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Just crete weak cache in iOS/tvOS platform

This commit is contained in:
kinarob 2019-07-12 10:09:38 +08:00
parent 2d62616cb0
commit f319864dd8
1 changed files with 5 additions and 4 deletions
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9
SDWebImage/SDMemoryCache.m
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@ -16,9 +16,10 @@ static void * SDMemoryCacheContext = &SDMemoryCacheContext;
@interface SDMemoryCache <KeyType, ObjectType> ()
@property (nonatomic, strong, nullable) SDImageCacheConfig *config;
#if SD_UIKIT
@property (nonatomic, strong, nonnull) NSMapTable<KeyType, ObjectType> *weakCache; // strong-weak cache
@property (nonatomic, strong, nonnull) dispatch_semaphore_t weakCacheLock; // a lock to keep the access to `weakCache` thread-safe
#endif
@end
@implementation SDMemoryCache
@ -50,9 +51,6 @@ static void * SDMemoryCacheContext = &SDMemoryCacheContext;
}
- (void)commonInit {
self.weakCache = [[NSMapTable alloc] initWithKeyOptions:NSPointerFunctionsStrongMemory valueOptions:NSPointerFunctionsWeakMemory capacity:0];
self.weakCacheLock = dispatch_semaphore_create(1);
SDImageCacheConfig *config = self.config;
self.totalCostLimit = config.maxMemoryCost;
self.countLimit = config.maxMemoryCount;
@ -61,6 +59,9 @@ static void * SDMemoryCacheContext = &SDMemoryCacheContext;
[config addObserver:self forKeyPath:NSStringFromSelector(@selector(maxMemoryCount)) options:0 context:SDMemoryCacheContext];
#if SD_UIKIT
self.weakCache = [[NSMapTable alloc] initWithKeyOptions:NSPointerFunctionsStrongMemory valueOptions:NSPointerFunctionsWeakMemory capacity:0];
self.weakCacheLock = dispatch_semaphore_create(1);
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(didReceiveMemoryWarning:)
name:UIApplicationDidReceiveMemoryWarningNotification