1a9643ea8Slogwang /*- 2*22ce4affSfengbojiang * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3*22ce4affSfengbojiang * 4a9643ea8Slogwang * Copyright (c) 2005 David Xu <[email protected]> 5a9643ea8Slogwang * All rights reserved. 6a9643ea8Slogwang * 7a9643ea8Slogwang * Redistribution and use in source and binary forms, with or without 8a9643ea8Slogwang * modification, are permitted provided that the following conditions 9a9643ea8Slogwang * are met: 10a9643ea8Slogwang * 1. Redistributions of source code must retain the above copyright 11a9643ea8Slogwang * notice, this list of conditions and the following disclaimer. 12a9643ea8Slogwang * 2. Redistributions in binary form must reproduce the above copyright 13a9643ea8Slogwang * notice, this list of conditions and the following disclaimer in the 14a9643ea8Slogwang * documentation and/or other materials provided with the distribution. 15a9643ea8Slogwang * 16a9643ea8Slogwang * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17a9643ea8Slogwang * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18a9643ea8Slogwang * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19a9643ea8Slogwang * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20a9643ea8Slogwang * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21a9643ea8Slogwang * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22a9643ea8Slogwang * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23a9643ea8Slogwang * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24a9643ea8Slogwang * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25a9643ea8Slogwang * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26a9643ea8Slogwang * SUCH DAMAGE. 27a9643ea8Slogwang * 28a9643ea8Slogwang * $FreeBSD$ 29a9643ea8Slogwang */ 30a9643ea8Slogwang 31a9643ea8Slogwang #ifndef _SYS_MQUEUE_H_ 32a9643ea8Slogwang #define _SYS_MQUEUE_H_ 33a9643ea8Slogwang 34a9643ea8Slogwang struct mq_attr { 35a9643ea8Slogwang long mq_flags; /* Message queue flags. */ 36a9643ea8Slogwang long mq_maxmsg; /* Maximum number of messages. */ 37a9643ea8Slogwang long mq_msgsize; /* Maximum message size. */ 38a9643ea8Slogwang long mq_curmsgs; /* Number of messages currently queued. */ 39a9643ea8Slogwang long __reserved[4]; /* Ignored for input, zeroed for output */ 40a9643ea8Slogwang }; 41a9643ea8Slogwang 42a9643ea8Slogwang #ifdef _KERNEL 43a9643ea8Slogwang struct thread; 44a9643ea8Slogwang struct file; 45a9643ea8Slogwang extern void (*mq_fdclose)(struct thread *td, int fd, struct file *fp); 46a9643ea8Slogwang #endif 47a9643ea8Slogwang #endif 48