[Rxtx] error getting InputStream

[Keith Thorne]

Hi,

I know I am replying to myself a lot at the moment, but more information has 
come to light (These errors are actually happening on a client machine, on 
software that has worked for the past month, and only now has started to 
fail, which is why I am a little slow finding things out)

The errors I have already written about are only symptoms of an orignal 
error. The original error occurs the first time I try to WRITE thte 
OutputStream:

            OutputStream oStream = serialPort.getOutputStream();
            serialPort.notifyOnOutputEmpty(true);

            byte[] bs = encodeMessage(configString.toString());

            oStream.write(bs);
            oStream.flush();

The error occurs on oStream.write(bs); and is:

Input/output error in writeArray

Now writeArray is native code, so I have no idea what is going on there. Any 
help would be appreciated
Thanks
Keith


>From: "Keith Thorne" <hambyiii at hotmail.com>
>Reply-To: RXTX Developers and Users <rxtx at qbang.org>
>To: rxtx at qbang.org
>Subject: Re: [Rxtx] error getting InputStream
>Date: Fri, 04 Aug 2006 11:42:21 +0000
>
>Okay, I made a little mistake in my last message.
>
>The error is not occuring where I thought it was. Instead it is occuring
>when I do the following:
>
>byte[] readBuffer = new byte[128];
>
>try {
>
>   int numBytes = 0;
>   try {
>        Thread.sleep(500);
>   }
>   catch (InterruptedException e)
>   {}
>
>   while (inputStream.available() > 0)
>   {
>        numBytes = inputStream.read(readBuffer);
>   }
>
>   processReceivedData(readBuffer, numBytes);
>}
>catch (IOException e)
>{
>     System.out.println(e.getMessage());
>}
>
>So I guess the error is happening on the inputStream.read(readBuffer)
>
>again, any help is appreciated and again, thanks in advance
>Keith
>
> >From: "Keith Thorne" <hambyiii at hotmail.com>
> >Reply-To: RXTX Developers and Users <rxtx at qbang.org>
> >To: rxtx at qbang.org
> >Subject: [Rxtx] error getting InputStream
> >Date: Fri, 04 Aug 2006 10:52:47 +0000
> >
> >Hi,
> >
> >I have written a program in Java for Windows xp using RXTX (which is why 
>I
> >am using this mailing list :). However, I am getting a problem. I am
> >connecting to a serial port, like so:
> >    private CommPortIdentifier portID;
> >
> >     private boolean openPort(String selectedPort)
> >     {
> >         boolean portFound = false;
> >         Enumeration portList;
> >
> >         portList = CommPortIdentifier.getPortIdentifiers();
> >
> >         while (portList.hasMoreElements())
> >         {
> >             portID = (CommPortIdentifier) portList.nextElement();
> >             if (portID.getPortType() == CommPortIdentifier.PORT_SERIAL)
> >             {
> >                 if (portID.getName().equals(selectedPort))
> >                 {
> >                     portFound = true;
> >                     break;
> >                 }
> >             }
> >         }
> >
> >         return portFound;
> >     }
> >
> >and then I try and get the serial port input stream (leaving out the try
> >and
> >catch for the sake of space):
> >
> >SerialPort serialPort = (SerialPort) portID.open("RFIDReaderComm", 2000);
> >InputStream inputStream = serialPort.getInputStream();
> >
> >but on the getInputStream() I get the following error message:
> >
> >Bad file descriptor in nativeavailable
> >
> >I cannot figure out where it is going wrong...anyone any ideas. A quick
> >answer would be wonderful, as I am kinda under the hammer to get this 
>fixed
> >quickly
> >
> >Thanks in Advance
> >Keith
> >
> >
> >_______________________________________________
> >Rxtx mailing list
> >Rxtx at qbang.org
> >http://mailman.qbang.org/mailman/listinfo/rxtx
>
>
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