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authorJeffrey Wilcke <jeffrey@ethereum.org>2016-10-20 19:36:29 +0800
committerJeffrey Wilcke <jeffrey@ethereum.org>2016-11-13 17:44:04 +0800
commit445feaeef58bd89a113743dccf6fd5df55cde6fa (patch)
tree6c692a0989800f005a94bde2d372fcbe1f7630a1 /params/gas_table.go
parent932d973e36ff0d41a6005b93d2d4ff1b4430fb04 (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.go22
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),
}