From 91a034c61a32ebd6601fb8b894127d43b817f5fc Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Mon, 19 Mar 2001 21:51:29 +0000 Subject: Add in the sysvipc patch from Michael Shmulevich --- include/sys/sem.h | 58 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 include/sys/sem.h (limited to 'include/sys/sem.h') diff --git a/include/sys/sem.h b/include/sys/sem.h new file mode 100644 index 000000000..6ae76e234 --- /dev/null +++ b/include/sys/sem.h @@ -0,0 +1,58 @@ +/* Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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_SEM_H +#define _SYS_SEM_H 1 + +#include + +#include + +/* Get common definition of System V style IPC. */ +#include + +/* Get system dependent definition of `struct semid_ds' and more. */ +#include + +/* The following System V style IPC functions implement a semaphore + handling. The definition is found in XPG2. */ + +/* Structure used for argument to `semop' to describe operations. */ +struct sembuf +{ + short int sem_num; /* semaphore number */ + short int sem_op; /* semaphore operation */ + short int sem_flg; /* operation flag */ +}; + + +__BEGIN_DECLS + +/* Semaphore control operation. */ +extern int semctl __P ((int __semid, int __semnum, int __cmd, ...)); + +/* Get semaphore. */ +extern int semget __P ((key_t __key, int __nsems, int __semflg)); + +/* Operate on semaphore. */ +extern int semop __P ((int __semid, struct sembuf *__sops, + unsigned int __nsops)); + +__END_DECLS + +#endif /* sys/sem.h */ -- cgit v1.2.3