Rwlock on rustbiteshttps://www.rustbites.com/tags/rwlock/Recent content in Rwlock on rustbitesHugoenFri, 08 May 2026 17:52:10 +0200125. RwLockWriteGuard::downgrade — Hand a Write Lock Off as a Read, Atomicallyhttps://www.rustbites.com/posts/bite-125/Thu, 07 May 2026 17:00:00 +0100https://www.rustbites.com/posts/bite-125/<p>You took a write lock, updated the data, and now you only want to read. Dropping the write guard and re-acquiring as a reader leaves a window where another writer can slip in. <code>downgrade</code> closes that window.</p>