Mastering Rust - Second Edition

Mutex

When safe mutable access to a shared resource is required, the access can be provided by the use of mutex. Mutex is a portmanteau for mutual exclusion, a widely used synchronization primitive for ensuring that a piece of code is executed by only one thread at a time. A mutex in general is a guard object which a thread acquires to protect data that is meant to be shared or modified by multiple threads. It works by prohibiting access to a value from more than one thread at a time by locking the value. If one of the threads has a lock on the mutex type, no other thread can run the same code until the thread that holds the lock is done with it.

The std::sync module from the standard library contains the Mutex type allowing one to mutate ...