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author | rgrimes <rgrimes@FreeBSD.org> | 1994-05-24 10:09:53 +0000 |
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committer | rgrimes <rgrimes@FreeBSD.org> | 1994-05-24 10:09:53 +0000 |
commit | 8fb65ce818b3e3c6f165b583b910af24000768a5 (patch) | |
tree | ba751e4f2166aefec707c9d7401c7ff432506642 /sys/sys/ipc.h | |
parent | a6ce65d368e623088a4c1a29865889f431b15420 (diff) | |
download | FreeBSD-src-8fb65ce818b3e3c6f165b583b910af24000768a5.zip FreeBSD-src-8fb65ce818b3e3c6f165b583b910af24000768a5.tar.gz |
BSD 4.4 Lite Kernel Sources
Diffstat (limited to 'sys/sys/ipc.h')
-rw-r--r-- | sys/sys/ipc.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/sys/sys/ipc.h b/sys/sys/ipc.h new file mode 100644 index 0000000..cc036a8 --- /dev/null +++ b/sys/sys/ipc.h @@ -0,0 +1,79 @@ +/* + * Copyright (c) 1988 University of Utah. + * Copyright (c) 1990, 1993 + * The Regents of the University of California. All rights reserved. + * (c) UNIX System Laboratories, Inc. + * All or some portions of this file are derived from material licensed + * to the University of California by American Telephone and Telegraph + * Co. or Unix System Laboratories, Inc. and are reproduced herein with + * the permission of UNIX System Laboratories, Inc. + * + * This code is derived from software contributed to Berkeley by + * the Systems Programming Group of the University of Utah Computer + * Science Department. + * + * 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. + * + * @(#)ipc.h 8.3 (Berkeley) 1/21/94 + */ + +/* + * SVID compatible ipc.h file + */ +#ifndef _SYS_IPC_H_ +#define _SYS_IPC_H_ + +typedef long key_t; /* XXX should be in types.h */ + +struct ipc_perm { + ushort cuid; /* creator user id */ + ushort cgid; /* creator group id */ + ushort uid; /* user id */ + ushort gid; /* group id */ + ushort mode; /* r/w permission */ + ushort seq; /* sequence # (to generate unique msg/sem/shm id) */ + key_t key; /* user specified msg/sem/shm key */ +}; + +/* common mode bits */ +#define IPC_R 00400 /* read permission */ +#define IPC_W 00200 /* write/alter permission */ + +/* SVID required constants (same values as system 5) */ +#define IPC_CREAT 01000 /* create entry if key does not exist */ +#define IPC_EXCL 02000 /* fail if key exists */ +#define IPC_NOWAIT 04000 /* error if request must wait */ + +#define IPC_PRIVATE (key_t)0 /* private key */ + +#define IPC_RMID 0 /* remove identifier */ +#define IPC_SET 1 /* set options */ +#define IPC_STAT 2 /* get options */ + +#endif /* !_SYS_IPC_H_ */ |