QG4/libs/qtconcurrent/runextensions.h

/**
 ******************************************************************************
 *
 * @file       runextensions.h
 * @author     The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
 *             Parts by Nokia Corporation (qt-info@nokia.com) Copyright (C) 2009.
 * @brief      
 * @see        The GNU Public License (GPL) Version 3
 * @defgroup   
 * @{
 * 
 *****************************************************************************/
/* 
 * This program is free software; you can redistribute it and/or modify 
 * it under the terms of the GNU General Public License as published by 
 * the Free Software Foundation; either version 3 of the License, or 
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, but 
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 
 * for more details.
 * 
 * You should have received a copy of the GNU General Public License along 
 * with this program; if not, write to the Free Software Foundation, Inc., 
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#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), 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, 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), Arg1 arg1, 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, Arg1 arg1, 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), Arg1 arg1, Arg2 arg2, 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, Arg1 arg1, Arg2 arg2, 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), Arg1 arg1, Arg2 arg2, Arg3 arg3, 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, Arg1 arg1, Arg2 arg2, Arg3 arg3, 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), Arg1 arg1, Arg2 arg2, Arg3 arg3, Arg4 arg4, 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, Arg1 arg1, Arg2 arg2, Arg3 arg3, Arg4 arg4, 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), 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), Arg1 arg1, 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), Arg1 arg1, Arg2 arg2, 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), Arg1 arg1, Arg2 arg2, Arg3 arg3, 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), Arg1 arg1, Arg2 arg2, Arg3 arg3, Arg4 arg4, 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();
}

} // namespace QtConcurrent

QT_END_NAMESPACE

#endif // QTCONCURRENT_RUNEX_H