846 lines
21 KiB
C++
846 lines
21 KiB
C++
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/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the test suite of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, 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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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtTest/QtTest>
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#include <qcoreapplication.h>
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#include <qmutex.h>
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#include <qthread.h>
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#include <qwaitcondition.h>
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#if defined(Q_OS_SYMBIAN)
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// Symbian Open C has a bug that causes very short waits to fail sometimes
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#define COND_WAIT_TIME 50
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#else
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#define COND_WAIT_TIME 1
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#endif
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//TESTED_CLASS=
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//TESTED_FILES=
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class tst_QWaitCondition : public QObject
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{
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Q_OBJECT
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public:
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tst_QWaitCondition();
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private slots:
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void wait_QMutex();
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void wait_QReadWriteLock();
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void wakeOne();
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void wakeAll();
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void wait_RaceCondition();
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};
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static const int iterations = 10;
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// Note: some tests rely on ThreadCount being multiple of 2
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#if defined(Q_OS_SOLARIS) || ( defined(Q_OS_LINUX) && defined(QT_ARCH_ARMV6) )
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static const int ThreadCount = 4;
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#else
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static const int ThreadCount = 10;
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#endif
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tst_QWaitCondition::tst_QWaitCondition()
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{
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}
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class wait_QMutex_Thread_1 : public QThread
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{
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public:
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QMutex mutex;
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QWaitCondition cond;
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inline wait_QMutex_Thread_1()
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{ }
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void run()
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{
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mutex.lock();
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cond.wakeOne();
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cond.wait(&mutex);
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mutex.unlock();
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}
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};
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class wait_QMutex_Thread_2 : public QThread
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{
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public:
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QWaitCondition started;
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QMutex *mutex;
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QWaitCondition *cond;
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inline wait_QMutex_Thread_2()
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: mutex(0), cond(0)
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{ }
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void run()
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{
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mutex->lock();
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started.wakeOne();
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cond->wait(mutex);
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mutex->unlock();
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}
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};
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class wait_QReadWriteLock_Thread_1 : public QThread
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{
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public:
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QReadWriteLock readWriteLock;
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QWaitCondition cond;
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inline wait_QReadWriteLock_Thread_1()
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{ }
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void run()
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{
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readWriteLock.lockForWrite();
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cond.wakeOne();
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cond.wait(&readWriteLock);
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readWriteLock.unlock();
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}
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};
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class wait_QReadWriteLock_Thread_2 : public QThread
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{
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public:
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QWaitCondition started;
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QReadWriteLock *readWriteLock;
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QWaitCondition *cond;
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inline wait_QReadWriteLock_Thread_2()
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: readWriteLock(0), cond(0)
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{ }
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void run()
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{
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readWriteLock->lockForRead();
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started.wakeOne();
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cond->wait(readWriteLock);
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readWriteLock->unlock();
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}
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};
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void tst_QWaitCondition::wait_QMutex()
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{
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int x;
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for (int i = 0; i < iterations; ++i) {
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{
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QMutex mutex;
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QWaitCondition cond;
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mutex.lock();
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cond.wakeOne();
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QVERIFY(!cond.wait(&mutex, 1));
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cond.wakeAll();
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QVERIFY(!cond.wait(&mutex, 1));
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mutex.unlock();
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}
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{
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// test multiple threads waiting on separate wait conditions
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wait_QMutex_Thread_1 thread[ThreadCount];
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for (x = 0; x < ThreadCount; ++x) {
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thread[x].mutex.lock();
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thread[x].start();
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// wait for thread to start
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QVERIFY(thread[x].cond.wait(&thread[x].mutex, 1000));
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thread[x].mutex.unlock();
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}
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for (x = 0; x < ThreadCount; ++x) {
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QVERIFY(thread[x].isRunning());
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QVERIFY(!thread[x].isFinished());
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}
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for (x = 0; x < ThreadCount; ++x) {
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thread[x].mutex.lock();
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thread[x].cond.wakeOne();
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thread[x].mutex.unlock();
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}
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for (x = 0; x < ThreadCount; ++x) {
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QVERIFY(thread[x].wait(1000));
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}
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}
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{
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// test multiple threads waiting on a wait condition
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QMutex mutex;
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QWaitCondition cond1, cond2;
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wait_QMutex_Thread_2 thread[ThreadCount];
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mutex.lock();
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for (x = 0; x < ThreadCount; ++x) {
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thread[x].mutex = &mutex;
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thread[x].cond = (x < ThreadCount / 2) ? &cond1 : &cond2;
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thread[x].start();
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// wait for thread to start
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QVERIFY(thread[x].started.wait(&mutex, 1000));
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}
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mutex.unlock();
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for (x = 0; x < ThreadCount; ++x) {
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QVERIFY(thread[x].isRunning());
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QVERIFY(!thread[x].isFinished());
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}
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mutex.lock();
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cond1.wakeAll();
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cond2.wakeAll();
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mutex.unlock();
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for (x = 0; x < ThreadCount; ++x) {
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QVERIFY(thread[x].wait(1000));
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}
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}
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}
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}
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void tst_QWaitCondition::wait_QReadWriteLock()
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{
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{
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QReadWriteLock readWriteLock(QReadWriteLock::Recursive);
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QWaitCondition waitCondition;
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// ensure that the lockForRead is correctly restored
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readWriteLock.lockForRead();
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QVERIFY(!waitCondition.wait(&readWriteLock, 1));
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QVERIFY(!readWriteLock.tryLockForWrite());
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QVERIFY(readWriteLock.tryLockForRead());
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readWriteLock.unlock();
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QVERIFY(!readWriteLock.tryLockForWrite());
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readWriteLock.unlock();
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QVERIFY(readWriteLock.tryLockForWrite());
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readWriteLock.unlock();
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}
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{
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QReadWriteLock readWriteLock(QReadWriteLock::Recursive);
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QWaitCondition waitCondition;
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// ensure that the lockForWrite is correctly restored
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readWriteLock.lockForWrite();
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QVERIFY(!waitCondition.wait(&readWriteLock, 1));
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QVERIFY(!readWriteLock.tryLockForRead());
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QVERIFY(readWriteLock.tryLockForWrite());
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readWriteLock.unlock();
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QVERIFY(!readWriteLock.tryLockForRead());
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readWriteLock.unlock();
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QVERIFY(readWriteLock.tryLockForRead());
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readWriteLock.unlock();
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}
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int x;
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for (int i = 0; i < iterations; ++i) {
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{
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QReadWriteLock readWriteLock;
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QWaitCondition waitCondition;
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readWriteLock.lockForRead();
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waitCondition.wakeOne();
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QVERIFY(!waitCondition.wait(&readWriteLock, 1));
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waitCondition.wakeAll();
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QVERIFY(!waitCondition.wait(&readWriteLock, 1));
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readWriteLock.unlock();
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}
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{
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QReadWriteLock readWriteLock;
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QWaitCondition waitCondition;
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readWriteLock.lockForWrite();
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waitCondition.wakeOne();
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QVERIFY(!waitCondition.wait(&readWriteLock, 1));
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waitCondition.wakeAll();
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QVERIFY(!waitCondition.wait(&readWriteLock, 1));
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readWriteLock.unlock();
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}
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{
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// test multiple threads waiting on separate wait conditions
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wait_QReadWriteLock_Thread_1 thread[ThreadCount];
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for (x = 0; x < ThreadCount; ++x) {
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thread[x].readWriteLock.lockForRead();
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thread[x].start();
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// wait for thread to start
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#if defined(Q_OS_SYMBIAN) && defined(Q_CC_WINSCW)
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// Symbian emulator startup simultaneously with this thread causes additional delay
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QVERIFY(thread[x].cond.wait(&thread[x].readWriteLock, 10000));
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#else
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QVERIFY(thread[x].cond.wait(&thread[x].readWriteLock, 1000));
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#endif
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thread[x].readWriteLock.unlock();
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}
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for (x = 0; x < ThreadCount; ++x) {
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QVERIFY(thread[x].isRunning());
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QVERIFY(!thread[x].isFinished());
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}
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for (x = 0; x < ThreadCount; ++x) {
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thread[x].readWriteLock.lockForRead();
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thread[x].cond.wakeOne();
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thread[x].readWriteLock.unlock();
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}
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for (x = 0; x < ThreadCount; ++x) {
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QVERIFY(thread[x].wait(1000));
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}
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}
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{
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// test multiple threads waiting on a wait condition
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QReadWriteLock readWriteLock;
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QWaitCondition cond1, cond2;
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wait_QReadWriteLock_Thread_2 thread[ThreadCount];
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readWriteLock.lockForWrite();
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for (x = 0; x < ThreadCount; ++x) {
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thread[x].readWriteLock = &readWriteLock;
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thread[x].cond = (x < ThreadCount / 2) ? &cond1 : &cond2;
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thread[x].start();
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// wait for thread to start
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QVERIFY(thread[x].started.wait(&readWriteLock, 1000));
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}
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readWriteLock.unlock();
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for (x = 0; x < ThreadCount; ++x) {
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QVERIFY(thread[x].isRunning());
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QVERIFY(!thread[x].isFinished());
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}
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readWriteLock.lockForWrite();
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cond1.wakeAll();
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cond2.wakeAll();
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readWriteLock.unlock();
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for (x = 0; x < ThreadCount; ++x) {
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QVERIFY(thread[x].wait(1000));
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}
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}
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}
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}
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class wake_Thread : public QThread
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{
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public:
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static int count;
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QWaitCondition started;
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QWaitCondition dummy;
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QMutex *mutex;
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QWaitCondition *cond;
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inline wake_Thread()
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: mutex(0), cond(0)
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{ }
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static inline void sleep(ulong s)
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{ QThread::sleep(s); }
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void run()
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{
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mutex->lock();
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++count;
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dummy.wakeOne(); // this wakeup should be lost
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started.wakeOne();
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dummy.wakeAll(); // this one too
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cond->wait(mutex);
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--count;
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mutex->unlock();
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}
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};
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|
||
|
|
int wake_Thread::count = 0;
|
||
|
|
|
||
|
|
class wake_Thread_2 : public QThread
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
static int count;
|
||
|
|
|
||
|
|
QWaitCondition started;
|
||
|
|
QWaitCondition dummy;
|
||
|
|
|
||
|
|
QReadWriteLock *readWriteLock;
|
||
|
|
QWaitCondition *cond;
|
||
|
|
|
||
|
|
inline wake_Thread_2()
|
||
|
|
: readWriteLock(0), cond(0)
|
||
|
|
{ }
|
||
|
|
|
||
|
|
static inline void sleep(ulong s)
|
||
|
|
{ QThread::sleep(s); }
|
||
|
|
|
||
|
|
void run()
|
||
|
|
{
|
||
|
|
readWriteLock->lockForWrite();
|
||
|
|
++count;
|
||
|
|
dummy.wakeOne(); // this wakeup should be lost
|
||
|
|
started.wakeOne();
|
||
|
|
dummy.wakeAll(); // this one too
|
||
|
|
cond->wait(readWriteLock);
|
||
|
|
--count;
|
||
|
|
readWriteLock->unlock();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
int wake_Thread_2::count = 0;
|
||
|
|
|
||
|
|
void tst_QWaitCondition::wakeOne()
|
||
|
|
{
|
||
|
|
int x;
|
||
|
|
// wake up threads, one at a time
|
||
|
|
for (int i = 0; i < iterations; ++i) {
|
||
|
|
QMutex mutex;
|
||
|
|
QWaitCondition cond;
|
||
|
|
|
||
|
|
// QMutex
|
||
|
|
wake_Thread thread[ThreadCount];
|
||
|
|
bool thread_exited[ThreadCount];
|
||
|
|
|
||
|
|
mutex.lock();
|
||
|
|
for (x = 0; x < ThreadCount; ++x) {
|
||
|
|
thread[x].mutex = &mutex;
|
||
|
|
thread[x].cond = &cond;
|
||
|
|
thread_exited[x] = FALSE;
|
||
|
|
thread[x].start();
|
||
|
|
// wait for thread to start
|
||
|
|
QVERIFY(thread[x].started.wait(&mutex, 1000));
|
||
|
|
// make sure wakeups are not queued... if nothing is
|
||
|
|
// waiting at the time of the wakeup, nothing happens
|
||
|
|
QVERIFY(!thread[x].dummy.wait(&mutex, 1));
|
||
|
|
}
|
||
|
|
mutex.unlock();
|
||
|
|
|
||
|
|
QCOMPARE(wake_Thread::count, ThreadCount);
|
||
|
|
|
||
|
|
// wake up threads one at a time
|
||
|
|
for (x = 0; x < ThreadCount; ++x) {
|
||
|
|
mutex.lock();
|
||
|
|
cond.wakeOne();
|
||
|
|
QVERIFY(!cond.wait(&mutex, COND_WAIT_TIME));
|
||
|
|
QVERIFY(!thread[x].dummy.wait(&mutex, 1));
|
||
|
|
mutex.unlock();
|
||
|
|
|
||
|
|
int exited = 0;
|
||
|
|
for (int y = 0; y < ThreadCount; ++y) {
|
||
|
|
if (thread_exited[y])
|
||
|
|
continue;
|
||
|
|
if (thread[y].wait(exited > 0 ? 3 : 1000)) {
|
||
|
|
thread_exited[y] = TRUE;
|
||
|
|
++exited;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
QCOMPARE(exited, 1);
|
||
|
|
QCOMPARE(wake_Thread::count, ThreadCount - (x + 1));
|
||
|
|
}
|
||
|
|
|
||
|
|
QCOMPARE(wake_Thread::count, 0);
|
||
|
|
|
||
|
|
// QReadWriteLock
|
||
|
|
QReadWriteLock readWriteLock;
|
||
|
|
wake_Thread_2 rwthread[ThreadCount];
|
||
|
|
|
||
|
|
readWriteLock.lockForWrite();
|
||
|
|
for (x = 0; x < ThreadCount; ++x) {
|
||
|
|
rwthread[x].readWriteLock = &readWriteLock;
|
||
|
|
rwthread[x].cond = &cond;
|
||
|
|
thread_exited[x] = FALSE;
|
||
|
|
rwthread[x].start();
|
||
|
|
// wait for thread to start
|
||
|
|
QVERIFY(rwthread[x].started.wait(&readWriteLock, 1000));
|
||
|
|
// make sure wakeups are not queued... if nothing is
|
||
|
|
// waiting at the time of the wakeup, nothing happens
|
||
|
|
QVERIFY(!rwthread[x].dummy.wait(&readWriteLock, 1));
|
||
|
|
}
|
||
|
|
readWriteLock.unlock();
|
||
|
|
|
||
|
|
QCOMPARE(wake_Thread_2::count, ThreadCount);
|
||
|
|
|
||
|
|
// wake up threads one at a time
|
||
|
|
for (x = 0; x < ThreadCount; ++x) {
|
||
|
|
readWriteLock.lockForWrite();
|
||
|
|
cond.wakeOne();
|
||
|
|
QVERIFY(!cond.wait(&readWriteLock, COND_WAIT_TIME));
|
||
|
|
QVERIFY(!rwthread[x].dummy.wait(&readWriteLock, 1));
|
||
|
|
readWriteLock.unlock();
|
||
|
|
|
||
|
|
int exited = 0;
|
||
|
|
for (int y = 0; y < ThreadCount; ++y) {
|
||
|
|
if (thread_exited[y])
|
||
|
|
continue;
|
||
|
|
if (rwthread[y].wait(exited > 0 ? 3 : 1000)) {
|
||
|
|
thread_exited[y] = TRUE;
|
||
|
|
++exited;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
QCOMPARE(exited, 1);
|
||
|
|
QCOMPARE(wake_Thread_2::count, ThreadCount - (x + 1));
|
||
|
|
}
|
||
|
|
|
||
|
|
QCOMPARE(wake_Thread_2::count, 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
// wake up threads, two at a time
|
||
|
|
for (int i = 0; i < iterations; ++i) {
|
||
|
|
QMutex mutex;
|
||
|
|
QWaitCondition cond;
|
||
|
|
|
||
|
|
// QMutex
|
||
|
|
wake_Thread thread[ThreadCount];
|
||
|
|
bool thread_exited[ThreadCount];
|
||
|
|
|
||
|
|
mutex.lock();
|
||
|
|
for (x = 0; x < ThreadCount; ++x) {
|
||
|
|
thread[x].mutex = &mutex;
|
||
|
|
thread[x].cond = &cond;
|
||
|
|
thread_exited[x] = FALSE;
|
||
|
|
thread[x].start();
|
||
|
|
// wait for thread to start
|
||
|
|
QVERIFY(thread[x].started.wait(&mutex, 1000));
|
||
|
|
// make sure wakeups are not queued... if nothing is
|
||
|
|
// waiting at the time of the wakeup, nothing happens
|
||
|
|
QVERIFY(!thread[x].dummy.wait(&mutex, 1));
|
||
|
|
}
|
||
|
|
mutex.unlock();
|
||
|
|
|
||
|
|
QCOMPARE(wake_Thread::count, ThreadCount);
|
||
|
|
|
||
|
|
// wake up threads one at a time
|
||
|
|
for (x = 0; x < ThreadCount; x += 2) {
|
||
|
|
mutex.lock();
|
||
|
|
cond.wakeOne();
|
||
|
|
cond.wakeOne();
|
||
|
|
QVERIFY(!cond.wait(&mutex, COND_WAIT_TIME));
|
||
|
|
QVERIFY(!thread[x].dummy.wait(&mutex, 1));
|
||
|
|
QVERIFY(!thread[x + 1].dummy.wait(&mutex, 1));
|
||
|
|
mutex.unlock();
|
||
|
|
|
||
|
|
int exited = 0;
|
||
|
|
for (int y = 0; y < ThreadCount; ++y) {
|
||
|
|
if (thread_exited[y])
|
||
|
|
continue;
|
||
|
|
if (thread[y].wait(exited > 0 ? 3 : 1000)) {
|
||
|
|
thread_exited[y] = TRUE;
|
||
|
|
++exited;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
QCOMPARE(exited, 2);
|
||
|
|
QCOMPARE(wake_Thread::count, ThreadCount - (x + 2));
|
||
|
|
}
|
||
|
|
|
||
|
|
QCOMPARE(wake_Thread::count, 0);
|
||
|
|
|
||
|
|
// QReadWriteLock
|
||
|
|
QReadWriteLock readWriteLock;
|
||
|
|
wake_Thread_2 rwthread[ThreadCount];
|
||
|
|
|
||
|
|
readWriteLock.lockForWrite();
|
||
|
|
for (x = 0; x < ThreadCount; ++x) {
|
||
|
|
rwthread[x].readWriteLock = &readWriteLock;
|
||
|
|
rwthread[x].cond = &cond;
|
||
|
|
thread_exited[x] = FALSE;
|
||
|
|
rwthread[x].start();
|
||
|
|
// wait for thread to start
|
||
|
|
QVERIFY(rwthread[x].started.wait(&readWriteLock, 1000));
|
||
|
|
// make sure wakeups are not queued... if nothing is
|
||
|
|
// waiting at the time of the wakeup, nothing happens
|
||
|
|
QVERIFY(!rwthread[x].dummy.wait(&readWriteLock, 1));
|
||
|
|
}
|
||
|
|
readWriteLock.unlock();
|
||
|
|
|
||
|
|
QCOMPARE(wake_Thread_2::count, ThreadCount);
|
||
|
|
|
||
|
|
// wake up threads one at a time
|
||
|
|
for (x = 0; x < ThreadCount; x += 2) {
|
||
|
|
readWriteLock.lockForWrite();
|
||
|
|
cond.wakeOne();
|
||
|
|
cond.wakeOne();
|
||
|
|
QVERIFY(!cond.wait(&readWriteLock, COND_WAIT_TIME));
|
||
|
|
QVERIFY(!rwthread[x].dummy.wait(&readWriteLock, 1));
|
||
|
|
QVERIFY(!rwthread[x + 1].dummy.wait(&readWriteLock, 1));
|
||
|
|
readWriteLock.unlock();
|
||
|
|
|
||
|
|
int exited = 0;
|
||
|
|
for (int y = 0; y < ThreadCount; ++y) {
|
||
|
|
if (thread_exited[y])
|
||
|
|
continue;
|
||
|
|
if (rwthread[y].wait(exited > 0 ? 3 : 1000)) {
|
||
|
|
thread_exited[y] = TRUE;
|
||
|
|
++exited;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
QCOMPARE(exited, 2);
|
||
|
|
QCOMPARE(wake_Thread_2::count, ThreadCount - (x + 2));
|
||
|
|
}
|
||
|
|
|
||
|
|
QCOMPARE(wake_Thread_2::count, 0);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void tst_QWaitCondition::wakeAll()
|
||
|
|
{
|
||
|
|
int x;
|
||
|
|
for (int i = 0; i < iterations; ++i) {
|
||
|
|
QMutex mutex;
|
||
|
|
QWaitCondition cond;
|
||
|
|
|
||
|
|
// QMutex
|
||
|
|
wake_Thread thread[ThreadCount];
|
||
|
|
|
||
|
|
mutex.lock();
|
||
|
|
for (x = 0; x < ThreadCount; ++x) {
|
||
|
|
thread[x].mutex = &mutex;
|
||
|
|
thread[x].cond = &cond;
|
||
|
|
thread[x].start();
|
||
|
|
// wait for thread to start
|
||
|
|
QVERIFY(thread[x].started.wait(&mutex, 1000));
|
||
|
|
}
|
||
|
|
mutex.unlock();
|
||
|
|
|
||
|
|
QCOMPARE(wake_Thread::count, ThreadCount);
|
||
|
|
|
||
|
|
// wake up all threads at once
|
||
|
|
mutex.lock();
|
||
|
|
cond.wakeAll();
|
||
|
|
QVERIFY(!cond.wait(&mutex, COND_WAIT_TIME));
|
||
|
|
mutex.unlock();
|
||
|
|
|
||
|
|
int exited = 0;
|
||
|
|
for (x = 0; x < ThreadCount; ++x) {
|
||
|
|
if (thread[x].wait(1000))
|
||
|
|
++exited;
|
||
|
|
}
|
||
|
|
|
||
|
|
QCOMPARE(exited, ThreadCount);
|
||
|
|
QCOMPARE(wake_Thread::count, 0);
|
||
|
|
|
||
|
|
// QReadWriteLock
|
||
|
|
QReadWriteLock readWriteLock;
|
||
|
|
wake_Thread_2 rwthread[ThreadCount];
|
||
|
|
|
||
|
|
readWriteLock.lockForWrite();
|
||
|
|
for (x = 0; x < ThreadCount; ++x) {
|
||
|
|
rwthread[x].readWriteLock = &readWriteLock;
|
||
|
|
rwthread[x].cond = &cond;
|
||
|
|
rwthread[x].start();
|
||
|
|
// wait for thread to start
|
||
|
|
QVERIFY(rwthread[x].started.wait(&readWriteLock, 1000));
|
||
|
|
}
|
||
|
|
readWriteLock.unlock();
|
||
|
|
|
||
|
|
QCOMPARE(wake_Thread_2::count, ThreadCount);
|
||
|
|
|
||
|
|
// wake up all threads at once
|
||
|
|
readWriteLock.lockForWrite();
|
||
|
|
cond.wakeAll();
|
||
|
|
QVERIFY(!cond.wait(&readWriteLock, COND_WAIT_TIME));
|
||
|
|
readWriteLock.unlock();
|
||
|
|
|
||
|
|
exited = 0;
|
||
|
|
for (x = 0; x < ThreadCount; ++x) {
|
||
|
|
if (rwthread[x].wait(1000))
|
||
|
|
++exited;
|
||
|
|
}
|
||
|
|
|
||
|
|
QCOMPARE(exited, ThreadCount);
|
||
|
|
QCOMPARE(wake_Thread_2::count, 0);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
class wait_RaceConditionThread : public QThread
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
wait_RaceConditionThread(QMutex *mutex, QWaitCondition *startup, QWaitCondition *waitCondition,
|
||
|
|
ulong timeout = ULONG_MAX)
|
||
|
|
: timeout(timeout), returnValue(false), ready(false),
|
||
|
|
mutex(mutex), startup(startup), waitCondition(waitCondition) {}
|
||
|
|
|
||
|
|
unsigned long timeout;
|
||
|
|
bool returnValue;
|
||
|
|
|
||
|
|
bool ready;
|
||
|
|
|
||
|
|
QMutex *mutex;
|
||
|
|
QWaitCondition *startup;
|
||
|
|
QWaitCondition *waitCondition;
|
||
|
|
|
||
|
|
void run() {
|
||
|
|
mutex->lock();
|
||
|
|
|
||
|
|
ready = true;
|
||
|
|
startup->wakeOne();
|
||
|
|
|
||
|
|
returnValue = waitCondition->wait(mutex, timeout);
|
||
|
|
|
||
|
|
mutex->unlock();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
class wait_RaceConditionThread_2 : public QThread
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
wait_RaceConditionThread_2(QReadWriteLock *readWriteLock,
|
||
|
|
QWaitCondition *startup,
|
||
|
|
QWaitCondition *waitCondition,
|
||
|
|
ulong timeout = ULONG_MAX)
|
||
|
|
: timeout(timeout), returnValue(false), ready(false),
|
||
|
|
readWriteLock(readWriteLock), startup(startup), waitCondition(waitCondition)
|
||
|
|
{ }
|
||
|
|
|
||
|
|
unsigned long timeout;
|
||
|
|
bool returnValue;
|
||
|
|
|
||
|
|
bool ready;
|
||
|
|
|
||
|
|
QReadWriteLock *readWriteLock;
|
||
|
|
QWaitCondition *startup;
|
||
|
|
QWaitCondition *waitCondition;
|
||
|
|
|
||
|
|
void run() {
|
||
|
|
readWriteLock->lockForWrite();
|
||
|
|
|
||
|
|
ready = true;
|
||
|
|
startup->wakeOne();
|
||
|
|
|
||
|
|
returnValue = waitCondition->wait(readWriteLock, timeout);
|
||
|
|
|
||
|
|
readWriteLock->unlock();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
void tst_QWaitCondition::wait_RaceCondition()
|
||
|
|
{
|
||
|
|
{
|
||
|
|
QMutex mutex;
|
||
|
|
QWaitCondition startup;
|
||
|
|
QWaitCondition waitCondition;
|
||
|
|
|
||
|
|
wait_RaceConditionThread timeoutThread(&mutex, &startup, &waitCondition, 1000),
|
||
|
|
waitingThread1(&mutex, &startup, &waitCondition);
|
||
|
|
|
||
|
|
timeoutThread.start();
|
||
|
|
waitingThread1.start();
|
||
|
|
mutex.lock();
|
||
|
|
|
||
|
|
// wait for the threads to start up
|
||
|
|
while (!timeoutThread.ready
|
||
|
|
|| !waitingThread1.ready) {
|
||
|
|
startup.wait(&mutex);
|
||
|
|
}
|
||
|
|
|
||
|
|
QTest::qWait(2000);
|
||
|
|
|
||
|
|
waitCondition.wakeOne();
|
||
|
|
|
||
|
|
mutex.unlock();
|
||
|
|
|
||
|
|
QVERIFY(timeoutThread.wait(5000));
|
||
|
|
QVERIFY(!timeoutThread.returnValue);
|
||
|
|
QVERIFY(waitingThread1.wait(5000));
|
||
|
|
QVERIFY(waitingThread1.returnValue);
|
||
|
|
}
|
||
|
|
|
||
|
|
{
|
||
|
|
QReadWriteLock readWriteLock;
|
||
|
|
QWaitCondition startup;
|
||
|
|
QWaitCondition waitCondition;
|
||
|
|
|
||
|
|
wait_RaceConditionThread_2 timeoutThread(&readWriteLock, &startup, &waitCondition, 1000),
|
||
|
|
waitingThread1(&readWriteLock, &startup, &waitCondition);
|
||
|
|
|
||
|
|
timeoutThread.start();
|
||
|
|
waitingThread1.start();
|
||
|
|
readWriteLock.lockForRead();
|
||
|
|
|
||
|
|
// wait for the threads to start up
|
||
|
|
while (!timeoutThread.ready
|
||
|
|
|| !waitingThread1.ready) {
|
||
|
|
startup.wait(&readWriteLock);
|
||
|
|
}
|
||
|
|
|
||
|
|
QTest::qWait(2000);
|
||
|
|
|
||
|
|
waitCondition.wakeOne();
|
||
|
|
|
||
|
|
readWriteLock.unlock();
|
||
|
|
|
||
|
|
QVERIFY(timeoutThread.wait(5000));
|
||
|
|
QVERIFY(!timeoutThread.returnValue);
|
||
|
|
QVERIFY(waitingThread1.wait(5000));
|
||
|
|
QVERIFY(waitingThread1.returnValue);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
QTEST_MAIN(tst_QWaitCondition)
|
||
|
|
#include "tst_qwaitcondition.moc"
|