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| author | Jeffrey Wilcke <geffobscura@gmail.com> | 2016-10-08 06:23:45 +0800 |
|---|---|---|
| committer | Jeffrey Wilcke <jeffrey@ethereum.org> | 2016-10-15 00:09:17 +0800 |
| commit | 64af2aafdaf16d0bab4c2b89573324b076602bab (patch) | |
| tree | fb8f5d30ce7ff12ee8f56c3621254edea55885be /core/vm/instructions.go | |
| parent | eeb2a1a6e3c7a0c77ee6836f3103708cff4102ad (diff) | |
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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.
Diffstat (limited to 'core/vm/instructions.go')
| -rw-r--r-- | core/vm/instructions.go | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/core/vm/instructions.go b/core/vm/instructions.go index 79aee60d2..3352877c1 100644 --- a/core/vm/instructions.go +++ b/core/vm/instructions.go @@ -514,7 +514,12 @@ func opCreate(instr instruction, pc *uint64, env Environment, contract *Contract input = memory.Get(offset.Int64(), size.Int64()) gas = new(big.Int).Set(contract.Gas) ) - contract.UseGas(contract.Gas) + if env.RuleSet().GasTable(env.BlockNumber()).CreateBySuicide != nil { + gas.Div(gas, n64) + gas = gas.Sub(contract.Gas, gas) + } + + contract.UseGas(gas) _, addr, suberr := env.Create(contract, input, gas, contract.Price, value) // Push item on the stack based on the returned error. If the ruleset is // homestead we must check for CodeStoreOutOfGasError (homestead only |