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tuned/tuned.py
2012-03-12 13:45:56 +01:00

84 lines
2.2 KiB
Python
Executable file

#!/usr/bin/python
#
# tuned: A simple daemon that performs monitoring and adaptive configuration
# of devices in the system
#
# Copyright (C) 2008-2011 Red Hat, Inc.
#
# 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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
import tuned
import getopt
import os
import signal
import sys
def usage():
print "Usage: tuned [-d|--daemon] [-c conffile|--config=conffile] [-D|--debug]"
def error(message):
print >>sys.stderr, message
if __name__ == "__main__":
try:
opts, args = getopt.getopt(sys.argv[1:], "dc:D", ["daemon", "config=", "debug"])
except getopt.error as e:
error("Error parsing command-line arguments: %s" % e)
usage()
sys.exit(1)
if len(args) > 0:
error("Too many arguments.")
usage()
sys.exit(1)
config_file = None
daemon = False
debug = False
for (opt, val) in opts:
if opt in ['-d', "--daemon"]:
daemon = True
elif opt in ['-c', "--config"]:
config_file = val
elif opt in ['-D', "--debug"]:
debug = True
log = tuned.logs.get()
if (debug):
log.setLevel("DEBUG")
if os.getuid() != 0:
if daemon:
log.critical("Superuser permissions are needed.")
sys.exit(1)
else:
log.warn("Superuser permissions are needed. Most tunings will not work!")
controller = tuned.Controller(config_file, debug)
if daemon:
log.switch_to_file()
if tuned.utils.daemonize(3):
log.debug("successfully daemonized")
else:
log.critical("cannot daemonize")
sys.exit(1)
tuned.utils.handle_signal(signal.SIGHUP, controller.switch_to_default_profile)
tuned.utils.handle_signal([signal.SIGINT, signal.SIGTERM], controller.terminate)
controller.run()