NServiceBus.Recoverability.GetDelayedRetryConfig C# (CSharp) Method

        static DelayedConfig GetDelayedRetryConfig(ReadOnlySettings settings, bool transactionsOn)
        {
            if (!transactionsOn)
            {
                Logger.Warn("Delayed Retries will be disabled. Delayed retries are not supported when running with TransportTransactionMode.None. Failed messages will be moved to the error queue instead.");
                //Transactions must be enabled since Delayed Retries requires the transport to be able to rollback
                return new DelayedConfig(0, TimeSpan.Zero);
            }

            var numberOfRetries = settings.Get<int>(NumberOfDelayedRetries);
            var timeIncrease = settings.Get<TimeSpan>(DelayedRetriesTimeIncrease);

            var retriesConfig = settings.GetConfigSection<SecondLevelRetriesConfig>();
            if (retriesConfig != null)
            {
                numberOfRetries = retriesConfig.Enabled ? retriesConfig.NumberOfRetries : 0;
                timeIncrease = retriesConfig.TimeIncrease;
            }

            return new DelayedConfig(numberOfRetries, timeIncrease);
        }