mutex

A lock that lets only one thread at a time use the data inside it.

Mutex owns its data; lock() blocks until it's free and returns a MutexGuard that gives access and unlocks when dropped. If a holder panics, the mutex is poisoned.

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Examples

*tally.lock().unwrap() += 1; on a Mutex<i32> adds one while holding the lock, and releases it at the end of that statement.