Thread mutex lock and return value

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Hi,

I have this situation:
One thread class that needs to protect a QQueue but also needs to return dequeued value.

bool myThread::getResult()
{
  m_qMutex.lock();
  return m_qQueue.dequeue();
  m_qMutex.unlock();    //This will never be executed because of return statment, and will cause a deadlock
}

bool myThread::getResult()
{
  m_qMutex.lock();
  return m_qQueue.dequeue();
  m_qMutex.unlock();    //This will never be executed because of return statment, and will cause a deadlock
}

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So, how can I do this in a correct way. One solution is to get the mutex of the thread from the caller object and lock and unlock there but I want to know if there is a more elegant solution.

Thanks,