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# Copyright (C) 2009, Martin Dengler <martin@martindengler.com>
#
# 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 2 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, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import os
import gobject
from dataseries import DataSeries
class WirelessDataSeries(DataSeries):
def __init__(self, *args, **kwargs):
DataSeries.__init__(self, *args, **kwargs)
self.interface = kwargs["interface"] \
if "interface" in kwargs else "eth0"
self.sysfs_path = "/sys/class/net/%s/wireless/link" % self.interface
assert os.access(self.sysfs_path, os.R_OK), \
"can't read from path %s" % self.sysfs_path
self.timer = gobject.timeout_add(250, self.__timeout_cb)
def __timeout_cb(self):
self.record_new_value(self._get_next_value())
return True
def _get_next_value(self):
reported = int(open(self.sysfs_path).read().strip())
return reported / 100.0
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