public SpentTransactionsStorage(string baseDirectory)
: base(baseDirectory, "SpentTransactions",
keyPairs =>
{
using (var stream = new MemoryStream())
{
foreach (var keyPair in keyPairs)
{
DataEncoder.EncodeUInt256(stream, keyPair.Key);
DataEncoder.EncodeSpentTx(stream, keyPair.Value);
}
return(stream.ToArray());
}
},
(blockHash, bytes) =>
{
using (var stream = new MemoryStream(bytes))
{
var keyPairs = ImmutableList.CreateBuilder <KeyValuePair <UInt256, SpentTx> >();
while (stream.Position < stream.Length)
{
var txHash = DataEncoder.DecodeUInt256(stream);
var spentTx = DataEncoder.DecodeSpentTx(stream);
keyPairs.Add(new KeyValuePair <UInt256, SpentTx>(txHash, spentTx));
}
return(keyPairs.ToImmutable());
}
})
{ }
public bool TryAddBlockSpentTxes(int blockIndex, BlockSpentTxes spentTxes)
{
CheckWriteTransaction();
try
{
using (SetSessionContext())
using (var jetUpdate = this.jetSession.BeginUpdate(this.spentTxTableId, JET_prep.Insert))
{
byte[] spentTxesBytes;
using (var stream = new MemoryStream())
using (var writer = new BinaryWriter(stream))
{
writer.WriteList <SpentTx>(spentTxes, spentTx => DataEncoder.EncodeSpentTx(writer, spentTx));
spentTxesBytes = stream.ToArray();
}
Api.SetColumns(this.jetSession, this.spentTxTableId,
new Int32ColumnValue {
Columnid = this.spentSpentBlockIndexColumnId, Value = blockIndex
},
new BytesColumnValue {
Columnid = this.spentDataColumnId, Value = spentTxesBytes
});
jetUpdate.Save();
}
return(true);
}
catch (EsentKeyDuplicateException)
{
return(false);
}
}
public bool TryAddBlockSpentTxes(int blockIndex, IImmutableList <SpentTx> spentTxes)
{
try
{
using (var jetUpdate = this.jetSession.BeginUpdate(this.spentTxTableId, JET_prep.Insert))
{
byte[] spentTxesBytes;
using (var stream = new MemoryStream())
using (var writer = new BinaryWriter(stream))
{
writer.WriteList(spentTxes.ToImmutableArray(), spentTx => DataEncoder.EncodeSpentTx(stream, spentTx));
spentTxesBytes = stream.ToArray();
}
Api.SetColumn(this.jetSession, this.spentTxTableId, this.spentSpentBlockIndexColumnId, blockIndex);
Api.SetColumn(this.jetSession, this.spentTxTableId, this.spentDataColumnId, spentTxesBytes);
jetUpdate.Save();
}
return(true);
}
catch (EsentKeyDuplicateException)
{
return(false);
}
}