core

package
v0.0.0-...-d5f87a7 Latest Latest
Warning

This package is not in the latest version of its module.

 Go to latest Published: Feb 6, 2023 License: MIT Imports: 13 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func HandleErr 

func HandleErr(err error)

func IntToHex 

func IntToHex(n int64) []byte

整数转化为字节数组 Integer converted to byte array

func PathExists 

func PathExists(path string) (bool, error)

判断文件或者文件夹是否存在 使用os.Stat()函数返回的错误值进行判断: 如果返回的错误为nil,说明文件或文件夹存在 如果返回的错误类型使用os.IsNotExist()判断为true,说明文件或文件夹不存在 如果返回的错误为其它类型,则不确定是否在存在 Check if the file or folder exists Use the error value returned by the os.Stat() function to determine: If the returned error is nil, the file or folder exists If the returned error type is determined to be true by os.IsNotExist(), it means that the file or folder does not exist If the returned error is other type, it is not sure whether it exists

Types

type Block 

type Block struct {
	Timestamp     int64 // 区块创建时间戳 // time stamp for the Block creation
	Transactions  []*Transaction
	PrevBlockHash []byte // 前一个区块的哈希值 // Hash value for the previous Block
	Hash          []byte // 区块自身的哈希值，用于校验区块数据有效 // Hash value of the current block, used
	// to verify the valididy of the block data
	Nonce int // 工作量证明值,用来校验数据的  // Proof of work, used to verify data.
}

区块结构体定义 Definition for Block struct

func DeserializeBlock 

func DeserializeBlock(d []byte) *Block

把字节数组反序列化为一个Block Deserialize the byte array into a Block

func NewBlock 

func NewBlock(transactions []*Transaction, prevBlockHash []byte) *Block

NewBlock create and return Block

func NewGenesisBlock 

func NewGenesisBlock(coinbase *Transaction) *Block

创建创世区块 Create Genesis Block

func (*Block) HashTransaction 

func (b *Block) HashTransaction() []byte

把区块的所有交易ID做个hash处理 make a hash for all the transaction ID in the Block

func (*Block) Serialize 

func (b *Block) Serialize() []byte

把Block序列化为一个字节数组 Serialize the block into a byte array

type BlockChain 

type BlockChain struct {
	// contains filtered or unexported fields
}

区块链结构 struct for the blockchain

func CreateBlockchain 

func CreateBlockchain(address string) *BlockChain

创建区块链，即是初始化区块链，添加创世区块 Creating a blockchain means initializing the blockchain and adding the genesis block

func NewBlockChain 

func NewBlockChain() *BlockChain

* 1. Open a database file 2. Check if a blockchain is already stored in the file 3. If a blockchain is already stored: Create a new Blockchain instance Set the Blockchain instance's tip to the hash of the last block stored in the database

  1. If there is no blockchain: Create Genesis Block store in database Save the genesis block hash as the hash of the last block Create a new Blockchain instance, initially the tip points to the genesis block (tip has a tail, meaning the tip, here the tip stores the hash of the last block)

func (*BlockChain) DbClose 

func (bc *BlockChain) DbClose()

关闭db数据库连接 close the connection to the db database

func (*BlockChain) FindSpendableOutputs 

func (bc *BlockChain) FindSpendableOutputs(address string, amount int) (int, map[string][]int)

可以用来spent的输出 Spendable outputs

func (*BlockChain) FindUTXO 

func (bc *BlockChain) FindUTXO(address string) []TXOutput

统计出address对应的所有没有花费出去的输出(也即是它的币) Count all unspent outputs corresponding to address (that is, its coins)

func (*BlockChain) FindUnspentTransactions 

func (bc *BlockChain) FindUnspentTransactions(address string) []Transaction

找到所有包含未花费输出的交易集合 Find the set of all transactions that contain unspent outputs

func (*BlockChain) Iterator 

func (bc *BlockChain) Iterator() *BlockchainIterator

迭代器的初始状态为链中的 tip，因此区块将从尾到头（创世块为头） The initial state of the iterator is the tip in the chain, 

so the blocks will go from the end to the beginning (the genesis block is the head)

func (*BlockChain) MineBlock 

func (bc *BlockChain) MineBlock(transactions []*Transaction)

MineBlock mines a new block with the provided transactions 发送币意味着创建新的交易，并通过挖出新块的方式将交易打包到区块链中 Sending coins means creating a new transaction and packing the transaction into the blockchain by mining a new block

type BlockchainIterator 

type BlockchainIterator struct {
	// contains filtered or unexported fields
}

区块链迭代器 block chain iterator

func (*BlockchainIterator) Next 

func (bci *BlockchainIterator) Next() *Block

只会做一件事情：返回链中的下一个块。 Will only do one thing: return the next block in the chain.

type CLI 

type CLI struct {
}

cli命令结构体 cli command struct

func (*CLI) Run 

func (cli *CLI) Run()

启动cli命令 cli run command

type ProofOfWork 

type ProofOfWork struct {
	// contains filtered or unexported fields
}

工作量证明结构 proof of work struct

func NewProofOfWork 

func NewProofOfWork(b *Block) *ProofOfWork

func (*ProofOfWork) Run 

func (pow *ProofOfWork) Run() (int, []byte)

运行工作量证明得出新的区块哈希值以及Nonce Run the proof of work to get the new block hash value and Nonce

func (*ProofOfWork) Validate 

func (pow *ProofOfWork) Validate() bool

工作量生成的区块哈希值验证是否是有效的 Verify whether the block hash value generated by the workload is valid

type TXInput 

type TXInput struct {
	Txid      []byte
	Vout      int
	ScriptSig string
}

func (*TXInput) CanUnlockOutputWith 

func (in *TXInput) CanUnlockOutputWith(unlockingData string) bool

type TXOutput 

type TXOutput struct {
	Value        int    // 一定量的比特币(Value)
	ScriptPubKey string // 一个锁定脚本(ScriptPubKey)，要花这笔钱，必须要解锁该脚本。

}

交易输出结构体 transaction output struct

func (*TXOutput) CanBeUnlockedWith 

func (out *TXOutput) CanBeUnlockedWith(unlockingData string) bool

判断该输入是否可以被unlockingData解锁 Determine whether the input can be unlocked by unlockingData

type Transaction 

type Transaction struct {
	ID []byte // 交易id,使用输入输出等信息来哈希，确保信息不被篡改
	// transaction id, Use information such as
	//input and output to hash to ensure that the information is not tampered with
	Vin  []TXInput
	Vout []TXOutput
}

交易结构体，用来存储一笔交易 transaction struct, used to store a transaction

func NewCoinbaseTransaction 

func NewCoinbaseTransaction(to, data string) *Transaction

创建挖矿奖励交易：交易只有一个输出，没有输入 Create a mining reward transaction: the transaction has only one output and no input

func NewUTXOTransaction 

func NewUTXOTransaction(from, to string, amount int, bc *BlockChain) *Transaction

创建转账交易记录 Create transfer transaction records

func (*Transaction) IsCoinbase 

func (tx *Transaction) IsCoinbase() bool

IsCoinbase check whether the transaction is coinbase

func (*Transaction) SetID 

func (tx *Transaction) SetID()

设置交易的ID编号，这里是做hash处理 Set the ID number of the transaction, which is processed with hash algorithm

Source Files

View all Source files

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.