61 lines
2.1 KiB
Python
61 lines
2.1 KiB
Python
# This file is a part of sedbgmux, an open source DebugMux client.
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# Copyright (c) 2023 Vadim Yanitskiy <fixeria@osmocom.org>
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#
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# SPDX-License-Identifier: GPL-3.0-or-later
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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, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# 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 <http://www.gnu.org/licenses/>.
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import logging
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import threading
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import typing
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import queue
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from . import DbgMuxConnHandler
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# local logger for this module
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log = logging.getLogger(__name__)
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class DbgMuxConnFileLogger(DbgMuxConnHandler):
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''' Log all received connection data to a file (binary mode) '''
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def __init__(self, file: typing.BinaryIO):
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super().__init__()
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self._file = file
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self._rx_thread = threading.Thread(target=self._rx_worker,
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daemon=True)
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self._shutdown = threading.Event()
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def _rx_worker(self) -> None:
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''' Dequeue data blocks from the Rx queue and write to file '''
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while not self._shutdown.is_set():
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try:
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data: bytes = self._rx_data_queue.get(block=True, timeout=0.2)
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self._file.write(data)
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self._rx_data_queue.task_done()
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except queue.Empty:
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pass
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log.debug('Thread \'%s-Rx\' is shutting down', self.__class__.__name__)
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def _conn_established(self) -> None:
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''' Called when a connection has been established '''
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self._shutdown.clear()
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self._rx_thread.start()
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def _conn_terminated(self) -> None:
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''' Called when a connection has been terminated '''
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self._shutdown.set()
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self._rx_thread.join()
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