Add bin and edit workflow

bin/gems/ethon-0.16.0/lib/ethon/multi/stack.rb

@@ -0,0 +1,49 @@
+# frozen_string_literal: true
+module Ethon
+  class Multi
+
+    # This module provides the multi stack behaviour.
+    module Stack
+
+      # Return easy handles.
+      #
+      # @example Return easy handles.
+      #   multi.easy_handles
+      #
+      # @return [ Array ] The easy handles.
+      def easy_handles
+        @easy_handles ||= []
+      end
+
+      # Add an easy to the stack.
+      #
+      # @example Add easy.
+      #   multi.add(easy)
+      #
+      # @param [ Easy ] easy The easy to add.
+      #
+      # @raise [ Ethon::Errors::MultiAdd ] If adding an easy failed.
+      def add(easy)
+        return nil if easy_handles.include?(easy)
+
+        code = Curl.multi_add_handle(handle, easy.handle)
+        raise Errors::MultiAdd.new(code, easy) unless code == :ok
+        easy_handles << easy
+      end
+
+      # Delete an easy from stack.
+      #
+      # @example Delete easy from stack.
+      #
+      # @param [ Easy ] easy The easy to delete.
+      #
+      # @raise [ Ethon::Errors::MultiRemove ] If removing an easy failed.
+      def delete(easy)
+        if easy_handles.delete(easy)
+          code = Curl.multi_remove_handle(handle, easy.handle)
+          raise Errors::MultiRemove.new(code, handle) unless code == :ok
+        end
+      end
+    end
+  end
+end