glibc (2.38)
1 /* Copyright (C) 1995-2023 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 _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 */
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