From 24f2b2afc3a848190822c382e6aa31c8ab120f07 Mon Sep 17 00:00:00 2001 From: obscuren Date: Wed, 19 Feb 2014 11:35:17 +0100 Subject: Running contracts fixed --- ethchain/block.go | 53 +++++++++++++++++++++++++----- ethchain/block_manager.go | 35 +++++++++++++------- ethchain/block_manager_test.go | 74 ++++++++---------------------------------- ethchain/stack.go | 9 ++++- ethchain/transaction.go | 5 ++- ethchain/transaction_test.go | 16 ++++----- ethereum.go | 2 +- ethutil/big.go | 6 ++++ ethutil/config.go | 14 ++++---- ethutil/trie.go | 4 +++ 10 files changed, 120 insertions(+), 98 deletions(-) diff --git a/ethchain/block.go b/ethchain/block.go index 34ddf9fec..ae654b7d8 100644 --- a/ethchain/block.go +++ b/ethchain/block.go @@ -46,6 +46,8 @@ type Block struct { // List of transactions and/or contracts transactions []*Transaction TxSha []byte + + contractStates map[string]*ethutil.Trie } // New block takes a raw encoded string @@ -79,14 +81,15 @@ func CreateBlock(root interface{}, block := &Block{ // Slice of transactions to include in this block - transactions: txes, - PrevHash: prevHash, - Coinbase: base, - Difficulty: Difficulty, - Nonce: Nonce, - Time: time.Now().Unix(), - Extra: extra, - UncleSha: EmptyShaList, + transactions: txes, + PrevHash: prevHash, + Coinbase: base, + Difficulty: Difficulty, + Nonce: Nonce, + Time: time.Now().Unix(), + Extra: extra, + UncleSha: EmptyShaList, + contractStates: make(map[string]*ethutil.Trie), } block.SetTransactions(txes) block.SetUncles([]*Block{}) @@ -131,6 +134,13 @@ func (block *Block) GetContract(addr []byte) *Contract { contract := &Contract{} contract.RlpDecode([]byte(data)) + cachedState := block.contractStates[string(addr)] + if cachedState != nil { + contract.state = cachedState + } else { + block.contractStates[string(addr)] = contract.state + } + return contract } func (block *Block) UpdateContract(addr []byte, contract *Contract) { @@ -190,6 +200,25 @@ func (block *Block) BlockInfo() BlockInfo { return bi } +// Sync the block's state and contract respectively +func (block *Block) Sync() { + // Sync all contracts currently in cache + for _, val := range block.contractStates { + val.Sync() + } + // Sync the block state itself + block.state.Sync() +} + +func (block *Block) Undo() { + // Sync all contracts currently in cache + for _, val := range block.contractStates { + val.Undo() + } + // Sync the block state itself + block.state.Undo() +} + func (block *Block) MakeContract(tx *Transaction) { // Create contract if there's no recipient if tx.IsContract() { @@ -199,9 +228,14 @@ func (block *Block) MakeContract(tx *Transaction) { contract := NewContract(value, []byte("")) block.state.Update(string(addr), string(contract.RlpEncode())) for i, val := range tx.Data { - contract.state.Update(string(ethutil.NumberToBytes(uint64(i), 32)), val) + if len(val) > 0 { + bytNum := ethutil.BigToBytes(big.NewInt(int64(i)), 256) + contract.state.Update(string(bytNum), val) + } } block.UpdateContract(addr, contract) + + block.contractStates[string(addr)] = contract.state } } @@ -288,6 +322,7 @@ func (block *Block) RlpValueDecode(decoder *ethutil.Value) { block.Time = int64(header.Get(6).BigInt().Uint64()) block.Extra = header.Get(7).Str() block.Nonce = header.Get(8).Bytes() + block.contractStates = make(map[string]*ethutil.Trie) // Tx list might be empty if this is an uncle. Uncles only have their // header set. diff --git a/ethchain/block_manager.go b/ethchain/block_manager.go index 4e72f51ba..33df338ff 100644 --- a/ethchain/block_manager.go +++ b/ethchain/block_manager.go @@ -107,7 +107,7 @@ func (bm *BlockManager) ProcessBlock(block *Block) error { // we don't want to undo but since undo only happens on dirty // nodes this won't happen because Commit would have been called // before that. - defer bm.bc.CurrentBlock.State().Undo() + defer bm.bc.CurrentBlock.Undo() hash := block.Hash() @@ -142,7 +142,7 @@ func (bm *BlockManager) ProcessBlock(block *Block) error { // Calculate the new total difficulty and sync back to the db if bm.CalculateTD(block) { // Sync the current block's state to the database and cancelling out the deferred Undo - bm.bc.CurrentBlock.State().Sync() + bm.bc.CurrentBlock.Sync() // Add the block to the chain bm.bc.Add(block) @@ -280,11 +280,13 @@ func (bm *BlockManager) Stop() { func (bm *BlockManager) ProcessContract(tx *Transaction, block *Block) { // Recovering function in case the VM had any errors - defer func() { - if r := recover(); r != nil { - fmt.Println("Recovered from VM execution with err =", r) - } - }() + /* + defer func() { + if r := recover(); r != nil { + fmt.Println("Recovered from VM execution with err =", r) + } + }() + */ // Process contract bm.ProcContract(tx, block, func(opType OpType) bool { @@ -305,6 +307,7 @@ func (bm *BlockManager) ProcContract(tx *Transaction, block *Block, cb TxCallbac blockInfo := bm.bc.BlockInfo(block) contract := block.GetContract(tx.Hash()) + if contract == nil { fmt.Println("Contract not found") return @@ -313,7 +316,7 @@ func (bm *BlockManager) ProcContract(tx *Transaction, block *Block, cb TxCallbac Pow256 := ethutil.BigPow(2, 256) if ethutil.Config.Debug { - fmt.Printf("# op arg\n") + fmt.Printf("# op\n") } out: for { @@ -321,9 +324,11 @@ out: base := new(big.Int) // XXX Should Instr return big int slice instead of string slice? // Get the next instruction from the contract - //op, _, _ := Instr(contract.state.Get(string(Encode(uint32(pc))))) - nb := ethutil.NumberToBytes(uint64(pc), 32) - o, _, _ := ethutil.Instr(contract.State().Get(string(nb))) + nb := ethutil.BigToBytes(big.NewInt(int64(pc)), 256) + r := contract.State().Get(string(nb)) + v := ethutil.NewValueFromBytes([]byte(r)) + //fmt.Printf("%x = %d, %v %x\n", r, len(r), v, nb) + o := v.Uint() op := OpCode(o) if !cb(0) { @@ -575,7 +580,10 @@ out: case oSSTORE: // Store Y at index X x, y := bm.stack.Popn() - contract.State().Update(x.String(), string(ethutil.Encode(y))) + idx := ethutil.BigToBytes(x, 256) + val := ethutil.NewValue(y) + //fmt.Printf("STORING VALUE: %v @ %v\n", val.BigInt(), ethutil.BigD(idx)) + contract.State().Update(string(idx), string(val.Encode())) case oJMP: x := int(bm.stack.Pop().Uint64()) // Set pc to x - 1 (minus one so the incrementing at the end won't effect it) @@ -617,7 +625,10 @@ out: bm.TransactionPool.QueueTransaction(tx) case oSUICIDE: //addr := bm.stack.Pop() + default: + fmt.Println("Invalid OPCODE", op) } + //bm.stack.Print() pc++ } } diff --git a/ethchain/block_manager_test.go b/ethchain/block_manager_test.go index 502c50b97..ae29e2e25 100644 --- a/ethchain/block_manager_test.go +++ b/ethchain/block_manager_test.go @@ -1,75 +1,29 @@ package ethchain -/* import ( _ "fmt" + "github.com/ethereum/eth-go/ethdb" + "github.com/ethereum/eth-go/ethutil" + "math/big" "testing" ) func TestVm(t *testing.T) { InitFees() + ethutil.ReadConfig("") - db, _ := NewMemDatabase() - Db = db + db, _ := ethdb.NewMemDatabase() + ethutil.Config.Db = db + bm := NewBlockManager(nil) - ctrct := NewTransaction("", 200000000, []string{ - "PUSH", "1a2f2e", - "PUSH", "hallo", - "POP", // POP hallo - "PUSH", "3", - "LOAD", // Load hallo back on the stack - - "PUSH", "1", - "PUSH", "2", - "ADD", - - "PUSH", "2", - "PUSH", "1", - "SUB", - - "PUSH", "100000000000000000000000", - "PUSH", "10000000000000", - "SDIV", - - "PUSH", "105", - "PUSH", "200", - "MOD", - - "PUSH", "100000000000000000000000", - "PUSH", "10000000000000", - "SMOD", - - "PUSH", "5", - "PUSH", "10", - "LT", - - "PUSH", "5", - "PUSH", "5", - "LE", - - "PUSH", "50", - "PUSH", "5", - "GT", - - "PUSH", "5", - "PUSH", "5", - "GE", - - "PUSH", "10", - "PUSH", "10", - "NOT", - - "MYADDRESS", - "TXSENDER", + block := bm.bc.genesisBlock + ctrct := NewTransaction(ContractAddr, big.NewInt(200000000), []string{ + "PUSH", + "1", + "PUSH", + "2", "STOP", }) - tx := NewTransaction("1e8a42ea8cce13", 100, []string{}) - - block := CreateBlock("", 0, "", "c014ba53", 0, 0, "", []*Transaction{ctrct, tx}) - db.Put(block.Hash(), block.RlpEncode()) - - bm := NewBlockManager() - bm.ProcessBlock(block) + bm.ApplyTransactions(block, []*Transaction{ctrct}) } -*/ diff --git a/ethchain/stack.go b/ethchain/stack.go index c80d01e5c..02834bd78 100644 --- a/ethchain/stack.go +++ b/ethchain/stack.go @@ -163,5 +163,12 @@ func (st *Stack) Push(d *big.Int) { st.data = append(st.data, d) } func (st *Stack) Print() { - fmt.Println(st.data) + fmt.Println("# val (STACK)") + if len(st.data) > 0 { + for i, val := range st.data { + fmt.Printf("%-3d %v\n", i, val) + } + } else { + fmt.Println("-- empty --") + } } diff --git a/ethchain/transaction.go b/ethchain/transaction.go index 1a9258201..46f5e7e4c 100644 --- a/ethchain/transaction.go +++ b/ethchain/transaction.go @@ -1,11 +1,14 @@ package ethchain import ( + "bytes" "github.com/ethereum/eth-go/ethutil" "github.com/obscuren/secp256k1-go" "math/big" ) +var ContractAddr = []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} + type Transaction struct { Nonce uint64 Recipient []byte @@ -65,7 +68,7 @@ func (tx *Transaction) Hash() []byte { } func (tx *Transaction) IsContract() bool { - return len(tx.Recipient) == 0 + return bytes.Compare(tx.Recipient, ContractAddr) == 0 } func (tx *Transaction) Signature(key []byte) []byte { diff --git a/ethchain/transaction_test.go b/ethchain/transaction_test.go index c9090b83d..a49768aea 100644 --- a/ethchain/transaction_test.go +++ b/ethchain/transaction_test.go @@ -2,8 +2,6 @@ package ethchain import ( "encoding/hex" - "fmt" - "github.com/ethereum/eth-go/ethutil" "math/big" "testing" ) @@ -42,13 +40,15 @@ func TestAddressRetrieval2(t *testing.T) { tx.Sign(key) //data, _ := hex.DecodeString("f85d8094944400f4b88ac9589a0f17ed4671da26bddb668b8203e8c01ca0363b2a410de00bc89be40f468d16e70e543b72191fbd8a684a7c5bef51dc451fa02d8ecf40b68f9c64ed623f6ee24c9c878943b812e1e76bd73ccb2bfef65579e7") //tx := NewTransactionFromData(data) - fmt.Println(tx.RlpValue()) + /* + fmt.Println(tx.RlpValue()) - fmt.Printf("rlp %x\n", tx.RlpEncode()) - fmt.Printf("sha rlp %x\n", tx.Hash()) + fmt.Printf("rlp %x\n", tx.RlpEncode()) + fmt.Printf("sha rlp %x\n", tx.Hash()) - //tx.Sign(key) + //tx.Sign(key) - fmt.Printf("hex tx key %x\n", tx.PublicKey()) - fmt.Printf("seder %x\n", tx.Sender()) + fmt.Printf("hex tx key %x\n", tx.PublicKey()) + fmt.Printf("seder %x\n", tx.Sender()) + */ } diff --git a/ethereum.go b/ethereum.go index c54303795..e3038cbf9 100644 --- a/ethereum.go +++ b/ethereum.go @@ -252,7 +252,7 @@ func (s *Ethereum) Start() { if ethutil.Config.Seed { log.Println("Seeding") // Testnet seed bootstrapping - resp, err := http.Get("http://www.ethereum.org/servers.poc2.txt") + resp, err := http.Get("http://www.ethereum.org/servers.poc3.txt") if err != nil { log.Println("Fetching seed failed:", err) return diff --git a/ethutil/big.go b/ethutil/big.go index 979078bef..c41d63add 100644 --- a/ethutil/big.go +++ b/ethutil/big.go @@ -35,3 +35,9 @@ func BigD(data []byte) *big.Int { return n } + +func BigToBytes(num *big.Int, base int) []byte { + ret := make([]byte, base/8) + + return append(ret[:len(ret)-len(num.Bytes())], num.Bytes()...) +} diff --git a/ethutil/config.go b/ethutil/config.go index df1772d81..70553fb5b 100644 --- a/ethutil/config.go +++ b/ethutil/config.go @@ -34,12 +34,14 @@ func ReadConfig(base string) *config { usr, _ := user.Current() path := path.Join(usr.HomeDir, base) - //Check if the logging directory already exists, create it if not - _, err := os.Stat(path) - if err != nil { - if os.IsNotExist(err) { - log.Printf("Debug logging directory %s doesn't exist, creating it", path) - os.Mkdir(path, 0777) + if len(base) > 0 { + //Check if the logging directory already exists, create it if not + _, err := os.Stat(path) + if err != nil { + if os.IsNotExist(err) { + log.Printf("Debug logging directory %s doesn't exist, creating it", path) + os.Mkdir(path, 0777) + } } } diff --git a/ethutil/trie.go b/ethutil/trie.go index 95abca602..c25bd80cb 100644 --- a/ethutil/trie.go +++ b/ethutil/trie.go @@ -119,6 +119,10 @@ func (t *Trie) Undo() { t.Root = t.prevRoot } +func (t *Trie) Cache() *Cache { + return t.cache +} + /* * Public (query) interface functions */ -- cgit v1.2.3