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75 lines
2.5 KiB
C
75 lines
2.5 KiB
C
/*
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* Copyright (c) 2015, Stefan Lankes, RWTH Aachen University
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* All rights reserved.
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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 are met:
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* * 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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* * 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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* * 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
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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 <stdlib.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef __KERNEL__
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typedef long key_t;
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#endif
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#define IPC_PRIVATE ((key_t) 0)
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/* Obsolete, used only for backwards compatibility and libc5 compiles */
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struct ipc_perm
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{
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key_t key;
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#if 0
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__kernel_uid_t uid;
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__kernel_gid_t gid;
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__kernel_uid_t cuid;
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__kernel_gid_t cgid;
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__kernel_mode_t mode;
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unsigned short seq;
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#endif
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};
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/* resource get request flags */
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#define IPC_CREAT 00001000 /* create if key is nonexistent */
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#define IPC_EXCL 00002000 /* fail if key exists */
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#define IPC_NOWAIT 00004000 /* return error on wait */
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/*
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* Control commands used with semctl, msgctl and shmctl
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* see also specific commands in shm.h
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*/
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#define IPC_RMID 0 /* remove resource */
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#define IPC_SET 1 /* set ipc_perm options */
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#define IPC_STAT 2 /* get ipc_perm options */
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#define IPC_INFO 3 /* see ipcs */
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#ifdef __cplusplus
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}
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#endif
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#endif
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