private async Task ReceiveFileAsync(IProgress <double> progressIndicator, CancellationToken token)
{
await Task.Run(async() => // async put so that the exception is thrown to the caller
{
try
{
token.ThrowIfCancellationRequested();
updateEstimation = 1;
oldValue = 0;
timestamp = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds(); // initializing the timestamp at the beginning of the transfer
while (this.sft.FileLength > 0)
{
client.Receive(this.sft);
token.ThrowIfCancellationRequested();
//Thread.Sleep(500); // HACK: Waiting for testing purposes
progressIndicator.Report(100 - ((float)this.sft.FileLength / originalLength * 100));
}
client.EndReceiving(this.sft);
}
catch (OperationCanceledException)
{
client.CancelReceiving(this.sft);
throw;
}
catch (Exception e)
{
if (e is SocketException || e is IOException)
{
client.CancelReceiving(this.sft);
MessageBox.Show("There was an error in receiving the file.", "Mthis.sft", MessageBoxButton.OK,
MessageBoxImage.Stop, MessageBoxResult.OK, MessageBoxOptions.DefaultDesktopOnly);
throw new OperationCanceledException();
}
throw;
}
}, token);
}
