From 9e5f03b6c487175cc5aa1224e5e12fd573f483a7 Mon Sep 17 00:00:00 2001 From: Felix Lange Date: Tue, 27 Jun 2017 15:57:06 +0200 Subject: [PATCH] core/state: access trie through Database interface, track errors (#14589) With this commit, core/state's access to the underlying key/value database is mediated through an interface. Database errors are tracked in StateDB and returned by CommitTo or the new Error method. Motivation for this change: We can remove the light client's duplicated copy of core/state. The light client now supports node iteration, so tracing and storage enumeration can work with the light client (not implemented in this commit). --- accounts/abi/bind/backends/simulated.go | 4 +- cmd/evm/runner.go | 6 +- cmd/geth/chaincmd.go | 2 +- core/block_validator.go | 12 +- core/blockchain.go | 38 ++- core/blockchain_test.go | 10 +- core/chain_makers.go | 4 +- core/genesis.go | 2 +- core/state/database.go | 154 ++++++++++++ core/state/dump.go | 2 +- core/state/iterator.go | 13 +- core/state/iterator_test.go | 8 +- core/state/managed_state_test.go | 2 +- core/state/state_object.go | 56 +++-- core/state/state_test.go | 39 ++- core/state/statedb.go | 139 +++-------- core/state/statedb_test.go | 40 +-- core/state/sync_test.go | 75 +++--- core/tx_pool_test.go | 24 +- core/vm/runtime/runtime.go | 4 +- core/vm/runtime/runtime_test.go | 2 +- eth/api.go | 2 +- eth/api_backend.go | 35 +-- eth/api_test.go | 2 +- eth/bind.go | 6 +- eth/downloader/downloader_test.go | 2 +- eth/handler_test.go | 2 +- internal/ethapi/api.go | 33 +-- internal/ethapi/backend.go | 13 +- les/api_backend.go | 20 +- les/odr_test.go | 53 ++-- les/request_test.go | 2 +- light/lightchain.go | 5 - light/odr.go | 8 +- light/odr_test.go | 164 ++++++------ light/odr_util.go | 19 -- light/state.go | 316 ------------------------ light/state_object.go | 275 --------------------- light/state_test.go | 248 ------------------- light/trie.go | 251 ++++++++++++++----- light/trie_test.go | 83 +++++++ light/txpool.go | 32 +-- light/vm_env.go | 194 --------------- miner/worker.go | 2 +- tests/block_test_util.go | 4 +- tests/state_test_util.go | 48 +--- tests/util.go | 7 +- trie/proof.go | 5 +- trie/secure_trie.go | 5 + 49 files changed, 809 insertions(+), 1663 deletions(-) create mode 100644 core/state/database.go delete mode 100644 light/state.go delete mode 100644 light/state_object.go delete mode 100644 light/state_test.go create mode 100644 light/trie_test.go delete mode 100644 light/vm_env.go diff --git a/accounts/abi/bind/backends/simulated.go b/accounts/abi/bind/backends/simulated.go index 159fca136e39..7ac8b58204a4 100644 --- a/accounts/abi/bind/backends/simulated.go +++ b/accounts/abi/bind/backends/simulated.go @@ -90,7 +90,7 @@ func (b *SimulatedBackend) Rollback() { func (b *SimulatedBackend) rollback() { blocks, _ := core.GenerateChain(b.config, b.blockchain.CurrentBlock(), b.database, 1, func(int, *core.BlockGen) {}) b.pendingBlock = blocks[0] - b.pendingState, _ = state.New(b.pendingBlock.Root(), b.database) + b.pendingState, _ = state.New(b.pendingBlock.Root(), state.NewDatabase(b.database)) } // CodeAt returns the code associated with a certain account in the blockchain. @@ -279,7 +279,7 @@ func (b *SimulatedBackend) SendTransaction(ctx context.Context, tx *types.Transa block.AddTx(tx) }) b.pendingBlock = blocks[0] - b.pendingState, _ = state.New(b.pendingBlock.Root(), b.database) + b.pendingState, _ = state.New(b.pendingBlock.Root(), state.NewDatabase(b.database)) return nil } diff --git a/cmd/evm/runner.go b/cmd/evm/runner.go index 2ce0920f69b5..3f95a0c93a35 100644 --- a/cmd/evm/runner.go +++ b/cmd/evm/runner.go @@ -98,8 +98,8 @@ func runCmd(ctx *cli.Context) error { _, statedb = gen.ToBlock() chainConfig = gen.Config } else { - var db, _ = ethdb.NewMemDatabase() - statedb, _ = state.New(common.Hash{}, db) + db, _ := ethdb.NewMemDatabase() + statedb, _ = state.New(common.Hash{}, state.NewDatabase(db)) } if ctx.GlobalString(SenderFlag.Name) != "" { sender = common.HexToAddress(ctx.GlobalString(SenderFlag.Name)) @@ -188,7 +188,7 @@ func runCmd(ctx *cli.Context) error { execTime := time.Since(tstart) if ctx.GlobalBool(DumpFlag.Name) { - statedb.Commit(true) + statedb.IntermediateRoot(true) fmt.Println(string(statedb.Dump())) } diff --git a/cmd/geth/chaincmd.go b/cmd/geth/chaincmd.go index ab0e92f21301..12bc1d7c66dd 100644 --- a/cmd/geth/chaincmd.go +++ b/cmd/geth/chaincmd.go @@ -312,7 +312,7 @@ func dump(ctx *cli.Context) error { fmt.Println("{}") utils.Fatalf("block not found") } else { - state, err := state.New(block.Root(), chainDb) + state, err := state.New(block.Root(), state.NewDatabase(chainDb)) if err != nil { utils.Fatalf("could not create new state: %v", err) } diff --git a/core/block_validator.go b/core/block_validator.go index 4f85df0070b3..e9cfd04827cd 100644 --- a/core/block_validator.go +++ b/core/block_validator.go @@ -52,16 +52,10 @@ func NewBlockValidator(config *params.ChainConfig, blockchain *BlockChain, engin // validated at this point. func (v *BlockValidator) ValidateBody(block *types.Block) error { // Check whether the block's known, and if not, that it's linkable - if v.bc.HasBlock(block.Hash()) { - if _, err := state.New(block.Root(), v.bc.chainDb); err == nil { - return ErrKnownBlock - } + if v.bc.HasBlockAndState(block.Hash()) { + return ErrKnownBlock } - parent := v.bc.GetBlock(block.ParentHash(), block.NumberU64()-1) - if parent == nil { - return consensus.ErrUnknownAncestor - } - if _, err := state.New(parent.Root(), v.bc.chainDb); err != nil { + if !v.bc.HasBlockAndState(block.ParentHash()) { return consensus.ErrUnknownAncestor } // Header validity is known at this point, check the uncles and transactions diff --git a/core/blockchain.go b/core/blockchain.go index 073b91bab42a..aab2e72f3a2f 100644 --- a/core/blockchain.go +++ b/core/blockchain.go @@ -92,7 +92,7 @@ type BlockChain struct { currentBlock *types.Block // Current head of the block chain currentFastBlock *types.Block // Current head of the fast-sync chain (may be above the block chain!) - stateCache *state.StateDB // State database to reuse between imports (contains state cache) + stateCache state.Database // State database to reuse between imports (contains state cache) bodyCache *lru.Cache // Cache for the most recent block bodies bodyRLPCache *lru.Cache // Cache for the most recent block bodies in RLP encoded format blockCache *lru.Cache // Cache for the most recent entire blocks @@ -125,6 +125,7 @@ func NewBlockChain(chainDb ethdb.Database, config *params.ChainConfig, engine co bc := &BlockChain{ config: config, chainDb: chainDb, + stateCache: state.NewDatabase(chainDb), eventMux: mux, quit: make(chan struct{}), bodyCache: bodyCache, @@ -190,7 +191,7 @@ func (bc *BlockChain) loadLastState() error { return bc.Reset() } // Make sure the state associated with the block is available - if _, err := state.New(currentBlock.Root(), bc.chainDb); err != nil { + if _, err := state.New(currentBlock.Root(), bc.stateCache); err != nil { // Dangling block without a state associated, init from scratch log.Warn("Head state missing, resetting chain", "number", currentBlock.Number(), "hash", currentBlock.Hash()) return bc.Reset() @@ -214,12 +215,6 @@ func (bc *BlockChain) loadLastState() error { bc.currentFastBlock = block } } - // Initialize a statedb cache to ensure singleton account bloom filter generation - statedb, err := state.New(bc.currentBlock.Root(), bc.chainDb) - if err != nil { - return err - } - bc.stateCache = statedb // Issue a status log for the user headerTd := bc.GetTd(currentHeader.Hash(), currentHeader.Number.Uint64()) @@ -261,7 +256,7 @@ func (bc *BlockChain) SetHead(head uint64) error { bc.currentBlock = bc.GetBlock(currentHeader.Hash(), currentHeader.Number.Uint64()) } if bc.currentBlock != nil { - if _, err := state.New(bc.currentBlock.Root(), bc.chainDb); err != nil { + if _, err := state.New(bc.currentBlock.Root(), bc.stateCache); err != nil { // Rewound state missing, rolled back to before pivot, reset to genesis bc.currentBlock = nil } @@ -384,7 +379,7 @@ func (bc *BlockChain) State() (*state.StateDB, error) { // StateAt returns a new mutable state based on a particular point in time. func (bc *BlockChain) StateAt(root common.Hash) (*state.StateDB, error) { - return bc.stateCache.New(root) + return state.New(root, bc.stateCache) } // Reset purges the entire blockchain, restoring it to its genesis state. @@ -531,7 +526,7 @@ func (bc *BlockChain) HasBlockAndState(hash common.Hash) bool { return false } // Ensure the associated state is also present - _, err := state.New(block.Root(), bc.chainDb) + _, err := bc.stateCache.OpenTrie(block.Root()) return err == nil } @@ -959,31 +954,30 @@ func (bc *BlockChain) InsertChain(chain types.Blocks) (int, error) { } // Create a new statedb using the parent block and report an // error if it fails. - switch { - case i == 0: - err = bc.stateCache.Reset(bc.GetBlock(block.ParentHash(), block.NumberU64()-1).Root()) - default: - err = bc.stateCache.Reset(chain[i-1].Root()) + var parent *types.Block + if i == 0 { + parent = bc.GetBlock(block.ParentHash(), block.NumberU64()-1) + } else { + parent = chain[i-1] } + state, err := state.New(parent.Root(), bc.stateCache) if err != nil { - bc.reportBlock(block, nil, err) return i, err } // Process block using the parent state as reference point. - receipts, logs, usedGas, err := bc.processor.Process(block, bc.stateCache, bc.vmConfig) + receipts, logs, usedGas, err := bc.processor.Process(block, state, bc.vmConfig) if err != nil { bc.reportBlock(block, receipts, err) return i, err } // Validate the state using the default validator - err = bc.Validator().ValidateState(block, bc.GetBlock(block.ParentHash(), block.NumberU64()-1), bc.stateCache, receipts, usedGas) + err = bc.Validator().ValidateState(block, parent, state, receipts, usedGas) if err != nil { bc.reportBlock(block, receipts, err) return i, err } // Write state changes to database - _, err = bc.stateCache.Commit(bc.config.IsEIP158(block.Number())) - if err != nil { + if _, err = state.CommitTo(bc.chainDb, bc.config.IsEIP158(block.Number())); err != nil { return i, err } @@ -1021,7 +1015,7 @@ func (bc *BlockChain) InsertChain(chain types.Blocks) (int, error) { return i, err } // Write hash preimages - if err := WritePreimages(bc.chainDb, block.NumberU64(), bc.stateCache.Preimages()); err != nil { + if err := WritePreimages(bc.chainDb, block.NumberU64(), state.Preimages()); err != nil { return i, err } case SideStatTy: diff --git a/core/blockchain_test.go b/core/blockchain_test.go index 7505208e18ba..371522ab77b9 100644 --- a/core/blockchain_test.go +++ b/core/blockchain_test.go @@ -131,7 +131,7 @@ func testBlockChainImport(chain types.Blocks, blockchain *BlockChain) error { } return err } - statedb, err := state.New(blockchain.GetBlockByHash(block.ParentHash()).Root(), blockchain.chainDb) + statedb, err := state.New(blockchain.GetBlockByHash(block.ParentHash()).Root(), blockchain.stateCache) if err != nil { return err } @@ -148,7 +148,7 @@ func testBlockChainImport(chain types.Blocks, blockchain *BlockChain) error { blockchain.mu.Lock() WriteTd(blockchain.chainDb, block.Hash(), block.NumberU64(), new(big.Int).Add(block.Difficulty(), blockchain.GetTdByHash(block.ParentHash()))) WriteBlock(blockchain.chainDb, block) - statedb.Commit(false) + statedb.CommitTo(blockchain.chainDb, false) blockchain.mu.Unlock() } return nil @@ -1131,7 +1131,7 @@ func TestEIP161AccountRemoval(t *testing.T) { if _, err := blockchain.InsertChain(types.Blocks{blocks[0]}); err != nil { t.Fatal(err) } - if !blockchain.stateCache.Exist(theAddr) { + if st, _ := blockchain.State(); !st.Exist(theAddr) { t.Error("expected account to exist") } @@ -1139,7 +1139,7 @@ func TestEIP161AccountRemoval(t *testing.T) { if _, err := blockchain.InsertChain(types.Blocks{blocks[1]}); err != nil { t.Fatal(err) } - if blockchain.stateCache.Exist(theAddr) { + if st, _ := blockchain.State(); st.Exist(theAddr) { t.Error("account should not exist") } @@ -1147,7 +1147,7 @@ func TestEIP161AccountRemoval(t *testing.T) { if _, err := blockchain.InsertChain(types.Blocks{blocks[2]}); err != nil { t.Fatal(err) } - if blockchain.stateCache.Exist(theAddr) { + if st, _ := blockchain.State(); st.Exist(theAddr) { t.Error("account should not exist") } } diff --git a/core/chain_makers.go b/core/chain_makers.go index cc14f8fb8225..38a69d42a9bf 100644 --- a/core/chain_makers.go +++ b/core/chain_makers.go @@ -181,7 +181,7 @@ func GenerateChain(config *params.ChainConfig, parent *types.Block, db ethdb.Dat gen(i, b) } ethash.AccumulateRewards(statedb, h, b.uncles) - root, err := statedb.Commit(config.IsEIP158(h.Number)) + root, err := statedb.CommitTo(db, config.IsEIP158(h.Number)) if err != nil { panic(fmt.Sprintf("state write error: %v", err)) } @@ -189,7 +189,7 @@ func GenerateChain(config *params.ChainConfig, parent *types.Block, db ethdb.Dat return types.NewBlock(h, b.txs, b.uncles, b.receipts), b.receipts } for i := 0; i < n; i++ { - statedb, err := state.New(parent.Root(), db) + statedb, err := state.New(parent.Root(), state.NewDatabase(db)) if err != nil { panic(err) } diff --git a/core/genesis.go b/core/genesis.go index 947a53c70032..5815d5901b82 100644 --- a/core/genesis.go +++ b/core/genesis.go @@ -176,7 +176,7 @@ func (g *Genesis) configOrDefault(ghash common.Hash) *params.ChainConfig { // ToBlock creates the block and state of a genesis specification. func (g *Genesis) ToBlock() (*types.Block, *state.StateDB) { db, _ := ethdb.NewMemDatabase() - statedb, _ := state.New(common.Hash{}, db) + statedb, _ := state.New(common.Hash{}, state.NewDatabase(db)) for addr, account := range g.Alloc { statedb.AddBalance(addr, account.Balance) statedb.SetCode(addr, account.Code) diff --git a/core/state/database.go b/core/state/database.go new file mode 100644 index 000000000000..946625e76e1f --- /dev/null +++ b/core/state/database.go @@ -0,0 +1,154 @@ +// Copyright 2017 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 state + +import ( + "fmt" + "sync" + + "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/ethdb" + "github.com/ethereum/go-ethereum/trie" + lru "github.com/hashicorp/golang-lru" +) + +// Trie cache generation limit after which to evic trie nodes from memory. +var MaxTrieCacheGen = uint16(120) + +const ( + // Number of past tries to keep. This value is chosen such that + // reasonable chain reorg depths will hit an existing trie. + maxPastTries = 12 + + // Number of codehash->size associations to keep. + codeSizeCacheSize = 100000 +) + +// Database wraps access to tries and contract code. +type Database interface { + // Accessing tries: + // OpenTrie opens the main account trie. + // OpenStorageTrie opens the storage trie of an account. + OpenTrie(root common.Hash) (Trie, error) + OpenStorageTrie(addrHash, root common.Hash) (Trie, error) + // Accessing contract code: + ContractCode(addrHash, codeHash common.Hash) ([]byte, error) + ContractCodeSize(addrHash, codeHash common.Hash) (int, error) + // CopyTrie returns an independent copy of the given trie. + CopyTrie(Trie) Trie +} + +// Trie is a Ethereum Merkle Trie. +type Trie interface { + TryGet(key []byte) ([]byte, error) + TryUpdate(key, value []byte) error + TryDelete(key []byte) error + CommitTo(trie.DatabaseWriter) (common.Hash, error) + Hash() common.Hash + NodeIterator(startKey []byte) trie.NodeIterator + GetKey([]byte) []byte // TODO(fjl): remove this when SecureTrie is removed +} + +// NewDatabase creates a backing store for state. The returned database is safe for +// concurrent use and retains cached trie nodes in memory. +func NewDatabase(db ethdb.Database) Database { + csc, _ := lru.New(codeSizeCacheSize) + return &cachingDB{db: db, codeSizeCache: csc} +} + +type cachingDB struct { + db ethdb.Database + mu sync.Mutex + pastTries []*trie.SecureTrie + codeSizeCache *lru.Cache +} + +func (db *cachingDB) OpenTrie(root common.Hash) (Trie, error) { + db.mu.Lock() + defer db.mu.Unlock() + + for i := len(db.pastTries) - 1; i >= 0; i-- { + if db.pastTries[i].Hash() == root { + return cachedTrie{db.pastTries[i].Copy(), db}, nil + } + } + tr, err := trie.NewSecure(root, db.db, MaxTrieCacheGen) + if err != nil { + return nil, err + } + return cachedTrie{tr, db}, nil +} + +func (db *cachingDB) pushTrie(t *trie.SecureTrie) { + db.mu.Lock() + defer db.mu.Unlock() + + if len(db.pastTries) >= maxPastTries { + copy(db.pastTries, db.pastTries[1:]) + db.pastTries[len(db.pastTries)-1] = t + } else { + db.pastTries = append(db.pastTries, t) + } +} + +func (db *cachingDB) OpenStorageTrie(addrHash, root common.Hash) (Trie, error) { + return trie.NewSecure(root, db.db, 0) +} + +func (db *cachingDB) CopyTrie(t Trie) Trie { + switch t := t.(type) { + case cachedTrie: + return cachedTrie{t.SecureTrie.Copy(), db} + case *trie.SecureTrie: + return t.Copy() + default: + panic(fmt.Errorf("unknown trie type %T", t)) + } +} + +func (db *cachingDB) ContractCode(addrHash, codeHash common.Hash) ([]byte, error) { + code, err := db.db.Get(codeHash[:]) + if err == nil { + db.codeSizeCache.Add(codeHash, len(code)) + } + return code, err +} + +func (db *cachingDB) ContractCodeSize(addrHash, codeHash common.Hash) (int, error) { + if cached, ok := db.codeSizeCache.Get(codeHash); ok { + return cached.(int), nil + } + code, err := db.ContractCode(addrHash, codeHash) + if err == nil { + db.codeSizeCache.Add(codeHash, len(code)) + } + return len(code), err +} + +// cachedTrie inserts its trie into a cachingDB on commit. +type cachedTrie struct { + *trie.SecureTrie + db *cachingDB +} + +func (m cachedTrie) CommitTo(dbw trie.DatabaseWriter) (common.Hash, error) { + root, err := m.SecureTrie.CommitTo(dbw) + if err == nil { + m.db.pushTrie(m.SecureTrie) + } + return root, err +} diff --git a/core/state/dump.go b/core/state/dump.go index ffa1a7283240..46e612850a93 100644 --- a/core/state/dump.go +++ b/core/state/dump.go @@ -41,7 +41,7 @@ type Dump struct { func (self *StateDB) RawDump() Dump { dump := Dump{ - Root: common.Bytes2Hex(self.trie.Root()), + Root: fmt.Sprintf("%x", self.trie.Hash()), Accounts: make(map[string]DumpAccount), } diff --git a/core/state/iterator.go b/core/state/iterator.go index a8a2722ae3ba..6a5c73d3d13c 100644 --- a/core/state/iterator.go +++ b/core/state/iterator.go @@ -19,7 +19,6 @@ package state import ( "bytes" "fmt" - "math/big" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/rlp" @@ -105,16 +104,11 @@ func (it *NodeIterator) step() error { return nil } // Otherwise we've reached an account node, initiate data iteration - var account struct { - Nonce uint64 - Balance *big.Int - Root common.Hash - CodeHash []byte - } + var account Account if err := rlp.Decode(bytes.NewReader(it.stateIt.LeafBlob()), &account); err != nil { return err } - dataTrie, err := trie.New(account.Root, it.state.db) + dataTrie, err := it.state.db.OpenStorageTrie(common.BytesToHash(it.stateIt.LeafKey()), account.Root) if err != nil { return err } @@ -124,7 +118,8 @@ func (it *NodeIterator) step() error { } if !bytes.Equal(account.CodeHash, emptyCodeHash) { it.codeHash = common.BytesToHash(account.CodeHash) - it.code, err = it.state.db.Get(account.CodeHash) + addrHash := common.BytesToHash(it.stateIt.LeafKey()) + it.code, err = it.state.db.ContractCode(addrHash, common.BytesToHash(account.CodeHash)) if err != nil { return fmt.Errorf("code %x: %v", account.CodeHash, err) } diff --git a/core/state/iterator_test.go b/core/state/iterator_test.go index aa9c5b728816..ff66ba7a94e9 100644 --- a/core/state/iterator_test.go +++ b/core/state/iterator_test.go @@ -21,13 +21,12 @@ import ( "testing" "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/ethdb" ) // Tests that the node iterator indeed walks over the entire database contents. func TestNodeIteratorCoverage(t *testing.T) { // Create some arbitrary test state to iterate - db, root, _ := makeTestState() + db, mem, root, _ := makeTestState() state, err := New(root, db) if err != nil { @@ -40,13 +39,14 @@ func TestNodeIteratorCoverage(t *testing.T) { hashes[it.Hash] = struct{}{} } } + // Cross check the hashes and the database itself for hash := range hashes { - if _, err := db.Get(hash.Bytes()); err != nil { + if _, err := mem.Get(hash.Bytes()); err != nil { t.Errorf("failed to retrieve reported node %x: %v", hash, err) } } - for _, key := range db.(*ethdb.MemDatabase).Keys() { + for _, key := range mem.Keys() { if bytes.HasPrefix(key, []byte("secure-key-")) { continue } diff --git a/core/state/managed_state_test.go b/core/state/managed_state_test.go index ea5737a0892e..1cfdd3a890c2 100644 --- a/core/state/managed_state_test.go +++ b/core/state/managed_state_test.go @@ -27,7 +27,7 @@ var addr = common.BytesToAddress([]byte("test")) func create() (*ManagedState, *account) { db, _ := ethdb.NewMemDatabase() - statedb, _ := New(common.Hash{}, db) + statedb, _ := New(common.Hash{}, NewDatabase(db)) ms := ManageState(statedb) ms.StateDB.SetNonce(addr, 100) ms.accounts[addr] = newAccount(ms.StateDB.getStateObject(addr)) diff --git a/core/state/state_object.go b/core/state/state_object.go index dcad9d06815c..b2378c69c828 100644 --- a/core/state/state_object.go +++ b/core/state/state_object.go @@ -62,9 +62,10 @@ func (self Storage) Copy() Storage { // Account values can be accessed and modified through the object. // Finally, call CommitTrie to write the modified storage trie into a database. type stateObject struct { - address common.Address // Ethereum address of this account - data Account - db *StateDB + address common.Address + addrHash common.Hash // hash of ethereum address of the account + data Account + db *StateDB // DB error. // State objects are used by the consensus core and VM which are @@ -74,8 +75,8 @@ type stateObject struct { dbErr error // Write caches. - trie *trie.SecureTrie // storage trie, which becomes non-nil on first access - code Code // contract bytecode, which gets set when code is loaded + trie Trie // storage trie, which becomes non-nil on first access + code Code // contract bytecode, which gets set when code is loaded cachedStorage Storage // Storage entry cache to avoid duplicate reads dirtyStorage Storage // Storage entries that need to be flushed to disk @@ -112,7 +113,15 @@ func newObject(db *StateDB, address common.Address, data Account, onDirty func(a if data.CodeHash == nil { data.CodeHash = emptyCodeHash } - return &stateObject{db: db, address: address, data: data, cachedStorage: make(Storage), dirtyStorage: make(Storage), onDirty: onDirty} + return &stateObject{ + db: db, + address: address, + addrHash: crypto.Keccak256Hash(address[:]), + data: data, + cachedStorage: make(Storage), + dirtyStorage: make(Storage), + onDirty: onDirty, + } } // EncodeRLP implements rlp.Encoder. @@ -148,12 +157,12 @@ func (c *stateObject) touch() { c.touched = true } -func (c *stateObject) getTrie(db trie.Database) *trie.SecureTrie { +func (c *stateObject) getTrie(db Database) Trie { if c.trie == nil { var err error - c.trie, err = trie.NewSecure(c.data.Root, db, 0) + c.trie, err = db.OpenStorageTrie(c.addrHash, c.data.Root) if err != nil { - c.trie, _ = trie.NewSecure(common.Hash{}, db, 0) + c.trie, _ = db.OpenStorageTrie(c.addrHash, common.Hash{}) c.setError(fmt.Errorf("can't create storage trie: %v", err)) } } @@ -161,13 +170,18 @@ func (c *stateObject) getTrie(db trie.Database) *trie.SecureTrie { } // GetState returns a value in account storage. -func (self *stateObject) GetState(db trie.Database, key common.Hash) common.Hash { +func (self *stateObject) GetState(db Database, key common.Hash) common.Hash { value, exists := self.cachedStorage[key] if exists { return value } // Load from DB in case it is missing. - if enc := self.getTrie(db).Get(key[:]); len(enc) > 0 { + enc, err := self.getTrie(db).TryGet(key[:]) + if err != nil { + self.setError(err) + return common.Hash{} + } + if len(enc) > 0 { _, content, _, err := rlp.Split(enc) if err != nil { self.setError(err) @@ -181,7 +195,7 @@ func (self *stateObject) GetState(db trie.Database, key common.Hash) common.Hash } // SetState updates a value in account storage. -func (self *stateObject) SetState(db trie.Database, key, value common.Hash) { +func (self *stateObject) SetState(db Database, key, value common.Hash) { self.db.journal = append(self.db.journal, storageChange{ account: &self.address, key: key, @@ -201,30 +215,30 @@ func (self *stateObject) setState(key, value common.Hash) { } // updateTrie writes cached storage modifications into the object's storage trie. -func (self *stateObject) updateTrie(db trie.Database) *trie.SecureTrie { +func (self *stateObject) updateTrie(db Database) Trie { tr := self.getTrie(db) for key, value := range self.dirtyStorage { delete(self.dirtyStorage, key) if (value == common.Hash{}) { - tr.Delete(key[:]) + self.setError(tr.TryDelete(key[:])) continue } // Encoding []byte cannot fail, ok to ignore the error. v, _ := rlp.EncodeToBytes(bytes.TrimLeft(value[:], "\x00")) - tr.Update(key[:], v) + self.setError(tr.TryUpdate(key[:], v)) } return tr } // UpdateRoot sets the trie root to the current root hash of -func (self *stateObject) updateRoot(db trie.Database) { +func (self *stateObject) updateRoot(db Database) { self.updateTrie(db) self.data.Root = self.trie.Hash() } // CommitTrie the storage trie of the object to dwb. // This updates the trie root. -func (self *stateObject) CommitTrie(db trie.Database, dbw trie.DatabaseWriter) error { +func (self *stateObject) CommitTrie(db Database, dbw trie.DatabaseWriter) error { self.updateTrie(db) if self.dbErr != nil { return self.dbErr @@ -282,9 +296,7 @@ func (c *stateObject) ReturnGas(gas *big.Int) {} func (self *stateObject) deepCopy(db *StateDB, onDirty func(addr common.Address)) *stateObject { stateObject := newObject(db, self.address, self.data, onDirty) if self.trie != nil { - // A shallow copy makes the two tries independent. - cpy := *self.trie - stateObject.trie = &cpy + stateObject.trie = db.db.CopyTrie(self.trie) } stateObject.code = self.code stateObject.dirtyStorage = self.dirtyStorage.Copy() @@ -305,14 +317,14 @@ func (c *stateObject) Address() common.Address { } // Code returns the contract code associated with this object, if any. -func (self *stateObject) Code(db trie.Database) []byte { +func (self *stateObject) Code(db Database) []byte { if self.code != nil { return self.code } if bytes.Equal(self.CodeHash(), emptyCodeHash) { return nil } - code, err := db.Get(self.CodeHash()) + code, err := db.ContractCode(self.addrHash, common.BytesToHash(self.CodeHash())) if err != nil { self.setError(fmt.Errorf("can't load code hash %x: %v", self.CodeHash(), err)) } diff --git a/core/state/state_test.go b/core/state/state_test.go index 3bc63c1486cf..bbae3685bb53 100644 --- a/core/state/state_test.go +++ b/core/state/state_test.go @@ -21,14 +21,14 @@ import ( "math/big" "testing" - checker "gopkg.in/check.v1" - "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/ethdb" + checker "gopkg.in/check.v1" ) type StateSuite struct { + db *ethdb.MemDatabase state *StateDB } @@ -48,7 +48,7 @@ func (s *StateSuite) TestDump(c *checker.C) { // write some of them to the trie s.state.updateStateObject(obj1) s.state.updateStateObject(obj2) - s.state.Commit(false) + s.state.CommitTo(s.db, false) // check that dump contains the state objects that are in trie got := string(s.state.Dump()) @@ -87,23 +87,20 @@ func (s *StateSuite) TestDump(c *checker.C) { } func (s *StateSuite) SetUpTest(c *checker.C) { - db, _ := ethdb.NewMemDatabase() - s.state, _ = New(common.Hash{}, db) + s.db, _ = ethdb.NewMemDatabase() + s.state, _ = New(common.Hash{}, NewDatabase(s.db)) } -func TestNull(t *testing.T) { - db, _ := ethdb.NewMemDatabase() - state, _ := New(common.Hash{}, db) - +func (s *StateSuite) TestNull(c *checker.C) { address := common.HexToAddress("0x823140710bf13990e4500136726d8b55") - state.CreateAccount(address) + s.state.CreateAccount(address) //value := common.FromHex("0x823140710bf13990e4500136726d8b55") var value common.Hash - state.SetState(address, common.Hash{}, value) - state.Commit(false) - value = state.GetState(address, common.Hash{}) + s.state.SetState(address, common.Hash{}, value) + s.state.CommitTo(s.db, false) + value = s.state.GetState(address, common.Hash{}) if !common.EmptyHash(value) { - t.Errorf("expected empty hash. got %x", value) + c.Errorf("expected empty hash. got %x", value) } } @@ -129,17 +126,15 @@ func (s *StateSuite) TestSnapshot(c *checker.C) { c.Assert(data1, checker.DeepEquals, res) } -func TestSnapshotEmpty(t *testing.T) { - db, _ := ethdb.NewMemDatabase() - state, _ := New(common.Hash{}, db) - state.RevertToSnapshot(state.Snapshot()) +func (s *StateSuite) TestSnapshotEmpty(c *checker.C) { + s.state.RevertToSnapshot(s.state.Snapshot()) } // use testing instead of checker because checker does not support // printing/logging in tests (-check.vv does not work) func TestSnapshot2(t *testing.T) { db, _ := ethdb.NewMemDatabase() - state, _ := New(common.Hash{}, db) + state, _ := New(common.Hash{}, NewDatabase(db)) stateobjaddr0 := toAddr([]byte("so0")) stateobjaddr1 := toAddr([]byte("so1")) @@ -160,7 +155,7 @@ func TestSnapshot2(t *testing.T) { so0.deleted = false state.setStateObject(so0) - root, _ := state.Commit(false) + root, _ := state.CommitTo(db, false) state.Reset(root) // and one with deleted == true @@ -182,8 +177,8 @@ func TestSnapshot2(t *testing.T) { so0Restored := state.getStateObject(stateobjaddr0) // Update lazily-loaded values before comparing. - so0Restored.GetState(db, storageaddr) - so0Restored.Code(db) + so0Restored.GetState(state.db, storageaddr) + so0Restored.Code(state.db) // non-deleted is equal (restored) compareStateObjects(so0Restored, so0, t) diff --git a/core/state/statedb.go b/core/state/statedb.go index 05869a0c8a54..694374f8226d 100644 --- a/core/state/statedb.go +++ b/core/state/statedb.go @@ -26,23 +26,9 @@ import ( "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/crypto" - "github.com/ethereum/go-ethereum/ethdb" "github.com/ethereum/go-ethereum/log" "github.com/ethereum/go-ethereum/rlp" "github.com/ethereum/go-ethereum/trie" - lru "github.com/hashicorp/golang-lru" -) - -// Trie cache generation limit after which to evic trie nodes from memory. -var MaxTrieCacheGen = uint16(120) - -const ( - // Number of past tries to keep. This value is chosen such that - // reasonable chain reorg depths will hit an existing trie. - maxPastTries = 12 - - // Number of codehash->size associations to keep. - codeSizeCacheSize = 100000 ) type revision struct { @@ -56,16 +42,21 @@ type revision struct { // * Contracts // * Accounts type StateDB struct { - db ethdb.Database - trie *trie.SecureTrie - pastTries []*trie.SecureTrie - codeSizeCache *lru.Cache + db Database + trie Trie // This map holds 'live' objects, which will get modified while processing a state transition. stateObjects map[common.Address]*stateObject stateObjectsDirty map[common.Address]struct{} stateObjectsDestructed map[common.Address]struct{} + // DB error. + // State objects are used by the consensus core and VM which are + // unable to deal with database-level errors. Any error that occurs + // during a database read is memoized here and will eventually be returned + // by StateDB.Commit. + dbErr error + // The refund counter, also used by state transitioning. refund *big.Int @@ -86,16 +77,14 @@ type StateDB struct { } // Create a new state from a given trie -func New(root common.Hash, db ethdb.Database) (*StateDB, error) { - tr, err := trie.NewSecure(root, db, MaxTrieCacheGen) +func New(root common.Hash, db Database) (*StateDB, error) { + tr, err := db.OpenTrie(root) if err != nil { return nil, err } - csc, _ := lru.New(codeSizeCacheSize) return &StateDB{ db: db, trie: tr, - codeSizeCache: csc, stateObjects: make(map[common.Address]*stateObject), stateObjectsDirty: make(map[common.Address]struct{}), stateObjectsDestructed: make(map[common.Address]struct{}), @@ -105,36 +94,21 @@ func New(root common.Hash, db ethdb.Database) (*StateDB, error) { }, nil } -// New creates a new statedb by reusing any journalled tries to avoid costly -// disk io. -func (self *StateDB) New(root common.Hash) (*StateDB, error) { - self.lock.Lock() - defer self.lock.Unlock() - - tr, err := self.openTrie(root) - if err != nil { - return nil, err +// setError remembers the first non-nil error it is called with. +func (self *StateDB) setError(err error) { + if self.dbErr == nil { + self.dbErr = err } - return &StateDB{ - db: self.db, - trie: tr, - codeSizeCache: self.codeSizeCache, - stateObjects: make(map[common.Address]*stateObject), - stateObjectsDirty: make(map[common.Address]struct{}), - stateObjectsDestructed: make(map[common.Address]struct{}), - refund: new(big.Int), - logs: make(map[common.Hash][]*types.Log), - preimages: make(map[common.Hash][]byte), - }, nil +} + +func (self *StateDB) Error() error { + return self.dbErr } // Reset clears out all emphemeral state objects from the state db, but keeps // the underlying state trie to avoid reloading data for the next operations. func (self *StateDB) Reset(root common.Hash) error { - self.lock.Lock() - defer self.lock.Unlock() - - tr, err := self.openTrie(root) + tr, err := self.db.OpenTrie(root) if err != nil { return err } @@ -149,34 +123,9 @@ func (self *StateDB) Reset(root common.Hash) error { self.logSize = 0 self.preimages = make(map[common.Hash][]byte) self.clearJournalAndRefund() - return nil } -// openTrie creates a trie. It uses an existing trie if one is available -// from the journal if available. -func (self *StateDB) openTrie(root common.Hash) (*trie.SecureTrie, error) { - for i := len(self.pastTries) - 1; i >= 0; i-- { - if self.pastTries[i].Hash() == root { - tr := *self.pastTries[i] - return &tr, nil - } - } - return trie.NewSecure(root, self.db, MaxTrieCacheGen) -} - -func (self *StateDB) pushTrie(t *trie.SecureTrie) { - self.lock.Lock() - defer self.lock.Unlock() - - if len(self.pastTries) >= maxPastTries { - copy(self.pastTries, self.pastTries[1:]) - self.pastTries[len(self.pastTries)-1] = t - } else { - self.pastTries = append(self.pastTries, t) - } -} - func (self *StateDB) AddLog(log *types.Log) { self.journal = append(self.journal, addLogChange{txhash: self.thash}) @@ -254,10 +203,7 @@ func (self *StateDB) GetNonce(addr common.Address) uint64 { func (self *StateDB) GetCode(addr common.Address) []byte { stateObject := self.getStateObject(addr) if stateObject != nil { - code := stateObject.Code(self.db) - key := common.BytesToHash(stateObject.CodeHash()) - self.codeSizeCache.Add(key, len(code)) - return code + return stateObject.Code(self.db) } return nil } @@ -267,13 +213,12 @@ func (self *StateDB) GetCodeSize(addr common.Address) int { if stateObject == nil { return 0 } - key := common.BytesToHash(stateObject.CodeHash()) - if cached, ok := self.codeSizeCache.Get(key); ok { - return cached.(int) + if stateObject.code != nil { + return len(stateObject.code) } - size := len(stateObject.Code(self.db)) - if stateObject.dbErr == nil { - self.codeSizeCache.Add(key, size) + size, err := self.db.ContractCodeSize(stateObject.addrHash, common.BytesToHash(stateObject.CodeHash())) + if err != nil { + self.setError(err) } return size } @@ -296,7 +241,7 @@ func (self *StateDB) GetState(a common.Address, b common.Hash) common.Hash { // StorageTrie returns the storage trie of an account. // The return value is a copy and is nil for non-existent accounts. -func (self *StateDB) StorageTrie(a common.Address) *trie.SecureTrie { +func (self *StateDB) StorageTrie(a common.Address) Trie { stateObject := self.getStateObject(a) if stateObject == nil { return nil @@ -394,14 +339,14 @@ func (self *StateDB) updateStateObject(stateObject *stateObject) { if err != nil { panic(fmt.Errorf("can't encode object at %x: %v", addr[:], err)) } - self.trie.Update(addr[:], data) + self.setError(self.trie.TryUpdate(addr[:], data)) } // deleteStateObject removes the given object from the state trie. func (self *StateDB) deleteStateObject(stateObject *stateObject) { stateObject.deleted = true addr := stateObject.Address() - self.trie.Delete(addr[:]) + self.setError(self.trie.TryDelete(addr[:])) } // Retrieve a state object given my the address. Returns nil if not found. @@ -415,8 +360,9 @@ func (self *StateDB) getStateObject(addr common.Address) (stateObject *stateObje } // Load the object from the database. - enc := self.trie.Get(addr[:]) + enc, err := self.trie.TryGet(addr[:]) if len(enc) == 0 { + self.setError(err) return nil } var data Account @@ -512,8 +458,6 @@ func (self *StateDB) Copy() *StateDB { state := &StateDB{ db: self.db, trie: self.trie, - pastTries: self.pastTries, - codeSizeCache: self.codeSizeCache, stateObjects: make(map[common.Address]*stateObject, len(self.stateObjectsDirty)), stateObjectsDirty: make(map[common.Address]struct{}, len(self.stateObjectsDirty)), stateObjectsDestructed: make(map[common.Address]struct{}, len(self.stateObjectsDestructed)), @@ -636,23 +580,6 @@ func (s *StateDB) DeleteSuicides() { } } -// Commit commits all state changes to the database. -func (s *StateDB) Commit(deleteEmptyObjects bool) (root common.Hash, err error) { - root, batch := s.CommitBatch(deleteEmptyObjects) - return root, batch.Write() -} - -// CommitBatch commits all state changes to a write batch but does not -// execute the batch. It is used to validate state changes against -// the root hash stored in a block. -func (s *StateDB) CommitBatch(deleteEmptyObjects bool) (root common.Hash, batch ethdb.Batch) { - batch = s.db.NewBatch() - root, _ = s.CommitTo(batch, deleteEmptyObjects) - - log.Debug("Trie cache stats after commit", "misses", trie.CacheMisses(), "unloads", trie.CacheUnloads()) - return root, batch -} - func (s *StateDB) clearJournalAndRefund() { s.journal = nil s.validRevisions = s.validRevisions[:0] @@ -690,8 +617,6 @@ func (s *StateDB) CommitTo(dbw trie.DatabaseWriter, deleteEmptyObjects bool) (ro } // Write trie changes. root, err = s.trie.CommitTo(dbw) - if err == nil { - s.pushTrie(s.trie) - } + log.Debug("Trie cache stats after commit", "misses", trie.CacheMisses(), "unloads", trie.CacheUnloads()) return root, err } diff --git a/core/state/statedb_test.go b/core/state/statedb_test.go index 72b638f970f0..b2bd18e65e38 100644 --- a/core/state/statedb_test.go +++ b/core/state/statedb_test.go @@ -28,6 +28,8 @@ import ( "testing" "testing/quick" + check "gopkg.in/check.v1" + "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/ethdb" @@ -38,7 +40,7 @@ import ( func TestUpdateLeaks(t *testing.T) { // Create an empty state database db, _ := ethdb.NewMemDatabase() - state, _ := New(common.Hash{}, db) + state, _ := New(common.Hash{}, NewDatabase(db)) // Update it with some accounts for i := byte(0); i < 255; i++ { @@ -66,8 +68,8 @@ func TestIntermediateLeaks(t *testing.T) { // Create two state databases, one transitioning to the final state, the other final from the beginning transDb, _ := ethdb.NewMemDatabase() finalDb, _ := ethdb.NewMemDatabase() - transState, _ := New(common.Hash{}, transDb) - finalState, _ := New(common.Hash{}, finalDb) + transState, _ := New(common.Hash{}, NewDatabase(transDb)) + finalState, _ := New(common.Hash{}, NewDatabase(finalDb)) modify := func(state *StateDB, addr common.Address, i, tweak byte) { state.SetBalance(addr, big.NewInt(int64(11*i)+int64(tweak))) @@ -95,10 +97,10 @@ func TestIntermediateLeaks(t *testing.T) { } // Commit and cross check the databases. - if _, err := transState.Commit(false); err != nil { + if _, err := transState.CommitTo(transDb, false); err != nil { t.Fatalf("failed to commit transition state: %v", err) } - if _, err := finalState.Commit(false); err != nil { + if _, err := finalState.CommitTo(finalDb, false); err != nil { t.Fatalf("failed to commit final state: %v", err) } for _, key := range finalDb.Keys() { @@ -282,7 +284,7 @@ func (test *snapshotTest) run() bool { // Run all actions and create snapshots. var ( db, _ = ethdb.NewMemDatabase() - state, _ = New(common.Hash{}, db) + state, _ = New(common.Hash{}, NewDatabase(db)) snapshotRevs = make([]int, len(test.snapshots)) sindex = 0 ) @@ -297,7 +299,7 @@ func (test *snapshotTest) run() bool { // Revert all snapshots in reverse order. Each revert must yield a state // that is equivalent to fresh state with all actions up the snapshot applied. for sindex--; sindex >= 0; sindex-- { - checkstate, _ := New(common.Hash{}, db) + checkstate, _ := New(common.Hash{}, NewDatabase(db)) for _, action := range test.actions[:test.snapshots[sindex]] { action.fn(action, checkstate) } @@ -354,21 +356,19 @@ func (test *snapshotTest) checkEqual(state, checkstate *StateDB) error { return nil } -func TestTouchDelete(t *testing.T) { - db, _ := ethdb.NewMemDatabase() - state, _ := New(common.Hash{}, db) - state.GetOrNewStateObject(common.Address{}) - root, _ := state.Commit(false) - state.Reset(root) +func (s *StateSuite) TestTouchDelete(c *check.C) { + s.state.GetOrNewStateObject(common.Address{}) + root, _ := s.state.CommitTo(s.db, false) + s.state.Reset(root) - snapshot := state.Snapshot() - state.AddBalance(common.Address{}, new(big.Int)) - if len(state.stateObjectsDirty) != 1 { - t.Fatal("expected one dirty state object") + snapshot := s.state.Snapshot() + s.state.AddBalance(common.Address{}, new(big.Int)) + if len(s.state.stateObjectsDirty) != 1 { + c.Fatal("expected one dirty state object") } - state.RevertToSnapshot(snapshot) - if len(state.stateObjectsDirty) != 0 { - t.Fatal("expected no dirty state object") + s.state.RevertToSnapshot(snapshot) + if len(s.state.stateObjectsDirty) != 0 { + c.Fatal("expected no dirty state object") } } diff --git a/core/state/sync_test.go b/core/state/sync_test.go index 108ebb3208ee..06c572ea62bd 100644 --- a/core/state/sync_test.go +++ b/core/state/sync_test.go @@ -36,9 +36,10 @@ type testAccount struct { } // makeTestState create a sample test state to test node-wise reconstruction. -func makeTestState() (ethdb.Database, common.Hash, []*testAccount) { +func makeTestState() (Database, *ethdb.MemDatabase, common.Hash, []*testAccount) { // Create an empty state - db, _ := ethdb.NewMemDatabase() + mem, _ := ethdb.NewMemDatabase() + db := NewDatabase(mem) state, _ := New(common.Hash{}, db) // Fill it with some arbitrary data @@ -60,17 +61,17 @@ func makeTestState() (ethdb.Database, common.Hash, []*testAccount) { state.updateStateObject(obj) accounts = append(accounts, acc) } - root, _ := state.Commit(false) + root, _ := state.CommitTo(mem, false) // Return the generated state - return db, root, accounts + return db, mem, root, accounts } // checkStateAccounts cross references a reconstructed state with an expected // account array. func checkStateAccounts(t *testing.T, db ethdb.Database, root common.Hash, accounts []*testAccount) { // Check root availability and state contents - state, err := New(root, db) + state, err := New(root, NewDatabase(db)) if err != nil { t.Fatalf("failed to create state trie at %x: %v", root, err) } @@ -90,13 +91,28 @@ func checkStateAccounts(t *testing.T, db ethdb.Database, root common.Hash, accou } } -// checkStateConsistency checks that all nodes in a state trie are indeed present. +// checkTrieConsistency checks that all nodes in a (sub-)trie are indeed present. +func checkTrieConsistency(db ethdb.Database, root common.Hash) error { + if v, _ := db.Get(root[:]); v == nil { + return nil // Consider a non existent state consistent. + } + trie, err := trie.New(root, db) + if err != nil { + return err + } + it := trie.NodeIterator(nil) + for it.Next(true) { + } + return it.Error() +} + +// checkStateConsistency checks that all data of a state root is present. func checkStateConsistency(db ethdb.Database, root common.Hash) error { // Create and iterate a state trie rooted in a sub-node if _, err := db.Get(root.Bytes()); err != nil { - return nil // Consider a non existent state consistent + return nil // Consider a non existent state consistent. } - state, err := New(root, db) + state, err := New(root, NewDatabase(db)) if err != nil { return err } @@ -122,7 +138,7 @@ func TestIterativeStateSyncBatched(t *testing.T) { testIterativeStateSync(t, func testIterativeStateSync(t *testing.T, batch int) { // Create a random state to copy - srcDb, srcRoot, srcAccounts := makeTestState() + _, srcMem, srcRoot, srcAccounts := makeTestState() // Create a destination state and sync with the scheduler dstDb, _ := ethdb.NewMemDatabase() @@ -132,7 +148,7 @@ func testIterativeStateSync(t *testing.T, batch int) { for len(queue) > 0 { results := make([]trie.SyncResult, len(queue)) for i, hash := range queue { - data, err := srcDb.Get(hash.Bytes()) + data, err := srcMem.Get(hash.Bytes()) if err != nil { t.Fatalf("failed to retrieve node data for %x: %v", hash, err) } @@ -154,7 +170,7 @@ func testIterativeStateSync(t *testing.T, batch int) { // partial results are returned, and the others sent only later. func TestIterativeDelayedStateSync(t *testing.T) { // Create a random state to copy - srcDb, srcRoot, srcAccounts := makeTestState() + _, srcMem, srcRoot, srcAccounts := makeTestState() // Create a destination state and sync with the scheduler dstDb, _ := ethdb.NewMemDatabase() @@ -165,7 +181,7 @@ func TestIterativeDelayedStateSync(t *testing.T) { // Sync only half of the scheduled nodes results := make([]trie.SyncResult, len(queue)/2+1) for i, hash := range queue[:len(results)] { - data, err := srcDb.Get(hash.Bytes()) + data, err := srcMem.Get(hash.Bytes()) if err != nil { t.Fatalf("failed to retrieve node data for %x: %v", hash, err) } @@ -191,7 +207,7 @@ func TestIterativeRandomStateSyncBatched(t *testing.T) { testIterativeRandomS func testIterativeRandomStateSync(t *testing.T, batch int) { // Create a random state to copy - srcDb, srcRoot, srcAccounts := makeTestState() + _, srcMem, srcRoot, srcAccounts := makeTestState() // Create a destination state and sync with the scheduler dstDb, _ := ethdb.NewMemDatabase() @@ -205,7 +221,7 @@ func testIterativeRandomStateSync(t *testing.T, batch int) { // Fetch all the queued nodes in a random order results := make([]trie.SyncResult, 0, len(queue)) for hash := range queue { - data, err := srcDb.Get(hash.Bytes()) + data, err := srcMem.Get(hash.Bytes()) if err != nil { t.Fatalf("failed to retrieve node data for %x: %v", hash, err) } @@ -231,7 +247,7 @@ func testIterativeRandomStateSync(t *testing.T, batch int) { // partial results are returned (Even those randomly), others sent only later. func TestIterativeRandomDelayedStateSync(t *testing.T) { // Create a random state to copy - srcDb, srcRoot, srcAccounts := makeTestState() + _, srcMem, srcRoot, srcAccounts := makeTestState() // Create a destination state and sync with the scheduler dstDb, _ := ethdb.NewMemDatabase() @@ -247,7 +263,7 @@ func TestIterativeRandomDelayedStateSync(t *testing.T) { for hash := range queue { delete(queue, hash) - data, err := srcDb.Get(hash.Bytes()) + data, err := srcMem.Get(hash.Bytes()) if err != nil { t.Fatalf("failed to retrieve node data for %x: %v", hash, err) } @@ -276,7 +292,9 @@ func TestIterativeRandomDelayedStateSync(t *testing.T) { // the database. func TestIncompleteStateSync(t *testing.T) { // Create a random state to copy - srcDb, srcRoot, srcAccounts := makeTestState() + _, srcMem, srcRoot, srcAccounts := makeTestState() + + checkTrieConsistency(srcMem, srcRoot) // Create a destination state and sync with the scheduler dstDb, _ := ethdb.NewMemDatabase() @@ -288,7 +306,7 @@ func TestIncompleteStateSync(t *testing.T) { // Fetch a batch of state nodes results := make([]trie.SyncResult, len(queue)) for i, hash := range queue { - data, err := srcDb.Get(hash.Bytes()) + data, err := srcMem.Get(hash.Bytes()) if err != nil { t.Fatalf("failed to retrieve node data for %x: %v", hash, err) } @@ -304,21 +322,18 @@ func TestIncompleteStateSync(t *testing.T) { for _, result := range results { added = append(added, result.Hash) } - // Check that all known sub-tries in the synced state is complete - for _, root := range added { - // Skim through the accounts and make sure the root hash is not a code node - codeHash := false + // Check that all known sub-tries added so far are complete or missing entirely. + checkSubtries: + for _, hash := range added { for _, acc := range srcAccounts { - if root == crypto.Keccak256Hash(acc.code) { - codeHash = true - break + if hash == crypto.Keccak256Hash(acc.code) { + continue checkSubtries // skip trie check of code nodes. } } - // If the root is a real trie node, check consistency - if !codeHash { - if err := checkStateConsistency(dstDb, root); err != nil { - t.Fatalf("state inconsistent: %v", err) - } + // Can't use checkStateConsistency here because subtrie keys may have odd + // length and crash in LeafKey. + if err := checkTrieConsistency(dstDb, hash); err != nil { + t.Fatalf("state inconsistent: %v", err) } } // Fetch the next batch to retrieve diff --git a/core/tx_pool_test.go b/core/tx_pool_test.go index 4e28522e9f81..4903bc3ca4c5 100644 --- a/core/tx_pool_test.go +++ b/core/tx_pool_test.go @@ -44,7 +44,7 @@ func pricedTransaction(nonce uint64, gaslimit, gasprice *big.Int, key *ecdsa.Pri func setupTxPool() (*TxPool, *ecdsa.PrivateKey) { db, _ := ethdb.NewMemDatabase() - statedb, _ := state.New(common.Hash{}, db) + statedb, _ := state.New(common.Hash{}, state.NewDatabase(db)) key, _ := crypto.GenerateKey() newPool := NewTxPool(DefaultTxPoolConfig, params.TestChainConfig, new(event.TypeMux), func() (*state.StateDB, error) { return statedb, nil }, func() *big.Int { return big.NewInt(1000000) }) @@ -95,7 +95,7 @@ func TestStateChangeDuringPoolReset(t *testing.T) { key, _ = crypto.GenerateKey() address = crypto.PubkeyToAddress(key.PublicKey) mux = new(event.TypeMux) - statedb, _ = state.New(common.Hash{}, db) + statedb, _ = state.New(common.Hash{}, state.NewDatabase(db)) trigger = false ) @@ -114,7 +114,7 @@ func TestStateChangeDuringPoolReset(t *testing.T) { // a state change between those fetches. stdb := statedb if trigger { - statedb, _ = state.New(common.Hash{}, db) + statedb, _ = state.New(common.Hash{}, state.NewDatabase(db)) // simulate that the new head block included tx0 and tx1 statedb.SetNonce(address, 2) statedb.SetBalance(address, new(big.Int).SetUint64(params.Ether)) @@ -292,7 +292,7 @@ func TestTransactionChainFork(t *testing.T) { addr := crypto.PubkeyToAddress(key.PublicKey) resetState := func() { db, _ := ethdb.NewMemDatabase() - statedb, _ := state.New(common.Hash{}, db) + statedb, _ := state.New(common.Hash{}, state.NewDatabase(db)) pool.currentState = func() (*state.StateDB, error) { return statedb, nil } currentState, _ := pool.currentState() currentState.AddBalance(addr, big.NewInt(100000000000000)) @@ -318,7 +318,7 @@ func TestTransactionDoubleNonce(t *testing.T) { addr := crypto.PubkeyToAddress(key.PublicKey) resetState := func() { db, _ := ethdb.NewMemDatabase() - statedb, _ := state.New(common.Hash{}, db) + statedb, _ := state.New(common.Hash{}, state.NewDatabase(db)) pool.currentState = func() (*state.StateDB, error) { return statedb, nil } currentState, _ := pool.currentState() currentState.AddBalance(addr, big.NewInt(100000000000000)) @@ -628,7 +628,7 @@ func TestTransactionQueueGlobalLimiting(t *testing.T) { // Create the pool to test the limit enforcement with db, _ := ethdb.NewMemDatabase() - statedb, _ := state.New(common.Hash{}, db) + statedb, _ := state.New(common.Hash{}, state.NewDatabase(db)) pool := NewTxPool(DefaultTxPoolConfig, params.TestChainConfig, new(event.TypeMux), func() (*state.StateDB, error) { return statedb, nil }, func() *big.Int { return big.NewInt(1000000) }) pool.resetState() @@ -783,7 +783,7 @@ func TestTransactionPendingGlobalLimiting(t *testing.T) { // Create the pool to test the limit enforcement with db, _ := ethdb.NewMemDatabase() - statedb, _ := state.New(common.Hash{}, db) + statedb, _ := state.New(common.Hash{}, state.NewDatabase(db)) pool := NewTxPool(DefaultTxPoolConfig, params.TestChainConfig, new(event.TypeMux), func() (*state.StateDB, error) { return statedb, nil }, func() *big.Int { return big.NewInt(1000000) }) pool.resetState() @@ -835,7 +835,7 @@ func TestTransactionCapClearsFromAll(t *testing.T) { // Create the pool to test the limit enforcement with db, _ := ethdb.NewMemDatabase() - statedb, _ := state.New(common.Hash{}, db) + statedb, _ := state.New(common.Hash{}, state.NewDatabase(db)) pool := NewTxPool(DefaultTxPoolConfig, params.TestChainConfig, new(event.TypeMux), func() (*state.StateDB, error) { return statedb, nil }, func() *big.Int { return big.NewInt(1000000) }) pool.resetState() @@ -868,7 +868,7 @@ func TestTransactionPendingMinimumAllowance(t *testing.T) { // Create the pool to test the limit enforcement with db, _ := ethdb.NewMemDatabase() - statedb, _ := state.New(common.Hash{}, db) + statedb, _ := state.New(common.Hash{}, state.NewDatabase(db)) pool := NewTxPool(DefaultTxPoolConfig, params.TestChainConfig, new(event.TypeMux), func() (*state.StateDB, error) { return statedb, nil }, func() *big.Int { return big.NewInt(1000000) }) pool.resetState() @@ -913,7 +913,7 @@ func TestTransactionPendingMinimumAllowance(t *testing.T) { func TestTransactionPoolRepricing(t *testing.T) { // Create the pool to test the pricing enforcement with db, _ := ethdb.NewMemDatabase() - statedb, _ := state.New(common.Hash{}, db) + statedb, _ := state.New(common.Hash{}, state.NewDatabase(db)) pool := NewTxPool(DefaultTxPoolConfig, params.TestChainConfig, new(event.TypeMux), func() (*state.StateDB, error) { return statedb, nil }, func() *big.Int { return big.NewInt(1000000) }) pool.resetState() @@ -1006,7 +1006,7 @@ func TestTransactionPoolUnderpricing(t *testing.T) { // Create the pool to test the pricing enforcement with db, _ := ethdb.NewMemDatabase() - statedb, _ := state.New(common.Hash{}, db) + statedb, _ := state.New(common.Hash{}, state.NewDatabase(db)) pool := NewTxPool(DefaultTxPoolConfig, params.TestChainConfig, new(event.TypeMux), func() (*state.StateDB, error) { return statedb, nil }, func() *big.Int { return big.NewInt(1000000) }) pool.resetState() @@ -1091,7 +1091,7 @@ func TestTransactionPoolUnderpricing(t *testing.T) { func TestTransactionReplacement(t *testing.T) { // Create the pool to test the pricing enforcement with db, _ := ethdb.NewMemDatabase() - statedb, _ := state.New(common.Hash{}, db) + statedb, _ := state.New(common.Hash{}, state.NewDatabase(db)) pool := NewTxPool(DefaultTxPoolConfig, params.TestChainConfig, new(event.TypeMux), func() (*state.StateDB, error) { return statedb, nil }, func() *big.Int { return big.NewInt(1000000) }) pool.resetState() diff --git a/core/vm/runtime/runtime.go b/core/vm/runtime/runtime.go index aa386a995ee2..44cde4f70a93 100644 --- a/core/vm/runtime/runtime.go +++ b/core/vm/runtime/runtime.go @@ -102,7 +102,7 @@ func Execute(code, input []byte, cfg *Config) ([]byte, *state.StateDB, error) { if cfg.State == nil { db, _ := ethdb.NewMemDatabase() - cfg.State, _ = state.New(common.Hash{}, db) + cfg.State, _ = state.New(common.Hash{}, state.NewDatabase(db)) } var ( address = common.StringToAddress("contract") @@ -133,7 +133,7 @@ func Create(input []byte, cfg *Config) ([]byte, common.Address, uint64, error) { if cfg.State == nil { db, _ := ethdb.NewMemDatabase() - cfg.State, _ = state.New(common.Hash{}, db) + cfg.State, _ = state.New(common.Hash{}, state.NewDatabase(db)) } var ( vmenv = NewEnv(cfg, cfg.State) diff --git a/core/vm/runtime/runtime_test.go b/core/vm/runtime/runtime_test.go index 7f40770d21f9..2c4dc50265c6 100644 --- a/core/vm/runtime/runtime_test.go +++ b/core/vm/runtime/runtime_test.go @@ -95,7 +95,7 @@ func TestExecute(t *testing.T) { func TestCall(t *testing.T) { db, _ := ethdb.NewMemDatabase() - state, _ := state.New(common.Hash{}, db) + state, _ := state.New(common.Hash{}, state.NewDatabase(db)) address := common.HexToAddress("0x0a") state.SetCode(address, []byte{ byte(vm.PUSH1), 10, diff --git a/eth/api.go b/eth/api.go index 81570988c6d1..0d90759b6c86 100644 --- a/eth/api.go +++ b/eth/api.go @@ -637,7 +637,7 @@ func (api *PrivateDebugAPI) StorageRangeAt(ctx context.Context, blockHash common return storageRangeAt(st, keyStart, maxResult), nil } -func storageRangeAt(st *trie.SecureTrie, start []byte, maxResult int) StorageRangeResult { +func storageRangeAt(st state.Trie, start []byte, maxResult int) StorageRangeResult { it := trie.NewIterator(st.NodeIterator(start)) result := StorageRangeResult{Storage: storageMap{}} for i := 0; i < maxResult && it.Next(); i++ { diff --git a/eth/api_backend.go b/eth/api_backend.go index fe108d272001..166b5084d3cb 100644 --- a/eth/api_backend.go +++ b/eth/api_backend.go @@ -31,7 +31,6 @@ import ( "github.com/ethereum/go-ethereum/eth/gasprice" "github.com/ethereum/go-ethereum/ethdb" "github.com/ethereum/go-ethereum/event" - "github.com/ethereum/go-ethereum/internal/ethapi" "github.com/ethereum/go-ethereum/params" "github.com/ethereum/go-ethereum/rpc" ) @@ -81,11 +80,11 @@ func (b *EthApiBackend) BlockByNumber(ctx context.Context, blockNr rpc.BlockNumb return b.eth.blockchain.GetBlockByNumber(uint64(blockNr)), nil } -func (b *EthApiBackend) StateAndHeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (ethapi.State, *types.Header, error) { +func (b *EthApiBackend) StateAndHeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*state.StateDB, *types.Header, error) { // Pending state is only known by the miner if blockNr == rpc.PendingBlockNumber { block, state := b.eth.miner.Pending() - return EthApiState{state}, block.Header(), nil + return state, block.Header(), nil } // Otherwise resolve the block number and return its state header, err := b.HeaderByNumber(ctx, blockNr) @@ -93,7 +92,7 @@ func (b *EthApiBackend) StateAndHeaderByNumber(ctx context.Context, blockNr rpc. return nil, nil, err } stateDb, err := b.eth.BlockChain().StateAt(header.Root) - return EthApiState{stateDb}, header, err + return stateDb, header, err } func (b *EthApiBackend) GetBlock(ctx context.Context, blockHash common.Hash) (*types.Block, error) { @@ -108,14 +107,12 @@ func (b *EthApiBackend) GetTd(blockHash common.Hash) *big.Int { return b.eth.blockchain.GetTdByHash(blockHash) } -func (b *EthApiBackend) GetEVM(ctx context.Context, msg core.Message, state ethapi.State, header *types.Header, vmCfg vm.Config) (*vm.EVM, func() error, error) { - statedb := state.(EthApiState).state - from := statedb.GetOrNewStateObject(msg.From()) - from.SetBalance(math.MaxBig256) +func (b *EthApiBackend) GetEVM(ctx context.Context, msg core.Message, state *state.StateDB, header *types.Header, vmCfg vm.Config) (*vm.EVM, func() error, error) { + state.SetBalance(msg.From(), math.MaxBig256) vmError := func() error { return nil } context := core.NewEVMContext(msg, header, b.eth.BlockChain(), nil) - return vm.NewEVM(context, statedb, b.eth.chainConfig, vmCfg), vmError, nil + return vm.NewEVM(context, state, b.eth.chainConfig, vmCfg), vmError, nil } func (b *EthApiBackend) SendTx(ctx context.Context, signedTx *types.Transaction) error { @@ -200,23 +197,3 @@ func (b *EthApiBackend) EventMux() *event.TypeMux { func (b *EthApiBackend) AccountManager() *accounts.Manager { return b.eth.AccountManager() } - -type EthApiState struct { - state *state.StateDB -} - -func (s EthApiState) GetBalance(ctx context.Context, addr common.Address) (*big.Int, error) { - return s.state.GetBalance(addr), nil -} - -func (s EthApiState) GetCode(ctx context.Context, addr common.Address) ([]byte, error) { - return s.state.GetCode(addr), nil -} - -func (s EthApiState) GetState(ctx context.Context, a common.Address, b common.Hash) (common.Hash, error) { - return s.state.GetState(a, b), nil -} - -func (s EthApiState) GetNonce(ctx context.Context, addr common.Address) (uint64, error) { - return s.state.GetNonce(addr), nil -} diff --git a/eth/api_test.go b/eth/api_test.go index f8d2e9c76496..49ce386886c0 100644 --- a/eth/api_test.go +++ b/eth/api_test.go @@ -32,7 +32,7 @@ func TestStorageRangeAt(t *testing.T) { // Create a state where account 0x010000... has a few storage entries. var ( db, _ = ethdb.NewMemDatabase() - state, _ = state.New(common.Hash{}, db) + state, _ = state.New(common.Hash{}, state.NewDatabase(db)) addr = common.Address{0x01} keys = []common.Hash{ // hashes of Keys of storage common.HexToHash("340dd630ad21bf010b4e676dbfa9ba9a02175262d1fa356232cfde6cb5b47ef2"), diff --git a/eth/bind.go b/eth/bind.go index e5abd861781b..0385db1f9fbe 100644 --- a/eth/bind.go +++ b/eth/bind.go @@ -54,14 +54,12 @@ func NewContractBackend(apiBackend ethapi.Backend) *ContractBackend { // CodeAt retrieves any code associated with the contract from the local API. func (b *ContractBackend) CodeAt(ctx context.Context, contract common.Address, blockNum *big.Int) ([]byte, error) { - out, err := b.bcapi.GetCode(ctx, contract, toBlockNumber(blockNum)) - return common.FromHex(out), err + return b.bcapi.GetCode(ctx, contract, toBlockNumber(blockNum)) } // CodeAt retrieves any code associated with the contract from the local API. func (b *ContractBackend) PendingCodeAt(ctx context.Context, contract common.Address) ([]byte, error) { - out, err := b.bcapi.GetCode(ctx, contract, rpc.PendingBlockNumber) - return common.FromHex(out), err + return b.bcapi.GetCode(ctx, contract, rpc.PendingBlockNumber) } // ContractCall implements bind.ContractCaller executing an Ethereum contract diff --git a/eth/downloader/downloader_test.go b/eth/downloader/downloader_test.go index 267a0def9411..1fb5a0910ee7 100644 --- a/eth/downloader/downloader_test.go +++ b/eth/downloader/downloader_test.go @@ -657,7 +657,7 @@ func assertOwnForkedChain(t *testing.T, tester *downloadTester, common int, leng index = len(tester.ownHashes) - lengths[len(lengths)-1] + int(tester.downloader.queue.fastSyncPivot) } if index > 0 { - if statedb, err := state.New(tester.ownHeaders[tester.ownHashes[index]].Root, tester.stateDb); statedb == nil || err != nil { + if statedb, err := state.New(tester.ownHeaders[tester.ownHashes[index]].Root, state.NewDatabase(tester.stateDb)); statedb == nil || err != nil { t.Fatalf("state reconstruction failed: %v", err) } } diff --git a/eth/handler_test.go b/eth/handler_test.go index 413ed2bff02c..ca9c9e1b40cf 100644 --- a/eth/handler_test.go +++ b/eth/handler_test.go @@ -374,7 +374,7 @@ func testGetNodeData(t *testing.T, protocol int) { } accounts := []common.Address{testBank, acc1Addr, acc2Addr} for i := uint64(0); i <= pm.blockchain.CurrentBlock().NumberU64(); i++ { - trie, _ := state.New(pm.blockchain.GetBlockByNumber(i).Root(), statedb) + trie, _ := state.New(pm.blockchain.GetBlockByNumber(i).Root(), state.NewDatabase(statedb)) for j, acc := range accounts { state, _ := pm.blockchain.State() diff --git a/internal/ethapi/api.go b/internal/ethapi/api.go index da5dc5d5837d..c22c56dfb3bf 100644 --- a/internal/ethapi/api.go +++ b/internal/ethapi/api.go @@ -447,8 +447,8 @@ func (s *PublicBlockChainAPI) GetBalance(ctx context.Context, address common.Add if state == nil || err != nil { return nil, err } - - return state.GetBalance(ctx, address) + b := state.GetBalance(address) + return b, state.Error() } // GetBlockByNumber returns the requested block. When blockNr is -1 the chain head is returned. When fullTx is true all @@ -529,31 +529,25 @@ func (s *PublicBlockChainAPI) GetUncleCountByBlockHash(ctx context.Context, bloc } // GetCode returns the code stored at the given address in the state for the given block number. -func (s *PublicBlockChainAPI) GetCode(ctx context.Context, address common.Address, blockNr rpc.BlockNumber) (string, error) { +func (s *PublicBlockChainAPI) GetCode(ctx context.Context, address common.Address, blockNr rpc.BlockNumber) (hexutil.Bytes, error) { state, _, err := s.b.StateAndHeaderByNumber(ctx, blockNr) if state == nil || err != nil { - return "", err - } - res, err := state.GetCode(ctx, address) - if len(res) == 0 || err != nil { // backwards compatibility - return "0x", err + return nil, err } - return common.ToHex(res), nil + code := state.GetCode(address) + return code, state.Error() } // GetStorageAt returns the storage from the state at the given address, key and // block number. The rpc.LatestBlockNumber and rpc.PendingBlockNumber meta block // numbers are also allowed. -func (s *PublicBlockChainAPI) GetStorageAt(ctx context.Context, address common.Address, key string, blockNr rpc.BlockNumber) (string, error) { +func (s *PublicBlockChainAPI) GetStorageAt(ctx context.Context, address common.Address, key string, blockNr rpc.BlockNumber) (hexutil.Bytes, error) { state, _, err := s.b.StateAndHeaderByNumber(ctx, blockNr) if state == nil || err != nil { - return "0x", err - } - res, err := state.GetState(ctx, address, common.HexToHash(key)) - if err != nil { - return "0x", err + return nil, err } - return res.Hex(), nil + res := state.GetState(address, common.HexToHash(key)) + return res[:], state.Error() } // callmsg is the message type used for call transitions. @@ -978,11 +972,8 @@ func (s *PublicTransactionPoolAPI) GetTransactionCount(ctx context.Context, addr if state == nil || err != nil { return nil, err } - nonce, err := state.GetNonce(ctx, address) - if err != nil { - return nil, err - } - return (*hexutil.Uint64)(&nonce), nil + nonce := state.GetNonce(address) + return (*hexutil.Uint64)(&nonce), state.Error() } // getTransactionBlockData fetches the meta data for the given transaction from the chain database. This is useful to diff --git a/internal/ethapi/backend.go b/internal/ethapi/backend.go index 68b5069d08b6..d122b7915b0e 100644 --- a/internal/ethapi/backend.go +++ b/internal/ethapi/backend.go @@ -24,6 +24,7 @@ import ( "github.com/ethereum/go-ethereum/accounts" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/core" + "github.com/ethereum/go-ethereum/core/state" "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/core/vm" "github.com/ethereum/go-ethereum/eth/downloader" @@ -47,11 +48,12 @@ type Backend interface { SetHead(number uint64) HeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*types.Header, error) BlockByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*types.Block, error) - StateAndHeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (State, *types.Header, error) + StateAndHeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*state.StateDB, *types.Header, error) GetBlock(ctx context.Context, blockHash common.Hash) (*types.Block, error) GetReceipts(ctx context.Context, blockHash common.Hash) (types.Receipts, error) GetTd(blockHash common.Hash) *big.Int - GetEVM(ctx context.Context, msg core.Message, state State, header *types.Header, vmCfg vm.Config) (*vm.EVM, func() error, error) + GetEVM(ctx context.Context, msg core.Message, state *state.StateDB, header *types.Header, vmCfg vm.Config) (*vm.EVM, func() error, error) + // TxPool API SendTx(ctx context.Context, signedTx *types.Transaction) error RemoveTx(txHash common.Hash) @@ -65,13 +67,6 @@ type Backend interface { CurrentBlock() *types.Block } -type State interface { - GetBalance(ctx context.Context, addr common.Address) (*big.Int, error) - GetCode(ctx context.Context, addr common.Address) ([]byte, error) - GetState(ctx context.Context, a common.Address, b common.Hash) (common.Hash, error) - GetNonce(ctx context.Context, addr common.Address) (uint64, error) -} - func GetAPIs(apiBackend Backend) []rpc.API { nonceLock := new(AddrLocker) return []rpc.API{ diff --git a/les/api_backend.go b/les/api_backend.go index 7d69046deb01..7a3c2447c900 100644 --- a/les/api_backend.go +++ b/les/api_backend.go @@ -24,13 +24,13 @@ import ( "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common/math" "github.com/ethereum/go-ethereum/core" + "github.com/ethereum/go-ethereum/core/state" "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/core/vm" "github.com/ethereum/go-ethereum/eth/downloader" "github.com/ethereum/go-ethereum/eth/gasprice" "github.com/ethereum/go-ethereum/ethdb" "github.com/ethereum/go-ethereum/event" - "github.com/ethereum/go-ethereum/internal/ethapi" "github.com/ethereum/go-ethereum/light" "github.com/ethereum/go-ethereum/params" "github.com/ethereum/go-ethereum/rpc" @@ -70,12 +70,12 @@ func (b *LesApiBackend) BlockByNumber(ctx context.Context, blockNr rpc.BlockNumb return b.GetBlock(ctx, header.Hash()) } -func (b *LesApiBackend) StateAndHeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (ethapi.State, *types.Header, error) { +func (b *LesApiBackend) StateAndHeaderByNumber(ctx context.Context, blockNr rpc.BlockNumber) (*state.StateDB, *types.Header, error) { header, err := b.HeaderByNumber(ctx, blockNr) if header == nil || err != nil { return nil, nil, err } - return light.NewLightState(light.StateTrieID(header), b.eth.odr), header, nil + return light.NewState(ctx, header, b.eth.odr), header, nil } func (b *LesApiBackend) GetBlock(ctx context.Context, blockHash common.Hash) (*types.Block, error) { @@ -90,18 +90,10 @@ func (b *LesApiBackend) GetTd(blockHash common.Hash) *big.Int { return b.eth.blockchain.GetTdByHash(blockHash) } -func (b *LesApiBackend) GetEVM(ctx context.Context, msg core.Message, state ethapi.State, header *types.Header, vmCfg vm.Config) (*vm.EVM, func() error, error) { - stateDb := state.(*light.LightState).Copy() - addr := msg.From() - from, err := stateDb.GetOrNewStateObject(ctx, addr) - if err != nil { - return nil, nil, err - } - from.SetBalance(math.MaxBig256) - - vmstate := light.NewVMState(ctx, stateDb) +func (b *LesApiBackend) GetEVM(ctx context.Context, msg core.Message, state *state.StateDB, header *types.Header, vmCfg vm.Config) (*vm.EVM, func() error, error) { + state.SetBalance(msg.From(), math.MaxBig256) context := core.NewEVMContext(msg, header, b.eth.blockchain, nil) - return vm.NewEVM(context, vmstate, b.eth.chainConfig, vmCfg), vmstate.Error, nil + return vm.NewEVM(context, state, b.eth.chainConfig, vmCfg), state.Error, nil } func (b *LesApiBackend) SendTx(ctx context.Context, signedTx *types.Transaction) error { diff --git a/les/odr_test.go b/les/odr_test.go index 7b34996ceea8..3a0fd6738ff1 100644 --- a/les/odr_test.go +++ b/les/odr_test.go @@ -75,24 +75,23 @@ func odrAccounts(ctx context.Context, db ethdb.Database, config *params.ChainCon dummyAddr := common.HexToAddress("1234567812345678123456781234567812345678") acc := []common.Address{testBankAddress, acc1Addr, acc2Addr, dummyAddr} - var res []byte + var ( + res []byte + st *state.StateDB + err error + ) for _, addr := range acc { if bc != nil { header := bc.GetHeaderByHash(bhash) - st, err := state.New(header.Root, db) - if err == nil { - bal := st.GetBalance(addr) - rlp, _ := rlp.EncodeToBytes(bal) - res = append(res, rlp...) - } + st, err = state.New(header.Root, state.NewDatabase(db)) } else { header := lc.GetHeaderByHash(bhash) - st := light.NewLightState(light.StateTrieID(header), lc.Odr()) - bal, err := st.GetBalance(ctx, addr) - if err == nil { - rlp, _ := rlp.EncodeToBytes(bal) - res = append(res, rlp...) - } + st = light.NewState(ctx, header, lc.Odr()) + } + if err == nil { + bal := st.GetBalance(addr) + rlp, _ := rlp.EncodeToBytes(bal) + res = append(res, rlp...) } } @@ -115,7 +114,7 @@ func odrContractCall(ctx context.Context, db ethdb.Database, config *params.Chai data[35] = byte(i) if bc != nil { header := bc.GetHeaderByHash(bhash) - statedb, err := state.New(header.Root, db) + statedb, err := state.New(header.Root, state.NewDatabase(db)) if err == nil { from := statedb.GetOrNewStateObject(testBankAddress) @@ -133,23 +132,15 @@ func odrContractCall(ctx context.Context, db ethdb.Database, config *params.Chai } } else { header := lc.GetHeaderByHash(bhash) - state := light.NewLightState(light.StateTrieID(header), lc.Odr()) - vmstate := light.NewVMState(ctx, state) - from, err := state.GetOrNewStateObject(ctx, testBankAddress) - if err == nil { - from.SetBalance(math.MaxBig256) - - msg := callmsg{types.NewMessage(from.Address(), &testContractAddr, 0, new(big.Int), big.NewInt(100000), new(big.Int), data, false)} - - context := core.NewEVMContext(msg, header, lc, nil) - vmenv := vm.NewEVM(context, vmstate, config, vm.Config{}) - - //vmenv := light.NewEnv(ctx, state, config, lc, msg, header, vm.Config{}) - gp := new(core.GasPool).AddGas(math.MaxBig256) - ret, _, _ := core.ApplyMessage(vmenv, msg, gp) - if vmstate.Error() == nil { - res = append(res, ret...) - } + state := light.NewState(ctx, header, lc.Odr()) + state.SetBalance(testBankAddress, math.MaxBig256) + msg := callmsg{types.NewMessage(testBankAddress, &testContractAddr, 0, new(big.Int), big.NewInt(100000), new(big.Int), data, false)} + context := core.NewEVMContext(msg, header, lc, nil) + vmenv := vm.NewEVM(context, state, config, vm.Config{}) + gp := new(core.GasPool).AddGas(math.MaxBig256) + ret, _, _ := core.ApplyMessage(vmenv, msg, gp) + if state.Error() == nil { + res = append(res, ret...) } } } diff --git a/les/request_test.go b/les/request_test.go index 3add5f20d7e4..6b594462dc52 100644 --- a/les/request_test.go +++ b/les/request_test.go @@ -62,7 +62,7 @@ func tfCodeAccess(db ethdb.Database, bhash common.Hash, number uint64) light.Odr return nil } sti := light.StateTrieID(header) - ci := light.StorageTrieID(sti, testContractAddr, common.Hash{}) + ci := light.StorageTrieID(sti, crypto.Keccak256Hash(testContractAddr[:]), common.Hash{}) return &light.CodeRequest{Id: ci, Hash: crypto.Keccak256Hash(testContractCodeDeployed)} } diff --git a/light/lightchain.go b/light/lightchain.go index 5b7e570417cc..87436f4a57fd 100644 --- a/light/lightchain.go +++ b/light/lightchain.go @@ -180,11 +180,6 @@ func (self *LightChain) Status() (td *big.Int, currentBlock common.Hash, genesis return self.GetTd(hash, header.Number.Uint64()), hash, self.genesisBlock.Hash() } -// State returns a new mutable state based on the current HEAD block. -func (self *LightChain) State() *LightState { - return NewLightState(StateTrieID(self.hc.CurrentHeader()), self.odr) -} - // Reset purges the entire blockchain, restoring it to its genesis state. func (bc *LightChain) Reset() { bc.ResetWithGenesisBlock(bc.genesisBlock) diff --git a/light/odr.go b/light/odr.go index ca6364f287f1..d19a488f629f 100644 --- a/light/odr.go +++ b/light/odr.go @@ -34,7 +34,7 @@ import ( // service is not required. var NoOdr = context.Background() -// OdrBackend is an interface to a backend service that handles ODR retrievals +// OdrBackend is an interface to a backend service that handles ODR retrievals type type OdrBackend interface { Database() ethdb.Database Retrieve(ctx context.Context, req OdrRequest) error @@ -66,11 +66,11 @@ func StateTrieID(header *types.Header) *TrieID { // StorageTrieID returns a TrieID for a contract storage trie at a given account // of a given state trie. It also requires the root hash of the trie for // checking Merkle proofs. -func StorageTrieID(state *TrieID, addr common.Address, root common.Hash) *TrieID { +func StorageTrieID(state *TrieID, addrHash, root common.Hash) *TrieID { return &TrieID{ BlockHash: state.BlockHash, BlockNumber: state.BlockNumber, - AccKey: crypto.Keccak256(addr[:]), + AccKey: addrHash[:], Root: root, } } @@ -102,7 +102,7 @@ func storeProof(db ethdb.Database, proof []rlp.RawValue) { // CodeRequest is the ODR request type for retrieving contract code type CodeRequest struct { OdrRequest - Id *TrieID + Id *TrieID // references storage trie of the account Hash common.Hash Data []byte } diff --git a/light/odr_test.go b/light/odr_test.go index 576e3abc9acf..544b64effc80 100644 --- a/light/odr_test.go +++ b/light/odr_test.go @@ -86,11 +86,11 @@ func (odr *testOdr) Retrieve(ctx context.Context, req OdrRequest) error { return nil } -type odrTestFn func(ctx context.Context, db ethdb.Database, bc *core.BlockChain, lc *LightChain, bhash common.Hash) []byte +type odrTestFn func(ctx context.Context, db ethdb.Database, bc *core.BlockChain, lc *LightChain, bhash common.Hash) ([]byte, error) -func TestOdrGetBlockLes1(t *testing.T) { testChainOdr(t, 1, 1, odrGetBlock) } +func TestOdrGetBlockLes1(t *testing.T) { testChainOdr(t, 1, odrGetBlock) } -func odrGetBlock(ctx context.Context, db ethdb.Database, bc *core.BlockChain, lc *LightChain, bhash common.Hash) []byte { +func odrGetBlock(ctx context.Context, db ethdb.Database, bc *core.BlockChain, lc *LightChain, bhash common.Hash) ([]byte, error) { var block *types.Block if bc != nil { block = bc.GetBlockByHash(bhash) @@ -98,15 +98,15 @@ func odrGetBlock(ctx context.Context, db ethdb.Database, bc *core.BlockChain, lc block, _ = lc.GetBlockByHash(ctx, bhash) } if block == nil { - return nil + return nil, nil } rlp, _ := rlp.EncodeToBytes(block) - return rlp + return rlp, nil } -func TestOdrGetReceiptsLes1(t *testing.T) { testChainOdr(t, 1, 1, odrGetReceipts) } +func TestOdrGetReceiptsLes1(t *testing.T) { testChainOdr(t, 1, odrGetReceipts) } -func odrGetReceipts(ctx context.Context, db ethdb.Database, bc *core.BlockChain, lc *LightChain, bhash common.Hash) []byte { +func odrGetReceipts(ctx context.Context, db ethdb.Database, bc *core.BlockChain, lc *LightChain, bhash common.Hash) ([]byte, error) { var receipts types.Receipts if bc != nil { receipts = core.GetBlockReceipts(db, bhash, core.GetBlockNumber(db, bhash)) @@ -114,43 +114,37 @@ func odrGetReceipts(ctx context.Context, db ethdb.Database, bc *core.BlockChain, receipts, _ = GetBlockReceipts(ctx, lc.Odr(), bhash, core.GetBlockNumber(db, bhash)) } if receipts == nil { - return nil + return nil, nil } rlp, _ := rlp.EncodeToBytes(receipts) - return rlp + return rlp, nil } -func TestOdrAccountsLes1(t *testing.T) { testChainOdr(t, 1, 1, odrAccounts) } +func TestOdrAccountsLes1(t *testing.T) { testChainOdr(t, 1, odrAccounts) } -func odrAccounts(ctx context.Context, db ethdb.Database, bc *core.BlockChain, lc *LightChain, bhash common.Hash) []byte { +func odrAccounts(ctx context.Context, db ethdb.Database, bc *core.BlockChain, lc *LightChain, bhash common.Hash) ([]byte, error) { dummyAddr := common.HexToAddress("1234567812345678123456781234567812345678") acc := []common.Address{testBankAddress, acc1Addr, acc2Addr, dummyAddr} + var st *state.StateDB + if bc == nil { + header := lc.GetHeaderByHash(bhash) + st = NewState(ctx, header, lc.Odr()) + } else { + header := bc.GetHeaderByHash(bhash) + st, _ = state.New(header.Root, state.NewDatabase(db)) + } + var res []byte for _, addr := range acc { - if bc != nil { - header := bc.GetHeaderByHash(bhash) - st, err := state.New(header.Root, db) - if err == nil { - bal := st.GetBalance(addr) - rlp, _ := rlp.EncodeToBytes(bal) - res = append(res, rlp...) - } - } else { - header := lc.GetHeaderByHash(bhash) - st := NewLightState(StateTrieID(header), lc.Odr()) - bal, err := st.GetBalance(ctx, addr) - if err == nil { - rlp, _ := rlp.EncodeToBytes(bal) - res = append(res, rlp...) - } - } + bal := st.GetBalance(addr) + rlp, _ := rlp.EncodeToBytes(bal) + res = append(res, rlp...) } - - return res + return res, st.Error() } -func TestOdrContractCallLes1(t *testing.T) { testChainOdr(t, 1, 2, odrContractCall) } +func TestOdrContractCallLes1(t *testing.T) { testChainOdr(t, 1, odrContractCall) } type callmsg struct { types.Message @@ -158,50 +152,42 @@ type callmsg struct { func (callmsg) CheckNonce() bool { return false } -func odrContractCall(ctx context.Context, db ethdb.Database, bc *core.BlockChain, lc *LightChain, bhash common.Hash) []byte { +func odrContractCall(ctx context.Context, db ethdb.Database, bc *core.BlockChain, lc *LightChain, bhash common.Hash) ([]byte, error) { data := common.Hex2Bytes("60CD26850000000000000000000000000000000000000000000000000000000000000000") - config := params.TestChainConfig var res []byte for i := 0; i < 3; i++ { data[35] = byte(i) - if bc != nil { - header := bc.GetHeaderByHash(bhash) - statedb, err := state.New(header.Root, db) - if err == nil { - from := statedb.GetOrNewStateObject(testBankAddress) - from.SetBalance(math.MaxBig256) - - msg := callmsg{types.NewMessage(from.Address(), &testContractAddr, 0, new(big.Int), big.NewInt(1000000), new(big.Int), data, false)} - context := core.NewEVMContext(msg, header, bc, nil) - vmenv := vm.NewEVM(context, statedb, config, vm.Config{}) - - gp := new(core.GasPool).AddGas(math.MaxBig256) - ret, _, _ := core.ApplyMessage(vmenv, msg, gp) - res = append(res, ret...) - } + var ( + st *state.StateDB + header *types.Header + chain core.ChainContext + ) + if bc == nil { + chain = lc + header = lc.GetHeaderByHash(bhash) + st = NewState(ctx, header, lc.Odr()) } else { - header := lc.GetHeaderByHash(bhash) - state := NewLightState(StateTrieID(header), lc.Odr()) - vmstate := NewVMState(ctx, state) - from, err := state.GetOrNewStateObject(ctx, testBankAddress) - if err == nil { - from.SetBalance(math.MaxBig256) - - msg := callmsg{types.NewMessage(from.Address(), &testContractAddr, 0, new(big.Int), big.NewInt(1000000), new(big.Int), data, false)} - context := core.NewEVMContext(msg, header, lc, nil) - vmenv := vm.NewEVM(context, vmstate, config, vm.Config{}) - gp := new(core.GasPool).AddGas(math.MaxBig256) - ret, _, _ := core.ApplyMessage(vmenv, msg, gp) - if vmstate.Error() == nil { - res = append(res, ret...) - } - } + chain = bc + header = bc.GetHeaderByHash(bhash) + st, _ = state.New(header.Root, state.NewDatabase(db)) + } + + // Perform read-only call. + st.SetBalance(testBankAddress, math.MaxBig256) + msg := callmsg{types.NewMessage(testBankAddress, &testContractAddr, 0, new(big.Int), big.NewInt(1000000), new(big.Int), data, false)} + context := core.NewEVMContext(msg, header, chain, nil) + vmenv := vm.NewEVM(context, st, config, vm.Config{}) + gp := new(core.GasPool).AddGas(math.MaxBig256) + ret, _, _ := core.ApplyMessage(vmenv, msg, gp) + res = append(res, ret...) + if st.Error() != nil { + return res, st.Error() } } - return res + return res, nil } func testChainGen(i int, block *core.BlockGen) { @@ -245,7 +231,7 @@ func testChainGen(i int, block *core.BlockGen) { } } -func testChainOdr(t *testing.T, protocol int, expFail uint64, fn odrTestFn) { +func testChainOdr(t *testing.T, protocol int, fn odrTestFn) { var ( evmux = new(event.TypeMux) sdb, _ = ethdb.NewMemDatabase() @@ -258,46 +244,58 @@ func testChainOdr(t *testing.T, protocol int, expFail uint64, fn odrTestFn) { blockchain, _ := core.NewBlockChain(sdb, params.TestChainConfig, ethash.NewFullFaker(), evmux, vm.Config{}) gchain, _ := core.GenerateChain(params.TestChainConfig, genesis, sdb, 4, testChainGen) if _, err := blockchain.InsertChain(gchain); err != nil { - panic(err) + t.Fatal(err) } odr := &testOdr{sdb: sdb, ldb: ldb} - lightchain, _ := NewLightChain(odr, params.TestChainConfig, ethash.NewFullFaker(), evmux) + lightchain, err := NewLightChain(odr, params.TestChainConfig, ethash.NewFullFaker(), evmux) + if err != nil { + t.Fatal(err) + } headers := make([]*types.Header, len(gchain)) for i, block := range gchain { headers[i] = block.Header() } if _, err := lightchain.InsertHeaderChain(headers, 1); err != nil { - panic(err) + t.Fatal(err) } - test := func(expFail uint64) { + test := func(expFail int) { for i := uint64(0); i <= blockchain.CurrentHeader().Number.Uint64(); i++ { bhash := core.GetCanonicalHash(sdb, i) - b1 := fn(NoOdr, sdb, blockchain, nil, bhash) + b1, err := fn(NoOdr, sdb, blockchain, nil, bhash) + if err != nil { + t.Fatalf("error in full-node test for block %d: %v", i, err) + } ctx, cancel := context.WithTimeout(context.Background(), 200*time.Millisecond) defer cancel() - b2 := fn(ctx, ldb, nil, lightchain, bhash) + + exp := i < uint64(expFail) + b2, err := fn(ctx, ldb, nil, lightchain, bhash) + if err != nil && exp { + t.Errorf("error in ODR test for block %d: %v", i, err) + } eq := bytes.Equal(b1, b2) - exp := i < expFail if exp && !eq { - t.Errorf("odr mismatch") - } - if !exp && eq { - t.Errorf("unexpected odr match") + t.Errorf("ODR test output for block %d doesn't match full node", i) } } } - odr.disable = true // expect retrievals to fail (except genesis block) without a les peer - test(expFail) - odr.disable = false - // expect all retrievals to pass - test(5) + t.Log("checking without ODR") odr.disable = true + test(1) + + // expect all retrievals to pass with ODR enabled + t.Log("checking with ODR") + odr.disable = false + test(len(gchain)) + // still expect all retrievals to pass, now data should be cached locally - test(5) + t.Log("checking without ODR, should be cached") + odr.disable = true + test(len(gchain)) } diff --git a/light/odr_util.go b/light/odr_util.go index d7f8458f128d..fcdfdb82c6b7 100644 --- a/light/odr_util.go +++ b/light/odr_util.go @@ -106,25 +106,6 @@ func GetCanonicalHash(ctx context.Context, odr OdrBackend, number uint64) (commo return common.Hash{}, err } -// retrieveContractCode tries to retrieve the contract code of the given account -// with the given hash from the network (id points to the storage trie belonging -// to the same account) -func retrieveContractCode(ctx context.Context, odr OdrBackend, id *TrieID, hash common.Hash) ([]byte, error) { - if hash == sha3_nil { - return nil, nil - } - res, _ := odr.Database().Get(hash[:]) - if res != nil { - return res, nil - } - r := &CodeRequest{Id: id, Hash: hash} - if err := odr.Retrieve(ctx, r); err != nil { - return nil, err - } else { - return r.Data, nil - } -} - // GetBodyRLP retrieves the block body (transactions and uncles) in RLP encoding. func GetBodyRLP(ctx context.Context, odr OdrBackend, hash common.Hash, number uint64) (rlp.RawValue, error) { if data := core.GetBodyRLP(odr.Database(), hash, number); data != nil { diff --git a/light/state.go b/light/state.go deleted file mode 100644 index b184dc3a5cdc..000000000000 --- a/light/state.go +++ /dev/null @@ -1,316 +0,0 @@ -// Copyright 2015 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 light - -import ( - "context" - "math/big" - - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/crypto" -) - -// LightState is a memory representation of a state. -// This version is ODR capable, caching only the already accessed part of the -// state, retrieving unknown parts on-demand from the ODR backend. Changes are -// never stored in the local database, only in the memory objects. -type LightState struct { - odr OdrBackend - trie *LightTrie - id *TrieID - stateObjects map[string]*StateObject - refund *big.Int -} - -// NewLightState creates a new LightState with the specified root. -// Note that the creation of a light state is always successful, even if the -// root is non-existent. In that case, ODR retrieval will always be unsuccessful -// and every operation will return with an error or wait for the context to be -// cancelled. -func NewLightState(id *TrieID, odr OdrBackend) *LightState { - var tr *LightTrie - if id != nil { - tr = NewLightTrie(id, odr, true) - } - return &LightState{ - odr: odr, - trie: tr, - id: id, - stateObjects: make(map[string]*StateObject), - refund: new(big.Int), - } -} - -// AddRefund adds an amount to the refund value collected during a vm execution -func (self *LightState) AddRefund(gas *big.Int) { - self.refund.Add(self.refund, gas) -} - -// HasAccount returns true if an account exists at the given address -func (self *LightState) HasAccount(ctx context.Context, addr common.Address) (bool, error) { - so, err := self.GetStateObject(ctx, addr) - return so != nil, err -} - -// GetBalance retrieves the balance from the given address or 0 if the account does -// not exist -func (self *LightState) GetBalance(ctx context.Context, addr common.Address) (*big.Int, error) { - stateObject, err := self.GetStateObject(ctx, addr) - if err != nil { - return common.Big0, err - } - if stateObject != nil { - return stateObject.balance, nil - } - - return common.Big0, nil -} - -// GetNonce returns the nonce at the given address or 0 if the account does -// not exist -func (self *LightState) GetNonce(ctx context.Context, addr common.Address) (uint64, error) { - stateObject, err := self.GetStateObject(ctx, addr) - if err != nil { - return 0, err - } - if stateObject != nil { - return stateObject.nonce, nil - } - return 0, nil -} - -// GetCode returns the contract code at the given address or nil if the account -// does not exist -func (self *LightState) GetCode(ctx context.Context, addr common.Address) ([]byte, error) { - stateObject, err := self.GetStateObject(ctx, addr) - if err != nil { - return nil, err - } - if stateObject != nil { - return stateObject.code, nil - } - return nil, nil -} - -// GetState returns the contract storage value at storage address b from the -// contract address a or common.Hash{} if the account does not exist -func (self *LightState) GetState(ctx context.Context, a common.Address, b common.Hash) (common.Hash, error) { - stateObject, err := self.GetStateObject(ctx, a) - if err == nil && stateObject != nil { - return stateObject.GetState(ctx, b) - } - return common.Hash{}, err -} - -// HasSuicided returns true if the given account has been marked for deletion -// or false if the account does not exist -func (self *LightState) HasSuicided(ctx context.Context, addr common.Address) (bool, error) { - stateObject, err := self.GetStateObject(ctx, addr) - if err == nil && stateObject != nil { - return stateObject.remove, nil - } - return false, err -} - -/* - * SETTERS - */ - -// AddBalance adds the given amount to the balance of the specified account -func (self *LightState) AddBalance(ctx context.Context, addr common.Address, amount *big.Int) error { - stateObject, err := self.GetOrNewStateObject(ctx, addr) - if err == nil && stateObject != nil { - stateObject.AddBalance(amount) - } - return err -} - -// SubBalance adds the given amount to the balance of the specified account -func (self *LightState) SubBalance(ctx context.Context, addr common.Address, amount *big.Int) error { - stateObject, err := self.GetOrNewStateObject(ctx, addr) - if err == nil && stateObject != nil { - stateObject.SubBalance(amount) - } - return err -} - -// SetNonce sets the nonce of the specified account -func (self *LightState) SetNonce(ctx context.Context, addr common.Address, nonce uint64) error { - stateObject, err := self.GetOrNewStateObject(ctx, addr) - if err == nil && stateObject != nil { - stateObject.SetNonce(nonce) - } - return err -} - -// SetCode sets the contract code at the specified account -func (self *LightState) SetCode(ctx context.Context, addr common.Address, code []byte) error { - stateObject, err := self.GetOrNewStateObject(ctx, addr) - if err == nil && stateObject != nil { - stateObject.SetCode(crypto.Keccak256Hash(code), code) - } - return err -} - -// SetState sets the storage value at storage address key of the account addr -func (self *LightState) SetState(ctx context.Context, addr common.Address, key common.Hash, value common.Hash) error { - stateObject, err := self.GetOrNewStateObject(ctx, addr) - if err == nil && stateObject != nil { - stateObject.SetState(key, value) - } - return err -} - -// Delete marks an account to be removed and clears its balance -func (self *LightState) Suicide(ctx context.Context, addr common.Address) (bool, error) { - stateObject, err := self.GetOrNewStateObject(ctx, addr) - if err == nil && stateObject != nil { - stateObject.MarkForDeletion() - stateObject.balance = new(big.Int) - - return true, nil - } - - return false, err -} - -// -// Get, set, new state object methods -// - -// GetStateObject returns the state object of the given account or nil if the -// account does not exist -func (self *LightState) GetStateObject(ctx context.Context, addr common.Address) (stateObject *StateObject, err error) { - stateObject = self.stateObjects[addr.Str()] - if stateObject != nil { - if stateObject.deleted { - stateObject = nil - } - return stateObject, nil - } - data, err := self.trie.Get(ctx, addr[:]) - if err != nil { - return nil, err - } - if len(data) == 0 { - return nil, nil - } - - stateObject, err = DecodeObject(ctx, self.id, addr, self.odr, []byte(data)) - if err != nil { - return nil, err - } - - self.SetStateObject(stateObject) - - return stateObject, nil -} - -// SetStateObject sets the state object of the given account -func (self *LightState) SetStateObject(object *StateObject) { - self.stateObjects[object.Address().Str()] = object -} - -// GetOrNewStateObject returns the state object of the given account or creates a -// new one if the account does not exist -func (self *LightState) GetOrNewStateObject(ctx context.Context, addr common.Address) (*StateObject, error) { - stateObject, err := self.GetStateObject(ctx, addr) - if err == nil && (stateObject == nil || stateObject.deleted) { - stateObject, err = self.CreateStateObject(ctx, addr) - } - return stateObject, err -} - -// newStateObject creates a state object whether it exists in the state or not -func (self *LightState) newStateObject(addr common.Address) *StateObject { - stateObject := NewStateObject(addr, self.odr) - self.stateObjects[addr.Str()] = stateObject - - return stateObject -} - -// CreateStateObject creates creates a new state object and takes ownership. -// This is different from "NewStateObject" -func (self *LightState) CreateStateObject(ctx context.Context, addr common.Address) (*StateObject, error) { - // Get previous (if any) - so, err := self.GetStateObject(ctx, addr) - if err != nil { - return nil, err - } - // Create a new one - newSo := self.newStateObject(addr) - - // If it existed set the balance to the new account - if so != nil { - newSo.balance = so.balance - } - - return newSo, nil -} - -// ForEachStorage calls a callback function for every key/value pair found -// in the local storage cache. Note that unlike core/state.StateObject, -// light.StateObject only returns cached values and doesn't download the -// entire storage tree. -func (self *LightState) ForEachStorage(ctx context.Context, addr common.Address, cb func(key, value common.Hash) bool) error { - so, err := self.GetStateObject(ctx, addr) - if err != nil { - return err - } - - if so == nil { - return nil - } - - for h, v := range so.storage { - cb(h, v) - } - return nil -} - -// -// Setting, copying of the state methods -// - -// Copy creates a copy of the state -func (self *LightState) Copy() *LightState { - // ignore error - we assume state-to-be-copied always exists - state := NewLightState(nil, self.odr) - state.trie = self.trie - state.id = self.id - for k, stateObject := range self.stateObjects { - if stateObject.dirty { - state.stateObjects[k] = stateObject.Copy() - } - } - - state.refund.Set(self.refund) - return state -} - -// Set copies the contents of the given state onto this state, overwriting -// its contents -func (self *LightState) Set(state *LightState) { - self.trie = state.trie - self.stateObjects = state.stateObjects - self.refund = state.refund -} - -// GetRefund returns the refund value collected during a vm execution -func (self *LightState) GetRefund() *big.Int { - return self.refund -} diff --git a/light/state_object.go b/light/state_object.go deleted file mode 100644 index a54ea1d9ffe1..000000000000 --- a/light/state_object.go +++ /dev/null @@ -1,275 +0,0 @@ -// Copyright 2015 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 light - -import ( - "bytes" - "context" - "fmt" - "math/big" - - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/crypto" - "github.com/ethereum/go-ethereum/rlp" -) - -var emptyCodeHash = crypto.Keccak256(nil) - -// Code represents a contract code in binary form -type Code []byte - -// String returns a string representation of the code -func (self Code) String() string { - return string(self) //strings.Join(Disassemble(self), " ") -} - -// Storage is a memory map cache of a contract storage -type Storage map[common.Hash]common.Hash - -// String returns a string representation of the storage cache -func (self Storage) String() (str string) { - for key, value := range self { - str += fmt.Sprintf("%X : %X\n", key, value) - } - - return -} - -// Copy copies the contents of a storage cache -func (self Storage) Copy() Storage { - cpy := make(Storage) - for key, value := range self { - cpy[key] = value - } - - return cpy -} - -// StateObject is a memory representation of an account or contract and its storage. -// This version is ODR capable, caching only the already accessed part of the -// storage, retrieving unknown parts on-demand from the ODR backend. Changes are -// never stored in the local database, only in the memory objects. -type StateObject struct { - odr OdrBackend - trie *LightTrie - - // Address belonging to this account - address common.Address - // The balance of the account - balance *big.Int - // The nonce of the account - nonce uint64 - // The code hash if code is present (i.e. a contract) - codeHash []byte - // The code for this account - code Code - // Cached storage (flushed when updated) - storage Storage - - // Mark for deletion - // When an object is marked for deletion it will be delete from the trie - // during the "update" phase of the state transition - remove bool - deleted bool - dirty bool -} - -// NewStateObject creates a new StateObject of the specified account address -func NewStateObject(address common.Address, odr OdrBackend) *StateObject { - object := &StateObject{ - odr: odr, - address: address, - balance: new(big.Int), - dirty: true, - codeHash: emptyCodeHash, - storage: make(Storage), - } - object.trie = NewLightTrie(&TrieID{}, odr, true) - return object -} - -// MarkForDeletion marks an account to be removed -func (self *StateObject) MarkForDeletion() { - self.remove = true - self.dirty = true -} - -// getAddr gets the storage value at the given address from the trie -func (c *StateObject) getAddr(ctx context.Context, addr common.Hash) (common.Hash, error) { - var ret []byte - val, err := c.trie.Get(ctx, addr[:]) - if err != nil { - return common.Hash{}, err - } - rlp.DecodeBytes(val, &ret) - return common.BytesToHash(ret), nil -} - -// Storage returns the storage cache object of the account -func (self *StateObject) Storage() Storage { - return self.storage -} - -// GetState returns the storage value at the given address from either the cache -// or the trie -func (self *StateObject) GetState(ctx context.Context, key common.Hash) (common.Hash, error) { - value, exists := self.storage[key] - if !exists { - var err error - value, err = self.getAddr(ctx, key) - if err != nil { - return common.Hash{}, err - } - if (value != common.Hash{}) { - self.storage[key] = value - } - } - - return value, nil -} - -// SetState sets the storage value at the given address -func (self *StateObject) SetState(k, value common.Hash) { - self.storage[k] = value - self.dirty = true -} - -// AddBalance adds the given amount to the account balance -func (c *StateObject) AddBalance(amount *big.Int) { - c.SetBalance(new(big.Int).Add(c.balance, amount)) -} - -// SubBalance subtracts the given amount from the account balance -func (c *StateObject) SubBalance(amount *big.Int) { - c.SetBalance(new(big.Int).Sub(c.balance, amount)) -} - -// SetBalance sets the account balance to the given amount -func (c *StateObject) SetBalance(amount *big.Int) { - c.balance = amount - c.dirty = true -} - -// ReturnGas returns the gas back to the origin. Used by the Virtual machine or Closures -func (c *StateObject) ReturnGas(gas *big.Int) {} - -// Copy creates a copy of the state object -func (self *StateObject) Copy() *StateObject { - stateObject := NewStateObject(self.Address(), self.odr) - stateObject.balance.Set(self.balance) - stateObject.codeHash = common.CopyBytes(self.codeHash) - stateObject.nonce = self.nonce - stateObject.trie = self.trie - stateObject.code = self.code - stateObject.storage = self.storage.Copy() - stateObject.remove = self.remove - stateObject.dirty = self.dirty - stateObject.deleted = self.deleted - - return stateObject -} - -// -// Attribute accessors -// - -// empty returns whether the account is considered empty. -func (self *StateObject) empty() bool { - return self.nonce == 0 && self.balance.Sign() == 0 && bytes.Equal(self.codeHash, emptyCodeHash) -} - -// Balance returns the account balance -func (self *StateObject) Balance() *big.Int { - return self.balance -} - -// Address returns the address of the contract/account -func (self *StateObject) Address() common.Address { - return self.address -} - -// Code returns the contract code -func (self *StateObject) Code() []byte { - return self.code -} - -// SetCode sets the contract code -func (self *StateObject) SetCode(hash common.Hash, code []byte) { - self.code = code - self.codeHash = hash[:] - self.dirty = true -} - -// SetNonce sets the account nonce -func (self *StateObject) SetNonce(nonce uint64) { - self.nonce = nonce - self.dirty = true -} - -// Nonce returns the account nonce -func (self *StateObject) Nonce() uint64 { - return self.nonce -} - -// ForEachStorage calls a callback function for every key/value pair found -// in the local storage cache. Note that unlike core/state.StateObject, -// light.StateObject only returns cached values and doesn't download the -// entire storage tree. -func (self *StateObject) ForEachStorage(cb func(key, value common.Hash) bool) { - for h, v := range self.storage { - cb(h, v) - } -} - -// Never called, but must be present to allow StateObject to be used -// as a vm.Account interface that also satisfies the vm.ContractRef -// interface. Interfaces are awesome. -func (self *StateObject) Value() *big.Int { - panic("Value on StateObject should never be called") -} - -// Encoding - -type extStateObject struct { - Nonce uint64 - Balance *big.Int - Root common.Hash - CodeHash []byte -} - -// DecodeObject decodes an RLP-encoded state object. -func DecodeObject(ctx context.Context, stateID *TrieID, address common.Address, odr OdrBackend, data []byte) (*StateObject, error) { - var ( - obj = &StateObject{address: address, odr: odr, storage: make(Storage)} - ext extStateObject - err error - ) - if err = rlp.DecodeBytes(data, &ext); err != nil { - return nil, err - } - trieID := StorageTrieID(stateID, address, ext.Root) - obj.trie = NewLightTrie(trieID, odr, true) - if !bytes.Equal(ext.CodeHash, emptyCodeHash) { - if obj.code, err = retrieveContractCode(ctx, obj.odr, trieID, common.BytesToHash(ext.CodeHash)); err != nil { - return nil, fmt.Errorf("can't find code for hash %x: %v", ext.CodeHash, err) - } - } - obj.nonce = ext.Nonce - obj.balance = ext.Balance - obj.codeHash = ext.CodeHash - return obj, nil -} diff --git a/light/state_test.go b/light/state_test.go deleted file mode 100644 index e776efec8e8c..000000000000 --- a/light/state_test.go +++ /dev/null @@ -1,248 +0,0 @@ -// Copyright 2015 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 light - -import ( - "bytes" - "context" - "math/big" - "testing" - - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/core" - "github.com/ethereum/go-ethereum/core/state" - "github.com/ethereum/go-ethereum/core/types" - "github.com/ethereum/go-ethereum/ethdb" -) - -func makeTestState() (common.Hash, ethdb.Database) { - sdb, _ := ethdb.NewMemDatabase() - st, _ := state.New(common.Hash{}, sdb) - for i := byte(0); i < 100; i++ { - addr := common.Address{i} - for j := byte(0); j < 100; j++ { - st.SetState(addr, common.Hash{j}, common.Hash{i, j}) - } - st.SetNonce(addr, 100) - st.AddBalance(addr, big.NewInt(int64(i))) - st.SetCode(addr, []byte{i, i, i}) - } - root, _ := st.Commit(false) - return root, sdb -} - -func TestLightStateOdr(t *testing.T) { - root, sdb := makeTestState() - header := &types.Header{Root: root, Number: big.NewInt(0)} - core.WriteHeader(sdb, header) - ldb, _ := ethdb.NewMemDatabase() - odr := &testOdr{sdb: sdb, ldb: ldb} - ls := NewLightState(StateTrieID(header), odr) - ctx := context.Background() - - for i := byte(0); i < 100; i++ { - addr := common.Address{i} - err := ls.AddBalance(ctx, addr, big.NewInt(1000)) - if err != nil { - t.Fatalf("Error adding balance to acc[%d]: %v", i, err) - } - err = ls.SetState(ctx, addr, common.Hash{100}, common.Hash{i, 100}) - if err != nil { - t.Fatalf("Error setting storage of acc[%d]: %v", i, err) - } - } - - addr := common.Address{100} - _, err := ls.CreateStateObject(ctx, addr) - if err != nil { - t.Fatalf("Error creating state object: %v", err) - } - err = ls.SetCode(ctx, addr, []byte{100, 100, 100}) - if err != nil { - t.Fatalf("Error setting code: %v", err) - } - err = ls.AddBalance(ctx, addr, big.NewInt(1100)) - if err != nil { - t.Fatalf("Error adding balance to acc[100]: %v", err) - } - for j := byte(0); j < 101; j++ { - err = ls.SetState(ctx, addr, common.Hash{j}, common.Hash{100, j}) - if err != nil { - t.Fatalf("Error setting storage of acc[100]: %v", err) - } - } - err = ls.SetNonce(ctx, addr, 100) - if err != nil { - t.Fatalf("Error setting nonce for acc[100]: %v", err) - } - - for i := byte(0); i < 101; i++ { - addr := common.Address{i} - - bal, err := ls.GetBalance(ctx, addr) - if err != nil { - t.Fatalf("Error getting balance of acc[%d]: %v", i, err) - } - if bal.Int64() != int64(i)+1000 { - t.Fatalf("Incorrect balance at acc[%d]: expected %v, got %v", i, int64(i)+1000, bal.Int64()) - } - - nonce, err := ls.GetNonce(ctx, addr) - if err != nil { - t.Fatalf("Error getting nonce of acc[%d]: %v", i, err) - } - if nonce != 100 { - t.Fatalf("Incorrect nonce at acc[%d]: expected %v, got %v", i, 100, nonce) - } - - code, err := ls.GetCode(ctx, addr) - exp := []byte{i, i, i} - if err != nil { - t.Fatalf("Error getting code of acc[%d]: %v", i, err) - } - if !bytes.Equal(code, exp) { - t.Fatalf("Incorrect code at acc[%d]: expected %v, got %v", i, exp, code) - } - - for j := byte(0); j < 101; j++ { - exp := common.Hash{i, j} - val, err := ls.GetState(ctx, addr, common.Hash{j}) - if err != nil { - t.Fatalf("Error retrieving acc[%d].storage[%d]: %v", i, j, err) - } - if val != exp { - t.Fatalf("Retrieved wrong value from acc[%d].storage[%d]: expected %04x, got %04x", i, j, exp, val) - } - } - } -} - -func TestLightStateSetCopy(t *testing.T) { - root, sdb := makeTestState() - header := &types.Header{Root: root, Number: big.NewInt(0)} - core.WriteHeader(sdb, header) - ldb, _ := ethdb.NewMemDatabase() - odr := &testOdr{sdb: sdb, ldb: ldb} - ls := NewLightState(StateTrieID(header), odr) - ctx := context.Background() - - for i := byte(0); i < 100; i++ { - addr := common.Address{i} - err := ls.AddBalance(ctx, addr, big.NewInt(1000)) - if err != nil { - t.Fatalf("Error adding balance to acc[%d]: %v", i, err) - } - err = ls.SetState(ctx, addr, common.Hash{100}, common.Hash{i, 100}) - if err != nil { - t.Fatalf("Error setting storage of acc[%d]: %v", i, err) - } - } - - ls2 := ls.Copy() - - for i := byte(0); i < 100; i++ { - addr := common.Address{i} - err := ls2.AddBalance(ctx, addr, big.NewInt(1000)) - if err != nil { - t.Fatalf("Error adding balance to acc[%d]: %v", i, err) - } - err = ls2.SetState(ctx, addr, common.Hash{100}, common.Hash{i, 200}) - if err != nil { - t.Fatalf("Error setting storage of acc[%d]: %v", i, err) - } - } - - lsx := ls.Copy() - ls.Set(ls2) - ls2.Set(lsx) - - for i := byte(0); i < 100; i++ { - addr := common.Address{i} - // check balance in ls - bal, err := ls.GetBalance(ctx, addr) - if err != nil { - t.Fatalf("Error getting balance to acc[%d]: %v", i, err) - } - if bal.Int64() != int64(i)+2000 { - t.Fatalf("Incorrect balance at ls.acc[%d]: expected %v, got %v", i, int64(i)+1000, bal.Int64()) - } - // check balance in ls2 - bal, err = ls2.GetBalance(ctx, addr) - if err != nil { - t.Fatalf("Error getting balance to acc[%d]: %v", i, err) - } - if bal.Int64() != int64(i)+1000 { - t.Fatalf("Incorrect balance at ls.acc[%d]: expected %v, got %v", i, int64(i)+1000, bal.Int64()) - } - // check storage in ls - exp := common.Hash{i, 200} - val, err := ls.GetState(ctx, addr, common.Hash{100}) - if err != nil { - t.Fatalf("Error retrieving acc[%d].storage[100]: %v", i, err) - } - if val != exp { - t.Fatalf("Retrieved wrong value from acc[%d].storage[100]: expected %04x, got %04x", i, exp, val) - } - // check storage in ls2 - exp = common.Hash{i, 100} - val, err = ls2.GetState(ctx, addr, common.Hash{100}) - if err != nil { - t.Fatalf("Error retrieving acc[%d].storage[100]: %v", i, err) - } - if val != exp { - t.Fatalf("Retrieved wrong value from acc[%d].storage[100]: expected %04x, got %04x", i, exp, val) - } - } -} - -func TestLightStateDelete(t *testing.T) { - root, sdb := makeTestState() - header := &types.Header{Root: root, Number: big.NewInt(0)} - core.WriteHeader(sdb, header) - ldb, _ := ethdb.NewMemDatabase() - odr := &testOdr{sdb: sdb, ldb: ldb} - ls := NewLightState(StateTrieID(header), odr) - ctx := context.Background() - - addr := common.Address{42} - - b, err := ls.HasAccount(ctx, addr) - if err != nil { - t.Fatalf("HasAccount error: %v", err) - } - if !b { - t.Fatalf("HasAccount returned false, expected true") - } - - b, err = ls.HasSuicided(ctx, addr) - if err != nil { - t.Fatalf("HasSuicided error: %v", err) - } - if b { - t.Fatalf("HasSuicided returned true, expected false") - } - - ls.Suicide(ctx, addr) - - b, err = ls.HasSuicided(ctx, addr) - if err != nil { - t.Fatalf("HasSuicided error: %v", err) - } - if !b { - t.Fatalf("HasSuicided returned false, expected true") - } -} diff --git a/light/trie.go b/light/trie.go index 2988a16cf3c7..7502b6e5ddd6 100644 --- a/light/trie.go +++ b/light/trie.go @@ -18,99 +18,216 @@ package light import ( "context" + "fmt" + "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/core/state" + "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/crypto" - "github.com/ethereum/go-ethereum/ethdb" "github.com/ethereum/go-ethereum/trie" ) -// LightTrie is an ODR-capable wrapper around trie.SecureTrie -type LightTrie struct { - trie *trie.SecureTrie +func NewState(ctx context.Context, head *types.Header, odr OdrBackend) *state.StateDB { + state, _ := state.New(head.Root, NewStateDatabase(ctx, head, odr)) + return state +} + +func NewStateDatabase(ctx context.Context, head *types.Header, odr OdrBackend) state.Database { + return &odrDatabase{ctx, StateTrieID(head), odr} +} + +type odrDatabase struct { + ctx context.Context + id *TrieID + backend OdrBackend +} + +func (db *odrDatabase) OpenTrie(root common.Hash) (state.Trie, error) { + return &odrTrie{db: db, id: db.id}, nil +} + +func (db *odrDatabase) OpenStorageTrie(addrHash, root common.Hash) (state.Trie, error) { + return &odrTrie{db: db, id: StorageTrieID(db.id, addrHash, root)}, nil +} + +func (db *odrDatabase) CopyTrie(t state.Trie) state.Trie { + switch t := t.(type) { + case *odrTrie: + cpy := &odrTrie{db: t.db, id: t.id} + if t.trie != nil { + cpytrie := *t.trie + cpy.trie = &cpytrie + } + return cpy + default: + panic(fmt.Errorf("unknown trie type %T", t)) + } +} + +func (db *odrDatabase) ContractCode(addrHash, codeHash common.Hash) ([]byte, error) { + if codeHash == sha3_nil { + return nil, nil + } + if code, err := db.backend.Database().Get(codeHash[:]); err == nil { + return code, nil + } + id := *db.id + id.AccKey = addrHash[:] + req := &CodeRequest{Id: &id, Hash: codeHash} + err := db.backend.Retrieve(db.ctx, req) + return req.Data, err +} + +func (db *odrDatabase) ContractCodeSize(addrHash, codeHash common.Hash) (int, error) { + code, err := db.ContractCode(addrHash, codeHash) + return len(code), err +} + +type odrTrie struct { + db *odrDatabase id *TrieID - odr OdrBackend - db ethdb.Database -} - -// NewLightTrie creates a new LightTrie instance. It doesn't instantly try to -// access the db or network and retrieve the root node, it only initializes its -// encapsulated SecureTrie at the first actual operation. -func NewLightTrie(id *TrieID, odr OdrBackend, useFakeMap bool) *LightTrie { - return &LightTrie{ - // SecureTrie is initialized before first request - id: id, - odr: odr, - db: odr.Database(), + trie *trie.Trie +} + +func (t *odrTrie) TryGet(key []byte) ([]byte, error) { + key = crypto.Keccak256(key) + var res []byte + err := t.do(key, func() (err error) { + res, err = t.trie.TryGet(key) + return err + }) + return res, err +} + +func (t *odrTrie) TryUpdate(key, value []byte) error { + key = crypto.Keccak256(key) + return t.do(key, func() error { + return t.trie.TryDelete(key) + }) +} + +func (t *odrTrie) TryDelete(key []byte) error { + key = crypto.Keccak256(key) + return t.do(key, func() error { + return t.trie.TryDelete(key) + }) +} + +func (t *odrTrie) CommitTo(db trie.DatabaseWriter) (common.Hash, error) { + if t.trie == nil { + return t.id.Root, nil + } + return t.trie.CommitTo(db) +} + +func (t *odrTrie) Hash() common.Hash { + if t.trie == nil { + return t.id.Root } + return t.trie.Hash() +} + +func (t *odrTrie) NodeIterator(startkey []byte) trie.NodeIterator { + return newNodeIterator(t, startkey) } -// retrieveKey retrieves a single key, returns true and stores nodes in local -// database if successful -func (t *LightTrie) retrieveKey(ctx context.Context, key []byte) bool { - r := &TrieRequest{Id: t.id, Key: crypto.Keccak256(key)} - return t.odr.Retrieve(ctx, r) == nil +func (t *odrTrie) GetKey(sha []byte) []byte { + return nil } // do tries and retries to execute a function until it returns with no error or // an error type other than MissingNodeError -func (t *LightTrie) do(ctx context.Context, key []byte, fn func() error) error { - err := fn() - for err != nil { +func (t *odrTrie) do(key []byte, fn func() error) error { + for { + var err error + if t.trie == nil { + t.trie, err = trie.New(t.id.Root, t.db.backend.Database()) + } + if err == nil { + err = fn() + } if _, ok := err.(*trie.MissingNodeError); !ok { return err } - if !t.retrieveKey(ctx, key) { - break + r := &TrieRequest{Id: t.id, Key: key} + if err := t.db.backend.Retrieve(t.db.ctx, r); err != nil { + return fmt.Errorf("can't fetch trie key %x: %v", key, err) } - err = fn() } - return err } -// Get returns the value for key stored in the trie. -// The value bytes must not be modified by the caller. -func (t *LightTrie) Get(ctx context.Context, key []byte) (res []byte, err error) { - err = t.do(ctx, key, func() (err error) { - if t.trie == nil { - t.trie, err = trie.NewSecure(t.id.Root, t.db, 0) - } - if err == nil { - res, err = t.trie.TryGet(key) - } - return +type nodeIterator struct { + trie.NodeIterator + t *odrTrie + err error +} + +func newNodeIterator(t *odrTrie, startkey []byte) trie.NodeIterator { + it := &nodeIterator{t: t} + // Open the actual non-ODR trie if that hasn't happened yet. + if t.trie == nil { + it.do(func() error { + t, err := trie.New(t.id.Root, t.db.backend.Database()) + if err == nil { + it.t.trie = t + } + return err + }) + } + it.do(func() error { + it.NodeIterator = it.t.trie.NodeIterator(startkey) + return it.NodeIterator.Error() }) - return + return it } -// Update associates key with value in the trie. Subsequent calls to -// Get will return value. If value has length zero, any existing value -// is deleted from the trie and calls to Get will return nil. -// -// The value bytes must not be modified by the caller while they are -// stored in the trie. -func (t *LightTrie) Update(ctx context.Context, key, value []byte) (err error) { - err = t.do(ctx, key, func() (err error) { - if t.trie == nil { - t.trie, err = trie.NewSecure(t.id.Root, t.db, 0) - } - if err == nil { - err = t.trie.TryUpdate(key, value) - } - return +func (it *nodeIterator) Next(descend bool) bool { + var ok bool + it.do(func() error { + ok = it.NodeIterator.Next(descend) + return it.NodeIterator.Error() }) - return + return ok } -// Delete removes any existing value for key from the trie. -func (t *LightTrie) Delete(ctx context.Context, key []byte) (err error) { - err = t.do(ctx, key, func() (err error) { - if t.trie == nil { - t.trie, err = trie.NewSecure(t.id.Root, t.db, 0) +// do runs fn and attempts to fill in missing nodes by retrieving. +func (it *nodeIterator) do(fn func() error) { + var lasthash common.Hash + for { + it.err = fn() + missing, ok := it.err.(*trie.MissingNodeError) + if !ok { + return } - if err == nil { - err = t.trie.TryDelete(key) + if missing.NodeHash == lasthash { + it.err = fmt.Errorf("retrieve loop for trie node %x", missing.NodeHash) + return } - return - }) - return + lasthash = missing.NodeHash + r := &TrieRequest{Id: it.t.id, Key: nibblesToKey(missing.Path)} + if it.err = it.t.db.backend.Retrieve(it.t.db.ctx, r); it.err != nil { + return + } + } +} + +func (it *nodeIterator) Error() error { + if it.err != nil { + return it.err + } + return it.NodeIterator.Error() +} + +func nibblesToKey(nib []byte) []byte { + if len(nib) > 0 && nib[len(nib)-1] == 0x10 { + nib = nib[:len(nib)-1] // drop terminator + } + if len(nib)&1 == 1 { + nib = append(nib, 0) // make even + } + key := make([]byte, len(nib)/2) + for bi, ni := 0, 0; ni < len(nib); bi, ni = bi+1, ni+2 { + key[bi] = nib[ni]<<4 | nib[ni+1] + } + return key } diff --git a/light/trie_test.go b/light/trie_test.go new file mode 100644 index 000000000000..9b2cf7c2b123 --- /dev/null +++ b/light/trie_test.go @@ -0,0 +1,83 @@ +// Copyright 2017 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 light + +import ( + "bytes" + "context" + "fmt" + "testing" + + "github.com/davecgh/go-spew/spew" + "github.com/ethereum/go-ethereum/consensus/ethash" + "github.com/ethereum/go-ethereum/core" + "github.com/ethereum/go-ethereum/core/state" + "github.com/ethereum/go-ethereum/core/vm" + "github.com/ethereum/go-ethereum/ethdb" + "github.com/ethereum/go-ethereum/event" + "github.com/ethereum/go-ethereum/params" + "github.com/ethereum/go-ethereum/trie" +) + +func TestNodeIterator(t *testing.T) { + var ( + fulldb, _ = ethdb.NewMemDatabase() + lightdb, _ = ethdb.NewMemDatabase() + gspec = core.Genesis{Alloc: core.GenesisAlloc{testBankAddress: {Balance: testBankFunds}}} + genesis = gspec.MustCommit(fulldb) + ) + gspec.MustCommit(lightdb) + blockchain, _ := core.NewBlockChain(fulldb, params.TestChainConfig, ethash.NewFullFaker(), new(event.TypeMux), vm.Config{}) + gchain, _ := core.GenerateChain(params.TestChainConfig, genesis, fulldb, 4, testChainGen) + if _, err := blockchain.InsertChain(gchain); err != nil { + panic(err) + } + + ctx := context.Background() + odr := &testOdr{sdb: fulldb, ldb: lightdb} + head := blockchain.CurrentHeader() + lightTrie, _ := NewStateDatabase(ctx, head, odr).OpenTrie(head.Root) + fullTrie, _ := state.NewDatabase(fulldb).OpenTrie(head.Root) + if err := diffTries(fullTrie, lightTrie); err != nil { + t.Fatal(err) + } +} + +func diffTries(t1, t2 state.Trie) error { + i1 := trie.NewIterator(t1.NodeIterator(nil)) + i2 := trie.NewIterator(t2.NodeIterator(nil)) + for i1.Next() && i2.Next() { + if !bytes.Equal(i1.Key, i2.Key) { + spew.Dump(i2) + return fmt.Errorf("tries have different keys %x, %x", i1.Key, i2.Key) + } + if !bytes.Equal(i2.Value, i2.Value) { + return fmt.Errorf("tries differ at key %x", i1.Key) + } + } + switch { + case i1.Err != nil: + return fmt.Errorf("full trie iterator error: %v", i1.Err) + case i2.Err != nil: + return fmt.Errorf("light trie iterator error: %v", i1.Err) + case i1.Next(): + return fmt.Errorf("full trie iterator has more k/v pairs") + case i2.Next(): + return fmt.Errorf("light trie iterator has more k/v pairs") + } + return nil +} diff --git a/light/txpool.go b/light/txpool.go index 7276874b8aab..0430b280f61c 100644 --- a/light/txpool.go +++ b/light/txpool.go @@ -24,6 +24,7 @@ import ( "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/core" + "github.com/ethereum/go-ethereum/core/state" "github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/ethdb" "github.com/ethereum/go-ethereum/event" @@ -100,17 +101,18 @@ func NewTxPool(config *params.ChainConfig, eventMux *event.TypeMux, chain *Light } // currentState returns the light state of the current head header -func (pool *TxPool) currentState() *LightState { - return NewLightState(StateTrieID(pool.chain.CurrentHeader()), pool.odr) +func (pool *TxPool) currentState(ctx context.Context) *state.StateDB { + return NewState(ctx, pool.chain.CurrentHeader(), pool.odr) } // GetNonce returns the "pending" nonce of a given address. It always queries // the nonce belonging to the latest header too in order to detect if another // client using the same key sent a transaction. func (pool *TxPool) GetNonce(ctx context.Context, addr common.Address) (uint64, error) { - nonce, err := pool.currentState().GetNonce(ctx, addr) - if err != nil { - return 0, err + state := pool.currentState(ctx) + nonce := state.GetNonce(addr) + if state.Error() != nil { + return 0, state.Error() } sn, ok := pool.nonce[addr] if ok && sn > nonce { @@ -357,13 +359,9 @@ func (pool *TxPool) validateTx(ctx context.Context, tx *types.Transaction) error return core.ErrInvalidSender } // Last but not least check for nonce errors - currentState := pool.currentState() - if n, err := currentState.GetNonce(ctx, from); err == nil { - if n > tx.Nonce() { - return core.ErrNonceTooLow - } - } else { - return err + currentState := pool.currentState(ctx) + if n := currentState.GetNonce(from); n > tx.Nonce() { + return core.ErrNonceTooLow } // Check the transaction doesn't exceed the current @@ -382,12 +380,8 @@ func (pool *TxPool) validateTx(ctx context.Context, tx *types.Transaction) error // Transactor should have enough funds to cover the costs // cost == V + GP * GL - if b, err := currentState.GetBalance(ctx, from); err == nil { - if b.Cmp(tx.Cost()) < 0 { - return core.ErrInsufficientFunds - } - } else { - return err + if b := currentState.GetBalance(from); b.Cmp(tx.Cost()) < 0 { + return core.ErrInsufficientFunds } // Should supply enough intrinsic gas @@ -395,7 +389,7 @@ func (pool *TxPool) validateTx(ctx context.Context, tx *types.Transaction) error return core.ErrIntrinsicGas } - return nil + return currentState.Error() } // add validates a new transaction and sets its state pending if processable. diff --git a/light/vm_env.go b/light/vm_env.go deleted file mode 100644 index 54aa12875b23..000000000000 --- a/light/vm_env.go +++ /dev/null @@ -1,194 +0,0 @@ -// 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 light - -import ( - "context" - "math/big" - - "github.com/ethereum/go-ethereum/common" - "github.com/ethereum/go-ethereum/core/types" - "github.com/ethereum/go-ethereum/crypto" -) - -// VMState is a wrapper for the light state that holds the actual context and -// passes it to any state operation that requires it. -type VMState struct { - ctx context.Context - state *LightState - snapshots []*LightState - err error -} - -func NewVMState(ctx context.Context, state *LightState) *VMState { - return &VMState{ctx: ctx, state: state} -} - -func (s *VMState) Error() error { - return s.err -} - -func (s *VMState) AddLog(log *types.Log) {} - -func (s *VMState) AddPreimage(hash common.Hash, preimage []byte) {} - -// errHandler handles and stores any state error that happens during execution. -func (s *VMState) errHandler(err error) { - if err != nil && s.err == nil { - s.err = err - } -} - -func (self *VMState) Snapshot() int { - self.snapshots = append(self.snapshots, self.state.Copy()) - return len(self.snapshots) - 1 -} - -func (self *VMState) RevertToSnapshot(idx int) { - self.state.Set(self.snapshots[idx]) - self.snapshots = self.snapshots[:idx] -} - -// CreateAccount creates creates a new account object and takes ownership. -func (s *VMState) CreateAccount(addr common.Address) { - _, err := s.state.CreateStateObject(s.ctx, addr) - s.errHandler(err) -} - -// AddBalance adds the given amount to the balance of the specified account -func (s *VMState) AddBalance(addr common.Address, amount *big.Int) { - err := s.state.AddBalance(s.ctx, addr, amount) - s.errHandler(err) -} - -// SubBalance adds the given amount to the balance of the specified account -func (s *VMState) SubBalance(addr common.Address, amount *big.Int) { - err := s.state.SubBalance(s.ctx, addr, amount) - s.errHandler(err) -} - -// ForEachStorage calls a callback function for every key/value pair found -// in the local storage cache. Note that unlike core/state.StateObject, -// light.StateObject only returns cached values and doesn't download the -// entire storage tree. -func (s *VMState) ForEachStorage(addr common.Address, cb func(key, value common.Hash) bool) { - err := s.state.ForEachStorage(s.ctx, addr, cb) - s.errHandler(err) -} - -// GetBalance retrieves the balance from the given address or 0 if the account does -// not exist -func (s *VMState) GetBalance(addr common.Address) *big.Int { - res, err := s.state.GetBalance(s.ctx, addr) - s.errHandler(err) - return res -} - -// GetNonce returns the nonce at the given address or 0 if the account does -// not exist -func (s *VMState) GetNonce(addr common.Address) uint64 { - res, err := s.state.GetNonce(s.ctx, addr) - s.errHandler(err) - return res -} - -// SetNonce sets the nonce of the specified account -func (s *VMState) SetNonce(addr common.Address, nonce uint64) { - err := s.state.SetNonce(s.ctx, addr, nonce) - s.errHandler(err) -} - -// GetCode returns the contract code at the given address or nil if the account -// does not exist -func (s *VMState) GetCode(addr common.Address) []byte { - res, err := s.state.GetCode(s.ctx, addr) - s.errHandler(err) - return res -} - -// GetCodeHash returns the contract code hash at the given address -func (s *VMState) GetCodeHash(addr common.Address) common.Hash { - res, err := s.state.GetCode(s.ctx, addr) - s.errHandler(err) - return crypto.Keccak256Hash(res) -} - -// GetCodeSize returns the contract code size at the given address -func (s *VMState) GetCodeSize(addr common.Address) int { - res, err := s.state.GetCode(s.ctx, addr) - s.errHandler(err) - return len(res) -} - -// SetCode sets the contract code at the specified account -func (s *VMState) SetCode(addr common.Address, code []byte) { - err := s.state.SetCode(s.ctx, addr, code) - s.errHandler(err) -} - -// AddRefund adds an amount to the refund value collected during a vm execution -func (s *VMState) AddRefund(gas *big.Int) { - s.state.AddRefund(gas) -} - -// GetRefund returns the refund value collected during a vm execution -func (s *VMState) GetRefund() *big.Int { - return s.state.GetRefund() -} - -// GetState returns the contract storage value at storage address b from the -// contract address a or common.Hash{} if the account does not exist -func (s *VMState) GetState(a common.Address, b common.Hash) common.Hash { - res, err := s.state.GetState(s.ctx, a, b) - s.errHandler(err) - return res -} - -// SetState sets the storage value at storage address key of the account addr -func (s *VMState) SetState(addr common.Address, key common.Hash, value common.Hash) { - err := s.state.SetState(s.ctx, addr, key, value) - s.errHandler(err) -} - -// Suicide marks an account to be removed and clears its balance -func (s *VMState) Suicide(addr common.Address) bool { - res, err := s.state.Suicide(s.ctx, addr) - s.errHandler(err) - return res -} - -// Exist returns true if an account exists at the given address -func (s *VMState) Exist(addr common.Address) bool { - res, err := s.state.HasAccount(s.ctx, addr) - s.errHandler(err) - return res -} - -// Empty returns true if the account at the given address is considered empty -func (s *VMState) Empty(addr common.Address) bool { - so, err := s.state.GetStateObject(s.ctx, addr) - s.errHandler(err) - return so == nil || so.empty() -} - -// HasSuicided returns true if the given account has been marked for deletion -// or false if the account does not exist -func (s *VMState) HasSuicided(addr common.Address) bool { - res, err := s.state.HasSuicided(s.ctx, addr) - s.errHandler(err) - return res -} diff --git a/miner/worker.go b/miner/worker.go index 8030153904b8..e44514755ab3 100644 --- a/miner/worker.go +++ b/miner/worker.go @@ -274,7 +274,7 @@ func (self *worker) wait() { } go self.mux.Post(core.NewMinedBlockEvent{Block: block}) } else { - work.state.Commit(self.config.IsEIP158(block.Number())) + work.state.CommitTo(self.chainDb, self.config.IsEIP158(block.Number())) stat, err := self.chain.WriteBlock(block) if err != nil { log.Error("Failed writing block to chain", "err", err) diff --git a/tests/block_test_util.go b/tests/block_test_util.go index b9678a77bdcb..24d4672b64df 100644 --- a/tests/block_test_util.go +++ b/tests/block_test_util.go @@ -204,7 +204,7 @@ func runBlockTest(homesteadBlock, daoForkBlock, gasPriceFork *big.Int, test *Blo // InsertPreState populates the given database with the genesis // accounts defined by the test. func (t *BlockTest) InsertPreState(db ethdb.Database) (*state.StateDB, error) { - statedb, err := state.New(common.Hash{}, db) + statedb, err := state.New(common.Hash{}, state.NewDatabase(db)) if err != nil { return nil, err } @@ -232,7 +232,7 @@ func (t *BlockTest) InsertPreState(db ethdb.Database) (*state.StateDB, error) { } } - root, err := statedb.Commit(false) + root, err := statedb.CommitTo(db, false) if err != nil { return nil, fmt.Errorf("error writing state: %v", err) } diff --git a/tests/state_test_util.go b/tests/state_test_util.go index c1892cdccf1a..58acdd488b6e 100644 --- a/tests/state_test_util.go +++ b/tests/state_test_util.go @@ -20,7 +20,6 @@ import ( "bytes" "fmt" "io" - "math/big" "strconv" "strings" "testing" @@ -99,7 +98,7 @@ func benchStateTest(chainConfig *params.ChainConfig, test VmTest, env map[string statedb := makePreState(db, test.Pre) b.StartTimer() - RunState(chainConfig, statedb, env, test.Exec) + RunState(chainConfig, statedb, db, env, test.Exec) } func runStateTests(chainConfig *params.ChainConfig, tests map[string]VmTest, skipTests []string) error { @@ -143,16 +142,9 @@ func runStateTest(chainConfig *params.ChainConfig, test VmTest) error { env["currentTimestamp"] = test.Env.CurrentTimestamp.(string) } - var ( - ret []byte - // gas *big.Int - // err error - logs []*types.Log - ) + ret, logs, root, _ := RunState(chainConfig, statedb, db, env, test.Transaction) - ret, logs, _, _ = RunState(chainConfig, statedb, env, test.Transaction) - - // Compare expected and actual return + // Return value: var rexp []byte if strings.HasPrefix(test.Out, "#") { n, _ := strconv.Atoi(test.Out[1:]) @@ -163,61 +155,43 @@ func runStateTest(chainConfig *params.ChainConfig, test VmTest) error { if !bytes.Equal(rexp, ret) { return fmt.Errorf("return failed. Expected %x, got %x\n", rexp, ret) } - - // check post state + // Post state content: for addr, account := range test.Post { address := common.HexToAddress(addr) if !statedb.Exist(address) { return fmt.Errorf("did not find expected post-state account: %s", addr) } - if balance := statedb.GetBalance(address); balance.Cmp(math.MustParseBig256(account.Balance)) != 0 { return fmt.Errorf("(%x) balance failed. Expected: %v have: %v\n", address[:4], math.MustParseBig256(account.Balance), balance) } - if nonce := statedb.GetNonce(address); nonce != math.MustParseUint64(account.Nonce) { return fmt.Errorf("(%x) nonce failed. Expected: %v have: %v\n", address[:4], account.Nonce, nonce) } - for addr, value := range account.Storage { v := statedb.GetState(address, common.HexToHash(addr)) vexp := common.HexToHash(value) - if v != vexp { return fmt.Errorf("storage failed:\n%x: %s:\nexpected: %x\nhave: %x\n(%v %v)\n", address[:4], addr, vexp, v, vexp.Big(), v.Big()) } } } - - root, _ := statedb.Commit(false) + // Root: if common.HexToHash(test.PostStateRoot) != root { return fmt.Errorf("Post state root error. Expected: %s have: %x", test.PostStateRoot, root) } - - // check logs - if len(test.Logs) > 0 { - if err := checkLogs(test.Logs, logs); err != nil { - return err - } - } - - return nil + // Logs: + return checkLogs(test.Logs, logs) } -func RunState(chainConfig *params.ChainConfig, statedb *state.StateDB, env, tx map[string]string) ([]byte, []*types.Log, *big.Int, error) { +func RunState(chainConfig *params.ChainConfig, statedb *state.StateDB, db ethdb.Database, env, tx map[string]string) ([]byte, []*types.Log, common.Hash, error) { environment, msg := NewEVMEnvironment(false, chainConfig, statedb, env, tx) gaspool := new(core.GasPool).AddGas(math.MustParseBig256(env["currentGasLimit"])) - root, _ := statedb.Commit(false) - statedb.Reset(root) - snapshot := statedb.Snapshot() - - ret, gasUsed, err := core.ApplyMessage(environment, msg, gaspool) + ret, _, err := core.ApplyMessage(environment, msg, gaspool) if err != nil { statedb.RevertToSnapshot(snapshot) } - statedb.Commit(chainConfig.IsEIP158(environment.Context.BlockNumber)) - - return ret, statedb.Logs(), gasUsed, err + root, _ := statedb.CommitTo(db, chainConfig.IsEIP158(environment.Context.BlockNumber)) + return ret, statedb.Logs(), root, err } diff --git a/tests/util.go b/tests/util.go index a3a9a1f6459f..ff02679ec4d4 100644 --- a/tests/util.go +++ b/tests/util.go @@ -48,7 +48,6 @@ func init() { } func checkLogs(tlog []Log, logs []*types.Log) error { - if len(tlog) != len(logs) { return fmt.Errorf("log length mismatch. Expected %d, got %d", len(tlog), len(logs)) } else { @@ -106,10 +105,14 @@ func (self Log) Topics() [][]byte { } func makePreState(db ethdb.Database, accounts map[string]Account) *state.StateDB { - statedb, _ := state.New(common.Hash{}, db) + sdb := state.NewDatabase(db) + statedb, _ := state.New(common.Hash{}, sdb) for addr, account := range accounts { insertAccount(statedb, addr, account) } + // Commit and re-open to start with a clean state. + root, _ := statedb.CommitTo(db, false) + statedb, _ = state.New(root, sdb) return statedb } diff --git a/trie/proof.go b/trie/proof.go index 1f8f76b1b74b..298f648c4b80 100644 --- a/trie/proof.go +++ b/trie/proof.go @@ -125,7 +125,7 @@ func VerifyProof(rootHash common.Hash, key []byte, proof []rlp.RawValue) (value } func get(tn node, key []byte) ([]byte, node) { - for len(key) > 0 { + for { switch n := tn.(type) { case *shortNode: if len(key) < len(n.Key) || !bytes.Equal(n.Key, key[:len(n.Key)]) { @@ -140,9 +140,10 @@ func get(tn node, key []byte) ([]byte, node) { return key, n case nil: return key, nil + case valueNode: + return nil, n default: panic(fmt.Sprintf("%T: invalid node: %v", tn, tn)) } } - return nil, tn.(valueNode) } diff --git a/trie/secure_trie.go b/trie/secure_trie.go index 37d1d4b092cd..20c303f31c3d 100644 --- a/trie/secure_trie.go +++ b/trie/secure_trie.go @@ -156,6 +156,11 @@ func (t *SecureTrie) Root() []byte { return t.trie.Root() } +func (t *SecureTrie) Copy() *SecureTrie { + cpy := *t + return &cpy +} + // NodeIterator returns an iterator that returns nodes of the underlying trie. Iteration // starts at the key after the given start key. func (t *SecureTrie) NodeIterator(start []byte) NodeIterator {