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code-test-drone/utils/stereo_ranger/warn_throttle.py
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"""告警节流器(§4/§5):每类异常"第 1 次 + 每满 100 次"打印,带累计计数。
高频热路径(每帧数学)不打日志;所有异常日志走本通道,且不落在数学热路径
的决策上(§11.3 单周期处理无阻塞、无 IO)。
"""
from typing import Dict
class WarnThrottle:
"""按异常类独立计数与限频。"""
def __init__(self, every: int = 100) -> None:
if every < 1:
raise ValueError("every 必须 ≥ 1")
self._every = every
self._counts: Dict[str, int] = {}
def should_emit(self, category: str) -> bool:
"""推进该类异常计数并返回本次是否应打印(第 1 次 + 每满 every 次)。"""
count = self._counts.get(category, 0) + 1
self._counts[category] = count
return count == 1 or count % self._every == 0
def count(self, category: str) -> int:
"""该类异常的累计次数。"""
return self._counts.get(category, 0)
def clear(self) -> None:
self._counts.clear()