gistfile1.m

@interface NSURLCacheEx : NSURLCache {
}
+ (NSURLCacheEx *)sharedURLCache;
- (void)setMemoryCapacity:(NSUInteger)memCap;
- (int)memoryCapacity;
@end

@implementation NSURLCacheEx
+ (NSURLCacheEx *)sharedURLCache
{
    return (NSURLCacheEx *)[super sharedURLCache];
}
-(void)setMemoryCapacity:(NSUInteger)memCap
{
    DBGNSLOG(@"setMemoryCapacity %d", memCap);
    if (memCap == 0)
        return;
    [super setMemoryCapacity:memCap];
}
-(int)memoryCapacity
{
    int mc = [super memoryCapacity];
    DBGNSLOG(@"memoryCapacity %d", mc);
    return mc;
}
@end