AuthorityEngine: Minor cleanups.#11408
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dvdplm
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looks good; have a few questions.
| signature: H520, | ||
| /// This message's step number. | ||
| step: u64, | ||
| /// The hash of the most recent block. |
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Is this the hash of the parent to the block where the authority emits the EmptyStep message?
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If I understand correctly, an empty step message is created instead of a block, if a validator has no pending transactions. It cannot itself be a parent, and this hash always points to the most recent block.
E.g.:
- Validator A creates block 1.
- Validator B has no pending transaction, so it signs an empty step message mB instead whose hash points to block 1.
- Validator C also has no pending transactions, so it also signs an empty step message mC instead whose hash points to block 1.
- Validator D creates block 2. The parent is block 1, and the header includes mB and mC.
(Would be good if someone could confirm my understanding!)
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Oh right, makes sense now. Thank you for explaining.
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Maybe your excellent comment here could go into the module level docs or the docs for EmptyStep for the benefit of the next clueless code reader? :)
…pstream * master: Add POSDAO transition and malice report queue. (#11245) update master/nightly version: v2.8.0 (#11419) ethcore/res: remove morden testnet (#11392) fix: export hardcoded sync format (#11416) update hardcoded headers: mainnet and ropsten (#11414) AuthorityEngine: Minor cleanups. (#11408) Update POA bootnodes (#11411) Add EtherCore support (#11402) verification: fix race same block + misc (#11400) Update ProgPoW to 0.9.3 (#11407) update classic testnet bootnodes (#11398) dependencies: bump `derive_more v0.99` (#11405) engine error: remove faulty/unused `From` (#11404) Switching to stable-track (#11377) ethcore/res: fix ethereum classic chainspec blake2_f activation block num (#11391) Update copyright notice 2020 (#11386)
This removes some repetitions, reformats very long lines and adds a few comments.