don't try to get statistics, if the server is not enabled

git-svn-id: https://pycam.svn.sourceforge.net/svnroot/pycam/trunk@771 bbaffbd6-741e-11dd-a85d-61de82d9cad9

src/pycam/Gui/Project.py

@@ -1468,10 +1468,12 @@ class ProjectGui:
                     not is_available)
             self.gui.get_object("ProcessPoolStatisticsBox").set_visible(
                     is_available)
-            interval = int(max(1, self.gui.get_object(
-                    "ProcessPoolRefreshInterval").get_value()))
-            gobject.timeout_add_seconds(interval,
-                    self.update_process_pool_statistics, interval)
+            if is_available:
+                # start the refresh function
+                interval = int(max(1, self.gui.get_object(
+                        "ProcessPoolRefreshInterval").get_value()))
+                gobject.timeout_add_seconds(interval,
+                        self.update_process_pool_statistics, interval)
             self.process_pool_window.show()
         else:
             self.process_pool_window.hide()

src/pycam/Utils/threading.py

@@ -65,7 +65,10 @@ def is_pool_available():
 
 def get_pool_statistics():
     global __manager
-    return __manager.statistics().get_worker_statistics()
+    if __manager is None:
+        return []
+    else:
+        return __manager.statistics().get_worker_statistics()
 
 def init_threading(number_of_processes=None, enable_server=False, remote=None, run_server=False,
         server_credentials=""):