Method signal_handler

openevolve/controller.py:339–350

(signum, frame)

            # Set up signal handlers for graceful shutdown
            def signal_handler(signum, frame):
                logger.info(f"Received signal {signum}, initiating graceful shutdown...")
                self.parallel_controller.request_shutdown()

                # Set up a secondary handler for immediate exit if user presses Ctrl+C again
                def force_exit_handler(signum, frame):
                    logger.info("Force exit requested - terminating immediately")
                    import sys

                    sys.exit(0)

                signal.signal(signal.SIGINT, force_exit_handler)

            signal.signal(signal.SIGINT, signal_handler)
            signal.signal(signal.SIGTERM, signal_handler)