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Fix race in ASDisplayNodeRespectThreadAffinityOfNode

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This commit is contained in:
Shannon Ma 2015-08-10 16:42:02 -07:00
parent 6275219f79
commit c26e9c7e94
1 changed files with 20 additions and 16 deletions
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14
AsyncDisplayKit/ASDisplayNode.mm
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@ -71,12 +71,16 @@ void ASDisplayNodeRespectThreadAffinityOfNode(ASDisplayNode *node, void (^block)
return; return;
} }
if (node.nodeLoaded) { {
ASDisplayNodePerformBlockOnMainThread(^{ // Hold the lock to avoid a race where the node gets loaded while the block is in-flight.
ASDN::MutexLocker l(node->_propertyLock);
if (node.nodeLoaded) {
ASDisplayNodePerformBlockOnMainThread(^{
block();
});
} else {
block(); block();
}); }
} else {
block();
} }
} }