runtime: fix serialization of object lists.

whitequark · whitequark · commit 653eeb476fc3 · 2016-07-07T12:40:50.000Z
Fixes #500.
diff --git a/artiq/runtime/session.c b/artiq/runtime/session.c
@@ -877,7 +877,12 @@ static int send_rpc_value(const char **tag, void **value)
 
         case 'O': { // host object
             struct { uint32_t id; } **object = *value;
-            return out_packet_int32((*object)->id);
+
+            if(!out_packet_int32((*object)->id))
+                return 0;
+
+            *value = (void*)((intptr_t)(*value) + sizeof(*object));
+            break;
         }
 
         default:
diff --git a/artiq/test/coredevice/test_embedding.py b/artiq/test/coredevice/test_embedding.py
@@ -48,6 +48,9 @@ def test_object(self):
         obj = object()
         self.assertRoundtrip(obj)
 
+    def test_object_list(self):
+        self.assertRoundtrip([object(), object()])
+
 
 class _DefaultArg(EnvExperiment):
     def build(self):
