Function loadBalance

fdbclient/NativeAPI.actor.cpp:114–134

template <class Interface, class Request, bool P>
Future<REPLY_TYPE(Request)> loadBalance(
    DatabaseContext* ctx,
    const Reference<LocationInfo> alternatives,
    RequestStream<Request, P> Interface::*channel,
    const Request& request = Request(),
    TaskPriority taskID = TaskPriority::DefaultPromiseEndpoint,
    AtMostOnce atMostOnce =
        AtMostOnce::False, // if true, throws request_maybe_delivered() instead of retrying automatically
    QueueModel* model = nullptr) {
	if (alternatives->hasCaches) {
		return loadBalance(alternatives->locations(), channel, request, taskID, atMostOnce, model);
	}
	return fmap(
	    [ctx](auto const& res) {
		    if (res.cached) {
			    ctx->updateCache.trigger();
		    }
		    return res;
	    },
	    loadBalance(alternatives->locations(), channel, request, taskID, atMostOnce, model));
}
} // namespace

FDB_BOOLEAN_PARAM(TransactionRecordLogInfo);