public void AddOrUpdate(TKey key, TValue value)
{
lock (cacheLock)
{
if (cache.TryGetValue(key, out LruListItem <TKey, TValue> value2))
{
value2.Value = value;
lruList.Touch(value2);
}
else
{
LruListItem <TKey, TValue> lruListItem = new LruListItem <TKey, TValue>(key, value);
while (cache.Count >= MaxEntries)
{
cache.Remove(lruList.EvictOldest());
}
lruList.Add(lruListItem);
cache.Add(key, lruListItem);
}
}
}
/// <summary>
/// Add the key/value pair to the cache, or update
/// the value if the key already exists.
///
/// If the cache is full, evicts the least recently used item.
/// </summary>
/// <param name="key"></param>
/// <param name="value"></param>
public void AddOrUpdate(TKey key, TValue value)
{
lock (cacheLock)
{
LruListItem <TKey, TValue> existingLruListItem;
if (cache.TryGetValue(key, out existingLruListItem))
{
// update
existingLruListItem.Value = value;
lruList.Touch(existingLruListItem);
}
else
{
// add
var newLruListItem = new LruListItem <TKey, TValue>(key, value);
while (cache.Count >= MaxEntries)
{
cache.Remove(lruList.EvictOldest());
}
lruList.Add(newLruListItem);
cache.Add(key, newLruListItem);
}
}
}