How to implement Timeout function

[Jerry via Digitalmars-d-learn]

On Sunday, 27 August 2017 at 15:56:14 UTC, Saigon wrote:
> Hi,
>
> Can I have Timeout function like this one [1] in Ruby? I want 
> to check if a TCP service is running, and the check would 
> return error if timeout occurs.
>
> Thanks a lot
>
> [1] https://github.com/ruby/ruby/blob/trunk/lib/timeout.rb

Can it be blocking?