diff options
Diffstat (limited to 'src/core/ext/filters/client_channel/lb_policy.h')
| -rw-r--r-- | src/core/ext/filters/client_channel/lb_policy.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/core/ext/filters/client_channel/lb_policy.h b/src/core/ext/filters/client_channel/lb_policy.h index 21f80b7b94..3940f138e6 100644 --- a/src/core/ext/filters/client_channel/lb_policy.h +++ b/src/core/ext/filters/client_channel/lb_policy.h @@ -95,7 +95,9 @@ class LoadBalancingPolicy /// Updates the policy with a new set of \a args from the resolver. /// Note that the LB policy gets the set of addresses from the /// GRPC_ARG_LB_ADDRESSES channel arg. - virtual void UpdateLocked(const grpc_channel_args& args) GRPC_ABSTRACT; + /// Returns true if the update caused the number of backends to go from + /// zero to non-zero, or non-zero to zero. + virtual bool UpdateLocked(const grpc_channel_args& args) GRPC_ABSTRACT; /// Finds an appropriate subchannel for a call, based on data in \a pick. /// \a pick must remain alive until the pick is complete. |