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27 lines
1022 B
Python
27 lines
1022 B
Python
from app.monitor import Monitor
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from app.runtime.execution import run_in_threadpool_to_completion
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def init_monitor() -> None:
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"""初始化监控器；复用单例时必须显式开启新的应用 lifespan。"""
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monitor = Monitor.get_existing_instance()
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if monitor is None:
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Monitor()
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return
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if not monitor.lifecycle_closed:
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return
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if not monitor.reopen(timeout=Monitor.RELOAD_STOP_TIMEOUT):
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raise RuntimeError("旧目录监控 owner 未收敛，无法开启新生命周期")
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if not monitor.init(timeout=Monitor.RELOAD_STOP_TIMEOUT):
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raise RuntimeError("目录监控初始化失败")
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async def stop_monitor(timeout: float = Monitor.LIFECYCLE_CLOSE_TIMEOUT) -> bool:
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"""在线程池里永久关闭监控器，取消后仍等待同步 owner 收敛到终态。"""
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monitor = Monitor.get_existing_instance()
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if monitor is None:
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return True
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return bool(
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await run_in_threadpool_to_completion(monitor.close, timeout=timeout)
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)
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