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/* -*- C++ -*-
This file contains a testsuite for the memory management in ThreadWeaver.
$ Author: Mirko Boehm $
$ Copyright: (C) 2005-2013 Mirko Boehm $
$ Contact: mirko@kde.org
http://www.kde.org
http://creative-destruction.me $
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <QEventLoop>
#include "DeleteTest.h"
#include <ThreadWeaver/JobPointer>
#include <ThreadWeaver/QObjectDecorator>
#include <ThreadWeaver/Sequence>
#include <ThreadWeaver/ThreadWeaver>
#include <ThreadWeaver/DebuggingAids>
#include "AppendCharacterJob.h"
class InstanceCountingSequence : public Sequence
{
public:
explicit InstanceCountingSequence()
: Sequence()
{
instances_.fetchAndAddAcquire(1);
}
~InstanceCountingSequence()
{
instances_.fetchAndAddAcquire(-1);
}
static int instances()
{
return instances_.loadAcquire();
}
private:
static QAtomicInt instances_;
};
QAtomicInt InstanceCountingSequence::instances_;
DeleteTest::DeleteTest()
{
ThreadWeaver::setDebugLevel(true, 1);
ThreadWeaver::Queue::instance()->setMaximumNumberOfThreads(4);
}
void DeleteTest::DeleteSequenceTest()
{
const int NumberOfSequences = 100;
ThreadWeaver::Queue::instance()->suspend();
for (int i = 0; i < NumberOfSequences; ++i) {
QJobPointer seq(new QObjectDecorator(new InstanceCountingSequence));
seq->sequence()->addJob(JobPointer(new BusyJob));
seq->sequence()->addJob(JobPointer(new BusyJob));
QVERIFY(connect(seq.data(), SIGNAL(done(ThreadWeaver::JobPointer)), SLOT(deleteSequence(ThreadWeaver::JobPointer))));
ThreadWeaver::Queue::instance()->enqueue(seq);
m_finishCount.fetchAndAddRelease(1);
}
QCOMPARE(m_finishCount.loadAcquire(), NumberOfSequences);
QEventLoop loop;
QVERIFY(connect(this, SIGNAL(deleteSequenceTestCompleted()), &loop, SLOT(quit()), Qt::QueuedConnection));
ThreadWeaver::Queue::instance()->resume();
ThreadWeaver::Queue::instance()->finish();
loop.exec();
QCOMPARE(m_finishCount.loadAcquire(), 0);
// The used Weaver instance needs to be shut down. The threads may still hold a reference to the previous job while
// waiting for the next one or blocking because the queue is empty. If all threads have exited, no references to any jobs are
// held anymore.
ThreadWeaver::Queue::instance()->shutDown();
QCOMPARE(InstanceCountingSequence::instances(), 0);
}
void DeleteTest::deleteSequence(ThreadWeaver::JobPointer)
{
if (m_finishCount.fetchAndAddRelease(-1) == 1) { // if it *was* 1...
emit deleteSequenceTestCompleted();
}
}
QMutex s_GlobalMutex;
QTEST_MAIN(DeleteTest)
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