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/* Copyright (C) 1995, 1997, 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 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
   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, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#ifndef _SYS_MSG_H
#error "Never use <bits/msq.h> directly; include <sys/msg.h> instead."

#include <bits/types.h>

/* Define options for message queue functions.  */
#define MSG_NOERROR     010000      /* no error if message is too big */

/* Types used in the structure definition.  */
typedef unsigned short int msgqnum_t;
typedef unsigned short int msglen_t;

/* Structure of record for one message inside the kernel.
   The type `struct __msg' is opaque.  */
struct msqid_ds
  struct ipc_perm msg_perm;   /* structure describing operation permission */
  __time_t msg_stime;         /* time of last msgsnd command */
  __time_t msg_rtime;         /* time of last msgrcv command */
  __time_t msg_ctime;         /* time of last change */
  msgqnum_t msg_qnum;         /* number of messages currently on queue */
  msglen_t msg_qbytes;        /* max number of bytes allowed on queue */
  __pid_t msg_lspid;          /* pid of last msgsnd() */
  __pid_t msg_lrpid;          /* pid of last msgrcv() */

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