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channeldb+routing: add tx parameter

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Adds an optional tx parameter to ForAllOutgoingChannels and FetchChannel
so that data can be queried within the context of an existing database
transaction.
This commit is contained in:
Joost Jager
2021-08-23 12:16:37 +02:00
parent 23cd231483
commit 3f775778c3
13 changed files with 62 additions and 32 deletions
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8
chanbackup/backup.go
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@@ -7,6 +7,7 @@ import (
"github.com/btcsuite/btcd/btcec"
"github.com/btcsuite/btcd/wire"
"github.com/lightningnetwork/lnd/channeldb"
"github.com/lightningnetwork/lnd/kvdb"
)
// LiveChannelSource is an interface that allows us to query for the set of
@@ -17,8 +18,9 @@ type LiveChannelSource interface {
FetchAllChannels() ([]*channeldb.OpenChannel, error)
// FetchChannel attempts to locate a live channel identified by the
// passed chanPoint.
FetchChannel(chanPoint wire.OutPoint) (*channeldb.OpenChannel, error)
// passed chanPoint. Optionally an existing db tx can be supplied.
FetchChannel(tx kvdb.RTx, chanPoint wire.OutPoint) (
*channeldb.OpenChannel, error)
// AddrsForNode returns all known addresses for the target node public
// key.
@@ -55,7 +57,7 @@ func FetchBackupForChan(chanPoint wire.OutPoint,
// First, we'll query the channel source to see if the channel is known
// and open within the database.
targetChan, err := chanSource.FetchChannel(chanPoint)
targetChan, err := chanSource.FetchChannel(nil, chanPoint)
if err != nil {
// If we can't find the channel, then we return with an error,
// as we have nothing to backup.