39 lines
894 B
Go
39 lines
894 B
Go
package payload
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import (
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"errors"
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"github.com/nspcc-dev/neo-go/pkg/io"
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)
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// maximum number of blocks to query about
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const maxBlockCount = 500
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// GetBlockData payload
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type GetBlockData struct {
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IndexStart uint32
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Count uint16
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}
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// NewGetBlockData returns GetBlockData payload with specified start index and count
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func NewGetBlockData(indexStart uint32, count uint16) *GetBlockData {
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return &GetBlockData{
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IndexStart: indexStart,
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Count: count,
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}
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}
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// DecodeBinary implements Serializable interface.
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func (d *GetBlockData) DecodeBinary(br *io.BinReader) {
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d.IndexStart = br.ReadU32LE()
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d.Count = br.ReadU16LE()
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if d.Count == 0 || d.Count > maxBlockCount {
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br.Err = errors.New("invalid block count")
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}
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}
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// EncodeBinary implements Serializable interface.
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func (d *GetBlockData) EncodeBinary(bw *io.BinWriter) {
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bw.WriteU32LE(d.IndexStart)
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bw.WriteU16LE(d.Count)
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}
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