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When 'mutex_m' is required, any object that extends or includes Mutex_m will be treated like a Mutex.
Start by requiring the standard library Mutex_m:
require "mutex_m.rb"
From here you can extend an object with Mutex instance methods:
obj = Object.new obj.extend Mutex_m
Or mixin Mutex_m into your module to your class inherit Mutex instance methods.
class Foo include Mutex_m # ... end obj = Foo.new # this obj can be handled like Mutex
See Mutex#lock
 
               # File mutex_m.rb, line 87
def mu_lock
  @_mutex.lock
end
             
            See Mutex#locked?
 
               # File mutex_m.rb, line 77
def mu_locked?
  @_mutex.locked?
end
             
            See Mutex#synchronize
 
               # File mutex_m.rb, line 72
def mu_synchronize(&block)
  @_mutex.synchronize(&block)
end
             
            See Mutex#try_lock
 
               # File mutex_m.rb, line 82
def mu_try_lock
  @_mutex.try_lock
end