Changeset 1211 for trunk

Timestamp:

02/10/09 12:56:28 (16 years ago)

Author:

gkronber

Message:

merged r1210 from CEDMA refactoring branch into trunk #488 (Lazy compilation pattern in ProgrammableOperator is not thread-safe and doesn't work in thread parallel engines)

File:

• trunk/sources/HeuristicLab.Operators.Programmable/ProgrammableOperator.cs (modified) (2 diffs)

trunk/sources/HeuristicLab.Operators.Programmable/ProgrammableOperator.cs

@@ -54 +54 @@
       }
     }
+
+    private object syncRoot = new object();
 
     public ProgrammableOperator() {
@@ -152 +154 @@
 
     public override IOperation Apply(IScope scope) {
-      if (executeMethod == null) {
-        Compile();
+      lock (syncRoot) {
+        if (executeMethod == null) {
+          Compile();
+        }
       }