def main():
listener = Listener()
listener.append_service(MonitorServiceImpl())
channel = ServerChannel(PBHandler, listener, parser=PBParser)
#channel.listen(('localhost', 8888))
channel.listen('/tmp/hello_pb.sock')
channel.append_middleware(MonitorMiddleware(1, 3))
channel.start()
try:
serve_forever()
except:
print(len(channel.connections))
print(greenlet_pool.size, len(greenlet_pool.greenlets))
