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5107cf1d | 1 | /* Copyright (C) 1995, 1997 Free Software Foundation, Inc. |
8a4b65b4 | 2 | This file is part of the GNU C Library. |
d2f5be2a | 3 | |
8a4b65b4 UD |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Library General Public License as | |
6 | published by the Free Software Foundation; either version 2 of the | |
7 | 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 | |
12 | Library General Public License for more details. | |
d2f5be2a | 13 | |
8a4b65b4 UD |
14 | You should have received a copy of the GNU Library General Public |
15 | License along with the GNU C Library; see the file COPYING.LIB. If not, | |
16 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
17 | Boston, MA 02111-1307, USA. */ | |
d2f5be2a | 18 | |
5107cf1d UD |
19 | #ifndef _SYS_MSG_H |
20 | #error "Never use <bits/msq.h> directly; include <sys/msg.h> instead." | |
21 | #endif | |
d2f5be2a | 22 | |
d2f5be2a UD |
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 */ | |
d2f5be2a | 27 | |
d2f5be2a UD |
28 | |
29 | /* Structure of record for one message inside the kernel. | |
30 | The type `struct __msg' is opaque. */ | |
31 | struct msqid_ds | |
32 | { | |
33 | struct ipc_perm msg_perm; /* structure describing operation permission */ | |
d2f5be2a UD |
34 | __time_t msg_stime; /* time of last msgsnd command */ |
35 | __time_t msg_rtime; /* time of last msgrcv command */ | |
36 | __time_t msg_ctime; /* time of last change */ | |
d2f5be2a UD |
37 | unsigned short int msg_qnum; /* number of messages currently on queue */ |
38 | unsigned short int msg_qbytes;/* max number of bytes allowed on queue */ | |
5107cf1d UD |
39 | __pid_t msg_lspid; /* pid of last msgsnd() */ |
40 | __pid_t msg_lrpid; /* pid of last msgrcv() */ | |
d2f5be2a | 41 | }; |