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core: transaction nonce recovery fix

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When the transaction state recovery kicked in it assigned the last
(incorrect) nonce to the pending state which caused transactions with
the same nonce to occur.

Added test for nonce recovery
This commit is contained in:
Jeffrey Wilcke 2015-09-18 11:59:21 +02:00
parent 985b5f29ed
commit b60a27627b
2 changed files with 21 additions and 2 deletions
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4
core/transaction_pool.go
View File

@ -121,8 +121,8 @@ func (pool *TxPool) resetState() {
if addr, err := tx.From(); err == nil {
// Set the nonce. Transaction nonce can never be lower
// than the state nonce; validatePool took care of that.
if pool.pendingState.GetNonce(addr) < tx.Nonce() {
pool.pendingState.SetNonce(addr, tx.Nonce())
if pool.pendingState.GetNonce(addr) <= tx.Nonce() {
pool.pendingState.SetNonce(addr, tx.Nonce()+1)
}
}
}

19
core/transaction_pool_test.go
View File

@ -219,3 +219,22 @@ func TestMissingNonce(t *testing.T) {
t.Error("expected 1 queued transaction, got", len(pool.queue[addr]))
}
}
func TestNonceRecovery(t *testing.T) {
const n = 10
pool, key := setupTxPool()
addr := crypto.PubkeyToAddress(key.PublicKey)
pool.currentState().SetNonce(addr, n)
pool.currentState().AddBalance(addr, big.NewInt(100000000000000))
pool.resetState()
tx := transaction(n, big.NewInt(100000), key)
if err := pool.Add(tx); err != nil {
t.Error(err)
}
// simulate some weird re-order of transactions and missing nonce(s)
pool.currentState().SetNonce(addr, n-1)
pool.resetState()
if fn := pool.pendingState.GetNonce(addr); fn != n+1 {
t.Errorf("expected nonce to be %d, got %d", n+1, fn)
}
}