bits/mqueue.h

   1 /* Copyright (C) 2004 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 _MQUEUE_H
  20 # error "Never use <bits/mqueue.h> directly; include <mqueue.h> instead."
  21 #endif
  22
  23 typedef int mqd_t;
  24
  25 struct mq_attr
  26 {
  27   long int mq_flags;    /* Message queue flags.  */
  28   long int mq_maxmsg;   /* Maximum number of messages.  */
  29   long int mq_msgsize;  /* Maximum message size.  */
  30   long int mq_curmsgs;  /* Number of messages currently queued.  */
  31 };