public void Cancel()
{
if (m_swDownloadStartTime != null)
{
m_swDownloadStartTime.Stop();
}
if (m_writeAction != null)
{
m_CancelToken.Cancel();
m_writeAction.Complete();
try
{
m_writeAction.Completion.Wait();
}
catch (Exception e)
{
Log.w(TAG, "Cancel excpetion for file " + FileName + " - " + e.Message);
}
m_writeAction = null;
m_CancelToken.Dispose();
}
if (m_fileStream != null)
{
m_fileStream.Close();
try
{
File.Delete(TempFilePath);
Log.d(TAG, "Cancelled receiving file " + FileName);
}
catch (Exception e)
{
Log.w(TAG, "Error while deleting file " + TempFilePath + " - " + e.Message);
}
}
}
public async Task UploadFile(BbRemoteServer server)
{
m_CancelToken = new CancellationTokenSource();
Status = EStatus.TRANSFERRING;
m_swUploadStartTime = new LowResStopWatch(true);
Log.i(TAG, "Sending " + FileName + " (" + FileSize.ToXByteSize() + ")", true);
try
{
using (m_stream = File.OpenRead(FullPath))
{
long lPosition = 0;
while (lPosition < FileSize && server.Attached)
{
m_CancelToken.Token.ThrowIfCancellationRequested();
BbTcpPacket_SendFileData packet = new BbTcpPacket_SendFileData(server.UsedProtocolVersion, FileID, (ulong)lPosition);
int nToRead = (int)Math.Min(packet.MaxDataSize, FileSize - lPosition);
int nRead = await packet.WriteFileData(m_stream, nToRead, m_CancelToken.Token);
if (nRead != nToRead)
{
throw new IOException("Unexpected read error (read less than expected)");
}
lPosition += nRead;
await server.SendLowPriorityDataPacketAsync(packet, m_CancelToken.Token);
}
}
}
finally
{
m_CancelToken.Dispose();
m_CancelToken = null;
}
Status = EStatus.FINISHED;
m_swUploadStartTime.Stop();
Log.i(TAG, "Finished sending file " + FileName, true);
}