private static void ActionWorkerDoWork(object sender, DoWorkEventArgs e)
{
const int progressBufferSize = 5;
BackgroundWorker worker = (BackgroundWorker)sender;
WorkerArgs args = (WorkerArgs)e.Argument;
string[] allFiles = Directory.GetFiles(args.BaseDirectory, "*.*",
args.IncludeSubdirectories ? SearchOption.AllDirectories : SearchOption.TopDirectoryOnly);
WorkerProgress[] progressBuffer = new WorkerProgress[progressBufferSize];
int reportBufferCounter = 1;
IEnumerable <Regex> maskPatterns = GenerateMaskPatterns(args.FileMasks);
for (int i = 0; i < allFiles.Length; i++)
{
if (worker.CancellationPending)
{
e.Cancel = true;
break;
}
string path = allFiles[i];
string fileName = Path.GetFileName(path);
if (!SatisfiesMaskPatterns(fileName, maskPatterns))
{
continue;
}
Encoding encoding = TextEncoding.GetFileEncoding(path);
string charset = encoding?.WebName ?? "(Unknown)";
if (args.Action == CurrentAction.Validate)
{
if (args.ValidCharsets.Contains(charset))
{
continue;
}
}
string directoryName = Path.GetDirectoryName(path);
progressBuffer[reportBufferCounter - 1] = new WorkerProgress
{
Charset = charset,
FileName = fileName,
DirectoryName = directoryName
};
reportBufferCounter++;
if (reportBufferCounter > progressBufferSize)
{
reportBufferCounter = 1;
int percentageCompleted = (i * 100) / allFiles.Length;
WorkerProgress[] reportProgress = new WorkerProgress[progressBufferSize];
Array.Copy(progressBuffer, reportProgress, progressBufferSize);
worker.ReportProgress(percentageCompleted, reportProgress);
Array.Clear(progressBuffer, 0, progressBufferSize);
}
}
// Copy remaining results from buffer, if any.
if (reportBufferCounter > 1)
{
reportBufferCounter--;
int percentageCompleted = 100;
WorkerProgress[] reportProgress = new WorkerProgress[reportBufferCounter];
Array.Copy(progressBuffer, reportProgress, reportBufferCounter);
worker.ReportProgress(percentageCompleted, reportProgress);
Array.Clear(progressBuffer, 0, reportBufferCounter);
}
}
