From b216c3431469af4723cc10ea6712d3f7e8301c98 Mon Sep 17 00:00:00 2001
From: yang-g <yangg@google.com>
Date: Thu, 13 Jun 2019 22:15:53 -0700
Subject: [PATCH] Mark some methods virtual

---
 include/grpcpp/impl/codegen/server_callback.h | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/include/grpcpp/impl/codegen/server_callback.h b/include/grpcpp/impl/codegen/server_callback.h
index da08ec963e4..ab47873e40a 100644
--- a/include/grpcpp/impl/codegen/server_callback.h
+++ b/include/grpcpp/impl/codegen/server_callback.h
@@ -348,7 +348,8 @@ class ServerBidiReactor : public internal::ServerReactor {
 
  private:
   friend class ServerCallbackReaderWriter<Request, Response>;
-  void BindStream(ServerCallbackReaderWriter<Request, Response>* stream) {
+  virtual void BindStream(
+      ServerCallbackReaderWriter<Request, Response>* stream) {
     stream_ = stream;
   }
 
@@ -382,7 +383,9 @@ class ServerReadReactor : public internal::ServerReactor {
 
  private:
   friend class ServerCallbackReader<Request>;
-  void BindReader(ServerCallbackReader<Request>* reader) { reader_ = reader; }
+  virtual void BindReader(ServerCallbackReader<Request>* reader) {
+    reader_ = reader;
+  }
 
   ServerCallbackReader<Request>* reader_;
 };
@@ -424,7 +427,9 @@ class ServerWriteReactor : public internal::ServerReactor {
 
  private:
   friend class ServerCallbackWriter<Response>;
-  void BindWriter(ServerCallbackWriter<Response>* writer) { writer_ = writer; }
+  virtual void BindWriter(ServerCallbackWriter<Response>* writer) {
+    writer_ = writer;
+  }
 
   ServerCallbackWriter<Response>* writer_;
 };