本文整理汇总了Golang中github.com/ethereum/go-ethereum/core.ChainManager类的典型用法代码示例。如果您正苦于以下问题:Golang ChainManager类的具体用法?Golang ChainManager怎么用?Golang ChainManager使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了ChainManager类的9个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的Golang代码示例。
示例1: TryBlocksInsert
/* See https://github.com/ethereum/tests/wiki/Blockchain-Tests-II
Whether a block is valid or not is a bit subtle, it's defined by presence of
blockHeader, transactions and uncleHeaders fields. If they are missing, the block is
invalid and we must verify that we do not accept it.
Since some tests mix valid and invalid blocks we need to check this for every block.
If a block is invalid it does not necessarily fail the test, if it's invalidness is
expected we are expected to ignore it and continue processing and then validate the
post state.
*/
func (t *BlockTest) TryBlocksInsert(chainManager *core.ChainManager) ([]btBlock, error) {
validBlocks := make([]btBlock, 0)
// insert the test blocks, which will execute all transactions
for _, b := range t.Json.Blocks {
cb, err := mustConvertBlock(b)
if err != nil {
if b.BlockHeader == nil {
continue // OK - block is supposed to be invalid, continue with next block
} else {
return nil, fmt.Errorf("Block RLP decoding failed when expected to succeed: %v", err)
}
}
// RLP decoding worked, try to insert into chain:
_, err = chainManager.InsertChain(types.Blocks{cb})
if err != nil {
if b.BlockHeader == nil {
continue // OK - block is supposed to be invalid, continue with next block
} else {
return nil, fmt.Errorf("Block insertion into chain failed: %v", err)
}
}
if b.BlockHeader == nil {
return nil, fmt.Errorf("Block insertion should have failed")
}
// validate RLP decoding by checking all values against test file JSON
if err = validateHeader(b.BlockHeader, cb.Header()); err != nil {
return nil, fmt.Errorf("Deserialised block header validation failed: %v", err)
}
validBlocks = append(validBlocks, b)
}
return validBlocks, nil
}
开发者ID:NikonMcFly,项目名称:go-ethereum,代码行数:45,代码来源:block_test_util.go
示例2: TryBlocksInsert
/* See https://github.com/ethereum/tests/wiki/Blockchain-Tests-II
Whether a block is valid or not is a bit subtle, it's defined by presence of
blockHeader, transactions and uncleHeaders fields. If they are missing, the block is
invalid and we must verify that we do not accept it.
Since some tests mix valid and invalid blocks we need to check this for every block.
If a block is invalid it does not necessarily fail the test, if it's invalidness is
expected we are expected to ignore it and continue processing and then validate the
post state.
*/
func (t *BlockTest) TryBlocksInsert(chainManager *core.ChainManager) error {
// insert the test blocks, which will execute all transactions
for _, b := range t.Json.Blocks {
cb, err := mustConvertBlock(b)
if err != nil {
if b.BlockHeader == nil {
continue // OK - block is supposed to be invalid, continue with next block
} else {
return fmt.Errorf("Block RLP decoding failed when expected to succeed: %v", err)
}
}
// RLP decoding worked, try to insert into chain:
_, err = chainManager.InsertChain(types.Blocks{cb})
if err != nil {
if b.BlockHeader == nil {
continue // OK - block is supposed to be invalid, continue with next block
} else {
return fmt.Errorf("Block insertion into chain failed: %v", err)
}
}
if b.BlockHeader == nil {
return fmt.Errorf("Block insertion should have failed")
}
err = t.validateBlockHeader(b.BlockHeader, cb.Header())
if err != nil {
return fmt.Errorf("Block header validation failed: %v", err)
}
}
return nil
}
开发者ID:nilcons-contrib,项目名称:go-ethereum,代码行数:42,代码来源:block_test_util.go
示例3: hasAllBlocks
func hasAllBlocks(chain *core.ChainManager, bs []*types.Block) bool {
for _, b := range bs {
if !chain.HasBlock(b.Hash()) {
return false
}
}
return true
}
开发者ID:NikonMcFly,项目名称:go-ethereum,代码行数:8,代码来源:admin.go
示例4: ExportChain
func ExportChain(chainmgr *core.ChainManager, fn string) error {
fmt.Printf("exporting blockchain '%s'\n", 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 := chainmgr.Export(fh); err != nil {
return err
}
fmt.Printf("exported blockchain\n")
return nil
}
开发者ID:hiroshi1tanaka,项目名称:gethkey,代码行数:13,代码来源:cmd.go
示例5: ExportChain
func ExportChain(chainmgr *core.ChainManager, 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 := chainmgr.Export(fh); err != nil {
return err
}
glog.Infoln("Exported blockchain to", fn)
return nil
}
开发者ID:ruflin,项目名称:go-ethereum,代码行数:13,代码来源:cmd.go
示例6: ExportAppendChain
func ExportAppendChain(chainmgr *core.ChainManager, 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 := chainmgr.ExportN(fh, first, last); err != nil {
return err
}
glog.Infoln("Exported blockchain to", fn)
return nil
}
开发者ID:ruflin,项目名称:go-ethereum,代码行数:14,代码来源:cmd.go
示例7: ValidateImportedHeaders
func (test *BlockTest) ValidateImportedHeaders(cm *core.ChainManager, validBlocks []btBlock) error {
// to get constant lookup when verifying block headers by hash (some tests have many blocks)
bmap := make(map[string]btBlock, len(test.Json.Blocks))
for _, b := range validBlocks {
bmap[b.BlockHeader.Hash] = b
}
// iterate over blocks backwards from HEAD and validate imported
// headers vs test file. some tests have reorgs, and we import
// block-by-block, so we can only validate imported headers after
// all blocks have been processed by ChainManager, as they may not
// be part of the longest chain until last block is imported.
for b := cm.CurrentBlock(); b != nil && b.NumberU64() != 0; b = cm.GetBlock(b.Header().ParentHash) {
bHash := common.Bytes2Hex(b.Hash().Bytes()) // hex without 0x prefix
if err := validateHeader(bmap[bHash].BlockHeader, b.Header()); err != nil {
return fmt.Errorf("Imported block header validation failed: %v", err)
}
}
return nil
}
开发者ID:NikonMcFly,项目名称:go-ethereum,代码行数:20,代码来源:block_test_util.go
示例8: ImportChain
func ImportChain(chainmgr *core.ChainManager, fn string) error {
fmt.Printf("importing blockchain '%s'\n", fn)
fh, err := os.OpenFile(fn, os.O_RDONLY, os.ModePerm)
if err != nil {
return err
}
defer fh.Close()
chainmgr.Reset()
stream := rlp.NewStream(fh, 0)
var i, n int
batchSize := 2500
blocks := make(types.Blocks, batchSize)
for ; ; 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", i, err)
}
blocks[n] = &b
n++
if n == batchSize {
if _, err := chainmgr.InsertChain(blocks); err != nil {
return fmt.Errorf("invalid block %v", err)
}
n = 0
blocks = make(types.Blocks, batchSize)
}
}
if n > 0 {
if _, err := chainmgr.InsertChain(blocks[:n]); err != nil {
return fmt.Errorf("invalid block %v", err)
}
}
fmt.Printf("imported %d blocks\n", i)
return nil
}
开发者ID:hiroshi1tanaka,项目名称:gethkey,代码行数:44,代码来源:cmd.go
示例9: ImportChain
func ImportChain(chain *core.ChainManager, 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)
}
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
}
开发者ID:ruflin,项目名称:go-ethereum,代码行数:68,代码来源:cmd.go
注:本文中的github.com/ethereum/go-ethereum/core.ChainManager类示例整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。 |
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