private void ProcessKeyExpiryDates()
{
var nowTicks = TicksHelper.GetTicks64();
var nowTicksDividedBy1024 = (int)(nowTicks >> 10);
while (_keysToBePutIntoExpiryHeapReader.TryRead(out var keyAndExpiry))
{
if (keyAndExpiry.ExpiryTicksDividedBy1024 < nowTicksDividedBy1024)
{
RemoveExpiredKey(keyAndExpiry, nowTicks);
}
else
{
_keysToExpireHeap.Add(keyAndExpiry);
}
}
while (
_keysToExpireHeap.TryPeek(out var nextPeek) &&
nextPeek.ExpiryTicksDividedBy1024 < nowTicksDividedBy1024 &&
_keysToExpireHeap.TryTake(out var next))
{
RemoveExpiredKey(next, nowTicks);
}
_keyExpiryProcessorTimer.Change((int)_keyExpiryProcessorInterval.TotalMilliseconds, -1);
}
protected bool RemoveImpl(TKey key, out TValue value)
{
if (!_values.TryRemove(key, out var valueAndExpiry) ||
valueAndExpiry.ExpiryTicks < TicksHelper.GetTicks64())
{
value = default;
return(false);
}
value = valueAndExpiry.Value;
return(true);
}