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Apply ConsensusParamChanges to state/State

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This commit is contained in:
Ethan Frey 2017-12-13 18:34:17 +01:00 committed by Ethan Buchman
parent 4265a94bfe
commit d21f39160f
2 changed files with 46 additions and 2 deletions
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10
state/state.go
View File

@ -251,17 +251,22 @@ func (s *State) SetBlockAndValidators(header *types.Header, blockPartsHeader typ
// Update validator accums and set state variables
nextValSet.IncrementAccum(1)
nextParams := s.Params.ApplyChanges(
abciResponses.EndBlock.ConsensusParamChanges)
s.setBlockAndValidators(header.Height,
header.NumTxs,
types.BlockID{header.Hash(), blockPartsHeader},
header.Time,
prevValSet, nextValSet)
prevValSet, nextValSet,
nextParams)
}
func (s *State) setBlockAndValidators(height int64,
newTxs int64, blockID types.BlockID, blockTime time.Time,
prevValSet, nextValSet *types.ValidatorSet) {
prevValSet, nextValSet *types.ValidatorSet,
nextParams types.ConsensusParams) {
s.LastBlockHeight = height
s.LastBlockTotalTx += newTxs
@ -269,6 +274,7 @@ func (s *State) setBlockAndValidators(height int64,
s.LastBlockTime = blockTime
s.Validators = nextValSet
s.LastValidators = prevValSet
s.Params = nextParams
}
// GetValidators returns the last and current validator sets.

38
types/params.go
View File

@ -2,6 +2,8 @@ package types
import (
"github.com/pkg/errors"
abci "github.com/tendermint/abci/types"
)
const (
@ -16,6 +18,42 @@ type ConsensusParams struct {
BlockGossipParams `json:"block_gossip_params"`
}
// ApplyChanges returns a new param set, overriding any
// parameter that is non-zero in argument
func (p ConsensusParams) ApplyChanges(c *abci.ConsensusParams) ConsensusParams {
if c == nil {
return p
}
res := p
// we must defensively consider any structs may be nil
if c.BlockSizeParams != nil {
if c.BlockSizeParams.MaxBytes != 0 {
res.BlockSizeParams.MaxBytes = int(c.BlockSizeParams.MaxBytes)
}
if c.BlockSizeParams.MaxTxs != 0 {
res.BlockSizeParams.MaxTxs = int(c.BlockSizeParams.MaxTxs)
}
if c.BlockSizeParams.MaxGas != 0 {
res.BlockSizeParams.MaxGas = int(c.BlockSizeParams.MaxGas)
}
}
if c.TxSizeParams != nil {
if c.TxSizeParams.MaxBytes != 0 {
res.TxSizeParams.MaxBytes = int(c.TxSizeParams.MaxBytes)
}
if c.TxSizeParams.MaxGas != 0 {
res.TxSizeParams.MaxGas = int(c.TxSizeParams.MaxGas)
}
}
if c.BlockGossipParams != nil {
if c.BlockGossipParams.BlockPartSizeBytes != 0 {
res.BlockGossipParams.BlockPartSizeBytes = int(c.BlockGossipParams.BlockPartSizeBytes)
}
}
return res
}
// BlockSizeParams contain limits on the block size.
type BlockSizeParams struct {
MaxBytes int `json:"max_bytes"` // NOTE: must not be 0 nor greater than 100MB