Talk:ZMQ REQ Message Source

From GNU Radio
Jump to: navigation, search

Mini-tutorial as part of the Example Flowgraph section.

Example Flowgraphs

Inter-flowgraph

Request/Reply pairs can be used on one, or two separate, flowgraphs to exchange messages.

REQ REP msg demo fg.png

External Python client (send only)

An external Python program can send messages to a ZMQ REQ Message Source block. An example flowgraph and Python code follow.

GNU Radio as a server

If the GNU Radio flowgraph(s) is configured as a server, the REQ message is processed by the flowgraph and a message is sent back in a REP message as the response. An example flowgraph and Python code follow.