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Use uint64 for block header timestamp

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This commit is contained in:
Gustav Simonsson 2015-06-30 09:13:16 +02:00
parent be935bff84
commit 4c490db6af
12 changed files with 24 additions and 25 deletions
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6
cmd/evm/main.go
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@ -106,7 +106,7 @@ type VMEnv struct {
depth int
Gas *big.Int
time int64
time uint64
logs []vm.StructLog
}
@ -115,7 +115,7 @@ func NewEnv(state *state.StateDB, transactor common.Address, value *big.Int) *VM
state: state,
transactor: &transactor,
value: value,
time: time.Now().Unix(),
time: uint64(time.Now().Unix()),
}
}
@ -123,7 +123,7 @@ func (self *VMEnv) State() *state.StateDB { return self.state }
func (self *VMEnv) Origin() common.Address { return *self.transactor }
func (self *VMEnv) BlockNumber() *big.Int { return common.Big0 }
func (self *VMEnv) Coinbase() common.Address { return *self.transactor }
func (self *VMEnv) Time() int64 { return self.time }
func (self *VMEnv) Time() uint64 { return self.time }
func (self *VMEnv) Difficulty() *big.Int { return common.Big1 }
func (self *VMEnv) BlockHash() []byte { return make([]byte, 32) }
func (self *VMEnv) Value() *big.Int { return self.value }

15
core/block_processor.go
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@ -362,6 +362,13 @@ func ValidateHeader(pow pow.PoW, block *types.Header, parent *types.Block, check
return fmt.Errorf("Block extra data too long (%d)", len(block.Extra))
}
if block.Time > uint64(time.Now().Unix()) {
return BlockFutureErr
}
if block.Time <= parent.Time() {
return BlockEqualTSErr
}
expd := CalcDifficulty(int64(block.Time), int64(parent.Time()), parent.Difficulty())
if expd.Cmp(block.Difficulty) != 0 {
return fmt.Errorf("Difficulty check failed for block %v, %v", block.Difficulty, expd)
@ -377,20 +384,12 @@ func ValidateHeader(pow pow.PoW, block *types.Header, parent *types.Block, check
return fmt.Errorf("GasLimit check failed for block %v (%v > %v)", block.GasLimit, a, b)
}
if int64(block.Time) > time.Now().Unix() {
return BlockFutureErr
}
num := parent.Number()
num.Sub(block.Number, num)
if num.Cmp(big.NewInt(1)) != 0 {
return BlockNumberErr
}
if block.Time <= uint64(parent.Time()) {
return BlockEqualTSErr //ValidationError("Block timestamp equal or less than previous block (%v - %v)", block.Time, parent.Time)
}
if checkPow {
// Verify the nonce of the block. Return an error if it's not valid
if !pow.Verify(types.NewBlockWithHeader(block)) {

2
core/chain_makers.go
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@ -155,7 +155,7 @@ func makeHeader(parent *types.Block, state *state.StateDB) *types.Header {
Root: state.Root(),
ParentHash: parent.Hash(),
Coinbase: parent.Coinbase(),
Difficulty: CalcDifficulty(time, parent.Time(), parent.Difficulty()),
Difficulty: CalcDifficulty(int64(time), int64(parent.Time()), parent.Difficulty()),
GasLimit: CalcGasLimit(parent),
GasUsed: new(big.Int),
Number: new(big.Int).Add(parent.Number(), common.Big1),

2
core/chain_manager.go
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@ -658,7 +658,7 @@ func (self *ChainManager) InsertChain(chain types.Blocks) (int, error) {
// Allow up to MaxFuture second in the future blocks. If this limit
// is exceeded the chain is discarded and processed at a later time
// if given.
if max := time.Now().Unix() + maxTimeFutureBlocks; block.Time() > max {
if max := time.Now().Unix() + maxTimeFutureBlocks; int64(block.Time()) > max {
return i, fmt.Errorf("%v: BlockFutureErr, %v > %v", BlockFutureErr, block.Time(), max)
}

2
core/types/block.go
View File

@ -290,7 +290,7 @@ func (b *Block) MixDigest() common.Hash { return b.header.MixDigest }
func (b *Block) Nonce() uint64 { return binary.BigEndian.Uint64(b.header.Nonce[:]) }
func (b *Block) Bloom() Bloom { return b.header.Bloom }
func (b *Block) Coinbase() common.Address { return b.header.Coinbase }
func (b *Block) Time() int64 { return int64(b.header.Time) }
func (b *Block) Time() uint64 { return b.header.Time }
func (b *Block) Root() common.Hash { return b.header.Root }
func (b *Block) ParentHash() common.Hash { return b.header.ParentHash }
func (b *Block) TxHash() common.Hash { return b.header.TxHash }

2
core/types/block_test.go
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@ -31,7 +31,7 @@ func TestBlockEncoding(t *testing.T) {
check("Root", block.Root(), common.HexToHash("ef1552a40b7165c3cd773806b9e0c165b75356e0314bf0706f279c729f51e017"))
check("Hash", block.Hash(), common.HexToHash("0a5843ac1cb04865017cb35a57b50b07084e5fcee39b5acadade33149f4fff9e"))
check("Nonce", block.Nonce(), uint64(0xa13a5a8c8f2bb1c4))
check("Time", block.Time(), int64(1426516743))
check("Time", block.Time(), uint64(1426516743))
check("Size", block.Size(), common.StorageSize(len(blockEnc)))
tx1 := NewTransaction(0, common.HexToAddress("095e7baea6a6c7c4c2dfeb977efac326af552d87"), big.NewInt(10), big.NewInt(50000), big.NewInt(10), nil)

2
core/vm/environment.go
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@ -17,7 +17,7 @@ type Environment interface {
BlockNumber() *big.Int
GetHash(n uint64) common.Hash
Coinbase() common.Address
Time() int64
Time() uint64
Difficulty() *big.Int
GasLimit() *big.Int
Transfer(from, to Account, amount *big.Int) error

2
core/vm/vm.go
View File

@ -444,7 +444,7 @@ func (self *Vm) Run(context *Context, input []byte) (ret []byte, err error) {
case TIMESTAMP:
time := self.env.Time()
stack.push(big.NewInt(time))
stack.push(new(big.Int).SetUint64(time))
case NUMBER:
number := self.env.BlockNumber()

2
core/vm_env.go
View File

@ -33,7 +33,7 @@ func NewEnv(state *state.StateDB, chain *ChainManager, msg Message, header *type
func (self *VMEnv) Origin() common.Address { f, _ := self.msg.From(); return f }
func (self *VMEnv) BlockNumber() *big.Int { return self.header.Number }
func (self *VMEnv) Coinbase() common.Address { return self.header.Coinbase }
func (self *VMEnv) Time() int64 { return int64(self.header.Time) }
func (self *VMEnv) Time() uint64 { return self.header.Time }
func (self *VMEnv) Difficulty() *big.Int { return self.header.Difficulty }
func (self *VMEnv) GasLimit() *big.Int { return self.header.GasLimit }
func (self *VMEnv) Value() *big.Int { return self.msg.Value() }

6
miner/worker.go
View File

@ -368,8 +368,8 @@ func (self *worker) commitNewWork() {
tstart := time.Now()
parent := self.chain.CurrentBlock()
tstamp := tstart.Unix()
if tstamp <= parent.Time() {
tstamp = parent.Time() + 1
if tstamp <= int64(parent.Time()) {
tstamp = int64(parent.Time()) + 1
}
// this will ensure we're not going off too far in the future
if now := time.Now().Unix(); tstamp > now+4 {
@ -382,7 +382,7 @@ func (self *worker) commitNewWork() {
header := &types.Header{
ParentHash: parent.Hash(),
Number: num.Add(num, common.Big1),
Difficulty: core.CalcDifficulty(tstamp, parent.Time(), parent.Difficulty()),
Difficulty: core.CalcDifficulty(int64(tstamp), int64(parent.Time()), parent.Difficulty()),
GasLimit: core.CalcGasLimit(parent),
GasUsed: new(big.Int),
Coinbase: self.coinbase,

6
tests/util.go
View File

@ -120,7 +120,7 @@ type Env struct {
coinbase common.Address
number *big.Int
time int64
time uint64
difficulty *big.Int
gasLimit *big.Int
@ -150,7 +150,7 @@ func NewEnvFromMap(state *state.StateDB, envValues map[string]string, exeValues
//env.parent = common.Hex2Bytes(envValues["previousHash"])
env.coinbase = common.HexToAddress(envValues["currentCoinbase"])
env.number = common.Big(envValues["currentNumber"])
env.time = common.Big(envValues["currentTimestamp"]).Int64()
env.time = common.Big(envValues["currentTimestamp"]).Uint64()
env.difficulty = common.Big(envValues["currentDifficulty"])
env.gasLimit = common.Big(envValues["currentGasLimit"])
env.Gas = new(big.Int)
@ -163,7 +163,7 @@ func (self *Env) BlockNumber() *big.Int { return self.number }
//func (self *Env) PrevHash() []byte { return self.parent }
func (self *Env) Coinbase() common.Address { return self.coinbase }
func (self *Env) Time() int64 { return self.time }
func (self *Env) Time() uint64 { return self.time }
func (self *Env) Difficulty() *big.Int { return self.difficulty }
func (self *Env) State() *state.StateDB { return self.state }
func (self *Env) GasLimit() *big.Int { return self.gasLimit }

2
xeth/types.go
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@ -60,7 +60,7 @@ type Block struct {
Hash string `json:"hash"`
Transactions *common.List `json:"transactions"`
Uncles *common.List `json:"uncles"`
Time int64 `json:"time"`
Time uint64 `json:"time"`
Coinbase string `json:"coinbase"`
Name string `json:"name"`
GasLimit string `json:"gasLimit"`