private bool VerifyAccountState(Snapshot snapshot)
{
switch (Field)
{
case "Votes":
ECPoint[] pubkeys;
try
{
pubkeys = Value.AsSerializableArray <ECPoint>((int)Blockchain.MaxValidators);
}
catch (FormatException)
{
return(false);
}
UInt160 hash = new UInt160(Key);
AccountState account = snapshot.Accounts.TryGet(hash);
if (account?.IsFrozen != false)
{
return(false);
}
if (pubkeys.Length > 0)
{
if (account.GetBalance(Blockchain.GoverningToken.Hash).Equals(Fixed8.Zero))
{
return(false);
}
HashSet <ECPoint> sv = new HashSet <ECPoint>(Blockchain.StandbyValidators);
foreach (ECPoint pubkey in pubkeys)
{
if (!sv.Contains(pubkey) && snapshot.Validators.TryGet(pubkey)?.Registered != true)
{
return(false);
}
}
}
return(true);
default:
return(false);
}
}
internal static void ProcessAccountStateDescriptor(StateDescriptor descriptor, Snapshot snapshot)
{
UInt160 hash = new UInt160(descriptor.Key);
AccountState account = snapshot.Accounts.GetAndChange(hash, () => new AccountState(hash));
switch (descriptor.Field)
{
case "Votes":
Fixed8 balance = account.GetBalance(GoverningToken.Hash);
foreach (ECPoint pubkey in account.Votes)
{
ValidatorState validator = snapshot.Validators.GetAndChange(pubkey);
validator.Votes -= balance;
if (!validator.Registered && validator.Votes.Equals(Fixed8.Zero))
{
snapshot.Validators.Delete(pubkey);
}
}
ECPoint[] votes = descriptor.Value.AsSerializableArray <ECPoint>().Distinct().ToArray();
if (votes.Length != account.Votes.Length)
{
ValidatorsCountState count_state = snapshot.ValidatorsCount.GetAndChange();
if (account.Votes.Length > 0)
{
count_state.Votes[account.Votes.Length - 1] -= balance;
}
if (votes.Length > 0)
{
count_state.Votes[votes.Length - 1] += balance;
}
}
account.Votes = votes;
foreach (ECPoint pubkey in account.Votes)
{
snapshot.Validators.GetAndChange(pubkey, () => new ValidatorState(pubkey)).Votes += balance;
}
break;
}
}