def murder_workers(self):
        """\
        Kill unused/idle workers
        """
        if not self.timeout:
            return
        workers = list(self.WORKERS.items())
        for (pid, worker) in workers:
            try:
                if time.time() - worker.tmp.last_update() <= self.timeout:
                    continue
            except (OSError, ValueError):
                continue

            if not worker.aborted:
                self.log.critical("WORKER TIMEOUT (pid:%s)", pid)
                worker.aborted = True
                self.kill_worker(pid, signal.SIGABRT)
            else:
                self.kill_worker(pid, signal.SIGKILL)
dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/gunicorn/arbiter.py/Arbiter.murder_workers/original