QFuture based asynchronous Task implementation.

Change-Id: I538a2fc40b67d6d27f120afe3705065ab98f8f99
Reviewed-by: Tim Jenssen <tim.jenssen@digia.com>

1 files changed, 435 insertions, 0 deletions

diff --git a/src/libs/installer/runextensions.h b/src/libs/installer/runextensions.h
new file mode 100644
index 000000000..e4c7fb2be
--- /dev/null
+++ b/src/libs/installer/runextensions.h
@@ -0,0 +1,435 @@
+/**************************************************************************
+**
+** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt Installer Framework.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+**************************************************************************/
+
+#ifndef QTCONCURRENT_RUNEX_H
+#define QTCONCURRENT_RUNEX_H
+
+#include <qrunnable.h>
+#include <qfutureinterface.h>
+#include <qthreadpool.h>
+
+QT_BEGIN_NAMESPACE
+
+namespace QtConcurrent {
+
+template <typename T,  typename FunctionPointer>
+class StoredInterfaceFunctionCall0 : public QRunnable
+{
+public:
+    StoredInterfaceFunctionCall0(void (fn)(QFutureInterface<T> &))
+    : fn(fn) { }
+
+    QFuture<T> start()
+    {
+        futureInterface.reportStarted();
+        QFuture<T> future = futureInterface.future();
+        QThreadPool::globalInstance()->start(this);
+        return future;
+    }
+
+    void run()
+    {
+        fn(futureInterface);
+        futureInterface.reportFinished();
+    }
+private:
+    QFutureInterface<T> futureInterface;
+    FunctionPointer fn;
+
+};
+template <typename T,  typename FunctionPointer, typename Class>
+class StoredInterfaceMemberFunctionCall0 : public QRunnable
+{
+public:
+    StoredInterfaceMemberFunctionCall0(void (Class::*fn)(QFutureInterface<T> &), Class *object)
+    : fn(fn), object(object) { }
+
+    QFuture<T> start()
+    {
+        futureInterface.reportStarted();
+        QFuture<T> future = futureInterface.future();
+        QThreadPool::globalInstance()->start(this);
+        return future;
+    }
+
+    void run()
+    {
+        (object->*fn)(futureInterface);
+        futureInterface.reportFinished();
+    }
+private:
+    QFutureInterface<T> futureInterface;
+    FunctionPointer fn;
+    Class *object;
+
+};
+
+template <typename T,  typename FunctionPointer, typename Arg1>
+class StoredInterfaceFunctionCall1 : public QRunnable
+{
+public:
+    StoredInterfaceFunctionCall1(void (fn)(QFutureInterface<T> &, Arg1), const Arg1 &arg1)
+    : fn(fn), arg1(arg1) { }
+
+    QFuture<T> start()
+    {
+        futureInterface.reportStarted();
+        QFuture<T> future = futureInterface.future();
+        QThreadPool::globalInstance()->start(this);
+        return future;
+    }
+
+    void run()
+    {
+        fn(futureInterface, arg1);
+        futureInterface.reportFinished();
+    }
+private:
+    QFutureInterface<T> futureInterface;
+    FunctionPointer fn;
+    Arg1 arg1;
+};
+template <typename T,  typename FunctionPointer, typename Class, typename Arg1>
+class StoredInterfaceMemberFunctionCall1 : public QRunnable
+{
+public:
+    StoredInterfaceMemberFunctionCall1(void (Class::*fn)(QFutureInterface<T> &, Arg1), Class *object, const Arg1 &arg1)
+    : fn(fn), object(object), arg1(arg1) { }
+
+    QFuture<T> start()
+    {
+        futureInterface.reportStarted();
+        QFuture<T> future = futureInterface.future();
+        QThreadPool::globalInstance()->start(this);
+        return future;
+    }
+
+    void run()
+    {
+        (object->*fn)(futureInterface, arg1);
+        futureInterface.reportFinished();
+    }
+private:
+    QFutureInterface<T> futureInterface;
+    FunctionPointer fn;
+    Class *object;
+    Arg1 arg1;
+};
+
+template <typename T,  typename FunctionPointer, typename Arg1, typename Arg2>
+class StoredInterfaceFunctionCall2 : public QRunnable
+{
+public:
+    StoredInterfaceFunctionCall2(void (fn)(QFutureInterface<T> &, Arg1, Arg2), const Arg1 &arg1, const Arg2 &arg2)
+    : fn(fn), arg1(arg1), arg2(arg2) { }
+
+    QFuture<T> start()
+    {
+        futureInterface.reportStarted();
+        QFuture<T> future = futureInterface.future();
+        QThreadPool::globalInstance()->start(this);
+        return future;
+    }
+
+    void run()
+    {
+        fn(futureInterface, arg1, arg2);
+        futureInterface.reportFinished();
+    }
+private:
+    QFutureInterface<T> futureInterface;
+    FunctionPointer fn;
+    Arg1 arg1; Arg2 arg2;
+};
+template <typename T,  typename FunctionPointer, typename Class, typename Arg1, typename Arg2>
+class StoredInterfaceMemberFunctionCall2 : public QRunnable
+{
+public:
+    StoredInterfaceMemberFunctionCall2(void (Class::*fn)(QFutureInterface<T> &, Arg1, Arg2), Class *object, const Arg1 &arg1, const Arg2 &arg2)
+    : fn(fn), object(object), arg1(arg1), arg2(arg2) { }
+
+    QFuture<T> start()
+    {
+        futureInterface.reportStarted();
+        QFuture<T> future = futureInterface.future();
+        QThreadPool::globalInstance()->start(this);
+        return future;
+    }
+
+    void run()
+    {
+        (object->*fn)(futureInterface, arg1, arg2);
+        futureInterface.reportFinished();
+    }
+private:
+    QFutureInterface<T> futureInterface;
+    FunctionPointer fn;
+    Class *object;
+    Arg1 arg1; Arg2 arg2;
+};
+
+template <typename T,  typename FunctionPointer, typename Arg1, typename Arg2, typename Arg3>
+class StoredInterfaceFunctionCall3 : public QRunnable
+{
+public:
+    StoredInterfaceFunctionCall3(void (fn)(QFutureInterface<T> &, Arg1, Arg2, Arg3), const Arg1 &arg1, const Arg2 &arg2, const Arg3 &arg3)
+    : fn(fn), arg1(arg1), arg2(arg2), arg3(arg3) { }
+
+    QFuture<T> start()
+    {
+        futureInterface.reportStarted();
+        QFuture<T> future = futureInterface.future();
+        QThreadPool::globalInstance()->start(this);
+        return future;
+    }
+
+    void run()
+    {
+        fn(futureInterface, arg1, arg2, arg3);
+        futureInterface.reportFinished();
+    }
+private:
+    QFutureInterface<T> futureInterface;
+    FunctionPointer fn;
+    Arg1 arg1; Arg2 arg2; Arg3 arg3;
+};
+template <typename T,  typename FunctionPointer, typename Class, typename Arg1, typename Arg2, typename Arg3>
+class StoredInterfaceMemberFunctionCall3 : public QRunnable
+{
+public:
+    StoredInterfaceMemberFunctionCall3(void (Class::*fn)(QFutureInterface<T> &, Arg1, Arg2, Arg3), Class *object, const Arg1 &arg1, const Arg2 &arg2, const Arg3 &arg3)
+    : fn(fn), object(object), arg1(arg1), arg2(arg2), arg3(arg3) { }
+
+    QFuture<T> start()
+    {
+        futureInterface.reportStarted();
+        QFuture<T> future = futureInterface.future();
+        QThreadPool::globalInstance()->start(this);
+        return future;
+    }
+
+    void run()
+    {
+        (object->*fn)(futureInterface, arg1, arg2, arg3);
+        futureInterface.reportFinished();
+    }
+private:
+    QFutureInterface<T> futureInterface;
+    FunctionPointer fn;
+    Class *object;
+    Arg1 arg1; Arg2 arg2; Arg3 arg3;
+};
+
+template <typename T,  typename FunctionPointer, typename Arg1, typename Arg2, typename Arg3, typename Arg4>
+class StoredInterfaceFunctionCall4 : public QRunnable
+{
+public:
+    StoredInterfaceFunctionCall4(void (fn)(QFutureInterface<T> &, Arg1, Arg2, Arg3, Arg4), const Arg1 &arg1, const Arg2 &arg2, const Arg3 &arg3, const Arg4 &arg4)
+    : fn(fn), arg1(arg1), arg2(arg2), arg3(arg3), arg4(arg4) { }
+
+    QFuture<T> start()
+    {
+        futureInterface.reportStarted();
+        QFuture<T> future = futureInterface.future();
+        QThreadPool::globalInstance()->start(this);
+        return future;
+    }
+
+    void run()
+    {
+        fn(futureInterface, arg1, arg2, arg3, arg4);
+        futureInterface.reportFinished();
+    }
+private:
+    QFutureInterface<T> futureInterface;
+    FunctionPointer fn;
+    Arg1 arg1; Arg2 arg2; Arg3 arg3; Arg4 arg4;
+};
+template <typename T,  typename FunctionPointer, typename Class, typename Arg1, typename Arg2, typename Arg3, typename Arg4>
+class StoredInterfaceMemberFunctionCall4 : public QRunnable
+{
+public:
+    StoredInterfaceMemberFunctionCall4(void (Class::*fn)(QFutureInterface<T> &, Arg1, Arg2, Arg3, Arg4), Class *object, const Arg1 &arg1, const Arg2 &arg2, const Arg3 &arg3, const Arg4 &arg4)
+    : fn(fn), object(object), arg1(arg1), arg2(arg2), arg3(arg3), arg4(arg4) { }
+
+    QFuture<T> start()
+    {
+        futureInterface.reportStarted();
+        QFuture<T> future = futureInterface.future();
+        QThreadPool::globalInstance()->start(this);
+        return future;
+    }
+
+    void run()
+    {
+        (object->*fn)(futureInterface, arg1, arg2, arg3, arg4);
+        futureInterface.reportFinished();
+    }
+private:
+    QFutureInterface<T> futureInterface;
+    FunctionPointer fn;
+    Class *object;
+    Arg1 arg1; Arg2 arg2; Arg3 arg3; Arg4 arg4;
+};
+
+template <typename T,  typename FunctionPointer, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5>
+class StoredInterfaceFunctionCall5 : public QRunnable
+{
+public:
+    StoredInterfaceFunctionCall5(void (fn)(QFutureInterface<T> &, Arg1, Arg2, Arg3, Arg4, Arg5), const Arg1 &arg1, const Arg2 &arg2, const Arg3 &arg3, const Arg4 &arg4, const Arg5 &arg5)
+    : fn(fn), arg1(arg1), arg2(arg2), arg3(arg3), arg4(arg4), arg5(arg5) { }
+
+    QFuture<T> start()
+    {
+        futureInterface.reportStarted();
+        QFuture<T> future = futureInterface.future();
+        QThreadPool::globalInstance()->start(this);
+        return future;
+    }
+
+    void run()
+    {
+        fn(futureInterface, arg1, arg2, arg3, arg4, arg5);
+        futureInterface.reportFinished();
+    }
+private:
+    QFutureInterface<T> futureInterface;
+    FunctionPointer fn;
+    Arg1 arg1; Arg2 arg2; Arg3 arg3; Arg4 arg4; Arg5 arg5;
+};
+template <typename T,  typename FunctionPointer, typename Class, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5>
+class StoredInterfaceMemberFunctionCall5 : public QRunnable
+{
+public:
+    StoredInterfaceMemberFunctionCall5(void (Class::*fn)(QFutureInterface<T> &, Arg1, Arg2, Arg3, Arg4, Arg5), Class *object, const Arg1 &arg1, const Arg2 &arg2, const Arg3 &arg3, const Arg4 &arg4, const Arg5 &arg5)
+    : fn(fn), object(object), arg1(arg1), arg2(arg2), arg3(arg3), arg4(arg4), arg5(arg5) { }
+
+    QFuture<T> start()
+    {
+        futureInterface.reportStarted();
+        QFuture<T> future = futureInterface.future();
+        QThreadPool::globalInstance()->start(this);
+        return future;
+    }
+
+    void run()
+    {
+        (object->*fn)(futureInterface, arg1, arg2, arg3, arg4, arg5);
+        futureInterface.reportFinished();
+    }
+private:
+    QFutureInterface<T> futureInterface;
+    FunctionPointer fn;
+    Class *object;
+    Arg1 arg1; Arg2 arg2; Arg3 arg3; Arg4 arg4; Arg5 arg5;
+};
+
+template <typename T>
+QFuture<T> run(void (*functionPointer)(QFutureInterface<T> &))
+{
+    return (new StoredInterfaceFunctionCall0<T, void (*)(QFutureInterface<T> &)>(functionPointer))->start();
+}
+template <typename T, typename Arg1>
+QFuture<T> run(void (*functionPointer)(QFutureInterface<T> &, Arg1), const Arg1 &arg1)
+{
+    return (new StoredInterfaceFunctionCall1<T, void (*)(QFutureInterface<T> &, Arg1), Arg1>(functionPointer, arg1))->start();
+}
+template <typename T, typename Arg1, typename Arg2>
+QFuture<T> run(void (*functionPointer)(QFutureInterface<T> &, Arg1, Arg2), const Arg1 &arg1, const Arg2 &arg2)
+{
+    return (new StoredInterfaceFunctionCall2<T, void (*)(QFutureInterface<T> &, Arg1, Arg2), Arg1, Arg2>(functionPointer, arg1, arg2))->start();
+}
+template <typename T, typename Arg1, typename Arg2, typename Arg3>
+QFuture<T> run(void (*functionPointer)(QFutureInterface<T> &, Arg1, Arg2, Arg3), const Arg1 &arg1, const Arg2 &arg2, const Arg3 &arg3)
+{
+    return (new StoredInterfaceFunctionCall3<T, void (*)(QFutureInterface<T> &, Arg1, Arg2, Arg3), Arg1, Arg2, Arg3>(functionPointer, arg1, arg2, arg3))->start();
+}
+template <typename T, typename Arg1, typename Arg2, typename Arg3, typename Arg4>
+QFuture<T> run(void (*functionPointer)(QFutureInterface<T> &, Arg1, Arg2, Arg3, Arg4), const Arg1 &arg1, const Arg2 &arg2, const Arg3 &arg3, const Arg4 &arg4)
+{
+    return (new StoredInterfaceFunctionCall4<T, void (*)(QFutureInterface<T> &, Arg1, Arg2, Arg3, Arg4), Arg1, Arg2, Arg3, Arg4>(functionPointer, arg1, arg2, arg3, arg4))->start();
+}
+template <typename T, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5>
+QFuture<T> run(void (*functionPointer)(QFutureInterface<T> &, Arg1, Arg2, Arg3, Arg4, Arg5), const Arg1 &arg1, const Arg2 &arg2, const Arg3 &arg3, const Arg4 &arg4, const Arg5 &arg5)
+{
+    return (new StoredInterfaceFunctionCall5<T, void (*)(QFutureInterface<T> &, Arg1, Arg2, Arg3, Arg4, Arg5), Arg1, Arg2, Arg3, Arg4, Arg5>(functionPointer, arg1, arg2, arg3, arg4, arg5))->start();
+}
+
+template <typename Class, typename T>
+QFuture<T> run(void (Class::*fn)(QFutureInterface<T> &), Class *object)
+{
+    return (new StoredInterfaceMemberFunctionCall0<T, void (Class::*)(QFutureInterface<T> &), Class>(fn, object))->start();
+}
+
+template <typename Class, typename T, typename Arg1>
+QFuture<T> run(void (Class::*fn)(QFutureInterface<T> &, Arg1), Class *object, Arg1 arg1)
+{
+    return (new StoredInterfaceMemberFunctionCall1<T, void (Class::*)(QFutureInterface<T> &, Arg1), Class, Arg1>(fn, object, arg1))->start();
+}
+
+template <typename Class, typename T, typename Arg1, typename Arg2>
+QFuture<T> run(void (Class::*fn)(QFutureInterface<T> &, Arg1, Arg2), Class *object, const Arg1 &arg1, const Arg2 &arg2)
+{
+    return (new StoredInterfaceMemberFunctionCall2<T, void (Class::*)(QFutureInterface<T> &, Arg1, Arg2), Class, Arg1, Arg2>(fn, object, arg1, arg2))->start();
+}
+
+template <typename Class, typename T, typename Arg1, typename Arg2, typename Arg3>
+QFuture<T> run(void (Class::*fn)(QFutureInterface<T> &, Arg1, Arg2, Arg3), Class *object, const Arg1 &arg1, const Arg2 &arg2, const Arg3 &arg3)
+{
+    return (new StoredInterfaceMemberFunctionCall3<T, void (Class::*)(QFutureInterface<T> &, Arg1, Arg2, Arg3), Class, Arg1, Arg2, Arg3>(fn, object, arg1, arg2, arg3))->start();
+}
+
+template <typename Class, typename T, typename Arg1, typename Arg2, typename Arg3, typename Arg4>
+QFuture<T> run(void (Class::*fn)(QFutureInterface<T> &, Arg1, Arg2, Arg3, Arg4), Class *object, const Arg1 &arg1, const Arg2 &arg2, const Arg3 &arg3, const Arg4 &arg4)
+{
+    return (new StoredInterfaceMemberFunctionCall4<T, void (Class::*)(QFutureInterface<T> &, Arg1, Arg2, Arg3, Arg4), Class, Arg1, Arg2, Arg3, Arg4>(fn, object, arg1, arg2, arg3, arg4))->start();
+}
+
+template <typename Class, typename T, typename Arg1, typename Arg2, typename Arg3, typename Arg4, typename Arg5>
+QFuture<T> run(void (Class::*fn)(QFutureInterface<T> &, Arg1, Arg2, Arg3, Arg4, Arg5), Class *object, const Arg1 &arg1, const Arg2 &arg2, const Arg3 &arg3, const Arg4 &arg4, const Arg5 &arg5)
+{
+    return (new StoredInterfaceMemberFunctionCall5<T, void (Class::*)(QFutureInterface<T> &, Arg1, Arg2, Arg3, Arg4, Arg5), Class, Arg1, Arg2, Arg3, Arg4, Arg5>(fn, object, arg1, arg2, arg3, arg4, arg5))->start();
+}
+} // namespace QtConcurrent
+
+QT_END_NAMESPACE
+
+#endif // QTCONCURRENT_RUNEX_H