Added thread lock for internal name cache.

Removed unrequired scene exception retrieval during adding of new shows.

sickbeard/name_cache.py

@@ -15,15 +15,13 @@
 #
 # You should have received a copy of the GNU General Public License
 # along with SickRage.  If not, see <http://www.gnu.org/licenses/>.
-
+import threading
 import sickbeard
-
 from sickbeard import db
-from sickbeard.helpers import sanitizeSceneName
 from sickbeard import logger
 
 nameCache = None
-
+nameCacheLock = threading.Lock()
 
 def addNameToCache(name, indexer_id=0):
     """
@@ -98,6 +96,7 @@ def buildNameCache(show=None):
     if not nameCache:
         nameCache = {}
 
+    with nameCacheLock:
         # clear internal name cache
         clearCache()
 

sickbeard/scene_exceptions.py

@@ -34,6 +34,7 @@ xem_exception_dict = {}
 exceptionsCache = {}
 exceptionsSeasonCache = {}
 
+exceptionLock = threading.Lock()
 
 def shouldRefresh(list):
     MAX_REFRESH_AGE_SECS = 86400  # 1 day

sickbeard/show_queue.py

@@ -354,9 +354,6 @@ class QueueItemAdd(ShowQueueItem):
                 logger.ERROR)
             logger.log(traceback.format_exc(), logger.DEBUG)
 
-        # before we parse local files lets update exceptions
-        sickbeard.scene_exceptions.retrieve_exceptions()
-
         # update internal name cache
         name_cache.buildNameCache()