private ChecksumObject SaveAndReturn(object key, ChecksumObject checksumObject, ChecksumObjectCache entry = null)
{
// create new entry if it is not already given
ChecksumObjectCache self;
if (_cache.TryGetValue(key, out self))
{
// we already have entry
return(self.Add(checksumObject));
}
// either create new entry or re-use given one. this will let us share
// whole sub checksum tree that is associated with given green node (key)
entry = _cache.GetOrAdd(key, _ => entry ?? new ChecksumObjectCache());
return(entry.Add(checksumObject));
}
private ChecksumObject SaveAndReturn(object key, ChecksumObject checksumObject, ChecksumObjectCache entry = null)
{
// create new entry if it is not already given
entry = _cache.GetOrAdd(key, _ => entry ?? new ChecksumObjectCache(checksumObject));
return(entry.Add(checksumObject));
}
