84 lines
2.5 KiB
Go
84 lines
2.5 KiB
Go
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package lnwire
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import (
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"io"
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"github.com/btcsuite/btcd/btcec"
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)
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// FundingLocked is the message that both parties to a new channel creation
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// send once they have observed the funding transaction being confirmed on the
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// blockchain. FundingLocked contains the signatures necessary for the channel
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// participants to advertise the existence of the channel to the rest of the
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// network.
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type FundingLocked struct {
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// ChanID is the outpoint of the channel's funding transaction. This
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// can be used to query for the channel in the database.
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ChanID ChannelID
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// NextPerCommitmentPoint is the secret that can be used to revoke the
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// next commitment transaction for the channel.
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NextPerCommitmentPoint *btcec.PublicKey
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}
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// NewFundingLocked creates a new FundingLocked message, populating it with the
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// necessary IDs and revocation secret.
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func NewFundingLocked(cid ChannelID, npcp *btcec.PublicKey) *FundingLocked {
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return &FundingLocked{
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ChanID: cid,
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NextPerCommitmentPoint: npcp,
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}
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}
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// A compile time check to ensure FundingLocked implements the lnwire.Message
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// interface.
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var _ Message = (*FundingLocked)(nil)
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// Decode deserializes the serialized FundingLocked message stored in the
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// passed io.Reader into the target FundingLocked using the deserialization
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// rules defined by the passed protocol version.
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//
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// This is part of the lnwire.Message interface.
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func (c *FundingLocked) Decode(r io.Reader, pver uint32) error {
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return ReadElements(r,
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&c.ChanID,
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&c.NextPerCommitmentPoint)
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}
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// Encode serializes the target FundingLocked message into the passed io.Writer
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// implementation. Serialization will observe the rules defined by the passed
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// protocol version.
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//
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// This is part of the lnwire.Message interface.
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func (c *FundingLocked) Encode(w io.Writer, pver uint32) error {
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return WriteElements(w,
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c.ChanID,
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c.NextPerCommitmentPoint)
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}
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// MsgType returns the uint32 code which uniquely identifies this message as a
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// FundingLocked message on the wire.
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//
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// This is part of the lnwire.Message interface.
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func (c *FundingLocked) MsgType() MessageType {
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return MsgFundingLocked
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}
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// MaxPayloadLength returns the maximum allowed payload length for a
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// FundingLocked message. This is calculated by summing the max length of all
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// the fields within a FundingLocked message.
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//
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// This is part of the lnwire.Message interface.
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func (c *FundingLocked) MaxPayloadLength(uint32) uint32 {
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var length uint32
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// ChanID - 32 bytes
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length += 32
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// NextPerCommitmentPoint - 33 bytes
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length += 33
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// 65 bytes
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return length
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}
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