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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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, Nokia gives you certain additional
** rights. These rights are described in the Nokia 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "signalbug.h"
#include <qcoreapplication.h>
#include <qstring.h>
#include <stdio.h>
static int Step = 0;
Sender RandomSender (0, 0);
void TRACE (int step, const char *name)
{
for (int t = 0; t < step - 1; t++)
fprintf (stderr, "\t");
fprintf (stderr, "Step %d: %s\n", step, name);
return;
}
Receiver::Receiver ()
: QObject ()
{
}
void Receiver::received ()
{
::Step++;
const int stepCopy = ::Step;
TRACE (stepCopy, "Receiver::received()");
if (::Step != 2 && ::Step != 4)
qFatal("%s: Incorrect Step: %d (should be 2 or 4)", Q_FUNC_INFO, ::Step);
if (::Step == 2)
s->fire ();
fprintf (stderr, "Receiver<%s>::received() sender=%s\n",
(const char *) objectName ().toAscii (), sender ()->metaObject()->className());
TRACE (stepCopy, "ends Receiver::received()");
}
Disconnector::Disconnector ()
: QObject ()
{
}
void Disconnector::received ()
{
::Step++;
const int stepCopy = ::Step;
TRACE (stepCopy, "Disconnector::received()");
if (::Step != 5 && ::Step != 6)
qFatal("%s: Incorrect Step: %d (should be 5 or 6)", Q_FUNC_INFO, ::Step);
fprintf (stderr, "Disconnector<%s>::received() sender=%s\n",
(const char *) objectName ().toAscii (), sender ()->metaObject()->className());
if (sender () == 0)
fprintf (stderr, "WE SHOULD NOT BE RECEIVING THIS SIGNAL\n");
if (::Step == 5)
{
disconnect (s, SIGNAL (fired ()), s->d, SLOT (received ()));
connect (&RandomSender, SIGNAL (fired ()), s->d, SLOT (received ()));
}
TRACE (stepCopy, "ends Disconnector::received()");
}
Sender::Sender (Receiver *r, Disconnector *d)
: QObject ()
{
this->r = r; this->d = d;
if (r)
connect (this, SIGNAL (fired ()), r, SLOT (received ()));
if (d)
connect (this, SIGNAL (fired ()), d, SLOT (received ()));
};
void Sender::fire ()
{
::Step++;
const int stepCopy = ::Step;
TRACE (stepCopy, "Sender::fire()");
if (::Step != 1 && ::Step != 3)
qFatal("%s: Incorrect Step: %d (should be 1 or 3)", Q_FUNC_INFO, ::Step);
emit fired ();
TRACE (stepCopy, "ends Sender::fire()");
}
int main (int argc, char *argv [])
{
QCoreApplication app (argc, argv);
Receiver r;
Disconnector d;
Sender s (&r, &d);
r.s = &s;
d.s = &s;
::Step = 0;
s.fire ();
return 0;
}
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