public void TransformAsync(Stream source, Stream detination, Func <Chunk, Chunk> clientCall)
{
if (source == null)
{
throw new System.ArgumentNullException(nameof(source));
}
if (detination == null)
{
throw new System.ArgumentNullException(nameof(detination));
}
if (clientCall == null)
{
throw new System.ArgumentNullException(nameof(clientCall));
}
LazyRead lazyRead = new LazyRead(source, this._wordLength);
var transformedBytes = this.LazzyTransform(lazyRead, clientCall);
var buffered = new BufferedEnumerable <Chunk>(transformedBytes, 10);
var orederedBytes = buffered.Values();
foreach (var chunk in orederedBytes)
{
detination.Write(chunk.Data, 0, chunk.Length);
}
}
private IEnumerable <Task <Chunk> > LazzyTransform(LazyRead read, Func <Chunk, Chunk> clientCall)
{
foreach (var chunk in read.Read())
{
var task = new Task <Chunk>(() => {
return(clientCall.Invoke(chunk));
});
task.Start();
yield return(task);
}
}