mirror of
https://gitee.com/milvus-io/milvus.git
synced 2024-12-05 13:28:49 +08:00
c9d0c157ec
Signed-off-by: jaime <yun.zhang@zilliz.com>
73 lines
1.7 KiB
Go
73 lines
1.7 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 msgdispatcher
|
|
|
|
import (
|
|
"fmt"
|
|
"sync"
|
|
"time"
|
|
)
|
|
|
|
// TODO: dyh, move to config
|
|
var (
|
|
MaxTolerantLag = 3 * time.Second
|
|
DefaultTargetChanSize = 1024
|
|
)
|
|
|
|
type target struct {
|
|
vchannel string
|
|
ch chan *MsgPack
|
|
pos *Pos
|
|
|
|
closeMu sync.Mutex
|
|
closeOnce sync.Once
|
|
closed bool
|
|
}
|
|
|
|
func newTarget(vchannel string, pos *Pos) *target {
|
|
t := &target{
|
|
vchannel: vchannel,
|
|
ch: make(chan *MsgPack, DefaultTargetChanSize),
|
|
pos: pos,
|
|
}
|
|
t.closed = false
|
|
return t
|
|
}
|
|
|
|
func (t *target) close() {
|
|
t.closeMu.Lock()
|
|
defer t.closeMu.Unlock()
|
|
t.closeOnce.Do(func() {
|
|
t.closed = true
|
|
close(t.ch)
|
|
})
|
|
}
|
|
|
|
func (t *target) send(pack *MsgPack) error {
|
|
t.closeMu.Lock()
|
|
defer t.closeMu.Unlock()
|
|
if t.closed {
|
|
return nil
|
|
}
|
|
select {
|
|
case <-time.After(MaxTolerantLag):
|
|
return fmt.Errorf("send target timeout, vchannel=%s, timeout=%s", t.vchannel, MaxTolerantLag)
|
|
case t.ch <- pack:
|
|
return nil
|
|
}
|
|
}
|