initial implementation

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

handler.go

@@ -0,0 +1,35 @@
+package tcp
+
+import (
+	"net"
+
+	"github.com/unistack-org/micro/v3/registry"
+	"github.com/unistack-org/micro/v3/server"
+)
+
+type Handler interface {
+	Serve(net.Conn)
+}
+
+type tcpHandler struct {
+	opts       server.HandlerOptions
+	eps        []*registry.Endpoint
+	hd         interface{}
+	maxMsgSize int
+}
+
+func (h *tcpHandler) Name() string {
+	return "handler"
+}
+
+func (h *tcpHandler) Handler() interface{} {
+	return h.hd
+}
+
+func (h *tcpHandler) Endpoints() []*registry.Endpoint {
+	return h.eps
+}
+
+func (h *tcpHandler) Options() server.HandlerOptions {
+	return h.opts
+}