private bool _ResumeFromDisk()
{
if (!File.Exists(DiskFilePath))
{
throw new IOException("there's no data file is found in " + DiskFilePath);
}
Stream stream = null;
try
{
stream = new FileStream(DiskFilePath, FileMode.Open, FileAccess.Read, FileShare.None);
BinaryFormatter formatter = new BinaryFormatter();
AddrGraph = (Graph)formatter.Deserialize(stream);
stream.Close();
}
catch (System.Exception ex)
{
if (stream != null)
stream.Close();
throw new Exception("Deserialization failed! Message: " + ex.Message);
}
if (AddrGraph != null && AddrGraph.NodeTable != null && AddrGraph.root != null)
{
return true;
}
else
{
return false;
}
}
