c++ - 一个拥有Mutex的线程，如何理解这句话？

Question

一个拥有Mutex的线程，如何理解这句话？线程可以拥有Mutex？

Answer 1

mutex is a mechanism for implementing protected access to shared resources.
A thread that owns a Mutex means that only the thread that owns the Mutex can run the critical section protected by the mutex at the same time until the thread releases the mutex.

Answer 2

It is the active thread among all the threads protected by this Mutex.
btw: Mutex is a mutex lock

Answer 3

This should mean that this thread called mutex.lock