Global hook for doing something in response to a synchronous server call

1 files changed, 12 insertions, 0 deletions

diff --git a/include/grpc++/server.h b/include/grpc++/server.h
index 1a62df5698..f5fc51ed1f 100644
--- a/include/grpc++/server.h
+++ b/include/grpc++/server.h
@@ -56,6 +56,7 @@ class AsyncGenericService;
 class RpcService;
 class RpcServiceMethod;
 class ServerAsyncStreamingInterface;
+class ServerContext;
 class ThreadPoolInterface;
 
 /// Models a gRPC server.
@@ -84,6 +85,17 @@ class Server GRPC_FINAL : public GrpcLibrary, private CallHook {
   /// call \a Shutdown for this function to ever return.
   void Wait();
 
+  /// Global Callbacks
+  ///
+  /// Can be set exactly once per application to install hooks whenever
+  /// a server event occurs
+  class GlobalCallbacks {
+   public:
+    virtual void PreSynchronousRequest(ServerContext* context) = 0;
+    virtual void PostSynchronousRequest(ServerContext* context) = 0;
+  };
+  static void SetGlobalCallbacks(GlobalCallbacks* callbacks);
+
  private:
   friend class AsyncGenericService;
   friend class AsynchronousService;