| 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 | |