/// <summary>
/// Cierra posibles conexiones a disco que puedan quedar abiertos
/// </summary>
public override void close()
{
try
{
FileHandlerStream.Close();
}
catch (ThreadAbortException e)
{
throw e;
}
catch (Exception)
{
}
}
/// <summary>
/// Atiende una solicitud de envío de parte
/// </summary>
public void sendPartMessage( )
{
try
{
long pointer = currentPart * PartSize;
if (pointer < FileHandlerStream.Length)
{
int dataSize;
if (currentPart == PartsNumber - 1)
{
dataSize = (int)(FileHandlerStream.Length - PartSize * (PartsNumber - 1));
}
else
{
dataSize = PartSize;
}
byte[] fileData = new byte[dataSize];
FileHandlerStream.Seek(pointer, SeekOrigin.Begin);
int n = FileHandlerStream.Read(fileData, 0, fileData.Length);
while (n < fileData.Length && n != 0)
{
int m = FileHandlerStream.Read(fileData, n, fileData.Length - n);
if (m == 0)
{
break;
}
else
{
n += m;
}
}
sendMessage(new FilePartMessage(RemoteNetUser, Id, currentPart, fileData));
currentPart++;
this.State = FileMessageHandlerState.ACTIVE;
}
}
catch (ThreadAbortException e)
{
throw e;
}
catch (Exception e)
{
sendMessage(new FileErrorMessage(RemoteNetUser, Id));
this.State = FileMessageHandlerState.ERROR;
this.Error = e.Message;
close();
}
}
/// <summary>
/// Atiende un mensaje que contiene una parte del archivo y escribe dicha parte a disco
/// </summary>
/// <param name="message">El mensaje con la parte del archivo</param>
private void receivePartMessage(FilePartMessage message)
{
lock (thisLock)
{
try
{
long pointer = message.PartId * PartSize;
if (pointer < FileInformation.Size && parts[message.PartId].Status == FilePartStatus.NOTRECEIVED)
{
FileHandlerStream.Seek(pointer, SeekOrigin.Begin);
FileHandlerStream.Write(message.FilePart, 0, message.FilePart.Length);
parts[message.PartId].Status = FilePartStatus.RECEIVED;
partsLoaded++;
}
bool completed = true;
for (long i = 0; i < parts.Length; i++)
{
if (parts[i].Status == FilePartStatus.NOTRECEIVED)
{
completed = false;
break;
}
}
if (completed)
{
sendMessage(new FileCompleteMessage(RemoteNetUser, Id));
this.State = FileMessageHandlerState.COMPLETED;
}
else
{
State = FileMessageHandlerState.ACTIVE;
}
}
catch (ThreadAbortException e)
{
throw e;
}
catch (Exception e)
{
sendMessage(new FileErrorMessage(RemoteNetUser, Id));
this.State = FileMessageHandlerState.ERROR;
this.Error = e.Message;
close();
}
}
}
