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# -*- python -*-
'''
xpybar – xmobar replacement written in python
Copyright © 2014, 2015, 2016, 2017 Mattias Andrée (maandree@member.fsf.org)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
'''
from plugins.linereader import LineReader
class KMsg(LineReader):
'''
Line reader for the kernel console output
'''
def __init__(self):
'''
Constructor
'''
LineReader.__init__(self, '/dev/kmsg')
self.__first = True
def next(self):
'''
Reads the next line
@return :str? The next line, `None` if stream has closed
'''
try:
if self.__first:
import time
self.__first = False
while True:
start = time.monotonic()
rc = LineReader.next(self)
end = time.monotonic()
if end - start > 1:
return rc
else:
return LineReader.next(self)
except:
return None
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