7569cca19b
To avoid code changing underneath the static migrations, we copy the lnwire dependency in its current form into the migration directory. Ideally the migrations doesn't depend on any code that might change, this takes us a step closer.
79 lines
2.1 KiB
Go
79 lines
2.1 KiB
Go
package lnwire
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import (
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"io"
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)
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// UpdateFee is the message the channel initiator sends to the other peer if
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// the channel commitment fee needs to be updated.
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type UpdateFee struct {
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// ChanID is the channel that this UpdateFee is meant for.
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ChanID ChannelID
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// FeePerKw is the fee-per-kw on commit transactions that the sender of
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// this message wants to use for this channel.
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//
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// TODO(halseth): make SatPerKWeight when fee estimation is moved to
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// own package. Currently this will cause an import cycle.
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FeePerKw uint32
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}
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// NewUpdateFee creates a new UpdateFee message.
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func NewUpdateFee(chanID ChannelID, feePerKw uint32) *UpdateFee {
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return &UpdateFee{
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ChanID: chanID,
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FeePerKw: feePerKw,
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}
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}
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// A compile time check to ensure UpdateFee implements the lnwire.Message
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// interface.
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var _ Message = (*UpdateFee)(nil)
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// Decode deserializes a serialized UpdateFee message stored in the passed
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// io.Reader observing the specified protocol version.
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//
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// This is part of the lnwire.Message interface.
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func (c *UpdateFee) 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.FeePerKw,
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)
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}
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// Encode serializes the target UpdateFee into the passed io.Writer
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// observing the protocol version specified.
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//
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// This is part of the lnwire.Message interface.
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func (c *UpdateFee) 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.FeePerKw,
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)
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}
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// MsgType returns the integer uniquely identifying this message type on the
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// wire.
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//
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// This is part of the lnwire.Message interface.
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func (c *UpdateFee) MsgType() MessageType {
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return MsgUpdateFee
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}
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// MaxPayloadLength returns the maximum allowed payload size for an UpdateFee
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// complete message observing the specified protocol version.
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//
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// This is part of the lnwire.Message interface.
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func (c *UpdateFee) MaxPayloadLength(uint32) uint32 {
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// 32 + 4
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return 36
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}
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// TargetChanID returns the channel id of the link for which this message is
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// intended.
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//
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// NOTE: Part of peer.LinkUpdater interface.
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func (c *UpdateFee) TargetChanID() ChannelID {
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return c.ChanID
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}
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