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# Mutex
class Mutex
def synchronize
self.lock
begin
yield
ensure
self.unlock rescue nil
end
end
end
# Thread
class Thread
MUTEX_FOR_THREAD_EXCLUSIVE = Mutex.new
def self.exclusive
MUTEX_FOR_THREAD_EXCLUSIVE.synchronize{
yield
}
end
end
module Kernel
module_function
def require_relative(relative_feature)
c = caller.first
e = c.rindex(/:\d+:in /)
file = $`
if /\A\((.*)\)/ =~ file # eval, etc.
raise LoadError, "require_relative is called in #{$1}"
end
absolute_feature = File.expand_path(File.join(File.dirname(file), relative_feature))
require absolute_feature
end
end
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