1// Copyright 2017 The etcd Authors 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// http://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15package mvcc 16 17import ( 18 "github.com/coreos/etcd/lease" 19) 20 21type readView struct{ kv KV } 22 23func (rv *readView) FirstRev() int64 { 24 tr := rv.kv.Read() 25 defer tr.End() 26 return tr.FirstRev() 27} 28 29func (rv *readView) Rev() int64 { 30 tr := rv.kv.Read() 31 defer tr.End() 32 return tr.Rev() 33} 34 35func (rv *readView) Range(key, end []byte, ro RangeOptions) (r *RangeResult, err error) { 36 tr := rv.kv.Read() 37 defer tr.End() 38 return tr.Range(key, end, ro) 39} 40 41type writeView struct{ kv KV } 42 43func (wv *writeView) DeleteRange(key, end []byte) (n, rev int64) { 44 tw := wv.kv.Write() 45 defer tw.End() 46 return tw.DeleteRange(key, end) 47} 48 49func (wv *writeView) Put(key, value []byte, lease lease.LeaseID) (rev int64) { 50 tw := wv.kv.Write() 51 defer tw.End() 52 return tw.Put(key, value, lease) 53} 54