private void OnUpdate(DoWorkEventArgs e)
{
// Clean:
foreach (string file in _values.Keys)
{
if (!File.Exists(file))
{
_values.Remove(file);
}
}
// Indexing
int i = 0;
FileInfo[] files = _enumerator.ToArray();
foreach (FileInfo file in _enumerator)
{
if (CancellationPending)
{
e.Cancel = true;
return;
}
i++;
try
{
if (file.Exists)
{
var keyWrapper = new FileKeyWrapper(file.FullName, _keyGenerator);
if (_values.ContainsKey(file.FullName))
{
FileKeyWrapper cached = _values[file.FullName];
if (cached.Size != file.Length || cached.LastWriteUtc != file.LastWriteTimeUtc)
{
_values[file.FullName] = keyWrapper;
ReportProgress((i * 100) / files.Length, keyWrapper.Hash);
}
}
else
{
_values.Add(file.FullName, keyWrapper);
ReportProgress((i * 100) / files.Length, keyWrapper.Hash);
}
}
}
catch (FileNotFoundException)
{
if (_values.ContainsKey(file.FullName))
{
_values.Remove(file.FullName);
}
}
}
}
private static bool IsValid(FileKeyWrapper key, string path)
{
if (File.Exists(path))
{
if (key.LastWriteUtc == File.GetLastWriteTimeUtc(path))
{
return(true);
}
}
return(false);
}
private bool Equals(FileKeyWrapper other)
{
return(Equals(Size, other.Size) && string.Equals(Hash, other.Hash));
}
