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git.ipfire.org Git - thirdparty/glibc.git/blob - sysdeps/unix/sysv/linux/generic/bits/msq.h
1 /* Copyright (C) 2011-2014 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
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.
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.
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/>. */
20 # error "Never use <bits/msq.h> directly; include <sys/msg.h> instead."
23 #include <bits/types.h>
24 #include <bits/wordsize.h>
26 /* Define options for message queue functions. */
27 #define MSG_NOERROR 010000 /* no error if message is too big */
29 # define MSG_EXCEPT 020000 /* recv any msg except of specified type */
30 # define MSG_COPY 040000 /* copy (not remove) all queue messages */
33 /* Types used in the structure definition. */
34 typedef unsigned long int msgqnum_t
;
35 typedef unsigned long int msglen_t
;
37 /* Structure of record for one message inside the kernel.
38 The type `struct msg' is opaque. */
41 struct ipc_perm msg_perm
; /* structure describing operation permission */
42 __time_t msg_stime
; /* time of last msgsnd command */
44 unsigned long int __glibc_reserved1
;
46 __time_t msg_rtime
; /* time of last msgrcv command */
48 unsigned long int __glibc_reserved2
;
50 __time_t msg_ctime
; /* time of last change */
52 unsigned long int __glibc_reserved3
;
54 unsigned long int __msg_cbytes
; /* current number of bytes on queue */
55 msgqnum_t msg_qnum
; /* number of messages currently on queue */
56 msglen_t msg_qbytes
; /* max number of bytes allowed on queue */
57 __pid_t msg_lspid
; /* pid of last msgsnd() */
58 __pid_t msg_lrpid
; /* pid of last msgrcv() */
59 unsigned long int __glibc_reserved4
;
60 unsigned long int __glibc_reserved5
;
65 # define msg_cbytes __msg_cbytes
67 /* ipcs ctl commands */
71 /* buffer for msgctl calls IPC_INFO, MSG_INFO */
81 unsigned short int msgseg
;
84 #endif /* __USE_MISC */