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accesswitness: avoid charging cost for origin and target (#334)

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* accesswitness: avoid charging cost for origin and target

Signed-off-by: Ignacio Hagopian <jsign.uy@gmail.com>

* make the linter happy

Signed-off-by: Ignacio Hagopian <jsign.uy@gmail.com>

---------

Signed-off-by: Ignacio Hagopian <jsign.uy@gmail.com>
This commit is contained in:
Ignacio Hagopian 2024-01-20 08:02:54 -03:00 committed by Guillaume Ballet
parent d6477cdc7d
commit f46632148c
2 changed files with 31 additions and 23 deletions
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44
core/state/access_witness.go
View file

@ -139,27 +139,35 @@ func (aw *AccessWitness) TouchAndChargeContractCreateCompleted(addr []byte) uint
}
func (aw *AccessWitness) TouchTxOriginAndComputeGas(originAddr []byte) uint64 {
var gas uint64
gas += aw.TouchAddressOnReadAndComputeGas(originAddr, zeroTreeIndex, utils.VersionLeafKey)
gas += aw.TouchAddressOnReadAndComputeGas(originAddr, zeroTreeIndex, utils.CodeSizeLeafKey)
gas += aw.TouchAddressOnReadAndComputeGas(originAddr, zeroTreeIndex, utils.CodeKeccakLeafKey)
gas += aw.TouchAddressOnWriteAndComputeGas(originAddr, zeroTreeIndex, utils.NonceLeafKey)
gas += aw.TouchAddressOnWriteAndComputeGas(originAddr, zeroTreeIndex, utils.BalanceLeafKey)
return gas
// var gas uint64
// gas += aw.TouchAddressOnReadAndComputeGas(originAddr, zeroTreeIndex, utils.VersionLeafKey)
// gas += aw.TouchAddressOnReadAndComputeGas(originAddr, zeroTreeIndex, utils.CodeSizeLeafKey)
// gas += aw.TouchAddressOnReadAndComputeGas(originAddr, zeroTreeIndex, utils.CodeKeccakLeafKey)
// gas += aw.TouchAddressOnWriteAndComputeGas(originAddr, zeroTreeIndex, utils.NonceLeafKey)
// gas += aw.TouchAddressOnWriteAndComputeGas(originAddr, zeroTreeIndex, utils.BalanceLeafKey)
// Kaustinen note: we're currently experimenting with stop chargin gas for the origin address
// so simple transfer still take 21000 gas. This is to potentially avoid breaking existing tooling.
// This is the reason why we return 0 instead of `gas`.
return 0
}
func (aw *AccessWitness) TouchTxExistingAndComputeGas(targetAddr []byte, sendsValue bool) uint64 {
var gas uint64
gas += aw.TouchAddressOnReadAndComputeGas(targetAddr, zeroTreeIndex, utils.VersionLeafKey)
gas += aw.TouchAddressOnReadAndComputeGas(targetAddr, zeroTreeIndex, utils.CodeSizeLeafKey)
gas += aw.TouchAddressOnReadAndComputeGas(targetAddr, zeroTreeIndex, utils.CodeKeccakLeafKey)
gas += aw.TouchAddressOnReadAndComputeGas(targetAddr, zeroTreeIndex, utils.NonceLeafKey)
if sendsValue {
gas += aw.TouchAddressOnWriteAndComputeGas(targetAddr, zeroTreeIndex, utils.BalanceLeafKey)
} else {
gas += aw.TouchAddressOnReadAndComputeGas(targetAddr, zeroTreeIndex, utils.BalanceLeafKey)
}
return gas
// var gas uint64
// gas += aw.TouchAddressOnReadAndComputeGas(targetAddr, zeroTreeIndex, utils.VersionLeafKey)
// gas += aw.TouchAddressOnReadAndComputeGas(targetAddr, zeroTreeIndex, utils.CodeSizeLeafKey)
// gas += aw.TouchAddressOnReadAndComputeGas(targetAddr, zeroTreeIndex, utils.CodeKeccakLeafKey)
// gas += aw.TouchAddressOnReadAndComputeGas(targetAddr, zeroTreeIndex, utils.NonceLeafKey)
// if sendsValue {
// gas += aw.TouchAddressOnWriteAndComputeGas(targetAddr, zeroTreeIndex, utils.BalanceLeafKey)
// } else {
// gas += aw.TouchAddressOnReadAndComputeGas(targetAddr, zeroTreeIndex, utils.BalanceLeafKey)
// }
// Kaustinen note: we're currently experimenting with stop chargin gas for the origin address
// so simple transfer still take 21000 gas. This is to potentially avoid breaking existing tooling.
// This is the reason why we return 0 instead of `gas`.
return 0
}
func (aw *AccessWitness) TouchAddressOnWriteAndComputeGas(addr []byte, treeIndex uint256.Int, subIndex byte) uint64 {

10
core/state_processor_test.go
View file

@ -17,7 +17,6 @@
package core
import (
//"bytes"
"crypto/ecdsa"
//"fmt"
@ -481,10 +480,10 @@ func TestProcessVerkle(t *testing.T) {
// is now independent of the blockchain database.
gspec.MustCommit(gendb)
txCost1 := params.WitnessBranchWriteCost*2 + params.WitnessBranchReadCost*2 + params.WitnessChunkWriteCost*3 + params.WitnessChunkReadCost*10 + params.TxGas
txCost2 := params.WitnessBranchWriteCost + params.WitnessBranchReadCost*2 + params.WitnessChunkWriteCost*2 + params.WitnessChunkReadCost*10 + params.TxGas
contractCreationCost := intrinsicContractCreationGas + uint64(6900 /* from */ +7700 /* creation */ +2939 /* execution costs */)
codeWithExtCodeCopyGas := intrinsicCodeWithExtCodeCopyGas + uint64(6900 /* from */ +7000 /* creation */ +315944 /* execution costs */)
txCost1 := params.TxGas
txCost2 := params.TxGas
contractCreationCost := intrinsicContractCreationGas + uint64(7700 /* creation */ +2939 /* execution costs */)
codeWithExtCodeCopyGas := intrinsicCodeWithExtCodeCopyGas + uint64(7000 /* creation */ +315944 /* execution costs */)
blockGasUsagesExpected := []uint64{
txCost1*2 + txCost2,
txCost1*2 + txCost2 + contractCreationCost + codeWithExtCodeCopyGas,
@ -492,6 +491,7 @@ func TestProcessVerkle(t *testing.T) {
// TODO utiliser GenerateChainWithGenesis pour le rendre plus pratique
chain, _, proofs, keyvals := GenerateVerkleChain(gspec.Config, genesis, beacon.New(ethash.NewFaker()), gendb, 2, func(i int, gen *BlockGen) {
gen.SetPoS()
// TODO need to check that the tx cost provided is the exact amount used (no remaining left-over)
tx, _ := types.SignTx(types.NewTransaction(uint64(i)*3, common.Address{byte(i), 2, 3}, big.NewInt(999), txCost1, big.NewInt(875000000), nil), signer, testKey)
gen.AddTx(tx)