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41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
50 lines
1.9 KiB
C
50 lines
1.9 KiB
C
/* Copyright (C) 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _SYS_SHM_H
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# error "Never include <bits/shm.h> directly; use <sys/shm.h> instead."
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#endif
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#include <bits/types.h>
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/* Flags for `shmat'. */
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#define SHM_RDONLY 010000 /* attach read-only else read-write */
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#define SHM_RND 020000 /* round attach address to SHMLBA */
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#define SHM_REMAP 040000 /* take-over region on attach */
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/* Commands for `shmctl'. */
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#define SHM_LOCK 11 /* lock segment (root only) */
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#define SHM_UNLOCK 12 /* unlock segment (root only) */
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/* Type to count number of attaches. */
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typedef unsigned short int shmatt_t;
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/* Data structure describing a set of semaphores. */
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struct shmid_ds
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{
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struct ipc_perm shm_perm; /* operation permission struct */
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int shm_segsz; /* size of segment in bytes */
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__time_t shm_atime; /* time of last shmat() */
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__time_t shm_dtime; /* time of last shmdt() */
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__time_t shm_ctime; /* time of last change by shmctl() */
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__pid_t shm_cpid; /* pid of creator */
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__pid_t shm_lpid; /* pid of last shmop */
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shmatt_t shm_nattch; /* number of current attaches */
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};
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