Esempio n. 1
0
        public void SerializeDeserializeOpenedBlock()
        {
            var openedBlock =
                new OpenedBlock(3, 4, new TempBlockId(new Hash128(987654321, 123456789)), new BlockAlias(326432));

            MessageSerializers.SerializeOpenedBlock(openedBlock, _buffer);
            var newOpenedBlock = MessageSerializers.ClientDeserializeOpenedBlock(_buffer);

            Assert.True(openedBlock.ClientId == newOpenedBlock.ClientId &&
                        openedBlock.RequestId == newOpenedBlock.RequestId &&
                        openedBlock.ResponseType == newOpenedBlock.ResponseType &&
                        openedBlock.Alias == newOpenedBlock.Alias &&
                        openedBlock.UncommittedBlockId.Equals(newOpenedBlock.UncommittedBlockId));
        }
Esempio n. 2
0
        public void DoWork()
        // TODO: [vermorel] method should return 'true' if any work has been done
        {
            var nextMessage = _inbox.Peek();

            if (nextMessage.Length != 0)
            {
                // get message type and deserialize accordingly
                var reqType = ClientServerMessage.GetMessageType(nextMessage);
                switch (reqType)
                {
// TODO: [vermorel] I don't like to too much the code below, it's highly repetitive, factorization is needed.

                case MessageType.OpenBlock:
                    var openBlock = MessageSerializers.DeserializeOpenBlock(nextMessage);
                    UncommittedBlock block;
                    if (openBlock.ParentHandle == BlockAlias.GenesisParent && _chain.BlockchainLength == 0)
                    {
                        block = _chain.OpenFirstBlock();
                    }
                    else
                    {
                        block = _chain.OpenBlock(openBlock.ParentHandle);
                    }
                    var blockHandle =
                        new OpenedBlock(openBlock.RequestId, openBlock.ClientId, block.BlockId, block.Alias);
                    MessageSerializers.SerializeOpenedBlock(blockHandle, _responseBuffer);
                    _outbox.TryWrite(new Span <byte>(_responseBuffer, 0, OpenedBlock.SizeInBytes));
                    break;

                case MessageType.GetBlockHandle:
                    var getBlockHandle  = MessageSerializers.DeserializeGetBlockHandle(nextMessage);
                    var retrievedHandle = _chain.RetrieveAlias(getBlockHandle.BlockId);
                    var returnMessage   = new BlockHandleResponse(getBlockHandle.RequestId, getBlockHandle.ClientId,
                                                                  retrievedHandle);
                    MessageSerializers.SerializeBlockHandleResponse(returnMessage, _responseBuffer);
                    _outbox.TryWrite(new Span <byte>(_responseBuffer, 0, BlockHandleResponse.SizeInBytes));
                    break;

                case MessageType.GetUncommittedBlockHandle:
                    var getUBlockHandle  = MessageSerializers.DeserializeGetUncommittedBlockHandle(nextMessage);
                    var retrievedUHandle = _chain.RetrieveAlias(getUBlockHandle.UncommittedBlockId);
                    var returnMes        = new BlockHandleResponse(getUBlockHandle.RequestId, getUBlockHandle.ClientId,
                                                                   retrievedUHandle);
                    MessageSerializers.SerializeBlockHandleResponse(returnMes, _responseBuffer);
                    _outbox.TryWrite(new Span <byte>(_responseBuffer, 0, BlockHandleResponse.SizeInBytes));
                    break;

                case MessageType.CommitBlock:
                    var commitBlock = MessageSerializers.DeserializeCommitBlock(nextMessage);
                    _chain.CommitBlock(commitBlock.BlockHandle, commitBlock.BlockId);
                    var committedMessage =
                        new EverythingOkResponse(commitBlock.RequestId, commitBlock.ClientId);
                    MessageSerializers.SerializeEverythingOk(committedMessage, _responseBuffer);
                    _outbox.TryWrite(new Span <byte>(_responseBuffer, 0, EverythingOkResponse.SizeInBytes));
                    break;

                case MessageType.IsAncestor:
                    var isAncestor        = MessageSerializers.DeserializeIsAncestor(nextMessage);
                    var res               = _opti.IsAncestor(isAncestor.BlockHandle, isAncestor.MaybeAncestorHandle);
                    var isAncestorMessage = new AncestorResponse(isAncestor.RequestId, isAncestor.ClientId, res);
                    MessageSerializers.SerializeAncestorResponse(isAncestorMessage, _responseBuffer);
                    _outbox.TryWrite(new Span <byte>(_responseBuffer, 0, AncestorResponse.SizeInBytes));
                    break;

                case MessageType.IsPruneable:
                    var isPruneable        = MessageSerializers.DeserializeIsPruneable(nextMessage);
                    var result             = _opti.IsPruneable(isPruneable.BlockHandle);
                    var isPruneableMessage = new PruneableResponse(isPruneable.RequestId, isPruneable.ClientId, result);
                    MessageSerializers.SerializePruneableResponse(isPruneableMessage, _responseBuffer);
                    _outbox.TryWrite(new Span <byte>(_responseBuffer, 0, PruneableResponse.SizeInBytes));
                    break;

                case MessageType.GetBlockInfo:
                    var blockInfoReq = MessageSerializers.DeserializeGetBlockInfo(nextMessage);

                    // TODO: [vermorel] clarify the purpose of this test, unclear
                    if (_chain.RetrieveCommittedBlock(blockInfoReq.BlockHandle, out var blockInfoC))
                    {
                        var blockInfo =
                            new CommittedBlockInformation(blockInfoReq.RequestId, blockInfoReq.ClientId,
                                                          blockInfoC.BlockId, blockInfoC.Alias, blockInfoC.BlockHeight, blockInfoC.Parent);
                        MessageSerializers.SerializeCommittedBlockInfo(blockInfo, _responseBuffer);
                        _outbox.TryWrite(new Span <byte>(_responseBuffer, 0, CommittedBlockInformation.SizeInBytes));
                        break;
                    }
                    else
                    {
                        _chain.RetrieveUncommittedBlock(blockInfoReq.BlockHandle, out var blockInfoU);
                        var blockInfo =
                            new UncommittedBlockInformation(blockInfoReq.RequestId, blockInfoReq.ClientId,
                                                            blockInfoU.BlockId, blockInfoU.Alias, blockInfoU.BlockHeight, blockInfoU.Parent);
                        MessageSerializers.SerializeUncommittedBlockInfo(blockInfo, _responseBuffer);
                        _outbox.TryWrite(new Span <byte>(_responseBuffer, 0, UncommittedBlockInformation.SizeInBytes));
                        break;
                    }

// TODO: [vermorel] the 'default:' case should be covered with an NotSupportedException.
                }
                _inbox.Next();
                // TODO: errors are not yet handled.
            }
        }