database

Documentation

Index

• type Account
  • func NewAccount(value string) Account
• type Block
  • func NewBlock(parent Hash, time uint64, txs []Tx) Block
  • func (b Block) Hash() (Hash, error)
• type BlockFS
• type BlockHeader
• type Hash
  • func (h Hash) MarshalText() ([]byte, error)
  • func (h *Hash) UnmarshalText(data []byte) error
• type State
  • func NewStateFromDisk() (*State, error)
  • func (s *State) AddBlock(b Block) error
  • func (s *State) AddTx(tx Tx) error
  • func (s *State) Close()
  • func (s *State) LatestBlockHash() Hash
  • func (s *State) Persist() (Hash, error)
• type Tx
  • func NewTx(from Account, to Account, value uint, data string) Tx
  • func (t Tx) IsReward() bool

Types

type Account

type Account string

func NewAccount

func NewAccount(value string) Account

type Block

type Block struct {
	Header BlockHeader `json:"header"`
	TXs    []Tx        `json:"payload"`
}

func NewBlock

func NewBlock(parent Hash, time uint64, txs []Tx) Block

func (Block) Hash

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

type BlockFS

type BlockFS struct {
	Key   Hash  `json:"hash"`
	Value Block `json:"block"`
}

type BlockHeader

type BlockHeader struct {
	Parent Hash   `json:"parent"`
	Time   uint64 `json:"time"`
}

type Hash

type Hash [32]byte

func (Hash) MarshalText

func (h Hash) MarshalText() ([]byte, error)

func (*Hash) UnmarshalText

func (h *Hash) UnmarshalText(data []byte) error

type State

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

State used to control the state of the chain

func NewStateFromDisk

func NewStateFromDisk() (*State, error)

NewStateFromDisk -> load all state information

func (*State) AddBlock

func (s *State) AddBlock(b Block) error

AddBlock add transaction to the block

func (*State) AddTx

func (s *State) AddTx(tx Tx) error

Add -> add new tx to mempool

func (*State) Close

func (s *State) Close()

Close -> close file overwrite for State

func (*State) LatestBlockHash

func (s *State) LatestBlockHash() Hash

LatestBlockHash -> get the last snapshot of tx.db transactions

func (*State) Persist

func (s *State) Persist() (Hash, error)

Persist -> persist transactions into tx file

type Tx

type Tx struct {
	From  Account `json:"from"`
	To    Account `json:"to"`
	Value uint    `json:"value"`
	Data  string  `json:"data"`
}

func NewTx

func NewTx(from Account, to Account, value uint, data string) Tx

NewTx -> return a new Tx

func (Tx) IsReward

func (t Tx) IsReward() bool

IsReward -> check if Data field is eq to reward