public Task EvictKeyAsync(TKey key)
{
return(_taskFactory.StartNew(() =>
{
lock (_cache)
{
if (_cache.ContainsKey(key))
{
var value = _cache[key];
_cache.Remove(key);
KeyEvicted?.Invoke(this, new KeyEvictedEventArgs <TKey, TValue>(key, value));
}
else
{
throw new KeyNotFoundException($"Missing Key:{key}");
}
}
}));
}
public Task RemoveKeyAsync(TKey key)
{
return(_taskFactory.StartNew(() =>
{
lock (_cache)
{
if (_cache.ContainsKey(key))
{
var value = _cache[key];
_backingStore.RemoveKey(key);
_cache.Remove(key);
KeyEvicted?.Invoke(this, new KeyEvictedEventArgs <TKey, TValue>(key, value));
}
else
{
_backingStore.RemoveKey(key);
}
}
}));
}