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| author | Jeffrey Wilcke <jeffrey@ethereum.org> | 2016-10-20 19:36:29 +0800 |
|---|---|---|
| committer | Jeffrey Wilcke <jeffrey@ethereum.org> | 2016-11-13 17:44:04 +0800 |
| commit | 445feaeef58bd89a113743dccf6fd5df55cde6fa (patch) | |
| tree | 6c692a0989800f005a94bde2d372fcbe1f7630a1 /params/gas_table.go | |
| parent | 932d973e36ff0d41a6005b93d2d4ff1b4430fb04 (diff) | |
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core, core/state, trie: EIP158, reprice & skip empty account write
This commit implements EIP158 part 1, 2, 3 & 4
1. If an account is empty it's no longer written to the trie. An empty
account is defined as (balance=0, nonce=0, storage=0, code=0).
2. Delete an empty account if it's touched
3. An empty account is redefined as either non-existent or empty.
4. Zero value calls and zero value suicides no longer consume the 25k
reation costs.
params: moved core/config to params
Signed-off-by: Jeffrey Wilcke <jeffrey@ethereum.org>
Diffstat (limited to 'params/gas_table.go')
| -rw-r--r-- | params/gas_table.go | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/params/gas_table.go b/params/gas_table.go index 98f00a7ee..3b27cd522 100644 --- a/params/gas_table.go +++ b/params/gas_table.go @@ -26,6 +26,10 @@ type GasTable struct { Calls *big.Int Suicide *big.Int + Exp *big.Int + ExpOneByte *big.Int + Exp256 *big.Int + // CreateBySuicide occurs when the // refunded account is one that does // not exist. This logic is similar @@ -44,6 +48,7 @@ var ( SLoad: big.NewInt(50), Calls: big.NewInt(40), Suicide: big.NewInt(0), + Exp: big.NewInt(20), // explicitly set to nil to indicate // this rule does not apply to homestead. @@ -52,6 +57,8 @@ var ( // GasTableHomestead contain the gas re-prices for // the homestead phase. + // + // TODO rename to GasTableEIP150 GasTableHomesteadGasRepriceFork = GasTable{ ExtcodeSize: big.NewInt(700), ExtcodeCopy: big.NewInt(700), @@ -59,6 +66,21 @@ var ( SLoad: big.NewInt(200), Calls: big.NewInt(700), Suicide: big.NewInt(5000), + Exp: big.NewInt(20), + + CreateBySuicide: big.NewInt(25000), + } + + GasTableEIP158 = GasTable{ + ExtcodeSize: big.NewInt(700), + ExtcodeCopy: big.NewInt(700), + Balance: big.NewInt(400), + SLoad: big.NewInt(200), + Calls: big.NewInt(700), + Suicide: big.NewInt(5000), + Exp: big.NewInt(80), + ExpOneByte: big.NewInt(160), + Exp256: big.NewInt(2640), CreateBySuicide: big.NewInt(25000), } |