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eb9bfaa983
Add a UnsafeReadScheduledCompact and UnsafeReadFinishedCompact Signed-off-by: caojiamingalan <alan.c.19971111@gmail.com>
60 lines
1.8 KiB
Go
60 lines
1.8 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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"fmt"
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"go.etcd.io/etcd/api/v3/mvccpb"
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"go.etcd.io/etcd/server/v3/mvcc/backend"
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"go.etcd.io/etcd/server/v3/mvcc/buckets"
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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().LockOutsideApply()
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be.BatchTx().UnsafePut(buckets.Key, 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(buckets.Meta, scheduledCompactKeyName, rbytes)
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}
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func UnsafeReadFinishedCompact(tx backend.ReadTx) (int64, bool) {
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_, finishedCompactBytes := tx.UnsafeRange(buckets.Meta, finishedCompactKeyName, nil, 0)
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if len(finishedCompactBytes) != 0 {
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return bytesToRev(finishedCompactBytes[0]).main, true
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}
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return 0, false
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}
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func UnsafeReadScheduledCompact(tx backend.ReadTx) (int64, bool) {
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_, scheduledCompactBytes := tx.UnsafeRange(buckets.Meta, scheduledCompactKeyName, nil, 0)
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if len(scheduledCompactBytes) != 0 {
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return bytesToRev(scheduledCompactBytes[0]).main, true
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}
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return 0, false
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}
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