diff options
Diffstat (limited to 'tests/benchmarks/corelib/thread/qwaitcondition/tst_qwaitcondition.cpp')
| -rw-r--r-- | tests/benchmarks/corelib/thread/qwaitcondition/tst_qwaitcondition.cpp | 210 |
1 files changed, 210 insertions, 0 deletions
diff --git a/tests/benchmarks/corelib/thread/qwaitcondition/tst_qwaitcondition.cpp b/tests/benchmarks/corelib/thread/qwaitcondition/tst_qwaitcondition.cpp new file mode 100644 index 0000000000..1bfc637402 --- /dev/null +++ b/tests/benchmarks/corelib/thread/qwaitcondition/tst_qwaitcondition.cpp @@ -0,0 +1,210 @@ +/**************************************************************************** +** +** 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. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, 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. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtCore/QtCore> +#include <QtTest/QtTest> + +#include <math.h> + + +class tst_QWaitCondition : public QObject +{ + Q_OBJECT + +public: + tst_QWaitCondition() + { + } + +private slots: + void oscillate_data(); + void oscillate(); + + void thrash_data(); + void thrash(); + +public: + static QWaitCondition local, remote; + enum Turn {LocalTurn, RemoteTurn}; + static Turn turn; +}; + +QWaitCondition tst_QWaitCondition::local; +QWaitCondition tst_QWaitCondition::remote; +tst_QWaitCondition::Turn tst_QWaitCondition::turn = tst_QWaitCondition::LocalTurn; + +class OscillateThread : public QThread +{ +public: + bool m_done; + bool m_useMutex; + unsigned long m_timeout; + bool m_wakeOne; + int count; + + OscillateThread(bool useMutex, unsigned long timeout, bool wakeOne) + : m_done(false), m_useMutex(useMutex), m_timeout(timeout), m_wakeOne(wakeOne) + {} + void run() + { + QMutex mtx; + QReadWriteLock rwl; + count = 0; + + forever { + if (m_done) + break; + if (m_useMutex) { + mtx.lock(); + while (tst_QWaitCondition::turn == tst_QWaitCondition::LocalTurn) + tst_QWaitCondition::remote.wait(&mtx, m_timeout); + mtx.unlock(); + } else { + rwl.lockForWrite(); + while (tst_QWaitCondition::turn == tst_QWaitCondition::LocalTurn) + tst_QWaitCondition::remote.wait(&rwl, m_timeout); + rwl.unlock(); + } + tst_QWaitCondition::turn = tst_QWaitCondition::LocalTurn; + if (m_wakeOne) + tst_QWaitCondition::local.wakeOne(); + else + tst_QWaitCondition::local.wakeAll(); + count++; + } + } +}; + +void tst_QWaitCondition::oscillate_data() +{ + QTest::addColumn<bool>("useMutex"); + QTest::addColumn<unsigned long>("timeout"); + QTest::addColumn<bool>("wakeOne"); + + QTest::newRow("mutex, timeout, one") << true << 1000ul << true; + QTest::newRow("readWriteLock, timeout, one") << false << 1000ul << true; + QTest::newRow("mutex, timeout, all") << true << 1000ul << false; + QTest::newRow("readWriteLock, timeout, all") << false << 1000ul << false; + QTest::newRow("mutex, forever, one") << true << ULONG_MAX << true; + QTest::newRow("readWriteLock, forever, one") << false << ULONG_MAX << true; + QTest::newRow("mutex, forever, all") << true << ULONG_MAX << false; + QTest::newRow("readWriteLock, forever, all") << false << ULONG_MAX << false; +} + +void tst_QWaitCondition::oscillate() +{ + QMutex mtx; + QReadWriteLock rwl; + + QFETCH(bool, useMutex); + QFETCH(unsigned long, timeout); + QFETCH(bool, wakeOne); + + turn = LocalTurn; + OscillateThread thrd(useMutex, timeout, wakeOne); + thrd.start(); + + QBENCHMARK { + if (useMutex) + mtx.lock(); + else + rwl.lockForWrite(); + turn = RemoteTurn; + if (wakeOne) + remote.wakeOne(); + else + remote.wakeAll(); + if (useMutex) { + while (turn == RemoteTurn) + local.wait(&mtx, timeout); + mtx.unlock(); + } else { + while (turn == RemoteTurn) + local.wait(&rwl, timeout); + rwl.unlock(); + } + } + + thrd.m_done = true; + remote.wakeAll(); + thrd.wait(); + + QCOMPARE(0, 0); +} + +void tst_QWaitCondition::thrash_data() +{ + oscillate_data(); +} + +void tst_QWaitCondition::thrash() +{ + QMutex mtx; + mtx.lock(); + + QFETCH(bool, useMutex); + QFETCH(unsigned long, timeout); + QFETCH(bool, wakeOne); + + turn = LocalTurn; + OscillateThread thrd(useMutex, timeout, wakeOne); + thrd.start(); + local.wait(&mtx, 1000ul); + mtx.unlock(); + + QBENCHMARK { + turn = RemoteTurn; + if (wakeOne) + remote.wakeOne(); + else + remote.wakeAll(); + } + + thrd.m_done = true; + turn = RemoteTurn; + remote.wakeAll(); + thrd.wait(); + + QCOMPARE(0, 0); +} + +QTEST_MAIN(tst_QWaitCondition) +#include "tst_qwaitcondition.moc" |