623b17ba20
This pull request introduces a state.Reader interface for state accessing. The interface could be implemented in various ways. It can be pure trie only reader, or the combination of trie and state snapshot. What's more, this interface allows us to have more flexibility in the future, e.g. the archive reader (for accessing archive state). Additionally, this pull request removes the following metrics - `chain/snapshot/account/reads` - `chain/snapshot/storage/reads`
77 lines
2.2 KiB
Go
77 lines
2.2 KiB
Go
// Copyright 2021 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package vm
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import (
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"testing"
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"time"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/common/math"
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"github.com/ethereum/go-ethereum/core/state"
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"github.com/ethereum/go-ethereum/core/types"
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"github.com/ethereum/go-ethereum/params"
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"github.com/holiman/uint256"
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)
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var loopInterruptTests = []string{
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// infinite loop using JUMP: push(2) jumpdest dup1 jump
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"60025b8056",
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// infinite loop using JUMPI: push(1) push(4) jumpdest dup2 dup2 jumpi
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"600160045b818157",
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}
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func TestLoopInterrupt(t *testing.T) {
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address := common.BytesToAddress([]byte("contract"))
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vmctx := BlockContext{
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Transfer: func(StateDB, common.Address, common.Address, *uint256.Int) {},
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}
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for i, tt := range loopInterruptTests {
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statedb, _ := state.New(types.EmptyRootHash, state.NewDatabaseForTesting())
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statedb.CreateAccount(address)
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statedb.SetCode(address, common.Hex2Bytes(tt))
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statedb.Finalise(true)
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evm := NewEVM(vmctx, TxContext{}, statedb, params.AllEthashProtocolChanges, Config{})
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errChannel := make(chan error)
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timeout := make(chan bool)
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go func(evm *EVM) {
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_, _, err := evm.Call(AccountRef(common.Address{}), address, nil, math.MaxUint64, new(uint256.Int))
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errChannel <- err
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}(evm)
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go func() {
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<-time.After(time.Second)
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timeout <- true
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}()
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evm.Cancel()
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select {
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case <-timeout:
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t.Errorf("test %d timed out", i)
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case err := <-errChannel:
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if err != nil {
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t.Errorf("test %d failure: %v", i, err)
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}
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}
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}
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}
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