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      1 ---
      2 title: "Exercise: Spinlock"
      3 tags: [exercise, rust, concurrency, memory-safety]
      4 ---
      5 
      6 A from-scratch implementation of a [spinlock](memory_safety/spinlock.md) in Rust
      7 using atomics and `UnsafeCell`. The goal is to understand how a mutex works at
      8 the lowest level — without relying on the OS scheduler.
      9 
     10 > [!info] Source Code:
     11 > [exercises/spinlock/src/main.rs](https://github.com/ling0x/notes/blob/main/content/exercises/spinlock/src/main.rs)