core

package
v0.0.4 Latest Latest
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 Go to latest Published: Jul 31, 2021 License: MIT Imports: 15 Imported by: 0

Documentation

Index

Constants

View Source 
const INDEX_BLOCK_HASH = "block_hash"
View Source 
const INDEX_BLOCK_NUMBER = "block_no"
View Source 
const MINING_ALGO_POW = "pow"

Variables

This section is empty.

Functions

func GetBlocksDbPath 

func GetBlocksDbPath() string

func GetDataDir 

func GetDataDir() string

func GetGenesisFilePath 

func GetGenesisFilePath() string

func InitFS 

func InitFS() error

func InitGenesis 

func InitGenesis() error

func SetConfig 

func SetConfig(config CoreConfig)

Types

type Block 

type Block struct {
	Header       BlockHeader   `json:"header"`
	Transactions []Transaction `json:"transactions"`
	Data         []byte        `json:"data,omitempty"`
}

func NewBlock 

func NewBlock(
	parentHash common.Hash,
	number uint64,
	time uint64,
	nonce uint64,
	miner common.Address,
	miningAlgo string,
	reward uint64,
	transactions []Transaction,
	data []byte,
) Block

func (Block) Hash 

func (b Block) Hash() (common.Hash, error)

func (Block) IsBlockHashValid 

func (b Block) IsBlockHashValid() (bool, error)

func (Block) IsEmpty 

func (b Block) IsEmpty() bool

type BlockConfig 

type BlockConfig struct {
	Reward     uint64 `yaml:"reward,omitempty"`
	Complexity uint64 `yaml:"complexity,omitempty"`
}

type BlockFS 

type BlockFS struct {
	Hash  common.Hash `json:"hash"`
	Block Block       `json:"block"`
}

type BlockHeader 

type BlockHeader struct {
	ParentHash       common.Hash    `json:"parentHash"`
	Timestamp        uint64         `json:"timestamp"`
	Number           uint64         `json:"number"`
	Nonce            uint64         `json:"nonce"`
	Miner            common.Address `json:"miner"`
	MiningAlgo       string         `json:"miningAlgo"`
	MiningComplexity uint64         `json:"miningComplexity"`
	Reward           uint64         `json:"reward"`
}

type CoreConfig 

type CoreConfig struct {
	State StateConfig `yaml:"state,omitempty"`
	Block BlockConfig `yaml:"block,omitempty"`
}
var Config CoreConfig = Defaults()

func Defaults 

func Defaults() CoreConfig

type FsProvider 

type FsProvider interface {
	InitFS() error
	GetDataDir() string
	GetGenesisFilePath() string
	GetBlocksDbPath() string
}

type Genesis 

type Genesis struct {
	Timestamp uint64                  `json:"timestamp"`
	Config    GenesisConfig           `json:"config"`
	Balances  map[common.Address]uint `json:"balances"`
}

func (Genesis) Hash 

func (g Genesis) Hash() (common.Hash, error)

type GenesisConfig 

type GenesisConfig struct {
	ChainId string `json:"chainId"`
}

type State 

type State struct {
	Balances map[common.Address]uint
	// contains filtered or unexported fields
}

func LoadState 

func LoadState() (*State, error)

1. Initializes empty state 2. Load Genesis block 3. Loads the state from local db

func NewState 

func NewState() (*State, error)

func (*State) AddBlock 

func (s *State) AddBlock(block Block) (common.Hash, error)

func (*State) AddTransaction 

func (s *State) AddTransaction(tx Transaction) error

func (*State) Close 

func (s *State) Close()

func (*State) Copy 

func (s *State) Copy() State

func (*State) GetBlock 

func (s *State) GetBlock(blockHash common.Hash) (BlockFS, error)

func (*State) GetBlockWithHashBytes 

func (s *State) GetBlockWithHashBytes(hashBytes []byte) (BlockFS, error)

func (*State) GetBlocksAfter 

func (s *State) GetBlocksAfter(hash common.Hash) ([]Block, error)

TODO : this needs to be fixed and changed to query from leveldb

func (*State) LatestBlock 

func (s *State) LatestBlock() Block

func (*State) LatestBlockHash 

func (s *State) LatestBlockHash() common.Hash

func (*State) NextBlockNumber 

func (s *State) NextBlockNumber() uint64

func (*State) ValidateTxn 

func (s *State) ValidateTxn(tx Transaction) error

type StateConfig 

type StateConfig struct {
	DbFile string `yaml:"dbfile,omitempty"`
}

type Transaction 

type Transaction struct {
	TxnContent TransactionContent `json:"txnContent"`
	TxnHash    common.Hash        `json:"txnHash"`
	Signature  common.Signature   `json:"signature"`
}

func NewTransaction 

func NewTransaction(from common.Address, to common.Address, value uint, data string) Transaction

func (*Transaction) Cost 

func (t *Transaction) Cost() uint

func (*Transaction) Data 

func (t *Transaction) Data() string

func (*Transaction) Encode 

func (t *Transaction) Encode() ([]byte, error)

func (*Transaction) Fee 

func (t *Transaction) Fee() uint

func (*Transaction) From 

func (t *Transaction) From() common.Address

func (*Transaction) Hash 

func (t *Transaction) Hash() common.Hash

func (*Transaction) IsAuthentic 

func (t *Transaction) IsAuthentic() (bool, error)

func (*Transaction) Sign 

func (t *Transaction) Sign() error

func (*Transaction) To 

func (t *Transaction) To() common.Address

func (*Transaction) Value 

func (t *Transaction) Value() uint

func (*Transaction) WithSignature 

func (t *Transaction) WithSignature(signature common.Signature)

type TransactionContent 

type TransactionContent struct {
	TxnData   TransactionData `json:"txnData"`
	TxnFee    uint            `json:"txnFee"`
	Timestamp uint64          `json:"timestamp"`
}

type TransactionData 

type TransactionData struct {
	From  common.Address `json:"from"`
	To    common.Address `json:"to"`
	Value uint           `json:"value"`
	Data  string         `json:"data"`
}

Source Files

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