radioreceive.nc

来自「tinyos-2.x.rar」· NC 代码 · 共 44 行

/*
 * Copyright (c) 2007, Vanderbilt University
 * All rights reserved.
 *
 * Permission to use, copy, modify, and distribute this software and its
 * documentation for any purpose, without fee, and without written agreement is
 * hereby granted, provided that the above copyright notice, the following
 * two paragraphs and the author appear in all copies of this software.
 * 
 * IN NO EVENT SHALL THE VANDERBILT UNIVERSITY BE LIABLE TO ANY PARTY FOR
 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
 * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE VANDERBILT
 * UNIVERSITY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * 
 * THE VANDERBILT UNIVERSITY SPECIFICALLY DISCLAIMS ANY WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
 * ON AN "AS IS" BASIS, AND THE VANDERBILT UNIVERSITY HAS NO OBLIGATION TO
 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
 *
 * Author: Miklos Maroti
 */

#include <Tasklet.h>

interface RadioReceive
{
	/**
	 * This event is fired when the header is received/downloaded and the 
	 * higher layers are consulted whether it needs to be downloaded and 
	 * further processed. Return FALSE if the message should be discarded.
	 * In particular, the message buffer layer returns FALSE if there is
	 * no space for a new message, so this message will not get acknowledged.
	 */
	tasklet_async event bool header(message_t* msg);

	/**
	 * Signals the reception of a message, but only for those messages for
	 * which SUCCESS was returned in the header event. The usual owner rules 
	 * apply to the message pointers.
	 */
	tasklet_async event message_t* receive(message_t* msg);
}