loader

Documentation

Overview

Package loader provides a concurrent safe implementation of a wallet loader.

It is intended to allow creating and opening wallets as well as managing services like ticket buyer by RPC servers as well other subsystems.

Index

• Variables
• func DisableLog()
• func UseLogger(logger btclog.Logger)
• type Loader
  • func NewLoader(chainParams *chaincfg.Params, dbDirPath string, stakeOptions *StakeOptions, ...) *Loader
  • func (l *Loader) CreateNewWallet(pubPassphrase, privPassphrase, seed []byte) (w *wallet.Wallet, err error)
  • func (l *Loader) LoadedWallet() (*wallet.Wallet, bool)
  • func (l *Loader) OpenExistingWallet(pubPassphrase []byte) (w *wallet.Wallet, rerr error)
  • func (l *Loader) PurchaseManager() *ticketbuyer.PurchaseManager
  • func (l *Loader) RunAfterLoad(fn func(*wallet.Wallet))
  • func (l *Loader) SetChainClient(chainClient *dcrrpcclient.Client)
  • func (l *Loader) StartTicketPurchase(passphrase []byte, ticketbuyerCfg *ticketbuyer.Config) error
  • func (l *Loader) StopTicketPurchase() error
  • func (l *Loader) UnloadWallet() error
  • func (l *Loader) WalletExists() (bool, error)
• type StakeOptions

Variables

var (
	// ErrWalletLoaded describes the error condition of attempting to load or
	// create a wallet when the loader has already done so.
	ErrWalletLoaded = errors.New("wallet already loaded")

	// ErrWalletNotLoaded describes the error condition of attempting to close
	// a loaded wallet when a wallet has not been loaded.
	ErrWalletNotLoaded = errors.New("wallet is not loaded")

	// ErrWalletExists describes the error condition of attempting to create a
	// new wallet when one exists already.
	ErrWalletExists = errors.New("wallet already exists")

	// ErrTicketBuyerStarted describes the error condition of attempting to
	// start ticketbuyer when it is already started.
	ErrTicketBuyerStarted = errors.New("ticketbuyer already started")

	// ErrTicketBuyerStopped describes the error condition of attempting to
	// stop ticketbuyer when it is already stopped.
	ErrTicketBuyerStopped = errors.New("ticketbuyer not running")

	// ErrNoChainClient describes the error condition of attempting to start
	// ticketbuyer when no chain client is available.
	ErrNoChainClient = errors.New("chain client not available")
)

Functions

func DisableLog

func DisableLog()

DisableLog disables all library log output. Logging output is disabled by default until either UseLogger or SetLogWriter are called.

func UseLogger

func UseLogger(logger btclog.Logger)

UseLogger uses a specified Logger to output package logging info. This should be used in preference to SetLogWriter if the caller is also using btclog.

Types

type Loader

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

Loader implements the creating of new and opening of existing wallets, while providing a callback system for other subsystems to handle the loading of a wallet. This is primarely intended for use by the RPC servers, to enable methods and services which require the wallet when the wallet is loaded by another subsystem.

Loader is safe for concurrent access.

func NewLoader

func NewLoader(chainParams *chaincfg.Params, dbDirPath string, stakeOptions *StakeOptions, addrIdxScanLen int,
	allowHighFees bool, relayFee float64) *Loader

NewLoader constructs a Loader.

func (*Loader) CreateNewWallet

func (l *Loader) CreateNewWallet(pubPassphrase, privPassphrase, seed []byte) (w *wallet.Wallet, err error)

CreateNewWallet creates a new wallet using the provided public and private passphrases. The seed is optional. If non-nil, addresses are derived from this seed. If nil, a secure random seed is generated.

func (*Loader) LoadedWallet

func (l *Loader) LoadedWallet() (*wallet.Wallet, bool)

LoadedWallet returns the loaded wallet, if any, and a bool for whether the wallet has been loaded or not. If true, the wallet pointer should be safe to dereference.

func (*Loader) OpenExistingWallet

func (l *Loader) OpenExistingWallet(pubPassphrase []byte) (w *wallet.Wallet, rerr error)

OpenExistingWallet opens the wallet from the loader's wallet database path and the public passphrase. If the loader is being called by a context where standard input prompts may be used during wallet upgrades, setting canConsolePrompt will enable these prompts.

func (*Loader) PurchaseManager

func (l *Loader) PurchaseManager() *ticketbuyer.PurchaseManager

PurchaseManager returns the ticket purchaser instance. If ticket purchasing has been disabled, it returns nil.

func (*Loader) RunAfterLoad

func (l *Loader) RunAfterLoad(fn func(*wallet.Wallet))

RunAfterLoad adds a function to be executed when the loader creates or opens a wallet. Functions are executed in a single goroutine in the order they are added.

func (*Loader) SetChainClient

func (l *Loader) SetChainClient(chainClient *dcrrpcclient.Client)

SetChainClient sets the chain server client.

func (*Loader) StartTicketPurchase

func (l *Loader) StartTicketPurchase(passphrase []byte, ticketbuyerCfg *ticketbuyer.Config) error

StartTicketPurchase launches the ticketbuyer to start purchasing tickets.

func (*Loader) StopTicketPurchase

func (l *Loader) StopTicketPurchase() error

StopTicketPurchase stops the ticket purchaser, waiting until it has finished. If no ticket purchaser is running, it returns ErrTicketBuyerStopped.

func (*Loader) UnloadWallet

func (l *Loader) UnloadWallet() error

UnloadWallet stops the loaded wallet, if any, and closes the wallet database. This returns ErrWalletNotLoaded if the wallet has not been loaded with CreateNewWallet or LoadExistingWallet. The Loader may be reused if this function returns without error.

func (*Loader) WalletExists

func (l *Loader) WalletExists() (bool, error)

WalletExists returns whether a file exists at the loader's database path. This may return an error for unexpected I/O failures.

type StakeOptions

type StakeOptions struct {
	TicketPurchasingEnabled bool
	VotingEnabled           bool
	TicketFee               float64
	AddressReuse            bool
	TicketAddress           dcrutil.Address
	PoolAddress             dcrutil.Address
	PoolFees                float64
	StakePoolColdExtKey     string
}

StakeOptions contains the various options necessary for stake mining.