Method get_next_read_buffer

src/vector/vdebug.cpp:593–597

    }

    Buffer* get_next_read_buffer()
    {
        SpinLock spinlock(m_flag);
        return m_buffers.empty() ? nullptr : m_buffers.front().get();
    }

private:
    std::queue<std::unique_ptr<Buffer> > m_buffers;