/** * \addtogroup rime * @{ *//** * \defgroup rimemh Best-effort multihop forwarding * @{ * * The mh module implements a multihop forwarding mechanism. Routes * must have already been setup with the route_add() function. Setting * up routes is done with another Rime module such as the \ref * routediscovery "route-discovery module". * * \section channels Channels * * The mh module uses 1 channel. * *//* * 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. * * $Id: mh.h,v 1.2 2007/03/31 18:31:28 adamdunkels Exp $ *//** * \file *         Multihop forwarding header file * \author *         Adam Dunkels <adam@sics.se> */#ifndef __MH_H__#define __MH_H__#include "net/rime/abc.h"#include "net/rime/rimeaddr.h"struct mh_conn;struct mh_callbacks {  void (* recv)(struct mh_conn *ptr, rimeaddr_t *sender);  int (* forwarding)(struct mh_conn *ptr);};struct mh_conn {  struct uc_conn c;  const struct mh_callbacks *cb;};void mh_open(struct mh_conn *c, u16_t channel,	     const struct mh_callbacks *u);void mh_close(struct mh_conn *c);int mh_send(struct mh_conn *c, rimeaddr_t *to);#endif /* __MH_H__ *//** @} *//** @} */