Add Set and SetAsync api

Author: cnblogs-dudu

Enyim.Caching/IMemcachedClient.cs

@@ -11,6 +11,9 @@ public interface IMemcachedClient : IDisposable
         void Add(string key, object value, int cacheSeconds);
         Task AddAsync(string key, object value, int cacheSeconds);
 
+        void Set(string key, object value, int cacheSeconds);
+        Task SetAsync(string key, object value, int cacheSeconds);
+
         Task<IGetOperationResult<T>> GetAsync<T>(string key);
         Task<T> GetValueAsync<T>(string key);
         object Get(string key);

Enyim.Caching/MemcachedClient.cs

@@ -98,6 +98,16 @@ public async Task AddAsync(string key, object value, int cacheSeconds)
             await StoreAsync(StoreMode.Add, key, value, new TimeSpan(0, 0, cacheSeconds));
         }
 
+        public void Set(string key, object value, int cacheSeconds)
+        {
+            Store(StoreMode.Set, key, value, new TimeSpan(0, 0, cacheSeconds));
+        }
+
+        public async Task SetAsync(string key, object value, int cacheSeconds)
+        {
+            await StoreAsync(StoreMode.Set, key, value, new TimeSpan(0, 0, cacheSeconds));
+        }
+
         /// <summary>
         /// Retrieves the specified item from the cache.
         /// </summary>

Enyim.Caching/NullMemcachedClient.cs

@@ -230,8 +230,19 @@ public void Add(string key, object value, int cacheSeconds)
         {
         }
 
-        public async Task AddAsync(string key, object value, int cacheSeconds)
+        public Task AddAsync(string key, object value, int cacheSeconds)
         {
+            return Task.CompletedTask;
+        }
+
+        public void Set(string key, object value, int cacheSeconds)
+        {
+
+        }
+
+        public Task SetAsync(string key, object value, int cacheSeconds)
+        {
+            return Task.CompletedTask;
         }
     }
 }