mopidy/mopidy/utils/process.py
2011-05-25 23:06:15 +02:00

60 lines
1.6 KiB
Python

import logging
import threading
import gobject
gobject.threads_init()
from pykka import ActorDeadError
from mopidy import SettingsError
logger = logging.getLogger('mopidy.utils.process')
class BaseThread(threading.Thread):
def __init__(self):
super(BaseThread, self).__init__()
# No thread should block process from exiting
self.daemon = True
def run(self):
logger.debug(u'%s: Starting thread', self.name)
try:
self.run_inside_try()
except KeyboardInterrupt:
logger.info(u'Interrupted by user')
except SettingsError as e:
logger.error(e.message)
except ImportError as e:
logger.error(e)
except ActorDeadError as e:
logger.warning(e)
except Exception as e:
logger.exception(e)
logger.debug(u'%s: Exiting thread', self.name)
def run_inside_try(self):
raise NotImplementedError
class GObjectEventThread(BaseThread):
"""
A GObject event loop which is shared by all Mopidy components that uses
libraries that need a GObject event loop, like GStreamer and D-Bus.
Should be started by Mopidy's core and used by
:mod:`mopidy.output.gstreamer`, :mod:`mopidy.frontend.mpris`, etc.
"""
def __init__(self):
super(GObjectEventThread, self).__init__()
self.name = u'GObjectEventThread'
self.loop = None
def run_inside_try(self):
self.loop = gobject.MainLoop().run()
def destroy(self):
self.loop.quit()
super(GObjectEventThread, self).destroy()