public void Add(uint sequenceNumber, CommandCompletion completion)
{
lock (sequenceNumberLock)
{
if (messagesInFlight.ContainsKey(sequenceNumber))
{
throw new InvalidOperationException("Internal Error - duplicate messages in flight");
}
//Debug.WriteLine("Adding sequenceNumber - " + sequenceNumber);
messagesInFlight.Add(sequenceNumber, new CiiMessageTracker(completion));
}
}
private bool SendCommand( byte[] type,
uint subcommand,
byte[] data,
CommandCompletion completion,
out uint sequenceNumber)
{
if (connectionState != ConnectionState.Connected)
{
Debug.WriteLine("Failing SendCommand() - not connected!");
sequenceNumber = 0;
return false;
}
uint newSequenceNumber = messagesInFlight.SequenceNumber;
byte[] sequenceBytes = BitConverter.GetBytes(newSequenceNumber);
byte[] subcommandBytes = BitConverter.GetBytes(subcommand);
byte[] SendBuffer;
sequenceNumber = newSequenceNumber;
//
// Can't optimize this, we need a single buffer to send.
// We have to do the memcpy.
//
if (data != null)
{
SendBuffer = new byte[type.Length +
sequenceBytes.Length +
subcommandBytes.Length +
data.Length];
}
else
{
SendBuffer = new byte[type.Length +
sequenceBytes.Length +
subcommandBytes.Length];
}
int destIndex = 0;
Array.Copy(type, 0, SendBuffer, destIndex, type.Length);
destIndex += type.Length;
Array.Copy(sequenceBytes, 0, SendBuffer, destIndex, sequenceBytes.Length);
destIndex += sequenceBytes.Length;
Array.Copy(subcommandBytes, 0, SendBuffer, destIndex, subcommandBytes.Length);
if (data != null)
{
destIndex += subcommandBytes.Length;
Array.Copy(data, 0, SendBuffer, destIndex, data.Length);
}
logger.Log("COMMAND", SendBuffer, SendBuffer.Length);
messagesInFlight.Add(newSequenceNumber, completion);
bool Success = backEndManager.SendMessage(SendBuffer);
if (!Success)
{
messagesInFlight.Delete(newSequenceNumber);
sequenceNumber = 0;
}
return Success;
}
public bool SendGetCommand(uint subcommand,
byte[] data,
CommandCompletion completion)
{
uint sequenceNumber;
return SendGetCommand(subcommand, data, completion, out sequenceNumber);
}
public bool SendGetCommand(uint subcommand,
byte[] data,
CommandCompletion completion,
out uint sequenceNumber)
{
return SendCommand(MessageTypeGet, subcommand, data, completion, out sequenceNumber);
}
public bool SendActionCommand( uint subcommand,
byte[] data,
CommandCompletion completion,
out uint sequenceNumber)
{
if ((grantedAccess == CiiAccessLevel.AlEngineering) ||
(grantedAccess == CiiAccessLevel.AlMaster) ||
(grantedAccess == CiiAccessLevel.AlLocalUI))
{
return SendCommand(MessageTypeAction, subcommand, data, completion, out sequenceNumber);
}
else
{
sequenceNumber = 0;
return false;
}
}
public CiiMessageTracker(CommandCompletion completion)
{
ackReceived = false;
this.completion = completion;
}
