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#ifndef QT3D_QTHREADPOOLER_H
#define QT3D_QTHREADPOOLER_H

#include "task_p.h"
#include "dependencyhandler_p.h"

#include <QtCore/QObject>
#include <QtCore/QWaitCondition>
#include <QtCore/QSharedPointer>

QT_BEGIN_NAMESPACE

namespace Qt3D {

class QThreadPoolerPrivate;

class QThreadPooler : public QObject
{
    Q_OBJECT

public:
    explicit QThreadPooler(QObject *parent = 0);
    ~QThreadPooler();

    int maxThreadCount() const;
    void setMaxThreadCount(int threadCount);
    QSharedPointer<TaskInterface> nextTask();
    void enqueueTask(const QSharedPointer<TaskInterface> &task);
    void flush();
    void startRunning();
    void stopRunning();
    void setDependencyHandler(DependencyHandler *handler);

signals:
    void shuttingDown();

private:
    void manageThreads();
    bool hasDependencies(const QSharedPointer<TaskInterface> &task);
    bool isIdling();

private:
    Q_DECLARE_PRIVATE(QThreadPooler)
};

} // namespace Qt3D

QT_END_NAMESPACE

#endif // QT3D_QTHREADPOOLER_H