1 files changed, 66 insertions, 0 deletions
diff --git a/scripts/external_libs/zmq/devices/monitoredqueuedevice.py b/scripts/external_libs/zmq/devices/monitoredqueuedevice.py
new file mode 100644
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+++ b/scripts/external_libs/zmq/devices/monitoredqueuedevice.py
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+"""MonitoredQueue classes and functions."""
+
+# Copyright (C) PyZMQ Developers
+# Distributed under the terms of the Modified BSD License.
+
+
+from zmq import ZMQError, PUB
+from zmq.devices.proxydevice import ProxyBase, Proxy, ThreadProxy, ProcessProxy
+from zmq.devices.monitoredqueue import monitored_queue
+
+
+class MonitoredQueueBase(ProxyBase):
+    """Base class for overriding methods."""
+    
+    _in_prefix = b''
+    _out_prefix = b''
+    
+    def __init__(self, in_type, out_type, mon_type=PUB, in_prefix=b'in', out_prefix=b'out'):
+        
+        ProxyBase.__init__(self, in_type=in_type, out_type=out_type, mon_type=mon_type)
+        
+        self._in_prefix = in_prefix
+        self._out_prefix = out_prefix
+
+    def run_device(self):
+        ins,outs,mons = self._setup_sockets()
+        monitored_queue(ins, outs, mons, self._in_prefix, self._out_prefix)
+
+
+class MonitoredQueue(MonitoredQueueBase, Proxy):
+    """Class for running monitored_queue in the background.
+
+    See zmq.devices.Device for most of the spec. MonitoredQueue differs from Proxy,
+    only in that it adds a ``prefix`` to messages sent on the monitor socket,
+    with a different prefix for each direction.
+    
+    MQ also supports ROUTER on both sides, which zmq.proxy does not.
+
+    If a message arrives on `in_sock`, it will be prefixed with `in_prefix` on the monitor socket.
+    If it arrives on out_sock, it will be prefixed with `out_prefix`.
+
+    A PUB socket is the most logical choice for the mon_socket, but it is not required.
+    """
+    pass
+
+
+class ThreadMonitoredQueue(MonitoredQueueBase, ThreadProxy):
+    """Run zmq.monitored_queue in a background thread.
+    
+    See MonitoredQueue and Proxy for details.
+    """
+    pass
+
+
+class ProcessMonitoredQueue(MonitoredQueueBase, ProcessProxy):
+    """Run zmq.monitored_queue in a background thread.
+    
+    See MonitoredQueue and Proxy for details.
+    """
+
+
+__all__ = [
+    'MonitoredQueue',
+    'ThreadMonitoredQueue',
+    'ProcessMonitoredQueue'
+]