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.
311 lines
9.4 KiB
311 lines
9.4 KiB
package state
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
|
|
fail "github.com/ebuchman/fail-test"
|
|
abci "github.com/tendermint/abci/types"
|
|
crypto "github.com/tendermint/go-crypto"
|
|
"github.com/tendermint/tendermint/proxy"
|
|
"github.com/tendermint/tendermint/state/txindex"
|
|
"github.com/tendermint/tendermint/types"
|
|
cmn "github.com/tendermint/tmlibs/common"
|
|
"github.com/tendermint/tmlibs/log"
|
|
)
|
|
|
|
//--------------------------------------------------
|
|
// Execute the block
|
|
|
|
// ValExecBlock executes the block, but does NOT mutate State.
|
|
// + validates the block
|
|
// + executes block.Txs on the proxyAppConn
|
|
func (s *State) ValExecBlock(eventCache types.Fireable, proxyAppConn proxy.AppConnConsensus, block *types.Block) (*ABCIResponses, error) {
|
|
// Validate the block.
|
|
if err := s.validateBlock(block); err != nil {
|
|
return nil, ErrInvalidBlock(err)
|
|
}
|
|
|
|
// Execute the block txs
|
|
abciResponses, err := execBlockOnProxyApp(eventCache, proxyAppConn, block, s.logger)
|
|
if err != nil {
|
|
// There was some error in proxyApp
|
|
// TODO Report error and wait for proxyApp to be available.
|
|
return nil, ErrProxyAppConn(err)
|
|
}
|
|
|
|
return abciResponses, nil
|
|
}
|
|
|
|
// Executes block's transactions on proxyAppConn.
|
|
// Returns a list of transaction results and updates to the validator set
|
|
// TODO: Generate a bitmap or otherwise store tx validity in state.
|
|
func execBlockOnProxyApp(eventCache types.Fireable, proxyAppConn proxy.AppConnConsensus, block *types.Block, logger log.Logger) (*ABCIResponses, error) {
|
|
var validTxs, invalidTxs = 0, 0
|
|
|
|
txIndex := 0
|
|
abciResponses := NewABCIResponses(block)
|
|
|
|
// Execute transactions and get hash
|
|
proxyCb := func(req *abci.Request, res *abci.Response) {
|
|
switch r := res.Value.(type) {
|
|
case *abci.Response_DeliverTx:
|
|
// TODO: make use of res.Log
|
|
// TODO: make use of this info
|
|
// Blocks may include invalid txs.
|
|
// reqDeliverTx := req.(abci.RequestDeliverTx)
|
|
txError := ""
|
|
txResult := r.DeliverTx
|
|
if txResult.Code == abci.CodeType_OK {
|
|
validTxs++
|
|
} else {
|
|
logger.Debug("Invalid tx", "code", txResult.Code, "log", txResult.Log)
|
|
invalidTxs++
|
|
txError = txResult.Code.String()
|
|
}
|
|
|
|
abciResponses.DeliverTx[txIndex] = txResult
|
|
txIndex++
|
|
|
|
// NOTE: if we count we can access the tx from the block instead of
|
|
// pulling it from the req
|
|
event := types.EventDataTx{
|
|
Height: block.Height,
|
|
Tx: types.Tx(req.GetDeliverTx().Tx),
|
|
Data: txResult.Data,
|
|
Code: txResult.Code,
|
|
Log: txResult.Log,
|
|
Error: txError,
|
|
}
|
|
types.FireEventTx(eventCache, event)
|
|
}
|
|
}
|
|
proxyAppConn.SetResponseCallback(proxyCb)
|
|
|
|
// Begin block
|
|
err := proxyAppConn.BeginBlockSync(block.Hash(), types.TM2PB.Header(block.Header))
|
|
if err != nil {
|
|
logger.Error("Error in proxyAppConn.BeginBlock", "err", err)
|
|
return nil, err
|
|
}
|
|
|
|
// Run txs of block
|
|
for _, tx := range block.Txs {
|
|
proxyAppConn.DeliverTxAsync(tx)
|
|
if err := proxyAppConn.Error(); err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
|
|
// End block
|
|
abciResponses.EndBlock, err = proxyAppConn.EndBlockSync(uint64(block.Height))
|
|
if err != nil {
|
|
logger.Error("Error in proxyAppConn.EndBlock", "err", err)
|
|
return nil, err
|
|
}
|
|
|
|
valDiff := abciResponses.EndBlock.Diffs
|
|
|
|
logger.Info("Executed block", "height", block.Height, "validTxs", validTxs, "invalidTxs", invalidTxs)
|
|
if len(valDiff) > 0 {
|
|
logger.Info("Update to validator set", "updates", abci.ValidatorsString(valDiff))
|
|
}
|
|
|
|
return abciResponses, nil
|
|
}
|
|
|
|
func updateValidators(validators *types.ValidatorSet, changedValidators []*abci.Validator) error {
|
|
// TODO: prevent change of 1/3+ at once
|
|
|
|
for _, v := range changedValidators {
|
|
pubkey, err := crypto.PubKeyFromBytes(v.PubKey) // NOTE: expects go-wire encoded pubkey
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
address := pubkey.Address()
|
|
power := int64(v.Power)
|
|
// mind the overflow from uint64
|
|
if power < 0 {
|
|
return errors.New(cmn.Fmt("Power (%d) overflows int64", v.Power))
|
|
}
|
|
|
|
_, val := validators.GetByAddress(address)
|
|
if val == nil {
|
|
// add val
|
|
added := validators.Add(types.NewValidator(pubkey, power))
|
|
if !added {
|
|
return errors.New(cmn.Fmt("Failed to add new validator %X with voting power %d", address, power))
|
|
}
|
|
} else if v.Power == 0 {
|
|
// remove val
|
|
_, removed := validators.Remove(address)
|
|
if !removed {
|
|
return errors.New(cmn.Fmt("Failed to remove validator %X)"))
|
|
}
|
|
} else {
|
|
// update val
|
|
val.VotingPower = power
|
|
updated := validators.Update(val)
|
|
if !updated {
|
|
return errors.New(cmn.Fmt("Failed to update validator %X with voting power %d", address, power))
|
|
}
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// return a bit array of validators that signed the last commit
|
|
// NOTE: assumes commits have already been authenticated
|
|
func commitBitArrayFromBlock(block *types.Block) *cmn.BitArray {
|
|
signed := cmn.NewBitArray(len(block.LastCommit.Precommits))
|
|
for i, precommit := range block.LastCommit.Precommits {
|
|
if precommit != nil {
|
|
signed.SetIndex(i, true) // val_.LastCommitHeight = block.Height - 1
|
|
}
|
|
}
|
|
return signed
|
|
}
|
|
|
|
//-----------------------------------------------------
|
|
// Validate block
|
|
|
|
// ValidateBlock validates the block against the state.
|
|
func (s *State) ValidateBlock(block *types.Block) error {
|
|
return s.validateBlock(block)
|
|
}
|
|
|
|
func (s *State) validateBlock(block *types.Block) error {
|
|
// Basic block validation.
|
|
err := block.ValidateBasic(s.ChainID, s.LastBlockHeight, s.LastBlockID, 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 errors.New(cmn.Fmt("Invalid block commit size. Expected %v, got %v",
|
|
s.LastValidators.Size(), len(block.LastCommit.Precommits)))
|
|
}
|
|
err := s.LastValidators.VerifyCommit(
|
|
s.ChainID, s.LastBlockID, block.Height-1, block.LastCommit)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// ApplyBlock validates & executes the block, updates state w/ ABCI responses,
|
|
// then commits and updates the mempool atomically, then saves state.
|
|
// Transaction results are optionally indexed.
|
|
|
|
// ApplyBlock validates the block against the state, executes it against the app,
|
|
// commits it, and saves the block and state. It's the only function that needs to be called
|
|
// from outside this package to process and commit an entire block.
|
|
func (s *State) ApplyBlock(eventCache types.Fireable, proxyAppConn proxy.AppConnConsensus,
|
|
block *types.Block, partsHeader types.PartSetHeader, mempool types.Mempool) error {
|
|
|
|
abciResponses, err := s.ValExecBlock(eventCache, proxyAppConn, block)
|
|
if err != nil {
|
|
return fmt.Errorf("Exec failed for application: %v", err)
|
|
}
|
|
|
|
fail.Fail() // XXX
|
|
|
|
// index txs. This could run in the background
|
|
s.indexTxs(abciResponses)
|
|
|
|
// save the results before we commit
|
|
s.SaveABCIResponses(abciResponses)
|
|
|
|
fail.Fail() // XXX
|
|
|
|
// now update the block and validators
|
|
s.SetBlockAndValidators(block.Header, partsHeader, abciResponses)
|
|
|
|
// lock mempool, commit state, update mempoool
|
|
err = s.CommitStateUpdateMempool(proxyAppConn, block, mempool)
|
|
if err != nil {
|
|
return fmt.Errorf("Commit failed for application: %v", err)
|
|
}
|
|
|
|
fail.Fail() // XXX
|
|
|
|
// save the state
|
|
s.Save()
|
|
|
|
return nil
|
|
}
|
|
|
|
// CommitStateUpdateMempool locks the mempool, runs the ABCI Commit message, and updates the mempool.
|
|
// The Mempool must be locked during commit and update because state is typically reset on Commit and old txs must be replayed
|
|
// against committed state before new txs are run in the mempool, lest they be invalid.
|
|
func (s *State) CommitStateUpdateMempool(proxyAppConn proxy.AppConnConsensus, block *types.Block, mempool types.Mempool) error {
|
|
mempool.Lock()
|
|
defer mempool.Unlock()
|
|
|
|
// Commit block, get hash back
|
|
res := proxyAppConn.CommitSync()
|
|
if res.IsErr() {
|
|
s.logger.Error("Error in proxyAppConn.CommitSync", "err", res)
|
|
return res
|
|
}
|
|
if res.Log != "" {
|
|
s.logger.Debug("Commit.Log: " + res.Log)
|
|
}
|
|
|
|
s.logger.Info("Committed state", "height", block.Height, "txs", block.NumTxs, "hash", res.Data)
|
|
|
|
// Set the state's new AppHash
|
|
s.AppHash = res.Data
|
|
|
|
// Update mempool.
|
|
mempool.Update(block.Height, block.Txs)
|
|
|
|
return nil
|
|
}
|
|
|
|
func (s *State) indexTxs(abciResponses *ABCIResponses) {
|
|
// save the tx results using the TxIndexer
|
|
// NOTE: these may be overwriting, but the values should be the same.
|
|
batch := txindex.NewBatch(len(abciResponses.DeliverTx))
|
|
for i, d := range abciResponses.DeliverTx {
|
|
tx := abciResponses.txs[i]
|
|
batch.Add(types.TxResult{
|
|
Height: uint64(abciResponses.Height),
|
|
Index: uint32(i),
|
|
Tx: tx,
|
|
Result: *d,
|
|
})
|
|
}
|
|
s.TxIndexer.AddBatch(batch)
|
|
}
|
|
|
|
// ExecCommitBlock executes and commits a block on the proxyApp without validating or mutating the state.
|
|
// It returns the application root hash (result of abci.Commit).
|
|
func ExecCommitBlock(appConnConsensus proxy.AppConnConsensus, block *types.Block, logger log.Logger) ([]byte, error) {
|
|
var eventCache types.Fireable // nil
|
|
_, err := execBlockOnProxyApp(eventCache, appConnConsensus, block, logger)
|
|
if err != nil {
|
|
logger.Error("Error executing block on proxy app", "height", block.Height, "err", err)
|
|
return nil, err
|
|
}
|
|
// Commit block, get hash back
|
|
res := appConnConsensus.CommitSync()
|
|
if res.IsErr() {
|
|
logger.Error("Error in proxyAppConn.CommitSync", "err", res)
|
|
return nil, res
|
|
}
|
|
if res.Log != "" {
|
|
logger.Info("Commit.Log: " + res.Log)
|
|
}
|
|
return res.Data, nil
|
|
}
|