JezK
Edit File: non-blocking-channel-operations.rb
#!/usr/bin/env ruby $: << File.expand_path('../../../lib', __FILE__) require 'concurrent-edge' Channel = Concurrent::Channel ## Go by Example: Non-Blocking Channel Operations # https://gobyexample.com/non-blocking-channel-operations messages = Channel.new # unbuffered signals = Channel.new # unbuffered Channel.select do |s| s.take(messages) { |msg| print "received message #{msg}\n" } s.default { print "no message received\n" } end message = 'hi' Channel.select do |s| s.put(messages, message) { |msg| print "sent message #{msg}\n" } s.default { print "no message sent\n" } end Channel.select do |s| s.case(messages, :~) { |msg| print "received message #{msg}\n" } # alias for `s.take` s.case(signals, :~) { |sig| print "received signal #{sig}\n" } # alias for `s.take` s.default { print "no activity\n" } end __END__ no message received no message sent no activity