snoop.nc

传感器网络中的嵌入式操作系统源代码

// $Id: Snoop.nc,v 1.2.4.4 2003/08/26 09:08:13 cssharp Exp $

/*									tab:4
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 * Copyright (c) 2002-2003 Intel Corporation
 * All rights reserved.
 *
 * This file is distributed under the terms in the attached INTEL-LICENSE     
 * file. If you do not find these files, copies can be found by writing to
 * Intel Research Berkeley, 2150 Shattuck Avenue, Suite 1300, Berkeley, CA, 
 * 94704.  Attention:  Intel License Inquiry.
 */
/*
 * Authors:		Wei Hong
 * Date last modified:  03/03/03
 *
 */

/**
 * @author Wei Hong
 */


includes AM;
interface Snoop {
  /**
   *
   * Signals that a message that was not destined to the current node
   * has been received promiscuously.  Allows applications to perform
   * certain optimizations taking advantage of the broadcast media.
   *
   * @param msg The complete buffer received.
   *
   * @param payload The payload portion of the packet for this
   * protocol layer. If this layer has layers above it, it should signal
   * receive() with payload incremented by the size of its header. Payload
   * is a pointer into the msg structure.
   *
   * @param payloadLen The length of the payload buffer. If this layer
   * has layers above it, it should signal receive() with payloadLen
   * decreased by the size of its headers and footers.
   *
   * @param sender The address of the sender of the snooped message.
   *
   */
  event void snoop(TOS_MsgPtr msg, void* payload, uint16_t payloadLen, uint16_t sender);
}