)
696	const_iv (PROT_NONE)
697	const_iv (PROT_READ)	1059	const_iv (PROT_READ)
698	const_iv (PROT_WRITE)	1060	const_iv (PROT_WRITE)
699		1061
700	/*const_iv (MAP_FIXED)*/
701	const_iv (MAP_PRIVATE)	1062	const_iv (MAP_PRIVATE)
702	const_iv (MAP_SHARED)	1063	const_iv (MAP_SHARED)
		1064	const_iv (MAP_FIXED)
703	const_iv (MAP_ANONYMOUS)	1065	const_iv (MAP_ANONYMOUS)
704		1066
705	/* linuxish */	1067	/* linuxish */
706	const_iv (MAP_HUGETLB)
707	const_iv (MAP_LOCKED)	1068	const_iv (MAP_LOCKED)
708	const_iv (MAP_NORESERVE)	1069	const_iv (MAP_NORESERVE)
709	const_iv (MAP_POPULATE)	1070	const_iv (MAP_POPULATE)
710	const_iv (MAP_NONBLOCK)	1071	const_iv (MAP_NONBLOCK)
		1072	const_iv (MAP_GROWSDOWN)
		1073	const_iv (MAP_32BIT)
		1074	const_iv (MAP_HUGETLB)
		1075	const_iv (MAP_STACK)
711		1076
		1077	const_iv (F_DUPFD_CLOEXEC)
		1078
		1079	const_iv (F_OFD_GETLK)
		1080	const_iv (F_OFD_SETLK)
		1081	const_iv (F_OFD_GETLKW)
		1082
		1083	const_iv (FIFREEZE)
		1084	const_iv (FITHAW)
		1085	const_iv (FITRIM)
		1086	const_iv (FICLONE)
		1087	const_iv (FICLONERANGE)
		1088	const_iv (FIDEDUPERANGE)
		1089
		1090	const_iv (FS_IOC_GETFLAGS)
		1091	const_iv (FS_IOC_SETFLAGS)
		1092	const_iv (FS_IOC_GETVERSION)
		1093	const_iv (FS_IOC_SETVERSION)
		1094	const_iv (FS_IOC_FIEMAP)
		1095	const_iv (FS_IOC_FSGETXATTR)
		1096	const_iv (FS_IOC_FSSETXATTR)
		1097	const_iv (FS_IOC_SET_ENCRYPTION_POLICY)
		1098	const_iv (FS_IOC_GET_ENCRYPTION_PWSALT)
		1099	const_iv (FS_IOC_GET_ENCRYPTION_POLICY)
		1100
		1101	const_iv (FS_KEY_DESCRIPTOR_SIZE)
		1102
		1103	const_iv (FS_SECRM_FL)
		1104	const_iv (FS_UNRM_FL)
		1105	const_iv (FS_COMPR_FL)
		1106	const_iv (FS_SYNC_FL)
		1107	const_iv (FS_IMMUTABLE_FL)
		1108	const_iv (FS_APPEND_FL)
		1109	const_iv (FS_NODUMP_FL)
		1110	const_iv (FS_NOATIME_FL)
		1111	const_iv (FS_DIRTY_FL)
		1112	const_iv (FS_COMPRBLK_FL)
		1113	const_iv (FS_NOCOMP_FL)
		1114	const_iv (FS_ENCRYPT_FL)
		1115	const_iv (FS_BTREE_FL)
		1116	const_iv (FS_INDEX_FL)
		1117	const_iv (FS_JOURNAL_DATA_FL)
		1118	const_iv (FS_NOTAIL_FL)
		1119	const_iv (FS_DIRSYNC_FL)
		1120	const_iv (FS_TOPDIR_FL)
		1121	const_iv (FS_FL_USER_MODIFIABLE)
		1122
		1123	const_iv (FS_XFLAG_REALTIME)
		1124	const_iv (FS_XFLAG_PREALLOC)
		1125	const_iv (FS_XFLAG_IMMUTABLE)
		1126	const_iv (FS_XFLAG_APPEND)
		1127	const_iv (FS_XFLAG_SYNC)
		1128	const_iv (FS_XFLAG_NOATIME)
		1129	const_iv (FS_XFLAG_NODUMP)
		1130	const_iv (FS_XFLAG_RTINHERIT)
		1131	const_iv (FS_XFLAG_PROJINHERIT)
		1132	const_iv (FS_XFLAG_NOSYMLINKS)
		1133	const_iv (FS_XFLAG_EXTSIZE)
		1134	const_iv (FS_XFLAG_EXTSZINHERIT)
		1135	const_iv (FS_XFLAG_NODEFRAG)
		1136	const_iv (FS_XFLAG_FILESTREAM)
		1137	const_iv (FS_XFLAG_DAX)
		1138	const_iv (FS_XFLAG_HASATTR)
		1139
		1140	const_iv (FIEMAP_FLAG_SYNC)
		1141	const_iv (FIEMAP_FLAG_XATTR)
		1142	const_iv (FIEMAP_FLAGS_COMPAT)
		1143	const_iv (FIEMAP_EXTENT_LAST)
		1144	const_iv (FIEMAP_EXTENT_UNKNOWN)
		1145	const_iv (FIEMAP_EXTENT_DELALLOC)
		1146	const_iv (FIEMAP_EXTENT_ENCODED)
		1147	const_iv (FIEMAP_EXTENT_DATA_ENCRYPTED)
		1148	const_iv (FIEMAP_EXTENT_NOT_ALIGNED)
		1149	const_iv (FIEMAP_EXTENT_DATA_INLINE)
		1150	const_iv (FIEMAP_EXTENT_DATA_TAIL)
		1151	const_iv (FIEMAP_EXTENT_UNWRITTEN)
		1152	const_iv (FIEMAP_EXTENT_MERGED)
		1153	const_iv (FIEMAP_EXTENT_SHARED)
		1154
		1155	const_iv (SPLICE_F_MOVE)
		1156	const_iv (SPLICE_F_NONBLOCK)
		1157	const_iv (SPLICE_F_MORE)
		1158	const_iv (SPLICE_F_GIFT)
		1159
		1160	/* these are libeio constants, and are independent of gendef0 */
		1161	const_eio (SEEK_SET)
		1162	const_eio (SEEK_CUR)
		1163	const_eio (SEEK_END)
		1164
712	const_iv (MCL_FUTURE)	1165	const_eio (MCL_FUTURE)
713	const_iv (MCL_CURRENT)	1166	const_eio (MCL_CURRENT)
714		1167
715	const_eio (MS_ASYNC)	1168	const_eio (MS_ASYNC)
716	const_eio (MS_INVALIDATE)	1169	const_eio (MS_INVALIDATE)
717	const_eio (MS_SYNC)	1170	const_eio (MS_SYNC)
718		1171
719	const_eio (MT_MODIFY)	1172	const_eio (MT_MODIFY)
720		1173
721	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)	1174	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
722	const_eio (SYNC_FILE_RANGE_WRITE)	1175	const_eio (SYNC_FILE_RANGE_WRITE)
723	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)	1176	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		1177
		1178	const_eio (FALLOC_FL_KEEP_SIZE)
		1179	const_eio (FALLOC_FL_PUNCH_HOLE)
		1180	const_eio (FALLOC_FL_COLLAPSE_RANGE)
		1181	const_eio (FALLOC_FL_ZERO_RANGE)
		1182	const_eio (FALLOC_FL_INSERT_RANGE)
		1183	const_eio (FALLOC_FL_UNSHARE_RANGE)
		1184
		1185	const_eio (RENAME_NOREPLACE)
		1186	const_eio (RENAME_EXCHANGE)
		1187	const_eio (RENAME_WHITEOUT)
724		1188
725	const_eio (READDIR_DENTS)	1189	const_eio (READDIR_DENTS)
726	const_eio (READDIR_DIRS_FIRST)	1190	const_eio (READDIR_DIRS_FIRST)
727	const_eio (READDIR_STAT_ORDER)	1191	const_eio (READDIR_STAT_ORDER)
728	const_eio (READDIR_FOUND_UNKNOWN)	1192	const_eio (READDIR_FOUND_UNKNOWN)
…		…
739	};	1203	};
740		1204
741	aio_stash = gv_stashpv ("IO::AIO" , 1);	1205	aio_stash = gv_stashpv ("IO::AIO" , 1);
742	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);	1206	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
743	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);	1207	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
		1208	aio_wd_stash = gv_stashpv ("IO::AIO::WD" , 1);
744		1209
745	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )	1210	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
746	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));	1211	newCONSTSUB (aio_stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
747		1212
748	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));	1213	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
749		1214
750	create_respipe ();	1215	reinit ();
751
752	if (eio_init (want_poll, done_poll) < 0)
753	croak ("IO::AIO: unable to initialise eio library");
754
755	/* atfork child called in fifo order, so before eio's handler */
756	X_THREAD_ATFORK (0, 0, atfork_child);
757	}	1216	}
758		1217
759	void	1218	void
		1219	reinit ()
		1220	PROTOTYPE:
		1221
		1222	void
760	max_poll_reqs (int nreqs)	1223	max_poll_reqs (unsigned int nreqs)
761	PROTOTYPE: $	1224	PROTOTYPE: $
762	CODE:	1225	CODE:
763	eio_set_max_poll_reqs (nreqs);	1226	eio_set_max_poll_reqs (nreqs);
764		1227
765	void	1228	void
…		…
767	PROTOTYPE: $	1230	PROTOTYPE: $
768	CODE:	1231	CODE:
769	eio_set_max_poll_time (nseconds);	1232	eio_set_max_poll_time (nseconds);
770		1233
771	void	1234	void
772	min_parallel (int nthreads)	1235	min_parallel (unsigned int nthreads)
773	PROTOTYPE: $	1236	PROTOTYPE: $
774	CODE:	1237	CODE:
775	eio_set_min_parallel (nthreads);	1238	eio_set_min_parallel (nthreads);
776		1239
777	void	1240	void
778	max_parallel (int nthreads)	1241	max_parallel (unsigned int nthreads)
779	PROTOTYPE: $	1242	PROTOTYPE: $
780	CODE:	1243	CODE:
781	eio_set_max_parallel (nthreads);	1244	eio_set_max_parallel (nthreads);
782		1245
783	void	1246	void
784	max_idle (int nthreads)	1247	max_idle (unsigned int nthreads)
785	PROTOTYPE: $	1248	PROTOTYPE: $
786	CODE:	1249	CODE:
787	eio_set_max_idle (nthreads);	1250	eio_set_max_idle (nthreads);
788		1251
789	void	1252	void
		1253	idle_timeout (unsigned int seconds)
		1254	PROTOTYPE: $
		1255	CODE:
		1256	eio_set_idle_timeout (seconds);
		1257
		1258	void
790	max_outstanding (int maxreqs)	1259	max_outstanding (unsigned int maxreqs)
791	PROTOTYPE: $	1260	PROTOTYPE: $
792	CODE:	1261	CODE:
793	max_outstanding = maxreqs;	1262	max_outstanding = maxreqs;
794		1263
795	void	1264	void
796	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	1265	aio_wd (SV8 *pathname, SV *callback = &PL_sv_undef)
797	PROTOTYPE: $$$;$
798	PPCODE:	1266	PPCODE:
799	{	1267	{
800	dREQ;	1268	dREQ;
801		1269
		1270	req->type = EIO_WD_OPEN;
		1271	req_set_path1 (req, pathname);
		1272
		1273	REQ_SEND;
		1274	}
		1275
		1276	void
		1277	aio_open (SV8 *pathname, int flags, int mode, SV *callback = &PL_sv_undef)
		1278	PPCODE:
		1279	{
		1280	dREQ;
		1281
802	req->type = EIO_OPEN;	1282	req->type = EIO_OPEN;
803	req->sv1 = newSVsv (pathname);	1283	req_set_path1 (req, pathname);
804	req->ptr1 = SvPVbyte_nolen (req->sv1);
805	req->int1 = flags;	1284	req->int1 = flags;
806	req->int2 = mode;	1285	req->int2 = mode;
807		1286
808	REQ_SEND;	1287	REQ_SEND;
809	}	1288	}
810		1289
811	void	1290	void
812	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	1291	aio_fsync (SV *fh, SV *callback = &PL_sv_undef)
813	PROTOTYPE: $;$
814	ALIAS:	1292	ALIAS:
815	aio_fsync = EIO_FSYNC	1293	aio_fsync = EIO_FSYNC
816	aio_fdatasync = EIO_FDATASYNC	1294	aio_fdatasync = EIO_FDATASYNC
		1295	aio_syncfs = EIO_SYNCFS
817	PPCODE:	1296	PPCODE:
818	{	1297	{
819	int fd = s_fileno_croak (fh, 0);	1298	int fd = s_fileno_croak (fh, 0);
820	dREQ;	1299	dREQ;
821		1300
822	req->type = ix;	1301	req->type = ix;
823	req->sv1 = newSVsv (fh);	1302	req->sv1 = newSVsv (fh);
824	req->int1 = fd;	1303	req->int1 = fd;
825		1304
826	REQ_SEND (req);	1305	REQ_SEND;
827	}	1306	}
828		1307
829	void	1308	void
830	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)	1309	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback = &PL_sv_undef)
831	PROTOTYPE: $$$$;$
832	PPCODE:	1310	PPCODE:
833	{	1311	{
834	int fd = s_fileno_croak (fh, 0);	1312	int fd = s_fileno_croak (fh, 0);
835	dREQ;	1313	dREQ;
836		1314
837	req->type = EIO_SYNC_FILE_RANGE;	1315	req->type = EIO_SYNC_FILE_RANGE;
838	req->sv1 = newSVsv (fh);	1316	req->sv1 = newSVsv (fh);
839	req->int1 = fd;	1317	req->int1 = fd;
840	req->offs = offset;	1318	req->offs = offset;
841	req->size = nbytes;	1319	req->size = nbytes;
842	req->int2 = flags;	1320	req->int2 = flags;
843		1321
844	REQ_SEND (req);	1322	REQ_SEND;
845	}	1323	}
846		1324
847	void	1325	void
848	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1326	aio_allocate (SV *fh, int mode, off_t offset, size_t len, SV *callback = &PL_sv_undef)
849	PROTOTYPE: $;$
850	PPCODE:	1327	PPCODE:
851	{	1328	{
852	static int close_pipe = -1; /* dummy fd to close fds via dup2 */
853	int fd = s_fileno_croak (fh, 0);	1329	int fd = s_fileno_croak (fh, 0);
854	dREQ;	1330	dREQ;
855		1331
856	if (close_pipe < 0)	1332	req->type = EIO_FALLOCATE;
		1333	req->sv1 = newSVsv (fh);
		1334	req->int1 = fd;
		1335	req->int2 = mode;
		1336	req->offs = offset;
		1337	req->size = len;
		1338
		1339	REQ_SEND;
		1340	}
		1341
		1342	void
		1343	aio_close (SV *fh, SV *callback = &PL_sv_undef)
		1344	PPCODE:
		1345	{
		1346	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1347	int fd = s_fileno_croak (fh, 0);
		1348	dREQ;
		1349
		1350	if (expect_false (close_fd < 0))
857	{	1351	{
858	int pipefd [2];	1352	int pipefd [2];
859		1353
		1354	if (
		1355	#ifdef _WIN32
		1356	_pipe (pipefd, 1, _O_BINARY) < 0
		1357	#else
860	if (pipe (pipefd) < 0	1358	pipe (pipefd) < 0
861	|| close (pipefd [1]) < 0
862	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1359	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1360	#endif
		1361	|| close (pipefd [1]) < 0
		1362	)
863	abort (); /*D*/	1363	abort (); /*D*/
864		1364
865	close_pipe = pipefd [0];	1365	close_fd = pipefd [0];
866	}	1366	}
867		1367
868	req->type = EIO_DUP2;	1368	req->type = EIO_DUP2;
869	req->int1 = close_pipe;	1369	req->int1 = close_fd;
870	req->sv2 = newSVsv (fh);	1370	req->sv2 = newSVsv (fh);
871	req->int2 = fd;	1371	req->int2 = fd;
872		1372
873	REQ_SEND (req);	1373	REQ_SEND;
874	}	1374	}
875		1375
876	void	1376	void
		1377	aio_seek (SV *fh, SV *offset, int whence, SV *callback = &PL_sv_undef)
		1378	PPCODE:
		1379	{
		1380	int fd = s_fileno_croak (fh, 0);
		1381	dREQ;
		1382
		1383	req->type = EIO_SEEK;
		1384	req->sv1 = newSVsv (fh);
		1385	req->int1 = fd;
		1386	req->offs = SvVAL64 (offset);
		1387	req->int2 = whence;
		1388
		1389	REQ_SEND;
		1390	}
		1391
		1392	void
877	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1393	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback = &PL_sv_undef)
878	ALIAS:	1394	ALIAS:
879	aio_read = EIO_READ	1395	aio_read = EIO_READ
880	aio_write = EIO_WRITE	1396	aio_write = EIO_WRITE
881	PROTOTYPE: $$$$$;$
882	PPCODE:	1397	PPCODE:
883	{	1398	{
884	STRLEN svlen;	1399	STRLEN svlen;
885	int fd = s_fileno_croak (fh, ix == EIO_WRITE);	1400	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
886	char *svptr = SvPVbyte (data, svlen);	1401	char *svptr = SvPVbyte (data, svlen);
…		…
899	len = svlen - dataoffset;	1414	len = svlen - dataoffset;
900	}	1415	}
901	else	1416	else
902	{	1417	{
903	/* read: check type and grow scalar as necessary */	1418	/* read: check type and grow scalar as necessary */
904	SvUPGRADE (data, SVt_PV);	1419	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
905	svptr = SvGROW (data, len + dataoffset + 1);	1420	svptr = sv_grow (data, len + dataoffset);
		1421	else if (SvCUR (data) < len + dataoffset)
		1422	croak ("length + dataoffset outside of scalar, and cannot grow");
906	}	1423	}
907		1424
908	{	1425	{
909	dREQ;	1426	dREQ;
910		1427
…		…
926	REQ_SEND;	1443	REQ_SEND;
927	}	1444	}
928	}	1445	}
929		1446
930	void	1447	void
931	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1448	aio_ioctl (SV *fh, unsigned long request, SV8 *arg, SV *callback = &PL_sv_undef)
932	PROTOTYPE: $$;$	1449	ALIAS:
		1450	aio_ioctl = EIO_IOCTL
		1451	aio_fcntl = EIO_FCNTL
933	PPCODE:	1452	PPCODE:
934	{	1453	{
935	SV *data;	1454	int fd = s_fileno_croak (fh, 0);
		1455	char *svptr;
		1456
		1457	if (SvPOK (arg) || !SvNIOK (arg))
		1458	{
		1459	STRLEN svlen;
		1460	/* perl uses IOCPARM_LEN for fcntl, so we do, too */
		1461	#ifdef IOCPARM_LEN
		1462	STRLEN need = IOCPARM_LEN (request);
		1463	#else
		1464	STRLEN need = 256;
		1465	#endif
		1466
		1467	if (svlen < need)
		1468	svptr = SvGROW (arg, need);
		1469	}
		1470	else
		1471	svptr = (char *)SvIV (arg);
		1472
		1473	{
		1474	dREQ;
		1475
		1476	req->type = ix;
		1477	req->sv1 = newSVsv (fh);
		1478	req->int1 = fd;
		1479	req->int2 = (long)request;
		1480	req->sv2 = SvREFCNT_inc (arg);
		1481	req->ptr2 = svptr;
		1482
		1483	REQ_SEND;
		1484	}
		1485	}
		1486
		1487	void
		1488	aio_readlink (SV8 *pathname, SV *callback = &PL_sv_undef)
		1489	ALIAS:
		1490	aio_readlink = EIO_READLINK
		1491	aio_realpath = EIO_REALPATH
		1492	PPCODE:
		1493	{
936	dREQ;	1494	dREQ;
937		1495
938	req->type = EIO_READLINK;	1496	req->type = ix;
939	req->sv1 = newSVsv (path);	1497	req_set_path1 (req, pathname);
940	req->ptr1 = SvPVbyte_nolen (req->sv1);
941		1498
942	REQ_SEND;	1499	REQ_SEND;
943	}	1500	}
944		1501
945	void	1502	void
946	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)	1503	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback = &PL_sv_undef)
947	PROTOTYPE: $$$$;$
948	PPCODE:	1504	PPCODE:
949	{	1505	{
950	int ifd = s_fileno_croak (in_fh , 0);	1506	int ifd = s_fileno_croak (in_fh , 0);
951	int ofd = s_fileno_croak (out_fh, 1);	1507	int ofd = s_fileno_croak (out_fh, 1);
952	dREQ;	1508	dREQ;
953		1509
954	req->type = EIO_SENDFILE;	1510	req->type = EIO_SENDFILE;
955	req->sv1 = newSVsv (out_fh);	1511	req->sv1 = newSVsv (out_fh);
956	req->int1 = ofd;	1512	req->int1 = ofd;
…		…
961		1517
962	REQ_SEND;	1518	REQ_SEND;
963	}	1519	}
964		1520
965	void	1521	void
966	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)	1522	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback = &PL_sv_undef)
967	PROTOTYPE: $$$;$
968	PPCODE:	1523	PPCODE:
969	{	1524	{
970	int fd = s_fileno_croak (fh, 0);	1525	int fd = s_fileno_croak (fh, 0);
971	dREQ;	1526	dREQ;
972		1527
973	req->type = EIO_READAHEAD;	1528	req->type = EIO_READAHEAD;
974	req->sv1 = newSVsv (fh);	1529	req->sv1 = newSVsv (fh);
975	req->int1 = fd;	1530	req->int1 = fd;
…		…
978		1533
979	REQ_SEND;	1534	REQ_SEND;
980	}	1535	}
981		1536
982	void	1537	void
983	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1538	aio_stat (SV8 *fh_or_path, SV *callback = &PL_sv_undef)
984	ALIAS:	1539	ALIAS:
985	aio_stat = EIO_STAT	1540	aio_stat = EIO_STAT
986	aio_lstat = EIO_LSTAT	1541	aio_lstat = EIO_LSTAT
987	aio_statvfs = EIO_STATVFS	1542	aio_statvfs = EIO_STATVFS
988	PPCODE:	1543	PPCODE:
989	{	1544	{
990	dREQ;	1545	dREQ;
991		1546
992	req->sv1 = newSVsv (fh_or_path);	1547	req_set_fh_or_path (req, ix, ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT, fh_or_path);
993
994	if (SvPOK (req->sv1))
995	{
996	req->type = ix;
997	req->ptr1 = SvPVbyte_nolen (req->sv1);
998	}
999	else
1000	{
1001	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
1002	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1003	}
1004		1548
1005	REQ_SEND;	1549	REQ_SEND;
1006	}	1550	}
1007		1551
		1552	UV
		1553	major (UV dev)
		1554	ALIAS:
		1555	minor = 1
		1556	CODE:
		1557	RETVAL = ix ? minor (dev) : major (dev);
		1558	OUTPUT:
		1559	RETVAL
		1560
		1561	UV
		1562	makedev (UV maj, UV min)
		1563	CODE:
		1564	RETVAL = makedev (maj, min);
		1565	OUTPUT:
		1566	RETVAL
		1567
1008	void	1568	void
1009	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1569	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback = &PL_sv_undef)
1010	PPCODE:	1570	PPCODE:
1011	{	1571	{
1012	dREQ;	1572	dREQ;
1013		1573
1014	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1574	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
1015	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1575	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
1016	req->sv1 = newSVsv (fh_or_path);	1576	req_set_fh_or_path (req, EIO_UTIME, EIO_FUTIME, fh_or_path);
1017
1018	if (SvPOK (req->sv1))
1019	{
1020	req->type = EIO_UTIME;
1021	req->ptr1 = SvPVbyte_nolen (req->sv1);
1022	}
1023	else
1024	{
1025	req->type = EIO_FUTIME;
1026	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1027	}
1028		1577
1029	REQ_SEND;	1578	REQ_SEND;
1030	}	1579	}
1031		1580
1032	void	1581	void
1033	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback=&PL_sv_undef)	1582	aio_truncate (SV8 *fh_or_path, SV *offset, SV *callback = &PL_sv_undef)
1034	PPCODE:	1583	PPCODE:
1035	{	1584	{
1036	dREQ;	1585	dREQ;
1037		1586
1038	req->sv1 = newSVsv (fh_or_path);
1039	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1587	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
1040		1588	req_set_fh_or_path (req, EIO_TRUNCATE, EIO_FTRUNCATE, fh_or_path);
1041	if (SvPOK (req->sv1))
1042	{
1043	req->type = EIO_TRUNCATE;
1044	req->ptr1 = SvPVbyte_nolen (req->sv1);
1045	}
1046	else
1047	{
1048	req->type = EIO_FTRUNCATE;
1049	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1050	}
1051		1589
1052	REQ_SEND;	1590	REQ_SEND;
1053	}	1591	}
1054		1592
1055	void	1593	void
1056	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1594	aio_chmod (SV8 *fh_or_path, int mode, SV *callback = &PL_sv_undef)
1057	ALIAS:
1058	aio_chmod = EIO_CHMOD
1059	aio_mkdir = EIO_MKDIR
1060	PPCODE:	1595	PPCODE:
1061	{	1596	{
1062	dREQ;	1597	dREQ;
1063		1598
1064	req->int2 = mode;	1599	req->int2 = mode;
1065	req->sv1 = newSVsv (fh_or_path);	1600	req_set_fh_or_path (req, EIO_CHMOD, EIO_FCHMOD, fh_or_path);
1066
1067	if (SvPOK (req->sv1))
1068	{
1069	req->type = ix;
1070	req->ptr1 = SvPVbyte_nolen (req->sv1);
1071	}
1072	else
1073	{
1074	req->type = EIO_FCHMOD;
1075	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1076	}
1077		1601
1078	REQ_SEND;	1602	REQ_SEND;
1079	}	1603	}
1080		1604
1081	void	1605	void
1082	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback=&PL_sv_undef)	1606	aio_chown (SV8 *fh_or_path, SV *uid, SV *gid, SV *callback = &PL_sv_undef)
1083	PPCODE:	1607	PPCODE:
1084	{	1608	{
1085	dREQ;	1609	dREQ;
1086		1610
1087	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1611	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
1088	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1612	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
1089	req->sv1 = newSVsv (fh_or_path);	1613	req_set_fh_or_path (req, EIO_CHOWN, EIO_FCHOWN, fh_or_path);
1090
1091	if (SvPOK (req->sv1))
1092	{
1093	req->type = EIO_CHOWN;
1094	req->ptr1 = SvPVbyte_nolen (req->sv1);
1095	}
1096	else
1097	{
1098	req->type = EIO_FCHOWN;
1099	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
1100	}
1101		1614
1102	REQ_SEND;	1615	REQ_SEND;
1103	}	1616	}
1104		1617
1105	void	1618	void
1106	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)	1619	aio_readdirx (SV8 *pathname, IV flags, SV *callback = &PL_sv_undef)
1107	PPCODE:	1620	PPCODE:
1108	{	1621	{
1109	dREQ;	1622	dREQ;
1110		1623
1111	req->type = EIO_READDIR;	1624	req->type = EIO_READDIR;
1112	req->sv1 = newSVsv (pathname);
1113	req->ptr1 = SvPVbyte_nolen (req->sv1);
1114	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;	1625	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
1115		1626
1116	if (flags & EIO_READDIR_DENTS)	1627	if (flags & EIO_READDIR_DENTS)
1117	req->int1 |= EIO_READDIR_CUSTOM2;	1628	req->int1 |= EIO_READDIR_CUSTOM2;
1118		1629
		1630	req_set_path1 (req, pathname);
		1631
1119	REQ_SEND;	1632	REQ_SEND;
1120	}	1633	}
1121		1634
1122	void	1635	void
		1636	aio_mkdir (SV8 *pathname, int mode, SV *callback = &PL_sv_undef)
		1637	PPCODE:
		1638	{
		1639	dREQ;
		1640
		1641	req->type = EIO_MKDIR;
		1642	req->int2 = mode;
		1643	req_set_path1 (req, pathname);
		1644
		1645	REQ_SEND;
		1646	}
		1647
		1648	void
1123	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1649	aio_unlink (SV8 *pathname, SV *callback = &PL_sv_undef)
1124	ALIAS:	1650	ALIAS:
1125	aio_unlink = EIO_UNLINK	1651	aio_unlink = EIO_UNLINK
1126	aio_rmdir = EIO_RMDIR	1652	aio_rmdir = EIO_RMDIR
1127	aio_readdir = EIO_READDIR	1653	aio_readdir = EIO_READDIR
1128	PPCODE:	1654	PPCODE:
1129	{	1655	{
1130	dREQ;	1656	dREQ;
1131		1657
1132	req->type = ix;	1658	req->type = ix;
1133	req->sv1 = newSVsv (pathname);	1659	req_set_path1 (req, pathname);
1134	req->ptr1 = SvPVbyte_nolen (req->sv1);
1135		1660
1136	REQ_SEND;	1661	REQ_SEND;
1137	}	1662	}
1138		1663
1139	void	1664	void
1140	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback=&PL_sv_undef)	1665	aio_link (SV8 *oldpath, SV8 *newpath, SV *callback = &PL_sv_undef)
1141	ALIAS:	1666	ALIAS:
1142	aio_link = EIO_LINK	1667	aio_link = EIO_LINK
1143	aio_symlink = EIO_SYMLINK	1668	aio_symlink = EIO_SYMLINK
1144	aio_rename = EIO_RENAME	1669	aio_rename = EIO_RENAME
1145	PPCODE:	1670	PPCODE:
1146	{	1671	{
		1672	eio_wd wd2 = 0;
1147	dREQ;	1673	dREQ;
1148		1674
1149	req->type = ix;	1675	req->type = ix;
1150	req->sv1 = newSVsv (oldpath);	1676	req_set_path1 (req, oldpath);
1151	req->ptr1 = SvPVbyte_nolen (req->sv1);	1677	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
1152	req->sv2 = newSVsv (newpath);	1678	req->int3 = (long)wd2;
1153	req->ptr2 = SvPVbyte_nolen (req->sv2);
1154		1679
1155	REQ_SEND;	1680	REQ_SEND;
1156	}	1681	}
1157		1682
1158	void	1683	void
		1684	aio_rename2 (SV8 *oldpath, SV8 *newpath, int flags = 0, SV *callback = &PL_sv_undef)
		1685	PPCODE:
		1686	{
		1687	eio_wd wd2 = 0;
		1688	dREQ;
		1689
		1690	req->type = EIO_RENAME;
		1691	req_set_path1 (req, oldpath);
		1692	req_set_path (req, newpath, &req->sv2, &req->sv4, &wd2, &req->ptr2);
		1693	req->int2 = flags;
		1694	req->int3 = (long)wd2;
		1695
		1696	REQ_SEND;
		1697	}
		1698
		1699	void
1159	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback=&PL_sv_undef)	1700	aio_mknod (SV8 *pathname, int mode, UV dev, SV *callback = &PL_sv_undef)
1160	PPCODE:	1701	PPCODE:
1161	{	1702	{
1162	dREQ;	1703	dREQ;
1163		1704
1164	req->type = EIO_MKNOD;	1705	req->type = EIO_MKNOD;
1165	req->sv1 = newSVsv (pathname);
1166	req->ptr1 = SvPVbyte_nolen (req->sv1);
1167	req->int2 = (mode_t)mode;	1706	req->int2 = (mode_t)mode;
1168	req->offs = dev;	1707	req->offs = dev;
		1708	req_set_path1 (req, pathname);
1169		1709
1170	REQ_SEND;	1710	REQ_SEND;
1171	}	1711	}
1172		1712
1173	void	1713	void
1174	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)	1714	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = -1, SV *callback = &PL_sv_undef)
1175	ALIAS:	1715	ALIAS:
1176	aio_mtouch = EIO_MTOUCH	1716	aio_mtouch = EIO_MTOUCH
1177	aio_msync = EIO_MSYNC	1717	aio_msync = EIO_MSYNC
1178	PROTOTYPE: $$$$;$
1179	PPCODE:	1718	PPCODE:
1180	{	1719	{
1181	STRLEN svlen;	1720	STRLEN svlen;
		1721	char *svptr = SvPVbyte (data, svlen);
1182	UV len = SvUV (length);	1722	UV len = SvUV (length);
1183	char *svptr = SvPVbyte (data, svlen);	1723
		1724	if (flags < 0)
		1725	flags = ix == EIO_MSYNC ? EIO_MS_SYNC : 0;
1184		1726
1185	if (offset < 0)	1727	if (offset < 0)
1186	offset += svlen;	1728	offset += svlen;
1187		1729
1188	if (offset < 0 || offset > svlen)	1730	if (offset < 0 || offset > svlen)
…		…
1193		1735
1194	{	1736	{
1195	dREQ;	1737	dREQ;
1196		1738
1197	req->type = ix;	1739	req->type = ix;
1198	req->size = len;
1199	req->sv2 = SvREFCNT_inc (data);	1740	req->sv2 = SvREFCNT_inc (data);
1200	req->ptr2 = (char *)svptr + offset;	1741	req->ptr2 = (char *)svptr + offset;
		1742	req->size = len;
1201	req->int1 = flags;	1743	req->int1 = flags;
1202		1744
1203	REQ_SEND;	1745	REQ_SEND;
1204	}	1746	}
1205	}	1747	}
1206		1748
1207	void	1749	void
		1750	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback = &PL_sv_undef)
		1751	PPCODE:
		1752	{
		1753	STRLEN svlen;
		1754	char *svptr = SvPVbyte (data, svlen);
		1755	UV len = SvUV (length);
		1756
		1757	if (offset < 0)
		1758	offset += svlen;
		1759
		1760	if (offset < 0 || offset > svlen)
		1761	croak ("offset outside of scalar");
		1762
		1763	if (!SvOK (length) || len + offset > svlen)
		1764	len = svlen - offset;
		1765
		1766	{
		1767	dREQ;
		1768
		1769	req->type = EIO_MLOCK;
		1770	req->sv2 = SvREFCNT_inc (data);
		1771	req->ptr2 = (char *)svptr + offset;
		1772	req->size = len;
		1773
		1774	REQ_SEND;
		1775	}
		1776	}
		1777
		1778	void
		1779	aio_mlockall (IV flags, SV *callback = &PL_sv_undef)
		1780	PPCODE:
		1781	{
		1782	dREQ;
		1783
		1784	req->type = EIO_MLOCKALL;
		1785	req->int1 = flags;
		1786
		1787	REQ_SEND;
		1788	}
		1789
		1790	void
		1791	aio_fiemap (SV *fh, off_t start, SV *length, U32 flags, SV *count, SV *callback = &PL_sv_undef)
		1792	PPCODE:
		1793	{
		1794	int fd = s_fileno_croak (fh, 0);
		1795	dREQ;
		1796
		1797	req->type = EIO_CUSTOM;
		1798	req->sv1 = newSVsv (fh);
		1799	req->int1 = fd;
		1800
		1801	req->feed = fiemap;
		1802	#if HAVE_FIEMAP
		1803	/* keep our fingers crossed that the next two types are 64 bit */
		1804	req->offs = start;
		1805	req->size = SvOK (length) ? SvVAL64 (length) : ~0ULL;
		1806	req->int2 = flags;
		1807	req->int3 = SvOK (count) ? SvIV (count) : -1;
		1808	#endif
		1809
		1810	REQ_SEND;
		1811	}
		1812
		1813	void
		1814	aio_slurp (SV *pathname, off_t offset, UV length, SV8 *data, SV *callback = &PL_sv_undef)
		1815	PPCODE:
		1816	{
		1817	char *svptr = 0;
		1818
		1819	sv_clear_foreign (data);
		1820
		1821	if (length) /* known length, directly read into scalar */
		1822	{
		1823	if (!SvPOK (data) || SvLEN (data) >= SvCUR (data))
		1824	svptr = sv_grow (data, length);
		1825	else if (SvCUR (data) < length)
		1826	croak ("length outside of scalar, and cannot grow");
		1827	else
		1828	svptr = SvPVbyte_nolen (data);
		1829	}
		1830
		1831	{
		1832	dREQ;
		1833
		1834	req->type = EIO_SLURP;
		1835	req_set_path1 (req, pathname);
		1836	req->offs = offset;
		1837	req->size = length;
		1838	req->sv2 = SvREFCNT_inc (data);
		1839	req->ptr2 = svptr;
		1840
		1841	if (!SvREADONLY (data))
		1842	{
		1843	SvREADONLY_on (data);
		1844	req->flags |= FLAG_SV2_RO_OFF;
		1845	}
		1846
		1847	REQ_SEND;
		1848	}
		1849	}
		1850
		1851	void
1208	aio_busy (double delay, SV *callback=&PL_sv_undef)	1852	aio_busy (double delay, SV *callback = &PL_sv_undef)
1209	PPCODE:	1853	PPCODE:
1210	{	1854	{
1211	dREQ;	1855	dREQ;
1212		1856
1213	req->type = EIO_BUSY;	1857	req->type = EIO_BUSY;
…		…
1215		1859
1216	REQ_SEND;	1860	REQ_SEND;
1217	}	1861	}
1218		1862
1219	void	1863	void
1220	aio_group (SV *callback=&PL_sv_undef)	1864	aio_group (SV *callback = &PL_sv_undef)
1221	PROTOTYPE: ;$
1222	PPCODE:	1865	PPCODE:
1223	{	1866	{
1224	dREQ;	1867	dREQ;
1225		1868
1226	req->type = EIO_GROUP;	1869	req->type = EIO_GROUP;
1227		1870
		1871	PUTBACK;
1228	req_submit (req);	1872	req_submit (req);
		1873	SPAGAIN;
		1874
1229	XPUSHs (req_sv (req, aio_grp_stash));	1875	XPUSHs (req_sv (req, aio_grp_stash));
1230	}	1876	}
1231		1877
1232	void	1878	void
1233	aio_nop (SV *callback=&PL_sv_undef)	1879	aio_nop (SV *callback = &PL_sv_undef)
1234	ALIAS:	1880	ALIAS:
1235	aio_nop = EIO_NOP	1881	aio_nop = EIO_NOP
1236	aio_sync = EIO_SYNC	1882	aio_sync = EIO_SYNC
1237	PPCODE:	1883	PPCODE:
1238	{	1884	{
…		…
1242		1888
1243	REQ_SEND;	1889	REQ_SEND;
1244	}	1890	}
1245		1891
1246	int	1892	int
1247	aioreq_pri (int pri = 0)	1893	aioreq_pri (int pri = NO_INIT)
1248	PROTOTYPE: ;$
1249	CODE:	1894	CODE:
1250	RETVAL = next_pri;	1895	RETVAL = next_pri;
1251	if (items > 0)	1896	if (items > 0)
1252	{	1897	{
1253	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1898	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
…		…
1265	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1910	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
1266	next_pri = nice;	1911	next_pri = nice;
1267		1912
1268	void	1913	void
1269	flush ()	1914	flush ()
1270	PROTOTYPE:
1271	CODE:	1915	CODE:
1272	while (eio_nreqs ())	1916	while (eio_nreqs ())
1273	{	1917	{
1274	poll_wait ();	1918	poll_wait ();
1275	poll_cb ();	1919	poll_cb ();
1276	}	1920	}
1277		1921
1278	int	1922	int
1279	poll()	1923	poll ()
1280	PROTOTYPE:
1281	CODE:	1924	CODE:
1282	poll_wait ();	1925	poll_wait ();
1283	RETVAL = poll_cb ();	1926	RETVAL = poll_cb ();
1284	OUTPUT:	1927	OUTPUT:
1285	RETVAL	1928	RETVAL
1286		1929
1287	int	1930	int
1288	poll_fileno()	1931	poll_fileno ()
1289	PROTOTYPE:
1290	CODE:	1932	CODE:
1291	RETVAL = s_epipe_fd (&respipe);	1933	RETVAL = s_epipe_fd (&respipe);
1292	OUTPUT:	1934	OUTPUT:
1293	RETVAL	1935	RETVAL
1294		1936
1295	int	1937	int
1296	poll_cb(...)	1938	poll_cb (...)
1297	PROTOTYPE:	1939	PROTOTYPE:
1298	CODE:	1940	CODE:
1299	RETVAL = poll_cb ();	1941	RETVAL = poll_cb ();
1300	OUTPUT:	1942	OUTPUT:
1301	RETVAL	1943	RETVAL
1302		1944
1303	void	1945	void
1304	poll_wait()	1946	poll_wait ()
1305	PROTOTYPE:
1306	CODE:	1947	CODE:
1307	poll_wait ();	1948	poll_wait ();
1308		1949
1309	int	1950	int
1310	nreqs()	1951	nreqs ()
1311	PROTOTYPE:
1312	CODE:	1952	CODE:
1313	RETVAL = eio_nreqs ();	1953	RETVAL = eio_nreqs ();
1314	OUTPUT:	1954	OUTPUT:
1315	RETVAL	1955	RETVAL
1316		1956
1317	int	1957	int
1318	nready()	1958	nready ()
1319	PROTOTYPE:
1320	CODE:	1959	CODE:
1321	RETVAL = eio_nready ();	1960	RETVAL = eio_nready ();
1322	OUTPUT:	1961	OUTPUT:
1323	RETVAL	1962	RETVAL
1324		1963
1325	int	1964	int
1326	npending()	1965	npending ()
1327	PROTOTYPE:
1328	CODE:	1966	CODE:
1329	RETVAL = eio_npending ();	1967	RETVAL = eio_npending ();
1330	OUTPUT:	1968	OUTPUT:
1331	RETVAL	1969	RETVAL
1332		1970
1333	int	1971	int
1334	nthreads()	1972	nthreads ()
1335	PROTOTYPE:
1336	CODE:	1973	CODE:
1337	RETVAL = eio_nthreads ();	1974	RETVAL = eio_nthreads ();
1338	OUTPUT:	1975	OUTPUT:
1339	RETVAL	1976	RETVAL
1340		1977
1341	int	1978	int
1342	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)	1979	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
1343	PROTOTYPE: $$$$
1344	CODE:	1980	CODE:
1345	#if _XOPEN_SOURCE >= 600 && !NO_FADVISE
1346	RETVAL = posix_fadvise (fh, offset, length, advice);	1981	RETVAL = posix_fadvise (fh, offset, length, advice);
1347	#else
1348	RETVAL = errno = ENOSYS; /* yes, this is actually correct */
1349	#endif
1350	OUTPUT:	1982	OUTPUT:
1351	RETVAL	1983	RETVAL
1352		1984
1353	ssize_t	1985	IV
1354	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)	1986	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
1355	PROTOTYPE: $$$$
1356	CODE:	1987	CODE:
1357	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);	1988	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
1358	OUTPUT:	1989	OUTPUT:
1359	RETVAL	1990	RETVAL
1360		1991
1361	void	1992	void
1362	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)	1993	mmap (SV *scalar, STRLEN length, int prot, int flags, SV *fh = &PL_sv_undef, off_t offset = 0)
1363	PROTOTYPE: $$$$$;$
1364	PPCODE:	1994	PPCODE:
1365	sv_unmagic (scalar, MMAP_MAGIC);	1995	sv_clear_foreign (scalar);
1366	{	1996	{
1367	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;	1997	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
1368	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);	1998	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
1369	if (addr == (void *)-1)	1999	if (addr == (void *)-1)
1370	XSRETURN_NO;	2000	XSRETURN_NO;
1371		2001
1372	/* we store the length in mg_obj, as namlen is I32 :/ */	2002	sv_set_foreign (scalar, &mmap_vtbl, addr, length);
1373	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
1374	->mg_obj = (SV *)length;
1375		2003
1376	SvUPGRADE (scalar, SVt_PV); /* nop... */
1377	if (!(prot & PROT_WRITE))	2004	if (!(prot & PROT_WRITE))
1378	SvREADONLY_on (scalar);	2005	SvREADONLY_on (scalar);
1379		2006
1380	SvPVX (scalar) = (char *)addr;
1381	SvCUR_set (scalar, length);
1382	SvLEN_set (scalar, 0);
1383	SvPOK_only (scalar);
1384
1385	XSRETURN_YES;	2007	XSRETURN_YES;
1386	}	2008	}
1387		2009
1388	void	2010	void
1389	munmap (SV *scalar)	2011	munmap (SV *scalar)
1390	PROTOTYPE: $
1391	CODE:	2012	CODE:
1392	sv_unmagic (scalar, MMAP_MAGIC);	2013	sv_clear_foreign (scalar);
1393		2014
1394	int	2015	int
1395	mlockall (int flags)	2016	madvise (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
1396	PROTOTYPE: $	2017	ALIAS:
		2018	mprotect = 1
1397	CODE:	2019	CODE:
		2020	{
		2021	STRLEN svlen;
		2022	void *addr = SvPVbyte (scalar, svlen);
		2023	STRLEN len = SvUV (length);
		2024
		2025	if (offset < 0)
		2026	offset += svlen;
		2027
		2028	if (offset < 0 || offset > svlen)
		2029	croak ("offset outside of scalar");
		2030
		2031	if (!SvOK (length) || len + offset > svlen)
		2032	len = svlen - offset;
		2033
		2034	addr = (void *)(((intptr_t)addr) + offset);
		2035	eio_page_align (&addr, &len);
		2036
		2037	switch (ix)
		2038	{
		2039	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		2040	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		2041	}
		2042	}
		2043	OUTPUT:
		2044	RETVAL
		2045
		2046	int
		2047	munlock (SV *scalar, STRLEN offset = 0, SV *length = &PL_sv_undef)
		2048	CODE:
		2049	{
		2050	STRLEN svlen;
		2051	void *addr = SvPVbyte (scalar, svlen);
		2052	size_t len = SvUV (length);
		2053
		2054	if (offset < 0)
		2055	offset += svlen;
		2056
		2057	if (offset < 0 || offset > svlen)
		2058	croak ("offset outside of scalar");
		2059
		2060	if (!SvOK (length) || len + offset > svlen)
		2061	len = svlen - offset;
		2062
		2063	addr = (void *)(((intptr_t)addr) + offset);
		2064	eio_page_align (&addr, &len);
1398	#if _POSIX_MEMLOCK	2065	#if _POSIX_MEMLOCK_RANGE
1399	#if __GLIBC__ == 2 && __GLIBC_MINOR__ <= 7	2066	RETVAL = munlock (addr, len);
1400	extern int mallopt (int, int);
1401	mallopt (-6, 238); /* http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=473812 */
1402	#endif
1403	mlockall (flags);
1404	#else	2067	#else
1405	RETVAL = -1;	2068	RETVAL = EIO_ENOSYS ();
1406	errno = ENOSYS;
1407	#endif	2069	#endif
		2070	}
1408	OUTPUT:	2071	OUTPUT:
1409	RETVAL	2072	RETVAL
1410		2073
1411	int	2074	int
1412	munlockall ()	2075	munlockall ()
1413	PROTOTYPE:
1414	CODE:	2076	CODE:
1415	#if _POSIX_MEMLOCK	2077	#if _POSIX_MEMLOCK
1416	munlockall ();	2078	munlockall ();
1417	#else	2079	#else
1418	RETVAL = -1;	2080	RETVAL = EIO_ENOSYS ();
1419	errno = ENOSYS;
1420	#endif	2081	#endif
1421	OUTPUT:	2082	OUTPUT:
1422	RETVAL	2083	RETVAL
		2084
		2085	int
		2086	splice (aio_rfd rfh, SV *off_in, aio_wfd wfh, SV *off_out, size_t length, unsigned int flags)
		2087	CODE:
		2088	{
		2089	#if HAVE_LINUX_SPLICE
		2090	loff_t off_in_, off_out_;
		2091	RETVAL = splice (
		2092	rfh, SvOK (off_in ) ? (off_in_ = SvVAL64 (off_in )), &off_in_ : 0,
		2093	wfh, SvOK (off_out) ? (off_out_ = SvVAL64 (off_out)), &off_out_ : 0,
		2094	length, flags
		2095	);
		2096	#else
		2097	RETVAL = EIO_ENOSYS ();
		2098	#endif
		2099	}
		2100	OUTPUT:
		2101	RETVAL
		2102
		2103	int
		2104	tee (aio_rfd rfh, aio_wfd wfh, size_t length, unsigned int flags)
		2105	CODE:
		2106	#if HAVE_LINUX_SPLICE
		2107	RETVAL = tee (rfh, wfh, length, flags);
		2108	#else
		2109	RETVAL = EIO_ENOSYS ();
		2110	#endif
		2111	OUTPUT:
		2112	RETVAL
		2113
		2114	int
		2115	pipesize (aio_rfd rfh, int new_size = -1)
		2116	PROTOTYPE: $;$
		2117	CODE:
		2118	#if defined(F_SETPIPE_SZ) && defined(F_GETPIPE_SZ)
		2119	if (new_size >= 0)
		2120	RETVAL = fcntl (rfh, F_SETPIPE_SZ, new_size);
		2121	else
		2122	RETVAL = fcntl (rfh, F_GETPIPE_SZ);
		2123	#else
		2124	errno = ENOSYS;
		2125	RETVAL = -1;
		2126	#endif
		2127	OUTPUT:
		2128	RETVAL
		2129
		2130	void
		2131	pipe2 (int flags = 0)
		2132	PROTOTYPE: ;$
		2133	PPCODE:
		2134	{
		2135	int fd[2];
		2136	int res;
		2137
		2138	if (flags)
		2139	#if HAVE_PIPE2
		2140	res = pipe2 (fd, flags);
		2141	#else
		2142	res = (errno = ENOSYS, -1);
		2143	#endif
		2144	else
		2145	res = pipe (fd);
		2146
		2147	if (!res)
		2148	{
		2149	EXTEND (SP, 2);
		2150	PUSHs (newmortalFH (fd[0], O_RDONLY));
		2151	PUSHs (newmortalFH (fd[1], O_WRONLY));
		2152	}
		2153	}
		2154
		2155	UV
		2156	get_fdlimit ()
		2157	CODE:
		2158	#if HAVE_RLIMITS
		2159	struct rlimit rl;
		2160	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2161	XSRETURN_UV (rl.rlim_cur == RLIM_INFINITY ? (UV)-1 : rl.rlim_cur);
		2162	#endif
		2163	XSRETURN_UNDEF;
		2164	OUTPUT:
		2165	RETVAL
		2166
		2167	void
		2168	min_fdlimit (UV limit = 0x7fffffffU)
		2169	CODE:
		2170	{
		2171	#if HAVE_RLIMITS
		2172	struct rlimit rl;
		2173	rlim_t orig_rlim_max;
		2174	UV bit;
		2175
		2176	if (0 != getrlimit (RLIMIT_NOFILE, &rl))
		2177	goto fail;
		2178
		2179	if (rl.rlim_cur == RLIM_INFINITY)
		2180	XSRETURN_YES;
		2181
		2182	orig_rlim_max = rl.rlim_max == RLIM_INFINITY ? ((rlim_t)0)-1 : rl.rlim_max;
		2183
		2184	if (rl.rlim_cur < limit)
		2185	{
		2186	rl.rlim_cur = limit;
		2187
		2188	if (rl.rlim_max < rl.rlim_cur && rl.rlim_max != RLIM_INFINITY)
		2189	rl.rlim_max = rl.rlim_cur;
		2190	}
		2191
		2192	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2193	XSRETURN_YES;
		2194
		2195	if (errno == EPERM)
		2196	{
		2197	/* setlimit failed with EPERM - maybe we can't raise the hardlimit, or maybe */
		2198	/* our limit overflows a system-wide limit */
		2199	/* try an adaptive algorithm, but do not lower the hardlimit */
		2200	rl.rlim_max = 0;
		2201	for (bit = 0x40000000U; bit; bit >>= 1)
		2202	{
		2203	rl.rlim_max |= bit;
		2204	rl.rlim_cur = rl.rlim_max;
		2205
		2206	/* nevr decrease the hard limit */
		2207	if (rl.rlim_max < orig_rlim_max)
		2208	break;
		2209
		2210	if (0 != setrlimit (RLIMIT_NOFILE, &rl))
		2211	rl.rlim_max &= ~bit; /* too high, remove bit again */
		2212	}
		2213
		2214	/* now, raise the soft limit to the max permitted */
		2215	if (0 == getrlimit (RLIMIT_NOFILE, &rl))
		2216	{
		2217	rl.rlim_cur = rl.rlim_max;
		2218	if (0 == setrlimit (RLIMIT_NOFILE, &rl))
		2219	errno = EPERM;
		2220	}
		2221	}
		2222	#endif
		2223	fail:
		2224	XSRETURN_UNDEF;
		2225	}
1423		2226
1424	void _on_next_submit (SV *cb)	2227	void _on_next_submit (SV *cb)
1425	CODE:	2228	CODE:
1426	SvREFCNT_dec (on_next_submit);	2229	SvREFCNT_dec (on_next_submit);
1427	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	2230	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1428		2231
1429	PROTOTYPES: DISABLE	2232	PROTOTYPES: DISABLE
1430		2233
		2234	MODULE = IO::AIO PACKAGE = IO::AIO::WD
		2235
		2236	BOOT:
		2237	{
		2238	newCONSTSUB (aio_stash, "CWD" , newSVaio_wd (EIO_CWD ));
		2239	newCONSTSUB (aio_stash, "INVALID_WD", newSVaio_wd (EIO_INVALID_WD));
		2240	}
		2241
		2242	void
		2243	DESTROY (SV *self)
		2244	CODE:
		2245	{
		2246	aio_wd wd = SvAIO_WD (self);
		2247	#if HAVE_AT
		2248	{
		2249	SV *callback = &PL_sv_undef;
		2250	dREQ; /* clobbers next_pri :/ */
		2251	next_pri = req->pri; /* restore next_pri */
		2252	req->pri = EIO_PRI_MAX; /* better use max. priority to conserve fds */
		2253	req->type = EIO_WD_CLOSE;
		2254	req->wd = wd;
		2255	REQ_SEND;
		2256	}
		2257	#else
		2258	eio_wd_close_sync (wd);
		2259	#endif
		2260	}
		2261
1431	MODULE = IO::AIO PACKAGE = IO::AIO::REQ	2262	MODULE = IO::AIO PACKAGE = IO::AIO::REQ
1432		2263
1433	void	2264	void
1434	cancel (aio_req_ornot req)	2265	cancel (aio_req_ornot req)
1435	CODE:	2266	CODE:
1436	eio_cancel (req);	2267	eio_cancel (req);
1437		2268
1438	void	2269	void
1439	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	2270	cb (aio_req_ornot req, SV *callback = NO_INIT)
1440	PPCODE:	2271	PPCODE:
1441	{	2272	{
1442	if (GIMME_V != G_VOID)	2273	if (GIMME_V != G_VOID)
1443	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);	2274	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
1444		2275
1445	if (items > 1)	2276	if (items > 1)
1446	{	2277	{
1447	SV *cb_cv =get_cb (callback);	2278	SV *cb_cv = get_cb (callback);
1448		2279
1449	SvREFCNT_dec (req->callback);	2280	SvREFCNT_dec (req->callback);
1450	req->callback = SvREFCNT_inc (cb_cv);	2281	req->callback = SvREFCNT_inc (cb_cv);
1451	}	2282	}
1452	}	2283	}
…		…
1509	limit (aio_req grp, int limit)	2340	limit (aio_req grp, int limit)
1510	CODE:	2341	CODE:
1511	eio_grp_limit (grp, limit);	2342	eio_grp_limit (grp, limit);
1512		2343
1513	void	2344	void
1514	feed (aio_req grp, SV *callback=&PL_sv_undef)	2345	feed (aio_req grp, SV *callback = &PL_sv_undef)
1515	CODE:	2346	CODE:
1516	{	2347	{
1517	SvREFCNT_dec (grp->sv2);	2348	SvREFCNT_dec (grp->sv2);
1518	grp->sv2 = newSVsv (callback);	2349	grp->sv2 = newSVsv (callback);
1519	grp->feed = aio_grp_feed;	2350	grp->feed = aio_grp_feed;

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