diff options
Diffstat (limited to 'Firebase/Database')
| -rw-r--r-- | Firebase/Database/Snapshot/FEmptyNode.m | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/Firebase/Database/Snapshot/FEmptyNode.m b/Firebase/Database/Snapshot/FEmptyNode.m index dd2d9ea..f41e118 100644 --- a/Firebase/Database/Snapshot/FEmptyNode.m +++ b/Firebase/Database/Snapshot/FEmptyNode.m @@ -21,9 +21,10 @@ + (id<FNode>) emptyNode { static FChildrenNode* empty = nil; - if (empty == nil) { + static dispatch_once_t onceToken; + dispatch_once(&onceToken, ^{ empty = [[FChildrenNode alloc] init]; - } + }); return empty; } @end |