private static byte[] putRequest(BigInteger chainID, BigInteger requestID, CrossChainTxParameter para)
{
requestID = requestID + 1;
byte[] requestKey = requestPreifx.Concat(chainID.ToByteArray()).Concat(requestID.ToByteArray());
Storage.Put(requestKey, WriteCrossChainTxParameter(para));
Storage.Put(requestIDPrefix.Concat(chainID.ToByteArray()), requestID);
return(requestKey);
}
private static byte[] WriteCrossChainTxParameter(CrossChainTxParameter para)
{
byte[] result = new byte[] { };
result = WriteVarBytes(result, para.txHash);
result = WriteVarBytes(result, para.crossChainID);
result = WriteVarBytes(result, para.fromContract);
byte[] toChainIDBytes = PadRight(para.toChainID.AsByteArray(), 8);
result = result.Concat(toChainIDBytes);
result = WriteVarBytes(result, para.toContract);
result = WriteVarBytes(result, para.method);
result = WriteVarBytes(result, para.args);
return(result);
}
private static CrossChainTxParameter deserializCrossChainTxParameter(byte[] Source, int offset)
{
CrossChainTxParameter txParameter = new CrossChainTxParameter();
//get txHash
var temp = ReadVarBytes(Source, offset);
txParameter.txHash = (byte[])temp[0];
offset = (int)temp[1];
//get crossChainId
temp = ReadVarBytes(Source, offset);
txParameter.crossChainID = (byte[])temp[0];
offset = (int)temp[1];
//get fromContract
temp = ReadVarBytes(Source, offset);
txParameter.fromContract = (byte[])temp[0];
offset = (int)temp[1];
//get toChainID
txParameter.toChainID = Source.Range(offset, 8).ToBigInteger();
offset = offset + 8;
//get toContract
temp = ReadVarBytes(Source, offset);
txParameter.toContract = (byte[])temp[0];
offset = (int)temp[1];
//get method
temp = ReadVarBytes(Source, offset);
txParameter.method = (byte[])temp[0];
offset = (int)temp[1];
//get params
temp = ReadVarBytes(Source, offset);
txParameter.args = (byte[])temp[0];
offset = (int)temp[1];
return(txParameter);
}
public static bool CrossChain(BigInteger toChainID, byte[] toChainAddress, byte[] functionName, byte[] args, byte[] caller)
{
var tx = (Transaction)ExecutionEngine.ScriptContainer;
CrossChainTxParameter para = new CrossChainTxParameter
{
toChainID = toChainID,
toContract = toChainAddress,
method = functionName,
args = args,
txHash = tx.Hash,
crossChainID = SmartContract.Sha256(ExecutionEngine.ExecutingScriptHash.Concat(tx.Hash)),
fromContract = caller
};
var requestId = getRequestID(toChainID);
var resquestKey = putRequest(toChainID, requestId, para);
//event
CrossChainLockEvent(caller, para.fromContract, toChainID, resquestKey, para.args);
return(true);
}
