mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-24 22:10:13 +00:00
688903eb3e
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
83 lines
2.3 KiB
C
83 lines
2.3 KiB
C
/* Copyright (C) 1995-2018 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 Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef _SYS_MSG_H
|
|
#define _SYS_MSG_H
|
|
|
|
#include <features.h>
|
|
|
|
#define __need_size_t
|
|
#include <stddef.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. */
|
|
#include <bits/types/time_t.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
|
|
{
|
|
__syscall_slong_t 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) __THROW;
|
|
|
|
/* Get messages queue. */
|
|
extern int msgget (key_t __key, int __msgflg) __THROW;
|
|
|
|
/* Receive message from message queue.
|
|
|
|
This function is a cancellation point and therefore not marked with
|
|
__THROW. */
|
|
extern ssize_t msgrcv (int __msqid, void *__msgp, size_t __msgsz,
|
|
long int __msgtyp, int __msgflg);
|
|
|
|
/* Send message to message queue.
|
|
|
|
This function is a cancellation point and therefore not marked with
|
|
__THROW. */
|
|
extern int msgsnd (int __msqid, const void *__msgp, size_t __msgsz,
|
|
int __msgflg);
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* sys/msg.h */
|