RaiiMutexGood2.cpp

class CustomScopedLock {
public:
  CustomScopedLock(std::mutex &m) : m_(m) {
    std::cout << "CustomScopedLock locking mutex..." << std::endl;
    m_.lock();
    std::cout << "CustomScopedLock has locked mutex!" << std::endl;
  };

  ~CustomScopedLock() {
    m_.unlock();
    std::cout << "CustomScopedLock has unlocked mutex" << std::endl;
  };

private:
  std::mutex &m_;
};

void lockMutexCustomScopeLock(bool shouldThrow) {
  CustomScopedLock lock(globalMutex);

  if (shouldThrow) {
    std::cout << "Throwing exception" << std::endl;
    throw 1;
  }
}

void lockMutexCustomScopeLock() {
  try {
    lockMutexCustomScopeLock(true);
  } catch (...) {
    std::cout << "Caught exception" << std::endl;
  }
  lockMutexCustomScopeLock(false);
}