private string SendTransaction(JObject opts)
{
var from = opts["from"]?.ToString().HexToBytes().ToUInt160() ??
_systemContractReader.NodeAddress();
var to = opts["to"]?.ToString().HexToBytes().ToUInt160() ??
throw new Exception($"\"to\" {opts["to"]} is not valid");
var value = Money.Parse(opts["amount"]?.ToString() ??
throw new Exception($"\"amount\" {opts["amount"]} is not valid")
);
var invocation = opts["data"]?.ToString().HexToBytes();
var nonce = _transactionPool.GetNextNonceForAddress(from);
var tx = new Transaction
{
To = to,
From = from,
GasPrice = (ulong)_stateManager.CurrentSnapshot.NetworkGasPrice,
/* TODO: "calculate gas limit for input size" */
GasLimit = 10000000,
Nonce = nonce,
Value = value.ToUInt256(),
Invocation = ByteString.CopyFrom(invocation)
};
return(AddTxToPool(tx));
}
public void TestTxPoolAdding()
{
bool useNewChainId = HardforkHeights.IsHardfork_9Active(_blockManager.GetHeight() + 1);
var tx = TestUtils.GetRandomTransaction(useNewChainId);
var result = _transactionPool.Add(tx);
Assert.AreEqual(OperatingError.InsufficientBalance, result);
_stateManager.LastApprovedSnapshot.Balances.AddBalance(tx.Transaction.From, Money.Parse("1000"));
result = _transactionPool.Add(tx);
Assert.AreEqual(OperatingError.Ok, result);
result = _transactionPool.Add(tx);
Assert.AreEqual(OperatingError.AlreadyExists, result);
var tx2 = TestUtils.GetRandomTransaction(useNewChainId);
tx2.Transaction.Nonce++;
result = _transactionPool.Add(tx2);
Assert.AreEqual(OperatingError.InvalidNonce, result);
/* TODO: maybe we should fix this strange behaviour */
var tx3 = TestUtils.GetRandomTransaction(useNewChainId);
tx3.Transaction.From = UInt160Utils.Zero;
tx3.Transaction.Nonce = _transactionPool.GetNextNonceForAddress(UInt160Utils.Zero);
result = _transactionPool.Add(tx3);
Assert.AreEqual(OperatingError.Ok, result);
}
private void _Bench_Execute_Blocks(
ITransactionBuilder transactionBuilder,
ITransactionSigner transactionSigner,
EcdsaKeyPair keyPair)
{
const int txGenerate = 50;
const int txPerBlock = 10;
Logger.LogInformation($"Setting initial balance for the 'From' address");
_stateManager.LastApprovedSnapshot.Balances.AddBalance(keyPair.PublicKey.GetAddress(),
Money.Parse("2000000"));
for (var k = 0; k < txGenerate / txPerBlock; k++)
{
var txReceipts = new List <TransactionReceipt>();
var watch = System.Diagnostics.Stopwatch.StartNew();
for (int i = 0; i < txPerBlock; i++)
{
var randomValue = new Random().Next(1, 100);
var amount = Money.Parse($"{randomValue}.0").ToUInt256();
byte[] random = new byte[32];
RNGCryptoServiceProvider rng = new RNGCryptoServiceProvider();
rng.GetBytes(random);
var tx = new Transaction
{
To = random.Slice(0, 20).ToUInt160(),
From = keyPair.PublicKey.GetAddress(),
GasPrice = (ulong)Money.Parse("0.0000001").ToWei(),
GasLimit = 100000000,
Nonce = _transactionPool.GetNextNonceForAddress(keyPair.PublicKey.GetAddress()) + (ulong)i,
Value = amount
};
txReceipts.Add(transactionSigner.Sign(tx, keyPair, true));
}
watch.Stop();
Console.WriteLine($"Building TXs Time: {watch.ElapsedMilliseconds} ms");
Block block = null !;
watch.Restart();
block = BuildBlock(txReceipts.ToArray());
watch.Stop();
Console.WriteLine($"Building Block Time: {watch.ElapsedMilliseconds} ms");
watch.Restart();
ExecuteBlock(block, txReceipts.ToArray());
watch.Stop();
Console.WriteLine($"Block Emulation + Execution Time: {watch.ElapsedMilliseconds} ms");
var executedBlock =
_stateManager.LastApprovedSnapshot.Blocks.GetBlockByHeight(block !.Header.Index);
Console.WriteLine($"Executed Transactions: {executedBlock!.TransactionHashes.Count}");
Console.WriteLine(
$"Balance After Transaction {_stateManager.LastApprovedSnapshot.Balances.GetBalance(keyPair.PublicKey.GetAddress())}");
}
}
private TransactionReceipt TopUpBalanceTx(UInt160 to, UInt256 value, int nonceInc, bool useNewChainId)
{
var keyPair = new EcdsaKeyPair("0xd95d6db65f3e2223703c5d8e205d98e3e6b470f067b0f94f6c6bf73d4301ce48"
.HexToBytes().ToPrivateKey());
var tx = new Transaction
{
To = to,
From = keyPair.PublicKey.GetAddress(),
GasPrice = (ulong)Money.Parse("0.0000001").ToWei(),
GasLimit = 4_000_000,
Nonce = _transactionPool.GetNextNonceForAddress(keyPair.PublicKey.GetAddress()) +
(ulong)nonceInc,
Value = value
};
return(Signer.Sign(tx, keyPair, useNewChainId));
}
public string GetTransactionCount(string from, string blockId)
{
ulong nonce;
if (blockId.Equals("pending"))
{
nonce = _transactionPool.GetNextNonceForAddress(from.HexToUInt160());
}
else
{
nonce = GetSnapshotByTag(blockId) !.Transactions.GetTotalTransactionCount(from.HexToUInt160());
}
return(Web3DataFormatUtils.Web3Number(nonce));
}
public Transaction TransferTransaction(UInt160 from, UInt160 to, Money value, ulong gasPrice, byte[]?input)
{
var nonce = _transactionPool.GetNextNonceForAddress(from);
if (gasPrice == 0)
{
gasPrice = (ulong)_stateManager.CurrentSnapshot.NetworkGasPrice;
}
var tx = new Transaction
{
To = to,
Value = value.ToUInt256(),
From = from,
GasPrice = gasPrice,
GasLimit = GasMetering.DefaultBlockGasLimit,
Nonce = nonce
};
if (input != null)
{
tx.Invocation = ByteString.CopyFrom(input);
}
return(tx);
}