daemon: moved SetQeueue into utils to be leveraged by others, updated MoveNodesStreamer to leverage SetQueue, this will allow a means to stream node movements, but if position changes happen faster than processing, the latest position will override prior pushes and the latest position will be pulled off the queue

daemon/core/utils.py

@@ -16,7 +16,9 @@ import shlex
 import shutil
 import sys
 import threading
+from collections import OrderedDict
 from pathlib import Path
+from queue import Queue
 from subprocess import PIPE, STDOUT, Popen
 from typing import (
     TYPE_CHECKING,
@@ -474,3 +476,19 @@ def parse_iface_config_id(config_id: int) -> Tuple[int, Optional[int]]:
         iface_id = config_id % IFACE_CONFIG_FACTOR
         node_id = config_id // IFACE_CONFIG_FACTOR
     return node_id, iface_id
+
+
+class SetQueue(Queue):
+    """
+    Set backed queue to avoid duplicate submissions.
+    """
+
+    def _init(self, maxsize):
+        self.queue: OrderedDict = OrderedDict()
+
+    def _put(self, item):
+        self.queue[item] = None
+
+    def _get(self):
+        key, _ = self.queue.popitem(last=False)
+        return key