双buffer 无锁设计：https://cloud.tencent.com/developer/article/1784339
https://bbs.huaweicloud.com/blogs/324161
https://segmentfault.com/a/1190000018686156
https://www.codercto.com/a/109754.html
https://bot-man-jl.github.io/articles/?post=2020/Lock-Free-Double-Buffer
https://www.ccppcoding.com/archives/189
https://km.woa.com/group/30274/articles/show/393138?kmref=search&from_page=1&no=1
https://km.woa.com/group/906/articles/show/370866?kmref=search&from_page=1&no=2
https://km.woa.com/articles/show/511360?kmref=search&from_page=1&no=3