friend void swap()

in dispenso/concurrent_object_arena.h [274:299]

• 21 lines of code
• 1 McCabe index (conditional complexity)

  friend void swap(
      ConcurrentObjectArena<T, Index, alignment>& lhs,
      ConcurrentObjectArena<T, Index, alignment>& rhs) noexcept {
    using std::swap;

    swap(lhs.kLog2BuffSize, rhs.kLog2BuffSize);
    swap(lhs.kBufferSize, rhs.kBufferSize);
    swap(lhs.kMask, rhs.kMask);

    const Index rhs_pos = rhs.pos_.load(std::memory_order_relaxed);
    rhs.pos_.store(lhs.pos_.load(std::memory_order_relaxed), std::memory_order_relaxed);
    lhs.pos_.store(rhs_pos, std::memory_order_relaxed);

    const Index rhs_allocatedSize = rhs.allocatedSize_.load(std::memory_order_relaxed);
    rhs.allocatedSize_.store(
        lhs.allocatedSize_.load(std::memory_order_relaxed), std::memory_order_relaxed);
    lhs.allocatedSize_.store(rhs_allocatedSize, std::memory_order_relaxed);

    T** const rhs_buffers = rhs.buffers_.load(std::memory_order_relaxed);
    rhs.buffers_.store(lhs.buffers_.load(std::memory_order_relaxed), std::memory_order_relaxed);
    lhs.buffers_.store(rhs_buffers, std::memory_order_relaxed);

    swap(lhs.buffersSize_, rhs.buffersSize_);
    swap(lhs.buffersPos_, rhs.buffersPos_);
    swap(lhs.deleteLater_, rhs.deleteLater_);
  }