[tor-commits] [ooni-probe/master] Fix cache updating logic.

[art@xxxxxxxxxxxxxx]

commit 79ed2a50afc489b925bd6eaa78f1342d60877955
Author: Arturo Filastò <arturo@xxxxxxxxxxx>
Date:   Fri Sep 16 17:52:06 2016 +0200

    Fix cache updating logic.
    
    * Fix typo in comment
---
 ooni/deck/store.py    | 11 ++++++++---
 ooni/ui/web/server.py |  4 ++--
 2 files changed, 10 insertions(+), 5 deletions(-)

diff --git a/ooni/deck/store.py b/ooni/deck/store.py
index bf1eb7f..f30b0d6 100644
--- a/ooni/deck/store.py
+++ b/ooni/deck/store.py
@@ -92,15 +92,17 @@ class InputStore(object):
         yield self.create(country_code)
 
     def _update_cache(self):
+        new_cache = {}
         descs = self.path.child("descriptors")
         if not descs.exists():
-            self._cache = {}
+            self._cache = new_cache
             return
 
         for fn in descs.listdir():
             with descs.child(fn).open("r") as in_fh:
                 input_desc = json.load(in_fh)
-                self._cache[input_desc.pop("id")] = input_desc
+                new_cache[input_desc.pop("id")] = input_desc
+        self._cache = new_cache
         self._cache_stale = False
         return
 
@@ -172,6 +174,7 @@ class DeckStore(object):
         deck_enabled_path.remove()
 
     def _update_cache(self):
+        new_cache = {}
         for deck_path in self.available_directory.listdir():
             if not deck_path.endswith('.yaml'):
                 continue
@@ -179,7 +182,9 @@ class DeckStore(object):
             deck = NGDeck(
                 deck_path=self.available_directory.child(deck_path).path
             )
-            self._cache[deck_id] = deck
+            new_cache[deck_id] = deck
+        self._cache = new_cache
+        self._cache_stale = False
 
     def get(self, deck_id):
         if self._cache_stale:
diff --git a/ooni/ui/web/server.py b/ooni/ui/web/server.py
index 48f21c7..cee42ce 100644
--- a/ooni/ui/web/server.py
+++ b/ooni/ui/web/server.py
@@ -144,8 +144,8 @@ class LongPoller(object):
 
 class WebUIAPI(object):
     app = Klein()
-    # Maximum number in seconds after which to return a result even if not
-    # change happenned.
+    # Maximum number in seconds after which to return a result even if no
+    # change happened.
     _long_polling_timeout = 5
     _reactor = reactor
     _enable_xsrf_protection = True



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