public void SendMessage(TransactionMessage message)
{
// Ensure that we aren't going to run over memory
if (message.DataBuffer.Length < message.DataOffset + message.DataLength)
{
throw new ArgumentException("DataOffset + DataLength > Message Buffer size");
}
if (message.DataOffset < 0 || message.DataLength < 0)
{
throw new ArgumentException("Either DataOffset or DataLength was negative");
}
// if (message.DataLength + 4 + 4 > DTPConstants.kMaxMessageSize)
// throw new ArgumentException("Frame (header + payload) was too big (> max size)");
// Take frame buffer and copy contents to it
int frameSize = 4 + 4 + message.DataLength;
var frameBuffer = TakeFrameBuffer(frameSize);
fixed(byte *pFrameBuffer = frameBuffer)
fixed(byte *pMessageBuffer = message.DataBuffer)
{
*(uint *)(pFrameBuffer + 0) = (uint)frameSize;
*(uint *)(pFrameBuffer + 4) = (uint)message.TransactionId;
byte *pMessageContent = pMessageBuffer + message.DataOffset;
byte *pFrameBufferContent = pFrameBuffer + 8;
memcpy(new IntPtr(pFrameBufferContent), new IntPtr(pMessageContent), message.DataLength);
}
m_frameBuffersToSend.Add(frameBuffer);
}
/// <summary> /// Processes a message recieved from the remote endpoint /// </summary> /// <param name="session"> /// DSPEx session object, which permits us to send messages. /// </param> /// <param name="message"> /// The recieved DSPEx message which we are to process. /// </param> public abstract void ProcessMessage(IDSPExSession session, TransactionMessage message);