1a2f01efa6
Update the Go library to the 1.10beta1 release.
Requires a few changes to the compiler for modifications to the map
runtime code, and to handle some nowritebarrier cases in the runtime.
Reviewed-on: https://go-review.googlesource.com/86455
gotools/:
* Makefile.am (go_cmd_vet_files): New variable.
(go_cmd_buildid_files, go_cmd_test2json_files): New variables.
(s-zdefaultcc): Change from constants to functions.
(noinst_PROGRAMS): Add vet, buildid, and test2json.
(cgo$(EXEEXT)): Link against $(LIBGOTOOL).
(vet$(EXEEXT)): New target.
(buildid$(EXEEXT)): New target.
(test2json$(EXEEXT)): New target.
(install-exec-local): Install all $(noinst_PROGRAMS).
(uninstall-local): Uninstasll all $(noinst_PROGRAMS).
(check-go-tool): Depend on $(noinst_PROGRAMS). Copy down
objabi.go.
(check-runtime): Depend on $(noinst_PROGRAMS).
(check-cgo-test, check-carchive-test): Likewise.
(check-vet): New target.
(check): Depend on check-vet. Look at cmd_vet-testlog.
(.PHONY): Add check-vet.
* Makefile.in: Rebuild.
From-SVN: r256365
802 lines
17 KiB
Go
802 lines
17 KiB
Go
// Copyright 2012 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 (
|
|
"fmt"
|
|
"internal/testenv"
|
|
"io"
|
|
"os"
|
|
"reflect"
|
|
"runtime"
|
|
"sync"
|
|
"testing"
|
|
"time"
|
|
)
|
|
|
|
func BenchmarkTCP4OneShot(b *testing.B) {
|
|
benchmarkTCP(b, false, false, "127.0.0.1:0")
|
|
}
|
|
|
|
func BenchmarkTCP4OneShotTimeout(b *testing.B) {
|
|
benchmarkTCP(b, false, true, "127.0.0.1:0")
|
|
}
|
|
|
|
func BenchmarkTCP4Persistent(b *testing.B) {
|
|
benchmarkTCP(b, true, false, "127.0.0.1:0")
|
|
}
|
|
|
|
func BenchmarkTCP4PersistentTimeout(b *testing.B) {
|
|
benchmarkTCP(b, true, true, "127.0.0.1:0")
|
|
}
|
|
|
|
func BenchmarkTCP6OneShot(b *testing.B) {
|
|
if !supportsIPv6() {
|
|
b.Skip("ipv6 is not supported")
|
|
}
|
|
benchmarkTCP(b, false, false, "[::1]:0")
|
|
}
|
|
|
|
func BenchmarkTCP6OneShotTimeout(b *testing.B) {
|
|
if !supportsIPv6() {
|
|
b.Skip("ipv6 is not supported")
|
|
}
|
|
benchmarkTCP(b, false, true, "[::1]:0")
|
|
}
|
|
|
|
func BenchmarkTCP6Persistent(b *testing.B) {
|
|
if !supportsIPv6() {
|
|
b.Skip("ipv6 is not supported")
|
|
}
|
|
benchmarkTCP(b, true, false, "[::1]:0")
|
|
}
|
|
|
|
func BenchmarkTCP6PersistentTimeout(b *testing.B) {
|
|
if !supportsIPv6() {
|
|
b.Skip("ipv6 is not supported")
|
|
}
|
|
benchmarkTCP(b, true, true, "[::1]:0")
|
|
}
|
|
|
|
func benchmarkTCP(b *testing.B, persistent, timeout bool, laddr string) {
|
|
testHookUninstaller.Do(uninstallTestHooks)
|
|
|
|
const msgLen = 512
|
|
conns := b.N
|
|
numConcurrent := runtime.GOMAXPROCS(-1) * 2
|
|
msgs := 1
|
|
if persistent {
|
|
conns = numConcurrent
|
|
msgs = b.N / conns
|
|
if msgs == 0 {
|
|
msgs = 1
|
|
}
|
|
if conns > b.N {
|
|
conns = b.N
|
|
}
|
|
}
|
|
sendMsg := func(c Conn, buf []byte) bool {
|
|
n, err := c.Write(buf)
|
|
if n != len(buf) || err != nil {
|
|
b.Log(err)
|
|
return false
|
|
}
|
|
return true
|
|
}
|
|
recvMsg := func(c Conn, buf []byte) bool {
|
|
for read := 0; read != len(buf); {
|
|
n, err := c.Read(buf)
|
|
read += n
|
|
if err != nil {
|
|
b.Log(err)
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
ln, err := Listen("tcp", laddr)
|
|
if err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
defer ln.Close()
|
|
serverSem := make(chan bool, numConcurrent)
|
|
// Acceptor.
|
|
go func() {
|
|
for {
|
|
c, err := ln.Accept()
|
|
if err != nil {
|
|
break
|
|
}
|
|
serverSem <- true
|
|
// Server connection.
|
|
go func(c Conn) {
|
|
defer func() {
|
|
c.Close()
|
|
<-serverSem
|
|
}()
|
|
if timeout {
|
|
c.SetDeadline(time.Now().Add(time.Hour)) // Not intended to fire.
|
|
}
|
|
var buf [msgLen]byte
|
|
for m := 0; m < msgs; m++ {
|
|
if !recvMsg(c, buf[:]) || !sendMsg(c, buf[:]) {
|
|
break
|
|
}
|
|
}
|
|
}(c)
|
|
}
|
|
}()
|
|
clientSem := make(chan bool, numConcurrent)
|
|
for i := 0; i < conns; i++ {
|
|
clientSem <- true
|
|
// Client connection.
|
|
go func() {
|
|
defer func() {
|
|
<-clientSem
|
|
}()
|
|
c, err := Dial("tcp", ln.Addr().String())
|
|
if err != nil {
|
|
b.Log(err)
|
|
return
|
|
}
|
|
defer c.Close()
|
|
if timeout {
|
|
c.SetDeadline(time.Now().Add(time.Hour)) // Not intended to fire.
|
|
}
|
|
var buf [msgLen]byte
|
|
for m := 0; m < msgs; m++ {
|
|
if !sendMsg(c, buf[:]) || !recvMsg(c, buf[:]) {
|
|
break
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
for i := 0; i < numConcurrent; i++ {
|
|
clientSem <- true
|
|
serverSem <- true
|
|
}
|
|
}
|
|
|
|
func BenchmarkTCP4ConcurrentReadWrite(b *testing.B) {
|
|
benchmarkTCPConcurrentReadWrite(b, "127.0.0.1:0")
|
|
}
|
|
|
|
func BenchmarkTCP6ConcurrentReadWrite(b *testing.B) {
|
|
if !supportsIPv6() {
|
|
b.Skip("ipv6 is not supported")
|
|
}
|
|
benchmarkTCPConcurrentReadWrite(b, "[::1]:0")
|
|
}
|
|
|
|
func benchmarkTCPConcurrentReadWrite(b *testing.B, laddr string) {
|
|
testHookUninstaller.Do(uninstallTestHooks)
|
|
|
|
// The benchmark creates GOMAXPROCS client/server pairs.
|
|
// Each pair creates 4 goroutines: client reader/writer and server reader/writer.
|
|
// The benchmark stresses concurrent reading and writing to the same connection.
|
|
// Such pattern is used in net/http and net/rpc.
|
|
|
|
b.StopTimer()
|
|
|
|
P := runtime.GOMAXPROCS(0)
|
|
N := b.N / P
|
|
W := 1000
|
|
|
|
// Setup P client/server connections.
|
|
clients := make([]Conn, P)
|
|
servers := make([]Conn, P)
|
|
ln, err := Listen("tcp", laddr)
|
|
if err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
defer ln.Close()
|
|
done := make(chan bool)
|
|
go func() {
|
|
for p := 0; p < P; p++ {
|
|
s, err := ln.Accept()
|
|
if err != nil {
|
|
b.Error(err)
|
|
return
|
|
}
|
|
servers[p] = s
|
|
}
|
|
done <- true
|
|
}()
|
|
for p := 0; p < P; p++ {
|
|
c, err := Dial("tcp", ln.Addr().String())
|
|
if err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
clients[p] = c
|
|
}
|
|
<-done
|
|
|
|
b.StartTimer()
|
|
|
|
var wg sync.WaitGroup
|
|
wg.Add(4 * P)
|
|
for p := 0; p < P; p++ {
|
|
// Client writer.
|
|
go func(c Conn) {
|
|
defer wg.Done()
|
|
var buf [1]byte
|
|
for i := 0; i < N; i++ {
|
|
v := byte(i)
|
|
for w := 0; w < W; w++ {
|
|
v *= v
|
|
}
|
|
buf[0] = v
|
|
_, err := c.Write(buf[:])
|
|
if err != nil {
|
|
b.Error(err)
|
|
return
|
|
}
|
|
}
|
|
}(clients[p])
|
|
|
|
// Pipe between server reader and server writer.
|
|
pipe := make(chan byte, 128)
|
|
|
|
// Server reader.
|
|
go func(s Conn) {
|
|
defer wg.Done()
|
|
var buf [1]byte
|
|
for i := 0; i < N; i++ {
|
|
_, err := s.Read(buf[:])
|
|
if err != nil {
|
|
b.Error(err)
|
|
return
|
|
}
|
|
pipe <- buf[0]
|
|
}
|
|
}(servers[p])
|
|
|
|
// Server writer.
|
|
go func(s Conn) {
|
|
defer wg.Done()
|
|
var buf [1]byte
|
|
for i := 0; i < N; i++ {
|
|
v := <-pipe
|
|
for w := 0; w < W; w++ {
|
|
v *= v
|
|
}
|
|
buf[0] = v
|
|
_, err := s.Write(buf[:])
|
|
if err != nil {
|
|
b.Error(err)
|
|
return
|
|
}
|
|
}
|
|
s.Close()
|
|
}(servers[p])
|
|
|
|
// Client reader.
|
|
go func(c Conn) {
|
|
defer wg.Done()
|
|
var buf [1]byte
|
|
for i := 0; i < N; i++ {
|
|
_, err := c.Read(buf[:])
|
|
if err != nil {
|
|
b.Error(err)
|
|
return
|
|
}
|
|
}
|
|
c.Close()
|
|
}(clients[p])
|
|
}
|
|
wg.Wait()
|
|
}
|
|
|
|
type resolveTCPAddrTest struct {
|
|
network string
|
|
litAddrOrName string
|
|
addr *TCPAddr
|
|
err error
|
|
}
|
|
|
|
var resolveTCPAddrTests = []resolveTCPAddrTest{
|
|
{"tcp", "127.0.0.1:0", &TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 0}, nil},
|
|
{"tcp4", "127.0.0.1:65535", &TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 65535}, nil},
|
|
|
|
{"tcp", "[::1]:0", &TCPAddr{IP: ParseIP("::1"), Port: 0}, nil},
|
|
{"tcp6", "[::1]:65535", &TCPAddr{IP: ParseIP("::1"), Port: 65535}, nil},
|
|
|
|
{"tcp", "[::1%en0]:1", &TCPAddr{IP: ParseIP("::1"), Port: 1, Zone: "en0"}, nil},
|
|
{"tcp6", "[::1%911]:2", &TCPAddr{IP: ParseIP("::1"), Port: 2, Zone: "911"}, nil},
|
|
|
|
{"", "127.0.0.1:0", &TCPAddr{IP: IPv4(127, 0, 0, 1), Port: 0}, nil}, // Go 1.0 behavior
|
|
{"", "[::1]:0", &TCPAddr{IP: ParseIP("::1"), Port: 0}, nil}, // Go 1.0 behavior
|
|
|
|
{"tcp", ":12345", &TCPAddr{Port: 12345}, nil},
|
|
|
|
{"http", "127.0.0.1:0", nil, UnknownNetworkError("http")},
|
|
|
|
{"tcp", "127.0.0.1:http", &TCPAddr{IP: ParseIP("127.0.0.1"), Port: 80}, nil},
|
|
{"tcp", "[::ffff:127.0.0.1]:http", &TCPAddr{IP: ParseIP("::ffff:127.0.0.1"), Port: 80}, nil},
|
|
{"tcp", "[2001:db8::1]:http", &TCPAddr{IP: ParseIP("2001:db8::1"), Port: 80}, nil},
|
|
{"tcp4", "127.0.0.1:http", &TCPAddr{IP: ParseIP("127.0.0.1"), Port: 80}, nil},
|
|
{"tcp4", "[::ffff:127.0.0.1]:http", &TCPAddr{IP: ParseIP("127.0.0.1"), Port: 80}, nil},
|
|
{"tcp6", "[2001:db8::1]:http", &TCPAddr{IP: ParseIP("2001:db8::1"), Port: 80}, nil},
|
|
|
|
{"tcp4", "[2001:db8::1]:http", nil, &AddrError{Err: errNoSuitableAddress.Error(), Addr: "2001:db8::1"}},
|
|
{"tcp6", "127.0.0.1:http", nil, &AddrError{Err: errNoSuitableAddress.Error(), Addr: "127.0.0.1"}},
|
|
{"tcp6", "[::ffff:127.0.0.1]:http", nil, &AddrError{Err: errNoSuitableAddress.Error(), Addr: "::ffff:127.0.0.1"}},
|
|
}
|
|
|
|
func TestResolveTCPAddr(t *testing.T) {
|
|
origTestHookLookupIP := testHookLookupIP
|
|
defer func() { testHookLookupIP = origTestHookLookupIP }()
|
|
testHookLookupIP = lookupLocalhost
|
|
|
|
for _, tt := range resolveTCPAddrTests {
|
|
addr, err := ResolveTCPAddr(tt.network, tt.litAddrOrName)
|
|
if !reflect.DeepEqual(addr, tt.addr) || !reflect.DeepEqual(err, tt.err) {
|
|
t.Errorf("ResolveTCPAddr(%q, %q) = %#v, %v, want %#v, %v", tt.network, tt.litAddrOrName, addr, err, tt.addr, tt.err)
|
|
continue
|
|
}
|
|
if err == nil {
|
|
addr2, err := ResolveTCPAddr(addr.Network(), addr.String())
|
|
if !reflect.DeepEqual(addr2, tt.addr) || err != tt.err {
|
|
t.Errorf("(%q, %q): ResolveTCPAddr(%q, %q) = %#v, %v, want %#v, %v", tt.network, tt.litAddrOrName, addr.Network(), addr.String(), addr2, err, tt.addr, tt.err)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
var tcpListenerNameTests = []struct {
|
|
net string
|
|
laddr *TCPAddr
|
|
}{
|
|
{"tcp4", &TCPAddr{IP: IPv4(127, 0, 0, 1)}},
|
|
{"tcp4", &TCPAddr{}},
|
|
{"tcp4", nil},
|
|
}
|
|
|
|
func TestTCPListenerName(t *testing.T) {
|
|
testenv.MustHaveExternalNetwork(t)
|
|
|
|
for _, tt := range tcpListenerNameTests {
|
|
ln, err := ListenTCP(tt.net, tt.laddr)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer ln.Close()
|
|
la := ln.Addr()
|
|
if a, ok := la.(*TCPAddr); !ok || a.Port == 0 {
|
|
t.Fatalf("got %v; expected a proper address with non-zero port number", la)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestIPv6LinkLocalUnicastTCP(t *testing.T) {
|
|
testenv.MustHaveExternalNetwork(t)
|
|
|
|
if !supportsIPv6() {
|
|
t.Skip("IPv6 is not supported")
|
|
}
|
|
|
|
for i, tt := range ipv6LinkLocalUnicastTCPTests {
|
|
ln, err := Listen(tt.network, tt.address)
|
|
if err != nil {
|
|
// It might return "LookupHost returned no
|
|
// suitable address" error on some platforms.
|
|
t.Log(err)
|
|
continue
|
|
}
|
|
ls, err := (&streamListener{Listener: ln}).newLocalServer()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer ls.teardown()
|
|
ch := make(chan error, 1)
|
|
handler := func(ls *localServer, ln Listener) { transponder(ln, ch) }
|
|
if err := ls.buildup(handler); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if la, ok := ln.Addr().(*TCPAddr); !ok || !tt.nameLookup && la.Zone == "" {
|
|
t.Fatalf("got %v; expected a proper address with zone identifier", la)
|
|
}
|
|
|
|
c, err := Dial(tt.network, ls.Listener.Addr().String())
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer c.Close()
|
|
if la, ok := c.LocalAddr().(*TCPAddr); !ok || !tt.nameLookup && la.Zone == "" {
|
|
t.Fatalf("got %v; expected a proper address with zone identifier", la)
|
|
}
|
|
if ra, ok := c.RemoteAddr().(*TCPAddr); !ok || !tt.nameLookup && ra.Zone == "" {
|
|
t.Fatalf("got %v; expected a proper address with zone identifier", ra)
|
|
}
|
|
|
|
if _, err := c.Write([]byte("TCP OVER IPV6 LINKLOCAL TEST")); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
b := make([]byte, 32)
|
|
if _, err := c.Read(b); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
for err := range ch {
|
|
t.Errorf("#%d: %v", i, err)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestTCPConcurrentAccept(t *testing.T) {
|
|
defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(4))
|
|
ln, err := Listen("tcp", "127.0.0.1:0")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
const N = 10
|
|
var wg sync.WaitGroup
|
|
wg.Add(N)
|
|
for i := 0; i < N; i++ {
|
|
go func() {
|
|
for {
|
|
c, err := ln.Accept()
|
|
if err != nil {
|
|
break
|
|
}
|
|
c.Close()
|
|
}
|
|
wg.Done()
|
|
}()
|
|
}
|
|
attempts := 10 * N
|
|
fails := 0
|
|
d := &Dialer{Timeout: 200 * time.Millisecond}
|
|
for i := 0; i < attempts; i++ {
|
|
c, err := d.Dial("tcp", ln.Addr().String())
|
|
if err != nil {
|
|
fails++
|
|
} else {
|
|
c.Close()
|
|
}
|
|
}
|
|
ln.Close()
|
|
wg.Wait()
|
|
if fails > attempts/9 { // see issues 7400 and 7541
|
|
t.Fatalf("too many Dial failed: %v", fails)
|
|
}
|
|
if fails > 0 {
|
|
t.Logf("# of failed Dials: %v", fails)
|
|
}
|
|
}
|
|
|
|
func TestTCPReadWriteAllocs(t *testing.T) {
|
|
if runtime.Compiler == "gccgo" {
|
|
t.Skip("skipping for gccgo until escape analysis is enabled")
|
|
}
|
|
|
|
switch runtime.GOOS {
|
|
case "plan9":
|
|
// The implementation of asynchronous cancelable
|
|
// I/O on Plan 9 allocates memory.
|
|
// See net/fd_io_plan9.go.
|
|
t.Skipf("not supported on %s", runtime.GOOS)
|
|
case "nacl":
|
|
// NaCl needs to allocate pseudo file descriptor
|
|
// stuff. See syscall/fd_nacl.go.
|
|
t.Skipf("not supported on %s", runtime.GOOS)
|
|
}
|
|
|
|
ln, err := Listen("tcp", "127.0.0.1:0")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer ln.Close()
|
|
var server Conn
|
|
errc := make(chan error, 1)
|
|
go func() {
|
|
var err error
|
|
server, err = ln.Accept()
|
|
errc <- err
|
|
}()
|
|
client, err := Dial("tcp", ln.Addr().String())
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer client.Close()
|
|
if err := <-errc; err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer server.Close()
|
|
|
|
var buf [128]byte
|
|
allocs := testing.AllocsPerRun(1000, func() {
|
|
_, err := server.Write(buf[:])
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
_, err = io.ReadFull(client, buf[:])
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
})
|
|
// For gccgo changed "> 0" to "> 7".
|
|
if allocs > 7 {
|
|
t.Fatalf("got %v; want 0", allocs)
|
|
}
|
|
|
|
var bufwrt [128]byte
|
|
ch := make(chan bool)
|
|
defer close(ch)
|
|
go func() {
|
|
for <-ch {
|
|
_, err := server.Write(bufwrt[:])
|
|
errc <- err
|
|
}
|
|
}()
|
|
allocs = testing.AllocsPerRun(1000, func() {
|
|
ch <- true
|
|
if _, err = io.ReadFull(client, buf[:]); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if err := <-errc; err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
})
|
|
if allocs > 0 {
|
|
t.Fatalf("got %v; want 0", allocs)
|
|
}
|
|
}
|
|
|
|
func TestTCPStress(t *testing.T) {
|
|
const conns = 2
|
|
const msgLen = 512
|
|
msgs := int(1e4)
|
|
if testing.Short() {
|
|
msgs = 1e2
|
|
}
|
|
|
|
sendMsg := func(c Conn, buf []byte) bool {
|
|
n, err := c.Write(buf)
|
|
if n != len(buf) || err != nil {
|
|
t.Log(err)
|
|
return false
|
|
}
|
|
return true
|
|
}
|
|
recvMsg := func(c Conn, buf []byte) bool {
|
|
for read := 0; read != len(buf); {
|
|
n, err := c.Read(buf)
|
|
read += n
|
|
if err != nil {
|
|
t.Log(err)
|
|
return false
|
|
}
|
|
}
|
|
return true
|
|
}
|
|
|
|
ln, err := Listen("tcp", "127.0.0.1:0")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
done := make(chan bool)
|
|
// Acceptor.
|
|
go func() {
|
|
defer func() {
|
|
done <- true
|
|
}()
|
|
for {
|
|
c, err := ln.Accept()
|
|
if err != nil {
|
|
break
|
|
}
|
|
// Server connection.
|
|
go func(c Conn) {
|
|
defer c.Close()
|
|
var buf [msgLen]byte
|
|
for m := 0; m < msgs; m++ {
|
|
if !recvMsg(c, buf[:]) || !sendMsg(c, buf[:]) {
|
|
break
|
|
}
|
|
}
|
|
}(c)
|
|
}
|
|
}()
|
|
for i := 0; i < conns; i++ {
|
|
// Client connection.
|
|
go func() {
|
|
defer func() {
|
|
done <- true
|
|
}()
|
|
c, err := Dial("tcp", ln.Addr().String())
|
|
if err != nil {
|
|
t.Log(err)
|
|
return
|
|
}
|
|
defer c.Close()
|
|
var buf [msgLen]byte
|
|
for m := 0; m < msgs; m++ {
|
|
if !sendMsg(c, buf[:]) || !recvMsg(c, buf[:]) {
|
|
break
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
for i := 0; i < conns; i++ {
|
|
<-done
|
|
}
|
|
ln.Close()
|
|
<-done
|
|
}
|
|
|
|
func TestTCPSelfConnect(t *testing.T) {
|
|
if runtime.GOOS == "windows" {
|
|
// TODO(brainman): do not know why it hangs.
|
|
t.Skip("known-broken test on windows")
|
|
}
|
|
|
|
ln, err := newLocalListener("tcp")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
var d Dialer
|
|
c, err := d.Dial(ln.Addr().Network(), ln.Addr().String())
|
|
if err != nil {
|
|
ln.Close()
|
|
t.Fatal(err)
|
|
}
|
|
network := c.LocalAddr().Network()
|
|
laddr := *c.LocalAddr().(*TCPAddr)
|
|
c.Close()
|
|
ln.Close()
|
|
|
|
// Try to connect to that address repeatedly.
|
|
n := 100000
|
|
if testing.Short() {
|
|
n = 1000
|
|
}
|
|
switch runtime.GOOS {
|
|
case "darwin", "dragonfly", "freebsd", "netbsd", "openbsd", "plan9", "solaris", "windows":
|
|
// Non-Linux systems take a long time to figure
|
|
// out that there is nothing listening on localhost.
|
|
n = 100
|
|
}
|
|
for i := 0; i < n; i++ {
|
|
d.Timeout = time.Millisecond
|
|
c, err := d.Dial(network, laddr.String())
|
|
if err == nil {
|
|
addr := c.LocalAddr().(*TCPAddr)
|
|
if addr.Port == laddr.Port || addr.IP.Equal(laddr.IP) {
|
|
t.Errorf("Dial %v should fail", addr)
|
|
} else {
|
|
t.Logf("Dial %v succeeded - possibly racing with other listener", addr)
|
|
}
|
|
c.Close()
|
|
}
|
|
}
|
|
}
|
|
|
|
// Test that >32-bit reads work on 64-bit systems.
|
|
// On 32-bit systems this tests that maxint reads work.
|
|
func TestTCPBig(t *testing.T) {
|
|
if !*testTCPBig {
|
|
t.Skip("test disabled; use -tcpbig to enable")
|
|
}
|
|
|
|
for _, writev := range []bool{false, true} {
|
|
t.Run(fmt.Sprintf("writev=%v", writev), func(t *testing.T) {
|
|
ln, err := newLocalListener("tcp")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer ln.Close()
|
|
|
|
x := int(1 << 30)
|
|
x = x*5 + 1<<20 // just over 5 GB on 64-bit, just over 1GB on 32-bit
|
|
done := make(chan int)
|
|
go func() {
|
|
defer close(done)
|
|
c, err := ln.Accept()
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
buf := make([]byte, x)
|
|
var n int
|
|
if writev {
|
|
var n64 int64
|
|
n64, err = (&Buffers{buf}).WriteTo(c)
|
|
n = int(n64)
|
|
} else {
|
|
n, err = c.Write(buf)
|
|
}
|
|
if n != len(buf) || err != nil {
|
|
t.Errorf("Write(buf) = %d, %v, want %d, nil", n, err, x)
|
|
}
|
|
c.Close()
|
|
}()
|
|
|
|
c, err := Dial("tcp", ln.Addr().String())
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
buf := make([]byte, x)
|
|
n, err := io.ReadFull(c, buf)
|
|
if n != len(buf) || err != nil {
|
|
t.Errorf("Read(buf) = %d, %v, want %d, nil", n, err, x)
|
|
}
|
|
c.Close()
|
|
<-done
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestCopyPipeIntoTCP(t *testing.T) {
|
|
ln, err := newLocalListener("tcp")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer ln.Close()
|
|
|
|
errc := make(chan error, 1)
|
|
defer func() {
|
|
if err := <-errc; err != nil {
|
|
t.Error(err)
|
|
}
|
|
}()
|
|
go func() {
|
|
c, err := ln.Accept()
|
|
if err != nil {
|
|
errc <- err
|
|
return
|
|
}
|
|
defer c.Close()
|
|
|
|
buf := make([]byte, 100)
|
|
n, err := io.ReadFull(c, buf)
|
|
if err != io.ErrUnexpectedEOF || n != 2 {
|
|
errc <- fmt.Errorf("got err=%q n=%v; want err=%q n=2", err, n, io.ErrUnexpectedEOF)
|
|
return
|
|
}
|
|
|
|
errc <- nil
|
|
}()
|
|
|
|
c, err := Dial("tcp", ln.Addr().String())
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer c.Close()
|
|
|
|
r, w, err := os.Pipe()
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer r.Close()
|
|
|
|
errc2 := make(chan error, 1)
|
|
defer func() {
|
|
if err := <-errc2; err != nil {
|
|
t.Error(err)
|
|
}
|
|
}()
|
|
|
|
defer w.Close()
|
|
|
|
go func() {
|
|
_, err := io.Copy(c, r)
|
|
errc2 <- err
|
|
}()
|
|
|
|
// Split write into 2 packets. That makes Windows TransmitFile
|
|
// drop second packet.
|
|
packet := make([]byte, 1)
|
|
_, err = w.Write(packet)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
time.Sleep(100 * time.Millisecond)
|
|
_, err = w.Write(packet)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
}
|