summaryrefslogtreecommitdiff
path: root/usr/src/head/aio.h
blob: ee2fb776eea939bd79ec424a6f2f0b58e45eccf1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2014 Garrett D'Amore <garrett@damore.org>
 *
 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef _AIO_H
#define	_AIO_H

#include <sys/feature_tests.h>
#include <sys/types.h>
#include <sys/fcntl.h>
#include <sys/siginfo.h>
#include <sys/aiocb.h>
#include <time.h>

#ifdef	__cplusplus
extern "C" {
#endif

#if	(_POSIX_C_SOURCE - 0 > 0) && (_POSIX_C_SOURCE - 0 <= 2)
#error	"POSIX Asynchronous I/O is not supported in POSIX.1-1990"
#endif

/* large file compilation environment setup */
#if !defined(_LP64) && _FILE_OFFSET_BITS == 64
#ifdef __PRAGMA_REDEFINE_EXTNAME
#pragma	redefine_extname	aio_read	aio_read64
#pragma	redefine_extname	aio_write	aio_write64
#pragma	redefine_extname	lio_listio	lio_listio64
#pragma	redefine_extname	aio_error	aio_error64
#pragma	redefine_extname	aio_return	aio_return64
#pragma	redefine_extname	aio_cancel	aio_cancel64
#pragma	redefine_extname	aio_suspend	aio_suspend64
#pragma	redefine_extname	aio_fsync	aio_fsync64
#pragma	redefine_extname	aio_waitn	aio_waitn64
#else
#define	aiocb		aiocb64
#define	aiocb_t		aiocb64_t
#define	aio_read	aio_read64
#define	aio_write	aio_write64
#define	lio_listio	lio_listio64
#define	aio_error	aio_error64
#define	aio_return	aio_return64
#define	aio_cancel	aio_cancel64
#define	aio_suspend	aio_suspend64
#define	aio_fsync	aio_fsync64
#define	aio_waitn	aio_waitn64
#endif
#endif /* !_LP64 && _FILE_OFFSET_BITS == 64 */

#if defined(_LP64) && defined(_LARGEFILE64_SOURCE)
/*
 * In the LP64 compilation environment, map the 64-bit-explicit versions
 * back to the generic versions: all i/o operations are already "large file"
 */
#ifdef __PRAGMA_REDEFINE_EXTNAME
#pragma	redefine_extname	aio_read64	aio_read
#pragma	redefine_extname	aio_write64	aio_write
#pragma	redefine_extname	lio_listio64	lio_listio
#pragma	redefine_extname	aio_error64	aio_error
#pragma	redefine_extname	aio_return64	aio_return
#pragma	redefine_extname	aio_cancel64	aio_cancel
#pragma	redefine_extname	aio_suspend64	aio_suspend
#pragma	redefine_extname	aio_fsync64	aio_fsync
#pragma	redefine_extname	aio_waitn64	aio_waitn
#else
#define	aiocb64		aiocb
#define	aiocb64_t	aiocb_t
#define	aio_read64	aio_read
#define	aio_write64	aio_write
#define	lio_listio64	lio_listio
#define	aio_error64	aio_error
#define	aio_return64	aio_return
#define	aio_cancel64	aio_cancel
#define	aio_suspend64	aio_suspend
#define	aio_fsync64	aio_fsync
#define	aio_waitn64	aio_waitn
#endif
#endif	/* _LP64 && _LARGEFILE64_SOURCE */

/*
 * function prototypes
 */
extern int	aio_read(aiocb_t *);
extern int	aio_write(aiocb_t *);
extern int	lio_listio(int,
		    aiocb_t *_RESTRICT_KYWD const *_RESTRICT_KYWD,
		    int, struct sigevent *_RESTRICT_KYWD);
extern int	aio_error(const aiocb_t *);
extern ssize_t	aio_return(aiocb_t *);
extern int	aio_cancel(int, aiocb_t *);
extern int	aio_suspend(const aiocb_t *const[], int,
		    const struct timespec *);
extern int	aio_fsync(int, aiocb_t *);
extern int	aio_waitn(aiocb_t *[], uint_t, uint_t *,
		    const struct timespec *);


#if defined(_LARGEFILE64_SOURCE) && !((_FILE_OFFSET_BITS == 64) && \
	!defined(__PRAGMA_REDEFINE_EXTNAME))
extern int	aio_read64(aiocb64_t *);
extern int	aio_write64(aiocb64_t *);
extern int	lio_listio64(int,
			aiocb64_t *_RESTRICT_KYWD const *_RESTRICT_KYWD,
			int, struct sigevent *_RESTRICT_KYWD);
extern int	aio_error64(const aiocb64_t *);
extern ssize_t	aio_return64(aiocb64_t *);
extern int	aio_cancel64(int, aiocb64_t *);
extern int	aio_suspend64(const aiocb64_t *const[], int,
			const struct timespec *);
extern int	aio_fsync64(int, aiocb64_t *);
extern int	aio_waitn64(aiocb64_t *[], uint_t, uint_t *,
		    const struct timespec *);
#endif	/* _LARGEFILE64_SOURCE */

#ifdef	__cplusplus
}
#endif

#endif	/* _AIO_H */