1 files changed, 15 insertions, 2 deletions
diff --git a/src/core/ext/filters/client_channel/client_channel_channelz.h b/src/core/ext/filters/client_channel/client_channel_channelz.h
index cf3ef7b6f2..6f27b5c8b7 100644
--- a/src/core/ext/filters/client_channel/client_channel_channelz.h
+++ b/src/core/ext/filters/client_channel/client_channel_channelz.h
@@ -22,9 +22,17 @@
 #include <grpc/support/port_platform.h>
 
 #include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/channel/channel_stack.h"
 #include "src/core/lib/channel/channelz.h"
+#include "src/core/lib/gprpp/inlined_vector.h"
 
 namespace grpc_core {
+
+// TODO(ncteisen), this only contains the uuids of the children for now,
+// since that is all that is strictly needed. In a future enhancement we will
+// add human readable names as in the channelz.proto
+typedef InlinedVector<intptr_t, 10> ChildRefsList;
+
 namespace channelz {
 
 // Subtype of ChannelNode that overrides and provides client_channel specific
@@ -32,12 +40,16 @@ namespace channelz {
 class ClientChannelNode : public ChannelNode {
  public:
   static RefCountedPtr<ChannelNode> MakeClientChannelNode(
-      grpc_channel* channel, size_t channel_tracer_max_nodes);
+      grpc_channel* channel, size_t channel_tracer_max_nodes,
+      bool is_top_level_channel);
 
   // Override this functionality since client_channels have a notion of
   // channel connectivity.
   void PopulateConnectivityState(grpc_json* json) override;
 
+  // Override this functionality since client_channels have subchannels
+  void PopulateChildRefs(grpc_json* json) override;
+
   // Helper to create a channel arg to ensure this type of ChannelNode is
   // created.
   static grpc_arg CreateChannelArg();
@@ -45,7 +57,8 @@ class ClientChannelNode : public ChannelNode {
  protected:
   GPRC_ALLOW_CLASS_TO_USE_NON_PUBLIC_DELETE
   GPRC_ALLOW_CLASS_TO_USE_NON_PUBLIC_NEW
-  ClientChannelNode(grpc_channel* channel, size_t channel_tracer_max_nodes);
+  ClientChannelNode(grpc_channel* channel, size_t channel_tracer_max_nodes,
+                    bool is_top_level_channel);
   virtual ~ClientChannelNode() {}
 
  private: