package lnwire import ( "io" "github.com/roasbeef/btcutil" ) // UpdateFee is the message the channel initiator sends to the other peer if // the channel commitment fee needs to be updated. type UpdateFee struct { // ChanID is the channel that this UpdateFee is meant for. ChanID ChannelID // FeePerKw is the fee-per-kw on commit transactions that the sender of // this message wants to use for this channel. FeePerKw btcutil.Amount } // NewUpdateFee creates a new UpdateFee message. func NewUpdateFee(chanID ChannelID, feePerKw btcutil.Amount) *UpdateFee { return &UpdateFee{ ChanID: chanID, FeePerKw: feePerKw, } } // A compile time check to ensure UpdateFee implements the lnwire.Message // interface. var _ Message = (*UpdateFee)(nil) // Decode deserializes a serialized UpdateFee message stored in the passed // io.Reader observing the specified protocol version. // // This is part of the lnwire.Message interface. func (c *UpdateFee) Decode(r io.Reader, pver uint32) error { return readElements(r, &c.ChanID, &c.FeePerKw, ) } // Encode serializes the target UpdateFee into the passed io.Writer // observing the protocol version specified. // // This is part of the lnwire.Message interface. func (c *UpdateFee) Encode(w io.Writer, pver uint32) error { return writeElements(w, c.ChanID, c.FeePerKw, ) } // MsgType returns the integer uniquely identifying this message type on the // wire. // // This is part of the lnwire.Message interface. func (c *UpdateFee) MsgType() MessageType { return MsgUpdateFee } // MaxPayloadLength returns the maximum allowed payload size for a UpdateFee // complete message observing the specified protocol version. // // This is part of the lnwire.Message interface. func (c *UpdateFee) MaxPayloadLength(uint32) uint32 { // 32 + 8 return 40 }