private void OnStreamDeleted(InMemoryEventStream <T> stream)
{
InMemoryEventStream <T> removed;
_streams.TryRemove(stream.Id, out removed);
Debug.Assert(ReferenceEquals(removed, stream));
stream.Deleted -= OnStreamDeleted;
}
/// <inheritdoc/>
public async Task <IEventStream <T> > AddAsync(EventStreamId id)
{
Requires.NotDefault(id, nameof(id));
var stream = new InMemoryEventStream <T>(id);
if (!_streams.TryAdd(id, stream))
{
throw new EventStreamAlreadyExistsException(id);
}
stream.Deleted += OnStreamDeleted;
return(stream);
}
