Method Swap

be/src/common/atomic.h:141–143

Store 'new_val' and return the previous value. Implies a Release memory barrier (i.e. the same as Store()).

  /// Store 'new_val' and return the previous value. Implies a Release memory barrier
  /// (i.e. the same as Store()).
  ALWAYS_INLINE T* Swap(T* val) {
    return reinterpret_cast<T*>(ptr_.Swap(reinterpret_cast<intptr_t>(val)));
  }
 private:
  internal::AtomicInt<intptr_t> ptr_;
};