mirror of
https://github.com/nxshock/zkv.git
synced 2024-11-27 11:21:02 +05:00
47 lines
796 B
Go
47 lines
796 B
Go
package zkv
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import (
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"bytes"
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"crypto/sha256"
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"encoding/gob"
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"io"
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"io/ioutil"
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)
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func encode(value interface{}) ([]byte, error) {
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buf := new(bytes.Buffer)
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err := gob.NewEncoder(buf).Encode(value)
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return buf.Bytes(), err
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}
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func decode(b []byte, value interface{}) error {
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return gob.NewDecoder(bytes.NewReader(b)).Decode(value)
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}
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func hashInterface(value interface{}) ([]byte, error) {
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valueBytes, err := encode(value)
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if err != nil {
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return nil, err
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}
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return hashBytes(valueBytes), nil
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}
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func hashBytes(b []byte) []byte {
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bytes := sha256.Sum224(b)
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return bytes[:]
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}
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func skip(r io.Reader, count int64) (err error) {
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switch r := r.(type) {
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case io.Seeker:
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_, err = r.Seek(count, io.SeekCurrent)
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default:
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_, err = io.CopyN(ioutil.Discard, r, count)
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}
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return err
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}
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