I'm trying to write a short serial-to-Ethernet adapter program for Windows, using Win32::SerialPort on ActiveState perl on Win2K.

I've got it basically working by alternately checking if any data is available on the socket, then if any data is available on the serial port. To avoid a timeout in the application I'm using this with, I have to use very short timeouts, and I end up polling several times a second.

Is there a better way to do this? On Unix, I would just use select on the socket filehandle and the tty filehandle, but unfortunately, Win32::SerialPort doesn't return a filehandle that I can select on, and Windows select only works with sockets.

In reply to Writing a serial-to-Ethernet adapter with Win32::SerialPort by sgifford

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