public long EnsureKeyExistsSafely(string keyStr)
{
var keyHash = keyStr.ToHash();
long keyId;
if (!_sessionFactory.TryGetKeyId(_collectionId, keyHash, out keyId))
{
lock (_keyLock)
{
if (!_sessionFactory.TryGetKeyId(_collectionId, keyHash, out keyId))
{
// We have a new key!
// store key
var keyInfo = PutKey(keyStr);
keyId = PutKeyInfo(keyInfo.offset, keyInfo.len, keyInfo.dataType);
// store key mapping
_sessionFactory.RegisterKeyMapping(_collectionId, keyHash, keyId);
}
}
}
return(keyId);
}
