blockchain: Refactor to use new chain view. #1344
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davecgh
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No issues encountered running on testnet. |
davecgh
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Been running smooth on testnet for a while now |
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Ran for 5 days with no problems on testnet and mainnet. |
alexlyp
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jrick
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Jul 20, 2018
This refactors and simplifies the code in blockchain to use the new more
efficient chain views.
An overview of the logic changes are as follows:
- Remove inMainChain from block nodes since that can now be efficiently
determined by using the chain view
- Track the best chain via a chain view instead of a single block node
- Use the tip of the best chain view everywhere bestNode was used
- Update chain view tip instead of updating best node
- Remove height map and associated lock in favor of chain view
- Use chain view NodeByHeight everywhere height map was used
- Change reorg logic to use more efficient chain view fork finding logic
- Change block locator code over to use more efficient chain view logic
- Remove now unused block-index-based block locator code
- Move BlockLocator definition to chain.go
- Move BlockLocatorFromHash and LatestBlockLocator to chain.go
- Update both to use more efficient chain view logic
- Rework several functions to use chain view for main chain detection
- fetchMainChainBlockByNode
- BlockByHeight
- MainChainHasBlock
- findPreviousCheckpoint
- IsCheckpointCandidate
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This requires #1338.
This refactors and simplifies the code in blockchain to use the new more efficient chain views.
An overview of the logic changes are as follows:
inMainChainfrom block nodes since that can now be efficiently determined by using the chain viewbestNodewas usedNodeByHeighteverywhere height map was usedBlockLocatordefinition tochain.goBlockLocatorFromHashandLatestBlockLocatortochain.gofetchMainChainBlockByNodeBlockByHeightMainChainHasBlockfindPreviousCheckpointIsCheckpointCandidateThis is work towards #1145.