Changeset 1210

Timestamp:

02/05/09 14:29:29 (15 years ago)

Author:

gkronber

Message:

quick fix for #488 (Lazy compilation pattern in ProgrammableOperator is not thread-safe and doesn't work in thread parallel engines). Synchronized lazy compilation of method.

File:

• branches/CEDMA-Refactoring-Ticket419/HeuristicLab.Operators.Programmable/ProgrammableOperator.cs (modified) (2 diffs)

branches/CEDMA-Refactoring-Ticket419/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();
+        }
       }