From c7f2665d05b93d2162ee35bc17f9fa2fccd2b80b Mon Sep 17 00:00:00 2001
From: Joshua Gross <jgross@yahoo-inc.com>
Date: Fri, 22 Nov 2013 16:16:03 -0800
Subject: [PATCH 1/2] Allow setting a custom memory cost limit for the
 in-memory NSCache. This can help to keep memory down before memory warnings
 are sent by the device.

---
 SDWebImage/SDImageCache.h | 5 +++++
 SDWebImage/SDImageCache.m | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/SDWebImage/SDImageCache.h b/SDWebImage/SDImageCache.h
index 4a571c1c..c6b63f9b 100644
--- a/SDWebImage/SDImageCache.h
+++ b/SDWebImage/SDImageCache.h
@@ -32,6 +32,11 @@ typedef enum SDImageCacheType SDImageCacheType;
  */
 @interface SDImageCache : NSObject
 
+/**
+ * The maximum "total cost" of the in-memory image cache. The cost function is the number of pixels held in memory.
+ */
+@property (assign, nonatomic) NSInteger maxMemoryCost;
+
 /**
  * The maximum length of time to keep an image in the cache, in seconds
  */
diff --git a/SDWebImage/SDImageCache.m b/SDWebImage/SDImageCache.m
index e55ec71a..c8748c3f 100644
--- a/SDWebImage/SDImageCache.m
+++ b/SDWebImage/SDImageCache.m
@@ -338,6 +338,11 @@ static const NSInteger kDefaultCacheMaxCacheAge = 60 * 60 * 24 * 7; // 1 week
     }
 }
 
+- (void)setMaxMemoryCost:(NSInteger)maxMemoryCost
+{
+    self.memCache.totalCostLimit = maxMemoryCost;
+}
+
 - (void)clearMemory
 {
     [self.memCache removeAllObjects];

From c3ee5896816ad92580e831c624786d912a4500c5 Mon Sep 17 00:00:00 2001
From: Joshua Gross <jgross@yahoo-inc.com>
Date: Fri, 22 Nov 2013 16:38:18 -0800
Subject: [PATCH 2/2] NSInteger -> NSUInteger, add getter method

---
 SDWebImage/SDImageCache.h | 2 +-
 SDWebImage/SDImageCache.m | 7 ++++++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/SDWebImage/SDImageCache.h b/SDWebImage/SDImageCache.h
index c6b63f9b..7a76ca19 100644
--- a/SDWebImage/SDImageCache.h
+++ b/SDWebImage/SDImageCache.h
@@ -35,7 +35,7 @@ typedef enum SDImageCacheType SDImageCacheType;
 /**
  * The maximum "total cost" of the in-memory image cache. The cost function is the number of pixels held in memory.
  */
-@property (assign, nonatomic) NSInteger maxMemoryCost;
+@property (assign, nonatomic) NSUInteger maxMemoryCost;
 
 /**
  * The maximum length of time to keep an image in the cache, in seconds
diff --git a/SDWebImage/SDImageCache.m b/SDWebImage/SDImageCache.m
index c8748c3f..8ffed7b1 100644
--- a/SDWebImage/SDImageCache.m
+++ b/SDWebImage/SDImageCache.m
@@ -338,11 +338,16 @@ static const NSInteger kDefaultCacheMaxCacheAge = 60 * 60 * 24 * 7; // 1 week
     }
 }
 
-- (void)setMaxMemoryCost:(NSInteger)maxMemoryCost
+- (void)setMaxMemoryCost:(NSUInteger)maxMemoryCost
 {
     self.memCache.totalCostLimit = maxMemoryCost;
 }
 
+- (NSUInteger)maxMemoryCost
+{
+    return self.memCache.totalCostLimit;
+}
+
 - (void)clearMemory
 {
     [self.memCache removeAllObjects];