mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
64 lines
1.6 KiB
Go
64 lines
1.6 KiB
Go
// Copyright 2016 The etcd Authors
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package mvcc
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import (
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"encoding/binary"
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"fmt"
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"go.etcd.io/etcd/mvcc/backend"
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"go.etcd.io/etcd/mvcc/mvccpb"
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)
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func UpdateConsistentIndex(be backend.Backend, index uint64) {
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tx := be.BatchTx()
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tx.Lock()
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defer tx.Unlock()
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var oldi uint64
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_, vs := tx.UnsafeRange(metaBucketName, consistentIndexKeyName, nil, 0)
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if len(vs) != 0 {
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oldi = binary.BigEndian.Uint64(vs[0])
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}
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if index <= oldi {
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return
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}
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bs := make([]byte, 8)
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binary.BigEndian.PutUint64(bs, index)
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tx.UnsafePut(metaBucketName, consistentIndexKeyName, bs)
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}
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func WriteKV(be backend.Backend, kv mvccpb.KeyValue) {
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ibytes := newRevBytes()
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revToBytes(revision{main: kv.ModRevision}, ibytes)
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d, err := kv.Marshal()
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if err != nil {
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panic(fmt.Errorf("cannot marshal event: %v", err))
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}
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be.BatchTx().Lock()
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be.BatchTx().UnsafePut(keyBucketName, ibytes, d)
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be.BatchTx().Unlock()
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}
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func UnsafeSetScheduledCompact(tx backend.BatchTx, value int64) {
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rbytes := newRevBytes()
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revToBytes(revision{main: value}, rbytes)
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tx.UnsafePut(metaBucketName, scheduledCompactKeyName, rbytes)
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}
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