neo-go/pkg/core/spent_coin_state.go
Vsevolod Brekelov ec17654986 core: refactoring blockchain state and storage
add dao which takes care about all CRUD operations on storage
remove blockchain state since everything is stored on change
remove storage operations from structs(entities)
move structs to entities package
2019-12-11 13:05:31 +03:00

53 lines
1.2 KiB
Go

package core
import (
"github.com/CityOfZion/neo-go/pkg/io"
"github.com/CityOfZion/neo-go/pkg/util"
)
// SpentCoinState represents the state of a spent coin.
type SpentCoinState struct {
txHash util.Uint256
txHeight uint32
// A mapping between the index of the prevIndex and block height.
items map[uint16]uint32
}
// NewSpentCoinState returns a new SpentCoinState object.
func NewSpentCoinState(hash util.Uint256, height uint32) *SpentCoinState {
return &SpentCoinState{
txHash: hash,
txHeight: height,
items: make(map[uint16]uint32),
}
}
// DecodeBinary implements Serializable interface.
func (s *SpentCoinState) DecodeBinary(br *io.BinReader) {
br.ReadBytes(s.txHash[:])
br.ReadLE(&s.txHeight)
s.items = make(map[uint16]uint32)
lenItems := br.ReadVarUint()
for i := 0; i < int(lenItems); i++ {
var (
key uint16
value uint32
)
br.ReadLE(&key)
br.ReadLE(&value)
s.items[key] = value
}
}
// EncodeBinary implements Serializable interface.
func (s *SpentCoinState) EncodeBinary(bw *io.BinWriter) {
bw.WriteBytes(s.txHash[:])
bw.WriteLE(s.txHeight)
bw.WriteVarUint(uint64(len(s.items)))
for k, v := range s.items {
bw.WriteLE(k)
bw.WriteLE(v)
}
}