Fix possible race-condition.

diff --git a/Cura/util/sliceEngine.py b/Cura/util/sliceEngine.py
index 432038dd2f7da69e3133f85f83fff6b13fd01b64..e99e22dc42a8c8690a8f3f7e2c2460e8b25f55fb 100644 (file)
--- a/Cura/util/sliceEngine.py
+++ b/Cura/util/sliceEngine.py
@@ -347,17 +347,17 @@ class Engine(object):
                                self._objCount += 1
                modelHash = hash.hexdigest()
                if self._objCount > 0:
-                       self._modelData = engineModelData
-                       self._thread = threading.Thread(target=self._watchProcess, args=(commandList, self._thread, modelHash))
+                       self._thread = threading.Thread(target=self._watchProcess, args=(commandList, self._thread, engineModelData, modelHash))
                        self._thread.daemon = True
                        self._thread.start()
 
-       def _watchProcess(self, commandList, oldThread, modelHash):
+       def _watchProcess(self, commandList, oldThread, engineModelData, modelHash):
                if oldThread is not None:
                        if self._process is not None:
                                self._process.terminate()
                        oldThread.join()
                self._callback(-1.0)
+               self._modelData = engineModelData
                try:
                        self._process = self._runEngineProcess(commandList)
                except OSError:
@@ -367,6 +367,7 @@ class Engine(object):
                        self._process.terminate()
 
                self._result = EngineResult()
+               self._result.addLog('Running: %s' % (' '.join(commandList)))
                self._result.setHash(modelHash)
                self._callback(0.0)