C++ QAtomicInt::testAndSetRelaxed方法代码示例

本文整理汇总了C++中QAtomicInt::testAndSetRelaxed方法的典型用法代码示例。如果您正苦于以下问题：C++ QAtomicInt::testAndSetRelaxed方法的具体用法？C++ QAtomicInt::testAndSetRelaxed怎么用？C++ QAtomicInt::testAndSetRelaxed使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QAtomicInt的用法示例。

在下文中一共展示了QAtomicInt::testAndSetRelaxed方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: run

            void run()
            {
                testsTurn.release();

                threadsTurn.acquire();
                QVERIFY(!recursiveMutex.tryLock());
                testsTurn.release();

                threadsTurn.acquire();
                QVERIFY(recursiveMutex.tryLock());
                QVERIFY(lockCount.testAndSetRelaxed(0, 1));
                QVERIFY(recursiveMutex.tryLock());
                QVERIFY(lockCount.testAndSetRelaxed(1, 2));
                QVERIFY(lockCount.testAndSetRelaxed(2, 1));
                recursiveMutex.unlock();
                QVERIFY(lockCount.testAndSetRelaxed(1, 0));
                recursiveMutex.unlock();
                testsTurn.release();

                threadsTurn.acquire();
                QTime timer;
                timer.start();
                QVERIFY(!recursiveMutex.tryLock(waitTime));
                QVERIFY(timer.elapsed() >= waitTime);
                QVERIFY(!recursiveMutex.tryLock(0));
                testsTurn.release();

                threadsTurn.acquire();
                timer.start();
                QVERIFY(recursiveMutex.tryLock(waitTime));
                QVERIFY(timer.elapsed() <= waitTime);
                QVERIFY(lockCount.testAndSetRelaxed(0, 1));
                QVERIFY(recursiveMutex.tryLock(waitTime));
                QVERIFY(lockCount.testAndSetRelaxed(1, 2));
                QVERIFY(lockCount.testAndSetRelaxed(2, 1));
                recursiveMutex.unlock();
                QVERIFY(lockCount.testAndSetRelaxed(1, 0));
                recursiveMutex.unlock();
                testsTurn.release();

                threadsTurn.acquire();
                QVERIFY(!recursiveMutex.tryLock(0));
                QVERIFY(!recursiveMutex.tryLock(0));
                testsTurn.release();

                threadsTurn.acquire();
                timer.start();
                QVERIFY(recursiveMutex.tryLock(0));
                QVERIFY(timer.elapsed() < waitTime);
                QVERIFY(lockCount.testAndSetRelaxed(0, 1));
                QVERIFY(recursiveMutex.tryLock(0));
                QVERIFY(lockCount.testAndSetRelaxed(1, 2));
                QVERIFY(lockCount.testAndSetRelaxed(2, 1));
                recursiveMutex.unlock();
                QVERIFY(lockCount.testAndSetRelaxed(1, 0));
                recursiveMutex.unlock();
                testsTurn.release();

                threadsTurn.acquire();
            }

开发者ID:SchleunigerAG，项目名称:WinEC7_Qt5.3.1_Fixes，代码行数:60，代码来源:tst_qmutex.cpp

示例2: run

            void run()
            {
                testsTurn.release();

                threadsTurn.acquire();
                if (readWriteLock.tryLockForWrite())
                    failureCount++;
                testsTurn.release();

                threadsTurn.acquire();
                if (!readWriteLock.tryLockForWrite())
                    failureCount++;
                if (!lockCount.testAndSetRelaxed(0, 1))
                    failureCount++;
                if (!lockCount.testAndSetRelaxed(1, 0))
                    failureCount++;
                readWriteLock.unlock();
                testsTurn.release();

                threadsTurn.acquire();
                if (readWriteLock.tryLockForWrite(1000))
                    failureCount++;
                testsTurn.release();

                threadsTurn.acquire();
                if (!readWriteLock.tryLockForWrite(1000))
                    failureCount++;
                if (!lockCount.testAndSetRelaxed(0, 1))
                    failureCount++;
                if (!lockCount.testAndSetRelaxed(1, 0))
                    failureCount++;
                readWriteLock.unlock();
                testsTurn.release();

                threadsTurn.acquire();
            }

开发者ID:RS102839，项目名称:qt，代码行数:36，代码来源:tst_qreadwritelock.cpp

示例3: tryLock

void tst_QMutex::tryLock()
{
    // test non-recursive mutex
    {
        class Thread : public QThread
        {
        public:
            void run()
            {
                testsTurn.release();

                // TEST 1: thread can't acquire lock
                threadsTurn.acquire();
                QVERIFY(!normalMutex.tryLock());
                testsTurn.release();

                // TEST 2: thread can acquire lock
                threadsTurn.acquire();
                QVERIFY(normalMutex.tryLock());
                QVERIFY(lockCount.testAndSetRelaxed(0, 1));
                QVERIFY(!normalMutex.tryLock());
                QVERIFY(lockCount.testAndSetRelaxed(1, 0));
                normalMutex.unlock();
                testsTurn.release();

                // TEST 3: thread can't acquire lock, timeout = waitTime
                threadsTurn.acquire();
                QTime timer;
                timer.start();
                QVERIFY(!normalMutex.tryLock(waitTime));
                QVERIFY(timer.elapsed() >= waitTime);
                testsTurn.release();

                // TEST 4: thread can acquire lock, timeout = waitTime
                threadsTurn.acquire();
                timer.start();
                QVERIFY(normalMutex.tryLock(waitTime));
                QVERIFY(timer.elapsed() <= waitTime);
                QVERIFY(lockCount.testAndSetRelaxed(0, 1));
                timer.start();
                // it's non-recursive, so the following lock needs to fail
                QVERIFY(!normalMutex.tryLock(waitTime));
                QVERIFY(timer.elapsed() >= waitTime);
                QVERIFY(lockCount.testAndSetRelaxed(1, 0));
                normalMutex.unlock();
                testsTurn.release();

                // TEST 5: thread can't acquire lock, timeout = 0
                threadsTurn.acquire();
                QVERIFY(!normalMutex.tryLock(0));
                testsTurn.release();

                // TEST 6: thread can acquire lock, timeout = 0
                threadsTurn.acquire();
                timer.start();
                QVERIFY(normalMutex.tryLock(0));
                QVERIFY(timer.elapsed() < waitTime);
                QVERIFY(lockCount.testAndSetRelaxed(0, 1));
                QVERIFY(!normalMutex.tryLock(0));
                QVERIFY(lockCount.testAndSetRelaxed(1, 0));
                normalMutex.unlock();
                testsTurn.release();

                // TEST 7 overflow: thread can acquire lock, timeout = 3000 (QTBUG-24795)
                threadsTurn.acquire();
                timer.start();
                QVERIFY(normalMutex.tryLock(3000));
                QVERIFY(timer.elapsed() < 3000);
                normalMutex.unlock();
                testsTurn.release();

                threadsTurn.acquire();
            }
        };

        Thread thread;
        thread.start();

        // TEST 1: thread can't acquire lock
        testsTurn.acquire();
        normalMutex.lock();
        QVERIFY(lockCount.testAndSetRelaxed(0, 1));
        threadsTurn.release();

        // TEST 2: thread can acquire lock
        testsTurn.acquire();
        QVERIFY(lockCount.testAndSetRelaxed(1, 0));
        normalMutex.unlock();
        threadsTurn.release();

        // TEST 3: thread can't acquire lock, timeout = waitTime
        testsTurn.acquire();
        normalMutex.lock();
        QVERIFY(lockCount.testAndSetRelaxed(0, 1));
        threadsTurn.release();

        // TEST 4: thread can acquire lock, timeout = waitTime
        testsTurn.acquire();
        QVERIFY(lockCount.testAndSetRelaxed(1, 0));
        normalMutex.unlock();
//.........这里部分代码省略.........

开发者ID:SchleunigerAG，项目名称:WinEC7_Qt5.3.1_Fixes，代码行数:101，代码来源:tst_qmutex.cpp

示例4: tryReadLock

void tst_QReadWriteLock::tryReadLock()
{
    QReadWriteLock rwlock;
    QVERIFY(rwlock.tryLockForRead());
    rwlock.unlock();
    QVERIFY(rwlock.tryLockForRead());
    rwlock.unlock();

    rwlock.lockForRead();
    rwlock.lockForRead();
    QVERIFY(rwlock.tryLockForRead());
    rwlock.unlock();
    rwlock.unlock();
    rwlock.unlock();

    rwlock.lockForWrite();
    QVERIFY(!rwlock.tryLockForRead());
    rwlock.unlock();

    // functionality test
    {
        class Thread : public QThread
        {
        public:
            void run()
            {
                testsTurn.release();

                threadsTurn.acquire();
                QVERIFY(!readWriteLock.tryLockForRead());
                testsTurn.release();

                threadsTurn.acquire();
                QVERIFY(readWriteLock.tryLockForRead());
                lockCount.ref();
                QVERIFY(readWriteLock.tryLockForRead());
                lockCount.ref();
                lockCount.deref();
                readWriteLock.unlock();
                lockCount.deref();
                readWriteLock.unlock();
                testsTurn.release();

                threadsTurn.acquire();
                QTime timer;
                timer.start();
                QVERIFY(!readWriteLock.tryLockForRead(1000));
                QVERIFY(timer.elapsed() >= 1000);
                testsTurn.release();

                threadsTurn.acquire();
                timer.start();
                QVERIFY(readWriteLock.tryLockForRead(1000));
                QVERIFY(timer.elapsed() <= 1000);
                lockCount.ref();
                QVERIFY(readWriteLock.tryLockForRead(1000));
                lockCount.ref();
                lockCount.deref();
                readWriteLock.unlock();
                lockCount.deref();
                readWriteLock.unlock();
                testsTurn.release();

                threadsTurn.acquire();
            }
        };

        Thread thread;
        thread.start();

        testsTurn.acquire();
        readWriteLock.lockForWrite();
        QVERIFY(lockCount.testAndSetRelaxed(0, 1));
        threadsTurn.release();

        testsTurn.acquire();
        QVERIFY(lockCount.testAndSetRelaxed(1, 0));
        readWriteLock.unlock();
        threadsTurn.release();

        testsTurn.acquire();
        readWriteLock.lockForWrite();
        QVERIFY(lockCount.testAndSetRelaxed(0, 1));
        threadsTurn.release();

        testsTurn.acquire();
        QVERIFY(lockCount.testAndSetRelaxed(1, 0));
        readWriteLock.unlock();
        threadsTurn.release();

        // stop thread
        testsTurn.acquire();
        threadsTurn.release();
        thread.wait();
    }
}

开发者ID:RS102839，项目名称:qt，代码行数:96，代码来源:tst_qreadwritelock.cpp

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