You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
165 lines
4.7 KiB
165 lines
4.7 KiB
package state
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
|
|
. "github.com/tendermint/go-common"
|
|
"github.com/tendermint/go-events"
|
|
"github.com/tendermint/tendermint/proxy"
|
|
"github.com/tendermint/tendermint/types"
|
|
tmsp "github.com/tendermint/tmsp/types"
|
|
)
|
|
|
|
// Validate block
|
|
func (s *State) ValidateBlock(block *types.Block) error {
|
|
return s.validateBlock(block)
|
|
}
|
|
|
|
// Execute the block to mutate State.
|
|
// Validates block and then executes Data.Txs in the block.
|
|
func (s *State) ExecBlock(evsw *events.EventSwitch, proxyAppConn proxy.AppConn, block *types.Block, blockPartsHeader types.PartSetHeader) error {
|
|
|
|
// Validate the block.
|
|
err := s.validateBlock(block)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// Update the validator set
|
|
valSet := s.Validators.Copy()
|
|
// Update valSet with signatures from block.
|
|
updateValidatorsWithBlock(s.LastValidators, valSet, block)
|
|
// TODO: Update the validator set (e.g. block.Data.ValidatorUpdates?)
|
|
nextValSet := valSet.Copy()
|
|
|
|
// Execute the block txs
|
|
err = s.execBlockOnProxyApp(evsw, proxyAppConn, block)
|
|
if err != nil {
|
|
// There was some error in proxyApp
|
|
// TODO Report error and wait for proxyApp to be available.
|
|
return err
|
|
}
|
|
|
|
// All good!
|
|
nextValSet.IncrementAccum(1)
|
|
s.LastBlockHeight = block.Height
|
|
s.LastBlockHash = block.Hash()
|
|
s.LastBlockParts = blockPartsHeader
|
|
s.LastBlockTime = block.Time
|
|
s.Validators = nextValSet
|
|
s.LastValidators = valSet
|
|
|
|
return nil
|
|
}
|
|
|
|
// Executes block's transactions on proxyAppConn.
|
|
// TODO: Generate a bitmap or otherwise store tx validity in state.
|
|
func (s *State) execBlockOnProxyApp(evsw *events.EventSwitch, proxyAppConn proxy.AppConn, block *types.Block) error {
|
|
|
|
var validTxs, invalidTxs = 0, 0
|
|
|
|
// Execute transactions and get hash
|
|
proxyCb := func(req *tmsp.Request, res *tmsp.Response) {
|
|
switch res.Type {
|
|
case tmsp.MessageType_AppendTx:
|
|
// TODO: make use of res.Log
|
|
// TODO: make use of this info
|
|
// Blocks may include invalid txs.
|
|
// reqAppendTx := req.(tmsp.RequestAppendTx)
|
|
if res.Code == tmsp.CodeType_OK {
|
|
validTxs += 1
|
|
} else {
|
|
log.Debug("Invalid tx", "code", res.Code, "log", res.Log)
|
|
invalidTxs += 1
|
|
}
|
|
}
|
|
}
|
|
proxyAppConn.SetResponseCallback(proxyCb)
|
|
|
|
// Run txs of block
|
|
for _, tx := range block.Txs {
|
|
proxyAppConn.AppendTxAsync(tx)
|
|
if err := proxyAppConn.Error(); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
// End block
|
|
changedValidators, err := proxyAppConn.EndBlockSync(uint64(block.Height))
|
|
if err != nil {
|
|
log.Warn("Error in proxyAppConn.EndBlock", "error", err)
|
|
return err
|
|
}
|
|
// TODO: Do something with changedValidators
|
|
log.Info("TODO: Do something with changedValidators", changedValidators)
|
|
|
|
log.Info(Fmt("ExecBlock got %v valid txs and %v invalid txs", validTxs, invalidTxs))
|
|
return nil
|
|
}
|
|
|
|
func (s *State) validateBlock(block *types.Block) error {
|
|
// Basic block validation.
|
|
err := block.ValidateBasic(s.ChainID, s.LastBlockHeight, s.LastBlockHash, s.LastBlockParts, s.LastBlockTime, s.AppHash)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// Validate block LastCommit.
|
|
if block.Height == 1 {
|
|
if len(block.LastCommit.Precommits) != 0 {
|
|
return errors.New("Block at height 1 (first block) should have no LastCommit precommits")
|
|
}
|
|
} else {
|
|
if len(block.LastCommit.Precommits) != s.LastValidators.Size() {
|
|
return fmt.Errorf("Invalid block commit size. Expected %v, got %v",
|
|
s.LastValidators.Size(), len(block.LastCommit.Precommits))
|
|
}
|
|
err := s.LastValidators.VerifyCommit(
|
|
s.ChainID, s.LastBlockHash, s.LastBlockParts, block.Height-1, block.LastCommit)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// Updates the LastCommitHeight of the validators in valSet, in place.
|
|
// Assumes that lastValSet matches the valset of block.LastCommit
|
|
// CONTRACT: lastValSet is not mutated.
|
|
func updateValidatorsWithBlock(lastValSet *types.ValidatorSet, valSet *types.ValidatorSet, block *types.Block) {
|
|
|
|
for i, precommit := range block.LastCommit.Precommits {
|
|
if precommit == nil {
|
|
continue
|
|
}
|
|
_, val := lastValSet.GetByIndex(i)
|
|
if val == nil {
|
|
PanicCrisis(Fmt("Failed to fetch validator at index %v", i))
|
|
}
|
|
if _, val_ := valSet.GetByAddress(val.Address); val_ != nil {
|
|
val_.LastCommitHeight = block.Height - 1
|
|
updated := valSet.Update(val_)
|
|
if !updated {
|
|
PanicCrisis("Failed to update validator LastCommitHeight")
|
|
}
|
|
} else {
|
|
// XXX This is not an error if validator was removed.
|
|
// But, we don't mutate validators yet so go ahead and panic.
|
|
PanicCrisis("Could not find validator")
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
type InvalidTxError struct {
|
|
Tx types.Tx
|
|
Code tmsp.CodeType
|
|
}
|
|
|
|
func (txErr InvalidTxError) Error() string {
|
|
return Fmt("Invalid tx: [%v] code: [%v]", txErr.Tx, txErr.Code)
|
|
}
|