public DataWord GetStorageRow(IEnumerable <byte> scAddr, DataWord key)
{
if (scAddr == null)
{
throw new ArgumentNullException(nameof(scAddr));
}
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
var result = string.Empty;
var scAddrHex = scAddr.ToHexString();
var keyHex = key.GetData().ToHexString();
if (!_db.TryGet(string.Format(SMART_CONTRACT_STORE_ELT, scAddrHex, keyHex), ReadOptions.Default, out result))
{
var cacheDataRow = _cacheDataRows.FirstOrDefault(c => c.Key == string.Format(SMART_CONTRACT_STORE_ELT, scAddrHex, keyHex));
if (cacheDataRow.Equals(default(KeyValuePair <string, string>)) || string.IsNullOrWhiteSpace(cacheDataRow.Value))
{
return(DataWord.ZERO);
}
return(new DataWord(cacheDataRow.Value.FromHexString().ToArray()));
}
return(new DataWord(result.FromHexString().ToArray()));
}
public DataWord XOR(DataWord w2)
{
for (int i = 0; i < _data.Count(); ++i)
{
_data[i] ^= w2.GetData()[i];
}
return(this);
}
public void Add(DataWord word)
{
byte[] result = new byte[32];
for (int i = 31, overflow = 0; i >= 0; i--)
{
int v = (_data[i] & 0xff) + (word.GetData()[i] & 0xff) + overflow;
result[i] = (byte)v;
overflow = v >> 8;
}
_data = result;
}
public bool AddStorageRow(IEnumerable <byte> scAddr, DataWord key, DataWord value, bool addInTransaction = false)
{
if (scAddr == null)
{
throw new ArgumentNullException(nameof(scAddr));
}
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
var writeBatch = new WriteBatch();
if (addInTransaction)
{
writeBatch = _writeBatch;
}
string result = string.Empty;
var scAddrHex = scAddr.ToHexString();
var keyHex = key.GetData().ToHexString();
var valueHex = value.GetData().ToHexString();
if (!_db.TryGet(string.Format(SMART_CONTRACT_ELT, scAddrHex), ReadOptions.Default, out result))
{
return(false);
}
result = string.Empty;
if (_db.TryGet(string.Format(SMART_CONTRACT_STORE_ELT, scAddrHex, keyHex), ReadOptions.Default, out result))
{
writeBatch.Delete(string.Format(SMART_CONTRACT_STORE_ELT, scAddrHex, keyHex));
}
writeBatch.Put(string.Format(SMART_CONTRACT_STORE_ELT, scAddrHex, keyHex), valueHex);
if (!addInTransaction)
{
_db.Write(writeBatch, WriteOptions.Default);
}
else
{
_cacheDataRows.Add(string.Format(SMART_CONTRACT_STORE_ELT, scAddrHex, keyHex), keyHex);
}
return(true);
}
public void SaveMemory(DataWord addrB, DataWord value)
{
_memory.Write(addrB.GetInt(), value.GetData(), value.GetData().Length, false);
}