public WriteBatch CreateWriteBatch()
{
var writeBatch = new WriteBatch();
try
{
foreach (var update in updates)
{
var txIndex = update.Key;
var blockTxNode = update.Value;
var key = DbEncoder.EncodeBlockHashTxIndex(blockHash, txIndex);
if (blockTxNode != null)
{
writeBatch.Put(key, DataEncoder.EncodeBlockTxNode(blockTxNode));
}
else
{
writeBatch.Delete(key);
}
}
return(writeBatch);
}
catch (Exception)
{
writeBatch.Dispose();
throw;
}
}
public bool TryAddBlockTransactions(UInt256 blockHash, IEnumerable <EncodedTx> blockTxes)
{
if (ContainsBlock(blockHash))
{
return(false);
}
var writeBatch = new WriteBatch();
try
{
int txCount;
using (var snapshot = db.GetSnapshot())
{
var readOptions = new ReadOptions {
Snapshot = snapshot
};
var txIndex = 0;
foreach (var tx in blockTxes)
{
var key = DbEncoder.EncodeBlockHashTxIndex(blockHash, txIndex);
Slice existingValue;
if (db.TryGet(readOptions, key, out existingValue))
{
return(false);
}
var blockTx = new BlockTx(txIndex, tx);
var value = DataEncoder.EncodeBlockTxNode(blockTx);
writeBatch.Put(key, value);
txIndex++;
}
txCount = txIndex;
}
return(TryAddBlockInner(blockHash, txCount, writeBatch));
}
finally
{
writeBatch.Dispose();
}
}
