149 lines
3.3 KiB
Go
149 lines
3.3 KiB
Go
// Copyright 2013 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package ipv6_test
|
|
|
|
import (
|
|
"bytes"
|
|
"net"
|
|
"runtime"
|
|
"strings"
|
|
"sync"
|
|
"testing"
|
|
|
|
"golang.org/x/net/internal/iana"
|
|
"golang.org/x/net/internal/nettest"
|
|
"golang.org/x/net/ipv6"
|
|
)
|
|
|
|
func BenchmarkReadWriteUnicast(b *testing.B) {
|
|
c, err := nettest.NewLocalPacketListener("udp6")
|
|
if err != nil {
|
|
b.Skipf("not supported on %s/%s: %v", runtime.GOOS, runtime.GOARCH, err)
|
|
}
|
|
defer c.Close()
|
|
|
|
dst := c.LocalAddr()
|
|
wb, rb := []byte("HELLO-R-U-THERE"), make([]byte, 128)
|
|
|
|
b.Run("NetUDP", func(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
if _, err := c.WriteTo(wb, dst); err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
if _, _, err := c.ReadFrom(rb); err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
}
|
|
})
|
|
b.Run("IPv6UDP", func(b *testing.B) {
|
|
p := ipv6.NewPacketConn(c)
|
|
cf := ipv6.FlagTrafficClass | ipv6.FlagHopLimit | ipv6.FlagSrc | ipv6.FlagDst | ipv6.FlagInterface | ipv6.FlagPathMTU
|
|
if err := p.SetControlMessage(cf, true); err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
cm := ipv6.ControlMessage{
|
|
TrafficClass: iana.DiffServAF11 | iana.CongestionExperienced,
|
|
HopLimit: 1,
|
|
}
|
|
ifi := nettest.RoutedInterface("ip6", net.FlagUp|net.FlagLoopback)
|
|
if ifi != nil {
|
|
cm.IfIndex = ifi.Index
|
|
}
|
|
|
|
for i := 0; i < b.N; i++ {
|
|
if _, err := p.WriteTo(wb, &cm, dst); err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
if _, _, _, err := p.ReadFrom(rb); err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
}
|
|
})
|
|
}
|
|
|
|
func TestPacketConnConcurrentReadWriteUnicastUDP(t *testing.T) {
|
|
switch runtime.GOOS {
|
|
case "nacl", "plan9", "windows":
|
|
t.Skipf("not supported on %s", runtime.GOOS)
|
|
}
|
|
if !supportsIPv6 {
|
|
t.Skip("ipv6 is not supported")
|
|
}
|
|
|
|
c, err := nettest.NewLocalPacketListener("udp6")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer c.Close()
|
|
p := ipv6.NewPacketConn(c)
|
|
defer p.Close()
|
|
|
|
dst := c.LocalAddr()
|
|
ifi := nettest.RoutedInterface("ip6", net.FlagUp|net.FlagLoopback)
|
|
cf := ipv6.FlagTrafficClass | ipv6.FlagHopLimit | ipv6.FlagSrc | ipv6.FlagDst | ipv6.FlagInterface | ipv6.FlagPathMTU
|
|
wb := []byte("HELLO-R-U-THERE")
|
|
|
|
if err := p.SetControlMessage(cf, true); err != nil { // probe before test
|
|
if nettest.ProtocolNotSupported(err) {
|
|
t.Skipf("not supported on %s", runtime.GOOS)
|
|
}
|
|
t.Fatal(err)
|
|
}
|
|
|
|
var wg sync.WaitGroup
|
|
reader := func() {
|
|
defer wg.Done()
|
|
rb := make([]byte, 128)
|
|
if n, cm, _, err := p.ReadFrom(rb); err != nil {
|
|
t.Error(err)
|
|
return
|
|
} else if !bytes.Equal(rb[:n], wb) {
|
|
t.Errorf("got %v; want %v", rb[:n], wb)
|
|
return
|
|
} else {
|
|
s := cm.String()
|
|
if strings.Contains(s, ",") {
|
|
t.Errorf("should be space-separated values: %s", s)
|
|
}
|
|
}
|
|
}
|
|
writer := func(toggle bool) {
|
|
defer wg.Done()
|
|
cm := ipv6.ControlMessage{
|
|
TrafficClass: iana.DiffServAF11 | iana.CongestionExperienced,
|
|
Src: net.IPv6loopback,
|
|
}
|
|
if ifi != nil {
|
|
cm.IfIndex = ifi.Index
|
|
}
|
|
if err := p.SetControlMessage(cf, toggle); err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
if n, err := p.WriteTo(wb, &cm, dst); err != nil {
|
|
t.Error(err)
|
|
return
|
|
} else if n != len(wb) {
|
|
t.Errorf("got %d; want %d", n, len(wb))
|
|
return
|
|
}
|
|
}
|
|
|
|
const N = 10
|
|
wg.Add(N)
|
|
for i := 0; i < N; i++ {
|
|
go reader()
|
|
}
|
|
wg.Add(2 * N)
|
|
for i := 0; i < 2*N; i++ {
|
|
go writer(i%2 != 0)
|
|
}
|
|
wg.Add(N)
|
|
for i := 0; i < N; i++ {
|
|
go reader()
|
|
}
|
|
wg.Wait()
|
|
}
|