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/*-
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*© Portions copyright (c) 2006 Nokia Corporation. All rights reserved.
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1990, 1993
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* The Regents of the University of California. All rights reserved.
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* (c) UNIX System Laboratories, Inc.
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* All or some portions of this file are derived from material licensed
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* to the University of California by American Telephone and Telegraph
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* Co. or Unix System Laboratories, Inc. and are reproduced herein with
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* the permission of UNIX System Laboratories, Inc.
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*
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* This code is derived from software contributed to Berkeley by
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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)ipc.h 8.4 (Berkeley) 2/19/95
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* $FreeBSD: src/sys/sys/ipc.h,v 1.25 2005/01/07 02:29:23 imp Exp $
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*/
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/*
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* SVID compatible ipc.h file
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*/
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#ifndef _SYS_IPC_H_
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#define _SYS_IPC_H_
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#ifndef _GID_T_DECLARED
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typedef __gid_t gid_t;
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#define _GID_T_DECLARED
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#endif
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#ifndef _KEY_T_DECLARED
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typedef __key_t key_t;
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#define _KEY_T_DECLARED
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#endif
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#ifndef _MODE_T_DECLARED
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typedef __mode_t mode_t;
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#define _MODE_T_DECLARED
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#endif
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#ifndef _UID_T_DECLARED
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typedef __uid_t uid_t;
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#define _UID_T_DECLARED
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#endif
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/*
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* XXX almost all members have wrong types.
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*/
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struct ipc_perm {
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unsigned short cuid; /* creator user id */
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unsigned short cgid; /* creator group id */
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unsigned short uid; /* user id */
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unsigned short gid; /* group id */
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unsigned short mode; /* r/w permission */
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unsigned short seq; /* sequence # (to generate unique ipcid) */
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key_t key; /* user specified msg/sem/shm key */
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};
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#if __BSD_VISIBLE
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/* common mode bits */
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#define IPC_R 000400 /* read permission */
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#define IPC_W 000200 /* write/alter permission */
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#define IPC_M 010000 /* permission to change control info */
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#endif
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/* SVID required constants (same values as system 5) */
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#define IPC_CREAT 001000 /* create entry if key does not exist */
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#define IPC_EXCL 002000 /* fail if key exists */
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#define IPC_NOWAIT 004000 /* error if request must wait */
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#define IPC_PRIVATE (key_t)0 /* private key */
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#define IPC_RMID 0 /* remove identifier */
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#define IPC_SET 1 /* set options */
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#define IPC_STAT 2 /* get options */
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#if __BSD_VISIBLE
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#define IPC_INFO 3 /* get info */
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#endif
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#ifdef _KERNEL
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/* Macros to convert between ipc ids and array indices or sequence ids */
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#define IPCID_TO_IX(id) ((id) & 0xffff)
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#define IPCID_TO_SEQ(id) (((id) >> 16) & 0xffff)
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#define IXSEQ_TO_IPCID(ix,perm) (((perm.seq) << 16) | (ix & 0xffff))
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struct thread;
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struct proc;
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struct vmspace;
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extern void (*shmfork_hook)(struct proc *, struct proc *);
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extern void (*shmexit_hook)(struct vmspace *);
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#else /* ! _KERNEL */
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__BEGIN_DECLS
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/*
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* Convert a pathname and project identifier to an IPC key.
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*/
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IMPORT_C key_t ftok(const char *pathname, int proj_id);
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__END_DECLS
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#endif /* _KERNEL */
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#endif /* !_SYS_IPC_H_ */
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// End of File
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