etcd/rafthttp/util.go

48 lines
1.2 KiB
Go

// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package rafthttp
import (
"encoding/binary"
"io"
"github.com/coreos/etcd/raft/raftpb"
)
func writeEntryTo(w io.Writer, ent *raftpb.Entry) error {
size := ent.Size()
if err := binary.Write(w, binary.BigEndian, uint64(size)); err != nil {
return err
}
b, err := ent.Marshal()
if err != nil {
return err
}
_, err = w.Write(b)
return err
}
func readEntryFrom(r io.Reader, ent *raftpb.Entry) error {
var l uint64
if err := binary.Read(r, binary.BigEndian, &l); err != nil {
return err
}
buf := make([]byte, int(l))
if _, err := io.ReadFull(r, buf); err != nil {
return err
}
return ent.Unmarshal(buf)
}