Experimental Physics and
Industrial Control System

Hi Florian.

There might be a better way but I use functools.partial to do this, like so:

from p4p.client.thread import Context
from functools import partial

ctxt = Context('pva', nt=False)

def cb(name, value):
    print('New value', name, value['value'])

sub = ctxt.monitor('SOME:PV:NAME', partial(cb, 'SOME:PV:NAME'))

Cheers,

Matt


On 17/05/2022, 10:57, "Tech-talk on behalf of Florian Feldbauer via Tech-talk" <tech-talk-bounces at aps.anl.gov on behalf of tech-talk at aps.anl.gov> wrote:

    Hey all,
    
    I wanted to write a small python script that monitors multiple pvs in 
    our system using p4p.
    If I use the same callback routine for all PVs, is it possible to get 
    the name of the PV, that triggered the callback?
    
    I did not see any attributes of the passed p4p values that could work in 
    identifying the PV.
    
    Thanks in advance for your help,
    Florian
    
    -- 
    Ruhr-Universität Bochum
    AG der Experimentalphysik I
    Dr. Florian Feldbauer
    NB 2/131 / Fach 125
    Universitätsstr. 150
    D-44801 Bochum
    
    Office: NB 2/134
    Phone:  (+49)234 / 32-23563
    Fax:    (+49)234 / 32-14170
    https://paluma.ruhr-uni-bochum.de
    
    

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P4P monitor get pvname Florian Feldbauer via Tech-talk

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