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channeldb: make MarkEdgeLive logic reusable

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This commit is a set-up commit. It extracts the logic from
`MarkEdgeLive` to a helper `markEdgeLive` method so that the logic can
be called from within other kvdb.Update blocks. This will be used in the
next commit.
This commit is contained in:
Elle Mouton 2023-11-13 14:38:28 +02:00
parent e12321cfd6
commit ebe0755a97
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GPG Key ID: D7D916376026F177
1 changed files with 23 additions and 6 deletions
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29
channeldb/graph.go
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@ -3580,10 +3580,17 @@ func markEdgeZombie(zombieIndex kvdb.RwBucket, chanID uint64, pubKey1,
// MarkEdgeLive clears an edge from our zombie index, deeming it as live.
func (c *ChannelGraph) MarkEdgeLive(chanID uint64) error {
return c.markEdgeLive(nil, chanID)
}
// markEdgeLive clears an edge from the zombie index. This method can be called
// with an existing kvdb.RwTx or the argument can be set to nil in which case a
// new transaction will be created.
func (c *ChannelGraph) markEdgeLive(tx kvdb.RwTx, chanID uint64) error {
c.cacheMu.Lock()
defer c.cacheMu.Unlock()
err := kvdb.Update(c.db, func(tx kvdb.RwTx) error {
dbFn := func(tx kvdb.RwTx) error {
edges := tx.ReadWriteBucket(edgeBucket)
if edges == nil {
return ErrGraphNoEdgesFound
@ -3601,7 +3608,16 @@ func (c *ChannelGraph) MarkEdgeLive(chanID uint64) error {
}
return zombieIndex.Delete(k[:])
}, func() {})
}
// If the transaction is nil, we'll create a new one. Otherwise, we use
// the existing transaction
var err error
if tx == nil {
err = kvdb.Update(c.db, dbFn, func() {})
} else {
err = dbFn(tx)
}
if err != nil {
return err
}
@ -3611,11 +3627,12 @@ func (c *ChannelGraph) MarkEdgeLive(chanID uint64) error {
// We need to add the channel back into our graph cache, otherwise we
// won't use it for path finding.
edgeInfos, err := c.FetchChanInfos([]uint64{chanID})
if err != nil {
return err
}
if c.graphCache != nil {
edgeInfos, err := c.FetchChanInfos([]uint64{chanID})
if err != nil {
return err
}
for _, edgeInfo := range edgeInfos {
c.graphCache.AddChannel(
edgeInfo.Info, edgeInfo.Policy1,