[Tutor] demon / app I/F better way ?

[Kent Johnson]

What about running the demon as a separate thread in the main app? Use a 
Queue to send data from the demon to the main app. The app checks for 
data in the queue every second.

Or, use a socket connection between the demon and the main app...

Kent

Dave S wrote:
> Hi there,
> 
> I am planning a python app but have hit a dilemma.
> 
> I have a time critical python app that will be running constantly as a 
> demon, checking a data web page for updates & archiving any changes. 
> When a change occurs it needs to signal another python app that new data 
> has arrived.
> 
> 
> OK this is the way I am planning to do this, if there is a neater way 
> please shout :-D
> 
> the demon dumps data in /data/data_new & also changes the state of a 
> flag /data/data_flag to true when it has found new changes
> 
> my main app when it is ready to accept data checks the status of 
> /data/data_flag every second, if it changes to a true state reads in 
> /data/data_new & sets /data/data_flag to false, performs processing then 
> checks /data/data_flag ...
> 
> 
> This will work (I think ;-) ) but seems a bit clunky, anyone got a more 
> elegant solution?
> 
> Dave
> 
> 
> 
> 
> 
> 
> 
> 
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