Swapping out event loop group for OS X

[drekka]

This is an alternative I just figured out. It replaces the MultiThreadedEventLoopGroup with a NIOTSEventLoopGroup for OSX >= 10.14.

A lingering thought though is will this bug still be present on Linux? Because I have someone who wants to use this on a linux machine.

[codecov]

Codecov Report

Merging #134 (16003ef) into main (9eff305) will decrease coverage by 0.01%.
The diff coverage is 75.00%.

@@            Coverage Diff             @@
##             main     #134      +/-   ##
==========================================
- Coverage   78.36%   78.34%   -0.02%     
==========================================
  Files          71       71              
  Lines        3046     3039       -7     
==========================================
- Hits         2387     2381       -6     
+ Misses        659      658       -1     

Impacted Files	Coverage Δ
Sources/Hummingbird/Application.swift	93.33% <75.00%> (-1.75%)	⬇️
...s/HummingbirdFoundation/Files/FileMiddleware.swift	87.41% <0.00%> (+0.83%)	⬆️

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[adam-fowler]

You can set the eventLoopGroup in the constructor of HBApplication. If you really wanted to use NIOTSEventLoopGroup on macOS you can already do that. But you'll find your server while running on Mac will service considerably less requests as NIOTSEventLoop is really designed for client applications. So the default should be MultiThreadedEventLoopGroup on macOS. It is NIOTSEventLoopGroup on iOS because iOS doesn't deal with POSIX threads very well.