void Discard(Exception cause = null)
{
for (;;)
{
PendingWrite current = this.currentWrite;
if (this.currentWrite == null)
{
current = this.queue.Count > 0 ? this.queue.Dequeue() : null;
}
else
{
this.currentWrite = null;
}
if (current == null)
{
break;
}
object message = current.Message;
var chunks = message as IChunkedInput <T>;
if (chunks != null)
{
try
{
if (!chunks.IsEndOfInput)
{
if (cause == null)
{
cause = new ClosedChannelException();
}
current.Fail(cause);
}
else
{
current.Success();
}
}
catch (Exception exception)
{
current.Fail(exception);
Logger.Warn($"{StringUtil.SimpleClassName(typeof(ChunkedWriteHandler<T>))}.IsEndOfInput failed", exception);
}
finally
{
CloseInput(chunks);
}
}
else
{
if (cause == null)
{
cause = new ClosedChannelException();
}
current.Fail(cause);
}
}
}
private static void HandleEndOfInputFuture(Task task, PendingWrite currentWrite)
{
if (task.IsSuccess())
{
var chunks = (IChunkedInput <T>)currentWrite.Message;
// read state of the input in local variables before closing it
long inputProgress = chunks.Progress;
long inputLength = chunks.Length;
CloseInput(chunks);
currentWrite.Progress(inputProgress, inputLength);
currentWrite.Success(inputLength);
}
else
{
CloseInput((IChunkedInput <T>)currentWrite.Message);
currentWrite.Fail(task.Exception);
}
}