Use CloseRead and CloseWrites

essentials/conns.go

@@ -0,0 +1,17 @@
+package essentials
+
+import "net"
+
+type CloseableReader interface {
+	CloseRead() error
+}
+
+type CloseableWriter interface {
+	CloseWrite() error
+}
+
+type Conn interface {
+	net.Conn
+	CloseableReader
+	CloseableWriter
+}