neoneo-go/pkg/network/payload/getblockbyindex.go
Elizaveta Chichindaeva 28908aa3cf [#2442] English Check
Signed-off-by: Elizaveta Chichindaeva <elizaveta@nspcc.ru>
2022-05-04 19:48:27 +03:00

36 lines
898 B
Go

package payload
import (
"errors"
"github.com/nspcc-dev/neo-go/pkg/io"
)
// GetBlockByIndex payload.
type GetBlockByIndex struct {
IndexStart uint32
Count int16
}
// NewGetBlockByIndex returns GetBlockByIndex payload with the specified start index and count.
func NewGetBlockByIndex(indexStart uint32, count int16) *GetBlockByIndex {
return &GetBlockByIndex{
IndexStart: indexStart,
Count: count,
}
}
// DecodeBinary implements the Serializable interface.
func (d *GetBlockByIndex) DecodeBinary(br *io.BinReader) {
d.IndexStart = br.ReadU32LE()
d.Count = int16(br.ReadU16LE())
if d.Count < -1 || d.Count == 0 || d.Count > MaxHeadersAllowed {
br.Err = errors.New("invalid block count")
}
}
// EncodeBinary implements the Serializable interface.
func (d *GetBlockByIndex) EncodeBinary(bw *io.BinWriter) {
bw.WriteU32LE(d.IndexStart)
bw.WriteU16LE(uint16(d.Count))
}