Release v0.3.0

vendor/github.com/ltcsuite/ltcd/wire/msggetcfcheckpt.go

@@ -0,0 +1,64 @@
+// Copyright (c) 2018 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/ltcsuite/ltcd/chaincfg/chainhash"
+)
+
+// MsgGetCFCheckpt is a request for filter headers at evenly spaced intervals
+// throughout the blockchain history. It allows to set the FilterType field to
+// get headers in the chain of basic (0x00) or extended (0x01) headers.
+type MsgGetCFCheckpt struct {
+	FilterType FilterType
+	StopHash   chainhash.Hash
+}
+
+// BtcDecode decodes r using the bitcoin protocol encoding into the receiver.
+// This is part of the Message interface implementation.
+func (msg *MsgGetCFCheckpt) BtcDecode(r io.Reader, pver uint32, _ MessageEncoding) error {
+	err := readElement(r, &msg.FilterType)
+	if err != nil {
+		return err
+	}
+
+	return readElement(r, &msg.StopHash)
+}
+
+// BtcEncode encodes the receiver to w using the bitcoin protocol encoding.
+// This is part of the Message interface implementation.
+func (msg *MsgGetCFCheckpt) BtcEncode(w io.Writer, pver uint32, _ MessageEncoding) error {
+	err := writeElement(w, msg.FilterType)
+	if err != nil {
+		return err
+	}
+
+	return writeElement(w, &msg.StopHash)
+}
+
+// Command returns the protocol command string for the message.  This is part
+// of the Message interface implementation.
+func (msg *MsgGetCFCheckpt) Command() string {
+	return CmdGetCFCheckpt
+}
+
+// MaxPayloadLength returns the maximum length the payload can be for the
+// receiver.  This is part of the Message interface implementation.
+func (msg *MsgGetCFCheckpt) MaxPayloadLength(pver uint32) uint32 {
+	// Filter type + uint32 + block hash
+	return 1 + chainhash.HashSize
+}
+
+// NewMsgGetCFCheckpt returns a new bitcoin getcfcheckpt message that conforms
+// to the Message interface using the passed parameters and defaults for the
+// remaining fields.
+func NewMsgGetCFCheckpt(filterType FilterType, stopHash *chainhash.Hash) *MsgGetCFCheckpt {
+	return &MsgGetCFCheckpt{
+		FilterType: filterType,
+		StopHash:   *stopHash,
+	}
+}