1 | /* $NetBSD: msgbuf.h,v 1.15 2007/11/07 00:19:08 ad Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (c) 1981, 1984, 1993 |
5 | * The Regents of the University of California. All rights reserved. |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
8 | * modification, are permitted provided that the following conditions |
9 | * are met: |
10 | * 1. Redistributions of source code must retain the above copyright |
11 | * notice, this list of conditions and the following disclaimer. |
12 | * 2. Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
15 | * 3. Neither the name of the University nor the names of its contributors |
16 | * may be used to endorse or promote products derived from this software |
17 | * without specific prior written permission. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
23 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
29 | * SUCH DAMAGE. |
30 | * |
31 | * @(#)msgbuf.h 8.1 (Berkeley) 6/2/93 |
32 | */ |
33 | |
34 | #ifndef _SYS_MSGBUF_H_ |
35 | #define _SYS_MSGBUF_H_ |
36 | |
37 | struct kern_msgbuf { |
38 | #define MSG_MAGIC 0x063061 |
39 | long msg_magic; |
40 | long msg_bufx; /* write pointer */ |
41 | long msg_bufr; /* read pointer */ |
42 | long msg_bufs; /* real msg_bufc size (bytes) */ |
43 | char msg_bufc[1]; /* buffer */ |
44 | }; |
45 | |
46 | #ifdef _KERNEL |
47 | extern int msgbufmapped; /* is the message buffer mapped */ |
48 | extern int msgbufenabled; /* is logging to the buffer enabled */ |
49 | extern struct kern_msgbuf *msgbufp; /* the mapped buffer, itself. */ |
50 | |
51 | void initmsgbuf(void *, size_t); |
52 | void loginit(void); |
53 | void logputchar(int); |
54 | #endif |
55 | |
56 | #endif /* !_SYS_MSGBUF_H_ */ |
57 | |