/lib/proxy/file_lock.rb - Smart Proxy - Foreman

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root/lib/proxy/file_lock.rb @ 5f7fd34c

       module Proxy
         module FileLock
           class << self
             def try_locking(afile)
               f = File.open(afile, File::RDWR|File::CREAT, 0644)
               return f if f.flock(File::LOCK_EX | File::LOCK_NB) == 0
               f.close
               nil
             end
             def unlock(handle)
               handle.close
             end
           end
         end
       end

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