DBHub: make it a context manager

2015-04-04 20:40:31 -06:00 · 2015-04-04 20:40:31 -06:00 · 7b86138fd2
parent afc3982555
commit 7b86138fd2
1 changed files with 8 additions and 1 deletions
--- a/artiq/master/worker_db.py
+++ b/artiq/master/worker_db.py
@ -112,4 +112,11 @@ class DBHub:
                dev.close_rpc()
            elif hasattr(dev, "close"):
                dev.close()
-        self.active_devices = OrderedDict()
+        self.active_devices.clear()
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        self.close_devices()
+        return False  # do not suppress exceptions within context