Function lockForegroundMutexInternal

kdevplatform/util/foregroundlock.cpp:26–37

volatile int recursion = 0;

void lockForegroundMutexInternal()
{
    if (holderThread == QThread::currentThread()) {
        // We already have the mutex
        ++recursion;
    } else {
        internalMutex.lock();
        Q_ASSERT(recursion == 0 && holderThread == nullptr);
        holderThread = QThread::currentThread();
        recursion = 1;
    }
}

bool tryLockForegroundMutexInternal(int interval = 0)
{