class EventLoop(object):
def __init__(self):
self._queue = BroadcastQueue()
self._endpoint = self._queue.new_endpoint()
def schedule(self, function):
# In or out of STM
if function is None:
raise ValueError("function cannot be None")
stm.atomically(lambda: self._queue.put(function))
def scheduled_function(self, function):
@functools.wraps(function)
def wrapper(*args, **kwargs):
self.schedule(functools.partial(function, *args, **kwargs))
return wrapper
def stop(self):
# In or out of STM
stm.atomically(lambda: self._queue.put(None))
def start(self):
# Outside of STM only
if stm._stm_state.current:
raise Exception("This must be called outside of a transaction.")
thread = Thread(name="stm.eventloop.EventLoop", target=self.run)
# TODO: Should we be daemonizing here?
thread.setDaemon(True)
thread.start()
def run(self):
# Outside of STM only
if stm._stm_state.current:
raise Exception("This must be called outside of a transaction.")
while True:
next_event = stm.atomically(self._endpoint.get)
if next_event is None:
print "Event loop exiting"
return
try:
next_event()
except:
print "Event threw an exception, which will be ignored."
print "For reference, the exception is:"
traceback.print_exc()
class EventLoop(object):
def __init__(self):
self._queue = BroadcastQueue()
self._endpoint = self._queue.new_endpoint()
def schedule(self, function):
# In or out of STM
if function is None:
raise ValueError("function cannot be None")
stm.atomically(lambda: self._queue.put(function))
def stop(self):
# In or out of STM
stm.atomically(lambda: self._queue.put(None))
def start(self):
# Outside of STM only
if stm._stm_state.current:
raise Exception("This must be called outside of a transaction.")
thread = Thread(name="stm.eventloop.EventLoop", target=self.run)
# TODO: Should we be daemonizing here?
thread.setDaemon(True)
thread.start()
def run(self):
# Outside of STM only
if stm._stm_state.current:
raise Exception("This must be called outside of a transaction.")
while True:
next_event = stm.atomically(self._endpoint.get)
if next_event is None:
print "Event loop exiting"
return
try:
next_event()
except Exception:
print "Event threw an exception, which will be ignored."
print "For reference, the exception is:"
traceback.print_exc()
except:
print "Event threw a non-standard exception:"
traceback.print_exc()
raise
def __init__(self):
self._queue = BroadcastQueue()
self._endpoint = self._queue.new_endpoint()
def __init__(self):
self._queue = BroadcastQueue()
self._endpoint = self._queue.new_endpoint()
