def postStart(self):
'''Checking the current state of the listening GPIO's and do the configured actions'''
Module.postStart(self)
# Init listen GPIO's in poststart
# We need to be sure that listen isn't triggered until all the modules was started
for name, item in self._cfg.get('listen', {}).iteritems():
log.info("Attaching GPIO listener %s to pin %d" %
(name, item['pin']))
self._pin_map[item['pin']] = name
gpio.setup(item['pin'], gpio.IN)
while self.isActive():
# Sometimes event detection is can't be set up - so need retries
try:
gpio.add_event_detect(item['pin'],
gpio.BOTH,
callback=self._listenTrigger)
except RuntimeError:
log.error(
'Detected unable to set event detection for GPIO %s, retrying...'
% item['pin'])
self.waitActive(1.0)
continue
break
for pin in self._pin_map:
self._listenTrigger(pin)
def postStart(self):
Module.postStart(self)
