radiopacketfunctions.h

tinyos-2.x.rar

/* -*- mode:c++; indent-tabs-mode: nil -*-
 * Copyright (c) 2006, Technische Universitaet Berlin
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 *
 * - Description ---------------------------------------------------------
 * Platformindependant packet structure accessor functions
 * - Author --------------------------------------------------------------
 * @author: Philipp Huppertz ([e-mail])
 * ========================================================================
 */


#ifndef RADIO_PACKET_FUNCTIONS_H
#define RADIO_PACKET_FUNCTIONS_H

#include "message.h"

/* Packet structure accessor functions
   * note: platform-independant radiostructures are called message_radio_header_t & message_radio_footer_t */
  message_radio_header_t* getHeader(message_t* amsg) {
    return (message_radio_header_t*)(amsg->data - sizeof(message_radio_header_t));
  }

  message_radio_footer_t* getFooter(message_t* amsg) {
    return (message_radio_footer_t*)(amsg->footer);
  }

  message_radio_metadata_t* getMetadata(message_t* amsg) {
    return (message_radio_metadata_t*)((uint8_t*)amsg->footer + sizeof(message_radio_footer_t));
  }

#endif