neoneo-go/pkg/core/header.go
Anthony De Meulemeester a67728628e
Persist blockchain with leveldb on disk (#48)
* Created test_data folder with block json files for testing + create separate file for block base.

* Fixed bug in WriteVarUint + Trim logic + unit tests

* Refactored store and add more tests for it.

* restore headerList from chain file

* Fix tx decode bug + lots of housekeeping.

* Implemented Node restore state from chain file.

* Created standalone package for storage. Added couple more methods to Batch and Store interfaces.

* Block persisting + tests

* bumped version -> 0.31.0
2018-03-17 12:53:21 +01:00

38 lines
777 B
Go

package core
import (
"encoding/binary"
"fmt"
"io"
)
// Header holds the head info of a block.
type Header struct {
// Base of the block.
BlockBase
// Padding that is fixed to 0
_ uint8
}
// DecodeBinary impelements the Payload interface.
func (h *Header) DecodeBinary(r io.Reader) error {
if err := h.BlockBase.DecodeBinary(r); err != nil {
return err
}
var padding uint8
binary.Read(r, binary.LittleEndian, &padding)
if padding != 0 {
return fmt.Errorf("format error: padding must equal 0 got %d", padding)
}
return nil
}
// EncodeBinary impelements the Payload interface.
func (h *Header) EncodeBinary(w io.Writer) error {
if err := h.BlockBase.EncodeBinary(w); err != nil {
return err
}
return binary.Write(w, binary.LittleEndian, uint8(0))
}