func TestingBOnePass(b *testing.B, threads int, filelist, mountPoint string) error {
runtime.GC()
var before, after runtime.MemStats
runtime.ReadMemStats(&before)
// We shell out to an external program, so the time spent by
// the part stat'ing doesn't interfere with the time spent by
// the FUSE server.
cmd := exec.Command("./bulkstat.bin",
fmt.Sprintf("-cpu=%d", threads),
fmt.Sprintf("-prefix=%s", mountPoint),
fmt.Sprintf("-N=%d", b.N),
fmt.Sprintf("-quiet=%v", !testutil.VerboseTest()),
filelist)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
b.StartTimer()
err := cmd.Run()
b.StopTimer()
runtime.ReadMemStats(&after)
if err != nil {
return err
}
if testutil.VerboseTest() {
fmt.Printf("GC count %d, total GC time: %d ns/file\n",
after.NumGC-before.NumGC, (after.PauseTotalNs-before.PauseTotalNs)/uint64(b.N))
}
return nil
}
func setupCacheTest(t *testing.T) (string, *pathfs.PathNodeFs, func()) {
dir := testutil.TempDir()
os.Mkdir(dir+"/mnt", 0755)
os.Mkdir(dir+"/orig", 0755)
fs := &cacheFs{
pathfs.NewLoopbackFileSystem(dir + "/orig"),
}
pfs := pathfs.NewPathNodeFs(fs, &pathfs.PathNodeFsOptions{Debug: testutil.VerboseTest()})
opts := nodefs.NewOptions()
opts.Debug = testutil.VerboseTest()
state, _, err := nodefs.MountRoot(dir+"/mnt", pfs.Root(), opts)
if err != nil {
t.Fatalf("MountNodeFileSystem failed: %v", err)
}
go state.Serve()
if err := state.WaitMount(); err != nil {
t.Fatal("WaitMount", err)
}
return dir, pfs, func() {
err := state.Unmount()
if err == nil {
os.RemoveAll(dir)
}
}
}
// Create and mount filesystem.
func NewTestCase(t *testing.T) *testCase {
tc := &testCase{}
tc.tester = t
// Make sure system setting does not affect test.
syscall.Umask(0)
const name string = "hello.txt"
const subdir string = "subdir"
var err error
tc.tmpDir = testutil.TempDir()
tc.orig = tc.tmpDir + "/orig"
tc.mnt = tc.tmpDir + "/mnt"
tc.Mkdir(tc.orig, 0700)
tc.Mkdir(tc.mnt, 0700)
tc.mountFile = filepath.Join(tc.mnt, name)
tc.mountSubdir = filepath.Join(tc.mnt, subdir)
tc.origFile = filepath.Join(tc.orig, name)
tc.origSubdir = filepath.Join(tc.orig, subdir)
var pfs pathfs.FileSystem
pfs = pathfs.NewLoopbackFileSystem(tc.orig)
pfs = pathfs.NewLockingFileSystem(pfs)
tc.pathFs = pathfs.NewPathNodeFs(pfs, &pathfs.PathNodeFsOptions{
ClientInodes: true})
tc.connector = nodefs.NewFileSystemConnector(tc.pathFs.Root(),
&nodefs.Options{
EntryTimeout: testTtl,
AttrTimeout: testTtl,
NegativeTimeout: 0.0,
Debug: testutil.VerboseTest(),
})
tc.state, err = fuse.NewServer(
fuse.NewRawFileSystem(tc.connector.RawFS()), tc.mnt, &fuse.MountOptions{
SingleThreaded: true,
Debug: testutil.VerboseTest(),
})
if err != nil {
t.Fatal("NewServer:", err)
}
go tc.state.Serve()
if err := tc.state.WaitMount(); err != nil {
t.Fatal("WaitMount", err)
}
return tc
}
func TestNonseekable(t *testing.T) {
fs := &nonseekFs{FileSystem: pathfs.NewDefaultFileSystem()}
fs.Length = 200 * 1024
dir := testutil.TempDir()
defer os.RemoveAll(dir)
nfs := pathfs.NewPathNodeFs(fs, nil)
opts := nodefs.NewOptions()
opts.Debug = testutil.VerboseTest()
state, _, err := nodefs.MountRoot(dir, nfs.Root(), opts)
if err != nil {
t.Fatalf("failed: %v", err)
}
defer state.Unmount()
go state.Serve()
if err := state.WaitMount(); err != nil {
t.Fatal("WaitMount", err)
}
f, err := os.Open(dir + "/file")
if err != nil {
t.Fatalf("failed: %v", err)
}
defer f.Close()
b := make([]byte, 200)
n, err := f.ReadAt(b, 20)
if err == nil || n > 0 {
t.Errorf("file was opened nonseekable, but seek successful")
}
}
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 setupFAttrTest(t *testing.T, fs pathfs.FileSystem) (dir string, clean func()) {
dir = testutil.TempDir()
nfs := pathfs.NewPathNodeFs(fs, nil)
opts := nodefs.NewOptions()
opts.Debug = testutil.VerboseTest()
state, _, err := nodefs.MountRoot(dir, nfs.Root(), opts)
if err != nil {
t.Fatalf("MountNodeFileSystem failed: %v", err)
}
go state.Serve()
if err := state.WaitMount(); err != nil {
t.Fatal("WaitMount", err)
}
clean = func() {
if err := state.Unmount(); err != nil {
t.Errorf("cleanup: Unmount: %v", err)
} else {
os.RemoveAll(dir)
}
}
if state.KernelSettings().Flags&fuse.CAP_FILE_OPS == 0 {
clean()
t.Skip("Mount does not support file operations")
}
return dir, clean
}
func defaultReadTest(t *testing.T) (root string, cleanup func()) {
fs := &DefaultReadFS{
FileSystem: pathfs.NewDefaultFileSystem(),
size: 22,
}
var err error
dir := testutil.TempDir()
pathfs := pathfs.NewPathNodeFs(fs, nil)
opts := nodefs.NewOptions()
opts.Debug = testutil.VerboseTest()
state, _, err := nodefs.MountRoot(dir, pathfs.Root(), opts)
if err != nil {
t.Fatalf("MountNodeFileSystem failed: %v", err)
}
go state.Serve()
if err := state.WaitMount(); err != nil {
t.Fatal("WaitMount", err)
}
return dir, func() {
state.Unmount()
os.Remove(dir)
}
}
func TestDefaultXAttr(t *testing.T) {
dir := testutil.TempDir()
defer os.RemoveAll(dir)
root := &xattrNode{
Node: nodefs.NewDefaultNode(),
}
opts := nodefs.NewOptions()
opts.Debug = testutil.VerboseTest()
s, _, err := nodefs.MountRoot(dir, root, opts)
if err != nil {
t.Fatalf("MountRoot: %v", err)
}
go s.Serve()
if err := s.WaitMount(); err != nil {
t.Fatal("WaitMount", err)
}
defer s.Unmount()
var data [1024]byte
sz, err := syscall.Getxattr(filepath.Join(dir, "child"), "attr", data[:])
if err != nil {
t.Fatalf("Getxattr: %v", err)
} else if val := string(data[:sz]); val != "value" {
t.Fatalf("got %v, want 'value'", val)
}
}
// Creates a temporary dir "wd" with 3 directories:
// mnt ... overlayed (unionfs) mount
// rw .... modifiable data
// ro .... read-only data
func setupUfs(t *testing.T) (wd string, cleanup func()) {
// Make sure system setting does not affect test.
syscall.Umask(0)
wd = testutil.TempDir()
err := os.Mkdir(wd+"/mnt", 0700)
if err != nil {
t.Fatalf("Mkdir failed: %v", err)
}
err = os.Mkdir(wd+"/rw", 0700)
if err != nil {
t.Fatalf("Mkdir failed: %v", err)
}
os.Mkdir(wd+"/ro", 0700)
if err != nil {
t.Fatalf("Mkdir failed: %v", err)
}
var fses []pathfs.FileSystem
fses = append(fses, pathfs.NewLoopbackFileSystem(wd+"/rw"))
fses = append(fses,
NewCachingFileSystem(pathfs.NewLoopbackFileSystem(wd+"/ro"), 0))
ufs, err := NewUnionFs(fses, testOpts)
if err != nil {
t.Fatalf("NewUnionFs: %v", err)
}
// We configure timeouts are smaller, so we can check for
// UnionFs's cache consistency.
opts := &nodefs.Options{
EntryTimeout: entryTtl / 2,
AttrTimeout: entryTtl / 2,
NegativeTimeout: entryTtl / 2,
PortableInodes: true,
Debug: testutil.VerboseTest(),
}
pathfs := pathfs.NewPathNodeFs(ufs,
&pathfs.PathNodeFsOptions{ClientInodes: true,
Debug: opts.Debug,
})
state, _, err := nodefs.MountRoot(wd+"/mnt", pathfs.Root(), opts)
if err != nil {
t.Fatalf("MountNodeFileSystem failed: %v", err)
}
go state.Serve()
state.WaitMount()
return wd, func() {
err := state.Unmount()
if err != nil {
return
}
setRecursiveWritable(t, wd, true)
os.RemoveAll(wd)
}
}
func TestGetAttrRace(t *testing.T) {
dir := testutil.TempDir()
defer os.RemoveAll(dir)
os.Mkdir(dir+"/mnt", 0755)
os.Mkdir(dir+"/orig", 0755)
fs := pathfs.NewLoopbackFileSystem(dir + "/orig")
pfs := pathfs.NewPathNodeFs(fs, &pathfs.PathNodeFsOptions{Debug: testutil.VerboseTest()})
state, _, err := nodefs.MountRoot(dir+"/mnt", pfs.Root(),
&nodefs.Options{Debug: testutil.VerboseTest()})
if err != nil {
t.Fatalf("MountNodeFileSystem failed: %v", err)
}
go state.Serve()
if err := state.WaitMount(); err != nil {
t.Fatal("WaitMount", err)
}
defer state.Unmount()
var wg sync.WaitGroup
n := 100
wg.Add(n)
var statErr error
for i := 0; i < n; i++ {
go func() {
defer wg.Done()
fn := dir + "/mnt/file"
err := ioutil.WriteFile(fn, []byte{42}, 0644)
if err != nil {
statErr = err
return
}
_, err = os.Lstat(fn)
if err != nil {
statErr = err
}
}()
}
wg.Wait()
if statErr != nil {
t.Error(statErr)
}
}
func setupFs(fs pathfs.FileSystem, N int) (string, func()) {
opts := &nodefs.Options{
EntryTimeout: 0.0,
AttrTimeout: 0.0,
NegativeTimeout: 0.0,
}
mountPoint := testutil.TempDir()
nfs := pathfs.NewPathNodeFs(fs, nil)
state, _, err := nodefs.MountRoot(mountPoint, nfs.Root(), opts)
if err != nil {
panic(fmt.Sprintf("cannot mount %v", err)) // ugh - benchmark has no error methods.
}
lmap := NewLatencyMap()
if testutil.VerboseTest() {
state.RecordLatencies(lmap)
}
go state.Serve()
return mountPoint, func() {
if testutil.VerboseTest() {
var total time.Duration
for _, n := range []string{"LOOKUP", "GETATTR", "OPENDIR", "READDIR",
"READDIRPLUS", "RELEASEDIR", "FLUSH",
} {
if count, dt := lmap.Get(n); count > 0 {
total += dt
log.Printf("%s %v/call n=%d", n,
dt/time.Duration(count), count)
}
}
log.Printf("total %v, %v/bench op", total, total/time.Duration(N))
}
err := state.Unmount()
if err != nil {
log.Println("error during unmount", err)
} else {
os.RemoveAll(mountPoint)
}
}
}
func setupZipfs(t *testing.T) (mountPoint string, cleanup func()) {
root, err := NewArchiveFileSystem(testZipFile())
if err != nil {
t.Fatalf("NewArchiveFileSystem failed: %v", err)
}
mountPoint = testutil.TempDir()
state, _, err := nodefs.MountRoot(mountPoint, root, &nodefs.Options{
Debug: testutil.VerboseTest(),
})
go state.Serve()
state.WaitMount()
return mountPoint, func() {
state.Unmount()
os.RemoveAll(mountPoint)
}
}
func setupMzfs(t *testing.T) (mountPoint string, state *fuse.Server, cleanup func()) {
fs := NewMultiZipFs()
mountPoint = testutil.TempDir()
nfs := pathfs.NewPathNodeFs(fs, nil)
state, _, err := nodefs.MountRoot(mountPoint, nfs.Root(), &nodefs.Options{
EntryTimeout: testTtl,
AttrTimeout: testTtl,
NegativeTimeout: 0.0,
Debug: testutil.VerboseTest(),
})
if err != nil {
t.Fatalf("MountNodeFileSystem failed: %v", err)
}
go state.Serve()
state.WaitMount()
return mountPoint, state, func() {
state.Unmount()
os.RemoveAll(mountPoint)
}
}
func TestDeleteNotify(t *testing.T) {
dir := testutil.TempDir()
defer os.RemoveAll(dir)
root := nodefs.NewMemNodeFSRoot(dir + "/backing")
conn := nodefs.NewFileSystemConnector(root,
&nodefs.Options{PortableInodes: true})
mnt := dir + "/mnt"
err := os.Mkdir(mnt, 0755)
if err != nil {
t.Fatal(err)
}
state, err := fuse.NewServer(conn.RawFS(), mnt, &fuse.MountOptions{
Debug: testutil.VerboseTest(),
})
if err != nil {
t.Fatal(err)
}
go state.Serve()
defer state.Unmount()
if err := state.WaitMount(); err != nil {
t.Fatal("WaitMount", err)
}
_, code := root.Mkdir("testdir", 0755, nil)
if !code.Ok() {
t.Fatal(code)
}
ch := root.Inode().RmChild("testdir")
ch.Node().SetInode(nil)
flip := flipNode{
Node: ch.Node(),
ok: make(chan int),
}
root.Inode().NewChild("testdir", true, &flip)
err = ioutil.WriteFile(mnt+"/testdir/testfile", []byte{42}, 0644)
if err != nil {
t.Fatal(err)
}
// Do the test here, so we surely have state.KernelSettings()
if state.KernelSettings().Minor < 18 {
t.Log("Kernel does not support deletion notify; aborting test.")
return
}
buf := bytes.Buffer{}
cmd := exec.Command("/usr/bin/tail", "-f", "testfile")
cmd.Dir = mnt + "/testdir"
cmd.Stdin = &buf
cmd.Stdout = &bytes.Buffer{}
cmd.Stderr = os.Stderr
err = cmd.Start()
if err != nil {
t.Fatal(err)
}
defer func() {
cmd.Process.Kill()
time.Sleep(100 * time.Millisecond)
}()
// Wait until tail opened the file.
time.Sleep(100 * time.Millisecond)
err = os.Remove(mnt + "/testdir/testfile")
if err != nil {
t.Fatal(err)
}
// Simulate deletion+mkdir coming from the network
close(flip.ok)
oldCh := root.Inode().RmChild("testdir")
_, code = root.Inode().Node().Mkdir("testdir", 0755, nil)
if !code.Ok() {
t.Fatal("mkdir status", code)
}
conn.DeleteNotify(root.Inode(), oldCh, "testdir")
_, err = os.Lstat(mnt + "/testdir")
if err != nil {
t.Fatalf("lstat after del + mkdir failed: %v", err)
}
}
"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"
)
const entryTtl = 100 * time.Millisecond
var testAOpts = AutoUnionFsOptions{
UnionFsOptions: testOpts,
Options: nodefs.Options{
EntryTimeout: entryTtl,
AttrTimeout: entryTtl,
NegativeTimeout: 0,
Debug: testutil.VerboseTest(),
},
HideReadonly: true,
Version: "version",
}
func init() {
testAOpts.Options.Debug = testutil.VerboseTest()
}
func WriteFile(t *testing.T, name string, contents string) {
err := ioutil.WriteFile(name, []byte(contents), 0644)
if err != nil {
t.Fatalf("WriteFile failed: %v", err)
}
}
func init() {
testAOpts.Options.Debug = testutil.VerboseTest()
}
func TestXAttrCaching(t *testing.T) {
wd := testutil.TempDir()
defer os.RemoveAll(wd)
os.Mkdir(wd+"/mnt", 0700)
err := os.Mkdir(wd+"/rw", 0700)
if err != nil {
t.Fatalf("Mkdir failed: %v", err)
}
rwFS := pathfs.NewLoopbackFileSystem(wd + "/rw")
roFS := &TestFS{
FileSystem: pathfs.NewDefaultFileSystem(),
}
ufs, err := NewUnionFs([]pathfs.FileSystem{rwFS,
NewCachingFileSystem(roFS, entryTtl)}, testOpts)
if err != nil {
t.Fatalf("NewUnionFs: %v", err)
}
opts := &nodefs.Options{
EntryTimeout: entryTtl / 2,
AttrTimeout: entryTtl / 2,
NegativeTimeout: entryTtl / 2,
Debug: testutil.VerboseTest(),
}
pathfs := pathfs.NewPathNodeFs(ufs,
&pathfs.PathNodeFsOptions{ClientInodes: true,
Debug: testutil.VerboseTest()})
server, _, err := nodefs.MountRoot(wd+"/mnt", pathfs.Root(), opts)
if err != nil {
t.Fatalf("MountNodeFileSystem failed: %v", err)
}
defer server.Unmount()
go server.Serve()
server.WaitMount()
if fi, err := os.Lstat(wd + "/mnt"); err != nil || !fi.IsDir() {
t.Fatalf("root not readable: %v, %v", err, fi)
}
buf := make([]byte, 1024)
n, err := Getxattr(wd+"/mnt/file", "user.attr", buf)
if err != nil {
t.Fatalf("Getxattr: %v", err)
}
want := "\x2a"
got := string(buf[:n])
if got != want {
t.Fatalf("Got %q want %q", got, err)
}
time.Sleep(entryTtl / 3)
n, err = Getxattr(wd+"/mnt/file", "user.attr", buf)
if err != nil {
t.Fatalf("Getxattr: %v", err)
}
got = string(buf[:n])
if got != want {
t.Fatalf("Got %q want %q", got, err)
}
time.Sleep(entryTtl / 3)
// Make sure that an interceding Getxattr() to a filesystem that doesn't implement GetXAttr() doesn't affect future calls.
Getxattr(wd, "whatever", buf)
n, err = Getxattr(wd+"/mnt/file", "user.attr", buf)
if err != nil {
t.Fatalf("Getxattr: %v", err)
}
got = string(buf[:n])
if got != want {
t.Fatalf("Got %q want %q", got, err)
}
if roFS.xattrRead != 1 {
t.Errorf("got xattrRead=%d, want 1", roFS.xattrRead)
}
}
func TestUnionFsDisappearing(t *testing.T) {
// This init is like setupUfs, but we want access to the
// writable Fs.
wd := testutil.TempDir()
defer os.RemoveAll(wd)
err := os.Mkdir(wd+"/mnt", 0700)
if err != nil {
t.Fatalf("Mkdir failed: %v", err)
}
err = os.Mkdir(wd+"/rw", 0700)
if err != nil {
t.Fatalf("Mkdir failed: %v", err)
}
os.Mkdir(wd+"/ro", 0700)
if err != nil {
t.Fatalf("Mkdir failed: %v", err)
}
wrFs := newDisappearingFS(pathfs.NewLoopbackFileSystem(wd+"/rw"),
pathfs.NewLoopbackFileSystem("/dev/null"))
var fses []pathfs.FileSystem
fses = append(fses, pathfs.NewLockingFileSystem(wrFs))
fses = append(fses, pathfs.NewLoopbackFileSystem(wd+"/ro"))
ufs, err := NewUnionFs(fses, testOpts)
if err != nil {
t.Fatalf("NewUnionFs: %v", err)
}
opts := &nodefs.Options{
EntryTimeout: entryTtl,
AttrTimeout: entryTtl,
NegativeTimeout: entryTtl,
Debug: testutil.VerboseTest(),
}
nfs := pathfs.NewPathNodeFs(ufs, nil)
state, _, err := nodefs.MountRoot(wd+"/mnt", nfs.Root(), opts)
if err != nil {
t.Fatalf("MountNodeFileSystem failed: %v", err)
}
defer state.Unmount()
go state.Serve()
state.WaitMount()
err = ioutil.WriteFile(wd+"/ro/file", []byte("blabla"), 0644)
if err != nil {
t.Fatalf("WriteFile failed: %v", err)
}
setRecursiveWritable(t, wd+"/ro", false)
err = os.Remove(wd + "/mnt/file")
if err != nil {
t.Fatalf("Remove failed: %v", err)
}
wrFs.visibleChan <- false
time.Sleep((3 * entryTtl) / 2)
_, err = ioutil.ReadDir(wd + "/mnt")
if err == nil {
t.Fatal("Readdir should have failed")
}
err = ioutil.WriteFile(wd+"/mnt/file2", []byte("blabla"), 0644)
if err == nil {
t.Fatal("write should have failed")
}
// Wait for the caches to purge, and then restore.
time.Sleep((3 * entryTtl) / 2)
wrFs.visibleChan <- true
_, err = ioutil.ReadDir(wd + "/mnt")
if err != nil {
t.Fatal("Readdir should succeed", err)
}
err = ioutil.WriteFile(wd+"/mnt/file2", []byte("blabla"), 0644)
if err != nil {
t.Fatal("write should succeed", err)
}
}
