start refactoring

utils/net/conn.go

@@ -0,0 +1,32 @@
+// Copyright 2016 fatedier, fatedier@gmail.com
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package net
+
+import (
+	"net"
+
+	"github.com/fatedier/frp/utils/log"
+)
+
+// Conn is the interface of connections used in frp.
+type Conn interface {
+	net.Conn
+	log.Logger
+}
+
+type Listener interface {
+	Accept() (Conn, error)
+	Close() error
+}