mirror of
https://github.com/btcsuite/btcd.git
synced 2024-11-19 01:40:07 +01:00
48abfdf87c
This commit modifies the existing wire.Message interface to introduce a new MessageEncoding variant which dictates the exact encoding to be used when serializing and deserializing messages. Such an option is now necessary due to the segwit soft-fork package, as btcd will need to be able to optionally encode transactions/blocks without witness data to un-upgraded peers. Two new functions have been introduced: ReadMessageWithEncodingN and WriteMessageWithEncodingN which wrap BtcDecode/BtcEncode with the desired encoding format.
65 lines
2.0 KiB
Go
65 lines
2.0 KiB
Go
// Copyright (c) 2016 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 (
|
|
"fmt"
|
|
"io"
|
|
)
|
|
|
|
// MsgFeeFilter implements the Message interface and represents a bitcoin
|
|
// feefilter message. It is used to request the receiving peer does not
|
|
// announce any transactions below the specified minimum fee rate.
|
|
//
|
|
// This message was not added until protocol versions starting with
|
|
// FeeFilterVersion.
|
|
type MsgFeeFilter struct {
|
|
MinFee int64
|
|
}
|
|
|
|
// BtcDecode decodes r using the bitcoin protocol encoding into the receiver.
|
|
// This is part of the Message interface implementation.
|
|
func (msg *MsgFeeFilter) BtcDecode(r io.Reader, pver uint32, enc MessageEncoding) error {
|
|
if pver < FeeFilterVersion {
|
|
str := fmt.Sprintf("feefilter message invalid for protocol "+
|
|
"version %d", pver)
|
|
return messageError("MsgFeeFilter.BtcDecode", str)
|
|
}
|
|
|
|
return readElement(r, &msg.MinFee)
|
|
}
|
|
|
|
// BtcEncode encodes the receiver to w using the bitcoin protocol encoding.
|
|
// This is part of the Message interface implementation.
|
|
func (msg *MsgFeeFilter) BtcEncode(w io.Writer, pver uint32, enc MessageEncoding) error {
|
|
if pver < FeeFilterVersion {
|
|
str := fmt.Sprintf("feefilter message invalid for protocol "+
|
|
"version %d", pver)
|
|
return messageError("MsgFeeFilter.BtcEncode", str)
|
|
}
|
|
|
|
return writeElement(w, msg.MinFee)
|
|
}
|
|
|
|
// Command returns the protocol command string for the message. This is part
|
|
// of the Message interface implementation.
|
|
func (msg *MsgFeeFilter) Command() string {
|
|
return CmdFeeFilter
|
|
}
|
|
|
|
// MaxPayloadLength returns the maximum length the payload can be for the
|
|
// receiver. This is part of the Message interface implementation.
|
|
func (msg *MsgFeeFilter) MaxPayloadLength(pver uint32) uint32 {
|
|
return 8
|
|
}
|
|
|
|
// NewMsgFeeFilter returns a new bitcoin feefilter message that conforms to
|
|
// the Message interface. See MsgFeeFilter for details.
|
|
func NewMsgFeeFilter(minfee int64) *MsgFeeFilter {
|
|
return &MsgFeeFilter{
|
|
MinFee: minfee,
|
|
}
|
|
}
|