freebsd-nq/sys/sys/msgbuf.h
Peter Wemm 8f670c3d88 Increase the default msgbuf size from 8k to 32k. Boot -v easily
overflows the default buffer making it too hard to get a dmesg from
a verbose boot.  It's still changeable via an option, so if picobsd
needs to set it to something else they still can.

Reviewed by:	phk, alfred
2000-01-29 15:29:11 +00:00

61 lines
2.3 KiB
C

/*
* Copyright (c) 1981, 1984, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)msgbuf.h 8.1 (Berkeley) 6/2/93
* $FreeBSD$
*/
#ifndef _SYS_MSGBUF_H_
#define _SYS_MSGBUF_H_
struct msgbuf {
#define MSG_MAGIC 0x063062
unsigned int msg_magic;
unsigned int msg_size; /* size of buffer area */
unsigned int msg_bufx; /* write pointer */
unsigned int msg_bufr; /* read pointer */
char * msg_ptr; /* pointer to buffer */
};
#ifdef _KERNEL
extern int msgbufmapped;
extern struct msgbuf *msgbufp;
void msgbufinit __P((void *ptr, size_t size));
#if !defined(MSGBUF_SIZE)
#define MSGBUF_SIZE 32768
#endif
#endif
#endif