1: /* Copyright (C) 1995, 1997, 2000 Free Software Foundation, Inc.
    2:    This file is part of the GNU C Library.
    3: 
    4:    The GNU C Library is free software; you can redistribute it and/or
    5:    modify it under the terms of the GNU Lesser General Public
    6:    License as published by the Free Software Foundation; either
    7:    version 2.1 of the License, or (at your option) any later version.
    8: 
    9:    The GNU C Library is distributed in the hope that it will be useful,
   10:    but WITHOUT ANY WARRANTY; without even the implied warranty of
   11:    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   12:    Lesser General Public License for more details.
   13: 
   14:    You should have received a copy of the GNU Lesser General Public
   15:    License along with the GNU C Library; if not, write to the Free
   16:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   17:    02111-1307 USA.  */
   18: 
   19: #ifndef _SYS_MSG_H
   20: #error "Never use <bits/msq.h> directly; include <sys/msg.h> instead."
   21: #endif
   22: 
   23: #include <bits/types.h>
   24: 
   25: /* Define options for message queue functions.  */
   26: #define MSG_NOERROR     010000      /* no error if message is too big */
   27: 
   28: /* Types used in the structure definition.  */
   29: typedef unsigned short int msgqnum_t;
   30: typedef unsigned short int msglen_t;
   31: 
   32: 
   33: /* Structure of record for one message inside the kernel.
   34:    The type `struct __msg' is opaque.  */
   35: struct msqid_ds
   36: {
   37:   struct ipc_perm msg_perm;     /* structure describing operation permission */
   38:   __time_t msg_stime;           /* time of last msgsnd command */
   39:   __time_t msg_rtime;           /* time of last msgrcv command */
   40:   __time_t msg_ctime;           /* time of last change */
   41:   msgqnum_t msg_qnum;           /* number of messages currently on queue */
   42:   msglen_t msg_qbytes;          /* max number of bytes allowed on queue */
   43:   __pid_t msg_lspid;            /* pid of last msgsnd() */
   44:   __pid_t msg_lrpid;            /* pid of last msgrcv() */
   45: };