protected TransactionInfo AddToPoolAndReserve()
{
lock (this) {
TransactionInfo transInfo = null;
while (transInfo == null)
{
transInfo = BuildTransactionInfo();
transInfo.Reserve();
//drivers doesn't ensure connection is good so make sure
if (transInfo.Transaction.Connection == null || transInfo.Transaction.Connection.State == ConnectionState.Closed)
{
if (transInfo.Transaction.Connection != null)
{
transInfo.ReturnConnectionToPool();
}
LogException(new InvalidTransactionException("Connection in transaction is null."), new StackTrace(), "Releasing connection pools and retrying");
transInfo = null; // retry;
TransactionService.ReleasePooledConnections("Connection in transaction is null.");
Thread.Sleep(TransactionServiceConstants.RETRY_CONNECTION_TIME);
}
}
#if DEBUG_DBCONNECTIONPOOLING
OSTrace.Info("DBConnectionPooling[TID=" + transInfo.Transaction.GetHashCode() + "] - reserved from pool");
OSTrace.Error(new StackTrace().ToString());
#endif
TransactionPool.Add(transInfo.Transaction, transInfo);
return(transInfo);
}
}
public async Task Merge(Pool pool)
{
await DepositPool.Add(await pool.DepositPool.GetPool());
await OfferPool.Add(await pool.OfferPool.GetPool());
await OfferCancelPool.Add(await pool.OfferCancelPool.GetPool());
await TransactionPool.Add(await pool.TransactionPool.GetPool());
await WithdrawalPool.Add(await pool.WithdrawalPool.GetPool());
}
public async void AddTransaction(string message)
{
var guid = Guid.NewGuid();
var transaction = new Transaction {
Timestamp = DateTime.UtcNow, Message = message
};
TransactionPool.Add(transaction);
OnTransactionPoolChanged();
await Task.Run(async() => {
foreach (var node in Nodes)
{
try {
(await httpClient_.PostAsync(node, new StringContent(JsonConvert.SerializeObject(
new SendTransaction {
PortNumber = PortNumber, Transaction = transaction
})))).Dispose();
} catch (HttpRequestException) {
}
}
});
}
public bool AddToPool(Transaction tx)
{
return(transactionPool.Add(tx, unspentTxOuts));
}
public Node()
{
if (File.Exists(ConfigFileName))
{
string s;
using (var sr = new StreamReader(ConfigFileName, Encoding)) {
s = sr.ReadToEnd();
}
var config = JsonConvert.DeserializeObject <Config>(s);
PortNumber = config.PortNumber;
Nodes = config.Nodes ?? new HashSet <Uri>();
}
BlockChain.Add(GetGenesisBlock());
LastHash = SerializeHash(GetHash(BlockChain.Last()));
httpListener_.Prefixes.Add($"http://+:{PortNumber}/");
httpListener_.Start();
Task.Run(() => {
while (true)
{
var context = httpListener_.GetContext();
void respond()
{
context.Response.StatusCode = (int)HttpStatusCode.BadRequest;
context.Response.OutputStream.Close();
}
string requestString;
using (var sr = new StreamReader(context.Request.InputStream)) {
requestString = sr.ReadToEnd();
}
Log += $"request get: {requestString}{Environment.NewLine}";
OnLogChanged();
JObject requestJObject;
try {
requestJObject = JObject.Parse(requestString);
} catch (JsonReaderException) {
respond();
continue;
}
if (!requestJObject.ContainsKey("Matcha") || requestJObject["Matcha"].Type != JTokenType.String ||
requestJObject["Matcha"].Value <string>() != "Matcha")
{
respond();
continue;
}
var client = new Uri($"http://{context.Request.RemoteEndPoint.Address}"
+ $":{requestJObject["PortNumber"].Value<int>()}/");
Nodes.Add(client);
var response = context.Response;
response.StatusCode = 200;
using (var sw = new StreamWriter(response.OutputStream, Encoding)) {
switch (requestJObject["Type"].Value <string>())
{
case nameof(Methods.GetNodes): {
var nodes = new HashSet <Uri>(Nodes);
nodes.Remove(client);
sw.Write(JsonConvert.SerializeObject(new GetNodesResponse {
Nodes = nodes
}));
break;
}
case nameof(SendTransaction): {
var request = requestJObject.ToObject <SendTransaction>();
if (!TransactionPool.Contains(request.Transaction))
{
TransactionPool.Add(request.Transaction);
OnTransactionPoolChanged();
}
break;
}
case nameof(GetCurrentIndex): {
sw.Write(JsonConvert.SerializeObject(new GetCurrentIndexResponse {
CurrentIndex = BlockChain.Last().Index
}));
break;
}
case nameof(GetBlocks): {
var request = requestJObject.ToObject <GetBlocks>();
sw.Write(JsonConvert.SerializeObject(new GetBlocksResponse {
Blocks = BlockChain.Skip(request.Index).Take(request.NumBlocks).ToList()
}));
break;
}
}
}
}
});
}
public async Task Add(IEnumerable <Domain.Transaction> tx) => await TransactionPool.Add(tx);
public async Task <bool> Add(Domain.Transaction tx) => await TransactionPool.Add(tx);
