async void cleanLoop()
{
await ThreadingUtils.ContinueAtDedicatedThread();
while (true)
{
try
{
CacheEntry[] entries;
using (await _storage.LockAsync())
{
entries = _storage.Entries.ToArray();
}
var entriesToRemove = new List <CacheEntry>();
var actualSize = entries.Sum(e => e.ApproximateSizeInMemory);
if (actualSize > _maxCacheSize)
{
var delta = _maxCacheSize - _maxCacheSize;
foreach (var entry in entries.Shake(new Random()))
{
delta -= entry.ApproximateSizeInMemory;
entriesToRemove.Add(entry);
if (delta <= 0)
{
break;
}
}
}
foreach (var entry in entriesToRemove)
{
await _storage.TryRemoveAsync(entry);
}
}
catch { }
finally
{
await Task.Delay(1 * 60 * 1000);
}
}
}