Stop server on context cancellation

muxserver/muxserver.go

@@ -30,18 +30,24 @@ func NewWithOptions(handler drpc.Handler, opts drpcserver.Options) *Server {
 // Serve listens on the given listener and handles all multiplexed
 // streams.
 func (s *Server) Serve(ctx context.Context, ln net.Listener) error {
-	for {
-		conn, err := ln.Accept()
-		if err != nil {
-			return err
-		}
+	connCh := make(chan net.Conn, 2)
+	errCh := make(chan error, 2)
+	go connChannel(ln, connCh, errCh)
 
+	for {
+		select {
+		case conn := <-connCh:
 			sess, err := yamux.Server(conn, nil)
 			if err != nil {
 				return err
 			}
 
 			go s.handleSession(ctx, sess)
+		case err := <-errCh:
+			return err
+		case <-ctx.Done():
+			return nil
+		}
 	}
 }
 
@@ -62,3 +68,14 @@ func (s *Server) handleSession(ctx context.Context, sess *yamux.Session) {
 func (s *Server) ServeOne(ctx context.Context, conn io.ReadWriteCloser) error {
 	return s.srv.ServeOne(ctx, conn)
 }
+
+func connChannel(ln net.Listener, connCh chan net.Conn, errCh chan error) {
+	for {
+		conn, err := ln.Accept()
+		if err != nil {
+			errCh <- err
+			continue
+		}
+		connCh <- conn
+	}
+}