| /* Copyright (C) 1995-2018 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef _SYS_MSG_H |
| #error "Never use <bits/msq.h> directly; include <sys/msg.h> instead." |
| #endif |
| |
| #include <bits/types.h> |
| |
| /* Define options for message queue functions. */ |
| #define MSG_NOERROR 010000 /* no error if message is too big */ |
| |
| /* Types used in the structure definition. */ |
| typedef unsigned short int msgqnum_t; |
| typedef unsigned short int msglen_t; |
| |
| |
| /* Structure of record for one message inside the kernel. |
| The type `struct __msg' is opaque. */ |
| struct msqid_ds |
| { |
| struct ipc_perm msg_perm; /* structure describing operation permission */ |
| __time_t msg_stime; /* time of last msgsnd command */ |
| __time_t msg_rtime; /* time of last msgrcv command */ |
| __time_t msg_ctime; /* time of last change */ |
| msgqnum_t msg_qnum; /* number of messages currently on queue */ |
| msglen_t msg_qbytes; /* max number of bytes allowed on queue */ |
| __pid_t msg_lspid; /* pid of last msgsnd() */ |
| __pid_t msg_lrpid; /* pid of last msgrcv() */ |
| }; |
