func ExportChain(blockchain *core.BlockChain, fn string) error {
glog.Infoln("Exporting blockchain to", fn)
fh, err := os.OpenFile(fn, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, os.ModePerm)
if err != nil {
return err
}
defer fh.Close()
if err := blockchain.Export(fh); err != nil {
return err
}
glog.Infoln("Exported blockchain to", fn)
return nil
}
func ExportAppendChain(blockchain *core.BlockChain, fn string, first uint64, last uint64) error {
glog.Infoln("Exporting blockchain to", fn)
// TODO verify mode perms
fh, err := os.OpenFile(fn, os.O_CREATE|os.O_APPEND|os.O_WRONLY, os.ModePerm)
if err != nil {
return err
}
defer fh.Close()
if err := blockchain.ExportN(fh, first, last); err != nil {
return err
}
glog.Infoln("Exported blockchain to", fn)
return nil
}
func (self *worker) push(work *Work) {
if atomic.LoadInt32(&self.mining) == 1 {
if core.Canary(work.state) {
glog.Infoln("Toxicity levels rising to deadly levels. Your canary has died. You can go back or continue down the mineshaft --more--")
glog.Infoln("You turn back and abort mining")
return
}
// push new work to agents
for agent := range self.agents {
atomic.AddInt32(&self.atWork, 1)
if agent.Work() != nil {
agent.Work() <- work
}
}
}
}
// ReportBlock reports the block to the block reporting tool found at
// badblocks.ethdev.com
func ReportBlock(block *types.Block, err error) {
if DisableBadBlockReporting {
return
}
const url = "https://badblocks.ethdev.com"
blockRlp, _ := rlp.EncodeToBytes(block)
data := map[string]interface{}{
"block": common.Bytes2Hex(blockRlp),
"errortype": err.Error(),
"hints": map[string]interface{}{
"receipts": "NYI",
"vmtrace": "NYI",
},
}
jsonStr, _ := json.Marshal(map[string]interface{}{"method": "eth_badBlock", "params": []interface{}{data}, "id": "1", "jsonrpc": "2.0"})
req, err := http.NewRequest("POST", url, bytes.NewBuffer(jsonStr))
req.Header.Set("Content-Type", "application/json")
client := &http.Client{}
resp, err := client.Do(req)
if err != nil {
glog.V(logger.Error).Infoln("POST err:", err)
return
}
defer resp.Body.Close()
if glog.V(logger.Debug) {
glog.Infoln("response Status:", resp.Status)
glog.Infoln("response Headers:", resp.Header)
body, _ := ioutil.ReadAll(resp.Body)
glog.Infoln("response Body:", string(body))
}
}
// VerifyUncles verifies the given block's uncles and applies the Ethereum
// consensus rules to the various block headers included; it will return an
// error if any of the included uncle headers were invalid. It returns an error
// if the validation failed.
func (v *BlockValidator) VerifyUncles(block, parent *types.Block) error {
// validate that there at most 2 uncles included in this block
if len(block.Uncles()) > 2 {
return ValidationError("Block can only contain maximum 2 uncles (contained %v)", len(block.Uncles()))
}
uncles := set.New()
ancestors := make(map[common.Hash]*types.Block)
for _, ancestor := range v.bc.GetBlocksFromHash(block.ParentHash(), 7) {
ancestors[ancestor.Hash()] = ancestor
// Include ancestors uncles in the uncle set. Uncles must be unique.
for _, uncle := range ancestor.Uncles() {
uncles.Add(uncle.Hash())
}
}
ancestors[block.Hash()] = block
uncles.Add(block.Hash())
for i, uncle := range block.Uncles() {
hash := uncle.Hash()
if uncles.Has(hash) {
// Error not unique
return UncleError("uncle[%d](%x) not unique", i, hash[:4])
}
uncles.Add(hash)
if ancestors[hash] != nil {
branch := fmt.Sprintf(" O - %x\n |\n", block.Hash())
for h := range ancestors {
branch += fmt.Sprintf(" O - %x\n |\n", h)
}
glog.Infoln(branch)
return UncleError("uncle[%d](%x) is ancestor", i, hash[:4])
}
if ancestors[uncle.ParentHash] == nil || uncle.ParentHash == parent.Hash() {
return UncleError("uncle[%d](%x)'s parent is not ancestor (%x)", i, hash[:4], uncle.ParentHash[0:4])
}
if err := ValidateHeader(v.Pow, uncle, ancestors[uncle.ParentHash].Header(), true, true); err != nil {
return ValidationError(fmt.Sprintf("uncle[%d](%x) header invalid: %v", i, hash[:4], err))
}
}
return nil
}
func (self *LDBDatabase) Close() {
// Stop the metrics collection to avoid internal database races
self.quitLock.Lock()
defer self.quitLock.Unlock()
if self.quitChan != nil {
errc := make(chan error)
self.quitChan <- errc
if err := <-errc; err != nil {
glog.V(logger.Error).Infof("metrics failure in '%s': %v\n", self.fn, err)
}
}
err := self.db.Close()
if glog.V(logger.Error) {
if err == nil {
glog.Infoln("closed db:", self.fn)
} else {
glog.Errorf("error closing db %s: %v", self.fn, err)
}
}
}
func ImportChain(chain *core.BlockChain, fn string) error {
// Watch for Ctrl-C while the import is running.
// If a signal is received, the import will stop at the next batch.
interrupt := make(chan os.Signal, 1)
stop := make(chan struct{})
signal.Notify(interrupt, os.Interrupt)
defer signal.Stop(interrupt)
defer close(interrupt)
go func() {
if _, ok := <-interrupt; ok {
glog.Info("caught interrupt during import, will stop at next batch")
}
close(stop)
}()
checkInterrupt := func() bool {
select {
case <-stop:
return true
default:
return false
}
}
glog.Infoln("Importing blockchain", fn)
fh, err := os.Open(fn)
if err != nil {
return err
}
defer fh.Close()
stream := rlp.NewStream(fh, 0)
// Run actual the import.
blocks := make(types.Blocks, importBatchSize)
n := 0
for batch := 0; ; batch++ {
// Load a batch of RLP blocks.
if checkInterrupt() {
return fmt.Errorf("interrupted")
}
i := 0
for ; i < importBatchSize; i++ {
var b types.Block
if err := stream.Decode(&b); err == io.EOF {
break
} else if err != nil {
return fmt.Errorf("at block %d: %v", n, err)
}
// don't import first block
if b.NumberU64() == 0 {
i--
continue
}
blocks[i] = &b
n++
}
if i == 0 {
break
}
// Import the batch.
if checkInterrupt() {
return fmt.Errorf("interrupted")
}
if hasAllBlocks(chain, blocks[:i]) {
glog.Infof("skipping batch %d, all blocks present [%x / %x]",
batch, blocks[0].Hash().Bytes()[:4], blocks[i-1].Hash().Bytes()[:4])
continue
}
if _, err := chain.InsertChain(blocks[:i]); err != nil {
return fmt.Errorf("invalid block %d: %v", n, err)
}
}
return nil
}