mirror of
https://github.com/cubefs/cubefs.git
synced 2026-08-02 10:06:14 +00:00
90 lines
1.9 KiB
Go
90 lines
1.9 KiB
Go
// Copyright 2023 The CubeFS Authors.
|
|
//
|
|
// Licensed 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 flashnode
|
|
|
|
import (
|
|
"hash/crc32"
|
|
"log"
|
|
"net"
|
|
"sync/atomic"
|
|
"time"
|
|
|
|
"github.com/cubefs/cubefs/proto"
|
|
)
|
|
|
|
var _randErr uint32
|
|
|
|
func initExtentListener() {
|
|
listener, err := net.Listen("tcp4", "127.0.0.1:0")
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
extentListener = listener
|
|
go func() {
|
|
for {
|
|
conn, err := listener.Accept()
|
|
select {
|
|
case <-closeCh:
|
|
return
|
|
default:
|
|
}
|
|
if err == nil {
|
|
go serveExtentConn(conn)
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
|
|
func serveExtentConn(conn net.Conn) {
|
|
defer conn.Close()
|
|
c := conn.(*net.TCPConn)
|
|
c.SetKeepAlive(true)
|
|
c.SetNoDelay(true)
|
|
for {
|
|
c.SetReadDeadline(time.Now().Add(time.Second * _tcpServerTimeoutSec))
|
|
select {
|
|
case <-closeCh:
|
|
return
|
|
default:
|
|
}
|
|
|
|
p := proto.NewPacketReqID()
|
|
if err := p.ReadFromConn(c, proto.NoReadDeadlineTime); err != nil {
|
|
return
|
|
}
|
|
if p.Opcode != proto.OpStreamRead && p.Opcode != proto.OpStreamFollowerRead {
|
|
log.Println("error code", p.GetOpMsg())
|
|
return
|
|
}
|
|
|
|
r := newReplyPacket(p.ReqID, p.PartitionID, p.ExtentID)
|
|
r.ResultCode = proto.OpOk
|
|
r.Size = p.Size
|
|
r.Data = make([]byte, r.Size)
|
|
switch atomic.AddUint32(&_randErr, 1) {
|
|
case 1:
|
|
case 2:
|
|
r.ResultCode = proto.OpErr
|
|
case 3:
|
|
r.PartitionID = 2333
|
|
default:
|
|
r.CRC = crc32.ChecksumIEEE(r.Data[:r.Size])
|
|
}
|
|
if err := r.WriteToConn(conn); err != nil {
|
|
return
|
|
}
|
|
}
|
|
}
|
