'ODTONE - Open Dot Twenty One'
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Class checksum

odtone::net::ip::checksum

Synopsis

// In header: </home/carlos/Projectos/odtone/inc/odtone/net/ip/checksum.hpp>


class checksum {
public:
  // construct/copy/destruct
  checksum();

  // public member functions
  void update(const void *, size_t);
  void update(const uint16 *, size_t);
  uint16 final() const;
  void clear();
};

Description

This class represents the checksum field in IP packets.

checksum public construct/copy/destruct

  1. checksum();

    Construct an undefined checksum, i.e., it is set to zero value.

checksum public member functions

  1. void update(const void * data, size_t len);

    Update the checksum value based on the byte buffer.

    Parameters:

    data

    Byte buffer.

    len

    Byte buffer length. 

  2. void update(const uint16 * data, size_t len);

    Update the checksum value based on the byte buffer.

    Parameters:

    data

    Byte buffer.

    len

    Byte buffer length. 

  3. uint16 final() const;

    Get the value of the checksum.

    Returns:

    The value of the checksum. 

  4. void clear();

    Clear the value of the checksum.

Copyright © 2009-2013 Universidade Aveiro
Copyright © 2009-2013 Instituto de Telecomunicações - Pólo Aveiro

This software is distributed under a license. The full license agreement can be found in the LICENSE in this distribution. This software may not be copied, modified, sold or distributed other than expressed in the named license agreement. This software is distributed without any warranty.

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