static bool maybe_add_optional_filter(grpc_exec_ctx *exec_ctx, grpc_channel_stack_builder *builder, void *arg) { if (!is_building_http_like_transport(builder)) return true; optional_filter *filtarg = arg; const grpc_channel_args *channel_args = grpc_channel_stack_builder_get_channel_arguments(builder); bool enable = grpc_channel_arg_get_bool( grpc_channel_args_find(channel_args, filtarg->control_channel_arg), !grpc_channel_args_want_minimal_stack(channel_args)); return enable ? grpc_channel_stack_builder_prepend_filter( builder, filtarg->filter, NULL, NULL) : true; }
bool grpc_channel_args_want_minimal_stack(const grpc_channel_args *args) { return grpc_channel_arg_get_bool( grpc_channel_args_find(args, GRPC_ARG_MINIMAL_STACK), false); }