9022920883
Currently, the post-loaded profile is shown only among regular active profiles. For example: Current active profile: balanced post This is not entirely user-friendly, because the user may not know why the post-loaded profile is there, given that they did not specify it in a 'tuned-adm profile' command and given that it's not present in /etc/tuned/active_profile. To give the user a hint about this and also to make it easy to see exactly which profile is post-loaded, we make 'tuned-adm active' show the following: Current active profile: balanced post Current post-loaded profile: post Signed-off-by: Ondřej Lysoněk <olysonek@redhat.com>
311 lines
8.7 KiB
Python
311 lines
8.7 KiB
Python
from tuned import exports
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import tuned.logs
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import tuned.exceptions
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from tuned.exceptions import TunedException
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import threading
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import tuned.consts as consts
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from tuned.utils.commands import commands
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from tuned.utils.profile_recommender import ProfileRecommender
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__all__ = ["Controller"]
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log = tuned.logs.get()
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class TimerStore(object):
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def __init__(self):
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self._timers = dict()
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self._timers_lock = threading.Lock()
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def store_timer(self, token, timer):
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with self._timers_lock:
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self._timers[token] = timer
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def drop_timer(self, token):
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with self._timers_lock:
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try:
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timer = self._timers[token]
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timer.cancel()
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del self._timers[token]
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except:
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pass
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def cancel_all(self):
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with self._timers_lock:
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for timer in self._timers.values():
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timer.cancel()
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self._timers.clear()
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class Controller(tuned.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, global_config):
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super(Controller, self).__init__()
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self._daemon = daemon
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self._global_config = global_config
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self._terminate = threading.Event()
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self._cmd = commands()
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self._timer_store = TimerStore()
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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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res = self.start()
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daemon = self._global_config.get_bool(consts.CFG_DAEMON, consts.CFG_DEF_DAEMON)
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if not res and daemon:
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exports.start()
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if daemon:
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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._cmd.wait(self._terminate, 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.signal("sbs")
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def profile_changed(self, profile_name, result, errstr):
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pass
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# exports decorator checks the authorization (currently through polkit), caller is None if
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# no authorization was performed (i.e. the call should process as authorized), string
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# identifying caller (with DBus it's the caller bus name) if authorized and empty
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# string if not authorized, caller must be the last argument
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def _log_capture_abort(self, token):
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tuned.logs.log_capture_finish(token)
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self._timer_store.drop_timer(token)
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@exports.export("ii", "s")
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def log_capture_start(self, log_level, timeout, caller = None):
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if caller == "":
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return ""
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token = tuned.logs.log_capture_start(log_level)
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if token is None:
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return ""
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if timeout > 0:
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timer = threading.Timer(timeout,
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self._log_capture_abort, args = [token])
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self._timer_store.store_timer(token, timer)
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timer.start()
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return "" if token is None else token
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@exports.export("s", "s")
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def log_capture_finish(self, token, caller = None):
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if caller == "":
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return ""
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res = tuned.logs.log_capture_finish(token)
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self._timer_store.drop_timer(token)
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return "" if res is None else res
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@exports.export("", "b")
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def start(self, caller = None):
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if caller == "":
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return False
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if self._global_config.get_bool(consts.CFG_DAEMON, consts.CFG_DEF_DAEMON):
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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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return self._daemon.start()
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@exports.export("", "b")
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def stop(self, caller = None):
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if caller == "":
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return False
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if not self._daemon.is_running():
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res = True
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else:
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res = self._daemon.stop()
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self._timer_store.cancel_all()
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return res
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@exports.export("", "b")
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def reload(self, caller = None):
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if caller == "":
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return False
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if self._daemon.is_running():
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stop_ok = self.stop()
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if not stop_ok:
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return False
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try:
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self._daemon.reload_profile_config()
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except TunedException as e:
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log.error("Failed to reload Tuned: %s" % e)
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return False
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return self.start()
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def _switch_profile(self, profile_name, manual):
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was_running = self._daemon.is_running()
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msg = "OK"
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success = True
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reapply = False
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try:
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if was_running:
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self._daemon.stop(profile_switch = True)
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self._daemon.set_profile(profile_name, manual)
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except tuned.exceptions.TunedException as e:
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success = False
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msg = str(e)
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if was_running and self._daemon.profile.name == profile_name:
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log.error("Failed to reapply profile '%s'. Did it change on disk and break?" % profile_name)
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reapply = True
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else:
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log.error("Failed to apply profile '%s'" % profile_name)
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finally:
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if was_running:
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if reapply:
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log.warn("Applying previously applied (possibly out-dated) profile '%s'." % profile_name)
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elif not success:
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log.info("Applying previously applied profile.")
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self._daemon.start()
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return (success, msg)
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@exports.export("s", "(bs)")
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def switch_profile(self, profile_name, caller = None):
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if caller == "":
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return (False, "Unauthorized")
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return self._switch_profile(profile_name, True)
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@exports.export("", "(bs)")
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def auto_profile(self, caller = None):
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if caller == "":
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return (False, "Unauthorized")
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profile_name = self.recommend_profile()
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return self._switch_profile(profile_name, False)
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@exports.export("", "s")
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def active_profile(self, caller = None):
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if caller == "":
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return ""
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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("", "(ss)")
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def profile_mode(self, caller = None):
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if caller == "":
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return "unknown", "Unauthorized"
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manual = self._daemon.manual
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if manual is None:
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# This means no profile is applied. Check the preset value.
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try:
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profile, manual = self._cmd.get_active_profile()
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if manual is None:
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manual = profile is not None
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except TunedException as e:
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mode = "unknown"
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error = str(e)
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return mode, error
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mode = consts.ACTIVE_PROFILE_MANUAL if manual else consts.ACTIVE_PROFILE_AUTO
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return mode, ""
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@exports.export("", "s")
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def post_loaded_profile(self, caller = None):
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if caller == "":
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return ""
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return self._daemon.post_loaded_profile or ""
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@exports.export("", "b")
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def disable(self, caller = None):
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if caller == "":
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return False
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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_all_profiles(None, True, None,
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save_instantly=True)
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return True
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@exports.export("", "b")
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def is_running(self, caller = None):
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if caller == "":
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return False
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return self._daemon.is_running()
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@exports.export("", "as")
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def profiles(self, caller = None):
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if caller == "":
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return []
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return self._daemon.profile_loader.profile_locator.get_known_names()
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@exports.export("", "a(ss)")
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def profiles2(self, caller = None):
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if caller == "":
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return []
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return self._daemon.profile_loader.profile_locator.get_known_names_summary()
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@exports.export("s", "(bsss)")
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def profile_info(self, profile_name, caller = None):
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if caller == "":
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return tuple(False, "", "", "")
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if profile_name is None or profile_name == "":
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profile_name = self.active_profile()
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return tuple(self._daemon.profile_loader.profile_locator.get_profile_attrs(profile_name, [consts.PROFILE_ATTR_SUMMARY, consts.PROFILE_ATTR_DESCRIPTION], [""]))
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@exports.export("", "s")
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def recommend_profile(self, caller = None):
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if caller == "":
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return ""
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return ProfileRecommender().recommend(hardcoded = not self._global_config.get_bool(consts.CFG_RECOMMEND_COMMAND, consts.CFG_DEF_RECOMMEND_COMMAND))
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@exports.export("", "b")
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def verify_profile(self, caller = None):
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if caller == "":
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return False
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return self._daemon.verify_profile(ignore_missing = False)
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@exports.export("", "b")
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def verify_profile_ignore_missing(self, caller = None):
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if caller == "":
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return False
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return self._daemon.verify_profile(ignore_missing = True)
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@exports.export("", "a{sa{ss}}")
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def get_all_plugins(self, caller = None):
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"""Return dictionary with accesible plugins
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Return:
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dictionary -- {plugin_name: {parameter_name: default_value}}
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"""
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if caller == "":
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return False
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plugins = {}
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for plugin_class in self._daemon.get_all_plugins():
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plugin_name = plugin_class.__module__.split(".")[-1].split("_", 1)[1]
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conf_options = plugin_class._get_config_options()
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plugins[plugin_name] = {}
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for key, val in conf_options.items():
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plugins[plugin_name][key] = str(val)
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return plugins
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@exports.export("s","s")
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def get_plugin_documentation(self, plugin_name, caller = None):
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"""Return docstring of plugin's class"""
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if caller == "":
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return False
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return self._daemon.get_plugin_documentation(str(plugin_name))
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@exports.export("s","a{ss}")
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def get_plugin_hints(self, plugin_name, caller = None):
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"""Return dictionary with plugin's parameters and their hints
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Parameters:
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plugin_name -- name of plugin
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Return:
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dictionary -- {parameter_name: hint}
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"""
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if caller == "":
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return False
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return self._daemon.get_plugin_hints(str(plugin_name))
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