neo-go/pkg/core/store.go

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package core
type dataEntry uint8
func (e dataEntry) add(b []byte) []byte {
dest := make([]byte, len(b)+1)
dest[0] = byte(e)
for i := 1; i < len(b); i++ {
dest[i] = b[i]
}
return dest
}
func (e dataEntry) toSlice() []byte {
return []byte{byte(e)}
}
// Storage data entry prefixes.
const (
preDataBlock dataEntry = 0x01
preDataTransaction dataEntry = 0x02
preSTAccount dataEntry = 0x40
preSTCoin dataEntry = 0x44
preSTValidator dataEntry = 0x48
preSTAsset dataEntry = 0x4c
preSTContract dataEntry = 0x50
preSTStorage dataEntry = 0x70
preIXHeaderHashList dataEntry = 0x80
preIXValidatorsCount dataEntry = 0x90
preSYSCurrentBlock dataEntry = 0xc0
preSYSCurrentHeader dataEntry = 0xc1
preSYSVersion dataEntry = 0xf0
)
// Store is anything that can persist and retrieve the blockchain.
type Store interface {
write(k, v []byte) error
writeBatch(Batch) error
}
// Batch is a data type used to store data for later batch operations
// by any Store.
type Batch map[*[]byte][]byte