修改设备端对接

talkingq-url/services/device_target_cache.py

@@ -0,0 +1,29 @@
+import asyncio
+from typing import Dict, Optional
+
+
+class DeviceTargetCache:
+    def __init__(self):
+        self.targets: Dict[str, str] = {}
+        self.lock = asyncio.Lock()
+
+    async def get_target(self, device_id: str) -> Optional[str]:
+        async with self.lock:
+            return self.targets.get(device_id)
+
+    async def set_target(self, device_id: str, target_device_id: str):
+        async with self.lock:
+            self.targets[device_id] = target_device_id
+
+    async def remove_target(self, device_id: str):
+        async with self.lock:
+            if device_id in self.targets:
+                del self.targets[device_id]
+
+    async def get_all_targets(self) -> list:
+        async with self.lock:
+            return list(self.targets.items())
+
+
+# 单例实例
+device_target_cache = DeviceTargetCache()