59 lines
1.3 KiB
Go
59 lines
1.3 KiB
Go
/*
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Copyright 2014 CoreOS Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package wal
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import (
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"encoding/binary"
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"io"
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)
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func writeRecord(w io.Writer, rec *Record) error {
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data, err := rec.Marshal()
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if err != nil {
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return err
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}
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if err := writeInt64(w, int64(len(data))); err != nil {
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return err
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}
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_, err = w.Write(data)
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return err
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}
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func readRecord(r io.Reader, rec *Record) error {
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rec.Reset()
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l, err := readInt64(r)
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if err != nil {
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return err
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}
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d := make([]byte, l)
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if _, err = io.ReadFull(r, d); err != nil {
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return err
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}
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return rec.Unmarshal(d)
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}
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func writeInt64(w io.Writer, n int64) error {
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return binary.Write(w, binary.LittleEndian, n)
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}
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func readInt64(r io.Reader) (int64, error) {
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var n int64
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err := binary.Read(r, binary.LittleEndian, &n)
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return n, err
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}
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