Basic support for address_resolv using Resolv.

lib/async/scheduler.rb

@@ -25,6 +25,7 @@
 require 'console'
 require 'event'
 require 'timers'
+require 'resolv'
 
 module Async
 	class Scheduler < Node
@@ -134,6 +135,10 @@ def kernel_sleep(duration)
 			self.block(nil, duration)
 		end
 
+		def address_resolve(hostname)
+			::Resolv.getaddresses(hostname)
+		end
+
 		def io_wait(io, events, timeout = nil)
 			fiber = Fiber.current
 

spec/async/scheduler/address_spec.rb

@@ -0,0 +1,33 @@
+# Copyright, 2021, by Samuel G. D. Williams. <http://www.codeotaku.com>
+# 
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+# 
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+# 
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+require 'async/scheduler'
+
+RSpec.describe Async::Scheduler, if: Async::Scheduler.supported? do
+	include_context Async::RSpec::Reactor
+
+	describe ::Addrinfo do
+		it "can resolve addresses" do
+			addresses = Addrinfo.getaddrinfo("www.google.com", "80")
+
+			expect(addresses).to_not be_empty
+		end
+	end
+end