lnd.xprv/lnwire/channel_reestablish.go

74 lines
2.1 KiB
Go
Raw Normal View History

package lnwire
import "io"
// ChannelReestablish is sent during node reconnection for every channel
// established in order to synchronize the states on both sides.
type ChannelReestablish struct {
// ChanID serves to identify to which channel this message belongs.
ChanID ChannelID
// NextLocalCommitmentNumber is the commitment number of the next
// commitment signed message it expects to receive.
NextLocalCommitmentNumber uint64
// NextRemoteRevocationNumber is the commitment number of the next
// revoke and ack message it expects to receive.
NextRemoteRevocationNumber uint64
}
// A compile time check to ensure ChannelReestablish implements the
// lnwire.Message interface.
var _ Message = (*ChannelReestablish)(nil)
// Decode deserializes a serialized ChannelReestablish stored in the passed
// io.Reader observing the specified protocol version.
//
// This is part of the lnwire.Message interface.
func (a *ChannelReestablish) Decode(r io.Reader, pver uint32) error {
return readElements(r,
&a.ChanID,
&a.NextLocalCommitmentNumber,
&a.NextRemoteRevocationNumber,
)
}
// Encode serializes the target ChannelReestablish into the passed io.Writer
// observing the protocol version specified.
//
// This is part of the lnwire.Message interface.
func (a *ChannelReestablish) Encode(w io.Writer, pver uint32) error {
return writeElements(w,
a.ChanID,
a.NextLocalCommitmentNumber,
a.NextRemoteRevocationNumber,
)
}
// MsgType returns the integer uniquely identifying this message type on the
// wire.
//
// This is part of the lnwire.Message interface.
func (a *ChannelReestablish) MsgType() MessageType {
return MsgChannelReestablish
}
// MaxPayloadLength returns the maximum allowed payload size for this message
// observing the specified protocol version.
//
// This is part of the lnwire.Message interface.
func (a *ChannelReestablish) MaxPayloadLength(pver uint32) uint32 {
var length uint32
// ChanID - 32 bytes
length += 32
// NextLocalCommitmentNumber - 8 bytes
length += 8
// NextRemoteRevocationNumber - 8 bytes
length += 8
return length
}