40 lines
1.3 KiB
Python
40 lines
1.3 KiB
Python
"""
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Copyright 2024-2026 ReplyPier
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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How long one source may take to read.
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Reading runs on worker threads, which cannot be stopped from outside: a
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timeout around the call would mark the source failed while the crawl and
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its embedding carried on in the background. So the work checks the deadline
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itself, between pages and between chunks, and stops.
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"""
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import time
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from typing import Callable
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class SourceTimedOut(Exception):
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"""The source ran past its time limit. The message is for the user."""
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class Deadline:
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def __init__(self, seconds: float, clock: Callable[[], float] = time.monotonic):
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self._clock = clock
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self._at = clock() + seconds
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@property
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def expired(self) -> bool:
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return self._clock() >= self._at
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