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core, core/state: move gas tracking out of core/state

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The amount of gas available for tx execution was tracked in the
StateObject representing the coinbase account. This commit makes the gas
counter a separate type in package core, which avoids unintended
consequences of intertwining the counter with state logic.
This commit is contained in:
Felix Lange
2015-09-02 12:55:11 +02:00
parent 10ed107ba2
commit de8d5aaa92
10 changed files with 92 additions and 142 deletions
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25
miner/worker.go
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@ -62,13 +62,12 @@ type uint64RingBuffer struct {
// environment is the workers current environment and holds
// all of the current state information
type Work struct {
state *state.StateDB // apply state changes here
coinbase *state.StateObject // the miner's account
ancestors *set.Set // ancestor set (used for checking uncle parent validity)
family *set.Set // family set (used for checking uncle invalidity)
uncles *set.Set // uncle set
remove *set.Set // tx which will be removed
tcount int // tx count in cycle
state *state.StateDB // apply state changes here
ancestors *set.Set // ancestor set (used for checking uncle parent validity)
family *set.Set // family set (used for checking uncle invalidity)
uncles *set.Set // uncle set
remove *set.Set // tx which will be removed
tcount int // tx count in cycle
ignoredTransactors *set.Set
lowGasTransactors *set.Set
ownedAccounts *set.Set
@ -366,7 +365,6 @@ func (self *worker) makeCurrent(parent *types.Block, header *types.Header) error
family: set.New(),
uncles: set.New(),
header: header,
coinbase: state.GetOrNewStateObject(self.coinbase),
createdAt: time.Now(),
}
@ -514,7 +512,6 @@ func (self *worker) commitNewWork() {
transactions := append(singleTxOwner, multiTxOwner...)
*/
work.coinbase.SetGasLimit(header.GasLimit)
work.commitTransactions(transactions, self.gasPrice, self.proc)
self.eth.TxPool().RemoveTransactions(work.lowGasTxs)
@ -575,6 +572,8 @@ func (self *worker) commitUncle(work *Work, uncle *types.Header) error {
}
func (env *Work) commitTransactions(transactions types.Transactions, gasPrice *big.Int, proc *core.BlockProcessor) {
gp := new(core.GasPool).AddGas(env.header.GasLimit)
for _, tx := range transactions {
// We can skip err. It has already been validated in the tx pool
from, _ := tx.From()
@ -612,9 +611,9 @@ func (env *Work) commitTransactions(transactions types.Transactions, gasPrice *b
env.state.StartRecord(tx.Hash(), common.Hash{}, 0)
err := env.commitTransaction(tx, proc)
err := env.commitTransaction(tx, proc, gp)
switch {
case state.IsGasLimitErr(err):
case core.IsGasLimitErr(err):
// ignore the transactor so no nonce errors will be thrown for this account
// next time the worker is run, they'll be picked up again.
env.ignoredTransactors.Add(from)
@ -632,9 +631,9 @@ func (env *Work) commitTransactions(transactions types.Transactions, gasPrice *b
}
}
func (env *Work) commitTransaction(tx *types.Transaction, proc *core.BlockProcessor) error {
func (env *Work) commitTransaction(tx *types.Transaction, proc *core.BlockProcessor, gp *core.GasPool) error {
snap := env.state.Copy()
receipt, _, err := proc.ApplyTransaction(env.coinbase, env.state, env.header, tx, env.header.GasUsed, true)
receipt, _, err := proc.ApplyTransaction(gp, env.state, env.header, tx, env.header.GasUsed, true)
if err != nil {
env.state.Set(snap)
return err