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msgmwebheader.go
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/
msgmwebheader.go
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// Copyright (c) 2024 The ltcsuite developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package wire
import (
"fmt"
"io"
)
// MsgMwebHeader implements the Message interface and represents a litecoin
// mwebheader message which is used for syncing MWEB headers.
//
// This message was not added until protocol version MwebLightClientVersion.
type MsgMwebHeader struct {
Merkle MsgMerkleBlock
Hogex MsgTx
MwebHeader MwebHeader
}
// BtcDecode decodes r using the litecoin protocol encoding into the receiver.
// This is part of the Message interface implementation.
func (msg *MsgMwebHeader) BtcDecode(r io.Reader, pver uint32, enc MessageEncoding) error {
if pver < MwebLightClientVersion {
str := fmt.Sprintf("mwebheader message invalid for protocol "+
"version %d", pver)
return messageError("MsgMwebHeader.BtcDecode", str)
}
err := msg.Merkle.BtcDecode(r, pver, enc)
if err != nil {
return err
}
err = msg.Hogex.BtcDecode(r, pver, enc)
if err != nil {
return err
}
return msg.MwebHeader.read(r)
}
// BtcEncode encodes the receiver to w using the litecoin protocol encoding.
// This is part of the Message interface implementation.
func (msg *MsgMwebHeader) BtcEncode(w io.Writer, pver uint32, enc MessageEncoding) error {
if pver < MwebLightClientVersion {
str := fmt.Sprintf("mwebheader message invalid for protocol "+
"version %d", pver)
return messageError("MsgMwebHeader.BtcEncode", str)
}
err := msg.Merkle.BtcEncode(w, pver, enc)
if err != nil {
return err
}
err = msg.Hogex.BtcEncode(w, pver, enc)
if err != nil {
return err
}
return msg.MwebHeader.write(w)
}
// Command returns the protocol command string for the message. This is part
// of the Message interface implementation.
func (msg *MsgMwebHeader) Command() string {
return CmdMwebHeader
}
// MaxPayloadLength returns the maximum length the payload can be for the
// receiver. This is part of the Message interface implementation.
func (msg *MsgMwebHeader) MaxPayloadLength(pver uint32) uint32 {
return MaxBlockPayload
}
// NewMsgMwebHeader returns a new litecoin mwebheader message that conforms to
// the Message interface. See MsgMwebHeader for details.
func NewMsgMwebHeader(mb *MsgMerkleBlock, hogex *MsgTx, mh *MwebHeader) *MsgMwebHeader {
return &MsgMwebHeader{
Merkle: *mb,
Hogex: *hogex,
MwebHeader: *mh,
}
}