mirror of
https://github.com/octoleo/restic.git
synced 2024-11-30 08:44:02 +00:00
2844 lines
64 KiB
Go
2844 lines
64 KiB
Go
package fs_test
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import (
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"bytes"
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"errors"
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"io"
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"io/ioutil"
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"log"
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"os"
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"path"
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"runtime"
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"strings"
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"sync"
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"sync/atomic"
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"syscall"
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"testing"
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"time"
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"bazil.org/fuse"
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"bazil.org/fuse/fs"
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"bazil.org/fuse/fs/fstestutil"
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"bazil.org/fuse/fs/fstestutil/record"
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"bazil.org/fuse/fuseutil"
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"bazil.org/fuse/syscallx"
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"golang.org/x/net/context"
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)
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// TO TEST:
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// Lookup(*LookupRequest, *LookupResponse)
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// Getattr(*GetattrRequest, *GetattrResponse)
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// Attr with explicit inode
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// Setattr(*SetattrRequest, *SetattrResponse)
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// Access(*AccessRequest)
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// Open(*OpenRequest, *OpenResponse)
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// Write(*WriteRequest, *WriteResponse)
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// Flush(*FlushRequest, *FlushResponse)
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func init() {
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fstestutil.DebugByDefault()
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}
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// symlink can be embedded in a struct to make it look like a symlink.
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type symlink struct {
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target string
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}
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func (f symlink) Attr(ctx context.Context, a *fuse.Attr) error {
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a.Mode = os.ModeSymlink | 0666
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return nil
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}
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// fifo can be embedded in a struct to make it look like a named pipe.
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type fifo struct{}
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func (f fifo) Attr(ctx context.Context, a *fuse.Attr) error {
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a.Mode = os.ModeNamedPipe | 0666
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return nil
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}
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func TestMountpointDoesNotExist(t *testing.T) {
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t.Parallel()
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tmp, err := ioutil.TempDir("", "fusetest")
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if err != nil {
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t.Fatal(err)
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}
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defer os.Remove(tmp)
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mountpoint := path.Join(tmp, "does-not-exist")
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conn, err := fuse.Mount(mountpoint)
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if err == nil {
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conn.Close()
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t.Fatalf("expected error with non-existent mountpoint")
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}
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if _, ok := err.(*fuse.MountpointDoesNotExistError); !ok {
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t.Fatalf("wrong error from mount: %T: %v", err, err)
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}
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}
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type badRootFS struct{}
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func (badRootFS) Root() (fs.Node, error) {
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// pick a really distinct error, to identify it later
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return nil, fuse.Errno(syscall.ENAMETOOLONG)
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}
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func TestRootErr(t *testing.T) {
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t.Parallel()
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mnt, err := fstestutil.MountedT(t, badRootFS{}, nil)
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if err == nil {
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// path for synchronous mounts (linux): started out fine, now
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// wait for Serve to cycle through
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err = <-mnt.Error
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// without this, unmount will keep failing with EBUSY; nudge
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// kernel into realizing InitResponse will not happen
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mnt.Conn.Close()
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mnt.Close()
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}
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if err == nil {
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t.Fatal("expected an error")
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}
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// TODO this should not be a textual comparison, Serve hides
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// details
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if err.Error() != "cannot obtain root node: file name too long" {
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t.Errorf("Unexpected error: %v", err)
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}
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}
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type testPanic struct{}
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type panicSentinel struct{}
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var _ error = panicSentinel{}
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func (panicSentinel) Error() string { return "just a test" }
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var _ fuse.ErrorNumber = panicSentinel{}
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func (panicSentinel) Errno() fuse.Errno {
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return fuse.Errno(syscall.ENAMETOOLONG)
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}
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func (f testPanic) Root() (fs.Node, error) {
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return f, nil
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}
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func (f testPanic) Attr(ctx context.Context, a *fuse.Attr) error {
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a.Inode = 1
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a.Mode = os.ModeDir | 0777
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return nil
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}
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func (f testPanic) Mkdir(ctx context.Context, req *fuse.MkdirRequest) (fs.Node, error) {
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panic(panicSentinel{})
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}
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func TestPanic(t *testing.T) {
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t.Parallel()
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mnt, err := fstestutil.MountedT(t, testPanic{}, nil)
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if err != nil {
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t.Fatal(err)
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}
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defer mnt.Close()
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err = os.Mkdir(mnt.Dir+"/trigger-a-panic", 0700)
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if nerr, ok := err.(*os.PathError); !ok || nerr.Err != syscall.ENAMETOOLONG {
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t.Fatalf("wrong error from panicking handler: %T: %v", err, err)
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}
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}
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type testStatFS struct{}
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func (f testStatFS) Root() (fs.Node, error) {
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return f, nil
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}
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func (f testStatFS) Attr(ctx context.Context, a *fuse.Attr) error {
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a.Inode = 1
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a.Mode = os.ModeDir | 0777
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return nil
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}
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func (f testStatFS) Statfs(ctx context.Context, req *fuse.StatfsRequest, resp *fuse.StatfsResponse) error {
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resp.Blocks = 42
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resp.Files = 13
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return nil
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}
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func TestStatfs(t *testing.T) {
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t.Parallel()
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mnt, err := fstestutil.MountedT(t, testStatFS{}, nil)
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if err != nil {
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t.Fatal(err)
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}
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defer mnt.Close()
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// Perform an operation that forces the OS X mount to be ready, so
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// we know the Statfs handler will really be called. OS X insists
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// on volumes answering Statfs calls very early (before FUSE
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// handshake), so OSXFUSE gives made-up answers for a few brief moments
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// during the mount process.
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if _, err := os.Stat(mnt.Dir + "/does-not-exist"); !os.IsNotExist(err) {
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t.Fatal(err)
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}
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{
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var st syscall.Statfs_t
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err = syscall.Statfs(mnt.Dir, &st)
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if err != nil {
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t.Errorf("Statfs failed: %v", err)
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}
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t.Logf("Statfs got: %#v", st)
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if g, e := st.Blocks, uint64(42); g != e {
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t.Errorf("got Blocks = %d; want %d", g, e)
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}
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if g, e := st.Files, uint64(13); g != e {
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t.Errorf("got Files = %d; want %d", g, e)
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}
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}
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{
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var st syscall.Statfs_t
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f, err := os.Open(mnt.Dir)
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if err != nil {
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t.Errorf("Open for fstatfs failed: %v", err)
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}
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defer f.Close()
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err = syscall.Fstatfs(int(f.Fd()), &st)
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if err != nil {
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t.Errorf("Fstatfs failed: %v", err)
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}
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t.Logf("Fstatfs got: %#v", st)
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if g, e := st.Blocks, uint64(42); g != e {
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t.Errorf("got Blocks = %d; want %d", g, e)
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}
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if g, e := st.Files, uint64(13); g != e {
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t.Errorf("got Files = %d; want %d", g, e)
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}
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}
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}
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// Test Stat of root.
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type root struct{}
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func (f root) Root() (fs.Node, error) {
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return f, nil
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}
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func (root) Attr(ctx context.Context, a *fuse.Attr) error {
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a.Inode = 1
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a.Mode = os.ModeDir | 0555
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// This has to be a power of two, but try to pick something that's an unlikely default.
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a.BlockSize = 65536
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return nil
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}
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func TestStatRoot(t *testing.T) {
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t.Parallel()
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mnt, err := fstestutil.MountedT(t, root{}, nil)
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if err != nil {
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t.Fatal(err)
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}
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defer mnt.Close()
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fi, err := os.Stat(mnt.Dir)
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if err != nil {
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t.Fatalf("root getattr failed with %v", err)
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}
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mode := fi.Mode()
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if (mode & os.ModeType) != os.ModeDir {
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t.Errorf("root is not a directory: %#v", fi)
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}
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if mode.Perm() != 0555 {
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t.Errorf("root has weird access mode: %v", mode.Perm())
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}
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switch stat := fi.Sys().(type) {
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case *syscall.Stat_t:
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if stat.Ino != 1 {
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t.Errorf("root has wrong inode: %v", stat.Ino)
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}
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if stat.Nlink != 1 {
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t.Errorf("root has wrong link count: %v", stat.Nlink)
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}
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if stat.Uid != 0 {
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t.Errorf("root has wrong uid: %d", stat.Uid)
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}
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if stat.Gid != 0 {
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t.Errorf("root has wrong gid: %d", stat.Gid)
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}
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if mnt.Conn.Protocol().HasAttrBlockSize() {
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// convert stat.Blksize too because it's int64 on Linux but
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// int32 on Darwin.
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if g, e := int64(stat.Blksize), int64(65536); g != e {
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t.Errorf("root has wrong blocksize: %d != %d", g, e)
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}
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}
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}
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}
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// Test Read calling ReadAll.
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type readAll struct {
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fstestutil.File
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}
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const hi = "hello, world"
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func (readAll) Attr(ctx context.Context, a *fuse.Attr) error {
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a.Mode = 0666
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a.Size = uint64(len(hi))
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return nil
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}
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func (readAll) ReadAll(ctx context.Context) ([]byte, error) {
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return []byte(hi), nil
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}
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func testReadAll(t *testing.T, path string) {
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f, err := os.Open(path)
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if err != nil {
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t.Fatal(err)
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}
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defer f.Close()
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data := make([]byte, 4096)
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n, err := f.Read(data)
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if err != nil {
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t.Fatal(err)
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}
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if g, e := string(data[:n]), hi; g != e {
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t.Errorf("readAll = %q, want %q", g, e)
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}
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}
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func TestReadAll(t *testing.T) {
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t.Parallel()
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mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": readAll{}}}, nil)
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if err != nil {
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t.Fatal(err)
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}
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defer mnt.Close()
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testReadAll(t, mnt.Dir+"/child")
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}
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// Test Read.
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type readWithHandleRead struct {
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fstestutil.File
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}
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func (readWithHandleRead) Attr(ctx context.Context, a *fuse.Attr) error {
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a.Mode = 0666
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a.Size = uint64(len(hi))
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return nil
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}
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func (readWithHandleRead) Read(ctx context.Context, req *fuse.ReadRequest, resp *fuse.ReadResponse) error {
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fuseutil.HandleRead(req, resp, []byte(hi))
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return nil
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}
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func TestReadAllWithHandleRead(t *testing.T) {
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t.Parallel()
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mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": readWithHandleRead{}}}, nil)
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if err != nil {
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t.Fatal(err)
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}
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defer mnt.Close()
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testReadAll(t, mnt.Dir+"/child")
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}
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type readFlags struct {
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fstestutil.File
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fileFlags record.Recorder
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}
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func (r *readFlags) Attr(ctx context.Context, a *fuse.Attr) error {
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a.Mode = 0666
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a.Size = uint64(len(hi))
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return nil
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}
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func (r *readFlags) Read(ctx context.Context, req *fuse.ReadRequest, resp *fuse.ReadResponse) error {
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r.fileFlags.Record(req.FileFlags)
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fuseutil.HandleRead(req, resp, []byte(hi))
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return nil
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}
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func TestReadFileFlags(t *testing.T) {
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t.Parallel()
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r := &readFlags{}
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mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": r}}, nil)
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if err != nil {
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t.Fatal(err)
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}
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defer mnt.Close()
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if !mnt.Conn.Protocol().HasReadWriteFlags() {
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t.Skip("Old FUSE protocol")
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}
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f, err := os.OpenFile(mnt.Dir+"/child", os.O_RDWR|os.O_APPEND, 0666)
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if err != nil {
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t.Fatal(err)
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}
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defer f.Close()
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if _, err := f.Read(make([]byte, 4096)); err != nil {
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t.Fatal(err)
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}
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_ = f.Close()
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want := fuse.OpenReadWrite | fuse.OpenAppend
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if runtime.GOOS == "darwin" {
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// OSXFUSE shares one read and one write handle for all
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// clients, so it uses a OpenReadOnly handle for performing
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// our read.
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//
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// If this test starts failing in the future, that probably
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// means they added the feature, and we want to notice that!
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want = fuse.OpenReadOnly
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}
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if g, e := r.fileFlags.Recorded().(fuse.OpenFlags), want; g != e {
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t.Errorf("read saw file flags %+v, want %+v", g, e)
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}
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}
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type writeFlags struct {
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fstestutil.File
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fileFlags record.Recorder
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}
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func (r *writeFlags) Attr(ctx context.Context, a *fuse.Attr) error {
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a.Mode = 0666
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a.Size = uint64(len(hi))
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return nil
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}
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func (r *writeFlags) Read(ctx context.Context, req *fuse.ReadRequest, resp *fuse.ReadResponse) error {
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// OSXFUSE 3.0.4 does a read-modify-write cycle even when the
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// write was for 4096 bytes.
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fuseutil.HandleRead(req, resp, []byte(hi))
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return nil
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}
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func (r *writeFlags) Write(ctx context.Context, req *fuse.WriteRequest, resp *fuse.WriteResponse) error {
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r.fileFlags.Record(req.FileFlags)
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resp.Size = len(req.Data)
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return nil
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}
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|
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func TestWriteFileFlags(t *testing.T) {
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t.Parallel()
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r := &writeFlags{}
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mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": r}}, nil)
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if err != nil {
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t.Fatal(err)
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}
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defer mnt.Close()
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|
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if !mnt.Conn.Protocol().HasReadWriteFlags() {
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t.Skip("Old FUSE protocol")
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}
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|
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f, err := os.OpenFile(mnt.Dir+"/child", os.O_RDWR|os.O_APPEND, 0666)
|
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if err != nil {
|
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t.Fatal(err)
|
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}
|
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defer f.Close()
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if _, err := f.Write(make([]byte, 4096)); err != nil {
|
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t.Fatal(err)
|
|
}
|
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_ = f.Close()
|
|
|
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want := fuse.OpenReadWrite | fuse.OpenAppend
|
|
if runtime.GOOS == "darwin" {
|
|
// OSXFUSE shares one read and one write handle for all
|
|
// clients, so it uses a OpenWriteOnly handle for performing
|
|
// our read.
|
|
//
|
|
// If this test starts failing in the future, that probably
|
|
// means they added the feature, and we want to notice that!
|
|
want = fuse.OpenWriteOnly
|
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}
|
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if g, e := r.fileFlags.Recorded().(fuse.OpenFlags), want; g != e {
|
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t.Errorf("write saw file flags %+v, want %+v", g, e)
|
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}
|
|
}
|
|
|
|
// Test Release.
|
|
|
|
type release struct {
|
|
fstestutil.File
|
|
record.ReleaseWaiter
|
|
}
|
|
|
|
func TestRelease(t *testing.T) {
|
|
t.Parallel()
|
|
r := &release{}
|
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mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": r}}, nil)
|
|
if err != nil {
|
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t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
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|
|
f, err := os.Open(mnt.Dir + "/child")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
f.Close()
|
|
if !r.WaitForRelease(1 * time.Second) {
|
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t.Error("Close did not Release in time")
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|
}
|
|
}
|
|
|
|
// Test Write calling basic Write, with an fsync thrown in too.
|
|
|
|
type write struct {
|
|
fstestutil.File
|
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record.Writes
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record.Fsyncs
|
|
}
|
|
|
|
func TestWrite(t *testing.T) {
|
|
t.Parallel()
|
|
w := &write{}
|
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mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": w}}, nil)
|
|
if err != nil {
|
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t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
f, err := os.Create(mnt.Dir + "/child")
|
|
if err != nil {
|
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t.Fatalf("Create: %v", err)
|
|
}
|
|
defer f.Close()
|
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n, err := f.Write([]byte(hi))
|
|
if err != nil {
|
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t.Fatalf("Write: %v", err)
|
|
}
|
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if n != len(hi) {
|
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t.Fatalf("short write; n=%d; hi=%d", n, len(hi))
|
|
}
|
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|
|
err = syscall.Fsync(int(f.Fd()))
|
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if err != nil {
|
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t.Fatalf("Fsync = %v", err)
|
|
}
|
|
if w.RecordedFsync() == (fuse.FsyncRequest{}) {
|
|
t.Errorf("never received expected fsync call")
|
|
}
|
|
|
|
err = f.Close()
|
|
if err != nil {
|
|
t.Fatalf("Close: %v", err)
|
|
}
|
|
|
|
if got := string(w.RecordedWriteData()); got != hi {
|
|
t.Errorf("write = %q, want %q", got, hi)
|
|
}
|
|
}
|
|
|
|
// Test Write of a larger buffer.
|
|
|
|
type writeLarge struct {
|
|
fstestutil.File
|
|
record.Writes
|
|
}
|
|
|
|
func TestWriteLarge(t *testing.T) {
|
|
t.Parallel()
|
|
w := &write{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": w}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
f, err := os.Create(mnt.Dir + "/child")
|
|
if err != nil {
|
|
t.Fatalf("Create: %v", err)
|
|
}
|
|
defer f.Close()
|
|
const one = "xyzzyfoo"
|
|
large := bytes.Repeat([]byte(one), 8192)
|
|
n, err := f.Write(large)
|
|
if err != nil {
|
|
t.Fatalf("Write: %v", err)
|
|
}
|
|
if g, e := n, len(large); g != e {
|
|
t.Fatalf("short write: %d != %d", g, e)
|
|
}
|
|
|
|
err = f.Close()
|
|
if err != nil {
|
|
t.Fatalf("Close: %v", err)
|
|
}
|
|
|
|
got := w.RecordedWriteData()
|
|
if g, e := len(got), len(large); g != e {
|
|
t.Errorf("write wrong length: %d != %d", g, e)
|
|
}
|
|
if g := strings.Replace(string(got), one, "", -1); g != "" {
|
|
t.Errorf("write wrong data: expected repeats of %q, also got %q", one, g)
|
|
}
|
|
}
|
|
|
|
// Test Write calling Setattr+Write+Flush.
|
|
|
|
type writeTruncateFlush struct {
|
|
fstestutil.File
|
|
record.Writes
|
|
record.Setattrs
|
|
record.Flushes
|
|
}
|
|
|
|
func TestWriteTruncateFlush(t *testing.T) {
|
|
t.Parallel()
|
|
w := &writeTruncateFlush{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": w}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
err = ioutil.WriteFile(mnt.Dir+"/child", []byte(hi), 0666)
|
|
if err != nil {
|
|
t.Fatalf("WriteFile: %v", err)
|
|
}
|
|
if w.RecordedSetattr() == (fuse.SetattrRequest{}) {
|
|
t.Errorf("writeTruncateFlush expected Setattr")
|
|
}
|
|
if !w.RecordedFlush() {
|
|
t.Errorf("writeTruncateFlush expected Setattr")
|
|
}
|
|
if got := string(w.RecordedWriteData()); got != hi {
|
|
t.Errorf("writeTruncateFlush = %q, want %q", got, hi)
|
|
}
|
|
}
|
|
|
|
// Test Mkdir.
|
|
|
|
type mkdir1 struct {
|
|
fstestutil.Dir
|
|
record.Mkdirs
|
|
}
|
|
|
|
func (f *mkdir1) Mkdir(ctx context.Context, req *fuse.MkdirRequest) (fs.Node, error) {
|
|
f.Mkdirs.Mkdir(ctx, req)
|
|
return &mkdir1{}, nil
|
|
}
|
|
|
|
func TestMkdir(t *testing.T) {
|
|
f := &mkdir1{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{f}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
// uniform umask needed to make os.Mkdir's mode into something
|
|
// reproducible
|
|
defer syscall.Umask(syscall.Umask(0022))
|
|
err = os.Mkdir(mnt.Dir+"/foo", 0771)
|
|
if err != nil {
|
|
t.Fatalf("mkdir: %v", err)
|
|
}
|
|
want := fuse.MkdirRequest{Name: "foo", Mode: os.ModeDir | 0751}
|
|
if mnt.Conn.Protocol().HasUmask() {
|
|
want.Umask = 0022
|
|
}
|
|
if runtime.GOOS == "darwin" {
|
|
// https://github.com/osxfuse/osxfuse/issues/225
|
|
want.Umask = 0
|
|
}
|
|
if g, e := f.RecordedMkdir(), want; g != e {
|
|
t.Errorf("mkdir saw %+v, want %+v", g, e)
|
|
}
|
|
}
|
|
|
|
// Test Create (and fsync)
|
|
|
|
type create1file struct {
|
|
fstestutil.File
|
|
record.Creates
|
|
record.Fsyncs
|
|
}
|
|
|
|
type create1 struct {
|
|
fstestutil.Dir
|
|
f create1file
|
|
}
|
|
|
|
func (f *create1) Create(ctx context.Context, req *fuse.CreateRequest, resp *fuse.CreateResponse) (fs.Node, fs.Handle, error) {
|
|
if req.Name != "foo" {
|
|
log.Printf("ERROR create1.Create unexpected name: %q\n", req.Name)
|
|
return nil, nil, fuse.EPERM
|
|
}
|
|
|
|
_, _, _ = f.f.Creates.Create(ctx, req, resp)
|
|
return &f.f, &f.f, nil
|
|
}
|
|
|
|
func TestCreate(t *testing.T) {
|
|
f := &create1{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{f}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
// uniform umask needed to make os.Create's 0666 into something
|
|
// reproducible
|
|
defer syscall.Umask(syscall.Umask(0022))
|
|
ff, err := os.OpenFile(mnt.Dir+"/foo", os.O_RDWR|os.O_CREATE|os.O_TRUNC, 0640)
|
|
if err != nil {
|
|
t.Fatalf("create1 WriteFile: %v", err)
|
|
}
|
|
defer ff.Close()
|
|
|
|
want := fuse.CreateRequest{
|
|
Name: "foo",
|
|
Flags: fuse.OpenReadWrite | fuse.OpenCreate | fuse.OpenTruncate,
|
|
Mode: 0640,
|
|
}
|
|
if mnt.Conn.Protocol().HasUmask() {
|
|
want.Umask = 0022
|
|
}
|
|
if runtime.GOOS == "darwin" {
|
|
// OS X does not pass O_TRUNC here, Linux does; as this is a
|
|
// Create, that's acceptable
|
|
want.Flags &^= fuse.OpenTruncate
|
|
|
|
// https://github.com/osxfuse/osxfuse/issues/225
|
|
want.Umask = 0
|
|
}
|
|
got := f.f.RecordedCreate()
|
|
if runtime.GOOS == "linux" {
|
|
// Linux <3.7 accidentally leaks O_CLOEXEC through to FUSE;
|
|
// avoid spurious test failures
|
|
got.Flags &^= fuse.OpenFlags(syscall.O_CLOEXEC)
|
|
}
|
|
if g, e := got, want; g != e {
|
|
t.Fatalf("create saw %+v, want %+v", g, e)
|
|
}
|
|
|
|
err = syscall.Fsync(int(ff.Fd()))
|
|
if err != nil {
|
|
t.Fatalf("Fsync = %v", err)
|
|
}
|
|
|
|
if f.f.RecordedFsync() == (fuse.FsyncRequest{}) {
|
|
t.Errorf("never received expected fsync call")
|
|
}
|
|
|
|
ff.Close()
|
|
}
|
|
|
|
// Test Create + Write + Remove
|
|
|
|
type create3file struct {
|
|
fstestutil.File
|
|
record.Writes
|
|
}
|
|
|
|
type create3 struct {
|
|
fstestutil.Dir
|
|
f create3file
|
|
fooCreated record.MarkRecorder
|
|
fooRemoved record.MarkRecorder
|
|
}
|
|
|
|
func (f *create3) Create(ctx context.Context, req *fuse.CreateRequest, resp *fuse.CreateResponse) (fs.Node, fs.Handle, error) {
|
|
if req.Name != "foo" {
|
|
log.Printf("ERROR create3.Create unexpected name: %q\n", req.Name)
|
|
return nil, nil, fuse.EPERM
|
|
}
|
|
f.fooCreated.Mark()
|
|
return &f.f, &f.f, nil
|
|
}
|
|
|
|
func (f *create3) Lookup(ctx context.Context, name string) (fs.Node, error) {
|
|
if f.fooCreated.Recorded() && !f.fooRemoved.Recorded() && name == "foo" {
|
|
return &f.f, nil
|
|
}
|
|
return nil, fuse.ENOENT
|
|
}
|
|
|
|
func (f *create3) Remove(ctx context.Context, r *fuse.RemoveRequest) error {
|
|
if f.fooCreated.Recorded() && !f.fooRemoved.Recorded() &&
|
|
r.Name == "foo" && !r.Dir {
|
|
f.fooRemoved.Mark()
|
|
return nil
|
|
}
|
|
return fuse.ENOENT
|
|
}
|
|
|
|
func TestCreateWriteRemove(t *testing.T) {
|
|
t.Parallel()
|
|
f := &create3{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{f}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
err = ioutil.WriteFile(mnt.Dir+"/foo", []byte(hi), 0666)
|
|
if err != nil {
|
|
t.Fatalf("create3 WriteFile: %v", err)
|
|
}
|
|
if got := string(f.f.RecordedWriteData()); got != hi {
|
|
t.Fatalf("create3 write = %q, want %q", got, hi)
|
|
}
|
|
|
|
err = os.Remove(mnt.Dir + "/foo")
|
|
if err != nil {
|
|
t.Fatalf("Remove: %v", err)
|
|
}
|
|
err = os.Remove(mnt.Dir + "/foo")
|
|
if err == nil {
|
|
t.Fatalf("second Remove = nil; want some error")
|
|
}
|
|
}
|
|
|
|
// Test symlink + readlink
|
|
|
|
// is a Node that is a symlink to target
|
|
type symlink1link struct {
|
|
symlink
|
|
target string
|
|
}
|
|
|
|
func (f symlink1link) Readlink(ctx context.Context, req *fuse.ReadlinkRequest) (string, error) {
|
|
return f.target, nil
|
|
}
|
|
|
|
type symlink1 struct {
|
|
fstestutil.Dir
|
|
record.Symlinks
|
|
}
|
|
|
|
func (f *symlink1) Symlink(ctx context.Context, req *fuse.SymlinkRequest) (fs.Node, error) {
|
|
f.Symlinks.Symlink(ctx, req)
|
|
return symlink1link{target: req.Target}, nil
|
|
}
|
|
|
|
func TestSymlink(t *testing.T) {
|
|
t.Parallel()
|
|
f := &symlink1{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{f}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
const target = "/some-target"
|
|
|
|
err = os.Symlink(target, mnt.Dir+"/symlink.file")
|
|
if err != nil {
|
|
t.Fatalf("os.Symlink: %v", err)
|
|
}
|
|
|
|
want := fuse.SymlinkRequest{NewName: "symlink.file", Target: target}
|
|
if g, e := f.RecordedSymlink(), want; g != e {
|
|
t.Errorf("symlink saw %+v, want %+v", g, e)
|
|
}
|
|
|
|
gotName, err := os.Readlink(mnt.Dir + "/symlink.file")
|
|
if err != nil {
|
|
t.Fatalf("os.Readlink: %v", err)
|
|
}
|
|
if gotName != target {
|
|
t.Errorf("os.Readlink = %q; want %q", gotName, target)
|
|
}
|
|
}
|
|
|
|
// Test link
|
|
|
|
type link1 struct {
|
|
fstestutil.Dir
|
|
record.Links
|
|
}
|
|
|
|
func (f *link1) Lookup(ctx context.Context, name string) (fs.Node, error) {
|
|
if name == "old" {
|
|
return fstestutil.File{}, nil
|
|
}
|
|
return nil, fuse.ENOENT
|
|
}
|
|
|
|
func (f *link1) Link(ctx context.Context, r *fuse.LinkRequest, old fs.Node) (fs.Node, error) {
|
|
f.Links.Link(ctx, r, old)
|
|
return fstestutil.File{}, nil
|
|
}
|
|
|
|
func TestLink(t *testing.T) {
|
|
t.Parallel()
|
|
f := &link1{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{f}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
err = os.Link(mnt.Dir+"/old", mnt.Dir+"/new")
|
|
if err != nil {
|
|
t.Fatalf("Link: %v", err)
|
|
}
|
|
|
|
got := f.RecordedLink()
|
|
want := fuse.LinkRequest{
|
|
NewName: "new",
|
|
// unpredictable
|
|
OldNode: got.OldNode,
|
|
}
|
|
if g, e := got, want; g != e {
|
|
t.Fatalf("link saw %+v, want %+v", g, e)
|
|
}
|
|
}
|
|
|
|
// Test Rename
|
|
|
|
type rename1 struct {
|
|
fstestutil.Dir
|
|
renamed record.Counter
|
|
}
|
|
|
|
func (f *rename1) Lookup(ctx context.Context, name string) (fs.Node, error) {
|
|
if name == "old" {
|
|
return fstestutil.File{}, nil
|
|
}
|
|
return nil, fuse.ENOENT
|
|
}
|
|
|
|
func (f *rename1) Rename(ctx context.Context, r *fuse.RenameRequest, newDir fs.Node) error {
|
|
if r.OldName == "old" && r.NewName == "new" && newDir == f {
|
|
f.renamed.Inc()
|
|
return nil
|
|
}
|
|
return fuse.EIO
|
|
}
|
|
|
|
func TestRename(t *testing.T) {
|
|
t.Parallel()
|
|
f := &rename1{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{f}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
err = os.Rename(mnt.Dir+"/old", mnt.Dir+"/new")
|
|
if err != nil {
|
|
t.Fatalf("Rename: %v", err)
|
|
}
|
|
if g, e := f.renamed.Count(), uint32(1); g != e {
|
|
t.Fatalf("expected rename didn't happen: %d != %d", g, e)
|
|
}
|
|
err = os.Rename(mnt.Dir+"/old2", mnt.Dir+"/new2")
|
|
if err == nil {
|
|
t.Fatal("expected error on second Rename; got nil")
|
|
}
|
|
}
|
|
|
|
// Test mknod
|
|
|
|
type mknod1 struct {
|
|
fstestutil.Dir
|
|
record.Mknods
|
|
}
|
|
|
|
func (f *mknod1) Mknod(ctx context.Context, r *fuse.MknodRequest) (fs.Node, error) {
|
|
f.Mknods.Mknod(ctx, r)
|
|
return fifo{}, nil
|
|
}
|
|
|
|
func TestMknod(t *testing.T) {
|
|
if os.Getuid() != 0 {
|
|
t.Skip("skipping unless root")
|
|
}
|
|
|
|
f := &mknod1{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{f}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
defer syscall.Umask(syscall.Umask(0022))
|
|
err = syscall.Mknod(mnt.Dir+"/node", syscall.S_IFIFO|0660, 123)
|
|
if err != nil {
|
|
t.Fatalf("mknod: %v", err)
|
|
}
|
|
|
|
want := fuse.MknodRequest{
|
|
Name: "node",
|
|
Mode: os.FileMode(os.ModeNamedPipe | 0640),
|
|
Rdev: uint32(123),
|
|
}
|
|
if runtime.GOOS == "linux" {
|
|
// Linux fuse doesn't echo back the rdev if the node
|
|
// isn't a device (we're using a FIFO here, as that
|
|
// bit is portable.)
|
|
want.Rdev = 0
|
|
}
|
|
if mnt.Conn.Protocol().HasUmask() {
|
|
want.Umask = 0022
|
|
}
|
|
if runtime.GOOS == "darwin" {
|
|
// https://github.com/osxfuse/osxfuse/issues/225
|
|
want.Umask = 0
|
|
}
|
|
if g, e := f.RecordedMknod(), want; g != e {
|
|
t.Fatalf("mknod saw %+v, want %+v", g, e)
|
|
}
|
|
}
|
|
|
|
// Test Read served with DataHandle.
|
|
|
|
type dataHandleTest struct {
|
|
fstestutil.File
|
|
}
|
|
|
|
func (dataHandleTest) Attr(ctx context.Context, a *fuse.Attr) error {
|
|
a.Mode = 0666
|
|
a.Size = uint64(len(hi))
|
|
return nil
|
|
}
|
|
|
|
func (dataHandleTest) Open(ctx context.Context, req *fuse.OpenRequest, resp *fuse.OpenResponse) (fs.Handle, error) {
|
|
return fs.DataHandle([]byte(hi)), nil
|
|
}
|
|
|
|
func TestDataHandle(t *testing.T) {
|
|
t.Parallel()
|
|
f := &dataHandleTest{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": f}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
data, err := ioutil.ReadFile(mnt.Dir + "/child")
|
|
if err != nil {
|
|
t.Errorf("readAll: %v", err)
|
|
return
|
|
}
|
|
if string(data) != hi {
|
|
t.Errorf("readAll = %q, want %q", data, hi)
|
|
}
|
|
}
|
|
|
|
// Test interrupt
|
|
|
|
type interrupt struct {
|
|
fstestutil.File
|
|
|
|
// strobes to signal we have a read hanging
|
|
hanging chan struct{}
|
|
}
|
|
|
|
func (interrupt) Attr(ctx context.Context, a *fuse.Attr) error {
|
|
a.Mode = 0666
|
|
a.Size = 1
|
|
return nil
|
|
}
|
|
|
|
func (it *interrupt) Read(ctx context.Context, req *fuse.ReadRequest, resp *fuse.ReadResponse) error {
|
|
select {
|
|
case it.hanging <- struct{}{}:
|
|
default:
|
|
}
|
|
<-ctx.Done()
|
|
return ctx.Err()
|
|
}
|
|
|
|
func helperInterrupt() {
|
|
log.SetPrefix("interrupt child: ")
|
|
log.SetFlags(0)
|
|
|
|
log.Printf("starting...")
|
|
|
|
f, err := os.Open("child")
|
|
if err != nil {
|
|
log.Fatalf("cannot open file: %v", err)
|
|
}
|
|
defer f.Close()
|
|
|
|
log.Printf("reading...")
|
|
buf := make([]byte, 4096)
|
|
n, err := syscall.Read(int(f.Fd()), buf)
|
|
switch err {
|
|
case nil:
|
|
log.Fatalf("read: expected error, got data: %q", buf[:n])
|
|
case syscall.EINTR:
|
|
log.Printf("read: saw EINTR, all good")
|
|
default:
|
|
log.Fatalf("read: wrong error: %v", err)
|
|
}
|
|
|
|
log.Printf("exiting...")
|
|
}
|
|
|
|
func init() {
|
|
childHelpers["interrupt"] = helperInterrupt
|
|
}
|
|
|
|
func TestInterrupt(t *testing.T) {
|
|
t.Parallel()
|
|
f := &interrupt{}
|
|
f.hanging = make(chan struct{}, 1)
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": f}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
// start a subprocess that can hang until signaled
|
|
child, err := childCmd("interrupt")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
child.Dir = mnt.Dir
|
|
|
|
if err := child.Start(); err != nil {
|
|
t.Errorf("cannot start child: %v", err)
|
|
return
|
|
}
|
|
|
|
// try to clean up if child is still alive when returning
|
|
defer child.Process.Kill()
|
|
|
|
// wait till we're sure it's hanging in read
|
|
<-f.hanging
|
|
|
|
// err = child.Process.Signal(os.Interrupt)
|
|
var sig os.Signal = syscall.SIGIO
|
|
if runtime.GOOS == "darwin" {
|
|
// I can't get OSXFUSE 3.2.0 to trigger EINTR return from
|
|
// read(2), at least in a Go application. Works on Linux. So,
|
|
// on OS X, we just check that the signal at least kills the
|
|
// child, aborting the read, so operations on hanging FUSE
|
|
// filesystems can be aborted.
|
|
sig = os.Interrupt
|
|
}
|
|
|
|
err = child.Process.Signal(sig)
|
|
if err != nil {
|
|
t.Errorf("cannot interrupt child: %v", err)
|
|
return
|
|
}
|
|
|
|
p, err := child.Process.Wait()
|
|
if err != nil {
|
|
t.Errorf("child failed: %v", err)
|
|
return
|
|
}
|
|
switch ws := p.Sys().(type) {
|
|
case syscall.WaitStatus:
|
|
if ws.CoreDump() {
|
|
t.Fatalf("interrupt: didn't expect child to dump core: %v", ws)
|
|
}
|
|
switch runtime.GOOS {
|
|
case "darwin":
|
|
// see comment above about EINTR on OS X
|
|
if ws.Exited() {
|
|
t.Fatalf("interrupt: expected child to die from signal, got exit status: %v", ws.ExitStatus())
|
|
}
|
|
if !ws.Signaled() {
|
|
t.Fatalf("interrupt: expected child to die from signal: %v", ws)
|
|
}
|
|
if got := ws.Signal(); got != sig {
|
|
t.Errorf("interrupt: child failed: signal %d", got)
|
|
}
|
|
default:
|
|
if ws.Signaled() {
|
|
t.Fatalf("interrupt: didn't expect child to exit with a signal: %v", ws)
|
|
}
|
|
if !ws.Exited() {
|
|
t.Fatalf("interrupt: expected child to exit normally: %v", ws)
|
|
}
|
|
if status := ws.ExitStatus(); status != 0 {
|
|
t.Errorf("interrupt: child failed: exit status %d", status)
|
|
}
|
|
}
|
|
default:
|
|
t.Logf("interrupt: this platform has no test coverage")
|
|
}
|
|
}
|
|
|
|
// Test deadline
|
|
|
|
type deadline struct {
|
|
fstestutil.File
|
|
}
|
|
|
|
var _ fs.NodeOpener = (*deadline)(nil)
|
|
|
|
func (it *deadline) Open(ctx context.Context, req *fuse.OpenRequest, resp *fuse.OpenResponse) (fs.Handle, error) {
|
|
<-ctx.Done()
|
|
return nil, ctx.Err()
|
|
}
|
|
|
|
func TestDeadline(t *testing.T) {
|
|
t.Parallel()
|
|
child := &deadline{}
|
|
config := &fs.Config{
|
|
WithContext: func(ctx context.Context, req fuse.Request) context.Context {
|
|
// return a context that has already deadlined
|
|
|
|
// Server.serve will cancel the parent context, which will
|
|
// cancel this one, so discarding cancel here should be
|
|
// safe.
|
|
ctx, _ = context.WithDeadline(ctx, time.Unix(0, 0))
|
|
return ctx
|
|
},
|
|
}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": child}}, config)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
f, err := os.Open(mnt.Dir + "/child")
|
|
if err == nil {
|
|
f.Close()
|
|
}
|
|
|
|
// not caused by signal -> should not get EINTR;
|
|
// context.DeadlineExceeded will be translated into EIO
|
|
if nerr, ok := err.(*os.PathError); !ok || nerr.Err != syscall.EIO {
|
|
t.Fatalf("wrong error from deadline open: %T: %v", err, err)
|
|
}
|
|
}
|
|
|
|
// Test truncate
|
|
|
|
type truncate struct {
|
|
fstestutil.File
|
|
record.Setattrs
|
|
}
|
|
|
|
func testTruncate(t *testing.T, toSize int64) {
|
|
t.Parallel()
|
|
f := &truncate{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": f}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
err = os.Truncate(mnt.Dir+"/child", toSize)
|
|
if err != nil {
|
|
t.Fatalf("Truncate: %v", err)
|
|
}
|
|
gotr := f.RecordedSetattr()
|
|
if gotr == (fuse.SetattrRequest{}) {
|
|
t.Fatalf("no recorded SetattrRequest")
|
|
}
|
|
if g, e := gotr.Size, uint64(toSize); g != e {
|
|
t.Errorf("got Size = %q; want %q", g, e)
|
|
}
|
|
if g, e := gotr.Valid&^fuse.SetattrLockOwner, fuse.SetattrSize; g != e {
|
|
t.Errorf("got Valid = %q; want %q", g, e)
|
|
}
|
|
t.Logf("Got request: %#v", gotr)
|
|
}
|
|
|
|
func TestTruncate42(t *testing.T) {
|
|
testTruncate(t, 42)
|
|
}
|
|
|
|
func TestTruncate0(t *testing.T) {
|
|
testTruncate(t, 0)
|
|
}
|
|
|
|
// Test ftruncate
|
|
|
|
type ftruncate struct {
|
|
fstestutil.File
|
|
record.Setattrs
|
|
}
|
|
|
|
func testFtruncate(t *testing.T, toSize int64) {
|
|
t.Parallel()
|
|
f := &ftruncate{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": f}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
{
|
|
fil, err := os.OpenFile(mnt.Dir+"/child", os.O_WRONLY, 0666)
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
defer fil.Close()
|
|
|
|
err = fil.Truncate(toSize)
|
|
if err != nil {
|
|
t.Fatalf("Ftruncate: %v", err)
|
|
}
|
|
}
|
|
gotr := f.RecordedSetattr()
|
|
if gotr == (fuse.SetattrRequest{}) {
|
|
t.Fatalf("no recorded SetattrRequest")
|
|
}
|
|
if g, e := gotr.Size, uint64(toSize); g != e {
|
|
t.Errorf("got Size = %q; want %q", g, e)
|
|
}
|
|
if g, e := gotr.Valid&^fuse.SetattrLockOwner, fuse.SetattrHandle|fuse.SetattrSize; g != e {
|
|
t.Errorf("got Valid = %q; want %q", g, e)
|
|
}
|
|
t.Logf("Got request: %#v", gotr)
|
|
}
|
|
|
|
func TestFtruncate42(t *testing.T) {
|
|
testFtruncate(t, 42)
|
|
}
|
|
|
|
func TestFtruncate0(t *testing.T) {
|
|
testFtruncate(t, 0)
|
|
}
|
|
|
|
// Test opening existing file truncates
|
|
|
|
type truncateWithOpen struct {
|
|
fstestutil.File
|
|
record.Setattrs
|
|
}
|
|
|
|
func TestTruncateWithOpen(t *testing.T) {
|
|
t.Parallel()
|
|
f := &truncateWithOpen{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": f}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
fil, err := os.OpenFile(mnt.Dir+"/child", os.O_WRONLY|os.O_TRUNC, 0666)
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
fil.Close()
|
|
|
|
gotr := f.RecordedSetattr()
|
|
if gotr == (fuse.SetattrRequest{}) {
|
|
t.Fatalf("no recorded SetattrRequest")
|
|
}
|
|
if g, e := gotr.Size, uint64(0); g != e {
|
|
t.Errorf("got Size = %q; want %q", g, e)
|
|
}
|
|
// osxfuse sets SetattrHandle here, linux does not
|
|
if g, e := gotr.Valid&^(fuse.SetattrLockOwner|fuse.SetattrHandle), fuse.SetattrSize; g != e {
|
|
t.Errorf("got Valid = %q; want %q", g, e)
|
|
}
|
|
t.Logf("Got request: %#v", gotr)
|
|
}
|
|
|
|
// Test readdir calling ReadDirAll
|
|
|
|
type readDirAll struct {
|
|
fstestutil.Dir
|
|
}
|
|
|
|
func (d *readDirAll) ReadDirAll(ctx context.Context) ([]fuse.Dirent, error) {
|
|
return []fuse.Dirent{
|
|
{Name: "one", Inode: 11, Type: fuse.DT_Dir},
|
|
{Name: "three", Inode: 13},
|
|
{Name: "two", Inode: 12, Type: fuse.DT_File},
|
|
}, nil
|
|
}
|
|
|
|
func TestReadDirAll(t *testing.T) {
|
|
t.Parallel()
|
|
f := &readDirAll{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{f}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
fil, err := os.Open(mnt.Dir)
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
defer fil.Close()
|
|
|
|
// go Readdir is just Readdirnames + Lstat, there's no point in
|
|
// testing that here; we have no consumption API for the real
|
|
// dirent data
|
|
names, err := fil.Readdirnames(100)
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
|
|
t.Logf("Got readdir: %q", names)
|
|
|
|
if len(names) != 3 ||
|
|
names[0] != "one" ||
|
|
names[1] != "three" ||
|
|
names[2] != "two" {
|
|
t.Errorf(`expected 3 entries of "one", "three", "two", got: %q`, names)
|
|
return
|
|
}
|
|
}
|
|
|
|
type readDirAllBad struct {
|
|
fstestutil.Dir
|
|
}
|
|
|
|
func (d *readDirAllBad) ReadDirAll(ctx context.Context) ([]fuse.Dirent, error) {
|
|
r := []fuse.Dirent{
|
|
{Name: "one", Inode: 11, Type: fuse.DT_Dir},
|
|
{Name: "three", Inode: 13},
|
|
{Name: "two", Inode: 12, Type: fuse.DT_File},
|
|
}
|
|
// pick a really distinct error, to identify it later
|
|
return r, fuse.Errno(syscall.ENAMETOOLONG)
|
|
}
|
|
|
|
func TestReadDirAllBad(t *testing.T) {
|
|
t.Parallel()
|
|
f := &readDirAllBad{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{f}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
fil, err := os.Open(mnt.Dir)
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
defer fil.Close()
|
|
|
|
var names []string
|
|
for {
|
|
n, err := fil.Readdirnames(1)
|
|
if err != nil {
|
|
if nerr, ok := err.(*os.SyscallError); !ok || nerr.Err != syscall.ENAMETOOLONG {
|
|
t.Fatalf("wrong error: %v", err)
|
|
}
|
|
break
|
|
}
|
|
names = append(names, n...)
|
|
}
|
|
|
|
t.Logf("Got readdir: %q", names)
|
|
|
|
// TODO could serve partial results from ReadDirAll but the
|
|
// shandle.readData mechanism makes that awkward.
|
|
if len(names) != 0 {
|
|
t.Errorf(`expected 0 entries, got: %q`, names)
|
|
return
|
|
}
|
|
}
|
|
|
|
// Test readdir without any ReadDir methods implemented.
|
|
|
|
type readDirNotImplemented struct {
|
|
fstestutil.Dir
|
|
}
|
|
|
|
func TestReadDirNotImplemented(t *testing.T) {
|
|
t.Parallel()
|
|
f := &readDirNotImplemented{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{f}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
fil, err := os.Open(mnt.Dir)
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
defer fil.Close()
|
|
|
|
// go Readdir is just Readdirnames + Lstat, there's no point in
|
|
// testing that here; we have no consumption API for the real
|
|
// dirent data
|
|
names, err := fil.Readdirnames(100)
|
|
if len(names) > 0 || err != io.EOF {
|
|
t.Fatalf("expected EOF got names=%v err=%v", names, err)
|
|
}
|
|
}
|
|
|
|
type readDirAllRewind struct {
|
|
fstestutil.Dir
|
|
entries atomic.Value
|
|
}
|
|
|
|
func (d *readDirAllRewind) ReadDirAll(ctx context.Context) ([]fuse.Dirent, error) {
|
|
entries := d.entries.Load().([]fuse.Dirent)
|
|
return entries, nil
|
|
}
|
|
|
|
func TestReadDirAllRewind(t *testing.T) {
|
|
t.Parallel()
|
|
f := &readDirAllRewind{}
|
|
f.entries.Store([]fuse.Dirent{
|
|
{Name: "one", Inode: 11, Type: fuse.DT_Dir},
|
|
})
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{f}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
fil, err := os.Open(mnt.Dir)
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
defer fil.Close()
|
|
|
|
{
|
|
names, err := fil.Readdirnames(100)
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
t.Logf("Got readdir: %q", names)
|
|
if len(names) != 1 ||
|
|
names[0] != "one" {
|
|
t.Errorf(`expected entry of "one", got: %q`, names)
|
|
return
|
|
}
|
|
}
|
|
|
|
f.entries.Store([]fuse.Dirent{
|
|
{Name: "two", Inode: 12, Type: fuse.DT_File},
|
|
{Name: "one", Inode: 11, Type: fuse.DT_Dir},
|
|
})
|
|
if _, err := fil.Seek(0, os.SEEK_SET); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
{
|
|
names, err := fil.Readdirnames(100)
|
|
if err != nil {
|
|
t.Error(err)
|
|
return
|
|
}
|
|
t.Logf("Got readdir: %q", names)
|
|
if len(names) != 2 ||
|
|
names[0] != "two" ||
|
|
names[1] != "one" {
|
|
t.Errorf(`expected 2 entries of "two", "one", got: %q`, names)
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
// Test Chmod.
|
|
|
|
type chmod struct {
|
|
fstestutil.File
|
|
record.Setattrs
|
|
}
|
|
|
|
func (f *chmod) Setattr(ctx context.Context, req *fuse.SetattrRequest, resp *fuse.SetattrResponse) error {
|
|
if !req.Valid.Mode() {
|
|
log.Printf("setattr not a chmod: %v", req.Valid)
|
|
return fuse.EIO
|
|
}
|
|
f.Setattrs.Setattr(ctx, req, resp)
|
|
return nil
|
|
}
|
|
|
|
func TestChmod(t *testing.T) {
|
|
t.Parallel()
|
|
f := &chmod{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": f}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
err = os.Chmod(mnt.Dir+"/child", 0764)
|
|
if err != nil {
|
|
t.Errorf("chmod: %v", err)
|
|
return
|
|
}
|
|
got := f.RecordedSetattr()
|
|
if g, e := got.Mode, os.FileMode(0764); g != e {
|
|
t.Errorf("wrong mode: %v != %v", g, e)
|
|
}
|
|
}
|
|
|
|
// Test open
|
|
|
|
type open struct {
|
|
fstestutil.File
|
|
record.Opens
|
|
}
|
|
|
|
func (f *open) Open(ctx context.Context, req *fuse.OpenRequest, resp *fuse.OpenResponse) (fs.Handle, error) {
|
|
f.Opens.Open(ctx, req, resp)
|
|
// pick a really distinct error, to identify it later
|
|
return nil, fuse.Errno(syscall.ENAMETOOLONG)
|
|
}
|
|
|
|
func TestOpen(t *testing.T) {
|
|
t.Parallel()
|
|
f := &open{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": f}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
// node: mode only matters with O_CREATE
|
|
fil, err := os.OpenFile(mnt.Dir+"/child", os.O_WRONLY|os.O_APPEND, 0)
|
|
if err == nil {
|
|
t.Error("Open err == nil, expected ENAMETOOLONG")
|
|
fil.Close()
|
|
return
|
|
}
|
|
|
|
switch err2 := err.(type) {
|
|
case *os.PathError:
|
|
if err2.Err == syscall.ENAMETOOLONG {
|
|
break
|
|
}
|
|
t.Errorf("unexpected inner error: %#v", err2)
|
|
default:
|
|
t.Errorf("unexpected error: %v", err)
|
|
}
|
|
|
|
want := fuse.OpenRequest{Dir: false, Flags: fuse.OpenWriteOnly | fuse.OpenAppend}
|
|
if runtime.GOOS == "darwin" {
|
|
// osxfuse does not let O_APPEND through at all
|
|
//
|
|
// https://code.google.com/p/macfuse/issues/detail?id=233
|
|
// https://code.google.com/p/macfuse/issues/detail?id=132
|
|
// https://code.google.com/p/macfuse/issues/detail?id=133
|
|
want.Flags &^= fuse.OpenAppend
|
|
}
|
|
got := f.RecordedOpen()
|
|
|
|
if runtime.GOOS == "linux" {
|
|
// Linux <3.7 accidentally leaks O_CLOEXEC through to FUSE;
|
|
// avoid spurious test failures
|
|
got.Flags &^= fuse.OpenFlags(syscall.O_CLOEXEC)
|
|
}
|
|
|
|
if g, e := got, want; g != e {
|
|
t.Errorf("open saw %v, want %v", g, e)
|
|
return
|
|
}
|
|
}
|
|
|
|
type openNonSeekable struct {
|
|
fstestutil.File
|
|
}
|
|
|
|
func (f *openNonSeekable) Open(ctx context.Context, req *fuse.OpenRequest, resp *fuse.OpenResponse) (fs.Handle, error) {
|
|
resp.Flags |= fuse.OpenNonSeekable
|
|
return f, nil
|
|
}
|
|
|
|
func TestOpenNonSeekable(t *testing.T) {
|
|
if runtime.GOOS == "darwin" {
|
|
t.Skip("OSXFUSE shares one read and one write handle for all clients, does not support open modes")
|
|
}
|
|
|
|
t.Parallel()
|
|
f := &openNonSeekable{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": f}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
if !mnt.Conn.Protocol().HasOpenNonSeekable() {
|
|
t.Skip("Old FUSE protocol")
|
|
}
|
|
|
|
fil, err := os.Open(mnt.Dir + "/child")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer fil.Close()
|
|
|
|
_, err = fil.Seek(0, os.SEEK_SET)
|
|
if nerr, ok := err.(*os.PathError); !ok || nerr.Err != syscall.ESPIPE {
|
|
t.Fatalf("wrong error: %v", err)
|
|
}
|
|
}
|
|
|
|
// Test Fsync on a dir
|
|
|
|
type fsyncDir struct {
|
|
fstestutil.Dir
|
|
record.Fsyncs
|
|
}
|
|
|
|
func TestFsyncDir(t *testing.T) {
|
|
t.Parallel()
|
|
f := &fsyncDir{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{f}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
fil, err := os.Open(mnt.Dir)
|
|
if err != nil {
|
|
t.Errorf("fsyncDir open: %v", err)
|
|
return
|
|
}
|
|
defer fil.Close()
|
|
err = fil.Sync()
|
|
if err != nil {
|
|
t.Errorf("fsyncDir sync: %v", err)
|
|
return
|
|
}
|
|
|
|
got := f.RecordedFsync()
|
|
want := fuse.FsyncRequest{
|
|
Flags: 0,
|
|
Dir: true,
|
|
// unpredictable
|
|
Handle: got.Handle,
|
|
}
|
|
if runtime.GOOS == "darwin" {
|
|
// TODO document the meaning of these flags, figure out why
|
|
// they differ
|
|
want.Flags = 1
|
|
}
|
|
if g, e := got, want; g != e {
|
|
t.Fatalf("fsyncDir saw %+v, want %+v", g, e)
|
|
}
|
|
}
|
|
|
|
// Test Getxattr
|
|
|
|
type getxattr struct {
|
|
fstestutil.File
|
|
record.Getxattrs
|
|
}
|
|
|
|
func (f *getxattr) Getxattr(ctx context.Context, req *fuse.GetxattrRequest, resp *fuse.GetxattrResponse) error {
|
|
f.Getxattrs.Getxattr(ctx, req, resp)
|
|
resp.Xattr = []byte("hello, world")
|
|
return nil
|
|
}
|
|
|
|
func TestGetxattr(t *testing.T) {
|
|
t.Parallel()
|
|
f := &getxattr{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": f}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
buf := make([]byte, 8192)
|
|
n, err := syscallx.Getxattr(mnt.Dir+"/child", "not-there", buf)
|
|
if err != nil {
|
|
t.Errorf("unexpected error: %v", err)
|
|
return
|
|
}
|
|
buf = buf[:n]
|
|
if g, e := string(buf), "hello, world"; g != e {
|
|
t.Errorf("wrong getxattr content: %#v != %#v", g, e)
|
|
}
|
|
seen := f.RecordedGetxattr()
|
|
if g, e := seen.Name, "not-there"; g != e {
|
|
t.Errorf("wrong getxattr name: %#v != %#v", g, e)
|
|
}
|
|
}
|
|
|
|
// Test Getxattr that has no space to return value
|
|
|
|
type getxattrTooSmall struct {
|
|
fstestutil.File
|
|
}
|
|
|
|
func (f *getxattrTooSmall) Getxattr(ctx context.Context, req *fuse.GetxattrRequest, resp *fuse.GetxattrResponse) error {
|
|
resp.Xattr = []byte("hello, world")
|
|
return nil
|
|
}
|
|
|
|
func TestGetxattrTooSmall(t *testing.T) {
|
|
t.Parallel()
|
|
f := &getxattrTooSmall{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": f}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
buf := make([]byte, 3)
|
|
_, err = syscallx.Getxattr(mnt.Dir+"/child", "whatever", buf)
|
|
if err == nil {
|
|
t.Error("Getxattr = nil; want some error")
|
|
}
|
|
if err != syscall.ERANGE {
|
|
t.Errorf("unexpected error: %v", err)
|
|
return
|
|
}
|
|
}
|
|
|
|
// Test Getxattr used to probe result size
|
|
|
|
type getxattrSize struct {
|
|
fstestutil.File
|
|
}
|
|
|
|
func (f *getxattrSize) Getxattr(ctx context.Context, req *fuse.GetxattrRequest, resp *fuse.GetxattrResponse) error {
|
|
resp.Xattr = []byte("hello, world")
|
|
return nil
|
|
}
|
|
|
|
func TestGetxattrSize(t *testing.T) {
|
|
t.Parallel()
|
|
f := &getxattrSize{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": f}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
n, err := syscallx.Getxattr(mnt.Dir+"/child", "whatever", nil)
|
|
if err != nil {
|
|
t.Errorf("Getxattr unexpected error: %v", err)
|
|
return
|
|
}
|
|
if g, e := n, len("hello, world"); g != e {
|
|
t.Errorf("Getxattr incorrect size: %d != %d", g, e)
|
|
}
|
|
}
|
|
|
|
// Test Listxattr
|
|
|
|
type listxattr struct {
|
|
fstestutil.File
|
|
record.Listxattrs
|
|
}
|
|
|
|
func (f *listxattr) Listxattr(ctx context.Context, req *fuse.ListxattrRequest, resp *fuse.ListxattrResponse) error {
|
|
f.Listxattrs.Listxattr(ctx, req, resp)
|
|
resp.Append("one", "two")
|
|
return nil
|
|
}
|
|
|
|
func TestListxattr(t *testing.T) {
|
|
t.Parallel()
|
|
f := &listxattr{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": f}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
buf := make([]byte, 8192)
|
|
n, err := syscallx.Listxattr(mnt.Dir+"/child", buf)
|
|
if err != nil {
|
|
t.Errorf("unexpected error: %v", err)
|
|
return
|
|
}
|
|
buf = buf[:n]
|
|
if g, e := string(buf), "one\x00two\x00"; g != e {
|
|
t.Errorf("wrong listxattr content: %#v != %#v", g, e)
|
|
}
|
|
|
|
want := fuse.ListxattrRequest{
|
|
Size: 8192,
|
|
}
|
|
if g, e := f.RecordedListxattr(), want; g != e {
|
|
t.Fatalf("listxattr saw %+v, want %+v", g, e)
|
|
}
|
|
}
|
|
|
|
// Test Listxattr that has no space to return value
|
|
|
|
type listxattrTooSmall struct {
|
|
fstestutil.File
|
|
}
|
|
|
|
func (f *listxattrTooSmall) Listxattr(ctx context.Context, req *fuse.ListxattrRequest, resp *fuse.ListxattrResponse) error {
|
|
resp.Xattr = []byte("one\x00two\x00")
|
|
return nil
|
|
}
|
|
|
|
func TestListxattrTooSmall(t *testing.T) {
|
|
t.Parallel()
|
|
f := &listxattrTooSmall{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": f}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
buf := make([]byte, 3)
|
|
_, err = syscallx.Listxattr(mnt.Dir+"/child", buf)
|
|
if err == nil {
|
|
t.Error("Listxattr = nil; want some error")
|
|
}
|
|
if err != syscall.ERANGE {
|
|
t.Errorf("unexpected error: %v", err)
|
|
return
|
|
}
|
|
}
|
|
|
|
// Test Listxattr used to probe result size
|
|
|
|
type listxattrSize struct {
|
|
fstestutil.File
|
|
}
|
|
|
|
func (f *listxattrSize) Listxattr(ctx context.Context, req *fuse.ListxattrRequest, resp *fuse.ListxattrResponse) error {
|
|
resp.Xattr = []byte("one\x00two\x00")
|
|
return nil
|
|
}
|
|
|
|
func TestListxattrSize(t *testing.T) {
|
|
t.Parallel()
|
|
f := &listxattrSize{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": f}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
n, err := syscallx.Listxattr(mnt.Dir+"/child", nil)
|
|
if err != nil {
|
|
t.Errorf("Listxattr unexpected error: %v", err)
|
|
return
|
|
}
|
|
if g, e := n, len("one\x00two\x00"); g != e {
|
|
t.Errorf("Getxattr incorrect size: %d != %d", g, e)
|
|
}
|
|
}
|
|
|
|
// Test Setxattr
|
|
|
|
type setxattr struct {
|
|
fstestutil.File
|
|
record.Setxattrs
|
|
}
|
|
|
|
func testSetxattr(t *testing.T, size int) {
|
|
const linux_XATTR_NAME_MAX = 64 * 1024
|
|
if size > linux_XATTR_NAME_MAX && runtime.GOOS == "linux" {
|
|
t.Skip("large xattrs are not supported by linux")
|
|
}
|
|
|
|
t.Parallel()
|
|
f := &setxattr{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": f}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
const g = "hello, world"
|
|
greeting := strings.Repeat(g, size/len(g)+1)[:size]
|
|
err = syscallx.Setxattr(mnt.Dir+"/child", "greeting", []byte(greeting), 0)
|
|
if err != nil {
|
|
t.Errorf("unexpected error: %v", err)
|
|
return
|
|
}
|
|
|
|
// fuse.SetxattrRequest contains a byte slice and thus cannot be
|
|
// directly compared
|
|
got := f.RecordedSetxattr()
|
|
|
|
if g, e := got.Name, "greeting"; g != e {
|
|
t.Errorf("Setxattr incorrect name: %q != %q", g, e)
|
|
}
|
|
|
|
if g, e := got.Flags, uint32(0); g != e {
|
|
t.Errorf("Setxattr incorrect flags: %d != %d", g, e)
|
|
}
|
|
|
|
if g, e := string(got.Xattr), greeting; g != e {
|
|
t.Errorf("Setxattr incorrect data: %q != %q", g, e)
|
|
}
|
|
}
|
|
|
|
func TestSetxattr(t *testing.T) {
|
|
testSetxattr(t, 20)
|
|
}
|
|
|
|
func TestSetxattr64kB(t *testing.T) {
|
|
testSetxattr(t, 64*1024)
|
|
}
|
|
|
|
func TestSetxattr16MB(t *testing.T) {
|
|
testSetxattr(t, 16*1024*1024)
|
|
}
|
|
|
|
// Test Removexattr
|
|
|
|
type removexattr struct {
|
|
fstestutil.File
|
|
record.Removexattrs
|
|
}
|
|
|
|
func TestRemovexattr(t *testing.T) {
|
|
t.Parallel()
|
|
f := &removexattr{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": f}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
err = syscallx.Removexattr(mnt.Dir+"/child", "greeting")
|
|
if err != nil {
|
|
t.Errorf("unexpected error: %v", err)
|
|
return
|
|
}
|
|
|
|
want := fuse.RemovexattrRequest{Name: "greeting"}
|
|
if g, e := f.RecordedRemovexattr(), want; g != e {
|
|
t.Errorf("removexattr saw %v, want %v", g, e)
|
|
}
|
|
}
|
|
|
|
// Test default error.
|
|
|
|
type defaultErrno struct {
|
|
fstestutil.Dir
|
|
}
|
|
|
|
func (f defaultErrno) Lookup(ctx context.Context, name string) (fs.Node, error) {
|
|
return nil, errors.New("bork")
|
|
}
|
|
|
|
func TestDefaultErrno(t *testing.T) {
|
|
t.Parallel()
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{defaultErrno{}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
_, err = os.Stat(mnt.Dir + "/trigger")
|
|
if err == nil {
|
|
t.Fatalf("expected error")
|
|
}
|
|
|
|
switch err2 := err.(type) {
|
|
case *os.PathError:
|
|
if err2.Err == syscall.EIO {
|
|
break
|
|
}
|
|
t.Errorf("unexpected inner error: Err=%v %#v", err2.Err, err2)
|
|
default:
|
|
t.Errorf("unexpected error: %v", err)
|
|
}
|
|
}
|
|
|
|
// Test custom error.
|
|
|
|
type customErrNode struct {
|
|
fstestutil.Dir
|
|
}
|
|
|
|
type myCustomError struct {
|
|
fuse.ErrorNumber
|
|
}
|
|
|
|
var _ = fuse.ErrorNumber(myCustomError{})
|
|
|
|
func (myCustomError) Error() string {
|
|
return "bork"
|
|
}
|
|
|
|
func (f customErrNode) Lookup(ctx context.Context, name string) (fs.Node, error) {
|
|
return nil, myCustomError{
|
|
ErrorNumber: fuse.Errno(syscall.ENAMETOOLONG),
|
|
}
|
|
}
|
|
|
|
func TestCustomErrno(t *testing.T) {
|
|
t.Parallel()
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{customErrNode{}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
_, err = os.Stat(mnt.Dir + "/trigger")
|
|
if err == nil {
|
|
t.Fatalf("expected error")
|
|
}
|
|
|
|
switch err2 := err.(type) {
|
|
case *os.PathError:
|
|
if err2.Err == syscall.ENAMETOOLONG {
|
|
break
|
|
}
|
|
t.Errorf("unexpected inner error: %#v", err2)
|
|
default:
|
|
t.Errorf("unexpected error: %v", err)
|
|
}
|
|
}
|
|
|
|
// Test Mmap writing
|
|
|
|
type inMemoryFile struct {
|
|
mu sync.Mutex
|
|
data []byte
|
|
}
|
|
|
|
func (f *inMemoryFile) bytes() []byte {
|
|
f.mu.Lock()
|
|
defer f.mu.Unlock()
|
|
|
|
return f.data
|
|
}
|
|
|
|
func (f *inMemoryFile) Attr(ctx context.Context, a *fuse.Attr) error {
|
|
f.mu.Lock()
|
|
defer f.mu.Unlock()
|
|
|
|
a.Mode = 0666
|
|
a.Size = uint64(len(f.data))
|
|
return nil
|
|
}
|
|
|
|
func (f *inMemoryFile) Read(ctx context.Context, req *fuse.ReadRequest, resp *fuse.ReadResponse) error {
|
|
f.mu.Lock()
|
|
defer f.mu.Unlock()
|
|
|
|
fuseutil.HandleRead(req, resp, f.data)
|
|
return nil
|
|
}
|
|
|
|
func (f *inMemoryFile) Write(ctx context.Context, req *fuse.WriteRequest, resp *fuse.WriteResponse) error {
|
|
f.mu.Lock()
|
|
defer f.mu.Unlock()
|
|
|
|
resp.Size = copy(f.data[req.Offset:], req.Data)
|
|
return nil
|
|
}
|
|
|
|
const mmapSize = 16 * 4096
|
|
|
|
var mmapWrites = map[int]byte{
|
|
10: 'a',
|
|
4096: 'b',
|
|
4097: 'c',
|
|
mmapSize - 4096: 'd',
|
|
mmapSize - 1: 'z',
|
|
}
|
|
|
|
func helperMmap() {
|
|
f, err := os.Create("child")
|
|
if err != nil {
|
|
log.Fatalf("Create: %v", err)
|
|
}
|
|
defer f.Close()
|
|
|
|
data, err := syscall.Mmap(int(f.Fd()), 0, mmapSize, syscall.PROT_READ|syscall.PROT_WRITE, syscall.MAP_SHARED)
|
|
if err != nil {
|
|
log.Fatalf("Mmap: %v", err)
|
|
}
|
|
|
|
for i, b := range mmapWrites {
|
|
data[i] = b
|
|
}
|
|
|
|
if err := syscallx.Msync(data, syscall.MS_SYNC); err != nil {
|
|
log.Fatalf("Msync: %v", err)
|
|
}
|
|
|
|
if err := syscall.Munmap(data); err != nil {
|
|
log.Fatalf("Munmap: %v", err)
|
|
}
|
|
|
|
if err := f.Sync(); err != nil {
|
|
log.Fatalf("Fsync = %v", err)
|
|
}
|
|
|
|
err = f.Close()
|
|
if err != nil {
|
|
log.Fatalf("Close: %v", err)
|
|
}
|
|
}
|
|
|
|
func init() {
|
|
childHelpers["mmap"] = helperMmap
|
|
}
|
|
|
|
type mmap struct {
|
|
inMemoryFile
|
|
// We don't actually care about whether the fsync happened or not;
|
|
// this just lets us force the page cache to send the writes to
|
|
// FUSE, so we can reliably verify they came through.
|
|
record.Fsyncs
|
|
}
|
|
|
|
func TestMmap(t *testing.T) {
|
|
|
|
w := &mmap{}
|
|
w.data = make([]byte, mmapSize)
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": w}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
// Run the mmap-using parts of the test in a subprocess, to avoid
|
|
// an intentional page fault hanging the whole process (because it
|
|
// would need to be served by the same process, and there might
|
|
// not be a thread free to do that). Merely bumping GOMAXPROCS is
|
|
// not enough to prevent the hangs reliably.
|
|
child, err := childCmd("mmap")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
child.Dir = mnt.Dir
|
|
if err := child.Run(); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
got := w.bytes()
|
|
if g, e := len(got), mmapSize; g != e {
|
|
t.Fatalf("bad write length: %d != %d", g, e)
|
|
}
|
|
for i, g := range got {
|
|
// default '\x00' for writes[i] is good here
|
|
if e := mmapWrites[i]; g != e {
|
|
t.Errorf("wrong byte at offset %d: %q != %q", i, g, e)
|
|
}
|
|
}
|
|
}
|
|
|
|
// Test direct Read.
|
|
|
|
type directRead struct {
|
|
fstestutil.File
|
|
}
|
|
|
|
// explicitly not defining Attr and setting Size
|
|
|
|
func (f directRead) Open(ctx context.Context, req *fuse.OpenRequest, resp *fuse.OpenResponse) (fs.Handle, error) {
|
|
// do not allow the kernel to use page cache
|
|
resp.Flags |= fuse.OpenDirectIO
|
|
return f, nil
|
|
}
|
|
|
|
func (directRead) Read(ctx context.Context, req *fuse.ReadRequest, resp *fuse.ReadResponse) error {
|
|
fuseutil.HandleRead(req, resp, []byte(hi))
|
|
return nil
|
|
}
|
|
|
|
func TestDirectRead(t *testing.T) {
|
|
t.Parallel()
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": directRead{}}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
testReadAll(t, mnt.Dir+"/child")
|
|
}
|
|
|
|
// Test direct Write.
|
|
|
|
type directWrite struct {
|
|
fstestutil.File
|
|
record.Writes
|
|
}
|
|
|
|
// explicitly not defining Attr / Setattr and managing Size
|
|
|
|
func (f *directWrite) Open(ctx context.Context, req *fuse.OpenRequest, resp *fuse.OpenResponse) (fs.Handle, error) {
|
|
// do not allow the kernel to use page cache
|
|
resp.Flags |= fuse.OpenDirectIO
|
|
return f, nil
|
|
}
|
|
|
|
func TestDirectWrite(t *testing.T) {
|
|
t.Parallel()
|
|
w := &directWrite{}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": w}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
f, err := os.OpenFile(mnt.Dir+"/child", os.O_RDWR, 0666)
|
|
if err != nil {
|
|
t.Fatalf("Create: %v", err)
|
|
}
|
|
defer f.Close()
|
|
n, err := f.Write([]byte(hi))
|
|
if err != nil {
|
|
t.Fatalf("Write: %v", err)
|
|
}
|
|
if n != len(hi) {
|
|
t.Fatalf("short write; n=%d; hi=%d", n, len(hi))
|
|
}
|
|
|
|
err = f.Close()
|
|
if err != nil {
|
|
t.Fatalf("Close: %v", err)
|
|
}
|
|
|
|
if got := string(w.RecordedWriteData()); got != hi {
|
|
t.Errorf("write = %q, want %q", got, hi)
|
|
}
|
|
}
|
|
|
|
// Test Attr
|
|
|
|
// attrUnlinked is a file that is unlinked (Nlink==0).
|
|
type attrUnlinked struct {
|
|
fstestutil.File
|
|
}
|
|
|
|
var _ fs.Node = attrUnlinked{}
|
|
|
|
func (f attrUnlinked) Attr(ctx context.Context, a *fuse.Attr) error {
|
|
if err := f.File.Attr(ctx, a); err != nil {
|
|
return err
|
|
}
|
|
a.Nlink = 0
|
|
return nil
|
|
}
|
|
|
|
func TestAttrUnlinked(t *testing.T) {
|
|
t.Parallel()
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": attrUnlinked{}}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
fi, err := os.Stat(mnt.Dir + "/child")
|
|
if err != nil {
|
|
t.Fatalf("Stat failed with %v", err)
|
|
}
|
|
switch stat := fi.Sys().(type) {
|
|
case *syscall.Stat_t:
|
|
if stat.Nlink != 0 {
|
|
t.Errorf("wrong link count: %v", stat.Nlink)
|
|
}
|
|
}
|
|
}
|
|
|
|
// Test behavior when Attr method fails
|
|
|
|
type attrBad struct {
|
|
}
|
|
|
|
var _ fs.Node = attrBad{}
|
|
|
|
func (attrBad) Attr(ctx context.Context, attr *fuse.Attr) error {
|
|
return fuse.Errno(syscall.ENAMETOOLONG)
|
|
}
|
|
|
|
func TestAttrBad(t *testing.T) {
|
|
t.Parallel()
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": attrBad{}}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
_, err = os.Stat(mnt.Dir + "/child")
|
|
if nerr, ok := err.(*os.PathError); !ok || nerr.Err != syscall.ENAMETOOLONG {
|
|
t.Fatalf("wrong error: %v", err)
|
|
}
|
|
}
|
|
|
|
// Test kernel cache invalidation
|
|
|
|
type invalidateAttr struct {
|
|
fs.NodeRef
|
|
t testing.TB
|
|
attr record.Counter
|
|
}
|
|
|
|
var _ fs.Node = (*invalidateAttr)(nil)
|
|
|
|
func (i *invalidateAttr) Attr(ctx context.Context, a *fuse.Attr) error {
|
|
i.attr.Inc()
|
|
i.t.Logf("Attr called, #%d", i.attr.Count())
|
|
a.Mode = 0600
|
|
return nil
|
|
}
|
|
|
|
func TestInvalidateNodeAttr(t *testing.T) {
|
|
// This test may see false positive failures when run under
|
|
// extreme memory pressure.
|
|
t.Parallel()
|
|
a := &invalidateAttr{
|
|
t: t,
|
|
}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": a}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
if !mnt.Conn.Protocol().HasInvalidate() {
|
|
t.Skip("Old FUSE protocol")
|
|
}
|
|
|
|
for i := 0; i < 10; i++ {
|
|
if _, err := os.Stat(mnt.Dir + "/child"); err != nil {
|
|
t.Fatalf("stat error: %v", err)
|
|
}
|
|
}
|
|
// With OSXFUSE 3.0.4, we seem to see typically two Attr calls by
|
|
// this point; something not populating the in-kernel cache
|
|
// properly? Cope with it; we care more about seeing a new Attr
|
|
// call after the invalidation.
|
|
//
|
|
// We still enforce a max number here so that we know that the
|
|
// invalidate actually did something, and it's not just that every
|
|
// Stat results in an Attr.
|
|
before := a.attr.Count()
|
|
if before == 0 {
|
|
t.Error("no Attr call seen")
|
|
}
|
|
if g, e := before, uint32(3); g > e {
|
|
t.Errorf("too many Attr calls seen: %d > %d", g, e)
|
|
}
|
|
|
|
t.Logf("invalidating...")
|
|
if err := mnt.Server.InvalidateNodeAttr(a); err != nil {
|
|
t.Fatalf("invalidate error: %v", err)
|
|
}
|
|
|
|
for i := 0; i < 10; i++ {
|
|
if _, err := os.Stat(mnt.Dir + "/child"); err != nil {
|
|
t.Fatalf("stat error: %v", err)
|
|
}
|
|
}
|
|
if g, e := a.attr.Count(), before+1; g != e {
|
|
t.Errorf("wrong Attr call count: %d != %d", g, e)
|
|
}
|
|
}
|
|
|
|
type invalidateData struct {
|
|
fs.NodeRef
|
|
t testing.TB
|
|
attr record.Counter
|
|
read record.Counter
|
|
data atomic.Value
|
|
}
|
|
|
|
const (
|
|
invalidateDataContent1 = "hello, world\n"
|
|
invalidateDataContent2 = "so long!\n"
|
|
)
|
|
|
|
var _ fs.Node = (*invalidateData)(nil)
|
|
|
|
func (i *invalidateData) Attr(ctx context.Context, a *fuse.Attr) error {
|
|
i.attr.Inc()
|
|
i.t.Logf("Attr called, #%d", i.attr.Count())
|
|
a.Mode = 0600
|
|
a.Size = uint64(len(i.data.Load().(string)))
|
|
return nil
|
|
}
|
|
|
|
var _ fs.HandleReader = (*invalidateData)(nil)
|
|
|
|
func (i *invalidateData) Read(ctx context.Context, req *fuse.ReadRequest, resp *fuse.ReadResponse) error {
|
|
i.read.Inc()
|
|
i.t.Logf("Read called, #%d", i.read.Count())
|
|
fuseutil.HandleRead(req, resp, []byte(i.data.Load().(string)))
|
|
return nil
|
|
}
|
|
|
|
func TestInvalidateNodeDataInvalidatesAttr(t *testing.T) {
|
|
// This test may see false positive failures when run under
|
|
// extreme memory pressure.
|
|
t.Parallel()
|
|
a := &invalidateData{
|
|
t: t,
|
|
}
|
|
a.data.Store(invalidateDataContent1)
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": a}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
if !mnt.Conn.Protocol().HasInvalidate() {
|
|
t.Skip("Old FUSE protocol")
|
|
}
|
|
|
|
f, err := os.Open(mnt.Dir + "/child")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer f.Close()
|
|
|
|
attrBefore := a.attr.Count()
|
|
if g, min := attrBefore, uint32(1); g < min {
|
|
t.Errorf("wrong Attr call count: %d < %d", g, min)
|
|
}
|
|
|
|
t.Logf("invalidating...")
|
|
a.data.Store(invalidateDataContent2)
|
|
if err := mnt.Server.InvalidateNodeData(a); err != nil {
|
|
t.Fatalf("invalidate error: %v", err)
|
|
}
|
|
|
|
// on OSXFUSE 3.0.6, the Attr has already triggered here, so don't
|
|
// check the count at this point
|
|
|
|
if _, err := f.Stat(); err != nil {
|
|
t.Errorf("stat error: %v", err)
|
|
}
|
|
if g, prev := a.attr.Count(), attrBefore; g <= prev {
|
|
t.Errorf("did not see Attr call after invalidate: %d <= %d", g, prev)
|
|
}
|
|
}
|
|
|
|
func TestInvalidateNodeDataInvalidatesData(t *testing.T) {
|
|
// This test may see false positive failures when run under
|
|
// extreme memory pressure.
|
|
t.Parallel()
|
|
a := &invalidateData{
|
|
t: t,
|
|
}
|
|
a.data.Store(invalidateDataContent1)
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": a}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
if !mnt.Conn.Protocol().HasInvalidate() {
|
|
t.Skip("Old FUSE protocol")
|
|
}
|
|
|
|
f, err := os.Open(mnt.Dir + "/child")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer f.Close()
|
|
|
|
{
|
|
buf := make([]byte, 100)
|
|
for i := 0; i < 10; i++ {
|
|
n, err := f.ReadAt(buf, 0)
|
|
if err != nil && err != io.EOF {
|
|
t.Fatalf("readat error: %v", err)
|
|
}
|
|
if g, e := string(buf[:n]), invalidateDataContent1; g != e {
|
|
t.Errorf("wrong content: %q != %q", g, e)
|
|
}
|
|
}
|
|
}
|
|
if g, e := a.read.Count(), uint32(1); g != e {
|
|
t.Errorf("wrong Read call count: %d != %d", g, e)
|
|
}
|
|
|
|
t.Logf("invalidating...")
|
|
a.data.Store(invalidateDataContent2)
|
|
if err := mnt.Server.InvalidateNodeData(a); err != nil {
|
|
t.Fatalf("invalidate error: %v", err)
|
|
}
|
|
|
|
if g, e := a.read.Count(), uint32(1); g != e {
|
|
t.Errorf("wrong Read call count: %d != %d", g, e)
|
|
}
|
|
|
|
{
|
|
// explicitly don't cross the EOF, to trigger more edge cases
|
|
// (Linux will always do Getattr if you cross what it believes
|
|
// the EOF to be)
|
|
const bufSize = len(invalidateDataContent2) - 3
|
|
buf := make([]byte, bufSize)
|
|
for i := 0; i < 10; i++ {
|
|
n, err := f.ReadAt(buf, 0)
|
|
if err != nil && err != io.EOF {
|
|
t.Fatalf("readat error: %v", err)
|
|
}
|
|
if g, e := string(buf[:n]), invalidateDataContent2[:bufSize]; g != e {
|
|
t.Errorf("wrong content: %q != %q", g, e)
|
|
}
|
|
}
|
|
}
|
|
if g, e := a.read.Count(), uint32(2); g != e {
|
|
t.Errorf("wrong Read call count: %d != %d", g, e)
|
|
}
|
|
}
|
|
|
|
type invalidateDataPartial struct {
|
|
fs.NodeRef
|
|
t testing.TB
|
|
attr record.Counter
|
|
read record.Counter
|
|
}
|
|
|
|
var invalidateDataPartialContent = strings.Repeat("hello, world\n", 1000)
|
|
|
|
var _ fs.Node = (*invalidateDataPartial)(nil)
|
|
|
|
func (i *invalidateDataPartial) Attr(ctx context.Context, a *fuse.Attr) error {
|
|
i.attr.Inc()
|
|
i.t.Logf("Attr called, #%d", i.attr.Count())
|
|
a.Mode = 0600
|
|
a.Size = uint64(len(invalidateDataPartialContent))
|
|
return nil
|
|
}
|
|
|
|
var _ fs.HandleReader = (*invalidateDataPartial)(nil)
|
|
|
|
func (i *invalidateDataPartial) Read(ctx context.Context, req *fuse.ReadRequest, resp *fuse.ReadResponse) error {
|
|
i.read.Inc()
|
|
i.t.Logf("Read called, #%d", i.read.Count())
|
|
fuseutil.HandleRead(req, resp, []byte(invalidateDataPartialContent))
|
|
return nil
|
|
}
|
|
|
|
func TestInvalidateNodeDataRangeMiss(t *testing.T) {
|
|
// This test may see false positive failures when run under
|
|
// extreme memory pressure.
|
|
t.Parallel()
|
|
a := &invalidateDataPartial{
|
|
t: t,
|
|
}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": a}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
if !mnt.Conn.Protocol().HasInvalidate() {
|
|
t.Skip("Old FUSE protocol")
|
|
}
|
|
|
|
f, err := os.Open(mnt.Dir + "/child")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer f.Close()
|
|
|
|
buf := make([]byte, 4)
|
|
for i := 0; i < 10; i++ {
|
|
if _, err := f.ReadAt(buf, 0); err != nil {
|
|
t.Fatalf("readat error: %v", err)
|
|
}
|
|
}
|
|
if g, e := a.read.Count(), uint32(1); g != e {
|
|
t.Errorf("wrong Read call count: %d != %d", g, e)
|
|
}
|
|
|
|
t.Logf("invalidating an uninteresting block...")
|
|
if err := mnt.Server.InvalidateNodeDataRange(a, 4096, 4096); err != nil {
|
|
t.Fatalf("invalidate error: %v", err)
|
|
}
|
|
|
|
for i := 0; i < 10; i++ {
|
|
if _, err := f.ReadAt(buf, 0); err != nil {
|
|
t.Fatalf("readat error: %v", err)
|
|
}
|
|
}
|
|
// The page invalidated is not the page we're reading, so it
|
|
// should stay in cache.
|
|
if g, e := a.read.Count(), uint32(1); g != e {
|
|
t.Errorf("wrong Read call count: %d != %d", g, e)
|
|
}
|
|
}
|
|
|
|
func TestInvalidateNodeDataRangeHit(t *testing.T) {
|
|
// This test may see false positive failures when run under
|
|
// extreme memory pressure.
|
|
t.Parallel()
|
|
a := &invalidateDataPartial{
|
|
t: t,
|
|
}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{&fstestutil.ChildMap{"child": a}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
if !mnt.Conn.Protocol().HasInvalidate() {
|
|
t.Skip("Old FUSE protocol")
|
|
}
|
|
|
|
f, err := os.Open(mnt.Dir + "/child")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer f.Close()
|
|
|
|
const offset = 4096
|
|
buf := make([]byte, 4)
|
|
for i := 0; i < 10; i++ {
|
|
if _, err := f.ReadAt(buf, offset); err != nil {
|
|
t.Fatalf("readat error: %v", err)
|
|
}
|
|
}
|
|
if g, e := a.read.Count(), uint32(1); g != e {
|
|
t.Errorf("wrong Read call count: %d != %d", g, e)
|
|
}
|
|
|
|
t.Logf("invalidating where the reads are...")
|
|
if err := mnt.Server.InvalidateNodeDataRange(a, offset, 4096); err != nil {
|
|
t.Fatalf("invalidate error: %v", err)
|
|
}
|
|
|
|
for i := 0; i < 10; i++ {
|
|
if _, err := f.ReadAt(buf, offset); err != nil {
|
|
t.Fatalf("readat error: %v", err)
|
|
}
|
|
}
|
|
// One new read
|
|
if g, e := a.read.Count(), uint32(2); g != e {
|
|
t.Errorf("wrong Read call count: %d != %d", g, e)
|
|
}
|
|
}
|
|
|
|
type invalidateEntryRoot struct {
|
|
fs.NodeRef
|
|
t testing.TB
|
|
lookup record.Counter
|
|
}
|
|
|
|
var _ fs.Node = (*invalidateEntryRoot)(nil)
|
|
|
|
func (i *invalidateEntryRoot) Attr(ctx context.Context, a *fuse.Attr) error {
|
|
a.Mode = 0600 | os.ModeDir
|
|
return nil
|
|
}
|
|
|
|
var _ fs.NodeStringLookuper = (*invalidateEntryRoot)(nil)
|
|
|
|
func (i *invalidateEntryRoot) Lookup(ctx context.Context, name string) (fs.Node, error) {
|
|
if name != "child" {
|
|
return nil, fuse.ENOENT
|
|
}
|
|
i.lookup.Inc()
|
|
i.t.Logf("Lookup called, #%d", i.lookup.Count())
|
|
return fstestutil.File{}, nil
|
|
}
|
|
|
|
func TestInvalidateEntry(t *testing.T) {
|
|
// This test may see false positive failures when run under
|
|
// extreme memory pressure.
|
|
t.Parallel()
|
|
a := &invalidateEntryRoot{
|
|
t: t,
|
|
}
|
|
mnt, err := fstestutil.MountedT(t, fstestutil.SimpleFS{a}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
if !mnt.Conn.Protocol().HasInvalidate() {
|
|
t.Skip("Old FUSE protocol")
|
|
}
|
|
|
|
for i := 0; i < 10; i++ {
|
|
if _, err := os.Stat(mnt.Dir + "/child"); err != nil {
|
|
t.Fatalf("stat error: %v", err)
|
|
}
|
|
}
|
|
if g, e := a.lookup.Count(), uint32(1); g != e {
|
|
t.Errorf("wrong Lookup call count: %d != %d", g, e)
|
|
}
|
|
|
|
t.Logf("invalidating...")
|
|
if err := mnt.Server.InvalidateEntry(a, "child"); err != nil {
|
|
t.Fatalf("invalidate error: %v", err)
|
|
}
|
|
|
|
for i := 0; i < 10; i++ {
|
|
if _, err := os.Stat(mnt.Dir + "/child"); err != nil {
|
|
t.Fatalf("stat error: %v", err)
|
|
}
|
|
}
|
|
if g, e := a.lookup.Count(), uint32(2); g != e {
|
|
t.Errorf("wrong Lookup call count: %d != %d", g, e)
|
|
}
|
|
}
|
|
|
|
type contextFile struct {
|
|
fstestutil.File
|
|
}
|
|
|
|
var contextFileSentinel int
|
|
|
|
func (contextFile) Open(ctx context.Context, req *fuse.OpenRequest, resp *fuse.OpenResponse) (fs.Handle, error) {
|
|
v := ctx.Value(&contextFileSentinel)
|
|
if v == nil {
|
|
return nil, fuse.ESTALE
|
|
}
|
|
data, ok := v.(string)
|
|
if !ok {
|
|
return nil, fuse.EIO
|
|
}
|
|
resp.Flags |= fuse.OpenDirectIO
|
|
return fs.DataHandle([]byte(data)), nil
|
|
}
|
|
|
|
func TestContext(t *testing.T) {
|
|
t.Parallel()
|
|
const input = "kilroy was here"
|
|
mnt, err := fstestutil.MountedT(t,
|
|
fstestutil.SimpleFS{&fstestutil.ChildMap{"child": contextFile{}}},
|
|
&fs.Config{
|
|
WithContext: func(ctx context.Context, req fuse.Request) context.Context {
|
|
return context.WithValue(ctx, &contextFileSentinel, input)
|
|
},
|
|
})
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
data, err := ioutil.ReadFile(mnt.Dir + "/child")
|
|
if err != nil {
|
|
t.Fatalf("cannot read context file: %v", err)
|
|
}
|
|
if g, e := string(data), input; g != e {
|
|
t.Errorf("read wrong data: %q != %q", g, e)
|
|
}
|
|
}
|
|
|
|
type goexitFile struct {
|
|
fstestutil.File
|
|
}
|
|
|
|
func (goexitFile) Open(ctx context.Context, req *fuse.OpenRequest, resp *fuse.OpenResponse) (fs.Handle, error) {
|
|
log.Println("calling runtime.Goexit...")
|
|
runtime.Goexit()
|
|
panic("not reached")
|
|
}
|
|
|
|
func TestGoexit(t *testing.T) {
|
|
t.Parallel()
|
|
mnt, err := fstestutil.MountedT(t,
|
|
fstestutil.SimpleFS{&fstestutil.ChildMap{"child": goexitFile{}}}, nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer mnt.Close()
|
|
|
|
_, err = ioutil.ReadFile(mnt.Dir + "/child")
|
|
if nerr, ok := err.(*os.PathError); !ok || nerr.Err != syscall.EIO {
|
|
t.Fatalf("wrong error from exiting handler: %T: %v", err, err)
|
|
}
|
|
}
|