mirror/lnd
1
0 Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

channeldb+funding: move policy encoding into channel DB

Browse Source
This commit is contained in:
Oliver Gugger authored and yyforyongyu committed 2023-08-22 06:22:33 +08:00
1 parent 36fcf65e97
commit 59b5fb1565
3 files changed
+111 -52
Download Patch File Download Diff File Expand all files Collapse all files

No files matched your search

funding/manager.go
+23 -39
View File
@@ -20,6 +20,7 @@ import (
"github.com/lightningnetwork/lnd/chainreg"
"github.com/lightningnetwork/lnd/chanacceptor"
"github.com/lightningnetwork/lnd/channeldb"
"github.com/lightningnetwork/lnd/channeldb/models"
"github.com/lightningnetwork/lnd/discovery"
"github.com/lightningnetwork/lnd/htlcswitch"
"github.com/lightningnetwork/lnd/input"
@@ -4636,62 +4637,45 @@ func (f *Manager) defaultForwardingPolicy(
// saveInitialForwardingPolicy saves the forwarding policy for the provided
// chanPoint in the channelOpeningStateBucket.
func (f *Manager) saveInitialForwardingPolicy(permChanID lnwire.ChannelID,
func (f *Manager) saveInitialForwardingPolicy(chanID lnwire.ChannelID,
forwardingPolicy *htlcswitch.ForwardingPolicy) error {
chanID := make([]byte, 32)
copy(chanID, permChanID[:])
scratch := make([]byte, 36)
byteOrder.PutUint64(scratch[:8], uint64(forwardingPolicy.MinHTLCOut))
byteOrder.PutUint64(scratch[8:16], uint64(forwardingPolicy.MaxHTLC))
byteOrder.PutUint64(scratch[16:24], uint64(forwardingPolicy.BaseFee))
byteOrder.PutUint64(scratch[24:32], uint64(forwardingPolicy.FeeRate))
byteOrder.PutUint32(scratch[32:], forwardingPolicy.TimeLockDelta)
return f.cfg.ChannelDB.SaveInitialForwardingPolicy(chanID, scratch)
return f.cfg.ChannelDB.SaveInitialForwardingPolicy(
chanID, &models.ForwardingPolicy{
MinHTLCOut: forwardingPolicy.MinHTLCOut,
MaxHTLC: forwardingPolicy.MaxHTLC,
BaseFee: forwardingPolicy.BaseFee,
FeeRate: forwardingPolicy.FeeRate,
TimeLockDelta: forwardingPolicy.TimeLockDelta,
},
)
}
// getInitialForwardingPolicy fetches the initial forwarding policy for a given
// channel id from the database which will be applied during the channel
// announcement phase.
func (f *Manager) getInitialForwardingPolicy(
permChanID lnwire.ChannelID) (*htlcswitch.ForwardingPolicy, error) {
chanID lnwire.ChannelID) (*htlcswitch.ForwardingPolicy, error) {
chanID := make([]byte, 32)
copy(chanID, permChanID[:])
value, err := f.cfg.ChannelDB.GetInitialForwardingPolicy(chanID)
dbPolicy, err := f.cfg.ChannelDB.GetInitialForwardingPolicy(
chanID,
)
if err != nil {
return nil, err
}
var forwardingPolicy htlcswitch.ForwardingPolicy
forwardingPolicy.MinHTLCOut = lnwire.MilliSatoshi(
byteOrder.Uint64(value[:8]),
)
forwardingPolicy.MaxHTLC = lnwire.MilliSatoshi(
byteOrder.Uint64(value[8:16]),
)
forwardingPolicy.BaseFee = lnwire.MilliSatoshi(
byteOrder.Uint64(value[16:24]),
)
forwardingPolicy.FeeRate = lnwire.MilliSatoshi(
byteOrder.Uint64(value[24:32]),
)
forwardingPolicy.TimeLockDelta = byteOrder.Uint32(value[32:36])
return &forwardingPolicy, nil
return &htlcswitch.ForwardingPolicy{
MinHTLCOut: dbPolicy.MinHTLCOut,
MaxHTLC: dbPolicy.MaxHTLC,
BaseFee: dbPolicy.BaseFee,
FeeRate: dbPolicy.FeeRate,
TimeLockDelta: dbPolicy.TimeLockDelta,
}, nil
}
// deleteInitialForwardingPolicy removes channel fees for this chanID from
// the database.
func (f *Manager) deleteInitialForwardingPolicy(
permChanID lnwire.ChannelID) error {
chanID := make([]byte, 32)
copy(chanID, permChanID[:])
func (f *Manager) deleteInitialForwardingPolicy(chanID lnwire.ChannelID) error {
return f.cfg.ChannelDB.DeleteInitialForwardingPolicy(chanID)
}