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lnwallet: switch over to using btcwallet's new Loader type

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Allows us to remove a lot of duplicated code pertaining to wallet
setup. We also gain hooks into the wallet to trigger callbacks once the
wallet is created/opened.
This commit is contained in:
Olaoluwa Osuntokun 2016-02-03 12:00:28 -08:00
parent 92c14c99c3
commit b3cdc6167f
1 changed files with 27 additions and 25 deletions
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52
lnwallet/wallet.go
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@ -7,8 +7,6 @@ import (
"fmt"
"log"
"math"
"os"
"path/filepath"
"sync"
"sync/atomic"
@ -250,7 +248,6 @@ type LightningWallet struct {
func NewLightningWallet(config *Config) (*LightningWallet, walletdb.DB, error) {
// Ensure the wallet exists or create it when the create flag is set.
netDir := networkDir(config.DataDir, config.NetParams)
dbPath := filepath.Join(netDir, walletDbName)
var pubPass []byte
if config.PublicPass == nil {
@ -259,36 +256,41 @@ func NewLightningWallet(config *Config) (*LightningWallet, walletdb.DB, error) {
pubPass = config.PublicPass
}
// Wallet has never been created, perform initial set up.
var createID bool
if !fileExists(dbPath) {
// Ensure the data directory for the network exists.
if err := checkCreateDir(netDir); err != nil {
fmt.Fprintln(os.Stderr, err)
return nil, nil, err
}
var walletDB walletdb.DB
loader := btcwallet.NewLoader(config.NetParams, netDir)
loader.RunAfterLoad(func(w *btcwallet.Wallet, db walletdb.DB) {
walletDB = db
})
// Attempt to create a new wallet
if err := createWallet(config.PrivatePass, pubPass,
config.HdSeed, dbPath, config.NetParams); err != nil {
fmt.Fprintln(os.Stderr, err)
walletExists, err := loader.WalletExists()
if err != nil {
return nil, nil, err
}
var createID bool
var wallet *btcwallet.Wallet
if !walletExists {
// Wallet has never been created, perform initial set up.
wallet, err = loader.CreateNewWallet(pubPass, config.PrivatePass,
config.HdSeed)
if err != nil {
return nil, nil, err
}
createID = true
}
// Wallet has been created and been initialized at this point, open it
// along with all the required DB namepsaces, and the DB itself.
wallet, db, err := openWallet(pubPass, netDir, config.NetParams)
if err != nil {
return nil, nil, err
} else {
// Wallet has been created and been initialized at this point, open it
// along with all the required DB namepsaces, and the DB itself.
wallet, err = loader.OpenExistingWallet(pubPass, false)
if err != nil {
return nil, nil, err
}
}
// Create a special namespace for our unique payment channel related
// meta-data. Subsequently initializing the channeldb around the
// created namespace.
lnNamespace, err := db.Namespace(lightningNamespaceKey)
lnNamespace, err := walletDB.Namespace(lightningNamespaceKey)
if err != nil {
return nil, nil, err
}
@ -320,7 +322,7 @@ func NewLightningWallet(config *Config) (*LightningWallet, walletdb.DB, error) {
// TODO(roasbeef): logging
return &LightningWallet{
db: db,
db: walletDB,
chainNotifier: chainNotifier,
Wallet: wallet,
ChannelDB: cdb,
@ -332,7 +334,7 @@ func NewLightningWallet(config *Config) (*LightningWallet, walletdb.DB, error) {
cfg: config,
fundingLimbo: make(map[uint64]*ChannelReservation),
quit: make(chan struct{}),
}, db, nil
}, walletDB, nil
}
// Startup establishes a connection to the RPC source, and spins up all