/// <summary>
/// cancel a background task - or prevent a task from running
/// </summary>
public void Cancel()
{
lock (_lock)
{
if (_client != null)
{
_client.CancelAsync();
}
else
{
// probably an unstarted task or a task that has completed
_complete = true;
TaskComplete.Set();
}
}
}
void ClientDownloadFileCompleted(object sender, AsyncCompletedEventArgs e)
{
StatusUpdateEventArgs args = null;
lock (_lock)
{
var syncItem = e.UserState as SyncItem;
if (syncItem == null)
{
args = new StatusUpdateEventArgs(StatusUpdateLevel.Error, "Missing token from download completed", false, null);
}
else if (e.Cancelled)
{
args = new StatusUpdateEventArgs(StatusUpdateLevel.Status, string.Format(CultureInfo.InvariantCulture, "{0} Cancelled", syncItem.EpisodeTitle), false, syncItem);
}
else if (e.Error != null && e.Error.InnerException != null)
{
args = new StatusUpdateEventArgs(StatusUpdateLevel.Error, string.Format(CultureInfo.InvariantCulture, "Error in: {0}", syncItem.EpisodeTitle), e.Error.InnerException, false, syncItem);
}
else if (e.Error != null)
{
args = new StatusUpdateEventArgs(StatusUpdateLevel.Error, string.Format(CultureInfo.InvariantCulture, "Error in: {0}", syncItem.EpisodeTitle), e.Error, false, syncItem);
}
else
{
args = new StatusUpdateEventArgs(StatusUpdateLevel.Status, string.Format(CultureInfo.InvariantCulture, "{0} Completed", syncItem.EpisodeTitle), true, syncItem);
_fileUtilities.FileRename(GetDownloadFilename(), _syncItem.DestinationPath, true);
RecordHighTideMark(syncItem);
ExecutePostDownloadCommand();
}
OnStatusUpdate(args);
_client.Dispose();
_client = null;
_complete = true;
_counterFactory.CreateAverageCounter(Constants.PodcastUtilitiesCommonCounterCategory,
Constants.AverageTimeToDownload,
Constants.NumberOfDownloads).RegisterTime(_stopWatch);
_counterFactory.CreateAverageCounter(Constants.PodcastUtilitiesCommonCounterCategory,
Constants.AverageMBDownload,
Constants.SizeOfDownloads).RegisterValue(ConvertBytesToMB(_bytesDownloaded));
TaskComplete.Set();
}
}
public void ForceComplete()
{
_complete = true;
TaskComplete.Set();
}