public bool Set(TKey key, TValue value)
{
if (cacheMap.TryGetValue(key, out var node))
{
node.Value.Value = value;
cacheHistory.Remove(node);
cacheHistory.AddLast(node);
cacheMap[key] = node;
return(true);
}
if (cacheMap.Count >= capacity)
{
RemoveFirst();
}
var cacheItem = new LRUCacheItem <TKey, TValue> {
Key = key, Value = value
};
node = new LinkedListNode <LRUCacheItem <TKey, TValue> >(cacheItem);
cacheMap.Add(key, node);
cacheHistory.AddLast(node);
return(false);
}
public bool Set(object key, object value)
{
Guard.NotNull(key, nameof(key));
if (cacheMap.TryGetValue(key, out var node))
{
node.Value.Value = value;
cacheHistory.Remove(node);
cacheHistory.AddLast(node);
cacheMap[key] = node;
return(true);
}
else
{
if (cacheMap.Count >= capacity)
{
RemoveFirst();
}
var cacheItem = new LRUCacheItem {
Key = key, Value = value
};
node = new LinkedListNode <LRUCacheItem>(cacheItem);
cacheMap.Add(key, node);
cacheHistory.AddLast(node);
return(false);
}
}