59 lines
1.8 KiB
Go
59 lines
1.8 KiB
Go
// Copyright (c) 2017 The btcsuite developers
|
|
// Use of this source code is governed by an ISC
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package wire
|
|
|
|
import (
|
|
"io"
|
|
|
|
"github.com/btcsuite/btcd/chaincfg/chainhash"
|
|
)
|
|
|
|
type MsgGetCFilterHeader struct {
|
|
ProtocolVersion uint32
|
|
BlockHash chainhash.Hash
|
|
Extended bool
|
|
}
|
|
|
|
func (msg *MsgGetCFilterHeader) BtcDecode(r io.Reader, pver uint32) error {
|
|
err := readElement(r, &msg.BlockHash)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return readElement(r, &msg.Extended)
|
|
}
|
|
|
|
// BtcEncode encodes the receiver to w using the bitcoin protocol encoding.
|
|
// This is part of the Message interface implementation.
|
|
func (msg *MsgGetCFilterHeader) BtcEncode(w io.Writer, pver uint32) error {
|
|
err := writeElement(w, &msg.BlockHash)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return writeElement(w, &msg.Extended)
|
|
}
|
|
|
|
// Command returns the protocol command string for the message. This is part
|
|
// of the Message interface implementation.
|
|
func (msg *MsgGetCFilterHeader) Command() string {
|
|
return CmdGetCFilterHeader
|
|
}
|
|
|
|
// MaxPayloadLength returns the maximum length the payload can be for the
|
|
// receiver. This is part of the Message interface implementation.
|
|
func (msg *MsgGetCFilterHeader) MaxPayloadLength(pver uint32) uint32 {
|
|
// Protocol version 4 bytes + block hash + Extended flag.
|
|
return 4 + chainhash.HashSize + 1
|
|
}
|
|
|
|
// NewMsgGetCFilterHeader returns a new bitcoin getcfilterheader message that
|
|
// conforms to the Message interface using the passed parameters and defaults
|
|
// for the remaining fields.
|
|
func NewMsgGetCFilterHeader(blockHash *chainhash.Hash, extended bool) *MsgGetCFilterHeader {
|
|
return &MsgGetCFilterHeader{
|
|
ProtocolVersion: ProtocolVersion,
|
|
BlockHash: *blockHash,
|
|
Extended: extended,
|
|
}
|
|
}
|