Merge QThread class definitions

We can reuse the main QThread definition for the no-thread
configuration and avoid having to keep them in sync.
Add stub definitions for member functions where needed.

Change-Id: I128db11684a6040d09c4a4ce114f1399cba523f8
Reviewed-by: Lorn Potter <lorn.potter@gmail.com>

src/corelib/thread/qthread.cpp

@@ -765,11 +765,80 @@ QThread::QThread(QObject *parent)
     d->data->thread = this;
 }
 
+QThread::~QThread()
+{
+
+}
+
+void QThread::run()
+{
+
+}
+
+int QThread::exec()
+{
+    return 0;
+}
+
+void QThread::start(Priority priority)
+{
+    Q_D(QThread);
+    Q_UNUSED(priority);
+    d->running = true;
+}
+
+void QThread::terminate()
+{
+
+}
+
+void QThread::quit()
+{
+
+}
+
+bool QThread::wait(unsigned long time)
+{
+    Q_UNUSED(time);
+    return false;
+}
+
+bool QThread::event(QEvent* event)
+{
+    return QObject::event(event);
+}
+
+Qt::HANDLE QThread::currentThreadId() Q_DECL_NOTHROW
+{
+    return Qt::HANDLE(currentThread());
+}
+
 QThread *QThread::currentThread()
 {
     return QThreadData::current()->thread;
 }
 
+int QThread::idealThreadCount() Q_DECL_NOTHROW
+{
+    return 1;
+}
+
+void QThread::yieldCurrentThread()
+{
+
+}
+
+bool QThread::isFinished() const
+{
+    return false;
+}
+
+bool QThread::isRunning() const
+{
+    Q_D(const QThread);
+    return d->running;
+}
+
 // No threads: so we can just use static variables
 static QThreadData *data = 0;
 

src/corelib/thread/qthread.h

@@ -66,7 +66,6 @@ class QThreadData;
 class QThreadPrivate;
 class QAbstractEventDispatcher;
 
-#if QT_CONFIG(thread)
 class Q_CORE_EXPORT QThread : public QObject
 {
     Q_OBJECT
@@ -239,36 +238,6 @@ QThread *QThread::create(Function &&f)
 
 #endif // QT_CONFIG(cxx11_future)
 
-#else // QT_CONFIG(thread)
-
-class Q_CORE_EXPORT QThread : public QObject
-{
-public:
-    static Qt::HANDLE currentThreadId() { return Qt::HANDLE(currentThread()); }
-    static QThread* currentThread();
-
-    static void sleep(unsigned long);
-    static void msleep(unsigned long);
-    static void usleep(unsigned long);
-
-    QAbstractEventDispatcher *eventDispatcher() const;
-    void setEventDispatcher(QAbstractEventDispatcher *eventDispatcher);
-
-protected:
-    QThread(QThreadPrivate &dd, QObject *parent = nullptr);
-
-private:
-    explicit QThread(QObject *parent = nullptr);
-    static QThread *instance;
-
-    friend class QCoreApplication;
-    friend class QThreadData;
-    friend class QAdoptedThread;
-    Q_DECLARE_PRIVATE(QThread)
-};
-
-#endif // QT_CONFIG(thread)
-
 QT_END_NAMESPACE
 
 #endif // QTHREAD_H

src/corelib/thread/qthread_p.h

@@ -222,6 +222,7 @@ public:
 
     mutable QMutex mutex;
     QThreadData *data;
+    bool running = false;
 
     static void setCurrentThread(QThread*) {}
     static QThread *threadForId(int) { return QThread::currentThread(); }