void MakeWrittable()
{
if (_writting)
{
return;
}
if (_preapprovedWritting)
{
_writting = true;
_preapprovedWritting = false;
_keyValueDB.WriteStartTransaction();
return;
}
if (_readOnly)
{
throw new BTDBTransactionRetryException("Cannot write from readOnly transaction");
}
var oldBTreeRoot = BtreeRoot;
_btreeRoot = _keyValueDB.MakeWrittableTransaction(this, oldBTreeRoot);
_keyValueDB.StartedUsingBTreeRoot(_btreeRoot);
_keyValueDB.FinishedUsingBTreeRoot(oldBTreeRoot);
_btreeRoot.DescriptionForLeaks = _descriptionForLeaks;
_writting = true;
InvalidateCurrentKey();
_keyValueDB.WriteStartTransaction();
}
public KeyValueDBTransaction(KeyValueDB keyValueDB, IBTreeRootNode btreeRoot, bool writing, bool readOnly)
{
_preapprovedWriting = writing;
_readOnly = readOnly;
_keyValueDB = keyValueDB;
_btreeRoot = btreeRoot;
_keyIndex = -1;
_cursorMovedCounter = 0;
_keyValueDB.StartedUsingBTreeRoot(_btreeRoot);
}
public KeyValueDBTransaction(KeyValueDB keyValueDB, IBTreeRootNode btreeRoot, bool writting, bool readOnly)
{
_preapprovedWritting = writting;
_readOnly = readOnly;
_keyValueDB = keyValueDB;
_btreeRoot = btreeRoot;
_prefix = BitArrayManipulation.EmptyByteArray;
_prefixKeyStart = 0;
_prefixKeyCount = -1;
_keyIndex = -1;
_keyValueDB.StartedUsingBTreeRoot(_btreeRoot);
}
