[PATCH 1/2] cooker.py: Close lock file and watcher fds when end.

["Aníbal Limón" <anibal.limon@linux.intel.com>]

When run cooker inside loop it reaches OS max fd's causing
an exception.

Signed-off-by: Aníbal Limón <anibal.limon@linux.intel.com>
---
 lib/bb/cooker.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/bb/cooker.py b/lib/bb/cooker.py
index f31bca6..abe8a52 100644
--- a/lib/bb/cooker.py
+++ b/lib/bb/cooker.py
@@ -1432,6 +1432,9 @@ class BBCooker:
         if self.state in (state.shutdown, state.forceshutdown, state.error):
             if hasattr(self.parser, 'shutdown'):
                 self.parser.shutdown(clean=False, force = True)
+            self.configwatcher.close()
+            self.watcher.close()
+            self.lock.close()
             raise bb.BBHandledException()
 
         if self.state != state.parsing:
-- 
1.9.1