// Calling thread need to be first lock "_lock"
private ICacheEntry GetInternal(string key)
{
var inUse = _inUse.TryGetValue(key, out DiskCacheEntry entry);
if (inUse)
{
return(entry);
}
var found = _lruCache.TryGetValue(key, out entry);
if (found)
{
// Move from _lruCache to _inUse
_lruCache.Remove(key);
_inUse.TryAdd(key, entry);
return(entry);
}
else
{
return(new EmptyCacheEntry());
}
}
public Task RemoveAsync(string key, CancellationToken ct)
{
_cache.Remove(key);
return(Task.CompletedTask);
}