shared: Begin ParallelDirScanner

shared/paralleldirscanner.h

@@ -0,0 +1,48 @@
+#ifndef PARALLELDIRSCANNER_H
+#define PARALLELDIRSCANNER_H
+
+#include <QObject>
+#include <QMutex>
+#include <atomic>
+#include <QThreadPool>
+#include "concurrentqueue.h"
+class ParallelDirScanner : public QObject
+{
+	Q_OBJECT
+  protected:
+	QStringList ignorePatterns;
+	QThreadPool threadpool;
+
+	unsigned int finishedWorkers = 0;
+	unsigned int processedPaths = 0;
+
+	std::atomic<bool> stopToken;
+
+	bool running = false;
+
+	QVector<QString> paths;
+	ConcurrentQueue<QString> targetPathsQueue;
+	ConcurrentQueue<QString> resultPathsQueue;
+	unsigned int getThreadsNum() const;
+
+  public:
+	ParallelDirScanner();
+
+	ConcurrentQueue<QString> &getResults();
+	void setIgnorePatterns(QStringList patterns);
+	void setPaths(QVector<QString> paths);
+	void scan();
+	bool isRunning();
+
+	unsigned int pathCount();
+
+  signals:
+	void scanComplete();
+	void progress(int, int);
+  public slots:
+	void cancel();
+	void handleWorkersProgress(unsigned int progress);
+	void handleWorkersFinish();
+};
+
+#endif // PARALLELDIRSCANNER_H