public static IWriteFuture NewNotWrittenFuture(IoSession session, Exception cause)
{
DefaultWriteFuture unwrittenFuture = new DefaultWriteFuture(session);
unwrittenFuture.Exception = cause;
return unwrittenFuture;
}
public static IWriteFuture NewWrittenFuture(IoSession session)
{
DefaultWriteFuture writtenFuture = new DefaultWriteFuture(session);
writtenFuture.Written = true;
return writtenFuture;
}
public override IWriteFuture Flush()
{
IQueue<Object> bufferQueue = MessageQueue;
IWriteFuture future = null;
while (!bufferQueue.IsEmpty)
{
Object encodedMessage = bufferQueue.Dequeue();
if (encodedMessage == null)
break;
// Flush only when the buffer has remaining.
IoBuffer buf = encodedMessage as IoBuffer;
if (buf == null || buf.HasRemaining)
{
future = new DefaultWriteFuture(_session);
_nextFilter.FilterWrite(_session, new EncodedWriteRequest(encodedMessage, future, _destination));
}
}
if (future == null)
{
// Creates an empty writeRequest containing the destination
IWriteRequest writeRequest = new DefaultWriteRequest(DefaultWriteRequest.EmptyMessage, null, _destination);
future = DefaultWriteFuture.NewNotWrittenFuture(_session, new NothingWrittenException(writeRequest));
}
return future;
}