c2047754c3
Compiler changes:
* Change map assignment to use mapassign and assign value directly.
* Change string iteration to use decoderune, faster for ASCII strings.
* Change makeslice to take int, and use makeslice64 for larger values.
* Add new noverflow field to hmap struct used for maps.
Unresolved problems, to be fixed later:
* Commented out test in go/types/sizes_test.go that doesn't compile.
* Commented out reflect.TestStructOf test for padding after zero-sized field.
Reviewed-on: https://go-review.googlesource.com/35231
gotools/:
Updates for Go 1.8rc1.
* Makefile.am (go_cmd_go_files): Add bug.go.
(s-zdefaultcc): Write defaultPkgConfig.
* Makefile.in: Rebuild.
From-SVN: r244456
70 lines
1.3 KiB
Go
70 lines
1.3 KiB
Go
// Copyright 2016 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 net
|
|
|
|
import (
|
|
"internal/testenv"
|
|
"runtime"
|
|
"testing"
|
|
)
|
|
|
|
func TestListenMulticastUDP(t *testing.T) {
|
|
testenv.MustHaveExternalNetwork(t)
|
|
|
|
ifcs, err := Interfaces()
|
|
if err != nil {
|
|
t.Skip(err.Error())
|
|
}
|
|
if len(ifcs) == 0 {
|
|
t.Skip("no network interfaces found")
|
|
}
|
|
|
|
var mifc *Interface
|
|
for _, ifc := range ifcs {
|
|
if ifc.Flags&FlagUp|FlagMulticast != FlagUp|FlagMulticast {
|
|
continue
|
|
}
|
|
mifc = &ifc
|
|
break
|
|
}
|
|
|
|
if mifc == nil {
|
|
t.Skipf("no multicast interfaces found")
|
|
}
|
|
|
|
c1, err := ListenMulticastUDP("udp4", mifc, &UDPAddr{IP: ParseIP("224.0.0.254")})
|
|
if err != nil {
|
|
t.Fatalf("multicast not working on %s", runtime.GOOS)
|
|
}
|
|
c1addr := c1.LocalAddr().(*UDPAddr)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer c1.Close()
|
|
|
|
c2, err := ListenUDP("udp4", &UDPAddr{IP: IPv4zero, Port: 0})
|
|
c2addr := c2.LocalAddr().(*UDPAddr)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer c2.Close()
|
|
|
|
n, err := c2.WriteToUDP([]byte("data"), c1addr)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if n != 4 {
|
|
t.Fatalf("got %d; want 4", n)
|
|
}
|
|
|
|
n, err = c1.WriteToUDP([]byte("data"), c2addr)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if n != 4 {
|
|
t.Fatalf("got %d; want 4", n)
|
|
}
|
|
}
|