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https://github.com/cubefs/cubefs.git
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d2c12c4813
close:#1000149211
Signed-off-by: chihe <chihe@oppo.com>
(cherry picked from commit 22f7c23bee)
90 lines
1.9 KiB
Go
90 lines
1.9 KiB
Go
// Copyright 2023 The CubeFS Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// 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
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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// implied. See the License for the specific language governing
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// permissions and limitations under the License.
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package flashnode
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import (
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"hash/crc32"
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"log"
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"net"
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"sync/atomic"
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"time"
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"github.com/cubefs/cubefs/proto"
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)
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var _randErr uint32
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func initExtentListener() {
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listener, err := net.Listen("tcp4", "127.0.0.1:0")
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if err != nil {
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panic(err)
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}
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extentListener = listener
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go func() {
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for {
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conn, err := listener.Accept()
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select {
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case <-closeCh:
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return
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default:
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}
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if err == nil {
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go serveExtentConn(conn)
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}
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}
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}()
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}
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func serveExtentConn(conn net.Conn) {
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defer conn.Close()
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c := conn.(*net.TCPConn)
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c.SetKeepAlive(true)
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c.SetNoDelay(true)
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for {
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c.SetReadDeadline(time.Now().Add(time.Second * _tcpServerTimeoutSec))
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select {
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case <-closeCh:
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return
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default:
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}
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p := proto.NewPacketReqID()
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if err := p.ReadFromConn(c, proto.NoReadDeadlineTime); err != nil {
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return
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}
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if p.Opcode != proto.OpStreamRead && p.Opcode != proto.OpStreamFollowerRead {
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log.Println("error code", p.GetOpMsg())
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return
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}
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r := newReplyPacket(p.ReqID, p.PartitionID, p.ExtentID)
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r.ResultCode = proto.OpOk
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r.Size = p.Size
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r.Data = make([]byte, r.Size)
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switch atomic.AddUint32(&_randErr, 1) {
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case 1:
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case 2:
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r.ResultCode = proto.OpErr
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case 3:
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r.PartitionID = 2333
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default:
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r.CRC = crc32.ChecksumIEEE(r.Data[:r.Size])
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}
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if err := r.WriteToConn(conn); err != nil {
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return
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}
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}
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}
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