//public static Task<AsyncCollection<TItem>> PeekAtAny(IEnumerable<AsyncCollection<TItem>> collections, CancellationToken token)
//{
//
//}
/// <summary>
/// Peeks at a set of collections and finds the first with data available
/// </summary>
/// <param name="collections">An enumeration of collections to pull from</param>
/// <param name="collection">Receives the collection that has an item available</param>
/// <returns>True if an item is available, otherwise False</returns>
public static bool TryPeekAtAny(IEnumerable <AsyncCollection <T> > collections,
#if !NETSTANDARD2_0
[MaybeNullWhen(false)]
#endif
out AsyncCollection <T> collection)
{
foreach (var SourceCollection in collections)
{
if (SourceCollection.TryPeek())
{
collection = SourceCollection;
return(true);
}
}
collection = null !;
return(false);
}
internal CollectionTakeResult(AsyncCollection <T> source, T item)
{
Source = source;
Item = item;
}
/// <summary>
/// Attempts to take an Item from a set of collections without waiting
/// </summary>
/// <param name="collections">An enumeration of collections to pull from</param>
/// <param name="collection">Receives the collection we took the item from</param>
/// <param name="item">The item that was taken</param>
/// <returns>True if we took from a collection, otherwise False</returns>
public static bool TryTakeFromAny(IEnumerable <AsyncCollection <T> > collections, out AsyncCollection <T> collection,
#if !NETSTANDARD2_0
[MaybeNullWhen(false)]
#endif
out T item)
{
foreach (var SourceCollection in collections)
{
if (SourceCollection.TryTake(out item !))
{
collection = SourceCollection;
return(true);
}
}
collection = null !;
item = default !;
