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#	XMLRPC
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XMLRPC allows a program to make remote function call over tcp.
ExecFlowGraphXMLRPC.py executes a flow graph with an XMLRPC server.
Any programing language can control the flow graph by making remote function calls.
The functions calls can read and write to the flow graph's variables.
The functions are documented at the top of ExecFlowGraphXMLRPC.py.

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#	Executing the example
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This example requires audio support in gnuradio!

Start the server by executing server.sh in this directory.
The server.sh script will execute ExecFlowGraphXMLRPC.py on tone.grc.xml

Start the client by executing client.py. 
The client will change the frequency of the tone once per second.
The client changes the tone by making XMLRPC calls that set the variable 'freq'.
