msg.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* 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
* 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 1987 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984 AT&T */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* IPC Message Facility.
*/
#ifndef _sys_msg_h
#define _sys_msg_h
/*
* Message Operation Flags.
*/
/*
* Structure Definitions.
*/
/*
* There is one msg queue id data structure for each q in the system.
*/
struct msqid_ds {
};
/*
* User message buffer template for msgsnd and msgrcv system calls.
*/
/* HACK :: change the name when compiling the kernel to avoid conflicts */
#ifdef KERNEL
struct ipcmsgbuf {
#else
struct msgbuf {
#endif KERNEL
long mtype; /* message type */
};
/*
* There is one msg structure for each message that may be in the system.
*/
struct msg {
long msg_type; /* message type */
};
#ifdef KERNEL
/*
* Implementation Constants.
*/
/*
* Permission Definitions.
*/
/*
* ipc_perm Mode Definitions.
*/
/* define resource locking macros */
}
return (NULL); \
} \
} \
}
} \
}
/*
* Message information structure.
*/
struct msginfo {
int msgmap, /* # of entries in msg map */
msgmax, /* max message size */
msgmnb, /* max # bytes on queue */
msgmni, /* # of message queue identifiers */
msgssz, /* msg segment size (should be word size multiple) */
msgtql; /* # of system message headers */
};
/*
* Configuration Parameters
* These parameters are tuned by editing the system configuration file.
* The following lines establish the default values.
*/
#ifndef MSGPOOL
#endif
#ifndef MSGMNB
#endif
#ifndef MSGMNI
#endif
#ifndef MSGTQL
#endif
/* The following parameters are assumed not to require tuning */
#ifndef MSGMAP
#endif
#ifndef MSGMAX
#endif
#ifndef MSGSSZ
#endif
/*
* Structures allocated in machdep.c
*/
char *msg; /* base address of message buffer */
#endif KERNEL
#endif /*!_sys_msg_h*/