flood.h

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//  This file is part of MANTIS OS, Operating System
//  See http://mantis.cs.colorado.edu/
//
//  Copyright (C) 2003,2004,2005 University of Colorado, Boulder
//
//  This program is free software; you can redistribute it and/or
//  modify it under the terms of the mos license (see file LICENSE)

/**************************************************************************/
/* File:       flood.h                                                    */
/* Author:     Jeff Rose   :  [e-mail]                         */
/*   Date: 04/15/04                                                       */
/*                                                                        */
/* Broadcast flooding implemented for the mos net layer.                  */
/**************************************************************************/

/** @file flood.h
 * @brief A broadcast flooding implementation for the mos net layer.
 * @author Jeff Rose
 * @date 04/15/2004
 */

#ifndef _FLOOD_H_
#define _FLOOD_H_

#include "mos.h"

#include "net.h"
#include "com.h"
#include "printf.h"
#include <stdarg.h>

#define FLOOD_PROTO_ID 1

typedef struct flood_pkt_t
{
   uint16_t src;
   uint16_t dest;
   uint8_t seq_num;
} flood_pkt;

/** @brief Setup the flooding protocol and register with the net layer. */
void flood_init();

/** @brief Send a packet using the flooding protocol. 
 * @param pkt Packet to send
 * @param args Arguements
*/
int8_t flood_send(comBuf * pkt, va_list args);

/** @brief Receive a packet that came using the flooding protocol. 
 *
 * NOTE: Must subtract the sizeof route header from pkt->size so
 *       the net layer can determine whether any more data is available.
 * @param pkt Packet received
 * @param footer Location
 * @return FALSE if failure, else return TRUE
 */
boolean flood_recv(comBuf *pkt, uint8_t **footer, uint8_t port);

/* Set some protocol specific parameters. */
/** @brief Set some protocol specific parameters. 
 * @param request IO request
 * @param args Arguements
 */
int8_t flood_ioctl(uint8_t request, va_list args);

#endif