| # Copyright 2024 The Chromium Authors |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| """ The module to provide measurements when it's supported. """ |
| |
| import os |
| import sys |
| |
| from contextlib import AbstractContextManager |
| |
| from common import DIR_SRC_ROOT |
| |
| PROTO_DIR = os.path.abspath( |
| os.path.join(DIR_SRC_ROOT, 'build', 'util', 'lib', 'proto')) |
| if os.path.isdir(PROTO_DIR): |
| sys.path.append(PROTO_DIR) |
| # pylint: disable=import-error, unused-import |
| from measures import average, clear, count, data_points, dump, tag, \ |
| time_consumption |
| else: |
| |
| class Dummy(AbstractContextManager): |
| """Dummy implementation when measures components do not exist.""" |
| |
| # pylint: disable=no-self-use |
| def record(self, *_) -> None: |
| """Dummy implementation of Measure.record.""" |
| |
| # pylint: disable=no-self-use |
| def dump(self) -> None: |
| """Dummy implementation of Measure.dump.""" |
| # Shouldn't be called. |
| assert False |
| |
| # pylint: disable=no-self-use |
| def __enter__(self) -> None: |
| pass |
| |
| # pylint: disable=no-self-use |
| def __exit__(self, *_) -> bool: |
| return False |
| |
| def average(*_) -> Dummy: |
| """Dummy implementation of measures.average.""" |
| return Dummy() |
| |
| def count(*_) -> Dummy: |
| """Dummy implementation of measures.count.""" |
| return Dummy() |
| |
| def clear(*_) -> None: |
| """Dummy implementation of measures.clear.""" |
| |
| def data_points(*_) -> Dummy: |
| """Dummy implementation of measures.data_points.""" |
| return Dummy() |
| |
| def time_consumption(*_) -> Dummy: |
| """Dummy implementation of measures.time_consumption.""" |
| return Dummy() |
| |
| def dump(*_) -> None: |
| """Dummy implementation of measures.dump.""" |
| |
| def tag(*_) -> None: |
| """Dummy implementation of measures.tag.""" |
