Commit 37cb1be6 authored by Ralf's avatar Ralf
Browse files

update space API concept

parent dfe98478
class SpaceApi:
__init__ (self):
self.state_to_set = None # public write, TODO: getters, setters?
self.state_last_set = None # public read
__init__ (self, waker):
self._state_to_set = None # public write
self._state_last_set = None # public read FIXME why? getter?
self._running = True
self._t = threading.Thread(target=self.loop)
_t.start()
self.set_state = ThreadFunction(self._set_state, "Space API")
waker.register(self.set_state, 10.0) # re-try setting the state every 10 seconds
def stop (self):
self._running = False
self.set_state.stop()
def loop (self):
while self._running:
if (self.state_to_set is not None):
if self.state_to_set != self.state_last_set:
stts = self.state_to_set # cache for parallelism
error = do_request(stts) # TODO
#TODO logging
if not error:
self.state_last_set = stts
#TODO logging
time.sleep(SPACE_API_LOOP_DELAY)
\ No newline at end of file
def _set_state (self, state = None):
'''Sets the state, if None: leave state unchanged and re-try if previous attempts failed'''
if state is not None:
self._state_to_set = state
# check if there's something we need to do
if self._state_last_set == self._state_to_set: return
# take action!
error = do_request(stts) # TODO
#TODO logging
if not error:
self.state_last_set = stts
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