public IAsyncEnumerator <TResult> GetAsyncEnumerator()
{
var en = new ConcatMapEagerEnumerator(_source.GetAsyncEnumerator(), _mapper, _maxConcurrency, _prefetch);
en.MoveNextSource();
return(en);
}
public IAsyncEnumerator <TResult> GetAsyncEnumerator(CancellationToken cancellationToken)
{
var sourceCTS = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken);
var en = new ConcatMapEagerEnumerator(_source.GetAsyncEnumerator(sourceCTS.Token), _mapper, _maxConcurrency, _prefetch,
sourceCTS);
en.MoveNextSource();
return(en);
}
public InnerHandler(IAsyncEnumerator <TResult> source, ConcatMapEagerEnumerator parent)
{
_source = source;
_parent = parent;
Queue = new ConcurrentQueue <TResult>();
var p = parent._prefetch;
_outstanding = p;
_limit = p - (p >> 2);
}
