private void AssociationReleaseReceived(byte [] pdu)
{
Dump("<< A-RELEASE-RQ ...", pdu);
//#if DEBUG
// if (number != 0) Console.WriteLine("association {0,4} closed", number);
//#endif
AssociationReleasePdu release = new AssociationReleasePdu(ProtocolDataUnit.Type.A_RELEASE_RP);
State = State.Closed;
Send("A-RELEASE-RP", release);
}
/// <summary>
/// Closes the Association.
/// </summary>
/// <returns>True if we get a response, False otherwise.</returns>
public bool Close()
{
bool result = true;
if (!disposed)
{
try
{
if (IsOpen())
{
AssociationReleasePdu release = new AssociationReleasePdu(ProtocolDataUnit.Type.A_RELEASE_RQ);
MemoryStream memory = new MemoryStream();
release.Write(memory);
Dump(">> " + "A-RELEASE-RQ", memory.ToArray());
NetworkStream output = new NetworkStream(socket, FileAccess.Write, false);
State = State.Closing;
output.Write(memory.ToArray(), 0, (int)memory.Length);
// get response
if (!completeEvent.WaitOne(timeout, false))
{
result = false;
}
}
// close socket
if (socket.Connected)
{
socket.Close();
if (!threadEvent.WaitOne(timeout, false))
{
Logging.Log("Background thread did not complete.");
}
}
}
catch (Exception e)
{
State = State.Closed;
Logging.Log(e.Message);
result = false;
}
}
State = State.Closed;
return(result);
}
private void OnClosing(byte[] pdu)
{
// parse response
MemoryStream memory = new MemoryStream(pdu, 0, pdu.Length);
AssociationReleasePdu response = new AssociationReleasePdu();
response.Read(memory);
switch ((ProtocolDataUnit.Type)response.PduType)
{
case ProtocolDataUnit.Type.A_RELEASE_RP:
State = State.Closed;
Dump("<< A-RELEASE-RP", pdu);
break;
default:
State = State.Closed;
Dump(String.Format("<< UNEXPECTED PDU(0x{0:x4})", (byte)response.PduType), pdu);
break;
}
completeEvent.Set();
}
