mirror of
https://gitee.com/milvus-io/milvus.git
synced 2024-12-11 09:46:26 +08:00
136 lines
3.2 KiB
Go
136 lines
3.2 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 rootcoord
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import (
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"fmt"
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"sync"
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"github.com/milvus-io/milvus/internal/log"
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"github.com/milvus-io/milvus/internal/msgstream"
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"go.uber.org/zap"
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)
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type dmlChannels struct {
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core *Core
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lock sync.RWMutex
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dml map[string]msgstream.MsgStream
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}
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func newDMLChannels(c *Core) *dmlChannels {
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return &dmlChannels{
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core: c,
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lock: sync.RWMutex{},
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dml: make(map[string]msgstream.MsgStream),
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}
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}
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// GetNumChannels get current dml channel count
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func (d *dmlChannels) GetNumChannels() int {
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d.lock.RLock()
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defer d.lock.RUnlock()
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return len(d.dml)
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}
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// ListChannels lists all dml channel names
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func (d *dmlChannels) ListChannels() []string {
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d.lock.RLock()
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defer d.lock.RUnlock()
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ret := make([]string, 0, len(d.dml))
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for n := range d.dml {
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ret = append(ret, n)
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}
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return ret
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}
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// Produce produces msg pack into specified channel
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func (d *dmlChannels) Produce(name string, pack *msgstream.MsgPack) error {
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d.lock.Lock()
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defer d.lock.Unlock()
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ds, ok := d.dml[name]
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if !ok {
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return fmt.Errorf("channel %s not exist", name)
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}
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if err := ds.Produce(pack); err != nil {
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return err
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}
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return nil
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}
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// Broadcast broadcasts msg pack into specified channel
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func (d *dmlChannels) Broadcast(name string, pack *msgstream.MsgPack) error {
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d.lock.Lock()
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defer d.lock.Unlock()
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ds, ok := d.dml[name]
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if !ok {
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return fmt.Errorf("channel %s not exist", name)
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}
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if err := ds.Broadcast(pack); err != nil {
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return err
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}
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return nil
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}
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// BroadcastAll invoke broadcast with provided msg pack in all channels specified
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func (d *dmlChannels) BroadcastAll(channels []string, pack *msgstream.MsgPack) error {
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d.lock.Lock()
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defer d.lock.Unlock()
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for _, ch := range channels {
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ds, ok := d.dml[ch]
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if !ok {
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return fmt.Errorf("channel %s not exist", ch)
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}
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if err := ds.Broadcast(pack); err != nil {
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return err
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}
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}
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return nil
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}
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// AddProducerChannels add named channels as producer
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func (d *dmlChannels) AddProducerChannels(names ...string) {
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d.lock.Lock()
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defer d.lock.Unlock()
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for _, name := range names {
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log.Debug("add dml channel", zap.String("channel name", name))
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_, ok := d.dml[name]
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if !ok {
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ms, err := d.core.msFactory.NewMsgStream(d.core.ctx)
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if err != nil {
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log.Debug("add msgstream failed", zap.String("name", name), zap.Error(err))
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continue
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}
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ms.AsProducer([]string{name})
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d.dml[name] = ms
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}
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}
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}
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// RemoveProducerChannels removes specified channels
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func (d *dmlChannels) RemoveProducerChannels(names ...string) {
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d.lock.Lock()
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defer d.lock.Unlock()
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for _, name := range names {
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if ds, ok := d.dml[name]; ok {
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ds.Close()
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delete(d.dml, name)
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}
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}
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}
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