google-research
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1# coding=utf-8
2# Copyright 2024 The Google Research Authors.
3#
4# Licensed under the Apache License, Version 2.0 (the "License");
5# you may not use this file except in compliance with the License.
6# You may obtain a copy of the License at
7#
8# http://www.apache.org/licenses/LICENSE-2.0
9#
10# Unless required by applicable law or agreed to in writing, software
11# distributed under the License is distributed on an "AS IS" BASIS,
12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13# See the License for the specific language governing permissions and
14# limitations under the License.
15
16"""A simpler timer."""
17
18import time
19
20
21class Timer:
22"""A simple timer."""
23
24def __init__(self):
25self._last = time.time()
26
27@property
28def duration(self):
29return time.time() - self._last
30
31def restart(self):
32now = time.time()
33duration = now - self._last
34self._last = now
35return duration
36