mirror of
https://gitee.com/milvus-io/milvus.git
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118 lines
3.1 KiB
Go
118 lines
3.1 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. 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 querynode
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import (
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"errors"
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"sync"
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"go.uber.org/zap"
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"github.com/milvus-io/milvus/internal/log"
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)
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// TSafeReplicaInterface is the interface wrapper of tSafeReplica
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type TSafeReplicaInterface interface {
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getTSafe(vChannel Channel) (Timestamp, error)
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setTSafe(vChannel Channel, timestamp Timestamp) error
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addTSafe(vChannel Channel)
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removeTSafe(vChannel Channel)
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registerTSafeWatcher(vChannel Channel, watcher *tSafeWatcher) error
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}
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// tSafeReplica implements `TSafeReplicaInterface` interface.
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type tSafeReplica struct {
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mu sync.Mutex // guards tSafes
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tSafes map[Channel]*tSafe // map[DMLChannel|deltaChannel]*tSafe
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}
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func (t *tSafeReplica) getTSafe(vChannel Channel) (Timestamp, error) {
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t.mu.Lock()
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defer t.mu.Unlock()
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ts, err := t.getTSafePrivate(vChannel)
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if err != nil {
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//log.Warn("get tSafe failed",
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// zap.Any("channel", vChannel),
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// zap.Error(err),
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//)
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return 0, err
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}
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return ts.get(), nil
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}
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func (t *tSafeReplica) setTSafe(vChannel Channel, timestamp Timestamp) error {
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t.mu.Lock()
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defer t.mu.Unlock()
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ts, err := t.getTSafePrivate(vChannel)
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if err != nil {
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return errors.New("set tSafe failed, err = " + err.Error())
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}
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ts.set(timestamp)
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return nil
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}
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func (t *tSafeReplica) getTSafePrivate(vChannel Channel) (*tSafe, error) {
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if _, ok := t.tSafes[vChannel]; !ok {
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err := errors.New("cannot found tSafer, vChannel = " + vChannel)
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//log.Warn(err.Error())
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return nil, err
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}
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return t.tSafes[vChannel], nil
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}
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func (t *tSafeReplica) addTSafe(vChannel Channel) {
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t.mu.Lock()
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defer t.mu.Unlock()
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if _, ok := t.tSafes[vChannel]; !ok {
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t.tSafes[vChannel] = newTSafe(vChannel)
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log.Debug("add tSafe done",
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zap.Any("channel", vChannel),
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)
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} else {
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log.Debug("tSafe has been existed",
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zap.Any("channel", vChannel),
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)
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}
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}
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func (t *tSafeReplica) removeTSafe(vChannel Channel) {
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t.mu.Lock()
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defer t.mu.Unlock()
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log.Debug("remove tSafe replica",
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zap.Any("vChannel", vChannel),
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)
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delete(t.tSafes, vChannel)
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}
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func (t *tSafeReplica) registerTSafeWatcher(vChannel Channel, watcher *tSafeWatcher) error {
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t.mu.Lock()
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defer t.mu.Unlock()
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ts, err := t.getTSafePrivate(vChannel)
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if err != nil {
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return err
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}
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return ts.registerTSafeWatcher(watcher)
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}
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func newTSafeReplica() TSafeReplicaInterface {
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var replica TSafeReplicaInterface = &tSafeReplica{
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tSafes: make(map[string]*tSafe),
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}
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return replica
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}
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