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Diffstat (limited to 'include/sys/msg.h')
| -rw-r--r-- | include/sys/msg.h | 75 | 
1 files changed, 75 insertions, 0 deletions
diff --git a/include/sys/msg.h b/include/sys/msg.h new file mode 100644 index 000000000..cba58b364 --- /dev/null +++ b/include/sys/msg.h @@ -0,0 +1,75 @@ +/* Copyright (C) 1995, 1996, 1997, 1999, 2000 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_MSG_H +#define _SYS_MSG_H + +#include <features.h> + +/* Get common definition of System V style IPC.  */ +#include <sys/ipc.h> + +/* Get system dependent definition of `struct msqid_ds' and more.  */ +#include <bits/msq.h> + +/* Define types required by the standard.  */ +#define	__need_time_t +#include <time.h> + +#ifndef __pid_t_defined +typedef __pid_t pid_t; +# define __pid_t_defined +#endif + +#ifndef __ssize_t_defined +typedef __ssize_t ssize_t; +# define __ssize_t_defined +#endif + +/* The following System V style IPC functions implement a message queue +   system.  The definition is found in XPG2.  */ + +#ifdef __USE_GNU +/* Template for struct to be used as argument for `msgsnd' and `msgrcv'.  */ +struct msgbuf +  { +    long int mtype;		/* type of received/sent message */ +    char mtext[1];		/* text of the message */ +  }; +#endif + + +__BEGIN_DECLS + +/* Message queue control operation.  */ +extern int msgctl (int __msqid, int __cmd, struct msqid_ds *__buf); + +/* Get messages queue.  */ +extern int msgget (key_t __key, int __msgflg); + +/* Receive message from message queue.  */ +extern int msgrcv (int __msqid, void *__msgp, size_t __msgsz, +		   long int __msgtyp, int __msgflg); + +/* Send message to message queue.  */ +extern int msgsnd (int __msqid, __const void *__msgp, size_t __msgsz, +		   int __msgflg); + +__END_DECLS + +#endif /* sys/msg.h */  | 
