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rpcserver: implement the ListChannels RPC

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This commit is contained in:
Olaoluwa Osuntokun 2016-09-25 20:04:03 -07:00
parent 68c4f0432e
commit 7a6905d697
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GPG key ID: 9CC5B105D03521A2
1 changed files with 42 additions and 14 deletions
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56
rpcserver.go
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@ -354,20 +354,6 @@ func (r *rpcServer) ListPeers(ctx context.Context,
BytesSent: atomic.LoadUint64(&serverPeer.bytesSent), BytesSent: atomic.LoadUint64(&serverPeer.bytesSent),
} }
chanSnapshots := serverPeer.ChannelSnapshots()
peer.Channels = make([]*lnrpc.ActiveChannel, 0, len(chanSnapshots))
for _, chanSnapshot := range chanSnapshots {
channel := &lnrpc.ActiveChannel{
RemoteId: lnID,
ChannelPoint: chanSnapshot.ChannelPoint.String(),
Capacity: int64(chanSnapshot.Capacity),
LocalBalance: int64(chanSnapshot.LocalBalance),
RemoteBalance: int64(chanSnapshot.RemoteBalance),
NumUpdates: chanSnapshot.NumUpdates,
}
peer.Channels = append(peer.Channels, channel)
}
resp.Peers = append(resp.Peers, peer) resp.Peers = append(resp.Peers, peer)
} }
@ -446,6 +432,48 @@ func (r *rpcServer) PendingChannels(ctx context.Context,
}, nil }, nil
} }
// ListChannels returns a description of all direct active, open channels the
// node knows of.
// TODO(roasbeef): read all active channels from the DB?
// * add 'online' toggle bit
func (r *rpcServer) ListChannels(ctx context.Context,
in *lnrpc.ListChannelsRequest) (*lnrpc.ListChannelsResponse, error) {
resp := &lnrpc.ListChannelsResponse{}
peers := r.server.Peers()
for _, peer := range peers {
lnID := hex.EncodeToString(peer.identityPub.SerializeCompressed())
chanSnapshots := peer.ChannelSnapshots()
for _, chanSnapshot := range chanSnapshots {
channel := &lnrpc.ActiveChannel{
RemotePubkey: lnID,
ChannelPoint: chanSnapshot.ChannelPoint.String(),
Capacity: int64(chanSnapshot.Capacity),
LocalBalance: int64(chanSnapshot.LocalBalance),
RemoteBalance: int64(chanSnapshot.RemoteBalance),
NumUpdates: chanSnapshot.NumUpdates,
PendingHtlcs: make([]*lnrpc.HTLC, len(chanSnapshot.Htlcs)),
}
for i, htlc := range chanSnapshot.Htlcs {
channel.PendingHtlcs[i] = &lnrpc.HTLC{
Incoming: htlc.Incoming,
Amount: int64(htlc.Amt),
HashLock: htlc.RHash[:],
ExpirationHeight: htlc.RefundTimeout,
RevocationDelay: htlc.RevocationDelay,
}
}
resp.Channels = append(resp.Channels, channel)
}
}
return resp, nil
}
// SendPayment dispatches a bi-directional streaming RPC for sending payments // SendPayment dispatches a bi-directional streaming RPC for sending payments
// through the Lightning Network. A single RPC invocation creates a persistent // through the Lightning Network. A single RPC invocation creates a persistent
// bi-directional stream allowing clients to rapidly send payments through the // bi-directional stream allowing clients to rapidly send payments through the