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04277e02 | 1 | /* Copyright (C) 1995-2019 Free Software Foundation, Inc. |
8a4b65b4 | 2 | This file is part of the GNU C Library. |
d2f5be2a | 3 | |
8a4b65b4 | 4 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
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. | |
d2f5be2a | 8 | |
8a4b65b4 UD |
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 | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
d2f5be2a | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 15 | License along with the GNU C Library; if not, see |
5a82c748 | 16 | <https://www.gnu.org/licenses/>. */ |
d2f5be2a | 17 | |
5107cf1d UD |
18 | #ifndef _SYS_MSG_H |
19 | #error "Never use <bits/msq.h> directly; include <sys/msg.h> instead." | |
20 | #endif | |
d2f5be2a | 21 | |
bba09d23 | 22 | #include <bits/types.h> |
d2f5be2a UD |
23 | |
24 | /* Define options for message queue functions. */ | |
25 | #define MSG_NOERROR 010000 /* no error if message is too big */ | |
d2f5be2a | 26 | |
bba09d23 UD |
27 | /* Types used in the structure definition. */ |
28 | typedef unsigned short int msgqnum_t; | |
29 | typedef unsigned short int msglen_t; | |
30 | ||
d2f5be2a UD |
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 */ | |
d2f5be2a UD |
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 */ | |
bba09d23 UD |
40 | msgqnum_t msg_qnum; /* number of messages currently on queue */ |
41 | msglen_t msg_qbytes; /* max number of bytes allowed on queue */ | |
5107cf1d UD |
42 | __pid_t msg_lspid; /* pid of last msgsnd() */ |
43 | __pid_t msg_lrpid; /* pid of last msgrcv() */ | |
d2f5be2a | 44 | }; |