| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the test suite of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:GPL-EXCEPT$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
| ** a written agreement between you and The Qt Company. For licensing terms |
| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include <QtTest/QtTest> |
| |
| #include <QCoreApplication> |
| #include <QWriteLocker> |
| #include <QSemaphore> |
| #include <QThread> |
| |
| class tst_QWriteLockerThread : public QThread |
| { |
| public: |
| QReadWriteLock lock; |
| QSemaphore semaphore, testSemaphore; |
| |
| void waitForTest() |
| { |
| semaphore.release(); |
| testSemaphore.acquire(); |
| } |
| }; |
| |
| class tst_QWriteLocker : public QObject |
| { |
| Q_OBJECT |
| |
| public: |
| tst_QWriteLockerThread *thread; |
| |
| void waitForThread() |
| { |
| thread->semaphore.acquire(); |
| } |
| void releaseThread() |
| { |
| thread->testSemaphore.release(); |
| } |
| |
| private slots: |
| void scopeTest(); |
| void unlockAndRelockTest(); |
| void lockerStateTest(); |
| }; |
| |
| void tst_QWriteLocker::scopeTest() |
| { |
| class ScopeTestThread : public tst_QWriteLockerThread |
| { |
| public: |
| void run() |
| { |
| waitForTest(); |
| |
| { |
| QWriteLocker locker(&lock); |
| waitForTest(); |
| } |
| |
| waitForTest(); |
| } |
| }; |
| |
| thread = new ScopeTestThread; |
| thread->start(); |
| |
| waitForThread(); |
| // lock should be unlocked before entering the scope that creates the QWriteLocker |
| QVERIFY(thread->lock.tryLockForWrite()); |
| thread->lock.unlock(); |
| releaseThread(); |
| |
| waitForThread(); |
| // lock should be locked by the QWriteLocker |
| QVERIFY(!thread->lock.tryLockForWrite()); |
| releaseThread(); |
| |
| waitForThread(); |
| // lock should be unlocked when the QWriteLocker goes out of scope |
| QVERIFY(thread->lock.tryLockForWrite()); |
| thread->lock.unlock(); |
| releaseThread(); |
| |
| QVERIFY(thread->wait()); |
| |
| delete thread; |
| thread = 0; |
| } |
| |
| |
| void tst_QWriteLocker::unlockAndRelockTest() |
| { |
| class UnlockAndRelockThread : public tst_QWriteLockerThread |
| { |
| public: |
| void run() |
| { |
| QWriteLocker locker(&lock); |
| |
| waitForTest(); |
| |
| locker.unlock(); |
| |
| waitForTest(); |
| |
| locker.relock(); |
| |
| waitForTest(); |
| } |
| }; |
| |
| thread = new UnlockAndRelockThread; |
| thread->start(); |
| |
| waitForThread(); |
| // lock should be locked by the QWriteLocker |
| QVERIFY(!thread->lock.tryLockForWrite()); |
| releaseThread(); |
| |
| waitForThread(); |
| // lock has been explicitly unlocked via QWriteLocker |
| QVERIFY(thread->lock.tryLockForWrite()); |
| thread->lock.unlock(); |
| releaseThread(); |
| |
| waitForThread(); |
| // lock has been explicitly relocked via QWriteLocker |
| QVERIFY(!thread->lock.tryLockForWrite()); |
| releaseThread(); |
| |
| QVERIFY(thread->wait()); |
| |
| delete thread; |
| thread = 0; |
| } |
| |
| void tst_QWriteLocker::lockerStateTest() |
| { |
| class LockerStateThread : public tst_QWriteLockerThread |
| { |
| public: |
| void run() |
| { |
| { |
| QWriteLocker locker(&lock); |
| locker.relock(); |
| locker.unlock(); |
| |
| waitForTest(); |
| } |
| |
| waitForTest(); |
| } |
| }; |
| |
| thread = new LockerStateThread; |
| thread->start(); |
| |
| waitForThread(); |
| // even though we relock() after creating the QWriteLocker, it shouldn't lock the lock more than once |
| QVERIFY(thread->lock.tryLockForWrite()); |
| thread->lock.unlock(); |
| releaseThread(); |
| |
| waitForThread(); |
| // if we call QWriteLocker::unlock(), its destructor should do nothing |
| QVERIFY(thread->lock.tryLockForWrite()); |
| thread->lock.unlock(); |
| releaseThread(); |
| |
| QVERIFY(thread->wait()); |
| |
| delete thread; |
| thread = 0; |
| } |
| |
| QTEST_MAIN(tst_QWriteLocker) |
| #include "tst_qwritelocker.moc" |