public static IQueueSource <T> OrderedParallelWhere <T>(this IQueueSource <T> queue, ParallelWorker parallelWorker, Func <T, Task <bool> > predicate, int?capacity = null)
{
Func <Tuple <int, T>, Task <Tuple <int, T, bool> > > func2 = async pair => new Tuple <int, T, bool>(pair.Item1, pair.Item2, await predicate(pair.Item2));
return(queue.Indexed().ParallelSelect(parallelWorker, func2, capacity).Reorder(pair => pair.Item1, 0, capacity).Where(i => Task.FromResult(i.Item3), capacity)
.SynchronousSelect(i => i.Item2));
}
public static IQueueSource <U> OrderedParallelSelect <T, U>(this IQueueSource <T> queue, ParallelWorker parallelWorker, Func <T, Task <U> > func, int?capacity = null)
{
Func <Tuple <int, T>, Task <Tuple <int, U> > > func2 = async pair => new Tuple <int, U>(pair.Item1, await func(pair.Item2));
return(queue.Indexed().ParallelSelect(parallelWorker, func2, capacity).Reorder(pair => pair.Item1, 0, capacity).SynchronousSelect(pair => pair.Item2));
}