lock SenseRepeatListLock when added a new sensor during script reconstitution.

This is already being done in the other place where a sensor is added.
Adding a sensor whilst another thread is iterating over the sensor list can cause a concurrency exception.

1 files changed, 3 insertions, 1 deletions

diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs
index 5c1bdff..8383c7f 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/Plugins/SensorRepeat.cs
@@ -635,7 +635,9 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api.Plugins
                 ts.next =
                     DateTime.Now.ToUniversalTime().AddSeconds(ts.interval);
 
-                SenseRepeaters.Add(ts);
+                lock (SenseRepeatListLock)
+                    SenseRepeaters.Add(ts);
+                
                 idx += 6;
             }
         }