锁层次结构

这个 Rust 包提供了对锁层次结构违规的调试断言。发布构建不会产生运行时开销或保护。

用法

use lock_hierarchy::Mutex;

let mutex_a = Mutex::new(()); // Level 0
let mutex_b = Mutex::with_level((), 0); // also level 0
// Fine, first mutex in thread
let _guard_a = mutex_a.lock().unwrap();
// Must panic, lock hierarchy violation
let _guard_b = mutex_b.lock().unwrap();

use lock_hierarchy::Mutex;

let mutex_a = Mutex::with_level((), 1); // Level 1
let mutex_b = Mutex::new(()); // level 0
// Fine, first mutex in thread
let _guard_a = mutex_a.lock().unwrap();
// Fine: 0 is lower level than 1
let _guard_b = mutex_b.lock().unwrap();

lib.rs:

此包提供对锁层次结构违规的调试断言。发布构建不会产生运行时开销或保护。