Provide explicit API for user to set user agent string prefix

1 files changed, 6 insertions, 3 deletions

diff --git a/include/grpc++/support/channel_arguments.h b/include/grpc++/support/channel_arguments.h
index a2960a7ecc..72f52657cd 100644
--- a/include/grpc++/support/channel_arguments.h
+++ b/include/grpc++/support/channel_arguments.h
@@ -51,7 +51,7 @@ class ChannelArgumentsTest;
 /// concrete setters are provided.
 class ChannelArguments {
  public:
-  ChannelArguments() {}
+  ChannelArguments();
   ~ChannelArguments() {}
 
   ChannelArguments(const ChannelArguments& other);
@@ -62,8 +62,8 @@ class ChannelArguments {
 
   void Swap(ChannelArguments& other);
 
-  /// Populates this instance with the arguments from \a channel_args. Does not
-  /// take ownership of \a channel_args.
+  /// Dump arguments in this instance to \a channel_args. Does not take
+  /// ownership of \a channel_args.
   ///
   /// Note that the underlying arguments are shared. Changes made to either \a
   /// channel_args or this instance would be reflected on both.
@@ -77,6 +77,9 @@ class ChannelArguments {
   /// Set the compression algorithm for the channel.
   void SetCompressionAlgorithm(grpc_compression_algorithm algorithm);
 
+  /// The given string will be sent at the front of the user agent string.
+  void SetUserAgentPrefix(const grpc::string& user_agent_prefix);
+
   // Generic channel argument setters. Only for advanced use cases.
   /// Set an integer argument \a value under \a key.
   void SetInt(const grpc::string& key, int value);