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Diffstat (limited to 'trunk/lib/mutex_m.rb')
-rw-r--r-- | trunk/lib/mutex_m.rb | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/trunk/lib/mutex_m.rb b/trunk/lib/mutex_m.rb new file mode 100644 index 0000000000..f46f866fa5 --- /dev/null +++ b/trunk/lib/mutex_m.rb @@ -0,0 +1,91 @@ +# +# 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 +# +# -- +# Usage: +# require "mutex_m.rb" +# obj = Object.new +# obj.extend Mutex_m +# ... +# extended object can be handled like Mutex +# or +# class Foo +# include Mutex_m +# ... +# end +# obj = Foo.new +# this obj can be handled like Mutex +# + +require 'thread' + +module Mutex_m + def Mutex_m.define_aliases(cl) + 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) + super + define_aliases(cl) unless cl.instance_of?(Module) + end + + def Mutex_m.extend_object(obj) + super + obj.mu_extended + end + + def mu_extended + unless (defined? locked? and + defined? lock and + defined? unlock and + defined? try_lock and + defined? synchronize) + Mutex_m.define_aliases(class<<self;self;end) + end + mu_initialize + end + + # locking + def mu_synchronize(&block) + @_mutex.synchronize(&block) + end + + def mu_locked? + @_mutex.locked? + end + + def mu_try_lock + @_mutex.try_lock + end + + def mu_lock + @_mutex.lock + end + + def mu_unlock + @_mutex.unlock + end + + private + + def mu_initialize + @_mutex = Mutex.new + end + + def initialize(*args) + mu_initialize + super + end +end |