cerc-io/plugeth
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xeth, core, cmd/utils: Transaction can not be over block gas limit

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Transactions will be invalidated when the tx.gas_limit > block.gas_limit
This commit is contained in:
obscuren 2015-04-24 17:45:51 +02:00
parent 3bb6da9bd3
commit 405720b218
8 changed files with 37 additions and 18 deletions
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2
cmd/utils/flags.go
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@ -317,7 +317,7 @@ func GetChain(ctx *cli.Context) (*core.ChainManager, common.Database, common.Dat
eventMux := new(event.TypeMux)
chainManager := core.NewChainManager(blockDb, stateDb, eventMux)
pow := ethash.New(chainManager)
txPool := core.NewTxPool(eventMux, chainManager.State)
txPool := core.NewTxPool(eventMux, chainManager.State, chainManager.GasLimit)
blockProcessor := core.NewBlockProcessor(stateDb, extraDb, pow, txPool, chainManager, eventMux)
chainManager.SetProcessor(blockProcessor)

2
core/chain_makers.go
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@ -124,7 +124,7 @@ func newChainManager(block *types.Block, eventMux *event.TypeMux, db common.Data
// block processor with fake pow
func newBlockProcessor(db common.Database, cman *ChainManager, eventMux *event.TypeMux) *BlockProcessor {
chainMan := newChainManager(nil, eventMux, db)
txpool := NewTxPool(eventMux, chainMan.State)
txpool := NewTxPool(eventMux, chainMan.State, chainMan.GasLimit)
bman := NewBlockProcessor(db, db, FakePow{}, txpool, chainMan, eventMux)
return bman
}

29
core/chain_manager.go
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@ -78,11 +78,12 @@ type ChainManager struct {
eventMux *event.TypeMux
genesisBlock *types.Block
// Last known total difficulty
mu sync.RWMutex
tsmu sync.RWMutex
td *big.Int
currentBlock *types.Block
lastBlockHash common.Hash
mu sync.RWMutex
tsmu sync.RWMutex
td *big.Int
currentBlock *types.Block
lastBlockHash common.Hash
currentGasLimit *big.Int
transState *state.StateDB
txState *state.ManagedState
@ -95,12 +96,13 @@ type ChainManager struct {
func NewChainManager(blockDb, stateDb common.Database, mux *event.TypeMux) *ChainManager {
bc := &ChainManager{
blockDb: blockDb,
stateDb: stateDb,
genesisBlock: GenesisBlock(stateDb),
eventMux: mux,
quit: make(chan struct{}),
cache: NewBlockCache(blockCacheLimit),
blockDb: blockDb,
stateDb: stateDb,
genesisBlock: GenesisBlock(stateDb),
eventMux: mux,
quit: make(chan struct{}),
cache: NewBlockCache(blockCacheLimit),
currentGasLimit: new(big.Int),
}
bc.setLastBlock()
@ -157,6 +159,10 @@ func (self *ChainManager) Td() *big.Int {
return self.td
}
func (self *ChainManager) GasLimit() *big.Int {
return self.currentGasLimit
}
func (self *ChainManager) LastBlockHash() common.Hash {
self.mu.RLock()
defer self.mu.RUnlock()
@ -652,6 +658,7 @@ out:
// We need some control over the mining operation. Acquiring locks and waiting for the miner to create new block takes too long
// and in most cases isn't even necessary.
if i+1 == ev.canonicalCount {
self.currentGasLimit = CalcGasLimit(self.GetBlock(event.Block.ParentHash()), event.Block)
self.eventMux.Post(ChainHeadEvent{event.Block})
}
case ChainSplitEvent:

4
core/chain_manager_test.go
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@ -256,7 +256,7 @@ func TestChainInsertions(t *testing.T) {
var eventMux event.TypeMux
chainMan := NewChainManager(db, db, &eventMux)
txPool := NewTxPool(&eventMux, chainMan.State)
txPool := NewTxPool(&eventMux, chainMan.State, func() *big.Int { return big.NewInt(100000000) })
blockMan := NewBlockProcessor(db, db, nil, txPool, chainMan, &eventMux)
chainMan.SetProcessor(blockMan)
@ -302,7 +302,7 @@ func TestChainMultipleInsertions(t *testing.T) {
}
var eventMux event.TypeMux
chainMan := NewChainManager(db, db, &eventMux)
txPool := NewTxPool(&eventMux, chainMan.State)
txPool := NewTxPool(&eventMux, chainMan.State, func() *big.Int { return big.NewInt(100000000) })
blockMan := NewBlockProcessor(db, db, nil, txPool, chainMan, &eventMux)
chainMan.SetProcessor(blockMan)
done := make(chan bool, max)

10
core/transaction_pool.go
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@ -23,6 +23,7 @@ var (
ErrNonExistentAccount = errors.New("Account does not exist")
ErrInsufficientFunds = errors.New("Insufficient funds")
ErrIntrinsicGas = errors.New("Intrinsic gas too low")
ErrGasLimit = errors.New("Exceeds block gas limit")
)
const txPoolQueueSize = 50
@ -52,6 +53,8 @@ type TxPool struct {
quit chan bool
// The state function which will allow us to do some pre checkes
currentState stateFn
// The current gas limit function callback
gasLimit func() *big.Int
// The actual pool
txs map[common.Hash]*types.Transaction
invalidHashes *set.Set
@ -63,7 +66,7 @@ type TxPool struct {
eventMux *event.TypeMux
}
func NewTxPool(eventMux *event.TypeMux, currentStateFn stateFn) *TxPool {
func NewTxPool(eventMux *event.TypeMux, currentStateFn stateFn, gasLimitFn func() *big.Int) *TxPool {
txPool := &TxPool{
txs: make(map[common.Hash]*types.Transaction),
queue: make(map[common.Address]types.Transactions),
@ -72,6 +75,7 @@ func NewTxPool(eventMux *event.TypeMux, currentStateFn stateFn) *TxPool {
eventMux: eventMux,
invalidHashes: set.New(),
currentState: currentStateFn,
gasLimit: gasLimitFn,
}
return txPool
}
@ -116,6 +120,10 @@ func (pool *TxPool) ValidateTransaction(tx *types.Transaction) error {
return ErrNonExistentAccount
}
if pool.gasLimit().Cmp(tx.GasLimit) < 0 {
return ErrGasLimit
}
if pool.currentState().GetBalance(from).Cmp(new(big.Int).Mul(tx.Price, tx.GasLimit)) < 0 {
return ErrInsufficientFunds
}

2
core/transaction_pool_test.go
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@ -23,7 +23,7 @@ func setupTxPool() (*TxPool, *ecdsa.PrivateKey) {
var m event.TypeMux
key, _ := crypto.GenerateKey()
return NewTxPool(&m, func() *state.StateDB { return statedb }), key
return NewTxPool(&m, func() *state.StateDB { return statedb }, func() *big.Int { return big.NewInt(1000000) }), key
}
func TestInvalidTransactions(t *testing.T) {

2
eth/backend.go
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@ -219,7 +219,7 @@ func New(config *Config) (*Ethereum, error) {
eth.chainManager = core.NewChainManager(blockDb, stateDb, eth.EventMux())
eth.downloader = downloader.New(eth.chainManager.HasBlock, eth.chainManager.InsertChain)
eth.pow = ethash.New(eth.chainManager)
eth.txPool = core.NewTxPool(eth.EventMux(), eth.chainManager.State)
eth.txPool = core.NewTxPool(eth.EventMux(), eth.chainManager.State, eth.chainManager.GasLimit)
eth.blockProcessor = core.NewBlockProcessor(stateDb, extraDb, eth.pow, eth.txPool, eth.chainManager, eth.EventMux())
eth.chainManager.SetProcessor(eth.blockProcessor)
eth.whisper = whisper.New()

4
xeth/xeth.go
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@ -236,6 +236,10 @@ func (self *XEth) CurrentBlock() *types.Block {
return self.backend.ChainManager().CurrentBlock()
}
func (self *XEth) GasLimit() *big.Int {
return self.backend.ChainManager().GasLimit()
}
func (self *XEth) Block(v interface{}) *Block {
if n, ok := v.(int32); ok {
return self.BlockByNumber(int64(n))