private static ScheduledFunction <T> Add <T>(
bool isFunction,
[NotNull] ScheduledFunction <T> .SchedulableDueCancellableFunctionAsync function,
[NotNull] ISchedule schedule,
int maximumHistory = -1,
Duration maximumDuration = default(Duration))
{
if (function == null)
{
throw new ArgumentNullException("function");
}
if (schedule == null)
{
throw new ArgumentNullException("schedule");
}
ScheduledFunction <T> sf = new ScheduledFunction <T>(
isFunction,
function,
schedule,
maximumHistory < 1 ? _defaultMaximumHistory : maximumHistory,
maximumDuration <= Duration.Zero ? _defaultMaximumDuration : maximumDuration);
// Update actions dictionary
_actions.AddOrUpdate(sf.ID, sf, (i, a) => sf);
// Calculate next due
sf.RecalculateNextDue(Instant.MinValue);
return(sf);
}