Rework QPS client/server

Now setup as a driver and N anonymous workers that may become clients or servers.
Will convert async soon.

1 files changed, 2 insertions, 0 deletions

diff --git a/test/cpp/qps/server.h b/test/cpp/qps/server.h
index 25c15e4d0c..35d1aed19f 100644
--- a/test/cpp/qps/server.h
+++ b/test/cpp/qps/server.h
@@ -42,6 +42,8 @@ namespace testing {
 class Server {
  public:
   virtual ~Server() {}
+
+  virtual ServerStats Mark() = 0;
 };
 
 std::unique_ptr<Server> CreateSynchronousServer(const ServerConfig& config, int port);