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30 lines
1.0 KiB
Python
30 lines
1.0 KiB
Python
"""
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Copyright © IQ.Lvbs, apart of Project Teal Lvbs, All Rights Reserved, licensed under https://konn3kt.com/tos
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"""
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import hashlib
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from enum import IntEnum
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# How often background loops refresh cached params, in seconds.
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PARAMS_UPDATE_PERIOD = 3
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def get_file_hash(path: str) -> str:
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"""Hex SHA-256 of a file's contents."""
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with open(path, "rb") as handle:
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return hashlib.file_digest(handle, "sha256").hexdigest()
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def get_sanitize_int_param(key: str, min_val: int, max_val: int, params) -> int:
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"""Read an int param, clamp it into [min_val, max_val], and write the clamp back
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if it moved so the stored value never drifts out of range."""
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stored = params.get(key, return_default=True)
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bounded = min(max(stored, min_val), max_val)
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if bounded != stored:
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params.put(key, bounded)
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return bounded
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# Speed-limit feature level (SpeedLimitMode param contract), ordered by authority.
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_SLC_TIERS = ("off", "information", "warning", "control")
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Mode = IntEnum("Mode", [(tier, rank) for rank, tier in enumerate(_SLC_TIERS)])
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