lnd.xprv/lnwallet/btcwallet/driver.go

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package btcwallet
import (
"fmt"
"github.com/btcsuite/btcwallet/chain"
"github.com/lightningnetwork/lnd/blockcache"
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"github.com/lightningnetwork/lnd/lnwallet"
)
const (
walletType = "btcwallet"
)
// createNewWallet creates a new instance of BtcWallet given the proper list of
// initialization parameters. This function is the factory function required to
// properly create an instance of the lnwallet.WalletDriver struct for
// BtcWallet.
func createNewWallet(args ...interface{}) (lnwallet.WalletController, error) {
if len(args) != 2 {
return nil, fmt.Errorf("incorrect number of arguments to .New(...), "+
"expected 2, instead passed %v", len(args))
}
config, ok := args[0].(*Config)
if !ok {
return nil, fmt.Errorf("first argument to btcdnotifier.New is " +
"incorrect, expected a *rpcclient.ConnConfig")
}
blockCache, ok := args[1].(*blockcache.BlockCache)
if !ok {
return nil, fmt.Errorf("second argument to btcdnotifier.New is " +
"incorrect, expected a *blockcache.BlockCache")
}
return New(*config, blockCache)
}
// init registers a driver for the BtcWallet concrete implementation of the
// lnwallet.WalletController interface.
func init() {
// Register the driver.
driver := &lnwallet.WalletDriver{
WalletType: walletType,
New: createNewWallet,
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BackEnds: chain.BackEnds,
}
if err := lnwallet.RegisterWallet(driver); err != nil {
panic(fmt.Sprintf("failed to register wallet driver '%s': %v",
walletType, err))
}
}