Squish: Improve cleanup on Win

Change-Id: If39af63b6b65cb09c351bef6158c8ae8b9837668
Reviewed-by: Robert Loehning <robert.loehning@digia.com>

tests/system/shared/qtcreator.py

@@ -61,6 +61,8 @@ def waitForCleanShutdown(timeOut=10):
     appCtxt = currentApplicationContext()
     shutdownDone = (str(appCtxt)=="")
     if platform.system() in ('Windows','Microsoft'):
+        # cleaning helper for running on the build machines
+        __checkForQmlViewer__()
         endtime = datetime.utcnow() + timedelta(seconds=timeOut)
         while not shutdownDone:
             # following work-around because os.kill() works for win not until python 2.7
@@ -85,6 +87,19 @@ def waitForCleanShutdown(timeOut=10):
             if not shutdownDone and datetime.utcnow() > endtime:
                 break
 
+def __checkForQmlViewer__():
+    tasks = subprocess.Popen("tasklist /FI \"IMAGENAME eq qmlviewer.exe\"", shell=True,
+                             stdout=subprocess.PIPE)
+    output = tasks.communicate()[0]
+    tasks.stdout.close()
+    if "INFO: No tasks are running which match the specified criteria." in output:
+        return
+    else:
+        if subprocess.call("taskkill /F /FI \"IMAGENAME eq qmlviewer.exe\"", shell=True) == 0:
+            print "Killed still running qmlviewer"
+        else:
+            print "qmlviewer is still running - failed to kill it"
+
 def __removeTestingDir__():
     def __removeIt__(directory):
         deleteDirIfExists(directory)