-
Notifications
You must be signed in to change notification settings - Fork 119
/
break.go
81 lines (66 loc) · 1.82 KB
/
break.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
package qln
import (
"fmt"
"github.com/mit-dci/lit/logging"
"github.com/mit-dci/lit/lnutil"
)
// ------------------------- break
func (nd *LitNode) BreakChannel(q *Qchan) error {
if nd.SubWallet[q.Coin()] == nil {
return fmt.Errorf("Not connected to coin type %d\n", q.Coin())
}
err := nd.ReloadQchanState(q)
if err != nil {
return err
}
if q.CloseData.Closed {
if q.CloseData.CloseHeight != 0 {
return fmt.Errorf("Can't break channel %d with peer %d, already closed\n", q.Idx(), q.Peer())
}
return fmt.Errorf("Can't break channel %d with peer %d, tx already broadcast, wait for confirmation.\n", q.Idx(), q.Peer())
}
logging.Infof("breaking (%d,%d)\n", q.Peer(), q.Idx())
// set delta to 0... needed for break
q.State.Delta = 0
for i, h := range q.State.HTLCs {
if !h.Cleared && h.Clearing {
q.State.HTLCs[i].Clearing = false
}
}
q.State.InProgHTLC = nil
q.State.CollidingHTLC = nil
tx, err := nd.SignBreakTx(q)
if err != nil {
return err
}
// broadcast break tx
err = nd.SubWallet[q.Coin()].PushTx(tx)
if err != nil {
return fmt.Errorf("Error while transmitting break tx, try again!")
}
// save channel state only after tx is broadcast
err = nd.SaveQchanUtxoData(q)
if err != nil {
return err
}
// set channel state to closed
nd.RemoteMtx.Lock()
q.CloseData.Closed = true
nd.RemoteMtx.Unlock()
q.CloseData.CloseTxid = tx.TxHash()
return nil
}
func (nd *LitNode) PrintBreakTxForDebugging(q *Qchan) error {
logging.Info("===== BUILDING Break TX for state [%d]:", q.State.StateIdx)
saveDelta := q.State.Delta
q.State.Delta = 0
tx, err := nd.SignBreakTx(q)
q.State.Delta = saveDelta
if err != nil {
return err
}
logging.Info("===== DONE BUILDING Break TX for state [%d]:", q.State.StateIdx)
logging.Info("Break TX for state [%d]:", q.State.StateIdx)
lnutil.PrintTx(tx)
return nil
}