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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 1.190 by root, Mon Jul 18 02:02:26 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
441	static void atfork_child (void)	714	static void ecb_cold
		715	reinit (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 ();	928	reinit ();
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);
500	}	929	}
501		930
502	void	931	void
		932	reinit ()
		933	PROTOTYPE:
		934	CODE:
		935	reinit ();
		936
		937	void
503	max_poll_reqs (int nreqs)	938	max_poll_reqs (unsigned int nreqs)
504	PROTOTYPE: $	939	PROTOTYPE: $
505	CODE:	940	CODE:
506	eio_set_max_poll_reqs (nreqs);	941	eio_set_max_poll_reqs (nreqs);
507		942
508	void	943	void
…		…
510	PROTOTYPE: $	945	PROTOTYPE: $
511	CODE:	946	CODE:
512	eio_set_max_poll_time (nseconds);	947	eio_set_max_poll_time (nseconds);
513		948
514	void	949	void
515	min_parallel (int nthreads)	950	min_parallel (unsigned int nthreads)
516	PROTOTYPE: $	951	PROTOTYPE: $
517	CODE:	952	CODE:
518	eio_set_min_parallel (nthreads);	953	eio_set_min_parallel (nthreads);
519		954
520	void	955	void
521	max_parallel (int nthreads)	956	max_parallel (unsigned int nthreads)
522	PROTOTYPE: $	957	PROTOTYPE: $
523	CODE:	958	CODE:
524	eio_set_max_parallel (nthreads);	959	eio_set_max_parallel (nthreads);
525		960
526	void	961	void
527	max_idle (int nthreads)	962	max_idle (unsigned int nthreads)
528	PROTOTYPE: $	963	PROTOTYPE: $
529	CODE:	964	CODE:
530	eio_set_max_idle (nthreads);	965	eio_set_max_idle (nthreads);
531		966
532	void	967	void
		968	idle_timeout (unsigned int seconds)
		969	PROTOTYPE: $
		970	CODE:
		971	eio_set_idle_timeout (seconds);
		972
		973	void
533	max_outstanding (int maxreqs)	974	max_outstanding (unsigned int maxreqs)
534	PROTOTYPE: $	975	PROTOTYPE: $
535	CODE:	976	CODE:
536	max_outstanding = maxreqs;	977	max_outstanding = maxreqs;
537		978
538	void	979	void
539	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)	980	aio_open (SV8 *pathname, int flags, int mode, SV *callback=&PL_sv_undef)
540	PROTOTYPE: $$$;$
541	PPCODE:	981	PPCODE:
542	{	982	{
543	dREQ;	983	dREQ;
544		984
545	req->type = EIO_OPEN;	985	req->type = EIO_OPEN;
…		…
551	REQ_SEND;	991	REQ_SEND;
552	}	992	}
553		993
554	void	994	void
555	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)	995	aio_fsync (SV *fh, SV *callback=&PL_sv_undef)
556	PROTOTYPE: $;$
557	ALIAS:	996	ALIAS:
558	aio_fsync = EIO_FSYNC	997	aio_fsync = EIO_FSYNC
559	aio_fdatasync = EIO_FDATASYNC	998	aio_fdatasync = EIO_FDATASYNC
560	PPCODE:	999	PPCODE:
561	{	1000	{
		1001	int fd = s_fileno_croak (fh, 0);
562	dREQ;	1002	dREQ;
563		1003
564	req->type = ix;	1004	req->type = ix;
565	req->sv1 = newSVsv (fh);	1005	req->sv1 = newSVsv (fh);
566	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1006	req->int1 = fd;
567		1007
568	REQ_SEND (req);	1008	REQ_SEND (req);
569	}	1009	}
570		1010
571	void	1011	void
		1012	aio_sync_file_range (SV *fh, off_t offset, size_t nbytes, UV flags, SV *callback=&PL_sv_undef)
		1013	PPCODE:
		1014	{
		1015	int fd = s_fileno_croak (fh, 0);
		1016	dREQ;
		1017
		1018	req->type = EIO_SYNC_FILE_RANGE;
		1019	req->sv1 = newSVsv (fh);
		1020	req->int1 = fd;
		1021	req->offs = offset;
		1022	req->size = nbytes;
		1023	req->int2 = flags;
		1024
		1025	REQ_SEND (req);
		1026	}
		1027
		1028	void
		1029	aio_fallocate (SV *fh, int mode, off_t offset, size_t len, SV *callback=&PL_sv_undef)
		1030	PPCODE:
		1031	{
		1032	int fd = s_fileno_croak (fh, 0);
		1033	dREQ;
		1034
		1035	req->type = EIO_FALLOCATE;
		1036	req->sv1 = newSVsv (fh);
		1037	req->int1 = fd;
		1038	req->int2 = mode;
		1039	req->offs = offset;
		1040	req->size = len;
		1041
		1042	REQ_SEND (req);
		1043	}
		1044
		1045	void
572	aio_close (SV *fh, SV *callback=&PL_sv_undef)	1046	aio_close (SV *fh, SV *callback=&PL_sv_undef)
573	PROTOTYPE: $;$
574	PPCODE:	1047	PPCODE:
575	{	1048	{
576	static int close_pipe = -1; /* dummy fd to close fds via dup2 */	1049	static int close_fd = -1; /* dummy fd to close fds via dup2 */
		1050	int fd = s_fileno_croak (fh, 0);
577	dREQ;	1051	dREQ;
578		1052
579	if (close_pipe < 0)	1053	if (expect_false (close_fd < 0))
580	{	1054	{
581	int pipefd [2];	1055	int pipefd [2];
582		1056
		1057	if (
		1058	#ifdef _WIN32
		1059	_pipe (pipefd, 1, _O_BINARY) < 0
		1060	#else
583	if (pipe (pipefd) < 0	1061	pipe (pipefd) < 0
584	|| close (pipefd [1]) < 0
585	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0)	1062	|| fcntl (pipefd [0], F_SETFD, FD_CLOEXEC) < 0
		1063	#endif
		1064	|| close (pipefd [1]) < 0
		1065	)
586	abort (); /*D*/	1066	abort (); /*D*/
587		1067
588	close_pipe = pipefd [0];	1068	close_fd = pipefd [0];
589	}	1069	}
590		1070
591	req->type = EIO_DUP2;	1071	req->type = EIO_DUP2;
592	req->int1 = close_pipe;	1072	req->int1 = close_fd;
593	req->sv2 = newSVsv (fh);	1073	req->sv2 = newSVsv (fh);
594	req->int2 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1074	req->int2 = fd;
595		1075
596	REQ_SEND (req);	1076	REQ_SEND (req);
597	}	1077	}
598		1078
599	void	1079	void
600	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)	1080	aio_read (SV *fh, SV *offset, SV *length, SV8 *data, IV dataoffset, SV *callback=&PL_sv_undef)
601	ALIAS:	1081	ALIAS:
602	aio_read = EIO_READ	1082	aio_read = EIO_READ
603	aio_write = EIO_WRITE	1083	aio_write = EIO_WRITE
604	PROTOTYPE: $$$$$;$
605	PPCODE:	1084	PPCODE:
606	{	1085	{
607	STRLEN svlen;	1086	STRLEN svlen;
		1087	int fd = s_fileno_croak (fh, ix == EIO_WRITE);
608	char *svptr = SvPVbyte (data, svlen);	1088	char *svptr = SvPVbyte (data, svlen);
609	UV len = SvUV (length);	1089	UV len = SvUV (length);
610
611	SvUPGRADE (data, SVt_PV);
612	SvPOK_on (data);
613		1090
614	if (dataoffset < 0)	1091	if (dataoffset < 0)
615	dataoffset += svlen;	1092	dataoffset += svlen;
616		1093
617	if (dataoffset < 0 || dataoffset > svlen)	1094	if (dataoffset < 0 || dataoffset > svlen)
…		…
623	if (!SvOK (length) || len + dataoffset > svlen)	1100	if (!SvOK (length) || len + dataoffset > svlen)
624	len = svlen - dataoffset;	1101	len = svlen - dataoffset;
625	}	1102	}
626	else	1103	else
627	{	1104	{
628	/* read: grow scalar as necessary */	1105	/* read: check type and grow scalar as necessary */
		1106	SvUPGRADE (data, SVt_PV);
629	svptr = SvGROW (data, len + dataoffset + 1);	1107	svptr = SvGROW (data, len + dataoffset + 1);
630	}	1108	}
631		1109
632	if (len < 0)
633	croak ("length must not be negative");
634
635	{	1110	{
636	dREQ;	1111	dREQ;
637		1112
638	req->type = ix;	1113	req->type = ix;
639	req->sv1 = newSVsv (fh);	1114	req->sv1 = newSVsv (fh);
640	req->int1 = PerlIO_fileno (ix == EIO_READ ? IoIFP (sv_2io (fh))	1115	req->int1 = fd;
641	: IoOFP (sv_2io (fh)));
642	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1116	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
643	req->size = len;	1117	req->size = len;
644	req->sv2 = SvREFCNT_inc (data);	1118	req->sv2 = SvREFCNT_inc (data);
645	req->ptr2 = (char *)svptr + dataoffset;	1119	req->ptr2 = (char *)svptr + dataoffset;
646	req->stroffset = dataoffset;	1120	req->stroffset = dataoffset;
…		…
655	}	1129	}
656	}	1130	}
657		1131
658	void	1132	void
659	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)	1133	aio_readlink (SV8 *path, SV *callback=&PL_sv_undef)
660	PROTOTYPE: $$;$	1134	ALIAS:
		1135	aio_readlink = EIO_READLINK
		1136	aio_realpath = EIO_REALPATH
661	PPCODE:	1137	PPCODE:
662	{	1138	{
663	SV *data;
664	dREQ;	1139	dREQ;
665		1140
666	data = newSV (NAME_MAX);
667	SvPOK_on (data);
668
669	req->type = EIO_READLINK;	1141	req->type = ix;
670	req->sv1 = newSVsv (path);	1142	req->sv1 = newSVsv (path);
671	req->ptr1 = SvPVbyte_nolen (req->sv1);	1143	req->ptr1 = SvPVbyte_nolen (req->sv1);
672	req->sv2 = data;
673	req->ptr2 = SvPVbyte_nolen (data);
674		1144
675	REQ_SEND;	1145	REQ_SEND;
676	}	1146	}
677		1147
678	void	1148	void
679	aio_sendfile (SV *out_fh, SV *in_fh, SV *in_offset, UV length, SV *callback=&PL_sv_undef)	1149	aio_sendfile (SV *out_fh, SV *in_fh, off_t in_offset, size_t length, SV *callback=&PL_sv_undef)
680	PROTOTYPE: $$$$;$
681	PPCODE:	1150	PPCODE:
682	{	1151	{
		1152	int ifd = s_fileno_croak (in_fh , 0);
		1153	int ofd = s_fileno_croak (out_fh, 1);
683	dREQ;	1154	dREQ;
684		1155
685	req->type = EIO_SENDFILE;	1156	req->type = EIO_SENDFILE;
686	req->sv1 = newSVsv (out_fh);	1157	req->sv1 = newSVsv (out_fh);
687	req->int1 = PerlIO_fileno (IoIFP (sv_2io (out_fh)));	1158	req->int1 = ofd;
688	req->sv2 = newSVsv (in_fh);	1159	req->sv2 = newSVsv (in_fh);
689	req->int2 = PerlIO_fileno (IoIFP (sv_2io (in_fh)));	1160	req->int2 = ifd;
690	req->offs = SvVAL64 (in_offset);	1161	req->offs = in_offset;
691	req->size = length;	1162	req->size = length;
692		1163
693	REQ_SEND;	1164	REQ_SEND;
694	}	1165	}
695		1166
696	void	1167	void
697	aio_readahead (SV *fh, SV *offset, IV length, SV *callback=&PL_sv_undef)	1168	aio_readahead (SV *fh, off_t offset, size_t length, SV *callback=&PL_sv_undef)
698	PROTOTYPE: $$$;$
699	PPCODE:	1169	PPCODE:
700	{	1170	{
		1171	int fd = s_fileno_croak (fh, 0);
701	dREQ;	1172	dREQ;
702		1173
703	req->type = EIO_READAHEAD;	1174	req->type = EIO_READAHEAD;
704	req->sv1 = newSVsv (fh);	1175	req->sv1 = newSVsv (fh);
705	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh)));	1176	req->int1 = fd;
706	req->offs = SvVAL64 (offset);	1177	req->offs = offset;
707	req->size = length;	1178	req->size = length;
708		1179
709	REQ_SEND;	1180	REQ_SEND;
710	}	1181	}
711		1182
712	void	1183	void
713	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)	1184	aio_stat (SV8 *fh_or_path, SV *callback=&PL_sv_undef)
714	ALIAS:	1185	ALIAS:
715	aio_stat = EIO_STAT	1186	aio_stat = EIO_STAT
716	aio_lstat = EIO_LSTAT	1187	aio_lstat = EIO_LSTAT
		1188	aio_statvfs = EIO_STATVFS
717	PPCODE:	1189	PPCODE:
718	{	1190	{
719	dREQ;	1191	dREQ;
720		1192
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);	1193	req->sv1 = newSVsv (fh_or_path);
730		1194
731	if (SvPOK (fh_or_path))	1195	if (SvPOK (req->sv1))
732	{	1196	{
733	req->type = ix;	1197	req->type = ix;
734	req->ptr1 = SvPVbyte_nolen (req->sv1);	1198	req->ptr1 = SvPVbyte_nolen (req->sv1);
735	}	1199	}
736	else	1200	else
737	{	1201	{
738	req->type = EIO_FSTAT;	1202	req->type = ix == EIO_STATVFS ? EIO_FSTATVFS : EIO_FSTAT;
739	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1203	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
740	}	1204	}
741		1205
742	REQ_SEND;	1206	REQ_SEND;
743	}	1207	}
		1208
		1209	UV
		1210	major (UV dev)
		1211	ALIAS:
		1212	minor = 1
		1213	CODE:
		1214	RETVAL = ix ? major (dev) : minor (dev);
		1215	OUTPUT:
		1216	RETVAL
		1217
		1218	UV
		1219	makedev (UV maj, UV min)
		1220	CODE:
		1221	RETVAL = makedev (maj, min);
		1222	OUTPUT:
		1223	RETVAL
744		1224
745	void	1225	void
746	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)	1226	aio_utime (SV8 *fh_or_path, SV *atime, SV *mtime, SV *callback=&PL_sv_undef)
747	PPCODE:	1227	PPCODE:
748	{	1228	{
…		…
750		1230
751	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;	1231	req->nv1 = SvOK (atime) ? SvNV (atime) : -1.;
752	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;	1232	req->nv2 = SvOK (mtime) ? SvNV (mtime) : -1.;
753	req->sv1 = newSVsv (fh_or_path);	1233	req->sv1 = newSVsv (fh_or_path);
754		1234
755	if (SvPOK (fh_or_path))	1235	if (SvPOK (req->sv1))
756	{	1236	{
757	req->type = EIO_UTIME;	1237	req->type = EIO_UTIME;
758	req->ptr1 = SvPVbyte_nolen (req->sv1);	1238	req->ptr1 = SvPVbyte_nolen (req->sv1);
759	}	1239	}
760	else	1240	else
…		…
773	dREQ;	1253	dREQ;
774		1254
775	req->sv1 = newSVsv (fh_or_path);	1255	req->sv1 = newSVsv (fh_or_path);
776	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;	1256	req->offs = SvOK (offset) ? SvVAL64 (offset) : -1;
777		1257
778	if (SvPOK (fh_or_path))	1258	if (SvPOK (req->sv1))
779	{	1259	{
780	req->type = EIO_TRUNCATE;	1260	req->type = EIO_TRUNCATE;
781	req->ptr1 = SvPVbyte_nolen (req->sv1);	1261	req->ptr1 = SvPVbyte_nolen (req->sv1);
782	}	1262	}
783	else	1263	else
…		…
791		1271
792	void	1272	void
793	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)	1273	aio_chmod (SV8 *fh_or_path, int mode, SV *callback=&PL_sv_undef)
794	ALIAS:	1274	ALIAS:
795	aio_chmod = EIO_CHMOD	1275	aio_chmod = EIO_CHMOD
796	aio_fchmod = EIO_FCHMOD
797	aio_mkdir = EIO_MKDIR	1276	aio_mkdir = EIO_MKDIR
798	PPCODE:	1277	PPCODE:
799	{	1278	{
800	dREQ;	1279	dREQ;
801		1280
802	req->type = ix;
803	req->int2 = mode;	1281	req->int2 = mode;
804	req->sv1 = newSVsv (fh_or_path);	1282	req->sv1 = newSVsv (fh_or_path);
805		1283
806	if (ix == EIO_FCHMOD)	1284	if (SvPOK (req->sv1))
807	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));	1285	{
		1286	req->type = ix;
		1287	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1288	}
808	else	1289	else
809	req->ptr1 = SvPVbyte_nolen (req->sv1);	1290	{
		1291	req->type = EIO_FCHMOD;
		1292	req->int1 = PerlIO_fileno (IoIFP (sv_2io (fh_or_path)));
		1293	}
810		1294
811	REQ_SEND;	1295	REQ_SEND;
812	}	1296	}
813		1297
814	void	1298	void
…		…
819		1303
820	req->int2 = SvOK (uid) ? SvIV (uid) : -1;	1304	req->int2 = SvOK (uid) ? SvIV (uid) : -1;
821	req->int3 = SvOK (gid) ? SvIV (gid) : -1;	1305	req->int3 = SvOK (gid) ? SvIV (gid) : -1;
822	req->sv1 = newSVsv (fh_or_path);	1306	req->sv1 = newSVsv (fh_or_path);
823		1307
824	if (SvPOK (fh_or_path))	1308	if (SvPOK (req->sv1))
825	{	1309	{
826	req->type = EIO_CHOWN;	1310	req->type = EIO_CHOWN;
827	req->ptr1 = SvPVbyte_nolen (req->sv1);	1311	req->ptr1 = SvPVbyte_nolen (req->sv1);
828	}	1312	}
829	else	1313	else
…		…
834		1318
835	REQ_SEND;	1319	REQ_SEND;
836	}	1320	}
837		1321
838	void	1322	void
		1323	aio_readdirx (SV8 *pathname, IV flags, SV *callback=&PL_sv_undef)
		1324	PPCODE:
		1325	{
		1326	dREQ;
		1327
		1328	req->type = EIO_READDIR;
		1329	req->sv1 = newSVsv (pathname);
		1330	req->ptr1 = SvPVbyte_nolen (req->sv1);
		1331	req->int1 = flags | EIO_READDIR_DENTS | EIO_READDIR_CUSTOM1;
		1332
		1333	if (flags & EIO_READDIR_DENTS)
		1334	req->int1 |= EIO_READDIR_CUSTOM2;
		1335
		1336	REQ_SEND;
		1337	}
		1338
		1339	void
839	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)	1340	aio_unlink (SV8 *pathname, SV *callback=&PL_sv_undef)
840	ALIAS:	1341	ALIAS:
841	aio_unlink = EIO_UNLINK	1342	aio_unlink = EIO_UNLINK
842	aio_rmdir = EIO_RMDIR	1343	aio_rmdir = EIO_RMDIR
843	aio_readdir = EIO_READDIR	1344	aio_readdir = EIO_READDIR
…		…
885		1386
886	REQ_SEND;	1387	REQ_SEND;
887	}	1388	}
888		1389
889	void	1390	void
		1391	aio_mtouch (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, int flags = 0, SV *callback=&PL_sv_undef)
		1392	ALIAS:
		1393	aio_mtouch = EIO_MTOUCH
		1394	aio_msync = EIO_MSYNC
		1395	PPCODE:
		1396	{
		1397	STRLEN svlen;
		1398	char *svptr = SvPVbyte (data, svlen);
		1399	UV len = SvUV (length);
		1400
		1401	if (offset < 0)
		1402	offset += svlen;
		1403
		1404	if (offset < 0 || offset > svlen)
		1405	croak ("offset outside of scalar");
		1406
		1407	if (!SvOK (length) || len + offset > svlen)
		1408	len = svlen - offset;
		1409
		1410	{
		1411	dREQ;
		1412
		1413	req->type = ix;
		1414	req->sv2 = SvREFCNT_inc (data);
		1415	req->ptr2 = (char *)svptr + offset;
		1416	req->size = len;
		1417	req->int1 = flags;
		1418
		1419	REQ_SEND;
		1420	}
		1421	}
		1422
		1423	void
		1424	aio_mlock (SV8 *data, IV offset = 0, SV *length = &PL_sv_undef, SV *callback=&PL_sv_undef)
		1425	PPCODE:
		1426	{
		1427	STRLEN svlen;
		1428	char *svptr = SvPVbyte (data, svlen);
		1429	UV len = SvUV (length);
		1430
		1431	if (offset < 0)
		1432	offset += svlen;
		1433
		1434	if (offset < 0 || offset > svlen)
		1435	croak ("offset outside of scalar");
		1436
		1437	if (!SvOK (length) || len + offset > svlen)
		1438	len = svlen - offset;
		1439
		1440	{
		1441	dREQ;
		1442
		1443	req->type = EIO_MLOCK;
		1444	req->sv2 = SvREFCNT_inc (data);
		1445	req->ptr2 = (char *)svptr + offset;
		1446	req->size = len;
		1447
		1448	REQ_SEND;
		1449	}
		1450	}
		1451
		1452	void
		1453	aio_mlockall (IV flags, SV *callback=&PL_sv_undef)
		1454	PPCODE:
		1455	{
		1456	dREQ;
		1457
		1458	req->type = EIO_MLOCKALL;
		1459	req->int1 = flags;
		1460
		1461	REQ_SEND;
		1462	}
		1463
		1464	void
890	aio_busy (double delay, SV *callback=&PL_sv_undef)	1465	aio_busy (double delay, SV *callback=&PL_sv_undef)
891	PPCODE:	1466	PPCODE:
892	{	1467	{
893	dREQ;	1468	dREQ;
894		1469
…		…
898	REQ_SEND;	1473	REQ_SEND;
899	}	1474	}
900		1475
901	void	1476	void
902	aio_group (SV *callback=&PL_sv_undef)	1477	aio_group (SV *callback=&PL_sv_undef)
903	PROTOTYPE: ;$
904	PPCODE:	1478	PPCODE:
905	{	1479	{
906	dREQ;	1480	dREQ;
907		1481
908	req->type = EIO_GROUP;	1482	req->type = EIO_GROUP;
909		1483
910	eio_submit (req);	1484	req_submit (req);
911	XPUSHs (req_sv (req, AIO_GRP_KLASS));	1485	XPUSHs (req_sv (req, aio_grp_stash));
912	}	1486	}
913		1487
914	void	1488	void
915	aio_nop (SV *callback=&PL_sv_undef)	1489	aio_nop (SV *callback=&PL_sv_undef)
916	ALIAS:	1490	ALIAS:
…		…
925	REQ_SEND;	1499	REQ_SEND;
926	}	1500	}
927		1501
928	int	1502	int
929	aioreq_pri (int pri = 0)	1503	aioreq_pri (int pri = 0)
930	PROTOTYPE: ;$
931	CODE:	1504	CODE:
932	RETVAL = next_pri - EIO_PRI_BIAS;	1505	RETVAL = next_pri;
933	if (items > 0)	1506	if (items > 0)
934	{	1507	{
935	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;	1508	if (pri < EIO_PRI_MIN) pri = EIO_PRI_MIN;
936	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;	1509	if (pri > EIO_PRI_MAX) pri = EIO_PRI_MAX;
937	next_pri = pri + EIO_PRI_BIAS;	1510	next_pri = pri;
938	}	1511	}
939	OUTPUT:	1512	OUTPUT:
940	RETVAL	1513	RETVAL
941		1514
942	void	1515	void
943	aioreq_nice (int nice = 0)	1516	aioreq_nice (int nice = 0)
944	CODE:	1517	CODE:
945	nice = next_pri - nice;	1518	nice = next_pri - nice;
946	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;	1519	if (nice < EIO_PRI_MIN) nice = EIO_PRI_MIN;
947	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;	1520	if (nice > EIO_PRI_MAX) nice = EIO_PRI_MAX;
948	next_pri = nice + EIO_PRI_BIAS;	1521	next_pri = nice;
949		1522
950	void	1523	void
951	flush ()	1524	flush ()
952	PROTOTYPE:
953	CODE:	1525	CODE:
954	while (eio_nreqs ())	1526	while (eio_nreqs ())
955	{	1527	{
956	poll_wait ();	1528	poll_wait ();
957	poll_cb ();	1529	poll_cb ();
958	}	1530	}
959		1531
960	int	1532	int
961	poll()	1533	poll ()
962	PROTOTYPE:
963	CODE:	1534	CODE:
964	poll_wait ();	1535	poll_wait ();
965	RETVAL = poll_cb ();	1536	RETVAL = poll_cb ();
966	OUTPUT:	1537	OUTPUT:
967	RETVAL	1538	RETVAL
968		1539
969	int	1540	int
970	poll_fileno()	1541	poll_fileno ()
971	PROTOTYPE:
972	CODE:	1542	CODE:
973	RETVAL = respipe [0];	1543	RETVAL = s_epipe_fd (&respipe);
974	OUTPUT:	1544	OUTPUT:
975	RETVAL	1545	RETVAL
976		1546
977	int	1547	int
978	poll_cb(...)	1548	poll_cb (...)
979	PROTOTYPE:	1549	PROTOTYPE:
980	CODE:	1550	CODE:
981	RETVAL = poll_cb ();	1551	RETVAL = poll_cb ();
982	OUTPUT:	1552	OUTPUT:
983	RETVAL	1553	RETVAL
984		1554
985	void	1555	void
986	poll_wait()	1556	poll_wait ()
987	PROTOTYPE:
988	CODE:	1557	CODE:
989	poll_wait ();	1558	poll_wait ();
990		1559
991	int	1560	int
992	nreqs()	1561	nreqs ()
993	PROTOTYPE:
994	CODE:	1562	CODE:
995	RETVAL = eio_nreqs ();	1563	RETVAL = eio_nreqs ();
996	OUTPUT:	1564	OUTPUT:
997	RETVAL	1565	RETVAL
998		1566
999	int	1567	int
1000	nready()	1568	nready ()
1001	PROTOTYPE:
1002	CODE:	1569	CODE:
1003	RETVAL = eio_nready ();	1570	RETVAL = eio_nready ();
1004	OUTPUT:	1571	OUTPUT:
1005	RETVAL	1572	RETVAL
1006		1573
1007	int	1574	int
1008	npending()	1575	npending ()
1009	PROTOTYPE:
1010	CODE:	1576	CODE:
1011	RETVAL = eio_npending ();	1577	RETVAL = eio_npending ();
1012	OUTPUT:	1578	OUTPUT:
1013	RETVAL	1579	RETVAL
1014		1580
1015	int	1581	int
1016	nthreads()	1582	nthreads ()
1017	PROTOTYPE:
1018	CODE:	1583	CODE:
1019	if (WORDACCESS_UNSAFE) X_LOCK (wrklock);	1584	RETVAL = eio_nthreads ();
1020	RETVAL = started;
1021	if (WORDACCESS_UNSAFE) X_UNLOCK (wrklock);
1022	OUTPUT:	1585	OUTPUT:
1023	RETVAL	1586	RETVAL
1024		1587
		1588	int
		1589	fadvise (aio_rfd fh, off_t offset, off_t length, IV advice)
		1590	CODE:
		1591	RETVAL = posix_fadvise (fh, offset, length, advice);
		1592	OUTPUT:
		1593	RETVAL
		1594
		1595	ssize_t
		1596	sendfile (aio_wfd ofh, aio_rfd ifh, off_t offset, size_t count)
		1597	CODE:
		1598	RETVAL = eio_sendfile_sync (ofh, ifh, offset, count);
		1599	OUTPUT:
		1600	RETVAL
		1601
		1602	void
		1603	mmap (SV *scalar, size_t length, int prot, int flags, SV *fh, off_t offset = 0)
		1604	PPCODE:
		1605	sv_unmagic (scalar, MMAP_MAGIC);
		1606	{
		1607	int fd = SvOK (fh) ? s_fileno_croak (fh, flags & PROT_WRITE) : -1;
		1608	void *addr = (void *)mmap (0, length, prot, flags, fd, offset);
		1609	if (addr == (void *)-1)
		1610	XSRETURN_NO;
		1611
		1612	sv_force_normal (scalar);
		1613
		1614	/* we store the length in mg_obj, as namlen is I32 :/ */
		1615	sv_magicext (scalar, 0, MMAP_MAGIC, &mmap_vtbl, (char *)addr, 0)
		1616	->mg_obj = (SV *)length;
		1617
		1618	SvUPGRADE (scalar, SVt_PV); /* nop... */
		1619
		1620	if (!(prot & PROT_WRITE))
		1621	SvREADONLY_on (scalar);
		1622
		1623	if (SvLEN (scalar))
		1624	Safefree (SvPVX (scalar));
		1625
		1626	SvPVX (scalar) = (char *)addr;
		1627	SvCUR_set (scalar, length);
		1628	SvLEN_set (scalar, 0);
		1629	SvPOK_only (scalar);
		1630
		1631	XSRETURN_YES;
		1632	}
		1633
		1634	void
		1635	munmap (SV *scalar)
		1636	CODE:
		1637	sv_unmagic (scalar, MMAP_MAGIC);
		1638
		1639	int
		1640	madvise (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef, IV advice_or_prot)
		1641	ALIAS:
		1642	mprotect = 1
		1643	CODE:
		1644	{
		1645	STRLEN svlen;
		1646	void *addr = SvPVbyte (scalar, svlen);
		1647	size_t len = SvUV (length);
		1648
		1649	if (offset < 0)
		1650	offset += svlen;
		1651
		1652	if (offset < 0 || offset > svlen)
		1653	croak ("offset outside of scalar");
		1654
		1655	if (!SvOK (length) || len + offset > svlen)
		1656	len = svlen - offset;
		1657
		1658	addr = (void *)(((intptr_t)addr) + offset);
		1659	eio_page_align (&addr, &len);
		1660
		1661	switch (ix)
		1662	{
		1663	case 0: RETVAL = posix_madvise (addr, len, advice_or_prot); break;
		1664	case 1: RETVAL = mprotect (addr, len, advice_or_prot); break;
		1665	}
		1666	}
		1667	OUTPUT:
		1668	RETVAL
		1669
		1670	int
		1671	munlock (SV *scalar, off_t offset = 0, SV *length = &PL_sv_undef)
		1672	CODE:
		1673	{
		1674	STRLEN svlen;
		1675	void *addr = SvPVbyte (scalar, svlen);
		1676	size_t len = SvUV (length);
		1677
		1678	if (offset < 0)
		1679	offset += svlen;
		1680
		1681	if (offset < 0 || offset > svlen)
		1682	croak ("offset outside of scalar");
		1683
		1684	if (!SvOK (length) || len + offset > svlen)
		1685	len = svlen - offset;
		1686
		1687	addr = (void *)(((intptr_t)addr) + offset);
		1688	eio_page_align (&addr, &len);
		1689	#if _POSIX_MEMLOCK_RANGE
		1690	RETVAL = munlock (addr, len);
		1691	#else
		1692	RETVAL = ((errno = ENOSYS), -1);
		1693	#endif
		1694	}
		1695	OUTPUT:
		1696	RETVAL
		1697
		1698	int
		1699	munlockall ()
		1700	CODE:
		1701	#if _POSIX_MEMLOCK
		1702	munlockall ();
		1703	#else
		1704	RETVAL = -1;
		1705	errno = ENOSYS;
		1706	#endif
		1707	OUTPUT:
		1708	RETVAL
		1709
1025	void _on_next_submit (SV *cb)	1710	void _on_next_submit (SV *cb)
1026	CODE:	1711	CODE:
1027	SvREFCNT_dec (on_next_submit);	1712	SvREFCNT_dec (on_next_submit);
1028	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;	1713	on_next_submit = SvOK (cb) ? newSVsv (cb) : 0;
1029		1714
…		…
1036	CODE:	1721	CODE:
1037	eio_cancel (req);	1722	eio_cancel (req);
1038		1723
1039	void	1724	void
1040	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)	1725	cb (aio_req_ornot req, SV *callback=&PL_sv_undef)
1041	CODE:	1726	PPCODE:
		1727	{
		1728	if (GIMME_V != G_VOID)
		1729	XPUSHs (req->callback ? sv_2mortal (newRV_inc (req->callback)) : &PL_sv_undef);
		1730
		1731	if (items > 1)
		1732	{
		1733	SV *cb_cv =get_cb (callback);
		1734
1042	SvREFCNT_dec (req->callback);	1735	SvREFCNT_dec (req->callback);
1043	req->callback = newSVsv (callback);	1736	req->callback = SvREFCNT_inc (cb_cv);
		1737	}
		1738	}
1044		1739
1045	MODULE = IO::AIO PACKAGE = IO::AIO::GRP	1740	MODULE = IO::AIO PACKAGE = IO::AIO::GRP
1046		1741
1047	void	1742	void
1048	add (aio_req grp, ...)	1743	add (aio_req grp, ...)
…		…
1080	AV *av;	1775	AV *av;
1081		1776
1082	grp->errorno = errno;	1777	grp->errorno = errno;
1083		1778
1084	av = newAV ();	1779	av = newAV ();
		1780	av_extend (av, items - 1);
1085		1781
1086	for (i = 1; i < items; ++i )	1782	for (i = 1; i < items; ++i )
1087	av_push (av, newSVsv (ST (i)));	1783	av_push (av, newSVsv (ST (i)));
1088		1784
1089	SvREFCNT_dec (grp->sv1);	1785	SvREFCNT_dec (grp->sv1);
…		…
1103	void	1799	void
1104	feed (aio_req grp, SV *callback=&PL_sv_undef)	1800	feed (aio_req grp, SV *callback=&PL_sv_undef)
1105	CODE:	1801	CODE:
1106	{	1802	{
1107	SvREFCNT_dec (grp->sv2);	1803	SvREFCNT_dec (grp->sv2);
1108	grp->sv2 = newSVsv (callback);	1804	grp->sv2 = newSVsv (callback);
		1805	grp->feed = aio_grp_feed;
1109		1806
1110	if (grp->int2 <= 0)	1807	if (grp->int2 <= 0)
1111	grp->int2 = 2;	1808	grp->int2 = 2;
1112		1809
1113	eio_grp_limit (grp, grp->int2);	1810	eio_grp_limit (grp, grp->int2);

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