From 64af2aafdaf16d0bab4c2b89573324b076602bab Mon Sep 17 00:00:00 2001 From: Jeffrey Wilcke Date: Sat, 8 Oct 2016 00:23:45 +0200 Subject: core, core/vm: added gas price variance table This implements 1b & 1c of EIP150 by adding a new GasTable which must be returned from the RuleSet config method. This table is used to determine the gas prices for the current epoch. Please note that when the CreateBySuicide gas price is set it is assumed that we're in the new epoch phase. In addition this PR will serve as temporary basis while refactorisation in being done in the EVM64 PR, which will substentially overhaul the gas price code. --- params/gas_table.go | 65 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 params/gas_table.go (limited to 'params/gas_table.go') diff --git a/params/gas_table.go b/params/gas_table.go new file mode 100644 index 000000000..98f00a7ee --- /dev/null +++ b/params/gas_table.go @@ -0,0 +1,65 @@ +// Copyright 2016 The go-ethereum Authors +// This file is part of the go-ethereum library. +// +// The go-ethereum library is free software: you can redistribute it and/or modify +// it under the terms of the GNU Lesser General Public License as published by +// the Free Software Foundation, either version 3 of the License, or +// (at your option) any later version. +// +// The go-ethereum library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public License +// along with the go-ethereum library. If not, see . + +package params + +import "math/big" + +type GasTable struct { + ExtcodeSize *big.Int + ExtcodeCopy *big.Int + Balance *big.Int + SLoad *big.Int + Calls *big.Int + Suicide *big.Int + + // CreateBySuicide occurs when the + // refunded account is one that does + // not exist. This logic is similar + // to call. May be left nil. Nil means + // not charged. + CreateBySuicide *big.Int +} + +var ( + // GasTableHomestead contain the gas prices for + // the homestead phase. + GasTableHomestead = GasTable{ + ExtcodeSize: big.NewInt(20), + ExtcodeCopy: big.NewInt(20), + Balance: big.NewInt(20), + SLoad: big.NewInt(50), + Calls: big.NewInt(40), + Suicide: big.NewInt(0), + + // explicitly set to nil to indicate + // this rule does not apply to homestead. + CreateBySuicide: nil, + } + + // GasTableHomestead contain the gas re-prices for + // the homestead phase. + GasTableHomesteadGasRepriceFork = 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), + + CreateBySuicide: big.NewInt(25000), + } +) -- cgit