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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 1.189 by root, Mon Jul 18 01:27:03 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
21	# undef malloc
22	# undef free
23
24	// perl overrides all those nice win32 functions	35	// perl overrides all those nice libc functions
		36
		37	#undef malloc
		38	#undef free
25	# undef open	39	#undef open
26	# undef read	40	#undef read
27	# undef write	41	#undef write
28	# undef send	42	#undef send
29	# undef recv	43	#undef recv
30	# undef stat	44	#undef stat
		45	#undef lstat
31	# undef fstat	46	#undef fstat
32	# define lstat stat
33	# undef truncate	47	#undef truncate
34	# undef ftruncate	48	#undef ftruncate
35	# undef open	49	#undef open
		50	#undef link
36	# undef close	51	#undef close
37	# undef unlink	52	#undef unlink
		53	#undef mkdir
38	# undef rmdir	54	#undef rmdir
39	# undef rename	55	#undef rename
40	# undef lseek	56	#undef lseek
41		57	#undef opendir
42	# define chown(a,b,c) (errno = ENOSYS, -1)	58	#undef readdir
43	# define fchown(a,b,c) (errno = ENOSYS, -1)	59	#undef closedir
44	# define fchmod(a,b) (errno = ENOSYS, -1)	60	#undef chmod
45	# define symlink(a,b) (errno = ENOSYS, -1)	61	#undef fchmod
46	# define readlink(a,b,c) (errno = ENOSYS, -1)	62	#undef dup
47	# define mknod(a,b,c) (errno = ENOSYS, -1)	63	#undef dup2
48	# define truncate(a,b) (errno = ENOSYS, -1)	64	#undef abort
49	# define ftruncate(fd,o) chsize ((fd), (o))	65	#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		66
56	#else	67	#else
57		68
58	# include <sys/time.h>	69	#include <sys/time.h>
59	# include <sys/select.h>	70	#include <sys/select.h>
60	# include <unistd.h>	71	#include <unistd.h>
61	# include <utime.h>	72	#include <utime.h>
62	# include <signal.h>	73	#include <signal.h>
63	# define EIO_STRUCT_DIRENT struct dirent
64		74
65	#endif	75	#endif
66		76
67	#define EIO_STRUCT_STAT Stat_t	77	#define EIO_STRUCT_STAT Stat_t
68		78
69	/* use NV for 32 bit perls as it allows larger offsets */	79	/* use NV for 32 bit perls as it allows larger offsets */
70	#if IVSIZE >= 8	80	#if IVSIZE >= 8
		81	# define VAL64 IV
71	# define SvVAL64 SvIV	82	# define SvVAL64 SvIV
		83	# define newSVval64 newSViv
72	#else	84	#else
		85	# define VAL64 NV
73	# define SvVAL64 SvNV	86	# define SvVAL64 SvNV
		87	# define newSVval64 newSVnv
74	#endif	88	#endif
75		89
76	static HV *stash;	90	/*****************************************************************************/
		91
		92	#if __GNUC__ >= 3
		93	# define expect(expr,value) __builtin_expect ((expr),(value))
		94	#else
		95	# define expect(expr,value) (expr)
		96	#endif
		97
		98	#define expect_false(expr) expect ((expr) != 0, 0)
		99	#define expect_true(expr) expect ((expr) != 0, 1)
		100
		101	/*****************************************************************************/
		102
77	typedef SV SV8; /* byte-sv, used for argument-checking */	103	typedef SV SV8; /* byte-sv, used for argument-checking */
		104	typedef int aio_rfd; /* read file desriptor */
		105	typedef int aio_wfd; /* write file descriptor */
78		106
79	#define AIO_REQ_KLASS "IO::AIO::REQ"	107	static HV *aio_stash, *aio_req_stash, *aio_grp_stash;
80	#define AIO_GRP_KLASS "IO::AIO::GRP"
81		108
82	#define EIO_COMMON \	109	#define EIO_REQ_MEMBERS \
83	SV *callback; \	110	SV *callback; \
84	SV *sv1, *sv2; \	111	SV *sv1, *sv2; \
85	STRLEN stroffset; \	112	STRLEN stroffset; \
86	SV *self	113	SV *self;
87		114
		115	#define EIO_NO_WRAPPERS 1
		116
		117	#include "libeio/config.h"
88	#include "libeio/eio.h"	118	#include "libeio/eio.h"
89		119
90	static int req_invoke (eio_req *req);	120	static int req_invoke (eio_req *req);
91	#define EIO_FINISH(req) req_invoke (req)	121	#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);	122	static void req_destroy (eio_req *grp);
95	#define EIO_DESTROY(req) req_destroy (req)	123	#define EIO_DESTROY(req) req_destroy (req)
		124
		125	#include "libeio/eio.c"
		126
		127	/* Linux/others */
		128	#ifndef O_ASYNC
		129	# define O_ASYNC 0
		130	#endif
		131	#ifndef O_DIRECT
		132	# define O_DIRECT 0
		133	#endif
		134	#ifndef O_NOATIME
		135	# define O_NOATIME 0
		136	#endif
		137
		138	/* POSIX */
		139	#ifndef O_CLOEXEC
		140	# define O_CLOEXEC 0
		141	#endif
		142	#ifndef O_NOFOLLOW
		143	# define O_NOFOLLOW 0
		144	#endif
		145	#ifndef O_NOCTTY
		146	# define O_NOCTTY 0
		147	#endif
		148	#ifndef O_NONBLOCK
		149	# define O_NONBLOCK 0
		150	#endif
		151	#ifndef O_EXEC
		152	# define O_EXEC 0
		153	#endif
		154	#ifndef O_SEARCH
		155	# define O_SEARCH 0
		156	#endif
		157	#ifndef O_DIRECTORY
		158	# define O_DIRECTORY 0
		159	#endif
		160	#ifndef O_DSYNC
		161	# define O_DSYNC 0
		162	#endif
		163	#ifndef O_RSYNC
		164	# define O_RSYNC 0
		165	#endif
		166	#ifndef O_SYNC
		167	# define O_SYNC 0
		168	#endif
		169	#ifndef O_TTY_INIT
		170	# define O_TTY_INIT 0
		171	#endif
		172
		173	#ifndef POSIX_FADV_NORMAL
		174	# define POSIX_FADV_NORMAL 0
		175	#endif
		176	#ifndef POSIX_FADV_SEQUENTIAL
		177	# define POSIX_FADV_SEQUENTIAL 0
		178	#endif
		179	#ifndef POSIX_FADV_RANDOM
		180	# define POSIX_FADV_RANDOM 0
		181	#endif
		182	#ifndef POSIX_FADV_NOREUSE
		183	# define POSIX_FADV_NOREUSE 0
		184	#endif
		185	#ifndef POSIX_FADV_WILLNEED
		186	# define POSIX_FADV_WILLNEED 0
		187	#endif
		188	#ifndef POSIX_FADV_DONTNEED
		189	# define POSIX_FADV_DONTNEED 0
		190	#endif
		191
		192	#if !HAVE_POSIX_FADVISE
		193	# define posix_fadvise(a,b,c,d) errno = ENOSYS /* also return ENOSYS */
		194	#endif
		195
		196	#ifndef POSIX_MADV_NORMAL
		197	# define POSIX_MADV_NORMAL 0
		198	#endif
		199	#ifndef POSIX_MADV_SEQUENTIAL
		200	# define POSIX_MADV_SEQUENTIAL 0
		201	#endif
		202	#ifndef POSIX_MADV_RANDOM
		203	# define POSIX_MADV_RANDOM 0
		204	#endif
		205	#ifndef POSIX_MADV_WILLNEED
		206	# define POSIX_MADV_WILLNEED 0
		207	#endif
		208	#ifndef POSIX_MADV_DONTNEED
		209	# define POSIX_MADV_DONTNEED 0
		210	#endif
		211
		212	#if !HAVE_POSIX_MADVISE
		213	# define posix_madvise(a,b,c) errno = ENOSYS /* also return ENOSYS */
		214	#endif
		215
		216	#ifndef PROT_NONE
		217	# define PROT_NONE 0
		218	#endif
		219	#ifndef PROT_READ
		220	# define PROT_READ 0
		221	#endif
		222	#ifndef PROT_WRITE
		223	# define PROT_READ 0
		224	#endif
		225	#ifndef PROT_EXEC
		226	# define PROT_EXEC 0
		227	#endif
		228
		229	#ifndef ST_RDONLY
		230	# define ST_RDONLY 0
		231	#endif
		232	#ifndef ST_NOSUID
		233	# define ST_NOSUID 0
		234	#endif
		235	#ifndef ST_NODEV
		236	# define ST_NODEV 0
		237	#endif
		238	#ifndef ST_NOEXEC
		239	# define ST_NOEXEC 0
		240	#endif
		241	#ifndef ST_SYNCHRONOUS
		242	# define ST_SYNCHRONOUS 0
		243	#endif
		244	#ifndef ST_MANDLOCK
		245	# define ST_MANDLOCK 0
		246	#endif
		247	#ifndef ST_WRITE
		248	# define ST_WRITE 0
		249	#endif
		250	#ifndef ST_APPEND
		251	# define ST_APPEND 0
		252	#endif
		253	#ifndef ST_IMMUTABLE
		254	# define ST_IMMUTABLE 0
		255	#endif
		256	#ifndef ST_NOATIME
		257	# define ST_NOATIME 0
		258	#endif
		259	#ifndef ST_NODIRATIME
		260	# define ST_NODIRATIME 0
		261	#endif
		262	#ifndef ST_RELATIME
		263	# define ST_RELATIME 0
		264	#endif
		265
		266	#ifndef S_IFIFO
		267	# define S_IFIFO 0
		268	#endif
		269	#ifndef S_IFCHR
		270	# define S_IFCHR 0
		271	#endif
		272	#ifndef S_IFBLK
		273	# define S_IFBLK 0
		274	#endif
		275	#ifndef S_IFLNK
		276	# define S_IFLNK 0
		277	#endif
		278	#ifndef S_IFREG
		279	# define S_IFREG 0
		280	#endif
		281	#ifndef S_IFDIR
		282	# define S_IFDIR 0
		283	#endif
		284	#ifndef S_IFWHT
		285	# define S_IFWHT 0
		286	#endif
		287	#ifndef S_IFSOCK
		288	# define S_IFSOCK 0
		289	#endif
		290
		291	#ifndef MAP_ANONYMOUS
		292	# ifdef MAP_ANON
		293	# define MAP_ANONYMOUS MAP_ANON
		294	# else
		295	# define MAP_ANONYMOUS MAP_FIXED /* and hope this fails */
		296	# endif
		297	#endif
		298	#ifndef MAP_HUGETLB
		299	# define MAP_HUGETLB 0
		300	#endif
		301	#ifndef MAP_LOCKED
		302	# define MAP_LOCKED 0
		303	#endif
		304	#ifndef MAP_NORESERVE
		305	# define MAP_NORESERVE 0
		306	#endif
		307	#ifndef MAP_POPULATE
		308	# define MAP_POPULATE 0
		309	#endif
		310	#ifndef MAP_NONBLOCK
		311	# define MAP_NONBLOCK 0
		312	#endif
		313
		314	#ifndef makedev
		315	# define makedev(maj,min) (((maj) << 8) | (min))
		316	#endif
		317	#ifndef major
		318	# define major(dev) ((dev) >> 8)
		319	#endif
		320	#ifndef minor
		321	# define minor(dev) ((dev) & 0xff)
		322	#endif
		323
		324	#ifndef PAGESIZE
		325	# define PAGESIZE sysconf (_SC_PAGESIZE)
		326	#endif
96		327
97	enum {	328	enum {
98	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */	329	FLAG_SV2_RO_OFF = 0x40, /* data was set readonly */
99	};	330	};
100		331
101	#include "libeio/eio.c"
102
103	typedef eio_req *aio_req;	332	typedef eio_req *aio_req;
104	typedef eio_req *aio_req_ornot;	333	typedef eio_req *aio_req_ornot;
105		334
106	static SV *on_next_submit;	335	static SV *on_next_submit;
107	static int next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS;	336	static int next_pri = EIO_PRI_DEFAULT;
108	static int max_outstanding;	337	static int max_outstanding;
109		338
110	static int respipe_osf [2], respipe [2] = { -1, -1 };	339	static s_epipe respipe;
111		340
112	static void req_destroy (aio_req req);	341	static void req_destroy (aio_req req);
113	static void req_cancel (aio_req req);	342	static void req_cancel (aio_req req);
114		343
115	static void want_poll (void)	344	static void want_poll (void)
116	{	345	{
117	/* write a dummy byte to the pipe so fh becomes ready */	346	/* write a dummy byte to the pipe so fh becomes ready */
118	respipe_write (respipe_osf [1], (const void *)&respipe_osf, 1);	347	s_epipe_signal (&respipe);
119	}	348	}
120		349
121	static void done_poll (void)	350	static void done_poll (void)
122	{	351	{
123	/* read any signals sent by the worker threads */	352	/* read any signals sent by the worker threads */
124	char buf [4];	353	s_epipe_drain (&respipe);
125	while (respipe_read (respipe [0], buf, 4) == 4)
126	;
127	}	354	}
128		355
129	/* must be called at most once */	356	/* must be called at most once */
130	static SV *req_sv (aio_req req, const char *klass)	357	static SV *req_sv (aio_req req, HV *stash)
131	{	358	{
132	if (!req->self)	359	if (!req->self)
133	{	360	{
134	req->self = (SV *)newHV ();	361	req->self = (SV *)newHV ();
135	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);	362	sv_magic (req->self, 0, PERL_MAGIC_ext, (char *)req, 0);
136	}	363	}
137		364
138	return sv_2mortal (sv_bless (newRV_inc (req->self), gv_stashpv (klass, 1)));	365	return sv_2mortal (sv_bless (newRV_inc (req->self), stash));
139	}	366	}
140		367
141	static aio_req SvAIO_REQ (SV *sv)	368	static aio_req SvAIO_REQ (SV *sv)
142	{	369	{
143	MAGIC *mg;	370	MAGIC *mg;
144		371
145	if (!sv_derived_from (sv, AIO_REQ_KLASS) || !SvROK (sv))	372	if (!SvROK (sv)
		373	|| (SvSTASH (SvRV (sv)) != aio_grp_stash
		374	&& SvSTASH (SvRV (sv)) != aio_req_stash
		375	&& !sv_derived_from (sv, "IO::AIO::REQ")))
146	croak ("object of class " AIO_REQ_KLASS " expected");	376	croak ("object of class IO::AIO::REQ expected");
147		377
148	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);	378	mg = mg_find (SvRV (sv), PERL_MAGIC_ext);
149		379
150	return mg ? (aio_req)mg->mg_ptr : 0;	380	return mg ? (aio_req)mg->mg_ptr : 0;
151	}	381	}
…		…
157	dSP;	387	dSP;
158		388
159	ENTER;	389	ENTER;
160	SAVETMPS;	390	SAVETMPS;
161	PUSHMARK (SP);	391	PUSHMARK (SP);
162	XPUSHs (req_sv (grp, AIO_GRP_KLASS));	392	XPUSHs (req_sv (grp, aio_grp_stash));
163	PUTBACK;	393	PUTBACK;
164	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);	394	call_sv (grp->sv2, G_VOID | G_EVAL | G_KEEPERR);
165	SPAGAIN;	395	SPAGAIN;
166	FREETMPS;	396	FREETMPS;
167	LEAVE;	397	LEAVE;
…		…
170		400
171	static void req_submit (eio_req *req)	401	static void req_submit (eio_req *req)
172	{	402	{
173	eio_submit (req);	403	eio_submit (req);
174		404
175	if (on_next_submit)	405	if (expect_false (on_next_submit))
176	{	406	{
177	dSP;	407	dSP;
178	SV *cb = sv_2mortal (on_next_submit);	408	SV *cb = sv_2mortal (on_next_submit);
179		409
180	on_next_submit = 0;	410	on_next_submit = 0;
…		…
185	}	415	}
186	}	416	}
187		417
188	static int req_invoke (eio_req *req)	418	static int req_invoke (eio_req *req)
189	{	419	{
190	dSP;
191
192	if (req->flags & FLAG_SV2_RO_OFF)	420	if (req->flags & FLAG_SV2_RO_OFF)
193	SvREADONLY_off (req->sv2);	421	SvREADONLY_off (req->sv2);
194		422
195	if (!EIO_CANCELLED (req) && SvOK (req->callback))	423	if (!EIO_CANCELLED (req) && req->callback)
196	{	424	{
		425	dSP;
		426	static SV *sv_result_cache; /* caches the result integer SV */
		427	SV *sv_result;
		428
197	ENTER;	429	ENTER;
198	SAVETMPS;	430	SAVETMPS;
199	PUSHMARK (SP);	431	PUSHMARK (SP);
200	EXTEND (SP, 1);	432	EXTEND (SP, 1);
		433
		434	/* do not recreate the result IV from scratch each time */
		435	if (expect_true (sv_result_cache))
		436	{
		437	sv_result = sv_result_cache; sv_result_cache = 0;
		438	SvIV_set (sv_result, req->result);
		439	SvIOK_only (sv_result);
		440	}
		441	else
		442	{
		443	sv_result = newSViv (req->result);
		444	SvREADONLY_on (sv_result);
		445	}
201		446
202	switch (req->type)	447	switch (req->type)
203	{	448	{
204	case EIO_READDIR:	449	case EIO_READDIR:
205	{	450	{
206	SV *rv = &PL_sv_undef;	451	SV *rv = &PL_sv_undef;
207		452
208	if (req->result >= 0)	453	if (req->result >= 0)
209	{	454	{
210	int i;	455	int i;
211	char *buf = req->ptr2;	456	char *names = (char *)req->ptr2;
		457	eio_dirent *ent = (eio_dirent *)req->ptr1; /* might be 0 */
212	AV *av = newAV ();	458	AV *av = newAV ();
213		459
214	av_extend (av, req->result - 1);	460	av_extend (av, req->result - 1);
215		461
216	for (i = 0; i < req->result; ++i)	462	for (i = 0; i < req->result; ++i)
217	{	463	{
218	SV *sv = newSVpv (buf, 0);	464	if (req->int1 & EIO_READDIR_DENTS)
		465	{
		466	SV *namesv = newSVpvn (names + ent->nameofs, ent->namelen);
219		467
		468	if (req->int1 & EIO_READDIR_CUSTOM2)
		469	{
		470	static SV *sv_type [EIO_DT_MAX + 1]; /* type sv cache */
		471	AV *avent = newAV ();
		472
		473	av_extend (avent, 2);
		474
		475	if (!sv_type [ent->type])
		476	{
		477	sv_type [ent->type] = newSViv (ent->type);
		478	SvREADONLY_on (sv_type [ent->type]);
		479	}
		480
		481	av_store (avent, 0, namesv);
		482	av_store (avent, 1, SvREFCNT_inc (sv_type [ent->type]));
		483	av_store (avent, 2, IVSIZE >= 8 ? newSVuv (ent->inode) : newSVnv (ent->inode));
		484
		485	av_store (av, i, newRV_noinc ((SV *)avent));
		486	}
		487	else
220	av_store (av, i, sv);	488	av_store (av, i, namesv);
		489
		490	++ent;
		491	}
		492	else
		493	{
		494	SV *name = newSVpv (names, 0);
		495	av_store (av, i, name);
221	buf += SvCUR (sv) + 1;	496	names += SvCUR (name) + 1;
		497	}
222	}	498	}
223		499
224	rv = sv_2mortal (newRV_noinc ((SV *)av));	500	rv = sv_2mortal (newRV_noinc ((SV *)av));
225	}	501	}
226		502
227	PUSHs (rv);	503	PUSHs (rv);
		504
		505	if (req->int1 & EIO_READDIR_CUSTOM1)
		506	XPUSHs (sv_2mortal (newSViv (req->int1 & ~(EIO_READDIR_CUSTOM1 | EIO_READDIR_CUSTOM2))));
228	}	507	}
229	break;	508	break;
230		509
231	case EIO_OPEN:	510	case EIO_OPEN:
232	{	511	{
…		…
238	GV *gv = (GV *)sv_newmortal ();	517	GV *gv = (GV *)sv_newmortal ();
239	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);	518	int flags = req->int1 & (O_RDONLY | O_WRONLY | O_RDWR);
240	char sym [64];	519	char sym [64];
241	int symlen;	520	int symlen;
242		521
243	symlen = snprintf (sym, sizeof (sym), "fd#%d", req->result);	522	symlen = snprintf (sym, sizeof (sym), "fd#%d", (int)req->result);
244	gv_init (gv, stash, sym, symlen, 0);	523	gv_init (gv, aio_stash, sym, symlen, 0);
245		524
246	symlen = snprintf (	525	symlen = snprintf (
247	sym,	526	sym,
248	sizeof (sym),	527	sizeof (sym),
249	"%s&=%d",	528	"%s&=%d",
250	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",	529	flags == O_RDONLY ? "<" : flags == O_WRONLY ? ">" : "+<",
251	req->result	530	(int)req->result
252	);	531	);
253		532
254	if (do_open (gv, sym, symlen, 0, 0, 0, 0))	533	if (do_open (gv, sym, symlen, 0, 0, 0, 0))
255	fh = (SV *)gv;	534	fh = (SV *)gv;
256	}	535	}
257		536
258	PUSHs (fh);	537	PUSHs (fh);
259	}	538	}
		539	break;
		540
		541	case EIO_STATVFS:
		542	case EIO_FSTATVFS:
		543	{
		544	SV *rv = &PL_sv_undef;
		545
		546	#ifndef _WIN32
		547	if (req->result >= 0)
		548	{
		549	EIO_STRUCT_STATVFS *f = EIO_STATVFS_BUF (req);
		550	HV *hv = newHV ();
		551
		552	rv = sv_2mortal (newRV_noinc ((SV *)hv));
		553
		554	hv_store (hv, "bsize" , sizeof ("bsize" ) - 1, newSVval64 (f->f_bsize ), 0);
		555	hv_store (hv, "frsize" , sizeof ("frsize" ) - 1, newSVval64 (f->f_frsize ), 0);
		556	hv_store (hv, "blocks" , sizeof ("blocks" ) - 1, newSVval64 (f->f_blocks ), 0);
		557	hv_store (hv, "bfree" , sizeof ("bfree" ) - 1, newSVval64 (f->f_bfree ), 0);
		558	hv_store (hv, "bavail" , sizeof ("bavail" ) - 1, newSVval64 (f->f_bavail ), 0);
		559	hv_store (hv, "files" , sizeof ("files" ) - 1, newSVval64 (f->f_files ), 0);
		560	hv_store (hv, "ffree" , sizeof ("ffree" ) - 1, newSVval64 (f->f_ffree ), 0);
		561	hv_store (hv, "favail" , sizeof ("favail" ) - 1, newSVval64 (f->f_favail ), 0);
		562	hv_store (hv, "fsid" , sizeof ("fsid" ) - 1, newSVval64 (f->f_fsid ), 0);
		563	hv_store (hv, "flag" , sizeof ("flag" ) - 1, newSVval64 (f->f_flag ), 0);
		564	hv_store (hv, "namemax", sizeof ("namemax") - 1, newSVval64 (f->f_namemax), 0);
		565	}
		566	#endif
		567
		568	PUSHs (rv);
		569	}
		570
260	break;	571	break;
261		572
262	case EIO_GROUP:	573	case EIO_GROUP:
263	req->int1 = 2; /* mark group as finished */	574	req->int1 = 2; /* mark group as finished */
264		575
…		…
276	case EIO_NOP:	587	case EIO_NOP:
277	case EIO_BUSY:	588	case EIO_BUSY:
278	break;	589	break;
279		590
280	case EIO_READLINK:	591	case EIO_READLINK:
		592	case EIO_REALPATH:
281	if (req->result > 0)	593	if (req->result > 0)
282	{	594	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;	595	break;
288		596
289	case EIO_STAT:	597	case EIO_STAT:
290	case EIO_LSTAT:	598	case EIO_LSTAT:
291	case EIO_FSTAT:	599	case EIO_FSTAT:
292	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;	600	PL_laststype = req->type == EIO_LSTAT ? OP_LSTAT : OP_STAT;
293	PL_laststatval = req->result;	601	PL_laststatval = req->result;
		602	/* if compilation fails here then perl's Stat_t is not struct _stati64 */
294	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);	603	PL_statcache = *(EIO_STRUCT_STAT *)(req->ptr2);
295	PUSHs (sv_2mortal (newSViv (req->result)));	604	PUSHs (sv_result);
296	break;	605	break;
297		606
298	case EIO_READ:	607	case EIO_READ:
		608	{
299	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));	609	SvCUR_set (req->sv2, req->stroffset + (req->result > 0 ? req->result : 0));
300	*SvEND (req->sv2) = 0;	610	*SvEND (req->sv2) = 0;
301	PUSHs (sv_2mortal (newSViv (req->result)));	611	SvPOK_only (req->sv2);
		612	SvSETMAGIC (req->sv2);
		613	PUSHs (sv_result);
		614	}
302	break;	615	break;
303		616
304	case EIO_DUP2:	617	case EIO_DUP2: /* EIO_DUP2 actually means aio_close(), so fudge result value */
305	if (req->result > 0)	618	if (req->result > 0)
306	req->result = 0;	619	SvIV_set (sv_result, 0);
307	/* FALLTHROUGH */	620	/* FALLTHROUGH */
308		621
309	default:	622	default:
310	PUSHs (sv_2mortal (newSViv (req->result)));	623	PUSHs (sv_result);
311	break;	624	break;
312	}	625	}
313		626
314	errno = req->errorno;	627	errno = req->errorno;
315		628
316	PUTBACK;	629	PUTBACK;
317	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);	630	call_sv (req->callback, G_VOID | G_EVAL | G_DISCARD);
318	SPAGAIN;	631	SPAGAIN;
		632
		633	if (expect_false (SvREFCNT (sv_result) != 1 || sv_result_cache))
		634	SvREFCNT_dec (sv_result);
		635	else
		636	sv_result_cache = sv_result;
319		637
320	FREETMPS;	638	FREETMPS;
321	LEAVE;	639	LEAVE;
322		640
323	PUTBACK;	641	PUTBACK;
…		…
341	Safefree (req);	659	Safefree (req);
342	}	660	}
343		661
344	static void req_cancel_subs (aio_req grp)	662	static void req_cancel_subs (aio_req grp)
345	{	663	{
346	aio_req sub;
347
348	if (grp->type != EIO_GROUP)	664	if (grp->type != EIO_GROUP)
349	return;	665	return;
350		666
351	SvREFCNT_dec (grp->sv2);	667	SvREFCNT_dec (grp->sv2);
352	grp->sv2 = 0;	668	grp->sv2 = 0;
353		669
354	eio_grp_cancel (grp);	670	eio_grp_cancel (grp);
355	}	671	}
356		672
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)	673	static void create_respipe (void)
365	{	674	{
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))	675	if (s_epipe_renew (&respipe))
375	#endif
376	croak ("unable to initialize result pipe");	676	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	}	677	}
400		678
401	static void poll_wait (void)	679	static void poll_wait (void)
402	{	680	{
403	fd_set rfd;
404
405	while (eio_nreqs ())	681	while (eio_nreqs ())
406	{	682	{
407	int size;	683	int size;
408		684
409	X_LOCK (reslock);	685	X_LOCK (reslock);
…		…
411	X_UNLOCK (reslock);	687	X_UNLOCK (reslock);
412		688
413	if (size)	689	if (size)
414	return;	690	return;
415		691
416	maybe_start_thread ();	692	etp_maybe_start_thread ();
417		693
418	FD_ZERO (&rfd);	694	s_epipe_wait (&respipe);
419	FD_SET (respipe [0], &rfd);
420
421	PerlSock_select (respipe [0] + 1, &rfd, 0, 0, 0);
422	}	695	}
423	}	696	}
424		697
425	static int poll_cb (void)	698	static int poll_cb (void)
426	{	699	{
427	int res;	700	for (;;)
428
429	do
430	{	701	{
431	res = eio_poll ();	702	int res = eio_poll ();
432		703
433	if (res > 0)	704	if (res > 0)
434	croak (0);	705	croak (0);
		706
		707	if (!max_outstanding || max_outstanding > eio_nreqs ())
		708	return res;
		709
		710	poll_wait ();
435	}	711	}
436	while (max_outstanding && max_outstanding <= eio_nreqs ());
437
438	return res;
439	}	712	}
440		713
		714	static void ecb_cold
441	static void atfork_child (void)	715	atfork_child (void)
442	{	716	{
443	create_respipe ();	717	create_respipe ();
		718
		719	if (eio_init (want_poll, done_poll) < 0)
		720	croak ("IO::AIO: unable to initialise eio library");
		721	}
		722
		723	/*****************************************************************************/
		724
		725	#if !_POSIX_MAPPED_FILES
		726	# define mmap(addr,length,prot,flags,fd,offs) (errno = ENOSYS, -1)
		727	# define munmap(addr,length) (errno = ENOSYS, -1)
		728	#endif
		729
		730	#if !_POSIX_MEMORY_PROTECTION
		731	# define mprotect(addr,len,prot) (errno = ENOSYS, -1)
		732	# define PROT_NONE 0
		733	# define PROT_WRITE 0
		734	# define MAP_PRIVATE 0
		735	# define MAP_SHARED 0
		736	# define MAP_FIXED 0
		737	#endif
		738
		739	#define MMAP_MAGIC PERL_MAGIC_ext
		740
		741	static int mmap_free (pTHX_ SV *sv, MAGIC *mg)
		742	{
		743	int old_errno = errno;
		744	munmap (mg->mg_ptr, (size_t)mg->mg_obj);
		745	errno = old_errno;
		746
		747	mg->mg_obj = 0; /* just in case */
		748
		749	SvREADONLY_off (sv);
		750
		751	if (SvPVX (sv) != mg->mg_ptr)
		752	croak ("ERROR: IO::AIO::mmap-mapped scalar changed location, detected");
		753
		754	SvCUR_set (sv, 0);
		755	SvPVX (sv) = 0;
		756	SvOK_off (sv);
		757
		758	return 0;
		759	}
		760
		761	static MGVTBL mmap_vtbl = {
		762	0, 0, 0, 0, mmap_free
		763	};
		764
		765	/*****************************************************************************/
		766
		767	static SV * get_cb (SV *cb_sv)
		768	{
		769	SvGETMAGIC (cb_sv);
		770	return SvOK (cb_sv) ? s_get_cv_croak (cb_sv) : 0;
444	}	771	}
445		772
446	#define dREQ \	773	#define dREQ \
		774	SV *cb_cv; \
447	aio_req req; \	775	aio_req req; \
448	int req_pri = next_pri; \	776	int req_pri = next_pri; \
449	next_pri = EIO_DEFAULT_PRI + EIO_PRI_BIAS; \	777	next_pri = EIO_PRI_DEFAULT; \
450	\	778	\
451	if (SvOK (callback) && !SvROK (callback)) \	779	cb_cv = get_cb (callback); \
452	croak ("callback must be undef or of reference type"); \
453	\	780	\
454	Newz (0, req, 1, eio_req); \	781	Newz (0, req, 1, eio_req); \
455	if (!req) \	782	if (!req) \
456	croak ("out of memory during eio_req allocation"); \	783	croak ("out of memory during eio_req allocation"); \
457	\	784	\
458	req->callback = newSVsv (callback); \	785	req->callback = SvREFCNT_inc (cb_cv); \
459	req->pri = req_pri	786	req->pri = req_pri
460		787
461	#define REQ_SEND \	788	#define REQ_SEND \
		789	PUTBACK; \
462	req_submit (req); \	790	req_submit (req); \
		791	SPAGAIN; \
463	\	792	\
464	if (GIMME_V != G_VOID) \	793	if (GIMME_V != G_VOID) \
465	XPUSHs (req_sv (req, AIO_REQ_KLASS));	794	XPUSHs (req_sv (req, aio_req_stash));
466		795
467	MODULE = IO::AIO PACKAGE = IO::AIO	796	MODULE = IO::AIO PACKAGE = IO::AIO
468		797
469	PROTOTYPES: ENABLE	798	PROTOTYPES: ENABLE
470		799
471	BOOT:	800	BOOT:
472	{	801	{
		802	static const struct {
		803	const char *name;
		804	IV iv;
		805	} *civ, const_iv[] = {
		806	# define const_niv(name, value) { # name, (IV) value },
		807	# define const_iv(name) { # name, (IV) name },
		808	# define const_eio(name) { # name, (IV) EIO_ ## name },
		809	const_iv (EXDEV)
		810	const_iv (ENOSYS)
		811	const_iv (O_RDONLY)
		812	const_iv (O_WRONLY)
		813	const_iv (O_RDWR)
		814	const_iv (O_CREAT)
		815	const_iv (O_TRUNC)
		816	const_iv (O_EXCL)
		817	const_iv (O_APPEND)
		818
		819	const_iv (O_ASYNC)
		820	const_iv (O_DIRECT)
		821	const_iv (O_NOATIME)
		822
		823	const_iv (O_CLOEXEC)
		824	const_iv (O_NOCTTY)
		825	const_iv (O_NOFOLLOW)
		826	const_iv (O_NONBLOCK)
		827	const_iv (O_EXEC)
		828	const_iv (O_SEARCH)
		829	const_iv (O_DIRECTORY)
		830	const_iv (O_DSYNC)
		831	const_iv (O_RSYNC)
		832	const_iv (O_SYNC)
		833	const_iv (O_TTY_INIT)
		834
		835	const_iv (S_IFIFO)
		836	const_iv (S_IFCHR)
		837	const_iv (S_IFBLK)
		838	const_iv (S_IFLNK)
		839	const_iv (S_IFREG)
		840	const_iv (S_IFDIR)
		841	const_iv (S_IFWHT)
		842	const_iv (S_IFSOCK)
		843	const_iv (S_IFMT)
		844
		845	const_niv (FADV_NORMAL , POSIX_FADV_NORMAL)
		846	const_niv (FADV_SEQUENTIAL, POSIX_FADV_SEQUENTIAL)
		847	const_niv (FADV_RANDOM , POSIX_FADV_RANDOM)
		848	const_niv (FADV_NOREUSE , POSIX_FADV_NOREUSE)
		849	const_niv (FADV_WILLNEED , POSIX_FADV_WILLNEED)
		850	const_niv (FADV_DONTNEED , POSIX_FADV_DONTNEED)
		851
		852	const_niv (MADV_NORMAL , POSIX_MADV_NORMAL)
		853	const_niv (MADV_SEQUENTIAL, POSIX_MADV_SEQUENTIAL)
		854	const_niv (MADV_RANDOM , POSIX_MADV_RANDOM)
		855	const_niv (MADV_WILLNEED , POSIX_MADV_WILLNEED)
		856	const_niv (MADV_DONTNEED , POSIX_MADV_DONTNEED)
		857
		858	const_iv (ST_RDONLY)
		859	const_iv (ST_NOSUID)
		860	const_iv (ST_NODEV)
		861	const_iv (ST_NOEXEC)
		862	const_iv (ST_SYNCHRONOUS)
		863	const_iv (ST_MANDLOCK)
		864	const_iv (ST_WRITE)
		865	const_iv (ST_APPEND)
		866	const_iv (ST_IMMUTABLE)
		867	const_iv (ST_NOATIME)
		868	const_iv (ST_NODIRATIME)
		869	const_iv (ST_RELATIME)
		870
		871	const_iv (PROT_NONE)
		872	const_iv (PROT_EXEC)
		873	const_iv (PROT_READ)
		874	const_iv (PROT_WRITE)
		875
		876	/*const_iv (MAP_FIXED)*/
		877	const_iv (MAP_PRIVATE)
		878	const_iv (MAP_SHARED)
		879	const_iv (MAP_ANONYMOUS)
		880
		881	/* linuxish */
		882	const_iv (MAP_HUGETLB)
		883	const_iv (MAP_LOCKED)
		884	const_iv (MAP_NORESERVE)
		885	const_iv (MAP_POPULATE)
		886	const_iv (MAP_NONBLOCK)
		887
		888	const_eio (MCL_FUTURE)
		889	const_eio (MCL_CURRENT)
		890
		891	const_eio (MS_ASYNC)
		892	const_eio (MS_INVALIDATE)
		893	const_eio (MS_SYNC)
		894
		895	const_eio (MT_MODIFY)
		896
		897	const_eio (SYNC_FILE_RANGE_WAIT_BEFORE)
		898	const_eio (SYNC_FILE_RANGE_WRITE)
		899	const_eio (SYNC_FILE_RANGE_WAIT_AFTER)
		900
		901	const_eio (FALLOC_FL_KEEP_SIZE)
		902
		903	const_eio (READDIR_DENTS)
		904	const_eio (READDIR_DIRS_FIRST)
		905	const_eio (READDIR_STAT_ORDER)
		906	const_eio (READDIR_FOUND_UNKNOWN)
		907
		908	const_eio (DT_UNKNOWN)
		909	const_eio (DT_FIFO)
		910	const_eio (DT_CHR)
		911	const_eio (DT_DIR)
		912	const_eio (DT_BLK)
		913	const_eio (DT_REG)
		914	const_eio (DT_LNK)
		915	const_eio (DT_SOCK)
		916	const_eio (DT_WHT)
		917	};
		918
473	stash = gv_stashpv ("IO::AIO", 1);	919	aio_stash = gv_stashpv ("IO::AIO" , 1);
		920	aio_req_stash = gv_stashpv ("IO::AIO::REQ", 1);
		921	aio_grp_stash = gv_stashpv ("IO::AIO::GRP", 1);
474		922
475	newCONSTSUB (stash, "EXDEV", newSViv (EXDEV));	923	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
476	newCONSTSUB (stash, "O_RDONLY", newSViv (O_RDONLY));	924	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		925
488	X_COND_CHECK (reqwait);	926	newCONSTSUB (aio_stash, "PAGESIZE", newSViv (PAGESIZE));
489	#else
490	newCONSTSUB (stash, "S_IFIFO", newSViv (S_IFIFO));
491	#endif
492		927
493	create_respipe ();
494
495	if (eio_init (want_poll, done_poll) < 0)
496	croak ("IO::AIO: unable to initialise eio library");
497
498	/* atfork child called in fifo order, so before eio's handler */
499	X_THREAD_ATFORK (0, 0, atfork_child);	928	X_THREAD_ATFORK (0, 0, atfork_child);
		929	atfork_child (); /* calls create_respipe and eio_init */
500	}	930	}
501		931
502	void	932	void
503	max_poll_reqs (int nreqs)	933	max_poll_reqs (unsigned int nreqs)
504	PROTOTYPE: $	934	PROTOTYPE: $
505	CODE:	935	CODE:
506	eio_set_max_poll_reqs (nreqs);	936	eio_set_max_poll_reqs (nreqs);
507		937
508	void	938	void
…		…
510	PROTOTYPE: $	940	PROTOTYPE: $
511	CODE:	941	CODE:
512	eio_set_max_poll_time (nseconds);	942	eio_set_max_poll_time (nseconds);
513		943
514	void	944	void
515	min_parallel (int nthreads)	945	min_parallel (unsigned int nthreads)
516	PROTOTYPE: $	946	PROTOTYPE: $
517	CODE:	947	CODE:
518	eio_set_min_parallel (nthreads);	948	eio_set_min_parallel (nthreads);
519		949
520	void	950	void
521	max_parallel (int nthreads)	951	max_parallel (unsigned int nthreads)
522	PROTOTYPE: $	952	PROTOTYPE: $
523	CODE:	953	CODE:
524	eio_set_max_parallel (nthreads);	954	eio_set_max_parallel (nthreads);
525		955
526	void	956	void
527	max_idle (int nthreads)	957	max_idle (unsigned int nthreads)
528	PROTOTYPE: $	958	PROTOTYPE: $
529	CODE:	959	CODE:
530	eio_set_max_idle (nthreads);	960	eio_set_max_idle (nthreads);
531		961
532	void	962	void
		963	idle_timeout (unsigned int seconds)
		964	PROTOTYPE: $
		965	CODE:
		966	eio_set_idle_timeout (seconds);
		967
		968	void
533	max_outstanding (int maxreqs)	969	max_outstanding (unsigned int maxreqs)
534	PROTOTYPE: $	970	PROTOTYPE: $
535	CODE:	971	CODE:
536	max_outstanding = maxreqs;	972	max_outstanding = maxreqs;
537		973
538	void	974	void
539	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	975	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
540	PROTOTYPE: $$$;$
541	PPCODE:	976	PPCODE:
542	{	977	{
543	dREQ;	978	dREQ;
544		979
545	req->type = EIO_OPEN;	980	req->type = EIO_OPEN;
…		…
551	REQ_SEND;	986	REQ_SEND;
552	}	987	}
553		988
554	void	989	void
555	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	990	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
556	PROTOTYPE: $;$
557	ALIAS:	991	ALIAS:
558	aio_fsync = EIO_FSYNC	992	aio_fsync = EIO_FSYNC
559	aio_fdatasync = EIO_FDATASYNC	993	aio_fdatasync = EIO_FDATASYNC
560	PPCODE:	994	PPCODE:
561	{	995	{
		996	int fd = s_fileno_croak (fh, 0);
562	dREQ;	997	dREQ;
563		998
564	req->type = ix;	999	req->type = ix;
565	req->sv1 = newSVsv (fh);	1000	req->sv1 = newSVsv (fh);
566	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1001	req->int1 = fd;
567		1002
568	REQ_SEND (req);	1003	REQ_SEND (req);
569	}	1004	}
570		1005
571	void	1006	void
		1007	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		1008	PPCODE:
		1009	{
		1010	int fd = s_fileno_croak (fh, 0);
		1011	dREQ;
		1012
		1013	req->type = EIO_SYNC_FILE_RANGE;
		1014	req->sv1 = newSVsv (fh);
		1015	req->int1 = fd;
		1016	req->offs = offset;
		1017	req->size = nbytes;
		1018	req->int2 = flags;
		1019
		1020	REQ_SEND (req);
		1021	}
		1022
		1023	void
		1024	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1025	PPCODE:
		1026	{
		1027	int fd = s_fileno_croak (fh, 0);
		1028	dREQ;
		1029
		1030	req->type = EIO_FALLOCATE;
		1031	req->sv1 = newSVsv (fh);
		1032	req->int1 = fd;
		1033	req->int2 = mode;
		1034	req->offs = offset;
		1035	req->size = len;
		1036
		1037	REQ_SEND (req);
		1038	}
		1039
		1040	void
572	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1041	aio_close (SV *fh, SV *callback=&PL_sv_undef)
573	PROTOTYPE: $;$
574	PPCODE:	1042	PPCODE:
575	{	1043	{
576	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1044	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1045	int fd = s_fileno_croak (fh, 0);
577	dREQ;	1046	dREQ;
578		1047
579	if (close_pipe < 0)	1048	if (expect_false (close_fd < 0))
580	{	1049	{
581	int pipefd [2];	1050	int pipefd [2];
582		1051
		1052	if (
		1053	#ifdef _WIN32
		1054	_pipe (pipefd, 1, _O_BINARY) < 0
		1055	#else
583	if (pipe (pipefd) < 0	1056	pipe (pipefd) < 0
584	|| close (pipefd [1]) < 0
585	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1057	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1058	#endif
		1059	|| close (pipefd [1]) < 0
		1060	)
586	abort (); /*D*/	1061	abort (); /*D*/
587		1062
588	close_pipe = pipefd [0];	1063	close_fd = pipefd [0];
589	}	1064	}
590		1065
591	req->type = EIO_DUP2;	1066	req->type = EIO_DUP2;
592	req->int1 = close_pipe;	1067	req->int1 = close_fd;
593	req->sv2 = newSVsv (fh);	1068	req->sv2 = newSVsv (fh);
594	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1069	req->int2 = fd;
595		1070
596	REQ_SEND (req);	1071	REQ_SEND (req);
597	}	1072	}
598		1073
599	void	1074	void
600	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1075	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
601	ALIAS:	1076	ALIAS:
602	aio_read = EIO_READ	1077	aio_read = EIO_READ
603	aio_write = EIO_WRITE	1078	aio_write = EIO_WRITE
604	PROTOTYPE: $$$$$;$
605	PPCODE:	1079	PPCODE:
606	{	1080	{
607	STRLEN svlen;	1081	STRLEN svlen;
		1082	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
608	char *svptr = SvPVbyte (data, svlen);	1083	char *svptr = SvPVbyte (data, svlen);
609	UV len = SvUV (length);	1084	UV len = SvUV (length);
610
611	SvUPGRADE (data, SVt_PV);
612	SvPOK_on (data);
613		1085
614	if (dataoffset < 0)	1086	if (dataoffset < 0)
615	dataoffset += svlen;	1087	dataoffset += svlen;
616		1088
617	if (dataoffset < 0 || dataoffset > svlen)	1089	if (dataoffset < 0 || dataoffset > svlen)
…		…
623	if (!SvOK (length) || len + dataoffset > svlen)	1095	if (!SvOK (length) || len + dataoffset > svlen)
624	len = svlen - dataoffset;	1096	len = svlen - dataoffset;
625	}	1097	}
626	else	1098	else
627	{	1099	{
628	/* read: grow scalar as necessary */	1100	/* read: check type and grow scalar as necessary */
		1101	SvUPGRADE (data, SVt_PV);
629	svptr = SvGROW (data, len + dataoffset + 1);	1102	svptr = SvGROW (data, len + dataoffset + 1);
630	}	1103	}
631		1104
632	if (len < 0)
633	croak ("length must not be negative");
634
635	{	1105	{
636	dREQ;	1106	dREQ;
637		1107
638	req->type = ix;	1108	req->type = ix;
639	req->sv1 = newSVsv (fh);	1109	req->sv1 = newSVsv (fh);
640	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1110	req->int1 = fd;
641	: IoOFP (sv_2io (fh)));
642	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1111	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
643	req->size = len;	1112	req->size = len;
644	req->sv2 = SvREFCNT_inc (data);	1113	req->sv2 = SvREFCNT_inc (data);
645	req->ptr2 = (char *)svptr + dataoffset;	1114	req->ptr2 = (char *)svptr + dataoffset;
646	req->stroffset = dataoffset;	1115	req->stroffset = dataoffset;
…		…
655	}	1124	}
656	}	1125	}
657		1126
658	void	1127	void
659	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1128	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
660	PROTOTYPE: $$;$	1129	ALIAS:
		1130	aio_readlink = EIO_READLINK
		1131	aio_realpath = EIO_REALPATH
661	PPCODE:	1132	PPCODE:
662	{	1133	{
663	SV *data;
664	dREQ;	1134	dREQ;
665		1135
666	data = newSV (NAME_MAX);
667	SvPOK_on (data);
668
669	req->type = EIO_READLINK;	1136	req->type = ix;
670	req->sv1 = newSVsv (path);	1137	req->sv1 = newSVsv (path);
671	req->ptr1 = SvPVbyte_nolen (req->sv1);	1138	req->ptr1 = SvPVbyte_nolen (req->sv1);
672	req->sv2 = data;
673	req->ptr2 = SvPVbyte_nolen (data);
674		1139
675	REQ_SEND;	1140	REQ_SEND;
676	}	1141	}
677		1142
678	void	1143	void
679	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1144	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
680	PROTOTYPE: $$$$;$
681	PPCODE:	1145	PPCODE:
682	{	1146	{
		1147	int ifd = s_fileno_croak (in_fh , 0);
		1148	int ofd = s_fileno_croak (out_fh, 1);
683	dREQ;	1149	dREQ;
684		1150
685	req->type = EIO_SENDFILE;	1151	req->type = EIO_SENDFILE;
686	req->sv1 = newSVsv (out_fh);	1152	req->sv1 = newSVsv (out_fh);
687	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1153	req->int1 = ofd;
688	req->sv2 = newSVsv (in_fh);	1154	req->sv2 = newSVsv (in_fh);
689	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1155	req->int2 = ifd;
690	req->offs = SvVAL64 (in_offset);	1156	req->offs = in_offset;
691	req->size = length;	1157	req->size = length;
692		1158
693	REQ_SEND;	1159	REQ_SEND;
694	}	1160	}
695		1161
696	void	1162	void
697	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1163	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
698	PROTOTYPE: $$$;$
699	PPCODE:	1164	PPCODE:
700	{	1165	{
		1166	int fd = s_fileno_croak (fh, 0);
701	dREQ;	1167	dREQ;
702		1168
703	req->type = EIO_READAHEAD;	1169	req->type = EIO_READAHEAD;
704	req->sv1 = newSVsv (fh);	1170	req->sv1 = newSVsv (fh);
705	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1171	req->int1 = fd;
706	req->offs = SvVAL64 (offset);	1172	req->offs = offset;
707	req->size = length;	1173	req->size = length;
708		1174
709	REQ_SEND;	1175	REQ_SEND;
710	}	1176	}
711		1177
712	void	1178	void
713	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1179	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
714	ALIAS:	1180	ALIAS:
715	aio_stat = EIO_STAT	1181	aio_stat = EIO_STAT
716	aio_lstat = EIO_LSTAT	1182	aio_lstat = EIO_LSTAT
		1183	aio_statvfs = EIO_STATVFS
717	PPCODE:	1184	PPCODE:
718	{	1185	{
719	dREQ;	1186	dREQ;
720		1187
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);	1188	req->sv1 = newSVsv (fh_or_path);
730		1189
731	if (SvPOK (fh_or_path))	1190	if (SvPOK (req->sv1))
732	{	1191	{
733	req->type = ix;	1192	req->type = ix;
734	req->ptr1 = SvPVbyte_nolen (req->sv1);	1193	req->ptr1 = SvPVbyte_nolen (req->sv1);
735	}	1194	}
736	else	1195	else
737	{	1196	{
738	req->type = EIO_FSTAT;	1197	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
739	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1198	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
740	}	1199	}
741		1200
742	REQ_SEND;	1201	REQ_SEND;
743	}	1202	}
		1203
		1204	UV
		1205	major (UV dev)
		1206	ALIAS:
		1207	minor = 1
		1208	CODE:
		1209	RETVAL = ix ? major (dev) : minor (dev);
		1210	OUTPUT:
		1211	RETVAL
		1212
		1213	UV
		1214	makedev (UV maj, UV min)
		1215	CODE:
		1216	RETVAL = makedev (maj, min);
		1217	OUTPUT:
		1218	RETVAL
744		1219
745	void	1220	void
746	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1221	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
747	PPCODE:	1222	PPCODE:
748	{	1223	{
…		…
750		1225
751	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1226	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
752	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1227	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
753	req->sv1 = newSVsv (fh_or_path);	1228	req->sv1 = newSVsv (fh_or_path);
754		1229
755	if (SvPOK (fh_or_path))	1230	if (SvPOK (req->sv1))
756	{	1231	{
757	req->type = EIO_UTIME;	1232	req->type = EIO_UTIME;
758	req->ptr1 = SvPVbyte_nolen (req->sv1);	1233	req->ptr1 = SvPVbyte_nolen (req->sv1);
759	}	1234	}
760	else	1235	else
…		…
773	dREQ;	1248	dREQ;
774		1249
775	req->sv1 = newSVsv (fh_or_path);	1250	req->sv1 = newSVsv (fh_or_path);
776	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1251	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
777		1252
778	if (SvPOK (fh_or_path))	1253	if (SvPOK (req->sv1))
779	{	1254	{
780	req->type = EIO_TRUNCATE;	1255	req->type = EIO_TRUNCATE;
781	req->ptr1 = SvPVbyte_nolen (req->sv1);	1256	req->ptr1 = SvPVbyte_nolen (req->sv1);
782	}	1257	}
783	else	1258	else
…		…
791		1266
792	void	1267	void
793	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1268	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
794	ALIAS:	1269	ALIAS:
795	aio_chmod = EIO_CHMOD	1270	aio_chmod = EIO_CHMOD
796	aio_fchmod = EIO_FCHMOD
797	aio_mkdir = EIO_MKDIR	1271	aio_mkdir = EIO_MKDIR
798	PPCODE:	1272	PPCODE:
799	{	1273	{
800	dREQ;	1274	dREQ;
801		1275
802	req->type = ix;
803	req->int2 = mode;	1276	req->int2 = mode;
804	req->sv1 = newSVsv (fh_or_path);	1277	req->sv1 = newSVsv (fh_or_path);
805		1278
806	if (ix == EIO_FCHMOD)	1279	if (SvPOK (req->sv1))
807	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1280	{
		1281	req->type = ix;
		1282	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1283	}
808	else	1284	else
809	req->ptr1 = SvPVbyte_nolen (req->sv1);	1285	{
		1286	req->type = EIO_FCHMOD;
		1287	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1288	}
810		1289
811	REQ_SEND;	1290	REQ_SEND;
812	}	1291	}
813		1292
814	void	1293	void
…		…
819		1298
820	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1299	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
821	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1300	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
822	req->sv1 = newSVsv (fh_or_path);	1301	req->sv1 = newSVsv (fh_or_path);
823		1302
824	if (SvPOK (fh_or_path))	1303	if (SvPOK (req->sv1))
825	{	1304	{
826	req->type = EIO_CHOWN;	1305	req->type = EIO_CHOWN;
827	req->ptr1 = SvPVbyte_nolen (req->sv1);	1306	req->ptr1 = SvPVbyte_nolen (req->sv1);
828	}	1307	}
829	else	1308	else
…		…
834		1313
835	REQ_SEND;	1314	REQ_SEND;
836	}	1315	}
837		1316
838	void	1317	void
		1318	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1319	PPCODE:
		1320	{
		1321	dREQ;
		1322
		1323	req->type = EIO_READDIR;
		1324	req->sv1 = newSVsv (pathname);
		1325	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1326	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1327
		1328	if (flags & EIO_READDIR_DENTS)
		1329	req->int1 |= EIO_READDIR_CUSTOM2;
		1330
		1331	REQ_SEND;
		1332	}
		1333
		1334	void
839	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1335	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
840	ALIAS:	1336	ALIAS:
841	aio_unlink = EIO_UNLINK	1337	aio_unlink = EIO_UNLINK
842	aio_rmdir = EIO_RMDIR	1338	aio_rmdir = EIO_RMDIR
843	aio_readdir = EIO_READDIR	1339	aio_readdir = EIO_READDIR
…		…
885		1381
886	REQ_SEND;	1382	REQ_SEND;
887	}	1383	}
888		1384
889	void	1385	void
		1386	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1387	ALIAS:
		1388	aio_mtouch = EIO_MTOUCH
		1389	aio_msync = EIO_MSYNC
		1390	PPCODE:
		1391	{
		1392	STRLEN svlen;
		1393	char *svptr = SvPVbyte (data, svlen);
		1394	UV len = SvUV (length);
		1395
		1396	if (offset < 0)
		1397	offset += svlen;
		1398
		1399	if (offset < 0 || offset > svlen)
		1400	croak ("offset outside of scalar");
		1401
		1402	if (!SvOK (length) || len + offset > svlen)
		1403	len = svlen - offset;
		1404
		1405	{
		1406	dREQ;
		1407
		1408	req->type = ix;
		1409	req->sv2 = SvREFCNT_inc (data);
		1410	req->ptr2 = (char *)svptr + offset;
		1411	req->size = len;
		1412	req->int1 = flags;
		1413
		1414	REQ_SEND;
		1415	}
		1416	}
		1417
		1418	void
		1419	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1420	PPCODE:
		1421	{
		1422	STRLEN svlen;
		1423	char *svptr = SvPVbyte (data, svlen);
		1424	UV len = SvUV (length);
		1425
		1426	if (offset < 0)
		1427	offset += svlen;
		1428
		1429	if (offset < 0 || offset > svlen)
		1430	croak ("offset outside of scalar");
		1431
		1432	if (!SvOK (length) || len + offset > svlen)
		1433	len = svlen - offset;
		1434
		1435	{
		1436	dREQ;
		1437
		1438	req->type = EIO_MLOCK;
		1439	req->sv2 = SvREFCNT_inc (data);
		1440	req->ptr2 = (char *)svptr + offset;
		1441	req->size = len;
		1442
		1443	REQ_SEND;
		1444	}
		1445	}
		1446
		1447	void
		1448	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1449	PPCODE:
		1450	{
		1451	dREQ;
		1452
		1453	req->type = EIO_MLOCKALL;
		1454	req->int1 = flags;
		1455
		1456	REQ_SEND;
		1457	}
		1458
		1459	void
890	aio_busy (double delay, SV *callback=&PL_sv_undef)	1460	aio_busy (double delay, SV *callback=&PL_sv_undef)
891	PPCODE:	1461	PPCODE:
892	{	1462	{
893	dREQ;	1463	dREQ;
894		1464
…		…
898	REQ_SEND;	1468	REQ_SEND;
899	}	1469	}
900		1470
901	void	1471	void
902	aio_group (SV *callback=&PL_sv_undef)	1472	aio_group (SV *callback=&PL_sv_undef)
903	PROTOTYPE: ;$
904	PPCODE:	1473	PPCODE:
905	{	1474	{
906	dREQ;	1475	dREQ;
907		1476
908	req->type = EIO_GROUP;	1477	req->type = EIO_GROUP;
909		1478
910	eio_submit (req);	1479	req_submit (req);
911	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1480	XPUSHs (req_sv (req, aio_grp_stash));
912	}	1481	}
913		1482
914	void	1483	void
915	aio_nop (SV *callback=&PL_sv_undef)	1484	aio_nop (SV *callback=&PL_sv_undef)
916	ALIAS:	1485	ALIAS:
…		…
925	REQ_SEND;	1494	REQ_SEND;
926	}	1495	}
927		1496
928	int	1497	int
929	aioreq_pri (int pri = 0)	1498	aioreq_pri (int pri = 0)
930	PROTOTYPE: ;$
931	CODE:	1499	CODE:
932	RETVAL = next_pri - EIO_PRI_BIAS;	1500	RETVAL = next_pri;
933	if (items > 0)	1501	if (items > 0)
934	{	1502	{
935	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1503	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
936	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1504	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
937	next_pri = pri + EIO_PRI_BIAS;	1505	next_pri = pri;
938	}	1506	}
939	OUTPUT:	1507	OUTPUT:
940	RETVAL	1508	RETVAL
941		1509
942	void	1510	void
943	aioreq_nice (int nice = 0)	1511	aioreq_nice (int nice = 0)
944	CODE:	1512	CODE:
945	nice = next_pri - nice;	1513	nice = next_pri - nice;
946	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1514	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
947	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1515	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
948	next_pri = nice + EIO_PRI_BIAS;	1516	next_pri = nice;
949		1517
950	void	1518	void
951	flush ()	1519	flush ()
952	PROTOTYPE:
953	CODE:	1520	CODE:
954	while (eio_nreqs ())	1521	while (eio_nreqs ())
955	{	1522	{
956	poll_wait ();	1523	poll_wait ();
957	poll_cb ();	1524	poll_cb ();
958	}	1525	}
959		1526
960	int	1527	int
961	poll()	1528	poll ()
962	PROTOTYPE:
963	CODE:	1529	CODE:
964	poll_wait ();	1530	poll_wait ();
965	RETVAL = poll_cb ();	1531	RETVAL = poll_cb ();
966	OUTPUT:	1532	OUTPUT:
967	RETVAL	1533	RETVAL
968		1534
969	int	1535	int
970	poll_fileno()	1536	poll_fileno ()
971	PROTOTYPE:
972	CODE:	1537	CODE:
973	RETVAL = respipe [0];	1538	RETVAL = s_epipe_fd (&respipe);
974	OUTPUT:	1539	OUTPUT:
975	RETVAL	1540	RETVAL
976		1541
977	int	1542	int
978	poll_cb(...)	1543	poll_cb (...)
979	PROTOTYPE:	1544	PROTOTYPE:
980	CODE:	1545	CODE:
981	RETVAL = poll_cb ();	1546	RETVAL = poll_cb ();
982	OUTPUT:	1547	OUTPUT:
983	RETVAL	1548	RETVAL
984		1549
985	void	1550	void
986	poll_wait()	1551	poll_wait ()
987	PROTOTYPE:
988	CODE:	1552	CODE:
989	poll_wait ();	1553	poll_wait ();
990		1554
991	int	1555	int
992	nreqs()	1556	nreqs ()
993	PROTOTYPE:
994	CODE:	1557	CODE:
995	RETVAL = eio_nreqs ();	1558	RETVAL = eio_nreqs ();
996	OUTPUT:	1559	OUTPUT:
997	RETVAL	1560	RETVAL
998		1561
999	int	1562	int
1000	nready()	1563	nready ()
1001	PROTOTYPE:
1002	CODE:	1564	CODE:
1003	RETVAL = eio_nready ();	1565	RETVAL = eio_nready ();
1004	OUTPUT:	1566	OUTPUT:
1005	RETVAL	1567	RETVAL
1006		1568
1007	int	1569	int
1008	npending()	1570	npending ()
1009	PROTOTYPE:
1010	CODE:	1571	CODE:
1011	RETVAL = eio_npending ();	1572	RETVAL = eio_npending ();
1012	OUTPUT:	1573	OUTPUT:
1013	RETVAL	1574	RETVAL
1014		1575
1015	int	1576	int
1016	nthreads()	1577	nthreads ()
1017	PROTOTYPE:
1018	CODE:	1578	CODE:
1019	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1579	RETVAL = eio_nthreads ();
1020	RETVAL = started;
1021	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1022	OUTPUT:	1580	OUTPUT:
1023	RETVAL	1581	RETVAL
		1582
		1583	int
		1584	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1585	CODE:
		1586	RETVAL = posix_fadvise (fh, offset, length, advice);
		1587	OUTPUT:
		1588	RETVAL
		1589
		1590	ssize_t
		1591	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1592	CODE:
		1593	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1594	OUTPUT:
		1595	RETVAL
		1596
		1597	void
		1598	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1599	PPCODE:
		1600	sv_unmagic (scalar, MMAP_MAGIC);
		1601	{
		1602	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1603	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1604	if (addr == (void *)-1)
		1605	XSRETURN_NO;
		1606
		1607	sv_force_normal (scalar);
		1608
		1609	/* we store the length in mg_obj, as namlen is I32 :/ */
		1610	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1611	->mg_obj = (SV *)length;
		1612
		1613	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1614
		1615	if (!(prot & PROT_WRITE))
		1616	SvREADONLY_on (scalar);
		1617
		1618	if (SvLEN (scalar))
		1619	Safefree (SvPVX (scalar));
		1620
		1621	SvPVX (scalar) = (char *)addr;
		1622	SvCUR_set (scalar, length);
		1623	SvLEN_set (scalar, 0);
		1624	SvPOK_only (scalar);
		1625
		1626	XSRETURN_YES;
		1627	}
		1628
		1629	void
		1630	munmap (SV *scalar)
		1631	CODE:
		1632	sv_unmagic (scalar, MMAP_MAGIC);
		1633
		1634	int
		1635	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1636	ALIAS:
		1637	mprotect = 1
		1638	CODE:
		1639	{
		1640	STRLEN svlen;
		1641	void *addr = SvPVbyte (scalar, svlen);
		1642	size_t len = SvUV (length);
		1643
		1644	if (offset < 0)
		1645	offset += svlen;
		1646
		1647	if (offset < 0 || offset > svlen)
		1648	croak ("offset outside of scalar");
		1649
		1650	if (!SvOK (length) || len + offset > svlen)
		1651	len = svlen - offset;
		1652
		1653	addr = (void *)(((intptr_t)addr) + offset);
		1654	eio_page_align (&addr, &len);
		1655
		1656	switch (ix)
		1657	{
		1658	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1659	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1660	}
		1661	}
		1662	OUTPUT:
		1663	RETVAL
		1664
		1665	int
		1666	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1667	CODE:
		1668	{
		1669	STRLEN svlen;
		1670	void *addr = SvPVbyte (scalar, svlen);
		1671	size_t len = SvUV (length);
		1672
		1673	if (offset < 0)
		1674	offset += svlen;
		1675
		1676	if (offset < 0 || offset > svlen)
		1677	croak ("offset outside of scalar");
		1678
		1679	if (!SvOK (length) || len + offset > svlen)
		1680	len = svlen - offset;
		1681
		1682	addr = (void *)(((intptr_t)addr) + offset);
		1683	eio_page_align (&addr, &len);
		1684	#if _POSIX_MEMLOCK_RANGE
		1685	RETVAL = munlock (addr, len);
		1686	#else
		1687	RETVAL = ((errno = ENOSYS), -1);
		1688	#endif
		1689	}
		1690	OUTPUT:
		1691	RETVAL
		1692
		1693	int
		1694	munlockall ()
		1695	CODE:
		1696	#if _POSIX_MEMLOCK
		1697	munlockall ();
		1698	#else
		1699	RETVAL = -1;
		1700	errno = ENOSYS;
		1701	#endif
		1702	OUTPUT:
		1703	RETVAL
1024		1704
1025	void _on_next_submit (SV *cb)	1705	void _on_next_submit (SV *cb)
1026	CODE:	1706	CODE:
1027	SvREFCNT_dec (on_next_submit);	1707	SvREFCNT_dec (on_next_submit);
1028	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1708	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
…		…
1036	CODE:	1716	CODE:
1037	eio_cancel (req);	1717	eio_cancel (req);
1038		1718
1039	void	1719	void
1040	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1720	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1041	CODE:	1721	PPCODE:
		1722	{
		1723	if (GIMME_V != G_VOID)
		1724	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1725
		1726	if (items > 1)
		1727	{
		1728	SV *cb_cv =get_cb (callback);
		1729
1042	SvREFCNT_dec (req->callback);	1730	SvREFCNT_dec (req->callback);
1043	req->callback = newSVsv (callback);	1731	req->callback = SvREFCNT_inc (cb_cv);
		1732	}
		1733	}
1044		1734
1045	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1735	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1046		1736
1047	void	1737	void
1048	add (aio_req grp, ...)	1738	add (aio_req grp, ...)
…		…
1080	AV *av;	1770	AV *av;
1081		1771
1082	grp->errorno = errno;	1772	grp->errorno = errno;
1083		1773
1084	av = newAV ();	1774	av = newAV ();
		1775	av_extend (av, items - 1);
1085		1776
1086	for (i = 1; i < items; ++i )	1777	for (i = 1; i < items; ++i )
1087	av_push (av, newSVsv (ST (i)));	1778	av_push (av, newSVsv (ST (i)));
1088		1779
1089	SvREFCNT_dec (grp->sv1);	1780	SvREFCNT_dec (grp->sv1);
…		…
1103	void	1794	void
1104	feed (aio_req grp, SV *callback=&PL_sv_undef)	1795	feed (aio_req grp, SV *callback=&PL_sv_undef)
1105	CODE:	1796	CODE:
1106	{	1797	{
1107	SvREFCNT_dec (grp->sv2);	1798	SvREFCNT_dec (grp->sv2);
1108	grp->sv2 = newSVsv (callback);	1799	grp->sv2 = newSVsv (callback);
		1800	grp->feed = aio_grp_feed;
1109		1801
1110	if (grp->int2 <= 0)	1802	if (grp->int2 <= 0)
1111	grp->int2 = 2;	1803	grp->int2 = 2;
1112		1804
1113	eio_grp_limit (grp, grp->int2);	1805	eio_grp_limit (grp, grp->int2);

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