Retry support.

1 files changed, 8 insertions, 1 deletions

diff --git a/src/core/ext/filters/client_channel/subchannel.h b/src/core/ext/filters/client_channel/subchannel.h
index 7f997d9924..e23aec12df 100644
--- a/src/core/ext/filters/client_channel/subchannel.h
+++ b/src/core/ext/filters/client_channel/subchannel.h
@@ -81,6 +81,7 @@ class ConnectedSubchannel : public RefCountedWithTracing<ConnectedSubchannel> {
     gpr_arena* arena;
     grpc_call_context_element* context;
     grpc_call_combiner* call_combiner;
+    size_t parent_data_size;
   };
 
   explicit ConnectedSubchannel(grpc_channel_stack* channel_stack);
@@ -109,11 +110,17 @@ grpc_subchannel* grpc_subchannel_weak_ref(
     grpc_subchannel* channel GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
 void grpc_subchannel_weak_unref(
     grpc_subchannel* channel GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
-void grpc_subchannel_call_ref(
+grpc_subchannel_call* grpc_subchannel_call_ref(
     grpc_subchannel_call* call GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
 void grpc_subchannel_call_unref(
     grpc_subchannel_call* call GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
 
+/** Returns a pointer to the parent data associated with \a subchannel_call.
+    The data will be of the size specified in \a parent_data_size
+    field of the args passed to \a grpc_connected_subchannel_create_call(). */
+void* grpc_connected_subchannel_call_get_parent_data(
+    grpc_subchannel_call* subchannel_call);
+
 /** poll the current connectivity state of a channel */
 grpc_connectivity_state grpc_subchannel_check_connectivity(
     grpc_subchannel* channel, grpc_error** error);