/*
 * 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: rimebuf.h,v 1.1 2007/02/28 16:38:52 adamdunkels Exp $
 */

/**
 * \file
 *         A brief description of what this file is.
 * \author
 *         Adam Dunkels <adam@sics.se>
 */

#ifndef __NETBUF_H__
#define __NETBUF_H__

#include "contiki-net.h"

#define NETBUF_SIZE 128
#define NETBUF_HDR_SIZE 16

void *rimebuf_dataptr(void);
void *rimebuf_hdrptr(void);

u8_t rimebuf_hdrlen(void);

u16_t rimebuf_len(void);
void rimebuf_set_len(u16_t len);

void rimebuf_reference(void *ptr, u16_t len);
int rimebuf_is_reference(void);
void *rimebuf_reference_ptr(void);

int rimebuf_copyfrom(u8_t *from, u16_t len);

int rimebuf_copyto(u8_t *to);
int rimebuf_copyto_hdr(u8_t *to);



int rimebuf_hdrextend(int size);
int rimebuf_hdrreduce(int size);

void rimebuf_clear(void);


#endif /* __NETBUF_H__ */