github.com/linapex/ethereum-dpos-chinese@v0.0.0-20190316121959-b78b3a4a1ece/consensus/misc/forks.go (about)

     1  
     2  //<developer>
     3  //    <name>linapex 曹一峰</name>
     4  //    <email>linapex@163.com</email>
     5  //    <wx>superexc</wx>
     6  //    <qqgroup>128148617</qqgroup>
     7  //    <url>https://jsq.ink</url>
     8  //    <role>pku engineer</role>
     9  //    <date>2019-03-16 12:09:33</date>
    10  //</624342612429508608>
    11  
    12  
    13  package misc
    14  
    15  import (
    16  	"fmt"
    17  
    18  	"github.com/ethereum/go-ethereum/common"
    19  	"github.com/ethereum/go-ethereum/core/types"
    20  	"github.com/ethereum/go-ethereum/params"
    21  )
    22  
    23  //verifyforkhashes验证符合网络硬分叉的块是否具有
    24  //正确的散列，以避免客户在不同的链上离开。这是一个
    25  //可选功能。
    26  func VerifyForkHashes(config *params.ChainConfig, header *types.Header, uncle bool) error {
    27  //我们不关心叔叔
    28  	if uncle {
    29  		return nil
    30  	}
    31  //如果设置了homestead重定价哈希，请验证它
    32  	if config.EIP150Block != nil && config.EIP150Block.Cmp(header.Number) == 0 {
    33  		if config.EIP150Hash != (common.Hash{}) && config.EIP150Hash != header.Hash() {
    34  			return fmt.Errorf("homestead gas reprice fork: have 0x%x, want 0x%x", header.Hash(), config.EIP150Hash)
    35  		}
    36  	}
    37  //一切还好，归来
    38  	return nil
    39  }
    40