[plug] Named pipe. Solution to programming problem?

[Timothy White]

James Devenish wrote:
>>I don't want the program always running, only when called.
> 
> 
> Okay...don't call it unless you want it.
> 
> 
>>I don't want to run currently_active_computers every 5 seconds to
>>ensure that the list of active computers is up to date.
> 
> 
> So...what *is* keeping the list up-to-date, then?

Basically I want the list to update when ever a program tries to access 
it (to keep resources down to a minimum) and I can't modify every 
program so that they run a program every time they read the file.
I am more clear now?

Thanks
Tim
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