A mutex is a lockable object that is designed to signal when critical sections of code need exclusive access, preventing other threads with the same protection from executing concurrently and access the same memory locations.

mutex objects provide exclusive ownership and do not support recursivity (i.e., a thread shall not lock a mutex it already owns) -- see recursive_mutex for an alternative class that does.

It is guaranteed to be a standard-layout class.

Member types

Member functions

(constructor)

Construct mutex (public member function )

lock

Lock mutex (public member function )

try_lock

Lock mutex if not locked (public member function )

unlock

Unlock mutex (public member function )

native_handle

Get native handle (public member function )

并发，互斥，锁。草稿