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core/vm: use atomic.Bool (#26951)

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Make use of new atomic types
---------

Co-authored-by: Felix Lange <fjl@twurst.com>
Co-authored-by: Martin Holst Swende <martin@swende.se>
This commit is contained in:
s7v7nislands 2023-03-27 21:40:20 +08:00 committed by GitHub
parent 117530b0e6
commit 881fed032c
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 5 additions and 8 deletions
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7
core/vm/evm.go
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@ -114,8 +114,7 @@ type EVM struct {
// used throughout the execution of the tx. // used throughout the execution of the tx.
interpreter *EVMInterpreter interpreter *EVMInterpreter
// abort is used to abort the EVM calling operations // abort is used to abort the EVM calling operations
// NOTE: must be set atomically abort atomic.Bool
abort int32
// callGasTemp holds the gas available for the current call. This is needed because the // callGasTemp holds the gas available for the current call. This is needed because the
// available gas is calculated in gasCall* according to the 63/64 rule and later // available gas is calculated in gasCall* according to the 63/64 rule and later
// applied in opCall*. // applied in opCall*.
@ -147,12 +146,12 @@ func (evm *EVM) Reset(txCtx TxContext, statedb StateDB) {
// Cancel cancels any running EVM operation. This may be called concurrently and // Cancel cancels any running EVM operation. This may be called concurrently and
// it's safe to be called multiple times. // it's safe to be called multiple times.
func (evm *EVM) Cancel() { func (evm *EVM) Cancel() {
atomic.StoreInt32(&evm.abort, 1) evm.abort.Store(true)
} }
// Cancelled returns true if Cancel has been called // Cancelled returns true if Cancel has been called
func (evm *EVM) Cancelled() bool { func (evm *EVM) Cancelled() bool {
return atomic.LoadInt32(&evm.abort) == 1 return evm.abort.Load()
} }
// Interpreter returns the current interpreter // Interpreter returns the current interpreter

6
core/vm/instructions.go
View File

@ -17,8 +17,6 @@
package vm package vm
import ( import (
"sync/atomic"
"github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/crypto"
@ -531,7 +529,7 @@ func opSstore(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]b
} }
func opJump(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) { func opJump(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
if atomic.LoadInt32(&interpreter.evm.abort) != 0 { if interpreter.evm.abort.Load() {
return nil, errStopToken return nil, errStopToken
} }
pos := scope.Stack.pop() pos := scope.Stack.pop()
@ -543,7 +541,7 @@ func opJump(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byt
} }
func opJumpi(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) { func opJumpi(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
if atomic.LoadInt32(&interpreter.evm.abort) != 0 { if interpreter.evm.abort.Load() {
return nil, errStopToken return nil, errStopToken
} }
pos, cond := scope.Stack.pop(), scope.Stack.pop() pos, cond := scope.Stack.pop(), scope.Stack.pop()