mirror of
https://bitbucket.org/smil3y/katie.git
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134 lines
3.2 KiB
C++
134 lines
3.2 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Copyright (C) 2016 Ivailo Monev
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**
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** This file is part of the test suite of the Katie Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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**
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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "signalbug.h"
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#include <qcoreapplication.h>
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#include <qstring.h>
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#include <stdio.h>
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static int Step = 0;
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Sender RandomSender (0, 0);
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void TRACE (int step, const char *name)
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{
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for (int t = 0; t < step - 1; t++)
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fprintf (stderr, "\t");
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fprintf (stderr, "Step %d: %s\n", step, name);
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return;
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}
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Receiver::Receiver ()
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: QObject ()
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{
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}
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void Receiver::received ()
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{
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::Step++;
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const int stepCopy = ::Step;
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TRACE (stepCopy, "Receiver::received()");
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if (::Step != 2 && ::Step != 4)
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qFatal("%s: Incorrect Step: %d (should be 2 or 4)", Q_FUNC_INFO, ::Step);
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if (::Step == 2)
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s->fire ();
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fprintf (stderr, "Receiver<%s>::received() sender=%s\n",
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(const char *) objectName ().toAscii (), sender ()->metaObject()->className());
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TRACE (stepCopy, "ends Receiver::received()");
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}
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Disconnector::Disconnector ()
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: QObject ()
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{
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}
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void Disconnector::received ()
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{
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::Step++;
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const int stepCopy = ::Step;
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TRACE (stepCopy, "Disconnector::received()");
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if (::Step != 5 && ::Step != 6)
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qFatal("%s: Incorrect Step: %d (should be 5 or 6)", Q_FUNC_INFO, ::Step);
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fprintf (stderr, "Disconnector<%s>::received() sender=%s\n",
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(const char *) objectName ().toAscii (), sender ()->metaObject()->className());
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if (sender () == 0)
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fprintf (stderr, "WE SHOULD NOT BE RECEIVING THIS SIGNAL\n");
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if (::Step == 5)
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{
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disconnect (s, SIGNAL (fired ()), s->d, SLOT (received ()));
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connect (&RandomSender, SIGNAL (fired ()), s->d, SLOT (received ()));
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}
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TRACE (stepCopy, "ends Disconnector::received()");
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}
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Sender::Sender (Receiver *r, Disconnector *d)
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: QObject ()
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{
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this->r = r; this->d = d;
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if (r)
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connect (this, SIGNAL (fired ()), r, SLOT (received ()));
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if (d)
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connect (this, SIGNAL (fired ()), d, SLOT (received ()));
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};
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void Sender::fire ()
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{
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::Step++;
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const int stepCopy = ::Step;
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TRACE (stepCopy, "Sender::fire()");
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if (::Step != 1 && ::Step != 3)
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qFatal("%s: Incorrect Step: %d (should be 1 or 3)", Q_FUNC_INFO, ::Step);
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emit fired ();
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TRACE (stepCopy, "ends Sender::fire()");
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}
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int main (int argc, char *argv [])
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{
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QCoreApplication app (argc, argv);
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Receiver r;
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Disconnector d;
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Sender s (&r, &d);
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r.s = &s;
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d.s = &s;
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::Step = 0;
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s.fire ();
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return 0;
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}
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#include "moc_signalbug.h"
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