text: /* Copyright (C) 2011 Free Software Foundation, Inc.
     This file is part of the GNU C Library.
     Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
  
     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, 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."
  #endif
  
  #include <bits/types.h>
  #include <bits/wordsize.h>
  
  /* Define options for message queue functions.  */
  #define MSG_NOERROR	010000	/* no error if message is too big */
  #ifdef __USE_GNU
  # define MSG_EXCEPT	020000	/* recv any msg except of specified type */
  #endif
  
  /* Types used in the structure definition.  */
  typedef unsigned long int msgqnum_t;
  typedef unsigned long 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 */
  #if __WORDSIZE == 32
    unsigned long int __unused1;
  #endif
    __time_t msg_rtime;		/* time of last msgrcv command */
  #if __WORDSIZE == 32
    unsigned long int __unused2;
  #endif
    __time_t msg_ctime;		/* time of last change */
  #if __WORDSIZE == 32
    unsigned long int __unused3;
  #endif
    unsigned long int __msg_cbytes; /* current number of bytes on queue */
    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() */
    unsigned long int __unused4;
    unsigned long int __unused5;
  };
  
  #ifdef __USE_MISC
  
  # define msg_cbytes	__msg_cbytes
  
  /* ipcs ctl commands */
  # define MSG_STAT 11
  # define MSG_INFO 12
  
  /* buffer for msgctl calls IPC_INFO, MSG_INFO */
  struct msginfo
    {
      int msgpool;
      int msgmap;
      int msgmax;
      int msgmnb;
      int msgmni;
      int msgssz;
      int msgtql;
      unsigned short int msgseg;
    };
  
  #endif /* __USE_MISC */
  