api change to string_ref

1 files changed, 6 insertions, 4 deletions

diff --git a/include/grpc++/client_context.h b/include/grpc++/client_context.h
index ee28f360cb..c4724cc1f0 100644
--- a/include/grpc++/client_context.h
+++ b/include/grpc++/client_context.h
@@ -138,12 +138,14 @@ class ClientContext {
   void AddMetadata(const grpc::string& meta_key,
                    const grpc::string& meta_value);
 
-  const std::multimap<grpc::string, grpc::string>& GetServerInitialMetadata() {
+  const std::multimap<grpc::string_ref, grpc::string_ref>&
+  GetServerInitialMetadata() {
     GPR_ASSERT(initial_metadata_received_);
     return recv_initial_metadata_;
   }
 
-  const std::multimap<grpc::string, grpc::string>& GetServerTrailingMetadata() {
+  const std::multimap<grpc::string_ref, grpc::string_ref>&
+  GetServerTrailingMetadata() {
     // TODO(yangg) check finished
     return trailing_metadata_;
   }
@@ -234,8 +236,8 @@ class ClientContext {
   mutable std::shared_ptr<const AuthContext> auth_context_;
   struct census_context* census_context_;
   std::multimap<grpc::string, grpc::string> send_initial_metadata_;
-  std::multimap<grpc::string, grpc::string> recv_initial_metadata_;
-  std::multimap<grpc::string, grpc::string> trailing_metadata_;
+  std::multimap<grpc::string_ref, grpc::string_ref> recv_initial_metadata_;
+  std::multimap<grpc::string_ref, grpc::string_ref> trailing_metadata_;
 
   grpc_call* propagate_from_call_;
   PropagationOptions propagation_options_;