glibc (2.38)

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       1  /* Copyright (C) 2004-2023 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, see
      16     <https://www.gnu.org/licenses/>.  */
      17  
      18  #ifndef _MQUEUE_H
      19  # error "Never use <bits/mqueue.h> directly; include <mqueue.h> instead."
      20  #endif
      21  
      22  #include <bits/types.h>
      23  
      24  typedef int mqd_t;
      25  
      26  struct mq_attr
      27  {
      28    __syscall_slong_t mq_flags;	/* Message queue flags.  */
      29    __syscall_slong_t mq_maxmsg;	/* Maximum number of messages.  */
      30    __syscall_slong_t mq_msgsize;	/* Maximum message size.  */
      31    __syscall_slong_t mq_curmsgs;	/* Number of messages currently queued.  */
      32    __syscall_slong_t __pad[4];
      33  };