/// <summary>
/// Performs housekeeping code once a transfer is paused. This implementation
/// closes an open file stream on the temporary file.
/// </summary>
/// <param name="transfer">The paused transfer.</param>
protected override void PauseTransferImpl(TTransfer transfer)
{
if (fileCache.ContainsKey(transfer.TransferId))
{
TempStream tempStream = GetCachedTempData(transfer, null);
tempStream.Pause();
}
}