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author | Lars Knoll <lars.knoll@nokia.com> | 2009-03-23 09:18:55 (GMT) |
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committer | Simon Hausmann <simon.hausmann@nokia.com> | 2009-03-23 09:18:55 (GMT) |
commit | e5fcad302d86d316390c6b0f62759a067313e8a9 (patch) | |
tree | c2afbf6f1066b6ce261f14341cf6d310e5595bc1 /tests/auto/qsemaphore/tst_qsemaphore.cpp | |
download | Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.zip Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.tar.gz Qt-e5fcad302d86d316390c6b0f62759a067313e8a9.tar.bz2 |
Long live Qt 4.5!
Diffstat (limited to 'tests/auto/qsemaphore/tst_qsemaphore.cpp')
-rw-r--r-- | tests/auto/qsemaphore/tst_qsemaphore.cpp | 403 |
1 files changed, 403 insertions, 0 deletions
diff --git a/tests/auto/qsemaphore/tst_qsemaphore.cpp b/tests/auto/qsemaphore/tst_qsemaphore.cpp new file mode 100644 index 0000000..adab8a7 --- /dev/null +++ b/tests/auto/qsemaphore/tst_qsemaphore.cpp @@ -0,0 +1,403 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + + +#include <QtTest/QtTest> + + +#include <qcoreapplication.h> +#include <qthread.h> +#include <qsemaphore.h> + +//TESTED_CLASS= +//TESTED_FILES= + +class tst_QSemaphore : public QObject +{ + Q_OBJECT + +public: + tst_QSemaphore(); + ~tst_QSemaphore(); + +private slots: + void acquire(); + void tryAcquire(); + void tryAcquireWithTimeout_data(); + void tryAcquireWithTimeout(); + void release(); + void available(); + void producerConsumer(); +}; + +static QSemaphore *semaphore = 0; + +tst_QSemaphore::tst_QSemaphore() +{ } + +tst_QSemaphore::~tst_QSemaphore() +{ } + +class ThreadOne : public QThread +{ +public: + ThreadOne() {} + +protected: + void run() + { + int i = 0; + while ( i < 100 ) { + semaphore->acquire(); + i++; + semaphore->release(); + } + } +}; + +class ThreadN : public QThread +{ + int N; + +public: + ThreadN(int n) :N(n) { } + +protected: + void run() + { + int i = 0; + while ( i < 100 ) { + semaphore->acquire(N); + i++; + semaphore->release(N); + } + } +}; + +void tst_QSemaphore::acquire() +{ + { + // old incrementOne() test + QVERIFY(!semaphore); + semaphore = new QSemaphore; + // make some "thing" available + semaphore->release(); + + ThreadOne t1; + ThreadOne t2; + + t1.start(); + t2.start(); + + QVERIFY(t1.wait(4000)); + QVERIFY(t2.wait(4000)); + + delete semaphore; + semaphore = 0; + } + + // old incrementN() test + { + QVERIFY(!semaphore); + semaphore = new QSemaphore; + // make 4 "things" available + semaphore->release(4); + + ThreadN t1(2); + ThreadN t2(3); + + t1.start(); + t2.start(); + + QVERIFY(t1.wait(4000)); + QVERIFY(t2.wait(4000)); + + delete semaphore; + semaphore = 0; + } + + QSemaphore semaphore; + + QCOMPARE(semaphore.available(), 0); + semaphore.release(); + QCOMPARE(semaphore.available(), 1); + semaphore.release(); + QCOMPARE(semaphore.available(), 2); + semaphore.release(10); + QCOMPARE(semaphore.available(), 12); + semaphore.release(10); + QCOMPARE(semaphore.available(), 22); + + semaphore.acquire(); + QCOMPARE(semaphore.available(), 21); + semaphore.acquire(); + QCOMPARE(semaphore.available(), 20); + semaphore.acquire(10); + QCOMPARE(semaphore.available(), 10); + semaphore.acquire(10); + QCOMPARE(semaphore.available(), 0); +} + +void tst_QSemaphore::tryAcquire() +{ + QSemaphore semaphore; + + QCOMPARE(semaphore.available(), 0); + + semaphore.release(); + QCOMPARE(semaphore.available(), 1); + QVERIFY(!semaphore.tryAcquire(2)); + QCOMPARE(semaphore.available(), 1); + + semaphore.release(); + QCOMPARE(semaphore.available(), 2); + QVERIFY(!semaphore.tryAcquire(3)); + QCOMPARE(semaphore.available(), 2); + + semaphore.release(10); + QCOMPARE(semaphore.available(), 12); + QVERIFY(!semaphore.tryAcquire(100)); + QCOMPARE(semaphore.available(), 12); + + semaphore.release(10); + QCOMPARE(semaphore.available(), 22); + QVERIFY(!semaphore.tryAcquire(100)); + QCOMPARE(semaphore.available(), 22); + + QVERIFY(semaphore.tryAcquire()); + QCOMPARE(semaphore.available(), 21); + + QVERIFY(semaphore.tryAcquire()); + QCOMPARE(semaphore.available(), 20); + + QVERIFY(semaphore.tryAcquire(10)); + QCOMPARE(semaphore.available(), 10); + + QVERIFY(semaphore.tryAcquire(10)); + QCOMPARE(semaphore.available(), 0); + + // should not be able to acquire more + QVERIFY(!semaphore.tryAcquire()); + QCOMPARE(semaphore.available(), 0); + + QVERIFY(!semaphore.tryAcquire()); + QCOMPARE(semaphore.available(), 0); + + QVERIFY(!semaphore.tryAcquire(10)); + QCOMPARE(semaphore.available(), 0); + + QVERIFY(!semaphore.tryAcquire(10)); + QCOMPARE(semaphore.available(), 0); +} + +void tst_QSemaphore::tryAcquireWithTimeout_data() +{ + QTest::addColumn<int>("timeout"); + + QTest::newRow("") << 1000; + QTest::newRow("") << 10000; +} + +void tst_QSemaphore::tryAcquireWithTimeout() +{ + QFETCH(int, timeout); + + QSemaphore semaphore; + QTime time; + + + QCOMPARE(semaphore.available(), 0); + + semaphore.release(); + QCOMPARE(semaphore.available(), 1); + time.start(); + QVERIFY(!semaphore.tryAcquire(2, timeout)); + QVERIFY(time.elapsed() >= timeout); + QCOMPARE(semaphore.available(), 1); + + semaphore.release(); + QCOMPARE(semaphore.available(), 2); + time.start(); + QVERIFY(!semaphore.tryAcquire(3, timeout)); + QVERIFY(time.elapsed() >= timeout); + QCOMPARE(semaphore.available(), 2); + + semaphore.release(10); + QCOMPARE(semaphore.available(), 12); + time.start(); + QVERIFY(!semaphore.tryAcquire(100, timeout)); + QVERIFY(time.elapsed() >= timeout); + QCOMPARE(semaphore.available(), 12); + + semaphore.release(10); + QCOMPARE(semaphore.available(), 22); + time.start(); + QVERIFY(!semaphore.tryAcquire(100, timeout)); + QVERIFY(time.elapsed() >= timeout); + QCOMPARE(semaphore.available(), 22); + + time.start(); + QVERIFY(semaphore.tryAcquire(1, timeout)); + QVERIFY(time.elapsed() <= timeout); + QCOMPARE(semaphore.available(), 21); + + time.start(); + QVERIFY(semaphore.tryAcquire(1, timeout)); + QVERIFY(time.elapsed() <= timeout); + QCOMPARE(semaphore.available(), 20); + + time.start(); + QVERIFY(semaphore.tryAcquire(10, timeout)); + QVERIFY(time.elapsed() <= timeout); + QCOMPARE(semaphore.available(), 10); + + time.start(); + QVERIFY(semaphore.tryAcquire(10, timeout)); + QVERIFY(time.elapsed() <= timeout); + QCOMPARE(semaphore.available(), 0); + + // should not be able to acquire more + time.start(); + QVERIFY(!semaphore.tryAcquire(1, timeout)); + QVERIFY(time.elapsed() >= timeout); + QCOMPARE(semaphore.available(), 0); + + time.start(); + QVERIFY(!semaphore.tryAcquire(1, timeout)); + QVERIFY(time.elapsed() >= timeout); + QCOMPARE(semaphore.available(), 0); + + time.start(); + QVERIFY(!semaphore.tryAcquire(10, timeout)); + QVERIFY(time.elapsed() >= timeout); + QCOMPARE(semaphore.available(), 0); + + time.start(); + QVERIFY(!semaphore.tryAcquire(10, timeout)); + QVERIFY(time.elapsed() >= timeout); + QCOMPARE(semaphore.available(), 0); +} + +void tst_QSemaphore::release() +{ DEPENDS_ON("acquire"); } + +void tst_QSemaphore::available() +{ DEPENDS_ON("acquire"); } + +const char alphabet[] = "ACGTH"; +const int AlphabetSize = sizeof(alphabet) - 1; + +const int BufferSize = 4096; // GCD of BufferSize and alphabet size must be 1 +char buffer[BufferSize]; + +#ifndef Q_OS_WINCE +const int ProducerChunkSize = 3; +const int ConsumerChunkSize = 7; +const int Multiplier = 10; +#else +const int ProducerChunkSize = 2; +const int ConsumerChunkSize = 5; +const int Multiplier = 3; +#endif + +// note: the code depends on the fact that DataSize is a multiple of +// ProducerChunkSize, ConsumerChunkSize, and BufferSize +const int DataSize = ProducerChunkSize * ConsumerChunkSize * BufferSize * Multiplier; + +QSemaphore freeSpace(BufferSize); +QSemaphore usedSpace; + +class Producer : public QThread +{ +public: + void run(); +}; + +void Producer::run() +{ + for (int i = 0; i < DataSize; ++i) { + freeSpace.acquire(); + buffer[i % BufferSize] = alphabet[i % AlphabetSize]; + usedSpace.release(); + } + for (int i = 0; i < DataSize; ++i) { + if ((i % ProducerChunkSize) == 0) + freeSpace.acquire(ProducerChunkSize); + buffer[i % BufferSize] = alphabet[i % AlphabetSize]; + if ((i % ProducerChunkSize) == (ProducerChunkSize - 1)) + usedSpace.release(ProducerChunkSize); + } +} + +class Consumer : public QThread +{ +public: + void run(); +}; + +void Consumer::run() +{ + for (int i = 0; i < DataSize; ++i) { + usedSpace.acquire(); + QCOMPARE(buffer[i % BufferSize], alphabet[i % AlphabetSize]); + freeSpace.release(); + } + for (int i = 0; i < DataSize; ++i) { + if ((i % ConsumerChunkSize) == 0) + usedSpace.acquire(ConsumerChunkSize); + QCOMPARE(buffer[i % BufferSize], alphabet[i % AlphabetSize]); + if ((i % ConsumerChunkSize) == (ConsumerChunkSize - 1)) + freeSpace.release(ConsumerChunkSize); + } +} + +void tst_QSemaphore::producerConsumer() +{ + Producer producer; + Consumer consumer; + producer.start(); + consumer.start(); + producer.wait(); + consumer.wait(); +} + +QTEST_MAIN(tst_QSemaphore) +#include "tst_qsemaphore.moc" |