require 'timeout' class AccessDenied < StandardError; end def lock(&block) # 10秒以内に終わらない場合はAccessDenied例外が発生 Timeout::timeout(10) do open(File.join(Dir.tmpdir, 'my-application.lock'), 'w') do |f| begin f.flock(File::LOCK_EX) block.call ensure f.flock(File::LOCK_UN) end end end rescue Exception => ex raise AccessDenied.new('timeout') end Register as a new user and use Qiita more conveniently You ge
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