/usr/share/gocode/src/github.com/hanwen/go-fuse/fuse/test/notify_linux_test.go is in golang-github-hanwen-go-fuse-dev 0.0~git20171124.0.14c3015-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | // Copyright 2016 the Go-FUSE 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 test
import (
"os"
"testing"
"time"
"github.com/hanwen/go-fuse/fuse"
"github.com/hanwen/go-fuse/fuse/nodefs"
"github.com/hanwen/go-fuse/fuse/pathfs"
"github.com/hanwen/go-fuse/internal/testutil"
)
type NotifyFs struct {
pathfs.FileSystem
size uint64
exist bool
sizeChan chan uint64
existChan chan bool
}
func newNotifyFs() *NotifyFs {
return &NotifyFs{
FileSystem: pathfs.NewDefaultFileSystem(),
sizeChan: make(chan uint64, 1),
existChan: make(chan bool, 1),
}
}
func (fs *NotifyFs) Exists() bool {
select {
case s := <-fs.existChan:
fs.exist = s
default:
}
return fs.exist
}
func (fs *NotifyFs) Size() uint64 {
select {
case s := <-fs.sizeChan:
fs.size = s
default:
}
return fs.size
}
func (fs *NotifyFs) GetAttr(name string, context *fuse.Context) (*fuse.Attr, fuse.Status) {
if name == "" {
return &fuse.Attr{Mode: fuse.S_IFDIR | 0755}, fuse.OK
}
if name == "file" || (name == "dir/file" && fs.Exists()) {
return &fuse.Attr{Mode: fuse.S_IFREG | 0644, Size: fs.Size()}, fuse.OK
}
if name == "dir" {
return &fuse.Attr{Mode: fuse.S_IFDIR | 0755}, fuse.OK
}
return nil, fuse.ENOENT
}
func (fs *NotifyFs) Open(name string, f uint32, context *fuse.Context) (nodefs.File, fuse.Status) {
return nodefs.NewDataFile([]byte{42}), fuse.OK
}
type NotifyTest struct {
fs *NotifyFs
pathfs *pathfs.PathNodeFs
connector *nodefs.FileSystemConnector
dir string
state *fuse.Server
}
func NewNotifyTest(t *testing.T) *NotifyTest {
me := &NotifyTest{}
me.fs = newNotifyFs()
me.dir = testutil.TempDir()
entryTtl := 100 * time.Millisecond
opts := &nodefs.Options{
EntryTimeout: entryTtl,
AttrTimeout: entryTtl,
NegativeTimeout: entryTtl,
Debug: testutil.VerboseTest(),
}
me.pathfs = pathfs.NewPathNodeFs(me.fs, nil)
var err error
me.state, me.connector, err = nodefs.MountRoot(me.dir, me.pathfs.Root(), opts)
if err != nil {
t.Fatalf("MountNodeFileSystem failed: %v", err)
}
go me.state.Serve()
if err := me.state.WaitMount(); err != nil {
t.Fatal("WaitMount", err)
}
return me
}
func (t *NotifyTest) Clean() {
err := t.state.Unmount()
if err == nil {
os.RemoveAll(t.dir)
}
}
func TestInodeNotify(t *testing.T) {
test := NewNotifyTest(t)
defer test.Clean()
fs := test.fs
dir := test.dir
fs.sizeChan <- 42
fi, err := os.Lstat(dir + "/file")
if err != nil {
t.Fatalf("Lstat failed: %v", err)
}
if fi.Mode()&os.ModeType != 0 || fi.Size() != 42 {
t.Error(fi)
}
fs.sizeChan <- 666
fi, err = os.Lstat(dir + "/file")
if err != nil {
t.Fatalf("Lstat failed: %v", err)
}
if fi.Mode()&os.ModeType != 0 || fi.Size() == 666 {
t.Error(fi)
}
code := test.pathfs.FileNotify("file", -1, 0)
if !code.Ok() {
t.Error(code)
}
fi, err = os.Lstat(dir + "/file")
if err != nil {
t.Fatalf("Lstat failed: %v", err)
}
if fi.Mode()&os.ModeType != 0 || fi.Size() != 666 {
t.Error(fi)
}
}
func TestEntryNotify(t *testing.T) {
test := NewNotifyTest(t)
defer test.Clean()
dir := test.dir
test.fs.sizeChan <- 42
test.fs.existChan <- false
fn := dir + "/dir/file"
fi, _ := os.Lstat(fn)
if fi != nil {
t.Errorf("File should not exist, %#v", fi)
}
test.fs.existChan <- true
fi, _ = os.Lstat(fn)
if fi != nil {
t.Errorf("negative entry should have been cached: %#v", fi)
}
code := test.pathfs.EntryNotify("dir", "file")
if !code.Ok() {
t.Errorf("EntryNotify returns error: %v", code)
}
fi, err := os.Lstat(fn)
if err != nil {
t.Fatalf("Lstat failed: %v", err)
}
}
|