diff options
Diffstat (limited to 'tests/auto/corelib/thread/qthreadpool/tst_qthreadpool.cpp')
-rw-r--r-- | tests/auto/corelib/thread/qthreadpool/tst_qthreadpool.cpp | 65 |
1 files changed, 58 insertions, 7 deletions
diff --git a/tests/auto/corelib/thread/qthreadpool/tst_qthreadpool.cpp b/tests/auto/corelib/thread/qthreadpool/tst_qthreadpool.cpp index 9c2c8bf12a..c9fdb4b718 100644 --- a/tests/auto/corelib/thread/qthreadpool/tst_qthreadpool.cpp +++ b/tests/auto/corelib/thread/qthreadpool/tst_qthreadpool.cpp @@ -1,7 +1,7 @@ /**************************************************************************** ** -** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/legal +** Copyright (C) 2015 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ ** ** This file is part of the test suite of the Qt Toolkit. ** @@ -10,9 +10,9 @@ ** 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 Digia. For licensing terms and -** conditions see http://qt.digia.com/licensing. For further information -** use the contact form at http://qt.digia.com/contact-us. +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see http://www.qt.io/terms-conditions. For further +** information use the contact form at http://www.qt.io/contact-us. ** ** GNU Lesser General Public License Usage ** Alternatively, this file may be used under the terms of the GNU Lesser @@ -23,8 +23,8 @@ ** requirements will be met: https://www.gnu.org/licenses/lgpl.html and ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** -** In addition, as a special exception, Digia gives you certain additional -** rights. These rights are described in the Digia Qt LGPL Exception +** As a special exception, The Qt Company gives you certain additional +** rights. These rights are described in The Qt Company LGPL Exception ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** ** $QT_END_LICENSE$ @@ -92,6 +92,7 @@ private slots: void priorityStart(); void waitForDone(); void clear(); + void cancel(); void waitForDoneTimeout(); void destroyingWaitsForTasksToFinish(); void stressTest(); @@ -958,6 +959,56 @@ void tst_QThreadPool::clear() QCOMPARE(count.load(), threadPool.maxThreadCount()); } +void tst_QThreadPool::cancel() +{ + QSemaphore sem(0); + class BlockingRunnable : public QRunnable + { + public: + QSemaphore & sem; + int & dtorCounter; + int & runCounter; + int dummy; + BlockingRunnable(QSemaphore & s, int & c, int & r) : sem(s), dtorCounter(c), runCounter(r){} + ~BlockingRunnable(){dtorCounter++;} + void run() + { + runCounter++; + sem.acquire(); + count.ref(); + } + }; + typedef BlockingRunnable* BlockingRunnablePtr; + + QThreadPool threadPool; + threadPool.setMaxThreadCount(3); + int runs = 2 * threadPool.maxThreadCount(); + BlockingRunnablePtr* runnables = new BlockingRunnablePtr[runs]; + count.store(0); + int dtorCounter = 0; + int runCounter = 0; + for (int i = 0; i < runs; i++) { + runnables[i] = new BlockingRunnable(sem, dtorCounter, runCounter); + runnables[i]->setAutoDelete(i != 0 && i != (runs-1)); //one which will run and one which will not + threadPool.cancel(runnables[i]); //verify NOOP for jobs not in the queue + threadPool.start(runnables[i]); + } + for (int i = 0; i < runs; i++) { + threadPool.cancel(runnables[i]); + } + runnables[0]->dummy = 0; //valgrind will catch this if cancel() is crazy enough to delete currently running jobs + runnables[runs-1]->dummy = 0; + QCOMPARE(dtorCounter, runs-threadPool.maxThreadCount()-1); + sem.release(threadPool.maxThreadCount()); + threadPool.waitForDone(); + QCOMPARE(runCounter, threadPool.maxThreadCount()); + QCOMPARE(count.load(), threadPool.maxThreadCount()); + QCOMPARE(dtorCounter, runs-2); + delete runnables[0]; //if the pool deletes them then we'll get double-free crash + delete runnables[runs-1]; + delete[] runnables; +} + void tst_QThreadPool::destroyingWaitsForTasksToFinish() { QTime total, pass; |