improve ss

pkg/listener/listener.go

@@ -0,0 +1,23 @@
+package listener
+
+import (
+	"errors"
+	"net"
+
+	"github.com/go-gost/gost/pkg/metadata"
+)
+
+var (
+	ErrClosed = errors.New("accpet on closed listener")
+)
+
+// Listener is a server listener, just like a net.Listener.
+type Listener interface {
+	Init(metadata.Metadata) error
+	net.Listener
+}
+
+// Accepter represents a network endpoint that can accept connection from peer.
+type Accepter interface {
+	Accept() (net.Conn, error)
+}