async def listen(self):
data = None
while True:
obj = await self.read_pyon()
try:
action = obj["action"]
if action == "terminate":
self.close_cb()
return
elif action == "mod":
mod = obj["mod"]
if mod["action"] == "init":
data = self.init_cb(mod["struct"])
else:
process_mod(data, mod)
self.mod_cb(mod)
else:
raise ValueError("unknown action in parent message")
except:
logger.error("error processing parent message", exc_info=True)
self.close_cb()
def update(self, mod):
process_mod(self.data, mod)
def update(self, mod):
# Copy mod before applying to avoid sharing references to objects
# between this and the DatasetManager, which would lead to mods being
# applied twice.
process_mod(self.data, copy.deepcopy(mod))
def update(self, mod):
process_mod(self.model, mod)
for notify_cb in self.notify_cbs:
notify_cb(mod)