From 8bd768718e1efddfb543d73e5bf05958c9aa8d21 Mon Sep 17 00:00:00 2001 From: 666ghj <670939375@qq.com> Date: Tue, 30 Dec 2025 15:28:20 +0800 Subject: [PATCH] Add SIGHUP signal handling in SimulationRunner for Unix systems --- backend/app/services/simulation_runner.py | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/backend/app/services/simulation_runner.py b/backend/app/services/simulation_runner.py index b1eaf45..cae12d9 100644 --- a/backend/app/services/simulation_runner.py +++ b/backend/app/services/simulation_runner.py @@ -1270,6 +1270,11 @@ class SimulationRunner: # 保存原有的信号处理器 original_sigint = signal.getsignal(signal.SIGINT) original_sigterm = signal.getsignal(signal.SIGTERM) + # SIGHUP 只在 Unix 系统存在（macOS/Linux），Windows 没有 + original_sighup = None + has_sighup = hasattr(signal, 'SIGHUP') + if has_sighup: + original_sighup = signal.getsignal(signal.SIGHUP) def cleanup_handler(signum=None, frame=None): """信号处理器：先清理模拟进程，再调用原处理器""" @@ -1283,6 +1288,13 @@ class SimulationRunner: original_sigint(signum, frame) elif signum == signal.SIGTERM and callable(original_sigterm): original_sigterm(signum, frame) + elif has_sighup and signum == signal.SIGHUP: + # SIGHUP: 终端关闭时发送 + if callable(original_sighup): + original_sighup(signum, frame) + else: + # 默认行为：正常退出 + sys.exit(0) else: # 如果原处理器不可调用（如 SIG_DFL），则使用默认行为 raise KeyboardInterrupt @@ -1296,6 +1308,9 @@ class SimulationRunner: signal.signal(signal.SIGTERM, cleanup_handler) # SIGINT: Ctrl+C signal.signal(signal.SIGINT, cleanup_handler) + # SIGHUP: 终端关闭（仅 Unix 系统） + if has_sighup: + signal.signal(signal.SIGHUP, cleanup_handler) except ValueError: # 不在主线程中，只能使用 atexit logger.warning("无法注册信号处理器（不在主线程），仅使用 atexit")