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/cvs/IO-AIO/AIO.xs

Comparing IO-AIO/AIO.xs (file contents):
Revision 1.117 by root, Sat May 10 20:02:09 2008 UTC vs.
Revision 1.188 by root, Sun Jul 17 04:20:04 2011 UTC

…		…
3	#include <errno.h>	3	#include <errno.h>
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
		9	#include "schmorp.h"
8		10
9	#include <stddef.h>	11	#include <stddef.h>
10	#include <stdlib.h>	12	#include <stdlib.h>
11	#include <errno.h>	13	#include <errno.h>
12	#include <sys/types.h>	14	#include <sys/types.h>
13	#include <sys/stat.h>	15	#include <sys/stat.h>
14	#include <limits.h>	16	#include <limits.h>
15	#include <fcntl.h>	17	#include <fcntl.h>
16	#include <sched.h>	18	#include <sched.h>
17		19
		20	#if _POSIX_MEMLOCK || _POSIX_MEMLOCK_RANGE || _POSIX_MAPPED_FILES
		21	# include <sys/mman.h>
		22	#endif
		23
		24	/* perl namespace pollution */
		25	#undef VERSION
		26
		27	/* perl stupidly overrides readdir and maybe others */
		28	/* with thread-unsafe versions, imagine that :( */
		29	#undef readdir
		30	#undef opendir
		31	#undef closedir
		32
18	#ifdef _WIN32	33	#ifdef _WIN32
19		34
20	# define EIO_STRUCT_DIRENT Direntry_t	35	#define EIO_STRUCT_DIRENT Direntry_t
21	# undef malloc	36	#undef malloc
22	# undef free	37	#undef free
23		38
24	// perl overrides all those nice win32 functions	39	// perl overrides all those nice libc functions
25	# undef open	40	#undef open
26	# undef read	41	#undef read
27	# undef write	42	#undef write
28	# undef send	43	#undef send
29	# undef recv	44	#undef recv
30	# undef stat	45	#undef stat
		46	#undef lstat
31	# undef fstat	47	#undef fstat
32	# define lstat stat
33	# undef truncate	48	#undef truncate
34	# undef ftruncate	49	#undef ftruncate
35	# undef open	50	#undef open
		51	#undef link
36	# undef close	52	#undef close
37	# undef unlink	53	#undef unlink
		54	#undef mkdir
38	# undef rmdir	55	#undef rmdir
39	# undef rename	56	#undef rename
40	# undef lseek	57	#undef lseek
41		58	#undef opendir
42	# define chown(a,b,c) (errno = ENOSYS, -1)	59	#undef readdir
43	# define fchown(a,b,c) (errno = ENOSYS, -1)	60	#undef closedir
44	# define fchmod(a,b) (errno = ENOSYS, -1)	61	#undef chmod
45	# define symlink(a,b) (errno = ENOSYS, -1)	62	#undef fchmod
46	# define readlink(a,b,c) (errno = ENOSYS, -1)	63	#undef dup
47	# define mknod(a,b,c) (errno = ENOSYS, -1)	64	#undef dup2
48	# define truncate(a,b) (errno = ENOSYS, -1)	65	#undef abort
49	# define ftruncate(fd,o) chsize ((fd), (o))	66	#undef pipe
50	# define fsync(fd) _commit (fd)
51	# define opendir(fd) (errno = ENOSYS, 0)
52	# define readdir(fd) (errno = ENOSYS, -1)
53	# define closedir(fd) (errno = ENOSYS, -1)
54	# define mkdir(a,b) mkdir (a)
55		67
56	#else	68	#else
57		69
58	# include <sys/time.h>	70	#include <sys/time.h>
59	# include <sys/select.h>	71	#include <sys/select.h>
60	# include <unistd.h>	72	#include <unistd.h>
61	# include <utime.h>	73	#include <utime.h>
62	# include <signal.h>	74	#include <signal.h>
63	# define EIO_STRUCT_DIRENT struct dirent
64		75
65	#endif	76	#endif
66		77
67	#define EIO_STRUCT_STAT Stat_t	78	#define EIO_STRUCT_STAT Stat_t
68		79
69	/* use NV for 32 bit perls as it allows larger offsets */	80	/* use NV for 32 bit perls as it allows larger offsets */
70	#if IVSIZE >= 8	81	#if IVSIZE >= 8
		82	# define VAL64 IV
71	# define SvVAL64 SvIV	83	# define SvVAL64 SvIV
		84	# define newSVval64 newSViv
72	#else	85	#else
		86	# define VAL64 NV
73	# define SvVAL64 SvNV	87	# define SvVAL64 SvNV
		88	# define newSVval64 newSVnv
74	#endif	89	#endif
75		90
76	static HV *stash;	91	/*****************************************************************************/
		92
		93	#if __GNUC__ >= 3
		94	# define expect(expr,value) __builtin_expect ((expr),(value))
		95	#else
		96	# define expect(expr,value) (expr)
		97	#endif
		98
		99	#define expect_false(expr) expect ((expr) != 0, 0)
		100	#define expect_true(expr) expect ((expr) != 0, 1)
		101
		102	/*****************************************************************************/
		103
77	typedef SV SV8; /* byte-sv, used for argument-checking */	104	typedef SV SV8; /* byte-sv, used for argument-checking */
		105	typedef int aio_rfd; /* read file desriptor */
		106	typedef int aio_wfd; /* write file descriptor */
78		107
79	#define AIO_REQ_KLASS "IO::AIO::REQ"	108	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
80	#define AIO_GRP_KLASS "IO::AIO::GRP"
81		109
82	#define EIO_COMMON \	110	#define EIO_REQ_MEMBERS \
83	SV *callback; \	111	SV *callback; \
84	SV *sv1, *sv2; \	112	SV *sv1, *sv2; \
85	STRLEN stroffset; \	113	STRLEN stroffset; \
86	SV *self	114	SV *self;
87		115
		116	#define EIO_NO_WRAPPERS 1
		117
		118	#include "libeio/config.h"
88	#include "libeio/eio.h"	119	#include "libeio/eio.h"
89		120
90	static int req_invoke (eio_req *req);	121	static int req_invoke (eio_req *req);
91	#define EIO_FINISH(req) req_invoke (req)	122	#define EIO_FINISH(req) req_invoke (req)
92	static void aio_grp_feed (eio_req *grp);
93	#define EIO_FEED(req) aio_grp_feed (req)
94	static void req_destroy (eio_req *grp);	123	static void req_destroy (eio_req *grp);
95	#define EIO_DESTROY(req) req_destroy (req)	124	#define EIO_DESTROY(req) req_destroy (req)
		125
		126	#include "libeio/eio.c"
		127
		128	/* Linux/others */
		129	#ifndef O_ASYNC
		130	# define O_ASYNC 0
		131	#endif
		132	#ifndef O_DIRECT
		133	# define O_DIRECT 0
		134	#endif
		135	#ifndef O_NOATIME
		136	# define O_NOATIME 0
		137	#endif
		138
		139	/* POSIX */
		140	#ifndef O_CLOEXEC
		141	# define O_CLOEXEC 0
		142	#endif
		143	#ifndef O_NOFOLLOW
		144	# define O_NOFOLLOW 0
		145	#endif
		146	#ifndef O_NOCTTY
		147	# define O_NOCTTY 0
		148	#endif
		149	#ifndef O_NONBLOCK
		150	# define O_NONBLOCK 0
		151	#endif
		152	#ifndef O_EXEC
		153	# define O_EXEC 0
		154	#endif
		155	#ifndef O_SEARCH
		156	# define O_SEARCH 0
		157	#endif
		158	#ifndef O_DIRECTORY
		159	# define O_DIRECTORY 0
		160	#endif
		161	#ifndef O_DSYNC
		162	# define O_DSYNC 0
		163	#endif
		164	#ifndef O_RSYNC
		165	# define O_RSYNC 0
		166	#endif
		167	#ifndef O_SYNC
		168	# define O_SYNC 0
		169	#endif
		170	#ifndef O_TTY_INIT
		171	# define O_TTY_INIT 0
		172	#endif
		173
		174	#ifndef POSIX_FADV_NORMAL
		175	# define POSIX_FADV_NORMAL 0
		176	#endif
		177	#ifndef POSIX_FADV_SEQUENTIAL
		178	# define POSIX_FADV_SEQUENTIAL 0
		179	#endif
		180	#ifndef POSIX_FADV_RANDOM
		181	# define POSIX_FADV_RANDOM 0
		182	#endif
		183	#ifndef POSIX_FADV_NOREUSE
		184	# define POSIX_FADV_NOREUSE 0
		185	#endif
		186	#ifndef POSIX_FADV_WILLNEED
		187	# define POSIX_FADV_WILLNEED 0
		188	#endif
		189	#ifndef POSIX_FADV_DONTNEED
		190	# define POSIX_FADV_DONTNEED 0
		191	#endif
		192
		193	#if !HAVE_POSIX_FADVISE
		194	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		195	#endif
		196
		197	#ifndef POSIX_MADV_NORMAL
		198	# define POSIX_MADV_NORMAL 0
		199	#endif
		200	#ifndef POSIX_MADV_SEQUENTIAL
		201	# define POSIX_MADV_SEQUENTIAL 0
		202	#endif
		203	#ifndef POSIX_MADV_RANDOM
		204	# define POSIX_MADV_RANDOM 0
		205	#endif
		206	#ifndef POSIX_MADV_WILLNEED
		207	# define POSIX_MADV_WILLNEED 0
		208	#endif
		209	#ifndef POSIX_MADV_DONTNEED
		210	# define POSIX_MADV_DONTNEED 0
		211	#endif
		212
		213	#if !HAVE_POSIX_MADVISE
		214	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		215	#endif
		216
		217	#ifndef PROT_NONE
		218	# define PROT_NONE 0
		219	#endif
		220	#ifndef PROT_READ
		221	# define PROT_READ 0
		222	#endif
		223	#ifndef PROT_WRITE
		224	# define PROT_READ 0
		225	#endif
		226	#ifndef PROT_EXEC
		227	# define PROT_EXEC 0
		228	#endif
		229
		230	#ifndef ST_RDONLY
		231	# define ST_RDONLY 0
		232	#endif
		233	#ifndef ST_NOSUID
		234	# define ST_NOSUID 0
		235	#endif
		236	#ifndef ST_NODEV
		237	# define ST_NODEV 0
		238	#endif
		239	#ifndef ST_NOEXEC
		240	# define ST_NOEXEC 0
		241	#endif
		242	#ifndef ST_SYNCHRONOUS
		243	# define ST_SYNCHRONOUS 0
		244	#endif
		245	#ifndef ST_MANDLOCK
		246	# define ST_MANDLOCK 0
		247	#endif
		248	#ifndef ST_WRITE
		249	# define ST_WRITE 0
		250	#endif
		251	#ifndef ST_APPEND
		252	# define ST_APPEND 0
		253	#endif
		254	#ifndef ST_IMMUTABLE
		255	# define ST_IMMUTABLE 0
		256	#endif
		257	#ifndef ST_NOATIME
		258	# define ST_NOATIME 0
		259	#endif
		260	#ifndef ST_NODIRATIME
		261	# define ST_NODIRATIME 0
		262	#endif
		263	#ifndef ST_RELATIME
		264	# define ST_RELATIME 0
		265	#endif
		266
		267	#ifndef S_IFIFO
		268	# define S_IFIFO 0
		269	#endif
		270	#ifndef S_IFCHR
		271	# define S_IFCHR 0
		272	#endif
		273	#ifndef S_IFBLK
		274	# define S_IFBLK 0
		275	#endif
		276	#ifndef S_IFLNK
		277	# define S_IFLNK 0
		278	#endif
		279	#ifndef S_IFREG
		280	# define S_IFREG 0
		281	#endif
		282	#ifndef S_IFDIR
		283	# define S_IFDIR 0
		284	#endif
		285	#ifndef S_IFWHT
		286	# define S_IFWHT 0
		287	#endif
		288	#ifndef S_IFSOCK
		289	# define S_IFSOCK 0
		290	#endif
		291
		292	#ifndef MAP_ANONYMOUS
		293	# ifdef MAP_ANON
		294	# define MAP_ANONYMOUS MAP_ANON
		295	# else
		296	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		297	# endif
		298	#endif
		299	#ifndef MAP_HUGETLB
		300	# define MAP_HUGETLB 0
		301	#endif
		302	#ifndef MAP_LOCKED
		303	# define MAP_LOCKED 0
		304	#endif
		305	#ifndef MAP_NORESERVE
		306	# define MAP_NORESERVE 0
		307	#endif
		308	#ifndef MAP_POPULATE
		309	# define MAP_POPULATE 0
		310	#endif
		311	#ifndef MAP_NONBLOCK
		312	# define MAP_NONBLOCK 0
		313	#endif
		314
		315	#ifndef makedev
		316	# define makedev(maj,min) (((maj) << 8) | (min))
		317	#endif
		318	#ifndef major
		319	# define major(dev) ((dev) >> 8)
		320	#endif
		321	#ifndef minor
		322	# define minor(dev) ((dev) & 0xff)
		323	#endif
		324
		325	#ifndef PAGESIZE
		326	# define PAGESIZE sysconf (_SC_PAGESIZE)
		327	#endif
96		328
97	enum {	329	enum {
98	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	330	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
99	};	331	};
100		332
101	#include "libeio/eio.c"
102
103	typedef eio_req *aio_req;	333	typedef eio_req *aio_req;
104	typedef eio_req *aio_req_ornot;	334	typedef eio_req *aio_req_ornot;
105		335
106	static SV *on_next_submit;	336	static SV *on_next_submit;
107	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	337	static int next_pri = EIO_PRI_DEFAULT;
108	static int max_outstanding;	338	static int max_outstanding;
109		339
110	static int respipe_osf [2], respipe [2] = { -1, -1 };	340	static s_epipe respipe;
111		341
112	static void req_destroy (aio_req req);	342	static void req_destroy (aio_req req);
113	static void req_cancel (aio_req req);	343	static void req_cancel (aio_req req);
114		344
115	static void want_poll (void)	345	static void want_poll (void)
116	{	346	{
117	/* write a dummy byte to the pipe so fh becomes ready */	347	/* write a dummy byte to the pipe so fh becomes ready */
118	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	348	s_epipe_signal (&respipe);
119	}	349	}
120		350
121	static void done_poll (void)	351	static void done_poll (void)
122	{	352	{
123	/* read any signals sent by the worker threads */	353	/* read any signals sent by the worker threads */
124	char buf [4];	354	s_epipe_drain (&respipe);
125	while (respipe_read (respipe [0], buf, 4) == 4)
126	;
127	}	355	}
128		356
129	/* must be called at most once */	357	/* must be called at most once */
130	static SV *req_sv (aio_req req, const char *klass)	358	static SV *req_sv (aio_req req, HV *stash)
131	{	359	{
132	if (!req->self)	360	if (!req->self)
133	{	361	{
134	req->self = (SV *)newHV ();	362	req->self = (SV *)newHV ();
135	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	363	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
136	}	364	}
137		365
138	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	366	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
139	}	367	}
140		368
141	static aio_req SvAIO_REQ (SV *sv)	369	static aio_req SvAIO_REQ (SV *sv)
142	{	370	{
143	MAGIC *mg;	371	MAGIC *mg;
144		372
145	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	373	if (!SvROK (sv)
		374	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		375	&& SvSTASH (SvRV (sv)) != aio_req_stash
		376	&& !sv_derived_from (sv, "IO::AIO::REQ")))
146	croak ("object of class " AIO_REQ_KLASS " expected");	377	croak ("object of class IO::AIO::REQ expected");
147		378
148	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	379	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
149		380
150	return mg ? (aio_req)mg->mg_ptr : 0;	381	return mg ? (aio_req)mg->mg_ptr : 0;
151	}	382	}
…		…
157	dSP;	388	dSP;
158		389
159	ENTER;	390	ENTER;
160	SAVETMPS;	391	SAVETMPS;
161	PUSHMARK (SP);	392	PUSHMARK (SP);
162	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	393	XPUSHs (req_sv (grp, aio_grp_stash));
163	PUTBACK;	394	PUTBACK;
164	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	395	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
165	SPAGAIN;	396	SPAGAIN;
166	FREETMPS;	397	FREETMPS;
167	LEAVE;	398	LEAVE;
…		…
170		401
171	static void req_submit (eio_req *req)	402	static void req_submit (eio_req *req)
172	{	403	{
173	eio_submit (req);	404	eio_submit (req);
174		405
175	if (on_next_submit)	406	if (expect_false (on_next_submit))
176	{	407	{
177	dSP;	408	dSP;
178	SV *cb = sv_2mortal (on_next_submit);	409	SV *cb = sv_2mortal (on_next_submit);
179		410
180	on_next_submit = 0;	411	on_next_submit = 0;
…		…
185	}	416	}
186	}	417	}
187		418
188	static int req_invoke (eio_req *req)	419	static int req_invoke (eio_req *req)
189	{	420	{
190	dSP;
191
192	if (req->flags & FLAG_SV2_RO_OFF)	421	if (req->flags & FLAG_SV2_RO_OFF)
193	SvREADONLY_off (req->sv2);	422	SvREADONLY_off (req->sv2);
194		423
195	if (!EIO_CANCELLED (req) && SvOK (req->callback))	424	if (!EIO_CANCELLED (req) && req->callback)
196	{	425	{
		426	dSP;
		427	static SV *sv_result_cache; /* caches the result integer SV */
		428	SV *sv_result;
		429
197	ENTER;	430	ENTER;
198	SAVETMPS;	431	SAVETMPS;
199	PUSHMARK (SP);	432	PUSHMARK (SP);
200	EXTEND (SP, 1);	433	EXTEND (SP, 1);
		434
		435	/* do not recreate the result IV from scratch each time */
		436	if (expect_true (sv_result_cache))
		437	{
		438	sv_result = sv_result_cache; sv_result_cache = 0;
		439	SvIV_set (sv_result, req->result);
		440	SvIOK_only (sv_result);
		441	}
		442	else
		443	{
		444	sv_result = newSViv (req->result);
		445	SvREADONLY_on (sv_result);
		446	}
201		447
202	switch (req->type)	448	switch (req->type)
203	{	449	{
204	case EIO_READDIR:	450	case EIO_READDIR:
205	{	451	{
206	SV *rv = &PL_sv_undef;	452	SV *rv = &PL_sv_undef;
207		453
208	if (req->result >= 0)	454	if (req->result >= 0)
209	{	455	{
210	int i;	456	int i;
211	char *buf = req->ptr2;	457	char *names = (char *)req->ptr2;
		458	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
212	AV *av = newAV ();	459	AV *av = newAV ();
213		460
214	av_extend (av, req->result - 1);	461	av_extend (av, req->result - 1);
215		462
216	for (i = 0; i < req->result; ++i)	463	for (i = 0; i < req->result; ++i)
217	{	464	{
218	SV *sv = newSVpv (buf, 0);	465	if (req->int1 & EIO_READDIR_DENTS)
		466	{
		467	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
219		468
		469	if (req->int1 & EIO_READDIR_CUSTOM2)
		470	{
		471	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		472	AV *avent = newAV ();
		473
		474	av_extend (avent, 2);
		475
		476	if (!sv_type [ent->type])
		477	{
		478	sv_type [ent->type] = newSViv (ent->type);
		479	SvREADONLY_on (sv_type [ent->type]);
		480	}
		481
		482	av_store (avent, 0, namesv);
		483	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		484	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		485
		486	av_store (av, i, newRV_noinc ((SV *)avent));
		487	}
		488	else
220	av_store (av, i, sv);	489	av_store (av, i, namesv);
		490
		491	++ent;
		492	}
		493	else
		494	{
		495	SV *name = newSVpv (names, 0);
		496	av_store (av, i, name);
221	buf += SvCUR (sv) + 1;	497	names += SvCUR (name) + 1;
		498	}
222	}	499	}
223		500
224	rv = sv_2mortal (newRV_noinc ((SV *)av));	501	rv = sv_2mortal (newRV_noinc ((SV *)av));
225	}	502	}
226		503
227	PUSHs (rv);	504	PUSHs (rv);
		505
		506	if (req->int1 & EIO_READDIR_CUSTOM1)
		507	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
228	}	508	}
229	break;	509	break;
230		510
231	case EIO_OPEN:	511	case EIO_OPEN:
232	{	512	{
…		…
238	GV *gv = (GV *)sv_newmortal ();	518	GV *gv = (GV *)sv_newmortal ();
239	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	519	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
240	char sym [64];	520	char sym [64];
241	int symlen;	521	int symlen;
242		522
243	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	523	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
244	gv_init (gv, stash, sym, symlen, 0);	524	gv_init (gv, aio_stash, sym, symlen, 0);
245		525
246	symlen = snprintf (	526	symlen = snprintf (
247	sym,	527	sym,
248	sizeof (sym),	528	sizeof (sym),
249	"%s&=%d",	529	"%s&=%d",
250	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	530	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
251	req->result	531	(int)req->result
252	);	532	);
253		533
254	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	534	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
255	fh = (SV *)gv;	535	fh = (SV *)gv;
256	}	536	}
257		537
258	PUSHs (fh);	538	PUSHs (fh);
259	}	539	}
		540	break;
		541
		542	case EIO_STATVFS:
		543	case EIO_FSTATVFS:
		544	{
		545	SV *rv = &PL_sv_undef;
		546
		547	#ifndef _WIN32
		548	if (req->result >= 0)
		549	{
		550	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		551	HV *hv = newHV ();
		552
		553	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		554
		555	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		556	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		557	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		558	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		559	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		560	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		561	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		562	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		563	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		564	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		565	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		566	}
		567	#endif
		568
		569	PUSHs (rv);
		570	}
		571
260	break;	572	break;
261		573
262	case EIO_GROUP:	574	case EIO_GROUP:
263	req->int1 = 2; /* mark group as finished */	575	req->int1 = 2; /* mark group as finished */
264		576
…		…
276	case EIO_NOP:	588	case EIO_NOP:
277	case EIO_BUSY:	589	case EIO_BUSY:
278	break;	590	break;
279		591
280	case EIO_READLINK:	592	case EIO_READLINK:
		593	case EIO_REALPATH:
281	if (req->result > 0)	594	if (req->result > 0)
282	{	595	PUSHs (sv_2mortal (newSVpvn (req->ptr2, req->result)));
283	SvCUR_set (req->sv2, req->result);
284	*SvEND (req->sv2) = 0;
285	PUSHs (req->sv2);
286	}
287	break;	596	break;
288		597
289	case EIO_STAT:	598	case EIO_STAT:
290	case EIO_LSTAT:	599	case EIO_LSTAT:
291	case EIO_FSTAT:	600	case EIO_FSTAT:
292	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	601	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
293	PL_laststatval = req->result;	602	PL_laststatval = req->result;
		603	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
294	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	604	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
295	PUSHs (sv_2mortal (newSViv (req->result)));	605	PUSHs (sv_result);
296	break;	606	break;
297		607
298	case EIO_READ:	608	case EIO_READ:
		609	{
299	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	610	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
300	*SvEND (req->sv2) = 0;	611	*SvEND (req->sv2) = 0;
301	PUSHs (sv_2mortal (newSViv (req->result)));	612	SvPOK_only (req->sv2);
		613	SvSETMAGIC (req->sv2);
		614	PUSHs (sv_result);
		615	}
302	break;	616	break;
303		617
304	case EIO_DUP2:	618	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
305	if (req->result > 0)	619	if (req->result > 0)
306	req->result = 0;	620	SvIV_set (sv_result, 0);
307	/* FALLTHROUGH */	621	/* FALLTHROUGH */
308		622
309	default:	623	default:
310	PUSHs (sv_2mortal (newSViv (req->result)));	624	PUSHs (sv_result);
311	break;	625	break;
312	}	626	}
313		627
314	errno = req->errorno;	628	errno = req->errorno;
315		629
316	PUTBACK;	630	PUTBACK;
317	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	631	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
318	SPAGAIN;	632	SPAGAIN;
		633
		634	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		635	SvREFCNT_dec (sv_result);
		636	else
		637	sv_result_cache = sv_result;
319		638
320	FREETMPS;	639	FREETMPS;
321	LEAVE;	640	LEAVE;
322		641
323	PUTBACK;	642	PUTBACK;
…		…
341	Safefree (req);	660	Safefree (req);
342	}	661	}
343		662
344	static void req_cancel_subs (aio_req grp)	663	static void req_cancel_subs (aio_req grp)
345	{	664	{
346	aio_req sub;
347
348	if (grp->type != EIO_GROUP)	665	if (grp->type != EIO_GROUP)
349	return;	666	return;
350		667
351	SvREFCNT_dec (grp->sv2);	668	SvREFCNT_dec (grp->sv2);
352	grp->sv2 = 0;	669	grp->sv2 = 0;
353		670
354	eio_grp_cancel (grp);	671	eio_grp_cancel (grp);
355	}	672	}
356		673
357	#ifdef USE_SOCKETS_AS_HANDLES
358	# define TO_SOCKET(x) (win32_get_osfhandle (x))
359	#else
360	# define TO_SOCKET(x) (x)
361	#endif
362
363	static void
364	create_respipe (void)	674	static void create_respipe (void)
365	{	675	{
366	int old_readfd = respipe [0];
367
368	if (respipe [1] >= 0)
369	respipe_close (TO_SOCKET (respipe [1]));
370
371	#ifdef _WIN32
372	if (PerlSock_socketpair (AF_UNIX, SOCK_STREAM, 0, respipe))
373	#else
374	if (pipe (respipe))	676	if (s_epipe_renew (&respipe))
375	#endif
376	croak ("unable to initialize result pipe");	677	croak ("IO::AIO: unable to initialize result pipe");
377
378	if (old_readfd >= 0)
379	{
380	if (dup2 (TO_SOCKET (respipe [0]), TO_SOCKET (old_readfd)) < 0)
381	croak ("unable to initialize result pipe(2)");
382
383	respipe_close (respipe [0]);
384	respipe [0] = old_readfd;
385	}
386
387	#ifdef _WIN32
388	int arg = 1;
389	if (ioctlsocket (TO_SOCKET (respipe [0]), FIONBIO, &arg)
390	|| ioctlsocket (TO_SOCKET (respipe [1]), FIONBIO, &arg))
391	#else
392	if (fcntl (respipe [0], F_SETFL, O_NONBLOCK)
393	|| fcntl (respipe [1], F_SETFL, O_NONBLOCK))
394	#endif
395	croak ("unable to initialize result pipe(3)");
396
397	respipe_osf [0] = TO_SOCKET (respipe [0]);
398	respipe_osf [1] = TO_SOCKET (respipe [1]);
399	}	678	}
400		679
401	static void poll_wait (void)	680	static void poll_wait (void)
402	{	681	{
403	fd_set rfd;
404
405	while (eio_nreqs ())	682	while (eio_nreqs ())
406	{	683	{
407	int size;	684	int size;
408		685
409	X_LOCK (reslock);	686	X_LOCK (reslock);
…		…
411	X_UNLOCK (reslock);	688	X_UNLOCK (reslock);
412		689
413	if (size)	690	if (size)
414	return;	691	return;
415		692
416	maybe_start_thread ();	693	etp_maybe_start_thread ();
417		694
418	FD_ZERO (&rfd);	695	s_epipe_wait (&respipe);
419	FD_SET (respipe [0], &rfd);
420
421	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
422	}	696	}
423	}	697	}
424		698
425	static int poll_cb (void)	699	static int poll_cb (void)
426	{	700	{
427	int res;	701	for (;;)
428
429	do
430	{	702	{
431	res = eio_poll ();	703	int res = eio_poll ();
432		704
433	if (res > 0)	705	if (res > 0)
434	croak (0);	706	croak (0);
		707
		708	if (!max_outstanding || max_outstanding > eio_nreqs ())
		709	return res;
		710
		711	poll_wait ();
435	}	712	}
436	while (max_outstanding && max_outstanding <= eio_nreqs ());
437
438	return res;
439	}	713	}
440		714
441	static void atfork_child (void)	715	static void atfork_child (void)
442	{	716	{
443	create_respipe ();	717	create_respipe ();
444	}	718	}
445		719
		720	/*****************************************************************************/
		721
		722	#if !_POSIX_MAPPED_FILES
		723	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		724	# define munmap(addr,length) (errno = ENOSYS, -1)
		725	#endif
		726
		727	#if !_POSIX_MEMORY_PROTECTION
		728	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		729	# define PROT_NONE 0
		730	# define PROT_WRITE 0
		731	# define MAP_PRIVATE 0
		732	# define MAP_SHARED 0
		733	# define MAP_FIXED 0
		734	#endif
		735
		736	#define MMAP_MAGIC PERL_MAGIC_ext
		737
		738	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
		739	{
		740	int old_errno = errno;
		741	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		742	errno = old_errno;
		743
		744	mg->mg_obj = 0; /* just in case */
		745
		746	SvREADONLY_off (sv);
		747
		748	if (SvPVX (sv) != mg->mg_ptr)
		749	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		750
		751	SvCUR_set (sv, 0);
		752	SvPVX (sv) = 0;
		753	SvOK_off (sv);
		754
		755	return 0;
		756	}
		757
		758	static MGVTBL mmap_vtbl = {
		759	0, 0, 0, 0, mmap_free
		760	};
		761
		762	/*****************************************************************************/
		763
		764	static SV * get_cb (SV *cb_sv)
		765	{
		766	SvGETMAGIC (cb_sv);
		767	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
		768	}
		769
446	#define dREQ \	770	#define dREQ \
		771	SV *cb_cv; \
447	aio_req req; \	772	aio_req req; \
448	int req_pri = next_pri; \	773	int req_pri = next_pri; \
449	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \	774	next_pri = EIO_PRI_DEFAULT; \
450	\	775	\
451	if (SvOK (callback) && !SvROK (callback)) \	776	cb_cv = get_cb (callback); \
452	croak ("callback must be undef or of reference type"); \
453	\	777	\
454	Newz (0, req, 1, eio_req); \	778	Newz (0, req, 1, eio_req); \
455	if (!req) \	779	if (!req) \
456	croak ("out of memory during eio_req allocation"); \	780	croak ("out of memory during eio_req allocation"); \
457	\	781	\
458	req->callback = newSVsv (callback); \	782	req->callback = SvREFCNT_inc (cb_cv); \
459	req->pri = req_pri	783	req->pri = req_pri
460		784
461	#define REQ_SEND \	785	#define REQ_SEND \
		786	PUTBACK; \
462	req_submit (req); \	787	req_submit (req); \
		788	SPAGAIN; \
463	\	789	\
464	if (GIMME_V != G_VOID) \	790	if (GIMME_V != G_VOID) \
465	XPUSHs (req_sv (req, AIO_REQ_KLASS));	791	XPUSHs (req_sv (req, aio_req_stash));
466		792
467	MODULE = IO::AIO PACKAGE = IO::AIO	793	MODULE = IO::AIO PACKAGE = IO::AIO
468		794
469	PROTOTYPES: ENABLE	795	PROTOTYPES: ENABLE
470		796
471	BOOT:	797	BOOT:
472	{	798	{
		799	static const struct {
		800	const char *name;
		801	IV iv;
		802	} *civ, const_iv[] = {
		803	# define const_niv(name, value) { # name, (IV) value },
		804	# define const_iv(name) { # name, (IV) name },
		805	# define const_eio(name) { # name, (IV) EIO_ ## name },
		806	const_iv (EXDEV)
		807	const_iv (ENOSYS)
		808	const_iv (O_RDONLY)
		809	const_iv (O_WRONLY)
		810	const_iv (O_RDWR)
		811	const_iv (O_CREAT)
		812	const_iv (O_TRUNC)
		813	const_iv (O_EXCL)
		814	const_iv (O_APPEND)
		815
		816	const_iv (O_ASYNC)
		817	const_iv (O_DIRECT)
		818	const_iv (O_NOATIME)
		819
		820	const_iv (O_CLOEXEC)
		821	const_iv (O_NOCTTY)
		822	const_iv (O_NOFOLLOW)
		823	const_iv (O_NONBLOCK)
		824	const_iv (O_EXEC)
		825	const_iv (O_SEARCH)
		826	const_iv (O_DIRECTORY)
		827	const_iv (O_DSYNC)
		828	const_iv (O_RSYNC)
		829	const_iv (O_SYNC)
		830	const_iv (O_TTY_INIT)
		831
		832	const_iv (S_IFIFO)
		833	const_iv (S_IFCHR)
		834	const_iv (S_IFBLK)
		835	const_iv (S_IFLNK)
		836	const_iv (S_IFREG)
		837	const_iv (S_IFDIR)
		838	const_iv (S_IFWHT)
		839	const_iv (S_IFSOCK)
		840	const_iv (S_IFMT)
		841
		842	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		843	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		844	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		845	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		846	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		847	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		848
		849	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		850	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		851	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		852	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		853	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		854
		855	const_iv (ST_RDONLY)
		856	const_iv (ST_NOSUID)
		857	const_iv (ST_NODEV)
		858	const_iv (ST_NOEXEC)
		859	const_iv (ST_SYNCHRONOUS)
		860	const_iv (ST_MANDLOCK)
		861	const_iv (ST_WRITE)
		862	const_iv (ST_APPEND)
		863	const_iv (ST_IMMUTABLE)
		864	const_iv (ST_NOATIME)
		865	const_iv (ST_NODIRATIME)
		866	const_iv (ST_RELATIME)
		867
		868	const_iv (PROT_NONE)
		869	const_iv (PROT_EXEC)
		870	const_iv (PROT_READ)
		871	const_iv (PROT_WRITE)
		872
		873	/*const_iv (MAP_FIXED)*/
		874	const_iv (MAP_PRIVATE)
		875	const_iv (MAP_SHARED)
		876	const_iv (MAP_ANONYMOUS)
		877
		878	/* linuxish */
		879	const_iv (MAP_HUGETLB)
		880	const_iv (MAP_LOCKED)
		881	const_iv (MAP_NORESERVE)
		882	const_iv (MAP_POPULATE)
		883	const_iv (MAP_NONBLOCK)
		884
		885	const_eio (MCL_FUTURE)
		886	const_eio (MCL_CURRENT)
		887
		888	const_eio (MS_ASYNC)
		889	const_eio (MS_INVALIDATE)
		890	const_eio (MS_SYNC)
		891
		892	const_eio (MT_MODIFY)
		893
		894	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		895	const_eio (SYNC_FILE_RANGE_WRITE)
		896	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		897
		898	const_eio (FALLOC_FL_KEEP_SIZE)
		899
		900	const_eio (READDIR_DENTS)
		901	const_eio (READDIR_DIRS_FIRST)
		902	const_eio (READDIR_STAT_ORDER)
		903	const_eio (READDIR_FOUND_UNKNOWN)
		904
		905	const_eio (DT_UNKNOWN)
		906	const_eio (DT_FIFO)
		907	const_eio (DT_CHR)
		908	const_eio (DT_DIR)
		909	const_eio (DT_BLK)
		910	const_eio (DT_REG)
		911	const_eio (DT_LNK)
		912	const_eio (DT_SOCK)
		913	const_eio (DT_WHT)
		914	};
		915
473	stash = gv_stashpv ("IO::AIO", 1);	916	aio_stash = gv_stashpv ("IO::AIO" , 1);
		917	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		918	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
474		919
475	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	920	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
476	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	921	newCONSTSUB (aio_stash, (char *)civ->name, newSViv (civ->iv));
477	newCONSTSUB (stash, "O_WRONLY", newSViv (O_WRONLY));
478	newCONSTSUB (stash, "O_CREAT", newSViv (O_CREAT));
479	newCONSTSUB (stash, "O_TRUNC", newSViv (O_TRUNC));
480	#ifdef _WIN32
481	X_MUTEX_CHECK (wrklock);
482	X_MUTEX_CHECK (reslock);
483	X_MUTEX_CHECK (reqlock);
484	X_MUTEX_CHECK (reqwait);
485	X_MUTEX_CHECK (preadwritelock);
486	X_MUTEX_CHECK (readdirlock);
487		922
488	X_COND_CHECK (reqwait);	923	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
489	#else
490	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
491	#endif
492		924
493	create_respipe ();	925	create_respipe ();
494		926
495	if (eio_init (want_poll, done_poll) < 0)	927	if (eio_init (want_poll, done_poll) < 0)
496	croak ("IO::AIO: unable to initialise eio library");	928	croak ("IO::AIO: unable to initialise eio library");
497		929
498	/* atfork child called in fifo order, so before eio's handler */	930	/* atfork child called in fifo order, so before eio's handler */
499	X_THREAD_ATFORK (0, 0, atfork_child);	931	X_THREAD_ATFORK (0, 0, atfork_child);
500	}	932	}
501		933
502	void	934	void
503	max_poll_reqs (int nreqs)	935	max_poll_reqs (unsigned int nreqs)
504	PROTOTYPE: $	936	PROTOTYPE: $
505	CODE:	937	CODE:
506	eio_set_max_poll_reqs (nreqs);	938	eio_set_max_poll_reqs (nreqs);
507		939
508	void	940	void
…		…
510	PROTOTYPE: $	942	PROTOTYPE: $
511	CODE:	943	CODE:
512	eio_set_max_poll_time (nseconds);	944	eio_set_max_poll_time (nseconds);
513		945
514	void	946	void
515	min_parallel (int nthreads)	947	min_parallel (unsigned int nthreads)
516	PROTOTYPE: $	948	PROTOTYPE: $
517	CODE:	949	CODE:
518	eio_set_min_parallel (nthreads);	950	eio_set_min_parallel (nthreads);
519		951
520	void	952	void
521	max_parallel (int nthreads)	953	max_parallel (unsigned int nthreads)
522	PROTOTYPE: $	954	PROTOTYPE: $
523	CODE:	955	CODE:
524	eio_set_max_parallel (nthreads);	956	eio_set_max_parallel (nthreads);
525		957
526	void	958	void
527	max_idle (int nthreads)	959	max_idle (unsigned int nthreads)
528	PROTOTYPE: $	960	PROTOTYPE: $
529	CODE:	961	CODE:
530	eio_set_max_idle (nthreads);	962	eio_set_max_idle (nthreads);
531		963
532	void	964	void
		965	idle_timeout (unsigned int seconds)
		966	PROTOTYPE: $
		967	CODE:
		968	eio_set_idle_timeout (seconds);
		969
		970	void
533	max_outstanding (int maxreqs)	971	max_outstanding (unsigned int maxreqs)
534	PROTOTYPE: $	972	PROTOTYPE: $
535	CODE:	973	CODE:
536	max_outstanding = maxreqs;	974	max_outstanding = maxreqs;
537		975
538	void	976	void
539	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	977	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
540	PROTOTYPE: $$$;$
541	PPCODE:	978	PPCODE:
542	{	979	{
543	dREQ;	980	dREQ;
544		981
545	req->type = EIO_OPEN;	982	req->type = EIO_OPEN;
…		…
551	REQ_SEND;	988	REQ_SEND;
552	}	989	}
553		990
554	void	991	void
555	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	992	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
556	PROTOTYPE: $;$
557	ALIAS:	993	ALIAS:
558	aio_fsync = EIO_FSYNC	994	aio_fsync = EIO_FSYNC
559	aio_fdatasync = EIO_FDATASYNC	995	aio_fdatasync = EIO_FDATASYNC
560	PPCODE:	996	PPCODE:
561	{	997	{
		998	int fd = s_fileno_croak (fh, 0);
562	dREQ;	999	dREQ;
563		1000
564	req->type = ix;	1001	req->type = ix;
565	req->sv1 = newSVsv (fh);	1002	req->sv1 = newSVsv (fh);
566	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1003	req->int1 = fd;
567		1004
568	REQ_SEND (req);	1005	REQ_SEND (req);
569	}	1006	}
570		1007
571	void	1008	void
		1009	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		1010	PPCODE:
		1011	{
		1012	int fd = s_fileno_croak (fh, 0);
		1013	dREQ;
		1014
		1015	req->type = EIO_SYNC_FILE_RANGE;
		1016	req->sv1 = newSVsv (fh);
		1017	req->int1 = fd;
		1018	req->offs = offset;
		1019	req->size = nbytes;
		1020	req->int2 = flags;
		1021
		1022	REQ_SEND (req);
		1023	}
		1024
		1025	void
		1026	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1027	PPCODE:
		1028	{
		1029	int fd = s_fileno_croak (fh, 0);
		1030	dREQ;
		1031
		1032	req->type = EIO_FALLOCATE;
		1033	req->sv1 = newSVsv (fh);
		1034	req->int1 = fd;
		1035	req->int2 = mode;
		1036	req->offs = offset;
		1037	req->size = len;
		1038
		1039	REQ_SEND (req);
		1040	}
		1041
		1042	void
572	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1043	aio_close (SV *fh, SV *callback=&PL_sv_undef)
573	PROTOTYPE: $;$
574	PPCODE:	1044	PPCODE:
575	{	1045	{
576	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1046	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1047	int fd = s_fileno_croak (fh, 0);
577	dREQ;	1048	dREQ;
578		1049
579	if (close_pipe < 0)	1050	if (expect_false (close_fd < 0))
580	{	1051	{
581	int pipefd [2];	1052	int pipefd [2];
582		1053
		1054	if (
		1055	#ifdef _WIN32
		1056	_pipe (pipefd, 1, _O_BINARY) < 0
		1057	#else
583	if (pipe (pipefd) < 0	1058	pipe (pipefd) < 0
584	|| close (pipefd [1]) < 0
585	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1059	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1060	#endif
		1061	|| close (pipefd [1]) < 0
		1062	)
586	abort (); /*D*/	1063	abort (); /*D*/
587		1064
588	close_pipe = pipefd [0];	1065	close_fd = pipefd [0];
589	}	1066	}
590		1067
591	req->type = EIO_DUP2;	1068	req->type = EIO_DUP2;
592	req->int1 = close_pipe;	1069	req->int1 = close_fd;
593	req->sv2 = newSVsv (fh);	1070	req->sv2 = newSVsv (fh);
594	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1071	req->int2 = fd;
595		1072
596	REQ_SEND (req);	1073	REQ_SEND (req);
597	}	1074	}
598		1075
599	void	1076	void
600	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1077	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
601	ALIAS:	1078	ALIAS:
602	aio_read = EIO_READ	1079	aio_read = EIO_READ
603	aio_write = EIO_WRITE	1080	aio_write = EIO_WRITE
604	PROTOTYPE: $$$$$;$
605	PPCODE:	1081	PPCODE:
606	{	1082	{
607	STRLEN svlen;	1083	STRLEN svlen;
		1084	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
608	char *svptr = SvPVbyte (data, svlen);	1085	char *svptr = SvPVbyte (data, svlen);
609	UV len = SvUV (length);	1086	UV len = SvUV (length);
610
611	SvUPGRADE (data, SVt_PV);
612	SvPOK_on (data);
613		1087
614	if (dataoffset < 0)	1088	if (dataoffset < 0)
615	dataoffset += svlen;	1089	dataoffset += svlen;
616		1090
617	if (dataoffset < 0 || dataoffset > svlen)	1091	if (dataoffset < 0 || dataoffset > svlen)
…		…
623	if (!SvOK (length) || len + dataoffset > svlen)	1097	if (!SvOK (length) || len + dataoffset > svlen)
624	len = svlen - dataoffset;	1098	len = svlen - dataoffset;
625	}	1099	}
626	else	1100	else
627	{	1101	{
628	/* read: grow scalar as necessary */	1102	/* read: check type and grow scalar as necessary */
		1103	SvUPGRADE (data, SVt_PV);
629	svptr = SvGROW (data, len + dataoffset + 1);	1104	svptr = SvGROW (data, len + dataoffset + 1);
630	}	1105	}
631		1106
632	if (len < 0)
633	croak ("length must not be negative");
634
635	{	1107	{
636	dREQ;	1108	dREQ;
637		1109
638	req->type = ix;	1110	req->type = ix;
639	req->sv1 = newSVsv (fh);	1111	req->sv1 = newSVsv (fh);
640	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1112	req->int1 = fd;
641	: IoOFP (sv_2io (fh)));
642	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1113	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
643	req->size = len;	1114	req->size = len;
644	req->sv2 = SvREFCNT_inc (data);	1115	req->sv2 = SvREFCNT_inc (data);
645	req->ptr2 = (char *)svptr + dataoffset;	1116	req->ptr2 = (char *)svptr + dataoffset;
646	req->stroffset = dataoffset;	1117	req->stroffset = dataoffset;
…		…
655	}	1126	}
656	}	1127	}
657		1128
658	void	1129	void
659	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1130	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
660	PROTOTYPE: $$;$	1131	ALIAS:
		1132	aio_readlink = EIO_READLINK
		1133	aio_realpath = EIO_REALPATH
661	PPCODE:	1134	PPCODE:
662	{	1135	{
663	SV *data;
664	dREQ;	1136	dREQ;
665		1137
666	data = newSV (NAME_MAX);
667	SvPOK_on (data);
668
669	req->type = EIO_READLINK;	1138	req->type = ix;
670	req->sv1 = newSVsv (path);	1139	req->sv1 = newSVsv (path);
671	req->ptr1 = SvPVbyte_nolen (req->sv1);	1140	req->ptr1 = SvPVbyte_nolen (req->sv1);
672	req->sv2 = data;
673	req->ptr2 = SvPVbyte_nolen (data);
674		1141
675	REQ_SEND;	1142	REQ_SEND;
676	}	1143	}
677		1144
678	void	1145	void
679	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1146	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
680	PROTOTYPE: $$$$;$
681	PPCODE:	1147	PPCODE:
682	{	1148	{
		1149	int ifd = s_fileno_croak (in_fh , 0);
		1150	int ofd = s_fileno_croak (out_fh, 1);
683	dREQ;	1151	dREQ;
684		1152
685	req->type = EIO_SENDFILE;	1153	req->type = EIO_SENDFILE;
686	req->sv1 = newSVsv (out_fh);	1154	req->sv1 = newSVsv (out_fh);
687	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1155	req->int1 = ofd;
688	req->sv2 = newSVsv (in_fh);	1156	req->sv2 = newSVsv (in_fh);
689	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1157	req->int2 = ifd;
690	req->offs = SvVAL64 (in_offset);	1158	req->offs = in_offset;
691	req->size = length;	1159	req->size = length;
692		1160
693	REQ_SEND;	1161	REQ_SEND;
694	}	1162	}
695		1163
696	void	1164	void
697	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1165	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
698	PROTOTYPE: $$$;$
699	PPCODE:	1166	PPCODE:
700	{	1167	{
		1168	int fd = s_fileno_croak (fh, 0);
701	dREQ;	1169	dREQ;
702		1170
703	req->type = EIO_READAHEAD;	1171	req->type = EIO_READAHEAD;
704	req->sv1 = newSVsv (fh);	1172	req->sv1 = newSVsv (fh);
705	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1173	req->int1 = fd;
706	req->offs = SvVAL64 (offset);	1174	req->offs = offset;
707	req->size = length;	1175	req->size = length;
708		1176
709	REQ_SEND;	1177	REQ_SEND;
710	}	1178	}
711		1179
712	void	1180	void
713	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1181	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
714	ALIAS:	1182	ALIAS:
715	aio_stat = EIO_STAT	1183	aio_stat = EIO_STAT
716	aio_lstat = EIO_LSTAT	1184	aio_lstat = EIO_LSTAT
		1185	aio_statvfs = EIO_STATVFS
717	PPCODE:	1186	PPCODE:
718	{	1187	{
719	dREQ;	1188	dREQ;
720		1189
721	req->ptr2 = malloc (sizeof (EIO_STRUCT_STAT));
722	if (!req->ptr2)
723	{
724	req_destroy (req);
725	croak ("out of memory during aio_stat statdata allocation");
726	}
727
728	req->flags |= EIO_FLAG_PTR2_FREE;
729	req->sv1 = newSVsv (fh_or_path);	1190	req->sv1 = newSVsv (fh_or_path);
730		1191
731	if (SvPOK (fh_or_path))	1192	if (SvPOK (req->sv1))
732	{	1193	{
733	req->type = ix;	1194	req->type = ix;
734	req->ptr1 = SvPVbyte_nolen (req->sv1);	1195	req->ptr1 = SvPVbyte_nolen (req->sv1);
735	}	1196	}
736	else	1197	else
737	{	1198	{
738	req->type = EIO_FSTAT;	1199	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
739	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1200	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
740	}	1201	}
741		1202
742	REQ_SEND;	1203	REQ_SEND;
743	}	1204	}
		1205
		1206	UV
		1207	major (UV dev)
		1208	ALIAS:
		1209	minor = 1
		1210	CODE:
		1211	RETVAL = ix ? major (dev) : minor (dev);
		1212	OUTPUT:
		1213	RETVAL
		1214
		1215	UV
		1216	makedev (UV maj, UV min)
		1217	CODE:
		1218	RETVAL = makedev (maj, min);
		1219	OUTPUT:
		1220	RETVAL
744		1221
745	void	1222	void
746	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1223	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
747	PPCODE:	1224	PPCODE:
748	{	1225	{
…		…
750		1227
751	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1228	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
752	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1229	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
753	req->sv1 = newSVsv (fh_or_path);	1230	req->sv1 = newSVsv (fh_or_path);
754		1231
755	if (SvPOK (fh_or_path))	1232	if (SvPOK (req->sv1))
756	{	1233	{
757	req->type = EIO_UTIME;	1234	req->type = EIO_UTIME;
758	req->ptr1 = SvPVbyte_nolen (req->sv1);	1235	req->ptr1 = SvPVbyte_nolen (req->sv1);
759	}	1236	}
760	else	1237	else
…		…
773	dREQ;	1250	dREQ;
774		1251
775	req->sv1 = newSVsv (fh_or_path);	1252	req->sv1 = newSVsv (fh_or_path);
776	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1253	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
777		1254
778	if (SvPOK (fh_or_path))	1255	if (SvPOK (req->sv1))
779	{	1256	{
780	req->type = EIO_TRUNCATE;	1257	req->type = EIO_TRUNCATE;
781	req->ptr1 = SvPVbyte_nolen (req->sv1);	1258	req->ptr1 = SvPVbyte_nolen (req->sv1);
782	}	1259	}
783	else	1260	else
…		…
791		1268
792	void	1269	void
793	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1270	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
794	ALIAS:	1271	ALIAS:
795	aio_chmod = EIO_CHMOD	1272	aio_chmod = EIO_CHMOD
796	aio_fchmod = EIO_FCHMOD
797	aio_mkdir = EIO_MKDIR	1273	aio_mkdir = EIO_MKDIR
798	PPCODE:	1274	PPCODE:
799	{	1275	{
800	dREQ;	1276	dREQ;
801		1277
802	req->type = ix;
803	req->int2 = mode;	1278	req->int2 = mode;
804	req->sv1 = newSVsv (fh_or_path);	1279	req->sv1 = newSVsv (fh_or_path);
805		1280
806	if (ix == EIO_FCHMOD)	1281	if (SvPOK (req->sv1))
807	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1282	{
		1283	req->type = ix;
		1284	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1285	}
808	else	1286	else
809	req->ptr1 = SvPVbyte_nolen (req->sv1);	1287	{
		1288	req->type = EIO_FCHMOD;
		1289	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1290	}
810		1291
811	REQ_SEND;	1292	REQ_SEND;
812	}	1293	}
813		1294
814	void	1295	void
…		…
819		1300
820	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1301	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
821	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1302	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
822	req->sv1 = newSVsv (fh_or_path);	1303	req->sv1 = newSVsv (fh_or_path);
823		1304
824	if (SvPOK (fh_or_path))	1305	if (SvPOK (req->sv1))
825	{	1306	{
826	req->type = EIO_CHOWN;	1307	req->type = EIO_CHOWN;
827	req->ptr1 = SvPVbyte_nolen (req->sv1);	1308	req->ptr1 = SvPVbyte_nolen (req->sv1);
828	}	1309	}
829	else	1310	else
…		…
834		1315
835	REQ_SEND;	1316	REQ_SEND;
836	}	1317	}
837		1318
838	void	1319	void
		1320	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1321	PPCODE:
		1322	{
		1323	dREQ;
		1324
		1325	req->type = EIO_READDIR;
		1326	req->sv1 = newSVsv (pathname);
		1327	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1328	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1329
		1330	if (flags & EIO_READDIR_DENTS)
		1331	req->int1 |= EIO_READDIR_CUSTOM2;
		1332
		1333	REQ_SEND;
		1334	}
		1335
		1336	void
839	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1337	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
840	ALIAS:	1338	ALIAS:
841	aio_unlink = EIO_UNLINK	1339	aio_unlink = EIO_UNLINK
842	aio_rmdir = EIO_RMDIR	1340	aio_rmdir = EIO_RMDIR
843	aio_readdir = EIO_READDIR	1341	aio_readdir = EIO_READDIR
…		…
885		1383
886	REQ_SEND;	1384	REQ_SEND;
887	}	1385	}
888		1386
889	void	1387	void
		1388	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1389	ALIAS:
		1390	aio_mtouch = EIO_MTOUCH
		1391	aio_msync = EIO_MSYNC
		1392	PPCODE:
		1393	{
		1394	STRLEN svlen;
		1395	char *svptr = SvPVbyte (data, svlen);
		1396	UV len = SvUV (length);
		1397
		1398	if (offset < 0)
		1399	offset += svlen;
		1400
		1401	if (offset < 0 || offset > svlen)
		1402	croak ("offset outside of scalar");
		1403
		1404	if (!SvOK (length) || len + offset > svlen)
		1405	len = svlen - offset;
		1406
		1407	{
		1408	dREQ;
		1409
		1410	req->type = ix;
		1411	req->sv2 = SvREFCNT_inc (data);
		1412	req->ptr2 = (char *)svptr + offset;
		1413	req->size = len;
		1414	req->int1 = flags;
		1415
		1416	REQ_SEND;
		1417	}
		1418	}
		1419
		1420	void
		1421	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1422	PPCODE:
		1423	{
		1424	STRLEN svlen;
		1425	char *svptr = SvPVbyte (data, svlen);
		1426	UV len = SvUV (length);
		1427
		1428	if (offset < 0)
		1429	offset += svlen;
		1430
		1431	if (offset < 0 || offset > svlen)
		1432	croak ("offset outside of scalar");
		1433
		1434	if (!SvOK (length) || len + offset > svlen)
		1435	len = svlen - offset;
		1436
		1437	{
		1438	dREQ;
		1439
		1440	req->type = EIO_MLOCK;
		1441	req->sv2 = SvREFCNT_inc (data);
		1442	req->ptr2 = (char *)svptr + offset;
		1443	req->size = len;
		1444
		1445	REQ_SEND;
		1446	}
		1447	}
		1448
		1449	void
		1450	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1451	PPCODE:
		1452	{
		1453	dREQ;
		1454
		1455	req->type = EIO_MLOCKALL;
		1456	req->int1 = flags;
		1457
		1458	REQ_SEND;
		1459	}
		1460
		1461	void
890	aio_busy (double delay, SV *callback=&PL_sv_undef)	1462	aio_busy (double delay, SV *callback=&PL_sv_undef)
891	PPCODE:	1463	PPCODE:
892	{	1464	{
893	dREQ;	1465	dREQ;
894		1466
…		…
898	REQ_SEND;	1470	REQ_SEND;
899	}	1471	}
900		1472
901	void	1473	void
902	aio_group (SV *callback=&PL_sv_undef)	1474	aio_group (SV *callback=&PL_sv_undef)
903	PROTOTYPE: ;$
904	PPCODE:	1475	PPCODE:
905	{	1476	{
906	dREQ;	1477	dREQ;
907		1478
908	req->type = EIO_GROUP;	1479	req->type = EIO_GROUP;
909		1480
910	eio_submit (req);	1481	req_submit (req);
911	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1482	XPUSHs (req_sv (req, aio_grp_stash));
912	}	1483	}
913		1484
914	void	1485	void
915	aio_nop (SV *callback=&PL_sv_undef)	1486	aio_nop (SV *callback=&PL_sv_undef)
916	ALIAS:	1487	ALIAS:
…		…
925	REQ_SEND;	1496	REQ_SEND;
926	}	1497	}
927		1498
928	int	1499	int
929	aioreq_pri (int pri = 0)	1500	aioreq_pri (int pri = 0)
930	PROTOTYPE: ;$
931	CODE:	1501	CODE:
932	RETVAL = next_pri - EIO_PRI_BIAS;	1502	RETVAL = next_pri;
933	if (items > 0)	1503	if (items > 0)
934	{	1504	{
935	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1505	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
936	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1506	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
937	next_pri = pri + EIO_PRI_BIAS;	1507	next_pri = pri;
938	}	1508	}
939	OUTPUT:	1509	OUTPUT:
940	RETVAL	1510	RETVAL
941		1511
942	void	1512	void
943	aioreq_nice (int nice = 0)	1513	aioreq_nice (int nice = 0)
944	CODE:	1514	CODE:
945	nice = next_pri - nice;	1515	nice = next_pri - nice;
946	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1516	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
947	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1517	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
948	next_pri = nice + EIO_PRI_BIAS;	1518	next_pri = nice;
949		1519
950	void	1520	void
951	flush ()	1521	flush ()
952	PROTOTYPE:
953	CODE:	1522	CODE:
954	while (eio_nreqs ())	1523	while (eio_nreqs ())
955	{	1524	{
956	poll_wait ();	1525	poll_wait ();
957	poll_cb ();	1526	poll_cb ();
958	}	1527	}
959		1528
960	int	1529	int
961	poll()	1530	poll ()
962	PROTOTYPE:
963	CODE:	1531	CODE:
964	poll_wait ();	1532	poll_wait ();
965	RETVAL = poll_cb ();	1533	RETVAL = poll_cb ();
966	OUTPUT:	1534	OUTPUT:
967	RETVAL	1535	RETVAL
968		1536
969	int	1537	int
970	poll_fileno()	1538	poll_fileno ()
971	PROTOTYPE:
972	CODE:	1539	CODE:
973	RETVAL = respipe [0];	1540	RETVAL = s_epipe_fd (&respipe);
974	OUTPUT:	1541	OUTPUT:
975	RETVAL	1542	RETVAL
976		1543
977	int	1544	int
978	poll_cb(...)	1545	poll_cb (...)
979	PROTOTYPE:	1546	PROTOTYPE:
980	CODE:	1547	CODE:
981	RETVAL = poll_cb ();	1548	RETVAL = poll_cb ();
982	OUTPUT:	1549	OUTPUT:
983	RETVAL	1550	RETVAL
984		1551
985	void	1552	void
986	poll_wait()	1553	poll_wait ()
987	PROTOTYPE:
988	CODE:	1554	CODE:
989	poll_wait ();	1555	poll_wait ();
990		1556
991	int	1557	int
992	nreqs()	1558	nreqs ()
993	PROTOTYPE:
994	CODE:	1559	CODE:
995	RETVAL = eio_nreqs ();	1560	RETVAL = eio_nreqs ();
996	OUTPUT:	1561	OUTPUT:
997	RETVAL	1562	RETVAL
998		1563
999	int	1564	int
1000	nready()	1565	nready ()
1001	PROTOTYPE:
1002	CODE:	1566	CODE:
1003	RETVAL = eio_nready ();	1567	RETVAL = eio_nready ();
1004	OUTPUT:	1568	OUTPUT:
1005	RETVAL	1569	RETVAL
1006		1570
1007	int	1571	int
1008	npending()	1572	npending ()
1009	PROTOTYPE:
1010	CODE:	1573	CODE:
1011	RETVAL = eio_npending ();	1574	RETVAL = eio_npending ();
1012	OUTPUT:	1575	OUTPUT:
1013	RETVAL	1576	RETVAL
1014		1577
1015	int	1578	int
1016	nthreads()	1579	nthreads ()
1017	PROTOTYPE:
1018	CODE:	1580	CODE:
1019	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1581	RETVAL = eio_nthreads ();
1020	RETVAL = started;
1021	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1022	OUTPUT:	1582	OUTPUT:
1023	RETVAL	1583	RETVAL
		1584
		1585	int
		1586	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1587	CODE:
		1588	RETVAL = posix_fadvise (fh, offset, length, advice);
		1589	OUTPUT:
		1590	RETVAL
		1591
		1592	ssize_t
		1593	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1594	CODE:
		1595	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1596	OUTPUT:
		1597	RETVAL
		1598
		1599	void
		1600	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1601	PPCODE:
		1602	sv_unmagic (scalar, MMAP_MAGIC);
		1603	{
		1604	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1605	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1606	if (addr == (void *)-1)
		1607	XSRETURN_NO;
		1608
		1609	sv_force_normal (scalar);
		1610
		1611	/* we store the length in mg_obj, as namlen is I32 :/ */
		1612	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1613	->mg_obj = (SV *)length;
		1614
		1615	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1616
		1617	if (!(prot & PROT_WRITE))
		1618	SvREADONLY_on (scalar);
		1619
		1620	if (SvLEN (scalar))
		1621	Safefree (SvPVX (scalar));
		1622
		1623	SvPVX (scalar) = (char *)addr;
		1624	SvCUR_set (scalar, length);
		1625	SvLEN_set (scalar, 0);
		1626	SvPOK_only (scalar);
		1627
		1628	XSRETURN_YES;
		1629	}
		1630
		1631	void
		1632	munmap (SV *scalar)
		1633	CODE:
		1634	sv_unmagic (scalar, MMAP_MAGIC);
		1635
		1636	int
		1637	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1638	ALIAS:
		1639	mprotect = 1
		1640	CODE:
		1641	{
		1642	STRLEN svlen;
		1643	void *addr = SvPVbyte (scalar, svlen);
		1644	size_t len = SvUV (length);
		1645
		1646	if (offset < 0)
		1647	offset += svlen;
		1648
		1649	if (offset < 0 || offset > svlen)
		1650	croak ("offset outside of scalar");
		1651
		1652	if (!SvOK (length) || len + offset > svlen)
		1653	len = svlen - offset;
		1654
		1655	addr = (void *)(((intptr_t)addr) + offset);
		1656	eio_page_align (&addr, &len);
		1657
		1658	switch (ix)
		1659	{
		1660	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1661	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1662	}
		1663	}
		1664	OUTPUT:
		1665	RETVAL
		1666
		1667	int
		1668	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1669	CODE:
		1670	{
		1671	STRLEN svlen;
		1672	void *addr = SvPVbyte (scalar, svlen);
		1673	size_t len = SvUV (length);
		1674
		1675	if (offset < 0)
		1676	offset += svlen;
		1677
		1678	if (offset < 0 || offset > svlen)
		1679	croak ("offset outside of scalar");
		1680
		1681	if (!SvOK (length) || len + offset > svlen)
		1682	len = svlen - offset;
		1683
		1684	addr = (void *)(((intptr_t)addr) + offset);
		1685	eio_page_align (&addr, &len);
		1686	#if _POSIX_MEMLOCK_RANGE
		1687	RETVAL = munlock (addr, len);
		1688	#else
		1689	RETVAL = ((errno = ENOSYS), -1);
		1690	#endif
		1691	}
		1692	OUTPUT:
		1693	RETVAL
		1694
		1695	int
		1696	munlockall ()
		1697	CODE:
		1698	#if _POSIX_MEMLOCK
		1699	munlockall ();
		1700	#else
		1701	RETVAL = -1;
		1702	errno = ENOSYS;
		1703	#endif
		1704	OUTPUT:
		1705	RETVAL
1024		1706
1025	void _on_next_submit (SV *cb)	1707	void _on_next_submit (SV *cb)
1026	CODE:	1708	CODE:
1027	SvREFCNT_dec (on_next_submit);	1709	SvREFCNT_dec (on_next_submit);
1028	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1710	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1036	CODE:	1718	CODE:
1037	eio_cancel (req);	1719	eio_cancel (req);
1038		1720
1039	void	1721	void
1040	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1722	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1041	CODE:	1723	PPCODE:
		1724	{
		1725	if (GIMME_V != G_VOID)
		1726	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1727
		1728	if (items > 1)
		1729	{
		1730	SV *cb_cv =get_cb (callback);
		1731
1042	SvREFCNT_dec (req->callback);	1732	SvREFCNT_dec (req->callback);
1043	req->callback = newSVsv (callback);	1733	req->callback = SvREFCNT_inc (cb_cv);
		1734	}
		1735	}
1044		1736
1045	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1737	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1046		1738
1047	void	1739	void
1048	add (aio_req grp, ...)	1740	add (aio_req grp, ...)
…		…
1080	AV *av;	1772	AV *av;
1081		1773
1082	grp->errorno = errno;	1774	grp->errorno = errno;
1083		1775
1084	av = newAV ();	1776	av = newAV ();
		1777	av_extend (av, items - 1);
1085		1778
1086	for (i = 1; i < items; ++i )	1779	for (i = 1; i < items; ++i )
1087	av_push (av, newSVsv (ST (i)));	1780	av_push (av, newSVsv (ST (i)));
1088		1781
1089	SvREFCNT_dec (grp->sv1);	1782	SvREFCNT_dec (grp->sv1);
…		…
1103	void	1796	void
1104	feed (aio_req grp, SV *callback=&PL_sv_undef)	1797	feed (aio_req grp, SV *callback=&PL_sv_undef)
1105	CODE:	1798	CODE:
1106	{	1799	{
1107	SvREFCNT_dec (grp->sv2);	1800	SvREFCNT_dec (grp->sv2);
1108	grp->sv2 = newSVsv (callback);	1801	grp->sv2 = newSVsv (callback);
		1802	grp->feed = aio_grp_feed;
1109		1803
1110	if (grp->int2 <= 0)	1804	if (grp->int2 <= 0)
1111	grp->int2 = 2;	1805	grp->int2 = 2;
1112		1806
1113	eio_grp_limit (grp, grp->int2);	1807	eio_grp_limit (grp, grp->int2);

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