private static void CopyTemplate(string sourceFileName, string destFileName, Func <bool> shouldCancel, Action <int> delay, Action <BackgroundCopyJobState, byte> report, Action <BackgroundCopyFileCollection> add)
{
var type = (Uri.TryCreate(destFileName, UriKind.Absolute, out var uri) && !uri.IsFile) ? BackgroundCopyJobType.Upload : BackgroundCopyJobType.Download;
using (var job = Jobs.Add("Temp" + Guid.NewGuid().ToString(), "", type))
{
job.DisableNotifications = true;
add(job.Files);
BackgroundCopyJobState state = BackgroundCopyJobState.Connecting;
job.Resume();
do
{
switch (state = job.State)
{
case BackgroundCopyJobState.Queued:
case BackgroundCopyJobState.Connecting:
case BackgroundCopyJobState.Transferring:
case BackgroundCopyJobState.Suspended:
ReportProgress();
break;
case BackgroundCopyJobState.Error:
case BackgroundCopyJobState.TransientError:
throw job.LastError;
case BackgroundCopyJobState.Transferred:
ReportProgress();
job.Complete();
return;
case BackgroundCopyJobState.Acknowledged:
case BackgroundCopyJobState.Cancelled:
return;
default:
throw new InvalidOperationException("Unknown job state");
}
if (shouldCancel())
{
job.Cancel();
break;
}
delay(1000);
void ReportProgress()
{
report?.Invoke(state, job.Progress.PercentComplete);
}
} while (state != BackgroundCopyJobState.Transferred && state != BackgroundCopyJobState.Error && state != BackgroundCopyJobState.TransientError);
}
}
private void CheckNotifier()
{
if (m_notifier == null)
{
this.NotifyFlags = 0;
m_notifier = new Notifier(this);
}
BackgroundCopyJobState st = this.State;
if (st != BackgroundCopyJobState.Acknowledged && st != BackgroundCopyJobState.Cancelled)
{
m_ijob.SetNotifyInterface(m_notifier);
}
}
private void HandleCOMException(COMException cex)
{
BackgroundCopyJobState state = BackgroundCopyJob.GetState(m_ijob);
if (state == BackgroundCopyJobState.Error ||
state == BackgroundCopyJobState.TransientError)
{
Interop.IBackgroundCopyError pErr;
m_ijob.GetError(out pErr);
throw new BackgroundCopyException(pErr);
}
else
{
throw new BackgroundCopyException(cex);
}
}
public static TransferStatus ToTranferStatus(this BackgroundCopyJobState state) => (TransferStatus)state;
