140 lines
4.6 KiB
C
140 lines
4.6 KiB
C
/**
|
|
* \addtogroup rime
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* \defgroup rimemesh Mesh routing
|
|
* @{
|
|
*
|
|
* The mesh module sends packets using multi-hop routing to a specified
|
|
* receiver somewhere in the network.
|
|
*
|
|
*
|
|
* \section channels Channels
|
|
*
|
|
* The mesh module uses 3 channel; one for the multi-hop forwarding
|
|
* (\ref rimemh "mh") and two for the route disovery (\ref
|
|
* routediscovery "route-discovery").
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 2007, 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: mesh.h,v 1.8 2007/03/31 18:31:27 adamdunkels Exp $
|
|
*/
|
|
|
|
/**
|
|
* \file
|
|
* Header file for the Rime mesh routing protocol
|
|
* \author
|
|
* Adam Dunkels <adam@sics.se>
|
|
*/
|
|
|
|
#ifndef __MESH_H__
|
|
#define __MESH_H__
|
|
|
|
#include "net/rime.h"
|
|
#include "net/rime/mh.h"
|
|
#include "net/rime/route-discovery.h"
|
|
|
|
struct mesh_conn;
|
|
|
|
/**
|
|
* \brief Mesh callbacks
|
|
*/
|
|
struct mesh_callbacks {
|
|
/** Called when a packet is received. */
|
|
void (* recv)(struct mesh_conn *c, rimeaddr_t *from);
|
|
/** Called when a packet, sent with mesh_send(), is actually transmitted. */
|
|
void (* sent)(struct mesh_conn *c);
|
|
/** Called when a packet, sent with mesh_send(), times out and is dropped. */
|
|
void (* timedout)(struct mesh_conn *c);
|
|
};
|
|
|
|
struct mesh_conn {
|
|
struct mh_conn mh;
|
|
struct route_discovery_conn route_discovery_conn;
|
|
struct queuebuf *queued_data;
|
|
rimeaddr_t queued_data_dest;
|
|
const struct mesh_callbacks *cb;
|
|
};
|
|
|
|
/**
|
|
* \brief Open a mesh connection
|
|
* \param c A pointer to a struct mesh_conn
|
|
* \param channels The channels on which the connection will operate; mesh uses 3 channels
|
|
* \param callbacks Pointer to callback structure
|
|
*
|
|
* This function sets up a mesh connection on the
|
|
* specified channel. The caller must have allocated the
|
|
* memory for the struct mesh_conn, usually by declaring it
|
|
* as a static variable.
|
|
*
|
|
* The struct mesh_callbacks pointer must point to a structure
|
|
* containing function pointers to functions that will be called
|
|
* when a packet arrives on the channel.
|
|
*
|
|
*/
|
|
void mesh_open(struct mesh_conn *c, u16_t channels,
|
|
const struct mesh_callbacks *callbacks);
|
|
|
|
/**
|
|
* \brief Close an mesh connection
|
|
* \param c A pointer to a struct mesh_conn
|
|
*
|
|
* This function closes an mesh connection that has
|
|
* previously been opened with mesh_open().
|
|
*
|
|
* This function typically is called as an exit handler.
|
|
*
|
|
*/
|
|
void mesh_close(struct mesh_conn *c);
|
|
|
|
/**
|
|
* \brief Send a mesh packet
|
|
* \param c The mesh connection on which the packet should be sent
|
|
* \param dest The address of the final destination of the packet
|
|
* \retval Non-zero if the packet could be queued for sending, zero otherwise
|
|
*
|
|
* This function sends a mesh packet. The packet must be
|
|
* present in the rimebuf before this function is called.
|
|
*
|
|
* The parameter c must point to an abc connection that
|
|
* must have previously been set up with mesh_open().
|
|
*
|
|
*/
|
|
int mesh_send(struct mesh_conn *c, rimeaddr_t *dest);
|
|
|
|
#endif /* __MESH_H__ */
|
|
/** @} */
|
|
/** @} */
|