public static ConsensusMessage DeserializeFrom(byte[] data)
{
ConsensusMessage message = ReflectionCache.CreateInstance <ConsensusMessage>(data[0]);
if (message == null)
{
throw new FormatException();
}
using (MemoryStream ms = new MemoryStream(data, false))
using (BinaryReader r = new BinaryReader(ms))
{
message.Deserialize(r);
}
return(message);
}
private ConsensusPayload MakeSignedPayload(ConsensusMessage message)
{
message.ViewNumber = ViewNumber;
ConsensusPayload payload = new ConsensusPayload
{
Version = Version,
PrevHash = PrevHash,
ChainHash = blockchain.ChainHash,
BlockIndex = BlockIndex,
ValidatorIndex = (ushort)MyIndex,
Timestamp = Timestamp,
Data = message.ToArray()
};
SignPayload(payload);
return(payload);
}
private void OnConsensusPayload(ConsensusPayload payload)
{
if (payload.ValidatorIndex == context.MyIndex)
{
return;
}
if (payload.Version != ConsensusContext.Version)
{
return;
}
if (payload.PrevHash != context.PrevHash || payload.BlockIndex != context.BlockIndex)
{
if (context.BlockIndex != payload.BlockIndex)
{
Log($"chain sync: expected={payload.BlockIndex} current={context.BlockIndex} nodes={localNodeObj.ConnectedCount}", LogLevel.Warning);
if (context.BlockIndex < payload.BlockIndex)
{
AddUnhandledPayloadToCache(payload);
}
}
if (payload.BlockIndex == context.BlockIndex && payload.PrevHash != context.PrevHash)
{
Log($"block hash unmatched: sender={payload.ValidatorIndex} remote={payload.PrevHash} local={context.PrevHash}", LogLevel.Error);
}
return;
}
if (context.State.HasFlag(ConsensusState.BlockSent))
{
return;
}
if (payload.ValidatorIndex >= context.Validators.Length)
{
return;
}
ConsensusMessage message;
try
{
message = ConsensusMessage.DeserializeFrom(payload.Data);
}
catch
{
return;
}
if (message.ViewNumber != context.ViewNumber && message.Type != ConsensusMessageType.ChangeView)
{
return;
}
switch (message.Type)
{
case ConsensusMessageType.ChangeView:
OnChangeViewReceived(payload, (ChangeView)message);
break;
case ConsensusMessageType.PrepareRequest:
OnPrepareRequestReceived(payload, (PrepareRequest)message);
break;
case ConsensusMessageType.PrepareResponse:
OnPrepareResponseReceived(payload, (PrepareResponse)message);
break;
}
}