nes-proj/core/net/rime/unicast.h

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