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

   1 /* Copyright (C) 1995-2024 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 _SYS_MSG_H
  19 # error "Never use <bits/msq.h> directly; include <sys/msg.h> instead."
  20 #endif
  21
  22 #include <bits/types.h>
  23
  24 /* Types used in the MSQID_DS structure definition.  */
  25 typedef __syscall_ulong_t msgqnum_t;
  26 typedef __syscall_ulong_t msglen_t;
  27
  28 #include <bits/types/struct_msqid_ds.h>
  29 #include <bits/types/struct_msqid64_ds.h>
  30
  31 /* Define options for message queue functions.  */
  32 #define MSG_NOERROR     010000  /* no error if message is too big */
  33 #ifdef __USE_GNU
  34 # define MSG_EXCEPT     020000  /* recv any msg except of specified type */
  35 # define MSG_COPY       040000  /* copy (not remove) all queue messages */
  36 #endif
  37
  38 #ifdef __USE_MISC
  39
  40 # define msg_cbytes     __msg_cbytes
  41
  42 /* ipcs ctl commands */
  43 # define MSG_STAT 11
  44 # define MSG_INFO 12
  45 # define MSG_STAT_ANY 13
  46
  47 /* buffer for msgctl calls IPC_INFO, MSG_INFO */
  48 struct msginfo
  49   {
  50     int msgpool;
  51     int msgmap;
  52     int msgmax;
  53     int msgmnb;
  54     int msgmni;
  55     int msgssz;
  56     int msgtql;
  57     unsigned short int msgseg;
  58   };
  59
  60 #endif /* __USE_MISC */