/* Copyright (C) 1995, 1997, 2000 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #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() */ };