[fpc-pascal] Getting Last User Input reliably

[wkitty42 at windstream.net]

On 12/5/21 11:10 AM, James Richters via fpc-pascal wrote:
> So the only thing I need to consider is times of longer than 49.7 days
> without user input... because if it was exactly 50 days, it would look like
> 0.3 days as the first rollover would be forgotten. To take care of this I can
> just check it in my main program loop and keep updating my own datetime
> variable of last user input.
i don't understand why you are keeping up with user input times by counting 
ticks... you said that one second accuracy is just fine so Keep It Simple, man, 
and don't over engineer it...

grab the unix timestamp NOW each time they input something and store that... 
when you want to know how long it has been since their last input, just subtract 
lastUserInputTime from currentNow and you have your elapsed time...

if you use a 32bit signed variable, you still have 17 years before you have to 
even think about a rollover... in this day in age, i'd use a 64bit signed 
variable along with the 64bit unix time routines and not worry about it for the 
next 292 billion years ;)

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