LibIPC: Only start responsiveness timer after sending client a message

Instead of always running the responsiveness timer for IPC clients,
we now only start it after sending a message. This avoids waking up
otherwise idle clients to do ping/pong busywork.

2 files changed, 6 insertions, 0 deletions

diff --git a/Services/WindowServer/ClientConnection.cpp b/Services/WindowServer/ClientConnection.cpp
index dff7ae8d51..56353cda36 100644
--- a/Services/WindowServer/ClientConnection.cpp
+++ b/Services/WindowServer/ClientConnection.cpp
@@ -844,4 +844,9 @@ void ClientConnection::may_have_become_unresponsive()
     });
 }
 
+void ClientConnection::did_become_responsive()
+{
+    set_unresponsive(false);
+}
+
 }
diff --git a/Services/WindowServer/ClientConnection.h b/Services/WindowServer/ClientConnection.h
index b662d31110..ea4d822d55 100644
--- a/Services/WindowServer/ClientConnection.h
+++ b/Services/WindowServer/ClientConnection.h
@@ -89,6 +89,7 @@ private:
     // ^ClientConnection
     virtual void die() override;
     virtual void may_have_become_unresponsive() override;
+    virtual void did_become_responsive() override;
 
     void set_unresponsive(bool);
     void destroy_window(Window&, Vector<i32>& destroyed_window_ids);