ports/sysdeps/unix/sysv/linux/ia64/bits/msq.h

   1 /* Copyright (C) 2000-2014 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3         Contribute by David Mosberger-Tang <davidm@hpl.hp.com>
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _SYS_MSG_H
  20 #error "Never use <bits/msq.h> directly; include <sys/msg.h> instead."
  21 #endif
  22
  23 #include <sys/types.h>
  24
  25 /* Define options for message queue functions.  */
  26 #define MSG_NOERROR     010000  /* no error if message is too big */
  27 #ifdef __USE_GNU
  28 # define MSG_EXCEPT     020000  /* recv any msg except of specified type */
  29 # define MSG_COPY       040000  /* copy (not remove) all queue messages */
  30 #endif
  31
  32 /* Structure of record for one message inside the kernel.
  33    The type `struct __msg' is opaque.  */
  34 struct msqid_ds
  35 {
  36   struct ipc_perm msg_perm;     /* structure describing operation permission */
  37   __time_t msg_stime;           /* time of last msgsnd command */
  38   __time_t msg_rtime;           /* time of last msgrcv command */
  39   __time_t msg_ctime;           /* time of last change */
  40   unsigned long int __msg_cbytes;       /* current number of bytes on queue */
  41   unsigned long int msg_qnum;   /* number of messages currently on queue */
  42   unsigned long int 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   unsigned long int __glibc_reserved1;
  46   unsigned long int __glibc_reserved2;
  47 };
  48
  49 #ifdef __USE_MISC
  50
  51 # define msg_cbytes     __msg_cbytes
  52
  53 /* ipcs ctl commands */
  54 # define MSG_STAT 11
  55 # define MSG_INFO 12
  56
  57 /* buffer for msgctl calls IPC_INFO, MSG_INFO */
  58 struct msginfo
  59   {
  60     int msgpool;
  61     int msgmap;
  62     int msgmax;
  63     int msgmnb;
  64     int msgmni;
  65     int msgssz;
  66     int msgtql;
  67     unsigned short int msgseg;
  68   };
  69
  70 #endif /* __USE_MISC */