| Module | Mutex_m |
| In: |
mutex_m.rb
|
mutex_m.rb -
$Release Version: 3.0$
$Revision: 1.7 $
$Date: 1998/02/27 04:28:57 $
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
# File mutex_m.rb, line 38 def Mutex_m.append_features(cl) super define_aliases(cl) unless cl.instance_of?(Module) end
# File mutex_m.rb, line 28 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
# File mutex_m.rb, line 48 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
# File mutex_m.rb, line 84 def mu_lock while (Thread.critical = true; @mu_locked) @mu_waiting.push Thread.current Thread.stop end @mu_locked = true Thread.critical = false self end
# File mutex_m.rb, line 73 def mu_try_lock result = false Thread.critical = true unless @mu_locked @mu_locked = true result = true end Thread.critical = false result end