lnd/lnwire/funding_signed.go
yyforyongyu 563ff7266a
lnwire: refactor Encode to use specific writers - I
This commit takes 10 types of messages and refactors their Encode method
to use specific writers. The following commits will refactor the rest.
2021-08-10 05:36:09 +08:00

63 lines
1.9 KiB
Go

package lnwire
import (
"bytes"
"io"
)
// FundingSigned is sent from Bob (the responder) to Alice (the initiator)
// after receiving the funding outpoint and her signature for Bob's version of
// the commitment transaction.
type FundingSigned struct {
// ChannelPoint is the particular active channel that this
// FundingSigned is bound to.
ChanID ChannelID
// CommitSig is Bob's signature for Alice's version of the commitment
// transaction.
CommitSig Sig
// ExtraData is the set of data that was appended to this message to
// fill out the full maximum transport message size. These fields can
// be used to specify optional data such as custom TLV fields.
ExtraData ExtraOpaqueData
}
// A compile time check to ensure FundingSigned implements the lnwire.Message
// interface.
var _ Message = (*FundingSigned)(nil)
// Encode serializes the target FundingSigned into the passed io.Writer
// implementation. Serialization will observe the rules defined by the passed
// protocol version.
//
// This is part of the lnwire.Message interface.
func (f *FundingSigned) Encode(w *bytes.Buffer, pver uint32) error {
if err := WriteChannelID(w, f.ChanID); err != nil {
return err
}
if err := WriteSig(w, f.CommitSig); err != nil {
return err
}
return WriteBytes(w, f.ExtraData)
}
// Decode deserializes the serialized FundingSigned stored in the passed
// io.Reader into the target FundingSigned using the deserialization rules
// defined by the passed protocol version.
//
// This is part of the lnwire.Message interface.
func (f *FundingSigned) Decode(r io.Reader, pver uint32) error {
return ReadElements(r, &f.ChanID, &f.CommitSig, &f.ExtraData)
}
// MsgType returns the uint32 code which uniquely identifies this message as a
// FundingSigned on the wire.
//
// This is part of the lnwire.Message interface.
func (f *FundingSigned) MsgType() MessageType {
return MsgFundingSigned
}