90 lines
3 KiB
C
90 lines
3 KiB
C
/**
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* \addtogroup rime
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* @{
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*/
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/**
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* \defgroup rimeuc Single-hop unicast
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* @{
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*
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* The unicast module sends a packet to an identified single-hop
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* neighbor. The unicast primitive uses the broadcast primitive and
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* adds the single-hop receiver address attribute to the outgoing
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* packets. For incoming packets, the unicast module inspects the
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* single-hop receiver address attribute and discards the packet if
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* the address does not match the address of the node.
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*
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* \section channels Channels
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*
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* The unicast module uses 1 channel.
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*
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*/
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/*
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* Copyright (c) 2006, Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*
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* $Id: unicast.h,v 1.4 2009/03/12 21:58:21 adamdunkels Exp $
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*/
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/**
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* \file
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* Header file for Rime's single-hop unicast
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* \author
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* Adam Dunkels <adam@sics.se>
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*/
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#ifndef __UNICAST_H__
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#define __UNICAST_H__
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#include "net/rime/broadcast.h"
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struct unicast_conn;
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#define UNICAST_ATTRIBUTES { PACKETBUF_ADDR_RECEIVER, PACKETBUF_ADDRSIZE }, \
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BROADCAST_ATTRIBUTES
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struct unicast_callbacks {
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void (* recv)(struct unicast_conn *c, rimeaddr_t *from);
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};
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struct unicast_conn {
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struct broadcast_conn c;
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const struct unicast_callbacks *u;
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};
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void unicast_open(struct unicast_conn *c, uint16_t channel,
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const struct unicast_callbacks *u);
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void unicast_close(struct unicast_conn *c);
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int unicast_send(struct unicast_conn *c, const rimeaddr_t *receiver);
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#endif /* __UNICAST_H__ */
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/** @} */
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/** @} */
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