Klipper 源码解析-queuelogger_klipper代码

QueueLogger 是一个用于后台日志记录的工具。它用于将日志消息存储在一个队列中，以便在后台进行处理和记录。

下面是他的代码

# Code to implement asynchronous logging from a background thread
#
# Copyright (C) 2016-2019  Kevin O'Connor <kevin@koconnor.net>
#
# This file may be distributed under the terms of the GNU GPLv3 license.
import logging, logging.handlers, threading, queue, time
 
# Class to forward all messages through a queue to a background thread
class QueueHandler(logging.Handler):
    def __init__(self, queue):
        logging.Handler.__init__(self)
        self.queue = queue
    def emit(self, record):
        try:
            self.format(record)
            record.msg = record.message
            record.args = None
            record.exc_info = None
            self.queue.put_nowait(record)
        except Exception:
            self.handleError(record)
 
# Class to poll a queue in a background thread and log each message
class QueueListener(logging.handler