private List <Task <InteropBlock> > CreateTaskList(BigInteger batchCount, BigInteger[] blockIds = null)
{
List <Task <InteropBlock> > taskList = new List <Task <InteropBlock> >();
if (blockIds == null)
{
var _interopBlockHeight = BigInteger.Parse(OracleReader.GetCurrentHeight("neo", "neo"));
var nextCurrentBlockHeight = _interopBlockHeight + batchCount;
for (var i = _interopBlockHeight; i < nextCurrentBlockHeight; i++)
{
var url = DomainExtensions.GetOracleBlockURL(
"neo", "neo", PBigInteger.FromUnsignedArray(i.ToByteArray(), true));
taskList.Add(CreateTask(url));
}
}
else
{
foreach (var blockId in blockIds)
{
var url = DomainExtensions.GetOracleBlockURL(
"neo", "neo", PBigInteger.FromUnsignedArray(blockId.ToByteArray(), true));
taskList.Add(CreateTask(url));
}
}
return(taskList);
}
public BSCInterop(TokenSwapper swapper, EthAPI ethAPI, PBigInteger interopBlockHeight, string[] contracts, uint confirmations)
: base(swapper, BSCWallet.BSCPlatform)
{
string lastBlockHeight = OracleReader.GetCurrentHeight(BSCWallet.BSCPlatform, BSCWallet.BSCPlatform);
if (string.IsNullOrEmpty(lastBlockHeight))
{
OracleReader.SetCurrentHeight(BSCWallet.BSCPlatform, BSCWallet.BSCPlatform, new BigInteger(interopBlockHeight.ToSignedByteArray()).ToString());
}
Logger.Message($"interopHeight: {OracleReader.GetCurrentHeight(BSCWallet.BSCPlatform, BSCWallet.BSCPlatform)}");
Console.WriteLine("encoded bsc: " + BSCWallet.EncodeAddress("0x44E8743A6CAC3E59594C19DD462863A5AA5E06BB"));
Console.WriteLine("encoded eth: " + EthereumWallet.EncodeAddress("0x44E8743A6CAC3E59594C19DD462863A5AA5E06BB"));
Console.WriteLine("from encoded bsc: " + BSCWallet.EncodeAddress("0xA89a34c37Da826085E458c17067DA2F38b6e4763"));
Console.WriteLine("from encoded eth: " + EthereumWallet.EncodeAddress("0xA89a34c37Da826085E458c17067DA2F38b6e4763"));
this.contracts = contracts.ToList();
// add local swap address to contracts
this.contracts.Add(LocalAddress);
this.confirmations = confirmations;
this.ethAPI = ethAPI;
}
public NeoInterop(TokenSwapper swapper, NeoAPI neoAPI, PBigInteger interopBlockHeight, bool quickSync)
: base(swapper, NeoWallet.NeoPlatform)
{
string lastBlockHeight = OracleReader.GetCurrentHeight("neo", "neo");
if (string.IsNullOrEmpty(lastBlockHeight))
{
OracleReader.SetCurrentHeight("neo", "neo", new BigInteger(interopBlockHeight.ToUnsignedByteArray()).ToString());
}
this.quickSync = quickSync;
Logger.Message($"interopHeight: {OracleReader.GetCurrentHeight("neo", "neo")}");
this.neoAPI = neoAPI;
this.lastScan = DateTime.UtcNow.AddYears(-1);;
}
public EthereumInterop(TokenSwapper swapper, EthAPI ethAPI, PBigInteger interopBlockHeight, string[] contracts, uint confirmations)
: base(swapper, EthereumWallet.EthereumPlatform)
{
string lastBlockHeight = OracleReader.GetCurrentHeight(EthereumWallet.EthereumPlatform, EthereumWallet.EthereumPlatform);
if (string.IsNullOrEmpty(lastBlockHeight))
{
OracleReader.SetCurrentHeight(EthereumWallet.EthereumPlatform, EthereumWallet.EthereumPlatform, new BigInteger(interopBlockHeight.ToSignedByteArray()).ToString());
}
Logger.Message($"interopHeight: {OracleReader.GetCurrentHeight(EthereumWallet.EthereumPlatform, EthereumWallet.EthereumPlatform)}");
this.contracts = contracts.ToList();
// add local swap address to contracts
this.contracts.Add(LocalAddress);
this.confirmations = confirmations;
this.ethAPI = ethAPI;
}
public override IEnumerable <PendingSwap> Update()
{
lock (String.Intern("PendingSetCurrentHeight_" + "neo"))
{
var result = new List <PendingSwap>();
try
{
var _interopBlockHeight = BigInteger.Parse(OracleReader.GetCurrentHeight("neo", "neo"));
// initial start, we have to verify all processed swaps
if (initialStart)
{
Logger.Debug($"Read all neo blocks now.");
// TODO check if quick sync nodes are configured, if so use quick sync
// we need to find a better solution for that though
var allInteropBlocks = OracleReader.ReadAllBlocks("neo", "neo");
Logger.Debug($"Found {allInteropBlocks.Count} blocks");
foreach (var block in allInteropBlocks)
{
try
{
ProcessBlock(block, result);
}
catch (Exception e)
{
Logger.Debug($"Block {block.Hash} was not processed correctly: " + e);
}
}
initialStart = false;
Logger.Debug($"QuickSync: " + quickSync);
// quick sync is only done once after startup
if (quickSync)
{
// if quick sync is active, we can use a specific plugin installed on the nodes (EventTracker)
try
{
var blockIds = neoAPI.GetSwapBlocks("ed07cffad18f1308db51920d99a2af60ac66a7b3", LocalAddress, _interopBlockHeight.ToString());
Logger.Debug($"Found {blockIds.Count} blocks to process ");
List <InteropBlock> blockList = new List <InteropBlock>();
foreach (var entry in blockIds)
{
//logger.Debug($"read block {entry.Value}");
var url = DomainExtensions.GetOracleBlockURL("neo", "neo", PBigInteger.Parse(entry.Value.ToString()));
blockList.Add(OracleReader.Read <InteropBlock>(DateTime.Now, url));
}
// get blocks and order them for processing
var blocksToProcess = blockList.Where(x => blockIds.ContainsKey(x.Hash.ToString()))
.Select(x => new { block = x, id = blockIds[x.Hash.ToString()] })
.OrderBy(x => x.id);
Logger.Debug($"blocks to process: {blocksToProcess.Count()}");
foreach (var entry in blocksToProcess.OrderBy(x => x.id))
{
Logger.Debug($"process block {entry.id}");
ProcessBlock(entry.block, result);
OracleReader.SetCurrentHeight("neo", "neo", _interopBlockHeight.ToString());
_interopBlockHeight = BigInteger.Parse(entry.id.ToString());
}
}
catch (Exception e)
{
Logger.Error("Inital start failed: " + e.ToString());
}
}
// return after the initial start to be able to process all swaps that happend in the mean time.
return(result);
}
var blockIterator = new BlockIterator(neoAPI);
var blockDifference = blockIterator.currentBlock - _interopBlockHeight;
var batchCount = (blockDifference > 8) ? 8 : blockDifference; //TODO make it a constant, should be no more than 8
while (blockIterator.currentBlock > _interopBlockHeight)
{
if (_resyncBlockIds.Any())
{
for (var i = 0; i < _resyncBlockIds.Count; i++)
{
var blockId = _resyncBlockIds.ElementAt(i);
if (blockId > _interopBlockHeight)
{
Logger.Debug($"NeoInterop: Update() resync block {blockId} higher than current interop height, can't resync.");
_resyncBlockIds.RemoveAt(i);
continue;
}
try
{
Logger.Debug($"NeoInterop: Update() resync block {blockId} now.");
var interopBlock = GetInteropBlock(blockId);
ProcessBlock(interopBlock, result);
}
catch (Exception e)
{
Logger.Error($"NeoInterop: Update() resync block {blockId} failed: " + e);
}
_resyncBlockIds.RemoveAt(i);
}
}
Logger.Debug($"Swaps: Current Neo chain height: {blockIterator.currentBlock}, interop: {_interopBlockHeight}, delta: {blockIterator.currentBlock - _interopBlockHeight}");
blockDifference = blockIterator.currentBlock - _interopBlockHeight;
batchCount = (blockDifference > 8) ? 8 : blockDifference;
if (batchCount > 1)
{
List <Task <InteropBlock> > taskList = CreateTaskList(batchCount);
foreach (var task in taskList)
{
task.Start();
}
Task.WaitAll(taskList.ToArray());
foreach (var task in taskList)
{
var block = task.Result;
ProcessBlock(block, result);
}
OracleReader.SetCurrentHeight("neo", "neo", _interopBlockHeight.ToString());
_interopBlockHeight += batchCount;
}
else
{
var interopBlock = GetInteropBlock(_interopBlockHeight);
ProcessBlock(interopBlock, result);
OracleReader.SetCurrentHeight("neo", "neo", _interopBlockHeight.ToString());
_interopBlockHeight++;
}
}
}
catch (Exception e)
{
Logger.Error("Neo block sync failed: " + e);
}
return(result);
}
}
public override IEnumerable <PendingSwap> Update()
{
// wait another 10s to execute eth interop
//Task.Delay(10000).Wait();
try
{
lock (String.Intern("PendingSetCurrentHeight_" + BSCWallet.BSCPlatform))
{
var result = new List <PendingSwap>();
// initial start, we have to verify all processed swaps
if (initialStart)
{
Logger.Debug($"Read all bsc blocks now.");
var allInteropBlocks = OracleReader.ReadAllBlocks(BSCWallet.BSCPlatform, BSCWallet.BSCPlatform);
Logger.Debug($"Found {allInteropBlocks.Count} blocks");
foreach (var block in allInteropBlocks)
{
ProcessBlock(block, ref result);
}
initialStart = false;
// return after the initial start to be able to process all swaps that happend in the mean time.
return(result);
}
var currentHeight = ethAPI.GetBlockHeight();
var _interopBlockHeight = BigInteger.Parse(OracleReader.GetCurrentHeight(BSCWallet.BSCPlatform, BSCWallet.BSCPlatform));
Logger.Debug($"Swaps: Current Eth chain height: {currentHeight}, interop: {_interopBlockHeight}, delta: {currentHeight - _interopBlockHeight}");
var blocksProcessedInOneBatch = 0;
while (blocksProcessedInOneBatch < 50)
{
if (_resyncBlockIds.Any())
{
for (var i = 0; i < _resyncBlockIds.Count; i++)
{
var blockId = _resyncBlockIds.ElementAt(i);
if (blockId > _interopBlockHeight)
{
this.Logger.Warning($"EthInterop:Update() resync block {blockId} higher than current interop height, can't resync.");
_resyncBlockIds.RemoveAt(i);
continue;
}
try
{
this.Logger.Debug($"EthInterop:Update() resync block {blockId} now.");
var block = GetInteropBlock(blockId);
ProcessBlock(block, ref result);
}
catch (Exception e)
{
this.Logger.Error($"EthInterop:Update() resync block {blockId} failed: " + e);
}
_resyncBlockIds.RemoveAt(i);
}
}
blocksProcessedInOneBatch++;
var blockDifference = currentHeight - _interopBlockHeight;
if (blockDifference < confirmations)
{
// no need to query the node yet
break;
}
//TODO quick sync not done yet, requieres a change to the oracle impl to fetch multiple blocks
//var nextHeight = (blockDifference > 50) ? 50 : blockDifference; //TODO
//var transfers = new Dictionary<string, Dictionary<string, List<InteropTransfer>>>();
//if (nextHeight > 1)
//{
// var blockCrawler = new EthBlockCrawler(logger, contracts.ToArray(), 0/*confirmations*/, ethAPI); //TODO settings confirmations
// blockCrawler.Fetch(currentHeight, nextHeight);
// transfers = blockCrawler.ExtractInteropTransfers(logger, LocalAddress);
// foreach (var entry in transfers)
// {
// foreach (var txInteropTransfer in entry.Value)
// {
// foreach (var interopTransfer in txInteropTransfer.Value)
// {
// result.Add(new PendingSwap(
// this.PlatformName
// ,Hash.Parse(entry.Key)
// ,interopTransfer.sourceAddress
// ,interopTransfer.interopAddress)
// );
// }
// }
// }
// _interopBlockHeight = nextHeight;
// oracleReader.SetCurrentHeight(BSCWallet.BSCPlatform, BSCWallet.BSCPlatform, _interopBlockHeight.ToString());
//}
//else
//{
/* Future improvement, implement oracle call to fetch multiple blocks */
var url = DomainExtensions.GetOracleBlockURL(
BSCWallet.BSCPlatform, BSCWallet.BSCPlatform, PBigInteger.FromUnsignedArray(_interopBlockHeight.ToByteArray(), true));
var interopBlock = OracleReader.Read <InteropBlock>(DateTime.Now, url);
ProcessBlock(interopBlock, ref result);
_interopBlockHeight++;
//}
}
OracleReader.SetCurrentHeight(BSCWallet.BSCPlatform, BSCWallet.BSCPlatform, _interopBlockHeight.ToString());
var total = result.Count();
if (total > 0)
{
Logger.Message($"startup: found {total} bsc swaps");
}
else
{
Logger.Debug($"did not find any bsc swaps");
}
return(result);
}
}
catch (Exception e)
{
var logMessage = "BSCInterop.Update() exception caught:\n" + e.Message;
var inner = e.InnerException;
while (inner != null)
{
logMessage += "\n---> " + inner.Message + "\n\n" + inner.StackTrace;
inner = inner.InnerException;
}
logMessage += "\n\n" + e.StackTrace;
Logger.Error(logMessage);
return(new List <PendingSwap>());
}
}