8990c92aea
This changes the Trie interface to add the plain account address as a parameter to all storage-related methods. After the introduction of the TryAccount* functions, TryGet, TryUpdate and TryDelete are now only meant to read an account's storage. In their current form, they assume that an account storage is stored in a separate trie, and that the hashing of the slot is independent of its account's address. The proposed structure for a stateless storage breaks these two assumptions: the hashing of a slot key requires the address and all slots and accounts are stored in a single trie. This PR therefore adds an address parameter to the interface. It is ignored in the MPT version, so this change has no functional impact, however it will reduce the diff size when merging verkle trees.
111 lines
4.0 KiB
Go
111 lines
4.0 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 state
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import (
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"math/big"
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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/core/rawdb"
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)
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func filledStateDB() *StateDB {
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state, _ := New(common.Hash{}, NewDatabase(rawdb.NewMemoryDatabase()), nil)
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// Create an account and check if the retrieved balance is correct
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addr := common.HexToAddress("0xaffeaffeaffeaffeaffeaffeaffeaffeaffeaffe")
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skey := common.HexToHash("aaa")
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sval := common.HexToHash("bbb")
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state.SetBalance(addr, big.NewInt(42)) // Change the account trie
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state.SetCode(addr, []byte("hello")) // Change an external metadata
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state.SetState(addr, skey, sval) // Change the storage trie
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for i := 0; i < 100; i++ {
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sk := common.BigToHash(big.NewInt(int64(i)))
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state.SetState(addr, sk, sk) // Change the storage trie
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}
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return state
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}
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func TestCopyAndClose(t *testing.T) {
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db := filledStateDB()
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prefetcher := newTriePrefetcher(db.db, db.originalRoot, "")
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skey := common.HexToHash("aaa")
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prefetcher.prefetch(common.Hash{}, db.originalRoot, common.Address{}, [][]byte{skey.Bytes()})
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prefetcher.prefetch(common.Hash{}, db.originalRoot, common.Address{}, [][]byte{skey.Bytes()})
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time.Sleep(1 * time.Second)
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a := prefetcher.trie(common.Hash{}, db.originalRoot)
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prefetcher.prefetch(common.Hash{}, db.originalRoot, common.Address{}, [][]byte{skey.Bytes()})
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b := prefetcher.trie(common.Hash{}, db.originalRoot)
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cpy := prefetcher.copy()
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cpy.prefetch(common.Hash{}, db.originalRoot, common.Address{}, [][]byte{skey.Bytes()})
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cpy.prefetch(common.Hash{}, db.originalRoot, common.Address{}, [][]byte{skey.Bytes()})
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c := cpy.trie(common.Hash{}, db.originalRoot)
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prefetcher.close()
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cpy2 := cpy.copy()
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cpy2.prefetch(common.Hash{}, db.originalRoot, common.Address{}, [][]byte{skey.Bytes()})
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d := cpy2.trie(common.Hash{}, db.originalRoot)
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cpy.close()
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cpy2.close()
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if a.Hash() != b.Hash() || a.Hash() != c.Hash() || a.Hash() != d.Hash() {
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t.Fatalf("Invalid trie, hashes should be equal: %v %v %v %v", a.Hash(), b.Hash(), c.Hash(), d.Hash())
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}
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}
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func TestUseAfterClose(t *testing.T) {
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db := filledStateDB()
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prefetcher := newTriePrefetcher(db.db, db.originalRoot, "")
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skey := common.HexToHash("aaa")
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prefetcher.prefetch(common.Hash{}, db.originalRoot, common.Address{}, [][]byte{skey.Bytes()})
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a := prefetcher.trie(common.Hash{}, db.originalRoot)
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prefetcher.close()
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b := prefetcher.trie(common.Hash{}, db.originalRoot)
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if a == nil {
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t.Fatal("Prefetching before close should not return nil")
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}
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if b != nil {
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t.Fatal("Trie after close should return nil")
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}
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}
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func TestCopyClose(t *testing.T) {
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db := filledStateDB()
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prefetcher := newTriePrefetcher(db.db, db.originalRoot, "")
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skey := common.HexToHash("aaa")
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prefetcher.prefetch(common.Hash{}, db.originalRoot, common.Address{}, [][]byte{skey.Bytes()})
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cpy := prefetcher.copy()
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a := prefetcher.trie(common.Hash{}, db.originalRoot)
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b := cpy.trie(common.Hash{}, db.originalRoot)
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prefetcher.close()
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c := prefetcher.trie(common.Hash{}, db.originalRoot)
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d := cpy.trie(common.Hash{}, db.originalRoot)
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if a == nil {
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t.Fatal("Prefetching before close should not return nil")
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}
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if b == nil {
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t.Fatal("Copy trie should return nil")
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}
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if c != nil {
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t.Fatal("Trie after close should return nil")
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}
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if d == nil {
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t.Fatal("Copy trie should not return nil")
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}
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}
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