1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
// Copyright 2009 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"
"runtime"
"testing"
"time"
)
func testTimeout(t *testing.T, network, addr string, readFrom bool) {
fd, err := Dial(network, addr)
if err != nil {
t.Errorf("dial %s %s failed: %v", network, addr, err)
return
}
defer fd.Close()
what := "Read"
if readFrom {
what = "ReadFrom"
}
errc := make(chan error, 1)
go func() {
t0 := time.Now()
fd.SetReadDeadline(time.Now().Add(100 * time.Millisecond))
var b [100]byte
var n int
var err1 error
if readFrom {
n, _, err1 = fd.(PacketConn).ReadFrom(b[0:])
} else {
n, err1 = fd.Read(b[0:])
}
t1 := time.Now()
if n != 0 || err1 == nil || !err1.(Error).Timeout() {
errc <- fmt.Errorf("fd.%s on %s %s did not return 0, timeout: %v, %v", what, network, addr, n, err1)
return
}
if dt := t1.Sub(t0); dt < 50*time.Millisecond || !testing.Short() && dt > 250*time.Millisecond {
errc <- fmt.Errorf("fd.%s on %s %s took %s, expected 0.1s", what, network, addr, dt)
return
}
errc <- nil
}()
select {
case err := <-errc:
if err != nil {
t.Error(err)
}
case <-time.After(1 * time.Second):
t.Errorf("%s on %s %s took over 1 second, expected 0.1s", what, network, addr)
}
}
func TestTimeoutUDP(t *testing.T) {
if runtime.GOOS == "plan9" {
return
}
testTimeout(t, "udp", "127.0.0.1:53", false)
testTimeout(t, "udp", "127.0.0.1:53", true)
}
func TestTimeoutTCP(t *testing.T) {
if runtime.GOOS == "plan9" {
return
}
// set up a listener that won't talk back
listening := make(chan string)
done := make(chan int)
go runServe(t, "tcp", "127.0.0.1:0", listening, done)
addr := <-listening
testTimeout(t, "tcp", addr, false)
<-done
}
func TestDeadlineReset(t *testing.T) {
if runtime.GOOS == "plan9" {
return
}
ln, err := Listen("tcp", "127.0.0.1:0")
if err != nil {
t.Fatal(err)
}
defer ln.Close()
tl := ln.(*TCPListener)
tl.SetDeadline(time.Now().Add(1 * time.Minute))
tl.SetDeadline(time.Time{}) // reset it
errc := make(chan error, 1)
go func() {
_, err := ln.Accept()
errc <- err
}()
select {
case <-time.After(50 * time.Millisecond):
// Pass.
case err := <-errc:
// Accept should never return; we never
// connected to it.
t.Errorf("unexpected return from Accept; err=%v", err)
}
}
|
