diff options
Diffstat (limited to 'tests/auto/corelib/thread/qatomicint/tst_qatomicint.cpp')
| -rw-r--r-- | tests/auto/corelib/thread/qatomicint/tst_qatomicint.cpp | 791 |
1 files changed, 791 insertions, 0 deletions
diff --git a/tests/auto/corelib/thread/qatomicint/tst_qatomicint.cpp b/tests/auto/corelib/thread/qatomicint/tst_qatomicint.cpp new file mode 100644 index 0000000000..27a2cc2e9c --- /dev/null +++ b/tests/auto/corelib/thread/qatomicint/tst_qatomicint.cpp @@ -0,0 +1,791 @@ +/**************************************************************************** +** +** 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. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** 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. +** +** 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. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + + +#include <QtTest/QtTest> + +#include <QAtomicInt> +#include <QCoreApplication> + +#include <limits.h> + +//TESTED_CLASS= +//TESTED_FILES= + +class tst_QAtomicInt : public QObject +{ + Q_OBJECT + +public: + tst_QAtomicInt(); + ~tst_QAtomicInt(); + +private slots: + void warningFree(); + + // QAtomicInt members + void constructor_data(); + void constructor(); + void copy_constructor_data(); + void copy_constructor(); + void equality_operator_data(); + void equality_operator(); + void inequality_operator_data(); + void inequality_operator(); + void not_operator_data(); + void not_operator(); + void cast_operator_data(); + void cast_operator(); + void assignment_operator_data(); + void assignment_operator(); + + void isReferenceCountingNative(); + void isReferenceCountingWaitFree(); + void ref_data(); + void ref(); + void deref_data(); + void deref(); + + void isTestAndSetNative(); + void isTestAndSetWaitFree(); + void testAndSet_data(); + void testAndSet(); + + void isFetchAndStoreNative(); + void isFetchAndStoreWaitFree(); + void fetchAndStore_data(); + void fetchAndStore(); + + void isFetchAndAddNative(); + void isFetchAndAddWaitFree(); + void fetchAndAdd_data(); + void fetchAndAdd(); + + // stress tests + void testAndSet_loop(); + void fetchAndAdd_loop(); + void fetchAndAdd_threadedLoop(); + +private: + static void warningFreeHelper(); +}; + +tst_QAtomicInt::tst_QAtomicInt() +{ } + +tst_QAtomicInt::~tst_QAtomicInt() +{ } + +void tst_QAtomicInt::warningFreeHelper() +{ + qFatal("This code is bogus, and shouldn't be run. We're looking for compiler warnings only."); + + QBasicAtomicInt i = Q_BASIC_ATOMIC_INITIALIZER(0); + + int expectedValue = 0; + int newValue = 0; + int valueToAdd = 0; + + i.ref(); + i.deref(); + + i.testAndSetRelaxed(expectedValue, newValue); + i.testAndSetAcquire(expectedValue, newValue); + i.testAndSetRelease(expectedValue, newValue); + i.testAndSetOrdered(expectedValue, newValue); + + i.fetchAndStoreRelaxed(newValue); + i.fetchAndStoreAcquire(newValue); + i.fetchAndStoreRelease(newValue); + i.fetchAndStoreOrdered(newValue); + + i.fetchAndAddRelaxed(valueToAdd); + i.fetchAndAddAcquire(valueToAdd); + i.fetchAndAddRelease(valueToAdd); + i.fetchAndAddOrdered(valueToAdd); +} + +void tst_QAtomicInt::warningFree() +{ + // This is a compile time check for warnings. + // No need for actual work here. + + void (*foo)() = &warningFreeHelper; + (void)foo; +} + +void tst_QAtomicInt::constructor_data() +{ + QTest::addColumn<int>("value"); + + QTest::newRow("0") << 31337; + QTest::newRow("1") << 0; + QTest::newRow("2") << 1; + QTest::newRow("3") << -1; + QTest::newRow("4") << 2; + QTest::newRow("5") << -2; + QTest::newRow("6") << 3; + QTest::newRow("7") << -3; + QTest::newRow("8") << INT_MAX; + QTest::newRow("9") << INT_MIN+1; +} + +void tst_QAtomicInt::constructor() +{ + QFETCH(int, value); + QAtomicInt atomic1(value); + QCOMPARE(int(atomic1), value); + QAtomicInt atomic2 = value; + QCOMPARE(int(atomic2), value); +} + +void tst_QAtomicInt::copy_constructor_data() +{ constructor_data(); } + +void tst_QAtomicInt::copy_constructor() +{ + QFETCH(int, value); + QAtomicInt atomic1(value); + QCOMPARE(int(atomic1), value); + + QAtomicInt atomic2(atomic1); + QCOMPARE(int(atomic2), value); + QAtomicInt atomic3 = atomic1; + QCOMPARE(int(atomic3), value); + QAtomicInt atomic4(atomic2); + QCOMPARE(int(atomic4), value); + QAtomicInt atomic5 = atomic2; + QCOMPARE(int(atomic5), value); +} + +void tst_QAtomicInt::equality_operator_data() +{ + QTest::addColumn<int>("value1"); + QTest::addColumn<int>("value2"); + QTest::addColumn<int>("result"); + + QTest::newRow("success0") << 1 << 1 << 1; + QTest::newRow("success1") << -1 << -1 << 1; + QTest::newRow("failure0") << 0 << 1 << 0; + QTest::newRow("failure1") << 1 << 0 << 0; + QTest::newRow("failure2") << 0 << -1 << 0; + QTest::newRow("failure3") << -1 << 0 << 0; +} + +void tst_QAtomicInt::equality_operator() +{ + QFETCH(int, value1); + QFETCH(int, value2); + QAtomicInt x = value1; + QTEST(x == value2 ? 1 : 0, "result"); +} + +void tst_QAtomicInt::inequality_operator_data() +{ + QTest::addColumn<int>("value1"); + QTest::addColumn<int>("value2"); + QTest::addColumn<int>("result"); + + QTest::newRow("failure0") << 1 << 1 << 0; + QTest::newRow("failure1") << -1 << -1 << 0; + QTest::newRow("success0") << 0 << 1 << 1; + QTest::newRow("success1") << 1 << 0 << 1; + QTest::newRow("success2") << 0 << -1 << 1; + QTest::newRow("success3") << -1 << 0 << 1; +} + +void tst_QAtomicInt::inequality_operator() +{ + QFETCH(int, value1); + QFETCH(int, value2); + QAtomicInt x = value1; + QTEST(x != value2 ? 1 : 0, "result"); +} + +void tst_QAtomicInt::not_operator_data() +{ constructor_data(); } + +void tst_QAtomicInt::not_operator() +{ + QFETCH(int, value); + QAtomicInt atomic = value; + QCOMPARE(!atomic, !value); +} + +void tst_QAtomicInt::cast_operator_data() +{ constructor_data(); } + +void tst_QAtomicInt::cast_operator() +{ + QFETCH(int, value); + QAtomicInt atomic = value; + int copy = atomic; + QCOMPARE(copy, value); +} + +void tst_QAtomicInt::assignment_operator_data() +{ + QTest::addColumn<int>("value"); + QTest::addColumn<int>("newval"); + + QTest::newRow("value0") << 0 << 1; + QTest::newRow("value1") << 1 << 0; + QTest::newRow("value2") << 0 << -1; + QTest::newRow("value3") << -1 << 0; + QTest::newRow("value4") << -1 << 1; + QTest::newRow("value5") << 1 << -1; +} + +void tst_QAtomicInt::assignment_operator() +{ + QFETCH(int, value); + QFETCH(int, newval); + + { + QAtomicInt atomic1 = value; + atomic1 = newval; + QCOMPARE(int(atomic1), newval); + atomic1 = value; + QCOMPARE(int(atomic1), value); + QAtomicInt atomic2 = newval; + atomic1 = atomic2; + QCOMPARE(atomic1, atomic2); + } +} + +void tst_QAtomicInt::isReferenceCountingNative() +{ +#if defined(Q_ATOMIC_INT_REFERENCE_COUNTING_IS_ALWAYS_NATIVE) + // the runtime test should say the same thing + QVERIFY(QAtomicInt::isReferenceCountingNative()); + +# if (defined(Q_ATOMIC_INT_REFERENCE_COUNTING_IS_SOMETIMES_NATIVE) \ + || defined(Q_ATOMIC_INT_REFERENCE_COUNTING_IS_NOT_NATIVE)) +# error "Define only one of Q_ATOMIC_INT_REFERENCE_COUNTING_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE" +# endif +#elif defined(Q_ATOMIC_INT_REFERENCE_COUNTING_IS_SOMETIMES_NATIVE) + // could be either, just want to make sure the function is implemented + QVERIFY(QAtomicInt::isReferenceCountingNative() || !QAtomicInt::isReferenceCountingNative()); + +# if (defined(Q_ATOMIC_INT_REFERENCE_COUNTING_IS_ALWAYS_NATIVE) \ + || defined(Q_ATOMIC_INT_REFERENCE_COUNTING_IS_NOT_NATIVE)) +# error "Define only one of Q_ATOMIC_INT_REFERENCE_COUNTING_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE" +# endif +#elif defined(Q_ATOMIC_INT_REFERENCE_COUNTING_IS_NOT_NATIVE) + // the runtime test should say the same thing + QVERIFY(!QAtomicInt::isReferenceCountingNative()); + +# if (defined(Q_ATOMIC_INT_REFERENCE_COUNTING_IS_ALWAYS_NATIVE) \ + || defined(Q_ATOMIC_INT_REFERENCE_COUNTING_IS_SOMETIMES_NATIVE)) +# error "Define only one of Q_ATOMIC_INT_REFERENCE_COUNTING_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE" +# endif +#else +# error "Q_ATOMIC_INT_REFERENCE_COUNTING_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE is not defined" +#endif +} + +void tst_QAtomicInt::isReferenceCountingWaitFree() +{ +#if defined(Q_ATOMIC_INT_REFERENCE_COUNTING_IS_WAIT_FREE) + // the runtime test should say the same thing + QVERIFY(QAtomicInt::isReferenceCountingWaitFree()); + + // enforce some invariants + QVERIFY(QAtomicInt::isReferenceCountingNative()); +# if defined(Q_ATOMIC_INT_REFERENCE_COUNTING_IS_NOT_NATIVE) +# error "Reference counting cannot be wait-free and unsupported at the same time!" +# endif +#else + // the runtime test should say the same thing + QVERIFY(!QAtomicInt::isReferenceCountingWaitFree()); +#endif +} + +void tst_QAtomicInt::ref_data() +{ + QTest::addColumn<int>("value"); + QTest::addColumn<int>("result"); + QTest::addColumn<int>("expected"); + + QTest::newRow("data0") << 0 << 1 << 1; + QTest::newRow("data1") << -1 << 0 << 0; + QTest::newRow("data2") << 1 << 1 << 2; +} + +void tst_QAtomicInt::ref() +{ + QFETCH(int, value); + QAtomicInt x = value; + QTEST(x.ref() ? 1 : 0, "result"); + QTEST(int(x), "expected"); +} + +void tst_QAtomicInt::deref_data() +{ + QTest::addColumn<int>("value"); + QTest::addColumn<int>("result"); + QTest::addColumn<int>("expected"); + + QTest::newRow("data0") << 0 << 1 << -1; + QTest::newRow("data1") << 1 << 0 << 0; + QTest::newRow("data2") << 2 << 1 << 1; +} + +void tst_QAtomicInt::deref() +{ + QFETCH(int, value); + QAtomicInt x = value; + QTEST(x.deref() ? 1 : 0, "result"); + QTEST(int(x), "expected"); +} + +void tst_QAtomicInt::isTestAndSetNative() +{ +#if defined(Q_ATOMIC_INT_TEST_AND_SET_IS_ALWAYS_NATIVE) + // the runtime test should say the same thing + QVERIFY(QAtomicInt::isTestAndSetNative()); + +# if (defined(Q_ATOMIC_INT_TEST_AND_SET_IS_SOMETIMES_NATIVE) \ + || defined(Q_ATOMIC_INT_TEST_AND_SET_IS_NOT_NATIVE)) +# error "Define only one of Q_ATOMIC_INT_TEST_AND_SET_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE" +# endif +#elif defined(Q_ATOMIC_INT_TEST_AND_SET_IS_SOMETIMES_NATIVE) + // could be either, just want to make sure the function is implemented + QVERIFY(QAtomicInt::isTestAndSetNative() || !QAtomicInt::isTestAndSetNative()); + +# if (defined(Q_ATOMIC_INT_TEST_AND_SET_IS_ALWAYS_NATIVE) \ + || defined(Q_ATOMIC_INT_TEST_AND_SET_IS_NOT_NATIVE)) +# error "Define only one of Q_ATOMIC_INT_TEST_AND_SET_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE" +# endif +#elif defined(Q_ATOMIC_INT_TEST_AND_SET_IS_NOT_NATIVE) + // the runtime test should say the same thing + QVERIFY(!QAtomicInt::isTestAndSetNative()); + +# if (defined(Q_ATOMIC_INT_TEST_AND_SET_IS_ALWAYS_NATIVE) \ + || defined(Q_ATOMIC_INT_TEST_AND_SET_IS_SOMETIMES_NATIVE)) +# error "Define only one of Q_ATOMIC_INT_TEST_AND_SET_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE" +# endif +#else +# error "Q_ATOMIC_INT_TEST_AND_SET_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE is not defined" +#endif +} + +void tst_QAtomicInt::isTestAndSetWaitFree() +{ +#if defined(Q_ATOMIC_INT_TEST_AND_SET_IS_WAIT_FREE) + // the runtime test should say the same thing + QVERIFY(QAtomicInt::isTestAndSetWaitFree()); + + // enforce some invariants + QVERIFY(QAtomicInt::isTestAndSetNative()); +# if defined(Q_ATOMIC_INT_TEST_AND_SET_IS_NOT_NATIVE) +# error "Reference counting cannot be wait-free and unsupported at the same time!" +# endif +#else + // the runtime test should say the same thing + QVERIFY(!QAtomicInt::isTestAndSetWaitFree()); +#endif +} + +void tst_QAtomicInt::testAndSet_data() +{ + QTest::addColumn<int>("value"); + QTest::addColumn<int>("expected"); + QTest::addColumn<int>("newval"); + QTest::addColumn<int>("result"); + + // these should succeed + QTest::newRow("success0") << 0 << 0 << 0 << 1; + QTest::newRow("success1") << 0 << 0 << 1 << 1; + QTest::newRow("success2") << 0 << 0 << -1 << 1; + QTest::newRow("success3") << 1 << 1 << 0 << 1; + QTest::newRow("success4") << 1 << 1 << 1 << 1; + QTest::newRow("success5") << 1 << 1 << -1 << 1; + QTest::newRow("success6") << -1 << -1 << 0 << 1; + QTest::newRow("success7") << -1 << -1 << 1 << 1; + QTest::newRow("success8") << -1 << -1 << -1 << 1; + QTest::newRow("success9") << INT_MIN+1 << INT_MIN+1 << INT_MIN+1 << 1; + QTest::newRow("successA") << INT_MIN+1 << INT_MIN+1 << 1 << 1; + QTest::newRow("successB") << INT_MIN+1 << INT_MIN+1 << -1 << 1; + QTest::newRow("successC") << INT_MAX << INT_MAX << INT_MAX << 1; + QTest::newRow("successD") << INT_MAX << INT_MAX << 1 << 1; + QTest::newRow("successE") << INT_MAX << INT_MAX << -1 << 1; + + // these should fail + QTest::newRow("failure0") << 0 << 1 << ~0 << 0; + QTest::newRow("failure1") << 0 << -1 << ~0 << 0; + QTest::newRow("failure2") << 1 << 0 << ~0 << 0; + QTest::newRow("failure3") << -1 << 0 << ~0 << 0; + QTest::newRow("failure4") << 1 << -1 << ~0 << 0; + QTest::newRow("failure5") << -1 << 1 << ~0 << 0; + QTest::newRow("failure6") << INT_MIN+1 << INT_MAX << ~0 << 0; + QTest::newRow("failure7") << INT_MAX << INT_MIN+1 << ~0 << 0; +} + +void tst_QAtomicInt::testAndSet() +{ + QFETCH(int, value); + QFETCH(int, expected); + QFETCH(int, newval); + + { + QAtomicInt atomic = value; + QTEST(atomic.testAndSetRelaxed(expected, newval) ? 1 : 0, "result"); + } + + { + QAtomicInt atomic = value; + QTEST(atomic.testAndSetAcquire(expected, newval) ? 1 : 0, "result"); + } + + { + QAtomicInt atomic = value; + QTEST(atomic.testAndSetRelease(expected, newval) ? 1 : 0, "result"); + } + + { + QAtomicInt atomic = value; + QTEST(atomic.testAndSetOrdered(expected, newval) ? 1 : 0, "result"); + } +} + +void tst_QAtomicInt::isFetchAndStoreNative() +{ +#if defined(Q_ATOMIC_INT_FETCH_AND_STORE_IS_ALWAYS_NATIVE) + // the runtime test should say the same thing + QVERIFY(QAtomicInt::isFetchAndStoreNative()); + +# if (defined(Q_ATOMIC_INT_FETCH_AND_STORE_IS_SOMETIMES_NATIVE) \ + || defined(Q_ATOMIC_INT_FETCH_AND_STORE_IS_NOT_NATIVE)) +# error "Define only one of Q_ATOMIC_INT_FETCH_AND_STORE_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE" +# endif +#elif defined(Q_ATOMIC_INT_FETCH_AND_STORE_IS_SOMETIMES_NATIVE) + // could be either, just want to make sure the function is implemented + QVERIFY(QAtomicInt::isFetchAndStoreNative() || !QAtomicInt::isFetchAndStoreNative()); + +# if (defined(Q_ATOMIC_INT_FETCH_AND_STORE_IS_ALWAYS_NATIVE) \ + || defined(Q_ATOMIC_INT_FETCH_AND_STORE_IS_NOT_NATIVE)) +# error "Define only one of Q_ATOMIC_INT_FETCH_AND_STORE_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE" +# endif +#elif defined(Q_ATOMIC_INT_FETCH_AND_STORE_IS_NOT_NATIVE) + // the runtime test should say the same thing + QVERIFY(!QAtomicInt::isFetchAndStoreNative()); + +# if (defined(Q_ATOMIC_INT_FETCH_AND_STORE_IS_ALWAYS_NATIVE) \ + || defined(Q_ATOMIC_INT_FETCH_AND_STORE_IS_SOMETIMES_NATIVE)) +# error "Define only one of Q_ATOMIC_INT_FETCH_AND_STORE_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE" +# endif +#else +# error "Q_ATOMIC_INT_FETCH_AND_STORE_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE is not defined" +#endif +} + +void tst_QAtomicInt::isFetchAndStoreWaitFree() +{ +#if defined(Q_ATOMIC_INT_FETCH_AND_STORE_IS_WAIT_FREE) + // the runtime test should say the same thing + QVERIFY(QAtomicInt::isFetchAndStoreWaitFree()); + + // enforce some invariants + QVERIFY(QAtomicInt::isFetchAndStoreNative()); +# if defined(Q_ATOMIC_INT_FETCH_AND_STORE_IS_NOT_NATIVE) +# error "Reference counting cannot be wait-free and unsupported at the same time!" +# endif +#else + // the runtime test should say the same thing + QVERIFY(!QAtomicInt::isFetchAndStoreWaitFree()); +#endif +} + +void tst_QAtomicInt::fetchAndStore_data() +{ + QTest::addColumn<int>("value"); + QTest::addColumn<int>("newval"); + + QTest::newRow("data0") << 0 << 1; + QTest::newRow("data1") << 1 << 2; + QTest::newRow("data2") << 3 << 8; +} + +void tst_QAtomicInt::fetchAndStore() +{ + QFETCH(int, value); + QFETCH(int, newval); + + { + QAtomicInt atomic = value; + QCOMPARE(atomic.fetchAndStoreRelaxed(newval), value); + QCOMPARE(int(atomic), newval); + } + + { + QAtomicInt atomic = value; + QCOMPARE(atomic.fetchAndStoreAcquire(newval), value); + QCOMPARE(int(atomic), newval); + } + + { + QAtomicInt atomic = value; + QCOMPARE(atomic.fetchAndStoreRelease(newval), value); + QCOMPARE(int(atomic), newval); + } + + { + QAtomicInt atomic = value; + QCOMPARE(atomic.fetchAndStoreOrdered(newval), value); + QCOMPARE(int(atomic), newval); + } +} + +void tst_QAtomicInt::isFetchAndAddNative() +{ +#if defined(Q_ATOMIC_INT_FETCH_AND_ADD_IS_ALWAYS_NATIVE) + // the runtime test should say the same thing + QVERIFY(QAtomicInt::isFetchAndAddNative()); + +# if (defined(Q_ATOMIC_INT_FETCH_AND_ADD_IS_SOMETIMES_NATIVE) \ + || defined(Q_ATOMIC_INT_FETCH_AND_ADD_IS_NOT_NATIVE)) +# error "Define only one of Q_ATOMIC_INT_FETCH_AND_ADD_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE" +# endif +#elif defined(Q_ATOMIC_INT_FETCH_AND_ADD_IS_SOMETIMES_NATIVE) + // could be either, just want to make sure the function is implemented + QVERIFY(QAtomicInt::isFetchAndAddNative() || !QAtomicInt::isFetchAndAddNative()); + +# if (defined(Q_ATOMIC_INT_FETCH_AND_ADD_IS_ALWAYS_NATIVE) \ + || defined(Q_ATOMIC_INT_FETCH_AND_ADD_IS_NOT_NATIVE)) +# error "Define only one of Q_ATOMIC_INT_FETCH_AND_ADD_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE" +# endif +#elif defined(Q_ATOMIC_INT_FETCH_AND_ADD_IS_NOT_NATIVE) + // the runtime test should say the same thing + QVERIFY(!QAtomicInt::isFetchAndAddNative()); + +# if (defined(Q_ATOMIC_INT_FETCH_AND_ADD_IS_ALWAYS_NATIVE) \ + || defined(Q_ATOMIC_INT_FETCH_AND_ADD_IS_SOMETIMES_NATIVE)) +# error "Define only one of Q_ATOMIC_INT_FETCH_AND_ADD_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE" +# endif +#else +# error "Q_ATOMIC_INT_FETCH_AND_ADD_IS_{ALWAYS,SOMTIMES,NOT}_NATIVE is not defined" +#endif +} + +void tst_QAtomicInt::isFetchAndAddWaitFree() +{ +#if defined(Q_ATOMIC_INT_FETCH_AND_ADD_IS_WAIT_FREE) + // the runtime test should say the same thing + QVERIFY(QAtomicInt::isFetchAndAddWaitFree()); + + // enforce some invariants + QVERIFY(QAtomicInt::isFetchAndAddNative()); +# if defined(Q_ATOMIC_INT_FETCH_AND_ADD_IS_NOT_NATIVE) +# error "Reference counting cannot be wait-free and unsupported at the same time!" +# endif +#else + // the runtime test should say the same thing + QVERIFY(!QAtomicInt::isFetchAndAddWaitFree()); +#endif +} + +void tst_QAtomicInt::fetchAndAdd_data() +{ + QTest::addColumn<int>("value1"); + QTest::addColumn<int>("value2"); + + QTest::newRow("0+1") << 0 << 1; + QTest::newRow("1+0") << 1 << 0; + QTest::newRow("1+2") << 1 << 2; + QTest::newRow("2+1") << 2 << 1; + QTest::newRow("10+21") << 10 << 21; + QTest::newRow("31+40") << 31 << 40; + QTest::newRow("51+62") << 51 << 62; + QTest::newRow("72+81") << 72 << 81; + QTest::newRow("810+721") << 810 << 721; + QTest::newRow("631+540") << 631 << 540; + QTest::newRow("451+362") << 451 << 362; + QTest::newRow("272+181") << 272 << 181; + QTest::newRow("1810+8721") << 1810 << 8721; + QTest::newRow("3631+6540") << 3631 << 6540; + QTest::newRow("5451+4362") << 5451 << 4362; + QTest::newRow("7272+2181") << 7272 << 2181; + + QTest::newRow("0+-1") << 0 << -1; + QTest::newRow("1+0") << 1 << 0; + QTest::newRow("1+-2") << 1 << -2; + QTest::newRow("2+-1") << 2 << -1; + QTest::newRow("10+-21") << 10 << -21; + QTest::newRow("31+-40") << 31 << -40; + QTest::newRow("51+-62") << 51 << -62; + QTest::newRow("72+-81") << 72 << -81; + QTest::newRow("810+-721") << 810 << -721; + QTest::newRow("631+-540") << 631 << -540; + QTest::newRow("451+-362") << 451 << -362; + QTest::newRow("272+-181") << 272 << -181; + QTest::newRow("1810+-8721") << 1810 << -8721; + QTest::newRow("3631+-6540") << 3631 << -6540; + QTest::newRow("5451+-4362") << 5451 << -4362; + QTest::newRow("7272+-2181") << 7272 << -2181; + + QTest::newRow("0+1") << 0 << 1; + QTest::newRow("-1+0") << -1 << 0; + QTest::newRow("-1+2") << -1 << 2; + QTest::newRow("-2+1") << -2 << 1; + QTest::newRow("-10+21") << -10 << 21; + QTest::newRow("-31+40") << -31 << 40; + QTest::newRow("-51+62") << -51 << 62; + QTest::newRow("-72+81") << -72 << 81; + QTest::newRow("-810+721") << -810 << 721; + QTest::newRow("-631+540") << -631 << 540; + QTest::newRow("-451+362") << -451 << 362; + QTest::newRow("-272+181") << -272 << 181; + QTest::newRow("-1810+8721") << -1810 << 8721; + QTest::newRow("-3631+6540") << -3631 << 6540; + QTest::newRow("-5451+4362") << -5451 << 4362; + QTest::newRow("-7272+2181") << -7272 << 2181; +} + +void tst_QAtomicInt::fetchAndAdd() +{ + QFETCH(int, value1); + QFETCH(int, value2); + int result; + + { + QAtomicInt atomic = value1; + result = atomic.fetchAndAddRelaxed(value2); + QCOMPARE(result, value1); + QCOMPARE(int(atomic), value1 + value2); + } + + { + QAtomicInt atomic = value1; + result = atomic.fetchAndAddAcquire(value2); + QCOMPARE(result, value1); + QCOMPARE(int(atomic), value1 + value2); + } + + { + QAtomicInt atomic = value1; + result = atomic.fetchAndAddRelease(value2); + QCOMPARE(result, value1); + QCOMPARE(int(atomic), value1 + value2); + } + + { + QAtomicInt atomic = value1; + result = atomic.fetchAndAddOrdered(value2); + QCOMPARE(result, value1); + QCOMPARE(int(atomic), value1 + value2); + } +} + +void tst_QAtomicInt::testAndSet_loop() +{ + QTime stopWatch; + stopWatch.start(); + + int iterations = 10000000; + + QAtomicInt val=0; + for (int i = 0; i < iterations; ++i) { + QVERIFY(val.testAndSetRelaxed(val, val+1)); + if ((i % 1000) == 999) { + if (stopWatch.elapsed() > 60 * 1000) { + // This test shouldn't run for more than two minutes. + qDebug("Interrupted test after %d iterations (%.2f iterations/sec)", + i, (i * 1000.0) / double(stopWatch.elapsed())); + break; + } + } + } +} + +void tst_QAtomicInt::fetchAndAdd_loop() +{ + int iterations = 10000000; +#if defined (Q_OS_HPUX) + iterations = 1000000; +#endif + + QAtomicInt val=0; + for (int i = 0; i < iterations; ++i) { + const int prev = val.fetchAndAddRelaxed(1); + QCOMPARE(prev, int(val) -1); + } +} + +class FetchAndAddThread : public QThread +{ +public: + void run() + { + + for (int i = 0; i < iterations; ++i) + val->fetchAndAddAcquire(1); + + for (int i = 0; i < iterations; ++i) + val->fetchAndAddAcquire(-1); + + } +QAtomicInt *val; +int iterations; +}; + + +void tst_QAtomicInt::fetchAndAdd_threadedLoop() +{ + QAtomicInt val; + FetchAndAddThread t1; + t1.val = &val; + t1.iterations = 1000000; + + FetchAndAddThread t2; + t2.val = &val; + t2.iterations = 2000000; + + t1.start(); + t2.start(); + t1.wait(); + t2.wait(); + + QCOMPARE(int(val), 0); +} + +QTEST_MAIN(tst_QAtomicInt) +#include "tst_qatomicint.moc" |