<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel><title>RMW on 技术笔记</title><link>https://deguiliu.github.io/tech-notes/tags/rmw/</link><description>Recent content in RMW on 技术笔记</description><generator>Hugo -- 0.168.0</generator><language>zh-cn</language><lastBuildDate>Tue, 22 Sep 2026 08:00:00 +0000</lastBuildDate><atom:link href="https://deguiliu.github.io/tech-notes/tags/rmw/index.xml" rel="self" type="application/rss+xml"/><item><title>MCU 周期服务的共享状态: 读改写原子性、拒绝重入与锁的位置</title><link>https://deguiliu.github.io/tech-notes/posts/practice/mcu_periodic_service_concurrency/</link><pubDate>Tue, 22 Sep 2026 08:00:00 +0000</pubDate><guid>https://deguiliu.github.io/tech-notes/posts/practice/mcu_periodic_service_concurrency/</guid><description>在「一个工作线程 + 多个命令入口 + 共享状态」的 MCU 服务里，偶发缺陷大多来自三处：读改写被别的线程插进来、派发过程被重入、锁散落在各个分支里。本文给出三个低成本的收敛办法，并用两种写法的代码指标做对照。</description></item></channel></rss>