mirror of
https://github.com/mofeng-git/One-KVM.git
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67 lines
2.8 KiB
Python
67 lines
2.8 KiB
Python
# ========================================================================== #
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# #
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# KVMD - The main PiKVM daemon. #
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# #
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# Copyright (C) 2018-2022 Maxim Devaev <mdevaev@gmail.com> #
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# #
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# This program is free software: you can redistribute it and/or modify #
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# it under the terms of the GNU General Public License as published by #
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# the Free Software Foundation, either version 3 of the License, or #
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# (at your option) any later version. #
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# #
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# This program is distributed in the hope that it will be useful, #
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# but WITHOUT ANY WARRANTY; without even the implied warranty of #
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
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# GNU General Public License for more details. #
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# #
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# You should have received a copy of the GNU General Public License #
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# along with this program. If not, see <https://www.gnu.org/licenses/>. #
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# #
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# ========================================================================== #
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import re
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import asyncio
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import time
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from typing import AsyncGenerator
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import systemd.journal
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# =====
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class LogReader:
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async def poll_log(self, seek: int, follow: bool) -> AsyncGenerator[dict, None]:
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reader = systemd.journal.Reader()
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reader.this_boot()
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reader.this_machine()
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reader.log_level(systemd.journal.LOG_DEBUG)
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services = set(
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service
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for service in systemd.journal.Reader().query_unique("_SYSTEMD_UNIT")
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if re.match(r"kvmd(-\w+)*\.service", service)
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).union(["kvmd.service"])
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for service in services:
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reader.add_match(_SYSTEMD_UNIT=service)
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if seek > 0:
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reader.seek_realtime(float(time.time() - seek))
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for entry in reader:
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yield self.__entry_to_record(entry)
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while follow:
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entry = reader.get_next()
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if entry:
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yield self.__entry_to_record(entry)
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else:
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await asyncio.sleep(1)
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def __entry_to_record(self, entry: dict) -> dict[str, dict]:
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return {
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"dt": entry["__REALTIME_TIMESTAMP"],
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"service": entry["_SYSTEMD_UNIT"],
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"msg": entry["MESSAGE"].rstrip(),
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}
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