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
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
// 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.
// +build linux
package unix_test
import (
"io/ioutil"
"os"
"testing"
"time"
"golang.org/x/sys/unix"
)
func TestPoll(t *testing.T) {
f, cleanup := mktmpfifo(t)
defer cleanup()
const timeout = 100
ok := make(chan bool, 1)
go func() {
select {
case <-time.After(10 * timeout * time.Millisecond):
t.Errorf("Poll: failed to timeout after %d milliseconds", 10*timeout)
case <-ok:
}
}()
fds := []unix.PollFd{{Fd: int32(f.Fd()), Events: unix.POLLIN}}
n, err := unix.Poll(fds, timeout)
ok <- true
if err != nil {
t.Errorf("Poll: unexpected error: %v", err)
return
}
if n != 0 {
t.Errorf("Poll: wrong number of events: got %v, expected %v", n, 0)
return
}
}
func TestPpoll(t *testing.T) {
f, cleanup := mktmpfifo(t)
defer cleanup()
const timeout = 100 * time.Millisecond
ok := make(chan bool, 1)
go func() {
select {
case <-time.After(10 * timeout):
t.Errorf("Ppoll: failed to timeout after %d", 10*timeout)
case <-ok:
}
}()
fds := []unix.PollFd{{Fd: int32(f.Fd()), Events: unix.POLLIN}}
timeoutTs := unix.NsecToTimespec(int64(timeout))
n, err := unix.Ppoll(fds, &timeoutTs, nil)
ok <- true
if err != nil {
t.Errorf("Ppoll: unexpected error: %v", err)
return
}
if n != 0 {
t.Errorf("Ppoll: wrong number of events: got %v, expected %v", n, 0)
return
}
}
// mktmpfifo creates a temporary FIFO and provides a cleanup function.
func mktmpfifo(t *testing.T) (*os.File, func()) {
err := unix.Mkfifo("fifo", 0666)
if err != nil {
t.Fatalf("mktmpfifo: failed to create FIFO: %v", err)
}
f, err := os.OpenFile("fifo", os.O_RDWR, 0666)
if err != nil {
os.Remove("fifo")
t.Fatalf("mktmpfifo: failed to open FIFO: %v", err)
}
return f, func() {
f.Close()
os.Remove("fifo")
}
}
func TestTime(t *testing.T) {
var ut unix.Time_t
ut2, err := unix.Time(&ut)
if err != nil {
t.Fatalf("Time: %v", err)
}
if ut != ut2 {
t.Errorf("Time: return value %v should be equal to argument %v", ut2, ut)
}
var now time.Time
for i := 0; i < 10; i++ {
ut, err = unix.Time(nil)
if err != nil {
t.Fatalf("Time: %v", err)
}
now = time.Now()
if int64(ut) == now.Unix() {
return
}
}
t.Errorf("Time: return value %v should be nearly equal to time.Now().Unix() %v", ut, now.Unix())
}
func TestUtime(t *testing.T) {
defer chtmpdir(t)()
touch(t, "file1")
buf := &unix.Utimbuf{
Modtime: 12345,
}
err := unix.Utime("file1", buf)
if err != nil {
t.Fatalf("Utime: %v", err)
}
fi, err := os.Stat("file1")
if err != nil {
t.Fatal(err)
}
if fi.ModTime().Unix() != 12345 {
t.Errorf("Utime: failed to change modtime: expected %v, got %v", 12345, fi.ModTime().Unix())
}
}
func TestGetrlimit(t *testing.T) {
var rlim unix.Rlimit
err := unix.Getrlimit(unix.RLIMIT_AS, &rlim)
if err != nil {
t.Fatalf("Getrlimit: %v", err)
}
}
// utilities taken from os/os_test.go
func touch(t *testing.T, name string) {
f, err := os.Create(name)
if err != nil {
t.Fatal(err)
}
if err := f.Close(); err != nil {
t.Fatal(err)
}
}
// chtmpdir changes the working directory to a new temporary directory and
// provides a cleanup function. Used when PWD is read-only.
func chtmpdir(t *testing.T) func() {
oldwd, err := os.Getwd()
if err != nil {
t.Fatalf("chtmpdir: %v", err)
}
d, err := ioutil.TempDir("", "test")
if err != nil {
t.Fatalf("chtmpdir: %v", err)
}
if err := os.Chdir(d); err != nil {
t.Fatalf("chtmpdir: %v", err)
}
return func() {
if err := os.Chdir(oldwd); err != nil {
t.Fatalf("chtmpdir: %v", err)
}
os.RemoveAll(d)
}
}
|
