41 lines
1.3 KiB
Python
41 lines
1.3 KiB
Python
#
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# Copyright(c) 2019-2022 Intel Corporation
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# SPDX-License-Identifier: BSD-3-Clause
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#
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import re
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from test_utils.dmesg import get_dmesg
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from test_utils.size import Size, Unit
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def get_metadata_size_on_device(cache_name: str) -> Size:
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dmesg_reversed = list(reversed(get_dmesg().split("\n")))
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cache_dmesg = "\n".join(line for line in dmesg_reversed if cache_name in line)
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try:
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return _get_metadata_info(dmesg=cache_dmesg, section_name="Metadata size on device")
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except ValueError:
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raise ValueError("Can't find the metadata size in dmesg output")
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def _get_metadata_info(dmesg, section_name) -> Size:
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for s in dmesg.split("\n"):
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if section_name in s:
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size, unit = re.search("\\d+ (B|kiB)", s).group().split()
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unit = Unit.KibiByte if unit == "kiB" else Unit.Byte
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return Size(int(re.search("\\d+", size).group()), unit)
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raise ValueError(f'"{section_name}" entry doesn\'t exist in the given dmesg output')
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def get_md_section_size(section_name, dmesg) -> Size:
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section_name = section_name.strip()
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section_name += " size"
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return _get_metadata_info(dmesg, section_name)
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def get_md_section_offset(section_name, dmesg) -> Size:
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section_name = section_name.strip()
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section_name += " offset"
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return _get_metadata_info(dmesg, section_name)
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