mirror of
https://sourceware.org/git/glibc.git
synced 2025-01-08 02:10:18 +00:00
62 lines
2.0 KiB
C
62 lines
2.0 KiB
C
|
/* 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_MSG_H
|
||
|
|
#define _SYS_MSG_H
|
||
|
|
|
||
|
|
#include <features.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
|
||
|
|
/* Get common definition of System V style IPC. */
|
||
|
|
#include <sys/ipc.h>
|
||
|
|
|
||
|
|
/* Get system dependent definition of `struct msqid_ds' and more. */
|
||
|
|
#include <sys/msq_buf.h>
|
||
|
|
|
||
|
|
__BEGIN_DECLS
|
||
|
|
|
||
|
|
/* The following System V style IPC functions implement a message queue
|
||
|
|
system. The definition is found in XPG2. */
|
||
|
|
|
||
|
|
/* Template for struct to be used as argument for `msgsnd' and `msgrcv'. */
|
||
|
|
struct msgbuf
|
||
|
|
{
|
||
|
|
long mtype; /* type of received/sent message */
|
||
|
|
char mtext[1]; /* text of the message */
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
/* Message queue control operation. */
|
||
|
|
extern int msgctl __P ((int __msqid, int __cmd, struct msqid_ds *__buf));
|
||
|
|
|
||
|
|
/* Get messages queue. */
|
||
|
|
extern int msgget __P ((key_t __key, int __msgflg));
|
||
|
|
|
||
|
|
/* Receive message from message queue. */
|
||
|
|
extern int msgrcv __P ((int __msqid, void *__msgp, size_t __msgsz,
|
||
|
|
long __msgtyp, int __msgflg));
|
||
|
|
|
||
|
|
/* Send message to message queue. */
|
||
|
|
extern int msgsnd __P ((int __msqid, void *__msgp, size_t __msgsz,
|
||
|
|
int __msgflg));
|
||
|
|
|
||
|
|
__END_DECLS
|
||
|
|
|
||
|
|
#endif /* sys/msg.h */
|