private bool Asset_Renew(ExecutionEngine engine)
{
AssetState asset = engine.EvaluationStack.Pop().GetInterface <AssetState>();
if (asset == null)
{
return(false);
}
byte years = (byte)engine.EvaluationStack.Pop().GetBigInteger();
asset = assets.GetAndChange(asset.AssetId);
if (asset.Expiration < Blockchain.Default.Height + 1)
{
asset.Expiration = Blockchain.Default.Height + 1;
}
try
{
asset.Expiration = checked (asset.Expiration + years * 2000000u);
}
catch (OverflowException)
{
asset.Expiration = uint.MaxValue;
}
engine.EvaluationStack.Push(asset.Expiration);
return(true);
}
private bool Account_SetVotes(ExecutionEngine engine)
{
AccountState account = engine.EvaluationStack.Pop().GetInterface <AccountState>();
ECPoint[] votes = engine.EvaluationStack.Pop().GetArray().Select(p => ECPoint.DecodePoint(p.GetByteArray(), ECCurve.Secp256r1)).ToArray();
if (account == null)
{
return(false);
}
if (votes.Length > 1024)
{
return(false);
}
account = accounts[account.ScriptHash];
if (account.IsFrozen)
{
return(false);
}
if ((!account.Balances.TryGetValue(Blockchain.GoverningToken.Hash, out Fixed8 balance) || balance.Equals(Fixed8.Zero)) && votes.Length > 0)
{
return(false);
}
if (!CheckWitness(engine, account.ScriptHash))
{
return(false);
}
account = accounts.GetAndChange(account.ScriptHash);
account.Votes = votes.Distinct().ToArray();
return(true);
}
private bool Storage_Put(ExecutionEngine engine)
{
StorageContext context = engine.EvaluationStack.Pop().GetInterface <StorageContext>();
if (!CheckStorageContext(context))
{
return(false);
}
byte[] key = engine.EvaluationStack.Pop().GetByteArray();
if (key.Length > 1024)
{
return(false);
}
byte[] value = engine.EvaluationStack.Pop().GetByteArray();
storages.GetAndChange(new StorageKey
{
ScriptHash = context.ScriptHash,
Key = key
}, () => new StorageItem()).Value = value;
return(true);
}
