public void RemoveProductionAndConsumption()
{
var sozu = new VolatileCoinStore();
var inbox = new BoundedInbox();
var outbox = new BoundedInbox();
var controller = new CoinController(inbox, outbox, sozu, _hash);
controller.Lineage = new MockLineage();
var clientId = new ClientId();
var reqId = new RequestId(1);
var coin = GetCoin(_rand);
sozu.AddProduction(
_hash.Hash(ref coin.Outpoint),
ref coin.Outpoint,
false, coin.Payload,
new BlockAlias(2),
null);
sozu.AddConsumption(
_hash.Hash(ref coin.Outpoint),
ref coin.Outpoint,
new BlockAlias(2),
null);
var buffer = new byte[RemoveCoinRequest.SizeInBytes];
var removeCoinRequest = new RemoveCoinRequest(
buffer, reqId, ref coin.Outpoint, new BlockAlias(2).ConvertToBlockHandle(clientId.Mask), true, true);
inbox.TryWrite(removeCoinRequest.Span);
controller.HandleRequest();
var raw = outbox.Peek();
Assert.Equal(RemoveCoinResponse.SizeInBytes, raw.Length);
var response = new RemoveCoinResponse(raw.Span);
// verify response contents
Assert.Equal(reqId, response.MessageHeader.RequestId);
Assert.Equal(clientId, response.MessageHeader.ClientId);
Assert.Equal(MessageKind.RemoveCoinResponse, response.MessageHeader.MessageKind);
Assert.Equal(ChangeCoinStatus.Success, response.Status);
sozu.TryGet(_hash.Hash(ref coin.Outpoint), ref coin.Outpoint, new BlockAlias(2), null, out var coin2,
out var pe, out var ce);
Assert.False(pe.IsDefined);
Assert.False(ce.IsDefined);
}
// DELETE: Transaction/RemoveCoin/RemoveCoinRequest
public bool RemoveCoin([FromBody] RemoveCoinRequest request)
{
CibitDb context = HttpContext.RequestServices.GetService(typeof(CibitDb)) as CibitDb;
ValidateUser valid = new ValidateUser();
var config = new MapperConfiguration(mc => mc.CreateMap <RemoveCoinRequest, TransactionDTO>());
var mapper = new Mapper(config);
var userinfo = mapper.Map <RemoveCoinRequest, TransactionDTO>(request);
valid.VerifyCoinId(userinfo.CoinId, userinfo.SenderId);
var spObj = Converters.RemoveCoinConverter(userinfo);
var reader = context.StoredProcedureSql("RemoveCoin", spObj);
context.Connection.Close();
return(true);
}
public bool HandleRequest()
{
if (!_inbox.CanPeek)
{
return(false);
}
var next = _inbox.Peek().Span;
try
{
var message = new Message(next);
var mask = message.Header.ClientId.Mask;
var kind = message.Header.MessageKind;
var requestId = message.Header.RequestId;
var clientId = message.Header.ClientId;
if (!_connections.TryGetValue(clientId, out var connection))
{
// Outdated message, drop and move on.
return(true);
}
if (!connection.Connected || kind == MessageKind.CloseConnection)
{
// Client disconnected, drop message and remove connection.
_connections.Remove(clientId);
return(true);
}
if (kind.IsResponse())
{
// Forward responses to their respective 'ConnectionController'.
connection.Send(next);
return(true);
}
if (kind.IsForCoinController())
{
// Multiple coin controllers
Outpoint outpoint;
switch (kind)
{
case MessageKind.GetCoin:
outpoint = new GetCoinRequest(next, mask).Outpoint;
break;
case MessageKind.ProduceCoin:
outpoint = new ProduceCoinRequest(next, mask).Outpoint;
break;
case MessageKind.ConsumeCoin:
outpoint = new ConsumeCoinRequest(next, mask).Outpoint;
break;
case MessageKind.RemoveCoin:
outpoint = new RemoveCoinRequest(next, mask).Outpoint;
break;
default:
throw new NotSupportedException();
}
// Sharding based on the outpoint hash
// Beware: the factor 'BigPrime' is used to avoid accidental factor collision
// between the sharding performed at the dispatch controller level, and the
// sharding performed within the Sozu table.
// PERF: hashing the outpoint is repeated in the CoinController itself
const ulong BigPrime = 1_000_000_007;
var controllerIndex = (int)((_hash.Hash(ref outpoint) % BigPrime)
% (ulong)_coinControllerBoxes.Length);
var written = _coinControllerBoxes[controllerIndex].TryWrite(next);
if (written)
{
OnCoinMessageDispatched[controllerIndex]();
}
else
{
// Coin controller is saturated.
Span <byte> buffer = stackalloc byte[ProtocolErrorResponse.SizeInBytes];
var errorMessage = new ProtocolErrorResponse(
buffer, requestId, clientId, ProtocolErrorStatus.ServerBusy);
connection.Send(errorMessage.Span);
}
return(true);
}
{
// Block controller
var written = _chainControllerBox.TryWrite(next);
if (written)
{
OnBlockMessageDispatched();
}
else
{
// Block controller is saturated.
Span <byte> buffer = stackalloc byte[ProtocolErrorResponse.SizeInBytes];
var errorMessage = new ProtocolErrorResponse(
buffer, requestId, clientId, ProtocolErrorStatus.ServerBusy);
connection.Send(errorMessage.Span);
}
}
}
finally
{
_inbox.Next();
}
return(true);
}