Better implementation of compatibility shims.

lib/io/endpoint/shared_endpoint.rb

@@ -9,16 +9,6 @@
 
 require 'openssl'
 
-class OpenSSL::SSL::SSLServer
-	def close_on_exec=(value)
-		to_io.close_on_exec = value
-	end
-
-	def local_address
-		to_io.local_address
-	end
-end
-
 module IO::Endpoint
 	# Pre-connect and pre-bind sockets so that it can be used between processes.
 	class SharedEndpoint < Generic

lib/io/endpoint/ssl_endpoint.rb

@@ -8,6 +8,38 @@
 
 require 'openssl'
 
+module OpenSSL::SSL::SocketForwarder
+	unless method_defined?(:close_on_exec=)
+		def close_on_exec=(value)
+			to_io.close_on_exec = value
+		end
+	end
+
+	unless method_defined?(:close_on_exec)
+		def local_address
+			to_io.local_address
+		end
+	end
+
+	unless method_defined?(:wait)
+		def wait(*arguments)
+			to_io.wait(*arguments)
+		end
+	end
+
+	unless method_defined?(:wait_readable)
+		def wait_readable(*arguments)
+			to_io.wait_readable(*arguments)
+		end
+	end
+
+	unless method_defined?(:wait_writable)
+		def wait_writable(*arguments)
+			to_io.wait_writable(*arguments)
+		end
+	end
+end
+
 module IO::Endpoint
 	class SSLEndpoint < Generic
 		def initialize(endpoint, **options)

test/io/endpoint/ssl_endpoint.rb

@@ -36,7 +36,7 @@ def client_endpoint(address)
 			expect(client).to be_a(::OpenSSL::SSL::SSLSocket)
 
 			# Wait for the connection to be closed.
-			client.to_io.wait_readable
+			client.wait_readable
 
 			client.close
 		end