Handle Thread across routes in sinatra

gistfile1.rb

require 'sinatra'

set :threads, []

get '/' do
  settings.threads << Thread.new { sleep 10 }
  'New thread created'
end

get '/threads' do
  erb :threads
end

__END__

@@ threads
The total number of threads is: <%= settings.threads.size %>

<% settings.threads.each_with_index do |thread, index| %>
  <br />
  <p>Thread <%= index %> inspect: <%= thread.inspect.gsub!(/<|>/, '<' => '&lt;', '>' => '&gt;') %></p>
  <p>Thread <%= index %> status: <%= thread.status %></p>
<% end %>