/// <summary>
/// Invoked after the read response has been received from the ECU
/// </summary>
private void BlockReadResponseReceived(IAsyncResult asyncResult)
{
BlockReadAsyncResult internalState = (BlockReadAsyncResult)asyncResult.AsyncState;
try
{
SsmPacket response = internalState.Parser.EndReadFromStream(asyncResult);
// Uncomment for easier debugging:
//byte[] data = response.Data;
//SsmCommand command = response.Command;
//int payloadLength = response.PayloadLength;
//IList<byte> values = response.Values;
foreach (byte value in response.Values)
{
internalState.ValueList.Add(value);
}
}
catch (IOException ex)
{
internalState.Exception = ex;
}
catch (SecurityException ex)
{
internalState.Exception = ex;
}
internalState.Completed();
}
/// <summary>
/// Read a block of RAM from the ECU
/// </summary>
public IAsyncResult BeginBlockRead(int address, int length, AsyncCallback callback, object state)
{
this.BeginOperation();
BlockReadAsyncResult internalState = new BlockReadAsyncResult(callback, state);
SsmPacket request = SsmPacket.CreateBlockReadRequest(address, length);
this.stream.BeginWrite(
request.Data,
0,
request.Data.Length,
this.BlockReadRequestWritten,
internalState);
return(internalState);
}
/// <summary>
/// Returns the read results to the caller
/// </summary>
public byte[] EndBlockRead(IAsyncResult asyncResult)
{
BlockReadAsyncResult internalState = (BlockReadAsyncResult)asyncResult;
try
{
this.EndOperation();
if (internalState.Exception != null)
{
throw internalState.Exception;
}
return(internalState.Values);
}
finally
{
//internalState.Dispose();
}
}
/// <summary>
/// Invoked after the read request has been written to the ECU - begins waiting for the response
/// </summary>
private void BlockReadRequestWritten(IAsyncResult asyncResult)
{
BlockReadAsyncResult internalState = (BlockReadAsyncResult)asyncResult.AsyncState;
try
{
this.stream.EndWrite(asyncResult);
internalState.Parser.BeginReadFromStream(
stream,
BlockReadResponseReceived,
internalState);
}
catch (IOException ex)
{
internalState.Exception = ex;
internalState.Completed();
}
catch (SecurityException ex)
{
internalState.Exception = ex;
internalState.Completed();
}
}
