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Merge pull request #2556 from zhongwuzw/fix_nsmaptable_crash 

Fix crash when NSMapTable empty keys
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DreamPiggy 2018-12-13 19:36:21 +08:00 committed by GitHub
parent 9c527f0ebe 216ba9c7e1
commit 87f5f8b42f
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1 changed files with 3 additions and 1 deletions
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4
SDWebImage/SDImageCache.m
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@ -82,7 +82,9 @@ FOUNDATION_STATIC_INLINE NSUInteger SDCacheCostForImage(UIImage *image) {
if (key && obj) {
// Store weak cache
LOCK(self.weakCacheLock);
[self.weakCache setObject:obj forKey:key];
// Do the real copy of the key and only let NSMapTable manage the key's lifetime
// Fixes issue #2507 https://github.com/SDWebImage/SDWebImage/issues/2507
[self.weakCache setObject:obj forKey:[[key mutableCopy] copy]];
UNLOCK(self.weakCacheLock);
}
}