[AsyncFunctionHandler] return execution time in nanoseconds

[saikishor]

I think this is useful to have more statistical data when we add to the CM

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.51%. Comparing base (926f097) to head (5fe33ee).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #181      +/-   ##
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+ Coverage   75.36%   75.51%   +0.14%     
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  Files           8        8              
  Lines         341      343       +2     
  Branches       54       54              
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+ Hits          257      259       +2     
  Misses         50       50              
  Partials       34       34              

Flag	Coverage Δ
unittests	75.51% <100.00%> (+0.14%)	⬆️

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Files with missing lines	Coverage Δ
include/realtime_tools/async_function_handler.hpp	91.25% <100.00%> (+0.22%)	⬆️

[bmagyar]

Ah this is nice! Thank you

[christophfroehlich]

Shouldn't a nanosecond be represented in a double value of seconds? The time delta will be <1.0 -> we have ~15 digits after the comma?

[saikishor]

Shouldn't a nanosecond be represented in a double value of seconds? The time delta will be <1.0 -> we have ~15 digits after the comma?

@christophfroehlich
Yes, but if you want to see the spikes in that 15 digits, it is not very easy. Instead, having it as nanoseconds can let you easy. This is the most granularity you can get