Nuget: Axion.ConcurrentHashSet
This package is a modified implementation of .NET's ConcurrentDictionary with a reduced memory footprint because it does not store any keys. It is similar to the i3arnon's ConcurrentHashSet, except that it includes more functionality. Some additions include TryUpdate, TryAdd, TryGetValue, GetOrAdd, and AddOrUpdate. It also implements the non-generic version of ICollection. This was done for performance reasons and to allow the user to inspect modified and stored values in the collection.
bool Add(T value);
bool Remove(T value);
bool TryAdd(T value, out T currentValue);
bool TryRemove(T value, out T oldValue);
bool TryUpdate(T value);
bool TryGetValue(T value, out T currentValue);
T GetOrAdd(T value);
void AddOrUpdate(T value);The original source code comes from ConcurrentDictionary.
Their software is under the following license: MICROSOFT REFERENCE SOURCE LICENSE (MS-RSL) license
This license suggests that the code is free for "reference use only". I do not hold any rights to this software, nor do I intend to make any royalties from the distribution of it. If you distribute this software then you do so at your own risk. If I hold any copyright to this software then it is under the MIT license.