diff --git a/worker.cpp b/worker.cpp
new file mode 100644
index 0000000..73c0c16
--- /dev/null
+++ b/worker.cpp
@@ -0,0 +1,66 @@
+#include "worker.h"
+#include "update.h"
+
+#include <QCoreApplication>
+#include <QApplication>
+#include <QDebug>
+#include <QTimer>
+#include <QFileInfo>
+#include <QDir>
+#include <QThread>
+
+#include "message_handler.h"
+#include "plugins/interfaces.h"
+
+
+Worker::Worker(QString update_ctrl_file, QString workingDir)
+      : m_update_ctrl_file(update_ctrl_file)
+      , m_workingDir(workingDir)
+      , m_workerThread("workerThread") {
+
+    this->moveToThread(&m_workerThread);
+    m_workerThread.start();
+    QThread::usleep(100000);
+
+    int cnt = 0;
+    while (!m_workerThread.isRunning()) {
+        if (++cnt > 5) {
+            qCritical() << "starting worker thread FAILED";
+            return;
+        }
+        QThread::sleep(1);
+    }
+
+    connect(this, SIGNAL(workNow()), this, SLOT(work()), Qt::QueuedConnection);
+    connect(&m_timer, SIGNAL(timeout()), this, SLOT(update()));
+    m_timer.setSingleShot(true);
+    m_timer.start(1000);
+}
+
+Worker::~Worker() {
+    int cnt = 0;
+    m_workerThread.quit();
+    while (!m_workerThread.isFinished()) {
+        if (!m_workerThread.wait(1000)) {
+            if (++cnt > 5) {
+                qCritical() << "stopping worker thread FAILED";
+                return;
+            }
+        }
+    }
+}
+
+void Worker::update() {
+    qCritical() << __func__ << ":" << __LINE__;
+    emit workNow();
+}
+
+void Worker::work() {
+   qCritical() << __func__ << ":" << __LINE__;
+   //Update m_update(m_update_ctrl_file, m_workingDir);
+   QThread::sleep(3);
+   //if (m_update.doUpdate()) {
+   //}
+   m_workerThread.quit();
+   QApplication::quit();
+}
diff --git a/worker.h b/worker.h
new file mode 100644
index 0000000..ced641e
--- /dev/null
+++ b/worker.h
@@ -0,0 +1,30 @@
+#ifndef WORKER_H_INCLUDED
+#define WORKER_H_INCLUDED
+
+#include <QObject>
+#include <QString>
+#include <QTimer>
+
+#include "worker_thread.h"
+
+class Worker : public QObject {
+    Q_OBJECT
+
+    QString m_update_ctrl_file;
+    QString m_workingDir;
+    WorkerThread m_workerThread;
+    QTimer m_timer;
+public:
+    explicit Worker(QString update_ctrl_file, QString workingDir);
+    ~Worker();
+    void quit() { return m_workerThread.quit(); }
+
+signals:
+    void workNow();
+
+public slots:
+    void work();
+    void update();
+};
+
+#endif // WORKER_H_INCLUDED
diff --git a/worker_thread.cpp b/worker_thread.cpp
new file mode 100644
index 0000000..b36e8a8
--- /dev/null
+++ b/worker_thread.cpp
@@ -0,0 +1,13 @@
+#include "worker_thread.h"
+
+WorkerThread::WorkerThread(QString const &name,
+                           QObject *parent) : QThread(parent) {
+    this->setObjectName(name);
+}
+
+WorkerThread::~WorkerThread() {
+}
+
+//void WorkerThread::run() {
+//
+//}
diff --git a/worker_thread.h b/worker_thread.h
new file mode 100644
index 0000000..b15a509
--- /dev/null
+++ b/worker_thread.h
@@ -0,0 +1,17 @@
+#ifndef WORKER_THREAD_H_INCLUDED
+#define WORKER_THREAD_H_INCLUDED
+
+#include <QThread>
+#include <QString>
+
+class WorkerThread : public QThread {
+    Q_OBJECT
+public:
+    WorkerThread(QString const &name, QObject *parent = nullptr);
+    virtual ~WorkerThread();
+
+protected:
+    // virtual void run();
+};
+
+#endif // WORKER_THREAD_H_INCLUDED