private void FileTransferBackgroundWorkerDoWork(object sender, DoWorkEventArgs e)
{
var fileTransferParameters = e.Argument as FileTransferParameters;
if (fileTransferParameters == null)
{
return;
}
try
{
if (fileTransferParameters.SourceFilePath == fileTransferParameters.TargetFilePath)
{
return;
}
using (var source = fileTransferParameters.SourceDrive.OpenFileStreamForRead(
fileTransferParameters.SourceFilePath))
{
if (source == null)
{
throw new FileLoadException();
}
var sourceLength = source.Length;
using (var target = fileTransferParameters.TargetDrive.OpenFileStreamForWrite(
fileTransferParameters.TargetFilePath))
{
while (source.Position < sourceLength)
{
var bufferSize =
8192 < sourceLength - source.Position
? 8192
: Convert.ToInt32(sourceLength - source.Position);
var buffer = new byte[bufferSize];
source.Read(buffer, 0, bufferSize);
if (fileTransferBackgroundWorker.CancellationPending)
{
source.Close();
target.Close();
_targetDrive.DeleteFile(fileTransferParameters.TargetFilePath);
return;
}
target.Write(buffer, 0, buffer.Length);
if (fileTransferBackgroundWorker.CancellationPending)
{
source.Close();
target.Close();
_targetDrive.DeleteFile(fileTransferParameters.TargetFilePath);
return;
}
var progress = Convert.ToDouble(source.Position) / Convert.ToDouble(sourceLength) * 100.0;
fileTransferBackgroundWorker.ReportProgress(Convert.ToInt32(progress));
}
}
}
if (_moveMode)
{
fileTransferParameters.SourceDrive.DeleteFile(fileTransferParameters.SourceFilePath);
}
}
finally
{
fileTransferParameters.SourceDrive.DisposeFileStream();
fileTransferParameters.TargetDrive.DisposeFileStream();
}
}