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""" A non-GUI application with a twisted reactor event loop.
Nothing is imported from twisted until the application is started so this
module can safely live in the Envisage core without twisted being installed.
"""
# Standard library imports.
import logging
# Enthought library imports.
from enthought.envisage.api import Application
# Logging.
logger = logging.getLogger(__name__)
class TwistedApplication(Application):
""" A non-GUI application with a twisted reactor event loop. """
def start(self):
""" Start the application. """
started = super(TwistedApplication, self).start()
# Don't start the event loop if the start was vetoed.
if started:
from twisted.internet import reactor
logger.debug('---------- reactor starting ----------')
reactor.run()
return started
def stop(self):
""" Stop the application. """
stopped = super(TwistedApplication, self).stop()
# Don't stop the event loop if the stop was vetoed.
if stopped:
from twisted.internet import reactor
logger.debug('---------- reactor stopping ----------')
reactor.stop()
return stopped
#### EOF ######################################################################
|
