C++ (Cpp) ThreadCountUser Examples

Example #1

File: tst_qtconcurrentthreadengine.cpp Project: PNIDigitalMedia/emscripten-qt

void tst_QtConcurrentThreadEngine::threadCount()
{
    const int repeats = 10;
    for (int i = 0; i < repeats; ++i) {
        ThreadCountUser t;
        t.startBlocking();
        QCOMPARE(threads.count(), QThreadPool::globalInstance()->maxThreadCount() + 1); // +1 for the main thread.

        (new ThreadCountUser())->startAsynchronously().waitForFinished();
        QCOMPARE(threads.count(), QThreadPool::globalInstance()->maxThreadCount());
    }

    // Set the finish flag immediately, this should give us one thread only.
    for (int i = 0; i < repeats; ++i) {
        ThreadCountUser t(true /*finishImmediately*/);
        t.startBlocking();
        QCOMPARE(threads.count(), 1);

        (new ThreadCountUser(true /*finishImmediately*/))->startAsynchronously().waitForFinished();
        QCOMPARE(threads.count(), 1);
    }
}

Example #2

void tst_QtConcurrentThreadEngine::threadCount()
{
   //QTBUG-23333: This test is unstable

    const int repeats = 10;
    for (int i = 0; i < repeats; ++i) {
        ThreadCountUser t;
        t.startBlocking();
        int count = threads.count();
        int count_expected = QThreadPool::globalInstance()->maxThreadCount() + 1; // +1 for the main thread.
        if (count != count_expected)
            QEXPECT_FAIL("", "QTBUG-23333", Abort);
        QCOMPARE(count, count_expected);

        (new ThreadCountUser())->startAsynchronously().waitForFinished();
        count = threads.count();
        count_expected = QThreadPool::globalInstance()->maxThreadCount();
        if (count != count_expected)
            QEXPECT_FAIL("", "QTBUG-23333", Abort);
        QCOMPARE(count, count_expected);
    }

    // Set the finish flag immediately, this should give us one thread only.
    for (int i = 0; i < repeats; ++i) {
        ThreadCountUser t(true /*finishImmediately*/);
        t.startBlocking();
        int count = threads.count();
        if (count != 1)
            QEXPECT_FAIL("", "QTBUG-23333", Abort);
        QCOMPARE(count, 1);

        (new ThreadCountUser(true /*finishImmediately*/))->startAsynchronously().waitForFinished();
        count = threads.count();
        if (count != 1)
            QEXPECT_FAIL("", "QTBUG-23333", Abort);
        QCOMPARE(count, 1);
    }
}