o •Ù·iÈã@sTdZddlmZddlmZddlmZddlmZd dd„Z d d d „Z dd gZ dS) zzmq device functionsé)Úffi)Úlib)ÚSocket)Ú_retry_sys_callNcCs0t|tƒr |j}ntj}ttj|j|j|ƒdS©N)Ú isinstancerÚ _zmq_socketrÚNULLrÚCÚ zmq_proxy)ÚfrontendÚbackendÚcapture©rúL/home/ubuntu/.local/lib/python3.10/site-packages/zmq/backend/cffi/devices.pyÚproxy s rcCsJt|tƒr |j}ntj}t|tƒr|j}ntj}ttj|j|j||ƒdS)aúproxy_steerable(frontend, backend, capture, control) Start a zeromq proxy with control flow. .. versionadded:: libzmq-4.1 .. versionadded:: 18.0 Parameters ---------- frontend : Socket The Socket instance for the incoming traffic. backend : Socket The Socket instance for the outbound traffic. capture : Socket (optional) The Socket instance for capturing traffic. control : Socket (optional) The Socket instance for control flow. N)rrrrr rr Úzmq_proxy_steerable)r r rÚcontrolrrrÚproxy_steerables  ûrr)NN) Ú__doc__Ú_cffirrr ÚsocketrÚutilsrrrÚ__all__rrrrÚs      &