hitimes should certainly be compatible with Ruby 2.5.

@ioquatix @98-f355-f1 I have also just double checked and added ruby 2.5 to my travis ci config for hitimes. Yes - hitimes does work just fine on 2.5.

Can you paste your script and error log?

I was out of town for 2 days, update on issues:
It seems that I am no longer getting the hitimes errors, so that is closed. Thanks to hitimes.
I am playing around with all of the socketry gems, but only so far have the async gem going. The rest just flag all kinds of initialization errors;
I have install all the gems from the socketry repository, including the nio gem, if needed.

For this LIGHTIO gem, trying to run some of the examples:
Traceback (most recent call last):
17: from ./lightioexample.rb:1:in <main>' 16: from C:/Ruby25/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:39:in require'
15: from C:/Ruby25/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:133:in rescue in require' 14: from C:/Ruby25/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:133:in require'
13: from C:/Ruby25/lib/ruby/gems/2.5.0/gems/lightio-0.4.4/lib/lightio.rb:5:in <top (required)>' 12: from C:/Ruby25/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in require'
11: from C:/Ruby25/lib/ruby/site_ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in require' 10: from C:/Ruby25/lib/ruby/gems/2.5.0/gems/lightio-0.4.4/lib/lightio/core.rb:2:in <top (required)>'
9: from C:/Ruby25/lib/ruby/gems/2.5.0/gems/lightio-0.4.4/lib/lightio/core.rb:2:in require_relative' 8: from C:/Ruby25/lib/ruby/gems/2.5.0/gems/lightio-0.4.4/lib/lightio/core/ioloop.rb:4:in <top (required)>'
7: from C:/Ruby25/lib/ruby/gems/2.5.0/gems/lightio-0.4.4/lib/lightio/core/ioloop.rb:67:in <module:Core>' 6: from C:/Ruby25/lib/ruby/gems/2.5.0/gems/lightio-0.4.4/lib/lightio/core/ioloop.rb:59:in current'
5: from C:/Ruby25/lib/ruby/gems/2.5.0/gems/lightio-0.4.4/lib/lightio/core/ioloop.rb:59:in new' 4: from C:/Ruby25/lib/ruby/gems/2.5.0/gems/lightio-0.4.4/lib/lightio/core/ioloop.rb:12:in initialize'
3: from C:/Ruby25/lib/ruby/gems/2.5.0/gems/lightio-0.4.4/lib/lightio/core/ioloop.rb:12:in new' 2: from C:/Ruby25/lib/ruby/gems/2.5.0/gems/lightio-0.4.4/lib/lightio/core/backend/nio.rb:64:in initialize'
1: from C:/Ruby25/lib/ruby/gems/2.5.0/gems/lightio-0.4.4/lib/lightio/core/backend/nio.rb:64:in new' C:/Ruby25/lib/ruby/gems/2.5.0/gems/nio4r-2.3.1/lib/nio/selector.rb:17:in initialize': unsupported backend: (ArgumentError)

For the async-http, when I run the async-http example.
Traceback (most recent call last):
11: from C:/Ruby25/lib/ruby/gems/2.5.0/gems/async-1.10.0/lib/async/task.rb:74:in block in initialize' 10: from ./async-http.rb:20:in block (2 levels) in

For the falcon, it's not clear how to run that? falcon serve... from where? the cmd prompt? otherwise it flags the run command.
Traceback (most recent call last):
./falconexample.rb:14:in <main>': undefined method run' for main:Object (NoMethodError)

For the socketry itself, so far 2 examples have run... so good so far there.

Thanks for looking into this.

@98-f355-f1 LightIO is a bit of an experiment, I'm not sure if the long term plan is to complete it or maintain it.

Regarding falcon, just run it in a directory with a config.ru file and it will serve it. Check falcon --help for more details. Otherwise, feel free to open an issue on that repo, I am happy to help you and improve the documentation where it makes sense.

Also, my understanding is that the actual socketry gem is no longer being actively maintained, although I believe it's fairly feature complete.

Regarding Socket::SO_REUSEPORT (NameError), can you please open an issue on the async-io repository. Thanks :) It looks like an issue with Windows.

Seems LightIO crashed because it can't detect a usable NIO backend(this line), I thought use nil argument should let NIO automatic find a usable backend(or maybe it's another windows issue?).

I do not have windows installed, you can try to specific which backend to use manually https://github.com/socketry/lightio/wiki/Basic-Usage#choose-backend