116 lines
2.9 KiB
Python
116 lines
2.9 KiB
Python
# Copyright (C) 2008-2012 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (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,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU 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, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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__all__ = ["Controller"]
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import exports
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import logs
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import threading
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import tuned.exceptions
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log = logs.get()
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class Controller(exports.interfaces.ExportableInterface):
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"""
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Controller's purpose is to keep the program running, start/stop the tuning,
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and export the controller interface (currently only over D-Bus).
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"""
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def __init__(self, daemon):
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super(self.__class__, self).__init__()
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self._daemon = daemon
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self._terminate = threading.Event()
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def run(self):
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"""
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Controller main loop. The call is blocking.
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"""
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log.info("starting controller")
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self.start()
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self._terminate.clear()
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# we have to pass some timeout, otherwise signals will not work
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while not self._terminate.wait(3600):
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pass
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log.info("terminating controller")
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self.stop()
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def terminate(self):
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self._terminate.set()
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@exports.export("", "b")
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def start(self):
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if self._daemon.is_running():
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return True
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elif not self._daemon.is_enabled():
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return False
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else:
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return self._daemon.start()
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@exports.export("", "b")
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def stop(self):
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if not self._daemon.is_running():
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return True
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else:
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return self._daemon.stop()
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@exports.export("", "b")
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def reload(self):
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if not self._daemon.is_running():
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return False
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else:
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return self.stop() and self.start()
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@exports.export("s", "b")
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def switch_profile(self, profile_name):
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was_running = self._daemon.is_running()
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success = True
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try:
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if was_running:
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self._daemon.stop()
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self._daemon.set_profile(profile_name)
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except tuned.exceptions.TunedException:
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success = False
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finally:
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if was_running:
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self._daemon.start()
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return success
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@exports.export("", "s")
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def active_profile(self):
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if self._daemon.profile is not None:
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return self._daemon.profile.name
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else:
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return ""
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@exports.export("", "b")
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def disable(self):
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if self._daemon.is_running():
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self._daemon.stop()
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if self._daemon.is_enabled():
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self._daemon.set_profile(None, save_instantly=True)
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return True
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@exports.export("", "b")
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def is_running(self):
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return self._daemon.is_running()
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@exports.export("", "as")
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def profiles(self):
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return self._daemon.profile_loader.profile_locator.get_known_names()
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