/// <summary>
/// true iff the GroupAddress, IsSuppressRouterSideProcessing, QueryRobustnessVariable and SourceAddresses fields are equal
/// and the QueryInterval is similar.
/// </summary>
private bool EqualFields(IgmpQueryVersion3Layer other)
{
return(other != null &&
GroupAddress == other.GroupAddress &&
IsSuppressRouterSideProcessing == other.IsSuppressRouterSideProcessing &&
QueryRobustnessVariable == other.QueryRobustnessVariable &&
QueryInterval.Divide(2) <= other.QueryInterval && QueryInterval.Multiply(2) >= other.QueryInterval &&
SourceAddresses.SequenceEqual(other.SourceAddresses));
}
/// <summary>
/// Two records are equal if the record type, multicast address, source addresses and auxiliary data are equal.
/// </summary>
public bool Equals(IgmpGroupRecord other)
{
if (other == null)
{
return(false);
}
return(RecordType == other.RecordType &&
MulticastAddress == other.MulticastAddress &&
SourceAddresses.SequenceEqual(other.SourceAddresses) &&
AuxiliaryData.Equals(other.AuxiliaryData));
}
/// <summary>
/// The hash code of a record is the xor of the hash code of the record type, multicast address, source addresses and auxiliary data.
/// </summary>
public override int GetHashCode()
{
return(Sequence.GetHashCode(RecordType, MulticastAddress) ^ SourceAddresses.SequenceGetHashCode() ^ AuxiliaryData.BytesSequenceGetHashCode());
}
/// <summary>
/// A string containing the record type, multicast address, source addresses and the number of bytes in teh auxiliary data.
/// </summary>
public override string ToString()
{
return(RecordType + " " + MulticastAddress + " " + SourceAddresses.SequenceToString(", ", "[", "]") + " Aux=" + AuxiliaryData.Length);
}
/// <summary>
/// Xor of the combination of the IsSuppressRouterSideProcessing and QueryRobustnessVariable fields with
/// the hash codes of the layer length, datalink, message type, query version, group address and all the source addresses.
/// </summary>
public override int GetHashCode()
{
return(base.GetHashCode() ^
Sequence.GetHashCode(GroupAddress, BitSequence.Merge(IsSuppressRouterSideProcessing.ToByte(), QueryRobustnessVariable)) ^
SourceAddresses.SequenceGetHashCode());
}