This is the API documentation for mutex_m: Ruby Standard Library Documentation.
MMutex_m
::append_features (Mutex_m)
::define_aliases (Mutex_m)
::extend_object (Mutex_m)
::new (Mutex_m)
#mu_extended (Mutex_m)
#mu_lock (Mutex_m)
#mu_locked? (Mutex_m)
#mu_synchronize (Mutex_m)
#mu_try_lock (Mutex_m)
#mu_unlock (Mutex_m)