1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#ifndef _SYS_AIOCB_H
28#define	_SYS_AIOCB_H
29
30#pragma ident	"%Z%%M%	%I%	%E% SMI"
31
32#include <sys/types.h>
33#include <sys/fcntl.h>
34#include <sys/siginfo.h>
35#include <sys/aio.h>
36
37#ifdef __cplusplus
38extern "C" {
39#endif
40
41typedef struct aiocb {
42	int 		aio_fildes;
43#if	defined(__STDC__)
44	volatile void	*aio_buf;		/* buffer location */
45#else
46	void		*aio_buf;		/* buffer location */
47#endif
48	size_t 		aio_nbytes;		/* length of transfer */
49	off_t 		aio_offset;		/* file offset */
50	int		aio_reqprio;		/* request priority offset */
51	struct sigevent	aio_sigevent;		/* notification type */
52	int 		aio_lio_opcode;		/* listio operation */
53	aio_result_t	aio_resultp;		/* results */
54	int 		aio_state;		/* state flag for List I/O */
55	int		aio__pad[1];		/* extension padding */
56} aiocb_t;
57
58#ifdef _LARGEFILE64_SOURCE
59#if	!defined(_KERNEL)
60typedef struct aiocb64 {
61	int 		aio_fildes;
62#if	defined(__STDC__)
63	volatile void	*aio_buf;		/* buffer location */
64#else
65	void		*aio_buf;		/* buffer location */
66#endif
67	size_t 		aio_nbytes;		/* length of transfer */
68	off64_t		aio_offset;		/* file offset */
69	int		aio_reqprio;		/* request priority offset */
70	struct sigevent	aio_sigevent;		/* notification type */
71	int 		aio_lio_opcode;		/* listio operation */
72	aio_result_t	aio_resultp;		/* results */
73	int 		aio_state;		/* state flag for List I/O */
74	int		aio__pad[1];		/* extension padding */
75} aiocb64_t;
76#else
77
78#if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
79#pragma pack(4)
80#endif
81
82typedef struct aiocb64_32 {
83	int 		aio_fildes;
84	caddr32_t	aio_buf;		/* buffer location */
85	uint32_t 	aio_nbytes;		/* length of transfer */
86	off64_t 	aio_offset;		/* file offset */
87	int		aio_reqprio;		/* request priority offset */
88	struct sigevent32 aio_sigevent;		/* notification type */
89	int 		aio_lio_opcode;		/* listio operation */
90	aio_result32_t	aio_resultp;		/* results */
91	int 		aio_state;		/* state flag for List I/O */
92	int		aio__pad[1];		/* extension padding */
93} aiocb64_32_t;
94
95#if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
96#pragma pack()
97#endif
98
99#endif /* !defined(_KERNEL) */
100#endif /* _LARGEFILE64_SOURCE */
101
102#ifdef	_SYSCALL32
103typedef struct aiocb32 {
104	int 		aio_fildes;
105	caddr32_t	aio_buf;		/* buffer location */
106	uint32_t	aio_nbytes;		/* length of transfer */
107	uint32_t	aio_offset;		/* file offset */
108	int		aio_reqprio;		/* request priority offset */
109	struct sigevent32 aio_sigevent;		/* notification type */
110	int 		aio_lio_opcode;		/* listio operation */
111	aio_result32_t	aio_resultp;		/* results */
112	int 		aio_state;		/* state flag for List I/O */
113	int		aio__pad[1];		/* extension padding */
114} aiocb32_t;
115
116#endif /* _SYSCALL32 */
117/*
118 * return values for aiocancel()
119 */
120#define	AIO_CANCELED	0
121#define	AIO_ALLDONE	1
122#define	AIO_NOTCANCELED	2
123
124/*
125 * mode values for lio_listio()
126 */
127#define	LIO_NOWAIT	0
128#define	LIO_WAIT	1
129
130
131/*
132 * listio operation codes
133 *
134 * LIO_READ and LIO_WRITE were previously defined as FREAD and FWRITE as
135 * defined in <sys/file.h>.  However, inclusion of <sys/file.h> results
136 * in X/Open namespace pollution and as such is no longer included in
137 * this header.  The values of LIO_READ and LIO_WRITE must be identical
138 * to the values of FREAD and FWRITE in <sys/file.h>.  Any change to one
139 * will require a change to the other.
140 */
141
142#define	LIO_NOP		0
143#define	LIO_READ	0x01	/* Must match value of FREAD in sys/file.h */
144#define	LIO_WRITE	0x02	/* Must match value of FWRITE in sys/file.h */
145
146#ifdef	__cplusplus
147}
148#endif
149
150#endif /* _SYS_AIOCB_H */
151