Socket in GNU

Hi:

I want to use Click to implement MAC and GNUradio to implement PHY,
which are
connected by unix socket. Now, I have written a client socket in C++
signal
block of GNU and a server socket in Click. But I don’t know what should
I do
next in Gnuradio? Should I have to connect this socket
to “gr_file_descriptor_source(or sink)”? or what should I do that can
let
Click to control the packet in GNU?

Any Comments will be appreciated!!
Thanks!
KC Huang

On Wed, Sep 05, 2007 at 04:26:09PM -0400, KC Huang wrote:

Thanks!
KC Huang

Hi KC,

Sorry for the delay getting back to you.

You really didn’t need a client socket block in GNU Radio, you could
have created the socket in python, then passed the file descriptor to
gr_file_descriptor_*, or more likely, just have handled the socket i/o
between Click and GNU Radio in Python.

If you haven’t already, I suggest you take a look at
gnuradio-examples/python/digital/{benchmark_rx,benchmark_tx,tunnel}.py
and see how we move packets between Python and the PHY implemented in
GNU Radio.

tunnel.py uses the tap/tun interface to get packets to/from the
kernel. In your case, instead of using tap/tun, just use your unix
domain socket. tunnel.py implements a carrier sense MAC.
You’ll want to ignore that, and concentrate on the flow of packets
between the kernel, the python code and the PHY implemented in GNU
Radio. What you’re trying to do is quite similar.

Eric

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