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#
# mutex_m.rb -
# $Release Version: 3.0$
# $Revision: 1.7 $
# Original from mutex.rb
# by Keiju ISHITSUKA(keiju@ishitsuka.com)
# modified by matz
# patched by akira yamada
#
# --
require 'thread'
# = mutex_m.rb
#
# 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
#
module Mutex_m
def Mutex_m.define_aliases(cl) # :nodoc:
cl.module_eval %q{
alias locked? mu_locked?
alias lock mu_lock
alias unlock mu_unlock
alias try_lock mu_try_lock
alias synchronize mu_synchronize
}
end
def Mutex_m.append_features(cl) # :nodoc:
super
define_aliases(cl) unless cl.instance_of?(Module)
end
def Mutex_m.extend_object(obj) # :nodoc:
super
obj.mu_extended
end
def mu_extended # :nodoc:
unless (defined? locked? and
defined? lock and
defined? unlock and
defined? try_lock and
defined? synchronize)
Mutex_m.define_aliases(singleton_class)
end
mu_initialize
end
# See Mutex#synchronize
def mu_synchronize(&block)
@_mutex.synchronize(&block)
end
# See Mutex#locked?
def mu_locked?
@_mutex.locked?
end
# See Mutex#try_lock
def mu_try_lock
@_mutex.try_lock
end
# See Mutex#lock
def mu_lock
@_mutex.lock
end
# See Mutex#unlock
def mu_unlock
@_mutex.unlock
end
# See Mutex#sleep
def sleep(timeout = nil)
@_mutex.sleep(timeout)
end
private
def mu_initialize # :nodoc:
@_mutex = Mutex.new
end
def initialize(*args) # :nodoc:
mu_initialize
super
end
end