public void AddBlock(Block block, IEnumerable <Transaction> transactions, OracleReaderDelegate oracleReader)
{
/*if (CurrentEpoch != null && CurrentEpoch.IsSlashed(Timestamp.Now))
* {
* return false;
* }*/
if (LastBlock != null)
{
if (LastBlock.Height != block.Height - 1)
{
throw new BlockGenerationException($"height of block should be {LastBlock.Height + 1}");
}
if (block.PreviousHash != LastBlock.Hash)
{
throw new BlockGenerationException($"previous hash should be {LastBlock.PreviousHash}");
}
}
var inputHashes = new HashSet <Hash>(transactions.Select(x => x.Hash));
foreach (var hash in block.TransactionHashes)
{
if (!inputHashes.Contains(hash))
{
throw new BlockGenerationException($"missing in inputs transaction with hash {hash}");
}
}
var outputHashes = new HashSet <Hash>(block.TransactionHashes);
foreach (var tx in transactions)
{
if (!outputHashes.Contains(tx.Hash))
{
throw new BlockGenerationException($"missing in outputs transaction with hash {tx.Hash}");
}
}
foreach (var tx in transactions)
{
if (!tx.IsValid(this))
{
throw new InvalidTransactionException(tx.Hash, $"invalid transaction with hash {tx.Hash}");
}
}
var changeSet = new StorageChangeSetContext(this.Storage);
foreach (var tx in transactions)
{
byte[] result;
if (tx.Execute(this, block, changeSet, block.Notify, oracleReader, out result))
{
if (result != null)
{
block.SetResultForHash(tx.Hash, result);
}
}
else
{
throw new InvalidTransactionException(tx.Hash, $"transaction execution failed with hash {tx.Hash}");
}
}
// from here on, the block is accepted
_blockHeightMap[block.Height] = block;
_blocks[block.Hash] = block;
_blockChangeSets[block.Hash] = changeSet;
changeSet.Execute();
if (CurrentEpoch == null)
{
GenerateEpoch();
}
CurrentEpoch.AddBlockHash(block.Hash);
CurrentEpoch.UpdateHash();
LastBlock = block;
foreach (Transaction tx in transactions)
{
_transactions[tx.Hash] = tx;
_transactionBlockMap[tx.Hash] = block.Hash;
}
Nexus.PluginTriggerBlock(this, block);
}
internal bool Execute(Chain chain, Block block, StorageChangeSetContext changeSet, Action <Hash, Event> onNotify, OracleReaderDelegate oracleReader, out byte[] result)
{
result = null;
var runtime = new RuntimeVM(this.Script, chain, block, this, changeSet, false);
runtime.OracleReader = oracleReader;
var state = runtime.Execute();
if (state != ExecutionState.Halt)
{
return(false);
}
var cost = runtime.UsedGas;
// fee distribution TODO
// if (chain.NativeTokenAddress != null && cost > 0)
{
//chain.TransferToken(this.PublicKey, chain.DistributionPubKey, cost);
}
foreach (var evt in runtime.Events)
{
onNotify(this.Hash, evt);
}
if (runtime.Stack.Count > 0)
{
var obj = runtime.Stack.Pop();
result = Serialization.Serialize(obj);
}
return(true);
}
internal bool Execute(Chain chain, Block block, StorageChangeSetContext changeSet, Action <Hash, Event> onNotify, OracleReaderDelegate oracleReader, out byte[] result)
{
result = null;
var runtime = new RuntimeVM(this.Script, chain, block, this, changeSet, false);
runtime.ThrowOnFault = true;
runtime.OracleReader = oracleReader;
var state = runtime.Execute();
if (state != ExecutionState.Halt)
{
return(false);
}
var cost = runtime.UsedGas;
foreach (var evt in runtime.Events)
{
onNotify(this.Hash, evt);
}
if (runtime.Stack.Count > 0)
{
var obj = runtime.Stack.Pop();
result = Serialization.Serialize(obj);
}
return(true);
}
public void AddBlock(Block block, IEnumerable <Transaction> transactions, OracleReaderDelegate oracleReader)
{
/*if (CurrentEpoch != null && CurrentEpoch.IsSlashed(Timestamp.Now))
* {
* return false;
* }*/
if (LastBlock != null)
{
if (LastBlock.Height != block.Height - 1)
{
throw new BlockGenerationException($"height of block should be {LastBlock.Height + 1}");
}
if (block.PreviousHash != LastBlock.Hash)
{
throw new BlockGenerationException($"previous hash should be {LastBlock.PreviousHash}");
}
}
var inputHashes = new HashSet <Hash>(transactions.Select(x => x.Hash));
foreach (var hash in block.TransactionHashes)
{
if (!inputHashes.Contains(hash))
{
throw new BlockGenerationException($"missing in inputs transaction with hash {hash}");
}
}
var outputHashes = new HashSet <Hash>(block.TransactionHashes);
foreach (var tx in transactions)
{
if (!outputHashes.Contains(tx.Hash))
{
throw new BlockGenerationException($"missing in outputs transaction with hash {tx.Hash}");
}
}
foreach (var tx in transactions)
{
if (!tx.IsValid(this))
{
throw new InvalidTransactionException(tx.Hash, $"invalid transaction with hash {tx.Hash}");
}
}
var changeSet = new StorageChangeSetContext(this.Storage);
foreach (var tx in transactions)
{
byte[] result;
try
{
if (tx.Execute(this, block, changeSet, block.Notify, oracleReader, out result))
{
if (result != null)
{
block.SetResultForHash(tx.Hash, result);
}
}
else
{
throw new InvalidTransactionException(tx.Hash, $"execution failed");
}
}
catch (Exception e)
{
if (e.InnerException != null)
{
e = e.InnerException;
}
throw new InvalidTransactionException(tx.Hash, e.Message);
}
}
// from here on, the block is accepted
_blockHeightMap[block.Height] = block;
_blocks[block.Hash] = block;
_blockChangeSets[block.Hash] = changeSet;
changeSet.Execute();
if (CurrentEpoch == null)
{
GenerateEpoch();
}
CurrentEpoch.AddBlockHash(block.Hash);
CurrentEpoch.UpdateHash();
Dictionary <string, BigInteger> synchMap = null;
foreach (Transaction tx in transactions)
{
_transactions[tx.Hash] = tx;
_transactionBlockMap[tx.Hash] = block.Hash;
var evts = block.GetEventsForTransaction(tx.Hash);
foreach (var evt in evts)
{
if (evt.Kind == EventKind.TokenMint || evt.Kind == EventKind.TokenBurn || evt.Kind == EventKind.TokenReceive || evt.Kind == EventKind.TokenSend)
{
if (synchMap == null)
{
synchMap = new Dictionary <string, BigInteger>();
var eventData = evt.GetContent <TokenEventData>();
var balance = synchMap.ContainsKey(eventData.symbol) ? synchMap[eventData.symbol] : 0;
if (evt.Kind == EventKind.TokenBurn || evt.Kind == EventKind.TokenSend)
{
balance -= eventData.value;
}
else
{
balance += eventData.value;
}
synchMap[eventData.symbol] = balance;
}
}
}
}
if (synchMap != null)
{
SynchronizeSupplies(synchMap);
}
Nexus.PluginTriggerBlock(this, block);
}
