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Diffstat (limited to 'sysvipc/sys/shm.h')
| -rw-r--r-- | sysvipc/sys/shm.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/sysvipc/sys/shm.h b/sysvipc/sys/shm.h new file mode 100644 index 0000000000..11f9e7aa07 --- /dev/null +++ b/sysvipc/sys/shm.h @@ -0,0 +1,56 @@ +/* Copyright (C) 1995 Free Software Foundation, Inc. +This file is part of the GNU C Library. +Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +#ifndef _SYS_SHM_H +#define _SYS_SHM_H + +#include <features.h> +#include <unistd.h> /* for `getpagesize' declaration */ +#include <sys/types.h> + +/* Get common definition of System V style IPC. */ +#include <sys/ipc.h> + +/* Get system dependent definition of `struct shmid_ds' and more. */ +#include <sys/shm_buf.h> + + +/* Segment low boundary address multiple. */ +#define SHMLBA getpagesize () + +__BEGIN_DECLS + +/* The following System V style IPC functions implement a shared memory + facility. The definition is found in XPG2. */ + +/* Shared memory control operation. */ +extern int shmctl __P ((int __shmid, int __cmd, struct shmid_ds *__buf)); + +/* Get shared memory segment. */ +extern int shmget __P ((key_t __key, int __size, int __shmflg)); + +/* Attach shared memory segment. */ +extern int shmat __P ((int __shmid, char *__shmaddr, int __shmflg)); + +/* Detach shared memory segment. */ +extern int shmdt __P ((char *__shmaddr)); + +__END_DECLS + +#endif /* sys/shm.h */ |