12343072627

Committed 15 Dec 2024 11:09PM UTC coverage: 57.504% (-1.1%) from 58.636%

Build # 12343072627

Build Type

Pull #9315

github

Committed by

yyforyongyu

Commit Message

contractcourt: offer outgoing htlc one block earlier before its expiry

We need to offer the outgoing htlc one block earlier to make sure when
the expiry height hits, the sweeper will not miss sweeping it in the
same block. This also means the outgoing contest resolver now only does
one thing - watch for preimage spend till height expiry-1, which can
easily be moved into the timeout resolver instead in the future.

Pull Request Pull Request #9315: Implement `blockbeat`

Run Details

1445 of 2007 new or added lines in 26 files covered. (72.0%)

19246 existing lines in 249 files now uncovered.

102342 of 177975 relevant lines covered (57.5%)

24772.24 hits per line

Source File
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0.0

/zpay32/hophint.go

package zpay32

import (
        "github.com/btcsuite/btcd/btcec/v2"
        "github.com/lightningnetwork/lnd/lnwire"
)

const (
        // DefaultAssumedFinalCLTVDelta is the default value to be used as the
        // final CLTV delta for a route if one is unspecified in the payment
        // request.
        // We adhere to the recommendation in BOLT 02 for terminal payments.
        // See also:
        // https://github.com/lightning/bolts/blob/master/02-peer-protocol.md
        DefaultAssumedFinalCLTVDelta = 18

        // feeRateParts is the total number of parts used to express fee rates.
        feeRateParts = 1e6
)

// HopHint is a routing hint that contains the minimum information of a channel
// required for an intermediate hop in a route to forward the payment to the
// next. This should be ideally used for private channels, since they are not
// publicly advertised to the network for routing.
type HopHint struct {
        // NodeID is the public key of the node at the start of the channel.
        NodeID *btcec.PublicKey

        // ChannelID is the unique identifier of the channel.
        ChannelID uint64

        // FeeBaseMSat is the base fee of the channel in millisatoshis.
        FeeBaseMSat uint32

        // FeeProportionalMillionths is the fee rate, in millionths of a
        // satoshi, for every satoshi sent through the channel.
        FeeProportionalMillionths uint32

        // CLTVExpiryDelta is the time-lock delta of the channel.
        CLTVExpiryDelta uint16
}

// Copy returns a deep copy of the hop hint.
func (h HopHint) Copy() HopHint {
        nodeID := *h.NodeID
        return HopHint{
                NodeID:                    &nodeID,
                ChannelID:                 h.ChannelID,
                FeeBaseMSat:               h.FeeBaseMSat,
                FeeProportionalMillionths: h.FeeProportionalMillionths,
                CLTVExpiryDelta:           h.CLTVExpiryDelta,
        }
}

// HopFee calculates the fee for a given amount that is forwarded over a hop.
// The amount has to be denoted in milli satoshi. The returned fee is also
// denoted in milli satoshi.
func (h HopHint) HopFee(amt lnwire.MilliSatoshi) lnwire.MilliSatoshi {
        baseFee := lnwire.MilliSatoshi(h.FeeBaseMSat)
        feeRate := lnwire.MilliSatoshi(h.FeeProportionalMillionths)

        return baseFee + (amt*feeRate)/feeRateParts
}

1	package zpay32
2
3	import (
4	"github.com/btcsuite/btcd/btcec/v2"
5	"github.com/lightningnetwork/lnd/lnwire"
6	)
7
8	const (
9	// DefaultAssumedFinalCLTVDelta is the default value to be used as the
10	// final CLTV delta for a route if one is unspecified in the payment
11	// request.
12	// We adhere to the recommendation in BOLT 02 for terminal payments.
13	// See also:
14	// https://github.com/lightning/bolts/blob/master/02-peer-protocol.md
15	DefaultAssumedFinalCLTVDelta = 18
16
17	// feeRateParts is the total number of parts used to express fee rates.
18	feeRateParts = 1e6
19	)
20
21	// HopHint is a routing hint that contains the minimum information of a channel
22	// required for an intermediate hop in a route to forward the payment to the
23	// next. This should be ideally used for private channels, since they are not
24	// publicly advertised to the network for routing.
25	type HopHint struct {
26	// NodeID is the public key of the node at the start of the channel.
27	NodeID *btcec.PublicKey
28
29	// ChannelID is the unique identifier of the channel.
30	ChannelID uint64
31
32	// FeeBaseMSat is the base fee of the channel in millisatoshis.
33	FeeBaseMSat uint32
34
35	// FeeProportionalMillionths is the fee rate, in millionths of a
36	// satoshi, for every satoshi sent through the channel.
37	FeeProportionalMillionths uint32
38
39	// CLTVExpiryDelta is the time-lock delta of the channel.
40	CLTVExpiryDelta uint16
41	}
42
43	// Copy returns a deep copy of the hop hint.
44	func (h HopHint) Copy() HopHint {	×
45	nodeID := *h.NodeID	×
46	return HopHint{	×
47	NodeID: &nodeID,	×
48	ChannelID: h.ChannelID,	×
49	FeeBaseMSat: h.FeeBaseMSat,	×
50	FeeProportionalMillionths: h.FeeProportionalMillionths,	×
51	CLTVExpiryDelta: h.CLTVExpiryDelta,	×
52	}	×
53	}	×
54
55	// HopFee calculates the fee for a given amount that is forwarded over a hop.
56	// The amount has to be denoted in milli satoshi. The returned fee is also
57	// denoted in milli satoshi.
UNCOV 58	func (h HopHint) HopFee(amt lnwire.MilliSatoshi) lnwire.MilliSatoshi {	×
UNCOV 59	baseFee := lnwire.MilliSatoshi(h.FeeBaseMSat)	×
UNCOV 60	feeRate := lnwire.MilliSatoshi(h.FeeProportionalMillionths)	×
UNCOV 61		×
UNCOV 62	return baseFee + (amt*feeRate)/feeRateParts	×
UNCOV 63	}	×

lightningnetwork / lnd / 12343072627

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