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chainntnfs/bitcoindnotify: add chainParams parameter to bitcoindnotify.New

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In this commit, we add the current chain parameters to the
BitcoindNotifier. This will be used in a future commit in order to
convert outputs scripts into addresses. This is needed since the
bitcoind backend uses these addresses to detect whether the script
encoded within it was spent by a transaction in the chain.
This commit is contained in:
Wilmer Paulino 2018-12-06 21:14:04 -08:00
parent 1ee8d7518c
commit 686e734e22
No known key found for this signature in database
GPG Key ID: 6DF57B9F9514972F
3 changed files with 25 additions and 10 deletions
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11
chainntnfs/bitcoindnotify/bitcoind.go
View File

@ -8,6 +8,7 @@ import (
"sync/atomic"
"github.com/btcsuite/btcd/btcjson"
"github.com/btcsuite/btcd/chaincfg"
"github.com/btcsuite/btcd/chaincfg/chainhash"
"github.com/btcsuite/btcd/wire"
"github.com/btcsuite/btcutil"
@ -58,7 +59,8 @@ type BitcoindNotifier struct {
started int32 // To be used atomically.
stopped int32 // To be used atomically.
chainConn *chain.BitcoindClient
chainConn *chain.BitcoindClient
chainParams *chaincfg.Params
notificationCancels chan interface{}
notificationRegistry chan interface{}
@ -88,12 +90,15 @@ type BitcoindNotifier struct {
var _ chainntnfs.ChainNotifier = (*BitcoindNotifier)(nil)
// New returns a new BitcoindNotifier instance. This function assumes the
// bitcoind node detailed in the passed configuration is already running, and
// bitcoind node detailed in the passed configuration is already running, and
// willing to accept RPC requests and new zmq clients.
func New(chainConn *chain.BitcoindConn, spendHintCache chainntnfs.SpendHintCache,
func New(chainConn *chain.BitcoindConn, chainParams *chaincfg.Params,
spendHintCache chainntnfs.SpendHintCache,
confirmHintCache chainntnfs.ConfirmHintCache) *BitcoindNotifier {
notifier := &BitcoindNotifier{
chainParams: chainParams,
notificationCancels: make(chan interface{}),
notificationRegistry: make(chan interface{}),

5
chainntnfs/bitcoindnotify/bitcoind_test.go
View File

@ -41,7 +41,10 @@ func setUpNotifier(t *testing.T, bitcoindConn *chain.BitcoindConn,
t.Helper()
notifier := New(bitcoindConn, spendHintCache, confirmHintCache)
notifier := New(
bitcoindConn, chainntnfs.NetParams, spendHintCache,
confirmHintCache,
)
if err := notifier.Start(); err != nil {
t.Fatalf("unable to start notifier: %v", err)
}

19
chainntnfs/bitcoindnotify/driver.go
View File

@ -4,6 +4,7 @@ import (
"errors"
"fmt"
"github.com/btcsuite/btcd/chaincfg"
"github.com/btcsuite/btcwallet/chain"
"github.com/lightningnetwork/lnd/chainntnfs"
)
@ -11,9 +12,9 @@ import (
// createNewNotifier creates a new instance of the ChainNotifier interface
// implemented by BitcoindNotifier.
func createNewNotifier(args ...interface{}) (chainntnfs.ChainNotifier, error) {
if len(args) != 3 {
if len(args) != 4 {
return nil, fmt.Errorf("incorrect number of arguments to "+
".New(...), expected 2, instead passed %v", len(args))
".New(...), expected 4, instead passed %v", len(args))
}
chainConn, ok := args[0].(*chain.BitcoindConn)
@ -22,19 +23,25 @@ func createNewNotifier(args ...interface{}) (chainntnfs.ChainNotifier, error) {
"is incorrect, expected a *chain.BitcoindConn")
}
spendHintCache, ok := args[1].(chainntnfs.SpendHintCache)
chainParams, ok := args[1].(*chaincfg.Params)
if !ok {
return nil, errors.New("second argument to bitcoindnotify.New " +
"is incorrect, expected a *chaincfg.Params")
}
spendHintCache, ok := args[2].(chainntnfs.SpendHintCache)
if !ok {
return nil, errors.New("third argument to bitcoindnotify.New " +
"is incorrect, expected a chainntnfs.SpendHintCache")
}
confirmHintCache, ok := args[2].(chainntnfs.ConfirmHintCache)
confirmHintCache, ok := args[3].(chainntnfs.ConfirmHintCache)
if !ok {
return nil, errors.New("third argument to bitcoindnotify.New " +
return nil, errors.New("fourth argument to bitcoindnotify.New " +
"is incorrect, expected a chainntnfs.ConfirmHintCache")
}
return New(chainConn, spendHintCache, confirmHintCache), nil
return New(chainConn, chainParams, spendHintCache, confirmHintCache), nil
}
// init registers a driver for the BtcdNotifier concrete implementation of the