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Remove BlockBase and ConsensusData #2296

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merged 3 commits into from
Feb 5, 2021
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public UInt256 MerkleRoot => Header.MerkleRoot;
public ulong Timestamp => Header.Timestamp;
public uint Index => Header.Index;
public byte PrimaryIndex => Header.PrimaryIndex;
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This simplifies things a lot, but don't we also want to have a nonce in the header? It might be useful to have for contracts.

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The nonce in the block is an unreliable random number, and contracts should not rely on it.

sizeof(uint) + // Index
sizeof(byte) + // PrimaryIndex
UInt160.Length + // NextConsensus
1 + Witness.Size; // Witness
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We can even keep the same header size by removing this 1.

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We have already discussed this before. 😆

@erikzhang erikzhang merged commit b690466 into master Feb 5, 2021
@erikzhang erikzhang deleted the remove-blockbase-consensusdata branch February 5, 2021 10:28
Ashuaidehao added a commit to Ashuaidehao/neo-devpack-dotnet that referenced this pull request Feb 7, 2021
shargon pushed a commit to neo-project/neo-devpack-dotnet that referenced this pull request Feb 7, 2021
ixje added a commit to CityOfZion/neo-mamba that referenced this pull request Apr 8, 2021
roman-khimov added a commit to nspcc-dev/neo-go that referenced this pull request Jul 27, 2024
This is a bad one.

$ ./bin/neo-go contract testinvokefunction -r https://rpc10.n3.nspcc.ru:10331 0xda65b600f7124ce6c79950c1772a36403104f2be getBlock 5762000
{
  "state": "HALT",
  "gasconsumed": "202812",
  "script": "AtDrVwARwB8MCGdldEJsb2NrDBS+8gQxQDYqd8FQmcfmTBL3ALZl2kFifVtS",
  "stack": [
    {
      "type": "Array",
      "value": [
        {
          "type": "ByteString",
          "value": "vq5IPTPEDRhz0JA4cQKIa6/o97pnJt/HfVkDRknd1rg="
        },
        {
          "type": "Integer",
          "value": "0"
        },
        {
          "type": "ByteString",
          "value": "zFYF3LGaTKdbqVX99shaBUzTq9YjXb0jaPMjk2jdSP4="
        },
        {
          "type": "ByteString",
          "value": "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA="
        },
        {
          "type": "Integer",
          "value": "1722060076994"
        },
        {
          "type": "Integer",
          "value": "5293295626238767595"
        },
        {
          "type": "Integer",
          "value": "5762000"
        },
        {
          "type": "ByteString",
          "value": "LIt05Fpxhl/kXMX3EAGIASyOSQs="
        },
        {
          "type": "Integer",
          "value": "0"
        }
      ]
    }
  ],
  "exception": null,
  "notifications": []
}

$ ./bin/neo-go contract testinvokefunction -r http://seed3.neo.org:10332 0xda65b600f7124ce6c79950c1772a36403104f2be getBlock 5762000
{
  "state": "HALT",
  "gasconsumed": "202812",
  "script": "AtDrVwARwB8MCGdldEJsb2NrDBS+8gQxQDYqd8FQmcfmTBL3ALZl2kFifVtS",
  "stack": [
    {
      "type": "Array",
      "value": [
        {
          "type": "ByteString",
          "value": "vq5IPTPEDRhz0JA4cQKIa6/o97pnJt/HfVkDRknd1rg="
        },
        {
          "type": "Integer",
          "value": "0"
        },
        {
          "type": "ByteString",
          "value": "zFYF3LGaTKdbqVX99shaBUzTq9YjXb0jaPMjk2jdSP4="
        },
        {
          "type": "ByteString",
          "value": "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA="
        },
        {
          "type": "Integer",
          "value": "1722060076994"
        },
        {
          "type": "Integer",
          "value": "5293295626238767595"
        },
        {
          "type": "Integer",
          "value": "5762000"
        },
        {
          "type": "Integer",
          "value": "6"
        },
        {
          "type": "ByteString",
          "value": "LIt05Fpxhl/kXMX3EAGIASyOSQs="
        },
        {
          "type": "Integer",
          "value": "0"
        }
      ]
    }
  ],
  "exception": null,
  "notifications": []
}

9 fields vs 10, notice the primary index right after the block number.

Back when ac52765 initially added Ledger I've
used neo-project/neo#2215 as a reference and it was
correct (no primary index). But then neo-project/neo#2296
came into the C# codebase and while it looked like a pure refactoring it
actually did add the primary index as well and this wasn't noticed. It wasn't
noticed even when 3a4e0ca had touched some
nearby code. In short, we had a completely wrong implementation of this call
for more than three years. But looks like it's not a very popular one.

Signed-off-by: Roman Khimov <[email protected]>
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3 participants