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Entry  29 Jan 2020, Pintaudi Giorgio, Info, Force triggering of idle routine of a frontend 
    Reply  02 Feb 2020, Konstantin Olchanski, Info, Force triggering of idle routine of a frontend 
       Reply  02 Feb 2020, Pintaudi Giorgio, Info, Force triggering of idle routine of a frontend 
    Reply  03 Feb 2020, Stefan Ritt, Info, Force triggering of idle routine of a frontend 
       Reply  04 Feb 2020, Pintaudi Giorgio, Info, Force triggering of idle routine of a frontend 
          Reply  07 Feb 2020, Stefan Ritt, Info, Force triggering of idle routine of a frontend 
             Reply  07 Feb 2020, Pintaudi Giorgio, Info, Force triggering of idle routine of a frontend 
                Reply  09 Feb 2020, Stefan Ritt, Info, Force triggering of idle routine of a frontend 
                   Reply  10 Feb 2020, Konstantin Olchanski, Info, Force triggering of idle routine of a frontend 
                Reply  12 Feb 2020, Stefan Ritt, Info, Force triggering of idle routine of a frontend 
Message ID: 1799     Entry time: 29 Jan 2020     Reply to this: 1802   1806
Author: Pintaudi Giorgio 
Topic: Info 
Subject: Force triggering of idle routine of a frontend 
Hello!
As you know, the generic MIDAS frontend has a class driver, device driver, bus driver
structure. Assuming a slow device frontend, its class driver should have a routine of type 
INT idle (EQUIPMENT * pequipment)
This routine is called with a rate controlled by the
"/Equipment/<frontend name>/Common/Event limit" parameter.
The idle routine usually reads one channel of the frontend and stores the results
in the "/Equipment/<frontend name>/Variables" ODB folder.

My question is: it is possible to force (from the code) the frontend to call the idle routine at a
certain point. This is because I need to update the "/Equipment/<frontend name>/Variables"
variables inside the "begin_of_run" routine, at a very specific time.

One dirty solution would be to increase a lot the reading rate ... but I need this
increased reading rate only during the run start while I need a low reading rate
during the run. So the question: is it possible to increase and decrease the reading
rate (event limit) of a frontend without stopping and restarting it?

If you need more info, please let me know.
Thank you
Giorgio
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