mirror of
https://gitee.com/milvus-io/milvus.git
synced 2024-12-03 12:29:36 +08:00
84 lines
2.5 KiB
Go
84 lines
2.5 KiB
Go
// Licensed to the LF AI & Data foundation under one
|
|
// or more contributor license agreements. See the NOTICE file
|
|
// distributed with this work for additional information
|
|
// regarding copyright ownership. The ASF licenses this file
|
|
// to you under the Apache License, Version 2.0 (the
|
|
// "License"); you may not use this file except in compliance
|
|
// with the License. You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package querynode
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"fmt"
|
|
"sync"
|
|
)
|
|
|
|
type queryShardService struct {
|
|
ctx context.Context
|
|
cancel context.CancelFunc
|
|
|
|
queryShardsMu sync.Mutex // guards queryShards
|
|
queryShards map[Channel]*queryShard // Virtual Channel -> *queryShard
|
|
}
|
|
|
|
func newQueryShardService(ctx context.Context) *queryShardService {
|
|
queryShardServiceCtx, queryShardServiceCancel := context.WithCancel(ctx)
|
|
qss := &queryShardService{
|
|
ctx: queryShardServiceCtx,
|
|
cancel: queryShardServiceCancel,
|
|
queryShards: make(map[Channel]*queryShard),
|
|
}
|
|
return qss
|
|
}
|
|
|
|
func (q *queryShardService) addQueryShard(collectionID UniqueID, channel Channel) error {
|
|
q.queryShardsMu.Lock()
|
|
defer q.queryShardsMu.Unlock()
|
|
if _, ok := q.queryShards[channel]; ok {
|
|
return errors.New(fmt.Sprintln("query shard(channel) ", channel, " already exists"))
|
|
}
|
|
qs := newQueryShard(
|
|
q.ctx,
|
|
collectionID,
|
|
channel,
|
|
)
|
|
q.queryShards[channel] = qs
|
|
return nil
|
|
}
|
|
|
|
func (q *queryShardService) removeQueryShard(channel Channel) error {
|
|
q.queryShardsMu.Lock()
|
|
defer q.queryShardsMu.Unlock()
|
|
if _, ok := q.queryShards[channel]; !ok {
|
|
return errors.New(fmt.Sprintln("query shard(channel) ", channel, " does not exist"))
|
|
}
|
|
delete(q.queryShards, channel)
|
|
return nil
|
|
}
|
|
|
|
func (q *queryShardService) hasQueryShard(channel Channel) bool {
|
|
q.queryShardsMu.Lock()
|
|
defer q.queryShardsMu.Unlock()
|
|
_, found := q.queryShards[channel]
|
|
return found
|
|
}
|
|
|
|
func (q *queryShardService) getQueryShard(channel Channel) (*queryShard, error) {
|
|
q.queryShardsMu.Lock()
|
|
defer q.queryShardsMu.Unlock()
|
|
if _, ok := q.queryShards[channel]; !ok {
|
|
return nil, errors.New(fmt.Sprintln("query shard(channel) ", channel, " does not exist"))
|
|
}
|
|
return q.queryShards[channel], nil
|
|
}
|