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https://gitee.com/milvus-io/milvus.git
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8aae0f7cc9
* Refactor flow graph and load/watchDML in query node Signed-off-by: bigsheeper <yihao.dai@zilliz.com>
99 lines
2.6 KiB
Go
99 lines
2.6 KiB
Go
// Copyright (C) 2019-2020 Zilliz. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "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 distributed under the License
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// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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// or implied. See the License for the specific language governing permissions and 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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)
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// TSafeReplicaInterface is the interface wrapper of tSafeReplica
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type TSafeReplicaInterface interface {
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getTSafe(vChannel VChannel) Timestamp
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setTSafe(vChannel VChannel, timestamp Timestamp)
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addTSafe(vChannel VChannel)
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removeTSafe(vChannel VChannel)
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registerTSafeWatcher(vChannel VChannel, watcher *tSafeWatcher)
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}
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type tSafeReplica struct {
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mu sync.Mutex // guards tSafes
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tSafes map[string]tSafer // map[vChannel]tSafer
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}
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func (t *tSafeReplica) getTSafe(vChannel VChannel) Timestamp {
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t.mu.Lock()
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defer t.mu.Unlock()
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safer, err := t.getTSaferPrivate(vChannel)
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if err != nil {
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//log.Error("get tSafe failed", zap.Error(err))
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return 0
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}
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return safer.get()
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}
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func (t *tSafeReplica) setTSafe(vChannel VChannel, timestamp Timestamp) {
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t.mu.Lock()
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defer t.mu.Unlock()
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safer, err := t.getTSaferPrivate(vChannel)
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if err != nil {
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//log.Error("set tSafe failed", zap.Error(err))
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return
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}
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safer.set(timestamp)
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}
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func (t *tSafeReplica) getTSaferPrivate(vChannel VChannel) (tSafer, 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.Error(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 VChannel) {
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t.mu.Lock()
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defer t.mu.Unlock()
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t.tSafes[vChannel] = newTSafe()
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//log.Debug("add tSafe done", zap.Any("channel", vChannel))
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}
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func (t *tSafeReplica) removeTSafe(vChannel VChannel) {
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t.mu.Lock()
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defer t.mu.Unlock()
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safer, err := t.getTSaferPrivate(vChannel)
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if err != nil {
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return
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}
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safer.close()
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delete(t.tSafes, vChannel)
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}
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func (t *tSafeReplica) registerTSafeWatcher(vChannel VChannel, watcher *tSafeWatcher) {
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t.mu.Lock()
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defer t.mu.Unlock()
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safer, err := t.getTSaferPrivate(vChannel)
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if err != nil {
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//log.Error("register tSafe watcher failed", zap.Error(err))
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return
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}
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safer.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]tSafer),
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}
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return replica
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}
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