Home | History | Annotate | Line # | Download | only in common
linux_msg.h revision 1.2 
      1 /*	$NetBSD: linux_msg.h,v 1.2 1995/08/15 21:14:34 fvdl Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1995 Frank van der Linden
      5  * 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. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *      This product includes software developed for the NetBSD Project
     18  *      by Frank van der Linden
     19  * 4. The name of the author may not be used to endorse or promote products
     20  *    derived from this software without specific prior written permission
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     23  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     24  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     25  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     26  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     27  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     31  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 #ifndef _LINUX_MSG_H
     35 #define _LINUX_MSG_H
     36 
     37 /*
     38  * msq_id_ds structure. Mostly the same fields, except for some internal
     39  * ones.
     40  */
     41 struct linux_msqid_ds {
     42 	struct linux_ipc_perm	l_msg_perm;
     43 	void			*l_msg_first;
     44 	void			*l_msg_last;
     45 	linux_time_t		l_msg_stime;
     46 	linux_time_t		l_msg_rtime;
     47 	linux_time_t		l_msg_ctime;
     48 	void			*l_wwait;	/* Linux internal */
     49 	void			*l_rwait;	/* Linux internal */
     50 	ushort			l_msg_cbytes;
     51 	ushort			l_msg_qnum;
     52 	ushort			l_msg_qbytes;
     53 	ushort			l_msg_lspid;
     54 	ushort			l_msg_lrpid;
     55 };
     56 
     57 #define LINUX_MSG_NOERROR	0x1000
     58 #define LINUX_MSG_EXCEPT	0x2000
     59 
     60 /*
     61  * The notorious anonymous message structure.
     62  */
     63 struct linux_mymsg {
     64 	long	l_mtype;
     65 	char	l_mtext[1];
     66 };
     67 
     68 /*
     69  * This kludge is used for the 6th argument to the msgrcv system
     70  * call, to get around the maximum of 5 arguments to a syscall in Linux.
     71  */
     72 struct linux_msgrcv_msgarg {
     73 	struct linux_mymsg *msg;
     74 	int type;
     75 };
     76 /*
     77  * For msgctl calls.
     78  */
     79 struct linux_msginfo {
     80 	int	l_msgpool;
     81 	int	l_msgmap;
     82 	int	l_msgmax;
     83 	int	l_msgmnb;
     84 	int	l_msgmni;
     85 	int	l_msgssz;
     86 	int	l_msgtql;
     87 	ushort	l_msgseg;
     88 };
     89 
     90 #define LINUX_MSG_STAT	11
     91 #define LINUX_MSG_INFO	12
     92 
     93 #endif /* _LINUX_MSG_H */
     94