    # File lib/phusion_passenger/utils.rb, line 470
            def safe_fork(current_location = self.class, double_fork = false)
                    pid = fork
                    if pid.nil?
                            has_exception = false
                            begin
                                    if double_fork
                                            pid2 = fork
                                            if pid2.nil?
                                                    srand
                                                    yield
                                            end
                                    else
                                            srand
                                            yield
                                    end
                            rescue Exception => e
                                    has_exception = true
                                    print_exception(current_location.to_s, e)
                            ensure
                                    exit!(has_exception ? 1 : 0)
                            end
                    else
                            if double_fork
                                    Process.waitpid(pid) rescue nil
                                    return pid
                            else
                                    return pid
                            end
                    end
            end