/// <summary>
/// Default constructor.
/// </summary>
public Dns_Client()
{
m_pTransactions = new Dictionary<int,DNS_ClientTransaction>();
m_pIPv4Socket = new Socket(AddressFamily.InterNetwork,SocketType.Dgram,ProtocolType.Udp);
m_pIPv4Socket.Bind(new IPEndPoint(IPAddress.Any,0));
if(Socket.OSSupportsIPv6){
m_pIPv6Socket = new Socket(AddressFamily.InterNetworkV6,SocketType.Dgram,ProtocolType.Udp);
m_pIPv6Socket.Bind(new IPEndPoint(IPAddress.IPv6Any,0));
}
m_pReceivers = new List<UDP_DataReceiver>();
m_pRandom = new Random();
m_pCache = new DNS_ClientCache();
// Create UDP data receivers.
for(int i=0;i<5;i++){
UDP_DataReceiver ipv4Receiver = new UDP_DataReceiver(m_pIPv4Socket);
ipv4Receiver.PacketReceived += delegate(object s1,UDP_e_PacketReceived e1){
ProcessUdpPacket(e1);
};
m_pReceivers.Add(ipv4Receiver);
ipv4Receiver.Start();
if(m_pIPv6Socket != null){
UDP_DataReceiver ipv6Receiver = new UDP_DataReceiver(m_pIPv6Socket);
ipv6Receiver.PacketReceived += delegate(object s1,UDP_e_PacketReceived e1){
ProcessUdpPacket(e1);
};
m_pReceivers.Add(ipv6Receiver);
ipv6Receiver.Start();
}
}
}
/// <summary>
/// Cleans up any resources being used.
/// </summary>
public void Dispose()
{
if(m_IsDisposed){
return;
}
m_IsDisposed = true;
if(m_pReceivers != null){
foreach(UDP_DataReceiver receiver in m_pReceivers){
receiver.Dispose();
}
m_pReceivers = null;
}
m_pIPv4Socket.Close();
m_pIPv4Socket = null;
if(m_pIPv6Socket != null){
m_pIPv6Socket.Close();
m_pIPv6Socket = null;
}
m_pTransactions = null;
m_pRandom = null;
m_pCache.Dispose();
m_pCache = null;
}