Bluetooth blues (stream related I believe)

[Darrin Smith]

I have instances where I seem to be missing header information sent to me over a Bluetooth data stream. I am also wondering if I am getting all of the data or not (truncating before the end).

My app is based off of the BluettothChat application for Android. Here is the code I am wondering about:

	private class ConnectedThread extends Thread
	{
		private final BluetoothSocket mmSocket;
		private final InputStream     mmInStream;
		private final OutputStream    mmOutStream;

		public ConnectedThread(BluetoothSocket socket) 
		{
			mmSocket = socket;
			InputStream tmpIn = null;
			OutputStream tmpOut = null;
		
			// Get the BluetoothSocket input and output streams
			try
			{
				tmpIn  = socket.getInputStream();
				tmpOut = socket.getOutputStream();
			}
			catch (IOException e)
			{
				Log.e(TAG, "temp sockets not created", e);
			}
			
			mmInStream  = tmpIn;
			mmOutStream = tmpOut;
		}


		public void run()
		{
			byte[] buffer = new byte[1024];
			int bytes;
			
			// Keep listening to the InputStream while connected
			while (true)
			{
				try
				{
					// Read from the InputStream
					bytes = mmInStream.read(buffer);              //<-------- WHY DO WE NOT CHECK FOR -1?
					
					// Send the obtained bytes to the UI Activity
			                mHandler.obtainMessage(MESSAGE_READ, bytes, -1, buffer).sendToTarget(); //<--The buffer sometimes seems to be missing the first byte or so.
				}
				catch (IOException e)
				{
					Log.e(TAG, "disconnected", e);
					connectionLost();
					break;
				}
			}
		}
...

Now to me, this LOOKS like it could miss data since it never checks for a -1 that I understand indicates when the end the stream has been reached.

Anyone have an idea based on this code (which again, comes from Google's BluetoothChat example app) might not get the beginning bytes of a stream on occasion and also, if it looks like it will get all of the stream given it never checks for the end of it.

Thanks!!!