Added abort() method to let the Engine/Evaluator know that the current

execution is being aborted (usually due to a request timeout).

src/helma/scripting/ScriptingEngine.java

@@ -42,6 +42,11 @@ public interface ScriptingEngine {
     public Object invoke (Object thisObject, String functionName, Object[] args)
 		throws ScriptingException;
 
+    /**
+     *  Let the evaluator know that the current evaluation has been aborted.
+     */
+    public void abort ();
+
     /**
      *  Get a property on an object
      */

src/helma/scripting/fesi/FesiEvaluator.java

@@ -407,6 +407,15 @@ public final class FesiEvaluator implements ScriptingEngine {
 	}
     }
 
+    /**
+     *  Let the evaluator know that the current evaluation has been
+     *  aborted. This is done by setting the thread ref in the evaluator
+     * object to null.
+     */
+    public void abort () {
+	evaluator.thread = null;
+    }
+
 
     /**
      * Check if an object has a function property (public method if it