public async Task PatchSingleItem(IArchiveFileEntry file, CancellationToken cancellationToken)
{
OnProgress(new ProgressUpdateEventArgs(file, 0, 0));
if (await PatchWriter.Exists(file).ConfigureAwait(false))
{
return;
}
int counter = 0;
Stream fileData = null;
List <Exception> exceptions = new List <Exception>();
do
{
try
{
fileData = await PatchSource.DownloadHashAsync((int)Index.RootIndex.BuildNumber, file.Hash,
cancellationToken);
}
catch (Exception ex)
{
counter++;
exceptions.Add(ex);
}
} while (fileData == null && counter < FileRetryCount);
if (fileData == null)
{
throw new AggregateException(exceptions);
}
counter = 0;
do
{
try
{
await PatchWriter.AppendAsync(fileData, file).ConfigureAwait(false);
break;
}
catch (Exception ex)
{
exceptions.Add(ex);
counter++;
}
} while (counter < FileRetryCount);
if (counter >= FileRetryCount)
{
throw new AggregateException(exceptions);
}
}
