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genesis: add support for arbitrary initial height (#5191)

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Adds a genesis parameter `initial_height` which specifies the initial block height, as well as ABCI `RequestInitChain.InitialHeight` to pass it to the ABCI application, and `State.InitialHeight` to keep track of the initial height throughout the code. Fixes #2543, based on [RFC-002](https://github.com/tendermint/spec/pull/119). Spec changes in https://github.com/tendermint/spec/pull/135.
This commit is contained in:
Erik Grinaker
2020-08-11 19:03:28 +02:00
committed by GitHub
parent 08ffe13295
commit cc247c091b
28 changed files with 555 additions and 317 deletions
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21
state/store.go
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@@ -110,12 +110,12 @@ func SaveState(db dbm.DB, state State) {
func saveState(db dbm.DB, state State, key []byte) {
nextHeight := state.LastBlockHeight + 1
// If first block, save validators for block 1.
// If first block, save validators for the block.
if nextHeight == 1 {
nextHeight = state.InitialHeight
// This extra logic due to Tendermint validator set changes being delayed 1 block.
// It may get overwritten due to InitChain validator updates.
lastHeightVoteChanged := int64(1)
saveValidatorsInfo(db, nextHeight, lastHeightVoteChanged, state.Validators)
saveValidatorsInfo(db, nextHeight, nextHeight, state.Validators)
}
// Save next validators.
saveValidatorsInfo(db, nextHeight+1, state.LastHeightValidatorsChanged, state.NextValidators)
@@ -130,11 +130,16 @@ func saveState(db dbm.DB, state State, key []byte) {
// BootstrapState saves a new state, used e.g. by state sync when starting from non-zero height.
func BootstrapState(db dbm.DB, state State) error {
height := state.LastBlockHeight
saveValidatorsInfo(db, height, height, state.LastValidators)
saveValidatorsInfo(db, height+1, height+1, state.Validators)
saveValidatorsInfo(db, height+2, height+2, state.NextValidators)
saveConsensusParamsInfo(db, height+1, height+1, state.ConsensusParams)
height := state.LastBlockHeight + 1
if height == 1 {
height = state.InitialHeight
}
if height > 1 && !state.LastValidators.IsNilOrEmpty() {
saveValidatorsInfo(db, height-1, height-1, state.LastValidators)
}
saveValidatorsInfo(db, height, height, state.Validators)
saveValidatorsInfo(db, height+1, height+1, state.NextValidators)
saveConsensusParamsInfo(db, height, height, state.ConsensusParams)
return db.SetSync(stateKey, state.Bytes())
}