XMLRPC Client: Difference between revisions

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: Name of the local variable
: Name of the local variable


== Example Flowgraph ==


Insert description of flowgraph here, then show a screenshot of the flowgraph and the output if there is an interesting GUI. Currently we have no standard method of uploading the actual flowgraph to the wiki or git repo, unfortunately. The plan is to have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
This block will create an XMLRPC client. The client will execute the callback on the server when the variable is changed. The callback should be the name of a function registered on the server. The variable should be an expression containing the name of a variable in the flowgraph.
 
<b>(''R''):</b> <span class="plainlinks">[https://wiki.gnuradio.org/index.php/GNURadioCompanion#Variable_Controls ''Run-time adjustable'']</span>
 
; Address
: default: localhost
; Port
: default: 8080
; Callback
: default: set_
; Variable
: default: <blank>
 
==Example Flowgraph==
 
This flowgraph is for version 3.9+
 
This flowgraph should be used in conjunction with the 'siggen_xmlrpc_server.grc' flowgraph. Both are located in the 'gr-blocks/examples/xmlrpc' directory in GNURadio.
Upon execution this flowgraph opens a GUI window with a single GUI Range slider. When the slider is moved the XMLRPC Client Block sends SET messages to the specified XMLRPC server. If the server is running and can be accessed on the specified IP address/port, the SET commands will change the value of the frequency ('rmt_freq') variable in the server flowgraph. This will be reflected in the GUI window on the server flowgraph (see [[XMLRPC_Server]]).
 
[[File:Xmlrpc_client.png]]


== Source Files ==
== Source Files ==

Revision as of 08:06, 21 November 2021

This block will create an XMLRPC client. The client will execute the callback on the server when the variable is changed.

The callback should be a the name of a function registered on the server. The variable should be an expression containing a the name of a variable in flow graph.

Parameters

(R): Run-time adjustable

Address
Address of the server
Port
Port of the server
Callback (R)
Name of the distant function
Variable (R)
Name of the local variable


This block will create an XMLRPC client. The client will execute the callback on the server when the variable is changed. The callback should be the name of a function registered on the server. The variable should be an expression containing the name of a variable in the flowgraph.

(R): Run-time adjustable

Address
default: localhost
Port
default: 8080
Callback
default: set_
Variable
default: <blank>

Example Flowgraph

This flowgraph is for version 3.9+

This flowgraph should be used in conjunction with the 'siggen_xmlrpc_server.grc' flowgraph. Both are located in the 'gr-blocks/examples/xmlrpc' directory in GNURadio. Upon execution this flowgraph opens a GUI window with a single GUI Range slider. When the slider is moved the XMLRPC Client Block sends SET messages to the specified XMLRPC server. If the server is running and can be accessed on the specified IP address/port, the SET commands will change the value of the frequency ('rmt_freq') variable in the server flowgraph. This will be reflected in the GUI window on the server flowgraph (see XMLRPC_Server).

Xmlrpc client.png

Source Files

Block definition
[1]
Retrieved from "https://wiki.gnuradio.org/index.php?title=XMLRPC_Client&oldid=9104"